diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 0a6152b912bb..7a0ef59dce74 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3, 6, 6, "final", 0
+current_version = 4, 0, 8, "final", 0
 commit = False
 tag = False
 parse = (?P<major>\d+)\,\ (?P<minor>\d+)\,\ (?P<patch>\d+)\,\ \"(?P<release>\S+)\"\,\ (?P<build>\d+)
diff --git a/.dockerignore b/.dockerignore
deleted file mode 100644
index 1ddfd6e1cc5b..000000000000
--- a/.dockerignore
+++ /dev/null
@@ -1,44 +0,0 @@
-.git
-.dockerignore
-Dockerfile
-
-# project files
-coverage/
-
-dev_mode/listings
-dev_mode/schemas
-dev_mode/static
-dev_mode/themes
-dev_mode/workspaces
-dev_mode/stats.json
-
-# Skip docs
-docs/
-**/docs/source/_build
-
-# Skip examples
-examples/
-
-junit.xml
-
-galata
-jupyterlab/geckodriver
-jupyterlab/static
-jupyterlab/schemas
-jupyterlab/themes
-jupyterlab/style.js
-jupyterlab/tests/**/static
-jupyterlab/tests/**/labextension
-
-# Remove after next release
-jupyterlab/imports.css
-
-packages/nbconvert-css/style/
-packages/services/examples/node/config.json
-packages/services/examples/browser/tmp
-packages/theme-*/static
-
-tests/**/coverage
-tests/**/.cache-loader
-
-**/node_modules
diff --git a/.eslintignore b/.eslintignore
index 713a2a5ff9f3..74d8696bbd81 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -17,20 +17,24 @@ dev_mode/workspaces
 docs/_build
 docs/api
 docs/build
-examples/chrome-example-test.js
+examples/example.spec.ts
 examples/federated/core_package/index.template.js
+examples/federated/core_package/index.js
+examples/federated/labextensions
+galata/playwright-report
 jupyterlab/chrome-test.js
 jupyterlab/geckodriver
+jupyterlab/staging/yarn.js
+jupyterlab/staging/index.js
+jupyterlab/staging/webpack.config.js
 packages/extensionmanager-extension/examples/listings
 packages/nbconvert-css/raw.js
+packages/services/dist
 packages/ui-components/src/icon/iconimports.ts
-packages/ui-components/storybook-static
-jupyterlab/staging/yarn.js
-jupyterlab/staging/index.js
 tsconfigdoc.json
-galata/playwright-report
-examples/federated/core_package/index.js
-examples/federated/labextensions
+
+#TypeDoc
+typedoc-theme/
 
 # jetbrains IDE stuff
 .idea/
@@ -38,3 +42,7 @@ examples/federated/labextensions
 # ms IDE stuff
 .history/
 .vscode/
+
+# generated LSP interfaces
+packages/lsp/src/_*
+packages/lsp/schema.js
diff --git a/.eslintrc.js b/.eslintrc.js
index 85d3e623bee2..dc45d29e5d06 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -7,24 +7,46 @@ module.exports = {
     'jest/globals': true
   },
   globals: {
-    JSX: 'readonly'
+    BigInt: 'readonly',
+    HTMLCollectionOf: 'readonly',
+    JSX: 'readonly',
+    NodeJS: 'readonly',
+    RequestInit: 'readonly',
+    RequestInfo: 'readonly',
+    ScrollLogicalPosition: 'readonly'
   },
   root: true,
   extends: [
     'eslint:recommended',
     'plugin:@typescript-eslint/eslint-recommended',
     'plugin:@typescript-eslint/recommended',
-    'prettier/@typescript-eslint',
-    'plugin:react/recommended',
-    'plugin:jest/recommended'
+    'prettier',
+    'plugin:react/recommended'
   ],
   parser: '@typescript-eslint/parser',
   parserOptions: {
-    project: 'tsconfig.eslint.json'
+    ecmaVersion: 'ES2018',
+    project: ['./tsconfig.eslint.json']
   },
-  plugins: ['@typescript-eslint', 'jest'],
+  plugins: ['@typescript-eslint'],
+  overrides: [
+    {
+      files: ['packages/**/*.spec.ts', 'testutils/**/*.spec.ts'],
+      plugins: ['jest'],
+      extends: ['plugin:jest/recommended'],
+      rules: {
+        'jest/no-conditional-expect': 'warn',
+        'jest/valid-title': 'warn',
+        'jest/no-standalone-expect': [
+          'error',
+          {
+            additionalTestBlockFunctions: ['it']
+          }
+        ]
+      }
+    }
+  ],
   rules: {
-    '@typescript-eslint/no-floating-promises': ['error', { ignoreVoid: true }],
     '@typescript-eslint/naming-convention': [
       'error',
       {
@@ -38,7 +60,6 @@ module.exports = {
     ],
     '@typescript-eslint/no-unused-vars': ['warn', { args: 'none' }],
     '@typescript-eslint/no-use-before-define': 'off',
-    '@typescript-eslint/camelcase': 'off',
     '@typescript-eslint/no-explicit-any': 'off',
     '@typescript-eslint/no-non-null-assertion': 'off',
     '@typescript-eslint/no-namespace': 'off',
@@ -51,8 +72,89 @@ module.exports = {
     '@typescript-eslint/no-empty-interface': 'off',
     '@typescript-eslint/triple-slash-reference': 'warn',
     '@typescript-eslint/no-inferrable-types': 'off',
-    'jest/no-conditional-expect': 'warn',
-    'jest/valid-title': 'warn',
+    camelcase: [
+      'error',
+      {
+        allow: [
+          '__webpack_public_path__',
+          '__webpack_share_scopes__',
+          '__webpack_init_sharing__',
+          '_jupyter_types_experimental',
+          'allow_stdin',
+          'allowed_extensions',
+          'allowed_extensions_uris',
+          'blocked_extensions',
+          'blocked_extensions_uris',
+          'bundles_extension',
+          'cell_type',
+          'check_update',
+          'clear_output',
+          'codemirror_mode',
+          'comm_close',
+          'comm_id',
+          'comm_msg',
+          'comm_open',
+          'copy_from',
+          'creation_date',
+          'cursor_end',
+          'cursor_pos',
+          'cursor_start',
+          'detail_level',
+          'display_data',
+          'display_id',
+          'display_name',
+          'embed_options',
+          'execute_input',
+          'execute_result',
+          'execution_count',
+          'execution_state',
+          'extension_data',
+          'extension_name',
+          'file_extension',
+          'help_links',
+          'hist_access_type',
+          'ids_only',
+          'implementation_version',
+          'installed_version',
+          'is_allowed',
+          'jlab_core',
+          'jupyterlab_extensions',
+          'jupyterlab_mime_extensions',
+          'kernel_spec',
+          'language_info',
+          'last_modified',
+          'last_update_date',
+          'latest_version',
+          'lineWrap_type',
+          'msg_type',
+          'msg_id',
+          'msgid_plural',
+          'nbconverter_exporter',
+          'nbformat_minor',
+          'orig_nbformat',
+          'output_mimetype',
+          'output_type',
+          'outputs_hidden',
+          'parent_header',
+          'per_page',
+          'pf_re',
+          'pkg_type',
+          'protocol_version',
+          'pygments_lexer',
+          'request_seq',
+          'slide_type',
+          'source_hidden',
+          'shutdown_reply',
+          'stop_on_error',
+          'store_history',
+          'target_name',
+          'target_module',
+          'UNSAFE_componentWillUpdate',
+          'UNSAFE_componentWillReceiveProps',
+          'user_expressions'
+        ]
+      }
+    ],
     'id-match': ['error', '^[a-zA-Z_]+[a-zA-Z0-9_]*$'], // https://certitude.consulting/blog/en/invisible-backdoor/
     'no-inner-declarations': 'off',
     'no-prototype-builtins': 'off',
diff --git a/.eslintrc.typecheck.js b/.eslintrc.typecheck.js
new file mode 100644
index 000000000000..a0890d980f06
--- /dev/null
+++ b/.eslintrc.typecheck.js
@@ -0,0 +1,10 @@
+module.exports = {
+  extends: ['.eslintrc.js'],
+  parserOptions: {
+    project: 'tsconfig.eslint.json'
+  },
+  rules: {
+    '@typescript-eslint/no-floating-promises': ['error', { ignoreVoid: true }],
+    'jest/no-done-callback': 'off'
+  }
+};
diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
index bce55ccc3a2f..4d23fddb92ce 100644
--- a/.git-blame-ignore-revs
+++ b/.git-blame-ignore-revs
@@ -1,2 +1,8 @@
-# Run Black: https://github.com/jupyterlab/jupyterlab/pull/12282
-cde0521528481befbb81fda0be8fee77dc5455df
+# Run pre-commit with black: https://github.com/jupyterlab/jupyterlab/pull/12279
+6df5e0b6e8ec740ffa2f84f198820d1968e4d74d
+# Add linter rule for sorting import: https://github.com/jupyterlab/jupyterlab/pull/10344
+dbdefed9db9332381fe4104bdf53ec314451951f
+# Bump linters: https://github.com/jupyterlab/jupyterlab/pull/12582
+b57ec962a7b8cda65bb89a72223f195564f8387a
+# Add license header fix job: https://github.com/jupyterlab/jupyterlab/pull/12872
+1bcbf90f26bc9141681965a094c75985b758a2c9
diff --git a/.github/ISSUE_TEMPLATE/bug_report.md b/.github/ISSUE_TEMPLATE/bug_report.md
deleted file mode 100644
index d663a30ec4ed..000000000000
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ /dev/null
@@ -1,57 +0,0 @@
-______________________________________________________________________
-
-## name: Bug report about: Create a report to help us improve
-
-<!--
-Welcome! Before creating a new issue:
-* Search for relevant issues
-* Follow the issue reporting guidelines:
-https://jupyterlab.readthedocs.io/en/3.6.x/getting_started/issue.html
--->
-
-## Description
-
-<!--Describe the bug clearly and concisely. Include screenshots if possible-->
-
-## Reproduce
-
-<!--Describe step-by-step instructions to reproduce the behavior-->
-
-1. Go to '...'
-1. Click on '...'
-1. Scroll down to '...'
-1. See error '...'
-
-<!--Describe how you diagnosed the issue. See the guidelines at
- https://jupyterlab.readthedocs.io/en/3.6.x/getting_started/issue.html -->
-
-## Expected behavior
-
-<!--Describe what you expected to happen-->
-
-## Context
-
-<!--Complete the following for context, and add any other relevant context-->
-
-- Operating System and version:
-- Browser and version:
-- JupyterLab version:
-
-<details><summary>Troubleshoot Output</summary>
-<pre>
-Paste the output from running `jupyter troubleshoot` from the command line here.
-You may want to sanitize the paths in the output.
-</pre>
-</details>
-
-<details><summary>Command Line Output</summary>
-<pre>
-Paste the output from your command line running `jupyter lab` here, use `--debug` if possible.
-</pre>
-</details>
-
-<details><summary>Browser Output</summary>
-<pre>
-Paste the output from your browser Javascript console here.
-</pre>
-</details>
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
deleted file mode 100644
index 343465d11c05..000000000000
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ /dev/null
@@ -1,32 +0,0 @@
-______________________________________________________________________
-
-## name: Feature Request about: Suggest something to add to JupyterLab labels: enhancement
-
-<!--
-Welcome! Thanks for thinking of a way to improve JupyterLab. If this solves a problem for you, then it probably solves that problem for lots of people! So the whole community will benefit from this request.
-
-
-Before creating a new feature request please search the issues for relevant feature requests.
--->
-
-### Problem
-
-<!-- Provide a clear and concise description of what problem this feature will solve. For example:
-
-* I'm always frustrated when [...] because [...]
-* I would like it if [...] happened when I [...] because [...]
--->
-
-### Proposed Solution
-
-<!-- Provide a clear and concise description of a way to accomplish what you want. For example:
-
-* Add an option so that when [...]  [...] will happen
- -->
-
-### Additional context
-
-<!-- Add any other context or screenshots about the feature request here. You can also include links to examples of other programs that have something similar to your request. For example:
-
-* Another project [...] solved this by [...]
--->
diff --git a/.github/codeql/codeql-config.yml b/.github/codeql/codeql-config.yml
index 635a80d851dd..428c924883de 100644
--- a/.github/codeql/codeql-config.yml
+++ b/.github/codeql/codeql-config.yml
@@ -12,6 +12,3 @@ paths-ignore:
   - examples/federated/core_package/index.js
   - jupyterlab/staging/index.js
   - dev_mode/index.js
-  # TODO: remove when fixed upstream
-  # see https://github.com/jupyterlab/jupyterlab/issues/10522 for more info
-  - packages/services/src/kernel/messages.ts
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000000..a34b92fc05ae
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,15 @@
+version: 2
+updates:
+  # Set update schedule for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every month
+      interval: "monthly"
+  # Set update schedule for pip
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every month
+      # Align with pre-commit configuration .pre-commit-config.yaml
+      interval: "monthly"
diff --git a/.github/jupyterlab-probot.yml b/.github/jupyterlab-probot.yml
new file mode 100644
index 000000000000..3703b3e3da87
--- /dev/null
+++ b/.github/jupyterlab-probot.yml
@@ -0,0 +1,3 @@
+binderUrlSuffix: "?urlpath=lab"
+addBinderLink: true
+triageLabel: "status:Needs Triage"
diff --git a/.github/labeler.yml b/.github/labeler.yml
index 2bce9ba890c2..ddadd9e99d4b 100644
--- a/.github/labeler.yml
+++ b/.github/labeler.yml
@@ -5,6 +5,8 @@ Design System CSS:
 documentation:
   - docs/**/*
   - docs/*
+  - '*.md'
+  - '**/*.md'
 
 tag:CSS:
   - '**/*.css'
@@ -55,8 +57,6 @@ pkg:cells:
   - packages/cells/*
 
 pkg:celltags:
-  - packages/celltags/**/*
-  - packages/celltags/*
   - packages/celltags-extension/**/*
   - packages/celltags-extension/*
 
@@ -64,12 +64,6 @@ pkg:codeeditor:
   - packages/codeeditor/**/*
   - packages/codeeditor/*
 
-pkg:collaboration:
-  - packages/collaboration/**/*
-  - packages/collaboration/*
-  - packages/collaboration-extension/**/*
-  - packages/collaboration-extension/*
-
 pkg:codemirror:
   - packages/codemirror/**/*
   - packages/codemirror/*
@@ -110,12 +104,6 @@ pkg:docmanager:
   - packages/docmanager-extension/**/*
   - packages/docmanager-extension/*
 
-pkg:docprovider:
-  - packages/docprovider/**/*
-  - packages/docprovider/*
-  - packages/docprovider-extension/**/*
-  - packages/docprovider-extension/*
-
 pkg:docregistry:
   - packages/docregistry/**/*
   - packages/docregistry/*
@@ -190,6 +178,12 @@ pkg:logconsole:
   - packages/logconsole-extension/**/*
   - packages/logconsole-extension/*
 
+pkg:lsp:
+  - packages/lsp/**/*
+  - packages/lsp/*
+  - packages/lsp-extension/**/*
+  - packages/lsp-extension/*
+
 pkg:mainmenu:
   - packages/mainmenu/**/*
   - packages/mainmenu/*
@@ -202,11 +196,9 @@ pkg:markdownviewer:
   - packages/markdownviewer-extension/**/*
   - packages/markdownviewer-extension/*
 
-pkg:mathjax2:
-  - packages/mathjax2/**/*
-  - packages/mathjax2/*
-  - packages/mathjax2-extension/**/*
-  - packages/mathjax2-extension/*
+pkg:mathjax:
+  - packages/mathjax-extension/**/*
+  - packages/mathjax-extension/*
 
 pkg:notebook:
   - packages/notebook/**/*
@@ -308,12 +300,6 @@ pkg:ui-components:
   - packages/ui-components-extension/**/*
   - packages/ui-components-extension/*
 
-pkg:vdom:
-  - packages/vdom/**/*
-  - packages/vdom/*
-  - packages/vdom-extension/**/*
-  - packages/vdom-extension/*
-
 pkg:vega:
   - packages/vega5-extension/**/*
   - packages/vega5-extension/*
diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 23de33d09d39..d7c2c2df8a4d 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,31 +1,26 @@
-## Jira ticket
+<!--
+Thanks for contributing to JupyterLab!
+Please fill out the following items to submit a pull request.
+See the contributing guidelines for more information:
+https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md
+-->
 
-https://spotinst.atlassian.net/browse/BGD-XXXX
+## References
 
-## Checklist
-- [ ] I added a Jira ticket link
-- [ ] I added a changeset with the `simple-changeset add` command
-- [ ] I filled in the test plan
-- [ ] I executed the tests and filled in the test results
+<!-- Note issue numbers this pull request addresses (should be at least one, see contributing guidelines above). -->
 
-## Why
+<!-- Note any other pull requests that address this issue and how this pull request is different. -->
 
-_A short description of why this change is necessary. If this is a bug fix, include steps to reproduce the issue_
+## Code changes
 
-## What
+<!-- Describe the code changes and how they address the issue. -->
 
-_What has been modified. Expose the key decisions you have made during this PR to facilitate the discussion with your reviewer_
+## User-facing changes
 
-## How to test
+<!-- Describe any visual or user interaction changes and how they address the issue. -->
 
-_Step by step instructions to test your feature/fix_
+<!-- For visual changes, include before and after screenshots or GIF/mp4/other video demo here. -->
 
-## Test plan and results
+## Backwards-incompatible changes
 
-_Feel free to add screenshots showing test results_
-
-| Test | Description       | Result | Notes                      |
-|------|-------------------|--------|----------------------------|
-| 1    | Test with input A | Pass   | Some notes about the test  |
-| 2    | Test with input B | Pass   | Some notes about the test  |
-| 3    | Test with input C | Pass   | Some notes about the test  |
+<!-- Describe any backwards-incompatible changes to JupyterLab public APIs. -->
diff --git a/.github/workflows/answered.yml b/.github/workflows/answered.yml
new file mode 100644
index 000000000000..99326d98194b
--- /dev/null
+++ b/.github/workflows/answered.yml
@@ -0,0 +1,24 @@
+# This action automatically schedules issues to be closed that have been
+# labeled as answered if there is no activity on them for 30 days. This takes
+# care of the common usecase of an issue being answered to the best of our
+# ability and no other follow-up from the submitter.
+name: 'Close answered issues'
+on:
+  schedule:
+    - cron: '30 1 * * *'
+
+permissions:
+  issues: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v8
+        with:
+          days-before-pr-stale: -1
+          days-before-pr-close: -1
+          days-before-issue-stale: 7
+          days-before-issue-close: 5
+          stale-issue-label: 'status:Closing as Answered'
+          only-issue-labels: 'status:Answered'
diff --git a/.github/workflows/auto_author_assign.yml b/.github/workflows/auto_author_assign.yml
new file mode 100644
index 000000000000..046a6a71bfed
--- /dev/null
+++ b/.github/workflows/auto_author_assign.yml
@@ -0,0 +1,15 @@
+# https://github.com/marketplace/actions/auto-author-assign
+name: 'Auto Author Assign'
+
+on:
+  pull_request_target:
+    types: [opened, reopened]
+
+permissions:
+  pull-requests: write
+
+jobs:
+  assign-author:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: toshimaru/auto-author-assign@v1.6.2
diff --git a/.github/workflows/benchmark-report.yml b/.github/workflows/benchmark-report.yml
new file mode 100644
index 000000000000..01319563276c
--- /dev/null
+++ b/.github/workflows/benchmark-report.yml
@@ -0,0 +1,83 @@
+# Commenting on a PR requires write access
+# but PR opened from forks does not get write access
+# except when triggered with `pull_request_target`
+#
+# So the comments payload must be created from a `pull_request` event workflow.
+# Then that payload can be posted as PR comment in a `pull_request_target` event workflow.
+#
+# Documentation: https://docs.github.com/en/actions/reference/events-that-trigger-workflows#pull_request_target
+# Blog post with example: https://securitylab.github.com/research/github-actions-preventing-pwn-requests/
+
+name: Comment on the pull request
+
+on:
+  workflow_run:
+    workflows: ['Benchmark Tests']
+    types:
+      - completed
+
+permissions:
+  pull-requests: write
+
+jobs:
+  upload:
+    runs-on: ubuntu-latest
+    # Carry action even on failure (happening if memory leak tests fail for example)
+    if: github.event.workflow_run.conclusion == 'success' || github.event.workflow_run.conclusion == 'failure'
+    steps:
+      - name: 'Download artifact'
+        uses: actions/github-script@v6
+        with:
+          script: |
+            var artifacts = await github.rest.actions.listWorkflowRunArtifacts({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               run_id: ${{ github.event.workflow_run.id }},
+            });
+            var matchArtifact = artifacts.data.artifacts.filter((artifact) => {
+              return artifact.name == "benchmark-assets"
+            })[0];
+            var download = await github.rest.actions.downloadArtifact({
+               owner: context.repo.owner,
+               repo: context.repo.repo,
+               artifact_id: matchArtifact.id,
+               archive_format: 'zip',
+            });
+            var fs = require('fs');
+            fs.writeFileSync('${{ github.workspace }}/benchmark-assets.zip', Buffer.from(download.data));
+      - run: unzip benchmark-assets.zip
+
+      - name: 'Comment on PR'
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            var fs = require('fs');
+            var issue_number = Number(fs.readFileSync('./benchmark-results/NR'));
+            var report = String(fs.readFileSync('./benchmark-results/lab-benchmark.md'));
+            var memory_report = String(fs.readFileSync('./memory-leak-report.md'));
+
+            // Get the existing comments.
+            const {data: comments} = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: issue_number,
+            })
+
+            // Find any comment already made by the bot.
+            const botComment = comments.find(comment => comment.user.id === 41898282)
+            if (botComment) {
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: botComment.id,
+                body: [report, memory_report].join('\n')
+              })
+            } else {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issue_number,
+                body: [report, memory_report].join('\n')
+              });
+            }
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
new file mode 100644
index 000000000000..bee96c204ea5
--- /dev/null
+++ b/.github/workflows/benchmark.yml
@@ -0,0 +1,259 @@
+name: Benchmark Tests
+
+on:
+  # schedule:
+  #   - cron: '12 1 * * 0'
+  pull_request_review:
+
+jobs:
+  test:
+    name: Execute benchmark tests
+    if: github.event_name == 'schedule' || (github.event_name == 'pull_request_review' && (github.event.review.state == 'approved' || contains(github.event.review.body, 'please run benchmark')))
+
+    runs-on: ubuntu-22.04
+
+    env:
+      BENCHMARK_NUMBER_SAMPLES: 100
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          # Need to fetch enough nodes to get the common ancestor - but don't want to fetch everything
+          fetch-depth: 100
+
+      - name: Get hashes for schedule event
+        if: ${{ github.event_name == 'schedule' }}
+        run: |
+          echo "OLD_REF_SHA=$(git rev-parse 'main@{7 days ago}')" >> $GITHUB_ENV
+          echo "NEW_REF_SHA=$(git rev-parse 'main')" >> $GITHUB_ENV
+
+      - name: Get hashes for PR review event
+        if: ${{ github.event_name == 'pull_request_review' }}
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const child_process = require("child_process");
+            const pull_request = context.payload.pull_request;
+
+            child_process.exec(`git merge-base ${pull_request.head.sha} ${pull_request.base.sha}`, (error, stdout, stderr) => {
+              if (error) {
+                console.log(error);
+                process.exit(1);
+                return;
+              }
+              if (stderr) {
+                console.log(stderr);
+                process.exit(1);
+                return;
+              }
+
+              core.exportVariable('OLD_REF_SHA', stdout.trim());
+              core.exportVariable('NEW_REF_SHA', pull_request.head.sha);
+              core.exportVariable('PULL_REQUEST_ID', pull_request.number);
+            });
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - uses: iterative/setup-cml@v2
+
+      # First run the benchmark on the old reference
+      - name: Checkout old reference
+        run: |
+          echo Checking out ${OLD_REF_SHA}...
+          git checkout ${OLD_REF_SHA}
+
+      - name: Install dependencies
+        run: |
+          bash ./scripts/ci_install.sh
+          # Build dev-mode
+          jlpm run build
+
+      - name: Launch JupyterLab
+        shell: bash
+        run: |
+          # Mount a volume to overwrite the server configuration
+          (jlpm start > /tmp/jupyterlab_server_old.log 2>&1) &
+        working-directory: galata
+
+      - name: Install browser
+        run: |
+          # Install only Chromium browser
+          jlpm playwright install chromium
+          jlpm run build
+        working-directory: galata
+
+      - name: Wait for JupyterLab
+        uses: ifaxity/wait-on-action@v1
+        with:
+          resource: http-get://localhost:8888/lab
+          timeout: 360000
+
+      - name: Execute benchmark tests
+        continue-on-error: true
+        working-directory: galata
+        run: |
+          jlpm run test:benchmark -u
+
+      - name: Kill the server
+        shell: bash
+        run: |
+          kill -s SIGKILL $(pgrep jupyter-lab)
+
+      # Second run the benchmark on the new reference
+      - name: Checkout latest version
+        run: |
+          cp galata/lab-benchmark-expected.json /tmp/
+          git restore galata/lab-benchmark-expected.json || true  # Not versioned any more
+          echo Checking out ${NEW_REF_SHA}...
+          git checkout ${NEW_REF_SHA}
+
+      - name: Install dependencies
+        run: |
+          # Reset installation
+          jlpm run clean:slate
+          jlpm run build
+
+      - name: Launch JupyterLab
+        working-directory: galata
+        run: |
+          # Mount a volume to overwrite the server configuration
+          (jlpm start > /tmp/jupyterlab_server_new.log 2>&1) &
+
+      - name: Install browser
+        working-directory: galata
+        run: |
+          # Install only Chromium browser
+          jlpm playwright install chromium
+          jlpm run build
+
+      - name: Wait for JupyterLab
+        uses: ifaxity/wait-on-action@v1
+        with:
+          resource: http-get://localhost:8888/lab
+          timeout: 360000
+
+      - name: Execute benchmark tests
+        continue-on-error: true
+        shell: bash
+        working-directory: galata
+        run: |
+          set -ex
+          # Update test screenshots - in case they have not yet been corrected on the challenger branch
+          BENCHMARK_NUMBER_SAMPLES=1 PW_VIDEO=1 jlpm run test:benchmark -u
+
+          # Copy reference here otherwise it will use the value from the update screenshots
+          # command called just before
+          cp /tmp/lab-benchmark-expected.json .
+
+          jlpm run test:benchmark
+
+      - name: Stop JupyterLab
+        if: always()
+        run: |
+          kill -s SIGTERM $(pgrep jupyter-lab)
+
+      - name: Generate the report
+        env:
+          REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPORT: ./benchmark-results/lab-benchmark.md
+        shell: bash
+        working-directory: galata
+        run: |
+          # Publish image to cml.dev
+          echo "" >> ${REPORT}
+          cml-publish ./benchmark-results/lab-benchmark.svg --md >> ${REPORT}
+          echo "" >> ${REPORT}
+
+          # Test if metadata have changed
+          export METADATA_DIFF="/tmp/metadata.diff"
+          diff -u <(jq --sort-keys .metadata benchmark-results/lab-benchmark.json) <(jq --sort-keys .metadata lab-benchmark-expected.json) > ${METADATA_DIFF} || true
+          if [[ -s ${METADATA_DIFF} ]]; then
+            echo "<details><summary>:exclamation: Test metadata have changed</summary>" >> ${REPORT}
+            echo "" >> ${REPORT}
+            echo "\`\`\`diff" >> ${REPORT}
+            cat ${METADATA_DIFF} >> ${REPORT}
+            echo "\`\`\`" >> ${REPORT}
+            echo "" >> ${REPORT}
+            echo "</details>" >> ${REPORT}
+          fi
+
+          # Set the report as summary
+          cat ${REPORT} >> ${GITHUB_STEP_SUMMARY}
+
+          # Copy the reference data to upload it as artifact
+          cp lab-benchmark-expected.json ./benchmark-results/
+
+          # Save PR number for comment publication
+          echo "${PULL_REQUEST_ID}" > ./benchmark-results/NR
+
+      - name: Upload Galata Test assets
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: benchmark-assets
+          path: |
+            galata/benchmark-results
+            galata/test-results
+
+      - name: Print JupyterLab logs
+        if: always()
+        run: |
+          cat /tmp/jupyterlab_server_old.log
+          cat /tmp/jupyterlab_server_new.log
+
+  memory-leak:
+    name: Execute memory-leak tests
+    if: github.event_name == 'schedule' || (github.event_name == 'pull_request_review' && (github.event.review.state == 'approved' || contains(github.event.review.body, 'please run benchmark')))
+
+    runs-on: ubuntu-22.04
+    timeout-minutes: 30
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Get hashes for PR review event
+        if: ${{ github.event_name == 'pull_request_review' }}
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const child_process = require("child_process");
+            const pull_request = context.payload.pull_request;
+            core.exportVariable('PULL_REQUEST_ID', pull_request.number);
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install dependencies
+        run: |
+          bash ./scripts/ci_install.sh
+          # Build dev-mode
+          jlpm run build
+
+      - name: Launch JupyterLab
+        shell: bash
+        run: |
+          # Mount a volume to overwrite the server configuration
+          jlpm start > /tmp/jupyterlab_server.log 2>&1 &
+        working-directory: galata
+
+      - name: Execute memory leak tests
+        id: memory_leaks
+        uses: jupyterlab/benchmarks/.github/actions/memory-leak@v1
+        with:
+          server_url: localhost:8888
+          artifacts_name: benchmark-assets
+
+      - name: Kill the server
+        if: always()
+        shell: bash
+        run: |
+          kill -s SIGKILL $(pgrep jupyter-lab)
+
+      - name: Print JupyterLab logs
+        if: always()
+        shell: bash
+        run: |
+          cat /tmp/jupyterlab_server.log
diff --git a/.github/workflows/check-i18n.yml b/.github/workflows/check-i18n.yml
new file mode 100644
index 000000000000..82078c88f6ee
--- /dev/null
+++ b/.github/workflows/check-i18n.yml
@@ -0,0 +1,48 @@
+name: Check internationalization changes
+
+on:
+  pull_request:
+
+jobs:
+  check_i18n:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install dependencies
+        run: |
+          python -m pip install -U pip jupyterlab-translate~=1.0
+
+      - name: Compute hash
+        id: currentHash
+        run: |
+          set -eux
+          HASH=$(python scripts/i18n_check.py | tail -n1)
+          echo "::set-output name=i18n::${HASH}"
+
+      - name: Checkout target
+        run: |
+          echo Checking ${GITHUB_BASE_REF}...
+          # Ref https://github.com/actions/checkout/issues/93
+          git fetch --depth=1 origin +refs/heads/${GITHUB_BASE_REF}:refs/remotes/origin/${GITHUB_BASE_REF}
+          git checkout ${GITHUB_BASE_REF}
+
+      - name: Check hash
+        env:
+          CURRENT: ${{ steps.currentHash.outputs.i18n }}
+        run: |
+          set -eux
+          EXPECTED=$(python scripts/i18n_check.py | tail -n1)
+          if [[ "${CURRENT}" != "${EXPECTED}" ]]; then
+            echo "Translatable strings have changed, this is only allowed on major or minor version bumps."
+            # Set job status as failed if
+            # - branch is not "main"
+            # - and current version is not a pre release of a zeroed patch version
+            if [[ "${GITHUB_BASE_REF}" != "main" && ! ( $(python setup.py --version) =~ ^[0-9]+\.[0-9]+\.0(\.dev|a|b|rc)[0-9]+$ ) ]]; then
+              exit 1
+            fi
+          fi
diff --git a/.github/workflows/check-release.yml b/.github/workflows/check-release.yml
new file mode 100644
index 000000000000..5fa2eca991cd
--- /dev/null
+++ b/.github/workflows/check-release.yml
@@ -0,0 +1,33 @@
+name: Check Release
+
+on:
+  push:
+    branches: [4.0.x]
+  pull_request:
+    branches: [4.0.x]
+  release:
+    types: [published]
+
+jobs:
+
+  check_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Check Release
+        uses: jupyter-server/jupyter_releaser/.github/actions/check-release@v2
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version_spec: next
+
+      - name: Upload Assets
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab-releaser-dist-${{ github.run_number }}
+          path: |
+            .jupyter_releaser_checkout/dist/*.*
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index bcc2b5764256..b6aa4521fd06 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -7,10 +7,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [3.6.x]
+    branches: [4.0.x]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [3.6.x]
+    branches: [4.0.x]
   schedule:
     - cron: '0 8 * * 3'
 
@@ -21,7 +21,7 @@ permissions:
 jobs:
   analyze:
     name: Analyze
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     strategy:
       fail-fast: false
@@ -34,7 +34,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
@@ -42,7 +42,7 @@ jobs:
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@v2
       with:
         languages: ${{ matrix.language }}
         config-file: ./.github/codeql/codeql-config.yml
@@ -55,7 +55,7 @@ jobs:
     # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
     # If this step fails, then you should remove it and run the build manually (see below)
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      uses: github/codeql-action/autobuild@v2
 
     # ℹ️ Command-line programs to run using the OS shell.
     # 📚 https://git.io/JvXDl
@@ -69,4 +69,4 @@ jobs:
     #   make release
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@v2
diff --git a/.github/workflows/enforce-label.yml b/.github/workflows/enforce-label.yml
new file mode 100644
index 000000000000..79b6f0eab6c4
--- /dev/null
+++ b/.github/workflows/enforce-label.yml
@@ -0,0 +1,13 @@
+name: Enforce PR label
+
+on:
+  pull_request_target:
+    types: [labeled, unlabeled, opened, edited, synchronize]
+jobs:
+  enforce-label:
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: write
+    steps:
+      - name: enforce-triage-label
+        uses: jupyterlab/maintainer-tools/.github/actions/enforce-label@v1
diff --git a/.github/workflows/galata-update.yml b/.github/workflows/galata-update.yml
new file mode 100644
index 000000000000..1c8b5afbbe83
--- /dev/null
+++ b/.github/workflows/galata-update.yml
@@ -0,0 +1,140 @@
+name: Update Playwright Snapshots
+
+on:
+  issue_comment:
+    types: [created, edited]
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update-galata-snapshots:
+    name: Update Galata References
+    if: ${{ github.event.issue.pull_request && (contains(github.event.comment.body, 'please update galata snapshots') || contains(github.event.comment.body, 'please update snapshots')) }}
+    timeout-minutes: 80
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: React to the triggering comment
+        run: |
+          gh api repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions --raw-field 'content=+1'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Configure git to use https
+        run: git config --global hub.protocol https
+
+      - name: Checkout the branch from the PR that triggered the job
+        run: gh pr checkout ${{ github.event.issue.number }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install dependencies
+        run: |
+          bash ./scripts/ci_install.sh
+          # Build dev-mode
+          jlpm run build
+
+      - uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          server_url: http-get://localhost:8888/lab
+          test_folder: galata
+          artifact_name: updated-galata-snapshots
+          report_name: update-galata-report
+
+      - name: Comment back on the PR
+        run: |
+          gh api repos/${{ github.repository }}/issues/${{ github.event.issue.number }}/comments --raw-field 'body=Galata snapshots updated.'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  update-documentation-snapshots:
+    name: Update Documentation Snapshots
+    if: ${{ github.event.issue.pull_request && (contains(github.event.comment.body, 'please update documentation snapshots') || contains(github.event.comment.body, 'please update snapshots')) }}
+    timeout-minutes: 80
+    runs-on: ubuntu-22.04
+
+    # Python version is frozen through strategy.matrix.python-version
+    # Python dependencies are frozen in the installation step
+    # Note: IPython is among the frozen package
+    strategy:
+      matrix:
+        # Freeze Python version because it appears in console header
+        python-version: ['3.10.6']
+
+    steps:
+      - name: React to the triggering comment
+        run: |
+          gh api repos/${{ github.repository }}/issues/comments/${{ github.event.comment.id }}/reactions --raw-field 'content=+1'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Checkout JupyterLab
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          path: core
+
+      - name: Checkout demo project
+        uses: actions/checkout@v4
+        with:
+          repository: jupyterlab/jupyterlab-demo
+          ref: master
+          path: demo
+
+      - name: Get demo folder
+        run: |
+          echo "JUPYTERLAB_GALATA_ROOT_DIR=$PWD" >> $GITHUB_ENV
+        working-directory: demo
+
+      - name: Checkout the branch from the PR that triggered the job
+        working-directory: core
+        run: gh pr checkout ${{ github.event.issue.number }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Install dependencies
+        working-directory: core
+        run: |
+          set -ex
+          # Install chinese font
+          sudo apt-get update
+          sudo apt-get install fonts-dejavu fonts-noto
+
+          # Freeze the packages to ensure consistent look and feel
+          # IPython is frozen because its version is displayed in
+          # the console header
+          pip install .[docs-screenshots]
+          bash ./scripts/ci_install.sh
+
+          # Build dev-mode
+          jlpm run build
+
+      - uses: jupyterlab/maintainer-tools/.github/actions/update-snapshots@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          server_url: http-get://localhost:8888/lab
+          test_folder: core/galata
+          start_server_script: start:doc
+          update_script: test:doc:update
+          artifact_name: updated-documentation-snapshots
+          report_name: update-documentation-report
+
+      - name: Comment back on the PR
+        run: |
+          gh api repos/${{ github.repository }}/issues/${{ github.event.issue.number }}/comments --raw-field 'body=Documentation snapshots updated.'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/galata.yml b/.github/workflows/galata.yml
new file mode 100644
index 000000000000..69b7223d8312
--- /dev/null
+++ b/.github/workflows/galata.yml
@@ -0,0 +1,201 @@
+name: UI Tests
+
+on:
+  issue_comment:
+    types: [created]
+  push:
+    branches:
+      - main
+  pull_request:
+
+env:
+  PLAYWRIGHT_BROWSERS_PATH: ${{ github.workspace }}/pw-browsers
+
+jobs:
+  test:
+    name: Visual Regression Tests
+    if: ${{ (github.event_name != 'issue_comment') || (github.event.issue.pull_request && (contains(github.event.comment.body, 'Galata snapshots updated.'))) }}
+    timeout-minutes: 80
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Set up browser cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            ${{ github.workspace }}/pw-browsers
+          key: ${{ runner.os }}-${{ hashFiles('ui-tests/yarn.lock') }}
+
+      - name: Install dependencies
+        run: |
+          bash ./scripts/ci_install.sh
+          # Build dev-mode
+          jlpm run build
+
+      - name: Launch JupyterLab
+        run: |
+          cd galata
+          jlpm start 2>&1 > /tmp/jupyterlab_server.log &
+
+      - name: Install browser
+        run: |
+          cd galata
+          # Install only Chromium browser
+          jlpm playwright install chromium
+          jlpm run build
+
+      - name: Wait for JupyterLab
+        uses: ifaxity/wait-on-action@v1
+        with:
+          resource: http-get://localhost:8888/lab
+          timeout: 360000
+
+      - name: Test
+        run: |
+          cd galata
+          jlpm run test --project galata jupyterlab
+          mv galata/test-results galata/test-jupyterlab-results || true
+          # Run once benchmark tests to ensure they have no regression
+          BENCHMARK_NUMBER_SAMPLES=1 jlpm run test:benchmark
+
+      - name: Upload Galata Test assets
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab-galata-test-assets
+          path: |
+            galata/test-jupyterlab-results
+            galata/test-results
+
+      - name: Upload Galata Test report
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab-galata-report
+          path: |
+            galata/playwright-report
+
+      - name: Print JupyterLab logs
+        if: always()
+        run: |
+          cat /tmp/jupyterlab_server.log
+
+  test-documentation:
+    name: Visual Regression Documentation
+    if: ${{ (github.event_name != 'issue_comment') || (github.event.issue.pull_request && (contains(github.event.comment.body, 'Documentation snapshots updated.'))) }}
+    # Python version is frozen through strategy.matrix.python-version
+    # Python dependencies are frozen in the installation step
+    # Note: IPython is among the frozen package
+    timeout-minutes: 80
+    runs-on: ubuntu-22.04
+    strategy:
+      matrix:
+        # Freeze Python version because it appears in console header
+        python-version: ['3.10.6']
+    steps:
+      - name: Checkout JupyterLab
+        uses: actions/checkout@v4
+        with:
+          path: core
+
+      - name: Checkout demo project
+        uses: actions/checkout@v4
+        with:
+          repository: jupyterlab/jupyterlab-demo
+          ref: master
+          path: demo
+
+      - name: Get demo folder
+        run: |
+          echo "DEMO_DIR=$PWD" >> $GITHUB_ENV
+        working-directory: demo
+
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Set up browser cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            ${{ github.workspace }}/pw-browsers
+          key: ${{ runner.os }}-${{ hashFiles('ui-tests/yarn.lock') }}
+
+      - name: Install dependencies
+        run: |
+          set -ex
+          # Install chinese font
+          sudo apt-get update
+          sudo apt-get install fonts-dejavu fonts-noto
+
+          # Freeze the packages to ensure consistent look and feel
+          # IPython is frozen because its version is displayed in
+          # the console header
+          pip install .[docs-screenshots]
+          bash ./scripts/ci_install.sh
+
+          # Build dev-mode
+          jlpm run build
+        working-directory: core
+
+      - name: Launch JupyterLab
+        env:
+          JUPYTERLAB_GALATA_ROOT_DIR: ${{ env.DEMO_DIR }}
+          # Ignore Python warning for cleaner documentation snapshots
+          PYTHONWARNINGS: ignore
+        run: |
+          set -ex
+          cd galata
+          (jupyter lab --config jupyter_server_test_config.py --extensions-in-dev-mode > /tmp/jupyterlab_server.log 2>&1) &
+        working-directory: core
+
+      - name: Install browser
+        run: |
+          set -ex
+          cd galata
+          # Install only Chromium browser
+          jlpm playwright install chromium
+          jlpm run build
+        working-directory: core
+
+      - name: Wait for JupyterLab
+        uses: ifaxity/wait-on-action@v1
+        with:
+          resource: http-get://localhost:8888/lab
+          timeout: 360000
+
+      - name: Test
+        run: |
+          cd galata
+          jlpm run test:doc
+        working-directory: core
+
+      - name: Upload Galata Test assets
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab-documentation-test-assets
+          path: |
+            core/galata/test-results
+
+      - name: Upload Galata Test report
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: jupyterlab-documentation-report
+          path: |
+            core/galata/playwright-report
+
+      - name: Stop JupyterLab
+        if: always()
+        run: |
+          kill -s SIGTERM $(pgrep jupyter-lab)
+
+      - name: Print JupyterLab logs
+        if: always()
+        run: |
+          cat /tmp/jupyterlab_server.log
diff --git a/.github/workflows/license-header.yml b/.github/workflows/license-header.yml
new file mode 100644
index 000000000000..74806f5ce6fd
--- /dev/null
+++ b/.github/workflows/license-header.yml
@@ -0,0 +1,60 @@
+name: Fix License Headers
+
+on:
+  pull_request_target:
+
+jobs:
+  header-license-fix:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+      pull-requests: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Configure git to use https
+        run: git config --global hub.protocol https
+
+      - name: Checkout the branch from the PR that triggered the job
+        run: gh pr checkout ${{ github.event.pull_request.number }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Fix License Header
+        uses: apache/skywalking-eyes/header@v0.4.0
+        with:
+          mode: fix
+
+      - name: List files changed
+        id: files-changed
+        shell: bash -l {0}
+        run: |
+          set -ex
+          export CHANGES=$(git status --porcelain | tee /tmp/modified.log | wc -l)
+          cat /tmp/modified.log
+
+          echo "N_CHANGES=${CHANGES}" >> $GITHUB_OUTPUT
+
+          git diff
+
+      - name: Commit any changes
+        if: steps.files-changed.outputs.N_CHANGES != '0'
+        shell: bash -l {0}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "github-actions[bot]@users.noreply.github.com"
+
+          git pull --no-tags
+
+          git add *
+          git commit -m "Automatic application of license header"
+
+          git config push.default upstream
+          git push
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/linuxjs-flaky-tests.yml b/.github/workflows/linuxjs-flaky-tests.yml
deleted file mode 100644
index 3d7cf12226cb..000000000000
--- a/.github/workflows/linuxjs-flaky-tests.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-name: Linux JS Flaky Tests
-
-on:
-  push:
-    branches: [3.6.x]
-  pull_request:
-    branches: [3.6.x]
-  release:
-    types: [published]
-
-jobs:
-  linuxjs:
-    name: JS
-    strategy:
-      matrix:
-        group: [js-apputils, js-services]
-      fail-fast: false
-    runs-on: ubuntu-20.04
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Base Setup
-        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
-
-      - name: Install dependencies
-        env:
-          GROUP: ${{ matrix.group }}
-        run: |
-          bash ./scripts/ci_install.sh
-
-      - name: Run test ${{ matrix.group }}
-        env:
-          GROUP: ${{ matrix.group }}
-        run: |
-          bash ./scripts/ci_script.sh
diff --git a/.github/workflows/linuxjs-tests.yml b/.github/workflows/linuxjs-tests.yml
index 20d4b9c6aba0..10a1b992ea91 100644
--- a/.github/workflows/linuxjs-tests.yml
+++ b/.github/workflows/linuxjs-tests.yml
@@ -2,9 +2,9 @@ name: Linux JS Tests
 
 on:
   push:
-    branches: [3.6.x]
+    branches: [4.0.x]
   pull_request:
-    branches: [3.6.x]
+    branches: [4.0.x]
   release:
     types: [published]
 
@@ -20,8 +20,9 @@ jobs:
         group:
           [
             js-application,
-            js-cells,
+            js-apputils,
             js-cell-toolbar,
+            js-cells,
             js-codeeditor,
             js-codemirror,
             js-completer,
@@ -37,28 +38,33 @@ jobs:
             js-imageviewer,
             js-inspector,
             js-logconsole,
+            js-lsp,
             js-mainmenu,
+            js-metadataform,
+            js-metapackage,
             js-nbformat,
             js-notebook,
             js-observables,
             js-outputarea,
             js-rendermime,
+            js-services,
+            js-settingeditor,
             js-settingregistry,
             js-statedb,
             js-statusbar,
+            js-testing,
             js-terminal,
             js-toc,
             js-translation,
             js-ui-components,
             js-vega5-extension,
-            js-testutils,
           ]
       fail-fast: false
-    runs-on: ubuntu-20.04
-    timeout-minutes: 20
+    runs-on: ubuntu-22.04
+    timeout-minutes: 40
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
diff --git a/.github/workflows/linuxtests.yml b/.github/workflows/linuxtests.yml
index 07fcc0b325cb..ac55d70fea84 100644
--- a/.github/workflows/linuxtests.yml
+++ b/.github/workflows/linuxtests.yml
@@ -2,9 +2,9 @@ name: Linux Tests
 
 on:
   push:
-    branches: [3.6.x]
+    branches: [4.0.x]
   pull_request:
-    branches: [3.6.x]
+    branches: [4.0.x]
   release:
     types: [published]
 
@@ -13,59 +13,43 @@ jobs:
     name: Linux
     strategy:
       matrix:
-        group:
-          [
-            integrity,
-            integrity2,
-            integrity3,
-            release_test,
-            docs,
-            usage,
-            usage2,
-            splice_source,
-            python,
-            examples,
-            interop,
-            nonode,
-            linkcheck,
-            lint,
-          ]
+        group: [integrity, integrity2, integrity3, release_test, docs, usage, usage2, splice_source, python, examples, interop, nonode, lint]
         # This will be used by the base setup action
-        python-version: ['3.7', '3.10']
+        python-version: ["3.8", "3.11"]
         include:
+          - group: examples
+            upload-output: true
           - group: release_test
             upload-output: true
         exclude:
           - group: integrity
-            python-version: '3.7'
+            python-version: "3.8"
           - group: integrity2
-            python-version: '3.7'
+            python-version: "3.8"
           - group: integrity3
-            python-version: '3.7'
+            python-version: "3.8"
           - group: release_test
-            python-version: '3.7'
+            python-version: "3.8"
           - group: docs
-            python-version: '3.7'
+            python-version: "3.8"
           - group: usage
-            python-version: '3.7'
+            python-version: "3.8"
           - group: usage2
-            python-version: '3.7'
-          - group: linkcheck
-            python-version: '3.7'
+            python-version: "3.8"
           - group: nonode
-            python-version: '3.7'
+            python-version: "3.8"
           - group: lint
-            python-version: '3.7'
+            python-version: "3.8"
           - group: examples
-            python-version: '3.7'
+            python-version: "3.8"
           - group: splice_source
-            python-version: '3.7'
+            python-version: "3.8"
       fail-fast: false
     timeout-minutes: 45
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
@@ -88,17 +72,37 @@ jobs:
 
       - name: Upload ${{ matrix.group }} results
         if: ${{ matrix.upload-output && always() }}
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: ${{ matrix.group }} ${{ github.run_number }}
-          path: ./build/${{ matrix.group }}_output
+          path: |
+            ./build/${{ matrix.group }}_output
+            ./examples/*/test-results
+
+  test_minimum_versions:
+    name: Test Minimum Versions
+    timeout-minutes: 30
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Base Setup
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+        with:
+          python_version: "3.8"
+      - name: Install minimum versions
+        uses: jupyterlab/maintainer-tools/.github/actions/install-minimums@v1
+      - name: Install dependencies
+        run: |
+          bash ./scripts/ci_install.sh
+      - name: Run the unit tests
+        run: pytest -vv || pytest -vv --lf
 
   make_sdist:
     name: Make SDist
     runs-on: ubuntu-latest
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - name: Install dependencies
@@ -108,7 +112,7 @@ jobs:
         run: |
           pip install build
           python -m build --sdist
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v3
         with:
           name: "sdist"
           path: dist/*.tar.gz
@@ -122,7 +126,7 @@ jobs:
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
       - name: Download sdist
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v3
       - name: Install From SDist
         run: |
           set -ex
@@ -130,7 +134,7 @@ jobs:
           mkdir test
           tar --strip-components=1 -zxvf *.tar.gz -C ./test
           cd test
-          pip install -e .[test]
+          pip install -e .[dev,test]
           pip install pytest-github-actions-annotate-failures
       - name: Run Test
         run: |
@@ -139,11 +143,15 @@ jobs:
 
   check_links:
     runs-on: ubuntu-latest
-    timeout-minutes: 15
+    timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+      - run: |
+          node ./jupyterlab/staging/yarn.js install
+          node ./jupyterlab/staging/yarn.js run build:packages
+          node ./jupyterlab/staging/yarn.js run docs
       - uses: jupyterlab/maintainer-tools/.github/actions/check-links@v1
         with:
-          ignore_glob: "packages/ui-components/docs/source/ui_components.rst images"
-          ignore_links: "../api/*.* .*/images/[\\w-]+.png https://docs.github.com/en/.* https://blog.jupyter.org/jupyterlab-is-ready-for-users-5a6f039b8906 https://jupyterlab.github.io https://registry.npmjs.org/.* https://mybinder.org/v2/gh/jupyterlab/.*"
+          ignore_glob: "docs/api packages/ui-components/docs/source/ui_components.rst images"
+          ignore_links: ".*/images/[\\w-]+.png https://docs.github.com/en/.* https://jupyterlab.github.io https://mybinder.org/v2/gh/jupyterlab/.*"
diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
new file mode 100644
index 000000000000..e84180046f75
--- /dev/null
+++ b/.github/workflows/lock.yml
@@ -0,0 +1,23 @@
+name: 'Lock Closed Threads'
+
+on:
+  schedule:
+    - cron: '0 0 * * *'
+
+permissions:
+  issues:
+    write
+  pull-requests:
+    write
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v4
+        with:
+          github-token: ${{ github.token }}
+          issue-lock-inactive-days: '180'
+          issue-lock-labels: 'status:resolved-locked'
+          pr-lock-inactive-days: '180'
+          pr-lock-labels: 'status:resolved-locked'
diff --git a/.github/workflows/macostests.yml b/.github/workflows/macostests.yml
index e76349b8bb27..c7e060644ed2 100644
--- a/.github/workflows/macostests.yml
+++ b/.github/workflows/macostests.yml
@@ -2,9 +2,9 @@ name: macOS Tests
 
 on:
   push:
-    branches: [3.6.x]
+    branches: [4.0.x]
   pull_request:
-    branches: [3.6.x]
+    branches: [4.0.x]
   release:
     types: [published]
 
@@ -14,13 +14,13 @@ jobs:
     strategy:
       matrix:
         group: [integrity, python, usage, usage2]
-        python: [3.8]
+        python-version: [3.11]
       fail-fast: false
     timeout-minutes: 45
     runs-on: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
diff --git a/.github/workflows/prep-release.yml b/.github/workflows/prep-release.yml
new file mode 100644
index 000000000000..7a2a18de7570
--- /dev/null
+++ b/.github/workflows/prep-release.yml
@@ -0,0 +1,42 @@
+name: "Step 1: Prep Release"
+on:
+  workflow_dispatch:
+    inputs:
+      version_spec:
+        description: "New Version Specifier"
+        default: "next"
+        required: false
+      branch:
+        description: "The branch to target"
+        required: false
+      post_version_spec:
+        description: "Post Version Specifier"
+        required: false
+      since:
+        description: "Use PRs with activity since this date or git reference"
+        required: false
+      since_last_stable:
+        description: "Use PRs with activity since the last stable git tag"
+        required: false
+        type: boolean
+jobs:
+  prep_release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Prep Release
+        id: prep-release
+        uses: jupyter-server/jupyter_releaser/.github/actions/prep-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          version_spec: ${{ github.event.inputs.version_spec }}
+          post_version_spec: ${{ github.event.inputs.post_version_spec }}
+          target: ${{ github.event.inputs.target }}
+          branch: ${{ github.event.inputs.branch }}
+          since: ${{ github.event.inputs.since }}
+          since_last_stable: ${{ github.event.inputs.since_last_stable }}
+
+      - name: "** Next Step **"
+        run: |
+          echo "Optional): Review Draft Release: ${{ steps.prep-release.outputs.release_url }}"
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
new file mode 100644
index 000000000000..dbaaeaad243b
--- /dev/null
+++ b/.github/workflows/publish-release.yml
@@ -0,0 +1,54 @@
+name: "Step 2: Publish Release"
+on:
+  workflow_dispatch:
+    inputs:
+      branch:
+        description: "The target branch"
+        required: false
+      release_url:
+        description: "The URL of the draft GitHub release"
+        required: false
+      steps_to_skip:
+        description: "Comma separated list of steps to skip"
+        required: false
+
+jobs:
+  publish_release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+
+      - name: Populate Release
+        id: populate-release
+        uses: jupyter-server/jupyter_releaser/.github/actions/populate-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          target: ${{ github.event.inputs.target }}
+          branch: ${{ github.event.inputs.branch }}
+          release_url: ${{ github.event.inputs.release_url }}
+          steps_to_skip: ${{ github.event.inputs.steps_to_skip }}
+
+      - name: Finalize Release
+        id: finalize-release
+        env:
+          PYPI_TOKEN: ${{ secrets.PYPI_TOKEN }}
+          PYPI_TOKEN_MAP: ${{ secrets.PYPI_TOKEN_MAP }}
+          TWINE_USERNAME: __token__
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        uses: jupyter-server/jupyter-releaser/.github/actions/finalize-release@v2
+        with:
+          token: ${{ secrets.ADMIN_GITHUB_TOKEN }}
+          target: ${{ github.event.inputs.target }}
+          release_url: ${{ steps.populate-release.outputs.release_url }}
+
+      - name: "** Next Step **"
+        if: ${{ success() }}
+        run: |
+          echo "Verify the final release"
+          echo ${{ steps.finalize-release.outputs.release_url }}
+
+      - name: "** Failure Message **"
+        if: ${{ failure() }}
+        run: |
+          echo "Failed to Publish the Draft Release Url:"
+          echo ${{ steps.populate-release.outputs.release_url }}
diff --git a/.github/workflows/reject-staging-changes.yml b/.github/workflows/reject-staging-changes.yml
new file mode 100644
index 000000000000..1449cc6d73c7
--- /dev/null
+++ b/.github/workflows/reject-staging-changes.yml
@@ -0,0 +1,30 @@
+# This workflow fails in PRs with changes to the jupyterlab/staging directory
+# Won't start unless there is a modification in the staging directory
+
+name: 'Reject changes to staging'
+on:
+  pull_request:
+    paths:
+      - 'jupyterlab/staging/**'
+
+jobs:
+  staging-check:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Get modified files in the staging directory
+        id: modified-files-in-staging
+        uses: tj-actions/changed-files@v36.0.11
+        with:
+          # only checks for modified files in this directory
+          files: jupyterlab/staging
+          # ignores modifications to these files
+          files_ignore: |
+            jupyterlab/staging/yarn.js
+            jupyterlab/staging/.yarnrc
+
+      - name: Fail if files in staging are modified
+        if: steps.modified-files-in-staging.outputs.any_changed == 'true'
+        run: exit 1
diff --git a/.github/workflows/windowstests.yml b/.github/workflows/windowstests.yml
index a88a4c544d29..26e7cae145eb 100644
--- a/.github/workflows/windowstests.yml
+++ b/.github/workflows/windowstests.yml
@@ -2,9 +2,9 @@ name: Windows Tests
 
 on:
   push:
-    branches: [3.6.x]
+    branches: [4.0.x]
   pull_request:
-    branches: [3.6.x]
+    branches: [4.0.x]
   release:
     types: [published]
 
@@ -19,7 +19,7 @@ jobs:
     timeout-minutes: 40
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Base Setup
         uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
diff --git a/.gitignore b/.gitignore
index 8e1f151323c3..d12c3f89ffbc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 # project files
 coverage/
+.eslintcache
+.stylelintcache
 
 dev_mode/listings
 dev_mode/schemas
@@ -9,7 +11,10 @@ dev_mode/workspaces
 dev_mode/stats.json
 
 docs/_build
-docs/api
+docs/source/user/commands_list.md
+docs/source/extension/plugins_list.rst
+docs/source/extension/tokens_list.rst
+docs/source/api
 **/docs/source/_build
 
 examples/app/build
@@ -20,6 +25,7 @@ examples/federated/labextensions
 
 junit.xml
 
+jupyterlab/galata/@jupyterlab
 jupyterlab/geckodriver
 jupyterlab/static
 jupyterlab/schemas
@@ -33,6 +39,7 @@ ui-tests/test-output
 # Remove after next release
 jupyterlab/imports.css
 
+packages/codemirror/test/foo*.js
 packages/nbconvert-css/style/
 packages/services/examples/node/config.json
 packages/services/examples/browser/tmp
@@ -56,7 +63,6 @@ node_modules
 *.tsbuildinfo
 lerna-debug.log
 yarn-error.log
-storybook-static
 
 # python
 .cache
@@ -68,6 +74,7 @@ __pycache__
 pip-wheel-metadata
 Pipfile
 Pipfile.lock
+venv/
 
 # xeus-python debug logs
 xpython_debug_logs
@@ -107,8 +114,10 @@ lerna-debug.log
 yarn-error.log
 
 # yarn >=2.x local files
-.yarn
+.yarn/*
 .pnp.*
+jupyterlab/staging/.yarn/*
+jupyterlab/staging/.pnp.*
 
 # copied changelog file
 docs/source/getting_started/changelog.md
@@ -124,9 +133,14 @@ junit.xml
 # ms IDE stuff
 *.code-workspace
 .history
-.vscode
-.vs
 .vscode/*
 !.vscode/extension.json
 
 .jupyter_releaser_checkout
+
+# generated LSP interfaces
+packages/lsp/src/_*
+
+# generated reports
+webpack-bundle-analyzer.html
+examples/**/test-results/
diff --git a/.gitpod.yml b/.gitpod.yml
index 4970d867b928..1a80e4ac462e 100644
--- a/.gitpod.yml
+++ b/.gitpod.yml
@@ -1,33 +1,59 @@
 github:
   prebuilds:
-    # enable for the master/default branch (defaults to true)
     master: true
-    # enable for all branches in this repo (defaults to false)
     branches: true
-    # enable for pull requests coming from this repo (defaults to true)
     pullRequests: true
-    # enable for pull requests coming from forks (defaults to false)
     pullRequestsFromForks: true
-    # add a check to pull requests (defaults to true)
     addCheck: false
-    # add a "Review in Gitpod" button as a comment to pull requests (defaults to false)
     addComment: false
-    # add a "Review in Gitpod" button to the pull request's description (defaults to false)
     addBadge: false
-    # add a label once the prebuild is ready to pull requests (defaults to false)
     addLabel: false
 tasks:
-  - init: pip3 install -e . && yarn install && yarn run build
-    # for some reason,have to re-install on start, or else it doesn't find the python package
-    # Set no token and allow any origin, so that you can open it in a new tab
-    # Disable iframe security so can load in the editor as well
-    command: >
-      pip3 install -e . &&
-      jupyter lab
-      --dev-mode
-      --watch
-      --LabApp.token=''
-      --LabApp.allow_origin=*
-      --LabApp.tornado_settings='{"headers": {"Content-Security-Policy": "frame-ancestors *"}}'
+  - name: setup
+    init: |
+      pushd /workspace
+      wget -qO- https://micro.mamba.pm/api/micromamba/linux-64/latest | tar -xvj bin/micromamba
+      popd
+      # bootstrap activation commands for other tasks to reuse
+      cat <<EOT > /workspace/bin/activate-env.sh
+      export MAMBA_ROOT_PREFIX=/workspace/.micromamba
+      export MAMBA_EXE=/workspace/bin/micromamba
+      $(/workspace/bin/micromamba shell hook --shell=bash)
+      export JUPYTER_PREFER_ENV_PATH=1
+      micromamba activate
+      EOT
+      source /workspace/bin/activate-env.sh
+      micromamba config append channels conda-forge
+      micromamba install -n base -y python=3.10 nodejs=18 yarn
+      source /workspace/bin/activate-env.sh
+      python -m pip install -e ".[dev,docs,test]" && jlpm install && jlpm run build
+      gp sync-done setup
+    command: |
+      gp sync-done setup
+      source /workspace/bin/activate-env.sh
+      # Set no token and allow any origin, so that you can open it in a new tab
+      # Disable iframe security so can load in the editor as well
+      jupyter lab --dev-mode --watch --extensions-in-dev-mode --ServerApp.IdentityProvider.token='' --ServerApp.allow_origin=* --ServerApp.tornado_settings='{"headers": {"Content-Security-Policy": "frame-ancestors *"}}'
+
+  - name: auto-activate
+    command: |
+      gp sync-await setup
+      echo "source /workspace/bin/activate-env.sh" >> ~/.bashrc
+      source /workspace/bin/activate-env.sh
+
+  - name: documentation
+    command: |
+      gp sync-await setup
+      source /workspace/bin/activate-env.sh
+      cd docs
+      make html
+      cd build/html
+      python -m http.server 8000
+
 ports:
   - port: 8888
+  - port: 8000
+
+vscode:
+  extensions:
+    - esbenp.prettier-vscode
diff --git a/.licenserc.yaml b/.licenserc.yaml
index fce386c82496..1d4c9c8a1712 100644
--- a/.licenserc.yaml
+++ b/.licenserc.yaml
@@ -32,6 +32,7 @@ header:
     - 'dev_mode/style.js'
     - 'examples/federated/example.cert'
     - 'galata/test/jupyterlab/notebooks/'
+    - 'jupyterlab.desktop'
     - 'jupyterlab/staging'
     - 'packages/codemirror/test/foo.grammar'
     - 'packages/extensionmanager-extension/examples/listings/settings/@jupyterlab/extensionmanager-extension/plugin.jupyterlab-settings'
diff --git a/.meeseeksdev.yml b/.meeseeksdev.yml
index 165a153db576..96e0541a5a90 100644
--- a/.meeseeksdev.yml
+++ b/.meeseeksdev.yml
@@ -1,6 +1,6 @@
 special:
   everyone:
-    can: 
+    can:
       - say
       - tag
-      - untag
\ No newline at end of file
+      - untag
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1a58e4716c59..7edcc55f2f49 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,31 +1,46 @@
 ci:
+  # Same schedule interval as dependabot see .github/dependabot.yml
+  autoupdate_schedule: monthly
   # skip any check that needs internet access
-  skip: [check-jsonschema, prettier, eslint, integrity]
+  skip: [prettier, eslint, stylelint]
+
+default_language_version:
+  node: system
 
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.2.0
+    rev: v4.4.0
     hooks:
       - id: forbid-new-submodules
+      - id: end-of-file-fixer
+        exclude: galata/.*-snapshots
       - id: check-case-conflict
+      - id: check-executables-have-shebangs
       - id: requirements-txt-fixer
       - id: check-added-large-files
       - id: check-case-conflict
+      - id: check-toml
+      - id: check-yaml
       - id: debug-statements
+      - id: check-builtin-literals
+      - id: trailing-whitespace
+        exclude: (.bumpversion.cfg|yarn.js)
+
+  - repo: https://github.com/python-jsonschema/check-jsonschema
+    rev: 0.27.0
+    hooks:
+      - id: check-github-workflows
 
-  - repo: https://github.com/executablebooks/mdformat
-    rev: 0.7.16
+  - repo: https://github.com/psf/black
+    rev: 23.9.1
     hooks:
-      - id: mdformat
+      - id: black
 
-  - repo: https://github.com/sirosen/check-jsonschema
-    rev: 0.14.2
+  - repo: https://github.com/charliermarsh/ruff-pre-commit
+    rev: v0.0.292
     hooks:
-      - id: check-jsonschema
-        name: 'Check GitHub Workflows'
-        files: ^\.github/workflows/
-        types: [yaml]
-        args: ['--schemafile', 'https://json.schemastore.org/github-workflow']
+      - id: ruff
+        args: ["--fix"]
 
   - repo: local
     hooks:
@@ -39,6 +54,11 @@ repos:
         entry: 'npm run eslint:files'
         language: node
         types_or: [ts, tsx, javascript, jsx]
+      - id: stylelint
+        name: stylelint
+        entry: 'npm run stylelint:files'
+        language: node
+        types: [css]
       - id: integrity
         name: integrity
         entry: 'npm run integrity --force'
diff --git a/.prettierignore b/.prettierignore
index 2b6ab9f9f839..5da1f9596629 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -1,10 +1,12 @@
 **/build
 **/node_modules
 **/lib
+**/dist
 **/package.json
 **/static
 **/.ipynb_checkpoints
-tests/**/coverage
+**/coverage
+CHANGELOG.md
 
 .eggs
 dev_mode/index.js
@@ -13,23 +15,27 @@ dev_mode/static
 dev_mode/themes
 dev_mode/workspaces
 docs/_build
+docs/build
 docs/api
 examples/app/build
 examples/app/themes
 examples/app/schemas
 examples/federated/core_package/index.template.js
+examples/federated/core_package/index.js
+examples/federated/labextensions
+galata/playwright-report
+jupyterlab/galata
 jupyterlab/schemas
 jupyterlab/themes
 jupyterlab/geckodriver
 jupyterlab/staging/yarn.js
+jupyterlab/staging/yarn.lock
 jupyterlab/staging/index.js
+jupyterlab/staging/webpack.config.js
 packages/ui-components/src/icon/iconimports.ts
-packages/extensionmanager/examples/listings
 tsconfigdoc.json
-galata/playwright-report
-examples/federated/core_package/index.js
-examples/federated/labextensions
-CHANGELOG.md
+typedoc-theme
+yarn.lock
 
 # jetbrains IDE stuff
 .idea/
@@ -40,3 +46,15 @@ CHANGELOG.md
 
 # autogenerated from a lot of css in jlab
 packages/nbconvert-css/style/index.css
+
+# autogenerated files for documentation
+docs/source/user/commands_list.md
+docs/source/extensions/plugins_list.rst
+docs/source/extensions/tokens_list.rst
+galata/test/documentation/*/*.json
+
+# generated LSP interfaces
+packages/lsp/src/_
+
+# generated by reports
+stats.json
diff --git a/.prettierrc b/.prettierrc
index 1950328e59aa..b0a179d48cb8 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -2,4 +2,4 @@
   "singleQuote": true,
   "trailingComma": "none",
   "arrowParens": "avoid"
-}
\ No newline at end of file
+}
diff --git a/.readthedocs.yml b/.readthedocs.yml
index dd28db48a1c7..f21eb589a28f 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,11 +1,17 @@
 version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.10"
+    nodejs: "18"
+
 sphinx:
   configuration: docs/source/conf.py
-conda:
-  environment: docs/environment.yml
+
 python:
-  version: 3.7
   install:
-    # install jupyterlab itself
     - method: pip
       path: .
+      extra_requirements:
+        - docs
diff --git a/.stylelintignore b/.stylelintignore
new file mode 100644
index 000000000000..7f5ba552b538
--- /dev/null
+++ b/.stylelintignore
@@ -0,0 +1,5 @@
+packages/nbconvert-css/style/index.css
+
+docs/_build
+docs/build
+docs/api
diff --git a/.stylelintrc.yaml b/.stylelintrc.yaml
new file mode 100644
index 000000000000..5d14b3f44e41
--- /dev/null
+++ b/.stylelintrc.yaml
@@ -0,0 +1,47 @@
+$schema: https://raw.githubusercontent.com/SchemaStore/schemastore/master/src/schemas/json/stylelintrc.json
+
+extends:
+  - stylelint-config-recommended
+  - stylelint-config-standard
+  - stylelint-prettier/recommended
+
+plugins:
+  - stylelint-csstree-validator
+
+rules:
+  import-notation: null
+  # TODO: fix all of these rules violated in stylelint-config-recommended
+  no-descending-specificity: null
+  # this fixer is incompatible with the copyright headers
+  comment-whitespace-inside: null
+  # these fixers assume use of `autoprefixer`: we _don't_ use any CSS preprocessors
+  property-no-vendor-prefix: null
+  selector-no-vendor-prefix: null
+  value-no-vendor-prefix: null
+  # these fixers doesn't work well with variables
+  alpha-value-notation: null
+  color-function-notation: null
+  # TODO: evaluate these unfixable rules violated in stylelint-config-standard
+  custom-property-pattern: null
+  declaration-block-no-redundant-longhand-properties: null
+  function-linear-gradient-no-nonstandard-direction: null
+  function-url-quotes: null
+  keyframes-name-pattern: null
+  number-max-precision: null
+  selector-class-pattern: null
+  selector-id-pattern: null
+  selector-pseudo-class-no-unknown: null
+  selector-pseudo-element-no-unknown: null
+  selector-not-notation: null
+  # disallow use of more than one bare HTML tag like `div span` to avoid performance regression,
+  # while allowing compounded HTML tags like `button.jp-Button`
+  selector-max-type:
+    - 1
+    - ignore: "compounded"
+  # matching complex selectors is expensive
+  selector-max-class: 4
+  # TODO: decrease max-compound to 3
+  selector-max-compound-selectors: 4
+  # TODO: decrease to 0
+  selector-max-universal: 1
+  csstree/validator: true
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 000000000000..ba866a081812
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+      "esbenp.prettier-vscode",
+    ],
+}
diff --git a/.yarnrc b/.yarnrc
deleted file mode 100644
index 9751ca9a39b6..000000000000
--- a/.yarnrc
+++ /dev/null
@@ -1,2 +0,0 @@
-yarn-path "./jupyterlab/staging/yarn.js"
-ignore-optional true
diff --git a/.yarnrc.yml b/.yarnrc.yml
new file mode 100644
index 000000000000..d1027ee74005
--- /dev/null
+++ b/.yarnrc.yml
@@ -0,0 +1,25 @@
+enableImmutableInstalls: false
+
+enableInlineBuilds: false
+
+enableTelemetry: false
+
+httpTimeout: 60000
+
+logFilters:
+  - code: YN0006
+    level: discard
+  - code: YN0007
+    level: discard
+  - code: YN0008
+    level: discard
+  - code: YN0013
+    level: discard
+  - code: YN0019
+    level: discard
+
+nodeLinker: node-modules
+
+npmRegistryServer: "https://registry.yarnpkg.com"
+
+yarnPath: ./jupyterlab/staging/yarn.js
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27ef937109e3..369384dc5fe8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,120 +4,1334 @@
 
 # JupyterLab Changelog
 
-## v3.6
+## v4.0
+
+### 4.0.0 - Highlights
+
+Below are the major highlights in JupyterLab 4.0.0.
+
+#### New text editor
+
+CodeMirror, the text editor used for cells and file editors, has been updated to [CodeMirror 6](https://codemirror.net/). This brings important
+accessibility and performance improvements as well as better customization capabilities.
+We have also improved the editor settings. Previously, users had to customize settings separately for each type of cell, the file editor, and the console editor. Now, you can change your settings in one place. It is now easier to use the default settings for all editors and to change some settings for specific cases. For example, you can now hide line numbers only for markdown cells.
+
+Developers can now provide editor extensions, like themes and programming language parsers, through new application registries.
+
+#### New extension manager
+
+Starting with JupyterLab 3, extensions can be installed via Python packages
+(or other providers of [prebuilt extensions](https://jupyterlab.readthedocs.io/en/stable/extension/extension_dev.html#prebuilt-extensions)).
+
+In JupyterLab 4, building on this feature, the Extension Manager now includes extensions from [pypi.org](https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab).
+This removes the build step from installation of extension when using Extension Manager.
+
+Developers can provide an alternative package repository to display their own set of extensions.
+
+#### Improved document search
+
+The Search and Replace functionality has been improved with new features when searching in a notebook:
+
+- Highlight matches in rendered markdown cells
+- Search in selection
+- Multi-line search
+- Replace using regex capture-group references
+- Replace while preserving case
+
+#### UI improvements
+
+Some new elements have been added or changed in the UI:
+
+- Rework the running kernels section
+- "Add a new cell" button at the bottom of a notebook
+- Dialog to display keyboard shortcuts as in the Classic Notebook (use <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>H</kbd>)
+- Display the first line of cell input and outputs when they are collapsed
+
+#### Accessibility improvements
+
+JupyterLab is not yet fully accessible. Currently, we are focused on making Notebook 7 accessible.
+A big part of the code is shared, though, and the following accessibility improvements are in JupyterLab 4:
+
+- Improved focus and keyboard navigation in the file browser
+- More ARIA roles and labels were added to UI elements
+- Main menu collapses to a hamburger menu if there is not enough space to display all items.
+
+#### Performance enhancements
+
+JupyterLab is now faster, thanks to the following improvements:
+
+- CSS rules optimization: CSS selectors have been optimized to improve web browser performance when many elements are present on a page.
+- Upgrade to CodeMirror 6: Especially for notebooks with many cells, the new CodeMirror version is far more efficient than the previous version. Large notebooks should load more quickly.
+- Upgrade to MathJax 3: The mathematical equations renderer library has been been upgraded from v2 to v3 allowing faster rendering.
+- Notebook windowing: By rendering only the parts of a notebook that fit in the web browser viewport, JupyterLab is much more efficient. See an important note below.
+
+Notebook windowing _might_ add side effects for example if some cell outputs are displaying [iframes](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe). Therefore it is not yet the default value. But we recommend user to switch to it and report bugs to help us polish it. To test it, you
+need to set the user setting _Notebook_ > _Windowing mode_ to `full`.  If you have issues with notebook rendering, try changing back to `defer` or `none`. (`none` should be used as a last resort, because it disables all optimizations.)
+
+#### Real Time Collaboration
+
+JupyterLab 3.6 already made significant improvements to the Real Time Collaboration (RTC) feature.
+The feature is now in a separate repository: [jupyter_collaboration](https://github.com/jupyterlab/jupyter_collaboration).
+The rationale is to limit the dependencies for users who don't need RTC. Separating RTC also helps organizations using JupyterLab that do not meet the specific requirements regarding file content management.
+
+To enable RTC, install the `jupyter-collaboration` package with either `pip` or `conda`.
+
+- with pip: `pip install "jupyter-collaboration>=1.0.0a0"`
+- with conda: _not yet available_
+
+RTC highlights in the standalone `jupyter-collboration` package, version 1.0.0, include:
+
+- Support for displaying multiple cursors and selections
+- Support for registration of new shared model types
+
+#### For developers
+
+Here are the main tool updates that will benefit extension authors and developers:
+
+- TypeScript v5
+- Yarn v3
+- React v18
+- Lumino v2
+
+We recommend using Node.js v18 or newer, because older versions will reach end of life in 2023 or earlier (see [Node release schedule](https://github.com/nodejs/release#release-schedule)).
+
+To ease code migration to JupyterLab 4, developers should review the [migration guide](https://jupyterlab.readthedocs.io/en/stable/extension/extension_migration.html). A few existing extensions have already been migrated and can be used as examples:
+- the [JupyterLab Extensions by Examples](https://github.com/jupyterlab/extension-examples/pull/232)
+- the [Jupyter MIME type renderers](https://github.com/jupyterlab/jupyter-renderers/pull/296)
 
 <!-- <START NEW CHANGELOG ENTRY> -->
 
-## 3.6.6
+## 4.0.8
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.7...86078b863e794fe26154576118dae972f071ea2f))
+
+### Enhancements made
+
+- Expand search box horizontally when text grows long [#15266](https://github.com/jupyterlab/jupyterlab/pull/15266) ([@sinistersnare](https://github.com/sinistersnare))
+
+### Bugs fixed
+
+- Add min width to constrain resizing in side-by-side view [#14529](https://github.com/jupyterlab/jupyterlab/pull/14529) ([@dharmaquark](https://github.com/dharmaquark))
+- Fix collapsed cells styling [#15322](https://github.com/jupyterlab/jupyterlab/pull/15322) ([@fcollonval](https://github.com/fcollonval))
+- Fix autobrackets and other default CM extension [#15297](https://github.com/jupyterlab/jupyterlab/pull/15297) ([@fcollonval](https://github.com/fcollonval))
+- Fix rulers position with gutter width [#15296](https://github.com/jupyterlab/jupyterlab/pull/15296) ([@fcollonval](https://github.com/fcollonval))
+- Declare Webpack loaders with `require.resolve()` [#15299](https://github.com/jupyterlab/jupyterlab/pull/15299) ([@tibdex](https://github.com/tibdex))
+
+### Maintenance and upkeep improvements
+
+- Backport ruff/black/pre-commit updates to align versions [#15345](https://github.com/jupyterlab/jupyterlab/pull/15345) ([@krassowski](https://github.com/krassowski))
+- Turn off navigation with keys [#15310](https://github.com/jupyterlab/jupyterlab/pull/15310) ([@fcollonval](https://github.com/fcollonval))
+- Update benchmark reporter snapshots [#15279](https://github.com/jupyterlab/jupyterlab/pull/15279) ([@krassowski](https://github.com/krassowski))
+- Update canvas to a version with prebuilds for nodeJS 20 [#15270](https://github.com/jupyterlab/jupyterlab/pull/15270) ([@fcollonval](https://github.com/fcollonval))
+- Commit JS and Python packages in one commit on release [#15042](https://github.com/jupyterlab/jupyterlab/pull/15042) ([@jtpio](https://github.com/jtpio))
+
+### Documentation improvements
+
+- Expand search box horizontally when text grows long [#15266](https://github.com/jupyterlab/jupyterlab/pull/15266) ([@sinistersnare](https://github.com/sinistersnare))
+- Turn off navigation with keys [#15310](https://github.com/jupyterlab/jupyterlab/pull/15310) ([@fcollonval](https://github.com/fcollonval))
+- Fixed home page link to sibling project. [#15256](https://github.com/jupyterlab/jupyterlab/pull/15256) ([@ericsnekbytes](https://github.com/ericsnekbytes))
+- Commit JS and Python packages in one commit on release [#15042](https://github.com/jupyterlab/jupyterlab/pull/15042) ([@jtpio](https://github.com/jtpio))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-10-11&to=2023-11-02&type=c))
+
+[@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-10-11..2023-11-02&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2023-10-11..2023-11-02&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-10-11..2023-11-02&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-10-11..2023-11-02&type=Issues) | [@j264415](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aj264415+updated%3A2023-10-11..2023-11-02&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-10-11..2023-11-02&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-10-11..2023-11-02&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-10-11..2023-11-02&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-10-11..2023-11-02&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-10-11..2023-11-02&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-10-11..2023-11-02&type=Issues)
+
+<!-- <END NEW CHANGELOG ENTRY> -->
 
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.5...b86cc202967e8231560f5d67f3daa747a7d3ad79))
+## 4.0.7
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.6...277bd0b0dbf28688149ed2bc62830b7d67e6ad21))
+
+### Enhancements made
+
+- Add the standard SQL mimetype [#15180](https://github.com/jupyterlab/jupyterlab/pull/15180) ([@brichet](https://github.com/brichet))
+
+### Bugs fixed
+
+- Restore horizontal scrolling of outputs for Firefox [#15171](https://github.com/jupyterlab/jupyterlab/pull/15171) ([@fcollonval](https://github.com/fcollonval))
+- Fix text wrapping in the search box [#15080](https://github.com/jupyterlab/jupyterlab/pull/15080) ([@eliaslma](https://github.com/eliaslma))
+- Fix completer documentation panel hiding and animation [#15238](https://github.com/jupyterlab/jupyterlab/pull/15238) ([@krassowski](https://github.com/krassowski))
+- Fix clicking in the TOC does not scroll [#15184](https://github.com/jupyterlab/jupyterlab/pull/15184) ([@parmentelat](https://github.com/parmentelat))
+- Hide completer when changing notebook tabs [#14534](https://github.com/jupyterlab/jupyterlab/pull/14534) ([@nishikantparmariam](https://github.com/nishikantparmariam))
+- Backport of MathJax double init/font URL fix and binder/log updates [#15231](https://github.com/jupyterlab/jupyterlab/pull/15231) ([@bollwyvl](https://github.com/bollwyvl))
+- Restore syntax highlighting for mimetypes with more than one identifier [#15175](https://github.com/jupyterlab/jupyterlab/pull/15175) ([@jans-code](https://github.com/jans-code))
+- Fix completer width inflation and jitter [#15132](https://github.com/jupyterlab/jupyterlab/pull/15132) ([@krassowski](https://github.com/krassowski))
+- Fix Show Keyboard Shortcuts command [#15170](https://github.com/jupyterlab/jupyterlab/pull/15170) ([@jtpio](https://github.com/jtpio))
+- Blur footer for any key that triggers a 'select above', not just ArrowUp [#14796](https://github.com/jupyterlab/jupyterlab/pull/14796) ([@smacke](https://github.com/smacke))
+- Fix background-color in `<select>` elements in dark theme [#15098](https://github.com/jupyterlab/jupyterlab/pull/15098) ([@Rmarieta](https://github.com/Rmarieta))
+- Fix selection in active line [#15129](https://github.com/jupyterlab/jupyterlab/pull/15129) ([@krassowski](https://github.com/krassowski))
+- Remove `unusedDocuments`, fix culling of foreign documents [#15105](https://github.com/jupyterlab/jupyterlab/pull/15105) ([@krassowski](https://github.com/krassowski))
+
+### Maintenance and upkeep improvements
+
+- Fix completer tests after transition to pointer events [#15237](https://github.com/jupyterlab/jupyterlab/pull/15237) ([@krassowski](https://github.com/krassowski))
+- Bump postcss from 8.4.25 to 8.4.31 [#15218](https://github.com/jupyterlab/jupyterlab/pull/15218) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Switch from hub to gh CLI [#15213](https://github.com/jupyterlab/jupyterlab/pull/15213) ([@fcollonval](https://github.com/fcollonval))
+- Restore removed API [#15204](https://github.com/jupyterlab/jupyterlab/pull/15204) ([@fcollonval](https://github.com/fcollonval))
+- Bump actions/checkout from 3 to 4 [#15189](https://github.com/jupyterlab/jupyterlab/pull/15189) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Bump iterative/setup-cml from 1 to 2 [#15186](https://github.com/jupyterlab/jupyterlab/pull/15186) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Add a valid email in update extension [#15133](https://github.com/jupyterlab/jupyterlab/pull/15133) ([@brichet](https://github.com/brichet))
+- Added test to check close tab button has a title [#15086](https://github.com/jupyterlab/jupyterlab/pull/15086) ([@m158261](https://github.com/m158261))
+
+### Documentation improvements
+
+- Fix typo in `Notification.dismiss` [#15197](https://github.com/jupyterlab/jupyterlab/pull/15197) ([@krassowski](https://github.com/krassowski))
+- Restore dark/light toggle, remove duplicated search box [#15141](https://github.com/jupyterlab/jupyterlab/pull/15141) ([@krassowski](https://github.com/krassowski))
+- New docs page: developer/accessibility.html [#14426](https://github.com/jupyterlab/jupyterlab/pull/14426) ([@gabalafou](https://github.com/gabalafou))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-09-14&to=2023-10-11&type=c))
+
+[@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2023-09-14..2023-10-11&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-09-14..2023-10-11&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-09-14..2023-10-11&type=Issues) | [@HaudinFlorence](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AHaudinFlorence+updated%3A2023-09-14..2023-10-11&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-09-14..2023-10-11&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-09-14..2023-10-11&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-09-14..2023-10-11&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-09-14..2023-10-11&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-09-14..2023-10-11&type=Issues) | [@parmentelat](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aparmentelat+updated%3A2023-09-14..2023-10-11&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-09-14..2023-10-11&type=Issues)
+
+## 4.0.6
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.5...3064ad495cd9a456737d78082d2fee6f83e131bb))
+
+### Enhancements made
+
+- Add more LSP request types [#15064](https://github.com/jupyterlab/jupyterlab/pull/15064) ([@krassowski](https://github.com/krassowski))
+- Expose `processedItemsCache` as a protected in `CompleterModel` [#15025](https://github.com/jupyterlab/jupyterlab/pull/15025) ([@krassowski](https://github.com/krassowski))
+- Fix `filebrowser.open` and add ability to provide a factory [#14983](https://github.com/jupyterlab/jupyterlab/pull/14983) ([@fcollonval](https://github.com/fcollonval))
+- Use config compatible with notebook 7 [#14978](https://github.com/jupyterlab/jupyterlab/pull/14978) ([@fcollonval](https://github.com/fcollonval))
+
+### Bugs fixed
+
+- Fix return type of `getMimeTypeByLanguage()` [#15101](https://github.com/jupyterlab/jupyterlab/pull/15101) ([@krassowski](https://github.com/krassowski))
+- Fix documentation panel display logic of the completer [#15106](https://github.com/jupyterlab/jupyterlab/pull/15106) ([@trungleduc](https://github.com/trungleduc))
+- Check applicable provider in ProviderReconciliator [#15094](https://github.com/jupyterlab/jupyterlab/pull/15094) ([@trungleduc](https://github.com/trungleduc))
+- Completer: switch renderer & model on update, update on providers change [#15065](https://github.com/jupyterlab/jupyterlab/pull/15065) ([@krassowski](https://github.com/krassowski))
+- Fix `_updateConstraints` missing `protected`/`private` classifier. [#15066](https://github.com/jupyterlab/jupyterlab/pull/15066) ([@krassowski](https://github.com/krassowski))
+- `HoverBox`: adjust `right` when moving node to fit within window [#15052](https://github.com/jupyterlab/jupyterlab/pull/15052) ([@krassowski](https://github.com/krassowski))
+- fixes codemirror settings [#15009](https://github.com/jupyterlab/jupyterlab/pull/15009) ([@andrewfulton9](https://github.com/andrewfulton9))
+- Pass completion context to `shouldShowContinuousHint()` [#15015](https://github.com/jupyterlab/jupyterlab/pull/15015) ([@krassowski](https://github.com/krassowski))
+- Fix translation syntax to extract it by the parser [#14979](https://github.com/jupyterlab/jupyterlab/pull/14979) ([@fcollonval](https://github.com/fcollonval))
+- added title to Close tab icon [#14973](https://github.com/jupyterlab/jupyterlab/pull/14973) ([@j264415](https://github.com/j264415))
 
 ### Maintenance and upkeep improvements
 
-- Remove pre-commit job [#15154](https://github.com/jupyterlab/jupyterlab/pull/15154) ([@fcollonval](https://github.com/fcollonval))
 - Install playwright browser in jupyterlab.browser_check [#15117](https://github.com/jupyterlab/jupyterlab/pull/15117) ([@brichet](https://github.com/brichet))
+- Enable Playwright trace [#15087](https://github.com/jupyterlab/jupyterlab/pull/15087) ([@jtpio](https://github.com/jtpio))
+- Bump ruff from 0.0.282 to 0.0.286 [#15056](https://github.com/jupyterlab/jupyterlab/pull/15056) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- React on galata update comment, fix binder URL in docs [#15070](https://github.com/jupyterlab/jupyterlab/pull/15070) ([@krassowski](https://github.com/krassowski))
+- Deprecate LSP adapter `getEditorIndexAt()` method [#15028](https://github.com/jupyterlab/jupyterlab/pull/15028) ([@krassowski](https://github.com/krassowski))
+- Fix pepy.tech links [#14982](https://github.com/jupyterlab/jupyterlab/pull/14982) ([@fcollonval](https://github.com/fcollonval))
+- simplify binder python baseline [#14971](https://github.com/jupyterlab/jupyterlab/pull/14971) ([@bollwyvl](https://github.com/bollwyvl))
+- Restore welcome test [#14946](https://github.com/jupyterlab/jupyterlab/pull/14946) ([@fcollonval](https://github.com/fcollonval))
+- Bump black\[jupyter\] from 23.3.0 to 23.7.0 [#14893](https://github.com/jupyterlab/jupyterlab/pull/14893) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+
+### Documentation improvements
+
+- React on galata update comment, fix binder URL in docs [#15070](https://github.com/jupyterlab/jupyterlab/pull/15070) ([@krassowski](https://github.com/krassowski))
+- Remove `--UNSAFE` flag in the extension tutorial docs [#15007](https://github.com/jupyterlab/jupyterlab/pull/15007) ([@jtpio](https://github.com/jtpio))
+- Fix more links [#14989](https://github.com/jupyterlab/jupyterlab/pull/14989) ([@fcollonval](https://github.com/fcollonval))
 - Fix pepy.tech links [#14982](https://github.com/jupyterlab/jupyterlab/pull/14982) ([@fcollonval](https://github.com/fcollonval))
+
+### API and Breaking Changes
+
+- Check applicable provider in ProviderReconciliator [#15094](https://github.com/jupyterlab/jupyterlab/pull/15094) ([@trungleduc](https://github.com/trungleduc))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-08-13&to=2023-09-14&type=c))
+
+[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2023-08-13..2023-09-14&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2023-08-13..2023-09-14&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2023-08-13..2023-09-14&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-08-13..2023-09-14&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-08-13..2023-09-14&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-08-13..2023-09-14&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-08-13..2023-09-14&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-08-13..2023-09-14&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-08-13..2023-09-14&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-08-13..2023-09-14&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-08-13..2023-09-14&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-08-13..2023-09-14&type=Issues)
+
+## 4.0.5
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.4...7113c486f9146c84ec83197bbaa4e11d7217bac5))
+
+### Enhancements made
+
+- Bump lumino packages [#14951](https://github.com/jupyterlab/jupyterlab/pull/14951) ([@fcollonval](https://github.com/fcollonval))
+
+### Bugs fixed
+
+- Fix View Menu "Show line number" does not show its corresponding shortcut  [#14740](https://github.com/jupyterlab/jupyterlab/pull/14740) ([@FoSuCloud](https://github.com/FoSuCloud))
+- Allow opening links in new tabs when HTML is trusted [#14933](https://github.com/jupyterlab/jupyterlab/pull/14933) ([@yuvipanda](https://github.com/yuvipanda))
+- Make the DOM structure of linked output views more similar to outputs [#14911](https://github.com/jupyterlab/jupyterlab/pull/14911) ([@SylvainCorlay](https://github.com/SylvainCorlay))
+- Custom script to upgrade `staging/yarn.lock` [#14926](https://github.com/jupyterlab/jupyterlab/pull/14926) ([@fcollonval](https://github.com/fcollonval))
+- Fix incorrect indentation browser_check.py [#14921](https://github.com/jupyterlab/jupyterlab/pull/14921) ([@mctoohey](https://github.com/mctoohey))
+
+### Maintenance and upkeep improvements
+
+- Check backward dep [#14953](https://github.com/jupyterlab/jupyterlab/pull/14953) ([@fcollonval](https://github.com/fcollonval))
+- Ensure not breaking backward compatibility [#14699](https://github.com/jupyterlab/jupyterlab/pull/14699) ([@fcollonval](https://github.com/fcollonval))
+- Make the browser check `default_url` configurable [#14944](https://github.com/jupyterlab/jupyterlab/pull/14944) ([@jtpio](https://github.com/jtpio))
 - Fix broken link [#14937](https://github.com/jupyterlab/jupyterlab/pull/14937) ([@fcollonval](https://github.com/fcollonval))
+- Remove docker ignore file [#14936](https://github.com/jupyterlab/jupyterlab/pull/14936) ([@fcollonval](https://github.com/fcollonval))
 - Rename readthedoc config [#14927](https://github.com/jupyterlab/jupyterlab/pull/14927) ([@fcollonval](https://github.com/fcollonval))
-- Update the `jupyter labextension list` compat message [#14680](https://github.com/jupyterlab/jupyterlab/pull/14680) ([@jtpio](https://github.com/jtpio))
 
 ### Documentation improvements
 
-- Install playwright browser in jupyterlab.browser_check [#15117](https://github.com/jupyterlab/jupyterlab/pull/15117) ([@brichet](https://github.com/brichet))
-- Fix pepy.tech links [#14982](https://github.com/jupyterlab/jupyterlab/pull/14982) ([@fcollonval](https://github.com/fcollonval))
-- Create JupyterLab 3.4.4 accessibility statement [#14856](https://github.com/jupyterlab/jupyterlab/pull/14856) ([@isabela-pf](https://github.com/isabela-pf))
-- Update docs to `jupyter_server_config.py` [#13208](https://github.com/jupyterlab/jupyterlab/pull/13208) ([@jtpio](https://github.com/jtpio))
-- Update the `jupyter labextension list` compat message [#14680](https://github.com/jupyterlab/jupyterlab/pull/14680) ([@jtpio](https://github.com/jtpio))
+- Fix broken link [#14937](https://github.com/jupyterlab/jupyterlab/pull/14937) ([@fcollonval](https://github.com/fcollonval))
+- Custom script to upgrade `staging/yarn.lock` [#14926](https://github.com/jupyterlab/jupyterlab/pull/14926) ([@fcollonval](https://github.com/fcollonval))
 
 ### Contributors to this release
 
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-06-26&to=2023-09-26&type=c))
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-08-03&to=2023-08-13&type=c))
 
-[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2023-06-26..2023-09-26&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2023-06-26..2023-09-26&type=Issues) | [@brichet](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrichet+updated%3A2023-06-26..2023-09-26&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2023-06-26..2023-09-26&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-06-26..2023-09-26&type=Issues) | [@g547315](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ag547315+updated%3A2023-06-26..2023-09-26&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-06-26..2023-09-26&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2023-06-26..2023-09-26&type=Issues) | [@j264415](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aj264415+updated%3A2023-06-26..2023-09-26&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-06-26..2023-09-26&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-06-26..2023-09-26&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-06-26..2023-09-26&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-06-26..2023-09-26&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-06-26..2023-09-26&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-06-26..2023-09-26&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-06-26..2023-09-26&type=Issues)
+[@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-08-03..2023-08-13&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-08-03..2023-08-13&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-08-03..2023-08-13&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-08-03..2023-08-13&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-08-03..2023-08-13&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-08-03..2023-08-13&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-08-03..2023-08-13&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-08-03..2023-08-13&type=Issues)
 
-<!-- <END NEW CHANGELOG ENTRY> -->
+## 4.0.4
 
-## 3.6.5
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.3...66dfed2e428d969679ab09d8806c7b8e65a9b496))
 
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.4...86e69ddae07dfaa5166c85361658e298dc16210c))
+### Enhancements made
+
+- Recommend major versions for Lab 3/Lab 4 compatible extensions [#14908](https://github.com/jupyterlab/jupyterlab/pull/14908) ([@JasonWeill](https://github.com/JasonWeill))
+- Improve upgrade extension script [#14882](https://github.com/jupyterlab/jupyterlab/pull/14882) ([@fcollonval](https://github.com/fcollonval))
+- Adds rank to ICompletionProvider [#14800](https://github.com/jupyterlab/jupyterlab/pull/14800) ([@hbcarlos](https://github.com/hbcarlos))
+- Deprecates collaborative flag [#14792](https://github.com/jupyterlab/jupyterlab/pull/14792) ([@hbcarlos](https://github.com/hbcarlos))
 
 ### Bugs fixed
 
+- Fix semantic commands enabled status [#14664](https://github.com/jupyterlab/jupyterlab/pull/14664) ([@fcollonval](https://github.com/fcollonval))
+- In defer mode render enough cells to fill the viewport [#14865](https://github.com/jupyterlab/jupyterlab/pull/14865) ([@fcollonval](https://github.com/fcollonval))
+- Fix CodeMirror tooltip positioning and tooltip background [#14858](https://github.com/jupyterlab/jupyterlab/pull/14858) ([@krassowski](https://github.com/krassowski))
+- Removes context data from shared model [#14771](https://github.com/jupyterlab/jupyterlab/pull/14771) ([@hbcarlos](https://github.com/hbcarlos))
+- fix: out of order headings display in toc [#14753](https://github.com/jupyterlab/jupyterlab/pull/14753) ([@skyetim](https://github.com/skyetim))
+- fix: update blocked extensions uris [#14846](https://github.com/jupyterlab/jupyterlab/pull/14846) ([@emmanuel-ferdman](https://github.com/emmanuel-ferdman))
+- Fix CodeMirror theme selection background color [#14841](https://github.com/jupyterlab/jupyterlab/pull/14841) ([@AllanChain](https://github.com/AllanChain))
+- Fix icon and theme/styles for grid in CSV/TSV viewer [#14822](https://github.com/jupyterlab/jupyterlab/pull/14822) ([@krassowski](https://github.com/krassowski))
+- Adds missing parameters to ICompleterProvider API [#14809](https://github.com/jupyterlab/jupyterlab/pull/14809) ([@hbcarlos](https://github.com/hbcarlos))
+- Adds this context when calling ICompletionProvider.modelFactory [#14812](https://github.com/jupyterlab/jupyterlab/pull/14812) ([@hbcarlos](https://github.com/hbcarlos))
+- Emit changed signal from output area when an output is updated [#14785](https://github.com/jupyterlab/jupyterlab/pull/14785) ([@bollwyvl](https://github.com/bollwyvl))
+- Improve typing to avoid bad usage of `context.contentsModel.content` [#14660](https://github.com/jupyterlab/jupyterlab/pull/14660) ([@fcollonval](https://github.com/fcollonval))
+
+### Maintenance and upkeep improvements
+
+- Fix integration tests [#14886](https://github.com/jupyterlab/jupyterlab/pull/14886) ([@fcollonval](https://github.com/fcollonval))
+- Bump stylelint from 14.16.1 to 15.10.1 [#14802](https://github.com/jupyterlab/jupyterlab/pull/14802) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Relax `Event.IManager` interface [#14770](https://github.com/jupyterlab/jupyterlab/pull/14770) ([@trungleduc](https://github.com/trungleduc))
+- Bump word-wrap from 1.2.3 to 1.2.4 [#14847](https://github.com/jupyterlab/jupyterlab/pull/14847) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Add style validator [#14795](https://github.com/jupyterlab/jupyterlab/pull/14795) ([@krassowski](https://github.com/krassowski))
+- Bump semver from 7.3.8 to 7.5.2 [#14750](https://github.com/jupyterlab/jupyterlab/pull/14750) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+
+### Documentation improvements
+
+- Recommend major versions for Lab 3/Lab 4 compatible extensions [#14908](https://github.com/jupyterlab/jupyterlab/pull/14908) ([@JasonWeill](https://github.com/JasonWeill))
+- Update yarn link documentation [#14902](https://github.com/jupyterlab/jupyterlab/pull/14902) ([@gabalafou](https://github.com/gabalafou))
+- Create JupyterLab 3.4.4 accessibility statement [#14856](https://github.com/jupyterlab/jupyterlab/pull/14856) ([@isabela-pf](https://github.com/isabela-pf))
+- Align copier version with the extension template [#14899](https://github.com/jupyterlab/jupyterlab/pull/14899) ([@jtpio](https://github.com/jtpio))
+- Bump stylelint from 14.16.1 to 15.10.1 [#14802](https://github.com/jupyterlab/jupyterlab/pull/14802) ([@dependabot\[bot\]](https://github.com/apps/dependabot))
+- Fix broken link to security model [#14861](https://github.com/jupyterlab/jupyterlab/pull/14861) ([@fcollonval](https://github.com/fcollonval))
+- Improve examples [#14726](https://github.com/jupyterlab/jupyterlab/pull/14726) ([@fcollonval](https://github.com/fcollonval))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-07-13&to=2023-08-03&type=c))
+
+[@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-07-13..2023-08-03&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-07-13..2023-08-03&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-07-13..2023-08-03&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-07-13..2023-08-03&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-07-13..2023-08-03&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-07-13..2023-08-03&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-07-13..2023-08-03&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-07-13..2023-08-03&type=Issues)
+
+## 4.0.3
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.2...c29c809db259baeb1221f97c115932ea43b690f3))
+
+### Bugs fixed
+
+- Fix incorrect CSS value for statusbar popover shadow [#14789](https://github.com/jupyterlab/jupyterlab/pull/14789) ([@krassowski](https://github.com/krassowski))
+- Fix indentation problem after multi-line Python function definition [#14748](https://github.com/jupyterlab/jupyterlab/pull/14748) ([@FoSuCloud](https://github.com/FoSuCloud))
+- Fix HTML lang being set to 'default' resulting in blind users with screenreader reading everything in German [#14705](https://github.com/jupyterlab/jupyterlab/pull/14705) ([@andrii-i](https://github.com/andrii-i))
+- Expose `serverCapabilities`, `provides`, and  `updateLogging` [#14712](https://github.com/jupyterlab/jupyterlab/pull/14712) ([@krassowski](https://github.com/krassowski))
+- Fix kernel message deserialization [#14721](https://github.com/jupyterlab/jupyterlab/pull/14721) ([@davidbrochart](https://github.com/davidbrochart))
 - Ensure the kernel selector show the default kernel if notebook does not have a valid assigned kernel [#14693](https://github.com/jupyterlab/jupyterlab/pull/14693) ([@echarles](https://github.com/echarles))
-- Avoid clearing the host node while rendering Markdown [#14579](https://github.com/jupyterlab/jupyterlab/pull/14579) ([@c3Vu](https://github.com/c3Vu))
+- Add a title to the Markdown Preview widget [#14681](https://github.com/jupyterlab/jupyterlab/pull/14681) ([@jtpio](https://github.com/jtpio))
 
 ### Maintenance and upkeep improvements
 
+- Separate LSP settings handling out to another plugin [#14786](https://github.com/jupyterlab/jupyterlab/pull/14786) ([@krassowski](https://github.com/krassowski))
+- fix changed username, pin pydantic\<2 for CI [#14780](https://github.com/jupyterlab/jupyterlab/pull/14780) ([@bollwyvl](https://github.com/bollwyvl))
+- Clean up obsolete docker [#14729](https://github.com/jupyterlab/jupyterlab/pull/14729) ([@fcollonval](https://github.com/fcollonval))
+- Port LSP connection manager fixes/enhancements [#14714](https://github.com/jupyterlab/jupyterlab/pull/14714) ([@krassowski](https://github.com/krassowski))
+- Drop `StatusMessage` which is dead code [#14713](https://github.com/jupyterlab/jupyterlab/pull/14713) ([@krassowski](https://github.com/krassowski))
+- Update requirements: conda != Python, jupyter-server over notebook [#14709](https://github.com/jupyterlab/jupyterlab/pull/14709) ([@krassowski](https://github.com/krassowski))
+- Don't list log file as changes when checking license header [#14700](https://github.com/jupyterlab/jupyterlab/pull/14700) ([@fcollonval](https://github.com/fcollonval))
+- Update branch configuration [#14694](https://github.com/jupyterlab/jupyterlab/pull/14694) ([@fcollonval](https://github.com/fcollonval))
+- Update the `jupyter labextension list` compat message [#14680](https://github.com/jupyterlab/jupyterlab/pull/14680) ([@jtpio](https://github.com/jtpio))
+
+### Documentation improvements
+
+- fix changed username, pin pydantic\<2 for CI [#14780](https://github.com/jupyterlab/jupyterlab/pull/14780) ([@bollwyvl](https://github.com/bollwyvl))
+- fix: typo in param annotation [#14745](https://github.com/jupyterlab/jupyterlab/pull/14745) ([@emmanuel-ferdman](https://github.com/emmanuel-ferdman))
+- fix: typo in common extension points page [#14727](https://github.com/jupyterlab/jupyterlab/pull/14727) ([@emmanuel-ferdman](https://github.com/emmanuel-ferdman))
+- Fix docs for semantic commands registration [#14718](https://github.com/jupyterlab/jupyterlab/pull/14718) ([@jtpio](https://github.com/jtpio))
+- Ensure documentation switcher data always points to the latest JSON. [#14698](https://github.com/jupyterlab/jupyterlab/pull/14698) ([@fcollonval](https://github.com/fcollonval))
 - Update requirements: conda != Python, jupyter-server over notebook [#14709](https://github.com/jupyterlab/jupyterlab/pull/14709) ([@krassowski](https://github.com/krassowski))
+- Set out expectations for `good first issue` label [#14686](https://github.com/jupyterlab/jupyterlab/pull/14686) ([@krassowski](https://github.com/krassowski))
+- Update branch configuration [#14694](https://github.com/jupyterlab/jupyterlab/pull/14694) ([@fcollonval](https://github.com/fcollonval))
+- Update the `jupyter labextension list` compat message [#14680](https://github.com/jupyterlab/jupyterlab/pull/14680) ([@jtpio](https://github.com/jtpio))
+- Document more features for JupyterLab on Binder [#14677](https://github.com/jupyterlab/jupyterlab/pull/14677) ([@fcollonval](https://github.com/fcollonval))
+- Fix copier command in documentation [#14671](https://github.com/jupyterlab/jupyterlab/pull/14671) ([@fcollonval](https://github.com/fcollonval))
+- Update contributing.rst for Windows users [#14666](https://github.com/jupyterlab/jupyterlab/pull/14666) ([@coriegulik](https://github.com/coriegulik))
+
+### Other merged PRs
+
+- fix: typo in notifications settings documentation [#14747](https://github.com/jupyterlab/jupyterlab/pull/14747) ([@holzman](https://github.com/holzman))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-06-08&to=2023-07-13&type=c))
+
+[@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-06-08..2023-07-13&type=Issues) | [@brijsiyag](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrijsiyag+updated%3A2023-06-08..2023-07-13&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2023-06-08..2023-07-13&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-06-08..2023-07-13&type=Issues) | [@GabrielaVives](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AGabrielaVives+updated%3A2023-06-08..2023-07-13&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-06-08..2023-07-13&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2023-06-08..2023-07-13&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-06-08..2023-07-13&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-06-08..2023-07-13&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-06-08..2023-07-13&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-06-08..2023-07-13&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-06-08..2023-07-13&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-06-08..2023-07-13&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-06-08..2023-07-13&type=Issues)
+
+## 4.0.2
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.1...6444459940395343a9999a40af43b8b621cc6ace))
+
+### Bugs fixed
+
+- Add support for copier 8.0.0 [#14644](https://github.com/jupyterlab/jupyterlab/pull/14644) ([@fcollonval](https://github.com/fcollonval))
+- Update documentation snapshots [#14636](https://github.com/jupyterlab/jupyterlab/pull/14636) ([@fcollonval](https://github.com/fcollonval))
+- Allow Lumino 1.x version for rendermime-interfaces [#14618](https://github.com/jupyterlab/jupyterlab/pull/14618) ([@fcollonval](https://github.com/fcollonval))
+
+### Maintenance and upkeep improvements
+
+- Bump ruff from 0.0.270 to 0.0.271 [#14655](https://github.com/jupyterlab/jupyterlab/pull/14655) ([@dependabot](https://github.com/dependabot))
+- Bump altair from 5.0.0 to 5.0.1 [#14654](https://github.com/jupyterlab/jupyterlab/pull/14654) ([@dependabot](https://github.com/dependabot))
+- Bump ipython from 8.13.2 to 8.14.0 [#14642](https://github.com/jupyterlab/jupyterlab/pull/14642) ([@dependabot](https://github.com/dependabot))
+- Bump jupyterlab-geojson from 3.3.1 to 3.4.0 [#14632](https://github.com/jupyterlab/jupyterlab/pull/14632) ([@dependabot](https://github.com/dependabot))
+- Bump jupyterlab-language-pack-zh-cn from 3.6.post2 to 4.0.post0 [#14631](https://github.com/jupyterlab/jupyterlab/pull/14631) ([@dependabot](https://github.com/dependabot))
+- Bump ruff from 0.0.267 to 0.0.270 [#14630](https://github.com/jupyterlab/jupyterlab/pull/14630) ([@dependabot](https://github.com/dependabot))
+- Bump pandas from 2.0.1 to 2.0.2 [#14629](https://github.com/jupyterlab/jupyterlab/pull/14629) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.9.2 to 36.0.11 [#14628](https://github.com/jupyterlab/jupyterlab/pull/14628) ([@dependabot](https://github.com/dependabot))
 - Fix integration test looking for jupyter heading [#14621](https://github.com/jupyterlab/jupyterlab/pull/14621) ([@fcollonval](https://github.com/fcollonval))
+- Bump altair from 4.2.2 to 5.0.0 [#14545](https://github.com/jupyterlab/jupyterlab/pull/14545) ([@dependabot](https://github.com/dependabot))
+- Bump ipython from 8.13.1 to 8.13.2 [#14543](https://github.com/jupyterlab/jupyterlab/pull/14543) ([@dependabot](https://github.com/dependabot))
+
+### Documentation improvements
+
+- JupyterLab ecosystem docs improvements [#14568](https://github.com/jupyterlab/jupyterlab/pull/14568) ([@ericsnekbytes](https://github.com/ericsnekbytes))
 
 ### Contributors to this release
 
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-05-31&to=2023-06-26&type=c))
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-05-30&to=2023-06-08&type=c))
 
-[@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-05-31..2023-06-26&type=Issues) | [@brijsiyag](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrijsiyag+updated%3A2023-05-31..2023-06-26&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2023-05-31..2023-06-26&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-05-31..2023-06-26&type=Issues) | [@GabrielaVives](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AGabrielaVives+updated%3A2023-05-31..2023-06-26&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-05-31..2023-06-26&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2023-05-31..2023-06-26&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-05-31..2023-06-26&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-05-31..2023-06-26&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-05-31..2023-06-26&type=Issues) | [@lumberbot-app](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Alumberbot-app+updated%3A2023-05-31..2023-06-26&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-05-31..2023-06-26&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-05-31..2023-06-26&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-05-31..2023-06-26&type=Issues)
+[@dependabot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adependabot+updated%3A2023-05-30..2023-06-08&type=Issues) | [@ericsnekbytes](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aericsnekbytes+updated%3A2023-05-30..2023-06-08&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-05-30..2023-06-08&type=Issues) | [@GabrielaVives](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AGabrielaVives+updated%3A2023-05-30..2023-06-08&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-05-30..2023-06-08&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-05-30..2023-06-08&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-05-30..2023-06-08&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-05-30..2023-06-08&type=Issues) | [@pre-commit-ci](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Apre-commit-ci+updated%3A2023-05-30..2023-06-08&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-05-30..2023-06-08&type=Issues)
 
-## 3.6.4
+## 4.0.1
 
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.3...2031b9b07504b015605e049dc73dded15dd6d7f0))
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.0...e1ec668bfe9dbc02a631234c209533097d39ab17))
 
 ### Enhancements made
 
-- Set `Contents.ContentType` to string [#12875](https://github.com/jupyterlab/jupyterlab/pull/12875) ([@trungleduc](https://github.com/trungleduc))
+- Enable base numbering option [#14586](https://github.com/jupyterlab/jupyterlab/pull/14586) ([@tuncbkose](https://github.com/tuncbkose))
+- added dynamic functionality to the text spacing [#14561](https://github.com/jupyterlab/jupyterlab/pull/14561) ([@j264415](https://github.com/j264415))
+- Implement dialog element for dialogs with accessibility [#14560](https://github.com/jupyterlab/jupyterlab/pull/14560) ([@t03857785](https://github.com/t03857785))
 - Allow `maxHeight` being equal to `minHeight` for HoverBox's visibility [#14533](https://github.com/jupyterlab/jupyterlab/pull/14533) ([@nishikantparmariam](https://github.com/nishikantparmariam))
+- FileBrowser: Added the `sortNotebooksFirst` option [#14497](https://github.com/jupyterlab/jupyterlab/pull/14497) ([@tpatel](https://github.com/tpatel))
+
+### Bugs fixed
+
+- Inherit font family from `.cm-editor` [#14601](https://github.com/jupyterlab/jupyterlab/pull/14601) ([@krassowski](https://github.com/krassowski))
+- Fix: Toolbar doesn't update on paste. [#14596](https://github.com/jupyterlab/jupyterlab/pull/14596) ([@brijsiyag](https://github.com/brijsiyag))
+- Highlight booleans using the same style as keywords [#14588](https://github.com/jupyterlab/jupyterlab/pull/14588) ([@krassowski](https://github.com/krassowski))
+- Avoid clearing the host node while rendering Markdown [#14579](https://github.com/jupyterlab/jupyterlab/pull/14579) ([@c3Vu](https://github.com/c3Vu))
+- Fix react error log in shortcuts dialog [#14566](https://github.com/jupyterlab/jupyterlab/pull/14566) ([@c3Vu](https://github.com/c3Vu))
+- Updates docs to reflect that v4 is released [#14556](https://github.com/jupyterlab/jupyterlab/pull/14556) ([@JasonWeill](https://github.com/JasonWeill))
+- Fix drive handling for sessions and terminals [#14519](https://github.com/jupyterlab/jupyterlab/pull/14519) ([@fcollonval](https://github.com/fcollonval))
+
+### Maintenance and upkeep improvements
+
+- Skip checking for updates in UI tests [#14609](https://github.com/jupyterlab/jupyterlab/pull/14609) ([@fcollonval](https://github.com/fcollonval))
+- Fix flaky search tests [#14605](https://github.com/jupyterlab/jupyterlab/pull/14605) ([@krassowski](https://github.com/krassowski))
+- Make `IStatusBar` optional for the notification plugin [#14593](https://github.com/jupyterlab/jupyterlab/pull/14593) ([@jtpio](https://github.com/jtpio))
+- Remove `@jupyterlab/celltags` from the `resolutions` [#14551](https://github.com/jupyterlab/jupyterlab/pull/14551) ([@jtpio](https://github.com/jtpio))
+- Bump ruff from 0.0.263 to 0.0.267 [#14544](https://github.com/jupyterlab/jupyterlab/pull/14544) ([@dependabot](https://github.com/dependabot))
+- Bump jupyterlab-language-pack-zh-cn from 3.6.post1 to 3.6.post2 [#14542](https://github.com/jupyterlab/jupyterlab/pull/14542) ([@dependabot](https://github.com/dependabot))
+- Update references to `main` [#14492](https://github.com/jupyterlab/jupyterlab/pull/14492) ([@jtpio](https://github.com/jtpio))
+
+### Documentation improvements
+
+- Enable base numbering option [#14586](https://github.com/jupyterlab/jupyterlab/pull/14586) ([@tuncbkose](https://github.com/tuncbkose))
+- Update interface_customization.rst [#14572](https://github.com/jupyterlab/jupyterlab/pull/14572) ([@JeanLescutMuller](https://github.com/JeanLescutMuller))
+- Updates docs to reflect that v4 is released [#14556](https://github.com/jupyterlab/jupyterlab/pull/14556) ([@JasonWeill](https://github.com/JasonWeill))
+- Fix typo in CHANGELOG.md [#14546](https://github.com/jupyterlab/jupyterlab/pull/14546) ([@jtpio](https://github.com/jtpio))
+- Update references to `main` [#14492](https://github.com/jupyterlab/jupyterlab/pull/14492) ([@jtpio](https://github.com/jtpio))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-05-15&to=2023-05-30&type=c))
+
+[@brijsiyag](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrijsiyag+updated%3A2023-05-15..2023-05-30&type=Issues) | [@c3Vu](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ac3Vu+updated%3A2023-05-15..2023-05-30&type=Issues) | [@dependabot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adependabot+updated%3A2023-05-15..2023-05-30&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-05-15..2023-05-30&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-05-15..2023-05-30&type=Issues) | [@j264415](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aj264415+updated%3A2023-05-15..2023-05-30&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2023-05-15..2023-05-30&type=Issues) | [@JeanLescutMuller](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJeanLescutMuller+updated%3A2023-05-15..2023-05-30&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-05-15..2023-05-30&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-05-15..2023-05-30&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-05-15..2023-05-30&type=Issues) | [@nishikantparmariam](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Anishikantparmariam+updated%3A2023-05-15..2023-05-30&type=Issues) | [@t03857785](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3At03857785+updated%3A2023-05-15..2023-05-30&type=Issues) | [@tpatel](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atpatel+updated%3A2023-05-15..2023-05-30&type=Issues) | [@tuncbkose](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atuncbkose+updated%3A2023-05-15..2023-05-30&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-05-15..2023-05-30&type=Issues)
+
+## 4.0.0
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.0rc1...5d6db82cad747dd8384a2c3bdfb93ee85144373a))
+
+JupyterLab 4 is released! :tada:
+
+Check out the new features, improvements and bug fixes: https://jupyterlab.readthedocs.io/en/stable/getting_started/changelog.html#v4-0
+
+For extension authors, there is a migration guide available to help you migrate your extensions to JupyterLab 4: https://jupyterlab.readthedocs.io/en/stable/extension/extension_migration.html#jupyterlab-3-x-to-4-x
+
+______________________________________________________________________
+
+For reference, below are the changed since `v4.0.0rc1`:
+
+### Bugs fixed
+
+- Log console can be linked to any document widget [#14517](https://github.com/jupyterlab/jupyterlab/pull/14517) ([@fcollonval](https://github.com/fcollonval))
+- Fix yarn argument [#14515](https://github.com/jupyterlab/jupyterlab/pull/14515) ([@fcollonval](https://github.com/fcollonval))
+- Fix some usages of the translation object [#14514](https://github.com/jupyterlab/jupyterlab/pull/14514) ([@fcollonval](https://github.com/fcollonval))
+- Add math expression parser for markdown [#14509](https://github.com/jupyterlab/jupyterlab/pull/14509) ([@fcollonval](https://github.com/fcollonval))
+- Fix kernel completion provider assumptions [#14505](https://github.com/jupyterlab/jupyterlab/pull/14505) ([@krassowski](https://github.com/krassowski))
+- Fix completer bug with cycling through options [#14475](https://github.com/jupyterlab/jupyterlab/pull/14475) ([@afshin](https://github.com/afshin))
+
+### Maintenance and upkeep improvements
+
+- Bump typedoc [#14537](https://github.com/jupyterlab/jupyterlab/pull/14537) ([@krassowski](https://github.com/krassowski))
+- Fix some usages of the translation object [#14514](https://github.com/jupyterlab/jupyterlab/pull/14514) ([@fcollonval](https://github.com/fcollonval))
+- Remove all registry handling in lock files [#14504](https://github.com/jupyterlab/jupyterlab/pull/14504) ([@fcollonval](https://github.com/fcollonval))
+
+### Documentation improvements
+
+- Remove all registry handling in lock files [#14504](https://github.com/jupyterlab/jupyterlab/pull/14504) ([@fcollonval](https://github.com/fcollonval))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-05-06&to=2023-05-15&type=c))
+
+[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2023-05-06..2023-05-15&type=Issues) | [@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-05-06..2023-05-15&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-05-06..2023-05-15&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-05-06..2023-05-15&type=Issues) | [@HaudinFlorence](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AHaudinFlorence+updated%3A2023-05-06..2023-05-15&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-05-06..2023-05-15&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-05-06..2023-05-15&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-05-06..2023-05-15&type=Issues)
+
+## 4.0.0rc1
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v4.0.0rc0...308b8a4cdeb2e7c64cd9489bf908ddaefd1aa4fe))
+
+### Bugs fixed
+
+- Fix yarn deduplication and check [#14498](https://github.com/jupyterlab/jupyterlab/pull/14498) ([@fcollonval](https://github.com/fcollonval))
+- Don't listen for cell resizing when notebooks is hiding [#14491](https://github.com/jupyterlab/jupyterlab/pull/14491) ([@fcollonval](https://github.com/fcollonval))
+- Switch default notebook windowing mode to 'defer' [#14490](https://github.com/jupyterlab/jupyterlab/pull/14490) ([@fcollonval](https://github.com/fcollonval))
+- Initialize PluginList .\_query to '' instead of undefined if query parameter is not passed [#14486](https://github.com/jupyterlab/jupyterlab/pull/14486) ([@andrii-i](https://github.com/andrii-i))
+- Fix initial load of contextual help [#14484](https://github.com/jupyterlab/jupyterlab/pull/14484) ([@afshin](https://github.com/afshin))
+- Improve extension upgrade script [#14482](https://github.com/jupyterlab/jupyterlab/pull/14482) ([@fcollonval](https://github.com/fcollonval))
+- Updates announcements to better conform to RFC atom standard. [#14480](https://github.com/jupyterlab/jupyterlab/pull/14480) ([@andrewfulton9](https://github.com/andrewfulton9))
+- Fix side-by-side cell input/output rendering in Firefox [#14479](https://github.com/jupyterlab/jupyterlab/pull/14479) ([@afshin](https://github.com/afshin))
+- Fix TableOfContentsFactory typing [#14477](https://github.com/jupyterlab/jupyterlab/pull/14477) ([@fcollonval](https://github.com/fcollonval))
+- Force rerendering if changes happen during an update. [#14459](https://github.com/jupyterlab/jupyterlab/pull/14459) ([@fcollonval](https://github.com/fcollonval))
+- Fix custom CSS in Virtual notebook rendering [#14444](https://github.com/jupyterlab/jupyterlab/pull/14444) ([@fcollonval](https://github.com/fcollonval))
+- Align search icon in filter box [#14427](https://github.com/jupyterlab/jupyterlab/pull/14427) ([@bikash30851](https://github.com/bikash30851))
+- Fix `Notebook._ensureFocus` [#14425](https://github.com/jupyterlab/jupyterlab/pull/14425) ([@fcollonval](https://github.com/fcollonval))
 - Right-align notification buttons, reduce outer padding, add space between buttons and message [#14412](https://github.com/jupyterlab/jupyterlab/pull/14412) ([@andrii-i](https://github.com/andrii-i))
+- Improve focus behaviour in search [#14387](https://github.com/jupyterlab/jupyterlab/pull/14387) ([@krassowski](https://github.com/krassowski))
+
+### Maintenance and upkeep improvements
+
+- Remove a noisy console warn in the metadata form [#14483](https://github.com/jupyterlab/jupyterlab/pull/14483) ([@afshin](https://github.com/afshin))
+- Bump pandas from 1.5.3 to 2.0.1 [#14472](https://github.com/jupyterlab/jupyterlab/pull/14472) ([@dependabot](https://github.com/dependabot))
+- Bump ipython from 8.12.0 to 8.13.1 [#14470](https://github.com/jupyterlab/jupyterlab/pull/14470) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.7.8 to 35.9.2 [#14469](https://github.com/jupyterlab/jupyterlab/pull/14469) ([@dependabot](https://github.com/dependabot))
+- Update Darian's affiliation [#14468](https://github.com/jupyterlab/jupyterlab/pull/14468) ([@afshin](https://github.com/afshin))
+- Wait for `.lm-hidden` class to disappear before taking snapshot [#14456](https://github.com/jupyterlab/jupyterlab/pull/14456) ([@krassowski](https://github.com/krassowski))
+
+### Documentation improvements
+
+- Improve documentation [#14502](https://github.com/jupyterlab/jupyterlab/pull/14502) ([@fcollonval](https://github.com/fcollonval))
+- Fix yarn deduplication and check [#14498](https://github.com/jupyterlab/jupyterlab/pull/14498) ([@fcollonval](https://github.com/fcollonval))
+- Updates announcements to better conform to RFC atom standard. [#14480](https://github.com/jupyterlab/jupyterlab/pull/14480) ([@andrewfulton9](https://github.com/andrewfulton9))
+- Update Darian's affiliation [#14468](https://github.com/jupyterlab/jupyterlab/pull/14468) ([@afshin](https://github.com/afshin))
+- Fix documentation formatting [#14465](https://github.com/jupyterlab/jupyterlab/pull/14465) ([@JaSpa](https://github.com/JaSpa))
+- Update contributing.rst [#14462](https://github.com/jupyterlab/jupyterlab/pull/14462) ([@gabalafou](https://github.com/gabalafou))
+- Fix broken links in galata/README.md [#14451](https://github.com/jupyterlab/jupyterlab/pull/14451) ([@gabalafou](https://github.com/gabalafou))
+- Document how to use of the command linker Markdown feature [#14450](https://github.com/jupyterlab/jupyterlab/pull/14450) ([@bikash30851](https://github.com/bikash30851))
+- Fix custom CSS in Virtual notebook rendering [#14444](https://github.com/jupyterlab/jupyterlab/pull/14444) ([@fcollonval](https://github.com/fcollonval))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-04-27&to=2023-05-06&type=c))
+
+[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2023-04-27..2023-05-06&type=Issues) | [@andrewfulton9](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrewfulton9+updated%3A2023-04-27..2023-05-06&type=Issues) | [@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-04-27..2023-05-06&type=Issues) | [@bikash30851](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abikash30851+updated%3A2023-04-27..2023-05-06&type=Issues) | [@dependabot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adependabot+updated%3A2023-04-27..2023-05-06&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-04-27..2023-05-06&type=Issues) | [@gabalafou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agabalafou+updated%3A2023-04-27..2023-05-06&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-04-27..2023-05-06&type=Issues) | [@JaSpa](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJaSpa+updated%3A2023-04-27..2023-05-06&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-04-27..2023-05-06&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-04-27..2023-05-06&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-04-27..2023-05-06&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2023-04-27..2023-05-06&type=Issues) | [@pre-commit-ci](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Apre-commit-ci+updated%3A2023-04-27..2023-05-06&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-04-27..2023-05-06&type=Issues)
+
+### 4.0.0rc0
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/956d7e7...8bcfc255907262cba4236d324915dd48943508aa))
+
+#### New features added
+
+- Add output prompt overlay for toggling scroll mode [#14072](https://github.com/jupyterlab/jupyterlab/pull/14072) ([@krassowski](https://github.com/krassowski))
+- Debugger: copy value of variable to clipboard [#13670](https://github.com/jupyterlab/jupyterlab/pull/13670) ([@brichet](https://github.com/brichet))
+- Add copy and paste commands to terminal context menu [#13535](https://github.com/jupyterlab/jupyterlab/pull/13535) ([@krassowski](https://github.com/krassowski))
+- Scroll to cell by ID based on hash fragment [#13285](https://github.com/jupyterlab/jupyterlab/pull/13285) ([@krassowski](https://github.com/krassowski))
+- Persistent side-by-side ratio setting [#12633](https://github.com/jupyterlab/jupyterlab/pull/12633) ([@echarles](https://github.com/echarles))
+
+#### Enhancements made
+
+- Improve header space use, restore description, remove unused styles [#14441](https://github.com/jupyterlab/jupyterlab/pull/14441) ([@krassowski](https://github.com/krassowski))
+- Upgrade ydoc [#14395](https://github.com/jupyterlab/jupyterlab/pull/14395) ([@hbcarlos](https://github.com/hbcarlos))
 - Pass traceback to ServerConnection.ResponseError [#14328](https://github.com/jupyterlab/jupyterlab/pull/14328) ([@a3626a](https://github.com/a3626a))
+- Update extension upgrade script [#14279](https://github.com/jupyterlab/jupyterlab/pull/14279) ([@fcollonval](https://github.com/fcollonval))
+- Add desktop file and icon for it [#14277](https://github.com/jupyterlab/jupyterlab/pull/14277) ([@frenzymadness](https://github.com/frenzymadness))
+- Load `::-webkit-scrollbar` styles on-demand [#14275](https://github.com/jupyterlab/jupyterlab/pull/14275) ([@krassowski](https://github.com/krassowski))
+- Update to TypeScript 5 final [#14215](https://github.com/jupyterlab/jupyterlab/pull/14215) ([@jtpio](https://github.com/jtpio))
+- Adds ids_only argument to the fetch settings request [#14211](https://github.com/jupyterlab/jupyterlab/pull/14211) ([@brichet](https://github.com/brichet))
+- Align Extension manager buttonbar right [#14205](https://github.com/jupyterlab/jupyterlab/pull/14205) ([@andrii-i](https://github.com/andrii-i))
+- Load Python CM parser asynchronously [#14198](https://github.com/jupyterlab/jupyterlab/pull/14198) ([@fcollonval](https://github.com/fcollonval))
+- Improves page loading time by reducing server requests related to settings [#14195](https://github.com/jupyterlab/jupyterlab/pull/14195) ([@brichet](https://github.com/brichet))
+- Add CellList as exported type [#14185](https://github.com/jupyterlab/jupyterlab/pull/14185) ([@peytondmurray](https://github.com/peytondmurray))
+- Show first line of cell when collapsed [#14141](https://github.com/jupyterlab/jupyterlab/pull/14141) ([@marthacryan](https://github.com/marthacryan))
+- Add bottom area to add cells [#14109](https://github.com/jupyterlab/jupyterlab/pull/14109) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Rework search in selection in notebook [#14090](https://github.com/jupyterlab/jupyterlab/pull/14090) ([@krassowski](https://github.com/krassowski))
+- Improve position of output scroll toggle overlay [#14087](https://github.com/jupyterlab/jupyterlab/pull/14087) ([@krassowski](https://github.com/krassowski))
+- Lazily load nbconvert export formats, and optionally cache results [#14081](https://github.com/jupyterlab/jupyterlab/pull/14081) ([@bollwyvl](https://github.com/bollwyvl))
+- Substitute group references in search-and-replace [#14080](https://github.com/jupyterlab/jupyterlab/pull/14080) ([@krassowski](https://github.com/krassowski))
+- Display the version in the extension manager [#14078](https://github.com/jupyterlab/jupyterlab/pull/14078) ([@jtpio](https://github.com/jtpio))
+- Option to disable the autolink feature [#14068](https://github.com/jupyterlab/jupyterlab/pull/14068) ([@cccs-nik](https://github.com/cccs-nik))
+- Move the file name searcher to the file browser toolbar [#14064](https://github.com/jupyterlab/jupyterlab/pull/14064) ([@jtpio](https://github.com/jtpio))
+- Display shortcuts [#14053](https://github.com/jupyterlab/jupyterlab/pull/14053) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Add support for showing the file size in the File Browser [#14044](https://github.com/jupyterlab/jupyterlab/pull/14044) ([@jtpio](https://github.com/jtpio))
+- Include source in dists [#14028](https://github.com/jupyterlab/jupyterlab/pull/14028) ([@vidartf](https://github.com/vidartf))
+- Using metadataform for default notebooktools [#14026](https://github.com/jupyterlab/jupyterlab/pull/14026) ([@brichet](https://github.com/brichet))
+- More informative and specific titles for links and buttons [#14017](https://github.com/jupyterlab/jupyterlab/pull/14017) ([@JasonWeill](https://github.com/JasonWeill))
+- Split standard input line history per session (notebook) [#13944](https://github.com/jupyterlab/jupyterlab/pull/13944) ([@telamonian](https://github.com/telamonian))
+- implements #13797: adds reverse/forward history search for stdin inputs [#13937](https://github.com/jupyterlab/jupyterlab/pull/13937) ([@telamonian](https://github.com/telamonian))
+- Update to ajv 8 and react-json-schema-form 5 [#13924](https://github.com/jupyterlab/jupyterlab/pull/13924) ([@bollwyvl](https://github.com/bollwyvl))
+- Notify command explicitly [#13915](https://github.com/jupyterlab/jupyterlab/pull/13915) ([@fcollonval](https://github.com/fcollonval))
+- Improve Galata [#13909](https://github.com/jupyterlab/jupyterlab/pull/13909) ([@fcollonval](https://github.com/fcollonval))
+- Move RTC packages to an extension [#13907](https://github.com/jupyterlab/jupyterlab/pull/13907) ([@hbcarlos](https://github.com/hbcarlos))
+- Introduce disabled states for the cell move up/move down icons [#13898](https://github.com/jupyterlab/jupyterlab/pull/13898) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Add copy option for directories [#13886](https://github.com/jupyterlab/jupyterlab/pull/13886) ([@kenyaachon](https://github.com/kenyaachon))
+- Make changes to the tooltips of the toolbar actions. [#13861](https://github.com/jupyterlab/jupyterlab/pull/13861) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Caret operator in documentation [#13856](https://github.com/jupyterlab/jupyterlab/pull/13856) ([@JasonWeill](https://github.com/JasonWeill))
+- Improve kernels pane in running sidebar [#13851](https://github.com/jupyterlab/jupyterlab/pull/13851) ([@afshin](https://github.com/afshin))
+- Improves translator API [#13834](https://github.com/jupyterlab/jupyterlab/pull/13834) ([@hbcarlos](https://github.com/hbcarlos))
+- Rework sidebar styles to allow adoption of css `contain:strict` [#13831](https://github.com/jupyterlab/jupyterlab/pull/13831) ([@krassowski](https://github.com/krassowski))
+- Improve form renderer registry [#13823](https://github.com/jupyterlab/jupyterlab/pull/13823) ([@fcollonval](https://github.com/fcollonval))
+- Add languages to the command palette [#13815](https://github.com/jupyterlab/jupyterlab/pull/13815) ([@jtpio](https://github.com/jtpio))
+- New multi line search [#13810](https://github.com/jupyterlab/jupyterlab/pull/13810) ([@c00kie123](https://github.com/c00kie123))
+- Updates jupyter_ydoc, removes the docprovider and uses drives as providers [#13786](https://github.com/jupyterlab/jupyterlab/pull/13786) ([@hbcarlos](https://github.com/hbcarlos))
+- Reduces the context of the form used in metadataform [#13781](https://github.com/jupyterlab/jupyterlab/pull/13781) ([@brichet](https://github.com/brichet))
+- Add support for replace preserving case [#13778](https://github.com/jupyterlab/jupyterlab/pull/13778) ([@krassowski](https://github.com/krassowski))
+- Add whole-word matching option in search bar [#13777](https://github.com/jupyterlab/jupyterlab/pull/13777) ([@krassowski](https://github.com/krassowski))
+- Merge Component registries [#13769](https://github.com/jupyterlab/jupyterlab/pull/13769) ([@brichet](https://github.com/brichet))
+- `default` locale will use OS default locale [#13721](https://github.com/jupyterlab/jupyterlab/pull/13721) ([@fcollonval](https://github.com/fcollonval))
+- Remove not needed `Completer.IRenderer.sanitizer` [#13700](https://github.com/jupyterlab/jupyterlab/pull/13700) ([@fcollonval](https://github.com/fcollonval))
+- Address some additional translation holes [#13696](https://github.com/jupyterlab/jupyterlab/pull/13696) ([@fcollonval](https://github.com/fcollonval))
+- Upgrades Xterm to v. 5 [#13685](https://github.com/jupyterlab/jupyterlab/pull/13685) ([@JasonWeill](https://github.com/JasonWeill))
+- Accessibility: role and aria-label [#13682](https://github.com/jupyterlab/jupyterlab/pull/13682) ([@brichet](https://github.com/brichet))
+- Contain the tabs within the tabbar (do not use translation transform) [#13671](https://github.com/jupyterlab/jupyterlab/pull/13671) ([@krassowski](https://github.com/krassowski))
+- Improve completer rendering performance [#13663](https://github.com/jupyterlab/jupyterlab/pull/13663) ([@krassowski](https://github.com/krassowski))
+- Expose `contentVisibility` widget hiding mode [#13652](https://github.com/jupyterlab/jupyterlab/pull/13652) ([@krassowski](https://github.com/krassowski))
+- Turn terminal links into anchors using xterm addon [#13645](https://github.com/jupyterlab/jupyterlab/pull/13645) ([@mgcth](https://github.com/mgcth))
+- Use tokens to extend CodeMirror editors [#13639](https://github.com/jupyterlab/jupyterlab/pull/13639) ([@fcollonval](https://github.com/fcollonval))
+- Add an input dialog for multiple selection [#13621](https://github.com/jupyterlab/jupyterlab/pull/13621) ([@brichet](https://github.com/brichet))
+- Filtering breakpoints on exception in debugger [#13601](https://github.com/jupyterlab/jupyterlab/pull/13601) ([@brichet](https://github.com/brichet))
+- Drop typestyle [#13584](https://github.com/jupyterlab/jupyterlab/pull/13584) ([@fcollonval](https://github.com/fcollonval))
+- Make file browser respond to focussed elements [#13577](https://github.com/jupyterlab/jupyterlab/pull/13577) ([@gabalafou](https://github.com/gabalafou))
+- Use more the contextual collaborative model attribute [#13564](https://github.com/jupyterlab/jupyterlab/pull/13564) ([@fcollonval](https://github.com/fcollonval))
+- Add copy and paste commands to terminal context menu [#13535](https://github.com/jupyterlab/jupyterlab/pull/13535) ([@krassowski](https://github.com/krassowski))
+- Set font families that were not specified. [#13533](https://github.com/jupyterlab/jupyterlab/pull/13533) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Sets whether the model is collaborative or not when registering its factory [#13526](https://github.com/jupyterlab/jupyterlab/pull/13526) ([@hbcarlos](https://github.com/hbcarlos))
+- RTC: Move user name to user panel [#13517](https://github.com/jupyterlab/jupyterlab/pull/13517) ([@martinRenou](https://github.com/martinRenou))
+- Sanitize notification message [#13510](https://github.com/jupyterlab/jupyterlab/pull/13510) ([@fcollonval](https://github.com/fcollonval))
+- jupyter_server_ydoc>=0.6.0,\<0.7.0 [#13492](https://github.com/jupyterlab/jupyterlab/pull/13492) ([@davidbrochart](https://github.com/davidbrochart))
+- Follow-on to events service [#13485](https://github.com/jupyterlab/jupyterlab/pull/13485) ([@afshin](https://github.com/afshin))
+- Copy variable in kernel from debugger panel [#13476](https://github.com/jupyterlab/jupyterlab/pull/13476) ([@brichet](https://github.com/brichet))
+- Move the toggle file browser logic to the widget [#13466](https://github.com/jupyterlab/jupyterlab/pull/13466) ([@brichet](https://github.com/brichet))
+- Check if `contentHeader` is not disposed before accessing widgets [#13453](https://github.com/jupyterlab/jupyterlab/pull/13453) ([@krassowski](https://github.com/krassowski))
+- Allows to pause the execution during debug [#13433](https://github.com/jupyterlab/jupyterlab/pull/13433) ([@brichet](https://github.com/brichet))
+- Fix propagating the sanitizer to the completer renderer [#13418](https://github.com/jupyterlab/jupyterlab/pull/13418) ([@fcollonval](https://github.com/fcollonval))
+- Move configuration to jupyter-server-ydoc [#13413](https://github.com/jupyterlab/jupyterlab/pull/13413) ([@davidbrochart](https://github.com/davidbrochart))
+- Added collaborative_document_save_delay trait [#13392](https://github.com/jupyterlab/jupyterlab/pull/13392) ([@davidbrochart](https://github.com/davidbrochart))
+- Extract @jupyterlab/shared-models to @jupyter-notebook/ydoc [#13389](https://github.com/jupyterlab/jupyterlab/pull/13389) ([@fcollonval](https://github.com/fcollonval))
+- Add a hover effect to plugin list entries [#13384](https://github.com/jupyterlab/jupyterlab/pull/13384) ([@krassowski](https://github.com/krassowski))
+- Add announcements [#13365](https://github.com/jupyterlab/jupyterlab/pull/13365) ([@fcollonval](https://github.com/fcollonval))
+- Add user configuration for additional schemes for the sanitizer plugin [#13341](https://github.com/jupyterlab/jupyterlab/pull/13341) ([@kostyafarber](https://github.com/kostyafarber))
+- Close search view on Escape [#13340](https://github.com/jupyterlab/jupyterlab/pull/13340) ([@krassowski](https://github.com/krassowski))
+- Store document info in the state not in a separate context map out of the document interface. [#13317](https://github.com/jupyterlab/jupyterlab/pull/13317) ([@fcollonval](https://github.com/fcollonval))
+- Set font sizes with css variables [#13305](https://github.com/jupyterlab/jupyterlab/pull/13305) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Reduce CI test flake due to kernel switching to busy [#13287](https://github.com/jupyterlab/jupyterlab/pull/13287) ([@krassowski](https://github.com/krassowski))
+- Do not run galata in `.ipynb_checkpoints` [#13286](https://github.com/jupyterlab/jupyterlab/pull/13286) ([@krassowski](https://github.com/krassowski))
+- Use settings icons for 6 plugins [#13284](https://github.com/jupyterlab/jupyterlab/pull/13284) ([@krassowski](https://github.com/krassowski))
+- Define file or activity icons color as static [#13279](https://github.com/jupyterlab/jupyterlab/pull/13279) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Link the background colors and the ui font colors in the relevant css. [#13276](https://github.com/jupyterlab/jupyterlab/pull/13276) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Ask confirmation when closing a document [#13267](https://github.com/jupyterlab/jupyterlab/pull/13267) ([@alec-kr](https://github.com/alec-kr))
+- Fix illegible white on yellow text of stacktrace in dark theme [#13249](https://github.com/jupyterlab/jupyterlab/pull/13249) ([@NikolayXHD](https://github.com/NikolayXHD))
+- Drop modelDB from code editor [#13247](https://github.com/jupyterlab/jupyterlab/pull/13247) ([@fcollonval](https://github.com/fcollonval))
+- Use file ID [#13246](https://github.com/jupyterlab/jupyterlab/pull/13246) ([@davidbrochart](https://github.com/davidbrochart))
+- Store original path as returned from contents API in the `Contents.IModel` [#13216](https://github.com/jupyterlab/jupyterlab/pull/13216) ([@krassowski](https://github.com/krassowski))
+- Relax doc provider API [#13214](https://github.com/jupyterlab/jupyterlab/pull/13214) ([@fcollonval](https://github.com/fcollonval))
+- Optimize text mimerenderer: ansi vs autolink  [#13202](https://github.com/jupyterlab/jupyterlab/pull/13202) ([@vidartf](https://github.com/vidartf))
+- Improve shared-models API [#13168](https://github.com/jupyterlab/jupyterlab/pull/13168) ([@fcollonval](https://github.com/fcollonval))
+- Adjust CSS styles degrading performance in Chromium browsers [#13159](https://github.com/jupyterlab/jupyterlab/pull/13159) ([@krassowski](https://github.com/krassowski))
+- Add a setter to TagWidget's parent [#13111](https://github.com/jupyterlab/jupyterlab/pull/13111) ([@brichet](https://github.com/brichet))
+- Collapse debugger panel when disabling debugger [#13088](https://github.com/jupyterlab/jupyterlab/pull/13088) ([@yanmulin](https://github.com/yanmulin))
+- Running panel - switch to SidePanel [#13074](https://github.com/jupyterlab/jupyterlab/pull/13074) ([@fcollonval](https://github.com/fcollonval))
+- Raise ceiling on jupyter_server dependency to \< 3 [#13068](https://github.com/jupyterlab/jupyterlab/pull/13068) ([@Zsailer](https://github.com/Zsailer))
+- Fix blurry icons in Launcher at 400% Zoom [#13057](https://github.com/jupyterlab/jupyterlab/pull/13057) ([@steff456](https://github.com/steff456))
+- Create a form to read and write the metadata of Notebook's cells [#13056](https://github.com/jupyterlab/jupyterlab/pull/13056) ([@brichet](https://github.com/brichet))
+- Avoids restoring widget in dock panel when first loading in 'single-document' mode [#13037](https://github.com/jupyterlab/jupyterlab/pull/13037) ([@brichet](https://github.com/brichet))
+- Add a title to the debugger sidebar widget [#12987](https://github.com/jupyterlab/jupyterlab/pull/12987) ([@jtpio](https://github.com/jtpio))
+- Support subprotocols in kernel restart [#12981](https://github.com/jupyterlab/jupyterlab/pull/12981) ([@davidbrochart](https://github.com/davidbrochart))
+- Increase translation coverage [#12971](https://github.com/jupyterlab/jupyterlab/pull/12971) ([@fcollonval](https://github.com/fcollonval))
+- Add notification queue and display using toast [#12959](https://github.com/jupyterlab/jupyterlab/pull/12959) ([@telamonian](https://github.com/telamonian))
+- Prompt for renaming at first manual save [#12953](https://github.com/jupyterlab/jupyterlab/pull/12953) ([@fcollonval](https://github.com/fcollonval))
+- User service [#12926](https://github.com/jupyterlab/jupyterlab/pull/12926) ([@hbcarlos](https://github.com/hbcarlos))
+- LSP follow-up [#12899](https://github.com/jupyterlab/jupyterlab/pull/12899) ([@trungleduc](https://github.com/trungleduc))
+- Set `Contents.ContentType` to string [#12875](https://github.com/jupyterlab/jupyterlab/pull/12875) ([@trungleduc](https://github.com/trungleduc))
+- Add more ways to copy the currently opened file [#12870](https://github.com/jupyterlab/jupyterlab/pull/12870) ([@peytondmurray](https://github.com/peytondmurray))
+- Add trustbydefault param to htmlviewer-extension [#12868](https://github.com/jupyterlab/jupyterlab/pull/12868) ([@oscar6echo](https://github.com/oscar6echo))
+- New extension manager [#12866](https://github.com/jupyterlab/jupyterlab/pull/12866) ([@fcollonval](https://github.com/fcollonval))
+- Moved theme Map and added API to use it from other dependencies [#12861](https://github.com/jupyterlab/jupyterlab/pull/12861) ([@JohanMabille](https://github.com/JohanMabille))
+- Run kernel on cell execution when no kernel [#12858](https://github.com/jupyterlab/jupyterlab/pull/12858) ([@a3626a](https://github.com/a3626a))
+- Removes info about meeting notes on Binder [#12847](https://github.com/jupyterlab/jupyterlab/pull/12847) ([@JasonWeill](https://github.com/JasonWeill))
+- Add an option to enable "fast checks" of the jupyter lab build. [#12844](https://github.com/jupyterlab/jupyterlab/pull/12844) ([@thetorpedodog](https://github.com/thetorpedodog))
+- feat: Add .webp filetype in docRegistry. [#12839](https://github.com/jupyterlab/jupyterlab/pull/12839) ([@yangql176](https://github.com/yangql176))
+- Adds version maintenance policy [#12829](https://github.com/jupyterlab/jupyterlab/pull/12829) ([@JasonWeill](https://github.com/JasonWeill))
+- Debugger: Make kernel source list react based [#12751](https://github.com/jupyterlab/jupyterlab/pull/12751) ([@vidartf](https://github.com/vidartf))
+- Optimize debugger editor `eachLine` loops [#12746](https://github.com/jupyterlab/jupyterlab/pull/12746) ([@vidartf](https://github.com/vidartf))
+- Add resize handle for scrolled cell outputs [#12740](https://github.com/jupyterlab/jupyterlab/pull/12740) ([@peytondmurray](https://github.com/peytondmurray))
+- Bump xtermjs to latest [#12715](https://github.com/jupyterlab/jupyterlab/pull/12715) ([@yuvipanda](https://github.com/yuvipanda))
+- Split the Document Manager extension into multiple plugins [#12701](https://github.com/jupyterlab/jupyterlab/pull/12701) ([@jtpio](https://github.com/jtpio))
+- Edit Gitpod configuration to be able to work on the documentation [#12697](https://github.com/jupyterlab/jupyterlab/pull/12697) ([@jtpio](https://github.com/jtpio))
+- Remove modeldb [#12695](https://github.com/jupyterlab/jupyterlab/pull/12695) ([@dmonad](https://github.com/dmonad))
+- Add events service [#12667](https://github.com/jupyterlab/jupyterlab/pull/12667) ([@afshin](https://github.com/afshin))
+- remove reference to blueprint.js in css [#12663](https://github.com/jupyterlab/jupyterlab/pull/12663) ([@fcollonval](https://github.com/fcollonval))
+- Make password inputs not give away how many characters were typed [#12659](https://github.com/jupyterlab/jupyterlab/pull/12659) ([@jasongrout](https://github.com/jasongrout))
+- Persistent side-by-side ratio setting [#12633](https://github.com/jupyterlab/jupyterlab/pull/12633) ([@echarles](https://github.com/echarles))
+- add "close all tabs" context action [#12620](https://github.com/jupyterlab/jupyterlab/pull/12620) ([@rursprung](https://github.com/rursprung))
 
-### Bugs fixed
+#### Bugs fixed
 
-- Use @jupyterlab/shared-models [#14583](https://github.com/jupyterlab/jupyterlab/pull/14583) ([@fcollonval](https://github.com/fcollonval))
-- Updates announcements to better conform to RFC atom standard. [#14480](https://github.com/jupyterlab/jupyterlab/pull/14480) ([@fcollonval](https://github.com/fcollonval))
-- Update jupyter ydoc [#14374](https://github.com/jupyterlab/jupyterlab/pull/14374) ([@hbcarlos](https://github.com/hbcarlos))
-- Decodes URI before adding it to the tab title [#14178](https://github.com/jupyterlab/jupyterlab/pull/14178) ([@hbcarlos](https://github.com/hbcarlos))
+- initialize \_replaceText to '' [#14433](https://github.com/jupyterlab/jupyterlab/pull/14433) ([@andrii-i](https://github.com/andrii-i))
+- Fix typo in CoffeeScript label [#14418](https://github.com/jupyterlab/jupyterlab/pull/14418) ([@krassowski](https://github.com/krassowski))
+- Change default indent unit to 4 [#14411](https://github.com/jupyterlab/jupyterlab/pull/14411) ([@fcollonval](https://github.com/fcollonval))
+- Console history cell has unexpected cursor [#14410](https://github.com/jupyterlab/jupyterlab/pull/14410) ([@fcollonval](https://github.com/fcollonval))
+- Only apply margin on `<select>` instead of using universal CSS selector [#14408](https://github.com/jupyterlab/jupyterlab/pull/14408) ([@fcollonval](https://github.com/fcollonval))
+- Improve scrolling for insert cell and run and advance [#14407](https://github.com/jupyterlab/jupyterlab/pull/14407) ([@fcollonval](https://github.com/fcollonval))
+- Remove Brainf... parser [#14406](https://github.com/jupyterlab/jupyterlab/pull/14406) ([@fcollonval](https://github.com/fcollonval))
+- Restore rectangular selection (CodeMirror 6 migration follow-up) [#14384](https://github.com/jupyterlab/jupyterlab/pull/14384) ([@krassowski](https://github.com/krassowski))
+- Make cell toolbar background transparent [#14382](https://github.com/jupyterlab/jupyterlab/pull/14382) ([@krassowski](https://github.com/krassowski))
+- Add signal when an item factory is added to the toolbar [#14376](https://github.com/jupyterlab/jupyterlab/pull/14376) ([@brichet](https://github.com/brichet))
+- Fix cursor when hovering a kernel in the Running tab [#14369](https://github.com/jupyterlab/jupyterlab/pull/14369) ([@yumyumqing](https://github.com/yumyumqing))
+- Fix search highlight in selection anchor of cell selection [#14356](https://github.com/jupyterlab/jupyterlab/pull/14356) ([@krassowski](https://github.com/krassowski))
+- Ensure that initial text is updated on subsequent searches [#14353](https://github.com/jupyterlab/jupyterlab/pull/14353) ([@krassowski](https://github.com/krassowski))
+- Fix "additional properties" settings editor validation error [#14346](https://github.com/jupyterlab/jupyterlab/pull/14346) ([@marthacryan](https://github.com/marthacryan))
+- Align notebook trust behaviour with trust in classic Notebook [#14345](https://github.com/jupyterlab/jupyterlab/pull/14345) ([@krassowski](https://github.com/krassowski))
+- Adds buffer, uses zoom cursors for cell output collapser (supersedes #14266) [#14344](https://github.com/jupyterlab/jupyterlab/pull/14344) ([@andrii-i](https://github.com/andrii-i))
+- Resolve jest binary path in test:debug [#14336](https://github.com/jupyterlab/jupyterlab/pull/14336) ([@fcollonval](https://github.com/fcollonval))
+- Fix failure when setting debugger variables filter [#14321](https://github.com/jupyterlab/jupyterlab/pull/14321) ([@afshin](https://github.com/afshin))
+- Upgrades @lumino/commands to 2.0.1, fixing emoji "enter" on macOS [#14305](https://github.com/jupyterlab/jupyterlab/pull/14305) ([@JasonWeill](https://github.com/JasonWeill))
+- Fix examples further to CodeMirror API change [#14293](https://github.com/jupyterlab/jupyterlab/pull/14293) ([@echarles](https://github.com/echarles))
+- Fix color contrast of gutter line numbers in code mirror [#14269](https://github.com/jupyterlab/jupyterlab/pull/14269) ([@andrii-i](https://github.com/andrii-i))
+- Exclude .yarn cache from the dist [#14242](https://github.com/jupyterlab/jupyterlab/pull/14242) ([@martinRenou](https://github.com/martinRenou))
 - Fix cursor placement in stdin history search and navigation [#14225](https://github.com/jupyterlab/jupyterlab/pull/14225) ([@krassowski](https://github.com/krassowski))
+- Fix save as without changing the file name [#14212](https://github.com/jupyterlab/jupyterlab/pull/14212) ([@hbcarlos](https://github.com/hbcarlos))
+- Update jupyter-lsp and associated schema [#14208](https://github.com/jupyterlab/jupyterlab/pull/14208) ([@fcollonval](https://github.com/fcollonval))
+- Suppresses header check inside frontmatter [#14203](https://github.com/jupyterlab/jupyterlab/pull/14203) ([@JasonWeill](https://github.com/JasonWeill))
+- CodeMirror packages has singletons [#14199](https://github.com/jupyterlab/jupyterlab/pull/14199) ([@fcollonval](https://github.com/fcollonval))
+- Make codemirror state and view packages singleton [#14183](https://github.com/jupyterlab/jupyterlab/pull/14183) ([@fcollonval](https://github.com/fcollonval))
+- Fix save as in collaborative mode [#14182](https://github.com/jupyterlab/jupyterlab/pull/14182) ([@hbcarlos](https://github.com/hbcarlos))
+- Decodes URI before adding it to the tab title [#14178](https://github.com/jupyterlab/jupyterlab/pull/14178) ([@hbcarlos](https://github.com/hbcarlos))
+- Do not update running list when hidden [#14172](https://github.com/jupyterlab/jupyterlab/pull/14172) ([@krassowski](https://github.com/krassowski))
+- Keep extension manager panel sizes when pagination changes [#14171](https://github.com/jupyterlab/jupyterlab/pull/14171) ([@FoSuCloud](https://github.com/FoSuCloud))
+- Fix link colors #14084 (Previous PR #14129) [#14159](https://github.com/jupyterlab/jupyterlab/pull/14159) ([@damiend97](https://github.com/damiend97))
+- Fix create-package [#14156](https://github.com/jupyterlab/jupyterlab/pull/14156) ([@fcollonval](https://github.com/fcollonval))
+- Fix getting current without activation for labels and captions [#14152](https://github.com/jupyterlab/jupyterlab/pull/14152) ([@fcollonval](https://github.com/fcollonval))
+- bug: Add fallback value for undefined className prop in GroupItem component [#14140](https://github.com/jupyterlab/jupyterlab/pull/14140) ([@zrottman](https://github.com/zrottman))
+- Fixes contextual help attachment logic [#14120](https://github.com/jupyterlab/jupyterlab/pull/14120) ([@JasonWeill](https://github.com/JasonWeill))
+- Hide `<code>` block in the UI when there is an error installing any extension.  [#14095](https://github.com/jupyterlab/jupyterlab/pull/14095) ([@kamalika0363](https://github.com/kamalika0363))
+- Search boxes: switch to `defaultValue`, add a test for typing [#14085](https://github.com/jupyterlab/jupyterlab/pull/14085) ([@krassowski](https://github.com/krassowski))
+- Fix extension manager button background color [#14079](https://github.com/jupyterlab/jupyterlab/pull/14079) ([@jtpio](https://github.com/jtpio))
+- Fix code/content/ui font-size change [#14077](https://github.com/jupyterlab/jupyterlab/pull/14077) ([@FoSuCloud](https://github.com/FoSuCloud))
+- Styling fixes for rjsm Settings Editor: remove accordions, rework "Restore to defaults" button, add placeholder [#14074](https://github.com/jupyterlab/jupyterlab/pull/14074) ([@andrii-i](https://github.com/andrii-i))
+- Property inspector styling fixes [#14069](https://github.com/jupyterlab/jupyterlab/pull/14069) ([@JasonWeill](https://github.com/JasonWeill))
+- Debugger: check `hasCommand` before calling `notifyCommandChanged` [#14066](https://github.com/jupyterlab/jupyterlab/pull/14066) ([@jtpio](https://github.com/jtpio))
+- Fix non-document wide undo stack [#14063](https://github.com/jupyterlab/jupyterlab/pull/14063) ([@fcollonval](https://github.com/fcollonval))
+- use singleton boolean type for codemirror `lineWiseCopyCut` setting [#14055](https://github.com/jupyterlab/jupyterlab/pull/14055) ([@bollwyvl](https://github.com/bollwyvl))
+- Fix attachments [#14052](https://github.com/jupyterlab/jupyterlab/pull/14052) ([@hbcarlos](https://github.com/hbcarlos))
+- Minor trust improvements [#14039](https://github.com/jupyterlab/jupyterlab/pull/14039) ([@krassowski](https://github.com/krassowski))
+- Adds placeholder when TOC is empty [#14024](https://github.com/jupyterlab/jupyterlab/pull/14024) ([@JasonWeill](https://github.com/JasonWeill))
+- Galata config helper should not set dev_mode [#14012](https://github.com/jupyterlab/jupyterlab/pull/14012) ([@fcollonval](https://github.com/fcollonval))
+- Restore using `runmenu:restart-an-run-all` [#14000](https://github.com/jupyterlab/jupyterlab/pull/14000) ([@fcollonval](https://github.com/fcollonval))
+- Fix galata update job [#13999](https://github.com/jupyterlab/jupyterlab/pull/13999) ([@fcollonval](https://github.com/fcollonval))
+- Use node 18 for benchmark [#13982](https://github.com/jupyterlab/jupyterlab/pull/13982) ([@fcollonval](https://github.com/fcollonval))
+- Hides cell toolbar when cell is collapsed [#13964](https://github.com/jupyterlab/jupyterlab/pull/13964) ([@JasonWeill](https://github.com/JasonWeill))
+- Dispose properly objects [#13960](https://github.com/jupyterlab/jupyterlab/pull/13960) ([@fcollonval](https://github.com/fcollonval))
+- Fixes toolbar button for Restart Kernel and Run All [#13939](https://github.com/jupyterlab/jupyterlab/pull/13939) ([@JasonWeill](https://github.com/JasonWeill))
+- Fix LSP adapter errors on tab close [#13918](https://github.com/jupyterlab/jupyterlab/pull/13918) ([@afshin](https://github.com/afshin))
+- Hide the cell toolbar on mobile / screens less than 760px wide to prevent cell obstruction [#13896](https://github.com/jupyterlab/jupyterlab/pull/13896) ([@andrii-i](https://github.com/andrii-i))
+- Define colour and background for filebrowser edit field [#13895](https://github.com/jupyterlab/jupyterlab/pull/13895) ([@krassowski](https://github.com/krassowski))
+- Create a unified editor search provider [#13884](https://github.com/jupyterlab/jupyterlab/pull/13884) ([@krassowski](https://github.com/krassowski))
+- Fix searching backwards in notebook [#13883](https://github.com/jupyterlab/jupyterlab/pull/13883) ([@krassowski](https://github.com/krassowski))
+- Waits for panel reveal before measuring first cell for cell toolbar  [#13876](https://github.com/jupyterlab/jupyterlab/pull/13876) ([@JasonWeill](https://github.com/JasonWeill))
+- Fixes notebook's metadata in collaborative mode [#13868](https://github.com/jupyterlab/jupyterlab/pull/13868) ([@hbcarlos](https://github.com/hbcarlos))
+- Use local paths instead of driveName:path in the shared model [#13866](https://github.com/jupyterlab/jupyterlab/pull/13866) ([@hbcarlos](https://github.com/hbcarlos))
+- Updates jupyter_server_ydoc [#13854](https://github.com/jupyterlab/jupyterlab/pull/13854) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix undefined css variables [#13852](https://github.com/jupyterlab/jupyterlab/pull/13852) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Suppresses cell toolbar on collapsed input cells [#13847](https://github.com/jupyterlab/jupyterlab/pull/13847) ([@JasonWeill](https://github.com/JasonWeill))
+- Removes nested A tag from extensionmanager code [#13845](https://github.com/jupyterlab/jupyterlab/pull/13845) ([@JasonWeill](https://github.com/JasonWeill))
+- Reset execution indicator state when kernel restarts [#13832](https://github.com/jupyterlab/jupyterlab/pull/13832) ([@krassowski](https://github.com/krassowski))
+- Fix starting search with selected text (if any) [#13802](https://github.com/jupyterlab/jupyterlab/pull/13802) ([@krassowski](https://github.com/krassowski))
+- Updates to the kernel panel of the "running" sidebar [#13792](https://github.com/jupyterlab/jupyterlab/pull/13792) ([@afshin](https://github.com/afshin))
+- Fix `preferred_dir` for examples [#13788](https://github.com/jupyterlab/jupyterlab/pull/13788) ([@fcollonval](https://github.com/fcollonval))
+- Bump canvas to version with nodejs 18 binaries [#13783](https://github.com/jupyterlab/jupyterlab/pull/13783) ([@fcollonval](https://github.com/fcollonval))
+- Explain why cell model may be missing in cell toolbar [#13763](https://github.com/jupyterlab/jupyterlab/pull/13763) ([@krassowski](https://github.com/krassowski))
+- Fix handling of `settingEditorType` [#13761](https://github.com/jupyterlab/jupyterlab/pull/13761) ([@jtpio](https://github.com/jtpio))
+- Updates jupyter_ydoc [#13735](https://github.com/jupyterlab/jupyterlab/pull/13735) ([@hbcarlos](https://github.com/hbcarlos))
+- Wrap kernel message binary buffers in DataView [#13730](https://github.com/jupyterlab/jupyterlab/pull/13730) ([@davidbrochart](https://github.com/davidbrochart))
+- Upgrades Python to 3.10, Node to 18 [#13722](https://github.com/jupyterlab/jupyterlab/pull/13722) ([@JasonWeill](https://github.com/JasonWeill))
+- Fix CodeQL warning [#13712](https://github.com/jupyterlab/jupyterlab/pull/13712) ([@fcollonval](https://github.com/fcollonval))
+- Faster rendering of the debugger tree [#13707](https://github.com/jupyterlab/jupyterlab/pull/13707) ([@krassowski](https://github.com/krassowski))
+- Fix execution indicator in RTC mode [#13693](https://github.com/jupyterlab/jupyterlab/pull/13693) ([@trungleduc](https://github.com/trungleduc))
+- Update plugin ID of hub extension [#13688](https://github.com/jupyterlab/jupyterlab/pull/13688) ([@mctoohey](https://github.com/mctoohey))
+- Fix contrast on the plugin list, add screenshots to catch regressions [#13661](https://github.com/jupyterlab/jupyterlab/pull/13661) ([@krassowski](https://github.com/krassowski))
+- Fix `replaceSelection`, add unit test [#13657](https://github.com/jupyterlab/jupyterlab/pull/13657) ([@krassowski](https://github.com/krassowski))
+- Fix `RunningTerminal` access before initialization [#13655](https://github.com/jupyterlab/jupyterlab/pull/13655) ([@krassowski](https://github.com/krassowski))
+- Write the browser open files for test [#13634](https://github.com/jupyterlab/jupyterlab/pull/13634) ([@fcollonval](https://github.com/fcollonval))
+- Fix select wrapping in inputDialog [#13622](https://github.com/jupyterlab/jupyterlab/pull/13622) ([@brichet](https://github.com/brichet))
+- Does not prevent default behavior when shift-clicking [#13616](https://github.com/jupyterlab/jupyterlab/pull/13616) ([@jmk89](https://github.com/jmk89))
+- Fix issue #13569: `source_hidden` not effective. [#13611](https://github.com/jupyterlab/jupyterlab/pull/13611) ([@yczhangsjtu](https://github.com/yczhangsjtu))
+- Add the `scaleFactor` value from the embed options when creating the PNG representation for a Vega-based chart [#13610](https://github.com/jupyterlab/jupyterlab/pull/13610) ([@joaopalmeiro](https://github.com/joaopalmeiro))
+- use jupyter_config_dir instead of config_path\[0\] for workspaces, settings [#13589](https://github.com/jupyterlab/jupyterlab/pull/13589) ([@minrk](https://github.com/minrk))
+- Revert change to active menu bar item [#13576](https://github.com/jupyterlab/jupyterlab/pull/13576) ([@fcollonval](https://github.com/fcollonval))
+- Restores the appearance of the settingeditor's input focus [#13554](https://github.com/jupyterlab/jupyterlab/pull/13554) ([@brichet](https://github.com/brichet))
+- Fix a wrong argument when calling 'renderMimeVariable' [#13531](https://github.com/jupyterlab/jupyterlab/pull/13531) ([@brichet](https://github.com/brichet))
+- Set corrections to icons and switch colors [#13500](https://github.com/jupyterlab/jupyterlab/pull/13500) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- Default `IDocumentProviderFactory.IOptions` generic to ISharedDocument [#13490](https://github.com/jupyterlab/jupyterlab/pull/13490) ([@jtpio](https://github.com/jtpio))
+- Use same key for saving user info in local store [#13482](https://github.com/jupyterlab/jupyterlab/pull/13482) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix syntax highlighting for JSON viewer in Jupyter Notebook [#13470](https://github.com/jupyterlab/jupyterlab/pull/13470) ([@kostyafarber](https://github.com/kostyafarber))
+- Set fallback values for icons colors. [#13468](https://github.com/jupyterlab/jupyterlab/pull/13468) ([@HaudinFlorence](https://github.com/HaudinFlorence))
+- enable document model specific collaboration [#13458](https://github.com/jupyterlab/jupyterlab/pull/13458) ([@dlqqq](https://github.com/dlqqq))
+- Fix token based completions, restore deduplication, follow up on completer refactor [#13454](https://github.com/jupyterlab/jupyterlab/pull/13454) ([@krassowski](https://github.com/krassowski))
+- Fix `FileEditor.ready` [#13426](https://github.com/jupyterlab/jupyterlab/pull/13426) ([@krassowski](https://github.com/krassowski))
+- Make focus visible (mostly CSS) [#13415](https://github.com/jupyterlab/jupyterlab/pull/13415) ([@gabalafou](https://github.com/gabalafou))
+- Remove metadata entries [#13371](https://github.com/jupyterlab/jupyterlab/pull/13371) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix dirty propagation from shared model [#13368](https://github.com/jupyterlab/jupyterlab/pull/13368) ([@fcollonval](https://github.com/fcollonval))
+- Correct `dirty` handling in notebook model [#13358](https://github.com/jupyterlab/jupyterlab/pull/13358) ([@fcollonval](https://github.com/fcollonval))
+- Handle missing user service [#13353](https://github.com/jupyterlab/jupyterlab/pull/13353) ([@fcollonval](https://github.com/fcollonval))
+- Avoids use of @deprecated to refer to a parameter [#13309](https://github.com/jupyterlab/jupyterlab/pull/13309) ([@JasonWeill](https://github.com/JasonWeill))
+- Updates JSONEditor's source only when there is an active cell or an active notebook panel [#13308](https://github.com/jupyterlab/jupyterlab/pull/13308) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix border-radius does not follow css variable [#13289](https://github.com/jupyterlab/jupyterlab/pull/13289) ([@vthinkxie](https://github.com/vthinkxie))
+- Fix notebook trust in RTC [#13273](https://github.com/jupyterlab/jupyterlab/pull/13273) ([@davidbrochart](https://github.com/davidbrochart))
+- Set `isUntitled` to false on document path changes [#13268](https://github.com/jupyterlab/jupyterlab/pull/13268) ([@fcollonval](https://github.com/fcollonval))
+- Don't dispose the notebook metadata editor on active cell change [#13259](https://github.com/jupyterlab/jupyterlab/pull/13259) ([@fcollonval](https://github.com/fcollonval))
+- Remove some unused CSS styles and fix icon alignment in plugin list [#13255](https://github.com/jupyterlab/jupyterlab/pull/13255) ([@krassowski](https://github.com/krassowski))
+- Do not show side panel scrollbar when not needed [#13253](https://github.com/jupyterlab/jupyterlab/pull/13253) ([@krassowski](https://github.com/krassowski))
+- Added scroll to Running Panel [#13241](https://github.com/jupyterlab/jupyterlab/pull/13241) ([@kulsoomzahra](https://github.com/kulsoomzahra))
+- Removes triggering an event when replacing pasted text [#13230](https://github.com/jupyterlab/jupyterlab/pull/13230) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix cell deletion error message [#13201](https://github.com/jupyterlab/jupyterlab/pull/13201) ([@trungleduc](https://github.com/trungleduc))
+- Use keystroke format consistent with menus [#13200](https://github.com/jupyterlab/jupyterlab/pull/13200) ([@fcollonval](https://github.com/fcollonval))
+- Add a title to the RTC panel [#13196](https://github.com/jupyterlab/jupyterlab/pull/13196) ([@jtpio](https://github.com/jtpio))
+- Fix removing out of view cells [#13194](https://github.com/jupyterlab/jupyterlab/pull/13194) ([@fcollonval](https://github.com/fcollonval))
+- Fix JSON viewer syntax highlighting [#13183](https://github.com/jupyterlab/jupyterlab/pull/13183) ([@jtpio](https://github.com/jtpio))
+- Always show tooltip in hover box even if edges are out of view [#13161](https://github.com/jupyterlab/jupyterlab/pull/13161) ([@krassowski](https://github.com/krassowski))
+- Allow empty notebook [#13141](https://github.com/jupyterlab/jupyterlab/pull/13141) ([@hbcarlos](https://github.com/hbcarlos))
+- Stop observing size disposed widget [#13137](https://github.com/jupyterlab/jupyterlab/pull/13137) ([@fcollonval](https://github.com/fcollonval))
+- Resolve core_path before calling nodejs [#13126](https://github.com/jupyterlab/jupyterlab/pull/13126) ([@fcollonval](https://github.com/fcollonval))
+- Pin jupyter_ydoc to 0.2 [#13124](https://github.com/jupyterlab/jupyterlab/pull/13124) ([@hbcarlos](https://github.com/hbcarlos))
+- Avoid menus overflowing in small screens [#13109](https://github.com/jupyterlab/jupyterlab/pull/13109) ([@steff456](https://github.com/steff456))
+- Fallback to local yarn version if jlpm does not exist [#13104](https://github.com/jupyterlab/jupyterlab/pull/13104) ([@fcollonval](https://github.com/fcollonval))
+- Switch back to `display` to hide tabs [#13103](https://github.com/jupyterlab/jupyterlab/pull/13103) ([@fcollonval](https://github.com/fcollonval))
+- Preserve kernel icon aspect ratio [#13090](https://github.com/jupyterlab/jupyterlab/pull/13090) ([@fcollonval](https://github.com/fcollonval))
+- Added mimeType for .webp image files [#13066](https://github.com/jupyterlab/jupyterlab/pull/13066) ([@alec-kr](https://github.com/alec-kr))
+- Fix cell toolbar layout [#13059](https://github.com/jupyterlab/jupyterlab/pull/13059) ([@kulsoomzahra](https://github.com/kulsoomzahra))
+- Keep completer visible when anchor is horizontally scrolled out of view [#13046](https://github.com/jupyterlab/jupyterlab/pull/13046) ([@krassowski](https://github.com/krassowski))
+- Reorder of webpackConfig merge [#13040](https://github.com/jupyterlab/jupyterlab/pull/13040) ([@matthewturk](https://github.com/matthewturk))
+- Update Python icon to be PSF Trademark compliant [#13035](https://github.com/jupyterlab/jupyterlab/pull/13035) ([@ajbozarth](https://github.com/ajbozarth))
+- Support stateStorage for API calls [#13015](https://github.com/jupyterlab/jupyterlab/pull/13015) ([@fcollonval](https://github.com/fcollonval))
+- Conditional call to waitIsReady in reload [#13011](https://github.com/jupyterlab/jupyterlab/pull/13011) ([@fcollonval](https://github.com/fcollonval))
+- update xterm.js dependency [#12974](https://github.com/jupyterlab/jupyterlab/pull/12974) ([@athornton](https://github.com/athornton))
+- Add scrolling to `debugger` variable renderer [#12968](https://github.com/jupyterlab/jupyterlab/pull/12968) ([@firai](https://github.com/firai))
+- Fix resizing and selection of debugger variable explorer grid [#12943](https://github.com/jupyterlab/jupyterlab/pull/12943) ([@firai](https://github.com/firai))
+- Only show "Shut Down Kernel" if kernel is running [#12919](https://github.com/jupyterlab/jupyterlab/pull/12919) ([@krassowski](https://github.com/krassowski))
+- Bump jupyter_server_ydoc>=0.1.9 [#12876](https://github.com/jupyterlab/jupyterlab/pull/12876) ([@davidbrochart](https://github.com/davidbrochart))
+- Fix progress bar not working after uploading multiple files finished [#12871](https://github.com/jupyterlab/jupyterlab/pull/12871) ([@hsuanxyz](https://github.com/hsuanxyz))
+- Fix kernel in the statusbar does not match the actual [#12865](https://github.com/jupyterlab/jupyterlab/pull/12865) ([@hsuanxyz](https://github.com/hsuanxyz))
+- Store Y updates [#12852](https://github.com/jupyterlab/jupyterlab/pull/12852) ([@davidbrochart](https://github.com/davidbrochart))
+- Fixes renaming files from title while using a custom drive [#12849](https://github.com/jupyterlab/jupyterlab/pull/12849) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix CI failures [#12843](https://github.com/jupyterlab/jupyterlab/pull/12843) ([@fcollonval](https://github.com/fcollonval))
+- Adjust css to not leave trace of deleted widgets [#12838](https://github.com/jupyterlab/jupyterlab/pull/12838) ([@thomasaarholt](https://github.com/thomasaarholt))
+- Remove drive prefix from the file path when creating the new path [#12824](https://github.com/jupyterlab/jupyterlab/pull/12824) ([@hbcarlos](https://github.com/hbcarlos))
+- Use path to extract `tmpPath` [#12823](https://github.com/jupyterlab/jupyterlab/pull/12823) ([@fcollonval](https://github.com/fcollonval))
+- Robuster UI tests [#12821](https://github.com/jupyterlab/jupyterlab/pull/12821) ([@fcollonval](https://github.com/fcollonval))
+- Fix workspace URL while cloning a workspace [#12794](https://github.com/jupyterlab/jupyterlab/pull/12794) ([@aditya211935](https://github.com/aditya211935))
+- update tab name after file rename [#12791](https://github.com/jupyterlab/jupyterlab/pull/12791) ([@RobbyPratl](https://github.com/RobbyPratl))
+- Update base.css [#12783](https://github.com/jupyterlab/jupyterlab/pull/12783) ([@siddartha-10](https://github.com/siddartha-10))
+- Updates ydoc [#12779](https://github.com/jupyterlab/jupyterlab/pull/12779) ([@hbcarlos](https://github.com/hbcarlos))
+- Debugger: Fix CSS for variables inspecting [#12749](https://github.com/jupyterlab/jupyterlab/pull/12749) ([@martinRenou](https://github.com/martinRenou))
+- Fix staging/yarn.lock registry [#12742](https://github.com/jupyterlab/jupyterlab/pull/12742) ([@vidartf](https://github.com/vidartf))
+- Set focus when active cell changes only from mouse click [#12735](https://github.com/jupyterlab/jupyterlab/pull/12735) ([@fcollonval](https://github.com/fcollonval))
+- Translate "Default: " and "Remove" in custom fields [#12732](https://github.com/jupyterlab/jupyterlab/pull/12732) ([@krassowski](https://github.com/krassowski))
+- Fix cell toolbar overlap in side-by-side render mode [#12710](https://github.com/jupyterlab/jupyterlab/pull/12710) ([@peytondmurray](https://github.com/peytondmurray))
+- Split the Document Manager extension into multiple plugins [#12701](https://github.com/jupyterlab/jupyterlab/pull/12701) ([@jtpio](https://github.com/jtpio))
+- Fix arrow position on unrendered markdown cell [#12650](https://github.com/jupyterlab/jupyterlab/pull/12650) ([@fcollonval](https://github.com/fcollonval))
+- Fix kernel protocol serialization [#12619](https://github.com/jupyterlab/jupyterlab/pull/12619) ([@davidbrochart](https://github.com/davidbrochart))
+- Break loop activeCell -> activeHeading [#12612](https://github.com/jupyterlab/jupyterlab/pull/12612) ([@fcollonval](https://github.com/fcollonval))
 
-### Maintenance and upkeep improvements
+#### Maintenance and upkeep improvements
+
+- Bump lumino to 2.1.1 [#14447](https://github.com/jupyterlab/jupyterlab/pull/14447) ([@fcollonval](https://github.com/fcollonval))
+- Update jupyter-lsp schema [#14430](https://github.com/jupyterlab/jupyterlab/pull/14430) ([@krassowski](https://github.com/krassowski))
+- Fix documentation build on CI [#14423](https://github.com/jupyterlab/jupyterlab/pull/14423) ([@jtpio](https://github.com/jtpio))
+- Fix CI: remove/update broken docs links [#14414](https://github.com/jupyterlab/jupyterlab/pull/14414) ([@krassowski](https://github.com/krassowski))
+- Upgrade all `@codemirror` and `@lezer` packages to latest [#14413](https://github.com/jupyterlab/jupyterlab/pull/14413) ([@krassowski](https://github.com/krassowski))
+- Fix run-cells snapshot [#14388](https://github.com/jupyterlab/jupyterlab/pull/14388) ([@krassowski](https://github.com/krassowski))
+- Do not override snapshots between update runs  [#14381](https://github.com/jupyterlab/jupyterlab/pull/14381) ([@krassowski](https://github.com/krassowski))
+- Upgrade dependencies [#14339](https://github.com/jupyterlab/jupyterlab/pull/14339) ([@fcollonval](https://github.com/fcollonval))
+- Upgrade @jupyter/ydoc [#14334](https://github.com/jupyterlab/jupyterlab/pull/14334) ([@fcollonval](https://github.com/fcollonval))
+- Update to Playwright 1.32 [#14323](https://github.com/jupyterlab/jupyterlab/pull/14323) ([@jtpio](https://github.com/jtpio))
+- Bump ipython from 8.11.0 to 8.12.0 [#14316](https://github.com/jupyterlab/jupyterlab/pull/14316) ([@dependabot](https://github.com/dependabot))
+- Bump ipywidgets from 8.0.4 to 8.0.6 [#14315](https://github.com/jupyterlab/jupyterlab/pull/14315) ([@dependabot](https://github.com/dependabot))
+- Bump jupyterlab-language-pack-zh-cn from 3.6.post0 to 3.6.post1 [#14314](https://github.com/jupyterlab/jupyterlab/pull/14314) ([@dependabot](https://github.com/dependabot))
+- Bump black\[jupyter\] from 23.1.0 to 23.3.0 [#14313](https://github.com/jupyterlab/jupyterlab/pull/14313) ([@dependabot](https://github.com/dependabot))
+- Bump ruff from 0.0.255 to 0.0.260 [#14312](https://github.com/jupyterlab/jupyterlab/pull/14312) ([@dependabot](https://github.com/dependabot))
+- Bump actions/stale from 7 to 8 [#14311](https://github.com/jupyterlab/jupyterlab/pull/14311) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.7.0 to 35.7.8 [#14310](https://github.com/jupyterlab/jupyterlab/pull/14310) ([@dependabot](https://github.com/dependabot))
+- Be tolerant on map changes in UI test [#14302](https://github.com/jupyterlab/jupyterlab/pull/14302) ([@fcollonval](https://github.com/fcollonval))
+- Add context for translatable strings to avoid clash with 3.x [#14297](https://github.com/jupyterlab/jupyterlab/pull/14297) ([@fcollonval](https://github.com/fcollonval))
+- Add missing lumino package as singleton [#14287](https://github.com/jupyterlab/jupyterlab/pull/14287) ([@fcollonval](https://github.com/fcollonval))
+- Add `--skip-dev-build`, use with `yarn` invocation to fix binder [#14273](https://github.com/jupyterlab/jupyterlab/pull/14273) ([@bollwyvl](https://github.com/bollwyvl))
+- Fix failing `check_links` job [#14243](https://github.com/jupyterlab/jupyterlab/pull/14243) ([@krassowski](https://github.com/krassowski))
+- Enforce a minimal set of CSS selector complexity rules [#14238](https://github.com/jupyterlab/jupyterlab/pull/14238) ([@krassowski](https://github.com/krassowski))
+- Specify peerDependencies to remove yarn warning [#14230](https://github.com/jupyterlab/jupyterlab/pull/14230) ([@fcollonval](https://github.com/fcollonval))
+- Update ESLint dependencies [#14216](https://github.com/jupyterlab/jupyterlab/pull/14216) ([@jtpio](https://github.com/jtpio))
+- Update to TypeScript 5 final [#14215](https://github.com/jupyterlab/jupyterlab/pull/14215) ([@jtpio](https://github.com/jtpio))
+- Fix 'completer with doc panel' UI test [#14214](https://github.com/jupyterlab/jupyterlab/pull/14214) ([@brichet](https://github.com/brichet))
+- Upgrade to lumino 2 final [#14201](https://github.com/jupyterlab/jupyterlab/pull/14201) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 35.6.1 to 35.7.0 [#14191](https://github.com/jupyterlab/jupyterlab/pull/14191) ([@dependabot](https://github.com/dependabot))
+- Update `webpack` dependencies [#14189](https://github.com/jupyterlab/jupyterlab/pull/14189) ([@jtpio](https://github.com/jtpio))
+- Remove shebang from non-executable script node-version-check.js [#14181](https://github.com/jupyterlab/jupyterlab/pull/14181) ([@frenzymadness](https://github.com/frenzymadness))
+- Remove deprecated code [#14160](https://github.com/jupyterlab/jupyterlab/pull/14160) ([@fcollonval](https://github.com/fcollonval))
+- Clean up events service types in preparation for release [#14149](https://github.com/jupyterlab/jupyterlab/pull/14149) ([@afshin](https://github.com/afshin))
+- Update to Lumino 2 RC 1 [#14146](https://github.com/jupyterlab/jupyterlab/pull/14146) ([@jtpio](https://github.com/jtpio))
+- Switch to monthly dependabot update [#14144](https://github.com/jupyterlab/jupyterlab/pull/14144) ([@fcollonval](https://github.com/fcollonval))
+- Bump ruff from 0.0.253 to 0.0.254 [#14137](https://github.com/jupyterlab/jupyterlab/pull/14137) ([@dependabot](https://github.com/dependabot))
+- Bump ipython from 8.10.0 to 8.11.0 [#14136](https://github.com/jupyterlab/jupyterlab/pull/14136) ([@dependabot](https://github.com/dependabot))
+- Bump matplotlib from 3.7.0 to 3.7.1 [#14135](https://github.com/jupyterlab/jupyterlab/pull/14135) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.6.0 to 35.6.1 [#14134](https://github.com/jupyterlab/jupyterlab/pull/14134) ([@dependabot](https://github.com/dependabot))
+- Use upstream `Stream` instead of downstream stream [#14123](https://github.com/jupyterlab/jupyterlab/pull/14123) ([@afshin](https://github.com/afshin))
+- Bump vega from 5.22.1 to 5.23.0 [#14119](https://github.com/jupyterlab/jupyterlab/pull/14119) ([@dependabot](https://github.com/dependabot))
+- Update to TypeScript 5.0 RC [#14114](https://github.com/jupyterlab/jupyterlab/pull/14114) ([@jtpio](https://github.com/jtpio))
+- Bump ruff from 0.0.249 to 0.0.252 [#14100](https://github.com/jupyterlab/jupyterlab/pull/14100) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.5.5 to 35.6.0 [#14099](https://github.com/jupyterlab/jupyterlab/pull/14099) ([@dependabot](https://github.com/dependabot))
+- Bump to Lumino 2.0.0-rc.0 [#14096](https://github.com/jupyterlab/jupyterlab/pull/14096) ([@fcollonval](https://github.com/fcollonval))
+- Enable `--extensions-in-dev-mode` on Gitpod [#14076](https://github.com/jupyterlab/jupyterlab/pull/14076) ([@jtpio](https://github.com/jtpio))
+- Update to Playwright 1.31.0 [#14067](https://github.com/jupyterlab/jupyterlab/pull/14067) ([@jtpio](https://github.com/jtpio))
+- Install collaboration package on binder [#14061](https://github.com/jupyterlab/jupyterlab/pull/14061) ([@fcollonval](https://github.com/fcollonval))
+- Bump scipy from 1.10.0 to 1.10.1 [#14051](https://github.com/jupyterlab/jupyterlab/pull/14051) ([@dependabot](https://github.com/dependabot))
+- Bump matplotlib from 3.6.3 to 3.7.0 [#14050](https://github.com/jupyterlab/jupyterlab/pull/14050) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.5.2 to 35.5.5 [#14048](https://github.com/jupyterlab/jupyterlab/pull/14048) ([@dependabot](https://github.com/dependabot))
+- Increases timeout  [#14045](https://github.com/jupyterlab/jupyterlab/pull/14045) ([@brichet](https://github.com/brichet))
+- Fix JupyterLab command on Gitpod [#14043](https://github.com/jupyterlab/jupyterlab/pull/14043) ([@jtpio](https://github.com/jtpio))
+- Get dev binder up and running again [#14038](https://github.com/jupyterlab/jupyterlab/pull/14038) ([@bollwyvl](https://github.com/bollwyvl))
+- Lazy load `@lumino/datagrid` [#14037](https://github.com/jupyterlab/jupyterlab/pull/14037) ([@bollwyvl](https://github.com/bollwyvl))
+- Update react-json-tree, replace react-highlighter with react-highlight-words [#14034](https://github.com/jupyterlab/jupyterlab/pull/14034) ([@bollwyvl](https://github.com/bollwyvl))
+- Increase galata update timeouts [#13985](https://github.com/jupyterlab/jupyterlab/pull/13985) ([@krassowski](https://github.com/krassowski))
+- Use node 18 for benchmark [#13982](https://github.com/jupyterlab/jupyterlab/pull/13982) ([@fcollonval](https://github.com/fcollonval))
+- Add back `@types/react` as a dependency of `@jupyterlab/apputils` [#13981](https://github.com/jupyterlab/jupyterlab/pull/13981) ([@jtpio](https://github.com/jtpio))
+- Bump ruff from 0.0.242 to 0.0.246 [#13980](https://github.com/jupyterlab/jupyterlab/pull/13980) ([@dependabot](https://github.com/dependabot))
+- Bump jupyterlab-language-pack-zh-cn from 3.5.post4 to 3.6.post0 [#13979](https://github.com/jupyterlab/jupyterlab/pull/13979) ([@dependabot](https://github.com/dependabot))
+- Bump ipython from 8.9.0 to 8.10.0 [#13978](https://github.com/jupyterlab/jupyterlab/pull/13978) ([@dependabot](https://github.com/dependabot))
+- Bump actions/cache from 2 to 3 [#13977](https://github.com/jupyterlab/jupyterlab/pull/13977) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.5.0 to 35.5.2 [#13976](https://github.com/jupyterlab/jupyterlab/pull/13976) ([@dependabot](https://github.com/dependabot))
+- Relax memory-leak action [#13974](https://github.com/jupyterlab/jupyterlab/pull/13974) ([@fcollonval](https://github.com/fcollonval))
+- Fix yarn.lock [#13963](https://github.com/jupyterlab/jupyterlab/pull/13963) ([@fcollonval](https://github.com/fcollonval))
+- Fix verdaccio start up with nodejs 18.14.0 [#13959](https://github.com/jupyterlab/jupyterlab/pull/13959) ([@fcollonval](https://github.com/fcollonval))
+- Remove rtc documentation [#13952](https://github.com/jupyterlab/jupyterlab/pull/13952) ([@hbcarlos](https://github.com/hbcarlos))
+- Report benchmark status even in case of failure [#13950](https://github.com/jupyterlab/jupyterlab/pull/13950) ([@fcollonval](https://github.com/fcollonval))
+- Remove vdom packages [#13949](https://github.com/jupyterlab/jupyterlab/pull/13949) ([@fcollonval](https://github.com/fcollonval))
+- Import directly from jupyter_server [#13942](https://github.com/jupyterlab/jupyterlab/pull/13942) ([@fcollonval](https://github.com/fcollonval))
+- Use Python 3.11 for js-debugger tests [#13941](https://github.com/jupyterlab/jupyterlab/pull/13941) ([@fcollonval](https://github.com/fcollonval))
+- Update plugin name to `@jupyterlab/filebrowser-extension:default-file-browser` [#13936](https://github.com/jupyterlab/jupyterlab/pull/13936) ([@jtpio](https://github.com/jtpio))
+- Bump ipython from 8.0.0 to 8.9.0 [#13935](https://github.com/jupyterlab/jupyterlab/pull/13935) ([@dependabot](https://github.com/dependabot))
+- Bump black\[jupyter\] from 22.12.0 to 23.1.0 [#13934](https://github.com/jupyterlab/jupyterlab/pull/13934) ([@dependabot](https://github.com/dependabot))
+- Bump ruff from 0.0.238 to 0.0.241 [#13933](https://github.com/jupyterlab/jupyterlab/pull/13933) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.4.4 to 35.5.0 [#13932](https://github.com/jupyterlab/jupyterlab/pull/13932) ([@dependabot](https://github.com/dependabot))
+- Fix UI tests [#13931](https://github.com/jupyterlab/jupyterlab/pull/13931) ([@fcollonval](https://github.com/fcollonval))
+- Upgrade to TypeScript 5.0 beta [#13925](https://github.com/jupyterlab/jupyterlab/pull/13925) ([@jasongrout](https://github.com/jasongrout))
+- Bump http-cache-semantics from 4.1.0 to 4.1.1 [#13922](https://github.com/jupyterlab/jupyterlab/pull/13922) ([@dependabot](https://github.com/dependabot))
+- Rename `@jupyterlab/completer-extension:tracker` to `@jupyterlab/completer-extension:manager` [#13910](https://github.com/jupyterlab/jupyterlab/pull/13910) ([@fcollonval](https://github.com/fcollonval))
+- Improve Galata [#13909](https://github.com/jupyterlab/jupyterlab/pull/13909) ([@fcollonval](https://github.com/fcollonval))
+- Lint fixes [#13905](https://github.com/jupyterlab/jupyterlab/pull/13905) ([@JasonWeill](https://github.com/JasonWeill))
+- Switch to VEGALITE5_MIME_TYPE [#13893](https://github.com/jupyterlab/jupyterlab/pull/13893) ([@ChristopherDavisUCI](https://github.com/ChristopherDavisUCI))
+- Bump altair from 4.2.0 to 4.2.2 [#13892](https://github.com/jupyterlab/jupyterlab/pull/13892) ([@dependabot](https://github.com/dependabot))
+- Add more linting [#13882](https://github.com/jupyterlab/jupyterlab/pull/13882) ([@blink1073](https://github.com/blink1073))
+- upgrade to MathJax 3 \[with git history\] [#13877](https://github.com/jupyterlab/jupyterlab/pull/13877) ([@dlqqq](https://github.com/dlqqq))
+- Upgrade `jlpm` to yarn 3.4.1 [#13875](https://github.com/jupyterlab/jupyterlab/pull/13875) ([@brichet](https://github.com/brichet))
+- Update to Playwright 1.30 [#13871](https://github.com/jupyterlab/jupyterlab/pull/13871) ([@jtpio](https://github.com/jtpio))
+- Update `jupyter_server_ydoc` as 0.6.2 is yanked [#13864](https://github.com/jupyterlab/jupyterlab/pull/13864) ([@fcollonval](https://github.com/fcollonval))
+- Bump jupyterlab-language-pack-zh-cn from 3.2.post7 to 3.5.post4 [#13843](https://github.com/jupyterlab/jupyterlab/pull/13843) ([@dependabot](https://github.com/dependabot))
+- Bump ruff from 0.0.226 to 0.0.230 [#13842](https://github.com/jupyterlab/jupyterlab/pull/13842) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.4.3 to 35.4.4 [#13840](https://github.com/jupyterlab/jupyterlab/pull/13840) ([@dependabot](https://github.com/dependabot))
+- Bump lumino packages to `2.0.0-beta.0` [#13828](https://github.com/jupyterlab/jupyterlab/pull/13828) ([@krassowski](https://github.com/krassowski))
+- Bump matplotlib from 3.5.1 to 3.6.3 [#13821](https://github.com/jupyterlab/jupyterlab/pull/13821) ([@dependabot](https://github.com/dependabot))
+- Bump ipywidgets from 7.6.6 to 8.0.4 [#13820](https://github.com/jupyterlab/jupyterlab/pull/13820) ([@dependabot](https://github.com/dependabot))
+- Bump ruff from 0.0.177 to 0.0.226 [#13819](https://github.com/jupyterlab/jupyterlab/pull/13819) ([@dependabot](https://github.com/dependabot))
+- Bump scipy from 1.7.3 to 1.10.0 [#13818](https://github.com/jupyterlab/jupyterlab/pull/13818) ([@dependabot](https://github.com/dependabot))
+- Bump pandas from 1.3.5 to 1.5.3 [#13817](https://github.com/jupyterlab/jupyterlab/pull/13817) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.4.1 to 35.4.3 [#13816](https://github.com/jupyterlab/jupyterlab/pull/13816) ([@dependabot](https://github.com/dependabot))
+- Remove debug print in test [#13814](https://github.com/jupyterlab/jupyterlab/pull/13814) ([@fcollonval](https://github.com/fcollonval))
+- Clean examples [#13812](https://github.com/jupyterlab/jupyterlab/pull/13812) ([@fcollonval](https://github.com/fcollonval))
+- Dependabot alert on json5 [#13808](https://github.com/jupyterlab/jupyterlab/pull/13808) ([@fcollonval](https://github.com/fcollonval))
+- Dependabot alert on jsonwebtoken [#13807](https://github.com/jupyterlab/jupyterlab/pull/13807) ([@fcollonval](https://github.com/fcollonval))
+- Fix `preferred_dir` for examples [#13788](https://github.com/jupyterlab/jupyterlab/pull/13788) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 35.4.0 to 35.4.1 [#13785](https://github.com/jupyterlab/jupyterlab/pull/13785) ([@dependabot](https://github.com/dependabot))
+- Bump canvas to version with nodejs 18 binaries [#13783](https://github.com/jupyterlab/jupyterlab/pull/13783) ([@fcollonval](https://github.com/fcollonval))
+- Added config to link ts source maps [#13765](https://github.com/jupyterlab/jupyterlab/pull/13765) ([@3coins](https://github.com/3coins))
+- Drop support for Python 3.7 [#13745](https://github.com/jupyterlab/jupyterlab/pull/13745) ([@jtpio](https://github.com/jtpio))
+- Drop the dependency on `@jupyterlab/buildutils` in `@jupyterlab/builder` [#13741](https://github.com/jupyterlab/jupyterlab/pull/13741) ([@jtpio](https://github.com/jtpio))
+- Bump toshimaru/auto-author-assign from 1.6.1 to 1.6.2 [#13738](https://github.com/jupyterlab/jupyterlab/pull/13738) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.2.1 to 35.4.0 [#13737](https://github.com/jupyterlab/jupyterlab/pull/13737) ([@dependabot](https://github.com/dependabot))
+- Upgrades Python to 3.10, Node to 18 [#13722](https://github.com/jupyterlab/jupyterlab/pull/13722) ([@JasonWeill](https://github.com/JasonWeill))
+- Require `jupyter_server>=2.0.1,<3` [#13718](https://github.com/jupyterlab/jupyterlab/pull/13718) ([@jtpio](https://github.com/jtpio))
+- Fix environment activation on Gitpod [#13715](https://github.com/jupyterlab/jupyterlab/pull/13715) ([@jtpio](https://github.com/jtpio))
+- Update copyright date to 2023 in the about dialog [#13708](https://github.com/jupyterlab/jupyterlab/pull/13708) ([@jtpio](https://github.com/jtpio))
+- Updates documentation snapshots [#13706](https://github.com/jupyterlab/jupyterlab/pull/13706) ([@brichet](https://github.com/brichet))
+- Use `DocumentWidgetOpenerMock` [#13703](https://github.com/jupyterlab/jupyterlab/pull/13703) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 35.1.0 to 35.2.1 [#13692](https://github.com/jupyterlab/jupyterlab/pull/13692) ([@dependabot](https://github.com/dependabot))
+- Remove empty button in the notebook toolbar [#13691](https://github.com/jupyterlab/jupyterlab/pull/13691) ([@trungleduc](https://github.com/trungleduc))
+- Bump json5 from 2.2.1 to 2.2.2 [#13681](https://github.com/jupyterlab/jupyterlab/pull/13681) ([@dependabot](https://github.com/dependabot))
+- Bump actions/stale from 6 to 7 [#13666](https://github.com/jupyterlab/jupyterlab/pull/13666) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 35.0.1 to 35.1.0 [#13665](https://github.com/jupyterlab/jupyterlab/pull/13665) ([@dependabot](https://github.com/dependabot))
+- Remove empty license field in pyproject.toml [#13654](https://github.com/jupyterlab/jupyterlab/pull/13654) ([@jtpio](https://github.com/jtpio))
+- Revert "Write the browser open files for test" [#13640](https://github.com/jupyterlab/jupyterlab/pull/13640) ([@fcollonval](https://github.com/fcollonval))
+- Remove `skipLibCheck` in the `vega5-extension` package [#13630](https://github.com/jupyterlab/jupyterlab/pull/13630) ([@jtpio](https://github.com/jtpio))
+- Update to lerna 6.2.0 [#13628](https://github.com/jupyterlab/jupyterlab/pull/13628) ([@jtpio](https://github.com/jtpio))
+- Remove log file otherwise it is committed [#13627](https://github.com/jupyterlab/jupyterlab/pull/13627) ([@fcollonval](https://github.com/fcollonval))
+- Use git command instead of GitHub action [#13625](https://github.com/jupyterlab/jupyterlab/pull/13625) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 34.5.3 to 35.0.1 [#13620](https://github.com/jupyterlab/jupyterlab/pull/13620) ([@dependabot](https://github.com/dependabot))
+- Remove old completer API [#13615](https://github.com/jupyterlab/jupyterlab/pull/13615) ([@krassowski](https://github.com/krassowski))
+- Update to Playwright 1.29 [#13612](https://github.com/jupyterlab/jupyterlab/pull/13612) ([@jtpio](https://github.com/jtpio))
+- Bump react 18 [#13607](https://github.com/jupyterlab/jupyterlab/pull/13607) ([@brichet](https://github.com/brichet))
+- Remove old editor user caret widget (dead code) and selection style [#13586](https://github.com/jupyterlab/jupyterlab/pull/13586) ([@fcollonval](https://github.com/fcollonval))
+- Drop typestyle [#13584](https://github.com/jupyterlab/jupyterlab/pull/13584) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 34.5.0 to 34.5.3 [#13574](https://github.com/jupyterlab/jupyterlab/pull/13574) ([@dependabot](https://github.com/dependabot))
+- Adopt ruff and clean up pre-commit [#13562](https://github.com/jupyterlab/jupyterlab/pull/13562) ([@blink1073](https://github.com/blink1073))
+- Bump dessant/lock-threads from 3 to 4 [#13540](https://github.com/jupyterlab/jupyterlab/pull/13540) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 34.3.0 to 34.5.0 [#13539](https://github.com/jupyterlab/jupyterlab/pull/13539) ([@dependabot](https://github.com/dependabot))
+- Bump decode-uri-component from 0.2.0 to 0.2.2 [#13536](https://github.com/jupyterlab/jupyterlab/pull/13536) ([@dependabot](https://github.com/dependabot))
+- Update `terser-webpack-plugin` [#13532](https://github.com/jupyterlab/jupyterlab/pull/13532) ([@jtpio](https://github.com/jtpio))
+- Fix accessing owner/repo in CI [#13523](https://github.com/jupyterlab/jupyterlab/pull/13523) ([@fcollonval](https://github.com/fcollonval))
+- Comment on the PR once the snapshots have been updated. [#13516](https://github.com/jupyterlab/jupyterlab/pull/13516) ([@fcollonval](https://github.com/fcollonval))
+- Fix for pytest-jupyter 0.5.2+ [#13515](https://github.com/jupyterlab/jupyterlab/pull/13515) ([@fcollonval](https://github.com/fcollonval))
+- Bump sanitize-html to 2.7.3 [#13509](https://github.com/jupyterlab/jupyterlab/pull/13509) ([@fcollonval](https://github.com/fcollonval))
+- Fix Python test dependencies [#13508](https://github.com/jupyterlab/jupyterlab/pull/13508) ([@fcollonval](https://github.com/fcollonval))
+- Depend on `@jupyter/ydoc` instead of `@jupyter-notebook/ydoc` [#13506](https://github.com/jupyterlab/jupyterlab/pull/13506) ([@jtpio](https://github.com/jtpio))
+- Require jupyter-server-ydoc >=0.5.1 [#13478](https://github.com/jupyterlab/jupyterlab/pull/13478) ([@davidbrochart](https://github.com/davidbrochart))
+- Test against Python 3.11 [#13474](https://github.com/jupyterlab/jupyterlab/pull/13474) ([@fcollonval](https://github.com/fcollonval))
+- Drop the `moment` dependency [#13469](https://github.com/jupyterlab/jupyterlab/pull/13469) ([@jtpio](https://github.com/jtpio))
+- Force right sidebar size [#13447](https://github.com/jupyterlab/jupyterlab/pull/13447) ([@fcollonval](https://github.com/fcollonval))
+- Use default URL in test mock-up [#13443](https://github.com/jupyterlab/jupyterlab/pull/13443) ([@fcollonval](https://github.com/fcollonval))
+- Require jupyter_server_ydoc >=0.4.0 [#13434](https://github.com/jupyterlab/jupyterlab/pull/13434) ([@davidbrochart](https://github.com/davidbrochart))
+- Clean up and update dependencies [#13430](https://github.com/jupyterlab/jupyterlab/pull/13430) ([@fcollonval](https://github.com/fcollonval))
+- Use more consistent naming for user service [#13428](https://github.com/jupyterlab/jupyterlab/pull/13428) ([@fcollonval](https://github.com/fcollonval))
+- Remove shared-model from labeler [#13422](https://github.com/jupyterlab/jupyterlab/pull/13422) ([@fcollonval](https://github.com/fcollonval))
+- tomllib is in stdlib in Python 3.11+ [#13399](https://github.com/jupyterlab/jupyterlab/pull/13399) ([@frenzymadness](https://github.com/frenzymadness))
+- Bump loader-utils from 1.4.0 to 1.4.1 [#13396](https://github.com/jupyterlab/jupyterlab/pull/13396) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 34.0.2 to 34.3.0 [#13391](https://github.com/jupyterlab/jupyterlab/pull/13391) ([@dependabot](https://github.com/dependabot))
+- Add jupyter-server-fileid to Binder [#13370](https://github.com/jupyterlab/jupyterlab/pull/13370) ([@fcollonval](https://github.com/fcollonval))
+- Integrity check does not clean style import when emptied [#13367](https://github.com/jupyterlab/jupyterlab/pull/13367) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 33.0.0 to 34.0.2 [#13355](https://github.com/jupyterlab/jupyterlab/pull/13355) ([@dependabot](https://github.com/dependabot))
+- Export return type of a public method [#13354](https://github.com/jupyterlab/jupyterlab/pull/13354) ([@fcollonval](https://github.com/fcollonval))
+- Check a core path is actually a package [#13346](https://github.com/jupyterlab/jupyterlab/pull/13346) ([@fcollonval](https://github.com/fcollonval))
+- Fix Binder for jupyter-server v2 [#13344](https://github.com/jupyterlab/jupyterlab/pull/13344) ([@fcollonval](https://github.com/fcollonval))
+- Fix the examples with jupyter-server v2 [#13336](https://github.com/jupyterlab/jupyterlab/pull/13336) ([@fcollonval](https://github.com/fcollonval))
+- Add mdformat plugins [#13335](https://github.com/jupyterlab/jupyterlab/pull/13335) ([@blink1073](https://github.com/blink1073))
+- Removes empty requires list  [#13334](https://github.com/jupyterlab/jupyterlab/pull/13334) ([@hbcarlos](https://github.com/hbcarlos))
+- Switch to releaser v2 [#13322](https://github.com/jupyterlab/jupyterlab/pull/13322) ([@blink1073](https://github.com/blink1073))
+- Deprecate managing source extensions with `jupyter labextension` [#13321](https://github.com/jupyterlab/jupyterlab/pull/13321) ([@jtpio](https://github.com/jtpio))
+- Reduce ILayoutRestorer API surface area [#13300](https://github.com/jupyterlab/jupyterlab/pull/13300) ([@afshin](https://github.com/afshin))
+- Fix kernel snapshot in test documentation [#13295](https://github.com/jupyterlab/jupyterlab/pull/13295) ([@brichet](https://github.com/brichet))
+- Bump tj-actions/changed-files from 32.1.2 to 33.0.0 [#13294](https://github.com/jupyterlab/jupyterlab/pull/13294) ([@dependabot](https://github.com/dependabot))
+- Remove `generate_changelog.py` script [#13262](https://github.com/jupyterlab/jupyterlab/pull/13262) ([@jtpio](https://github.com/jtpio))
+- Bump tj-actions/changed-files from 32.0.0 to 32.1.2 [#13260](https://github.com/jupyterlab/jupyterlab/pull/13260) ([@dependabot](https://github.com/dependabot))
+- Check for unused file browser style rules in Galata [#13256](https://github.com/jupyterlab/jupyterlab/pull/13256) ([@krassowski](https://github.com/krassowski))
+- Update to lerna 6 [#13251](https://github.com/jupyterlab/jupyterlab/pull/13251) ([@jtpio](https://github.com/jtpio))
+- Fix documentation snapshot [#13244](https://github.com/jupyterlab/jupyterlab/pull/13244) ([@fcollonval](https://github.com/fcollonval))
+- Enable RTC by default when starting JL in the Gitpod setup [#13239](https://github.com/jupyterlab/jupyterlab/pull/13239) ([@firai](https://github.com/firai))
+- Bump memory-leak action [#13231](https://github.com/jupyterlab/jupyterlab/pull/13231) ([@fcollonval](https://github.com/fcollonval))
+- Fix memory leaks [#13229](https://github.com/jupyterlab/jupyterlab/pull/13229) ([@fcollonval](https://github.com/fcollonval))
+- Update `pytest` and `pytest-check-links` dependencies [#13219](https://github.com/jupyterlab/jupyterlab/pull/13219) ([@jtpio](https://github.com/jtpio))
+- Remove unused modelDBFactory [#13213](https://github.com/jupyterlab/jupyterlab/pull/13213) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 31.0.3 to 32.0.0 [#13212](https://github.com/jupyterlab/jupyterlab/pull/13212) ([@dependabot](https://github.com/dependabot))
+- Fix typo in the "Test Minimum Version" CI step [#13210](https://github.com/jupyterlab/jupyterlab/pull/13210) ([@jtpio](https://github.com/jtpio))
+- Update to Playwright 1.27 [#13205](https://github.com/jupyterlab/jupyterlab/pull/13205) ([@jtpio](https://github.com/jtpio))
+- Try the GitHub Playwright reporter on CI [#13198](https://github.com/jupyterlab/jupyterlab/pull/13198) ([@jtpio](https://github.com/jtpio))
+- Update RJSF to latest stable version [#13191](https://github.com/jupyterlab/jupyterlab/pull/13191) ([@brichet](https://github.com/brichet))
+- Bump tj-actions/changed-files from 31.0.1 to 31.0.3 [#13171](https://github.com/jupyterlab/jupyterlab/pull/13171) ([@dependabot](https://github.com/dependabot))
+- Remove `width: 100%` of `jp-WindowedPanel-inner` [#13157](https://github.com/jupyterlab/jupyterlab/pull/13157) ([@jtpio](https://github.com/jtpio))
+- Remove `width: 100%` of `jp-WindowedPanel-window` [#13154](https://github.com/jupyterlab/jupyterlab/pull/13154) ([@jtpio](https://github.com/jtpio))
+- Bump lerna [#13147](https://github.com/jupyterlab/jupyterlab/pull/13147) ([@fcollonval](https://github.com/fcollonval))
+- Update to Playwright 1.26 [#13140](https://github.com/jupyterlab/jupyterlab/pull/13140) ([@jtpio](https://github.com/jtpio))
+- Bump tj-actions/changed-files from 29.0.7 to 31.0.1 [#13130](https://github.com/jupyterlab/jupyterlab/pull/13130) ([@dependabot](https://github.com/dependabot))
+- Bump actions/stale from 5 to 6 [#13129](https://github.com/jupyterlab/jupyterlab/pull/13129) ([@dependabot](https://github.com/dependabot))
+- Remove xeus-python installation for debugger test [#13113](https://github.com/jupyterlab/jupyterlab/pull/13113) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 29.0.4 to 29.0.7 [#13106](https://github.com/jupyterlab/jupyterlab/pull/13106) ([@dependabot](https://github.com/dependabot))
+- Revert "Pin hatch-jupyter-builder for now" [#13084](https://github.com/jupyterlab/jupyterlab/pull/13084) ([@fcollonval](https://github.com/fcollonval))
+- Pin hatch-jupyter-builder for now [#13083](https://github.com/jupyterlab/jupyterlab/pull/13083) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 29.0.2 to 29.0.4 [#13079](https://github.com/jupyterlab/jupyterlab/pull/13079) ([@dependabot](https://github.com/dependabot))
+- Remove dead code [#13077](https://github.com/jupyterlab/jupyterlab/pull/13077) ([@fcollonval](https://github.com/fcollonval))
+- Remove noisy log message [#13073](https://github.com/jupyterlab/jupyterlab/pull/13073) ([@fcollonval](https://github.com/fcollonval))
+- Bump to Lumino 2ᵅ⁶ [#13062](https://github.com/jupyterlab/jupyterlab/pull/13062) ([@afshin](https://github.com/afshin))
+- Switch to `pull_request_target` to have write permission on forks [#13060](https://github.com/jupyterlab/jupyterlab/pull/13060) ([@fcollonval](https://github.com/fcollonval))
+- Change compilation target from ES2017 to ES2018 [#13053](https://github.com/jupyterlab/jupyterlab/pull/13053) ([@afshin](https://github.com/afshin))
+- Fix GitHub script variable name [#13050](https://github.com/jupyterlab/jupyterlab/pull/13050) ([@fcollonval](https://github.com/fcollonval))
+- REST API is under a namespace in github-script [#13043](https://github.com/jupyterlab/jupyterlab/pull/13043) ([@fcollonval](https://github.com/fcollonval))
+- "Fix License Headers" CI check is failing [#13041](https://github.com/jupyterlab/jupyterlab/pull/13041) ([@fcollonval](https://github.com/fcollonval))
+- Update the Gitpod setup to use `micromamba` to bootstrap the dev environment [#13030](https://github.com/jupyterlab/jupyterlab/pull/13030) ([@jtpio](https://github.com/jtpio))
+- Drop node-fetch for galata helpers [#13029](https://github.com/jupyterlab/jupyterlab/pull/13029) ([@fcollonval](https://github.com/fcollonval))
+- Bump tj-actions/changed-files from 28 to 29.0.2 [#13025](https://github.com/jupyterlab/jupyterlab/pull/13025) ([@dependabot](https://github.com/dependabot))
+- Fix lumino API documentation links [#13021](https://github.com/jupyterlab/jupyterlab/pull/13021) ([@fcollonval](https://github.com/fcollonval))
+- Use `python-version` in the macos workflow [#13014](https://github.com/jupyterlab/jupyterlab/pull/13014) ([@jtpio](https://github.com/jtpio))
+- Remove unneeded cm5 types in examples [#13010](https://github.com/jupyterlab/jupyterlab/pull/13010) ([@fcollonval](https://github.com/fcollonval))
+- Update to Lumino 2 [#12992](https://github.com/jupyterlab/jupyterlab/pull/12992) ([@afshin](https://github.com/afshin))
+- Bump tj-actions/changed-files from 24 to 28 [#12986](https://github.com/jupyterlab/jupyterlab/pull/12986) ([@dependabot](https://github.com/dependabot))
+- Fix copy the reference data for final report [#12984](https://github.com/jupyterlab/jupyterlab/pull/12984) ([@fcollonval](https://github.com/fcollonval))
+- Drop the pin on `jupyterlab_widgets` in the docs dependencies [#12979](https://github.com/jupyterlab/jupyterlab/pull/12979) ([@jtpio](https://github.com/jtpio))
+- Add `(developer)` label to the developer facing commands [#12970](https://github.com/jupyterlab/jupyterlab/pull/12970) ([@jtpio](https://github.com/jtpio))
+- Pin `jupyterlab_widgets==1.1.1` in `docs-screenshots` [#12967](https://github.com/jupyterlab/jupyterlab/pull/12967) ([@jtpio](https://github.com/jtpio))
+- Update documentation welcome image [#12957](https://github.com/jupyterlab/jupyterlab/pull/12957) ([@fcollonval](https://github.com/fcollonval))
+- Fix dependabot alerts for ejs and got [#12956](https://github.com/jupyterlab/jupyterlab/pull/12956) ([@fcollonval](https://github.com/fcollonval))
+- Bump lerna to 5.x [#12950](https://github.com/jupyterlab/jupyterlab/pull/12950) ([@fcollonval](https://github.com/fcollonval))
+- Bump yarn.js to 1.22.19 [#12949](https://github.com/jupyterlab/jupyterlab/pull/12949) ([@fcollonval](https://github.com/fcollonval))
+- Bump toshimaru/auto-author-assign from 1.6.0 to 1.6.1 [#12922](https://github.com/jupyterlab/jupyterlab/pull/12922) ([@dependabot](https://github.com/dependabot))
+- Remove @lumino/coreutils dependency from @jupyterlab/buildutils [#12910](https://github.com/jupyterlab/jupyterlab/pull/12910) ([@afshin](https://github.com/afshin))
+- Log launcher error to console [#12909](https://github.com/jupyterlab/jupyterlab/pull/12909) ([@trungleduc](https://github.com/trungleduc))
+- Add `dev_mode/style.js` to the licenser ignore list [#12902](https://github.com/jupyterlab/jupyterlab/pull/12902) ([@jtpio](https://github.com/jtpio))
+- Add license header fix to git-blame-ignore [#12900](https://github.com/jupyterlab/jupyterlab/pull/12900) ([@fcollonval](https://github.com/fcollonval))
+- Bump toshimaru/auto-author-assign from 1.5.1 to 1.6.0 [#12890](https://github.com/jupyterlab/jupyterlab/pull/12890) ([@dependabot](https://github.com/dependabot))
+- Update `yjs-codemirror.next` [#12880](https://github.com/jupyterlab/jupyterlab/pull/12880) ([@jtpio](https://github.com/jtpio))
+- Add license header fix job [#12872](https://github.com/jupyterlab/jupyterlab/pull/12872) ([@fcollonval](https://github.com/fcollonval))
+- Bump toshimaru/auto-author-assign from 1.5.0 to 1.5.1 [#12854](https://github.com/jupyterlab/jupyterlab/pull/12854) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 23 to 24 [#12853](https://github.com/jupyterlab/jupyterlab/pull/12853) ([@dependabot](https://github.com/dependabot))
+- Run `yarn-deduplicate` on `build:core` [#12850](https://github.com/jupyterlab/jupyterlab/pull/12850) ([@jtpio](https://github.com/jtpio))
+- Update snapshots for challenger commit [#12820](https://github.com/jupyterlab/jupyterlab/pull/12820) ([@fcollonval](https://github.com/fcollonval))
+- Bump terser from 4.8.0 to 4.8.1 [#12818](https://github.com/jupyterlab/jupyterlab/pull/12818) ([@dependabot](https://github.com/dependabot))
+- Update `verdaccio`, start registry on `0.0.0.0` instead of `localhost` [#12799](https://github.com/jupyterlab/jupyterlab/pull/12799) ([@jtpio](https://github.com/jtpio))
+- Run memory-leak tests on PR [#12789](https://github.com/jupyterlab/jupyterlab/pull/12789) ([@fcollonval](https://github.com/fcollonval))
+- Use Vega SVG renderer to drop canvas dependency [#12785](https://github.com/jupyterlab/jupyterlab/pull/12785) ([@fcollonval](https://github.com/fcollonval))
+- Bump moment from 2.29.2 to 2.29.4 [#12781](https://github.com/jupyterlab/jupyterlab/pull/12781) ([@dependabot](https://github.com/dependabot))
+- Bump @lumino/widgets to 1.33.0 [#12777](https://github.com/jupyterlab/jupyterlab/pull/12777) ([@fcollonval](https://github.com/fcollonval))
+- Removes lighthouse and markdown-loader-jest [#12776](https://github.com/jupyterlab/jupyterlab/pull/12776) ([@fcollonval](https://github.com/fcollonval))
+- \[memory-leaks\] Fixes following cell addition analysis [#12774](https://github.com/jupyterlab/jupyterlab/pull/12774) ([@fcollonval](https://github.com/fcollonval))
+- Bump parse-url from 6.0.0 to 6.0.2 [#12773](https://github.com/jupyterlab/jupyterlab/pull/12773) ([@dependabot](https://github.com/dependabot))
+- Move YDocWebSocketHandler to jupyter-server [#12772](https://github.com/jupyterlab/jupyterlab/pull/12772) ([@davidbrochart](https://github.com/davidbrochart))
+- Fix memory leaks [#12750](https://github.com/jupyterlab/jupyterlab/pull/12750) ([@fcollonval](https://github.com/fcollonval))
+- Bump version of `marked` and `@types/marked` [#12747](https://github.com/jupyterlab/jupyterlab/pull/12747) ([@krassowski](https://github.com/krassowski))
+- Bump shell-quote from 1.7.2 to 1.7.3 [#12744](https://github.com/jupyterlab/jupyterlab/pull/12744) ([@dependabot](https://github.com/dependabot))
+- Remove unstubExtensionsSearch [#12738](https://github.com/jupyterlab/jupyterlab/pull/12738) ([@fcollonval](https://github.com/fcollonval))
+- Bump actions/cache from 1 to 3 [#12722](https://github.com/jupyterlab/jupyterlab/pull/12722) ([@dependabot](https://github.com/dependabot))
+- Bump actions/stale from 4 to 5 [#12721](https://github.com/jupyterlab/jupyterlab/pull/12721) ([@dependabot](https://github.com/dependabot))
+- Bump actions/download-artifact from 2 to 3 [#12720](https://github.com/jupyterlab/jupyterlab/pull/12720) ([@dependabot](https://github.com/dependabot))
+- stub extension search in UI test [#12714](https://github.com/jupyterlab/jupyterlab/pull/12714) ([@dlqqq](https://github.com/dlqqq))
+- Update dev dependencies [#12698](https://github.com/jupyterlab/jupyterlab/pull/12698) ([@jtpio](https://github.com/jtpio))
+- Bump actions/github-script from 3.1 to 6 [#12693](https://github.com/jupyterlab/jupyterlab/pull/12693) ([@dependabot](https://github.com/dependabot))
+- Bump tj-actions/changed-files from 18.6 to 23 [#12692](https://github.com/jupyterlab/jupyterlab/pull/12692) ([@dependabot](https://github.com/dependabot))
+- Bump actions/setup-python from 3 to 4 [#12691](https://github.com/jupyterlab/jupyterlab/pull/12691) ([@dependabot](https://github.com/dependabot))
+- Bump pre-commit/action from 2.0.3 to 3.0.0 [#12690](https://github.com/jupyterlab/jupyterlab/pull/12690) ([@dependabot](https://github.com/dependabot))
+- Bump actions/upload-artifact from 2 to 3 [#12689](https://github.com/jupyterlab/jupyterlab/pull/12689) ([@dependabot](https://github.com/dependabot))
+- Update to TypeScript 4.7 [#12683](https://github.com/jupyterlab/jupyterlab/pull/12683) ([@jtpio](https://github.com/jtpio))
+- Drop pre-commit from build dependencies [#12680](https://github.com/jupyterlab/jupyterlab/pull/12680) ([@fcollonval](https://github.com/fcollonval))
+- default to system node version in precommit [#12679](https://github.com/jupyterlab/jupyterlab/pull/12679) ([@dlqqq](https://github.com/dlqqq))
+- Remove scripts linked to test [#12654](https://github.com/jupyterlab/jupyterlab/pull/12654) ([@fcollonval](https://github.com/fcollonval))
+- Update codeql action from v1 to v2 [#12645](https://github.com/jupyterlab/jupyterlab/pull/12645) ([@fcollonval](https://github.com/fcollonval))
+- Update snapshot for the extension manager [#12643](https://github.com/jupyterlab/jupyterlab/pull/12643) ([@jtpio](https://github.com/jtpio))
+- Bump actions/setup-python from 2 to 3 [#12642](https://github.com/jupyterlab/jupyterlab/pull/12642) ([@dependabot](https://github.com/dependabot))
+- Bump actions/checkout from 2 to 3 [#12641](https://github.com/jupyterlab/jupyterlab/pull/12641) ([@dependabot](https://github.com/dependabot))
+- Bump toshimaru/auto-author-assign from 1.3.4 to 1.5.0 [#12640](https://github.com/jupyterlab/jupyterlab/pull/12640) ([@dependabot](https://github.com/dependabot))
+- Bump dessant/lock-threads from 2 to 3 [#12639](https://github.com/jupyterlab/jupyterlab/pull/12639) ([@dependabot](https://github.com/dependabot))
+- Bump actions/setup-node from 2 to 3 [#12638](https://github.com/jupyterlab/jupyterlab/pull/12638) ([@dependabot](https://github.com/dependabot))
+- Bump pre-commit/action from 2.0.0 to 2.0.3 [#12637](https://github.com/jupyterlab/jupyterlab/pull/12637) ([@dependabot](https://github.com/dependabot))
+- Add bot to update github actions and remove codeql temporary fix [#12634](https://github.com/jupyterlab/jupyterlab/pull/12634) ([@fcollonval](https://github.com/fcollonval))
+- Remove unneeded build:all and test config [#12618](https://github.com/jupyterlab/jupyterlab/pull/12618) ([@fcollonval](https://github.com/fcollonval))
+
+#### Documentation improvements
+
+- Add user facing changelog [#14437](https://github.com/jupyterlab/jupyterlab/pull/14437) ([@jtpio](https://github.com/jtpio))
+- Add new release postmortem [#14432](https://github.com/jupyterlab/jupyterlab/pull/14432) ([@jtpio](https://github.com/jtpio))
+- Fix documentation build on CI [#14423](https://github.com/jupyterlab/jupyterlab/pull/14423) ([@jtpio](https://github.com/jtpio))
+- Harmonizes form renderer ids [#14415](https://github.com/jupyterlab/jupyterlab/pull/14415) ([@brichet](https://github.com/brichet))
+- Fix CI: remove/update broken docs links [#14414](https://github.com/jupyterlab/jupyterlab/pull/14414) ([@krassowski](https://github.com/krassowski))
+- Switch to new extension template [#14391](https://github.com/jupyterlab/jupyterlab/pull/14391) ([@fcollonval](https://github.com/fcollonval))
+- Improve JavaScript API documentation [#14367](https://github.com/jupyterlab/jupyterlab/pull/14367) ([@fcollonval](https://github.com/fcollonval))
+- Improve jlpm migration guide [#14362](https://github.com/jupyterlab/jupyterlab/pull/14362) ([@fcollonval](https://github.com/fcollonval))
+- Document plugins and tokens [#14360](https://github.com/jupyterlab/jupyterlab/pull/14360) ([@fcollonval](https://github.com/fcollonval))
+- Document Backwards Compatibility,  SemVer and Breaking Changes [#14355](https://github.com/jupyterlab/jupyterlab/pull/14355) ([@ericsnekbytes](https://github.com/ericsnekbytes))
+- Align notebook trust behaviour with trust in classic Notebook [#14345](https://github.com/jupyterlab/jupyterlab/pull/14345) ([@krassowski](https://github.com/krassowski))
+- Fix typo [#14303](https://github.com/jupyterlab/jupyterlab/pull/14303) ([@davidbrochart](https://github.com/davidbrochart))
+- Update extension upgrade script [#14279](https://github.com/jupyterlab/jupyterlab/pull/14279) ([@fcollonval](https://github.com/fcollonval))
+- Remove archived repos from the post release checklist [#14259](https://github.com/jupyterlab/jupyterlab/pull/14259) ([@jtpio](https://github.com/jtpio))
+- Fix failing `check_links` job [#14243](https://github.com/jupyterlab/jupyterlab/pull/14243) ([@krassowski](https://github.com/krassowski))
+- Enforce a minimal set of CSS selector complexity rules [#14238](https://github.com/jupyterlab/jupyterlab/pull/14238) ([@krassowski](https://github.com/krassowski))
+- Add note for jest configuration and JLab 3.6 [#14207](https://github.com/jupyterlab/jupyterlab/pull/14207) ([@fcollonval](https://github.com/fcollonval))
+- Update RELEASE.md to mention the draft GitHub release [#14188](https://github.com/jupyterlab/jupyterlab/pull/14188) ([@jtpio](https://github.com/jtpio))
+- Add the releaser workflows to the repo [#14176](https://github.com/jupyterlab/jupyterlab/pull/14176) ([@jtpio](https://github.com/jtpio))
+- Remove deprecated code [#14160](https://github.com/jupyterlab/jupyterlab/pull/14160) ([@fcollonval](https://github.com/fcollonval))
+- Fixes documentation build [#14104](https://github.com/jupyterlab/jupyterlab/pull/14104) ([@brichet](https://github.com/brichet))
+- Bump to Lumino 2.0.0-rc.0 [#14096](https://github.com/jupyterlab/jupyterlab/pull/14096) ([@fcollonval](https://github.com/fcollonval))
+- Update the Classic Notebook FAQ section in the documentation [#14070](https://github.com/jupyterlab/jupyterlab/pull/14070) ([@jtpio](https://github.com/jtpio))
+- Option to disable the autolink feature [#14068](https://github.com/jupyterlab/jupyterlab/pull/14068) ([@cccs-nik](https://github.com/cccs-nik))
+- Move the file name searcher to the file browser toolbar [#14064](https://github.com/jupyterlab/jupyterlab/pull/14064) ([@jtpio](https://github.com/jtpio))
+- Fix attachments [#14052](https://github.com/jupyterlab/jupyterlab/pull/14052) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix RTC check and documentation [#14047](https://github.com/jupyterlab/jupyterlab/pull/14047) ([@fcollonval](https://github.com/fcollonval))
+- Get dev binder up and running again [#14038](https://github.com/jupyterlab/jupyterlab/pull/14038) ([@bollwyvl](https://github.com/bollwyvl))
+- Using metadataform for default notebooktools [#14026](https://github.com/jupyterlab/jupyterlab/pull/14026) ([@brichet](https://github.com/brichet))
+- Bump ruff from 0.0.242 to 0.0.246 [#13980](https://github.com/jupyterlab/jupyterlab/pull/13980) ([@dependabot](https://github.com/dependabot))
+- Mention how to fix pixman, cairo missing library errors that occur while running tests in readthedocs [#13956](https://github.com/jupyterlab/jupyterlab/pull/13956) ([@andrii-i](https://github.com/andrii-i))
+- Remove rtc documentation [#13952](https://github.com/jupyterlab/jupyterlab/pull/13952) ([@hbcarlos](https://github.com/hbcarlos))
+- Remove vdom packages [#13949](https://github.com/jupyterlab/jupyterlab/pull/13949) ([@fcollonval](https://github.com/fcollonval))
+- Fixes toolbar button for Restart Kernel and Run All [#13939](https://github.com/jupyterlab/jupyterlab/pull/13939) ([@JasonWeill](https://github.com/JasonWeill))
+- Improve Galata [#13909](https://github.com/jupyterlab/jupyterlab/pull/13909) ([@fcollonval](https://github.com/fcollonval))
+- Move RTC packages to an extension [#13907](https://github.com/jupyterlab/jupyterlab/pull/13907) ([@hbcarlos](https://github.com/hbcarlos))
+- Fix minor typo in urls.rst [#13902](https://github.com/jupyterlab/jupyterlab/pull/13902) ([@chbrandt](https://github.com/chbrandt))
+- Add more linting [#13882](https://github.com/jupyterlab/jupyterlab/pull/13882) ([@blink1073](https://github.com/blink1073))
+- upgrade to MathJax 3 \[with git history\] [#13877](https://github.com/jupyterlab/jupyterlab/pull/13877) ([@dlqqq](https://github.com/dlqqq))
+- Upgrade `jlpm` to yarn 3.4.1 [#13875](https://github.com/jupyterlab/jupyterlab/pull/13875) ([@brichet](https://github.com/brichet))
+- Update language-packs workflow [#13874](https://github.com/jupyterlab/jupyterlab/pull/13874) ([@fcollonval](https://github.com/fcollonval))
+- Caret operator in documentation [#13856](https://github.com/jupyterlab/jupyterlab/pull/13856) ([@JasonWeill](https://github.com/JasonWeill))
+- Bump ruff from 0.0.226 to 0.0.230 [#13842](https://github.com/jupyterlab/jupyterlab/pull/13842) ([@dependabot](https://github.com/dependabot))
+- Improves translator API [#13834](https://github.com/jupyterlab/jupyterlab/pull/13834) ([@hbcarlos](https://github.com/hbcarlos))
+- link nbclassic docs, note Lab 4 drop notebook dependency [#13830](https://github.com/jupyterlab/jupyterlab/pull/13830) ([@RRosio](https://github.com/RRosio))
+- Improve form renderer registry [#13823](https://github.com/jupyterlab/jupyterlab/pull/13823) ([@fcollonval](https://github.com/fcollonval))
+- Bump ruff from 0.0.177 to 0.0.226 [#13819](https://github.com/jupyterlab/jupyterlab/pull/13819) ([@dependabot](https://github.com/dependabot))
+- Bug fixes/revisions for the Lab extension tutorial [#13813](https://github.com/jupyterlab/jupyterlab/pull/13813) ([@fcollonval](https://github.com/fcollonval))
+- Updates jupyter_ydoc, removes the docprovider and uses drives as providers [#13786](https://github.com/jupyterlab/jupyterlab/pull/13786) ([@hbcarlos](https://github.com/hbcarlos))
+- Merge Component registries [#13769](https://github.com/jupyterlab/jupyterlab/pull/13769) ([@brichet](https://github.com/brichet))
+- Remove deprecated `window.jupyterlab` [#13767](https://github.com/jupyterlab/jupyterlab/pull/13767) ([@jtpio](https://github.com/jtpio))
+- Minor improvements to update the tutorial [#13766](https://github.com/jupyterlab/jupyterlab/pull/13766) ([@fcollonval](https://github.com/fcollonval))
+- Fix typo in release instructions [#13754](https://github.com/jupyterlab/jupyterlab/pull/13754) ([@jasongrout](https://github.com/jasongrout))
+- Upgrades Python to 3.10, Node to 18 [#13722](https://github.com/jupyterlab/jupyterlab/pull/13722) ([@JasonWeill](https://github.com/JasonWeill))
+- Update notebook.rst [#13717](https://github.com/jupyterlab/jupyterlab/pull/13717) ([@gabalafou](https://github.com/gabalafou))
+- Fix links in `CHANGELOG.md` [#13698](https://github.com/jupyterlab/jupyterlab/pull/13698) ([@jtpio](https://github.com/jtpio))
+- update demo binder link to latest master [#13697](https://github.com/jupyterlab/jupyterlab/pull/13697) ([@akhmerov](https://github.com/akhmerov))
+- Update API documentation links [#13695](https://github.com/jupyterlab/jupyterlab/pull/13695) ([@hsuanxyz](https://github.com/hsuanxyz))
+- Update plugin ID of hub extension [#13688](https://github.com/jupyterlab/jupyterlab/pull/13688) ([@mctoohey](https://github.com/mctoohey))
+- Upgrades Xterm to v. 5 [#13685](https://github.com/jupyterlab/jupyterlab/pull/13685) ([@JasonWeill](https://github.com/JasonWeill))
+- Improve completer rendering performance [#13663](https://github.com/jupyterlab/jupyterlab/pull/13663) ([@krassowski](https://github.com/krassowski))
+- Use tokens to extend CodeMirror editors [#13639](https://github.com/jupyterlab/jupyterlab/pull/13639) ([@fcollonval](https://github.com/fcollonval))
+- Add the `scaleFactor` value from the embed options when creating the PNG representation for a Vega-based chart [#13610](https://github.com/jupyterlab/jupyterlab/pull/13610) ([@joaopalmeiro](https://github.com/joaopalmeiro))
+- Bump react 18 [#13607](https://github.com/jupyterlab/jupyterlab/pull/13607) ([@brichet](https://github.com/brichet))
+- Copy edit for privacy policy docs [#13594](https://github.com/jupyterlab/jupyterlab/pull/13594) ([@JasonWeill](https://github.com/JasonWeill))
+- Remove old editor user caret widget (dead code) and selection style [#13586](https://github.com/jupyterlab/jupyterlab/pull/13586) ([@fcollonval](https://github.com/fcollonval))
+- Drop typestyle [#13584](https://github.com/jupyterlab/jupyterlab/pull/13584) ([@fcollonval](https://github.com/fcollonval))
+- Documentation RTC and user service [#13578](https://github.com/jupyterlab/jupyterlab/pull/13578) ([@hbcarlos](https://github.com/hbcarlos))
+- Adopt ruff and clean up pre-commit [#13562](https://github.com/jupyterlab/jupyterlab/pull/13562) ([@blink1073](https://github.com/blink1073))
+- Sanitize notification message [#13510](https://github.com/jupyterlab/jupyterlab/pull/13510) ([@fcollonval](https://github.com/fcollonval))
+- Follow-on to events service [#13485](https://github.com/jupyterlab/jupyterlab/pull/13485) ([@afshin](https://github.com/afshin))
+- Drop the `moment` dependency [#13469](https://github.com/jupyterlab/jupyterlab/pull/13469) ([@jtpio](https://github.com/jtpio))
+- Remove broken URL [#13445](https://github.com/jupyterlab/jupyterlab/pull/13445) ([@fcollonval](https://github.com/fcollonval))
+- Use default URL in test mock-up [#13443](https://github.com/jupyterlab/jupyterlab/pull/13443) ([@fcollonval](https://github.com/fcollonval))
+- Allows to pause the execution during debug [#13433](https://github.com/jupyterlab/jupyterlab/pull/13433) ([@brichet](https://github.com/brichet))
+- Update the tutorial to reflect the changes in the latest cookiecutter… [#13417](https://github.com/jupyterlab/jupyterlab/pull/13417) ([@frivas-at-navteca](https://github.com/frivas-at-navteca))
+- Move configuration to jupyter-server-ydoc [#13413](https://github.com/jupyterlab/jupyterlab/pull/13413) ([@davidbrochart](https://github.com/davidbrochart))
+- Suggest adding video preview in PR template [#13410](https://github.com/jupyterlab/jupyterlab/pull/13410) ([@andrii-i](https://github.com/andrii-i))
+- Add announcements [#13365](https://github.com/jupyterlab/jupyterlab/pull/13365) ([@fcollonval](https://github.com/fcollonval))
+- Fix Binder for jupyter-server v2 [#13344](https://github.com/jupyterlab/jupyterlab/pull/13344) ([@fcollonval](https://github.com/fcollonval))
+- Add mdformat plugins [#13335](https://github.com/jupyterlab/jupyterlab/pull/13335) ([@blink1073](https://github.com/blink1073))
+- Remove duplicate changelog marker [#13325](https://github.com/jupyterlab/jupyterlab/pull/13325) ([@jtpio](https://github.com/jtpio))
+- Switch to releaser v2 [#13322](https://github.com/jupyterlab/jupyterlab/pull/13322) ([@blink1073](https://github.com/blink1073))
+- Backport 3.5.0 changelog on master [#13318](https://github.com/jupyterlab/jupyterlab/pull/13318) ([@fcollonval](https://github.com/fcollonval))
+- Scroll to cell by ID based on hash fragment [#13285](https://github.com/jupyterlab/jupyterlab/pull/13285) ([@krassowski](https://github.com/krassowski))
+- Correct starting docs: working directory path sample code [#13261](https://github.com/jupyterlab/jupyterlab/pull/13261) ([@hugetim](https://github.com/hugetim))
+- Update README.md [#13257](https://github.com/jupyterlab/jupyterlab/pull/13257) ([@liliyao2022](https://github.com/liliyao2022))
+- Improve documentation [#13232](https://github.com/jupyterlab/jupyterlab/pull/13232) ([@fcollonval](https://github.com/fcollonval))
+- Update example documentation: `lab -> app` [#13223](https://github.com/jupyterlab/jupyterlab/pull/13223) ([@davidbrochart](https://github.com/davidbrochart))
+- Relax doc provider API [#13214](https://github.com/jupyterlab/jupyterlab/pull/13214) ([@fcollonval](https://github.com/fcollonval))
+- Remove unused modelDBFactory [#13213](https://github.com/jupyterlab/jupyterlab/pull/13213) ([@fcollonval](https://github.com/fcollonval))
+- Update docs to `jupyter_server_config.py` [#13208](https://github.com/jupyterlab/jupyterlab/pull/13208) ([@jtpio](https://github.com/jtpio))
+- Fix removing out of view cells [#13194](https://github.com/jupyterlab/jupyterlab/pull/13194) ([@fcollonval](https://github.com/fcollonval))
+- Fix broken links in RELEASE.md file [#13193](https://github.com/jupyterlab/jupyterlab/pull/13193) ([@brichet](https://github.com/brichet))
+- Drop node-fetch for galata helpers [#13029](https://github.com/jupyterlab/jupyterlab/pull/13029) ([@fcollonval](https://github.com/fcollonval))
+- Fix lumino API documentation links [#13021](https://github.com/jupyterlab/jupyterlab/pull/13021) ([@fcollonval](https://github.com/fcollonval))
+- Support stateStorage for API calls [#13015](https://github.com/jupyterlab/jupyterlab/pull/13015) ([@fcollonval](https://github.com/fcollonval))
+- Fix customize expected reference [#13009](https://github.com/jupyterlab/jupyterlab/pull/13009) ([@fcollonval](https://github.com/fcollonval))
+- Update to Lumino 2 [#12992](https://github.com/jupyterlab/jupyterlab/pull/12992) ([@afshin](https://github.com/afshin))
+- Force using nbconvert v7 or higher for documentation [#12990](https://github.com/jupyterlab/jupyterlab/pull/12990) ([@fcollonval](https://github.com/fcollonval))
+- Update to TypeScript 4.7 in the migration guide [#12985](https://github.com/jupyterlab/jupyterlab/pull/12985) ([@jtpio](https://github.com/jtpio))
+- Add notification queue and display using toast [#12959](https://github.com/jupyterlab/jupyterlab/pull/12959) ([@telamonian](https://github.com/telamonian))
+- Prompt for renaming at first manual save [#12953](https://github.com/jupyterlab/jupyterlab/pull/12953) ([@fcollonval](https://github.com/fcollonval))
+- LSP follow-up [#12899](https://github.com/jupyterlab/jupyterlab/pull/12899) ([@trungleduc](https://github.com/trungleduc))
+- Split commands in two blocks in the contributing guide [#12898](https://github.com/jupyterlab/jupyterlab/pull/12898) ([@jtpio](https://github.com/jtpio))
+- Document building JupyterLab on osx-arm64 platforms [#12882](https://github.com/jupyterlab/jupyterlab/pull/12882) ([@SylvainCorlay](https://github.com/SylvainCorlay))
+- Add alt text to documentation [#12879](https://github.com/jupyterlab/jupyterlab/pull/12879) ([@isabela-pf](https://github.com/isabela-pf))
+- Remove reference to unmaintained nb_conda_kernels [#12878](https://github.com/jupyterlab/jupyterlab/pull/12878) ([@SylvainCorlay](https://github.com/SylvainCorlay))
+- Add license header fix job [#12872](https://github.com/jupyterlab/jupyterlab/pull/12872) ([@fcollonval](https://github.com/fcollonval))
+- New extension manager [#12866](https://github.com/jupyterlab/jupyterlab/pull/12866) ([@fcollonval](https://github.com/fcollonval))
+- Run kernel on cell execution when no kernel [#12858](https://github.com/jupyterlab/jupyterlab/pull/12858) ([@a3626a](https://github.com/a3626a))
+- Don't suggest deprecated command [#12855](https://github.com/jupyterlab/jupyterlab/pull/12855) ([@ryanlovett](https://github.com/ryanlovett))
+- Store Y updates [#12852](https://github.com/jupyterlab/jupyterlab/pull/12852) ([@davidbrochart](https://github.com/davidbrochart))
+- Fixes renaming files from title while using a custom drive [#12849](https://github.com/jupyterlab/jupyterlab/pull/12849) ([@hbcarlos](https://github.com/hbcarlos))
+- Removes info about meeting notes on Binder [#12847](https://github.com/jupyterlab/jupyterlab/pull/12847) ([@JasonWeill](https://github.com/JasonWeill))
+- Adds version maintenance policy [#12829](https://github.com/jupyterlab/jupyterlab/pull/12829) ([@JasonWeill](https://github.com/JasonWeill))
+- #12717 Add a new section: automation of local dev environments [#12806](https://github.com/jupyterlab/jupyterlab/pull/12806) ([@markgreene74](https://github.com/markgreene74))
+- Use Vega SVG renderer to drop canvas dependency [#12785](https://github.com/jupyterlab/jupyterlab/pull/12785) ([@fcollonval](https://github.com/fcollonval))
+- Removes lighthouse and markdown-loader-jest [#12776](https://github.com/jupyterlab/jupyterlab/pull/12776) ([@fcollonval](https://github.com/fcollonval))
+- Explicitly set language to `en` in `conf.py` [#12707](https://github.com/jupyterlab/jupyterlab/pull/12707) ([@jtpio](https://github.com/jtpio))
+- Split the Document Manager extension into multiple plugins [#12701](https://github.com/jupyterlab/jupyterlab/pull/12701) ([@jtpio](https://github.com/jtpio))
+- Add more explanation for internationalization (translation python package) [#12635](https://github.com/jupyterlab/jupyterlab/pull/12635) ([@a3626a](https://github.com/a3626a))
+- Fix failing check links [#12627](https://github.com/jupyterlab/jupyterlab/pull/12627) ([@jtpio](https://github.com/jtpio))
+- Update README wording [#12610](https://github.com/jupyterlab/jupyterlab/pull/12610) ([@fcollonval](https://github.com/fcollonval))
 
-- Skip checking for updates in UI tests [#14609](https://github.com/jupyterlab/jupyterlab/pull/14609) ([@fcollonval](https://github.com/fcollonval))
-- Fix CI: remove/update broken docs links [#14414](https://github.com/jupyterlab/jupyterlab/pull/14414) ([@krassowski](https://github.com/krassowski))
-- Fix documentation build on CI [#14423](https://github.com/jupyterlab/jupyterlab/pull/14423) ([@jtpio](https://github.com/jtpio))
+#### API and Breaking Changes
 
-### Documentation improvements
+- Harmonizes form renderer ids [#14415](https://github.com/jupyterlab/jupyterlab/pull/14415) ([@brichet](https://github.com/brichet))
+- Remove deprecated code [#14160](https://github.com/jupyterlab/jupyterlab/pull/14160) ([@fcollonval](https://github.com/fcollonval))
+- Move the file name searcher to the file browser toolbar [#14064](https://github.com/jupyterlab/jupyterlab/pull/14064) ([@jtpio](https://github.com/jtpio))
+- Using metadataform for default notebooktools [#14026](https://github.com/jupyterlab/jupyterlab/pull/14026) ([@brichet](https://github.com/brichet))
+- Remove vdom packages [#13949](https://github.com/jupyterlab/jupyterlab/pull/13949) ([@fcollonval](https://github.com/fcollonval))
+- Fix LSP adapter errors on tab close [#13918](https://github.com/jupyterlab/jupyterlab/pull/13918) ([@afshin](https://github.com/afshin))
+- Switch to VEGALITE5_MIME_TYPE [#13893](https://github.com/jupyterlab/jupyterlab/pull/13893) ([@ChristopherDavisUCI](https://github.com/ChristopherDavisUCI))
+- upgrade to MathJax 3 \[with git history\] [#13877](https://github.com/jupyterlab/jupyterlab/pull/13877) ([@dlqqq](https://github.com/dlqqq))
+- Improve form renderer registry [#13823](https://github.com/jupyterlab/jupyterlab/pull/13823) ([@fcollonval](https://github.com/fcollonval))
+- Reduces the context of the form used in metadataform [#13781](https://github.com/jupyterlab/jupyterlab/pull/13781) ([@brichet](https://github.com/brichet))
+- Merge Component registries [#13769](https://github.com/jupyterlab/jupyterlab/pull/13769) ([@brichet](https://github.com/brichet))
+- Remove deprecated `window.jupyterlab` [#13767](https://github.com/jupyterlab/jupyterlab/pull/13767) ([@jtpio](https://github.com/jtpio))
+- Upgrades Python to 3.10, Node to 18 [#13722](https://github.com/jupyterlab/jupyterlab/pull/13722) ([@JasonWeill](https://github.com/JasonWeill))
+- Remove not needed `Completer.IRenderer.sanitizer` [#13700](https://github.com/jupyterlab/jupyterlab/pull/13700) ([@fcollonval](https://github.com/fcollonval))
+- Remove old completer API [#13615](https://github.com/jupyterlab/jupyterlab/pull/13615) ([@krassowski](https://github.com/krassowski))
+- Remove old editor user caret widget (dead code) and selection style [#13586](https://github.com/jupyterlab/jupyterlab/pull/13586) ([@fcollonval](https://github.com/fcollonval))
+- Drop the `moment` dependency [#13469](https://github.com/jupyterlab/jupyterlab/pull/13469) ([@jtpio](https://github.com/jtpio))
+- Move the toggle file browser logic to the widget [#13466](https://github.com/jupyterlab/jupyterlab/pull/13466) ([@brichet](https://github.com/brichet))
+- enable document model specific collaboration [#13458](https://github.com/jupyterlab/jupyterlab/pull/13458) ([@dlqqq](https://github.com/dlqqq))
+- Extract @jupyterlab/shared-models to @jupyter-notebook/ydoc [#13389](https://github.com/jupyterlab/jupyterlab/pull/13389) ([@fcollonval](https://github.com/fcollonval))
+- Store document info in the state not in a separate context map out of the document interface. [#13317](https://github.com/jupyterlab/jupyterlab/pull/13317) ([@fcollonval](https://github.com/fcollonval))
+- Drop modelDB from code editor [#13247](https://github.com/jupyterlab/jupyterlab/pull/13247) ([@fcollonval](https://github.com/fcollonval))
+- Use file ID [#13246](https://github.com/jupyterlab/jupyterlab/pull/13246) ([@davidbrochart](https://github.com/davidbrochart))
+- Relax doc provider API [#13214](https://github.com/jupyterlab/jupyterlab/pull/13214) ([@fcollonval](https://github.com/fcollonval))
+- Remove unused modelDBFactory [#13213](https://github.com/jupyterlab/jupyterlab/pull/13213) ([@fcollonval](https://github.com/fcollonval))
+- Improve shared-models API [#13168](https://github.com/jupyterlab/jupyterlab/pull/13168) ([@fcollonval](https://github.com/fcollonval))
+- Drop node-fetch for galata helpers [#13029](https://github.com/jupyterlab/jupyterlab/pull/13029) ([@fcollonval](https://github.com/fcollonval))
+- New extension manager [#12866](https://github.com/jupyterlab/jupyterlab/pull/12866) ([@fcollonval](https://github.com/fcollonval))
+- Fixes renaming files from title while using a custom drive [#12849](https://github.com/jupyterlab/jupyterlab/pull/12849) ([@hbcarlos](https://github.com/hbcarlos))
+- Split the Document Manager extension into multiple plugins [#12701](https://github.com/jupyterlab/jupyterlab/pull/12701) ([@jtpio](https://github.com/jtpio))
+- Add events service [#12667](https://github.com/jupyterlab/jupyterlab/pull/12667) ([@afshin](https://github.com/afshin))
 
-- Fix broken links in galata/README.md [#14451](https://github.com/jupyterlab/jupyterlab/pull/14451) ([@gabalafou](https://github.com/gabalafou))
-- Fix documentation build on CI [#14423](https://github.com/jupyterlab/jupyterlab/pull/14423) ([@jtpio](https://github.com/jtpio))
-- Backport on branch 3.6.x (Updates announcements to better conform to RFC atom standard. (#14480)) [#14499](https://github.com/jupyterlab/jupyterlab/pull/14499) ([@fcollonval](https://github.com/fcollonval))
+#### Contributors to this release
 
-### Contributors to this release
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-07-13&to=2023-04-27&type=c))
 
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-03-31&to=2023-05-31&type=c))
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+## v3.6
 
-## 3.6.3
+### 3.6.3
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.2...639a54c6b8ae9e8375f952d38539a233447aca73))
 
-### Maintenance and upkeep improvements
+#### Maintenance and upkeep improvements
 
 - Bump lumino 1.x [#14286](https://github.com/jupyterlab/jupyterlab/pull/14286) ([@fcollonval](https://github.com/fcollonval))
 - Provide @jupyterlab/shared-models as singleton [#14229](https://github.com/jupyterlab/jupyterlab/pull/14229) ([@fcollonval](https://github.com/fcollonval))
 
-### Documentation improvements
+#### Documentation improvements
 
 - Provide @jupyterlab/shared-models as singleton [#14229](https://github.com/jupyterlab/jupyterlab/pull/14229) ([@fcollonval](https://github.com/fcollonval))
 
-### Contributors to this release
+#### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-03-20&to=2023-03-30&type=c))
 
 [@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-03-20..2023-03-30&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2023-03-20..2023-03-30&type=Issues) | [@brichet](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrichet+updated%3A2023-03-20..2023-03-30&type=Issues) | [@damiend97](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adamiend97+updated%3A2023-03-20..2023-03-30&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-03-20..2023-03-30&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-03-20..2023-03-30&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2023-03-20..2023-03-30&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-03-20..2023-03-30&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-03-20..2023-03-30&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-03-20..2023-03-30&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-03-20..2023-03-30&type=Issues)
 
-## 3.6.2
+### 3.6.2
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.1...faeab2c33cf857bef14b9e26ff9ec22cf82aa9b1))
 
-### Bugs fixed
+#### Bugs fixed
 
 - Fix save as without changing the file name [#14212](https://github.com/jupyterlab/jupyterlab/pull/14212) ([@hbcarlos](https://github.com/hbcarlos))
 - Fix save as in collaborative mode [#14182](https://github.com/jupyterlab/jupyterlab/pull/14182) ([@hbcarlos](https://github.com/hbcarlos))
@@ -128,37 +1342,37 @@
 - Use local paths instead of driveName:path in the shared model [#13866](https://github.com/jupyterlab/jupyterlab/pull/13866) ([@hbcarlos](https://github.com/hbcarlos))
 - use singleton boolean type for codemirror `lineWiseCopyCut` setting [#14055](https://github.com/jupyterlab/jupyterlab/pull/14055) ([@bollwyvl](https://github.com/bollwyvl))
 
-### Maintenance and upkeep improvements
+#### Maintenance and upkeep improvements
 
 - Fix integrity [#14226](https://github.com/jupyterlab/jupyterlab/pull/14226) ([@fcollonval](https://github.com/fcollonval))
 - Increases timeout  [#14045](https://github.com/jupyterlab/jupyterlab/pull/14045) ([@brichet](https://github.com/brichet))
 - Use Python 3.11 for js-debugger tests [#13941](https://github.com/jupyterlab/jupyterlab/pull/13941) ([@fcollonval](https://github.com/fcollonval))
 - Fix verdaccio start up with nodejs 18.14.0 [#13959](https://github.com/jupyterlab/jupyterlab/pull/13959) ([@fcollonval](https://github.com/fcollonval))
 
-### Documentation improvements
+#### Documentation improvements
 
 - Add note for jest configuration and JLab 3.6 [#14207](https://github.com/jupyterlab/jupyterlab/pull/14207) ([@fcollonval](https://github.com/fcollonval))
 
-### Contributors to this release
+#### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-02-03&to=2023-03-20&type=c))
 
 [@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2023-02-03..2023-03-20&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2023-02-03..2023-03-20&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2023-02-03..2023-03-20&type=Issues) | [@brichet](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrichet+updated%3A2023-02-03..2023-03-20&type=Issues) | [@bt-](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abt-+updated%3A2023-02-03..2023-03-20&type=Issues) | [@dlqqq](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adlqqq+updated%3A2023-02-03..2023-03-20&type=Issues) | [@domoritz](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adomoritz+updated%3A2023-02-03..2023-03-20&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2023-02-03..2023-03-20&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2023-02-03..2023-03-20&type=Issues) | [@fperez](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afperez+updated%3A2023-02-03..2023-03-20&type=Issues) | [@gabalafou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agabalafou+updated%3A2023-02-03..2023-03-20&type=Issues) | [@GabrielaVives](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AGabrielaVives+updated%3A2023-02-03..2023-03-20&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2023-02-03..2023-03-20&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2023-02-03..2023-03-20&type=Issues) | [@HaudinFlorence](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AHaudinFlorence+updated%3A2023-02-03..2023-03-20&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2023-02-03..2023-03-20&type=Issues) | [@ianhi](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aianhi+updated%3A2023-02-03..2023-03-20&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2023-02-03..2023-03-20&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2023-02-03..2023-03-20&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2023-02-03..2023-03-20&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2023-02-03..2023-03-20&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2023-02-03..2023-03-20&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2023-02-03..2023-03-20&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2023-02-03..2023-03-20&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2023-02-03..2023-03-20&type=Issues) | [@mlucool](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amlucool+updated%3A2023-02-03..2023-03-20&type=Issues) | [@psychemedia](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Apsychemedia+updated%3A2023-02-03..2023-03-20&type=Issues) | [@telamonian](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atelamonian+updated%3A2023-02-03..2023-03-20&type=Issues) | [@tonyfast](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atonyfast+updated%3A2023-02-03..2023-03-20&type=Issues) | [@vidartf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Avidartf+updated%3A2023-02-03..2023-03-20&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2023-02-03..2023-03-20&type=Issues)
 
-## 3.6.1
+### 3.6.1
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.6.0...ef12e4b9e7874489bb6bf6cda91dd08697f2b3c9))
 
-### Bugs fixed
+#### Bugs fixed
 
 - Revert target to ES2017 [#13914](https://github.com/jupyterlab/jupyterlab/pull/13914) ([@fcollonval](https://github.com/fcollonval))
 
-### Documentation improvements
+#### Documentation improvements
 
 - Revert target to ES2017 [#13914](https://github.com/jupyterlab/jupyterlab/pull/13914) ([@fcollonval](https://github.com/fcollonval))
 - Fix minor typo in urls.rst [#13902](https://github.com/jupyterlab/jupyterlab/pull/13902) ([@chbrandt](https://github.com/chbrandt))
 
-### Contributors to this release
+#### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2023-02-02&to=2023-02-03&type=c))
 
@@ -321,84 +1535,11 @@
 
 ## v3.5
 
-### 3.5.3
-
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.5.2...38557b9cc49aca310264476c9c9d9f003891dcb2))
-
-#### Bugs fixed
-
-- Fix `preferred_dir` for examples [#13788](https://github.com/jupyterlab/jupyterlab/pull/13788) ([@fcollonval](https://github.com/fcollonval))
-- Bump canvas to version with nodejs 18 binaries [#13783](https://github.com/jupyterlab/jupyterlab/pull/13783) ([@fcollonval](https://github.com/fcollonval))
-- Fix handling of `settingEditorType` [#13761](https://github.com/jupyterlab/jupyterlab/pull/13761) ([@jtpio](https://github.com/jtpio))
-- Write the browser open files for test [#13634](https://github.com/jupyterlab/jupyterlab/pull/13634) ([@fcollonval](https://github.com/fcollonval))
-
-#### Maintenance and upkeep improvements
-
-- Clean examples [#13812](https://github.com/jupyterlab/jupyterlab/pull/13812) ([@fcollonval](https://github.com/fcollonval))
-- Fix `preferred_dir` for examples [#13788](https://github.com/jupyterlab/jupyterlab/pull/13788) ([@fcollonval](https://github.com/fcollonval))
-- Bump canvas to version with nodejs 18 binaries [#13783](https://github.com/jupyterlab/jupyterlab/pull/13783) ([@fcollonval](https://github.com/fcollonval))
-- Drop the dependency on `@jupyterlab/buildutils` in `@jupyterlab/builder` [#13741](https://github.com/jupyterlab/jupyterlab/pull/13741) ([@jtpio](https://github.com/jtpio))
-- Write the browser open files for test [#13634](https://github.com/jupyterlab/jupyterlab/pull/13634) ([@fcollonval](https://github.com/fcollonval))
-
-#### Documentation improvements
-
-- Force jupyter-server v1 to check against notebook v6 [#13716](https://github.com/jupyterlab/jupyterlab/pull/13716) ([@fcollonval](https://github.com/fcollonval))
-
-#### Other merged PRs
-
-#### Contributors to this release
-
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-12-19&to=2023-01-23&type=c))
-
-[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-12-19..2023-01-23&type=Issues) | [@andrii-i](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrii-i+updated%3A2022-12-19..2023-01-23&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-12-19..2023-01-23&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2022-12-19..2023-01-23&type=Issues) | [@brichet](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrichet+updated%3A2022-12-19..2023-01-23&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-12-19..2023-01-23&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-12-19..2023-01-23&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-12-19..2023-01-23&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-12-19..2023-01-23&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-12-19..2023-01-23&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-12-19..2023-01-23&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-12-19..2023-01-23&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-12-19..2023-01-23&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-12-19..2023-01-23&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-12-19..2023-01-23&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-12-19..2023-01-23&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-12-19..2023-01-23&type=Issues)
-
-### 3.5.2
-
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.5.1...d309941e9019ada44d1124956dff9a3ec1a54c48))
-
-#### Bugs fixed
-
-- use jupyter_config_dir instead of config_path\[0\] for workspaces, settings [#13589](https://github.com/jupyterlab/jupyterlab/pull/13589) ([@minrk](https://github.com/minrk))
-
-#### Maintenance and upkeep improvements
-
-- Fix Python test dependencies [#13508](https://github.com/jupyterlab/jupyterlab/pull/13508) ([@fcollonval](https://github.com/fcollonval))
-
-#### Contributors to this release
-
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-12-05&to=2022-12-19&type=c))
-
-[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-12-05..2022-12-19&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-12-05..2022-12-19&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-12-05..2022-12-19&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-12-05..2022-12-19&type=Issues) | [@HaudinFlorence](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AHaudinFlorence+updated%3A2022-12-05..2022-12-19&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-12-05..2022-12-19&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-12-05..2022-12-19&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-12-05..2022-12-19&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-12-05..2022-12-19&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-12-05..2022-12-19&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-12-05..2022-12-19&type=Issues) | [@vidartf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Avidartf+updated%3A2022-12-05..2022-12-19&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-12-05..2022-12-19&type=Issues)
-
-### 3.5.1
-
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.5.0...eaa0d1e106097b05da27f305227e5e5007723e61))
-
-#### Bugs fixed
-
-- Fixes sharing metadata [#13491](https://github.com/jupyterlab/jupyterlab/pull/13491) ([@hbcarlos](https://github.com/hbcarlos))
-
-#### Maintenance and upkeep improvements
-
-- Bump sanitize-html to 2.7.3 [#13509](https://github.com/jupyterlab/jupyterlab/pull/13509) ([@fcollonval](https://github.com/fcollonval))
-- Switch to releaser v2 [#13327](https://github.com/jupyterlab/jupyterlab/pull/13327) ([@blink1073](https://github.com/blink1073))
-
-#### Documentation improvements
-
-- Update the tutorial to reflect the changes in the latest cookiecutter… [#13417](https://github.com/jupyterlab/jupyterlab/pull/13417) ([@frivas-at-navteca](https://github.com/frivas-at-navteca))
-- Remove changelog for pre-releases [#13312](https://github.com/jupyterlab/jupyterlab/pull/13312) ([@fcollonval](https://github.com/fcollonval))
-
-#### Contributors to this release
-
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-10-24&to=2022-12-01&type=c))
-
-[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-10-24..2022-12-01&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-10-24..2022-12-01&type=Issues) | [@brichet](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abrichet+updated%3A2022-10-24..2022-12-01&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-10-24..2022-12-01&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-10-24..2022-12-01&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-10-24..2022-12-01&type=Issues) | [@HaudinFlorence](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AHaudinFlorence+updated%3A2022-10-24..2022-12-01&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-10-24..2022-12-01&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-10-24..2022-12-01&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-10-24..2022-12-01&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-10-24..2022-12-01&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-10-24..2022-12-01&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-10-24..2022-12-01&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-10-24..2022-12-01&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-10-24..2022-12-01&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-10-24..2022-12-01&type=Issues)
-
-### 3.5.0
+## 3.5.0
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.8...225e7ab0844a0284bf50a567de505eb4650ec122))
 
-#### Enhancements made
+### Enhancements made
 
 - Optimize text mimerenderer: ansi vs autolink [#13202](https://github.com/jupyterlab/jupyterlab/pull/13202) ([@vidartf](https://github.com/vidartf))
 - Collapse debugger panel when disabling debugger [#13088](https://github.com/jupyterlab/jupyterlab/pull/13088) ([@yanmulin](https://github.com/yanmulin))
@@ -406,87 +1547,57 @@
 - Prompt for renaming at first manual save [#12953](https://github.com/jupyterlab/jupyterlab/pull/12953) ([@fcollonval](https://github.com/fcollonval))
 - Raise ceiling on `jupyter_server` dependency to \< 3 [#13068](https://github.com/jupyterlab/jupyterlab/pull/13068) ([@Zsailer](https://github.com/Zsailer))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Set `isUntitled` to false on document path changes [#13268](https://github.com/jupyterlab/jupyterlab/pull/13268) ([@fcollonval](https://github.com/fcollonval))
 - Don't dispose the notebook metadata editor on active cell change [#13259](https://github.com/jupyterlab/jupyterlab/pull/13259) ([@fcollonval](https://github.com/fcollonval))
 - Use keystroke format consistent with menus [#13200](https://github.com/jupyterlab/jupyterlab/pull/13200) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix memory leaks [#13229](https://github.com/jupyterlab/jupyterlab/pull/13229) ([@fcollonval](https://github.com/fcollonval))
 - Bump to the latest Lumino 1.x [#13190](https://github.com/jupyterlab/jupyterlab/pull/13190) ([@fcollonval](https://github.com/fcollonval))
 - Update branch configuration [#13184](https://github.com/jupyterlab/jupyterlab/pull/13184) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Update example documentation: `lab -> app` [#13223](https://github.com/jupyterlab/jupyterlab/pull/13223) ([@davidbrochart](https://github.com/davidbrochart))
 - Prompt for renaming at first manual save [#12953](https://github.com/jupyterlab/jupyterlab/pull/12953) ([@fcollonval](https://github.com/fcollonval))
 - Update branch configuration [#13184](https://github.com/jupyterlab/jupyterlab/pull/13184) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-10-04&to=2022-10-24&type=c))
-
 [@Carreau](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ACarreau+updated%3A2022-10-04..2022-10-24&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-10-04..2022-10-24&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-10-04..2022-10-24&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-10-04..2022-10-24&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-10-04..2022-10-24&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-10-04..2022-10-24&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-10-04..2022-10-24&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-10-04..2022-10-24&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-10-04..2022-10-24&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-10-04..2022-10-24&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-10-04..2022-10-24&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-10-04..2022-10-24&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2022-10-04..2022-10-24&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-10-04..2022-10-24&type=Issues)
 
 ## v3.4
 
-### 3.4.8
-
-([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.7...f382949b11c54384eee8e58a0d7defe879c21718))
-
-#### Enhancements made
-
-- Adjust CSS styles degrading performance in Chromium browsers [#13159](https://github.com/jupyterlab/jupyterlab/pull/13159) ([@krassowski](https://github.com/krassowski))
-
-#### Bugs fixed
-
-- Always show tooltip in hover box even if edges are out of view [#13161](https://github.com/jupyterlab/jupyterlab/pull/13161) ([@krassowski](https://github.com/krassowski))
-- Fix workspace URL while cloning a workspace [#12794](https://github.com/jupyterlab/jupyterlab/pull/12794) ([@aditya211935](https://github.com/aditya211935))
-- Switch back to `display` to hide tabs [#13103](https://github.com/jupyterlab/jupyterlab/pull/13103) ([@fcollonval](https://github.com/fcollonval))
-- Preserve kernel icon aspect ratio [#13122](https://github.com/jupyterlab/jupyterlab/pull/13122) ([@fcollonval](https://github.com/fcollonval))
-- Fix cell toolbar layout [#13059](https://github.com/jupyterlab/jupyterlab/pull/13059) ([@kulsoomzahra](https://github.com/kulsoomzahra))
-- Avoid menus overflowing in small screens [#13109](https://github.com/jupyterlab/jupyterlab/pull/13109) ([@steff456](https://github.com/steff456))
-
-#### Maintenance and upkeep improvements
-
-- Fix storybook error [#13135](https://github.com/jupyterlab/jupyterlab/pull/13135) ([@fcollonval](https://github.com/fcollonval))
-- Remove xeus-python installation for debugger test [#13113](https://github.com/jupyterlab/jupyterlab/pull/13113) ([@fcollonval](https://github.com/fcollonval))
-- Resolve core_path before calling nodejs [#13126](https://github.com/jupyterlab/jupyterlab/pull/13126) ([@fcollonval](https://github.com/fcollonval))
-
-#### Contributors to this release
-
-([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-09-12&to=2022-10-04&type=c))
-
-[@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-09-12..2022-10-04&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-09-12..2022-10-04&type=Issues) | [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2022-09-12..2022-10-04&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-09-12..2022-10-04&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-09-12..2022-10-04&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-09-12..2022-10-04&type=Issues) | [@firai](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afirai+updated%3A2022-09-12..2022-10-04&type=Issues) | [@gabalafou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agabalafou+updated%3A2022-09-12..2022-10-04&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-09-12..2022-10-04&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-09-12..2022-10-04&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-09-12..2022-10-04&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-09-12..2022-10-04&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-09-12..2022-10-04&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-09-12..2022-10-04&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-09-12..2022-10-04&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-09-12..2022-10-04&type=Issues)
-
-### 3.4.7
+## 3.4.7
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.6...f713e06179bb5e57fc03da5fcf49b9c8e543f684))
 
-#### Enhancements made
+### Enhancements made
 
 - Get package name from pyproject if available [#13076](https://github.com/jupyterlab/jupyterlab/pull/13076) ([@blink1073](https://github.com/blink1073))
 - Fix blurry icons in Launcher at 400% Zoom [#13065](https://github.com/jupyterlab/jupyterlab/pull/13065) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Added mimeType for .webp image files [#13066](https://github.com/jupyterlab/jupyterlab/pull/13066) ([@alec-kr](https://github.com/alec-kr))
 - Fix URL when falling back to node-fetch [#13067](https://github.com/jupyterlab/jupyterlab/pull/13067) ([@fcollonval](https://github.com/fcollonval))
 - Keep completer visible when anchor is horizontally scrolled out of view [#13046](https://github.com/jupyterlab/jupyterlab/pull/13046) ([@krassowski](https://github.com/krassowski))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-09-05&to=2022-09-12&type=c))
 
 [@agoose77](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aagoose77+updated%3A2022-09-05..2022-09-12&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-09-05..2022-09-12&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-09-05..2022-09-12&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-09-05..2022-09-12&type=Issues) | [@gabalafou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agabalafou+updated%3A2022-09-05..2022-09-12&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-09-05..2022-09-12&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-09-05..2022-09-12&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-09-05..2022-09-12&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-09-05..2022-09-12&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-09-05..2022-09-12&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-09-05..2022-09-12&type=Issues)
 
-### 3.4.6
+## 3.4.6
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.5...76459a67511b1c54df853e52d83a7fbd3badae7b))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Update Python icon to be PSF Trademark compliant [#13044](https://github.com/jupyterlab/jupyterlab/pull/13044) ([@fcollonval](https://github.com/fcollonval))
 - Reorder of webpackConfig merge [#13042](https://github.com/jupyterlab/jupyterlab/pull/13042) ([@fcollonval](https://github.com/fcollonval))
@@ -496,30 +1607,30 @@
 - Add scrolling to `debugger` variable renderer [#12968](https://github.com/jupyterlab/jupyterlab/pull/12968) ([@firai](https://github.com/firai))
 - Fix resizing and selection of debugger variable explorer grid [#12943](https://github.com/jupyterlab/jupyterlab/pull/12943) ([@firai](https://github.com/firai))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix lumino API documentation links [#13021](https://github.com/jupyterlab/jupyterlab/pull/13021) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix lumino API documentation links [#13021](https://github.com/jupyterlab/jupyterlab/pull/13021) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-08-10&to=2022-09-05&type=c))
 
 [@ajbozarth](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aajbozarth+updated%3A2022-08-10..2022-09-05&type=Issues) | [@athornton](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aathornton+updated%3A2022-08-10..2022-09-05&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-08-10..2022-09-05&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-08-10..2022-09-05&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-08-10..2022-09-05&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2022-08-10..2022-09-05&type=Issues) | [@ian-r-rose](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aian-r-rose+updated%3A2022-08-10..2022-09-05&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2022-08-10..2022-09-05&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-08-10..2022-09-05&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-08-10..2022-09-05&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2022-08-10..2022-09-05&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-08-10..2022-09-05&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-08-10..2022-09-05&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-08-10..2022-09-05&type=Issues) | [@KrishnaKumarHariprasannan](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AKrishnaKumarHariprasannan+updated%3A2022-08-10..2022-09-05&type=Issues) | [@malemburg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amalemburg+updated%3A2022-08-10..2022-09-05&type=Issues) | [@manfromjupyter](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amanfromjupyter+updated%3A2022-08-10..2022-09-05&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-08-10..2022-09-05&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-08-10..2022-09-05&type=Issues) | [@mlucool](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amlucool+updated%3A2022-08-10..2022-09-05&type=Issues) | [@saulshanabrook](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Asaulshanabrook+updated%3A2022-08-10..2022-09-05&type=Issues) | [@telamonian](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atelamonian+updated%3A2022-08-10..2022-09-05&type=Issues) | [@tgeorgeux](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atgeorgeux+updated%3A2022-08-10..2022-09-05&type=Issues) | [@trallard](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrallard+updated%3A2022-08-10..2022-09-05&type=Issues) | [@VersBersh](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AVersBersh+updated%3A2022-08-10..2022-09-05&type=Issues) | [@vidartf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Avidartf+updated%3A2022-08-10..2022-09-05&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-08-10..2022-09-05&type=Issues)
 
-### 3.4.5
+## 3.4.5
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.4...385ea4be3d3e65e1f62d82e8bfedbe554736b2bb))
 
-#### Enhancements made
+### Enhancements made
 
 - Add an option to enable "fast checks" of the jupyter lab build. [#12844](https://github.com/jupyterlab/jupyterlab/pull/12844) ([@thetorpedodog](https://github.com/thetorpedodog))
 - Add .webp filetype in docRegistry. [#12839](https://github.com/jupyterlab/jupyterlab/pull/12839) ([@yangql176](https://github.com/yangql176))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Only show "Shut Down Kernel" if kernel is running [#12919](https://github.com/jupyterlab/jupyterlab/pull/12919) ([@krassowski](https://github.com/krassowski))
 - Fix JSON Settings Editor [#12892](https://github.com/jupyterlab/jupyterlab/pull/12892) ([@krassowski](https://github.com/krassowski))
@@ -527,11 +1638,11 @@
 - Fix kernel in the statusbar does not match the actual [#12865](https://github.com/jupyterlab/jupyterlab/pull/12865) ([@hsuanxyz](https://github.com/hsuanxyz))
 - Adjust css to not leave trace of deleted widgets [#12838](https://github.com/jupyterlab/jupyterlab/pull/12838) ([@thomasaarholt](https://github.com/thomasaarholt))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Log launcher error to console [#12909](https://github.com/jupyterlab/jupyterlab/pull/12909) ([@trungleduc](https://github.com/trungleduc))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add alt text to documentation [#12879](https://github.com/jupyterlab/jupyterlab/pull/12879) ([@isabela-pf](https://github.com/isabela-pf))
 - Split commands in two blocks in the contributing guide [#12898](https://github.com/jupyterlab/jupyterlab/pull/12898) ([@jtpio](https://github.com/jtpio))
@@ -539,17 +1650,17 @@
 - Document building JupyterLab on osx-arm64 platforms [#12882](https://github.com/jupyterlab/jupyterlab/pull/12882) ([@SylvainCorlay](https://github.com/SylvainCorlay))
 - Don't suggest deprecated command [#12855](https://github.com/jupyterlab/jupyterlab/pull/12855) ([@ryanlovett](https://github.com/ryanlovett))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-07-21&to=2022-08-10&type=c))
 
 [@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-07-21..2022-08-10&type=Issues) | [@agoose77](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aagoose77+updated%3A2022-07-21..2022-08-10&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-07-21..2022-08-10&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-07-21..2022-08-10&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-07-21..2022-08-10&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-07-21..2022-08-10&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-07-21..2022-08-10&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2022-07-21..2022-08-10&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-07-21..2022-08-10&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-07-21..2022-08-10&type=Issues) | [@martinRenou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AmartinRenou+updated%3A2022-07-21..2022-08-10&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-07-21..2022-08-10&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-07-21..2022-08-10&type=Issues) | [@ryanlovett](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aryanlovett+updated%3A2022-07-21..2022-08-10&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-07-21..2022-08-10&type=Issues) | [@telamonian](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atelamonian+updated%3A2022-07-21..2022-08-10&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2022-07-21..2022-08-10&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-07-21..2022-08-10&type=Issues)
 
-### 3.4.4
+## 3.4.4
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.3...998cf0e146fdb7c61c42d9487ebb89c16581faf8))
 
-#### Enhancements made
+### Enhancements made
 
 - Adds version maintenance policy [#12829](https://github.com/jupyterlab/jupyterlab/pull/12829) ([@JasonWeill](https://github.com/JasonWeill))
 - Increase title width in simple mode [#11546](https://github.com/jupyterlab/jupyterlab/pull/11546) ([@SylvainCorlay](https://github.com/SylvainCorlay))
@@ -558,7 +1669,7 @@
 - Optimize debugger editor `eachLine` loops [#12746](https://github.com/jupyterlab/jupyterlab/pull/12746) ([@vidartf](https://github.com/vidartf))
 - Make password inputs not give away how many characters were typed [#12659](https://github.com/jupyterlab/jupyterlab/pull/12659) ([@jasongrout](https://github.com/jasongrout))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Remove drive prefix from the file path when creating the new path [#12824](https://github.com/jupyterlab/jupyterlab/pull/12824) ([@hbcarlos](https://github.com/hbcarlos))
 - Use path to extract `tmpPath` [#12823](https://github.com/jupyterlab/jupyterlab/pull/12823) ([@fcollonval](https://github.com/fcollonval))
@@ -572,7 +1683,7 @@
 - Fix cell toolbar overlap in side-by-side render mode [#12710](https://github.com/jupyterlab/jupyterlab/pull/12710) ([@peytondmurray](https://github.com/peytondmurray))
 - Remove ipywidgets message count in the execution indicator model [#12665](https://github.com/jupyterlab/jupyterlab/pull/12665) ([@trungleduc](https://github.com/trungleduc))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Update verdaccio, start registry on 0.0.0.0 [#12825](https://github.com/jupyterlab/jupyterlab/pull/12825) ([@fcollonval](https://github.com/fcollonval))
 - Use Vega SVG renderer to drop canvas dependency [#12811](https://github.com/jupyterlab/jupyterlab/pull/12811) ([@fcollonval](https://github.com/fcollonval))
@@ -583,31 +1694,31 @@
 - Bump version of `marked` and `@types/marked` [#12747](https://github.com/jupyterlab/jupyterlab/pull/12747) ([@krassowski](https://github.com/krassowski))
 - Drop pre-commit from build dependencies (#12680) [#12706](https://github.com/jupyterlab/jupyterlab/pull/12706) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Adds version maintenance policy [#12829](https://github.com/jupyterlab/jupyterlab/pull/12829) ([@JasonWeill](https://github.com/JasonWeill))
 - Explicitly set language to `en` in `conf.py` [#12712](https://github.com/jupyterlab/jupyterlab/pull/12712) ([@jtpio](https://github.com/jtpio))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-06-07&to=2022-07-21&type=c))
 
 [@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-06-07..2022-07-21&type=Issues) | [@aiqc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aaiqc+updated%3A2022-06-07..2022-07-21&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-06-07..2022-07-21&type=Issues) | [@dlqqq](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adlqqq+updated%3A2022-06-07..2022-07-21&type=Issues) | [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2022-06-07..2022-07-21&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-06-07..2022-07-21&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-06-07..2022-07-21&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-06-07..2022-07-21&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-06-07..2022-07-21&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2022-06-07..2022-07-21&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-06-07..2022-07-21&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-06-07..2022-07-21&type=Issues) | [@JohanMabille](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJohanMabille+updated%3A2022-06-07..2022-07-21&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-06-07..2022-07-21&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2022-06-07..2022-07-21&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-06-07..2022-07-21&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-06-07..2022-07-21&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-06-07..2022-07-21&type=Issues) | [@martinRenou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AmartinRenou+updated%3A2022-06-07..2022-07-21&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-06-07..2022-07-21&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-06-07..2022-07-21&type=Issues) | [@siddartha-10](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Asiddartha-10+updated%3A2022-06-07..2022-07-21&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2022-06-07..2022-07-21&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-06-07..2022-07-21&type=Issues) | [@williamstein](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awilliamstein+updated%3A2022-06-07..2022-07-21&type=Issues)
 
-### 3.4.3
+## 3.4.3
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.2...b05da6fae42dcf5a5ad0dd9b46a8b75d64804799))
 
-#### New features added
+### New features added
 
 - Persistent side-by-side ratio setting [#12633](https://github.com/jupyterlab/jupyterlab/pull/12633) ([@echarles](https://github.com/echarles))
 
-#### Enhancements made
+### Enhancements made
 
 - Persistent side-by-side ratio setting [#12633](https://github.com/jupyterlab/jupyterlab/pull/12633) ([@echarles](https://github.com/echarles))
 - Add "Open in Simple Mode" contextMenu option [#12577](https://github.com/jupyterlab/jupyterlab/pull/12577) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Always check local packages against abspath [#10662](https://github.com/jupyterlab/jupyterlab/pull/10662) ([@mlucool](https://github.com/mlucool))
 - Fix arrow position on unrendered markdown cell [#12660](https://github.com/jupyterlab/jupyterlab/pull/12660) ([@fcollonval](https://github.com/fcollonval))
@@ -618,72 +1729,123 @@
 - Make selected text translucent so the cursor is visible in vim mode [#12520](https://github.com/jupyterlab/jupyterlab/pull/12520) ([@Jessie-Newman](https://github.com/Jessie-Newman))
 - Fix file browser search highlighting bug [#12578](https://github.com/jupyterlab/jupyterlab/pull/12578) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix failing check links [#12627](https://github.com/jupyterlab/jupyterlab/pull/12627) ([@jtpio](https://github.com/jtpio))
 - Force crypto resolution [#12576](https://github.com/jupyterlab/jupyterlab/pull/12576) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add more explanation for internationalization (translation python package) [#12635](https://github.com/jupyterlab/jupyterlab/pull/12635) ([@a3626a](https://github.com/a3626a))
 - Add "Open in Simple Mode" contextMenu option [#12577](https://github.com/jupyterlab/jupyterlab/pull/12577) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-05-13&to=2022-06-07&type=c))
 
 [@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-05-13..2022-06-07&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-05-13..2022-06-07&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2022-05-13..2022-06-07&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-05-13..2022-06-07&type=Issues) | [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2022-05-13..2022-06-07&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-05-13..2022-06-07&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-05-13..2022-06-07&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-05-13..2022-06-07&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-05-13..2022-06-07&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-05-13..2022-06-07&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-05-13..2022-06-07&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2022-05-13..2022-06-07&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-05-13..2022-06-07&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-05-13..2022-06-07&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-05-13..2022-06-07&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-05-13..2022-06-07&type=Issues)
 
-### 3.4.2
+## 3.4.2
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.1...1c8f008679c49e74d8a4ee3c6aa0782dfa6a1d35))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Building extensions fail if not using latest patch [#12571](https://github.com/jupyterlab/jupyterlab/pull/12571) ([@ajbozarth](https://github.com/ajbozarth))
 - fixed shouldOverwrite is never called when rename target exists [#12543](https://github.com/jupyterlab/jupyterlab/pull/12543) ([@ephes](https://github.com/ephes))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Update dependency version [#12535](https://github.com/jupyterlab/jupyterlab/pull/12535) ([@karlaspuldaro](https://github.com/karlaspuldaro))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-05-12&to=2022-05-12&type=c))
 
 [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-05-12..2022-05-12&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-05-12..2022-05-12&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-05-12..2022-05-12&type=Issues) | [@karlaspuldaro](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akarlaspuldaro+updated%3A2022-05-12..2022-05-12&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-05-12..2022-05-12&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-05-12..2022-05-12&type=Issues)
 
-### 3.4.1
+## 3.4.1
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.4.0...d8d94b351da08181d4d5e0493539c0eb082a1516))
 
-#### Enhancements made
+### Enhancements made
 
 - Setting to use the advanced setting editor for the settings [#12466](https://github.com/jupyterlab/jupyterlab/pull/12466) ([@echarles](https://github.com/echarles))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Allow users to yarn link @jupyterlab/builder [#12533](https://github.com/jupyterlab/jupyterlab/pull/12533) ([@ajbozarth](https://github.com/ajbozarth))
 - Get Auto Close Brackets working consistently in Consoles [#12508](https://github.com/jupyterlab/jupyterlab/pull/12508) ([@Jessie-Newman](https://github.com/Jessie-Newman))
 - Handled new dialog creation with no buttons [#12496](https://github.com/jupyterlab/jupyterlab/pull/12496) ([@Jnnamchi](https://github.com/Jnnamchi))
 - Handle missing `preferredPath` from the page config [#12521](https://github.com/jupyterlab/jupyterlab/pull/12521) ([@jtpio](https://github.com/jtpio))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Add cell-toolbar to CI and labeler [#12555](https://github.com/jupyterlab/jupyterlab/pull/12555) ([@fcollonval](https://github.com/fcollonval))
 - Allow bot PRs to be automatically labeled [#12509](https://github.com/jupyterlab/jupyterlab/pull/12509) ([@blink1073](https://github.com/blink1073))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-05-03&to=2022-05-12&type=c))
 
 [@ajbozarth](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aajbozarth+updated%3A2022-05-03..2022-05-12&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-05-03..2022-05-12&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-05-03..2022-05-12&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-05-03..2022-05-12&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-05-03..2022-05-12&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-05-03..2022-05-12&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-05-03..2022-05-12&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-05-03..2022-05-12&type=Issues)
 
-### 3.4.0
+## 3.4.0rc0
+
+([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.4...c394aa25d1845144ee7ebdce611ff12f8d962bb8))
+
+### Enhancements made
+
+- Display default value in setting editor for changed values [#12468](https://github.com/jupyterlab/jupyterlab/pull/12468) ([@echarles](https://github.com/echarles))
+- Uses dark theme for Vega when JupyterLab theme is dark [#12411](https://github.com/jupyterlab/jupyterlab/pull/12411) ([@JasonWeill](https://github.com/JasonWeill))
+- Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar [#12028](https://github.com/jupyterlab/jupyterlab/pull/12028) ([@JasonWeill](https://github.com/JasonWeill))
+- Customize the file browser toolbar via the settings [#12441](https://github.com/jupyterlab/jupyterlab/pull/12441) ([@fcollonval](https://github.com/fcollonval))
+- Wait until file browser commands are ready before activating file browser widget [#12435](https://github.com/jupyterlab/jupyterlab/pull/12435) ([@fcollonval](https://github.com/fcollonval))
+- Add a "New Tab" button that opens the launcher [#12195](https://github.com/jupyterlab/jupyterlab/pull/12195) ([@ajbozarth](https://github.com/ajbozarth))
+- Simplify galata import by proxying `expect` [#12311](https://github.com/jupyterlab/jupyterlab/pull/12311) ([@fcollonval](https://github.com/fcollonval))
+- Open terminal in cwd from launcher [#12250](https://github.com/jupyterlab/jupyterlab/pull/12250) ([@rccern](https://github.com/rccern))
+- Add support for filtering by field names in setting editor [#12082](https://github.com/jupyterlab/jupyterlab/pull/12082) ([@marthacryan](https://github.com/marthacryan))
+- Use transform to quickly switch between tabs. [#11074](https://github.com/jupyterlab/jupyterlab/pull/11074) ([@fcollonval](https://github.com/fcollonval))
+- Pop up select kernel dialog when run a cell without kernel [#12379](https://github.com/jupyterlab/jupyterlab/pull/12379) ([@a3626a](https://github.com/a3626a))
+- Allow LauncherModel to be more extendable [#12344](https://github.com/jupyterlab/jupyterlab/pull/12344) ([@ajbozarth](https://github.com/ajbozarth))
+- Add argument `searchText` and `replaceText` to search and replace commands [#12310](https://github.com/jupyterlab/jupyterlab/pull/12310) ([@fcollonval](https://github.com/fcollonval))
+- Add argument line and column to codemirror go to line command [#12204](https://github.com/jupyterlab/jupyterlab/pull/12204) ([@fcollonval](https://github.com/fcollonval))
+- Default is no virtual rendering + Relax virtual notebook rendering and ensure no structural change until rendering is completed [#12258](https://github.com/jupyterlab/jupyterlab/pull/12258) ([@echarles](https://github.com/echarles))
+
+### Bugs fixed
+
+- Check if process is declared before optional chaining in makeSettings [#12472](https://github.com/jupyterlab/jupyterlab/pull/12472) ([@fcollonval](https://github.com/fcollonval))
+- Signal should only export ISignal publicly [#12471](https://github.com/jupyterlab/jupyterlab/pull/12471) ([@fcollonval](https://github.com/fcollonval))
+- Move cell toolbar below search document widget [#12467](https://github.com/jupyterlab/jupyterlab/pull/12467) ([@fcollonval](https://github.com/fcollonval))
+- Use css variable for font size. [#12255](https://github.com/jupyterlab/jupyterlab/pull/12255) ([@Carreau](https://github.com/Carreau))
+
+### Maintenance and upkeep improvements
+
+- Only show duplicate LabIcon warning in debug mode [#12480](https://github.com/jupyterlab/jupyterlab/pull/12480) ([@ajbozarth](https://github.com/ajbozarth))
+- Update copyright date to 2022 in the about dialog [#12474](https://github.com/jupyterlab/jupyterlab/pull/12474) ([@jtpio](https://github.com/jtpio))
+- Fix update snapshot for 3.4.x [#12462](https://github.com/jupyterlab/jupyterlab/pull/12462) ([@fcollonval](https://github.com/fcollonval))
+- Update benchmark snapshots [#12451](https://github.com/jupyterlab/jupyterlab/pull/12451) ([@fcollonval](https://github.com/fcollonval))
+
+### Documentation improvements
+
+- Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar [#12028](https://github.com/jupyterlab/jupyterlab/pull/12028) ([@JasonWeill](https://github.com/JasonWeill))
+- Customize the file browser toolbar via the settings [#12441](https://github.com/jupyterlab/jupyterlab/pull/12441) ([@fcollonval](https://github.com/fcollonval))
+
+### Deprecated features
+
+- Deprecate FileEditorCodeWrapper [#12381](https://github.com/jupyterlab/jupyterlab/pull/12381) ([@hbcarlos](https://github.com/hbcarlos))
+
+### Contributors to this release
+
+([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-04-15&to=2022-04-28&type=c))
+
+[@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2022-04-15..2022-04-28&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-04-15..2022-04-28&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-04-15..2022-04-28&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-04-15..2022-04-28&type=Issues) | [@gabalafou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agabalafou+updated%3A2022-04-15..2022-04-28&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-04-15..2022-04-28&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-04-15..2022-04-28&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-04-15..2022-04-28&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-04-15..2022-04-28&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-04-15..2022-04-28&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-04-15..2022-04-28&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-04-15..2022-04-28&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-04-15..2022-04-28&type=Issues)
+
+## 3.4.0
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.4...06e043de7cc211e360711fd042b6b474e9b0037b))
 
-#### Enhancements made
+### Enhancements made
 
 - Add ability to open settings editor to specific plugin's settings [#12506](https://github.com/jupyterlab/jupyterlab/pull/12506) ([@fcollonval](https://github.com/fcollonval))
 - Don't sort context menu items by selector [#12505](https://github.com/jupyterlab/jupyterlab/pull/12505) ([@fcollonval](https://github.com/fcollonval))
@@ -704,7 +1866,7 @@
 - Add argument line and column to codemirror go to line command [#12204](https://github.com/jupyterlab/jupyterlab/pull/12204) ([@fcollonval](https://github.com/fcollonval))
 - Default is no virtual rendering + Relax virtual notebook rendering and ensure no structural change until rendering is completed [#12258](https://github.com/jupyterlab/jupyterlab/pull/12258) ([@echarles](https://github.com/echarles))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Ensure settings editor is attached before activation [#12507](https://github.com/jupyterlab/jupyterlab/pull/12507) ([@fcollonval](https://github.com/fcollonval))
 - Setting form editor has a formState to avoid focus lost [#12470](https://github.com/jupyterlab/jupyterlab/pull/12470) ([@echarles](https://github.com/echarles))
@@ -713,23 +1875,23 @@
 - Move cell toolbar below search document widget [#12467](https://github.com/jupyterlab/jupyterlab/pull/12467) ([@fcollonval](https://github.com/fcollonval))
 - Use css variable for font size. [#12255](https://github.com/jupyterlab/jupyterlab/pull/12255) ([@Carreau](https://github.com/Carreau))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Only show duplicate LabIcon warning in debug mode [#12480](https://github.com/jupyterlab/jupyterlab/pull/12480) ([@ajbozarth](https://github.com/ajbozarth))
 - Update copyright date to 2022 in the about dialog [#12474](https://github.com/jupyterlab/jupyterlab/pull/12474) ([@jtpio](https://github.com/jtpio))
 - Fix update snapshot for 3.4.x [#12462](https://github.com/jupyterlab/jupyterlab/pull/12462) ([@fcollonval](https://github.com/fcollonval))
 - Update benchmark snapshots [#12451](https://github.com/jupyterlab/jupyterlab/pull/12451) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Creates cell-toolbar, cell-toolbar-extension packages and populates toolbar [#12028](https://github.com/jupyterlab/jupyterlab/pull/12028) ([@JasonWeill](https://github.com/JasonWeill))
 - Customize the file browser toolbar via the settings [#12441](https://github.com/jupyterlab/jupyterlab/pull/12441) ([@fcollonval](https://github.com/fcollonval))
 
-#### Deprecated features
+### Deprecated features
 
 - Deprecate FileEditorCodeWrapper [#12381](https://github.com/jupyterlab/jupyterlab/pull/12381) ([@hbcarlos](https://github.com/hbcarlos))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-04-15&to=2022-05-03&type=c))
 
@@ -737,15 +1899,15 @@
 
 ## v3.3
 
-### 3.3.4
+## 3.3.4
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.3...a8a438b3bd84806b8e186e7e037d73167d371c3a))
 
-#### Enhancements made
+### Enhancements made
 
 - Type-only and lazy imports of settings widgets [#12372](https://github.com/jupyterlab/jupyterlab/pull/12372) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Position collapse heading button next to corresponding h tag (jupyter…) [#12412](https://github.com/jupyterlab/jupyterlab/pull/12412) ([@fcollonval](https://github.com/fcollonval))
 - Toolbar items may not act on the proper target [#12368](https://github.com/jupyterlab/jupyterlab/pull/12368) ([@fcollonval](https://github.com/fcollonval))
@@ -756,33 +1918,33 @@
 - Remove circular setting of source [#12338](https://github.com/jupyterlab/jupyterlab/pull/12338) ([@hbcarlos](https://github.com/hbcarlos))
 - Protect against undefined delegated label [#10972](https://github.com/jupyterlab/jupyterlab/pull/10972) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Use pre-commit [#12404](https://github.com/jupyterlab/jupyterlab/pull/12404) ([@fcollonval](https://github.com/fcollonval))
 - Update Playwright snapshots from PR comments [#12403](https://github.com/jupyterlab/jupyterlab/pull/12403) ([@fcollonval](https://github.com/fcollonval))
 - Bump moment from 2.29.1 to 2.29.2 [#12389](https://github.com/jupyterlab/jupyterlab/pull/12389) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix GitHub link [#12410](https://github.com/jupyterlab/jupyterlab/pull/12410) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-04-07&to=2022-04-15&type=c))
 
 [@aiqc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aaiqc+updated%3A2022-04-07..2022-04-15&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-04-07..2022-04-15&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-04-07..2022-04-15&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-04-07..2022-04-15&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-04-07..2022-04-15&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-04-07..2022-04-15&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-04-07..2022-04-15&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-04-07..2022-04-15&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-04-07..2022-04-15&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-04-07..2022-04-15&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-04-07..2022-04-15&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-04-07..2022-04-15&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-04-07..2022-04-15&type=Issues)
 
-### 3.3.3
+## 3.3.3
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.2...d97ff7161640634f69e70b184b9e255a68620f95))
 
-#### Enhancements made
+### Enhancements made
 
 - Add a preferred-dir icon to the file browser crumbs [#12354](https://github.com/jupyterlab/jupyterlab/pull/12354) ([@echarles](https://github.com/echarles))
 - Adds preferKernel option to JupyterLab code [#12260](https://github.com/jupyterlab/jupyterlab/pull/12260) ([@JasonWeill](https://github.com/JasonWeill))
 - Add aria progressbar role and data-status for testing in extensions [#12238](https://github.com/jupyterlab/jupyterlab/pull/12238) ([@krassowski](https://github.com/krassowski))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Fix Markdown cell generates duplicate toc content (#12312) [#12314](https://github.com/jupyterlab/jupyterlab/pull/12314) ([@yangql176](https://github.com/yangql176))
 - Fix settings with `null` default not getting marked as modified [#12240](https://github.com/jupyterlab/jupyterlab/pull/12240) ([@krassowski](https://github.com/krassowski))
@@ -792,75 +1954,75 @@
 - Fix state restoration in the notebook extension [#12218](https://github.com/jupyterlab/jupyterlab/pull/12218) ([@jtpio](https://github.com/jtpio))
 - Fix sdist editable install and add tests [#12224](https://github.com/jupyterlab/jupyterlab/pull/12224) ([@blink1073](https://github.com/blink1073))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - \[3.3.x\] Add git-blame-ignore-revs file [#12289](https://github.com/jupyterlab/jupyterlab/pull/12289) ([@blink1073](https://github.com/blink1073))
 - \[3.3.x\] Run black [#12282](https://github.com/jupyterlab/jupyterlab/pull/12282) ([@blink1073](https://github.com/blink1073))
 - Stop using py.test [#12262](https://github.com/jupyterlab/jupyterlab/pull/12262) ([@fcollonval](https://github.com/fcollonval))
 - Inline `expected_http_error` function from `jupyterlab_server.tests` [#12228](https://github.com/jupyterlab/jupyterlab/pull/12228) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - \[3.3.x\] Run black [#12282](https://github.com/jupyterlab/jupyterlab/pull/12282) ([@blink1073](https://github.com/blink1073))
 - Stop using py.test [#12262](https://github.com/jupyterlab/jupyterlab/pull/12262) ([@fcollonval](https://github.com/fcollonval))
 - Update link to `jupyterlab-some-package` in docs [#12248](https://github.com/jupyterlab/jupyterlab/pull/12248) ([@jtpio](https://github.com/jtpio))
 - Update command in Performance Testing to use the right option [#12215](https://github.com/jupyterlab/jupyterlab/pull/12215) ([@JasonWeill](https://github.com/JasonWeill))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-03-14&to=2022-04-07&type=c))
 
 [@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2022-03-14..2022-04-07&type=Issues) | [@aiqc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aaiqc+updated%3A2022-03-14..2022-04-07&type=Issues) | [@ajbozarth](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aajbozarth+updated%3A2022-03-14..2022-04-07&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-03-14..2022-04-07&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2022-03-14..2022-04-07&type=Issues) | [@damianavila](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adamianavila+updated%3A2022-03-14..2022-04-07&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-03-14..2022-04-07&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-03-14..2022-04-07&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-03-14..2022-04-07&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-03-14..2022-04-07&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-03-14..2022-04-07&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2022-03-14..2022-04-07&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-03-14..2022-04-07&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-03-14..2022-04-07&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-03-14..2022-04-07&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-03-14..2022-04-07&type=Issues) | [@marthacryan](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amarthacryan+updated%3A2022-03-14..2022-04-07&type=Issues) | [@martinRenou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AmartinRenou+updated%3A2022-03-14..2022-04-07&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-03-14..2022-04-07&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-03-14..2022-04-07&type=Issues) | [@mlucool](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amlucool+updated%3A2022-03-14..2022-04-07&type=Issues) | [@rccern](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Arccern+updated%3A2022-03-14..2022-04-07&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-03-14..2022-04-07&type=Issues)
 
-### 3.3.2
+## 3.3.2
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.1...5abe7f69837af8c349d5448f6f3e70db6c48c6e0))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Remove use of ipython_genutils [#12202](https://github.com/jupyterlab/jupyterlab/pull/12202) ([@blink1073](https://github.com/blink1073))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add note about `async`, `await` and `Promises` in the extension tutorial [#12199](https://github.com/jupyterlab/jupyterlab/pull/12199) ([@jtpio](https://github.com/jtpio))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-03-09&to=2022-03-14&type=c))
 
 [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-03-09..2022-03-14&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-03-09..2022-03-14&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-03-09..2022-03-14&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-03-09..2022-03-14&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-03-09..2022-03-14&type=Issues)
 
-### 3.3.1
+## 3.3.1
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.3.0...a51e1110263c28211ed9e8e0a4bba247c828af94))
 
-#### Enhancements made
+### Enhancements made
 
 - Add a note to command line option that collaborative mode is experimental [#12173](https://github.com/jupyterlab/jupyterlab/pull/12173) ([@jasongrout](https://github.com/jasongrout))
 - Adds warning that RTC is experimental [#12171](https://github.com/jupyterlab/jupyterlab/pull/12171) ([@JasonWeill](https://github.com/JasonWeill))
 - Export KernelConnection [#12156](https://github.com/jupyterlab/jupyterlab/pull/12156) ([@tkrabel-db](https://github.com/tkrabel-db))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Backport PR #12122: Remove duplicated shortcuts [#12181](https://github.com/jupyterlab/jupyterlab/pull/12181) ([@fcollonval](https://github.com/fcollonval))
 - Correct the set item logic of `CodeCellModel.onModelDBOutputsChange` [#12147](https://github.com/jupyterlab/jupyterlab/pull/12147) ([@trungleduc](https://github.com/trungleduc))
 - fix: typo in ShortcutItem component [#12161](https://github.com/jupyterlab/jupyterlab/pull/12161) ([@sparanoid](https://github.com/sparanoid))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Adds warning that RTC is experimental [#12171](https://github.com/jupyterlab/jupyterlab/pull/12171) ([@JasonWeill](https://github.com/JasonWeill))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-03-02&to=2022-03-09&type=c))
 
 [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2022-03-02..2022-03-09&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-03-02..2022-03-09&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2022-03-02..2022-03-09&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-03-02..2022-03-09&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-03-02..2022-03-09&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-03-02..2022-03-09&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-03-02..2022-03-09&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-03-02..2022-03-09&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2022-03-02..2022-03-09&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-03-02..2022-03-09&type=Issues) | [@martinRenou](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AmartinRenou+updated%3A2022-03-02..2022-03-09&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-03-02..2022-03-09&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-03-02..2022-03-09&type=Issues)
 
-### 3.3.0
+## 3.3.0
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.5...6e484f89df73e09c29e8608e5eca88fa48cc4267))
 
-#### Enhancements made
+### Enhancements made
 
 - Document search debounce time via setting [#12121](https://github.com/jupyterlab/jupyterlab/pull/12121) ([@fcollonval](https://github.com/fcollonval))
 - Improve toggled button styles in debugger. [#12120](https://github.com/jupyterlab/jupyterlab/pull/12120) ([@fcollonval](https://github.com/fcollonval))
@@ -892,7 +2054,7 @@
 - Fix overlapped shadow for scrolling output cell [#11785](https://github.com/jupyterlab/jupyterlab/pull/11785) ([@thesinepainter](https://github.com/thesinepainter))
 - Toggle side-by-side rendering for current notebook (#11793) [#11794](https://github.com/jupyterlab/jupyterlab/pull/11794) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Build UMD module for @jupyterlab/services [#12141](https://github.com/jupyterlab/jupyterlab/pull/12141) ([@fcollonval](https://github.com/fcollonval))
 - Fix broken link in docs [#12138](https://github.com/jupyterlab/jupyterlab/pull/12138) ([@JasonWeill](https://github.com/JasonWeill))
@@ -918,7 +2080,7 @@
 - Specify an output hash function for Galata [#11830](https://github.com/jupyterlab/jupyterlab/pull/11830) ([@jasongrout](https://github.com/jasongrout))
 - Preserve breakpoint gutter when cells are moved. [#11766](https://github.com/jupyterlab/jupyterlab/pull/11766) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Parse URL parameters in user model [#12065](https://github.com/jupyterlab/jupyterlab/pull/12065) ([@fcollonval](https://github.com/fcollonval))
 - Update vscode-debugprotocol to @vscode/debugprotocol [#11953](https://github.com/jupyterlab/jupyterlab/pull/11953) ([@fcollonval](https://github.com/fcollonval))
@@ -930,7 +2092,7 @@
 - Update reference snapshot for the completer UI test [#11846](https://github.com/jupyterlab/jupyterlab/pull/11846) ([@jtpio](https://github.com/jtpio))
 - Bump version for the 3.3 prerelease [#11810](https://github.com/jupyterlab/jupyterlab/pull/11810) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix broken link in docs [#12138](https://github.com/jupyterlab/jupyterlab/pull/12138) ([@JasonWeill](https://github.com/JasonWeill))
 - Fix anchors and myst configuration [#12063](https://github.com/jupyterlab/jupyterlab/pull/12063) ([@fcollonval](https://github.com/fcollonval))
@@ -943,14 +2105,14 @@
 - Add `3.1.19` Changelog Entry [#11842](https://github.com/jupyterlab/jupyterlab/pull/11842) ([@jtpio](https://github.com/jtpio))
 - Give conda instructions for the pixman pkg-config error. [#11829](https://github.com/jupyterlab/jupyterlab/pull/11829) ([@jasongrout](https://github.com/jasongrout))
 
-#### API and Breaking Changes
+### API and Breaking Changes
 
 - Toc running cell indicator [#11804](https://github.com/jupyterlab/jupyterlab/pull/11804) ([@andrewfulton9](https://github.com/andrewfulton9))
 - Toggle side-by-side rendering for current notebook (#11793) [#11794](https://github.com/jupyterlab/jupyterlab/pull/11794) ([@fcollonval](https://github.com/fcollonval))
 
-#### Other merged PRs
+### Other merged PRs
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-12-10&to=2022-03-02&type=c))
 
@@ -958,60 +2120,60 @@
 
 ## v3.2
 
-### 3.2.9
+## 3.2.9
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.8...dbfc96a51c872288f16b7340398bf99a3df14b1f))
 
-#### Bugs fixed
+### Bugs fixed
 
 - overrides.json definition takes precedence [#11980](https://github.com/jupyterlab/jupyterlab/pull/11980) ([@fcollonval](https://github.com/fcollonval))
 - Fix autocomplete in console [#11949](https://github.com/jupyterlab/jupyterlab/pull/11949) ([@fcollonval](https://github.com/fcollonval))
 - Add percent decoding to username [#11865](https://github.com/jupyterlab/jupyterlab/pull/11865) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Use `maintainer-tools` base setup action [#11595](https://github.com/jupyterlab/jupyterlab/pull/11595) ([@jtpio](https://github.com/jtpio))
 - Drop testing Python 3.6, test on Python 3.10 [#11646](https://github.com/jupyterlab/jupyterlab/pull/11646) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Update screenshots and text for user interface docs [#11981](https://github.com/jupyterlab/jupyterlab/pull/11981) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-01-13&to=2022-02-04&type=c))
 
 [@andrewfulton9](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrewfulton9+updated%3A2022-01-13..2022-02-04&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2022-01-13..2022-02-04&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2022-01-13..2022-02-04&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2022-01-13..2022-02-04&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2022-01-13..2022-02-04&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-01-13..2022-02-04&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-01-13..2022-02-04&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2022-01-13..2022-02-04&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2022-01-13..2022-02-04&type=Issues) | [@JohanMabille](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJohanMabille+updated%3A2022-01-13..2022-02-04&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-01-13..2022-02-04&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2022-01-13..2022-02-04&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-01-13..2022-02-04&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2022-01-13..2022-02-04&type=Issues) | [@marthacryan](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amarthacryan+updated%3A2022-01-13..2022-02-04&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-01-13..2022-02-04&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-01-13..2022-02-04&type=Issues) | [@mlucool](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Amlucool+updated%3A2022-01-13..2022-02-04&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2022-01-13..2022-02-04&type=Issues) | [@yuvipanda](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ayuvipanda+updated%3A2022-01-13..2022-02-04&type=Issues) | [@Zsailer](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AZsailer+updated%3A2022-01-13..2022-02-04&type=Issues)
 
-### 3.2.8
+## 3.2.8
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.7...b2402e5b9e0db0416b5f0e5ac29c9104a69f0c83))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Use the root yarn.lock in staging when making a release. [#11433](https://github.com/jupyterlab/jupyterlab/pull/11433) ([@jasongrout](https://github.com/jasongrout))
 - Update reference snapshot for the completer UI test [#11847](https://github.com/jupyterlab/jupyterlab/pull/11847) ([@jtpio](https://github.com/jtpio))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2022-01-12&to=2022-01-13&type=c))
 
 [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2022-01-12..2022-01-13&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2022-01-12..2022-01-13&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2022-01-12..2022-01-13&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2022-01-12..2022-01-13&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2022-01-12..2022-01-13&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2022-01-12..2022-01-13&type=Issues)
 
-### 3.2.7
+## 3.2.7
 
 No merged PRs
 
-### 3.2.6
+## 3.2.6
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.5...ebce458c5e55126a7cbd5082f669446269007a34))
 
-#### Enhancements made
+### Enhancements made
 
 - Add JSX CodeMirror mode [#11666](https://github.com/jupyterlab/jupyterlab/pull/11666) ([@krassowski](https://github.com/krassowski))
 - Remove leading slash from console path [#11626](https://github.com/jupyterlab/jupyterlab/pull/11626) ([@davidbrochart](https://github.com/davidbrochart))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Restore compact notebook layout on mobile [#11778](https://github.com/jupyterlab/jupyterlab/pull/11778) ([@jtpio](https://github.com/jtpio))
 - Ensure browser attributes are set in plugin adding it [#11758](https://github.com/jupyterlab/jupyterlab/pull/11758) ([@fcollonval](https://github.com/fcollonval))
@@ -1020,38 +2182,38 @@ No merged PRs
 - Ensure the dialog does not close if you drag outside by mistake [#11673](https://github.com/jupyterlab/jupyterlab/pull/11673) ([@echarles](https://github.com/echarles))
 - Add JSX CodeMirror mode [#11666](https://github.com/jupyterlab/jupyterlab/pull/11666) ([@krassowski](https://github.com/krassowski))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Revert "Toggle side-by-side rendering for current notebook" [#11793](https://github.com/jupyterlab/jupyterlab/pull/11793) ([@fcollonval](https://github.com/fcollonval))
 - Fix integrity failure on CI [#11770](https://github.com/jupyterlab/jupyterlab/pull/11770) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Triage documentation [#11661](https://github.com/jupyterlab/jupyterlab/pull/11661) ([@JasonWeill](https://github.com/JasonWeill))
 - Add text on how to run it in a dir other than home [#11761](https://github.com/jupyterlab/jupyterlab/pull/11761) ([@TheOtherRealm](https://github.com/TheOtherRealm))
 - Encourage new contributors to send draft PR over asking for permission [#11746](https://github.com/jupyterlab/jupyterlab/pull/11746) ([@krassowski](https://github.com/krassowski))
 - Fix changelog link [#11668](https://github.com/jupyterlab/jupyterlab/pull/11668) ([@krassowski](https://github.com/krassowski))
 
-#### Other merged PRs
+### Other merged PRs
 
 - Toggle side-by-side rendering for current notebook [#11718](https://github.com/jupyterlab/jupyterlab/pull/11718) ([@echarles](https://github.com/echarles))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-12-10&to=2022-01-07&type=c))
 
 [@andrewfulton9](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrewfulton9+updated%3A2021-12-10..2022-01-07&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2021-12-10..2022-01-07&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2021-12-10..2022-01-07&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-12-10..2022-01-07&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-12-10..2022-01-07&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-12-10..2022-01-07&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-12-10..2022-01-07&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2021-12-10..2022-01-07&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-12-10..2022-01-07&type=Issues) | [@JohanMabille](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJohanMabille+updated%3A2021-12-10..2022-01-07&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-12-10..2022-01-07&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-12-10..2022-01-07&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-12-10..2022-01-07&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-12-10..2022-01-07&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-12-10..2022-01-07&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-12-10..2022-01-07&type=Issues) | [@schmidi314](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aschmidi314+updated%3A2021-12-10..2022-01-07&type=Issues) | [@TheOtherRealm](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ATheOtherRealm+updated%3A2021-12-10..2022-01-07&type=Issues) | [@thesinepainter](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Athesinepainter+updated%3A2021-12-10..2022-01-07&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-12-10..2022-01-07&type=Issues)
 
-### 3.2.5
+## 3.2.5
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.4...97b8069f014c51f584c86165ec0aff8c98be99cb))
 
-#### Enhancements made
+### Enhancements made
 
 - Tweak CSS for scrolled outputs [#11478](https://github.com/jupyterlab/jupyterlab/pull/11478) ([@jtpio](https://github.com/jtpio))
 - Add side-by-side rendering as global setting [#11533](https://github.com/jupyterlab/jupyterlab/pull/11533) ([@jess-x](https://github.com/jess-x))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Fix menu items for toc [#11634](https://github.com/jupyterlab/jupyterlab/pull/11634) ([@fcollonval](https://github.com/fcollonval))
 - Restore accidentally removed ToC context menu [#11617](https://github.com/jupyterlab/jupyterlab/pull/11617) ([@krassowski](https://github.com/krassowski))
@@ -1068,7 +2230,7 @@ No merged PRs
 - Fix Tex highlights affecting Markdown with standalone `$` [#11488](https://github.com/jupyterlab/jupyterlab/pull/11488) ([@krassowski](https://github.com/krassowski))
 - Fix malformed fenced code block Markdown rendering [#11479](https://github.com/jupyterlab/jupyterlab/pull/11479) ([@krassowski](https://github.com/krassowski))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Explicitly build JupyterLab in dev-mode [#11585](https://github.com/jupyterlab/jupyterlab/pull/11585) ([@fcollonval](https://github.com/fcollonval))
 - Fix markdown benchmark snapshot [#11575](https://github.com/jupyterlab/jupyterlab/pull/11575) ([@fcollonval](https://github.com/fcollonval))
@@ -1079,26 +2241,26 @@ No merged PRs
 - Run UI test on 3.2.x push [#11521](https://github.com/jupyterlab/jupyterlab/pull/11521) ([@fcollonval](https://github.com/fcollonval))
 - Enforce labels on PRs [#11496](https://github.com/jupyterlab/jupyterlab/pull/11496) ([@blink1073](https://github.com/blink1073))
 
-#### Documentation
+### Documentation
 
 - Missing parenthesis [#11590](https://github.com/jupyterlab/jupyterlab/pull/11590) ([@davidbrochart](https://github.com/davidbrochart))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-11-17&to=2021-12-10&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-11-17..2021-12-10&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2021-11-17..2021-12-10&type=Issues) | [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2021-11-17..2021-12-10&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-11-17..2021-12-10&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-11-17..2021-12-10&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-11-17..2021-12-10&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-11-17..2021-12-10&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2021-11-17..2021-12-10&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-11-17..2021-12-10&type=Issues) | [@jess-x](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajess-x+updated%3A2021-11-17..2021-12-10&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-11-17..2021-12-10&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-11-17..2021-12-10&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-11-17..2021-12-10&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2021-11-17..2021-12-10&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-11-17..2021-12-10&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-11-17..2021-12-10&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-11-17..2021-12-10&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2021-11-17..2021-12-10&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-11-17..2021-12-10&type=Issues)
 
-### 3.2.4
+## 3.2.4
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.3...3bf36235a2521944b2b0b034e7986630ee83de18))
 
-#### Enhancements made
+### Enhancements made
 
 - Recommend trying prebuilt extension version in the build failure dialog [#11476](https://github.com/jupyterlab/jupyterlab/pull/11476) ([@krassowski](https://github.com/krassowski))
 - Run comparative benchmark [#11441](https://github.com/jupyterlab/jupyterlab/pull/11441) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Add background to the reference iframes to fix contrast [#11477](https://github.com/jupyterlab/jupyterlab/pull/11477) ([@krassowski](https://github.com/krassowski))
 - Fix `undomanager` paste regression - fixes #10928 [#11471](https://github.com/jupyterlab/jupyterlab/pull/11471) ([@dmonad](https://github.com/dmonad))
@@ -1106,46 +2268,46 @@ No merged PRs
 - Fix browser tab name [#10952](https://github.com/jupyterlab/jupyterlab/pull/10952) ([@tejasmorkar](https://github.com/tejasmorkar))
 - Do not update contextual help inspector if there would be no change. [#11447](https://github.com/jupyterlab/jupyterlab/pull/11447) ([@jasongrout](https://github.com/jasongrout))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Reduce flake on non-LaTeX highlighting test [#11470](https://github.com/jupyterlab/jupyterlab/pull/11470) ([@krassowski](https://github.com/krassowski))
 - Makes restorer parameter optional in `toc-extension` [#11460](https://github.com/jupyterlab/jupyterlab/pull/11460) ([@fcollonval](https://github.com/fcollonval))
 - Enforce ascii-only identifiers [#11449](https://github.com/jupyterlab/jupyterlab/pull/11449) ([@jasongrout](https://github.com/jasongrout))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-11-11&to=2021-11-17&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-11-11..2021-11-17&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-11-11..2021-11-17&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-11-11..2021-11-17&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2021-11-11..2021-11-17&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-11-11..2021-11-17&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-11-11..2021-11-17&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-11-11..2021-11-17&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-11-11..2021-11-17&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-11-11..2021-11-17&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-11-11..2021-11-17&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-11-11..2021-11-17&type=Issues) | [@williamstein](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awilliamstein+updated%3A2021-11-11..2021-11-17&type=Issues)
 
-### 3.2.3
+## 3.2.3
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.2...49b2dfa5b74d5139dcbc55940ee5ed93b48e9db2))
 
-#### Enhancements made
+### Enhancements made
 
 - \[3.2.x\] Expose `window.jupyterapp` [#11417](https://github.com/jupyterlab/jupyterlab/pull/11417) ([@jtpio](https://github.com/jtpio))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Handle relative paths to `themePath` and `schemaDir` [#11427](https://github.com/jupyterlab/jupyterlab/pull/11427) ([@jtpio](https://github.com/jtpio))
 - Backport PR #11398 on branch 3.2.x (fix #11377 & bump Yjs dependencies & fix modeldb overwriting yjs content) [#11408](https://github.com/jupyterlab/jupyterlab/pull/11408) ([@dmonad](https://github.com/dmonad))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Backport PR #11420 on branch 3.2.x (Makes ILabShell optional in toc extension) [#11421](https://github.com/jupyterlab/jupyterlab/pull/11421) ([@JasonWeill](https://github.com/JasonWeill))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-11-04&to=2021-11-11&type=c))
 
 [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2021-11-04..2021-11-11&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-11-04..2021-11-11&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-11-04..2021-11-11&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-11-04..2021-11-11&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-11-04..2021-11-11&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-11-04..2021-11-11&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2021-11-04..2021-11-11&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-11-04..2021-11-11&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-11-04..2021-11-11&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-11-04..2021-11-11&type=Issues)
 
-### 3.2.2
+## 3.2.2
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.1...0fcd2f5bfbe857a416dfad0c177f3f1299fef96e))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Make `orig_nbformat` optional #11005 [#11370](https://github.com/jupyterlab/jupyterlab/pull/11370) ([@nanoant](https://github.com/nanoant))
 - Updated dialog with text to a reasonable width [#11331](https://github.com/jupyterlab/jupyterlab/pull/11331) ([@3coins](https://github.com/3coins))
@@ -1153,13 +2315,13 @@ No merged PRs
 - Only trigger dirty status update on value changes [#11346](https://github.com/jupyterlab/jupyterlab/pull/11346) ([@krassowski](https://github.com/krassowski))
 - Run nested code cells directly from markdown headings [#11375](https://github.com/jupyterlab/jupyterlab/pull/11375) ([@jess-x](https://github.com/jess-x))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix `release_test` [#11390](https://github.com/jupyterlab/jupyterlab/pull/11390) ([@fcollonval](https://github.com/fcollonval))
 - Removed `cat package.json` [#11372](https://github.com/jupyterlab/jupyterlab/pull/11372) ([@ceesu](https://github.com/ceesu))
 - Relax `@playright/test` dependency in Galata [#11371](https://github.com/jupyterlab/jupyterlab/pull/11371) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix links [#11378](https://github.com/jupyterlab/jupyterlab/pull/11378) ([@krassowski](https://github.com/krassowski))
 - Adds command to docs to install canvas dependencies [#11365](https://github.com/jupyterlab/jupyterlab/pull/11365) ([@JasonWeill](https://github.com/JasonWeill))
@@ -1167,17 +2329,17 @@ No merged PRs
 - Fix outdated `clearSignalData` reference (now `Signal.clearData`) [#11339](https://github.com/jupyterlab/jupyterlab/pull/11339) ([@krassowski](https://github.com/krassowski))
 - Improve documentation on galata setup [#11391](https://github.com/jupyterlab/jupyterlab/pull/11391) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-10-20&to=2021-11-04&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-10-20..2021-11-04&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2021-10-20..2021-11-04&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-10-20..2021-11-04&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-10-20..2021-11-04&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-10-20..2021-11-04&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-10-20..2021-11-04&type=Issues) | [@jess-x](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajess-x+updated%3A2021-10-20..2021-11-04&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-10-20..2021-11-04&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-10-20..2021-11-04&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-10-20..2021-11-04&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-10-20..2021-11-04&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-10-20..2021-11-04&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2021-10-20..2021-11-04&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-10-20..2021-11-04&type=Issues) | [@williamstein](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awilliamstein+updated%3A2021-10-20..2021-11-04&type=Issues) | [@Zsailer](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AZsailer+updated%3A2021-10-20..2021-11-04&type=Issues)
 
-### 3.2.1
+## 3.2.1
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.2.0...2b7e4ea681ad11b2df16124b588448aac9562aef))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Updated button styles to accessible colors [#11321](https://github.com/jupyterlab/jupyterlab/pull/11321) ([@3coins](https://github.com/3coins))
 - Fix for debugger not working for scripts [#11311](https://github.com/jupyterlab/jupyterlab/pull/11311) ([@3coins](https://github.com/3coins))
@@ -1185,29 +2347,29 @@ No merged PRs
 - Emit `indexChanged` on model state updates [#11298](https://github.com/jupyterlab/jupyterlab/pull/11298) ([@krassowski](https://github.com/krassowski))
 - Fix ANSI vs URL conflict, prefix `www.` with `https://` [#11272](https://github.com/jupyterlab/jupyterlab/pull/11272) ([@krassowski](https://github.com/krassowski))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Pass version spec as an input [#11322](https://github.com/jupyterlab/jupyterlab/pull/11322) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Updated button styles to accessible colors [#11321](https://github.com/jupyterlab/jupyterlab/pull/11321) ([@3coins](https://github.com/3coins))
 - Add note on the server parameter for hidden files. [#11293](https://github.com/jupyterlab/jupyterlab/pull/11293) ([@fcollonval](https://github.com/fcollonval))
 - Amend changelog - follow up issue 11304 [#11309](https://github.com/jupyterlab/jupyterlab/pull/11309) ([@achimgaedke](https://github.com/achimgaedke))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-10-14&to=2021-10-20&type=c))
 
 [@3coins](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3A3coins+updated%3A2021-10-14..2021-10-20&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-10-14..2021-10-20&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-10-14..2021-10-20&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-10-14..2021-10-20&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-10-14..2021-10-20&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-10-14..2021-10-20&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-10-14..2021-10-20&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-10-14..2021-10-20&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-10-14..2021-10-20&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-10-14..2021-10-20&type=Issues)
 
-### 3.2.0
+## 3.2.0
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/@jupyterlab/example-services-outputarea@3.1.9...2444ed0588adba1999a5575304d452a3b512c913))
 
-#### Enhancements made
+### Enhancements made
 
-- Add a menu entry to show/hide hidden files in the filebrowser [#11206](https://github.com/jupyterlab/jupyterlab/pull/11206) ([@loichuder](https://github.com/loichuder)) - activation instructions: [see documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/files.html#displaying-hidden-files)
+- Add a menu entry to show/hide hidden files in the filebrowser [#11206](https://github.com/jupyterlab/jupyterlab/pull/11206) ([@loichuder](https://github.com/loichuder)) - activation instructions: [see documentation](https://jupyterlab.readthedocs.io/en/stable/user/files.html#displaying-hidden-files)
 - Restore Copy shareable link use of `shareUrl` [#11188](https://github.com/jupyterlab/jupyterlab/pull/11188) ([@fcollonval](https://github.com/fcollonval))
 - Add Galata in JupyterLab [#11179](https://github.com/jupyterlab/jupyterlab/pull/11179) ([@fcollonval](https://github.com/fcollonval))
 - Responsive Toolbar [#11178](https://github.com/jupyterlab/jupyterlab/pull/11178) ([@3coins](https://github.com/3coins))
@@ -1220,7 +2382,7 @@ No merged PRs
 - Enable disabling document-wide history tracking [#10949](https://github.com/jupyterlab/jupyterlab/pull/10949) ([@echarles](https://github.com/echarles))
 - Removed debug switch [#11185](https://github.com/jupyterlab/jupyterlab/pull/11185) ([@3coins](https://github.com/3coins))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Normalize cell source `\r` line endings [#11271](https://github.com/jupyterlab/jupyterlab/pull/11271) ([@jasongrout](https://github.com/jasongrout))
 - Fix Webpack crypto handling [#11249](https://github.com/jupyterlab/jupyterlab/pull/11249) ([@blink1073](https://github.com/blink1073))
@@ -1235,7 +2397,7 @@ No merged PRs
 - Fix auto close brackets for console [#11137](https://github.com/jupyterlab/jupyterlab/pull/11137) ([@ohrely](https://github.com/ohrely))
 - Add a guard to avoid kernel deadlock on multiple input request [#10792](https://github.com/jupyterlab/jupyterlab/pull/10792) ([@echarles](https://github.com/echarles))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Extension upgrade script: Avoid throwing exceptions for certain package.json files [#11278](https://github.com/jupyterlab/jupyterlab/pull/11278) ([@ammgws](https://github.com/ammgws))
 - Run Linter [#11238](https://github.com/jupyterlab/jupyterlab/pull/11238) ([@blink1073](https://github.com/blink1073))
@@ -1252,14 +2414,14 @@ No merged PRs
 - Use disableDocumentWideUndoRedo instead of enableDocumentWideUndoRedo [#11215](https://github.com/jupyterlab/jupyterlab/pull/11215) ([@echarles](https://github.com/echarles))
 - Fix kernelspec logo handling (#11175) [#11183](https://github.com/jupyterlab/jupyterlab/pull/11183) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
-- Fix typo in docs: `page_config.json` \[#11152\]https://github.com/jupyterlab/jupyterlab/pull/11152) ([@achimgaedke](https://github.com/achimgaedke))
+- Fix typo in docs: `page_config.json` [#11152](https://github.com/jupyterlab/jupyterlab/pull/11152) ([@achimgaedke](https://github.com/achimgaedke))
 - Add a menu entry to show/hide hidden files in the filebrowser [#11206](https://github.com/jupyterlab/jupyterlab/pull/11206) ([@loichuder](https://github.com/loichuder))
 - Fix the "Edit on GitHub" link [#11149](https://github.com/jupyterlab/jupyterlab/pull/11149) ([@krassowski](https://github.com/krassowski))
 - Clarify sidebar switching settings [#11270](https://github.com/jupyterlab/jupyterlab/pull/11270) ([@joelostblom](https://github.com/joelostblom))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-01&to=2021-10-14&type=c))
 
@@ -1267,57 +2429,57 @@ No merged PRs
 
 ## v3.1
 
-### 3.1.19
+## 3.1.19
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.18...90ed111b152665357b069cf4a42590fe07d630e8))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Added handling of '\\r' ended files [#11310](https://github.com/jupyterlab/jupyterlab/pull/11310) ([@lucabarcelos](https://github.com/lucabarcelos))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Pass version spec as an input [#11322](https://github.com/jupyterlab/jupyterlab/pull/11322) ([@jtpio](https://github.com/jtpio))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-10-07&to=2022-01-12&type=c))
 
 [@agoose77](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aagoose77+updated%3A2021-10-07..2022-01-12&type=Issues) | [@andrewfulton9](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aandrewfulton9+updated%3A2021-10-07..2022-01-12&type=Issues) | [@baggiponte](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abaggiponte+updated%3A2021-10-07..2022-01-12&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-10-07..2022-01-12&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2021-10-07..2022-01-12&type=Issues) | [@Carreau](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ACarreau+updated%3A2021-10-07..2022-01-12&type=Issues) | [@davidbrochart](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Adavidbrochart+updated%3A2021-10-07..2022-01-12&type=Issues) | [@dmonad](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Admonad+updated%3A2021-10-07..2022-01-12&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-10-07..2022-01-12&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-10-07..2022-01-12&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-10-07..2022-01-12&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-10-07..2022-01-12&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2021-10-07..2022-01-12&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2021-10-07..2022-01-12&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-10-07..2022-01-12&type=Issues) | [@jess-x](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajess-x+updated%3A2021-10-07..2022-01-12&type=Issues) | [@JohanMabille](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJohanMabille+updated%3A2021-10-07..2022-01-12&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-10-07..2022-01-12&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-10-07..2022-01-12&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-10-07..2022-01-12&type=Issues) | [@JasonWeill](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AJasonWeill+updated%3A2021-10-07..2022-01-12&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-10-07..2022-01-12&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-10-07..2022-01-12&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-10-07..2022-01-12&type=Issues) | [@schmidi314](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aschmidi314+updated%3A2021-10-07..2022-01-12&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2021-10-07..2022-01-12&type=Issues) | [@telamonian](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atelamonian+updated%3A2021-10-07..2022-01-12&type=Issues) | [@thesinepainter](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Athesinepainter+updated%3A2021-10-07..2022-01-12&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2021-10-07..2022-01-12&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-10-07..2022-01-12&type=Issues) | [@williamstein](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awilliamstein+updated%3A2021-10-07..2022-01-12&type=Issues) | [@yuvipanda](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ayuvipanda+updated%3A2021-10-07..2022-01-12&type=Issues) | [@Zsailer](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AZsailer+updated%3A2021-10-07..2022-01-12&type=Issues)
 
-### 3.1.18
+## 3.1.18
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.17...c6dc40f16ea6fd1b5a58167dec6ed066de3304a9))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Backport PR #11249 on branch 3.1.x (Fix Webpack crypto handling) [#11252](https://github.com/jupyterlab/jupyterlab/pull/11252) ([@blink1073](https://github.com/blink1073))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-10-05&to=2021-10-07&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-10-05..2021-10-07&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-10-05..2021-10-07&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-10-05..2021-10-07&type=Issues)
 
-### 3.1.17
+## 3.1.17
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.16...a899a8b9da2216d91a2426c4956bc2e711a93ecd))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Use standard hash type in webpack build [#11234](https://github.com/jupyterlab/jupyterlab/pull/11234) ([@blink1073](https://github.com/blink1073))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-10-05&to=2021-10-05&type=c))
 
 [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-10-05..2021-10-05&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-10-05..2021-10-05&type=Issues)
 
-### 3.1.16
+## 3.1.16
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.14...fc00631f2088d90655b0e09a96f14da86a02f911))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Do not continuously `cd('/')` when already in / [#11219](https://github.com/jupyterlab/jupyterlab/pull/11219) ([@minrk](https://github.com/minrk))
 - Properly reset layout when toggling simple mode. [#11203](https://github.com/jupyterlab/jupyterlab/pull/11203) ([@jasongrout](https://github.com/jasongrout))
@@ -1325,115 +2487,115 @@ No merged PRs
 - Restore workspace and open tree path [#11177](https://github.com/jupyterlab/jupyterlab/pull/11177) ([@blink1073](https://github.com/blink1073))
 - Share notebook's metadata [#11064](https://github.com/jupyterlab/jupyterlab/pull/11064) ([@hbcarlos](https://github.com/hbcarlos))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Check `i18n` will pass on zeroed patch pre-release version [#11214](https://github.com/jupyterlab/jupyterlab/pull/11214) ([@fcollonval](https://github.com/fcollonval))
 - Fix Release Check [#11218](https://github.com/jupyterlab/jupyterlab/pull/11218) ([@fcollonval](https://github.com/fcollonval))
 - Handle case when JupyterHub returns 424 for not running server [#11205](https://github.com/jupyterlab/jupyterlab/pull/11205) ([@yuvipanda](https://github.com/yuvipanda))
 - Use only context and id to check `i18n` [#11190](https://github.com/jupyterlab/jupyterlab/pull/11190) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-27&to=2021-10-05&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-09-27..2021-10-05&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-09-27..2021-10-05&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-09-27..2021-10-05&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-09-27..2021-10-05&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-09-27..2021-10-05&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-09-27..2021-10-05&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2021-09-27..2021-10-05&type=Issues) | [@isabela-pf](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aisabela-pf+updated%3A2021-09-27..2021-10-05&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-09-27..2021-10-05&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-09-27..2021-10-05&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-09-27..2021-10-05&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-09-27..2021-10-05&type=Issues) | [@loichuder](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aloichuder+updated%3A2021-09-27..2021-10-05&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-09-27..2021-10-05&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-09-27..2021-10-05&type=Issues) | [@SylvainCorlay](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASylvainCorlay+updated%3A2021-09-27..2021-10-05&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-09-27..2021-10-05&type=Issues)
 
-### 3.1.15
+## 3.1.15
 
 (Skipped due to errors in release process)
 
-### 3.1.14
+## 3.1.14
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.13...fb6df989b70ce096c9769fc728bb158f311b48a9))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Normalize notebook cell line endings to \\n [#11141](https://github.com/jupyterlab/jupyterlab/pull/11141) ([@jasongrout](https://github.com/jasongrout))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix the "Edit on GitHub" link [#11149](https://github.com/jupyterlab/jupyterlab/pull/11149) ([@krassowski](https://github.com/krassowski))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix the "Edit on GitHub" link [#11149](https://github.com/jupyterlab/jupyterlab/pull/11149) ([@krassowski](https://github.com/krassowski))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-22&to=2021-09-27&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-09-22..2021-09-27&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-09-22..2021-09-27&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-09-22..2021-09-27&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-09-22..2021-09-27&type=Issues) | [@jess-x](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajess-x+updated%3A2021-09-22..2021-09-27&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-09-22..2021-09-27&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-09-22..2021-09-27&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-09-22..2021-09-27&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-09-22..2021-09-27&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-09-22..2021-09-27&type=Issues)
 
-### 3.1.13
+## 3.1.13
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.12...a8d8f3dbceb9c852e6196b0ebd368759232e2626))
 
-#### Enhancements made
+### Enhancements made
 
 - Fetch translations via the `ServerConnection.ISettings` [#11091](https://github.com/jupyterlab/jupyterlab/pull/11091) ([@jtpio](https://github.com/jtpio))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Update the lock after every request [#11092](https://github.com/jupyterlab/jupyterlab/pull/11092) ([@hbcarlos](https://github.com/hbcarlos))
 - use posix explicitly for PathExt [#11099](https://github.com/jupyterlab/jupyterlab/pull/11099) ([@mbektas](https://github.com/mbektas))
 - Backport PR #10868 on branch 3.1.x (Fix user preferences not being considered for Text Editor) [#11087](https://github.com/jupyterlab/jupyterlab/pull/11087) ([@Mithil467](https://github.com/Mithil467))
 - Indent comments (#6957) [#11063](https://github.com/jupyterlab/jupyterlab/pull/11063) ([@josephrocca](https://github.com/josephrocca))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Check changes on translatable strings [#11036](https://github.com/jupyterlab/jupyterlab/pull/11036) ([@fcollonval](https://github.com/fcollonval))
 - Skip flaky debugger test [#11083](https://github.com/jupyterlab/jupyterlab/pull/11083) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add a note on the Jupyter Releaser in the extension tutorial [#11085](https://github.com/jupyterlab/jupyterlab/pull/11085) ([@jtpio](https://github.com/jtpio))
 
-#### Other merged PRs
+### Other merged PRs
 
 - Remove item from changelog that slips through [#11110](https://github.com/jupyterlab/jupyterlab/pull/11110) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-14&to=2021-09-22&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-09-14..2021-09-22&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-09-14..2021-09-22&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-09-14..2021-09-22&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-09-14..2021-09-22&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-09-14..2021-09-22&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-09-14..2021-09-22&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-09-14..2021-09-22&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-09-14..2021-09-22&type=Issues) | [@Mithil467](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AMithil467+updated%3A2021-09-14..2021-09-22&type=Issues) | [@trungleduc](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Atrungleduc+updated%3A2021-09-14..2021-09-22&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-09-14..2021-09-22&type=Issues)
 
-### 3.1.12
+## 3.1.12
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.11...1af92c9bbae0eab61938bbbba0ae8cc5e9b59fdd))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Retain the rtc lock until the user releases it [#11026](https://github.com/jupyterlab/jupyterlab/pull/11026) ([@hbcarlos](https://github.com/hbcarlos))
 - Backport PR #11031 on branch 3.1.x (Use posix paths explicitly) [#11045](https://github.com/jupyterlab/jupyterlab/pull/11045) ([@Mithil467](https://github.com/Mithil467))
 - Adds the variable reference to the key of the component [#11029](https://github.com/jupyterlab/jupyterlab/pull/11029) ([@hbcarlos](https://github.com/hbcarlos))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Clean up bumpversion [#11056](https://github.com/jupyterlab/jupyterlab/pull/11056) ([@blink1073](https://github.com/blink1073))
 - Make debugger jest test more robust [#11032](https://github.com/jupyterlab/jupyterlab/pull/11032) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Added Table of contents (toc.rst) to user guide documentation [#10699](https://github.com/jupyterlab/jupyterlab/pull/10699) ([@AnudeepGunukula](https://github.com/AnudeepGunukula))
 
-#### Other merged PRs
+### Other merged PRs
 
 - Remove status bar item flickering [#11065](https://github.com/jupyterlab/jupyterlab/pull/11065) ([@fcollonval](https://github.com/fcollonval))
 - Backport PR #10954 on branch 3.1.x (Improve release notes for 3.1) [#11053](https://github.com/jupyterlab/jupyterlab/pull/11053) ([@Mithil467](https://github.com/Mithil467))
 - use path.posix explicitly for URLs [#11048](https://github.com/jupyterlab/jupyterlab/pull/11048) ([@mbektas](https://github.com/mbektas))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-08&to=2021-09-14&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-09-08..2021-09-14&type=Issues) | [@github-actions](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agithub-actions+updated%3A2021-09-08..2021-09-14&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-09-08..2021-09-14&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-09-08..2021-09-14&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-09-08..2021-09-14&type=Issues) | [@jupyterlab-probot](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-probot+updated%3A2021-09-08..2021-09-14&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-09-08..2021-09-14&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-09-08..2021-09-14&type=Issues) | [@Mithil467](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AMithil467+updated%3A2021-09-08..2021-09-14&type=Issues)
 
-### 3.1.11
+## 3.1.11
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.10...f04391135c11c6c5e3e8c4706ec26e675f0db4d6))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Revert pending input PR #10792 merged in 3.1.x branch [#11020](https://github.com/jupyterlab/jupyterlab/pull/11020) ([@echarles](https://github.com/echarles))
 - fix #10997 - increase max_message_size of websocket messages [#11003](https://github.com/jupyterlab/jupyterlab/pull/11003) ([@dmonad](https://github.com/dmonad))
@@ -1443,74 +2605,74 @@ No merged PRs
 - Backport PR #10943 on branch 3.1.x (Simplify IRankedMenu interface) [#10991](https://github.com/jupyterlab/jupyterlab/pull/10991) ([@fcollonval](https://github.com/fcollonval))
 - Add a guard to avoid kernel deadlock on multiple input request [#10792](https://github.com/jupyterlab/jupyterlab/pull/10792) ([@echarles](https://github.com/echarles))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Clean up handling of npm dist tag [#10999](https://github.com/jupyterlab/jupyterlab/pull/10999) ([@fcollonval](https://github.com/fcollonval))
 - Fix version regex [#10994](https://github.com/jupyterlab/jupyterlab/pull/10994) ([@fcollonval](https://github.com/fcollonval))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Update documentation for internationalization [#11024](https://github.com/jupyterlab/jupyterlab/pull/11024) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-09-01&to=2021-09-08&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-09-01..2021-09-08&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-09-01..2021-09-08&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-09-01..2021-09-08&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-09-01..2021-09-08&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-09-01..2021-09-08&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-09-01..2021-09-08&type=Issues)
 
-### 3.1.10
+## 3.1.10
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.9...646b708cdb76f6d0e4e622b0546cc4dc7d2854c7))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Add "menu" context for translation of menu labels [#10932](https://github.com/jupyterlab/jupyterlab/pull/10932) ([@krassowski](https://github.com/krassowski))
 - Fix lack of translation of part of "Saving completed" and friends [#10958](https://github.com/jupyterlab/jupyterlab/pull/10958) ([@krassowski](https://github.com/krassowski))
 - Add undoManager to inserted cells [#10899](https://github.com/jupyterlab/jupyterlab/pull/10899) ([@hbcarlos](https://github.com/hbcarlos))
 - Render placeholder at correct index [#10898](https://github.com/jupyterlab/jupyterlab/pull/10898) ([@echarles](https://github.com/echarles))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Backport PR #10983 on branch 3.1.x (Update to lerna 4) [#10985](https://github.com/jupyterlab/jupyterlab/pull/10985) ([@blink1073](https://github.com/blink1073))
 - Clarify usage of mock in debugger test [#10979](https://github.com/jupyterlab/jupyterlab/pull/10979) ([@fcollonval](https://github.com/fcollonval))
 - Restore test for kernel that does not support debugger [#10973](https://github.com/jupyterlab/jupyterlab/pull/10973) ([@fcollonval](https://github.com/fcollonval))
 - Backport PR #10937: More Publish Integrity [#10938](https://github.com/jupyterlab/jupyterlab/pull/10938) ([@blink1073](https://github.com/blink1073))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Backport #10893 on branch 3.1.x (Add internationalization documentation) [#10974](https://github.com/jupyterlab/jupyterlab/pull/10974) ([@fcollonval](https://github.com/fcollonval))
 - Fix formatting of a link in the changelog [#10945](https://github.com/jupyterlab/jupyterlab/pull/10945) ([@jtpio](https://github.com/jtpio))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-25&to=2021-09-01&type=c))
 
 [@agoose77](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aagoose77+updated%3A2021-08-25..2021-09-01&type=Issues) | [@baggiponte](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abaggiponte+updated%3A2021-08-25..2021-09-01&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-08-25..2021-09-01&type=Issues) | [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-08-25..2021-09-01&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-08-25..2021-09-01&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-08-25..2021-09-01&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-08-25..2021-09-01&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-08-25..2021-09-01&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-08-25..2021-09-01&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-25..2021-09-01&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-08-25..2021-09-01&type=Issues) | [@mbektas](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ambektas+updated%3A2021-08-25..2021-09-01&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-08-25..2021-09-01&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-25..2021-09-01&type=Issues) | [@SarunasAzna](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3ASarunasAzna+updated%3A2021-08-25..2021-09-01&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-08-25..2021-09-01&type=Issues)
 
-### 3.1.9
+## 3.1.9
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.8...8f8cfc548c7c91e9dcf0dc51fd6eafc98f3fcfef))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Fix Package Publish [#10916](https://github.com/jupyterlab/jupyterlab/pull/10916) ([@afshin](https://github.com/afshin))
 - Remove terminal theme menu if terminal feature is disabled [#10909](https://github.com/jupyterlab/jupyterlab/pull/10909) ([@Mithil467](https://github.com/Mithil467))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Correct the documentation for packaging [#10910](https://github.com/jupyterlab/jupyterlab/pull/10910) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-24&to=2021-08-25&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-08-24..2021-08-25&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-24..2021-08-25&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-08-24..2021-08-25&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-24..2021-08-25&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-08-24..2021-08-25&type=Issues)
 
-### 3.1.8
+## 3.1.8
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.7...ecb8be24857466a69e4643a5a708b29a062d8465))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Workaround invasive use of tex mode inside of code elements and blocks [#10867](https://github.com/jupyterlab/jupyterlab/pull/10867) ([@krassowski](https://github.com/krassowski))
 - Keep cursor at the previous position after cell split [#10884](https://github.com/jupyterlab/jupyterlab/pull/10884) ([@krassowski](https://github.com/krassowski))
@@ -1522,147 +2684,147 @@ No merged PRs
 - Get metadata from shared model when serializing the notebook to JSON [#10804](https://github.com/jupyterlab/jupyterlab/pull/10804) ([@hbcarlos](https://github.com/hbcarlos))
 - Shutdown sessions/terminals on shutdown [#10843](https://github.com/jupyterlab/jupyterlab/pull/10843) ([@martinRenou](https://github.com/martinRenou))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Backport PR #10891 on branch 3.1.x (Publish Cleanup) [#10897](https://github.com/jupyterlab/jupyterlab/pull/10897) ([@fcollonval](https://github.com/fcollonval))
 - Fix Publish Check [#10846](https://github.com/jupyterlab/jupyterlab/pull/10846) ([@afshin](https://github.com/afshin))
 - Translate labels of menus and submenus [#10739](https://github.com/jupyterlab/jupyterlab/pull/10739) ([@krassowski](https://github.com/krassowski))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-16&to=2021-08-24&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-08-16..2021-08-24&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-08-16..2021-08-24&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-16..2021-08-24&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-08-16..2021-08-24&type=Issues) | [@meeseeksdev](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksdev+updated%3A2021-08-16..2021-08-24&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-16..2021-08-24&type=Issues)
 
-### 3.1.7
+## 3.1.7
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.6...e0a6d74212394a40ba00a12d8043f1b49326f73d))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Fix link to the security documentation [#10836](https://github.com/jupyterlab/jupyterlab/pull/10836) ([@krassowski](https://github.com/krassowski))
 - The dirty indicator does not get cleared up after reverting changes [#10812](https://github.com/jupyterlab/jupyterlab/pull/10812) ([@fcollonval](https://github.com/fcollonval))
 - Remove session error dialog redundant error message to avoid repeated display [#10810](https://github.com/jupyterlab/jupyterlab/pull/10810) ([@franckchen](https://github.com/franckchen))
 - Use nullish operator instead of OR [#10811](https://github.com/jupyterlab/jupyterlab/pull/10811) ([@fcollonval](https://github.com/fcollonval))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Remove outdated `npm-cli-login` utility from buildutils [#10828](https://github.com/jupyterlab/jupyterlab/pull/10828) ([@krassowski](https://github.com/krassowski))
 - More Releaser Fixes [#10817](https://github.com/jupyterlab/jupyterlab/pull/10817) ([@afshin](https://github.com/afshin))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Fix documentation snippets [#10813](https://github.com/jupyterlab/jupyterlab/pull/10813) ([@fcollonval](https://github.com/fcollonval))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-12&to=2021-08-16&type=c))
 
 [@3coins](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3A3coins+updated%3A2021-08-12..2021-08-16&type=Issues) | [@afshin](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aafshin+updated%3A2021-08-12..2021-08-16&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-08-12..2021-08-16&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-08-12..2021-08-16&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-08-12..2021-08-16&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-08-12..2021-08-16&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-12..2021-08-16&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-08-12..2021-08-16&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-12..2021-08-16&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-08-12..2021-08-16&type=Issues)
 
-### 3.1.6
+## 3.1.6
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.5...4cec12eba17eaf313241b595e98b40cb0a851e65))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Backport PR #10738 on branch 3.1.x [#10806](https://github.com/jupyterlab/jupyterlab/pull/10806) ([@krassowski](https://github.com/krassowski))
 - Share nbformat and nbformatMinor [#10795](https://github.com/jupyterlab/jupyterlab/pull/10795) ([@hbcarlos](https://github.com/hbcarlos))
 - Support collapsible headers with virtual notebook rendering [#10793](https://github.com/jupyterlab/jupyterlab/pull/10793) ([@echarles](https://github.com/echarles))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Clean up Link Caching Again [#10794](https://github.com/jupyterlab/jupyterlab/pull/10794) ([@afshin](https://github.com/afshin))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-09&to=2021-08-12&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-08-09..2021-08-12&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-09..2021-08-12&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-08-09..2021-08-12&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-09..2021-08-12&type=Issues)
 
-### 3.1.5
+## 3.1.5
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.4...6d14f7f8d3a7400a5fddbbdfaf79d0b8bdd5325f))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Revert input guard [#10779](https://github.com/jupyterlab/jupyterlab/pull/10779) ([@echarles](https://github.com/echarles))
 - Markdown url resolver no longer throws for malformed URLs in `isLocal` check [#10773](https://github.com/jupyterlab/jupyterlab/pull/10773) ([@loichuder](https://github.com/loichuder))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-08-05&to=2021-08-09&type=c))
 
 [@echarles](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aecharles+updated%3A2021-08-05..2021-08-09&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-08-05..2021-08-09&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-08-05..2021-08-09&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-08-05..2021-08-09&type=Issues)
 
-### 3.1.2
+## 3.1.2
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.1...be8032d1a932e09f553d0343659e89a6a25a516f))
 
-#### Enhancements made
+### Enhancements made
 
 - Normalize translation domain [#10728](https://github.com/jupyterlab/jupyterlab/pull/10728) ([@fcollonval](https://github.com/fcollonval))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Prevent undo/redo in outputs [#10756](https://github.com/jupyterlab/jupyterlab/pull/10756) ([@hbcarlos](https://github.com/hbcarlos))
 - Revert change in saveState Signal [#10741](https://github.com/jupyterlab/jupyterlab/pull/10741) ([@jess-x](https://github.com/jess-x))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Another Fix to Verdaccio Publishing [#10747](https://github.com/jupyterlab/jupyterlab/pull/10747) ([@afshin](https://github.com/afshin))
 - More Cleanup of Automated Release Process [#10742](https://github.com/jupyterlab/jupyterlab/pull/10742) ([@blink1073](https://github.com/blink1073))
 - Fix Verdaccio Publish [#10743](https://github.com/jupyterlab/jupyterlab/pull/10743) ([@afshin](https://github.com/afshin))
 - Yet another fix for Verdaccio publish [#10759](https://github.com/jupyterlab/jupyterlab/pull/10759) ([@afshin](https://github.com/afshin))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-07-29&to=2021-08-04&type=c))
 
 [@AnudeepGunukula](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3AAnudeepGunukula+updated%3A2021-07-29..2021-08-04&type=Issues) | [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-07-29..2021-08-04&type=Issues) | [@ellisonbg](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Aellisonbg+updated%3A2021-07-29..2021-08-04&type=Issues) | [@fcollonval](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Afcollonval+updated%3A2021-07-29..2021-08-04&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-07-29..2021-08-04&type=Issues) | [@jasongrout](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajasongrout+updated%3A2021-07-29..2021-08-04&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-07-29..2021-08-04&type=Issues) | [@krassowski](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Akrassowski+updated%3A2021-07-29..2021-08-04&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-07-29..2021-08-04&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-07-29..2021-08-04&type=Issues)
 
-### 3.1.1
+## 3.1.1
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.1.0...6b09ac27dcde158a2dee9df1499af384fce7086a))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Use appName in page title when restoring workspaces (vs 3.1.x) [#10724](https://github.com/jupyterlab/jupyterlab/pull/10724) ([@bollwyvl](https://github.com/bollwyvl))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Add branch integrity handling [#10708](https://github.com/jupyterlab/jupyterlab/pull/10708) ([@afshin](https://github.com/afshin))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add branch integrity handling [#10708](https://github.com/jupyterlab/jupyterlab/pull/10708) ([@afshin](https://github.com/afshin))
 - Minor improvement to contributing documentation [#10713](https://github.com/jupyterlab/jupyterlab/pull/10713) ([@KrishnaKumarHariprasannan](https://github.com/KrishnaKumarHariprasannan))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-07-27&to=2021-07-29&type=c))
 
 [@blink1073](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ablink1073+updated%3A2021-07-27..2021-07-29&type=Issues) | [@bollwyvl](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Abollwyvl+updated%3A2021-07-27..2021-07-29&type=Issues) | [@goanpeca](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Agoanpeca+updated%3A2021-07-27..2021-07-29&type=Issues) | [@hbcarlos](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ahbcarlos+updated%3A2021-07-27..2021-07-29&type=Issues) | [@jtpio](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajtpio+updated%3A2021-07-27..2021-07-29&type=Issues) | [@jupyterlab-dev-mode](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ajupyterlab-dev-mode+updated%3A2021-07-27..2021-07-29&type=Issues) | [@meeseeksmachine](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Ameeseeksmachine+updated%3A2021-07-27..2021-07-29&type=Issues) | [@welcome](https://github.com/search?q=repo%3Ajupyterlab%2Fjupyterlab+involves%3Awelcome+updated%3A2021-07-27..2021-07-29&type=Issues)
 
-### 3.1.0
+## 3.1.0
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.0.6...60f37be54a714c391fad5500cb57055af1492591))
 
-#### User-facing changes
+### User-facing changes
 
 - From JupyterLab 3.1, file documents and notebooks have collaborative
   editing using the [Yjs shared editing framework](https://github.com/yjs/yjs).
   Editors are not collaborative by default; to activate it, start JupyterLab
-  with the `--collaborative` flag. See full documentation on [collaboration](https://jupyterlab.readthedocs.io/en/3.6.x/user/rtc.html).
+  with the `--collaborative` flag. See full documentation on [collaboration](https://jupyterlab.readthedocs.io/en/stable/user/rtc.html).
 - The undo/redo history in the notebook is now document-wide (tracking changes across all cells); the future verisions will enable restoring the previous behaviour of per-cell undo/redo.
-- Table of Contents recieved multiple new features and settings described in the [user documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/toc.html).
+- Table of Contents recieved multiple new features and settings described in the [user documentation](https://jupyterlab.readthedocs.io/en/stable/user/toc.html).
 - The debugger recived many improvements, including basic support for evaluating code at a breakpoint, and for variable inspection.
 - The closing bracket is no longer automatically added by default; the old behaviour can be re-enabled from the menu bar (`Settings` -> `Auto Close Brackets`) or from the Advanced Settings Editor.
 - A new visual indicator was introduced to highlight cells in which the code changed in the editor since last execution:
   <img alt="A GIF of the visual indicator showing up after editing a cell." src="https://user-images.githubusercontent.com/21197331/120619861-ae957d80-c45c-11eb-8640-b25b8b659ad4.gif">
 - Many other new features were added as documented below.
 
-#### New features added
+### New features added
 
 - General: Shared editing with collaborative notebook model. [#10118](https://github.com/jupyterlab/jupyterlab/pull/10118) ([@dmonad](https://github.com/dmonad))
 - Debugger: Implemented variable inspection when the debugger has started [#10025](https://github.com/jupyterlab/jupyterlab/pull/10025) ([@JohanMabille](https://github.com/JohanMabille))
@@ -1681,7 +2843,7 @@ No merged PRs
 - Customization: Add `cursorBlinkRate` settings for editors [#10485](https://github.com/jupyterlab/jupyterlab/pull/10485) ([@fcollonval](https://github.com/fcollonval))
 - Licenses: Add a list of licenses accessible from the UI [#9779](https://github.com/jupyterlab/jupyterlab/pull/9779) ([@bollwyvl](https://github.com/bollwyvl))
 
-#### Enhancements made
+### Enhancements made
 
 - Add license-webpack-plugin [#9519](https://github.com/jupyterlab/jupyterlab/pull/9519) ([@bollwyvl](https://github.com/bollwyvl))
 - Focus cells on split and leave cursor in cell with selection when splitting [#10297](https://github.com/jupyterlab/jupyterlab/pull/10297) ([@goanpeca](https://github.com/goanpeca))
@@ -1750,7 +2912,7 @@ No merged PRs
 - Search installed extensions [#7423](https://github.com/jupyterlab/jupyterlab/pull/7423) ([@jtpio](https://github.com/jtpio))
 - Add "go-up" navigation support in filebrowser, fix other shortcuts behaviour [#6859](https://github.com/jupyterlab/jupyterlab/pull/6859) ([@krassowski](https://github.com/krassowski))
 
-#### Bugs fixed
+### Bugs fixed
 
 - Workaround disappearing palette issue by using blur [#10693](https://github.com/jupyterlab/jupyterlab/pull/10693) ([@krassowski](https://github.com/krassowski))
 - Set anonymous username bug [#10686](https://github.com/jupyterlab/jupyterlab/pull/10686) ([@hbcarlos](https://github.com/hbcarlos))
@@ -1777,7 +2939,7 @@ No merged PRs
 - Fix contrast issues in command palette and file browser [#10531](https://github.com/jupyterlab/jupyterlab/pull/10531) ([@krassowski](https://github.com/krassowski))
 - fix running cell when focused on output [#10517](https://github.com/jupyterlab/jupyterlab/pull/10517) ([@cameron-toy](https://github.com/cameron-toy))
 - Check to make sure process.argv exists before using it. [#10507](https://github.com/jupyterlab/jupyterlab/pull/10507) ([@jasongrout](https://github.com/jasongrout))
-- \[HOTFIX\] Render the correct index placeholder cell [#10505](https://github.com/jupyterlab/jupyterlab/pull/10505) ([@echarles](https://github.com/echarles))
+- \[HOTFIX\] Render the correct index placeholder cell [#10505](https://github.com/jupyterlab/jupyterlab/pull/10505) ([@echarles](https://github.com/echarles))
 - Remove content-visibility css prop to avoid jumpy scrollbar [#10503](https://github.com/jupyterlab/jupyterlab/pull/10503) ([@echarles](https://github.com/echarles))
 - Fix checkbox styling [#10483](https://github.com/jupyterlab/jupyterlab/pull/10483) ([@fcollonval](https://github.com/fcollonval))
 - Fix icons code for TOC and listings-info [#10476](https://github.com/jupyterlab/jupyterlab/pull/10476) ([@krassowski](https://github.com/krassowski))
@@ -1838,7 +3000,7 @@ No merged PRs
 - Use Path.resolve() to get canonical case-sensitive path names [#9709](https://github.com/jupyterlab/jupyterlab/pull/9709) ([@jasongrout](https://github.com/jasongrout))
 - Fix use of hyphen in module name [#9655](https://github.com/jupyterlab/jupyterlab/pull/9655) ([@hbcarlos](https://github.com/hbcarlos))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Clean up Link Caching [#10687](https://github.com/jupyterlab/jupyterlab/pull/10687) ([@afshin](https://github.com/afshin))
 - Clean up link checking [#10673](https://github.com/jupyterlab/jupyterlab/pull/10673) ([@blink1073](https://github.com/blink1073))
@@ -1978,7 +3140,7 @@ No merged PRs
 - Make the filebrowser plugins more reusable [#9667](https://github.com/jupyterlab/jupyterlab/pull/9667) ([@jtpio](https://github.com/jtpio))
 - fix: use process/browser module as real polyfill [#9636](https://github.com/jupyterlab/jupyterlab/pull/9636) ([@maartenbreddels](https://github.com/maartenbreddels))
 
-#### Documentation improvements
+### Documentation improvements
 
 - Add alt attirbutes for test docs sprint [#10670](https://github.com/jupyterlab/jupyterlab/pull/10670) ([@isabela-pf](https://github.com/isabela-pf))
 - Add some upgrade notes to JupyterLab 3.1 [#10654](https://github.com/jupyterlab/jupyterlab/pull/10654) ([@fcollonval](https://github.com/fcollonval))
@@ -2039,7 +3201,7 @@ No merged PRs
 - Update notebook toolbar example docs [#9705](https://github.com/jupyterlab/jupyterlab/pull/9705) ([@blink1073](https://github.com/blink1073))
 - DOC: Make code block background less ugly [#9413](https://github.com/jupyterlab/jupyterlab/pull/9413) ([@mgeier](https://github.com/mgeier))
 
-#### Contributors to this release
+### Contributors to this release
 
 ([GitHub contributors page for this release](https://github.com/jupyterlab/jupyterlab/graphs/contributors?from=2021-01-28&to=2021-07-27&type=c))
 
@@ -2056,7 +3218,7 @@ closed.
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.0.15...2badf555436063962451599a81b38b80f601a589))
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - Fix Shutdown Error in Test App [#10240](https://github.com/jupyterlab/jupyterlab/pull/10240) ([@afshin](https://github.com/afshin))
 - Update to `codemirror~=5.58.0` [#10262](https://github.com/jupyterlab/jupyterlab/pull/10262) ([@jtpio](https://github.com/jtpio))
@@ -2065,20 +3227,20 @@ closed.
 
 ([Full Changelog](https://github.com/jupyterlab/jupyterlab/compare/v3.0.14...e1cda8e2fb69a6a01ec261ce13413acd306df4cb))
 
-#### Enhancements made
+### Enhancements made
 
 - Added support for namespace packages in labextensions. [#10150](https://github.com/jupyterlab/jupyterlab/pull/10150) [@mellesies](https://github.com/mellesies)
 
-#### Maintenance and upkeep improvements
+### Maintenance and upkeep improvements
 
 - \[3.0.x\] Remove Dependency on Jupyter Packaging [#10218](https://github.com/jupyterlab/jupyterlab/pull/10218) ([@jtpio](https://github.com/jtpio))
 
-#### Documentation improvements
+### Documentation improvements
 
 - \[3.0.x\] Fix changelong entries for 3.0.13 [#10087](https://github.com/jupyterlab/jupyterlab/pull/10087) ([@blink1073](https://github.com/blink1073))
 - chore: update extension_tutorial [#10026](https://github.com/jupyterlab/jupyterlab/pull/10026) [@0618](https://github.com/0618)
 
-#### Other merged PRs
+### Other merged PRs
 
 - Workaround Chromium issue with iframe reload/href [#10185](https://github.com/jupyterlab/jupyterlab/pull/10185) [@krassowski](https://github.com/krassowski)
 - Update to `sanitize-html~=2.3.3` [#10220](https://github.com/jupyterlab/jupyterlab/pull/10220) [@jtpio](https://github.com/jtpio)
@@ -2266,9 +3428,9 @@ closed.
 
 ### v3.0.0
 
-#### User-facing changes
+### User-facing changes
 
-##### Extensions can be installed without building JupyterLab with NodeJS
+#### Extensions can be installed without building JupyterLab with NodeJS
 
 In JupyterLab 3.0, a new recommended way of distributing and installing
 extensions as Python pip or conda packages is available. Installing such
@@ -2276,30 +3438,30 @@ extensions does not require rebuilding JupyterLab and does not require
 having NodeJS installed. The previous way of distributing extensions as
 npm packages requiring rebuilding JupyterLab is still available as well.
 See the
-[documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html#extensions)
+[documentation](https://jupyterlab.readthedocs.io/en/stable/user/extensions.html#extensions)
 for more details.
 
-##### The JupyterLab interface supports multiple languages
+#### The JupyterLab interface supports multiple languages
 
 JupyterLab now provides the ability to set the display language of the
 user interface. See the
-[documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/language.html)
+[documentation](https://jupyterlab.readthedocs.io/en/stable/user/language.html)
 for more details.
 
-##### A new visual debugger
+#### A new visual debugger
 
 JupyterLab now ships with a debugger front-end by default, available for
 kernels that support the new debugging protocol. See the
-[documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/debugger.html)
+[documentation](https://jupyterlab.readthedocs.io/en/stable/user/debugger.html)
 for more details.
 
-##### Improvements to Simple Interface mode and Mobile
+#### Improvements to Simple Interface mode and Mobile
 
 The Simple Interface mode (previously Single Document Mode) is now more
 streamlined. JupyterLab now supports showing the current file in use in
 the browser URL bar, similar to the classic Jupyter Notebook.
 
-##### Table of Contents is now in core
+#### Table of Contents is now in core
 
 The popular Table of Contents extension is now part of core JupyterLab.
 This core extension makes it easy to see an outline view of notebooks
@@ -2310,7 +3472,7 @@ and other documents.
 The file browser now has a filter input which filters the list of files
 using the same fuzzy matching as the command palette.
 
-##### Property inspector moved to right sidebar
+#### Property inspector moved to right sidebar
 
 The default interface for JupyterLab now has system-wide sidebar panes
 on the left side and sidebar panels that interact with a specific
@@ -2319,7 +3481,7 @@ right side. As always, you can move panes between the left and right
 sidebars (right click on the sidebar icon, or change it in Advanced
 Settings).
 
-##### Command Palette
+#### Command Palette
 
 The command palette is now a floating window that appears on top of your
 JupyterLab workspace. This enables users to quickly invoke a command
@@ -2336,9 +3498,9 @@ the [Migration
 Guide](https://jupyter-server.readthedocs.io/en/stable/operators/migrate-from-nbserver.html)
 to migrate custom notebook configuration to Jupyter Server.
 
-#### For Developers
+### For Developers
 
-##### Prebuilt Extensions
+#### Prebuilt Extensions
 
 Users will typically consume prebuilt extensions, which are Python
 packages with static assets built using `JupyterLab`. See the updated
@@ -2584,7 +3746,7 @@ update extensions to use
 - Jupyterlab as server extension
   ([#7416](https://github.com/jupyterlab/jupyterlab/pull/7416))
 
-##### Internationalization
+#### Internationalization
 
 The JupyterLab UI now supports translation.
 
@@ -2631,7 +3793,7 @@ The JupyterLab UI now supports translation.
   ([#8747](https://github.com/jupyterlab/jupyterlab/pull/8747),
   [#75](https://github.com/jupyterlab/team-compass/issues/75))
 
-##### Table of Contents
+#### Table of Contents
 
 - Update toc ui
   ([#9275](https://github.com/jupyterlab/jupyterlab/pull/9275))
@@ -2649,7 +3811,7 @@ The JupyterLab UI now supports translation.
 - Merge toc extension into core
   ([#8538](https://github.com/jupyterlab/jupyterlab/pull/8538))
 
-##### Other
+#### Other
 
 - Resolve 'restarting' state on reconnect
   ([#9484](https://github.com/jupyterlab/jupyterlab/pull/9484),
@@ -2932,7 +4094,7 @@ The JupyterLab UI now supports translation.
 - Add a debugger section to the user docs and contributing guide
   ([#8977](https://github.com/jupyterlab/jupyterlab/pull/8977))
 
-##### Single Document Mode and Mobile Enhancements
+#### Single Document Mode and Mobile Enhancements
 
 - Make the single document title widget work for widgets that are not
   main area widgets
@@ -2957,7 +4119,7 @@ The JupyterLab UI now supports translation.
 - Incrementally improve jupyterlab mobile ux
   ([#8456](https://github.com/jupyterlab/jupyterlab/pull/8456))
 
-##### Benchmarks (now a separate repository)
+#### Benchmarks (now a separate repository)
 
 - Move benchmarks to seperate repo
   ([#8795](https://github.com/jupyterlab/jupyterlab/pull/8795))
@@ -2973,7 +4135,7 @@ The JupyterLab UI now supports translation.
 - Benchmark notebook loads
   ([#8020](https://github.com/jupyterlab/jupyterlab/pull/8020))
 
-#### Bugfixes
+### Bugfixes
 
 - Fix lerna warning
   ([#9061](https://github.com/jupyterlab/jupyterlab/pull/9061))
@@ -3066,9 +4228,9 @@ The JupyterLab UI now supports translation.
 - Reconnect a websocket when a kernel is restarted.
   ([#8432](https://github.com/jupyterlab/jupyterlab/pull/8432))
 
-### [v2.2.x](https://github.com/jupyterlab/jupyterlab/milestone/53)
+## [v2.2.x](https://github.com/jupyterlab/jupyterlab/milestone/53)
 
-### [v2.2.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.2.0)
+## [v2.2.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.2.0)
 
 See the [JupyterLab
 2.2](https://github.com/jupyterlab/jupyterlab/milestone/53?closed=1)
@@ -3080,7 +4242,7 @@ closed.
 We are very excited to add Eric Charles to the core team this month!
 ([#8513](https://github.com/jupyterlab/jupyterlab/pull/8513))
 
-#### User-facing changes
+### User-facing changes
 
 - Cells can no longer be executed while kernels are terminating or
   restarting. There is a new status for these events on the Kernel
@@ -3127,7 +4289,7 @@ We are very excited to add Eric Charles to the core team this month!
 
 <img alt="Demonstrating editing an SVG in one tab and while it is previewed live in another tab." src="https://user-images.githubusercontent.com/45380/83218329-c8123400-a13b-11ea-9137-6b91a29dbc08.png" class="jp-screenshot">
 
-#### For developers
+### For developers
 
 - Specify that we recommend typescript over javascript for extensions
   ([#8411](https://github.com/jupyterlab/jupyterlab/pull/8411))
@@ -3148,7 +4310,7 @@ We are very excited to add Eric Charles to the core team this month!
 - Improve whitelist figure description in documentation
   ([#8517](https://github.com/jupyterlab/jupyterlab/pull/8517))
 
-#### Bugfixes
+### Bugfixes
 
 - Typo: fix extensino to extension
   ([#8512](https://github.com/jupyterlab/jupyterlab/pull/8512))
@@ -3194,7 +4356,7 @@ We are very excited to add Eric Charles to the core team this month!
   ([#8593](https://github.com/jupyterlab/jupyterlab/pull/8593),
   [#8587](https://github.com/jupyterlab/jupyterlab/issues/8587))
 
-### [v2.1.x](https://github.com/jupyterlab/jupyterlab/milestone/55)
+## [v2.1.x](https://github.com/jupyterlab/jupyterlab/milestone/55)
 
 ### v2.1.2
 
@@ -3214,16 +4376,16 @@ We are very excited to add Eric Charles to the core team this month!
 - Fix Save As for files without sessions
   ([#8248](https://github.com/jupyterlab/jupyterlab/pull/8248))
 
-### [v2.1.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.1.0)
+## [v2.1.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.1.0)
 
-#### April 2020
+### April 2020
 
 See the [JupyterLab
 2.1](https://github.com/jupyterlab/jupyterlab/milestone/49?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### User-facing changes
+### User-facing changes
 
 - Display the extension manager in the left sidebar by default. Users
   will need to acknowledge the disclaimer in the extension manager
@@ -3240,7 +4402,7 @@ closed.
   notebook toolbar
   ([#8024](https://github.com/jupyterlab/jupyterlab/pull/8024))
 
-<img alt="The main JupyterLab toolbar with focus on the Restart Kernel and Run All Cells button." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/changelog_restartrunallbutton.png" class="jp-screenshot">
+<img alt="The main JupyterLab toolbar with focus on the Restart Kernel and Run All Cells button." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/changelog_restartrunallbutton.png" class="jp-screenshot">
 
 - Added a context menu item for opening a Markdown editor from the
   Markdown preview
@@ -3286,7 +4448,7 @@ closed.
   }
   ```
 
-#### For developers
+### For developers
 
 - `NotebookWidgetFactory` is now a plugin so it can be overridden
   ([#8066](https://github.com/jupyterlab/jupyterlab/pull/8066),
@@ -3303,7 +4465,7 @@ closed.
   ([#7877](https://github.com/jupyterlab/jupyterlab/pull/7877),
   [#7670](https://github.com/jupyterlab/jupyterlab/issues/7670))
 
-#### Bugfixes
+### Bugfixes
 
 - Fix property inspector restoration on reload
   ([#8114](https://github.com/jupyterlab/jupyterlab/pull/8114))
@@ -3327,9 +4489,9 @@ closed.
   ([#7832](https://github.com/jupyterlab/jupyterlab/pull/7832),
   [#7760](https://github.com/jupyterlab/jupyterlab/pull/7760))
 
-### [v2.0.2](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.0.2)
+## [v2.0.2](https://github.com/jupyterlab/jupyterlab/releases/tag/v2.0.2)
 
-#### April 2020
+### April 2020
 
 See the [JupyterLab
 2.0.2](https://github.com/jupyterlab/jupyterlab/milestone/50?closed=1)
@@ -3349,33 +4511,33 @@ closed.
   not including `undefined`
   ([#8032](https://github.com/jupyterlab/jupyterlab/pull/8032))
 
-### [v2.0.0](https://github.com/jupyterlab/jupyterlab/releases)
+## [v2.0.0](https://github.com/jupyterlab/jupyterlab/releases)
 
-#### February 2020
+### February 2020
 
 Here are some highlights for this release. See the [JupyterLab
 2.0](https://github.com/jupyterlab/jupyterlab/milestone/36?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### User-facing changes
+### User-facing changes
 
 - New user interface for notebook cell tags
   ([#7407](https://github.com/jupyterlab/jupyterlab/pull/7407),
   [#7786](https://github.com/jupyterlab/jupyterlab/pull/7786))
 
-<img alt="Notebook cell tags in the left sidebar next to an open notebook." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/changelog_celltags.png" class="jp-screenshot">
+<img alt="Notebook cell tags in the left sidebar next to an open notebook." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/changelog_celltags.png" class="jp-screenshot">
 
 - File info display when hovering on a file in the file browser
   ([#7485](https://github.com/jupyterlab/jupyterlab/pull/7485),
   [#7352](https://github.com/jupyterlab/jupyterlab/issues/7352))
 
-<img alt="The file browser with a tooltip describing a notebook's info like the name, size, and kernel." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/changelog_fileinfo.png" class="jp-screenshot">
+<img alt="The file browser with a tooltip describing a notebook's info like the name, size, and kernel." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/changelog_fileinfo.png" class="jp-screenshot">
 
 - Support for searching outputs in notebooks
   ([#7258](https://github.com/jupyterlab/jupyterlab/pull/7258))
 
-<img alt="A notebook with multiple cells and the cell output searching in the upper right." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/changelog_searchoutput.png" class="jp-screenshot">
+<img alt="A notebook with multiple cells and the cell output searching in the upper right." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/changelog_searchoutput.png" class="jp-screenshot">
 
 - `Ctrl Shift .` and `Ctrl Shift ,` shortcuts move focus to the next
   and previous tab bar in the main area, respectively
@@ -3477,12 +4639,12 @@ closed.
   setting instead of the deprecated and now removed `labhubapp`
   ([#7724](https://github.com/jupyterlab/jupyterlab/pull/7724))
 
-#### For developers
+### For developers
 
 See `extension_migration` for help in
 migrating extensions to JupyterLab 2.0.
 
-##### Backward incompatible changes
+#### Backward incompatible changes
 
 - Switch from `@phosphor` to `@lumino` dependencies.
   ([#7582](https://github.com/jupyterlab/jupyterlab/pull/7582),
@@ -3539,7 +4701,7 @@ migrating extensions to JupyterLab 2.0.
   [#7864](https://github.com/jupyterlab/jupyterlab/pull/7864),
   [#7886](https://github.com/jupyterlab/jupyterlab/pull/7886))
 
-##### Other changes
+#### Other changes
 
 - New property inspector used to display the properties of the
   currently selected main area widget
@@ -3618,7 +4780,7 @@ migrating extensions to JupyterLab 2.0.
 - Apply all options to the initial JupyterLab application instance
   ([#7251](https://github.com/jupyterlab/jupyterlab/pull/7251))
 
-#### Bugfixes
+### Bugfixes
 
 - "Copy Shareable Link" in the file browser context menu now
   properly works in JupyterHub
@@ -3713,16 +4875,16 @@ migrating extensions to JupyterLab 2.0.
   ([#7268](https://github.com/jupyterlab/jupyterlab/pull/7268),
   [#7264](https://github.com/jupyterlab/jupyterlab/issues/7264))
 
-### [v1.2.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.2.0)
+## [v1.2.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.2.0)
 
-#### October 29, 2019
+### October 29, 2019
 
 Here are some highlights for this release. See the [JupyterLab
 1.2.0](https://github.com/jupyterlab/jupyterlab/milestone/38?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### User-facing changes
+### User-facing changes
 
 - Select cells from the current cell to the top of the notebook with
   `Shift Home`, to the bottom of the notebook with `Shift End`
@@ -3756,7 +4918,7 @@ closed.
   [#7249](https://github.com/jupyterlab/jupyterlab/pull/7249),
   [#7248](https://github.com/jupyterlab/jupyterlab/issues/7248))
 
-#### For developers
+### For developers
 
 - Update the Markdown renderer (`marked`) to 0.7.0
   ([#7328](https://github.com/jupyterlab/jupyterlab/pull/7328))
@@ -3781,7 +4943,7 @@ closed.
   ([#6864](https://github.com/jupyterlab/jupyterlab/pull/6864),
   [#3320](https://github.com/jupyterlab/jupyterlab/issues/3320))
 
-#### Bugfixes
+### Bugfixes
 
 - Fix the `file-browser-path` query parameter
   ([#7313](https://github.com/jupyterlab/jupyterlab/pull/7313))
@@ -3803,16 +4965,16 @@ closed.
   [#7417](https://github.com/jupyterlab/jupyterlab/pull/7417),
   [#7419](https://github.com/jupyterlab/jupyterlab/pull/7419))
 
-### [v1.1.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.1.0)
+## [v1.1.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.1.0)
 
-#### August 28, 2019
+### August 28, 2019
 
 Here are some highlights of what is in this release. See the [JupyterLab
 1.1.0](https://github.com/jupyterlab/jupyterlab/milestone/31?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### User-facing changes
+### User-facing changes
 
 - `jupyter lab build` now has a `--minimize=False` option to build
   without minimization to conserve memory and time
@@ -3846,7 +5008,7 @@ closed.
   JupyterLab server extension. See the issue for more details
   ([#7042](https://github.com/jupyterlab/jupyterlab/issues/7042))
 
-#### For developers
+### For developers
 
 - Expose install_kernel for tests so that outside projects can better
   use the testing framework
@@ -3871,7 +5033,7 @@ closed.
 - Add server side coreconfig object
   ([#6991](https://github.com/jupyterlab/jupyterlab/pull/6991))
 
-#### Bug fixes
+### Bug fixes
 
 - Handle errors that occur during kernel selection
   ([#7094](https://github.com/jupyterlab/jupyterlab/pull/7094))
@@ -3898,7 +5060,7 @@ closed.
   ([#6933](https://github.com/jupyterlab/jupyterlab/pull/6933),
   [#6935](https://github.com/jupyterlab/jupyterlab/pull/6935))
 
-### [v1.0.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.0.0)
+## [v1.0.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v1.0.0)
 
 ### June 28, 2019
 
@@ -3907,9 +5069,9 @@ See the [JupyterLab
 milestone on GitHub for the full list of pull requests and issues closed
 in 1.0.0, and other 1.0.x milestones for bugs fixed in patch releases.
 
-#### Find and Replace
+### Find and Replace
 
-<img alt="A notebook with multiple cells and the find and replace interface in the upper right." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/find.png" class="jp-screenshot">
+<img alt="A notebook with multiple cells and the find and replace interface in the upper right." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/find.png" class="jp-screenshot">
 
 We have added first class support for find and replace across
 JupyterLab. It is currently supported in notebooks and text files and is
@@ -3930,9 +5092,9 @@ extensible for other widgets who wish to support it.
 [#5795](https://github.com/jupyterlab/jupyterlab/pull/5795),
 [#1074](https://github.com/jupyterlab/jupyterlab/issues/1074))
 
-#### Status Bar
+### Status Bar
 
-<img alt="A screenshot of the updated JupyterLab status bar." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.6.x/docs/source/getting_started/statusbar.png" class="jp-screenshot">
+<img alt="A screenshot of the updated JupyterLab status bar." src="https://raw.githubusercontent.com/jupyterlab/jupyterlab/3.1.x/docs/source/getting_started/statusbar.png" class="jp-screenshot">
 
 We have integrated the [JupyterLab Status Bar
 package](https://github.com/jupyterlab/jupyterlab-statusbar) package
@@ -3956,14 +5118,14 @@ well ([#5577](https://github.com/jupyterlab/jupyterlab/pull/5577),
   ([#6087](https://github.com/jupyterlab/jupyterlab/pull/6087),
   [#5966](https://github.com/jupyterlab/jupyterlab/issues/5966))
 
-#### Printing
+### Printing
 
 We now have a printing system that allows extensions to customize how
 documents and activities are printed.
 ([#5850](https://github.com/jupyterlab/jupyterlab/pull/5850),
 [#1314](https://github.com/jupyterlab/jupyterlab/issues/1314))
 
-#### Other User Facing Changes
+### Other User Facing Changes
 
 - The launcher displays longer kernel names and supports keyboard
   navigation
@@ -4185,7 +5347,7 @@ documents and activities are printed.
   ([#5682](https://github.com/jupyterlab/jupyterlab/pull/5682),
   [#2399](https://github.com/jupyterlab/jupyterlab/issues/2399))
 
-#### Settings
+### Settings
 
 - The settings system has been rewritten
   ([#5470](https://github.com/jupyterlab/jupyterlab/pull/5470),
@@ -4233,7 +5395,7 @@ There are new settings for many following items, including:
   ([#6026](https://github.com/jupyterlab/jupyterlab/pull/6026),
   [#4867](https://github.com/jupyterlab/jupyterlab/issues/4867))
 
-#### Command Line Changes
+### Command Line Changes
 
 - Installing extensions will be quieter and adds a `--debug` to
   extension installing
@@ -4261,7 +5423,7 @@ There are new settings for many following items, including:
   [#5695](https://github.com/jupyterlab/jupyterlab/pull/5695),
   [#5694](https://github.com/jupyterlab/jupyterlab/issues/5694))
 
-#### Extension Development Changes
+### Extension Development Changes
 
 - We have rewritten how extensions provide keyboard shortcuts and
   interact with the settings system. If you previously defined
@@ -4420,16 +5582,16 @@ There are new settings for many following items, including:
   `app.shell.add(widget)` or `app.shell.add(widget, 'main')`, see
   [here](https://github.com/jupyterlab/jupyterlab/blob/da8e7bda5eebd22319f59e5abbaaa9917872a7e8/packages/application/src/shell.ts#L500).
 
-### [v0.35.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.35.0)
+## [v0.35.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.35.0)
 
-#### October 3, 2018
+### October 3, 2018
 
 See the [JupyterLab
 0.35.0](https://github.com/jupyterlab/jupyterlab/milestone/18?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### Features
+### Features
 
 - A notebook cell can now be readonly, reflecting its `enabled`
   metadata.
@@ -4467,7 +5629,7 @@ closed.
   ([#5147](https://github.com/jupyterlab/jupyterlab/pull/5147),
   [#5042](https://github.com/jupyterlab/jupyterlab/issues/5042))
 
-#### Dark theme
+### Dark theme
 
 - Show a dark splash screen when using a dark theme.
   ([#5339](https://github.com/jupyterlab/jupyterlab/pull/5339),
@@ -4484,7 +5646,7 @@ closed.
 - Fix notebook cell dropdown legibility in a dark theme.
   ([#5168](https://github.com/jupyterlab/jupyterlab/issues/5168))
 
-#### Bug fixes
+### Bug fixes
 
 - Various save options in the file menu and toolbar are now disabled
   when a file is not writable.
@@ -4516,7 +5678,7 @@ closed.
   [#5340](https://github.com/jupyterlab/jupyterlab/pull/5340),
   [#5153](https://github.com/jupyterlab/jupyterlab/issues/5153))
 
-#### Build system
+### Build system
 
 - Use Typescript 3.1.
   ([#5360](https://github.com/jupyterlab/jupyterlab/pull/5360))
@@ -4547,7 +5709,7 @@ closed.
   ([#5259](https://github.com/jupyterlab/jupyterlab/pull/5259),
   [#5257](https://github.com/jupyterlab/jupyterlab/issues/5257))
 
-#### For Developers
+### For Developers
 
 - Default toolbar buttons can be overridden, and mime renderers can
   now specify toolbar buttons.
@@ -4558,16 +5720,16 @@ closed.
   registry, service manager, and command linker.
   ([#5291](https://github.com/jupyterlab/jupyterlab/pull/5291))
 
-### [v0.34.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.34.0)
+## [v0.34.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.34.0)
 
-#### August 18, 2018
+### August 18, 2018
 
 See the [JupyterLab
 0.34.0](https://github.com/jupyterlab/jupyterlab/milestone/16?closed=1)
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### Key Features
+### Key Features
 
 - Notebooks, consoles, and text files now have access to completions
   for local tokens.
@@ -4577,7 +5739,7 @@ closed.
 - Added "Open From Path..."" to top level `File` menu.
 - Added "Copy Download Link" to context menu for files.
 
-#### Changes for Developers
+### Changes for Developers
 
 - Notebooks, consoles, and text files now have access to completions
   for local tokens. If a text file has a running kernel associated
@@ -4686,7 +5848,7 @@ closed.
   `ServerConnection`.
   ([#5111](https://github.com/jupyterlab/jupyterlab/pull/5111))
 
-#### Other Changes
+### Other Changes
 
 - Added the pipe (`|`) character as a CSV delimiter option.
   ([#5112](https://github.com/jupyterlab/jupyterlab/pull/5112))
@@ -4707,7 +5869,7 @@ closed.
   ([#5097](https://github.com/jupyterlab/jupyterlab/pull/5097) and
   [#5130](https://github.com/jupyterlab/jupyterlab/pull/5130))
 
-#### Bug Fixes
+### Bug Fixes
 
 - Fixed a bug in the rendering of the "New Notebook" item of the
   command palette.
@@ -4721,7 +5883,7 @@ closed.
   than sometimes selecting it for a rename.
   ([#5101](https://github.com/jupyterlab/jupyterlab/pull/5101))
 
-### [v0.33.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.33.0)
+## [v0.33.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.33.0)
 
 ### July 26, 2018
 
@@ -4730,9 +5892,22 @@ See the [JupyterLab
 milestone on GitHub for the full list of pull requests and issues
 closed.
 
-#### Key Features:
+### Key Features:
+
+- [No longer in beta](#no-longer-in-beta)
+- [Workspaces](#workspaces)
+- [Menu items](#menu-items)
+- [Keyboard shortcuts](#keyboard-shortcuts)
+- [Command palette items](#command-palette-items)
+- [Settings](#settings)
+- [Larger file uploads](#larger-file-uploads)
+- [Extension management and installation](#extension-management-and-installation)
+- [Interface changes](#interface-changes)
+- [Renderers](#renderers)
+- [Changes for developers](#changes-for-developers)
+- [Other fixes](#other-fixes)
 
-#### No longer in beta
+### No longer in beta
 
 In JupyterLab 0.33, we removed the "Beta" label to better signal that
 JupyterLab is ready for users to use on a daily basis. The extension
@@ -4741,7 +5916,7 @@ details.
 ([#4898](https://github.com/jupyterlab/jupyterlab/issues/4898),
 [#4920](https://github.com/jupyterlab/jupyterlab/pull/4920))
 
-#### Workspaces
+### Workspaces
 
 We added new workspace support, which enables you to have multiple saved
 layouts, including in different browser windows. See the
@@ -4753,7 +5928,7 @@ layouts, including in different browser windows. See the
 [#3673](https://github.com/jupyterlab/jupyterlab/issues/3673),
 [#4780](https://github.com/jupyterlab/jupyterlab/pull/4780))
 
-#### Menu items
+### Menu items
 
 - "Activate Previously Used Tab" added to the Tab menu
   (`Ctrl/Cmd Shift '`) to toggle between the previously active tabs in
@@ -4784,7 +5959,7 @@ layouts, including in different browser windows. See the
   consistency (same for right sidebar).
   ([#3818](https://github.com/jupyterlab/jupyterlab/pull/3818))
 
-#### Keyboard shortcuts
+### Keyboard shortcuts
 
 - "Save As..." given the keyboard shortcut `Ctrl/Cmd Shift S`.
   ([#4560](https://github.com/jupyterlab/jupyterlab/pull/4560))
@@ -4799,7 +5974,7 @@ layouts, including in different browser windows. See the
   `Shift Enter` as a Console setting.
   ([#4054](https://github.com/jupyterlab/jupyterlab/pull/4054))
 
-#### Command palette items
+### Command palette items
 
 - "Notebook" added to the command palette to open a new notebook.
   ([#4812](https://github.com/jupyterlab/jupyterlab/pull/4812))
@@ -4831,7 +6006,7 @@ layouts, including in different browser windows. See the
   ([#4533](https://github.com/jupyterlab/jupyterlab/pull/4533),
   [#4510](https://github.com/jupyterlab/jupyterlab/pull/4510))
 
-#### Settings
+### Settings
 
 - "fontFamily", "fontSize", and "lineHeight" settings added to the
   text editor advanced settings.
@@ -4839,13 +6014,13 @@ layouts, including in different browser windows. See the
 - Solarized dark and light text editor themes from CodeMirror.
   ([#4445](https://github.com/jupyterlab/jupyterlab/pull/4445))
 
-#### Larger file uploads
+### Larger file uploads
 
 - Support for larger file uploads (>15MB) when using Jupyter notebook
   server version >= 5.1.
   ([#4224](https://github.com/jupyterlab/jupyterlab/pull/4224))
 
-#### Extension management and installation
+### Extension management and installation
 
 - New extension manager for installing JupyterLab extensions from npm
   within the JupyterLab UI. You can enable this from the Advanced
@@ -4858,7 +6033,7 @@ layouts, including in different browser windows. See the
   yarn](https://github.com/yarnpkg/yarn/issues/5935) is fixed.
   ([#4804](https://github.com/jupyterlab/jupyterlab/pull/4804))
 
-#### Interface changes
+### Interface changes
 
 - Wider tabs in the main working area to show longer filenames.
   ([#4801](https://github.com/jupyterlab/jupyterlab/pull/4801))
@@ -4874,7 +6049,7 @@ layouts, including in different browser windows. See the
   [#3957](https://github.com/jupyterlab/jupyterlab/issues/3957),
   [#4966](https://github.com/jupyterlab/jupyterlab/pull/4966))
 
-#### Renderers
+### Renderers
 
 - JupyterLab now ships with a Vega4 renderer by default (upgraded from
   Vega3).
@@ -4888,7 +6063,7 @@ layouts, including in different browser windows. See the
 - Javascript execution in notebook cells has been re-enabled.
   ([#4515](https://github.com/jupyterlab/jupyterlab/pull/4682))
 
-#### Changes for developers
+### Changes for developers
 
 - A new signal for observing application dirty status state changes.
   ([#4840](https://github.com/jupyterlab/jupyterlab/issues/4840))
@@ -5033,7 +6208,7 @@ Changes in the JupyterLab code infrastructure include:
 - Various process utilities were moved to `jupyterlab_server`.
   ([#4696](https://github.com/jupyterlab/jupyterlab/pull/4696))
 
-#### Other fixes
+### Other fixes
 
 - Fixed a rendering bug with the Launcher in single-document mode.
   ([#4805](https://github.com/jupyterlab/jupyterlab/pull/4805))
@@ -5075,9 +6250,9 @@ Changes in the JupyterLab code infrastructure include:
   strings.
   ([#4480](https://github.com/jupyterlab/jupyterlab/pull/4480))
 
-### [Beta 2 (v0.32.0)](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.32.0)
+## [Beta 2 (v0.32.0)](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.32.0)
 
-#### Apr 16, 2018
+### Apr 16, 2018
 
 This is the second in the JupyterLab Beta series of releases. It
 contains many enhancements, bugfixes, and refinements, including:
@@ -5122,13 +6297,13 @@ contains many enhancements, bugfixes, and refinements, including:
 - Handle asynchronous comm messages in the services library more
   correctly (Note: this means `@jupyterlab/services` is now at version
   2.0!)
-  ([\[#4115\](https://github.com/jupyterlab/jupyterlab/issues/4115)](https://github.com/jupyterlab/jupyterlab/pull/4115)).
+  (\[[#4115](https://github.com/jupyterlab/jupyterlab/issues/4115)\](https://github.com/jupyterlab/jupyterlab/pull/4115)).
 - Display the kernel banner in the console when a kernel is restarted
   to mark the restart
-  ([\[#3663\](https://github.com/jupyterlab/jupyterlab/issues/3663)](https://github.com/jupyterlab/jupyterlab/pull/3663)).
+  (\[[#3663](https://github.com/jupyterlab/jupyterlab/issues/3663)\](https://github.com/jupyterlab/jupyterlab/pull/3663)).
 - Many tweaks to the UI, as well as better error handling.
 
-### [Beta 1 (v0.31.0)](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.31.0)
+## [Beta 1 (v0.31.0)](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.31.0)
 
 ### Jan 11, 2018
 
@@ -5159,9 +6334,9 @@ contains many enhancements, bugfixes, and refinements, including:
   <https://github.com/jupyterlab/jupyterlab/pull/3408>
   <https://github.com/jupyterlab/jupyterlab/pull/3418>
 
-### [v0.30.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.30.0)
+## [v0.30.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.30.0)
 
-#### Dec 05, 2017
+### Dec 05, 2017
 
 - Semantic menus: <https://github.com/jupyterlab/jupyterlab/pull/3182>
 - Settings editor now allows comments and provides setting validation:
@@ -5182,16 +6357,16 @@ contains many enhancements, bugfixes, and refinements, including:
   for unreleased JavaScript and shows the red banner at the top of the
   page. <https://github.com/jupyterlab/jupyterlab/pull/3270>
 
-### [v0.29.2](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.29.2)
+## [v0.29.2](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.29.2)
 
-#### Nov 17, 2017
+### Nov 17, 2017
 
 Bug fix for file browser right click handling.
 <https://github.com/jupyterlab/jupyterlab/issues/3019>
 
-### [v0.29.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.29.0)
+## [v0.29.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.29.0)
 
-#### Nov 09, 2017
+### Nov 09, 2017
 
 - Create new view of cell in cell context menu.
   [#3159](https://github.com/jupyterlab/jupyterlab/issues/3159)
@@ -5203,9 +6378,9 @@ Bug fix for file browser right click handling.
 - Standalone Cell Example.
   [#3155](https://github.com/jupyterlab/jupyterlab/issues/3155)
 
-### [v0.28.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.28.0)
+## [v0.28.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.28.0)
 
-#### Oct 16, 2017
+### Oct 16, 2017
 
 This release generally focuses on developer and extension author
 enhancements and general bug fixes.
@@ -5227,9 +6402,9 @@ enhancements and general bug fixes.
   [#2974](https://github.com/jupyterlab/jupyterlab/issues/2974)
 - Numerous bug fixes and style enhancements.
 
-### [v0.27.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.27.0)
+## [v0.27.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.27.0)
 
-#### Aug 23, 2017
+### Aug 23, 2017
 
 - Added support for dynamic theme loading.
   <https://github.com/jupyterlab/jupyterlab/pull/2759>
@@ -5241,7 +6416,7 @@ enhancements and general bug fixes.
   [#2867](https://github.com/jupyterlab/jupyterlab/issues/2867)
 - Numerous bug fixes and style improvements.
 
-### [v0.26.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.26.0)
+## [v0.26.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.26.0)
 
 ### Jul 21, 2017
 
@@ -5254,7 +6429,7 @@ enhancements and general bug fixes.
   better use of the widget lifecycle:
   <https://github.com/jupyterlab/jupyterlab/pull/2661>
 
-### [v0.25.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.25.0)
+## [v0.25.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.25.0)
 
 ### Jul 07, 2017
 
@@ -5272,7 +6447,7 @@ enhancements and general bug fixes.
   <https://github.com/jupyterlab/jupyterlab/pull/2580>
 - Numerous bug fixes and style updates.
 
-### [v0.24.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.24.0)
+## [v0.24.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.24.0)
 
 ### Jun 16, 2017
 
@@ -5295,7 +6470,7 @@ enhancements and general bug fixes.
   [#2410](https://github.com/jupyterlab/jupyterlab/issues/2410)
 - Numerous bug fixes and style improvements.
 
-### [v0.23.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.23.0)
+## [v0.23.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.23.0)
 
 ### Jun 02, 2017
 
@@ -5311,9 +6486,9 @@ enhancements and general bug fixes.
   <https://github.com/jupyterlab/jupyterlab/pull/2266>
 - Various bug fixes and style improvements.
 
-### [v0.22.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.22.0)
+## [v0.22.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.22.0)
 
-#### May 18, 2017
+### May 18, 2017
 
 - Export To... for notebooks.
   <https://github.com/jupyterlab/jupyterlab/pull/2200>
@@ -5338,9 +6513,9 @@ enhancements and general bug fixes.
   <https://github.com/jupyterlab/jupyterlab/pull/2185>
 - Cleanup, bug fixes, and style updates.
 
-### [v0.20.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.20.0)
+## [v0.20.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.20.0)
 
-#### Apr 21, 2017
+### Apr 21, 2017
 
 Release Notes:
 
@@ -5357,9 +6532,9 @@ Release Notes:
 
 Numerous bug fixes and improvements.
 
-### [v0.19.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.19.0)
+## [v0.19.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.19.0)
 
-#### Apr 04, 2017
+### Apr 04, 2017
 
 Mainly backend-focused release with compatibility with Phosphor 1.0 and
 a big refactor of session handling (the ClientSession class) that
@@ -5371,9 +6546,9 @@ big split.
 <https://github.com/jupyterlab/jupyterlab/pull/1984>
 <https://github.com/jupyterlab/jupyterlab/pull/1927>
 
-### [v0.18.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.18.0)
+## [v0.18.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.18.0)
 
-#### Mar 21, 2017
+### Mar 21, 2017
 
 - Split the repository into multiple packages that are managed using
   the lerna build tool.
@@ -5382,9 +6557,9 @@ big split.
   <https://github.com/jupyterlab/jupyterlab/pull/1880>
 - Numerous bug fixes and style updates.
 
-### [v0.17.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.17.0)
+## [v0.17.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.17.0)
 
-#### Mar 01, 2017
+### Mar 01, 2017
 
 - Upgrade to new `@phosphor` packages * brings a new Command Palette
   interaction that should be more intuitive, and restores the ability
@@ -5399,9 +6574,9 @@ big split.
   <https://github.com/jupyterlab/jupyterlab/pull/1764>
 - Numerous style updates and bug fixes.
 
-### [v0.16.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.16.0)
+## [v0.16.0](https://github.com/jupyterlab/jupyterlab/releases/tag/v0.16.0)
 
-#### Feb 09, 2017
+### Feb 09, 2017
 
 - Adds a Cell Tools sidebar that allows you to edit notebook cell
   metadata.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ddfdf8ce8b54..a389d39bd1ce 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,5 +4,5 @@ If you're reading this section, you're probably interested in contributing to
 JupyterLab. Welcome and thanks for your interest in contributing!
 
 Please take a look at Contributing to Jupyterlab on
-[Read the Docs](https://jupyterlab.readthedocs.io/en/3.6.x/developer/contributing.html) or
+[Read the Docs](https://jupyterlab.readthedocs.io/en/stable/developer/contributing.html) or
 [Repo docs](docs/source/developer/contributing.rst) (for the latest).
diff --git a/Dockerfile b/Dockerfile
deleted file mode 100644
index cf33c3b29731..000000000000
--- a/Dockerfile
+++ /dev/null
@@ -1,48 +0,0 @@
-FROM mambaorg/micromamba:0.14.0 as build
-
-# Install basic tools
-RUN micromamba install -qy -c conda-forge python nodejs yarn \
-    && useradd --shell /bin/bash jovyan \
-    && chown jovyan $HOME
-
-# Install npm packages - faster build thanks to caching
-## package_json.tar.gz contains all package.json files using 
-## `tar cvf package_json.tar.gz package.json packages/*/package.package_json`
-ADD ./package_json.tar.gz /tmp/jupyterlab-dev
-COPY yarn.lock /tmp/jupyterlab-dev
-
-RUN cd /tmp/jupyterlab-dev \
-    && yarn install --ignore-scripts
-
-# Install python dependencies - faster build thanks to caching
-COPY setup.cfg /tmp
-
-RUN list_package=$(python -c "from configparser import ConfigParser; c = ConfigParser(); c.read('/tmp/setup.cfg'); print(' '.join(c['options']['install_requires'].strip().splitlines()))") \
-    && micromamba install -qy -c conda-forge $list_package \
-    && micromamba clean -ay \
-    && rm /tmp/setup.cfg
-
-# Install JupyterLab
-COPY --chown=jovyan ./builder/ /tmp/jupyterlab-dev/builder/
-COPY --chown=jovyan ./buildutils/ /tmp/jupyterlab-dev/buildutils/
-COPY --chown=jovyan ./dev_mode/ /tmp/jupyterlab-dev/dev_mode/
-COPY --chown=jovyan ./jupyterlab/ /tmp/jupyterlab-dev/jupyterlab/
-COPY --chown=jovyan ./packages/ /tmp/jupyterlab-dev/packages/
-COPY --chown=jovyan ./scripts/ /tmp/jupyterlab-dev/scripts/
-COPY --chown=jovyan ./*.* ./LICENSE /tmp/jupyterlab-dev/
-
-RUN pushd /tmp/jupyterlab-dev \
-    && pip install -e .[ui-tests]
-
-USER jovyan
-WORKDIR ${HOME}
-
-ENV PATH="/home/micromamba/.local/bin:$PATH"
-
-RUN mkdir -p /home/micromamba/jlab_root
-
-COPY ./docker/jupyter_server_config.json /etc/jupyter/
-
-EXPOSE 8888
-
-ENTRYPOINT ["jupyter", "lab"]
diff --git a/LICENSE b/LICENSE
index 491063d867d6..882b961e1d23 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2015-2021 Project Jupyter Contributors
+Copyright (c) 2015-2022 Project Jupyter Contributors
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/MANIFEST.in b/MANIFEST.in
deleted file mode 100644
index d804fad88ff4..000000000000
--- a/MANIFEST.in
+++ /dev/null
@@ -1,48 +0,0 @@
-include package.json
-include LICENSE
-include *.md
-include pyproject.toml
-include setup.py
-include setup.cfg
-include conftest.py
-
-# Documentation
-graft docs
-exclude docs/\#*
-prune docs/api
-prune docs/build
-
-# We must include the package_data files since include_package_data=True
-# See https://github.com/pypa/setuptools/issues/1461
-include jupyterlab/staging/*
-include jupyterlab/staging/templates/*
-include jupyterlab/staging/.yarnrc
-graft jupyterlab/static
-graft jupyterlab
-graft jupyterlab/tests
-graft jupyterlab/tests/mock_packages
-graft jupyterlab/themes
-graft jupyterlab/schemas
-graft jupyter-config
-recursive-include jupyterlab *.js
-
-prune jupyterlab/**/node_modules
-prune jupyterlab/staging/build
-
-recursive-exclude jupyterlab *.pyc
-recursive-exclude jupyterlab *.js.map
-
-# Galata
-include galata/README.md
-include galata/jupyter_server_test_config.py
-include galata/update_snapshots.py
-include galata/*.js
-recursive-include galata/media *.*
-graft galata/src
-graft galata/style
-graft galata/test
-
-# Docker
-include Dockerfile
-include .dockerignore
-recursive-include docker *.json
diff --git a/README.md b/README.md
index 7a35e5b92847..6593658e3e47 100644
--- a/README.md
+++ b/README.md
@@ -9,26 +9,24 @@
 
 [![PyPI version](https://badge.fury.io/py/jupyterlab.svg)](https://badge.fury.io/py/jupyterlab)
 [![Downloads](https://static.pepy.tech/badge/jupyterlab/month)](https://pepy.tech/project/jupyterlab)
-[![Build Status](https://github.com/jupyterlab/jupyterlab/workflows/Linux%20Tests/badge.svg)](https://github.com/jupyterlab/jupyterlab/actions?query=branch%3Amaster+workflow%3A%22Linux+Tests%22)
-[![Build Status](https://github.com/jupyterlab/jupyterlab/workflows/Windows%20Tests/badge.svg)](https://github.com/jupyterlab/jupyterlab/actions?query=branch%3Amaster+workflow%3A%22Windows+Tests%22)
+[![Build Status](https://github.com/jupyterlab/jupyterlab/workflows/Linux%20Tests/badge.svg)](https://github.com/jupyterlab/jupyterlab/actions?query=branch%3Amain+workflow%3A%22Linux+Tests%22)
+[![Build Status](https://github.com/jupyterlab/jupyterlab/workflows/Windows%20Tests/badge.svg)](https://github.com/jupyterlab/jupyterlab/actions?query=branch%3Amain+workflow%3A%22Windows+Tests%22)
 [![Documentation Status](https://readthedocs.org/projects/jupyterlab/badge/?version=stable)](http://jupyterlab.readthedocs.io/en/stable/)
 [![Crowdin](https://badges.crowdin.net/jupyterlab/localized.svg)](https://crowdin.com/project/jupyterlab)
 [![GitHub](https://img.shields.io/badge/issue_tracking-github-blue.svg)](https://github.com/jupyterlab/jupyterlab/issues)
 [![Discourse](https://img.shields.io/badge/help_forum-discourse-blue.svg)](https://discourse.jupyter.org/c/jupyterlab)
 [![Gitter](https://img.shields.io/badge/social_chat-gitter-blue.svg)](https://gitter.im/jupyterlab/jupyterlab)
+[![Gitpod](https://img.shields.io/badge/gitpod_editor-open-blue.svg)](https://gitpod.io/#https://github.com/jupyterlab/jupyterlab)
 
-[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/5a5eb6b?urlpath=lab/tree/demo)
-
-[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/jupyterlab/jupyterlab)
+[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/75ab1750f37b27db8e135c2c4f2139da6b641609?urlpath=lab/tree/demo)
 
 An extensible environment for interactive and reproducible computing, based on the
-Jupyter Notebook and Architecture. [Currently ready for users.](https://blog.jupyter.org/jupyterlab-is-ready-for-users-5a6f039b8906)
+Jupyter Notebook and Architecture.
 
 [JupyterLab](http://jupyterlab.readthedocs.io/en/stable/) is the next-generation user interface for [Project Jupyter](https://jupyter.org) offering
 all the familiar building blocks of the classic Jupyter Notebook (notebook,
 terminal, text editor, file browser, rich outputs, etc.) in a flexible and
 powerful user interface.
-JupyterLab will eventually replace the classic Jupyter Notebook.
 
 JupyterLab can be extended using [npm](https://www.npmjs.com/) packages
 that use our public APIs. The _prebuilt_ extensions can be distributed
@@ -36,52 +34,37 @@ via [PyPI](https://pypi.org/search/?q=jupyterlab&o=-created&c=Framework+%3A%3A+J
 conda, and other package managers. The _source_ extensions can be installed
 directly from npm (search for [jupyterlab-extension](https://www.npmjs.com/search?q=keywords:jupyterlab-extension)) but require an additional build step.
 You can also find JupyterLab extensions exploring GitHub topic [jupyterlab-extension](https://github.com/topics/jupyterlab-extension).
-To learn more about extensions, see the [user documentation](https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html).
-
-The current JupyterLab releases are suitable for general
-usage, and the extension APIs will continue to
-evolve for JupyterLab extension developers.
+To learn more about extensions, see the [user documentation](https://jupyterlab.readthedocs.io/en/stable/user/extensions.html).
 
 Read the current JupyterLab documentation on [ReadTheDocs](http://jupyterlab.readthedocs.io/en/stable/).
 
-______________________________________________________________________
+---
 
 ## Getting started
 
 ### Installation
 
-JupyterLab can be installed using [conda](https://docs.conda.io/en/latest/), [mamba](https://mamba.readthedocs.io/en/latest/) or [pip](https://docs.python.org/3.6/installing/index.html). For more detailed instructions, consult the [installation guide](http://jupyterlab.readthedocs.io/en/3.6.x/getting_started/installation.html).
-
-Project installation instructions from the git sources are available in the [contributor documentation](CONTRIBUTING.md).
-
-### mamba and conda
-
-If you use `mamba` or `conda`, you can install it with:
-
-```shell
-mamba install -c conda-forge jupyterlab
-```
-
-or
-
-```shell
-conda install -c conda-forge jupyterlab
-```
+If you use [conda](https://docs.conda.io/en/latest/), [mamba](https://mamba.readthedocs.io/en/latest/), or [pip](https://docs.python.org/3/installing/index.html), you can install JupyterLab with one of the following commands.
 
-### pip
+- If you use conda:
+  ```shell
+  conda install -c conda-forge jupyterlab
+  ```
+- If you use mamba:
+  ```shell
+  mamba install -c conda-forge jupyterlab
+  ```
+- If you use pip:
+  ```shell
+  pip install jupyterlab
+  ```
+  If installing using `pip install --user`, you must add the user-level `bin` directory to your `PATH` environment variable in order to launch `jupyter lab`. If you are using a Unix derivative (e.g., FreeBSD, GNU/Linux, macOS), you can do this by running `export PATH="$HOME/.local/bin:$PATH"`. If you are using a macOS version that comes with Python 2, run `pip3` instead of `pip`.
 
-If you use `pip`, you can install it with:
-
-```shell
-pip install jupyterlab
-```
-
-If installing using `pip install --user`, you must add the user-level `bin` directory to your `PATH` environment variable in order to launch `jupyter lab`. If you are using a Unix derivative (e.g., FreeBSD, GNU/Linux, macOS), you can do this by running `export PATH="$HOME/.local/bin:$PATH"`. If you are using a macOS version that comes with Python 2, run `pip3` instead of `pip`.
+For more detailed instructions, consult the [installation guide](http://jupyterlab.readthedocs.io/en/stable/getting_started/installation.html). Project installation instructions from the git sources are available in the [contributor documentation](CONTRIBUTING.md).
 
 #### Installing with Previous Versions of Jupyter Notebook
 
-When using a version of Jupyter Notebook earlier than 5.3, the following command must be run
-after installation to enable the JupyterLab server extension:
+When using a version of Jupyter Notebook earlier than 5.3, the following command must be run after installing JupyterLab to enable the JupyterLab server extension:
 
 ```bash
 jupyter serverextension enable --py jupyterlab --sys-prefix
@@ -95,7 +78,7 @@ Start up JupyterLab using:
 jupyter lab
 ```
 
-JupyterLab will open automatically in the browser. See the [documentation](http://jupyterlab.readthedocs.io/en/3.6.x/getting_started/starting.html) for additional details.
+JupyterLab will open automatically in the browser. See the [documentation](http://jupyterlab.readthedocs.io/en/stable/getting_started/starting.html) for additional details.
 
 If you encounter an error like "Command 'jupyter' not found", please make sure `PATH` environment variable is set correctly. Alternatively, you can start up JupyterLab using `~/.local/bin/jupyter lab` without changing the `PATH` environment variable.
 
@@ -107,9 +90,9 @@ The latest versions of the following browsers are currently _known to work_:
 - Chrome
 - Safari
 
-See our [documentation](http://jupyterlab.readthedocs.io/en/3.6.x/getting_started/installation.html) for additional details.
+See our [documentation](http://jupyterlab.readthedocs.io/en/stable/getting_started/installation.html) for additional details.
 
-______________________________________________________________________
+---
 
 ## Getting help
 
@@ -117,30 +100,30 @@ We encourage you to ask questions on the [Discourse forum](https://discourse.jup
 
 ### Bug report
 
-To report a bug please read the [guidelines](https://jupyterlab.readthedocs.io/en/3.6.x/getting_started/issue.html) and then open a [Github issue](https://github.com/jupyterlab/jupyterlab/issues/new?labels=bug%2C+status%3ANeeds+Triage&template=bug_report.md). To keep resolved issues self-contained, the [lock bot](https://github.com/apps/lock) will lock closed issues as resolved after a period of inactivity. If a related discussion is still needed after an issue is locked, please open a new issue and reference the old issue.
+To report a bug please read the [guidelines](https://jupyterlab.readthedocs.io/en/stable/getting_started/issue.html) and then open a [Github issue](https://github.com/jupyterlab/jupyterlab/issues/new?labels=bug%2C+status%3ANeeds+Triage&template=bug_report.md). To keep resolved issues self-contained, the [lock bot](https://github.com/apps/lock) will lock closed issues as resolved after a period of inactivity. If a related discussion is still needed after an issue is locked, please open a new issue and reference the old issue.
 
 ### Feature request
 
-We also welcome suggestions for new features as they help make the project more useful for everyone. To request a feature please use the [feature request template](https://github.com/jupyterlab/jupyterlab/issues/new?template=feature_request.md).
+We also welcome suggestions for new features as they help make the project more useful for everyone. To request a feature please use the [feature request template](https://github.com/jupyterlab/jupyterlab/issues/new?labels=enhancement%2C+status%3ANeeds+Triage&template=feature_request.md).
 
-______________________________________________________________________
+---
 
 ## Development
 
 ### Extending JupyterLab
 
-To start developing an extension for JupyterLab, see the [developer documentation](https://jupyterlab.readthedocs.io/en/3.6.x/extension/extension_dev.html) and the [API docs](https://jupyterlab.readthedocs.io/en/3.6.x/api/).
+To start developing an extension for JupyterLab, see the [developer documentation](https://jupyterlab.readthedocs.io/en/stable/extension/extension_dev.html) and the [API docs](https://jupyterlab.readthedocs.io/en/stable/api/).
 
 ### Contributing
 
-To contribute code or documentation to JupyterLab itself, please read the [contributor documentation](https://jupyterlab.readthedocs.io/en/3.6.x/developer/contributing.html).
+To contribute code or documentation to JupyterLab itself, please read the [contributor documentation](https://jupyterlab.readthedocs.io/en/stable/developer/contributing.html).
 
 JupyterLab follows the Jupyter [Community Guides](https://jupyter.readthedocs.io/en/latest/community/content-community.html).
 
 ### License
 
 JupyterLab uses a shared copyright model that enables all contributors to maintain the
-copyright on their contributions. All code is licensed under the terms of the revised [BSD license](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/LICENSE).
+copyright on their contributions. All code is licensed under the terms of the revised [BSD license](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/LICENSE).
 
 ### Team
 
@@ -148,23 +131,23 @@ JupyterLab is part of [Project Jupyter](http://jupyter.org/) and is developed by
 
 JupyterLab's current maintainers are listed in alphabetical order, with affiliation, and main areas of contribution:
 
-- Mehmet Bektas, Splunk (general development, extensions).
+- Mehmet Bektas, Netflix (general development, extensions).
 - Alex Bozarth, IBM (general development, extensions).
 - Eric Charles, Datalayer, (general development, extensions).
 - Frédéric Collonval, QuantStack (general development, extensions).
 - Martha Cryan, IBM (general development, extensions).
-- Afshin Darian, Two Sigma (co-creator, application/high-level architecture,
+- Afshin Darian, QuantStack (co-creator, application/high-level architecture,
   prolific contributions throughout the code base).
 - Vidar T. Fauske, JPMorgan Chase (general development, extensions).
 - Brian Granger, AWS (co-creator, strategy, vision, management, UI/UX design,
   architecture).
-- Jason Grout, Bloomberg (co-creator, vision, general development).
+- Jason Grout, Databricks (co-creator, vision, general development).
 - Michał Krassowski, University of Oxford (general development, extensions).
 - Max Klein, JPMorgan Chase (UI Package, build system, general development, extensions).
 - Gonzalo Peña-Castellanos, QuanSight (general development, i18n, extensions).
 - Fernando Perez, UC Berkeley (co-creator, vision).
 - Isabela Presedo-Floyd, QuanSight Labs (design/UX).
-- Steven Silvester, Apple (co-creator, release management, packaging,
+- Steven Silvester, MongoDB (co-creator, release management, packaging,
   prolific contributions throughout the code base).
 - Jeremy Tuloup, QuantStack (general development, extensions).
 
@@ -182,7 +165,7 @@ Maintainer emeritus:
 This list is provided to give the reader context on who we are and how our team functions.
 To be listed, please submit a pull request with your information.
 
-______________________________________________________________________
+---
 
 ### Weekly Dev Meeting
 
@@ -190,6 +173,8 @@ We have videoconference meetings every week where we discuss what we have been w
 
 Anyone is welcome to attend, if they would like to discuss a topic or just listen in.
 
-- When: Wednesdays [9AM Pacific Time](https://www.thetimezoneconverter.com/?t=9%3A00%20am&tz=San%20Francisco&)
+- When: Wednesdays [9:00 AM Pacific Time (USA)](https://www.thetimezoneconverter.com/?t=9%3A00%20am&tz=San%20Francisco&)
 - Where: [`jovyan` Zoom](https://zoom.us/my/jovyan?pwd=c0JZTHlNdS9Sek9vdzR3aTJ4SzFTQT09)
 - What: [Meeting notes](https://hackmd.io/Y7fBMQPSQ1C08SDGI-fwtg?both)
+
+> Notes are archived on [GitHub JupyterLab team compass](https://github.com/jupyterlab/team-compass/issues).
diff --git a/RELEASE.md b/RELEASE.md
index 905a15f7a92e..4688b471cf70 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -2,10 +2,138 @@
 
 This document guides a contributor through creating a release of JupyterLab.
 
+## The JupyterLab Release Process
+
+JupyterLab follows [semver](https://semver.org/) for the versioning of the Python and JavaScript packages.
+
+### Release Timeline
+
+Although the commitments listed below are "best effort", the JupyterLab team tries to follow a couple of guidelines:
+
+- one major version per year, which usually includes API breaking changes
+- several minor versions per year that include new features but no API breaking changes
+- support and bug fixes on a couple of final releases (by backporting PRs and releasing from release branches)
+
+Release Plans are tracked in dedicated issues, and are closed when the final release. See the following two issues as an example:
+
+- [3.3 Release Plan](https://github.com/jupyterlab/jupyterlab/issues/11643)
+- [4.0 Release Plan](https://github.com/jupyterlab/jupyterlab/issues/9647)
+
+### Alpha Releases
+
+Alpha releases have a fairly low bar. Their purpose is to start putting the new JupyterLab version into the hands of users and extension authors.
+
+The requirements for an alpha release should be that JupyterLab can be installed and run. Bugs and breaking changes are accepted.
+
+### Beta Releases
+
+Beta releases usually try to not have breaking changes in the API, although breaking changes can sometimes happen during that phase if they were missed during the alpha stage.
+
+The recommended time period for the Beta phase is a minimum of 2 weeks.
+
+The draft changelog describing user-facing changes will be published with the first Beta release.
+
+The community of extension developers and active users will be invited to commence testing the new Beta release including the draft user-facing changelog, and an invitation to open issues for any major:
+
+- regressions,
+- usability problems
+- points needing clarification (or inclusion) in the changelog, and
+- points needing clarification in the extension porting guide.
+
+The start of the Beta-testing period will be announced on Jupyter mailing group and Jupyter Discourse for major releases, and only via a Discourse post for minor releases.
+
+All bug reports raised during the Beta-testing period should be triaged (but not necessarily addressed) before releasing the first release candidate.
+
+### Release Candidates
+
+Release Candidates (RC) are a signal to the extension developer community that they should start migrating to the new version to test it. At that point we consider the software stable.
+
+The RC stage is often a good time to address final release documentation changes or minor UX tweaks. During the RC phase, the JupyterLab developers and maintainers start updating third-party extensions over to the new version to test it. This work during the RC phase, and giving time for feedback from extension developers, can take up to a couple of weeks.
+
+The recommended time period for the Release Candidate phase is a minimum of 1 week for minor releases, and 2 weeks for major releases.
+
+## Automated Releases with the Jupyter Releaser
+
+The recommended way to make a release is to use [`jupyter_releaser`](https://jupyter-releaser.readthedocs.io/en/latest/how_to_guides/convert_repo_from_repo.html).
+
+### Workflow
+
+The full process is documented in https://jupyter-releaser.readthedocs.io/en/latest/get_started/making_release_from_repo.html. There is a recording of the full workflow on [YouTube](https://youtu.be/cdRvvyZvYKM).
+
+Here is a quick summary of the different steps.
+
+#### Communicate on Gitter
+
+It is good practice to let other maintainers and users know when starting a new release.
+
+For this we usually leave a small message in the `jupyterlab` room on Gitter: https://gitter.im/jupyterlab/jupyterlab.
+Once the release is done, we also post a message with a link to the release notes, which include the changelog.
+
+#### 1. Prep Release
+
+The first step is to generate a new changelog entry for the upcoming release.
+
+We use the "Prep Release" workflow as documented here: https://jupyter-releaser.readthedocs.io/en/latest/get_started/making_release_from_repo.html#prep-release
+
+Go the Actions tab of the JupyterLab Repo and click on the `1. Prep Release` workflow: https://github.com/jupyterlab/jupyterlab/actions
+
+The workflow takes a couple of input parameters. Here is an overview with example values:
+
+| Input        | Description                                             | Example Value           |
+| ------------ | ------------------------------------------------------- | ----------------------- |
+| Target       | The owner/repo GitHub target                            | `jupyterlab/jupyterlab` |
+| Branch       | The branch to target                                    | `main`                  |
+| Version Spec | New Version Spec                                        | `next`                  |
+| Since        | Use PRs since activity since this date or git reference | `v4.0.0a15`             |
+
+The version spec follows the specification documented below in the [Bump Version](#bump-version) section.
+
+We can use `next` when making a `patch` release or a `build` pre-release.
+
+Click on "Run workflow", then once completed:
+
+1. Go to the Releases: https://github.com/jupyterlab/jupyterlab/releases
+1. Check the draft GitHub Release has been created
+1. Make edits to the changelog if needed. ⚠️ If you make edits to the content of the GitHub Release, then don't forget to click on "Save Draft" and not "Publish Release".
+
+### 2. Publish Release
+
+#### PyPI and npm tokens
+
+Before running the "Publish Release" workflow, make sure you have been added to:
+
+- the `jupyterlab` project on PyPI: https://pypi.org/project/jupyterlab/
+- the `@jupyterlab` organization on npm: https://www.npmjs.com/settings/jupyterlab/packages
+
+Then create the PyPI and npm tokens. Check out the links in the [Jupyter Releaser Setup Documentation](https://jupyter-releaser.readthedocs.io/en/stable/get_started/making_release_from_releaser.html#set-up) for more information.
+
+#### Running the workflow
+
+On the [Actions](https://github.com/jupyterlab/jupyterlab/actions) page, select the "2. Publish Release" workflow.
+
+Fill in the information as mentioned in the body of the changelog PR, for example:
+
+| Input                                 | Value |
+| ------------------------------------- | ----- |
+| The target branch                     | main  |
+| The URL of the draft GitHub release   |       |
+| Comma separated list of steps to skip |       |
+
+The "Publish Release" workflow:
+
+- builds and uploads the `jupyterlab` Python package to PyPI
+- builds the `@jupyterlab/*` packages and uploads them to `npm`
+- creates a new GitHub Release with the new changelog entry as release notes
+- creates a PR to forward port the new changelog entry to the main branch (when releasing from a branch that is not the default)
+
+Then follow the [Post release candidate checklist](#post-release-candidate-checklist) if applicable.
+
+## Manual Release Process
+
 Review `CONTRIBUTING.md`. Make sure all the tools needed to generate the
 built JavaScript files are properly installed.
 
-## Creating a full release
+### Creating a full release
 
 We publish the npm packages, a Python source package, and a Python universal
 binary wheel. We also publish a conda package on conda-forge (see below). See
@@ -13,7 +141,7 @@ the Python docs on [package
 uploading](https://packaging.python.org/guides/tool-recommendations/) for twine
 setup instructions and for why twine is the recommended method.
 
-## Getting a clean environment
+### Getting a clean environment
 
 For convenience, here is a script for getting a completely clean repo. This
 makes sure that we don't have any extra tags or commits in our repo (especially
@@ -26,7 +154,7 @@ Make sure you are running an sh-compatible shell, and it is set up to be able to
 source scripts/release_prep.sh <branch_name>
 ```
 
-## Bump version
+### Bump version
 
 The next step is to bump the appropriate version numbers. We use
 [bump2version](https://github.com/c4urself/bump2version) to manage the Python
@@ -37,23 +165,21 @@ Choose and run an appropriate command to bump version numbers for this release.
 
 | Command                    | Python Version Change | NPM Version change                 |
 | -------------------------- | --------------------- | ---------------------------------- |
-| `jlpm bumpversion minor`   | x.y.z-> x.(y+1).0.a0  | All a.b.c -> a.(b+10).0-alpha.0    |
+| `jlpm bumpversion major`   | x.y.z-> (x+1).0.0.a0  | All a.b.c -> a.(b+10).0-alpha.0    |
+| `jlpm bumpversion minor`   | x.y.z-> x.(y+1).0.a0  | All a.b.c -> a.(b+1).0-alpha.0     |
 | `jlpm bumpversion build`   | x.y.z.a0-> x.y.z.a1   | All a.b.c-alpha.0 -> a.b.c-alpha.1 |
 | `jlpm bumpversion release` | x.y.z.a1-> x.y.z.b0   | All a.b.c-alpha.1 -> a.b.c-beta.0  |
-| `jlpm bumpversion release` | x.y.z.a1-> x.y.z.rc0  | All a.b.c-alpha.1 -> a.b.c-rc.0    |
+| `jlpm bumpversion release` | x.y.z.b1-> x.y.z.rc0  | All a.b.c-beta.1 -> a.b.c-rc.0     |
 | `jlpm bumpversion release` | x.y.z.rc0-> x.y.z     | All a.b.c-rc0 -> a.b.c             |
 | `jlpm bumpversion patch`   | x.y.z -> x.y.(z+1)    | Changed a.b.c -> a.b.(c+1)         |
 
-Note: For a minor release, we bump the JS packages by 10 versions so that
+Note: For a major release, we bump the JS packages by 10 versions so that
 we are not competing amongst the minor releases for version numbers.
 We are essentially sub-dividing semver to allow us to bump minor versions
 of the JS packages as many times as we need to for minor releases of the
 top level JupyterLab application.
 
-Other note: It's ok if `yarn-deduplicate` exits with a non zero code. This is
-expected!
-
-### JS major release(s)
+#### JS major release(s)
 
 In a major Python release, we can have one or more JavaScript packages also have
 a major bump. During the prerelease stage of a major release, if there is a
@@ -62,6 +188,8 @@ that JS package:
 
 `jlpm bump:js:major [...packages]`
 
+**NOTE** You should rebase before running `jlpm bump:js:major` to avoid a cascade of merge conflicts.
+
 Results:
 
 - Python package is not affected.
@@ -69,7 +197,7 @@ Results:
 - Packages that have already had a major bump in this prerelease cycle are not affected.
 - All affected packages changed to match the current release type of the Python package (`alpha`, `beta`, or `rc`).
 
-## Publishing Packages
+### Publishing Packages
 
 Now publish the JS packages
 
@@ -101,7 +229,7 @@ from ipywidgets import IntSlider
 IntSlider()
 ```
 
-## Finish
+### Finish
 
 Follow instructions printed at the end of the publish step above:
 
@@ -117,50 +245,47 @@ These lines:
 
 ## Post release candidate checklist
 
-- \[ \] Modify and run `python scripts/milestone_check.py` to check the issues assigned to this milestone
-- \[ \] Write [release highlights](CHANGELOG.md), starting with:
+- [ ] Modify and run `python scripts/milestone_check.py` to check the issues assigned to this milestone
+- [ ] Write [release highlights](CHANGELOG.md), starting with:
   ```bash
   loghub jupyterlab/jupyterlab -m XXX -t $GITHUB_TOKEN --template scripts/release_template.txt
   ```
-- \[ \] Test the release candidate in a clean environment
-- \[ \] Make sure the CI builds pass
+- [ ] Test the release candidate in a clean environment
+- [ ] Make sure the CI builds pass
   - The build will fail if we publish a new package because by default it is
     private. Use `npm access public @jupyterlab/<name>` to make it public.
   - The build will fail if we forget to include `style/` in the `files:`
     of a package (it will fail on the `jupyter lab build` command because
     webpack cannot find the referenced styles to import.
-- \[ \] Update the other repos:
-  - \[ \] https://github.com/jupyterlab/extension-cookiecutter-js
-  - \[ \] https://github.com/jupyterlab/extension-cookiecutter-ts
-  - \[ \] https://github.com/jupyterlab/mimerender-cookiecutter
-  - \[ \] https://github.com/jupyterlab/mimerender-cookiecutter-ts
-  - \[ \] https://github.com/jupyterlab/theme-cookiecutter
-  - \[ \] https://github.com/jupyterlab/jupyter-renderers
-- \[ \] Add a tag to [ts cookiecutter](https://github.com/jupyterlab/extension-cookiecutter-ts) with the new JupyterLab version
-- \[ \] Update the extension examples:
-  - \[ \] [Notebook toolbar button](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/docs/source/extension/notebook.rst#adding-a-button-to-the-toolbar)
-- \[ \] Update the [extension tutorial](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/RELEASE.md#updating-the-extension-tutorial)
-- \[ \] At this point, there may have been some more commits merged. Run `python scripts/milestone_check.py` to check the issues assigned to this milestone one more time. Update changelog if necessary.
+- [ ] Update the other repos:
+  - [ ] https://github.com/jupyterlab/extension-template
+  - [ ] https://github.com/jupyterlab/jupyter-renderers
+- [ ] Publish a release (with a **updated tag**) to the [extension template](https://github.com/jupyterlab/extension-template/releases) with the new JupyterLab version
+- [ ] Update the extension examples:
+  - [ ] [Notebook toolbar button](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/docs/source/extension/notebook.rst#adding-a-button-to-the-toolbar)
+  - [ ] [Notebook widget](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/docs/source/extension/notebook.rst#adding-a-widget-to-the-notebook-header)
+- [ ] Update the [extension tutorial](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/RELEASE.md#updating-the-extension-tutorial)
+- [ ] At this point, there may have been some more commits merged. Run `python scripts/milestone_check.py` to check the issues assigned to this milestone one more time. Update changelog if necessary.
 
 Now do the actual final release:
 
-- \[ \] Run `jlpm run bumpversion release` to switch to final release
-- \[ \] Push the commit and tags to master
-- \[ \] Run `npm run publish:all` to publish the packages
-- \[ \] Create a branch for the release and push to GitHub
-- \[ \] Update the API [docs](#updating-api-docs)
-- \[ \] Merge the PRs on the other repos and set the default branch of the
-  xckd repo
-- \[ \] Publish to [conda-forge](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/RELEASE.md#publishing-to-conda-forge).
+- [ ] Run `jlpm run bumpversion release` to switch to final release
+- [ ] Push the commit and tags to main
+- [ ] Run `npm run publish:all` to publish the packages
+- [ ] Create a branch for the release and push to GitHub
+- [ ] Update the API [docs](#updating-api-docs)
+- [ ] Merge the PRs on the other repos and set the default branch of the
+      xckd repo
+- [ ] Publish to [conda-forge](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/RELEASE.md#publishing-to-conda-forge).
 
 After a few days (to allow for possible patch releases), set up development for
 the next release:
 
-- \[ \] Run `jlpm run bumpversion minor` to bump to alpha for the next alpha release
-- \[ \] Put the commit and tags to master
-- \[ \] Run `npm run publish:all` to publish the packages
-- \[ \] Release the other repos as appropriate
-- \[ \] Update version for [binder](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/RELEASE.md#update-version-for-binder)
+- [ ] Run `jlpm run bumpversion minor` to bump to alpha for the next alpha release
+- [ ] Put the commit and tags to main
+- [ ] Run `npm run publish:all` to publish the packages
+- [ ] Release the other repos as appropriate
+- [ ] Update version for [binder](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/RELEASE.md#update-version-for-binder)
 
 ### Updating the extension tutorial
 
@@ -182,6 +307,15 @@ git checkout -b BRANCH # whatever the new version is, e.g., 1.0
 git rebase -i --root
 ```
 
+To seed the latest version of the extension template (first commit), you
+can execute (assuming you are editing the first commit):
+
+```sh
+copier copy --UNSAFE https://github.com/jupyterlab/extension-template .
+# Fix any conflicts
+git commit --amend '-S'
+```
+
 "Edit" the commits that involve installing packages, so you can update the
 `package.json`. Amend the last commit to bump the version number in package.json
 in preparation for publishing to npm. Then skip down to the step below about
@@ -196,10 +330,7 @@ updating package versions, then do the next steps instead.
 git checkout --orphan name-of-branch
 git rm -rf .
 git clean -dfx
-cookiecutter -o initial path-to-local-extension-cookiecutter-ts
-# Fill in the values from the previous branch package.json initial commit
-cp -r initial/jupyterlab_apod .
-rm -rf initial
+copier copy --UNSAFE https://github.com/jupyterlab/extension-template .
 ```
 
 - Create a new PR in JupyterLab.
@@ -211,21 +342,21 @@ rm -rf initial
 
 #### Publishing extension tutorial changes
 
-- Tag commits in the branch with the appropriate `branch-step` tag. If you are at the final commit, you can tag all commits with the below, replacing `BRANCH` with the branch name (e.g., `1.0-01-show-a-panel`) \`\`\`bash
-  git tag BRANCH-01-show-a-panel HEAD~4
-  git tag BRANCH-02-show-an-image HEAD~3
-  git tag BRANCH-03-style-and-attribute HEAD~2
-  git tag BRANCH-04-refactor-and-refresh HEAD~1
-  git tag BRANCH-05-restore-panel-state HEAD
-
-  ```
+- Tag commits in the branch with the appropriate `branch-step` tag. If you are at the final commit, you can tag all commits with the below, setting `BRANCH` with the branch name (e.g., `1.0-01-show-a-panel`)
 
+  ```bash
+  export BRANCH=<branch-name>
+  git tag ${BRANCH}-01-show-a-panel HEAD~4
+  git tag ${BRANCH}-02-show-an-image HEAD~3
+  git tag ${BRANCH}-03-style-and-attribute HEAD~2
+  git tag ${BRANCH}-04-refactor-and-refresh HEAD~1
+  git tag ${BRANCH}-05-restore-panel-state HEAD
   ```
 
 - Push the branch with the new tags
 
   ```bash
-  git push origin BRANCH --tags
+  git push origin ${BRANCH} --tags
   ```
 
   Set the branch as the default branch (see `github.com/jupyterlab/jupyterlab_apod/settings/branches`).
@@ -240,10 +371,10 @@ rm -rf initial
   ```
 
 If you make a mistake and need to start over, clear the tags using the
-following pattern (replacing `BRANCH` with the branch name):
+following pattern:
 
 ```bash
-git tag | grep BRANCH | xargs git tag -d
+git tag | grep ${BRANCH} | xargs git tag -d
 ```
 
 ### Publishing to conda-forge
@@ -258,9 +389,9 @@ shasum -a 256 dist/*.tar.gz
 
 - Fork https://github.com/conda-forge/jupyterlab-feedstock
 - Create a PR with the version bump
-- Update `recipe/meta.yaml` with the new version and md5 and reset the build number to 0.
+- Update `recipe/meta.yaml` with the new version and sha256 and reset the build number to 0.
 
-## Making a patch release
+## Making a manual patch release
 
 - Backport the change to the previous release branch
 - Run the following script, where the package is in `/packages/package-folder-name` (note that multiple packages can be given, or no packages for a Python-only patch release):
@@ -281,3 +412,68 @@ https://github.com/jupyter/repo2docker/pull/169/files
 
 This needs to be done in both the conda and pip buildpacks in both the
 frozen and non-frozen version of the files.
+
+## Making a Minor Release
+
+### Planning
+
+- Create a pinned issue
+- Create a milestone
+- Decide on a scope for the release and set a target final release date
+
+## Alpha and Beta Phase
+
+- Create a new branch from the previous release branch
+- Use a ".x" in the branch name so we can continue to use it for patches
+- Update branch and RTD config in `ensure_repo.ts` and run `jlpm integrity` to update links - source should be the previous release branch
+- Update readthedocs branch config as appropriate
+- Automated Release using "minor" - edit changelog for new section
+- Move through alpha and beta phases as appropriate
+
+### RC Phase
+
+- Roll up the release notes using the "Use PRs with activity since the last stable git tag" option when running the workflows
+- Update the release issue with an updated date
+
+### Final Release
+
+- Roll up the release notes using the "Use PRs with activity since the last stable git tag" option when running the workflows
+- Close the release issue
+- Rename milestone to use ".x"
+- Make an announcement on Discourse
+
+## Making a Major Release
+
+### Planning
+
+- Create a pinned issue
+- Create a milestone
+- Decide on a scope for the release and set a target final release date
+
+### Alpha and Beta Phase
+
+- Update branch and RTD config in `ensure_repo.ts` and `jlpm integrity` to update links - source should be the previous branch
+- Update readthedocs branch config as appropriate
+- Automated Release using "major" - edit changelog for new section
+- Move through alpha and beta phases as appropriate
+
+### RC Phase
+
+- Roll up the release notes using the "Use PRs with activity since the last stable git tag" option when running the workflows
+- Create a new branch from the default branch with ".x" in the name so we can continue to use it for patches
+- Update the release issue with an updated date
+
+### Final Release
+
+- Roll up the release notes using the "Use PRs with activity since the last stable git tag" option when running the workflows
+- Close the release issue and rename milestone to use ".x"
+- Make an announcement on Discourse
+- Make a blog post
+
+## Postmortems
+
+Here is a list of previous issues that happened while releasing JupyterLab, that can be used as reference in case
+new issues show up in the future:
+
+- HTTP Error 502: Bad Gateway (JupyterLab `4.0.0a23`): https://github.com/jupyterlab/jupyterlab/issues/12324
+- Degraded performance of npm publish (JupyterLab `4.0.0b2`): https://github.com/jupyterlab/jupyterlab/issues/14431
diff --git a/binder/README.md b/binder/README.md
index b40415f436e5..81a7a5e61628 100644
--- a/binder/README.md
+++ b/binder/README.md
@@ -1,16 +1,32 @@
-This directory holds configuration files for https://mybinder.org/.
+This directory holds configuration files for a development-focused
+[Binder](https://mybinder.org).
 
-A Binder instance can be launched by visiting this URL:
+> For a more user-focused Binder use this URL:
+>
+> https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/master?urlpath=lab/tree/demo/Lorenz.ipynb
 
-https://mybinder.org/v2/gh/jupyterlab/jupyterlab/master?urlpath=lab
+A personal Binder instance can be launched by visiting this URL:
 
-To check out a different version, just replace "master" with the desired
-branch/tag name or commit hash.
+    https://mybinder.org/v2/gh/jupyterlab/jupyterlab/HEAD?urlpath=lab
 
-If there is an error with the launched application, you can look at
-`~/jupyterlab-dev.log` in a terminal to see the log.
+To check out a different version, replace `HEAD` with the desired
+branch, tag name, or commit hash.
 
-Please note that this setup is developer focused.
-For a more user-focused Binder use this URL:
+## Reports
 
-https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/master?urlpath=lab/tree/demo/Lorenz.ipynb
+Once it launches, a number of reports are generated in `_reports_` which detail
+aspects of development:
+
+- packages installed
+- the duration and complexity of the `nodejs` and `python` package build process
+- `jupyter_server` configuration information
+- the final size of the as-built JS/CSS assets
+
+## Server Log
+
+Note that the log of the running application is also available, and can be
+observed from a _Terminal_ with the command:
+
+```bash
+tail -f .jupyter-server-log.txt
+```
diff --git a/binder/environment.yml b/binder/environment.yml
index 8b9002c7e965..d3549cdb430d 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -1,13 +1,65 @@
-name: example-environment
+name: jupyterlab-dev
+
 channels:
   - conda-forge
+  - nodefaults
+
 dependencies:
-  - jupyterlab-link-share=0.2
+  # runtimes
+  - nodejs >=18,<19
+  - python =3.11
+  # package managers
+  - pip
+  - yarn >=3,<4
+  # build
+  - hatch-jupyter-builder >=0.3.2
+  - hatchling >=1.5.0
+  # run
+  - async-lru >=1.0.0
+  - ipykernel
+  - jinja2 >=3.0.3
+  - jupyter_core
+  - jupyter_server >=2.4.0,<3
+  - jupyter-lsp >=2.0.0
+  - jupyterlab_server >=2.19.0,<3
+  - notebook-shim >=0.2
+  - packaging
+  - tornado >=6.2.0
+  - traitlets >=5.10.1
+  # test
+  - coverage
+  - pytest >=7.0
+  - pytest-check-links >=0.7
+  - pytest-console-scripts
+  - pytest-cov
+  - pytest-jupyter-server >=0.5.3
+  - pytest-timeout
+  - pytest-tornasync
+  - requests
+  - requests-cache
+  - virtualenv
+  # dev
+  - black-jupyter
+  - bump2version
+  - hatch
+  - pre-commit
+  - pytest-cov
+  - python-build
+  - ruff
+  # demo
   - jupyter-server-proxy
   - matplotlib-base
-  - nodejs=14
+  - notebook >=7.0.4
   - numpy
-  - pip
-  - python=3.8
   - vega_datasets
   - xeus-python
+  # extra conda stuff
+  - jsonschema-with-format-nongpl
+  # jupyter-collaboration 1.2.0
+  - jupyter_ydoc >=1.0.1,<2.0.0
+  - ypy-websocket >=0.12.1,<0.13.0
+  - jupyter_events >=0.7.0
+  - jupyter_server_fileid >=0.7.0,<1
+  - pip:
+    # can't be installed with `conda` in binder, due to `jupyterlab-link-share``
+    - jupyter-collaboration ==1.2.0
diff --git a/binder/jupyter_notebook_config.py b/binder/jupyter_config.py
similarity index 70%
rename from binder/jupyter_notebook_config.py
rename to binder/jupyter_config.py
index 01d93235330b..ec1024a235fb 100644
--- a/binder/jupyter_notebook_config.py
+++ b/binder/jupyter_config.py
@@ -1,3 +1,8 @@
+"""An INSECURE configuration for Jupyter Server, intended only for mybinder.org."""
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+import logging
+
 common = [
     "--no-browser",
     "--debug",
@@ -24,9 +29,9 @@
         "jupyter",
         "lab",
         "--ServerApp.base_url={base_url}lab-spliced",
+        *common,
+        ">jupyterlab-spliced.log 2>&1",
     ]
-    + common
-    + [">jupyterlab-spliced.log 2>&1"]
 )
 
 
@@ -38,6 +43,10 @@
     },
 }
 
-import logging
-
 c.ServerApp.log_level = logging.DEBUG
+
+c.LabApp.dev_mode = True
+c.LabApp.extensions_in_dev_mode = True
+c.LabApp.skip_dev_build = True
+
+c.ContentsManager.allow_hidden = True
diff --git a/binder/postBuild b/binder/postBuild
index e3a51c06479b..493cc57391b4 100755
--- a/binder/postBuild
+++ b/binder/postBuild
@@ -1,6 +1,42 @@
-#!/bin/bash
+#!/usr/bin/env bash
+
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
-set -euo pipefail
 
-pip install -e .[dev]
+# ensure no surprises from binder's "half" activation
+source activate ${NB_PYTHON_PREFIX}
+
+# use strict and verbose shell settings
+set -euxo pipefail
+
+# create log folder, named to appear at the top of the file browser
+mkdir _reports_
+
+# pre-install nodejs deps and build outside of editable python install
+(time yarn)                                            2>&1 | tee _reports_/00_yarn.txt
+(time yarn build:dev:prod:minimize:report)             2>&1 | tee _reports_/01_build.txt
+
+# hoist report to where a reviewer might see it
+mv dev_mode/static/webpack-bundle-analyzer.html _reports_/
+
+# overload best-effort versions from conda-forge for all deps
+(time pip install -v -e .[dev] --no-build-isolation)  2>&1 | tee _reports_/02_pip_install.txt
+
+# copy configuration to well-known location
+mkdir -p ~/.jupyter
+cp binder/jupyter_config.py ~/.jupyter/
+
+# capture configuration and debug information
+(time pip list)                                        2>&1 | tee _reports_/03_pip_list.txt
+(time pip check || echo FAIL)                          2>&1 | tee _reports_/04_pip_check.txt
+(time jupyter troubleshoot)                            2>&1 | tee _reports_/10_troubleshoot.txt
+(time jupyter notebook --show-config)                  2>&1 | tee _reports_/11_notebook_show_config.txt
+(time jupyter lab --show-config)                       2>&1 | tee _reports_/12_lab_show_config.txt
+(time jupyter server extension list)                   2>&1 | tee _reports_/13_server_extension_list.txt
+(time jupyter labextension list)                       2>&1 | tee _reports_/14_labextension_list.txt
+
+# clean up egregious wastes of space
+rm -rf \
+    ~/.cache \
+    dev_mode/stats.json \
+    node_modules/@stdlib
diff --git a/binder/start b/binder/start
deleted file mode 100755
index 7b1afad27ca9..000000000000
--- a/binder/start
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/usr/bin/env python3
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-import os
-import sys
-import shutil
-
-# using jupyter_notebook_config.py for now since Binder is still starting the
-# classic notebook server
-argv = sys.argv[1:] + [
-    "--debug",
-    "--dev-mode",
-    "--extensions-in-dev-mode",
-    "--collaborative",
-    "--ContentsManager.allow_hidden=True",
-    "--config",
-    "binder/jupyter_notebook_config.py",
-]
-print(argv)
-
-
-# Convert from jupyter-notebook based to jupyter-lab based start-up
-def nb2jps(s):
-    return s.replace("jupyter-notebook", "jupyter-lab").replace("--NotebookApp.", "--ServerApp.")
-
-
-new_argv = list(map(nb2jps, argv.copy()))
-print(new_argv)
-
-with open(".startup_args.txt", "w") as fid:
-    fid.write(str(new_argv))
-
-os.execv(shutil.which(new_argv[0]), new_argv)
diff --git a/buildapi.py b/buildapi.py
new file mode 100644
index 000000000000..d813e18f7e84
--- /dev/null
+++ b/buildapi.py
@@ -0,0 +1,38 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+# Custom build target that removes .js.map files for published
+# dist files.
+import glob
+import json
+import os
+import subprocess
+
+from hatch_jupyter_builder import npm_builder
+from packaging.version import Version
+
+
+def builder(target_name, version, *args, **kwargs):
+    # Allow building from sdist without node.
+    if target_name == "wheel" and not os.path.exists("dev_mode"):
+        return
+
+    npm_builder(target_name, version, *args, **kwargs)
+
+    if version == "editable":
+        return
+
+    files = glob.glob("jupyterlab/static/*.js.map")
+    for path in files:
+        os.remove(path)
+
+    target = glob.glob("jupyterlab/static/package.json")[0]
+    with open(target) as fid:
+        npm_version = json.load(fid)["jupyterlab"]["version"]
+
+    py_version = subprocess.check_output(["hatchling", "version"])  # noqa S603 S607
+    py_version = py_version.decode("utf-8").strip()
+
+    if Version(npm_version) != Version(py_version):
+        msg = "Version mismatch, please run `npm run prepare:python-release`"
+        raise ValueError(msg)
diff --git a/builder/package.json b/builder/package.json
index e7690f3a8c55..c3db9d6796ae 100644
--- a/builder/package.json
+++ b/builder/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/builder",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Extension Builder",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,58 +24,54 @@
     "metadata_schema.json",
     "lib/*.d.ts",
     "lib/*.js.map",
-    "lib/*.js"
+    "lib/*.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc",
-    "build:all": "npm run build",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/application": "^1.31.4",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "ajv": "^6.12.3",
-    "commander": "~6.0.0",
-    "css-loader": "^5.0.1",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/application": "^2.2.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "ajv": "^8.12.0",
+    "commander": "^9.4.1",
+    "css-loader": "^6.7.1",
     "duplicate-package-checker-webpack-plugin": "^3.0.0",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
     "license-webpack-plugin": "^2.3.14",
-    "mini-css-extract-plugin": "~1.3.2",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "path-browserify": "^1.0.0",
     "process": "^0.11.10",
-    "raw-loader": "~4.0.0",
     "source-map-loader": "~1.0.2",
-    "style-loader": "~2.0.0",
+    "style-loader": "~3.3.1",
     "supports-color": "^7.2.0",
-    "svg-url-loader": "~6.0.0",
-    "terser-webpack-plugin": "^4.1.0",
-    "to-string-loader": "^1.1.6",
-    "url-loader": "~4.1.0",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
-    "webpack-merge": "^5.1.2",
+    "terser-webpack-plugin": "^5.3.7",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
+    "webpack-merge": "^5.8.0",
     "worker-loader": "^3.0.2"
   },
   "devDependencies": {
     "@types/fs-extra": "^9.0.1",
     "@types/glob": "^7.1.1",
-    "@types/node": "^14.6.1",
+    "@types/node": "^18.11.18",
     "@types/supports-color": "^5.3.0",
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/builder/src/build-labextension.ts b/builder/src/build-labextension.ts
index b3ac22a59040..b346760b7f72 100644
--- a/builder/src/build-labextension.ts
+++ b/builder/src/build-labextension.ts
@@ -42,7 +42,7 @@
 ///////////////////////////////////////////////////////
 
 import * as path from 'path';
-import commander from 'commander';
+import { program as commander } from 'commander';
 import webpack from 'webpack';
 import generateConfig from './extensionConfig';
 import { stdout as colors } from 'supports-color';
@@ -57,26 +57,26 @@ commander
     'url for build assets, if hosted outside the built extension'
   )
   .option('--watch')
-  .action(async cmd => {
-    const mode = cmd.development ? 'development' : 'production';
-    const corePath = path.resolve(cmd.corePath || process.cwd());
-    const packagePath = path.resolve(cmd.args[0]);
-    const devtool = cmd.sourceMap ? 'source-map' : undefined;
+  .action(async (options, command) => {
+    const mode = options.development ? 'development' : 'production';
+    const corePath = path.resolve(options.corePath || process.cwd());
+    const packagePath = path.resolve(command.args[0]);
+    const devtool = options.sourceMap ? 'source-map' : undefined;
 
     const config = generateConfig({
       packagePath,
       mode,
       corePath,
-      staticUrl: cmd.staticUrl,
+      staticUrl: options.staticUrl,
       devtool,
-      watchMode: cmd.watch
+      watchMode: options.watch
     });
     const compiler = webpack(config);
 
     let lastHash: string | null = null;
 
     function compilerCallback(err: any, stats: any) {
-      if (!cmd.watch || err) {
+      if (!options.watch || err) {
         // Do not keep cache anymore
         compiler.purgeInputFileSystem();
       }
@@ -93,7 +93,7 @@ commander
 
       if (stats.hasErrors()) {
         console.error(info.errors);
-        if (!cmd.watch) {
+        if (!options.watch) {
           process.exit(2);
         }
       }
@@ -108,7 +108,7 @@ commander
       }
     }
 
-    if (cmd.watch) {
+    if (options.watch) {
       compiler.hooks.watchRun.tap('WebpackInfo', () => {
         console.error('\nWatch Compilation starting…\n');
       });
@@ -124,7 +124,7 @@ commander
       });
     }
 
-    if (cmd.watch) {
+    if (options.watch) {
       compiler.watch(config[0].watchOptions || {}, compilerCallback);
       console.error('\nwebpack is watching the files…\n');
     } else {
diff --git a/builder/src/build.ts b/builder/src/build.ts
index c58e4b207a31..23060c2d15f6 100644
--- a/builder/src/build.ts
+++ b/builder/src/build.ts
@@ -4,6 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 import MiniCssExtractPlugin from 'mini-css-extract-plugin';
+import miniSVGDataURI from 'mini-svg-data-uri';
 
 import * as webpack from 'webpack';
 import * as fs from 'fs-extra';
@@ -204,15 +205,18 @@ export namespace Build {
           rules: [
             {
               test: /\.css$/,
-              use: [MiniCssExtractPlugin.loader, 'css-loader']
+              use: [MiniCssExtractPlugin.loader, require.resolve('css-loader')]
             },
             {
               test: /\.svg/,
-              use: [{ loader: 'svg-url-loader', options: { encoding: 'none' } }]
+              type: 'asset/inline',
+              generator: {
+                dataUrl: (content: any) => miniSVGDataURI(content.toString())
+              }
             },
             {
               test: /\.(cur|png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-              use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+              type: 'asset'
             }
           ]
         },
diff --git a/builder/src/duplicate-package-checker-webpack-plugin.d.ts b/builder/src/duplicate-package-checker-webpack-plugin.d.ts
index 9eaae2491c69..897d28d7c8a2 100644
--- a/builder/src/duplicate-package-checker-webpack-plugin.d.ts
+++ b/builder/src/duplicate-package-checker-webpack-plugin.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 // Type definitions for duplicate-package-checker-webpack-plugin 2.1
 // Project: https://github.com/darrenscerri/duplicate-package-checker-webpack-plugin#readme
 // Definitions by: Matt Traynham <https://github.com/mtraynham>
diff --git a/builder/src/extensionConfig.ts b/builder/src/extensionConfig.ts
index f575a59dec72..389f59374b1b 100644
--- a/builder/src/extensionConfig.ts
+++ b/builder/src/extensionConfig.ts
@@ -32,7 +32,7 @@ function generateConfig({
 }: IOptions = {}): webpack.Configuration[] {
   const data = require(path.join(packagePath, 'package.json'));
 
-  const ajv = new Ajv({ useDefaults: true });
+  const ajv = new Ajv({ useDefaults: true, strict: false });
   const validate = ajv.compile(require('../metadata_schema.json'));
   let valid = validate(data.jupyterlab ?? {});
   if (!valid) {
@@ -251,13 +251,13 @@ function generateConfig({
     filename += '?v=[contenthash]';
   }
 
-  const rules: any = [{ test: /\.html$/, type: 'file-loader' }];
+  const rules: any = [{ test: /\.html$/, type: 'asset/resource' }];
 
   if (mode === 'development') {
     rules.push({
       test: /\.js$/,
       enforce: 'pre',
-      use: ['source-map-loader']
+      use: [require.resolve('source-map-loader')]
     });
   }
 
@@ -286,7 +286,14 @@ function generateConfig({
 
   if (mode === 'development') {
     const logPath = path.join(outputPath, 'build_log.json');
-    fs.writeFileSync(logPath, JSON.stringify(config, null, '  '));
+    function regExpReplacer(key: any, value: any) {
+      if (value instanceof RegExp) {
+        return value.toString();
+      } else {
+        return value;
+      }
+    }
+    fs.writeFileSync(logPath, JSON.stringify(config, regExpReplacer, '  '));
   }
   return config;
 }
diff --git a/builder/src/mini-css-extract-plugin.d.ts b/builder/src/mini-css-extract-plugin.d.ts
index 62c4e144a489..321acb2e502b 100644
--- a/builder/src/mini-css-extract-plugin.d.ts
+++ b/builder/src/mini-css-extract-plugin.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 // We use our own declaration because the existing typings do not work with webpack 5
 
 declare module 'mini-css-extract-plugin';
diff --git a/builder/src/webpack.config.base.ts b/builder/src/webpack.config.base.ts
index 9d1c0ae7b6fc..7d598a64f56b 100644
--- a/builder/src/webpack.config.base.ts
+++ b/builder/src/webpack.config.base.ts
@@ -1,41 +1,38 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-
-import * as path from 'path';
 import * as webpack from 'webpack';
-import crypto from 'crypto';
-
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = (algorithm: string) =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+import miniSVGDataURI from 'mini-svg-data-uri';
 
 const rules = [
-  { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-  { test: /\.txt$/, use: 'raw-loader' },
-  { test: /\.md$/, use: 'raw-loader' },
-  { test: /\.(jpg|png|gif)$/, use: 'file-loader' },
-  { test: /\.js.map$/, use: 'file-loader' },
+  { test: /\.raw\.css$/, type: 'asset/source' },
+  {
+    test: /(?<!\.raw)\.css$/,
+    use: [require.resolve('style-loader'), require.resolve('css-loader')]
+  },
+  { test: /\.txt$/, type: 'asset/source' },
+  { test: /\.md$/, type: 'asset/source' },
+  { test: /\.(jpg|png|gif)$/, type: 'asset/resource' },
+  { test: /\.js.map$/, type: 'asset/resource' },
   {
     test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
-    use: 'url-loader?limit=10000&mimetype=application/font-woff'
+    type: 'asset/resource'
   },
   {
     test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
-    use: 'url-loader?limit=10000&mimetype=application/font-woff'
+    type: 'asset/resource'
   },
   {
     test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
-    use: 'url-loader?limit=10000&mimetype=application/octet-stream'
+    type: 'asset/resource'
   },
-  { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, use: 'file-loader' },
+  { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, type: 'asset/resource' },
   {
     // In .css files, svg is loaded as a data URI.
     test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
     issuer: /\.css$/,
-    use: {
-      loader: 'svg-url-loader',
-      options: { encoding: 'none', limit: 10000 }
+    type: 'asset',
+    generator: {
+      dataUrl: (content: any) => miniSVGDataURI(content.toString())
     }
   },
   {
@@ -43,9 +40,7 @@ const rules = [
     // must be loaded as a raw string instead of data URIs.
     test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
     issuer: /\.js$/,
-    use: {
-      loader: 'raw-loader'
-    }
+    type: 'asset/source'
   },
   {
     test: /\.m?js$/,
@@ -65,42 +60,12 @@ const rules = [
   }
 ];
 
-// Map Phosphor files to Lumino files.
-const stylePath = path.join(
-  path.dirname(require.resolve('@lumino/widgets/package.json')),
-  'style'
-);
-
-let phosphorAlias = {};
-
-try {
-  phosphorAlias = {
-    '@phosphor/algorithm$': require.resolve('@lumino/algorithm'),
-    '@phosphor/application$': require.resolve('@lumino/application'),
-    '@phosphor/commands$': require.resolve('@lumino/commands'),
-    '@phosphor/coreutils$': require.resolve('@lumino/coreutils'),
-    '@phosphor/disposable$': require.resolve('@lumino/disposable'),
-    '@phosphor/domutils$': require.resolve('@lumino/domutils'),
-    '@phosphor/dragdrop$': require.resolve('@lumino/dragdrop'),
-    '@phosphor/dragdrop/style': stylePath,
-    '@phosphor/messaging$': require.resolve('@lumino/messaging'),
-    '@phosphor/properties$': require.resolve('@lumino/properties'),
-    '@phosphor/signaling': require.resolve('@lumino/signaling'),
-    '@phosphor/widgets/style': stylePath,
-    '@phosphor/virtualdom$': require.resolve('@lumino/virtualdom'),
-    '@phosphor/widgets$': require.resolve('@lumino/widgets')
-  };
-} catch (e) {
-  // no Phosphor shims required
-}
-
 const watch = process.argv.includes('--watch');
 
 module.exports = {
   bail: !watch,
   module: { rules },
   resolve: {
-    alias: phosphorAlias,
     fallback: {
       url: false,
       buffer: false,
diff --git a/buildutils/package.json b/buildutils/package.json
index d17b3a940685..5995006bcea7 100644
--- a/buildutils/package.json
+++ b/buildutils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/buildutils",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Build Utilities",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -19,7 +19,8 @@
     "local-repository": "./lib/local-repository.js",
     "remove-dependency": "./lib/remove-dependency.js",
     "update-dependency": "./lib/update-dependency.js",
-    "update-dist-tag": "./lib/update-dist-tag.js"
+    "update-dist-tag": "./lib/update-dist-tag.js",
+    "update-staging-lock": "./lib/update-staging-lock.js"
   },
   "directories": {
     "lib": "lib/"
@@ -31,40 +32,42 @@
     "template/package.json",
     "template/tsconfig.json",
     "template/src/index.ts",
-    "verdaccio.yml"
+    "verdaccio.yml",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
-    "build": "tsc",
-    "build:all": "npm run build",
+    "build": "tsc && cd template && npm run build",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@lumino/coreutils": "^1.11.0",
-    "@yarnpkg/lockfile": "^1.1.0",
+    "@yarnpkg/core": "^3.0.0",
+    "@yarnpkg/parsers": "^2.0.0",
     "child_process": "~1.0.2",
-    "commander": "~6.0.0",
+    "commander": "^9.4.1",
     "crypto": "~1.0.1",
-    "dependency-graph": "^0.9.0",
-    "fs-extra": "^9.0.1",
+    "dependency-graph": "^0.11.0",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
-    "inquirer": "^7.1.0",
+    "inquirer": "^9.1.4",
+    "micromatch": "^4.0.2",
     "minimatch": "~3.0.4",
     "os": "~0.1.1",
-    "package-json": "^6.5.0",
-    "prettier": "~2.1.1",
+    "package-json": "^7.0.0",
+    "prettier": "~2.6.0",
     "process": "^0.11.10",
     "semver": "^7.3.2",
-    "sort-package-json": "~1.44.0",
-    "typescript": "~4.1.3",
-    "verdaccio": "^5.20.1"
+    "sort-package-json": "~1.53.1",
+    "typescript": "~5.0.4",
+    "verdaccio": "^5.25.0"
   },
   "devDependencies": {
     "@types/fs-extra": "^9.0.1",
     "@types/glob": "^7.1.1",
-    "@types/inquirer": "^7.3.1",
-    "@types/node": "^14.6.1",
-    "@types/prettier": "~2.1.0",
+    "@types/inquirer": "^9.0.3",
+    "@types/micromatch": "^4.0.1",
+    "@types/node": "^18.11.18",
+    "@types/prettier": "~2.6.0",
     "rimraf": "~3.0.0"
   },
   "publishConfig": {
diff --git a/buildutils/src/add-sibling.ts b/buildutils/src/add-sibling.ts
deleted file mode 100755
index 68d8884d78c3..000000000000
--- a/buildutils/src/add-sibling.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import * as fs from 'fs-extra';
-import * as path from 'path';
-import * as utils from './utils';
-
-/**
- * Add an extension to the source tree of JupyterLab.
- * It takes as an argument either a path to a directory
- * on the local filesystem or a URL to a git repository.
- * In the former case, it copies the directory into the
- * source tree, in the latter it adds the repository as
- * a git submodule.
- *
- * It also adds the relevant metadata to the build files.
- */
-
-// Make sure we have required command line arguments.
-if (process.argv.length < 3) {
-  const msg = '** Must supply a target extension';
-  process.stderr.write(msg);
-  process.exit(1);
-}
-
-// Extract the desired git repository and repository name.
-const target = process.argv[2];
-const basePath = path.resolve('.');
-let packageDirName = path.basename(target);
-
-let packagePath = path.resolve(target);
-if (fs.existsSync(packagePath)) {
-  // Copy the package directory contents to the sibling package.
-  const newPackagePath = path.join(basePath, 'packages', packageDirName);
-  fs.copySync(packagePath, newPackagePath);
-  packagePath = newPackagePath;
-} else {
-  // Otherwise treat it as a git reposotory and try to add it.
-  packageDirName = target.split('/').pop()!.split('.')[0];
-  packagePath = path.join(basePath, 'packages', packageDirName);
-  utils.run('git clone ' + target + ' ' + packagePath);
-}
-
-// Remove any existing node_modules in the extension.
-if (fs.existsSync(path.join(packagePath, 'node_modules'))) {
-  fs.removeSync(path.join(packagePath, 'node_modules'));
-}
-
-// Make sure composite is set to true in the new package.
-const packageTsconfigPath = path.join(packagePath, 'tsconfig.json');
-if (fs.existsSync(packageTsconfigPath)) {
-  const packageTsconfig = utils.readJSONFile(packageTsconfigPath);
-  packageTsconfig.compilerOptions.composite = true;
-  utils.writeJSONFile(packageTsconfigPath, packageTsconfig);
-}
-
-// Get the package.json of the extension.
-const pkgJSONPath = path.join(packagePath, 'package.json');
-const data = utils.readJSONFile(pkgJSONPath);
-if (data.private !== true) {
-  data.publishConfig = {};
-  data.publishConfig.access = 'public';
-  utils.writeJSONFile(pkgJSONPath, data);
-}
-
-// Add the extension path to packages/metapackage/tsconfig.json
-const tsconfigPath = path.join(
-  basePath,
-  'packages',
-  'metapackage',
-  'tsconfig.json'
-);
-const tsconfig = utils.readJSONFile(tsconfigPath);
-tsconfig.references.push({
-  path: path.posix.join('..', '..', packageDirName)
-});
-utils.writeJSONFile(tsconfigPath, tsconfig);
-
-// Update the core jupyterlab build dependencies.
-utils.run('jlpm run integrity');
diff --git a/buildutils/src/bump-js-major.ts b/buildutils/src/bump-js-major.ts
index 656a582337e2..fe70bac9bf7b 100644
--- a/buildutils/src/bump-js-major.ts
+++ b/buildutils/src/bump-js-major.ts
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import semver from 'semver';
 import path from 'path';
 import * as utils from './utils';
@@ -36,7 +36,7 @@ commander
   .option('--force', 'Force the upgrade')
   .option('--dry-run', 'Show what would be executed')
   .action((pkg: string, others: Array<string>, options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
     others.push(pkg);
     const toBump: Set<string> = new Set();
     const ignoreBump: Set<string> = new Set();
@@ -65,7 +65,7 @@ commander
     });
 
     // Look for dependencies of bumped packages
-    Array.from(toBump).forEach(val => {
+    toBump.forEach(val => {
       const deps = getDeps(val, lut);
       deps.forEach(dep => {
         maybeBump(dep);
diff --git a/buildutils/src/bumpversion.ts b/buildutils/src/bumpversion.ts
index ed9dbee6076b..18164c815e9f 100644
--- a/buildutils/src/bumpversion.ts
+++ b/buildutils/src/bumpversion.ts
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import * as utils from './utils';
 
 // Specify the program signature.
@@ -14,7 +14,7 @@ commander
   .option('--skip-commit', 'Whether to skip commit changes')
   .arguments('<spec>')
   .action((spec: any, opts: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
 
     // Get the previous version.
     const prev = utils.getPythonVersion();
@@ -58,19 +58,7 @@ commander
 
     // Handle dry runs.
     if (opts.dryRun) {
-      utils.run(`bumpversion --dry-run --verbose ${spec}`);
-      return;
-    }
-
-    // If this is a major release during the alpha cycle, bump
-    // just the Python version.
-    if (prev.indexOf('a') !== -1 && spec === 'major') {
-      // Bump the version.
-      utils.run(`bumpversion ${spec}`);
-
-      // Run the post-bump script.
-      utils.postbump(commit);
-
+      utils.run(`bumpversion --allow-dirty --dry-run --verbose ${spec}`);
       return;
     }
 
@@ -92,22 +80,17 @@ commander
       lernaVersion += ' --preid=alpha';
     }
 
-    let cmd = `lerna version -m \"[ci skip] New version\" --force-publish=* --no-push ${lernaVersion}`;
+    let cmd = `lerna version --no-git-tag-version --force-publish=* --no-push ${lernaVersion}`;
     if (opts.force) {
       cmd += ' --yes';
     }
-    const oldVersion = utils.run(
-      'git rev-parse HEAD',
-      {
-        stdio: 'pipe',
-        encoding: 'utf8'
-      },
-      true
-    );
-    // For a preminor release, we bump 10 minor versions so that we do
+
+    const oldVersion = utils.getJSVersion('metapackage');
+
+    // For a major release, we bump 10 minor versions so that we do
     // not conflict with versions during minor releases of the top
     // level package.
-    if (lernaVersion === 'preminor') {
+    if (spec === 'major') {
       for (let i = 0; i < 10; i++) {
         utils.run(cmd);
       }
@@ -115,21 +98,14 @@ commander
       utils.run(cmd);
     }
 
-    const newVersion = utils.run(
-      'git rev-parse HEAD',
-      {
-        stdio: 'pipe',
-        encoding: 'utf8'
-      },
-      true
-    );
-    if (oldVersion === newVersion) {
+    const newVersion = utils.getJSVersion('metapackage');
+    if (spec !== 'major' && oldVersion === newVersion) {
       // lerna didn't version anything, so we assume the user aborted
       throw new Error('Lerna aborted');
     }
 
     // Bump the version.
-    utils.run(`bumpversion ${spec}`);
+    utils.run(`bumpversion --allow-dirty ${spec}`);
 
     // Run the post-bump script.
     utils.postbump(commit);
diff --git a/buildutils/src/clean-packages.ts b/buildutils/src/clean-packages.ts
index 27cf480cbac2..026f927c9389 100644
--- a/buildutils/src/clean-packages.ts
+++ b/buildutils/src/clean-packages.ts
@@ -6,9 +6,9 @@
 import * as fs from 'fs-extra';
 import * as path from 'path';
 import * as glob from 'glob';
-import { exitOnUuncaughtException, readJSONFile } from './utils';
+import { exitOnUncaughtException, readJSONFile } from './utils';
 
-exitOnUuncaughtException();
+exitOnUncaughtException();
 
 // Get all of the packages.
 const basePath = path.resolve('.');
diff --git a/buildutils/src/create-package.ts b/buildutils/src/create-package.ts
index 264460a3f3cb..0fd78080f45e 100644
--- a/buildutils/src/create-package.ts
+++ b/buildutils/src/create-package.ts
@@ -4,11 +4,10 @@
 |----------------------------------------------------------------------------*/
 
 import * as fs from 'fs-extra';
-import * as inquirer from 'inquirer';
 import * as path from 'path';
 import * as utils from './utils';
 
-const questions: inquirer.Question[] = [
+const questions = [
   {
     type: 'input',
     name: 'name',
@@ -21,27 +20,30 @@ const questions: inquirer.Question[] = [
   }
 ];
 
-void inquirer.prompt(questions).then(answers => {
-  let { name, description } = answers;
-  const dest = path.resolve(path.join('.', 'packages', name));
-  if (fs.existsSync(dest)) {
-    console.error('Package already exists: ', name);
-    process.exit(1);
-  }
-  fs.copySync(path.resolve(path.join(__dirname, '..', 'template')), dest);
-  const jsonPath = path.join(dest, 'package.json');
-  const data = utils.readJSONFile(jsonPath);
-  if (name.indexOf('@jupyterlab/') === -1) {
-    name = '@jupyterlab/' + name;
-  }
-  data.name = name;
-  data.description = description;
-  utils.writePackageData(jsonPath, data);
+void import('inquirer')
+  .then(inquirer => inquirer.createPromptModule())
+  .then(prompt => prompt(questions))
+  .then(answers => {
+    let { name, description } = answers;
+    const dest = path.resolve(path.join('.', 'packages', name));
+    if (fs.existsSync(dest)) {
+      console.error('Package already exists: ', name);
+      process.exit(1);
+    }
+    fs.copySync(path.resolve(path.join(__dirname, '..', 'template')), dest);
+    const jsonPath = path.join(dest, 'package.json');
+    const data = utils.readJSONFile(jsonPath);
+    if (name.indexOf('@jupyterlab/') === -1) {
+      name = '@jupyterlab/' + name;
+    }
+    data.name = name;
+    data.description = description;
+    utils.writePackageData(jsonPath, data);
 
-  // Add the launch file to git.
-  const launch = path.join(dest, '.vscode', 'launch.json');
-  utils.run(`git add -f ${launch}`);
+    // Add the launch file to git.
+    const launch = path.join(dest, '.vscode', 'launch.json');
+    utils.run(`git add -f ${launch}`);
 
-  // Use npm here so this file can be used outside of JupyterLab.
-  utils.run('npm run integrity');
-});
+    // Use npm here so this file can be used outside of JupyterLab.
+    utils.run('npm run integrity');
+  });
diff --git a/buildutils/src/create-theme.ts b/buildutils/src/create-theme.ts
deleted file mode 100644
index c27829c32eff..000000000000
--- a/buildutils/src/create-theme.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import * as fs from 'fs-extra';
-import * as inquirer from 'inquirer';
-import * as path from 'path';
-import * as utils from './utils';
-
-const questions: inquirer.Question[] = [
-  {
-    type: 'input',
-    name: 'name',
-    message: 'name: '
-  },
-  {
-    type: 'input',
-    name: 'title',
-    message: 'title: '
-  },
-  {
-    type: 'input',
-    name: 'description',
-    message: 'description: '
-  }
-];
-
-const template = `
-import {
-  JupyterFrontEnd, JupyterFrontEndPlugin
-} from '@jupyterlab/application';
-
-import {
-  IThemeManager
-} from '@jupyterlab/apputils';
-
-
-/**
- * A plugin for the {{title}}
- */
-const plugin: JupyterFrontEndPlugin<void> = {
-  id: '{{name}}:plugin',
-  requires: [IThemeManager],
-  activate: (app: JupyterFrontEnd, manager: IThemeManager) => {
-    manager.register({
-      name: '{{title}}',
-      isLight: true,
-      load: () => manager.loadCSS('{{name}}/index.css'),
-      unload: () => Promise.resolve(undefined)
-    });
-  },
-  autoStart: true
-};
-
-
-export default plugin;
-`;
-
-void inquirer.prompt(questions).then(answers => {
-  const { name, title, description } = answers;
-  const dest = path.resolve(path.join('.', name));
-  if (fs.existsSync(dest)) {
-    console.error('Package already exists: ', name);
-    process.exit(1);
-  }
-  fs.copySync(path.resolve('.', 'packages', 'theme-light-extension'), dest);
-  const jsonPath = path.join(dest, 'package.json');
-  const data = utils.readJSONFile(jsonPath);
-  data.name = name;
-  data.description = description;
-  utils.writePackageData(jsonPath, data);
-
-  // update the urls in urls.css
-  const filePath = path.resolve('.', name, 'style', 'urls.css');
-  let text = fs.readFileSync(filePath, 'utf8');
-  text = text.split('@jupyterlab/theme-light-extension').join(name);
-  fs.writeFileSync(filePath, text, 'utf8');
-
-  // remove lib, node_modules and static.
-  ['lib', 'node_modules', 'static'].forEach(folder => {
-    const folderPath = path.join('.', name, folder);
-    if (fs.existsSync(folderPath)) {
-      fs.removeSync(folderPath);
-    }
-  });
-
-  const readme = `${name}\n${description}\n`;
-  fs.writeFileSync(path.join('.', name, 'README.md'), readme, 'utf8');
-
-  let src = template.split('{{name}}').join(name);
-  src = src.split('{{title}}').join(title);
-  fs.writeFileSync(path.join('.', name, 'src', 'index.ts'), src, 'utf8');
-
-  // Signify successful complation.
-  console.debug(`Created new theme ${name}`);
-});
diff --git a/buildutils/src/dependency-graph.ts b/buildutils/src/dependency-graph.ts
deleted file mode 100644
index 97c222042da1..000000000000
--- a/buildutils/src/dependency-graph.ts
+++ /dev/null
@@ -1,294 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import * as fs from 'fs-extra';
-import * as lockfile from '@yarnpkg/lockfile';
-import * as path from 'path';
-import * as utils from './utils';
-import commander from 'commander';
-
-/**
- * Flatten a nested array one level.
- */
-function flat(arr: any[]) {
-  return arr.reduce((acc, val) => acc.concat(val), []);
-}
-
-/**
- * Parse the yarn file at the given path.
- */
-function readYarn(basePath: string = '.') {
-  const file = fs.readFileSync(path.join(basePath, 'yarn.lock'), 'utf8');
-  const json = lockfile.parse(file);
-
-  if (json.type !== 'success') {
-    throw new Error('Error reading file');
-  }
-
-  return json.object;
-}
-
-/**
- * Get a node name corresponding to package@versionspec.
- *
- * The nodes names are of the form "<package>@<resolved version>".
- *
- * Returns undefined if the package is not fund
- */
-function getNode(yarnData: any, pkgName: string) {
-  if (!(pkgName in yarnData)) {
-    console.error(
-      `Could not find ${pkgName} in yarn.lock file. Ignore if this is a top-level package.`
-    );
-    return undefined;
-  }
-  const name = pkgName[0] + pkgName.slice(1).split('@')[0];
-  const version = yarnData[pkgName].version;
-  const pkgNode = `${name}@${version}`;
-  return pkgNode;
-}
-
-/**
- * The type for graphs.
- *
- * Keys are nodes, values are the list of neighbors for the node.
- */
-type Graph = { [key: string]: string[] };
-
-/**
- * Build a dependency graph based on the yarn data.
- */
-function buildYarnGraph(yarnData: any): Graph {
-  // 'a': ['b', 'c'] means 'a' depends on 'b' and 'c'
-  const dependsOn: Graph = Object.create(null);
-
-  Object.keys(yarnData).forEach(pkgName => {
-    const pkg = yarnData[pkgName];
-    const pkgNode = getNode(yarnData, pkgName)!;
-
-    // If multiple version specs resolve to the same actual package version, we
-    // only want to record the dependency once.
-    if (dependsOn[pkgNode] !== undefined) {
-      return;
-    }
-
-    dependsOn[pkgNode] = [];
-    const deps = pkg.dependencies;
-    if (deps) {
-      Object.keys(deps).forEach(depName => {
-        const depNode = getNode(yarnData, `${depName}@${deps[depName]}`)!;
-        dependsOn[pkgNode].push(depNode);
-      });
-    }
-  });
-  return dependsOn;
-}
-
-/**
- * Construct a subgraph of all nodes reachable from the given nodes.
- */
-function subgraph(graph: Graph, nodes: string[]): Graph {
-  const sub = Object.create(null);
-  // Seed the graph
-  let newNodes = nodes;
-  while (newNodes.length > 0) {
-    const old = newNodes;
-    newNodes = [];
-    old.forEach(i => {
-      if (!(i in sub)) {
-        sub[i] = graph[i];
-        newNodes.push(...sub[i]);
-      }
-    });
-  }
-  return sub;
-}
-
-/**
- * Return the package.json data at the given path
- */
-function pkgData(packagePath: string) {
-  packagePath = path.join(packagePath, 'package.json');
-  let data: any;
-  try {
-    data = utils.readJSONFile(packagePath);
-  } catch (e) {
-    console.error('Skipping package ' + packagePath);
-    return {};
-  }
-  return data;
-}
-
-function convertDot(
-  g: { [key: string]: string[] },
-  graphOptions: string,
-  distinguishRoots = false,
-  distinguishLeaves = false
-) {
-  const edges: string[][] = flat(
-    Object.keys(g).map(a => g[a].map(b => [a, b]))
-  ).sort();
-  const nodes = Object.keys(g).sort();
-  // let leaves = Object.keys(g).filter(i => g[i].length === 0);
-  // let roots = Object.keys(g).filter(i => g[i].length === 0);
-  const dot = `
-digraph DEPS {
-  ${graphOptions || ''}
-  ${nodes.map(node => `"${node}";`).join(' ')}
-  ${edges.map(([a, b]) => `"${a}" -> "${b}"`).join('\n  ')}
-}
-`;
-  return dot;
-}
-
-interface IMainOptions {
-  dependencies: boolean;
-  devDependencies: boolean;
-  jupyterlab: boolean;
-  lerna: boolean;
-  lernaExclude: string;
-  lernaInclude: string;
-  path: string;
-  lumino: boolean;
-  topLevel: boolean;
-}
-
-function main({
-  dependencies,
-  devDependencies,
-  jupyterlab,
-  lerna,
-  lernaExclude,
-  lernaInclude,
-  path,
-  lumino,
-  topLevel
-}: IMainOptions) {
-  const yarnData = readYarn(path);
-  const graph = buildYarnGraph(yarnData);
-
-  const paths: string[] = [path];
-  if (lerna !== false) {
-    paths.push(...utils.getLernaPaths(path).sort());
-  }
-
-  // Get all package data
-  let data: any[] = paths.map(p => pkgData(p));
-
-  // Get top-level package names (these won't be listed in yarn)
-  const topLevelNames: Set<string> = new Set(data.map(d => d.name));
-
-  // Filter lerna packages if a regex was supplied
-  if (lernaInclude) {
-    const re = new RegExp(lernaInclude);
-    data = data.filter(d => d.name && d.name.match(re));
-  }
-  if (lernaExclude) {
-    const re = new RegExp(lernaExclude);
-    data = data.filter(d => d.name && !d.name.match(re));
-  }
-
-  const depKinds: string[] = [];
-  if (devDependencies) {
-    depKinds.push('devDependencies');
-  }
-  if (dependencies) {
-    depKinds.push('dependencies');
-  }
-  /**
-   * All dependency roots *except* other packages in this repo.
-   */
-  const dependencyRoots: string[][] = data.map(d => {
-    const roots: string[] = [];
-    for (const depKind of depKinds) {
-      const deps = d[depKind];
-      if (deps === undefined) {
-        continue;
-      }
-      const nodes = Object.keys(deps)
-        .map(i => {
-          // Do not get a package if it is a top-level package (and this is
-          // not in yarn).
-          if (!topLevelNames.has(i)) {
-            return getNode(yarnData, `${i}@${deps[i]}`);
-          }
-        })
-        .filter(i => i !== undefined) as string[];
-      roots.push(...nodes);
-    }
-    return roots;
-  });
-
-  // Find the subgraph
-  const sub = subgraph(graph, flat(dependencyRoots));
-
-  // Add in top-level lerna packages if desired
-  if (topLevel) {
-    data.forEach((d, i) => {
-      sub[`${d.name}@${d.version}`] = dependencyRoots[i];
-    });
-  }
-
-  // Filter out *all* lumino nodes
-  if (!lumino) {
-    Object.keys(sub).forEach(v => {
-      sub[v] = sub[v].filter(w => !w.startsWith('@lumino/'));
-    });
-    Object.keys(sub).forEach(v => {
-      if (v.startsWith('@lumino/')) {
-        delete sub[v];
-      }
-    });
-  }
-
-  // Filter for any edges going into a jlab package, and then for any
-  // disconnected jlab packages. This preserves jlab packages in the graph that
-  // point to other packages, so we can see where third-party packages come
-  // from.
-  if (!jupyterlab) {
-    Object.keys(sub).forEach(v => {
-      sub[v] = sub[v].filter(w => !w.startsWith('@jupyterlab/'));
-    });
-    Object.keys(sub).forEach(v => {
-      if (v.startsWith('@jupyterlab/') && sub[v].length === 0) {
-        delete sub[v];
-      }
-    });
-  }
-
-  return sub;
-}
-
-commander
-  .description(`Print out the dependency graph in dot graph format.`)
-  .option('--lerna', 'Include dependencies in all lerna packages')
-  .option(
-    '--lerna-include <regex>',
-    'A regex for package names to include in dependency roots'
-  )
-  .option(
-    '--lerna-exclude <regex>',
-    'A regex for lerna package names to exclude from dependency roots (can override the include regex)'
-  )
-  .option('--path [path]', 'Path to package or monorepo to investigate', '.')
-  .option(
-    '--no-jupyterlab',
-    'Do not include dependency connections TO @jupyterlab org packages nor isolated @jupyterlab org packages'
-  )
-  .option('--no-lumino', 'Do not include @lumino org packages')
-  .option('--no-devDependencies', 'Do not include dev dependencies')
-  .option('--no-dependencies', 'Do not include normal dependencies')
-  .option('--no-top-level', 'Do not include the top-level packages')
-  .option(
-    '--graph-options <options>',
-    'dot graph options (such as "ratio=0.25; concentrate=true;")'
-  )
-  .action(args => {
-    const graph = main(args);
-    console.debug(convertDot(graph, args.graphOptions));
-    console.error(`Nodes: ${Object.keys(graph).length}`);
-  });
-
-commander.parse(process.argv);
diff --git a/buildutils/src/ensure-package.ts b/buildutils/src/ensure-package.ts
index 5a2226753253..0522ff52fb00 100644
--- a/buildutils/src/ensure-package.ts
+++ b/buildutils/src/ensure-package.ts
@@ -68,8 +68,13 @@ export async function ensurePackage(
   const cssImports = options.cssImports || [];
   const cssModuleImports = options.cssModuleImports || [];
   const differentVersions = options.differentVersions || [];
+  const backwardVersions = options.backwardVersions ?? {};
   const isPrivate = data.private == true;
 
+  const hasBackwardCompatibilities = Object.keys(backwardVersions).includes(
+    data.name
+  );
+
   // Verify dependencies are consistent.
   let promises = Object.keys(deps).map(async name => {
     if (differentVersions.indexOf(name) !== -1) {
@@ -80,9 +85,50 @@ export async function ensurePackage(
       seenDeps[name] = await getDependency(name);
     }
     if (deps[name] !== seenDeps[name]) {
-      messages.push(`Updated dependency: ${name}@${seenDeps[name]}`);
+      const oneOf =
+        deps[name].includes('||') &&
+        deps[name]
+          .split(/\|\|/)
+          .map(v => v.trim())
+          .includes(seenDeps[name]);
+
+      if (!oneOf) {
+        if (
+          hasBackwardCompatibilities &&
+          Object.keys(backwardVersions[data.name]).includes(name)
+        ) {
+          messages.push(
+            `Updated dependency: ${name}@${
+              backwardVersions[data.name][name]
+            } || ${seenDeps[name]}`
+          );
+          deps[name] = `${backwardVersions[data.name][name]} || ${
+            seenDeps[name]
+          }`;
+        } else {
+          messages.push(`Updated dependency: ${name}@${seenDeps[name]}`);
+          deps[name] = seenDeps[name];
+        }
+      }
+    }
+
+    if (
+      hasBackwardCompatibilities &&
+      Object.keys(backwardVersions[data.name]).includes(name)
+    ) {
+      const oneOf = deps[name]
+        .split(/\|\|/)
+        .map(v => v.trim())
+        .includes(backwardVersions[data.name][name]);
+      if (!oneOf) {
+        messages.push(
+          `Updated backward dependency: ${name}@${
+            backwardVersions[data.name][name]
+          } || ${deps[name]}`
+        );
+        deps[name] = `${backwardVersions[data.name][name]} || ${deps[name]}`;
+      }
     }
-    deps[name] = seenDeps[name];
   });
 
   await Promise.all(promises);
@@ -140,23 +186,29 @@ export async function ensurePackage(
     data.name !== '@jupyterlab/codemirror'
   ) {
     imports.forEach(importStr => {
-      if (importStr.indexOf('.css') !== -1) {
-        messages.push('CSS imports are not allowed source files');
+      if (
+        importStr.indexOf('.css') !== -1 &&
+        importStr.indexOf('.raw.css') === -1
+      ) {
+        messages.push(
+          'CSS imports are not allowed source files unless using `.raw.css` extension'
+        );
       }
     });
   }
 
-  let names: string[] = Array.from(new Set(imports)).sort();
-  names = names.map(function (name) {
-    const parts = name.split('/');
-    if (name.indexOf('@') === 0) {
-      return parts[0] + '/' + parts[1];
-    }
-    if (parts[0].indexOf('!') !== -1) {
-      parts[0] = parts[0].slice(parts[0].lastIndexOf('!') + 1);
-    }
-    return parts[0];
-  });
+  const names = Array.from(new Set(imports))
+    .sort()
+    .map(name => {
+      const parts = name.split('/');
+      if (name.indexOf('@') === 0) {
+        return parts[0] + '/' + parts[1];
+      }
+      if (parts[0].indexOf('!') !== -1) {
+        parts[0] = parts[0].slice(parts[0].lastIndexOf('!') + 1);
+      }
+      return parts[0];
+    });
 
   // Look for imports with no dependencies.
   promises = names.map(async name => {
@@ -187,12 +239,13 @@ export async function ensurePackage(
       // Template the CSS index file.
       const cssIndexContents = [
         utils.fromTemplate(HEADER_TEMPLATE, { funcName }, { end: '' }),
-        ...cssImports.map(x => `@import url('~${x}');`),
-        ''
+        ...cssImports.map(x => `@import url('~${x}');`)
       ];
       if (fs.existsSync(path.join(pkgPath, 'style/base.css'))) {
-        cssIndexContents.push("@import url('./base.css');\n");
+        cssIndexContents.push("@import url('./base.css');");
       }
+      // Add final line return
+      cssIndexContents.push('');
 
       // write out cssIndexContents, if needed
       const cssIndexPath = path.join(pkgPath, 'style/index.css');
@@ -200,7 +253,7 @@ export async function ensurePackage(
         fs.ensureFileSync(cssIndexPath);
       }
       messages.push(
-        ...ensureFile(cssIndexPath, cssIndexContents.join('\n'), false)
+        ...(await ensureFile(cssIndexPath, cssIndexContents.join('\n'), false))
       );
 
       // Template the style module index file.
@@ -219,7 +272,7 @@ export async function ensurePackage(
         fs.ensureFileSync(jsIndexPath);
       }
       messages.push(
-        ...ensureFile(jsIndexPath, jsIndexContents.join('\n'), false)
+        ...(await ensureFile(jsIndexPath, jsIndexContents.join('\n'), false))
       );
     } else {
       if (
@@ -242,7 +295,7 @@ export async function ensurePackage(
       }
       const isTest = data.name.indexOf('test') !== -1;
       if (isTest) {
-        const testLibs = ['jest', 'ts-jest', '@jupyterlab/testutils'];
+        const testLibs = ['jest', 'ts-jest', '@jupyterlab/testing'];
         if (testLibs.indexOf(name) !== -1) {
           return;
         }
@@ -334,9 +387,6 @@ export async function ensurePackage(
     Object.keys(testReferences).forEach(name => {
       tsConfigTestData.references.push({ path: testReferences[name] });
     });
-    Object.keys(references).forEach(name => {
-      tsConfigTestData.references.push({ path: testReferences[name] });
-    });
     utils.writeJSONFile(tsConfigTestPath, tsConfigTestData);
   }
 
@@ -465,13 +515,21 @@ export async function ensurePackage(
 
   // Ensure style and lib are included in files metadata.
   const filePatterns: string[] = data.files || [];
+  const ignoreDirs: string[] = ['.ipynb_checkpoints'];
 
   // Function to get all of the files in a directory, recursively.
-  function recurseDir(dirname: string, files: string[]) {
+  function recurseDir(
+    dirname: string,
+    files: string[],
+    skipDirs: string[] = ignoreDirs
+  ) {
     if (!fs.existsSync(dirname)) {
       return files;
     }
     fs.readdirSync(dirname).forEach(fpath => {
+      if (skipDirs.includes(fpath)) {
+        return files;
+      }
       const absolute = path.join(dirname, fpath);
       if (fs.statSync(absolute).isDirectory())
         return recurseDir(absolute, files);
@@ -480,40 +538,75 @@ export async function ensurePackage(
     return files;
   }
 
-  // Ensure style files are included by pattern.
-  const styleFiles = recurseDir(path.join(pkgPath, 'style'), []);
-  styleFiles.forEach(fpath => {
-    const basePath = fpath.slice(pkgPath.length + 1);
-    let found = false;
-    filePatterns.forEach(fpattern => {
-      if (minimatch.default(basePath, fpattern)) {
-        found = true;
+  if (!isPrivate) {
+    // Ensure style files are included by pattern.
+    const styleFiles = recurseDir(path.join(pkgPath, 'style'), []);
+    styleFiles.forEach(fpath => {
+      const basePath = fpath.slice(pkgPath.length + 1);
+      let found = false;
+      filePatterns.forEach(fpattern => {
+        if (minimatch.default(basePath, fpattern)) {
+          found = true;
+        }
+      });
+      if (!found) {
+        messages.push(`File ${basePath} not included in files`);
       }
     });
-    if (!found && !isPrivate) {
-      messages.push(`File ${basePath} not included in files`);
-    }
-  });
 
-  // Ensure source TS files are included in lib (.js, .js.map, .d.ts)
-  const srcFiles = recurseDir(path.join(pkgPath, 'src'), []);
-  srcFiles.forEach(fpath => {
-    const basePath = fpath.slice(pkgPath.length + 1).replace('src', 'lib');
-    ['.js', '.js.map', '.d.ts'].forEach(ending => {
+    // Ensure source TS files are included in lib (.js, .js.map, .d.ts)
+    const srcFiles = recurseDir(path.join(pkgPath, 'src'), []);
+    srcFiles.forEach(fpath => {
+      const basePath = fpath
+        .slice(pkgPath.length + 1)
+        .replace('src', 'lib')
+        .split(path.sep)
+        .join('/');
+      ['.js', '.js.map', '.d.ts'].forEach(ending => {
+        let found = false;
+        const targetPattern = basePath.replace(/\.tsx?$/g, ending);
+        filePatterns.forEach(fpattern => {
+          if (minimatch.default(targetPattern, fpattern)) {
+            found = true;
+          }
+        });
+        if (!found) {
+          messages.push(`File ${targetPattern} not included in files`);
+        }
+      });
+    });
+
+    // Ensure source files are all included
+    let anySourceMatch = false;
+    const missingSourceMessages: string[] = [];
+    srcFiles.forEach(fpath => {
+      const basepath = fpath
+        .slice(pkgPath.length + 1)
+        .split(path.sep)
+        .join('/');
       let found = false;
-      const targetPattern = basePath
-        .replace('.tsx', ending)
-        .replace('.ts', ending);
       filePatterns.forEach(fpattern => {
-        if (minimatch.default(targetPattern, fpattern)) {
+        if (minimatch.default(basepath, fpattern)) {
           found = true;
         }
       });
-      if (!found && !isPrivate) {
-        messages.push(`File ${targetPattern} not included in files`);
+      anySourceMatch = anySourceMatch || found;
+      if (!found) {
+        missingSourceMessages.push(
+          `Source file ${basepath} not included in files`
+        );
       }
     });
-  });
+    if (srcFiles.length && !anySourceMatch) {
+      messages.push('Found no src file inclusion, adding src/**/*.{ts,tsx}');
+      if (!data.files) {
+        data.files = [];
+      }
+      data.files.push('src/**/*.{ts,tsx}');
+    } else {
+      messages.push(...missingSourceMessages);
+    }
+  }
 
   // Ensure dependencies and dev dependencies.
   data.dependencies = deps;
@@ -542,12 +635,12 @@ export async function ensurePackage(
     delete data.scripts.prepublishOnly;
   }
 
-  // If the package is not in `packages` or does not use `tsc` in its
+  // If the package does not use `tsc` in its
   // build script, add a `build:all` target
   const buildScript = data.scripts?.build || '';
   if (
-    buildScript &&
-    (pkgPath.indexOf('packages') == -1 || buildScript.indexOf('tsc') == -1) &&
+    path.basename(pkgPath) != 'galata' &&
+    buildScript?.indexOf('tsc') === -1 &&
     !isPrivate
   ) {
     data.scripts['build:all'] = 'npm run build';
@@ -665,7 +758,9 @@ export async function ensureUiComponents(
     HEADER_TEMPLATE + ICON_IMPORTS_TEMPLATE,
     { funcName, svgImportStatements, labiconConstructions }
   );
-  messages.push(...ensureFile(iconImportsPath, iconImportsContents, false));
+  messages.push(
+    ...(await ensureFile(iconImportsPath, iconImportsContents, false))
+  );
 
   /* support for deprecated icon CSS classes */
   const iconCSSDir = path.join(pkgPath, 'style');
@@ -691,7 +786,7 @@ export async function ensureUiComponents(
 
   // sort the statements and then join them
   const iconCSSUrls = _iconCSSUrls.sort().join('\n');
-  const iconCSSDeclarations = _iconCSSDeclarations.sort().join('\n');
+  const iconCSSDeclarations = _iconCSSDeclarations.sort().join('\n\n');
 
   // generate the actual contents of the iconCSSClasses file
   const iconCSSClassesPath = path.join(iconCSSDir, 'deprecated.css');
@@ -699,7 +794,9 @@ export async function ensureUiComponents(
     HEADER_TEMPLATE + ICON_CSS_CLASSES_TEMPLATE,
     { funcName, iconCSSUrls, iconCSSDeclarations }
   );
-  messages.push(...ensureFile(iconCSSClassesPath, iconCSSClassesContent));
+  messages.push(
+    ...(await ensureFile(iconCSSClassesPath, iconCSSClassesContent))
+  );
 
   return messages;
 }
@@ -757,6 +854,11 @@ export interface IEnsurePackageOptions {
    * Packages which are allowed to have multiple versions pulled in
    */
   differentVersions?: string[];
+
+  /**
+   * Older versions supported by core packages in addition to the latest.
+   */
+  backwardVersions?: Record<string, Record<string, string>>;
 }
 
 /**
@@ -775,11 +877,11 @@ export interface IEnsurePackageOptions {
  *
  * @returns a string array with 0 or 1 messages.
  */
-function ensureFile(
+async function ensureFile(
   fpath: string,
   contents: string,
   prettify: boolean = true
-): string[] {
+): Promise<string[]> {
   const messages: string[] = [];
 
   if (!fs.existsSync(fpath)) {
@@ -792,7 +894,7 @@ function ensureFile(
 
   // (maybe) run the newly generated contents through prettier before comparing
   let formatted = prettify
-    ? prettier.format(contents, { filepath: fpath, singleQuote: true })
+    ? await prettier.format(contents, { filepath: fpath, singleQuote: true })
     : contents;
 
   const prev = fs.readFileSync(fpath, { encoding: 'utf8' });
diff --git a/buildutils/src/ensure-repo.ts b/buildutils/src/ensure-repo.ts
index e653ea852a9f..f681d609a203 100644
--- a/buildutils/src/ensure-repo.ts
+++ b/buildutils/src/ensure-repo.ts
@@ -24,35 +24,36 @@ import {
 
 type Dict<T> = { [key: string]: T };
 
+type CoreData = Map<string, any>;
+
 // URL config for this branch
 // Source and target branches
 // Target RTD version name
-// For master these will be the same, for other branches the source
+// For main these will be the same, for other branches the source
 // branch is whichever branch it was created from
 // The current release branch should target RTD stable
-// Master should target latest
+// Main should target latest
 // All other release branches should target a specific named version
 const URL_CONFIG = {
-  source: '3.5.x',
-  target: '3.6.x',
-  rtdVersion: '3.6.x'
+  source: 'main',
+  target: '4.0.x',
+  rtdVersion: 'stable'
 };
 
 // Data to ignore.
 const MISSING: Dict<string[]> = {
   '@jupyterlab/coreutils': ['path'],
-  '@jupyterlab/buildutils': ['path', 'webpack'],
-  '@jupyterlab/builder': ['path', 'crypto'],
-  '@jupyterlab/galata': ['fs', 'path'],
-  '@jupyterlab/testutils': ['fs', 'path'],
+  '@jupyterlab/buildutils': ['assert', 'fs', 'path', 'webpack'],
+  '@jupyterlab/builder': ['path'],
+  '@jupyterlab/galata': ['fs', 'path', '@jupyterlab/galata'],
+  '@jupyterlab/testing': ['fs', 'path'],
   '@jupyterlab/vega5-extension': ['vega-embed']
 };
 
 const UNUSED: Dict<string[]> = {
   // url is a polyfill for sanitize-html
-  '@jupyterlab/apputils': ['@types/react', 'url'],
+  '@jupyterlab/apputils': ['@types/react'],
   '@jupyterlab/application': ['@fortawesome/fontawesome-free'],
-  '@jupyterlab/apputils-extension': ['es6-promise'],
   '@jupyterlab/builder': [
     '@lumino/algorithm',
     '@lumino/application',
@@ -70,43 +71,69 @@ const UNUSED: Dict<string[]> = {
     // The libraries needed for building other extensions.
     '@babel/core',
     '@babel/preset-env',
-    'babel-loader',
     'css-loader',
-    'file-loader',
     'path-browserify',
     'process',
-    'raw-loader',
     'style-loader',
-    'svg-url-loader',
     'terser-webpack-plugin',
-    'to-string-loader',
-    'url-loader',
     'webpack-cli',
     'worker-loader',
     'source-map-loader'
   ],
-  '@jupyterlab/buildutils': ['verdaccio'],
+  '@jupyterlab/buildutils': ['inquirer', 'verdaccio'],
+  '@jupyterlab/codemirror': [
+    '@codemirror/lang-cpp',
+    '@codemirror/lang-css',
+    '@codemirror/lang-html',
+    '@codemirror/lang-java',
+    '@codemirror/lang-javascript',
+    '@codemirror/lang-json',
+    '@codemirror/lang-markdown',
+    '@codemirror/lang-php',
+    '@codemirror/lang-python',
+    '@codemirror/lang-rust',
+    '@codemirror/lang-sql',
+    '@codemirror/lang-wast',
+    '@codemirror/lang-xml',
+    '@codemirror/legacy-modes'
+  ],
+  '@jupyterlab/codemirror-extension': [
+    '@codemirror/lang-markdown',
+    '@codemirror/legacy-modes'
+  ],
   '@jupyterlab/coreutils': ['path-browserify'],
-  '@jupyterlab/galata': ['node-fetch', 'http-server'],
-  '@jupyterlab/services': ['node-fetch', 'ws'],
-  '@jupyterlab/shared-models': ['@jupyter/ydoc', '@jupyterlab/nbformat'],
-  '@jupyterlab/rendermime': ['@jupyterlab/mathjax2'],
-  '@jupyterlab/testutils': [
+  '@jupyterlab/fileeditor': ['regexp-match-indices'],
+  '@jupyterlab/services': ['ws'],
+  '@jupyterlab/testing': [
+    '@babel/core',
+    '@babel/preset-env',
+    'fs-extra',
     'node-fetch',
     'identity-obj-proxy',
-    'jest-raw-loader',
-    'markdown-loader-jest',
-    'jest-junit',
-    'jest-summary-reporter'
+    'jest-environment-jsdom',
+    'jest-junit'
+  ],
+  '@jupyterlab/testutils': [
+    '@jupyterlab/application',
+    '@jupyterlab/apputils',
+    '@jupyterlab/notebook',
+    '@jupyterlab/rendermime'
   ],
   '@jupyterlab/test-csvviewer': ['csv-spectrum'],
-  '@jupyterlab/vega5-extension': ['vega', 'vega-lite'],
-  '@jupyterlab/ui-components': ['@blueprintjs/icons']
+  '@jupyterlab/vega5-extension': ['vega', 'vega-lite']
 };
 
 // Packages that are allowed to have differing versions
 const DIFFERENT_VERSIONS: Array<string> = ['vega-lite', 'vega', 'vega-embed'];
 
+// Packages that have backward versions support
+const BACKWARD_VERSIONS: Record<string, Record<string, string>> = {
+  '@jupyterlab/rendermime-interfaces': {
+    '@lumino/coreutils': '^1.11.0',
+    '@lumino/widgets': '^1.37.2'
+  }
+};
+
 const SKIP_CSS: Dict<string[]> = {
   '@jupyterlab/application': ['@jupyterlab/rendermime'],
   '@jupyterlab/application-extension': ['@jupyterlab/apputils'],
@@ -124,9 +151,7 @@ const SKIP_CSS: Dict<string[]> = {
     '@lumino/virtualdom',
     '@lumino/widgets'
   ],
-  '@jupyterlab/codemirror-extension': ['codemirror'],
   '@jupyterlab/completer': ['@jupyterlab/codeeditor'],
-  '@jupyterlab/debugger': ['codemirror'],
   '@jupyterlab/docmanager': ['@jupyterlab/statusbar'], // Statusbar styles should not be used by status reporters
   '@jupyterlab/docregistry': [
     '@jupyterlab/codeeditor', // Only used for model
@@ -138,12 +163,27 @@ const SKIP_CSS: Dict<string[]> = {
     '@jupyterlab/codeeditor',
     '@jupyterlab/codemirror',
     '@jupyterlab/fileeditor',
-    '@jupyterlab/notebook',
-    'codemirror'
+    '@jupyterlab/notebook'
   ],
   '@jupyterlab/filebrowser': ['@jupyterlab/statusbar'],
   '@jupyterlab/fileeditor': ['@jupyterlab/statusbar'],
+  '@jupyterlab/galata': [
+    '@jupyterlab/application',
+    '@jupyterlab/apputils',
+    '@jupyterlab/debugger',
+    '@jupyterlab/docmanager',
+    '@jupyterlab/notebook'
+  ],
+  '@jupyterlab/galata-extension': [
+    '@jupyterlab/application',
+    '@jupyterlab/apputils',
+    '@jupyterlab/cells',
+    '@jupyterlab/debugger',
+    '@jupyterlab/docmanager',
+    '@jupyterlab/notebook'
+  ],
   '@jupyterlab/help-extension': ['@jupyterlab/application'],
+  '@jupyterlab/lsp': ['codemirror'],
   '@jupyterlab/metapackage': [
     '@jupyterlab/ui-components',
     '@jupyterlab/apputils',
@@ -166,7 +206,6 @@ const SKIP_CSS: Dict<string[]> = {
     '@jupyterlab/notebook',
     '@jupyterlab/cell-toolbar',
     '@jupyterlab/cell-toolbar-extension',
-    '@jupyterlab/celltags',
     '@jupyterlab/celltags-extension',
     '@jupyterlab/fileeditor',
     '@jupyterlab/codemirror-extension',
@@ -177,12 +216,10 @@ const SKIP_CSS: Dict<string[]> = {
     '@jupyterlab/console-extension',
     '@jupyterlab/csvviewer',
     '@jupyterlab/documentsearch',
-    '@jupyterlab/docprovider',
     '@jupyterlab/csvviewer-extension',
     '@jupyterlab/debugger',
     '@jupyterlab/debugger-extension',
     '@jupyterlab/docmanager-extension',
-    '@jupyterlab/docprovider-extension',
     '@jupyterlab/documentsearch-extension',
     '@jupyterlab/extensionmanager',
     '@jupyterlab/extensionmanager-extension',
@@ -201,11 +238,15 @@ const SKIP_CSS: Dict<string[]> = {
     '@jupyterlab/launcher-extension',
     '@jupyterlab/logconsole',
     '@jupyterlab/logconsole-extension',
+    '@jupyterlab/lsp',
+    '@jupyterlab/lsp-extension',
     '@jupyterlab/mainmenu-extension',
     '@jupyterlab/markdownviewer',
     '@jupyterlab/markdownviewer-extension',
-    '@jupyterlab/mathjax2',
-    '@jupyterlab/mathjax2-extension',
+    '@jupyterlab/markedparser-extension',
+    '@jupyterlab/mathjax-extension',
+    '@jupyterlab/metadataform',
+    '@jupyterlab/metadataform-extension',
     '@jupyterlab/nbconvert-css',
     '@jupyterlab/notebook-extension',
     '@jupyterlab/pdf-extension',
@@ -226,22 +267,17 @@ const SKIP_CSS: Dict<string[]> = {
     '@jupyterlab/tooltip-extension',
     '@jupyterlab/translation-extension',
     '@jupyterlab/ui-components-extension',
-    '@jupyterlab/collaboration',
-    '@jupyterlab/collaboration-extension',
-    '@jupyterlab/vdom',
-    '@jupyterlab/vdom-extension',
     '@jupyterlab/vega5-extension'
   ],
+  '@jupyterlab/notebook': ['@jupyterlab/application'],
   '@jupyterlab/rendermime-interfaces': ['@lumino/widgets'],
   '@jupyterlab/shortcuts-extension': ['@jupyterlab/application'],
   '@jupyterlab/testutils': [
+    '@jupyterlab/application',
     '@jupyterlab/apputils',
-    '@jupyterlab/codeeditor',
-    '@jupyterlab/codemirror',
+    '@jupyterlab/notebook',
     '@jupyterlab/rendermime',
-    '@jupyterlab/docregistry',
-    '@jupyterlab/cells',
-    '@jupyterlab/notebook'
+    '@jupyterlab/testing'
   ],
   '@jupyterlab/theme-light-extension': [
     '@jupyterlab/application',
@@ -250,8 +286,7 @@ const SKIP_CSS: Dict<string[]> = {
   '@jupyterlab/theme-dark-extension': [
     '@jupyterlab/application',
     '@jupyterlab/apputils'
-  ],
-  '@jupyterlab/ui-extension': ['@blueprintjs/icons']
+  ]
 };
 
 const pkgData: Dict<any> = {};
@@ -291,7 +326,10 @@ function ensureBranch(): string[] {
     .trim()
     .split(/\r?\n/);
   files = files.filter(filePath => {
-    return fileTypes.indexOf(path.extname(filePath)) !== -1;
+    return (
+      fileTypes.indexOf(path.extname(filePath)) !== -1 &&
+      !filePath.endsWith('_static/switcher.json')
+    );
   });
 
   // Set up string replacements
@@ -377,7 +415,7 @@ function ensureMetaPackage(): string[] {
     let valid = true;
 
     // Ensure it is a dependency.
-    if (!mpData.dependencies[name]) {
+    if (!mpData.dependencies[name] && name !== '@jupyterlab/testing') {
       valid = false;
       mpData.dependencies[name] = '^' + data.version;
     }
@@ -410,27 +448,37 @@ function ensureMetaPackage(): string[] {
 }
 
 /**
- * Ensure the jupyterlab application package.
+ * Get the core data for the given core paths.
  */
-function ensureJupyterlab(): string[] {
-  const basePath = path.resolve('.');
-  const corePath = path.join(basePath, 'dev_mode', 'package.json');
-  const corePackage = utils.readJSONFile(corePath);
+function getCoreData(corePaths: string[]): CoreData {
+  const coreData = new Map<string, any>();
 
+  corePaths.forEach(pkgPath => {
+    const dataPath = path.join(pkgPath, 'package.json');
+    let data: any;
+    try {
+      data = utils.readJSONFile(dataPath);
+    } catch (e) {
+      return;
+    }
+
+    coreData.set(data.name, data);
+  });
+
+  return coreData;
+}
+
+/**
+ * Ensure a core package.
+ */
+function ensureCorePackage(corePackage: any, corePaths: string[]) {
   corePackage.jupyterlab.extensions = {};
-  corePackage.jupyterlab.mimeExtensions = {};
-  corePackage.jupyterlab.linkedPackages = {};
-  // start with known external dependencies
-  corePackage.dependencies = Object.assign(
-    {},
-    corePackage.jupyterlab.externalExtensions
-  );
-  corePackage.resolutions = {};
+  corePackage.dependencies = {};
 
   const singletonPackages: string[] = corePackage.jupyterlab.singletonPackages;
-  const coreData = new Map<string, any>();
+  const coreData = getCoreData(corePaths);
 
-  utils.getCorePaths().forEach(pkgPath => {
+  corePaths.forEach(pkgPath => {
     const dataPath = path.join(pkgPath, 'package.json');
     let data: any;
     try {
@@ -439,8 +487,6 @@ function ensureJupyterlab(): string[] {
       return;
     }
 
-    coreData.set(data.name, data);
-
     // If the package has a tokens.ts file, make sure it is noted as a singleton
     if (
       fs.existsSync(path.join(pkgPath, 'src', 'tokens.ts')) &&
@@ -486,7 +532,69 @@ function ensureJupyterlab(): string[] {
       )}`
     );
   }
+}
+
+/**
+ * Ensure the federated example core package.
+ */
+function ensureFederatedExample(): string[] {
+  const basePath = path.resolve('.');
+  const corePath = path.join(
+    basePath,
+    'examples',
+    'federated',
+    'core_package',
+    'package.json'
+  );
+  const corePackage = utils.readJSONFile(corePath);
+  // the list of dependencies might differ from the main JupyterLab application
+  const dependencies = new Set(Object.keys(corePackage.dependencies));
+
+  const corePaths = utils.getCorePaths().filter(p => {
+    return dependencies.has(`@jupyterlab/${path.basename(p)}`);
+  });
+
+  ensureCorePackage(corePackage, corePaths);
 
+  const coreData = getCoreData(corePaths);
+  corePackage.jupyterlab.extensions = [];
+  coreData.forEach((data, name) => {
+    // Make sure it is included as a dependency.
+    corePackage.dependencies[data.name] = `^${data.version}`;
+
+    const meta = data.jupyterlab;
+    const keep = meta?.extension || meta?.mimeExtension;
+    if (!keep) {
+      return;
+    }
+    corePackage.jupyterlab.extensions.push(name);
+  });
+
+  corePackage.jupyterlab.extensions.sort();
+
+  // Write the package.json back to disk.
+  if (utils.writePackageData(corePath, corePackage)) {
+    return ['Updated federated example'];
+  }
+  return [];
+}
+
+/**
+ * Ensure the jupyterlab application package.
+ */
+function ensureJupyterlab(): string[] {
+  const basePath = path.resolve('.');
+  const corePath = path.join(basePath, 'dev_mode', 'package.json');
+  const corePackage = utils.readJSONFile(corePath);
+  const corePaths = utils.getCorePaths();
+
+  ensureCorePackage(
+    corePackage,
+    corePaths.filter(p => !/\/packages\/testing$/.test(p))
+  );
+  corePackage.jupyterlab.mimeExtensions = {};
+
+  const coreData = getCoreData(corePaths);
   coreData.forEach((data, name) => {
     // Determine if the package wishes to be included in the top-level
     // dependencies.
@@ -504,7 +612,7 @@ function ensureJupyterlab(): string[] {
 
     // Handle extensions.
     ['extension', 'mimeExtension'].forEach(item => {
-      let ext = meta[item];
+      let ext = data.jupyterlab[item];
       if (ext === true) {
         ext = '';
       }
@@ -515,6 +623,7 @@ function ensureJupyterlab(): string[] {
     });
   });
 
+  corePackage.jupyterlab.linkedPackages = {};
   utils.getLernaPaths().forEach(pkgPath => {
     const dataPath = path.join(pkgPath, 'package.json');
     let data: any;
@@ -535,6 +644,10 @@ function ensureJupyterlab(): string[] {
     corePackage.jupyterlab.linkedPackages[data.name] = relativePath;
   });
 
+  // Update the dev mode version.
+  const curr = utils.getPythonVersion();
+  corePackage.jupyterlab.version = curr;
+
   // Write the package.json back to disk.
   if (utils.writePackageData(corePath, corePackage)) {
     return ['Updated dev mode'];
@@ -565,36 +678,6 @@ function ensureBuildUtils() {
   });
 }
 
-/**
- * Ensure lockfile structure
- */
-function ensureLockfile(): string[] {
-  const staging = './jupyterlab/staging';
-  const lockFile = path.join(staging, 'yarn.lock');
-  const content = fs.readFileSync(lockFile, { encoding: 'utf-8' });
-  let newContent = content;
-  const messages = [];
-
-  // Verify that all packages have resolved to the correct (default) registry
-  const resolvedPattern = /^\s*resolved "((?!https:\/\/registry\.yarnpkg\.com\/).*)"\s*$/gm;
-  let badRegistry;
-  while ((badRegistry = resolvedPattern.exec(content)) !== null) {
-    messages.push(`Fixing bad npm/yarn registry: ${badRegistry[1]}`);
-    const parsed = new URL(badRegistry[1]);
-    const newUrl = badRegistry[1].replace(
-      parsed.origin,
-      'https://registry.yarnpkg.com'
-    );
-    newContent = newContent.replace(badRegistry[1], newUrl);
-  }
-
-  if (content !== newContent) {
-    // Write the updated lockfile data back
-    fs.writeFileSync(lockFile, newContent, 'utf-8');
-  }
-  return messages;
-}
-
 /**
  * Ensure the repo integrity.
  */
@@ -721,7 +804,8 @@ export async function ensureIntegrity(): Promise<boolean> {
       locals,
       cssImports: cssImports[name],
       cssModuleImports: cssModuleImports[name],
-      differentVersions: DIFFERENT_VERSIONS
+      differentVersions: DIFFERENT_VERSIONS,
+      backwardVersions: BACKWARD_VERSIONS
     };
 
     if (name === '@jupyterlab/metapackage') {
@@ -744,12 +828,6 @@ export async function ensureIntegrity(): Promise<boolean> {
     messages[pkgName] = messages[pkgName].concat(pkgMessages);
   }
 
-  // Ensure the staging area lockfile
-  const lockFileMessages = ensureLockfile();
-  if (lockFileMessages.length > 0) {
-    messages['lockfile'] = lockFileMessages;
-  }
-
   // Handle the top level package.
   const corePath = path.resolve('.', 'package.json');
   const coreData: any = utils.readJSONFile(corePath);
@@ -761,7 +839,8 @@ export async function ensureIntegrity(): Promise<boolean> {
   const tsConfigDocExclude = [
     'application-extension',
     'metapackage',
-    'nbconvert-css'
+    'nbconvert-css',
+    'testing'
   ];
   const tsConfigdocPath = path.resolve('.', 'tsconfigdoc.json');
   const tsConfigdocData = utils.readJSONFile(tsConfigdocPath);
@@ -797,6 +876,12 @@ export async function ensureIntegrity(): Promise<boolean> {
     messages['top'].push('Update npm publish command in pyproject.toml');
   }
 
+  // Handle the federated example application
+  pkgMessages = ensureFederatedExample();
+  if (pkgMessages.length > 0) {
+    messages['@jupyterlab/example-federated-core'] = pkgMessages;
+  }
+
   // Handle the JupyterLab application top package.
   pkgMessages = ensureJupyterlab();
   if (pkgMessages.length > 0) {
@@ -812,7 +897,13 @@ export async function ensureIntegrity(): Promise<boolean> {
       );
       process.exit(1);
     }
-    utils.run('jlpm install');
+    try {
+      utils.run('jlpm install');
+    } catch (error) {
+      // Fallback in case this script is called during editable installation
+      utils.run(`node jupyterlab/staging/yarn.js install`);
+    }
+
     console.debug('\n\nMade integrity changes!');
     console.debug('Please commit the changes by running:');
     console.debug('git commit -a -m "Package integrity updates"');
diff --git a/buildutils/src/local-repository.ts b/buildutils/src/local-repository.ts
index 2b89f4392053..928b88693fe6 100644
--- a/buildutils/src/local-repository.ts
+++ b/buildutils/src/local-repository.ts
@@ -1,6 +1,11 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/* eslint-disable camelcase */
 import * as fs from 'fs-extra';
 import * as child_process from 'child_process';
-import * as crypto from 'crypto';
 import * as path from 'path';
 import * as os from 'os';
 import * as ps from 'process';
@@ -29,7 +34,11 @@ async function startLocalRegistry(out_dir: string, port = DEFAULT_PORT) {
   let prev_npm = utils.run('npm config get registry', { stdio: 'pipe' }, true);
   let prev_yarn = '';
   try {
-    prev_yarn = utils.run('yarn config get registry', { stdio: 'pipe' }, true);
+    prev_yarn = utils.run(
+      'yarn config get npmRegistryServer',
+      { stdio: 'pipe' },
+      true
+    );
   } catch (e) {
     // Do nothing
   }
@@ -131,7 +140,19 @@ packages:
     local_registry
   ]);
   try {
-    child_process.execSync(`yarn config set registry "${local_registry}"`);
+    child_process.execFileSync('yarn', [
+      'config',
+      'set',
+      'npmRegistryServer',
+      local_registry
+    ]);
+    child_process.execFileSync('yarn', [
+      'config',
+      'set',
+      'unsafeHttpWhitelist',
+      '--json',
+      '["0.0.0.0"]'
+    ]);
   } catch (e) {
     // yarn not available
   }
@@ -218,45 +239,20 @@ async function stopLocalRegistry(out_dir: string) {
     child_process.execSync(`npm config rm registry`);
   }
   if (data.prev_yarn) {
-    child_process.execSync(`yarn config set registry ${data.prev_yarn}`);
+    child_process.execSync(
+      `yarn config set npmRegistryServer ${data.prev_yarn}`
+    );
+    child_process.execSync(`yarn config unset unsafeHttpWhitelist`);
   } else {
     try {
-      child_process.execSync(`yarn config delete registry`);
+      child_process.execSync(`yarn config unset npmRegistryServer`);
+      child_process.execSync(`yarn config unset unsafeHttpWhitelist`);
     } catch (e) {
       // yarn not available
     }
   }
 }
 
-/**
- * Fix the yarn lock links in the given directory.
- */
-function fixLinks(package_dir: string) {
-  let yarn_reg = '';
-  try {
-    yarn_reg = utils.run('yarn config get registry', { stdio: 'pipe' }, true);
-  } catch (e) {
-    // Do nothing
-  }
-  yarn_reg = yarn_reg || 'https://registry.yarnpkg.com';
-  const lock_file = path.join(package_dir, 'yarn.lock');
-  console.log(`Fixing links in ${lock_file}`);
-  const content = fs.readFileSync(lock_file, { encoding: 'utf-8' });
-
-  let shasum = crypto.createHash('sha256');
-  let hash = shasum.update(content);
-  console.log('Prior hash', hash.digest('hex'));
-
-  const regex = /http\:\/\/0\.0\.0\.0\:\d+/g;
-  const new_content = content.replace(regex, yarn_reg);
-
-  shasum = crypto.createHash('sha256');
-  hash = shasum.update(new_content);
-  console.log('After hash', hash.digest('hex'));
-
-  fs.writeFileSync(lock_file, new_content, 'utf8');
-}
-
 /**
  * Publish the npm tar files in a given directory
  */
@@ -283,7 +279,7 @@ program
   .option('--port <port>', 'Port to use for the registry')
   .option('--path <path>', 'Path to use for the registry')
   .action(async (options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
     const out_dir = options.path || DEFAULT_OUT_DIR;
     await startLocalRegistry(out_dir, options.port || DEFAULT_PORT);
   });
@@ -292,24 +288,16 @@ program
   .command('stop')
   .option('--path <path>', 'Path to use for the registry')
   .action(async (options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
     const out_dir = options.path || DEFAULT_OUT_DIR;
     await stopLocalRegistry(out_dir);
   });
 
-program
-  .command('fix-links')
-  .option('--path <path>', 'Path to the directory with a yarn lock')
-  .action((options: any) => {
-    utils.exitOnUuncaughtException();
-    fixLinks(options.path || process.cwd());
-  });
-
 program
   .command('publish-dists')
   .option('--path <path>', 'Path to the directory with npm tar balls')
   .action((options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
     publishPackages(options.path || process.cwd());
   });
 
diff --git a/buildutils/src/patch-release.ts b/buildutils/src/patch-release.ts
old mode 100755
new mode 100644
index a4b5f73967d0..58e45b0da475
--- a/buildutils/src/patch-release.ts
+++ b/buildutils/src/patch-release.ts
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import * as utils from './utils';
 
 // Specify the program signature.
@@ -13,7 +13,7 @@ commander
   .option('--all', 'Patch all JS packages instead of the changed ones')
   .option('--skip-commit', 'Whether to skip commit changes')
   .action((options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
 
     // Make sure we can patch release.
     const pyVersion = utils.getPythonVersion();
@@ -29,38 +29,25 @@ commander
     utils.prebump();
 
     // Version the changed
-    let cmd = `lerna version patch -m \"[ci skip] New version\" --no-push`;
+    let cmd = `lerna version patch --no-git-tag-version --no-push`;
     if (options.all) {
       cmd += ' --force-publish=*';
     }
     if (options.force) {
       cmd += ' --yes';
     }
-    const oldVersion = utils.run(
-      'git rev-parse HEAD',
-      {
-        stdio: 'pipe',
-        encoding: 'utf8'
-      },
-      true
-    );
+
+    const oldVersion = utils.getJSVersion('metapackage');
     utils.run(cmd);
-    const newVersion = utils.run(
-      'git rev-parse HEAD',
-      {
-        stdio: 'pipe',
-        encoding: 'utf8'
-      },
-      true
-    );
+    const newVersion = utils.getJSVersion('metapackage');
+
     if (oldVersion === newVersion) {
-      console.debug('aborting');
       // lerna didn't version anything, so we assume the user aborted
       throw new Error('Lerna aborted');
     }
 
     // Patch the python version
-    utils.run('bumpversion patch'); // switches to alpha
+    utils.run('bumpversion patch --allow-dirty'); // switches to alpha
     utils.run('bumpversion release --allow-dirty'); // switches to beta
     utils.run('bumpversion release --allow-dirty'); // switches to rc.
     utils.run('bumpversion release --allow-dirty'); // switches to final.
diff --git a/buildutils/src/prepare-python-release.ts b/buildutils/src/prepare-python-release.ts
index 458e6071feb9..59199234971e 100644
--- a/buildutils/src/prepare-python-release.ts
+++ b/buildutils/src/prepare-python-release.ts
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import * as crypto from 'crypto';
 import * as fs from 'fs-extra';
 import * as path from 'path';
@@ -13,7 +13,7 @@ import * as utils from './utils';
 commander
   .description('Prepare the Python package for release')
   .action(async (options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
 
     const distDir = './dist';
 
diff --git a/buildutils/src/prepublish-check.ts b/buildutils/src/prepublish-check.ts
index 8ccb6f3d945a..19d54cf08025 100644
--- a/buildutils/src/prepublish-check.ts
+++ b/buildutils/src/prepublish-check.ts
@@ -8,7 +8,7 @@ import * as glob from 'glob';
 import * as path from 'path';
 import * as utils from './utils';
 
-utils.exitOnUuncaughtException();
+utils.exitOnUncaughtException();
 
 utils.run('npm run build:packages');
 
diff --git a/buildutils/src/prompt.d.ts b/buildutils/src/prompt.d.ts
deleted file mode 100644
index 388a2d99394f..000000000000
--- a/buildutils/src/prompt.d.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-// Type definitions for sort-package-json v1.7.1
-// https://github.com/keithamus/sort-package-json
-// Definitions by: Steven Silvester <https://github.com/blink1073>
-
-declare module 'prompt' {
-  export function start(): void;
-
-  export function get(
-    items: string[],
-    callback: (err: Error, result: any) => void
-  ): void;
-}
diff --git a/buildutils/src/publish.ts b/buildutils/src/publish.ts
index 3237841b18ff..18dbbde66e02 100644
--- a/buildutils/src/publish.ts
+++ b/buildutils/src/publish.ts
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import * as path from 'path';
 import * as os from 'os';
 import { handlePackage } from './update-dist-tag';
@@ -30,7 +30,7 @@ commander
   .option('--yes', 'Publish without confirmation')
   .option('--dry-run', 'Do not actually push any assets')
   .action(async (options: any) => {
-    utils.exitOnUuncaughtException();
+    utils.exitOnUncaughtException();
 
     // No-op if we're in release helper dry run
     if (process.env.RH_DRY_RUN === 'true') {
diff --git a/buildutils/src/read-package-json.d.ts b/buildutils/src/read-package-json.d.ts
deleted file mode 100644
index 6f8d125fc92b..000000000000
--- a/buildutils/src/read-package-json.d.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-// Type definitions for sort-package-json v1.7.1
-// https://github.com/keithamus/sort-package-json
-// Definitions by: Steven Silvester <https://github.com/blink1073>
-
-declare module 'sort-package-json' {
-  function sort(value: any): any;
-  export = sort;
-}
diff --git a/buildutils/src/remove-package.ts b/buildutils/src/remove-package.ts
old mode 100755
new mode 100644
diff --git a/buildutils/src/update-core-mode.ts b/buildutils/src/update-core-mode.ts
index aeb5a4ac8101..615443f73327 100644
--- a/buildutils/src/update-core-mode.ts
+++ b/buildutils/src/update-core-mode.ts
@@ -6,6 +6,7 @@
 import * as fs from 'fs-extra';
 import * as path from 'path';
 import * as utils from './utils';
+import { upgradeLock } from './update-staging-lock';
 
 // Run integrity to update the dev_mode package.json
 utils.run('jlpm integrity');
@@ -22,7 +23,7 @@ data['jupyterlab']['linkedPackages'] = {};
 const staging = './jupyterlab/staging';
 
 // Ensure a clean staging directory.
-const keep = ['yarn.js', '.yarnrc'];
+const keep = ['yarn.js', '.yarnrc.yml'];
 fs.readdirSync(staging).forEach(name => {
   if (keep.indexOf(name) === -1) {
     fs.removeSync(path.join(staging, name));
@@ -62,13 +63,14 @@ fs.copySync(
   path.join('.', 'yarn.lock'),
   path.join('.', 'jupyterlab', 'staging', 'yarn.lock')
 );
-utils.run('jlpm', { cwd: staging });
-try {
-  utils.run('jlpm yarn-deduplicate -s fewer --fail', { cwd: staging });
-} catch {
-  // re-run install if we deduped packages!
-  utils.run('jlpm', { cwd: staging });
-}
+process.env.YARN_UNSAFE_HTTP_WHITELIST = '0.0.0.0';
+upgradeLock('@jupyterlab/*', {
+  lock: path.join(staging, 'yarn.lock'),
+  cwd: staging
+});
+utils.run('jlpm dlx yarn-berry-deduplicate --strategy fewerHighest', {
+  cwd: staging
+});
 
 // Build the core assets.
 utils.run('jlpm run build:prod:release', { cwd: staging });
diff --git a/buildutils/src/update-dependency.ts b/buildutils/src/update-dependency.ts
index 721dcf74b64f..945fe1f03e0f 100755
--- a/buildutils/src/update-dependency.ts
+++ b/buildutils/src/update-dependency.ts
@@ -8,7 +8,7 @@ import * as path from 'path';
 import * as utils from './utils';
 import packageJson from 'package-json';
 
-import commander from 'commander';
+import { program as commander } from 'commander';
 import semver from 'semver';
 
 const versionCache = new Map();
diff --git a/buildutils/src/update-dist-tag.ts b/buildutils/src/update-dist-tag.ts
old mode 100755
new mode 100644
index 719daff97802..85e7ca6184d5
--- a/buildutils/src/update-dist-tag.ts
+++ b/buildutils/src/update-dist-tag.ts
@@ -6,7 +6,7 @@
 import * as path from 'path';
 import * as utils from './utils';
 import packageJson from 'package-json';
-import commander from 'commander';
+import { program as commander } from 'commander';
 import semver from 'semver';
 
 /**
diff --git a/buildutils/src/update-staging-lock.ts b/buildutils/src/update-staging-lock.ts
new file mode 100644
index 000000000000..7a227175b105
--- /dev/null
+++ b/buildutils/src/update-staging-lock.ts
@@ -0,0 +1,161 @@
+#!/usr/bin/env node
+/* -----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+import { structUtils } from '@yarnpkg/core';
+import { parseSyml, stringifySyml } from '@yarnpkg/parsers';
+import { program } from 'commander';
+import fs from 'fs';
+import micromatch from 'micromatch';
+import semver from 'semver';
+import { exitOnUncaughtException, run } from './utils';
+
+/**
+ * Yarn lock entry
+ *
+ * Copied from https://github.com/christophehurpeau/yarn-deduplicate/blob/yarn-berry/src/yarnlock.ts
+ */
+type YarnEntry = {
+  version: string;
+  resolution: string;
+  dependencies?: Record<string, string>;
+  checksum?: string;
+  languageName?: 'node';
+  linkType?: 'hard' | 'soft';
+};
+
+// Copied from https://github.com/yarnpkg/berry/blob/d85702c61e3b19715c728fa9d2ecec68dcbf39b2/packages/yarnpkg-core/sources/Project.ts#L1988
+const yarnLockHeader = `${[
+  `# This file is generated by running "yarn install" inside your project.\n`,
+  `# Manual changes might be lost - proceed with caution!\n`
+].join(``)}\n`;
+
+export function upgradeLock(
+  packages: string,
+  options: { lock: string; cwd?: string }
+): void {
+  exitOnUncaughtException();
+
+  const lockFile = options.lock ?? 'yarn.lock';
+
+  // Load current yarn.lock
+  const pkgs = loadPackages(lockFile);
+  const pkgToDescriptor = new Map<string, string[]>();
+  for (const pkg in pkgs) {
+    if (pkg.startsWith('__')) {
+      continue;
+    }
+    const name = extractNameFromDescriptor(pkgs[pkg].resolution);
+
+    if (pkgToDescriptor.has(name)) {
+      pkgToDescriptor.get(name)!.push(pkg);
+    } else {
+      pkgToDescriptor.set(name, [pkg]);
+    }
+  }
+
+  // Update the yarn.lock file recursevily at most 5 times (normally twice is enough)
+  let counter = 5;
+  do {
+    run('jlpm install', { cwd: options.cwd });
+  } while (
+    upgradeSelectedPackages(lockFile, pkgToDescriptor, packages, pkgs) &&
+    counter-- > 0
+  );
+
+  // Check that the yarn.lock is immutable
+  run('jlpm install --immutable', { cwd: options.cwd });
+}
+
+/**
+ * Downgrade package versions to match old locked version expect
+ * for the package matching the provided pattern.
+ *
+ * @param lockFile yarn.lock file
+ * @param pkgToDescriptor Package name to yarn descriptors
+ * @param packages Package pattern to update
+ * @param pkgs Original package versions
+ * @returns Whether some versions have been downgraded or not
+ */
+function upgradeSelectedPackages(
+  lockFile: string,
+  pkgToDescriptor: Map<string, string[]>,
+  packages: string,
+  pkgs: Record<string, YarnEntry>
+): boolean {
+  let hasChange = false;
+  const newPkgs = loadPackages(lockFile);
+  for (const pkg in newPkgs) {
+    if (pkg.startsWith('__')) {
+      continue;
+    }
+    const name = extractNameFromDescriptor(newPkgs[pkg].resolution);
+    if (pkgToDescriptor.has(name)) {
+      if (!micromatch.isMatch(name, packages)) {
+        let noMatch = true;
+        for (const origDescriptor of pkgToDescriptor.get(name)!) {
+          const origPkg = pkgs[origDescriptor];
+          if (
+            pkg.split(',').every(desc => {
+              const parsedDesc = structUtils.parseDescriptor(desc.trim());
+              const range = structUtils.parseRange(parsedDesc.range);
+              return (
+                !semver.validRange(range.selector) ||
+                semver.satisfies(origPkg.version, range.selector)
+              );
+            })
+          ) {
+            noMatch = false;
+            if (origPkg.version !== newPkgs[pkg].version) {
+              hasChange = true;
+              console.log(
+                `Downgrade '${name}' from ${newPkgs[pkg].version} to ${origPkg.version}`
+              );
+              newPkgs[pkg] = origPkg;
+            }
+            break;
+          }
+        }
+        if (noMatch) {
+          console.warn(`No package found for '${pkg}'.`);
+        }
+      } else {
+        console.log(`Ignoring package '${pkg}'.`);
+      }
+    } else {
+      console.warn(`New package '${pkg}' added.`);
+    }
+  }
+
+  if (hasChange) {
+    const newLock = yarnLockHeader + stringifySyml(newPkgs);
+
+    fs.writeFileSync(lockFile, newLock, { encoding: 'utf-8' });
+  }
+  return hasChange;
+}
+
+function extractNameFromDescriptor(name: string): string {
+  const descriptor = structUtils.parseDescriptor(name.split(',')[0].trim());
+  return descriptor.scope
+    ? `@${descriptor.scope}/${descriptor.name}`
+    : descriptor.name;
+}
+
+function loadPackages(lockFile: string): Record<string, YarnEntry> {
+  const yarnLock = fs.readFileSync(lockFile, { encoding: 'utf-8' });
+  return parseSyml(yarnLock);
+}
+
+if (require.main === module) {
+  program
+    .description(
+      'Update yarn.lock at minima; aka only packages matching the provided pattern (support fnmatch syntax) are updated.'
+    )
+    .option('--lock', 'yarn.lock file name', 'yarn.lock')
+    .arguments('packages')
+    .action(upgradeLock);
+  program.parse(process.argv);
+}
diff --git a/buildutils/src/utils.ts b/buildutils/src/utils.ts
index 96d8b33f6c23..10db465efe98 100644
--- a/buildutils/src/utils.ts
+++ b/buildutils/src/utils.ts
@@ -1,10 +1,17 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/* global NodeRequire */
 import path from 'path';
 import glob from 'glob';
 import fs from 'fs-extra';
 import childProcess from 'child_process';
 import { DepGraph } from 'dependency-graph';
 import sortPackageJson from 'sort-package-json';
-import { JSONExt, JSONObject } from '@lumino/coreutils';
+
+import assert from 'assert';
 
 type Dict<T> = { [key: string]: T };
 
@@ -13,7 +20,7 @@ const backSlash = /\\/g;
 /**
  *  Exit with an error code on uncaught error.
  */
-export function exitOnUuncaughtException(): void {
+export function exitOnUncaughtException(): void {
   process.on('uncaughtException', function (err: any) {
     if (err.status || err.stdout || err.stderr) {
       console.error(`Status: ${err.status}`);
@@ -78,13 +85,13 @@ export function getCorePaths(): string[] {
  *
  * @param data - The package data.
  *
- * @oaram pkgJsonPath - The path to the package.json file.
+ * @param pkgJsonPath - The path to the package.json file.
  *
  * @returns Whether the file has changed.
  */
 export function writePackageData(
   pkgJsonPath: string,
-  data: JSONObject
+  data: Record<any, any>
 ): boolean {
   const text = JSON.stringify(sortPackageJson(data), null, 2) + '\n';
   const orig = fs.readFileSync(pkgJsonPath, 'utf8').split('\r\n').join('\n');
@@ -109,7 +116,10 @@ export function readJSONFile(filePath: string): any {
 /**
  * Write a json file.
  */
-export function writeJSONFile(filePath: string, data: JSONObject): boolean {
+export function writeJSONFile(
+  filePath: string,
+  data: Record<any, any>
+): boolean {
   function sortObjByKey(value: any): any {
     // https://stackoverflow.com/a/35810961
     return typeof value === 'object'
@@ -131,11 +141,15 @@ export function writeJSONFile(filePath: string, data: JSONObject): boolean {
   } catch (e) {
     // no-op
   }
-  if (!JSONExt.deepEqual(data, orig)) {
+
+  // If values do not match, overwrite file.
+  try {
+    assert.deepStrictEqual(data, orig);
+    return false;
+  } catch (error) {
     fs.writeFileSync(filePath, text, 'utf8');
     return true;
   }
-  return false;
 }
 
 /**
@@ -199,7 +213,7 @@ export function checkStatus(cmd: string): number | null {
  * Get the current version of JupyterLab
  */
 export function getPythonVersion(): string {
-  const cmd = 'python setup.py --version';
+  const cmd = 'hatchling version';
   const lines = run(cmd, { stdio: 'pipe' }, true).split('\n');
   return lines[lines.length - 1];
 }
@@ -228,11 +242,17 @@ export function prebump(): void {
     encoding: 'utf8'
   });
   if (status.length > 0) {
+    const diff = run('git diff', {
+      stdio: 'pipe',
+      encoding: 'utf8'
+    });
     throw new Error(
       `Must be in a clean git state with no untracked files.
 Run "git status" to see the issues.
 
-${status}`
+${status}
+
+${diff}`
     );
   }
 }
@@ -241,14 +261,7 @@ ${status}`
  * Post-bump.
  */
 export function postbump(commit = true): void {
-  // Get the current version.
-  const curr = getPythonVersion();
-
-  // Update the dev mode version.
-  const filePath = path.resolve(path.join('.', 'dev_mode', 'package.json'));
-  const data = readJSONFile(filePath);
-  data.jupyterlab.version = curr;
-  writeJSONFile(filePath, data);
+  run('jlpm run integrity');
 
   // Commit changes.
   if (commit) {
@@ -334,6 +347,25 @@ export function getPackageGraph(): DepGraph<Dict<unknown>> {
   return graph;
 }
 
+function isModuleDir(current: string, moduleDirs: string[]): boolean {
+  return moduleDirs.some(dir => current.endsWith(dir));
+}
+
+function findPackageJson(base: string, moduleDirs: string[]): NodeRequire {
+  const { root } = path.parse(base);
+  let current = base;
+
+  while (current !== root && !isModuleDir(current, moduleDirs)) {
+    const pkgJsonPath = path.join(current, 'package.json');
+    if (fs.existsSync(pkgJsonPath)) {
+      return require(pkgJsonPath);
+    }
+    current = path.resolve(current, '..');
+  }
+  throw new Error(
+    `Unable to find package.json for '${base}', moduleDirs = '${moduleDirs[0]}'`
+  );
+}
 /**
  * Resolve a `package.json` in the `module` starting at resolution from the `parentModule`.
  *
@@ -347,12 +379,30 @@ function requirePackage(parentModule: string, module: string): NodeRequire {
   try {
     parentModulePath = require.resolve(parentModule);
   } catch {
-    return require(packagePath);
+    try {
+      return require(packagePath);
+    } catch {
+      return findPackageJson(module, [path.resolve(packagePath, '..')]);
+    }
   }
-  const requirePath = require.resolve(packagePath, {
-    paths: [parentModulePath]
-  });
-  return require(requirePath);
+
+  try {
+    // This may fail for package not exporting `package.json` in their exports map
+    // https://github.com/nodejs/node/issues/33460
+    const requirePath = require.resolve(packagePath, {
+      paths: [parentModulePath]
+    });
+    return require(requirePath);
+  } catch {
+    // If it fails, try to find the package.json by going parent to parent
+    // Inspired by https://github.com/rollup/plugins/blob/540767b947cfad0dd06a278b977b8ce05da9593c/packages/node-resolve/src/package/utils.js#L11
+    const base = require.resolve(module, {
+      paths: [parentModulePath]
+    });
+    return findPackageJson(base, [parentModulePath]);
+  }
+
+  throw new Error(`Unable to find package.json for '${module}'.`);
 }
 
 /**
diff --git a/buildutils/src/yarnlock.d.ts b/buildutils/src/yarnlock.d.ts
deleted file mode 100644
index 82a1db6e65f2..000000000000
--- a/buildutils/src/yarnlock.d.ts
+++ /dev/null
@@ -1 +0,0 @@
-declare module '@yarnpkg/lockfile';
diff --git a/buildutils/template/babel.config.js b/buildutils/template/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/buildutils/template/babel.config.js
+++ b/buildutils/template/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/buildutils/template/jest.config.js b/buildutils/template/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/buildutils/template/jest.config.js
+++ b/buildutils/template/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/buildutils/template/package.json b/buildutils/template/package.json
index 62c247207bff..a7627faf296f 100644
--- a/buildutils/template/package.json
+++ b/buildutils/template/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/template",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Package Template",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,26 +23,24 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}"
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:all": "npm run build",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib tsconfig.tsbuildinfo",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/buildutils/template/tsconfig.test.json b/buildutils/template/tsconfig.test.json
index 717c38a1f87b..206275947f45 100644
--- a/buildutils/template/tsconfig.test.json
+++ b/buildutils/template/tsconfig.test.json
@@ -6,7 +6,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
+      "path": "../../packages/testing"
     }
   ]
 }
diff --git a/buildutils/tsconfig.json b/buildutils/tsconfig.json
index 945e3ce9d755..7095bede4bd5 100644
--- a/buildutils/tsconfig.json
+++ b/buildutils/tsconfig.json
@@ -3,7 +3,8 @@
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src",
-    "module": "commonjs"
+    "module": "commonjs",
+    "moduleResolution": "node16"
   },
   "include": ["src/*"],
   "references": []
diff --git a/clean.py b/clean.py
index 7f310cfadd76..2672d280bf3e 100644
--- a/clean.py
+++ b/clean.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import os
 import subprocess
 
@@ -6,16 +9,18 @@
 
 # Workaround for https://github.com/git-for-windows/git/issues/607
 if os.name == "nt":
-    for (root, dnames, files) in os.walk(here):
+    for root, dnames, _ in os.walk(here):
         if "node_modules" in dnames:
-            subprocess.check_call(["rmdir", "/s", "/q", "node_modules"], cwd=root, shell=True)
+            subprocess.check_call(
+                ["rmdir", "/s", "/q", "node_modules"], cwd=root, shell=True  # noqa S602 S607
+            )
             dnames.remove("node_modules")
 
 
-subprocess.check_call("python -m pip uninstall -y jupyterlab".split(), cwd=here)
+subprocess.check_call("python -m pip uninstall -y jupyterlab".split(), cwd=here)  # noqa S603
 
 
-def resolvePattern(pat):
+def resolve_pattern(pat):
     """handle a leading `#` or `@` in a pattern"""
     pat = pat.strip()
 
@@ -30,7 +35,7 @@ def resolvePattern(pat):
 
 # get the exclude patterns listed in .cleanignore
 with open(os.path.join(here, ".cleanignore")) as f:
-    git_clean_exclude = [f"--exclude={pat}" for line in f for pat in resolvePattern(line)]
+    git_clean_exclude = [f"--exclude={pat}" for line in f for pat in resolve_pattern(line)]
 
-git_clean_command = ["git", "clean", "-dfx"] + git_clean_exclude
-subprocess.check_call(git_clean_command, cwd=here)
+git_clean_command = ["git", "clean", "-dfx", *git_clean_exclude]
+subprocess.check_call(git_clean_command, cwd=here)  # noqa S603
diff --git a/conftest.py b/conftest.py
index 468480a387e3..70007f557e7b 100644
--- a/conftest.py
+++ b/conftest.py
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
diff --git a/design/notebook.md b/design/notebook.md
index 6c6edcbafe68..c51850409861 100644
--- a/design/notebook.md
+++ b/design/notebook.md
@@ -50,9 +50,9 @@ Users should be able to:
   - Select multiple cells at once (mouse, shortcut)
   - Move cell(s) up and down (mouse)
 - Use notebook operations
-  - Clear All Outputs (command palette)
+  - Clear Outputs of All Cells (command palette)
   - Interrupt Kernel (command palette, shortcut, toolbar)
-  - Restart Kernel & Clear Outputs (command palette)
+  - Restart Kernel & Clear Outputs of All Cells (command palette)
   - Restart Kernel & Run All (command palette)
   - Run All Cells (command palette)
   - Switch Kernel (command palette, toolbar)
diff --git a/dev_mode/bootstrap.js b/dev_mode/bootstrap.js
index 1b6fc698b24f..5a44157bd40e 100644
--- a/dev_mode/bootstrap.js
+++ b/dev_mode/bootstrap.js
@@ -1,7 +1,7 @@
-/*-----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 // We copy some of the pageconfig parsing logic in @jupyterlab/coreutils
 // below, since this must run before any other files are loaded (including
@@ -40,26 +40,6 @@ function getOption(name) {
 // eslint-disable-next-line no-undef
 __webpack_public_path__ = getOption('fullStaticUrl') + '/';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise.then(
-          value => ({
-            status: 'fulfilled',
-            value
-          }),
-          reason => ({
-            status: 'rejected',
-            reason
-          })
-        )
-      )
-    );
-}
-
 function loadScript(url) {
   return new Promise((resolve, reject) => {
     const newScript = document.createElement('script');
diff --git a/dev_mode/index.js b/dev_mode/index.js
index b5e694957cd7..bc177ee113bc 100644
--- a/dev_mode/index.js
+++ b/dev_mode/index.js
@@ -1,28 +1,10 @@
-/*-----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 import { PageConfig } from '@jupyterlab/coreutils';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise
-          .then(value => ({
-            status: "fulfilled",
-            value,
-          }), reason => ({
-            status: "rejected",
-            reason,
-          }))
-      )
-    );
-}
-
 import './style.js';
 
 async function createModule(scope, module) {
@@ -87,8 +69,6 @@ export async function main() {
     PageConfig.getOption('federated_extensions')
   );
 
-  var futureSkipStylesForDisabled = (PageConfig.getOption('futureSkipStylesForDisabled') || '').toLowerCase() === 'true';
-
   const queuedFederated = [];
 
   extensions.forEach(data => {
@@ -101,7 +81,7 @@ export async function main() {
       federatedMimeExtensionPromises.push(createModule(data.name, data.mimeExtension));
     }
 
-    if (data.style && (!futureSkipStylesForDisabled || !PageConfig.Extension.isDisabled(data.name))) {
+    if (data.style && !PageConfig.Extension.isDisabled(data.name)) {
       federatedStylePromises.push(createModule(data.name, data.style));
     }
   });
@@ -215,7 +195,6 @@ export async function main() {
   var devMode = (PageConfig.getOption('devMode') || '').toLowerCase() === 'true';
 
   if (exposeAppInBrowser || devMode) {
-    window.jupyterlab = lab;
     window.jupyterapp = lab;
   }
 
diff --git a/dev_mode/package.json b/dev_mode/package.json
index 18a6f6a5550d..6c7214766734 100644
--- a/dev_mode/package.json
+++ b/dev_mode/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/application-top",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "license": "BSD-3-Clause",
   "scripts": {
@@ -8,223 +8,222 @@
     "build:dev": "npm run build",
     "build:prod": "webpack --config webpack.prod.config.js",
     "build:prod:minimize": "webpack --config webpack.prod.minimize.config.js",
+    "build:prod:minimize:report": "npm run build:prod:minimize:stats && webpack-bundle-analyzer --no-open --mode static --report static/webpack-bundle-analyzer.html stats.json static",
+    "build:prod:minimize:stats": "webpack --profile --config webpack.prod.minimize.config.js --json > stats.json",
     "build:prod:release": "webpack --config webpack.prod.release.config.js",
-    "build:prod:stats": "webpack --profile --config webpack.prod.minimize.config.js --json > stats.json",
     "build:stats": "webpack --profile --json > stats.json",
     "clean": "rimraf build",
     "prepublishOnly": "npm run build",
     "watch": "webpack --watch"
   },
   "resolutions": {
-    "@jupyter/ydoc": "~0.2.4",
-    "@jupyterlab/application": "~3.6.6",
-    "@jupyterlab/application-extension": "~3.6.6",
-    "@jupyterlab/apputils": "~3.6.6",
-    "@jupyterlab/apputils-extension": "~3.6.6",
-    "@jupyterlab/attachments": "~3.6.6",
-    "@jupyterlab/cell-toolbar": "~3.6.6",
-    "@jupyterlab/cell-toolbar-extension": "~3.6.6",
-    "@jupyterlab/cells": "~3.6.6",
-    "@jupyterlab/celltags": "~3.6.6",
-    "@jupyterlab/celltags-extension": "~3.6.6",
-    "@jupyterlab/codeeditor": "~3.6.6",
-    "@jupyterlab/codemirror": "~3.6.6",
-    "@jupyterlab/codemirror-extension": "~3.6.6",
-    "@jupyterlab/collaboration": "~3.6.6",
-    "@jupyterlab/collaboration-extension": "~3.6.6",
-    "@jupyterlab/completer": "~3.6.6",
-    "@jupyterlab/completer-extension": "~3.6.6",
-    "@jupyterlab/console": "~3.6.6",
-    "@jupyterlab/console-extension": "~3.6.6",
-    "@jupyterlab/coreutils": "~5.6.6",
-    "@jupyterlab/csvviewer": "~3.6.6",
-    "@jupyterlab/csvviewer-extension": "~3.6.6",
-    "@jupyterlab/debugger": "~3.6.6",
-    "@jupyterlab/debugger-extension": "~3.6.6",
-    "@jupyterlab/docmanager": "~3.6.6",
-    "@jupyterlab/docmanager-extension": "~3.6.6",
-    "@jupyterlab/docprovider": "~3.6.6",
-    "@jupyterlab/docprovider-extension": "~3.6.6",
-    "@jupyterlab/docregistry": "~3.6.6",
-    "@jupyterlab/documentsearch": "~3.6.6",
-    "@jupyterlab/documentsearch-extension": "~3.6.6",
-    "@jupyterlab/extensionmanager": "~3.6.6",
-    "@jupyterlab/extensionmanager-extension": "~3.6.6",
-    "@jupyterlab/filebrowser": "~3.6.6",
-    "@jupyterlab/filebrowser-extension": "~3.6.6",
-    "@jupyterlab/fileeditor": "~3.6.6",
-    "@jupyterlab/fileeditor-extension": "~3.6.6",
-    "@jupyterlab/help-extension": "~3.6.6",
-    "@jupyterlab/htmlviewer": "~3.6.6",
-    "@jupyterlab/htmlviewer-extension": "~3.6.6",
-    "@jupyterlab/hub-extension": "~3.6.6",
-    "@jupyterlab/imageviewer": "~3.6.6",
-    "@jupyterlab/imageviewer-extension": "~3.6.6",
-    "@jupyterlab/inspector": "~3.6.6",
-    "@jupyterlab/inspector-extension": "~3.6.6",
-    "@jupyterlab/javascript-extension": "~3.6.6",
-    "@jupyterlab/json-extension": "~3.6.6",
-    "@jupyterlab/launcher": "~3.6.6",
-    "@jupyterlab/launcher-extension": "~3.6.6",
-    "@jupyterlab/logconsole": "~3.6.6",
-    "@jupyterlab/logconsole-extension": "~3.6.6",
-    "@jupyterlab/mainmenu": "~3.6.6",
-    "@jupyterlab/mainmenu-extension": "~3.6.6",
-    "@jupyterlab/markdownviewer": "~3.6.6",
-    "@jupyterlab/markdownviewer-extension": "~3.6.6",
-    "@jupyterlab/mathjax2": "~3.6.6",
-    "@jupyterlab/mathjax2-extension": "~3.6.6",
-    "@jupyterlab/metapackage": "~3.6.6",
-    "@jupyterlab/nbconvert-css": "~3.6.6",
-    "@jupyterlab/nbformat": "~3.6.6",
-    "@jupyterlab/notebook": "~3.6.6",
-    "@jupyterlab/notebook-extension": "~3.6.6",
-    "@jupyterlab/observables": "~4.6.6",
-    "@jupyterlab/outputarea": "~3.6.6",
-    "@jupyterlab/pdf-extension": "~3.6.6",
-    "@jupyterlab/property-inspector": "~3.6.6",
-    "@jupyterlab/rendermime": "~3.6.6",
-    "@jupyterlab/rendermime-extension": "~3.6.6",
-    "@jupyterlab/rendermime-interfaces": "~3.6.6",
-    "@jupyterlab/running": "~3.6.6",
-    "@jupyterlab/running-extension": "~3.6.6",
-    "@jupyterlab/services": "../packages/services",
-    "@jupyterlab/settingeditor": "~3.6.6",
-    "@jupyterlab/settingeditor-extension": "~3.6.6",
-    "@jupyterlab/settingregistry": "~3.6.6",
-    "@jupyterlab/shared-models": "~3.6.6",
-    "@jupyterlab/shortcuts-extension": "~3.6.6",
-    "@jupyterlab/statedb": "~3.6.6",
-    "@jupyterlab/statusbar": "~3.6.6",
-    "@jupyterlab/statusbar-extension": "~3.6.6",
-    "@jupyterlab/terminal": "~3.6.6",
-    "@jupyterlab/terminal-extension": "~3.6.6",
-    "@jupyterlab/theme-dark-extension": "~3.6.6",
-    "@jupyterlab/theme-light-extension": "~3.6.6",
-    "@jupyterlab/toc": "~5.6.6",
-    "@jupyterlab/toc-extension": "~5.6.6",
-    "@jupyterlab/tooltip": "~3.6.6",
-    "@jupyterlab/tooltip-extension": "~3.6.6",
-    "@jupyterlab/translation": "~3.6.6",
-    "@jupyterlab/translation-extension": "~3.6.6",
-    "@jupyterlab/ui-components": "~3.6.6",
-    "@jupyterlab/ui-components-extension": "~3.6.6",
-    "@jupyterlab/vdom": "~3.6.6",
-    "@jupyterlab/vdom-extension": "~3.6.6",
-    "@jupyterlab/vega5-extension": "~3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/application": "^1.31.4",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
-    "yjs": "^13.5.17"
+    "@codemirror/language": "^6.0.0",
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "~1.0.2",
+    "@jupyterlab/application": "~4.0.8",
+    "@jupyterlab/application-extension": "~4.0.8",
+    "@jupyterlab/apputils": "~4.1.8",
+    "@jupyterlab/apputils-extension": "~4.0.8",
+    "@jupyterlab/attachments": "~4.0.8",
+    "@jupyterlab/cell-toolbar": "~4.0.8",
+    "@jupyterlab/cell-toolbar-extension": "~4.0.8",
+    "@jupyterlab/cells": "~4.0.8",
+    "@jupyterlab/celltags-extension": "~4.0.8",
+    "@jupyterlab/codeeditor": "~4.0.8",
+    "@jupyterlab/codemirror": "~4.0.8",
+    "@jupyterlab/codemirror-extension": "~4.0.8",
+    "@jupyterlab/completer": "~4.0.8",
+    "@jupyterlab/completer-extension": "~4.0.8",
+    "@jupyterlab/console": "~4.0.8",
+    "@jupyterlab/console-extension": "~4.0.8",
+    "@jupyterlab/coreutils": "~6.0.8",
+    "@jupyterlab/csvviewer": "~4.0.8",
+    "@jupyterlab/csvviewer-extension": "~4.0.8",
+    "@jupyterlab/debugger": "~4.0.8",
+    "@jupyterlab/debugger-extension": "~4.0.8",
+    "@jupyterlab/docmanager": "~4.0.8",
+    "@jupyterlab/docmanager-extension": "~4.0.8",
+    "@jupyterlab/docregistry": "~4.0.8",
+    "@jupyterlab/documentsearch": "~4.0.8",
+    "@jupyterlab/documentsearch-extension": "~4.0.8",
+    "@jupyterlab/extensionmanager": "~4.0.8",
+    "@jupyterlab/extensionmanager-extension": "~4.0.8",
+    "@jupyterlab/filebrowser": "~4.0.8",
+    "@jupyterlab/filebrowser-extension": "~4.0.8",
+    "@jupyterlab/fileeditor": "~4.0.8",
+    "@jupyterlab/fileeditor-extension": "~4.0.8",
+    "@jupyterlab/help-extension": "~4.0.8",
+    "@jupyterlab/htmlviewer": "~4.0.8",
+    "@jupyterlab/htmlviewer-extension": "~4.0.8",
+    "@jupyterlab/hub-extension": "~4.0.8",
+    "@jupyterlab/imageviewer": "~4.0.8",
+    "@jupyterlab/imageviewer-extension": "~4.0.8",
+    "@jupyterlab/inspector": "~4.0.8",
+    "@jupyterlab/inspector-extension": "~4.0.8",
+    "@jupyterlab/javascript-extension": "~4.0.8",
+    "@jupyterlab/json-extension": "~4.0.8",
+    "@jupyterlab/launcher": "~4.0.8",
+    "@jupyterlab/launcher-extension": "~4.0.8",
+    "@jupyterlab/logconsole": "~4.0.8",
+    "@jupyterlab/logconsole-extension": "~4.0.8",
+    "@jupyterlab/lsp": "~4.0.8",
+    "@jupyterlab/lsp-extension": "~4.0.8",
+    "@jupyterlab/mainmenu": "~4.0.8",
+    "@jupyterlab/mainmenu-extension": "~4.0.8",
+    "@jupyterlab/markdownviewer": "~4.0.8",
+    "@jupyterlab/markdownviewer-extension": "~4.0.8",
+    "@jupyterlab/markedparser-extension": "~4.0.8",
+    "@jupyterlab/mathjax-extension": "~4.0.8",
+    "@jupyterlab/metadataform": "~4.0.8",
+    "@jupyterlab/metadataform-extension": "~4.0.8",
+    "@jupyterlab/metapackage": "~4.0.8",
+    "@jupyterlab/nbconvert-css": "~4.0.8",
+    "@jupyterlab/nbformat": "~4.0.8",
+    "@jupyterlab/notebook": "~4.0.8",
+    "@jupyterlab/notebook-extension": "~4.0.8",
+    "@jupyterlab/observables": "~5.0.8",
+    "@jupyterlab/outputarea": "~4.0.8",
+    "@jupyterlab/pdf-extension": "~4.0.8",
+    "@jupyterlab/property-inspector": "~4.0.8",
+    "@jupyterlab/rendermime": "~4.0.8",
+    "@jupyterlab/rendermime-extension": "~4.0.8",
+    "@jupyterlab/rendermime-interfaces": "~3.8.8",
+    "@jupyterlab/running": "~4.0.8",
+    "@jupyterlab/running-extension": "~4.0.8",
+    "@jupyterlab/services": "~7.0.8",
+    "@jupyterlab/settingeditor": "~4.0.8",
+    "@jupyterlab/settingeditor-extension": "~4.0.8",
+    "@jupyterlab/settingregistry": "~4.0.8",
+    "@jupyterlab/shortcuts-extension": "~4.0.8",
+    "@jupyterlab/statedb": "~4.0.8",
+    "@jupyterlab/statusbar": "~4.0.8",
+    "@jupyterlab/statusbar-extension": "~4.0.8",
+    "@jupyterlab/terminal": "~4.0.8",
+    "@jupyterlab/terminal-extension": "~4.0.8",
+    "@jupyterlab/theme-dark-extension": "~4.0.8",
+    "@jupyterlab/theme-light-extension": "~4.0.8",
+    "@jupyterlab/toc": "~6.0.8",
+    "@jupyterlab/toc-extension": "~6.0.8",
+    "@jupyterlab/tooltip": "~4.0.8",
+    "@jupyterlab/tooltip-extension": "~4.0.8",
+    "@jupyterlab/translation": "~4.0.8",
+    "@jupyterlab/translation-extension": "~4.0.8",
+    "@jupyterlab/ui-components": "~4.0.8",
+    "@jupyterlab/ui-components-extension": "~4.0.8",
+    "@jupyterlab/vega5-extension": "~4.0.8",
+    "@lezer/common": "^1.0.0",
+    "@lezer/highlight": "^1.0.0",
+    "@lumino/algorithm": "^2.0.0",
+    "@lumino/application": "^2.0.1",
+    "@lumino/commands": "^2.0.1",
+    "@lumino/coreutils": "^2.0.0",
+    "@lumino/datagrid": "^2.0.1",
+    "@lumino/disposable": "^2.0.0",
+    "@lumino/domutils": "^2.0.0",
+    "@lumino/dragdrop": "^2.0.0",
+    "@lumino/keyboard": "^2.0.0",
+    "@lumino/messaging": "^2.0.0",
+    "@lumino/polling": "^2.0.0",
+    "@lumino/properties": "^2.0.0",
+    "@lumino/signaling": "^2.0.0",
+    "@lumino/virtualdom": "^2.0.0",
+    "@lumino/widgets": "^2.0.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "yjs": "^13.5.40"
   },
   "dependencies": {
-    "@jupyterlab/application": "~3.6.6",
-    "@jupyterlab/application-extension": "~3.6.6",
-    "@jupyterlab/apputils-extension": "~3.6.6",
-    "@jupyterlab/cell-toolbar-extension": "~3.6.6",
-    "@jupyterlab/celltags-extension": "~3.6.6",
-    "@jupyterlab/codemirror-extension": "~3.6.6",
-    "@jupyterlab/collaboration-extension": "~3.6.6",
-    "@jupyterlab/completer-extension": "~3.6.6",
-    "@jupyterlab/console-extension": "~3.6.6",
-    "@jupyterlab/coreutils": "~5.6.6",
-    "@jupyterlab/csvviewer-extension": "~3.6.6",
-    "@jupyterlab/debugger-extension": "~3.6.6",
-    "@jupyterlab/docmanager-extension": "~3.6.6",
-    "@jupyterlab/docprovider-extension": "~3.6.6",
-    "@jupyterlab/documentsearch-extension": "~3.6.6",
-    "@jupyterlab/extensionmanager-extension": "~3.6.6",
-    "@jupyterlab/filebrowser-extension": "~3.6.6",
-    "@jupyterlab/fileeditor-extension": "~3.6.6",
-    "@jupyterlab/help-extension": "~3.6.6",
-    "@jupyterlab/htmlviewer-extension": "~3.6.6",
-    "@jupyterlab/hub-extension": "~3.6.6",
-    "@jupyterlab/imageviewer-extension": "~3.6.6",
-    "@jupyterlab/inspector-extension": "~3.6.6",
-    "@jupyterlab/javascript-extension": "~3.6.6",
-    "@jupyterlab/json-extension": "~3.6.6",
-    "@jupyterlab/launcher-extension": "~3.6.6",
-    "@jupyterlab/logconsole-extension": "~3.6.6",
-    "@jupyterlab/mainmenu-extension": "~3.6.6",
-    "@jupyterlab/markdownviewer-extension": "~3.6.6",
-    "@jupyterlab/mathjax2-extension": "~3.6.6",
-    "@jupyterlab/notebook-extension": "~3.6.6",
-    "@jupyterlab/pdf-extension": "~3.6.6",
-    "@jupyterlab/rendermime-extension": "~3.6.6",
-    "@jupyterlab/running-extension": "~3.6.6",
-    "@jupyterlab/settingeditor-extension": "~3.6.6",
-    "@jupyterlab/shortcuts-extension": "~3.6.6",
-    "@jupyterlab/statusbar-extension": "~3.6.6",
-    "@jupyterlab/terminal-extension": "~3.6.6",
-    "@jupyterlab/theme-dark-extension": "~3.6.6",
-    "@jupyterlab/theme-light-extension": "~3.6.6",
-    "@jupyterlab/toc-extension": "~5.6.6",
-    "@jupyterlab/tooltip-extension": "~3.6.6",
-    "@jupyterlab/translation-extension": "~3.6.6",
-    "@jupyterlab/ui-components-extension": "~3.6.6",
-    "@jupyterlab/vdom-extension": "~3.6.6",
-    "@jupyterlab/vega5-extension": "~3.6.6"
+    "@jupyterlab/application": "~4.0.8",
+    "@jupyterlab/application-extension": "~4.0.8",
+    "@jupyterlab/apputils-extension": "~4.0.8",
+    "@jupyterlab/cell-toolbar-extension": "~4.0.8",
+    "@jupyterlab/celltags-extension": "~4.0.8",
+    "@jupyterlab/codemirror-extension": "~4.0.8",
+    "@jupyterlab/completer-extension": "~4.0.8",
+    "@jupyterlab/console-extension": "~4.0.8",
+    "@jupyterlab/coreutils": "~6.0.8",
+    "@jupyterlab/csvviewer-extension": "~4.0.8",
+    "@jupyterlab/debugger-extension": "~4.0.8",
+    "@jupyterlab/docmanager-extension": "~4.0.8",
+    "@jupyterlab/documentsearch-extension": "~4.0.8",
+    "@jupyterlab/extensionmanager-extension": "~4.0.8",
+    "@jupyterlab/filebrowser-extension": "~4.0.8",
+    "@jupyterlab/fileeditor-extension": "~4.0.8",
+    "@jupyterlab/help-extension": "~4.0.8",
+    "@jupyterlab/htmlviewer-extension": "~4.0.8",
+    "@jupyterlab/hub-extension": "~4.0.8",
+    "@jupyterlab/imageviewer-extension": "~4.0.8",
+    "@jupyterlab/inspector-extension": "~4.0.8",
+    "@jupyterlab/javascript-extension": "~4.0.8",
+    "@jupyterlab/json-extension": "~4.0.8",
+    "@jupyterlab/launcher-extension": "~4.0.8",
+    "@jupyterlab/logconsole-extension": "~4.0.8",
+    "@jupyterlab/lsp-extension": "~4.0.8",
+    "@jupyterlab/mainmenu-extension": "~4.0.8",
+    "@jupyterlab/markdownviewer-extension": "~4.0.8",
+    "@jupyterlab/markedparser-extension": "~4.0.8",
+    "@jupyterlab/mathjax-extension": "~4.0.8",
+    "@jupyterlab/metadataform-extension": "~4.0.8",
+    "@jupyterlab/notebook-extension": "~4.0.8",
+    "@jupyterlab/pdf-extension": "~4.0.8",
+    "@jupyterlab/rendermime-extension": "~4.0.8",
+    "@jupyterlab/running-extension": "~4.0.8",
+    "@jupyterlab/settingeditor-extension": "~4.0.8",
+    "@jupyterlab/shortcuts-extension": "~4.0.8",
+    "@jupyterlab/statusbar-extension": "~4.0.8",
+    "@jupyterlab/terminal-extension": "~4.0.8",
+    "@jupyterlab/theme-dark-extension": "~4.0.8",
+    "@jupyterlab/theme-light-extension": "~4.0.8",
+    "@jupyterlab/toc-extension": "~6.0.8",
+    "@jupyterlab/tooltip-extension": "~4.0.8",
+    "@jupyterlab/translation-extension": "~4.0.8",
+    "@jupyterlab/ui-components-extension": "~4.0.8",
+    "@jupyterlab/vega5-extension": "~4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
-    "@jupyterlab/buildutils": "^3.6.6",
+    "@jupyterlab/builder": "^4.0.8",
+    "@jupyterlab/buildutils": "^4.0.8",
     "chokidar": "^3.4.0",
-    "css-loader": "^5.0.1",
+    "css-loader": "^6.7.1",
     "duplicate-package-checker-webpack-plugin": "^3.0.0",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
     "handlebars": "^4.5.3",
     "html-loader": "~1.3.0",
-    "html-webpack-plugin": "^5.0.0-beta.6",
-    "license-webpack-plugin": "^2.3.14",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "html-webpack-plugin": "^5.5.0",
+    "license-webpack-plugin": "^4.0.2",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "sort-package-json": "~1.44.0",
+    "sort-package-json": "~1.53.1",
     "source-map-loader": "~1.0.2",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "terser-webpack-plugin": "^4.1.0",
-    "url-loader": "~4.1.0",
-    "webpack": "^5.41.1",
-    "webpack-bundle-analyzer": "^3.6.0",
-    "webpack-cli": "^4.1.0",
-    "webpack-merge": "^5.1.2",
+    "style-loader": "~3.3.1",
+    "terser-webpack-plugin": "^5.3.7",
+    "webpack": "^5.76.1",
+    "webpack-bundle-analyzer": "^4.8.0",
+    "webpack-cli": "^5.0.1",
+    "webpack-merge": "^5.8.0",
     "whatwg-fetch": "^3.0.0",
-    "worker-loader": "^3.0.2",
-    "yarn-deduplicate": "^2.1.1"
+    "worker-loader": "^3.0.2"
   },
   "engines": {
-    "node": ">=12.0.0"
+    "node": ">=18.0.0"
   },
   "jupyterlab": {
     "name": "JupyterLab",
-    "version": "3.6.6",
+    "version": "4.0.8",
     "extensions": {
       "@jupyterlab/application-extension": "",
       "@jupyterlab/apputils-extension": "",
       "@jupyterlab/cell-toolbar-extension": "",
       "@jupyterlab/celltags-extension": "",
       "@jupyterlab/codemirror-extension": "",
-      "@jupyterlab/collaboration-extension": "",
       "@jupyterlab/completer-extension": "",
       "@jupyterlab/console-extension": "",
       "@jupyterlab/csvviewer-extension": "",
       "@jupyterlab/debugger-extension": "",
       "@jupyterlab/docmanager-extension": "",
-      "@jupyterlab/docprovider-extension": "",
       "@jupyterlab/documentsearch-extension": "",
       "@jupyterlab/extensionmanager-extension": "",
       "@jupyterlab/filebrowser-extension": "",
@@ -236,9 +235,12 @@
       "@jupyterlab/inspector-extension": "",
       "@jupyterlab/launcher-extension": "",
       "@jupyterlab/logconsole-extension": "",
+      "@jupyterlab/lsp-extension": "",
       "@jupyterlab/mainmenu-extension": "",
       "@jupyterlab/markdownviewer-extension": "",
-      "@jupyterlab/mathjax2-extension": "",
+      "@jupyterlab/markedparser-extension": "",
+      "@jupyterlab/mathjax-extension": "",
+      "@jupyterlab/metadataform-extension": "",
       "@jupyterlab/notebook-extension": "",
       "@jupyterlab/rendermime-extension": "",
       "@jupyterlab/running-extension": "",
@@ -251,8 +253,7 @@
       "@jupyterlab/toc-extension": "",
       "@jupyterlab/tooltip-extension": "",
       "@jupyterlab/translation-extension": "",
-      "@jupyterlab/ui-components-extension": "",
-      "@jupyterlab/vdom-extension": ""
+      "@jupyterlab/ui-components-extension": ""
     },
     "mimeExtensions": {
       "@jupyterlab/javascript-extension": "",
@@ -260,40 +261,42 @@
       "@jupyterlab/pdf-extension": "",
       "@jupyterlab/vega5-extension": ""
     },
-    "externalExtensions": {},
     "buildDir": "./static",
     "outputDir": ".",
     "singletonPackages": [
+      "@codemirror/language",
+      "@codemirror/state",
+      "@codemirror/view",
       "@jupyter/ydoc",
       "@jupyterlab/application",
       "@jupyterlab/apputils",
       "@jupyterlab/cell-toolbar",
       "@jupyterlab/codeeditor",
       "@jupyterlab/codemirror",
-      "@jupyterlab/collaboration",
       "@jupyterlab/completer",
       "@jupyterlab/console",
       "@jupyterlab/coreutils",
       "@jupyterlab/debugger",
       "@jupyterlab/docmanager",
-      "@jupyterlab/docprovider",
       "@jupyterlab/documentsearch",
       "@jupyterlab/extensionmanager",
       "@jupyterlab/filebrowser",
       "@jupyterlab/fileeditor",
+      "@jupyterlab/htmlviewer",
       "@jupyterlab/imageviewer",
       "@jupyterlab/inspector",
       "@jupyterlab/launcher",
       "@jupyterlab/logconsole",
+      "@jupyterlab/lsp",
       "@jupyterlab/mainmenu",
       "@jupyterlab/markdownviewer",
+      "@jupyterlab/metadataform",
       "@jupyterlab/notebook",
       "@jupyterlab/rendermime",
       "@jupyterlab/rendermime-interfaces",
       "@jupyterlab/services",
       "@jupyterlab/settingeditor",
       "@jupyterlab/settingregistry",
-      "@jupyterlab/shared-models",
       "@jupyterlab/statedb",
       "@jupyterlab/statusbar",
       "@jupyterlab/terminal",
@@ -301,14 +304,19 @@
       "@jupyterlab/tooltip",
       "@jupyterlab/translation",
       "@jupyterlab/ui-components",
+      "@lezer/common",
+      "@lezer/highlight",
       "@lumino/algorithm",
       "@lumino/application",
       "@lumino/commands",
       "@lumino/coreutils",
+      "@lumino/datagrid",
       "@lumino/disposable",
       "@lumino/domutils",
       "@lumino/dragdrop",
+      "@lumino/keyboard",
       "@lumino/messaging",
+      "@lumino/polling",
       "@lumino/properties",
       "@lumino/signaling",
       "@lumino/virtualdom",
@@ -326,13 +334,10 @@
       "@jupyterlab/cell-toolbar": "../packages/cell-toolbar",
       "@jupyterlab/cell-toolbar-extension": "../packages/cell-toolbar-extension",
       "@jupyterlab/cells": "../packages/cells",
-      "@jupyterlab/celltags": "../packages/celltags",
       "@jupyterlab/celltags-extension": "../packages/celltags-extension",
       "@jupyterlab/codeeditor": "../packages/codeeditor",
       "@jupyterlab/codemirror": "../packages/codemirror",
       "@jupyterlab/codemirror-extension": "../packages/codemirror-extension",
-      "@jupyterlab/collaboration": "../packages/collaboration",
-      "@jupyterlab/collaboration-extension": "../packages/collaboration-extension",
       "@jupyterlab/completer": "../packages/completer",
       "@jupyterlab/completer-extension": "../packages/completer-extension",
       "@jupyterlab/console": "../packages/console",
@@ -344,8 +349,6 @@
       "@jupyterlab/debugger-extension": "../packages/debugger-extension",
       "@jupyterlab/docmanager": "../packages/docmanager",
       "@jupyterlab/docmanager-extension": "../packages/docmanager-extension",
-      "@jupyterlab/docprovider": "../packages/docprovider",
-      "@jupyterlab/docprovider-extension": "../packages/docprovider-extension",
       "@jupyterlab/docregistry": "../packages/docregistry",
       "@jupyterlab/documentsearch": "../packages/documentsearch",
       "@jupyterlab/documentsearch-extension": "../packages/documentsearch-extension",
@@ -369,12 +372,16 @@
       "@jupyterlab/launcher-extension": "../packages/launcher-extension",
       "@jupyterlab/logconsole": "../packages/logconsole",
       "@jupyterlab/logconsole-extension": "../packages/logconsole-extension",
+      "@jupyterlab/lsp": "../packages/lsp",
+      "@jupyterlab/lsp-extension": "../packages/lsp-extension",
       "@jupyterlab/mainmenu": "../packages/mainmenu",
       "@jupyterlab/mainmenu-extension": "../packages/mainmenu-extension",
       "@jupyterlab/markdownviewer": "../packages/markdownviewer",
       "@jupyterlab/markdownviewer-extension": "../packages/markdownviewer-extension",
-      "@jupyterlab/mathjax2": "../packages/mathjax2",
-      "@jupyterlab/mathjax2-extension": "../packages/mathjax2-extension",
+      "@jupyterlab/markedparser-extension": "../packages/markedparser-extension",
+      "@jupyterlab/mathjax-extension": "../packages/mathjax-extension",
+      "@jupyterlab/metadataform": "../packages/metadataform",
+      "@jupyterlab/metadataform-extension": "../packages/metadataform-extension",
       "@jupyterlab/metapackage": "../packages/metapackage",
       "@jupyterlab/nbconvert-css": "../packages/nbconvert-css",
       "@jupyterlab/nbformat": "../packages/nbformat",
@@ -393,13 +400,13 @@
       "@jupyterlab/settingeditor": "../packages/settingeditor",
       "@jupyterlab/settingeditor-extension": "../packages/settingeditor-extension",
       "@jupyterlab/settingregistry": "../packages/settingregistry",
-      "@jupyterlab/shared-models": "../packages/shared-models",
       "@jupyterlab/shortcuts-extension": "../packages/shortcuts-extension",
       "@jupyterlab/statedb": "../packages/statedb",
       "@jupyterlab/statusbar": "../packages/statusbar",
       "@jupyterlab/statusbar-extension": "../packages/statusbar-extension",
       "@jupyterlab/terminal": "../packages/terminal",
       "@jupyterlab/terminal-extension": "../packages/terminal-extension",
+      "@jupyterlab/testing": "../packages/testing",
       "@jupyterlab/theme-dark-extension": "../packages/theme-dark-extension",
       "@jupyterlab/theme-light-extension": "../packages/theme-light-extension",
       "@jupyterlab/toc": "../packages/toc",
@@ -410,8 +417,6 @@
       "@jupyterlab/translation-extension": "../packages/translation-extension",
       "@jupyterlab/ui-components": "../packages/ui-components",
       "@jupyterlab/ui-components-extension": "../packages/ui-components-extension",
-      "@jupyterlab/vdom": "../packages/vdom",
-      "@jupyterlab/vdom-extension": "../packages/vdom-extension",
       "@jupyterlab/vega5-extension": "../packages/vega5-extension",
       "@jupyterlab/builder": "../builder",
       "@jupyterlab/buildutils": "../buildutils",
diff --git a/dev_mode/style.js b/dev_mode/style.js
index b5fcc2e9cd3a..5897e2729046 100644
--- a/dev_mode/style.js
+++ b/dev_mode/style.js
@@ -12,7 +12,6 @@ import '@jupyterlab/console-extension/style/index.js';
 import '@jupyterlab/csvviewer-extension/style/index.js';
 import '@jupyterlab/debugger-extension/style/index.js';
 import '@jupyterlab/docmanager-extension/style/index.js';
-import '@jupyterlab/docprovider-extension/style/index.js';
 import '@jupyterlab/documentsearch-extension/style/index.js';
 import '@jupyterlab/extensionmanager-extension/style/index.js';
 import '@jupyterlab/filebrowser-extension/style/index.js';
@@ -26,9 +25,12 @@ import '@jupyterlab/javascript-extension/style/index.js';
 import '@jupyterlab/json-extension/style/index.js';
 import '@jupyterlab/launcher-extension/style/index.js';
 import '@jupyterlab/logconsole-extension/style/index.js';
+import '@jupyterlab/lsp-extension/style/index.js';
 import '@jupyterlab/mainmenu-extension/style/index.js';
 import '@jupyterlab/markdownviewer-extension/style/index.js';
-import '@jupyterlab/mathjax2-extension/style/index.js';
+import '@jupyterlab/markedparser-extension/style/index.js';
+import '@jupyterlab/mathjax-extension/style/index.js';
+import '@jupyterlab/metadataform-extension/style/index.js';
 import '@jupyterlab/notebook-extension/style/index.js';
 import '@jupyterlab/pdf-extension/style/index.js';
 import '@jupyterlab/rendermime-extension/style/index.js';
@@ -41,5 +43,4 @@ import '@jupyterlab/toc-extension/style/index.js';
 import '@jupyterlab/tooltip-extension/style/index.js';
 import '@jupyterlab/translation-extension/style/index.js';
 import '@jupyterlab/ui-components-extension/style/index.js';
-import '@jupyterlab/vdom-extension/style/index.js';
 import '@jupyterlab/vega5-extension/style/index.js';
diff --git a/dev_mode/templates/403.html b/dev_mode/templates/403.html
index 315515710e72..34a495a1a308 100644
--- a/dev_mode/templates/403.html
+++ b/dev_mode/templates/403.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
diff --git a/dev_mode/templates/partial.html b/dev_mode/templates/partial.html
index a3f368eaea74..3c44af54c52b 100644
--- a/dev_mode/templates/partial.html
+++ b/dev_mode/templates/partial.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 {# Copy so we do not modify the page_config with updates. #}
 {% set page_config_full = page_config.copy() %}
 
diff --git a/dev_mode/templates/template.html b/dev_mode/templates/template.html
index 167557d4fdda..6d17d790004d 100644
--- a/dev_mode/templates/template.html
+++ b/dev_mode/templates/template.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!doctype html>
 <html lang="en">
 <head>
diff --git a/dev_mode/webpack.config.js b/dev_mode/webpack.config.js
index 5584aa2ab96c..4beb160bb68d 100644
--- a/dev_mode/webpack.config.js
+++ b/dev_mode/webpack.config.js
@@ -1,7 +1,7 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 const path = require('path');
 const fs = require('fs-extra');
@@ -9,8 +9,8 @@ const Handlebars = require('handlebars');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 const webpack = require('webpack');
 const merge = require('webpack-merge').default;
-const BundleAnalyzerPlugin = require('webpack-bundle-analyzer')
-  .BundleAnalyzerPlugin;
+const BundleAnalyzerPlugin =
+  require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 const baseConfig = require('@jupyterlab/builder/lib/webpack.config.base');
 const { ModuleFederationPlugin } = webpack.container;
 
@@ -20,21 +20,7 @@ const packageData = require('./package.json');
 
 // Handle the extensions.
 const jlab = packageData.jupyterlab;
-const { extensions, mimeExtensions, externalExtensions } = jlab;
-
-// Add external extensions to the extensions/mimeExtensions data as
-// appropriate
-for (const pkg in externalExtensions) {
-  const {
-    jupyterlab: { extension, mimeExtension }
-  } = require(`${pkg}/package.json`);
-  if (extension !== undefined) {
-    extensions[pkg] = extension === true ? '' : extension;
-  }
-  if (mimeExtension !== undefined) {
-    mimeExtensions[pkg] = mimeExtension === true ? '' : mimeExtension;
-  }
-}
+const { extensions, mimeExtensions } = jlab;
 
 // Deduplicated list of extension package names.
 const extensionPackages = [
@@ -299,15 +285,14 @@ module.exports = [
     output: {
       path: path.resolve(buildDir),
       publicPath: '{{page_config.fullStaticUrl}}/',
-      filename: '[name].[contenthash].js',
-      hashFunction: 'sha256'
+      filename: '[name].[contenthash].js'
     },
     optimization: {
       splitChunks: {
         chunks: 'all',
         cacheGroups: {
           jlab_core: {
-            test: /[\\/]node_modules[\\/]@(jupyterlab|lumino)[\\/]/,
+            test: /[\\/]node_modules[\\/]@(jupyterlab|lumino(?!\/datagrid))[\\/]/,
             name: 'jlab_core'
           }
         }
@@ -324,7 +309,7 @@ module.exports = [
       ]
     },
     devtool: 'inline-source-map',
-    externals: ['node-fetch', 'ws'],
+    externals: ['ws'],
     plugins
   })
 ].concat(extensionAssetConfig);
diff --git a/dev_mode/webpack.prod.config.js b/dev_mode/webpack.prod.config.js
index a6b08a71b569..025b532242b8 100644
--- a/dev_mode/webpack.prod.config.js
+++ b/dev_mode/webpack.prod.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const merge = require('webpack-merge').default;
 const config = require('./webpack.config');
 const WPPlugin = require('@jupyterlab/builder').WPPlugin;
diff --git a/dev_mode/webpack.prod.minimize.config.js b/dev_mode/webpack.prod.minimize.config.js
index b107e5384031..0356d9b7b811 100644
--- a/dev_mode/webpack.prod.minimize.config.js
+++ b/dev_mode/webpack.prod.minimize.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const TerserPlugin = require('terser-webpack-plugin');
 const merge = require('webpack-merge').default;
 const WPPlugin = require('@jupyterlab/builder').WPPlugin;
@@ -16,7 +21,6 @@ config[0] = merge(config[0], {
     minimizer: [
       new TerserPlugin({
         parallel: true,
-        sourceMap: true,
         terserOptions: {
           compress: false,
           ecma: 6,
@@ -26,8 +30,7 @@ config[0] = merge(config[0], {
             comments: false
           },
           safari10: true
-        },
-        cache: process.platform !== 'win32'
+        }
       })
     ]
   },
diff --git a/dev_mode/webpack.prod.release.config.js b/dev_mode/webpack.prod.release.config.js
index 1b31286b7bc0..f48a3e70c403 100644
--- a/dev_mode/webpack.prod.release.config.js
+++ b/dev_mode/webpack.prod.release.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const merge = require('webpack-merge').default;
 const config = require('./webpack.prod.minimize.config');
 
diff --git a/docs/Makefile b/docs/Makefile
index 8d7f39c85afa..b02d18832b5e 100644
--- a/docs/Makefile
+++ b/docs/Makefile
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 # Minimal makefile for Sphinx documentation
 #
 
@@ -21,5 +24,5 @@ help:
 
 clean:
 	# clean api build as well
-	-rm -rf "$(SOURCEDIR)/../api"
+	-rm -rf "$(SOURCEDIR)/api"
 	@$(SPHINXBUILD) -M clean "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/docs/environment.yml b/docs/environment.yml
deleted file mode 100644
index a3d79cb39de5..000000000000
--- a/docs/environment.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-
-name: jupyterlab_documentation
-channels:
-  - conda-forge
-dependencies:
-- python=3.8
-- sphinx>=1.8
-- sphinx-copybutton
-- sphinx_rtd_theme
-- pytest
-- pytest-tornasync
-- pytest-check-links
-- pip
-- nodejs=18
-- jsx-lexer
-- myst-parser
diff --git a/docs/make.bat b/docs/make.bat
index 6814d9f111ef..786206f0cd66 100644
--- a/docs/make.bat
+++ b/docs/make.bat
@@ -1,3 +1,6 @@
+rem Copyright (c) Jupyter Development Team.
+rem Distributed under the terms of the Modified BSD License.
+
 @ECHO OFF
 
 pushd %~dp0
diff --git a/docs/scripts/graph-dependencies.js b/docs/scripts/graph-dependencies.js
deleted file mode 100644
index 3fae9bd9ac9e..000000000000
--- a/docs/scripts/graph-dependencies.js
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * This script generates a transitive reduction of the dependency graph among
- * jupyterlab packages using the graphviz library. It works from package.json
- * dependencies, so does not capture the nuances of how plugins depend on each
- * other, such as optional dependencies. Still, it can be useful to have a way
- * to generate such a graph to get an idea of how packages depend on other
- * packages.
- *
- * You must have graphviz installed to run this script. Run from the docs
- * directory:
- *
- * % node scripts/graph-dependencies.js
- */
-
-const childProcess = require('child_process');
-const fs = require('fs-extra');
-const glob = require('glob');
-const path = require('path');
-const url = require('url');
-
-const basePath = path.resolve('..');
-const baseUrl = 'https://github.com/jupyterlab/jupyterlab/tree/master/packages';
-const packages = glob.sync(path.join(basePath, 'packages/*'));
-
-// Begin the graph specification
-let text = ['digraph G {', 'node [shape=box];'];
-
-packages.forEach(function (packagePath) {
-  // Load the package.json data.
-  const dataPath = path.join(packagePath, 'package.json');
-  let data;
-  try {
-    data = require(dataPath);
-  } catch (e) {
-    return;
-  }
-
-  const name = data.name ?? 'UNKNOWN';
-
-  // Don't include private packages.
-  if (data.private === true) {
-    return;
-  }
-
-  // Only include packages in the @jupyterlab namespace.
-  if (!name.startsWith('@jupyterlab')) {
-    return;
-  }
-
-  // In order to cut down on the number of graph nodes,
-  // don't include "*-extension" packages.
-  if (name.endsWith('-extension')) {
-    return;
-  }
-
-  // Don't include the metapackage.
-  if (name === '@jupyterlab/metapackage') {
-    return;
-  }
-
-  const shortName = name.split('/')[1];
-  const urlLink = url.resolve(
-    baseUrl,
-    'packages/' + path.basename(packagePath)
-  );
-
-  // Remove the '@jupyterlab' part of the name.
-  text.push(`"${shortName}" [URL="${urlLink}"];\n`);
-
-  const deps = data.dependencies ?? [];
-  for (let dep in deps) {
-    // Only include JupyterLab dependencies
-    if (dep.startsWith('@jupyterlab')) {
-      text.push(`"${shortName}" -> "${dep.split('/')[1]}";\n`);
-    }
-  }
-});
-
-text.push('}');
-
-fs.writeFileSync('./dependencies.gv', text.join('\n'));
-childProcess.execSync(
-  'cat dependencies.gv | tred | dot -Tsvg -o dependency-graph.svg'
-);
-fs.unlinkSync('./dependencies.gv');
diff --git a/docs/source/_static/css/custom.css b/docs/source/_static/css/custom.css
index ef54a5a6d812..7b1665fb9f90 100644
--- a/docs/source/_static/css/custom.css
+++ b/docs/source/_static/css/custom.css
@@ -1,22 +1,31 @@
-h4 {
-  font-size: 100%;
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/* stylelint-disable selector-max-type */
+
+/* Navbar at the top */
+.jupyter-nav-logo {
+  padding: 0;
 }
 
-.wy-nav-side p.caption {
-  color: #f5f5f5;
+.jupyter-nav-logo img {
+  width: 30px;
 }
 
-div.wy-side-nav-search {
-  background: #f37626;
+.navbar-brand {
+  padding: 0.6em;
 }
 
-.wy-nav-content iframe {
-  margin: auto;
-  display: block;
+/* Save some space by making this just long enough for the text */
+nav.navbar form.bd-search {
+  width: 14em;
 }
 
-.wy-breadcrumbs-aside img {
-  height: 1em !important;
+/* Text on page */
+h4 {
+  font-size: 100%;
 }
 
 /* Elevation
@@ -27,38 +36,45 @@ div.wy-side-nav-search {
   * https://material-components-web.appspot.com/elevation.html
   */
 
-.rst-content img.jp-screenshot {
+main img.jp-screenshot {
   border: none;
+
   /* MD Elevation 8 */
-  box-shadow: 0px 5px 5px -3px rgba(0, 0, 0, 0.2),
-    0px 8px 10px 1px rgba(145, 145, 145, 0.14),
-    0px 3px 14px 2px rgba(0, 0, 0, 0.12);
+  box-shadow:
+    0 5px 5px -3px rgba(0, 0, 0, 0.2),
+    0 8px 10px 1px rgba(145, 145, 145, 0.14),
+    0 3px 14px 2px rgba(0, 0, 0, 0.12);
   margin-bottom: 24px;
 }
 
-/* 
+/*
  * The div.jp-youtube-video styling is done to get the YouTube video to size dynamically
  * to 100% of the content width.
  */
 
-.rst-content div.jp-youtube-video {
+main div.jp-youtube-video {
   position: relative;
   width: 100%;
-  height: 0px;
+  height: 0;
+
   /* This must be equal to the inverse of the aspect ratio of the video */
+
   /* The current value is: 56.25% = 315/560 */
   padding-bottom: 56.25%;
   border: none;
+
   /* MD Elevation 8 */
-  box-shadow: 0px 5px 5px -3px rgba(0, 0, 0, 0.2),
-    0px 8px 10px 1px rgba(0, 0, 0, 0.14), 0px 3px 14px 2px rgba(0, 0, 0, 0.12);
+  box-shadow:
+    0 5px 5px -3px rgba(0, 0, 0, 0.2),
+    0 8px 10px 1px rgba(0, 0, 0, 0.14),
+    0 3px 14px 2px rgba(0, 0, 0, 0.12);
   margin-bottom: 24px;
 }
 
-.rst-content div.jp-youtube-video iframe {
+main div.jp-youtube-video iframe {
   position: absolute;
-  left: 0px;
-  top: 0px;
+  left: 0;
+  top: 0;
   width: 100%;
   height: 100%;
 }
diff --git a/docs/source/_static/logo-icon.png b/docs/source/_static/logo-icon.png
new file mode 100644
index 000000000000..a65b84f94cfb
Binary files /dev/null and b/docs/source/_static/logo-icon.png differ
diff --git a/docs/source/_static/logo-rectangle-dark.svg b/docs/source/_static/logo-rectangle-dark.svg
new file mode 100644
index 000000000000..d3e4b7eb50a1
--- /dev/null
+++ b/docs/source/_static/logo-rectangle-dark.svg
@@ -0,0 +1,15 @@
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diff --git a/docs/source/_static/logo-rectangle.svg b/docs/source/_static/logo-rectangle.svg
new file mode 100644
index 000000000000..e021cad426b2
--- /dev/null
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+<path d="M33.3388 17.3655C46.4225 17.3655 57.8488 22.1597 63.78 29.2556C61.571 22.8883 57.454 17.371 51.999 13.4673C46.5438 9.5636 40.0205 7.46663 33.3316 7.46663C26.6428 7.46663 20.1195 9.5636 14.6643 13.4673C9.20923 17.371 5.09228 22.8883 2.8833 29.2556C8.82905 22.1743 20.2553 17.3655 33.3388 17.3655Z" fill="#F37726"/>
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+</svg>
diff --git a/docs/source/_static/switcher.json b/docs/source/_static/switcher.json
new file mode 100644
index 000000000000..7d4bcf28267e
--- /dev/null
+++ b/docs/source/_static/switcher.json
@@ -0,0 +1,57 @@
+[
+  {
+    "name": "latest",
+    "version": "latest",
+    "url": "https://jupyterlab.readthedocs.io/en/latest/"
+  },
+  {
+    "name": "stable",
+    "version": "stable",
+    "url": "https://jupyterlab.readthedocs.io/en/stable/"
+  },
+  {
+    "name": "3.6.x",
+    "version": "3.6.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.6.x/"
+  },
+  {
+    "name": "3.5.x",
+    "version": "3.5.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.5.x/"
+  },
+  {
+    "name": "3.4.x",
+    "version": "3.4.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.4.x/"
+  },
+  {
+    "name": "3.3.x",
+    "version": "3.3.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.3.x/"
+  },
+  {
+    "name": "3.2.x",
+    "version": "3.2.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.2.x/"
+  },
+  {
+    "name": "3.1.x",
+    "version": "3.1.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.1.x/"
+  },
+  {
+    "name": "3.0.x",
+    "version": "3.0.x",
+    "url": "https://jupyterlab.readthedocs.io/en/3.0.x/"
+  },
+  {
+    "name": "2.2.x",
+    "version": "2.2.x",
+    "url": "https://jupyterlab.readthedocs.io/en/2.2.x/"
+  },
+  {
+    "name": "1.2.x",
+    "version": "1.2.x",
+    "url": "https://jupyterlab.readthedocs.io/en/1.2.x/"
+  }
+]
diff --git a/docs/source/_templates/breadcrumbs.html b/docs/source/_templates/breadcrumbs.html
deleted file mode 100644
index 6bb97b377742..000000000000
--- a/docs/source/_templates/breadcrumbs.html
+++ /dev/null
@@ -1,49 +0,0 @@
-{% extends '!breadcrumbs.html' %}
-
-{% block breadcrumbs %}
-  <li><a href="{{ pathto(master_doc) }}">{{ _('Docs') }}</a> &raquo;</li>
-    {% for doc in parents %}
-      <li><a href="{{ doc.link|e }}">{{ doc.title }}</a> &raquo;</li>
-    {% endfor %}
-  <li>{{ title }}</li>
-{% endblock %}
-  {% block breadcrumbs_aside %}
-    <li class="wy-breadcrumbs-aside">
-    {% if hasdoc(pagename) %}
-      {% if display_github %}
-      {% if check_meta and 'github_url' in meta %}
-        <!-- User defined GitHub URL -->
-        <a href="{{ meta['github_url'] }}" class="fa fa-github"> {{ _('Edit on GitHub') }}</a>
-      {% else %}
-        <a href="https://{{ github_host|default("github.com") }}/{{ github_user }}/{{ github_repo }}/{{ theme_vcs_pageview_mode or "blob" }}/{{ github_version | replace("origin/", "") }}{{ conf_py_path }}{{ pagename }}{{ page_source_suffix }}" class="fa fa-github"> {{ _('Edit on GitHub') }}</a>
-      {% endif %}
-      {% elif display_bitbucket %}
-      {% if check_meta and 'bitbucket_url' in meta %}
-        <!-- User defined Bitbucket URL -->
-        <a href="{{ meta['bitbucket_url'] }}" class="fa fa-bitbucket"> {{ _('Edit on Bitbucket') }}</a>
-      {% else %}
-        <a href="https://bitbucket.org/{{ bitbucket_user }}/{{ bitbucket_repo }}/src/{{ bitbucket_version}}{{ conf_py_path }}{{ pagename }}{{ page_source_suffix }}?mode={{ theme_vcs_pageview_mode or "view" }}" class="fa fa-bitbucket"> {{ _('Edit on Bitbucket') }}</a>
-      {% endif %}
-      {% elif display_gitlab %}
-      {% if check_meta and 'gitlab_url' in meta %}
-        <!-- User defined GitLab URL -->
-        <a href="{{ meta['gitlab_url'] }}" class="fa fa-gitlab"> {{ _('Edit on GitLab') }}</a>
-      {% else %}
-        <a href="https://{{ gitlab_host|default("gitlab.com") }}/{{ gitlab_user }}/{{ gitlab_repo }}/{{ theme_vcs_pageview_mode or "blob" }}/{{ gitlab_version }}{{ conf_py_path }}{{ pagename }}{{ page_source_suffix }}" class="fa fa-gitlab"> {{ _('Edit on GitLab') }}</a>
-      {% endif %}
-      {% elif show_source and source_url_prefix %}
-      <a href="{{ source_url_prefix }}{{ pagename }}{{ page_source_suffix }}">{{ _('View page source') }}</a>
-      {% elif show_source and has_source and sourcename %}
-      <a href="{{ pathto('_sources/' + sourcename, true)|e }}" rel="nofollow"> {{ _('View page source') }}</a>
-      {% endif %}
-    {% endif %}
-    </li>
-    <li class="wy-breadcrumbs-aside">
-      <a href="https://jupyter.org/documentation">
-        <img src="{{ pathto('_static/jupyter_logo.svg', 1) }}"></img>
-        {{ _('Jupyter') }}
-      </a>
-      &vert;
-      &nbsp;
-    </li>
-{% endblock %}
diff --git a/docs/source/_templates/copyright.html b/docs/source/_templates/copyright.html
new file mode 100644
index 000000000000..5f2bd71d5bf2
--- /dev/null
+++ b/docs/source/_templates/copyright.html
@@ -0,0 +1,36 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
+<div role="contentinfo">
+  <p>
+  {%- if show_copyright %}
+    {%- if hasdoc('copyright') %}
+      {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
+    {%- else %}
+      {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.<br/>
+      The Jupyter Trademark is registered with the U.S. Patent &amp Trademark Office.
+      {% endtrans %}
+    {%- endif %}
+  {%- endif %}
+
+  {%- if build_id and build_url %}
+    {% trans build_url=build_url, build_id=build_id %}
+      <span class="build">
+        Build
+        <a href="{{ build_url }}">{{ build_id }}</a>.
+      </span>
+    {% endtrans %}
+  {%- elif commit %}
+    {% trans commit=commit %}
+      <span class="commit">
+        Revision <code>{{ commit }}</code>.
+      </span>
+    {% endtrans %}
+  {%- elif last_updated %}
+    {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
+  {%- endif %}
+
+  </p>
+</div>
diff --git a/docs/source/_templates/footer.html b/docs/source/_templates/footer.html
deleted file mode 100644
index b91bf2705e11..000000000000
--- a/docs/source/_templates/footer.html
+++ /dev/null
@@ -1,54 +0,0 @@
-<footer>
-  {% if (theme_prev_next_buttons_location == 'bottom' or theme_prev_next_buttons_location == 'both') and (next or prev) %}
-    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
-      {% if next %}
-        <a href="{{ next.link|e }}" class="btn btn-neutral float-right" title="{{ next.title|striptags|e }}" accesskey="n" rel="next">{{ _('Next') }} <span class="fa fa-arrow-circle-right"></span></a>
-      {% endif %}
-      {% if prev %}
-        <a href="{{ prev.link|e }}" class="btn btn-neutral" title="{{ prev.title|striptags|e }}" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> {{ _('Previous') }}</a>
-      {% endif %}
-    </div>
-  {% endif %}
-
-  <hr/>
-
-  <div role="contentinfo">
-    <p>
-    {%- if show_copyright %}
-      {%- if hasdoc('copyright') %}
-        {% trans path=pathto('copyright'), copyright=copyright|e %}&copy; <a href="{{ path }}">Copyright</a> {{ copyright }}.{% endtrans %}
-      {%- else %}
-        {% trans copyright=copyright|e %}&copy; Copyright {{ copyright }}.<br/>
-        The Jupyter Trademark is registered with the U.S. Patent &amp Trademark Office.
-        {% endtrans %}
-      {%- endif %}
-    {%- endif %}
-
-    {%- if build_id and build_url %}
-      {% trans build_url=build_url, build_id=build_id %}
-        <span class="build">
-          Build
-          <a href="{{ build_url }}">{{ build_id }}</a>.
-        </span>
-      {% endtrans %}
-    {%- elif commit %}
-      {% trans commit=commit %}
-        <span class="commit">
-          Revision <code>{{ commit }}</code>.
-        </span>
-      {% endtrans %}
-    {%- elif last_updated %}
-      {% trans last_updated=last_updated|e %}Last updated on {{ last_updated }}.{% endtrans %}
-    {%- endif %}
-
-    </p>
-  </div>
-
-  {%- if show_sphinx %}
-  {% trans %}Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/snide/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>{% endtrans %}.
-  {%- endif %}
-
-  {%- block extrafooter %} {% endblock %}
-
-</footer>
-
diff --git a/docs/source/conf.py b/docs/source/conf.py
index b5b56807fbc3..74b9ced12d62 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 #
 # JupyterLab documentation build configuration file, created by
 # sphinx-quickstart on Thu Jan  4 15:10:23 2018.
@@ -21,12 +23,17 @@
 # import sys
 # sys.path.insert(0, os.path.abspath('.'))
 
+import json
 import os
-import os.path as osp
 import shutil
+import time
+from collections import ChainMap
+from functools import partial
+from pathlib import Path
 from subprocess import check_call
+from typing import List
 
-HERE = osp.abspath(osp.dirname(__file__))
+HERE = Path(__file__).parent.resolve()
 
 # -- General configuration ------------------------------------------------
 
@@ -37,7 +44,12 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = ["myst_parser", "sphinx.ext.intersphinx", "sphinx.ext.mathjax", "sphinx_copybutton"]
+extensions = [
+    "myst_parser",
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.mathjax",
+    "sphinx_copybutton",
+]
 
 myst_enable_extensions = ["html_image"]
 myst_heading_anchors = 3
@@ -55,7 +67,7 @@
 
 # General information about the project.
 project = "JupyterLab"
-copyright = "2018, Project Jupyter"
+copyright = f"2018-{time.localtime().tm_year}, Project Jupyter"  # noqa
 author = "Project Jupyter"
 
 
@@ -63,14 +75,13 @@
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 
-_version_py = osp.join(HERE, "..", "..", "jupyterlab", "_version.py")
+_version_py = HERE.parent.parent / "jupyterlab" / "_version.py"
 version_ns = {}
 
-with open(_version_py, mode="r") as version_file:
-    exec(version_file.read(), version_ns)
+exec(_version_py.read_text(), version_ns)  # noqa
 
 # The short X.Y version.
-version = "%i.%i" % version_ns["version_info"][:2]
+version = "{0:d}.{1:d}".format(*version_ns["version_info"])  # noqa
 # The full version, including alpha/beta/rc tags.
 release = version_ns["__version__"]
 
@@ -79,8 +90,10 @@
 # for a list of supported languages.
 #
 # This is also used if you do content translation via gettext catalogs.
-# Usually you set "language" from the command line for these cases.
-language = "en"
+language = "en"  # Must be set from the command line to generate various languages
+
+locale_dirs = ["locale/"]
+gettext_compact = False
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
@@ -92,31 +105,29 @@
 
 
 # build js docs and stage them to the build directory
-def build_api_docs(out_dir):
+def build_api_docs(out_dir: Path):
     """build js api docs"""
-    docs = osp.join(HERE, os.pardir)
-    root = osp.join(docs, os.pardir)
-    docs_api = osp.join(docs, "api")
-    api_index = osp.join(docs_api, "index.html")
+    docs = HERE.parent
+    root = docs.parent
+    docs_api = docs / "source" / "api"
+    api_index = docs_api / "index.html"
     # is this an okay way to specify jlpm
     # without installing jupyterlab first?
-    jlpm = ["node", osp.join(root, "jupyterlab", "staging", "yarn.js")]
+    jlpm = ["node", str(root / "jupyterlab" / "staging" / "yarn.js")]
 
-    if osp.exists(api_index):
+    if api_index.exists():
         # avoid rebuilding docs because it takes forever
         # `make clean` to force a rebuild
-        print(f"already have {api_index}")
+        pass
     else:
-        print("Building jupyterlab API docs")
-        check_call(jlpm, cwd=root)
-        check_call(jlpm + ["build:packages"], cwd=root)
-        check_call(jlpm + ["docs"], cwd=root)
+        check_call(jlpm, cwd=str(root))  # noqa S603
+        check_call([*jlpm, "build:packages"], cwd=str(root))  # noqa S603
+        check_call([*jlpm, "docs"], cwd=str(root))  # noqa S603
 
-    dest_dir = osp.join(out_dir, "api")
-    print(f"Copying {docs_api} -> {dest_dir}")
-    if osp.exists(dest_dir):
-        shutil.rmtree(dest_dir)
-    shutil.copytree(docs_api, dest_dir)
+    dest_dir = out_dir / "api"
+    if dest_dir.exists():
+        shutil.rmtree(str(dest_dir))
+    shutil.copytree(str(docs_api), str(dest_dir))
 
 
 # Copy frontend files for snippet inclusion
@@ -126,16 +137,98 @@ def build_api_docs(out_dir):
 SNIPPETS_FOLDER = "snippets"
 
 
-def copy_code_files(temp_folder):
+def copy_code_files(temp_folder: Path):
     """Copy files in the temp_folder"""
-    docs = osp.join(HERE, os.pardir)
-    root = osp.join(docs, os.pardir)
+    docs = HERE.parent
+    root = docs.parent
 
     for file in FILES_LIST:
-        target = osp.join(temp_folder, file)
-        if not osp.exists(osp.dirname(target)):
-            os.makedirs(osp.dirname(target), exist_ok=True)
-        shutil.copyfile(osp.join(root, file), target)
+        target = temp_folder / file
+        if not target.parent.exists():
+            target.parent.mkdir(parents=True, exist_ok=True)
+        shutil.copyfile(str(root / file), str(target))
+
+        # Split plugin schema to ease documentation maintenance
+        if file == "packages/settingregistry/src/plugin-schema.json":
+            schema = json.loads(Path(target).read_text())
+
+            partial_schema = ChainMap(schema.get("definitions", {}), schema.get("properties", {}))
+            for key in partial_schema:
+                fragment = target.parent / f"{key}.json"
+                with fragment.open("w") as f:
+                    json.dump({key: partial_schema[key]}, f, indent=2)
+
+
+IMAGES_FOLDER = "images"
+AUTOMATED_SCREENSHOTS_FOLDER = "galata/test/documentation"
+
+
+def copy_automated_screenshots(temp_folder: Path) -> List[Path]:
+    """Copy PlayWright automated screenshots in documentation folder.
+
+    Args:
+        temp_folder: Target directory in which to copy the file
+    Returns:
+        List of copied files
+    """
+    docs = HERE.parent
+    root = docs.parent
+
+    src = root / AUTOMATED_SCREENSHOTS_FOLDER
+
+    copied_files = []
+    for img in src.rglob("*.png"):
+        target = temp_folder / (img.name.replace("-documentation-linux", ""))
+        shutil.copyfile(str(img), str(target))
+        copied_files.append(target)
+
+    return copied_files
+
+
+COMMANDS_LIST_PATH = "commands.test.ts-snapshots/commandsList-documentation-linux.json"
+COMMANDS_LIST_DOC = "user/commands_list.md"
+PLUGINS_LIST_PATH = "plugins.test.ts-snapshots/plugins-documentation-linux.json"
+PLUGINS_LIST_DOC = "extension/plugins_list.rst"
+TOKENS_LIST_PATH = "plugins.test.ts-snapshots/tokens-documentation-linux.json"
+TOKENS_LIST_DOC = "extension/tokens_list.rst"
+
+
+def document_commands_list(temp_folder: Path) -> None:
+    """Generate the command list documentation page from application extraction."""
+    list_path = HERE.parent.parent / AUTOMATED_SCREENSHOTS_FOLDER / COMMANDS_LIST_PATH
+
+    commands_list = json.loads(list_path.read_text())
+
+    template = """| Command id | Label | Shortcuts |
+| ---------- | ----- | --------- |
+"""
+
+    for command in sorted(commands_list, key=lambda c: c["id"]):
+        for key in ("id", "label", "caption"):
+            if key not in command:
+                command[key] = ""
+            else:
+                command[key] = command[key].replace("\n", " ")
+        shortcuts = command.get("shortcuts", [])
+        command["shortcuts"] = (
+            "<kbd>" + "</kbd>, <kbd>".join(shortcuts) + "</kbd>" if len(shortcuts) else ""
+        )
+
+        template += "| `{id}` | {label} | {shortcuts} |\n".format(**command)
+
+    (temp_folder / COMMANDS_LIST_DOC).write_text(template)
+
+
+def document_plugins_tokens_list(list_path: Path, output_path: Path) -> None:
+    """Generate the plugins list documentation page from application extraction."""
+    items = json.loads(list_path.read_text())
+
+    template = ""
+
+    for _name, _description in items.items():
+        template += f"- ``{_name}``: {_description}\n"
+
+    output_path.write_text(template)
 
 
 # -- Options for HTML output ----------------------------------------------
@@ -143,16 +236,56 @@ def copy_code_files(temp_folder):
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-import sphinx_rtd_theme
-
-html_theme = "sphinx_rtd_theme"
-html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
-
+html_theme = "pydata_sphinx_theme"
+html_logo = "_static/logo-rectangle.svg"
+html_favicon = "_static/logo-icon.png"
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
 #
-# html_theme_options = {}
+html_theme_options = {
+    "icon_links": [
+        {
+            "name": "jupyter.org",
+            "url": "https://jupyter.org",
+            "icon": "_static/jupyter_logo.svg",
+            "type": "local",
+        },
+        {
+            "name": "GitHub",
+            "url": "https://github.com/jupyterlab/jupyterlab",
+            "icon": "fab fa-github-square",
+        },
+        {
+            "name": "Discourse",
+            "url": "https://discourse.jupyter.org/c/jupyterlab/17",
+            "icon": "fab fa-discourse",
+        },
+        {
+            "name": "Gitter",
+            "url": "https://gitter.im/jupyterlab/jupyterlab",
+            "icon": "fab fa-gitter",
+        },
+    ],
+    "logo": {
+        "image_light": "_static/logo-rectangle.svg",
+        "image_dark": "_static/logo-rectangle-dark.svg",
+        "alt_text": "JupyterLab",
+    },
+    "use_edit_page_button": True,
+    "navbar_align": "left",
+    "navbar_start": ["navbar-logo", "version-switcher"],
+    "navigation_with_keys": False,
+    "footer_start": ["copyright.html"],
+    "switcher": {
+        # Trick to get the documentation version switcher to always points to the latest version without being corrected by the integrity check;
+        # otherwise older versions won't list newer versions
+        "json_url": "/".join(
+            ("https://jupyterlab.readthedocs.io/en", "latest", "_static/switcher.json")
+        ),
+        "version_match": os.environ.get("READTHEDOCS_VERSION", "latest"),
+    },
+}
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
@@ -165,22 +298,16 @@ def copy_code_files(temp_folder):
 # This is required for the alabaster theme
 # refs: http://alabaster.readthedocs.io/en/latest/installation.html#sidebars
 html_sidebars = {
-    "**": [
-        "about.html",
-        "navigation.html",
-        "relations.html",  # needs 'show_related': True theme option to display
-        "searchbox.html",
-        "donate.html",
-    ]
+    "index": [],  # Home page has no sidebar so there's more room for content
+    "**": ["sidebar-nav-bs.html"],
 }
 
 # Output for github to be used in links
 html_context = {
-    "display_github": True,  # Integrate GitHub
     "github_user": "jupyterlab",  # Username
     "github_repo": "jupyterlab",  # Repo name
-    "github_version": "3.6.x",  # Version
-    "conf_py_path": "/docs/source/",  # Path in the checkout to the docs root
+    "github_version": "4.0.x",  # Version
+    "doc_path": "docs/source/",  # Path in the checkout to the docs root
 }
 
 # -- Options for HTMLHelp output ------------------------------------------
@@ -210,7 +337,13 @@ def copy_code_files(temp_folder):
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-    (master_doc, "JupyterLab.tex", "JupyterLab Documentation", "Project Jupyter", "manual"),
+    (
+        master_doc,
+        "JupyterLab.tex",
+        "JupyterLab Documentation",
+        "Project Jupyter",
+        "manual",
+    ),
 ]
 
 
@@ -265,18 +398,36 @@ def copy_code_files(temp_folder):
 
 
 def setup(app):
-    dest = osp.join(HERE, "getting_started/changelog.md")
-    shutil.copy(osp.join(HERE, "..", "..", "CHANGELOG.md"), dest)
+    dest = HERE / "getting_started/changelog.md"
+    shutil.copy(str(HERE.parent.parent / "CHANGELOG.md"), str(dest))
     app.add_css_file("css/custom.css")  # may also be an URL
-    build_api_docs(app.outdir)
+    # Skip we are dealing with internationalization
+    outdir = Path(app.outdir)
+    if outdir.name != "gettext":
+        build_api_docs(outdir)
 
-    copy_code_files(osp.join(app.srcdir, SNIPPETS_FOLDER))
+    copy_code_files(Path(app.srcdir) / SNIPPETS_FOLDER)
+    tmp_files = copy_automated_screenshots(Path(app.srcdir) / IMAGES_FOLDER)
 
-    def clean_code_files(app, exception):
+    def clean_code_files(tmp_files, app, exception):
         """Remove temporary folder."""
         try:
-            shutil.rmtree(osp.join(app.srcdir, SNIPPETS_FOLDER))
-        except Exception as e:
-            print(f"Fail to remove temporary snippet folder: {e}")
-
-    app.connect("build-finished", clean_code_files)
+            shutil.rmtree(str(Path(app.srcdir) / SNIPPETS_FOLDER))
+        except Exception:  # noqa S110
+            pass
+
+        for f in tmp_files:
+            f.unlink()
+
+    src_dir = Path(app.srcdir)
+    document_commands_list(src_dir)
+    document_plugins_tokens_list(
+        HERE.parent.parent / AUTOMATED_SCREENSHOTS_FOLDER / PLUGINS_LIST_PATH,
+        src_dir / PLUGINS_LIST_DOC,
+    )
+    document_plugins_tokens_list(
+        HERE.parent.parent / AUTOMATED_SCREENSHOTS_FOLDER / TOKENS_LIST_PATH,
+        src_dir / TOKENS_LIST_DOC,
+    )
+
+    app.connect("build-finished", partial(clean_code_files, tmp_files))
diff --git a/docs/source/developer/accessibility.rst b/docs/source/developer/accessibility.rst
new file mode 100644
index 000000000000..f78dcbeb85ff
--- /dev/null
+++ b/docs/source/developer/accessibility.rst
@@ -0,0 +1,274 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+Accessibility: A JupyterLab Developer's Guide
+=============================================
+
+If you're making changes to the JupyterLab source code and you're concerned
+about `accessibility <https://en.wikipedia.org/wiki/Accessibility>`__, this page
+is for you.
+
+Looking for other ways to `contribute to accessibility on Jupyter projects
+<https://jupyter-accessibility.readthedocs.io/en/latest/contribute/guide.html>`__?
+
+Where to start
+--------------
+
+Thank you for being interested in improving JupyterLab's accessibility. Whether
+making accessibility-specific fixes or considering the accessibility impacts of
+another contribution, your work betters JupyterLab for everyone who uses it.
+
+A common question when accessibility-minded developers come to JupyterLab is:
+where do I get started?
+
+If you don't have a lot of time to immerse yourself in the big picture of
+JupyterLab accessibility work, then the GitHub issues labeled `good first issue
+and accessibility
+<https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22+label%3Atag%3AAccessibility>`__
+are a good place to start.
+
+If you want to more fully immerse yourself in the work of making JupyterLab (or
+other Jupyter projects) more accessible, then a good place to start would be to
+join the `Jupyter accessibility meeting
+<https://jupyter-accessibility.readthedocs.io/en/latest/community/index.html#team-meetings-and-notes>`__
+that happens every other week. If you cannot attend the call, you can peruse the
+meeting notes and find links to other resources on the `Jupyter Accessibility
+<https://jupyter-accessibility.readthedocs.io/>`__ site.
+
+Looking for a `frontend developer's orientation to the JupyterLab codebase
+<https://jupyter-accessibility.readthedocs.io/en/latest/resources/map-jupyterlab-frontend-architecture/README.html>`__?
+
+Best practices while developing
+-------------------------------
+
+JupyterLab is a web application and authoring tool. Therefore the following
+standards apply:
+
+- WCAG - `Web Content Accessibility Guidelines
+  <https://www.w3.org/WAI/standards-guidelines/wcag/>`__
+- ARIA - `Accessible Rich Internet Applications
+  <https://www.w3.org/WAI/standards-guidelines/aria/>`__
+- ATAG - `Authoring Tool Accessibility Guidelines
+  <https://www.w3.org/WAI/standards-guidelines/atag/>`__
+
+These are good places to familiarize yourself with accessibility best practices
+for developing websites (WCAG) and web applications (ARIA). Note that although
+WCAG was created primarily for static websites, the guidelines are nonetheless
+applicable to web apps like JupyterLab.
+
+One resource that is often particularly helpful for developers looking for
+examples and best practices is `ARIA Patterns
+<https://www.w3.org/WAI/ARIA/apg/patterns/>`__. This web resource contains
+examples of how to implement UI elements—such as menus, dialogs, breadcrumbs,
+and more—in a more accessible way. However, be careful! Just because you can
+implement a button using divs and aria attributes does not mean that you should!
+(Most likely you should just use the button tag.) As a best practice, you should
+only use ARIA when you cannot use existing HTML elements (button, input, nav,
+aside, etc.) to achieve the UX that you desire.
+
+Finally, there is much more accessibility knowledge on the Internet than there
+is in JupyterLab or Project Jupyter alone. Whatever you decide to work on,
+consider exploring accessibility resources in other spaces for similar or
+equivalent efforts. Accessibility communities tend to be generous with the
+resources they provide to improve web accessibility. Many times, searching for
+the name of the task or issue appended with `accessibility` in a search engine
+will give you several results and a chance to learn from the broader community
+right away.
+
+The rest of this section contains best practices specific to JupyterLab and its
+development.
+
+Use color variables from the CSS
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+When fixing contrast or other visual accessibility issues in JupyterLab, it can
+be tempting to pick a color and apply it to the part of the UI that you are
+working on. However, it quickly becomes unmanageable to have color values spread
+throughout the app across different CSS files. Therefore, the JupyterLab
+codebase defines a set of `color variables
+<https://github.com/jupyterlab/jupyterlab/blob/4.0.x/packages/theme-light-extension/style/variables.css>`__
+that can be used for borders, icons, and such. If you're adding any CSS that
+needs a color value, please use one of the variables defined.
+
+Upstream fixes in Lumino
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+JupyterLab uses a front-end framework that was built specifically for it called
+Lumino. Lumino is similar in some ways to React, Vue, and Angular, but it also
+provides a number of UI widgets like menu bars, tab bars, and dock panels. As a
+result, some of the accessibility issues reported in the JupyterLab GitHub repo
+need to be fixed in the Lumino repo. A good resource for learning Lumino:
+`PhosphorJS (now Lumino) Mentor Sessions
+<https://www.youtube.com/playlist?list=PLFx5GKe0BTjQyCKtiK9TI-ekSuSn_8a3J>`__.
+PhosphorJS was Lumino's previous name. There is a page with `notes from the
+PhosphorJS sessions
+<https://gist.github.com/blink1073/1c21ec077acbb9178e01e14936ddda1b>`__ that
+also has a link to some additional videos that were not uploaded to YouTube.
+
+It's not always obvious when an accessibility issue should be fixed in
+JupyterLab or Lumino. Some guidance to help you identify where your change
+should be made:
+
+- Generally speaking, if you can fix the issue in Lumino, it's better to fix it
+  in Lumino because then the fix will be absorbed in more places.
+- However, for that same reason, because Lumino is used by more codebases than
+  just JupyterLab—specifically, by JupyterLab extensions—one should be careful
+  making changes to Lumino that might break downstream consumers/extensions.
+- So an additional rule of thumb is: if you can't make the fix in Lumino without
+  breaking dependants, then it might be better to make the fix in JupyterLab. In
+  this case, you might take a two-track approach, where you fix the
+  accessibility issue in JupyterLab and also submit a breaking fix in Lumino
+  that targets a future, major, API-breaking release/version of Lumino.
+
+Automated Regression Testing
+----------------------------
+
+If you fix an accessibility issue in the source code but you don't add a test
+with your fix, then there's a strong chance that your fix will be undone
+accidentally by some future changes to the codebase.
+
+Sometimes it's straightforward to unit-test an accessibility fix, such as when
+`enabling keyboard shortcuts on a toolbar button
+<https://github.com/jupyterlab/jupyterlab/pull/5769>`__. But often it's
+difficult to unit-test accessibility fixes.
+
+Therefore there is an effort underway to use `Playwright
+<https://playwright.dev>`__ to write user-level `accessibility tests to
+JupyterLab
+<https://github.com/Quansight-Labs/jupyter-a11y-testing/tree/main/testing/jupyterlab>`__.
+To illustrate how to use it within your development process, let's walk through
+an example.
+
+This example will involve three separate GitHub repos:
+
+1. `Quansight-Labs/jupyter-a11y-testing
+   <https://github.com/Quansight-Labs/jupyter-a11y-testing>`__
+2. `jupyterlab/lumino <https://github.com/jupyterlab/lumino>`__
+3. `jupyterlab/jupyterlab <https://github.com/jupyterlab/jupyterlab>`__
+
+This is a real world example, taken from actual past work.
+
+Let's say you do an accessibility audit of the start page of the JupyterLab UI
+and find a tab trap in the top menu bar, meaning the user can press the tab key
+to get into the menu bar but cannot easily get past it using only the keyboard.
+
+You dig in further and discover that the `tab trap bug is in the
+jupyterlab/lumino repo <https://github.com/jupyterlab/lumino/pull/373>`__, so
+you fork the jupyterlab/lumino repo, create a new branch called
+``fix-tab-trap``, and open a pull request.
+
+You decide that you want to write a test. This is one of those cases where writing a unit test would be a straightforward task. However, a unit test would only check the
+top menu bar, so it would not prevent a reappearance of the issue that you
+decided you want to fix once and for all, namely: you don't want any tab traps
+anywhere on the JupyterLab start page.
+
+So you decide that you want to `add a regression test to the
+Quansight-Labs/jupyter-a11y-testing repo
+<https://github.com/Quansight-Labs/jupyter-a11y-testing/blob/f36bf5b2e8cb87613c637fc5aa03401c92ec58d0/testing/jupyterlab/tests/regression-tests/no-tab-trap-initial-page.test.ts>`__.
+This test checks that there are no tab traps on the JupyterLab start page by
+using Playwright to open JupyterLab and press the tab key repeatedly. So as with
+the Lumino repo before, you fork the Quansight-Labs/jupyter-a11y-testing repo,
+create a branch called ``test-tab-trap``, and open a pull request. The important
+thing in this step is that you save your test file with a ``.test.ts`` extension
+next to the other regression test files.
+
+Now you want to run your test. Specifically, you want to run the test against a
+build of JupyterLab that incorporates your Lumino fix. Here's how you would do
+that.
+
+Let's pretend that your GitHub username is *a11ydev* and you've forked the
+Lumino and testing repos and created the following branches on those forks, one
+with your bug fix and the other with your test:
+
+1. ``a11ydev/lumino:fix-tab-trap``
+2. ``a11ydev/jupyter-a11y-testing:test-tab-trap``
+
+On GitHub, go to your fork of the testing repo, *a11ydev/jupyter-a11y-testing*.
+Make sure that you are on your `test-tab-trap` branch, which contains the
+``.test.ts`` file that you added. Then go to Actions and click on the workflow
+titled "Run accessibility tests on JupyterLab." Click "Run workflow." This will
+open a form to configure the workflow.
+
+Here's how you should fill out the form:
+
+1. Use workflow from: ``test-tab-trap``
+2. JupyterLab repo: ``jupyterlab/jupyterlab``
+3. Branch/tag/SHA: ``main``
+4. Test suite: leave blank
+5. External package repo: ``a11ydev/lumino``
+6. External package ref: ``fix-tab-trap``
+
+Then press the "Run workflow" button. A GitHub action should then build
+JupyterLab from source, linking your Lumino fork and branch, then run the test
+suite, including your test, and then finally show the test results, hopefully
+with your test passing.
+
+Note that in this example you did not fork the jupyterlab/jupyterlab repo or
+change the branch name to something other than "main" in the workflow config
+form. This is because you did not need to modify the JupyterLab codebase to fix this issue. But if you were working on an issue that required you
+to modify the JupyterLab codebase, you would do the same thing that you did
+earlier with Lumino: fork the repo, create a branch with your fix, and then
+enter your fork and branch in the workflow config form before running the
+workflow. That should cause it to build a version of JupyterLab based on your
+changes and then run the test suite against it. The workflow is flexible enough
+to allow you to test against changes in JupyterLab or Lumino or both at the same
+time if needed.
+
+.. note:: There are more `detailed instructions for how to use the GitHub workflow <https://github.com/Quansight-Labs/jupyter-a11y-testing/blob/main/testing/jupyterlab/README.md#running-the-accessibility-tests->`__ in the testing repo.
+
+PR Review and Manual Testing
+----------------------------
+
+When reviewing code, documentation, or other contributions, you can use manual
+testing to help prevent accessibility bugs. Typically you try and complete a
+task related to your fix or contribution using an accessibility accommodation or
+setting. Common options include:
+
+- Using a `screen reader <https://en.wikipedia.org/wiki/Screen_reader>`__.
+- Zooming the page up to 400% via your browser.
+- Unplugging or not using your mouse. Navigate only with the keyboard.
+- `Emulating vision deficiencies
+  <https://learn.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/accessibility/emulate-vision-deficiencies#open-the-rendering-tool>`__
+  (Chrome, Edge, and Firefox all provide built-in tools to do this.)
+
+While testing, take note of what happens and compare it to what you can do to
+complete the task without your chosen accessibility accommodation. If there is
+anything you cannot complete, then you have a blocking accessibility issue. Even
+though your use of assistive tech or an accessibility accommodation will likely
+differ from someone who uses them regularly, knowing the results is helpful to
+tell if JupyterLab is behaving as you expect.
+
+GitPod
+^^^^^^
+
+If you have a `GitPod <https://www.gitpod.io/>`__ account and you have submitted
+a PR to JupyterLab, you can manually test it by copying the GitHub URL to your
+PR and concatenating it to ``gitpod.io/#``, like so:
+
+:samp:`https://gitpod.io/#https://github.com/jupyterlab/jupyterlab/pull/{your-pr-number}`
+
+GitPod will build JupyterLab from source with your PR applied and set up a
+tunnel so that you can load the UI in your browser at localhost:8888.
+
+Useful tools for development
+----------------------------
+
+Here is a list of some apps that developers have found useful while doing
+accessibility work in JupyterLab:
+
+- Chrome Dev Tools for `discovering and fixing low contrast text
+  <https://developer.chrome.com/docs/devtools/accessibility/contrast/>`__ and
+  for `viewing the accessibility tree
+  <https://developer.chrome.com/docs/devtools/accessibility/reference/#tree>`__
+- `Axe DevTools
+  <https://chrome.google.com/webstore/detail/axe-devtools-web-accessib/lhdoppojpmngadmnindnejefpokejbdd>`__,
+  extension for Chrome Dev Tools
+- `Color Contrast Analyzer <https://www.tpgi.com/color-contrast-checker/>`__,
+  desktop app for Windows and Mac
+- `Polypane <https://polypane.app/>`__, desktop browser with some dev tools
+  built in (note it's not free but it does have a free trial)
+- `Axe Accessibility Linter
+  <https://marketplace.visualstudio.com/items?itemName=deque-systems.vscode-axe-linter>`__,
+  extension for VS Code
+- GitPod: See the GitPod section under the Testing section above.
+- And of course, screen readers such as JAWS, NVDA, and VoiceOver.
diff --git a/docs/source/developer/api.rst b/docs/source/developer/api.rst
index 126e9e178b89..e2b0937541aa 100644
--- a/docs/source/developer/api.rst
+++ b/docs/source/developer/api.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 JupyterLab API Reference
 ========================
 
diff --git a/docs/source/developer/components.rst b/docs/source/developer/components.rst
index c9f7cb81e565..243457692184 100644
--- a/docs/source/developer/components.rst
+++ b/docs/source/developer/components.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Using JupyterLab components
 ===========================
 
@@ -8,7 +11,7 @@ IDE-like experience. However, developers are encouraged to use these to bring
 to life their own visions of what a computational environment should look
 like.
 
-The JupyterLab repository has `many examples <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/examples>`_
+The JupyterLab repository has `many examples <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/examples>`_
 to get you started.
 
 The ``examples`` directory contains:
diff --git a/docs/source/developer/contributing.rst b/docs/source/developer/contributing.rst
index b9c06c92e699..0889684ba229 100644
--- a/docs/source/developer/contributing.rst
+++ b/docs/source/developer/contributing.rst
@@ -1,5 +1,8 @@
-Contributing to JupyterLab
-==========================
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+Contribute
+==========
 
 If you're reading this section, you're probably interested in
 contributing to JupyterLab. Welcome and thanks for your interest in
@@ -7,10 +10,19 @@ contributing!
 
 Please take a look at the Contributor documentation, familiarize
 yourself with using JupyterLab, and introduce yourself to the community
-(on the mailing list or discourse) and share what area of the project
-you are interested in working on. Please also see the Jupyter `Community
+(on the `chat <https://gitter.im/jupyterlab/jupyterlab>`__ and/or the `forum <https://discourse.jupyter.org/c/jupyterlab/17>`__)
+and share what area of the project you are interested in working on. Please also see the Jupyter `Community
 Guides <https://jupyter.readthedocs.io/en/latest/community/content-community.html>`__.
 
+You can help make it better by:
+
+* `submitting bug reports <https://github.com/jupyterlab/jupyterlab/issues/new/choose>`__,
+* `proposing new features <https://github.com/jupyterlab/jupyterlab/issues/new?assignees=&labels=enhancement%2C+status%3ANeeds+Triage&template=feature_request.md>`__,
+* `translating the application <https://crowdin.com/project/jupyterlab>`__,
+* `improving the documentation <https://jupyterlab.readthedocs.io/en/latest>`__,
+* improving the code base and fixing bug (see below)
+
+
 We have labeled some issues as `good first
 issue <https://github.com/jupyterlab/jupyterlab/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22>`__
 or `help
@@ -29,6 +41,18 @@ any Jupyter project, please report it to security@ipython.org. If you
 prefer to encrypt your security reports, you can use `this PGP public
 key <https://raw.githubusercontent.com/jupyter/notebook/master/docs/source/ipython_security.asc>`__.
 
+.. toctree::
+   :hidden:
+
+   repo
+   components
+   patterns
+   Accessibility <accessibility>
+   internationalization
+   css
+   performance
+   api
+
 .. contents:: Table of contents
     :local:
     :depth: 1
@@ -42,24 +66,69 @@ Documentation <https://jupyter.readthedocs.io/en/latest/contributing/content-con
 and `Code of
 Conduct <https://github.com/jupyter/governance/blob/master/conduct/code_of_conduct.md>`__.
 
+.. _versioning_notes:
+
+Backwards Compatibility, Versions and Breaking Changes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+New versions of JupyterLab may break backwards compatibility with extensions and other Jupyter
+customizations. Breaking changes are kept to a minimum where possible. JupyterLab development
+and release cycles follow `semantic versioning <https://semver.org/>`__, so when breaking
+changes are necessary, they are communicated via the version numbering scheme. In short, this
+means that, for a JupyterLab version X.Y.Z:
+
+- Major version (X) number changes indicate breaking changes (NOT backwards compatible)
+- Minor Version (Y) number changes indicate a backwards compatible addition of new features
+- Patch version (Z) number changes indicate backwards compatible bug fixes
+
+Contributions to JupyterLab extensions and other customizations should plan for possible
+breaking changes. Consider documenting your maintenance plans to users in these projects.
+You may also wish to consider pinning the major version of JupyterLab when developing
+extensions (in your package metadata).
+
 We maintain the **two most recently released major versions of JupyterLab**,
-JupyterLab v2 and JupyterLab v3. After JupyterLab v4 is released, we will no
-longer maintain v2.
+JupyterLab v3 and JupyterLab v4. JupyterLab v1 and v2 are no longer maintained.
 All JupyterLab v2 users are strongly advised to upgrade as soon as possible.
 
+Languages, Tools and Processes
+------------------------------
+
 All source code is written in
 `TypeScript <https://www.typescriptlang.org/Handbook>`__. See the `Style
 Guide <https://github.com/jupyterlab/jupyterlab/wiki/TypeScript-Style-Guide>`__.
 
-All source code is formatted using `prettier <https://prettier.io>`__.
+All non-python source code is formatted using `prettier <https://prettier.io>`__, and python source code is formatted using `black <https://github.com/psf/black>`__.
 When code is modified and committed, all staged files will be
-automatically formatted using pre-commit git hooks (with help from the
-`lint-staged <https://github.com/okonet/lint-staged>`__ and
-`husky <https://github.com/typicode/husky>`__ libraries). The benefit of
-using a code formatter like prettier is that it removes the topic of
+automatically formatted using pre-commit git hooks (with help from
+`pre-commit <https://github.com/pre-commit/pre-commit>`__). The benefit of
+using a code formatters like ``prettier`` and ``black`` is that it removes the topic of
 code style from the conversation when reviewing pull requests, thereby
 speeding up the review process.
 
+As long as your code is valid,
+the pre-commit hook should take care of how it should look.
+`pre-commit` and its associated hooks will automatically be installed when
+you run ``pip install -e ".[dev,test]"``
+
+To install ``pre-commit`` manually, run the following::
+
+    pip install pre-commit
+    pre-commit install
+
+You can invoke the pre-commit hook by hand at any time with::
+
+    pre-commit run
+
+which should run any autoformatting on your code
+and tell you about any errors it couldn't fix automatically.
+You may also install `black integration <https://github.com/psf/black#editor-integration>`__
+into your text editor to format code automatically.
+
+If you have already committed files before setting up the pre-commit
+hook with ``pre-commit install``, you can fix everything up using
+``pre-commit run --all-files``. You need to make the fixing commit
+yourself after that.
+
 You may also use the prettier npm script (e.g. ``npm run prettier`` or
 ``yarn prettier`` or ``jlpm prettier``) to format the entire code base.
 We recommend installing a prettier extension for your code editor and
@@ -70,18 +139,29 @@ Submitting a Pull Request Contribution
 --------------------------------------
 
 Generally, an issue should be opened describing a piece of proposed work
-and the issues it solves before a pull request is opened. A triager will 
+and the issues it solves before a pull request is opened. A triager will
 ensure that your issue meets our definition of ready before we can merge
 any pull requests that relate to it.
 
+Pull requests must target the development branch (= ``main``) even if
+it aims at addressing an issue seen in a stable release. Once the pull
+request is merged on the development branch, it will be backported to
+the stable branch using a bot action (or manually if the bot action
+failed).
+
+.. note::
+
+   Don't hesitate to mention the targeted version in a PR description.
+   A maintainer will set the milestone accordingly.
+
 Issue Management
 ^^^^^^^^^^^^^^^^
 
 Opening an issue lets community members participate in the design
 discussion, makes others aware of work being done, and sets the stage
-for a fruitful community interaction. When you open a new bug or 
-enhancement request, please provide all the requested information 
-in the issue template 
+for a fruitful community interaction. When you open a new bug or
+enhancement request, please provide all the requested information
+in the issue template
 so that a responder will be able to triage your bug without delay.
 
 A pull request should reference
@@ -93,7 +173,7 @@ bot <https://github.com/apps/lock>`__ will lock the issue. If additional
 discussion is desired, or if the pull request doesn't fully address the
 locked issue, please open a new issue referencing the locked issue.
 
-New issues are subject to triage. A developer with triage permissions 
+New issues are subject to triage. A developer with triage permissions
 (a *triager*) will do the following:
 
 1. Read the issue
@@ -102,24 +182,24 @@ New issues are subject to triage. A developer with triage permissions
 4. If the issue is ready to be worked on, assign it to a milestone
 5. Apply appropriate labels to the issue (see examples below)
 
-A developer may start to work on an issue as soon as it is filed. Please 
-work with a triager if they have any questions about your issue so that 
+A developer may start to work on an issue as soon as it is filed. Please
+work with a triager if they have any questions about your issue so that
 your changes can be merged in without delay.
 
 Definition of Ready
 ^^^^^^^^^^^^^^^^^^^
 
 One of the main goals of triage is to get issues into a state where they
-are **ready** for someone to work on. Once a triager is satisfied that an 
+are **ready** for someone to work on. Once a triager is satisfied that an
 issue meets the definition below, they will remove the ``status:Needs Triage``
-label from it. We will not merge a pull request for an issue that still 
+label from it. We will not merge a pull request for an issue that still
 needs triage.
 
-Triagers should also ensure that the issue has appropriate labels that 
-describe it, such as labels with the ``pkg:`` prefix for issues that 
+Triagers should also ensure that the issue has appropriate labels that
+describe it, such as labels with the ``pkg:`` prefix for issues that
 affect one or more packages.
 
-**All requested information, where applicable, is provided.** From the 
+**All requested information, where applicable, is provided.** From the
 templates in JupyterLab’s issues:
 
 For a **bug**:
@@ -135,7 +215,7 @@ For a **feature request**:
 * Description of the proposed solution
 * Additional context
 
-**The issue should represent real, relevant, feasible work**. In short, if a 
+**The issue should represent real, relevant, feasible work**. In short, if a
 knowledgeable person were to be assigned this issue, they would be able to
 complete it with a reasonable amount of effort and assistance, and it
 furthers the goals of the Jupyter project.
@@ -144,9 +224,9 @@ furthers the goals of the Jupyter project.
 * Bugs represent valid expectations for use of Jupyter products and services.
 * Expectations for security, performance, accessibility, and localization match
   generally-accepted norms in the community that uses Jupyter products.
-* The issue represents work that one developer can commit to owning, even if 
-  they collaborate with other developers for feedback. Excessively large issues 
-  should be split into multiple issues, each triaged individually, or into 
+* The issue represents work that one developer can commit to owning, even if
+  they collaborate with other developers for feedback. Excessively large issues
+  should be split into multiple issues, each triaged individually, or into
   `team-compass <https://github.com/jupyterlab/team-compass>`__ issues to discuss
   more substantive changes.
 
@@ -157,21 +237,32 @@ All new bugs and enhancement requests have the ``status:Needs Triage`` label.
 
 On a regular basis, Jupyter contributors (triage reviewers or triagers)
 review JupyterLab issues tagged
-with ``status:Needs Triage``, starting with the oldest, and determine 
+with ``status:Needs Triage``, starting with the oldest, and determine
 whether they meet the definition of ready.
 
-Once triaged, if the issue is ready, the reviewer removes the 
-``status:Needs Triage`` label; no additional label is required. If there 
+Once triaged, if the issue is ready, the reviewer removes the
+``status:Needs Triage`` label; no additional label is required. If there
 is not enough information in the issue as filed, the triage reviewer applies
 the ``status:Needs Info`` label and leaves ``status:Needs Triage`` in place.
-If an issue has remained in ``status:Needs Info`` for more than 14 days 
-without any follow-up communication, the reviewer should apply 
+If an issue has remained in ``status:Needs Info`` for more than 14 days
+without any follow-up communication, the reviewer should apply
 ``status:Blocked``. A blocked issue should be closed after another 14 days
 pass without a reply that unblocks it.
 
 Our expectation is that every new issue should be examined within a week of
 its creation.
 
+Triagers should label easier/lower complexity issues as ``good first issue`` to
+facilitate beginner contributions. A good first issue should have:
+
+* A clear, easily understood description with screen shots and expectations that do not require much familiarity with the project
+* Links, either in the description or in comments, to documentation and source code files that are relevant to the issue
+* Recommended points of contact, either by GitHub username or on other forums (Discourse, etc) where a contributor can get help
+
+Unless an issue is time-sensitive, such as if it is a release blocker
+for an imminent release, experienced Jupyter contributors should avoid
+picking up recent issues with the ``good first issue`` label.
+
 Tagging Issues with Labels
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -182,14 +273,25 @@ the label ``foo`` and ``bar baz`` to an issue, comment
 
 Contributing from within the browser
 ------------------------------------
-Using the https://github.com web interface - documented
-`here <https://docs.github.com/en/free-pro-team@latest/github>`__ - you
-can create and propose a change purely within your browser.
 
-Using `Binder <https://mybinder.org>`__, you can test the current master branch and your
+Contributing to JupyterLab codebase is also possible without setting up
+a local environment, directly from the Web browser:
+
+-  `Gitpod <https://www.gitpod.io/>`__ integration is enabled,
+   however it is not actively maintained,
+-  GitHub's
+   `built-in editor <https://docs.github.com/en/repositories/working-with-files/managing-files/editing-files>`__
+   is suitable for contributing very small fixes,
+-  more advanced `github.dev <https://docs.github.com/en/codespaces/the-githubdev-web-based-editor>`__
+   editor can be accessed by pressing the dot (``.``) key while in the JupyterLab GitHub repository,
+-  `jupyterlab-playground <https://github.com/jupyterlab/jupyterlab-plugin-playground>`__,
+   allows to prototype JupyterLab extensions from within JupyterLab and
+   can be run without installation in the browser using Binder.
+
+Using `Binder <https://mybinder.org>`__, you can test the current main branch and your
 changes within the browser as well. We recommend you have at least 8 GB of RAM for this.
-To build and launch an instance of the latest JupyterLab master, open
-`this link <https://mybinder.org/v2/gh/jupyterlab/jupyterlab/master?urlpath=lab-dev/>`__
+To build and launch an instance of the latest JupyterLab main, open
+`this link <https://mybinder.org/v2/gh/jupyterlab/jupyterlab/main?urlpath=lab-dev/>`__
 in a new tab. The build takes about 7 minutes to complete.
 
 To test your own branch hosted on GitHub, enter it on https://mybinder.org.
@@ -199,32 +301,23 @@ about 7 minutes again.
 Setting up a local development environment
 ------------------------------------------
 This section explains how to set up a local development environment. We assume you use GNU/Linux,
-Mac OS X, or Windows Subsystem for Linux.
+macOS, or Windows Subsystem for Linux. If using Windows, we recommend installing `Anaconda for windows <https://www.anaconda.com/download>`__ and then using the Anaconda command prompt for all installation steps.
 
 Installing Node.js and jlpm
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Building JupyterLab from its GitHub source code requires Node.js. The
-development version requires Node.js version 12+, as defined in the
+development version requires Node.js version 18+, as defined in the
 ``engines`` specification in
-`dev_mode/package.json <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/dev_mode/package.json>`__.
+`dev_mode/package.json <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/dev_mode/package.json>`__.
 
-If you use ``conda``, you can get it with:
+If you use `conda <https://conda.io>`__, you can get it with:
 
 .. code:: bash
 
    conda install -c conda-forge nodejs
 
-The canvas node package is not properly packaged for Mac OS X with ARM architectures (M1 and M2).
-To build JupyterLab on such platforms, you need a few additional packages, and to specify the pkg-config
-path:
-
-.. code:: bash
-
-   conda install -c conda-forge pkg-config pango libpng cairo jpeg giflib librsvg glib
-   export PKG_CONFIG_PATH=$CONDA_PREFIX/lib/pkgconfig
-
-If you use `Homebrew <https://brew.sh>`__ on Mac OS X:
+If you use `Homebrew <https://brew.sh>`__ on macOS:
 
 .. code:: bash
 
@@ -239,6 +332,36 @@ To check which version of Node.js is installed:
 
    node -v
 
+.. _Installing Node.js and jlpm section:
+
+The canvas node package is not properly packaged for macOS with ARM architectures (M1 and M2).
+To build JupyterLab on such platforms, you need a few additional packages:
+
+With conda:
+
+.. code:: bash
+
+   conda install -c conda-forge pkg-config pango libpng cairo jpeg giflib librsvg glib pixman
+   export PKG_CONFIG_PATH=$CONDA_PREFIX/lib/pkgconfig
+
+With Homebrew:
+
+.. code:: bash
+
+   brew install pkg-config cairo pango libpng jpeg giflib librsvg
+
+Using automation to set up a local development environment
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+While there is a lot to learn by following the steps above, they can be automated to save time. This section shows how
+to do that using Vagrant as an example.
+
+The main advantages of using automation are: reduced time to get the environment up-and-running, reduced time to
+re-build the environment, better standardisation ("baseline", reproducible environments).
+
+A practical example can be found `there <https://github.com/markgreene74/jupyterlab-local-dev-with-vagrant>`_ and
+includes a ``Vagrantfile``, the bootstrap files and additional documentation.
+
 Installing JupyterLab
 ---------------------
 
@@ -251,7 +374,7 @@ Then use the following steps:
 
    git clone https://github.com/<your-github-username>/jupyterlab.git
    cd jupyterlab
-   pip install -e .
+   pip install -e ".[dev,test]"
    jlpm install
    jlpm run build  # Build the dev mode assets (optional)
 
@@ -277,13 +400,10 @@ Notes:
    Python 3.0+ version of ``pip`` or ``pip3 install -e .`` command to
    install JupyterLab from the forked repository.
 -  If you see an error that says ``Call to 'pkg-config pixman-1 --libs'
-   returned exit status 127 while in binding.gyp`` while running the 
+   returned exit status 127 while in binding.gyp`` while running the
    ``pip install`` command above, you may be missing packages required
-   by ``canvas``. On macOS with Homebrew, you can add these packages by
-   running 
-   ``brew install pkg-config cairo pango libpng jpeg giflib librsvg``.
-   If you are using mamba or conda, you can install the necessary packages
-   with `conda install -c conda-forge pkg-config glib pango pixman`.
+   by ``canvas``. Please see `Installing Node.js and jlpm section`_
+   of this guide for instructions on how to install these packages.
 -  The ``jlpm`` command is a JupyterLab-provided, locked version of the
    `yarn <https://classic.yarnpkg.com/en/>`__ package manager. If you have
    ``yarn`` installed already, you can use the ``yarn`` command when
@@ -365,7 +485,21 @@ appropriate package folder:
 
    cd packages/notebook
    jlpm run build:test
-   jlpm test
+   jlpm test --runInBand
+
+.. note::
+
+    ``--runInBand`` option will run all tests serially in the current process.
+    We advice to use it as some tests are spinning a Jupyter Server that does not
+    like to be executed in parallel.
+
+If you see a test run fail with ``Library not loaded: '@rpath/libpixman-1.0.dylib'``
+(or a different library, such as ``libcairo.2.dylib`` for Mac computers with Apple
+Silicon chips) while running the
+``jlpm test`` command above, you may be missing packages required
+by ``canvas``. Please see
+`Installing Node.js and jlpm section`_
+of this guide for instructions on how to install these packages.
 
 We use ``jest`` for all tests, so standard ``jest`` workflows apply.
 Tests can be debugged in either VSCode or Chrome. It can help to add an
@@ -422,244 +556,82 @@ must be delayed on minor or major versions.
 Performance Testing
 -------------------
 
-If you are making a change that might affect how long it takes to load
-JupyterLab in the browser, we recommend doing some performance testing
-using `Lighthouse <https://github.com/GoogleChrome/lighthouse>`__. It
-let's you easily compute a number of metrics, like page load time, for
-the site.
+Benchmark of JupyterLab is done using Playwright. The actions measured are:
 
-To use it, first build JupyterLab in dev mode:
+- Opening a file
+- Switching from the file to a simple text file
+- Switching back to the file
+- Closing the file
 
-.. code:: bash
+Two files are tested: a notebook with many code cells and another with many markdown cells.
 
-   jlpm run build:dev
+The test is run on the CI by comparing the result in the commit at which a PR branch started and the PR branch head on
+the same CI job to ensure using the same hardware.
+The benchmark job is triggered on:
 
-Then, start JupyterLab using the dev build:
+- Approved PR review
+- PR review that contains the sentence ``please run benchmark``
 
-.. code:: bash
-
-   jupyter lab --dev-mode --NotebookApp.token=''  --no-browser
-
-Now run Lighthouse against this local server and show the results:
+The tests are located in the subfolder ``galata/test/benchmark``. And they can be
+executed with the following command:
 
 .. code:: bash
 
-   jlpm run lighthouse --view
+   jlpm run test:benchmark
 
-.. image:: ../images/lighthouse.png
 
-Using throttling
-^^^^^^^^^^^^^^^^
+A special report will be generated in the folder ``benchmark-results`` that will contain 4 files:
 
-Lighthouse recommends using the system level
-`comcast <https://github.com/tylertreat/comcast>`__ tool to throttle
-your network connection and emulate different scenarios. To use it,
-first install that tool using ``go``:
-
-.. code:: bash
-
-   go get github.com/tylertreat/comcast
-
-Then, before you run Lighthouse, enable the throttling (this requires
-sudo):
-
-.. code:: bash
+- ``lab-benchmark.json``: The execution time of the tests and some metadata.
+- ``lab-benchmark.md``: A report in Markdown
+- ``lab-benchmark.png``: A comparison of execution time distribution
+- ``lab-benchmark.vl.json``: The `Vega-Lite <https://vega.github.io/vega-lite>`__ description used to produce the PNG file.
 
-   run lighthouse:throttling:start
+The reference, tagged *expected*, is stored in ``lab-benchmark-expected.json``. It can be
+created using the ``-u`` option of Playwright; i.e. ``jlpm run test:benchmark -u``.
 
-This enables the "WIFI (good)" preset of comcast, which should emulate
-loading JupyterLab over a local network.
+Benchmark parameters
+^^^^^^^^^^^^^^^^^^^^
 
-Then run the lighthouse tests:
+The benchmark can be customized using the following environment variables:
 
-.. code:: bash
-
-   jlpm run lighthouse [...]
-
-Then disable the throttling after you are done:
-
-.. code:: bash
-
-   jlpm run lighthouse:throttling:stop
-
-Comparing results
-^^^^^^^^^^^^^^^^^
-
-Performance results are usually only useful in comparison to other
-results. For that reason, we have included a comparison script that can
-take two lighthouse results and show the changes between them.
-
-Let's say we want to compare the results of the production build of
-JupyterLab with the normal build. The production build minifies all the
-JavaScript, so should load a bit faster.
-
-First, we build JupyterLab normally, start it up, profile it and save
-the results:
-
-.. code:: bash
+- ``BENCHMARK_NUMBER_SAMPLES``: Number of samples to compute the execution time distribution; default 20.
+- ``BENCHMARK_OUTPUTFILE``: Benchmark result output file; default ``benchmark.json``. It is overridden in the ``playwright-benchmark.config.js``.
+- ``BENCHMARK_REFERENCE``: Reference name of the data; default is ``actual`` for current data and ``expected`` for the reference.
 
-   jlpm build:dev
-   jupyter lab --dev --NotebookApp.token='' --no-browser
-
-   # in new window
-   jlpm run lighthouse --output json --output-path normal.json
-
-Then rebuild with the production build and retest:
-
-.. code:: bash
-
-   jlpm run build:dev:prod
-   jupyter lab --dev --NotebookApp.token='' --no-browser
-
-   # in new window
-   jlpm run lighthouse --output json --output-path prod.json
-
-Now we can use compare the two outputs:
-
-.. code:: bash
-
-   jlpm run lighthouse:compare normal.json prod.json
-
-This gives us a report of the relative differences between the audits in
-the two reports:
-
-.. admonition:: Resulting Output
-
-   ``normal.json`` -> ``prod.json``
-
-   | **First Contentful Paint**
-   | - -62% Δ
-   | - 1.9 s -> 0.7 s
-   | - First Contentful Paint marks the time at which the first text or
-     image is painted. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/first-contentful-paint>`__.
-
-   | **First Meaningful Paint**
-   | - -50% Δ
-   | - 2.5 s -> 1.3 s
-   | - First Meaningful Paint measures when the primary content of a
-     page is visible. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/first-meaningful-paint>`__.
-
-   | **Speed Index**
-   | - -48% Δ
-   | - 2.6 s -> 1.3 s
-   | - Speed Index shows how quickly the contents of a page are visibly
-     populated. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/speed-index>`__.
-
-   | **Estimated Input Latency**
-   | - 0% Δ
-   | - 20 ms -> 20 ms
-   | - Estimated Input Latency is an estimate of how long your app takes
-     to respond to user input, in milliseconds, during the busiest 5s
-     window of page load. If your latency is higher than 50 ms, users
-     may perceive your app as laggy. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/estimated-input-latency>`__.
-
-   | **Max Potential First Input Delay**
-   | - 9% Δ
-   | - 200 ms -> 210 ms
-   | - The maximum potential First Input Delay that your users could
-     experience is the duration, in milliseconds, of the longest task.
-     `Learn
-     more <https://developers.google.com/web/updates/2018/05/first-input-delay>`__.
-
-   | **First CPU Idle**
-   | - -50% Δ
-   | - 2.5 s -> 1.3 s
-   | - First CPU Idle marks the first time at which the page's main
-     thread is quiet enough to handle input. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/first-interactive>`__.
-
-   | **Time to Interactive**
-   | - -52% Δ
-   | - 2.5 s -> 1.2 s
-   | - Time to interactive is the amount of time it takes for the page
-     to become fully interactive. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/consistently-interactive>`__.
-
-   | **Avoid multiple page redirects**
-   | - -2% Δ
-   | - Potential savings of 10 ms -> Potential savings of 10 ms
-   | - Redirects introduce additional delays before the page can be
-     loaded. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/redirects>`__.
-
-   | **Minimize main-thread work**
-   | - -54% Δ
-   | - 2.1 s -> 1.0 s
-   | - Consider reducing the time spent parsing, compiling and executing
-     JS. You may find delivering smaller JS payloads helps with this.
-
-   | **JavaScript execution time**
-   | - -49% Δ
-   | - 1.1 s -> 0.6 s
-   | - Consider reducing the time spent parsing, compiling, and
-     executing JS. You may find delivering smaller JS payloads helps
-     with this. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/bootup>`__.
-
-   | **Preload key requests**
-   | - -100% Δ
-   | - Potential savings of 240 ms ->
-   | - Consider using <link rel=preload> to prioritize fetching
-     resources that are currently requested later in page load. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/preload>`__.
-
-   | **Uses efficient cache policy on static assets**
-   | - 0% Δ
-   | - 1 resource found -> 1 resource found
-   | - A long cache lifetime can speed up repeat visits to your page.
-     `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/cache-policy>`__.
-
-   | **Avoid enormous network payloads**
-   | - -86% Δ
-   | - Total size was 30,131 KB -> Total size was 4,294 KB
-   | - Large network payloads cost users real money and are highly
-     correlated with long load times. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/network-payloads>`__.
-
-   | **Minify JavaScript**
-   | - -100% Δ
-   | - Potential savings of 23,041 KB ->
-   | - Minifying JavaScript files can reduce payload sizes and script
-     parse time. `Learn
-     more <https://developers.google.com/speed/docs/insights/MinifyResources>`__.
-
-   | **Enable text compression**
-   | - -86% Δ
-   | - Potential savings of 23,088 KB -> Potential savings of 3,112 KB
-   | - Text-based resources should be served with compression (gzip,
-     deflate or brotli) to minimize total network bytes. `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/text-compression>`__.
-
-   | **Avoid an excessive DOM size**
-   | - 0% Δ
-   | - 1,268 elements -> 1,268 elements
-   | - Browser engineers recommend pages contain fewer than ~1,500 DOM
-     elements. The sweet spot is a tree depth < 32 elements and fewer
-     than 60 children/parent element. A large DOM can increase memory
-     usage, cause longer `style
-     calculations <https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations>`__,
-     and produce costly `layout
-     reflows <https://developers.google.com/speed/articles/reflow>`__.
-     `Learn
-     more <https://developers.google.com/web/tools/lighthouse/audits/dom-size>`__.
+More tests can be carried out manually on JupyterLab branches and run weekly on the default branch in
+`jupyterlab/benchmarks <https://github.com/jupyterlab/benchmarks/#readme>`__ repository.
 
 Visual Regression and UI Tests
 ------------------------------
 
-As part of JupyterLab CI workflows, UI tests are run with visual regression checks. `Galata <https://github.com/jupyterlab/galata>`__ is used for UI testing. Galata provides a high level API to control and inspect JupyterLab UI programmatically, testing tools and CLI to manage tests and other tasks.
-
-UI tests are run for each commit into JupyterLab project in PRs or direct commits. Code changes can sometimes cause UI tests to fail for various reasons. After each test run, Galata generates a user friendly test result report which can be used to inspect failing UI tests. Result report shows the failure reason, call-stack up to the failure and detailed information on visual regression issues. For visual regression errors, reference image and test capture image, along with diff image generated during comparison are provided in the report. You can use these information to debug failing tests. Galata test report can be downloaded from GitHub Actions page for a UI test run. Test artifact is named ``ui-test-output`` and once you extract it, you can access the report by opening ``test/report/index.html`` in a browser window.
+As part of JupyterLab CI workflows, UI tests are run with visual regression checks.
+`Galata <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/galata>`__ is used for UI
+testing. Galata provides `Playwright <https://playwright.dev>`__ helpers to control and
+inspect JupyterLab UI programmatically.
+
+UI tests are run for each commit into JupyterLab project in PRs or direct commits. Code
+changes can sometimes cause UI tests to fail for various reasons. After each test run,
+Galata generates a user friendly test result report which can be used to inspect failing
+UI tests. Result report shows the failure reason, call-stack up to the failure and
+detailed information on visual regression issues. For visual regression errors, reference
+image and test capture image, along with diff image generated during comparison are
+provided in the report. You can use these information to debug failing tests. Galata test
+report can be downloaded from GitHub Actions page for a UI test run. Test artifact is
+named ``galata-report`` and once you extract it, you can access the report by launching
+a server to serve the files ``python -m http.server -d <path-to-extracted-report>``.
+Then open *http://localhost:8000* with your web browser.
 
 Main reasons for UI test failures are:
 
 1. **A visual regression caused by code changes**:
 
-   Sometimes unintentional UI changes are introduced by modifications to project source code. Goal of visual regression testing is to detect this kind of UI changes. If your PR / commit is causing visual regression, then debug and fix the regression caused. You can locally run and debug the UI tests to fix the visual regression. Follow the instructions in steps 5-7 of ``Adding a new UI test suite guide`` in `UI Testing documentation <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/galata/README.md#adding-a-new-ui-test-suite>`__ to locally debug and fix UI tests. Once you have a fix, you can push the change to your GitHub branch and test with GitHub actions.
+   Sometimes unintentional UI changes are introduced by modifications to project source
+   code. Goal of visual regression testing is to detect this kind of UI changes. If your
+   PR / commit is causing visual regression, then debug and fix the regression caused.
+   You can locally run and debug the UI tests to fix the visual regression. To debug your
+   test, you may run ``PWDEBUG=1 jlpm playwright test <path-to-test-file>``. Once you
+   have a fix, you can push the change to your GitHub branch and test with GitHub actions.
 
 2. **An intended update to user interface**:
 
@@ -669,16 +641,23 @@ Main reasons for UI test failures are:
 
    - ``please update galata snapshots``: A bot will push a new commit to your PR updating galata
      test snaphsots.
+   - ``please update documentation snapshots``: A bot will push a new commit to your PR updating
+     documentation test snapshots.
    - ``please update snapshots``: Combine the two previous comments effects.
 
-For more information on UI Testing, please read the `UI Testing developer documentation <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/galata/README.md>`__ and `Galata documentation <https://github.com/jupyterlab/galata/blob/main/README.md>`__.
+    The bot will react with +1 emoji to indicate that the run started and then comment
+    back once it concluded.
+
+For more information on UI Testing, please read the `UI Testing developer documentation <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/galata/README.md>`__
+and `Playwright documentation <https://playwright.dev/docs/intro>`__.
 
 Good Practices for Integration tests
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Here are some good practices to follow when writing integration tests:
 
-- Don't compare multiple screenshots in the same test; if the first comparison breaks, it will require running multiple times the CI workflow to fix all tests.
+- Don't compare multiple screenshots in the same test; if the first comparison breaks,
+  it will require running multiple times the CI workflow to fix all tests.
 
 Contributing to the debugger front-end
 --------------------------------------
@@ -850,15 +829,11 @@ Writing Documentation
 Documentation is written in Markdown and reStructuredText. In
 particular, the documentation on our Read the Docs page is written in
 reStructuredText. To ensure that the Read the Docs page builds, you'll
-need to install the documentation dependencies with ``conda``:
+need to install the documentation dependencies with ``pip``:
 
 .. code:: bash
 
-   conda env create -f docs/environment.yml
-
-.. code:: bash
-
-   conda activate jupyterlab_documentation
+   pip install -e ".[docs]"
 
 
 To test the docs run:
@@ -883,17 +858,17 @@ Or with ``jlpm``:
 Writing Style
 ^^^^^^^^^^^^^
 
--  The documentation should be written in the second person, referring
-   to the reader as "you" and not using the first person plural "we."
+-  Write documentation in the second person, referring
+   to the reader as "you". Do not use the first person plural "we."
    The author of the documentation is not sitting next to the user, so
    using "we" can lead to frustration when things don't work as
    expected.
 -  Avoid words that trivialize using JupyterLab such as "simply" or
    "just." Tasks that developers find simple or easy may not be for
    users.
--  Write in the active tense, so "drag the notebook cells..." rather
-   than "notebook cells can be dragged..."
--  The beginning of each section should begin with a short (1-2
+-  Write in the active tense. For example, "drag the notebook cells…" rather
+   than "notebook cells can be dragged…".
+-  The beginning of each section should begin with a short (1–2
    sentence) high-level description of the topic, feature or component.
 -  Use "enable" rather than "allow" to indicate what JupyterLab makes
    possible for users. Using "allow" connotes that we are giving them
@@ -905,36 +880,56 @@ User Interface Naming Conventions
 Documents, Files, and Activities
 """"""""""""""""""""""""""""""""
 
-Files are referred to as either files or documents, depending on the
-context.
+Refer to files as either files or documents, depending on the context.
 
-Documents are more human centered. If human viewing, interpretation,
-interaction is an important part of the experience, it is a document in
-that context. For example, notebooks and markdown files will often be
-referring to as documents unless referring to the file-ness aspect of it
+*Documents* are more human centered. If human viewing, interpretation,
+or interaction is an important part of the experience, use the term
+"document". For example, notebooks and Markdown files will often be
+referred to as documents except in the context of a file system
 (e.g., the notebook filename).
 
-Files are used in a less human-focused context. For example, we refer to
-files in relation to a file system or file name.
+Use the term *files* in a less human-focused context. For example,
+refer to files in relation to a file system or file name.
+
+*Activities* are either an opened document or another UI panel that is
+not related to a file, such as terminals, consoles or the inspector.
+
+Notebook Cells
+""""""""""""""
+
+A notebook contains *cells*, each of which have *input* and one or more
+*outputs*. When the user runs a cell, the kernel reads and executes the
+input and generates outputs. The notebook then displays the cell's output.
+The term *output* describes one of possibly multiple results of running a
+cell. *Cell output* describes the collective output of one cell. Use
+*outputs of all cells* to describe all outputs from all cells.
 
-Activities can be either a document or another UI panel that is not file
-backed, such as terminals, consoles or the inspector. An open document
-or file is an activity in that it is represented by a panel that you can
-interact with.
+Command Names
+"""""""""""""
+
+Command names appear in menus, in the Command Palette, and in toolbar buttons
+(where the name typically appears on hover).
+
+-  Keep command names short, concise, and unambiguous.
+-  Add an ellipsis (…) after any command name that requires more options. This
+   tells the user that they should expect a pop-up window to appear before they
+   execute the command.
+-  Commands should use verbs in the imperative case. Do not use articles with nouns.
+   For example, write "Clear Cell", not "Clear the Cell" or "Clearing Cell".
 
 Element Names
 """""""""""""
 
--  The generic content area of a tabbed UI is a panel, but prefer to
-   refer to the more specific name, such as “File browser.” Tab bars
-   have tabs which toggle panels.
--  The menu bar contains menu items, which have their own submenus.
--  The main work area can be referred to as the work area when the name
+-  The generic content area of a tabbed UI is a *panel*. Refer to a panel
+   by its most specific name, such as “File browser.” *Tab bars*
+   have *tabs* that let a user view different panels.
+-  The *menu bar* contains *menu items* that have their own *submenus*.
+-  Refer to the *main work area* as the work area when the name
    is unambiguous.
--  When describing elements in the UI, colloquial names are preferred
-   (e.g., “File browser” instead of “Files panel”).
+-  When describing elements in the UI, prefer colloquial names over
+   technical names. For example, use “File browser” instead of “Files panel”.
 
-The majority of names are written in lower case. These names include:
+Write most element names in lowercase. These names include:
 
 -  tab
 -  panel
@@ -950,19 +945,16 @@ The majority of names are written in lower case. These names include:
 -  cell inspector
 -  code console
 
-The following sections of the user interface should be in title case,
-directly quoting a word in the UI:
+Write the following sections of the user interface with one or more
+initial capitals, mirroring their use in the UI:
 
+-  Activity Bar
 -  File menu
 -  Files tab
 -  Running panel
 -  Tabs panel
 -  Simple Interface mode
 
-The capitalized words match the label of the UI element the user is
-clicking on because there does not exist a good colloquial name for the
-tool, such as “file browser” or “command palette”.
-
 See :ref:`interface` for descriptions of elements in the UI.
 
 The Jupyter Server Extension
@@ -1034,16 +1026,12 @@ them out against your copy of JupyterLab, you can easily do so using the
 ``link`` command:
 
 1. Make your changes and then build the external package
-2. Register a link to the modified external package
-
-   -  navigate to the external package dir and run ``jlpm link``
-
-3. Link JupyterLab to modded package
+2. Link JupyterLab to modded package
 
    -  navigate to top level of your JupyterLab repo, then run
-      ``jlpm link "<package-of-interest>"``
+      ``jlpm link <path-to-external-repo> --all``
 
-You can then (re)build JupyterLab (eg ``jlpm run build``) and your
+3. You can then (re)build JupyterLab (eg ``jlpm run build``) and your
 changes should be picked up by the build.
 
 To restore JupyterLab to its original state, you use the ``unlink``
@@ -1052,13 +1040,13 @@ command:
 1. Unlink JupyterLab and modded package
 
    -  navigate to top level of your JupyterLab repo, then run
-      ``jlpm unlink "<package-of-interest>"``
+      ``jlpm unlink <path-to-external-repo> --all``
 
 2. Reinstall original version of the external package in JupyterLab
 
    -  run ``jlpm install --check-files``
 
-You can then (re)build JupyterLab and everything should be back to
+3. You can then (re)build JupyterLab and everything should be back to
 default.
 
 Possible Linking Pitfalls
@@ -1098,6 +1086,9 @@ preparing them:
 -  Make sure the screenshot does not contain copyrighted material
    (preferable), or the license is allowed in our documentation and
    clearly stated.
+-  For screenshots, you should prefer creating visual tests. This allows
+   to update them dynamically. Those tests are defined in ``galata/test/documentation``
+   folder.
 -  If taking a png screenshot, use the Firefox or Chrome developer tools
    to do the following:
 
diff --git a/docs/source/developer/css.rst b/docs/source/developer/css.rst
index ec7178a88e2a..89d2cb4fac47 100644
--- a/docs/source/developer/css.rst
+++ b/docs/source/developer/css.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _css:
 
 CSS Patterns
@@ -70,7 +73,7 @@ CSS variable usage
 ^^^^^^^^^^^^^^^^^^
 
 JupyterLab includes a default set of CSS variables in the file
-`packages/theme-light-extension/style/variables.css <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/packages/theme-light-extension/style/variables.css>`_.
+`packages/theme-light-extension/style/variables.css <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/packages/theme-light-extension/style/variables.css>`_.
 
 To ensure consistent design in JupyterLab, all built-in and third party
 extensions should use these variables in their styles if at all
diff --git a/docs/source/developer/internationalization.rst b/docs/source/developer/internationalization.rst
index a3bc0642864f..c82d7fe80b77 100644
--- a/docs/source/developer/internationalization.rst
+++ b/docs/source/developer/internationalization.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Internationalization and Localization
 =====================================
 
@@ -9,18 +12,18 @@ Four elements are used to handle the internationalization of JupyterLab:
 - `language-packs <https://github.com/jupyterlab/language-packs>`_ repository: It contains
   the source strings, their translations, the language packs and the GitHub workflows to
   update and publish the translations.
-- `Crowdin project <https://crowdin.com/project/jupyterlab>`_: Crowdin is the cloud-based solution 
+- `Crowdin project <https://crowdin.com/project/jupyterlab>`_: Crowdin is the cloud-based solution
   that streamlines localization management for JupyterLab. This is the place where contributors
   can translate JupyterLab strings.
 - `jupyterlab-translate <https://github.com/jupyterlab/jupyterlab-translate>`_ repository: Python
   library defining helpers to deal with internationalization (e.g. extracting the strings).
-- `Cookiecutter template <https://github.com/jupyterlab/language-pack-cookiecutter>`_ repository: It
+- `Package template <https://github.com/jupyterlab/language-pack-cookiecutter>`_ repository: It
   defines the Python package template of a language pack.
 
 The *language-packs* repository is the main entry point. It interacts with Crowdin to publish
 newer source strings and get the latest translation. It also creates and updates the language packs.
-And finally it publishes them. All those actions are carried out using helpers defined in 
-``jupyterlab-translate`` and the cookiecutter template.
+And finally it publishes them. All those actions are carried out using helpers defined in
+``jupyterlab-translate`` and the package template.
 
 Workflows
 ---------
@@ -89,6 +92,8 @@ The workflow is as follow:
     requests updating the source strings need to be closed in order for the Crowdin integration to
     re-open the PR.
 
+.. _language-update:
+
 Language packs update
 ^^^^^^^^^^^^^^^^^^^^^
 
@@ -97,21 +102,21 @@ This is done by manually triggering the `Prepare language packs for release <htt
 
 There is one optional setting:
 
-- The new version in form *X.Y.postZ* - if not provided, the post number will be bumped.
+- The new version in form *X.Y.postZ* or a [hatch segment](https://hatch.pypa.io/latest/version/#supported-segments) - the default is `rev` that will bump the post number.
 
 .. image:: prep_language_packs.png
   :alt: The "Prepare language packs for release" workflow on GitHub Actions.
 
 The workflow is:
 
-1. Trigger the manual *Prepare language packs for release* workflow  
+1. Trigger the manual *Prepare language packs for release* workflow
 2. That workflow will open a new pull request with the changes to the language packs
 3. The validation workflow `Check language packs version <https://github.com/jupyterlab/language-packs/blob/master/.github/workflows/check_version.yml>`_ should pass on that pull request
 4. A maintainer needs to merge the pull request
 
 .. note::
 
-    The version policy for the language packs is to follow major and minor version numbers of 
+    The version policy for the language packs is to follow major and minor version numbers of
     JupyterLab and bumping the post number for any intermediate updates. The version
     of all language packs is identical to ease maintenance.
 
@@ -121,7 +126,7 @@ The workflow is:
 Language packs publication
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Each time a ``.bumpversion.cfg`` in any *language packs* is modified the `Create Release and publish packages <https://github.com/jupyterlab/language-packs/blob/master/.github/workflows/release_publish.yml>`_
+Each time package version is modified the `Create Release and publish packages <https://github.com/jupyterlab/language-packs/blob/master/.github/workflows/release_publish.yml>`_
 will be automatically triggered. Its steps are:
 
 1. Check that all language packs have identical versions
@@ -136,3 +141,17 @@ will be automatically triggered. Its steps are:
     Publication is done using jupyterlab-bot credentials on all PyPI projects.
 
     `Conda recipe <https://github.com/conda-forge/jupyterlab-language-packs-feedstock>`_ should be updated by the auto-tick bot of conda-forge.
+
+
+Adding a new language pack
+^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+This requires the following manual actions to be executed (in that order):
+
+1. Add the language on Crowdin
+2. Execute the :ref:`language-update` workflow
+3. Manually upload the package on PyPI
+4. Update the owner on PyPI to add jupyterlab-bot as maintainer
+5. Acknowledge the grant for the bot
+6. Update the `github action list <https://github.com/jupyterlab/language-packs/blob/814ee5589fd83ceaeb6ecaefa8ad2db741f3a2df/.github/workflows/release_publish.yml#L42>`_
+7. Update the `conda-forge variant list <https://github.com/conda-forge/jupyterlab-language-packs-feedstock/blob/master/recipe/conda_build_config.yaml>`_
diff --git a/docs/source/developer/patterns.rst b/docs/source/developer/patterns.rst
index d01edfeb5061..8965eeb7b9ed 100644
--- a/docs/source/developer/patterns.rst
+++ b/docs/source/developer/patterns.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Design Patterns
 ===============
 
diff --git a/docs/source/developer/performance.rst b/docs/source/developer/performance.rst
new file mode 100644
index 000000000000..9476418b1382
--- /dev/null
+++ b/docs/source/developer/performance.rst
@@ -0,0 +1,96 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+Performance tricks
+==================
+
+Windowed list
+-------------
+
+A list windowing algorithm is implemented in a dedicated widget ``WindowedList`` provided by ``@jupyterlab/ui-components``.
+
+This widget will have a DOM structure like this:
+
+.. code::html
+
+   <div class="jp-WindowedPanel-outer">
+      <div class="jp-WindowedPanel-inner">
+         <div class="jp-WindowedPanel-window">
+            <!-- Here will be the list of items in the viewport -->
+         </div>
+      </div>
+   </div>
+
+The reason for encapsulating the visible items in such tree comes from the need to position the
+current view correctly in a fake document that has the real height.
+
+Notebook documents
+------------------
+
+Performance analysis of notebook documents in JupyterLab point out to two main bottlenecks:
+editors style computation and rendered markdown with lots of math expressions. The best
+technique to alleviate those problems are to attach to the DOM only the cells in the viewport.
+However code cell outputs bring a huge constraint that their internal state is within the
+DOM node (e.g. the zoom level on a map view). So the outputs cannot be detached once displayed
+With those considerations in mind, here is the algorithm coded for the notebook windowing.
+
+.. note::
+
+    When initializing the view, the code cell outputs are scanned to detect if they contain
+    ``text/html`` output defining ``style`` and/or ``scripts`` elements. If they do, those
+    cells are rendered to ensure styles and JavaScript are applied as they may leak outside
+    their definition cell (e.g. injection of custom styles).
+
+When cell widgets are instantiated, their children are not created (i.e. the editor, the
+outputs,…) and they are not attached to the DOM. The view is updated on scroll events following:
+
+1. Get the scroll position in the notebook
+2. Get the cells range to be displayed
+3. Attach the cells in viewport to the notebook
+   a. Before attaching the cell, if it was never attached, instantiate its children.
+   b. For code cells previously attach, change its visibility and attach all children except the output area.
+   c. Add the cell widget to a resize observer that trigger and viewport update
+4. Detach cells that left the viewport
+   a. Remove cell widget from resize observer.
+   b. For code cells, the output area is not detached but hidden. All other children are detached.
+
+Due to the code cells being kept in the DOM, we need to update the data attribute
+``data-windowed-list-index`` when the cells list changes. This is required to attach at the
+correct position the cell when the viewport changes.
+
+The list windowing algorithm is coded in a dedicated widget ``WindowedList``. The notebook
+extends it and uses a specialized layout to deal with code cells, ``NotebookWindowedLayout``.
+The code cell layout is also customized ``CodeCellLayout`` to keep the output area attached
+but not the other children.
+
+.. warning::
+
+    The current implementation does not handle *iframe* well. In Chrome, the iframe states are
+    reset every time they leave and renter the viewport. In Firefox, it does not happen when
+    scrolling comes from mouse scrolls. But the reset happens when jumping to a specific position
+    that was out of viewport; e.g. searching for a word or navigating to a heading.
+
+Side effect of the implementation
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- It is still possible to search cell outputs DOM nodes. But when turning on that option,
+  the UI may freeze as all outputs never rendered will need to be rendered.
+- The cell editor is available only for cell that have been at least once in the viewport.
+  The editor is not destroyed when the cells are out of the viewport. So its state can be modified.
+- HTML element measurements cannot capture margins. Therefore the cell containers should not use it.
+  Padding is the solution as measurements is limited to border sizing. This is because top and bottom
+  margins between adjacent elements `can be collapsed <https://developer.mozilla.org/en-US/docs/Web/CSS/margin#margin_collapsing>`__
+  by the web browsers.
+
+Viewport state
+^^^^^^^^^^^^^^
+
+Each cell widget implements those three attributes:
+
+- ``isPlaceholder`` will be false if the cell has never been attached (and therefore have no children instantiated).
+- ``ready`` returns a promise that resolves when a cell is fully instantiated. After that the editor and any children will exist.
+- ``inViewport`` whether the cell is currently in viewport or not. You can listen to the signal inViewportChanged.
+
+The notebook widget has the following helper :
+
+- ``scrollToItem`` to scroll to a specific cell index. Like for scrolling an element into view, various mode are available.
diff --git a/docs/source/developer/repo.rst b/docs/source/developer/repo.rst
index 564cb3e7216e..d97d4b700a86 100644
--- a/docs/source/developer/repo.rst
+++ b/docs/source/developer/repo.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _developer-guide:
 
 General Codebase Orientation
@@ -10,7 +13,7 @@ In particular, there are many TypeScript packages and a single Python package.
 The Python package contains server-side code, and also distributes
 the bundled-and-compiled TypeScript code.
 
-See the `Contributing Guidelines <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md>`__
+See the `Contributing Guidelines <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md>`__
 for detailed developer installation instructions.
 
 Directories
@@ -22,7 +25,7 @@ are described here.
 Python package: ``jupyterlab/``
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-This, along with the ``setup.py``, comprises the Python code for the project.
+This, along with the ``pyproject.toml``, comprises the Python code for the project.
 This includes the notebook server extension, JupyterLab's command line interface,
 entrypoints, and Python tests.
 
@@ -58,7 +61,7 @@ The ``lab-dev`` endpoint is the equivalent of checking out the repo locally and
 The ``lab-spliced`` endpoint is the equivalent of building JupyterLab in spliced mode and running ``jupyter lab``.
 See the `Development workflow for source extensions <../extension/extension_dev.html#development-workflow-for-source-extensions>`__ for more information on spliced mode.
 
-Build utilities: ``builtutils/``
+Build utilities: ``buildutils/``
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 An ``npm`` package that contains several utility scripts for managing
@@ -83,7 +86,7 @@ Documentation: ``docs/``
 ^^^^^^^^^^^^^^^^^^^^^^^^
 
 This directory contains the Sphinx project for this documentation.
-You can create an environment to build the documentation using ``conda create -f environment.yml``,
+You can install the dependencies for building the documentation using ``pip install .[docs]``,
 and you can build the documentation by running ``make html``.
 The entry point to the built docs will then be in ``docs/build/index.html``.
 
diff --git a/docs/source/extension/documents.rst b/docs/source/extension/documents.rst
index 43eaa4b3679e..26dde156fb1e 100644
--- a/docs/source/extension/documents.rst
+++ b/docs/source/extension/documents.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _documents:
 
 Documents
@@ -19,10 +22,10 @@ Overview of document architecture
 ---------------------------------
 
 A 'document' in JupyterLab is represented by a model instance implementing the
-`IModel <../api/interfaces/docregistry.documentregistry.imodel.html>`__ interface.
+`IModel <../api/interfaces/docregistry.DocumentRegistry.IModel.html>`__ interface.
 The model interface is intentionally fairly small, and concentrates on representing
 the data in the document and signaling changes to that data. Each model has an
-associated `context <../api/interfaces/docregistry.documentregistry.icontext.html>`__
+associated `context <../api/interfaces/docregistry.DocumentRegistry.IContext.html>`__
 instance as well. The context for a model is the bridge between the internal data
 of the document, stored in the model, and the file metadata and operations possible
 on the file, such as save and revert. Since many objects will need both the context
@@ -33,41 +36,27 @@ representing the file. For example, a notebook can be opened with a notebook mod
 and with a text model. Different models for the same file path do not directly
 communicate with each other.
 
-Models contain an instance of `ModelDB <../api/classes/observables.modeldb-1.html>`__
-that acts as data storage for the model's content. In JupyterLab 3.1, we introduced
-the package ``@jupyterlab/shared-models`` to swap ``ModelDB`` as a data storage
-to make 'documents' collaborative. We implemented these shared models using
-`Yjs <https://docs.yjs.dev>`_, a high-performance CRDT for building collaborative applications
-that automatically sync.
-Starting with JupyterLab 3.6, the shared models have been extracted in the external package
+Models contain an instance of `ISharedDocument <https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedDocument.html>`_
+that acts as data storage for the model's content. As of JupyterLab 4, the default data
+storage implementation is a `YDocument <https://jupyter-ydoc.readthedocs.io/en/latest/api/classes/YDocument-1.html>`_
+based on `Yjs <https://docs.yjs.dev>`_, a high-performance CRDT for building collaborative
+applications. Both the interface and the implementation are provided by the package
 `@jupyter/ydoc <https://github.com/jupyter-server/jupyter_ydoc>`_.
-At the moment, models contain both a ``ModelDB`` and a ``Shared Model`` instance, so it is
-possible to access ``ModelDB`` yet. But starting with JupyterLab 4, the ``ModelDB`` storage will be removed.
 
-`Document widgets <../api/classes/docregistry.documentregistry-1.html>`__ represent
+`Document widgets <../api/classes/docregistry.DocumentWidget-1.html>`__ represent
 a view of a document model. There can be multiple document widgets associated with
 a single document model, and they naturally stay in sync with each other since they
 are views on the same underlying data model.
 
-`Shared Models <https://jupyter-ydoc.readthedocs.io/en/latest/api/index.html>`__ are models
-using Yjs’ shared types as a data structures instead of ``ModelDB``.
-
-The `Document Registry <../api/classes/docregistry.documentregistry-1.html>`__
+The `Document Registry <../api/classes/docregistry.DocumentRegistry-1.html>`__
 is where document types and factories are registered. Plugins can
 require a document registry instance and register their content types
 and providers.
 
-The `Document Manager <../api/classes/docmanager.documentmanager-1.html>`__
+The `Document Manager <../api/classes/docmanager.DocumentManager-1.html>`__
 uses the Document Registry to create models and widgets for documents.
 The Document Manager handles the lifecycle of documents for the application.
 
-The `Document Provider <../api/classes/docprovider.websocketproviderwithlocks-1.html>`__
-is a WebSocket provider that syncs documents through a new end-point (``api/yjs``)
-in the JupyterLab server. `Providers <https://docs.yjs.dev/ecosystem/connection-provider>`_
-abstract Yjs from the network technology your application uses. They sync Yjs
-documents through a communication protocol or a database. Most providers have
-in common that they use the concept of room names to connect Yjs documents.
-
 
 Document Registry
 -----------------
@@ -79,8 +68,13 @@ Document Registry
 -  widget factories for specific model factories
 -  widget extension factories
 
-`Widget Factories <../api/classes/docregistry.documentregistry-1.html#addwidgetfactory>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+.. note::
+
+   We recommend you to look at the `document example <https://github.com/jupyterlab/extension-examples/tree/main/documents>`__
+   to help understanding a pratical case.
+
+`Widget Factories <../api/classes/docregistry.DocumentRegistry-1.html#addWidgetFactory>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Create a widget for a given file.
 
@@ -88,16 +82,16 @@ Create a widget for a given file.
 
 -  The notebook widget factory that creates NotebookPanel widgets.
 
-`Model Factories <../api/classes/docregistry.documentregistry-1.html#addmodelfactory>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Model Factories <../api/classes/docregistry.DocumentRegistry-1.html#addModelFactory>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Create a model for a given file.
 
 Models are generally differentiated by the contents options used to
 fetch the model (e.g. text, base64, notebook).
 
-`Widget Extension Factories <../api/classes/docregistry.documentregistry-1.html#addwidgetextension>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Widget Extension Factories <../api/classes/docregistry.DocumentRegistry-1.html#addWidgetExtension>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Adds additional functionality to a widget type. An extension instance is
 created for each widget instance, enabling the extension to add
@@ -108,11 +102,13 @@ functionality to each widget or observe the widget and/or its context.
 -  The ipywidgets extension that is created for NotebookPanel widgets.
 -  Adding a button to the toolbar of each NotebookPanel widget.
 
-`File Types <../api/classes/docregistry.documentregistry-1.html#addfiletype>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`File Types <../api/classes/docregistry.DocumentRegistry-1.html#addFileType>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Adds a new file type to be understood through a mimetype and file extensions within JupyterLab.
 
-`Document Models <../api/interfaces/docregistry.documentregistry.imodel.html>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Document Models <../api/interfaces/docregistry.DocumentRegistry.IModel.html>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Created by the model factories and passed to widget factories and widget
 extension factories. Models are the way in which we interact with the
@@ -120,8 +116,8 @@ data of a document. For a simple text file, we typically only use the
 ``to/fromString()`` methods. A more complex document like a Notebook
 contains more points of interaction like the Notebook metadata.
 
-`Document Contexts <../api/interfaces/docregistry.documentregistry.icontext.html>`__
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+`Document Contexts <../api/interfaces/docregistry.DocumentRegistry.IContext.html>`__
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Created by the Document Manager and passed to widget factories and
 widget extensions. The context contains the model as one of its
diff --git a/docs/source/extension/extension_dev.rst b/docs/source/extension/extension_dev.rst
index 013cef67ed86..901a878aea14 100644
--- a/docs/source/extension/extension_dev.rst
+++ b/docs/source/extension/extension_dev.rst
@@ -1,12 +1,39 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _developer_extensions:
 
-Extension Developer Guide
-=========================
+Develop Extensions
+==================
 
 The JupyterLab application is comprised of a core application object and a set of extensions. JupyterLab extensions provide nearly every function in JupyterLab, including notebooks, document editors and viewers, code consoles, terminals, themes, the file browser, contextual help system, debugger, and settings editor. Extensions even provide more fundamental parts of the application, such as the menu system, status bar, and the underlying communication mechanism with the server.
 
 A JupyterLab extension is a package that contains a number of JupyterLab plugins. We will discuss how to write a plugin, then how to package together a set of plugins into a JupyterLab extension.
 
+See the sections below for more detailed information, or browse the rest of this page for an overview.
+
+.. warning::
+    Your extensions may break with new releases of JupyterLab. As noted in :ref:`versioning_notes`,
+    JupyterLab development and release cycles follow semantic versioning, so we recommend planning
+    your development process to account for possible future breaking changes that may disrupt users
+    of your extensions. Consider documenting your maintenance plans to users in your project, or
+    setting an upper bound on the version of JupyterLab your extension is compatible with in your
+    project's package metadata.
+
+.. toctree::
+   :maxdepth: 1
+
+   extension_points
+   ui_components
+   documents
+   notebook
+   virtualdom
+   ui_helpers
+   internationalization
+   identity
+   extension_tutorial
+   extension_migration
+
 Other resources
 ---------------
 
@@ -22,14 +49,13 @@ We provide a set of guides to get started writing extensions for JupyterLab:
 - :ref:`developer-extension-points`: A list of the most common JupyterLab extension points.
 - Another common pattern for extending JupyterLab document widgets with application plugins is covered in :ref:`documents`.
 
-Cookiecutters
-^^^^^^^^^^^^^
+Extension template
+^^^^^^^^^^^^^^^^^^
 
-We provide several cookiecutters to create JupyterLab extensions:
+We provide several templates to create JupyterLab extensions:
 
-- `extension-cookiecutter-ts <https://github.com/jupyterlab/extension-cookiecutter-ts>`_: Create a JupyterLab extension in TypeScript
-- `extension-cookiecutter-js <https://github.com/jupyterlab/extension-cookiecutter-js>`_: Create a JupyterLab extension in JavaScript
-- `mimerender-cookiecutter-ts <https://github.com/jupyterlab/mimerender-cookiecutter-ts>`_: Create a MIME Renderer JupyterLab extension in TypeScript
+- `extension-template <https://github.com/jupyterlab/extension-template>`_: Create a JupyterLab extension using `copier <https://copier.readthedocs.io/>`_
+- [DEPRECATED] `extension-cookiecutter-ts <https://github.com/jupyterlab/extension-cookiecutter-ts>`_: Create a JupyterLab extension using `cookiecutter <https://cookiecutter.readthedocs.io>`_ (use the copier template instead).
 
 API Reference Documentation
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -37,22 +63,22 @@ API Reference Documentation
 Here is some autogenerated API documentation for JupyterLab and Lumino packages:
 
 - `JupyterLab API Documentation <../api/>`_
-- `Lumino API Documentation <https://lumino.readthedocs.io/en/1.x/api/>`_
-
+- `Lumino API Documentation <https://lumino.readthedocs.io/en/latest/api/index.html>`_
 
 Overview of Extensions
 ----------------------
 
 A JupyterLab plugin is the basic unit of extensibility in JupyterLab. An extension is a package that contains one or more JupyterLab plugins. Extensions can be distributed in two ways:
 
-- A *source extension* is a JavaScript (npm) package that exports one or more plugins. Installing a source extension requires a user to rebuild JupyterLab. This rebuilding step requires Node.js and may take a lot of time and memory, so some users may not be able to install a source extension. However, the total size of the JupyterLab code delivered to a user's browser may be reduced compared to using prebuilt extensions. See :ref:`deduplication` for the technical reasons for rebuilding JupyterLab when a source extension is installed.
-- A *prebuilt extension* (new in JupyterLab 3.0) distributes a bundle of JavaScript code prebuilt from a source extension that can be loaded into JupyterLab without rebuilding JupyterLab. In this case, the extension developer uses tools provided by JupyterLab to compile a source extension into a JavaScript bundle that includes the non-JupyterLab JavaScript dependencies, then distributes the resulting bundle in, for example, a Python pip or conda package. Installing a prebuilt extensions does not require Node.js.
+- A *prebuilt extension* (since JupyterLab 3.0) distributes a bundle of JavaScript code prebuilt from a source extension that can be loaded into JupyterLab without rebuilding JupyterLab. In this case, the extension developer uses tools provided by JupyterLab to compile a source extension into a JavaScript bundle that includes the non-JupyterLab JavaScript dependencies, then distributes the resulting bundle in, for example, a Python pip or conda package. Installing a prebuilt extensions does not require Node.js.
+- [DEPRECATED] A *source extension* is a JavaScript (npm) package that exports one or more plugins. Installing a source extension requires a user to rebuild JupyterLab. This rebuilding step requires Node.js and may take a lot of time and memory, so some users may not be able to install a source extension. However, the total size of the JupyterLab code delivered to a user's browser may be reduced compared to using prebuilt extensions. See :ref:`deduplication` for the technical reasons for rebuilding JupyterLab when a source extension is installed.
 
 An extension can be published both as a source extension on NPM and as a prebuilt extension (e.g., published as a Python package). In some cases, system administrators may even choose to install a prebuilt extension by directly copying the prebuilt bundle to an appropriate directory, circumventing the need to create a Python package. If a source extension and a prebuilt extension with the same name are installed in JupyterLab, the prebuilt extension takes precedence.
 
-Because prebuilt extensions do not require a JupyterLab rebuild, they have a distinct advantage in multiuser systems where JupyterLab is installed at the system level. On such systems, only the system administrator has permissions to rebuild JupyterLab and install source extensions. Since prebuilt extensions can be installed at the per-user level, the per-environment level, or the system level, each user can have their own separate set of prebuilt extensions that are loaded dynamically in their browser on top of the system-wide JupyterLab.
+Because prebuilt extensions do not require a JupyterLab rebuild, they have a distinct advantage in multi-user systems where JupyterLab is installed at the system level. On such systems, only the system administrator has permissions to rebuild JupyterLab and install source extensions. Since prebuilt extensions can be installed at the per-user level, the per-environment level, or the system level, each user can have their own separate set of prebuilt extensions that are loaded dynamically in their browser on top of the system-wide JupyterLab.
 
 .. tip::
+
    We recommend publishing prebuilt extensions in Python packages for user convenience.
 
 Plugins
@@ -74,6 +100,7 @@ An application plugin is a JavaScript object with a number of metadata fields. A
 
    const plugin: JupyterFrontEndPlugin<MyToken> = {
      id: 'my-extension:plugin',
+     description: 'Provides a new service.',
      autoStart: true,
      requires: [ILabShell, ITranslator],
      optional: [ICommandPalette],
@@ -84,6 +111,7 @@ An application plugin is a JavaScript object with a number of metadata fields. A
 The ``id`` and ``activate`` fields are required and the other fields may be omitted. For more information about how to use the ``requires``, ``optional``, or ``provides`` fields, see :ref:`services`.
 
 - ``id`` is a required unique string. The convention is to use the NPM extension package name, a colon, then a string identifying the plugin inside the extension.
+- ``description`` is an optional string. It allows to document the purpose of a plugin.
 - ``autostart`` indicates whether your plugin should be activated at application startup. Typically this should be ``true``. If it is ``false`` or omitted, your plugin will be activated when any other plugin requests the token your plugin is providing.
 - ``requires`` and ``optional`` are lists of :ref:`tokens <tokens>` corresponding to services other plugins provide. These services will be given as arguments to the ``activate`` function when the plugin is activated. If a ``requires`` service is not registered with JupyterLab, an error will be thrown and the plugin will not be activated.
 - ``provides`` is the :ref:`token <tokens>` associated with the service your plugin is providing to the system. If your plugin does not provide a service to the system, omit this field and do not return a value from your ``activate`` function.
@@ -147,18 +175,18 @@ A pattern in core JupyterLab is to create and export a token from a third packag
 
 .. _rendermime:
 
-Mime Renderer Plugins
+MIME Renderer Plugins
 ^^^^^^^^^^^^^^^^^^^^^
 
-Mime Renderer plugins are a convenience for creating a plugin
-that can render mime data in a notebook and files of the given mime type. Mime renderer plugins are more declarative and more restricted than standard plugins.
+MIME Renderer plugins are a convenience for creating a plugin
+that can render mime data in a notebook and files of the given mime type. MIME renderer plugins are more declarative and more restricted than standard plugins.
 A mime renderer plugin is an object with the fields listed in the
-`rendermime-interfaces IExtension <../api/interfaces/rendermime_interfaces.irendermime.iextension.html>`__
+`rendermime-interfaces IExtension <../api/interfaces/rendermime_interfaces.IRenderMime.IExtension.html>`__
 object.
 
-JupyterLab has a `pdf mime renderer extension <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages/pdf-extension>`__, for example. In core JupyterLab, this is used to view pdf files and view pdf data mime data in a notebook.
+JupyterLab has a `pdf mime renderer extension <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages/pdf-extension>`__, for example. In core JupyterLab, this is used to view pdf files and view pdf data mime data in a notebook.
 
-We have a `mime renderer tutorial <https://github.com/jupyterlab/jupyterlab-mp4>`__  walking through creating a mime renderer extension which adds mp4 video rendering to JupyterLab. We also have a `cookiecutter for mime renderer extensions <https://github.com/jupyterlab/mimerender-cookiecutter-ts>`__  in TypeScript.
+We have a `MIME renderer example <https://github.com/jupyterlab/extension-examples/tree/master/mimerenderer>`__  walking through creating a mime renderer extension which adds mp4 video rendering to JupyterLab. The `extension template <https://github.com/jupyterlab/extension-template>`_ supports MIME renderer extensions.
 
 The mime renderer can update its data by calling ``.setData()`` on the
 model it is given to render. This can be used for example to add a
@@ -171,13 +199,13 @@ document can then be saved by the user in the usual manner.
 Theme plugins
 ^^^^^^^^^^^^^
 
-A theme is a special application plugin that registers a theme with the ``ThemeManager`` service. Theme CSS assets are specially bundled in an extension (see :ref:`themePath`) so they can be unloaded or loaded as the theme is activated. Since CSS files referenced by the ``style`` or ``styleModule`` keys are automatically bundled and loaded on the page, the theme files should not be referenced by these keys. 
+A theme is a special application plugin that registers a theme with the ``ThemeManager`` service. Theme CSS assets are specially bundled in an extension (see :ref:`themePath`) so they can be unloaded or loaded as the theme is activated. Since CSS files referenced by the ``style`` or ``styleModule`` keys are automatically bundled and loaded on the page, the theme files should not be referenced by these keys.
 
 The extension package containing the theme plugin must include all static assets that are referenced by ``@import`` in its theme CSS files. Local URLs can be used to reference files relative to the location of the referring sibling CSS files. For example ``url('images/foo.png')`` or ``url('../foo/bar.css')`` can be used to refer local files in the theme. Absolute URLs (starting with a ``/``) or external URLs (e.g. ``https:``) can be used to refer to external assets.
 
-See the `JupyterLab Light Theme <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages/theme-light-extension>`__ for an example.
+See the `JupyterLab Light Theme <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages/theme-light-extension>`__ for an example.
 
-See the `TypeScript theme cookiecutter <https://github.com/jupyterlab/theme-cookiecutter>`__ for a quick start to developing a theme plugin.
+See the `TypeScript extension template <https://github.com/jupyterlab/extension-template>`__ (choosing ``theme`` as ``kind`` ) for a quick start to developing a theme plugin.
 
 .. _source_extensions:
 
@@ -186,13 +214,7 @@ Source Extensions
 
 A source extension is a JavaScript (npm) package that exports one or more plugins. All JupyterLab extensions are developed as source extensions (for example, prebuilt extensions are built from source extensions).
 
-A source extension has metadata in the ``jupyterlab`` field of its ``package.json`` file. The `JSON schema <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/builder/metadata_schema.json>`__ for the metadata is distributed in the ``@jupyterlab/builder`` package.
-
-If you would like publish your source extension to npm and want users to be able to install your source extension, we recommend including the npm keyword ``jupyterlab-extension`` in ``package.json``. This enables JupyterLab's extension manager to find your extension and display it for users in its graphical interface::
-
-       "keywords": [
-         "jupyterlab-extension"
-       ],
+A source extension has metadata in the ``jupyterlab`` field of its ``package.json`` file. The `JSON schema <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/builder/metadata_schema.json>`__ for the metadata is distributed in the ``@jupyterlab/builder`` package.
 
 We will talk about each ``jupyterlab`` metadata field in ``package.json`` for source extensions below.
 
@@ -219,7 +241,7 @@ The ``jupyterlab.extension`` field signifies that the package exports one or mor
 
 .. _mimeExtension:
 
-Mime Renderer Plugins
+MIME Renderer Plugins
 ^^^^^^^^^^^^^^^^^^^^^
 
 The ``jupyterlab.mimeExtension`` field signifies that the package exports mime renderer plugins. Like the ``jupyterlab.extension`` field, the value can be a boolean (indicating a mime renderer plugin or list of mime renderer plugins is the default export from the ``main`` field), or a string, which is the relative path to the module exporting (as the default export) one or more mime renderer plugins.
@@ -257,14 +279,16 @@ For example, the JupyterLab ``filebrowser-extension`` package exports the ``@jup
           "schemaDir": "schema",
         }
 
-The file browser setting schema file (which specifies some default keyboard shortcuts and other settings for the filebrowser) is located in ``schema/browser.json`` (see `here <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/packages/filebrowser-extension/schema/browser.json>`__).
+The file browser setting schema file (which specifies some default keyboard shortcuts and other settings for the filebrowser) is located in ``schema/browser.json`` (see `here <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/packages/filebrowser-extension/schema/browser.json>`__).
 
 See the
-`fileeditor-extension <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages/fileeditor-extension>`__
+`fileeditor-extension <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages/fileeditor-extension>`__
 for another example of an extension that uses settings.
 
 Please ensure that the schema files are included in the ``files`` metadata in ``package.json``.
 
+When declaring dependencies on JupyterLab packages, use the ``^`` operator before a package version so that the build system installs the newest patch or minor version for a given major version. For example, ``^4.0.0`` will install version 4.0.0, 4.0.1, 4.1.0, etc.
+
 A system administrator or user can override default values provided in a plugin's settings schema file with the :ref:`overrides.json <overridesjson>` file.
 
 .. _disabledExtensions:
@@ -503,7 +527,7 @@ Custom webpack configuration can be used to enable webpack features, configure a
       }
     };
 
-This custom config will be merged with the `prebuilt extension config <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/builder/src/extensionConfig.ts>`_
+This custom config will be merged with the `prebuilt extension config <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/builder/src/extensionConfig.ts>`_
 when building the prebuilt extension.
 
 .. _prebuilt_dev_workflow:
@@ -537,14 +561,14 @@ If you are using TypeScript, the TypeScript compiler would complain because the
 
 When adding the path to find JupyterLab dependencies, it may cause troubles with other dependencies (like lumino or react) in your project because JupyterLab packages will take its dependencies from JupyterLab ``node_modules`` folder. In contrast, your packages will take them from your ``node_modules`` folder. To solve this problem, you’ll need to add the dependencies with conflicts to ``resolutions`` in your ``package.json``. This way, both projects (JupyterLab and your extension) use the same version of the duplicated dependencies.
 
-We provide a `cookiecutter <https://github.com/jupyterlab/extension-cookiecutter-ts>`_ that handles all of the scaffolding for an extension author, including the shipping of appropriate data files, so that when the user installs the package, the prebuilt extension ends up in ``share/jupyter/labextensions``
+We provide a `extension template <https://github.com/jupyterlab/extension-template>`_ that handles all of the scaffolding for an extension author, including the shipping of appropriate data files, so that when the user installs the package, the prebuilt extension ends up in ``share/jupyter/labextensions``
 
 .. _distributing_prebuilt_extensions:
 
 Distributing a prebuilt extension
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Prebuilt extensions can be distributed by any system that can copy the prebuilt assets into an appropriate location where JupyterLab can find them. The `official extension cookiecutter <https://github.com/jupyterlab/extension-cookiecutter-ts>`_ shows how to distribute prebuilt extensions via Python pip or conda packages. A system package manager, or even just an administrative script that copies directories, could be used as well.
+Prebuilt extensions can be distributed by any system that can copy the prebuilt assets into an appropriate location where JupyterLab can find them. The `official extension template <https://github.com/jupyterlab/extension-template>`_ shows how to distribute prebuilt extensions via Python pip or conda packages. A system package manager, or even just an administrative script that copies directories, could be used as well.
 
 To distribute a prebuilt extension, copy its :ref:`output directory <outputDir>` to a location where JupyterLab will find it, typically  ``<sys-prefix>/share/jupyter/labextensions/<package-name>``, where ``<package-name>`` is the JavaScript package name in the ``package.json``. For example, if your JavaScript package name is ``@my-org/my-package``, then the appropriate directory would be ``<sys-prefix>/share/jupyter/labextensions/@my-org/my-package``.
 
@@ -569,7 +593,58 @@ This ``install.json`` file is used by JupyterLab to help a user know how to mana
 * ``packageName``: This is the package name of the prebuilt extension in the package manager above, which may be different than the package name in ``package.json``.
 * ``uninstallInstructions``: This is a short block of text giving the user instructions for uninstalling the prebuilt extension. For example, it might instruct them to use a system package manager or talk to a system administrator.
 
+.. _dev_trove_classifiers:
+
+PyPI Trove Classifiers
+""""""""""""""""""""""
+
+Extensions distributed as Python packages may declare additional metadata in the form of
+`trove classifiers <https://pypi.org/classifiers>`__. These improve the browsing
+experience for users on `PyPI <https://pypi.org/search>`__. While including the license,
+development status, Python versions supported, and other topic classifiers are useful
+for many audiences, the following classifiers are specific to Jupyter and JupyterLab.
+
+.. code-block::
+
+    Framework :: Jupyter
+    Framework :: Jupyter :: JupyterLab
+    Framework :: Jupyter :: JupyterLab :: 1
+    Framework :: Jupyter :: JupyterLab :: 2
+    Framework :: Jupyter :: JupyterLab :: 3
+    Framework :: Jupyter :: JupyterLab :: 4
+    Framework :: Jupyter :: JupyterLab :: Extensions
+    Framework :: Jupyter :: JupyterLab :: Extensions :: Mime Renderers
+    Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt
+    Framework :: Jupyter :: JupyterLab :: Extensions :: Themes
+
+Include each relevant classifier (and its parents) to help describe what your package
+provides to prospective users in your ``setup.py``, ``setup.cfg``, or ``pyproject.toml``.
+In particular ``Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt`` is used by
+the extension manager to get the available extensions from PyPI.org.
+
+.. hint::
+
+    For example, a theme, only compatible with JupyterLab 3, and distributed as
+    a ready-to-run, prebuilt extension might look like:
+
+    .. code-block:: python
+
+        # setup.py
+        setup(
+            # the rest of the package's metadata
+            # ...
+            classifiers=[
+                "Framework :: Jupyter",
+                "Framework :: Jupyter :: JupyterLab",
+                "Framework :: Jupyter :: JupyterLab :: 3",
+                "Framework :: Jupyter :: JupyterLab :: Extensions",
+                "Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt",
+                "Framework :: Jupyter :: JupyterLab :: Extensions :: Themes",
+            ]
+        )
 
+    This would be discoverable from, for example, a
+    `PyPI search for theme extensions <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions+%3A%3A+Themes>`__.
 
 .. _source_dev_workflow:
 
@@ -582,8 +657,8 @@ While authoring a source extension, you can use the command:
 
 .. code-block:: bash
 
-    npm install   # install npm package dependencies
-    npm run build  # optional build step if using TypeScript, babel, etc.
+    jlpm install   # install npm package dependencies
+    jlpm run build  # optional build step if using TypeScript, babel, etc.
     jupyter labextension install  # install the current directory as an extension
 
 This causes the builder to re-install the source folder before building
@@ -597,7 +672,7 @@ included in ``jupyter labextension list``.
 
 When using local extensions and linked packages, you can run the command
 
-::
+.. code-block:: shell
 
     jupyter lab --watch
 
@@ -607,11 +682,14 @@ the CSS files) are watched by the WebPack process. This means that if
 your extension is in TypeScript you'll have to run a ``jlpm run build``
 before the changes will be reflected in JupyterLab. To avoid this step
 you can also watch the TypeScript sources in your extension which is
-usually assigned to the ``tsc -w`` shortcut. If WebPack doesn't seem to
+usually assigned to the ``tsc -w`` shortcut. If webpack doesn't seem to
 detect the changes, this can be related to `the number of available watches <https://github.com/webpack/docs/wiki/troubleshooting#not-enough-watchers>`__.
 
 Note that the application is built against **released** versions of the
-core JupyterLab extensions. If your extension depends on JupyterLab
+core JupyterLab extensions. You should specify the version using the ``^``
+operator, such as ``^4.0.0``, so that the build system can use newer minor and patch
+versions of a package with a particular major version.
+If your extension depends on JupyterLab
 packages, it should be compatible with the dependencies in the
 ``jupyterlab/static/package.json`` file.  Note that building will always use the latest JavaScript packages that meet the dependency requirements of JupyterLab itself and any installed extensions.  If you wish to test against a
 specific patch release of one of the core JupyterLab packages you can
@@ -620,7 +698,7 @@ dependencies.
 
 If you want to test a source extension against the unreleased versions of JupyterLab, you can run the command
 
-::
+.. code-block:: shell
 
     jupyter lab --watch --splice-source
 
@@ -650,24 +728,6 @@ not enabled in our build configuration. To build a compatible package set
 ``output.libraryTarget`` to ``"commonjs2"`` in your Webpack configuration.
 (see `this <https://github.com/saulshanabrook/jupyterlab-webpack>`__ example repo).
 
-Another option to try out your extension with a local version of JupyterLab is to add it to the
-list of locally installed packages and to have JupyterLab register your extension when it starts up.
-
-You can do this by adding your extension to the ``jupyterlab.externalExtensions`` key
-in the ``dev_mode/package.json`` file. It should be a mapping
-of extension name to version, just like in ``dependencies``. Then run ``jlpm run integrity``
-and these extensions should be added automatically to the ``dependencies`` and pulled in.
-
-When you then run ``jlpm run build && jupyter lab --dev`` or ``jupyter lab --dev --watch`` this extension
-will be loaded by default. For example, this is how you can add the Jupyter Widgets
-extensions:
-
-::
-
-    "externalExtensions": {
-      "@jupyter-widgets/jupyterlab-manager": "2.0.0"
-    },
-
 If you publish your extension on ``npm.org``, users will be able to install
 it as simply ``jupyter labextension install <foo>``, where ``<foo>`` is
 the name of the published ``npm`` package. You can alternatively provide a
@@ -683,15 +743,16 @@ We encourage extension authors to add the `jupyterlab-extension GitHub topic
 .. _testing_with_jest:
 
 Testing your extension
-^^^^^^^^^^^^^^^^^^^^^^
+----------------------
+
+.. note::
+
+    We highly recommend using the `extension template <https://github.com/jupyterlab/extension-template>`_ to set up tests configuration.
 
 There are a number of helper functions in ``testutils`` in this repo (which
 is a public ``npm`` package called ``@jupyterlab/testutils``) that can be used when
 writing tests for an extension.  See ``tests/test-application`` for an example
-of the infrastructure needed to run tests.  There is a ``karma`` config file
-that points to the parent directory's ``karma`` config, and a test runner,
-``run-test.py`` that starts a Jupyter server.
-
+of the infrastructure needed to run tests.
 
 If you are using `jest <https://jestjs.io/>`__ to test your extension, you will
 need to transpile the jupyterlab packages to ``commonjs`` as they are using ES6 modules
@@ -699,48 +760,39 @@ that ``node`` does not support.
 
 To transpile jupyterlab packages, you need to install the following package:
 
-::
+.. code-block:: shell
 
    jlpm add --dev jest @types/jest ts-jest @babel/core@^7 @babel/preset-env@^7
 
-Then in `jest.config.js`, you will specify to use babel for js files and ignore
+Then in ``jest.config.js``, you will specify to use babel for js files and ignore
 all node modules except the ES6 modules:
 
-::
-
-   const esModules = [
-     '@jupyterlab/',
-     'lib0',
-     'y\\-protocols',
-     'y\\-websocket',
-     'yjs'
-   ].join('|');
-
-   module.exports = {
-     preset: 'ts-jest/presets/js-with-babel',
-     moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
-     transformIgnorePatterns: [`/node_modules/(?!${esModules}).+`],
-     globals: {
-       'ts-jest': {
-         tsConfig: 'tsconfig.json'
-       }
-     },
-     ... // Other options useful for your extension
-   };
+.. code-block:: javascript
+
+    const jestJupyterLab = require('@jupyterlab/testutils/lib/jest-config');
+
+    const esModules = ['@jupyterlab/'].join('|');
+
+    const baseConfig = jestJupyterLab(__dirname);
+
+    module.exports = {
+      ...baseConfig,
+      automock: false,
+      collectCoverageFrom: [
+        'src/**/*.{ts,tsx}',
+        '!src/**/*.d.ts',
+        '!src/**/.ipynb_checkpoints/*'
+      ],
+      coverageReporters: ['lcov', 'text'],
+      testRegex: 'src/.*/.*.spec.ts[x]?$',
+      transformIgnorePatterns: [
+        ...baseConfig.transformIgnorePatterns,
+        `/node_modules/(?!${esModules}).+`
+      ]
+    };
 
 Finally, you will need to configure babel with a ``babel.config.js`` file containing:
 
-::
-
-   module.exports = {
-     presets: [
-       [
-         '@babel/preset-env',
-         {
-           targets: {
-             node: 'current'
-           }
-         }
-       ]
-     ]
-   };
+.. code-block:: javascript
+
+   module.exports = require('@jupyterlab/testutils/lib/babel.config');
diff --git a/docs/source/extension/extension_migration.rst b/docs/source/extension/extension_migration.rst
index 5ba5a8c444f3..d5bcf5fafe66 100644
--- a/docs/source/extension/extension_migration.rst
+++ b/docs/source/extension/extension_migration.rst
@@ -1,7 +1,457 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _extension_migration:
 
 Extension Migration Guide
-=========================
+================================================
+
+JupyterLab 3.x to 4.x
+---------------------
+
+Because of significant type changes from JupyterLab 3.x to 4.x, we recommend **publishing a new major version**
+of your extension to work with each major version of JupyterLab. For examples of extensions that use different
+major versions for Lab 3 and Lab 4, see `jupyterlab-vim <https://github.com/jupyterlab-contrib/jupyterlab-vim>`_
+and `jupyter-ai <https://github.com/jupyterlab/jupyter-ai>`_.
+
+Upgrading extension using the upgrade script
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+JupyterLab 4.x provides a script to upgrade an existing extension to use the new extension system and packaging.
+
+.. note::
+
+    Back up your extension - the best if you use a version control like git, is to work on a new branch.
+
+First, make sure to update to JupyterLab 4 and install ``copier`` and some dependencies. With ``pip``:
+
+.. code:: bash
+
+   pip install -U jupyterlab
+   pip install "copier~=8.0" jinja2-time tomli-w
+
+
+Or with ``conda``:
+
+.. code:: bash
+
+   conda install -c conda-forge jupyterlab=4 "copier=8" jinja2-time tomli-w
+
+
+Then at the root folder of the extension, run:
+
+.. code:: bash
+
+   python -m jupyterlab.upgrade_extension .
+
+The upgrade script creates the necessary files for packaging the JupyterLab extension as a Python package.
+The script will ask you for all files if you want to override them or not. By default the configuration files
+will be overridden for the newer version. In particular, if you were using Python setuptools (aka ``setup.py``
+and/or ``setup.cfg``), you will like need to update the ``pyproject.toml`` file (see
+`PEP example <https://peps.python.org/pep-0621/#example>`_).
+
+The upgrade script also updates the dependencies in ``package.json`` to the ``^4.0.0`` packages.
+
+For more details about the new file structure and packaging of the extension, check out the extension tutorial: :ref:`extension_tutorial`
+
+.. note::
+
+    You will need to modify the code of your extension if it is impacted by the API changes mentioned below.
+
+jlpm
+^^^^
+
+The utility ``jlpm`` uses Yarn 3 (previously Yarn 1). This will require updating your
+package configuration.
+
+- Create a file ``.yarnrc.yml`` containing:
+
+.. code-block:: yaml
+
+   enableImmutableInstalls: false
+   nodeLinker: node-modules
+
+- Add to ``.gitignore``
+
+.. code-block::
+
+   .yarn/
+
+- Run ``jlpm install``
+  This will reset your ``yarn.lock`` content as its format has changed.
+
+.. note::
+
+   You can find more information on upgrading Yarn from version 1 to version 3 in
+   [Yarn documentation](https://v3.yarnpkg.com/getting-started/migration).
+
+If you are hit by multiple versions of the same packages (like ``@lumino/widgets``),
+TypeScript may complain that the types are not matching. One possible solution
+is to force packages deduplication using:
+
+.. code-block:: sh
+
+   jlpm dlx yarn-berry-deduplicate
+
+API breaking changes
+^^^^^^^^^^^^^^^^^^^^
+
+.. note::
+
+   With JupyterLab 4.x, the npm package version policy changed to not bump major version with
+   the Python package unless required to ease extension compatibility.
+
+Here is a list of JupyterLab npm packages that encountered API changes and therefore have
+bumped their major version (following semver convention). We want to point out particularly
+``@jupyterlab/documentsearch`` and ``@jupyterlab/toc`` API that have been fully reworked.
+
+- ``@jupyterlab/application`` from 3.x to 4.x
+   * Major version bump to allow alternate ``ServiceManager`` implementations in ``JupyterFrontEnd``.
+     Specifically this allows the use of a mock manager.
+     This also makes the ``JupyterLab.IOptions`` more permissive to not require a shell when options are
+     given and allow a shell that meets the ``ILabShell`` interface.
+     As a consequence, all other ``@jupyterlab/`` packages have their major version bumped too.
+     See https://github.com/jupyterlab/jupyterlab/pull/11537 for more details.
+   * Rename token ``@jupyterlab/apputils:IConnectionLost`` to ``@jupyterlab/application:IConnectionLost``.
+- ``@jupyterlab/apputils`` from 3.x to 4.x
+   * Rename ``IToolbarWidgetRegistry.registerFactory`` to ``IToolbarWidgetRegistry.addFactory``
+   * ``ISanitizer`` and ``ISanitizer.IOptions`` are deprecated in favor of ``IRenderMime.ISanitizer`` and
+     ``IRenderMime.ISanitizerOptions`` in ``@jupyterlab/rendermime-interfaces``.
+   * Global ``sessionContextDialogs`` is removed; you should request the token ``ISessionContextDialogs`` (from ``@jupyterlab/apputils``).
+- ``@jupyterlab/attachments`` from 3.x to 4.x
+   Removed ``modelDB`` from ``IAttachmentsModel.IOptions``.
+- ``@jupyterlab/buildutils`` from 3.x to 4.x
+   * The ``create-theme`` script has been removed. If you want to create a new theme extension, you
+     should use the `TypeScript extension template <https://github.com/jupyterlab/extension-template>`_
+     (choosing ``theme`` as ``kind`` ) instead.
+   * The ``add-sibling`` script has been removed. Check out :ref:`source_dev_workflow` instead.
+   * The ``exitOnUuncaughtException`` util function has been renamed to ``exitOnUncaughtException`` (typo fix).
+- ``@jupyterlab/cells`` from 3.x to 4.x
+   * ``MarkdownCell.toggleCollapsedSignal`` renamed ``MarkdownCell.headingCollapsedChanged``
+     To support notebook windowing, cell widget children (e.g. the editor or the output area) are not instantiated
+     when the cell is attached to the notebook. You can test for ``isPlaceholder()`` to see if the cell has been
+     fully instantiated or wait for the promise ``ready`` to be resolved. Additionally an attribute ``inViewport``
+     and a signal ``inViewportChanged`` are available to test if the cell is attached to the DOM.
+     If you instantiate standalone cells outside of a notebook, you will probably need to set the constructor option
+     ``placeholder`` to ``false`` to ensure direct rendering of the cell.
+   * ``InputArea.defaultContentFactory`` and ``Cell.defaultContentFactory`` have been removed. If you need it, you
+     can request the token ``IEditorServices`` from ``@jupyterlab/codeeditor``. Then you can use
+     ``new Cell.ContentFactory({ editorFactory: token.factoryService.newInlineEditor });``.
+- ``@jupyterlab/celltags`` from 3.x to 4.0
+  The ``@jupyterlab/celltags`` package has been removed and replaced by a widget in ``@jupyterlab/celltags-extension``.
+  This widget is now rendered using ``@jupyterlab/metadataform``.
+- ``@jupyterlab/codeeditor`` from 3.x to 4.0
+   * ``CodeEditor.IEditor`` has changed:
+      - ``resizeToFit()`` is removed
+      - ``addKeydownHandler()`` is removed - you should add a CodeMirror extension ``EditorView.domEventHandlers`` with
+         ``Prec.high`` (to ensure it is not captured by keyboard shortcuts).
+      - ``injectExtension()`` added as experimental to inject a CodeMirror extension - you should prefer registering
+         new extensions with ``IEditorExtensionRegistry``.
+   * ``CodeEditor.IOptions`` has two new optional attributes:
+      - ``extensions?: Extensions[]`` to provide custom extensions at editor instantiation
+      - ``inline?: boolean`` whether the editor is a subpart of a document (like the notebook) or not.
+   * ``CodeEditorWrapper.IOptions`` has changed to ``{ factory, model, editorOptions }``.
+   * ``CodeViewerWidget.IOptions`` has changed to ``{ factory, model, editorOptions }``.
+- ``@jupyterlab/codemirror`` from 3.x to 4.0
+   * Configuration parameters changes:
+      - ``fontFamily``, ``fontSize`` and ``lineHeight``: grouped in a subdictionnary ``customStyles``.
+      - ``insertSpaces``: changed for ``indentUnit`` that can take a value within ['Tab', '1', '2', '4', '8']
+      - ``lineWrap``: changed - it is now a boolean.
+      - ``showTrailingSpace``: renamed ``highlightTrailingWhitespace``
+      - ``coverGutterNextToScrollbar``: removed
+      - ``electricChars``: removed
+      - ``extraKeys``: removed - you should register new keymap using the CodeMirror extension ``keymap.of(KeyBinding[])``
+      - ``handlePaste``: removed
+      - ``keymap``: removed
+      - ``lineSeparator``: removed - Line separator are normalized to ``\n``
+      - ``lineWiseCopyCut``: removed - this is the default behavior
+      - ``scrollbarStyle``: removed
+      - ``styleSelectedText``: removed
+      - ``selectionPointer``: removed
+      - ``wordWrapColumn``: removed
+   * ``Mode`` has been removed. You can instead request the token ``IEditorLanguageHandler``. That provides
+     similar API:
+     - ``Mode.registerModeInfo`` -> ``IEditorLanguageHandler.addLanguage``
+     - ``Mode.ensure()`` -> ``IEditorLanguageHandler.getLanguage()``
+     - ``Mode.modeList`` -> ``IEditorLanguageHandler.getLanguages()``
+     - ``Mode.run()`` -> ``IEditorLanguageHandler.highlight()``
+     - ``Mode.findBest()`` -> ``IEditorLanguageHandler.findBest()``
+     - ``Mode.findByName()`` -> ``IEditorLanguageHandler.findByName()``
+     - ``Mode.findByMIME()`` -> ``IEditorLanguageHandler.findByMIME()``
+     - ``Mode.findByExtension()`` -> ``IEditorLanguageHandler.findByExtension()``
+   * ``EditorSyntaxStatus`` moved to ``@jupyterlab/fileeditor``
+- ``@jupyterlab/codemirror-extension`` from 3.x to 4.0
+   * Moved commands:
+     - ``codemirror:change-theme`` -> ``fileeditor:change-theme`` (moved to ``@juptyerlab/fileeditor-extension``)
+     - ``codemirror:change-mode`` -> ``fileeditor:change-language`` (moved to ``@juptyerlab/fileeditor-extension``)
+     - ``codemirror:find`` -> ``fileeditor:find`` (moved to ``@juptyerlab/fileeditor-extension``)
+     - ``codemirror:go-to-line`` -> ``fileeditor:go-to-line`` (moved to ``@juptyerlab/fileeditor-extension``)
+   * Removed command: ``codemirror:change-keymap``
+   * Moved plugins:
+     - ``@jupyterlab/codemirror-extension:commands`` integrated within ``@jupyterlab/fileeditor-extension:plugin``
+     - ``@jupyterlab/codemirror-extension:editor-syntax-status`` -> ``@jupyterlab/fileeditor-extension:editor-syntax-status``
+     - ``@jupyterlab/codemirror-extension:editor-syntax-status`` -> ``@jupyterlab/fileeditor-extension:editor-syntax-status``
+- ``@jupyterlab/completer`` from 3.x to 4.x
+   Major version was bumped following major refactor aimed at performance improvements and enabling easier third-party integration.
+
+   * Adding custom completion suggestions (items):
+      - In 3.x and earlier adding custom completion items required re-registering the completer connector for each file/cell
+        using ``register`` method of old manager provided by ``ICompletionManager`` token; in 4.x this token and associated
+        ``ICompletableAttributes`` interface was removed and a proper method of registering a custom source of completions
+        (a provider of completions) was added. To create a completer provider  for JupyterLab, users need to implement the
+        ``ICompletionProvider`` interface and then register this provider with ``ICompletionProviderManager`` token.
+      - In 3.x merging completions from different sources had to be performed by creating a connector internally merging
+        results from other connectors. in 4.x ``IProviderReconciliator`` is used to merge completions from multiple providers,
+        and can be customised in constructor for custom completion handlers (``CompletionHandler``); customizing reconciliator
+        in JupyterLab-managed completers is not yet possible.
+   * Rendering with ``Completer.IRenderer``:
+      - In 3.x it was not possible to easily swap the renderer of JupyterLab-managed completers.
+        In 4.x the renderer from the completion provider with highest rank is now used for all
+        JupyterLab-managed completers. This behaviour is subject to revision in the future (please leave feedback).
+      - Completer box is now using delayed rendering for off-screen content to improve time to first paint
+        for top suggestions. To position the completer without rendering all items we search for the widest
+        item using heuristic which can be adjusted in custom renderers (``itemWidthHeuristic``).
+      - The documentation panel now implements a loading indicator (a progress bar) customizable via
+        optional ``createLoadingDocsIndicator`` renderer method.
+      - ``createItemNode`` was removed in favour of ``createCompletionItemNode`` which is now required.
+      - ``createCompletionItemNode`` is no longer responsible for sanitization of labels which is now a
+        responsibility of the model (see below).
+   * Model:
+      - In 3.x it was not possible to easily swap the model of JupyterLab-managed completers.
+        In 4.x the model factory from the completion provider with highest rank is now used for
+        JupyterLab-managed completers. This behaviour is subject to revision in the future (please leave feedback).
+      - Old methods for updating and accessing the completion items: ``setOptions``, ``options``, and ``items`` were removed
+        in favour of ``completionItems`` and ``setCompletionItems`` which are now required members of ``Completer.IModel``.
+      - New signal ``queryChanged`` was added and has to be emitted by models.
+      - Model is now responsible for sanitization of labels and preserving original label on ``insertText`` attribute
+        (if not already defined); this change was required to properly handle escaping of HTML tags.
+- ``@jupyterlab/codeeditor`` from 3.x to 4.x
+   * Remove ``ISelectionStyle`` (and therefore ``defaultSelectionStyle`` and ``IEditor.selectionStyle``). This was envisaged
+     for real-time collaboration. But this is not used in the final implementation.
+- ``@jupyterlab/console`` from 3.x to 4.x
+   The type of ``IConsoleHistory.sessionContext`` has been updated to ``ISessionContext | null`` instead of ``ISessionContext``.
+   This might break the compilation of plugins accessing the ``sessionContext`` from a ``ConsoleHistory``,
+   in particular those with the strict null checks enabled.
+- ``@jupyterlab/coreutils`` from 3.x to 4.x
+   The ``Time`` namespace does not use the ``moment`` library anymore for managing dates. Instead it switched to using
+   the ``Intl`` API now available in modern web browsers. The ``Time.format`` function is still available but does not accept the
+   ``timeFormat`` argument anymore.
+- ``@jupyterlab/debugger`` from 3.x to 4.x
+   * The command ``debugger:pause`` command ID has been renamed ``debugger:pause-on-exceptions`` to avoid ambiguity with
+     pausing the current running thread.
+- ``@jupyterlab/docmanager`` from 3.x to 4.x
+   * The ``renameDialog`` now receives the ``DocumentRegistry.Context`` instead of a path.
+   * The interface ``DocumentManager.IWidgetOpener`` is now ``IDocumentWidgetOpener`` and is provided
+     by a new plugin ``@jupyterlab/docmanager-extension:opener``.
+     The ``IDocumentWidgetOpener`` interface also now defines an ```opened``` signal that is emitted when a widget is opened.
+   * Removed the property ``docProviderFactory`` from the interface ``DocumentManager.IOptions``.
+- ``@jupyterlab/docregister`` from 3.x to 4.x
+   * ``TextModelFactory.preferredLanguage(path: string)`` will always return ``''``. The editor languages is not available globally to provided it.
+     You can recover the feature if needed, by requesting the token ``IEditorLanguageHandler`` from ``@jupyterlab/codemirror``. Then you can use
+     ``token.findByFileName(widget.context.path)?.name ?? ''``.
+- ``@jupyterlab/docprovider`` from 3.x to 4.x
+   This package is no longer present in JupyterLab. For documentation related to Real-Time Collaboration, please check out
+   `RTC's documentation <https://jupyterlab.readthedocs.io/en/stable/user/rtc.html>`_
+- ``@jupyterlab/docregistry`` from 3.x to 4.x
+   * Removed the property ``docProviderFactory`` from the interface ``Context.IOptions``.
+   * The constructor of the class ``DocumentModel`` receives a parameter ``DocumentModel.IOptions``.
+   * The method ``IModelFactory.createNew`` receives a parameter ``DocumentRegistry.IModelOptions``.
+   * The method ``TextModelFactory.createNew`` receives a parameter ``DocumentModel.IOptions``.
+- ``@jupyterlab/documentsearch`` from 3.x to 4.x
+   * ``@jupyterlab/documentsearch:plugin`` has been renamed to ``@jupyterlab/documentsearch-extension:plugin``
+   * ``@jupyterlab/documentsearch:labShellWidgetListener`` has been renamed to ``@jupyterlab/documentsearch-extension:labShellWidgetListener``
+
+   This may impact application configuration (for instance if the plugin was disabled).
+   The search provider API has been fully reworked. But the logic is similar, for new type of documents
+   you will need to register a ``ISearchProviderFactory`` to the ``ISearchProviderRegistry``. The
+   factory will build a ``ISearchProvider`` for the document widget.
+- ``@jupyterlab/extensionmanager`` from 3.x to 4.x
+   The frontend API has been drastically reduced to fetch all information from the backend. It is now advised
+   that you implement a custom ``ExtensionManager`` class for your needs rather than overriding the frontend plugins.
+   See ``jupyterlab/extensions/pypi.py`` for an example using PyPI.org and pip. You can then register your manager
+   by defining an entry point in the Python package; see ``pyproject.toml::project.entry-points."jupyterlab.extension_manager_v1"``.
+- ``@jupyterlab/fileeditor`` from 3.x to 4.x
+   Remove the class ``FileEditorCodeWrapper``, instead, you can use ``CodeEditorWrapper`` from ``@jupyterlab/codeeditor``.
+- ``@jupyterlab/filebrowser`` from 3.x to 4.x
+   * Remove the property ``defaultBrowser`` from the interface  ``IFileBrowserFactory``. The default browser is now provided by it own
+     plugin by requiring the token ``IDefaultFileBrowser``.
+   * Remove the ``useFuzzyFilter`` setter from the ``FileBrowser`` class.
+- ``@jupyterlab/filebrowser-extension`` from 3.x to 4.x
+   Remove command ``filebrowser:create-main-launcher``. You can replace by ``launcher:create`` (same behavior)
+   All launcher creation actions are moved to ``@jupyterlab/launcher-extension``.
+- ``@jupyterlab/imageviewer-extension`` from 3.x to 4.x
+   Removed ``addCommands`` from public API
+- ``@jupyterlab/mainmenu`` from 3.x to 4.x
+   * ``IMainMenu.addMenu`` signature changed from ``addMenu(menu: Menu, options?: IMainMenu.IAddOptions): void``
+     to ``addMenu(menu: Menu, update?: boolean, options?: IMainMenu.IAddOptions): void``
+   * Removed ``createEditMenu``, ``createFileMenu``, ``createKernelMenu``, ``createViewMenu``, ``createRunMenu``,
+     ``createTabsMenu``, ``createHelpMenu`` from public API.
+- ``@jupyterlab/notebook`` from 3.x to 4.x
+   * ``NotebookWidgetFactory.IOptions`` has no ``sessionDialogs`` option any more.
+   * The ``NotebookPanel._onSave`` method is now ``private``.
+   * ``NotebookActions.collapseAll`` method renamed to ``NotebookActions.collapseAllHeadings``.
+   * Command ``Collapsible_Headings:Toggle_Collapse`` renamed to ``notebook:toggle-heading-collapse``.
+   * Command ``Collapsible_Headings:Collapse_All`` renamed to ``notebook:collapse-all-headings``.
+   * Command ``Collapsible_Headings:Expand_All`` renamed to ``notebook:expand-all-headings``.
+   * To support windowing, a new method ``scrollToItem(index, behavior)`` is available to scroll to any
+     cell that may or may not be in the DOM. And new ``cellInViewportChanged`` signal is available to listen
+     for cells entering or leaving the viewport (in windowing mode). And ``scrollToCell(cell)`` is now returning
+     a ``Promise<void>`` calling internally ``scrollToItem``.
+   * ``fullyRendered``, ``placeholderCellRendered`` and ``remainingCellToRenderCount`` have been removed.
+     The defer rendering mode still exists. It will render some cells during spare CPU Idle time.
+   * Settings ``numberCellsToRenderDirectly``, ``remainingTimeBeforeRescheduling``, ``renderCellOnIdle``,
+     ``observedTopMargin`` and ``observedBottomMargin`` have been removed. Instead a ``windowingMode``
+     with value of *defer*, *full* or *none* and ``overscanCount`` have been added to manage the rendering
+     mode.
+   * Added the property ``sharedModel`` to the interface ``NotebookModel.IOptions``.
+   * The method ``NotebookModelFactory.createNew`` receives a parameter ``NotebookModelFactory.IModelOptions``.
+   * The default Notebook toolbar's ``restart-and-run`` button now refers to the command
+     ``notebook:restart-run-all`` instead of ``runmenu:restart-and-run-all``.
+   * ``StaticNotebook.defaultContentFactory`` has been removed. If you need it, you can request the token
+     ``IEditorServices`` from ``@jupyterlab/codeeditor``. You can obtain it by requested
+     ``new NotebookPanel.ContentFactory({ editorFactory: token.factoryService.newInlineEditor });``
+   * ``notebooktools`` module does not provides anymore the ``ActiveCellTool``, the ``NotebookMetadataEditorTool``
+     and the ``CellMetadataEditorTool``. All these widget are replaced by widgets in ``@jupyterlab/notebook-extension``,
+     and are rendered using ``@jupyterlab/metadataform``.
+     The ``KeySelector`` has also been removed as not used anymore, replaced by the use of ``@jupyterlab/metadataform``
+     to provides selection for metadata keys.
+- ``@jupyterlab/rendermime`` from 3.x to 4.x
+   * The markdown parser has been extracted to its own plugin ``@jupyterlab/markedparser-extension:plugin``
+     that provides a new token ``IMarkdownParser`` (defined in ``@jupyterlab/rendermime``).
+     Consequently the ``IRendererFactory.createRenderer`` has a new option ``markdownParser``.
+   * [Not breaking] ``IRenderMime.IExtension`` has a new optional ``description: string`` attribute for documentation.
+- ``@jupyterlab/rendermime-interfaces`` from 3.x to 4.x
+  Remove ``IRenderMime.IRenderer.translator?`` attribute; the translator object is still passed to
+  the constructor if needed by the renderer factory.
+- ``@jupyterlab/services`` from 6.x to 7.x
+   * Remove ``Contents.IDrive.modelDBFactory`` and ``Contents.IManager.getModelDBFactory``.
+   * Added ``Contents.IDrive.sharedModelFactory`` and ``Contents.IManager.getsharedModelFactory``.
+- ``@jupyterlab/shared-models`` from 3.x to 4.x
+   This package is no longer present in JupyterLab. For documentation related to the shared models,
+   please check out `@jupyter/ydoc documentation <https://jupyter-ydoc.readthedocs.io/en/latest>`_.
+- ``@jupyterlab/statusbar`` from 3.x to 4.x
+   * Setting ``@jupyterlab/statusbar-extension:plugin . startMode`` moved to ``@jupyterlab/application-extension:shell . startMode``
+   * Plugin ``@jupyterlab/statusbar-extension:mode-switch`` renamed to ``@jupyterlab/application-extension:mode-switch``
+   * Plugin ``@jupyterlab/statusbar-extension:kernel-status`` renamed to ``@jupyterlab/apputils-extension:kernel-status``
+   * Plugin ``@jupyterlab/statusbar-extension:running-sessions-status`` renamed to ``@jupyterlab/apputils-extension:running-sessions-status``
+   * Plugin ``@jupyterlab/statusbar-extension:line-col-status`` renamed to ``@jupyterlab/codemirror-extension:line-col-status``
+   * ``HoverBox`` component moved from ``@jupyterlab/apputils`` to ``@jupyterlab/ui-components``.
+   * Removed ``STATUSBAR_PLUGIN_ID`` from public API.
+- ``@jupyterlab/terminal`` from 3.x to 4.x
+   * Xterm.js upgraded from 4.x to 5.x
+   * ``IThemeObject.selection`` renamed to ``selectionBackground``
+- ``@jupyterlab/terminal-extension`` from 3.x to 4.x
+   Removed ``addCommands`` from public API
+- ``@jupyterlab/toc`` from 3.x to 4.x
+   ``@jupyterlab/toc:plugin`` renamed ``@jupyterlab/toc-extension:registry``
+   This may impact application configuration (for instance if the plugin was disabled).
+   The namespace ``TableOfContentsRegistry`` has been renamed ``TableOfContents``.
+   The API has been fully reworked. The new table of content providers must implement a factory
+   ``TableOfContents.IFactory`` that will create a model ``TableOfContents.IModel<TableOfContents.IHeading>``
+   for supported widget. The model provides a list of headings described by a ``text`` and
+   a ``level`` and optionally a ``prefix``, a ``collapsed`` state and a ``dataset`` (data
+   DOM attributes dictionary).
+- ``@jupyterlab/ui-components`` from 3.x to 4.x
+   * Major version bumped following removal of Blueprint JS dependency. Extensions using proxied
+     components like ``Checkbox``, ``Select`` or ``Intent`` will need to import them explicitly
+     from Blueprint JS library. Extensions using ``Button``, ``Collapse`` or ``InputGroup`` may
+     need to switch to the Blueprint components as the interfaces of those components in JupyterLab
+     do not match those of Blueprint JS.
+   * Remove ``Collapse`` React component.
+   * Form component registry changes:
+      - Rename the plugin ``'@jupyterlab/ui-components-extension:form-component-registry'`` to ``'@jupyterlab/ui-components-extension:form-renderer-registry'``
+      - Rename the ``IFormComponentRegistry`` token to ``IFormRendererRegistry``, from ``@jupyterlab/ui-components:ISettingEditorRegistry``
+        to ``@jupyterlab/ui-components:IFormRendererRegistry``.
+      - The ``FormRendererRegistry`` registers ``IFormRenderer`` instead of ``Field`` renderers.
+        A ``IFormRenderer`` defines a ``fieldRenderer`` (this is the renderer to set for backward compatibility)
+        or a ``widgetRenderer``.
+        The renderer id must follow the convention ``<ISettingRegistry.IPlugin.id>.<propertyName>``. This is to
+        ensure a custom renderer is not used for property with the same name but different schema.
+- ``@jupyterlab/translation`` from 3.x to 4.x
+  Renamed the method ``locale`` into the property ``languageCode`` in the ``NullTranslator``
+- ``@jupyterlab/vdom`` and ``@jupyterlab/vdom-extension`` have been removed.
+  The underlying `vdom <https://github.com/nteract/vdom>`_ Python package is unmaintained.
+  So it was decided to drop it from core packages.
+- ``jupyter.extensions.hub-extension`` from 3.x to 4.x
+   * Renamed ``jupyter.extensions.hub-extension`` to ``@jupyterlab/hub-extension:plugin``.
+   * Renamed ``jupyter.extensions.hub-extension:plugin`` to ``@jupyterlab/hub-extension:menu``.
+- TypeScript 5.0 update
+  As a result of the update to TypeScript 5.0, a couple of interfaces have had their definitions changed.
+  The ``anchor`` parameter of ``HoverBox.IOptions`` is now a ``DOMRect`` instead of ``ClientRect``.
+  The ``CodeEditor.ICoordinate`` interface now extends ``DOMRectReadOnly`` instead of ``JSONObject, ClientRect``.
+- React 18.2.0 update
+  The update to React 18.2.0 (from 17.0.1) should be propagated to extensions as well.
+  Here is the documentation about the `migration to react 18 <https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html>`_.
+
+Testing with Jest
+^^^^^^^^^^^^^^^^^
+
+Jest has been updated to 29.2.0 (and *ts-jest* to 29.0.0). And therefore the jest configuration provided by
+``@jupyterlab/testutils`` is compatible for that version. In particular:
+
+- The unmaintained reporter ``jest-summary-reporter`` has been replaced by the new default ``github-actions`` reporter.
+- The helper ``flakyIt`` has been removed. You can use the new `jest.retryTimes <https://jestjs.io/docs/jest-object#jestretrytimesnumretries-options>`_ instead.
+
+With JupyterLab 4, we fixed circular dependencies due to the ``testutils`` package. So it is now only a facade to export
+helpers from various core packages. The exported helpers are the same as before expect for:
+
+- ``NBTestUtils.DEFAULT_CONTENT``: Removed - you could imported from ``@jupyterlab/notebook/lib/testutils`` but we strongly advice not to and to use your own test data.
+- ``NBTestUtils.DEFAULT_CONTENT_45``: Removed
+
+Testing with Galata
+^^^^^^^^^^^^^^^^^^^
+
+The in-page helpers are now in an JupyterLab extension to live in the common Webpack shared scoped. That new extension
+is contained in the JupyterLab python package at ``jupyterlab.galata``. It requires to update your Jupyter server
+configuration by adding the following line:
+
+.. code-block:: python
+
+    import jupyterlab
+    c.LabApp.extra_labextensions_path = str(Path(jupyterlab.__file__).parent / "galata")
+
+.. note::
+
+    To ease configuration, we have introduce a new helper function ``jupyterlab.galata.configure_jupyter_server``. So you can
+    simplify the server configuration to be ``jupyterlab.galata.configure_jupyter_server(c)``.
+
+Here are the changes in the Javascript package ``@jupyterlab/galata`` from 4.x to 5.x:
+   * ``ContentsHelper`` and ``galata.newContentsHelper`` have new constructor arguments to use Playwright API request object:
+     ``new ContentsHelper(baseURL, page?, request?)`` -> ``new ContentsHelper(request?, page?)``
+     ``galata.newContentsHelper(baseURL, page?, request?)`` -> ``galata.newContentsHelper(request?, page?)``
+     you need to provide ``request`` or ``page``; they both are fixtures provided by Playwright.
+   * ``galata.Mock.clearRunners(baseURL, runners, type)`` -> ``galata.Mock.clearRunners(request, runners, type)``
+   * In-pages helpers are now in an extension define in ``jupyterlab/galata/extension`` and
+     store in ``@jupyterlab/galata/lib/extension``. And the global object has been renamed ``window.galata`` instead
+     of ``window.galataip`` (it still exists but it is deprecated).
+
+Deprecated code removed
+^^^^^^^^^^^^^^^^^^^^^^^
+
+The following deprecated API's have been removed:
+
+- ``@jupyterlab/csvviewer``: ``CSVDelimiter.delimiterChanged`` has been removed - dead code. You can directly access the delimiter from the ``CSVViewer`` widget.
+- ``@jupyterlab/mainmenu``: ``IJupyterLabMenu`` and ``JupyterLabMenu`` have been removed. You can use directly ``IRankedMenu`` and ``RankedMenu`` from ``@jupyterlab/ui-components``
+- ``@jupyterlab/notebook``: ``NotebookWidgetFactory`` default toolbar is now empty as the button helpers are deprecated.
+- ``@jupyterlab/rendermime``: ``RenderMimeRegistry.IUrlResolverOptions`` does not accept ``session``; you must set the ``path`` (accessible through ``session.path``).
+- ``@jupyterlab/ui-components``:
+   * ``RankedMenu.menu : Menu`` has been removed as ``RankedMenu`` inherits from ``Menu``.
+   * ``LabIconStyle.IProps`` does not accept ``kind`` nor ``justify``. You should use ``stylesheet`` or ``elementPosition`` respectively.
+
+Extension Development Changes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- The ``externalExtensions`` field in the ``dev_mode/package.json`` file corresponding to the ``@jupyterlab/application-top``
+  ``private`` package has now been removed in ``4.0``. If you were using this field to develop source extensions against
+  a development build of JupyterLab, you should instead switch to the federated extensions system (via the ``--extensions-in-dev-mode`` flag)
+  or to using the ``--splice-source`` option. See :ref:`prebuilt_dev_workflow` and :ref:`source_dev_workflow` for more information.
+- The ``webpack`` dependency in ``@jupyterlab/builder`` has been updated to ``5.72`` (or newer). Base rules have been updated to use the
+  `Asset Modules <https://webpack.js.org/guides/asset-modules>`_ instead of the previous ``file-loader``, ``raw-loader`` and ``url-loader``.
+  This might affect third-party extensions if they were relying on specific behaviors from these loaders.
+- In JupyterLab 3.x, the CSS for a _disabled_ prebuilt extensions would still be loaded on the page.
+  This is no longer the case in JupyterLab 4.0.
+- ``window.jupyterlab`` is not exposed anymore when starting JupyterLab with the ``--expose-app-in-browser`` flag.
+  Use ``window.jupyterapp`` instead.
 
 .. _extension_migration_3.5_3.6:
 
@@ -20,6 +470,7 @@ target to ES2018 or add ``"ES2018"`` to the `TypeScript lib option <https://www.
     JupyterLab 3.6.0 was released with an updated target "ES2018". We strongly advise updating to 3.6.1,
     which reverts the target back to "ES2017".
 
+
 Jest configuration update
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -56,12 +507,11 @@ Instead of using the content API, now the provider opens a WebSocket connection
 `jupyter server extension <https://github.com/jupyter-server/jupyter_server_ydoc>`__.
 
 In addition, the shared models' package was moved to an external package called `@jupyter/ydoc
-<https://github.com/jupyter-server/jupyter_ydoc>`__. ``@jupyterlab/shared-models`` has been kept
-for backward compatibility (except in 3.6.0 and 3.6.1). It is now a proxy to ``@jupyter/ydoc@~0.2.2``;
-the API is almost the same; see the required modification for the `example <https://github.com/jupyterlab/extension-examples/pull/224>`_.
+<https://github.com/jupyter-server/jupyter_ydoc>`__. All the extensions that depend on
+``@jupyterlab/shared-models`` will need to update to depend in ``@jupyter/ydoc@~0.2.2``; the API should
+be the same.
 
 **API Changes:**
-
 To be able to fix RTC and make it stable. It was necessary to change the API and make a few breaking changes.
 These changes should not affect the vast majority of extensions. They will only affect a couple
 of extensions focused on RTC.
@@ -86,42 +536,31 @@ The involved packages are:
 
    * ``WebSocketProvider.IOptions`` has a new optional attribute, ``user``.
 
-- ``@jupyterlab/shared-models``: It is now a proxy to ``@jupyter/ydoc@~0.2.2``.
-   - A document model extending ``YDocument`` must define a change interface extending ``DocumentChange``.
-
 - ``@jupyterlab/services``:
    * The interface ``IManager`` has a new optional property, ``user`` that implement `User.IManager <../api/interfaces/services.User.IManager.html>`_.
 
    * The ``ServiceManager`` class implements the optional property ``user`` from the ``IManager``.
 
-**Future changes:**
-Some of the behavior changes coming in JupyterLab 4.0 were made available behind a flag in JupyterLab 3.6:
-
-- In JupyterLab 3.x, the CSS for a _disabled_ prebuilt extensions is always loaded on the page.
-  This will no longer be the case in JupyterLab 4.0. To preview the impact of these changes on
-  your extension/theme start JupyterLab with ``--future-skip-styles-for-disabled`` flag.
-
 
 .. _extension_migration_3.0_3.1:
 
 JupyterLab 3.0 to 3.1
 ---------------------
 
-Following semver rules, API are compatible.
-
 New main and context menus customization
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 JupyterLab 3.1 introduces a new way to hook commands into :ref:`mainmenu` and :ref:`context_menu`.
 It allows the final user to customize those menus through settings as it is already possible for
 the shortcuts.
+Using the API is not recommended any longer except to create dynamic menus.
 
 
 Jest configuration update
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 If you are using jest to test your extension, some new ES6 packages dependencies are added to JupyterLab.
-They need to be ignore when transforming the code with Jest. You will need to update the 
+They need to be ignore when transforming the code with Jest. You will need to update the
 ``transformIgnorePatterns`` to match:
 
 .. code::
@@ -142,13 +581,13 @@ For more information, have a look at :ref:`testing_with_jest`.
 
 .. note::
 
-   Here is an example of pull request to update to JupyterLab 3.1 in ``@jupyterlab/git`` extension:  
+   Here is an example of pull request to update to JupyterLab 3.1 in ``@jupyterlab/git`` extension:
    https://github.com/jupyterlab/jupyterlab-git/pull/979/files
 
 
 .. _extension_migration_2_3:
 
-JupyterLab 2.x to 3.x
+JupyterLab 2.x to 3.x
 ---------------------
 
 Here are some helpful tips for migrating an extension from JupyterLab 2.x to JupyterLab 3.x.
@@ -293,7 +732,7 @@ Upgrading library versions
 The ``@phosphor/*`` libraries that JupyterLab 1.x uses have been renamed to
 ``@lumino/*``. Updating your ``package.json`` is straightforward. The easiest
 way to do this is to look in the
-`JupyterLab core packages code base <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages>`__
+`JupyterLab core packages code base <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages>`__
 and to simply adopt the versions of the relevant libraries that are used
 there.
 
@@ -414,7 +853,7 @@ Using ``Session`` and ``SessionContext`` to manage kernel sessions
 
   For full API documentation and examples of how to use
   ``@jupyterlab/services``,
-  `consult the repository <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages/services#readme>`__.
+  `consult the repository <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages/services#readme>`__.
 
 ``ConsolePanel`` and ``NotebookPanel`` now expose a
 ``sessionContext: ISessionContext`` attribute that allows for a uniform way to
@@ -449,6 +888,4 @@ Using the new icon system and ``LabIcon``
 
   For full API documentation and examples of how to use
   the new icon support based on ``LabIcon`` from ``@jupyterlab/ui-components``,
-  `consult the repository <https://github.com/jupyterlab/jupyterlab/tree/3.6.x/packages/ui-components#readme>`__.
-
-
+  `consult the repository <https://github.com/jupyterlab/jupyterlab/tree/4.0.x/packages/ui-components#readme>`__.
diff --git a/docs/source/extension/extension_points.rst b/docs/source/extension/extension_points.rst
index f24f9f9e6b29..e5e57e9bc290 100644
--- a/docs/source/extension/extension_points.rst
+++ b/docs/source/extension/extension_points.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _developer-extension-points:
 
 Common Extension Points
@@ -11,7 +14,7 @@ Following the list of core tokens is a guide for using some of JupyterLab's most
 However, it is not an exhaustive account of how to extend the application components,
 and more detailed descriptions of their public APIs may be found in the
 `JupyterLab <../api/index.html>`__ and
-`Lumino <https://lumino.readthedocs.io/en/1.x/api/>`__ API documentation.
+`Lumino <https://lumino.readthedocs.io/>`__ API documentation.
 
 .. contents:: Table of contents
     :local:
@@ -19,6 +22,16 @@ and more detailed descriptions of their public APIs may be found in the
 
 .. _core_tokens:
 
+Core Plugins
+------------
+
+The core packages of JupyterLab provide the following plugins. They can be
+enabled or disabled using the command ``jupyter labextension enable <plugin-id>`` or
+``jupyter labextension disable <plugin-id>``.
+
+.. include:: plugins_list.rst
+   :parser: myst_parser.sphinx_
+
 Core Tokens
 -----------
 
@@ -26,113 +39,8 @@ The core packages of JupyterLab provide many services for plugins. The tokens
 for these services are listed here, along with short descriptions of when you
 might want to use the services in your extensions.
 
-- ``@jupyterlab/application:IConnectionLost``: A service for invoking the dialog shown
-  when JupyterLab has lost its connection to the server. Use this if, for some reason,
-  you want to bring up the "connection lost" dialog under new circumstances.
-- ``@jupyterlab/application:IInfo``: A service providing metadata about the current
-  application, including disabled extensions and whether dev mode is enabled.
-- ``@jupyterlab/application:IPaths``: A service providing information about various
-  URLs and server paths for the current application. Use this service if you want to
-  assemble URLs to use the JupyterLab REST API.
-- ``@jupyterlab/application:ILabStatus``: A service for interacting with the application busy/dirty
-  status. Use this if you want to set the application "busy" favicon, or to set
-  the application "dirty" status, which asks the user for confirmation before leaving the application page.
-- ``@jupyterlab/application:ILabShell``: A service for interacting with the JupyterLab shell.
-  The top-level ``application`` object also has a reference to the shell, but it has a restricted
-  interface in order to be agnostic to different shell implementations on the application.
-  Use this to get more detailed information about currently active widgets and layout state.
-- ``@jupyterlab/application:ILayoutRestorer``: A service providing application layout
-  restoration functionality. Use this to have your activities restored across
-  page loads.
-- ``@jupyterlab/application:IMimeDocumentTracker``: A widget tracker for documents
-  rendered using a mime renderer extension. Use this if you want to list and interact
-  with documents rendered by such extensions.
-- ``@jupyterlab/application:IRouter``: The URL router used by the application.
-  Use this to add custom URL-routing for your extension (e.g., to invoke
-  a command if the user navigates to a sub-path).
-- ``@jupyterlab/apputils:ICommandPalette``: A service for the application command palette
-  in the left panel. Use this to add commands to the palette.
-- ``@jupyterlab/apputils:ISplashScreen``: A service for the splash screen for the application.
-  Use this if you want to show the splash screen for your own purposes.
-- ``@jupyterlab/apputils:IThemeManager``: A service for the theme manager for the application. This is used primarily in theme extensions to register new themes.
-- ``@jupyterlab/apputils:IToolbarWidgetRegistry``: A registry for toolbar widgets. Require this
-  if you want to build the toolbar dynamically from a data definition (stored in settings for example).
-- ``@jupyterlab/apputils:IWindowResolver``: A service for a window resolver for the
-  application. JupyterLab workspaces are given a name, which are determined using
-  the window resolver. Require this if you want to use the name of the current workspace.
-- ``@jupyterlab/codeeditor:IEditorServices``: A service for the text editor provider
-  for the application. Use this to create new text editors and host them in your
-  UI elements.
-- ``@jupyterlab/completer:ICompletionManager``: A service for the completion manager
-  for the application. Use this to allow your extension to invoke a completer.
-- ``@jupyterlab/console:IConsoleTracker``: A widget tracker for code consoles.
-  Use this if you want to be able to iterate over and interact with code consoles
-  created by the application.
-- ``@jupyterlab/console:IContentFactory``: A factory object that creates new code
-  consoles. Use this if you want to create and host code consoles in your own UI elements.
-- ``@jupyterlab/docmanager:IDocumentManager``: A service for the manager for all
-  documents used by the application. Use this if you want to open and close documents,
-  create and delete files, and otherwise interact with the file system.
-- ``@jupyterlab/docprovider:IDocumentProviderFactory``: A factory object that creates new providers for
-  shared documents. Use this if you want to create a provider for a new shared document.
-- ``@jupyterlab/documentsearch:ISearchProviderRegistry``: A service for a registry of search
-  providers for the application. Plugins can register their UI elements with this registry
-  to provide find/replace support.
-- ``@jupyterlab/filebrowser:IFileBrowserFactory``: A factory object that creates file browsers.
-  Use this if you want to create your own file browser (e.g., for a custom storage backend),
-  or to interact with other file browsers that have been created by extensions.
-- ``@jupyterlab/fileeditor:IEditorTracker``: A widget tracker for file editors.
-  Use this if you want to be able to iterate over and interact with file editors
-  created by the application.
-- ``@jupyterlab/htmlviewer:IHTMLViewerTracker``: A widget tracker for rendered HTML documents.
-  Use this if you want to be able to iterate over and interact with HTML documents
-  viewed by the application.
-- ``@jupyterlab/imageviewer:IImageTracker``: A widget tracker for images.
-  Use this if you want to be able to iterate over and interact with images
-  viewed by the application.
-- ``@jupyterlab/inspector:IInspector``: A service for adding contextual help to widgets (visible using "Show Contextual Help" from the Help menu).
-  Use this to hook into the contextual help system in your extension.
-- ``@jupyterlab/launcher:ILauncher``: A service for the application activity launcher.
-  Use this to add your extension activities to the launcher panel.
-- ``@jupyterlab/mainmenu:IMainMenu``: A service for the main menu bar for the application.
-  Use this if you want to add your own menu items or provide implementations for standardized menu items for specific activities.
-- ``@jupyterlab/markdownviewer:IMarkdownViewerTracker``: A widget tracker for markdown
-  document viewers. Use this if you want to iterate over and interact with rendered markdown documents.
-- ``@jupyterlab/notebook:INotebookTools``: A service for the ``Notebook Tools`` panel in the
-  right sidebar. Use this to add your own functionality to the panel.
-- ``@jupyterlab/notebook:IContentFactory``: A factory object that creates new notebooks.
-  Use this if you want to create and host notebooks in your own UI elements.
-- ``@jupyterlab/notebook:INotebookTracker``: A widget tracker for notebooks.
-  Use this if you want to be able to iterate over and interact with notebooks
-  created by the application.
-- ``@jupyterlab/rendermime:IRenderMimeRegistry``: A service for the rendermime registry
-  for the application. Use this to create renderers for various mime-types in your extension. Many times it will be easier to create a `mime renderer extension <#mime-renderer-extensions>`__ rather than using this service directly.
-- ``@jupyterlab/rendermime:ILatexTypesetter``: A service for the LaTeX typesetter for the
-  application. Use this if you want to typeset math in your extension.
-- ``@jupyterlab/settingeditor:ISettingEditorTracker``: A widget tracker for setting editors.
-  Use this if you want to be able to iterate over and interact with setting editors
-  created by the application.
-- ``@jupyterlab/settingregistry:ISettingRegistry``: A service for the JupyterLab settings system.
-  Use this if you want to store settings for your application.
-  See :ref:`schemaDir` for more information.
-- ``@jupyterlab/statedb:IStateDB``: A service for the JupyterLab state database.
-  Use this if you want to store data that will persist across page loads.
-  See `state database <#state-database>`__ for more information.
-- ``@jupyterlab/statusbar:IStatusBar``: A service for the status bar on the application.
-  Use this if you want to add new status bar items.
-- ``@jupyterlab/terminal:ITerminalTracker``: A widget tracker for terminals.
-  Use this if you want to be able to iterate over and interact with terminals
-  created by the application.
-- ``@jupyterlab/tooltip:ITooltipManager``: A service for the tooltip manager for the application.
-  Use this to allow your extension to invoke a tooltip.
-- ``@jupyterlab/collaboration:IGlobalAwareness``: A service for the global awareness, providing information about other collaborators.
-- ``@jupyterlab/collaboration:ICurrentUser``: A service for the current user information.
-  Use this if you want to access to the identity of the current connected user.
-- ``@jupyterlab/collaboration:IUserMenu``: A service for the user menu on the application.
-  Use this if you want to add new items to the user menu.
-- ``@jupyterlab/vdom:IVDOMTracker``: A widget tracker for virtual DOM (VDOM) documents.
-  Use this to iterate over and interact with VDOM document instances created by the application.
-
+.. include:: tokens_list.rst
+   :parser: myst_parser.sphinx_
 
 
 Commands
@@ -183,7 +91,7 @@ a string value or a function that returns a string value.
 
 There are several more options which can be passed into the command registry when
 adding new commands. These are documented
-`here <https://lumino.readthedocs.io/en/1.x/api/commands/interfaces/commandregistry.icommandoptions.html>`__.
+`here <https://lumino.readthedocs.io/en/latest/api/interfaces/commands.CommandRegistry.ICommandOptions.html>`__.
 
 After a command has been added to the application command registry
 you can add them to various places in the application user interface,
@@ -261,19 +169,18 @@ A list of CSS selectors currently used by context menu commands is given in :ref
 
 Item must follow this definition:
 
-.. literalinclude:: ../snippets/packages/settingregistry/src/plugin-schema.json
+.. literalinclude:: ../snippets/packages/settingregistry/src/jupyter.lab.menus.json
    :language: json
-   :lines: 37-55
+   :lines: 14-34
 
 where ``menuItem`` definition is:
 
-.. literalinclude:: ../snippets/packages/settingregistry/src/plugin-schema.json
+.. literalinclude:: ../snippets/packages/settingregistry/src/menuItem.json
    :language: json
-   :lines: 158-196
 
 
 The same example using the API is shown below. See the Lumino `docs
-<https://lumino.readthedocs.io/en/1.x/api/widgets/interfaces/contextmenu.iitemoptions.html>`__
+<https://lumino.readthedocs.io/en/latest/api/interfaces/widgets.ContextMenu.IItemOptions.html>`__
 for the item creation options.
 
 .. code:: typescript
@@ -305,7 +212,7 @@ Alternatively, you can use a 'contextmenu' event listener and
 call ``event.stopPropagation`` to prevent the application context menu
 handler from being called (it is listening in the bubble phase on the
 ``document``). At this point you could show your own Lumino
-`contextMenu <https://lumino.readthedocs.io/en/1.x/api/widgets/classes/contextmenu.html>`__,
+`contextMenu <https://lumino.readthedocs.io/en/latest/api/modules/widgets.ContextMenu.html>`__,
 or simply stop propagation and let the system context menu be shown.
 This would look something like the following in a ``Widget`` subclass:
 
@@ -363,7 +270,7 @@ browser supports overriding the behavior of this item.
        },
        isVisible: () =>
          tracker.currentWidget &&
-         toArray(tracker.currentWidget.selectedItems()).length === 1,
+         Array.from(tracker.currentWidget.selectedItems()).length === 1,
        iconClass: 'jp-MaterialIcon jp-LinkIcon',
        label: 'Copy Shareable Link'
      });
@@ -406,7 +313,7 @@ the shortcut handler propagates up the DOM tree from the focused element
 and tests each element against the registered selectors. If a match is found,
 then that command is executed with the provided ``args``.
 Full documentation for the options for ``addKeyBinding`` can be found
-`here <https://lumino.readthedocs.io/en/1.x/api/commands/interfaces/commandregistry.ikeybindingoptions.html>`__.
+`here <https://lumino.readthedocs.io/en/latest/api/interfaces/commands.CommandRegistry.IKeyBindingOptions.html>`__.
 
 JupyterLab also provides integration with its settings system for keyboard shortcuts.
 Your extension can provide a settings schema with a ``jupyter.lab.shortcuts`` key,
@@ -426,6 +333,31 @@ declaring default keyboard shortcuts for a command:
 
 Shortcuts added to the settings system will be editable by users.
 
+From Jupyterlab version 3.1 onwards, it is possible to execute multiple commands with a single shortcut.
+This requires you to define a keyboard shortcut for ``apputils:run-all-enabled`` command:
+
+.. code:: json
+
+    {
+      "command": "apputils:run-all-enabled",
+      "keys": ["Accel T"],
+      "args": {
+          "commands": [
+              "my-command-1",
+              "my-command-2"
+          ],
+          "args": [
+              {},
+              {}
+            ]
+        },
+      "selector": "body"
+    }
+
+In this example ``my-command-1`` and ``my-command-2`` are passed in ``args``
+of ``apputils:run-all-enabled`` command as ``commands`` list.
+You can optionally pass the command arguments of ``my-command-1`` and ``my-command-2`` in ``args``
+of ``apputils:run-all-enabled`` command as ``args`` list.
 
 Launcher
 --------
@@ -451,7 +383,7 @@ Jupyter Front-End Shell
 -----------------------
 
 The Jupyter front-end
-`shell <../api/interfaces/application.jupyterfrontend.ishell.html>`__
+`shell <../api/interfaces/application.JupyterFrontEnd.IShell.html>`__
 is used to add and interact with content in the application. The ``IShell``
 interface provides an ``add()`` method for adding widgets to the application.
 In JupyterLab, the application shell consists of:
@@ -464,6 +396,22 @@ In JupyterLab, the application shell consists of:
 -  A ``bottom`` area for things like status bars.
 -  A ``header`` area for custom elements.
 
+Top Area
+^^^^^^^^
+
+The top area is intended to host most persistent user interface elements that span the whole session of a user.
+A toolbar named **TopBar** is available on the right of the main menu bar. For example, JupyterLab adds a user
+dropdown to that toolbar when started in ``collaborative`` mode.
+
+See :ref:`generic toolbars <generic-toolbar>` to see how to add a toolbar or a custom widget to a toolbar.
+
+You can use a numeric rank to control the ordering of top bar items in the settings; see :ref:`Toolbar definitions <toolbar-settings-definition>`.
+
+JupyterLab adds a spacer widget to the top bar at rank ``50`` by default.
+You can then use the following guidelines to place your items:
+
+* ``rank <= 50`` to place items to the left side in the top bar
+* ``rank > 50`` to place items to the right side in the top bar
 
 Left/Right Areas
 ^^^^^^^^^^^^^^^^
@@ -570,6 +518,9 @@ Here is the list of default menu ids:
 
 - Edit menu: ``jp-mainmenu-edit``
 - View menu: ``jp-mainmenu-view``
+
+  * Appearance submenu: ``jp-mainmenu-view-appearance``
+
 - Run menu: ``jp-mainmenu-run``
 - Kernel menu: ``jp-mainmenu-kernel``
 - Tabs menu: ``jp-mainmenu-tabs``
@@ -580,15 +531,14 @@ The default main menu is defined in the ``mainmenu-extension`` package settings.
 
 A menu must respect the following schema:
 
-.. literalinclude:: ../snippets/packages/settingregistry/src/plugin-schema.json
+.. literalinclude:: ../snippets/packages/settingregistry/src/jupyter.lab.menus.json
    :language: json
-   :lines: 101-157
+   :lines: 5-13
 
 And an item must follow:
 
-.. literalinclude:: ../snippets/packages/settingregistry/src/plugin-schema.json
+.. literalinclude:: ../snippets/packages/settingregistry/src/menu.json
    :language: json
-   :lines: 158-196
 
 Menus added to the settings system will be editable by users using the ``mainmenu-extension``
 settings. In particular, they can be disabled at the item or the menu level by setting the
@@ -609,7 +559,7 @@ Adding a New Menu
 ~~~~~~~~~~~~~~~~~
 
 To add a new menu to the menu bar, you need to create a new
-`Lumino menu <https://lumino.readthedocs.io/en/1.x/api/widgets/classes/menu.html>`__.
+`Lumino menu <https://lumino.readthedocs.io/en/latest/api/classes/widgets.Menu-1.html>`__.
 
 You can then add commands to the menu in a similar way to the command palette,
 and add that menu to the main menu bar:
@@ -671,23 +621,12 @@ Here is an example of using the ``closeAndCleaners`` semantic menu item:
 .. code:: typescript
 
     mainMenu.fileMenu.closeAndCleaners.add({
-      tracker,
-      action: 'Shutdown',
-      name: 'My Activity',
-      closeAndCleanup: current => {
-        current.close();
-        return current.shutdown();
-      }
+      id: 'notebook:close-and-shutdown',
+      isEnabled: (w: Widget) => tracker.currentWidget !== null && tracker.has(w)
     });
 
 In this example, ``tracker`` is a :ref:`widget-tracker`, which allows the menu
-item to determine whether to delegate the menu command to your activity,
-``name`` is a name given to your activity in the menu label,
-``action`` is a verb given to the cleanup operation in the menu label,
-and ``closeAndCleanup`` is the actual function that performs the cleanup operation.
-So if the current application activity is held in the ``tracker``,
-then the menu item will show ``Shutdown My Activity``, and delegate to the
-``closeAndCleanup`` function that was provided.
+item to determine whether to delegate the menu command to your activity, and ``id`` is a the command identifier.
 
 More examples for how to register semantic menu items are found throughout the JupyterLab code base.
 The available semantic menu items are:
@@ -756,20 +695,20 @@ A typical example is the notebook toolbar as in the snippet below:
      let toolbarFactory:
        | ((widget: NotebookPanel) => DocumentRegistry.IToolbarItem[])
        | undefined;
-   
+
      // Register notebook toolbar specific widgets
      if (toolbarRegistry) {
        toolbarRegistry.registerFactory<NotebookPanel>(FACTORY, 'cellType', panel =>
          ToolbarItems.createCellTypeItem(panel, translator)
        );
-       
+
        toolbarRegistry.registerFactory<NotebookPanel>(
          FACTORY,
          'kernelStatus',
          panel => Toolbar.createKernelStatusItem(panel.sessionContext, translator)
        );
-       // etc... 
-     
+       // etc...
+
        if (settingRegistry) {
          // Create the factory
          toolbarFactory = createToolbarFactory(
@@ -783,7 +722,7 @@ A typical example is the notebook toolbar as in the snippet below:
          );
        }
      }
-   
+
      const factory = new NotebookWidgetFactory({
        name: FACTORY,
        fileTypes: ['notebook'],
@@ -795,19 +734,21 @@ A typical example is the notebook toolbar as in the snippet below:
      });
      app.docRegistry.addWidgetFactory(factory);
 
-The registry ``registerFactory`` method allows an extension to provide special widget for a unique pair 
+The registry ``registerFactory`` method allows an extension to provide special widget for a unique pair
 (factory name, toolbar item name). Then the helper ``createToolbarFactory`` can be used to extract the
 toolbar definition from the settings and build the factory to pass to the widget factory.
 
 The default toolbar items can be defined across multiple extensions by providing an entry in the ``"jupyter.lab.toolbars"``
 mapping. For example for the notebook panel:
 
+.. _toolbar-settings-definition:
+
 .. code:: js
- 
+
    "jupyter.lab.toolbars": {
      "Notebook": [ // Factory name
        // Item with non-default widget - it must be registered within an extension
-       { 
+       {
          "name": "save", // Unique toolbar item name
          "rank": 10 // Item rank
        },
@@ -821,7 +762,7 @@ mapping. For example for the notebook panel:
        { "name": "restart", "command": "kernelmenu:restart", "rank": 32 },
        {
          "name": "restart-and-run",
-         "command": "runmenu:restart-and-run-all",
+         "command": "notebook:restart-run-all",
          "rank": 33 // The default rank is 50
        },
        { "name": "cellType", "rank": 40 },
@@ -866,11 +807,14 @@ The current widget factories supporting the toolbar customization are:
 - ``CSVTable``: CSV (Comma Separated Value) Viewer toolbar
 - ``TSVTable``: TSV (Tabulation Separated Value) Viewer toolbar
 
-Add the toolbar item must follow this definition:
+.. _toolbar-item:
 
-.. literalinclude:: ../snippets/packages/settingregistry/src/plugin-schema.json
+And the toolbar item must follow this definition:
+
+.. literalinclude:: ../snippets/packages/settingregistry/src/toolbarItem.json
    :language: json
-   :lines: 207-252
+
+.. _generic-toolbar:
 
 Generic Widget with Toolbar
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -879,9 +823,11 @@ The logic detailed in the previous section can be used to customize any widgets
 
 The additional keys used in ``jupyter.lab.toolbars`` settings attributes are:
 
+- ``Cell``: Cell toolbar
 - ``FileBrowser``: Default file browser panel toolbar items
+- ``TopBar``: Top area toolbar (right of the main menu bar)
 
-Here is an example for enabling that definition on a widget:
+Here is an example for enabling a toolbar on a widget:
 
 .. code:: typescript
 
@@ -905,16 +851,21 @@ Here is an example for enabling that definition on a widget:
 
      // - Link the widget toolbar and its definition from the settings
      setToolbar(
-       browser,
+       browser, // This widget is the one passed to the toolbar item factory
        createToolbarFactory(
          toolbarRegistry,
          settings,
          'FileBrowser', // Factory name
          plugin.id,
          translator
-       )
+       ),
+       // You can explicitly pass the toolbar widget if it is not accessible as `toolbar` attribute
+       // toolbar,
      );
 
+See :ref:`Toolbar definitions <toolbar-settings-definition>` example on how to define the toolbar
+items in the settings.
+
 .. _widget-tracker:
 
 Widget Tracker
@@ -972,3 +923,38 @@ a plugin:
         return foo;
       }
     };
+
+LSP Features
+--------------
+
+JupyterLab provides an infrastructure to communicate with the language servers. If the LSP services are activated and users have language servers installed, JupyterLab will start the language servers for the language of the opened notebook or file. Extension authors can access the virtual documents and the associated LSP connection of opened document by requiring the ``ILSPDocumentConnectionManager`` token from ``@jupyterlab/lsp``.
+
+Here is an example for making requests to the language server.
+
+.. code:: typescript
+
+  const plugin: JupyterFrontEndPlugin<void> = {
+    id,
+    autoStart: true,
+    requires: [ILSPDocumentConnectionManager],
+    activate: async (app: JupyterFrontEnd, manager: ILSPDocumentConnectionManager): Promise<void> => {
+
+      // Get the path to the opened notebook of file
+      const path = ...
+
+      // Get the widget adapter of opened document
+      const adapter = manager.adapters.get(path);
+      if (!adapter) {
+        return
+      }
+      // Get the associated virtual document of the opened document
+      const virtualDocument = adapter.virtualDocument;
+
+      // Get the LSP connection of the virtual document.
+      const connection = manager.connections.get(document.uri);
+      ...
+      // Send completion request to the language server
+      const response = await connection.clientRequests['textDocument/completion'].request(params);
+      ...
+    }
+  };
diff --git a/docs/source/extension/extension_tutorial.rst b/docs/source/extension/extension_tutorial.rst
index 68e33ed8d44e..46f0e2e5566f 100644
--- a/docs/source/extension/extension_tutorial.rst
+++ b/docs/source/extension/extension_tutorial.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _extension_tutorial:
 
 Extension Tutorial
@@ -17,7 +20,7 @@ By working through this tutorial, you'll learn:
 -  How to set up an extension development environment from scratch on a
    Linux or OSX machine. (You'll need to modify the commands slightly if you are on Windows.)
 -  How to start an extension project from
-   `jupyterlab/extension-cookiecutter-ts <https://github.com/jupyterlab/extension-cookiecutter-ts>`__
+   `jupyterlab/extension-template <https://github.com/jupyterlab/extension-template>`__
 -  How to iteratively code, build, and load your extension in JupyterLab
 -  How to version control your work with git
 -  How to release your extension for others to enjoy
@@ -47,8 +50,8 @@ Install NodeJS, JupyterLab, etc. in a conda environment
 
 Next create a conda environment that includes:
 
-1. the latest release of JupyterLab
-2. `cookiecutter <https://github.com/audreyr/cookiecutter>`__, the tool
+1. The latest release of JupyterLab
+2. `copier <https://copier.readthedocs.io>`__ and some dependencies, the tool
    you'll use to bootstrap your extension project structure (this is a Python tool
    which we'll install using conda below).
 3. `NodeJS <https://nodejs.org>`__, the JavaScript runtime you'll use to
@@ -63,7 +66,7 @@ new environment named ``jupyterlab-ext``.
 
 .. code:: bash
 
-    conda create -n jupyterlab-ext --override-channels --strict-channel-priority -c conda-forge -c nodefaults jupyterlab=3 cookiecutter nodejs jupyter-packaging git
+    conda create -n jupyterlab-ext --override-channels --strict-channel-priority -c conda-forge -c nodefaults jupyterlab=4 nodejs=18 git copier=7 jinja2-time
 
 Now activate the new environment so that all further commands you run
 work out of that environment.
@@ -81,64 +84,74 @@ Create a repository
 -------------------
 
 Create a new repository for your extension (see, for example, the
-`GitHub instructions <https://docs.github.com/en/get-started/quickstart/create-a-repo>`__. This is an
+`GitHub instructions <https://docs.github.com/en/get-started/quickstart/create-a-repo>`__). This is an
 optional step, but highly recommended if you want to share your
 extension.
 
 Create an extension project
 ---------------------------
 
-Initialize the project from a cookiecutter
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Initialize the project from the template
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Next use cookiecutter to create a new project for your extension.
+Next use copier to create a new project for your extension.
 This will create a new folder for your extension in your current directory.
 
 .. code:: bash
 
-    cookiecutter https://github.com/jupyterlab/extension-cookiecutter-ts
+    mkdir my_first_extension
+    cd my_first_extension
+    copier copy https://github.com/jupyterlab/extension-template .
 
-When prompted, enter values like the following for all of the cookiecutter
+When prompted, enter values like the following for all of the template
 prompts (``apod`` stands for Astronomy Picture of the Day, the NASA service we
 are using to fetch pictures).
 
 .. code:: bash
 
-    Select kind:
-    1 - frontend
-    2 - server
-    3 - theme
-    Choose from 1, 2, 3 [1]: 1
-    author_name [My Name]: Your Name
-    author_email [me@test.com]: your@name.org
-    labextension_name [myextension]: jupyterlab_apod
-    python_name [jupyterlab_apod]: jupyterlab_apod
-    project_short_description [A JupyterLab extension.]: Show a random NASA Astronomy Picture of the Day in a JupyterLab panel
-    has_settings [n]: n
-    has_binder [n]: y
-    test [y]: y
-    repository [https://github.com/github_username/jupyterlab_apod]: https://github.com/github_username/jupyterlab_apod
+    What is your extension kind?
+    (Use arrow keys)
+     frontend
+    Extension author name
+     Your Name
+    Extension author email
+     your@name.org
+    JavaScript package name
+     jupyterlab_apod
+    Python package name
+     jupyterlab_apod
+    Extension short description
+     Show a random NASA Astronomy Picture of the Day in a JupyterLab panel
+    Does the extension have user settings?
+     N
+    Do you want to set up Binder example?
+     Y
+    Do you want to set up test for the extension?
+     Y
+    Git remote repository URL
+     https://github.com/github_username/jupyterlab_apod
 
-Notes:
+.. note::
 
-- If you are not using a repository, leave the repository field blank. You can come back and edit the repository field in the ``package.json`` file later.
+  - If you are not using a repository, leave the repository field blank. You can come back and edit the repository field in the ``package.json`` file later.
+  - If you are using the latest version of the template, you will notice that tests are included in the template. If you don't want to include them just answer ``n`` to the test prompt.
 
-- If you are using the latest version of ``cookiecutter`` you will notice that tests are included in the template. If you don't want to include them just insert ``n`` .
 
+List the files.
 
-Change to the directory the cookiecutter created and list the files.
+.. code-block:: shell
 
-.. code:: bash
-
-    cd jupyterlab_apod
-    ls
+    ls -a
 
 You should see a list like the following.
 
-::
+.. code-block::
 
-    CHANGELOG.md    README.md       babel.config.js install.json    jupyterlab_apod pyproject.toml  src       tsconfig.json
-    LICENSE         RELEASE.md      binder          jest.config.js  package.json    setup.py        style     ui-tests
+    .copier-answers.yml  .github          .gitignore      .prettierignore     .yarnrc.yml
+    babel.config.js      jest.config.js   pyproject.toml  src                 ui-tests
+    binder               jupyterlab_apod  README.md       style               yarn.lock
+    CHANGELOG.md         LICENSE          RELEASE.md      tsconfig.json
+    install.json         package.json     setup.py        tsconfig.test.json
 
 Commit what you have to git
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -150,14 +163,15 @@ initialize it as a git repository and commit the current code.
 
     git init
     git add .
-    git commit -m 'Seed apod project from cookiecutter'
+    git commit -m 'Seed apod project from extension template'
 
-Note: This step is not technically necessary, but it is good practice to
-track changes in version control system in case you need to rollback to
-an earlier version or want to collaborate with others. You
-can compare your work throughout this tutorial with the commits in a
-reference version of ``jupyterlab_apod`` on GitHub at
-https://github.com/jupyterlab/jupyterlab_apod.
+.. note::
+   This step is not technically necessary, but it is good practice to
+   track changes in version control system in case you need to rollback to
+   an earlier version or want to collaborate with others. You
+   can compare your work throughout this tutorial with the commits in a
+   reference version of ``jupyterlab_apod`` on GitHub at
+   https://github.com/jupyterlab/jupyterlab_apod.
 
 
 Build and install the extension for development
@@ -184,7 +198,7 @@ JupyterLab:
 
 .. note::
 
-   On Windows, symbolic links can be activated on Windows 10 for Python version 3.8 or higher
+   On Windows, symbolic links can be activated on Windows 10 or above for Python version 3.8 or higher
    by activating the 'Developer Mode'. That may not be allowed by your administrators.
    See `Activate Developer Mode on Windows <https://docs.microsoft.com/en-us/windows/apps/get-started/enable-your-device-for-development>`__
    for instructions.
@@ -213,10 +227,12 @@ After you reload the page with the console open, you should see a message that s
 ``JupyterLab extension jupyterlab_apod is activated!`` in the console.
 If you do, congratulations, you're ready to start modifying the extension!
 If not, go back make sure you didn't miss a step, and `reach
-out <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/README.md#getting-help>`__ if you're stuck.
+out <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/README.md#getting-help>`__ if you're stuck.
+
+.. note::
 
-Note: Leave the terminal running the ``jupyter lab`` command open and running
-JupyterLab to see the effects of changes below.
+   Leave the terminal running the ``jupyter lab`` command open and running
+   JupyterLab to see the effects of changes below.
 
 
 Add an Astronomy Picture of the Day widget
@@ -248,13 +264,14 @@ Locate the ``plugin`` object of type ``JupyterFrontEndPlugin``. Change the
 definition so that it reads like so:
 
 .. code-block:: typescript
-    :emphasize-lines: 5,7-8,10
+    :emphasize-lines: 5,8-9,11
 
     /**
      * Initialization data for the jupyterlab_apod extension.
      */
     const plugin: JupyterFrontEndPlugin<void> = {
       id: 'jupyterlab-apod',
+      description: 'Show a random NASA Astronomy Picture of the Day in a JupyterLab panel.',
       autoStart: true,
       requires: [ICommandPalette],
       activate: (app: JupyterFrontEnd, palette: ICommandPalette) => {
@@ -277,8 +294,7 @@ repository root folder to install the dependencies and save them to your
 
 .. code:: bash
 
-    jlpm add @jupyterlab/apputils
-    jlpm add @jupyterlab/application
+    jlpm add @jupyterlab/apputils @jupyterlab/application
 
 Finally, run the following to rebuild your extension.
 
@@ -306,7 +322,7 @@ build command for errors and correct your code.
     ICommandPalette: Palette {_palette: CommandPalette}
 
 Note that we had to run ``jlpm run build`` in order for the bundle to
-update. This command does two things: compiles the TypeScript files in `src/`
+update. This command does two things: compiles the TypeScript files in ``src/```
 into JavaScript files in ``lib/`` (``jlpm run build``), then bundles the
 JavaScript files in ``lib/`` into a JupyterLab extension in
 ``jupyterlab_apod/static`` (``jlpm run build:extension``). If you wish to avoid
@@ -339,10 +355,11 @@ only modifying the contents of that function, so make sure your braces match,
 and leave the* ``export default plugin`` *part lower down intact)*:
 
 .. code-block:: typescript
-    :emphasize-lines: 5-41
+    :emphasize-lines: 6-42
 
     const plugin: JupyterFrontEndPlugin<void> = {
       id: 'jupyterlab-apod',
+      description: 'Show a random NASA Astronomy Picture of the Day in a JupyterLab panel.',
       autoStart: true,
       requires: [ICommandPalette],
       activate: (app: JupyterFrontEnd, palette: ICommandPalette) => {
@@ -418,7 +435,7 @@ The single *Astronomy Picture* tab should come to the foreground.
 
 If your widget is not behaving, compare your code with the reference
 project state at the `01-show-a-panel
-tag <https://github.com/jupyterlab/jupyterlab_apod/tree/3.5-01-show-a-panel>`__.
+tag <https://github.com/jupyterlab/jupyterlab_apod/tree/4.0-01-show-a-panel>`__.
 Once you've got everything working properly, git commit your changes and
 carry on.
 
@@ -548,7 +565,7 @@ of these problems in the upcoming sections.
 
 If you don't see a image at all, compare your code with the
 `02-show-an-image
-tag <https://github.com/jupyterlab/jupyterlab_apod/tree/3.5-02-show-an-image>`__
+tag <https://github.com/jupyterlab/jupyterlab_apod/tree/4.0-02-show-an-image>`__
 in the reference project. When it's working, make another git commit.
 
 .. code:: bash
@@ -662,7 +679,7 @@ of the image.
 
 If anything is not working correctly, compare your code with the reference project
 `03-style-and-attribute
-tag <https://github.com/jupyterlab/jupyterlab_apod/tree/3.5-03-style-and-attribute>`__.
+tag <https://github.com/jupyterlab/jupyterlab_apod/tree/4.0-03-style-and-attribute>`__.
 When everything is working as expected, make another commit.
 
 .. code:: bash
@@ -838,7 +855,7 @@ image.
 
 If anything is not working correctly, compare your code with the
 `04-refactor-and-refresh
-tag <https://github.com/jupyterlab/jupyterlab_apod/tree/3.5-04-refactor-and-refresh>`__
+tag <https://github.com/jupyterlab/jupyterlab_apod/tree/4.0-04-refactor-and-refresh>`__
 to debug. Once it is working properly, commit it.
 
 .. code:: bash
@@ -877,14 +894,15 @@ entire list of import statements looks like the following (Adding
     import { Widget } from '@lumino/widgets';
 
 Then add the ``ILayoutRestorer`` interface to the ``JupyterFrontEndPlugin``
-definition. This addition passes the global ``LayoutRestorer`` as the
+definition as ``optional``. This addition passes the global ``LayoutRestorer`` as the
 third parameter of the ``activate`` function.
 
 .. code-block:: typescript
-    :emphasize-lines: 5
+    :emphasize-lines: 6
 
     const plugin: JupyterFrontEndPlugin<void> = {
       id: 'jupyterlab-apod',
+      description: 'Show a random NASA Astronomy Picture of the Day in a JupyterLab panel.',
       autoStart: true,
       requires: [ICommandPalette],
       optional: [ILayoutRestorer],
@@ -893,8 +911,8 @@ third parameter of the ``activate`` function.
 
 Here ``ILayoutRestorer`` is specified as an ``optional`` token, as the corresponding service might
 not be available in a customized JupyterLab distribution that does not provide layout restoration
-functionalities. Having it ``optional`` makes it a nice-to-have, and lets your extension be loaded
-in more applications.
+functionalities. Having it ``optional`` make it a nice to have, and enable your extension to be loaded
+in more JupyterLab based applications.
 
 .. note::
 
@@ -905,9 +923,11 @@ Finally, rewrite the ``activate`` function so that it:
 
 1. Declares a widget variable, but does not create an instance
    immediately.
-2. Constructs a ``WidgetTracker`` and tells the ``ILayoutRestorer``
+2. Adds the global ``LayoutRestorer`` as the third parameter of the ``activate`` function.
+   This parameter is declared as ``ILayoutRestorer | null`` since the token is specified as ``optional``.
+3. Constructs a ``WidgetTracker`` and tells the ``ILayoutRestorer``
    to use it to save/restore panel state.
-3. Creates, tracks, shows, and refreshes the widget panel appropriately.
+4. Creates, tracks, shows, and refreshes the widget panel appropriately.
 
 .. code-block:: typescript
 
@@ -974,7 +994,7 @@ after the refresh.
    The completed extension, showing the `Astronomy Picture of the Day for 24 Jul 2015 <https://apod.nasa.gov/apod/ap150724.html>`__.
 
 Refer to the `05-restore-panel-state
-tag <https://github.com/jupyterlab/jupyterlab_apod/tree/3.5-05-restore-panel-state>`__
+tag <https://github.com/jupyterlab/jupyterlab_apod/tree/4.0-05-restore-panel-state>`__
 if your extension is not working correctly. Make a commit when the state of your
 extension persists properly.
 
@@ -991,8 +1011,8 @@ of this tutorial.
 Packaging your extension
 ------------------------
 
-JupyterLab extensions for JupyterLab 3.0 can be distributed as Python
-packages. The cookiecutter template we used contains all of the Python
+JupyterLab extensions for JupyterLab 3.0 and above can be distributed as Python
+packages. The extension template we used contains all of the Python
 packaging instructions in the ``pyproject.toml`` file to wrap your extension in a
 Python package. Before generating a package, we first need to install ``build``.
 
@@ -1066,7 +1086,7 @@ You may want to also publish your extension as a JavaScript package to the
 Automated Releases
 ^^^^^^^^^^^^^^^^^^
 
-If you used the cookiecutter to bootstrap your extension, the repository should already
+If you used the template to bootstrap your extension, the repository should already
 be compatible with the `Jupyter Releaser <https://github.com/jupyter-server/jupyter_releaser>`_.
 
 The Jupyter Releaser provides a set of GitHub Actions Workflows to:
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diff --git a/docs/source/extension/images/code-cell-dom.svg b/docs/source/extension/images/code-cell-dom.svg
new file mode 100644
index 000000000000..4ad71cfb2c2d
--- /dev/null
+++ b/docs/source/extension/images/code-cell-dom.svg
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diff --git a/docs/source/extension/internationalization.rst b/docs/source/extension/internationalization.rst
index 2a710d2bb885..cc77756b183e 100644
--- a/docs/source/extension/internationalization.rst
+++ b/docs/source/extension/internationalization.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Internationalization and Localization
 =====================================
 
@@ -31,7 +34,7 @@ To internationalize your extension, the following tasks are required:
 
     Domain are normalized by replacing ``-`` with ``_`` characters.
 
-3. Wraps all translatable strings with one of the `gettext functions <https://jupyterlab.readthedocs.io/en/3.6.x/api/modules/translation.html#translationbundle>`_.
+3. Wraps all translatable strings with one of the `gettext functions <https://jupyterlab.readthedocs.io/en/stable/api/modules/translation.html#translationbundle>`_.
 
 Examples:
 
diff --git a/docs/source/extension/notebook.rst b/docs/source/extension/notebook.rst
index 7c60fe394ef0..67a3ad9d7738 100644
--- a/docs/source/extension/notebook.rst
+++ b/docs/source/extension/notebook.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Notebook
 ========
 
@@ -19,9 +22,9 @@ The most complicated plugin included in the **JupyterLab application**
 is the **Notebook plugin**.
 
 The
-`NotebookWidgetFactory <../api/classes/notebook.notebookwidgetfactory-1.html>`__
+`NotebookWidgetFactory <../api/classes/notebook.NotebookWidgetFactory-1.html>`__
 constructs a new
-`NotebookPanel <../api/classes/notebook.notebookpanel-1.html>`__
+`NotebookPanel <../api/classes/notebook.NotebookPanel-1.html>`__
 from a model and populates the toolbar with default widgets.
 
 Structure of the Notebook plugin
@@ -34,11 +37,11 @@ Model
 ^^^^^
 
 The
-`NotebookModel <../api/classes/notebook.notebookmodel-1.html>`__
+`NotebookModel <../api/classes/notebook.NotebookModel-1.html>`__
 contains an observable list of cells.
 
 A `cell
-model <../api/classes/cells.cellmodel-1.html>`__
+model <../api/classes/cells.CellModel-1.html>`__
 can be:
 
 -  a code cell
@@ -64,10 +67,12 @@ Metadata
 """"""""
 
 The notebook model and the cell model (i.e. notebook cells) support
-getting and setting metadata through an
-`IObservableJSON <../api/modules/observables.iobservablejson.html>`__
-object. You can use this to get and set notebook/cell metadata,
-as well as subscribe to changes to it.
+getting and setting metadata through method ``getMetadata``, ``setMetadata``
+and ``deleteMetadata`` (see `NotebookModel <../api/classes/notebook.NotebookModel-1.html>`__
+and `cell model <../api/classes/cells.CellModel-1.html>`__).
+You can listen for changes in the metadata through the ``sharedModel.metadataChanged`` attribute
+(see `cell shared model <https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedBaseCell.html#metadataChanged>`__
+and `notebook shared model <https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedNotebook-1.html#metadataChanged>`__).
 
 Notebook widget
 ^^^^^^^^^^^^^^^
@@ -77,13 +82,13 @@ a new NotebookPanel from the model. The NotebookPanel widget is added to
 the DockPanel. The **NotebookPanel** contains:
 
 -  a
-   `Toolbar <../api/classes/apputils.toolbar-1.html>`__
+   `Toolbar <../api/classes/ui_components.Toolbar-1.html>`__
 -  a `Notebook
-   widget <../api/classes/notebook.notebook-2.html>`__.
+   widget <../api/classes/notebook.Notebook-1.html>`__.
 
 The NotebookPanel also adds completion logic.
 
-The **NotebookToolbar** maintains a list of widgets to add to the
+The **Notebook toolbar** maintains a list of widgets to add to the
 toolbar. The **Notebook widget** contains the rendering of the notebook
 and handles most of the interaction logic with the notebook itself (such
 as keeping track of interactions such as selected and active cells and
@@ -96,7 +101,7 @@ Higher level actions using NotebookActions
 """"""""""""""""""""""""""""""""""""""""""
 
 Higher-level actions are contained in the
-`NotebookActions <../api/classes/notebook.notebookactions-1.html>`__
+`NotebookActions <../api/classes/notebook.NotebookActions-1.html>`__
 namespace, which has functions, when given a notebook widget, to run a
 cell and select the next cell, merge or split cells at the cursor,
 delete selected cells, etc.
@@ -105,27 +110,58 @@ Widget hierarchy
 """"""""""""""""
 
 A Notebook widget contains a list of `cell
-widgets <../api/classes/cells.cell-1.html>`__,
+widgets <../api/classes/cells.Cell-1.html>`__,
 corresponding to the cell models in its cell list.
 
 -  Each cell widget contains an
-   `InputArea <../api/classes/cells.inputarea-1.html>`__,
+   `InputArea <../api/classes/cells.InputArea-1.html>`__,
 
-   -  which contains n
-      `CodeEditorWrapper <../api/classes/codeeditor.codeeditorwrapper-1.html>`__,
+   -  which contains a
+      `CodeEditorWrapper <../api/classes/codeeditor.CodeEditorWrapper-1.html>`__,
 
       -  which contains a JavaScript CodeMirror instance.
 
 A
-`CodeCell <../api/classes/cells.codecell-1.html>`__
+`CodeCell <../api/classes/cells.CodeCell-1.html>`__
 also contains an
-`OutputArea <../api/classes/outputarea.outputarea-2.html>`__.
+`OutputArea <../api/classes/outputarea.OutputArea-1.html>`__.
 An OutputArea is responsible for rendering the outputs in the
-`OutputAreaModel <../api/classes/outputarea.outputareamodel-1.html>`__
+`OutputAreaModel <../api/classes/outputarea.OutputAreaModel-1.html>`__
 list. An OutputArea uses a notebook-specific
-`RenderMimeRegistry <../api/classes/rendermime.rendermimeregistry-1.html>`__
+`RenderMimeRegistry <../api/classes/rendermime.RenderMimeRegistry-1.html>`__
 object to render ``display_data`` output messages.
 
+The Notebook widget is represented in the DOM with a ``<div>`` element
+with CSS classes ``jp-Notebook`` and ``jp-NotebookPanel-notebook``.
+It contains a sequence of cells widgets.
+
+ - Code cells have the following DOM structure:
+
+   .. image:: images/code-cell-dom.svg
+
+ - Rendered markdown cells have the following DOM structure:
+
+   .. image:: images/rendered-markdown-cell-dom.svg
+
+ - Active markdown cells have the following DOM structure:
+
+   .. image:: images/active-markdown-cell-dom.svg
+
+.. note::
+   The default nbconvert template for the HTML exporter produces the same DOM
+   as the JupyterLab notebook, allowing for the JupyterLab CSS to be used directly.
+   In JupyterLab, input areas are rendered with the CodeMirror, with a custom theme
+   making use of the CSS variables of JupyterLab.
+   In the case of nbconvert, code cells are rendered using the Pygments Python
+   library, which produces static HTML with syntax highlighting. The
+   `jupyterlab_pygments <https://github.com/jupyterlab/jupyterlab_pygments.git>`_
+   Pygments theme mimicks the default CodeMirror theme of JupyterLab.
+
+.. note::
+   The SVG figures presenting the DOM structures of the different cell types
+   were produced with Draw.io, and contain the metadata allowing them to be
+   directly opened and edited with Draw.io.
+
 Rendering output messages
 """""""""""""""""""""""""
 
@@ -154,11 +190,11 @@ Adding a button to the toolbar
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Since JupyterLab 3.2, adding toolbar item can be done using a :ref:`toolbar-registry` and settings. In particular
-for the notebook, if the button is linked to a new command, you can add a button in the toolbar using the 
+for the notebook, if the button is linked to a new command, you can add a button in the toolbar using the
 following JSON snippet in your extension settings file:
 
 .. code:: js
- 
+
    "jupyter.lab.toolbars": {
      "Notebook": [ // Widget factory name for which you want to add a toolbar item.
        // Item with default button widget triggering a command
@@ -171,20 +207,21 @@ You may add a ``rank`` attribute to modify the item position (the default value
 Adding a widget to the notebook header
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Start from the cookie cutter extension template.
+Start from the extension template.
 
-::
+.. code-block:: shell
 
-    pip install cookiecutter
-    cookiecutter https://github.com/jupyterlab/extension-cookiecutter-ts
-    cd my_cookie_cutter_name
+    pip install "copier~=8.0" jinja2-time
+    mkdir myextension
+    cd myextension
+    copier copy --UNSAFE https://github.com/jupyterlab/extension-template .
 
 Install the dependencies. Note that extensions are built against the
 released npm packages, not the development versions.
 
-::
+.. code-block:: shell
 
-    jlpm add -D @jupyterlab/notebook @jupyterlab/application @jupyterlab/ui-components @jupyterlab/docregistry @lumino/disposable @lumino/widgets --legacy-peer-deps
+    jlpm add -D @jupyterlab/notebook @jupyterlab/application @jupyterlab/ui-components @jupyterlab/docregistry @lumino/disposable @lumino/widgets
 
 Copy the following to ``src/index.ts``:
 
@@ -199,9 +236,7 @@ Copy the following to ``src/index.ts``:
       JupyterFrontEndPlugin
     } from '@jupyterlab/application';
 
-    import {
-      DocumentRegistry
-    } from '@jupyterlab/docregistry';
+    import { DocumentRegistry } from '@jupyterlab/docregistry';
 
     import { NotebookPanel, INotebookModel } from '@jupyterlab/notebook';
 
@@ -211,6 +246,7 @@ Copy the following to ``src/index.ts``:
     const plugin: JupyterFrontEndPlugin<void> = {
       activate,
       id: 'my-extension-name:widgetPlugin',
+      description: 'Add a widget to the notebook header.',
       autoStart: true
     };
 
@@ -266,7 +302,7 @@ Copy the following to ``src/index.ts``:
 
 And the following to ``style/base.css``:
 
-.. code:: css
+.. code-block:: css
 
     .jp-myextension-myheader {
         min-height: 20px;
@@ -276,29 +312,27 @@ And the following to ``style/base.css``:
 
 Run the following commands:
 
-::
+.. code-block:: shell
 
     pip install -e .
-    pip install jupyter-packaging
     jupyter labextension develop . --overwrite
     jupyter lab
 
 Open a notebook and observe the new "Header" widget.
 
-
-The *ipywidgets* third party extension
+The *ipywidgets* third party-extension
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 This discussion will be a bit confusing since we've been using the term
 *widget* to refer to *lumino widgets*. In the discussion below,
-*ipython widgets* will be referred to as *ipywidgets*. There is no
-intrinsic relation between *lumino widgets* and *ipython widgets*.
+*Jupyter interactive widgets* will be referred to as *ipywidgets*. There is no
+intrinsic relation between *lumino widgets* and *Jupyter interactive widgets*.
 
 The *ipywidgets* extension registers a factory for a notebook *widget*
 extension using the `Document
-Registry <../api/classes/docregistry.documentregistry-1.html>`__.
+Registry <../api/classes/docregistry.DocumentRegistry-1.html>`__.
 The ``createNew()`` function is called with a NotebookPanel and
-`DocumentContext <../api/interfaces/docregistry.documentregistry.icontext.html>`__.
+`DocumentContext <../api/interfaces/docregistry.DocumentRegistry.IContext.html>`__.
 The plugin then creates a ipywidget manager (which uses the context to
 interact the kernel and kernel's comm manager). The plugin then
 registers an ipywidget renderer with the notebook instance's rendermime
diff --git a/docs/source/extension/ui_components.rst b/docs/source/extension/ui_components.rst
index d7abb9e9d9a5..7261963d5bad 100644
--- a/docs/source/extension/ui_components.rst
+++ b/docs/source/extension/ui_components.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. raw:: html
 
    <!--
@@ -165,9 +168,9 @@ Sync icon color to JupyterLab theme
 
    <em>Example svgs with class annotation can be found in <a href="https://github.com/jupyterlab/jupyterlab/tree/f0153e0258b32674c9aec106383ddf7b618cebab/packages/ui-components/style/icons">ui-components/style/icons</a></em>
 
-| 
+|
 | You can ensure that the colors of your custom ``LabIcon`` sync up to the colors of the current JupyterLab theme by adding appropriate ``class`` annotations to each colored element of your icon's svg.
-| 
+|
 | In other words, each element of your svg that a ``fill="..."`` or a ``stroke="..."`` property should also have a ``class="jp-icon<whatever>"`` property.
 
 Available icon classes
@@ -177,7 +180,7 @@ Available icon classes
 
    <em>Icon-related CSS classes are defined in <a href="https://github.com/jupyterlab/jupyterlab/blob/f0153e0258b32674c9aec106383ddf7b618cebab/packages/ui-components/style/icons.css">ui-components/style/icons.css</a></em>
 
-| 
+|
 | All colors shown are for the standard light/dark theme, mouse over for hex values.
 
 ``jp-iconX``: contrast to theme background
diff --git a/docs/source/extension/ui_helpers.rst b/docs/source/extension/ui_helpers.rst
index 5aafcdf9d182..ea0e99539baf 100644
--- a/docs/source/extension/ui_helpers.rst
+++ b/docs/source/extension/ui_helpers.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 User Interface Helpers
 ======================
 
@@ -327,7 +330,7 @@ notifications using:
 
 .. code:: typescript
 
-  Notification.dimiss(id?: string): void;
+  Notification.dismiss(id?: string): void;
 
 .. note::
 
diff --git a/docs/source/extension/virtualdom.create.tsx b/docs/source/extension/virtualdom.create.tsx
index 9718e7360e08..47ecb1156645 100644
--- a/docs/source/extension/virtualdom.create.tsx
+++ b/docs/source/extension/virtualdom.create.tsx
@@ -1,7 +1,12 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import * as React from 'react';
 
 import { Widget } from '@lumino/widgets';
-import { ReactWidget } from '@jupyterlab/apputils';
+import { ReactWidget } from '@jupyterlab/ui-components';
 
 function MyComponent() {
   return <div>My Widget</div>;
diff --git a/docs/source/extension/virtualdom.reactwidget.tsx b/docs/source/extension/virtualdom.reactwidget.tsx
index 568ca6fbd371..b2f954021908 100644
--- a/docs/source/extension/virtualdom.reactwidget.tsx
+++ b/docs/source/extension/virtualdom.reactwidget.tsx
@@ -1,7 +1,12 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import * as React from 'react';
 
 import { Widget } from '@lumino/widgets';
-import { ReactWidget } from '@jupyterlab/apputils';
+import { ReactWidget } from '@jupyterlab/ui-components';
 
 function MyComponent() {
   return <div>My Widget</div>;
diff --git a/docs/source/extension/virtualdom.rst b/docs/source/extension/virtualdom.rst
index f837e9c42cbc..f414a762c8b8 100644
--- a/docs/source/extension/virtualdom.rst
+++ b/docs/source/extension/virtualdom.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _react:
 
 React
@@ -5,7 +8,7 @@ React
 
 
 Many JupyterLab APIs require `Lumino`
-`Widgets <https://lumino.readthedocs.io/en/1.x/api/widgets/classes/widget.html>`__
+`Widgets <https://lumino.readthedocs.io/en/latest/api/modules/widgets.Widget.html>`__
 which have some additional features over native DOM elements, including:
 
 -  Resize events that propagate down the Widget hierarchy.
@@ -13,7 +16,7 @@ which have some additional features over native DOM elements, including:
 -  Both CSS-based and absolutely positioned layouts.
 
 We support wrapping React components to turn them into Lumino
-widgets using the ``ReactWidget`` class from ``@jupyterlab/apputils``:
+widgets using the ``ReactWidget`` class from ``@jupyterlab/ui-components``:
 
 .. literalinclude:: virtualdom.create.tsx
    :force:
@@ -32,9 +35,9 @@ override the ``render`` method to return a React element:
    :force:
 
 
-We use Lumino `Signals <https://lumino.readthedocs.io/en/1.x/api/signaling/interfaces/isignal.html>`__ to represent
+We use Lumino `Signals <https://lumino.readthedocs.io/en/latest/api/interfaces/signaling.ISignal.html>`__ to represent
 data that changes over time in JupyterLab.
-To have your React element change in response to a signal event, use the ``UseSignal`` component from ``@jupyterlab/apputils``,
+To have your React element change in response to a signal event, use the ``UseSignal`` component from ``@jupyterlab/ui-components``,
 which implements the `"render props" <https://reactjs.org/docs/render-props.html>`__:
 
 
diff --git a/docs/source/extension/virtualdom.usesignal.tsx b/docs/source/extension/virtualdom.usesignal.tsx
index c5b13de90f79..4a84d3c4ec7c 100644
--- a/docs/source/extension/virtualdom.usesignal.tsx
+++ b/docs/source/extension/virtualdom.usesignal.tsx
@@ -1,6 +1,11 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import * as React from 'react';
 
-import { ReactWidget, UseSignal } from '@jupyterlab/apputils';
+import { ReactWidget, UseSignal } from '@jupyterlab/ui-components';
 
 import { ISignal, Signal } from '@lumino/signaling';
 
diff --git a/docs/source/getting_started/faq.rst b/docs/source/getting_started/faq.rst
index e48f895f9264..cf957617d020 100644
--- a/docs/source/getting_started/faq.rst
+++ b/docs/source/getting_started/faq.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Frequently Asked Questions (FAQ)
 ================================
 
@@ -8,19 +11,50 @@ General
 -------
 
 -  :ref:`What is JupyterLab? <overview>`
--  :ref:`Is JupyterLab ready to use? <releases>`
--  :ref:`What will happen to the classic Jupyter Notebook? <releases>`
+-  :ref:`What will happen to the classic Jupyter Notebook? <classic>`
 -  `Where is the official online documentation for
    JupyterLab? <https://jupyterlab.readthedocs.io>`__
 -  :ref:`How can you report a bug or issue? <issue>`
 
+Usage
+-----
+
+Notebook
+^^^^^^^^
+
+My notebook is displaying cell outputs in an `iframe <https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe>`__. They are reset when scrolling back and forth.
+
+    Since JupyterLab v4, notebook rendering is optimized to display only the cells needed.
+    This has side effects with iframes.
+
+    The current workaround is to set the settings *Notebook* => *Windowing mode* to ``defer`` or ``none``.
+    It will negatively impact the performance of JupyterLab when opening long notebooks and/or lots of files.
+
+My notebook injects customized CSS that results in unexpected scrolling issues (e.g. it fails to scroll to the active cell).
+
+    Since JupyterLab v4, notebook rendering is optimized to display only the cells needed.
+    It does not support changing element CSS `margin <https://developer.mozilla.org/en-US/docs/Web/CSS/margin>`__
+    (in particular for cells).
+
+    The workaround is to prefer injecting customized `padding <https://developer.mozilla.org/en-US/docs/Web/CSS/padding>`__ rather than *margin*.
+    If you can not avoid changing the margins, you can set the settings *Notebook* => *Windowing mode* to ``defer`` or ``none``.
+    It will negatively impact the performance of JupyterLab when opening long notebooks and/or lots of files.
+
+Tips and Tricks
+---------------
+
+- How do I start JupyterLab with a clean workspace every time?
+
+Add ``'c.ServerApp.default_url = '/lab?reset'`` to your ``jupyter_server_config.py``.
+See `How to create a jupyter_server_config.py <https://jupyter-server.readthedocs.io/en/latest/users/configuration.html>`__ for more information.
+
 
 Development
 -----------
 
-  
+
 -  `How can you
-   contribute? <https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md>`__
+   contribute? <https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md>`__
 -  :ref:`How can you extend or customize JupyterLab? <user_extensions>`
 -  In the classic Notebook, `I could use custom Javascript outputted by a cell to programmatically
    control the Notebook <https://stackoverflow.com/a/32769976/907060>`__. Can I do the same thing in JupyterLab?
@@ -30,13 +64,5 @@ Development
    like trigger some behavior in response to the user executing some code in a notebook, you can output a custom
    mimetype (:ref:`rendermime`). We currently don't allow access to the JupyterLab
    API from the Javascript renderer, because this would tie the kernel and the notebook output to JupyterLab
-   and make it hard for other frontends to support it. 
+   and make it hard for other frontends to support it.
    If you have comments or suggestions on changes here, please comment on `this issue <https://github.com/jupyterlab/jupyterlab/issues/4623>`__.
-
-
-Tips and Tricks
----------------
-
-- How do I start JupyterLab with a clean workspace every time?
-
-Add ``'c.ServerApp.default_url = '/lab?reset'`` to your ``jupyter_server_config.py``. See `How to create a jupyter_server_config.py <https://jupyter-server.readthedocs.io/en/latest/users/configuration.html>`__ for more information.
diff --git a/docs/source/getting_started/installation.rst b/docs/source/getting_started/installation.rst
index a74a1322b494..293179f88fec 100644
--- a/docs/source/getting_started/installation.rst
+++ b/docs/source/getting_started/installation.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _installation:
 
 Installation
@@ -5,6 +8,13 @@ Installation
 
 JupyterLab can be installed using ``conda``, ``mamba``, ``pip``, ``pipenv`` or ``docker``.
 
+.. warning::
+    New versions of JupyterLab may break backwards compatibility with extensions and other
+    Jupyter customizations. As noted in :ref:`versioning_notes`, JupyterLab development and
+    release cycles follow semantic versioning, so we recommend planning your installation and
+    upgrade procedures to account for possible breaking changes that may disrupt your usage
+    of JupyterLab and any related tools that are critical to your workflows.
+
 conda
 -----
 
@@ -37,7 +47,7 @@ instead of ``pip``.
 
 If installing using ``pip install --user``, you must add the user-level
 ``bin`` directory to your ``PATH`` environment variable in order to launch
-``jupyter lab``. If you are using a Unix derivative (FreeBSD, GNU/Linux, 
+``jupyter lab``. If you are using a Unix derivative (FreeBSD, GNU/Linux,
 macOS), you can do this by running ``export PATH="$HOME/.local/bin:$PATH"``.
 
 pipenv
@@ -64,8 +74,8 @@ For example, in the directory where ``pipenv``'s ``Pipfile`` and ``Pipfile.lock`
 
     pipenv shell
     jupyter lab
-    
-Alternatively, you can run ``jupyter lab`` inside the virtualenv with 
+
+Alternatively, you can run ``jupyter lab`` inside the virtualenv with
 
 .. code:: bash
 
@@ -105,22 +115,6 @@ CSS Variables, and are not directly supported at this time.
 A tool like `postcss <https://postcss.org/>`__ can be used to convert the CSS files in the
 ``jupyterlab/build`` directory manually if desired.
 
-Usage with private NPM registry
--------------------------------
-
-To install some extensions, you will need access to an NPM packages registry. Some companies do not allow
-reaching directly public registry and have a private registry. To use it, you need to configure ``npm``
-**and** ``yarn`` to point to that registry (ask your corporate IT department for the correct URL):
-
-.. code::
-
-    npm config set registry https://registry.company.com/
-    yarn config set registry https://registry.company.com/
-    
-JupyterLab will pick up that registry automatically. You can check which registry URL is used by JupyterLab by running::
-
-    python -c "from jupyterlab.commands import AppOptions; print(AppOptions().registry)"
-
 Installation problems
 ---------------------
 
@@ -177,7 +171,7 @@ which means SSL communication will not be required for downloading Python librar
     pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org pandas
 
 
-Using the tips from above, you can handle many network problems 
+Using the tips from above, you can handle many network problems
 related to installing Python libraries.
 
 Many Jupyter extensions require having working ``npm`` and ``jlpm`` (alias for ``yarn``) commands,
diff --git a/docs/source/getting_started/issue.rst b/docs/source/getting_started/issue.rst
index 3d0e696a88aa..31a91b3efb88 100644
--- a/docs/source/getting_started/issue.rst
+++ b/docs/source/getting_started/issue.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _issue:
 
 Reporting an issue
diff --git a/docs/source/getting_started/overview.rst b/docs/source/getting_started/overview.rst
index 74d5f7f5df85..411eed615ff3 100644
--- a/docs/source/getting_started/overview.rst
+++ b/docs/source/getting_started/overview.rst
@@ -1,11 +1,15 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _overview:
 
-Overview
-========
+Get Started
+===========
 
-JupyterLab is a next-generation web-based user interface for Project Jupyter.
+`JupyterLab <https://jupyterlab.readthedocs.io/en/stable/>`_ is a next-generation web-based user interface for
+`Project Jupyter <https://docs.jupyter.org/en/latest/>`_.
 
-.. image:: ../user/images/interface_jupyterlab.png
+.. image:: ../images/interface-jupyterlab.png
    :align: center
    :class: jp-screenshot
    :alt: JupyterLab showing the file browser, notebook, and several other open files.
@@ -45,29 +49,36 @@ Vega, Vega-Lite, etc.) and can also display rich kernel output in these formats.
 See :ref:`file-and-output-formats` for more information.
 
 To navigate the user interface, JupyterLab offers :ref:`customizable keyboard
-shortcuts <shortcuts>` and the ability to use :ref:`key maps <editor-keymaps>`
-from vim, emacs, and Sublime Text in the text editor.
+shortcuts <shortcuts>`.
 
 JupyterLab :ref:`extensions <user_extensions>` can customize or enhance any part
 of JupyterLab, including new themes, file editors, and custom components.
 
-JupyterLab is served from the same `server
-<https://jupyter-notebook.readthedocs.io/en/stable/>`__ and uses the same
-`notebook document format <https://nbformat.readthedocs.io/en/latest/>`__ as the
-classic Jupyter Notebook.
+JupyterLab uses the same `notebook document format <https://nbformat.readthedocs.io/en/latest/>`__
+as the classic Jupyter Notebook.
+
+.. _classic:
+
+What will happen to the Classic Notebook?
+-----------------------------------------
 
-.. _releases:
+As JupyterLab 4 development continues, and Notebook 7 development follows,
+Notebook 7 will eventually replace the classic Jupyter Notebook.
+Throughout this transition, the same notebook document format will
+be supported by both the classic Notebook, Notebook 7 and JupyterLab.
+As of JupyterLab 4, the Notebook web application, will no longer
+be installed alongside JupyterLab as it is no longer a JupyterLab
+dependency. To find out more about the future of the classic
+Jupyter Notebook in the ecosystem, visit the
+`Jupyter Notebook 7 documentation <https://jupyter-notebook.readthedocs.io/en/latest/migrate_to_notebook7.html>`__.
 
-JupyterLab Releases
--------------------
 
-Since JupyterLab 0.32 (February 2018), the releases of JupyterLab are suitable
-for general daily use by both Jupyter novices and users experienced with the
-Classic Notebook interface. As of the 1.0 release (June 2019), it is
-additionally ready for extension writers who wish to further customize the
-JupyterLab experience for others. Please review the :ref:`changelog` for
-detailed descriptions of each release.
+.. toctree::
+   :maxdepth: 2
 
-The extension developer API is evolving, and we also are currently iterating on UI/UX improvements.
-We appreciate feedback on our `GitHub issues page <https://github.com/jupyterlab/jupyterlab/issues>`__
-as we evolve towards a stable extension development API.
+   installation
+   starting
+   issue
+   faq
+   changelog
+   accessibility
diff --git a/docs/source/getting_started/starting.rst b/docs/source/getting_started/starting.rst
index a710763acb42..e0916953ccc7 100644
--- a/docs/source/getting_started/starting.rst
+++ b/docs/source/getting_started/starting.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _starting:
 
 Starting JupyterLab
@@ -11,7 +14,7 @@ Start JupyterLab using:
 
 JupyterLab will open automatically in your browser.
 
-If your notebook files are not in the current directory, you can pass your working directory path as argument when starting JupyterLab. Avoid running it from your root volume (e.g. `C:\` on Windows or `/` on Linux) to limit the risk of modifying system files.
+If your notebook files are not in the current directory, you can pass your working directory path as argument when starting JupyterLab. Avoid running it from your root volume (e.g. ``C:\`` on Windows or ``/`` on Linux) to limit the risk of modifying system files.
 
 Example:
 
@@ -37,10 +40,6 @@ JupyterLab URLs are an advanced part of the user interface that allows for
 managing :ref:`workspaces <url-workspaces-ui>`. To learn more about URLs in
 Jupyterlab, visit :ref:`urls`.
 
-To open the classic Notebook from JupyterLab, select "Launch Classic Notebook"
-from the JupyterLab Help menu, or you can change the URL
-from ``/lab`` to ``/tree``.
-
 JupyterLab runs on top of Jupyter Server, so see the `security
 section <https://jupyter-server.readthedocs.io/en/latest/operators/security.html>`__
 of Jupyter Server's documentation for security-related information.
diff --git a/docs/source/images/jupyterlab.png b/docs/source/images/jupyterlab.png
deleted file mode 100644
index 8ed4fbaf3873..000000000000
Binary files a/docs/source/images/jupyterlab.png and /dev/null differ
diff --git a/docs/source/index.rst b/docs/source/index.rst
index fdddfa9a83db..5638f185c3fb 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. JupyterLab Tutorial documentation master file, created by
    sphinx-quickstart on Tue Jun 21 16:30:09 2016.
    You can adapt this file completely to your liking, but it should at least
@@ -7,88 +10,44 @@
 JupyterLab Documentation
 ########################
 
-JupyterLab is the next-generation web-based user interface for Project Jupyter. `Try it on Binder <https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/3818244?urlpath=lab/tree/demo>`__.  JupyterLab follows the Jupyter `Community Guides <https://jupyter.readthedocs.io/en/latest/community/content-community.html>`__.
+Welcome to the **JupyterLab** documentation site. JupyterLab is a highly
+extensible, feature-rich notebook authoring application and editing environment,
+and is a part of `Project Jupyter <https://docs.jupyter.org/en/latest/>`_, a
+large umbrella project centered around the goal of providing tools (and `standards <https://docs.jupyter.org/en/latest/#sub-project-documentation>`_) for interactive
+computing with `computational notebooks <https://docs.jupyter.org/en/latest/#what-is-a-notebook>`_.
+
+A `computational notebook <https://docs.jupyter.org/en/latest/#what-is-a-notebook>`_
+is a shareable document that combines computer code, plain language descriptions,
+data, rich visualizations like 3D models, charts, graphs and figures, and interactive
+controls. A notebook, along with an editor like JupyterLab, provides a fast interactive
+environment for prototyping and explaining code, exploring and visualizing data, and sharing
+ideas with others.
+
+JupyterLab is a sibling to other notebook authoring applications under
+the `Project Jupyter <https://docs.jupyter.org/en/latest/>`_ umbrella, like
+`Jupyter Notebook <https://jupyter-notebook.readthedocs.io/en/stable/>`_ and
+`Jupyter Desktop <https://github.com/jupyterlab/jupyterlab-desktop>`_. JupyterLab
+offers a more advanced, feature rich, customizable experience compared to
+Jupyter Notebook.
+
+`Try JupyterLab on Binder <https://mybinder.org/v2/gh/jupyterlab/jupyterlab-demo/3818244?urlpath=lab/tree/demo>`__.  JupyterLab follows the Jupyter `Community Guides <https://jupyter.readthedocs.io/en/latest/community/content-community.html>`__.
 
 .. image:: ./images/jupyterlab.png
    :align: center
-   :class: jp-screenshot
+   :class: jp-screenshot shadow
    :alt:
 
 .. only:: comment
 
    Alt text is intentionally left blank because the image content is decorative.
 
+See the sections below (and the top-level links above) for more information about using, extending, and contributing to JupyterLab.
 
 .. toctree::
-   :maxdepth: 1
-   :caption: Getting Started
+   :maxdepth: 2
 
    getting_started/overview
-   getting_started/installation
-   getting_started/starting
-   getting_started/issue
-   getting_started/faq
-   getting_started/changelog
-   getting_started/accessibility
-
-.. toctree::
-   :maxdepth: 1
-   :caption: User Guide
-
-   user/announcements
-   user/interface
-   user/urls
-   user/files
-   user/file_editor
-   user/notebook
-   user/code_console
-   user/terminal
-   user/running
-   user/commands
-   user/documents_kernels
-   user/file_formats
-   user/debugger
-   user/toc
-   user/extensions
-   user/export
-   user/language
-   user/rtc
-   user/ui_customization
-   user/directories
-   user/jupyterhub
-   user/binder
-
-.. toctree::
-   :maxdepth: 1
-   :caption: Extension Developer Guide
-
+   user/index
    extension/extension_dev
-   extension/extension_points
-   extension/ui_components
-   extension/documents
-   extension/notebook
-   extension/virtualdom
-   extension/ui_helpers
-   extension/internationalization
-   extension/identity
-   extension/extension_tutorial
-   extension/extension_migration
-
-.. toctree::
-   :maxdepth: 1
-   :caption: JupyterLab Developer Guide
-
    developer/contributing
-   developer/repo
-   developer/components
-   developer/patterns
-   developer/internationalization
-   developer/css
-   developer/api
-
-
-.. toctree::
-   :maxdepth: 1
-   :caption: Privacy Policies
-
    privacy_policies
diff --git a/docs/source/privacy_policies.rst b/docs/source/privacy_policies.rst
index 287579809cfc..144f8c074b80 100644
--- a/docs/source/privacy_policies.rst
+++ b/docs/source/privacy_policies.rst
@@ -1,7 +1,10 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 Privacy policies
 ================
 
-Last modified: December 14, 2022
+Last modified: December 15, 2022
 
 Introduction
 ------------
@@ -47,11 +50,10 @@ Users can also disable the plugin by executing:
 Extension manager plugin
 ^^^^^^^^^^^^^^^^^^^^^^^^
 
-The extensions manager plugin fetches extension packages metadata on npm public registry
-(https://registry.npmjs.org/-/v1/) and on a Content Delivery Network (https://unpkg.com)
-and package author thumbnails on GitHub (https://github.com).
+The extensions manager plugin fetches Python packages' metadata from PyPI.org
+(https://pypi.org) and package author thumbnails from GitHub (https://github.com).
 
-The plugin will fetch this information only if the user clicks on the *Enable*
+The plugin will fetch this information only if the user clicks on the *Yes*
 button in the extensions manager side panel.
 That choice is stored as a user preference in *Extension Manager* ->
 *Disclaimed Status*. The user can change their preference later.
@@ -73,15 +75,6 @@ That data is not accessible to and not readable by the JupyterLab development te
 
 GitHub's privacy policy can be found at https://docs.github.com/en/site-policy/privacy-policies/github-privacy-statement .
 
-npm
-^^^
-
-The service providing NPM public registry (https://registry.npmjs.org/-/v1/) collects
-data about how you use npm registry.
-That data is not accessible to and not readable for the JupyterLab development team.
-
-The privacy policy of the NPM public registry can be found at https://docs.npmjs.com/policies/privacy.
-
 PyPI.org
 ^^^^^^^^
 
@@ -90,17 +83,6 @@ That data is not accessible to and not readable by the JupyterLab development te
 
 PyPI's privacy policy can be found at https://www.python.org/privacy/.
 
-unpkg.com
-^^^^^^^^^
-
-The service providing NPM packages (https://unpkg.com/) is not providing information about data
-collection.
-If data are collected, they are not accessible to and not readable for the JupyterLab development team.
-
-The project is open source and the origin server is deployed on `Fly.io <https://fly.io/>`_ (see `Fly.io privacy policy <https://fly.io/legal/privacy-policy/>`_)
-and the content delivery network is powered by `Cloudflare <https://www.cloudflare.com/>`_ (see `Cloudflare privacy policy <https://www.cloudflare.com/privacypolicy/>`_).
-
-
 Changes to policy
 -----------------
 
diff --git a/docs/source/user/announcements.rst b/docs/source/user/announcements.rst
index 8b030872d93d..68c56d55c884 100644
--- a/docs/source/user/announcements.rst
+++ b/docs/source/user/announcements.rst
@@ -4,13 +4,7 @@
 Announcements
 =============
 
-When starting JupyterLab, you will see a pop-up in the bottom right corner
-asking for your consent to get Jupyter news (this is an opt-in feature; disabled by default).
-
-If you agree, you will be notified by time to time about important news
-about JupyterLab and the Jupyter ecosystem. You will also be notified if a
-newer version is available.
-
+Your consent is required to get Jupyter news (this is an opt-in feature).
 Once you have answered the request, you can change your decision in the *Notification*
 settings.
 
@@ -49,23 +43,4 @@ using the command line option ``--LabApp.news_url="<URL_TO_FEED_XML_FILE>"``.
 Binder
 ------
 
-To deactivate the announcements on Binder, you can change the default settings.
-To do that, you will need to add those two files in your Binder configuration:
-
-.. code-block:: json
-    :caption: overrides.json
-
-    {
-      "@jupyterlab/apputils-extension:notification": {
-        "fetchNews": "false"
-      }
-    }
-
-.. code-block:: sh
-    :caption: postBuild
-
-    #!/usr/bin/env bash
-    set -eux
-
-    mkdir -p ${NB_PYTHON_PREFIX}/share/jupyter/lab/settings
-    cp overrides.json ${NB_PYTHON_PREFIX}/share/jupyter/lab/settings
+You will find how to deactivate those features on Binder at :ref:`binder`.
diff --git a/docs/source/user/binder.rst b/docs/source/user/binder.rst
index 7ed5e1d68788..ec95144a6ff5 100644
--- a/docs/source/user/binder.rst
+++ b/docs/source/user/binder.rst
@@ -1,17 +1,41 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _binder:
 
 JupyterLab on Binder
 ====================
 
-JupyterLab works out of the box with Binder, and can even run side by side
-with the classic Notebook.
+Customize the layout
+--------------------
+
+A specific layout of JupyterLab can be saved as workspace to be restored later or
+to be shared with others.
+
+To specify a workspace on Binder, you first need to export the layout you want to
+use. For that launch JupyterLab and arrange the application in the layout you prefer.
+Then you can export it through the menu ``File -> Save Current Workspace As…``.
+
+Now you need to copy that file in the Binder configuration folder and import it in
+the ``postBuild`` script. Assuming the binder workspace file is stored at ``binder/workspace.jupyterlab-workspace``:
+
+.. code-block:: sh
+    :caption: postBuild
+
+    #!/usr/bin/env bash
+    set -eux
+
+    conda run -n notebook jupyter lab workspaces import --name default binder/workspace.jupyterlab-workspace
 
-Override default settings
-^^^^^^^^^^^^^^^^^^^^^^^^^
+Customize user settings
+-----------------------
 
-It can be useful to change the default settings of JupyterLab for example to
-deactivate the announcements feature.
-To do that, you will need to add those two files in your Binder configuration:
+To customize the user settings on a Binder instance, you can define a ``overrides.json``
+that will contain a dictionary whose primary keys are the plugin ids and the values
+are the new settings.
+
+For example to deactivate the announcements on Binder, you will have to override
+the following setting:
 
 .. code-block:: json
     :caption: overrides.json
@@ -22,6 +46,8 @@ To do that, you will need to add those two files in your Binder configuration:
       }
     }
 
+Then you will have to copy that file in a special folder:
+
 .. code-block:: sh
     :caption: postBuild
 
@@ -30,26 +56,3 @@ To do that, you will need to add those two files in your Binder configuration:
 
     mkdir -p ${NB_PYTHON_PREFIX}/share/jupyter/lab/settings
     cp overrides.json ${NB_PYTHON_PREFIX}/share/jupyter/lab/settings
-
-Jupyter Server v2 or above
-^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-Starting with JupyterLab 3.5.0, you can use either Jupyter Server v1 or v2. That
-dependency is maintained independently of JupyterLab as another project within
-the Jupyter organization. The source code and issues tracker can be found on `GitHub <https://github.com/jupyter-server/jupyter_server/>`__.
-
-Unfortunately by default, Binder does not support Jupyter Server v2 or above. If
-you need that specific version (e.g. it is needed for real time collaboration 
-starting with JupyterLab 3.6.0), you will need to add the following file in your Binder
-configuration to override the default application start up:
-
-.. code-block:: sh
-    :caption: start
-
-    #!/bin/bash
-
-    set -e
-
-    echo $@
-
-    exec jupyter-lab "${@:4}"
diff --git a/docs/source/user/code_console.rst b/docs/source/user/code_console.rst
index b55608f5ddaf..0ea844caf7bc 100644
--- a/docs/source/user/code_console.rst
+++ b/docs/source/user/code_console.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _code-console:
 
 Code Consoles
diff --git a/docs/source/user/commands.rst b/docs/source/user/commands.rst
index 1e3a71f99b3c..1df27e408a15 100644
--- a/docs/source/user/commands.rst
+++ b/docs/source/user/commands.rst
@@ -1,14 +1,41 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _commands:
 
+Commands
+========
+
+Commands are the entry points for triggering actions for the user interface. They are
+linked to menu entries, keyboard shortcuts, the launcher and the command palette.
+
+A command has an unique id that is used for referencing it or executing it. It could
+also require input arguments. Those arguments are maybe different in the command palette
+and the keyboard shortcuts for example. That can explain varying behavior depending on the
+source of a command trigger.
+
+Commands in Markdown Files
+==========================
+
+JupyterLab supports using commands in Markdown files with the following syntax:
+
+.. code-block:: markdown
+
+   `<button data-commandLinker-command="help:about" href="#">TEST</button>`
+
+The value of ``data-commandLinker-command`` must be a valid command identifier (see list below).
+
+This allows you to embed buttons or other elements with custom commands in your Markdown documents.
+
 Command Palette
-===============
+^^^^^^^^^^^^^^^
 
 All user actions in JupyterLab are processed through a centralized command
 system. These commands are shared and used throughout JupyterLab (menu bar,
 context menus, keyboard shortcuts, etc.). The command palette provides a
 keyboard-driven way to search for and run JupyterLab commands:
 
-.. image:: images/command_palette.png
+.. image:: ../images/command-palette.png
    :align: center
    :class: jp-screenshot
 
@@ -18,3 +45,18 @@ The command palette can be accessed from the View menu or using the keyboard sho
 ``Command/Ctrl Shift C``.
 
 The command palette can be displayed in the sidebar by adding ``'modal': false`` to the Settings.
+
+.. _commands-list:
+
+Commands List
+^^^^^^^^^^^^^
+
+The table below display the list of commands and the associated keyboard shortcuts. The
+unique identifier is useful if you want to customize the menus, the toolbars or the keyboard shortcuts.
+
+.. note::
+
+    On Mac OS, the `Ctrl` key should be replaced by `Cmd`.
+
+.. include:: commands_list.md
+   :parser: myst_parser.sphinx_
diff --git a/docs/source/user/debugger.rst b/docs/source/user/debugger.rst
index 121bcb578aca..d77f518962ce 100644
--- a/docs/source/user/debugger.rst
+++ b/docs/source/user/debugger.rst
@@ -1,11 +1,14 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _debugger:
 
 Debugger
 ========
 
-JupyterLab 3.0 now ships with a Debugger front-end by default.
+JupyterLab ships with a Debugger front-end by default.
 
-This means that notebooks, code consoles and files can now be debugged from JupyterLab directly!
+This means that notebooks, code consoles and files can be debugged from JupyterLab directly!
 
 Requirements
 ------------
@@ -17,6 +20,7 @@ Here is a list of kernels that are known to be supporting the Jupyter Debug Prot
 - `xeus-python <https://github.com/jupyter-xeus/xeus-python>`_: Jupyter kernel for the Python programming language
 - `xeus-robot <https://github.com/jupyter-xeus/xeus-robot>`_: Jupyter kernel for Robot Framework
 - `ipykernel <https://github.com/ipython/ipykernel>`_:  IPython Kernel for Jupyter
+- `common-lisp-jupyter <https://github.com/yitzchak/common-lisp-jupyter>`_:  Common Lisp Kernel for Jupyter
 
 
 Other Jupyter Kernels can also support debugging and be compatible with the JupyterLab debugger
@@ -34,17 +38,87 @@ Here is an example of how to install ``ipykernel`` and ``xeus-python`` in a new
 Usage
 -----
 
-For Python, both ``ipykernel`` (6.0+) and ``xeus-python`` support debugging.
-
-Enable the debugger, set breakpoints and step into the code:
+Here is a screencast to enable the debugger and set up breakpoints. The various steps are described more in depth below.
 
 .. image:: ./images/debugger/step.gif
    :alt: A GIF showing how to enable the debugger within the kernel.
 
-Tutorial Notebook
------------------
+Use a kernel supporting debugger
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+First, you will need to check that the kernel supports debugging. If so, the *bug* icon in the upper-right corner of the
+notebook will be enabled.
+
+.. image:: ../images/debugger-kernel.png
+
+Debug code in notebook
+^^^^^^^^^^^^^^^^^^^^^^
+
+Now let's enable the debugger for this notebook. The debugger can be enabled by toggling the *bug* button on in the upper-right corner of the notebook:
+
+.. image:: ../images/debugger-activate.png
+
+Once debugging has been enabled, we can set breakpoints and step into the code.
+
+Let's define a function that adds two elements:
+
+.. code:: python
+
+   def add(a, b):
+      res = a + b
+      return res
+
+We can call the function and print the result:
+
+.. code:: python
+
+   result = add(1, 2)
+   print(result)
+
+Now let's go back to the first code cell and click on the gutter on line number 2 to add a breakpoint:
+
+.. image:: ../images/debugger-breakpoint.png
+
+Then let's execute the second code cell by clicking on the _Run_ button:
+
+.. image:: ../images/debugger-run.png
+
+The execution stops where the breakpoint is set:
+
+.. image:: ../images/debugger-stop-on-breakpoint.png
+
+Explore the code state
+^^^^^^^^^^^^^^^^^^^^^^
+
+Exploring the code state is done with the debugger sidebar. It shows a variable explorer,
+a list of breakpoints, a source preview and the possibility to navigate the call stack.
+
+.. image:: ../images/debugger-sidebar.png
+
+**Variables**
+
+Variables can be explored using a tree view and a table view:
+
+.. image:: ../images/debugger-variables.png
+
+**Call stack**
+
+You can step into the code, and continue the execution using the debug actions:
+
+.. image:: ../images/debugger-callstack.png
+
+**Breakpoints**
+
+New breakpoints can be added and removed while the execution is stopped, and
+they will be shown in the list of breakpoints:
+
+.. image:: ../images/debugger-breakpoints.png
+
+**Source**
+
+The source panel shows the source of the current file being debugged:
 
-There is also a tutorial notebook to try the debugger that is available on the `jupyter-ide-demo repo <https://github.com/blink1073/jupyter-ide-demo>`_.
-and can be run on Binder `here <https://mybinder.org/v2/gh/blink1073/jupyter-ide-demo/stable?urlpath=/lab/tree/index.ipynb>`_.
+.. image:: ../images/debugger-source.png
 
-.. image:: ./images/debugger/tutorial-notebook.png
+If the source corresponds to a cell that has been deleted, clicking on the
+*Open in Main Area* button will open a read-only view of the source.
diff --git a/docs/source/user/directories.rst b/docs/source/user/directories.rst
index da4bd057e55a..f03cf78b67fb 100644
--- a/docs/source/user/directories.rst
+++ b/docs/source/user/directories.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 
 Advanced Usage
 ==============
@@ -38,16 +41,7 @@ shipped with the Python package, you can launch as
 
 The build process uses a specific ``yarn`` version with a default working
 combination of npm packages stored in a ``yarn.lock`` file shipped with
-JupyterLab. Those package source urls point to the default yarn registry.
-However, if you defined your own yarn registry in the yarn configuration, the
-default yarn registry will be replaced by your custom registry. If you then
-switch back to the default yarn registry, you will need to clean your
-``staging`` folder before building:
-
-.. code:: bash
-
-    jupyter lab clean
-    jupyter lab build
+JupyterLab.
 
 
 Disabling Rebuild Checks
@@ -81,7 +75,7 @@ LabConfig Directories
 ---------------------
 For each config path ``<jupyter_config_path>`` listed in ``jupyter --paths``, the ``<jupyter_config_path>/labconfig`` directory contains configuration data. This configuration data from all of these directories is combined into a single configuration, with priority order given by ``jupyter --paths``.
 
-The primary file used by JupyterLab is ``page_config.json``.  
+The primary file used by JupyterLab is ``page_config.json``.
 The ``page_config.json`` data is used to provide configuration data to the
 application environment.
 
@@ -322,4 +316,3 @@ environments. The location can be modified using the
 
 These files can be imported and exported to create default "profiles", using
 the :ref:`workspace command line tool <url-workspaces-cli>`.
-
diff --git a/docs/source/user/documents_kernels.rst b/docs/source/user/documents_kernels.rst
index dedce30e9688..2fd90f911ff0 100644
--- a/docs/source/user/documents_kernels.rst
+++ b/docs/source/user/documents_kernels.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _kernel-backed-documents:
 
 Documents and Kernels
diff --git a/docs/source/user/export.rst b/docs/source/user/export.rst
index 69363404b137..4299d33d2435 100644
--- a/docs/source/user/export.rst
+++ b/docs/source/user/export.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _user_export:
 
 Exporting Notebooks
@@ -17,7 +20,7 @@ into other file formats such as:
 
 To access these options, while a notebook is open, browse the File menu:
 
-.. image:: images/exporting_menu.png
+.. image:: ../images/exporting-menu.png
    :align: center
    :class: jp-screenshot
 
@@ -38,7 +41,7 @@ slides, follow these steps:
 2. Select Property inspector in the :ref:`right sidebar <right-sidebar>`.
 3. Select the slide type (Slide, Subslide, Fragment, Skip, Notes).
 
-.. image:: images/exporting_slide_type.png
+.. image:: ../images/exporting-slide-type.png
    :align: center
    :class: jp-screenshot
 
diff --git a/docs/source/user/extensions.rst b/docs/source/user/extensions.rst
index d5a72025a837..a66b2f580136 100644
--- a/docs/source/user/extensions.rst
+++ b/docs/source/user/extensions.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _user_extensions:
 
 Extensions
@@ -23,97 +26,62 @@ documentation <developer_extensions>`.
 Installing Extensions
 ---------------------
 
-A JupyterLab extension contains JavaScript that is installed into Jupyterlab and run in the browser. An extension contains one or more plugins that extend JupyterLab. There are two types of JupyterLab extensions: a *source extension* (which requires a rebuild of JupyterLab when installed), and a *prebuilt extension* (which does not require a rebuild of JupyterLab). Rebuilding JupyterLab requires Node.js to be :ref:`installed <installing_nodejs>`.
-
-JupyterLab extensions can be installed in a number of ways, including:
-
-- Python ``pip`` or ``conda`` packages can include either a source extension or a prebuilt extension. These packages may also include a server-side component necessary for the extension to function.
-- The Extension Manager in JupyterLab and the ``jupyter labextension install`` command can install source extension packages from `npm <https://www.npmjs.com/search?q=keywords:jupyterlab-extension>`__. Installing a source extension requires Node.js and a JupyterLab rebuild to activate. See :ref:`installing_nodejs` and :ref:`install_command`.
-
-.. _installing_nodejs:
-
-Installing Node.js
-^^^^^^^^^^^^^^^^^^
-
-Source extensions require `Node.js <https://nodejs.org/>`__ to rebuild
-JupyterLab and activate the extension. If you use ``conda`` with
-``conda-forge`` packages, you can get Node.js with:
-
-.. code:: bash
-
-    conda install -c conda-forge nodejs
+A JupyterLab extension contains JavaScript that is installed into Jupyterlab and
+run in the browser. An extension contains one or more plugins that extend JupyterLab.
+The preferred JupyterLab extension type is a *prebuilt extension* because it does not
+require rebuilding JupyterLab JavaScript files.
+
+Most JupyterLab extensions can be installed using Python :ref:`pip <user_trove_classifiers>`
+or ``conda`` packages. These packages may also include a server-side component
+necessary for the extension to function.
+
+.. _user_trove_classifiers:
+
+Browsing Extensions on PyPI
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+The Python Package Index (PyPI) is a repository of software for the Python
+programming language, and the default source of packages for the ``pip`` package
+manager. While a `simple text search <https://pypi.org/search/?q=jupyterlab&o=>`__
+will reveal hundreds of packages, a number of
+`trove classifiers <https://pypi.org/classifiers>`__ are available for packages
+to self-describe the features and compatibility provided:
+
+- `Framework :: Jupyter :: JupyterLab <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab>`__
+- `Framework :: Jupyter :: JupyterLab :: 1 <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+1>`__
+- `Framework :: Jupyter :: JupyterLab :: 2 <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+2>`__
+- `Framework :: Jupyter :: JupyterLab :: 3 <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+3>`__
+- `Framework :: Jupyter :: JupyterLab :: 4 <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+4>`__
+- `Framework :: Jupyter :: JupyterLab :: Extensions <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions>`__
+- `Framework :: Jupyter :: JupyterLab :: Extensions :: Mime Renderers <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions+%3A%3A+Mime+Renderers>`__
+- `Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions+%3A%3A+Prebuilt>`__
+- `Framework :: Jupyter :: JupyterLab :: Extensions :: Themes <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions+%3A%3A+Themes>`__
 
-If you use ``conda`` with default Anaconda packages (i.e., you don't normally
-use ``conda-forge``), you should install Node.js from the Anaconda default
-channel with ``conda install nodejs`` instead.
+.. note::
 
-You may also be able to get Node.js from your system package manager, or you
-can download Node.js from the `Node.js website <https://nodejs.org/>`__
-and install it directly.
+   These classifiers were accepted in early August 2021, and it will take some
+   time for them to be broadly adopted.
 
+   *You can help!* The proposal of classifiers to a packages's ``setup.py``,
+   ``setup.cfg``, or ``pyproject.toml`` can make a *great* first open source
+   :ref:`contribution <dev_trove_classifiers>`, as such contributions are:
 
-.. _install_command:
+   - easy for *you*, often possible directly through a project's source code
+     website, e.g. GitHub or GitLab,
+   - easy for maintainers to review and merge, and
+   - can have a positive impact on the discoverability of the package
 
 Managing Extensions with ``jupyter labextension``
 -------------------------------------------------
 
-The ``jupyter labextension`` command enables you to install or uninstall
-source extensions from `npm <https://www.npmjs.com/search?q=keywords:jupyterlab-extension>`__, list all installed extensions, or disable any extension. See the help with ``jupyter labextension --help``.
-
-Installing and Uninstalling Source Extensions
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-You can install source extensions from `npm
-<https://www.npmjs.com/search?q=keywords:jupyterlab-extension>`__ with:
-
-.. code:: bash
-
-    jupyter labextension install my-extension my-other-extension
-
-Use the ``my-extension@version`` syntax to install a specific version
-of an extension, for example:
-
-.. code:: bash
-
-    jupyter labextension install my-extension@1.2.3
-
-You can also install a source extension that is not uploaded to npm, i.e.,
-``my-extension`` can be a local directory containing the extension, a
-gzipped tarball, or a URL to a gzipped tarball.
-
-.. note::
-    Installing a source extension will require :ref:`installing
-    Node.js <installing_nodejs>` and require a rebuild of JupyterLab.
-
-Uninstall source extensions using the command:
-
-.. code:: bash
-
-    jupyter labextension uninstall my-extension my-other-extension
-
-If you are installing/uninstalling several extensions in several stages,
-you may want to defer rebuilding JupyterLab by including the flag
-``--no-build`` in the install/uninstall step. Once you are ready to
-rebuild, you can run the command:
-
-.. code:: bash
-
-    jupyter lab build
-
-.. note::
-   If you are rebuilding JupyterLab on Windows, you may encounter a
-   ``FileNotFoundError`` due to the default path length on Windows.  Node
-   modules are stored in a deeply nested directory structure, so paths can get
-   quite long. If you have administrative access and are on Windows 8 or 10,
-   you can update the registry setting using these instructions:
-   https://stackoverflow.com/a/37528731.
-
+The ``jupyter labextension`` command enables you to list all installed extensions,
+or disable any extension. It also bring helper commands for developers. See the
+help with ``jupyter labextension --help``.
 
 Listing installed extensions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-List all installed extensions, including those installed with ``pip`` or
-``conda``, with:
+List all installed extensions with:
 
 .. code:: bash
 
@@ -130,9 +98,9 @@ List all installed extensions, including those installed with ``pip`` or
 Enabling and Disabling Extensions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-Disabling an extension prevents the all plugins in the extension from running in JupyterLab
-(though the code is still loaded). You can disable specific JupyterLab
-extensions (including core extensions) without rebuilding JupyterLab with:
+Disabling an extension prevents all plugins in that extension from running in
+JupyterLab (though the code is still loaded). You can disable specific JupyterLab
+extensions (including core extensions) too:
 
 .. code:: bash
 
@@ -144,19 +112,29 @@ You can enable a disabled extension with:
 
     jupyter labextension enable my-extension
 
-Installed extensions are enabled by default unless there is configuration explicitly disabling them.
+Installed extensions are enabled by default unless there is configuration
+explicitly disabling them.
 Extensions can be disabled or enabled using the command line.
-Extensions or individual plugins within an extension can be disabled by another extension.
+Extensions or individual plugins within an extension can be disabled by another
+extension.
 
-The priority order for determining whether an extension is enabled or disabled is as follows:
+The priority order for determining whether an extension is enabled or disabled
+is as follows:
 
-- Presence of ``<jupyter_config_path>/labconfig/page_config.json`` file(s) with a ``disabledExtensions`` key that is a object with package names as keys and boolean values.
-- (deprecated) Presence of ``disabledExtensions`` key in ``<lab_app_dir>/settings/page_config.json``.   This value is a list of extensions to disable, but is deprecated in favor of the layered configuration approach in the `labconfig` location(s).
-- Presence of ``disabledExtensions`` key in another JupyterLab extension's metadata that disables a given extension.  The key is ignored if that extension itself is disabled.
+- Presence of ``<jupyter_config_path>/labconfig/page_config.json`` file(s) with
+  a ``disabledExtensions`` key that is a object with package names as keys and boolean values.
+- (deprecated) Presence of ``disabledExtensions`` key in ``<lab_app_dir>/settings/page_config.json``.
+  This value is a list of extensions to disable, but is deprecated in favor of the
+  layered configuration approach in the `labconfig` location(s).
+- Presence of ``disabledExtensions`` key in another JupyterLab extension's metadata
+  that disables a given extension.  The key is ignored if that extension itself is
+  disabled.
 
-When using the command line, you can target the ``--level`` of the config: ``user``, ``system``, or ``sys-prefix`` (default).
+When using the command line, you can target the ``--level`` of the config:
+``user``, ``system``, or ``sys-prefix`` (default).
 
-An example ``<jupyter_config_path>/labconfig/pageconfig.json`` could look as follows:
+An example ``<jupyter_config_path>/labconfig/page_config.json`` could look as
+follows:
 
 .. code:: json
 
@@ -166,21 +144,36 @@ An example ``<jupyter_config_path>/labconfig/pageconfig.json`` could look as fol
       }
    }
 
-See :ref:`documentation on LabConfig directories <labconfig_directories>` for more information.
+See :ref:`documentation on LabConfig directories <labconfig_directories>` for
+more information.
 
 Managing Extensions Using the Extension Manager
 -----------------------------------------------
 
 .. _extension_manager:
 
-You can use the Extension Manager in JupyterLab to manage extensions that are
-distributed as single JavaScript packages on npm.
+You can use the Extension Manager in JupyterLab to manage extensions. That feature
+may have been disabled by your system administrator for security reasons.
+
+.. note::
+
+   Since JupyterLab v4, the default manager uses PyPI.org as source for the available
+   extensions and ``pip`` to install them.
+
+   An extension will be listed if the Python package has the classifier:
+   `Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt <https://pypi.org/search/?c=Framework+%3A%3A+Jupyter+%3A%3A+JupyterLab+%3A%3A+Extensions+%3A%3A+Prebuilt>`__
+   Moreover it is advised for extension author to provide the ``install.json`` file
+   to specify the exact Python package name.
+
+.. warning::
+   There is no check to ensure the extension is compatible with the current JupyterLab
+   version.
 
 The Extension Manager is in the :ref:`left sidebar <left-sidebar>`.
 
-.. figure:: images/extension_manager_default.png
+.. figure:: ../images/extensions-default.png
    :align: center
-   :class: jp-screenshotls
+   :class: jp-screenshot
 
    **Figure:** The default view has three components: a search bar, an "Installed"
    section, and a "Discover" section.
@@ -198,7 +191,7 @@ Disclaimer
 
 By default, the disclaimer is not acknowledged.
 
-.. figure:: images/listings/disclaimer_unchecked.png
+.. figure:: ../images/extensions-disabled.png
    :align: center
    :class: jp-screenshot
 
@@ -208,56 +201,40 @@ By default, the disclaimer is not acknowledged.
 As the disclaimer is not acknowledged, you can search for an extension,
 but can not install it (no install button is available).
 
-.. figure:: images/listings/disclaimer_unchecked_noinstall.png
-   :align: center
-   :class: jp-screenshot
-
-   **Figure:** With Disclaimer unchecked, you can not install an extension
-
 
 To install an extension, you first have to explicitly acknowledge the disclaimer.
 Once done, this will remain across sessions and the user does not have to
 check it again.
 
-.. figure:: images/listings/disclaimer_checked.png
+.. figure:: ../images/extensions-enabled.png
    :align: center
    :class: jp-screenshot
 
    **Figure:** Disclaimer checked
 
-For ease of use, you can hide the disclaimer so it takes less space on
+For ease of use, you can collapse the disclaimer so it takes less space on
 your screen.
 
-.. figure:: images/listings/disclaimer_hidden.png
-   :align: center
-   :class: jp-screenshot
-
-   **Figure:** Disclaimer is hidden
-
 
 Finding Extensions
 ^^^^^^^^^^^^^^^^^^
 
 You can use the extension manager to find extensions for JupyterLab. To discovery
 freely among the currently available extensions, expand the "Discovery" section.
-This triggers a search for all JupyterLab extensions on the NPM registry, and
-the results are listed according to the `registry's sort order
-<https://docs.npmjs.com/searching-for-and-choosing-packages-to-download#package-search-rank-criteria>`__.
-An exception to this sort order is that extensions released by the Jupyter
-organization are always placed first. These extensions are distinguished by
-a small Jupyter icon next to their name.
+This triggers a search for all JupyterLab extensions on the PyPI.org registry, and
+the results are listed alphabetically.
 
 
-.. image:: images/extension_manager_discover.png
+.. figure:: ../images/extensions-default.png
    :align: center
    :class: jp-screenshot
    :alt: The discovery extension listing.
 
 
 Alternatively, you can limit your discovery by using the search bar. This
-performs a free-text search of JupyterLab extensions on the NPM registry.
+performs a free-text search of JupyterLab extensions on the PyPI.org registry.
 
-.. image:: images/extension_manager_search.png
+.. image:: ../images/extensions-search.png
    :align: center
    :class: jp-screenshot
    :alt: An example search result in the discovery extension listing.
@@ -266,7 +243,7 @@ performs a free-text search of JupyterLab extensions on the NPM registry.
 Installing an Extension
 ^^^^^^^^^^^^^^^^^^^^^^^
 
-Once you have found a source extension that you think is interesting, install
+Once you have found an extension that you think is interesting, install
 it by clicking the "Install" button of the extension list entry.
 
 
@@ -277,63 +254,49 @@ it by clicking the "Install" button of the extension list entry.
     avoid installing extensions you do not trust, and watch out for
     any extensions trying to masquerade as a trusted extension.
 
-
-A short while after starting the install of an extension, a drop-down should
-appear under the search bar indicating that the extension has been
-downloaded, but that a rebuild is needed to complete the installation.
-
-
-.. image:: images/extension_manager_rebuild.png
-   :align: center
-   :class: jp-screenshot
-   :alt: Screenshot showing the rebuild indicator
-
-
-If you want to install/uninstall other extensions as well, you can ignore
-the rebuild notice until you have made all the changes you want. Once satisfied,
-click the 'Rebuild' button to start a rebuild in the background.
-Once the rebuild completes, a dialog will pop up, indicating that a reload of
-the page is needed in order to load the latest build into the browser.
-
-If you ignore the rebuild notice by mistake, simply refresh your browser
-window to trigger a new rebuild check.
+The newly installed extension may require JupyterLab to be restarted.
 
 
 Managing Installed Extensions
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 When there are some installed extensions, they will be shown in the "Installed"
-section. These can then be uninstalled (if they are source extensions) or disabled. Disabling an extension will
+section. These can then be uninstalled or disabled. Disabling an extension will
 prevent it from being activated, but without rebuilding the application.
 
 
-Companion packages
-^^^^^^^^^^^^^^^^^^
+Configuring the Extension Manager
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-During installation of an extension, JupyterLab will inspect the package
-metadata for any
-:ref:`instructions on companion packages <ext-author-companion-packages>`.
-Companion packages can be:
+By default there are two extension managers provided by JupyterLab:
 
-   - Notebook server extensions (or any other packages that need to be
-     installed on the Notebook server).
-   - Kernel packages. An example of companion packages for the
-     kernel are Jupyter Widget packages, like the `ipywidgets <https://ipywidgets.readthedocs.io/en/stable>`__
-     Python package for the
-     `@jupyter-widgets/jupyterlab-manager package <https://www.npmjs.com/package/@jupyter-widgets/jupyterlab-manager>`__.
+- ``pypi``: [default] Allow to un-/install extensions from PyPI.org
+- ``readonly``: Display installed extensions (with the ability to dis-/en-able them)
 
-If JupyterLab finds instructions for companion packages, it will present
-a dialog to notify you about these. These are informational only, and it
-will be up to you to take these into account or not.
+You can specify the manager with the command line option ``--LabApp.extension_manager``;
+e.g. to use the *read-only* manager:
 
+.. code:: sh
+
+    jupyter lab --LabApp.extension_manager=readonly
+
+PyPI Manager settings
+"""""""""""""""""""""
+
+The ``pypi`` manager have specific options that can be set using command line options:
+
+- ``--PyPIExtensionManager.base_url``: PyPI warehouse base URL - default to https://pypi.org/pypi.
+- ``--PyPIExtensionManager.rpc_request_throttling``: Throttling time between requests to the PyPI XML-RPC API in seconds - default 1.
+- ``--PyPIExtensionManager.cache_timeout``: PyPI extensions list cache timeout in seconds - default 300.
+- ``--PyPIExtensionManager.package_metadata_cache_size``: The cache size for package metadata - default 1500.
 
 .. _extension_listings:
 
 Listings
 ^^^^^^^^
 
-When searching source extensions in the Extension Manager, JupyterLab displays the complete search result and
-the user is free to install any source extension. This is the :ref:`default_mode`.
+When searching extensions in the Extension Manager, JupyterLab displays the complete
+search result and the user is free to install any source extension. This is the :ref:`default_mode`.
 
 To bring more security, you or your administrator can enable ``blocklists`` or ``allowlists``
 mode. JupyterLab will check the extensions against the defined listings.
@@ -341,14 +304,7 @@ mode. JupyterLab will check the extensions against the defined listings.
 .. warning::
 
     Only one mode at a time is allowed. If you or your server administrator configures
-    both block and allow listings, the JupyterLab server will not start.
-
-
-.. figure:: images/listings/simultaneous_block_allow_listings.png
-   :align: center
-   :class: jp-screenshot
-
-   **Figure:** Simultaneous block and allow listings
+    both block and allow listings, the allow listing takes precedence.
 
 
 The following details the behavior for the :ref:`blocklist_mode` and the :ref:`allowlist_mode`.
@@ -382,7 +338,7 @@ the extension entry in the installed list will be highlighted
 in red. It is recommended that you uninstall it. You can move
 your mouse on the question mark icon to read the instructions.
 
-.. figure:: images/listings/installed_blocklisted.png
+.. figure:: ../images/extensions-blocked-list.png
    :align: center
    :class: jp-screenshot
 
@@ -409,7 +365,7 @@ in the installed list will be highlighted in red. It is recommended that
 you uninstall it. You can move your mouse on the question mark icon to
 read the instructions.
 
-.. figure:: images/listings/installed_allowlisted.png
+.. figure:: ../images/extensions-allowed-list.png
    :align: center
    :class: jp-screenshot
 
@@ -425,13 +381,15 @@ You or your administrator can use the following traits to define the listings lo
 - ``blocked_extensions_uris``: A list of comma-separated URIs to fetch a blocklist file from
 - ``allowed_extensions_uris``: A list of comma-separated URIs to fetch an allowlist file from
 - ``listings_refresh_seconds``: The interval delay in seconds to refresh the lists
-- ``listings_request_options``: The optional kwargs to use for the listings HTTP requests
+- ``listings_tornado_options``: The optional kwargs to use for the listings HTTP requests
 
-For example, to set blocked extensions, launch the server with ``--LabServerApp.blocked_extensions_uris=http://example.com/blocklist.json`` where ``http://example.com/blocklist.json`` is a JSON file as described below.
+For example, to set blocked extensions, launch the server with
+``--LabServerApp.blocked_extensions_uris=http://example.com/blocklist.json`` where
+``http://example.com/blocklist.json`` is a JSON file as described below.
 
-The details for the listings_request_options are listed
-on `this page <https://requests.readthedocs.io/en/stable/api/#requests.request>`__
-(for example, you could pass ``{'timeout': 10}`` to change the HTTP request timeout value).
+The details for the ``listings_tornado_options`` are listed
+on `this page <https://www.tornadoweb.org/en/stable/httpclient.html#tornado.httpclient.HTTPRequest>`__
+(for example, you could pass ``{'request_timeout': 10}`` to change the HTTP request timeout value).
 
 The listings are json files hosted on the URIs you have given.
 
@@ -476,3 +434,85 @@ all jupyterlab organization extensions.
    }
 
 
+Un-/Installing using ``jupyter labextension``
+---------------------------------------------
+
+.. note::
+
+   This way of un-/installing JupyterLab extensions is highly discouraged.
+
+The ``jupyter labextension`` command enables you to install or uninstall
+source extensions from `npm <https://www.npmjs.com/search?q=keywords:jupyterlab-extension>`__.
+See the help with ``jupyter labextension --help``. But to install those
+source extensions, you first need to install Node.js.
+
+.. _installing_nodejs:
+
+Installing Node.js
+^^^^^^^^^^^^^^^^^^
+
+Source extensions require `Node.js <https://nodejs.org/>`__ to rebuild
+JupyterLab and activate the extension. If you use ``conda`` with
+``conda-forge`` packages, you can get Node.js with:
+
+.. code:: bash
+
+    conda install -c conda-forge nodejs
+
+If you use ``conda`` with default Anaconda packages (i.e., you don't normally
+use ``conda-forge``), you should install Node.js from the Anaconda default
+channel with ``conda install nodejs`` instead.
+
+You may also be able to get Node.js from your system package manager, or you
+can download Node.js from the `Node.js website <https://nodejs.org/>`__
+and install it directly.
+
+.. _install_command:
+
+Installing and Uninstalling Source Extensions
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+You can install source extensions from `npm
+<https://www.npmjs.com/search?q=keywords:jupyterlab-extension>`__ with:
+
+.. code:: bash
+
+    jupyter labextension install my-extension my-other-extension
+
+Use the ``my-extension@version`` syntax to install a specific version
+of an extension, for example:
+
+.. code:: bash
+
+    jupyter labextension install my-extension@1.2.3
+
+You can also install a source extension that is not uploaded to npm, i.e.,
+``my-extension`` can be a local directory containing the extension, a
+gzipped tarball, or a URL to a gzipped tarball.
+
+.. note::
+    Installing a source extension will require :ref:`installing
+    Node.js <installing_nodejs>` and require a rebuild of JupyterLab.
+
+Uninstall source extensions using the command:
+
+.. code:: bash
+
+    jupyter labextension uninstall my-extension my-other-extension
+
+If you are installing/uninstalling several extensions in several stages,
+you may want to defer rebuilding JupyterLab by including the flag
+``--no-build`` in the install/uninstall step. Once you are ready to
+rebuild, you can run the command:
+
+.. code:: bash
+
+    jupyter lab build
+
+.. note::
+   If you are rebuilding JupyterLab on Windows, you may encounter a
+   ``FileNotFoundError`` due to the default path length on Windows.  Node
+   modules are stored in a deeply nested directory structure, so paths can get
+   quite long. If you have administrative access and are on Windows 8 or 10,
+   you can update the registry setting using these instructions:
+   https://stackoverflow.com/a/37528731.
diff --git a/docs/source/user/file_editor.rst b/docs/source/user/file_editor.rst
index 832be93aef22..0a86433ae0fc 100644
--- a/docs/source/user/file_editor.rst
+++ b/docs/source/user/file_editor.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _file-editor:
 
 Text Editor
@@ -6,15 +9,15 @@ Text Editor
 The text editor in JupyterLab enables you to edit text files in
 JupyterLab:
 
-.. image:: images/file_editor_overview.png
+.. image:: ../images/file-editor-overview.png
    :align: center
    :class: jp-screenshot
 
 The text editor includes syntax highlighting, configurable indentation
-(tabs or spaces), :ref:`key maps <editor-keymaps>` and
+(tabs or spaces) and
 basic theming. These settings can be found in the Settings menu:
 
-.. image:: images/file_editor_settings.png
+.. image:: ../images/file-editor-settings.png
    :align: center
    :class: jp-screenshot
 
diff --git a/docs/source/user/file_formats.rst b/docs/source/user/file_formats.rst
index b2027c5a10b7..2010dbb256d4 100644
--- a/docs/source/user/file_formats.rst
+++ b/docs/source/user/file_formats.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _file-and-output-formats:
 
 File and Output Formats
@@ -16,7 +19,7 @@ displayed as HTML. You can open different editors and viewers for a file
 by right-clicking on the filename in the file browser and using the
 “Open With” submenu:
 
-.. image:: images/file_formats_open_with.png
+.. image:: ../images/file-formats-open-with.png
    :align: center
    :class: jp-screenshot
 
@@ -33,7 +36,7 @@ classes for displaying rich output:
 Running this code will display the HTML in the output of a notebook or
 code console cell:
 
-.. image:: images/file_formats_html_display.png
+.. image:: ../images/file-formats-html-display.png
    :align: center
    :class: jp-screenshot
 
@@ -279,42 +282,9 @@ Output support for Vega/Vega-Lite in a notebook or code console is
 provided through third-party libraries such as Altair (Python), the
 vegalite R package, or Vegas (Scala/Spark).
 
-.. image:: images/file_formats_altair.png
+.. image:: ../images/file-formats-altair.png
    :align: center
    :class: jp-screenshot
 
 A JupyterLab extension that supports Vega 3.x and Vega-Lite 2.x can be
 found `here <https://github.com/jupyterlab/jupyter-renderers>`__.
-
-Virtual DOM
------------
-
--  File extensions: ``.vdom``, ``.json``
--  MIME type: ``application/vdom.v1+json``
-
-Virtual DOM libraries such as `react.js <https://reactjs.org/>`__ have
-greatly improved the experience of rendering interactive content in
-HTML. The nteract project, which collaborates closely with Project
-Jupyter, has created a `declarative JSON
-format <https://github.com/nteract/vdom>`__ for virtual DOM data.
-JupyterLab can render this data using react.js. This works for both VDOM
-files with the ``.vdom`` extension, or within notebook output.
-
-.. _edit-vdom:
-
-Here is an example of a ``.vdom`` file being edited and rendered
-interactively:
-
-.. raw:: html
-
-  <div class="jp-youtube-video">
-    <iframe src="https://www.youtube-nocookie.com/embed/fObR8xeKCJU?rel=0&amp;showinfo=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
-  </div>
-
-The `nteract/vdom <https://github.com/nteract/vdom>`__ library provides
-a Python API for creating VDOM output that is rendered in nteract and
-JupyterLab:
-
-.. image:: images/file_formats_nteract_vdom.png
-   :align: center
-   :class: jp-screenshot
diff --git a/docs/source/user/files.rst b/docs/source/user/files.rst
index 00090d213aad..278d119693ae 100644
--- a/docs/source/user/files.rst
+++ b/docs/source/user/files.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _working-with-files:
 
 Working with Files
@@ -12,14 +15,14 @@ renaming, downloading, copying, and sharing files and directories.
 
 The file browser is in the left sidebar Files tab:
 
-.. image:: images/file_menu_left.png
+.. image:: ../images/files-menu-left.png
    :align: center
    :class: jp-screenshot
    :alt: Arrow pointing to the file browser in the upper left sidebar.
 
 Many actions on files can also be carried out in the File menu:
 
-.. image:: images/file_menu_top.png
+.. image:: ../images/files-menu-top.png
    :align: center
    :class: jp-screenshot
    :alt: The File menu open including options like "New", "Save All."
@@ -86,7 +89,7 @@ Right-click on a file or directory and select "Copy Shareable Link" to
 copy a URL that can be used to open JupyterLab with that file or
 directory open.
 
-.. image:: images/shareable_link.png
+.. image:: ../images/files-shareable-link.png
    :align: center
    :class: jp-screenshot
    :alt: The Copy Shareable Link option in the context menu of a file. Copy Shareable Link is the last entry on the list.
@@ -116,7 +119,7 @@ which enables you to pick an activity and kernel:
 
 You can also create new documents or activities using the File menu:
 
-.. image:: images/file_create_text_file.png
+.. image:: ../images/files-create-text-file.png
    :align: center
    :class: jp-screenshot
    :alt: The context menu entry for creating a new file.
@@ -178,4 +181,3 @@ Hidden files and folders can be displayed in JupyterLab by combining two paramet
 
 1. First the server should be allowed to serve hidden files by setting ``ContentsManager.allow_hidden = True``; see `server documentation <https://jupyter-server.readthedocs.io/en/latest/users/configuration.html>`_.
 2. Then you will be able to display or hide the hidden files through the menu ``View`` -> ``Show Hidden Files``.
-
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diff --git a/docs/source/user/images/toc/syncCollapseState.gif b/docs/source/user/images/toc/syncCollapseState.gif
index 0c51b978cc0f..ab81da31d696 100644
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diff --git a/docs/source/user/images/toc/toc.gif b/docs/source/user/images/toc/toc.gif
index de1ab8d81415..6340b15c38fa 100644
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diff --git a/docs/source/user/index.md b/docs/source/user/index.md
new file mode 100644
index 000000000000..96d6c7909851
--- /dev/null
+++ b/docs/source/user/index.md
@@ -0,0 +1,30 @@
+# User Guide
+
+Use this page to navigate to in-depth guides, tutorials, and how-tos for using [JupyterLab](https://jupyterlab.readthedocs.io/en/stable/).
+
+```{toctree}
+:maxdepth: 2
+announcements
+interface
+urls
+files
+file_editor
+notebook
+code_console
+terminal
+running
+commands
+documents_kernels
+file_formats
+debugger
+toc
+extensions
+jupyterhub
+export
+language
+rtc
+lsp
+interface_customization
+directories
+binder
+```
diff --git a/docs/source/user/interface.rst b/docs/source/user/interface.rst
index 0d5945080ed2..d2d348762356 100644
--- a/docs/source/user/interface.rst
+++ b/docs/source/user/interface.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _interface:
 
 The JupyterLab Interface
@@ -15,7 +18,7 @@ containing tabs of documents and activities, a collapsible :ref:`left sidebar
 terminals <running>`, the :ref:`command palette <commands>`, the :ref:`notebook
 cell tools inspector <notebook>`, and the :ref:`tabs list <tabs>`.
 
-.. image:: images/interface_jupyterlab.png
+.. image:: ../images/interface-jupyterlab.png
    :align: center
    :class: jp-screenshot
    :alt: A screenshot of the default JupyterLab interface. The main work area is in the middle. There is also a left sidebar and a top menu bar.
@@ -66,7 +69,7 @@ The left sidebar contains a number of commonly-used tabs including:
 - the :ref:`table of contents <toc>`,
 - the :ref:`extension manager <extension_manager>`.
 
-.. image:: images/interface_left.png
+.. image:: ../images/interface-left.png
    :align: center
    :class: jp-screenshot
    :alt: The left JupyterLab sidebar showing a variety of files in the file browser.
@@ -78,7 +81,7 @@ The right sidebar contains:
 - the property inspector (active in notebooks),
 - the :ref:`debugger <debugger>`.
 
-.. image:: images/interface_right.png
+.. image:: ../images/interface-right.png
    :align: center
    :class: jp-screenshot
    :alt: The right JupyterLab sidebar showing the property inspector.
@@ -130,14 +133,14 @@ Tabs and Simple Interface Mode
 The Tabs panel in the left sidebar lists the open documents or
 activities in the main work area:
 
-.. image:: images/interface_tabs.png
+.. image:: ../images/interface-tabs.png
    :align: center
    :class: jp-screenshot
    :alt: The tabs panel in JupyterLab with a list of sample documents.
 
 The same information is also available in the Tabs menu:
 
-.. image:: images/interface_tabs_menu.png
+.. image:: ../images/interface-tabs-menu.png
    :align: center
    :class: jp-screenshot
    :alt: The tabs menu in JupyterLab with a list of sample documents.
@@ -202,6 +205,33 @@ Keyboard Shortcuts in the Settings tab.
        <iframe src="https://www.youtube-nocookie.com/embed/rhW3kAExCik?rel=0&amp;showinfo=0" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>
     </div>
 
+To define a custom keyboard shortcut which runs more than one command, add a keyboard shortcut
+for ``apputils:run-all-enabled`` command in Keyboard Shortcuts advanced settings. The commands you
+wish to run are passed in the ``args`` argument as a list of strings:
+
+.. code:: json
+
+    {
+      "shortcuts": [
+        {
+          "command": "apputils:run-all-enabled",
+          "keys": [
+            "Accel T"
+          ],
+          "args": {
+            "commands": [
+              "docmanager:save",
+              "application:close"
+            ]
+          },
+          "selector": "body"
+        }
+      ]
+    }
+
+In this example ``docmanager:save`` and ``application:close`` commands are mapped to ``Accel T``.
+The commands are run in succession when you use the shortcut.
+
 .. _editor-keymaps:
 
 You can also customize the :ref:`text editor <file-editor>` to use vim, emacs, or Sublime Text
diff --git a/docs/source/user/interface_customization.rst b/docs/source/user/interface_customization.rst
new file mode 100644
index 000000000000..22ae38f11a89
--- /dev/null
+++ b/docs/source/user/interface_customization.rst
@@ -0,0 +1,315 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+.. _interface-customization:
+
+Interface Customization
+=======================
+
+Multiple elements in the JupyterLab interface are customizable to display
+new elements or hide default ones.
+
+.. _layout-customization:
+
+Layout
+------
+
+The JupyterLab layout has two modes: the simple mode (or *single document* mode) and the default
+mode (or *multiple documents* mode). In both modes, the widgets are attached in one of the four
+area: the ``left`` or ``right`` sidebars, the ``main`` dock panel area or the ``down`` area.
+
+The default positions of widgets can be overridden through the settings based on the
+type of widgets. The setting to modify is the *layout* one in section *JupyterLab Shell*.
+
+The available widget types and their default area is listed below
+
+==================  ========  ======
+Type                multiple  single
+==================  ========  ======
+Console             main      main
+CSVTable            main      main
+TSVTable            main      main
+Editor              main      main
+HTML Viewer         main      main
+Image               main      main
+Image (Text)        main      main
+JSON                main      main
+Markdown Preview    main      main
+Notebook            main      main
+Cloned Output       main      down
+Linked Console      main      down
+Inspector           main      down
+PDF                 main      main
+Terminal            main      main
+VDOM                main      main
+Vega-Lite4          main      main
+Vega5               main      main
+Settings            main      main
+Advanced Settings   main      main
+Licenses            main      main
+Debugger            right     right
+Debugger Variables  main      main
+Debugger Sources    main      main
+Property Inspector  right     right
+Extension Manager   left      left
+File Browser        left      left
+Sessions and Tabs   left      left
+Table of Contents   left      left
+Log Console         down      down
+==================  ========  ======
+
+.. code-block:: js
+
+    "layout": {
+      "single": {
+        "Linked Console": { "area": "down" },
+        "Inspector": { "area": "down" },
+        "Cloned Output": { "area": "down" },
+        // Add new terminals in the down area in simple mode
+        "Terminal": { "area": "down" }
+      },
+      "multiple": {
+        // Add new terminals in the right sidebar in default mode
+        "Terminal": { "area": "right" }
+      }
+    }
+
+The above example will result in the following changes:
+
+.. figure:: ../images/default-terminal-position-single.png
+    :alt: (Before Change) Default terminal position in "multiple" (default) mode
+
+    (Before Change) Default terminal position in "multiple" (default) mode
+
+.. figure:: ../images/customized-terminal-position-single.png
+    :alt: (After Change) Customized terminal position in "multiple" (default) mode
+
+    (After Change) Customized terminal position in "multiple" (default) mode
+
+.. _toolbars-customization:
+
+Toolbars
+--------
+
+Lots of toolbars are customizable. Here is a mapping of the customizable toolbars
+and the associated setting.
+
+- Cell: *Cell Toolbar* -> *toolbar*
+- CSV Viewer: *CSV Viewer* -> *toolbar*
+- File Browser: *File Browser Widget* -> *toolbar*
+- HTML Viewer: *HTML Viewer* -> *toolbar*
+- Notebook panel: *Notebook Panel* -> *toolbar*
+- Text Editor: *Text Editor* -> *toolbar*
+- TSV Viewer: *TSV Viewer* -> *toolbar*
+
+Those settings are accessible through the interactive *Settings Editor*. But you
+may find more comfortable to use the *Advanced Settings Editor* (accessible by clicking
+on *JSON Settings Editor* button in the top right corner of the *Settings Editor*).
+
+Your ``toolbar`` customization will be merged with the default menu bar definition (this
+is a different behavior as the other settings that are overriding the default settings).
+So to remove a default item, you will need to disable it. To do that, you will need
+to set the toolbar item ``disabled`` attribute to ``true``; an item is uniquely identified
+by its ``name`` attribute.
+
+.. code-block:: js
+
+    "toolbar": [
+      // Disable the restart and run all button
+      {
+        "name": "restart-and-run",
+        "disabled": true
+      },
+      // Add a new button to clear all cell outputs
+      {
+        "name": "clear-all-outputs",
+        "command": "notebook:clear-all-cell-outputs"
+      }
+    ]
+
+The above example for the notebook panel, will results in the following changes:
+
+.. figure:: ../images/default-notebook-toolbar.png
+    :alt: Default notebook toolbar
+
+    Default notebook toolbar
+
+.. figure:: ../images/customized-notebook-toolbar.png
+    :alt: Customized notebook toolbar
+
+    Customized notebook toolbar
+
+A toolbar is defined by a list of items. Each item must have an unique ``name``. That
+name will create a toolbar item if it is associated with a special widget (e.g. the
+cell type toolbar selector). Otherwise it will require a ``command`` that will be triggered
+when clicking on a toolbar button (see the available :ref:`Commands list<commands-list>`).
+The items are sorted by their ``rank``.
+
+.. note::
+
+    If you want to more advanced customization please refer to the :ref:`Toolbar item definition<toolbar-item>`.
+
+.. _menu-bar-customization:
+
+Menu Bar
+--------
+
+The top menu bar definition can be customized through the *Advanced Settings Editor*. You can
+access it by opening the *Settings Editor* from the *Settings* menu, then click on the
+*JSON Settings Editor* in the top right corner.
+
+In the *Advanced Settings Editor*, you will need to select the *Main Menu* section in
+the left panel. Your ``menus`` customization will be merged with the default menu bar definition (this
+is a different behavior as the other settings that are overriding the default settings).
+So to remove a default entry, you will need to disable it. To do that, you will need
+to set the menu entry ``disabled`` attribute to ``true``; an entry is uniquely identified
+by its ``command`` and ``args`` attributes.
+
+New entries can be added to existing menus or you can create new menus.
+
+.. code-block:: js
+
+    "menus": [
+      {
+        // Disable the Run menu
+        "id": "jp-mainmenu-run",
+        "disabled": true
+      },
+      {
+        // Move the Tabs menu to the end by changing its rank
+        "id": "jp-mainmenu-tabs",
+        "rank": 1100,
+        "items": [
+            // Add a new entry in the Tabs menu
+            {
+                "command": "launcher:create",
+                "rank": 0
+            }
+        ]
+      },
+      {
+        // Disable the Open from Path entry in the File menu
+        "id": "jp-mainmenu-file",
+        "items": [
+          {
+            "command": "filebrowser:open-path",
+            "disabled": true
+          }
+        ]
+      }
+    ]
+
+The above example, will results in the following changes:
+
+.. figure:: ../images/default-menu-bar.png
+    :alt: Default menu bar
+
+    Default menu bar
+
+.. figure:: ../images/customized-menu-bar.png
+    :alt: Customized menu bar
+
+    Customized menu bar
+
+The menu are identified by the following ids:
+
+- File menu: ``jp-mainmenu-file``
+
+  * New file submenu: ``jp-mainmenu-file-new``
+
+- Edit menu: ``jp-mainmenu-edit``
+- View menu: ``jp-mainmenu-view``
+
+  * Appearance submenu: ``jp-mainmenu-view-appearance``
+
+- Run menu: ``jp-mainmenu-run``
+- Kernel menu: ``jp-mainmenu-kernel``
+- Tabs menu: ``jp-mainmenu-tabs``
+- Settings menu: ``jp-mainmenu-settings``
+- Help menu: ``jp-mainmenu-help``
+
+An entry can be any valid command available; see :ref:`Commands list<commands-list>`.
+And the entries are sorted by their ranks.
+
+.. note::
+
+    If you want to more advanced customization (e.g. changing the separators or sub-menus),
+    please refer to the :ref:`Main Menu settings definition <mainmenu>`.
+
+.. _context-menu-customization:
+
+Context Menu
+------------
+
+The context menu definition can be customized through the *Advanced Settings Editor*. You can
+access it by opening the *Settings Editor* from the *Settings* menu, then click on the
+*JSON Settings Editor* in the top right corner.
+
+In the *Advanced Settings Editor*, you will need to the select the *Application Context Menu* section in
+the left panel. Your ``contextMenu`` customization will be merged with the default context menu definition (this
+is a different behavior as the other settings that are overriding the default settings).
+So to remove a default entry, you will need to disable it. To do that, you will need
+to set the menu entry ``disabled`` attribute to ``true``; an entry is uniquely identified
+by its ``command``, ``selector`` and ``args`` attributes.
+
+New entries can be added to existing menus.
+
+.. code-block:: js
+
+    "contextMenu": [
+      // Disable New notebook entry
+      {
+        "command": "notebook:create-new",
+        "selector": ".jp-DirListing-content",
+        "args": {
+          "isContextMenu": true
+        },
+        "disabled": true
+      },
+      // Add new entry on notebook file to export them as Markdown
+      {
+        "command": "notebook:export-to-format",
+        "selector": ".jp-DirListing-item[data-file-type=\"notebook\"]",
+        "rank": 3,
+        // Command arguments
+        "args": {
+          "format": "markdown",
+          "label": "Export as Markdown"
+        }
+      }
+    ]
+
+The above example, will results in the following changes:
+
+.. figure:: ../images/default-context-menu.png
+    :alt: Default context menu
+
+    Default context menu
+
+.. figure:: ../images/customized-context-menu.png
+    :alt: Customized context menu
+
+    Customized context menu
+
+An entry can be any valid command available; see :ref:`Commands list<commands-list>`.
+And a CSS selector to define which elements will have that context menu entry.
+And the entries are sorted by their ranks.
+
+.. note::
+
+    If you want to more advanced customization (e.g. changing the separators or sub-menus),
+    please refer to the :ref:`Context Menu settings definition <context_menu>`.
+
+File Browser
+^^^^^^^^^^^^
+
+Users can add a "Open in Simple Mode" context menu option by adding the following to *Settings* -> *Application Context Menu* -> ``contextMenu``
+
+.. code:: json
+
+    {
+        "command": "filebrowser:open-browser-tab",
+        "args": { "mode": "single-document" },
+        "selector": ".jp-DirListing-item[data-isdir=\"false\"]",
+        "rank": 1.6
+    }
diff --git a/docs/source/user/jupyterhub.rst b/docs/source/user/jupyterhub.rst
index db9e9fa5975e..f6dbec7917c8 100644
--- a/docs/source/user/jupyterhub.rst
+++ b/docs/source/user/jupyterhub.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _jupyterhub:
 
 JupyterLab on JupyterHub
@@ -21,10 +24,6 @@ JupyterLab, set the following configuration option in your
 
     c.Spawner.default_url = "/lab"
 
-In this configuration, users can still access the classic Notebook at ``/tree``,
-by either typing that URL into the browser, or by using the "Launch Classic
-Notebook" item in JupyterLab's Help menu.
-
 Example Configuration
 ---------------------
 
diff --git a/docs/source/user/language.rst b/docs/source/user/language.rst
index 641e4a358f97..76a170414a72 100644
--- a/docs/source/user/language.rst
+++ b/docs/source/user/language.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _language:
 
 Localization and language
@@ -9,7 +12,7 @@ the display language of the user interface.
 Language packs
 --------------
 
-To be able to provide a new display language, you will need to 
+To be able to provide a new display language, you will need to
 install a language pack.
 
 Visit the `language packs repository <https://github.com/jupyterlab/language-packs/>`__
@@ -43,19 +46,19 @@ select the desired language in the Language submenu.
 The Language submenu will only list any previously installed language
 packs.
 
-.. image:: images/language_settings.png
+.. image:: ../images/language-settings.png
    :align: center
    :class: jp-screenshot
 
 Selecting the new language will prompt for confirmation.
 
-.. image:: images/language_change.png
+.. image:: ../images/language-change.png
    :align: center
    :class: jp-screenshot
 
 Once you accept, the browser will refresh and the interface will
 now be shown, for this example in Simplified Chinese.
 
-.. image:: images/language_chinese.png
+.. image:: ../images/language-chinese.png
    :align: center
    :class: jp-screenshot
diff --git a/docs/source/user/lsp.rst b/docs/source/user/lsp.rst
new file mode 100644
index 000000000000..e8f08bc76f99
--- /dev/null
+++ b/docs/source/user/lsp.rst
@@ -0,0 +1,102 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+.. _lsp:
+
+Language Server Protocol support
+=====================================
+
+.. warning::
+
+    Language Server Protocol (LSP) support for JupyrterLab is an experimental feature. It is based on the  `jupyterlab-lsp <https://jupyterlab-lsp.readthedocs.io/>`_ extension. More detailed documentation can be found on their page.
+
+JupyterLab 4.0 ships with components on both backend and frontend to lay the infrastructure for handling and communicating with language servers.
+
+This means that other extensions can be built on top of JupyterLab's services to provide LSP features for notebooks and files.
+
+The LSP service is disabled by default, it can be enabled by togging the *Activate* option in the *Language Servers* section of the setting page.
+
+Requirements
+------------
+
+By default JupyterLab does not come with any language servers preinstalled, you need to install the servers by yourself. Supported language servers and the suggested package managers to install them are listed in the tables below:
+
+.. role:: raw-html(raw)
+    :format: html
+
+
+.. list-table:: Notebook-optimized Language Servers
+   :widths: auto
+   :header-rows: 1
+
+   * - Languages
+     - Implementation
+     - Installation
+   * - python
+     - `jedi-language-server <https://github.com/pappasam/jedi-language-server>`_
+     - pip: ``pip install -U jedi-language-server`` :raw-html:`<br />` conda: ``conda install -c conda-forge jedi-language-server``
+   * - python
+     - `pylsp <https://github.com/python-lsp/python-lsp-server>`_
+     - pip: ``pip install 'python-lsp-server[all]'`` :raw-html:`<br />` conda: ``conda install -c conda-forge python-lsp-server``
+   * - julia
+     - `julia-language-server <https://github.com/julia-vscode/LanguageServer.jl>`_
+     - julia: ``using Pkg; Pkg.add("LanguageServer")``
+   * - r
+     - `r-languageserver <https://github.com/REditorSupport/languageserver>`_
+     - cran: ``install.packages("languageserver")`` :raw-html:`<br />` conda: ``conda install -c conda-forge r-languageserver``
+   * - robotframework
+     - `robotframework_ls <https://github.com/robocorp/robotframework-lsp>`_
+     - pip: ``pip install robotframework-lsp`` :raw-html:`<br />` conda: ``conda install -c conda-forge robotframework-lsp``
+
+
+.. list-table:: NodeJS-based Language Servers
+   :widths: auto
+   :header-rows: 1
+
+   * - Languages
+     - Implementation
+     - Installation
+   * - bash :raw-html:`<br />` sh
+     - `bash-language-server <https://github.com/mads-hartmann/bash-language-server>`_
+     - npm: ``npm install --save-dev bash-language-server`` :raw-html:`<br />` yarn: ``yarn add --dev bash-language-server``
+   * - dockerfile
+     - `dockerfile-language-server-nodejs <https://github.com/rcjsuen/dockerfile-language-server-nodejs>`_
+     - npm: ``npm install --save-dev dockerfile-language-server-node`` :raw-html:`<br />` yarn: ``yarn add --dev dockerfile-language-server-node``
+   * - python
+     - `pyright <https://github.com/microsoft/pyright>`_
+     - npm: ``npm install --save-dev pyright`` :raw-html:`<br />` yarn: ``yarn add --dev pyright``
+   * - sql
+     - `sql-language-server <https://github.com/joe-re/sql-language-server>`_
+     - npm: ``npm install --save-dev sql-language-server`` :raw-html:`<br />` yarn: ``yarn add --dev sql-language-server``
+   * - javascript :raw-html:`<br />` typescript
+     - `typescript-language-server <https://github.com/typescript-language-server/typescript-language-server>`_
+     - npm: ``npm install --save-dev typescript-language-server`` :raw-html:`<br />` yarn: ``yarn add --dev typescript-language-server``
+   * - markdown :raw-html:`<br />` ipythongfm :raw-html:`<br />` gfm
+     - `unified-language-server <https://github.com/unifiedjs/unified-language-server>`_
+     - npm: ``npm install --save-dev unified-language-server`` :raw-html:`<br />` yarn: ``yarn add --dev unified-language-server``
+   * - css :raw-html:`<br />` less :raw-html:`<br />` scss
+     - `vscode-css-languageserver-bin <https://github.com/vscode-langservers/vscode-css-languageserver-bin>`_
+     - npm: ``npm install --save-dev vscode-css-languageserver-bin`` :raw-html:`<br />` yarn: ``yarn add --dev vscode-css-languageserver-bin``
+   * - html
+     - `vscode-html-languageserver-bin <https://github.com/vscode-langservers/vscode-html-languageserver-bin>`_
+     - npm: ``npm install --save-dev vscode-html-languageserver-bin`` :raw-html:`<br />` yarn: ``yarn add --dev vscode-html-languageserver-bin``
+   * - json
+     - `vscode-json-languageserver-bin <https://github.com/vscode-langservers/vscode-json-languageserver-bin>`_
+     - npm: ``npm install --save-dev vscode-json-languageserver-bin`` :raw-html:`<br />` yarn: ``yarn add --dev vscode-json-languageserver-bin``
+   * - yaml
+     - `yaml-language-server <https://github.com/redhat-developer/yaml-language-server>`_
+     - npm: ``npm install --save-dev yaml-language-server`` :raw-html:`<br />` yarn: ``yarn add --dev yaml-language-server``
+
+For other community-supported language servers, see `the extension documentation <https://jupyterlab-lsp.readthedocs.io/en/latest/Language%20Servers.html>`_.
+
+Settings
+------------
+
+The settings for language servers can be found on the settings page of JupyterLab (*Settings > Settings Editor > Language Servers*).
+
+- **Activate**: this option allows users to enable or disable the LSP services.
+- **Language Server**: this section allows users to configure the installed language servers.
+
+.. figure:: ./images/lsp/settings.png
+
+   Language servers setting page.
diff --git a/docs/source/user/notebook.rst b/docs/source/user/notebook.rst
index 47f42a3a4279..0090716de719 100644
--- a/docs/source/user/notebook.rst
+++ b/docs/source/user/notebook.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _notebook:
 
 Notebooks
@@ -7,7 +10,7 @@ Jupyter notebooks are documents that combine live runnable code with
 narrative text (Markdown), equations (LaTeX), images, interactive
 visualizations and other rich output:
 
-.. image:: images/notebook/notebook_ui.png
+.. image:: ../images/notebook-ui.png
    :align: center
    :class: jp-screenshot
    :alt: JupyterLab with notebook titled Data.ipynb open. This notebook has text, code, an imported CSV, and an interactive map all in one.
@@ -121,7 +124,7 @@ information about the types of the matched items:
 
 Note: IPython 6.3.1 has temporarily disabled type annotations.
 To re-enable them, add ``c.Completer.use_jedi = True`` to an
-`ipython_config.py <https://ipython.readthedocs.io/en/stable/development/config.html>`__ file. 
+`ipython_config.py <https://ipython.readthedocs.io/en/stable/development/config.html>`__ file.
 
 .. _tooltip:
 
@@ -150,8 +153,48 @@ and select “New Console for Notebook”:
 
 .. _cell-toolbar:
 
+Cell Toolbar
+^^^^^^^^^^^^
+
 If there is enough room for it, each cell has a toolbar that provides quick access to
-commonly-used functions. If you would like to disable the cell toolbar, run
-``jupyter labextension disable @jupyterlab/cell-toolbar-extension`` on the command line.
-You can enable it again by running
-``jupyter labextension enable @jupyterlab/cell-toolbar-extension``.
+commonly-used functions. If you would like to disable the cell toolbar, run:
+
+.. code:: bash
+
+    jupyter labextension disable @jupyterlab/cell-toolbar-extension
+
+on the command line. You can enable it again by running:
+
+.. code:: bash
+
+    jupyter labextension enable @jupyterlab/cell-toolbar-extension
+
+.. _notebook-trust:
+
+Trust
+^^^^^
+
+JavaScript and HTML in notebooks created on other machines are not trusted,
+which results in sanitization of HTML and interactive outputs not being
+displayed until the notebook is explicitly trusted.
+
+.. |trusted| image:: ../images/notebook-trusted.png
+.. |not-trusted| image:: ../images/notebook-not-trusted.png
+
+The trust status of the active notebook is indicated by a shield icon in the
+status bar; a checkmark (|trusted|) in the shield indicates a trusted
+notebook while a cross (|not-trusted|) indicates an untrusted notebook.
+To trust a notebook (and render any blocked outputs) use the ``Trust Notebook``
+command available in the :ref:`command palette <commands>`.
+
+JupyterLab follows the Jupyter Notebook's
+`Security Model <https://jupyter-server.readthedocs.io/en/stable/operators/security.html#our-security-model>`__
+where any output generated by the current user is trusted, with following
+implementation details of relevance to advanced users:
+
+1. manually re-running a non-trusted cell will mark it as trusted,
+2. if any of the code cells is not trusted, the entire notebook is considered
+   not trusted and none of the outputs will be trusted upon reopening it (while
+   it is unusual to see a notebook with a single untrusted cell, this can occur
+   when copy-pasting cells from an untrusted notebook),
+3. only code cells can be trusted; the Markdown cells are always sanitised.
diff --git a/docs/source/user/rtc.rst b/docs/source/user/rtc.rst
index 12ebe96b9099..22b7d0508888 100644
--- a/docs/source/user/rtc.rst
+++ b/docs/source/user/rtc.rst
@@ -6,86 +6,9 @@
 Real Time Collaboration
 =======================
 
-.. note::
+From JupyterLab v4, it is possible to activate Real-Time Collaboration by installing
+the extension `jupyter_collaboration <https://github.com/jupyterlab/jupyter_collaboration>`_.
 
-    To activate Real-Time Collaboration in JupyterLab, is necessary to use Jupyter
-    Server v2.
-
-From JupyterLab 3.1, file documents and notebooks have collaborative
-editing using the `Yjs shared editing framework <https://github.com/yjs/yjs>`_.
-Editors are not collaborative by default; to activate it, start JupyterLab
-with the ``--collaborative`` flag and you need to upgrade Jupyter Server to 
-version 2.0.0 or later. To install it with pip for example:
-
-.. code-block:: bash
-
-    python -m pip install "jupyter_server>=2.0.0"
-
-To share a document with other users, you can copy the URL and send it, or you
-can install a helpful extension called
-`jupyterlab-link-share <https://github.com/jupyterlab-contrib/jupyterlab-link-share>`_
-that might help to share the link including the token.
-
-The new collaborative editing feature enables collaboration in real-time
-between multiple clients without user roles. When sharing the URL of a
-document to other users, they will have access to the same environment you
-are working on (they can e.g. write and execute the cells of a notebook).
-
-Moreover, you can see the cursors from other users with an anonymous
-username, a username that will disappear in a few seconds to make room
-for what is essential, the document's content.
-
-.. image:: images/rtc_shared_cursors.png
-   :align: center
-   :class: jp-screenshot
-
-A nice improvement from Real Time Collaboration (RTC) is that you don't need to worry
-about saving a document anymore. It is automatically taken care of: each change made by
-any user to a document is saved after one second by default. You can see it with the dirty indicator
-being set after a change, and cleared after saving. This even works if the file is modified
-outside of JupyterLab's editor, for instance in the back-end with a third-party editor or
-after changing branch in a version control system such as ``git``. In this case, the file is
-watched and any change will trigger the document update within the next second, by default.
-
-Something you need to be aware of is that not all editors in JupyterLab support RTC
-synchronization. Additionally, opening the same underlying document using different editor
-types currently results in a different type of synchronization.
-For example, in JupyterLab, you can open a Notebook using the Notebook
-editor or a plain text editor, the so-called Editor. Those editors are
-not synchronized through RTC because, under the hood, they use a different model to
-represent the document's content, what we call ``DocumentModel``. If you
-modify a Notebook with one editor, it will update the content in the other editor within
-one second, going through the file change detection mentioned above.
-
-Overall, document write access is much more streamlined with RTC. You will never see any warning
-message indicating that the file was modified by someone else, and asking if you want to keep
-your changes or revert to the saved content. There cannot be any conflict, everyone works in sync
-on the same document.
-
-.. note::
-
-    By default, any change made to a document is saved to disk in an SQLite database file called
-    ``.jupyter_ystore.db`` in the directory where JupyterLab was launched. This file helps in
-    preserving the timeline of documents, for instance between JupyterLab sessions, or when a user
-    looses connection and goes offline for a while. You should never have to touch it, and it is
-    fine to just ignore it, including in your version control system (don't commit this file). If
-    you happen to delete it, there shouldn't be any serious consequence either.
-
-There are a number of settings that you can change:
-
-.. code-block:: bash
-
-  # The delay of inactivity (in seconds) after which a document is saved to disk (default: 1).
-  # If None, the document will never be saved.
-  jupyter lab --collaborative --YDocExtension.document_save_delay=0.5
-
-  # The period (in seconds) to check for file changes on disk (default: 1).
-  # If 0, file changes will only be checked when saving.
-  jupyter lab --collaborative --YDocExtension.file_poll_interval=2
-
-  # The delay (in seconds) to keep a document in memory in the back-end after all clients disconnect (default: 60).
-  # If None, the document will be kept in memory forever.
-  jupyter lab --collaborative --YDocExtension.document_cleanup_delay=100
-
-  # The YStore class to use for storing Y updates (default: JupyterSQLiteYStore).
-  jupyter lab --collaborative --YDocExtension.ystore_class=ypy_websocket.ystore.TempFileYStore
+For more information about Real-Time Collaboration in JupyterLab, please check out
+``jupyter_collaboration`` documentation
+`here <https://jupyterlab-realtime-collaboration.readthedocs.io>`_.
diff --git a/docs/source/user/running.rst b/docs/source/user/running.rst
index a514a6241ac7..1f45ae887e2b 100644
--- a/docs/source/user/running.rst
+++ b/docs/source/user/running.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _running:
 
 Managing Kernels and Terminals
@@ -7,7 +10,7 @@ The Running panel in the left sidebar shows a list of all the kernels and
 terminals currently running across all notebooks, code consoles, and
 directories:
 
-.. image:: images/running_layout.png
+.. image:: ../images/running-layout.png
    :align: center
    :class: jp-screenshot
    :alt:
diff --git a/docs/source/user/terminal.rst b/docs/source/user/terminal.rst
index da9946a93875..05057a40e635 100644
--- a/docs/source/user/terminal.rst
+++ b/docs/source/user/terminal.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _terminal:
 
 Terminals
@@ -11,7 +14,7 @@ running, with the privileges of your user. Thus, if JupyterLab is
 installed on your local machine, the JupyterLab terminals will run
 there.
 
-.. image:: images/terminal_layout.png
+.. image:: ../images/terminal-layout.png
    :align: center
    :class: jp-screenshot
    :alt: JupyterLab with an open terminal in the main document area.
diff --git a/docs/source/user/toc.rst b/docs/source/user/toc.rst
index 4a64c9760c72..f2896a2242f7 100644
--- a/docs/source/user/toc.rst
+++ b/docs/source/user/toc.rst
@@ -1,113 +1,87 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _toc:
 
 Table Of Contents
-====================
-
-The table of contents extension is built-in JupyterLab since version 3.0. This makes it easy to see and navigate the structure of a document.
-
-
-Anyone using earlier JupyterLab version should install a `dedicated extension <https://github.com/jupyterlab/jupyterlab-toc>`__.
+=================
 
+The table of contents makes it easy to see and navigate the structure of a document.
 
 A table of contents is auto-generated in the :ref:`left sidebar
-<left-sidebar>` when you have a notebook, markdown, latex or python files opened. The entries are clickable, and scroll the document to the heading in question.
-
-
+<left-sidebar>` when you have a notebook, markdown, latex or python files opened.
+The entries are clickable, and scroll the document to the heading in question.
 
 In the sidebar panel, you can number headings, collapse sections, and navigate into the file.
 
-
-
-Here is an animation showing the table of content use, with a notebook from the `Python Data Science Handbook <https://github.com/jakevdp/PythonDataScienceHandbook>`_ :
-
-
+Here is an animation showing the table of content use with a notebook:
 
 .. image:: ./images/toc/toc.gif
     :alt: A GIF displaying how to use the table of contents feature within a notebook. It toggles which cells types are listed and toggles expanding and collapsing headings.
 
+The table of contents will be automatically generated for your notebook by taking all the
+headings from your markdown cells. Each listed section will be linked to the actual section
+within your document.
 
+.. note::
 
-The table of contents tool will automatically generate a table of contents for your notebook by taking all the headings from your markdown cells. 
-Because the Notebook does not utilize formal page breaks or numbers, each listed section will be hyperlinked to the actual section within your document.
-
-
-
-Automatic section numbering will go through your Notebook and number your sections and subsection as designated by your headings. This means that if you've moved one or more big sections around several times, you won't have to go through your document and renumber it, as well as all its subsections, yourself.
-
+    Markdown headings with a HTML tag that contains the class ``jp-toc-ignore`` will be ignored;
+    e.g. ``# Title <a class="jp-toc-ignore"></a>``.
 
+Automatic section numbering will go through your Notebook and number your sections and
+subsection as designated by your headings. This means that if you've moved one or more big
+sections around several times, you won't have to go through your document and renumber it,
+as well as all its subsections, yourself.
 
 ------------------------------------------------------------------------------------------------------------
 
-
-
-Automatic section numbering can be skipped for first-level headings (``h1``) by setting the ``numberingH1``
-setting to ``false``. To perform that go to settings and click on Advanced Settings Editor and then go to Table of Contents section
-and in User Preferences add ``numberingH1:false`` and save the settings. Here is an animation showing its use
-
-
+Automatic section numbering can be skipped for first-level headings (``h1``). You can toggle that
+option via the *More actions* button in the table of contents toolbar. Here is an animation
+showing its use:
 
 .. image:: ./images/toc/numberingH1.gif
     :alt: A GIF showing how to toggle Automatic section numbering for headings within a notebook. Clicking the button instantly applies multilevel numbering to each heading.
 
-
-
 ------------------------------------------------------------------------------------------------------------
 
-
-
 Context menus are added to those table of contents headings having notebook sections
-containing runnable code cells, and clicking the *Run Cell(s)* option will make the cells run in notebook.
-Here is an animation showing its use
-
-
+containing runnable code cells, and clicking the *Select and Run Cell(s) for this Heading*
+option will make the cells run in notebook. Here is an animation showing its use:
 
 .. image:: ./images/toc/runcell.gif
 
-
-
 ------------------------------------------------------------------------------------------------------------
 
-
-
- There will be a synchronization between table of contents and notebook if the ``syncCollapseState`` attribute
+ Cell heading collapse state will be synchronized between the table of contents and notebook if the ``syncCollapseState`` attribute
  is set to ``true`` in the settings. If a heading is collapsed in the table of contents the notebook will also gets collapsed and
- similarly expanding cells in notebook will expand the table of contents. To perform that go to settings and click on Advanced Settings
- Editor and then go to Table of Contents section and in User Preferences add ``syncCollapseState:true`` and save the settings. Here is an animation showing its use
-
-
+ similarly expanding cells in notebook will expand the table of contents. To activate that feature go to settings and click on Settings
+ Editor and then go to Table of Contents section and in User Preferences check the ``syncCollapseState`` box. Here is an animation showing its use:
 
 .. image:: ./images/toc/syncCollapseState.gif
 
-
-
 ------------------------------------------------------------------------------------------------------------
 
-
 The headings in the cell outputs get numbered by default in the table of contents and the notebook.
-This can be tuned by changing the settings ``includeOutput`` to ``false``. To perform that go to settings and click on Advanced Settings
-Editor and then go to Table of Contents section and in User Preferences add ``includeOutput:false`` and save the settings. Here is an animation showing its use
-
-
+This can be tuned by changing the settings ``includeOutput`` to ``false``. To perform that go to settings and click on Settings
+Editor and then go to Table of Contents section and in User Preferences add unchecked ``includeOutput`` box. Here is an animation showing its use
 
 .. image:: ./images/toc/includeOutput.gif
 
 
-
-
-
-
 .. _Settings:
 
 Settings
 --------
 
+The table of contents behavior can be modified via settings which can be set in JupyterLab's settings editor.
 
+* **includeOutput** : Whether to list headings from the cell outputs or not.
+* **maximalDepth** : Maximal headings depth (default: 4).
+* **numberingH1** : Whether to number the first-level headings (``h1``) or not.
+* **numberHeaders** : Whether to number the headings or not.
+* **syncCollapseState** : Whether to synchronize the cell and the table of contents collapse state or not.
+* **baseNumbering** : Starting point for heading numbering (default: 1).
 
-The extension behavior can be modified via settings which can be set in JupyterLab's advanced settings editor.
-
-
+.. note::
 
-* **collapsibleNotebooks**: enable the ability to collapse sections of notebooks from the table of contents
-* **numberingH1**         : numbers the first-level headings (``h1``) if set to ``true``
-* **syncCollapseState**   : synchronization of collapsing behaviour between the table of contents and notebook
-* **includeOutput**       : includes the numbering for Outputs in both notebook and table of contents.
+    Settings effects depend on the type of document.
diff --git a/docs/source/user/urls.rst b/docs/source/user/urls.rst
index 2bf4d7c203b0..87a8a5ffaf74 100644
--- a/docs/source/user/urls.rst
+++ b/docs/source/user/urls.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _urls:
 
 JupyterLab URLs
@@ -32,6 +35,41 @@ Entering the above URL will show the workspace root directory instead of the ``/
 directory in the file browser.
 
 
+Linking Notebook Sections
+-------------------------
+
+To create an URL which will scroll to a specific heading in the notebook append
+a hash (``#``) followed by the heading text with spaces replaced by minus
+characters (``-``), for example:
+
+.. code-block:: none
+
+  /lab/tree/path/to/notebook.ipynb?#my-heading
+
+To get a link for a specific heading, hover over it in a rendered markdown cell
+until you see a pilcrow mark (``¶``) which will contain the desired anchor link:
+
+.. image:: ../images/notebook-heading-anchor-link.png
+   :alt: A markdown cell with pilcrow mark (¶) which serves as an anchor link and is placed after a heading
+   :class: jp-screenshot
+
+
+.. note::
+
+    Currently disambiguation of headings with identical text is not supported.
+
+JupyterLab experimentally supports scrolling to a specified cell by identifier
+using ``#cell-id=<cell-id>`` Fragment Identification Syntax.
+
+.. code-block:: none
+
+  /lab/tree/path/to/notebook.ipynb?#cell-id=my-cell-id
+
+.. note::
+
+    The ``cell-id`` fragment locator is not part of a formal Jupyter standard and subject to change.
+    To leave feedback, please comment in the discussion: `nbformat#317 <https://github.com/jupyter/nbformat/issues/317>`_.
+
 .. _url-workspaces-ui:
 
 Managing Workspaces (UI)
@@ -178,14 +216,14 @@ The `metadata` must be a mapping with an `id`
 key that has the same value as the ID of the workspace. This should also be the relative URL path to access the workspace,
 like `/lab/workspaces/foo`.
 
-The `data` key maps to the initial state of the `IStateDB`. Many plugins look in the State DB for the configuration. 
+The `data` key maps to the initial state of the `IStateDB`. Many plugins look in the State DB for the configuration.
 Also any plugins that register with the `ILayoutRestorer` will look up all keys in the State DB
 that start with the `namespace` of their tracker before the first `:`. The values of these keys should have a `data`
 attribute that maps.
 
 For example, if your workspace looks like this:
 
-.. code-block:: bash
+.. code-block:: json
 
   {
     "data": {
diff --git a/examples/app/README.md b/examples/app/README.md
new file mode 100644
index 000000000000..fffc0e920ba1
--- /dev/null
+++ b/examples/app/README.md
@@ -0,0 +1,8 @@
+# JupyterLab application remix example
+
+This example demonstrates how to create a JupyterLab application remix by
+combining existing core packages.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
+
+<figcaption>Pink rectangles mask transient data.</figcaption>
diff --git a/examples/app/example.ipynb b/examples/app/example.ipynb
index 13e846cb456c..2862792f615d 100644
--- a/examples/app/example.ipynb
+++ b/examples/app/example.ipynb
@@ -35,6 +35,7 @@
    ],
    "source": [
     "import sys\n",
+    "\n",
     "print('hello world', flush=True)\n",
     "for i in range(3):\n",
     "    print(i, flush=True)\n",
@@ -98,6 +99,7 @@
    ],
    "source": [
     "from IPython.display import Image\n",
+    "\n",
     "Image('./jupyter.png')"
    ]
   },
@@ -134,7 +136,9 @@
    ],
    "source": [
     "from IPython.display import Latex\n",
-    "Latex('''The mass-energy equivalence is described by the famous equation\n",
+    "\n",
+    "Latex(\n",
+    "    '''The mass-energy equivalence is described by the famous equation\n",
     " \n",
     "$$E=mc^2$$\n",
     " \n",
@@ -143,7 +147,8 @@
     " \n",
     "\\\\begin{equation}\n",
     "E=m\n",
-    "\\\\end{equation}''')"
+    "\\\\end{equation}'''\n",
+    ")"
    ]
   },
   {
diff --git a/examples/app/example.spec.ts-snapshots/example-linux.png b/examples/app/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..c4b1fd02225f
Binary files /dev/null and b/examples/app/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/app/index.js b/examples/app/index.js
index 2ec6a57cc632..1963ccbb4ce8 100644
--- a/examples/app/index.js
+++ b/examples/app/index.js
@@ -24,16 +24,23 @@ const extensions = [
   import('@jupyterlab/console-extension'),
   import('@jupyterlab/csvviewer-extension'),
   import('@jupyterlab/docmanager-extension'),
+  import('@jupyterlab/documentsearch-extension'),
   import('@jupyterlab/filebrowser-extension'),
-  import('@jupyterlab/fileeditor-extension'),
+  import('@jupyterlab/fileeditor-extension').then(plugins =>
+    plugins.default.filter(({ id }) => !id.includes(':language-server'))
+  ),
   import('@jupyterlab/help-extension'),
   import('@jupyterlab/imageviewer-extension'),
   import('@jupyterlab/inspector-extension'),
   import('@jupyterlab/launcher-extension'),
   import('@jupyterlab/mainmenu-extension'),
   import('@jupyterlab/markdownviewer-extension'),
-  import('@jupyterlab/mathjax2-extension'),
-  import('@jupyterlab/notebook-extension'),
+  import('@jupyterlab/markedparser-extension'),
+  import('@jupyterlab/mathjax-extension'),
+  import('@jupyterlab/metadataform-extension'),
+  import('@jupyterlab/notebook-extension').then(plugins =>
+    plugins.default.filter(({ id }) => !id.includes(':language-server'))
+  ),
   import('@jupyterlab/rendermime-extension'),
   import('@jupyterlab/running-extension'),
   import('@jupyterlab/settingeditor-extension'),
diff --git a/examples/app/main.py b/examples/app/main.py
index 6ddb6dfe3bf9..d18552c517c9 100644
--- a/examples/app/main.py
+++ b/examples/app/main.py
@@ -21,7 +21,6 @@ def _jupyter_server_extension_points():
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/lab"
     default_url = "/lab"
     name = __name__
diff --git a/examples/app/package.json b/examples/app/package.json
index 860b60995c77..0f156e6d8cea 100644
--- a/examples/app/package.json
+++ b/examples/app/package.json
@@ -1,64 +1,58 @@
 {
   "name": "@jupyterlab/example-app",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/application-extension": "^3.6.6",
-    "@jupyterlab/apputils-extension": "^3.6.6",
-    "@jupyterlab/builder": "^3.6.6",
-    "@jupyterlab/celltags-extension": "^3.6.6",
-    "@jupyterlab/codemirror-extension": "^3.6.6",
-    "@jupyterlab/completer-extension": "^3.6.6",
-    "@jupyterlab/console-extension": "^3.6.6",
-    "@jupyterlab/csvviewer-extension": "^3.6.6",
-    "@jupyterlab/docmanager-extension": "^3.6.6",
-    "@jupyterlab/filebrowser-extension": "^3.6.6",
-    "@jupyterlab/fileeditor-extension": "^3.6.6",
-    "@jupyterlab/help-extension": "^3.6.6",
-    "@jupyterlab/imageviewer-extension": "^3.6.6",
-    "@jupyterlab/inspector-extension": "^3.6.6",
-    "@jupyterlab/launcher-extension": "^3.6.6",
-    "@jupyterlab/mainmenu-extension": "^3.6.6",
-    "@jupyterlab/markdownviewer-extension": "^3.6.6",
-    "@jupyterlab/mathjax2-extension": "^3.6.6",
-    "@jupyterlab/notebook-extension": "^3.6.6",
-    "@jupyterlab/rendermime-extension": "^3.6.6",
-    "@jupyterlab/running-extension": "^3.6.6",
-    "@jupyterlab/settingeditor-extension": "^3.6.6",
-    "@jupyterlab/shortcuts-extension": "^3.6.6",
-    "@jupyterlab/statusbar-extension": "^3.6.6",
-    "@jupyterlab/theme-dark-extension": "^3.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/toc-extension": "^5.6.6",
-    "@jupyterlab/tooltip-extension": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/translation-extension": "^3.6.6",
-    "@jupyterlab/ui-components-extension": "^3.6.6",
-    "es6-promise": "~4.2.8",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/application-extension": "^4.0.8",
+    "@jupyterlab/apputils-extension": "^4.0.8",
+    "@jupyterlab/builder": "^4.0.8",
+    "@jupyterlab/celltags-extension": "^4.0.8",
+    "@jupyterlab/codemirror-extension": "^4.0.8",
+    "@jupyterlab/completer-extension": "^4.0.8",
+    "@jupyterlab/console-extension": "^4.0.8",
+    "@jupyterlab/csvviewer-extension": "^4.0.8",
+    "@jupyterlab/docmanager-extension": "^4.0.8",
+    "@jupyterlab/filebrowser-extension": "^4.0.8",
+    "@jupyterlab/fileeditor-extension": "^4.0.8",
+    "@jupyterlab/help-extension": "^4.0.8",
+    "@jupyterlab/imageviewer-extension": "^4.0.8",
+    "@jupyterlab/inspector-extension": "^4.0.8",
+    "@jupyterlab/launcher-extension": "^4.0.8",
+    "@jupyterlab/mainmenu-extension": "^4.0.8",
+    "@jupyterlab/markdownviewer-extension": "^4.0.8",
+    "@jupyterlab/mathjax-extension": "^4.0.8",
+    "@jupyterlab/metadataform-extension": "^4.0.8",
+    "@jupyterlab/notebook-extension": "^4.0.8",
+    "@jupyterlab/rendermime-extension": "^4.0.8",
+    "@jupyterlab/running-extension": "^4.0.8",
+    "@jupyterlab/settingeditor-extension": "^4.0.8",
+    "@jupyterlab/shortcuts-extension": "^4.0.8",
+    "@jupyterlab/statusbar-extension": "^4.0.8",
+    "@jupyterlab/theme-dark-extension": "^4.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/toc-extension": "^6.0.8",
+    "@jupyterlab/tooltip-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/translation-extension": "^4.0.8",
+    "@jupyterlab/ui-components-extension": "^4.0.8",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "css-loader": "^6.7.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
-    "read-package-tree": "^5.3.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "to-string-loader": "^1.1.6",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   },
   "jupyterlab": {
@@ -71,6 +65,7 @@
       "@jupyterlab/console-extension",
       "@jupyterlab/csvviewer-extension",
       "@jupyterlab/docmanager-extension",
+      "@jupyterlab/documentsearch-extension",
       "@jupyterlab/filebrowser-extension",
       "@jupyterlab/fileeditor-extension",
       "@jupyterlab/help-extension",
@@ -80,7 +75,8 @@
       "@jupyterlab/launcher-extension",
       "@jupyterlab/mainmenu-extension",
       "@jupyterlab/markdownviewer-extension",
-      "@jupyterlab/mathjax2-extension",
+      "@jupyterlab/mathjax-extension",
+      "@jupyterlab/metadataform-extension",
       "@jupyterlab/notebook-extension",
       "@jupyterlab/pdf-extension",
       "@jupyterlab/rendermime-extension",
diff --git a/examples/app/templates/index.html b/examples/app/templates/index.html
index 78301d684f70..11d8f23ef7a2 100644
--- a/examples/app/templates/index.html
+++ b/examples/app/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
diff --git a/examples/app/webpack.config.js b/examples/app/webpack.config.js
index 721e7b69891c..f5a1ed740cb7 100644
--- a/examples/app/webpack.config.js
+++ b/examples/app/webpack.config.js
@@ -3,19 +3,13 @@
 const data = require('./package.json');
 const webpack = require('webpack');
 const Build = require('@jupyterlab/builder').Build;
-const crypto = require('crypto');
-
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 // Generate webpack config to copy extension assets to the build directory,
 // such as setting schema files, theme assets, etc.
 const extensionAssetConfig = Build.ensureAssets({
   packageNames: data.jupyterlab.extensions,
-  output: './build',
-  hashFunction: 'sha256'
+  output: './build'
 });
 
 module.exports = [
@@ -31,30 +25,30 @@ module.exports = [
     module: {
       rules: [
         { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-        { test: /\.html$/, use: 'file-loader' },
-        { test: /\.md$/, use: 'raw-loader' },
-        { test: /\.(jpg|png|gif)$/, use: 'file-loader' },
-        { test: /\.js.map$/, use: 'file-loader' },
+        { test: /\.html$/, type: 'asset/resource' },
+        { test: /\.md$/, type: 'asset/source' },
+        { test: /\.(jpg|png|gif)$/, type: 'asset/resource' },
+        { test: /\.js.map$/, type: 'asset/resource' },
         {
           test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/font-woff'
+          type: 'asset'
         },
         {
           test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/font-woff'
+          type: 'asset'
         },
         {
           test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/octet-stream'
+          type: 'asset'
         },
-        { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, use: 'file-loader' },
+        { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, type: 'asset/resource' },
         {
           // In .css files, svg is loaded as a data URI.
           test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
           issuer: /\.css$/,
-          use: {
-            loader: 'svg-url-loader',
-            options: { encoding: 'none', limit: 10000 }
+          type: 'asset/inline',
+          generator: {
+            dataUrl: content => miniSVGDataURI(content.toString())
           }
         },
         {
@@ -62,18 +56,14 @@ module.exports = [
           // must be loaded as a raw string instead of data URIs.
           test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
           issuer: /\.js$/,
-          use: {
-            loader: 'raw-loader'
-          }
+          type: 'asset/source'
         }
       ]
     },
     plugins: [
       new webpack.DefinePlugin({
-        // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-        'process.env': '{}',
         // Needed for various packages using cwd(), like the path polyfill
-        process: { cwd: () => '/' }
+        process: { cwd: () => '/', env: {} }
       })
     ]
   }
diff --git a/examples/cell/README.md b/examples/cell/README.md
new file mode 100644
index 000000000000..87fe5abe6c4e
--- /dev/null
+++ b/examples/cell/README.md
@@ -0,0 +1,6 @@
+# Code cell example
+
+This example demonstrates how to create an application allowing the user
+to interact with a single code cell.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
diff --git a/examples/cell/example.spec.ts-snapshots/example-linux.png b/examples/cell/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..949525fed9f1
Binary files /dev/null and b/examples/cell/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/cell/main.py b/examples/cell/main.py
index 89b9fe2c88fd..48194453d566 100644
--- a/examples/cell/main.py
+++ b/examples/cell/main.py
@@ -15,10 +15,7 @@
 import os
 
 from jupyter_server.base.handlers import JupyterHandler
-from jupyter_server.extension.handler import (
-    ExtensionHandlerJinjaMixin,
-    ExtensionHandlerMixin,
-)
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
 from jupyter_server.utils import url_path_join as ujoin
 from jupyterlab_server import LabServerApp
 
@@ -57,7 +54,6 @@ def get(self):
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
diff --git a/examples/cell/package.json b/examples/cell/package.json
index 6d584f96bd61..a3eaabaebf1c 100644
--- a/examples/cell/package.json
+++ b/examples/cell/package.json
@@ -1,39 +1,35 @@
 {
   "name": "@jupyterlab/example-cell",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "tsc -p src && webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/completer": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/examples/cell/src/index.ts b/examples/cell/src/index.ts
old mode 100755
new mode 100644
index d05db0a392ad..2d138f81bae9
--- a/examples/cell/src/index.ts
+++ b/examples/cell/src/index.ts
@@ -13,17 +13,35 @@ import '@jupyterlab/theme-light-extension/style/theme.css';
 import '@jupyterlab/completer/style/index.css';
 import '../index.css';
 
-import { SessionContext, Toolbar } from '@jupyterlab/apputils';
+import {
+  Toolbar as AppToolbar,
+  SessionContext,
+  SessionContextDialogs
+} from '@jupyterlab/apputils';
+import {
+  refreshIcon,
+  stopIcon,
+  Toolbar,
+  ToolbarButton
+} from '@jupyterlab/ui-components';
 
-import { CodeCell, CodeCellModel } from '@jupyterlab/cells';
+import { Cell, CodeCell, CodeCellModel } from '@jupyterlab/cells';
 
-import { CodeMirrorMimeTypeService } from '@jupyterlab/codemirror';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  EditorThemeRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
 
 import {
   Completer,
   CompleterModel,
   CompletionHandler,
-  KernelConnector
+  KernelCompleterProvider,
+  ProviderReconciliator
 } from '@jupyterlab/completer';
 
 import {
@@ -37,6 +55,8 @@ import {
   SessionManager
 } from '@jupyterlab/services';
 
+import { IYText } from '@jupyter/ydoc';
+
 import { CommandRegistry } from '@lumino/commands';
 
 import { BoxPanel, Widget } from '@lumino/widgets';
@@ -50,7 +70,46 @@ function main(): void {
     specsManager,
     name: 'Example'
   });
-  const mimeService = new CodeMirrorMimeTypeService();
+  const editorExtensions = () => {
+    const themes = new EditorThemeRegistry();
+    EditorThemeRegistry.getDefaultThemes().forEach(theme => {
+      themes.addTheme(theme);
+    });
+    const registry = new EditorExtensionRegistry();
+
+    EditorExtensionRegistry.getDefaultExtensions({ themes }).forEach(
+      extensionFactory => {
+        registry.addExtension(extensionFactory);
+      }
+    );
+    registry.addExtension({
+      name: 'shared-model-binding',
+      factory: options => {
+        const sharedModel = options.model.sharedModel as IYText;
+        return EditorExtensionRegistry.createImmutableExtension(
+          ybinding({
+            ytext: sharedModel.ysource,
+            undoManager: sharedModel.undoManager ?? undefined
+          })
+        );
+      }
+    });
+    return registry;
+  };
+  const languages = new EditorLanguageRegistry();
+  EditorLanguageRegistry.getDefaultLanguages()
+    .filter(language =>
+      ['ipython', 'julia', 'python'].includes(language.name.toLowerCase())
+    )
+    .forEach(language => {
+      languages.addLanguage(language);
+    });
+
+  const factoryService = new CodeMirrorEditorFactory({
+    extensions: editorExtensions(),
+    languages
+  });
+  const mimeService = new CodeMirrorMimeTypeService(languages);
 
   // Initialize the command registry with the bindings.
   const commands = new CommandRegistry();
@@ -69,15 +128,22 @@ function main(): void {
   const rendermime = new RenderMimeRegistry({ initialFactories });
 
   const cellWidget = new CodeCell({
+    contentFactory: new Cell.ContentFactory({
+      editorFactory: factoryService.newInlineEditor.bind(factoryService)
+    }),
     rendermime,
-    model: new CodeCellModel({})
+    model: new CodeCellModel()
   }).initializeState();
 
   // Handle the mimeType for the current kernel asynchronously.
   sessionContext.kernelChanged.connect(() => {
     void sessionContext.session?.kernel?.info.then(info => {
       const lang = info.language_info;
-      const mimeType = mimeService.getMimeTypeByLanguage(lang);
+      const mimeTypes = mimeService.getMimeTypeByLanguage(lang);
+      const mimeType =
+        Array.isArray(mimeTypes) && mimeTypes.length !== 0
+          ? mimeTypes[0]
+          : mimeTypes;
       cellWidget.model.mimeType = mimeType;
     });
   });
@@ -89,13 +155,22 @@ function main(): void {
   const editor = cellWidget.editor;
   const model = new CompleterModel();
   const completer = new Completer({ editor, model });
-  const connector = new KernelConnector({ session: sessionContext.session });
-  const handler = new CompletionHandler({ completer, connector });
+  const timeout = 1000;
+  const provider = new KernelCompleterProvider();
+  const reconciliator = new ProviderReconciliator({
+    context: { widget: cellWidget, editor, session: sessionContext.session },
+    providers: [provider],
+    timeout: timeout
+  });
+  const handler = new CompletionHandler({ completer, reconciliator });
 
   //sessionContext.session?.kernel.
   void sessionContext.ready.then(() => {
-    handler.connector = new KernelConnector({
-      session: sessionContext.session
+    const provider = new KernelCompleterProvider();
+    handler.reconciliator = new ProviderReconciliator({
+      context: { widget: cellWidget, editor, session: sessionContext.session },
+      providers: [provider],
+      timeout: timeout
     });
   });
 
@@ -109,10 +184,32 @@ function main(): void {
   // Create a toolbar for the cell.
   const toolbar = new Toolbar();
   toolbar.addItem('spacer', Toolbar.createSpacerItem());
-  toolbar.addItem('interrupt', Toolbar.createInterruptButton(sessionContext));
-  toolbar.addItem('restart', Toolbar.createRestartButton(sessionContext));
-  toolbar.addItem('name', Toolbar.createKernelNameItem(sessionContext));
-  toolbar.addItem('status', Toolbar.createKernelStatusItem(sessionContext));
+  toolbar.addItem(
+    'interrupt',
+    new ToolbarButton({
+      icon: stopIcon,
+      onClick: () => {
+        void sessionContext.session?.kernel?.interrupt();
+      },
+      tooltip: 'Interrupt the kernel'
+    })
+  );
+  const dialogs = new SessionContextDialogs();
+  toolbar.addItem(
+    'restart',
+    new ToolbarButton({
+      icon: refreshIcon,
+      onClick: () => {
+        void dialogs.restart(sessionContext);
+      },
+      tooltip: 'Restart the kernel'
+    })
+  );
+  toolbar.addItem(
+    'name',
+    AppToolbar.createKernelNameItem(sessionContext, dialogs)
+  );
+  toolbar.addItem('status', AppToolbar.createKernelStatusItem(sessionContext));
 
   // Lay out the widgets.
   const panel = new BoxPanel();
diff --git a/examples/cell/templates/index.html b/examples/cell/templates/index.html
index 7cdf0c57b11d..46c23e57284c 100644
--- a/examples/cell/templates/index.html
+++ b/examples/cell/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
@@ -5,10 +10,10 @@
 
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/examples/cell/webpack.config.js b/examples/cell/webpack.config.js
index 854faadb05be..a426283ce87e 100644
--- a/examples/cell/webpack.config.js
+++ b/examples/cell/webpack.config.js
@@ -1,17 +1,16 @@
-const webpack = require('webpack');
-const crypto = require('crypto');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const webpack = require('webpack');
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 module.exports = {
   entry: ['whatwg-fetch', './build/index.js'],
   output: {
     path: __dirname + '/build',
-    filename: 'bundle.js',
-    hashFunction: 'sha256'
+    filename: 'bundle.js'
   },
   bail: true,
   devtool: 'cheap-source-map',
@@ -19,16 +18,16 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.html$/, use: 'file-loader' },
-      { test: /\.md$/, use: 'raw-loader' },
-      { test: /\.js.map$/, use: 'file-loader' },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.md$/, type: 'asset/source' },
+      { test: /\.js.map$/, type: 'asset/resource' },
       {
         // In .css files, svg is loaded as a data URI.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.css$/,
-        use: {
-          loader: 'svg-url-loader',
-          options: { encoding: 'none', limit: 10000 }
+        type: 'asset',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
         }
       },
       {
@@ -36,22 +35,18 @@ module.exports = {
         // must be loaded as a raw string instead of data URIs.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.js$/,
-        use: {
-          loader: 'raw-loader'
-        }
+        type: 'asset/source'
       },
       {
         test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+        type: 'asset'
       }
     ]
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/examples/chrome-example-test.js b/examples/chrome-example-test.js
deleted file mode 100644
index f094f799a7d8..000000000000
--- a/examples/chrome-example-test.js
+++ /dev/null
@@ -1,75 +0,0 @@
-/**
- * A puppeteer test that launches an example app and makes sure
- * there are no console errors or uncaught errors prior to a sentinal
- * string being printed.
- */
-const puppeteer = require('puppeteer');
-const URL = process.argv[2];
-
-async function main() {
-  /* eslint-disable no-console */
-  console.info('Starting Chrome Headless');
-
-  const browser = await puppeteer.launch({
-    args: ['--no-sandbox']
-  });
-  const page = await browser.newPage();
-
-  let errored = false;
-
-  const handleMessage = async msg => {
-    const text = msg.text();
-    const url = msg.location().url ?? '';
-    if (msg.type() === 'error' && !url.includes('/api/me')) {
-      errored = true;
-    }
-    console.log(msg.type(), '>>', text);
-    const lower = text.toLowerCase();
-    if (lower === 'example started!' || lower === 'test complete!') {
-      await browser.close();
-      if (errored) {
-        console.error('\n\n***\nExample test failed!\n***\n\n');
-        process.exit(1);
-      }
-      console.info('Example test complete!');
-      return;
-    } else {
-      if (errored) {
-        console.error('\n\n***\nExample test failed!\n***\n\n');
-        process.exit(1);
-      }
-    }
-  };
-
-  function handleError(err) {
-    console.error(err);
-    errored = true;
-  }
-
-  page.on('console', handleMessage);
-  page.on('error', handleError);
-
-  console.info('Navigating to page:', URL);
-  await page.goto(URL);
-  console.info('Waiting for page to load…');
-
-  // Wait for the local file to redirect on notebook >= 6.0. Refs:
-  // https://jupyter-notebook.readthedocs.io/en/stable/changelog.html?highlight=redirect
-  // https://stackoverflow.com/q/46948489/425458
-  await page.waitForNavigation();
-
-  if ((await page.$('#jupyter-config-data')) === null) {
-    console.error('Error loading JupyterLab page:');
-    console.error((await page.content()).substring(0, 1000));
-  }
-  console.info('Page loaded');
-}
-
-// Stop the process if an error is raised in the async function.
-process.on('unhandledRejection', up => {
-  if (String(up).indexOf('Target closed') === -1) {
-    throw up;
-  }
-});
-
-main();
diff --git a/examples/console/README.md b/examples/console/README.md
new file mode 100644
index 000000000000..51ebe00c46c7
--- /dev/null
+++ b/examples/console/README.md
@@ -0,0 +1,5 @@
+# JupyterLab console example
+
+This example demonstrates how to create an application displaying a code console (similar to IPython console) and a list of commands.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
diff --git a/examples/console/example.spec.ts-snapshots/example-linux.png b/examples/console/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..18c7302b1a3f
Binary files /dev/null and b/examples/console/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/console/main.py b/examples/console/main.py
index b80d3a9b5a46..fd74668d5ac3 100644
--- a/examples/console/main.py
+++ b/examples/console/main.py
@@ -27,7 +27,6 @@ def _jupyter_server_extension_points():
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
diff --git a/examples/console/package.json b/examples/console/package.json
index b78aedb82425..dfd9f9458f49 100644
--- a/examples/console/package.json
+++ b/examples/console/package.json
@@ -1,37 +1,32 @@
 {
   "name": "@jupyterlab/example-console",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "tsc -p src && webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@types/codemirror": "^0.0.109",
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/examples/console/src/index.ts b/examples/console/src/index.ts
index 58a2d9573bdf..5923526d36ea 100644
--- a/examples/console/src/index.ts
+++ b/examples/console/src/index.ts
@@ -18,7 +18,14 @@ import { CommandPalette, SplitPanel, Widget } from '@lumino/widgets';
 
 import { ServiceManager } from '@jupyterlab/services';
 
-import { editorServices } from '@jupyterlab/codemirror';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  EditorThemeRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
 
 import { ConsolePanel } from '@jupyterlab/console';
 
@@ -33,6 +40,8 @@ import {
   TranslationManager
 } from '@jupyterlab/translation';
 
+import { IYText } from '@jupyter/ydoc';
+
 async function main(): Promise<any> {
   const translator = new TranslationManager();
   await translator.fetch('en');
@@ -84,14 +93,55 @@ function startApp(
 
   const rendermime = new RenderMimeRegistry({ initialFactories });
 
-  const editorFactory = editorServices.factoryService.newInlineEditor;
+  const editorExtensions = () => {
+    const themes = new EditorThemeRegistry();
+    EditorThemeRegistry.getDefaultThemes().forEach(theme => {
+      themes.addTheme(theme);
+    });
+    const registry = new EditorExtensionRegistry();
+
+    EditorExtensionRegistry.getDefaultExtensions({ themes }).forEach(
+      extensionFactory => {
+        registry.addExtension(extensionFactory);
+      }
+    );
+    registry.addExtension({
+      name: 'shared-model-binding',
+      factory: options => {
+        const sharedModel = options.model.sharedModel as IYText;
+        return EditorExtensionRegistry.createImmutableExtension(
+          ybinding({
+            ytext: sharedModel.ysource,
+            undoManager: sharedModel.undoManager ?? undefined
+          })
+        );
+      }
+    });
+    return registry;
+  };
+
+  const languages = new EditorLanguageRegistry();
+  EditorLanguageRegistry.getDefaultLanguages()
+    .filter(language =>
+      ['ipython', 'julia', 'python'].includes(language.name.toLowerCase())
+    )
+    .forEach(language => {
+      languages.addLanguage(language);
+    });
+  const factoryService = new CodeMirrorEditorFactory({
+    extensions: editorExtensions(),
+    languages
+  });
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
+  const editorFactory = factoryService.newInlineEditor;
   const contentFactory = new ConsolePanel.ContentFactory({ editorFactory });
+
   const consolePanel = new ConsolePanel({
     rendermime,
     manager,
     path,
     contentFactory,
-    mimeTypeService: editorServices.mimeTypeService
+    mimeTypeService
   });
   consolePanel.title.label = trans.__('Console');
 
diff --git a/examples/console/templates/index.html b/examples/console/templates/index.html
index 7cdf0c57b11d..46c23e57284c 100644
--- a/examples/console/templates/index.html
+++ b/examples/console/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
@@ -5,10 +10,10 @@
 
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/examples/console/test.ipynb b/examples/console/test.ipynb
index 13e846cb456c..2862792f615d 100644
--- a/examples/console/test.ipynb
+++ b/examples/console/test.ipynb
@@ -35,6 +35,7 @@
    ],
    "source": [
     "import sys\n",
+    "\n",
     "print('hello world', flush=True)\n",
     "for i in range(3):\n",
     "    print(i, flush=True)\n",
@@ -98,6 +99,7 @@
    ],
    "source": [
     "from IPython.display import Image\n",
+    "\n",
     "Image('./jupyter.png')"
    ]
   },
@@ -134,7 +136,9 @@
    ],
    "source": [
     "from IPython.display import Latex\n",
-    "Latex('''The mass-energy equivalence is described by the famous equation\n",
+    "\n",
+    "Latex(\n",
+    "    '''The mass-energy equivalence is described by the famous equation\n",
     " \n",
     "$$E=mc^2$$\n",
     " \n",
@@ -143,7 +147,8 @@
     " \n",
     "\\\\begin{equation}\n",
     "E=m\n",
-    "\\\\end{equation}''')"
+    "\\\\end{equation}'''\n",
+    ")"
    ]
   },
   {
diff --git a/examples/console/webpack.config.js b/examples/console/webpack.config.js
index 854faadb05be..dc0ff125e7e8 100644
--- a/examples/console/webpack.config.js
+++ b/examples/console/webpack.config.js
@@ -1,17 +1,16 @@
-const webpack = require('webpack');
-const crypto = require('crypto');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const webpack = require('webpack');
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 module.exports = {
   entry: ['whatwg-fetch', './build/index.js'],
   output: {
     path: __dirname + '/build',
-    filename: 'bundle.js',
-    hashFunction: 'sha256'
+    filename: 'bundle.js'
   },
   bail: true,
   devtool: 'cheap-source-map',
@@ -19,16 +18,16 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.html$/, use: 'file-loader' },
-      { test: /\.md$/, use: 'raw-loader' },
-      { test: /\.js.map$/, use: 'file-loader' },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.md$/, type: 'asset/source' },
+      { test: /\.js.map$/, type: 'asset/resource' },
       {
         // In .css files, svg is loaded as a data URI.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.css$/,
-        use: {
-          loader: 'svg-url-loader',
-          options: { encoding: 'none', limit: 10000 }
+        type: 'asset/inline',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
         }
       },
       {
@@ -36,22 +35,18 @@ module.exports = {
         // must be loaded as a raw string instead of data URIs.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.js$/,
-        use: {
-          loader: 'raw-loader'
-        }
+        type: 'asset/source'
       },
       {
         test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+        type: 'asset'
       }
     ]
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/examples/example.spec.ts b/examples/example.spec.ts
new file mode 100644
index 000000000000..5b7a45de2ecc
--- /dev/null
+++ b/examples/example.spec.ts
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ConsoleMessage, expect, test } from '@playwright/test';
+
+const URL = `${process.env['BASE_URL']}`;
+
+test.setTimeout(120000);
+
+test('should load the example', async ({ page }) => {
+  console.info('Navigating to page:', URL);
+
+  let errorLogs = 0;
+  let testEnded: (value: string | PromiseLike<string>) => void;
+  const waitForTestEnd = new Promise<string>(resolve => {
+    testEnded = resolve;
+  });
+
+  const handleMessage = async (msg: ConsoleMessage) => {
+    const text = msg.text();
+    console.log(msg.type(), '>>', text);
+
+    if (msg.type() === 'error') {
+      errorLogs += 1;
+    }
+
+    const lower = text.toLowerCase();
+    if (lower === 'example started!' || lower === 'test complete!') {
+      testEnded(text);
+    }
+  };
+
+  page.on('console', handleMessage);
+
+  await page.goto(URL);
+
+  // Wait for the local file to redirect on notebook >= 6.0. Refs:
+  // https://jupyter-notebook.readthedocs.io/en/stable/changelog.html?highlight=redirect
+  // https://stackoverflow.com/q/46948489/425458
+  await page.waitForURL('http://**');
+
+  await expect.soft(page.locator('#jupyter-config-data')).toHaveCount(1);
+
+  await waitForTestEnd;
+
+  if (process.env['TEST_SNAPSHOT'] === '1') {
+    await page.waitForLoadState('networkidle');
+    await page.waitForTimeout(1000);
+    expect
+      .soft(
+        await page.screenshot({
+          mask: [page.locator('.jp-DirListing-itemModified')]
+        })
+      )
+      .toMatchSnapshot('example.png');
+  }
+
+  expect(errorLogs).toEqual(0);
+});
diff --git a/examples/example_check.py b/examples/example_check.py
index 411fa9901f45..2972964f5748 100644
--- a/examples/example_check.py
+++ b/examples/example_check.py
@@ -1,35 +1,33 @@
-# -*- coding: utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 """
 This file is mean to be called with a path to an example directory as
 its argument.  We import the application entry point for the example
-and add instrument them with a puppeteer test that makes sure
+and add instrument them with a Playwright test that makes sure
 there are no console errors or uncaught errors prior to a sentinel
 string being printed.
 
 e.g. python example_check.py ./app
 """
 import importlib.util
-import logging
 import os
 import shutil
-import subprocess
 import sys
-from os import path as osp
-
-from jupyter_server.serverapp import ServerApp
-from tornado.ioloop import IOLoop
-from traitlets import Bool, Dict, Unicode
+from pathlib import Path
 
 from jupyterlab.browser_check import run_async_process, run_test
 from jupyterlab.labapp import get_app_dir
 
-here = osp.abspath(osp.dirname(__file__))
+here = Path(__file__).parent.resolve()
+TEST_FILE = here / "example.spec.ts"
+REF_SNAPSHOT = Path(TEST_FILE.with_suffix('.ts-snapshots').name) / "example-linux.png"
 
 
 def main():
     # Load the main file and grab the example class so we can subclass
-    example_dir = sys.argv.pop()
-    mod_path = osp.abspath(osp.join(example_dir, "main.py"))
+    example_dir = Path(sys.argv[-1])
+    mod_path = (example_dir / "main.py").resolve()
     spec = importlib.util.spec_from_file_location("example", mod_path)
     mod = importlib.util.module_from_spec(spec)
     spec.loader.exec_module(mod)
@@ -45,8 +43,8 @@ class App(mod.ExampleApp):
 
         serverapp_config = {
             "base_url": "/foo/",
-            "root_dir": osp.abspath(example_dir),
-            "preferred_dir": osp.abspath(example_dir),
+            "root_dir": str(example_dir.resolve()),
+            "preferred_dir": str(example_dir.resolve()),
         }
         ip = "127.0.0.1"
 
@@ -59,23 +57,54 @@ def _jupyter_server_extension_points():
 
         mod._jupyter_server_extension_points = _jupyter_server_extension_points
 
-    App.__name__ = osp.basename(example_dir).capitalize() + "Test"
+    App.__name__ = example_dir.name.capitalize() + "Test"
     App.launch_instance()
 
 
 async def run_browser(url):
     """Run the browser test and return an exit code."""
     # Run the browser test and return an exit code.
-    target = osp.join(get_app_dir(), "example_test")
-    if not osp.exists(osp.join(target, "node_modules")):
-        if not osp.exists(target):
-            os.makedirs(osp.join(target))
-        await run_async_process(["npm", "init", "-y"], cwd=target)
-        await run_async_process(["npm", "install", "puppeteer@^19"], cwd=target)
+    target = Path(get_app_dir()) / "example_test"
+    if not (target / "node_modules").exists():
+        if not target.exists():
+            target.mkdir(parents=True, exist_ok=True)
+        await run_async_process(["npm", "init", "-y"], cwd=str(target))
+        await run_async_process(["npm", "install", "-D", "@playwright/test@^1"], cwd=str(target))
+        await run_async_process(["npx", "playwright", "install", "chromium"], cwd=str(target))
+    test_target = target / TEST_FILE.name
+
+    # Copy test file
     shutil.copy(
-        osp.join(here, "chrome-example-test.js"), osp.join(target, "chrome-example-test.js")
+        str(TEST_FILE),
+        str(test_target),
     )
-    await run_async_process(["node", "chrome-example-test.js", url], cwd=target)
+    # Copy reference snapshot
+    example_dir = Path(sys.argv[-1])
+    snapshot = example_dir / REF_SNAPSHOT
+    has_snapshot = False
+    if snapshot.exists():
+        has_snapshot = True
+        snapshot_target = target / REF_SNAPSHOT
+        snapshot_target.parent.mkdir(exist_ok=True)
+        shutil.copy(str(snapshot), str(snapshot_target))
+
+    results_target = target / "test-results"
+    dst = example_dir / results_target.name
+    # Force creation of the results folder as it may be listed in the filebrowser to avoid
+    # snapshots discrepancy
+    dst.mkdir(exist_ok=True)
+
+    current_env = os.environ.copy()
+    current_env["BASE_URL"] = url
+    current_env["TEST_SNAPSHOT"] = '1' if has_snapshot else '0'
+    try:
+        await run_async_process(["npx", "playwright", "test"], env=current_env, cwd=str(target))
+    finally:
+        # Copy back test-results folder to analyze snapshot error
+        if results_target.exists():
+            if dst.exists():
+                shutil.rmtree(dst)
+            shutil.copytree(str(results_target), str(dst))
 
 
 if __name__ == "__main__":
diff --git a/examples/federated/README.md b/examples/federated/README.md
new file mode 100644
index 000000000000..4bff1fc3301e
--- /dev/null
+++ b/examples/federated/README.md
@@ -0,0 +1,9 @@
+# JupyterLab federated application example
+
+This example demonstrates how to create a JupyterLab application remix by
+combining existing core packages with custom packages combined through Webpack
+module federation mechanism.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
+
+<figcaption>Pink rectangles mask transient data.</figcaption>
diff --git a/examples/federated/core_package/bootstrap.js b/examples/federated/core_package/bootstrap.js
index 1f8cb3a2cd30..7b2029755b18 100644
--- a/examples/federated/core_package/bootstrap.js
+++ b/examples/federated/core_package/bootstrap.js
@@ -3,6 +3,8 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+/* global __webpack_init_sharing__ __webpack_share_scopes__ */
+
 // We copy some of the pageconfig parsing logic in @jupyterlab/coreutils
 // below, since this must run before any other files are loaded (including
 // @jupyterlab/coreutils).
@@ -40,26 +42,6 @@ function getOption(name) {
 // eslint-disable-next-line no-undef
 __webpack_public_path__ = getOption('fullStaticUrl') + '/';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise.then(
-          value => ({
-            status: 'fulfilled',
-            value
-          }),
-          reason => ({
-            status: 'rejected',
-            reason
-          })
-        )
-      )
-    );
-}
-
 function loadScript(url) {
   return new Promise((resolve, reject) => {
     const newScript = document.createElement('script');
diff --git a/examples/federated/core_package/index.template.js b/examples/federated/core_package/index.template.js
index 15f57373ea69..7274917eeae2 100644
--- a/examples/federated/core_package/index.template.js
+++ b/examples/federated/core_package/index.template.js
@@ -4,30 +4,18 @@
 import { JupyterLab } from '@jupyterlab/application';
 import { PageConfig } from '@jupyterlab/coreutils';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise
-          .then(value => ({
-            status: "fulfilled",
-            value,
-          }), reason => ({
-            status: "rejected",
-            reason,
-          }))
-      )
-    );
-}
-
 import('./style.js');
 
+const TO_DISABLE = [
+  '@jupyterlab/lsp-extension',
+  '@jupyterlab/fileeditor-extension:language-server',
+  '@jupyterlab/notebook-extension:language-server'
+];
+
 async function createModule(scope, module) {
   try {
     const factory = await window._JUPYTERLAB[scope].get(module);
-    return factory();  
+    return factory();
   } catch(e) {
     console.warn(`Failed to create module: package: ${scope}; module: ${module}`);
     throw e;
@@ -70,9 +58,14 @@ export async function main() {
     }
   });
 
+
+  function manuallyDisabled(id) {
+    return TO_DISABLE.includes(id) || TO_DISABLE.includes(id.split(":")[0])
+  }
+
   /**
    * Iterate over active plugins in an extension.
-   * 
+   *
    * #### Notes
    * This also populates the disabled, deferred, and ignored arrays.
    */
@@ -88,7 +81,10 @@ export async function main() {
 
     let plugins = Array.isArray(exports) ? exports : [exports];
     for (let plugin of plugins) {
-      if (PageConfig.Extension.isDisabled(plugin.id)) {
+      if (
+        PageConfig.Extension.isDisabled(plugin.id) ||
+        manuallyDisabled(plugin.id)
+      ) {
         disabled.push(plugin.id);
         continue;
       }
diff --git a/examples/federated/core_package/package.json b/examples/federated/core_package/package.json
index 8cf46ea43b06..19b3ead1ebae 100644
--- a/examples/federated/core_package/package.json
+++ b/examples/federated/core_package/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/example-federated-core",
-  "version": "2.7.6",
+  "version": "3.0.8",
   "private": true,
   "scripts": {
     "build": "npm run clean && webpack",
@@ -8,169 +8,150 @@
     "watch": "npm run clean && webpack --watch"
   },
   "resolutions": {
-    "@jupyterlab/application": "^3.6.0-rc.0",
-    "@jupyterlab/application-extension": "^3.6.0-rc.0",
-    "@jupyterlab/apputils": "^3.6.0-rc.0",
-    "@jupyterlab/apputils-extension": "^3.6.0-rc.0",
-    "@jupyterlab/attachments": "^3.6.0-rc.0",
-    "@jupyterlab/cells": "^3.6.0-rc.0",
-    "@jupyterlab/celltags": "^3.6.0-rc.0",
-    "@jupyterlab/celltags-extension": "^3.6.0-rc.0",
-    "@jupyterlab/codeeditor": "^3.6.0-rc.0",
-    "@jupyterlab/codemirror": "^3.6.0-rc.0",
-    "@jupyterlab/codemirror-extension": "^3.6.0-rc.0",
-    "@jupyterlab/collaboration": "^3.6.0-rc.0",
-    "@jupyterlab/collaboration-extension": "^3.6.0-rc.0",
-    "@jupyterlab/completer": "^3.6.0-rc.0",
-    "@jupyterlab/completer-extension": "^3.6.0-rc.0",
-    "@jupyterlab/console": "^3.6.0-rc.0",
-    "@jupyterlab/console-extension": "^3.6.0-rc.0",
-    "@jupyterlab/coreutils": "^5.6.0-rc.0",
-    "@jupyterlab/csvviewer": "^3.6.0-rc.0",
-    "@jupyterlab/csvviewer-extension": "^3.6.0-rc.0",
-    "@jupyterlab/debugger": "^3.6.0-rc.0",
-    "@jupyterlab/debugger-extension": "^3.6.0-rc.0",
-    "@jupyterlab/docmanager": "^3.6.0-rc.0",
-    "@jupyterlab/docmanager-extension": "^3.6.0-rc.0",
-    "@jupyterlab/docregistry": "^3.6.0-rc.0",
-    "@jupyterlab/documentsearch": "^3.6.0-rc.0",
-    "@jupyterlab/documentsearch-extension": "^3.6.0-rc.0",
-    "@jupyterlab/extensionmanager": "^3.6.0-rc.0",
-    "@jupyterlab/extensionmanager-extension": "^3.6.0-rc.0",
-    "@jupyterlab/filebrowser": "^3.6.0-rc.0",
-    "@jupyterlab/filebrowser-extension": "^3.6.0-rc.0",
-    "@jupyterlab/fileeditor": "^3.6.0-rc.0",
-    "@jupyterlab/fileeditor-extension": "^3.6.0-rc.0",
-    "@jupyterlab/help-extension": "^3.6.0-rc.0",
-    "@jupyterlab/htmlviewer": "^3.6.0-rc.0",
-    "@jupyterlab/htmlviewer-extension": "^3.6.0-rc.0",
-    "@jupyterlab/hub-extension": "^3.6.0-rc.0",
-    "@jupyterlab/imageviewer": "^3.6.0-rc.0",
-    "@jupyterlab/imageviewer-extension": "^3.6.0-rc.0",
-    "@jupyterlab/inspector": "^3.6.0-rc.0",
-    "@jupyterlab/inspector-extension": "^3.6.0-rc.0",
-    "@jupyterlab/javascript-extension": "^3.6.0-rc.0",
-    "@jupyterlab/json-extension": "^3.6.0-rc.0",
-    "@jupyterlab/launcher": "^3.6.0-rc.0",
-    "@jupyterlab/launcher-extension": "^3.6.0-rc.0",
-    "@jupyterlab/logconsole": "^3.6.0-rc.0",
-    "@jupyterlab/logconsole-extension": "^3.6.0-rc.0",
-    "@jupyterlab/mainmenu": "^3.6.0-rc.0",
-    "@jupyterlab/mainmenu-extension": "^3.6.0-rc.0",
-    "@jupyterlab/mathjax2": "^3.6.0-rc.0",
-    "@jupyterlab/mathjax2-extension": "^3.6.0-rc.0",
-    "@jupyterlab/metapackage": "^3.6.0-rc.0",
-    "@jupyterlab/nbconvert-css": "^3.6.0-rc.0",
-    "@jupyterlab/nbformat": "^3.6.0-rc.0",
-    "@jupyterlab/notebook": "^3.6.0-rc.0",
-    "@jupyterlab/notebook-extension": "^3.6.0-rc.0",
-    "@jupyterlab/observables": "^4.6.0-rc.0",
-    "@jupyterlab/outputarea": "^3.6.0-rc.0",
-    "@jupyterlab/pdf-extension": "^3.6.0-rc.0",
-    "@jupyterlab/property-inspector": "^3.6.0-rc.0",
-    "@jupyterlab/rendermime": "^3.6.0-rc.0",
-    "@jupyterlab/rendermime-extension": "^3.6.0-rc.0",
-    "@jupyterlab/rendermime-interfaces": "^3.6.0-rc.0",
-    "@jupyterlab/running": "^3.6.0-rc.0",
-    "@jupyterlab/running-extension": "^3.6.0-rc.0",
-    "@jupyterlab/services": "~6.0.0-alpha.15",
-    "@jupyterlab/settingeditor": "^3.6.0-rc.0",
-    "@jupyterlab/settingeditor-extension": "^3.6.0-rc.0",
-    "@jupyterlab/settingregistry": "^3.6.0-rc.0",
-    "@jupyterlab/shortcuts-extension": "^3.6.0-rc.0",
-    "@jupyterlab/statedb": "^3.6.0-rc.0",
-    "@jupyterlab/statusbar": "^3.6.0-rc.0",
-    "@jupyterlab/statusbar-extension": "^3.6.0-rc.0",
-    "@jupyterlab/theme-dark-extension": "^3.6.0-rc.0",
-    "@jupyterlab/theme-light-extension": "^3.6.0-rc.0",
-    "@jupyterlab/toc": "^5.6.0-rc.0",
-    "@jupyterlab/toc-extension": "^5.6.0-rc.0",
-    "@jupyterlab/tooltip": "^3.6.0-rc.0",
-    "@jupyterlab/tooltip-extension": "^3.6.0-rc.0",
-    "@jupyterlab/translation": "^3.6.0-rc.0",
-    "@jupyterlab/translation-extension": "^3.6.0-rc.0",
-    "@jupyterlab/ui-components": "^3.6.0-rc.0",
-    "@jupyterlab/ui-components-extension": "^3.6.0-rc.0",
-    "@jupyterlab/vdom": "^3.6.0-rc.0",
-    "@jupyterlab/vdom-extension": "^3.6.0-rc.0",
-    "@jupyterlab/vega5-extension": "^3.6.0-rc.0",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/application": "^1.13.1",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1"
+    "@jupyterlab/application": "~4.0.8",
+    "@jupyterlab/application-extension": "~4.0.8",
+    "@jupyterlab/apputils": "^4.0.0-alpha.15",
+    "@jupyterlab/apputils-extension": "~4.0.8",
+    "@jupyterlab/attachments": "^4.0.0-alpha.15",
+    "@jupyterlab/cells": "~4.0.0-alpha.3",
+    "@jupyterlab/celltags-extension": "~4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.0-alpha.15",
+    "@jupyterlab/codemirror-extension": "~4.0.8",
+    "@jupyterlab/completer": "^4.0.0-alpha.15",
+    "@jupyterlab/completer-extension": "~4.0.8",
+    "@jupyterlab/console": "^4.0.0-alpha.15",
+    "@jupyterlab/console-extension": "~4.0.8",
+    "@jupyterlab/coreutils": "~6.0.8",
+    "@jupyterlab/csvviewer-extension": "~4.0.8",
+    "@jupyterlab/debugger": "^4.0.0-alpha.15",
+    "@jupyterlab/debugger-extension": "~4.0.8",
+    "@jupyterlab/docmanager": "^4.0.0-alpha.15",
+    "@jupyterlab/docmanager-extension": "~4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.0-alpha.15",
+    "@jupyterlab/documentsearch-extension": "~4.0.8",
+    "@jupyterlab/extensionmanager": "^4.0.0-alpha.15",
+    "@jupyterlab/extensionmanager-extension": "~4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.0-alpha.15",
+    "@jupyterlab/filebrowser-extension": "~4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.0-alpha.15",
+    "@jupyterlab/fileeditor-extension": "~4.0.8",
+    "@jupyterlab/help-extension": "~4.0.8",
+    "@jupyterlab/htmlviewer-extension": "~4.0.8",
+    "@jupyterlab/hub-extension": "~4.0.8",
+    "@jupyterlab/imageviewer": "^4.0.0-alpha.15",
+    "@jupyterlab/imageviewer-extension": "~4.0.8",
+    "@jupyterlab/inspector": "^4.0.0-alpha.15",
+    "@jupyterlab/inspector-extension": "~4.0.8",
+    "@jupyterlab/javascript-extension": "~4.0.8",
+    "@jupyterlab/json-extension": "~4.0.8",
+    "@jupyterlab/launcher": "^4.0.0-alpha.15",
+    "@jupyterlab/launcher-extension": "~4.0.8",
+    "@jupyterlab/logconsole": "^4.0.0-alpha.15",
+    "@jupyterlab/logconsole-extension": "~4.0.8",
+    "@jupyterlab/lsp": "^4.0.0-alpha.15",
+    "@jupyterlab/lsp-extension": "~4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.0-alpha.15",
+    "@jupyterlab/mainmenu-extension": "~4.0.8",
+    "@jupyterlab/markedparser-extension": "~4.0.0-alpha.15",
+    "@jupyterlab/mathjax-extension": "~4.0.8",
+    "@jupyterlab/metadataform": "^4.0.0-alpha.15",
+    "@jupyterlab/metadataform-extension": "~4.0.8",
+    "@jupyterlab/notebook": "^4.0.0-alpha.15",
+    "@jupyterlab/notebook-extension": "~4.0.8",
+    "@jupyterlab/pdf-extension": "~4.0.8",
+    "@jupyterlab/rendermime": "^4.0.0-alpha.15",
+    "@jupyterlab/rendermime-extension": "~4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.0-alpha.9",
+    "@jupyterlab/services": "^7.0.0-alpha.15",
+    "@jupyterlab/settingeditor": "^4.0.0-alpha.15",
+    "@jupyterlab/settingeditor-extension": "~4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.0-alpha.15",
+    "@jupyterlab/shortcuts-extension": "~4.0.8",
+    "@jupyterlab/statedb": "^4.0.0-alpha.15",
+    "@jupyterlab/statusbar": "^4.0.0-alpha.15",
+    "@jupyterlab/statusbar-extension": "~4.0.8",
+    "@jupyterlab/theme-light-extension": "~4.0.8",
+    "@jupyterlab/toc-extension": "~6.0.8",
+    "@jupyterlab/tooltip": "^4.0.0-alpha.15",
+    "@jupyterlab/tooltip-extension": "~4.0.8",
+    "@jupyterlab/translation": "~4.0.8",
+    "@jupyterlab/translation-extension": "~4.0.8",
+    "@jupyterlab/ui-components": "^4.0.0-alpha.17",
+    "@jupyterlab/ui-components-extension": "~4.0.8",
+    "@jupyterlab/vega5-extension": "~4.0.8",
+    "@lumino/algorithm": "^2.0.0",
+    "@lumino/application": "^2.0.1",
+    "@lumino/commands": "^2.0.1",
+    "@lumino/coreutils": "^2.0.0",
+    "@lumino/disposable": "^2.0.0",
+    "@lumino/domutils": "^2.0.0",
+    "@lumino/dragdrop": "^2.0.0",
+    "@lumino/messaging": "^2.0.0",
+    "@lumino/properties": "^2.0.0",
+    "@lumino/signaling": "^2.0.0",
+    "@lumino/virtualdom": "^2.0.0",
+    "@lumino/widgets": "^2.0.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "yjs": "^13.5.40"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/application-extension": "^3.6.6",
-    "@jupyterlab/apputils-extension": "^3.6.6",
-    "@jupyterlab/celltags-extension": "^3.6.6",
-    "@jupyterlab/codemirror-extension": "^3.6.6",
-    "@jupyterlab/collaboration-extension": "^3.6.6",
-    "@jupyterlab/completer-extension": "^3.6.6",
-    "@jupyterlab/console-extension": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/csvviewer-extension": "^3.6.6",
-    "@jupyterlab/docmanager-extension": "^3.6.6",
-    "@jupyterlab/documentsearch-extension": "^3.6.6",
-    "@jupyterlab/extensionmanager-extension": "^3.6.6",
-    "@jupyterlab/filebrowser-extension": "^3.6.6",
-    "@jupyterlab/fileeditor-extension": "^3.6.6",
-    "@jupyterlab/help-extension": "^3.6.6",
-    "@jupyterlab/htmlviewer-extension": "^3.6.6",
-    "@jupyterlab/hub-extension": "^3.6.6",
-    "@jupyterlab/imageviewer-extension": "^3.6.6",
-    "@jupyterlab/inspector-extension": "^3.6.6",
-    "@jupyterlab/javascript-extension": "^3.6.6",
-    "@jupyterlab/json-extension": "^3.6.6",
-    "@jupyterlab/launcher-extension": "^3.6.6",
-    "@jupyterlab/logconsole-extension": "^3.6.6",
-    "@jupyterlab/mainmenu-extension": "^3.6.6",
-    "@jupyterlab/mathjax2-extension": "^3.6.6",
-    "@jupyterlab/notebook-extension": "^3.6.6",
-    "@jupyterlab/pdf-extension": "^3.6.6",
-    "@jupyterlab/rendermime-extension": "^3.6.6",
-    "@jupyterlab/settingeditor-extension": "^3.6.6",
-    "@jupyterlab/shortcuts-extension": "^3.6.6",
-    "@jupyterlab/statusbar-extension": "^3.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/toc-extension": "^5.6.6",
-    "@jupyterlab/tooltip-extension": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/translation-extension": "^3.6.6",
-    "@jupyterlab/ui-components-extension": "^3.6.6",
-    "@jupyterlab/vdom-extension": "^3.6.6",
-    "@jupyterlab/vega5-extension": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/application-extension": "^4.0.8",
+    "@jupyterlab/apputils-extension": "^4.0.8",
+    "@jupyterlab/celltags-extension": "^4.0.8",
+    "@jupyterlab/codemirror-extension": "^4.0.8",
+    "@jupyterlab/completer-extension": "^4.0.8",
+    "@jupyterlab/console-extension": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/csvviewer-extension": "^4.0.8",
+    "@jupyterlab/debugger-extension": "^4.0.8",
+    "@jupyterlab/docmanager-extension": "^4.0.8",
+    "@jupyterlab/documentsearch-extension": "^4.0.8",
+    "@jupyterlab/extensionmanager-extension": "^4.0.8",
+    "@jupyterlab/filebrowser-extension": "^4.0.8",
+    "@jupyterlab/fileeditor-extension": "^4.0.8",
+    "@jupyterlab/help-extension": "^4.0.8",
+    "@jupyterlab/htmlviewer-extension": "^4.0.8",
+    "@jupyterlab/hub-extension": "^4.0.8",
+    "@jupyterlab/imageviewer-extension": "^4.0.8",
+    "@jupyterlab/inspector-extension": "^4.0.8",
+    "@jupyterlab/javascript-extension": "^4.0.8",
+    "@jupyterlab/json-extension": "^4.0.8",
+    "@jupyterlab/launcher-extension": "^4.0.8",
+    "@jupyterlab/logconsole-extension": "^4.0.8",
+    "@jupyterlab/lsp-extension": "^4.0.8",
+    "@jupyterlab/mainmenu-extension": "^4.0.8",
+    "@jupyterlab/mathjax-extension": "^4.0.8",
+    "@jupyterlab/metadataform-extension": "^4.0.8",
+    "@jupyterlab/notebook-extension": "^4.0.8",
+    "@jupyterlab/pdf-extension": "^4.0.8",
+    "@jupyterlab/rendermime-extension": "^4.0.8",
+    "@jupyterlab/settingeditor-extension": "^4.0.8",
+    "@jupyterlab/shortcuts-extension": "^4.0.8",
+    "@jupyterlab/statusbar-extension": "^4.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/toc-extension": "^6.0.8",
+    "@jupyterlab/tooltip-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/translation-extension": "^4.0.8",
+    "@jupyterlab/ui-components-extension": "^4.0.8",
+    "@jupyterlab/vega5-extension": "^4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
-    "copy-webpack-plugin": "^6.0.1",
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "@jupyterlab/builder": "^4.0.8",
+    "copy-webpack-plugin": "^11.0.0",
+    "css-loader": "^6.7.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
     "handlebars": "^4.5.3",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
-    "read-package-tree": "^5.3.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "to-string-loader": "^1.1.6",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
-    "webpack-merge": "^5.1.2",
+    "style-loader": "~3.3.1",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
+    "webpack-merge": "^5.8.0",
     "whatwg-fetch": "^3.0.0"
   },
   "jupyterlab": {
@@ -181,8 +162,8 @@
     "singletonPackages": [
       "@jupyterlab/application",
       "@jupyterlab/apputils",
+      "@jupyterlab/attachments",
       "@jupyterlab/codeeditor",
-      "@jupyterlab/collaboration",
       "@jupyterlab/completer",
       "@jupyterlab/console",
       "@jupyterlab/coreutils",
@@ -196,6 +177,7 @@
       "@jupyterlab/inspector",
       "@jupyterlab/launcher",
       "@jupyterlab/logconsole",
+      "@jupyterlab/lsp",
       "@jupyterlab/mainmenu",
       "@jupyterlab/notebook",
       "@jupyterlab/rendermime",
@@ -206,6 +188,7 @@
       "@jupyterlab/statedb",
       "@jupyterlab/statusbar",
       "@jupyterlab/tooltip",
+      "@jupyterlab/translation",
       "@jupyterlab/ui-components",
       "@lumino/algorithm",
       "@lumino/application",
@@ -220,7 +203,8 @@
       "@lumino/virtualdom",
       "@lumino/widgets",
       "react",
-      "react-dom"
+      "react-dom",
+      "yjs"
     ],
     "extensions": [
       "@jupyterlab/application-extension",
@@ -230,6 +214,7 @@
       "@jupyterlab/completer-extension",
       "@jupyterlab/console-extension",
       "@jupyterlab/csvviewer-extension",
+      "@jupyterlab/debugger-extension",
       "@jupyterlab/docmanager-extension",
       "@jupyterlab/documentsearch-extension",
       "@jupyterlab/extensionmanager-extension",
@@ -240,24 +225,25 @@
       "@jupyterlab/hub-extension",
       "@jupyterlab/imageviewer-extension",
       "@jupyterlab/inspector-extension",
+      "@jupyterlab/javascript-extension",
+      "@jupyterlab/json-extension",
       "@jupyterlab/launcher-extension",
       "@jupyterlab/logconsole-extension",
+      "@jupyterlab/lsp-extension",
       "@jupyterlab/mainmenu-extension",
-      "@jupyterlab/mathjax2-extension",
+      "@jupyterlab/mathjax-extension",
+      "@jupyterlab/metadataform-extension",
       "@jupyterlab/notebook-extension",
+      "@jupyterlab/pdf-extension",
       "@jupyterlab/rendermime-extension",
       "@jupyterlab/settingeditor-extension",
       "@jupyterlab/shortcuts-extension",
       "@jupyterlab/statusbar-extension",
       "@jupyterlab/theme-light-extension",
-      "@jupyterlab/theme-dark-extension",
+      "@jupyterlab/toc-extension",
       "@jupyterlab/tooltip-extension",
       "@jupyterlab/translation-extension",
       "@jupyterlab/ui-components-extension",
-      "@jupyterlab/vdom-extension",
-      "@jupyterlab/javascript-extension",
-      "@jupyterlab/json-extension",
-      "@jupyterlab/pdf-extension",
       "@jupyterlab/vega5-extension"
     ]
   }
diff --git a/examples/federated/example.cert b/examples/federated/example.cert
index d42471640785..6471ecf48c9e 100644
--- a/examples/federated/example.cert
+++ b/examples/federated/example.cert
@@ -1 +1 @@
-{"given": "My Name", "event": "Event"}
\ No newline at end of file
+{"given": "My Name", "event": "Event"}
diff --git a/examples/federated/example.spec.ts-snapshots/example-linux.png b/examples/federated/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..c5ffd941eaff
Binary files /dev/null and b/examples/federated/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/federated/md_package/index.js b/examples/federated/md_package/index.js
index 763ac29fa583..65fd9480ce01 100644
--- a/examples/federated/md_package/index.js
+++ b/examples/federated/md_package/index.js
@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 import { ILayoutRestorer } from '@jupyterlab/application';
@@ -46,7 +47,6 @@ const plugin = {
  * Activate the markdown viewer plugin.
  */
 function activate(app, restorer, rendermime, settingRegistry, middleToken) {
-  console.log(middleToken);
   const { commands, docRegistry } = app;
   // Add the markdown renderer factory.
   rendermime.addFactory(markdownRendererFactory);
diff --git a/examples/federated/md_package/mime.js b/examples/federated/md_package/mime.js
index 7f129794a39d..c858276c0a2f 100644
--- a/examples/federated/md_package/mime.js
+++ b/examples/federated/md_package/mime.js
@@ -1,3 +1,4 @@
+/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
diff --git a/examples/federated/md_package/package.json b/examples/federated/md_package/package.json
index 4ee1ae83923f..6feeafb184a1 100644
--- a/examples/federated/md_package/package.json
+++ b/examples/federated/md_package/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/example-federated-md",
-  "version": "2.7.6",
+  "version": "3.0.8",
   "private": true,
   "main": "./index.js",
   "scripts": {
@@ -8,13 +8,13 @@
     "clean": "rimraf ../labextensions/@jupyterlab/example-federated-md"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/example-federated-middle": "^2.7.6",
-    "@jupyterlab/markdownviewer-extension": "^3.6.6",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/example-federated-middle": "^3.0.8",
+    "@jupyterlab/markdownviewer-extension": "^4.0.8",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
+    "@jupyterlab/builder": "^4.0.8",
     "rimraf": "~3.0.0"
   },
   "jupyterlab": {
diff --git a/examples/federated/md_package/style/index.css b/examples/federated/md_package/style/index.css
index 6a25f88a0fc0..ab24a9af3098 100644
--- a/examples/federated/md_package/style/index.css
+++ b/examples/federated/md_package/style/index.css
@@ -5,8 +5,8 @@
 
 .mimerenderer-certificate > .certificate {
   background-color: #07618b;
-  border-radius: 20px 20px 20px 20px;
-  box-shadow: 0px 5px 10px 0px;
+  border-radius: 20px;
+  box-shadow: 0 5px 10px 0;
   height: 250px;
   margin-left: 35%;
   margin-top: 10%;
@@ -16,7 +16,7 @@
 
 .mimerenderer-certificate > .certificate > .paper {
   background: #e0e0e0;
-  border-radius: 5px 5px 5px 5px;
+  border-radius: 5px;
   height: 200px;
   left: 25px;
   position: absolute;
@@ -35,7 +35,7 @@
 
 .mimerenderer-certificate > .certificate > .paper > .text {
   margin-top: 20px;
-  padding: 0px;
+  padding: 0;
   text-align: center;
   z-index: 200;
 }
@@ -46,7 +46,7 @@
   font-size: 2em;
   height: 20px;
   left: 30px;
-  padding: 10px 10px 10px 10px;
+  padding: 10px;
   position: absolute;
   top: 30px;
   width: 20px;
diff --git a/examples/federated/middle_package/package.json b/examples/federated/middle_package/package.json
index 2173491c9af4..3d8b06cafe63 100644
--- a/examples/federated/middle_package/package.json
+++ b/examples/federated/middle_package/package.json
@@ -1,16 +1,16 @@
 {
   "name": "@jupyterlab/example-federated-middle",
-  "version": "2.7.6",
+  "version": "3.0.8",
   "private": true,
   "scripts": {
     "build": "npm run clean && build-labextension --core-path ../core_package .",
     "clean": "rimraf ../labextensions/@jupyterlab/example-federated-middle"
   },
   "dependencies": {
-    "@lumino/coreutils": "^1.11.0"
+    "@lumino/coreutils": "^2.1.2"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
+    "@jupyterlab/builder": "^4.0.8",
     "rimraf": "~3.0.0"
   },
   "publishConfig": {
diff --git a/examples/federated/package.json b/examples/federated/package.json
index 0b2be093a155..86ceac24658c 100644
--- a/examples/federated/package.json
+++ b/examples/federated/package.json
@@ -1,17 +1,15 @@
 {
   "name": "@jupyterlab/example-federated",
-  "version": "2.7.6",
+  "version": "3.0.8",
   "private": true,
   "scripts": {
-    "build": "npm run build:core && npm run build:middle && npm run build:md && npm run build:phosphor",
+    "build": "npm run build:core && npm run build:middle && npm run build:md",
     "build:core": "cd core_package && npm run build",
     "build:md": "cd md_package && npm run build",
     "build:middle": "cd middle_package && npm run build",
-    "build:phosphor": "cd phosphor_package && npm run build",
-    "install:all": "npm run install:core && npm run install:middle && npm run install:md && npm run install:phosphor",
+    "install:all": "npm run install:core && npm run install:middle && npm run install:md",
     "install:core": "cd core_package && npm install",
     "install:md": "cd md_package && npm install",
-    "install:middle": "cd middle_package && npm install",
-    "install:phosphor": "cd phosphor_package && npm install"
+    "install:middle": "cd middle_package && npm install"
   }
 }
diff --git a/examples/federated/phosphor_package/index.js b/examples/federated/phosphor_package/index.js
deleted file mode 100644
index a8841957ea20..000000000000
--- a/examples/federated/phosphor_package/index.js
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Widget } from '@phosphor/widgets';
-import { MainAreaWidget } from '@jupyterlab/apputils';
-
-const plugins = [
-  {
-    id: '@jupyterlab/example-federated-phosphor',
-    autoStart: true,
-    activate: function (app) {
-      const mywidget = new Widget();
-      mywidget.node.textContent = 'Phosphor extension';
-      mywidget.id = '@jupyterlab/example-federated-phosphor';
-      mywidget.title.label = 'Phosphor extension';
-      const appwidget = new MainAreaWidget({ content: mywidget });
-      app.restored.then(() => {
-        app.shell.add(appwidget);
-      });
-    }
-  }
-];
-
-export default plugins;
diff --git a/examples/federated/phosphor_package/package.json b/examples/federated/phosphor_package/package.json
deleted file mode 100644
index 2088d3127d7f..000000000000
--- a/examples/federated/phosphor_package/package.json
+++ /dev/null
@@ -1,24 +0,0 @@
-{
-  "name": "@jupyterlab/example-federated-phosphor",
-  "version": "2.7.6",
-  "private": true,
-  "scripts": {
-    "build": "npm run clean && build-labextension --core-path ../core_package .",
-    "clean": "rimraf ../labextensions/@jupyterlab/example-federated-phosphor"
-  },
-  "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@phosphor/coreutils": "^1.0.0"
-  },
-  "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
-    "rimraf": "~3.0.0"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "jupyterlab": {
-    "extension": true,
-    "outputDir": "../labextensions/@jupyterlab/example-federated-phosphor"
-  }
-}
diff --git a/examples/federated/templates/index.html b/examples/federated/templates/index.html
index b4c91257e23b..7d43fd0c0be5 100644
--- a/examples/federated/templates/index.html
+++ b/examples/federated/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
diff --git a/examples/filebrowser/README.md b/examples/filebrowser/README.md
new file mode 100644
index 000000000000..7f1564cbf90f
--- /dev/null
+++ b/examples/filebrowser/README.md
@@ -0,0 +1,7 @@
+# JupyterLab filebrowser example
+
+This example demonstrates how to create a filebrowser application.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
+
+<figcaption>Pink rectangles mask transient data.</figcaption>
diff --git a/examples/filebrowser/example.spec.ts-snapshots/example-linux.png b/examples/filebrowser/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..d09c6fa2062e
Binary files /dev/null and b/examples/filebrowser/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/filebrowser/main.py b/examples/filebrowser/main.py
index 67b5454c5caf..8b2ba3b5c995 100644
--- a/examples/filebrowser/main.py
+++ b/examples/filebrowser/main.py
@@ -27,7 +27,6 @@ def _jupyter_server_extension_points():
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
diff --git a/examples/filebrowser/package.json b/examples/filebrowser/package.json
index 8b5eca4ca455..3450011cfb7c 100644
--- a/examples/filebrowser/package.json
+++ b/examples/filebrowser/package.json
@@ -1,43 +1,36 @@
 {
   "name": "@jupyterlab/example-filebrowser",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "tsc -p src && webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@types/codemirror": "^0.0.109",
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/examples/filebrowser/src/index.ts b/examples/filebrowser/src/index.ts
index d27a1a1ac9e0..2c0f82ad71be 100644
--- a/examples/filebrowser/src/index.ts
+++ b/examples/filebrowser/src/index.ts
@@ -13,19 +13,18 @@ import '@jupyterlab/filebrowser/style/index.css';
 import '@jupyterlab/theme-light-extension/style/theme.css';
 import '../index.css';
 
-import { each } from '@lumino/algorithm';
-
 import { CommandRegistry } from '@lumino/commands';
 
 import { DockPanel, Menu, SplitPanel, Widget } from '@lumino/widgets';
 
 import { ServiceManager } from '@jupyterlab/services';
 
-import { Dialog, showDialog, ToolbarButton } from '@jupyterlab/apputils';
+import { Dialog, showDialog } from '@jupyterlab/apputils';
 
 import {
   CodeMirrorEditorFactory,
-  CodeMirrorMimeTypeService
+  CodeMirrorMimeTypeService,
+  EditorLanguageRegistry
 } from '@jupyterlab/codemirror';
 
 import { DocumentManager } from '@jupyterlab/docmanager';
@@ -42,7 +41,7 @@ import {
   TranslationManager
 } from '@jupyterlab/translation';
 
-import { addIcon } from '@jupyterlab/ui-components';
+import { addIcon, ToolbarButton } from '@jupyterlab/ui-components';
 
 const LANG = 'en';
 
@@ -79,6 +78,16 @@ function createApp(
         const index = widgets.indexOf(w);
         widgets.splice(index, 1);
       });
+    },
+    get opened() {
+      return {
+        connect: () => {
+          return false;
+        },
+        disconnect: () => {
+          return false;
+        }
+      };
     }
   };
 
@@ -88,9 +97,30 @@ function createApp(
     manager,
     opener
   });
+  const languages = new EditorLanguageRegistry();
+  EditorLanguageRegistry.getDefaultLanguages()
+    .filter(language =>
+      ['ipython', 'julia', 'python'].includes(language.name.toLowerCase())
+    )
+    .forEach(language => {
+      languages.addLanguage(language);
+    });
+  // Language for Markdown cells
+  languages.addLanguage({
+    name: 'ipythongfm',
+    mime: 'text/x-ipythongfm',
+    load: async () => {
+      const m = await import('@codemirror/lang-markdown');
+      return m.markdown({
+        codeLanguages: (info: string) => languages.findBest(info) as any
+      });
+    }
+  });
+  const factoryService = new CodeMirrorEditorFactory({ languages });
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
   const editorServices = {
-    factoryService: new CodeMirrorEditorFactory(),
-    mimeTypeService: new CodeMirrorMimeTypeService()
+    factoryService,
+    mimeTypeService
   };
   const wFactory = new FileEditorFactory({
     editorServices,
@@ -153,17 +183,17 @@ function createApp(
   // Add commands.
   commands.addCommand('file-open', {
     label: trans.__('Open'),
-    icon: 'fa fa-folder-open-o',
+    iconClass: 'fa fa-folder-open-o',
     mnemonic: 0,
     execute: () => {
-      each(fbWidget.selectedItems(), item => {
+      for (const item of fbWidget.selectedItems()) {
         docManager.openOrReveal(item.path);
-      });
+      }
     }
   });
   commands.addCommand('file-rename', {
     label: trans.__('Rename'),
-    icon: 'fa fa-edit',
+    iconClass: 'fa fa-edit',
     mnemonic: 0,
     execute: () => {
       return fbWidget.rename();
@@ -177,14 +207,14 @@ function createApp(
   });
   commands.addCommand('file-cut', {
     label: trans.__('Cut'),
-    icon: 'fa fa-cut',
+    iconClass: 'fa fa-cut',
     execute: () => {
       fbWidget.cut();
     }
   });
   commands.addCommand('file-copy', {
     label: trans.__('Copy'),
-    icon: 'fa fa-copy',
+    iconClass: 'fa fa-copy',
     mnemonic: 0,
     execute: () => {
       fbWidget.copy();
@@ -192,7 +222,7 @@ function createApp(
   });
   commands.addCommand('file-delete', {
     label: trans.__('Delete'),
-    icon: 'fa fa-remove',
+    iconClass: 'fa fa-remove',
     mnemonic: 0,
     execute: () => {
       return fbWidget.delete();
@@ -200,7 +230,7 @@ function createApp(
   });
   commands.addCommand('file-duplicate', {
     label: trans.__('Duplicate'),
-    icon: 'fa fa-copy',
+    iconClass: 'fa fa-copy',
     mnemonic: 0,
     execute: () => {
       return fbWidget.duplicate();
@@ -208,7 +238,7 @@ function createApp(
   });
   commands.addCommand('file-paste', {
     label: trans.__('Paste'),
-    icon: 'fa fa-paste',
+    iconClass: 'fa fa-paste',
     mnemonic: 0,
     execute: () => {
       return fbWidget.paste();
@@ -216,14 +246,14 @@ function createApp(
   });
   commands.addCommand('file-download', {
     label: trans.__('Download'),
-    icon: 'fa fa-download',
+    iconClass: 'fa fa-download',
     execute: () => {
       return fbWidget.download();
     }
   });
   commands.addCommand('file-shutdown-kernel', {
     label: trans.__('Shut Down Kernel'),
-    icon: 'fa fa-stop-circle-o',
+    iconClass: 'fa fa-stop-circle-o',
     execute: () => {
       return fbWidget.shutdownKernels();
     }
diff --git a/examples/filebrowser/templates/index.html b/examples/filebrowser/templates/index.html
index 7cdf0c57b11d..46c23e57284c 100644
--- a/examples/filebrowser/templates/index.html
+++ b/examples/filebrowser/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
@@ -5,10 +10,10 @@
 
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/examples/filebrowser/webpack.config.js b/examples/filebrowser/webpack.config.js
index fd8a61a6d82a..ddcae875b187 100644
--- a/examples/filebrowser/webpack.config.js
+++ b/examples/filebrowser/webpack.config.js
@@ -1,17 +1,16 @@
-const webpack = require('webpack');
-const crypto = require('crypto');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const webpack = require('webpack');
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 module.exports = {
   entry: ['whatwg-fetch', './build/index.js'],
   output: {
     path: __dirname + '/build',
-    filename: 'bundle.js',
-    hashFunction: 'sha256'
+    filename: 'bundle.js'
   },
   bail: true,
   devtool: 'source-map',
@@ -19,16 +18,16 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.html$/, use: 'file-loader' },
-      { test: /\.md$/, use: 'raw-loader' },
-      { test: /\.js.map$/, use: 'file-loader' },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.md$/, type: 'asset/source' },
+      { test: /\.js.map$/, type: 'asset/resource' },
       {
         // In .css files, svg is loaded as a data URI.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.css$/,
-        use: {
-          loader: 'svg-url-loader',
-          options: { encoding: 'none', limit: 10000 }
+        type: 'asset/inline',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
         }
       },
       {
@@ -36,22 +35,18 @@ module.exports = {
         // must be loaded as a raw string instead of data URIs.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.js$/,
-        use: {
-          loader: 'raw-loader'
-        }
+        type: 'asset/source'
       },
       {
         test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+        type: 'asset'
       }
     ]
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/examples/notebook/README.md b/examples/notebook/README.md
new file mode 100644
index 000000000000..287d34ca2302
--- /dev/null
+++ b/examples/notebook/README.md
@@ -0,0 +1,5 @@
+# JupyterLab notebook example
+
+This example demonstrates how to create a single notebook application.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
diff --git a/examples/notebook/example.spec.ts-snapshots/example-linux.png b/examples/notebook/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..8286ba49ad9b
Binary files /dev/null and b/examples/notebook/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/notebook/main.py b/examples/notebook/main.py
index db257db28ae9..099a13466252 100644
--- a/examples/notebook/main.py
+++ b/examples/notebook/main.py
@@ -15,10 +15,7 @@
 import os
 
 from jupyter_server.base.handlers import JupyterHandler
-from jupyter_server.extension.handler import (
-    ExtensionHandlerJinjaMixin,
-    ExtensionHandlerMixin,
-)
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
 from jupyter_server.utils import url_path_join as ujoin
 from jupyterlab_server import LabServerApp
 
@@ -39,12 +36,6 @@ class ExampleHandler(ExtensionHandlerJinjaMixin, ExtensionHandlerMixin, JupyterH
 
     def get(self):
         """Get the main page for the application's interface."""
-        # Options set here can be read with PageConfig.getOption
-        mathjax_config = self.settings.get("mathjax_config", "TeX-AMS_HTML-full,Safe")
-        mathjax_url = self.settings.get(
-            "mathjax_url", "https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js"
-        )
-
         config_data = {
             # Use camelCase here, since that's what the lab components expect
             "baseUrl": self.base_url,
@@ -52,8 +43,6 @@ def get(self):
             "notebookPath": "test.ipynb",
             "fullStaticUrl": ujoin(self.base_url, "static", self.name),
             "frontendUrl": ujoin(self.base_url, "example/"),
-            "mathjaxUrl": mathjax_url,
-            "mathjaxConfig": mathjax_config,
         }
         return self.write(
             self.render_template(
@@ -67,7 +56,6 @@ def get(self):
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
@@ -81,8 +69,6 @@ class ExampleApp(LabServerApp):
     user_settings_dir = os.path.join(HERE, "build", "user_settings")
     workspaces_dir = os.path.join(HERE, "build", "workspaces")
 
-    serverapp_config = {"jpserver_extensions": {"nbclassic": True}}
-
     def initialize_handlers(self):
         """Add example handler to Lab Server's handler list."""
         self.handlers.append(("/example", ExampleHandler))
diff --git a/examples/notebook/package.json b/examples/notebook/package.json
index 667a2af71608..ceb2caf159e7 100644
--- a/examples/notebook/package.json
+++ b/examples/notebook/package.json
@@ -1,43 +1,41 @@
 {
   "name": "@jupyterlab/example-notebook",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "tsc -p src && webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/completer": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/documentsearch": "^3.6.6",
-    "@jupyterlab/mathjax2": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/markedparser-extension": "^4.0.8",
+    "@jupyterlab/mathjax-extension": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@types/codemirror": "^0.0.109",
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/examples/notebook/src/commands.ts b/examples/notebook/src/commands.ts
index dfca603a38db..70a763c57774 100644
--- a/examples/notebook/src/commands.ts
+++ b/examples/notebook/src/commands.ts
@@ -1,20 +1,42 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /**
  * Set up keyboard shortcuts & commands for notebook
  */
-import { CommandRegistry } from '@lumino/commands';
-import { sessionContextDialogs } from '@jupyterlab/apputils';
+import { ISessionContextDialogs } from '@jupyterlab/apputils';
 import { CompletionHandler } from '@jupyterlab/completer';
-import { NotebookActions, NotebookPanel } from '@jupyterlab/notebook';
 import {
-  NotebookSearchProvider,
-  SearchInstance
+  SearchDocumentModel,
+  SearchDocumentView
 } from '@jupyterlab/documentsearch';
-import { CommandPalette } from '@lumino/widgets';
+import {
+  NotebookActions,
+  NotebookPanel,
+  NotebookSearchProvider
+} from '@jupyterlab/notebook';
+import { nullTranslator } from '@jupyterlab/translation';
+import {
+  addIcon,
+  copyIcon,
+  cutIcon,
+  deleteIcon,
+  fastForwardIcon,
+  pasteIcon,
+  refreshIcon,
+  runIcon,
+  saveIcon,
+  stopIcon
+} from '@jupyterlab/ui-components';
+import { CommandRegistry } from '@lumino/commands';
+import { CommandPalette, Widget } from '@lumino/widgets';
 
 /**
  * The map of command ids used by the notebook.
  */
-const cmdIds = {
+export const COMMAND_IDS = {
   invoke: 'completer:invoke',
   select: 'completer:select',
   invokeNotebook: 'completer:invoke-notebook',
@@ -40,309 +62,408 @@ const cmdIds = {
   split: 'notebook-cells:split',
   commandMode: 'notebook:command-mode',
   undo: 'notebook-cells:undo',
-  redo: 'notebook-cells:redo'
+  redo: 'notebook-cells:redo',
+  insert: 'notebook-cells:insert',
+  cut: 'notebook-cells:cut',
+  copy: 'notebook-cells:copy',
+  paste: 'notebook-cells:paste',
+  restartAndRun: 'notebook:restart-and-run'
 };
 
-export const SetupCommands = (
+export const setupCommands = (
   commands: CommandRegistry,
   palette: CommandPalette,
   nbWidget: NotebookPanel,
-  handler: CompletionHandler
-) => {
+  handler: CompletionHandler,
+  sessionContextDialogs: ISessionContextDialogs
+): void => {
   // Add commands.
-  commands.addCommand(cmdIds.invoke, {
+  commands.addCommand(COMMAND_IDS.invoke, {
     label: 'Completer: Invoke',
     execute: () => handler.invoke()
   });
-  commands.addCommand(cmdIds.select, {
+  commands.addCommand(COMMAND_IDS.select, {
     label: 'Completer: Select',
     execute: () => handler.completer.selectActive()
   });
-  commands.addCommand(cmdIds.invokeNotebook, {
+  commands.addCommand(COMMAND_IDS.invokeNotebook, {
     label: 'Invoke Notebook',
     execute: () => {
       if (nbWidget.content.activeCell?.model.type === 'code') {
-        return commands.execute(cmdIds.invoke);
+        return commands.execute(COMMAND_IDS.invoke);
       }
     }
   });
-  commands.addCommand(cmdIds.selectNotebook, {
+  commands.addCommand(COMMAND_IDS.selectNotebook, {
     label: 'Select Notebook',
     execute: () => {
       if (nbWidget.content.activeCell?.model.type === 'code') {
-        return commands.execute(cmdIds.select);
+        return commands.execute(COMMAND_IDS.select);
       }
     }
   });
-  commands.addCommand(cmdIds.save, {
-    label: 'Save',
+  commands.addCommand(COMMAND_IDS.save, {
+    label: args => (args.toolbar ? '' : 'Save'),
+    caption: 'Save',
+    icon: args => (args.toolbar ? saveIcon : undefined),
     execute: () => nbWidget.context.save()
   });
 
-  let searchInstance: SearchInstance | undefined;
-  commands.addCommand(cmdIds.startSearch, {
+  let searchInstance: SearchDocumentView | undefined;
+  commands.addCommand(COMMAND_IDS.startSearch, {
     label: 'Find…',
     execute: () => {
-      if (searchInstance) {
-        searchInstance.focusInput();
-        return;
+      if (!searchInstance) {
+        const provider = new NotebookSearchProvider(nbWidget, nullTranslator);
+        const searchModel = new SearchDocumentModel(provider, 500);
+        searchInstance = new SearchDocumentView(searchModel);
+        /**
+         * Activate the target widget when the search panel is closing
+         */
+        searchInstance.closed.connect(() => {
+          if (!nbWidget.isDisposed) {
+            nbWidget.activate();
+          }
+        });
+
+        searchInstance.disposed.connect(() => {
+          if (!nbWidget.isDisposed) {
+            nbWidget.activate();
+          }
+          // find next and previous are now disabled
+          commands.notifyCommandChanged(COMMAND_IDS.startSearch);
+        });
+
+        /**
+         * Dispose resources when the widget is disposed.
+         */
+        nbWidget.disposed.connect(() => {
+          searchInstance?.dispose();
+          searchModel.dispose();
+          provider.dispose();
+        });
       }
-      const provider = new NotebookSearchProvider();
-      searchInstance = new SearchInstance(nbWidget, provider);
-      searchInstance.disposed.connect(() => {
-        searchInstance = undefined;
-        // find next and previous are now not enabled
-        commands.notifyCommandChanged();
-      });
-      // find next and previous are now enabled
-      commands.notifyCommandChanged();
-      searchInstance.focusInput();
+
+      if (!searchInstance.isAttached) {
+        Widget.attach(searchInstance, nbWidget.node);
+        searchInstance.node.style.top = `${
+          nbWidget.toolbar.node.getBoundingClientRect().height +
+          nbWidget.contentHeader.node.getBoundingClientRect().height
+        }px`;
+
+        if (searchInstance.model.searchExpression) {
+          searchInstance.model.refresh();
+        }
+      }
+      searchInstance.focusSearchInput();
     }
   });
-  commands.addCommand(cmdIds.findNext, {
+  commands.addCommand(COMMAND_IDS.findNext, {
     label: 'Find Next',
     isEnabled: () => !!searchInstance,
     execute: async () => {
       if (!searchInstance) {
         return;
       }
-      await searchInstance.provider.highlightNext();
-      searchInstance.updateIndices();
+      await searchInstance.model.highlightNext();
     }
   });
-  commands.addCommand(cmdIds.findPrevious, {
+  commands.addCommand(COMMAND_IDS.findPrevious, {
     label: 'Find Previous',
     isEnabled: () => !!searchInstance,
     execute: async () => {
       if (!searchInstance) {
         return;
       }
-      await searchInstance.provider.highlightPrevious();
-      searchInstance.updateIndices();
+      await searchInstance.model.highlightPrevious();
     }
   });
-  commands.addCommand(cmdIds.interrupt, {
-    label: 'Interrupt',
+  commands.addCommand(COMMAND_IDS.interrupt, {
+    label: args => (args.toolbar ? '' : 'Interrupt'),
+    caption: 'Interrupt the kernel',
+    icon: args => (args.toolbar ? stopIcon : undefined),
     execute: async () =>
       nbWidget.context.sessionContext.session?.kernel?.interrupt()
   });
-  commands.addCommand(cmdIds.restart, {
-    label: 'Restart Kernel',
+  commands.addCommand(COMMAND_IDS.restart, {
+    label: args => (args.toolbar ? '' : 'Restart Kernel'),
+    caption: 'Restart the kernel',
+    icon: args => (args.toolbar ? refreshIcon : undefined),
     execute: () =>
       sessionContextDialogs.restart(nbWidget.context.sessionContext)
   });
-  commands.addCommand(cmdIds.switchKernel, {
+  commands.addCommand(COMMAND_IDS.switchKernel, {
     label: 'Switch Kernel',
     execute: () =>
       sessionContextDialogs.selectKernel(nbWidget.context.sessionContext)
   });
-  commands.addCommand(cmdIds.runAndAdvance, {
-    label: 'Run and Advance',
+  commands.addCommand(COMMAND_IDS.runAndAdvance, {
+    label: args => (args.toolbar ? '' : 'Run and Advance'),
+    caption: 'Run the selected cells and advance.',
+    icon: args => (args.toolbar ? runIcon : undefined),
     execute: () => {
       return NotebookActions.runAndAdvance(
         nbWidget.content,
-        nbWidget.context.sessionContext
+        nbWidget.context.sessionContext,
+        sessionContextDialogs
       );
     }
   });
-  commands.addCommand(cmdIds.run, {
+  commands.addCommand(COMMAND_IDS.run, {
     label: 'Run',
     execute: () => {
       return NotebookActions.run(
         nbWidget.content,
-        nbWidget.context.sessionContext
+        nbWidget.context.sessionContext,
+        sessionContextDialogs
       );
     }
   });
-  commands.addCommand(cmdIds.editMode, {
+  commands.addCommand(COMMAND_IDS.editMode, {
     label: 'Edit Mode',
     execute: () => {
       nbWidget.content.mode = 'edit';
     }
   });
-  commands.addCommand(cmdIds.commandMode, {
+  commands.addCommand(COMMAND_IDS.commandMode, {
     label: 'Command Mode',
     execute: () => {
       nbWidget.content.mode = 'command';
     }
   });
-  commands.addCommand(cmdIds.selectBelow, {
+  commands.addCommand(COMMAND_IDS.selectBelow, {
     label: 'Select Below',
     execute: () => NotebookActions.selectBelow(nbWidget.content)
   });
-  commands.addCommand(cmdIds.selectAbove, {
+  commands.addCommand(COMMAND_IDS.selectAbove, {
     label: 'Select Above',
     execute: () => NotebookActions.selectAbove(nbWidget.content)
   });
-  commands.addCommand(cmdIds.extendAbove, {
+  commands.addCommand(COMMAND_IDS.extendAbove, {
     label: 'Extend Above',
     execute: () => NotebookActions.extendSelectionAbove(nbWidget.content)
   });
-  commands.addCommand(cmdIds.extendTop, {
+  commands.addCommand(COMMAND_IDS.extendTop, {
     label: 'Extend to Top',
     execute: () => NotebookActions.extendSelectionAbove(nbWidget.content, true)
   });
-  commands.addCommand(cmdIds.extendBelow, {
+  commands.addCommand(COMMAND_IDS.extendBelow, {
     label: 'Extend Below',
     execute: () => NotebookActions.extendSelectionBelow(nbWidget.content)
   });
-  commands.addCommand(cmdIds.extendBottom, {
+  commands.addCommand(COMMAND_IDS.extendBottom, {
     label: 'Extend to Bottom',
     execute: () => NotebookActions.extendSelectionBelow(nbWidget.content, true)
   });
-  commands.addCommand(cmdIds.merge, {
+  commands.addCommand(COMMAND_IDS.merge, {
     label: 'Merge Cells',
     execute: () => NotebookActions.mergeCells(nbWidget.content)
   });
-  commands.addCommand(cmdIds.split, {
+  commands.addCommand(COMMAND_IDS.split, {
     label: 'Split Cell',
     execute: () => NotebookActions.splitCell(nbWidget.content)
   });
-  commands.addCommand(cmdIds.undo, {
+  commands.addCommand(COMMAND_IDS.undo, {
     label: 'Undo',
     execute: () => NotebookActions.undo(nbWidget.content)
   });
-  commands.addCommand(cmdIds.redo, {
+  commands.addCommand(COMMAND_IDS.redo, {
     label: 'Redo',
     execute: () => NotebookActions.redo(nbWidget.content)
   });
 
+  commands.addCommand(COMMAND_IDS.insert, {
+    label: args => (args.toolbar ? '' : 'Insert a cell below'),
+    caption: 'Insert a cell below',
+    icon: args => (args.toolbar ? addIcon : undefined),
+    execute: () => NotebookActions.insertBelow(nbWidget.content)
+  });
+
+  commands.addCommand(COMMAND_IDS.deleteCell, {
+    label: args => (args.toolbar ? '' : 'Delete the selected cells'),
+    caption: 'Delete the selected cells',
+    icon: args => (args.toolbar ? deleteIcon : undefined),
+    execute: () => NotebookActions.deleteCells(nbWidget.content)
+  });
+
+  commands.addCommand(COMMAND_IDS.cut, {
+    label: args => (args.toolbar ? '' : 'Cut the selected cells'),
+    caption: 'Cut the selected cells',
+    icon: args => (args.toolbar ? cutIcon : undefined),
+    execute: () => NotebookActions.cut(nbWidget.content)
+  });
+
+  commands.addCommand(COMMAND_IDS.copy, {
+    label: args => (args.toolbar ? '' : 'Copy the selected cells'),
+    caption: 'Copy the selected cells',
+    icon: args => (args.toolbar ? copyIcon : undefined),
+    execute: () => NotebookActions.copy(nbWidget.content)
+  });
+
+  commands.addCommand(COMMAND_IDS.paste, {
+    label: args => (args.toolbar ? '' : 'Paste cells from the clipboard'),
+    caption: 'Paste cells from the clipboard',
+    icon: args => (args.toolbar ? pasteIcon : undefined),
+    execute: () => NotebookActions.paste(nbWidget.content)
+  });
+
+  commands.addCommand(COMMAND_IDS.restartAndRun, {
+    label: args =>
+      args.toolbar ? '' : 'Restart the kernel, then re-run the whole notebook',
+    caption: 'Restart the kernl, then re-run the whole notebook',
+    icon: args => (args.toolbar ? fastForwardIcon : undefined),
+    execute: () => {
+      void sessionContextDialogs
+        .restart(nbWidget.sessionContext)
+        .then(restarted => {
+          if (restarted) {
+            void NotebookActions.runAll(
+              nbWidget.content,
+              nbWidget.sessionContext,
+              sessionContextDialogs
+            );
+          }
+          return restarted;
+        });
+    }
+  });
+
   let category = 'Notebook Operations';
   [
-    cmdIds.interrupt,
-    cmdIds.restart,
-    cmdIds.editMode,
-    cmdIds.commandMode,
-    cmdIds.switchKernel,
-    cmdIds.startSearch,
-    cmdIds.findNext,
-    cmdIds.findPrevious
+    COMMAND_IDS.interrupt,
+    COMMAND_IDS.restart,
+    COMMAND_IDS.editMode,
+    COMMAND_IDS.commandMode,
+    COMMAND_IDS.switchKernel,
+    COMMAND_IDS.startSearch,
+    COMMAND_IDS.findNext,
+    COMMAND_IDS.findPrevious
   ].forEach(command => palette.addItem({ command, category }));
 
   category = 'Notebook Cell Operations';
   [
-    cmdIds.runAndAdvance,
-    cmdIds.run,
-    cmdIds.split,
-    cmdIds.merge,
-    cmdIds.selectAbove,
-    cmdIds.selectBelow,
-    cmdIds.extendAbove,
-    cmdIds.extendBelow,
-    cmdIds.undo,
-    cmdIds.redo
+    COMMAND_IDS.runAndAdvance,
+    COMMAND_IDS.run,
+    COMMAND_IDS.split,
+    COMMAND_IDS.merge,
+    COMMAND_IDS.selectAbove,
+    COMMAND_IDS.selectBelow,
+    COMMAND_IDS.extendAbove,
+    COMMAND_IDS.extendBelow,
+    COMMAND_IDS.undo,
+    COMMAND_IDS.redo
   ].forEach(command => palette.addItem({ command, category }));
 
   const bindings = [
     {
       selector: '.jp-Notebook.jp-mod-editMode .jp-mod-completer-enabled',
       keys: ['Tab'],
-      command: cmdIds.invokeNotebook
+      command: COMMAND_IDS.invokeNotebook
     },
     {
       selector: `.jp-mod-completer-active`,
       keys: ['Enter'],
-      command: cmdIds.selectNotebook
+      command: COMMAND_IDS.selectNotebook
     },
     {
       selector: '.jp-Notebook',
       keys: ['Ctrl Enter'],
-      command: cmdIds.run
+      command: COMMAND_IDS.run
     },
     {
       selector: '.jp-Notebook',
       keys: ['Shift Enter'],
-      command: cmdIds.runAndAdvance
+      command: COMMAND_IDS.runAndAdvance
     },
     {
       selector: '.jp-Notebook',
       keys: ['Accel S'],
-      command: cmdIds.save
+      command: COMMAND_IDS.save
     },
     {
       selector: '.jp-Notebook',
       keys: ['Accel F'],
-      command: cmdIds.startSearch
+      command: COMMAND_IDS.startSearch
     },
     {
       selector: '.jp-Notebook',
       keys: ['Accel G'],
-      command: cmdIds.findNext
+      command: COMMAND_IDS.findNext
     },
     {
       selector: '.jp-Notebook',
       keys: ['Accel Shift G'],
-      command: cmdIds.findPrevious
+      command: COMMAND_IDS.findPrevious
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['I', 'I'],
-      command: cmdIds.interrupt
+      command: COMMAND_IDS.interrupt
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['0', '0'],
-      command: cmdIds.restart
+      command: COMMAND_IDS.restart
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Enter'],
-      command: cmdIds.editMode
+      command: COMMAND_IDS.editMode
     },
     {
       selector: '.jp-Notebook.jp-mod-editMode',
       keys: ['Escape'],
-      command: cmdIds.commandMode
+      command: COMMAND_IDS.commandMode
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Shift M'],
-      command: cmdIds.merge
+      command: COMMAND_IDS.merge
     },
     {
       selector: '.jp-Notebook.jp-mod-editMode',
       keys: ['Ctrl Shift -'],
-      command: cmdIds.split
+      command: COMMAND_IDS.split
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['J'],
-      command: cmdIds.selectBelow
+      command: COMMAND_IDS.selectBelow
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['ArrowDown'],
-      command: cmdIds.selectBelow
+      command: COMMAND_IDS.selectBelow
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['K'],
-      command: cmdIds.selectAbove
+      command: COMMAND_IDS.selectAbove
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['ArrowUp'],
-      command: cmdIds.selectAbove
+      command: COMMAND_IDS.selectAbove
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Shift K'],
-      command: cmdIds.extendAbove
+      command: COMMAND_IDS.extendAbove
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Shift J'],
-      command: cmdIds.extendBelow
+      command: COMMAND_IDS.extendBelow
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Z'],
-      command: cmdIds.undo
+      command: COMMAND_IDS.undo
     },
     {
       selector: '.jp-Notebook.jp-mod-commandMode:focus',
       keys: ['Y'],
-      command: cmdIds.redo
+      command: COMMAND_IDS.redo
     }
   ];
   bindings.map(binding => commands.addKeyBinding(binding));
diff --git a/examples/notebook/src/index.ts b/examples/notebook/src/index.ts
old mode 100755
new mode 100644
index f6560900ec9f..9efbd3c93027
--- a/examples/notebook/src/index.ts
+++ b/examples/notebook/src/index.ts
@@ -15,37 +15,48 @@ import '@jupyterlab/notebook/style/index.css';
 import '@jupyterlab/theme-light-extension/style/theme.css';
 import '../index.css';
 
-import { CommandRegistry } from '@lumino/commands';
-
-import { CommandPalette, SplitPanel, Widget } from '@lumino/widgets';
-
-import { ServiceManager } from '@jupyterlab/services';
-import { MathJaxTypesetter } from '@jupyterlab/mathjax2';
-
+import { IYText } from '@jupyter/ydoc';
 import {
-  NotebookModelFactory,
-  NotebookPanel,
-  NotebookWidgetFactory
-} from '@jupyterlab/notebook';
-
+  Toolbar as AppToolbar,
+  CommandToolbarButton,
+  SessionContextDialogs
+} from '@jupyterlab/apputils';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  EditorThemeRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
 import {
   Completer,
   CompleterModel,
   CompletionHandler,
-  KernelConnector
+  KernelCompleterProvider,
+  ProviderReconciliator
 } from '@jupyterlab/completer';
-
-import { editorServices } from '@jupyterlab/codemirror';
-
 import { DocumentManager } from '@jupyterlab/docmanager';
-
 import { DocumentRegistry } from '@jupyterlab/docregistry';
-
+import { createMarkdownParser } from '@jupyterlab/markedparser-extension';
+import { MathJaxTypesetter } from '@jupyterlab/mathjax-extension';
+import {
+  ExecutionIndicator,
+  NotebookModelFactory,
+  NotebookPanel,
+  NotebookWidgetFactory,
+  ToolbarItems
+} from '@jupyterlab/notebook';
 import {
   standardRendererFactories as initialFactories,
   RenderMimeRegistry
 } from '@jupyterlab/rendermime';
-import { SetupCommands } from './commands';
+import { ServiceManager } from '@jupyterlab/services';
+import { Toolbar } from '@jupyterlab/ui-components';
+import { CommandRegistry } from '@lumino/commands';
+import { CommandPalette, SplitPanel, Widget } from '@lumino/widgets';
+
+import { COMMAND_IDS, setupCommands } from './commands';
 
 function main(): void {
   const manager = new ServiceManager();
@@ -68,17 +79,27 @@ function createApp(manager: ServiceManager.IManager): void {
     useCapture
   );
 
+  const languages = new EditorLanguageRegistry();
+
   const rendermime = new RenderMimeRegistry({
     initialFactories: initialFactories,
-    latexTypesetter: new MathJaxTypesetter({
-      url: PageConfig.getOption('mathjaxUrl'),
-      config: PageConfig.getOption('mathjaxConfig')
-    })
+    latexTypesetter: new MathJaxTypesetter(),
+    markdownParser: createMarkdownParser(languages)
   });
 
   const opener = {
     open: (widget: Widget) => {
       // Do nothing for sibling widgets for now.
+    },
+    get opened() {
+      return {
+        connect: () => {
+          return false;
+        },
+        disconnect: () => {
+          return false;
+        }
+      };
     }
   };
 
@@ -89,9 +110,96 @@ function createApp(manager: ServiceManager.IManager): void {
     opener
   });
   const mFactory = new NotebookModelFactory({});
-  const editorFactory = editorServices.factoryService.newInlineEditor;
+  const editorExtensions = () => {
+    const themes = new EditorThemeRegistry();
+    EditorThemeRegistry.getDefaultThemes().forEach(theme => {
+      themes.addTheme(theme);
+    });
+    const registry = new EditorExtensionRegistry();
+
+    EditorExtensionRegistry.getDefaultExtensions({ themes }).forEach(
+      extensionFactory => {
+        registry.addExtension(extensionFactory);
+      }
+    );
+    registry.addExtension({
+      name: 'shared-model-binding',
+      factory: options => {
+        const sharedModel = options.model.sharedModel as IYText;
+        return EditorExtensionRegistry.createImmutableExtension(
+          ybinding({
+            ytext: sharedModel.ysource,
+            undoManager: sharedModel.undoManager ?? undefined
+          })
+        );
+      }
+    });
+    return registry;
+  };
+  EditorLanguageRegistry.getDefaultLanguages()
+    .filter(language =>
+      ['ipython', 'julia', 'python'].includes(language.name.toLowerCase())
+    )
+    .forEach(language => {
+      languages.addLanguage(language);
+    });
+  // Language for Markdown cells
+  languages.addLanguage({
+    name: 'ipythongfm',
+    mime: 'text/x-ipythongfm',
+    load: async () => {
+      const m = await import('@codemirror/lang-markdown');
+      return m.markdown({
+        codeLanguages: (info: string) => languages.findBest(info) as any
+      });
+    }
+  });
+  const factoryService = new CodeMirrorEditorFactory({
+    extensions: editorExtensions(),
+    languages
+  });
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
+  const editorFactory = factoryService.newInlineEditor;
   const contentFactory = new NotebookPanel.ContentFactory({ editorFactory });
 
+  const sessionContextDialogs = new SessionContextDialogs();
+  const toolbarFactory = (panel: NotebookPanel) =>
+    [
+      COMMAND_IDS.save,
+      COMMAND_IDS.insert,
+      COMMAND_IDS.deleteCell,
+      COMMAND_IDS.cut,
+      COMMAND_IDS.copy,
+      COMMAND_IDS.paste,
+      COMMAND_IDS.runAndAdvance,
+      COMMAND_IDS.interrupt,
+      COMMAND_IDS.restart,
+      COMMAND_IDS.restartAndRun
+    ]
+      .map<DocumentRegistry.IToolbarItem>(id => ({
+        name: id,
+        widget: new CommandToolbarButton({
+          commands,
+          id,
+          args: { toolbar: true }
+        })
+      }))
+      .concat([
+        { name: 'cellType', widget: ToolbarItems.createCellTypeItem(panel) },
+        { name: 'spacer', widget: Toolbar.createSpacerItem() },
+        {
+          name: 'kernelName',
+          widget: AppToolbar.createKernelNameItem(
+            panel.sessionContext,
+            sessionContextDialogs
+          )
+        },
+        {
+          name: 'executionProgress',
+          widget: ExecutionIndicator.createExecutionIndicatorItem(panel)
+        }
+      ]);
+
   const wFactory = new NotebookWidgetFactory({
     name: 'Notebook',
     modelName: 'notebook',
@@ -101,7 +209,8 @@ function createApp(manager: ServiceManager.IManager): void {
     canStartKernel: true,
     rendermime,
     contentFactory,
-    mimeTypeService: editorServices.mimeTypeService
+    mimeTypeService,
+    toolbarFactory
   });
   docRegistry.addModelFactory(mFactory);
   docRegistry.addWidgetFactory(wFactory);
@@ -116,15 +225,24 @@ function createApp(manager: ServiceManager.IManager): void {
   const model = new CompleterModel();
   const completer = new Completer({ editor, model });
   const sessionContext = nbWidget.context.sessionContext;
-  const connector = new KernelConnector({
-    session: sessionContext.session
+  const timeout = 1000;
+  const provider = new KernelCompleterProvider();
+  const reconciliator = new ProviderReconciliator({
+    context: { widget: nbWidget, editor, session: sessionContext.session },
+    providers: [provider],
+    timeout: timeout
   });
-  const handler = new CompletionHandler({ completer, connector });
+  const handler = new CompletionHandler({ completer, reconciliator });
 
   void sessionContext.ready.then(() => {
-    handler.connector = new KernelConnector({
-      session: sessionContext.session
+    const provider = new KernelCompleterProvider();
+    const reconciliator = new ProviderReconciliator({
+      context: { widget: nbWidget, editor, session: sessionContext.session },
+      providers: [provider],
+      timeout: timeout
     });
+
+    handler.reconciliator = reconciliator;
   });
 
   // Set the handler's editor.
@@ -156,7 +274,7 @@ function createApp(manager: ServiceManager.IManager): void {
     panel.update();
   });
 
-  SetupCommands(commands, palette, nbWidget, handler);
+  setupCommands(commands, palette, nbWidget, handler, sessionContextDialogs);
 
   console.debug('Example started!');
 }
diff --git a/examples/notebook/templates/index.html b/examples/notebook/templates/index.html
index 7cdf0c57b11d..46c23e57284c 100644
--- a/examples/notebook/templates/index.html
+++ b/examples/notebook/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
@@ -5,10 +10,10 @@
 
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/examples/notebook/test.ipynb b/examples/notebook/test.ipynb
index 3ecf9384c9e9..89bfd7dd1a68 100644
--- a/examples/notebook/test.ipynb
+++ b/examples/notebook/test.ipynb
@@ -34,6 +34,7 @@
    ],
    "source": [
     "import sys\n",
+    "\n",
     "sys.stdout.write('hello world\\n')\n",
     "sys.stdout.flush()\n",
     "for i in range(3):\n",
@@ -121,7 +122,9 @@
    ],
    "source": [
     "from IPython.display import Latex\n",
-    "Latex('''The mass-energy equivalence is described by the famous equation\n",
+    "\n",
+    "Latex(\n",
+    "    '''The mass-energy equivalence is described by the famous equation\n",
     " \n",
     "$$E=mc^2$$\n",
     " \n",
@@ -130,7 +133,8 @@
     " \n",
     "\\\\begin{equation}\n",
     "E=m\n",
-    "\\\\end{equation}''')"
+    "\\\\end{equation}'''\n",
+    ")"
    ]
   },
   {
diff --git a/examples/notebook/webpack.config.js b/examples/notebook/webpack.config.js
index 694e6eefa3ea..a981de3464fa 100644
--- a/examples/notebook/webpack.config.js
+++ b/examples/notebook/webpack.config.js
@@ -1,17 +1,16 @@
-const webpack = require('webpack');
-const crypto = require('crypto');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const webpack = require('webpack');
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 module.exports = {
   entry: ['whatwg-fetch', './build/index.js'],
   output: {
     path: __dirname + '/build',
-    filename: 'bundle.js',
-    hashFunction: 'sha256'
+    filename: 'bundle.js'
   },
   bail: true,
   devtool: 'cheap-source-map',
@@ -19,16 +18,16 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.html$/, use: 'file-loader' },
-      { test: /\.md$/, use: 'raw-loader' },
-      { test: /\.js.map$/, use: 'file-loader' },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.md$/, type: 'asset/source' },
+      { test: /\.js.map$/, type: 'asset/resource' },
       {
         // In .css files, svg is loaded as a data URI.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.css$/,
-        use: {
-          loader: 'svg-url-loader',
-          options: { encoding: 'none', limit: 10000 }
+        type: 'asset/inline',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
         }
       },
       {
@@ -36,22 +35,18 @@ module.exports = {
         // must be loaded as a raw string instead of data URIs.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.js$/,
-        use: {
-          loader: 'raw-loader'
-        }
+        type: 'asset/source'
       },
       {
         test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+        type: 'asset'
       }
     ]
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/examples/notebooks/OutputExamples.ipynb b/examples/notebooks/OutputExamples.ipynb
index c4391a70e4c1..a1493b51485d 100644
--- a/examples/notebooks/OutputExamples.ipynb
+++ b/examples/notebooks/OutputExamples.ipynb
@@ -21,9 +21,7 @@
    "outputs": [],
    "source": [
     "from IPython.display import display\n",
-    "from IPython.display import (\n",
-    "    HTML, Image, Latex, Math, Markdown, SVG\n",
-    ")"
+    "from IPython.display import HTML, Image, Latex, Math, Markdown, SVG"
    ]
   },
   {
@@ -118,7 +116,9 @@
     }
    ],
    "source": [
-    "import sys; print('this is stderr', file=sys.stderr)"
+    "import sys\n",
+    "\n",
+    "print('this is stderr', file=sys.stderr)"
    ]
   },
   {
@@ -252,12 +252,14 @@
     }
    ],
    "source": [
-    "md = Markdown(\"\"\"\n",
+    "md = Markdown(\n",
+    "    \"\"\"\n",
     "### Subtitle\n",
     "\n",
     "This is some *markdown* text with math $F=ma$.\n",
     "\n",
-    "\"\"\")\n",
+    "\"\"\"\n",
+    ")\n",
     "md"
    ]
   },
@@ -357,13 +359,15 @@
     }
    ],
    "source": [
-    "maxwells = Latex(r\"\"\"\n",
+    "maxwells = Latex(\n",
+    "    r\"\"\"\n",
     "\\begin{align}\n",
     "\\nabla \\times \\vec{\\mathbf{B}} -\\, \\frac1c\\, \\frac{\\partial\\vec{\\mathbf{E}}}{\\partial t} & = \\frac{4\\pi}{c}\\vec{\\mathbf{j}} \\\\   \\nabla \\cdot \\vec{\\mathbf{E}} & = 4 \\pi \\rho \\\\\n",
     "\\nabla \\times \\vec{\\mathbf{E}}\\, +\\, \\frac1c\\, \\frac{\\partial\\vec{\\mathbf{B}}}{\\partial t} & = \\vec{\\mathbf{0}} \\\\\n",
     "\\nabla \\cdot \\vec{\\mathbf{B}} & = 0\n",
     "\\end{align}\n",
-    "\"\"\")\n",
+    "\"\"\"\n",
+    ")\n",
     "maxwells"
    ]
   },
@@ -384,6 +388,7 @@
     "import matplotlib.pyplot as plt\n",
     "import numpy as np\n",
     "from IPython.display import set_matplotlib_formats\n",
+    "\n",
     "set_matplotlib_formats('pdf')"
    ]
   },
@@ -479,9 +484,7 @@
    ],
    "source": [
     "img2 = Image(\n",
-    "    \"https://apod.nasa.gov/apod/image/1707/GreatWallMilkyWay_Yu_1686.jpg\",\n",
-    "    width=100,\n",
-    "    height=200\n",
+    "    \"https://apod.nasa.gov/apod/image/1707/GreatWallMilkyWay_Yu_1686.jpg\", width=100, height=200\n",
     ")\n",
     "img2"
    ]
diff --git a/examples/terminal/README.md b/examples/terminal/README.md
new file mode 100644
index 000000000000..3fd8c28ae8de
--- /dev/null
+++ b/examples/terminal/README.md
@@ -0,0 +1,5 @@
+# JupyterLab terminal example
+
+This example demonstrates how to create a terminal application.
+
+![preview](./example.spec.ts-snapshots/example-linux.png)
diff --git a/examples/terminal/example.spec.ts-snapshots/example-linux.png b/examples/terminal/example.spec.ts-snapshots/example-linux.png
new file mode 100644
index 000000000000..8acb75c2b2c3
Binary files /dev/null and b/examples/terminal/example.spec.ts-snapshots/example-linux.png differ
diff --git a/examples/terminal/main.py b/examples/terminal/main.py
index 08544889bbf5..10e5f909bfb5 100644
--- a/examples/terminal/main.py
+++ b/examples/terminal/main.py
@@ -15,10 +15,7 @@
 import os
 
 from jupyter_server.base.handlers import JupyterHandler
-from jupyter_server.extension.handler import (
-    ExtensionHandlerJinjaMixin,
-    ExtensionHandlerMixin,
-)
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
 from jupyter_server.utils import url_path_join as ujoin
 from jupyterlab_server import LabServerApp
 
@@ -60,7 +57,6 @@ def get(self):
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
diff --git a/examples/terminal/package.json b/examples/terminal/package.json
index 316d464b5668..7f82967b03be 100644
--- a/examples/terminal/package.json
+++ b/examples/terminal/package.json
@@ -1,33 +1,28 @@
 {
   "name": "@jupyterlab/example-terminal",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "build": "tsc -p src && webpack",
     "clean": "rimraf build"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/terminal": "^3.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/terminal": "^4.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/examples/terminal/templates/index.html b/examples/terminal/templates/index.html
index 8ff75da99bbf..96f60a46485e 100644
--- a/examples/terminal/templates/index.html
+++ b/examples/terminal/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
@@ -5,10 +10,10 @@
 
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/examples/terminal/webpack.config.js b/examples/terminal/webpack.config.js
index a5a12b1290aa..1cc806bcbd93 100644
--- a/examples/terminal/webpack.config.js
+++ b/examples/terminal/webpack.config.js
@@ -1,17 +1,16 @@
-const webpack = require('webpack');
-const crypto = require('crypto');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
+const webpack = require('webpack');
+const miniSVGDataURI = require('mini-svg-data-uri');
 
 module.exports = {
   entry: ['whatwg-fetch', './build/index.js'],
   output: {
     path: __dirname + '/build',
-    filename: 'bundle.js',
-    hashFunction: 'sha256'
+    filename: 'bundle.js'
   },
   bail: true,
   devtool: 'cheap-source-map',
@@ -19,15 +18,15 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.html$/, use: 'file-loader' },
-      { test: /\.md$/, use: 'raw-loader' },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.md$/, type: 'asset/source' },
       {
         // In .css files, svg is loaded as a data URI.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.css$/,
-        use: {
-          loader: 'svg-url-loader',
-          options: { encoding: 'none', limit: 10000 }
+        type: 'asset',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
         }
       },
       {
@@ -35,22 +34,18 @@ module.exports = {
         // must be loaded as a raw string instead of data URIs.
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         issuer: /\.js$/,
-        use: {
-          loader: 'raw-loader'
-        }
+        type: 'asset/source'
       },
       {
         test: /\.(png|jpg|gif|ttf|woff|woff2|eot)(\?v=[0-9]\.[0-9]\.[0-9])?$/,
-        use: [{ loader: 'url-loader', options: { limit: 10000 } }]
+        type: 'asset'
       }
     ]
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/examples/test_examples.py b/examples/test_examples.py
index 12eeb977c096..35748ee3189d 100644
--- a/examples/test_examples.py
+++ b/examples/test_examples.py
@@ -1,10 +1,12 @@
-# -*- coding: utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 """
 This file is meant to be used to test all of the example here and and
 in ../packages/services/examples.  We import each of the applications
-and add instrument them with a puppeteer test that makes sure
+and add instrument them with a Playwright test that makes sure
 there are no console errors or uncaught errors prior to a sentinel
-string being printed (see chrome-example-test.js for the sentinel strings
+string being printed (see test/example.spec.ts for the sentinel strings
 checked before the browser.close() call).
 """
 import argparse
@@ -20,7 +22,7 @@
 def header(path):
     test_name = osp.basename(path)
     print(
-        "\n".join(("\n", "*" * 40, "Starting %s test in %s" % (test_name, path), "*" * 40)),
+        "\n".join(("\n", "*" * 40, f"Starting {test_name} test in {path}", "*" * 40)),
         flush=True,
     )
 
@@ -33,26 +35,33 @@ def main():
     paths = [i for i in glob.glob("%s/*" % here) if osp.isdir(i)]
 
     services_dir = osp.abspath(osp.join(here, "../packages/services/examples"))
-    paths += [i for i in glob.glob("%s/*" % services_dir)]
+    paths += list(glob.glob("%s/*" % services_dir))
     if args.testPath:
         paths = [p for p in paths if args.testPath in p]
 
     print("Testing %s" % paths)
-
     count = 0
+    failed = []
     for path in sorted(paths):
-        if osp.basename(path) == "node":
-            with tempfile.TemporaryDirectory() as cwd:
-                header(path)
-                runner = osp.join(path, "main.py")
-                subprocess.check_call([sys.executable, runner], cwd=cwd)
-                count += 1
-        elif osp.exists(osp.join(path, "main.py")):
-            with tempfile.TemporaryDirectory() as cwd:
-                header(path)
-                runner = osp.join(here, "example_check.py")
-                subprocess.check_call([sys.executable, runner, path], cwd=cwd)
-                count += 1
+        try:
+            if osp.basename(path) == "node":
+                with tempfile.TemporaryDirectory() as cwd:
+                    header(path)
+                    runner = osp.join(path, "main.py")
+                    subprocess.check_call([sys.executable, runner], cwd=cwd)  # noqa S603
+                    count += 1
+            elif osp.exists(osp.join(path, "main.py")):
+                with tempfile.TemporaryDirectory() as cwd:
+                    header(path)
+                    runner = osp.join(here, "example_check.py")
+                    subprocess.check_call([sys.executable, runner, path], cwd=cwd)  # noqa S603
+                    count += 1
+        except subprocess.CalledProcessError:
+            failed.append(path)
+
+    if failed:
+        msg = "The following examples failed:\n-{}".format("\n-".join(failed))
+        raise AssertionError(msg)
 
     print("\n\n%s tests complete!" % count)
 
diff --git a/examples/vdom/typing_slimes.gif b/examples/vdom/typing_slimes.gif
deleted file mode 100644
index 710f464da72a..000000000000
Binary files a/examples/vdom/typing_slimes.gif and /dev/null differ
diff --git a/examples/vdom/vdom-extension.vdom.json b/examples/vdom/vdom-extension.vdom.json
deleted file mode 100644
index e60ee4989e83..000000000000
--- a/examples/vdom/vdom-extension.vdom.json
+++ /dev/null
@@ -1,49 +0,0 @@
-{
-  "tagName": "div",
-  "attributes": {},
-  "children": [
-    {
-      "tagName": "h1",
-      "attributes": {},
-      "children": "Our Incredibly Declarative Example",
-      "key": 0
-    },
-    {
-      "tagName": "p",
-      "attributes": {},
-      "children": [
-        "Can you believe we wrote this ",
-        {
-          "tagName": "b",
-          "attributes": {},
-          "children": "in Python",
-          "key": 1
-        },
-        "?"
-      ],
-      "key": 1
-    },
-    {
-      "tagName": "img",
-      "attributes": {
-        "src": "https://media.giphy.com/media/xUPGcguWZHRC2HyBRS/giphy.gif"
-      },
-      "key": 2
-    },
-    {
-      "tagName": "p",
-      "attributes": {},
-      "children": [
-        "What will ",
-        {
-          "tagName": "b",
-          "attributes": {},
-          "children": "you",
-          "key": 1
-        },
-        " create next?"
-      ],
-      "key": 3
-    }
-  ]
-}
diff --git a/examples/vdom/vdom.ipynb b/examples/vdom/vdom.ipynb
deleted file mode 100644
index 1277a3992f73..000000000000
--- a/examples/vdom/vdom.ipynb
+++ /dev/null
@@ -1,115 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Render VDOM `json` in Python"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "from IPython.display import display\n",
-    "\n",
-    "def VDOM(data={}):\n",
-    "    bundle = {}\n",
-    "    bundle['application/vdom.v1+json'] = data\n",
-    "    display(bundle, raw=True)\n",
-    "\n",
-    "VDOM({\n",
-    "    'tagName': 'div',\n",
-    "    'attributes': {},\n",
-    "    'children': [{\n",
-    "        'tagName': 'h1',\n",
-    "        'attributes': {},\n",
-    "        'children': 'Our Incredibly Declarative Example',\n",
-    "        'key': 0\n",
-    "    }, {\n",
-    "        'tagName': 'p',\n",
-    "        'attributes': {},\n",
-    "        'children': ['Can you believe we wrote this ', {\n",
-    "            'tagName': 'b',\n",
-    "            'attributes': {},\n",
-    "            'children': 'in Python',\n",
-    "            'key': 1\n",
-    "        }, '?'],\n",
-    "        'key': 1\n",
-    "    }, {\n",
-    "        'tagName': 'img',\n",
-    "        'attributes': {\n",
-    "            'src': 'https://media.giphy.com/media/xUPGcguWZHRC2HyBRS/giphy.gif'\n",
-    "        },\n",
-    "        'key': 2\n",
-    "    }, {\n",
-    "        'tagName': 'p',\n",
-    "        'attributes': {},\n",
-    "        'children': ['What will ', {\n",
-    "            'tagName': 'b',\n",
-    "            'attributes': {},\n",
-    "            'children': 'you',\n",
-    "            'key': 1\n",
-    "        }, ' create next?'],\n",
-    "        'key': 3\n",
-    "    }]\n",
-    "})"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# Render VDOM using the `vdom` Python package\n",
-    "\n",
-    "May need to first run `pip install vdom`"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "from vdom import h1, p, img, div, b\n",
-    "\n",
-    "div(\n",
-    "    h1('Our Incredibly Declarative Example'),\n",
-    "    p('Can you believe we wrote this ', b('in Python'), '?'),\n",
-    "    img(src=\"https://media.giphy.com/media/xUPGcguWZHRC2HyBRS/giphy.gif\"),\n",
-    "    p('What will ', b('you'), ' create next?'),\n",
-    ")"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.3"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 4
-}
diff --git a/examples/vega/vega-extension.ipynb b/examples/vega/vega-extension.ipynb
index 5cc5c965ec6b..031266a8816c 100644
--- a/examples/vega/vega-extension.ipynb
+++ b/examples/vega/vega-extension.ipynb
@@ -19,11 +19,13 @@
     "from IPython.display import display\n",
     "import pandas as pd\n",
     "\n",
+    "\n",
     "def Vega(spec):\n",
     "    bundle = {}\n",
     "    bundle['application/vnd.vega.v5+json'] = spec\n",
     "    display(bundle, raw=True)\n",
     "\n",
+    "\n",
     "def VegaLite(spec):\n",
     "    bundle = {}\n",
     "    bundle['application/vnd.vegalite.v4+json'] = spec\n",
@@ -225,101 +227,88 @@
     }
    ],
    "source": [
-    "Vega({\n",
-    "  \"$schema\": \"https://vega.github.io/schema/vega/v5.0.json\",\n",
-    "  \"width\": 400,\n",
-    "  \"height\": 200,\n",
-    "  \"padding\": 5,\n",
-    "\n",
-    "  \"data\": [\n",
-    "    {\n",
-    "      \"name\": \"table\",\n",
-    "      \"values\": [\n",
-    "        {\"category\": \"A\", \"amount\": 28},\n",
-    "        {\"category\": \"B\", \"amount\": 55},\n",
-    "        {\"category\": \"C\", \"amount\": 43},\n",
-    "        {\"category\": \"D\", \"amount\": 91},\n",
-    "        {\"category\": \"E\", \"amount\": 81},\n",
-    "        {\"category\": \"F\", \"amount\": 53},\n",
-    "        {\"category\": \"G\", \"amount\": 19},\n",
-    "        {\"category\": \"H\", \"amount\": 87}\n",
-    "      ]\n",
-    "    }\n",
-    "  ],\n",
-    "\n",
-    "  \"signals\": [\n",
-    "    {\n",
-    "      \"name\": \"tooltip\",\n",
-    "      \"value\": {},\n",
-    "      \"on\": [\n",
-    "        {\"events\": \"rect:mouseover\", \"update\": \"datum\"},\n",
-    "        {\"events\": \"rect:mouseout\",  \"update\": \"{}\"}\n",
-    "      ]\n",
-    "    }\n",
-    "  ],\n",
-    "\n",
-    "  \"scales\": [\n",
-    "    {\n",
-    "      \"name\": \"xscale\",\n",
-    "      \"type\": \"band\",\n",
-    "      \"domain\": {\"data\": \"table\", \"field\": \"category\"},\n",
-    "      \"range\": \"width\",\n",
-    "      \"padding\": 0.05,\n",
-    "      \"round\": True\n",
-    "    },\n",
-    "    {\n",
-    "      \"name\": \"yscale\",\n",
-    "      \"domain\": {\"data\": \"table\", \"field\": \"amount\"},\n",
-    "      \"nice\": True,\n",
-    "      \"range\": \"height\"\n",
-    "    }\n",
-    "  ],\n",
-    "\n",
-    "  \"axes\": [\n",
-    "    { \"orient\": \"bottom\", \"scale\": \"xscale\" },\n",
-    "    { \"orient\": \"left\", \"scale\": \"yscale\" }\n",
-    "  ],\n",
-    "\n",
-    "  \"marks\": [\n",
-    "    {\n",
-    "      \"type\": \"rect\",\n",
-    "      \"from\": {\"data\":\"table\"},\n",
-    "      \"encode\": {\n",
-    "        \"enter\": {\n",
-    "          \"x\": {\"scale\": \"xscale\", \"field\": \"category\"},\n",
-    "          \"width\": {\"scale\": \"xscale\", \"band\": 1},\n",
-    "          \"y\": {\"scale\": \"yscale\", \"field\": \"amount\"},\n",
-    "          \"y2\": {\"scale\": \"yscale\", \"value\": 0}\n",
-    "        },\n",
-    "        \"update\": {\n",
-    "          \"fill\": {\"value\": \"steelblue\"}\n",
-    "        },\n",
-    "        \"hover\": {\n",
-    "          \"fill\": {\"value\": \"red\"}\n",
-    "        }\n",
-    "      }\n",
-    "    },\n",
+    "Vega(\n",
     "    {\n",
-    "      \"type\": \"text\",\n",
-    "      \"encode\": {\n",
-    "        \"enter\": {\n",
-    "          \"align\": {\"value\": \"center\"},\n",
-    "          \"baseline\": {\"value\": \"bottom\"},\n",
-    "          \"fill\": {\"value\": \"#333\"}\n",
-    "        },\n",
-    "        \"update\": {\n",
-    "          \"x\": {\"scale\": \"xscale\", \"signal\": \"tooltip.category\", \"band\": 0.5},\n",
-    "          \"y\": {\"scale\": \"yscale\", \"signal\": \"tooltip.amount\", \"offset\": -2},\n",
-    "          \"text\": {\"signal\": \"tooltip.amount\"},\n",
-    "          \"fillOpacity\": [\n",
-    "            {\"test\": \"datum === tooltip\", \"value\": 0},\n",
-    "            {\"value\": 1}\n",
-    "          ]\n",
-    "        }\n",
-    "      }\n",
+    "        \"$schema\": \"https://vega.github.io/schema/vega/v5.0.json\",\n",
+    "        \"width\": 400,\n",
+    "        \"height\": 200,\n",
+    "        \"padding\": 5,\n",
+    "        \"data\": [\n",
+    "            {\n",
+    "                \"name\": \"table\",\n",
+    "                \"values\": [\n",
+    "                    {\"category\": \"A\", \"amount\": 28},\n",
+    "                    {\"category\": \"B\", \"amount\": 55},\n",
+    "                    {\"category\": \"C\", \"amount\": 43},\n",
+    "                    {\"category\": \"D\", \"amount\": 91},\n",
+    "                    {\"category\": \"E\", \"amount\": 81},\n",
+    "                    {\"category\": \"F\", \"amount\": 53},\n",
+    "                    {\"category\": \"G\", \"amount\": 19},\n",
+    "                    {\"category\": \"H\", \"amount\": 87},\n",
+    "                ],\n",
+    "            }\n",
+    "        ],\n",
+    "        \"signals\": [\n",
+    "            {\n",
+    "                \"name\": \"tooltip\",\n",
+    "                \"value\": {},\n",
+    "                \"on\": [\n",
+    "                    {\"events\": \"rect:mouseover\", \"update\": \"datum\"},\n",
+    "                    {\"events\": \"rect:mouseout\", \"update\": \"{}\"},\n",
+    "                ],\n",
+    "            }\n",
+    "        ],\n",
+    "        \"scales\": [\n",
+    "            {\n",
+    "                \"name\": \"xscale\",\n",
+    "                \"type\": \"band\",\n",
+    "                \"domain\": {\"data\": \"table\", \"field\": \"category\"},\n",
+    "                \"range\": \"width\",\n",
+    "                \"padding\": 0.05,\n",
+    "                \"round\": True,\n",
+    "            },\n",
+    "            {\n",
+    "                \"name\": \"yscale\",\n",
+    "                \"domain\": {\"data\": \"table\", \"field\": \"amount\"},\n",
+    "                \"nice\": True,\n",
+    "                \"range\": \"height\",\n",
+    "            },\n",
+    "        ],\n",
+    "        \"axes\": [{\"orient\": \"bottom\", \"scale\": \"xscale\"}, {\"orient\": \"left\", \"scale\": \"yscale\"}],\n",
+    "        \"marks\": [\n",
+    "            {\n",
+    "                \"type\": \"rect\",\n",
+    "                \"from\": {\"data\": \"table\"},\n",
+    "                \"encode\": {\n",
+    "                    \"enter\": {\n",
+    "                        \"x\": {\"scale\": \"xscale\", \"field\": \"category\"},\n",
+    "                        \"width\": {\"scale\": \"xscale\", \"band\": 1},\n",
+    "                        \"y\": {\"scale\": \"yscale\", \"field\": \"amount\"},\n",
+    "                        \"y2\": {\"scale\": \"yscale\", \"value\": 0},\n",
+    "                    },\n",
+    "                    \"update\": {\"fill\": {\"value\": \"steelblue\"}},\n",
+    "                    \"hover\": {\"fill\": {\"value\": \"red\"}},\n",
+    "                },\n",
+    "            },\n",
+    "            {\n",
+    "                \"type\": \"text\",\n",
+    "                \"encode\": {\n",
+    "                    \"enter\": {\n",
+    "                        \"align\": {\"value\": \"center\"},\n",
+    "                        \"baseline\": {\"value\": \"bottom\"},\n",
+    "                        \"fill\": {\"value\": \"#333\"},\n",
+    "                    },\n",
+    "                    \"update\": {\n",
+    "                        \"x\": {\"scale\": \"xscale\", \"signal\": \"tooltip.category\", \"band\": 0.5},\n",
+    "                        \"y\": {\"scale\": \"yscale\", \"signal\": \"tooltip.amount\", \"offset\": -2},\n",
+    "                        \"text\": {\"signal\": \"tooltip.amount\"},\n",
+    "                        \"fillOpacity\": [{\"test\": \"datum === tooltip\", \"value\": 0}, {\"value\": 1}],\n",
+    "                    },\n",
+    "                },\n",
+    "            },\n",
+    "        ],\n",
     "    }\n",
-    "  ]\n",
-    "})"
+    ")"
    ]
   },
   {
@@ -429,22 +418,30 @@
     }
    ],
    "source": [
-    "VegaLite({\n",
-    "  \"$schema\": \"https://vega.github.io/schema/vega-lite/v4.json\",\n",
-    "  \"description\": \"A simple bar chart with embedded data.\",\n",
-    "  \"data\": {\n",
-    "    \"values\": [\n",
-    "      {\"a\": \"A\",\"b\": 28}, {\"a\": \"B\",\"b\": 55}, {\"a\": \"C\",\"b\": 43},\n",
-    "      {\"a\": \"D\",\"b\": 91}, {\"a\": \"E\",\"b\": 81}, {\"a\": \"F\",\"b\": 53},\n",
-    "      {\"a\": \"G\",\"b\": 19}, {\"a\": \"H\",\"b\": 87}, {\"a\": \"I\",\"b\": 52}\n",
-    "    ]\n",
-    "  },\n",
-    "  \"mark\": \"bar\",\n",
-    "  \"encoding\": {\n",
-    "    \"x\": {\"field\": \"a\", \"type\": \"ordinal\"},\n",
-    "    \"y\": {\"field\": \"b\", \"type\": \"quantitative\"}\n",
-    "  }\n",
-    "})"
+    "VegaLite(\n",
+    "    {\n",
+    "        \"$schema\": \"https://vega.github.io/schema/vega-lite/v4.json\",\n",
+    "        \"description\": \"A simple bar chart with embedded data.\",\n",
+    "        \"data\": {\n",
+    "            \"values\": [\n",
+    "                {\"a\": \"A\", \"b\": 28},\n",
+    "                {\"a\": \"B\", \"b\": 55},\n",
+    "                {\"a\": \"C\", \"b\": 43},\n",
+    "                {\"a\": \"D\", \"b\": 91},\n",
+    "                {\"a\": \"E\", \"b\": 81},\n",
+    "                {\"a\": \"F\", \"b\": 53},\n",
+    "                {\"a\": \"G\", \"b\": 19},\n",
+    "                {\"a\": \"H\", \"b\": 87},\n",
+    "                {\"a\": \"I\", \"b\": 52},\n",
+    "            ]\n",
+    "        },\n",
+    "        \"mark\": \"bar\",\n",
+    "        \"encoding\": {\n",
+    "            \"x\": {\"field\": \"a\", \"type\": \"ordinal\"},\n",
+    "            \"y\": {\"field\": \"b\", \"type\": \"quantitative\"},\n",
+    "        },\n",
+    "    }\n",
+    ")"
    ]
   },
   {
diff --git a/galata/README.md b/galata/README.md
index a49e3bf53c05..65f294f57a4d 100644
--- a/galata/README.md
+++ b/galata/README.md
@@ -62,17 +62,12 @@ specific options.
 Create `jupyter_server_test_config.py` with the following content.
 
 ```py
-from tempfile import mkdtemp
+from jupyterlab.galata import configure_jupyter_server
 
-c.ServerApp.port = 8888
-c.ServerApp.port_retries = 0
-c.ServerApp.open_browser = False
+configure_jupyter_server(c)
 
-c.ServerApp.root_dir = mkdtemp(prefix='galata-test-')
-c.ServerApp.token = ""
-c.ServerApp.password = ""
-c.ServerApp.disable_check_xsrf = True
-c.LabApp.expose_app_in_browser = True
+# Uncomment to set server log level to debug level
+# c.ServerApp.log_level = "DEBUG"
 ```
 
 Then start the server with:
@@ -81,6 +76,8 @@ Then start the server with:
 jupyter lab --config jupyter_server_test_config.py
 ```
 
+> If you need to customize the set up for galata, you can look at the [`configure_jupyter_server`](https://github.com/jupyterlab/jupyterlab/tree/4.0.x/jupyterlab/galata/__init__.py) definition.
+
 ### Run test project
 
 ```bash
@@ -109,7 +106,7 @@ Test assets (including test videos) will be saved in a `test-results` folder and
 report will be created in `playwright-report` folder. That report can be see by running:
 
 ```bash
-http-server ./playwright-report -a localhost -o
+jlpm playwright show-report
 ```
 
 ## User advices
@@ -214,6 +211,73 @@ steps were successful. Its content will look like that:
 > This will only work if the authentication is stored in a cookie and you can access the Jupyter
 > app directly when that cookie is set.
 
+## Helpers
+
+### Listen to dialogs
+
+You can add a listener that will be triggered when a JupyterLab dialog is shown:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.on('dialog', (dialog: Dialog<unknown> | null) => {
+    // Use the dialog
+    // You can for instance reject it
+    // dialog.reject()
+  });
+});
+```
+
+The listener will be called when a dialog is started and when it is closed (in that case `dialog == null`).
+
+You can stop listening to the event with:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.off('dialog', listener);
+});
+```
+
+Or you can listen to a single event with:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.once('dialog', listener);
+});
+```
+
+### Listen to notification
+
+You can add a listener that will be triggered when a JupyterLab dialog is shown:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.on(
+    'notification',
+    (notification: Notification.INotification) => {
+      // Use the notification
+    }
+  );
+});
+```
+
+The listener will be called when a notification is created or updated.
+
+You can stop listening to the event with:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.off('notification', listener);
+});
+```
+
+Or you can listen to a single event with:
+
+```typescript
+await page.evaluate(() => {
+  window.galata.once('notification', listener);
+});
+```
+
 ## Fixtures
 
 Here are the new test fixture introduced by Galata on top of [Playwright fixtures](https://playwright.dev/docs/api/class-fixtures).
@@ -249,8 +313,7 @@ test('Open language menu', async ({ page }) => {
     if (request.method() === 'GET') {
       return route.fulfill({
         status: 200,
-        body:
-          '{"data": {"en": {"displayName": "English", "nativeName": "English"}}, "message": ""}'
+        body: '{"data": {"en": {"displayName": "English", "nativeName": "English"}}, "message": ""}'
       });
     } else {
       return route.continue();
@@ -370,6 +433,20 @@ test('should return mocked settings', async ({ page }) => {
 });
 ```
 
+### mockUser
+
+- type: boolean | Partial\<User.IUser>
+
+Mock JupyterLab user in-memory or not.
+
+Possible values are:
+
+- true (default): JupyterLab user will be mocked on a per test basis
+- false: JupyterLab user won't be mocked (It will be a random user so snapshots won't match)
+- Record<string, unknown>: Initial JupyterLab user - Mapping (user attribute, value).
+
+By default the user is stored in-memory.
+
 ### sessions
 
 - type: \<Map\<string, Session.IModel> | null>
@@ -479,7 +556,7 @@ Benchmark of JupyterLab is done using Playwright. The actions measured are:
 Two files are tested: a notebook with many code cells and another with many markdown cells.
 
 The test is run on the CI by comparing the result in the commit at which a PR branch started and the PR branch head on
-the same CI job to ensure using the same hardware.\
+the same CI job to ensure using the same hardware.
 The benchmark job is triggered on:
 
 - Approved PR review
@@ -500,7 +577,7 @@ A special report will be generated in the folder `benchmark-results` that will c
 - `lab-benchmark.vl.json`: The [_Vega-Lite_](https://vega.github.io/vega-lite) description used to produce the figure.
 
 The reference, tagged _expected_, is stored in `lab-benchmark-expected.json`. It can be
-updated using the `-u` option of Playwright; i.e. `jlpm run test:benchmark -u`.
+created using the `-u` option of Playwright; i.e. `jlpm run test:benchmark -u`.
 
 ### Benchmark parameters
 
@@ -508,7 +585,8 @@ The benchmark can be customized using the following environment variables:
 
 - `BENCHMARK_NUMBER_SAMPLES`: Number of samples to compute the execution time distribution; default 20.
 - `BENCHMARK_OUTPUTFILE`: Benchmark result output file; default `benchmark.json`. It is overridden in the [`playwright-benchmark.config.js`](playwright-benchmark.config.js).
-- `BENCHMARK_REFERENCE`: Reference name of the data; default is `actual` for current data and `expected` for the reference.
+- `BENCHMARK_REFERENCE`: Reference name of the data; default is `actual`.
+- `BENCHMARK_EXPECTED_REFERENCE`: Reference name of the reference data; default is `expected`.
 
 ## Development
 
diff --git a/galata/extension/README.md b/galata/extension/README.md
new file mode 100644
index 000000000000..67f7377e82da
--- /dev/null
+++ b/galata/extension/README.md
@@ -0,0 +1,4 @@
+# @jupyterlab/galata-extension
+
+This package is a JupyterLab extension easing access to some JupyterLab elements
+for integration testing with `@jupyterlab/galata`.
diff --git a/galata/extension/package.json b/galata/extension/package.json
new file mode 100644
index 000000000000..77db9e9000ae
--- /dev/null
+++ b/galata/extension/package.json
@@ -0,0 +1,56 @@
+{
+  "name": "@jupyterlab/galata-extension",
+  "version": "5.0.8",
+  "private": true,
+  "description": "JupyterLab UI Testing Framework Extension.",
+  "keywords": [
+    "jupyter",
+    "jupyterlab",
+    "jupyterlab-extension"
+  ],
+  "homepage": "https://github.com/jupyterlab/jupyterlab",
+  "bugs": {
+    "url": "https://github.com/jupyterlab/jupyterlab/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jupyterlab/jupyterlab.git"
+  },
+  "license": "BSD-3-Clause",
+  "author": "Project Jupyter",
+  "main": "../lib/extension/index.js",
+  "types": "../lib/extension/index.d.ts",
+  "files": [
+    "../lib/extension/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}"
+  ],
+  "scripts": {
+    "build": "npm run build:lib && npm run build:labextension",
+    "build:labextension": "node ../../node_modules/@jupyterlab/builder/lib/build-labextension.js --core-path ../../dev_mode --development .",
+    "build:lib": "tsc",
+    "clean": "npm run clean:lib && npm run clean:labextension",
+    "clean:labextension": "rimraf ../../jupyterlab/galata/@jupyterlab",
+    "clean:lib": "rimraf ../lib/extension tsconfig.tsbuildinfo"
+  },
+  "dependencies": {
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/debugger": "^4.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/signaling": "^2.1.2"
+  },
+  "devDependencies": {
+    "@jupyterlab/builder": "^4.0.8",
+    "rimraf": "~3.0.0",
+    "typescript": "~5.0.4"
+  },
+  "jupyterlab": {
+    "extension": true,
+    "outputDir": "../../jupyterlab/galata/@jupyterlab/galata-extension"
+  }
+}
diff --git a/galata/extension/src/global.ts b/galata/extension/src/global.ts
new file mode 100644
index 000000000000..bd42a1e9b23f
--- /dev/null
+++ b/galata/extension/src/global.ts
@@ -0,0 +1,751 @@
+/* eslint-disable @typescript-eslint/ban-types */
+// Copyright (c) Jupyter Development Team.
+// Copyright (c) Bloomberg Finance LP.
+// Distributed under the terms of the Modified BSD License.
+
+import type { IRouter, JupyterFrontEnd } from '@jupyterlab/application';
+import type {
+  Dialog,
+  IWidgetTracker,
+  Notification,
+  NotificationManager
+} from '@jupyterlab/apputils';
+import type { Cell, CodeCellModel, MarkdownCell } from '@jupyterlab/cells';
+import type * as nbformat from '@jupyterlab/nbformat';
+import type { NotebookPanel } from '@jupyterlab/notebook';
+import { findIndex } from '@lumino/algorithm';
+import { Signal } from '@lumino/signaling';
+import {
+  IGalataInpage,
+  INotebookRunCallback,
+  IPluginNameToInterfaceMap,
+  IWaitForSelectorOptions,
+  PLUGIN_ID_GALATA_HELPERS
+} from './tokens';
+
+const PLUGIN_ID_DOC_MANAGER = '@jupyterlab/docmanager-extension:manager';
+const PLUGIN_ID_ROUTER = '@jupyterlab/application-extension:router';
+
+/**
+ * In-Page Galata helpers
+ */
+export class GalataInpage implements IGalataInpage {
+  /**
+   * Get an application plugin
+   *
+   * @param pluginId Plugin ID
+   * @returns Application plugin
+   */
+  async getPlugin<K extends keyof IPluginNameToInterfaceMap>(
+    pluginId: K
+  ): Promise<IPluginNameToInterfaceMap[K] | undefined> {
+    return new Promise((resolve, reject) => {
+      const app = this._app;
+      const hasPlugin = app.hasPlugin(pluginId);
+
+      if (hasPlugin) {
+        try {
+          const appAny = app as any;
+          const plugin: any = appAny._plugins
+            ? appAny._plugins.get(pluginId)
+            : undefined;
+          if (plugin.activated) {
+            resolve(plugin.service);
+          } else {
+            void app.activatePlugin(pluginId).then(response => {
+              resolve(plugin.service);
+            });
+          }
+        } catch (error) {
+          console.error('Failed to get plugin', error);
+        }
+      }
+    });
+  }
+
+  /**
+   * Get the Jupyter notifications
+   *
+   * @returns Jupyter Notifications
+   */
+  async getNotifications(): Promise<Notification.INotification[]> {
+    const plugin = await this.getPlugin(PLUGIN_ID_GALATA_HELPERS);
+    return plugin?.notifications.notifications ?? [];
+  }
+
+  /**
+   * Disconnect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+  /**
+   * Disconnect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+  off(event: 'dialog' | 'notification', listener: (arg: any) => void): void {
+    const callback = this.listeners.get(listener);
+    if (callback) {
+      this.getPlugin(PLUGIN_ID_GALATA_HELPERS)
+        .then(plugin => {
+          if (!plugin) {
+            return;
+          }
+          switch (event) {
+            case 'dialog':
+              plugin.dialogs.currentChanged.disconnect(callback);
+              break;
+            case 'notification':
+              plugin.notifications.changed.disconnect(callback);
+              break;
+          }
+          this.listeners.delete(listener);
+        })
+        .catch(reason => {
+          console.log(
+            `Failed to disconnect listener for '${event}' event.`,
+            reason
+          );
+        });
+    }
+  }
+
+  /**
+   * Connect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+  on(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+  /**
+   * Connect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(event: 'dialog' | 'notification', listener: (arg: any) => void): void {
+    this.getPlugin(PLUGIN_ID_GALATA_HELPERS)
+      .then(plugin => {
+        switch (event) {
+          case 'dialog':
+            {
+              const callback = (
+                tracker: IWidgetTracker<Dialog<any>>,
+                dialog: Dialog<any> | null
+              ) => {
+                listener(dialog);
+              };
+              this.listeners.set(listener, callback);
+              plugin?.dialogs.currentChanged.connect(callback);
+            }
+            break;
+          case 'notification':
+            {
+              const callback = (
+                manager: NotificationManager,
+                notification: Notification.IChange
+              ) => {
+                if (notification.type !== 'removed') {
+                  listener(notification.notification);
+                }
+              };
+              this.listeners.set(listener, callback);
+              plugin?.notifications.changed.connect(callback);
+            }
+            break;
+        }
+      })
+      .catch(reason => {
+        console.error(
+          `Failed to add listener to JupyterLab dialog event:\n${reason}`
+        );
+      });
+  }
+
+  /**
+   * Connect a listener to the next new Jupyter dialog event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+  /**
+   * Connect a listener to the next new or updated Jupyter notification event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+  once(event: 'dialog' | 'notification', listener: (arg: any) => void): void {
+    const onceListener = (arg: any) => {
+      try {
+        listener(arg);
+      } finally {
+        this.off(event as any, onceListener);
+      }
+    };
+    this.on(event as any, onceListener);
+  }
+
+  /**
+   * Wait for a function to finish for max. timeout milliseconds
+   *
+   * @param fn Function
+   * @param timeout Timeout
+   */
+  async waitForFunction(fn: Function, timeout?: number): Promise<void> {
+    return new Promise((resolve, reject) => {
+      let checkTimer: number | null = null;
+      let timeoutTimer: number | null = null;
+      const check = async () => {
+        checkTimer = null;
+        if (await Promise.resolve(fn())) {
+          if (timeoutTimer) {
+            clearTimeout(timeoutTimer);
+          }
+          resolve();
+        } else {
+          checkTimer = window.setTimeout(check, 200);
+        }
+      };
+
+      void check();
+
+      if (timeout) {
+        timeoutTimer = window.setTimeout(() => {
+          timeoutTimer = null;
+          if (checkTimer) {
+            clearTimeout(checkTimer);
+          }
+          reject(new Error('Timed out waiting for condition to be fulfilled.'));
+        }, timeout);
+      }
+    });
+  }
+
+  /**
+   * Waits for the given `timeout` in milliseconds.
+   *
+   * @param timeout A timeout to wait for
+   */
+  async waitForTimeout(timeout: number): Promise<void> {
+    return new Promise(resolve => {
+      setTimeout(() => {
+        resolve();
+      }, timeout);
+    });
+  }
+
+  /**
+   * Wait for a condition to fulfill or for a certain time
+   *
+   * @param condition Condition or timeout to wait for
+   * @param timeout Timeout
+   */
+  async waitFor(condition: Function | number, timeout?: number): Promise<void> {
+    const conditionType = typeof condition;
+
+    if (conditionType === 'function') {
+      return this.waitForFunction(condition as Function, timeout);
+    } else if (conditionType === 'number') {
+      return this.waitForTimeout(condition as number);
+    }
+  }
+
+  /**
+   * Wait for the route to be on path and close all documents
+   *
+   * @param path Path to monitor
+   */
+  async waitForLaunch(path = '/lab'): Promise<void> {
+    let resolver: () => void;
+    const delegate = new Promise<void>(resolve => {
+      resolver = resolve;
+    });
+    const router = await this.getPlugin(PLUGIN_ID_ROUTER);
+    const docManager = await this.getPlugin(PLUGIN_ID_DOC_MANAGER);
+
+    const listener = async (sender: IRouter, args: IRouter.ILocation) => {
+      if (args.path === path) {
+        router?.routed.disconnect(listener);
+        await docManager?.closeAll();
+        resolver();
+      }
+    };
+
+    router?.routed.connect(listener);
+    return delegate;
+  }
+
+  /**
+   * Wait for an element to be found from a CSS selector
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  async waitForSelector(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null> {
+    const waitForHidden = options && options.hidden;
+
+    return new Promise((resolve, reject) => {
+      const timer = setInterval(() => {
+        const parent = node || document;
+        const found = parent.querySelector(selector);
+        if (waitForHidden) {
+          if (!found) {
+            clearInterval(timer);
+            resolve(null);
+          }
+        } else if (found) {
+          clearInterval(timer);
+          resolve(found);
+        }
+      }, 200);
+    });
+  }
+
+  /**
+   * Wait for an element to be found from a XPath
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  async waitForXPath(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null> {
+    const waitForHidden = options && options.hidden;
+
+    return new Promise((resolve, reject) => {
+      const timer = setInterval(() => {
+        const parent = node || document;
+        const iterator = document.evaluate(
+          selector,
+          parent,
+          null,
+          XPathResult.UNORDERED_NODE_ITERATOR_TYPE,
+          null
+        );
+        const found = iterator && iterator.iterateNext();
+        if (waitForHidden) {
+          if (!found) {
+            clearInterval(timer);
+            resolve(null);
+          }
+        } else if (found) {
+          clearInterval(timer);
+          resolve(found);
+        }
+      }, 200);
+    });
+  }
+
+  /**
+   * Delete all cells of the active notebook
+   */
+  async deleteNotebookCells(): Promise<void> {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    void this._app.commands.execute('notebook:delete-cell');
+
+    nb.update();
+  }
+  /**
+   * Add a cell to the active notebook
+   *
+   * @param cellType Cell type
+   * @param source Cell input source
+   * @returns Action success result
+   */
+  addNotebookCell(cellType: nbformat.CellType, source: string): boolean {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    if (nb !== null) {
+      void this._app.commands.execute('notebook:insert-cell-below');
+
+      if (nb.model) {
+        const sharedModel = nb.model.sharedModel;
+        sharedModel.insertCell(sharedModel.cells.length, {
+          cell_type: cellType,
+          source
+        });
+      }
+      nb.update();
+    } else {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Reset execution count of one or all cells.
+   *
+   * @param cellIndex Cell index
+   */
+  resetExecutionCount(cellIndex?: number): void {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    if (nb) {
+      if (nb.model) {
+        if (cellIndex === undefined) {
+          for (const cell of nb.model.cells) {
+            switch (cell.type) {
+              case 'code':
+                (cell as CodeCellModel).executionCount = null;
+                break;
+            }
+          }
+        } else if (nb.model.cells.get(cellIndex)?.type === 'code') {
+          (nb.model.cells.get(cellIndex) as CodeCellModel).executionCount =
+            null;
+        }
+      }
+    }
+  }
+
+  /**
+   * Set the type and content of a cell in the active notebook
+   *
+   * @param cellIndex Cell index
+   * @param cellType Cell type
+   * @param source Cell input source
+   * @returns Action success status
+   */
+  setNotebookCell(
+    cellIndex: number,
+    cellType: nbformat.CellType,
+    source: string
+  ): boolean {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    if (nb) {
+      const numCells = nb.widgets.length;
+      if (cellIndex < 0 || cellIndex >= numCells) {
+        return false;
+      }
+
+      if (nb.model) {
+        const sharedModel = nb.model.sharedModel;
+        sharedModel.transact(() => {
+          sharedModel.deleteCell(cellIndex);
+          sharedModel.insertCell(cellIndex, { cell_type: cellType, source });
+        });
+      }
+      nb.update();
+    } else {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Test if a cell is selected in the active notebook
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell is selected or not
+   */
+  isNotebookCellSelected(cellIndex: number): boolean {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    const numCells = nb.widgets.length;
+    if (cellIndex < 0 || cellIndex >= numCells) {
+      return false;
+    }
+
+    return nb.isSelected(nb.widgets[cellIndex]);
+  }
+
+  /**
+   * Save the active notebook
+   */
+  async saveActiveNotebook(): Promise<void> {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    await nbPanel.context.save();
+  }
+
+  /**
+   * Wait for a Markdown cell to be rendered
+   *
+   * @param cell Cell
+   */
+  async waitForMarkdownCellRendered(cell: MarkdownCell): Promise<void> {
+    if (!cell.inViewport) {
+      return;
+    }
+
+    await cell.ready;
+
+    if (cell.rendered) {
+      return;
+    }
+
+    let resolver: (value: void | PromiseLike<void>) => void;
+    const delegate = new Promise<void>(resolve => {
+      resolver = resolve;
+    });
+
+    const onRenderedChanged = () => {
+      Signal.disconnectReceiver(onRenderedChanged);
+      resolver();
+    };
+
+    cell.renderedChanged.connect(onRenderedChanged);
+
+    return delegate;
+  }
+
+  /**
+   * Wait for a cell to be run
+   *
+   * @param cell Cell
+   * @param timeout Timeout
+   */
+  async waitForCellRun(cell: Cell, timeout = 2000): Promise<void> {
+    const model = cell.model;
+    const code = model.sharedModel.getSource();
+    if (!code.trim()) {
+      return;
+    }
+
+    const cellType = cell.model.type;
+    if (cellType === 'markdown') {
+      await this.waitForMarkdownCellRendered(cell as MarkdownCell);
+      return;
+    } else if (cellType === 'raw') {
+      return;
+    } else {
+      // 'code'
+      let resolver: () => void;
+      const delegate = new Promise<void>(resolve => {
+        resolver = resolve;
+      });
+
+      let numTries = 0;
+      let timer: any = null;
+      let timeoutTimer: any = null;
+
+      const clearAndResolve = () => {
+        clearInterval(timer);
+        timer = null;
+        clearTimeout(timeoutTimer);
+        timeoutTimer = null;
+        resolver();
+      };
+
+      const startTimeout = () => {
+        if (!timeoutTimer) {
+          timeoutTimer = setTimeout(() => {
+            clearAndResolve();
+          }, timeout);
+        }
+      };
+
+      const checkIfDone = () => {
+        if ((cell.model as CodeCellModel).executionCount !== null) {
+          if (!cell.inViewport) {
+            clearAndResolve();
+            return;
+          }
+
+          const output = cell.node.querySelector(
+            '.jp-Cell-outputArea .jp-OutputArea-output'
+          );
+
+          if (output) {
+            if (output.textContent === 'Loading widget...') {
+              startTimeout();
+            } else {
+              clearAndResolve();
+            }
+          } else {
+            if (numTries > 0) {
+              clearAndResolve();
+            }
+          }
+        } else {
+          startTimeout();
+        }
+        numTries++;
+      };
+
+      checkIfDone();
+
+      timer = setInterval(() => {
+        checkIfDone();
+      }, 200);
+      return delegate;
+    }
+  }
+
+  /**
+   * Run the active notebook cell by cell
+   * and execute the callback after each cell execution
+   *
+   * @param callback Callback
+   */
+  async runActiveNotebookCellByCell(
+    callback?: INotebookRunCallback
+  ): Promise<void> {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const notebook = nbPanel.content;
+    if (!notebook.widgets) {
+      console.error('NOTEBOOK CELL PROBLEM', notebook);
+    }
+    const numCells = notebook.widgets.length;
+
+    if (numCells === 0) {
+      return;
+    }
+
+    void this._app.commands.execute('notebook:deselect-all');
+
+    for (let i = 0; i < numCells; ++i) {
+      const cell = notebook.widgets[i];
+      notebook.activeCellIndex = i;
+      notebook.select(cell);
+
+      await this._app.commands.execute('notebook:run-cell');
+
+      await this.waitForCellRun(cell);
+
+      if (callback?.onAfterCellRun) {
+        await callback.onAfterCellRun(i);
+      }
+
+      if (callback?.onBeforeScroll) {
+        await callback.onBeforeScroll();
+      }
+
+      await notebook.scrollToItem(i).catch(reason => {
+        // no-op
+      });
+
+      if (callback?.onAfterScroll) {
+        await callback.onAfterScroll();
+      }
+    }
+  }
+
+  /**
+   * Test if one or all cells have an execution number.
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell was executed or not
+   *
+   * ### Notes
+   * It checks that no cells have a `null` execution count.
+   */
+  haveBeenExecuted(cellIndex?: number): boolean {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    const nb = nbPanel.content;
+
+    let counter = 0;
+    if (nb) {
+      if (nb.model) {
+        if (cellIndex === undefined) {
+          for (const cell of nb.model.cells) {
+            if (cell.type === 'code') {
+              counter +=
+                cell.sharedModel.getSource().length > 0 &&
+                (cell as CodeCellModel).executionCount === null
+                  ? 1
+                  : 0;
+            }
+          }
+        } else {
+          const cell = nb.model.cells.get(cellIndex);
+          if (cell?.type === 'code') {
+            counter +=
+              cell.sharedModel.getSource().length > 0 &&
+              (cell as CodeCellModel).executionCount === null
+                ? 1
+                : 0;
+          }
+        }
+      }
+    }
+
+    return counter === 0;
+  }
+
+  /**
+   * Get the index of a toolbar item
+   *
+   * @param itemName Item name
+   * @returns Index
+   */
+  getNotebookToolbarItemIndex(itemName: string): number {
+    const nbPanel = this._app.shell.currentWidget as NotebookPanel;
+    return findIndex(nbPanel.toolbar.names(), name => name === itemName);
+  }
+
+  /**
+   * Test if a element is visible or not
+   *
+   * @param el Element
+   * @returns Test result
+   */
+  isElementVisible(el: HTMLElement): boolean {
+    return !!(el.offsetWidth || el.offsetHeight || el.getClientRects().length);
+  }
+
+  /**
+   * Set the application theme
+   *
+   * @param themeName Theme name
+   */
+  async setTheme(themeName: string): Promise<void> {
+    await this._app.commands.execute('apputils:change-theme', {
+      theme: themeName
+    });
+
+    await this.waitFor(async () => {
+      return document.body.dataset.jpThemeName === themeName;
+    });
+  }
+
+  /**
+   * Application object
+   */
+  get app(): JupyterFrontEnd {
+    if (!this._app) {
+      this._app = window.jupyterapp;
+    }
+    return this._app;
+  }
+
+  private _app: JupyterFrontEnd;
+  protected listeners = new WeakMap<
+    (arg: unknown) => void,
+    (sender: unknown, args: unknown) => void
+  >();
+}
diff --git a/galata/extension/src/index.ts b/galata/extension/src/index.ts
new file mode 100644
index 000000000000..e655be55260e
--- /dev/null
+++ b/galata/extension/src/index.ts
@@ -0,0 +1,42 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import { Dialog, Notification } from '@jupyterlab/apputils';
+import { GalataInpage } from './global';
+import { IGalataHelpers, PLUGIN_ID_GALATA_HELPERS } from './tokens';
+
+export type {
+  IGalataInpage,
+  INotebookRunCallback,
+  IPluginNameToInterfaceMap,
+  IWaitForSelectorOptions
+} from './tokens';
+
+export { IGalataHelpers } from './tokens';
+
+/**
+ * Galata in-page object
+ */
+window.galata = new GalataInpage();
+/**
+ * Galata in-page object
+ * @deprecated
+ */
+window.galataip = window.galata;
+
+const galataPlugin: JupyterFrontEndPlugin<IGalataHelpers> = {
+  id: PLUGIN_ID_GALATA_HELPERS,
+  autoStart: true,
+  activate: (app: JupyterFrontEnd): IGalataHelpers => {
+    return Object.freeze({
+      notifications: Notification.manager,
+      dialogs: Dialog.tracker
+    });
+  }
+};
+
+export default galataPlugin;
diff --git a/galata/extension/src/tokens.ts b/galata/extension/src/tokens.ts
new file mode 100644
index 000000000000..1a30c3c99fa3
--- /dev/null
+++ b/galata/extension/src/tokens.ts
@@ -0,0 +1,293 @@
+// Copyright (c) Jupyter Development Team.
+// Copyright (c) Bloomberg Finance LP.
+// Distributed under the terms of the Modified BSD License.
+
+import type { JupyterFrontEnd } from '@jupyterlab/application';
+import type { IRouter } from '@jupyterlab/application';
+import type {
+  Dialog,
+  Notification,
+  NotificationManager,
+  WidgetTracker
+} from '@jupyterlab/apputils';
+import type { IDebugger } from '@jupyterlab/debugger';
+import type { IDocumentManager } from '@jupyterlab/docmanager';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { Token } from '@lumino/coreutils';
+
+declare global {
+  // eslint-disable-next-line @typescript-eslint/naming-convention
+  interface Window {
+    /**
+     * Access Jupyter Application object
+     */
+    jupyterapp: JupyterFrontEnd;
+    /**
+     * Access to Galata In-Page helpers
+     *
+     * Those helpers are injected through a JupyterLab extension
+     */
+    galata: IGalataInpage;
+    /**
+     * Access to Galata In-Page helpers
+     *
+     * @deprecated since v4
+     * Those helpers are injected through a JupyterLab extension
+     */
+    galataip: IGalataInpage;
+  }
+}
+
+/**
+ * Galata in-page extension helpers.
+ */
+export const PLUGIN_ID_GALATA_HELPERS = '@jupyterlab/galata-extension:helpers';
+
+/**
+ * Static objects exposed.
+ */
+export interface IGalataHelpers {
+  /**
+   * JupyterLab dialogs tracker.
+   */
+  readonly dialogs: WidgetTracker<Dialog<any>>;
+  /**
+   * JupyterLab notifications manager.
+   */
+  readonly notifications: NotificationManager;
+}
+
+/**
+ * Test token exposing some static JupyterLab objects.
+ */
+export const IGalataHelpers = new Token<IGalataHelpers>(
+  '@jupyterlab/galata-extension:IGalataHelpers'
+);
+
+/**
+ * Cell execution callbacks interface
+ */
+export interface INotebookRunCallback {
+  /**
+   * Callback before scrolling to the cell
+   */
+  onBeforeScroll?: () => Promise<void>;
+  /**
+   * Callback after scrolling to the cell
+   */
+  onAfterScroll?: () => Promise<void>;
+  /**
+   * Callback after cell execution
+   */
+  onAfterCellRun?: (cellIndex: number) => Promise<void>;
+}
+
+/**
+ * waitForSelector options
+ */
+export interface IWaitForSelectorOptions {
+  /**
+   * Test for the element to be hidden.
+   */
+  hidden?: boolean;
+}
+
+export interface IPluginNameToInterfaceMap {
+  [PLUGIN_ID_GALATA_HELPERS]: IGalataHelpers;
+  '@jupyterlab/application-extension:router': IRouter;
+  '@jupyterlab/docmanager-extension:manager': IDocumentManager;
+  '@jupyterlab/apputils-extension:settings': ISettingRegistry;
+  '@jupyterlab/debugger-extension:service': IDebugger;
+}
+
+/**
+ * Galata In-Page interface
+ */
+export interface IGalataInpage {
+  /**
+   * Delete all cells of the active notebook
+   */
+  deleteNotebookCells(): Promise<void>;
+
+  /**
+   * Get the index of a toolbar item
+   *
+   * @param itemName Item name
+   * @returns Index
+   */
+  getNotebookToolbarItemIndex(itemName: string): number;
+
+  /**
+   * Get an application plugin
+   *
+   * @param pluginId Plugin ID
+   * @returns Application plugin
+   */
+  getPlugin<K extends keyof IPluginNameToInterfaceMap>(
+    pluginId: K
+  ): Promise<IPluginNameToInterfaceMap[K] | undefined>;
+
+  /**
+   * Get the Jupyter notifications.
+   *
+   * @returns Jupyter Notifications
+   */
+  getNotifications(): Promise<Notification.INotification[]>;
+
+  /**
+   * Test if one or all cells have an execution number.
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell was executed or not
+   *
+   * ### Notes
+   * It checks that no cells have a `null` execution count.
+   */
+  haveBeenExecuted(cellIndex?: number): boolean;
+
+  /**
+   * Test if a cell is selected in the active notebook
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell is selected or not
+   */
+  isNotebookCellSelected(cellIndex: number): boolean;
+
+  /**
+   * Test if a element is visible or not
+   *
+   * @param el Element
+   * @returns Test result
+   */
+  isElementVisible(el: HTMLElement): boolean;
+
+  /**
+   * Disconnect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+  /**
+   * Disconnect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Connect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+
+  /**
+   * Connect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Connect a listener to the next new Jupyter dialog event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+
+  /**
+   * Connect a listener to the next new or updated Jupyter notification event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Save the active notebook
+   */
+  saveActiveNotebook(): Promise<void>;
+
+  /**
+   * Set the application theme
+   *
+   * @param themeName Theme name
+   */
+  setTheme(themeName: string): Promise<void>;
+
+  /**
+   * Reset execution count of one or all cells.
+   *
+   * @param cellIndex Cell index
+   */
+  resetExecutionCount(cellIndex?: number): void;
+
+  /**
+   * Run the active notebook cell by cell
+   * and execute the callback after each cell execution
+   *
+   * @param callback Callback
+   */
+  runActiveNotebookCellByCell(callback?: INotebookRunCallback): Promise<void>;
+
+  /**
+   * Wait for the route to be on path and close all documents
+   *
+   * @param path Path to monitor
+   */
+  waitForLaunch(path?: string): Promise<void>;
+
+  /**
+   * Wait for an element to be found from a CSS selector
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  waitForSelector(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null>;
+
+  /**
+   * Waits for the given `timeout` in milliseconds.
+   *
+   * @param timeout A timeout to wait for
+   */
+  waitForTimeout(duration: number): Promise<void>;
+
+  /**
+   * Wait for an element to be found from a XPath
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  waitForXPath(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null>;
+
+  /**
+   * Application object
+   */
+  readonly app: JupyterFrontEnd;
+}
diff --git a/galata/extension/tsconfig.json b/galata/extension/tsconfig.json
new file mode 100644
index 000000000000..c98b0c0868e5
--- /dev/null
+++ b/galata/extension/tsconfig.json
@@ -0,0 +1,34 @@
+{
+  "extends": "../../tsconfigbase",
+  "compilerOptions": {
+    "outDir": "../lib/extension",
+    "rootDir": "src"
+  },
+  "include": ["src/*"],
+  "references": [
+    {
+      "path": "../../packages/application"
+    },
+    {
+      "path": "../../packages/apputils"
+    },
+    {
+      "path": "../../packages/cells"
+    },
+    {
+      "path": "../../packages/debugger"
+    },
+    {
+      "path": "../../packages/docmanager"
+    },
+    {
+      "path": "../../packages/nbformat"
+    },
+    {
+      "path": "../../packages/notebook"
+    },
+    {
+      "path": "../../packages/settingregistry"
+    }
+  ]
+}
diff --git a/galata/jupyter_server_test_config.py b/galata/jupyter_server_test_config.py
index 0e659bcb7060..346f0c12c78c 100644
--- a/galata/jupyter_server_test_config.py
+++ b/galata/jupyter_server_test_config.py
@@ -1,17 +1,10 @@
-import getpass
-from tempfile import mkdtemp
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
 
-# Test if we are running in a docker
-if getpass.getuser() == "jovyan":
-    c.ServerApp.ip = "0.0.0.0"
+from jupyterlab.galata import configure_jupyter_server
 
-c.ServerApp.port = 8888
-c.ServerApp.port_retries = 0
-c.ServerApp.open_browser = False
+configure_jupyter_server(c)
 c.LabApp.dev_mode = True
 
-c.ServerApp.root_dir = mkdtemp(prefix="galata-test-")
-c.ServerApp.token = ""
-c.ServerApp.password = ""
-c.ServerApp.disable_check_xsrf = True
-c.LabApp.expose_app_in_browser = True
+# Uncomment to set server log level to debug level
+# c.ServerApp.log_level = "DEBUG"
diff --git a/galata/media/galata-logo.svg b/galata/media/galata-logo.svg
index 5da313b25012..42982e5a3813 100644
--- a/galata/media/galata-logo.svg
+++ b/galata/media/galata-logo.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="90" height="90" viewBox="0 0 19.932 19.932" style="zoom:1"><circle cy="10.154" fill="#F37726" r="5.809" cx="8.987"/><g transform="matrix(.3 0 0 .3 3 3)"><g style="mix-blend-mode:normal"><use xlink:href="#prefix__a" transform="translate(31.3 .31)" fill="#767677" style="mix-blend-mode:normal"/><use xlink:href="#prefix__b" transform="translate(1.8 42.81)" fill="#989798" style="mix-blend-mode:normal"/><use xlink:href="#prefix__c" transform="translate(.36 5.06)" fill="#6F7070" style="mix-blend-mode:normal"/></g><defs><path id="prefix__a" d="M5.894 2.844a2.993 2.993 0 01-.426 1.672A2.957 2.957 0 014.193 5.67a2.926 2.926 0 01-3.238-.505 2.997 2.997 0 01-.776-3.21C.379 1.4.737.92 1.208.574A2.932 2.932 0 014.94.783c.576.532.919 1.274.953 2.061z"/><path id="prefix__b" d="M7.428 3.583a3.772 3.772 0 01-.536 2.11 3.727 3.727 0 01-1.608 1.452 3.688 3.688 0 01-4.082-.638A3.754 3.754 0 01.105 4.632a3.778 3.778 0 01.122-2.173A3.744 3.744 0 011.526.72 3.696 3.696 0 016.23.988a3.76 3.76 0 011.198 2.595z"/><path id="prefix__c" d="M2.275 4.396a2.166 2.166 0 01-1.227-.318 2.193 2.193 0 01-.845-.951A2.216 2.216 0 01.575.71 2.163 2.163 0 012.931.134c.405.15.757.418 1.011.77a2.211 2.211 0 01-.156 2.783c-.39.43-.934.684-1.511.71z"/></defs></g><path d="M13.089 9.551v-.289h.227v-.326h-.34v-.374h-.34v-.806h.275v-.274h-.812l-.627-1.86v-.649h-.244l-1.179-3.639h-.038V1.17a.19.19 0 00.148-.188.188.188 0 00-.148-.188V0h-.084v.793c-.088.02-.152.096-.152.189s.063.17.151.188v.164h-.04L8.705 4.973h-.239v.648l-.634 1.86h-.808v.273h.275v.807h-.341v.373h-.341v.326h.229v.289h.112v2.072h-.342v.321h.229v.291h.112v7.699h6.021v-7.699h.111v-.291h.227v-.321h-.34v-2.07h.113M8.112 8.094c.162 0 .294.133.294.293 0 .021-.002.035-.004.055v.607h-.581v-.608a.296.296 0 01.291-.347M7.979 14v.483h-.462V14c-.004-.017-.004-.027-.004-.045a.234.234 0 01.468 0c.002.018 0 .029-.002.045m.597-3.537v.889h-.85v-.889a.433.433 0 11.85 0m.502-2.076c0-.16.132-.293.294-.293.165 0 .294.133.294.293 0 .021 0 .035-.003.055v.607h-.581v-.608c-.002-.019-.004-.035-.004-.054M10.234 14v.483h-.46V14a.168.168 0 01-.006-.045.233.233 0 01.468 0 .112.112 0 01-.002.045m.195-3.537v.889h-.85v-.889a.431.431 0 11.858-.076c-.001.025-.005.051-.008.076m.496-2.022v.607h-.58v-.607a.295.295 0 11.586-.055c0 .02-.004.036-.006.055m.971-.347c.164 0 .293.133.293.293l-.002.055v.607h-.578v-.608c-.006-.02-.006-.034-.006-.055 0-.159.131-.292.293-.292m-.471 2.293a.432.432 0 11.856.076v.889h-.85v-.889c-.002-.025-.006-.051-.006-.076M12.49 14v.483h-.459V14c-.006-.017-.006-.027-.006-.045a.234.234 0 01.468 0c.001.018-.001.029-.003.045" fill="#cabcac" stroke-width=".3" stroke="#404040"/></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="90" height="90" viewBox="0 0 19.932 19.932" style="zoom:1"><circle cy="10.154" fill="#F37726" r="5.809" cx="8.987"/><g transform="matrix(.3 0 0 .3 3 3)"><g style="mix-blend-mode:normal"><use xlink:href="#prefix__a" transform="translate(31.3 .31)" fill="#767677" style="mix-blend-mode:normal"/><use xlink:href="#prefix__b" transform="translate(1.8 42.81)" fill="#989798" style="mix-blend-mode:normal"/><use xlink:href="#prefix__c" transform="translate(.36 5.06)" fill="#6F7070" style="mix-blend-mode:normal"/></g><defs><path id="prefix__a" d="M5.894 2.844a2.993 2.993 0 01-.426 1.672A2.957 2.957 0 014.193 5.67a2.926 2.926 0 01-3.238-.505 2.997 2.997 0 01-.776-3.21C.379 1.4.737.92 1.208.574A2.932 2.932 0 014.94.783c.576.532.919 1.274.953 2.061z"/><path id="prefix__b" d="M7.428 3.583a3.772 3.772 0 01-.536 2.11 3.727 3.727 0 01-1.608 1.452 3.688 3.688 0 01-4.082-.638A3.754 3.754 0 01.105 4.632a3.778 3.778 0 01.122-2.173A3.744 3.744 0 011.526.72 3.696 3.696 0 016.23.988a3.76 3.76 0 011.198 2.595z"/><path id="prefix__c" d="M2.275 4.396a2.166 2.166 0 01-1.227-.318 2.193 2.193 0 01-.845-.951A2.216 2.216 0 01.575.71 2.163 2.163 0 012.931.134c.405.15.757.418 1.011.77a2.211 2.211 0 01-.156 2.783c-.39.43-.934.684-1.511.71z"/></defs></g><path d="M13.089 9.551v-.289h.227v-.326h-.34v-.374h-.34v-.806h.275v-.274h-.812l-.627-1.86v-.649h-.244l-1.179-3.639h-.038V1.17a.19.19 0 00.148-.188.188.188 0 00-.148-.188V0h-.084v.793c-.088.02-.152.096-.152.189s.063.17.151.188v.164h-.04L8.705 4.973h-.239v.648l-.634 1.86h-.808v.273h.275v.807h-.341v.373h-.341v.326h.229v.289h.112v2.072h-.342v.321h.229v.291h.112v7.699h6.021v-7.699h.111v-.291h.227v-.321h-.34v-2.07h.113M8.112 8.094c.162 0 .294.133.294.293 0 .021-.002.035-.004.055v.607h-.581v-.608a.296.296 0 01.291-.347M7.979 14v.483h-.462V14c-.004-.017-.004-.027-.004-.045a.234.234 0 01.468 0c.002.018 0 .029-.002.045m.597-3.537v.889h-.85v-.889a.433.433 0 11.85 0m.502-2.076c0-.16.132-.293.294-.293.165 0 .294.133.294.293 0 .021 0 .035-.003.055v.607h-.581v-.608c-.002-.019-.004-.035-.004-.054M10.234 14v.483h-.46V14a.168.168 0 01-.006-.045.233.233 0 01.468 0 .112.112 0 01-.002.045m.195-3.537v.889h-.85v-.889a.431.431 0 11.858-.076c-.001.025-.005.051-.008.076m.496-2.022v.607h-.58v-.607a.295.295 0 11.586-.055c0 .02-.004.036-.006.055m.971-.347c.164 0 .293.133.293.293l-.002.055v.607h-.578v-.608c-.006-.02-.006-.034-.006-.055 0-.159.131-.292.293-.292m-.471 2.293a.432.432 0 11.856.076v.889h-.85v-.889c-.002-.025-.006-.051-.006-.076M12.49 14v.483h-.459V14c-.006-.017-.006-.027-.006-.045a.234.234 0 01.468 0c.001.018-.001.029-.003.045" fill="#cabcac" stroke-width=".3" stroke="#404040"/></svg>
diff --git a/galata/package.json b/galata/package.json
index dc754d62f5ea..727026a2330b 100644
--- a/galata/package.json
+++ b/galata/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/galata",
-  "version": "4.5.6",
+  "version": "5.0.8",
   "description": "JupyterLab UI Testing Framework",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -12,81 +12,63 @@
   },
   "license": "BSD-3-Clause",
   "author": "Project Jupyter",
-  "sideEffects": [
-    "style/*.css",
-    "style/index.js"
-  ],
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
-  "style": "style/index.css",
   "directories": {
     "lib": "lib/"
   },
   "files": [
     "lib/**/*.{js,ts,map}",
-    "!lib/inpage/index.*",
     "style/index.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
-    "build": "jlpm run clean && jlpm run build:galata && jlpm run build:inpage",
-    "build:all": "npm run build",
+    "build": "npm run build:extension && npm run build:galata",
+    "build:extension": "cd extension && npm run build && cd ..",
     "build:galata": "tsc -b",
-    "build:inpage": "webpack --mode=production",
-    "clean": "rimraf lib tsconfig.tsbuildinfo",
+    "clean": "npm run clean:extension && rimraf lib tsconfig.tsbuildinfo",
+    "clean:extension": "cd extension && npm run clean && cd ..",
     "start": "jupyter lab --config ./jupyter_server_test_config.py",
-    "start:detached": "(jlpm run start&)",
-    "start:doc": "mkdir -p /tmp/dummy-server/lab && python -m http.server -d /tmp/dummy-server 8888",
+    "start:detached": "(npm run start&)",
+    "start:doc": "PYTHONWARNINGS=ignore jupyter lab --config ./jupyter_server_test_config.py --extensions-in-dev-mode",
     "test": "playwright test",
+    "test:base": "playwright test --project galata jupyterlab",
+    "test:base:update": "playwright test --project galata jupyterlab --update-snapshots",
     "test:benchmark": "jlpm run test -c playwright-benchmark.config.js",
     "test:benchmark:update": "BENCHMARK_NUMBER_SAMPLES=1 jlpm run test -c playwright-benchmark.config.js --update-snapshots",
     "test:debug": "PWDEBUG=1 playwright test",
-    "test:doc": "echo \"No documentation tests\"",
-    "test:doc:update": "echo \"No documentation tests\"",
-    "test:report": "http-server ./playwright-report -a localhost -o",
-    "test:update": "playwright test --update-snapshots && jlpm test:benchmark:update"
+    "test:doc": "jlpm run test --project documentation",
+    "test:doc:update": "jlpm run test --project documentation --update-snapshots",
+    "test:report": "playwright show-report",
+    "test:update": "jlpm test:base:update && jlpm test:benchmark:update"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@playwright/test": "^1.16.2",
-    "@stdlib/stats": "^0.0.13",
-    "fs-extra": "^9.0.1",
-    "http-server": "^13.0.0",
-    "json5": "^2.1.1",
-    "node-fetch": "^2.6.0",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/debugger": "^4.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@playwright/test": "^1.32.2",
+    "@stdlib/stats": "~0.0.13",
+    "fs-extra": "^10.1.0",
+    "json5": "^2.2.3",
     "path": "~0.12.7",
     "systeminformation": "^5.8.6",
     "vega": "^5.20.0",
-    "vega-lite": "^5.1.0",
+    "vega-lite": "^5.6.1",
     "vega-statistics": "^1.7.9"
   },
   "devDependencies": {
-    "@types/node-fetch": "^2.5.4",
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "raw-loader": "~4.0.0",
     "rimraf": "~3.0.0",
-    "source-map-loader": "~1.0.2",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "svgo-loader": "^2.2.1",
-    "ts-loader": "^6.2.1",
-    "typescript": "~4.1.3",
-    "url-loader": "~4.1.0",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
-  },
-  "styleModule": "style/index.js"
+  }
 }
diff --git a/galata/playwright.config.js b/galata/playwright.config.js
index cec982e2ddbc..46d6ddd9ba14 100644
--- a/galata/playwright.config.js
+++ b/galata/playwright.config.js
@@ -6,6 +6,20 @@ var baseConfig = require('@jupyterlab/galata/lib/playwright-config');
 module.exports = {
   ...baseConfig,
   projects: [
+    {
+      name: 'documentation',
+      // Try one retry as some tests are flaky
+      retries: process.env.CI ? 2 : 0,
+      testMatch: 'test/documentation/**/*.test.ts',
+      testIgnore: '**/.ipynb_checkpoints/**',
+      timeout: 90000,
+      use: {
+        launchOptions: {
+          // Force slow motion
+          slowMo: 30
+        }
+      }
+    },
     {
       name: 'galata',
       testMatch: 'test/galata/**',
@@ -14,11 +28,16 @@ module.exports = {
     {
       name: 'jupyterlab',
       testMatch: 'test/jupyterlab/**',
-      testIgnore: '**/.ipynb_checkpoints/**'
+      testIgnore: '**/.ipynb_checkpoints/**',
+      use: {
+        contextOptions: {
+          permissions: ['clipboard-read', 'clipboard-write']
+        }
+      }
     }
   ],
   // Switch to 'always' to keep raw assets for all tests
   preserveOutput: 'failures-only', // Breaks HTML report if use.video == 'on'
   // Try one retry as some tests are flaky
-  retries: 1
+  retries: process.env.CI ? 1 : 0
 };
diff --git a/galata/src/benchmarkReporter.ts b/galata/src/benchmarkReporter.ts
index 64bf7437be8e..b5b081c13879 100644
--- a/galata/src/benchmarkReporter.ts
+++ b/galata/src/benchmarkReporter.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { JSONObject } from '@lumino/coreutils';
 import { chromium, firefox, webkit } from '@playwright/test';
 import {
@@ -339,6 +344,9 @@ class BenchmarkReporter implements Reporter {
 
     this._comparison = options.comparison ?? 'snapshot';
 
+    this._expectedReference =
+      process.env['BENCHMARK_EXPECTED_REFERENCE'] ??
+      benchmark.DEFAULT_EXPECTED_REFERENCE;
     this._reference =
       process.env['BENCHMARK_REFERENCE'] ?? benchmark.DEFAULT_REFERENCE;
 
@@ -381,9 +389,9 @@ class BenchmarkReporter implements Reporter {
         ...result.attachments
           .filter(a => a.name === benchmark.DEFAULT_NAME_ATTACHMENT)
           .map(raw => {
-            const json = (JSON.parse(
+            const json = JSON.parse(
               raw.body?.toString() ?? '{}'
-            ) as any) as benchmark.IRecord;
+            ) as any as benchmark.IRecord;
             return { ...json, reference: this._reference };
           })
       );
@@ -429,7 +437,10 @@ class BenchmarkReporter implements Reporter {
         if (!hasExpectations || this.config.updateSnapshots === 'all') {
           expectations = {
             values: report.values.map(d => {
-              return { ...d, reference: benchmark.DEFAULT_EXPECTED_REFERENCE };
+              return {
+                ...d,
+                reference: this._expectedReference
+              };
             }),
             metadata: report.metadata
           };
@@ -450,10 +461,8 @@ class BenchmarkReporter implements Reporter {
       }
 
       // - Create report
-      const [
-        reportContentString,
-        reportExtension
-      ] = await this._buildTextReport(allData);
+      const [reportContentString, reportExtension] =
+        await this._buildTextReport(allData);
       const reportFile = path.resolve(
         outputDir,
         `${baseName}.${reportExtension}`
@@ -486,7 +495,7 @@ class BenchmarkReporter implements Reporter {
    * @param allData all test records.
    * @param comparison logic of test comparisons:
    * 'snapshot' or 'project'; default 'snapshot'.
-   * @return A list of two strings, the first one
+   * @returns A list of two strings, the first one
    * is the content of report, the second one is the extension of report file.
    */
   protected async defaultTextReportFactory(
@@ -539,10 +548,12 @@ class BenchmarkReporter implements Reporter {
     }
 
     const compare =
-      (groups.values().next().value?.values().next().value as Map<
-        string,
-        Map<string, number[]>
-      >).size === 2;
+      (
+        groups.values().next().value?.values().next().value as Map<
+          string,
+          Map<string, number[]>
+        >
+      ).size === 2;
 
     // - Create report
     const reportContent = new Array<string>(
@@ -563,10 +574,13 @@ class BenchmarkReporter implements Reporter {
 
     let header = '| Test file |';
     let nFiles = 0;
-    for (const [
-      file
-    ] of groups.values().next().value.values().next().value.values().next()
-      .value) {
+    for (const [file] of groups
+      .values()
+      .next()
+      .value.values()
+      .next()
+      .value.values()
+      .next().value) {
       header += ` ${file} |`;
       nFiles++;
     }
@@ -574,7 +588,7 @@ class BenchmarkReporter implements Reporter {
     reportContent.push(new Array(nFiles + 2).fill('|').join(' --- '));
     const filler = new Array(nFiles).fill('|').join(' ');
 
-    let changeReference = benchmark.DEFAULT_EXPECTED_REFERENCE;
+    let changeReference = this._expectedReference;
 
     for (const [test, testGroup] of groups) {
       reportContent.push(`| **${test}** | ` + filler);
@@ -588,10 +602,7 @@ class BenchmarkReporter implements Reporter {
             const [q1, median, q3] = vs.quartiles(dataGroup);
 
             if (compare) {
-              if (
-                reference === benchmark.DEFAULT_REFERENCE ||
-                !actual.has(filename)
-              ) {
+              if (reference === this._reference || !actual.has(filename)) {
                 actual.set(filename, dataGroup);
               } else {
                 changeReference = reference;
@@ -661,7 +672,7 @@ class BenchmarkReporter implements Reporter {
    * @param allData all test records.
    * @param comparison logic of test comparisons:
    * 'snapshot' or 'project'; default 'snapshot'.
-   * @return VegaLite configuration
+   * @returns VegaLite configuration
    */
   protected defaultVegaLiteConfigFactory(
     allData: Array<IReportRecord>,
@@ -729,6 +740,7 @@ class BenchmarkReporter implements Reporter {
   protected config: FullConfig;
   protected suite: Suite;
   private _comparison: 'snapshot' | 'project';
+  private _expectedReference: string;
   private _outputFile: string;
   private _reference: string;
   private _report: IReportRecord[];
diff --git a/galata/src/benchmarkVLTpl.ts b/galata/src/benchmarkVLTpl.ts
index fcf2eebc3acb..2e2b8c9b2bce 100644
--- a/galata/src/benchmarkVLTpl.ts
+++ b/galata/src/benchmarkVLTpl.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 // Vega-Lite configuration
 
 /**
diff --git a/galata/src/contents.ts b/galata/src/contents.ts
index 4a375f3adc69..b3da34960dc8 100644
--- a/galata/src/contents.ts
+++ b/galata/src/contents.ts
@@ -2,15 +2,12 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { URLExt } from '@jupyterlab/coreutils';
-import { IDocumentManager } from '@jupyterlab/docmanager';
-import { Contents } from '@jupyterlab/services';
-import { APIRequestContext, APIResponse, Page } from '@playwright/test';
-import fetch, { RequestInit, Response } from 'node-fetch';
+import type { IDocumentManager } from '@jupyterlab/docmanager';
+import type { Contents } from '@jupyterlab/services';
+import type { APIRequestContext, APIResponse, Page } from '@playwright/test';
+import type { ReadStream } from 'fs-extra';
 import * as path from 'path';
-import {
-  IPluginNameToInterfaceMap,
-  PLUGIN_ID_DOC_MANAGER
-} from './inpage/tokens';
+import type { IPluginNameToInterfaceMap } from './extension';
 import * as Utils from './utils';
 
 /**
@@ -24,22 +21,26 @@ export class ContentsHelper {
   /**
    * Construct a new instance of ContentsHelper
    *
-   * @param baseURL Server base URL
-   * @param page Playwright page model object
    * @param request Playwright API request context
+   * @param page Playwright page model object
    */
   constructor(
-    readonly baseURL: string,
-    readonly page?: Page,
-    request?: APIRequestContext
+    request?: APIRequestContext,
+    readonly page?: Page
   ) {
     if (request) {
       this.request = request;
     } else if (page) {
       this.request = page.context().request;
+    } else {
+      throw new TypeError(
+        'You must provide `request` or `page` to the contents helper.'
+      );
     }
   }
 
+  readonly request: APIRequestContext;
+
   /**
    * Return the model for a path.
    *
@@ -65,10 +66,7 @@ export class ContentsHelper {
       console.error(`Fail to get content metadata for ${path}`, error);
     }
 
-    const succeeded =
-      (typeof response?.status === 'function'
-        ? response.status()
-        : response?.status) === 200;
+    const succeeded = response?.status() === 200;
 
     if (succeeded) {
       return response!.json();
@@ -184,7 +182,7 @@ export class ContentsHelper {
     try {
       response = await this._fetch(destinationPath, {
         method: 'PUT',
-        body: data
+        data
       });
     } catch (error) {
       console.error(
@@ -193,10 +191,7 @@ export class ContentsHelper {
       );
     }
 
-    const succeeded =
-      (typeof response?.status === 'function'
-        ? response.status()
-        : response?.status) === 201;
+    const succeeded = response?.status() === 201;
 
     if (succeeded) {
       return await this.fileExists(destinationPath);
@@ -244,10 +239,7 @@ export class ContentsHelper {
       console.error(`Failed to delete file ${filePath}`, error);
     }
 
-    const succeeded =
-      (typeof response?.status === 'function'
-        ? response.status()
-        : response?.status) === 204;
+    const succeeded = response?.status() === 204;
 
     if (succeeded) {
       return !(await this.fileExists(fileName));
@@ -304,14 +296,15 @@ export class ContentsHelper {
       // => Use galata in-page if page is available
       return await this.page.evaluate(
         async ({ pluginId, oldName, newName }) => {
-          const docManager = (await window.galataip.getPlugin(
+          const docManager = (await window.galata.getPlugin(
             pluginId
           )) as IDocumentManager;
           const result = await docManager.rename(oldName, newName);
           return result !== null;
         },
         {
-          pluginId: PLUGIN_ID_DOC_MANAGER as keyof IPluginNameToInterfaceMap,
+          pluginId:
+            '@jupyterlab/docmanager-extension:manager' as keyof IPluginNameToInterfaceMap,
           oldName: oldName,
           newName: newName
         }
@@ -323,16 +316,13 @@ export class ContentsHelper {
     try {
       response = await this._fetch(oldName, {
         method: 'PATCH',
-        body: JSON.stringify({ path: newName })
+        data: JSON.stringify({ path: newName })
       });
     } catch (error) {
       console.error(`Failed to rename file ${oldName} to ${newName}`, error);
     }
 
-    const succeeded =
-      (typeof response?.status === 'function'
-        ? response.status()
-        : response?.status) === 200;
+    const succeeded = response?.status() === 200;
 
     if (succeeded) {
       return await this.fileExists(newName);
@@ -373,7 +363,7 @@ export class ContentsHelper {
   }
 
   protected async _createDirectory(dirPath: string): Promise<boolean> {
-    const body = JSON.stringify({
+    const data = JSON.stringify({
       format: 'json',
       type: 'directory'
     });
@@ -383,44 +373,103 @@ export class ContentsHelper {
     try {
       response = await this._fetch(dirPath, {
         method: 'PUT',
-        body
+        data
       });
     } catch (error) {
       console.error(`Failed to create directory ${dirPath}`, error);
     }
 
-    return (
-      (typeof response?.status === 'function'
-        ? response.status()
-        : response?.status) === 201
-    );
+    return response?.status() === 201;
   }
 
   private async _fetch(
     path: string,
-    request: RequestInit = { method: 'GET' }
-  ): Promise<APIResponse | Response | null> {
+    options: {
+      /**
+       * Allows to set post data of the request. If the data parameter is an object, it will be serialized to json string and
+       * `content-type` header will be set to `application/json` if not explicitly set. Otherwise the `content-type` header will
+       * be set to `application/octet-stream` if not explicitly set.
+       */
+      data?: string | Buffer;
+
+      /**
+       * Whether to throw on response codes other than 2xx and 3xx. By default response object is returned for all status codes.
+       */
+      failOnStatusCode?: boolean;
+
+      /**
+       * Provides an object that will be serialized as html form using `application/x-www-form-urlencoded` encoding and sent as
+       * this request body. If this parameter is specified `content-type` header will be set to
+       * `application/x-www-form-urlencoded` unless explicitly provided.
+       */
+      form?: { [key: string]: string | number | boolean };
+
+      /**
+       * Allows to set HTTP headers.
+       */
+      headers?: { [key: string]: string };
+
+      /**
+       * Whether to ignore HTTPS errors when sending network requests. Defaults to `false`.
+       */
+      ignoreHTTPSErrors?: boolean;
+
+      /**
+       * If set changes the fetch method (e.g. [PUT](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/PUT) or
+       * [POST](https://developer.mozilla.org/en-US/docs/Web/HTTP/Methods/POST)). If not specified, GET method is used.
+       */
+      method?: string;
+
+      /**
+       * Provides an object that will be serialized as html form using `multipart/form-data` encoding and sent as this request
+       * body. If this parameter is specified `content-type` header will be set to `multipart/form-data` unless explicitly
+       * provided. File values can be passed either as [`fs.ReadStream`](https://nodejs.org/api/fs.html#fs_class_fs_readstream)
+       * or as file-like object containing file name, mime-type and its content.
+       */
+      multipart?: {
+        [key: string]:
+          | string
+          | number
+          | boolean
+          | ReadStream
+          | {
+              /**
+               * File name
+               */
+              name: string;
+
+              /**
+               * File type
+               */
+              mimeType: string;
+
+              /**
+               * File content
+               */
+              buffer: Buffer;
+            };
+      };
+
+      /**
+       * Query parameters to be sent with the URL.
+       */
+      params?: { [key: string]: string | number | boolean };
+
+      /**
+       * Request timeout in milliseconds. Defaults to `30000` (30 seconds). Pass `0` to disable timeout.
+       */
+      timeout?: number;
+    } = { method: 'GET' }
+  ): Promise<APIResponse> {
     const baseUrl = this.page ? await Utils.getBaseUrl(this.page) : '/';
     const token = this.page ? await Utils.getToken(this.page) : '';
 
     let url = URLExt.join(baseUrl, 'api/contents', path);
 
     if (token) {
-      request.headers = { Authorization: `Token ${token}` };
+      options.headers = { Authorization: `Token ${token}` };
     }
 
-    let response: APIResponse | Response | null = null;
-
-    if (this.request) {
-      response = await this.request.fetch(url, {
-        ...(request as any),
-        data: request.body
-      });
-    } else {
-      response = await fetch(URLExt.join(this.baseURL, url), request);
-    }
-    return response;
+    return this.request.fetch(url, options);
   }
-
-  readonly request: APIRequestContext | null = null;
 }
diff --git a/galata/src/extension.ts b/galata/src/extension.ts
new file mode 100644
index 000000000000..f65e72c7147b
--- /dev/null
+++ b/galata/src/extension.ts
@@ -0,0 +1,283 @@
+// Copyright (c) Jupyter Development Team.
+// Copyright (c) Bloomberg Finance LP.
+// Distributed under the terms of the Modified BSD License.
+
+// This export the types (and only the types) from extension/token.ts
+// Required for typedoc to be happy otherwise we could have used `from '@jupyterlab/extension/lib/token';`
+
+import type { JupyterFrontEnd } from '@jupyterlab/application';
+import type { IRouter } from '@jupyterlab/application';
+import type {
+  Dialog,
+  Notification,
+  NotificationManager,
+  WidgetTracker
+} from '@jupyterlab/apputils';
+import type { IDebugger } from '@jupyterlab/debugger';
+import type { IDocumentManager } from '@jupyterlab/docmanager';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
+
+declare global {
+  // eslint-disable-next-line @typescript-eslint/naming-convention
+  interface Window {
+    /**
+     * Access Jupyter Application object
+     */
+    jupyterapp: JupyterFrontEnd;
+    /**
+     * Access to Galata In-Page helpers
+     *
+     * Those helpers are injected through a JupyterLab extension
+     */
+    galata: IGalataInpage;
+    /**
+     * Access to Galata In-Page helpers
+     *
+     * @deprecated since v4
+     * Those helpers are injected through a JupyterLab extension
+     */
+    galataip: IGalataInpage;
+  }
+}
+
+/**
+ * Static objects exposed.
+ */
+export interface IGalataHelpers {
+  /**
+   * JupyterLab dialogs tracker.
+   */
+  readonly dialogs: WidgetTracker<Dialog<any>>;
+  /**
+   * JupyterLab notifications manager.
+   */
+  readonly notifications: NotificationManager;
+}
+
+/**
+ * Cell execution callbacks interface
+ */
+export interface INotebookRunCallback {
+  /**
+   * Callback before scrolling to the cell
+   */
+  onBeforeScroll?: () => Promise<void>;
+  /**
+   * Callback after scrolling to the cell
+   */
+  onAfterScroll?: () => Promise<void>;
+  /**
+   * Callback after cell execution
+   */
+  onAfterCellRun?: (cellIndex: number) => Promise<void>;
+}
+
+/**
+ * waitForSelector options
+ */
+export interface IWaitForSelectorOptions {
+  /**
+   * Test for the element to be hidden.
+   */
+  hidden?: boolean;
+}
+
+export interface IPluginNameToInterfaceMap {
+  '@jupyterlab/galata-extension:helpers': IGalataHelpers;
+  '@jupyterlab/application-extension:router': IRouter;
+  '@jupyterlab/docmanager-extension:manager': IDocumentManager;
+  '@jupyterlab/apputils-extension:settings': ISettingRegistry;
+  '@jupyterlab/debugger-extension:service': IDebugger;
+}
+
+/**
+ * Galata In-Page interface
+ */
+export interface IGalataInpage {
+  /**
+   * Delete all cells of the active notebook
+   */
+  deleteNotebookCells(): Promise<void>;
+
+  /**
+   * Get the index of a toolbar item
+   *
+   * @param itemName Item name
+   * @returns Index
+   */
+  getNotebookToolbarItemIndex(itemName: string): number;
+
+  /**
+   * Get an application plugin
+   *
+   * @param pluginId Plugin ID
+   * @returns Application plugin
+   */
+  getPlugin<K extends keyof IPluginNameToInterfaceMap>(
+    pluginId: K
+  ): Promise<IPluginNameToInterfaceMap[K] | undefined>;
+
+  /**
+   * Get the Jupyter notifications.
+   *
+   * @returns Jupyter Notifications
+   */
+  getNotifications(): Promise<Notification.INotification[]>;
+
+  /**
+   * Test if one or all cells have an execution number.
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell was executed or not
+   *
+   * ### Notes
+   * It checks that no cells have a `null` execution count.
+   */
+  haveBeenExecuted(cellIndex?: number): boolean;
+
+  /**
+   * Test if a cell is selected in the active notebook
+   *
+   * @param cellIndex Cell index
+   * @returns Whether the cell is selected or not
+   */
+  isNotebookCellSelected(cellIndex: number): boolean;
+
+  /**
+   * Test if a element is visible or not
+   *
+   * @param el Element
+   * @returns Test result
+   */
+  isElementVisible(el: HTMLElement): boolean;
+
+  /**
+   * Disconnect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+  /**
+   * Disconnect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  off(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Connect a listener to new Jupyter dialog events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+
+  /**
+   * Connect a listener to new or updated Jupyter notification events.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  on(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Connect a listener to the next new Jupyter dialog event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(event: 'dialog', listener: (dialog: Dialog<any> | null) => void): void;
+
+  /**
+   * Connect a listener to the next new or updated Jupyter notification event.
+   *
+   * @param event Event type
+   * @param listener Event listener
+   */
+  once(
+    event: 'notification',
+    listener: (notification: Notification.INotification) => void
+  ): void;
+
+  /**
+   * Save the active notebook
+   */
+  saveActiveNotebook(): Promise<void>;
+
+  /**
+   * Set the application theme
+   *
+   * @param themeName Theme name
+   */
+  setTheme(themeName: string): Promise<void>;
+
+  /**
+   * Reset execution count of one or all cells.
+   *
+   * @param cellIndex Cell index
+   */
+  resetExecutionCount(cellIndex?: number): void;
+
+  /**
+   * Run the active notebook cell by cell
+   * and execute the callback after each cell execution
+   *
+   * @param callback Callback
+   */
+  runActiveNotebookCellByCell(callback?: INotebookRunCallback): Promise<void>;
+
+  /**
+   * Wait for the route to be on path and close all documents
+   *
+   * @param path Path to monitor
+   */
+  waitForLaunch(path?: string): Promise<void>;
+
+  /**
+   * Wait for an element to be found from a CSS selector
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  waitForSelector(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null>;
+
+  /**
+   * Waits for the given `timeout` in milliseconds.
+   *
+   * @param timeout A timeout to wait for
+   */
+  waitForTimeout(duration: number): Promise<void>;
+
+  /**
+   * Wait for an element to be found from a XPath
+   *
+   * @param selector CSS selector
+   * @param node Element
+   * @param options Options
+   * @returns Selected element
+   */
+  waitForXPath(
+    selector: string,
+    node?: Element,
+    options?: IWaitForSelectorOptions
+  ): Promise<Node | null>;
+
+  /**
+   * Application object
+   */
+  readonly app: JupyterFrontEnd;
+}
diff --git a/galata/src/fixtures.ts b/galata/src/fixtures.ts
index 1b8eafbcda9e..6a153c346ebc 100644
--- a/galata/src/fixtures.ts
+++ b/galata/src/fixtures.ts
@@ -2,7 +2,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import type { Session, TerminalAPI } from '@jupyterlab/services';
+import type { Session, TerminalAPI, User } from '@jupyterlab/services';
 import {
   test as base,
   Page,
@@ -92,6 +92,17 @@ export type GalataOptions = {
    * they are still initialized with the hard drive values.
    */
   mockSettings: boolean | Record<string, unknown>;
+  /**
+   * Mock JupyterLab user in-memory or not.
+   *
+   * Possible values are:
+   * - true (default): JupyterLab user will be mocked on a per test basis
+   * - false: JupyterLab user won't be mocked (It will be a random user so snapshots won't match)
+   * - Record<string, unknown>: Initial JupyterLab user - Mapping (user attribute, value).
+   *
+   * By default the user is stored in-memory.
+   */
+  mockUser: boolean | Partial<User.IUser>;
   /**
    * Galata can keep the uploaded and created files in ``tmpPath`` on
    * the server root for debugging purpose. By default the files are
@@ -160,7 +171,7 @@ export const test: TestType<
    *
    * Default: /lab
    */
-  appPath: '/lab',
+  appPath: ['/lab', { option: true }],
   /**
    * Whether to go to JupyterLab page within the fixture or not.
    *
@@ -168,7 +179,7 @@ export const test: TestType<
    *
    * Note: Setting it to false allows to register new route mock-ups for example.
    */
-  autoGoto: true,
+  autoGoto: [true, { option: true }],
   /**
    * Mock JupyterLab config in-memory or not.
    *
@@ -190,7 +201,7 @@ export const test: TestType<
    *
    * By default the state is stored in-memory
    */
-  mockState: true,
+  mockState: [true, { option: true }],
   /**
    * Mock JupyterLab settings in-memory or not.
    *
@@ -204,7 +215,18 @@ export const test: TestType<
    * By default the settings are stored in-memory. However the
    * they are still initialized with the hard drive values.
    */
-  mockSettings: galata.DEFAULT_SETTINGS,
+  mockSettings: [galata.DEFAULT_SETTINGS, { option: true }],
+  /**
+   * Mock JupyterLab user in-memory or not.
+   *
+   * Possible values are:
+   * - true (default): JupyterLab user will be mocked on a per test basis
+   * - false: JupyterLab user won't be mocked (It will be a random user so snapshots won't match)
+   * - Record<string, unknown>: Initial JupyterLab user - Mapping (user attribute, value).
+   *
+   * By default the user is stored in-memory.
+   */
+  mockUser: [true, { option: true }],
   /**
    * Galata can keep the uploaded and created files in ``tmpPath`` on
    * the server root for debugging purpose. By default the files are
@@ -214,7 +236,7 @@ export const test: TestType<
    * - 'on' - ``tmpPath`` is never deleted
    * - 'only-on-failure' - ``tmpPath`` is deleted except if a test failed or timed out.
    */
-  serverFiles: 'off',
+  serverFiles: ['off', { option: true }],
   /**
    * Sessions created during the test.
    *
@@ -224,17 +246,13 @@ export const test: TestType<
    *
    * By default the sessions created during a test will be tracked and disposed at the end.
    */
-  sessions: async ({ baseURL }, use) => {
+  sessions: async ({ request }, use) => {
     const sessions = new Map<string, Session.IModel>();
 
     await use(sessions);
 
     if (sessions.size > 0) {
-      await galata.Mock.clearRunners(
-        baseURL!,
-        [...sessions.keys()],
-        'sessions'
-      );
+      await galata.Mock.clearRunners(request, [...sessions.keys()], 'sessions');
     }
   },
   /**
@@ -242,18 +260,18 @@ export const test: TestType<
    *
    * Possible values are:
    * - null: The Terminals API won't be mocked
-   * - Map<string, TerminalsAPI.IModel>: The Terminals created during a test.
+   * - Map<string, TerminalAPI.IModel>: The Terminals created during a test.
    *
    * By default the Terminals created during a test will be tracked and disposed at the end.
    */
-  terminals: async ({ baseURL }, use) => {
+  terminals: async ({ request }, use) => {
     const terminals = new Map<string, TerminalAPI.IModel>();
 
     await use(terminals);
 
     if (terminals.size > 0) {
       await galata.Mock.clearRunners(
-        baseURL!,
+        request,
         [...terminals.keys()],
         'terminals'
       );
@@ -265,13 +283,13 @@ export const test: TestType<
    * Note: if you override this string, you will need to take care of creating the
    * folder and cleaning it.
    */
-  tmpPath: async ({ baseURL, serverFiles, request }, use, testInfo) => {
+  tmpPath: async ({ request, serverFiles }, use, testInfo) => {
     // Remove appended retry part for reproducibility
     const testFolder = path
       .basename(testInfo.outputDir)
       .replace(/-retry\d+$/i, '');
 
-    const contents = new ContentsHelper(baseURL!, undefined, request);
+    const contents = new ContentsHelper(request);
 
     if (await contents.directoryExists(testFolder)) {
       await contents.deleteDirectory(testFolder);
@@ -309,7 +327,6 @@ export const test: TestType<
       await helpers.waitForCondition(() => {
         return helpers.activity.isTabActive('Launcher');
       });
-
       // Oddly current tab is not always set to active
       if (!(await helpers.isInSimpleMode())) {
         await helpers.activity.activateTab('Launcher');
@@ -341,6 +358,7 @@ export const test: TestType<
       mockConfig,
       mockSettings,
       mockState,
+      mockUser,
       page,
       sessions,
       terminals,
@@ -357,6 +375,7 @@ export const test: TestType<
         mockConfig,
         mockSettings,
         mockState,
+        mockUser,
         page,
         sessions,
         terminals,
diff --git a/galata/src/galata.ts b/galata/src/galata.ts
index b47d09afc81f..74f6627da178 100644
--- a/galata/src/galata.ts
+++ b/galata/src/galata.ts
@@ -3,12 +3,17 @@
 // Distributed under the terms of the Modified BSD License.
 
 import type * as nbformat from '@jupyterlab/nbformat';
-import type { Session, TerminalAPI, Workspace } from '@jupyterlab/services';
+import type {
+  Session,
+  TerminalAPI,
+  User,
+  Workspace
+} from '@jupyterlab/services';
 import type { ISettingRegistry } from '@jupyterlab/settingregistry';
 import type { JSONObject } from '@lumino/coreutils';
+import { UUID } from '@lumino/coreutils';
 import type { APIRequestContext, Browser, Page } from '@playwright/test';
 import * as json5 from 'json5';
-import fetch from 'node-fetch';
 import { ContentsHelper } from './contents';
 import { PerformanceHelper } from './helpers';
 import {
@@ -30,13 +35,20 @@ export namespace galata {
       checkForUpdates: false,
       fetchNews: 'false'
     },
-    '@jupyterlab/fileeditor-extension:plugin': {
-      editorConfig: { cursorBlinkRate: 0 }
-    },
-    '@jupyterlab/notebook-extension:tracker': {
-      codeCellConfig: { cursorBlinkRate: 0 },
-      markdownCellConfig: { cursorBlinkRate: 0 },
-      rawCellConfig: { cursorBlinkRate: 0 }
+    '@jupyterlab/fileeditor-extension:plugin': {},
+    '@jupyterlab/notebook-extension:tracker': {},
+    '@jupyterlab/codemirror-extension:plugin': {
+      defaultConfig: {
+        cursorBlinkRate: 0
+      }
+    }
+  };
+
+  export const DEFAULT_DOCUMENTATION_STATE: Record<string, any> = {
+    data: {
+      'layout-restorer:data': {
+        relativeSizes: [0, 1, 0]
+      }
     }
   };
 
@@ -51,7 +63,6 @@ export namespace galata {
   export type DefaultSidebarTabId =
     | 'filebrowser'
     | 'jp-running-sessions'
-    | 'tab-manager'
     | 'jp-property-inspector'
     | 'table-of-contents'
     | 'extensionmanager.main-view'
@@ -84,6 +95,78 @@ export namespace galata {
    */
   export type NotebookToolbarItemId = DefaultNotebookToolbarItemId | string;
 
+  /**
+   * Options to create a new page
+   */
+  export interface INewPageOption {
+    /**
+     * Application base URL
+     */
+    baseURL: string;
+    /**
+     * Playwright browser model
+     */
+    browser: Browser;
+    /**
+     * Callback that resolved when the application page is ready
+     */
+    waitForApplication: (page: Page, helpers: IJupyterLabPage) => Promise<void>;
+    /**
+     * Application URL path fragment
+     *
+     * Default: /lab
+     */
+    appPath?: string;
+    /**
+     * Whether to go to JupyterLab page within the fixture or not.
+     *
+     * Default: true
+     */
+    autoGoto?: boolean;
+    /**
+     * Mock Jupyter Server configuration in-memory or not.
+     *
+     * Default true
+     */
+    mockConfig?: boolean | Record<string, unknown>;
+    /**
+     * Mock JupyterLab state in-memory or not.
+     *
+     * Default galata.DEFAULT_SETTINGS
+     */
+    mockSettings?: boolean | Record<string, unknown>;
+    /**
+     * Mock JupyterLab settings in-memory or not.
+     *
+     * Default true
+     */
+    mockState?: boolean | Record<string, unknown>;
+    /**
+     * Mock JupyterLab user in-memory or not.
+     *
+     * Default true
+     */
+    mockUser?: boolean | Partial<User.IUser>;
+    /**
+     * Whether to store sessions in memory or not.
+     *
+     * Default true
+     */
+    mockSessions?: boolean;
+    /**
+     * Whether to store terminals in memory or not.
+     *
+     * Default true
+     */
+    mockTerminals?: boolean;
+    /**
+     * Create and delete a temporary path during the page existence
+     *
+     * Default ''
+     */
+    tmpPath?: string;
+  }
+
   /**
    * Add the Galata helpers to the page model
    *
@@ -125,6 +208,7 @@ export namespace galata {
     mockConfig: boolean | Record<string, unknown>,
     mockSettings: boolean | Record<string, unknown>,
     mockState: boolean | Record<string, unknown>,
+    mockUser: boolean | Partial<User.IUser>,
     page: Page,
     sessions: Map<string, Session.IModel> | null,
     terminals: Map<string, TerminalAPI.IModel> | null,
@@ -168,6 +252,24 @@ export namespace galata {
       await Mock.mockState(page, workspace);
     }
 
+    let user: User.IUser = {
+      identity: {
+        username: UUID.uuid4(),
+        name: 'jovyan',
+        display_name: 'jovyan',
+        initials: 'JP',
+        color: 'var(--jp-collaborator-color1)'
+      },
+      permissions: {}
+    };
+    if (mockUser) {
+      if (typeof mockUser !== 'boolean') {
+        user = { ...mockUser } as any;
+      }
+      // The user will be stored in-memory
+      await Mock.mockUser(page, user);
+    }
+
     // Add sessions and terminals trackers
     if (sessions) {
       await Mock.mockRunners(page, sessions, 'sessions');
@@ -187,57 +289,78 @@ export namespace galata {
   /**
    * Create a contents REST API helpers object
    *
-   * @param baseURL Application base URL
-   * @param page Playwright page model
    * @param request Playwright API request context
+   * @param page Playwright page model
    * @returns Contents REST API helpers
    */
   export function newContentsHelper(
-    baseURL: string,
-    page?: Page,
-    request?: APIRequestContext
+    request?: APIRequestContext,
+    page?: Page
   ): ContentsHelper {
-    return new ContentsHelper(baseURL, page, request);
+    return new ContentsHelper(request, page);
   }
 
   /**
-   * Create a page with Galata helpers for the given browser
+   * Create a page with Galata helpers for the given browser in a new context.
    *
-   * @param browser Playwright browser model
-   * @param baseURL Application base URL
-   * @param waitForApplication Callback that resolved when the application page is ready
-   * @param appPath Application URL path fragment
    * @returns Playwright page model with Galata helpers
    */
-  export async function newPage(
-    appPath: string,
-    autoGoto: boolean,
-    baseURL: string,
-    browser: Browser,
-    mockConfig: boolean | Record<string, unknown>,
-    mockSettings: boolean | Record<string, unknown>,
-    mockState: boolean | Record<string, unknown>,
-    sessions: Map<string, Session.IModel> | null,
-    terminals: Map<string, TerminalAPI.IModel> | null,
-    tmpPath: string,
-    waitForApplication: (page: Page, helpers: IJupyterLabPage) => Promise<void>
-  ): Promise<IJupyterLabPageFixture> {
-    const context = await browser.newContext();
-    const page = await context.newPage();
-
-    return initTestPage(
+  export async function newPage(options: INewPageOption): Promise<{
+    page: IJupyterLabPageFixture;
+    sessions: Map<string, Session.IModel> | null;
+    terminals: Map<string, TerminalAPI.IModel> | null;
+  }> {
+    const {
       appPath,
       autoGoto,
       baseURL,
+      browser,
+      waitForApplication,
       mockConfig,
+      mockSessions,
       mockSettings,
       mockState,
-      page,
+      mockTerminals,
+      mockUser,
+      tmpPath
+    } = {
+      appPath: '/lab',
+      autoGoto: true,
+      mockConfig: true,
+      mockSessions: true,
+      mockSettings: galata.DEFAULT_SETTINGS,
+      mockState: true,
+      mockTerminals: true,
+      mockUser: true,
+      tmpPath: '',
+      ...options
+    };
+    const context = await browser.newContext();
+    const page = await context.newPage();
+
+    const sessions = mockSessions ? new Map<string, Session.IModel>() : null;
+    const terminals = mockTerminals
+      ? new Map<string, TerminalAPI.IModel>()
+      : null;
+
+    return {
+      page: await initTestPage(
+        appPath,
+        autoGoto,
+        baseURL,
+        mockConfig,
+        mockSettings,
+        mockState,
+        mockUser,
+        page,
+        sessions,
+        terminals,
+        tmpPath,
+        waitForApplication
+      ),
       sessions,
-      terminals,
-      tmpPath,
-      waitForApplication
-    );
+      terminals
+    };
   }
 
   /**
@@ -281,7 +404,7 @@ export namespace galata {
      *
      * The session id can be found in the named group `id`.
      *
-     * The id will be suffixed by '/'.
+     * The id will be prefixed by '/'.
      */
     export const sessions = /.*\/api\/sessions(?<id>\/[@:-\w]+)?/;
 
@@ -290,7 +413,7 @@ export namespace galata {
      *
      * The schema name can be found in the named group `id`.
      *
-     * The id will be suffixed by '/'.
+     * The id will be prefixed by '/'.
      */
     export const settings = /.*\/api\/settings(?<id>(\/[@:-\w]+)*)/;
 
@@ -299,7 +422,7 @@ export namespace galata {
      *
      * The terminal id can be found in the named group `id`.
      *
-     * The id will be suffixed by '/'.
+     * The id will be prefixed by '/'.
      */
     export const terminals = /.*\/api\/terminals(?<id>\/[@:-\w]+)?/;
 
@@ -308,7 +431,7 @@ export namespace galata {
      *
      * The locale can be found in the named group `id`.
      *
-     * The id will be suffixed by '/'.
+     * The id will be prefixed by '/'.
      */
     export const translations = /.*\/api\/translations(?<id>\/[@:-\w]+)?/;
 
@@ -317,9 +440,14 @@ export namespace galata {
      *
      * The space name can be found in the named group `id`.
      *
-     * The id will be suffixed by '/'.
+     * The id will be prefixed by '/'.
      */
     export const workspaces = /.*\/api\/workspaces(?<id>(\/[-\w]+)+)/;
+
+    /**
+     * User API
+     */
+    export const user = /.*\/api\/me.*/;
   }
 
   /**
@@ -433,6 +561,69 @@ export namespace galata {
    * Mock methods
    */
   export namespace Mock {
+    /**
+     * Set last modified attributes one day ago one listing
+     * directory content.
+     *
+     * @param page Page model object
+     *
+     * #### Notes
+     * The goal is to freeze the file browser display
+     */
+    export async function freezeContentLastModified(page: Page): Promise<void> {
+      // Listen for closing connection (may happen when request are still being processed)
+      let isClosed = false;
+      const ctxt = page.context();
+      ctxt.once('close', () => {
+        isClosed = true;
+      });
+      ctxt.browser()?.once('disconnected', () => {
+        isClosed = true;
+      });
+
+      return page.route(Routes.contents, async (route, request) => {
+        switch (request.method()) {
+          case 'GET': {
+            // Proxy the GET request
+            const response = await ctxt.request.fetch(request);
+            if (!response.ok()) {
+              if (!page.isClosed() && !isClosed) {
+                return route.fulfill({
+                  status: response.status(),
+                  body: await response.text()
+                });
+              }
+              break;
+            }
+            const data = await response.json();
+            // Modify the last_modified values to be set one day before now.
+            if (
+              data['type'] === 'directory' &&
+              Array.isArray(data['content'])
+            ) {
+              const now = Date.now();
+              const aDayAgo = new Date(now - 24 * 3600 * 1000).toISOString();
+              for (const entry of data['content'] as any[]) {
+                // Mutate the list in-place
+                entry['last_modified'] = aDayAgo;
+              }
+            }
+
+            if (!page.isClosed() && !isClosed) {
+              return route.fulfill({
+                status: 200,
+                body: JSON.stringify(data),
+                contentType: 'application/json'
+              });
+            }
+            break;
+          }
+          default:
+            return route.continue();
+        }
+      });
+    }
+
     /**
      * Clear all wanted sessions or terminals.
      *
@@ -443,25 +634,18 @@ export namespace galata {
      * @returns Whether the runners were closed or not
      */
     export async function clearRunners(
-      baseURL: string,
+      request: APIRequestContext,
       runners: string[],
-      type: 'sessions' | 'terminals',
-      request?: APIRequestContext
+      type: 'sessions' | 'terminals'
     ): Promise<boolean> {
       const responses = await Promise.all(
         [...new Set(runners)].map(id =>
-          request
-            ? (request.fetch(`/api/${type}/${id}`, {
-                method: 'DELETE'
-              }) as any)
-            : (fetch(`${baseURL}/api/${type}/${id}`, {
-                method: 'DELETE'
-              }) as any)
+          request.fetch(`/api/${type}/${id}`, {
+            method: 'DELETE'
+          })
         )
       );
-      return responses.every(response =>
-        typeof response.ok === 'function' ? response.ok() : response.ok
-      );
+      return responses.every(response => response.ok());
     }
 
     /**
@@ -522,10 +706,10 @@ export namespace galata {
       // Listen for closing connection (may happen when request are still being processed)
       let isClosed = false;
       const ctxt = page.context();
-      ctxt.on('close', () => {
+      ctxt.once('close', () => {
         isClosed = true;
       });
-      ctxt.browser()?.on('disconnected', () => {
+      ctxt.browser()?.once('disconnected', () => {
         isClosed = true;
       });
       return page.route(routeRegex, async (route, request) => {
@@ -725,10 +909,10 @@ export namespace galata {
       // Listen for closing connection (may happen when request are still being processed)
       let isClosed = false;
       const ctxt = page.context();
-      ctxt.on('close', () => {
+      ctxt.once('close', () => {
         isClosed = true;
       });
-      ctxt.browser()?.on('disconnected', () => {
+      ctxt.browser()?.once('disconnected', () => {
         isClosed = true;
       });
 
@@ -827,5 +1011,25 @@ export namespace galata {
         }
       });
     }
+
+    /**
+     * Mock user route.
+     *
+     * @param page Page model object
+     * @param user In-memory user
+     */
+    export function mockUser(page: Page, user: User.IUser): Promise<void> {
+      return page.route(Routes.user, (route, request) => {
+        switch (request.method()) {
+          case 'GET':
+            return route.fulfill({
+              status: 200,
+              body: JSON.stringify(user)
+            });
+          default:
+            return route.continue();
+        }
+      });
+    }
   }
 }
diff --git a/galata/src/helpers/activity.ts b/galata/src/helpers/activity.ts
index d8739d00e44e..5a5760ff8f25 100644
--- a/galata/src/helpers/activity.ts
+++ b/galata/src/helpers/activity.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ElementHandle, Page } from '@playwright/test';
+import { ElementHandle, Locator, Page } from '@playwright/test';
 import * as Utils from '../utils';
 
 /**
@@ -12,21 +12,28 @@ export class ActivityHelper {
 
   /**
    * JupyterLab launcher selector
+   *
+   * @deprecated You should use locator selector {@link launcher}
    */
   get launcherSelector(): string {
     return Utils.xpBuildActivityTabSelector('Launcher');
   }
 
+  /**
+   * JupyterLab launcher tab
+   */
+  get launcher(): Locator {
+    return this.page.getByRole('main').getByRole('tab', { name: 'Launcher' });
+  }
+
   /**
    * Close all widgets in the main area
    */
   async closeAll(): Promise<void> {
-    await this.page.evaluate(async (launcherSelector: string) => {
-      const app = window.jupyterlab ?? window.jupyterapp;
-
-      await app.commands.execute('application:close-all');
-      await window.galataip.waitForXPath(launcherSelector);
-    }, this.launcherSelector);
+    await this.page.evaluate(async () => {
+      await window.jupyterapp.commands.execute('application:close-all');
+    });
+    await this.launcher.waitFor();
   }
 
   /**
@@ -36,14 +43,22 @@ export class ActivityHelper {
    * @returns Active status
    */
   async isTabActive(name: string): Promise<boolean> {
-    const tab = await this.getTab(name);
-    return (
-      (tab &&
-        (await tab.evaluate((tab: Element) =>
-          tab.classList.contains('lm-mod-current')
-        ))) ??
-      false
-    );
+    if (await Utils.isInSimpleMode(this.page)) {
+      const activeTab = await this.page
+        .locator('#jp-title-panel-title')
+        .getByRole('textbox')
+        .inputValue();
+      return activeTab === name;
+    } else {
+      const tab = await this.getTab(name);
+      return (
+        (tab &&
+          (await tab.evaluate((tab: Element) =>
+            tab.classList.contains('jp-mod-current')
+          ))) ??
+        false
+      );
+    }
   }
 
   /**
@@ -52,12 +67,25 @@ export class ActivityHelper {
    * @param name Activity name
    * @returns Handle on the tab or null if the tab is not found
    */
-  getTab(name?: string): Promise<ElementHandle<Element> | null> {
-    const page = this.page;
-    const tabSelector = name
-      ? Utils.xpBuildActivityTabSelector(name)
-      : Utils.xpBuildActiveActivityTabSelector();
-    return page.$(`xpath=${tabSelector}`);
+  async getTab(name?: string): Promise<ElementHandle<Element> | null> {
+    let handle: ElementHandle<Element> | null = null;
+    try {
+      handle = await this.getTabLocator(name).elementHandle({ timeout: 500 });
+    } catch {
+      handle = null;
+    }
+    return handle;
+  }
+
+  /**
+   * Get a tab locator
+   * @param name Activity name
+   * @returns Tab locator
+   */
+  getTabLocator(name?: string): Locator {
+    return name
+      ? this.page.getByRole('main').getByRole('tab', { name })
+      : this.page.getByRole('main').locator('.jp-mod-current[role="tab"]');
   }
 
   /**
@@ -68,15 +96,51 @@ export class ActivityHelper {
    */
   async getPanel(name?: string): Promise<ElementHandle<Element> | null> {
     const page = this.page;
-    const tab = await this.getTab(name);
-    if (tab) {
-      const id = await tab.evaluate((tab: Element) =>
+    let locator: Locator;
+    if (name) {
+      locator = page.getByRole('main').getByRole('tabpanel', { name });
+    } else {
+      const activeTab = await this.getTab();
+      const id = await activeTab?.evaluate((tab: Element) =>
         tab.getAttribute('data-id')
       );
-      return await page.$(`xpath=${Utils.xpBuildActivityPanelSelector(id!)}`);
+      if (!id) {
+        return null;
+      }
+      locator = page.getByRole('main').locator(`[role="tabpanel"][id="${id}"]`);
+    }
+
+    let handle: ElementHandle<Element> | null = null;
+    try {
+      handle = await locator.elementHandle({ timeout: 500 });
+    } catch {
+      handle = null;
+    }
+
+    return handle;
+  }
+
+  /**
+   * Get a panel locator
+   *
+   * @param name Activity name
+   * @returns Panel locator or null
+   */
+  async getPanelLocator(name?: string): Promise<Locator | null> {
+    let locator: Locator;
+    if (name) {
+      locator = this.page.getByRole('main').getByRole('tabpanel', { name });
+    } else {
+      const id = await this.getTabLocator().getAttribute('data-id');
+      if (!id) {
+        return null;
+      }
+      locator = this.page
+        .getByRole('main')
+        .locator(`[role="tabpanel"][id="${id}"]`);
     }
 
-    return null;
+    return locator;
   }
 
   /**
@@ -86,12 +150,10 @@ export class ActivityHelper {
    */
   async closePanel(name: string): Promise<void> {
     await this.activateTab(name);
-    await this.page.evaluate(async (launcherSelector: string) => {
-      const app = window.jupyterlab ?? window.jupyterapp;
-
-      await app.commands.execute('application:close');
-      await window.galataip.waitForXPath(launcherSelector);
-    }, this.launcherSelector);
+    await this.page.evaluate(async () => {
+      await window.jupyterapp.commands.execute('application:close');
+    });
+    await this.launcher.waitFor();
   }
 
   /**
@@ -106,7 +168,7 @@ export class ActivityHelper {
       await tab.click();
       await this.page.waitForFunction(
         ({ tab }) => {
-          return tab.classList.contains('jp-mod-current');
+          return tab.ariaSelected === 'true';
         },
         { tab }
       );
diff --git a/galata/src/helpers/debuggerpanel.ts b/galata/src/helpers/debuggerpanel.ts
new file mode 100644
index 000000000000..a12e27fca7d9
--- /dev/null
+++ b/galata/src/helpers/debuggerpanel.ts
@@ -0,0 +1,159 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ElementHandle, Page } from '@playwright/test';
+import { SidebarHelper } from './sidebar';
+import { NotebookHelper } from './notebook';
+import { waitForCondition } from '../utils';
+
+const DEBUGGER_ITEM = 'debugger-icon';
+
+/**
+ * Debugger Helper
+ */
+export class DebuggerHelper {
+  constructor(
+    readonly page: Page,
+    readonly sidebar: SidebarHelper,
+    readonly notebook: NotebookHelper
+  ) {}
+
+  /**
+   * Returns true if debugger toolbar item is enabled, false otherwise
+   */
+  async isOn(): Promise<boolean> {
+    if (!(await this.notebook.isAnyActive())) {
+      return false;
+    }
+    const item = await this.notebook.getToolbarItem(DEBUGGER_ITEM);
+    if (item) {
+      const button = await item.$('button');
+      if (button) {
+        return (await button.getAttribute('aria-pressed')) === 'true';
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Enables the debugger toolbar item
+   */
+  async switchOn(): Promise<void> {
+    await waitForCondition(async () => {
+      const item = await this.notebook.getToolbarItem(DEBUGGER_ITEM);
+      if (item) {
+        const button = await item.$('button');
+        if (button) {
+          return (await button.getAttribute('aria-disabled')) !== 'true';
+        }
+      }
+      return false;
+    }, 2000);
+    if (!(await this.isOn())) {
+      await this.notebook.clickToolbarItem(DEBUGGER_ITEM);
+    }
+  }
+
+  /**
+   * Disables the debugger toolbar item
+   */
+  async switchOff(): Promise<void> {
+    if (await this.isOn()) {
+      await this.notebook.clickToolbarItem(DEBUGGER_ITEM);
+    }
+  }
+
+  /**
+   *  Returns true if debugger panel is open, false otherwise
+   */
+  async isOpen(): Promise<boolean> {
+    return await this.sidebar.isTabOpen('jp-debugger-sidebar');
+  }
+
+  /**
+   * Returns handle to the variables panel content
+   */
+  async getVariablesPanel(): Promise<ElementHandle<Element> | null> {
+    return this._getPanel('.jp-DebuggerVariables');
+  }
+
+  /**
+   * Waits for variables to be populated in the variables panel
+   */
+  async waitForVariables(): Promise<void> {
+    await this.page.waitForSelector('.jp-DebuggerVariables-body ul');
+  }
+
+  /**
+   * render variable
+   */
+  async renderVariable(name: string): Promise<void> {
+    await this.page
+      .locator(`.jp-DebuggerVariables :text("${name}")`)
+      .click({ button: 'right' });
+    await this.page
+      .locator('.lm-Menu-itemLabel:text("Render Variable")')
+      .click();
+    await this.page.waitForSelector('.jp-VariableRendererPanel-renderer');
+  }
+
+  /**
+   * Returns handle to callstack panel content
+   */
+  async getCallStackPanel(): Promise<ElementHandle<Element> | null> {
+    return this._getPanel('.jp-DebuggerCallstack');
+  }
+
+  /**
+   * Waits for the callstack body to populate in the callstack panel
+   */
+  async waitForCallStack(): Promise<void> {
+    await this.page.waitForSelector(
+      '.jp-DebuggerCallstack-body >> .jp-DebuggerCallstackFrame'
+    );
+  }
+
+  /**
+   * Returns handle to breakpoints panel content
+   */
+  async getBreakPointsPanel(): Promise<ElementHandle<Element> | null> {
+    return this._getPanel('.jp-DebuggerBreakpoints');
+  }
+
+  /**
+   * Waits for the breakpoints to appear in the breakpoints panel
+   */
+  async waitForBreakPoints(): Promise<void> {
+    await this.page.waitForSelector(
+      '.jp-DebuggerBreakpoints >> .jp-DebuggerBreakpoint'
+    );
+  }
+
+  /**
+   * Returns handle to sources panel content
+   */
+  async getSourcePanel(): Promise<ElementHandle<Element> | null> {
+    return this._getPanel('.jp-DebuggerSources');
+  }
+
+  /**
+   * Waits for sources to be populated in the sources panel
+   */
+  async waitForSources(): Promise<void> {
+    await this.page.waitForSelector('.jp-DebuggerSources-body >> .jp-Editor', {
+      state: 'visible'
+    });
+  }
+
+  private async _getPanel(
+    selector: string
+  ): Promise<ElementHandle<Element> | null> {
+    const panel = await this.sidebar.getContentPanel('right');
+    if (panel) {
+      return panel.$(selector);
+    }
+    return null;
+  }
+}
diff --git a/galata/src/helpers/filebrowser.ts b/galata/src/helpers/filebrowser.ts
index d877011a580d..16237ac3275f 100644
--- a/galata/src/helpers/filebrowser.ts
+++ b/galata/src/helpers/filebrowser.ts
@@ -10,7 +10,10 @@ import * as Utils from '../utils';
  * File Browser Helpers
  */
 export class FileBrowserHelper {
-  constructor(readonly page: Page, readonly contents: ContentsHelper) {}
+  constructor(
+    readonly page: Page,
+    readonly contents: ContentsHelper
+  ) {}
 
   /**
    * Create the selector for a file in the file browser
@@ -95,10 +98,11 @@ export class FileBrowserHelper {
    * Note: This will double click on the file;
    * an editor needs to be available for the given file type.
    *
-   * @param filePath Notebook path
+   * @param filePath File path
+   * @param factory Document factory to use
    * @returns Action success status
    */
-  async open(filePath: string): Promise<boolean> {
+  async open(filePath: string, factory?: string): Promise<boolean> {
     await this.revealFileInBrowser(filePath);
     const name = path.basename(filePath);
 
@@ -106,10 +110,28 @@ export class FileBrowserHelper {
       `xpath=${this.xpBuildFileSelector(name)}`
     );
     if (fileItem) {
-      await fileItem.click({ clickCount: 2 });
-      await this.page.waitForSelector(Utils.xpBuildActivityTabSelector(name), {
-        state: 'visible'
-      });
+      if (factory) {
+        await fileItem.click({ button: 'right' });
+        await this.page
+          .getByRole('listitem')
+          .filter({ hasText: 'Open With' })
+          .click();
+        await this.page
+          .getByRole('menuitem', { name: factory, exact: true })
+          .click();
+      } else {
+        await fileItem.dblclick();
+      }
+      // Use `last` as if a file is already open, it will simply be activated
+      // if not it will be opened with optionally another factory (but we don't have a way
+      // to know that from the DOM).
+      await this.page
+        .getByRole('main')
+        .getByRole('tab', { name })
+        .last()
+        .waitFor({
+          state: 'visible'
+        });
     } else {
       return false;
     }
@@ -136,6 +158,7 @@ export class FileBrowserHelper {
         '.jp-FileBrowser .jp-FileBrowser-crumbs span'
       );
       return (
+        // The home is the root if no preferred dir is defined.
         spans.length === 2 && spans[0].classList.contains('jp-BreadCrumbs-home')
       );
     });
diff --git a/galata/src/helpers/index.ts b/galata/src/helpers/index.ts
index 67b014bc64ce..93e716f266a4 100644
--- a/galata/src/helpers/index.ts
+++ b/galata/src/helpers/index.ts
@@ -10,4 +10,6 @@ export * from './notebook';
 export * from './performance';
 export * from './sidebar';
 export * from './statusbar';
+export * from './style';
 export * from './theme';
+export * from './debuggerpanel';
diff --git a/galata/src/helpers/kernel.ts b/galata/src/helpers/kernel.ts
index b00f59ac6c3f..b5c1a52f3a2a 100644
--- a/galata/src/helpers/kernel.ts
+++ b/galata/src/helpers/kernel.ts
@@ -20,8 +20,7 @@ export class KernelHelper {
    */
   async isAnyRunning(): Promise<boolean> {
     return await this.page.evaluate(() => {
-      const app = window.jupyterlab ?? window.jupyterapp;
-      return app.serviceManager.sessions.running().next() !== undefined;
+      return !window.jupyterapp.serviceManager.sessions.running().next().done;
     });
   }
 
@@ -30,8 +29,7 @@ export class KernelHelper {
    */
   async shutdownAll(): Promise<void> {
     await this.page.evaluate(async () => {
-      const app = window.jupyterlab ?? window.jupyterapp;
-      await app.serviceManager.sessions.shutdownAll();
+      await window.jupyterapp.serviceManager.sessions.shutdownAll();
     });
 
     await Utils.waitForCondition(async () => {
diff --git a/galata/src/helpers/menu.ts b/galata/src/helpers/menu.ts
index d2796529acea..ae87903e3480 100644
--- a/galata/src/helpers/menu.ts
+++ b/galata/src/helpers/menu.ts
@@ -21,9 +21,12 @@ export class MenuHelper {
     for (let i = 0; i < numOpenMenus; ++i) {
       await page.keyboard.press('Escape');
       await page.waitForTimeout(100);
-      await page.waitForFunction((menuCount: number) => {
-        return document.querySelectorAll('.lm-Menu').length === menuCount;
-      }, numOpenMenus - (i + 1));
+      await page.waitForFunction(
+        (menuCount: number) => {
+          return document.querySelectorAll('.lm-Menu').length === menuCount;
+        },
+        numOpenMenus - (i + 1)
+      );
     }
   }
 
@@ -41,6 +44,21 @@ export class MenuHelper {
     );
   }
 
+  /**
+   * Open a context menu and get its handle.
+   *
+   * @param selector Element over which the menu should be opened
+   * @returns Handle to the menu or null
+   */
+  async openContextMenu(
+    selector: string
+  ): Promise<ElementHandle<Element> | null> {
+    await this.page.click(selector, {
+      button: 'right'
+    });
+    return await this.page.$('.lm-Menu');
+  }
+
   /**
    * Get the handle on a menu item from its path.
    *
diff --git a/galata/src/helpers/notebook.ts b/galata/src/helpers/notebook.ts
index 8a87e9cbf714..b8fe1df63864 100644
--- a/galata/src/helpers/notebook.ts
+++ b/galata/src/helpers/notebook.ts
@@ -1,18 +1,23 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import * as nbformat from '@jupyterlab/nbformat';
-import { NotebookPanel } from '@jupyterlab/notebook';
+import type * as nbformat from '@jupyterlab/nbformat';
+import type { NotebookPanel } from '@jupyterlab/notebook';
 import { ElementHandle, Page } from '@playwright/test';
 import * as path from 'path';
+import { ContentsHelper } from '../contents';
+import type { INotebookRunCallback } from '../extension';
 import { galata } from '../galata';
-import { INotebookRunCallback } from '../inpage/tokens';
 import * as Utils from '../utils';
 import { ActivityHelper } from './activity';
-import { ContentsHelper } from '../contents';
 import { FileBrowserHelper } from './filebrowser';
 import { MenuHelper } from './menu';
 
+/**
+ * Maximal number of retries to get a cell
+ */
+const MAX_RETRIES = 3;
+
 /**
  * Notebook helpers
  */
@@ -116,7 +121,7 @@ export class NotebookHelper {
     const nbPanel = await this.activity.getPanel(name);
 
     if (nbPanel) {
-      return await nbPanel.$('.jp-NotebookPanel-toolbar');
+      return await nbPanel.$('.jp-Toolbar');
     }
 
     return null;
@@ -164,7 +169,7 @@ export class NotebookHelper {
 
     if (toolbar) {
       const itemIndex = await this.page.evaluate(async (itemId: string) => {
-        return window.galataip.getNotebookToolbarItemIndex(itemId);
+        return window.galata.getNotebookToolbarItemIndex(itemId);
       }, itemId);
 
       return this.getToolbarItemByIndex(itemIndex);
@@ -204,12 +209,12 @@ export class NotebookHelper {
   async activate(name: string): Promise<boolean> {
     if (await this.activity.activateTab(name)) {
       await this.page.evaluate(async () => {
-        const galataip = window.galataip;
-        const nbPanel = galataip.app.shell.currentWidget as NotebookPanel;
+        const galata = window.galata;
+        const nbPanel = galata.app.shell.currentWidget as NotebookPanel;
         await nbPanel.sessionContext.ready;
         // Assuming that if the session is ready, the kernel is ready also for now and commenting out this line
         // await nbPanel.session.kernel.ready;
-        galataip.app.shell.activateById(nbPanel.id);
+        galata.app.shell.activateById(nbPanel.id);
       });
 
       return true;
@@ -229,7 +234,7 @@ export class NotebookHelper {
     }
 
     await this.page.evaluate(async () => {
-      await window.galataip.saveActiveNotebook();
+      await window.galata.saveActiveNotebook();
     });
 
     return true;
@@ -246,7 +251,7 @@ export class NotebookHelper {
     }
 
     await this.page.evaluate(async () => {
-      const app = window.galataip.app;
+      const app = window.galata.app;
       const nbPanel = app.shell.currentWidget as NotebookPanel;
       await nbPanel.context.revert();
     });
@@ -264,6 +269,9 @@ export class NotebookHelper {
       return false;
     }
 
+    await this.page.evaluate(() => {
+      window.galata.resetExecutionCount();
+    });
     await this.menu.clickMenuItem('Run>Run All Cells');
     await this.waitForRun();
 
@@ -334,19 +342,56 @@ export class NotebookHelper {
               }
             } as INotebookRunCallback);
 
-      await window.galataip.runActiveNotebookCellByCell(callbacks);
+      await window.galata.runActiveNotebookCellByCell(callbacks);
     }, callbackName);
 
     return true;
   }
 
+  /**
+   * Trust the active notebook
+   *
+   * @returns Whether the action succeeded or not.
+   */
+  async trust(): Promise<boolean> {
+    if (
+      (await this.isAnyActive()) &&
+      (await this.page
+        .locator('[data-icon="ui-components:not-trusted"]')
+        .count()) === 1
+    ) {
+      await this.page.keyboard.press('Control+Shift+C');
+      await this.page.getByPlaceholder('SEARCH', { exact: true }).fill('trust');
+      await this.page.getByText('Trust Notebook').click();
+      await this.page.getByRole('button', { name: 'Trust' }).click();
+
+      return (
+        (await this.page
+          .locator('[data-icon="ui-components:trusted"]')
+          .count()) === 1
+      );
+    }
+
+    return true;
+  }
+
   /**
    * Wait for notebook cells execution to finish
+   *
+   * @param cellIndex Cell index
    */
-  async waitForRun(): Promise<void> {
-    await this.page.evaluate(async () => {
-      await window.galataip.waitForNotebookRun();
-    });
+  async waitForRun(cellIndex?: number): Promise<void> {
+    const idleLocator = this.page.locator('#jp-main-statusbar >> text=Idle');
+    await idleLocator.waitFor();
+
+    // Wait for all cells to have an execution count
+    let done = false;
+    do {
+      await this.page.waitForTimeout(20);
+      done = await this.page.evaluate(cellIdx => {
+        return window.galata.haveBeenExecuted(cellIdx);
+      }, cellIndex);
+    } while (!done);
   }
 
   /**
@@ -409,9 +454,37 @@ export class NotebookHelper {
       return -1;
     }
 
-    const cells = await notebook.$$('div.jp-Cell');
+    const scrollTop = await notebook.evaluate(node => node.scrollTop);
+
+    // Scroll to bottom
+    let previousScrollHeight = scrollTop;
+    let scrollHeight =
+      previousScrollHeight +
+      (await notebook.evaluate(node => node.clientHeight));
+    do {
+      await notebook.evaluate((node, scrollTarget) => {
+        node.scrollTo({ top: scrollTarget });
+      }, scrollHeight);
+      await this.page.waitForTimeout(50);
+      previousScrollHeight = scrollHeight;
+      scrollHeight = await notebook.evaluate(
+        node => node.scrollHeight - node.clientHeight
+      );
+    } while (scrollHeight > previousScrollHeight);
+
+    const lastCell = await notebook.$$('div.jp-Cell >> nth=-1');
+    const count =
+      parseInt(
+        (await lastCell[0].getAttribute('data-windowed-list-index')) ?? '0',
+        10
+      ) + 1;
+
+    // Scroll back to original position
+    await notebook.evaluate((node, scrollTarget) => {
+      node.scrollTo({ top: scrollTarget });
+    }, scrollTop);
 
-    return cells.length;
+    return count;
   };
 
   /**
@@ -426,13 +499,94 @@ export class NotebookHelper {
       return null;
     }
 
-    const cells = await notebook.$$('div.jp-Cell');
+    const allCells = await notebook.$$('div.jp-Cell');
+    const filters = await Promise.all(allCells.map(c => c.isVisible()));
+    const cells = allCells.filter((c, i) => filters[i]);
 
-    if (cellIndex < 0 || cellIndex >= cells.length) {
-      return null;
+    const firstCell = cells[0];
+    const lastCell = cells[cells.length - 1];
+
+    let firstIndex = parseInt(
+      (await firstCell.getAttribute('data-windowed-list-index')) ?? '0',
+      10
+    );
+    let lastIndex = parseInt(
+      (await lastCell.getAttribute('data-windowed-list-index')) ?? '0',
+      10
+    );
+
+    if (cellIndex < firstIndex) {
+      // Scroll up
+      let scrollTop =
+        (await firstCell.boundingBox())?.y ??
+        (await notebook.evaluate(node => node.scrollTop - node.clientHeight));
+
+      do {
+        await notebook.evaluate((node, scrollTarget) => {
+          node.scrollTo({ top: scrollTarget });
+        }, scrollTop);
+        await this.page.waitForTimeout(50);
+
+        const cells = await notebook.$$('div.jp-Cell');
+        const isVisible = await Promise.all(cells.map(c => c.isVisible()));
+        const firstCell = isVisible.findIndex(visibility => visibility);
+
+        firstIndex = parseInt(
+          (await cells[firstCell].getAttribute('data-windowed-list-index')) ??
+            '0',
+          10
+        );
+        scrollTop =
+          (await cells[firstCell].boundingBox())?.y ??
+          (await notebook.evaluate(node => node.scrollTop - node.clientHeight));
+      } while (scrollTop > 0 && firstIndex > cellIndex);
+    } else if (cellIndex > lastIndex) {
+      const clientHeight = await notebook.evaluate(node => node.clientHeight);
+      // Scroll down
+      const viewport = await (
+        await notebook.$$('.jp-WindowedPanel-window')
+      )[0].boundingBox();
+      let scrollHeight = viewport!.y + viewport!.height;
+      let previousScrollHeight = 0;
+
+      do {
+        previousScrollHeight = scrollHeight;
+        await notebook.evaluate((node, scrollTarget) => {
+          node.scrollTo({ top: scrollTarget });
+        }, scrollHeight);
+        await this.page.waitForTimeout(50);
+
+        const cells = await notebook.$$('div.jp-Cell');
+        const isVisible = await Promise.all(cells.map(c => c.isVisible()));
+        const lastCell = isVisible.lastIndexOf(true);
+
+        lastIndex = parseInt(
+          (await cells[lastCell].getAttribute('data-windowed-list-index')) ??
+            '0',
+          10
+        );
+
+        const viewport = await (
+          await notebook.$$('.jp-WindowedPanel-window')
+        )[0].boundingBox();
+        scrollHeight = viewport!.y + viewport!.height;
+        // Avoid jitter
+        scrollHeight = Math.max(
+          previousScrollHeight + clientHeight,
+          scrollHeight
+        );
+      } while (scrollHeight > previousScrollHeight && lastIndex < cellIndex);
     }
 
-    return cells[cellIndex];
+    if (firstIndex <= cellIndex && cellIndex <= lastIndex) {
+      return (
+        await notebook.$$(
+          `div.jp-Cell[data-windowed-list-index="${cellIndex}"]`
+        )
+      )[0];
+    } else {
+      return null;
+    }
   }
 
   /**
@@ -704,6 +858,117 @@ export class NotebookHelper {
     return false;
   }
 
+  /**
+   * Clicks a cell gutter line for code cells
+   *
+   * @param cellIndex Cell index
+   * @param lineNumber Cell line number, starts at 1
+   */
+  async clickCellGutter(
+    cellIndex: number,
+    lineNumber: number
+  ): Promise<boolean> {
+    if (lineNumber < 1) {
+      return false;
+    }
+
+    if (!(await this.isCellGutterPresent(cellIndex))) {
+      return false;
+    }
+
+    const cell = await this.getCell(cellIndex);
+    const gutters = await cell!.$$(
+      '.cm-gutters > .cm-gutter.cm-breakpoint-gutter > .cm-gutterElement'
+    );
+    if (gutters.length < lineNumber) {
+      return false;
+    }
+    await gutters[lineNumber].click();
+    return true;
+  }
+
+  /**
+   * Check if cell gutter is present
+   *
+   * @param cellIndex
+   */
+  async isCellGutterPresent(cellIndex: number): Promise<boolean> {
+    const cell = await this.getCell(cellIndex);
+    if (!cell) {
+      return false;
+    }
+    return (await cell.$('.cm-gutters')) !== null;
+  }
+
+  /**
+   * Wait until cell gutter is visible
+   *
+   * @param cellIndex
+   */
+  async waitForCellGutter(cellIndex: number): Promise<void> {
+    const cell = await this.getCell(cellIndex);
+    if (cell) {
+      await this.page.waitForSelector('.cm-gutters', {
+        state: 'attached'
+      });
+    }
+  }
+
+  /**
+   * Clicks a code gutter line for scripts
+   *
+   * @param lineNumber Cell line number, starts at 1
+   */
+  async clickCodeGutter(lineNumber: number): Promise<boolean> {
+    if (lineNumber < 1) {
+      return false;
+    }
+
+    if (!(await this.isCodeGutterPresent())) {
+      return false;
+    }
+
+    const panel = await this.activity.getPanel();
+    await panel!.waitForSelector(
+      '.cm-gutters > .cm-gutter.cm-breakpoint-gutter > .cm-gutterElement',
+      { state: 'attached' }
+    );
+    const gutters = await panel!.$$(
+      '.cm-gutters > .cm-gutter.cm-breakpoint-gutter > .cm-gutterElement'
+    );
+    if (gutters.length < lineNumber) {
+      return false;
+    }
+    await gutters[lineNumber].click();
+    return true;
+  }
+
+  /**
+   * Check if code gutter is present
+   *
+   */
+  async isCodeGutterPresent(): Promise<boolean> {
+    const panel = await this.activity.getPanel();
+    if (!panel) {
+      return false;
+    }
+    return (await panel.$('.cm-gutters')) !== null;
+  }
+
+  /**
+   * Wait until cell gutter is visible
+   *
+   * @param cellIndex
+   */
+  async waitForCodeGutter(): Promise<void> {
+    const panel = await this.activity.getPanel();
+    if (panel) {
+      await this.page.waitForSelector('.cm-gutters', {
+        state: 'attached'
+      });
+    }
+  }
+
   /**
    * Select cells
    *
@@ -741,7 +1006,7 @@ export class NotebookHelper {
    */
   async isCellSelected(cellIndex: number): Promise<boolean> {
     return await this.page.evaluate((cellIndex: number) => {
-      return window.galataip.isNotebookCellSelected(cellIndex);
+      return window.galata.isNotebookCellSelected(cellIndex);
     }, cellIndex);
   }
 
@@ -756,7 +1021,7 @@ export class NotebookHelper {
     }
 
     await this.page.evaluate(() => {
-      return window.galataip.deleteNotebookCells();
+      return window.galata.deleteNotebookCells();
     });
 
     return true;
@@ -778,11 +1043,9 @@ export class NotebookHelper {
 
     await this.selectCells(numCells - 1);
     await this.clickToolbarItem('insert');
-    await Utils.waitForCondition(
-      async (): Promise<boolean> => {
-        return (await this.getCellCount()) === numCells + 1;
-      }
-    );
+    await Utils.waitForCondition(async (): Promise<boolean> => {
+      return (await this.getCellCount()) === numCells + 1;
+    });
 
     return await this.setCell(numCells, cellType, source);
   }
@@ -864,6 +1127,14 @@ export class NotebookHelper {
 
     await selectInput.selectOption(cellType);
 
+    // Wait for the new cell to be rendered
+    let cell: ElementHandle | null;
+    let counter = 1;
+    do {
+      await this.page.waitForTimeout(50);
+      cell = await this.getCell(cellIndex);
+    } while (cell === null && counter++ < MAX_RETRIES);
+
     return true;
   }
 
@@ -878,14 +1149,13 @@ export class NotebookHelper {
     if (!notebook) {
       return null;
     }
-    const cells = await notebook.$$('div.jp-Cell');
 
-    if (cellIndex < 0 || cellIndex >= cells.length) {
+    const cell = await this.getCell(cellIndex);
+
+    if (!cell) {
       return null;
     }
 
-    const cell = cells[cellIndex];
-
     const classList = await Utils.getElementClassList(cell);
 
     if (classList.indexOf('jp-CodeCell') !== -1) {
@@ -918,10 +1188,13 @@ export class NotebookHelper {
       return false;
     }
 
+    await this.page.evaluate(cellIdx => {
+      window.galata.resetExecutionCount(cellIdx);
+    }, cellIndex);
     await this.page.keyboard.press(
       inplace === true ? 'Control+Enter' : 'Shift+Enter'
     );
-    await this.waitForRun();
+    await this.waitForRun(cellIndex);
 
     return true;
   }
diff --git a/galata/src/helpers/sidebar.ts b/galata/src/helpers/sidebar.ts
index f7922e3782d2..58600c3596c8 100644
--- a/galata/src/helpers/sidebar.ts
+++ b/galata/src/helpers/sidebar.ts
@@ -1,21 +1,21 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ElementHandle, Page } from '@playwright/test';
-import {
-  IPluginNameToInterfaceMap,
-  PLUGIN_ID_SETTINGS
-} from '../inpage/tokens';
-import { MenuHelper } from './menu';
-import * as Utils from '../utils';
+import type { IPluginNameToInterfaceMap } from '../extension';
 import { galata } from '../galata';
+import * as Utils from '../utils';
+import { MenuHelper } from './menu';
 
 /**
  * Sidebar helpers
  */
 export class SidebarHelper {
-  constructor(readonly page: Page, readonly menu: MenuHelper) {}
+  constructor(
+    readonly page: Page,
+    readonly menu: MenuHelper
+  ) {}
 
   /**
    * Whether a sidebar is opened or not
@@ -137,21 +137,31 @@ export class SidebarHelper {
   async moveAllTabsToLeft(): Promise<void> {
     await this.page.evaluate(
       async ({ pluginId }) => {
-        const settingRegistry = (await window.galataip.getPlugin(
+        const settingRegistry = (await window.galata.getPlugin(
           pluginId
         )) as ISettingRegistry;
-        const SIDEBAR_ID = '@jupyterlab/application-extension:sidebar';
-        const overrides = ((await settingRegistry.get(SIDEBAR_ID, 'overrides'))
-          .composite as any) as { [index: string]: any };
-        for (const widgetId of Object.keys(overrides)) {
-          overrides[widgetId] = 'left';
-        }
-        // default location of the property inspector and debugger is right, move it to left during tests
-        overrides['jp-property-inspector'] = 'left';
-        overrides['jp-debugger-sidebar'] = 'left';
-        await settingRegistry.set(SIDEBAR_ID, 'overrides', overrides as any);
+        const SHELL_ID = '@jupyterlab/application-extension:shell';
+        const sidebars = {
+          Debugger: 'left',
+          'Property Inspector': 'left',
+          'Extension Manager': 'left',
+          'File Browser': 'left',
+          'Sessions and Tabs': 'left',
+          'Table of Contents': 'left'
+        };
+        const currentLayout = (await settingRegistry.get(
+          SHELL_ID,
+          'layout'
+        )) as any;
+        await settingRegistry.set(SHELL_ID, 'layout', {
+          single: { ...currentLayout.single, ...sidebars },
+          multiple: { ...currentLayout.multiple, ...sidebars }
+        });
       },
-      { pluginId: PLUGIN_ID_SETTINGS as keyof IPluginNameToInterfaceMap }
+      {
+        pluginId:
+          '@jupyterlab/apputils-extension:settings' as keyof IPluginNameToInterfaceMap
+      }
     );
 
     await this.page.waitForFunction(() => {
@@ -201,10 +211,22 @@ export class SidebarHelper {
     side: galata.SidebarPosition = 'left'
   ): Promise<ElementHandle<Element> | null> {
     return await this.page.$(
-      `#jp-${side}-stack .p-StackedPanel-child:not(.lm-mod-hidden)`
+      `#jp-${side}-stack .lm-StackedPanel-child:not(.lm-mod-hidden)`
     );
   }
 
+  /**
+   * Get the tab bar of the sidebar
+   *
+   * @param side Position
+   * @returns Tab bar handle
+   */
+  async getTabBar(
+    side: galata.SidebarPosition = 'left'
+  ): Promise<ElementHandle<Element> | null> {
+    return await this.page.$(`.jp-SideBar.jp-mod-${side}`);
+  }
+
   /**
    * Open a given sidebar
    *
diff --git a/galata/src/helpers/statusbar.ts b/galata/src/helpers/statusbar.ts
index f0d9b80a0582..560bf88b24b4 100644
--- a/galata/src/helpers/statusbar.ts
+++ b/galata/src/helpers/statusbar.ts
@@ -8,7 +8,10 @@ import { MenuHelper } from './menu';
  * Status Bar helpers
  */
 export class StatusBarHelper {
-  constructor(readonly page: Page, readonly menu: MenuHelper) {}
+  constructor(
+    readonly page: Page,
+    readonly menu: MenuHelper
+  ) {}
 
   /**
    * Whether the status bar is visible or not
@@ -20,7 +23,7 @@ export class StatusBarHelper {
       const statusBar = document.querySelector(
         '#jp-main-statusbar'
       ) as HTMLElement;
-      return window.galataip.isElementVisible(statusBar);
+      return window.galata.isElementVisible(statusBar);
     });
   }
 
diff --git a/galata/src/helpers/style.ts b/galata/src/helpers/style.ts
new file mode 100644
index 000000000000..b43a4f5dcfaf
--- /dev/null
+++ b/galata/src/helpers/style.ts
@@ -0,0 +1,100 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Page } from '@playwright/test';
+
+interface IUnusedStyleCheckOptions {
+  /**
+   * List of rule fragments to match rules for runtime checks.
+   */
+  fragments: string[];
+  /**
+   * List of fragments to filter out rules which cannot (easily) be checked at runtime.
+   */
+  exclude?: string[];
+  /**
+   * Whether to check rules with pseudo-classes.
+   *
+   * Default: false.
+   */
+  includePseudoClasses?: boolean;
+  /**
+   * Whether to include rules matching mod classes (`jp-mod-` and `.lm-mod-`).
+   *
+   * Default: false.
+   */
+  includeModifiers?: boolean;
+}
+
+/**
+ * CSS Style analysis helpers
+ */
+export class StyleHelper {
+  constructor(readonly page: Page) {}
+
+  /**
+   * Collect all CSS selectors on page.
+   */
+  async collectAllSelectors(): Promise<string[]> {
+    return this.page.evaluate(() =>
+      [...document.querySelectorAll('style')]
+        .filter(style => style.sheet !== null)
+        .map(style => [...style.sheet!.cssRules])
+        .flat()
+        .filter((rule: CSSRule) => rule instanceof CSSStyleRule)
+        .map((rule: CSSStyleRule) => rule.selectorText)
+    );
+  }
+
+  /**
+   * Find unused CSS rules.
+   *
+   * @param options spcify which rules to include/exclude.
+   * @returns List of rules with no matching elements on the page.
+   */
+  async findUnusedStyleRules(
+    options: IUnusedStyleCheckOptions
+  ): Promise<string[]> {
+    let exclude = typeof options.exclude !== 'undefined' ? options.exclude : [];
+    if (!options.includeModifiers) {
+      exclude = [...exclude, ...['.jp-mod-', '.lm-mod-']];
+    }
+    const relevantRules = (await this.collectAllSelectors())
+      // detection of pseudo-elements with `document.querySelector` is impossible,
+      // so we just check their parents
+      .map(selector =>
+        selector.replace(
+          /::?(after|before|backdrop|cue|cue-region|first-letter|first-line|file-selector-button|marker|placeholder|selection)/,
+          ''
+        )
+      )
+      .filter(selector =>
+        options.includePseudoClasses ? true : !selector.match(/:\w+/)
+      )
+      .filter(selector =>
+        options.fragments.some(fragment => selector.includes(fragment))
+      )
+      .filter(
+        selector => !exclude.some(fragment => selector.includes(fragment))
+      );
+    const potentiallyUnusedRules = await this.page.evaluate(
+      relevantRules =>
+        relevantRules.filter(
+          selector => document.querySelector(selector) == null
+        ),
+      relevantRules
+    );
+    if (potentiallyUnusedRules.length !== 0) {
+      console.log(
+        potentiallyUnusedRules.length,
+        'out of',
+        relevantRules.length,
+        'CSS rules for',
+        options.fragments,
+        'may be unused:',
+        potentiallyUnusedRules
+      );
+    }
+    return potentiallyUnusedRules;
+  }
+}
diff --git a/galata/src/helpers/theme.ts b/galata/src/helpers/theme.ts
index 3703cd0a2025..9d349b61e811 100644
--- a/galata/src/helpers/theme.ts
+++ b/galata/src/helpers/theme.ts
@@ -42,7 +42,7 @@ export class ThemeHelper {
   async setTheme(themeName: string): Promise<void> {
     const page = this.page;
     await page.evaluate(async (themeName: string) => {
-      await window.galataip.setTheme(themeName);
+      await window.galata.setTheme(themeName);
     }, themeName);
 
     await page.waitForSelector('#jupyterlab-splash', { state: 'detached' });
diff --git a/galata/src/index.ts b/galata/src/index.ts
index 2706959c46ca..07e8277cc80a 100644
--- a/galata/src/index.ts
+++ b/galata/src/index.ts
@@ -11,9 +11,9 @@
  */
 export { expect } from '@playwright/test';
 
+export * from './extension';
+
 export * from './benchmarkReporter';
 export * from './galata';
-export * from './global';
-export * from './inpage/tokens';
 export * from './fixtures';
 export * from './jupyterlabpage';
diff --git a/galata/src/jupyterlabpage.ts b/galata/src/jupyterlabpage.ts
index 41a9d9543cda..623abe64f535 100644
--- a/galata/src/jupyterlabpage.ts
+++ b/galata/src/jupyterlabpage.ts
@@ -1,11 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import type { ElementHandle, Page, Response } from '@playwright/test';
-import * as path from 'path';
+import type { Notification } from '@jupyterlab/apputils';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
+import type { ElementHandle, Locator, Page, Response } from '@playwright/test';
 import { ContentsHelper } from './contents';
+import type { IPluginNameToInterfaceMap } from './extension';
 import {
   ActivityHelper,
+  DebuggerHelper,
   FileBrowserHelper,
   KernelHelper,
   LogConsoleHelper,
@@ -14,6 +17,7 @@ import {
   PerformanceHelper,
   SidebarHelper,
   StatusBarHelper,
+  StyleHelper,
   ThemeHelper
 } from './helpers';
 import * as Utils from './utils';
@@ -62,6 +66,11 @@ export interface IJupyterLabPage {
    */
   readonly notebook: NotebookHelper;
 
+  /**
+   * JupyterLab notifications
+   */
+  readonly notifications: Promise<Notification.INotification[]>;
+
   /**
    * Webbrowser performance helpers
    */
@@ -74,16 +83,32 @@ export interface IJupyterLabPage {
    * JupyterLab sidebar helpers
    */
   readonly sidebar: SidebarHelper;
+  /**
+   * JupyterLab style helpers
+   */
+  readonly style: StyleHelper;
   /**
    * JupyterLab theme helpers
    */
   readonly theme: ThemeHelper;
 
+  /**
+   * JupyterLab launcher tab
+   */
+  readonly launcher: Locator;
+
   /**
    * Selector for launcher tab
+   *
+   * @deprecated You should use locator selector {@link launcher}
    */
   readonly launcherSelector: string;
 
+  /**
+   * Debugger helper
+   */
+  readonly debugger: DebuggerHelper;
+
   /**
    * Getter for JupyterLab base URL
    */
@@ -162,8 +187,9 @@ export interface IJupyterLabPage {
        * - `'domcontentloaded'` - consider operation to be finished when the `DOMContentLoaded` event is fired.
        * - `'load'` - consider operation to be finished when the `load` event is fired.
        * - `'networkidle'` - consider operation to be finished when there are no network connections for at least `500` ms.
+       * - `'commit'` - consider operation to be finished when network response is received and the document started loading.
        */
-      waitUntil?: 'load' | 'domcontentloaded' | 'networkidle';
+      waitUntil?: 'load' | 'domcontentloaded' | 'networkidle' | 'commit';
     }
   ): Promise<Response | null>;
 
@@ -186,7 +212,7 @@ export interface IJupyterLabPage {
   setSimpleMode(simple: boolean): Promise<boolean>;
 
   /**
-   * Wait for a  condition to be fulfilled
+   * Wait for a condition to be fulfilled
    *
    * @param condition Condition to fulfill
    * @param timeout Maximal time to wait for the condition to be true
@@ -207,6 +233,8 @@ export interface IJupyterLabPage {
    * Factory for active activity tab xpath
    *
    * @returns The selector
+   *
+   * @deprecated You should use locator selector `getByRole('main').locator('.jp-mod-current[role="tab"]')`
    */
   xpBuildActiveActivityTabSelector(): string;
 
@@ -214,6 +242,9 @@ export interface IJupyterLabPage {
    * Factory for activity panel xpath by id
    * @param id Panel id
    * @returns The selector
+   *
+   * @deprecated You should use locator selector `getByRole('main').getByRole('tabpanel', { name })`
+   *   where `name` is the name of the tab.
    */
   xpBuildActivityPanelSelector(id: string): string;
 
@@ -222,6 +253,8 @@ export interface IJupyterLabPage {
    *
    * @param name Activity name
    * @returns The selector
+   *
+   * @deprecated You should use locator selector `getByRole('main').getByRole('tab', { name })`
    */
   xpBuildActivityTabSelector(name: string): string;
 
@@ -230,6 +263,8 @@ export interface IJupyterLabPage {
    *
    * @param className Class name
    * @returns The selector
+   *
+   * @deprecated You should use locator CSS selector `locator('.className')`
    */
   xpContainsClass(className: string): string;
 }
@@ -254,7 +289,7 @@ export class JupyterLabPage implements IJupyterLabPage {
   ) {
     this.waitIsReady = waitForApplication;
     this.activity = new ActivityHelper(page);
-    this.contents = new ContentsHelper(baseURL, page, page.context().request);
+    this.contents = new ContentsHelper(page.context().request, page);
     this.filebrowser = new FileBrowserHelper(page, this.contents);
     this.kernel = new KernelHelper(page);
     this.logconsole = new LogConsoleHelper(page);
@@ -269,7 +304,9 @@ export class JupyterLabPage implements IJupyterLabPage {
     this.performance = new PerformanceHelper(page);
     this.statusbar = new StatusBarHelper(page, this.menu);
     this.sidebar = new SidebarHelper(page, this.menu);
+    this.style = new StyleHelper(page);
     this.theme = new ThemeHelper(page);
+    this.debugger = new DebuggerHelper(page, this.sidebar, this.notebook);
   }
 
   /**
@@ -307,6 +344,13 @@ export class JupyterLabPage implements IJupyterLabPage {
    */
   readonly notebook: NotebookHelper;
 
+  /**
+   * JupyterLab notifications
+   */
+  get notifications(): Promise<Notification.INotification[]> {
+    return this.page.evaluate(async () => window.galata.getNotifications());
+  }
+
   /**
    * Webbrowser performance helpers
    */
@@ -321,13 +365,33 @@ export class JupyterLabPage implements IJupyterLabPage {
    * JupyterLab sidebar helpers
    */
   readonly sidebar: SidebarHelper;
+
+  /**
+   * JupyterLab style helpers
+   */
+  readonly style: StyleHelper;
+
   /**
    * JupyterLab theme helpers
    */
   readonly theme: ThemeHelper;
 
+  /**
+   * JupyterLab debugger helper
+   */
+  readonly debugger: DebuggerHelper;
+
+  /**
+   * JupyterLab launcher tab
+   */
+  get launcher(): Locator {
+    return this.activity.launcher;
+  }
+
   /**
    * Selector for launcher tab
+   *
+   * @deprecated You should use locator selector {@link launcher}
    */
   get launcherSelector(): string {
     return this.activity.launcherSelector;
@@ -441,14 +505,9 @@ export class JupyterLabPage implements IJupyterLabPage {
   /**
    * Whether JupyterLab is in simple mode or not
    */
-  isInSimpleMode = async (): Promise<boolean> => {
-    const toggle = await this.page.$(
-      '#jp-single-document-mode button.jp-switch'
-    );
-    const checked = (await toggle?.getAttribute('aria-checked')) === 'true';
-
-    return checked;
-  };
+  isInSimpleMode(): Promise<boolean> {
+    return Utils.isInSimpleMode(this.page);
+  }
 
   /**
    * Returns the main resource response. In case of multiple redirects, the navigation will resolve with the response of the
@@ -513,8 +572,20 @@ export class JupyterLabPage implements IJupyterLabPage {
     await this.kernel.shutdownAll();
     // show status bar
     await this.statusbar.show();
-    // make sure all sidebar tabs are on left
-    await this.sidebar.moveAllTabsToLeft();
+    // Reset the layout
+    await this.page.evaluate(
+      async ({ pluginId }) => {
+        const settingRegistry = (await window.galata.getPlugin(
+          pluginId
+        )) as ISettingRegistry;
+        const SHELL_ID = '@jupyterlab/application-extension:shell';
+        await settingRegistry.remove(SHELL_ID, 'layout');
+      },
+      {
+        pluginId:
+          '@jupyterlab/apputils-extension:settings' as keyof IPluginNameToInterfaceMap
+      }
+    );
     // show Files tab on sidebar
     await this.sidebar.openTab('filebrowser');
     // go to home folder
@@ -576,6 +647,8 @@ export class JupyterLabPage implements IJupyterLabPage {
 
   /**
    * Factory for active activity tab xpath
+   *
+   * @deprecated You should use locator selector `getByRole('main').locator('.jp-mod-current[role="tab"]')`
    */
   xpBuildActiveActivityTabSelector(): string {
     return Utils.xpBuildActiveActivityTabSelector();
@@ -584,6 +657,9 @@ export class JupyterLabPage implements IJupyterLabPage {
   /**
    * Factory for activity panel xpath by id
    * @param id Panel id
+   *
+   * @deprecated You should use locator selector `getByRole('main').getByRole('tabpanel', { name })`
+   *   where `name` is the name of the tab.
    */
   xpBuildActivityPanelSelector(id: string): string {
     return Utils.xpBuildActivityPanelSelector(id);
@@ -592,6 +668,8 @@ export class JupyterLabPage implements IJupyterLabPage {
   /**
    * Factory for activity tab xpath by name
    * @param name Activity name
+   *
+   * @deprecated You should use locator selector `getByRole('main').getByRole('tab', { name })`
    */
   xpBuildActivityTabSelector(name: string): string {
     return Utils.xpBuildActivityTabSelector(name);
@@ -600,6 +678,8 @@ export class JupyterLabPage implements IJupyterLabPage {
   /**
    * Factory for element containing a given class xpath
    * @param className Class name
+   *
+   * @deprecated You should use locator CSS selector `locator('.className')`
    */
   xpContainsClass(className: string): string {
     return Utils.xpContainsClass(className);
@@ -609,21 +689,17 @@ export class JupyterLabPage implements IJupyterLabPage {
    * Inject the galata in-page helpers
    */
   protected async hookHelpersUp(): Promise<void> {
-    // Insert Galata in page helpers
-    await this.page.addScriptTag({
-      path: path.resolve(__dirname, './lib-inpage/inpage.js')
-    });
-
+    // Check galata helpers are loaded
     const galataipDefined = await this.page.evaluate(() => {
-      return Promise.resolve(typeof window.galataip === 'object');
+      return Promise.resolve(typeof window.galata === 'object');
     });
 
     if (!galataipDefined) {
-      throw new Error('Failed to inject galataip object into browser context');
+      throw new Error('Failed to activate galata extension');
     }
 
     const jlabAccessible = await this.page.evaluate(() => {
-      return Promise.resolve(typeof window.galataip.app === 'object');
+      return Promise.resolve(typeof window.galata.app === 'object');
     });
 
     if (!jlabAccessible) {
@@ -637,11 +713,7 @@ export class JupyterLabPage implements IJupyterLabPage {
   protected waitForAppStarted = async (): Promise<void> => {
     return this.waitForCondition(() =>
       this.page.evaluate(async () => {
-        if (typeof window.jupyterlab === 'object') {
-          // Wait for plugins to be loaded
-          await window.jupyterlab.started;
-          return true;
-        } else if (typeof window.jupyterapp === 'object') {
+        if (typeof window.jupyterapp === 'object') {
           // Wait for plugins to be loaded
           await window.jupyterapp.started;
           return true;
diff --git a/galata/src/playwright-config.ts b/galata/src/playwright-config.ts
index 13bfda52772f..a872bc7b889d 100644
--- a/galata/src/playwright-config.ts
+++ b/galata/src/playwright-config.ts
@@ -5,7 +5,10 @@ import { PlaywrightTestConfig } from '@playwright/test';
 
 // Default Playwright configuration for JupyterLab
 module.exports = {
-  reporter: [[process.env.CI ? 'dot' : 'list'], ['html']],
+  reporter: [
+    [process.env.CI ? 'github' : 'list'],
+    ['html', { open: process.env.CI ? 'never' : 'on-failure' }]
+  ],
   reportSlowTests: null,
   timeout: 60000,
   use: {
@@ -17,6 +20,7 @@ module.exports = {
     viewport: { width: 1024, height: 768 },
 
     // Artifacts
+    trace: 'on-first-retry',
     video: 'retain-on-failure'
   }
 } as PlaywrightTestConfig;
diff --git a/galata/src/utils.ts b/galata/src/utils.ts
index 0a4ce313644a..db163f81c25d 100644
--- a/galata/src/utils.ts
+++ b/galata/src/utils.ts
@@ -221,6 +221,8 @@ export async function waitForTransition(
  *
  * @param className Class name
  * @returns Selector
+ *
+ * @deprecated You should use locator CSS selector `locator('.className')`
  */
 export function xpContainsClass(className: string): string {
   return `contains(concat(" ", normalize-space(@class), " "), " ${className} ")`;
@@ -231,9 +233,11 @@ export function xpContainsClass(className: string): string {
  *
  * @param name Activity name
  * @returns Selector
+ *
+ * @deprecated You should use locator selector `getByRole('main').getByRole('tab', { name })`
  */
 export function xpBuildActivityTabSelector(name: string): string {
-  return `//div[${xpContainsClass('jp-Activity')}]/ul/li[${xpContainsClass(
+  return `//div[contains(@role, "main")]//ul/li[${xpContainsClass(
     'lm-TabBar-tab'
   )} and ./div[text()="${name}" and ${xpContainsClass('lm-TabBar-tabLabel')}]]`;
 }
@@ -243,6 +247,9 @@ export function xpBuildActivityTabSelector(name: string): string {
  *
  * @param id Activity id
  * @returns Selector
+ *
+ * @deprecated You should use locator selector `getByRole('main').getByRole('tabpanel', { name })`
+ *   where `name` is the name of the tab.
  */
 export function xpBuildActivityPanelSelector(id: string): string {
   return `//div[@id='${id}' and ${xpContainsClass(
@@ -254,11 +261,21 @@ export function xpBuildActivityPanelSelector(id: string): string {
  * Get the selector to look for the currently active activity tab
  *
  * @returns Selector
+ *
+ * @deprecated You should use locator selector `getByRole('main').locator('.jp-mod-current[role="tab"]')`
  */
 export function xpBuildActiveActivityTabSelector(): string {
-  return `//div[${xpContainsClass('jp-Activity')}]/ul/li[${xpContainsClass(
+  return `//div[contains(@role, "main")]//ul/li[${xpContainsClass(
     'lm-TabBar-tab'
-  )} and ${xpContainsClass('lm-mod-current')} and ./div[${xpContainsClass(
+  )} and ${xpContainsClass('jp-mod-current')} and ./div[${xpContainsClass(
     'lm-TabBar-tabLabel'
   )}]]`;
 }
+
+/**
+ * Whether JupyterLab is in simple mode or not
+ */
+export function isInSimpleMode(page: Page): Promise<boolean> {
+  const toggle = page.getByRole('switch', { name: 'Simple' });
+  return toggle.isChecked();
+}
diff --git a/galata/src/vega-statistics.d.ts b/galata/src/vega-statistics.d.ts
index b335f5edb305..dd70ea000eb5 100644
--- a/galata/src/vega-statistics.d.ts
+++ b/galata/src/vega-statistics.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 // Type definitions for vega-statistics
 // Project: vega-statistics
 // Definitions by: Jupyter Development Team
diff --git a/galata/test/benchmark/notebook.spec.ts b/galata/test/benchmark/notebook.spec.ts
index ebda73ff1b5b..c5c3a939ea53 100644
--- a/galata/test/benchmark/notebook.spec.ts
+++ b/galata/test/benchmark/notebook.spec.ts
@@ -21,8 +21,8 @@ const parameters = [].concat(
 
 test.describe('Benchmark', () => {
   // Generate the files for the benchmark
-  test.beforeAll(async ({ baseURL, request }) => {
-    const content = galata.newContentsHelper(baseURL, undefined, request);
+  test.beforeAll(async ({ request }) => {
+    const content = galata.newContentsHelper(request);
     const codeContent = galata.Notebook.generateNotebook(300, 'code', [
       'for x in range(OUTPUT_LENGTH):\n',
       '    print(f"{PREFIX} {x}")'
@@ -79,8 +79,8 @@ test.describe('Benchmark', () => {
   });
 
   // Remove benchmark files
-  test.afterAll(async ({ baseURL, request }) => {
-    const content = galata.newContentsHelper(baseURL, undefined, request);
+  test.afterAll(async ({ request }) => {
+    const content = galata.newContentsHelper(request);
     await content.deleteDirectory(tmpPath);
   });
 
@@ -140,8 +140,10 @@ test.describe('Benchmark', () => {
 
       // Shutdown the kernel to be sure it does not get in our way (especially for the close action)
       await page.click('li[role="menuitem"]:has-text("Kernel")');
-      await page.click('ul[role="menu"] >> text=Shut Down All Kernels…');
-      await page.click(':nth-match(button:has-text("Shut Down All"), 3)');
+      await page.click(
+        '.lm-Menu ul[role="menu"] >> text=Shut Down All Kernels…'
+      );
+      await page.click('button:has-text("Shut Down All") >> nth=-1'); // Click on the last matched button.
 
       // Open text file
       const fromTime = await perf.measure(async () => {
@@ -192,7 +194,7 @@ test.describe('Benchmark', () => {
       // Close notebook
       await page.click('li[role="menuitem"]:has-text("File")');
       const closeTime = await perf.measure(async () => {
-        await page.click('ul[role="menu"] >> text=Close Tab');
+        await page.click('.lm-Menu ul[role="menu"] >> text=Close Tab');
         // Revert changes so we don't measure saving
         const dimissButton = page.locator('button:has-text("Discard")');
         if (await dimissButton.isVisible({ timeout: 50 })) {
diff --git a/galata/test/benchmark/notebook.spec.ts-snapshots/large-code-notebook-ipynb-benchmark-linux.png b/galata/test/benchmark/notebook.spec.ts-snapshots/large-code-notebook-ipynb-benchmark-linux.png
index 378971d58db7..989668a8512d 100644
Binary files a/galata/test/benchmark/notebook.spec.ts-snapshots/large-code-notebook-ipynb-benchmark-linux.png and b/galata/test/benchmark/notebook.spec.ts-snapshots/large-code-notebook-ipynb-benchmark-linux.png differ
diff --git a/galata/test/benchmark/notebook.spec.ts-snapshots/large-md-notebook-ipynb-benchmark-linux.png b/galata/test/benchmark/notebook.spec.ts-snapshots/large-md-notebook-ipynb-benchmark-linux.png
index cd0a944b83a0..9431242025e8 100644
Binary files a/galata/test/benchmark/notebook.spec.ts-snapshots/large-md-notebook-ipynb-benchmark-linux.png and b/galata/test/benchmark/notebook.spec.ts-snapshots/large-md-notebook-ipynb-benchmark-linux.png differ
diff --git a/galata/test/documentation/commands.test.ts b/galata/test/documentation/commands.test.ts
new file mode 100644
index 000000000000..327999b5fc17
--- /dev/null
+++ b/galata/test/documentation/commands.test.ts
@@ -0,0 +1,63 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { expect } from '@playwright/test';
+import * as fs from 'fs-extra';
+
+test('All commands must have a default label', async ({ page }, testInfo) => {
+  const commands = await page.evaluate(async () => {
+    const registry = window.jupyterapp.commands;
+    const shortcuts = registry.keyBindings;
+    const commandIds = registry.listCommands();
+
+    // Get more information about the commands
+    const commands: {
+      id: string;
+      label: string;
+      caption: string;
+      shortcuts?: string[];
+    }[] = commandIds
+      .filter(id => !id.startsWith('_') && !id.startsWith('@jupyter-widgets'))
+      .sort()
+      .map(id => {
+        try {
+          return {
+            id,
+            label: registry.label(id),
+            caption: registry.caption(id),
+            shortcuts: [
+              ...(shortcuts.find(shortcut => shortcut.command === id)?.keys ??
+                [])
+            ]
+          };
+        } catch (reason) {
+          console.error(reason);
+          return {
+            id,
+            label: '',
+            caption: '',
+            shortcuts: [
+              ...(shortcuts.find(shortcut => shortcut.command === id)?.keys ??
+                [])
+            ]
+          };
+        }
+      });
+
+    return Promise.resolve(commands);
+  });
+
+  if (!(await fs.pathExists(testInfo.snapshotDir))) {
+    await fs.mkdir(testInfo.snapshotDir);
+  }
+  await fs.writeJSON(testInfo.snapshotPath('commandsList.json'), commands, {
+    encoding: 'utf-8',
+    spaces: 2
+  });
+
+  // All commands must at least define a label
+  const missingLabel = commands.filter(command => !command.label);
+
+  expect(missingLabel).toEqual([]);
+});
diff --git a/galata/test/documentation/commands.test.ts-snapshots/commandsList-documentation-linux.json b/galata/test/documentation/commands.test.ts-snapshots/commandsList-documentation-linux.json
new file mode 100644
index 000000000000..d1dfea719fa0
--- /dev/null
+++ b/galata/test/documentation/commands.test.ts-snapshots/commandsList-documentation-linux.json
@@ -0,0 +1,2268 @@
+[
+  {
+    "id": "application:activate-next-tab",
+    "label": "Activate Next Tab",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ]"
+    ]
+  },
+  {
+    "id": "application:activate-next-tab-bar",
+    "label": "Activate Next Tab Bar",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ."
+    ]
+  },
+  {
+    "id": "application:activate-previous-tab",
+    "label": "Activate Previous Tab",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ["
+    ]
+  },
+  {
+    "id": "application:activate-previous-tab-bar",
+    "label": "Activate Previous Tab Bar",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ,"
+    ]
+  },
+  {
+    "id": "application:close",
+    "label": "Close Tab",
+    "caption": "",
+    "shortcuts": [
+      "Alt W"
+    ]
+  },
+  {
+    "id": "application:close-all",
+    "label": "Close All Tabs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:close-other-tabs",
+    "label": "Close All Other Tabs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:close-right-tabs",
+    "label": "Close Tabs to Right",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:reset-layout",
+    "label": "Reset Default Layout",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:set-mode",
+    "label": "Set the layout `mode`.",
+    "caption": "The layout `mode` can be \"single-document\" or \"multiple-document\".",
+    "shortcuts": []
+  },
+  {
+    "id": "application:toggle-header",
+    "label": "Show Header",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:toggle-left-area",
+    "label": "Show Left Sidebar",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl B"
+    ]
+  },
+  {
+    "id": "application:toggle-mode",
+    "label": "Simple Interface",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift D"
+    ]
+  },
+  {
+    "id": "application:toggle-presentation-mode",
+    "label": "Presentation Mode",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:toggle-right-area",
+    "label": "Show Right Sidebar",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "application:toggle-side-tabbar",
+    "label": "Show Left Activity Bar",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:activate-command-palette",
+    "label": "Activate Command Palette",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift C"
+    ]
+  },
+  {
+    "id": "apputils:change-font",
+    "label": "waiting for fonts",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:change-theme",
+    "label": "Switch to the provided `theme`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:decr-font-size",
+    "label": "Decrease Font Size",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:dismiss-notification",
+    "label": "Dismiss a notification",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:display-notifications",
+    "label": "Show Notifications",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:display-shortcuts",
+    "label": "Show Keyboard Shortcuts",
+    "caption": "Show relevant keyboard shortcuts for the current active widget",
+    "shortcuts": [
+      "Ctrl Shift H"
+    ]
+  },
+  {
+    "id": "apputils:incr-font-size",
+    "label": "Increase Font Size",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:load-statedb",
+    "label": "Load state for the current workspace.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:notify",
+    "label": "Emit a notification",
+    "caption": "Notification is described by {message: string, type?: string, options?: {autoClose?: number | false, actions: {label: string, commandId: string, args?: ReadOnlyJSONObject, caption?: string, className?: string}[], data?: ReadOnlyJSONValue}}.",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:print",
+    "label": "Print…",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl P"
+    ]
+  },
+  {
+    "id": "apputils:reset",
+    "label": "Reset Application State",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:reset-on-load",
+    "label": "Reset state when loading for the workspace.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:run-all-enabled",
+    "label": "Run All Enabled Commands Passed as Args",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:run-first-enabled",
+    "label": "Run First Enabled Command",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:theme-scrollbars",
+    "label": "Theme Scrollbars",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:toggle-header",
+    "label": "Show Header Above Content",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "apputils:update-notification",
+    "label": "Update a notification",
+    "caption": "Notification is described by {id: string, message: string, type?: string, options?: {autoClose?: number | false, actions: {label: string, commandId: string, args?: ReadOnlyJSONObject, caption?: string, className?: string}[], data?: ReadOnlyJSONValue}}.",
+    "shortcuts": []
+  },
+  {
+    "id": "code-viewer:open",
+    "label": "Open Code Viewer",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "completer:invoke-console",
+    "label": "Display the completion helper.",
+    "caption": "",
+    "shortcuts": [
+      "Tab"
+    ]
+  },
+  {
+    "id": "completer:invoke-file",
+    "label": "Display the completion helper.",
+    "caption": "",
+    "shortcuts": [
+      "Tab"
+    ]
+  },
+  {
+    "id": "completer:invoke-notebook",
+    "label": "Display the completion helper.",
+    "caption": "",
+    "shortcuts": [
+      "Tab"
+    ]
+  },
+  {
+    "id": "completer:select-console",
+    "label": "Select the completion suggestion.",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "completer:select-file",
+    "label": "Select the completion suggestion.",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "completer:select-notebook",
+    "label": "Select the completion suggestion.",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "console:change-kernel",
+    "label": "Change Kernel…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:clear",
+    "label": "Clear Console Cells",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:close-and-shutdown",
+    "label": "Close and Shut Down…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:create",
+    "label": "Console",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:get-kernel",
+    "label": "Get Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:inject",
+    "label": "Inject some code in a console.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:interaction-mode",
+    "label": "Set the console interaction mode.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:interrupt-kernel",
+    "label": "Interrupt Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:linebreak",
+    "label": "Insert Line Break",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "console:open",
+    "label": "Open a console for the provided `path`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:replace-selection",
+    "label": "Replace Selection in Console",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:restart-kernel",
+    "label": "Restart Kernel…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:run-forced",
+    "label": "Run Cell (forced)",
+    "caption": "",
+    "shortcuts": [
+      "Shift Enter"
+    ]
+  },
+  {
+    "id": "console:run-unforced",
+    "label": "Run Cell (unforced)",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "console:shutdown",
+    "label": "Shut Down",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:toggle-autoclosing-brackets",
+    "label": "Auto Close Brackets for Code Console Prompt",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "console:toggle-show-all-kernel-activity",
+    "label": "Show All Kernel Activity",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "csv:go-to-line",
+    "label": "Go to Line",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:continue",
+    "label": "Pause",
+    "caption": "Pause",
+    "shortcuts": [
+      "F9"
+    ]
+  },
+  {
+    "id": "debugger:copy-to-clipboard",
+    "label": "Copy to Clipboard",
+    "caption": "Copy text representation of the value to clipboard",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:copy-to-globals",
+    "label": "Copy Variable to Globals",
+    "caption": "Copy variable to globals scope",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:evaluate",
+    "label": "Evaluate Code",
+    "caption": "Evaluate Code",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:inspect-variable",
+    "label": "Inspect Variable",
+    "caption": "Inspect Variable",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:next",
+    "label": "Next",
+    "caption": "Next",
+    "shortcuts": [
+      "F10"
+    ]
+  },
+  {
+    "id": "debugger:pause-on-exceptions",
+    "label": "Breakpoints on exception",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:render-mime-variable",
+    "label": "Render Variable",
+    "caption": "Render variable according to its mime type",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:restart-debug",
+    "label": "Restart Kernel and Debug…",
+    "caption": "Restart Kernel and Debug…",
+    "shortcuts": []
+  },
+  {
+    "id": "debugger:show-panel",
+    "label": "Debugger Panel",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift E"
+    ]
+  },
+  {
+    "id": "debugger:stepIn",
+    "label": "Step In",
+    "caption": "Step In",
+    "shortcuts": [
+      "F11"
+    ]
+  },
+  {
+    "id": "debugger:stepOut",
+    "label": "Step Out",
+    "caption": "Step Out",
+    "shortcuts": [
+      "Shift F11"
+    ]
+  },
+  {
+    "id": "debugger:terminate",
+    "label": "Terminate",
+    "caption": "Terminate",
+    "shortcuts": [
+      "Shift F9"
+    ]
+  },
+  {
+    "id": "docmanager:clone",
+    "label": "New View for ",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:delete",
+    "label": "Delete ",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:delete-file",
+    "label": "Delete ",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:download",
+    "label": "Download",
+    "caption": "Download the file to your computer",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:duplicate",
+    "label": "Duplicate ",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:new-untitled",
+    "label": "New undefined",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:open",
+    "label": "Open the provided `path`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:open-browser-tab",
+    "label": "Open in New Browser Tab",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:reload",
+    "label": "Reload  from Disk",
+    "caption": "Reload contents from disk",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:rename",
+    "label": "Rename…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:restore-checkpoint",
+    "label": "Revert  to Checkpoint…",
+    "caption": "Revert contents to previous checkpoint",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:save",
+    "label": "Save ",
+    "caption": "Save and create checkpoint",
+    "shortcuts": [
+      "Ctrl S"
+    ]
+  },
+  {
+    "id": "docmanager:save-all",
+    "label": "Save All",
+    "caption": "Save all open documents",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:save-as",
+    "label": "Save  As…",
+    "caption": "Save with new path",
+    "shortcuts": [
+      "Ctrl Shift S"
+    ]
+  },
+  {
+    "id": "docmanager:show-in-file-browser",
+    "label": "Show in File Browser",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "docmanager:toggle-autosave",
+    "label": "Autosave Documents",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "documentsearch:end",
+    "label": "End Search",
+    "caption": "",
+    "shortcuts": [
+      "Escape"
+    ]
+  },
+  {
+    "id": "documentsearch:highlightNext",
+    "label": "Find Next",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl G"
+    ]
+  },
+  {
+    "id": "documentsearch:highlightPrevious",
+    "label": "Find Previous",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift G"
+    ]
+  },
+  {
+    "id": "documentsearch:start",
+    "label": "Find…",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl F"
+    ]
+  },
+  {
+    "id": "documentsearch:startWithReplace",
+    "label": "Find and Replace…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "documentsearch:toggleSearchInSelection",
+    "label": "Search in Selection",
+    "caption": "",
+    "shortcuts": [
+      "Alt L"
+    ]
+  },
+  {
+    "id": "editmenu:clear-all",
+    "label": "Clear All",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "editmenu:clear-current",
+    "label": "Clear",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "editmenu:go-to-line",
+    "label": "Go to Line…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "editmenu:open",
+    "label": "Open Edit Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "editmenu:redo",
+    "label": "Redo",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift Z"
+    ]
+  },
+  {
+    "id": "editmenu:undo",
+    "label": "Undo",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Z"
+    ]
+  },
+  {
+    "id": "extensionmanager:show-panel",
+    "label": "Extension Manager",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift X"
+    ]
+  },
+  {
+    "id": "extensionmanager:toggle",
+    "label": "Enable Extension Manager",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:activate",
+    "label": "Open the file browser for the provided `path`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:copy",
+    "label": "Copy",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl C"
+    ]
+  },
+  {
+    "id": "filebrowser:copy-download-link",
+    "label": "Copy Download Link",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:copy-path",
+    "label": "Copy Path",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:create-new-directory",
+    "label": "New Folder",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:create-new-file",
+    "label": "New File",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:create-new-markdown-file",
+    "label": "New Markdown File",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:cut",
+    "label": "Cut",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl X"
+    ]
+  },
+  {
+    "id": "filebrowser:delete",
+    "label": "Delete",
+    "caption": "",
+    "shortcuts": [
+      "Delete"
+    ]
+  },
+  {
+    "id": "filebrowser:download",
+    "label": "Download",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:duplicate",
+    "label": "Duplicate",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl D"
+    ]
+  },
+  {
+    "id": "filebrowser:go-to-path",
+    "label": "Update the file browser to display the provided `path`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:go-up",
+    "label": "go up",
+    "caption": "",
+    "shortcuts": [
+      "Backspace"
+    ]
+  },
+  {
+    "id": "filebrowser:hide-main",
+    "label": "Hide the file browser.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:open",
+    "label": "Open",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:open-browser-tab",
+    "label": "Open in New Browser Tab",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:open-path",
+    "label": "Open from Path…",
+    "caption": "Open from path",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:open-url",
+    "label": "Open from URL…",
+    "caption": "Open from URL",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:paste",
+    "label": "Paste",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl V"
+    ]
+  },
+  {
+    "id": "filebrowser:refresh",
+    "label": "Refresh File List",
+    "caption": "Refresh the file browser.",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:rename",
+    "label": "Rename",
+    "caption": "",
+    "shortcuts": [
+      "F2"
+    ]
+  },
+  {
+    "id": "filebrowser:search",
+    "label": "Search on File Names",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:share-main",
+    "label": "Copy Shareable Link",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:shutdown",
+    "label": "Shut Down Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-file-checkboxes",
+    "label": "Show File Checkboxes",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-file-size",
+    "label": "Show File Size Column",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-hidden-files",
+    "label": "Show Hidden Files",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-last-modified",
+    "label": "Show Last Modified Column",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-main",
+    "label": "File Browser",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift F"
+    ]
+  },
+  {
+    "id": "filebrowser:toggle-navigate-to-current-directory",
+    "label": "Show Active File in File Browser",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filebrowser:toggle-sort-notebooks-first",
+    "label": "Sort Notebooks Above Files",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:change-font-size",
+    "label": "Decrease Font Size",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:change-language",
+    "label": "Change editor language.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:change-tabs",
+    "label": "Indent with Tab",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:change-theme",
+    "label": "jupyter",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:copy",
+    "label": "Copy",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:create-console",
+    "label": "Create Console for Editor",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:create-new",
+    "label": "Text File",
+    "caption": "Create a new text file",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:create-new-markdown-file",
+    "label": "Markdown File",
+    "caption": "Create a new markdown file",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:cut",
+    "label": "Cut",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:find",
+    "label": "Find…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:go-to-line",
+    "label": "Go to Line…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:markdown-preview",
+    "label": "Show Markdown Preview",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:paste",
+    "label": "Paste",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:redo",
+    "label": "Redo",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:replace-selection",
+    "label": "Replace Selection in Editor",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:restart-console",
+    "label": "Restart Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:run-all",
+    "label": "Run All Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:run-code",
+    "label": "Run Selected Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:select-all",
+    "label": "Select All",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-autoclosing-brackets",
+    "label": "Auto Close Brackets in Text Editor",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-autoclosing-brackets-universal",
+    "label": "Auto Close Brackets",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-current-line-numbers",
+    "label": "Show Line Numbers",
+    "caption": "Show the line numbers for the current file.",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-current-line-wrap",
+    "label": "Wrap Words",
+    "caption": "Wrap words for the current file.",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-current-match-brackets",
+    "label": "Match Brackets",
+    "caption": "Change match brackets for the current file.",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-line-numbers",
+    "label": "Show Line Numbers",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-line-wrap",
+    "label": "Word Wrap",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:toggle-match-brackets",
+    "label": "Match Brackets",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "fileeditor:undo",
+    "label": "Undo",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filemenu:close-and-cleanup",
+    "label": "Close and Shut Down",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift Q"
+    ]
+  },
+  {
+    "id": "filemenu:create-console",
+    "label": "New Console for Activity",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filemenu:logout",
+    "label": "Log Out",
+    "caption": "Log out of JupyterLab",
+    "shortcuts": []
+  },
+  {
+    "id": "filemenu:open",
+    "label": "Open File Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "filemenu:shutdown",
+    "label": "Shut Down",
+    "caption": "Shut down JupyterLab",
+    "shortcuts": []
+  },
+  {
+    "id": "help:about",
+    "label": "About JupyterLab",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "help:jupyter-forum",
+    "label": "Jupyter Forum",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "help:license-report",
+    "label": "Download All Licenses as Markdown",
+    "caption": "Download All Licenses as Markdown",
+    "shortcuts": []
+  },
+  {
+    "id": "help:licenses",
+    "label": "Licenses",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "help:licenses-refresh",
+    "label": "Refresh Licenses",
+    "caption": "Refresh Licenses",
+    "shortcuts": []
+  },
+  {
+    "id": "help:open",
+    "label": "Open the provided `url` in a tab.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "helpmenu:get-kernel",
+    "label": "Get Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "helpmenu:open",
+    "label": "Open Help Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "htmlviewer:trust-html",
+    "label": "Trust HTML File",
+    "caption": "Whether the HTML file is trusted.\n    Trusting the file allows scripts to run in it,\n    which may result in security risks.\n    Only enable for files you trust.",
+    "shortcuts": []
+  },
+  {
+    "id": "imageviewer:flip-horizontal",
+    "label": "Flip image horizontally",
+    "caption": "",
+    "shortcuts": [
+      "H"
+    ]
+  },
+  {
+    "id": "imageviewer:flip-vertical",
+    "label": "Flip image vertically",
+    "caption": "",
+    "shortcuts": [
+      "V"
+    ]
+  },
+  {
+    "id": "imageviewer:invert-colors",
+    "label": "Invert Colors",
+    "caption": "",
+    "shortcuts": [
+      "I"
+    ]
+  },
+  {
+    "id": "imageviewer:reset-image",
+    "label": "Reset Image",
+    "caption": "",
+    "shortcuts": [
+      "0"
+    ]
+  },
+  {
+    "id": "imageviewer:rotate-clockwise",
+    "label": "Rotate Clockwise",
+    "caption": "",
+    "shortcuts": [
+      "]"
+    ]
+  },
+  {
+    "id": "imageviewer:rotate-counterclockwise",
+    "label": "Rotate Counterclockwise",
+    "caption": "",
+    "shortcuts": [
+      "["
+    ]
+  },
+  {
+    "id": "imageviewer:zoom-in",
+    "label": "Zoom In",
+    "caption": "",
+    "shortcuts": [
+      "="
+    ]
+  },
+  {
+    "id": "imageviewer:zoom-out",
+    "label": "Zoom Out",
+    "caption": "",
+    "shortcuts": [
+      "-"
+    ]
+  },
+  {
+    "id": "inspector:close",
+    "label": "Hide Contextual Help",
+    "caption": "Live updating code documentation from the active kernel",
+    "shortcuts": [
+      "Ctrl I"
+    ]
+  },
+  {
+    "id": "inspector:open",
+    "label": "Show Contextual Help",
+    "caption": "Live updating code documentation from the active kernel",
+    "shortcuts": [
+      "Ctrl I"
+    ]
+  },
+  {
+    "id": "inspector:toggle",
+    "label": "Show Contextual Help",
+    "caption": "Live updating code documentation from the active kernel",
+    "shortcuts": []
+  },
+  {
+    "id": "jupyterlab-translation:en",
+    "label": "English",
+    "caption": "English",
+    "shortcuts": []
+  },
+  {
+    "id": "jupyterlab-translation:zh_CN",
+    "label": "Chinese (Simplified, China) - 中文 (简体, 中国)",
+    "caption": "Chinese (Simplified, China) - 中文 (简体, 中国)",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:change",
+    "label": "Change Kernel…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:interrupt",
+    "label": "Interrupt Kernel",
+    "caption": "Interrupt the kernel",
+    "shortcuts": [
+      "I",
+      "I"
+    ]
+  },
+  {
+    "id": "kernelmenu:open",
+    "label": "Open Kernel Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:reconnect-to-kernel",
+    "label": "Reconnect to Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:restart",
+    "label": "Restart Kernel…",
+    "caption": "Restart the kernel",
+    "shortcuts": [
+      "0",
+      "0"
+    ]
+  },
+  {
+    "id": "kernelmenu:restart-and-clear",
+    "label": "Restart Kernel and Clear…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:shutdown",
+    "label": "Shut Down Kernel",
+    "caption": "Shut down kernel",
+    "shortcuts": []
+  },
+  {
+    "id": "kernelmenu:shutdownAll",
+    "label": "Shut Down All Kernels…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "launcher:create",
+    "label": "New Launcher",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift L"
+    ]
+  },
+  {
+    "id": "logconsole:add-checkpoint",
+    "label": "Add Checkpoint",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "logconsole:clear",
+    "label": "Clear Log",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "logconsole:open",
+    "label": "Show Log Console",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "logconsole:set-level",
+    "label": "Set log level to `level`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "mainmenu:open-first",
+    "label": "Open First Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "markdownviewer:edit",
+    "label": "Show Markdown Editor",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "markdownviewer:open",
+    "label": "Markdown Preview",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "mathjax:clipboard",
+    "label": "MathJax Copy Latex",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "mathjax:scale",
+    "label": "Mathjax Scale Reset",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:change-cell-to-code",
+    "label": "Change to Code Cell Type",
+    "caption": "",
+    "shortcuts": [
+      "Y"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-1",
+    "label": "Change to Heading 1",
+    "caption": "",
+    "shortcuts": [
+      "1"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-2",
+    "label": "Change to Heading 2",
+    "caption": "",
+    "shortcuts": [
+      "2"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-3",
+    "label": "Change to Heading 3",
+    "caption": "",
+    "shortcuts": [
+      "3"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-4",
+    "label": "Change to Heading 4",
+    "caption": "",
+    "shortcuts": [
+      "4"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-5",
+    "label": "Change to Heading 5",
+    "caption": "",
+    "shortcuts": [
+      "5"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-heading-6",
+    "label": "Change to Heading 6",
+    "caption": "",
+    "shortcuts": [
+      "6"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-markdown",
+    "label": "Change to Markdown Cell Type",
+    "caption": "",
+    "shortcuts": [
+      "M"
+    ]
+  },
+  {
+    "id": "notebook:change-cell-to-raw",
+    "label": "Change to Raw Cell Type",
+    "caption": "",
+    "shortcuts": [
+      "R"
+    ]
+  },
+  {
+    "id": "notebook:change-kernel",
+    "label": "Change Kernel…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:clear-all-cell-outputs",
+    "label": "Clear Outputs of All Cells",
+    "caption": "Clear all outputs of all cells",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:clear-cell-output",
+    "label": "Clear Cell Output",
+    "caption": "Clear outputs for the selected cells",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:close-and-shutdown",
+    "label": "Close and Shut Down Notebook",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:collapse-all-headings",
+    "label": "Collapse All Headings",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ArrowLeft"
+    ]
+  },
+  {
+    "id": "notebook:copy-cell",
+    "label": "Copy Cell",
+    "caption": "Copy this cell",
+    "shortcuts": [
+      "C"
+    ]
+  },
+  {
+    "id": "notebook:copy-to-clipboard",
+    "label": "Copy Output to Clipboard",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:create-console",
+    "label": "New Console for Notebook",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:create-new",
+    "label": "Notebook",
+    "caption": "Create a new notebook",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:create-output-view",
+    "label": "Create New View for Cell Output",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:cut-cell",
+    "label": "Cut Cell",
+    "caption": "Cut this cell",
+    "shortcuts": [
+      "X"
+    ]
+  },
+  {
+    "id": "notebook:delete-cell",
+    "label": "Delete Cell",
+    "caption": "Delete this cell",
+    "shortcuts": [
+      "D",
+      "D"
+    ]
+  },
+  {
+    "id": "notebook:deselect-all",
+    "label": "Deselect All Cells",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:disable-output-scrolling",
+    "label": "Disable Scrolling for Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:duplicate-below",
+    "label": "Duplicate Cell Below",
+    "caption": "Create a duplicate of this cell below",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:enable-output-scrolling",
+    "label": "Enable Scrolling for Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:enter-command-mode",
+    "label": "Enter Command Mode",
+    "caption": "",
+    "shortcuts": [
+      "Escape"
+    ]
+  },
+  {
+    "id": "notebook:enter-edit-mode",
+    "label": "Enter Edit Mode",
+    "caption": "",
+    "shortcuts": [
+      "Enter"
+    ]
+  },
+  {
+    "id": "notebook:expand-all-headings",
+    "label": "Expand All Headings",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift ArrowRight"
+    ]
+  },
+  {
+    "id": "notebook:export-to-format",
+    "label": "Save and Export Notebook to the given `format`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:extend-marked-cells-above",
+    "label": "Extend Selection Above",
+    "caption": "",
+    "shortcuts": [
+      "Shift ArrowUp"
+    ]
+  },
+  {
+    "id": "notebook:extend-marked-cells-below",
+    "label": "Extend Selection Below",
+    "caption": "",
+    "shortcuts": [
+      "Shift ArrowDown"
+    ]
+  },
+  {
+    "id": "notebook:extend-marked-cells-bottom",
+    "label": "Extend Selection to Bottom",
+    "caption": "",
+    "shortcuts": [
+      "Shift End"
+    ]
+  },
+  {
+    "id": "notebook:extend-marked-cells-top",
+    "label": "Extend Selection to Top",
+    "caption": "",
+    "shortcuts": [
+      "Shift Home"
+    ]
+  },
+  {
+    "id": "notebook:get-kernel",
+    "label": "Get Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:hide-all-cell-code",
+    "label": "Collapse All Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:hide-all-cell-outputs",
+    "label": "Collapse All Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:hide-cell-code",
+    "label": "Collapse Selected Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:hide-cell-outputs",
+    "label": "Collapse Selected Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:insert-cell-above",
+    "label": "Insert Cell Above",
+    "caption": "Insert a cell above",
+    "shortcuts": [
+      "A"
+    ]
+  },
+  {
+    "id": "notebook:insert-cell-below",
+    "label": "Insert Cell Below",
+    "caption": "Insert a cell below",
+    "shortcuts": [
+      "B"
+    ]
+  },
+  {
+    "id": "notebook:insert-heading-above",
+    "label": "Insert Heading Above Current Heading",
+    "caption": "",
+    "shortcuts": [
+      "Shift A"
+    ]
+  },
+  {
+    "id": "notebook:insert-heading-below",
+    "label": "Insert Heading Below Current Heading",
+    "caption": "",
+    "shortcuts": [
+      "Shift B"
+    ]
+  },
+  {
+    "id": "notebook:interrupt-kernel",
+    "label": "Interrupt Kernel",
+    "caption": "Interrupt the kernel",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:merge-cell-above",
+    "label": "Merge Cell Above",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Backspace"
+    ]
+  },
+  {
+    "id": "notebook:merge-cell-below",
+    "label": "Merge Cell Below",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift M"
+    ]
+  },
+  {
+    "id": "notebook:merge-cells",
+    "label": "Merge Selected Cells",
+    "caption": "",
+    "shortcuts": [
+      "Shift M"
+    ]
+  },
+  {
+    "id": "notebook:move-cell-down",
+    "label": "Move Cell Down",
+    "caption": "Move this cell down",
+    "shortcuts": [
+      "Ctrl Shift ArrowDown"
+    ]
+  },
+  {
+    "id": "notebook:move-cell-up",
+    "label": "Move Cell Up",
+    "caption": "Move this cell up",
+    "shortcuts": [
+      "Ctrl Shift ArrowUp"
+    ]
+  },
+  {
+    "id": "notebook:move-cursor-down",
+    "label": "Select Cell Below",
+    "caption": "",
+    "shortcuts": [
+      "ArrowDown"
+    ]
+  },
+  {
+    "id": "notebook:move-cursor-heading-above-or-collapse",
+    "label": "Select Heading Above or Collapse Heading",
+    "caption": "",
+    "shortcuts": [
+      "ArrowLeft"
+    ]
+  },
+  {
+    "id": "notebook:move-cursor-heading-below-or-expand",
+    "label": "Select Heading Below or Expand Heading",
+    "caption": "",
+    "shortcuts": [
+      "ArrowRight"
+    ]
+  },
+  {
+    "id": "notebook:move-cursor-up",
+    "label": "Select Cell Above",
+    "caption": "",
+    "shortcuts": [
+      "ArrowUp"
+    ]
+  },
+  {
+    "id": "notebook:paste-and-replace-cell",
+    "label": "Paste Cell and Replace",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:paste-cell-above",
+    "label": "Paste Cell Above",
+    "caption": "Paste this cell from the clipboard",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:paste-cell-below",
+    "label": "Paste Cell Below",
+    "caption": "Paste this cell from the clipboard",
+    "shortcuts": [
+      "V"
+    ]
+  },
+  {
+    "id": "notebook:reconnect-to-kernel",
+    "label": "Reconnect to Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:redo",
+    "label": "Redo",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:redo-cell-action",
+    "label": "Redo Cell Operation",
+    "caption": "",
+    "shortcuts": [
+      "Shift Z"
+    ]
+  },
+  {
+    "id": "notebook:render-all-markdown",
+    "label": "Render All Markdown Cells",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:replace-selection",
+    "label": "Replace Selection in Notebook Cell",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:restart-and-run-to-selected",
+    "label": "Restart Kernel and Run up to Selected Cell…",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:restart-clear-output",
+    "label": "Restart Kernel and Clear Outputs of All Cells…",
+    "caption": "Restart the kernel and clear all outputs of all cells",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:restart-kernel",
+    "label": "Restart Kernel…",
+    "caption": "Restart the kernel",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:restart-run-all",
+    "label": "Restart Kernel and Run All Cells…",
+    "caption": "Restart the kernel and run all cells",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:run-all-above",
+    "label": "Run All Above Selected Cell",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:run-all-below",
+    "label": "Run Selected Cell and All Below",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:run-all-cells",
+    "label": "Run All Cells",
+    "caption": "Run all cells",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:run-cell",
+    "label": "Run Selected Cell and Do not Advance",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Enter"
+    ]
+  },
+  {
+    "id": "notebook:run-cell-and-insert-below",
+    "label": "Run Selected Cell and Insert Below",
+    "caption": "",
+    "shortcuts": [
+      "Alt Enter"
+    ]
+  },
+  {
+    "id": "notebook:run-cell-and-select-next",
+    "label": "Run Selected Cell",
+    "caption": "Run this cell and advance",
+    "shortcuts": [
+      "Shift Enter"
+    ]
+  },
+  {
+    "id": "notebook:run-in-console",
+    "label": "Run Selected Text or Current Line in Console",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:select-all",
+    "label": "Select All Cells",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl A"
+    ]
+  },
+  {
+    "id": "notebook:select-last-run-cell",
+    "label": "Select current running or last run cell",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:set-side-by-side-ratio",
+    "label": "Set side-by-side ratio",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:show-all-cell-code",
+    "label": "Expand All Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:show-all-cell-outputs",
+    "label": "Expand All Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:show-cell-code",
+    "label": "Expand Selected Code",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:show-cell-outputs",
+    "label": "Expand Selected Outputs",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:shutdown-kernel",
+    "label": "Shut Down Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:split-cell-at-cursor",
+    "label": "Split Cell",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift -"
+    ]
+  },
+  {
+    "id": "notebook:toggle-all-cell-line-numbers",
+    "label": "Show Line Numbers",
+    "caption": "",
+    "shortcuts": [
+      "Shift L"
+    ]
+  },
+  {
+    "id": "notebook:toggle-autoclosing-brackets",
+    "label": "Auto Close Brackets for All Notebook Cell Types",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:toggle-heading-collapse",
+    "label": "Toggle Collapse Notebook Heading",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:toggle-render-side-by-side-current",
+    "label": "Render Side-by-Side",
+    "caption": "",
+    "shortcuts": [
+      "Shift R"
+    ]
+  },
+  {
+    "id": "notebook:trust",
+    "label": "Trust Notebook",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:undo",
+    "label": "Undo",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "notebook:undo-cell-action",
+    "label": "Undo Cell Operation",
+    "caption": "",
+    "shortcuts": [
+      "Z"
+    ]
+  },
+  {
+    "id": "property-inspector:show-panel",
+    "label": "Property Inspector",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift U"
+    ]
+  },
+  {
+    "id": "rendermime:handle-local-link",
+    "label": "Handle Local Link",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "runmenu:open",
+    "label": "Open Run Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "runmenu:restart-and-run-all",
+    "label": "Restart Kernel and Run All",
+    "caption": "Restart Kernel and Run All",
+    "shortcuts": []
+  },
+  {
+    "id": "runmenu:run",
+    "label": "Run Selected",
+    "caption": "Run Selected",
+    "shortcuts": [
+      "Shift Enter"
+    ]
+  },
+  {
+    "id": "runmenu:run-all",
+    "label": "Run All",
+    "caption": "Run All",
+    "shortcuts": []
+  },
+  {
+    "id": "running:kernel-new-console",
+    "label": "New Console for Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "running:kernel-new-notebook",
+    "label": "New Notebook for Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "running:kernel-open-session",
+    "label": "Unknown Session",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "running:kernel-shut-down",
+    "label": "Shut Down Kernel",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "running:show-panel",
+    "label": "Sessions and Tabs",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift B"
+    ]
+  },
+  {
+    "id": "settingeditor:open",
+    "label": "Settings Editor",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl ,"
+    ]
+  },
+  {
+    "id": "settingeditor:open-json",
+    "label": "Advanced Settings Editor",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "settingeditor:revert",
+    "label": "Revert User Settings",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "settingeditor:save",
+    "label": "Save User Settings",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl S"
+    ]
+  },
+  {
+    "id": "settingsmenu:open",
+    "label": "Open Settings Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "sidebar:switch",
+    "label": "Switch Sidebar Side",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "statusbar:toggle",
+    "label": "Show Status Bar",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "tabsmenu:activate-by-id",
+    "label": "Activate a widget by its `id`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "tabsmenu:activate-previously-used-tab",
+    "label": "Activate Previously Used Tab",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift '"
+    ]
+  },
+  {
+    "id": "tabsmenu:open",
+    "label": "Open Tabs Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:copy",
+    "label": "Copy",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:create-new",
+    "label": "Terminal",
+    "caption": "Start a new terminal session",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:decrease-font",
+    "label": "Decrease Terminal Font Size",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:increase-font",
+    "label": "Increase Terminal Font Size",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:open",
+    "label": "Open a terminal by its `name`.",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:paste",
+    "label": "Paste",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:refresh",
+    "label": "Refresh Terminal",
+    "caption": "Refresh the current terminal session",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:set-theme",
+    "label": "Set terminal theme to the provided `theme`.",
+    "caption": "Set the terminal theme",
+    "shortcuts": []
+  },
+  {
+    "id": "terminal:shut-down",
+    "label": "Shutdown Terminal",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "toc:display-h1-numbering",
+    "label": "Show first-level heading number",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "toc:display-numbering",
+    "label": "Show heading number in the document",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "toc:display-outputs-numbering",
+    "label": "Show output headings",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "toc:run-cells",
+    "label": "Select and Run Cell(s) for this Heading",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "toc:show-panel",
+    "label": "Table of Contents",
+    "caption": "",
+    "shortcuts": [
+      "Ctrl Shift K"
+    ]
+  },
+  {
+    "id": "toc:toggle-collapse",
+    "label": "Collapse All Headings",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "tooltip:dismiss",
+    "label": "Dismiss the tooltip",
+    "caption": "",
+    "shortcuts": [
+      "Escape"
+    ]
+  },
+  {
+    "id": "tooltip:launch-console",
+    "label": "Open the tooltip",
+    "caption": "",
+    "shortcuts": [
+      "Shift Tab"
+    ]
+  },
+  {
+    "id": "tooltip:launch-file",
+    "label": "Open the tooltip",
+    "caption": "",
+    "shortcuts": [
+      "Shift Tab"
+    ]
+  },
+  {
+    "id": "tooltip:launch-notebook",
+    "label": "Open the tooltip",
+    "caption": "",
+    "shortcuts": [
+      "Shift Tab"
+    ]
+  },
+  {
+    "id": "tsv:go-to-line",
+    "label": "Go to Line",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "viewmenu:line-numbering",
+    "label": "Show Line Numbers",
+    "caption": "",
+    "shortcuts": [
+      "Shift L"
+    ]
+  },
+  {
+    "id": "viewmenu:match-brackets",
+    "label": "Match Brackets",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "viewmenu:open",
+    "label": "Open View Menu",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "viewmenu:word-wrap",
+    "label": "Wrap Words",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "workspace-ui:save",
+    "label": "Save Current Workspace",
+    "caption": "",
+    "shortcuts": []
+  },
+  {
+    "id": "workspace-ui:save-as",
+    "label": "Save Current Workspace As…",
+    "caption": "",
+    "shortcuts": []
+  }
+]
diff --git a/galata/test/documentation/customization.test.ts b/galata/test/documentation/customization.test.ts
new file mode 100644
index 000000000000..4cd400f0789a
--- /dev/null
+++ b/galata/test/documentation/customization.test.ts
@@ -0,0 +1,280 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import { setSidebarWidth } from './utils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('Default', () => {
+  test('should use default layout', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.menu.clickMenuItem('File>New>Terminal');
+
+    await page.waitForSelector('.jp-Terminal');
+
+    expect(await page.screenshot()).toMatchSnapshot(
+      'default-terminal-position-single.png'
+    );
+  });
+
+  test('should use default toolbars', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Lorenz.ipynb');
+
+    await page.waitForSelector('div[role="main"] >> text=Lorenz.ipynb');
+
+    // Wait for kernel to settle on idle
+    await page
+      .locator('.jp-DebuggerBugButton[aria-disabled="false"]')
+      .waitFor();
+    await page
+      .locator('.jp-Notebook-ExecutionIndicator[data-status="idle"]')
+      .waitFor();
+
+    expect(
+      await page
+        .locator('div[role="main"] >> .jp-NotebookPanel-toolbar')
+        .screenshot()
+    ).toMatchSnapshot('default-notebook-toolbar.png');
+  });
+
+  test('should use default menu bar', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.click('text=Tabs');
+
+    await page.waitForSelector('#jp-mainmenu-tabs');
+
+    expect(
+      await page.screenshot({ clip: { x: 0, y: 0, width: 800, height: 200 } })
+    ).toMatchSnapshot('default-menu-bar.png');
+  });
+
+  test('should use default context menu', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.click('text=Lorenz.ipynb', { button: 'right' });
+
+    await page.hover('ul[role="menu"] >> text=New File');
+
+    expect(
+      await page.screenshot({ clip: { x: 0, y: 0, width: 500, height: 500 } })
+    ).toMatchSnapshot('default-context-menu.png');
+  });
+});
+
+test.describe('Customized', () => {
+  test.use({
+    mockSettings: {
+      ...galata.DEFAULT_SETTINGS,
+      '@jupyterlab/application-extension:context-menu': {
+        contextMenu: [
+          // Disable New notebook entry
+          {
+            command: 'notebook:create-new',
+            selector: '.jp-DirListing-content',
+            args: {
+              isContextMenu: true
+            },
+            disabled: true
+          },
+          // Add new entry on notebook file to export them as Markdown
+          {
+            command: 'notebook:export-to-format',
+            selector: '.jp-DirListing-item[data-file-type="notebook"]',
+            rank: 3,
+            // Command arguments
+            args: {
+              format: 'markdown',
+              label: 'Export as Markdown'
+            }
+          }
+        ]
+      },
+      '@jupyterlab/application-extension:shell': {
+        layout: {
+          single: {
+            'Linked Console': { area: 'down' },
+            Inspector: { area: 'down' },
+            'Cloned Output': { area: 'down' },
+            // Add new terminals in the down area in simple mode
+            Terminal: { area: 'down' }
+          },
+          multiple: {
+            // Add new terminals in the right sidebar in default mode
+            Terminal: { area: 'right' }
+          }
+        }
+      },
+      '@jupyterlab/notebook-extension:panel': {
+        toolbar: [
+          // Disable the restart and run all button
+          {
+            name: 'restart-and-run',
+            disabled: true
+          },
+          // Add a new button to clear all cell outputs
+          {
+            name: 'clear-all-outputs',
+            command: 'notebook:clear-all-cell-outputs'
+          }
+        ]
+      },
+      '@jupyterlab/mainmenu-extension:plugin': {
+        menus: [
+          {
+            // Disable the Run menu
+            id: 'jp-mainmenu-run',
+            disabled: true
+          },
+          {
+            // Move the Tabs menu to the end by changing its rank
+            id: 'jp-mainmenu-tabs',
+            rank: 1100,
+            items: [
+              // Add a new entry in the Tabs menu
+              {
+                command: 'launcher:create',
+                rank: 0
+              }
+            ]
+          }
+        ]
+      }
+    }
+  });
+  test('should use customized layout', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.menu.clickMenuItem('File>New>Terminal');
+
+    await page.waitForSelector('.jp-Terminal');
+
+    await setSidebarWidth(page, 271, 'right');
+
+    expect(await page.screenshot()).toMatchSnapshot(
+      'customized-terminal-position-single.png'
+    );
+  });
+
+  test('should use customized toolbars', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Lorenz.ipynb');
+
+    await page.waitForSelector('div[role="main"] >> text=Lorenz.ipynb');
+
+    await page.waitForSelector('text=Python 3 (ipykernel) | Idle');
+
+    expect(
+      await page
+        .locator('div[role="main"] >> .jp-NotebookPanel-toolbar')
+        .screenshot()
+    ).toMatchSnapshot('customized-notebook-toolbar.png');
+  });
+
+  test('should use customized menu bar', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.click('text=Tabs');
+
+    await page.waitForSelector('#jp-mainmenu-tabs');
+
+    expect(
+      await page.screenshot({ clip: { x: 0, y: 0, width: 800, height: 200 } })
+    ).toMatchSnapshot('customized-menu-bar.png');
+  });
+
+  test('should use customized context menu', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.click('text=Lorenz.ipynb', { button: 'right' });
+
+    await page.hover('ul[role="menu"] >> text=New File');
+
+    expect(
+      await page.screenshot({ clip: { x: 0, y: 0, width: 500, height: 500 } })
+    ).toMatchSnapshot('customized-context-menu.png');
+  });
+});
diff --git a/galata/test/documentation/customization.test.ts-snapshots/customized-context-menu-documentation-linux.png b/galata/test/documentation/customization.test.ts-snapshots/customized-context-menu-documentation-linux.png
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diff --git a/galata/test/documentation/customization.test.ts-snapshots/default-terminal-position-single-documentation-linux.png b/galata/test/documentation/customization.test.ts-snapshots/default-terminal-position-single-documentation-linux.png
new file mode 100644
index 000000000000..46c3cacade64
Binary files /dev/null and b/galata/test/documentation/customization.test.ts-snapshots/default-terminal-position-single-documentation-linux.png differ
diff --git a/galata/test/documentation/data/extensions-search-all.json b/galata/test/documentation/data/extensions-search-all.json
new file mode 100644
index 000000000000..5ce569887987
--- /dev/null
+++ b/galata/test/documentation/data/extensions-search-all.json
@@ -0,0 +1,104 @@
+[
+  {
+    "name": "jupyterlab-git",
+    "description": "A JupyterLab extension for version control using git",
+    "homepage_url": "https://github.com/jupyterlab/jupyterlab-git",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "0.37.1",
+    "status": "ok",
+    "author": "Jupyter Development Team",
+    "license": "BSD-3-Clause"
+  },
+  {
+    "name": "jupyterlab-github",
+    "description": "JupyterLab viewer for GitHub repositories",
+    "homepage_url": "https://github.com/jupyterlab/jupyterlab-github",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "3.0.1",
+    "status": "ok",
+    "author": "Anna Smith",
+    "license": "BSD-3-Clause"
+  },
+  {
+    "name": "jupyterlab-plugin-graph",
+    "description": "JupyterLab extension to show an interactive dependency graph of the installed plugins",
+    "homepage_url": "https://github.com/jupyterlab-contrib/jupyterlab-plugin-graph.git",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "0.2.1",
+    "status": "ok",
+    "author": "JupyterLab Contrib Team",
+    "license": ""
+  },
+  {
+    "name": "jupyterlab-plugin-playground",
+    "description": "A JupyterLab Plugin Playground.",
+    "homepage_url": "https://github.com/jupyterlab/jupyterlab-plugin-playground",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "0.4.0",
+    "status": "ok",
+    "author": "Project Jupyter Contributors",
+    "license": "BSD-3-Clause"
+  },
+  {
+    "name": "jupyterlab-pullrequests",
+    "description": "Pull Requests for JupyterLab",
+    "homepage_url": "https://github.com/jupyterlab/pull-requests",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "3.0.2",
+    "status": "ok",
+    "author": "Jupyter Development Team",
+    "license": "BSD-3-Clause"
+  },
+  {
+    "name": "jupyterlab-recents",
+    "description": "Track recent files and folders.",
+    "homepage_url": "https://github.com/jupyterlab-contrib/jupyterlab-recents",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "3.1.0",
+    "status": "ok",
+    "author": "John Doe",
+    "license": "BSD-3-Clause"
+  }
+]
diff --git a/galata/test/documentation/data/extensions-search-drawio.json b/galata/test/documentation/data/extensions-search-drawio.json
new file mode 100644
index 000000000000..9a1aa38d410a
--- /dev/null
+++ b/galata/test/documentation/data/extensions-search-drawio.json
@@ -0,0 +1,36 @@
+[
+  {
+    "name": "ipydrawio",
+    "description": "Draw.io Diagrams as Jupyter Widgets",
+    "homepage_url": "https://ipydrawio.rtfd.io",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "1.2.0",
+    "status": "ok",
+    "author": "ipydrawio Contributors",
+    "license": "Apache-2.0"
+  },
+  {
+    "name": "ipydrawio-export",
+    "description": "PDF export for Drawio diagrams in JupyterLab",
+    "homepage_url": "https://ipydrawio.rtfd.io",
+    "pkg_type": "prebuilt",
+    "companion": null,
+    "core": false,
+    "enabled": false,
+    "install": null,
+    "installed": null,
+    "installed_version": "",
+    "is_allowed": true,
+    "latest_version": "1.2.0",
+    "status": "ok",
+    "author": "ipydrawio Contributors",
+    "license": "Apache-2.0"
+  }
+]
diff --git a/galata/test/documentation/data/extensions.json b/galata/test/documentation/data/extensions.json
new file mode 100644
index 000000000000..53f6b1e34349
--- /dev/null
+++ b/galata/test/documentation/data/extensions.json
@@ -0,0 +1,38 @@
+[
+  {
+    "name": "@jupyterlab/geojson-extension",
+    "description": "GeoJSON renderer for JupyterLab",
+    "homepage_url": "https://github.com/jupyterlab/jupyter-renderers",
+    "enabled": true,
+    "core": false,
+    "latest_version": "3.2.0",
+    "installed_version": "3.2.0",
+    "status": "ok",
+    "pkg_type": "prebuilt",
+    "is_allowed": true,
+    "installed": true,
+    "install": {
+      "packageManager": "python",
+      "packageName": "jupyterlab-geojson",
+      "uninstallInstructions": "Use your Python package manager (pip, conda, etc.) to uninstall the package jupyterlab-geojson"
+    }
+  },
+  {
+    "name": "@jupyter-widgets/jupyterlab-manager",
+    "description": "The JupyterLab extension providing Jupyter widgets.",
+    "homepage_url": "https://github.com/jupyter-widgets/ipywidgets",
+    "enabled": true,
+    "core": false,
+    "latest_version": "3.1.0",
+    "installed_version": "3.1.0",
+    "status": "ok",
+    "pkg_type": "prebuilt",
+    "is_allowed": true,
+    "installed": true,
+    "install": {
+      "packageManager": "python",
+      "packageName": "jupyterlab_widgets",
+      "uninstallInstructions": "Use your Python package manager (pip, conda, etc.) to uninstall the package jupyterlab_widgets"
+    }
+  }
+]
diff --git a/galata/test/documentation/data/jupyter.png b/galata/test/documentation/data/jupyter.png
new file mode 100644
index 000000000000..c013435c4cf8
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diff --git a/galata/test/documentation/debugger.test.ts b/galata/test/documentation/debugger.test.ts
new file mode 100644
index 000000000000..c97a8e6dcf38
--- /dev/null
+++ b/galata/test/documentation/debugger.test.ts
@@ -0,0 +1,358 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  expect,
+  galata,
+  IJupyterLabPageFixture,
+  test
+} from '@jupyterlab/galata';
+import { positionMouseOver, setSidebarWidth } from './utils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('Debugger', () => {
+  test('Kernel capability', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    // Wait for kernel to settle on idle
+    await page
+      .locator('.jp-DebuggerBugButton[aria-disabled="false"]')
+      .waitFor();
+    await page
+      .locator('.jp-Notebook-ExecutionIndicator[data-status="idle"]')
+      .waitFor();
+
+    expect(
+      await page.screenshot({
+        clip: { x: 1030, y: 62, width: 210, height: 28 }
+      })
+    ).toMatchSnapshot('debugger_kernel.png');
+  });
+
+  test('Activate', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    expect(
+      await page.screenshot({ clip: { y: 62, x: 780, width: 210, height: 28 } })
+    ).toMatchSnapshot('debugger_activate.png');
+  });
+
+  test('Set breakpoint', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Wait for breakpoint to finish appearing
+    await page.waitForTimeout(150);
+
+    expect(
+      await page.screenshot({
+        clip: { y: 100, x: 300, width: 300, height: 80 }
+      })
+    ).toMatchSnapshot('debugger_breakpoint.png');
+  });
+
+  test('Highlight run cell button', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    const runButton = await page.waitForSelector(
+      '.jp-Toolbar-item >> [data-command="notebook:run-cell-and-select-next"]'
+    );
+
+    // Inject mouse pointer
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [await positionMouseOver(runButton)]
+    );
+    await runButton.focus();
+    await runButton.hover();
+
+    expect(
+      await page.screenshot({ clip: { y: 62, x: 400, width: 190, height: 60 } })
+    ).toMatchSnapshot('debugger_run.png');
+  });
+
+  test('Stop on breakpoint', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Don't wait as it will be blocked
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+
+    expect(
+      await page.screenshot({
+        clip: { y: 100, x: 300, width: 300, height: 80 }
+      })
+    ).toMatchSnapshot('debugger_stop_on_breakpoint.png');
+
+    await page.click('button[title^=Continue]');
+  });
+
+  test('Breakpoints on exception', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await expect(page.locator('button.jp-PauseOnExceptions')).not.toHaveClass(
+      /lm-mod-toggled/
+    );
+    await page.locator('button.jp-PauseOnExceptions').click();
+    const menu = page.locator('.jp-PauseOnExceptions-menu');
+    await expect(menu).toBeVisible();
+    await expect(menu.locator('li.lm-Menu-item')).toHaveCount(3);
+    await expect(menu.locator('li.lm-Menu-item.lm-mod-toggled')).toHaveCount(0);
+
+    await menu
+      .locator('li div.lm-Menu-itemLabel:text("userUnhandled")')
+      .click();
+
+    await expect(page.locator('button.jp-PauseOnExceptions')).toHaveClass(
+      /lm-mod-toggled/
+    );
+
+    await page.notebook.enterCellEditingMode(0);
+    const keyboard = page.keyboard;
+    await keyboard.press('Control+A');
+    await keyboard.type('try:\n1/0\n', { delay: 100 });
+    await keyboard.press('Backspace');
+    await keyboard.type('except:\n2/0\n', { delay: 100 });
+
+    void page.notebook.runCell(0);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+    expect(
+      await page.screenshot({
+        clip: { y: 110, x: 300, width: 300, height: 80 }
+      })
+    ).toMatchSnapshot('debugger_stop_on_unhandled_exception.png');
+
+    await page.click('button[title^=Continue]');
+    await page.notebook.waitForRun(0);
+
+    await page.locator('button.jp-PauseOnExceptions').click();
+
+    await expect(menu.locator('li.lm-Menu-item.lm-mod-toggled')).toHaveCount(1);
+    await expect(
+      menu.locator('li:has(div.lm-Menu-itemLabel:text("userUnhandled"))')
+    ).toHaveClass(/lm-mod-toggled/);
+
+    await menu.locator('li div.lm-Menu-itemLabel:text("raised")').click();
+
+    void page.notebook.runCell(0);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+    expect(
+      await page.screenshot({
+        clip: { y: 110, x: 300, width: 300, height: 80 }
+      })
+    ).toMatchSnapshot('debugger_stop_on_raised_exception.png');
+    await page.click('button[title^=Continue]');
+    await page.click('button[title^=Continue]');
+  });
+
+  test('Debugger sidebar', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    const sidebar = await page.waitForSelector(
+      '[data-id="jp-debugger-sidebar"]'
+    );
+    await sidebar.click();
+    await setSidebarWidth(page, 251, 'right');
+
+    // Inject mouse pointer
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [await positionMouseOver(sidebar, { left: 0.25 })]
+    );
+
+    expect(
+      await page.screenshot({
+        clip: { y: 22, x: 1200, width: 85, height: 160 }
+      })
+    ).toMatchSnapshot('debugger_sidebar.png');
+  });
+
+  test('Variables panel', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Don't wait as it will be blocked
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint and the local variables to be displayed
+    await page.debugger.waitForCallStack();
+    await expect(page.locator('select[aria-label="Scope"]')).toHaveValue(
+      'Locals'
+    );
+
+    expect(
+      await page.screenshot({
+        clip: { y: 58, x: 998, width: 280, height: 138 }
+      })
+    ).toMatchSnapshot('debugger_variables.png');
+  });
+
+  test('Call Stack panel', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Don't wait as it will be blocked
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+
+    await expect(
+      page.locator('[aria-label="side panel content"] >> text=add').first()
+    ).toBeVisible();
+
+    // Don't compare screenshot as the kernel id varies
+    // Need to set precisely the path
+    await page.screenshot({
+      clip: { y: 196, x: 998, width: 280, height: 138 },
+      path: 'test/documentation/screenshots/debugger-callstack.png'
+    });
+
+    await page.click('button[title^=Continue]');
+  });
+
+  test('Breakpoints panel', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Don't wait as it will be blocked
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+
+    const breakpointsPanel = await page.debugger.getBreakPointsPanel();
+    expect(await breakpointsPanel.innerText()).toMatch(/ipykernel.*\/\d+.py/);
+
+    // Don't compare screenshot as the kernel id varies
+    // Need to set precisely the path
+    await page.screenshot({
+      clip: { y: 334, x: 998, width: 280, height: 138 },
+      path: 'test/documentation/screenshots/debugger-breakpoints.png'
+    });
+
+    await page.click('button[title^=Continue]');
+  });
+
+  test('Source panel', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await setSidebarWidth(page, 251, 'right');
+
+    await setBreakpoint(page);
+
+    // Don't wait as it will be blocked
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint
+    await page.debugger.waitForCallStack();
+
+    await expect(
+      page.locator(
+        '[aria-label="side panel content"] >> text=Source/tmp/ipykernel_'
+      )
+    ).toBeVisible();
+
+    // Don't compare screenshot as the kernel id varies
+    // Need to set precisely the path
+    await page.screenshot({
+      clip: { y: 478, x: 998, width: 280, height: 138 },
+      path: 'test/documentation/screenshots/debugger-source.png'
+    });
+
+    await page.click('button[title^=Continue]');
+  });
+});
+
+async function createNotebook(page: IJupyterLabPageFixture) {
+  await page.notebook.createNew();
+
+  await setSidebarWidth(page);
+
+  await page.waitForSelector('text=Python 3 (ipykernel) | Idle');
+}
+
+async function setBreakpoint(page: IJupyterLabPageFixture) {
+  await page.notebook.setCell(
+    0,
+    'code',
+    'def add(a, b):\nres = a + b\nreturn res'
+  );
+  await page.notebook.run();
+  await page.notebook.addCell('code', 'result = add(1, 2)\nprint(result)');
+
+  await page.notebook.clickCellGutter(0, 2);
+}
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index 000000000000..649d9324aad9
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diff --git a/galata/test/documentation/export_notebook.test.ts b/galata/test/documentation/export_notebook.test.ts
new file mode 100644
index 000000000000..69792ccbf73b
--- /dev/null
+++ b/galata/test/documentation/export_notebook.test.ts
@@ -0,0 +1,77 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import { setSidebarWidth } from './utils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('Export Notebook', () => {
+  test('Export Menu', async ({ page }) => {
+    await page.goto();
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Lorenz.ipynb');
+
+    await page.waitForSelector('text=Python 3 (ipykernel) | Idle');
+
+    await page.click('text=File');
+    await page.click(
+      '.lm-Menu ul[role="menu"] >> text=Save and Export Notebook As'
+    );
+
+    // Wait for Latex renderer
+    // note: requires the a11y/assistive-mml MathJax extension
+    await page.waitForSelector('text=(σ, β, ρ)');
+
+    expect(
+      await page.screenshot({ clip: { y: 5, x: 0, width: 700, height: 700 } })
+    ).toMatchSnapshot('exporting_menu.png');
+  });
+
+  test('Slides', async ({ page }) => {
+    await page.goto();
+
+    await setSidebarWidth(page);
+
+    await page
+      .locator('[aria-label="File Browser Section"]')
+      .getByText('notebooks')
+      .dblclick();
+    await page.getByText('Lorenz.ipynb').dblclick();
+
+    await page.getByText('Python 3 (ipykernel) | Idle').waitFor();
+
+    await page.getByTitle('Property Inspector').click();
+
+    await page
+      .locator('.jp-PropertyInspector')
+      .getByText('Common Tools')
+      .click();
+
+    await page
+      .locator('.jp-ActiveCellTool')
+      .getByText(/# The Lorenz/)
+      .waitFor();
+
+    await page
+      .locator(
+        '#jp-MetadataForm-\\@jupyterlab\\/notebook-extension\\:tools_\\/slideshow\\/slide_type'
+      )
+      .selectOption({ label: 'Slide' });
+    // Wait for Latex renderer
+    await page.getByText('(σ, β, ρ)').waitFor();
+
+    expect(
+      await page.screenshot({ clip: { y: 5, x: 283, width: 997, height: 400 } })
+    ).toMatchSnapshot('exporting_slide_type.png');
+  });
+});
diff --git a/galata/test/documentation/export_notebook.test.ts-snapshots/exporting-menu-documentation-linux.png b/galata/test/documentation/export_notebook.test.ts-snapshots/exporting-menu-documentation-linux.png
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diff --git a/galata/test/documentation/export_notebook.test.ts-snapshots/exporting-slide-type-documentation-linux.png b/galata/test/documentation/export_notebook.test.ts-snapshots/exporting-slide-type-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts b/galata/test/documentation/extension_manager.test.ts
new file mode 100644
index 000000000000..23e058a2f52b
--- /dev/null
+++ b/galata/test/documentation/extension_manager.test.ts
@@ -0,0 +1,180 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  expect,
+  galata,
+  IJupyterLabPageFixture,
+  test
+} from '@jupyterlab/galata';
+import { setSidebarWidth, stubGitHubUserIcons } from './utils';
+import { default as extensionsList } from './data/extensions.json';
+import { default as allExtensionsList } from './data/extensions-search-all.json';
+import { default as drawioExtensionsList } from './data/extensions-search-drawio.json';
+import { JSONExt } from '@lumino/coreutils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('Extension Manager', () => {
+  test.beforeEach(async ({ page }) => {
+    // Mock get extensions list
+    await page.route(galata.Routes.extensions, async (route, request) => {
+      const url = request.url();
+      switch (request.method()) {
+        case 'GET':
+          if (!url.includes('query')) {
+            return route.fulfill({
+              status: 200,
+              contentType: 'application/json',
+              body: JSON.stringify(extensionsList)
+            });
+          } else if (url.includes('query=drawio')) {
+            return route.fulfill({
+              status: 200,
+              contentType: 'application/json',
+              body: JSON.stringify(drawioExtensionsList)
+            });
+          } else {
+            return route.fulfill({
+              status: 200,
+              contentType: 'application/json',
+              body: JSON.stringify(allExtensionsList)
+            });
+          }
+        default:
+          return route.continue();
+      }
+    });
+  });
+
+  test('Sidebar', async ({ page }) => {
+    await page.goto();
+    await openExtensionSidebar(page);
+
+    expect(
+      await page.screenshot({ clip: { y: 31, x: 0, width: 283, height: 600 } })
+    ).toMatchSnapshot('extensions_default.png');
+  });
+
+  test('Warning', async ({ page }) => {
+    await page.goto();
+
+    await page.click('[title="Extension Manager"]');
+    expect(
+      await page.screenshot({ clip: { y: 31, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('extensions_disabled.png');
+  });
+
+  test('Warning acknowledge', async ({ page }) => {
+    await page.goto();
+
+    await openExtensionSidebar(page);
+
+    expect(
+      await page.screenshot({ clip: { y: 31, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('extensions_enabled.png');
+  });
+
+  test('Search', async ({ page }) => {
+    await stubGitHubUserIcons(page);
+
+    await page.goto();
+
+    await openExtensionSidebar(page);
+
+    await page.fill(
+      '.jp-extensionmanager-view >> [placeholder="Search"]',
+      'drawio'
+    );
+
+    await page.evaluate(() => {
+      (document.activeElement as HTMLElement).blur();
+    });
+
+    // We can not wait for extension kept by the keyword as they are already in the DOM
+    await page.waitForSelector('text=No entries');
+
+    expect(
+      await page.screenshot({ clip: { y: 31, x: 0, width: 283, height: 600 } })
+    ).toMatchSnapshot('extensions_search.png');
+  });
+});
+
+test.describe('Filtered Extension Manager', () => {
+  test('Blocked installed extension', async ({ page }) => {
+    // Mock get extensions list
+    const extensions = JSONExt.deepCopy(extensionsList);
+    extensions[0]['is_allowed'] = false;
+    await page.route(galata.Routes.extensions, async (route, request) => {
+      switch (request.method()) {
+        case 'GET':
+          return route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify(extensions)
+          });
+        default:
+          return route.continue();
+      }
+    });
+    await page.goto();
+
+    await openExtensionSidebar(page);
+
+    expect(
+      await page.screenshot({
+        clip: { x: 33, y: 100, width: 250, height: 280 }
+      })
+    ).toMatchSnapshot('extensions_blocked_list.png');
+  });
+
+  test('Allowed installed extension', async ({ page }) => {
+    // Mock get extensions list
+    const extensions = JSONExt.deepCopy(extensionsList);
+    extensions[1]['is_allowed'] = false;
+    await page.route(galata.Routes.extensions, async (route, request) => {
+      switch (request.method()) {
+        case 'GET':
+          return route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify(extensions)
+          });
+        default:
+          return route.continue();
+      }
+    });
+    await page.goto();
+
+    await openExtensionSidebar(page);
+
+    expect(
+      await page.screenshot({
+        clip: { x: 33, y: 100, width: 250, height: 280 }
+      })
+    ).toMatchSnapshot('extensions_allowed_list.png');
+  });
+});
+
+async function openExtensionSidebar(page: IJupyterLabPageFixture) {
+  await page.click('[title="Extension Manager"]');
+
+  await Promise.all([
+    page.waitForResponse(new RegExp(`${galata.Routes.extensions}?refresh=0`)),
+    page.waitForResponse(
+      new RegExp(
+        `${galata.Routes.extensions}?query&page=1&per_page=30&refresh=0`
+      )
+    ),
+    page.click('button:has-text("Yes")')
+  ]);
+  await page.waitForSelector(
+    '.jp-extensionmanager-view >> .jp-AccordionPanel-title[aria-expanded="false"] >> text=Warning'
+  );
+
+  await setSidebarWidth(page);
+}
diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-allowed-list-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-allowed-list-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-blocked-list-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-blocked-list-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-default-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-default-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-disabled-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-disabled-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-enabled-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-enabled-documentation-linux.png
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diff --git a/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-search-documentation-linux.png b/galata/test/documentation/extension_manager.test.ts-snapshots/extensions-search-documentation-linux.png
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diff --git a/galata/test/documentation/general.test.ts b/galata/test/documentation/general.test.ts
new file mode 100644
index 000000000000..6687ef44dcee
--- /dev/null
+++ b/galata/test/documentation/general.test.ts
@@ -0,0 +1,776 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import {
+  generateArrow,
+  positionMouse,
+  positionMouseOver,
+  setSidebarWidth
+} from './utils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('General', () => {
+  test('Welcome', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    // README.md in preview
+    await page.click('text=README.md', {
+      button: 'right'
+    });
+    await page.click('text=Open With');
+    await page.click('text=Markdown Preview');
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Lorenz.ipynb');
+
+    await page.click('text=File');
+    await page.click('.lm-Menu ul[role="menu"] >> text=New');
+    await page.click('#jp-mainmenu-file-new >> text=Terminal');
+
+    await page.click('text=File');
+    await page.click('.lm-Menu ul[role="menu"] >> text=New');
+    await page.click('#jp-mainmenu-file-new >> text=Console');
+    await page.click('button:has-text("Select")');
+
+    await page.dblclick('text=Data.ipynb');
+
+    await page.dblclick('text=lorenz.py');
+
+    await page.click('div[role="main"] >> text=Lorenz.ipynb');
+
+    await page.notebook.run();
+
+    const cell = await page.$(
+      '[aria-label="Code Cell Content with Output"] >> text=interactive'
+    );
+    await cell.click();
+    await page.keyboard.press('ContextMenu');
+    await page.click('text=Create New View for Cell Output');
+
+    // Emulate drag and drop
+    const viewerHandle = await page.$('div[role="main"] >> text=lorenz.py');
+    await viewerHandle.click();
+    const viewerBBox = await viewerHandle.boundingBox();
+
+    await page.mouse.move(
+      viewerBBox.x + 0.5 * viewerBBox.width,
+      viewerBBox.y + 0.5 * viewerBBox.height
+    );
+    await page.mouse.down();
+    await page.mouse.move(viewerBBox.x + 0.5 * viewerBBox.width, 600);
+    await page.mouse.up();
+
+    expect(await page.screenshot()).toMatchSnapshot('jupyterlab.png');
+  });
+
+  test('Overview', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await openOverview(page);
+
+    expect(await page.screenshot()).toMatchSnapshot('interface_jupyterlab.png');
+  });
+
+  test('Left Sidebar', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick('[aria-label="File Browser Section"] >> text=data');
+
+    await page.evaluate(() => {
+      (document.activeElement as HTMLElement).blur();
+    });
+
+    expect(
+      await page.screenshot({ clip: { y: 31, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('interface_left.png');
+  });
+
+  test('Right Sidebar', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await page.notebook.createNew();
+    await page.click('[title="Property Inspector"]');
+    await setSidebarWidth(page, 251, 'right');
+
+    expect(
+      await page.screenshot({
+        clip: { y: 32, x: 997, width: 283, height: 400 }
+      })
+    ).toMatchSnapshot('interface_right.png');
+
+    await page.click('.jp-PropertyInspector >> text=Common Tools');
+
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-InputPrompt')
+    ).not.toBeEmpty();
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-InputPrompt')
+    ).not.toHaveClass(/lm-mod-hidden/);
+
+    expect(
+      await page.screenshot({
+        clip: { y: 32, x: 997, width: 283, height: 400 }
+      })
+    ).toMatchSnapshot('interface_right_common.png');
+
+    // Expect the 'Raw NbConvert Format' field to be displayed only on raw cells
+    await expect(
+      page.locator(
+        '.jp-NotebookTools-tool .jp-FormGroup-fieldLabel:text("Raw NBConvert Format")'
+      )
+    ).toHaveCount(0);
+    await page.notebook.addCell('raw', 'Raw cell');
+    await expect(
+      page.locator(
+        '.jp-NotebookTools-tool .jp-FormGroup-fieldLabel:text("Raw NBConvert Format")'
+      )
+    ).toHaveCount(1);
+
+    // Open Advanced tools and get metadata content
+    await page.click('.jp-PropertyInspector >> text=Advanced Tools');
+    await expect(
+      page.locator('.jp-MetadataForm .jp-MetadataEditorTool')
+    ).toHaveCount(2);
+    const cellMetadata = await page
+      .locator('.jp-MetadataForm .jp-MetadataEditorTool')
+      .first()
+      .textContent();
+    const notebookMetadata = await page
+      .locator('.jp-MetadataForm .jp-MetadataEditorTool')
+      .last()
+      .textContent();
+    expect(cellMetadata).toContain('"tags": []');
+    expect(notebookMetadata).not.toContain('"base_numbering"');
+
+    // Expect adding tag is reflected in CellMetadataEditor
+    await page.click('.jp-CellTags .jp-CellTags-Add');
+    await page.keyboard.type('test-tag');
+    await page.keyboard.press('Enter');
+    await expect(
+      page.locator('.jp-CellTags .jp-CellTags-Holder span').first()
+    ).toHaveText('test-tag');
+
+    const newCellMetadata = (
+      await page
+        .locator('.jp-MetadataForm .jp-MetadataEditorTool')
+        .first()
+        .textContent()
+    )?.replace(/\s/g, '');
+    expect(newCellMetadata).toContain('"tags":["test-tag"]');
+
+    // Expect modifying 'toc base number' value is reflected in NotebookMetadataEditor
+    await page
+      .locator('.jp-MetadataForm input[label="Table of content - Base number"]')
+      .fill('3');
+    const newNotebookMetadata = (
+      await page
+        .locator('.jp-MetadataForm .jp-MetadataEditorTool')
+        .last()
+        .textContent()
+    )?.replace(/\s/g, '');
+    expect(newNotebookMetadata).toContain('"base_numbering":3');
+
+    // Test the active cell widget
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-ActiveCellTool-Content pre')
+    ).toHaveText('Raw cell');
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-InputPrompt')
+    ).toHaveClass(/lm-mod-hidden/);
+    await (await page.notebook.getCellInput(1))?.click();
+    await page.keyboard.type(' content');
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-ActiveCellTool-Content pre')
+    ).toHaveText('Raw cell content');
+
+    await page.notebook.addCell('code', 'print("test")');
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-ActiveCellTool-Content pre')
+    ).toHaveText('print("test")');
+    await expect(
+      page.locator('.jp-ActiveCellTool .jp-InputPrompt')
+    ).not.toHaveClass(/lm-mod-hidden/);
+    await expect(page.locator('.jp-ActiveCellTool .jp-InputPrompt')).toHaveText(
+      '[ ]:'
+    );
+
+    await page.notebook.runCell(2, true);
+    await expect(page.locator('.jp-ActiveCellTool .jp-InputPrompt')).toHaveText(
+      '[1]:'
+    );
+  });
+
+  test('Open tabs', async ({ page }) => {
+    await openOverview(page);
+
+    await page.click('[title="Running Terminals and Kernels"]');
+
+    await page
+      .locator(
+        '.jp-RunningSessions-item.jp-mod-kernel >> text="Python 3 (ipykernel)"'
+      )
+      .waitFor();
+    expect(
+      await page.screenshot({ clip: { y: 27, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('interface_tabs.png');
+  });
+
+  test('Tabs menu', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await openOverview(page);
+
+    await page.click('text="Tabs"');
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 210, width: 700, height: 350 } })
+    ).toMatchSnapshot('interface_tabs_menu.png');
+  });
+
+  test('File menu', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    // Inject arrow
+    await page.evaluate(
+      ([arrow]) => {
+        document.body.insertAdjacentHTML('beforeend', arrow);
+      },
+      [generateArrow({ x: 50, y: 55 }, -30)]
+    );
+
+    expect(
+      await page.screenshot({ clip: { y: 27, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('files_menu_left.png');
+  });
+
+  test('File New menu', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    await page.click('text=File');
+    await page.mouse.move(70, 40);
+    const fileMenuNewItem = await page.waitForSelector(
+      '.lm-Menu ul[role="menu"] >> text=New'
+    );
+    await fileMenuNewItem.click();
+
+    // Inject mouse
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [
+        await positionMouseOver(fileMenuNewItem, {
+          left: 0,
+          // small negative offset to place the cursor before "New"
+          offsetLeft: -17,
+          top: 0.5
+        })
+      ]
+    );
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 0, width: 620, height: 400 } })
+    ).toMatchSnapshot('files_menu_top.png');
+  });
+
+  test('Shareable link', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+
+    await page.click('text=Lorenz.ipynb', { button: 'right' });
+    await page.hover('text=Copy Shareable Link');
+
+    const itemHandle = await page.$('text=Copy Shareable Link');
+
+    // Inject mouse
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [await positionMouseOver(itemHandle, { top: 0.5, left: 0.55 })]
+    );
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 0, width: 500, height: 500 } })
+    ).toMatchSnapshot('files_shareable_link.png');
+  });
+
+  test('File New Text file', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    await page.click('text=File');
+    await page.mouse.move(70, 40);
+    await page.click('.lm-Menu ul[role="menu"] >> text=New');
+    await page.hover('.lm-Menu ul[role="menu"] >> text=Text File');
+
+    // Inject mouse
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [positionMouse({ x: 500, y: 110 })]
+    );
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 0, width: 620, height: 400 } })
+    ).toMatchSnapshot('files_create_text_file.png');
+  });
+
+  test('Text Editor Overview', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Open jupyterlab.md
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=narrative'
+    );
+    await page.dblclick('text=jupyterlab.md');
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    expect(await page.screenshot()).toMatchSnapshot('file_editor_overview.png');
+  });
+
+  test('Text Editor Settings', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    // Open jupyterlab.md
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=narrative'
+    );
+    await page.dblclick('text=jupyterlab.md');
+
+    await page.click('text=Settings');
+    await page.click(
+      '.lm-Menu ul[role="menu"] >> text=Text Editor Indentation'
+    );
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 260, width: 600, height: 450 } })
+    ).toMatchSnapshot('file_editor_settings.png');
+  });
+
+  test('Notebook', async ({ page }, testInfo) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    // Open Data.ipynb
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Data.ipynb');
+    await page.menu.clickMenuItem('Edit>Clear Outputs of All Cells');
+    await page.notebook.setCell(
+      1,
+      'code',
+      "import pandas\ndf = pandas.read_csv('../data/iris.csv')\ndf.head(5)"
+    );
+    await page.notebook.setCell(
+      3,
+      'code',
+      "import json\nfrom IPython.display import GeoJSON\nwith open('../data/Museums_in_DC.geojson') as f:\ns = GeoJSON(json.load(f), layer_options={'minZoom': 11})"
+    );
+    await page.notebook.run();
+
+    if (testInfo.config.updateSnapshots !== 'none') {
+      // Wait a bit for the map to load when updating the snapshots
+      await page.waitForTimeout(300);
+    }
+
+    // Relax threshold as displayed map may change a bit (in particular text positioning)
+    expect(await page.screenshot()).toMatchSnapshot('notebook_ui.png', {
+      maxDiffPixelRatio: 0.02
+    });
+  });
+
+  test('Trust indicator', async ({ page }) => {
+    await page.goto();
+    // Open Data.ipynb which is not trusted by default
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Data.ipynb');
+
+    const trustIndictor = page.locator('.jp-StatusItem-trust');
+
+    expect(await trustIndictor.screenshot()).toMatchSnapshot(
+      'notebook_not_trusted.png'
+    );
+
+    // Open trust dialog
+    // Note: we do not `await` here as it only resolves once dialog is closed
+    const trustPromise = page.evaluate(() => {
+      return window.jupyterapp.commands.execute('notebook:trust');
+    });
+    const dialogSelector = '.jp-Dialog-content';
+    await page.waitForSelector(dialogSelector);
+    // Accept option to trust the notebook
+    await page.click('.jp-Dialog-button.jp-mod-accept');
+    // Wait until dialog is gone
+    await trustPromise;
+
+    expect(await trustIndictor.screenshot()).toMatchSnapshot(
+      'notebook_trusted.png'
+    );
+  });
+
+  test('Heading anchor', async ({ page }, testInfo) => {
+    await page.goto();
+    await setSidebarWidth(page);
+
+    // Open Data.ipynb
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Data.ipynb');
+
+    const heading = await page.waitForSelector(
+      'h2[id="Open-a-CSV-file-using-Pandas"]'
+    );
+    const anchor = await heading.$('text=¶');
+    await heading.hover();
+
+    // Get parent cell which includes the heading
+    const cell = await heading.evaluateHandle(node => node.closest('.jp-Cell'));
+
+    // Inject mouse
+    await page.evaluate(
+      ([mouse]) => {
+        document.body.insertAdjacentHTML('beforeend', mouse);
+      },
+      [
+        await positionMouseOver(anchor, {
+          left: 1,
+          offsetLeft: 5,
+          top: 0.25
+        })
+      ]
+    );
+
+    expect(await cell.screenshot()).toMatchSnapshot(
+      'notebook_heading_anchor_link.png'
+    );
+  });
+
+  test('Terminals', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    // Open Data.ipynb
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Data.ipynb');
+
+    // Open a terminal
+    await page.click('text=File');
+    await page.click('.lm-Menu ul[role="menu"] >> text=New');
+    await page.click('#jp-mainmenu-file-new >> text=Terminal');
+
+    // Wait for the xterm.js element to be added in the DOM
+    await page.waitForSelector('.jp-Terminal-body');
+
+    await page.keyboard.type('cd $JUPYTERLAB_GALATA_ROOT_DIR');
+    await page.keyboard.press('Enter');
+    await page.keyboard.type('tree . -L 2');
+    await page.keyboard.press('Enter');
+
+    // Wait for command answer
+    await page.waitForTimeout(200);
+
+    expect(await page.screenshot()).toMatchSnapshot('terminal_layout.png');
+  });
+
+  test('Kernels and Terminals', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    // Open a terminal
+    await page.click('text=File');
+    await page.click('.lm-Menu ul[role="menu"] >> text=New');
+    await page.click('#jp-mainmenu-file-new >> text=Terminal');
+
+    await page.dblclick(
+      '[aria-label="File Browser Section"] >> text=notebooks'
+    );
+    await page.dblclick('text=Data.ipynb');
+    await page.dblclick('text=Julia.ipynb');
+
+    await page.click('[title="Running Terminals and Kernels"]');
+
+    await expect(
+      page.locator(
+        '.jp-RunningSessions-item.jp-mod-kernel >> text="Python 3 (ipykernel)"'
+      )
+    ).toHaveCount(2);
+
+    expect(
+      await page.screenshot({ clip: { y: 27, x: 0, width: 283, height: 400 } })
+    ).toMatchSnapshot('running_layout.png');
+  });
+
+  test('Command Palette', async ({ page }) => {
+    await page.goto();
+
+    await page.keyboard.press('Control+Shift+C');
+
+    expect(
+      await (await page.$('#modal-command-palette')).screenshot()
+    ).toMatchSnapshot('command_palette.png');
+  });
+
+  test('Keyboard Shortcuts Help', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+
+    await page.notebook.createNew();
+
+    await page.keyboard.press('Control+Shift+H');
+
+    expect(await page.locator('.jp-Notebook').screenshot()).toMatchSnapshot(
+      'shortcuts_help.png'
+    );
+  });
+
+  test('Open With', async ({ page }) => {
+    await page.goto();
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    await setSidebarWidth(page);
+
+    await page.click('text=README.md', {
+      button: 'right'
+    });
+    await page.click('text=Open With');
+    await page.hover('text=Markdown Preview');
+
+    expect(
+      await page.screenshot({ clip: { y: 0, x: 0, width: 700, height: 500 } })
+    ).toMatchSnapshot('file_formats_open_with.png');
+  });
+
+  test('HTML Display', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    await page.notebook.createNew();
+    await page.notebook.setCell(
+      0,
+      'code',
+      "from IPython.display import display, HTML\ndisplay(HTML('<h1>Hello World</h1>'))"
+    );
+
+    await page.notebook.run();
+
+    await page.click('text=File');
+    await page.click(
+      '.lm-Menu ul[role="menu"] >> text=New Console for Notebook'
+    );
+
+    await page.click('.jp-CodeConsole-input >> .cm-content');
+    await page.keyboard.type(
+      "from IPython.display import display, HTML\ndisplay(HTML('<h1>Hello World</h1>'))"
+    );
+    await page.keyboard.press('Shift+Enter');
+
+    expect(await page.screenshot()).toMatchSnapshot(
+      'file_formats_html_display.png'
+    );
+  });
+
+  test('Altair', async ({ page, tmpPath }) => {
+    await page.goto(`tree/${tmpPath}`);
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Hide file browser
+    await page.click('[title^="File Browser"]');
+
+    await page.notebook.createNew();
+    await page.notebook.setCell(
+      0,
+      'code',
+      "import altair as alt\n# load a simple dataset as a pandas DataFrame\nfrom vega_datasets import data\ncars = data.cars()\n\nalt.Chart(cars).mark_point().encode(x='Horsepower', y='Miles_per_Gallon', color='Origin').interactive()"
+    );
+
+    await page.notebook.run();
+
+    // Need to wait for altair to update the canvas
+    await page.waitForSelector('summary');
+
+    // The menu button '...' color of Altair is flaky increase threshold tolerance
+    expect(await page.screenshot()).toMatchSnapshot('file_formats_altair.png', {
+      threshold: 0.3
+    });
+  });
+});
+
+async function openOverview(page) {
+  await page.goto();
+  await page.addStyleTag({
+    content: `.jp-LabShell.jp-mod-devMode {
+      border-top: none;
+    }`
+  });
+
+  await setSidebarWidth(page);
+
+  // Open Data.ipynb
+  await page.dblclick('[aria-label="File Browser Section"] >> text=notebooks');
+  await page.dblclick('text=Data.ipynb');
+
+  // Back home
+  await page.click('.jp-BreadCrumbs-home svg');
+
+  // Open jupyterlab.md
+  await page.dblclick('[aria-label="File Browser Section"] >> text=narrative');
+  await page.click('text=jupyterlab.md', {
+    button: 'right'
+  });
+  await page.click('text=Open With');
+  await page.click('text=Markdown Preview');
+
+  // Back home
+  await page.click('.jp-BreadCrumbs-home svg');
+
+  // Open bar.vl.json
+  await page.dblclick('[aria-label="File Browser Section"] >> text=data');
+  await page.dblclick('text=bar.vl.json');
+  await page.dblclick(
+    'text=1024px-Hubble_Interacting_Galaxy_AM_0500-620_(2008-04-24).jpg'
+  );
+
+  // Move notebook panel
+  const notebookHandle = await page.$('div[role="main"] >> text=Data.ipynb');
+  await notebookHandle.click();
+  const notebookBBox = await notebookHandle.boundingBox();
+
+  await page.mouse.move(
+    notebookBBox.x + 0.5 * notebookBBox.width,
+    notebookBBox.y + 0.5 * notebookBBox.height
+  );
+  await page.mouse.down();
+  await page.mouse.move(notebookBBox.x + 0.5 * notebookBBox.width, 350);
+  await page.mouse.up();
+
+  // Move md panel
+  const mdHandle = await page.$('div[role="main"] >> text=jupyterlab.md');
+  await mdHandle.click();
+  const mdBBox = await mdHandle.boundingBox();
+  const panelHandle = await page.activity.getPanel();
+  const panelBBox = await panelHandle.boundingBox();
+
+  await page.mouse.move(
+    mdBBox.x + 0.5 * mdBBox.width,
+    mdBBox.y + 0.5 * mdBBox.height
+  );
+  await page.mouse.down();
+  await page.mouse.move(panelBBox.x + 0.5 * panelBBox.width, 200);
+  await page.mouse.up();
+}
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new file mode 100644
index 000000000000..436e095be6b2
Binary files /dev/null and b/galata/test/documentation/general.test.ts-snapshots/terminal-layout-documentation-linux.png differ
diff --git a/galata/test/documentation/internationalization.test.ts b/galata/test/documentation/internationalization.test.ts
new file mode 100644
index 000000000000..5b001631a745
--- /dev/null
+++ b/galata/test/documentation/internationalization.test.ts
@@ -0,0 +1,74 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import { setSidebarWidth } from './utils';
+
+test.use({
+  autoGoto: false,
+  mockState: galata.DEFAULT_DOCUMENTATION_STATE,
+  viewport: { height: 720, width: 1280 }
+});
+
+test.describe('Internationalization', () => {
+  test('Menu', async ({ page }) => {
+    await page.goto();
+
+    await setSidebarWidth(page);
+
+    await page.click('text=Settings');
+    await page.click('.lm-Menu ul[role="menu"] >> text=Language');
+
+    expect(
+      await page.screenshot({ clip: { y: 5, x: 250, width: 800, height: 600 } })
+    ).toMatchSnapshot('language_settings.png');
+  });
+
+  test('Confirm language', async ({ page }) => {
+    await page.goto();
+
+    await setSidebarWidth(page);
+
+    await page.click('text=Settings');
+    await page.click('.lm-Menu ul[role="menu"] >> text=Language');
+    await page.click('#jp-mainmenu-settings-language >> text=Chinese');
+
+    expect(
+      await page.screenshot({
+        clip: { y: 200, x: 350, width: 600, height: 300 }
+      })
+    ).toMatchSnapshot('language_change.png');
+  });
+
+  test('UI in Chinese', async ({ page }) => {
+    await galata.Mock.freezeContentLastModified(page);
+    await page.goto();
+
+    await page.click('text=Settings');
+    await page.click('.lm-Menu ul[role="menu"] >> text=Language');
+    await page.click('#jp-mainmenu-settings-language >> text=Chinese');
+
+    await Promise.all([
+      page.waitForNavigation(),
+      page.waitForSelector('#jupyterlab-splash'),
+      page.click('button:has-text("Change and reload")')
+    ]);
+
+    await page.waitForSelector('#jupyterlab-splash', {
+      state: 'detached'
+    });
+
+    await page.addStyleTag({
+      content: `.jp-LabShell.jp-mod-devMode {
+        border-top: none;
+      }`
+    });
+
+    // Wait for the launcher to be loaded
+    await page.waitForSelector('text=README.md');
+
+    await setSidebarWidth(page);
+
+    expect(await page.screenshot()).toMatchSnapshot('language_chinese.png');
+  });
+});
diff --git a/galata/test/documentation/internationalization.test.ts-snapshots/language-change-documentation-linux.png b/galata/test/documentation/internationalization.test.ts-snapshots/language-change-documentation-linux.png
new file mode 100644
index 000000000000..6921fc9768bd
Binary files /dev/null and b/galata/test/documentation/internationalization.test.ts-snapshots/language-change-documentation-linux.png differ
diff --git a/galata/test/documentation/internationalization.test.ts-snapshots/language-chinese-documentation-linux.png b/galata/test/documentation/internationalization.test.ts-snapshots/language-chinese-documentation-linux.png
new file mode 100644
index 000000000000..6fd310cd7649
Binary files /dev/null and b/galata/test/documentation/internationalization.test.ts-snapshots/language-chinese-documentation-linux.png differ
diff --git a/galata/test/documentation/internationalization.test.ts-snapshots/language-settings-documentation-linux.png b/galata/test/documentation/internationalization.test.ts-snapshots/language-settings-documentation-linux.png
new file mode 100644
index 000000000000..48ab68ab41fe
Binary files /dev/null and b/galata/test/documentation/internationalization.test.ts-snapshots/language-settings-documentation-linux.png differ
diff --git a/galata/test/documentation/plugins.test.ts b/galata/test/documentation/plugins.test.ts
new file mode 100644
index 000000000000..464cffa58f69
--- /dev/null
+++ b/galata/test/documentation/plugins.test.ts
@@ -0,0 +1,69 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { Token } from '@lumino/coreutils';
+import { expect } from '@playwright/test';
+import * as fs from 'fs-extra';
+
+test('All plugins and tokens must have a description', async ({
+  page
+}, testInfo) => {
+  const { plugins, tokens } = await page.evaluate(async () => {
+    // As the test is ran in the documentation environments, some plugins and tokens are not from core.
+    const IGNORED_PLUGINS = [
+      '@jupyterlab/geojson-extension:factory',
+      '@jupyterlab/galata-extension:helpers'
+    ];
+
+    const pluginIDs = window.jupyterapp.listPlugins();
+
+    const plugins: Record<string, string> = {};
+    const tokens: Record<string, string> = {};
+    pluginIDs.forEach(id => {
+      if (!id.startsWith('@jupyterlab/') || IGNORED_PLUGINS.includes(id)) {
+        return;
+      }
+
+      plugins[id] = window.jupyterapp.getPluginDescription(id);
+      const plugin = (
+        (window.jupyterapp as any)._plugins as Map<
+          string,
+          { provides: Token<any> | null }
+        >
+      ).get(id);
+      if (plugin?.provides) {
+        const token = plugin.provides;
+        tokens[token.name] = token.description;
+      }
+    });
+
+    return Promise.resolve({ plugins, tokens });
+  });
+
+  if (!(await fs.pathExists(testInfo.snapshotDir))) {
+    await fs.mkdir(testInfo.snapshotDir);
+  }
+  await fs.writeJSON(testInfo.snapshotPath('plugins.json'), plugins, {
+    encoding: 'utf-8',
+    spaces: 2
+  });
+
+  await fs.writeJSON(testInfo.snapshotPath('tokens.json'), tokens, {
+    encoding: 'utf-8',
+    spaces: 2
+  });
+
+  // All plugins must define a description
+  const missingPluginDescriptions = Object.entries(plugins).filter(
+    ([id, description]) => !description
+  );
+  // All tokens must define a description
+  const missingTokenDescriptions = Object.entries(tokens).filter(
+    ([id, description]) => !description
+  );
+
+  // Test against empty list to get directly the plugins/tokens missing description in test output
+  expect.soft(missingPluginDescriptions).toEqual([]);
+  expect(missingTokenDescriptions).toEqual([]);
+});
diff --git a/galata/test/documentation/plugins.test.ts-snapshots/plugins-documentation-linux.json b/galata/test/documentation/plugins.test.ts-snapshots/plugins-documentation-linux.json
new file mode 100644
index 000000000000..08b73cd05b89
--- /dev/null
+++ b/galata/test/documentation/plugins.test.ts-snapshots/plugins-documentation-linux.json
@@ -0,0 +1,163 @@
+{
+  "@jupyterlab/javascript-extension:factory": "Adds renderer for JavaScript content.",
+  "@jupyterlab/json-extension:factory": "Adds renderer for JSON content.",
+  "@jupyterlab/json-lines-extension:factory": "Adds renderer for JSONLines content.",
+  "@jupyterlab/pdf-extension:factory": "Adds renderer for PDF content.",
+  "@jupyterlab/vega5-extension:factory": "Provides a renderer for Vega 5 and Vega-Lite 3 to 5 content.",
+  "@jupyterlab/application:mimedocument": "Provides a mime document widget tracker.",
+  "@jupyterlab/application-extension:context-menu": "Populates the context menu.",
+  "@jupyterlab/application-extension:dirty": "Adds safeguard dialog when closing the browser tab with unsaved modifications.",
+  "@jupyterlab/application-extension:main": "Initializes the application and provides the URL tree path handler.",
+  "@jupyterlab/application-extension:commands": "Adds commands related to the shell.",
+  "@jupyterlab/application-extension:layout": "Provides the shell layout restorer.",
+  "@jupyterlab/application-extension:router": "Provides the URL router",
+  "@jupyterlab/application-extension:tree-resolver": "Provides the tree route resolver",
+  "@jupyterlab/application-extension:notfound": "Defines the behavior for not found URL (aka route).",
+  "@jupyterlab/application-extension:faviconbusy": "Handles the favicon depending on the application status.",
+  "@jupyterlab/application-extension:shell": "Provides the JupyterLab shell. It has an extended API compared to `app.shell`.",
+  "@jupyterlab/application-extension:status": "Provides the application status.",
+  "@jupyterlab/application-extension:info": "Provides the application information.",
+  "@jupyterlab/application-extension:mode-switch": "Adds the interface mode switch",
+  "@jupyterlab/application-extension:paths": "Provides the application paths.",
+  "@jupyterlab/application-extension:property-inspector": "Provides the property inspector.",
+  "@jupyterlab/application-extension:logo": "Sets the application logo.",
+  "@jupyterlab/application-extension:top-bar": "Adds a toolbar to the top area (next to the main menu bar).",
+  "@jupyterlab/apputils-extension:announcements": "Add the announcement feature. It will fetch news on the internet and check for application updates.",
+  "@jupyterlab/apputils-extension:kernel-status": "Provides the kernel status indicator model.",
+  "@jupyterlab/apputils-extension:notification": "Add the notification center and its status indicator.",
+  "@jupyterlab/apputils-extension:palette": "Provides the command palette.",
+  "@jupyterlab/apputils-extension:palette-restorer": "Restores the command palette.",
+  "@jupyterlab/apputils-extension:print": "Add the print capability",
+  "@jupyterlab/apputils-extension:resolver": "Provides the window name resolver.",
+  "@jupyterlab/apputils-extension:running-sessions-status": "Add the running sessions and terminals status bar item.",
+  "@jupyterlab/apputils-extension:sanitizer": "Provides the HTML sanitizer.",
+  "@jupyterlab/apputils-extension:settings": "Provides the setting registry.",
+  "@jupyterlab/apputils-extension:state": "Provides the application state. It is stored per workspaces.",
+  "@jupyterlab/apputils-extension:splash": "Provides the splash screen.",
+  "@jupyterlab/apputils-extension:sessionDialogs": "Provides the session context dialogs.",
+  "@jupyterlab/apputils-extension:themes": "Provides the theme manager.",
+  "@jupyterlab/apputils-extension:themes-palette-menu": "Adds theme commands to the menu and the command palette.",
+  "@jupyterlab/apputils-extension:toggle-header": "Adds a command to display the main area widget content header.",
+  "@jupyterlab/apputils-extension:toolbar-registry": "Provides toolbar items registry.",
+  "@jupyterlab/apputils-extension:utilityCommands": "Adds meta commands to run set of other commands.",
+  "@jupyterlab/apputils-extension:workspaces": "Add workspace file type and commands.",
+  "@jupyterlab/cell-toolbar-extension:plugin": "Add the cells toolbar.",
+  "@jupyterlab/celltags-extension:plugin": "Adds the cell tags editor.",
+  "@jupyterlab/codemirror-extension:languages": "Provides the CodeMirror languages registry.",
+  "@jupyterlab/codemirror-extension:themes": "Provides the CodeMirror theme registry",
+  "@jupyterlab/codemirror-extension:binding": "Register the CodeMirror extension factory binding the editor and the shared model.",
+  "@jupyterlab/codemirror-extension:extensions": "Provides the CodeMirror extension factory registry.",
+  "@jupyterlab/codemirror-extension:services": "Provides the service to instantiate CodeMirror editors.",
+  "@jupyterlab/codemirror-extension:line-col-status": "Provides the code editor cursor position model.",
+  "@jupyterlab/completer-extension:manager": "Provides the completion provider manager.",
+  "@jupyterlab/completer-extension:base-service": "Adds context and kernel completion providers.",
+  "@jupyterlab/console-extension:factory": "Provides the console widget content factory.",
+  "@jupyterlab/console-extension:tracker": "Provides the console widget tracker.",
+  "@jupyterlab/console-extension:foreign": "Add foreign handler of IOPub messages to the console.",
+  "@jupyterlab/console-extension:kernel-status": "Adds the console to the kernel status indicator model.",
+  "@jupyterlab/console-extension:cursor-position": "Adds the console to the code editor cursor position model.",
+  "@jupyterlab/console-extension:completer": "Adds completion to the console.",
+  "@jupyterlab/csvviewer-extension:csv": "Adds viewer for CSV file types",
+  "@jupyterlab/csvviewer-extension:tsv": "Adds viewer for TSV file types.",
+  "@jupyterlab/debugger-extension:service": "Provides the debugger service.",
+  "@jupyterlab/debugger-extension:consoles": "Add debugger capability to the consoles.",
+  "@jupyterlab/debugger-extension:files": "Adds debugger capabilities to files.",
+  "@jupyterlab/debugger-extension:notebooks": "Adds debugger capability to notebooks and provides the debugger notebook handler.",
+  "@jupyterlab/debugger-extension:variables": "Adds variables renderer and inspection in the debugger variable panel.",
+  "@jupyterlab/debugger-extension:sidebar": "Provides the debugger sidebar.",
+  "@jupyterlab/debugger-extension:main": "Initialize the debugger user interface.",
+  "@jupyterlab/debugger-extension:sources": "Provides the source feature for debugging",
+  "@jupyterlab/debugger-extension:config": "Provides the debugger configuration",
+  "@jupyterlab/docmanager-extension:manager": "Provides the document manager.",
+  "@jupyterlab/docmanager-extension:plugin": "Adds commands and settings to the document manager.",
+  "@jupyterlab/docmanager-extension:contexts": "Adds the handling of opened documents dirty state.",
+  "@jupyterlab/docmanager-extension:path-status": "Adds a file path indicator in the status bar.",
+  "@jupyterlab/docmanager-extension:saving-status": "Adds a saving status indicator.",
+  "@jupyterlab/docmanager-extension:download": "Adds command to download files.",
+  "@jupyterlab/docmanager-extension:open-browser-tab": "Adds command to open a browser tab.",
+  "@jupyterlab/docmanager-extension:opener": "Provides the widget opener.",
+  "@jupyterlab/documentsearch-extension:plugin": "Provides the document search registry.",
+  "@jupyterlab/documentsearch-extension:labShellWidgetListener": "Active search on valid document",
+  "@jupyterlab/extensionmanager-extension:plugin": "Adds the extension manager plugin.",
+  "@jupyterlab/filebrowser-extension:factory": "Provides the file browser factory.",
+  "@jupyterlab/filebrowser-extension:default-file-browser": "Provides the default file browser",
+  "@jupyterlab/filebrowser-extension:browser": "Set up the default file browser (commands, settings,...).",
+  "@jupyterlab/filebrowser-extension:share-file": "Adds the \"Copy Shareable Link\" command; useful for JupyterHub deployment for example.",
+  "@jupyterlab/filebrowser-extension:file-upload-status": "Adds a file upload status widget.",
+  "@jupyterlab/filebrowser-extension:download": "Adds the download file commands. Disabling this plugin will NOT disable downloading files from the server, if the user enters the appropriate download URLs.",
+  "@jupyterlab/filebrowser-extension:widget": "Adds the file browser to the application shell.",
+  "@jupyterlab/filebrowser-extension:open-with": "Adds the open-with feature allowing an user to pick the non-preferred document viewer.",
+  "@jupyterlab/filebrowser-extension:open-browser-tab": "Adds the open-in-new-browser-tab features.",
+  "@jupyterlab/filebrowser-extension:open-url": "Adds the feature \"Open files from remote URLs\".",
+  "@jupyterlab/fileeditor-extension:plugin": "Provides the file editor widget tracker.",
+  "@jupyterlab/fileeditor-extension:cursor-position": "Adds a file editor cursor position status widget.",
+  "@jupyterlab/fileeditor-extension:completer": "Adds the completer capability to the file editor.",
+  "@jupyterlab/fileeditor-extension:language-server": "Adds Language Server capability to the file editor.",
+  "@jupyterlab/fileeditor-extension:search": "Adds search capability to the file editor.",
+  "@jupyterlab/fileeditor-extension:editor-syntax-status": "Adds a file editor syntax status widget.",
+  "@jupyterlab/fileeditor-extension:tab-space-status": "Adds a file editor indentation status widget.",
+  "@jupyterlab/help-extension:about": "Adds a \"About\" dialog feature.",
+  "@jupyterlab/help-extension:jupyter-forum": "Adds command to open the Jupyter Forum website.",
+  "@jupyterlab/help-extension:open": "Add command to open websites as panel or browser tab.",
+  "@jupyterlab/help-extension:resources": "Adds menu entries to Jupyter reference documentation websites.",
+  "@jupyterlab/help-extension:licenses": "Adds licenses used report tools.",
+  "@jupyterlab/htmlviewer-extension:plugin": "Adds HTML file viewer and provides its tracker.",
+  "@jupyterlab/hub-extension:plugin": "Registers commands related to the hub server",
+  "@jupyterlab/hub-extension:menu": "Adds hub related commands to the menu.",
+  "@jupyterlab/hub-extension:connectionlost": "Provides a service to be notified when the connection to the hub server is lost.",
+  "@jupyterlab/imageviewer-extension:plugin": "Adds image viewer and provide its tracker.",
+  "@jupyterlab/inspector-extension:inspector": "Provides the code introspection widget.",
+  "@jupyterlab/inspector-extension:consoles": "Adds code introspection support to consoles.",
+  "@jupyterlab/inspector-extension:notebooks": "Adds code introspection to notebooks.",
+  "@jupyterlab/launcher-extension:plugin": "Provides the launcher tab service.",
+  "@jupyterlab/logconsole-extension:plugin": "Provides the logger registry.",
+  "@jupyterlab/lsp-extension:plugin": "Provides the language server connection manager.",
+  "@jupyterlab/lsp-extension:feature": "Provides the language server feature manager.",
+  "@jupyterlab/lsp-extension:settings": "Provides the language server settings.",
+  "@jupyterlab/lsp:ILSPCodeExtractorsManager": "Provides the code extractor manager.",
+  "@jupyterlab/mainmenu-extension:plugin": "Adds and provides the application main menu.",
+  "@jupyterlab/markdownviewer-extension:plugin": "Adds markdown file viewer and provides its tracker.",
+  "@jupyterlab/markedparser-extension:plugin": "Provides the Markdown parser.",
+  "@jupyterlab/mathjax-extension:plugin": "Provides the LaTeX mathematical expression interpreter.",
+  "@jupyterlab/metadataform-extension:metadataforms": "Provides the metadata form registry.",
+  "@jupyterlab/notebook-extension:factory": "Provides the notebook cell factory.",
+  "@jupyterlab/notebook-extension:tracker": "Provides the notebook widget tracker.",
+  "@jupyterlab/notebook-extension:execution-indicator": "Adds a notebook execution status widget.",
+  "@jupyterlab/notebook-extension:export": "Adds the export notebook commands.",
+  "@jupyterlab/notebook-extension:tools": "Provides the notebook tools.",
+  "@jupyterlab/notebook-extension:mode-status": "Adds a notebook mode status widget.",
+  "@jupyterlab/notebook-extension:trust-status": "Adds the notebook trusted status widget.",
+  "@jupyterlab/notebook-extension:widget-factory": "Provides the notebook widget factory.",
+  "@jupyterlab/notebook-extension:log-output": "Adds cell outputs log to the application logger.",
+  "@jupyterlab/notebook-extension:cloned-outputs": "Adds the clone output feature.",
+  "@jupyterlab/notebook-extension:code-console": "Adds the notebook code consoles features.",
+  "@jupyterlab/notebook-extension:copy-output": "Adds the copy cell outputs feature.",
+  "@jupyterlab/notebook-extension:kernel-status": "Adds the notebook kernel status.",
+  "@jupyterlab/notebook-extension:cursor-position": "Adds the notebook cursor position status.",
+  "@jupyterlab/notebook-extension:completer": "Adds the code completion capability to notebooks.",
+  "@jupyterlab/notebook-extension:search": "Adds search capability to notebooks.",
+  "@jupyterlab/notebook-extension:toc": "Adds table of content capability to the notebooks",
+  "@jupyterlab/notebook-extension:language-server": "Adds language server capability to the notebooks.",
+  "@jupyterlab/notebook-extension:update-raw-mimetype": "Adds metadata form editor for raw cell mimetype.",
+  "@jupyterlab/notebook-extension:metadata-editor": "Adds metadata form for full metadata editor.",
+  "@jupyterlab/notebook-extension:active-cell-tool": "Adds active cell field in the metadata editor tab.",
+  "@jupyterlab/rendermime-extension:plugin": "Provides the render mime registry.",
+  "@jupyterlab/running-extension:plugin": "Provides the running session managers.",
+  "@jupyterlab/settingeditor-extension:form-ui": "Adds the interactive settings editor and provides its tracker.",
+  "@jupyterlab/settingeditor-extension:plugin": "Adds the JSON settings editor and provides its tracker.",
+  "@jupyterlab/shortcuts-extension:shortcuts": "Adds the keyboard shortcuts editor.",
+  "@jupyterlab/statusbar-extension:plugin": "Provides the application status bar.",
+  "@jupyterlab/terminal-extension:plugin": "Adds terminal and provides its tracker.",
+  "@jupyterlab/theme-dark-extension:plugin": "Adds a dark theme.",
+  "@jupyterlab/theme-light-extension:plugin": "Adds a light theme.",
+  "@jupyterlab/toc-extension:registry": "Provides the table of contents registry.",
+  "@jupyterlab/toc-extension:tracker": "Adds the table of content widget and provides its tracker.",
+  "@jupyterlab/tooltip-extension:manager": "Provides the tooltip manager.",
+  "@jupyterlab/tooltip-extension:consoles": "Adds the tooltip capability to consoles.",
+  "@jupyterlab/tooltip-extension:notebooks": "Adds the tooltip capability to notebooks.",
+  "@jupyterlab/tooltip-extension:files": "Adds the tooltip capability to file editors.",
+  "@jupyterlab/translation:translator": "Provides the application translation object.",
+  "@jupyterlab/translation-extension:plugin": "Adds translation commands and settings.",
+  "@jupyterlab/ui-components-extension:labicon-manager": "Provides the icon manager.",
+  "@jupyterlab/ui-components-extension:form-renderer-registry": "Provides the settings form renderer registry."
+}
diff --git a/galata/test/documentation/plugins.test.ts-snapshots/tokens-documentation-linux.json b/galata/test/documentation/plugins.test.ts-snapshots/tokens-documentation-linux.json
new file mode 100644
index 000000000000..3c34091d73fe
--- /dev/null
+++ b/galata/test/documentation/plugins.test.ts-snapshots/tokens-documentation-linux.json
@@ -0,0 +1,72 @@
+{
+  "@jupyterlab/application:IMimeDocumentTracker": "A widget tracker for documents rendered using a mime renderer extension. Use this if you want to list and interact with documents rendered by such extensions.",
+  "@jupyterlab/application:ITreePathUpdater": "A service to update the tree path.",
+  "@jupyterlab/application:ILayoutRestorer": "A service providing application layout restoration functionality. Use this to have your activities restored across page loads.",
+  "@jupyterlab/application:IRouter": "The URL router used by the application. Use this to add custom URL-routing for your extension (e.g., to invoke a command if the user navigates to a sub-path).",
+  "@jupyterlab/application:ITreeResolver": "A service to resolve the tree path.",
+  "@jupyterlab/application:ILabShell": "A service for interacting with the JupyterLab shell. The top-level ``application`` object also has a reference to the shell, but it has a restricted interface in order to be agnostic to different shell implementations on the application. Use this to get more detailed information about currently active widgets and layout state.",
+  "@jupyterlab/application:ILabStatus": "A service for interacting with the application busy/dirty\n  status. Use this if you want to set the application \"busy\" favicon, or to set\n  the application \"dirty\" status, which asks the user for confirmation before leaving the application page.",
+  "@jupyterlab/application:IInfo": "A service providing metadata about the current application, including disabled extensions and whether dev mode is enabled.",
+  "@jupyterlab/application:IPaths": "A service providing information about various\n  URLs and server paths for the current application. Use this service if you want to\n  assemble URLs to use the JupyterLab REST API.",
+  "@jupyterlab/property-inspector:IPropertyInspectorProvider": "A service to registry new widget in the property inspector side panel.",
+  "@jupyterlab/apputils:IKernelStatusModel": "A service to register kernel session provider to the kernel status indicator.",
+  "@jupyterlab/apputils:ICommandPalette": "A service for the application command palette\n  in the left panel. Use this to add commands to the palette.",
+  "@jupyterlab/apputils:IWindowResolver": "A service for a window resolver for the\n  application. JupyterLab workspaces are given a name, which are determined using\n  the window resolver. Require this if you want to use the name of the current workspace.",
+  "@jupyterlab/apputils:ISanitizer": "A service for sanitizing HTML strings.",
+  "@jupyterlab/coreutils:ISettingRegistry": "A service for the JupyterLab settings system.\n  Use this if you want to store settings for your application.\n  See \"schemaDir\" for more information.",
+  "@jupyterlab/coreutils:IStateDB": "A service for the JupyterLab state database.\n  Use this if you want to store data that will persist across page loads.\n  See \"state database\" for more information.",
+  "@jupyterlab/apputils:ISplashScreen": "A service for the splash screen for the application.\n  Use this if you want to show the splash screen for your own purposes.",
+  "@jupyterlab/apputils:ISessionContextDialogs": "A service for handling the session dialogs.",
+  "@jupyterlab/apputils:IThemeManager": "A service for the theme manager for the application. This is used primarily in theme extensions to register new themes.",
+  "@jupyterlab/apputils:IToolbarWidgetRegistry": "A registry for toolbar widgets. Require this\n  if you want to build the toolbar dynamically from a data definition (stored in settings for example).",
+  "@jupyterlab/codemirror:IEditorLanguageRegistry": "A registry for CodeMirror languages.",
+  "@jupyterlab/codemirror:IEditorThemeRegistry": "A registry for CodeMirror theme.",
+  "@jupyterlab/codemirror:IEditorExtensionRegistry": "A registry for CodeMirror extension factories.",
+  "@jupyterlab/codeeditor:IEditorServices": "A service for the text editor provider\n  for the application. Use this to create new text editors and host them in your\n  UI elements.",
+  "@jupyterlab/codeeditor:IPositionModel": "A service to handle an code editor cursor position.",
+  "@jupyterlab/completer:ICompletionProviderManager": "A service for the completion providers management.",
+  "@jupyterlab/console:IContentFactory": "A factory object that creates new code consoles. Use this if you want to create and host code consoles in your own UI elements.",
+  "@jupyterlab/console:IConsoleTracker": "A widget tracker for code consoles.\n  Use this if you want to be able to iterate over and interact with code consoles\n  created by the application.",
+  "@jupyterlab/debugger:IDebugger": "A debugger user interface.",
+  "@jupyterlab/debugger:IDebuggerHandler": "A service for handling notebook debugger.",
+  "@jupyterlab/debugger:IDebuggerSidebar": "A service for the debugger sidebar.",
+  "@jupyterlab/debugger:IDebuggerSources": "A service to display sources in debug mode.",
+  "@jupyterlab/debugger:IDebuggerConfig": "A service to handle the debugger configuration.",
+  "@jupyterlab/docmanager:IDocumentManager": "A service for the manager for all\n  documents used by the application. Use this if you want to open and close documents,\n  create and delete files, and otherwise interact with the file system.",
+  "@jupyterlab/docmanager:IDocumentWidgetOpener": "A service to open a widget.",
+  "@jupyterlab/documentsearch:ISearchProviderRegistry": "A service for a registry of search\n  providers for the application. Plugins can register their UI elements with this registry\n  to provide find/replace support.",
+  "@jupyterlab/filebrowser:IFileBrowserFactory": "A factory object that creates file browsers.\n  Use this if you want to create your own file browser (e.g., for a custom storage backend),\n  or to interact with other file browsers that have been created by extensions.",
+  "@jupyterlab/filebrowser:IDefaultFileBrowser": "A service for the default file browser.",
+  "@jupyterlab/filebrowser:IFileBrowserCommands": "A token to ensure file browser commands are loaded.",
+  "@jupyterlab/fileeditor:IEditorTracker": "A widget tracker for file editors.\n  Use this if you want to be able to iterate over and interact with file editors\n  created by the application.",
+  "@jupyterlab/htmlviewer:IHTMLViewerTracker": "A widget tracker for rendered HTML documents.\n  Use this if you want to be able to iterate over and interact with HTML documents\n  viewed by the application.",
+  "@jupyterlab/application:IConnectionLost": "A service for invoking the dialog shown\n  when JupyterLab has lost its connection to the server. Use this if, for some reason,\n  you want to bring up the \"connection lost\" dialog under new circumstances.",
+  "@jupyterlab/imageviewer:IImageTracker": "A widget tracker for images.\n  Use this if you want to be able to iterate over and interact with images\n  viewed by the application.",
+  "@jupyterlab/inspector:IInspector": "A service for adding contextual help to widgets (visible using \"Show Contextual Help\" from the Help menu).\n  Use this to hook into the contextual help system in your extension.",
+  "@jupyterlab/launcher:ILauncher": "A service for the application activity launcher.\n  Use this to add your extension activities to the launcher panel.",
+  "@jupyterlab/logconsole:ILoggerRegistry": "A service providing a logger infrastructure.",
+  "@jupyterlab/lsp:ILSPDocumentConnectionManager": "Provides the virtual documents and language server connections service.",
+  "@jupyterlab/lsp:ILSPFeatureManager": "Provides the language server feature manager. This token is required to register new client capabilities.",
+  "@jupyterlab/lsp:ILSPCodeExtractorsManager": "Provides the code extractor manager. This token is required in your extension to register code extractor allowing the creation of multiple virtual document from an opened document.",
+  "@jupyterlab/mainmenu:IMainMenu": "A service for the main menu bar for the application.\n  Use this if you want to add your own menu items or provide implementations for standardized menu items for specific activities.",
+  "@jupyterlab/markdownviewer:IMarkdownViewerTracker": "A widget tracker for markdown\n  document viewers. Use this if you want to iterate over and interact with rendered markdown documents.",
+  "@jupyterlab/rendermime:IMarkdownParser": "A service for rendering markdown syntax as HTML content.",
+  "@jupyterlab/rendermime:ILatexTypesetter": "A service for the LaTeX typesetter for the application. Use this if you want to typeset math in your extension.",
+  "@jupyterlab/metadataform:IMetadataFormProvider": "A service to register new metadata editor widgets.",
+  "@jupyterlab/notebook:IContentFactory": "A factory object that creates new notebooks.\n    Use this if you want to create and host notebooks in your own UI elements.",
+  "@jupyterlab/notebook:INotebookTracker": "A widget tracker for notebooks.\n  Use this if you want to be able to iterate over and interact with notebooks\n  created by the application.",
+  "@jupyterlab/notebook:INotebookTools": "A service for the \"Notebook Tools\" panel in the\n  right sidebar. Use this to add your own functionality to the panel.",
+  "@jupyterlab/notebook:INotebookWidgetFactory": "A service to create the notebook viewer.",
+  "@jupyterlab/rendermime:IRenderMimeRegistry": "A service for the rendermime registry for the application. Use this to create renderers for various mime-types in your extension. Many times it will be easier to create a \"mime renderer extension\" rather than using this service directly.",
+  "@jupyterlab/running:IRunningSessionManagers": "A service to add running session managers.",
+  "@jupyterlab/settingeditor:ISettingEditorTracker": "A widget tracker for the interactive setting editor.\n  Use this if you want to be able to iterate over and interact with setting editors\n  created by the application.",
+  "@jupyterlab/settingeditor:IJSONSettingEditorTracker": "A widget tracker for the JSON setting editor.\n  Use this if you want to be able to iterate over and interact with setting editors\n  created by the application.",
+  "@jupyterlab/statusbar:IStatusBar": "A service for the status bar on the application. Use this if you want to add new status bar items.",
+  "@jupyterlab/terminal:ITerminalTracker": "A widget tracker for terminals.\n  Use this if you want to be able to iterate over and interact with terminals\n  created by the application.",
+  "@jupyterlab/toc:ITableOfContentsRegistry": "A service to register table of content factory.",
+  "@jupyterlab/toc:ITableOfContentsTracker": "A widget tracker for table of contents.",
+  "@jupyterlab/tooltip:ITooltipManager": "A service for the tooltip manager for the application. Use this to allow your extension to invoke a tooltip.",
+  "@jupyterlab/translation:ITranslator": "A service to translate strings.",
+  "@jupyterlab/ui-components:ILabIconManager": "A service to register and request icons.",
+  "@jupyterlab/ui-components:IFormRendererRegistry": "A service for settings form renderer registration."
+}
diff --git a/galata/test/documentation/screenshots/debugger-breakpoints.png b/galata/test/documentation/screenshots/debugger-breakpoints.png
new file mode 100644
index 000000000000..15ac1f1ad645
Binary files /dev/null and b/galata/test/documentation/screenshots/debugger-breakpoints.png differ
diff --git a/galata/test/documentation/screenshots/debugger-callstack.png b/galata/test/documentation/screenshots/debugger-callstack.png
new file mode 100644
index 000000000000..7512287e1a9f
Binary files /dev/null and b/galata/test/documentation/screenshots/debugger-callstack.png differ
diff --git a/galata/test/documentation/screenshots/debugger-source.png b/galata/test/documentation/screenshots/debugger-source.png
new file mode 100644
index 000000000000..b8169e512098
Binary files /dev/null and b/galata/test/documentation/screenshots/debugger-source.png differ
diff --git a/galata/test/documentation/utils.ts b/galata/test/documentation/utils.ts
new file mode 100644
index 000000000000..75aeed354375
--- /dev/null
+++ b/galata/test/documentation/utils.ts
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ElementHandle, Page } from '@playwright/test';
+import fs from 'fs';
+import path from 'path';
+
+/**
+ * Generate a SVG arrow to inject in a HTML document.
+ *
+ * @param position Absolute position
+ * @param rotation Rotation in degree
+ * @returns The svg to inject in the page
+ */
+export function generateArrow(
+  position: { x: number; y: number },
+  rotation: number = 0
+): string {
+  return `<svg style="position: absolute;top: ${position.y}px;left: ${position.x}px;transform: rotate(${rotation}deg);z-index: 100000" width="28.579" height="162.02" version="1.1" viewBox="0 0 28.579 62.619" xmlns="http://www.w3.org/2000/svg">
+  <defs>
+   <marker id="a" overflow="visible" orient="auto">
+    <path transform="matrix(-1.1,0,0,-1.1,-1.1,0)" d="m8.7186 4.0337-10.926-4.0177 10.926-4.0177c-1.7455 2.3721-1.7354 5.6175-6e-7 8.0354z" fill="#ff0000" fill-rule="evenodd" stroke="#ff0000" stroke-linejoin="round" stroke-width=".625"/>
+   </marker>
+  </defs>
+  <g transform="translate(-131.33 -99.265)">
+   <path d="m145.67 211.28v-157" fill="none" marker-end="url(#a)" stroke="#ff0000" stroke-width="3"/>
+  </g>
+ </svg>`;
+}
+
+/**
+ * Generate a SVG mouse pointer to inject in a HTML document.
+ *
+ * @param position Absolute position
+ * @returns The svg to inject in the page
+ */
+export function positionMouse(position: { x: number; y: number }): string {
+  // The cursor is CC-0 1.0 from https://github.com/sevmeyer/mocu-xcursor
+  return `<svg style="pointer-events: none; position: absolute;top: ${position.y}px;left: ${position.x}px;z-index: 100000" width="40" height="40" version="1.1" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+  <defs>
+    <path id="c" class="left(-1,22)" d="m1 1v13.75l3.94-1.63 1.72 4.16 1.84-0.78-1.71-4.15 3.94-1.63z"/>
+  </defs>
+  <use xlink:href="#c" style="fill:#0a0b0c;stroke:#0a0b0c;stroke-width:2;stroke-linejoin:round;opacity:.1" x="1" y="1"/>
+  <use xlink:href="#c" style="fill:#1a1b1c;stroke:#1a1b1c;stroke-width:2;stroke-linejoin:round"/>
+  <use xlink:href="#c" style="fill:#fafbfc"/>
+  <circle id="hot" class="left(-1,22)" cx="1" cy="1" r="1" style="fill:#f00;opacity:.5"/>
+</svg>`;
+}
+
+/**
+ * Position of an injected sprint in a DOM element.
+ */
+export interface IPositionInElement {
+  /**
+   * X-coordinate multiplier for the element's width.
+   */
+  top?: number;
+  /**
+   * Y-coordinate multiplier for the element's height.
+   */
+  left?: number;
+  /**
+   * Offset added to x-coordinate after calculating position with multipliers.
+   */
+  offsetLeft?: number;
+  /**
+   * Offset added to y-coordinate after calculating position with multipliers.
+   */
+  offsetTop?: number;
+}
+
+/**
+ * Generate a SVG mouse pointer to inject in a HTML document over a DOM element.
+ *
+ * @param element A playwright handle for the target DOM element
+ * @param position A position within the target element (default: bottom right quarter).
+ * @returns The svg to inject in the page
+ */
+export async function positionMouseOver(
+  element: ElementHandle,
+  position: IPositionInElement = {}
+): Promise<string> {
+  const top = position.top ?? 0.75;
+  const left = position.left ?? 0.75;
+  const offsetTop = position.offsetTop ?? 0;
+  const offsetLeft = position.offsetLeft ?? 0;
+  const bBox = await element.boundingBox();
+  return positionMouse({
+    x: bBox.x + bBox.width * left + offsetLeft,
+    y: bBox.y + bBox.height * top + offsetTop
+  });
+}
+
+/**
+ * Set the sidebar width
+ *
+ * @param page Page object
+ * @param width Sidebar width in pixels
+ * @param side Which sidebar to set: 'left' or 'right'
+ */
+export async function setSidebarWidth(
+  page: Page,
+  width = 251,
+  side: 'left' | 'right' = 'left'
+): Promise<void> {
+  const handles = page.locator(
+    '#jp-main-split-panel > .lm-SplitPanel-handle:not(.lm-mod-hidden)'
+  );
+  const splitHandle =
+    side === 'left'
+      ? await handles.first().elementHandle()
+      : await handles.last().elementHandle();
+  const handleBBox = await splitHandle.boundingBox();
+
+  await page.mouse.move(
+    handleBBox.x + 0.5 * handleBBox.width,
+    handleBBox.y + 0.5 * handleBBox.height
+  );
+  await page.mouse.down();
+  await page.mouse.move(
+    side === 'left' ? 33 + width : page.viewportSize().width - 33 - width,
+    handleBBox.y + 0.5 * handleBBox.height
+  );
+  await page.mouse.up();
+}
+
+export async function stubGitHubUserIcons(page: Page): Promise<void> {
+  // stub out github user icons
+  // only first and last icon for now
+  // logic in @jupyterlab/extensionmanager/src/models::ListEntry#translateSearchResult
+  await page.route('https://github.com/*.png*', async (route, request) => {
+    return route.fulfill({
+      status: 200,
+      contentType: 'image/png',
+      body: fs.readFileSync(path.resolve(__dirname, './data/jupyter.png'))
+    });
+  });
+}
diff --git a/galata/test/galata/benchmarkReporter.spec.ts b/galata/test/galata/benchmarkReporter.spec.ts
index 0876948ca088..2f4b46e877f6 100644
--- a/galata/test/galata/benchmarkReporter.spec.ts
+++ b/galata/test/galata/benchmarkReporter.spec.ts
@@ -117,3 +117,15 @@ test.describe('BenchmarkReporter', () => {
     expect(figureData).toMatchSnapshot('customized_test.svg');
   });
 });
+
+test.describe('benchmark.distributionChange', () => {
+  test('matches result from paper', () => {
+    const change = benchmark.distributionChange(
+      [7.75, 12.25, 11.5],
+      [8.75, 6.25, 4.5]
+    );
+
+    expect(change.mean).toBeCloseTo(68.3 / 74.5);
+    expect(change.confidenceInterval).toBeCloseTo(60.2 / 74.5);
+  });
+});
diff --git a/galata/test/galata/benchmarkReporter.spec.ts-snapshots/customized-test-galata-linux.svg b/galata/test/galata/benchmarkReporter.spec.ts-snapshots/customized-test-galata-linux.svg
index eff517054b61..26c84ae858b0 100644
--- a/galata/test/galata/benchmarkReporter.spec.ts-snapshots/customized-test-galata-linux.svg
+++ b/galata/test/galata/benchmarkReporter.spec.ts-snapshots/customized-test-galata-linux.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" class="marks" width="220" height="47" viewBox="0 0 220 47"><rect width="220" height="47" fill="white"/><g fill="none" stroke-miterlimit="10" transform="translate(100,22)"><g class="mark-group role-frame root" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h20v20h-20Z"/><g><g class="mark-rect role-mark marks" role="graphics-symbol" aria-roledescription="rect mark container"><path d="M0,0h20v20h-20Z" fill="#4c78a8"/></g><g class="mark-group role-title"><g transform="translate(10,-17)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'Duration of common actions'" pointer-events="none"><text text-anchor="middle" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">Duration of common actions</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g></g></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" class="marks" width="218" height="47" viewBox="0 0 218 47"><rect width="218" height="47" fill="white"/><g fill="none" stroke-miterlimit="10" transform="translate(99,22)"><g class="mark-group role-frame root" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h20v20h-20Z"/><g><g class="mark-rect role-mark marks" role="graphics-symbol" aria-roledescription="rect mark container"><path d="M0,0h20v20h-20Z" fill="#4c78a8"/></g><g class="mark-group role-title"><g transform="translate(10,-17)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'Duration of common actions'" pointer-events="none"><text text-anchor="middle" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">Duration of common actions</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g></g></svg>
\ No newline at end of file
diff --git a/galata/test/galata/benchmarkReporter.spec.ts-snapshots/test-galata-linux.svg b/galata/test/galata/benchmarkReporter.spec.ts-snapshots/test-galata-linux.svg
index 981a66f4907f..878638393276 100644
--- a/galata/test/galata/benchmarkReporter.spec.ts-snapshots/test-galata-linux.svg
+++ b/galata/test/galata/benchmarkReporter.spec.ts-snapshots/test-galata-linux.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" class="marks" width="279" height="186" viewBox="0 0 279 186"><rect width="279" height="186" fill="white"/><g fill="none" stroke-miterlimit="10" transform="translate(73,108)"><g class="mark-group role-frame root" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-scope concat_0_group" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-scope concat_0_concat_0_group" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-column-title column-title" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(100,-31)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-title"><g transform="translate(0,-21)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'browser'" pointer-events="none"><text text-anchor="middle" transform="translate(0,9)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">browser</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-row-header concat_0_concat_0_row_header" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(-1,0)"><path class="background" aria-hidden="true" d="M0,0h0v40h0Z"/><g><g class="mark-group role-axis" role="graphics-symbol" aria-roledescription="axis" aria-label="Y-axis titled 'reference' for a discrete scale with 2 values: actual, expected"><g transform="translate(0.5,0.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-tick" pointer-events="none"><line transform="translate(0,10)" x2="-5" y2="0" stroke="#888" stroke-width="1" opacity="1"/><line transform="translate(0,30)" x2="-5" y2="0" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-label" pointer-events="none"><text text-anchor="end" transform="translate(-7,12.5)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">actual</text><text text-anchor="end" transform="translate(-7,32.5)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">expected</text></g><g class="mark-rule role-axis-domain" pointer-events="none"><line transform="translate(0,0)" x2="0" y2="40" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-title" pointer-events="none"><text text-anchor="middle" transform="translate(-56,20) rotate(-90) translate(0,-2)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">reference</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-column-header concat_0_concat_0_column_header" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,-1)"><path class="background" aria-hidden="true" d="M0,0h200v0h-200Z"/><g><g class="mark-group role-title"><g transform="translate(100,-20)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'chromium'" pointer-events="none"><text text-anchor="middle" transform="translate(0,8)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">chromium</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-column-footer concat_0_concat_0_column_footer" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,41)"><path class="background" aria-hidden="true" d="M0,0h200v0h-200Z"/><g><g class="mark-group role-axis" role="graphics-symbol" aria-roledescription="axis" aria-label="X-axis titled 'Time (ms)' for a linear scale with values from 18,204 to 18,204"><g transform="translate(0.5,0.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-tick" pointer-events="none"><line transform="translate(100,0)" x2="0" y2="5" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-label" pointer-events="none"><text text-anchor="middle" transform="translate(100,15)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">18,204</text></g><g class="mark-rule role-axis-domain" pointer-events="none"><line transform="translate(0,0)" x2="200" y2="0" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-title" pointer-events="none"><text text-anchor="middle" transform="translate(100,30)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">Time (ms)</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-scope concat_0_concat_0_cell" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0.5,0.5h200v40h-200Z" stroke="#ddd"/><g><g class="mark-group role-axis" aria-hidden="true"><g transform="translate(0.5,40.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-grid" pointer-events="none"><line transform="translate(100,0)" x2="0" y2="-40" stroke="#ddd" stroke-width="1" opacity="1"/></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g><g class="mark-rule role-mark concat_0_concat_0_child_layer_0_marks" aria-hidden="true"><line transform="translate(100,10)" x2="0" y2="0" stroke="black"/><line transform="translate(100,30)" x2="0" y2="0" stroke="black"/></g><g class="mark-rule role-mark concat_0_concat_0_child_layer_1_marks" aria-hidden="true"><line transform="translate(100,10)" x2="0" y2="0" stroke="black"/><line transform="translate(100,30)" x2="0" y2="0" stroke="black"/></g><g class="mark-rect role-mark concat_0_concat_0_child_layer_2_marks" role="graphics-object" aria-roledescription="rect mark container"><path aria-label="Time (ms): 18204; upper_box_time: 18204; reference: actual; Max of Time (ms): 18204; Q3 of Time (ms): 18204; Median of Time (ms): 18204; Q1 of Time (ms): 18204; Min of Time (ms): 18204" role="graphics-symbol" aria-roledescription="box" d="M100,3h0v14h0Z" fill="#4c78a8"/><path aria-label="Time (ms): 18204; upper_box_time: 18204; reference: expected; Max of Time (ms): 18204; Q3 of Time (ms): 18204; Median of Time (ms): 18204; Q1 of Time (ms): 18204; Min of Time (ms): 18204" role="graphics-symbol" aria-roledescription="box" d="M100,23h0v14h0Z" fill="#4c78a8"/></g><g class="mark-rect role-mark concat_0_concat_0_child_layer_3_marks" aria-hidden="true"><path d="M99.5,3h1v14h-1Z" fill="white" opacity="0.7"/><path d="M99.5,23h1v14h-1Z" fill="white" opacity="0.7"/></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-68,-69)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'open'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">open</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-68,-86)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'large_code_notebook'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">large_code_notebook</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-68,-103)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'Duration of common actions'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">Duration of common actions</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g></g></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" class="marks" width="281" height="186" viewBox="0 0 281 186"><rect width="281" height="186" fill="white"/><g fill="none" stroke-miterlimit="10" transform="translate(75,108)"><g class="mark-group role-frame root" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-scope concat_0_group" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-scope concat_0_concat_0_group" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-column-title column-title" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(100,-31)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z"/><g><g class="mark-group role-title"><g transform="translate(0,-21)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'browser'" pointer-events="none"><text text-anchor="middle" transform="translate(0,9)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">browser</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-row-header concat_0_concat_0_row_header" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(-1,0)"><path class="background" aria-hidden="true" d="M0,0h0v40h0Z"/><g><g class="mark-group role-axis" role="graphics-symbol" aria-roledescription="axis" aria-label="Y-axis titled 'reference' for a discrete scale with 2 values: actual, expected"><g transform="translate(0.5,0.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-tick" pointer-events="none"><line transform="translate(0,10)" x2="-5" y2="0" stroke="#888" stroke-width="1" opacity="1"/><line transform="translate(0,30)" x2="-5" y2="0" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-label" pointer-events="none"><text text-anchor="end" transform="translate(-7,12.5)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">actual</text><text text-anchor="end" transform="translate(-7,32.5)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">expected</text></g><g class="mark-rule role-axis-domain" pointer-events="none"><line transform="translate(0,0)" x2="0" y2="40" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-title" pointer-events="none"><text text-anchor="middle" transform="translate(-57.3134765625,20) rotate(-90) translate(0,-2)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">reference</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-column-header concat_0_concat_0_column_header" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,-1)"><path class="background" aria-hidden="true" d="M0,0h200v0h-200Z"/><g><g class="mark-group role-title"><g transform="translate(100,-20)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'chromium'" pointer-events="none"><text text-anchor="middle" transform="translate(0,8)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">chromium</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-column-footer concat_0_concat_0_column_footer" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,41)"><path class="background" aria-hidden="true" d="M0,0h200v0h-200Z"/><g><g class="mark-group role-axis" role="graphics-symbol" aria-roledescription="axis" aria-label="X-axis titled 'Time (ms)' for a linear scale with values from 18,204 to 18,204"><g transform="translate(0.5,0.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-tick" pointer-events="none"><line transform="translate(100,0)" x2="0" y2="5" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-label" pointer-events="none"><text text-anchor="middle" transform="translate(100,15)" font-family="sans-serif" font-size="10px" fill="#000" opacity="1">18,204</text></g><g class="mark-rule role-axis-domain" pointer-events="none"><line transform="translate(0,0)" x2="200" y2="0" stroke="#888" stroke-width="1" opacity="1"/></g><g class="mark-text role-axis-title" pointer-events="none"><text text-anchor="middle" transform="translate(100,30)" font-family="sans-serif" font-size="11px" font-weight="bold" fill="#000" opacity="1">Time (ms)</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-scope concat_0_concat_0_cell" role="graphics-object" aria-roledescription="group mark container"><g transform="translate(0,0)"><path class="background" aria-hidden="true" d="M0.5,0.5h200v40h-200Z" stroke="#ddd"/><g><g class="mark-group role-axis" aria-hidden="true"><g transform="translate(0.5,40.5)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-rule role-axis-grid" pointer-events="none"><line transform="translate(100,0)" x2="0" y2="-40" stroke="#ddd" stroke-width="1" opacity="1"/></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g><g class="mark-rule role-mark concat_0_concat_0_child_layer_0_marks" aria-hidden="true"><line transform="translate(100,10)" x2="0" y2="0" stroke="black"/><line transform="translate(100,30)" x2="0" y2="0" stroke="black"/></g><g class="mark-rule role-mark concat_0_concat_0_child_layer_1_marks" aria-hidden="true"><line transform="translate(100,10)" x2="0" y2="0" stroke="black"/><line transform="translate(100,30)" x2="0" y2="0" stroke="black"/></g><g class="mark-rect role-mark concat_0_concat_0_child_layer_2_marks" role="graphics-object" aria-roledescription="rect mark container"><path aria-label="Time (ms): 18204; reference: actual; upper_box_time: 18204; Max of Time (ms): 18204; Q3 of Time (ms): 18204; Median of Time (ms): 18204; Q1 of Time (ms): 18204; Min of Time (ms): 18204" role="graphics-symbol" aria-roledescription="box" d="M100,3h0v14h0Z" fill="#4c78a8"/><path aria-label="Time (ms): 18204; reference: expected; upper_box_time: 18204; Max of Time (ms): 18204; Q3 of Time (ms): 18204; Median of Time (ms): 18204; Q1 of Time (ms): 18204; Min of Time (ms): 18204" role="graphics-symbol" aria-roledescription="box" d="M100,23h0v14h0Z" fill="#4c78a8"/></g><g class="mark-rect role-mark concat_0_concat_0_child_layer_3_marks" aria-hidden="true"><path d="M99.5,3h1v14h-1Z" fill="white" opacity="0.7"/><path d="M99.5,23h1v14h-1Z" fill="white" opacity="0.7"/></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-69.3134765625,-69)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'open'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">open</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-69.3134765625,-86)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'large_code_notebook'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">large_code_notebook</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g><g class="mark-group role-title"><g transform="translate(-69.3134765625,-103)"><path class="background" aria-hidden="true" d="M0,0h0v0h0Z" pointer-events="none"/><g><g class="mark-text role-title-text" role="graphics-symbol" aria-roledescription="title" aria-label="Title text 'Duration of common actions'" pointer-events="none"><text text-anchor="start" transform="translate(0,10)" font-family="sans-serif" font-size="13px" font-weight="bold" fill="#000" opacity="1">Duration of common actions</text></g></g><path class="foreground" aria-hidden="true" d="" pointer-events="none" display="none"/></g></g></g><path class="foreground" aria-hidden="true" d="" display="none"/></g></g></g></svg>
\ No newline at end of file
diff --git a/galata/test/galata/filebrowser.spec.ts b/galata/test/galata/filebrowser.spec.ts
new file mode 100644
index 000000000000..b555565f9371
--- /dev/null
+++ b/galata/test/galata/filebrowser.spec.ts
@@ -0,0 +1,48 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+const DEFAULT_NAME = 'Untitled.ipynb';
+
+test.describe('filebrowser helper', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.menu.clickMenuItem('File>New>Notebook');
+
+    await page
+      .locator('.jp-Dialog')
+      .getByRole('button', { name: 'Select Kernel', exact: true })
+      .click();
+
+    await page.activity.closeAll();
+  });
+
+  test('should open a file', async ({ page }) => {
+    await page.filebrowser.open(DEFAULT_NAME);
+
+    expect(await page.activity.isTabActive(DEFAULT_NAME)).toEqual(true);
+  });
+
+  test('should activate already opened file', async ({ page }) => {
+    await page.menu.clickMenuItem('File>New>Console');
+
+    await page
+      .locator('.jp-Dialog')
+      .getByRole('button', { name: 'Select Kernel', exact: true })
+      .click();
+
+    expect.soft(await page.activity.isTabActive(DEFAULT_NAME)).toEqual(false);
+    await page.filebrowser.open(DEFAULT_NAME);
+    expect(await page.activity.isTabActive(DEFAULT_NAME)).toEqual(true);
+  });
+
+  test('should open the file with another factory', async ({ page }) => {
+    await page.filebrowser.open(DEFAULT_NAME);
+
+    await page.filebrowser.open(DEFAULT_NAME, 'Editor');
+
+    await expect(
+      page.getByRole('main').getByRole('tab', { name: DEFAULT_NAME })
+    ).toHaveCount(2);
+  });
+});
diff --git a/galata/test/galata/fixture.spec.ts b/galata/test/galata/fixture.spec.ts
index 20d5a6afe7c0..f23cb2e8fe35 100644
--- a/galata/test/galata/fixture.spec.ts
+++ b/galata/test/galata/fixture.spec.ts
@@ -16,7 +16,7 @@ test.describe('page', () => {
 
   test('should have playwright Page interface', async ({ page }) => {
     expect(page.waitForSelector).toBe(
-      ((page as any) as JupyterLabPage).page.waitForSelector
+      (page as unknown as JupyterLabPage).page.waitForSelector
     );
   });
 });
@@ -37,7 +37,7 @@ test.describe('mockSettings', () => {
 
   test('should not return mocked settings after save', async ({ page }) => {
     await page.click('text=Settings');
-    await page.click('ul[role="menu"] >> text=Theme');
+    await page.click('.lm-Menu ul[role="menu"] >> text=Theme');
     const [response] = await Promise.all([
       page.waitForResponse(
         response =>
@@ -45,7 +45,7 @@ test.describe('mockSettings', () => {
             response.url()
           ) && response.request().method() === 'GET'
       ),
-      page.click('ul[role="menu"] >> text=JupyterLab Light')
+      page.click('.lm-Menu ul[role="menu"] >> text=JupyterLab Light')
     ]);
 
     await page.waitForSelector('#jupyterlab-splash', { state: 'detached' });
diff --git a/galata/test/galata/jupyterlabpage.spec.ts b/galata/test/galata/jupyterlabpage.spec.ts
index 6490420e86b2..c2081e3a9a50 100644
--- a/galata/test/galata/jupyterlabpage.spec.ts
+++ b/galata/test/galata/jupyterlabpage.spec.ts
@@ -14,9 +14,9 @@ test.describe('appPath', () => {
 });
 
 test('should goto the application page and load hook', async ({ page }) => {
-  expect(
-    await page.evaluate(() => typeof window.galataip === 'object')
-  ).toEqual(true);
+  expect(await page.evaluate(() => typeof window.galata === 'object')).toEqual(
+    true
+  );
 });
 
 test('should test if the application is in simple mode', async ({ page }) => {
@@ -26,15 +26,15 @@ test('should test if the application is in simple mode', async ({ page }) => {
 test('should reload the application page and load hook', async ({ page }) => {
   await page.reload();
 
-  expect(
-    await page.evaluate(() => typeof window.galataip === 'object')
-  ).toEqual(true);
+  expect(await page.evaluate(() => typeof window.galata === 'object')).toEqual(
+    true
+  );
 });
 
 test('should reset the UI', async ({ page }) => {
   await page.resetUI();
   expect(await page.menu.isAnyOpen()).toEqual(false);
-  expect(await page.waitForSelector(page.launcherSelector)).toBeTruthy();
+  await expect(page.launcher).toBeVisible();
   expect(await page.kernel.isAnyRunning()).toEqual(false);
   expect(await page.statusbar.isVisible()).toEqual(true);
   expect(await page.sidebar.isTabOpen('filebrowser')).toEqual(true);
@@ -47,8 +47,205 @@ test('should toggle simple mode', async ({ page }) => {
 
 // test that stock playwright test is accessible with page not being JupyterLabPage
 playwrightTest('should not be loading galata helper', async ({ page }) => {
-  // eslint-disable-next-line jest/no-standalone-expect
   expect(page['notebook']).toBeUndefined(); // no helper
-  // eslint-disable-next-line jest/no-standalone-expect
   expect(page.url()).toEqual('about:blank');
 });
+
+test.describe('listeners', () => {
+  const DEFAULT_NAME = 'untitled.txt';
+
+  test('should listen to JupyterLab dialog', async ({ page }) => {
+    await page.evaluate(() => {
+      window.galata.on('dialog', d => {
+        // We need to slightly wait before rejecting otherwise
+        // the `locator('.jp-Dialog').waitFor()` is not resolved.
+        setTimeout(() => d?.reject(), 100);
+      });
+    });
+
+    await page.menu.clickMenuItem('File>New>Text File');
+    await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+
+    await Promise.all([
+      page.locator('.jp-Dialog').waitFor(),
+      page.menu.clickMenuItem('File>Save Text As…')
+    ]);
+
+    await expect(page.locator('.jp-Dialog')).toHaveCount(0);
+  });
+
+  test('should stop listening to JupyterLab dialog', async ({ page }) => {
+    await page.evaluate(() => {
+      const callback = d => {
+        // We need to slightly wait before rejecting otherwise
+        // the `locator('.jp-Dialog').waitFor()` is not resolved.
+        setTimeout(() => d?.reject(), 100);
+        window.galata.off('dialog', callback);
+      };
+      window.galata.on('dialog', callback);
+    });
+
+    await page.menu.clickMenuItem('File>New>Text File');
+    await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+
+    await Promise.all([
+      page.locator('.jp-Dialog').waitFor(),
+      page.menu.clickMenuItem('File>Save Text As…')
+    ]);
+
+    await expect(page.locator('.jp-Dialog')).toHaveCount(0);
+
+    await Promise.all([
+      page.locator('.jp-Dialog').waitFor(),
+      page.menu.clickMenuItem('File>Save Text As…')
+    ]);
+
+    await expect(page.locator('.jp-Dialog')).toHaveCount(1);
+  });
+
+  test('should listen only once to JupyterLab dialog', async ({ page }) => {
+    await page.evaluate(() => {
+      const callback = d => {
+        // We need to slightly wait before rejecting otherwise
+        // the `locator('.jp-Dialog').waitFor()` is not resolved.
+        setTimeout(() => d?.reject(), 100);
+      };
+      window.galata.once('dialog', callback);
+    });
+
+    await page.menu.clickMenuItem('File>New>Text File');
+    await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+
+    await Promise.all([
+      page.locator('.jp-Dialog').waitFor(),
+      page.menu.clickMenuItem('File>Save Text As…')
+    ]);
+
+    await expect(page.locator('.jp-Dialog')).toHaveCount(0);
+
+    await Promise.all([
+      page.locator('.jp-Dialog').waitFor(),
+      page.menu.clickMenuItem('File>Save Text As…')
+    ]);
+
+    await expect(page.locator('.jp-Dialog')).toHaveCount(1);
+  });
+
+  test('should listen to JupyterLab notification', async ({ page }) => {
+    await page.evaluate(() => {
+      window.galata.on('notification', n => {
+        // We need to slightly wait before dismissing otherwise
+        // the toast is not yet displayed and won't be removed when the notification
+        // is dismissed.
+        setTimeout(() => {
+          void window.jupyterapp.commands.execute(
+            'apputils:dismiss-notification',
+            {
+              id: n.id
+            }
+          );
+        }, 100);
+      });
+    });
+
+    await Promise.all([
+      page.locator('.Toastify__toast').waitFor(),
+      page.evaluate(() => {
+        void window.jupyterapp.commands.execute('apputils:notify', {
+          message: 'This is a test message',
+          options: { autoClose: false }
+        });
+      })
+    ]);
+    await expect(page.locator('.Toastify__toast')).toHaveCount(0);
+  });
+
+  test('should stop listening to JupyterLab notification', async ({ page }) => {
+    await page.evaluate(() => {
+      const callback = n => {
+        // We need to slightly wait before dismissing otherwise
+        // the toast is not yet displayed and won't be removed when the notification
+        // is dismissed.
+        setTimeout(() => {
+          void window.jupyterapp.commands.execute(
+            'apputils:dismiss-notification',
+            {
+              id: n.id
+            }
+          );
+        }, 100);
+        window.galata.off('notification', callback);
+      };
+      window.galata.on('notification', callback);
+    });
+
+    await Promise.all([
+      page.locator('.Toastify__toast').waitFor(),
+      page.evaluate(() => {
+        return window.jupyterapp.commands.execute('apputils:notify', {
+          message: 'This is a test message',
+          options: { autoClose: false }
+        });
+      })
+    ]);
+
+    await expect(page.locator('.Toastify__toast')).toHaveCount(0);
+
+    await Promise.all([
+      page.locator('.Toastify__toast').waitFor(),
+      page.evaluate(() => {
+        return window.jupyterapp.commands.execute('apputils:notify', {
+          message: 'This is a test message',
+          options: { autoClose: false }
+        });
+      })
+    ]);
+
+    await expect(page.locator('.Toastify__toast')).toHaveCount(1);
+  });
+
+  test('should listen only once to JupyterLab notification', async ({
+    page
+  }) => {
+    await page.evaluate(() => {
+      const callback = n => {
+        // We need to slightly wait before dismissing otherwise
+        // the toast is not yet displayed and won't be removed when the notification
+        // is dismissed.
+        setTimeout(() => {
+          void window.jupyterapp.commands.execute(
+            'apputils:dismiss-notification',
+            {
+              id: n.id
+            }
+          );
+        }, 100);
+      };
+      window.galata.once('notification', callback);
+    });
+
+    await Promise.all([
+      page.locator('.Toastify__toast').waitFor(),
+      page.evaluate(() => {
+        return window.jupyterapp.commands.execute('apputils:notify', {
+          message: 'This is a test message',
+          options: { autoClose: false }
+        });
+      })
+    ]);
+
+    await expect(page.locator('.Toastify__toast')).toHaveCount(0);
+
+    await Promise.all([
+      page.locator('.Toastify__toast').waitFor(),
+      page.evaluate(() => {
+        return window.jupyterapp.commands.execute('apputils:notify', {
+          message: 'This is a test message',
+          options: { autoClose: false }
+        });
+      })
+    ]);
+
+    await expect(page.locator('.Toastify__toast')).toHaveCount(1);
+  });
+});
diff --git a/galata/test/galata/notebook.spec.ts b/galata/test/galata/notebook.spec.ts
index c04d2c647963..5159400a92d1 100644
--- a/galata/test/galata/notebook.spec.ts
+++ b/galata/test/galata/notebook.spec.ts
@@ -4,15 +4,13 @@
 
 import * as path from 'path';
 
-import { expect, test } from '@jupyterlab/galata';
+import { expect, galata, test } from '@jupyterlab/galata';
 
 test.describe('Notebook Tests', () => {
   test('Create New Notebook', async ({ page, tmpPath }) => {
     const fileName = 'create_test.ipynb';
     await page.notebook.createNew(fileName);
-    expect(
-      await page.waitForSelector(`[role="main"] >> text=${fileName}`)
-    ).toBeTruthy();
+    await page.getByRole('main').getByText(fileName).waitFor();
 
     expect(await page.contents.fileExists(`${tmpPath}/${fileName}`)).toEqual(
       true
@@ -27,11 +25,9 @@ test.describe('Notebook Tests', () => {
     expect(await page.notebook.getCellType(0)).toBe('markdown');
 
     // Wait for kernel to be idle
-    expect(
-      await page.waitForSelector(`#jp-main-statusbar >> text=Idle`)
-    ).toBeTruthy();
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
 
-    expect(await (await page.$('[role="main"]')).screenshot()).toMatchSnapshot(
+    expect(await page.getByRole('main').screenshot()).toMatchSnapshot(
       'markdown-cell.png'
     );
   });
@@ -45,11 +41,11 @@ test.describe('Notebook Tests', () => {
 
     // Wait for kernel to be idle and the debug switch to appear
     await Promise.all([
-      page.waitForSelector(`#jp-main-statusbar >> text=Idle`),
-      page.waitForSelector('.jp-DebuggerBugButton')
+      page.locator('#jp-main-statusbar').getByText('Idle').waitFor(),
+      page.locator('.jp-DebuggerBugButton').waitFor()
     ]);
 
-    expect(await (await page.$('[role="main"]')).screenshot()).toMatchSnapshot(
+    expect(await page.getByRole('main').screenshot()).toMatchSnapshot(
       'raw-cell.png'
     );
   });
@@ -62,11 +58,9 @@ test.describe('Notebook Tests', () => {
     expect(await page.notebook.getCellType(1)).toBe('code');
 
     // Wait for kernel to be idle
-    expect(
-      await page.waitForSelector(`#jp-main-statusbar >> text=Idle`)
-    ).toBeTruthy();
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
 
-    expect(await (await page.$('[role="main"]')).screenshot()).toMatchSnapshot(
+    expect(await page.getByRole('main').screenshot()).toMatchSnapshot(
       'code-cell.png'
     );
   });
@@ -83,7 +77,7 @@ test.describe('Notebook Tests', () => {
 
     expect((await page.notebook.getCellTextOutput(2))![0]).toBe('4');
 
-    expect(await (await page.$('[role="main"]')).screenshot()).toMatchSnapshot(
+    expect(await page.getByRole('main').screenshot()).toMatchSnapshot(
       'run-cells.png'
     );
   });
@@ -101,6 +95,8 @@ test.describe('Notebook Tests', () => {
     await page.notebook.activate(notebook);
     expect(await page.notebook.isActive(notebook)).toBeTruthy();
 
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
+
     await page.notebook.runCellByCell();
 
     const cellOutput2 = await page.notebook.getCellTextOutput(2);
@@ -113,7 +109,7 @@ test.describe('Notebook Tests', () => {
 
     const panel = await page.activity.getPanel();
 
-    expect(await panel.screenshot()).toMatchSnapshot('example-run.png');
+    expect(await panel!.screenshot()).toMatchSnapshot('example-run.png');
   });
 
   test('Open folder of notebook and run', async ({ page, tmpPath }) => {
@@ -124,13 +120,70 @@ test.describe('Notebook Tests', () => {
     );
 
     await page.notebook.openByPath(`${tmpPath}/${filename}`);
+
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
+
     await page.notebook.runCellByCell();
 
-    expect(await page.waitForSelector('text=100')).toBeTruthy();
+    expect(await page.getByText('100').count()).toBeGreaterThanOrEqual(1);
 
     await page.notebook.revertChanges();
     await page.notebook.close();
 
-    expect(await page.waitForSelector(page.launcherSelector)).toBeTruthy();
+    await expect(page.launcher).toBeVisible();
+  });
+});
+
+test.describe('Access cells in windowed notebook', () => {
+  test.use({
+    mockSettings: {
+      ...galata.DEFAULT_SETTINGS,
+      '@jupyterlab/notebook-extension:tracker': {
+        ...galata.DEFAULT_SETTINGS['@jupyterlab/notebook-extension:tracker'],
+        windowingMode: 'full'
+      }
+    }
+  });
+
+  test('get the cell count', async ({ page, tmpPath }) => {
+    const target = `${tmpPath}/windowed_notebook.ipynb`;
+    await page.contents.uploadFile(
+      path.resolve(__dirname, 'notebooks/windowed_notebook.ipynb'),
+      target
+    );
+
+    await page.filebrowser.open(target);
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
+
+    expect(await page.notebook.getCellCount()).toEqual(14);
+  });
+
+  test('getCell below the viewport', async ({ page, tmpPath }) => {
+    const target = `${tmpPath}/windowed_notebook.ipynb`;
+    await page.contents.uploadFile(
+      path.resolve(__dirname, 'notebooks/windowed_notebook.ipynb'),
+      target
+    );
+
+    await page.filebrowser.open(target);
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
+
+    expect(await page.notebook.getCell(12)).toBeTruthy();
+  });
+
+  test('getCell above the viewport', async ({ page, tmpPath }) => {
+    const target = `${tmpPath}/windowed_notebook.ipynb`;
+    await page.contents.uploadFile(
+      path.resolve(__dirname, 'notebooks/windowed_notebook.ipynb'),
+      target
+    );
+
+    await page.filebrowser.open(target);
+    await page.locator('#jp-main-statusbar').getByText('Idle').waitFor();
+    await page.waitForTimeout(50);
+
+    await page.notebook.getCell(12);
+
+    expect(await page.notebook.getCell(0)).toBeTruthy();
   });
 });
diff --git a/galata/test/galata/notebook.spec.ts-snapshots/code-cell-galata-linux.png b/galata/test/galata/notebook.spec.ts-snapshots/code-cell-galata-linux.png
index 8cbecf36e91e..0b110ac3a4ea 100644
Binary files a/galata/test/galata/notebook.spec.ts-snapshots/code-cell-galata-linux.png and b/galata/test/galata/notebook.spec.ts-snapshots/code-cell-galata-linux.png differ
diff --git a/galata/test/galata/notebook.spec.ts-snapshots/example-run-galata-linux.png b/galata/test/galata/notebook.spec.ts-snapshots/example-run-galata-linux.png
index 6713a62a507d..c085580b09f0 100644
Binary files a/galata/test/galata/notebook.spec.ts-snapshots/example-run-galata-linux.png and b/galata/test/galata/notebook.spec.ts-snapshots/example-run-galata-linux.png differ
diff --git a/galata/test/galata/notebook.spec.ts-snapshots/markdown-cell-galata-linux.png b/galata/test/galata/notebook.spec.ts-snapshots/markdown-cell-galata-linux.png
index e6cbb9baa3fc..39ac67b891c9 100644
Binary files a/galata/test/galata/notebook.spec.ts-snapshots/markdown-cell-galata-linux.png and b/galata/test/galata/notebook.spec.ts-snapshots/markdown-cell-galata-linux.png differ
diff --git a/galata/test/galata/notebook.spec.ts-snapshots/raw-cell-galata-linux.png b/galata/test/galata/notebook.spec.ts-snapshots/raw-cell-galata-linux.png
index d2fe046fb282..3f7ea71e0ee3 100644
Binary files a/galata/test/galata/notebook.spec.ts-snapshots/raw-cell-galata-linux.png and b/galata/test/galata/notebook.spec.ts-snapshots/raw-cell-galata-linux.png differ
diff --git a/galata/test/galata/notebook.spec.ts-snapshots/run-cells-galata-linux.png b/galata/test/galata/notebook.spec.ts-snapshots/run-cells-galata-linux.png
index a20d7a81f11f..c2c41a63cf82 100644
Binary files a/galata/test/galata/notebook.spec.ts-snapshots/run-cells-galata-linux.png and b/galata/test/galata/notebook.spec.ts-snapshots/run-cells-galata-linux.png differ
diff --git a/galata/test/galata/notebooks/example.ipynb b/galata/test/galata/notebooks/example.ipynb
index eca9c71e4eeb..af89605e7879 100644
--- a/galata/test/galata/notebooks/example.ipynb
+++ b/galata/test/galata/notebooks/example.ipynb
@@ -7,6 +7,7 @@
    "outputs": [],
    "source": [
     "from IPython.display import Image\n",
+    "\n",
     "Image('./jupyter.png', width=80)"
    ]
   },
@@ -40,6 +41,7 @@
    "outputs": [],
    "source": [
     "import math\n",
+    "\n",
     "math.pi / 2"
    ]
   },
diff --git a/galata/test/galata/notebooks/simple_test.ipynb b/galata/test/galata/notebooks/simple_test.ipynb
index 809a1be74fbb..57b2ed6a7dbd 100644
--- a/galata/test/galata/notebooks/simple_test.ipynb
+++ b/galata/test/galata/notebooks/simple_test.ipynb
@@ -19,9 +19,7 @@
    "execution_count": 27,
    "source": [
     "from IPython.display import display\n",
-    "from IPython.display import (\n",
-    "    HTML, Image, Latex, Math, Markdown, SVG\n",
-    ")"
+    "from IPython.display import HTML, Image, Latex, Math, Markdown, SVG"
    ],
    "outputs": [],
    "metadata": {}
@@ -108,7 +106,9 @@
    "cell_type": "code",
    "execution_count": 30,
    "source": [
-    "import sys; print('this is stderr', file=sys.stderr)"
+    "import sys\n",
+    "\n",
+    "print('this is stderr', file=sys.stderr)"
    ],
    "outputs": [
     {
@@ -232,12 +232,14 @@
    "cell_type": "code",
    "execution_count": 33,
    "source": [
-    "md = Markdown(\"\"\"\n",
+    "md = Markdown(\n",
+    "    \"\"\"\n",
     "### Subtitle\n",
     "\n",
     "This is some *markdown* text with math $F=ma$.\n",
     "\n",
-    "\"\"\")\n",
+    "\"\"\"\n",
+    ")\n",
     "md"
    ],
    "outputs": [
@@ -336,13 +338,15 @@
    "cell_type": "code",
    "execution_count": 36,
    "source": [
-    "maxwells = Latex(r\"\"\"\n",
+    "maxwells = Latex(\n",
+    "    r\"\"\"\n",
     "\\begin{align}\n",
     "\\nabla \\times \\vec{\\mathbf{B}} -\\, \\frac1c\\, \\frac{\\partial\\vec{\\mathbf{E}}}{\\partial t} & = \\frac{4\\pi}{c}\\vec{\\mathbf{j}} \\\\   \\nabla \\cdot \\vec{\\mathbf{E}} & = 4 \\pi \\rho \\\\\n",
     "\\nabla \\times \\vec{\\mathbf{E}}\\, +\\, \\frac1c\\, \\frac{\\partial\\vec{\\mathbf{B}}}{\\partial t} & = \\vec{\\mathbf{0}} \\\\\n",
     "\\nabla \\cdot \\vec{\\mathbf{B}} & = 0\n",
     "\\end{align}\n",
-    "\"\"\")\n",
+    "\"\"\"\n",
+    ")\n",
     "maxwells"
    ],
    "outputs": [
@@ -486,4 +490,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
\ No newline at end of file
+}
diff --git a/galata/test/galata/notebooks/windowed_notebook.ipynb b/galata/test/galata/notebooks/windowed_notebook.ipynb
new file mode 100644
index 000000000000..ad161c3921bc
--- /dev/null
+++ b/galata/test/galata/notebooks/windowed_notebook.ipynb
@@ -0,0 +1,316 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "4c296a32-1a0c-40e9-8e44-696db2c25eef",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "[local link](#Title)"
+      ],
+      "text/plain": [
+       "<IPython.core.display.Markdown object>"
+      ]
+     },
+     "execution_count": 16,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# dummy\n",
+    "from IPython.display import Markdown\n",
+    "\n",
+    "Markdown('[local link](#Title)')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "f075900d-442f-40b3-842d-9575568d434b",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div style=\"width:100px;height:350px;background:black;\"></div>"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "execution_count": 17,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "from IPython.display import display, HTML\n",
+    "\n",
+    "div = HTML('<div style=\"width:100px;height:350px;background:black;\"></div>')\n",
+    "div"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "569f59b8-9ffe-47e0-9d39-971da701c380",
+   "metadata": {
+    "tags": []
+   },
+   "source": [
+    "# Test JupyterLab windowed notebook"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "e3ba1ca5-8358-462c-bf90-131d6dba9790",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div style=\"width:100px;height:350px;background:black;\"></div>"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "div"
+   ]
+  },
+  {
+   "cell_type": "raw",
+   "id": "23c8c825-f03f-4039-bf73-74e5a6e21bf3",
+   "metadata": {},
+   "source": [
+    "jupyterlab"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "cf7edd3c-9499-4301-ad0c-094f18da4d5e",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "application/geo+json": {
+       "geometry": {
+        "coordinates": [
+         -118.4563712,
+         34.0163116
+        ],
+        "type": "Point"
+       },
+       "type": "Feature"
+      },
+      "text/plain": [
+       "<IPython.display.GeoJSON object>"
+      ]
+     },
+     "metadata": {
+      "application/geo+json": {
+       "expanded": false,
+       "root": "root"
+      }
+     },
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "from IPython.display import GeoJSON\n",
+    "\n",
+    "GeoJSON(\n",
+    "    {\"type\": \"Feature\", \"geometry\": {\"type\": \"Point\", \"coordinates\": [-118.4563712, 34.0163116]}}\n",
+    ")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "352967bc-3746-4333-94ec-23f87fae5763",
+   "metadata": {
+    "tags": []
+   },
+   "source": [
+    "## Title"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 19,
+   "id": "40e0425e-3441-4f7f-92b7-56fd2ac6a19d",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "hello the world\n"
+     ]
+    }
+   ],
+   "source": [
+    "# Drag 1\n",
+    "print(\"hello the world\")"
+   ]
+  },
+  {
+   "cell_type": "raw",
+   "id": "519597e4-781c-4104-ad4a-2e7dee278e89",
+   "metadata": {},
+   "source": [
+    "Drag 2"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 20,
+   "id": "f2fb618b-d6f0-4047-aa02-e75fcea411a2",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n",
+      "A dummy text line\n"
+     ]
+    }
+   ],
+   "source": [
+    "from time import sleep\n",
+    "\n",
+    "for i in range(10):\n",
+    "    sleep(1)\n",
+    "    print(\"A dummy text line\")\n",
+    "# input('Your age')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 21,
+   "id": "ce7850b3-5d61-4c0c-ae49-32c25da997ef",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<div style=\"width:100px;height:350px;background:black;\"></div>"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "execution_count": 21,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "div"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 22,
+   "id": "2d4d56bb-ed96-46b9-a647-109971d6fa42",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from IPython.display import display, IFrame"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "id": "382d7fc0-c55b-4c5e-ae6e-31ee09cab13c",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "        <iframe\n",
+       "            width=\"600\"\n",
+       "            height=\"400\"\n",
+       "            src=\"https://jupyterlab.readthedocs.org/\"\n",
+       "            frameborder=\"0\"\n",
+       "            allowfullscreen\n",
+       "        ></iframe>\n",
+       "        "
+      ],
+      "text/plain": [
+       "<IPython.lib.display.IFrame at 0x7f78f2ae85b0>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "display(IFrame('https://jupyterlab.readthedocs.org/', width=600, height=400))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f96e0d00",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/galata/test.spec.ts b/galata/test/galata/test.spec.ts
index 17bc4b8ae3c7..e8d1fa8b695c 100644
--- a/galata/test/galata/test.spec.ts
+++ b/galata/test/galata/test.spec.ts
@@ -5,5 +5,5 @@
 import { expect, test } from '@jupyterlab/galata';
 
 test('should display the launcher', async ({ page }) => {
-  expect(await page.waitForSelector(page.launcherSelector)).toBeTruthy();
+  await expect(page.launcher).toBeVisible();
 });
diff --git a/galata/test/jupyterlab/announcements.test.ts b/galata/test/jupyterlab/announcements.test.ts
index fb2c03f1942a..706aa24b4847 100644
--- a/galata/test/jupyterlab/announcements.test.ts
+++ b/galata/test/jupyterlab/announcements.test.ts
@@ -13,9 +13,7 @@ test.use({
 });
 
 test('Announcements requires user agreement', async ({ page }) => {
-  const notifications = await page.evaluate(() => {
-    return (window.jupyterapp as any).notificationManager.notifications;
-  });
+  const notifications = await page.notifications;
 
   expect(notifications).toHaveLength(1);
   expect(notifications[0].message).toEqual(
@@ -74,12 +72,10 @@ test.describe('Update available', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
 
-    const updates = notifications.filter(n =>
-      n.options?.data?.tags?.includes('update')
+    const updates = notifications.filter(
+      n => n.options?.data?.tags?.includes('update')
     );
     expect(updates).toHaveLength(1);
     expect(updates[0].message).toEqual(message);
@@ -100,9 +96,7 @@ test.describe('Update available', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
 
     expect(
       notifications.filter(n => n.options?.data?.tags?.includes('update'))
@@ -129,9 +123,7 @@ test.describe('Update available', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
     expect(
       notifications.filter(n => n.options?.data?.tags?.includes('update'))
     ).toHaveLength(0);
@@ -193,12 +185,10 @@ test.describe('Fetch news', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
 
-    const news = notifications.filter(n =>
-      n.options?.data?.tags?.includes('news')
+    const news = notifications.filter(
+      n => n.options?.data?.tags?.includes('news')
     );
     expect(news).toHaveLength(2);
     expect(news.filter(n => n.options.data.id === id)[0].message).toEqual(
@@ -222,12 +212,10 @@ test.describe('Fetch news', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
 
-    const news = notifications.filter(n =>
-      n.options?.data?.tags?.includes('news')
+    const news = notifications.filter(
+      n => n.options?.data?.tags?.includes('news')
     );
     expect(news).toHaveLength(0);
   });
@@ -251,12 +239,10 @@ test.describe('Fetch news', () => {
 
     await page.goto();
 
-    const notifications = await page.evaluate(() => {
-      return (window.jupyterapp as any).notificationManager.notifications;
-    });
+    const notifications = await page.notifications;
 
-    const news = notifications.filter(n =>
-      n.options?.data?.tags?.includes('news')
+    const news = notifications.filter(
+      n => n.options?.data?.tags?.includes('news')
     );
     expect(news).toHaveLength(1);
     expect(news[0].id).not.toEqual(id);
diff --git a/galata/test/jupyterlab/cells-motion.spec.ts b/galata/test/jupyterlab/cells-motion.spec.ts
new file mode 100644
index 000000000000..10247fdcb608
--- /dev/null
+++ b/galata/test/jupyterlab/cells-motion.spec.ts
@@ -0,0 +1,170 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+const fileName = 'motion.ipynb';
+const cellSelector = '[role="main"] >> .jp-NotebookPanel >> .jp-Cell';
+
+test.beforeEach(async ({ page }) => {
+  await page.notebook.createNew(fileName);
+
+  // Populate the notebook
+  await page.notebook.setCell(0, 'markdown', '# Heading 1');
+  await page.notebook.addCell('code', '1+1');
+  await page.notebook.addCell('markdown', '## Heading 1.1');
+  await page.notebook.addCell('code', '2+2');
+  await page.notebook.addCell('markdown', '# Heading 2');
+  await page.notebook.addCell('code', '3+3');
+
+  await page.notebook.run();
+});
+
+test('Move down a cell', async ({ page }) => {
+  const content = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  await page
+    .locator(`${cellSelector} >> nth=2 >> .jp-InputArea-prompt`)
+    .click();
+
+  await page.keyboard.press('Control+Shift+ArrowDown');
+
+  await expect(page.locator(`${cellSelector} >> nth=3`)).toHaveClass(
+    /jp-mod-active/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=3`).allTextContents()
+  ).toEqual(content);
+});
+
+test('Move up a cell', async ({ page }) => {
+  const content = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  await page
+    .locator(`${cellSelector} >> nth=2 >> .jp-InputArea-prompt`)
+    .click();
+  await page.keyboard.press('Control+Shift+ArrowUp');
+
+  await expect(page.locator(`${cellSelector} >> nth=1`)).toHaveClass(
+    /jp-mod-active/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=1`).allTextContents()
+  ).toEqual(content);
+});
+
+test('Move down two cells with first active', async ({ page }) => {
+  const content1 = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  const content2 = await page
+    .locator(`${cellSelector} >> nth=3`)
+    .allTextContents();
+
+  await page
+    .locator(`${cellSelector} >> nth=3 >> .jp-InputArea-prompt`)
+    .click();
+
+  await page.keyboard.press('Shift+ArrowUp');
+  await page.keyboard.press('Control+Shift+ArrowDown');
+
+  await expect(page.locator(`${cellSelector} >> nth=3`)).toHaveClass(
+    /jp-mod-active/
+  );
+  await expect(page.locator(`${cellSelector} >> nth=4`)).toHaveClass(
+    /jp-mod-selected/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=3`).allTextContents()
+  ).toEqual(content1);
+  expect(
+    await page.locator(`${cellSelector} >> nth=4`).allTextContents()
+  ).toEqual(content2);
+});
+
+test('Move up two cells with first active', async ({ page }) => {
+  const content1 = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  const content2 = await page
+    .locator(`${cellSelector} >> nth=3`)
+    .allTextContents();
+
+  await page
+    .locator(`${cellSelector} >> nth=3 >> .jp-InputArea-prompt`)
+    .click();
+
+  await page.keyboard.press('Shift+ArrowUp');
+  await page.keyboard.press('Control+Shift+ArrowUp');
+
+  await expect(page.locator(`${cellSelector} >> nth=1`)).toHaveClass(
+    /jp-mod-active/
+  );
+  await expect(page.locator(`${cellSelector} >> nth=2`)).toHaveClass(
+    /jp-mod-selected/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=1`).allTextContents()
+  ).toEqual(content1);
+  expect(
+    await page.locator(`${cellSelector} >> nth=2`).allTextContents()
+  ).toEqual(content2);
+});
+
+test('Move down two cells with last active', async ({ page }) => {
+  const content1 = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  const content2 = await page
+    .locator(`${cellSelector} >> nth=3`)
+    .allTextContents();
+
+  await page
+    .locator(`${cellSelector} >> nth=2 >> .jp-InputArea-prompt`)
+    .click();
+  await page.keyboard.press('Shift+ArrowDown');
+  await page.keyboard.press('Control+Shift+ArrowDown');
+
+  await expect(page.locator(`${cellSelector} >> nth=3`)).toHaveClass(
+    /jp-mod-selected/
+  );
+  await expect(page.locator(`${cellSelector} >> nth=4`)).toHaveClass(
+    /jp-mod-active/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=3`).allTextContents()
+  ).toEqual(content1);
+  expect(
+    await page.locator(`${cellSelector} >> nth=4`).allTextContents()
+  ).toEqual(content2);
+});
+
+test('Move up two cells with last active', async ({ page }) => {
+  const content1 = await page
+    .locator(`${cellSelector} >> nth=2`)
+    .allTextContents();
+  const content2 = await page
+    .locator(`${cellSelector} >> nth=3`)
+    .allTextContents();
+  await page
+    .locator(`${cellSelector} >> nth=2 >> .jp-InputArea-prompt`)
+    .click();
+
+  await page.keyboard.press('Shift+ArrowDown');
+  await page.keyboard.press('Control+Shift+ArrowDown');
+
+  await expect(page.locator(`${cellSelector} >> nth=3`)).toHaveClass(
+    /jp-mod-selected/
+  );
+  await expect(page.locator(`${cellSelector} >> nth=4`)).toHaveClass(
+    /jp-mod-active/
+  );
+  expect(
+    await page.locator(`${cellSelector} >> nth=3`).allTextContents()
+  ).toEqual(content1);
+  expect(
+    await page.locator(`${cellSelector} >> nth=4`).allTextContents()
+  ).toEqual(content2);
+});
diff --git a/galata/test/jupyterlab/cells.test.ts b/galata/test/jupyterlab/cells.test.ts
new file mode 100644
index 000000000000..a6bf3d581116
--- /dev/null
+++ b/galata/test/jupyterlab/cells.test.ts
@@ -0,0 +1,34 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import * as path from 'path';
+
+const fileName = 'simple_notebook.ipynb';
+
+test.describe('Cells', () => {
+  test.beforeEach(async ({ page, request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
+    await contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+    await contents.uploadFile(
+      path.resolve(__dirname, './notebooks/WidgetArch.png'),
+      `${tmpPath}/WidgetArch.png`
+    );
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+  });
+
+  test('should collapse a cell', async ({ page }) => {
+    await page.notebook.run();
+
+    await page.locator('.jp-Cell-inputCollapser').nth(2).click();
+
+    expect(await page.locator('.jp-Cell').nth(2).screenshot()).toMatchSnapshot(
+      'collapsed-cell.png'
+    );
+  });
+});
diff --git a/galata/test/jupyterlab/cells.test.ts-snapshots/collapsed-cell-jupyterlab-linux.png b/galata/test/jupyterlab/cells.test.ts-snapshots/collapsed-cell-jupyterlab-linux.png
new file mode 100644
index 000000000000..5108feb78814
Binary files /dev/null and b/galata/test/jupyterlab/cells.test.ts-snapshots/collapsed-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/codemirror.test.ts b/galata/test/jupyterlab/codemirror.test.ts
new file mode 100644
index 000000000000..ae38a7a25f8a
--- /dev/null
+++ b/galata/test/jupyterlab/codemirror.test.ts
@@ -0,0 +1,43 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+
+const DEFAULT_NAME = 'untitled.txt';
+
+const RULERS_CONTENT = `0123456789
+          0123456789
+                    0123456789
+                              0123456789
+                                        0123456789
+                                                  0123456789
+0123456789
+          0123456789
+                    0123456789
+                              0123456789
+                                        0123456789
+                                                  0123456789`;
+
+test.describe('CodeMirror extensions', () => {
+  test.use({
+    mockSettings: {
+      ...galata.DEFAULT_SETTINGS,
+      '@jupyterlab/codemirror-extension:plugin': {
+        defaultConfig: {
+          rulers: [10, 20, 30, 40, 50, 60]
+        }
+      }
+    }
+  });
+
+  test('Should display rulers', async ({ page }) => {
+    await page.menu.clickMenuItem('File>New>Text File');
+
+    await page.getByRole('tab', { name: DEFAULT_NAME }).waitFor();
+
+    const editor = page.getByRole('region', { name: 'notebook content' });
+    await editor.getByRole('textbox').fill(RULERS_CONTENT);
+
+    expect(await editor.screenshot()).toMatchSnapshot('codemirror-rulers.png');
+  });
+});
diff --git a/galata/test/jupyterlab/codemirror.test.ts-snapshots/codemirror-rulers-jupyterlab-linux.png b/galata/test/jupyterlab/codemirror.test.ts-snapshots/codemirror-rulers-jupyterlab-linux.png
new file mode 100644
index 000000000000..e6a6bef5115b
Binary files /dev/null and b/galata/test/jupyterlab/codemirror.test.ts-snapshots/codemirror-rulers-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/collapsible-headings.test.ts b/galata/test/jupyterlab/collapsible-headings.test.ts
new file mode 100644
index 000000000000..d125a2ccc3aa
--- /dev/null
+++ b/galata/test/jupyterlab/collapsible-headings.test.ts
@@ -0,0 +1,280 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  expect,
+  galata,
+  IJupyterLabPageFixture,
+  test
+} from '@jupyterlab/galata';
+
+const fileName = 'notebook.ipynb';
+
+// const menuPaths = ['File', 'Edit', 'View', 'Run', 'Kernel', 'Help'];
+
+async function populateNotebook(page: IJupyterLabPageFixture) {
+  await page.notebook.setCell(0, 'markdown', '# Heading 1');
+  await page.notebook.addCell('code', '1+1');
+  await page.notebook.addCell('code', '2+2');
+}
+
+test.describe('Collapsible Headings; showHCB', () => {
+  // create an empty notebook for each test
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew(fileName);
+    await populateNotebook(page);
+    await page.notebook.run();
+  });
+
+  test('Show Collapser Unselected; showHCB', async ({ page }) => {
+    expect(await (await page.notebook.getCell(0)).screenshot()).toMatchSnapshot(
+      'showHCB_heading_unselected.png'
+    );
+  });
+
+  test('Show Collapser Selected; showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    expect(await (await page.notebook.getCell(0)).screenshot()).toMatchSnapshot(
+      'showHCB_heading_selected.png'
+    );
+  });
+
+  test('Collapse Heading; showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('showHCB_collapse_heading.png');
+  });
+
+  test('Expand Heading via Collapser Button; showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('showHCB_expand_heading_via_collapser.png');
+  });
+});
+
+test.describe('Collapsible Headings; no_showHCB', () => {
+  // create an empty notebook for each test
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew(fileName);
+    await populateNotebook(page);
+    await page.notebook.run();
+  });
+  // use non-standard showHiddenCellsButton=false
+  test.use({
+    mockSettings: {
+      ...galata.DEFAULT_SETTINGS,
+      '@jupyterlab/notebook-extension:tracker': {
+        ...galata.DEFAULT_SETTINGS['@jupyterlab/notebook-extension:tracker'],
+        showHiddenCellsButton: false
+      }
+    }
+  });
+
+  test('Show Collapser Unselected; no_showHCB', async ({ page }) => {
+    expect(await (await page.notebook.getCell(0)).screenshot()).toMatchSnapshot(
+      'no_showHCB_heading_unselected.png'
+    );
+  });
+
+  test('Show Collapser Selected; no_showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    expect(await (await page.notebook.getCell(0)).screenshot()).toMatchSnapshot(
+      'no_showHCB_heading_selected.png'
+    );
+  });
+
+  test('Collapse Heading; no_showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('no_showHCB_collapse_heading.png');
+  });
+
+  test('Expand Heading via Collapser Button; no_showHCB', async ({ page }) => {
+    await page.notebook.selectCells(0);
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    await page.click('text=# Heading 1Heading 1¶ >> button');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('no_showHCB_expand_heading_via_collapser.png');
+  });
+});
+
+async function populateNotebook2(page: IJupyterLabPageFixture) {
+  await page.notebook.setCell(0, 'markdown', '# Heading 1');
+  await page.notebook.addCell('code', '1+1');
+  await page.notebook.addCell('markdown', '## Heading 1.1');
+  await page.notebook.addCell('code', '2+2');
+  await page.notebook.addCell('markdown', '# Heading 2');
+  await page.notebook.addCell('code', '3+3');
+  await page.notebook.addCell('code', '4+4');
+}
+
+test.describe('Collapsible Headings; keyboard navigation', () => {
+  // create an empty notebook for each test
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew(fileName);
+    await populateNotebook2(page);
+    await page.notebook.run();
+  });
+
+  test('Jump to Previous Header', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('jump_previous_header.png');
+  });
+
+  test('Collapse Previous Header', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('collapse_previous_header.png');
+  });
+
+  test('Collapse Previous Headers', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('collapse_previous_headers.png');
+  });
+
+  test('ReExpand Headers 01', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('a');
+    await page.keyboard.press('ArrowRight');
+    await page.keyboard.press('ArrowRight');
+    await page.keyboard.press('ArrowRight');
+    await page.keyboard.press('ArrowLeft');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('reexpand_headers_01.png');
+  });
+
+  test('ReExpand Headers 02', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowDown');
+    await page.keyboard.press('ArrowRight');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('reexpand_headers_02.png');
+  });
+
+  test('ReExpand Headers 03', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowUp');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('reexpand_headers_03a.png');
+    await page.keyboard.press('ArrowRight');
+    await page.keyboard.press('ArrowRight');
+    await page.keyboard.press('ArrowRight');
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('reexpand_headers_03b.png');
+  });
+
+  test('Add Header Below 01', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('Shift+B');
+    await page.waitForTimeout(200);
+    await page.keyboard.type('Heading 3');
+    await page.keyboard.press('Shift+Enter');
+    await page.notebook.selectCells(2);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_below_01.png');
+  });
+
+  /** Check that header below adds header at end of present-level section. */
+  test('Add Header Below 02', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('Shift+B');
+    await page.waitForTimeout(200);
+    await page.keyboard.type('Heading 3');
+    await page.keyboard.press('Shift+Enter');
+    await page.notebook.selectCells(0);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_below_02.png');
+  });
+
+  test('Add Header Below 03', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowUp');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('Shift+B');
+    await page.waitForTimeout(200);
+    await page.keyboard.type('Heading 1.2');
+    await page.keyboard.press('Shift+Enter');
+    await page.notebook.selectCells(2);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_below_03.png');
+  });
+
+  /** Checks also if the cursor is at the right position when adding heading */
+  test('Add Header Above 01', async ({ page }) => {
+    await page.notebook.selectCells(6);
+    await page.keyboard.press('Shift+A');
+    await page.waitForTimeout(200);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_above_01.png');
+  });
+
+  /** Checks also if the cursor is at the right position when adding heading */
+  test('Add Header Above 02', async ({ page }) => {
+    await page.notebook.selectCells(4);
+    await page.keyboard.press('Shift+A');
+    await page.waitForTimeout(200);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_above_02.png');
+  });
+
+  /** Checks also if the cursor is at the right position when adding heading */
+  test('Add Header Above 03', async ({ page }) => {
+    await page.notebook.selectCells(3);
+    await page.keyboard.press('Shift+A');
+    await page.waitForTimeout(200);
+    expect(
+      await (await page.notebook.getNotebookInPanel()).screenshot()
+    ).toMatchSnapshot('add_header_above_03.png');
+  });
+});
diff --git a/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/add-header-above-01-jupyterlab-linux.png b/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/add-header-above-01-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/collapse-previous-header-jupyterlab-linux.png b/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/collapse-previous-header-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/jump-previous-header-jupyterlab-linux.png b/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/jump-previous-header-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/showHCB-heading-unselected-jupyterlab-linux.png b/galata/test/jupyterlab/collapsible-headings.test.ts-snapshots/showHCB-heading-unselected-jupyterlab-linux.png
new file mode 100644
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diff --git a/galata/test/jupyterlab/completer.test.ts b/galata/test/jupyterlab/completer.test.ts
index 0cde24f7d01d..7dfa603ad0e5 100644
--- a/galata/test/jupyterlab/completer.test.ts
+++ b/galata/test/jupyterlab/completer.test.ts
@@ -1,7 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expect, test } from '@jupyterlab/galata';
+import { expect, galata, test } from '@jupyterlab/galata';
+import * as path from 'path';
 
 const fileName = 'notebook.ipynb';
 const COMPLETER_SELECTOR = '.jp-Completer';
@@ -25,12 +26,90 @@ test.describe('Completer', () => {
       // we need to wait until the completer gets bound to the cell after entering it
       await page.waitForTimeout(50);
       await page.keyboard.press('Tab');
+      let completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      await page.keyboard.press('Escape');
+      await page.waitForTimeout(50);
+      await expect(completer).toBeHidden();
+      await page.keyboard.press('Tab');
+      completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      const imageName = 'completer.png';
+      expect(await completer.screenshot()).toMatchSnapshot(imageName);
+    });
 
-      const completer = page.locator(COMPLETER_SELECTOR);
+    test('Show documentation panel', async ({ page, tmpPath }) => {
+      const scriptName = 'completer_panel.py';
+      await page.contents.uploadFile(
+        path.resolve(__dirname, `./notebooks/${scriptName}`),
+        `${tmpPath}/${scriptName}`
+      );
+      await galata.Mock.mockSettings(page, [], {
+        ...galata.DEFAULT_SETTINGS,
+        '@jupyterlab/completer-extension:manager': {
+          showDocumentationPanel: true
+        }
+      });
+      await page.notebook.save();
+      await page.goto();
+      await page.notebook.openByPath(fileName);
+
+      await page.notebook.setCell(
+        0,
+        'code',
+        'from completer_panel import option_1, option_2'
+      );
+      await page.notebook.runCell(0, true);
+      await page.notebook.addCell('code', 'option');
+      await page.notebook.enterCellEditingMode(1);
+
+      // we need to wait until the completer gets bound to the cell after entering it
+      await page.waitForTimeout(50);
+      await page.keyboard.press('Tab');
+      let completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      await page.keyboard.press('Escape');
+      await page.waitForTimeout(50);
+      await expect(completer).toBeHidden();
+      await page.keyboard.press('Tab');
+      completer = page.locator(COMPLETER_SELECTOR);
       await completer.waitFor();
+      await page.waitForSelector('.jp-Completer-loading-bar');
+      await page.waitForSelector('.jp-Completer-loading-bar', {
+        state: 'detached'
+      });
+      const imageName = 'completer-with-doc-panel.png';
+      expect(await completer.screenshot()).toMatchSnapshot(imageName);
+    });
 
-      const imageName = 'completer.png';
-      // TODO: on first trigger types are not properly displayed, reference image will need updating
+    test('Token completions show up without running the cell when in the same cell', async ({
+      page
+    }) => {
+      await page.notebook.setCell(
+        0,
+        'code',
+        'option_1 = 1\n' +
+          'option_2 = lambda x: x\n' +
+          'option_3 = int\n' +
+          'option'
+      );
+      await page.notebook.enterCellEditingMode(0);
+      // move to the end of cell
+      await page.keyboard.press('PageDown');
+      await page.keyboard.press('End');
+
+      // we need to wait until the completer gets bound to the cell after entering it
+      await page.waitForTimeout(50);
+      await page.keyboard.press('Tab');
+      let completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      await page.keyboard.press('Escape');
+      await page.waitForTimeout(50);
+      await expect(completer).toBeHidden();
+      await page.keyboard.press('Tab');
+      completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      const imageName = 'token-completer.png';
       expect(await completer.screenshot()).toMatchSnapshot(imageName);
     });
 
@@ -49,10 +128,15 @@ test.describe('Completer', () => {
       await page.waitForTimeout(50);
       await page.keyboard.press('Tab');
 
-      const completer = page.locator(COMPLETER_SELECTOR);
+      let completer = page.locator(COMPLETER_SELECTOR);
       await completer.waitFor();
-
-      await page.keyboard.type('g', { delay: 10 });
+      await page.keyboard.press('Escape');
+      await page.waitForTimeout(50);
+      await expect(completer).toBeHidden();
+      await page.keyboard.press('Tab');
+      completer = page.locator(COMPLETER_SELECTOR);
+      await completer.waitFor();
+      await page.keyboard.type('g', { delay: 50 });
 
       const imageName = 'completer-filter.png';
       expect(await completer.screenshot()).toMatchSnapshot(imageName);
@@ -65,7 +149,7 @@ test.describe('Completer', () => {
 
       await page.click('button:has-text("Select")');
 
-      await page.waitForSelector('text=[ ]: ​ >> div[role="presentation"]');
+      await page.waitForSelector('[aria-label="Code Cell Content"]');
       await page.waitForSelector('text=| Idle');
 
       await page.keyboard.type('import getopt\ngetopt.');
@@ -79,7 +163,6 @@ test.describe('Completer', () => {
       await completer.waitFor();
 
       const imageName = 'completer-console.png';
-      // TODO: on first trigger types are not properly displayed, reference image will need updating
       expect(await completer.screenshot()).toMatchSnapshot(imageName);
     });
 
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-filter-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-filter-jupyterlab-linux.png
index fa384308fadb..947ed7ad7faf 100644
Binary files a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-filter-jupyterlab-linux.png and b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-filter-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-jupyterlab-linux.png
index e23198d28f13..840d72eceea9 100644
Binary files a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-jupyterlab-linux.png and b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-console-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-filter-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-filter-jupyterlab-linux.png
index 37f0f8c16469..17ca32f2bb2c 100644
Binary files a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-filter-jupyterlab-linux.png and b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-filter-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-jupyterlab-linux.png
index f43ac986eabd..b7c303c429de 100644
Binary files a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-jupyterlab-linux.png and b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/completer-with-doc-panel-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-with-doc-panel-jupyterlab-linux.png
new file mode 100644
index 000000000000..832ef417d1db
Binary files /dev/null and b/galata/test/jupyterlab/completer.test.ts-snapshots/completer-with-doc-panel-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/completer.test.ts-snapshots/token-completer-jupyterlab-linux.png b/galata/test/jupyterlab/completer.test.ts-snapshots/token-completer-jupyterlab-linux.png
new file mode 100644
index 000000000000..84a78caa7a38
Binary files /dev/null and b/galata/test/jupyterlab/completer.test.ts-snapshots/token-completer-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts b/galata/test/jupyterlab/contextmenu.test.ts
index 9b2333b96c08..c8d2ce8ba3c3 100644
--- a/galata/test/jupyterlab/contextmenu.test.ts
+++ b/galata/test/jupyterlab/contextmenu.test.ts
@@ -15,8 +15,8 @@ test.use({
 });
 
 test.describe('Application Context Menu', () => {
-  test.beforeAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
 
     // Create some dummy content
     await contents.uploadFile(
@@ -42,8 +42,8 @@ test.describe('Application Context Menu', () => {
     await page.filebrowser.openHomeDirectory();
   });
 
-  test.afterAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.deleteDirectory(tmpPath);
   });
 
@@ -110,7 +110,9 @@ test.describe('Application Context Menu', () => {
     expect(await page.menu.isAnyOpen()).toBe(true);
 
     await page.hover('text=Open With');
-    await page.waitForSelector('li[role="menuitem"]:has-text("Editor")');
+    await page.waitForSelector(
+      '.lm-Menu li[role="menuitem"]:has-text("Editor")'
+    );
 
     const imageName = `file-openwith.png`;
     // Get the last menu -> will be submenu
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-jupyterlab-linux.png
index 4d92b8926f33..7043e274882a 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-openwith-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-openwith-jupyterlab-linux.png
index f77c59b7b406..964589a31158 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-openwith-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/file-openwith-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/fileeditor-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/fileeditor-jupyterlab-linux.png
index 8849a3b16ed1..b7de06b2ec24 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/fileeditor-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/fileeditor-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/folder-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/folder-jupyterlab-linux.png
index de85c6cfd98b..04de1b8aec0a 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/folder-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/folder-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-code-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-code-jupyterlab-linux.png
index c290e9c9b4a9..ca8d5465c05a 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-code-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-code-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-md-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-md-jupyterlab-linux.png
index 54c3e2d65a94..7d494a2f38b0 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-md-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/notebook-md-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/running-notebook-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/running-notebook-jupyterlab-linux.png
index b2e516b6b371..79e01ea512fb 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/running-notebook-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/running-notebook-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-launcher-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-launcher-jupyterlab-linux.png
index 341f99147b63..2b4bf02d59d9 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-launcher-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-launcher-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-notebook-jupyterlab-linux.png b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-notebook-jupyterlab-linux.png
index da06f3337c11..084402dea7e1 100644
Binary files a/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-notebook-jupyterlab-linux.png and b/galata/test/jupyterlab/contextmenu.test.ts-snapshots/tab-notebook-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/debugger.test.ts b/galata/test/jupyterlab/debugger.test.ts
index 365d31841c9c..ee0713aa1b64 100644
--- a/galata/test/jupyterlab/debugger.test.ts
+++ b/galata/test/jupyterlab/debugger.test.ts
@@ -1,9 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
+import { expect, IJupyterLabPageFixture, test } from '@jupyterlab/galata';
+import { PromiseDelegate } from '@lumino/coreutils';
+import * as path from 'path';
 
-import { expect, test } from '@jupyterlab/galata';
+async function openNotebook(page: IJupyterLabPageFixture, tmpPath, fileName) {
+  await page.contents.uploadFile(
+    path.resolve(__dirname, `./notebooks/${fileName}`),
+    `${tmpPath}/${fileName}`
+  );
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+}
 
 test.describe('Debugger Tests', () => {
+  test.afterEach(async ({ page }) => {
+    await page.debugger.switchOff();
+    await page.waitForTimeout(500);
+    await page.notebook.close();
+  });
+
   test('Move Debugger to right', async ({ page }) => {
     await page.sidebar.moveTabToRight('jp-debugger-sidebar');
     expect(await page.sidebar.getTabPosition('jp-debugger-sidebar')).toBe(
@@ -15,4 +30,300 @@ test.describe('Debugger Tests', () => {
     await page.sidebar.openTab('jp-debugger-sidebar');
     expect(await page.sidebar.isTabOpen('jp-debugger-sidebar')).toBeTruthy();
   });
+
+  test('Start debug session', async ({ page, tmpPath }) => {
+    await openNotebook(page, tmpPath, 'code_notebook.ipynb');
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+
+    await page.notebook.waitForCellGutter(0);
+    await page.notebook.clickCellGutter(0, 2);
+
+    await page.debugger.waitForBreakPoints();
+    const breakpointsPanel = await page.debugger.getBreakPointsPanel();
+    expect(await breakpointsPanel.innerText()).toMatch(/ipykernel/);
+
+    const callStackPanel = await page.debugger.getCallStackPanel();
+    expect(await callStackPanel.innerText()).toBe('');
+
+    // don't add await, run will be blocked by the breakpoint
+    void page.notebook.run().then();
+
+    await page.debugger.waitForCallStack();
+    expect(await callStackPanel.innerText()).toMatch(/ipykernel/);
+
+    await page.debugger.waitForVariables();
+    const variablesPanel = await page.debugger.getVariablesPanel();
+    expect(await variablesPanel.screenshot()).toMatchSnapshot(
+      'start-debug-session-variables.png'
+    );
+
+    await page.debugger.waitForSources();
+    const sourcesPanel = await page.debugger.getSourcePanel();
+    expect(await sourcesPanel.screenshot()).toMatchSnapshot(
+      'start-debug-session-sources.png'
+    );
+  });
+
+  test('Rich variables inspector', async ({ page, tmpPath }) => {
+    await page.contents.uploadFile(
+      path.resolve(__dirname, './notebooks/WidgetArch.png'),
+      `${tmpPath}/WidgetArch.png`
+    );
+
+    const notebookName = 'image_notebook.ipynb';
+    const globalVar = 'global_img';
+    const localVar = 'local_img';
+
+    await openNotebook(page, tmpPath, notebookName);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+
+    await page.notebook.waitForCellGutter(0);
+    await page.notebook.clickCellGutter(0, 8);
+    await page.notebook.clickCellGutter(0, 11);
+
+    // don't add await, run will be blocked by the breakpoint
+    void page.notebook.run().then();
+    await page.debugger.waitForCallStack();
+
+    await page.debugger.waitForVariables();
+    const variablesPanel = await page.debugger.getVariablesPanel();
+    expect(await variablesPanel.screenshot()).toMatchSnapshot(
+      'image-debug-session-global-variables.png'
+    );
+
+    await page.debugger.renderVariable(globalVar);
+    let richVariableTab = await page.activity.getPanel(
+      `${globalVar} - ${notebookName}`
+    );
+    expect(await richVariableTab.screenshot()).toMatchSnapshot(
+      'image-debug-session-global-rich-variable.png'
+    );
+
+    await page.activity.closePanel(`${globalVar} - ${notebookName}`);
+
+    await page.locator('button[title="Continue (F9)"]').click();
+    await expect(variablesPanel).not.toContain('ul');
+    await page.debugger.waitForVariables();
+
+    await page.debugger.renderVariable(localVar);
+    richVariableTab = await page.activity.getPanel(
+      `${localVar} - ${notebookName}`
+    );
+    expect(await richVariableTab.screenshot()).toMatchSnapshot(
+      'image-debug-session-local-rich-variable.png'
+    );
+  });
+
+  test('Start debug session (Script)', async ({ page, tmpPath }) => {
+    await openNotebook(page, tmpPath, 'code_script.py');
+
+    await page.click('div.jp-FileEditor', {
+      button: 'right'
+    });
+
+    const menu = await page.menu.getOpenMenu();
+    await (await menu.$('[data-command="fileeditor:create-console"]')).click();
+
+    await page.waitForSelector('.jp-Dialog-body');
+    const select = await page.$('.jp-Dialog-body >> select');
+    const option = await select.$('option:has-text("ipykernel")');
+    await select.selectOption(option);
+    await page.click('div.jp-Dialog-content >> button:has-text("Select")');
+
+    // activate the script tab
+    await page.click('.jp-FileEditor');
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+    await page.notebook.waitForCodeGutter();
+    await page.notebook.clickCodeGutter(2);
+
+    await page.debugger.waitForBreakPoints();
+    const breakpointsPanel = await page.debugger.getBreakPointsPanel();
+    expect(await breakpointsPanel.innerText()).toMatch(/ipykernel/);
+
+    const callStackPanel = await page.debugger.getCallStackPanel();
+    expect(await callStackPanel.innerText()).toBe('');
+
+    // don't add await, run will be blocked by the breakpoint
+    await page.menu.clickMenuItem('Run>Run All Code');
+
+    await page.debugger.waitForCallStack();
+    expect(await callStackPanel.innerText()).toMatch(/ipykernel/);
+
+    await page.debugger.waitForVariables();
+    const variablesPanel = await page.debugger.getVariablesPanel();
+    expect(await variablesPanel.screenshot()).toMatchSnapshot(
+      'start-debug-session-script-variables.png'
+    );
+
+    await page.debugger.waitForSources();
+    const sourcesPanel = await page.debugger.getSourcePanel();
+    expect(await sourcesPanel.screenshot()).toMatchSnapshot(
+      'start-debug-session-script-sources.png'
+    );
+  });
+});
+
+test.describe('Debugger Variables', () => {
+  test.use({ autoGoto: false });
+
+  const copyToGlobalsRequest = new PromiseDelegate<void>();
+
+  test.beforeEach(async ({ page, tmpPath }) => {
+    // Listener to the websocket, to catch the 'copyToGlobals' request.
+    page.on('websocket', ws => {
+      ws.on('framesent', event => {
+        let message = event.payload;
+        if (Buffer.isBuffer(event.payload)) {
+          message = event.payload.toString('binary');
+        }
+        if (message.includes('copyToGlobals')) {
+          copyToGlobalsRequest.resolve();
+        }
+      });
+    });
+
+    // Initialize the debugger.
+    await page.goto(`tree/${tmpPath}`);
+    await createNotebook(page);
+
+    await page.debugger.switchOn();
+    await page.waitForCondition(() => page.debugger.isOpen());
+
+    await setBreakpoint(page);
+  });
+
+  test('Copy to globals should work only for local variables', async ({
+    page
+  }) => {
+    // Kernel supports copyToGlobals.
+    await page.evaluate(async () => {
+      const debuggerService = await window.galata.getPlugin(
+        '@jupyterlab/debugger-extension:service'
+      );
+      debuggerService!.model.supportCopyToGlobals = true;
+    });
+
+    // Don't wait as it will be blocked.
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint and the local variables to be displayed.
+    await page.debugger.waitForCallStack();
+
+    // Expect the copy entry to be in the menu.
+    await page.locator('select[aria-label="Scope"]').selectOption('Locals');
+    await page.click('.jp-DebuggerVariables-body li span:text("local_var")', {
+      button: 'right'
+    });
+    await expect(
+      page.locator('.lm-Menu-content li div:text("Copy Variable to Globals")')
+    ).toHaveCount(1);
+
+    await expect(
+      page.locator('.lm-Menu-content li div:text("Copy Variable to Globals")')
+    ).toBeVisible();
+
+    // Request the copy of the local variable to globals scope.
+    await page.click(
+      '.lm-Menu-content li[data-command="debugger:copy-to-globals"]'
+    );
+
+    // Wait for the request to be sent.
+    await copyToGlobalsRequest.promise;
+
+    // Expect the context menu for global variables to not have the 'copy' entry.
+    await page.locator('select[aria-label="Scope"]').selectOption('Globals');
+    await page.click(`.jp-DebuggerVariables-body li span:text("global_var")`, {
+      button: 'right'
+    });
+    await expect(page.locator('.lm-Menu-content')).toBeVisible();
+    await expect(
+      page.locator('.lm-Menu-content li div:text("Copy Variable to Globals")')
+    ).toHaveCount(0);
+  });
+
+  test('Copy to globals not available from kernel', async ({ page }) => {
+    // Kernel doesn't support copyToGlobals.
+    await page.evaluate(async () => {
+      const debuggerService = await window.galata.getPlugin(
+        '@jupyterlab/debugger-extension:service'
+      );
+      debuggerService!.model.supportCopyToGlobals = false;
+    });
+
+    // Don't wait as it will be blocked.
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint and the local variables to be displayed.
+    await page.debugger.waitForCallStack();
+
+    await page.locator('select[aria-label="Scope"]').selectOption('Locals');
+
+    // Expect the menu entry not to be visible.
+    await page.click('.jp-DebuggerVariables-body li span:text("local_var")', {
+      button: 'right'
+    });
+    await expect(
+      page.locator('.lm-Menu-content li div:text("Copy Variable to Globals")')
+    ).not.toBeVisible();
+
+    // Close the contextual menu
+    await page.keyboard.press('Escape');
+    await expect(
+      page.locator('li.lm-Menu-item[data-command="debugger:copy-to-clipboard"]')
+    ).toHaveCount(0);
+  });
+
+  test('Copy to clipboard', async ({ page }) => {
+    // Don't wait as it will be blocked.
+    void page.notebook.runCell(1);
+
+    // Wait to be stopped on the breakpoint and the local variables to be displayed.
+    await page.debugger.waitForCallStack();
+
+    // Copy value to clipboard
+    await page.locator('select[aria-label="Scope"]').selectOption('Locals');
+    await page.click('.jp-DebuggerVariables-body li span:text("local_var")', {
+      button: 'right'
+    });
+    await page.locator('.lm-Menu-itemLabel:text("Copy to Clipboard")').click();
+    expect(await page.evaluate(() => navigator.clipboard.readText())).toBe('3');
+
+    // Copy to clipboard disabled for variables with empty value
+    await page.locator('select[aria-label="Scope"]').selectOption('Globals');
+    await page
+      .locator('.jp-DebuggerVariables-body :text("special variables")')
+      .click({ button: 'right' });
+    await expect(
+      page.locator('li.lm-Menu-item[data-command="debugger:copy-to-clipboard"]')
+    ).toHaveAttribute('aria-disabled', 'true');
+
+    // Close the contextual menu
+    await page.keyboard.press('Escape');
+    await expect(
+      page.locator('li.lm-Menu-item[data-command="debugger:copy-to-clipboard"]')
+    ).toHaveCount(0);
+  });
 });
+
+async function createNotebook(page: IJupyterLabPageFixture) {
+  await page.notebook.createNew();
+
+  await page.waitForSelector('text=Python 3 (ipykernel) | Idle');
+}
+
+async function setBreakpoint(page: IJupyterLabPageFixture) {
+  await page.notebook.setCell(
+    0,
+    'code',
+    'global_var = 1\ndef add(a, b):\nlocal_var = a + b\nreturn local_var'
+  );
+  await page.notebook.run();
+  await page.notebook.addCell('code', 'result = add(1, 2)\nprint(result)');
+
+  await page.notebook.clickCellGutter(0, 4);
+}
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diff --git a/galata/test/jupyterlab/general.test.ts-snapshots/launch-jupyterlab-linux.png b/galata/test/jupyterlab/general.test.ts-snapshots/launch-jupyterlab-linux.png
index 8836cdcdfbbc..72c7f0191553 100644
Binary files a/galata/test/jupyterlab/general.test.ts-snapshots/launch-jupyterlab-linux.png and b/galata/test/jupyterlab/general.test.ts-snapshots/launch-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/general.test.ts-snapshots/simple-mode-jupyterlab-linux.png b/galata/test/jupyterlab/general.test.ts-snapshots/simple-mode-jupyterlab-linux.png
index 52ca3f6a8b11..9c2ce8903d11 100644
Binary files a/galata/test/jupyterlab/general.test.ts-snapshots/simple-mode-jupyterlab-linux.png and b/galata/test/jupyterlab/general.test.ts-snapshots/simple-mode-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/help.test.ts b/galata/test/jupyterlab/help.test.ts
index f41248dda436..75d12f315b86 100644
--- a/galata/test/jupyterlab/help.test.ts
+++ b/galata/test/jupyterlab/help.test.ts
@@ -28,5 +28,5 @@ test('Switch back and forth to reference page', async ({ page }) => {
 
   await expect(
     page.locator('.jp-MarkdownCell .jp-InputArea-editor')
-  ).toHaveText(`xxxxxxxxxx ${cellContent}`);
+  ).toHaveText(cellContent);
 });
diff --git a/galata/test/jupyterlab/html-viewer.test.ts b/galata/test/jupyterlab/html-viewer.test.ts
new file mode 100644
index 000000000000..6d82f51a558e
--- /dev/null
+++ b/galata/test/jupyterlab/html-viewer.test.ts
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { expect, test } from '@jupyterlab/galata';
+
+test.describe('HTML Viewer', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.menu.clickMenuItem('File>New>Text File');
+
+    await page.getByRole('main').getByRole('textbox').fill(`<html>
+<body>
+    <div style="height: 300px;"></div>
+    <a href="https://github.com" target="_blank">GitHub</a>
+</body>
+</html>`);
+
+    await page.menu.clickMenuItem('File>Save Text');
+
+    await page.getByPlaceholder('File name').fill('test.html');
+    await page.getByRole('button', { name: 'Rename' }).click();
+
+    await page.getByRole('listitem', { name: 'test.html' }).dblclick();
+  });
+
+  test('should notify links are blocked for untrusted file', async ({
+    page
+  }) => {
+    const frame = page.frame({ url: url => url.protocol == 'blob:' });
+    await frame!.getByRole('link', { name: 'GitHub' }).hover();
+
+    const warningCount = await frame!.evaluate(() => {
+      let count = 0;
+      for (const link of document.querySelectorAll('a')) {
+        count +=
+          window.getComputedStyle(link, '::after').content ==
+          '"Action disabled as the file is not trusted."'
+            ? 1
+            : 0;
+      }
+      return count;
+    });
+
+    expect(warningCount).toEqual(1);
+  });
+
+  test('should allow links for trusted file', async ({ page }) => {
+    await page.getByRole('button', { name: 'Trust HTML' }).click();
+    const frame = page.frame({ url: url => url.protocol == 'blob:' });
+    await frame!.getByRole('link', { name: 'GitHub' }).hover();
+
+    const warningCount = await frame!.evaluate(() => {
+      let count = 0;
+      for (const link of document.querySelectorAll('a')) {
+        count +=
+          window.getComputedStyle(link, '::after').content ==
+          '"Action disabled as the file is not trusted."'
+            ? 1
+            : 0;
+      }
+      return count;
+    });
+
+    expect(warningCount).toEqual(0);
+  });
+});
diff --git a/galata/test/jupyterlab/kernel.test.ts b/galata/test/jupyterlab/kernel.test.ts
new file mode 100644
index 000000000000..12d8bbf633ee
--- /dev/null
+++ b/galata/test/jupyterlab/kernel.test.ts
@@ -0,0 +1,140 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+test.describe('Kernel', () => {
+  test.describe('Notebook', () => {
+    test('Should not ask kernel when creating notebook from launcher', async ({
+      page
+    }) => {
+      await Promise.all([
+        page
+          .getByRole('tabpanel', { name: 'Launcher' })
+          .waitFor({ state: 'detached' }),
+        page.getByTitle('Python 3 (ipykernel)').nth(1).click()
+      ]);
+
+      await expect.soft(page.locator('.jp-Dialog')).toHaveCount(0);
+
+      await expect(page.getByTitle('Switch kernel')).toHaveText(
+        'Python 3 (ipykernel)'
+      );
+    });
+
+    test('Should remember kernel auto start for notebook', async ({ page }) => {
+      await page.menu.clickMenuItem('File>New>Notebook');
+
+      // Open a notebook without selecting a kernel
+      await page
+        .locator('.jp-Dialog')
+        .getByRole('button', { name: 'No Kernel' })
+        .click();
+
+      await expect
+        .soft(page.getByTitle('Switch kernel'))
+        .toHaveText('No Kernel');
+
+      await Promise.all([
+        page
+          .getByRole('tab', { name: 'Untitled.ipynb' })
+          .waitFor({ state: 'detached' }),
+        page.menu.clickMenuItem('File>Close Tab')
+      ]);
+
+      // Open the same notebook selecting and turning on auto start
+      await page.filebrowser.open('Untitled.ipynb');
+
+      await page
+        .locator('.jp-Dialog')
+        .getByText('Always start the preferred kernel')
+        .click();
+      await page
+        .locator('.jp-Dialog')
+        .getByRole('button', { name: 'Select' })
+        .click();
+
+      await expect
+        .soft(page.getByTitle('Switch kernel'))
+        .toHaveText('Python 3 (ipykernel)');
+
+      await page.menu.clickMenuItem('File>Close and Shut Down Notebook');
+
+      await Promise.all([
+        page
+          .getByRole('tab', { name: 'Untitled.ipynb' })
+          .waitFor({ state: 'detached' }),
+        page.locator('.jp-Dialog').getByRole('button', { name: 'Ok' }).click()
+      ]);
+
+      // Open the same notebook and check it turns on the kernel
+      await page.filebrowser.open('Untitled.ipynb');
+
+      await expect(page.getByTitle('Switch kernel')).toHaveText(
+        'Python 3 (ipykernel)'
+      );
+    });
+
+    test('Should request kernel selection when executing a cell for notebook without kernel', async ({
+      page
+    }) => {
+      await page.menu.clickMenuItem('File>New>Notebook');
+
+      // Open a notebook without selecting a kernel
+      await page
+        .locator('.jp-Dialog')
+        .getByRole('button', { name: 'No Kernel' })
+        .click();
+
+      await expect
+        .soft(page.getByTitle('Switch kernel'))
+        .toHaveText('No Kernel');
+
+      // Request cell execution
+      await page.menu.clickMenuItem('Run>Run Selected Cell');
+
+      await page
+        .locator('.jp-Dialog')
+        .getByRole('button', { name: 'Select Kernel', exact: true })
+        .click();
+
+      await expect(page.getByTitle('Switch kernel')).toHaveText(
+        'Python 3 (ipykernel)'
+      );
+    });
+  });
+
+  test.describe('Console', () => {
+    test('Should not ask kernel when creating console from launcher', async ({
+      page
+    }) => {
+      await Promise.all([
+        page
+          .getByRole('tabpanel', { name: 'Launcher' })
+          .waitFor({ state: 'detached' }),
+        page.getByTitle('Python 3 (ipykernel)').nth(2).click()
+      ]);
+
+      await expect.soft(page.locator('.jp-Dialog')).toHaveCount(0);
+
+      await expect(page.getByTitle('Change kernel for Console 1')).toHaveText(
+        'Python 3 (ipykernel) | Idle'
+      );
+    });
+
+    test('Should ask for kernel when creating console from menu', async ({
+      page
+    }) => {
+      await page.menu.clickMenuItem('File>New>Console');
+
+      await page
+        .locator('.jp-Dialog')
+        .getByRole('button', { name: 'Select Kernel', exact: true })
+        .click();
+
+      await expect(page.getByTitle('Change kernel for Console 1')).toHaveText(
+        'Python 3 (ipykernel) | Idle'
+      );
+    });
+  });
+});
diff --git a/galata/test/jupyterlab/menus.test.ts b/galata/test/jupyterlab/menus.test.ts
index 4863943c450e..f8ddc8188042 100644
--- a/galata/test/jupyterlab/menus.test.ts
+++ b/galata/test/jupyterlab/menus.test.ts
@@ -2,28 +2,29 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { expect, test } from '@jupyterlab/galata';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
 
 const menuPaths = [
   'File',
   'File>New',
   'Edit',
   'View',
+  'View>Appearance',
   'Run',
   'Kernel',
   'Tabs',
   'Settings',
   'Settings>Theme',
   'Settings>Console Run Keystroke',
-  'Settings>Text Editor Key Map',
   'Settings>Text Editor Theme',
   'Settings>Text Editor Indentation',
   'Settings>Terminal Theme',
   'Help'
 ];
 
-test.use({ autoGoto: false });
-
 test.describe('General Tests', () => {
+  test.use({ autoGoto: false });
+
   menuPaths.forEach(menuPath => {
     test(`Open menu item ${menuPath}`, async ({ page }) => {
       await page.goto();
@@ -41,8 +42,7 @@ test.describe('General Tests', () => {
       if (request.method() === 'GET') {
         return route.fulfill({
           status: 200,
-          body:
-            '{"data": {"en": {"displayName": "English", "nativeName": "English"}}, "message": ""}'
+          body: '{"data": {"en": {"displayName": "English", "nativeName": "English"}}, "message": ""}'
         });
       } else {
         return route.continue();
@@ -66,3 +66,113 @@ test.describe('General Tests', () => {
     expect(await page.menu.isAnyOpen()).toEqual(false);
   });
 });
+
+const EXPECTED_MISSING_COMMANDS_MAINMENU = ['hub:control-panel', 'hub:logout'];
+
+test('Main menu definition must target an valid command', async ({ page }) => {
+  const [menus, commands] = await page.evaluate(async () => {
+    const settings = await window.galata.getPlugin(
+      '@jupyterlab/apputils-extension:settings'
+    );
+    const menus = await settings.get(
+      '@jupyterlab/mainmenu-extension:plugin',
+      'menus'
+    );
+    const commandIds = window.jupyterapp.commands.listCommands();
+
+    return Promise.resolve([
+      menus.composite as ISettingRegistry.IMenu[],
+      commandIds
+    ]);
+  });
+
+  commands.push(...EXPECTED_MISSING_COMMANDS_MAINMENU);
+
+  const missingCommands = menus.reduce((agg, current) => {
+    const items =
+      current.items?.reduce((agg, item) => {
+        const testedItem = reduceItem(item, commands);
+        if (testedItem !== null) {
+          agg.push(testedItem);
+        }
+        return agg;
+      }, []) ?? [];
+    if (items.length > 0) {
+      const r = {};
+      r[current.label ?? 'unknown'] = items;
+      agg.push(r);
+    }
+
+    return agg;
+  }, []);
+
+  expect(missingCommands).toEqual([]);
+});
+
+test('Context menu definition must target an valid command', async ({
+  page
+}) => {
+  const [items, commands] = await page.evaluate(async () => {
+    const settings = await window.galata.getPlugin(
+      '@jupyterlab/apputils-extension:settings'
+    );
+    const items = await settings.get(
+      '@jupyterlab/application-extension:context-menu',
+      'contextMenu'
+    );
+    const commandIds = window.jupyterapp.commands.listCommands();
+
+    return Promise.resolve([
+      items.composite as ISettingRegistry.IMenuItem[],
+      commandIds
+    ]);
+  });
+
+  commands.push(...EXPECTED_MISSING_COMMANDS_MAINMENU);
+
+  const missingCommands = items.reduce((agg, item) => {
+    const testedItem = reduceItem(item, commands);
+    if (testedItem !== null) {
+      agg.push(testedItem);
+    }
+    return agg;
+  }, []);
+
+  expect(missingCommands).toEqual([]);
+});
+
+function reduceItem(
+  item: ISettingRegistry.IMenuItem,
+  commands: string[]
+):
+  | ISettingRegistry.IMenuItem
+  | { [id: string]: ISettingRegistry.IMenuItem[] }
+  | null {
+  switch (item.type ?? 'command') {
+    case 'command':
+      if (!commands.includes(item.command)) {
+        return item;
+      }
+      break;
+    case 'submenu': {
+      const items =
+        item.submenu?.items?.reduce((agg, item) => {
+          const testedItem = reduceItem(item, commands);
+          if (testedItem !== null) {
+            agg.push(testedItem);
+          }
+          return agg;
+        }, []) ?? [];
+      if (items.length === 0) {
+        return null;
+      } else {
+        const r = {};
+        r[item.submenu?.label ?? 'unknown'] = items;
+        return r;
+      }
+    }
+    default:
+      break;
+  }
+  return null;
+}
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diff --git a/galata/test/jupyterlab/metadataform.test.ts b/galata/test/jupyterlab/metadataform.test.ts
new file mode 100644
index 000000000000..cd78939010ae
--- /dev/null
+++ b/galata/test/jupyterlab/metadataform.test.ts
@@ -0,0 +1,718 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import * as path from 'path';
+import { Page } from '@playwright/test';
+import {
+  expect,
+  galata,
+  IJupyterLabPageFixture,
+  test
+} from '@jupyterlab/galata';
+import { ObservableJSON } from '@jupyterlab/observables';
+
+const nbFile = 'code_notebook.ipynb';
+test.use({
+  autoGoto: false,
+  tmpPath: 'metadataform-test',
+  waitForApplication: async ({ baseURL }, use, testInfo) => {
+    const simpleWait = async (page: Page): Promise<void> => {
+      await page.waitForSelector('#jupyterlab-splash', {
+        state: 'detached'
+      });
+    };
+    void use(simpleWait);
+  }
+});
+
+test.beforeAll(async ({ request, tmpPath }) => {
+  const contents = galata.newContentsHelper(request);
+  await contents.uploadFile(
+    path.resolve(__dirname, `./notebooks/${nbFile}`),
+    `${tmpPath}/${nbFile}`
+  );
+});
+
+test.afterAll(async ({ request, tmpPath }) => {
+  const contents = galata.newContentsHelper(request);
+  await contents.deleteDirectory(tmpPath);
+});
+
+/**
+ * Activate notebook tools side bar.
+ */
+async function activatePropertyInspector(page: IJupyterLabPageFixture) {
+  if ((await page.locator('.jp-NotebookTools').count()) > 0) {
+    if (await page.locator('.jp-NotebookTools').isVisible()) {
+      return;
+    }
+  }
+
+  const widgetButton = page.locator(
+    ".lm-TabBar-tab[title='Property Inspector']"
+  );
+  const buttonPosition = await widgetButton.boundingBox();
+
+  if (buttonPosition === null)
+    throw new Error(
+      'Cannot get the position of the property inspector button.'
+    );
+
+  await page.mouse.click(
+    buttonPosition.x + buttonPosition.width / 2,
+    buttonPosition.y + buttonPosition.height / 2
+  );
+
+  await expect(page.locator('.jp-NotebookTools')).toBeVisible();
+}
+
+/**
+ * Expand the form (open notebook tools if necessary)
+ */
+async function openForm(
+  page: IJupyterLabPageFixture,
+  label = 'Extension metadata'
+) {
+  await activatePropertyInspector(page);
+
+  const form = page.locator('.jp-NotebookTools .jp-Collapse', {
+    hasText: label
+  });
+  if (form.locator('.jp-Collapse-contents.lm-mod-hidden')) {
+    await form.click();
+    await expect(
+      form.locator('.jp-Collapse-contents.lm-mod-hidden')
+    ).toHaveCount(0);
+  }
+  return form;
+}
+
+/**
+ * Return the formGroup DOM element after expanding the form.
+ */
+async function getFormGroup(page: IJupyterLabPageFixture) {
+  const form = await openForm(page);
+  return {
+    form: form,
+    formGroup: form.locator(
+      '.jp-Collapse-contents .jp-MetadataForm fieldset > .form-group'
+    )
+  };
+}
+
+/*
+ * Get the cell metadata
+ */
+async function getCellMetadata(
+  page: IJupyterLabPageFixture,
+  cellNumber: number = 0
+): Promise<ObservableJSON> {
+  return await page.evaluate(cellNum => {
+    let nb = window.jupyterapp.shell.currentWidget;
+    return nb.model.cells.get(cellNum).metadata;
+  }, cellNumber);
+}
+
+/*
+ * Get the cell metadata
+ */
+async function getNotebookMetadata(
+  page: IJupyterLabPageFixture
+): Promise<ObservableJSON> {
+  return await page.evaluate(() => {
+    let nb = window.jupyterapp.shell.currentWidget;
+    return nb.model.metadata;
+  });
+}
+
+test.describe('Required metadata', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              required: ['/basic-metadata'],
+              properties: {
+                '/basic-metadata': {
+                  title: 'Basic metadata',
+                  description: 'Basic metadata description',
+                  type: 'string'
+                }
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should display the form', async ({ page, baseURL, tmpPath }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Activate the property inspector.
+    await activatePropertyInspector(page);
+
+    // Retrieves the form from its header's text, it should be collapsed.
+    const form = page.locator('.jp-NotebookTools .jp-Collapse', {
+      hasText: 'Extension metadata'
+    });
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-collapsed-form.png'
+    );
+    await expect(
+      form.locator('.jp-Collapse-contents.lm-mod-hidden')
+    ).toHaveCount(1);
+
+    // Expand the form.
+    await form.click();
+    await expect(
+      form.locator('.jp-Collapse-contents.lm-mod-hidden')
+    ).toHaveCount(0);
+
+    // Get the formGroup (form content).
+    const formGroup = form.locator(
+      '.jp-Collapse-contents .jp-MetadataForm fieldset > .form-group'
+    );
+
+    // There should be only one field in formGroup, with correct title and description.
+    await expect(formGroup).toHaveCount(1);
+    await expect(
+      formGroup.locator('.jp-FormGroup-compactTitle > .jp-FormGroup-fieldLabel')
+    ).toHaveText('Basic metadata');
+    await expect(
+      formGroup.locator(
+        '.jp-FormGroup-compactTitle > .jp-FormGroup-description'
+      )
+    ).toHaveText('Basic metadata description');
+  });
+
+  test('should fill metadata and display errors', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { form, formGroup } = await getFormGroup(page);
+
+    // Error should be displayed as required field is empty.
+    await expect(formGroup.locator('.validationErrors')).not.toBeEmpty();
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-required-missing.png'
+    );
+
+    // Relevant metadata should be empty.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['basic-metadata']).toBeUndefined();
+
+    // Filling the form.
+    await formGroup.locator('input').fill('abc');
+
+    // Metadata should be filled, and error not displayed anymore.
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['basic-metadata']).toBe('abc');
+    await expect(formGroup.locator('.validationErrors')).toBeEmpty();
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-required-filled.png'
+    );
+  });
+});
+
+test.describe('Nested metadata', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/level1/nested': {
+                  title: 'Nested metadata 1',
+                  type: 'integer'
+                },
+                '/level1/level2/nested': {
+                  title: 'Nested metadata 2',
+                  type: 'integer'
+                }
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should fill nested metadata and remove the all tree if empty value', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { formGroup } = await getFormGroup(page);
+
+    // Metadata should be empty.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']).toBeUndefined();
+
+    // Replace the default value by 0, should write in metadata.
+    await formGroup.locator('input').last().fill('0');
+
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']['level2']['nested']).toBe(0);
+
+    // Empty the field, should remove the metadata tree.
+    await formGroup.locator('input').last().fill('');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']).toBeUndefined();
+  });
+
+  test('should remove only the empty metadata', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { formGroup } = await getFormGroup(page);
+
+    // Metadata should be empty.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']).toBeUndefined();
+
+    // Set the first level nested metadata.
+    await formGroup.locator('input').first().fill('1');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']['nested']).toBe(1);
+    expect(cellMetadata['level1']['level2']).toBeUndefined();
+
+    // Set the second level nested metadata.
+    await formGroup.locator('input').last().fill('1');
+
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']['level2']['nested']).toBe(1);
+
+    // If the value of level2 is deleted, only the level2 metadata should be removed.
+    await formGroup.locator('input').last().fill('');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['level1']['nested']).toBe(1);
+    expect(cellMetadata['level1']['level2']).toBeUndefined();
+  });
+});
+
+test.describe('Default metadata without "showModified" flag', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/default-written': {
+                  title: 'Default written',
+                  type: 'integer',
+                  default: 1
+                },
+                '/default-not-written': {
+                  title: 'Default not written',
+                  type: 'integer',
+                  default: 1
+                }
+              }
+            },
+            metadataOptions: {
+              '/default-not-written': {
+                writeDefault: false
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should not fill metadata with "writeDefault" flag to false', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { formGroup } = await getFormGroup(page);
+
+    // Metadata should contains written default value.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-written']).toBe(1);
+
+    // Empty value should remove the metadata.
+    await formGroup.locator('input').first().fill('');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-written']).toBeUndefined();
+
+    // Fill the first one with default should be written in metadata.
+    await formGroup.locator('input').first().fill('1');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-written']).toBe(1);
+
+    // Fill the second one with non default value should write metadata.
+    await formGroup.locator('input').last().fill('0');
+
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-not-written']).toBe(0);
+
+    // Fill the second one with default value should remove the metadata.
+    await formGroup.locator('input').last().fill('1');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-not-written']).toBeUndefined();
+  });
+
+  test('should not display the modified field', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { formGroup } = await getFormGroup(page);
+
+    // Metadata should contains written default value.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-written']).toBe(1);
+
+    // Fill the first one with default should be written in metadata.
+    await formGroup.locator('input').first().fill('2');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['default-written']).toBe(2);
+
+    await expect(formGroup.locator('.jp-FormGroup-default')).toHaveCount(0);
+  });
+});
+
+test.describe('Default metadata with "showModified" flag', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            showModified: true,
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/value-with-default': {
+                  title: 'value with default',
+                  type: 'integer',
+                  default: 1
+                }
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should display the modified field', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { formGroup } = await getFormGroup(page);
+
+    // Metadata should contains the default value.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['value-with-default']).toBe(1);
+
+    // Fill the field with non default value should display that value is different from default.
+    await formGroup.locator('input').first().fill('2');
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['value-with-default']).toBe(2);
+    await expect(formGroup.locator('.jp-FormGroup-default')).toHaveCount(1);
+    await expect(formGroup.locator('.jp-FormGroup-default')).toContainText('1');
+  });
+});
+
+test.describe('Notebook level and cell type metadata', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/cell-metadata': {
+                  title: 'Cell metadata',
+                  type: 'string'
+                },
+                '/nb-nested/nb-metadata': {
+                  title: 'Notebook metadata',
+                  type: 'string'
+                }
+              }
+            },
+            metadataOptions: {
+              '/nb-nested/nb-metadata': {
+                metadataLevel: 'notebook'
+              },
+              '/cell-metadata': {
+                cellTypes: ['code']
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should manage cell and notebook metadata in the same form', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM
+    const { form, formGroup } = await getFormGroup(page);
+
+    // There should be 2 fields displayed.
+    await expect(formGroup).toHaveCount(2);
+    expect(await form.screenshot()).toMatchSnapshot('metadata-level.png');
+
+    // Metadata should be empty.
+    let cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['cell-metadata']).toBeUndefined();
+    let nbMetadata = await getNotebookMetadata(page);
+    expect(nbMetadata['nb-nested']).toBeUndefined();
+
+    // Fill the first level nested metadata.
+    await formGroup.locator('input').first().fill('Cell input');
+    await formGroup.locator('input').last().fill('Notebook input');
+
+    // Metadata should be filled at their correct level.
+    cellMetadata = await getCellMetadata(page, 0);
+    expect(cellMetadata['cell-metadata']).toBe('Cell input');
+    expect(cellMetadata['nb-nested']).toBeUndefined();
+    nbMetadata = await getNotebookMetadata(page);
+    expect(nbMetadata['nb-nested']['nb-metadata']).toBe('Notebook input');
+    expect(nbMetadata['cell-metadata']).toBeUndefined();
+  });
+
+  test('should not display field for non relevant cell type', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    let form, formGroup;
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Create a Markdown cell and select it.
+    await page.notebook.addCell('markdown', 'Markdown cell');
+    await page.notebook.selectCells((await page.notebook.getCellCount()) - 1);
+    ({ form, formGroup } = await getFormGroup(page));
+    await expect(formGroup).toHaveCount(1);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-wrong-cell-type.png'
+    );
+
+    // Create a raw cell and select it.
+    await page.notebook.addCell('raw', 'Raw cell');
+    await page.notebook.selectCells((await page.notebook.getCellCount()) - 1);
+    ({ form, formGroup } = await getFormGroup(page));
+    await expect(formGroup).toHaveCount(1);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-wrong-cell-type.png'
+    );
+
+    // Select the code cell again to retrieve full form.
+    await page.notebook.selectCells(0);
+    ({ form, formGroup } = await getFormGroup(page));
+    await expect(formGroup).toHaveCount(2);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-correct-cell-type.png'
+    );
+  });
+});
+
+test.describe('Conditional metadata', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/basic-metadata': {
+                  title: 'Basic metadata',
+                  type: 'string',
+                  enum: ['not met', 'met']
+                }
+              },
+              allOf: [
+                {
+                  if: {
+                    properties: {
+                      '/basic-metadata': {
+                        const: 'met'
+                      }
+                    }
+                  },
+                  then: {
+                    properties: {
+                      '/conditional-field': {
+                        title: 'conditional field',
+                        type: 'string'
+                      }
+                    }
+                  }
+                }
+              ]
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('display conditional field', async ({ page, baseURL, tmpPath }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM
+    const { form, formGroup } = await getFormGroup(page);
+
+    // There should be 1 field displayed as condition is not met.
+    await formGroup.locator('select').first().selectOption('not met');
+    await expect(formGroup).toHaveCount(1);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-condition-not-met.png'
+    );
+
+    // Met the condition, then the second field should be displayed too.
+    await formGroup.locator('select').first().selectOption('met');
+    await expect(formGroup).toHaveCount(2);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-condition-met.png'
+    );
+
+    // If the condition is not met, only one field should be displayed.
+    await formGroup.locator('select').first().selectOption('not met');
+    await expect(formGroup).toHaveCount(1);
+    expect(await form.screenshot()).toMatchSnapshot(
+      'metadata-condition-not-met.png'
+    );
+  });
+});
+
+test.describe('UISchema', () => {
+  test.use({
+    mockSettings: {
+      '@jupyterlab/metadataform-extension:metadataforms': {
+        metadataforms: [
+          {
+            id: 'Extension-metadata',
+            label: 'Extension metadata',
+            metadataSchema: {
+              type: 'object',
+              properties: {
+                '/metadata1': {
+                  type: 'string'
+                },
+                '/metadata2': {
+                  title: 'Metadata 2',
+                  type: 'integer'
+                }
+              }
+            },
+            uiSchema: {
+              'ui:order': ['/metadata2', '/metadata1'],
+              '/metadata1': {
+                'ui:title': 'Metadata 1 title'
+              }
+            }
+          }
+        ]
+      }
+    }
+  });
+
+  test('should respect the order of the fields', async ({
+    page,
+    baseURL,
+    tmpPath
+  }) => {
+    // Open the Notebook.
+    await page.goto(baseURL);
+    await page.notebook.openByPath(`${tmpPath}/${nbFile}`);
+
+    // Open and get the form DOM.
+    const { form, formGroup } = await getFormGroup(page);
+
+    // The order of the fields should be respected.
+    expect(await form.screenshot()).toMatchSnapshot('metadata-ui-schema.png');
+
+    await expect(
+      formGroup
+        .locator('.jp-FormGroup-compactTitle > .jp-FormGroup-fieldLabel')
+        .first()
+    ).toHaveText('Metadata 2');
+    await expect(formGroup.locator('input').first()).toHaveAttribute(
+      'type',
+      'number'
+    );
+
+    // Should display the title and description from uiSchema.
+    await expect(
+      formGroup
+        .locator('.jp-FormGroup-compactTitle > .jp-FormGroup-fieldLabel')
+        .last()
+    ).toHaveText('Metadata 1 title');
+    await expect(formGroup.locator('input').last()).toHaveAttribute(
+      'type',
+      'text'
+    );
+  });
+});
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-collapsed-form-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-collapsed-form-jupyterlab-linux.png
new file mode 100644
index 000000000000..6462562521e4
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-collapsed-form-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-met-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-met-jupyterlab-linux.png
new file mode 100644
index 000000000000..aaf069fe9e9d
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-met-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-not-met-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-not-met-jupyterlab-linux.png
new file mode 100644
index 000000000000..f77791214ccc
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-condition-not-met-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-correct-cell-type-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-correct-cell-type-jupyterlab-linux.png
new file mode 100644
index 000000000000..ccf92606e8b2
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-correct-cell-type-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-level-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-level-jupyterlab-linux.png
new file mode 100644
index 000000000000..8df600b7811c
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-level-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-filled-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-filled-jupyterlab-linux.png
new file mode 100644
index 000000000000..511b4dcef22f
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-filled-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-missing-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-missing-jupyterlab-linux.png
new file mode 100644
index 000000000000..9f76312a7d20
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-required-missing-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-ui-schema-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-ui-schema-jupyterlab-linux.png
new file mode 100644
index 000000000000..d433b32247d6
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-ui-schema-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-wrong-cell-type-jupyterlab-linux.png b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-wrong-cell-type-jupyterlab-linux.png
new file mode 100644
index 000000000000..74ba272f9da0
Binary files /dev/null and b/galata/test/jupyterlab/metadataform.test.ts-snapshots/metadata-wrong-cell-type-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts b/galata/test/jupyterlab/notebook-create.test.ts
index 12e4eb25f5d4..e374d3060ff6 100644
--- a/galata/test/jupyterlab/notebook-create.test.ts
+++ b/galata/test/jupyterlab/notebook-create.test.ts
@@ -4,6 +4,7 @@
 import { expect, IJupyterLabPageFixture, test } from '@jupyterlab/galata';
 
 const fileName = 'notebook.ipynb';
+const TRUSTED_SELECTOR = 'svg[data-icon="ui-components:trusted"]';
 
 const menuPaths = ['File', 'Edit', 'View', 'Run', 'Kernel', 'Help'];
 
@@ -25,6 +26,7 @@ test.describe('Notebook Create', () => {
     await page.notebook.setCell(0, 'raw', 'Just a raw cell');
     expect(await page.notebook.getCellCount()).toBe(1);
     expect(await page.notebook.getCellType(0)).toBe('raw');
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
   });
 
   test('Create a Markdown cell', async ({ page }) => {
@@ -35,12 +37,14 @@ test.describe('Notebook Create', () => {
     await page.notebook.runCell(1, true);
     expect(await page.notebook.getCellCount()).toBe(2);
     expect(await page.notebook.getCellType(1)).toBe('markdown');
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
   });
 
   test('Create a Code cell', async ({ page }) => {
     await page.notebook.addCell('code', '2 ** 3');
     expect(await page.notebook.getCellCount()).toBe(2);
     expect(await page.notebook.getCellType(1)).toBe('code');
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
   });
 
   test('Save Notebook', async ({ page }) => {
@@ -72,6 +76,7 @@ test.describe('Notebook Create', () => {
     const imageName = 'run-cells.png';
 
     expect((await page.notebook.getCellTextOutput(2))[0]).toBe('8');
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
 
     const nbPanel = await page.notebook.getNotebookInPanel();
 
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/dark-theme-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/dark-theme-jupyterlab-linux.png
index 3dd4670b9588..5b7011f2d2c8 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/dark-theme-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/dark-theme-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-edit-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-edit-jupyterlab-linux.png
index ac87753aa321..080a06cd7ef9 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-edit-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-edit-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-file-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-file-jupyterlab-linux.png
index 45a3723420b9..6d11f93ba188 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-file-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-file-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-help-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-help-jupyterlab-linux.png
index e4c974598405..cdf443fa8e50 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-help-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-help-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-kernel-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-kernel-jupyterlab-linux.png
index 13cdfcddaa54..14639d10bbcd 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-kernel-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-kernel-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-run-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-run-jupyterlab-linux.png
index 436f4ae972ef..40fd136f206d 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-run-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-run-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-view-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-view-jupyterlab-linux.png
index e4355454f428..37ff8ad42569 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-view-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/opened-menu-view-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/run-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/run-cells-jupyterlab-linux.png
index 4cfd421b1b04..047f758bfe0d 100644
Binary files a/galata/test/jupyterlab/notebook-create.test.ts-snapshots/run-cells-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-create.test.ts-snapshots/run-cells-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts b/galata/test/jupyterlab/notebook-edit.test.ts
index c8055d9ca337..59075eeaff04 100644
--- a/galata/test/jupyterlab/notebook-edit.test.ts
+++ b/galata/test/jupyterlab/notebook-edit.test.ts
@@ -55,9 +55,9 @@ test.describe('Notebook Edit', () => {
 
     let imageName = 'copy-paste-cell.png';
     await page.notebook.selectCells(1);
-    await page.menu.clickMenuItem('Edit>Copy Cells');
+    await page.menu.clickMenuItem('Edit>Copy Cell');
     await page.notebook.selectCells(0);
-    await page.menu.clickMenuItem('Edit>Paste Cells Above');
+    await page.menu.clickMenuItem('Edit>Paste Cell Above');
     let nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -68,9 +68,9 @@ test.describe('Notebook Edit', () => {
 
     const imageName = 'cut-paste-cell.png';
     await page.notebook.selectCells(0);
-    await page.menu.clickMenuItem('Edit>Cut Cells');
-    await page.notebook.selectCells(2);
-    await page.menu.clickMenuItem('Edit>Paste Cells Below');
+    await page.menu.clickMenuItem('Edit>Cut Cell');
+    await page.notebook.selectCells(0);
+    await page.menu.clickMenuItem('Edit>Paste Cell Below');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -81,9 +81,9 @@ test.describe('Notebook Edit', () => {
 
     const imageName = 'paste-replace-cell.png';
     await page.notebook.selectCells(0);
-    await page.menu.clickMenuItem('Edit>Copy Cells');
+    await page.menu.clickMenuItem('Edit>Copy Cell');
     await page.notebook.selectCells(2);
-    await page.menu.clickMenuItem('Edit>Paste Cells and Replace');
+    await page.menu.clickMenuItem('Edit>Paste Cell and Replace');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -94,7 +94,7 @@ test.describe('Notebook Edit', () => {
 
     const imageName = 'delete-cell.png';
     await page.notebook.selectCells(2);
-    await page.menu.clickMenuItem('Edit>Delete Cells');
+    await page.menu.clickMenuItem('Edit>Delete Cell');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -124,7 +124,7 @@ test.describe('Notebook Edit', () => {
     await populateNotebook(page);
     const imageName = 'move-cell-up.png';
     await page.notebook.selectCells(1);
-    await page.menu.clickMenuItem('Edit>Move Cells Up');
+    await page.menu.clickMenuItem('Edit>Move Cell Up');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -134,7 +134,7 @@ test.describe('Notebook Edit', () => {
     await populateNotebook(page);
     const imageName = 'move-cell-down.png';
     await page.notebook.selectCells(0);
-    await page.menu.clickMenuItem('Edit>Move Cells Down');
+    await page.menu.clickMenuItem('Edit>Move Cell Down');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
     expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
@@ -149,9 +149,10 @@ test.describe('Notebook Edit', () => {
     await page.keyboard.insertText('3 ** 2');
     await page.keyboard.press('Home');
     await page.menu.clickMenuItem('Edit>Split Cell');
+
     const nbPanel = await page.notebook.getNotebookInPanel();
 
-    expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
+    expect(await nbPanel!.screenshot()).toMatchSnapshot(imageName);
   });
 
   test('Merge split cells', async ({ page }) => {
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png
index 86b9acf6d6da..708fe7d2de11 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/cut-paste-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/cut-paste-cell-jupyterlab-linux.png
index 4a27ff20c6c4..3b13be909742 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/cut-paste-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/cut-paste-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/delete-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/delete-cell-jupyterlab-linux.png
index e5c3a011bfb2..8ab311123c46 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/delete-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/delete-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/deselect-all-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/deselect-all-cells-jupyterlab-linux.png
index cbdd49c0dc77..b60486a56c60 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/deselect-all-cells-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/deselect-all-cells-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/execute-again-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/execute-again-jupyterlab-linux.png
index f190ea80cd72..66009e69edbe 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/execute-again-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/execute-again-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/merge-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/merge-cells-jupyterlab-linux.png
index b0cf0f0b4f31..4245eec2a280 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/merge-cells-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/merge-cells-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-down-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-down-jupyterlab-linux.png
index 4a27ff20c6c4..3b13be909742 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-down-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-down-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-up-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-up-jupyterlab-linux.png
index e9a1f05c8a38..5198ac51fd46 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-up-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/move-cell-up-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/paste-replace-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/paste-replace-cell-jupyterlab-linux.png
index f5fb550185c5..6540833df7d8 100644
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diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/reedit-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/reedit-cell-jupyterlab-linux.png
index f190ea80cd72..66009e69edbe 100644
Binary files a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/reedit-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/reedit-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/run-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/run-cell-jupyterlab-linux.png
index 1da8d5d16103..6b3086686f18 100644
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diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/select-all-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/select-all-cells-jupyterlab-linux.png
index 576966fca877..39e89ca7773e 100644
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diff --git a/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/split-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-edit.test.ts-snapshots/split-cell-jupyterlab-linux.png
index 1d7c0abc44bd..b51b88f47a5d 100644
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diff --git a/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-not-latex-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-not-latex-jupyterlab-linux.png
index 2f9549e380fc..c66fdb644ebb 100644
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diff --git a/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-standalone-dollar-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-standalone-dollar-jupyterlab-linux.png
index ef0be004becd..3901d8bdf468 100644
Binary files a/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-standalone-dollar-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/do-not-highlight-standalone-dollar-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/highlight-latex-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/highlight-latex-jupyterlab-linux.png
index a93cf68b74ed..7c808f7c5358 100644
Binary files a/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/highlight-latex-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-markdown.test.ts-snapshots/highlight-latex-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-max-outputs.test.ts b/galata/test/jupyterlab/notebook-max-outputs.test.ts
index 715254c7870f..7790f14cce58 100644
--- a/galata/test/jupyterlab/notebook-max-outputs.test.ts
+++ b/galata/test/jupyterlab/notebook-max-outputs.test.ts
@@ -3,12 +3,14 @@
 
 import { expect, galata, test } from '@jupyterlab/galata';
 
+const MAX_OUTPUTS = 5;
+
 test.use({
   mockSettings: {
     ...galata.DEFAULT_SETTINGS,
     '@jupyterlab/notebook-extension:tracker': {
       ...galata.DEFAULT_SETTINGS['@jupyterlab/notebook-extension:tracker'],
-      maxNumberOutputs: 5
+      maxNumberOutputs: MAX_OUTPUTS
     }
   }
 });
@@ -16,10 +18,9 @@ test.use({
 test('Limit cell outputs', async ({ page }) => {
   await page.notebook.createNew();
 
-  await page.waitForSelector('text=| Idle');
-
-  await page.locator('div[role="main"] >> textarea')
-    .fill(`from IPython.display import display, Markdown
+  await page.locator(
+    '.jp-Cell-inputArea >> .cm-editor >> .cm-content[contenteditable="true"]'
+  ).type(`from IPython.display import display, Markdown
 
 for i in range(10):
     display(Markdown('_Markdown_ **text**'))
@@ -27,23 +28,18 @@ for i in range(10):
 
   await page.notebook.run();
 
-  await expect(page.locator('.jp-RenderedMarkdown')).toHaveCount(5);
+  await expect(page.locator('.jp-RenderedMarkdown')).toHaveCount(MAX_OUTPUTS);
   await expect(page.locator('.jp-TrimmedOutputs')).toHaveText(
-    `
-          Output of this cell has been trimmed on the initial display.
-          Displaying the first 5 top outputs.
-          Click on this message to get the complete output.
-`
+    'Show more outputs'
   );
 });
 
 test("Don't limit cell outputs if input is requested", async ({ page }) => {
   await page.notebook.createNew();
 
-  await page.waitForSelector('text=| Idle');
-
-  await page.locator('div[role="main"] >> textarea')
-    .fill(`from IPython.display import display, Markdown
+  await page.locator(
+    '.jp-Cell-inputArea >> .cm-editor >> .cm-content[contenteditable="true"]'
+  ).type(`from IPython.display import display, Markdown
 
 for i in range(10):
     display(Markdown('_Markdown_ **text**'))
@@ -53,8 +49,9 @@ input('Your age:')
 
   await page.menu.clickMenuItem('Run>Run All Cells');
   await page.waitForSelector('.jp-Stdin >> text=Your age:');
-
-  expect(await page.locator('.jp-RenderedMarkdown').count()).toBeGreaterThan(5);
+  expect(await page.locator('.jp-RenderedMarkdown').count()).toBeGreaterThan(
+    MAX_OUTPUTS
+  );
 
   await page.keyboard.press('Enter');
 });
@@ -62,10 +59,9 @@ input('Your age:')
 test('Display input value', async ({ page }) => {
   await page.notebook.createNew();
 
-  await page.waitForSelector('text=| Idle');
-
-  await page.locator('div[role="main"] >> textarea')
-    .fill(`from IPython.display import display, Markdown
+  await page.locator(
+    '.jp-Cell-inputArea >> .cm-editor >> .cm-content[contenteditable="true"]'
+  ).type(`from IPython.display import display, Markdown
 
 for i in range(10):
     display(Markdown('_Markdown_ **text**'))
@@ -82,7 +78,9 @@ for i in range(10):
   await page.keyboard.type('42');
   await page.keyboard.press('Enter');
 
-  expect(await page.locator('.jp-RenderedMarkdown').count()).toBeGreaterThan(5);
+  expect(await page.locator('.jp-RenderedMarkdown').count()).toBeGreaterThan(
+    MAX_OUTPUTS
+  );
   await expect(page.locator('.jp-RenderedText').first()).toHaveText(
     'Your age: 42'
   );
diff --git a/galata/test/jupyterlab/notebook-mobile.test.ts b/galata/test/jupyterlab/notebook-mobile.test.ts
new file mode 100644
index 000000000000..a8bcd8e32972
--- /dev/null
+++ b/galata/test/jupyterlab/notebook-mobile.test.ts
@@ -0,0 +1,27 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+const fileName = 'notebook.ipynb';
+
+test.use({ viewport: { width: 512, height: 768 } });
+
+test.describe('Notebook Layout on Mobile', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew(fileName);
+  });
+
+  test('Execute code cell', async ({ page }) => {
+    await page.sidebar.close('left');
+    // TODO: calling `setCell` just once leads to very flaky test
+    // See https://github.com/jupyterlab/jupyterlab/issues/15252 for more information
+    await page.notebook.setCell(0, 'code', 'print("hello")');
+    await page.notebook.setCell(0, 'code', 'print("hello")');
+    await page.notebook.addCell('code', '2 * 3');
+    await page.notebook.runCellByCell();
+    const nbPanel = await page.notebook.getNotebookInPanel();
+    const imageName = 'mobile-layout.png';
+    expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
+  });
+});
diff --git a/galata/test/jupyterlab/notebook-mobile.test.ts-snapshots/mobile-layout-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-mobile.test.ts-snapshots/mobile-layout-jupyterlab-linux.png
new file mode 100644
index 000000000000..1c94b10c405f
Binary files /dev/null and b/galata/test/jupyterlab/notebook-mobile.test.ts-snapshots/mobile-layout-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-replace.test.ts b/galata/test/jupyterlab/notebook-replace.test.ts
new file mode 100644
index 000000000000..14655b08f694
--- /dev/null
+++ b/galata/test/jupyterlab/notebook-replace.test.ts
@@ -0,0 +1,148 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { expect } from '@playwright/test';
+import * as path from 'path';
+
+const fileName = 'search.ipynb';
+
+test.describe('Notebook Search and Replace', () => {
+  test.beforeEach(async ({ page, tmpPath }) => {
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+  });
+
+  test.afterEach(async ({ page, tmpPath }) => {
+    await page.contents.deleteDirectory(tmpPath);
+  });
+
+  test('Replace in cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    await page.click('button[title="Toggle Replace"]');
+
+    await page.fill('[placeholder="Replace"]', 'egg');
+
+    await page.click('button:has-text("Replace")');
+
+    await page.waitForSelector('text=1/20');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot('replace-in-cell.png');
+  });
+
+  test('Substitute groups of regular expressions', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+
+    await page.click('button[title="Use Regular Expression"]');
+    await page.fill('[placeholder="Find"]', 'text/(\\w+)');
+    await page.waitForSelector('text=1/3');
+
+    await page.click('button[title="Toggle Replace"]');
+    await page.fill('[placeholder="Replace"]', 'script/$1');
+    const cell = await page.notebook.getCell(2);
+    await expect(page.locator('body')).not.toContainText('script/plain');
+
+    await page.click('button:has-text("Replace")');
+    await page.waitForSelector('text=1/2');
+
+    await cell.waitForSelector('text=script/plain');
+    await expect(page.locator('body')).toContainText('script/plain');
+  });
+
+  test('Replace on markdown rendered cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    // Click next button
+    await page.click('button[title="Next Match"]', {
+      clickCount: 4
+    });
+
+    await page.click('button[title="Toggle Replace"]');
+
+    await page.fill('[placeholder="Replace"]', 'egg');
+
+    await page.click('button:has-text("Replace")');
+
+    await page.waitForSelector('text=5/20');
+
+    const cell = await page.notebook.getCell(1);
+
+    expect(await (await cell.$('.jp-Editor')).screenshot()).toMatchSnapshot(
+      'replace-in-markdown-rendered-cell.png'
+    );
+  });
+
+  test('Replace all', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    await page.click('button[title="Toggle Replace"]');
+
+    await page.fill('[placeholder="Replace"]', 'egg');
+
+    await page.click('button:has-text("Replace All")');
+
+    await page.waitForSelector('text=-/-');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot('replace-all.png');
+  });
+
+  test('Replace step-by-step across cell boundaries', async ({ page }) => {
+    // Create a small test notebook
+    await page.notebook.createNew();
+    await page.notebook.setCell(0, 'code', 'test\ntest');
+    await page.notebook.addCell('code', 'test\ntest');
+
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'test');
+
+    await page.click('button[title="Toggle Replace"]');
+    await page.fill('[placeholder="Replace"]', 'egg');
+
+    // TODO: Next Match press count should be one less
+    // (the -/4 state should not be necessary).
+    await page.waitForSelector('text=-/4');
+    await page.click('button[title="Next Match"]', {
+      clickCount: 3
+    });
+
+    await page.waitForSelector('text=1/4');
+    await page.click('button:has-text("Replace")');
+
+    await page.waitForSelector('text=1/3');
+    await page.click('button:has-text("Replace")');
+
+    // At this point we should be in the second cell
+    await page.waitForSelector('text=1/2');
+    await page.click('button:has-text("Replace")');
+
+    await page.waitForSelector('text=1/1');
+
+    await page.click('button:has-text("Replace")');
+    await page.waitForSelector('text=-/-');
+  });
+});
diff --git a/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-all-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-all-jupyterlab-linux.png
new file mode 100644
index 000000000000..573555930227
Binary files /dev/null and b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-all-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-cell-jupyterlab-linux.png
new file mode 100644
index 000000000000..b005de022cf9
Binary files /dev/null and b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-markdown-rendered-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-markdown-rendered-cell-jupyterlab-linux.png
new file mode 100644
index 000000000000..cf56fa5dbee1
Binary files /dev/null and b/galata/test/jupyterlab/notebook-replace.test.ts-snapshots/replace-in-markdown-rendered-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run-vega.test.ts b/galata/test/jupyterlab/notebook-run-vega.test.ts
index b749aa136d8c..231b9efc9e35 100644
--- a/galata/test/jupyterlab/notebook-run-vega.test.ts
+++ b/galata/test/jupyterlab/notebook-run-vega.test.ts
@@ -1,59 +1,83 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expect, galata, test } from '@jupyterlab/galata';
+import {
+  expect,
+  galata,
+  IJupyterLabPageFixture,
+  test
+} from '@jupyterlab/galata';
 import * as path from 'path';
 
 const fileName = 'vega_notebook.ipynb';
 
-test.use({ tmpPath: 'notebook-run-vega-test' });
+const PNG_MIME_TYPE = 'image/png';
 
-test.describe.serial('Notebook Run Vega', () => {
-  test.beforeAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+async function nbDiskContent(
+  page: IJupyterLabPageFixture,
+  nbPath: string
+): Promise<string> {
+  await page.notebook.save();
+  // Use the `files` API as figure out the local path is though.
+  const response = await page.request.fetch(`/files/${nbPath}`);
+  if (!response.ok()) {
+    return '';
+  }
+  const buffer = await response.body();
+  return buffer.toString();
+}
+
+test.describe('Notebook Run Vega', () => {
+  test.beforeEach(async ({ page, request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.uploadFile(
       path.resolve(__dirname, `./notebooks/${fileName}`),
       `${tmpPath}/${fileName}`
     );
-  });
 
-  test.beforeEach(async ({ page, tmpPath }) => {
     await page.filebrowser.openDirectory(tmpPath);
   });
 
-  test.afterAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
-    await contents.deleteDirectory(tmpPath);
-  });
-
   test('Run notebook with Vega cell in default theme', async ({
     page,
     tmpPath
   }) => {
-    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    const nbPath = `${tmpPath}/${fileName}`;
+    await page.notebook.openByPath(nbPath);
     await page.notebook.activate(fileName);
 
+    expect(await nbDiskContent(page, nbPath)).not.toContain(PNG_MIME_TYPE);
+
     const imageName = 'run-cells-vega.png';
 
     await page.notebook.run();
-    const graph = await page.waitForSelector('.vega-embed');
+    await page.waitForSelector('.vega-embed');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
 
-    expect(await graph.screenshot()).toMatchSnapshot(imageName);
+    expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
+    expect(await nbDiskContent(page, nbPath)).toContain(PNG_MIME_TYPE);
   });
 
   test('Run notebook with Vega cell in dark theme', async ({
     page,
     tmpPath
   }) => {
-    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    const nbPath = `${tmpPath}/${fileName}`;
+    await page.notebook.openByPath(nbPath);
     await page.notebook.activate(fileName);
     await page.theme.setDarkTheme();
 
+    expect(await nbDiskContent(page, nbPath)).not.toContain(PNG_MIME_TYPE);
+
     const imageName = 'run-cells-dark-vega.png';
 
     await page.notebook.run();
-    const graph = await page.waitForSelector('.vega-embed');
+    await page.waitForSelector('.vega-embed');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
 
-    expect(await graph.screenshot()).toMatchSnapshot(imageName);
+    expect(await nbPanel.screenshot()).toMatchSnapshot(imageName);
+    expect(await nbDiskContent(page, nbPath)).toContain(PNG_MIME_TYPE);
   });
 });
diff --git a/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-dark-vega-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-dark-vega-jupyterlab-linux.png
index d8fa42ca0b15..6a28fa9c1b00 100644
Binary files a/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-dark-vega-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-dark-vega-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-vega-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-vega-jupyterlab-linux.png
index 6f5d43d0d258..f3bc34a3164d 100644
Binary files a/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-vega-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-run-vega.test.ts-snapshots/run-cells-vega-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run.test.ts b/galata/test/jupyterlab/notebook-run.test.ts
index 52a16da0e340..fb44dc4fe2c8 100644
--- a/galata/test/jupyterlab/notebook-run.test.ts
+++ b/galata/test/jupyterlab/notebook-run.test.ts
@@ -9,8 +9,8 @@ const fileName = 'simple_notebook.ipynb';
 test.use({ tmpPath: 'notebook-run-test' });
 
 test.describe.serial('Notebook Run', () => {
-  test.beforeAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.uploadFile(
       path.resolve(__dirname, `./notebooks/${fileName}`),
       `${tmpPath}/${fileName}`
@@ -25,8 +25,8 @@ test.describe.serial('Notebook Run', () => {
     await page.filebrowser.openDirectory(tmpPath);
   });
 
-  test.afterAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.deleteDirectory(tmpPath);
   });
 
@@ -59,7 +59,7 @@ test.describe.serial('Notebook Run', () => {
     numNBImages++;
 
     for (let c = 0; c < numNBImages; ++c) {
-      expect(captures[c]).toMatchSnapshot(getCaptureImageName(c));
+      expect.soft(captures[c]).toMatchSnapshot(getCaptureImageName(c));
     }
   });
 
diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-0-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-0-jupyterlab-linux.png
index 1044d4e0ff96..ddfd8b30c538 100644
Binary files a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-0-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-0-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-1-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-1-jupyterlab-linux.png
new file mode 100644
index 000000000000..93fd06f6c1ee
Binary files /dev/null and b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-1-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-2-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-2-jupyterlab-linux.png
new file mode 100644
index 000000000000..8719276372a4
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diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-3-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-3-jupyterlab-linux.png
new file mode 100644
index 000000000000..0b261a45c866
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diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-4-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-4-jupyterlab-linux.png
new file mode 100644
index 000000000000..64dd32c5f73f
Binary files /dev/null and b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-4-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-5-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-5-jupyterlab-linux.png
new file mode 100644
index 000000000000..90b4eeb1ab1a
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diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-6-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-6-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-7-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-run.test.ts-snapshots/notebook-panel-7-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-scroll.test.ts b/galata/test/jupyterlab/notebook-scroll.test.ts
new file mode 100644
index 000000000000..a02f4ef7817e
--- /dev/null
+++ b/galata/test/jupyterlab/notebook-scroll.test.ts
@@ -0,0 +1,57 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import * as path from 'path';
+
+const fileName = 'scroll.ipynb';
+
+test.use({
+  mockSettings: {
+    ...galata.DEFAULT_SETTINGS,
+    '@jupyterlab/notebook-extension:tracker': {
+      ...galata.DEFAULT_SETTINGS['@jupyterlab/notebook-extension:tracker'],
+      windowingMode: 'full'
+    }
+  }
+});
+
+test.describe('Notebook Scroll', () => {
+  test.beforeEach(async ({ page, tmpPath }) => {
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+  });
+
+  test.afterEach(async ({ page, tmpPath }) => {
+    await page.contents.deleteDirectory(tmpPath);
+  });
+
+  const cellLinks = {
+    'penultimate cell using heading, legacy format': 18,
+    'penultimate cell using heading, explicit fragment': 18,
+    'last cell using heading, legacy format': 19,
+    'last cell using heading, explicit fragment': 19,
+    'last cell using cell identifier': 19
+  };
+  for (const [link, cellIdx] of Object.entries(cellLinks)) {
+    test(`Scroll to ${link}`, async ({ page }) => {
+      const firstCell = await page.notebook.getCell(0);
+      await firstCell.scrollIntoViewIfNeeded();
+      expect(await firstCell.boundingBox()).toBeTruthy();
+
+      await page.click(`a:has-text("${link}")`);
+
+      await firstCell.waitForElementState('hidden');
+      expect(await firstCell.boundingBox()).toBeFalsy();
+
+      const lastCell = await page.notebook.getCell(cellIdx);
+      await lastCell.waitForElementState('visible');
+      expect(await lastCell.boundingBox()).toBeTruthy();
+    });
+  }
+});
diff --git a/galata/test/jupyterlab/notebook-search.test.ts b/galata/test/jupyterlab/notebook-search.test.ts
new file mode 100644
index 000000000000..585c8d07544b
--- /dev/null
+++ b/galata/test/jupyterlab/notebook-search.test.ts
@@ -0,0 +1,537 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { expect } from '@playwright/test';
+import * as path from 'path';
+
+const fileName = 'search.ipynb';
+
+function getSelectionRange(textarea: HTMLTextAreaElement) {
+  return {
+    start: textarea.selectionStart,
+    end: textarea.selectionEnd
+  };
+}
+
+test.describe('Notebook Search', () => {
+  test.beforeEach(async ({ page, tmpPath }) => {
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+  });
+
+  test.afterEach(async ({ page, tmpPath }) => {
+    await page.contents.deleteDirectory(tmpPath);
+  });
+
+  test('Search', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot('search.png');
+  });
+
+  test('Typing in search box', async ({ page }) => {
+    // Check against React being too eager with controling state of input box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', '14');
+    await page.press('[placeholder="Find"]', 'ArrowLeft');
+    await page.type('[placeholder="Find"]', '2');
+    await page.type('[placeholder="Find"]', '3');
+
+    await expect(page.locator('[placeholder="Find"]')).toHaveValue('1234');
+  });
+
+  test('RegExp parsing failure', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'test\\');
+
+    await page.click('button[title="Use Regular Expression"]');
+
+    await expect(page.locator('.jp-DocumentSearch-regex-error')).toBeVisible();
+
+    const overlay = page.locator('.jp-DocumentSearch-overlay');
+
+    expect(await overlay.screenshot()).toMatchSnapshot(
+      'regexp-parsing-failure.png'
+    );
+  });
+
+  test('Multi-line search', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+
+    await page.fill(
+      '[placeholder="Find"]',
+      'one notebook withr\n\n\nThis is a multi'
+    );
+
+    await page.waitForSelector('text=1/1');
+
+    // Show replace buttons to check for visual regressions
+    await page.click('button[title="Toggle Replace"]');
+    await page.fill('[placeholder="Replace"]', 'line1\nline2');
+
+    const overlay = page.locator('.jp-DocumentSearch-overlay');
+    expect(await overlay.screenshot()).toMatchSnapshot('multi-line-search.png');
+  });
+
+  test('Populate search box with selected text', async ({ page }) => {
+    // Enter first cell
+    await page.notebook.enterCellEditingMode(0);
+
+    // Go to first line
+    await page.keyboard.press('PageUp');
+    // Select first line
+    await page.keyboard.press('Shift+End');
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    // Expect it to be populated with the first line
+    const inputWithFirstLine = page.locator(
+      '[placeholder="Find"] >> text="Test with one notebook withr"'
+    );
+    await expect(inputWithFirstLine).toBeVisible();
+    await expect(inputWithFirstLine).toBeFocused();
+    // Expect the newly set text to be selected
+    expect(await inputWithFirstLine.evaluate(getSelectionRange)).toStrictEqual({
+      start: 0,
+      end: 28
+    });
+
+    // Expect the first match to be highlighted
+    await page.waitForSelector('text=1/2');
+
+    // Enter first cell again
+    await page.notebook.enterCellEditingMode(0);
+    // Go to last line
+    await page.keyboard.press('PageDown');
+    // Select last line
+    await page.keyboard.press('Shift+Home');
+    // Update search box
+    await page.keyboard.press('Control+f');
+
+    // Expect it to be populated with the last line
+    const inputWithLastLine = page.locator(
+      '[placeholder="Find"] >> text="This is a multi line with hits with"'
+    );
+    await expect(inputWithLastLine).toBeVisible();
+    await expect(inputWithLastLine).toBeFocused();
+    // Expect the newly set text to be selected
+    expect(await inputWithLastLine.evaluate(getSelectionRange)).toStrictEqual({
+      start: 0,
+      end: 35
+    });
+
+    await expect(page.locator('.jp-DocumentSearch-overlay')).toBeVisible();
+  });
+
+  test('Restore previous search query if there is no selection', async ({
+    page
+  }) => {
+    const inputWithTestLocator = page.locator(
+      '[placeholder="Find"] >> text="test"'
+    );
+    const overlayLocator = page.locator('.jp-DocumentSearch-overlay');
+
+    // Search for "test"
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'test');
+    await page.waitForSelector('text=1/2');
+
+    // Close search box
+    await page.keyboard.press('Escape');
+    await expect(overlayLocator).toBeHidden();
+
+    // Open search box again
+    await page.keyboard.press('Control+f');
+    await expect(overlayLocator).toBeVisible();
+    // Expect the text to be set in the input field
+    await expect(inputWithTestLocator).toBeVisible();
+    // Expect the search to be active again
+    await page.waitForSelector('text=1/2');
+  });
+
+  test('Close with Escape', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+    await expect(page.locator('.jp-DocumentSearch-overlay')).toBeVisible();
+
+    // Close search box
+    await page.keyboard.press('Escape');
+    await expect(page.locator('.jp-DocumentSearch-overlay')).toBeHidden();
+  });
+
+  test('Close with Escape from Notebook', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+    await expect(page.locator('.jp-DocumentSearch-overlay')).toBeVisible();
+
+    // Enter first cell
+    await page.notebook.enterCellEditingMode(0);
+
+    // First escape should NOT close the search box (but leave the editing mode)
+    await page.keyboard.press('Escape');
+    await page.waitForTimeout(250);
+    expect(await page.notebook.isCellInEditingMode(0)).toBeFalsy();
+    expect(await page.isVisible('.jp-DocumentSearch-overlay')).toBeTruthy();
+
+    // Second escape should close the search box (even if it is not focused)
+    await page.keyboard.press('Escape');
+    await expect(page.locator('.jp-DocumentSearch-overlay')).toBeHidden();
+  });
+
+  test('Search within outputs', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.click('button[title="Show Search Filters"]');
+
+    await page.click('text=Search Cell Outputs');
+
+    // If the notebook is not fully loaded yet a confirmation dialog will show up
+    if (await page.locator('.jp-Dialog').isVisible()) {
+      await page.click('.jp-Dialog .jp-mod-accept');
+    }
+
+    await page.waitForSelector('text=1/29');
+
+    const cell = await page.notebook.getCell(5);
+    await cell.scrollIntoViewIfNeeded();
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-within-outputs.png'
+    );
+  });
+
+  test('Search in a single selected cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.click('button[title="Show Search Filters"]');
+
+    await page.click('text=Search in 1 Selected Cell');
+
+    await page.waitForSelector('text=1/4');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-in-selected-cells.png'
+    );
+  });
+
+  test('Search in multiple selected cells', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'with');
+    await page.click('button[title="Show Search Filters"]');
+    await page.click('text=Search in 1 Selected Cell');
+
+    // Bring focus to first cell without switching away from command mode
+    let cell = await page.notebook.getCell(0);
+    await (await cell.$('.jp-InputPrompt')).click();
+
+    // Select two cells below
+    await page.keyboard.press('Shift+ArrowDown');
+    await page.keyboard.press('Shift+ArrowDown');
+
+    // Expect the filter text to be updated
+    await page.waitForSelector('text=Search in 3 Selected Cells');
+
+    // Reset selection, switch to third cell, preserving command mode
+    cell = await page.notebook.getCell(2);
+    await (await cell.$('.jp-InputPrompt')).click();
+
+    await page.waitForSelector('text=Search in 1 Selected Cell');
+
+    // Select cell above
+    await page.keyboard.press('Shift+ArrowUp');
+
+    // Expect updated text
+    await page.waitForSelector('text=Search in 2 Selected Cells');
+
+    // Expect 15 matches; this is 6/15, not 1/15 because current match is set
+    // in second cell and when selection is extended, it does not move; keeping
+    // the current match when extending the selection is desired as user may use
+    // it as a reference, especially when it was set as closest to the cursor.
+    await page.waitForSelector('text=6/15');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-in-two-selected-cells.png'
+    );
+  });
+
+  test('Search in multiple selected cells from edit mode', async ({ page }) => {
+    // This is testing focus handling when extending the selection after
+    // switching focus away from cell editor, which needs to protect against
+    // race conditions and CodeMirror6 focus issues when highlights get added.
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'with');
+    await page.click('button[title="Show Search Filters"]');
+    await page.click('text=Search in 1 Selected Cell');
+    await page.waitForSelector('text=1/4');
+
+    // Bring focus to first cell without switching to edit mode
+    let cell = await page.notebook.getCell(0);
+    await (await cell.$('.jp-Editor')).click();
+
+    // Switch back to command mode
+    await page.keyboard.press('Escape');
+
+    // Select two cells below
+    await page.keyboard.press('Shift+ArrowDown');
+    await page.keyboard.press('Shift+ArrowDown');
+
+    // Expect the filter text to be updated
+    await page.waitForSelector('text=Search in 3 Selected Cells');
+
+    // Expect 19 matches
+    await page.waitForSelector('text=1/19');
+  });
+
+  test('Search in selected text', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'text/');
+    await page.waitForSelector('text=1/3');
+
+    // Activate third cell
+    const cell = await page.notebook.getCell(2);
+    const editor = await cell.$('.jp-Editor');
+    await editor.click();
+
+    // Select 7 lines
+    await page.keyboard.press('Control+Home');
+    for (let i = 0; i < 6; i++) {
+      await page.keyboard.press('Shift+ArrowDown');
+    }
+
+    // Switch to selection search mode
+    await page.click('button[title="Show Search Filters"]');
+    await page.click('text=Search in 7 Selected Lines');
+
+    await page.waitForSelector('text=1/2');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-in-selected-text.png'
+    );
+  });
+
+  test('Highlights are visible when text is selected', async ({ page }) => {
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'with');
+    await page.waitForSelector('text=1/21');
+
+    const cell = await page.notebook.getCell(0);
+    const editor = await cell.$('.jp-Editor');
+    await editor.click();
+
+    // Select text (to see if the highlights will still be visible)
+    await page.keyboard.press('Control+A');
+
+    expect(await (await cell.$('.jp-Editor')).screenshot()).toMatchSnapshot(
+      'highlight-visible-under-selection.png'
+    );
+  });
+
+  test('Highlight next hit same editor', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    // Click next button
+    await page.click('button[title="Next Match"]');
+
+    const cell = await page.notebook.getCell(0);
+
+    expect(await (await cell.$('.jp-Editor')).screenshot()).toMatchSnapshot(
+      'highlight-next-in-editor.png'
+    );
+  });
+
+  test('Highlight next hit in the next cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    // Click next button
+    await page.click('button[title="Next Match"]', {
+      clickCount: 4
+    });
+
+    const cell = await page.notebook.getCell(1);
+
+    expect(await cell.screenshot()).toMatchSnapshot('highlight-next-cell.png');
+  });
+
+  test('Highlight previous hit', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    // Click previous button
+    await page.click('button[title="Previous Match"]');
+    // Should cycle back
+    await page.waitForSelector('text=21/21');
+
+    // Click previous button twice
+    await page.click('button[title="Previous Match"]');
+    await page.click('button[title="Previous Match"]');
+    // Should move up by two
+    await page.waitForSelector('text=19/21');
+
+    const hit = await page.notebook.getCell(2);
+    expect(await hit.screenshot()).toMatchSnapshot(
+      'highlight-previous-element.png'
+    );
+  });
+
+  test('Search from cursor', async ({ page }) => {
+    const cell = await page.notebook.getCell(5);
+    await cell.click();
+    await page.keyboard.press('Escape');
+    await cell.scrollIntoViewIfNeeded();
+
+    // Open search box
+    await page.keyboard.press('Control+f');
+    await page.fill('[placeholder="Find"]', 'with');
+    await page.waitForSelector('text=20/21');
+
+    // Click previous button
+    await page.click('button[title="Previous Match"]');
+    await page.waitForSelector('text=19/21');
+  });
+
+  test('Highlight on markdown rendered state change', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    // Click next button
+    await page.click('button[title="Next Match"]', {
+      clickCount: 4
+    });
+
+    const cell = await page.notebook.getCell(1);
+
+    await cell.dblclick();
+
+    expect(await (await cell.$('.jp-Editor')).screenshot()).toMatchSnapshot(
+      'highlight-markdown-switch-state.png'
+    );
+  });
+
+  test('Search on typing', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    // Wait until search has settled before entering a cell for edition
+    // as this can lead to selection of active result near that cell
+    // (rather than at the beginning of the notebook)
+    await page.waitForSelector('text=1/21');
+
+    await page.notebook.setCell(5, 'code', 'with');
+
+    const cell = await page.notebook.getCell(5);
+    expect(await cell.screenshot()).toMatchSnapshot('search-typing.png');
+  });
+
+  test('Search new outputs', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.click('button[title="Show Search Filters"]');
+
+    await page.click('text=Search Cell Outputs');
+
+    await page.waitForSelector('text=1/29');
+
+    const cell = await page.notebook.getCell(5);
+
+    await cell.click();
+
+    await page.notebook.runCell(5);
+    expect(await cell.screenshot()).toMatchSnapshot('search-new-outputs.png');
+  });
+
+  test('Search on new cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    const cell = await page.notebook.getCell(5);
+    await cell.click();
+    await page.notebook.clickToolbarItem('insert');
+    await page.notebook.setCell(6, 'code', 'with');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-on-new-cell.png'
+    );
+  });
+
+  test('Search on deleted cell', async ({ page }) => {
+    // Open search box
+    await page.keyboard.press('Control+f');
+
+    await page.fill('[placeholder="Find"]', 'with');
+
+    await page.waitForSelector('text=1/21');
+
+    const cell = await page.notebook.getCell(5);
+    await cell.click();
+    await page.keyboard.press('Escape');
+    await cell.scrollIntoViewIfNeeded();
+
+    await page.keyboard.press('d');
+    await page.keyboard.press('d');
+
+    await page.waitForSelector('text=1/19');
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'search-on-deleted-cell.png'
+    );
+  });
+});
diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/highlight-markdown-switch-state-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/highlight-markdown-switch-state-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/multi-line-search-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/multi-line-search-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/regexp-parsing-failure-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/regexp-parsing-failure-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-selected-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-selected-cells-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-selected-text-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-selected-text-jupyterlab-linux.png
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index 000000000000..379c2cee5f88
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-two-selected-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-in-two-selected-cells-jupyterlab-linux.png
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index 000000000000..5d0d182731cf
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-jupyterlab-linux.png
new file mode 100644
index 000000000000..1dc949edbaf2
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-new-outputs-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-new-outputs-jupyterlab-linux.png
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-on-deleted-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-on-deleted-cell-jupyterlab-linux.png
new file mode 100644
index 000000000000..f3a8acbdee19
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-on-new-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-on-new-cell-jupyterlab-linux.png
new file mode 100644
index 000000000000..96324586de1a
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diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-typing-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-typing-jupyterlab-linux.png
new file mode 100644
index 000000000000..844c596ee1ce
Binary files /dev/null and b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-typing-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-within-outputs-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-within-outputs-jupyterlab-linux.png
new file mode 100644
index 000000000000..ecb9f58c3e22
Binary files /dev/null and b/galata/test/jupyterlab/notebook-search.test.ts-snapshots/search-within-outputs-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts b/galata/test/jupyterlab/notebook-toolbar.test.ts
index 016a5c9ab125..78a574d38157 100644
--- a/galata/test/jupyterlab/notebook-toolbar.test.ts
+++ b/galata/test/jupyterlab/notebook-toolbar.test.ts
@@ -57,7 +57,7 @@ test.describe('Notebook Toolbar', () => {
     await page.notebook.clickToolbarItem('cut');
 
     const imageName = 'paste-cell.png';
-    await page.notebook.selectCells(2);
+    await page.notebook.selectCells(1);
     await page.notebook.clickToolbarItem('paste');
     const nbPanel = await page.notebook.getNotebookInPanel();
 
@@ -79,7 +79,6 @@ test.describe('Notebook Toolbar', () => {
 
     await page.notebook.clickToolbarItem('run');
     await page.waitForSelector('text=8');
-    // await page.notebook.waitForRun();
 
     const nbPanel = await page.notebook.getNotebookInPanel();
 
@@ -130,7 +129,9 @@ test('Toolbar items act on owner widget', async ({ page }) => {
   expect(classlist.split(' ')).not.toContain('jp-mod-current');
 
   // When clicking on toolbar item of the first file
-  await (await panel1.$('button[title="Insert a cell below (B)"]')).click();
+  await (
+    await panel1.$('button[data-command="notebook:insert-cell-below"]')
+  ).click();
 
   // Then the first file is activated and the action is performed
   const classlistEnd = await tab1.getAttribute('class');
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/change-to-markdown-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/change-to-markdown-jupyterlab-linux.png
index 90a2c4245215..1802e0757171 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/change-to-markdown-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/change-to-markdown-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png
index 597c0b00a7ed..6573efb6e817 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/copy-paste-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/cut-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/cut-cell-jupyterlab-linux.png
index 4b7793d7181a..ce7e7f7efde9 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/cut-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/cut-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/delete-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/delete-cell-jupyterlab-linux.png
index a6944e8cf032..b682734fbbbd 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/delete-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/delete-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/insert-cells-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/insert-cells-jupyterlab-linux.png
index 63c47797a863..9360e35c0577 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/insert-cells-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/insert-cells-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/jump-previous-header-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/jump-previous-header-jupyterlab-linux.png
new file mode 100644
index 000000000000..dfa20e73cd1e
Binary files /dev/null and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/jump-previous-header-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/paste-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/paste-cell-jupyterlab-linux.png
index df5f065e1c69..48763340ea94 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/paste-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/paste-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/run-cell-jupyterlab-linux.png b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/run-cell-jupyterlab-linux.png
index 834ab3eee7ef..68863d7ca748 100644
Binary files a/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/run-cell-jupyterlab-linux.png and b/galata/test/jupyterlab/notebook-toolbar.test.ts-snapshots/run-cell-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notebook-trust.test.ts b/galata/test/jupyterlab/notebook-trust.test.ts
new file mode 100644
index 000000000000..776ffd8cbd51
--- /dev/null
+++ b/galata/test/jupyterlab/notebook-trust.test.ts
@@ -0,0 +1,76 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+const fileName = 'trust.ipynb';
+const TRUSTED_SELECTOR = 'svg[data-icon="ui-components:trusted"]';
+const NOT_TRUSTED_SELECTOR = 'svg[data-icon="ui-components:not-trusted"]';
+
+test.describe('Notebook Trust', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew(fileName);
+  });
+
+  test('Blank Markdown cell does not break trust', async ({ page }) => {
+    // See https://github.com/jupyterlab/jupyterlab/issues/9765
+
+    // Add an empty Markdown cell
+    await page.notebook.addCell('markdown', '');
+    // The notebook should be trusted
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
+    await page.notebook.save();
+    // Reload page
+    await page.reload({ waitForIsReady: false });
+    // Should still be trusted
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
+  });
+
+  test('Trust is lost after manually editing notebook', async ({ page }) => {
+    const browserContext = page.context();
+    await browserContext.grantPermissions(['clipboard-read']);
+    // Add text to first cell
+    await page.notebook.setCell(0, 'code', 'TEST_TEXT');
+    await page.notebook.save();
+    // The notebook should be trusted
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(1);
+    await expect(page.locator(NOT_TRUSTED_SELECTOR)).toHaveCount(0);
+
+    // Open notebook in text editor using context menu
+    await page.click(`.jp-DirListing-item span:has-text("${fileName}")`, {
+      button: 'right'
+    });
+    await page.hover('text=Open With');
+    await page.click('.lm-Menu li[role="menuitem"]:has-text("Editor")');
+    const editorContent = await page.waitForSelector(
+      '.jp-FileEditor .cm-content'
+    );
+    await editorContent.waitForSelector('text=TEST_TEXT');
+    const originalContent = await page.evaluate(async () => {
+      await window.jupyterapp.commands.execute('fileeditor:select-all');
+      await window.jupyterapp.commands.execute('fileeditor:cut');
+      return navigator.clipboard.readText();
+    });
+    const newContent = originalContent.replace('TEST_TEXT', 'SUBSTITUTED_TEXT');
+    await page.evaluate(
+      async ([newContent]) => {
+        await window.jupyterapp.commands.execute(
+          'fileeditor:replace-selection',
+          { text: newContent }
+        );
+        // Save file after changes
+        await window.jupyterapp.commands.execute('docmanager:save');
+        // Close the file editor view of the notebook
+        await window.jupyterapp.commands.execute('application:close');
+      },
+      [newContent]
+    );
+
+    // Reload page
+    await page.reload({ waitForIsReady: false });
+
+    // It should no longer be trusted
+    await expect(page.locator(TRUSTED_SELECTOR)).toHaveCount(0);
+    await expect(page.locator(NOT_TRUSTED_SELECTOR)).toHaveCount(1);
+  });
+});
diff --git a/galata/test/jupyterlab/notebooks/code_notebook.ipynb b/galata/test/jupyterlab/notebooks/code_notebook.ipynb
new file mode 100644
index 000000000000..df097ac7060b
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/code_notebook.ipynb
@@ -0,0 +1,37 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "a = 1\n",
+    "b = 2\n",
+    "c = a + b\n",
+    "print(c == (a + b))"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/galata/test/jupyterlab/notebooks/code_script.py b/galata/test/jupyterlab/notebooks/code_script.py
new file mode 100644
index 000000000000..79ee58176a9e
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/code_script.py
@@ -0,0 +1,4 @@
+a = 1
+b = 2
+c = a + b
+print(c == (a + b))
diff --git a/galata/test/jupyterlab/notebooks/completer_panel.py b/galata/test/jupyterlab/notebooks/completer_panel.py
new file mode 100644
index 000000000000..13208232c538
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/completer_panel.py
@@ -0,0 +1,15 @@
+def option_1():
+    """Documentation of 1st option.
+
+    This docstring is intentionally long to fill the documentation panel box.
+
+    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur vel
+    auctor felis. Phasellus non risus maximus tortor molestie consectetur.
+    Suspendisse in mauris eget nunc imperdiet elementum. Morbi consequat velit
+    at elit suscipit, quis placerat est vulputate. Ut semper leo et fermentum
+    gravida. Cras dui nisl, varius et lectus quis, maximus facilisis justo.
+    """
+
+
+def option_2():
+    """Documentation of 2nd option."""
diff --git a/galata/test/jupyterlab/notebooks/css_js_injection.ipynb b/galata/test/jupyterlab/notebooks/css_js_injection.ipynb
new file mode 100644
index 000000000000..d0c89fa51598
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/css_js_injection.ipynb
@@ -0,0 +1,489 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "4c296a32-1a0c-40e9-8e44-696db2c25eef",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/markdown": [
+       "[local link](#Title)"
+      ],
+      "text/plain": [
+       "<IPython.core.display.Markdown object>"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "# dummy\n",
+    "from IPython.display import Markdown\n",
+    "\n",
+    "Markdown('[local link](#Title)')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "f075900d-442f-40b3-842d-9575568d434b",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    ""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "f075910d-442f-40b3-842d-9575568d434b",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    ""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "f075900d-442f-40b3-842d-9575569d434b",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    "\n",
+    ""
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "id": "38df214e-2057-446e-b325-4e8c91d9232b",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<style>\n",
+       "    .jp-Notebook-cell { padding-left: 100px; }\n",
+       "    .jp-Notebook-cell::after { content: 'CSS ::after element'; }\n",
+       "</style>\n"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "%%html\n",
+    "<style>\n",
+    "    .jp-Notebook-cell { padding-left: 100px; }\n",
+    "    .jp-Notebook-cell::after { content: 'CSS ::after element'; }\n",
+    "</style>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "id": "94bab22b-5cfa-40fa-bef8-912a2311e5d6",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "<script type=\"module\">\n",
+       "setInterval(() => {\n",
+       "    const injected = document.body.querySelectorAll('[data-origin=\"html\"]');\n",
+       "    for(const span of injected) {\n",
+       "        span.remove();\n",
+       "    }\n",
+       "    const cells = document.body.querySelectorAll('.jp-Notebook-cell');\n",
+       "    for(const cell of cells) {\n",
+       "        cell.insertAdjacentHTML('beforeend', '<span data-origin=\"html\">JavaScript injected from HTML</span>')\n",
+       "    }\n",
+       "}, 300)\n",
+       "</script>\n"
+      ],
+      "text/plain": [
+       "<IPython.core.display.HTML object>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "%%html\n",
+    "<script type=\"module\">\n",
+    "setInterval(() => {\n",
+    "    const injected = document.body.querySelectorAll('[data-origin=\"html\"]');\n",
+    "    for(const span of injected) {\n",
+    "        span.remove();\n",
+    "    }\n",
+    "    const cells = document.body.querySelectorAll('.jp-Notebook-cell');\n",
+    "    for(const cell of cells) {\n",
+    "        cell.insertAdjacentHTML('beforeend', '<span data-origin=\"html\">JavaScript injected from HTML</span>')\n",
+    "    }\n",
+    "}, 300)\n",
+    "</script>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "1cc90740-d880-497a-911f-004ae49bb249",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/javascript": [
+       "setInterval(() => {\n",
+       "    const injected = document.body.querySelectorAll('[data-origin=\"javascript\"]');\n",
+       "    for(const span of injected) {\n",
+       "        span.remove();\n",
+       "    }\n",
+       "    const cells = document.body.querySelectorAll('.jp-Notebook-cell');\n",
+       "    for(const cell of cells) {\n",
+       "        cell.insertAdjacentHTML('afterbegin', '<span data-origin=\"javascript\">JavaScript injected header</span>')\n",
+       "    }\n",
+       "}, 300)\n"
+      ],
+      "text/plain": [
+       "<IPython.core.display.Javascript object>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "%%javascript\n",
+    "setInterval(() => {\n",
+    "    const injected = document.body.querySelectorAll('[data-origin=\"javascript\"]');\n",
+    "    for(const span of injected) {\n",
+    "        span.remove();\n",
+    "    }\n",
+    "    const cells = document.body.querySelectorAll('.jp-Notebook-cell');\n",
+    "    for(const cell of cells) {\n",
+    "        cell.insertAdjacentHTML('afterbegin', '<span data-origin=\"javascript\">JavaScript injected header</span>')\n",
+    "    }\n",
+    "}, 300)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.15"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/jupyterlab/notebooks/image_notebook.ipynb b/galata/test/jupyterlab/notebooks/image_notebook.ipynb
new file mode 100644
index 000000000000..f049cf76a5df
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/image_notebook.ipynb
@@ -0,0 +1,44 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from IPython.display import Image\n",
+    "\n",
+    "global_img = Image(\"WidgetArch.png\")\n",
+    "\n",
+    "\n",
+    "def fc():\n",
+    "    local_img = Image(\"WidgetArch.png\")\n",
+    "    pass\n",
+    "\n",
+    "\n",
+    "fc()"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.0"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}
diff --git a/galata/test/jupyterlab/notebooks/output_scrolling.ipynb b/galata/test/jupyterlab/notebooks/output_scrolling.ipynb
new file mode 100644
index 000000000000..34cf548e857c
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/output_scrolling.ipynb
@@ -0,0 +1,96 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "4315a064-fc29-4183-81b6-fdea37c02102",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "line\n",
+      "\n"
+     ]
+    }
+   ],
+   "source": [
+    "print('line\\n' * 20)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "1782c124-9e18-4864-b457-acb7a4186105",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "multiple\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "'outputs'"
+      ]
+     },
+     "execution_count": 2,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "print('multiple')\n",
+    "'outputs'"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/jupyterlab/notebooks/scroll.ipynb b/galata/test/jupyterlab/notebooks/scroll.ipynb
new file mode 100644
index 000000000000..1767fd2a1c09
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/scroll.ipynb
@@ -0,0 +1,188 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "dfc41e08-3eb7-4331-8521-37bf862b3fba",
+   "metadata": {},
+   "source": [
+    "- <a href='#Last-cell'>last cell using heading, legacy format</a>\n",
+    "- <a href='#heading=Last-cell'>last cell using heading, explicit fragment</a>\n",
+    "- <a href='#cell-id=fabaec1b-f66d-40e1-82f3-641743d521e0'>last cell using cell identifier</a>"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "92736779-fc45-4dad-8fdb-ecba14d79e47",
+   "metadata": {},
+   "source": [
+    "- <a href='#Penultimate-cell-=-this'>penultimate cell using heading, legacy format</a>\n",
+    "- <a href='#heading=Penultimate-cell-=-this'>penultimate cell using heading, explicit fragment</a>"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "4a7a7bbe-bf00-4a94-b961-c177a2d2e25f",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ceaf9aff-1445-456b-adb4-62a2b9f5d52e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "01aee689-9192-4b8c-99e7-2234d1bfebdb",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8662ce35-86ed-4e80-98dd-93cdc1d087b8",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c64e8a12-9488-4d1a-bf3a-dc47c3061dce",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "14f5b78f-71d1-4834-8481-ccec72e331cf",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d66568a7-47cd-4bf3-bd48-bca474c7a29a",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "89ac20ea-0936-4bc9-88f8-f39c97ef045e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "13cc369b-04ac-4c86-8ad1-2417c500c3e2",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "19d22c7f-0d2f-4ef9-ae76-2d94edaf6924",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5c39a47d-5aac-4d60-b3fd-78213e55ddf9",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "c390f49a-96cf-424d-a58c-1bc102c30088",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "3abe47af-1f73-4b57-b918-24f560649f4e",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e943cf2a-4e4c-4688-8b4f-56f758849ddd",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "78668df9-9e32-4295-8878-604b521802d4",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "87ef8dfb-c49d-4bc4-8828-7bbed89bb40b",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "markdown",
+   "id": "1c5beb44-6b15-4c73-a9ed-b4c994ebd9d1",
+   "metadata": {},
+   "source": [
+    "# Penultimate cell = this"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "fabaec1b-f66d-40e1-82f3-641743d521e0",
+   "metadata": {},
+   "source": [
+    "# Last cell"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/jupyterlab/notebooks/search.ipynb b/galata/test/jupyterlab/notebooks/search.ipynb
new file mode 100644
index 000000000000..832fd81cc46a
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/search.ipynb
@@ -0,0 +1,143 @@
+{
+ "cells": [
+  {
+   "cell_type": "raw",
+   "id": "41e14fee-d7c9-4454-885d-2518d4ec848c",
+   "metadata": {},
+   "source": [
+    "Test with one notebook withr\n",
+    "\n",
+    "\n",
+    "This is a multi line with hits with"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "5dc41292-8540-4a89-bc06-f812cc43c66e",
+   "metadata": {
+    "tags": []
+   },
+   "source": [
+    "# Test with one notebook withr\n",
+    "\n",
+    "This is a [multi line](https://jupyter.org \"with title\") With hits with"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "1c89499d-dee1-43b7-b42c-b18a96cf9c4d",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [],
+   "source": [
+    "outputs = [\n",
+    "    {\"text/plain\": \"Plain text with\\nmultiple with hits.\"},\n",
+    "    {\n",
+    "        \"application/vnd.jupyter.stderr\": \"\\u001b[0;36m  File \\u001b[0;32m\\\"/tmp/ipykernel_20145/2152808028.py\\\"\\u001b[0;36m, line \\u001b[0;32m4\\u001b[0m\\n\\u001b[0;31m                     This is a multi line with hits witH\\u001b[0m\\n\\u001b[0m              \\            ^\\u001b[0m\\n\\u001b[0;31mSyntaxError\\u001b[0m\\u001b[0;31m:\\u001b[0m invalid syntax\\n\"\n",
+    "    },\n",
+    "    {\"text/markdown\": \"# Plain text with\\nmultiple with hits.\"},\n",
+    "    {\n",
+    "        \"text/html\": \"<h2 title=\\\"Title with a with\\\">Plain text with</h2><p>multiple <span style=\\\"color: orange;\\\">with hits.</span></p>\"\n",
+    "    },\n",
+    "]"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "04e70d25-05a0-44ae-bcc7-04fab2bd1f55",
+   "metadata": {},
+   "source": [
+    "# Title"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "5b715d07-c624-4884-bb98-f9ea130d4ca9",
+   "metadata": {
+    "tags": []
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "Plain text with\n",
+       "multiple with hits."
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "application/vnd.jupyter.stderr": "\u001b[0;36m  File \u001b[0;32m\"/tmp/ipykernel_20145/2152808028.py\"\u001b[0;36m, line \u001b[0;32m4\u001b[0m\n\u001b[0;31m                     This is a multi line with hits with\u001b[0m\n\u001b[0m                          ^\u001b[0m\n\u001b[0;31mSyntaxError\u001b[0m\u001b[0;31m:\u001b[0m invalid syntax\n"
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/markdown": [
+       "# Plain text with\n",
+       "multiple with hits."
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    },
+    {
+     "data": {
+      "text/html": [
+       "<h2 title=\"Title with a with\">Plain text with</h2><p>multiple <span style=\"color: orange;\">with hits.</span></p>"
+      ]
+     },
+     "metadata": {},
+     "output_type": "display_data"
+    }
+   ],
+   "source": [
+    "from IPython.display import display\n",
+    "\n",
+    "display(*outputs, raw=True)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "4063ad43-470b-436f-b40b-c31008e2b0f5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from time import sleep\n",
+    "\n",
+    "for i in range(3):\n",
+    "    sleep(1)\n",
+    "    print(\"with\")\n",
+    "    print(\"ith with ith\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/jupyterlab/notebooks/simple_notebook.ipynb b/galata/test/jupyterlab/notebooks/simple_notebook.ipynb
index 9340c535f32a..8927f343a2fc 100644
--- a/galata/test/jupyterlab/notebooks/simple_notebook.ipynb
+++ b/galata/test/jupyterlab/notebooks/simple_notebook.ipynb
@@ -55,6 +55,7 @@
    "outputs": [],
    "source": [
     "import math\n",
+    "\n",
     "math.pi / 2"
    ]
   }
diff --git a/galata/test/jupyterlab/notebooks/toc_notebook.ipynb b/galata/test/jupyterlab/notebooks/toc_notebook.ipynb
index ff04a41919f2..0547781b4fee 100644
--- a/galata/test/jupyterlab/notebooks/toc_notebook.ipynb
+++ b/galata/test/jupyterlab/notebooks/toc_notebook.ipynb
@@ -1,6 +1,23 @@
 {
  "cells": [
   {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Out of order sub title 0"
+   ]
+  },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Out of order sub sub title 0a"
+   ]
+  },
+  {
+   "attachments": {},
    "cell_type": "markdown",
    "metadata": {},
    "source": [
@@ -18,35 +35,50 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Sub sub title"
+    "Markdown cell without heading"
    ]
   },
   {
-   "cell_type": "markdown",
+   "cell_type": "code",
+   "execution_count": null,
    "metadata": {},
+   "outputs": [],
    "source": [
-    "## Sub title 2"
+    "from time import sleep\n",
+    "\n",
+    "sleep(2)"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Sub sub title 1"
+    "# Sub title 2a"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Sub sub title 2"
+    "### Sub sub title"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "sleep(2)"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## IPython: tools for interactive and parallel computing in Python."
+    "## Sub title 2\n",
+    "\n",
+    "### Very long sub title in same cell"
    ]
   },
   {
@@ -55,14 +87,14 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "from IPython.display import Image"
+    "sleep(1)"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Image"
+    "## Multiple output types"
    ]
   },
   {
@@ -71,7 +103,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "Image(\"WidgetArch.png\", width=70, height=100)"
+    "from IPython.display import display"
    ]
   },
   {
@@ -80,7 +112,21 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "2 + 2"
+    "outputs = [\n",
+    "    {\"text/markdown\": \"# Markdown title\\nmultiple with hits.\"},\n",
+    "    {\n",
+    "        \"text/html\": \"<h2>HTML title</h2><p>multiple <span style=\\\"color: orange;\\\">with hits.</span></p>\"\n",
+    "    },\n",
+    "]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "display(*outputs, raw=True)"
    ]
   },
   {
@@ -90,6 +136,7 @@
    "outputs": [],
    "source": [
     "import math\n",
+    "\n",
     "math.pi / 2"
    ]
   }
@@ -112,10 +159,10 @@
    "pygments_lexer": "ipython3",
    "version": "3.9.5"
   },
-  "toc-autonumbering": false,
-  "toc-showcode": false,
-  "toc-showmarkdowntxt": false,
-  "toc-showtags": false
+  "toc": {
+   "base_numbering": 2,
+   "skip_h1_title": true
+  }
  },
  "nbformat": 4,
  "nbformat_minor": 4
diff --git a/galata/test/jupyterlab/notebooks/toc_scrolling_notebook.ipynb b/galata/test/jupyterlab/notebooks/toc_scrolling_notebook.ipynb
new file mode 100644
index 000000000000..65dbcfc00a50
--- /dev/null
+++ b/galata/test/jupyterlab/notebooks/toc_scrolling_notebook.ipynb
@@ -0,0 +1,110 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "e86bd77e-7e48-4941-8cb9-72410d8256aa",
+   "metadata": {},
+   "source": [
+    "# regular notebook (not myst)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d06cb0c2-483b-4781-b283-8212ea667823",
+   "metadata": {},
+   "source": [
+    "## a subtitle\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8541f40d-4f71-48fc-92d4-708063b476ec",
+   "metadata": {},
+   "source": [
+    "## another one\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d896a643-8998-48cf-8a4f-ec2965656e73",
+   "metadata": {},
+   "source": [
+    "## yet another\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a089ea8f-02b8-4b09-af17-aca38782b3c7",
+   "metadata": {},
+   "source": [
+    "## let's change\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6f9ad439-3dc0-410c-9d98-2a9356f839a3",
+   "metadata": {},
+   "source": [
+    "## to a less predictible\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "a783fb23-b79c-40c7-b8fe-be597130a3ae",
+   "metadata": {},
+   "source": [
+    "## pattern in picking names\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4e2ae1be-078e-4bf6-974b-6ea6750a74a9",
+   "metadata": {},
+   "source": [
+    "## the last one\n",
+    "\n",
+    "Where does it come from?\n",
+    "Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of \"de Finibus Bonorum et Malorum\" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, \"Lorem ipsum dolor sit amet..\", comes from a line in section 1.10.32.\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.11.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/galata/test/jupyterlab/notebooks/vega_notebook.ipynb b/galata/test/jupyterlab/notebooks/vega_notebook.ipynb
index 9a7f56bf4b36..f66a322e1a6a 100644
--- a/galata/test/jupyterlab/notebooks/vega_notebook.ipynb
+++ b/galata/test/jupyterlab/notebooks/vega_notebook.ipynb
@@ -8,27 +8,34 @@
    "source": [
     "from IPython.display import display\n",
     "\n",
-    "display({\n",
-    "    \"application/vnd.vegalite.v3+json\": {\n",
-    "        \"$schema\": \"https://vega.github.io/schema/vega-lite/v3.json\",\n",
-    "        \"description\": \"A simple bar chart with embedded data.\",\n",
-    "        \"data\": {\n",
-    "            \"values\": [\n",
-    "                {\"a\": \"A\", \"b\": 28}, {\"a\": \"B\", \"b\": 55}, {\"a\": \"C\", \"b\": 43},\n",
-    "                {\"a\": \"D\", \"b\": 91}, {\"a\": \"E\", \"b\": 81}, {\"a\": \"F\", \"b\": 53},\n",
-    "                {\"a\": \"G\", \"b\": 19}, {\"a\": \"H\", \"b\": 87}, {\"a\": \"I\", \"b\": 52}\n",
-    "            ]\n",
-    "        },\n",
-    "        \"mark\": \"bar\",\n",
-    "        \"encoding\": {\n",
-    "            \"x\": {\"field\": \"a\", \"type\": \"ordinal\"},\n",
-    "            \"y\": {\"field\": \"b\", \"type\": \"quantitative\"}\n",
-    "        },\n",
-    "        \"metadata\": {\n",
-    "            \"theme\": \"dark\"\n",
-    "        },\n",
-    "    }\n",
-    "}, raw=True)"
+    "display(\n",
+    "    {\n",
+    "        \"application/vnd.vegalite.v3+json\": {\n",
+    "            \"$schema\": \"https://vega.github.io/schema/vega-lite/v3.json\",\n",
+    "            \"description\": \"A simple bar chart with embedded data.\",\n",
+    "            \"data\": {\n",
+    "                \"values\": [\n",
+    "                    {\"a\": \"A\", \"b\": 28},\n",
+    "                    {\"a\": \"B\", \"b\": 55},\n",
+    "                    {\"a\": \"C\", \"b\": 43},\n",
+    "                    {\"a\": \"D\", \"b\": 91},\n",
+    "                    {\"a\": \"E\", \"b\": 81},\n",
+    "                    {\"a\": \"F\", \"b\": 53},\n",
+    "                    {\"a\": \"G\", \"b\": 19},\n",
+    "                    {\"a\": \"H\", \"b\": 87},\n",
+    "                    {\"a\": \"I\", \"b\": 52},\n",
+    "                ]\n",
+    "            },\n",
+    "            \"mark\": \"bar\",\n",
+    "            \"encoding\": {\n",
+    "                \"x\": {\"field\": \"a\", \"type\": \"ordinal\"},\n",
+    "                \"y\": {\"field\": \"b\", \"type\": \"quantitative\"},\n",
+    "            },\n",
+    "            \"metadata\": {\"theme\": \"dark\"},\n",
+    "        }\n",
+    "    },\n",
+    "    raw=True,\n",
+    ")"
    ]
   }
  ],
diff --git a/galata/test/jupyterlab/notification.test.ts b/galata/test/jupyterlab/notification.test.ts
index 108be8714681..9771f326dda9 100644
--- a/galata/test/jupyterlab/notification.test.ts
+++ b/galata/test/jupyterlab/notification.test.ts
@@ -72,9 +72,11 @@ test.describe('Toast', () => {
 
     const handle = await page.waitForSelector('.Toastify__toast');
 
-    expect(await handle.screenshot()).toMatchSnapshot({
-      name: `notification-with-actions.png`
-    });
+    expect(await handle.screenshot({ animations: 'disabled' })).toMatchSnapshot(
+      {
+        name: `notification-with-actions.png`
+      }
+    );
 
     await Promise.all([
       handle.waitForElementState('hidden'),
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-accent-action-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-accent-action-jupyterlab-linux.png
index 8b3ffc58a26a..88c5456de3d4 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-accent-action-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-accent-action-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-center-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-center-jupyterlab-linux.png
index 1e3b945a1b7d..780928833080 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-center-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-center-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-action-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-action-jupyterlab-linux.png
index 8b3ffc58a26a..5ffb7d73a7cc 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-action-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-action-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-jupyterlab-linux.png
index dc8eb604acec..e863b33b84f7 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-default-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-error-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-error-jupyterlab-linux.png
index e006474caa03..19de89749a4d 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-error-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-error-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-in-progress-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-in-progress-jupyterlab-linux.png
index 72ca2d9f50b9..a51cf2ad218f 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-in-progress-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-in-progress-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-info-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-info-jupyterlab-linux.png
index 75bf923ed2d8..caa1c69bf1cd 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-info-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-info-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-link-action-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-link-action-jupyterlab-linux.png
index b17f6ed5aa5b..a802d065560e 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-link-action-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-link-action-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-success-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-success-jupyterlab-linux.png
index ca1816ceb04c..c7d1ff1884a7 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-success-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-success-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warn-action-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warn-action-jupyterlab-linux.png
index 8b3ffc58a26a..e189e3e05186 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warn-action-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warn-action-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warning-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warning-jupyterlab-linux.png
index bb202beecb23..fb9ec3649cfd 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warning-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-warning-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-with-actions-jupyterlab-linux.png b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-with-actions-jupyterlab-linux.png
index eb2c93cf482a..81229bfe4835 100644
Binary files a/galata/test/jupyterlab/notification.test.ts-snapshots/notification-with-actions-jupyterlab-linux.png and b/galata/test/jupyterlab/notification.test.ts-snapshots/notification-with-actions-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/output-scrolling.test.ts b/galata/test/jupyterlab/output-scrolling.test.ts
new file mode 100644
index 000000000000..fc27a406ed8e
--- /dev/null
+++ b/galata/test/jupyterlab/output-scrolling.test.ts
@@ -0,0 +1,78 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { expect } from '@playwright/test';
+import * as path from 'path';
+
+const fileName = 'output_scrolling.ipynb';
+
+const cellSelector = '[role="main"] >> .jp-NotebookPanel >> .jp-Cell';
+
+test.describe('Output Scrolling', () => {
+  test.beforeEach(async ({ page, tmpPath }) => {
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+  });
+
+  test.afterEach(async ({ page, tmpPath }) => {
+    await page.contents.deleteDirectory(tmpPath);
+  });
+
+  test('Scrolling mode', async ({ page }) => {
+    await page.evaluate(() => {
+      return window.jupyterapp.commands.execute(
+        'notebook:enable-output-scrolling'
+      );
+    });
+    await page.notebook.selectCells(0);
+    await expect(page.locator(`${cellSelector} >> nth=0`)).toHaveClass(
+      /jp-mod-outputsScrolled/
+    );
+
+    const cell = await page.notebook.getCell(0);
+
+    expect(await (await cell.$('.jp-OutputArea')).screenshot()).toMatchSnapshot(
+      'cell-output-area-scrolling-mode.png'
+    );
+
+    await page.evaluate(() => {
+      return window.jupyterapp.commands.execute(
+        'notebook:disable-output-scrolling'
+      );
+    });
+    await expect(page.locator(`${cellSelector} >> nth=0`)).not.toHaveClass(
+      /jp-mod-outputsScrolled/
+    );
+  });
+
+  test('Switching with prompt overlay', async ({ page }) => {
+    await page
+      .locator(`${cellSelector} >> nth=1 >> .jp-OutputArea-promptOverlay`)
+      .hover();
+    const cell = await page.notebook.getCell(1);
+    expect(await cell.screenshot()).toMatchSnapshot(
+      'prompt-overlay-hover-normal.png'
+    );
+    await page.click(
+      `${cellSelector} >> nth=1 >> .jp-OutputArea-promptOverlay`
+    );
+    await expect(page.locator(`${cellSelector} >> nth=1`)).toHaveClass(
+      /jp-mod-outputsScrolled/
+    );
+    expect(await cell.screenshot()).toMatchSnapshot(
+      'prompt-overlay-hover-scroll.png'
+    );
+    await page.click(
+      `${cellSelector} >> nth=1 >> .jp-OutputArea-promptOverlay`
+    );
+    await expect(page.locator(`${cellSelector} >> nth=1`)).not.toHaveClass(
+      /jp-mod-outputsScrolled/
+    );
+  });
+});
diff --git a/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/cell-output-area-scrolling-mode-jupyterlab-linux.png b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/cell-output-area-scrolling-mode-jupyterlab-linux.png
new file mode 100644
index 000000000000..993cafa056fc
Binary files /dev/null and b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/cell-output-area-scrolling-mode-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-normal-jupyterlab-linux.png b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-normal-jupyterlab-linux.png
new file mode 100644
index 000000000000..ad0f85ac2956
Binary files /dev/null and b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-normal-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-scroll-jupyterlab-linux.png b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-scroll-jupyterlab-linux.png
new file mode 100644
index 000000000000..e018c9b55097
Binary files /dev/null and b/galata/test/jupyterlab/output-scrolling.test.ts-snapshots/prompt-overlay-hover-scroll-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/outputarea-stdin.test.ts b/galata/test/jupyterlab/outputarea-stdin.test.ts
new file mode 100644
index 000000000000..2efeb9427bc0
--- /dev/null
+++ b/galata/test/jupyterlab/outputarea-stdin.test.ts
@@ -0,0 +1,55 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+
+test.describe('Stdin for ipdb', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.notebook.createNew();
+  });
+
+  test('Stdin history search', async ({ page }) => {
+    await page.notebook.setCell(0, 'code', 'raise');
+    await page.notebook.addCell('code', '%debug');
+
+    // Run first cell and proceed to the second one.
+    await page.notebook.runCell(0);
+
+    // Run the selected (second) cell without proceeding and without waiting
+    // for it to complete (as it should stay waiting for input).
+    await page.keyboard.press('Control+Enter');
+
+    // enter a bunch of nonsense commands into the stdin attached to ipdb
+    await page.waitForSelector('.jp-Stdin-input');
+    await page.keyboard.insertText('foofoo');
+    await page.keyboard.press('Enter');
+
+    await page.waitForSelector('.jp-Stdin-input');
+    await page.keyboard.insertText('barbar');
+    await page.keyboard.press('Enter');
+
+    await page.waitForSelector('.jp-Stdin-input');
+    await page.keyboard.insertText('bazbaz');
+    await page.keyboard.press('Enter');
+
+    // search for the first nonsense command
+    await page.waitForSelector('.jp-Stdin-input');
+    await page.keyboard.insertText('foo');
+    await page.keyboard.press('Control+ArrowUp');
+
+    // Mask out random kernel temporary file path
+    // e.g. `/tmp/ipykernel_104185/2235509928.py`
+    const filePath = await page.$(
+      '.jp-OutputArea-output :text-matches("/tmp/")'
+    );
+    await filePath.evaluate(node => (node.textContent = '/tmp/masked.py'));
+
+    const imageName = 'stdin-history-search.png';
+    const cell = await page.notebook.getCell(1);
+    expect(await cell.screenshot()).toMatchSnapshot(imageName);
+
+    // Check that the input remains focused and cursor is at the end.
+    await page.keyboard.insertText('x');
+    await expect(page.locator('.jp-Stdin-input')).toHaveValue('foofoox');
+  });
+});
diff --git a/galata/test/jupyterlab/outputarea-stdin.test.ts-snapshots/stdin-history-search-jupyterlab-linux.png b/galata/test/jupyterlab/outputarea-stdin.test.ts-snapshots/stdin-history-search-jupyterlab-linux.png
new file mode 100644
index 000000000000..414e46ef5362
Binary files /dev/null and b/galata/test/jupyterlab/outputarea-stdin.test.ts-snapshots/stdin-history-search-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/print.test.ts b/galata/test/jupyterlab/print.test.ts
new file mode 100644
index 000000000000..02b04c0fde33
--- /dev/null
+++ b/galata/test/jupyterlab/print.test.ts
@@ -0,0 +1,58 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, test } from '@jupyterlab/galata';
+import * as path from 'path';
+
+test.use({ autoGoto: false });
+
+const fileName = 'simple_notebook.ipynb';
+
+test.describe('Print layout', () => {
+  test('Notebook', async ({ page, tmpPath }) => {
+    await page.emulateMedia({ media: 'print' });
+    await page.contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+    await page.contents.uploadFile(
+      path.resolve(__dirname, './notebooks/WidgetArch.png'),
+      `${tmpPath}/WidgetArch.png`
+    );
+
+    await page.goto();
+
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+    await page.getByText('Python 3 (ipykernel) | Idle').waitFor();
+
+    await page.notebook.run();
+
+    let printedNotebookURL = '';
+    await Promise.all([
+      page.waitForRequest(
+        async request => {
+          const url = request.url();
+          if (url.match(/\/nbconvert\//) !== null) {
+            printedNotebookURL = url;
+            return true;
+          }
+          return false;
+        },
+        { timeout: 1000 }
+      ),
+      page.keyboard.press('Control+P')
+    ]);
+
+    const newPage = await page.context().newPage();
+
+    await newPage.goto(printedNotebookURL, { waitUntil: 'networkidle' });
+
+    // Wait until MathJax loading message disappears
+    const mathJaxMessage = newPage.locator('#MathJax_Message');
+    await expect(mathJaxMessage).toHaveCount(1);
+    await mathJaxMessage.waitFor({ state: 'hidden' });
+
+    expect(await newPage.screenshot()).toMatchSnapshot('printed-notebook.png');
+  });
+});
diff --git a/galata/test/jupyterlab/print.test.ts-snapshots/printed-notebook-jupyterlab-linux.png b/galata/test/jupyterlab/print.test.ts-snapshots/printed-notebook-jupyterlab-linux.png
new file mode 100644
index 000000000000..e513969fb390
Binary files /dev/null and b/galata/test/jupyterlab/print.test.ts-snapshots/printed-notebook-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/search.test.ts b/galata/test/jupyterlab/search.test.ts
index 466146d53dff..2bda65c1a517 100644
--- a/galata/test/jupyterlab/search.test.ts
+++ b/galata/test/jupyterlab/search.test.ts
@@ -13,13 +13,21 @@ id eleifend eros. In non odio in lorem iaculis sollicitudin. In faucibus ante ut
 arcu fringilla interdum. Maecenas elit nulla, imperdiet nec blandit et, consequat
 ut elit.`;
 
-test('Search with a text', async ({ page }) => {
-  const searchText = 'ipsum';
-  await page.menu.clickMenuItem('File>New>Text File');
+function getSelectionRange(textarea: HTMLTextAreaElement) {
+  return {
+    start: textarea.selectionStart,
+    end: textarea.selectionEnd
+  };
+}
 
-  await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+test.beforeEach(async ({ page }) => {
+  await page.menu.clickMenuItem('File>New>Text File');
+  await page.locator(`[role="main"] >> text=${DEFAULT_NAME}`).waitFor();
+  await page.locator('[role="main"] .cm-content').fill(TEST_FILE_CONTENT);
+});
 
-  await page.fill('[role="main"] >> textarea', TEST_FILE_CONTENT);
+test('Search with a text', async ({ page }) => {
+  const searchText = 'ipsum';
 
   await page.evaluate(async searchText => {
     await window.jupyterapp.commands.execute('documentsearch:start', {
@@ -27,19 +35,12 @@ test('Search with a text', async ({ page }) => {
     });
   }, searchText);
 
-  expect(
-    await page.locator('input.jp-DocumentSearch-input').inputValue()
-  ).toEqual(searchText);
+  await expect(page.locator('[placeholder="Find"]')).toHaveValue(searchText);
 });
 
 test('Search with a text and replacement', async ({ page }) => {
   const searchText = 'ipsum';
   const replaceText = 'banana';
-  await page.menu.clickMenuItem('File>New>Text File');
-
-  await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
-
-  await page.fill('[role="main"] >> textarea', TEST_FILE_CONTENT);
 
   await page.evaluate(
     async ([searchText, replaceText]) => {
@@ -54,10 +55,42 @@ test('Search with a text and replacement', async ({ page }) => {
     [searchText, replaceText]
   );
 
-  expect(
-    await page.locator('input.jp-DocumentSearch-input').inputValue()
-  ).toEqual(searchText);
-  expect(
-    await page.locator('input.jp-DocumentSearch-replace-entry').inputValue()
-  ).toEqual(replaceText);
+  await expect(page.locator('[placeholder="Find"]')).toHaveValue(searchText);
+  await expect(page.locator('[placeholder="Replace"]')).toHaveValue(
+    replaceText
+  );
+});
+
+test('Populate search box with selected text', async ({ page }) => {
+  const imageName = 'text-editor-search-from-selection.png';
+
+  // Enter first cell
+  await page.notebook.enterCellEditingMode(0);
+
+  // Go to first line
+  await page.keyboard.press('PageUp');
+  // Select first line
+  await page.keyboard.press('Home');
+  await page.keyboard.press('Control+Shift+ArrowRight');
+  // Open search box
+  await page.keyboard.press('Control+f');
+
+  // Expect it to be populated with the first word
+  const inputWithFirstWord = page.locator(
+    '[placeholder="Find"] >> text="Lorem"'
+  );
+  await expect(inputWithFirstWord).toBeVisible();
+  await expect(inputWithFirstWord).toBeFocused();
+  // Expect the newly set text to be selected
+  expect(await inputWithFirstWord.evaluate(getSelectionRange)).toStrictEqual({
+    start: 0,
+    end: 5
+  });
+
+  // Expect the first match to be highlighted
+  await page.waitForSelector('text=1/2');
+
+  const tabHandle = await page.activity.getPanel(DEFAULT_NAME);
+
+  expect(await tabHandle.screenshot()).toMatchSnapshot(imageName);
 });
diff --git a/galata/test/jupyterlab/search.test.ts-snapshots/text-editor-search-from-selection-jupyterlab-linux.png b/galata/test/jupyterlab/search.test.ts-snapshots/text-editor-search-from-selection-jupyterlab-linux.png
new file mode 100644
index 000000000000..5daaf0614eae
Binary files /dev/null and b/galata/test/jupyterlab/search.test.ts-snapshots/text-editor-search-from-selection-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/settings.test.ts b/galata/test/jupyterlab/settings.test.ts
index f3d519802171..d67f37827b24 100644
--- a/galata/test/jupyterlab/settings.test.ts
+++ b/galata/test/jupyterlab/settings.test.ts
@@ -18,6 +18,18 @@ test('Open the settings editor with a specific search query', async ({
   ).toEqual('Command Palette');
 
   await expect(page.locator('.jp-SettingsForm')).toHaveCount(1);
+
+  const pluginList = page.locator('.jp-PluginList');
+
+  expect(await pluginList.screenshot()).toMatchSnapshot(
+    'settings-plugin-list.png'
+  );
+
+  const settingsPanel = page.locator('.jp-SettingsPanel');
+
+  expect(await settingsPanel.screenshot()).toMatchSnapshot(
+    'settings-panel.png'
+  );
 });
 
 test.describe('change font-size', () => {
@@ -30,7 +42,7 @@ test.describe('change font-size', () => {
   const createMarkdownFile = async page => {
     await page.waitForSelector('div[role="main"] >> text=Launcher');
     await page.click('.jp-LauncherCard[title="Create a new markdown file"]');
-    return await page.waitForSelector('.jp-FileEditor .CodeMirror-code');
+    return await page.waitForSelector('.jp-FileEditor .cm-content');
   };
   const inputMarkdownFile = async (page, markdownFile) => {
     await markdownFile.focus();
@@ -40,7 +52,7 @@ test.describe('change font-size', () => {
   };
   const getCodeCellFontSize = async page => {
     const cellElement = await page.$(
-      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .CodeMirror-line'
+      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .cm-line'
     );
     const computedStyle = await page.evaluate(
       el => getComputedStyle(el),
@@ -85,7 +97,7 @@ test.describe('change font-size', () => {
     await page.waitForSelector('.jp-Notebook-cell');
 
     const cellElement = await page.$(
-      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .CodeMirror-line'
+      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .cm-line'
     );
     const computedStyle = await page.evaluate(
       el => getComputedStyle(el),
@@ -103,7 +115,7 @@ test.describe('change font-size', () => {
     await page.waitForSelector('.jp-Notebook-cell');
 
     const cellElement = await page.$(
-      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .CodeMirror-line'
+      'div.lm-Widget.jp-Cell.jp-CodeCell.jp-Notebook-cell.jp-mod-noOutputs.jp-mod-active.jp-mod-selected .cm-line'
     );
     const computedStyle = await page.evaluate(
       el => getComputedStyle(el),
@@ -116,13 +128,13 @@ test.describe('change font-size', () => {
     const markdownFile = await createMarkdownFile(page);
     await inputMarkdownFile(page, markdownFile);
     await page.evaluate(() => {
-      return window.jupyterapp.commands.execute('fileeditor:markdown-preview');
+      return window.galata.app.commands.execute('fileeditor:markdown-preview');
     });
     const fontSize = await getMarkdownFontSize(page);
 
     await changeCodeFontSize(page, 'Increase Content Font Size');
 
-    await page.waitForSelector('.jp-FileEditor .CodeMirror-code');
+    await page.waitForSelector('.jp-FileEditor .cm-content');
     const fileElement = await page.$('.jp-RenderedHTMLCommon');
     const computedStyle = await page.evaluate(
       el => getComputedStyle(el),
@@ -135,13 +147,13 @@ test.describe('change font-size', () => {
     const markdownFile = await createMarkdownFile(page);
     await inputMarkdownFile(page, markdownFile);
     await page.evaluate(() => {
-      return window.jupyterapp.commands.execute('fileeditor:markdown-preview');
+      return window.galata.app.commands.execute('fileeditor:markdown-preview');
     });
     const fontSize = await getMarkdownFontSize(page);
 
     await changeCodeFontSize(page, 'Decrease Content Font Size');
 
-    await page.waitForSelector('.jp-FileEditor .CodeMirror-code');
+    await page.waitForSelector('.jp-FileEditor .cm-content');
     const fileElement = await page.$('.jp-RenderedHTMLCommon');
     const computedStyle = await page.evaluate(
       el => getComputedStyle(el),
@@ -186,3 +198,31 @@ test.describe('change font-size', () => {
     expect(computedStyle.fontSize).toEqual(`${fontSize - 1}px`);
   });
 });
+
+test('Check codemirror settings can all be set at the same time.', async ({
+  page
+}) => {
+  await page.evaluate(async () => {
+    await window.jupyterapp.commands.execute('settingeditor:open', {
+      query: 'CodeMirror'
+    });
+  });
+
+  await expect(page.locator('.jp-SettingsForm')).toHaveCount(1);
+
+  const textList: Array[string] = [
+    'Code Folding',
+    'Highlight the active line',
+    'Highlight trailing white space',
+    'Highlight white space'
+  ];
+  let locators = [];
+  for (const selectText of textList) {
+    let locator = page.getByLabel(selectText);
+    await locator.click();
+    locators.push(locator);
+  }
+  for (const locator of locators) {
+    await expect(locator).toBeChecked();
+  }
+});
diff --git a/galata/test/jupyterlab/settings.test.ts-snapshots/settings-panel-jupyterlab-linux.png b/galata/test/jupyterlab/settings.test.ts-snapshots/settings-panel-jupyterlab-linux.png
new file mode 100644
index 000000000000..edecf3198e9d
Binary files /dev/null and b/galata/test/jupyterlab/settings.test.ts-snapshots/settings-panel-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/settings.test.ts-snapshots/settings-plugin-list-jupyterlab-linux.png b/galata/test/jupyterlab/settings.test.ts-snapshots/settings-plugin-list-jupyterlab-linux.png
new file mode 100644
index 000000000000..d62932bcfb4a
Binary files /dev/null and b/galata/test/jupyterlab/settings.test.ts-snapshots/settings-plugin-list-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/shortcuts.test.ts b/galata/test/jupyterlab/shortcuts.test.ts
new file mode 100644
index 000000000000..f064e1431481
--- /dev/null
+++ b/galata/test/jupyterlab/shortcuts.test.ts
@@ -0,0 +1,51 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import { expect } from '@playwright/test';
+
+const DUPLICATE_SHORTCUT_WARNING =
+  'Skipping this default shortcut because it collides with another default shortcut.';
+
+test.use({ autoGoto: false });
+
+test('Shortcut commands must exist', async ({ page }) => {
+  await page.goto();
+
+  const [shortcuts, commands] = await page.evaluate(async () => {
+    const shortcuts = window.jupyterapp.commands.keyBindings;
+    const commandIds = window.jupyterapp.commands.listCommands();
+
+    return Promise.resolve([shortcuts, commandIds]);
+  });
+
+  const missingCommands = shortcuts.filter(
+    shortcut => !commands.includes(shortcut.command)
+  );
+
+  expect(missingCommands).toEqual([]);
+});
+
+test('Shortcuts must be unique', async ({ page }) => {
+  const warnings: string[] = [];
+
+  page.on('console', message => {
+    if (message.type() === 'warning') {
+      warnings.push(message.text());
+    }
+  });
+
+  await page.goto();
+
+  expect(
+    warnings
+      .filter(s => s.startsWith(DUPLICATE_SHORTCUT_WARNING))
+      // List warning messages only once
+      .reduce((agg, message) => {
+        if (!agg.includes(message)) {
+          agg.push(message);
+        }
+        return agg;
+      }, [])
+  ).toEqual([]);
+});
diff --git a/galata/test/jupyterlab/sidebars.test.ts b/galata/test/jupyterlab/sidebars.test.ts
index d1aa7a522f5a..9ee01bba9ad5 100644
--- a/galata/test/jupyterlab/sidebars.test.ts
+++ b/galata/test/jupyterlab/sidebars.test.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expect, galata, test } from '@jupyterlab/galata';
+import { expect, galata, Handle, test } from '@jupyterlab/galata';
 
 const sidebarIds: galata.SidebarTabId[] = [
   'filebrowser',
@@ -11,6 +11,21 @@ const sidebarIds: galata.SidebarTabId[] = [
   'extensionmanager.main-view'
 ];
 
+/**
+ * Add provided text as label on first tab in given tabbar.
+ * By default we only have icons, but we should test for the
+ * styling of labels which are used downstream (e.g. sidecar).
+ */
+async function mockLabelOnFirstTab(tabbar: Handle, text: string) {
+  await tabbar.$eval(
+    '.lm-TabBar-tabLabel',
+    (node: HTMLElement, text: string) => {
+      node.innerText = text;
+    },
+    text
+  );
+}
+
 test.describe('Sidebars', () => {
   sidebarIds.forEach(sidebarId => {
     test(`Open Sidebar tab ${sidebarId}`, async ({ page }) => {
@@ -26,12 +41,51 @@ test.describe('Sidebars', () => {
     });
   });
 
-  test('Toggle Light theme', async ({ page }) => {
-    await page.theme.setDarkTheme();
+  test('File Browser has no unused rules', async ({ page }) => {
+    await page.sidebar.openTab('filebrowser');
+    const clickMenuItem = async (command): Promise<void> => {
+      const contextmenu = await page.menu.openContextMenu(
+        '.jp-DirListing-headerItem'
+      );
+      const item = await page.menu.getMenuItemInMenu(contextmenu, command);
+      await item.click();
+    };
+    await clickMenuItem('Show File Checkboxes');
+    await clickMenuItem('Show File Size Column');
+
+    await page.notebook.createNew('notebook.ipynb');
 
+    const unusedRules = await page.style.findUnusedStyleRules({
+      page,
+      fragments: ['jp-DirListing', 'jp-FileBrowser'],
+      exclude: [
+        // active during renaming
+        'jp-DirListing-editor',
+        // hidden files
+        '[data-is-dot]',
+        // filtering results
+        '.jp-DirListing-content mark',
+        // only added after resizing
+        'jp-DirListing-narrow'
+      ]
+    });
+    expect(unusedRules.length).toEqual(0);
+  });
+
+  test('Left light tabbar (with text)', async ({ page }) => {
     await page.theme.setLightTheme();
+    const imageName = 'left-light-tabbar-with-text.png';
+    const tabbar = await page.sidebar.getTabBar();
+    await mockLabelOnFirstTab(tabbar, 'File Browser');
+    expect(await tabbar.screenshot()).toMatchSnapshot(imageName.toLowerCase());
+  });
 
-    expect(await page.theme.getTheme()).toEqual('JupyterLab Light');
+  test('Right dark tabbar (with text)', async ({ page }) => {
+    await page.theme.setDarkTheme();
+    const imageName = 'right-dark-tabbar-with-text.png';
+    const tabbar = await page.sidebar.getTabBar('right');
+    await mockLabelOnFirstTab(tabbar, 'Property Inspector');
+    expect(await tabbar.screenshot()).toMatchSnapshot(imageName.toLowerCase());
   });
 
   test('Move File Browser to right', async ({ page }) => {
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/filebrowser-right-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/filebrowser-right-jupyterlab-linux.png
index ec50b59229ab..dde27caa4a09 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/filebrowser-right-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/filebrowser-right-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/left-light-tabbar-with-text-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/left-light-tabbar-with-text-jupyterlab-linux.png
new file mode 100644
index 000000000000..e0f29843ec67
Binary files /dev/null and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/left-light-tabbar-with-text-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-extensionmanager-main-view-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-extensionmanager-main-view-jupyterlab-linux.png
index a480747a0f8b..1b01d08b5d29 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-extensionmanager-main-view-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-extensionmanager-main-view-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-filebrowser-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-filebrowser-jupyterlab-linux.png
index 272445928edb..bb0522632d8d 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-filebrowser-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-filebrowser-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-property-inspector-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-property-inspector-jupyterlab-linux.png
index cbf9ad0913e8..d5e1350c6d27 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-property-inspector-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-property-inspector-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-running-sessions-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-running-sessions-jupyterlab-linux.png
index f80fe0516849..946c0496c04a 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-running-sessions-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-jp-running-sessions-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-table-of-contents-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-table-of-contents-jupyterlab-linux.png
index 0d405f7789fd..ec6ef830ceeb 100644
Binary files a/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-table-of-contents-jupyterlab-linux.png and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/opened-sidebar-table-of-contents-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/sidebars.test.ts-snapshots/right-dark-tabbar-with-text-jupyterlab-linux.png b/galata/test/jupyterlab/sidebars.test.ts-snapshots/right-dark-tabbar-with-text-jupyterlab-linux.png
new file mode 100644
index 000000000000..9989151e0f1b
Binary files /dev/null and b/galata/test/jupyterlab/sidebars.test.ts-snapshots/right-dark-tabbar-with-text-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/styles.test.ts b/galata/test/jupyterlab/styles.test.ts
index 4917d6ebb8ba..406f23f66813 100644
--- a/galata/test/jupyterlab/styles.test.ts
+++ b/galata/test/jupyterlab/styles.test.ts
@@ -3,7 +3,7 @@
 
 import { expect, test } from '@jupyterlab/galata';
 
-// posssibly incomplete (as new tags get added) list of HTML tags as defined in HTML standards (including deprecated elements)
+// possibly incomplete (as new tags get added) list of HTML tags as defined in HTML standards (including deprecated elements)
 const standardHTMLTags = new Set([
   'a',
   'abbr',
@@ -146,7 +146,7 @@ test.describe('CSS Selectors', () => {
           await page.theme.setLightTheme();
           break;
         default:
-          throw new Error(`Unknown theme ${theme}`);
+          expect(false);
       }
 
       // Create a new notebook and add a MathJax 2 element to ensure that
@@ -170,13 +170,7 @@ test.describe('CSS Selectors', () => {
 
       const allTags = new Set([...standardHTMLTags, ...detectedTags]);
 
-      const selectors: string[] = await page.evaluate(() =>
-        [...document.querySelectorAll('style')]
-          .map(style => [...style.sheet.cssRules])
-          .flat()
-          .filter((rule: CSSRule) => rule instanceof CSSStyleRule)
-          .map((rule: CSSStyleRule) => rule.selectorText)
-      );
+      const selectors: string[] = await page.style.collectAllSelectors();
       const matcher = new RegExp(
         ':hover.*\\s+(' + [...allTags].join('|') + ')($|\\s)'
       );
@@ -186,14 +180,6 @@ test.describe('CSS Selectors', () => {
       for (const selectorGroup of selectors) {
         for (const selector of selectorGroup.split(',')) {
           if (selector.match(matcher)) {
-            if (
-              selector.includes('.bp3-control') ||
-              selector.includes('.bp3-interactive')
-            ) {
-              // Ignore problematic Blueprint styles on 3.4.x - those were removed in 4.0,
-              // and are not as problematic since they only match against `input` and `td`.
-              continue;
-            }
             matchedSelectors.push(selector);
           }
         }
diff --git a/galata/test/jupyterlab/terminal.test.ts b/galata/test/jupyterlab/terminal.test.ts
index df261c308c98..e026415b6dad 100644
--- a/galata/test/jupyterlab/terminal.test.ts
+++ b/galata/test/jupyterlab/terminal.test.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { expect, test } from '@jupyterlab/galata';
 
 const TERMINAL_SELECTOR = '.jp-Terminal';
@@ -112,16 +117,13 @@ test('Terminal web link', async ({ page, tmpPath }) => {
   await page.keyboard.press('Enter');
   await page.waitForTimeout(1000);
   await Promise.all([
-    terminal.locator('.jp-Terminal-body.xterm-cursor-pointer').waitFor(),
-    terminal
-      .locator('canvas')
-      .last()
-      .hover({
-        position: {
-          x: 60,
-          y: 23
-        }
-      })
+    terminal.locator('.jp-Terminal-body .xterm-cursor-pointer').waitFor(),
+    terminal.locator('canvas.xterm-cursor-layer').hover({
+      position: {
+        x: 60,
+        y: 23
+      }
+    })
   ]);
   expect(await terminal.screenshot()).toMatchSnapshot('web-links-term.png');
 });
diff --git a/galata/test/jupyterlab/terminal.test.ts-snapshots/dark-term-inherit-jupyterlab-linux.png b/galata/test/jupyterlab/terminal.test.ts-snapshots/dark-term-inherit-jupyterlab-linux.png
index ee868f89f694..5f75dd994b1d 100644
Binary files a/galata/test/jupyterlab/terminal.test.ts-snapshots/dark-term-inherit-jupyterlab-linux.png and b/galata/test/jupyterlab/terminal.test.ts-snapshots/dark-term-inherit-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/terminal.test.ts-snapshots/launcher-term-jupyterlab-linux.png b/galata/test/jupyterlab/terminal.test.ts-snapshots/launcher-term-jupyterlab-linux.png
index 0ed5aff85885..d9033cf0bcf2 100644
Binary files a/galata/test/jupyterlab/terminal.test.ts-snapshots/launcher-term-jupyterlab-linux.png and b/galata/test/jupyterlab/terminal.test.ts-snapshots/launcher-term-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/texteditor.test.ts b/galata/test/jupyterlab/texteditor.test.ts
index 802bedf25fa6..501a083bf874 100644
--- a/galata/test/jupyterlab/texteditor.test.ts
+++ b/galata/test/jupyterlab/texteditor.test.ts
@@ -20,30 +20,20 @@ test.describe('Text Editor Tests', () => {
     const imageName = 'text-editor-rulers.png';
     await page.menu.clickMenuItem('File>New>Text File');
 
-    await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+    await page.getByRole('main').getByText(DEFAULT_NAME).waitFor();
 
-    await page.menu.clickMenuItem('Settings>Advanced Settings Editor');
+    await page.menu.clickMenuItem('Settings>Settings Editor');
 
-    await page.waitForSelector('text=Text Editor');
-    await page.click('text=Text Editor');
+    await page
+      .getByRole('tab', { name: 'Text Editor' })
+      .getByText('Text Editor')
+      .click();
 
     // Add two rulers
-    await page.click('text="Add"');
-    await page.click(
-      '[id="jp-SettingsEditor-@jupyterlab/fileeditor-extension:plugin_editorConfig_rulers_0"]'
-    );
-    await page.type(
-      '[id="jp-SettingsEditor-@jupyterlab/fileeditor-extension:plugin_editorConfig_rulers_0"]',
-      '50'
-    );
-    await page.click('text="Add"');
-    await page.click(
-      '[id="jp-SettingsEditor-@jupyterlab/fileeditor-extension:plugin_editorConfig_rulers_1"]'
-    );
-    await page.type(
-      '[id="jp-SettingsEditor-@jupyterlab/fileeditor-extension:plugin_editorConfig_rulers_1"]',
-      '75'
-    );
+    await page.locator('#root').getByRole('button', { name: 'Add' }).click();
+    await page.locator('input[id="root_rulers_0"]').type('50');
+    await page.locator('#root').getByRole('button', { name: 'Add' }).click();
+    await page.locator('input[id="root_rulers_1"]').type('75');
 
     await page.activity.activateTab(DEFAULT_NAME);
 
@@ -52,25 +42,57 @@ test.describe('Text Editor Tests', () => {
     expect(await tabHandle.screenshot()).toMatchSnapshot(imageName);
   });
 
+  test('Selection in highlighted line', async ({ page }) => {
+    const imageName = 'text-editor-active-line-with-selection.png';
+    await page.evaluate(async () => {
+      await window.jupyterapp.commands.execute('settingeditor:open', {
+        query: 'Text Editor'
+      });
+    });
+
+    let locator = page.getByLabel('Highlight the active line');
+    await locator.click();
+
+    await page.menu.clickMenuItem('File>New>Text File');
+
+    await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
+
+    await page.type(
+      '.cm-content',
+      'Not active\nActive line with >>selected text<<\nNot active'
+    );
+
+    await page.keyboard.press('ArrowUp');
+    await page.keyboard.press('End');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    for (let i = 0; i < 13; i++) {
+      await page.keyboard.press('Shift+ArrowLeft');
+    }
+    expect(
+      await page.locator('.jp-FileEditorCodeWrapper .cm-content').screenshot()
+    ).toMatchSnapshot(imageName, { threshold: 0.01 });
+  });
+
   test('Go to line with argument', async ({ page }) => {
     const imageName = 'go-to-line-editor.png';
     await page.menu.clickMenuItem('File>New>Text File');
 
     await page.waitForSelector(`[role="main"] >> text=${DEFAULT_NAME}`);
 
-    await page.fill(
-      '[role="main"] >> textarea',
+    await page.type(
+      '.cm-content',
       `Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam urna
-libero, dictum a egestas non, placerat vel neque. In imperdiet iaculis fermentum. 
-Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia 
-Curae; Cras augue tortor, tristique vitae varius nec, dictum eu lectus. Pellentesque 
-id eleifend eros. In non odio in lorem iaculis sollicitudin. In faucibus ante ut 
-arcu fringilla interdum. Maecenas elit nulla, imperdiet nec blandit et, consequat 
+libero, dictum a egestas non, placerat vel neque. In imperdiet iaculis fermentum.
+Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia
+Curae; Cras augue tortor, tristique vitae varius nec, dictum eu lectus. Pellentesque
+id eleifend eros. In non odio in lorem iaculis sollicitudin. In faucibus ante ut
+arcu fringilla interdum. Maecenas elit nulla, imperdiet nec blandit et, consequat
 ut elit.`
     );
 
     await page.evaluate(async () => {
-      await window.jupyterapp.commands.execute('codemirror:go-to-line', {
+      await window.jupyterapp.commands.execute('fileeditor:go-to-line', {
         line: 2,
         column: 8
       });
diff --git a/galata/test/jupyterlab/texteditor.test.ts-snapshots/go-to-line-editor-jupyterlab-linux.png b/galata/test/jupyterlab/texteditor.test.ts-snapshots/go-to-line-editor-jupyterlab-linux.png
index ac9d84b97241..cf1527f4e5a8 100644
Binary files a/galata/test/jupyterlab/texteditor.test.ts-snapshots/go-to-line-editor-jupyterlab-linux.png and b/galata/test/jupyterlab/texteditor.test.ts-snapshots/go-to-line-editor-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-active-line-with-selection-jupyterlab-linux.png b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-active-line-with-selection-jupyterlab-linux.png
new file mode 100644
index 000000000000..5911f2a8ff17
Binary files /dev/null and b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-active-line-with-selection-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-jupyterlab-linux.png b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-jupyterlab-linux.png
index 6d4eee2cb441..a4b90daedff1 100644
Binary files a/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-jupyterlab-linux.png and b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-rulers-jupyterlab-linux.png b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-rulers-jupyterlab-linux.png
index a1819898f635..a4b90daedff1 100644
Binary files a/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-rulers-jupyterlab-linux.png and b/galata/test/jupyterlab/texteditor.test.ts-snapshots/text-editor-rulers-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc-running.test.ts b/galata/test/jupyterlab/toc-running.test.ts
index 60d9d1bbc717..5ac557858eba 100644
--- a/galata/test/jupyterlab/toc-running.test.ts
+++ b/galata/test/jupyterlab/toc-running.test.ts
@@ -6,17 +6,19 @@ import { expect, test } from '@jupyterlab/galata';
 test.describe('ToC Running indicator', () => {
   test.beforeEach(async ({ page }) => {
     await page.notebook.createNew();
-    await page.notebook.addCell('markdown', '# Title 1');
+    await page.notebook.setCell(0, 'markdown', '# Title 1');
     await page.notebook.addCell('code', 'from time import sleep');
     await page.notebook.addCell('code', 'sleep(2)');
     await page.notebook.addCell('markdown', '## Title 1.1');
+    await page.notebook.addCell('markdown', 'No heading');
     await page.notebook.addCell('code', 'sleep(2)');
     await page.notebook.addCell('markdown', '## Title 1.2');
     await page.notebook.addCell('code', 'sleep(1)');
 
-    await page.notebook.run();
-
     await page.sidebar.openTab('table-of-contents');
+    await page.waitForSelector(
+      '.jp-TableOfContents-content[data-document-type="notebook"] >> text=Title 1.2'
+    );
   });
 
   test('should display running indicators', async ({ page }) => {
@@ -24,7 +26,6 @@ test.describe('ToC Running indicator', () => {
       await page.sidebar.getTabPosition('table-of-contents')
     );
     const executed = page.notebook.run();
-
     await tocPanel.waitForSelector('[data-running="1"]');
     expect(await tocPanel.screenshot()).toMatchSnapshot(
       'toc-running-indicators.png'
@@ -39,9 +40,11 @@ test.describe('ToC Running indicator', () => {
     const tocPanel = await page.sidebar.getContentPanel(
       await page.sidebar.getTabPosition('table-of-contents')
     );
+    await page.notebook.run();
+
     // Collapse ToC
     await page.click(
-      '[aria-label="Table of Contents section"] li >> :nth-match(div, 3)'
+      '[aria-label="Table of Contents section"] >> button:left-of(:text("Title 1"))'
     );
 
     const executed = page.notebook.runCell(5);
@@ -53,22 +56,4 @@ test.describe('ToC Running indicator', () => {
 
     await executed;
   });
-
-  test('should display running indicator in prompt', async ({ page }) => {
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
-    );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    await toolbarButtons[0].click();
-
-    const tocEntry = page
-      .locator('.jp-TableOfContents-content .jp-tocItem')
-      .nth(2)
-      .locator('.toc-code-cell-prompt');
-    const executed = page.notebook.runCell(3);
-
-    await expect(tocEntry).toHaveText('[*]: ');
-
-    await executed;
-  });
 });
diff --git a/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicator-top-level-jupyterlab-linux.png b/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicator-top-level-jupyterlab-linux.png
index e96b35d31409..b174608fc6e3 100644
Binary files a/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicator-top-level-jupyterlab-linux.png and b/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicator-top-level-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicators-jupyterlab-linux.png b/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicators-jupyterlab-linux.png
index 861f6b5b8522..c9111aa4d649 100644
Binary files a/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicators-jupyterlab-linux.png and b/galata/test/jupyterlab/toc-running.test.ts-snapshots/toc-running-indicators-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc-scrolling.test.ts b/galata/test/jupyterlab/toc-scrolling.test.ts
new file mode 100644
index 000000000000..8e32ef167818
--- /dev/null
+++ b/galata/test/jupyterlab/toc-scrolling.test.ts
@@ -0,0 +1,54 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { expect, galata, test } from '@jupyterlab/galata';
+import * as path from 'path';
+
+const fileName = 'toc_scrolling_notebook.ipynb';
+
+test.use({ tmpPath: 'test-toc' });
+
+test.describe('Table of Contents scrolling to heading', () => {
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
+    await contents.uploadFile(
+      path.resolve(__dirname, `./notebooks/${fileName}`),
+      `${tmpPath}/${fileName}`
+    );
+  });
+
+  test.beforeEach(async ({ page, tmpPath }) => {
+    await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+    await page.notebook.activate(fileName);
+
+    await page.sidebar.openTab('table-of-contents');
+  });
+
+  test.afterEach(async ({ page }) => {
+    await page.notebook.close(true);
+  });
+
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
+    await contents.deleteDirectory(tmpPath);
+  });
+
+  test('Notebook scrolls to heading', async ({ page }) => {
+    await page.notebook.selectCells(0);
+
+    await page.sidebar.getContentPanel(
+      await page.sidebar.getTabPosition('table-of-contents')
+    );
+
+    await page
+      .locator('.jp-TableOfContents-tree >> text="the last one"')
+      .click({
+        button: 'left'
+      });
+
+    const nbPanel = await page.notebook.getNotebookInPanel();
+    expect(await nbPanel.screenshot()).toMatchSnapshot(
+      'scrolled-to-bottom-heading.png'
+    );
+  });
+});
diff --git a/galata/test/jupyterlab/toc-scrolling.test.ts-snapshots/scrolled-to-bottom-heading-jupyterlab-linux.png b/galata/test/jupyterlab/toc-scrolling.test.ts-snapshots/scrolled-to-bottom-heading-jupyterlab-linux.png
new file mode 100644
index 000000000000..e0da0d5e014b
Binary files /dev/null and b/galata/test/jupyterlab/toc-scrolling.test.ts-snapshots/scrolled-to-bottom-heading-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc.test.ts b/galata/test/jupyterlab/toc.test.ts
index 29cf667afa5a..abc994cb61b6 100644
--- a/galata/test/jupyterlab/toc.test.ts
+++ b/galata/test/jupyterlab/toc.test.ts
@@ -8,88 +8,35 @@ const fileName = 'toc_notebook.ipynb';
 
 test.use({ tmpPath: 'test-toc' });
 
-test.describe.serial('Table of Contents', () => {
-  test.beforeAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+test.describe('Table of Contents', () => {
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.uploadFile(
       path.resolve(__dirname, `./notebooks/${fileName}`),
       `${tmpPath}/${fileName}`
     );
-    await contents.uploadFile(
-      path.resolve(__dirname, './notebooks/WidgetArch.png'),
-      `${tmpPath}/WidgetArch.png`
-    );
   });
 
   test.beforeEach(async ({ page, tmpPath }) => {
     await page.notebook.openByPath(`${tmpPath}/${fileName}`);
     await page.notebook.activate(fileName);
+
+    await page.sidebar.openTab('table-of-contents');
+
+    await page.click('.jp-toc-numberingButton');
   });
 
   test.afterEach(async ({ page }) => {
     await page.notebook.close(true);
   });
 
-  test.afterAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.deleteDirectory(tmpPath);
   });
 
-  test('Add tags', async ({ page }) => {
-    await page.sidebar.openTab('jp-property-inspector');
-    const imageName = 'add-tags.png';
-    const tagInputSelector = 'div.tag-holder input.add-tag';
-    let piPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('jp-property-inspector')
-    );
-    let addTagInput = await piPanel.$(tagInputSelector);
-    await addTagInput.click();
-    await page.keyboard.insertText('tag1');
-    await page.keyboard.press('Enter');
-    addTagInput = await piPanel.$(tagInputSelector);
-    await addTagInput.click();
-    await page.keyboard.insertText('tag2');
-    await page.keyboard.press('Enter');
-    await page.notebook.save();
-
-    const cellTagsPanel = await piPanel.$('.jp-NotebookTools-tool.jp-TagTool');
-
-    expect(await cellTagsPanel.screenshot()).toMatchSnapshot(imageName);
-  });
-
-  test('Assign tags to cells', async ({ page }) => {
-    await page.notebook.selectCells(6);
-
-    await page.sidebar.openTab('jp-property-inspector');
-    let piPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('jp-property-inspector')
-    );
-    const tags = await piPanel.$$('.lm-Widget.tag');
-    expect(tags.length).toBe(3); // including Add Tag
-    await tags[0].click();
-
-    await page.notebook.activate(fileName);
-    await page.notebook.selectCells(9);
-
-    await page.sidebar.openTab('jp-property-inspector');
-    await tags[1].click();
-
-    await page.notebook.activate(fileName);
-    await page.notebook.selectCells(11);
-
-    await page.sidebar.openTab('jp-property-inspector');
-    await tags[0].click();
-    await tags[1].click();
-
-    await page.notebook.activate(fileName);
-    await page.notebook.save();
-  });
-
   test('Open Table of Contents panel', async ({ page }) => {
     const imageName = 'toc-panel.png';
-    await page.notebook.selectCells(0);
-
-    await page.sidebar.openTab('table-of-contents');
     const tocPanel = await page.sidebar.getContentPanel(
       await page.sidebar.getTabPosition('table-of-contents')
     );
@@ -97,137 +44,53 @@ test.describe.serial('Table of Contents', () => {
     expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
   });
 
-  test('Toggle code', async ({ page }) => {
-    await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
-
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
-    );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    expect(toolbarButtons.length).toBe(4);
-
-    const imageName = 'toggle-code.png';
-    await toolbarButtons[0].click();
-
-    expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-    await toolbarButtons[0].click();
-  });
-
-  test('Toggle markdown', async ({ page }) => {
-    await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
-
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
-    );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    expect(toolbarButtons.length).toBe(4);
-
-    const imageName = 'toggle-markdown.png';
-    await toolbarButtons[1].click();
-
-    expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-    await toolbarButtons[1].click();
-  });
-
   test('Toggle list', async ({ page }) => {
     await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
 
     const tocPanel = await page.sidebar.getContentPanel(
       await page.sidebar.getTabPosition('table-of-contents')
     );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    expect(toolbarButtons.length).toBe(4);
-
-    const imageName = 'toggle-numbered-list.png';
-    await toolbarButtons[2].click();
-
-    expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-    await toolbarButtons[2].click();
-  });
-
-  test('Toggle show tags', async ({ page }) => {
-    await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
-
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
+    const numberingButton = await tocPanel.$$(
+      'button[data-command="toc:display-numbering"]'
     );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    expect(toolbarButtons.length).toBe(4);
-
-    // toggle code and markdown
-    await toolbarButtons[0].click();
-    await toolbarButtons[1].click();
+    expect(numberingButton.length).toBe(1);
 
-    const imageName = 'show-tags.png';
-    await toolbarButtons[3].click();
-
-    expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-  });
-
-  test('Toggle tag 1', async ({ page }) => {
-    await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
-
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
-    );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    // toggle code and markdown
-    await toolbarButtons[0].click();
-    await toolbarButtons[1].click();
-    await toolbarButtons[3].click();
-
-    const tags = await tocPanel.$$('.toc-tag');
-    expect(tags.length).toBe(2);
-
-    const imageName = 'toggle-tag-1.png';
-    await tags[0].click();
+    const imageName = 'toggle-numbered-list.png';
+    await numberingButton[0].click();
 
     expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-    await tags[0].click();
   });
 
-  test('Toggle tag 2', async ({ page }) => {
+  test('Notebook context menu', async ({ page }) => {
     await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
 
     const tocPanel = await page.sidebar.getContentPanel(
       await page.sidebar.getTabPosition('table-of-contents')
     );
-    const toolbarButtons = await tocPanel.$$('.toc-toolbar .toc-toolbar-icon');
-    // toggle code and markdown
-    await toolbarButtons[0].click();
-    await toolbarButtons[1].click();
-    await toolbarButtons[3].click();
-
-    const tags = await tocPanel.$$('.toc-tag');
 
-    const imageName = 'toggle-tag-2.png';
-    await tags[1].click();
+    await Promise.all([
+      page.locator(
+        '.jp-TableOfContents-tree >> .jp-tocItem-active >> text="2. Multiple output types"'
+      ),
+      page
+        .locator('.jp-TableOfContents-tree >> text="2. Multiple output types"')
+        .click({
+          button: 'right'
+        })
+    ]);
 
-    expect(await tocPanel.screenshot()).toMatchSnapshot(imageName);
-    await tags[1].click();
-  });
-
-  test('Open context menu', async ({ page }) => {
-    await page.notebook.selectCells(0);
-    await page.sidebar.openTab('table-of-contents');
+    const menu = await page.menu.getOpenMenu();
 
-    const tocPanel = await page.sidebar.getContentPanel(
-      await page.sidebar.getTabPosition('table-of-contents')
-    );
+    await (
+      await menu.$('text=Select and Run Cell(s) for this Heading')
+    ).click();
 
-    await (await tocPanel.$('li > .toc-level-size-1')).click({
-      button: 'right'
-    });
+    await page
+      .locator('.jp-TableOfContents-tree >> text="2. HTML title"')
+      .waitFor();
 
-    const menu = await page.menu.getOpenMenu();
-    expect(await menu.screenshot()).toMatchSnapshot(
-      'notebook-context-menu.png'
+    expect(await tocPanel.screenshot()).toMatchSnapshot(
+      'notebook-output-headings.png'
     );
   });
 });
diff --git a/galata/test/jupyterlab/toc.test.ts-snapshots/notebook-output-headings-jupyterlab-linux.png b/galata/test/jupyterlab/toc.test.ts-snapshots/notebook-output-headings-jupyterlab-linux.png
new file mode 100644
index 000000000000..621ec317a9b9
Binary files /dev/null and b/galata/test/jupyterlab/toc.test.ts-snapshots/notebook-output-headings-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc.test.ts-snapshots/toc-panel-jupyterlab-linux.png b/galata/test/jupyterlab/toc.test.ts-snapshots/toc-panel-jupyterlab-linux.png
index 1ddb08314337..611d95d0282a 100644
Binary files a/galata/test/jupyterlab/toc.test.ts-snapshots/toc-panel-jupyterlab-linux.png and b/galata/test/jupyterlab/toc.test.ts-snapshots/toc-panel-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toc.test.ts-snapshots/toggle-numbered-list-jupyterlab-linux.png b/galata/test/jupyterlab/toc.test.ts-snapshots/toggle-numbered-list-jupyterlab-linux.png
index dd805f92e6d4..7df306ca81e1 100644
Binary files a/galata/test/jupyterlab/toc.test.ts-snapshots/toggle-numbered-list-jupyterlab-linux.png and b/galata/test/jupyterlab/toc.test.ts-snapshots/toggle-numbered-list-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/toolbars.test.ts b/galata/test/jupyterlab/toolbars.test.ts
new file mode 100644
index 000000000000..3fe9be02cdd7
--- /dev/null
+++ b/galata/test/jupyterlab/toolbars.test.ts
@@ -0,0 +1,39 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { test } from '@jupyterlab/galata';
+import type { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { expect } from '@playwright/test';
+
+const toolbars: string[][] = [
+  ['@jupyterlab/csvviewer-extension:csv', 'toolbar'],
+  ['@jupyterlab/csvviewer-extension:tsv', 'toolbar'],
+  ['@jupyterlab/fileeditor-extension:plugin', 'toolbar'],
+  ['@jupyterlab/htmlviewer-extension:plugin', 'toolbar'],
+  ['@jupyterlab/notebook-extension:panel', 'toolbar']
+];
+
+toolbars.forEach(([plugin, parameter]) => {
+  test(`Toolbar commands for ${plugin} must exists`, async ({ page }) => {
+    const [toolbarItems, commands] = await page.evaluate(
+      async ([plugin, parameter]) => {
+        const settings = await window.galata.getPlugin(
+          '@jupyterlab/apputils-extension:settings'
+        );
+        const toolbar = await settings.get(plugin, parameter);
+
+        const commandIds = window.jupyterapp.commands.listCommands();
+        return Promise.resolve([
+          toolbar.composite as ISettingRegistry.IToolbarItem[],
+          commandIds
+        ]);
+      },
+      [plugin, parameter]
+    );
+
+    const missingCommands = toolbarItems.filter(
+      item => item.command !== undefined && !commands.includes(item.command)
+    );
+    expect(missingCommands).toEqual([]);
+  });
+});
diff --git a/galata/test/jupyterlab/windowed-notebook.test.ts b/galata/test/jupyterlab/windowed-notebook.test.ts
new file mode 100644
index 000000000000..ed21c0fe135a
--- /dev/null
+++ b/galata/test/jupyterlab/windowed-notebook.test.ts
@@ -0,0 +1,297 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+import { expect, galata, test } from '@jupyterlab/galata';
+import * as path from 'path';
+
+const fileName = 'windowed_notebook.ipynb';
+const injectionFile = 'css_js_injection.ipynb';
+
+test.use({
+  mockSettings: {
+    ...galata.DEFAULT_SETTINGS,
+    '@jupyterlab/notebook-extension:tracker': {
+      ...galata.DEFAULT_SETTINGS['@jupyterlab/notebook-extension:tracker'],
+      windowingMode: 'full'
+    }
+  }
+});
+
+test.beforeEach(async ({ page, tmpPath }) => {
+  await page.contents.uploadFile(
+    path.resolve(__dirname, `../galata/notebooks/${fileName}`),
+    `${tmpPath}/${fileName}`
+  );
+  await page.contents.uploadFile(
+    path.resolve(__dirname, `./notebooks/${injectionFile}`),
+    `${tmpPath}/${injectionFile}`
+  );
+});
+
+test('should not update height when hiding', async ({ page, tmpPath }) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  // Wait to ensure the rendering logic is stable.
+  await page.waitForTimeout(200);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const initialHeight = parseInt(
+    (await h?.$$eval(
+      '.jp-WindowedPanel-inner',
+      nodes => nodes[0].style.height
+    )) ?? '0',
+    10
+  );
+
+  expect(initialHeight).toBeGreaterThan(0);
+
+  await page.menu.clickMenuItem('File>New Launcher');
+
+  const innerHeight =
+    (await h?.$$eval(
+      '.jp-WindowedPanel-inner',
+      nodes => nodes[0].style.height
+    )) ?? '-1';
+
+  expect(parseInt(innerHeight, 10)).toEqual(initialHeight);
+});
+
+test('should hide first code cell when scrolling down', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const firstCellSelector = '.jp-Cell[data-windowed-list-index="0"]';
+  const firstCell = await h!.waitForSelector(firstCellSelector);
+
+  const bbox = await h!.boundingBox();
+  await page.mouse.move(bbox!.x, bbox!.y);
+  await Promise.all([
+    firstCell.waitForElementState('hidden'),
+    page.mouse.wheel(0, 600)
+  ]);
+
+  // Check the content contains only the output
+  expect(await firstCell.textContent()).toEqual('[16]:local link\n');
+});
+
+test('should reattached a code code cell when scrolling back into the viewport', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const firstCellSelector = '.jp-Cell[data-windowed-list-index="0"]';
+  const firstCell = await h!.waitForSelector(firstCellSelector);
+
+  const bbox = await h!.boundingBox();
+  await page.mouse.move(bbox!.x, bbox!.y);
+  await Promise.all([
+    firstCell.waitForElementState('hidden'),
+    h!.waitForSelector('.jp-MarkdownCell[data-windowed-list-index="6"]'),
+    page.mouse.wheel(0, 1200)
+  ]);
+
+  await Promise.all([
+    firstCell.waitForElementState('visible'),
+    page.mouse.wheel(0, -1200)
+  ]);
+
+  // Check that the input area is back
+  expect(await firstCell.waitForSelector('.jp-InputArea')).toBeDefined();
+});
+
+test('should detach a markdown code cell when scrolling out of the viewport', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const mdCellSelector = '.jp-MarkdownCell[data-windowed-list-index="2"]';
+  const mdCell = await h!.waitForSelector(mdCellSelector);
+
+  const bbox = await h!.boundingBox();
+  await page.mouse.move(bbox!.x, bbox!.y);
+  await Promise.all([
+    mdCell.waitForElementState('hidden'),
+    page.mouse.wheel(0, 1200)
+  ]);
+
+  let found = true;
+  try {
+    await h!.waitForSelector(mdCellSelector, { timeout: 150 });
+  } catch (r) {
+    found = false;
+  }
+  expect(found).toEqual(false);
+});
+
+test('should reattach a markdown code cell when scrolling back into the viewport', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const mdCellSelector = '.jp-MarkdownCell[data-windowed-list-index="2"]';
+  const mdCell = await h!.waitForSelector(mdCellSelector);
+
+  const bbox = await h!.boundingBox();
+  await page.mouse.move(bbox!.x, bbox!.y);
+  await Promise.all([
+    mdCell.waitForElementState('hidden'),
+    h!.waitForSelector('.jp-MarkdownCell[data-windowed-list-index="6"]'),
+    page.mouse.wheel(0, 1200)
+  ]);
+
+  await page.waitForTimeout(400);
+
+  await page.mouse.wheel(0, -1200);
+
+  expect(await h!.waitForSelector(mdCellSelector)).toBeDefined();
+});
+
+test('should remove all cells including hidden outputs artifacts', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+
+  const bbox = await h!.boundingBox();
+  await page.mouse.move(bbox!.x, bbox!.y);
+  await Promise.all([
+    h!.waitForSelector('.jp-MarkdownCell[data-windowed-list-index="6"]'),
+    page.mouse.wheel(0, 1200)
+  ]);
+
+  // Select all cells
+  await page.keyboard.press('Control+a');
+  // Delete all cells
+  await page.keyboard.press('d');
+  await page.keyboard.press('d');
+
+  // Check that the notebook only contains one cell
+  expect(await (await h!.$('.jp-WindowedPanel-inner'))!.textContent()).toEqual(
+    '[ ]:'
+  );
+
+  // Check there are no hidden cells
+  let found = true;
+  try {
+    await h!.waitForSelector('.jp-Cell', { state: 'hidden', timeout: 150 });
+  } catch (r) {
+    found = false;
+  }
+  expect(found).toEqual(false);
+});
+
+test('should scroll past end when running and inserting a cell at the viewport bottom', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${fileName}`);
+
+  const h = await page.notebook.getNotebookInPanel();
+  const mdCellSelector = '.jp-MarkdownCell[data-windowed-list-index="2"]';
+  const mdCell = await h!.waitForSelector(mdCellSelector);
+
+  await page
+    .locator('.jp-Notebook-ExecutionIndicator[data-status="idle"]')
+    .waitFor();
+
+  await mdCell.click();
+
+  await expect
+    .soft(
+      page
+        .getByRole('main')
+        .locator('.jp-RawCell[data-windowed-list-index="4"]')
+    )
+    .not.toBeInViewport();
+
+  await page.keyboard.press('Shift+Enter');
+
+  await expect(
+    page.getByRole('main').locator('.jp-RawCell[data-windowed-list-index="4"]')
+  ).toBeInViewport();
+});
+
+test('should rendered injected styles of out-of-viewport cells', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${injectionFile}`);
+  await page.notebook.trust();
+
+  // Check the cell is out of the viewport
+  await expect
+    .soft(page.locator('.jp-Cell[data-windowed-list-index="4"]'))
+    .not.toBeVisible();
+
+  await page.waitForFunction(() => {
+    const cell = document.querySelector('.jp-Notebook-cell');
+    if (cell) {
+      return (
+        window.getComputedStyle(cell, '::after').content ==
+        '"CSS ::after element"'
+      );
+    } else {
+      return false;
+    }
+  });
+
+  const afterCellCount = await page.evaluate(() => {
+    let count = 0;
+    for (const cell of document.querySelectorAll('.jp-Notebook-cell')) {
+      count +=
+        window.getComputedStyle(cell, '::after').content ==
+        '"CSS ::after element"'
+          ? 1
+          : 0;
+    }
+    return count;
+  });
+
+  expect(afterCellCount).toBeGreaterThan(1);
+});
+
+test('should rendered injected HTML scripts of out-of-viewport cells', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${injectionFile}`);
+  await page.notebook.trust();
+
+  // Check the cell is out of the viewport
+  await expect
+    .soft(page.locator('.jp-Cell[data-windowed-list-index="4"]'))
+    .not.toBeVisible();
+
+  await page.getByText('JavaScript injected from HTML').first().waitFor();
+  expect(
+    await page.getByText('JavaScript injected from HTML').count()
+  ).toBeGreaterThan(1);
+});
+
+test('should rendered injected JavaScript snippets of out-of-viewport cells', async ({
+  page,
+  tmpPath
+}) => {
+  await page.notebook.openByPath(`${tmpPath}/${injectionFile}`);
+  await page.notebook.trust();
+
+  // Check the cell is out of the viewport
+  await expect
+    .soft(page.locator('.jp-Cell[data-windowed-list-index="4"]'))
+    .not.toBeVisible();
+
+  await page.getByText('JavaScript injected header').first().waitFor();
+  expect(
+    await page.getByText('JavaScript injected header').count()
+  ).toBeGreaterThan(1);
+});
diff --git a/galata/test/jupyterlab/workspace.test.ts b/galata/test/jupyterlab/workspace.test.ts
index 9e2bf6b5d98a..9f8a2e9a9b32 100644
--- a/galata/test/jupyterlab/workspace.test.ts
+++ b/galata/test/jupyterlab/workspace.test.ts
@@ -22,8 +22,8 @@ test.use({
 });
 
 test.describe('Workspace', () => {
-  test.beforeAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.uploadFile(
       path.resolve(__dirname, `./notebooks/${nbFile}`),
       `${tmpPath}/${nbFile}`
@@ -34,8 +34,8 @@ test.describe('Workspace', () => {
     );
   });
 
-  test.afterAll(async ({ baseURL, request, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL, undefined, request);
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.deleteDirectory(tmpPath);
   });
 
@@ -231,8 +231,8 @@ test.describe('Workspace', () => {
 });
 
 test.describe('Workspace in doc mode', () => {
-  test.beforeAll(async ({ baseURL, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL);
+  test.beforeAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.uploadFile(
       path.resolve(__dirname, `./notebooks/${nbFile}`),
       `${tmpPath}/${nbFile}`
@@ -243,8 +243,8 @@ test.describe('Workspace in doc mode', () => {
     );
   });
 
-  test.afterAll(async ({ baseURL, tmpPath }) => {
-    const contents = galata.newContentsHelper(baseURL);
+  test.afterAll(async ({ request, tmpPath }) => {
+    const contents = galata.newContentsHelper(request);
     await contents.deleteDirectory(tmpPath);
   });
 
diff --git a/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-reset-jupyterlab-linux.png b/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-reset-jupyterlab-linux.png
index 9e989961fada..ea98d8da985a 100644
Binary files a/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-reset-jupyterlab-linux.png and b/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-reset-jupyterlab-linux.png differ
diff --git a/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-simple-reset-jupyterlab-linux.png b/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-simple-reset-jupyterlab-linux.png
index 9e989961fada..ea98d8da985a 100644
Binary files a/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-simple-reset-jupyterlab-linux.png and b/galata/test/jupyterlab/workspace.test.ts-snapshots/workspace-simple-reset-jupyterlab-linux.png differ
diff --git a/galata/tsconfig.json b/galata/tsconfig.json
index ddeea3b0be89..f3293fc0d08b 100644
--- a/galata/tsconfig.json
+++ b/galata/tsconfig.json
@@ -5,7 +5,8 @@
     "outDir": "lib",
     "rootDir": "src",
     "module": "commonjs",
-    "types": ["node"]
+    "types": ["node"],
+    "lib": ["DOM", "DOM.iterable", "es2019.array"]
   },
   "include": ["src/**/*"],
   "references": [
@@ -13,11 +14,14 @@
       "path": "../packages/application"
     },
     {
-      "path": "../packages/cells"
+      "path": "../packages/apputils"
     },
     {
       "path": "../packages/coreutils"
     },
+    {
+      "path": "../packages/debugger"
+    },
     {
       "path": "../packages/docmanager"
     },
diff --git a/galata/update_snapshots.py b/galata/update_snapshots.py
index 1f204744fec0..12d39bb21005 100644
--- a/galata/update_snapshots.py
+++ b/galata/update_snapshots.py
@@ -11,10 +11,11 @@
 parser.add_argument("report", help="Path to the galata-report directory")
 args = parser.parse_args()
 
-# Calculate hashes of all png files in the test/directory
+
 def sha1(path):
+    """Calculate hashes of all png files in the test/directory"""
     with open(path, "rb") as f:
-        return hashlib.sha1(f.read()).hexdigest()
+        return hashlib.sha1(f.read()).hexdigest()  # noqa: S324
 
 
 filehashes = {sha1(p): p for p in Path(".").glob("**/*-snapshots/*-linux.png")}
diff --git a/jupyterlab.desktop b/jupyterlab.desktop
new file mode 100644
index 000000000000..93fe9409aa55
--- /dev/null
+++ b/jupyterlab.desktop
@@ -0,0 +1,11 @@
+[Desktop Entry]
+Name=JupyterLab
+Comment=Run JupyterLab
+Exec=jupyter-lab %f
+Terminal=true
+Type=Application
+Icon=jupyterlab
+StartupNotify=true
+MimeType=application/x-ipynb+json;
+Categories=Development;Education;
+Keywords=python;
diff --git a/jupyterlab.svg b/jupyterlab.svg
new file mode 100644
index 000000000000..3e25e74c4c4f
--- /dev/null
+++ b/jupyterlab.svg
@@ -0,0 +1,164 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="51"
+   height="51"
+   viewBox="0 0 51 51"
+   version="2.0"
+   id="svg40"
+   sodipodi:docname="jupyter.svg"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:figma="http://www.figma.com/figma/ns">
+  <sodipodi:namedview
+     id="namedview42"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="15.862745"
+     inkscape:cx="19.353523"
+     inkscape:cy="15.381953"
+     inkscape:window-width="1920"
+     inkscape:window-height="979"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg40" />
+  <title
+     id="title2">logo-5.svg</title>
+  <desc
+     id="desc4">Created using Figma 0.90</desc>
+  <g
+     id="Canvas"
+     transform="translate(-1631.819,-2281)"
+     figma:type="canvas">
+    <g
+       id="logo"
+       style="mix-blend-mode:normal"
+       figma:type="group">
+      <g
+         id="g"
+         style="mix-blend-mode:normal"
+         figma:type="group">
+        <g
+           id="path"
+           style="mix-blend-mode:normal"
+           figma:type="group">
+          <g
+             id="path7 fill"
+             style="mix-blend-mode:normal"
+             figma:type="vector">
+            <use
+               xlink:href="#path0_fill"
+               transform="translate(1669.3,2281.31)"
+               fill="#767677"
+               style="mix-blend-mode:normal"
+               id="use6" />
+          </g>
+        </g>
+        <g
+           id="g13"
+           style="mix-blend-mode:normal"
+           figma:type="group">
+          <g
+             id="path8 fill"
+             style="mix-blend-mode:normal"
+             figma:type="vector">
+            <use
+               xlink:href="#path1_fill"
+               transform="translate(1639.74,2311.98)"
+               fill="#f37726"
+               style="mix-blend-mode:normal"
+               id="use10" />
+          </g>
+        </g>
+        <g
+           id="g18"
+           style="mix-blend-mode:normal"
+           figma:type="group">
+          <g
+             id="path9 fill"
+             style="mix-blend-mode:normal"
+             figma:type="vector">
+            <use
+               xlink:href="#path2_fill"
+               transform="translate(1639.73,2285.48)"
+               fill="#f37726"
+               style="mix-blend-mode:normal"
+               id="use15" />
+          </g>
+        </g>
+        <g
+           id="g23"
+           style="mix-blend-mode:normal"
+           figma:type="group">
+          <g
+             id="path10 fill"
+             style="mix-blend-mode:normal"
+             figma:type="vector">
+            <use
+               xlink:href="#path3_fill"
+               transform="translate(1639.8,2323.81)"
+               fill="#989798"
+               style="mix-blend-mode:normal"
+               id="use20" />
+          </g>
+        </g>
+        <g
+           id="g28"
+           style="mix-blend-mode:normal"
+           figma:type="group">
+          <g
+             id="path11 fill"
+             style="mix-blend-mode:normal"
+             figma:type="vector">
+            <use
+               xlink:href="#path4_fill"
+               transform="translate(1638.36,2286.06)"
+               fill="#6f7070"
+               style="mix-blend-mode:normal"
+               id="use25" />
+          </g>
+        </g>
+      </g>
+    </g>
+  </g>
+  <defs
+     id="defs38">
+    <path
+       id="path0_fill"
+       d="M 5.89353,2.844 C 5.91889,3.43165 5.77085,4.01367 5.46815,4.51645 5.16545,5.01922 4.72168,5.42015 4.19299,5.66851 3.6643,5.91688 3.07444,6.00151 2.49805,5.91171 1.92166,5.8219 1.38463,5.5617 0.954898,5.16401 0.52517,4.76633 0.222056,4.24903 0.0839037,3.67757 -0.0542483,3.10611 -0.02123,2.50617 0.178781,1.95364 0.378793,1.4011 0.736809,0.920817 1.20754,0.573538 1.67826,0.226259 2.24055,0.0275919 2.82326,0.00267229 3.60389,-0.0307115 4.36573,0.249789 4.94142,0.782551 5.51711,1.31531 5.85956,2.05676 5.89353,2.844 Z" />
+    <path
+       id="path1_fill"
+       d="M 18.2646,7.13411 C 10.4145,7.13411 3.55872,4.2576 0,0 c 1.32539,3.8204 3.79556,7.13081 7.0686,9.47303 3.2731,2.34217 7.1871,3.60037 11.2004,3.60037 4.0133,0 7.9273,-1.2582 11.2004,-3.60037 C 32.7424,7.13081 35.2126,3.8204 36.538,0 32.9705,4.2576 26.1148,7.13411 18.2646,7.13411 Z" />
+    <path
+       id="path2_fill"
+       d="m 18.2733,5.93931 c 7.8502,0 14.706,2.87652 18.2647,7.13409 C 35.2126,9.25303 32.7424,5.94262 29.4694,3.6004 26.1963,1.25818 22.2823,0 18.269,0 14.2557,0 10.3417,1.25818 7.0686,3.6004 3.79556,5.94262 1.32539,9.25303 0,13.0734 3.56745,8.82463 10.4232,5.93931 18.2733,5.93931 Z" />
+    <path
+       id="path3_fill"
+       d="M 7.42789,3.58338 C 7.46008,4.3243 7.27355,5.05819 6.89193,5.69213 6.51031,6.32607 5.95075,6.83156 5.28411,7.1446 4.61747,7.45763 3.87371,7.56414 3.14702,7.45063 2.42032,7.33712 1.74336,7.0087 1.20184,6.50695 0.660328,6.0052 0.27861,5.35268 0.105017,4.63202 -0.0685757,3.91135 -0.0262361,3.15494 0.226675,2.45856 0.479587,1.76217 0.931697,1.15713 1.52576,0.720033 2.11983,0.282935 2.82914,0.0334395 3.56389,0.00313344 4.54667,-0.0374033 5.50529,0.316706 6.22961,0.987835 6.95393,1.65896 7.38484,2.59235 7.42789,3.58338 Z" />
+    <path
+       id="path4_fill"
+       d="M 2.27471,4.39629 C 1.84363,4.41508 1.41671,4.30445 1.04799,4.07843 0.679268,3.8524 0.385328,3.52114 0.203371,3.12656 0.0214136,2.73198 -0.0403798,2.29183 0.0258116,1.86181 0.0920031,1.4318 0.283204,1.03126 0.575213,0.710883 0.867222,0.39051 1.24691,0.164708 1.66622,0.0620592 2.08553,-0.0405897 2.52561,-0.0154714 2.93076,0.134235 3.33591,0.283941 3.68792,0.551505 3.94222,0.90306 4.19652,1.25462 4.34169,1.67436 4.35935,2.10916 4.38299,2.69107 4.17678,3.25869 3.78597,3.68746 3.39516,4.11624 2.85166,4.37116 2.27471,4.39629 Z" />
+  </defs>
+  <metadata
+     id="metadata271">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:title>logo-5.svg</dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+</svg>
diff --git a/jupyterlab/__init__.py b/jupyterlab/__init__.py
index c97960a17cf6..e126187df18d 100644
--- a/jupyterlab/__init__.py
+++ b/jupyterlab/__init__.py
@@ -4,12 +4,12 @@
 # Distributed under the terms of the Modified BSD License.
 
 from ._version import __version__  # noqa
-from .handlers.announcements import (  # noqa
-    CheckForUpdate,
-    CheckForUpdateABC,
-    NeverCheckForUpdate,
-)
 from .serverextension import load_jupyter_server_extension  # noqa
+from .handlers.announcements import (
+    CheckForUpdate,  # noqa
+    CheckForUpdateABC,  # noqa
+    NeverCheckForUpdate,  # noqa
+)
 
 
 def _jupyter_server_extension_paths():
diff --git a/jupyterlab/__main__.py b/jupyterlab/__main__.py
index b4c8ce70956d..2f15f7c517aa 100644
--- a/jupyterlab/__main__.py
+++ b/jupyterlab/__main__.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import sys
 
 from jupyterlab.labapp import main
diff --git a/jupyterlab/_version.py b/jupyterlab/_version.py
index 863aeb55d772..9816eb76c289 100644
--- a/jupyterlab/_version.py
+++ b/jupyterlab/_version.py
@@ -6,7 +6,7 @@
 VersionInfo = namedtuple("VersionInfo", ["major", "minor", "micro", "releaselevel", "serial"])
 
 # DO NOT EDIT THIS DIRECTLY!  It is managed by bumpversion
-version_info = VersionInfo(3, 6, 6, "final", 0)
+version_info = VersionInfo(4, 0, 8, "final", 0)
 
 _specifier_ = {"alpha": "a", "beta": "b", "candidate": "rc", "final": ""}
 
diff --git a/jupyterlab/browser-test.js b/jupyterlab/browser-test.js
index c2f1658b59f4..f5905a2c4850 100644
--- a/jupyterlab/browser-test.js
+++ b/jupyterlab/browser-test.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const playwright = require('playwright');
 const path = require('path');
 const fs = require('fs');
diff --git a/jupyterlab/browser_check.py b/jupyterlab/browser_check.py
index 2f52d32d5018..4d86deeaa5ea 100644
--- a/jupyterlab/browser_check.py
+++ b/jupyterlab/browser_check.py
@@ -1,4 +1,6 @@
-# -*- coding: utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 """
 This module is meant to run JupyterLab in a headless browser, making sure
 the application launches and starts up without errors.
@@ -19,7 +21,7 @@
 from tornado.ioloop import IOLoop
 from tornado.iostream import StreamClosedError
 from tornado.websocket import WebSocketClosedError
-from traitlets import Bool
+from traitlets import Bool, Unicode
 
 from .labapp import LabApp, get_app_dir
 from .tests.test_app import TestEnv
@@ -41,14 +43,14 @@ def __init__(self):
         super().__init__(level=logging.ERROR)
         self.errored = False
 
-    def filter(self, record):
+    def filter(self, record):  # noqa
         # Handle known StreamClosedError from Tornado
         # These occur when we forcibly close Websockets or
         # browser connections during the test.
         # https://github.com/tornadoweb/tornado/issues/2834
         if (
             hasattr(record, "exc_info")
-            and not record.exc_info is None
+            and record.exc_info is not None
             and isinstance(record.exc_info[1], (StreamClosedError, WebSocketClosedError))
         ):
             return
@@ -142,8 +144,8 @@ async def run_browser(url):
     if not osp.exists(osp.join(target, "node_modules")):
         if not osp.exists(target):
             os.makedirs(osp.join(target))
-        await run_async_process(["jlpm", "init", "-y"], cwd=target)
-        await run_async_process(["jlpm", "add", "playwright@^1.9.2"], cwd=target)
+        await run_async_process(["npm", "init", "-y"], cwd=target)
+        await run_async_process(["npm", "install", "playwright@^1.9.2"], cwd=target)
     await run_async_process(["npx", "playwright", "install"], cwd=target)
     shutil.copy(osp.join(here, "browser-test.js"), osp.join(target, "browser-test.js"))
     await run_async_process(["node", "browser-test.js", url], cwd=target)
@@ -154,11 +156,11 @@ def run_browser_sync(url):
     target = osp.join(get_app_dir(), "browser_test")
     if not osp.exists(osp.join(target, "node_modules")):
         os.makedirs(target)
-        subprocess.call(["jlpm", "init", "-y"], cwd=target)
-        subprocess.call(["jlpm", "add", "playwright@^1.9.2"], cwd=target)
-    subprocess.call(["npx", "playwright", "install"], cwd=target)
+        subprocess.call(["npm", "init", "-y"], cwd=target)  # noqa S603 S607
+        subprocess.call(["npm", "install", "playwright@^1.9.2"], cwd=target)  # noqa S603 S607
+    subprocess.call(["npx", "playwright", "install"], cwd=target)  # noqa S603 S607
     shutil.copy(osp.join(here, "browser-test.js"), osp.join(target, "browser-test.js"))
-    return subprocess.check_call(["node", "browser-test.js", url], cwd=target)
+    return subprocess.check_call(["node", "browser-test.js", url], cwd=target)  # noqa S603 S607
 
 
 class BrowserApp(LabApp):
@@ -170,14 +172,14 @@ class BrowserApp(LabApp):
     open_browser = False
 
     serverapp_config = {"base_url": "/foo/"}
-    default_url = "/lab?reset"
+    default_url = Unicode("/lab?reset", config=True, help="The default URL to redirect to from `/`")
     ip = "127.0.0.1"
     flags = test_flags
     aliases = test_aliases
     test_browser = Bool(True)
 
     def initialize_settings(self):
-        self.settings.setdefault("page_config_data", dict())
+        self.settings.setdefault("page_config_data", {})
         self.settings["page_config_data"]["browserTest"] = True
         self.settings["page_config_data"]["buildAvailable"] = False
         self.settings["page_config_data"]["exposeAppInBrowser"] = True
@@ -195,18 +197,6 @@ def _jupyter_server_extension_points():
     return [{"module": __name__, "app": BrowserApp}]
 
 
-# TODO: remove handling of --notebook arg and the following two
-# functions in JupyterLab 4.0
-def load_jupyter_server_extension(serverapp):
-    serverapp.log.info("Loading BrowserApp as a classic notebook (v6) extension.")
-    extension = BrowserApp()
-    extension.serverapp = serverapp
-    extension.load_config_file()
-    extension.update_config(serverapp.config)
-    extension.parse_command_line(serverapp.extra_args)
-    extension.initialize()
-
-
 def _jupyter_server_extension_paths():
     return [{"module": "jupyterlab.browser_check"}]
 
@@ -218,13 +208,4 @@ def _jupyter_server_extension_paths():
             BrowserApp.test_browser = False
             sys.argv.remove(option)
 
-    if "--notebook" in sys.argv:
-        from notebook.notebookapp import NotebookApp
-
-        NotebookApp.default_url = "/lab"
-        sys.argv.remove("--notebook")
-        NotebookApp.nbserver_extensions = {"jupyterlab.browser_check": True}
-        NotebookApp.open_browser = False
-        NotebookApp.launch_instance()
-    else:
-        BrowserApp.launch_instance()
+    BrowserApp.launch_instance()
diff --git a/jupyterlab/commands.py b/jupyterlab/commands.py
index 8630ea4ef19c..c762299fea49 100644
--- a/jupyterlab/commands.py
+++ b/jupyterlab/commands.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """JupyterLab command handler"""
 
 # Copyright (c) Jupyter Development Team.
@@ -18,7 +17,6 @@
 import subprocess
 import sys
 import tarfile
-import warnings
 from copy import deepcopy
 from glob import glob
 from pathlib import Path
@@ -28,14 +26,8 @@
 from urllib.request import Request, quote, urljoin, urlopen
 
 from jupyter_core.paths import jupyter_config_dir
-from jupyter_server.extension.serverextension import (
-    GREEN_ENABLED,
-    GREEN_OK,
-    RED_DISABLED,
-    RED_X,
-)
+from jupyter_server.extension.serverextension import GREEN_ENABLED, GREEN_OK, RED_DISABLED, RED_X
 from jupyterlab_server.config import (
-    LabConfig,
     get_federated_extensions,
     get_package_url,
     get_page_config,
@@ -44,7 +36,7 @@
 )
 from jupyterlab_server.process import Process, WatchHelper, list2cmdline, which
 from packaging.version import Version
-from traitlets import Bool, Dict, HasTraits, Instance, List, Unicode, default
+from traitlets import Bool, HasTraits, Instance, List, Unicode, default
 
 from jupyterlab._version import __version__
 from jupyterlab.coreconfig import CoreConfig
@@ -89,15 +81,17 @@ def __init__(self, cmd, logger=None, cwd=None, kill_event=None, env=None):
             The environment for the process.
         """
         if not isinstance(cmd, (list, tuple)):
-            raise ValueError("Command must be given as a list")
+            msg = "Command must be given as a list"
+            raise ValueError(msg)
 
         if kill_event and kill_event.is_set():
-            raise ValueError("Process aborted")
+            msg = "Process aborted"
+            raise ValueError(msg)
 
         self.logger = _ensure_logger(logger)
         self._last_line = ""
         self.cmd = cmd
-        self.logger.debug("> " + list2cmdline(cmd))
+        self.logger.debug(f"> {list2cmdline(cmd)}")
 
         self.proc = self._create_process(
             cwd=cwd,
@@ -122,7 +116,8 @@ def wait(self):
             sys.stdout.write("\b")
             if kill_event.is_set():
                 self.terminate()
-                raise ValueError("Process was aborted")
+                msg = "Process was aborted"
+                raise ValueError(msg)
             try:
                 out, _ = proc.communicate(timeout=0.1)
                 cache.append(out)
@@ -194,7 +189,15 @@ def dedupe_yarn(path, logger=None):
     """
     had_dupes = (
         ProgressProcess(
-            ["node", YARN_PATH, "yarn-deduplicate", "-s", "fewer", "--fail"],
+            [
+                "node",
+                YARN_PATH,
+                "dlx",
+                "yarn-berry-deduplicate",
+                "-s",
+                "fewerHighest",
+                "--fail",
+            ],
             cwd=path,
             logger=logger,
         ).wait()
@@ -213,7 +216,7 @@ def ensure_node_modules(cwd, logger=None):
     """
     logger = _ensure_logger(logger)
     yarn_proc = ProgressProcess(
-        ["node", YARN_PATH, "check", "--verify-tree"], cwd=cwd, logger=logger
+        ["node", YARN_PATH, "--immutable", "--immutable-cache"], cwd=cwd, logger=logger
     )
     ret = yarn_proc.wait()
 
@@ -315,7 +318,7 @@ def watch_dev(logger=None):
         startup_regex=WEBPACK_EXPECT,
     )
 
-    return package_procs + [wp_proc]
+    return [*package_procs, wp_proc]
 
 
 class AppOptions(HasTraits):
@@ -331,13 +334,13 @@ def __init__(self, logger=None, core_config=None, **kwargs):
         if "app_dir" in kwargs and not kwargs["app_dir"]:
             kwargs.pop("app_dir")
 
-        super(AppOptions, self).__init__(**kwargs)
+        super().__init__(**kwargs)
 
     app_dir = Unicode(help="The application directory")
 
     use_sys_dir = Bool(
         True,
-        help=("Whether to shadow the default app_dir if that is set to a " "non-default value"),
+        help=("Whether to shadow the default app_dir if that is set to a non-default value"),
     )
 
     logger = Instance(logging.Logger, help="The logger to use")
@@ -408,10 +411,7 @@ def watch(app_options=None):
     _node_check(app_options.logger)
     handler = _AppHandler(app_options)
 
-    if app_options.splice_source:
-        package_procs = watch_packages(app_options.logger)
-    else:
-        package_procs = []
+    package_procs = watch_packages(app_options.logger) if app_options.splice_source else []
 
     return package_procs + handler.watch()
 
@@ -459,22 +459,23 @@ def update_extension(name=None, all_=False, app_dir=None, app_options=None):
 def clean(app_options=None):
     """Clean the JupyterLab application directory."""
     app_options = _ensure_options(app_options)
-    handler = _AppHandler(app_options)
     logger = app_options.logger
     app_dir = app_options.app_dir
 
     logger.info("Cleaning %s...", app_dir)
     if app_dir == pjoin(HERE, "dev"):
-        raise ValueError("Cannot clean the dev app")
+        msg = "Cannot clean the dev app"
+        raise ValueError(msg)
     if app_dir == pjoin(HERE, "core"):
-        raise ValueError("Cannot clean the core app")
+        msg = "Cannot clean the core app"
+        raise ValueError(msg)
 
     if getattr(app_options, "all", False):
         logger.info("Removing everything in %s...", app_dir)
         _rmtree_star(app_dir, logger)
     else:
-        possibleTargets = ["extensions", "settings", "staging", "static"]
-        targets = [t for t in possibleTargets if getattr(app_options, t)]
+        possible_targets = ["extensions", "settings", "staging", "static"]
+        targets = [t for t in possible_targets if getattr(app_options, t)]
 
         for name in targets:
             target = pjoin(app_dir, name)
@@ -606,7 +607,7 @@ def read_package(target):
 # ----------------------------------------------------------------------
 
 
-class _AppHandler(object):
+class _AppHandler:
     def __init__(self, options):
         """Create a new _AppHandler object"""
         options = _ensure_options(options)
@@ -658,7 +659,7 @@ def install_extension(self, extension, existing=None, pin=None):
         # Local directories get name mangled and stored in metadata.
         if info["is_dir"]:
             config = self._read_build_config()
-            local = config.setdefault("local_extensions", dict())
+            local = config.setdefault("local_extensions", {})
             local[name] = info["source"]
             self._write_build_config(config)
 
@@ -706,7 +707,7 @@ def build(
         staging = pjoin(app_dir, "staging")
 
         # Make sure packages are installed.
-        ret = self._run(["node", YARN_PATH, "install", "--non-interactive"], cwd=staging)
+        ret = self._run(["node", YARN_PATH, "install"], cwd=staging)
         if ret != 0:
             msg = "npm dependencies failed to install"
             self.logger.debug(msg)
@@ -741,7 +742,7 @@ def watch(self):
         )
         return [proc]
 
-    def list_extensions(self):
+    def list_extensions(self):  # noqa
         """Print an output of the extensions."""
         self._ensure_disabled_info()
         logger = self.logger
@@ -764,14 +765,14 @@ def list_extensions(self):
         if local:
             logger.info("\n   local extensions:")
             for name in sorted(local):
-                logger.info("        %s: %s" % (name, local[name]))
+                logger.info(f"        {name}: {local[name]}")
 
         linked_packages = info["linked_packages"]
         if linked_packages:
             logger.info("\n   linked packages:")
             for key in sorted(linked_packages):
                 source = linked_packages[key]["source"]
-                logger.info("        %s: %s" % (key, source))
+                logger.info(f"        {key}: {source}")
 
         uninstalled_core = info["uninstalled_core"]
         if uninstalled_core:
@@ -790,7 +791,7 @@ def list_extensions(self):
             for item in sorted(disabled):
                 # Show that all plugins will be disabled if the whole extension matches
                 if item in all_exts:
-                    item += " (all plugins)"
+                    item += " (all plugins)"  # noqa PLW2901
                 logger.info("    %s" % item)
 
         # Here check if modules are improperly shadowed
@@ -812,7 +813,7 @@ def list_extensions(self):
             logger.info("\nBuild recommended, please run `jupyter lab build`:")
             [logger.info("    %s" % item) for item in messages]
 
-    def build_check(self, fast=None):
+    def build_check(self, fast=None):  # noqa
         """Determine whether JupyterLab should be built.
 
         Returns a list of messages.
@@ -831,7 +832,7 @@ def build_check(self, fast=None):
 
         static_data = self.info["static_data"]
         old_jlab = static_data["jupyterlab"]
-        old_deps = static_data.get("dependencies", dict())
+        old_deps = static_data.get("dependencies", {})
 
         # Look for mismatched version.
         static_version = old_jlab.get("version", "")
@@ -846,7 +847,7 @@ def build_check(self, fast=None):
         # Look for mismatched extensions.
         new_package = self._get_package_template(silent=fast)
         new_jlab = new_package["jupyterlab"]
-        new_deps = new_package.get("dependencies", dict())
+        new_deps = new_package.get("dependencies", {})
 
         for ext_type in ["extensions", "mimeExtensions"]:
             # Extensions that were added.
@@ -865,7 +866,7 @@ def build_check(self, fast=None):
 
         # Look for mismatched dependencies
         src_pkg_dir = pjoin(REPO_ROOT, "packages")
-        for (pkg, dep) in new_deps.items():
+        for pkg, dep in new_deps.items():
             if old_deps.get(pkg, "").startswith(src_pkg_dir):
                 continue
             if pkg not in old_deps:
@@ -878,7 +879,7 @@ def build_check(self, fast=None):
                 messages.append(msg % (pkg, old_deps[pkg], new_deps[pkg]))
 
         # Look for updated local extensions.
-        for (name, source) in local.items():
+        for name, source in local.items():
             if fast or name in shadowed_exts:
                 continue
             dname = pjoin(app_dir, "extensions")
@@ -886,7 +887,7 @@ def build_check(self, fast=None):
                 messages.append("%s content changed" % name)
 
         # Look for updated linked packages.
-        for (name, item) in linked.items():
+        for name, item in linked.items():
             if fast or name in shadowed_exts:
                 continue
             dname = pjoin(app_dir, "staging", "linked_packages")
@@ -906,7 +907,7 @@ def uninstall_extension(self, name):
         if name in info["federated_extensions"]:
             if (
                 info["federated_extensions"][name]
-                .get("install", dict())
+                .get("install", {})
                 .get("uninstallInstructions", None)
             ):
                 logger.error(
@@ -934,21 +935,21 @@ def uninstall_extension(self, name):
 
         local = info["local_extensions"]
 
-        for (extname, data) in info["extensions"].items():
+        for extname, data in info["extensions"].items():
             path = data["path"]
             if extname == name:
-                msg = "Uninstalling %s from %s" % (name, osp.dirname(path))
+                msg = f"Uninstalling {name} from {osp.dirname(path)}"
                 logger.info(msg)
                 os.remove(path)
                 # Handle local extensions.
                 if extname in local:
                     config = self._read_build_config()
-                    data = config.setdefault("local_extensions", dict())
+                    data = config.setdefault("local_extensions", {})  # noqa PLW2901
                     del data[extname]
                     self._write_build_config(config)
                 return True
 
-        logger.warn('No labextension named "%s" installed' % name)
+        logger.warning('No labextension named "%s" installed' % name)
         return False
 
     def uninstall_all_extensions(self):
@@ -957,7 +958,7 @@ def uninstall_all_extensions(self):
         Returns `True` if a rebuild is recommended, `False` otherwise
         """
         should_rebuild = False
-        for (extname, _) in self.info["extensions"].items():
+        for extname, _ in self.info["extensions"].items():
             uninstalled = self.uninstall_extension(extname)
             should_rebuild = should_rebuild or uninstalled
         return should_rebuild
@@ -968,7 +969,7 @@ def update_all_extensions(self):
         Returns `True` if a rebuild is recommended, `False` otherwise.
         """
         should_rebuild = False
-        for (extname, _) in self.info["extensions"].items():
+        for extname, _ in self.info["extensions"].items():
             if extname in self.info["local_extensions"]:
                 continue
             updated = self._update_extension(extname)
@@ -993,20 +994,20 @@ def _update_extension(self, name):
         """
         data = self.info["extensions"][name]
         if data["alias_package_source"]:
-            self.logger.warn("Skipping updating pinned extension '%s'." % name)
+            self.logger.warning("Skipping updating pinned extension '%s'." % name)
             return False
         try:
             latest = self._latest_compatible_package_version(name)
         except URLError:
             return False
         if latest is None:
-            self.logger.warn("No compatible version found for %s!" % (name,))
+            self.logger.warning(f"No compatible version found for {name}!")
             return False
         if latest == data["version"]:
             self.logger.info("Extension %r already up to date" % name)
             return False
-        self.logger.info("Updating %s to version %s" % (name, latest))
-        return self.install_extension("%s@%s" % (name, latest))
+        self.logger.info(f"Updating {name} to version {latest}")
+        return self.install_extension(f"{name}@{latest}")
 
     def link_package(self, path):
         """Link a package at the given path.
@@ -1033,7 +1034,7 @@ def link_package(self, path):
 
         # Add to metadata.
         config = self._read_build_config()
-        linked = config.setdefault("linked_packages", dict())
+        linked = config.setdefault("linked_packages", {})
         linked[info["name"]] = info["source"]
         self._write_build_config(config)
 
@@ -1048,19 +1049,19 @@ def unlink_package(self, path):
         """
         path = _normalize_path(path)
         config = self._read_build_config()
-        linked = config.setdefault("linked_packages", dict())
+        linked = config.setdefault("linked_packages", {})
 
         found = None
-        for (name, source) in linked.items():
-            if name == path or source == path:
+        for name, source in linked.items():
+            if path in {name, source}:
                 found = name
 
         if found:
             del linked[found]
         else:
-            local = config.setdefault("local_extensions", dict())
-            for (name, source) in local.items():
-                if name == path or source == path:
+            local = config.setdefault("local_extensions", {})
+            for name, source in local.items():
+                if path in {name, source}:
                     found = name
             if found:
                 del local[found]
@@ -1078,7 +1079,6 @@ def toggle_extension(self, extension, value, level="sys_prefix"):
 
         Returns `True` if a rebuild is recommended, `False` otherwise.
         """
-        lab_config = LabConfig()
         app_settings_dir = osp.join(self.app_dir, "settings")
 
         page_config = get_static_page_config(
@@ -1109,7 +1109,7 @@ def check_extension(self, extension, check_installed_only=False):
             return self._check_core_extension(extension, info, check_installed_only)
 
         if extension in info["linked_packages"]:
-            self.logger.info("%s:%s" % (extension, GREEN_ENABLED))
+            self.logger.info(f"{extension}:{GREEN_ENABLED}")
             return True
 
         return self._check_common_extension(extension, info, check_installed_only)
@@ -1117,43 +1117,43 @@ def check_extension(self, extension, check_installed_only=False):
     def _check_core_extension(self, extension, info, check_installed_only):
         """Check if a core extension is enabled or disabled"""
         if extension in info["uninstalled_core"]:
-            self.logger.info("%s:%s" % (extension, RED_X))
+            self.logger.info(f"{extension}:{RED_X}")
             return False
         if check_installed_only:
-            self.logger.info("%s: %s" % (extension, GREEN_OK))
+            self.logger.info(f"{extension}: {GREEN_OK}")
             return True
         if extension in info["disabled_core"]:
-            self.logger.info("%s: %s" % (extension, RED_DISABLED))
+            self.logger.info(f"{extension}: {RED_DISABLED}")
             return False
-        self.logger.info("%s:%s" % (extension, GREEN_ENABLED))
+        self.logger.info(f"{extension}:{GREEN_ENABLED}")
         return True
 
     def _check_common_extension(self, extension, info, check_installed_only):
         """Check if a common (non-core) extension is enabled or disabled"""
         if extension not in info["extensions"]:
-            self.logger.info("%s:%s" % (extension, RED_X))
+            self.logger.info(f"{extension}:{RED_X}")
             return False
 
         errors = self._get_extension_compat()[extension]
         if errors:
-            self.logger.info("%s:%s (compatibility errors)" % (extension, RED_X))
+            self.logger.info(f"{extension}:{RED_X} (compatibility errors)")
             return False
 
         if check_installed_only:
-            self.logger.info("%s: %s" % (extension, GREEN_OK))
+            self.logger.info(f"{extension}: {GREEN_OK}")
             return True
 
         if _is_disabled(extension, info["disabled"]):
-            self.logger.info("%s: %s" % (extension, RED_DISABLED))
+            self.logger.info(f"{extension}: {RED_DISABLED}")
             return False
 
-        self.logger.info("%s:%s" % (extension, GREEN_ENABLED))
+        self.logger.info(f"{extension}:{GREEN_ENABLED}")
         return True
 
     def _get_app_info(self):
         """Get information about the app."""
 
-        info = dict()
+        info = {}
         info["core_data"] = core_data = self.core_data
         info["extensions"] = extensions = self._get_extensions(core_data)
 
@@ -1161,7 +1161,7 @@ def _get_app_info(self):
         info["linked_packages"] = self._get_linked_packages()
         info["app_extensions"] = app = []
         info["sys_extensions"] = sys = []
-        for (name, data) in extensions.items():
+        for name, data in extensions.items():
             data["is_local"] = name in info["local_extensions"]
             if data["location"] == "app":
                 app.append(name)
@@ -1213,7 +1213,7 @@ def _ensure_disabled_info(self):
 
         info["disabled_core"] = disabled_core
 
-    def _populate_staging(self, name=None, version=None, static_url=None, clean=False):
+    def _populate_staging(self, name=None, version=None, static_url=None, clean=False):  # noqa
         """Set up the assets in the staging directory."""
         app_dir = self.app_dir
         staging = pjoin(app_dir, "staging")
@@ -1254,7 +1254,7 @@ def _populate_staging(self, name=None, version=None, static_url=None, clean=Fals
             target = pjoin(staging, fname)
             shutil.copy(pjoin(source_dir, fname), target)
 
-        for fname in [".yarnrc", "yarn.js"]:
+        for fname in [".yarnrc.yml", "yarn.js"]:
             target = pjoin(staging, fname)
             shutil.copy(pjoin(HERE, "staging", fname), target)
 
@@ -1284,11 +1284,11 @@ def _populate_staging(self, name=None, version=None, static_url=None, clean=Fals
         # Update the local extensions.
         extensions = self.info["extensions"]
         removed = False
-        for (key, source) in self.info["local_extensions"].items():
+        for key, source in self.info["local_extensions"].items():
             # Handle a local extension that was removed.
             if key not in extensions:
                 config = self._read_build_config()
-                data = config.setdefault("local_extensions", dict())
+                data = config.setdefault("local_extensions", {})
                 del data[key]
                 self._write_build_config(config)
                 removed = True
@@ -1302,7 +1302,7 @@ def _populate_staging(self, name=None, version=None, static_url=None, clean=Fals
 
         # Update the linked packages.
         linked = self.info["linked_packages"]
-        for (key, item) in linked.items():
+        for key, item in linked.items():
             dname = pjoin(staging, "linked_packages")
             self._update_local(key, item["source"], dname, item, "linked_packages")
 
@@ -1350,19 +1350,11 @@ def _populate_staging(self, name=None, version=None, static_url=None, clean=Fals
         # copy known-good yarn.lock if missing
         lock_path = pjoin(staging, "yarn.lock")
         lock_template = pjoin(HERE, "staging", "yarn.lock")
-        if (
-            self.registry != YARN_DEFAULT_REGISTRY
-        ):  # Replace on the fly the yarn repository see #3658
-            with open(lock_template, encoding="utf-8") as f:
-                template = f.read()
-            template = template.replace(YARN_DEFAULT_REGISTRY, self.registry.strip("/"))
-            with open(lock_path, "w", encoding="utf-8") as f:
-                f.write(template)
-        elif not osp.exists(lock_path):
+        if not osp.exists(lock_path):
             shutil.copy(lock_template, lock_path)
             os.chmod(lock_path, stat.S_IWRITE | stat.S_IREAD)
 
-    def _get_package_template(self, silent=False):
+    def _get_package_template(self, silent=False):  # noqa
         """Get the template the for staging package.json file."""
         logger = self.logger
         # make a deep copy of the data so we don't influence the core data
@@ -1380,17 +1372,17 @@ def format_path(path):
                 path = path.lower()
             return path
 
-        jlab["linkedPackages"] = dict()
+        jlab["linkedPackages"] = {}
 
         # Handle local extensions.
-        for (key, source) in local.items():
+        for key, source in local.items():
             if key in shadowed_exts:
                 continue
             jlab["linkedPackages"][key] = source
             data["resolutions"][key] = "file:" + self.info["extensions"][key]["path"]
 
         # Handle linked packages.
-        for (key, item) in linked.items():
+        for key, item in linked.items():
             if key in shadowed_exts:
                 continue
             path = pjoin(self.app_dir, "staging", "linked_packages")
@@ -1399,11 +1391,11 @@ def format_path(path):
             jlab["linkedPackages"][key] = item["source"]
             data["resolutions"][key] = format_path(path)
 
-        data["jupyterlab"]["extensionMetadata"] = dict()
+        data["jupyterlab"]["extensionMetadata"] = {}
 
         # Handle extensions
         compat_errors = self._get_extension_compat()
-        for (key, value) in extensions.items():
+        for key, value in extensions.items():
             # Reject incompatible extensions with a message.
             errors = compat_errors[key]
             if errors:
@@ -1479,7 +1471,7 @@ def _update_local(self, name, source, dname, data, dtype):
     def _get_extensions(self, core_data):
         """Get the extensions for the application."""
         app_dir = self.app_dir
-        extensions = dict()
+        extensions = {}
 
         # Get system level packages.
         sys_path = pjoin(self.sys_dir, "extensions")
@@ -1498,13 +1490,13 @@ def _get_extensions(self, core_data):
 
     def _get_extensions_in_dir(self, dname, core_data):
         """Get the extensions in a given directory."""
-        extensions = dict()
+        extensions = {}
         location = "app" if dname == self.app_dir else "sys"
         for target in glob(pjoin(dname, "extensions", "*.tgz")):
             data = read_package(target)
-            deps = data.get("dependencies", dict())
+            deps = data.get("dependencies", {})
             name = data["name"]
-            jlab = data.get("jupyterlab", dict())
+            jlab = data.get("jupyterlab", {})
             path = osp.abspath(target)
 
             filename = osp.basename(target)
@@ -1513,30 +1505,31 @@ def _get_extensions_in_dir(self, dname, core_data):
             else:
                 alias = None
             url = get_package_url(data)
-            extensions[alias or name] = dict(
-                path=path,
-                filename=osp.basename(path),
-                url=url,
-                version=data["version"],
+            extensions[alias or name] = {
+                "description": data.get("description", ""),
+                "path": path,
+                "filename": osp.basename(path),
+                "url": url,
+                "version": data["version"],
                 # Only save the package name if the extension name is an alias
-                alias_package_source=name if alias else None,
-                jupyterlab=jlab,
-                dependencies=deps,
-                tar_dir=osp.dirname(path),
-                location=location,
-            )
+                "alias_package_source": name if alias else None,
+                "jupyterlab": jlab,
+                "dependencies": deps,
+                "tar_dir": osp.dirname(path),
+                "location": location,
+            }
         return extensions
 
     def _get_extension_compat(self):
         """Get the extension compatibility info."""
-        compat = dict()
+        compat = {}
         core_data = self.info["core_data"]
         seen = set()
-        for (name, data) in self.info["federated_extensions"].items():
+        for name, data in self.info["federated_extensions"].items():
             deps = data["dependencies"]
             compat[name] = _validate_compatibility(name, deps, core_data)
             seen.add(name)
-        for (name, data) in self.info["extensions"].items():
+        for name, data in self.info["extensions"].items():
             if name in seen:
                 continue
             deps = data["dependencies"]
@@ -1551,18 +1544,18 @@ def _get_linked_packages(self):
         """Get the linked packages."""
         info = self._get_local_data("linked_packages")
         dname = pjoin(self.app_dir, "staging", "linked_packages")
-        for (name, source) in info.items():
-            info[name] = dict(source=source, filename="", tar_dir=dname)
+        for name, source in info.items():
+            info[name] = {"source": source, "filename": "", "tar_dir": dname}
 
         if not osp.exists(dname):
             return info
 
         for path in glob(pjoin(dname, "*.tgz")):
-            path = osp.abspath(path)
+            path = osp.abspath(path)  # noqa PLW2901
             data = read_package(path)
             name = data["name"]
             if name not in info:
-                self.logger.warn("Removing orphaned linked package %s" % name)
+                self.logger.warning("Removing orphaned linked package %s" % name)
                 os.remove(path)
                 continue
             item = info[name]
@@ -1601,7 +1594,7 @@ def _list_extensions(self, info, ext_type):
 
         error_accumulator = {}
 
-        logger.info("   %s dir: %s" % (ext_type, dname))
+        logger.info(f"   {ext_type} dir: {dname}")
         for name in sorted(names):
             if name in info["federated_extensions"]:
                 continue
@@ -1622,9 +1615,9 @@ def _list_extensions(self, info, ext_type):
             # If we have the package name in the data, this means this extension's name is the alias name
             alias_package_source = data["alias_package_source"]
             if alias_package_source:
-                logger.info("        %s %s v%s%s" % (name, alias_package_source, version, extra))
+                logger.info(f"        {name} {alias_package_source} v{version}{extra}")
             else:
-                logger.info("        %s v%s%s" % (name, version, extra))
+                logger.info(f"        {name} v{version}{extra}")
             if errors:
                 error_accumulator[name] = (version, errors)
 
@@ -1641,7 +1634,7 @@ def _list_federated_extensions(self):
 
         error_accumulator = {}
 
-        ext_dirs = dict((p, False) for p in self.labextensions_path)
+        ext_dirs = {p: False for p in self.labextensions_path}
         for value in info["federated_extensions"].values():
             ext_dirs[value["ext_dir"]] = True
 
@@ -1669,8 +1662,8 @@ def _list_federated_extensions(self):
 
                 install = data.get("install")
                 if install:
-                    extra += " (%s, %s)" % (install["packageManager"], install["packageName"])
-                logger.info("        %s v%s%s" % (name, version, extra))
+                    extra += " ({}, {})".format(install["packageManager"], install["packageName"])
+                logger.info(f"        {name} v{version}{extra}")
                 if errors:
                     error_accumulator[name] = (version, errors)
             # Add a spacer line after
@@ -1699,16 +1692,16 @@ def _get_local_data(self, source):
         """Get the local data for extensions or linked packages."""
         config = self._read_build_config()
 
-        data = config.setdefault(source, dict())
+        data = config.setdefault(source, {})
         dead = []
-        for (name, source) in data.items():
+        for name, source in data.items():
             if not osp.exists(source):
                 dead.append(name)
 
         for name in dead:
             link_type = source.replace("_", " ")
-            msg = '**Note: Removing dead %s "%s"' % (link_type, name)
-            self.logger.warn(msg)
+            msg = f'**Note: Removing dead {link_type} "{name}"'
+            self.logger.warning(msg)
             del data[name]
 
         if dead:
@@ -1737,12 +1730,12 @@ def _install_extension(self, extension, tempdir, pin=None):
                 try:
                     version = self._latest_compatible_package_version(name)
                 except URLError:
-                    raise ValueError(msg)
+                    raise ValueError(msg) from None
             else:
                 raise ValueError(msg)
 
         # Verify package compatibility.
-        deps = data.get("dependencies", dict())
+        deps = data.get("dependencies", {})
         errors = _validate_compatibility(extension, deps, self.core_data)
         if errors:
             msg = _format_compatibility_errors(data["name"], data["version"], errors)
@@ -1751,13 +1744,13 @@ def _install_extension(self, extension, tempdir, pin=None):
                     version = self._latest_compatible_package_version(name)
                 except URLError:
                     # We cannot add any additional information to error message
-                    raise ValueError(msg)
+                    raise ValueError(msg) from None
 
                 if version and name:
                     self.logger.debug("Incompatible extension:\n%s", name)
                     self.logger.debug("Found compatible version: %s", version)
                     with TemporaryDirectory() as tempdir2:
-                        return self._install_extension("%s@%s" % (name, version), tempdir2)
+                        return self._install_extension(f"{name}@{version}", tempdir2)
 
                 # Extend message to better guide the user what to do:
                 conflicts = "\n".join(msg.splitlines()[2:])
@@ -1786,7 +1779,7 @@ def _extract_package(self, source, tempdir, pin=None):
         if is_dir and not osp.exists(pjoin(source, "node_modules")):
             self._run(["node", YARN_PATH, "install"], cwd=source)
 
-        info = dict(source=source, is_dir=is_dir)
+        info = {"source": source, "is_dir": is_dir}
 
         ret = self._run([which("npm"), "pack", source], cwd=tempdir)
         if ret != 0:
@@ -1804,7 +1797,7 @@ def _extract_package(self, source, tempdir, pin=None):
             info["path"] = path
         if pin:
             old_path = info["path"]
-            new_path = pjoin(osp.dirname(old_path), "{}{}.tgz".format(PIN_PREFIX, pin))
+            new_path = pjoin(osp.dirname(old_path), f"{PIN_PREFIX}{pin}.tgz")
             shutil.move(old_path, new_path)
             info["path"] = new_path
 
@@ -1835,13 +1828,12 @@ def sort_key(key_value):
                 # skip deprecated versions
                 if "deprecated" in data:
                     self.logger.debug(
-                        "Disregarding compatible version of package as it is deprecated: %s@%s"
-                        % (name, version)
+                        f"Disregarding compatible version of package as it is deprecated: {name}@{version}"
                     )
                     continue
                 # Verify that the version is a valid extension.
                 with TemporaryDirectory() as tempdir:
-                    info = self._extract_package("%s@%s" % (name, version), tempdir)
+                    info = self._extract_package(f"{name}@{version}", tempdir)
                 if _validate_extension(info["data"]):
                     # Invalid, do not consider other versions
                     return
@@ -1869,7 +1861,6 @@ def sort_key(key_value):
                 return _semver_key(key_value[0], prerelease_first=True)
 
             for version, data in sorted(versions.items(), key=sort_key, reverse=True):
-
                 # skip deprecated versions
                 if "deprecated" in data:
                     continue
@@ -1878,14 +1869,14 @@ def sort_key(key_value):
                 errors = _validate_compatibility(name, deps, core_data)
                 if not errors:
                     # Found a compatible version
-                    keys.append("%s@%s" % (name, version))
+                    keys.append(f"{name}@{version}")
                     break  # break inner for
 
         versions = {}
         if not keys:
             return versions
         with TemporaryDirectory() as tempdir:
-            ret = self._run([which("npm"), "pack"] + keys, cwd=tempdir)
+            ret = self._run([which("npm"), "pack", *keys], cwd=tempdir)
             if ret != 0:
                 msg = '"%s" is not a valid npm package'
                 raise ValueError(msg % keys)
@@ -1925,7 +1916,7 @@ def sort_key(key_value):
             core_deps = core_data["resolutions"]
             singletons = core_data["jupyterlab"]["singletonPackages"]
 
-            for (key, value) in latest_deps.items():
+            for key, value in latest_deps.items():
                 if key in singletons:
                     # Drop prereleases in comparisons to allow extension authors
                     # to not have to update their versions for each
@@ -1962,7 +1953,8 @@ def _run(self, cmd, **kwargs):
         Returns the exit code.
         """
         if self.kill_event.is_set():
-            raise ValueError("Command was killed")
+            msg = "Command was killed"
+            raise ValueError(msg)
 
         kwargs["logger"] = self.logger
         kwargs["kill_event"] = self.kill_event
@@ -1974,7 +1966,7 @@ def _node_check(logger):
     """Check for the existence of nodejs with the correct version."""
     node = which("node")
     try:
-        output = subprocess.check_output([node, "node-version-check.js"], cwd=HERE)
+        output = subprocess.check_output([node, "node-version-check.js"], cwd=HERE)  # noqa S603
         logger.debug(output.decode("utf-8"))
     except Exception:
         data = CoreConfig()._data
@@ -1983,7 +1975,7 @@ def _node_check(logger):
             "Please install nodejs %s before continuing. nodejs may be installed using conda or directly from the nodejs website."
             % ver
         )
-        raise ValueError(msg)
+        raise ValueError(msg) from None
 
 
 def _yarn_config(logger):
@@ -2002,7 +1994,7 @@ def _yarn_config(logger):
 
     try:
         output_binary = subprocess.check_output(
-            [node, YARN_PATH, "config", "list", "--json"], stderr=subprocess.PIPE, cwd=HERE
+            [node, YARN_PATH, "config", "--json"], stderr=subprocess.PIPE, cwd=HERE  # noqa S603
         )
         output = output_binary.decode("utf-8")
         lines = iter(output.splitlines())
@@ -2024,9 +2016,9 @@ def _yarn_config(logger):
             )
         )
     except Exception as e:
-        logger.error("Fail to get yarn configuration. {!s}".format(e))
-    finally:
-        return configuration
+        logger.error(f"Fail to get yarn configuration. {e!s}")
+
+    return configuration
 
 
 def _ensure_logger(logger=None):
@@ -2069,7 +2061,7 @@ def _rmtree_star(path, logger):
             _rmtree(file_path, logger)
 
 
-def _validate_extension(data):
+def _validate_extension(data):  # noqa
     """Detect if a package is an extension using its metadata.
 
     Returns any problems it finds.
@@ -2081,8 +2073,8 @@ def _validate_extension(data):
         return ["The `jupyterlab` key must be a JSON object"]
     extension = jlab.get("extension", False)
     mime_extension = jlab.get("mimeExtension", False)
-    themePath = jlab.get("themePath", "")
-    schemaDir = jlab.get("schemaDir", "")
+    theme_path = jlab.get("themePath", "")
+    schema_dir = jlab.get("schemaDir", "")
 
     messages = []
     if not extension and not mime_extension:
@@ -2113,11 +2105,11 @@ def _validate_extension(data):
     if mime_extension and mime_extension not in files:
         messages.append('Missing mimeExtension module "%s"' % mime_extension)
 
-    if themePath and not any(f.startswith(str(Path(themePath))) for f in files):
-        messages.append('themePath is empty: "%s"' % themePath)
+    if theme_path and not any(f.startswith(str(Path(theme_path))) for f in files):
+        messages.append('themePath is empty: "%s"' % theme_path)
 
-    if schemaDir and not any(f.startswith(str(Path(schemaDir))) for f in files):
-        messages.append('schemaDir is empty: "%s"' % schemaDir)
+    if schema_dir and not any(f.startswith(str(Path(schema_dir))) for f in files):
+        messages.append('schemaDir is empty: "%s"' % schema_dir)
 
     return messages
 
@@ -2128,7 +2120,7 @@ def _tarsum(input_file):
     """
     tar = tarfile.open(input_file, "r")
     chunk_size = 100 * 1024
-    h = hashlib.new("sha1")
+    h = hashlib.new("sha1")  # noqa: S324
 
     for member in tar:
         if not member.isfile():
@@ -2158,7 +2150,7 @@ def _validate_compatibility(extension, deps, core_data):
 
     errors = []
 
-    for (key, value) in deps.items():
+    for key, value in deps.items():
         if key in singletons:
             # Drop prereleases in comparisons to allow extension authors
             # to not have to update their versions for each
@@ -2184,7 +2176,7 @@ def _test_overlap(spec1, spec2, drop_prerelease1=False, drop_prerelease2=False):
     return cmp == 0
 
 
-def _compare_ranges(spec1, spec2, drop_prerelease1=False, drop_prerelease2=False):
+def _compare_ranges(spec1, spec2, drop_prerelease1=False, drop_prerelease2=False):  # noqa
     """Test whether two version specs overlap.
 
     Returns `None` if we cannot determine compatibility,
@@ -2269,7 +2261,8 @@ def noop(x, y, z):
                 return_value = None
             continue
 
-        raise AssertionError("Unexpected case comparing version ranges")
+        msg = "Unexpected case comparing version ranges"
+        raise AssertionError(msg)
 
     if return_value is False:
         return_value = None
@@ -2281,7 +2274,7 @@ def _is_disabled(name, disabled=None):
     disabled = disabled or {}
     for pattern, value in disabled.items():
         # skip packages explicitly marked as not disabled
-        if value == False:
+        if value is False:
             continue
         if name == pattern:
             return True
@@ -2310,7 +2303,7 @@ def _format_compatibility_errors(name, version, errors):
     msg += "Extension".ljust(l1)
     msg += "Package\n"
 
-    for (pkg, jlab, ext) in msgs:
+    for pkg, jlab, ext in msgs:
         msg += jlab.ljust(l0) + ext.ljust(l1) + pkg + "\n"
 
     return msg
@@ -2322,7 +2315,7 @@ def _log_multiple_compat_errors(logger, errors_map):
     outdated = []
     others = []
 
-    for name, (version, errors) in errors_map.items():
+    for name, (_, errors) in errors_map.items():
         age = _compat_error_age(errors)
         if age > 0:
             outdated.append(name)
@@ -2330,7 +2323,7 @@ def _log_multiple_compat_errors(logger, errors_map):
             others.append(name)
 
     if outdated:
-        logger.warn(
+        logger.warning(
             "\n        ".join(
                 [
                     "\n   The following extensions are outdated:",
@@ -2343,7 +2336,7 @@ def _log_multiple_compat_errors(logger, errors_map):
     for name in others:
         version, errors = errors_map[name]
         msg = _format_compatibility_errors(name, version, errors)
-        logger.warn(msg + "\n")
+        logger.warning(f"{msg}\n")
 
 
 def _log_single_compat_errors(logger, name, version, errors):
@@ -2351,14 +2344,14 @@ def _log_single_compat_errors(logger, name, version, errors):
 
     age = _compat_error_age(errors)
     if age > 0:
-        logger.warn('The extension "%s" is outdated.\n', name)
+        logger.warning('The extension "%s" is outdated.\n', name)
     else:
         msg = _format_compatibility_errors(name, version, errors)
-        logger.warn(msg + "\n")
+        logger.warning(f"{msg}\n")
 
 
 def _compat_error_age(errors):
-    """Compare all incompatabilites for an extension.
+    """Compare all incompatibilities for an extension.
 
     Returns a number > 0 if all extensions are older than that supported by lab.
     Returns a number < 0 if all extensions are newer than that supported by lab.
@@ -2427,14 +2420,11 @@ def _semver_key(version, prerelease_first=False):
     (0.x -> 1.0-pre -> 1.x -> 2.0-pre -> 2.x).
     """
     v = make_semver(version, True)
-    if prerelease_first:
-        key = (0,) if v.prerelease else (1,)
-    else:
-        key = ()
-    key = key + (v.major, v.minor, v.patch)
+    key = ((0,) if v.prerelease else (1,)) if prerelease_first else ()
+    key = (*key, v.major, v.minor, v.patch)
     if not prerelease_first:
         #  NOT having a prerelease is > having one
-        key = key + (0,) if v.prerelease else (1,)
+        key = (*key, 0) if v.prerelease else (1,)
     if v.prerelease:
         key = key + tuple(_semver_prerelease_key(v.prerelease))
 
@@ -2446,9 +2436,7 @@ def _fetch_package_metadata(registry, name, logger):
     req = Request(
         urljoin(registry, quote(name, safe="@")),
         headers={
-            "Accept": (
-                "application/vnd.npm.install-v1+json;" " q=1.0, application/json; q=0.8, */*"
-            )
+            "Accept": ("application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*")
         },
     )
     try:
@@ -2456,7 +2444,7 @@ def _fetch_package_metadata(registry, name, logger):
     except AttributeError:
         logger.debug("Fetching URL: %s" % (req.get_full_url()))
     try:
-        with contextlib.closing(urlopen(req)) as response:
+        with contextlib.closing(urlopen(req)) as response:  # noqa S310
             return json.loads(response.read().decode("utf-8"))
     except URLError as exc:
         logger.warning("Failed to fetch package metadata for %r: %r", name, exc)
diff --git a/jupyterlab/coreconfig.py b/jupyterlab/coreconfig.py
index 8d9db27189cc..ac0dfa20c60c 100644
--- a/jupyterlab/coreconfig.py
+++ b/jupyterlab/coreconfig.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
@@ -33,10 +32,11 @@ def _only_nonlab(collection):
     lumino and react).
     """
     if isinstance(collection, dict):
-        return dict((k, v) for (k, v) in collection.items() if not _is_lab_package(k))
+        return {k: v for (k, v) in collection.items() if not _is_lab_package(k)}
     elif isinstance(collection, (list, tuple)):
         return list(filterfalse(_is_lab_package, collection))
-    raise TypeError("collection arg should be either dict or list/tuple")
+    msg = "collection arg should be either dict or list/tuple"
+    raise TypeError(msg)
 
 
 class CoreConfig:
@@ -66,11 +66,14 @@ def add(self, name, semver, extension=False, mime_extension=False):
         """
         data = self._data
         if not name:
-            raise ValueError("Missing package name")
+            msg = "Missing package name"
+            raise ValueError(msg)
         if not semver:
-            raise ValueError("Missing package semver")
+            msg = "Missing package semver"
+            raise ValueError(msg)
         if name in data["resolutions"]:
-            raise ValueError("Package already present: %r" % (name,))
+            msg = f"Package already present: {name!r}"
+            raise ValueError(msg)
         data["resolutions"][name] = semver
 
         # If both mimeExtension and extensions are True, treat
@@ -131,23 +134,21 @@ def clear_packages(self, lab_only=True):
     def extensions(self):
         """A dict mapping all extension names to their semver"""
         data = self._data
-        return dict((k, data["resolutions"][k]) for k in data["jupyterlab"]["extensions"].keys())
+        return {k: data["resolutions"][k] for k in data["jupyterlab"]["extensions"]}
 
     @property
     def mime_extensions(self):
         """A dict mapping all MIME extension names to their semver"""
         data = self._data
-        return dict(
-            (k, data["resolutions"][k]) for k in data["jupyterlab"]["mimeExtensions"].keys()
-        )
+        return {k: data["resolutions"][k] for k in data["jupyterlab"]["mimeExtensions"]}
 
     @property
     def singletons(self):
         """A dict mapping all singleton names to their semver"""
         data = self._data
-        return dict(
-            (k, data["resolutions"].get(k, None)) for k in data["jupyterlab"]["singletonPackages"]
-        )
+        return {
+            k: data["resolutions"].get(k, None) for k in data["jupyterlab"]["singletonPackages"]
+        }
 
     @property
     def static_dir(self):
diff --git a/jupyterlab/debuglog.py b/jupyterlab/debuglog.py
index 68d97deb41d5..ab5127865b33 100644
--- a/jupyterlab/debuglog.py
+++ b/jupyterlab/debuglog.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """A mixin for adding a debug log file.
 
 """
@@ -12,6 +11,7 @@
 import sys
 import tempfile
 import traceback
+import warnings
 
 from traitlets import Unicode
 from traitlets.config import Configurable
@@ -51,11 +51,11 @@ def debug_logging(self):
             for line in msg:
                 self.log.debug(line)
             if isinstance(ex, SystemExit):
-                print("An error occurred. See the log file for details: ", log_path)
+                warnings.warn(f"An error occurred. See the log file for details: {log_path!s}")
                 raise
-            print("An error occurred.")
-            print(msg[-1].strip())
-            print("See the log file for details: ", log_path)
+            warnings.warn("An error occurred.")
+            warnings.warn(msg[-1].strip())
+            warnings.warn(f"See the log file for details: {log_path!s}")
             self.exit(1)
         else:
             log.removeHandler(_debug_handler)
diff --git a/jupyterlab/extensions/__init__.py b/jupyterlab/extensions/__init__.py
new file mode 100644
index 000000000000..ba9d89f360c5
--- /dev/null
+++ b/jupyterlab/extensions/__init__.py
@@ -0,0 +1,46 @@
+"""Extension manager for JupyterLab."""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import sys
+from typing import Optional
+
+from traitlets.config import Configurable
+
+from .manager import ActionResult, ExtensionManager, ExtensionPackage  # noqa: F401
+from .pypi import PyPIExtensionManager
+from .readonly import ReadOnlyExtensionManager
+
+# See compatibility note on `group` keyword in https://docs.python.org/3/library/importlib.metadata.html#entry-points
+if sys.version_info < (3, 10):
+    from importlib_metadata import entry_points
+else:
+    from importlib.metadata import entry_points
+
+# Supported third-party services
+MANAGERS = {}
+
+for entry in entry_points(group="jupyterlab.extension_manager_v1"):
+    MANAGERS[entry.name] = entry
+
+
+# Entry points
+
+
+def get_readonly_manager(
+    app_options: Optional[dict] = None,
+    ext_options: Optional[dict] = None,
+    parent: Optional[Configurable] = None,
+) -> ExtensionManager:
+    """Read-Only Extension Manager factory"""
+    return ReadOnlyExtensionManager(app_options, ext_options, parent)
+
+
+def get_pypi_manager(
+    app_options: Optional[dict] = None,
+    ext_options: Optional[dict] = None,
+    parent: Optional[Configurable] = None,
+) -> ExtensionManager:
+    """PyPi Extension Manager factory"""
+    return PyPIExtensionManager(app_options, ext_options, parent)
diff --git a/jupyterlab/extensions/manager.py b/jupyterlab/extensions/manager.py
new file mode 100644
index 000000000000..1e279de85c86
--- /dev/null
+++ b/jupyterlab/extensions/manager.py
@@ -0,0 +1,584 @@
+"""Base classes for the extension manager."""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import json
+import re
+from dataclasses import dataclass, field, replace
+from pathlib import Path
+from typing import Dict, List, Optional, Set, Tuple
+
+import tornado
+from traitlets.config import Configurable, LoggingConfigurable
+
+from jupyterlab.commands import (
+    _AppHandler,
+    _ensure_options,
+    disable_extension,
+    enable_extension,
+    get_app_info,
+)
+
+PYTHON_TO_SEMVER = {"a": "-alpha.", "b": "-beta.", "rc": "-rc."}
+
+
+def _ensure_compat_errors(info, app_options):
+    """Ensure that the app info has compat_errors field"""
+    handler = _AppHandler(app_options)
+    info["compat_errors"] = handler._get_extension_compat()
+
+
+_message_map = {
+    "install": re.compile(r"(?P<name>.*) needs to be included in build"),
+    "uninstall": re.compile(r"(?P<name>.*) needs to be removed from build"),
+    "update": re.compile(r"(?P<name>.*) changed from (?P<oldver>.*) to (?P<newver>.*)"),
+}
+
+
+def _build_check_info(app_options):
+    """Get info about packages scheduled for (un)install/update"""
+    handler = _AppHandler(app_options)
+    messages = handler.build_check(fast=True)
+    # Decode the messages into a dict:
+    status = {"install": [], "uninstall": [], "update": []}
+    for msg in messages:
+        for key, pattern in _message_map.items():
+            match = pattern.match(msg)
+            if match:
+                status[key].append(match.group("name"))
+    return status
+
+
+@dataclass(frozen=True)
+class ExtensionPackage:
+    """Extension package entry.
+
+    Attributes:
+        name: Package name
+        description: Package description
+        homepage_url: Package home page
+        pkg_type: Type of package - ["prebuilt", "source"]
+        allowed: [optional] Whether this extension is allowed or not - default True
+        approved: [optional] Whether the package is approved by your administrators - default False
+        companion: [optional] Type of companion for the frontend extension - [None, "kernel", "server"]; default None
+        core: [optional] Whether the package is a core package or not - default False
+        enabled: [optional] Whether the package is enabled or not - default False
+        install: [optional] Extension package installation instructions - default None
+        installed: [optional] Whether the extension is currently installed - default None
+        installed_version: [optional] Installed version - default ""
+        latest_version: [optional] Latest available version - default ""
+        status: [optional] Package status - ["ok", "warning", "error"]; default "ok"
+        author: [optional] Package author - default None
+        license: [optional] Package license - default None
+        bug_tracker_url: [optional] Package bug tracker URL - default None
+        documentation_url: [optional] Package documentation URL - default None
+        package_manager_url: Package home page in the package manager - default None
+        repository_url: [optional] Package code repository URL - default None
+    """
+
+    name: str
+    description: str
+    homepage_url: str
+    pkg_type: str
+    allowed: bool = True
+    approved: bool = False
+    companion: Optional[str] = None
+    core: bool = False
+    enabled: bool = False
+    install: Optional[dict] = None
+    installed: Optional[bool] = None
+    installed_version: str = ""
+    latest_version: str = ""
+    status: str = "ok"
+    author: Optional[str] = None
+    license: Optional[str] = None  # noqa
+    bug_tracker_url: Optional[str] = None
+    documentation_url: Optional[str] = None
+    package_manager_url: Optional[str] = None
+    repository_url: Optional[str] = None
+
+
+@dataclass(frozen=True)
+class ActionResult:
+    """Action result
+
+    Attributes:
+        status: Action status - ["ok", "warning", "error"]
+        message: Action status explanation
+        needs_restart: Required action follow-up - Valid follow-up are "frontend", "kernel" and "server"
+    """
+
+    # Note: no simple way to use Enum in dataclass - https://stackoverflow.com/questions/72859557/typing-dataclass-that-can-only-take-enum-values
+    #       keeping str for simplicity
+    status: str
+    message: Optional[str] = None
+    needs_restart: List[str] = field(default_factory=list)
+
+
+@dataclass
+class ExtensionManagerOptions:
+    """Extension manager options.
+
+    Attributes:
+        allowed_extensions_uris: A list of comma-separated URIs to get the allowed extensions list
+        blocked_extensions_uris: A list of comma-separated URIs to get the blocked extensions list
+        listings_refresh_seconds: The interval delay in seconds to refresh the lists
+        listings_tornado_options: The optional kwargs to use for the listings HTTP requests as described on https://www.tornadoweb.org/en/stable/httpclient.html#tornado.httpclient.HTTPRequest
+    """
+
+    allowed_extensions_uris: Set[str] = field(default_factory=set)
+    blocked_extensions_uris: Set[str] = field(default_factory=set)
+    listings_refresh_seconds: int = 60 * 60
+    listings_tornado_options: dict = field(default_factory=dict)
+
+
+@dataclass(frozen=True)
+class ExtensionManagerMetadata:
+    """Extension manager metadata.
+
+    Attributes:
+        name: Extension manager name to be displayed
+        can_install: Whether the extension manager can un-/install packages (default False)
+        install_path: Installation path for the extensions (default None); e.g. environment path
+    """
+
+    name: str
+    can_install: bool = False
+    install_path: Optional[str] = None
+
+
+@dataclass
+class ExtensionsCache:
+    """Extensions cache
+
+    Attributes:
+        cache: Extension list per page
+        last_page: Last available page result
+    """
+
+    cache: Dict[int, Optional[Dict[str, ExtensionPackage]]] = field(default_factory=dict)
+    last_page: int = 1
+
+
+class ExtensionManager(LoggingConfigurable):
+    """Base abstract extension manager.
+
+    Note:
+        Any concrete implementation will need to implement the five
+        following abstract methods:
+        - :ref:`metadata`
+        - :ref:`get_latest_version`
+        - :ref:`list_packages`
+        - :ref:`install`
+        - :ref:`uninstall`
+
+        It could be interesting to override the :ref:`get_normalized_name`
+        method too.
+
+    Args:
+        app_options: Application options
+        ext_options: Extension manager options
+        parent: Configurable parent
+
+    Attributes:
+        log: Logger
+        app_dir: Application directory
+        core_config: Core configuration
+        app_options: Application options
+        options: Extension manager options
+    """
+
+    def __init__(
+        self,
+        app_options: Optional[dict] = None,
+        ext_options: Optional[dict] = None,
+        parent: Optional[Configurable] = None,
+    ) -> None:
+        super().__init__(parent=parent)
+        app_options = _ensure_options(app_options)
+        self.log = app_options.logger
+        self.app_dir = Path(app_options.app_dir)
+        self.core_config = app_options.core_config
+        self.app_options = app_options
+        self.options = ExtensionManagerOptions(**(ext_options or {}))
+        self._extensions_cache: Dict[Optional[str], ExtensionsCache] = {}
+        self._listings_cache: Optional[dict] = None
+        self._listings_block_mode = True
+        self._listing_fetch: Optional[tornado.ioloop.PeriodicCallback] = None
+
+        if len(self.options.allowed_extensions_uris) or len(self.options.blocked_extensions_uris):
+            self._listings_block_mode = len(self.options.allowed_extensions_uris) == 0
+            if not self._listings_block_mode and len(self.options.blocked_extensions_uris) > 0:
+                self.log.warning(
+                    "You have define simultaneously blocked and allowed extensions listings. The allowed listing will take precedence."
+                )
+
+            self._listing_fetch = tornado.ioloop.PeriodicCallback(
+                self._fetch_listings,
+                callback_time=self.options.listings_refresh_seconds * 1000,
+                jitter=0.1,
+            )
+            self._listing_fetch.start()
+
+    def __del__(self):
+        if self._listing_fetch is not None:
+            self._listing_fetch.stop()
+
+    @property
+    def metadata(self) -> ExtensionManagerMetadata:
+        """Extension manager metadata."""
+        raise NotImplementedError()
+
+    async def get_latest_version(self, extension: str) -> Optional[str]:
+        """Return the latest available version for a given extension.
+
+        Args:
+            pkg: The extension name
+        Returns:
+            The latest available version
+        """
+        raise NotImplementedError()
+
+    async def list_packages(
+        self, query: str, page: int, per_page: int
+    ) -> Tuple[Dict[str, ExtensionPackage], Optional[int]]:
+        """List the available extensions.
+
+        Args:
+            query: The search extension query
+            page: The result page
+            per_page: The number of results per page
+        Returns:
+            The available extensions in a mapping {name: metadata}
+            The results last page; None if the manager does not support pagination
+        """
+        raise NotImplementedError()
+
+    async def install(self, extension: str, version: Optional[str] = None) -> ActionResult:
+        """Install the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            extension: The extension name
+            version: The version to install; default None (i.e. the latest possible)
+        Returns:
+            The action result
+        """
+        raise NotImplementedError()
+
+    async def uninstall(self, extension: str) -> ActionResult:
+        """Uninstall the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            extension: The extension name
+        Returns:
+            The action result
+        """
+        raise NotImplementedError()
+
+    async def disable(self, extension: str) -> ActionResult:
+        """Disable an extension.
+
+        Args:
+            extension: The extension name
+        Returns:
+            The action result
+        """
+        try:
+            disable_extension(extension, app_options=self.app_options)
+            return ActionResult(status="ok", needs_restart=["frontend"])
+        except Exception as err:
+            return ActionResult(status="error", message=repr(err))
+
+    async def enable(self, extension: str) -> ActionResult:
+        """Enable an extension.
+
+        Args:
+            extension: The extension name
+        Returns:
+            The action result
+        """
+        try:
+            enable_extension(extension, app_options=self.app_options)
+            return ActionResult(status="ok", needs_restart=["frontend"])
+        except Exception as err:
+            return ActionResult(status="error", message=repr(err))
+
+    @staticmethod
+    def get_semver_version(version: str) -> str:
+        """Convert a Python version to Semver version.
+
+        It:
+
+        - drops ``.devN`` and ``.postN``
+        - converts ``aN``, ``bN`` and ``rcN`` to ``-alpha.N``, ``-beta.N``, ``-rc.N`` respectively
+
+        Args:
+            version: Version to convert
+        Returns
+            Semver compatible version
+        """
+        return re.sub(
+            r"(a|b|rc)(\d+)$",
+            lambda m: f"{PYTHON_TO_SEMVER[m.group(1)]}{m.group(2)}",
+            re.subn(r"\.(dev|post)\d+", "", version)[0],
+        )
+
+    def get_normalized_name(self, extension: ExtensionPackage) -> str:
+        """Normalize extension name.
+
+        Extension have multiple parts, npm package, Python package,...
+        Sub-classes may override this method to ensure the name of
+        an extension from the service provider and the local installed
+        listing is matching.
+
+        Args:
+            extension: The extension metadata
+        Returns:
+            The normalized name
+        """
+        return extension.name
+
+    async def list_extensions(
+        self, query: Optional[str] = None, page: int = 1, per_page: int = 30
+    ) -> Tuple[List[ExtensionPackage], Optional[int]]:
+        """List extensions for a given ``query`` search term.
+
+        This will return the extensions installed (if ``query`` is None) or
+        available if allowed by the listing settings.
+
+        Args:
+            query: [optional] Query search term.
+
+        Returns:
+            The extensions
+            Last page of results
+        """
+        if query not in self._extensions_cache or page not in self._extensions_cache[query].cache:
+            await self.refresh(query, page, per_page)
+
+        # filter using listings settings
+        if self._listings_cache is None and self._listing_fetch is not None:
+            await self._listing_fetch.callback()
+
+        cache = self._extensions_cache[query].cache[page]
+        if cache is None:
+            cache = {}
+        extensions = list(cache.values())
+        if query is not None and self._listings_cache is not None:
+            listing = list(self._listings_cache)
+            extensions = []
+            if self._listings_block_mode:
+                for name, ext in cache.items():
+                    if name not in listing:
+                        extensions.append(replace(ext, allowed=True))
+                    elif ext.installed_version:
+                        self.log.warning(f"Blocked extension '{name}' is installed.")
+                        extensions.append(replace(ext, allowed=False))
+            else:
+                for name, ext in cache.items():
+                    if name in listing:
+                        extensions.append(replace(ext, allowed=True))
+                    elif ext.installed_version:
+                        self.log.warning(f"Not allowed extension '{name}' is installed.")
+                        extensions.append(replace(ext, allowed=False))
+
+        return extensions, self._extensions_cache[query].last_page
+
+    async def refresh(self, query: Optional[str], page: int, per_page: int) -> None:
+        """Refresh the list of extensions."""
+        if query in self._extensions_cache:
+            self._extensions_cache[query].cache[page] = None
+        await self._update_extensions_list(query, page, per_page)
+
+    async def _fetch_listings(self) -> None:
+        """Fetch the listings for the extension manager."""
+        rules = []
+        client = tornado.httpclient.AsyncHTTPClient()
+        if self._listings_block_mode:
+            if len(self.options.blocked_extensions_uris):
+                self.log.info(
+                    f"Fetching blocked extensions from {self.options.blocked_extensions_uris}"
+                )
+                for blocked_extensions_uri in self.options.blocked_extensions_uris:
+                    r = await client.fetch(
+                        blocked_extensions_uri,
+                        **self.options.listings_tornado_options,
+                    )
+                    j = json.loads(r.body)
+                    rules.extend(j.get("blocked_extensions", []))
+        elif len(self.options.allowed_extensions_uris):
+            self.log.info(
+                f"Fetching allowed extensions from { self.options.allowed_extensions_uris}"
+            )
+            for allowed_extensions_uri in self.options.allowed_extensions_uris:
+                r = await client.fetch(
+                    allowed_extensions_uri,
+                    **self.options.listings_tornado_options,
+                )
+                j = json.loads(r.body)
+                rules.extend(j.get("allowed_extensions", []))
+
+        self._listings_cache = {r["name"]: r for r in rules}
+
+    async def _get_installed_extensions(
+        self, get_latest_version=True
+    ) -> Dict[str, ExtensionPackage]:
+        """Get the installed extensions.
+
+        Args:
+            get_latest_version: Whether to fetch the latest extension version or not.
+        Returns:
+            The installed extensions as a mapping {name: metadata}
+        """
+        app_options = self.app_options
+        info = get_app_info(app_options=app_options)
+        build_check_info = _build_check_info(app_options)
+        _ensure_compat_errors(info, app_options)
+        extensions = {}
+
+        # TODO: the three for-loops below can be run concurrently
+        for name, data in info["federated_extensions"].items():
+            status = "ok"
+            pkg_info = data
+            if info["compat_errors"].get(name, None):
+                status = "error"
+
+            normalized_name = self._normalize_name(name)
+            pkg = ExtensionPackage(
+                name=normalized_name,
+                description=pkg_info.get("description", ""),
+                homepage_url=data.get("url", ""),
+                enabled=(name not in info["disabled"]),
+                core=False,
+                latest_version=ExtensionManager.get_semver_version(data["version"]),
+                installed=True,
+                installed_version=ExtensionManager.get_semver_version(data["version"]),
+                status=status,
+                install=data.get("install", {}),
+                pkg_type="prebuilt",
+                companion=self._get_companion(data),
+                author=data.get("author", {}).get("name", data.get("author")),
+                license=data.get("license"),
+                bug_tracker_url=data.get("bugs", {}).get("url"),
+                repository_url=data.get("repository", {}).get("url", data.get("repository")),
+            )
+
+            if get_latest_version:
+                pkg = replace(pkg, latest_version=await self.get_latest_version(pkg.name))
+
+            extensions[normalized_name] = pkg
+
+        for name, data in info["extensions"].items():
+            if name in info["shadowed_exts"]:
+                continue
+            status = "ok"
+
+            if info["compat_errors"].get(name, None):
+                status = "error"
+            else:
+                for packages in build_check_info.values():
+                    if name in packages:
+                        status = "warning"
+
+            normalized_name = self._normalize_name(name)
+            pkg = ExtensionPackage(
+                name=normalized_name,
+                description=data.get("description", ""),
+                homepage_url=data["url"],
+                enabled=(name not in info["disabled"]),
+                core=False,
+                latest_version=ExtensionManager.get_semver_version(data["version"]),
+                installed=True,
+                installed_version=ExtensionManager.get_semver_version(data["version"]),
+                status=status,
+                pkg_type="source",
+                companion=self._get_companion(data),
+                author=data.get("author", {}).get("name", data.get("author")),
+                license=data.get("license"),
+                bug_tracker_url=data.get("bugs", {}).get("url"),
+                repository_url=data.get("repository", {}).get("url", data.get("repository")),
+            )
+            if get_latest_version:
+                pkg = replace(pkg, latest_version=await self.get_latest_version(pkg.name))
+            extensions[normalized_name] = pkg
+
+        for name in build_check_info["uninstall"]:
+            data = self._get_scheduled_uninstall_info(name)
+            if data is not None:
+                normalized_name = self._normalize_name(name)
+                pkg = ExtensionPackage(
+                    name=normalized_name,
+                    description=data.get("description", ""),
+                    homepage_url=data.get("homepage", ""),
+                    installed=False,
+                    enabled=False,
+                    core=False,
+                    latest_version=ExtensionManager.get_semver_version(data["version"]),
+                    installed_version=ExtensionManager.get_semver_version(data["version"]),
+                    status="warning",
+                    pkg_type="prebuilt",
+                    author=data.get("author", {}).get("name", data.get("author")),
+                    license=data.get("license"),
+                    bug_tracker_url=data.get("bugs", {}).get("url"),
+                    repository_url=data.get("repository", {}).get("url", data.get("repository")),
+                )
+                extensions[normalized_name] = pkg
+
+        return extensions
+
+    def _get_companion(self, data: dict) -> Optional[str]:
+        companion = None
+        if "discovery" in data["jupyterlab"]:
+            if "server" in data["jupyterlab"]["discovery"]:
+                companion = "server"
+            elif "kernel" in data["jupyterlab"]["discovery"]:
+                companion = "kernel"
+        return companion
+
+    def _get_scheduled_uninstall_info(self, name) -> Optional[dict]:
+        """Get information about a package that is scheduled for uninstallation"""
+        target = self.app_dir / "staging" / "node_modules" / name / "package.json"
+        if target.exists():
+            with target.open() as fid:
+                return json.load(fid)
+        else:
+            return None
+
+    def _normalize_name(self, name: str) -> str:
+        """Normalize extension name; by default does nothing.
+
+        Args:
+            name: Extension name
+        Returns:
+            Normalized name
+        """
+        return name
+
+    async def _update_extensions_list(
+        self, query: Optional[str] = None, page: int = 1, per_page: int = 30
+    ) -> None:
+        """Update the list of extensions"""
+        last_page = None
+        if query is not None:
+            # Get the available extensions
+            extensions, last_page = await self.list_packages(query, page, per_page)
+        else:
+            # Get the installed extensions
+            extensions = await self._get_installed_extensions()
+
+        if query in self._extensions_cache:
+            self._extensions_cache[query].cache[page] = extensions
+            self._extensions_cache[query].last_page = last_page or 1
+        else:
+            self._extensions_cache[query] = ExtensionsCache({page: extensions}, last_page or 1)
diff --git a/jupyterlab/extensions/pypi.py b/jupyterlab/extensions/pypi.py
new file mode 100644
index 000000000000..ef477440c56b
--- /dev/null
+++ b/jupyterlab/extensions/pypi.py
@@ -0,0 +1,459 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+"""Extension manager using pip as package manager and PyPi.org as packages source."""
+
+import asyncio
+import io
+import json
+import math
+import re
+import sys
+import xmlrpc.client
+from datetime import datetime, timedelta, timezone
+from functools import partial
+from itertools import groupby
+from pathlib import Path
+from subprocess import CalledProcessError, run
+from tarfile import TarFile
+from typing import Any, Callable, Dict, List, Optional, Tuple
+from zipfile import ZipFile
+
+import tornado
+from async_lru import alru_cache
+from traitlets import CFloat, CInt, Unicode, config, observe
+
+from jupyterlab.extensions.manager import (
+    ActionResult,
+    ExtensionManager,
+    ExtensionManagerMetadata,
+    ExtensionPackage,
+)
+
+
+async def _fetch_package_metadata(name: str, latest_version: str, base_url: str) -> dict:
+    http_client = tornado.httpclient.AsyncHTTPClient()
+    response = await http_client.fetch(
+        base_url + f"/{name}/{latest_version}/json",
+        headers={"Content-Type": "application/json"},
+    )
+    data = json.loads(response.body).get("info")
+
+    # Keep minimal information to limit cache size
+    return {
+        k: data.get(k)
+        for k in [
+            "author",
+            "bugtrack_url",
+            "docs_url",
+            "home_page",
+            "license",
+            "package_url",
+            "project_url",
+            "project_urls",
+            "summary",
+        ]
+    }
+
+
+class PyPIExtensionManager(ExtensionManager):
+    """Extension manager using pip as package manager and PyPi.org as packages source."""
+
+    base_url = Unicode("https://pypi.org/pypi", config=True, help="The base URL of PyPI index.")
+
+    cache_timeout = CFloat(
+        5 * 60.0, config=True, help="PyPI extensions list cache timeout in seconds."
+    )
+
+    package_metadata_cache_size = CInt(
+        1500, config=True, help="The cache size for package metadata."
+    )
+
+    rpc_request_throttling = CFloat(
+        1.0,
+        config=True,
+        help="Throttling time in seconds between PyPI requests using the XML-RPC API.",
+    )
+
+    def __init__(
+        self,
+        app_options: Optional[dict] = None,
+        ext_options: Optional[dict] = None,
+        parent: Optional[config.Configurable] = None,
+    ) -> None:
+        super().__init__(app_options, ext_options, parent)
+        # Set configurable cache size to fetch function
+        self._fetch_package_metadata = _fetch_package_metadata
+        self._observe_package_metadata_cache_size({"new": self.package_metadata_cache_size})
+        # Combine XML RPC API and JSON API to reduce throttling by PyPI.org
+        self._http_client = tornado.httpclient.AsyncHTTPClient()
+        self._rpc_client = xmlrpc.client.ServerProxy(self.base_url)
+        self.__last_all_packages_request_time = datetime.now(tz=timezone.utc) - timedelta(
+            seconds=self.cache_timeout * 1.01
+        )
+        self.__all_packages_cache = None
+
+        self.log.debug(f"Extensions list will be fetched from {self.base_url}.")
+
+    @property
+    def metadata(self) -> ExtensionManagerMetadata:
+        """Extension manager metadata."""
+        return ExtensionManagerMetadata("PyPI", True, sys.prefix)
+
+    async def get_latest_version(self, pkg: str) -> Optional[str]:
+        """Return the latest available version for a given extension.
+
+        Args:
+            pkg: The extension to search for
+        Returns:
+            The latest available version
+        """
+        try:
+            http_client = tornado.httpclient.AsyncHTTPClient()
+            response = await http_client.fetch(
+                self.base_url + f"/{pkg}/json",
+                headers={"Content-Type": "application/json"},
+            )
+            data = json.loads(response.body).get("info")
+        except Exception:
+            return None
+        else:
+            return ExtensionManager.get_semver_version(data.get("version"))
+
+    def get_normalized_name(self, extension: ExtensionPackage) -> str:
+        """Normalize extension name.
+
+        Extension have multiple parts, npm package, Python package,...
+        Sub-classes may override this method to ensure the name of
+        an extension from the service provider and the local installed
+        listing is matching.
+
+        Args:
+            extension: The extension metadata
+        Returns:
+            The normalized name
+        """
+        if extension.install is not None:
+            install_metadata = extension.install
+            if install_metadata["packageManager"] == "python":
+                return self._normalize_name(install_metadata["packageName"])
+        return self._normalize_name(extension.name)
+
+    async def __throttleRequest(self, recursive: bool, fn: Callable, *args) -> Any:  # noqa
+        """Throttle XMLRPC API request
+
+        Args:
+            recursive: Whether to call the throttling recursively once or not.
+            fn: API method to call
+            *args: API method arguments
+        Returns:
+            Result of the method
+        Raises:
+            xmlrpc.client.Fault
+        """
+        current_loop = tornado.ioloop.IOLoop.current()
+        try:
+            data = await current_loop.run_in_executor(None, fn, *args)
+        except xmlrpc.client.Fault as err:
+            if err.faultCode == -32500 and err.faultString.startswith(  # noqa PLR2004
+                "HTTPTooManyRequests:"
+            ):
+                delay = 1.01
+                match = re.search(r"Limit may reset in (\d+) seconds.", err.faultString)
+                if match is not None:
+                    delay = int(match.group(1) or "1")
+                self.log.info(
+                    f"HTTPTooManyRequests - Perform next call to PyPI XMLRPC API in {delay}s."
+                )
+                await asyncio.sleep(delay * self.rpc_request_throttling + 0.01)
+                if recursive:
+                    data = await self.__throttleRequest(False, fn, *args)
+                else:
+                    data = await current_loop.run_in_executor(None, fn, *args)
+
+        return data
+
+    @observe("package_metadata_cache_size")
+    def _observe_package_metadata_cache_size(self, change):
+        self._fetch_package_metadata = alru_cache(maxsize=change["new"])(_fetch_package_metadata)
+
+    async def list_packages(
+        self, query: str, page: int, per_page: int
+    ) -> Tuple[Dict[str, ExtensionPackage], Optional[int]]:
+        """List the available extensions.
+
+        Note:
+            This will list the packages based on the classifier
+                Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt
+
+            Then it filters it with the query
+
+            We do not try to check if they are compatible (version wise)
+
+        Args:
+            query: The search extension query
+            page: The result page
+            per_page: The number of results per page
+        Returns:
+            The available extensions in a mapping {name: metadata}
+            The results last page; None if the manager does not support pagination
+        """
+        matches = await self.__get_all_extensions()
+
+        extensions = {}
+
+        counter = -1
+        min_index = (page - 1) * per_page
+        max_index = page * per_page
+        for name, group in groupby(filter(lambda m: query in m[0], matches), lambda e: e[0]):
+            counter += 1
+            if counter < min_index or counter >= max_index:
+                continue
+
+            _, latest_version = list(group)[-1]
+            data = await self._fetch_package_metadata(name, latest_version, self.base_url)
+
+            normalized_name = self._normalize_name(name)
+
+            package_urls = data.get("project_urls") or {}
+
+            source_url = package_urls.get("Source Code")
+            homepage_url = data.get("home_page") or package_urls.get("Homepage")
+            documentation_url = data.get("docs_url") or package_urls.get("Documentation")
+            bug_tracker_url = data.get("bugtrack_url") or package_urls.get("Bug Tracker")
+
+            best_guess_home_url = (
+                homepage_url
+                or data.get("project_url")
+                or data.get("package_url")
+                or documentation_url
+                or source_url
+                or bug_tracker_url
+            )
+
+            extensions[normalized_name] = ExtensionPackage(
+                name=normalized_name,
+                description=data.get("summary"),
+                homepage_url=best_guess_home_url,
+                author=data.get("author"),
+                license=data.get("license"),
+                latest_version=ExtensionManager.get_semver_version(latest_version),
+                pkg_type="prebuilt",
+                bug_tracker_url=bug_tracker_url,
+                documentation_url=documentation_url,
+                package_manager_url=data.get("package_url"),
+                repository_url=source_url,
+            )
+
+        return extensions, math.ceil((counter + 1) / per_page)
+
+    async def __get_all_extensions(self) -> List[Tuple[str, str]]:
+        if self.__all_packages_cache is None or datetime.now(
+            tz=timezone.utc
+        ) > self.__last_all_packages_request_time + timedelta(seconds=self.cache_timeout):
+            self.log.debug("Requesting PyPI.org RPC API for prebuilt JupyterLab extensions.")
+            self.__all_packages_cache = await self.__throttleRequest(
+                True,
+                self._rpc_client.browse,
+                ["Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt"],
+            )
+            self.__last_all_packages_request_time = datetime.now(tz=timezone.utc)
+
+        return self.__all_packages_cache
+
+    async def install(self, name: str, version: Optional[str] = None) -> ActionResult:  # noqa
+        """Install the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            name: The extension name
+            version: The version to install; default None (i.e. the latest possible)
+        Returns:
+            The action result
+        """
+        current_loop = tornado.ioloop.IOLoop.current()
+
+        cmdline = [
+            sys.executable,
+            "-m",
+            "pip",
+            "install",
+            "--no-input",
+            "--quiet",
+            "--progress-bar",
+            "off",
+        ]
+        if version is not None:
+            cmdline.append(f"{name}=={version}")
+        else:
+            cmdline.append(name)
+
+        pkg_action = {}
+        try:
+            tmp_cmd = cmdline.copy()
+            tmp_cmd.insert(-1, "--dry-run")
+            tmp_cmd.insert(-1, "--report")
+            tmp_cmd.insert(-1, "-")
+            result = await current_loop.run_in_executor(
+                None, partial(run, tmp_cmd, capture_output=True, check=True)
+            )
+
+            action_info = json.loads(result.stdout.decode("utf-8"))
+            pkg_action = next(
+                iter(
+                    filter(
+                        lambda p: p.get("metadata", {}).get("name") == name.replace("_", "-"),
+                        action_info.get("install", []),
+                    )
+                )
+            )
+        except CalledProcessError as e:
+            self.log.debug(f"Fail to get installation report: {e.stderr}", exc_info=e)
+        except Exception as err:
+            self.log.debug("Fail to get installation report.", exc_info=err)
+        else:
+            self.log.debug(f"Actions to be executed by pip {json.dumps(action_info)}.")
+
+        self.log.debug(f"Executing '{' '.join(cmdline)}'")
+
+        result = await current_loop.run_in_executor(
+            None, partial(run, cmdline, capture_output=True)
+        )
+
+        self.log.debug(f"return code: {result.returncode}")
+        self.log.debug(f"stdout: {result.stdout.decode('utf-8')}")
+        error = result.stderr.decode("utf-8")
+        if result.returncode == 0:
+            self.log.debug(f"stderr: {error}")
+            # Figure out if the package has server or kernel parts
+            jlab_metadata = None
+            try:
+                download_url: str = pkg_action.get("download_info", {}).get("url")
+                if download_url is not None:
+                    response = await self._http_client.fetch(download_url)
+                    if download_url.endswith(".whl"):
+                        with ZipFile(io.BytesIO(response.body)) as wheel:
+                            for name in filter(
+                                lambda f: Path(f).name == "package.json",
+                                wheel.namelist(),
+                            ):
+                                data = json.loads(wheel.read(name))
+                                jlab_metadata = data.get("jupyterlab")
+                                if jlab_metadata is not None:
+                                    break
+                    elif download_url.endswith("tar.gz"):
+                        with TarFile(io.BytesIO(response.body)) as sdist:
+                            for name in filter(
+                                lambda f: Path(f).name == "package.json",
+                                sdist.getnames(),
+                            ):
+                                data = json.load(sdist.extractfile(sdist.getmember(name)))
+                                jlab_metadata = data.get("jupyterlab")
+                                if jlab_metadata is not None:
+                                    break
+            except Exception as e:
+                self.log.debug("Fail to get package.json.", exc_info=e)
+
+            follow_ups = [
+                "frontend",
+            ]
+            if jlab_metadata is not None:
+                discovery = jlab_metadata.get("discovery", {})
+                if "kernel" in discovery:
+                    follow_ups.append("kernel")
+                if "server" in discovery:
+                    follow_ups.append("server")
+
+            return ActionResult(status="ok", needs_restart=follow_ups)
+        else:
+            self.log.error(f"Failed to installed {name}: code {result.returncode}\n{error}")
+            return ActionResult(status="error", message=error)
+
+    async def uninstall(self, extension: str) -> ActionResult:
+        """Uninstall the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            extension: The extension name
+        Returns:
+            The action result
+        """
+        current_loop = tornado.ioloop.IOLoop.current()
+        cmdline = [
+            sys.executable,
+            "-m",
+            "pip",
+            "uninstall",
+            "--yes",
+            "--no-input",
+            extension,
+        ]
+
+        # Figure out if the package has server or kernel parts
+        jlab_metadata = None
+        try:
+            tmp_cmd = cmdline.copy()
+            tmp_cmd.remove("--yes")
+            result = await current_loop.run_in_executor(
+                None, partial(run, tmp_cmd, capture_output=True)
+            )
+            lines = filter(
+                lambda line: line.endswith("package.json"),
+                map(lambda line: line.strip(), result.stdout.decode("utf-8").splitlines()),  # noqa
+            )
+            for filepath in filter(
+                lambda f: f.name == "package.json",
+                map(Path, lines),
+            ):
+                data = json.loads(filepath.read_bytes())
+                jlab_metadata = data.get("jupyterlab")
+                if jlab_metadata is not None:
+                    break
+        except Exception as e:
+            self.log.debug("Fail to list files to be uninstalled.", exc_info=e)
+
+        self.log.debug(f"Executing '{' '.join(cmdline)}'")
+
+        result = await current_loop.run_in_executor(
+            None, partial(run, cmdline, capture_output=True)
+        )
+
+        self.log.debug(f"return code: {result.returncode}")
+        self.log.debug(f"stdout: {result.stdout.decode('utf-8')}")
+        error = result.stderr.decode("utf-8")
+        if result.returncode == 0:
+            self.log.debug(f"stderr: {error}")
+            follow_ups = [
+                "frontend",
+            ]
+            if jlab_metadata is not None:
+                discovery = jlab_metadata.get("discovery", {})
+                if "kernel" in discovery:
+                    follow_ups.append("kernel")
+                if "server" in discovery:
+                    follow_ups.append("server")
+
+            return ActionResult(status="ok", needs_restart=follow_ups)
+        else:
+            self.log.error(f"Failed to installed {extension}: code {result.returncode}\n{error}")
+            return ActionResult(status="error", message=error)
+
+    def _normalize_name(self, name: str) -> str:
+        """Normalize extension name.
+
+        Remove `@` from npm scope and replace `/` and `_` by `-`.
+
+        Args:
+            name: Extension name
+        Returns:
+            Normalized name
+        """
+        return name.replace("@", "").replace("/", "-").replace("_", "-")
diff --git a/jupyterlab/extensions/readonly.py b/jupyterlab/extensions/readonly.py
new file mode 100644
index 000000000000..1dbdef1db503
--- /dev/null
+++ b/jupyterlab/extensions/readonly.py
@@ -0,0 +1,82 @@
+"""Extension manager without installation capabilities."""
+
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import sys
+from typing import Dict, Optional, Tuple
+
+from jupyterlab_server.translation_utils import translator
+
+from .manager import ActionResult, ExtensionManager, ExtensionManagerMetadata, ExtensionPackage
+
+
+class ReadOnlyExtensionManager(ExtensionManager):
+    """Extension manager without installation capabilities."""
+
+    @property
+    def metadata(self) -> ExtensionManagerMetadata:
+        """Extension manager metadata."""
+        return ExtensionManagerMetadata("read-only", install_path=sys.prefix)
+
+    async def get_latest_version(self, pkg: str) -> Optional[str]:
+        """Return the latest available version for a given extension.
+
+        Args:
+            pkg: The extension to search for
+        Returns:
+            The latest available version
+        """
+        return None
+
+    async def list_packages(
+        self, query: str, page: int, per_page: int
+    ) -> Tuple[Dict[str, ExtensionPackage], Optional[int]]:
+        """List the available extensions.
+
+        Args:
+            query: The search extension query
+            page: The result page
+            per_page: The number of results per page
+        Returns:
+            The available extensions in a mapping {name: metadata}
+            The results last page; None if the manager does not support pagination
+        """
+        return {}, None
+
+    async def install(self, extension: str, version: Optional[str] = None) -> ActionResult:
+        """Install the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            extension: The extension name
+            version: The version to install; default None (i.e. the latest possible)
+        Returns:
+            The action result
+        """
+        trans = translator.load("jupyterlab")
+        return ActionResult(
+            status="error", message=trans.gettext("Extension installation not supported.")
+        )
+
+    async def uninstall(self, extension: str) -> ActionResult:
+        """Uninstall the required extension.
+
+        Note:
+            If the user must be notified with a message (like asking to restart the
+            server), the result should be
+            {"status": "warning", "message": "<explanation for the user>"}
+
+        Args:
+            extension: The extension name
+        Returns:
+            The action result
+        """
+        trans = translator.load("jupyterlab")
+        return ActionResult(
+            status="error", message=trans.gettext("Extension removal not supported.")
+        )
diff --git a/jupyterlab/federated_labextensions.py b/jupyterlab/federated_labextensions.py
index a6935268bd9e..f5caac220e7b 100644
--- a/jupyterlab/federated_labextensions.py
+++ b/jupyterlab/federated_labextensions.py
@@ -1,10 +1,8 @@
-# coding: utf-8
 """Utilities for installing Javascript extensions for the notebook"""
 
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-from __future__ import print_function
 
 import importlib
 import json
@@ -16,9 +14,13 @@
 import sys
 from pathlib import Path
 
-from os.path import basename
+try:
+    from importlib.metadata import PackageNotFoundError, version
+except ImportError:
+    from importlib_metadata import PackageNotFoundError, version
+
+from os.path import basename, normpath
 from os.path import join as pjoin
-from os.path import normpath
 
 from jupyter_core.paths import ENV_JUPYTER_PATH, SYSTEM_JUPYTER_PATH, jupyter_data_dir
 from jupyter_core.utils import ensure_dir_exists
@@ -42,7 +44,7 @@
 # ------------------------------------------------------------------------------
 
 
-def develop_labextension(
+def develop_labextension(  # noqa
     path,
     symlink=True,
     overwrite=False,
@@ -92,9 +94,8 @@ def develop_labextension(
     ensure_dir_exists(labext)
 
     if isinstance(path, (list, tuple)):
-        raise TypeError(
-            "path must be a string pointing to a single extension to install; call this function multiple times to install multiple extensions"
-        )
+        msg = "path must be a string pointing to a single extension to install; call this function multiple times to install multiple extensions"
+        raise TypeError(msg)
 
     if not destination:
         destination = basename(normpath(path))
@@ -115,16 +116,17 @@ def develop_labextension(
         path = os.path.abspath(path)
         if not os.path.exists(full_dest):
             if logger:
-                logger.info("Symlinking: %s -> %s" % (full_dest, path))
+                logger.info(f"Symlinking: {full_dest} -> {path}")
             try:
                 os.symlink(path, full_dest)
             except OSError as e:
                 if platform.platform().startswith("Windows"):
-                    raise OSError(
+                    msg = (
                         "Symlinks can be activated on Windows 10 for Python version 3.8 or higher"
                         " by activating the 'Developer Mode'. That may not be allowed by your administrators.\n"
                         "See https://docs.microsoft.com/en-us/windows/apps/get-started/enable-your-device-for-development"
-                    ) from e
+                    )
+                    raise OSError(msg) from e
                 raise
 
         elif not os.path.islink(full_dest):
@@ -132,7 +134,7 @@ def develop_labextension(
 
     elif os.path.isdir(path):
         path = pjoin(os.path.abspath(path), "")  # end in path separator
-        for parent, dirs, files in os.walk(path):
+        for parent, _, files in os.walk(path):
             dest_dir = pjoin(full_dest, parent[len(path) :])
             if not os.path.exists(dest_dir):
                 if logger:
@@ -172,7 +174,7 @@ def develop_labextension_py(
         src = os.path.join(base_path, labext["src"])
         dest = labext["dest"]
         if logger:
-            logger.info("Installing %s -> %s" % (src, dest))
+            logger.info(f"Installing {src} -> {dest}")
 
         if not os.path.exists(src):
             build_labextension(base_path, logger=logger)
@@ -196,12 +198,9 @@ def build_labextension(
     path, logger=None, development=False, static_url=None, source_map=False, core_path=None
 ):
     """Build a labextension in the given path"""
-    if core_path is None:
-        core_path = osp.join(HERE, "staging")
-    else:
-        core_path = str(Path(core_path).resolve())
+    core_path = osp.join(HERE, "staging") if core_path is None else str(Path(core_path).resolve())
 
-    ext_path = osp.abspath(path)
+    ext_path = str(Path(path).resolve())
 
     if logger:
         logger.info("Building extension in %s" % path)
@@ -216,18 +215,15 @@ def build_labextension(
     if source_map:
         arguments.append("--source-map")
 
-    subprocess.check_call(arguments, cwd=ext_path)
+    subprocess.check_call(arguments, cwd=ext_path)  # noqa S603
 
 
 def watch_labextension(
     path, labextensions_path, logger=None, development=False, source_map=False, core_path=None
 ):
     """Watch a labextension in a given path"""
-    if core_path is None:
-        core_path = osp.join(HERE, "staging")
-    else:
-        core_path = str(Path(core_path).resolve())
-    ext_path = osp.abspath(path)
+    core_path = osp.join(HERE, "staging") if core_path is None else str(Path(core_path).resolve())
+    ext_path = str(Path(path).resolve())
 
     if logger:
         logger.info("Building extension in %s" % path)
@@ -254,7 +250,7 @@ def watch_labextension(
     if source_map:
         arguments.append("--source-map")
 
-    subprocess.check_call(arguments, cwd=ext_path)
+    subprocess.check_call(arguments, cwd=ext_path)  # noqa S603
 
 
 # ------------------------------------------------------------------------------
@@ -269,45 +265,46 @@ def _ensure_builder(ext_path, core_path):
         core_data = json.load(fid)
     with open(osp.join(ext_path, "package.json")) as fid:
         ext_data = json.load(fid)
-    depVersion1 = core_data["devDependencies"]["@jupyterlab/builder"]
-    depVersion2 = ext_data.get("devDependencies", dict()).get("@jupyterlab/builder")
-    depVersion2 = depVersion2 or ext_data.get("dependencies", dict()).get("@jupyterlab/builder")
-    if depVersion2 is None:
+    dep_version1 = core_data["devDependencies"]["@jupyterlab/builder"]
+    dep_version2 = ext_data.get("devDependencies", {}).get("@jupyterlab/builder")
+    dep_version2 = dep_version2 or ext_data.get("dependencies", {}).get("@jupyterlab/builder")
+    if dep_version2 is None:
         raise ValueError(
-            "Extensions require a devDependency on @jupyterlab/builder@%s" % depVersion1
+            "Extensions require a devDependency on @jupyterlab/builder@%s" % dep_version1
         )
 
     # if we have installed from disk (version is a path), assume we know what
     # we are doing and do not check versions.
-    if "/" in depVersion2:
-        with open(osp.join(ext_path, depVersion2, "package.json")) as fid:
-            depVersion2 = json.load(fid).get("version")
+    if "/" in dep_version2:
+        with open(osp.join(ext_path, dep_version2, "package.json")) as fid:
+            dep_version2 = json.load(fid).get("version")
     if not osp.exists(osp.join(ext_path, "node_modules")):
-        subprocess.check_call(["jlpm"], cwd=ext_path)
+        subprocess.check_call(["jlpm"], cwd=ext_path)  # noqa S603 S607
 
     # Find @jupyterlab/builder using node module resolution
     # We cannot use a script because the script path is a shell script on Windows
     target = ext_path
     while not osp.exists(osp.join(target, "node_modules", "@jupyterlab", "builder")):
         if osp.dirname(target) == target:
-            raise ValueError("Could not find @jupyterlab/builder")
+            msg = "Could not find @jupyterlab/builder"
+            raise ValueError(msg)
         target = osp.dirname(target)
 
-    overlap = _test_overlap(depVersion1, depVersion2, drop_prerelease1=True, drop_prerelease2=True)
+    overlap = _test_overlap(
+        dep_version1, dep_version2, drop_prerelease1=True, drop_prerelease2=True
+    )
     if not overlap:
         with open(
             osp.join(target, "node_modules", "@jupyterlab", "builder", "package.json")
         ) as fid:
-            depVersion2 = json.load(fid).get("version")
+            dep_version2 = json.load(fid).get("version")
         overlap = _test_overlap(
-            depVersion1, depVersion2, drop_prerelease1=True, drop_prerelease2=True
+            dep_version1, dep_version2, drop_prerelease1=True, drop_prerelease2=True
         )
 
     if not overlap:
-        raise ValueError(
-            "Extensions require a devDependency on @jupyterlab/builder@%s, you have a dependency on %s"
-            % (depVersion1, depVersion2)
-        )
+        msg = f"Extensions require a devDependency on @jupyterlab/builder@{dep_version1}, you have a dependency on {dep_version2}"
+        raise ValueError(msg)
 
     return osp.join(
         target, "node_modules", "@jupyterlab", "builder", "lib", "build-labextension.js"
@@ -331,11 +328,11 @@ def _should_copy(src, dest, logger=None):
     """
     if not os.path.exists(dest):
         return True
-    if os.stat(src).st_mtime - os.stat(dest).st_mtime > 1e-6:
+    if os.stat(src).st_mtime - os.stat(dest).st_mtime > 1e-6:  # noqa
         # we add a fudge factor to work around a bug in python 2.x
         # that was fixed in python 3.x: https://bugs.python.org/issue12904
         if logger:
-            logger.warn("Out of date: %s" % dest)
+            logger.warning("Out of date: %s" % dest)
         return True
     if logger:
         logger.info("Up to date: %s" % dest)
@@ -357,7 +354,7 @@ def _maybe_copy(src, dest, logger=None):
     """
     if _should_copy(src, dest, logger=logger):
         if logger:
-            logger.info("Copying: %s -> %s" % (src, dest))
+            logger.info(f"Copying: {src} -> {dest}")
         shutil.copy2(src, dest)
 
 
@@ -382,13 +379,12 @@ def _get_labextension_dir(user=False, sys_prefix=False, prefix=None, labextensio
         ("labextensions_dir", labextensions_dir),
         ("sys_prefix", sys_prefix),
     ]
-    conflicting_set = ["{}={!r}".format(n, v) for n, v in conflicting if v]
+    conflicting_set = [f"{n}={v!r}" for n, v in conflicting if v]
     if len(conflicting_set) > 1:
-        raise ArgumentConflict(
-            "cannot specify more than one of user, sys_prefix, prefix, or labextensions_dir, but got: {}".format(
-                ", ".join(conflicting_set)
-            )
+        msg = "cannot specify more than one of user, sys_prefix, prefix, or labextensions_dir, but got: {}".format(
+            ", ".join(conflicting_set)
         )
+        raise ArgumentConflict(msg)
     if user:
         labext = pjoin(jupyter_data_dir(), "labextensions")
     elif sys_prefix:
@@ -402,7 +398,7 @@ def _get_labextension_dir(user=False, sys_prefix=False, prefix=None, labextensio
     return labext
 
 
-def _get_labextension_metadata(module):
+def _get_labextension_metadata(module):  # noqa
     """Get the list of labextension paths associated with a Python module.
 
     Returns a tuple of (the module path,             [{
@@ -419,7 +415,8 @@ def _get_labextension_metadata(module):
     """
     mod_path = osp.abspath(module)
     if not osp.exists(mod_path):
-        raise FileNotFoundError("The path `{}` does not exist.".format(mod_path))
+        msg = f"The path `{mod_path}` does not exist."
+        raise FileNotFoundError(msg)
 
     errors = []
 
@@ -431,7 +428,7 @@ def _get_labextension_metadata(module):
     except Exception as exc:
         errors.append(exc)
 
-     # Try to get the package name
+    # Try to get the package name
     package = None
 
     # Try getting the package name from pyproject.toml
@@ -440,27 +437,28 @@ def _get_labextension_metadata(module):
             data = load(fid)
         package = data.get("project", {}).get("name")
 
-    # Try getting the package name from setup.py invocation.
+    # Try getting the package name from setup.py
     if not package:
         try:
             package = (
-                subprocess.check_output([sys.executable, "setup.py", "--name"], cwd=mod_path)
+                subprocess.check_output(
+                    [sys.executable, "setup.py", "--name"], cwd=mod_path  # noqa S603
+                )
                 .decode("utf8")
                 .strip()
             )
         except subprocess.CalledProcessError:
-            raise FileNotFoundError(
-                "The Python package `{}` is not a valid package, "
-                "it is missing the `setup.py` file.".format(module)
+            msg = (
+                f"The Python package `{module}` is not a valid package, "
+                "it is missing the `setup.py` file."
             )
+            raise FileNotFoundError(msg) from None
 
     # Make sure the package is installed
-    import pkg_resources
-
     try:
-        pkg_resources.get_distribution(package)
-    except pkg_resources.DistributionNotFound:
-        subprocess.check_call([sys.executable, "-m", "pip", "install", "-e", mod_path])
+        version(package)
+    except PackageNotFoundError:
+        subprocess.check_call([sys.executable, "-m", "pip", "install", "-e", mod_path])  # noqa S603
         sys.path.insert(0, mod_path)
 
     from setuptools import find_namespace_packages, find_packages
@@ -481,6 +479,5 @@ def _get_labextension_metadata(module):
         except Exception as exc:
             errors.append(exc)
 
-    raise ModuleNotFoundError(
-        "There is no labextension at {}. Errors encountered: {}".format(module, errors)
-    )
+    msg = f"There is no labextension at {module}. Errors encountered: {errors}"
+    raise ModuleNotFoundError(msg)
diff --git a/jupyterlab/galata/__init__.py b/jupyterlab/galata/__init__.py
new file mode 100644
index 000000000000..480bfaf9d030
--- /dev/null
+++ b/jupyterlab/galata/__init__.py
@@ -0,0 +1,40 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import getpass
+import os
+from pathlib import Path
+from tempfile import mkdtemp
+
+
+def configure_jupyter_server(c):
+    """Helper to configure the Jupyter Server for integration testing
+    with Galata.
+
+    By default the tests will be executed in the OS temporary folder. You
+    can override that folder by setting the environment variable ``JUPYTERLAB_GALATA_ROOT_DIR``.
+
+    .. warning::
+
+        Never use this configuration in production as it will remove all security protections.
+    """
+    # Test if we are running in a docker
+    if getpass.getuser() == "jovyan":
+        c.ServerApp.ip = "0.0.0.0"  # noqa S104
+
+    c.ServerApp.port = 8888
+    c.ServerApp.port_retries = 0
+    c.ServerApp.open_browser = False
+    # Add test helpers extension shipped with JupyterLab.
+    # You can replace the following line by the two following one
+    #   import jupyterlab
+    #   c.LabServerApp.extra_labextensions_path = str(Path(jupyterlab.__file__).parent / "galata")
+    c.LabServerApp.extra_labextensions_path = str(Path(__file__).parent)
+
+    c.ServerApp.root_dir = os.environ.get(
+        "JUPYTERLAB_GALATA_ROOT_DIR", mkdtemp(prefix="galata-test-")
+    )
+    c.ServerApp.token = ""
+    c.ServerApp.password = ""
+    c.ServerApp.disable_check_xsrf = True
+    c.LabApp.expose_app_in_browser = True
diff --git a/jupyterlab/handlers/__init__.py b/jupyterlab/handlers/__init__.py
index e69de29bb2d1..c1463008fe10 100644
--- a/jupyterlab/handlers/__init__.py
+++ b/jupyterlab/handlers/__init__.py
@@ -0,0 +1,2 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
diff --git a/jupyterlab/handlers/announcements.py b/jupyterlab/handlers/announcements.py
index bd72e8af7588..e94d68cefc5e 100644
--- a/jupyterlab/handlers/announcements.py
+++ b/jupyterlab/handlers/announcements.py
@@ -6,9 +6,9 @@
 import abc
 import hashlib
 import json
-import xml.etree.ElementTree as ET
+import xml.etree.ElementTree as ET  # noqa
 from dataclasses import asdict, dataclass, field
-from datetime import datetime
+from datetime import datetime, timezone
 from typing import Awaitable, Optional, Tuple, Union
 
 from jupyter_server.base.handlers import APIHandler
@@ -16,7 +16,7 @@
 from packaging.version import parse
 from tornado import httpclient, web
 
-from .._version import __version__
+from jupyterlab._version import __version__
 
 ISO8601_FORMAT = "%Y-%m-%dT%H:%M:%S%z"
 JUPYTERLAB_LAST_RELEASE_URL = "https://pypi.org/pypi/jupyterlab/json"
@@ -40,10 +40,10 @@ class Notification:
         options: Notification options
     """
 
-    createdAt: float
+    createdAt: float  # noqa
     message: str
-    modifiedAt: float
-    type: str = "default"
+    modifiedAt: float  # noqa
+    type: str = "default"  # noqa
     link: Tuple[str, str] = field(default_factory=tuple)
     options: dict = field(default_factory=dict)
 
@@ -71,7 +71,8 @@ async def __call__(self) -> Awaitable[Union[None, str, Tuple[str, Tuple[str, str
             or the notification message
             or the notification message and a tuple(label, URL link) for the user to get more information
         """
-        raise NotImplementedError("CheckForUpdateABC.__call__ is not implemented")
+        msg = "CheckForUpdateABC.__call__ is not implemented"
+        raise NotImplementedError(msg)
 
 
 class CheckForUpdate(CheckForUpdateABC):
@@ -169,15 +170,15 @@ async def get(self):
         out = await self.update_checker()
         if out:
             message, link = (out, ()) if isinstance(out, str) else out
-            now = datetime.now().timestamp() * 1000.0
-            hash = hashlib.sha1(message.encode()).hexdigest()
+            now = datetime.now(tz=timezone.utc).timestamp() * 1000.0
+            hash_ = hashlib.sha1(message.encode()).hexdigest()  # noqa: S324
             notification = Notification(
                 message=message,
                 createdAt=now,
                 modifiedAt=now,
                 type="info",
                 link=link,
-                options={"data": {"id": hash, "tags": ["update"]}},
+                options={"data": {"id": hash_, "tags": ["update"]}},
             )
 
         self.set_status(200)
@@ -226,7 +227,7 @@ async def get(self):
                     self.news_url,
                     headers={"Content-Type": "application/atom+xml"},
                 )
-                tree = ET.fromstring(response.body)
+                tree = ET.fromstring(response.body)  # noqa S314
 
                 def build_entry(node):
                     def get_xml_text(attr: str, default: Optional[str] = None) -> str:
diff --git a/jupyterlab/handlers/build_handler.py b/jupyterlab/handlers/build_handler.py
index 2812da2eccec..52a2f8da7e5f 100644
--- a/jupyterlab/handlers/build_handler.py
+++ b/jupyterlab/handlers/build_handler.py
@@ -11,11 +11,10 @@
 from tornado import gen, web
 from tornado.concurrent import run_on_executor
 
-from ..commands import AppOptions, _ensure_options, build, build_check, clean
-from ..coreconfig import CoreConfig
+from jupyterlab.commands import AppOptions, _ensure_options, build, build_check, clean
 
 
-class Builder(object):
+class Builder:
     building = False
     executor = ThreadPoolExecutor(max_workers=5)
     canceled = False
@@ -34,9 +33,9 @@ def __init__(self, core_mode, app_options=None):
     @gen.coroutine
     def get_status(self):
         if self.core_mode:
-            raise gen.Return(dict(status="stable", message=""))
+            raise gen.Return({"status": "stable", "message": ""})
         if self.building:
-            raise gen.Return(dict(status="building", message=""))
+            raise gen.Return({"status": "building", "message": ""})
 
         try:
             messages = yield self._run_build_check(
@@ -44,21 +43,22 @@ def get_status(self):
             )
             status = "needed" if messages else "stable"
             if messages:
-                self.log.warn("Build recommended")
-                [self.log.warn(m) for m in messages]
+                self.log.warning("Build recommended")
+                [self.log.warning(m) for m in messages]
             else:
                 self.log.info("Build is up to date")
-        except ValueError as e:
-            self.log.warn("Could not determine jupyterlab build status without nodejs")
+        except ValueError:
+            self.log.warning("Could not determine jupyterlab build status without nodejs")
             status = "stable"
             messages = []
 
-        raise gen.Return(dict(status=status, message="\n".join(messages)))
+        raise gen.Return({"status": status, "message": "\n".join(messages)})
 
     @gen.coroutine
     def build(self):
         if self._canceling:
-            raise ValueError("Cancel in progress")
+            msg = "Cancel in progress"
+            raise ValueError(msg)
         if not self.building:
             self.canceled = False
             self._future = future = gen.Future()
@@ -84,7 +84,8 @@ def build(self):
     @gen.coroutine
     def cancel(self):
         if not self.building:
-            raise ValueError("No current build")
+            msg = "No current build"
+            raise ValueError(msg)
         self._canceling = True
         yield self._future
         self._canceling = False
@@ -112,17 +113,17 @@ def _run_build(self, app_dir, logger, kill_event, core_config, labextensions_pat
         )
         try:
             return build(app_options=app_options)
-        except Exception as e:
+        except Exception:
             if self._kill_event.is_set():
                 return
-            self.log.warn("Build failed, running a clean and rebuild")
+            self.log.warning("Build failed, running a clean and rebuild")
             clean(app_options=app_options)
             return build(app_options=app_options)
 
 
 class BuildHandler(ExtensionHandlerMixin, APIHandler):
     def initialize(self, builder=None, name=None):
-        super(BuildHandler, self).initialize(name=name)
+        super().initialize(name=name)
         self.builder = builder
 
     @web.authenticated
@@ -138,7 +139,7 @@ def delete(self):
         try:
             yield self.builder.cancel()
         except Exception as e:
-            raise web.HTTPError(500, str(e))
+            raise web.HTTPError(500, str(e)) from None
         self.set_status(204)
 
     @web.authenticated
@@ -148,7 +149,7 @@ def post(self):
         try:
             yield self.builder.build()
         except Exception as e:
-            raise web.HTTPError(500, str(e))
+            raise web.HTTPError(500, str(e)) from None
 
         if self.builder.canceled:
             raise web.HTTPError(400, "Build canceled")
diff --git a/jupyterlab/handlers/error_handler.py b/jupyterlab/handlers/error_handler.py
index 43f1dc3e722b..f2d936ba2bc9 100644
--- a/jupyterlab/handlers/error_handler.py
+++ b/jupyterlab/handlers/error_handler.py
@@ -1,11 +1,10 @@
-# coding: utf-8
 """An error handler for JupyterLab."""
 
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
+from jupyter_server.base.handlers import JupyterHandler
 from jupyter_server.extension.handler import ExtensionHandlerMixin
-from jupyterlab_server.server import JupyterHandler
 from tornado import web
 
 TEMPLATE = """
@@ -24,7 +23,7 @@
 
 class ErrorHandler(ExtensionHandlerMixin, JupyterHandler):
     def initialize(self, messages=None, name=None):
-        super(ErrorHandler, self).initialize(name=name)
+        super().initialize(name=name)
         self.messages = messages
 
     @web.authenticated
diff --git a/jupyterlab/handlers/extension_manager_handler.py b/jupyterlab/handlers/extension_manager_handler.py
index 0ee37ddef494..b4e1977f1947 100644
--- a/jupyterlab/handlers/extension_manager_handler.py
+++ b/jupyterlab/handlers/extension_manager_handler.py
@@ -3,322 +3,137 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
+import dataclasses
 import json
-import os
-import re
-from concurrent.futures import ThreadPoolExecutor
+from urllib.parse import urlencode, urlunparse
 
 from jupyter_server.base.handlers import APIHandler
-from jupyter_server.extension.handler import ExtensionHandlerMixin
-from tornado import gen, web
+from tornado import web
 
-from ..commands import (
-    AppOptions,
-    _AppHandler,
-    _ensure_options,
-    disable_extension,
-    enable_extension,
-    get_app_info,
-    get_latest_compatible_package_versions,
-    install_extension,
-    read_package,
-    uninstall_extension,
-)
+from jupyterlab.extensions.manager import ExtensionManager
 
 
-def _make_extension_entry(
-    name,
-    description,
-    url,
-    enabled,
-    core,
-    latest_version,
-    installed_version,
-    status,
-    pkg_type,
-    installed=None,
-    install=None,
-):
-    """Create an extension entry that can be sent to the client"""
-    ret = dict(
-        name=name,
-        description=description,
-        url=url,
-        enabled=enabled,
-        core=core,
-        latest_version=latest_version,
-        installed_version=installed_version,
-        status=status,
-        pkg_type=pkg_type,
-    )
-    if installed is not None:
-        ret["installed"] = installed
-    if install is not None:
-        ret["install"] = install
-    return ret
-
-
-def _ensure_compat_errors(info, app_options):
-    """Ensure that the app info has compat_errors field"""
-    handler = _AppHandler(app_options)
-    info["compat_errors"] = handler._get_extension_compat()
-
-
-_message_map = {
-    "install": re.compile(r"(?P<name>.*) needs to be included in build"),
-    "uninstall": re.compile(r"(?P<name>.*) needs to be removed from build"),
-    "update": re.compile(r"(?P<name>.*) changed from (?P<oldver>.*) to (?P<newver>.*)"),
-}
-
-
-def _build_check_info(app_options):
-    """Get info about packages scheduled for (un)install/update"""
-    handler = _AppHandler(app_options)
-    messages = handler.build_check(fast=True)
-    # Decode the messages into a dict:
-    status = {"install": [], "uninstall": [], "update": []}
-    for msg in messages:
-        for key, pattern in _message_map.items():
-            match = pattern.match(msg)
-            if match:
-                status[key].append(match.group("name"))
-    return status
-
-
-class ExtensionManager(object):
-    executor = ThreadPoolExecutor(max_workers=1)
-
-    def __init__(self, app_options=None):
-        app_options = _ensure_options(app_options)
-        self.log = app_options.logger
-        self.app_dir = app_options.app_dir
-        self.core_config = app_options.core_config
-        self.app_options = app_options
-        self._outdated = None
-        # To start fetching data on outdated extensions immediately, uncomment:
-        # IOLoop.current().spawn_callback(self._get_outdated)
-
-    @gen.coroutine
-    def list_extensions(self):
-        """Handle a request for all installed extensions"""
-        app_options = self.app_options
-        info = get_app_info(app_options=app_options)
-        build_check_info = _build_check_info(app_options)
-        _ensure_compat_errors(info, app_options)
-        extensions = []
+class ExtensionHandler(APIHandler):
+    def initialize(self, manager: ExtensionManager):
+        super().initialize()
+        self.manager = manager
 
-        # TODO: the three for-loops below can be run concurrently
-        for name, data in info["federated_extensions"].items():
-            status = "ok"
-            pkg_info = data  # yield self._get_pkg_info(name, data)
-            if info["compat_errors"].get(name, None):
-                status = "error"
-            extensions.append(
-                _make_extension_entry(
-                    name=name,
-                    description=pkg_info.get("description", ""),
-                    url=data.get("url", ""),
-                    enabled=(name not in info["disabled"]),
-                    core=False,
-                    # Use wanted version to ensure we limit ourselves
-                    # within semver restrictions
-                    latest_version=data["version"],
-                    installed_version=data["version"],
-                    status=status,
-                    install=data.get("install", {}),
-                    pkg_type="prebuilt",
+    @web.authenticated
+    async def get(self):
+        """GET query returns info on extensions
+
+        Query arguments:
+            refresh: [optional] Force refreshing the list of extensions - ["0", "1"]; default 0
+            query: [optional] Query to search for extensions - default None (i.e. returns installed extensions)
+            page: [optional] Result page - default 1 (min. 1)
+            per_page: [optional] Number of results per page - default 30 (max. 100)
+        """
+        query = self.get_argument("query", None)
+        page = max(1, int(self.get_argument("page", "1")))
+        per_page = min(100, int(self.get_argument("per_page", "30")))
+        if self.get_argument("refresh", "0") == "1":
+            await self.manager.refresh(query, page, per_page)
+
+        extensions, last_page = await self.manager.list_extensions(query, page, per_page)
+
+        self.set_status(200)
+        if last_page is not None:
+            links = []
+            query_args = {"page": last_page, "per_page": per_page}
+            if query is not None:
+                query_args["query"] = query
+            last = urlunparse(
+                (
+                    self.request.protocol,
+                    self.request.host,
+                    self.request.path,
+                    "",
+                    urlencode(query_args, doseq=True),
+                    "",
                 )
             )
-
-        for name, data in info["extensions"].items():
-            if name in info["shadowed_exts"]:
-                continue
-            status = "ok"
-            pkg_info = yield self._get_pkg_info(name, data)
-            if info["compat_errors"].get(name, None):
-                status = "error"
-            else:
-                for packages in build_check_info.values():
-                    if name in packages:
-                        status = "warning"
-            extensions.append(
-                _make_extension_entry(
-                    name=name,
-                    description=pkg_info.get("description", ""),
-                    url=data["url"],
-                    enabled=(name not in info["disabled"]),
-                    core=False,
-                    # Use wanted version to ensure we limit ourselves
-                    # within semver restrictions
-                    latest_version=pkg_info["latest_version"],
-                    installed_version=data["version"],
-                    status=status,
-                    pkg_type="source",
+            links.append(f'<{last}>; rel="last"')
+            if page > 1:
+                query_args["page"] = max(1, page - 1)
+                prev = urlunparse(
+                    (
+                        self.request.protocol,
+                        self.request.host,
+                        self.request.path,
+                        "",
+                        urlencode(query_args, doseq=True),
+                        "",
+                    )
                 )
-            )
-        for name in build_check_info["uninstall"]:
-            data = yield self._get_scheduled_uninstall_info(name)
-            if data is not None:
-                extensions.append(
-                    _make_extension_entry(
-                        name=name,
-                        description=data.get("description", ""),
-                        url=data.get("homepage", ""),
-                        installed=False,
-                        enabled=False,
-                        core=False,
-                        latest_version=data["version"],
-                        installed_version=data["version"],
-                        status="warning",
-                        pkg_type="prebuilt",
+                links.append(f'<{prev}>; rel="prev"')
+            if page < last_page:
+                query_args["page"] = min(page + 1, last_page)
+                next_ = urlunparse(
+                    (
+                        self.request.protocol,
+                        self.request.host,
+                        self.request.path,
+                        "",
+                        urlencode(query_args, doseq=True),
+                        "",
                     )
                 )
-        raise gen.Return(extensions)
-
-    @gen.coroutine
-    def install(self, extension):
-        """Handle an install/update request"""
-        try:
-            install_extension(extension, app_options=self.app_options)
-        except ValueError as e:
-            raise gen.Return(dict(status="error", message=str(e)))
-        raise gen.Return(
-            dict(
-                status="ok",
-            )
-        )
-
-    @gen.coroutine
-    def uninstall(self, extension):
-        """Handle an uninstall request"""
-        did_uninstall = uninstall_extension(extension, app_options=self.app_options)
-        raise gen.Return(
-            dict(
-                status="ok" if did_uninstall else "error",
-            )
-        )
-
-    @gen.coroutine
-    def enable(self, extension):
-        """Handle an enable request"""
-        enable_extension(extension, app_options=self.app_options)
-        raise gen.Return(
-            dict(
-                status="ok",
-            )
-        )
-
-    @gen.coroutine
-    def disable(self, extension):
-        """Handle a disable request"""
-        disable_extension(extension, app_options=self.app_options)
-        raise gen.Return(
-            dict(
-                status="ok",
+                links.append(f'<{next_}>; rel="next"')
+            query_args["page"] = 1
+            first = urlunparse(
+                (
+                    self.request.protocol,
+                    self.request.host,
+                    self.request.path,
+                    "",
+                    urlencode(query_args, doseq=True),
+                    "",
+                )
             )
-        )
-
-    @gen.coroutine
-    def _get_pkg_info(self, name, data):
-        """Get information about a package"""
-        info = read_package(data["path"])
-
-        # Get latest version that is compatible with current lab:
-        outdated = yield self._get_outdated()
-        if outdated and name in outdated:
-            info["latest_version"] = outdated[name]
-        else:
-            # Fallback to indicating that current is latest
-            info["latest_version"] = info["version"]
-
-        raise gen.Return(info)
-
-    def _get_outdated(self):
-        """Get a Future to information from `npm/yarn outdated`.
-
-        This will cache the results. To refresh the cache, set
-        self._outdated to None before calling. To bypass the cache,
-        call self._load_outdated directly.
-        """
-        # Ensure self._outdated is a Future for data on outdated extensions
-        if self._outdated is None:
-            self._outdated = self._load_outdated()
-        # Return the Future
-        return self._outdated
-
-    def refresh_outdated(self):
-        self._outdated = self._load_outdated()
-        return self._outdated
-
-    @gen.coroutine
-    def _load_outdated(self):
-        """Get the latest compatible version"""
-        info = get_app_info(app_options=self.app_options)
-        names = tuple(info["extensions"].keys())
-        data = yield self.executor.submit(
-            get_latest_compatible_package_versions, names, app_options=self.app_options
-        )
-        raise gen.Return(data)
-
-    @gen.coroutine
-    def _get_scheduled_uninstall_info(self, name):
-        """Get information about a package that is scheduled for uninstallation"""
-        target = os.path.join(self.app_dir, "staging", "node_modules", name, "package.json")
-        if os.path.exists(target):
-            with open(target) as fid:
-                raise gen.Return(json.load(fid))
-        else:
-            raise gen.Return(None)
+            links.append(f'<{first}>; rel="first"')
+            self.set_header("Link", ", ".join(links))
 
-
-class ExtensionHandler(ExtensionHandlerMixin, APIHandler):
-    def initialize(self, manager=None, name=None):
-        super(ExtensionHandler, self).initialize(name=name)
-        self.manager = manager
+        self.finish(json.dumps(list(map(dataclasses.asdict, extensions))))
 
     @web.authenticated
-    @gen.coroutine
-    def get(self):
-        """GET query returns info on all installed extensions"""
-        if self.get_argument("refresh", False) == "1":
-            yield self.manager.refresh_outdated()
-        extensions = yield self.manager.list_extensions()
-        self.finish(json.dumps(extensions))
-
-    @web.authenticated
-    @gen.coroutine
-    def post(self):
-        """POST query performs an action on a specific extension"""
+    async def post(self):
+        """POST query performs an action on a specific extension
+
+        Body arguments:
+            {
+                "cmd": Action to perform - ["install", "uninstall", "enable", "disable"]
+                "extension_name": Extension name
+                "extension_version": [optional] Extension version (used only for install action)
+            }
+        """
         data = self.get_json_body()
         cmd = data["cmd"]
         name = data["extension_name"]
+        version = data.get("extension_version")
         if cmd not in ("install", "uninstall", "enable", "disable") or not name:
             raise web.HTTPError(
-                422, "Could not process instruction %r with extension name %r" % (cmd, name)
+                422,
+                f"Could not process instruction {cmd!r} with extension name {name!r}",
             )
 
-        # TODO: Can we trust extension_name? Does it need sanitation?
-        #       It comes from an authenticated session, but its name is
-        #       ultimately from the NPM repository.
         ret_value = None
         try:
             if cmd == "install":
-                ret_value = yield self.manager.install(name)
+                ret_value = await self.manager.install(name, version)
             elif cmd == "uninstall":
-                ret_value = yield self.manager.uninstall(name)
+                ret_value = await self.manager.uninstall(name)
             elif cmd == "enable":
-                ret_value = yield self.manager.enable(name)
+                ret_value = await self.manager.enable(name)
             elif cmd == "disable":
-                ret_value = yield self.manager.disable(name)
-        except gen.Return as e:
-            ret_value = e.value
+                ret_value = await self.manager.disable(name)
         except Exception as e:
-            raise web.HTTPError(500, str(e))
+            raise web.HTTPError(500, str(e)) from e
 
-        if ret_value is None:
-            self.set_status(200)
+        if ret_value.status == "error":
+            self.set_status(500)
         else:
-            self.finish(json.dumps(ret_value))
+            self.set_status(201)
+        self.finish(json.dumps(dataclasses.asdict(ret_value)))
 
 
 # The path for lab extensions handler.
diff --git a/jupyterlab/jlpmapp.py b/jupyterlab/jlpmapp.py
index 8617c5be0484..425ce2dde51e 100644
--- a/jupyterlab/jlpmapp.py
+++ b/jupyterlab/jlpmapp.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """A Jupyter-aware wrapper for the yarn package manager"""
 
 import os
@@ -34,11 +33,11 @@ def execvp(cmd, argv):
         p.wait()
         sys.exit(p.returncode)
     else:
-        os.execvp(cmd, argv)
+        os.execvp(cmd, argv)  # noqa S606
 
 
 def main(argv=None):
     """Run node and return the result."""
     # Make sure node is available.
     argv = argv or sys.argv[1:]
-    execvp("node", ["node", YARN_PATH] + argv)
+    execvp("node", ["node", YARN_PATH, *argv])
diff --git a/jupyterlab/labapp.py b/jupyterlab/labapp.py
index 2242d17ed8c3..62a17f31c924 100644
--- a/jupyterlab/labapp.py
+++ b/jupyterlab/labapp.py
@@ -1,13 +1,12 @@
-# coding: utf-8
 """A tornado based Jupyter lab server."""
 
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
+import dataclasses
 import json
 import os
 import sys
-from os.path import join as pjoin
 
 from jupyter_core.application import JupyterApp, NoStart, base_aliases, base_flags
 from jupyter_server._version import version_info as jpserver_version_info
@@ -20,7 +19,7 @@
     WorkspaceImportApp,
     WorkspaceListApp,
 )
-from nbclassic.shim import NBClassicConfigShimMixin
+from notebook_shim.shim import NotebookConfigShimMixin
 from traitlets import Bool, Instance, Type, Unicode, default
 
 from ._version import __version__
@@ -43,6 +42,8 @@
 )
 from .coreconfig import CoreConfig
 from .debuglog import DebugLogFileMixin
+from .extensions import MANAGERS as EXT_MANAGERS
+from .extensions.readonly import ReadOnlyExtensionManager
 from .handlers.announcements import (
     CheckForUpdate,
     CheckForUpdateABC,
@@ -53,11 +54,7 @@
 )
 from .handlers.build_handler import Builder, BuildHandler, build_path
 from .handlers.error_handler import ErrorHandler
-from .handlers.extension_manager_handler import (
-    ExtensionHandler,
-    ExtensionManager,
-    extensions_handler_path,
-)
+from .handlers.extension_manager_handler import ExtensionHandler, extensions_handler_path
 
 DEV_NOTE = """You're running JupyterLab from source.
 If you're working on the TypeScript sources of JupyterLab, try running
@@ -84,7 +81,10 @@
 
 build_flags = dict(base_flags)
 
-build_flags["dev-build"] = ({"LabBuildApp": {"dev_build": True}}, "Build in development mode.")
+build_flags["dev-build"] = (
+    {"LabBuildApp": {"dev_build": True}},
+    "Build in development mode.",
+)
 build_flags["no-minimize"] = (
     {"LabBuildApp": {"minimize": False}},
     "Do not minimize a production build.",
@@ -98,9 +98,9 @@
 version = __version__
 app_version = get_app_version()
 if version != app_version:
-    version = "%s (dev), %s (app)" % (__version__, app_version)
+    version = f"{__version__} (dev), {app_version} (app)"
 
-buildFailureMsg = """Build failed.
+build_failure_msg = """Build failed.
 Troubleshooting: If the build failed due to an out-of-memory error, you
 may be able to fix it by disabling the `dev_build` and/or `minimize` options.
 
@@ -167,7 +167,9 @@ class LabBuildApp(JupyterApp, DebugLogFileMixin):
     )
 
     minimize = Bool(
-        True, config=True, help="Whether to minimize a production build (defaults to True)."
+        True,
+        config=True,
+        help="Whether to minimize a production build (defaults to True).",
     )
 
     pre_clean = Bool(
@@ -200,7 +202,7 @@ def start(self):
                     minimize=self.minimize,
                 )
             except Exception as e:
-                print(buildFailureMsg)
+                self.log.error(build_failure_msg)
                 raise e
 
 
@@ -214,8 +216,14 @@ def start(self):
     {"LabCleanApp": {"extensions": True}},
     "Also delete <app-dir>/extensions.\n%s" % ext_warn_msg,
 )
-clean_flags["settings"] = ({"LabCleanApp": {"settings": True}}, "Also delete <app-dir>/settings")
-clean_flags["static"] = ({"LabCleanApp": {"static": True}}, "Also delete <app-dir>/static")
+clean_flags["settings"] = (
+    {"LabCleanApp": {"settings": True}},
+    "Also delete <app-dir>/settings",
+)
+clean_flags["static"] = (
+    {"LabCleanApp": {"static": True}},
+    "Also delete <app-dir>/static",
+)
 clean_flags["all"] = (
     {"LabCleanApp": {"all": True}},
     "Delete the entire contents of the app directory.\n%s" % ext_warn_msg,
@@ -227,7 +235,7 @@ class LabCleanAppOptions(AppOptions):
     settings = Bool(False)
     staging = Bool(True)
     static = Bool(False)
-    all = Bool(False)
+    all = Bool(False)  # noqa
 
 
 class LabCleanApp(JupyterApp):
@@ -255,7 +263,7 @@ class LabCleanApp(JupyterApp):
 
     static = Bool(False, config=True, help="Also delete <app-dir>/static")
 
-    all = Bool(
+    all = Bool(  # noqa
         False,
         config=True,
         help="Delete the entire contents of the app directory.\n%s" % ext_warn_msg,
@@ -327,7 +335,7 @@ class LabWorkspaceApp(JupyterApp):
     There are three sub-commands for export, import or listing of workspaces. This app
         should not otherwise do any work.
     """
-    subcommands = dict()
+    subcommands = {}
     subcommands["export"] = (
         LabWorkspaceExportApp,
         LabWorkspaceExportApp.description.splitlines()[0],
@@ -344,7 +352,7 @@ class LabWorkspaceApp(JupyterApp):
     def start(self):
         try:
             super().start()
-            print("One of `export`, `import` or `list` must be specified.")
+            self.log.error("One of `export`, `import` or `list` must be specified.")
             self.exit(1)
         except NoStart:
             pass
@@ -404,7 +412,7 @@ def _default_static_dir(self):
 )
 
 
-class LabApp(NBClassicConfigShimMixin, LabServerApp):
+class LabApp(NotebookConfigShimMixin, LabServerApp):
     version = version
 
     name = "lab"
@@ -451,11 +459,18 @@ class LabApp(NBClassicConfigShimMixin, LabServerApp):
     aliases["app-dir"] = "LabApp.app_dir"
 
     flags = flags
-    flags["core-mode"] = ({"LabApp": {"core_mode": True}}, "Start the app in core mode.")
+    flags["core-mode"] = (
+        {"LabApp": {"core_mode": True}},
+        "Start the app in core mode.",
+    )
     flags["dev-mode"] = (
         {"LabApp": {"dev_mode": True}},
         "Start the app in dev mode for running from source.",
     )
+    flags["skip-dev-build"] = (
+        {"LabApp": {"skip_dev_build": True}},
+        "Skip the initial install and JS build of the app in dev mode.",
+    )
     flags["watch"] = ({"LabApp": {"watch": True}}, "Start the app in watch mode.")
     flags["splice-source"] = (
         {"LabApp": {"splice_source": True}},
@@ -463,8 +478,7 @@ class LabApp(NBClassicConfigShimMixin, LabServerApp):
     )
     flags["expose-app-in-browser"] = (
         {"LabApp": {"expose_app_in_browser": True}},
-        """Expose the global app instance to browser via window.jupyterapp.
-        It is also available via the deprecated window.jupyterlab name.""",
+        "Expose the global app instance to browser via window.jupyterapp.",
     )
     flags["extensions-in-dev-mode"] = (
         {"LabApp": {"extensions_in_dev_mode": True}},
@@ -472,25 +486,24 @@ class LabApp(NBClassicConfigShimMixin, LabServerApp):
     )
     flags["collaborative"] = (
         {"LabApp": {"collaborative": True}},
-        "Whether to enable collaborative mode.",
-    )
-    flags["future-skip-styles-for-disabled"] = (
-        {"LabApp": {"future_skip_styles_for_disabled": True}},
-        """Whether to skip loading styles for disabled prebuilt extensions.
-        This will be the default behavior starting with JupyterLab 4.0
-        (and this flag will be removed).""",
-    )
+        """To enable real-time collaboration, you must install the extension `jupyter_collaboration`.
+        You can install it using pip for example:
 
-    subcommands = dict(
-        build=(LabBuildApp, LabBuildApp.description.splitlines()[0]),
-        clean=(LabCleanApp, LabCleanApp.description.splitlines()[0]),
-        path=(LabPathApp, LabPathApp.description.splitlines()[0]),
-        paths=(LabPathApp, LabPathApp.description.splitlines()[0]),
-        workspace=(LabWorkspaceApp, LabWorkspaceApp.description.splitlines()[0]),
-        workspaces=(LabWorkspaceApp, LabWorkspaceApp.description.splitlines()[0]),
-        licenses=(LabLicensesApp, LabLicensesApp.description.splitlines()[0]),
+            python -m pip install jupyter_collaboration
+
+        This flag is now deprecated and will be removed in JupyterLab v5.""",
     )
 
+    subcommands = {
+        "build": (LabBuildApp, LabBuildApp.description.splitlines()[0]),
+        "clean": (LabCleanApp, LabCleanApp.description.splitlines()[0]),
+        "path": (LabPathApp, LabPathApp.description.splitlines()[0]),
+        "paths": (LabPathApp, LabPathApp.description.splitlines()[0]),
+        "workspace": (LabWorkspaceApp, LabWorkspaceApp.description.splitlines()[0]),
+        "workspaces": (LabWorkspaceApp, LabWorkspaceApp.description.splitlines()[0]),
+        "licenses": (LabLicensesApp, LabLicensesApp.description.splitlines()[0]),
+    }
+
     default_url = Unicode("/lab", config=True, help="The default URL to redirect to from `/`")
 
     override_static_url = Unicode(
@@ -498,7 +511,8 @@ class LabApp(NBClassicConfigShimMixin, LabServerApp):
     )
 
     override_theme_url = Unicode(
-        config=True, help=("The override url for static lab theme assets, typically a CDN.")
+        config=True,
+        help=("The override url for static lab theme assets, typically a CDN."),
     )
 
     app_dir = Unicode(None, config=True, help="The app directory to launch JupyterLab from.")
@@ -540,25 +554,40 @@ class LabApp(NBClassicConfigShimMixin, LabServerApp):
         against published packages may not work correctly.""",
     )
 
+    extension_manager = Unicode(
+        "pypi",
+        config=True,
+        help="""The extension manager factory to use. The default options are:
+        "readonly" for a manager without installation capability or "pypi" for
+        a manager using PyPi.org and pip to install extensions.""",
+    )
+
     watch = Bool(False, config=True, help="Whether to serve the app in watch mode")
 
+    skip_dev_build = Bool(
+        False,
+        config=True,
+        help="Whether to skip the initial install and JS build of the app in dev mode",
+    )
+
     splice_source = Bool(False, config=True, help="Splice source packages into app directory.")
 
     expose_app_in_browser = Bool(
         False,
         config=True,
-        help="Whether to expose the global app instance to browser via window.jupyterlab",
+        help="Whether to expose the global app instance to browser via window.jupyterapp",
     )
 
-    future_skip_styles_for_disabled = Bool(
+    collaborative = Bool(
         False,
         config=True,
-        help="""Whether to skip loading styles for disabled prebuilt extensions.
-        This will be the default behavior starting with JupyterLab 4.0
-        (and this flag will be removed).""",
-    )
+        help="""To enable real-time collaboration, you must install the extension `jupyter_collaboration`.
+        You can install it using pip for example:
 
-    collaborative = Bool(False, config=True, help="Whether to enable collaborative mode.")
+            python -m pip install jupyter_collaboration
+
+        This flag is now deprecated and will be removed in JupyterLab v5.""",
+    )
 
     news_url = Unicode(
         "https://jupyterlab.github.io/assets/feed.xml",
@@ -618,7 +647,7 @@ def _default_static_url_prefix(self):
         if self.override_static_url:
             return self.override_static_url
         else:
-            static_url = "/static/{name}/".format(name=self.name)
+            static_url = f"/static/{self.name}/"
             return ujoin(self.serverapp.base_url, static_url)
 
     @default("theme_url")
@@ -638,11 +667,11 @@ def initialize_templates(self):
             self.log.info("Running JupyterLab in dev mode")
 
         if self.watch and self.core_mode:
-            self.log.warn("Cannot watch in core mode, did you mean --dev-mode?")
+            self.log.warning("Cannot watch in core mode, did you mean --dev-mode?")
             self.watch = False
 
         if self.core_mode and self.dev_mode:
-            self.log.warn("Conflicting modes, choosing dev_mode over core_mode")
+            self.log.warning("Conflicting modes, choosing dev_mode over core_mode")
             self.core_mode = False
 
         # Set the paths based on JupyterLab's mode.
@@ -651,8 +680,18 @@ def initialize_templates(self):
             self.static_paths = [dev_static_dir]
             self.template_paths = [dev_static_dir]
             if not self.extensions_in_dev_mode:
-                self.labextensions_path = []
-                self.extra_labextensions_path = []
+                # Add an exception for @jupyterlab/galata-extension
+                galata_extension = pjoin(HERE, "galata")
+                self.labextensions_path = (
+                    [galata_extension]
+                    if galata_extension in map(os.path.abspath, self.labextensions_path)
+                    else []
+                )
+                self.extra_labextensions_path = (
+                    [galata_extension]
+                    if galata_extension in map(os.path.abspath, self.extra_labextensions_path)
+                    else []
+                )
         elif self.core_mode:
             dev_static_dir = ujoin(HERE, "static")
             self.static_paths = [dev_static_dir]
@@ -663,11 +702,7 @@ def initialize_templates(self):
             self.static_paths = [self.static_dir]
             self.template_paths = [self.templates_dir]
 
-    def initialize_settings(self):
-        super().initialize_settings()
-
-    def initialize_handlers(self):
-
+    def initialize_handlers(self):  # noqa
         handlers = []
 
         # Set config for Jupyterlab
@@ -678,9 +713,7 @@ def initialize_handlers(self):
         page_config["token"] = self.serverapp.token
         page_config["exposeAppInBrowser"] = self.expose_app_in_browser
         page_config["quitButton"] = self.serverapp.quit_button
-        page_config["collaborative"] = self.collaborative
         page_config["allow_hidden_files"] = self.serverapp.contents_manager.allow_hidden
-        page_config["futureSkipStylesForDisabled"] = self.future_skip_styles_for_disabled
 
         # Client-side code assumes notebookVersion is a JSON-encoded string
         page_config["notebookVersion"] = json.dumps(jpserver_version_info)
@@ -704,7 +737,7 @@ def initialize_handlers(self):
             self.log.info(CORE_NOTE.strip())
             ensure_core(self.log)
         elif self.dev_mode:
-            if not self.watch:
+            if not (self.watch or self.skip_dev_build):
                 ensure_dev(self.log)
                 self.log.info(DEV_NOTE)
         else:
@@ -727,8 +760,60 @@ def initialize_handlers(self):
             self.cache_files = False
 
         if not self.core_mode and not errored:
-            ext_manager = ExtensionManager(app_options=build_handler_options)
-            ext_handler = (extensions_handler_path, ExtensionHandler, {"manager": ext_manager})
+            # Add extension management handlers
+            provider = self.extension_manager
+            entry_point = EXT_MANAGERS.get(provider)
+            if entry_point is None:
+                self.log.error(f"Extension Manager: No manager defined for provider '{provider}'.")
+                raise NotImplementedError()
+            else:
+                self.log.info(f"Extension Manager is '{provider}'.")
+            manager_factory = entry_point.load()
+            config = self.settings.get("config", {}).get("LabServerApp", {})
+
+            blocked_extensions_uris = config.get("blocked_extensions_uris", "")
+            allowed_extensions_uris = config.get("allowed_extensions_uris", "")
+
+            if (blocked_extensions_uris) and (allowed_extensions_uris):
+                self.log.error(
+                    "Simultaneous LabServerApp.blocked_extensions_uris and LabServerApp.allowed_extensions_uris is not supported. Please define only one of those."
+                )
+                import sys
+
+                sys.exit(-1)
+
+            listings_config = {
+                "blocked_extensions_uris": set(
+                    filter(lambda uri: len(uri) > 0, blocked_extensions_uris.split(","))
+                ),
+                "allowed_extensions_uris": set(
+                    filter(lambda uri: len(uri) > 0, allowed_extensions_uris.split(","))
+                ),
+                "listings_refresh_seconds": config.get("listings_refresh_seconds", 60 * 60),
+                "listings_tornado_options": config.get("listings_tornado_options", {}),
+            }
+            if len(listings_config["blocked_extensions_uris"]) or len(
+                listings_config["allowed_extensions_uris"]
+            ):
+                self.log.debug(f"Extension manager will be constrained by {listings_config}")
+
+            try:
+                ext_manager = manager_factory(build_handler_options, listings_config, self)
+                metadata = dataclasses.asdict(ext_manager.metadata)
+            except Exception as err:
+                self.log.warning(
+                    f"Failed to instantiate the extension manager {provider}. Falling back to read-only manager.",
+                    exc_info=err,
+                )
+                ext_manager = ReadOnlyExtensionManager(build_handler_options, listings_config, self)
+                metadata = dataclasses.asdict(ext_manager.metadata)
+
+            page_config["extensionManager"] = metadata
+            ext_handler = (
+                extensions_handler_path,
+                ExtensionHandler,
+                {"manager": ext_manager},
+            )
             handlers.append(ext_handler)
 
             # Add announcement handlers
@@ -779,16 +864,21 @@ def initialize_handlers(self):
     def initialize(self, argv=None):
         """Subclass because the ExtensionApp.initialize() method does not take arguments"""
         super().initialize()
-
-        if self.collaborative and jpserver_version_info < (2, 0, 0):
-            jpserver_version = ".".join(filter(lambda p: len(p) > 0, map(str, jpserver_version_info)))
-            self.log.critical(f"""To enable real-time collaboration, you must install Jupyter Server v2 (current version is {jpserver_version}).
-
+        if self.collaborative:
+            try:
+                import jupyter_collaboration  # noqa
+            except ImportError:
+                self.log.critical(
+                    """
+To enable real-time collaboration, you must install the extension `jupyter_collaboration`.
 You can install it using pip for example:
 
-  python -m pip install "jupyter_server>=2.0.0"
-""")
-            sys.exit(1)
+  python -m pip install jupyter_collaboration
+
+This flag is now deprecated and will be removed in JupyterLab v5.
+"""
+                )
+                sys.exit(1)
 
 
 # -----------------------------------------------------------------------------
diff --git a/jupyterlab/labextensions.py b/jupyterlab/labextensions.py
index 9681607fc93d..5a1a82109ba9 100644
--- a/jupyterlab/labextensions.py
+++ b/jupyterlab/labextensions.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """Jupyter LabExtension Entry Points."""
 
 # Copyright (c) Jupyter Development Team.
@@ -29,11 +28,7 @@
     unlink_package,
     update_extension,
 )
-from .federated_labextensions import (
-    build_labextension,
-    develop_labextension_py,
-    watch_labextension,
-)
+from .federated_labextensions import build_labextension, develop_labextension_py, watch_labextension
 from .labapp import LabApp
 
 flags = dict(base_flags)
@@ -99,8 +94,6 @@
 
 VERSION = get_app_version()
 
-HERE = os.path.abspath(os.path.dirname(__file__))
-
 LABEXTENSION_COMMAND_WARNING = "Users should manage prebuilt extensions with package managers like pip and conda, and extension authors are encouraged to distribute their extensions as prebuilt packages"
 
 
@@ -156,7 +149,8 @@ def _default_splice_source(self):
 
     def start(self):
         if self.app_dir and self.app_dir.startswith(HERE):
-            raise ValueError("Cannot run lab extension commands in core app")
+            msg = "Cannot run lab extension commands in core app"
+            raise ValueError(msg)
         with self.debug_logging():
             ans = self.run_task()
             if ans and self.should_build:
@@ -213,25 +207,23 @@ def run_task(self):
         pinned_versions = self.pin.split(",")
         self.extra_args = self.extra_args or [os.getcwd()]
         return any(
-            [
-                install_extension(
-                    arg,
-                    # Pass in pinned alias if we have it
-                    pin=pinned_versions[i] if i < len(pinned_versions) else None,
-                    app_options=AppOptions(
-                        app_dir=self.app_dir,
-                        logger=self.log,
-                        core_config=self.core_config,
-                        labextensions_path=self.labextensions_path,
-                    ),
-                )
-                for i, arg in enumerate(self.extra_args)
-            ]
+            install_extension(
+                arg,
+                # Pass in pinned alias if we have it
+                pin=pinned_versions[i] if i < len(pinned_versions) else None,
+                app_options=AppOptions(
+                    app_dir=self.app_dir,
+                    logger=self.log,
+                    core_config=self.core_config,
+                    labextensions_path=self.labextensions_path,
+                ),
+            )
+            for i, arg in enumerate(self.extra_args)
         )
 
 
 class DevelopLabExtensionApp(BaseExtensionApp):
-    description = "Develop labextension"
+    description = "(developer) Develop labextension"
     flags = develop_flags
 
     user = Bool(False, config=True, help="Whether to do a user install")
@@ -246,7 +238,7 @@ class DevelopLabExtensionApp(BaseExtensionApp):
     )
 
     def run_task(self):
-        "Add config for this labextension"
+        """Add config for this labextension"""
         self.extra_args = self.extra_args or [os.getcwd()]
         for arg in self.extra_args:
             develop_labextension_py(
@@ -261,7 +253,7 @@ def run_task(self):
 
 
 class BuildLabExtensionApp(BaseExtensionApp):
-    description = "Build labextension"
+    description = "(developer) Build labextension"
 
     static_url = Unicode("", config=True, help="Sets the url for static assets when building")
 
@@ -295,7 +287,7 @@ def run_task(self):
 
 
 class WatchLabExtensionApp(BaseExtensionApp):
-    description = "Watch labextension"
+    description = "(developer) Watch labextension"
 
     development = Bool(True, config=True, help="Build in development mode")
 
@@ -330,14 +322,16 @@ class UpdateLabExtensionApp(BaseExtensionApp):
     description = "Update labextension(s)"
     flags = update_flags
 
-    all = Bool(False, config=True, help="Whether to update all extensions")
+    all = Bool(False, config=True, help="Whether to update all extensions")  # noqa
 
     def run_task(self):
         self.deprecation_warning(
             "Updating extensions with the jupyter labextension update command is now deprecated and will be removed in a future major version of JupyterLab."
         )
         if not self.all and not self.extra_args:
-            self.log.warn("Specify an extension to update, or use --all to update all extensions")
+            self.log.warning(
+                "Specify an extension to update, or use --all to update all extensions"
+            )
             return False
         app_options = AppOptions(
             app_dir=self.app_dir,
@@ -347,7 +341,7 @@ def run_task(self):
         )
         if self.all:
             return update_extension(all_=True, app_options=app_options)
-        return any([update_extension(name=arg, app_options=app_options) for arg in self.extra_args])
+        return any(update_extension(name=arg, app_options=app_options) for arg in self.extra_args)
 
 
 class LinkLabExtensionApp(BaseExtensionApp):
@@ -368,7 +362,7 @@ def run_task(self):
             labextensions_path=self.labextensions_path,
             core_config=self.core_config,
         )
-        return any([link_package(arg, app_options=options) for arg in self.extra_args])
+        return any(link_package(arg, app_options=options) for arg in self.extra_args)
 
 
 class UnlinkLabExtensionApp(BaseExtensionApp):
@@ -382,14 +376,14 @@ def run_task(self):
             labextensions_path=self.labextensions_path,
             core_config=self.core_config,
         )
-        return any([unlink_package(arg, app_options=options) for arg in self.extra_args])
+        return any(unlink_package(arg, app_options=options) for arg in self.extra_args)
 
 
 class UninstallLabExtensionApp(BaseExtensionApp):
     description = "Uninstall labextension(s) by name"
     flags = uninstall_flags
 
-    all = Bool(False, config=True, help="Whether to uninstall all extensions")
+    all = Bool(False, config=True, help="Whether to uninstall all extensions")  # noqa
 
     def run_task(self):
         self.deprecation_warning(
@@ -404,10 +398,7 @@ def run_task(self):
             core_config=self.core_config,
         )
         return any(
-            [
-                uninstall_extension(arg, all_=self.all, app_options=options)
-                for arg in self.extra_args
-            ]
+            uninstall_extension(arg, all_=self.all, app_options=options) for arg in self.extra_args
         )
 
 
@@ -494,13 +485,13 @@ def run_task(self):
             self.exit(1)
 
 
-_examples = """
+_EXAMPLES = """
 jupyter labextension list                        # list all configured labextensions
-jupyter labextension develop                     # develop a prebuilt labextension
-jupyter labextension build                       # build a prebuilt labextension
-jupyter labextension watch                       # watch a prebuilt labextension
 jupyter labextension install <extension name>    # install a labextension
 jupyter labextension uninstall <extension name>  # uninstall a labextension
+jupyter labextension develop                     # (developer) develop a prebuilt labextension
+jupyter labextension build                       # (developer) build a prebuilt labextension
+jupyter labextension watch                       # (developer) watch a prebuilt labextension
 """
 
 
@@ -510,26 +501,26 @@ class LabExtensionApp(JupyterApp):
     name = "jupyter labextension"
     version = VERSION
     description = "Work with JupyterLab extensions"
-    examples = _examples
-
-    subcommands = dict(
-        install=(InstallLabExtensionApp, "Install labextension(s)"),
-        develop=(DevelopLabExtensionApp, "Develop labextension(s)"),
-        build=(BuildLabExtensionApp, "Build labextension"),
-        watch=(WatchLabExtensionApp, "Watch labextension"),
-        update=(UpdateLabExtensionApp, "Update labextension(s)"),
-        uninstall=(UninstallLabExtensionApp, "Uninstall labextension(s)"),
-        list=(ListLabExtensionsApp, "List labextensions"),
-        link=(LinkLabExtensionApp, "Link labextension(s)"),
-        unlink=(UnlinkLabExtensionApp, "Unlink labextension(s)"),
-        enable=(EnableLabExtensionsApp, "Enable labextension(s)"),
-        disable=(DisableLabExtensionsApp, "Disable labextension(s)"),
-        check=(CheckLabExtensionsApp, "Check labextension(s)"),
-    )
+    examples = _EXAMPLES
+
+    subcommands = {
+        "install": (InstallLabExtensionApp, "Install labextension(s)"),
+        "update": (UpdateLabExtensionApp, "Update labextension(s)"),
+        "uninstall": (UninstallLabExtensionApp, "Uninstall labextension(s)"),
+        "list": (ListLabExtensionsApp, "List labextensions"),
+        "link": (LinkLabExtensionApp, "Link labextension(s)"),
+        "unlink": (UnlinkLabExtensionApp, "Unlink labextension(s)"),
+        "enable": (EnableLabExtensionsApp, "Enable labextension(s)"),
+        "disable": (DisableLabExtensionsApp, "Disable labextension(s)"),
+        "check": (CheckLabExtensionsApp, "Check labextension(s)"),
+        "develop": (DevelopLabExtensionApp, "(developer) Develop labextension(s)"),
+        "build": (BuildLabExtensionApp, "(developer) Build labextension"),
+        "watch": (WatchLabExtensionApp, "(developer) Watch labextension"),
+    }
 
     def start(self):
         """Perform the App's functions as configured"""
-        super(LabExtensionApp, self).start()
+        super().start()
 
         # The above should have called a subcommand and raised NoStart; if we
         # get here, it didn't, so we should self.log.info a message.
diff --git a/jupyterlab/labhubapp.py b/jupyterlab/labhubapp.py
index cbe1565fddf6..d8dc9d51df13 100644
--- a/jupyterlab/labhubapp.py
+++ b/jupyterlab/labhubapp.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """A JupyterHub EntryPoint that defaults to use JupyterLab"""
 
 # Copyright (c) Jupyter Development Team.
diff --git a/jupyterlab/node-version-check.js b/jupyterlab/node-version-check.js
index ac858a211349..a8a5c445c80e 100644
--- a/jupyterlab/node-version-check.js
+++ b/jupyterlab/node-version-check.js
@@ -1,4 +1,8 @@
-#!/usr/bin/env node
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const pkg = require('./staging/package.json');
 
 function parser(part) {
diff --git a/jupyterlab/pytest_plugin.py b/jupyterlab/pytest_plugin.py
index 3374c6f48123..4ca1b3aa925b 100644
--- a/jupyterlab/pytest_plugin.py
+++ b/jupyterlab/pytest_plugin.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import urllib.parse
 
 import pytest
@@ -96,13 +99,14 @@ def labapp(jp_serverapp, make_lab_app):
 def fetch_long(http_server_client, jp_auth_header, jp_base_url):
     """fetch fixture that handles auth, base_url, and path"""
 
-    def client_fetch(*parts, headers={}, params={}, **kwargs):
+    def client_fetch(*parts, headers=None, params=None, **kwargs):
         # Handle URL strings
         path_url = url_escape(url_path_join(*parts), plus=False)
         path_url = url_path_join(jp_base_url, path_url)
-        params_url = urllib.parse.urlencode(params)
+        params_url = urllib.parse.urlencode(params or {})
         url = path_url + "?" + params_url
         # Add auth keys to header
+        headers = headers or {}
         headers.update(jp_auth_header)
         # Make request.
         return http_server_client.fetch(url, headers=headers, request_timeout=250, **kwargs)
diff --git a/jupyterlab/semver.py b/jupyterlab/semver.py
index 941823e9ad45..c785152946f4 100644
--- a/jupyterlab/semver.py
+++ b/jupyterlab/semver.py
@@ -1,4 +1,6 @@
-# -*- coding:utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 # This file comes from https://github.com/podhmo/python-semver/blob/b42e9896e391e086b773fc621b23fa299d16b874/semver/__init__.py
 #
 # It is licensed under the following license:
@@ -33,14 +35,10 @@
 
 SEMVER_SPEC_VERSION = "2.0.0"
 
-# Python 2/3 compatibility
-try:
-    string_type = basestring
-except NameError:
-    string_type = str
+string_type = str
 
 
-class _R(object):
+class _R:
     def __init__(self, i):
         self.i = i
 
@@ -327,10 +325,7 @@ def list_get(xs, i):
 
 
 def parse(version, loose):
-    if loose:
-        r = regexp[LOOSE]
-    else:
-        r = regexp[FULL]
+    r = regexp[LOOSE] if loose else regexp[FULL]
     m = r.search(version)
     if m:
         return semver(version, loose)
@@ -354,7 +349,7 @@ def clean(version, loose):
         return None
 
 
-NUMERIC = re.compile("^\d+$")
+NUMERIC = re.compile(r"^\d+$")
 
 
 def semver(version, loose):
@@ -364,7 +359,7 @@ def semver(version, loose):
         else:
             version = version.version
     elif not isinstance(version, string_type):  # xxx:
-        raise ValueError("Invalid Version: {}".format(version))
+        raise ValueError(f"Invalid Version: {version}")
 
     """
     if (!(this instanceof SemVer))
@@ -376,7 +371,7 @@ def semver(version, loose):
 make_semver = semver
 
 
-class SemVer(object):
+class SemVer:
     def __init__(self, version, loose):
         logger.debug("SemVer %s, %s", version, loose)
         self.loose = loose
@@ -385,7 +380,7 @@ def __init__(self, version, loose):
         m = regexp[LOOSE if loose else FULL].search(version.strip())
         if not m:
             if not loose:
-                raise ValueError("Invalid Version: {}".format(version))
+                raise ValueError(f"Invalid Version: {version}")
             m = regexp[RECOVERYVERSIONNAME].search(version.strip())
             self.major = int(m.group(1)) if m.group(1) else 0
             self.minor = int(m.group(2)) if m.group(2) else 0
@@ -394,7 +389,7 @@ def __init__(self, version, loose):
                 self.prerelease = []
             else:
                 self.prerelease = [
-                    (int(id) if NUMERIC.search(id) else id) for id in m.group(3).split(".")
+                    (int(id_) if NUMERIC.search(id_) else id_) for id_ in m.group(3).split(".")
                 ]
         else:
             #  these are actually numbers
@@ -405,9 +400,8 @@ def __init__(self, version, loose):
             if not m.group(4):
                 self.prerelease = []
             else:
-
                 self.prerelease = [
-                    (int(id) if NUMERIC.search(id) else id) for id in m.group(4).split(".")
+                    (int(id_) if NUMERIC.search(id_) else id_) for id_ in m.group(4).split(".")
                 ]
             if m.group(5):
                 self.build = m.group(5).split(".")
@@ -416,14 +410,14 @@ def __init__(self, version, loose):
 
         self.format()  # xxx:
 
-    def format(self):
-        self.version = "{}.{}.{}".format(self.major, self.minor, self.patch)
+    def format(self):  # noqa
+        self.version = f"{self.major}.{self.minor}.{self.patch}"
         if len(self.prerelease) > 0:
             self.version += "-{}".format(".".join(str(v) for v in self.prerelease))
         return self.version
 
     def __repr__(self):
-        return "<SemVer {} >".format(self)
+        return f"<SemVer {self} >"
 
     def __str__(self):
         return self.version
@@ -446,7 +440,7 @@ def compare_main(self, other):
             or compare_identifiers(str(self.patch), str(other.patch))
         )
 
-    def compare_pre(self, other):
+    def compare_pre(self, other):  # noqa PLR0911
         if not isinstance(other, SemVer):
             other = make_semver(other, self.loose)
 
@@ -478,7 +472,7 @@ def compare_pre(self, other):
             else:
                 return compare_identifiers(str(a), str(b))
 
-    def inc(self, release, identifier=None):
+    def inc(self, release, identifier=None):  # noqa PLR0915
         logger.debug("inc release %s %s", self.prerelease, release)
         if release == "premajor":
             self.prerelease = []
@@ -556,7 +550,7 @@ def inc(self, release, identifier=None):
                 else:
                     self.prerelease = [identifier, 0]
         else:
-            raise ValueError("invalid increment argument: {}".format(release))
+            raise ValueError(f"invalid increment argument: {release}")
         self.format()
         self.raw = self.version
         return self
@@ -610,11 +604,11 @@ def make_key_function(loose):
     def key_function(version):
         v = make_semver(version, loose)
         key = (v.major, v.minor, v.patch)
-        if v.prerelease:
+        if v.prerelease:  # noqa SIM108
             key = key + tuple(v.prerelease)
         else:
             #  NOT having a prerelease is > having one
-            key = key + (float("inf"),)
+            key = (*key, float("inf"))
 
         return key
 
@@ -625,16 +619,16 @@ def key_function(version):
 full_key_function = make_key_function(True)
 
 
-def sort(list, loose):
+def sort(list_, loose):
     keyf = loose_key_function if loose else full_key_function
-    list.sort(key=keyf)
-    return list
+    list_.sort(key=keyf)
+    return list_
 
 
-def rsort(list, loose):
+def rsort(list_, loose):
     keyf = loose_key_function if loose else full_key_function
-    list.sort(key=keyf, reverse=True)
-    return list
+    list_.sort(key=keyf, reverse=True)
+    return list_
 
 
 def gt(a, b, loose):
@@ -661,7 +655,7 @@ def lte(a, b, loose):
     return compare(a, b, loose) <= 0
 
 
-def cmp(a, op, b, loose):
+def cmp(a, op, b, loose):  # noqa PLR0911
     logger.debug("cmp: %s", op)
     if op == "===":
         return a == b
@@ -680,7 +674,7 @@ def cmp(a, op, b, loose):
     elif op == "<=":
         return lte(a, b, loose)
     else:
-        raise ValueError("Invalid operator: {}".format(op))
+        raise ValueError(f"Invalid operator: {op}")
 
 
 def comparator(comp, loose):
@@ -700,7 +694,7 @@ def comparator(comp, loose):
 ANY = object()
 
 
-class Comparator(object):
+class Comparator:
     semver = None
 
     def __init__(self, comp, loose):
@@ -714,15 +708,12 @@ def __init__(self, comp, loose):
             self.value = self.operator + self.semver.version
 
     def parse(self, comp):
-        if self.loose:
-            r = regexp[COMPARATORLOOSE]
-        else:
-            r = regexp[COMPARATOR]
+        r = regexp[COMPARATORLOOSE] if self.loose else regexp[COMPARATOR]
         logger.debug("parse comp=%s", comp)
         m = r.search(comp)
 
         if m is None:
-            raise ValueError("Invalid comparator: {}".format(comp))
+            raise ValueError(f"Invalid comparator: {comp}")
 
         self.operator = m.group(1)
         # if it literally is just '>' or '' then allow anything.
@@ -732,7 +723,7 @@ def parse(self, comp):
             self.semver = semver(m.group(2), self.loose)
 
     def __repr__(self):
-        return '<SemVer Comparator "{}">'.format(self)
+        return f'<SemVer Comparator "{self}">'
 
     def __str__(self):
         return self.value
@@ -754,7 +745,7 @@ def make_range(range_, loose):
     return Range(range_, loose)
 
 
-class Range(object):
+class Range:
     def __init__(self, range_, loose):
         self.loose = loose
         #  First, split based on boolean or ||
@@ -763,14 +754,14 @@ def __init__(self, range_, loose):
         self.set = [r for r in xs if r]
 
         if not len(self.set):
-            raise ValueError("Invalid SemVer Range: {}".format(range_))
+            raise ValueError(f"Invalid SemVer Range: {range_}")
 
         self.format()
 
     def __repr__(self):
-        return '<SemVer Range "{}">'.format(self.range)
+        return f'<SemVer Range "{self.range}">'
 
-    def format(self):
+    def format(self):  # noqa
         self.range = "||".join(
             [" ".join(c.value for c in comps).strip() for comps in self.set]
         ).strip()
@@ -784,10 +775,7 @@ def parse_range(self, range_):
         loose = self.loose
         logger.debug("range %s %s", range_, loose)
         #  `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
-        if loose:
-            hr = regexp[HYPHENRANGELOOSE]
-        else:
-            hr = regexp[HYPHENRANGE]
+        hr = regexp[HYPHENRANGELOOSE] if loose else regexp[HYPHENRANGE]
 
         range_ = hr.sub(
             hyphen_replace,
@@ -806,16 +794,13 @@ def parse_range(self, range_):
         range_ = regexp[CARETTRIM].sub(caretTrimReplace, range_)
 
         #  normalize spaces
-        range_ = " ".join(re.split("\s+", range_))
+        range_ = " ".join(re.split(r"\s+", range_))
 
         #  At this point, the range is completely trimmed and
         #  ready to be split into comparators.
-        if loose:
-            comp_re = regexp[COMPARATORLOOSE]
-        else:
-            comp_re = regexp[COMPARATOR]
+        comp_re = regexp[COMPARATORLOOSE] if loose else regexp[COMPARATOR]
         set_ = re.split(
-            "\s+", " ".join([parse_comparator(comp, loose) for comp in range_.split(" ")])
+            r"\s+", " ".join([parse_comparator(comp, loose) for comp in range_.split(" ")])
         )
         if self.loose:
             # in loose mode, throw out any that are not valid comparators
@@ -830,10 +815,7 @@ def test(self, version):
         if isinstance(version, string_type):
             version = make_semver(version, loose=self.loose)
 
-        for e in self.set:
-            if test_set(e, version):
-                return True
-        return False
+        return any(test_set(e, version) for e in self.set)
 
 
 #  Mostly just for testing and legacy API reasons
@@ -862,8 +844,8 @@ def parse_comparator(comp, loose):
     return comp
 
 
-def is_x(id):
-    return id is None or id == "" or id.lower() == "x" or id == "*"
+def is_x(id_):
+    return id_ is None or id_ == "" or id_.lower() == "x" or id_ == "*"
 
 
 #  ~, ~> --> * (any, kinda silly)
@@ -875,14 +857,11 @@ def is_x(id):
 
 
 def replace_tildes(comp, loose):
-    return " ".join([replace_tilde(c, loose) for c in re.split("\s+", comp.strip())])
+    return " ".join([replace_tilde(c, loose) for c in re.split(r"\s+", comp.strip())])
 
 
 def replace_tilde(comp, loose):
-    if loose:
-        r = regexp[TILDELOOSE]
-    else:
-        r = regexp[TILDE]
+    r = regexp[TILDELOOSE] if loose else regexp[TILDE]
 
     def repl(mob):
         _ = mob.group(0)
@@ -916,16 +895,13 @@ def repl(mob):
 #  ^1.2.3 --> >=1.2.3 <2.0.0
 #  ^1.2.0 --> >=1.2.0 <2.0.0
 def replace_carets(comp, loose):
-    return " ".join([replace_caret(c, loose) for c in re.split("\s+", comp.strip())])
+    return " ".join([replace_caret(c, loose) for c in re.split(r"\s+", comp.strip())])
 
 
 def replace_caret(comp, loose):
-    if loose:
-        r = regexp[CARETLOOSE]
-    else:
-        r = regexp[CARET]
+    r = regexp[CARETLOOSE] if loose else regexp[CARET]
 
-    def repl(mob):
+    def repl(mob):  # noqa PLR0911
         m0 = mob.group(0)
         M, m, p, pr, _ = mob.groups()
         logger.debug("caret %s %s %s %s %s %s", comp, m0, M, m, p, pr)
@@ -933,10 +909,10 @@ def repl(mob):
         if is_x(M):
             ret = ""
         elif is_x(m):
-            ret = ">=" + M + ".0.0 <" + str((int(M) + 1)) + ".0.0"
+            ret = ">=" + M + ".0.0 <" + str(int(M) + 1) + ".0.0"
         elif is_x(p):
             if M == "0":
-                ret = ">=" + M + "." + m + ".0 <" + M + "." + str((int(m) + 1)) + ".0"
+                ret = ">=" + M + "." + m + ".0 <" + M + "." + str(int(m) + 1) + ".0"
             else:
                 ret = ">=" + M + "." + m + ".0 <" + str(int(M) + 1) + ".0.0"
         elif pr:
@@ -978,7 +954,7 @@ def repl(mob):
             else:
                 ret = ">=" + M + "." + m + "." + (p or "") + pr + " <" + str(int(M) + 1) + ".0.0"
         else:
-            if M == "0":
+            if M == "0":  # PLR5501
                 if m == "0":
                     ret = (
                         ">="
@@ -1005,7 +981,7 @@ def repl(mob):
                         + " <"
                         + M
                         + "."
-                        + str((int(m) + 1))
+                        + str(int(m) + 1)
                         + ".0"
                     )
             else:
@@ -1018,17 +994,14 @@ def repl(mob):
 
 def replace_xranges(comp, loose):
     logger.debug("replaceXRanges %s %s", comp, loose)
-    return " ".join([replace_xrange(c, loose) for c in re.split("\s+", comp.strip())])
+    return " ".join([replace_xrange(c, loose) for c in re.split(r"\s+", comp.strip())])
 
 
 def replace_xrange(comp, loose):
     comp = comp.strip()
-    if loose:
-        r = regexp[XRANGELOOSE]
-    else:
-        r = regexp[XRANGE]
+    r = regexp[XRANGELOOSE] if loose else regexp[XRANGE]
 
-    def repl(mob):
+    def repl(mob):  # noqa PLR0911
         ret = mob.group(0)
         gtlt, M, m, p, pr, _ = mob.groups()
 
@@ -1044,7 +1017,7 @@ def repl(mob):
 
         logger.debug("xrange gtlt=%s any_x=%s", gtlt, any_x)
         if xM:
-            if gtlt == ">" or gtlt == "<":
+            if gtlt == ">" or gtlt == "<":  # noqa SIM108
                 # nothing is allowed
                 ret = "<0.0.0"
             else:
@@ -1155,7 +1128,7 @@ def test_set(set_, version):
 def satisfies(version, range_, loose=False):
     try:
         range_ = make_range(range_, loose)
-    except Exception as e:
+    except Exception:
         return False
     return range_.test(version)
 
@@ -1163,12 +1136,12 @@ def satisfies(version, range_, loose=False):
 def max_satisfying(versions, range_, loose=False):
     try:
         range_ob = make_range(range_, loose=loose)
-    except:
+    except Exception:
         return None
     max_ = None
     max_sv = None
     for v in versions:
-        if range_ob.test(v):  # satisfies(v, range_, loose=loose)
+        if range_ob.test(v):  # noqa  # satisfies(v, range_, loose=loose)
             if max_ is None or max_sv.compare(v) == -1:  # compare(max, v, true)
                 max_ = v
                 max_sv = make_semver(max_, loose=loose)
@@ -1180,7 +1153,7 @@ def valid_range(range_, loose):
         #  Return '*' instead of '' so that truthiness works.
         #  This will throw if it's invalid anyway
         return make_range(range_, loose).range or "*"
-    except:
+    except Exception:
         return None
 
 
@@ -1239,7 +1212,7 @@ def outside(version, range_, hilo, loose):
 
     #  If the lowest version comparator has an operator and our version
     #  is less than it then it isn't higher than the range
-    if (not low.operator or low.operator == comp) and ltefn(version, low.semver):
+    if (not low.operator or low.operator == comp) and ltefn(version, low.semver):  # noqa SIM114
         return False
     elif low.operator == ecomp and ltfn(version, low.semver):
         return False
diff --git a/jupyterlab/serverextension.py b/jupyterlab/serverextension.py
index 5d52d51e188d..3d20544d428e 100644
--- a/jupyterlab/serverextension.py
+++ b/jupyterlab/serverextension.py
@@ -1,4 +1,5 @@
-import sys
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
 
 from jupyter_server.utils import url_path_join
 from tornado.web import RedirectHandler
@@ -10,22 +11,6 @@ def load_jupyter_server_extension(serverapp):
     """Temporary server extension shim when using
     old notebook server.
     """
-    serverapp.log.warning("Loading JupyterLab as a classic notebook (v6) extension.")
-    from jupyter_server._version import __version__
-    try:
-        from packaging.version import parse, Version
-        if parse(__version__) >= Version('2.0.0'):
-            serverapp.log.critical(
-                f"You must use Jupyter Server v1 to load JupyterLab as notebook extension. You have v{__version__} installed.\nYou can fix this by executing:\n    pip install -U \"jupyter-server<2.0.0\""
-            )
-            if serverapp.default_url == "/lab":
-                sys.exit(1)
-            else:
-                # Don't load JupyterLab when launching notebook
-                return
-    except Exception: # noqa
-        pass
-
     extension = LabApp()
     extension.serverapp = serverapp
     extension.load_config_file()
diff --git a/jupyterlab/staging/.yarnrc b/jupyterlab/staging/.yarnrc
deleted file mode 100644
index d691d254e80d..000000000000
--- a/jupyterlab/staging/.yarnrc
+++ /dev/null
@@ -1,3 +0,0 @@
-yarn-path "./yarn.js"
-ignore-optional true
-network-timeout "300000"
diff --git a/jupyterlab/staging/.yarnrc.yml b/jupyterlab/staging/.yarnrc.yml
new file mode 100644
index 000000000000..3d59d5159723
--- /dev/null
+++ b/jupyterlab/staging/.yarnrc.yml
@@ -0,0 +1,6 @@
+enableImmutableInstalls: false
+enableInlineBuilds: false
+enableTelemetry: false
+httpTimeout: 60000
+nodeLinker: node-modules
+yarnPath: "./yarn.js"
diff --git a/jupyterlab/staging/bootstrap.js b/jupyterlab/staging/bootstrap.js
index 1b07e4b40677..9a5ae3eb3187 100644
--- a/jupyterlab/staging/bootstrap.js
+++ b/jupyterlab/staging/bootstrap.js
@@ -1,8 +1,8 @@
 // This file is auto-generated from the corresponding file in /dev_mode
-/*-----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 // We copy some of the pageconfig parsing logic in @jupyterlab/coreutils
 // below, since this must run before any other files are loaded (including
@@ -41,26 +41,6 @@ function getOption(name) {
 // eslint-disable-next-line no-undef
 __webpack_public_path__ = getOption('fullStaticUrl') + '/';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise.then(
-          value => ({
-            status: 'fulfilled',
-            value
-          }),
-          reason => ({
-            status: 'rejected',
-            reason
-          })
-        )
-      )
-    );
-}
-
 function loadScript(url) {
   return new Promise((resolve, reject) => {
     const newScript = document.createElement('script');
diff --git a/jupyterlab/staging/index.js b/jupyterlab/staging/index.js
index 2e4baaeab105..0ec68c09fe9a 100644
--- a/jupyterlab/staging/index.js
+++ b/jupyterlab/staging/index.js
@@ -1,29 +1,11 @@
 // This file is auto-generated from the corresponding file in /dev_mode
-/*-----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 import { PageConfig } from '@jupyterlab/coreutils';
 
-// Promise.allSettled polyfill, until our supported browsers implement it
-// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise/allSettled
-if (Promise.allSettled === undefined) {
-  Promise.allSettled = promises =>
-    Promise.all(
-      promises.map(promise =>
-        promise
-          .then(value => ({
-            status: "fulfilled",
-            value,
-          }), reason => ({
-            status: "rejected",
-            reason,
-          }))
-      )
-    );
-}
-
 import './style.js';
 
 async function createModule(scope, module) {
@@ -88,8 +70,6 @@ export async function main() {
     PageConfig.getOption('federated_extensions')
   );
 
-  var futureSkipStylesForDisabled = (PageConfig.getOption('futureSkipStylesForDisabled') || '').toLowerCase() === 'true';
-
   const queuedFederated = [];
 
   extensions.forEach(data => {
@@ -102,7 +82,7 @@ export async function main() {
       federatedMimeExtensionPromises.push(createModule(data.name, data.mimeExtension));
     }
 
-    if (data.style && (!futureSkipStylesForDisabled || !PageConfig.Extension.isDisabled(data.name))) {
+    if (data.style && !PageConfig.Extension.isDisabled(data.name)) {
       federatedStylePromises.push(createModule(data.name, data.style));
     }
   });
@@ -216,7 +196,6 @@ export async function main() {
   var devMode = (PageConfig.getOption('devMode') || '').toLowerCase() === 'true';
 
   if (exposeAppInBrowser || devMode) {
-    window.jupyterlab = lab;
     window.jupyterapp = lab;
   }
 
diff --git a/jupyterlab/staging/package.json b/jupyterlab/staging/package.json
index f5bef8e6a56d..86b9d9d9e45a 100644
--- a/jupyterlab/staging/package.json
+++ b/jupyterlab/staging/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/application-top",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "license": "BSD-3-Clause",
   "scripts": {
@@ -8,223 +8,222 @@
     "build:dev": "npm run build",
     "build:prod": "webpack --config webpack.prod.config.js",
     "build:prod:minimize": "webpack --config webpack.prod.minimize.config.js",
+    "build:prod:minimize:report": "npm run build:prod:minimize:stats && webpack-bundle-analyzer --no-open --mode static --report static/webpack-bundle-analyzer.html stats.json static",
+    "build:prod:minimize:stats": "webpack --profile --config webpack.prod.minimize.config.js --json > stats.json",
     "build:prod:release": "webpack --config webpack.prod.release.config.js",
-    "build:prod:stats": "webpack --profile --config webpack.prod.minimize.config.js --json > stats.json",
     "build:stats": "webpack --profile --json > stats.json",
     "clean": "rimraf build",
     "prepublishOnly": "npm run build",
     "watch": "webpack --watch"
   },
   "resolutions": {
-    "@jupyter/ydoc": "~0.2.4",
-    "@jupyterlab/application": "~3.6.6",
-    "@jupyterlab/application-extension": "~3.6.6",
-    "@jupyterlab/apputils": "~3.6.6",
-    "@jupyterlab/apputils-extension": "~3.6.6",
-    "@jupyterlab/attachments": "~3.6.6",
-    "@jupyterlab/cell-toolbar": "~3.6.6",
-    "@jupyterlab/cell-toolbar-extension": "~3.6.6",
-    "@jupyterlab/cells": "~3.6.6",
-    "@jupyterlab/celltags": "~3.6.6",
-    "@jupyterlab/celltags-extension": "~3.6.6",
-    "@jupyterlab/codeeditor": "~3.6.6",
-    "@jupyterlab/codemirror": "~3.6.6",
-    "@jupyterlab/codemirror-extension": "~3.6.6",
-    "@jupyterlab/collaboration": "~3.6.6",
-    "@jupyterlab/collaboration-extension": "~3.6.6",
-    "@jupyterlab/completer": "~3.6.6",
-    "@jupyterlab/completer-extension": "~3.6.6",
-    "@jupyterlab/console": "~3.6.6",
-    "@jupyterlab/console-extension": "~3.6.6",
-    "@jupyterlab/coreutils": "~5.6.6",
-    "@jupyterlab/csvviewer": "~3.6.6",
-    "@jupyterlab/csvviewer-extension": "~3.6.6",
-    "@jupyterlab/debugger": "~3.6.6",
-    "@jupyterlab/debugger-extension": "~3.6.6",
-    "@jupyterlab/docmanager": "~3.6.6",
-    "@jupyterlab/docmanager-extension": "~3.6.6",
-    "@jupyterlab/docprovider": "~3.6.6",
-    "@jupyterlab/docprovider-extension": "~3.6.6",
-    "@jupyterlab/docregistry": "~3.6.6",
-    "@jupyterlab/documentsearch": "~3.6.6",
-    "@jupyterlab/documentsearch-extension": "~3.6.6",
-    "@jupyterlab/extensionmanager": "~3.6.6",
-    "@jupyterlab/extensionmanager-extension": "~3.6.6",
-    "@jupyterlab/filebrowser": "~3.6.6",
-    "@jupyterlab/filebrowser-extension": "~3.6.6",
-    "@jupyterlab/fileeditor": "~3.6.6",
-    "@jupyterlab/fileeditor-extension": "~3.6.6",
-    "@jupyterlab/help-extension": "~3.6.6",
-    "@jupyterlab/htmlviewer": "~3.6.6",
-    "@jupyterlab/htmlviewer-extension": "~3.6.6",
-    "@jupyterlab/hub-extension": "~3.6.6",
-    "@jupyterlab/imageviewer": "~3.6.6",
-    "@jupyterlab/imageviewer-extension": "~3.6.6",
-    "@jupyterlab/inspector": "~3.6.6",
-    "@jupyterlab/inspector-extension": "~3.6.6",
-    "@jupyterlab/javascript-extension": "~3.6.6",
-    "@jupyterlab/json-extension": "~3.6.6",
-    "@jupyterlab/launcher": "~3.6.6",
-    "@jupyterlab/launcher-extension": "~3.6.6",
-    "@jupyterlab/logconsole": "~3.6.6",
-    "@jupyterlab/logconsole-extension": "~3.6.6",
-    "@jupyterlab/mainmenu": "~3.6.6",
-    "@jupyterlab/mainmenu-extension": "~3.6.6",
-    "@jupyterlab/markdownviewer": "~3.6.6",
-    "@jupyterlab/markdownviewer-extension": "~3.6.6",
-    "@jupyterlab/mathjax2": "~3.6.6",
-    "@jupyterlab/mathjax2-extension": "~3.6.6",
-    "@jupyterlab/metapackage": "~3.6.6",
-    "@jupyterlab/nbconvert-css": "~3.6.6",
-    "@jupyterlab/nbformat": "~3.6.6",
-    "@jupyterlab/notebook": "~3.6.6",
-    "@jupyterlab/notebook-extension": "~3.6.6",
-    "@jupyterlab/observables": "~4.6.6",
-    "@jupyterlab/outputarea": "~3.6.6",
-    "@jupyterlab/pdf-extension": "~3.6.6",
-    "@jupyterlab/property-inspector": "~3.6.6",
-    "@jupyterlab/rendermime": "~3.6.6",
-    "@jupyterlab/rendermime-extension": "~3.6.6",
-    "@jupyterlab/rendermime-interfaces": "~3.6.6",
-    "@jupyterlab/running": "~3.6.6",
-    "@jupyterlab/running-extension": "~3.6.6",
-    "@jupyterlab/services": "../../packages/services",
-    "@jupyterlab/settingeditor": "~3.6.6",
-    "@jupyterlab/settingeditor-extension": "~3.6.6",
-    "@jupyterlab/settingregistry": "~3.6.6",
-    "@jupyterlab/shared-models": "~3.6.6",
-    "@jupyterlab/shortcuts-extension": "~3.6.6",
-    "@jupyterlab/statedb": "~3.6.6",
-    "@jupyterlab/statusbar": "~3.6.6",
-    "@jupyterlab/statusbar-extension": "~3.6.6",
-    "@jupyterlab/terminal": "~3.6.6",
-    "@jupyterlab/terminal-extension": "~3.6.6",
-    "@jupyterlab/theme-dark-extension": "~3.6.6",
-    "@jupyterlab/theme-light-extension": "~3.6.6",
-    "@jupyterlab/toc": "~5.6.6",
-    "@jupyterlab/toc-extension": "~5.6.6",
-    "@jupyterlab/tooltip": "~3.6.6",
-    "@jupyterlab/tooltip-extension": "~3.6.6",
-    "@jupyterlab/translation": "~3.6.6",
-    "@jupyterlab/translation-extension": "~3.6.6",
-    "@jupyterlab/ui-components": "~3.6.6",
-    "@jupyterlab/ui-components-extension": "~3.6.6",
-    "@jupyterlab/vdom": "~3.6.6",
-    "@jupyterlab/vdom-extension": "~3.6.6",
-    "@jupyterlab/vega5-extension": "~3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/application": "^1.31.4",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
-    "yjs": "^13.5.17"
+    "@codemirror/language": "^6.0.0",
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "~1.0.2",
+    "@jupyterlab/application": "~4.0.8",
+    "@jupyterlab/application-extension": "~4.0.8",
+    "@jupyterlab/apputils": "~4.1.8",
+    "@jupyterlab/apputils-extension": "~4.0.8",
+    "@jupyterlab/attachments": "~4.0.8",
+    "@jupyterlab/cell-toolbar": "~4.0.8",
+    "@jupyterlab/cell-toolbar-extension": "~4.0.8",
+    "@jupyterlab/cells": "~4.0.8",
+    "@jupyterlab/celltags-extension": "~4.0.8",
+    "@jupyterlab/codeeditor": "~4.0.8",
+    "@jupyterlab/codemirror": "~4.0.8",
+    "@jupyterlab/codemirror-extension": "~4.0.8",
+    "@jupyterlab/completer": "~4.0.8",
+    "@jupyterlab/completer-extension": "~4.0.8",
+    "@jupyterlab/console": "~4.0.8",
+    "@jupyterlab/console-extension": "~4.0.8",
+    "@jupyterlab/coreutils": "~6.0.8",
+    "@jupyterlab/csvviewer": "~4.0.8",
+    "@jupyterlab/csvviewer-extension": "~4.0.8",
+    "@jupyterlab/debugger": "~4.0.8",
+    "@jupyterlab/debugger-extension": "~4.0.8",
+    "@jupyterlab/docmanager": "~4.0.8",
+    "@jupyterlab/docmanager-extension": "~4.0.8",
+    "@jupyterlab/docregistry": "~4.0.8",
+    "@jupyterlab/documentsearch": "~4.0.8",
+    "@jupyterlab/documentsearch-extension": "~4.0.8",
+    "@jupyterlab/extensionmanager": "~4.0.8",
+    "@jupyterlab/extensionmanager-extension": "~4.0.8",
+    "@jupyterlab/filebrowser": "~4.0.8",
+    "@jupyterlab/filebrowser-extension": "~4.0.8",
+    "@jupyterlab/fileeditor": "~4.0.8",
+    "@jupyterlab/fileeditor-extension": "~4.0.8",
+    "@jupyterlab/help-extension": "~4.0.8",
+    "@jupyterlab/htmlviewer": "~4.0.8",
+    "@jupyterlab/htmlviewer-extension": "~4.0.8",
+    "@jupyterlab/hub-extension": "~4.0.8",
+    "@jupyterlab/imageviewer": "~4.0.8",
+    "@jupyterlab/imageviewer-extension": "~4.0.8",
+    "@jupyterlab/inspector": "~4.0.8",
+    "@jupyterlab/inspector-extension": "~4.0.8",
+    "@jupyterlab/javascript-extension": "~4.0.8",
+    "@jupyterlab/json-extension": "~4.0.8",
+    "@jupyterlab/launcher": "~4.0.8",
+    "@jupyterlab/launcher-extension": "~4.0.8",
+    "@jupyterlab/logconsole": "~4.0.8",
+    "@jupyterlab/logconsole-extension": "~4.0.8",
+    "@jupyterlab/lsp": "~4.0.8",
+    "@jupyterlab/lsp-extension": "~4.0.8",
+    "@jupyterlab/mainmenu": "~4.0.8",
+    "@jupyterlab/mainmenu-extension": "~4.0.8",
+    "@jupyterlab/markdownviewer": "~4.0.8",
+    "@jupyterlab/markdownviewer-extension": "~4.0.8",
+    "@jupyterlab/markedparser-extension": "~4.0.8",
+    "@jupyterlab/mathjax-extension": "~4.0.8",
+    "@jupyterlab/metadataform": "~4.0.8",
+    "@jupyterlab/metadataform-extension": "~4.0.8",
+    "@jupyterlab/metapackage": "~4.0.8",
+    "@jupyterlab/nbconvert-css": "~4.0.8",
+    "@jupyterlab/nbformat": "~4.0.8",
+    "@jupyterlab/notebook": "~4.0.8",
+    "@jupyterlab/notebook-extension": "~4.0.8",
+    "@jupyterlab/observables": "~5.0.8",
+    "@jupyterlab/outputarea": "~4.0.8",
+    "@jupyterlab/pdf-extension": "~4.0.8",
+    "@jupyterlab/property-inspector": "~4.0.8",
+    "@jupyterlab/rendermime": "~4.0.8",
+    "@jupyterlab/rendermime-extension": "~4.0.8",
+    "@jupyterlab/rendermime-interfaces": "~3.8.8",
+    "@jupyterlab/running": "~4.0.8",
+    "@jupyterlab/running-extension": "~4.0.8",
+    "@jupyterlab/services": "~7.0.8",
+    "@jupyterlab/settingeditor": "~4.0.8",
+    "@jupyterlab/settingeditor-extension": "~4.0.8",
+    "@jupyterlab/settingregistry": "~4.0.8",
+    "@jupyterlab/shortcuts-extension": "~4.0.8",
+    "@jupyterlab/statedb": "~4.0.8",
+    "@jupyterlab/statusbar": "~4.0.8",
+    "@jupyterlab/statusbar-extension": "~4.0.8",
+    "@jupyterlab/terminal": "~4.0.8",
+    "@jupyterlab/terminal-extension": "~4.0.8",
+    "@jupyterlab/theme-dark-extension": "~4.0.8",
+    "@jupyterlab/theme-light-extension": "~4.0.8",
+    "@jupyterlab/toc": "~6.0.8",
+    "@jupyterlab/toc-extension": "~6.0.8",
+    "@jupyterlab/tooltip": "~4.0.8",
+    "@jupyterlab/tooltip-extension": "~4.0.8",
+    "@jupyterlab/translation": "~4.0.8",
+    "@jupyterlab/translation-extension": "~4.0.8",
+    "@jupyterlab/ui-components": "~4.0.8",
+    "@jupyterlab/ui-components-extension": "~4.0.8",
+    "@jupyterlab/vega5-extension": "~4.0.8",
+    "@lezer/common": "^1.0.0",
+    "@lezer/highlight": "^1.0.0",
+    "@lumino/algorithm": "^2.0.0",
+    "@lumino/application": "^2.0.1",
+    "@lumino/commands": "^2.0.1",
+    "@lumino/coreutils": "^2.0.0",
+    "@lumino/datagrid": "^2.0.1",
+    "@lumino/disposable": "^2.0.0",
+    "@lumino/domutils": "^2.0.0",
+    "@lumino/dragdrop": "^2.0.0",
+    "@lumino/keyboard": "^2.0.0",
+    "@lumino/messaging": "^2.0.0",
+    "@lumino/polling": "^2.0.0",
+    "@lumino/properties": "^2.0.0",
+    "@lumino/signaling": "^2.0.0",
+    "@lumino/virtualdom": "^2.0.0",
+    "@lumino/widgets": "^2.0.1",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "yjs": "^13.5.40"
   },
   "dependencies": {
-    "@jupyterlab/application": "~3.6.6",
-    "@jupyterlab/application-extension": "~3.6.6",
-    "@jupyterlab/apputils-extension": "~3.6.6",
-    "@jupyterlab/cell-toolbar-extension": "~3.6.6",
-    "@jupyterlab/celltags-extension": "~3.6.6",
-    "@jupyterlab/codemirror-extension": "~3.6.6",
-    "@jupyterlab/collaboration-extension": "~3.6.6",
-    "@jupyterlab/completer-extension": "~3.6.6",
-    "@jupyterlab/console-extension": "~3.6.6",
-    "@jupyterlab/coreutils": "~5.6.6",
-    "@jupyterlab/csvviewer-extension": "~3.6.6",
-    "@jupyterlab/debugger-extension": "~3.6.6",
-    "@jupyterlab/docmanager-extension": "~3.6.6",
-    "@jupyterlab/docprovider-extension": "~3.6.6",
-    "@jupyterlab/documentsearch-extension": "~3.6.6",
-    "@jupyterlab/extensionmanager-extension": "~3.6.6",
-    "@jupyterlab/filebrowser-extension": "~3.6.6",
-    "@jupyterlab/fileeditor-extension": "~3.6.6",
-    "@jupyterlab/help-extension": "~3.6.6",
-    "@jupyterlab/htmlviewer-extension": "~3.6.6",
-    "@jupyterlab/hub-extension": "~3.6.6",
-    "@jupyterlab/imageviewer-extension": "~3.6.6",
-    "@jupyterlab/inspector-extension": "~3.6.6",
-    "@jupyterlab/javascript-extension": "~3.6.6",
-    "@jupyterlab/json-extension": "~3.6.6",
-    "@jupyterlab/launcher-extension": "~3.6.6",
-    "@jupyterlab/logconsole-extension": "~3.6.6",
-    "@jupyterlab/mainmenu-extension": "~3.6.6",
-    "@jupyterlab/markdownviewer-extension": "~3.6.6",
-    "@jupyterlab/mathjax2-extension": "~3.6.6",
-    "@jupyterlab/notebook-extension": "~3.6.6",
-    "@jupyterlab/pdf-extension": "~3.6.6",
-    "@jupyterlab/rendermime-extension": "~3.6.6",
-    "@jupyterlab/running-extension": "~3.6.6",
-    "@jupyterlab/settingeditor-extension": "~3.6.6",
-    "@jupyterlab/shortcuts-extension": "~3.6.6",
-    "@jupyterlab/statusbar-extension": "~3.6.6",
-    "@jupyterlab/terminal-extension": "~3.6.6",
-    "@jupyterlab/theme-dark-extension": "~3.6.6",
-    "@jupyterlab/theme-light-extension": "~3.6.6",
-    "@jupyterlab/toc-extension": "~5.6.6",
-    "@jupyterlab/tooltip-extension": "~3.6.6",
-    "@jupyterlab/translation-extension": "~3.6.6",
-    "@jupyterlab/ui-components-extension": "~3.6.6",
-    "@jupyterlab/vdom-extension": "~3.6.6",
-    "@jupyterlab/vega5-extension": "~3.6.6"
+    "@jupyterlab/application": "~4.0.8",
+    "@jupyterlab/application-extension": "~4.0.8",
+    "@jupyterlab/apputils-extension": "~4.0.8",
+    "@jupyterlab/cell-toolbar-extension": "~4.0.8",
+    "@jupyterlab/celltags-extension": "~4.0.8",
+    "@jupyterlab/codemirror-extension": "~4.0.8",
+    "@jupyterlab/completer-extension": "~4.0.8",
+    "@jupyterlab/console-extension": "~4.0.8",
+    "@jupyterlab/coreutils": "~6.0.8",
+    "@jupyterlab/csvviewer-extension": "~4.0.8",
+    "@jupyterlab/debugger-extension": "~4.0.8",
+    "@jupyterlab/docmanager-extension": "~4.0.8",
+    "@jupyterlab/documentsearch-extension": "~4.0.8",
+    "@jupyterlab/extensionmanager-extension": "~4.0.8",
+    "@jupyterlab/filebrowser-extension": "~4.0.8",
+    "@jupyterlab/fileeditor-extension": "~4.0.8",
+    "@jupyterlab/help-extension": "~4.0.8",
+    "@jupyterlab/htmlviewer-extension": "~4.0.8",
+    "@jupyterlab/hub-extension": "~4.0.8",
+    "@jupyterlab/imageviewer-extension": "~4.0.8",
+    "@jupyterlab/inspector-extension": "~4.0.8",
+    "@jupyterlab/javascript-extension": "~4.0.8",
+    "@jupyterlab/json-extension": "~4.0.8",
+    "@jupyterlab/launcher-extension": "~4.0.8",
+    "@jupyterlab/logconsole-extension": "~4.0.8",
+    "@jupyterlab/lsp-extension": "~4.0.8",
+    "@jupyterlab/mainmenu-extension": "~4.0.8",
+    "@jupyterlab/markdownviewer-extension": "~4.0.8",
+    "@jupyterlab/markedparser-extension": "~4.0.8",
+    "@jupyterlab/mathjax-extension": "~4.0.8",
+    "@jupyterlab/metadataform-extension": "~4.0.8",
+    "@jupyterlab/notebook-extension": "~4.0.8",
+    "@jupyterlab/pdf-extension": "~4.0.8",
+    "@jupyterlab/rendermime-extension": "~4.0.8",
+    "@jupyterlab/running-extension": "~4.0.8",
+    "@jupyterlab/settingeditor-extension": "~4.0.8",
+    "@jupyterlab/shortcuts-extension": "~4.0.8",
+    "@jupyterlab/statusbar-extension": "~4.0.8",
+    "@jupyterlab/terminal-extension": "~4.0.8",
+    "@jupyterlab/theme-dark-extension": "~4.0.8",
+    "@jupyterlab/theme-light-extension": "~4.0.8",
+    "@jupyterlab/toc-extension": "~6.0.8",
+    "@jupyterlab/tooltip-extension": "~4.0.8",
+    "@jupyterlab/translation-extension": "~4.0.8",
+    "@jupyterlab/ui-components-extension": "~4.0.8",
+    "@jupyterlab/vega5-extension": "~4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6",
-    "@jupyterlab/buildutils": "^3.6.6",
+    "@jupyterlab/builder": "^4.0.8",
+    "@jupyterlab/buildutils": "^4.0.8",
     "chokidar": "^3.4.0",
-    "css-loader": "^5.0.1",
+    "css-loader": "^6.7.1",
     "duplicate-package-checker-webpack-plugin": "^3.0.0",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
     "handlebars": "^4.5.3",
     "html-loader": "~1.3.0",
-    "html-webpack-plugin": "^5.0.0-beta.6",
-    "license-webpack-plugin": "^2.3.14",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
+    "html-webpack-plugin": "^5.5.0",
+    "license-webpack-plugin": "^4.0.2",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "sort-package-json": "~1.44.0",
+    "sort-package-json": "~1.53.1",
     "source-map-loader": "~1.0.2",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "terser-webpack-plugin": "^4.1.0",
-    "url-loader": "~4.1.0",
-    "webpack": "^5.41.1",
-    "webpack-bundle-analyzer": "^3.6.0",
-    "webpack-cli": "^4.1.0",
-    "webpack-merge": "^5.1.2",
+    "style-loader": "~3.3.1",
+    "terser-webpack-plugin": "^5.3.7",
+    "webpack": "^5.76.1",
+    "webpack-bundle-analyzer": "^4.8.0",
+    "webpack-cli": "^5.0.1",
+    "webpack-merge": "^5.8.0",
     "whatwg-fetch": "^3.0.0",
-    "worker-loader": "^3.0.2",
-    "yarn-deduplicate": "^2.1.1"
+    "worker-loader": "^3.0.2"
   },
   "engines": {
-    "node": ">=12.0.0"
+    "node": ">=18.0.0"
   },
   "jupyterlab": {
     "name": "JupyterLab",
-    "version": "3.6.6",
+    "version": "4.0.8",
     "extensions": {
       "@jupyterlab/application-extension": "",
       "@jupyterlab/apputils-extension": "",
       "@jupyterlab/cell-toolbar-extension": "",
       "@jupyterlab/celltags-extension": "",
       "@jupyterlab/codemirror-extension": "",
-      "@jupyterlab/collaboration-extension": "",
       "@jupyterlab/completer-extension": "",
       "@jupyterlab/console-extension": "",
       "@jupyterlab/csvviewer-extension": "",
       "@jupyterlab/debugger-extension": "",
       "@jupyterlab/docmanager-extension": "",
-      "@jupyterlab/docprovider-extension": "",
       "@jupyterlab/documentsearch-extension": "",
       "@jupyterlab/extensionmanager-extension": "",
       "@jupyterlab/filebrowser-extension": "",
@@ -236,9 +235,12 @@
       "@jupyterlab/inspector-extension": "",
       "@jupyterlab/launcher-extension": "",
       "@jupyterlab/logconsole-extension": "",
+      "@jupyterlab/lsp-extension": "",
       "@jupyterlab/mainmenu-extension": "",
       "@jupyterlab/markdownviewer-extension": "",
-      "@jupyterlab/mathjax2-extension": "",
+      "@jupyterlab/markedparser-extension": "",
+      "@jupyterlab/mathjax-extension": "",
+      "@jupyterlab/metadataform-extension": "",
       "@jupyterlab/notebook-extension": "",
       "@jupyterlab/rendermime-extension": "",
       "@jupyterlab/running-extension": "",
@@ -251,8 +253,7 @@
       "@jupyterlab/toc-extension": "",
       "@jupyterlab/tooltip-extension": "",
       "@jupyterlab/translation-extension": "",
-      "@jupyterlab/ui-components-extension": "",
-      "@jupyterlab/vdom-extension": ""
+      "@jupyterlab/ui-components-extension": ""
     },
     "mimeExtensions": {
       "@jupyterlab/javascript-extension": "",
@@ -260,40 +261,42 @@
       "@jupyterlab/pdf-extension": "",
       "@jupyterlab/vega5-extension": ""
     },
-    "externalExtensions": {},
     "buildDir": "./build",
     "outputDir": "..",
     "singletonPackages": [
+      "@codemirror/language",
+      "@codemirror/state",
+      "@codemirror/view",
       "@jupyter/ydoc",
       "@jupyterlab/application",
       "@jupyterlab/apputils",
       "@jupyterlab/cell-toolbar",
       "@jupyterlab/codeeditor",
       "@jupyterlab/codemirror",
-      "@jupyterlab/collaboration",
       "@jupyterlab/completer",
       "@jupyterlab/console",
       "@jupyterlab/coreutils",
       "@jupyterlab/debugger",
       "@jupyterlab/docmanager",
-      "@jupyterlab/docprovider",
       "@jupyterlab/documentsearch",
       "@jupyterlab/extensionmanager",
       "@jupyterlab/filebrowser",
       "@jupyterlab/fileeditor",
+      "@jupyterlab/htmlviewer",
       "@jupyterlab/imageviewer",
       "@jupyterlab/inspector",
       "@jupyterlab/launcher",
       "@jupyterlab/logconsole",
+      "@jupyterlab/lsp",
       "@jupyterlab/mainmenu",
       "@jupyterlab/markdownviewer",
+      "@jupyterlab/metadataform",
       "@jupyterlab/notebook",
       "@jupyterlab/rendermime",
       "@jupyterlab/rendermime-interfaces",
       "@jupyterlab/services",
       "@jupyterlab/settingeditor",
       "@jupyterlab/settingregistry",
-      "@jupyterlab/shared-models",
       "@jupyterlab/statedb",
       "@jupyterlab/statusbar",
       "@jupyterlab/terminal",
@@ -301,14 +304,19 @@
       "@jupyterlab/tooltip",
       "@jupyterlab/translation",
       "@jupyterlab/ui-components",
+      "@lezer/common",
+      "@lezer/highlight",
       "@lumino/algorithm",
       "@lumino/application",
       "@lumino/commands",
       "@lumino/coreutils",
+      "@lumino/datagrid",
       "@lumino/disposable",
       "@lumino/domutils",
       "@lumino/dragdrop",
+      "@lumino/keyboard",
       "@lumino/messaging",
+      "@lumino/polling",
       "@lumino/properties",
       "@lumino/signaling",
       "@lumino/virtualdom",
diff --git a/jupyterlab/staging/templates/403.html b/jupyterlab/staging/templates/403.html
index 315515710e72..34a495a1a308 100644
--- a/jupyterlab/staging/templates/403.html
+++ b/jupyterlab/staging/templates/403.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
diff --git a/jupyterlab/staging/templates/partial.html b/jupyterlab/staging/templates/partial.html
index a3f368eaea74..3c44af54c52b 100644
--- a/jupyterlab/staging/templates/partial.html
+++ b/jupyterlab/staging/templates/partial.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 {# Copy so we do not modify the page_config with updates. #}
 {% set page_config_full = page_config.copy() %}
 
diff --git a/jupyterlab/staging/templates/template.html b/jupyterlab/staging/templates/template.html
index 167557d4fdda..6d17d790004d 100644
--- a/jupyterlab/staging/templates/template.html
+++ b/jupyterlab/staging/templates/template.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!doctype html>
 <html lang="en">
 <head>
diff --git a/jupyterlab/staging/webpack.config.js b/jupyterlab/staging/webpack.config.js
index ec58eec6986d..d93406758d8b 100644
--- a/jupyterlab/staging/webpack.config.js
+++ b/jupyterlab/staging/webpack.config.js
@@ -1,8 +1,8 @@
 // This file is auto-generated from the corresponding file in /dev_mode
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 const path = require('path');
 const fs = require('fs-extra');
@@ -10,8 +10,8 @@ const Handlebars = require('handlebars');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 const webpack = require('webpack');
 const merge = require('webpack-merge').default;
-const BundleAnalyzerPlugin = require('webpack-bundle-analyzer')
-  .BundleAnalyzerPlugin;
+const BundleAnalyzerPlugin =
+  require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 const baseConfig = require('@jupyterlab/builder/lib/webpack.config.base');
 const { ModuleFederationPlugin } = webpack.container;
 
@@ -21,21 +21,7 @@ const packageData = require('./package.json');
 
 // Handle the extensions.
 const jlab = packageData.jupyterlab;
-const { extensions, mimeExtensions, externalExtensions } = jlab;
-
-// Add external extensions to the extensions/mimeExtensions data as
-// appropriate
-for (const pkg in externalExtensions) {
-  const {
-    jupyterlab: { extension, mimeExtension }
-  } = require(`${pkg}/package.json`);
-  if (extension !== undefined) {
-    extensions[pkg] = extension === true ? '' : extension;
-  }
-  if (mimeExtension !== undefined) {
-    mimeExtensions[pkg] = mimeExtension === true ? '' : mimeExtension;
-  }
-}
+const { extensions, mimeExtensions } = jlab;
 
 // Deduplicated list of extension package names.
 const extensionPackages = [
@@ -300,15 +286,14 @@ module.exports = [
     output: {
       path: path.resolve(buildDir),
       publicPath: '{{page_config.fullStaticUrl}}/',
-      filename: '[name].[contenthash].js',
-      hashFunction: 'sha256'
+      filename: '[name].[contenthash].js'
     },
     optimization: {
       splitChunks: {
         chunks: 'all',
         cacheGroups: {
           jlab_core: {
-            test: /[\\/]node_modules[\\/]@(jupyterlab|lumino)[\\/]/,
+            test: /[\\/]node_modules[\\/]@(jupyterlab|lumino(?!\/datagrid))[\\/]/,
             name: 'jlab_core'
           }
         }
@@ -325,7 +310,7 @@ module.exports = [
       ]
     },
     devtool: 'inline-source-map',
-    externals: ['node-fetch', 'ws'],
+    externals: ['ws'],
     plugins
   })
 ].concat(extensionAssetConfig);
diff --git a/jupyterlab/staging/webpack.prod.config.js b/jupyterlab/staging/webpack.prod.config.js
index 49813391fc58..bb8c9b33cf57 100644
--- a/jupyterlab/staging/webpack.prod.config.js
+++ b/jupyterlab/staging/webpack.prod.config.js
@@ -1,4 +1,9 @@
 // This file is auto-generated from the corresponding file in /dev_mode
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const merge = require('webpack-merge').default;
 const config = require('./webpack.config');
 const WPPlugin = require('@jupyterlab/builder').WPPlugin;
diff --git a/jupyterlab/staging/webpack.prod.minimize.config.js b/jupyterlab/staging/webpack.prod.minimize.config.js
index c8d45a70338a..80bd2b5ad81a 100644
--- a/jupyterlab/staging/webpack.prod.minimize.config.js
+++ b/jupyterlab/staging/webpack.prod.minimize.config.js
@@ -1,4 +1,9 @@
 // This file is auto-generated from the corresponding file in /dev_mode
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const TerserPlugin = require('terser-webpack-plugin');
 const merge = require('webpack-merge').default;
 const WPPlugin = require('@jupyterlab/builder').WPPlugin;
@@ -17,7 +22,6 @@ config[0] = merge(config[0], {
     minimizer: [
       new TerserPlugin({
         parallel: true,
-        sourceMap: true,
         terserOptions: {
           compress: false,
           ecma: 6,
@@ -27,8 +31,7 @@ config[0] = merge(config[0], {
             comments: false
           },
           safari10: true
-        },
-        cache: process.platform !== 'win32'
+        }
       })
     ]
   },
diff --git a/jupyterlab/staging/webpack.prod.release.config.js b/jupyterlab/staging/webpack.prod.release.config.js
index 54f6a3834a59..060d39a835a4 100644
--- a/jupyterlab/staging/webpack.prod.release.config.js
+++ b/jupyterlab/staging/webpack.prod.release.config.js
@@ -1,4 +1,9 @@
 // This file is auto-generated from the corresponding file in /dev_mode
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const merge = require('webpack-merge').default;
 const config = require('./webpack.prod.minimize.config');
 
diff --git a/jupyterlab/staging/yarn.js b/jupyterlab/staging/yarn.js
old mode 100644
new mode 100755
index cc7214faac0c..093e64a9fe46
--- a/jupyterlab/staging/yarn.js
+++ b/jupyterlab/staging/yarn.js
@@ -1,147315 +1,873 @@
 #!/usr/bin/env node
-module.exports =
-/******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-/******/
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-/******/
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId]) {
-/******/ 			return installedModules[moduleId].exports;
-/******/ 		}
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			i: moduleId,
-/******/ 			l: false,
-/******/ 			exports: {}
-/******/ 		};
-/******/
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-/******/
-/******/ 		// Flag the module as loaded
-/******/ 		module.l = true;
-/******/
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-/******/
-/******/
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-/******/
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-/******/
-/******/ 	// identity function for calling harmony imports with the correct context
-/******/ 	__webpack_require__.i = function(value) { return value; };
-/******/
-/******/ 	// define getter function for harmony exports
-/******/ 	__webpack_require__.d = function(exports, name, getter) {
-/******/ 		if(!__webpack_require__.o(exports, name)) {
-/******/ 			Object.defineProperty(exports, name, {
-/******/ 				configurable: false,
-/******/ 				enumerable: true,
-/******/ 				get: getter
-/******/ 			});
-/******/ 		}
-/******/ 	};
-/******/
-/******/ 	// getDefaultExport function for compatibility with non-harmony modules
-/******/ 	__webpack_require__.n = function(module) {
-/******/ 		var getter = module && module.__esModule ?
-/******/ 			function getDefault() { return module['default']; } :
-/******/ 			function getModuleExports() { return module; };
-/******/ 		__webpack_require__.d(getter, 'a', getter);
-/******/ 		return getter;
-/******/ 	};
-/******/
-/******/ 	// Object.prototype.hasOwnProperty.call
-/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
-/******/
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
-/******/
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(__webpack_require__.s = 549);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ (function(module, exports) {
-
-module.exports = require("path");
-
-/***/ }),
-/* 1 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = __extends;
-/* unused harmony export __assign */
-/* unused harmony export __rest */
-/* unused harmony export __decorate */
-/* unused harmony export __param */
-/* unused harmony export __metadata */
-/* unused harmony export __awaiter */
-/* unused harmony export __generator */
-/* unused harmony export __exportStar */
-/* unused harmony export __values */
-/* unused harmony export __read */
-/* unused harmony export __spread */
-/* unused harmony export __await */
-/* unused harmony export __asyncGenerator */
-/* unused harmony export __asyncDelegator */
-/* unused harmony export __asyncValues */
-/* unused harmony export __makeTemplateObject */
-/* unused harmony export __importStar */
-/* unused harmony export __importDefault */
-/*! *****************************************************************************
-Copyright (c) Microsoft Corporation. All rights reserved.
-Licensed under the Apache License, Version 2.0 (the "License"); you may not use
-this file except in compliance with the License. You may obtain a copy of the
-License at http://www.apache.org/licenses/LICENSE-2.0
-
-THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
-MERCHANTABLITY OR NON-INFRINGEMENT.
-
-See the Apache Version 2.0 License for specific language governing permissions
-and limitations under the License.
-***************************************************************************** */
-/* global Reflect, Promise */
-
-var extendStatics = function(d, b) {
-    extendStatics = Object.setPrototypeOf ||
-        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-    return extendStatics(d, b);
-};
-
-function __extends(d, b) {
-    extendStatics(d, b);
-    function __() { this.constructor = d; }
-    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-}
-
-var __assign = function() {
-    __assign = Object.assign || function __assign(t) {
-        for (var s, i = 1, n = arguments.length; i < n; i++) {
-            s = arguments[i];
-            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
-        }
-        return t;
-    }
-    return __assign.apply(this, arguments);
-}
-
-function __rest(s, e) {
-    var t = {};
-    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
-        t[p] = s[p];
-    if (s != null && typeof Object.getOwnPropertySymbols === "function")
-        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) if (e.indexOf(p[i]) < 0)
-            t[p[i]] = s[p[i]];
-    return t;
-}
-
-function __decorate(decorators, target, key, desc) {
-    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
-    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
-    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
-    return c > 3 && r && Object.defineProperty(target, key, r), r;
-}
-
-function __param(paramIndex, decorator) {
-    return function (target, key) { decorator(target, key, paramIndex); }
-}
-
-function __metadata(metadataKey, metadataValue) {
-    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(metadataKey, metadataValue);
-}
-
-function __awaiter(thisArg, _arguments, P, generator) {
-    return new (P || (P = Promise))(function (resolve, reject) {
-        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
-        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
-        function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
-        step((generator = generator.apply(thisArg, _arguments || [])).next());
-    });
-}
-
-function __generator(thisArg, body) {
-    var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
-    return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
-    function verb(n) { return function (v) { return step([n, v]); }; }
-    function step(op) {
-        if (f) throw new TypeError("Generator is already executing.");
-        while (_) try {
-            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
-            if (y = 0, t) op = [op[0] & 2, t.value];
-            switch (op[0]) {
-                case 0: case 1: t = op; break;
-                case 4: _.label++; return { value: op[1], done: false };
-                case 5: _.label++; y = op[1]; op = [0]; continue;
-                case 7: op = _.ops.pop(); _.trys.pop(); continue;
-                default:
-                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
-                    if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
-                    if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
-                    if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
-                    if (t[2]) _.ops.pop();
-                    _.trys.pop(); continue;
-            }
-            op = body.call(thisArg, _);
-        } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
-        if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
-    }
-}
-
-function __exportStar(m, exports) {
-    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
-}
-
-function __values(o) {
-    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
-    if (m) return m.call(o);
-    return {
-        next: function () {
-            if (o && i >= o.length) o = void 0;
-            return { value: o && o[i++], done: !o };
-        }
-    };
-}
-
-function __read(o, n) {
-    var m = typeof Symbol === "function" && o[Symbol.iterator];
-    if (!m) return o;
-    var i = m.call(o), r, ar = [], e;
-    try {
-        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
-    }
-    catch (error) { e = { error: error }; }
-    finally {
-        try {
-            if (r && !r.done && (m = i["return"])) m.call(i);
-        }
-        finally { if (e) throw e.error; }
-    }
-    return ar;
-}
-
-function __spread() {
-    for (var ar = [], i = 0; i < arguments.length; i++)
-        ar = ar.concat(__read(arguments[i]));
-    return ar;
-}
-
-function __await(v) {
-    return this instanceof __await ? (this.v = v, this) : new __await(v);
-}
-
-function __asyncGenerator(thisArg, _arguments, generator) {
-    if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
-    var g = generator.apply(thisArg, _arguments || []), i, q = [];
-    return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
-    function verb(n) { if (g[n]) i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
-    function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
-    function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
-    function fulfill(value) { resume("next", value); }
-    function reject(value) { resume("throw", value); }
-    function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
-}
-
-function __asyncDelegator(o) {
-    var i, p;
-    return i = {}, verb("next"), verb("throw", function (e) { throw e; }), verb("return"), i[Symbol.iterator] = function () { return this; }, i;
-    function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === "return" } : f ? f(v) : v; } : f; }
-}
-
-function __asyncValues(o) {
-    if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
-    var m = o[Symbol.asyncIterator], i;
-    return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
-    function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
-    function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
-}
-
-function __makeTemplateObject(cooked, raw) {
-    if (Object.defineProperty) { Object.defineProperty(cooked, "raw", { value: raw }); } else { cooked.raw = raw; }
-    return cooked;
-};
-
-function __importStar(mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
-    result.default = mod;
-    return result;
-}
-
-function __importDefault(mod) {
-    return (mod && mod.__esModule) ? mod : { default: mod };
-}
-
-
-/***/ }),
-/* 2 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-exports.__esModule = true;
-
-var _promise = __webpack_require__(227);
-
-var _promise2 = _interopRequireDefault(_promise);
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-exports.default = function (fn) {
-  return function () {
-    var gen = fn.apply(this, arguments);
-    return new _promise2.default(function (resolve, reject) {
-      function step(key, arg) {
-        try {
-          var info = gen[key](arg);
-          var value = info.value;
-        } catch (error) {
-          reject(error);
-          return;
-        }
-
-        if (info.done) {
-          resolve(value);
-        } else {
-          return _promise2.default.resolve(value).then(function (value) {
-            step("next", value);
-          }, function (err) {
-            step("throw", err);
-          });
-        }
-      }
-
-      return step("next");
-    });
-  };
-};
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports) {
-
-module.exports = require("util");
-
-/***/ }),
-/* 4 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getFirstSuitableFolder = exports.readFirstAvailableStream = exports.makeTempDir = exports.hardlinksWork = exports.writeFilePreservingEol = exports.getFileSizeOnDisk = exports.walk = exports.symlink = exports.find = exports.readJsonAndFile = exports.readJson = exports.readFileAny = exports.hardlinkBulk = exports.copyBulk = exports.unlink = exports.glob = exports.link = exports.chmod = exports.lstat = exports.exists = exports.mkdirp = exports.stat = exports.access = exports.rename = exports.readdir = exports.realpath = exports.readlink = exports.writeFile = exports.open = exports.readFileBuffer = exports.lockQueue = exports.constants = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let buildActionsForCopy = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (queue, events, possibleExtraneous, reporter) {
-
-    //
-    let build = (() => {
-      var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (data) {
-        const src = data.src,
-              dest = data.dest,
-              type = data.type;
-
-        const onFresh = data.onFresh || noop;
-        const onDone = data.onDone || noop;
-
-        // TODO https://github.com/yarnpkg/yarn/issues/3751
-        // related to bundled dependencies handling
-        if (files.has(dest.toLowerCase())) {
-          reporter.verbose(`The case-insensitive file ${dest} shouldn't be copied twice in one bulk copy`);
-        } else {
-          files.add(dest.toLowerCase());
-        }
-
-        if (type === 'symlink') {
-          yield mkdirp((_path || _load_path()).default.dirname(dest));
-          onFresh();
-          actions.symlink.push({
-            dest,
-            linkname: src
-          });
-          onDone();
-          return;
-        }
-
-        if (events.ignoreBasenames.indexOf((_path || _load_path()).default.basename(src)) >= 0) {
-          // ignored file
-          return;
-        }
-
-        const srcStat = yield lstat(src);
-        let srcFiles;
-
-        if (srcStat.isDirectory()) {
-          srcFiles = yield readdir(src);
-        }
-
-        let destStat;
-        try {
-          // try accessing the destination
-          destStat = yield lstat(dest);
-        } catch (e) {
-          // proceed if destination doesn't exist, otherwise error
-          if (e.code !== 'ENOENT') {
-            throw e;
-          }
-        }
-
-        // if destination exists
-        if (destStat) {
-          const bothSymlinks = srcStat.isSymbolicLink() && destStat.isSymbolicLink();
-          const bothFolders = srcStat.isDirectory() && destStat.isDirectory();
-          const bothFiles = srcStat.isFile() && destStat.isFile();
-
-          // EINVAL access errors sometimes happen which shouldn't because node shouldn't be giving
-          // us modes that aren't valid. investigate this, it's generally safe to proceed.
-
-          /* if (srcStat.mode !== destStat.mode) {
-            try {
-              await access(dest, srcStat.mode);
-            } catch (err) {}
-          } */
-
-          if (bothFiles && artifactFiles.has(dest)) {
-            // this file gets changed during build, likely by a custom install script. Don't bother checking it.
-            onDone();
-            reporter.verbose(reporter.lang('verboseFileSkipArtifact', src));
-            return;
-          }
-
-          if (bothFiles && srcStat.size === destStat.size && (0, (_fsNormalized || _load_fsNormalized()).fileDatesEqual)(srcStat.mtime, destStat.mtime)) {
-            // we can safely assume this is the same file
-            onDone();
-            reporter.verbose(reporter.lang('verboseFileSkip', src, dest, srcStat.size, +srcStat.mtime));
-            return;
-          }
-
-          if (bothSymlinks) {
-            const srcReallink = yield readlink(src);
-            if (srcReallink === (yield readlink(dest))) {
-              // if both symlinks are the same then we can continue on
-              onDone();
-              reporter.verbose(reporter.lang('verboseFileSkipSymlink', src, dest, srcReallink));
-              return;
-            }
-          }
-
-          if (bothFolders) {
-            // mark files that aren't in this folder as possibly extraneous
-            const destFiles = yield readdir(dest);
-            invariant(srcFiles, 'src files not initialised');
-
-            for (var _iterator4 = destFiles, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-              var _ref6;
-
-              if (_isArray4) {
-                if (_i4 >= _iterator4.length) break;
-                _ref6 = _iterator4[_i4++];
-              } else {
-                _i4 = _iterator4.next();
-                if (_i4.done) break;
-                _ref6 = _i4.value;
-              }
-
-              const file = _ref6;
-
-              if (srcFiles.indexOf(file) < 0) {
-                const loc = (_path || _load_path()).default.join(dest, file);
-                possibleExtraneous.add(loc);
-
-                if ((yield lstat(loc)).isDirectory()) {
-                  for (var _iterator5 = yield readdir(loc), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-                    var _ref7;
-
-                    if (_isArray5) {
-                      if (_i5 >= _iterator5.length) break;
-                      _ref7 = _iterator5[_i5++];
-                    } else {
-                      _i5 = _iterator5.next();
-                      if (_i5.done) break;
-                      _ref7 = _i5.value;
-                    }
-
-                    const file = _ref7;
-
-                    possibleExtraneous.add((_path || _load_path()).default.join(loc, file));
-                  }
-                }
-              }
-            }
-          }
-        }
-
-        if (destStat && destStat.isSymbolicLink()) {
-          yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(dest);
-          destStat = null;
-        }
-
-        if (srcStat.isSymbolicLink()) {
-          onFresh();
-          const linkname = yield readlink(src);
-          actions.symlink.push({
-            dest,
-            linkname
-          });
-          onDone();
-        } else if (srcStat.isDirectory()) {
-          if (!destStat) {
-            reporter.verbose(reporter.lang('verboseFileFolder', dest));
-            yield mkdirp(dest);
-          }
-
-          const destParts = dest.split((_path || _load_path()).default.sep);
-          while (destParts.length) {
-            files.add(destParts.join((_path || _load_path()).default.sep).toLowerCase());
-            destParts.pop();
-          }
-
-          // push all files to queue
-          invariant(srcFiles, 'src files not initialised');
-          let remaining = srcFiles.length;
-          if (!remaining) {
-            onDone();
-          }
-          for (var _iterator6 = srcFiles, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-            var _ref8;
-
-            if (_isArray6) {
-              if (_i6 >= _iterator6.length) break;
-              _ref8 = _iterator6[_i6++];
-            } else {
-              _i6 = _iterator6.next();
-              if (_i6.done) break;
-              _ref8 = _i6.value;
-            }
-
-            const file = _ref8;
-
-            queue.push({
-              dest: (_path || _load_path()).default.join(dest, file),
-              onFresh,
-              onDone: function (_onDone) {
-                function onDone() {
-                  return _onDone.apply(this, arguments);
-                }
-
-                onDone.toString = function () {
-                  return _onDone.toString();
-                };
-
-                return onDone;
-              }(function () {
-                if (--remaining === 0) {
-                  onDone();
-                }
-              }),
-              src: (_path || _load_path()).default.join(src, file)
-            });
-          }
-        } else if (srcStat.isFile()) {
-          onFresh();
-          actions.file.push({
-            src,
-            dest,
-            atime: srcStat.atime,
-            mtime: srcStat.mtime,
-            mode: srcStat.mode
-          });
-          onDone();
-        } else {
-          throw new Error(`unsure how to copy this: ${src}`);
-        }
-      });
-
-      return function build(_x5) {
-        return _ref5.apply(this, arguments);
-      };
-    })();
-
-    const artifactFiles = new Set(events.artifactFiles || []);
-    const files = new Set();
-
-    // initialise events
-    for (var _iterator = queue, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const item = _ref2;
-
-      const onDone = item.onDone;
-      item.onDone = function () {
-        events.onProgress(item.dest);
-        if (onDone) {
-          onDone();
-        }
-      };
-    }
-    events.onStart(queue.length);
-
-    // start building actions
-    const actions = {
-      file: [],
-      symlink: [],
-      link: []
-    };
-
-    // custom concurrency logic as we're always executing stacks of CONCURRENT_QUEUE_ITEMS queue items
-    // at a time due to the requirement to push items onto the queue
-    while (queue.length) {
-      const items = queue.splice(0, CONCURRENT_QUEUE_ITEMS);
-      yield Promise.all(items.map(build));
-    }
-
-    // simulate the existence of some files to prevent considering them extraneous
-    for (var _iterator2 = artifactFiles, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref3 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref3 = _i2.value;
-      }
-
-      const file = _ref3;
-
-      if (possibleExtraneous.has(file)) {
-        reporter.verbose(reporter.lang('verboseFilePhantomExtraneous', file));
-        possibleExtraneous.delete(file);
-      }
-    }
-
-    for (var _iterator3 = possibleExtraneous, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref4 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref4 = _i3.value;
-      }
-
-      const loc = _ref4;
-
-      if (files.has(loc.toLowerCase())) {
-        possibleExtraneous.delete(loc);
-      }
-    }
-
-    return actions;
-  });
-
-  return function buildActionsForCopy(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let buildActionsForHardlink = (() => {
-  var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (queue, events, possibleExtraneous, reporter) {
-
-    //
-    let build = (() => {
-      var _ref13 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (data) {
-        const src = data.src,
-              dest = data.dest;
-
-        const onFresh = data.onFresh || noop;
-        const onDone = data.onDone || noop;
-        if (files.has(dest.toLowerCase())) {
-          // Fixes issue https://github.com/yarnpkg/yarn/issues/2734
-          // When bulk hardlinking we have A -> B structure that we want to hardlink to A1 -> B1,
-          // package-linker passes that modules A1 and B1 need to be hardlinked,
-          // the recursive linking algorithm of A1 ends up scheduling files in B1 to be linked twice which will case
-          // an exception.
-          onDone();
-          return;
-        }
-        files.add(dest.toLowerCase());
-
-        if (events.ignoreBasenames.indexOf((_path || _load_path()).default.basename(src)) >= 0) {
-          // ignored file
-          return;
-        }
-
-        const srcStat = yield lstat(src);
-        let srcFiles;
-
-        if (srcStat.isDirectory()) {
-          srcFiles = yield readdir(src);
-        }
-
-        const destExists = yield exists(dest);
-        if (destExists) {
-          const destStat = yield lstat(dest);
-
-          const bothSymlinks = srcStat.isSymbolicLink() && destStat.isSymbolicLink();
-          const bothFolders = srcStat.isDirectory() && destStat.isDirectory();
-          const bothFiles = srcStat.isFile() && destStat.isFile();
-
-          if (srcStat.mode !== destStat.mode) {
-            try {
-              yield access(dest, srcStat.mode);
-            } catch (err) {
-              // EINVAL access errors sometimes happen which shouldn't because node shouldn't be giving
-              // us modes that aren't valid. investigate this, it's generally safe to proceed.
-              reporter.verbose(err);
-            }
-          }
-
-          if (bothFiles && artifactFiles.has(dest)) {
-            // this file gets changed during build, likely by a custom install script. Don't bother checking it.
-            onDone();
-            reporter.verbose(reporter.lang('verboseFileSkipArtifact', src));
-            return;
-          }
-
-          // correct hardlink
-          if (bothFiles && srcStat.ino !== null && srcStat.ino === destStat.ino) {
-            onDone();
-            reporter.verbose(reporter.lang('verboseFileSkip', src, dest, srcStat.ino));
-            return;
-          }
-
-          if (bothSymlinks) {
-            const srcReallink = yield readlink(src);
-            if (srcReallink === (yield readlink(dest))) {
-              // if both symlinks are the same then we can continue on
-              onDone();
-              reporter.verbose(reporter.lang('verboseFileSkipSymlink', src, dest, srcReallink));
-              return;
-            }
-          }
-
-          if (bothFolders) {
-            // mark files that aren't in this folder as possibly extraneous
-            const destFiles = yield readdir(dest);
-            invariant(srcFiles, 'src files not initialised');
-
-            for (var _iterator10 = destFiles, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-              var _ref14;
-
-              if (_isArray10) {
-                if (_i10 >= _iterator10.length) break;
-                _ref14 = _iterator10[_i10++];
-              } else {
-                _i10 = _iterator10.next();
-                if (_i10.done) break;
-                _ref14 = _i10.value;
-              }
-
-              const file = _ref14;
-
-              if (srcFiles.indexOf(file) < 0) {
-                const loc = (_path || _load_path()).default.join(dest, file);
-                possibleExtraneous.add(loc);
-
-                if ((yield lstat(loc)).isDirectory()) {
-                  for (var _iterator11 = yield readdir(loc), _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-                    var _ref15;
-
-                    if (_isArray11) {
-                      if (_i11 >= _iterator11.length) break;
-                      _ref15 = _iterator11[_i11++];
-                    } else {
-                      _i11 = _iterator11.next();
-                      if (_i11.done) break;
-                      _ref15 = _i11.value;
-                    }
-
-                    const file = _ref15;
-
-                    possibleExtraneous.add((_path || _load_path()).default.join(loc, file));
-                  }
-                }
-              }
-            }
-          }
-        }
-
-        if (srcStat.isSymbolicLink()) {
-          onFresh();
-          const linkname = yield readlink(src);
-          actions.symlink.push({
-            dest,
-            linkname
-          });
-          onDone();
-        } else if (srcStat.isDirectory()) {
-          reporter.verbose(reporter.lang('verboseFileFolder', dest));
-          yield mkdirp(dest);
-
-          const destParts = dest.split((_path || _load_path()).default.sep);
-          while (destParts.length) {
-            files.add(destParts.join((_path || _load_path()).default.sep).toLowerCase());
-            destParts.pop();
-          }
-
-          // push all files to queue
-          invariant(srcFiles, 'src files not initialised');
-          let remaining = srcFiles.length;
-          if (!remaining) {
-            onDone();
-          }
-          for (var _iterator12 = srcFiles, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-            var _ref16;
-
-            if (_isArray12) {
-              if (_i12 >= _iterator12.length) break;
-              _ref16 = _iterator12[_i12++];
-            } else {
-              _i12 = _iterator12.next();
-              if (_i12.done) break;
-              _ref16 = _i12.value;
-            }
-
-            const file = _ref16;
-
-            queue.push({
-              onFresh,
-              src: (_path || _load_path()).default.join(src, file),
-              dest: (_path || _load_path()).default.join(dest, file),
-              onDone: function (_onDone2) {
-                function onDone() {
-                  return _onDone2.apply(this, arguments);
-                }
-
-                onDone.toString = function () {
-                  return _onDone2.toString();
-                };
-
-                return onDone;
-              }(function () {
-                if (--remaining === 0) {
-                  onDone();
-                }
-              })
-            });
-          }
-        } else if (srcStat.isFile()) {
-          onFresh();
-          actions.link.push({
-            src,
-            dest,
-            removeDest: destExists
-          });
-          onDone();
-        } else {
-          throw new Error(`unsure how to copy this: ${src}`);
-        }
-      });
-
-      return function build(_x10) {
-        return _ref13.apply(this, arguments);
-      };
-    })();
-
-    const artifactFiles = new Set(events.artifactFiles || []);
-    const files = new Set();
-
-    // initialise events
-    for (var _iterator7 = queue, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-      var _ref10;
-
-      if (_isArray7) {
-        if (_i7 >= _iterator7.length) break;
-        _ref10 = _iterator7[_i7++];
-      } else {
-        _i7 = _iterator7.next();
-        if (_i7.done) break;
-        _ref10 = _i7.value;
-      }
-
-      const item = _ref10;
-
-      const onDone = item.onDone || noop;
-      item.onDone = function () {
-        events.onProgress(item.dest);
-        onDone();
-      };
-    }
-    events.onStart(queue.length);
-
-    // start building actions
-    const actions = {
-      file: [],
-      symlink: [],
-      link: []
-    };
-
-    // custom concurrency logic as we're always executing stacks of CONCURRENT_QUEUE_ITEMS queue items
-    // at a time due to the requirement to push items onto the queue
-    while (queue.length) {
-      const items = queue.splice(0, CONCURRENT_QUEUE_ITEMS);
-      yield Promise.all(items.map(build));
-    }
-
-    // simulate the existence of some files to prevent considering them extraneous
-    for (var _iterator8 = artifactFiles, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray8) {
-        if (_i8 >= _iterator8.length) break;
-        _ref11 = _iterator8[_i8++];
-      } else {
-        _i8 = _iterator8.next();
-        if (_i8.done) break;
-        _ref11 = _i8.value;
-      }
-
-      const file = _ref11;
-
-      if (possibleExtraneous.has(file)) {
-        reporter.verbose(reporter.lang('verboseFilePhantomExtraneous', file));
-        possibleExtraneous.delete(file);
-      }
-    }
-
-    for (var _iterator9 = possibleExtraneous, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-      var _ref12;
-
-      if (_isArray9) {
-        if (_i9 >= _iterator9.length) break;
-        _ref12 = _iterator9[_i9++];
-      } else {
-        _i9 = _iterator9.next();
-        if (_i9.done) break;
-        _ref12 = _i9.value;
-      }
-
-      const loc = _ref12;
-
-      if (files.has(loc.toLowerCase())) {
-        possibleExtraneous.delete(loc);
-      }
-    }
-
-    return actions;
-  });
-
-  return function buildActionsForHardlink(_x6, _x7, _x8, _x9) {
-    return _ref9.apply(this, arguments);
-  };
-})();
-
-let copyBulk = exports.copyBulk = (() => {
-  var _ref17 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (queue, reporter, _events) {
-    const events = {
-      onStart: _events && _events.onStart || noop,
-      onProgress: _events && _events.onProgress || noop,
-      possibleExtraneous: _events ? _events.possibleExtraneous : new Set(),
-      ignoreBasenames: _events && _events.ignoreBasenames || [],
-      artifactFiles: _events && _events.artifactFiles || []
-    };
-
-    const actions = yield buildActionsForCopy(queue, events, events.possibleExtraneous, reporter);
-    events.onStart(actions.file.length + actions.symlink.length + actions.link.length);
-
-    const fileActions = actions.file;
-
-    const currentlyWriting = new Map();
-
-    yield (_promise || _load_promise()).queue(fileActions, (() => {
-      var _ref18 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (data) {
-        let writePromise;
-        while (writePromise = currentlyWriting.get(data.dest)) {
-          yield writePromise;
-        }
-
-        reporter.verbose(reporter.lang('verboseFileCopy', data.src, data.dest));
-        const copier = (0, (_fsNormalized || _load_fsNormalized()).copyFile)(data, function () {
-          return currentlyWriting.delete(data.dest);
-        });
-        currentlyWriting.set(data.dest, copier);
-        events.onProgress(data.dest);
-        return copier;
-      });
-
-      return function (_x14) {
-        return _ref18.apply(this, arguments);
-      };
-    })(), CONCURRENT_QUEUE_ITEMS);
-
-    // we need to copy symlinks last as they could reference files we were copying
-    const symlinkActions = actions.symlink;
-    yield (_promise || _load_promise()).queue(symlinkActions, function (data) {
-      const linkname = (_path || _load_path()).default.resolve((_path || _load_path()).default.dirname(data.dest), data.linkname);
-      reporter.verbose(reporter.lang('verboseFileSymlink', data.dest, linkname));
-      return symlink(linkname, data.dest);
-    });
-  });
-
-  return function copyBulk(_x11, _x12, _x13) {
-    return _ref17.apply(this, arguments);
-  };
-})();
-
-let hardlinkBulk = exports.hardlinkBulk = (() => {
-  var _ref19 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (queue, reporter, _events) {
-    const events = {
-      onStart: _events && _events.onStart || noop,
-      onProgress: _events && _events.onProgress || noop,
-      possibleExtraneous: _events ? _events.possibleExtraneous : new Set(),
-      artifactFiles: _events && _events.artifactFiles || [],
-      ignoreBasenames: []
-    };
-
-    const actions = yield buildActionsForHardlink(queue, events, events.possibleExtraneous, reporter);
-    events.onStart(actions.file.length + actions.symlink.length + actions.link.length);
-
-    const fileActions = actions.link;
-
-    yield (_promise || _load_promise()).queue(fileActions, (() => {
-      var _ref20 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (data) {
-        reporter.verbose(reporter.lang('verboseFileLink', data.src, data.dest));
-        if (data.removeDest) {
-          yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(data.dest);
-        }
-        yield link(data.src, data.dest);
-      });
-
-      return function (_x18) {
-        return _ref20.apply(this, arguments);
-      };
-    })(), CONCURRENT_QUEUE_ITEMS);
-
-    // we need to copy symlinks last as they could reference files we were copying
-    const symlinkActions = actions.symlink;
-    yield (_promise || _load_promise()).queue(symlinkActions, function (data) {
-      const linkname = (_path || _load_path()).default.resolve((_path || _load_path()).default.dirname(data.dest), data.linkname);
-      reporter.verbose(reporter.lang('verboseFileSymlink', data.dest, linkname));
-      return symlink(linkname, data.dest);
-    });
-  });
-
-  return function hardlinkBulk(_x15, _x16, _x17) {
-    return _ref19.apply(this, arguments);
-  };
-})();
-
-let readFileAny = exports.readFileAny = (() => {
-  var _ref21 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (files) {
-    for (var _iterator13 = files, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : _iterator13[Symbol.iterator]();;) {
-      var _ref22;
-
-      if (_isArray13) {
-        if (_i13 >= _iterator13.length) break;
-        _ref22 = _iterator13[_i13++];
-      } else {
-        _i13 = _iterator13.next();
-        if (_i13.done) break;
-        _ref22 = _i13.value;
-      }
-
-      const file = _ref22;
-
-      if (yield exists(file)) {
-        return readFile(file);
-      }
-    }
-    return null;
-  });
-
-  return function readFileAny(_x19) {
-    return _ref21.apply(this, arguments);
-  };
-})();
-
-let readJson = exports.readJson = (() => {
-  var _ref23 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-    return (yield readJsonAndFile(loc)).object;
-  });
-
-  return function readJson(_x20) {
-    return _ref23.apply(this, arguments);
-  };
-})();
-
-let readJsonAndFile = exports.readJsonAndFile = (() => {
-  var _ref24 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-    const file = yield readFile(loc);
-    try {
-      return {
-        object: (0, (_map || _load_map()).default)(JSON.parse(stripBOM(file))),
-        content: file
-      };
-    } catch (err) {
-      err.message = `${loc}: ${err.message}`;
-      throw err;
-    }
-  });
-
-  return function readJsonAndFile(_x21) {
-    return _ref24.apply(this, arguments);
-  };
-})();
-
-let find = exports.find = (() => {
-  var _ref25 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (filename, dir) {
-    const parts = dir.split((_path || _load_path()).default.sep);
-
-    while (parts.length) {
-      const loc = parts.concat(filename).join((_path || _load_path()).default.sep);
-
-      if (yield exists(loc)) {
-        return loc;
-      } else {
-        parts.pop();
-      }
-    }
-
-    return false;
-  });
-
-  return function find(_x22, _x23) {
-    return _ref25.apply(this, arguments);
-  };
-})();
-
-let symlink = exports.symlink = (() => {
-  var _ref26 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (src, dest) {
-    if (process.platform !== 'win32') {
-      // use relative paths otherwise which will be retained if the directory is moved
-      src = (_path || _load_path()).default.relative((_path || _load_path()).default.dirname(dest), src);
-      // When path.relative returns an empty string for the current directory, we should instead use
-      // '.', which is a valid fs.symlink target.
-      src = src || '.';
-    }
-
-    try {
-      const stats = yield lstat(dest);
-      if (stats.isSymbolicLink()) {
-        const resolved = dest;
-        if (resolved === src) {
-          return;
-        }
-      }
-    } catch (err) {
-      if (err.code !== 'ENOENT') {
-        throw err;
-      }
-    }
-
-    // We use rimraf for unlink which never throws an ENOENT on missing target
-    yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(dest);
-
-    if (process.platform === 'win32') {
-      // use directory junctions if possible on win32, this requires absolute paths
-      yield fsSymlink(src, dest, 'junction');
-    } else {
-      yield fsSymlink(src, dest);
-    }
-  });
-
-  return function symlink(_x24, _x25) {
-    return _ref26.apply(this, arguments);
-  };
-})();
-
-let walk = exports.walk = (() => {
-  var _ref27 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (dir, relativeDir, ignoreBasenames = new Set()) {
-    let files = [];
-
-    let filenames = yield readdir(dir);
-    if (ignoreBasenames.size) {
-      filenames = filenames.filter(function (name) {
-        return !ignoreBasenames.has(name);
-      });
-    }
-
-    for (var _iterator14 = filenames, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : _iterator14[Symbol.iterator]();;) {
-      var _ref28;
-
-      if (_isArray14) {
-        if (_i14 >= _iterator14.length) break;
-        _ref28 = _iterator14[_i14++];
-      } else {
-        _i14 = _iterator14.next();
-        if (_i14.done) break;
-        _ref28 = _i14.value;
-      }
-
-      const name = _ref28;
-
-      const relative = relativeDir ? (_path || _load_path()).default.join(relativeDir, name) : name;
-      const loc = (_path || _load_path()).default.join(dir, name);
-      const stat = yield lstat(loc);
-
-      files.push({
-        relative,
-        basename: name,
-        absolute: loc,
-        mtime: +stat.mtime
-      });
-
-      if (stat.isDirectory()) {
-        files = files.concat((yield walk(loc, relative, ignoreBasenames)));
-      }
-    }
-
-    return files;
-  });
-
-  return function walk(_x26, _x27) {
-    return _ref27.apply(this, arguments);
-  };
-})();
-
-let getFileSizeOnDisk = exports.getFileSizeOnDisk = (() => {
-  var _ref29 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-    const stat = yield lstat(loc);
-    const size = stat.size,
-          blockSize = stat.blksize;
-
-
-    return Math.ceil(size / blockSize) * blockSize;
-  });
-
-  return function getFileSizeOnDisk(_x28) {
-    return _ref29.apply(this, arguments);
-  };
-})();
-
-let getEolFromFile = (() => {
-  var _ref30 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (path) {
-    if (!(yield exists(path))) {
-      return undefined;
-    }
-
-    const buffer = yield readFileBuffer(path);
-
-    for (let i = 0; i < buffer.length; ++i) {
-      if (buffer[i] === cr) {
-        return '\r\n';
-      }
-      if (buffer[i] === lf) {
-        return '\n';
-      }
-    }
-    return undefined;
-  });
-
-  return function getEolFromFile(_x29) {
-    return _ref30.apply(this, arguments);
-  };
-})();
-
-let writeFilePreservingEol = exports.writeFilePreservingEol = (() => {
-  var _ref31 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (path, data) {
-    const eol = (yield getEolFromFile(path)) || (_os || _load_os()).default.EOL;
-    if (eol !== '\n') {
-      data = data.replace(/\n/g, eol);
-    }
-    yield writeFile(path, data);
-  });
-
-  return function writeFilePreservingEol(_x30, _x31) {
-    return _ref31.apply(this, arguments);
-  };
-})();
-
-let hardlinksWork = exports.hardlinksWork = (() => {
-  var _ref32 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (dir) {
-    const filename = 'test-file' + Math.random();
-    const file = (_path || _load_path()).default.join(dir, filename);
-    const fileLink = (_path || _load_path()).default.join(dir, filename + '-link');
-    try {
-      yield writeFile(file, 'test');
-      yield link(file, fileLink);
-    } catch (err) {
-      return false;
-    } finally {
-      yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(file);
-      yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(fileLink);
-    }
-    return true;
-  });
-
-  return function hardlinksWork(_x32) {
-    return _ref32.apply(this, arguments);
-  };
-})();
-
-// not a strict polyfill for Node's fs.mkdtemp
-
-
-let makeTempDir = exports.makeTempDir = (() => {
-  var _ref33 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (prefix) {
-    const dir = (_path || _load_path()).default.join((_os || _load_os()).default.tmpdir(), `yarn-${prefix || ''}-${Date.now()}-${Math.random()}`);
-    yield (0, (_fsNormalized || _load_fsNormalized()).unlink)(dir);
-    yield mkdirp(dir);
-    return dir;
-  });
-
-  return function makeTempDir(_x33) {
-    return _ref33.apply(this, arguments);
-  };
-})();
-
-let readFirstAvailableStream = exports.readFirstAvailableStream = (() => {
-  var _ref34 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (paths) {
-    for (var _iterator15 = paths, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : _iterator15[Symbol.iterator]();;) {
-      var _ref35;
-
-      if (_isArray15) {
-        if (_i15 >= _iterator15.length) break;
-        _ref35 = _iterator15[_i15++];
-      } else {
-        _i15 = _iterator15.next();
-        if (_i15.done) break;
-        _ref35 = _i15.value;
-      }
-
-      const path = _ref35;
-
-      try {
-        const fd = yield open(path, 'r');
-        return (_fs || _load_fs()).default.createReadStream(path, { fd });
-      } catch (err) {
-        // Try the next one
-      }
-    }
-    return null;
-  });
-
-  return function readFirstAvailableStream(_x34) {
-    return _ref34.apply(this, arguments);
-  };
-})();
-
-let getFirstSuitableFolder = exports.getFirstSuitableFolder = (() => {
-  var _ref36 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (paths, mode = constants.W_OK | constants.X_OK) {
-    const result = {
-      skipped: [],
-      folder: null
-    };
-
-    for (var _iterator16 = paths, _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : _iterator16[Symbol.iterator]();;) {
-      var _ref37;
-
-      if (_isArray16) {
-        if (_i16 >= _iterator16.length) break;
-        _ref37 = _iterator16[_i16++];
-      } else {
-        _i16 = _iterator16.next();
-        if (_i16.done) break;
-        _ref37 = _i16.value;
-      }
-
-      const folder = _ref37;
-
-      try {
-        yield mkdirp(folder);
-        yield access(folder, mode);
-
-        result.folder = folder;
-
-        return result;
-      } catch (error) {
-        result.skipped.push({
-          error,
-          folder
-        });
-      }
-    }
-    return result;
-  });
-
-  return function getFirstSuitableFolder(_x35) {
-    return _ref36.apply(this, arguments);
-  };
-})();
-
-exports.copy = copy;
-exports.readFile = readFile;
-exports.readFileRaw = readFileRaw;
-exports.normalizeOS = normalizeOS;
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireDefault(__webpack_require__(5));
-}
-
-var _glob;
-
-function _load_glob() {
-  return _glob = _interopRequireDefault(__webpack_require__(99));
-}
-
-var _os;
-
-function _load_os() {
-  return _os = _interopRequireDefault(__webpack_require__(46));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _blockingQueue;
-
-function _load_blockingQueue() {
-  return _blockingQueue = _interopRequireDefault(__webpack_require__(110));
-}
-
-var _promise;
-
-function _load_promise() {
-  return _promise = _interopRequireWildcard(__webpack_require__(50));
-}
-
-var _promise2;
-
-function _load_promise2() {
-  return _promise2 = __webpack_require__(50);
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _fsNormalized;
-
-function _load_fsNormalized() {
-  return _fsNormalized = __webpack_require__(218);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const constants = exports.constants = typeof (_fs || _load_fs()).default.constants !== 'undefined' ? (_fs || _load_fs()).default.constants : {
-  R_OK: (_fs || _load_fs()).default.R_OK,
-  W_OK: (_fs || _load_fs()).default.W_OK,
-  X_OK: (_fs || _load_fs()).default.X_OK
-};
-
-const lockQueue = exports.lockQueue = new (_blockingQueue || _load_blockingQueue()).default('fs lock');
-
-const readFileBuffer = exports.readFileBuffer = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.readFile);
-const open = exports.open = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.open);
-const writeFile = exports.writeFile = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.writeFile);
-const readlink = exports.readlink = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.readlink);
-const realpath = exports.realpath = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.realpath);
-const readdir = exports.readdir = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.readdir);
-const rename = exports.rename = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.rename);
-const access = exports.access = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.access);
-const stat = exports.stat = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.stat);
-const mkdirp = exports.mkdirp = (0, (_promise2 || _load_promise2()).promisify)(__webpack_require__(145));
-const exists = exports.exists = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.exists, true);
-const lstat = exports.lstat = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.lstat);
-const chmod = exports.chmod = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.chmod);
-const link = exports.link = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.link);
-const glob = exports.glob = (0, (_promise2 || _load_promise2()).promisify)((_glob || _load_glob()).default);
-exports.unlink = (_fsNormalized || _load_fsNormalized()).unlink;
-
-// fs.copyFile uses the native file copying instructions on the system, performing much better
-// than any JS-based solution and consumes fewer resources. Repeated testing to fine tune the
-// concurrency level revealed 128 as the sweet spot on a quad-core, 16 CPU Intel system with SSD.
-
-const CONCURRENT_QUEUE_ITEMS = (_fs || _load_fs()).default.copyFile ? 128 : 4;
-
-const fsSymlink = (0, (_promise2 || _load_promise2()).promisify)((_fs || _load_fs()).default.symlink);
-const invariant = __webpack_require__(9);
-const stripBOM = __webpack_require__(160);
-
-const noop = () => {};
-
-function copy(src, dest, reporter) {
-  return copyBulk([{ src, dest }], reporter);
-}
-
-function _readFile(loc, encoding) {
-  return new Promise((resolve, reject) => {
-    (_fs || _load_fs()).default.readFile(loc, encoding, function (err, content) {
-      if (err) {
-        reject(err);
-      } else {
-        resolve(content);
-      }
-    });
-  });
-}
-
-function readFile(loc) {
-  return _readFile(loc, 'utf8').then(normalizeOS);
-}
-
-function readFileRaw(loc) {
-  return _readFile(loc, 'binary');
-}
-
-function normalizeOS(body) {
-  return body.replace(/\r\n/g, '\n');
-}
-
-const cr = '\r'.charCodeAt(0);
-const lf = '\n'.charCodeAt(0);
-
-/***/ }),
-/* 5 */
-/***/ (function(module, exports) {
-
-module.exports = require("fs");
-
-/***/ }),
-/* 6 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-class MessageError extends Error {
-  constructor(msg, code) {
-    super(msg);
-    this.code = code;
-  }
-
-}
-
-exports.MessageError = MessageError;
-class ProcessSpawnError extends MessageError {
-  constructor(msg, code, process) {
-    super(msg, code);
-    this.process = process;
-  }
-
-}
-
-exports.ProcessSpawnError = ProcessSpawnError;
-class SecurityError extends MessageError {}
-
-exports.SecurityError = SecurityError;
-class ProcessTermError extends MessageError {}
-
-exports.ProcessTermError = ProcessTermError;
-class ResponseError extends Error {
-  constructor(msg, responseCode) {
-    super(msg);
-    this.responseCode = responseCode;
-  }
-
-}
-
-exports.ResponseError = ResponseError;
-class OneTimePasswordError extends Error {}
-exports.OneTimePasswordError = OneTimePasswordError;
-
-/***/ }),
-/* 7 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Subscriber; });
-/* unused harmony export SafeSubscriber */
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__util_isFunction__ = __webpack_require__(154);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__Observer__ = __webpack_require__(420);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__Subscription__ = __webpack_require__(25);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__internal_symbol_rxSubscriber__ = __webpack_require__(321);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__config__ = __webpack_require__(185);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__util_hostReportError__ = __webpack_require__(323);
-/** PURE_IMPORTS_START tslib,_util_isFunction,_Observer,_Subscription,_internal_symbol_rxSubscriber,_config,_util_hostReportError PURE_IMPORTS_END */
-
-
-
-
-
-
-
-var Subscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](Subscriber, _super);
-    function Subscriber(destinationOrNext, error, complete) {
-        var _this = _super.call(this) || this;
-        _this.syncErrorValue = null;
-        _this.syncErrorThrown = false;
-        _this.syncErrorThrowable = false;
-        _this.isStopped = false;
-        _this._parentSubscription = null;
-        switch (arguments.length) {
-            case 0:
-                _this.destination = __WEBPACK_IMPORTED_MODULE_2__Observer__["a" /* empty */];
-                break;
-            case 1:
-                if (!destinationOrNext) {
-                    _this.destination = __WEBPACK_IMPORTED_MODULE_2__Observer__["a" /* empty */];
-                    break;
-                }
-                if (typeof destinationOrNext === 'object') {
-                    if (destinationOrNext instanceof Subscriber) {
-                        _this.syncErrorThrowable = destinationOrNext.syncErrorThrowable;
-                        _this.destination = destinationOrNext;
-                        destinationOrNext.add(_this);
-                    }
-                    else {
-                        _this.syncErrorThrowable = true;
-                        _this.destination = new SafeSubscriber(_this, destinationOrNext);
-                    }
-                    break;
-                }
-            default:
-                _this.syncErrorThrowable = true;
-                _this.destination = new SafeSubscriber(_this, destinationOrNext, error, complete);
-                break;
-        }
-        return _this;
-    }
-    Subscriber.prototype[__WEBPACK_IMPORTED_MODULE_4__internal_symbol_rxSubscriber__["a" /* rxSubscriber */]] = function () { return this; };
-    Subscriber.create = function (next, error, complete) {
-        var subscriber = new Subscriber(next, error, complete);
-        subscriber.syncErrorThrowable = false;
-        return subscriber;
-    };
-    Subscriber.prototype.next = function (value) {
-        if (!this.isStopped) {
-            this._next(value);
-        }
-    };
-    Subscriber.prototype.error = function (err) {
-        if (!this.isStopped) {
-            this.isStopped = true;
-            this._error(err);
-        }
-    };
-    Subscriber.prototype.complete = function () {
-        if (!this.isStopped) {
-            this.isStopped = true;
-            this._complete();
-        }
-    };
-    Subscriber.prototype.unsubscribe = function () {
-        if (this.closed) {
-            return;
-        }
-        this.isStopped = true;
-        _super.prototype.unsubscribe.call(this);
-    };
-    Subscriber.prototype._next = function (value) {
-        this.destination.next(value);
-    };
-    Subscriber.prototype._error = function (err) {
-        this.destination.error(err);
-        this.unsubscribe();
-    };
-    Subscriber.prototype._complete = function () {
-        this.destination.complete();
-        this.unsubscribe();
-    };
-    Subscriber.prototype._unsubscribeAndRecycle = function () {
-        var _a = this, _parent = _a._parent, _parents = _a._parents;
-        this._parent = null;
-        this._parents = null;
-        this.unsubscribe();
-        this.closed = false;
-        this.isStopped = false;
-        this._parent = _parent;
-        this._parents = _parents;
-        this._parentSubscription = null;
-        return this;
-    };
-    return Subscriber;
-}(__WEBPACK_IMPORTED_MODULE_3__Subscription__["a" /* Subscription */]));
-
-var SafeSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](SafeSubscriber, _super);
-    function SafeSubscriber(_parentSubscriber, observerOrNext, error, complete) {
-        var _this = _super.call(this) || this;
-        _this._parentSubscriber = _parentSubscriber;
-        var next;
-        var context = _this;
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_isFunction__["a" /* isFunction */])(observerOrNext)) {
-            next = observerOrNext;
-        }
-        else if (observerOrNext) {
-            next = observerOrNext.next;
-            error = observerOrNext.error;
-            complete = observerOrNext.complete;
-            if (observerOrNext !== __WEBPACK_IMPORTED_MODULE_2__Observer__["a" /* empty */]) {
-                context = Object.create(observerOrNext);
-                if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_isFunction__["a" /* isFunction */])(context.unsubscribe)) {
-                    _this.add(context.unsubscribe.bind(context));
-                }
-                context.unsubscribe = _this.unsubscribe.bind(_this);
-            }
-        }
-        _this._context = context;
-        _this._next = next;
-        _this._error = error;
-        _this._complete = complete;
-        return _this;
-    }
-    SafeSubscriber.prototype.next = function (value) {
-        if (!this.isStopped && this._next) {
-            var _parentSubscriber = this._parentSubscriber;
-            if (!__WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
-                this.__tryOrUnsub(this._next, value);
-            }
-            else if (this.__tryOrSetError(_parentSubscriber, this._next, value)) {
-                this.unsubscribe();
-            }
-        }
-    };
-    SafeSubscriber.prototype.error = function (err) {
-        if (!this.isStopped) {
-            var _parentSubscriber = this._parentSubscriber;
-            var useDeprecatedSynchronousErrorHandling = __WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling;
-            if (this._error) {
-                if (!useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
-                    this.__tryOrUnsub(this._error, err);
-                    this.unsubscribe();
-                }
-                else {
-                    this.__tryOrSetError(_parentSubscriber, this._error, err);
-                    this.unsubscribe();
-                }
-            }
-            else if (!_parentSubscriber.syncErrorThrowable) {
-                this.unsubscribe();
-                if (useDeprecatedSynchronousErrorHandling) {
-                    throw err;
-                }
-                __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_6__util_hostReportError__["a" /* hostReportError */])(err);
-            }
-            else {
-                if (useDeprecatedSynchronousErrorHandling) {
-                    _parentSubscriber.syncErrorValue = err;
-                    _parentSubscriber.syncErrorThrown = true;
-                }
-                else {
-                    __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_6__util_hostReportError__["a" /* hostReportError */])(err);
-                }
-                this.unsubscribe();
-            }
-        }
-    };
-    SafeSubscriber.prototype.complete = function () {
-        var _this = this;
-        if (!this.isStopped) {
-            var _parentSubscriber = this._parentSubscriber;
-            if (this._complete) {
-                var wrappedComplete = function () { return _this._complete.call(_this._context); };
-                if (!__WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling || !_parentSubscriber.syncErrorThrowable) {
-                    this.__tryOrUnsub(wrappedComplete);
-                    this.unsubscribe();
-                }
-                else {
-                    this.__tryOrSetError(_parentSubscriber, wrappedComplete);
-                    this.unsubscribe();
-                }
-            }
-            else {
-                this.unsubscribe();
-            }
-        }
-    };
-    SafeSubscriber.prototype.__tryOrUnsub = function (fn, value) {
-        try {
-            fn.call(this._context, value);
-        }
-        catch (err) {
-            this.unsubscribe();
-            if (__WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling) {
-                throw err;
-            }
-            else {
-                __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_6__util_hostReportError__["a" /* hostReportError */])(err);
-            }
-        }
-    };
-    SafeSubscriber.prototype.__tryOrSetError = function (parent, fn, value) {
-        if (!__WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling) {
-            throw new Error('bad call');
-        }
-        try {
-            fn.call(this._context, value);
-        }
-        catch (err) {
-            if (__WEBPACK_IMPORTED_MODULE_5__config__["a" /* config */].useDeprecatedSynchronousErrorHandling) {
-                parent.syncErrorValue = err;
-                parent.syncErrorThrown = true;
-                return true;
-            }
-            else {
-                __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_6__util_hostReportError__["a" /* hostReportError */])(err);
-                return true;
-            }
-        }
-        return false;
-    };
-    SafeSubscriber.prototype._unsubscribe = function () {
-        var _parentSubscriber = this._parentSubscriber;
-        this._context = null;
-        this._parentSubscriber = null;
-        _parentSubscriber.unsubscribe();
-    };
-    return SafeSubscriber;
-}(Subscriber));
-
-//# sourceMappingURL=Subscriber.js.map
-
-
-/***/ }),
-/* 8 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getPathKey = getPathKey;
-const os = __webpack_require__(46);
-const path = __webpack_require__(0);
-const userHome = __webpack_require__(67).default;
-
-var _require = __webpack_require__(225);
-
-const getCacheDir = _require.getCacheDir,
-      getConfigDir = _require.getConfigDir,
-      getDataDir = _require.getDataDir;
-
-const isWebpackBundle = __webpack_require__(278);
-
-const DEPENDENCY_TYPES = exports.DEPENDENCY_TYPES = ['devDependencies', 'dependencies', 'optionalDependencies', 'peerDependencies'];
-const OWNED_DEPENDENCY_TYPES = exports.OWNED_DEPENDENCY_TYPES = ['devDependencies', 'dependencies', 'optionalDependencies'];
-
-const RESOLUTIONS = exports.RESOLUTIONS = 'resolutions';
-const MANIFEST_FIELDS = exports.MANIFEST_FIELDS = [RESOLUTIONS, ...DEPENDENCY_TYPES];
-
-const SUPPORTED_NODE_VERSIONS = exports.SUPPORTED_NODE_VERSIONS = '^4.8.0 || ^5.7.0 || ^6.2.2 || >=8.0.0';
-
-const YARN_REGISTRY = exports.YARN_REGISTRY = 'https://registry.yarnpkg.com';
-const NPM_REGISTRY_RE = exports.NPM_REGISTRY_RE = /https?:\/\/registry\.npmjs\.org/g;
-
-const YARN_DOCS = exports.YARN_DOCS = 'https://yarnpkg.com/en/docs/cli/';
-const YARN_INSTALLER_SH = exports.YARN_INSTALLER_SH = 'https://yarnpkg.com/install.sh';
-const YARN_INSTALLER_MSI = exports.YARN_INSTALLER_MSI = 'https://yarnpkg.com/latest.msi';
-
-const SELF_UPDATE_VERSION_URL = exports.SELF_UPDATE_VERSION_URL = 'https://yarnpkg.com/latest-version';
-
-// cache version, bump whenever we make backwards incompatible changes
-const CACHE_VERSION = exports.CACHE_VERSION = 6;
-
-// lockfile version, bump whenever we make backwards incompatible changes
-const LOCKFILE_VERSION = exports.LOCKFILE_VERSION = 1;
-
-// max amount of network requests to perform concurrently
-const NETWORK_CONCURRENCY = exports.NETWORK_CONCURRENCY = 8;
-
-// HTTP timeout used when downloading packages
-const NETWORK_TIMEOUT = exports.NETWORK_TIMEOUT = 30 * 1000; // in milliseconds
-
-// max amount of child processes to execute concurrently
-const CHILD_CONCURRENCY = exports.CHILD_CONCURRENCY = 5;
-
-const REQUIRED_PACKAGE_KEYS = exports.REQUIRED_PACKAGE_KEYS = ['name', 'version', '_uid'];
-
-function getPreferredCacheDirectories() {
-  const preferredCacheDirectories = [getCacheDir()];
-
-  if (process.getuid) {
-    // $FlowFixMe: process.getuid exists, dammit
-    preferredCacheDirectories.push(path.join(os.tmpdir(), `.yarn-cache-${process.getuid()}`));
-  }
-
-  preferredCacheDirectories.push(path.join(os.tmpdir(), `.yarn-cache`));
-
-  return preferredCacheDirectories;
-}
-
-const PREFERRED_MODULE_CACHE_DIRECTORIES = exports.PREFERRED_MODULE_CACHE_DIRECTORIES = getPreferredCacheDirectories();
-const CONFIG_DIRECTORY = exports.CONFIG_DIRECTORY = getConfigDir();
-const DATA_DIRECTORY = exports.DATA_DIRECTORY = getDataDir();
-const LINK_REGISTRY_DIRECTORY = exports.LINK_REGISTRY_DIRECTORY = path.join(DATA_DIRECTORY, 'link');
-const GLOBAL_MODULE_DIRECTORY = exports.GLOBAL_MODULE_DIRECTORY = path.join(DATA_DIRECTORY, 'global');
-
-const NODE_BIN_PATH = exports.NODE_BIN_PATH = process.execPath;
-const YARN_BIN_PATH = exports.YARN_BIN_PATH = getYarnBinPath();
-
-// Webpack needs to be configured with node.__dirname/__filename = false
-function getYarnBinPath() {
-  if (isWebpackBundle) {
-    return __filename;
-  } else {
-    return path.join(__dirname, '..', 'bin', 'yarn.js');
-  }
-}
-
-const NODE_MODULES_FOLDER = exports.NODE_MODULES_FOLDER = 'node_modules';
-const NODE_PACKAGE_JSON = exports.NODE_PACKAGE_JSON = 'package.json';
-
-const PNP_FILENAME = exports.PNP_FILENAME = '.pnp.js';
-
-const POSIX_GLOBAL_PREFIX = exports.POSIX_GLOBAL_PREFIX = `${process.env.DESTDIR || ''}/usr/local`;
-const FALLBACK_GLOBAL_PREFIX = exports.FALLBACK_GLOBAL_PREFIX = path.join(userHome, '.yarn');
-
-const META_FOLDER = exports.META_FOLDER = '.yarn-meta';
-const INTEGRITY_FILENAME = exports.INTEGRITY_FILENAME = '.yarn-integrity';
-const LOCKFILE_FILENAME = exports.LOCKFILE_FILENAME = 'yarn.lock';
-const METADATA_FILENAME = exports.METADATA_FILENAME = '.yarn-metadata.json';
-const TARBALL_FILENAME = exports.TARBALL_FILENAME = '.yarn-tarball.tgz';
-const CLEAN_FILENAME = exports.CLEAN_FILENAME = '.yarnclean';
-
-const NPM_LOCK_FILENAME = exports.NPM_LOCK_FILENAME = 'package-lock.json';
-const NPM_SHRINKWRAP_FILENAME = exports.NPM_SHRINKWRAP_FILENAME = 'npm-shrinkwrap.json';
-
-const DEFAULT_INDENT = exports.DEFAULT_INDENT = '  ';
-const SINGLE_INSTANCE_PORT = exports.SINGLE_INSTANCE_PORT = 31997;
-const SINGLE_INSTANCE_FILENAME = exports.SINGLE_INSTANCE_FILENAME = '.yarn-single-instance';
-
-const ENV_PATH_KEY = exports.ENV_PATH_KEY = getPathKey(process.platform, process.env);
-
-function getPathKey(platform, env) {
-  let pathKey = 'PATH';
-
-  // windows calls its path "Path" usually, but this is not guaranteed.
-  if (platform === 'win32') {
-    pathKey = 'Path';
-
-    for (const key in env) {
-      if (key.toLowerCase() === 'path') {
-        pathKey = key;
-      }
-    }
-  }
-
-  return pathKey;
-}
-
-const VERSION_COLOR_SCHEME = exports.VERSION_COLOR_SCHEME = {
-  major: 'red',
-  premajor: 'red',
-  minor: 'yellow',
-  preminor: 'yellow',
-  patch: 'green',
-  prepatch: 'green',
-  prerelease: 'red',
-  unchanged: 'white',
-  unknown: 'red'
-};
-
-/***/ }),
-/* 9 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-
-
-/**
- * Use invariant() to assert state which your program assumes to be true.
- *
- * Provide sprintf-style format (only %s is supported) and arguments
- * to provide information about what broke and what you were
- * expecting.
- *
- * The invariant message will be stripped in production, but the invariant
- * will remain to ensure logic does not differ in production.
- */
-
-var NODE_ENV = process.env.NODE_ENV;
-
-var invariant = function(condition, format, a, b, c, d, e, f) {
-  if (NODE_ENV !== 'production') {
-    if (format === undefined) {
-      throw new Error('invariant requires an error message argument');
-    }
-  }
-
-  if (!condition) {
-    var error;
-    if (format === undefined) {
-      error = new Error(
-        'Minified exception occurred; use the non-minified dev environment ' +
-        'for the full error message and additional helpful warnings.'
-      );
-    } else {
-      var args = [a, b, c, d, e, f];
-      var argIndex = 0;
-      error = new Error(
-        format.replace(/%s/g, function() { return args[argIndex++]; })
-      );
-      error.name = 'Invariant Violation';
-    }
-
-    error.framesToPop = 1; // we don't care about invariant's own frame
-    throw error;
-  }
-};
-
-module.exports = invariant;
-
-
-/***/ }),
-/* 10 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var YAMLException = __webpack_require__(54);
-
-var TYPE_CONSTRUCTOR_OPTIONS = [
-  'kind',
-  'resolve',
-  'construct',
-  'instanceOf',
-  'predicate',
-  'represent',
-  'defaultStyle',
-  'styleAliases'
-];
-
-var YAML_NODE_KINDS = [
-  'scalar',
-  'sequence',
-  'mapping'
-];
-
-function compileStyleAliases(map) {
-  var result = {};
-
-  if (map !== null) {
-    Object.keys(map).forEach(function (style) {
-      map[style].forEach(function (alias) {
-        result[String(alias)] = style;
-      });
-    });
-  }
-
-  return result;
-}
-
-function Type(tag, options) {
-  options = options || {};
-
-  Object.keys(options).forEach(function (name) {
-    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
-      throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
-    }
-  });
-
-  // TODO: Add tag format check.
-  this.tag          = tag;
-  this.kind         = options['kind']         || null;
-  this.resolve      = options['resolve']      || function () { return true; };
-  this.construct    = options['construct']    || function (data) { return data; };
-  this.instanceOf   = options['instanceOf']   || null;
-  this.predicate    = options['predicate']    || null;
-  this.represent    = options['represent']    || null;
-  this.defaultStyle = options['defaultStyle'] || null;
-  this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
-
-  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
-    throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
-  }
-}
-
-module.exports = Type;
-
-
-/***/ }),
-/* 11 */
-/***/ (function(module, exports) {
-
-module.exports = require("crypto");
-
-/***/ }),
-/* 12 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Observable; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__util_canReportError__ = __webpack_require__(322);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__util_toSubscriber__ = __webpack_require__(932);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__internal_symbol_observable__ = __webpack_require__(117);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_pipe__ = __webpack_require__(324);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__config__ = __webpack_require__(185);
-/** PURE_IMPORTS_START _util_canReportError,_util_toSubscriber,_internal_symbol_observable,_util_pipe,_config PURE_IMPORTS_END */
-
-
-
-
-
-var Observable = /*@__PURE__*/ (function () {
-    function Observable(subscribe) {
-        this._isScalar = false;
-        if (subscribe) {
-            this._subscribe = subscribe;
-        }
-    }
-    Observable.prototype.lift = function (operator) {
-        var observable = new Observable();
-        observable.source = this;
-        observable.operator = operator;
-        return observable;
-    };
-    Observable.prototype.subscribe = function (observerOrNext, error, complete) {
-        var operator = this.operator;
-        var sink = __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_toSubscriber__["a" /* toSubscriber */])(observerOrNext, error, complete);
-        if (operator) {
-            operator.call(sink, this.source);
-        }
-        else {
-            sink.add(this.source || (__WEBPACK_IMPORTED_MODULE_4__config__["a" /* config */].useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?
-                this._subscribe(sink) :
-                this._trySubscribe(sink));
-        }
-        if (__WEBPACK_IMPORTED_MODULE_4__config__["a" /* config */].useDeprecatedSynchronousErrorHandling) {
-            if (sink.syncErrorThrowable) {
-                sink.syncErrorThrowable = false;
-                if (sink.syncErrorThrown) {
-                    throw sink.syncErrorValue;
-                }
-            }
-        }
-        return sink;
-    };
-    Observable.prototype._trySubscribe = function (sink) {
-        try {
-            return this._subscribe(sink);
-        }
-        catch (err) {
-            if (__WEBPACK_IMPORTED_MODULE_4__config__["a" /* config */].useDeprecatedSynchronousErrorHandling) {
-                sink.syncErrorThrown = true;
-                sink.syncErrorValue = err;
-            }
-            if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_0__util_canReportError__["a" /* canReportError */])(sink)) {
-                sink.error(err);
-            }
-            else {
-                console.warn(err);
-            }
-        }
-    };
-    Observable.prototype.forEach = function (next, promiseCtor) {
-        var _this = this;
-        promiseCtor = getPromiseCtor(promiseCtor);
-        return new promiseCtor(function (resolve, reject) {
-            var subscription;
-            subscription = _this.subscribe(function (value) {
-                try {
-                    next(value);
-                }
-                catch (err) {
-                    reject(err);
-                    if (subscription) {
-                        subscription.unsubscribe();
-                    }
-                }
-            }, reject, resolve);
-        });
-    };
-    Observable.prototype._subscribe = function (subscriber) {
-        var source = this.source;
-        return source && source.subscribe(subscriber);
-    };
-    Observable.prototype[__WEBPACK_IMPORTED_MODULE_2__internal_symbol_observable__["a" /* observable */]] = function () {
-        return this;
-    };
-    Observable.prototype.pipe = function () {
-        var operations = [];
-        for (var _i = 0; _i < arguments.length; _i++) {
-            operations[_i] = arguments[_i];
-        }
-        if (operations.length === 0) {
-            return this;
-        }
-        return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_pipe__["b" /* pipeFromArray */])(operations)(this);
-    };
-    Observable.prototype.toPromise = function (promiseCtor) {
-        var _this = this;
-        promiseCtor = getPromiseCtor(promiseCtor);
-        return new promiseCtor(function (resolve, reject) {
-            var value;
-            _this.subscribe(function (x) { return value = x; }, function (err) { return reject(err); }, function () { return resolve(value); });
-        });
-    };
-    Observable.create = function (subscribe) {
-        return new Observable(subscribe);
-    };
-    return Observable;
-}());
-
-function getPromiseCtor(promiseCtor) {
-    if (!promiseCtor) {
-        promiseCtor = __WEBPACK_IMPORTED_MODULE_4__config__["a" /* config */].Promise || Promise;
-    }
-    if (!promiseCtor) {
-        throw new Error('no Promise impl found');
-    }
-    return promiseCtor;
-}
-//# sourceMappingURL=Observable.js.map
-
-
-/***/ }),
-/* 13 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return OuterSubscriber; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
-/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
-
-
-var OuterSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](OuterSubscriber, _super);
-    function OuterSubscriber() {
-        return _super !== null && _super.apply(this, arguments) || this;
-    }
-    OuterSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
-        this.destination.next(innerValue);
-    };
-    OuterSubscriber.prototype.notifyError = function (error, innerSub) {
-        this.destination.error(error);
-    };
-    OuterSubscriber.prototype.notifyComplete = function (innerSub) {
-        this.destination.complete();
-    };
-    return OuterSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_1__Subscriber__["a" /* Subscriber */]));
-
-//# sourceMappingURL=OuterSubscriber.js.map
-
-
-/***/ }),
-/* 14 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = subscribeToResult;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__InnerSubscriber__ = __webpack_require__(84);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__subscribeTo__ = __webpack_require__(446);
-/** PURE_IMPORTS_START _InnerSubscriber,_subscribeTo PURE_IMPORTS_END */
-
-
-function subscribeToResult(outerSubscriber, result, outerValue, outerIndex, destination) {
-    if (destination === void 0) {
-        destination = new __WEBPACK_IMPORTED_MODULE_0__InnerSubscriber__["a" /* InnerSubscriber */](outerSubscriber, outerValue, outerIndex);
-    }
-    if (destination.closed) {
-        return;
-    }
-    return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__subscribeTo__["a" /* subscribeTo */])(result)(destination);
-}
-//# sourceMappingURL=subscribeToResult.js.map
-
-
-/***/ }),
-/* 15 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/* eslint-disable node/no-deprecated-api */
-
-
-
-var buffer = __webpack_require__(64)
-var Buffer = buffer.Buffer
-
-var safer = {}
-
-var key
-
-for (key in buffer) {
-  if (!buffer.hasOwnProperty(key)) continue
-  if (key === 'SlowBuffer' || key === 'Buffer') continue
-  safer[key] = buffer[key]
-}
-
-var Safer = safer.Buffer = {}
-for (key in Buffer) {
-  if (!Buffer.hasOwnProperty(key)) continue
-  if (key === 'allocUnsafe' || key === 'allocUnsafeSlow') continue
-  Safer[key] = Buffer[key]
-}
-
-safer.Buffer.prototype = Buffer.prototype
-
-if (!Safer.from || Safer.from === Uint8Array.from) {
-  Safer.from = function (value, encodingOrOffset, length) {
-    if (typeof value === 'number') {
-      throw new TypeError('The "value" argument must not be of type number. Received type ' + typeof value)
-    }
-    if (value && typeof value.length === 'undefined') {
-      throw new TypeError('The first argument must be one of type string, Buffer, ArrayBuffer, Array, or Array-like Object. Received type ' + typeof value)
-    }
-    return Buffer(value, encodingOrOffset, length)
-  }
-}
-
-if (!Safer.alloc) {
-  Safer.alloc = function (size, fill, encoding) {
-    if (typeof size !== 'number') {
-      throw new TypeError('The "size" argument must be of type number. Received type ' + typeof size)
-    }
-    if (size < 0 || size >= 2 * (1 << 30)) {
-      throw new RangeError('The value "' + size + '" is invalid for option "size"')
-    }
-    var buf = Buffer(size)
-    if (!fill || fill.length === 0) {
-      buf.fill(0)
-    } else if (typeof encoding === 'string') {
-      buf.fill(fill, encoding)
-    } else {
-      buf.fill(fill)
-    }
-    return buf
-  }
-}
-
-if (!safer.kStringMaxLength) {
-  try {
-    safer.kStringMaxLength = process.binding('buffer').kStringMaxLength
-  } catch (e) {
-    // we can't determine kStringMaxLength in environments where process.binding
-    // is unsupported, so let's not set it
-  }
-}
-
-if (!safer.constants) {
-  safer.constants = {
-    MAX_LENGTH: safer.kMaxLength
-  }
-  if (safer.kStringMaxLength) {
-    safer.constants.MAX_STRING_LENGTH = safer.kStringMaxLength
-  }
-}
-
-module.exports = safer
-
-
-/***/ }),
-/* 16 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright (c) 2012, Mark Cavage. All rights reserved.
-// Copyright 2015 Joyent, Inc.
-
-var assert = __webpack_require__(28);
-var Stream = __webpack_require__(23).Stream;
-var util = __webpack_require__(3);
-
-
-///--- Globals
-
-/* JSSTYLED */
-var UUID_REGEXP = /^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$/;
-
-
-///--- Internal
-
-function _capitalize(str) {
-    return (str.charAt(0).toUpperCase() + str.slice(1));
-}
-
-function _toss(name, expected, oper, arg, actual) {
-    throw new assert.AssertionError({
-        message: util.format('%s (%s) is required', name, expected),
-        actual: (actual === undefined) ? typeof (arg) : actual(arg),
-        expected: expected,
-        operator: oper || '===',
-        stackStartFunction: _toss.caller
-    });
-}
-
-function _getClass(arg) {
-    return (Object.prototype.toString.call(arg).slice(8, -1));
-}
-
-function noop() {
-    // Why even bother with asserts?
-}
-
-
-///--- Exports
-
-var types = {
-    bool: {
-        check: function (arg) { return typeof (arg) === 'boolean'; }
-    },
-    func: {
-        check: function (arg) { return typeof (arg) === 'function'; }
-    },
-    string: {
-        check: function (arg) { return typeof (arg) === 'string'; }
-    },
-    object: {
-        check: function (arg) {
-            return typeof (arg) === 'object' && arg !== null;
-        }
-    },
-    number: {
-        check: function (arg) {
-            return typeof (arg) === 'number' && !isNaN(arg);
-        }
-    },
-    finite: {
-        check: function (arg) {
-            return typeof (arg) === 'number' && !isNaN(arg) && isFinite(arg);
-        }
-    },
-    buffer: {
-        check: function (arg) { return Buffer.isBuffer(arg); },
-        operator: 'Buffer.isBuffer'
-    },
-    array: {
-        check: function (arg) { return Array.isArray(arg); },
-        operator: 'Array.isArray'
-    },
-    stream: {
-        check: function (arg) { return arg instanceof Stream; },
-        operator: 'instanceof',
-        actual: _getClass
-    },
-    date: {
-        check: function (arg) { return arg instanceof Date; },
-        operator: 'instanceof',
-        actual: _getClass
-    },
-    regexp: {
-        check: function (arg) { return arg instanceof RegExp; },
-        operator: 'instanceof',
-        actual: _getClass
-    },
-    uuid: {
-        check: function (arg) {
-            return typeof (arg) === 'string' && UUID_REGEXP.test(arg);
-        },
-        operator: 'isUUID'
-    }
-};
-
-function _setExports(ndebug) {
-    var keys = Object.keys(types);
-    var out;
-
-    /* re-export standard assert */
-    if (process.env.NODE_NDEBUG) {
-        out = noop;
-    } else {
-        out = function (arg, msg) {
-            if (!arg) {
-                _toss(msg, 'true', arg);
-            }
-        };
-    }
-
-    /* standard checks */
-    keys.forEach(function (k) {
-        if (ndebug) {
-            out[k] = noop;
-            return;
-        }
-        var type = types[k];
-        out[k] = function (arg, msg) {
-            if (!type.check(arg)) {
-                _toss(msg, k, type.operator, arg, type.actual);
-            }
-        };
-    });
-
-    /* optional checks */
-    keys.forEach(function (k) {
-        var name = 'optional' + _capitalize(k);
-        if (ndebug) {
-            out[name] = noop;
-            return;
-        }
-        var type = types[k];
-        out[name] = function (arg, msg) {
-            if (arg === undefined || arg === null) {
-                return;
-            }
-            if (!type.check(arg)) {
-                _toss(msg, k, type.operator, arg, type.actual);
-            }
-        };
-    });
-
-    /* arrayOf checks */
-    keys.forEach(function (k) {
-        var name = 'arrayOf' + _capitalize(k);
-        if (ndebug) {
-            out[name] = noop;
-            return;
-        }
-        var type = types[k];
-        var expected = '[' + k + ']';
-        out[name] = function (arg, msg) {
-            if (!Array.isArray(arg)) {
-                _toss(msg, expected, type.operator, arg, type.actual);
-            }
-            var i;
-            for (i = 0; i < arg.length; i++) {
-                if (!type.check(arg[i])) {
-                    _toss(msg, expected, type.operator, arg, type.actual);
-                }
-            }
-        };
-    });
-
-    /* optionalArrayOf checks */
-    keys.forEach(function (k) {
-        var name = 'optionalArrayOf' + _capitalize(k);
-        if (ndebug) {
-            out[name] = noop;
-            return;
-        }
-        var type = types[k];
-        var expected = '[' + k + ']';
-        out[name] = function (arg, msg) {
-            if (arg === undefined || arg === null) {
-                return;
-            }
-            if (!Array.isArray(arg)) {
-                _toss(msg, expected, type.operator, arg, type.actual);
-            }
-            var i;
-            for (i = 0; i < arg.length; i++) {
-                if (!type.check(arg[i])) {
-                    _toss(msg, expected, type.operator, arg, type.actual);
-                }
-            }
-        };
-    });
-
-    /* re-export built-in assertions */
-    Object.keys(assert).forEach(function (k) {
-        if (k === 'AssertionError') {
-            out[k] = assert[k];
-            return;
-        }
-        if (ndebug) {
-            out[k] = noop;
-            return;
-        }
-        out[k] = assert[k];
-    });
-
-    /* export ourselves (for unit tests _only_) */
-    out._setExports = _setExports;
-
-    return out;
-}
-
-module.exports = _setExports(process.env.NODE_NDEBUG);
-
-
-/***/ }),
-/* 17 */
-/***/ (function(module, exports) {
-
-// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
-var global = module.exports = typeof window != 'undefined' && window.Math == Math
-  ? window : typeof self != 'undefined' && self.Math == Math ? self
-  // eslint-disable-next-line no-new-func
-  : Function('return this')();
-if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
-
-
-/***/ }),
-/* 18 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.sortAlpha = sortAlpha;
-exports.sortOptionsByFlags = sortOptionsByFlags;
-exports.entries = entries;
-exports.removePrefix = removePrefix;
-exports.removeSuffix = removeSuffix;
-exports.addSuffix = addSuffix;
-exports.hyphenate = hyphenate;
-exports.camelCase = camelCase;
-exports.compareSortedArrays = compareSortedArrays;
-exports.sleep = sleep;
-const _camelCase = __webpack_require__(230);
-
-function sortAlpha(a, b) {
-  // sort alphabetically in a deterministic way
-  const shortLen = Math.min(a.length, b.length);
-  for (let i = 0; i < shortLen; i++) {
-    const aChar = a.charCodeAt(i);
-    const bChar = b.charCodeAt(i);
-    if (aChar !== bChar) {
-      return aChar - bChar;
-    }
-  }
-  return a.length - b.length;
-}
-
-function sortOptionsByFlags(a, b) {
-  const aOpt = a.flags.replace(/-/g, '');
-  const bOpt = b.flags.replace(/-/g, '');
-  return sortAlpha(aOpt, bOpt);
-}
-
-function entries(obj) {
-  const entries = [];
-  if (obj) {
-    for (const key in obj) {
-      entries.push([key, obj[key]]);
-    }
-  }
-  return entries;
-}
-
-function removePrefix(pattern, prefix) {
-  if (pattern.startsWith(prefix)) {
-    pattern = pattern.slice(prefix.length);
-  }
-
-  return pattern;
-}
-
-function removeSuffix(pattern, suffix) {
-  if (pattern.endsWith(suffix)) {
-    return pattern.slice(0, -suffix.length);
-  }
-
-  return pattern;
-}
-
-function addSuffix(pattern, suffix) {
-  if (!pattern.endsWith(suffix)) {
-    return pattern + suffix;
-  }
-
-  return pattern;
-}
-
-function hyphenate(str) {
-  return str.replace(/[A-Z]/g, match => {
-    return '-' + match.charAt(0).toLowerCase();
-  });
-}
-
-function camelCase(str) {
-  if (/[A-Z]/.test(str)) {
-    return null;
-  } else {
-    return _camelCase(str);
-  }
-}
-
-function compareSortedArrays(array1, array2) {
-  if (array1.length !== array2.length) {
-    return false;
-  }
-  for (let i = 0, len = array1.length; i < len; i++) {
-    if (array1[i] !== array2[i]) {
-      return false;
-    }
-  }
-  return true;
-}
-
-function sleep(ms) {
-  return new Promise(resolve => {
-    setTimeout(resolve, ms);
-  });
-}
-
-/***/ }),
-/* 19 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.stringify = exports.parse = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _parse;
-
-function _load_parse() {
-  return _parse = __webpack_require__(105);
-}
-
-Object.defineProperty(exports, 'parse', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_parse || _load_parse()).default;
-  }
-});
-
-var _stringify;
-
-function _load_stringify() {
-  return _stringify = __webpack_require__(199);
-}
-
-Object.defineProperty(exports, 'stringify', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_stringify || _load_stringify()).default;
-  }
-});
-exports.implodeEntry = implodeEntry;
-exports.explodeEntry = explodeEntry;
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _normalizePattern;
-
-function _load_normalizePattern() {
-  return _normalizePattern = __webpack_require__(37);
-}
-
-var _parse2;
-
-function _load_parse2() {
-  return _parse2 = _interopRequireDefault(__webpack_require__(105));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const path = __webpack_require__(0);
-const ssri = __webpack_require__(65);
-
-function getName(pattern) {
-  return (0, (_normalizePattern || _load_normalizePattern()).normalizePattern)(pattern).name;
-}
-
-function blankObjectUndefined(obj) {
-  return obj && Object.keys(obj).length ? obj : undefined;
-}
-
-function keyForRemote(remote) {
-  return remote.resolved || (remote.reference && remote.hash ? `${remote.reference}#${remote.hash}` : null);
-}
-
-function serializeIntegrity(integrity) {
-  // We need this because `Integrity.toString()` does not use sorting to ensure a stable string output
-  // See https://git.io/vx2Hy
-  return integrity.toString().split(' ').sort().join(' ');
-}
-
-function implodeEntry(pattern, obj) {
-  const inferredName = getName(pattern);
-  const integrity = obj.integrity ? serializeIntegrity(obj.integrity) : '';
-  const imploded = {
-    name: inferredName === obj.name ? undefined : obj.name,
-    version: obj.version,
-    uid: obj.uid === obj.version ? undefined : obj.uid,
-    resolved: obj.resolved,
-    registry: obj.registry === 'npm' ? undefined : obj.registry,
-    dependencies: blankObjectUndefined(obj.dependencies),
-    optionalDependencies: blankObjectUndefined(obj.optionalDependencies),
-    permissions: blankObjectUndefined(obj.permissions),
-    prebuilt2Variants: blankObjectUndefined(obj.prebuilt2Variants)
-  };
-  if (integrity) {
-    imploded.integrity = integrity;
-  }
-  return imploded;
-}
-
-function explodeEntry(pattern, obj) {
-  obj.optionalDependencies = obj.optionalDependencies || {};
-  obj.dependencies = obj.dependencies || {};
-  obj.uid = obj.uid || obj.version;
-  obj.permissions = obj.permissions || {};
-  obj.registry = obj.registry || 'npm';
-  obj.name = obj.name || getName(pattern);
-  const integrity = obj.integrity;
-  if (integrity && integrity.isIntegrity) {
-    obj.integrity = ssri.parse(integrity);
-  }
-  return obj;
-}
-
-class Lockfile {
-  constructor({ cache, source, parseResultType } = {}) {
-    this.source = source || '';
-    this.cache = cache;
-    this.parseResultType = parseResultType;
-  }
-
-  // source string if the `cache` was parsed
-
-
-  // if true, we're parsing an old yarn file and need to update integrity fields
-  hasEntriesExistWithoutIntegrity() {
-    if (!this.cache) {
-      return false;
-    }
-
-    for (const key in this.cache) {
-      // $FlowFixMe - `this.cache` is clearly defined at this point
-      if (!/^.*@(file:|http)/.test(key) && this.cache[key] && !this.cache[key].integrity) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
-  static fromDirectory(dir, reporter) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // read the manifest in this directory
-      const lockfileLoc = path.join(dir, (_constants || _load_constants()).LOCKFILE_FILENAME);
-
-      let lockfile;
-      let rawLockfile = '';
-      let parseResult;
-
-      if (yield (_fs || _load_fs()).exists(lockfileLoc)) {
-        rawLockfile = yield (_fs || _load_fs()).readFile(lockfileLoc);
-        parseResult = (0, (_parse2 || _load_parse2()).default)(rawLockfile, lockfileLoc);
-
-        if (reporter) {
-          if (parseResult.type === 'merge') {
-            reporter.info(reporter.lang('lockfileMerged'));
-          } else if (parseResult.type === 'conflict') {
-            reporter.warn(reporter.lang('lockfileConflict'));
-          }
-        }
-
-        lockfile = parseResult.object;
-      } else if (reporter) {
-        reporter.info(reporter.lang('noLockfileFound'));
-      }
-
-      if (lockfile && lockfile.__metadata) {
-        const lockfilev2 = lockfile;
-        lockfile = {};
-      }
-
-      return new Lockfile({ cache: lockfile, source: rawLockfile, parseResultType: parseResult && parseResult.type });
-    })();
-  }
-
-  getLocked(pattern) {
-    const cache = this.cache;
-    if (!cache) {
-      return undefined;
-    }
-
-    const shrunk = pattern in cache && cache[pattern];
-
-    if (typeof shrunk === 'string') {
-      return this.getLocked(shrunk);
-    } else if (shrunk) {
-      explodeEntry(pattern, shrunk);
-      return shrunk;
-    }
-
-    return undefined;
-  }
-
-  removePattern(pattern) {
-    const cache = this.cache;
-    if (!cache) {
-      return;
-    }
-    delete cache[pattern];
-  }
-
-  getLockfile(patterns) {
-    const lockfile = {};
-    const seen = new Map();
-
-    // order by name so that lockfile manifest is assigned to the first dependency with this manifest
-    // the others that have the same remoteKey will just refer to the first
-    // ordering allows for consistency in lockfile when it is serialized
-    const sortedPatternsKeys = Object.keys(patterns).sort((_misc || _load_misc()).sortAlpha);
-
-    for (var _iterator = sortedPatternsKeys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const pattern = _ref;
-
-      const pkg = patterns[pattern];
-      const remote = pkg._remote,
-            ref = pkg._reference;
-
-      invariant(ref, 'Package is missing a reference');
-      invariant(remote, 'Package is missing a remote');
-
-      const remoteKey = keyForRemote(remote);
-      const seenPattern = remoteKey && seen.get(remoteKey);
-      if (seenPattern) {
-        // no point in duplicating it
-        lockfile[pattern] = seenPattern;
-
-        // if we're relying on our name being inferred and two of the patterns have
-        // different inferred names then we need to set it
-        if (!seenPattern.name && getName(pattern) !== pkg.name) {
-          seenPattern.name = pkg.name;
-        }
-        continue;
-      }
-      const obj = implodeEntry(pattern, {
-        name: pkg.name,
-        version: pkg.version,
-        uid: pkg._uid,
-        resolved: remote.resolved,
-        integrity: remote.integrity,
-        registry: remote.registry,
-        dependencies: pkg.dependencies,
-        peerDependencies: pkg.peerDependencies,
-        optionalDependencies: pkg.optionalDependencies,
-        permissions: ref.permissions,
-        prebuilt2Variants: pkg.prebuilt2Variants
-      });
-
-      lockfile[pattern] = obj;
-
-      if (remoteKey) {
-        seen.set(remoteKey, obj);
-      }
-    }
-
-    return lockfile;
-  }
-}
-exports.default = Lockfile;
-
-/***/ }),
-/* 20 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var store = __webpack_require__(133)('wks');
-var uid = __webpack_require__(137);
-var Symbol = __webpack_require__(17).Symbol;
-var USE_SYMBOL = typeof Symbol == 'function';
-
-var $exports = module.exports = function (name) {
-  return store[name] || (store[name] =
-    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
-};
-
-$exports.store = store;
-
-
-/***/ }),
-/* 21 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-exports.__esModule = true;
-
-var _assign = __webpack_require__(591);
-
-var _assign2 = _interopRequireDefault(_assign);
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-exports.default = _assign2.default || function (target) {
-  for (var i = 1; i < arguments.length; i++) {
-    var source = arguments[i];
-
-    for (var key in source) {
-      if (Object.prototype.hasOwnProperty.call(source, key)) {
-        target[key] = source[key];
-      }
-    }
-  }
-
-  return target;
-};
-
-/***/ }),
-/* 22 */
-/***/ (function(module, exports) {
-
-exports = module.exports = SemVer;
-
-// The debug function is excluded entirely from the minified version.
-/* nomin */ var debug;
-/* nomin */ if (typeof process === 'object' &&
-    /* nomin */ process.env &&
-    /* nomin */ process.env.NODE_DEBUG &&
-    /* nomin */ /\bsemver\b/i.test(process.env.NODE_DEBUG))
-  /* nomin */ debug = function() {
-    /* nomin */ var args = Array.prototype.slice.call(arguments, 0);
-    /* nomin */ args.unshift('SEMVER');
-    /* nomin */ console.log.apply(console, args);
-    /* nomin */ };
-/* nomin */ else
-  /* nomin */ debug = function() {};
-
-// Note: this is the semver.org version of the spec that it implements
-// Not necessarily the package version of this code.
-exports.SEMVER_SPEC_VERSION = '2.0.0';
-
-var MAX_LENGTH = 256;
-var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
-
-// Max safe segment length for coercion.
-var MAX_SAFE_COMPONENT_LENGTH = 16;
-
-// The actual regexps go on exports.re
-var re = exports.re = [];
-var src = exports.src = [];
-var R = 0;
-
-// The following Regular Expressions can be used for tokenizing,
-// validating, and parsing SemVer version strings.
-
-// ## Numeric Identifier
-// A single `0`, or a non-zero digit followed by zero or more digits.
-
-var NUMERICIDENTIFIER = R++;
-src[NUMERICIDENTIFIER] = '0|[1-9]\\d*';
-var NUMERICIDENTIFIERLOOSE = R++;
-src[NUMERICIDENTIFIERLOOSE] = '[0-9]+';
-
-
-// ## Non-numeric Identifier
-// Zero or more digits, followed by a letter or hyphen, and then zero or
-// more letters, digits, or hyphens.
-
-var NONNUMERICIDENTIFIER = R++;
-src[NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*';
-
-
-// ## Main Version
-// Three dot-separated numeric identifiers.
-
-var MAINVERSION = R++;
-src[MAINVERSION] = '(' + src[NUMERICIDENTIFIER] + ')\\.' +
-                   '(' + src[NUMERICIDENTIFIER] + ')\\.' +
-                   '(' + src[NUMERICIDENTIFIER] + ')';
-
-var MAINVERSIONLOOSE = R++;
-src[MAINVERSIONLOOSE] = '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
-                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')\\.' +
-                        '(' + src[NUMERICIDENTIFIERLOOSE] + ')';
-
-// ## Pre-release Version Identifier
-// A numeric identifier, or a non-numeric identifier.
-
-var PRERELEASEIDENTIFIER = R++;
-src[PRERELEASEIDENTIFIER] = '(?:' + src[NUMERICIDENTIFIER] +
-                            '|' + src[NONNUMERICIDENTIFIER] + ')';
-
-var PRERELEASEIDENTIFIERLOOSE = R++;
-src[PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[NUMERICIDENTIFIERLOOSE] +
-                                 '|' + src[NONNUMERICIDENTIFIER] + ')';
-
-
-// ## Pre-release Version
-// Hyphen, followed by one or more dot-separated pre-release version
-// identifiers.
-
-var PRERELEASE = R++;
-src[PRERELEASE] = '(?:-(' + src[PRERELEASEIDENTIFIER] +
-                  '(?:\\.' + src[PRERELEASEIDENTIFIER] + ')*))';
-
-var PRERELEASELOOSE = R++;
-src[PRERELEASELOOSE] = '(?:-?(' + src[PRERELEASEIDENTIFIERLOOSE] +
-                       '(?:\\.' + src[PRERELEASEIDENTIFIERLOOSE] + ')*))';
-
-// ## Build Metadata Identifier
-// Any combination of digits, letters, or hyphens.
-
-var BUILDIDENTIFIER = R++;
-src[BUILDIDENTIFIER] = '[0-9A-Za-z-]+';
-
-// ## Build Metadata
-// Plus sign, followed by one or more period-separated build metadata
-// identifiers.
-
-var BUILD = R++;
-src[BUILD] = '(?:\\+(' + src[BUILDIDENTIFIER] +
-             '(?:\\.' + src[BUILDIDENTIFIER] + ')*))';
-
-
-// ## Full Version String
-// A main version, followed optionally by a pre-release version and
-// build metadata.
-
-// Note that the only major, minor, patch, and pre-release sections of
-// the version string are capturing groups.  The build metadata is not a
-// capturing group, because it should not ever be used in version
-// comparison.
-
-var FULL = R++;
-var FULLPLAIN = 'v?' + src[MAINVERSION] +
-                src[PRERELEASE] + '?' +
-                src[BUILD] + '?';
-
-src[FULL] = '^' + FULLPLAIN + '$';
-
-// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
-// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
-// common in the npm registry.
-var LOOSEPLAIN = '[v=\\s]*' + src[MAINVERSIONLOOSE] +
-                 src[PRERELEASELOOSE] + '?' +
-                 src[BUILD] + '?';
-
-var LOOSE = R++;
-src[LOOSE] = '^' + LOOSEPLAIN + '$';
-
-var GTLT = R++;
-src[GTLT] = '((?:<|>)?=?)';
-
-// Something like "2.*" or "1.2.x".
-// Note that "x.x" is a valid xRange identifer, meaning "any version"
-// Only the first item is strictly required.
-var XRANGEIDENTIFIERLOOSE = R++;
-src[XRANGEIDENTIFIERLOOSE] = src[NUMERICIDENTIFIERLOOSE] + '|x|X|\\*';
-var XRANGEIDENTIFIER = R++;
-src[XRANGEIDENTIFIER] = src[NUMERICIDENTIFIER] + '|x|X|\\*';
-
-var XRANGEPLAIN = R++;
-src[XRANGEPLAIN] = '[v=\\s]*(' + src[XRANGEIDENTIFIER] + ')' +
-                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
-                   '(?:\\.(' + src[XRANGEIDENTIFIER] + ')' +
-                   '(?:' + src[PRERELEASE] + ')?' +
-                   src[BUILD] + '?' +
-                   ')?)?';
-
-var XRANGEPLAINLOOSE = R++;
-src[XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
-                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
-                        '(?:\\.(' + src[XRANGEIDENTIFIERLOOSE] + ')' +
-                        '(?:' + src[PRERELEASELOOSE] + ')?' +
-                        src[BUILD] + '?' +
-                        ')?)?';
-
-var XRANGE = R++;
-src[XRANGE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAIN] + '$';
-var XRANGELOOSE = R++;
-src[XRANGELOOSE] = '^' + src[GTLT] + '\\s*' + src[XRANGEPLAINLOOSE] + '$';
-
-// Coercion.
-// Extract anything that could conceivably be a part of a valid semver
-var COERCE = R++;
-src[COERCE] = '(?:^|[^\\d])' +
-              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
-              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
-              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
-              '(?:$|[^\\d])';
-
-// Tilde ranges.
-// Meaning is "reasonably at or greater than"
-var LONETILDE = R++;
-src[LONETILDE] = '(?:~>?)';
-
-var TILDETRIM = R++;
-src[TILDETRIM] = '(\\s*)' + src[LONETILDE] + '\\s+';
-re[TILDETRIM] = new RegExp(src[TILDETRIM], 'g');
-var tildeTrimReplace = '$1~';
-
-var TILDE = R++;
-src[TILDE] = '^' + src[LONETILDE] + src[XRANGEPLAIN] + '$';
-var TILDELOOSE = R++;
-src[TILDELOOSE] = '^' + src[LONETILDE] + src[XRANGEPLAINLOOSE] + '$';
-
-// Caret ranges.
-// Meaning is "at least and backwards compatible with"
-var LONECARET = R++;
-src[LONECARET] = '(?:\\^)';
-
-var CARETTRIM = R++;
-src[CARETTRIM] = '(\\s*)' + src[LONECARET] + '\\s+';
-re[CARETTRIM] = new RegExp(src[CARETTRIM], 'g');
-var caretTrimReplace = '$1^';
-
-var CARET = R++;
-src[CARET] = '^' + src[LONECARET] + src[XRANGEPLAIN] + '$';
-var CARETLOOSE = R++;
-src[CARETLOOSE] = '^' + src[LONECARET] + src[XRANGEPLAINLOOSE] + '$';
-
-// A simple gt/lt/eq thing, or just "" to indicate "any version"
-var COMPARATORLOOSE = R++;
-src[COMPARATORLOOSE] = '^' + src[GTLT] + '\\s*(' + LOOSEPLAIN + ')$|^$';
-var COMPARATOR = R++;
-src[COMPARATOR] = '^' + src[GTLT] + '\\s*(' + FULLPLAIN + ')$|^$';
-
-
-// An expression to strip any whitespace between the gtlt and the thing
-// it modifies, so that `> 1.2.3` ==> `>1.2.3`
-var COMPARATORTRIM = R++;
-src[COMPARATORTRIM] = '(\\s*)' + src[GTLT] +
-                      '\\s*(' + LOOSEPLAIN + '|' + src[XRANGEPLAIN] + ')';
-
-// this one has to use the /g flag
-re[COMPARATORTRIM] = new RegExp(src[COMPARATORTRIM], 'g');
-var comparatorTrimReplace = '$1$2$3';
-
-
-// Something like `1.2.3 - 1.2.4`
-// Note that these all use the loose form, because they'll be
-// checked against either the strict or loose comparator form
-// later.
-var HYPHENRANGE = R++;
-src[HYPHENRANGE] = '^\\s*(' + src[XRANGEPLAIN] + ')' +
-                   '\\s+-\\s+' +
-                   '(' + src[XRANGEPLAIN] + ')' +
-                   '\\s*$';
-
-var HYPHENRANGELOOSE = R++;
-src[HYPHENRANGELOOSE] = '^\\s*(' + src[XRANGEPLAINLOOSE] + ')' +
-                        '\\s+-\\s+' +
-                        '(' + src[XRANGEPLAINLOOSE] + ')' +
-                        '\\s*$';
-
-// Star ranges basically just allow anything at all.
-var STAR = R++;
-src[STAR] = '(<|>)?=?\\s*\\*';
-
-// Compile to actual regexp objects.
-// All are flag-free, unless they were created above with a flag.
-for (var i = 0; i < R; i++) {
-  debug(i, src[i]);
-  if (!re[i])
-    re[i] = new RegExp(src[i]);
-}
-
-exports.parse = parse;
-function parse(version, loose) {
-  if (version instanceof SemVer)
-    return version;
-
-  if (typeof version !== 'string')
-    return null;
-
-  if (version.length > MAX_LENGTH)
-    return null;
-
-  var r = loose ? re[LOOSE] : re[FULL];
-  if (!r.test(version))
-    return null;
-
-  try {
-    return new SemVer(version, loose);
-  } catch (er) {
-    return null;
-  }
-}
-
-exports.valid = valid;
-function valid(version, loose) {
-  var v = parse(version, loose);
-  return v ? v.version : null;
-}
-
-
-exports.clean = clean;
-function clean(version, loose) {
-  var s = parse(version.trim().replace(/^[=v]+/, ''), loose);
-  return s ? s.version : null;
-}
-
-exports.SemVer = SemVer;
-
-function SemVer(version, loose) {
-  if (version instanceof SemVer) {
-    if (version.loose === loose)
-      return version;
-    else
-      version = version.version;
-  } else if (typeof version !== 'string') {
-    throw new TypeError('Invalid Version: ' + version);
-  }
-
-  if (version.length > MAX_LENGTH)
-    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
-
-  if (!(this instanceof SemVer))
-    return new SemVer(version, loose);
-
-  debug('SemVer', version, loose);
-  this.loose = loose;
-  var m = version.trim().match(loose ? re[LOOSE] : re[FULL]);
-
-  if (!m)
-    throw new TypeError('Invalid Version: ' + version);
-
-  this.raw = version;
-
-  // these are actually numbers
-  this.major = +m[1];
-  this.minor = +m[2];
-  this.patch = +m[3];
-
-  if (this.major > MAX_SAFE_INTEGER || this.major < 0)
-    throw new TypeError('Invalid major version')
-
-  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0)
-    throw new TypeError('Invalid minor version')
-
-  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0)
-    throw new TypeError('Invalid patch version')
-
-  // numberify any prerelease numeric ids
-  if (!m[4])
-    this.prerelease = [];
-  else
-    this.prerelease = m[4].split('.').map(function(id) {
-      if (/^[0-9]+$/.test(id)) {
-        var num = +id;
-        if (num >= 0 && num < MAX_SAFE_INTEGER)
-          return num;
-      }
-      return id;
-    });
-
-  this.build = m[5] ? m[5].split('.') : [];
-  this.format();
-}
-
-SemVer.prototype.format = function() {
-  this.version = this.major + '.' + this.minor + '.' + this.patch;
-  if (this.prerelease.length)
-    this.version += '-' + this.prerelease.join('.');
-  return this.version;
-};
-
-SemVer.prototype.toString = function() {
-  return this.version;
-};
-
-SemVer.prototype.compare = function(other) {
-  debug('SemVer.compare', this.version, this.loose, other);
-  if (!(other instanceof SemVer))
-    other = new SemVer(other, this.loose);
-
-  return this.compareMain(other) || this.comparePre(other);
-};
-
-SemVer.prototype.compareMain = function(other) {
-  if (!(other instanceof SemVer))
-    other = new SemVer(other, this.loose);
-
-  return compareIdentifiers(this.major, other.major) ||
-         compareIdentifiers(this.minor, other.minor) ||
-         compareIdentifiers(this.patch, other.patch);
-};
-
-SemVer.prototype.comparePre = function(other) {
-  if (!(other instanceof SemVer))
-    other = new SemVer(other, this.loose);
-
-  // NOT having a prerelease is > having one
-  if (this.prerelease.length && !other.prerelease.length)
-    return -1;
-  else if (!this.prerelease.length && other.prerelease.length)
-    return 1;
-  else if (!this.prerelease.length && !other.prerelease.length)
-    return 0;
-
-  var i = 0;
-  do {
-    var a = this.prerelease[i];
-    var b = other.prerelease[i];
-    debug('prerelease compare', i, a, b);
-    if (a === undefined && b === undefined)
-      return 0;
-    else if (b === undefined)
-      return 1;
-    else if (a === undefined)
-      return -1;
-    else if (a === b)
-      continue;
-    else
-      return compareIdentifiers(a, b);
-  } while (++i);
-};
-
-// preminor will bump the version up to the next minor release, and immediately
-// down to pre-release. premajor and prepatch work the same way.
-SemVer.prototype.inc = function(release, identifier) {
-  switch (release) {
-    case 'premajor':
-      this.prerelease.length = 0;
-      this.patch = 0;
-      this.minor = 0;
-      this.major++;
-      this.inc('pre', identifier);
-      break;
-    case 'preminor':
-      this.prerelease.length = 0;
-      this.patch = 0;
-      this.minor++;
-      this.inc('pre', identifier);
-      break;
-    case 'prepatch':
-      // If this is already a prerelease, it will bump to the next version
-      // drop any prereleases that might already exist, since they are not
-      // relevant at this point.
-      this.prerelease.length = 0;
-      this.inc('patch', identifier);
-      this.inc('pre', identifier);
-      break;
-    // If the input is a non-prerelease version, this acts the same as
-    // prepatch.
-    case 'prerelease':
-      if (this.prerelease.length === 0)
-        this.inc('patch', identifier);
-      this.inc('pre', identifier);
-      break;
-
-    case 'major':
-      // If this is a pre-major version, bump up to the same major version.
-      // Otherwise increment major.
-      // 1.0.0-5 bumps to 1.0.0
-      // 1.1.0 bumps to 2.0.0
-      if (this.minor !== 0 || this.patch !== 0 || this.prerelease.length === 0)
-        this.major++;
-      this.minor = 0;
-      this.patch = 0;
-      this.prerelease = [];
-      break;
-    case 'minor':
-      // If this is a pre-minor version, bump up to the same minor version.
-      // Otherwise increment minor.
-      // 1.2.0-5 bumps to 1.2.0
-      // 1.2.1 bumps to 1.3.0
-      if (this.patch !== 0 || this.prerelease.length === 0)
-        this.minor++;
-      this.patch = 0;
-      this.prerelease = [];
-      break;
-    case 'patch':
-      // If this is not a pre-release version, it will increment the patch.
-      // If it is a pre-release it will bump up to the same patch version.
-      // 1.2.0-5 patches to 1.2.0
-      // 1.2.0 patches to 1.2.1
-      if (this.prerelease.length === 0)
-        this.patch++;
-      this.prerelease = [];
-      break;
-    // This probably shouldn't be used publicly.
-    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
-    case 'pre':
-      if (this.prerelease.length === 0)
-        this.prerelease = [0];
-      else {
-        var i = this.prerelease.length;
-        while (--i >= 0) {
-          if (typeof this.prerelease[i] === 'number') {
-            this.prerelease[i]++;
-            i = -2;
-          }
-        }
-        if (i === -1) // didn't increment anything
-          this.prerelease.push(0);
-      }
-      if (identifier) {
-        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
-        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
-        if (this.prerelease[0] === identifier) {
-          if (isNaN(this.prerelease[1]))
-            this.prerelease = [identifier, 0];
-        } else
-          this.prerelease = [identifier, 0];
-      }
-      break;
-
-    default:
-      throw new Error('invalid increment argument: ' + release);
-  }
-  this.format();
-  this.raw = this.version;
-  return this;
-};
-
-exports.inc = inc;
-function inc(version, release, loose, identifier) {
-  if (typeof(loose) === 'string') {
-    identifier = loose;
-    loose = undefined;
-  }
-
-  try {
-    return new SemVer(version, loose).inc(release, identifier).version;
-  } catch (er) {
-    return null;
-  }
-}
-
-exports.diff = diff;
-function diff(version1, version2) {
-  if (eq(version1, version2)) {
-    return null;
-  } else {
-    var v1 = parse(version1);
-    var v2 = parse(version2);
-    if (v1.prerelease.length || v2.prerelease.length) {
-      for (var key in v1) {
-        if (key === 'major' || key === 'minor' || key === 'patch') {
-          if (v1[key] !== v2[key]) {
-            return 'pre'+key;
-          }
-        }
-      }
-      return 'prerelease';
-    }
-    for (var key in v1) {
-      if (key === 'major' || key === 'minor' || key === 'patch') {
-        if (v1[key] !== v2[key]) {
-          return key;
-        }
-      }
-    }
-  }
-}
-
-exports.compareIdentifiers = compareIdentifiers;
-
-var numeric = /^[0-9]+$/;
-function compareIdentifiers(a, b) {
-  var anum = numeric.test(a);
-  var bnum = numeric.test(b);
-
-  if (anum && bnum) {
-    a = +a;
-    b = +b;
-  }
-
-  return (anum && !bnum) ? -1 :
-         (bnum && !anum) ? 1 :
-         a < b ? -1 :
-         a > b ? 1 :
-         0;
-}
-
-exports.rcompareIdentifiers = rcompareIdentifiers;
-function rcompareIdentifiers(a, b) {
-  return compareIdentifiers(b, a);
-}
-
-exports.major = major;
-function major(a, loose) {
-  return new SemVer(a, loose).major;
-}
-
-exports.minor = minor;
-function minor(a, loose) {
-  return new SemVer(a, loose).minor;
-}
-
-exports.patch = patch;
-function patch(a, loose) {
-  return new SemVer(a, loose).patch;
-}
-
-exports.compare = compare;
-function compare(a, b, loose) {
-  return new SemVer(a, loose).compare(new SemVer(b, loose));
-}
-
-exports.compareLoose = compareLoose;
-function compareLoose(a, b) {
-  return compare(a, b, true);
-}
-
-exports.rcompare = rcompare;
-function rcompare(a, b, loose) {
-  return compare(b, a, loose);
-}
-
-exports.sort = sort;
-function sort(list, loose) {
-  return list.sort(function(a, b) {
-    return exports.compare(a, b, loose);
-  });
-}
-
-exports.rsort = rsort;
-function rsort(list, loose) {
-  return list.sort(function(a, b) {
-    return exports.rcompare(a, b, loose);
-  });
-}
-
-exports.gt = gt;
-function gt(a, b, loose) {
-  return compare(a, b, loose) > 0;
-}
-
-exports.lt = lt;
-function lt(a, b, loose) {
-  return compare(a, b, loose) < 0;
-}
-
-exports.eq = eq;
-function eq(a, b, loose) {
-  return compare(a, b, loose) === 0;
-}
-
-exports.neq = neq;
-function neq(a, b, loose) {
-  return compare(a, b, loose) !== 0;
-}
-
-exports.gte = gte;
-function gte(a, b, loose) {
-  return compare(a, b, loose) >= 0;
-}
-
-exports.lte = lte;
-function lte(a, b, loose) {
-  return compare(a, b, loose) <= 0;
-}
-
-exports.cmp = cmp;
-function cmp(a, op, b, loose) {
-  var ret;
-  switch (op) {
-    case '===':
-      if (typeof a === 'object') a = a.version;
-      if (typeof b === 'object') b = b.version;
-      ret = a === b;
-      break;
-    case '!==':
-      if (typeof a === 'object') a = a.version;
-      if (typeof b === 'object') b = b.version;
-      ret = a !== b;
-      break;
-    case '': case '=': case '==': ret = eq(a, b, loose); break;
-    case '!=': ret = neq(a, b, loose); break;
-    case '>': ret = gt(a, b, loose); break;
-    case '>=': ret = gte(a, b, loose); break;
-    case '<': ret = lt(a, b, loose); break;
-    case '<=': ret = lte(a, b, loose); break;
-    default: throw new TypeError('Invalid operator: ' + op);
-  }
-  return ret;
-}
-
-exports.Comparator = Comparator;
-function Comparator(comp, loose) {
-  if (comp instanceof Comparator) {
-    if (comp.loose === loose)
-      return comp;
-    else
-      comp = comp.value;
-  }
-
-  if (!(this instanceof Comparator))
-    return new Comparator(comp, loose);
-
-  debug('comparator', comp, loose);
-  this.loose = loose;
-  this.parse(comp);
-
-  if (this.semver === ANY)
-    this.value = '';
-  else
-    this.value = this.operator + this.semver.version;
-
-  debug('comp', this);
-}
-
-var ANY = {};
-Comparator.prototype.parse = function(comp) {
-  var r = this.loose ? re[COMPARATORLOOSE] : re[COMPARATOR];
-  var m = comp.match(r);
-
-  if (!m)
-    throw new TypeError('Invalid comparator: ' + comp);
-
-  this.operator = m[1];
-  if (this.operator === '=')
-    this.operator = '';
-
-  // if it literally is just '>' or '' then allow anything.
-  if (!m[2])
-    this.semver = ANY;
-  else
-    this.semver = new SemVer(m[2], this.loose);
-};
-
-Comparator.prototype.toString = function() {
-  return this.value;
-};
-
-Comparator.prototype.test = function(version) {
-  debug('Comparator.test', version, this.loose);
-
-  if (this.semver === ANY)
-    return true;
-
-  if (typeof version === 'string')
-    version = new SemVer(version, this.loose);
-
-  return cmp(version, this.operator, this.semver, this.loose);
-};
-
-Comparator.prototype.intersects = function(comp, loose) {
-  if (!(comp instanceof Comparator)) {
-    throw new TypeError('a Comparator is required');
-  }
-
-  var rangeTmp;
-
-  if (this.operator === '') {
-    rangeTmp = new Range(comp.value, loose);
-    return satisfies(this.value, rangeTmp, loose);
-  } else if (comp.operator === '') {
-    rangeTmp = new Range(this.value, loose);
-    return satisfies(comp.semver, rangeTmp, loose);
-  }
-
-  var sameDirectionIncreasing =
-    (this.operator === '>=' || this.operator === '>') &&
-    (comp.operator === '>=' || comp.operator === '>');
-  var sameDirectionDecreasing =
-    (this.operator === '<=' || this.operator === '<') &&
-    (comp.operator === '<=' || comp.operator === '<');
-  var sameSemVer = this.semver.version === comp.semver.version;
-  var differentDirectionsInclusive =
-    (this.operator === '>=' || this.operator === '<=') &&
-    (comp.operator === '>=' || comp.operator === '<=');
-  var oppositeDirectionsLessThan =
-    cmp(this.semver, '<', comp.semver, loose) &&
-    ((this.operator === '>=' || this.operator === '>') &&
-    (comp.operator === '<=' || comp.operator === '<'));
-  var oppositeDirectionsGreaterThan =
-    cmp(this.semver, '>', comp.semver, loose) &&
-    ((this.operator === '<=' || this.operator === '<') &&
-    (comp.operator === '>=' || comp.operator === '>'));
-
-  return sameDirectionIncreasing || sameDirectionDecreasing ||
-    (sameSemVer && differentDirectionsInclusive) ||
-    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan;
-};
-
-
-exports.Range = Range;
-function Range(range, loose) {
-  if (range instanceof Range) {
-    if (range.loose === loose) {
-      return range;
-    } else {
-      return new Range(range.raw, loose);
-    }
-  }
-
-  if (range instanceof Comparator) {
-    return new Range(range.value, loose);
-  }
-
-  if (!(this instanceof Range))
-    return new Range(range, loose);
-
-  this.loose = loose;
-
-  // First, split based on boolean or ||
-  this.raw = range;
-  this.set = range.split(/\s*\|\|\s*/).map(function(range) {
-    return this.parseRange(range.trim());
-  }, this).filter(function(c) {
-    // throw out any that are not relevant for whatever reason
-    return c.length;
-  });
-
-  if (!this.set.length) {
-    throw new TypeError('Invalid SemVer Range: ' + range);
-  }
-
-  this.format();
-}
-
-Range.prototype.format = function() {
-  this.range = this.set.map(function(comps) {
-    return comps.join(' ').trim();
-  }).join('||').trim();
-  return this.range;
-};
-
-Range.prototype.toString = function() {
-  return this.range;
-};
-
-Range.prototype.parseRange = function(range) {
-  var loose = this.loose;
-  range = range.trim();
-  debug('range', range, loose);
-  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
-  var hr = loose ? re[HYPHENRANGELOOSE] : re[HYPHENRANGE];
-  range = range.replace(hr, hyphenReplace);
-  debug('hyphen replace', range);
-  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
-  range = range.replace(re[COMPARATORTRIM], comparatorTrimReplace);
-  debug('comparator trim', range, re[COMPARATORTRIM]);
-
-  // `~ 1.2.3` => `~1.2.3`
-  range = range.replace(re[TILDETRIM], tildeTrimReplace);
-
-  // `^ 1.2.3` => `^1.2.3`
-  range = range.replace(re[CARETTRIM], caretTrimReplace);
-
-  // normalize spaces
-  range = range.split(/\s+/).join(' ');
-
-  // At this point, the range is completely trimmed and
-  // ready to be split into comparators.
-
-  var compRe = loose ? re[COMPARATORLOOSE] : re[COMPARATOR];
-  var set = range.split(' ').map(function(comp) {
-    return parseComparator(comp, loose);
-  }).join(' ').split(/\s+/);
-  if (this.loose) {
-    // in loose mode, throw out any that are not valid comparators
-    set = set.filter(function(comp) {
-      return !!comp.match(compRe);
-    });
-  }
-  set = set.map(function(comp) {
-    return new Comparator(comp, loose);
-  });
-
-  return set;
-};
-
-Range.prototype.intersects = function(range, loose) {
-  if (!(range instanceof Range)) {
-    throw new TypeError('a Range is required');
-  }
-
-  return this.set.some(function(thisComparators) {
-    return thisComparators.every(function(thisComparator) {
-      return range.set.some(function(rangeComparators) {
-        return rangeComparators.every(function(rangeComparator) {
-          return thisComparator.intersects(rangeComparator, loose);
-        });
-      });
-    });
-  });
-};
-
-// Mostly just for testing and legacy API reasons
-exports.toComparators = toComparators;
-function toComparators(range, loose) {
-  return new Range(range, loose).set.map(function(comp) {
-    return comp.map(function(c) {
-      return c.value;
-    }).join(' ').trim().split(' ');
-  });
-}
-
-// comprised of xranges, tildes, stars, and gtlt's at this point.
-// already replaced the hyphen ranges
-// turn into a set of JUST comparators.
-function parseComparator(comp, loose) {
-  debug('comp', comp);
-  comp = replaceCarets(comp, loose);
-  debug('caret', comp);
-  comp = replaceTildes(comp, loose);
-  debug('tildes', comp);
-  comp = replaceXRanges(comp, loose);
-  debug('xrange', comp);
-  comp = replaceStars(comp, loose);
-  debug('stars', comp);
-  return comp;
-}
-
-function isX(id) {
-  return !id || id.toLowerCase() === 'x' || id === '*';
-}
-
-// ~, ~> --> * (any, kinda silly)
-// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
-// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
-// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
-// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
-// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
-function replaceTildes(comp, loose) {
-  return comp.trim().split(/\s+/).map(function(comp) {
-    return replaceTilde(comp, loose);
-  }).join(' ');
-}
-
-function replaceTilde(comp, loose) {
-  var r = loose ? re[TILDELOOSE] : re[TILDE];
-  return comp.replace(r, function(_, M, m, p, pr) {
-    debug('tilde', comp, _, M, m, p, pr);
-    var ret;
-
-    if (isX(M))
-      ret = '';
-    else if (isX(m))
-      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
-    else if (isX(p))
-      // ~1.2 == >=1.2.0 <1.3.0
-      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
-    else if (pr) {
-      debug('replaceTilde pr', pr);
-      if (pr.charAt(0) !== '-')
-        pr = '-' + pr;
-      ret = '>=' + M + '.' + m + '.' + p + pr +
-            ' <' + M + '.' + (+m + 1) + '.0';
-    } else
-      // ~1.2.3 == >=1.2.3 <1.3.0
-      ret = '>=' + M + '.' + m + '.' + p +
-            ' <' + M + '.' + (+m + 1) + '.0';
-
-    debug('tilde return', ret);
-    return ret;
-  });
-}
-
-// ^ --> * (any, kinda silly)
-// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
-// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
-// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
-// ^1.2.3 --> >=1.2.3 <2.0.0
-// ^1.2.0 --> >=1.2.0 <2.0.0
-function replaceCarets(comp, loose) {
-  return comp.trim().split(/\s+/).map(function(comp) {
-    return replaceCaret(comp, loose);
-  }).join(' ');
-}
-
-function replaceCaret(comp, loose) {
-  debug('caret', comp, loose);
-  var r = loose ? re[CARETLOOSE] : re[CARET];
-  return comp.replace(r, function(_, M, m, p, pr) {
-    debug('caret', comp, _, M, m, p, pr);
-    var ret;
-
-    if (isX(M))
-      ret = '';
-    else if (isX(m))
-      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
-    else if (isX(p)) {
-      if (M === '0')
-        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
-      else
-        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0';
-    } else if (pr) {
-      debug('replaceCaret pr', pr);
-      if (pr.charAt(0) !== '-')
-        pr = '-' + pr;
-      if (M === '0') {
-        if (m === '0')
-          ret = '>=' + M + '.' + m + '.' + p + pr +
-                ' <' + M + '.' + m + '.' + (+p + 1);
-        else
-          ret = '>=' + M + '.' + m + '.' + p + pr +
-                ' <' + M + '.' + (+m + 1) + '.0';
-      } else
-        ret = '>=' + M + '.' + m + '.' + p + pr +
-              ' <' + (+M + 1) + '.0.0';
-    } else {
-      debug('no pr');
-      if (M === '0') {
-        if (m === '0')
-          ret = '>=' + M + '.' + m + '.' + p +
-                ' <' + M + '.' + m + '.' + (+p + 1);
-        else
-          ret = '>=' + M + '.' + m + '.' + p +
-                ' <' + M + '.' + (+m + 1) + '.0';
-      } else
-        ret = '>=' + M + '.' + m + '.' + p +
-              ' <' + (+M + 1) + '.0.0';
-    }
-
-    debug('caret return', ret);
-    return ret;
-  });
-}
-
-function replaceXRanges(comp, loose) {
-  debug('replaceXRanges', comp, loose);
-  return comp.split(/\s+/).map(function(comp) {
-    return replaceXRange(comp, loose);
-  }).join(' ');
-}
-
-function replaceXRange(comp, loose) {
-  comp = comp.trim();
-  var r = loose ? re[XRANGELOOSE] : re[XRANGE];
-  return comp.replace(r, function(ret, gtlt, M, m, p, pr) {
-    debug('xRange', comp, ret, gtlt, M, m, p, pr);
-    var xM = isX(M);
-    var xm = xM || isX(m);
-    var xp = xm || isX(p);
-    var anyX = xp;
-
-    if (gtlt === '=' && anyX)
-      gtlt = '';
-
-    if (xM) {
-      if (gtlt === '>' || gtlt === '<') {
-        // nothing is allowed
-        ret = '<0.0.0';
-      } else {
-        // nothing is forbidden
-        ret = '*';
-      }
-    } else if (gtlt && anyX) {
-      // replace X with 0
-      if (xm)
-        m = 0;
-      if (xp)
-        p = 0;
-
-      if (gtlt === '>') {
-        // >1 => >=2.0.0
-        // >1.2 => >=1.3.0
-        // >1.2.3 => >= 1.2.4
-        gtlt = '>=';
-        if (xm) {
-          M = +M + 1;
-          m = 0;
-          p = 0;
-        } else if (xp) {
-          m = +m + 1;
-          p = 0;
-        }
-      } else if (gtlt === '<=') {
-        // <=0.7.x is actually <0.8.0, since any 0.7.x should
-        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
-        gtlt = '<';
-        if (xm)
-          M = +M + 1;
-        else
-          m = +m + 1;
-      }
-
-      ret = gtlt + M + '.' + m + '.' + p;
-    } else if (xm) {
-      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
-    } else if (xp) {
-      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
-    }
-
-    debug('xRange return', ret);
-
-    return ret;
-  });
-}
-
-// Because * is AND-ed with everything else in the comparator,
-// and '' means "any version", just remove the *s entirely.
-function replaceStars(comp, loose) {
-  debug('replaceStars', comp, loose);
-  // Looseness is ignored here.  star is always as loose as it gets!
-  return comp.trim().replace(re[STAR], '');
-}
-
-// This function is passed to string.replace(re[HYPHENRANGE])
-// M, m, patch, prerelease, build
-// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
-// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
-// 1.2 - 3.4 => >=1.2.0 <3.5.0
-function hyphenReplace($0,
-                       from, fM, fm, fp, fpr, fb,
-                       to, tM, tm, tp, tpr, tb) {
-
-  if (isX(fM))
-    from = '';
-  else if (isX(fm))
-    from = '>=' + fM + '.0.0';
-  else if (isX(fp))
-    from = '>=' + fM + '.' + fm + '.0';
-  else
-    from = '>=' + from;
-
-  if (isX(tM))
-    to = '';
-  else if (isX(tm))
-    to = '<' + (+tM + 1) + '.0.0';
-  else if (isX(tp))
-    to = '<' + tM + '.' + (+tm + 1) + '.0';
-  else if (tpr)
-    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr;
-  else
-    to = '<=' + to;
-
-  return (from + ' ' + to).trim();
-}
-
-
-// if ANY of the sets match ALL of its comparators, then pass
-Range.prototype.test = function(version) {
-  if (!version)
-    return false;
-
-  if (typeof version === 'string')
-    version = new SemVer(version, this.loose);
-
-  for (var i = 0; i < this.set.length; i++) {
-    if (testSet(this.set[i], version))
-      return true;
-  }
-  return false;
-};
-
-function testSet(set, version) {
-  for (var i = 0; i < set.length; i++) {
-    if (!set[i].test(version))
-      return false;
-  }
-
-  if (version.prerelease.length) {
-    // Find the set of versions that are allowed to have prereleases
-    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
-    // That should allow `1.2.3-pr.2` to pass.
-    // However, `1.2.4-alpha.notready` should NOT be allowed,
-    // even though it's within the range set by the comparators.
-    for (var i = 0; i < set.length; i++) {
-      debug(set[i].semver);
-      if (set[i].semver === ANY)
-        continue;
-
-      if (set[i].semver.prerelease.length > 0) {
-        var allowed = set[i].semver;
-        if (allowed.major === version.major &&
-            allowed.minor === version.minor &&
-            allowed.patch === version.patch)
-          return true;
-      }
-    }
-
-    // Version has a -pre, but it's not one of the ones we like.
-    return false;
-  }
-
-  return true;
-}
-
-exports.satisfies = satisfies;
-function satisfies(version, range, loose) {
-  try {
-    range = new Range(range, loose);
-  } catch (er) {
-    return false;
-  }
-  return range.test(version);
-}
-
-exports.maxSatisfying = maxSatisfying;
-function maxSatisfying(versions, range, loose) {
-  var max = null;
-  var maxSV = null;
-  try {
-    var rangeObj = new Range(range, loose);
-  } catch (er) {
-    return null;
-  }
-  versions.forEach(function (v) {
-    if (rangeObj.test(v)) { // satisfies(v, range, loose)
-      if (!max || maxSV.compare(v) === -1) { // compare(max, v, true)
-        max = v;
-        maxSV = new SemVer(max, loose);
-      }
-    }
-  })
-  return max;
-}
-
-exports.minSatisfying = minSatisfying;
-function minSatisfying(versions, range, loose) {
-  var min = null;
-  var minSV = null;
-  try {
-    var rangeObj = new Range(range, loose);
-  } catch (er) {
-    return null;
-  }
-  versions.forEach(function (v) {
-    if (rangeObj.test(v)) { // satisfies(v, range, loose)
-      if (!min || minSV.compare(v) === 1) { // compare(min, v, true)
-        min = v;
-        minSV = new SemVer(min, loose);
-      }
-    }
-  })
-  return min;
-}
-
-exports.validRange = validRange;
-function validRange(range, loose) {
-  try {
-    // Return '*' instead of '' so that truthiness works.
-    // This will throw if it's invalid anyway
-    return new Range(range, loose).range || '*';
-  } catch (er) {
-    return null;
-  }
-}
-
-// Determine if version is less than all the versions possible in the range
-exports.ltr = ltr;
-function ltr(version, range, loose) {
-  return outside(version, range, '<', loose);
-}
-
-// Determine if version is greater than all the versions possible in the range.
-exports.gtr = gtr;
-function gtr(version, range, loose) {
-  return outside(version, range, '>', loose);
-}
-
-exports.outside = outside;
-function outside(version, range, hilo, loose) {
-  version = new SemVer(version, loose);
-  range = new Range(range, loose);
-
-  var gtfn, ltefn, ltfn, comp, ecomp;
-  switch (hilo) {
-    case '>':
-      gtfn = gt;
-      ltefn = lte;
-      ltfn = lt;
-      comp = '>';
-      ecomp = '>=';
-      break;
-    case '<':
-      gtfn = lt;
-      ltefn = gte;
-      ltfn = gt;
-      comp = '<';
-      ecomp = '<=';
-      break;
-    default:
-      throw new TypeError('Must provide a hilo val of "<" or ">"');
-  }
-
-  // If it satisifes the range it is not outside
-  if (satisfies(version, range, loose)) {
-    return false;
-  }
-
-  // From now on, variable terms are as if we're in "gtr" mode.
-  // but note that everything is flipped for the "ltr" function.
-
-  for (var i = 0; i < range.set.length; ++i) {
-    var comparators = range.set[i];
-
-    var high = null;
-    var low = null;
-
-    comparators.forEach(function(comparator) {
-      if (comparator.semver === ANY) {
-        comparator = new Comparator('>=0.0.0')
-      }
-      high = high || comparator;
-      low = low || comparator;
-      if (gtfn(comparator.semver, high.semver, loose)) {
-        high = comparator;
-      } else if (ltfn(comparator.semver, low.semver, loose)) {
-        low = comparator;
-      }
-    });
-
-    // If the edge version comparator has a operator then our version
-    // isn't outside it
-    if (high.operator === comp || high.operator === ecomp) {
-      return false;
-    }
-
-    // If the lowest version comparator has an operator and our version
-    // is less than it then it isn't higher than the range
-    if ((!low.operator || low.operator === comp) &&
-        ltefn(version, low.semver)) {
-      return false;
-    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
-      return false;
-    }
-  }
-  return true;
-}
-
-exports.prerelease = prerelease;
-function prerelease(version, loose) {
-  var parsed = parse(version, loose);
-  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null;
-}
-
-exports.intersects = intersects;
-function intersects(r1, r2, loose) {
-  r1 = new Range(r1, loose)
-  r2 = new Range(r2, loose)
-  return r1.intersects(r2)
-}
-
-exports.coerce = coerce;
-function coerce(version) {
-  if (version instanceof SemVer)
-    return version;
-
-  if (typeof version !== 'string')
-    return null;
-
-  var match = version.match(re[COERCE]);
-
-  if (match == null)
-    return null;
-
-  return parse((match[1] || '0') + '.' + (match[2] || '0') + '.' + (match[3] || '0')); 
-}
-
-
-/***/ }),
-/* 23 */
-/***/ (function(module, exports) {
-
-module.exports = require("stream");
-
-/***/ }),
-/* 24 */
-/***/ (function(module, exports) {
-
-module.exports = require("url");
-
-/***/ }),
-/* 25 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Subscription; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__util_isArray__ = __webpack_require__(41);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__util_isObject__ = __webpack_require__(444);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__util_isFunction__ = __webpack_require__(154);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_tryCatch__ = __webpack_require__(56);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_errorObject__ = __webpack_require__(48);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__util_UnsubscriptionError__ = __webpack_require__(441);
-/** PURE_IMPORTS_START _util_isArray,_util_isObject,_util_isFunction,_util_tryCatch,_util_errorObject,_util_UnsubscriptionError PURE_IMPORTS_END */
-
-
-
-
-
-
-var Subscription = /*@__PURE__*/ (function () {
-    function Subscription(unsubscribe) {
-        this.closed = false;
-        this._parent = null;
-        this._parents = null;
-        this._subscriptions = null;
-        if (unsubscribe) {
-            this._unsubscribe = unsubscribe;
-        }
-    }
-    Subscription.prototype.unsubscribe = function () {
-        var hasErrors = false;
-        var errors;
-        if (this.closed) {
-            return;
-        }
-        var _a = this, _parent = _a._parent, _parents = _a._parents, _unsubscribe = _a._unsubscribe, _subscriptions = _a._subscriptions;
-        this.closed = true;
-        this._parent = null;
-        this._parents = null;
-        this._subscriptions = null;
-        var index = -1;
-        var len = _parents ? _parents.length : 0;
-        while (_parent) {
-            _parent.remove(this);
-            _parent = ++index < len && _parents[index] || null;
-        }
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__util_isFunction__["a" /* isFunction */])(_unsubscribe)) {
-            var trial = __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_tryCatch__["a" /* tryCatch */])(_unsubscribe).call(this);
-            if (trial === __WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */]) {
-                hasErrors = true;
-                errors = errors || (__WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */].e instanceof __WEBPACK_IMPORTED_MODULE_5__util_UnsubscriptionError__["a" /* UnsubscriptionError */] ?
-                    flattenUnsubscriptionErrors(__WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */].e.errors) : [__WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */].e]);
-            }
-        }
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_0__util_isArray__["a" /* isArray */])(_subscriptions)) {
-            index = -1;
-            len = _subscriptions.length;
-            while (++index < len) {
-                var sub = _subscriptions[index];
-                if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_isObject__["a" /* isObject */])(sub)) {
-                    var trial = __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_tryCatch__["a" /* tryCatch */])(sub.unsubscribe).call(sub);
-                    if (trial === __WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */]) {
-                        hasErrors = true;
-                        errors = errors || [];
-                        var err = __WEBPACK_IMPORTED_MODULE_4__util_errorObject__["a" /* errorObject */].e;
-                        if (err instanceof __WEBPACK_IMPORTED_MODULE_5__util_UnsubscriptionError__["a" /* UnsubscriptionError */]) {
-                            errors = errors.concat(flattenUnsubscriptionErrors(err.errors));
-                        }
-                        else {
-                            errors.push(err);
-                        }
-                    }
-                }
-            }
-        }
-        if (hasErrors) {
-            throw new __WEBPACK_IMPORTED_MODULE_5__util_UnsubscriptionError__["a" /* UnsubscriptionError */](errors);
-        }
-    };
-    Subscription.prototype.add = function (teardown) {
-        if (!teardown || (teardown === Subscription.EMPTY)) {
-            return Subscription.EMPTY;
-        }
-        if (teardown === this) {
-            return this;
-        }
-        var subscription = teardown;
-        switch (typeof teardown) {
-            case 'function':
-                subscription = new Subscription(teardown);
-            case 'object':
-                if (subscription.closed || typeof subscription.unsubscribe !== 'function') {
-                    return subscription;
-                }
-                else if (this.closed) {
-                    subscription.unsubscribe();
-                    return subscription;
-                }
-                else if (typeof subscription._addParent !== 'function') {
-                    var tmp = subscription;
-                    subscription = new Subscription();
-                    subscription._subscriptions = [tmp];
-                }
-                break;
-            default:
-                throw new Error('unrecognized teardown ' + teardown + ' added to Subscription.');
-        }
-        var subscriptions = this._subscriptions || (this._subscriptions = []);
-        subscriptions.push(subscription);
-        subscription._addParent(this);
-        return subscription;
-    };
-    Subscription.prototype.remove = function (subscription) {
-        var subscriptions = this._subscriptions;
-        if (subscriptions) {
-            var subscriptionIndex = subscriptions.indexOf(subscription);
-            if (subscriptionIndex !== -1) {
-                subscriptions.splice(subscriptionIndex, 1);
-            }
-        }
-    };
-    Subscription.prototype._addParent = function (parent) {
-        var _a = this, _parent = _a._parent, _parents = _a._parents;
-        if (!_parent || _parent === parent) {
-            this._parent = parent;
-        }
-        else if (!_parents) {
-            this._parents = [parent];
-        }
-        else if (_parents.indexOf(parent) === -1) {
-            _parents.push(parent);
-        }
-    };
-    Subscription.EMPTY = (function (empty) {
-        empty.closed = true;
-        return empty;
-    }(new Subscription()));
-    return Subscription;
-}());
-
-function flattenUnsubscriptionErrors(errors) {
-    return errors.reduce(function (errs, err) { return errs.concat((err instanceof __WEBPACK_IMPORTED_MODULE_5__util_UnsubscriptionError__["a" /* UnsubscriptionError */]) ? err.errors : err); }, []);
-}
-//# sourceMappingURL=Subscription.js.map
-
-
-/***/ }),
-/* 26 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	bufferSplit: bufferSplit,
-	addRSAMissing: addRSAMissing,
-	calculateDSAPublic: calculateDSAPublic,
-	calculateED25519Public: calculateED25519Public,
-	calculateX25519Public: calculateX25519Public,
-	mpNormalize: mpNormalize,
-	mpDenormalize: mpDenormalize,
-	ecNormalize: ecNormalize,
-	countZeros: countZeros,
-	assertCompatible: assertCompatible,
-	isCompatible: isCompatible,
-	opensslKeyDeriv: opensslKeyDeriv,
-	opensshCipherInfo: opensshCipherInfo,
-	publicFromPrivateECDSA: publicFromPrivateECDSA,
-	zeroPadToLength: zeroPadToLength,
-	writeBitString: writeBitString,
-	readBitString: readBitString
-};
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var PrivateKey = __webpack_require__(33);
-var Key = __webpack_require__(27);
-var crypto = __webpack_require__(11);
-var algs = __webpack_require__(32);
-var asn1 = __webpack_require__(66);
-
-var ec, jsbn;
-var nacl;
-
-var MAX_CLASS_DEPTH = 3;
-
-function isCompatible(obj, klass, needVer) {
-	if (obj === null || typeof (obj) !== 'object')
-		return (false);
-	if (needVer === undefined)
-		needVer = klass.prototype._sshpkApiVersion;
-	if (obj instanceof klass &&
-	    klass.prototype._sshpkApiVersion[0] == needVer[0])
-		return (true);
-	var proto = Object.getPrototypeOf(obj);
-	var depth = 0;
-	while (proto.constructor.name !== klass.name) {
-		proto = Object.getPrototypeOf(proto);
-		if (!proto || ++depth > MAX_CLASS_DEPTH)
-			return (false);
-	}
-	if (proto.constructor.name !== klass.name)
-		return (false);
-	var ver = proto._sshpkApiVersion;
-	if (ver === undefined)
-		ver = klass._oldVersionDetect(obj);
-	if (ver[0] != needVer[0] || ver[1] < needVer[1])
-		return (false);
-	return (true);
-}
-
-function assertCompatible(obj, klass, needVer, name) {
-	if (name === undefined)
-		name = 'object';
-	assert.ok(obj, name + ' must not be null');
-	assert.object(obj, name + ' must be an object');
-	if (needVer === undefined)
-		needVer = klass.prototype._sshpkApiVersion;
-	if (obj instanceof klass &&
-	    klass.prototype._sshpkApiVersion[0] == needVer[0])
-		return;
-	var proto = Object.getPrototypeOf(obj);
-	var depth = 0;
-	while (proto.constructor.name !== klass.name) {
-		proto = Object.getPrototypeOf(proto);
-		assert.ok(proto && ++depth <= MAX_CLASS_DEPTH,
-		    name + ' must be a ' + klass.name + ' instance');
-	}
-	assert.strictEqual(proto.constructor.name, klass.name,
-	    name + ' must be a ' + klass.name + ' instance');
-	var ver = proto._sshpkApiVersion;
-	if (ver === undefined)
-		ver = klass._oldVersionDetect(obj);
-	assert.ok(ver[0] == needVer[0] && ver[1] >= needVer[1],
-	    name + ' must be compatible with ' + klass.name + ' klass ' +
-	    'version ' + needVer[0] + '.' + needVer[1]);
-}
-
-var CIPHER_LEN = {
-	'des-ede3-cbc': { key: 7, iv: 8 },
-	'aes-128-cbc': { key: 16, iv: 16 }
-};
-var PKCS5_SALT_LEN = 8;
-
-function opensslKeyDeriv(cipher, salt, passphrase, count) {
-	assert.buffer(salt, 'salt');
-	assert.buffer(passphrase, 'passphrase');
-	assert.number(count, 'iteration count');
-
-	var clen = CIPHER_LEN[cipher];
-	assert.object(clen, 'supported cipher');
-
-	salt = salt.slice(0, PKCS5_SALT_LEN);
-
-	var D, D_prev, bufs;
-	var material = Buffer.alloc(0);
-	while (material.length < clen.key + clen.iv) {
-		bufs = [];
-		if (D_prev)
-			bufs.push(D_prev);
-		bufs.push(passphrase);
-		bufs.push(salt);
-		D = Buffer.concat(bufs);
-		for (var j = 0; j < count; ++j)
-			D = crypto.createHash('md5').update(D).digest();
-		material = Buffer.concat([material, D]);
-		D_prev = D;
-	}
-
-	return ({
-	    key: material.slice(0, clen.key),
-	    iv: material.slice(clen.key, clen.key + clen.iv)
-	});
-}
-
-/* Count leading zero bits on a buffer */
-function countZeros(buf) {
-	var o = 0, obit = 8;
-	while (o < buf.length) {
-		var mask = (1 << obit);
-		if ((buf[o] & mask) === mask)
-			break;
-		obit--;
-		if (obit < 0) {
-			o++;
-			obit = 8;
-		}
-	}
-	return (o*8 + (8 - obit) - 1);
-}
-
-function bufferSplit(buf, chr) {
-	assert.buffer(buf);
-	assert.string(chr);
-
-	var parts = [];
-	var lastPart = 0;
-	var matches = 0;
-	for (var i = 0; i < buf.length; ++i) {
-		if (buf[i] === chr.charCodeAt(matches))
-			++matches;
-		else if (buf[i] === chr.charCodeAt(0))
-			matches = 1;
-		else
-			matches = 0;
-
-		if (matches >= chr.length) {
-			var newPart = i + 1;
-			parts.push(buf.slice(lastPart, newPart - matches));
-			lastPart = newPart;
-			matches = 0;
-		}
-	}
-	if (lastPart <= buf.length)
-		parts.push(buf.slice(lastPart, buf.length));
-
-	return (parts);
-}
-
-function ecNormalize(buf, addZero) {
-	assert.buffer(buf);
-	if (buf[0] === 0x00 && buf[1] === 0x04) {
-		if (addZero)
-			return (buf);
-		return (buf.slice(1));
-	} else if (buf[0] === 0x04) {
-		if (!addZero)
-			return (buf);
-	} else {
-		while (buf[0] === 0x00)
-			buf = buf.slice(1);
-		if (buf[0] === 0x02 || buf[0] === 0x03)
-			throw (new Error('Compressed elliptic curve points ' +
-			    'are not supported'));
-		if (buf[0] !== 0x04)
-			throw (new Error('Not a valid elliptic curve point'));
-		if (!addZero)
-			return (buf);
-	}
-	var b = Buffer.alloc(buf.length + 1);
-	b[0] = 0x0;
-	buf.copy(b, 1);
-	return (b);
-}
-
-function readBitString(der, tag) {
-	if (tag === undefined)
-		tag = asn1.Ber.BitString;
-	var buf = der.readString(tag, true);
-	assert.strictEqual(buf[0], 0x00, 'bit strings with unused bits are ' +
-	    'not supported (0x' + buf[0].toString(16) + ')');
-	return (buf.slice(1));
-}
-
-function writeBitString(der, buf, tag) {
-	if (tag === undefined)
-		tag = asn1.Ber.BitString;
-	var b = Buffer.alloc(buf.length + 1);
-	b[0] = 0x00;
-	buf.copy(b, 1);
-	der.writeBuffer(b, tag);
-}
-
-function mpNormalize(buf) {
-	assert.buffer(buf);
-	while (buf.length > 1 && buf[0] === 0x00 && (buf[1] & 0x80) === 0x00)
-		buf = buf.slice(1);
-	if ((buf[0] & 0x80) === 0x80) {
-		var b = Buffer.alloc(buf.length + 1);
-		b[0] = 0x00;
-		buf.copy(b, 1);
-		buf = b;
-	}
-	return (buf);
-}
-
-function mpDenormalize(buf) {
-	assert.buffer(buf);
-	while (buf.length > 1 && buf[0] === 0x00)
-		buf = buf.slice(1);
-	return (buf);
-}
-
-function zeroPadToLength(buf, len) {
-	assert.buffer(buf);
-	assert.number(len);
-	while (buf.length > len) {
-		assert.equal(buf[0], 0x00);
-		buf = buf.slice(1);
-	}
-	while (buf.length < len) {
-		var b = Buffer.alloc(buf.length + 1);
-		b[0] = 0x00;
-		buf.copy(b, 1);
-		buf = b;
-	}
-	return (buf);
-}
-
-function bigintToMpBuf(bigint) {
-	var buf = Buffer.from(bigint.toByteArray());
-	buf = mpNormalize(buf);
-	return (buf);
-}
-
-function calculateDSAPublic(g, p, x) {
-	assert.buffer(g);
-	assert.buffer(p);
-	assert.buffer(x);
-	try {
-		var bigInt = __webpack_require__(81).BigInteger;
-	} catch (e) {
-		throw (new Error('To load a PKCS#8 format DSA private key, ' +
-		    'the node jsbn library is required.'));
-	}
-	g = new bigInt(g);
-	p = new bigInt(p);
-	x = new bigInt(x);
-	var y = g.modPow(x, p);
-	var ybuf = bigintToMpBuf(y);
-	return (ybuf);
-}
-
-function calculateED25519Public(k) {
-	assert.buffer(k);
-
-	if (nacl === undefined)
-		nacl = __webpack_require__(76);
-
-	var kp = nacl.sign.keyPair.fromSeed(new Uint8Array(k));
-	return (Buffer.from(kp.publicKey));
-}
-
-function calculateX25519Public(k) {
-	assert.buffer(k);
-
-	if (nacl === undefined)
-		nacl = __webpack_require__(76);
-
-	var kp = nacl.box.keyPair.fromSeed(new Uint8Array(k));
-	return (Buffer.from(kp.publicKey));
-}
-
-function addRSAMissing(key) {
-	assert.object(key);
-	assertCompatible(key, PrivateKey, [1, 1]);
-	try {
-		var bigInt = __webpack_require__(81).BigInteger;
-	} catch (e) {
-		throw (new Error('To write a PEM private key from ' +
-		    'this source, the node jsbn lib is required.'));
-	}
-
-	var d = new bigInt(key.part.d.data);
-	var buf;
-
-	if (!key.part.dmodp) {
-		var p = new bigInt(key.part.p.data);
-		var dmodp = d.mod(p.subtract(1));
-
-		buf = bigintToMpBuf(dmodp);
-		key.part.dmodp = {name: 'dmodp', data: buf};
-		key.parts.push(key.part.dmodp);
-	}
-	if (!key.part.dmodq) {
-		var q = new bigInt(key.part.q.data);
-		var dmodq = d.mod(q.subtract(1));
-
-		buf = bigintToMpBuf(dmodq);
-		key.part.dmodq = {name: 'dmodq', data: buf};
-		key.parts.push(key.part.dmodq);
-	}
-}
-
-function publicFromPrivateECDSA(curveName, priv) {
-	assert.string(curveName, 'curveName');
-	assert.buffer(priv);
-	if (ec === undefined)
-		ec = __webpack_require__(139);
-	if (jsbn === undefined)
-		jsbn = __webpack_require__(81).BigInteger;
-	var params = algs.curves[curveName];
-	var p = new jsbn(params.p);
-	var a = new jsbn(params.a);
-	var b = new jsbn(params.b);
-	var curve = new ec.ECCurveFp(p, a, b);
-	var G = curve.decodePointHex(params.G.toString('hex'));
-
-	var d = new jsbn(mpNormalize(priv));
-	var pub = G.multiply(d);
-	pub = Buffer.from(curve.encodePointHex(pub), 'hex');
-
-	var parts = [];
-	parts.push({name: 'curve', data: Buffer.from(curveName)});
-	parts.push({name: 'Q', data: pub});
-
-	var key = new Key({type: 'ecdsa', curve: curve, parts: parts});
-	return (key);
-}
-
-function opensshCipherInfo(cipher) {
-	var inf = {};
-	switch (cipher) {
-	case '3des-cbc':
-		inf.keySize = 24;
-		inf.blockSize = 8;
-		inf.opensslName = 'des-ede3-cbc';
-		break;
-	case 'blowfish-cbc':
-		inf.keySize = 16;
-		inf.blockSize = 8;
-		inf.opensslName = 'bf-cbc';
-		break;
-	case 'aes128-cbc':
-	case 'aes128-ctr':
-	case 'aes128-gcm@openssh.com':
-		inf.keySize = 16;
-		inf.blockSize = 16;
-		inf.opensslName = 'aes-128-' + cipher.slice(7, 10);
-		break;
-	case 'aes192-cbc':
-	case 'aes192-ctr':
-	case 'aes192-gcm@openssh.com':
-		inf.keySize = 24;
-		inf.blockSize = 16;
-		inf.opensslName = 'aes-192-' + cipher.slice(7, 10);
-		break;
-	case 'aes256-cbc':
-	case 'aes256-ctr':
-	case 'aes256-gcm@openssh.com':
-		inf.keySize = 32;
-		inf.blockSize = 16;
-		inf.opensslName = 'aes-256-' + cipher.slice(7, 10);
-		break;
-	default:
-		throw (new Error(
-		    'Unsupported openssl cipher "' + cipher + '"'));
-	}
-	return (inf);
-}
-
-
-/***/ }),
-/* 27 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = Key;
-
-var assert = __webpack_require__(16);
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var Fingerprint = __webpack_require__(156);
-var Signature = __webpack_require__(75);
-var DiffieHellman = __webpack_require__(325).DiffieHellman;
-var errs = __webpack_require__(74);
-var utils = __webpack_require__(26);
-var PrivateKey = __webpack_require__(33);
-var edCompat;
-
-try {
-	edCompat = __webpack_require__(454);
-} catch (e) {
-	/* Just continue through, and bail out if we try to use it. */
-}
-
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-var KeyParseError = errs.KeyParseError;
-
-var formats = {};
-formats['auto'] = __webpack_require__(455);
-formats['pem'] = __webpack_require__(86);
-formats['pkcs1'] = __webpack_require__(327);
-formats['pkcs8'] = __webpack_require__(157);
-formats['rfc4253'] = __webpack_require__(103);
-formats['ssh'] = __webpack_require__(456);
-formats['ssh-private'] = __webpack_require__(192);
-formats['openssh'] = formats['ssh-private'];
-formats['dnssec'] = __webpack_require__(326);
-
-function Key(opts) {
-	assert.object(opts, 'options');
-	assert.arrayOfObject(opts.parts, 'options.parts');
-	assert.string(opts.type, 'options.type');
-	assert.optionalString(opts.comment, 'options.comment');
-
-	var algInfo = algs.info[opts.type];
-	if (typeof (algInfo) !== 'object')
-		throw (new InvalidAlgorithmError(opts.type));
-
-	var partLookup = {};
-	for (var i = 0; i < opts.parts.length; ++i) {
-		var part = opts.parts[i];
-		partLookup[part.name] = part;
-	}
-
-	this.type = opts.type;
-	this.parts = opts.parts;
-	this.part = partLookup;
-	this.comment = undefined;
-	this.source = opts.source;
-
-	/* for speeding up hashing/fingerprint operations */
-	this._rfc4253Cache = opts._rfc4253Cache;
-	this._hashCache = {};
-
-	var sz;
-	this.curve = undefined;
-	if (this.type === 'ecdsa') {
-		var curve = this.part.curve.data.toString();
-		this.curve = curve;
-		sz = algs.curves[curve].size;
-	} else if (this.type === 'ed25519' || this.type === 'curve25519') {
-		sz = 256;
-		this.curve = 'curve25519';
-	} else {
-		var szPart = this.part[algInfo.sizePart];
-		sz = szPart.data.length;
-		sz = sz * 8 - utils.countZeros(szPart.data);
-	}
-	this.size = sz;
-}
-
-Key.formats = formats;
-
-Key.prototype.toBuffer = function (format, options) {
-	if (format === undefined)
-		format = 'ssh';
-	assert.string(format, 'format');
-	assert.object(formats[format], 'formats[format]');
-	assert.optionalObject(options, 'options');
-
-	if (format === 'rfc4253') {
-		if (this._rfc4253Cache === undefined)
-			this._rfc4253Cache = formats['rfc4253'].write(this);
-		return (this._rfc4253Cache);
-	}
-
-	return (formats[format].write(this, options));
-};
-
-Key.prototype.toString = function (format, options) {
-	return (this.toBuffer(format, options).toString());
-};
-
-Key.prototype.hash = function (algo) {
-	assert.string(algo, 'algorithm');
-	algo = algo.toLowerCase();
-	if (algs.hashAlgs[algo] === undefined)
-		throw (new InvalidAlgorithmError(algo));
-
-	if (this._hashCache[algo])
-		return (this._hashCache[algo]);
-	var hash = crypto.createHash(algo).
-	    update(this.toBuffer('rfc4253')).digest();
-	this._hashCache[algo] = hash;
-	return (hash);
-};
-
-Key.prototype.fingerprint = function (algo) {
-	if (algo === undefined)
-		algo = 'sha256';
-	assert.string(algo, 'algorithm');
-	var opts = {
-		type: 'key',
-		hash: this.hash(algo),
-		algorithm: algo
-	};
-	return (new Fingerprint(opts));
-};
-
-Key.prototype.defaultHashAlgorithm = function () {
-	var hashAlgo = 'sha1';
-	if (this.type === 'rsa')
-		hashAlgo = 'sha256';
-	if (this.type === 'dsa' && this.size > 1024)
-		hashAlgo = 'sha256';
-	if (this.type === 'ed25519')
-		hashAlgo = 'sha512';
-	if (this.type === 'ecdsa') {
-		if (this.size <= 256)
-			hashAlgo = 'sha256';
-		else if (this.size <= 384)
-			hashAlgo = 'sha384';
-		else
-			hashAlgo = 'sha512';
-	}
-	return (hashAlgo);
-};
-
-Key.prototype.createVerify = function (hashAlgo) {
-	if (hashAlgo === undefined)
-		hashAlgo = this.defaultHashAlgorithm();
-	assert.string(hashAlgo, 'hash algorithm');
-
-	/* ED25519 is not supported by OpenSSL, use a javascript impl. */
-	if (this.type === 'ed25519' && edCompat !== undefined)
-		return (new edCompat.Verifier(this, hashAlgo));
-	if (this.type === 'curve25519')
-		throw (new Error('Curve25519 keys are not suitable for ' +
-		    'signing or verification'));
-
-	var v, nm, err;
-	try {
-		nm = hashAlgo.toUpperCase();
-		v = crypto.createVerify(nm);
-	} catch (e) {
-		err = e;
-	}
-	if (v === undefined || (err instanceof Error &&
-	    err.message.match(/Unknown message digest/))) {
-		nm = 'RSA-';
-		nm += hashAlgo.toUpperCase();
-		v = crypto.createVerify(nm);
-	}
-	assert.ok(v, 'failed to create verifier');
-	var oldVerify = v.verify.bind(v);
-	var key = this.toBuffer('pkcs8');
-	var curve = this.curve;
-	var self = this;
-	v.verify = function (signature, fmt) {
-		if (Signature.isSignature(signature, [2, 0])) {
-			if (signature.type !== self.type)
-				return (false);
-			if (signature.hashAlgorithm &&
-			    signature.hashAlgorithm !== hashAlgo)
-				return (false);
-			if (signature.curve && self.type === 'ecdsa' &&
-			    signature.curve !== curve)
-				return (false);
-			return (oldVerify(key, signature.toBuffer('asn1')));
-
-		} else if (typeof (signature) === 'string' ||
-		    Buffer.isBuffer(signature)) {
-			return (oldVerify(key, signature, fmt));
-
-		/*
-		 * Avoid doing this on valid arguments, walking the prototype
-		 * chain can be quite slow.
-		 */
-		} else if (Signature.isSignature(signature, [1, 0])) {
-			throw (new Error('signature was created by too old ' +
-			    'a version of sshpk and cannot be verified'));
-
-		} else {
-			throw (new TypeError('signature must be a string, ' +
-			    'Buffer, or Signature object'));
-		}
-	};
-	return (v);
-};
-
-Key.prototype.createDiffieHellman = function () {
-	if (this.type === 'rsa')
-		throw (new Error('RSA keys do not support Diffie-Hellman'));
-
-	return (new DiffieHellman(this));
-};
-Key.prototype.createDH = Key.prototype.createDiffieHellman;
-
-Key.parse = function (data, format, options) {
-	if (typeof (data) !== 'string')
-		assert.buffer(data, 'data');
-	if (format === undefined)
-		format = 'auto';
-	assert.string(format, 'format');
-	if (typeof (options) === 'string')
-		options = { filename: options };
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	assert.optionalString(options.filename, 'options.filename');
-	if (options.filename === undefined)
-		options.filename = '(unnamed)';
-
-	assert.object(formats[format], 'formats[format]');
-
-	try {
-		var k = formats[format].read(data, options);
-		if (k instanceof PrivateKey)
-			k = k.toPublic();
-		if (!k.comment)
-			k.comment = options.filename;
-		return (k);
-	} catch (e) {
-		if (e.name === 'KeyEncryptedError')
-			throw (e);
-		throw (new KeyParseError(options.filename, format, e));
-	}
-};
-
-Key.isKey = function (obj, ver) {
-	return (utils.isCompatible(obj, Key, ver));
-};
-
-/*
- * API versions for Key:
- * [1,0] -- initial ver, may take Signature for createVerify or may not
- * [1,1] -- added pkcs1, pkcs8 formats
- * [1,2] -- added auto, ssh-private, openssh formats
- * [1,3] -- added defaultHashAlgorithm
- * [1,4] -- added ed support, createDH
- * [1,5] -- first explicitly tagged version
- * [1,6] -- changed ed25519 part names
- */
-Key.prototype._sshpkApiVersion = [1, 6];
-
-Key._oldVersionDetect = function (obj) {
-	assert.func(obj.toBuffer);
-	assert.func(obj.fingerprint);
-	if (obj.createDH)
-		return ([1, 4]);
-	if (obj.defaultHashAlgorithm)
-		return ([1, 3]);
-	if (obj.formats['auto'])
-		return ([1, 2]);
-	if (obj.formats['pkcs1'])
-		return ([1, 1]);
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 28 */
-/***/ (function(module, exports) {
-
-module.exports = require("assert");
-
-/***/ }),
-/* 29 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = nullify;
-function nullify(obj = {}) {
-  if (Array.isArray(obj)) {
-    for (var _iterator = obj, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const item = _ref;
-
-      nullify(item);
-    }
-  } else if (obj !== null && typeof obj === 'object' || typeof obj === 'function') {
-    Object.setPrototypeOf(obj, null);
-
-    // for..in can only be applied to 'object', not 'function'
-    if (typeof obj === 'object') {
-      for (const key in obj) {
-        nullify(obj[key]);
-      }
-    }
-  }
-
-  return obj;
-}
-
-/***/ }),
-/* 30 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const escapeStringRegexp = __webpack_require__(388);
-const ansiStyles = __webpack_require__(506);
-const stdoutColor = __webpack_require__(598).stdout;
-
-const template = __webpack_require__(599);
-
-const isSimpleWindowsTerm = process.platform === 'win32' && !(process.env.TERM || '').toLowerCase().startsWith('xterm');
-
-// `supportsColor.level` → `ansiStyles.color[name]` mapping
-const levelMapping = ['ansi', 'ansi', 'ansi256', 'ansi16m'];
-
-// `color-convert` models to exclude from the Chalk API due to conflicts and such
-const skipModels = new Set(['gray']);
-
-const styles = Object.create(null);
-
-function applyOptions(obj, options) {
-	options = options || {};
-
-	// Detect level if not set manually
-	const scLevel = stdoutColor ? stdoutColor.level : 0;
-	obj.level = options.level === undefined ? scLevel : options.level;
-	obj.enabled = 'enabled' in options ? options.enabled : obj.level > 0;
-}
-
-function Chalk(options) {
-	// We check for this.template here since calling `chalk.constructor()`
-	// by itself will have a `this` of a previously constructed chalk object
-	if (!this || !(this instanceof Chalk) || this.template) {
-		const chalk = {};
-		applyOptions(chalk, options);
-
-		chalk.template = function () {
-			const args = [].slice.call(arguments);
-			return chalkTag.apply(null, [chalk.template].concat(args));
-		};
-
-		Object.setPrototypeOf(chalk, Chalk.prototype);
-		Object.setPrototypeOf(chalk.template, chalk);
-
-		chalk.template.constructor = Chalk;
-
-		return chalk.template;
-	}
-
-	applyOptions(this, options);
-}
-
-// Use bright blue on Windows as the normal blue color is illegible
-if (isSimpleWindowsTerm) {
-	ansiStyles.blue.open = '\u001B[94m';
-}
-
-for (const key of Object.keys(ansiStyles)) {
-	ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
-
-	styles[key] = {
-		get() {
-			const codes = ansiStyles[key];
-			return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, key);
-		}
-	};
-}
-
-styles.visible = {
-	get() {
-		return build.call(this, this._styles || [], true, 'visible');
-	}
-};
-
-ansiStyles.color.closeRe = new RegExp(escapeStringRegexp(ansiStyles.color.close), 'g');
-for (const model of Object.keys(ansiStyles.color.ansi)) {
-	if (skipModels.has(model)) {
-		continue;
-	}
-
-	styles[model] = {
-		get() {
-			const level = this.level;
-			return function () {
-				const open = ansiStyles.color[levelMapping[level]][model].apply(null, arguments);
-				const codes = {
-					open,
-					close: ansiStyles.color.close,
-					closeRe: ansiStyles.color.closeRe
-				};
-				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
-			};
-		}
-	};
-}
-
-ansiStyles.bgColor.closeRe = new RegExp(escapeStringRegexp(ansiStyles.bgColor.close), 'g');
-for (const model of Object.keys(ansiStyles.bgColor.ansi)) {
-	if (skipModels.has(model)) {
-		continue;
-	}
-
-	const bgModel = 'bg' + model[0].toUpperCase() + model.slice(1);
-	styles[bgModel] = {
-		get() {
-			const level = this.level;
-			return function () {
-				const open = ansiStyles.bgColor[levelMapping[level]][model].apply(null, arguments);
-				const codes = {
-					open,
-					close: ansiStyles.bgColor.close,
-					closeRe: ansiStyles.bgColor.closeRe
-				};
-				return build.call(this, this._styles ? this._styles.concat(codes) : [codes], this._empty, model);
-			};
-		}
-	};
-}
-
-const proto = Object.defineProperties(() => {}, styles);
-
-function build(_styles, _empty, key) {
-	const builder = function () {
-		return applyStyle.apply(builder, arguments);
-	};
-
-	builder._styles = _styles;
-	builder._empty = _empty;
-
-	const self = this;
-
-	Object.defineProperty(builder, 'level', {
-		enumerable: true,
-		get() {
-			return self.level;
-		},
-		set(level) {
-			self.level = level;
-		}
-	});
-
-	Object.defineProperty(builder, 'enabled', {
-		enumerable: true,
-		get() {
-			return self.enabled;
-		},
-		set(enabled) {
-			self.enabled = enabled;
-		}
-	});
-
-	// See below for fix regarding invisible grey/dim combination on Windows
-	builder.hasGrey = this.hasGrey || key === 'gray' || key === 'grey';
-
-	// `__proto__` is used because we must return a function, but there is
-	// no way to create a function with a different prototype
-	builder.__proto__ = proto; // eslint-disable-line no-proto
-
-	return builder;
-}
-
-function applyStyle() {
-	// Support varags, but simply cast to string in case there's only one arg
-	const args = arguments;
-	const argsLen = args.length;
-	let str = String(arguments[0]);
-
-	if (argsLen === 0) {
-		return '';
-	}
-
-	if (argsLen > 1) {
-		// Don't slice `arguments`, it prevents V8 optimizations
-		for (let a = 1; a < argsLen; a++) {
-			str += ' ' + args[a];
-		}
-	}
-
-	if (!this.enabled || this.level <= 0 || !str) {
-		return this._empty ? '' : str;
-	}
-
-	// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
-	// see https://github.com/chalk/chalk/issues/58
-	// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
-	const originalDim = ansiStyles.dim.open;
-	if (isSimpleWindowsTerm && this.hasGrey) {
-		ansiStyles.dim.open = '';
-	}
-
-	for (const code of this._styles.slice().reverse()) {
-		// Replace any instances already present with a re-opening code
-		// otherwise only the part of the string until said closing code
-		// will be colored, and the rest will simply be 'plain'.
-		str = code.open + str.replace(code.closeRe, code.open) + code.close;
-
-		// Close the styling before a linebreak and reopen
-		// after next line to fix a bleed issue on macOS
-		// https://github.com/chalk/chalk/pull/92
-		str = str.replace(/\r?\n/g, `${code.close}$&${code.open}`);
-	}
-
-	// Reset the original `dim` if we changed it to work around the Windows dimmed gray issue
-	ansiStyles.dim.open = originalDim;
-
-	return str;
-}
-
-function chalkTag(chalk, strings) {
-	if (!Array.isArray(strings)) {
-		// If chalk() was called by itself or with a string,
-		// return the string itself as a string.
-		return [].slice.call(arguments, 1).join(' ');
-	}
-
-	const args = [].slice.call(arguments, 2);
-	const parts = [strings.raw[0]];
-
-	for (let i = 1; i < strings.length; i++) {
-		parts.push(String(args[i - 1]).replace(/[{}\\]/g, '\\$&'));
-		parts.push(String(strings.raw[i]));
-	}
-
-	return template(chalk, parts.join(''));
-}
-
-Object.defineProperties(Chalk.prototype, styles);
-
-module.exports = Chalk(); // eslint-disable-line new-cap
-module.exports.supportsColor = stdoutColor;
-module.exports.default = module.exports; // For TypeScript
-
-
-/***/ }),
-/* 31 */
-/***/ (function(module, exports) {
-
-var core = module.exports = { version: '2.5.7' };
-if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
-
-
-/***/ }),
-/* 32 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-var Buffer = __webpack_require__(15).Buffer;
-
-var algInfo = {
-	'dsa': {
-		parts: ['p', 'q', 'g', 'y'],
-		sizePart: 'p'
-	},
-	'rsa': {
-		parts: ['e', 'n'],
-		sizePart: 'n'
-	},
-	'ecdsa': {
-		parts: ['curve', 'Q'],
-		sizePart: 'Q'
-	},
-	'ed25519': {
-		parts: ['A'],
-		sizePart: 'A'
-	}
-};
-algInfo['curve25519'] = algInfo['ed25519'];
-
-var algPrivInfo = {
-	'dsa': {
-		parts: ['p', 'q', 'g', 'y', 'x']
-	},
-	'rsa': {
-		parts: ['n', 'e', 'd', 'iqmp', 'p', 'q']
-	},
-	'ecdsa': {
-		parts: ['curve', 'Q', 'd']
-	},
-	'ed25519': {
-		parts: ['A', 'k']
-	}
-};
-algPrivInfo['curve25519'] = algPrivInfo['ed25519'];
-
-var hashAlgs = {
-	'md5': true,
-	'sha1': true,
-	'sha256': true,
-	'sha384': true,
-	'sha512': true
-};
-
-/*
- * Taken from
- * http://csrc.nist.gov/groups/ST/toolkit/documents/dss/NISTReCur.pdf
- */
-var curves = {
-	'nistp256': {
-		size: 256,
-		pkcs8oid: '1.2.840.10045.3.1.7',
-		p: Buffer.from(('00' +
-		    'ffffffff 00000001 00000000 00000000' +
-		    '00000000 ffffffff ffffffff ffffffff').
-		    replace(/ /g, ''), 'hex'),
-		a: Buffer.from(('00' +
-		    'FFFFFFFF 00000001 00000000 00000000' +
-		    '00000000 FFFFFFFF FFFFFFFF FFFFFFFC').
-		    replace(/ /g, ''), 'hex'),
-		b: Buffer.from((
-		    '5ac635d8 aa3a93e7 b3ebbd55 769886bc' +
-		    '651d06b0 cc53b0f6 3bce3c3e 27d2604b').
-		    replace(/ /g, ''), 'hex'),
-		s: Buffer.from(('00' +
-		    'c49d3608 86e70493 6a6678e1 139d26b7' +
-		    '819f7e90').
-		    replace(/ /g, ''), 'hex'),
-		n: Buffer.from(('00' +
-		    'ffffffff 00000000 ffffffff ffffffff' +
-		    'bce6faad a7179e84 f3b9cac2 fc632551').
-		    replace(/ /g, ''), 'hex'),
-		G: Buffer.from(('04' +
-		    '6b17d1f2 e12c4247 f8bce6e5 63a440f2' +
-		    '77037d81 2deb33a0 f4a13945 d898c296' +
-		    '4fe342e2 fe1a7f9b 8ee7eb4a 7c0f9e16' +
-		    '2bce3357 6b315ece cbb64068 37bf51f5').
-		    replace(/ /g, ''), 'hex')
-	},
-	'nistp384': {
-		size: 384,
-		pkcs8oid: '1.3.132.0.34',
-		p: Buffer.from(('00' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff ffffffff fffffffe' +
-		    'ffffffff 00000000 00000000 ffffffff').
-		    replace(/ /g, ''), 'hex'),
-		a: Buffer.from(('00' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE' +
-		    'FFFFFFFF 00000000 00000000 FFFFFFFC').
-		    replace(/ /g, ''), 'hex'),
-		b: Buffer.from((
-		    'b3312fa7 e23ee7e4 988e056b e3f82d19' +
-		    '181d9c6e fe814112 0314088f 5013875a' +
-		    'c656398d 8a2ed19d 2a85c8ed d3ec2aef').
-		    replace(/ /g, ''), 'hex'),
-		s: Buffer.from(('00' +
-		    'a335926a a319a27a 1d00896a 6773a482' +
-		    '7acdac73').
-		    replace(/ /g, ''), 'hex'),
-		n: Buffer.from(('00' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff c7634d81 f4372ddf' +
-		    '581a0db2 48b0a77a ecec196a ccc52973').
-		    replace(/ /g, ''), 'hex'),
-		G: Buffer.from(('04' +
-		    'aa87ca22 be8b0537 8eb1c71e f320ad74' +
-		    '6e1d3b62 8ba79b98 59f741e0 82542a38' +
-		    '5502f25d bf55296c 3a545e38 72760ab7' +
-		    '3617de4a 96262c6f 5d9e98bf 9292dc29' +
-		    'f8f41dbd 289a147c e9da3113 b5f0b8c0' +
-		    '0a60b1ce 1d7e819d 7a431d7c 90ea0e5f').
-		    replace(/ /g, ''), 'hex')
-	},
-	'nistp521': {
-		size: 521,
-		pkcs8oid: '1.3.132.0.35',
-		p: Buffer.from((
-		    '01ffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffff').replace(/ /g, ''), 'hex'),
-		a: Buffer.from(('01FF' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF' +
-		    'FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFC').
-		    replace(/ /g, ''), 'hex'),
-		b: Buffer.from(('51' +
-		    '953eb961 8e1c9a1f 929a21a0 b68540ee' +
-		    'a2da725b 99b315f3 b8b48991 8ef109e1' +
-		    '56193951 ec7e937b 1652c0bd 3bb1bf07' +
-		    '3573df88 3d2c34f1 ef451fd4 6b503f00').
-		    replace(/ /g, ''), 'hex'),
-		s: Buffer.from(('00' +
-		    'd09e8800 291cb853 96cc6717 393284aa' +
-		    'a0da64ba').replace(/ /g, ''), 'hex'),
-		n: Buffer.from(('01ff' +
-		    'ffffffff ffffffff ffffffff ffffffff' +
-		    'ffffffff ffffffff ffffffff fffffffa' +
-		    '51868783 bf2f966b 7fcc0148 f709a5d0' +
-		    '3bb5c9b8 899c47ae bb6fb71e 91386409').
-		    replace(/ /g, ''), 'hex'),
-		G: Buffer.from(('04' +
-		    '00c6 858e06b7 0404e9cd 9e3ecb66 2395b442' +
-		         '9c648139 053fb521 f828af60 6b4d3dba' +
-		         'a14b5e77 efe75928 fe1dc127 a2ffa8de' +
-		         '3348b3c1 856a429b f97e7e31 c2e5bd66' +
-		    '0118 39296a78 9a3bc004 5c8a5fb4 2c7d1bd9' +
-		         '98f54449 579b4468 17afbd17 273e662c' +
-		         '97ee7299 5ef42640 c550b901 3fad0761' +
-		         '353c7086 a272c240 88be9476 9fd16650').
-		    replace(/ /g, ''), 'hex')
-	}
-};
-
-module.exports = {
-	info: algInfo,
-	privInfo: algPrivInfo,
-	hashAlgs: hashAlgs,
-	curves: curves
-};
-
-
-/***/ }),
-/* 33 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = PrivateKey;
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var Fingerprint = __webpack_require__(156);
-var Signature = __webpack_require__(75);
-var errs = __webpack_require__(74);
-var util = __webpack_require__(3);
-var utils = __webpack_require__(26);
-var dhe = __webpack_require__(325);
-var generateECDSA = dhe.generateECDSA;
-var generateED25519 = dhe.generateED25519;
-var edCompat;
-var nacl;
-
-try {
-	edCompat = __webpack_require__(454);
-} catch (e) {
-	/* Just continue through, and bail out if we try to use it. */
-}
-
-var Key = __webpack_require__(27);
-
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-var KeyParseError = errs.KeyParseError;
-var KeyEncryptedError = errs.KeyEncryptedError;
-
-var formats = {};
-formats['auto'] = __webpack_require__(455);
-formats['pem'] = __webpack_require__(86);
-formats['pkcs1'] = __webpack_require__(327);
-formats['pkcs8'] = __webpack_require__(157);
-formats['rfc4253'] = __webpack_require__(103);
-formats['ssh-private'] = __webpack_require__(192);
-formats['openssh'] = formats['ssh-private'];
-formats['ssh'] = formats['ssh-private'];
-formats['dnssec'] = __webpack_require__(326);
-
-function PrivateKey(opts) {
-	assert.object(opts, 'options');
-	Key.call(this, opts);
-
-	this._pubCache = undefined;
-}
-util.inherits(PrivateKey, Key);
-
-PrivateKey.formats = formats;
-
-PrivateKey.prototype.toBuffer = function (format, options) {
-	if (format === undefined)
-		format = 'pkcs1';
-	assert.string(format, 'format');
-	assert.object(formats[format], 'formats[format]');
-	assert.optionalObject(options, 'options');
-
-	return (formats[format].write(this, options));
-};
-
-PrivateKey.prototype.hash = function (algo) {
-	return (this.toPublic().hash(algo));
-};
-
-PrivateKey.prototype.toPublic = function () {
-	if (this._pubCache)
-		return (this._pubCache);
-
-	var algInfo = algs.info[this.type];
-	var pubParts = [];
-	for (var i = 0; i < algInfo.parts.length; ++i) {
-		var p = algInfo.parts[i];
-		pubParts.push(this.part[p]);
-	}
-
-	this._pubCache = new Key({
-		type: this.type,
-		source: this,
-		parts: pubParts
-	});
-	if (this.comment)
-		this._pubCache.comment = this.comment;
-	return (this._pubCache);
-};
-
-PrivateKey.prototype.derive = function (newType) {
-	assert.string(newType, 'type');
-	var priv, pub, pair;
-
-	if (this.type === 'ed25519' && newType === 'curve25519') {
-		if (nacl === undefined)
-			nacl = __webpack_require__(76);
-
-		priv = this.part.k.data;
-		if (priv[0] === 0x00)
-			priv = priv.slice(1);
-
-		pair = nacl.box.keyPair.fromSecretKey(new Uint8Array(priv));
-		pub = Buffer.from(pair.publicKey);
-
-		return (new PrivateKey({
-			type: 'curve25519',
-			parts: [
-				{ name: 'A', data: utils.mpNormalize(pub) },
-				{ name: 'k', data: utils.mpNormalize(priv) }
-			]
-		}));
-	} else if (this.type === 'curve25519' && newType === 'ed25519') {
-		if (nacl === undefined)
-			nacl = __webpack_require__(76);
-
-		priv = this.part.k.data;
-		if (priv[0] === 0x00)
-			priv = priv.slice(1);
-
-		pair = nacl.sign.keyPair.fromSeed(new Uint8Array(priv));
-		pub = Buffer.from(pair.publicKey);
-
-		return (new PrivateKey({
-			type: 'ed25519',
-			parts: [
-				{ name: 'A', data: utils.mpNormalize(pub) },
-				{ name: 'k', data: utils.mpNormalize(priv) }
-			]
-		}));
-	}
-	throw (new Error('Key derivation not supported from ' + this.type +
-	    ' to ' + newType));
-};
-
-PrivateKey.prototype.createVerify = function (hashAlgo) {
-	return (this.toPublic().createVerify(hashAlgo));
-};
-
-PrivateKey.prototype.createSign = function (hashAlgo) {
-	if (hashAlgo === undefined)
-		hashAlgo = this.defaultHashAlgorithm();
-	assert.string(hashAlgo, 'hash algorithm');
-
-	/* ED25519 is not supported by OpenSSL, use a javascript impl. */
-	if (this.type === 'ed25519' && edCompat !== undefined)
-		return (new edCompat.Signer(this, hashAlgo));
-	if (this.type === 'curve25519')
-		throw (new Error('Curve25519 keys are not suitable for ' +
-		    'signing or verification'));
-
-	var v, nm, err;
-	try {
-		nm = hashAlgo.toUpperCase();
-		v = crypto.createSign(nm);
-	} catch (e) {
-		err = e;
-	}
-	if (v === undefined || (err instanceof Error &&
-	    err.message.match(/Unknown message digest/))) {
-		nm = 'RSA-';
-		nm += hashAlgo.toUpperCase();
-		v = crypto.createSign(nm);
-	}
-	assert.ok(v, 'failed to create verifier');
-	var oldSign = v.sign.bind(v);
-	var key = this.toBuffer('pkcs1');
-	var type = this.type;
-	var curve = this.curve;
-	v.sign = function () {
-		var sig = oldSign(key);
-		if (typeof (sig) === 'string')
-			sig = Buffer.from(sig, 'binary');
-		sig = Signature.parse(sig, type, 'asn1');
-		sig.hashAlgorithm = hashAlgo;
-		sig.curve = curve;
-		return (sig);
-	};
-	return (v);
-};
-
-PrivateKey.parse = function (data, format, options) {
-	if (typeof (data) !== 'string')
-		assert.buffer(data, 'data');
-	if (format === undefined)
-		format = 'auto';
-	assert.string(format, 'format');
-	if (typeof (options) === 'string')
-		options = { filename: options };
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	assert.optionalString(options.filename, 'options.filename');
-	if (options.filename === undefined)
-		options.filename = '(unnamed)';
-
-	assert.object(formats[format], 'formats[format]');
-
-	try {
-		var k = formats[format].read(data, options);
-		assert.ok(k instanceof PrivateKey, 'key is not a private key');
-		if (!k.comment)
-			k.comment = options.filename;
-		return (k);
-	} catch (e) {
-		if (e.name === 'KeyEncryptedError')
-			throw (e);
-		throw (new KeyParseError(options.filename, format, e));
-	}
-};
-
-PrivateKey.isPrivateKey = function (obj, ver) {
-	return (utils.isCompatible(obj, PrivateKey, ver));
-};
-
-PrivateKey.generate = function (type, options) {
-	if (options === undefined)
-		options = {};
-	assert.object(options, 'options');
-
-	switch (type) {
-	case 'ecdsa':
-		if (options.curve === undefined)
-			options.curve = 'nistp256';
-		assert.string(options.curve, 'options.curve');
-		return (generateECDSA(options.curve));
-	case 'ed25519':
-		return (generateED25519());
-	default:
-		throw (new Error('Key generation not supported with key ' +
-		    'type "' + type + '"'));
-	}
-};
-
-/*
- * API versions for PrivateKey:
- * [1,0] -- initial ver
- * [1,1] -- added auto, pkcs[18], openssh/ssh-private formats
- * [1,2] -- added defaultHashAlgorithm
- * [1,3] -- added derive, ed, createDH
- * [1,4] -- first tagged version
- * [1,5] -- changed ed25519 part names and format
- */
-PrivateKey.prototype._sshpkApiVersion = [1, 5];
-
-PrivateKey._oldVersionDetect = function (obj) {
-	assert.func(obj.toPublic);
-	assert.func(obj.createSign);
-	if (obj.derive)
-		return ([1, 3]);
-	if (obj.defaultHashAlgorithm)
-		return ([1, 2]);
-	if (obj.formats['auto'])
-		return ([1, 1]);
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 34 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.wrapLifecycle = exports.run = exports.install = exports.Install = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let install = exports.install = (() => {
-  var _ref29 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, lockfile) {
-    yield wrapLifecycle(config, flags, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const install = new Install(flags, config, reporter, lockfile);
-      yield install.init();
-    }));
-  });
-
-  return function install(_x7, _x8, _x9, _x10) {
-    return _ref29.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref31 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let lockfile;
-    let error = 'installCommandRenamed';
-    if (flags.lockfile === false) {
-      lockfile = new (_lockfile || _load_lockfile()).default();
-    } else {
-      lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-    }
-
-    if (args.length) {
-      const exampleArgs = args.slice();
-
-      if (flags.saveDev) {
-        exampleArgs.push('--dev');
-      }
-      if (flags.savePeer) {
-        exampleArgs.push('--peer');
-      }
-      if (flags.saveOptional) {
-        exampleArgs.push('--optional');
-      }
-      if (flags.saveExact) {
-        exampleArgs.push('--exact');
-      }
-      if (flags.saveTilde) {
-        exampleArgs.push('--tilde');
-      }
-      let command = 'add';
-      if (flags.global) {
-        error = 'globalFlagRemoved';
-        command = 'global add';
-      }
-      throw new (_errors || _load_errors()).MessageError(reporter.lang(error, `yarn ${command} ${exampleArgs.join(' ')}`));
-    }
-
-    yield install(config, reporter, flags, lockfile);
-  });
-
-  return function run(_x11, _x12, _x13, _x14) {
-    return _ref31.apply(this, arguments);
-  };
-})();
-
-let wrapLifecycle = exports.wrapLifecycle = (() => {
-  var _ref32 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, flags, factory) {
-    yield config.executeLifecycleScript('preinstall');
-
-    yield factory();
-
-    // npm behaviour, seems kinda funky but yay compatibility
-    yield config.executeLifecycleScript('install');
-    yield config.executeLifecycleScript('postinstall');
-
-    if (!config.production) {
-      if (!config.disablePrepublish) {
-        yield config.executeLifecycleScript('prepublish');
-      }
-      yield config.executeLifecycleScript('prepare');
-    }
-  });
-
-  return function wrapLifecycle(_x15, _x16, _x17) {
-    return _ref32.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _objectPath;
-
-function _load_objectPath() {
-  return _objectPath = _interopRequireDefault(__webpack_require__(304));
-}
-
-var _hooks;
-
-function _load_hooks() {
-  return _hooks = __webpack_require__(374);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireDefault(__webpack_require__(220));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _integrityChecker;
-
-function _load_integrityChecker() {
-  return _integrityChecker = _interopRequireDefault(__webpack_require__(208));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _lockfile2;
-
-function _load_lockfile2() {
-  return _lockfile2 = __webpack_require__(19);
-}
-
-var _packageFetcher;
-
-function _load_packageFetcher() {
-  return _packageFetcher = _interopRequireWildcard(__webpack_require__(210));
-}
-
-var _packageInstallScripts;
-
-function _load_packageInstallScripts() {
-  return _packageInstallScripts = _interopRequireDefault(__webpack_require__(557));
-}
-
-var _packageCompatibility;
-
-function _load_packageCompatibility() {
-  return _packageCompatibility = _interopRequireWildcard(__webpack_require__(209));
-}
-
-var _packageResolver;
-
-function _load_packageResolver() {
-  return _packageResolver = _interopRequireDefault(__webpack_require__(366));
-}
-
-var _packageLinker;
-
-function _load_packageLinker() {
-  return _packageLinker = _interopRequireDefault(__webpack_require__(211));
-}
-
-var _index2;
-
-function _load_index2() {
-  return _index2 = __webpack_require__(57);
-}
-
-var _index3;
-
-function _load_index3() {
-  return _index3 = __webpack_require__(78);
-}
-
-var _autoclean;
-
-function _load_autoclean() {
-  return _autoclean = __webpack_require__(354);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _normalizePattern;
-
-function _load_normalizePattern() {
-  return _normalizePattern = __webpack_require__(37);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _yarnVersion;
-
-function _load_yarnVersion() {
-  return _yarnVersion = __webpack_require__(120);
-}
-
-var _generatePnpMap;
-
-function _load_generatePnpMap() {
-  return _generatePnpMap = __webpack_require__(579);
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-var _resolutionMap;
-
-function _load_resolutionMap() {
-  return _resolutionMap = _interopRequireDefault(__webpack_require__(214));
-}
-
-var _guessName;
-
-function _load_guessName() {
-  return _guessName = _interopRequireDefault(__webpack_require__(169));
-}
-
-var _audit;
-
-function _load_audit() {
-  return _audit = _interopRequireDefault(__webpack_require__(353));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const deepEqual = __webpack_require__(631);
-
-const emoji = __webpack_require__(302);
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const semver = __webpack_require__(22);
-const uuid = __webpack_require__(119);
-const ssri = __webpack_require__(65);
-
-const ONE_DAY = 1000 * 60 * 60 * 24;
-
-/**
- * Try and detect the installation method for Yarn and provide a command to update it with.
- */
-
-function getUpdateCommand(installationMethod) {
-  if (installationMethod === 'tar') {
-    return `curl --compressed -o- -L ${(_constants || _load_constants()).YARN_INSTALLER_SH} | bash`;
-  }
-
-  if (installationMethod === 'homebrew') {
-    return 'brew upgrade yarn';
-  }
-
-  if (installationMethod === 'deb') {
-    return 'sudo apt-get update && sudo apt-get install yarn';
-  }
-
-  if (installationMethod === 'rpm') {
-    return 'sudo yum install yarn';
-  }
-
-  if (installationMethod === 'npm') {
-    return 'npm install --global yarn';
-  }
-
-  if (installationMethod === 'chocolatey') {
-    return 'choco upgrade yarn';
-  }
-
-  if (installationMethod === 'apk') {
-    return 'apk update && apk add -u yarn';
-  }
-
-  if (installationMethod === 'portage') {
-    return 'sudo emerge --sync && sudo emerge -au sys-apps/yarn';
-  }
-
-  return null;
-}
-
-function getUpdateInstaller(installationMethod) {
-  // Windows
-  if (installationMethod === 'msi') {
-    return (_constants || _load_constants()).YARN_INSTALLER_MSI;
-  }
-
-  return null;
-}
-
-function normalizeFlags(config, rawFlags) {
-  const flags = {
-    // install
-    har: !!rawFlags.har,
-    ignorePlatform: !!rawFlags.ignorePlatform,
-    ignoreEngines: !!rawFlags.ignoreEngines,
-    ignoreScripts: !!rawFlags.ignoreScripts,
-    ignoreOptional: !!rawFlags.ignoreOptional,
-    force: !!rawFlags.force,
-    flat: !!rawFlags.flat,
-    lockfile: rawFlags.lockfile !== false,
-    pureLockfile: !!rawFlags.pureLockfile,
-    updateChecksums: !!rawFlags.updateChecksums,
-    skipIntegrityCheck: !!rawFlags.skipIntegrityCheck,
-    frozenLockfile: !!rawFlags.frozenLockfile,
-    linkDuplicates: !!rawFlags.linkDuplicates,
-    checkFiles: !!rawFlags.checkFiles,
-    audit: !!rawFlags.audit,
-
-    // add
-    peer: !!rawFlags.peer,
-    dev: !!rawFlags.dev,
-    optional: !!rawFlags.optional,
-    exact: !!rawFlags.exact,
-    tilde: !!rawFlags.tilde,
-    ignoreWorkspaceRootCheck: !!rawFlags.ignoreWorkspaceRootCheck,
-
-    // outdated, update-interactive
-    includeWorkspaceDeps: !!rawFlags.includeWorkspaceDeps,
-
-    // add, remove, update
-    workspaceRootIsCwd: rawFlags.workspaceRootIsCwd !== false
-  };
-
-  if (config.getOption('ignore-scripts')) {
-    flags.ignoreScripts = true;
-  }
-
-  if (config.getOption('ignore-platform')) {
-    flags.ignorePlatform = true;
-  }
-
-  if (config.getOption('ignore-engines')) {
-    flags.ignoreEngines = true;
-  }
-
-  if (config.getOption('ignore-optional')) {
-    flags.ignoreOptional = true;
-  }
-
-  if (config.getOption('force')) {
-    flags.force = true;
-  }
-
-  return flags;
-}
-
-class Install {
-  constructor(flags, config, reporter, lockfile) {
-    this.rootManifestRegistries = [];
-    this.rootPatternsToOrigin = (0, (_map || _load_map()).default)();
-    this.lockfile = lockfile;
-    this.reporter = reporter;
-    this.config = config;
-    this.flags = normalizeFlags(config, flags);
-    this.resolutions = (0, (_map || _load_map()).default)(); // Legacy resolutions field used for flat install mode
-    this.resolutionMap = new (_resolutionMap || _load_resolutionMap()).default(config); // Selective resolutions for nested dependencies
-    this.resolver = new (_packageResolver || _load_packageResolver()).default(config, lockfile, this.resolutionMap);
-    this.integrityChecker = new (_integrityChecker || _load_integrityChecker()).default(config);
-    this.linker = new (_packageLinker || _load_packageLinker()).default(config, this.resolver);
-    this.scripts = new (_packageInstallScripts || _load_packageInstallScripts()).default(config, this.resolver, this.flags.force);
-  }
-
-  /**
-   * Create a list of dependency requests from the current directories manifests.
-   */
-
-  fetchRequestFromCwd(excludePatterns = [], ignoreUnusedPatterns = false) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const patterns = [];
-      const deps = [];
-      let resolutionDeps = [];
-      const manifest = {};
-
-      const ignorePatterns = [];
-      const usedPatterns = [];
-      let workspaceLayout;
-
-      // some commands should always run in the context of the entire workspace
-      const cwd = _this.flags.includeWorkspaceDeps || _this.flags.workspaceRootIsCwd ? _this.config.lockfileFolder : _this.config.cwd;
-
-      // non-workspaces are always root, otherwise check for workspace root
-      const cwdIsRoot = !_this.config.workspaceRootFolder || _this.config.lockfileFolder === cwd;
-
-      // exclude package names that are in install args
-      const excludeNames = [];
-      for (var _iterator = excludePatterns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const pattern = _ref;
-
-        if ((0, (_index3 || _load_index3()).getExoticResolver)(pattern)) {
-          excludeNames.push((0, (_guessName || _load_guessName()).default)(pattern));
-        } else {
-          // extract the name
-          const parts = (0, (_normalizePattern || _load_normalizePattern()).normalizePattern)(pattern);
-          excludeNames.push(parts.name);
-        }
-      }
-
-      const stripExcluded = function stripExcluded(manifest) {
-        for (var _iterator2 = excludeNames, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-          var _ref2;
-
-          if (_isArray2) {
-            if (_i2 >= _iterator2.length) break;
-            _ref2 = _iterator2[_i2++];
-          } else {
-            _i2 = _iterator2.next();
-            if (_i2.done) break;
-            _ref2 = _i2.value;
-          }
-
-          const exclude = _ref2;
-
-          if (manifest.dependencies && manifest.dependencies[exclude]) {
-            delete manifest.dependencies[exclude];
-          }
-          if (manifest.devDependencies && manifest.devDependencies[exclude]) {
-            delete manifest.devDependencies[exclude];
-          }
-          if (manifest.optionalDependencies && manifest.optionalDependencies[exclude]) {
-            delete manifest.optionalDependencies[exclude];
-          }
-        }
-      };
-
-      for (var _iterator3 = Object.keys((_index2 || _load_index2()).registries), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref3 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref3 = _i3.value;
-        }
-
-        const registry = _ref3;
-
-        const filename = (_index2 || _load_index2()).registries[registry].filename;
-
-        const loc = path.join(cwd, filename);
-        if (!(yield (_fs || _load_fs()).exists(loc))) {
-          continue;
-        }
-
-        _this.rootManifestRegistries.push(registry);
-
-        const projectManifestJson = yield _this.config.readJson(loc);
-        yield (0, (_index || _load_index()).default)(projectManifestJson, cwd, _this.config, cwdIsRoot);
-
-        Object.assign(_this.resolutions, projectManifestJson.resolutions);
-        Object.assign(manifest, projectManifestJson);
-
-        _this.resolutionMap.init(_this.resolutions);
-        for (var _iterator4 = Object.keys(_this.resolutionMap.resolutionsByPackage), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref4;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref4 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref4 = _i4.value;
-          }
-
-          const packageName = _ref4;
-
-          const optional = (_objectPath || _load_objectPath()).default.has(manifest.optionalDependencies, packageName) && _this.flags.ignoreOptional;
-          for (var _iterator8 = _this.resolutionMap.resolutionsByPackage[packageName], _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-            var _ref9;
-
-            if (_isArray8) {
-              if (_i8 >= _iterator8.length) break;
-              _ref9 = _iterator8[_i8++];
-            } else {
-              _i8 = _iterator8.next();
-              if (_i8.done) break;
-              _ref9 = _i8.value;
-            }
-
-            const _ref8 = _ref9;
-            const pattern = _ref8.pattern;
-
-            resolutionDeps = [...resolutionDeps, { registry, pattern, optional, hint: 'resolution' }];
-          }
-        }
-
-        const pushDeps = function pushDeps(depType, manifest, { hint, optional }, isUsed) {
-          if (ignoreUnusedPatterns && !isUsed) {
-            return;
-          }
-          // We only take unused dependencies into consideration to get deterministic hoisting.
-          // Since flat mode doesn't care about hoisting and everything is top level and specified then we can safely
-          // leave these out.
-          if (_this.flags.flat && !isUsed) {
-            return;
-          }
-          const depMap = manifest[depType];
-          for (const name in depMap) {
-            if (excludeNames.indexOf(name) >= 0) {
-              continue;
-            }
-
-            let pattern = name;
-            if (!_this.lockfile.getLocked(pattern)) {
-              // when we use --save we save the dependency to the lockfile with just the name rather than the
-              // version combo
-              pattern += '@' + depMap[name];
-            }
-
-            // normalization made sure packages are mentioned only once
-            if (isUsed) {
-              usedPatterns.push(pattern);
-            } else {
-              ignorePatterns.push(pattern);
-            }
-
-            _this.rootPatternsToOrigin[pattern] = depType;
-            patterns.push(pattern);
-            deps.push({ pattern, registry, hint, optional, workspaceName: manifest.name, workspaceLoc: manifest._loc });
-          }
-        };
-
-        if (cwdIsRoot) {
-          pushDeps('dependencies', projectManifestJson, { hint: null, optional: false }, true);
-          pushDeps('devDependencies', projectManifestJson, { hint: 'dev', optional: false }, !_this.config.production);
-          pushDeps('optionalDependencies', projectManifestJson, { hint: 'optional', optional: true }, true);
-        }
-
-        if (_this.config.workspaceRootFolder) {
-          const workspaceLoc = cwdIsRoot ? loc : path.join(_this.config.lockfileFolder, filename);
-          const workspacesRoot = path.dirname(workspaceLoc);
-
-          let workspaceManifestJson = projectManifestJson;
-          if (!cwdIsRoot) {
-            // the manifest we read before was a child workspace, so get the root
-            workspaceManifestJson = yield _this.config.readJson(workspaceLoc);
-            yield (0, (_index || _load_index()).default)(workspaceManifestJson, workspacesRoot, _this.config, true);
-          }
-
-          const workspaces = yield _this.config.resolveWorkspaces(workspacesRoot, workspaceManifestJson);
-          workspaceLayout = new (_workspaceLayout || _load_workspaceLayout()).default(workspaces, _this.config);
-
-          // add virtual manifest that depends on all workspaces, this way package hoisters and resolvers will work fine
-          const workspaceDependencies = (0, (_extends2 || _load_extends()).default)({}, workspaceManifestJson.dependencies);
-          for (var _iterator5 = Object.keys(workspaces), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-            var _ref5;
-
-            if (_isArray5) {
-              if (_i5 >= _iterator5.length) break;
-              _ref5 = _iterator5[_i5++];
-            } else {
-              _i5 = _iterator5.next();
-              if (_i5.done) break;
-              _ref5 = _i5.value;
-            }
-
-            const workspaceName = _ref5;
-
-            const workspaceManifest = workspaces[workspaceName].manifest;
-            workspaceDependencies[workspaceName] = workspaceManifest.version;
-
-            // include dependencies from all workspaces
-            if (_this.flags.includeWorkspaceDeps) {
-              pushDeps('dependencies', workspaceManifest, { hint: null, optional: false }, true);
-              pushDeps('devDependencies', workspaceManifest, { hint: 'dev', optional: false }, !_this.config.production);
-              pushDeps('optionalDependencies', workspaceManifest, { hint: 'optional', optional: true }, true);
-            }
-          }
-          const virtualDependencyManifest = {
-            _uid: '',
-            name: `workspace-aggregator-${uuid.v4()}`,
-            version: '1.0.0',
-            _registry: 'npm',
-            _loc: workspacesRoot,
-            dependencies: workspaceDependencies,
-            devDependencies: (0, (_extends2 || _load_extends()).default)({}, workspaceManifestJson.devDependencies),
-            optionalDependencies: (0, (_extends2 || _load_extends()).default)({}, workspaceManifestJson.optionalDependencies),
-            private: workspaceManifestJson.private,
-            workspaces: workspaceManifestJson.workspaces
-          };
-          workspaceLayout.virtualManifestName = virtualDependencyManifest.name;
-          const virtualDep = {};
-          virtualDep[virtualDependencyManifest.name] = virtualDependencyManifest.version;
-          workspaces[virtualDependencyManifest.name] = { loc: workspacesRoot, manifest: virtualDependencyManifest };
-
-          // ensure dependencies that should be excluded are stripped from the correct manifest
-          stripExcluded(cwdIsRoot ? virtualDependencyManifest : workspaces[projectManifestJson.name].manifest);
-
-          pushDeps('workspaces', { workspaces: virtualDep }, { hint: 'workspaces', optional: false }, true);
-
-          const implicitWorkspaceDependencies = (0, (_extends2 || _load_extends()).default)({}, workspaceDependencies);
-
-          for (var _iterator6 = (_constants || _load_constants()).OWNED_DEPENDENCY_TYPES, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-            var _ref6;
-
-            if (_isArray6) {
-              if (_i6 >= _iterator6.length) break;
-              _ref6 = _iterator6[_i6++];
-            } else {
-              _i6 = _iterator6.next();
-              if (_i6.done) break;
-              _ref6 = _i6.value;
-            }
-
-            const type = _ref6;
-
-            for (var _iterator7 = Object.keys(projectManifestJson[type] || {}), _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-              var _ref7;
-
-              if (_isArray7) {
-                if (_i7 >= _iterator7.length) break;
-                _ref7 = _iterator7[_i7++];
-              } else {
-                _i7 = _iterator7.next();
-                if (_i7.done) break;
-                _ref7 = _i7.value;
-              }
-
-              const dependencyName = _ref7;
-
-              delete implicitWorkspaceDependencies[dependencyName];
-            }
-          }
-
-          pushDeps('dependencies', { dependencies: implicitWorkspaceDependencies }, { hint: 'workspaces', optional: false }, true);
-        }
-
-        break;
-      }
-
-      // inherit root flat flag
-      if (manifest.flat) {
-        _this.flags.flat = true;
-      }
-
-      return {
-        requests: [...resolutionDeps, ...deps],
-        patterns,
-        manifest,
-        usedPatterns,
-        ignorePatterns,
-        workspaceLayout
-      };
-    })();
-  }
-
-  /**
-   * TODO description
-   */
-
-  prepareRequests(requests) {
-    return requests;
-  }
-
-  preparePatterns(patterns) {
-    return patterns;
-  }
-  preparePatternsForLinking(patterns, cwdManifest, cwdIsRoot) {
-    return patterns;
-  }
-
-  prepareManifests() {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const manifests = yield _this2.config.getRootManifests();
-      return manifests;
-    })();
-  }
-
-  bailout(patterns, workspaceLayout) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // We don't want to skip the audit - it could yield important errors
-      if (_this3.flags.audit) {
-        return false;
-      }
-      // PNP is so fast that the integrity check isn't pertinent
-      if (_this3.config.plugnplayEnabled) {
-        return false;
-      }
-      if (_this3.flags.skipIntegrityCheck || _this3.flags.force) {
-        return false;
-      }
-      const lockfileCache = _this3.lockfile.cache;
-      if (!lockfileCache) {
-        return false;
-      }
-      const lockfileClean = _this3.lockfile.parseResultType === 'success';
-      const match = yield _this3.integrityChecker.check(patterns, lockfileCache, _this3.flags, workspaceLayout);
-      if (_this3.flags.frozenLockfile && (!lockfileClean || match.missingPatterns.length > 0)) {
-        throw new (_errors || _load_errors()).MessageError(_this3.reporter.lang('frozenLockfileError'));
-      }
-
-      const haveLockfile = yield (_fs || _load_fs()).exists(path.join(_this3.config.lockfileFolder, (_constants || _load_constants()).LOCKFILE_FILENAME));
-
-      const lockfileIntegrityPresent = !_this3.lockfile.hasEntriesExistWithoutIntegrity();
-      const integrityBailout = lockfileIntegrityPresent || !_this3.config.autoAddIntegrity;
-
-      if (match.integrityMatches && haveLockfile && lockfileClean && integrityBailout) {
-        _this3.reporter.success(_this3.reporter.lang('upToDate'));
-        return true;
-      }
-
-      if (match.integrityFileMissing && haveLockfile) {
-        // Integrity file missing, force script installations
-        _this3.scripts.setForce(true);
-        return false;
-      }
-
-      if (match.hardRefreshRequired) {
-        // e.g. node version doesn't match, force script installations
-        _this3.scripts.setForce(true);
-        return false;
-      }
-
-      if (!patterns.length && !match.integrityFileMissing) {
-        _this3.reporter.success(_this3.reporter.lang('nothingToInstall'));
-        yield _this3.createEmptyManifestFolders();
-        yield _this3.saveLockfileAndIntegrity(patterns, workspaceLayout);
-        return true;
-      }
-
-      return false;
-    })();
-  }
-
-  /**
-   * Produce empty folders for all used root manifests.
-   */
-
-  createEmptyManifestFolders() {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (_this4.config.modulesFolder) {
-        // already created
-        return;
-      }
-
-      for (var _iterator9 = _this4.rootManifestRegistries, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-        var _ref10;
-
-        if (_isArray9) {
-          if (_i9 >= _iterator9.length) break;
-          _ref10 = _iterator9[_i9++];
-        } else {
-          _i9 = _iterator9.next();
-          if (_i9.done) break;
-          _ref10 = _i9.value;
-        }
-
-        const registryName = _ref10;
-        const folder = _this4.config.registries[registryName].folder;
-
-        yield (_fs || _load_fs()).mkdirp(path.join(_this4.config.lockfileFolder, folder));
-      }
-    })();
-  }
-
-  /**
-   * TODO description
-   */
-
-  markIgnored(patterns) {
-    for (var _iterator10 = patterns, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray10) {
-        if (_i10 >= _iterator10.length) break;
-        _ref11 = _iterator10[_i10++];
-      } else {
-        _i10 = _iterator10.next();
-        if (_i10.done) break;
-        _ref11 = _i10.value;
-      }
-
-      const pattern = _ref11;
-
-      const manifest = this.resolver.getStrictResolvedPattern(pattern);
-      const ref = manifest._reference;
-      invariant(ref, 'expected package reference');
-
-      // just mark the package as ignored. if the package is used by a required package, the hoister
-      // will take care of that.
-      ref.ignore = true;
-    }
-  }
-
-  /**
-   * helper method that gets only recent manifests
-   * used by global.ls command
-   */
-  getFlattenedDeps() {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _ref12 = yield _this5.fetchRequestFromCwd();
-
-      const depRequests = _ref12.requests,
-            rawPatterns = _ref12.patterns;
-
-
-      yield _this5.resolver.init(depRequests, {});
-
-      const manifests = yield (_packageFetcher || _load_packageFetcher()).fetch(_this5.resolver.getManifests(), _this5.config);
-      _this5.resolver.updateManifests(manifests);
-
-      return _this5.flatten(rawPatterns);
-    })();
-  }
-
-  /**
-   * TODO description
-   */
-
-  init() {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this6.checkUpdate();
-
-      // warn if we have a shrinkwrap
-      if (yield (_fs || _load_fs()).exists(path.join(_this6.config.lockfileFolder, (_constants || _load_constants()).NPM_SHRINKWRAP_FILENAME))) {
-        _this6.reporter.warn(_this6.reporter.lang('shrinkwrapWarning'));
-      }
-
-      // warn if we have an npm lockfile
-      if (yield (_fs || _load_fs()).exists(path.join(_this6.config.lockfileFolder, (_constants || _load_constants()).NPM_LOCK_FILENAME))) {
-        _this6.reporter.warn(_this6.reporter.lang('npmLockfileWarning'));
-      }
-
-      if (_this6.config.plugnplayEnabled) {
-        _this6.reporter.info(_this6.reporter.lang('plugnplaySuggestV2L1'));
-        _this6.reporter.info(_this6.reporter.lang('plugnplaySuggestV2L2'));
-      }
-
-      let flattenedTopLevelPatterns = [];
-      const steps = [];
-
-      var _ref13 = yield _this6.fetchRequestFromCwd();
-
-      const depRequests = _ref13.requests,
-            rawPatterns = _ref13.patterns,
-            ignorePatterns = _ref13.ignorePatterns,
-            workspaceLayout = _ref13.workspaceLayout,
-            manifest = _ref13.manifest;
-
-      let topLevelPatterns = [];
-
-      const artifacts = yield _this6.integrityChecker.getArtifacts();
-      if (artifacts) {
-        _this6.linker.setArtifacts(artifacts);
-        _this6.scripts.setArtifacts(artifacts);
-      }
-
-      if ((_packageCompatibility || _load_packageCompatibility()).shouldCheck(manifest, _this6.flags)) {
-        steps.push((() => {
-          var _ref14 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (curr, total) {
-            _this6.reporter.step(curr, total, _this6.reporter.lang('checkingManifest'), emoji.get('mag'));
-            yield _this6.checkCompatibility();
-          });
-
-          return function (_x, _x2) {
-            return _ref14.apply(this, arguments);
-          };
-        })());
-      }
-
-      const audit = new (_audit || _load_audit()).default(_this6.config, _this6.reporter, { groups: (_constants || _load_constants()).OWNED_DEPENDENCY_TYPES });
-      let auditFoundProblems = false;
-
-      steps.push(function (curr, total) {
-        return (0, (_hooks || _load_hooks()).callThroughHook)('resolveStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-          _this6.reporter.step(curr, total, _this6.reporter.lang('resolvingPackages'), emoji.get('mag'));
-          yield _this6.resolver.init(_this6.prepareRequests(depRequests), {
-            isFlat: _this6.flags.flat,
-            isFrozen: _this6.flags.frozenLockfile,
-            workspaceLayout
-          });
-          topLevelPatterns = _this6.preparePatterns(rawPatterns);
-          flattenedTopLevelPatterns = yield _this6.flatten(topLevelPatterns);
-          return { bailout: !_this6.flags.audit && (yield _this6.bailout(topLevelPatterns, workspaceLayout)) };
-        }));
-      });
-
-      if (_this6.flags.audit) {
-        steps.push(function (curr, total) {
-          return (0, (_hooks || _load_hooks()).callThroughHook)('auditStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-            _this6.reporter.step(curr, total, _this6.reporter.lang('auditRunning'), emoji.get('mag'));
-            if (_this6.flags.offline) {
-              _this6.reporter.warn(_this6.reporter.lang('auditOffline'));
-              return { bailout: false };
-            }
-            const preparedManifests = yield _this6.prepareManifests();
-            // $FlowFixMe - Flow considers `m` in the map operation to be "mixed", so does not recognize `m.object`
-            const mergedManifest = Object.assign({}, ...Object.values(preparedManifests).map(function (m) {
-              return m.object;
-            }));
-            const auditVulnerabilityCounts = yield audit.performAudit(mergedManifest, _this6.lockfile, _this6.resolver, _this6.linker, topLevelPatterns);
-            auditFoundProblems = auditVulnerabilityCounts.info || auditVulnerabilityCounts.low || auditVulnerabilityCounts.moderate || auditVulnerabilityCounts.high || auditVulnerabilityCounts.critical;
-            return { bailout: yield _this6.bailout(topLevelPatterns, workspaceLayout) };
-          }));
-        });
-      }
-
-      steps.push(function (curr, total) {
-        return (0, (_hooks || _load_hooks()).callThroughHook)('fetchStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-          _this6.markIgnored(ignorePatterns);
-          _this6.reporter.step(curr, total, _this6.reporter.lang('fetchingPackages'), emoji.get('truck'));
-          const manifests = yield (_packageFetcher || _load_packageFetcher()).fetch(_this6.resolver.getManifests(), _this6.config);
-          _this6.resolver.updateManifests(manifests);
-          yield (_packageCompatibility || _load_packageCompatibility()).check(_this6.resolver.getManifests(), _this6.config, _this6.flags.ignoreEngines);
-        }));
-      });
-
-      steps.push(function (curr, total) {
-        return (0, (_hooks || _load_hooks()).callThroughHook)('linkStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-          // remove integrity hash to make this operation atomic
-          yield _this6.integrityChecker.removeIntegrityFile();
-          _this6.reporter.step(curr, total, _this6.reporter.lang('linkingDependencies'), emoji.get('link'));
-          flattenedTopLevelPatterns = _this6.preparePatternsForLinking(flattenedTopLevelPatterns, manifest, _this6.config.lockfileFolder === _this6.config.cwd);
-          yield _this6.linker.init(flattenedTopLevelPatterns, workspaceLayout, {
-            linkDuplicates: _this6.flags.linkDuplicates,
-            ignoreOptional: _this6.flags.ignoreOptional
-          });
-        }));
-      });
-
-      if (_this6.config.plugnplayEnabled) {
-        steps.push(function (curr, total) {
-          return (0, (_hooks || _load_hooks()).callThroughHook)('pnpStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-            const pnpPath = `${_this6.config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`;
-
-            const code = yield (0, (_generatePnpMap || _load_generatePnpMap()).generatePnpMap)(_this6.config, flattenedTopLevelPatterns, {
-              resolver: _this6.resolver,
-              reporter: _this6.reporter,
-              targetPath: pnpPath,
-              workspaceLayout
-            });
-
-            try {
-              const file = yield (_fs || _load_fs()).readFile(pnpPath);
-              if (file === code) {
-                return;
-              }
-            } catch (error) {}
-
-            yield (_fs || _load_fs()).writeFile(pnpPath, code);
-            yield (_fs || _load_fs()).chmod(pnpPath, 0o755);
-          }));
-        });
-      }
-
-      steps.push(function (curr, total) {
-        return (0, (_hooks || _load_hooks()).callThroughHook)('buildStep', (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-          _this6.reporter.step(curr, total, _this6.flags.force ? _this6.reporter.lang('rebuildingPackages') : _this6.reporter.lang('buildingFreshPackages'), emoji.get('hammer'));
-
-          if (_this6.config.ignoreScripts) {
-            _this6.reporter.warn(_this6.reporter.lang('ignoredScripts'));
-          } else {
-            yield _this6.scripts.init(flattenedTopLevelPatterns);
-          }
-        }));
-      });
-
-      if (_this6.flags.har) {
-        steps.push((() => {
-          var _ref21 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (curr, total) {
-            const formattedDate = new Date().toISOString().replace(/:/g, '-');
-            const filename = `yarn-install_${formattedDate}.har`;
-            _this6.reporter.step(curr, total, _this6.reporter.lang('savingHar', filename), emoji.get('black_circle_for_record'));
-            yield _this6.config.requestManager.saveHar(filename);
-          });
-
-          return function (_x3, _x4) {
-            return _ref21.apply(this, arguments);
-          };
-        })());
-      }
-
-      if (yield _this6.shouldClean()) {
-        steps.push((() => {
-          var _ref22 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (curr, total) {
-            _this6.reporter.step(curr, total, _this6.reporter.lang('cleaningModules'), emoji.get('recycle'));
-            yield (0, (_autoclean || _load_autoclean()).clean)(_this6.config, _this6.reporter);
-          });
-
-          return function (_x5, _x6) {
-            return _ref22.apply(this, arguments);
-          };
-        })());
-      }
-
-      let currentStep = 0;
-      for (var _iterator11 = steps, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-        var _ref23;
-
-        if (_isArray11) {
-          if (_i11 >= _iterator11.length) break;
-          _ref23 = _iterator11[_i11++];
-        } else {
-          _i11 = _iterator11.next();
-          if (_i11.done) break;
-          _ref23 = _i11.value;
-        }
-
-        const step = _ref23;
-
-        const stepResult = yield step(++currentStep, steps.length);
-        if (stepResult && stepResult.bailout) {
-          if (_this6.flags.audit) {
-            audit.summary();
-          }
-          if (auditFoundProblems) {
-            _this6.reporter.warn(_this6.reporter.lang('auditRunAuditForDetails'));
-          }
-          _this6.maybeOutputUpdate();
-          return flattenedTopLevelPatterns;
-        }
-      }
-
-      // fin!
-      if (_this6.flags.audit) {
-        audit.summary();
-      }
-      if (auditFoundProblems) {
-        _this6.reporter.warn(_this6.reporter.lang('auditRunAuditForDetails'));
-      }
-      yield _this6.saveLockfileAndIntegrity(topLevelPatterns, workspaceLayout);
-      yield _this6.persistChanges();
-      _this6.maybeOutputUpdate();
-      _this6.config.requestManager.clearCache();
-      return flattenedTopLevelPatterns;
-    })();
-  }
-
-  checkCompatibility() {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _ref24 = yield _this7.fetchRequestFromCwd();
-
-      const manifest = _ref24.manifest;
-
-      yield (_packageCompatibility || _load_packageCompatibility()).checkOne(manifest, _this7.config, _this7.flags.ignoreEngines);
-    })();
-  }
-
-  persistChanges() {
-    var _this8 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // get all the different registry manifests in this folder
-      const manifests = yield _this8.config.getRootManifests();
-
-      if (yield _this8.applyChanges(manifests)) {
-        yield _this8.config.saveRootManifests(manifests);
-      }
-    })();
-  }
-
-  applyChanges(manifests) {
-    let hasChanged = false;
-
-    if (this.config.plugnplayPersist) {
-      const object = manifests.npm.object;
-
-
-      if (typeof object.installConfig !== 'object') {
-        object.installConfig = {};
-      }
-
-      if (this.config.plugnplayEnabled && object.installConfig.pnp !== true) {
-        object.installConfig.pnp = true;
-        hasChanged = true;
-      } else if (!this.config.plugnplayEnabled && typeof object.installConfig.pnp !== 'undefined') {
-        delete object.installConfig.pnp;
-        hasChanged = true;
-      }
-
-      if (Object.keys(object.installConfig).length === 0) {
-        delete object.installConfig;
-      }
-    }
-
-    return Promise.resolve(hasChanged);
-  }
-
-  /**
-   * Check if we should run the cleaning step.
-   */
-
-  shouldClean() {
-    return (_fs || _load_fs()).exists(path.join(this.config.lockfileFolder, (_constants || _load_constants()).CLEAN_FILENAME));
-  }
-
-  /**
-   * TODO
-   */
-
-  flatten(patterns) {
-    var _this9 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (!_this9.flags.flat) {
-        return patterns;
-      }
-
-      const flattenedPatterns = [];
-
-      for (var _iterator12 = _this9.resolver.getAllDependencyNamesByLevelOrder(patterns), _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-        var _ref25;
-
-        if (_isArray12) {
-          if (_i12 >= _iterator12.length) break;
-          _ref25 = _iterator12[_i12++];
-        } else {
-          _i12 = _iterator12.next();
-          if (_i12.done) break;
-          _ref25 = _i12.value;
-        }
-
-        const name = _ref25;
-
-        const infos = _this9.resolver.getAllInfoForPackageName(name).filter(function (manifest) {
-          const ref = manifest._reference;
-          invariant(ref, 'expected package reference');
-          return !ref.ignore;
-        });
-
-        if (infos.length === 0) {
-          continue;
-        }
-
-        if (infos.length === 1) {
-          // single version of this package
-          // take out a single pattern as multiple patterns may have resolved to this package
-          flattenedPatterns.push(_this9.resolver.patternsByPackage[name][0]);
-          continue;
-        }
-
-        const options = infos.map(function (info) {
-          const ref = info._reference;
-          invariant(ref, 'expected reference');
-          return {
-            // TODO `and is required by {PARENT}`,
-            name: _this9.reporter.lang('manualVersionResolutionOption', ref.patterns.join(', '), info.version),
-
-            value: info.version
-          };
-        });
-        const versions = infos.map(function (info) {
-          return info.version;
-        });
-        let version;
-
-        const resolutionVersion = _this9.resolutions[name];
-        if (resolutionVersion && versions.indexOf(resolutionVersion) >= 0) {
-          // use json `resolution` version
-          version = resolutionVersion;
-        } else {
-          version = yield _this9.reporter.select(_this9.reporter.lang('manualVersionResolution', name), _this9.reporter.lang('answer'), options);
-          _this9.resolutions[name] = version;
-        }
-
-        flattenedPatterns.push(_this9.resolver.collapseAllVersionsOfPackage(name, version));
-      }
-
-      // save resolutions to their appropriate root manifest
-      if (Object.keys(_this9.resolutions).length) {
-        const manifests = yield _this9.config.getRootManifests();
-
-        for (const name in _this9.resolutions) {
-          const version = _this9.resolutions[name];
-
-          const patterns = _this9.resolver.patternsByPackage[name];
-          if (!patterns) {
-            continue;
-          }
-
-          let manifest;
-          for (var _iterator13 = patterns, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : _iterator13[Symbol.iterator]();;) {
-            var _ref26;
-
-            if (_isArray13) {
-              if (_i13 >= _iterator13.length) break;
-              _ref26 = _iterator13[_i13++];
-            } else {
-              _i13 = _iterator13.next();
-              if (_i13.done) break;
-              _ref26 = _i13.value;
-            }
-
-            const pattern = _ref26;
-
-            manifest = _this9.resolver.getResolvedPattern(pattern);
-            if (manifest) {
-              break;
-            }
-          }
-          invariant(manifest, 'expected manifest');
-
-          const ref = manifest._reference;
-          invariant(ref, 'expected reference');
-
-          const object = manifests[ref.registry].object;
-          object.resolutions = object.resolutions || {};
-          object.resolutions[name] = version;
-        }
-
-        yield _this9.config.saveRootManifests(manifests);
-      }
-
-      return flattenedPatterns;
-    })();
-  }
-
-  /**
-   * Remove offline tarballs that are no longer required
-   */
-
-  pruneOfflineMirror(lockfile) {
-    var _this10 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const mirror = _this10.config.getOfflineMirrorPath();
-      if (!mirror) {
-        return;
-      }
-
-      const requiredTarballs = new Set();
-      for (const dependency in lockfile) {
-        const resolved = lockfile[dependency].resolved;
-        if (resolved) {
-          const basename = path.basename(resolved.split('#')[0]);
-          if (dependency[0] === '@' && basename[0] !== '@') {
-            requiredTarballs.add(`${dependency.split('/')[0]}-${basename}`);
-          }
-          requiredTarballs.add(basename);
-        }
-      }
-
-      const mirrorFiles = yield (_fs || _load_fs()).walk(mirror);
-      for (var _iterator14 = mirrorFiles, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : _iterator14[Symbol.iterator]();;) {
-        var _ref27;
-
-        if (_isArray14) {
-          if (_i14 >= _iterator14.length) break;
-          _ref27 = _iterator14[_i14++];
-        } else {
-          _i14 = _iterator14.next();
-          if (_i14.done) break;
-          _ref27 = _i14.value;
-        }
-
-        const file = _ref27;
-
-        const isTarball = path.extname(file.basename) === '.tgz';
-        // if using experimental-pack-script-packages-in-mirror flag, don't unlink prebuilt2 packages
-        const hasprebuilt2Package = file.relative.startsWith('prebuilt2/');
-        if (isTarball && !hasprebuilt2Package && !requiredTarballs.has(file.basename)) {
-          yield (_fs || _load_fs()).unlink(file.absolute);
-        }
-      }
-    })();
-  }
-
-  /**
-   * Save updated integrity and lockfiles.
-   */
-
-  saveLockfileAndIntegrity(patterns, workspaceLayout) {
-    var _this11 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const resolvedPatterns = {};
-      Object.keys(_this11.resolver.patterns).forEach(function (pattern) {
-        if (!workspaceLayout || !workspaceLayout.getManifestByPattern(pattern)) {
-          resolvedPatterns[pattern] = _this11.resolver.patterns[pattern];
-        }
-      });
-
-      // TODO this code is duplicated in a few places, need a common way to filter out workspace patterns from lockfile
-      patterns = patterns.filter(function (p) {
-        return !workspaceLayout || !workspaceLayout.getManifestByPattern(p);
-      });
-
-      const lockfileBasedOnResolver = _this11.lockfile.getLockfile(resolvedPatterns);
-
-      if (_this11.config.pruneOfflineMirror) {
-        yield _this11.pruneOfflineMirror(lockfileBasedOnResolver);
-      }
-
-      // write integrity hash
-      if (!_this11.config.plugnplayEnabled) {
-        yield _this11.integrityChecker.save(patterns, lockfileBasedOnResolver, _this11.flags, workspaceLayout, _this11.scripts.getArtifacts());
-      }
-
-      // --no-lockfile or --pure-lockfile or --frozen-lockfile
-      if (_this11.flags.lockfile === false || _this11.flags.pureLockfile || _this11.flags.frozenLockfile) {
-        return;
-      }
-
-      const lockFileHasAllPatterns = patterns.every(function (p) {
-        return _this11.lockfile.getLocked(p);
-      });
-      const lockfilePatternsMatch = Object.keys(_this11.lockfile.cache || {}).every(function (p) {
-        return lockfileBasedOnResolver[p];
-      });
-      const resolverPatternsAreSameAsInLockfile = Object.keys(lockfileBasedOnResolver).every(function (pattern) {
-        const manifest = _this11.lockfile.getLocked(pattern);
-        return manifest && manifest.resolved === lockfileBasedOnResolver[pattern].resolved && deepEqual(manifest.prebuilt2Variants, lockfileBasedOnResolver[pattern].prebuilt2Variants);
-      });
-      const integrityPatternsAreSameAsInLockfile = Object.keys(lockfileBasedOnResolver).every(function (pattern) {
-        const existingIntegrityInfo = lockfileBasedOnResolver[pattern].integrity;
-        if (!existingIntegrityInfo) {
-          // if this entry does not have an integrity, no need to re-write the lockfile because of it
-          return true;
-        }
-        const manifest = _this11.lockfile.getLocked(pattern);
-        if (manifest && manifest.integrity) {
-          const manifestIntegrity = ssri.stringify(manifest.integrity);
-          return manifestIntegrity === existingIntegrityInfo;
-        }
-        return false;
-      });
-
-      // remove command is followed by install with force, lockfile will be rewritten in any case then
-      if (!_this11.flags.force && _this11.lockfile.parseResultType === 'success' && lockFileHasAllPatterns && lockfilePatternsMatch && resolverPatternsAreSameAsInLockfile && integrityPatternsAreSameAsInLockfile && patterns.length) {
-        return;
-      }
-
-      // build lockfile location
-      const loc = path.join(_this11.config.lockfileFolder, (_constants || _load_constants()).LOCKFILE_FILENAME);
-
-      // write lockfile
-      const lockSource = (0, (_lockfile2 || _load_lockfile2()).stringify)(lockfileBasedOnResolver, false, _this11.config.enableLockfileVersions);
-      yield (_fs || _load_fs()).writeFilePreservingEol(loc, lockSource);
-
-      _this11._logSuccessSaveLockfile();
-    })();
-  }
-
-  _logSuccessSaveLockfile() {
-    this.reporter.success(this.reporter.lang('savedLockfile'));
-  }
-
-  /**
-   * Load the dependency graph of the current install. Only does package resolving and wont write to the cwd.
-   */
-  hydrate(ignoreUnusedPatterns) {
-    var _this12 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const request = yield _this12.fetchRequestFromCwd([], ignoreUnusedPatterns);
-      const depRequests = request.requests,
-            rawPatterns = request.patterns,
-            ignorePatterns = request.ignorePatterns,
-            workspaceLayout = request.workspaceLayout;
-
-
-      yield _this12.resolver.init(depRequests, {
-        isFlat: _this12.flags.flat,
-        isFrozen: _this12.flags.frozenLockfile,
-        workspaceLayout
-      });
-      yield _this12.flatten(rawPatterns);
-      _this12.markIgnored(ignorePatterns);
-
-      // fetch packages, should hit cache most of the time
-      const manifests = yield (_packageFetcher || _load_packageFetcher()).fetch(_this12.resolver.getManifests(), _this12.config);
-      _this12.resolver.updateManifests(manifests);
-      yield (_packageCompatibility || _load_packageCompatibility()).check(_this12.resolver.getManifests(), _this12.config, _this12.flags.ignoreEngines);
-
-      // expand minimal manifests
-      for (var _iterator15 = _this12.resolver.getManifests(), _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : _iterator15[Symbol.iterator]();;) {
-        var _ref28;
-
-        if (_isArray15) {
-          if (_i15 >= _iterator15.length) break;
-          _ref28 = _iterator15[_i15++];
-        } else {
-          _i15 = _iterator15.next();
-          if (_i15.done) break;
-          _ref28 = _i15.value;
-        }
-
-        const manifest = _ref28;
-
-        const ref = manifest._reference;
-        invariant(ref, 'expected reference');
-        const type = ref.remote.type;
-        // link specifier won't ever hit cache
-
-        let loc = '';
-        if (type === 'link') {
-          continue;
-        } else if (type === 'workspace') {
-          if (!ref.remote.reference) {
-            continue;
-          }
-          loc = ref.remote.reference;
-        } else {
-          loc = _this12.config.generateModuleCachePath(ref);
-        }
-        const newPkg = yield _this12.config.readManifest(loc);
-        yield _this12.resolver.updateManifest(ref, newPkg);
-      }
-
-      return request;
-    })();
-  }
-
-  /**
-   * Check for updates every day and output a nag message if there's a newer version.
-   */
-
-  checkUpdate() {
-    if (this.config.nonInteractive) {
-      // don't show upgrade dialog on CI or non-TTY terminals
-      return;
-    }
-
-    // don't check if disabled
-    if (this.config.getOption('disable-self-update-check')) {
-      return;
-    }
-
-    // only check for updates once a day
-    const lastUpdateCheck = Number(this.config.getOption('lastUpdateCheck')) || 0;
-    if (lastUpdateCheck && Date.now() - lastUpdateCheck < ONE_DAY) {
-      return;
-    }
-
-    // don't bug for updates on tagged releases
-    if ((_yarnVersion || _load_yarnVersion()).version.indexOf('-') >= 0) {
-      return;
-    }
-
-    this._checkUpdate().catch(() => {
-      // swallow errors
-    });
-  }
-
-  _checkUpdate() {
-    var _this13 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let latestVersion = yield _this13.config.requestManager.request({
-        url: (_constants || _load_constants()).SELF_UPDATE_VERSION_URL
-      });
-      invariant(typeof latestVersion === 'string', 'expected string');
-      latestVersion = latestVersion.trim();
-      if (!semver.valid(latestVersion)) {
-        return;
-      }
-
-      // ensure we only check for updates periodically
-      _this13.config.registries.yarn.saveHomeConfig({
-        lastUpdateCheck: Date.now()
-      });
-
-      if (semver.gt(latestVersion, (_yarnVersion || _load_yarnVersion()).version)) {
-        const installationMethod = yield (0, (_yarnVersion || _load_yarnVersion()).getInstallationMethod)();
-        _this13.maybeOutputUpdate = function () {
-          _this13.reporter.warn(_this13.reporter.lang('yarnOutdated', latestVersion, (_yarnVersion || _load_yarnVersion()).version));
-
-          const command = getUpdateCommand(installationMethod);
-          if (command) {
-            _this13.reporter.info(_this13.reporter.lang('yarnOutdatedCommand'));
-            _this13.reporter.command(command);
-          } else {
-            const installer = getUpdateInstaller(installationMethod);
-            if (installer) {
-              _this13.reporter.info(_this13.reporter.lang('yarnOutdatedInstaller', installer));
-            }
-          }
-        };
-      }
-    })();
-  }
-
-  /**
-   * Method to override with a possible upgrade message.
-   */
-
-  maybeOutputUpdate() {}
-}
-
-exports.Install = Install;
-function hasWrapper(commander, args) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Yarn install is used to install all dependencies for a project.');
-  commander.usage('install [flags]');
-  commander.option('-A, --audit', 'Run vulnerability audit on installed packages');
-  commander.option('-g, --global', 'DEPRECATED');
-  commander.option('-S, --save', 'DEPRECATED - save package to your `dependencies`');
-  commander.option('-D, --save-dev', 'DEPRECATED - save package to your `devDependencies`');
-  commander.option('-P, --save-peer', 'DEPRECATED - save package to your `peerDependencies`');
-  commander.option('-O, --save-optional', 'DEPRECATED - save package to your `optionalDependencies`');
-  commander.option('-E, --save-exact', 'DEPRECATED');
-  commander.option('-T, --save-tilde', 'DEPRECATED');
-}
-
-/***/ }),
-/* 35 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var isObject = __webpack_require__(52);
-module.exports = function (it) {
-  if (!isObject(it)) throw TypeError(it + ' is not an object!');
-  return it;
-};
-
-
-/***/ }),
-/* 36 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return SubjectSubscriber; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return Subject; });
-/* unused harmony export AnonymousSubject */
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__Subscriber__ = __webpack_require__(7);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__Subscription__ = __webpack_require__(25);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__ = __webpack_require__(189);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__SubjectSubscription__ = __webpack_require__(422);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__internal_symbol_rxSubscriber__ = __webpack_require__(321);
-/** PURE_IMPORTS_START tslib,_Observable,_Subscriber,_Subscription,_util_ObjectUnsubscribedError,_SubjectSubscription,_internal_symbol_rxSubscriber PURE_IMPORTS_END */
-
-
-
-
-
-
-
-var SubjectSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](SubjectSubscriber, _super);
-    function SubjectSubscriber(destination) {
-        var _this = _super.call(this, destination) || this;
-        _this.destination = destination;
-        return _this;
-    }
-    return SubjectSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_2__Subscriber__["a" /* Subscriber */]));
-
-var Subject = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](Subject, _super);
-    function Subject() {
-        var _this = _super.call(this) || this;
-        _this.observers = [];
-        _this.closed = false;
-        _this.isStopped = false;
-        _this.hasError = false;
-        _this.thrownError = null;
-        return _this;
-    }
-    Subject.prototype[__WEBPACK_IMPORTED_MODULE_6__internal_symbol_rxSubscriber__["a" /* rxSubscriber */]] = function () {
-        return new SubjectSubscriber(this);
-    };
-    Subject.prototype.lift = function (operator) {
-        var subject = new AnonymousSubject(this, this);
-        subject.operator = operator;
-        return subject;
-    };
-    Subject.prototype.next = function (value) {
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        if (!this.isStopped) {
-            var observers = this.observers;
-            var len = observers.length;
-            var copy = observers.slice();
-            for (var i = 0; i < len; i++) {
-                copy[i].next(value);
-            }
-        }
-    };
-    Subject.prototype.error = function (err) {
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        this.hasError = true;
-        this.thrownError = err;
-        this.isStopped = true;
-        var observers = this.observers;
-        var len = observers.length;
-        var copy = observers.slice();
-        for (var i = 0; i < len; i++) {
-            copy[i].error(err);
-        }
-        this.observers.length = 0;
-    };
-    Subject.prototype.complete = function () {
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        this.isStopped = true;
-        var observers = this.observers;
-        var len = observers.length;
-        var copy = observers.slice();
-        for (var i = 0; i < len; i++) {
-            copy[i].complete();
-        }
-        this.observers.length = 0;
-    };
-    Subject.prototype.unsubscribe = function () {
-        this.isStopped = true;
-        this.closed = true;
-        this.observers = null;
-    };
-    Subject.prototype._trySubscribe = function (subscriber) {
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        else {
-            return _super.prototype._trySubscribe.call(this, subscriber);
-        }
-    };
-    Subject.prototype._subscribe = function (subscriber) {
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_4__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        else if (this.hasError) {
-            subscriber.error(this.thrownError);
-            return __WEBPACK_IMPORTED_MODULE_3__Subscription__["a" /* Subscription */].EMPTY;
-        }
-        else if (this.isStopped) {
-            subscriber.complete();
-            return __WEBPACK_IMPORTED_MODULE_3__Subscription__["a" /* Subscription */].EMPTY;
-        }
-        else {
-            this.observers.push(subscriber);
-            return new __WEBPACK_IMPORTED_MODULE_5__SubjectSubscription__["a" /* SubjectSubscription */](this, subscriber);
-        }
-    };
-    Subject.prototype.asObservable = function () {
-        var observable = new __WEBPACK_IMPORTED_MODULE_1__Observable__["a" /* Observable */]();
-        observable.source = this;
-        return observable;
-    };
-    Subject.create = function (destination, source) {
-        return new AnonymousSubject(destination, source);
-    };
-    return Subject;
-}(__WEBPACK_IMPORTED_MODULE_1__Observable__["a" /* Observable */]));
-
-var AnonymousSubject = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](AnonymousSubject, _super);
-    function AnonymousSubject(destination, source) {
-        var _this = _super.call(this) || this;
-        _this.destination = destination;
-        _this.source = source;
-        return _this;
-    }
-    AnonymousSubject.prototype.next = function (value) {
-        var destination = this.destination;
-        if (destination && destination.next) {
-            destination.next(value);
-        }
-    };
-    AnonymousSubject.prototype.error = function (err) {
-        var destination = this.destination;
-        if (destination && destination.error) {
-            this.destination.error(err);
-        }
-    };
-    AnonymousSubject.prototype.complete = function () {
-        var destination = this.destination;
-        if (destination && destination.complete) {
-            this.destination.complete();
-        }
-    };
-    AnonymousSubject.prototype._subscribe = function (subscriber) {
-        var source = this.source;
-        if (source) {
-            return this.source.subscribe(subscriber);
-        }
-        else {
-            return __WEBPACK_IMPORTED_MODULE_3__Subscription__["a" /* Subscription */].EMPTY;
-        }
-    };
-    return AnonymousSubject;
-}(Subject));
-
-//# sourceMappingURL=Subject.js.map
-
-
-/***/ }),
-/* 37 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.normalizePattern = normalizePattern;
-
-/**
- * Explode and normalize a pattern into its name and range.
- */
-
-function normalizePattern(pattern) {
-  let hasVersion = false;
-  let range = 'latest';
-  let name = pattern;
-
-  // if we're a scope then remove the @ and add it back later
-  let isScoped = false;
-  if (name[0] === '@') {
-    isScoped = true;
-    name = name.slice(1);
-  }
-
-  // take first part as the name
-  const parts = name.split('@');
-  if (parts.length > 1) {
-    name = parts.shift();
-    range = parts.join('@');
-
-    if (range) {
-      hasVersion = true;
-    } else {
-      range = '*';
-    }
-  }
-
-  // add back @ scope suffix
-  if (isScoped) {
-    name = `@${name}`;
-  }
-
-  return { name, range, hasVersion };
-}
-
-/***/ }),
-/* 38 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* WEBPACK VAR INJECTION */(function(module) {var __WEBPACK_AMD_DEFINE_RESULT__;/**
- * @license
- * Lodash <https://lodash.com/>
- * Copyright JS Foundation and other contributors <https://js.foundation/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-;(function() {
-
-  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
-  var undefined;
-
-  /** Used as the semantic version number. */
-  var VERSION = '4.17.10';
-
-  /** Used as the size to enable large array optimizations. */
-  var LARGE_ARRAY_SIZE = 200;
-
-  /** Error message constants. */
-  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
-      FUNC_ERROR_TEXT = 'Expected a function';
-
-  /** Used to stand-in for `undefined` hash values. */
-  var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-  /** Used as the maximum memoize cache size. */
-  var MAX_MEMOIZE_SIZE = 500;
-
-  /** Used as the internal argument placeholder. */
-  var PLACEHOLDER = '__lodash_placeholder__';
-
-  /** Used to compose bitmasks for cloning. */
-  var CLONE_DEEP_FLAG = 1,
-      CLONE_FLAT_FLAG = 2,
-      CLONE_SYMBOLS_FLAG = 4;
-
-  /** Used to compose bitmasks for value comparisons. */
-  var COMPARE_PARTIAL_FLAG = 1,
-      COMPARE_UNORDERED_FLAG = 2;
-
-  /** Used to compose bitmasks for function metadata. */
-  var WRAP_BIND_FLAG = 1,
-      WRAP_BIND_KEY_FLAG = 2,
-      WRAP_CURRY_BOUND_FLAG = 4,
-      WRAP_CURRY_FLAG = 8,
-      WRAP_CURRY_RIGHT_FLAG = 16,
-      WRAP_PARTIAL_FLAG = 32,
-      WRAP_PARTIAL_RIGHT_FLAG = 64,
-      WRAP_ARY_FLAG = 128,
-      WRAP_REARG_FLAG = 256,
-      WRAP_FLIP_FLAG = 512;
-
-  /** Used as default options for `_.truncate`. */
-  var DEFAULT_TRUNC_LENGTH = 30,
-      DEFAULT_TRUNC_OMISSION = '...';
-
-  /** Used to detect hot functions by number of calls within a span of milliseconds. */
-  var HOT_COUNT = 800,
-      HOT_SPAN = 16;
-
-  /** Used to indicate the type of lazy iteratees. */
-  var LAZY_FILTER_FLAG = 1,
-      LAZY_MAP_FLAG = 2,
-      LAZY_WHILE_FLAG = 3;
-
-  /** Used as references for various `Number` constants. */
-  var INFINITY = 1 / 0,
-      MAX_SAFE_INTEGER = 9007199254740991,
-      MAX_INTEGER = 1.7976931348623157e+308,
-      NAN = 0 / 0;
-
-  /** Used as references for the maximum length and index of an array. */
-  var MAX_ARRAY_LENGTH = 4294967295,
-      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
-      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
-
-  /** Used to associate wrap methods with their bit flags. */
-  var wrapFlags = [
-    ['ary', WRAP_ARY_FLAG],
-    ['bind', WRAP_BIND_FLAG],
-    ['bindKey', WRAP_BIND_KEY_FLAG],
-    ['curry', WRAP_CURRY_FLAG],
-    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
-    ['flip', WRAP_FLIP_FLAG],
-    ['partial', WRAP_PARTIAL_FLAG],
-    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
-    ['rearg', WRAP_REARG_FLAG]
-  ];
-
-  /** `Object#toString` result references. */
-  var argsTag = '[object Arguments]',
-      arrayTag = '[object Array]',
-      asyncTag = '[object AsyncFunction]',
-      boolTag = '[object Boolean]',
-      dateTag = '[object Date]',
-      domExcTag = '[object DOMException]',
-      errorTag = '[object Error]',
-      funcTag = '[object Function]',
-      genTag = '[object GeneratorFunction]',
-      mapTag = '[object Map]',
-      numberTag = '[object Number]',
-      nullTag = '[object Null]',
-      objectTag = '[object Object]',
-      promiseTag = '[object Promise]',
-      proxyTag = '[object Proxy]',
-      regexpTag = '[object RegExp]',
-      setTag = '[object Set]',
-      stringTag = '[object String]',
-      symbolTag = '[object Symbol]',
-      undefinedTag = '[object Undefined]',
-      weakMapTag = '[object WeakMap]',
-      weakSetTag = '[object WeakSet]';
-
-  var arrayBufferTag = '[object ArrayBuffer]',
-      dataViewTag = '[object DataView]',
-      float32Tag = '[object Float32Array]',
-      float64Tag = '[object Float64Array]',
-      int8Tag = '[object Int8Array]',
-      int16Tag = '[object Int16Array]',
-      int32Tag = '[object Int32Array]',
-      uint8Tag = '[object Uint8Array]',
-      uint8ClampedTag = '[object Uint8ClampedArray]',
-      uint16Tag = '[object Uint16Array]',
-      uint32Tag = '[object Uint32Array]';
-
-  /** Used to match empty string literals in compiled template source. */
-  var reEmptyStringLeading = /\b__p \+= '';/g,
-      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
-      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
-
-  /** Used to match HTML entities and HTML characters. */
-  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
-      reUnescapedHtml = /[&<>"']/g,
-      reHasEscapedHtml = RegExp(reEscapedHtml.source),
-      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
-
-  /** Used to match template delimiters. */
-  var reEscape = /<%-([\s\S]+?)%>/g,
-      reEvaluate = /<%([\s\S]+?)%>/g,
-      reInterpolate = /<%=([\s\S]+?)%>/g;
-
-  /** Used to match property names within property paths. */
-  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
-      reIsPlainProp = /^\w*$/,
-      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
-
-  /**
-   * Used to match `RegExp`
-   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
-   */
-  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
-      reHasRegExpChar = RegExp(reRegExpChar.source);
-
-  /** Used to match leading and trailing whitespace. */
-  var reTrim = /^\s+|\s+$/g,
-      reTrimStart = /^\s+/,
-      reTrimEnd = /\s+$/;
-
-  /** Used to match wrap detail comments. */
-  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
-      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
-      reSplitDetails = /,? & /;
-
-  /** Used to match words composed of alphanumeric characters. */
-  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
-
-  /** Used to match backslashes in property paths. */
-  var reEscapeChar = /\\(\\)?/g;
-
-  /**
-   * Used to match
-   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
-   */
-  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
-
-  /** Used to match `RegExp` flags from their coerced string values. */
-  var reFlags = /\w*$/;
-
-  /** Used to detect bad signed hexadecimal string values. */
-  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
-
-  /** Used to detect binary string values. */
-  var reIsBinary = /^0b[01]+$/i;
-
-  /** Used to detect host constructors (Safari). */
-  var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-  /** Used to detect octal string values. */
-  var reIsOctal = /^0o[0-7]+$/i;
-
-  /** Used to detect unsigned integer values. */
-  var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-  /** Used to match Latin Unicode letters (excluding mathematical operators). */
-  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
-
-  /** Used to ensure capturing order of template delimiters. */
-  var reNoMatch = /($^)/;
-
-  /** Used to match unescaped characters in compiled string literals. */
-  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
-
-  /** Used to compose unicode character classes. */
-  var rsAstralRange = '\\ud800-\\udfff',
-      rsComboMarksRange = '\\u0300-\\u036f',
-      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
-      rsComboSymbolsRange = '\\u20d0-\\u20ff',
-      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
-      rsDingbatRange = '\\u2700-\\u27bf',
-      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
-      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
-      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
-      rsPunctuationRange = '\\u2000-\\u206f',
-      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
-      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
-      rsVarRange = '\\ufe0e\\ufe0f',
-      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
-
-  /** Used to compose unicode capture groups. */
-  var rsApos = "['\u2019]",
-      rsAstral = '[' + rsAstralRange + ']',
-      rsBreak = '[' + rsBreakRange + ']',
-      rsCombo = '[' + rsComboRange + ']',
-      rsDigits = '\\d+',
-      rsDingbat = '[' + rsDingbatRange + ']',
-      rsLower = '[' + rsLowerRange + ']',
-      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
-      rsFitz = '\\ud83c[\\udffb-\\udfff]',
-      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
-      rsNonAstral = '[^' + rsAstralRange + ']',
-      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
-      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
-      rsUpper = '[' + rsUpperRange + ']',
-      rsZWJ = '\\u200d';
-
-  /** Used to compose unicode regexes. */
-  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
-      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
-      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
-      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
-      reOptMod = rsModifier + '?',
-      rsOptVar = '[' + rsVarRange + ']?',
-      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
-      rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
-      rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
-      rsSeq = rsOptVar + reOptMod + rsOptJoin,
-      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
-      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
-
-  /** Used to match apostrophes. */
-  var reApos = RegExp(rsApos, 'g');
-
-  /**
-   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
-   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
-   */
-  var reComboMark = RegExp(rsCombo, 'g');
-
-  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
-  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
-
-  /** Used to match complex or compound words. */
-  var reUnicodeWord = RegExp([
-    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
-    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
-    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
-    rsUpper + '+' + rsOptContrUpper,
-    rsOrdUpper,
-    rsOrdLower,
-    rsDigits,
-    rsEmoji
-  ].join('|'), 'g');
-
-  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');
-
-  /** Used to detect strings that need a more robust regexp to match words. */
-  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
-
-  /** Used to assign default `context` object properties. */
-  var contextProps = [
-    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
-    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
-    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
-    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
-    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
-  ];
-
-  /** Used to make template sourceURLs easier to identify. */
-  var templateCounter = -1;
-
-  /** Used to identify `toStringTag` values of typed arrays. */
-  var typedArrayTags = {};
-  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
-  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
-  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
-  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
-  typedArrayTags[uint32Tag] = true;
-  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
-  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
-  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
-  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
-  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
-  typedArrayTags[setTag] = typedArrayTags[stringTag] =
-  typedArrayTags[weakMapTag] = false;
-
-  /** Used to identify `toStringTag` values supported by `_.clone`. */
-  var cloneableTags = {};
-  cloneableTags[argsTag] = cloneableTags[arrayTag] =
-  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
-  cloneableTags[boolTag] = cloneableTags[dateTag] =
-  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
-  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
-  cloneableTags[int32Tag] = cloneableTags[mapTag] =
-  cloneableTags[numberTag] = cloneableTags[objectTag] =
-  cloneableTags[regexpTag] = cloneableTags[setTag] =
-  cloneableTags[stringTag] = cloneableTags[symbolTag] =
-  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
-  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
-  cloneableTags[errorTag] = cloneableTags[funcTag] =
-  cloneableTags[weakMapTag] = false;
-
-  /** Used to map Latin Unicode letters to basic Latin letters. */
-  var deburredLetters = {
-    // Latin-1 Supplement block.
-    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
-    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
-    '\xc7': 'C',  '\xe7': 'c',
-    '\xd0': 'D',  '\xf0': 'd',
-    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
-    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
-    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
-    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
-    '\xd1': 'N',  '\xf1': 'n',
-    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
-    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
-    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
-    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
-    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
-    '\xc6': 'Ae', '\xe6': 'ae',
-    '\xde': 'Th', '\xfe': 'th',
-    '\xdf': 'ss',
-    // Latin Extended-A block.
-    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
-    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
-    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
-    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
-    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
-    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
-    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
-    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
-    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
-    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
-    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
-    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
-    '\u0134': 'J',  '\u0135': 'j',
-    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
-    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
-    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
-    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
-    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
-    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
-    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
-    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
-    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
-    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
-    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
-    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
-    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
-    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
-    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
-    '\u0174': 'W',  '\u0175': 'w',
-    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
-    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
-    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
-    '\u0132': 'IJ', '\u0133': 'ij',
-    '\u0152': 'Oe', '\u0153': 'oe',
-    '\u0149': "'n", '\u017f': 's'
-  };
-
-  /** Used to map characters to HTML entities. */
-  var htmlEscapes = {
-    '&': '&amp;',
-    '<': '&lt;',
-    '>': '&gt;',
-    '"': '&quot;',
-    "'": '&#39;'
-  };
-
-  /** Used to map HTML entities to characters. */
-  var htmlUnescapes = {
-    '&amp;': '&',
-    '&lt;': '<',
-    '&gt;': '>',
-    '&quot;': '"',
-    '&#39;': "'"
-  };
-
-  /** Used to escape characters for inclusion in compiled string literals. */
-  var stringEscapes = {
-    '\\': '\\',
-    "'": "'",
-    '\n': 'n',
-    '\r': 'r',
-    '\u2028': 'u2028',
-    '\u2029': 'u2029'
-  };
-
-  /** Built-in method references without a dependency on `root`. */
-  var freeParseFloat = parseFloat,
-      freeParseInt = parseInt;
-
-  /** Detect free variable `global` from Node.js. */
-  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
-
-  /** Detect free variable `self`. */
-  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-  /** Used as a reference to the global object. */
-  var root = freeGlobal || freeSelf || Function('return this')();
-
-  /** Detect free variable `exports`. */
-  var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
-
-  /** Detect free variable `module`. */
-  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
-
-  /** Detect the popular CommonJS extension `module.exports`. */
-  var moduleExports = freeModule && freeModule.exports === freeExports;
-
-  /** Detect free variable `process` from Node.js. */
-  var freeProcess = moduleExports && freeGlobal.process;
-
-  /** Used to access faster Node.js helpers. */
-  var nodeUtil = (function() {
-    try {
-      // Use `util.types` for Node.js 10+.
-      var types = freeModule && freeModule.require && freeModule.require('util').types;
-
-      if (types) {
-        return types;
-      }
-
-      // Legacy `process.binding('util')` for Node.js < 10.
-      return freeProcess && freeProcess.binding && freeProcess.binding('util');
-    } catch (e) {}
-  }());
-
-  /* Node.js helper references. */
-  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
-      nodeIsDate = nodeUtil && nodeUtil.isDate,
-      nodeIsMap = nodeUtil && nodeUtil.isMap,
-      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
-      nodeIsSet = nodeUtil && nodeUtil.isSet,
-      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * A faster alternative to `Function#apply`, this function invokes `func`
-   * with the `this` binding of `thisArg` and the arguments of `args`.
-   *
-   * @private
-   * @param {Function} func The function to invoke.
-   * @param {*} thisArg The `this` binding of `func`.
-   * @param {Array} args The arguments to invoke `func` with.
-   * @returns {*} Returns the result of `func`.
-   */
-  function apply(func, thisArg, args) {
-    switch (args.length) {
-      case 0: return func.call(thisArg);
-      case 1: return func.call(thisArg, args[0]);
-      case 2: return func.call(thisArg, args[0], args[1]);
-      case 3: return func.call(thisArg, args[0], args[1], args[2]);
-    }
-    return func.apply(thisArg, args);
-  }
-
-  /**
-   * A specialized version of `baseAggregator` for arrays.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} setter The function to set `accumulator` values.
-   * @param {Function} iteratee The iteratee to transform keys.
-   * @param {Object} accumulator The initial aggregated object.
-   * @returns {Function} Returns `accumulator`.
-   */
-  function arrayAggregator(array, setter, iteratee, accumulator) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    while (++index < length) {
-      var value = array[index];
-      setter(accumulator, value, iteratee(value), array);
-    }
-    return accumulator;
-  }
-
-  /**
-   * A specialized version of `_.forEach` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Array} Returns `array`.
-   */
-  function arrayEach(array, iteratee) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    while (++index < length) {
-      if (iteratee(array[index], index, array) === false) {
-        break;
-      }
-    }
-    return array;
-  }
-
-  /**
-   * A specialized version of `_.forEachRight` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Array} Returns `array`.
-   */
-  function arrayEachRight(array, iteratee) {
-    var length = array == null ? 0 : array.length;
-
-    while (length--) {
-      if (iteratee(array[length], length, array) === false) {
-        break;
-      }
-    }
-    return array;
-  }
-
-  /**
-   * A specialized version of `_.every` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if all elements pass the predicate check,
-   *  else `false`.
-   */
-  function arrayEvery(array, predicate) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    while (++index < length) {
-      if (!predicate(array[index], index, array)) {
-        return false;
-      }
-    }
-    return true;
-  }
-
-  /**
-   * A specialized version of `_.filter` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {Array} Returns the new filtered array.
-   */
-  function arrayFilter(array, predicate) {
-    var index = -1,
-        length = array == null ? 0 : array.length,
-        resIndex = 0,
-        result = [];
-
-    while (++index < length) {
-      var value = array[index];
-      if (predicate(value, index, array)) {
-        result[resIndex++] = value;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * A specialized version of `_.includes` for arrays without support for
-   * specifying an index to search from.
-   *
-   * @private
-   * @param {Array} [array] The array to inspect.
-   * @param {*} target The value to search for.
-   * @returns {boolean} Returns `true` if `target` is found, else `false`.
-   */
-  function arrayIncludes(array, value) {
-    var length = array == null ? 0 : array.length;
-    return !!length && baseIndexOf(array, value, 0) > -1;
-  }
-
-  /**
-   * This function is like `arrayIncludes` except that it accepts a comparator.
-   *
-   * @private
-   * @param {Array} [array] The array to inspect.
-   * @param {*} target The value to search for.
-   * @param {Function} comparator The comparator invoked per element.
-   * @returns {boolean} Returns `true` if `target` is found, else `false`.
-   */
-  function arrayIncludesWith(array, value, comparator) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    while (++index < length) {
-      if (comparator(value, array[index])) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  /**
-   * A specialized version of `_.map` for arrays without support for iteratee
-   * shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Array} Returns the new mapped array.
-   */
-  function arrayMap(array, iteratee) {
-    var index = -1,
-        length = array == null ? 0 : array.length,
-        result = Array(length);
-
-    while (++index < length) {
-      result[index] = iteratee(array[index], index, array);
-    }
-    return result;
-  }
-
-  /**
-   * Appends the elements of `values` to `array`.
-   *
-   * @private
-   * @param {Array} array The array to modify.
-   * @param {Array} values The values to append.
-   * @returns {Array} Returns `array`.
-   */
-  function arrayPush(array, values) {
-    var index = -1,
-        length = values.length,
-        offset = array.length;
-
-    while (++index < length) {
-      array[offset + index] = values[index];
-    }
-    return array;
-  }
-
-  /**
-   * A specialized version of `_.reduce` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @param {*} [accumulator] The initial value.
-   * @param {boolean} [initAccum] Specify using the first element of `array` as
-   *  the initial value.
-   * @returns {*} Returns the accumulated value.
-   */
-  function arrayReduce(array, iteratee, accumulator, initAccum) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    if (initAccum && length) {
-      accumulator = array[++index];
-    }
-    while (++index < length) {
-      accumulator = iteratee(accumulator, array[index], index, array);
-    }
-    return accumulator;
-  }
-
-  /**
-   * A specialized version of `_.reduceRight` for arrays without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @param {*} [accumulator] The initial value.
-   * @param {boolean} [initAccum] Specify using the last element of `array` as
-   *  the initial value.
-   * @returns {*} Returns the accumulated value.
-   */
-  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
-    var length = array == null ? 0 : array.length;
-    if (initAccum && length) {
-      accumulator = array[--length];
-    }
-    while (length--) {
-      accumulator = iteratee(accumulator, array[length], length, array);
-    }
-    return accumulator;
-  }
-
-  /**
-   * A specialized version of `_.some` for arrays without support for iteratee
-   * shorthands.
-   *
-   * @private
-   * @param {Array} [array] The array to iterate over.
-   * @param {Function} predicate The function invoked per iteration.
-   * @returns {boolean} Returns `true` if any element passes the predicate check,
-   *  else `false`.
-   */
-  function arraySome(array, predicate) {
-    var index = -1,
-        length = array == null ? 0 : array.length;
-
-    while (++index < length) {
-      if (predicate(array[index], index, array)) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  /**
-   * Gets the size of an ASCII `string`.
-   *
-   * @private
-   * @param {string} string The string inspect.
-   * @returns {number} Returns the string size.
-   */
-  var asciiSize = baseProperty('length');
-
-  /**
-   * Converts an ASCII `string` to an array.
-   *
-   * @private
-   * @param {string} string The string to convert.
-   * @returns {Array} Returns the converted array.
-   */
-  function asciiToArray(string) {
-    return string.split('');
-  }
-
-  /**
-   * Splits an ASCII `string` into an array of its words.
-   *
-   * @private
-   * @param {string} The string to inspect.
-   * @returns {Array} Returns the words of `string`.
-   */
-  function asciiWords(string) {
-    return string.match(reAsciiWord) || [];
-  }
-
-  /**
-   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
-   * without support for iteratee shorthands, which iterates over `collection`
-   * using `eachFunc`.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to inspect.
-   * @param {Function} predicate The function invoked per iteration.
-   * @param {Function} eachFunc The function to iterate over `collection`.
-   * @returns {*} Returns the found element or its key, else `undefined`.
-   */
-  function baseFindKey(collection, predicate, eachFunc) {
-    var result;
-    eachFunc(collection, function(value, key, collection) {
-      if (predicate(value, key, collection)) {
-        result = key;
-        return false;
-      }
-    });
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.findIndex` and `_.findLastIndex` without
-   * support for iteratee shorthands.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {Function} predicate The function invoked per iteration.
-   * @param {number} fromIndex The index to search from.
-   * @param {boolean} [fromRight] Specify iterating from right to left.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function baseFindIndex(array, predicate, fromIndex, fromRight) {
-    var length = array.length,
-        index = fromIndex + (fromRight ? 1 : -1);
-
-    while ((fromRight ? index-- : ++index < length)) {
-      if (predicate(array[index], index, array)) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {*} value The value to search for.
-   * @param {number} fromIndex The index to search from.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function baseIndexOf(array, value, fromIndex) {
-    return value === value
-      ? strictIndexOf(array, value, fromIndex)
-      : baseFindIndex(array, baseIsNaN, fromIndex);
-  }
-
-  /**
-   * This function is like `baseIndexOf` except that it accepts a comparator.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {*} value The value to search for.
-   * @param {number} fromIndex The index to search from.
-   * @param {Function} comparator The comparator invoked per element.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function baseIndexOfWith(array, value, fromIndex, comparator) {
-    var index = fromIndex - 1,
-        length = array.length;
-
-    while (++index < length) {
-      if (comparator(array[index], value)) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * The base implementation of `_.isNaN` without support for number objects.
-   *
-   * @private
-   * @param {*} value The value to check.
-   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
-   */
-  function baseIsNaN(value) {
-    return value !== value;
-  }
-
-  /**
-   * The base implementation of `_.mean` and `_.meanBy` without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} array The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {number} Returns the mean.
-   */
-  function baseMean(array, iteratee) {
-    var length = array == null ? 0 : array.length;
-    return length ? (baseSum(array, iteratee) / length) : NAN;
-  }
-
-  /**
-   * The base implementation of `_.property` without support for deep paths.
-   *
-   * @private
-   * @param {string} key The key of the property to get.
-   * @returns {Function} Returns the new accessor function.
-   */
-  function baseProperty(key) {
-    return function(object) {
-      return object == null ? undefined : object[key];
-    };
-  }
-
-  /**
-   * The base implementation of `_.propertyOf` without support for deep paths.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @returns {Function} Returns the new accessor function.
-   */
-  function basePropertyOf(object) {
-    return function(key) {
-      return object == null ? undefined : object[key];
-    };
-  }
-
-  /**
-   * The base implementation of `_.reduce` and `_.reduceRight`, without support
-   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
-   *
-   * @private
-   * @param {Array|Object} collection The collection to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @param {*} accumulator The initial value.
-   * @param {boolean} initAccum Specify using the first or last element of
-   *  `collection` as the initial value.
-   * @param {Function} eachFunc The function to iterate over `collection`.
-   * @returns {*} Returns the accumulated value.
-   */
-  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
-    eachFunc(collection, function(value, index, collection) {
-      accumulator = initAccum
-        ? (initAccum = false, value)
-        : iteratee(accumulator, value, index, collection);
-    });
-    return accumulator;
-  }
-
-  /**
-   * The base implementation of `_.sortBy` which uses `comparer` to define the
-   * sort order of `array` and replaces criteria objects with their corresponding
-   * values.
-   *
-   * @private
-   * @param {Array} array The array to sort.
-   * @param {Function} comparer The function to define sort order.
-   * @returns {Array} Returns `array`.
-   */
-  function baseSortBy(array, comparer) {
-    var length = array.length;
-
-    array.sort(comparer);
-    while (length--) {
-      array[length] = array[length].value;
-    }
-    return array;
-  }
-
-  /**
-   * The base implementation of `_.sum` and `_.sumBy` without support for
-   * iteratee shorthands.
-   *
-   * @private
-   * @param {Array} array The array to iterate over.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {number} Returns the sum.
-   */
-  function baseSum(array, iteratee) {
-    var result,
-        index = -1,
-        length = array.length;
-
-    while (++index < length) {
-      var current = iteratee(array[index]);
-      if (current !== undefined) {
-        result = result === undefined ? current : (result + current);
-      }
-    }
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.times` without support for iteratee shorthands
-   * or max array length checks.
-   *
-   * @private
-   * @param {number} n The number of times to invoke `iteratee`.
-   * @param {Function} iteratee The function invoked per iteration.
-   * @returns {Array} Returns the array of results.
-   */
-  function baseTimes(n, iteratee) {
-    var index = -1,
-        result = Array(n);
-
-    while (++index < n) {
-      result[index] = iteratee(index);
-    }
-    return result;
-  }
-
-  /**
-   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
-   * of key-value pairs for `object` corresponding to the property names of `props`.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @param {Array} props The property names to get values for.
-   * @returns {Object} Returns the key-value pairs.
-   */
-  function baseToPairs(object, props) {
-    return arrayMap(props, function(key) {
-      return [key, object[key]];
-    });
-  }
-
-  /**
-   * The base implementation of `_.unary` without support for storing metadata.
-   *
-   * @private
-   * @param {Function} func The function to cap arguments for.
-   * @returns {Function} Returns the new capped function.
-   */
-  function baseUnary(func) {
-    return function(value) {
-      return func(value);
-    };
-  }
-
-  /**
-   * The base implementation of `_.values` and `_.valuesIn` which creates an
-   * array of `object` property values corresponding to the property names
-   * of `props`.
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @param {Array} props The property names to get values for.
-   * @returns {Object} Returns the array of property values.
-   */
-  function baseValues(object, props) {
-    return arrayMap(props, function(key) {
-      return object[key];
-    });
-  }
-
-  /**
-   * Checks if a `cache` value for `key` exists.
-   *
-   * @private
-   * @param {Object} cache The cache to query.
-   * @param {string} key The key of the entry to check.
-   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-   */
-  function cacheHas(cache, key) {
-    return cache.has(key);
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
-   * that is not found in the character symbols.
-   *
-   * @private
-   * @param {Array} strSymbols The string symbols to inspect.
-   * @param {Array} chrSymbols The character symbols to find.
-   * @returns {number} Returns the index of the first unmatched string symbol.
-   */
-  function charsStartIndex(strSymbols, chrSymbols) {
-    var index = -1,
-        length = strSymbols.length;
-
-    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
-    return index;
-  }
-
-  /**
-   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
-   * that is not found in the character symbols.
-   *
-   * @private
-   * @param {Array} strSymbols The string symbols to inspect.
-   * @param {Array} chrSymbols The character symbols to find.
-   * @returns {number} Returns the index of the last unmatched string symbol.
-   */
-  function charsEndIndex(strSymbols, chrSymbols) {
-    var index = strSymbols.length;
-
-    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
-    return index;
-  }
-
-  /**
-   * Gets the number of `placeholder` occurrences in `array`.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {*} placeholder The placeholder to search for.
-   * @returns {number} Returns the placeholder count.
-   */
-  function countHolders(array, placeholder) {
-    var length = array.length,
-        result = 0;
-
-    while (length--) {
-      if (array[length] === placeholder) {
-        ++result;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
-   * letters to basic Latin letters.
-   *
-   * @private
-   * @param {string} letter The matched letter to deburr.
-   * @returns {string} Returns the deburred letter.
-   */
-  var deburrLetter = basePropertyOf(deburredLetters);
-
-  /**
-   * Used by `_.escape` to convert characters to HTML entities.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @returns {string} Returns the escaped character.
-   */
-  var escapeHtmlChar = basePropertyOf(htmlEscapes);
-
-  /**
-   * Used by `_.template` to escape characters for inclusion in compiled string literals.
-   *
-   * @private
-   * @param {string} chr The matched character to escape.
-   * @returns {string} Returns the escaped character.
-   */
-  function escapeStringChar(chr) {
-    return '\\' + stringEscapes[chr];
-  }
-
-  /**
-   * Gets the value at `key` of `object`.
-   *
-   * @private
-   * @param {Object} [object] The object to query.
-   * @param {string} key The key of the property to get.
-   * @returns {*} Returns the property value.
-   */
-  function getValue(object, key) {
-    return object == null ? undefined : object[key];
-  }
-
-  /**
-   * Checks if `string` contains Unicode symbols.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
-   */
-  function hasUnicode(string) {
-    return reHasUnicode.test(string);
-  }
-
-  /**
-   * Checks if `string` contains a word composed of Unicode symbols.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @returns {boolean} Returns `true` if a word is found, else `false`.
-   */
-  function hasUnicodeWord(string) {
-    return reHasUnicodeWord.test(string);
-  }
-
-  /**
-   * Converts `iterator` to an array.
-   *
-   * @private
-   * @param {Object} iterator The iterator to convert.
-   * @returns {Array} Returns the converted array.
-   */
-  function iteratorToArray(iterator) {
-    var data,
-        result = [];
-
-    while (!(data = iterator.next()).done) {
-      result.push(data.value);
-    }
-    return result;
-  }
-
-  /**
-   * Converts `map` to its key-value pairs.
-   *
-   * @private
-   * @param {Object} map The map to convert.
-   * @returns {Array} Returns the key-value pairs.
-   */
-  function mapToArray(map) {
-    var index = -1,
-        result = Array(map.size);
-
-    map.forEach(function(value, key) {
-      result[++index] = [key, value];
-    });
-    return result;
-  }
-
-  /**
-   * Creates a unary function that invokes `func` with its argument transformed.
-   *
-   * @private
-   * @param {Function} func The function to wrap.
-   * @param {Function} transform The argument transform.
-   * @returns {Function} Returns the new function.
-   */
-  function overArg(func, transform) {
-    return function(arg) {
-      return func(transform(arg));
-    };
-  }
-
-  /**
-   * Replaces all `placeholder` elements in `array` with an internal placeholder
-   * and returns an array of their indexes.
-   *
-   * @private
-   * @param {Array} array The array to modify.
-   * @param {*} placeholder The placeholder to replace.
-   * @returns {Array} Returns the new array of placeholder indexes.
-   */
-  function replaceHolders(array, placeholder) {
-    var index = -1,
-        length = array.length,
-        resIndex = 0,
-        result = [];
-
-    while (++index < length) {
-      var value = array[index];
-      if (value === placeholder || value === PLACEHOLDER) {
-        array[index] = PLACEHOLDER;
-        result[resIndex++] = index;
-      }
-    }
-    return result;
-  }
-
-  /**
-   * Gets the value at `key`, unless `key` is "__proto__".
-   *
-   * @private
-   * @param {Object} object The object to query.
-   * @param {string} key The key of the property to get.
-   * @returns {*} Returns the property value.
-   */
-  function safeGet(object, key) {
-    return key == '__proto__'
-      ? undefined
-      : object[key];
-  }
-
-  /**
-   * Converts `set` to an array of its values.
-   *
-   * @private
-   * @param {Object} set The set to convert.
-   * @returns {Array} Returns the values.
-   */
-  function setToArray(set) {
-    var index = -1,
-        result = Array(set.size);
-
-    set.forEach(function(value) {
-      result[++index] = value;
-    });
-    return result;
-  }
-
-  /**
-   * Converts `set` to its value-value pairs.
-   *
-   * @private
-   * @param {Object} set The set to convert.
-   * @returns {Array} Returns the value-value pairs.
-   */
-  function setToPairs(set) {
-    var index = -1,
-        result = Array(set.size);
-
-    set.forEach(function(value) {
-      result[++index] = [value, value];
-    });
-    return result;
-  }
-
-  /**
-   * A specialized version of `_.indexOf` which performs strict equality
-   * comparisons of values, i.e. `===`.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {*} value The value to search for.
-   * @param {number} fromIndex The index to search from.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function strictIndexOf(array, value, fromIndex) {
-    var index = fromIndex - 1,
-        length = array.length;
-
-    while (++index < length) {
-      if (array[index] === value) {
-        return index;
-      }
-    }
-    return -1;
-  }
-
-  /**
-   * A specialized version of `_.lastIndexOf` which performs strict equality
-   * comparisons of values, i.e. `===`.
-   *
-   * @private
-   * @param {Array} array The array to inspect.
-   * @param {*} value The value to search for.
-   * @param {number} fromIndex The index to search from.
-   * @returns {number} Returns the index of the matched value, else `-1`.
-   */
-  function strictLastIndexOf(array, value, fromIndex) {
-    var index = fromIndex + 1;
-    while (index--) {
-      if (array[index] === value) {
-        return index;
-      }
-    }
-    return index;
-  }
-
-  /**
-   * Gets the number of symbols in `string`.
-   *
-   * @private
-   * @param {string} string The string to inspect.
-   * @returns {number} Returns the string size.
-   */
-  function stringSize(string) {
-    return hasUnicode(string)
-      ? unicodeSize(string)
-      : asciiSize(string);
-  }
-
-  /**
-   * Converts `string` to an array.
-   *
-   * @private
-   * @param {string} string The string to convert.
-   * @returns {Array} Returns the converted array.
-   */
-  function stringToArray(string) {
-    return hasUnicode(string)
-      ? unicodeToArray(string)
-      : asciiToArray(string);
-  }
-
-  /**
-   * Used by `_.unescape` to convert HTML entities to characters.
-   *
-   * @private
-   * @param {string} chr The matched character to unescape.
-   * @returns {string} Returns the unescaped character.
-   */
-  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);
-
-  /**
-   * Gets the size of a Unicode `string`.
-   *
-   * @private
-   * @param {string} string The string inspect.
-   * @returns {number} Returns the string size.
-   */
-  function unicodeSize(string) {
-    var result = reUnicode.lastIndex = 0;
-    while (reUnicode.test(string)) {
-      ++result;
-    }
-    return result;
-  }
-
-  /**
-   * Converts a Unicode `string` to an array.
-   *
-   * @private
-   * @param {string} string The string to convert.
-   * @returns {Array} Returns the converted array.
-   */
-  function unicodeToArray(string) {
-    return string.match(reUnicode) || [];
-  }
-
-  /**
-   * Splits a Unicode `string` into an array of its words.
-   *
-   * @private
-   * @param {string} The string to inspect.
-   * @returns {Array} Returns the words of `string`.
-   */
-  function unicodeWords(string) {
-    return string.match(reUnicodeWord) || [];
-  }
-
-  /*--------------------------------------------------------------------------*/
-
-  /**
-   * Create a new pristine `lodash` function using the `context` object.
-   *
-   * @static
-   * @memberOf _
-   * @since 1.1.0
-   * @category Util
-   * @param {Object} [context=root] The context object.
-   * @returns {Function} Returns a new `lodash` function.
-   * @example
-   *
-   * _.mixin({ 'foo': _.constant('foo') });
-   *
-   * var lodash = _.runInContext();
-   * lodash.mixin({ 'bar': lodash.constant('bar') });
-   *
-   * _.isFunction(_.foo);
-   * // => true
-   * _.isFunction(_.bar);
-   * // => false
-   *
-   * lodash.isFunction(lodash.foo);
-   * // => false
-   * lodash.isFunction(lodash.bar);
-   * // => true
-   *
-   * // Create a suped-up `defer` in Node.js.
-   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
-   */
-  var runInContext = (function runInContext(context) {
-    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));
-
-    /** Built-in constructor references. */
-    var Array = context.Array,
-        Date = context.Date,
-        Error = context.Error,
-        Function = context.Function,
-        Math = context.Math,
-        Object = context.Object,
-        RegExp = context.RegExp,
-        String = context.String,
-        TypeError = context.TypeError;
-
-    /** Used for built-in method references. */
-    var arrayProto = Array.prototype,
-        funcProto = Function.prototype,
-        objectProto = Object.prototype;
-
-    /** Used to detect overreaching core-js shims. */
-    var coreJsData = context['__core-js_shared__'];
-
-    /** Used to resolve the decompiled source of functions. */
-    var funcToString = funcProto.toString;
-
-    /** Used to check objects for own properties. */
-    var hasOwnProperty = objectProto.hasOwnProperty;
-
-    /** Used to generate unique IDs. */
-    var idCounter = 0;
-
-    /** Used to detect methods masquerading as native. */
-    var maskSrcKey = (function() {
-      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
-      return uid ? ('Symbol(src)_1.' + uid) : '';
-    }());
-
-    /**
-     * Used to resolve the
-     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
-     * of values.
-     */
-    var nativeObjectToString = objectProto.toString;
-
-    /** Used to infer the `Object` constructor. */
-    var objectCtorString = funcToString.call(Object);
-
-    /** Used to restore the original `_` reference in `_.noConflict`. */
-    var oldDash = root._;
-
-    /** Used to detect if a method is native. */
-    var reIsNative = RegExp('^' +
-      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
-      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-    );
-
-    /** Built-in value references. */
-    var Buffer = moduleExports ? context.Buffer : undefined,
-        Symbol = context.Symbol,
-        Uint8Array = context.Uint8Array,
-        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
-        getPrototype = overArg(Object.getPrototypeOf, Object),
-        objectCreate = Object.create,
-        propertyIsEnumerable = objectProto.propertyIsEnumerable,
-        splice = arrayProto.splice,
-        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
-        symIterator = Symbol ? Symbol.iterator : undefined,
-        symToStringTag = Symbol ? Symbol.toStringTag : undefined;
-
-    var defineProperty = (function() {
-      try {
-        var func = getNative(Object, 'defineProperty');
-        func({}, '', {});
-        return func;
-      } catch (e) {}
-    }());
-
-    /** Mocked built-ins. */
-    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
-        ctxNow = Date && Date.now !== root.Date.now && Date.now,
-        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;
-
-    /* Built-in method references for those with the same name as other `lodash` methods. */
-    var nativeCeil = Math.ceil,
-        nativeFloor = Math.floor,
-        nativeGetSymbols = Object.getOwnPropertySymbols,
-        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
-        nativeIsFinite = context.isFinite,
-        nativeJoin = arrayProto.join,
-        nativeKeys = overArg(Object.keys, Object),
-        nativeMax = Math.max,
-        nativeMin = Math.min,
-        nativeNow = Date.now,
-        nativeParseInt = context.parseInt,
-        nativeRandom = Math.random,
-        nativeReverse = arrayProto.reverse;
-
-    /* Built-in method references that are verified to be native. */
-    var DataView = getNative(context, 'DataView'),
-        Map = getNative(context, 'Map'),
-        Promise = getNative(context, 'Promise'),
-        Set = getNative(context, 'Set'),
-        WeakMap = getNative(context, 'WeakMap'),
-        nativeCreate = getNative(Object, 'create');
-
-    /** Used to store function metadata. */
-    var metaMap = WeakMap && new WeakMap;
-
-    /** Used to lookup unminified function names. */
-    var realNames = {};
-
-    /** Used to detect maps, sets, and weakmaps. */
-    var dataViewCtorString = toSource(DataView),
-        mapCtorString = toSource(Map),
-        promiseCtorString = toSource(Promise),
-        setCtorString = toSource(Set),
-        weakMapCtorString = toSource(WeakMap);
-
-    /** Used to convert symbols to primitives and strings. */
-    var symbolProto = Symbol ? Symbol.prototype : undefined,
-        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
-        symbolToString = symbolProto ? symbolProto.toString : undefined;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a `lodash` object which wraps `value` to enable implicit method
-     * chain sequences. Methods that operate on and return arrays, collections,
-     * and functions can be chained together. Methods that retrieve a single value
-     * or may return a primitive value will automatically end the chain sequence
-     * and return the unwrapped value. Otherwise, the value must be unwrapped
-     * with `_#value`.
-     *
-     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
-     * enabled using `_.chain`.
-     *
-     * The execution of chained methods is lazy, that is, it's deferred until
-     * `_#value` is implicitly or explicitly called.
-     *
-     * Lazy evaluation allows several methods to support shortcut fusion.
-     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
-     * the creation of intermediate arrays and can greatly reduce the number of
-     * iteratee executions. Sections of a chain sequence qualify for shortcut
-     * fusion if the section is applied to an array and iteratees accept only
-     * one argument. The heuristic for whether a section qualifies for shortcut
-     * fusion is subject to change.
-     *
-     * Chaining is supported in custom builds as long as the `_#value` method is
-     * directly or indirectly included in the build.
-     *
-     * In addition to lodash methods, wrappers have `Array` and `String` methods.
-     *
-     * The wrapper `Array` methods are:
-     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
-     *
-     * The wrapper `String` methods are:
-     * `replace` and `split`
-     *
-     * The wrapper methods that support shortcut fusion are:
-     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
-     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
-     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
-     *
-     * The chainable wrapper methods are:
-     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
-     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
-     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
-     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
-     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
-     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
-     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
-     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
-     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
-     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
-     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
-     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
-     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
-     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
-     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
-     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
-     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
-     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
-     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
-     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
-     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
-     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
-     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
-     * `zipObject`, `zipObjectDeep`, and `zipWith`
-     *
-     * The wrapper methods that are **not** chainable by default are:
-     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
-     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
-     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
-     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
-     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
-     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
-     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
-     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
-     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
-     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
-     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
-     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
-     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
-     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
-     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
-     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
-     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
-     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
-     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
-     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
-     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
-     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
-     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
-     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
-     * `upperFirst`, `value`, and `words`
-     *
-     * @name _
-     * @constructor
-     * @category Seq
-     * @param {*} value The value to wrap in a `lodash` instance.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var wrapped = _([1, 2, 3]);
-     *
-     * // Returns an unwrapped value.
-     * wrapped.reduce(_.add);
-     * // => 6
-     *
-     * // Returns a wrapped value.
-     * var squares = wrapped.map(square);
-     *
-     * _.isArray(squares);
-     * // => false
-     *
-     * _.isArray(squares.value());
-     * // => true
-     */
-    function lodash(value) {
-      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
-        if (value instanceof LodashWrapper) {
-          return value;
-        }
-        if (hasOwnProperty.call(value, '__wrapped__')) {
-          return wrapperClone(value);
-        }
-      }
-      return new LodashWrapper(value);
-    }
-
-    /**
-     * The base implementation of `_.create` without support for assigning
-     * properties to the created object.
-     *
-     * @private
-     * @param {Object} proto The object to inherit from.
-     * @returns {Object} Returns the new object.
-     */
-    var baseCreate = (function() {
-      function object() {}
-      return function(proto) {
-        if (!isObject(proto)) {
-          return {};
-        }
-        if (objectCreate) {
-          return objectCreate(proto);
-        }
-        object.prototype = proto;
-        var result = new object;
-        object.prototype = undefined;
-        return result;
-      };
-    }());
-
-    /**
-     * The function whose prototype chain sequence wrappers inherit from.
-     *
-     * @private
-     */
-    function baseLodash() {
-      // No operation performed.
-    }
-
-    /**
-     * The base constructor for creating `lodash` wrapper objects.
-     *
-     * @private
-     * @param {*} value The value to wrap.
-     * @param {boolean} [chainAll] Enable explicit method chain sequences.
-     */
-    function LodashWrapper(value, chainAll) {
-      this.__wrapped__ = value;
-      this.__actions__ = [];
-      this.__chain__ = !!chainAll;
-      this.__index__ = 0;
-      this.__values__ = undefined;
-    }
-
-    /**
-     * By default, the template delimiters used by lodash are like those in
-     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
-     * following template settings to use alternative delimiters.
-     *
-     * @static
-     * @memberOf _
-     * @type {Object}
-     */
-    lodash.templateSettings = {
-
-      /**
-       * Used to detect `data` property values to be HTML-escaped.
-       *
-       * @memberOf _.templateSettings
-       * @type {RegExp}
-       */
-      'escape': reEscape,
-
-      /**
-       * Used to detect code to be evaluated.
-       *
-       * @memberOf _.templateSettings
-       * @type {RegExp}
-       */
-      'evaluate': reEvaluate,
-
-      /**
-       * Used to detect `data` property values to inject.
-       *
-       * @memberOf _.templateSettings
-       * @type {RegExp}
-       */
-      'interpolate': reInterpolate,
-
-      /**
-       * Used to reference the data object in the template text.
-       *
-       * @memberOf _.templateSettings
-       * @type {string}
-       */
-      'variable': '',
-
-      /**
-       * Used to import variables into the compiled template.
-       *
-       * @memberOf _.templateSettings
-       * @type {Object}
-       */
-      'imports': {
-
-        /**
-         * A reference to the `lodash` function.
-         *
-         * @memberOf _.templateSettings.imports
-         * @type {Function}
-         */
-        '_': lodash
-      }
-    };
-
-    // Ensure wrappers are instances of `baseLodash`.
-    lodash.prototype = baseLodash.prototype;
-    lodash.prototype.constructor = lodash;
-
-    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
-    LodashWrapper.prototype.constructor = LodashWrapper;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
-     *
-     * @private
-     * @constructor
-     * @param {*} value The value to wrap.
-     */
-    function LazyWrapper(value) {
-      this.__wrapped__ = value;
-      this.__actions__ = [];
-      this.__dir__ = 1;
-      this.__filtered__ = false;
-      this.__iteratees__ = [];
-      this.__takeCount__ = MAX_ARRAY_LENGTH;
-      this.__views__ = [];
-    }
-
-    /**
-     * Creates a clone of the lazy wrapper object.
-     *
-     * @private
-     * @name clone
-     * @memberOf LazyWrapper
-     * @returns {Object} Returns the cloned `LazyWrapper` object.
-     */
-    function lazyClone() {
-      var result = new LazyWrapper(this.__wrapped__);
-      result.__actions__ = copyArray(this.__actions__);
-      result.__dir__ = this.__dir__;
-      result.__filtered__ = this.__filtered__;
-      result.__iteratees__ = copyArray(this.__iteratees__);
-      result.__takeCount__ = this.__takeCount__;
-      result.__views__ = copyArray(this.__views__);
-      return result;
-    }
-
-    /**
-     * Reverses the direction of lazy iteration.
-     *
-     * @private
-     * @name reverse
-     * @memberOf LazyWrapper
-     * @returns {Object} Returns the new reversed `LazyWrapper` object.
-     */
-    function lazyReverse() {
-      if (this.__filtered__) {
-        var result = new LazyWrapper(this);
-        result.__dir__ = -1;
-        result.__filtered__ = true;
-      } else {
-        result = this.clone();
-        result.__dir__ *= -1;
-      }
-      return result;
-    }
-
-    /**
-     * Extracts the unwrapped value from its lazy wrapper.
-     *
-     * @private
-     * @name value
-     * @memberOf LazyWrapper
-     * @returns {*} Returns the unwrapped value.
-     */
-    function lazyValue() {
-      var array = this.__wrapped__.value(),
-          dir = this.__dir__,
-          isArr = isArray(array),
-          isRight = dir < 0,
-          arrLength = isArr ? array.length : 0,
-          view = getView(0, arrLength, this.__views__),
-          start = view.start,
-          end = view.end,
-          length = end - start,
-          index = isRight ? end : (start - 1),
-          iteratees = this.__iteratees__,
-          iterLength = iteratees.length,
-          resIndex = 0,
-          takeCount = nativeMin(length, this.__takeCount__);
-
-      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
-        return baseWrapperValue(array, this.__actions__);
-      }
-      var result = [];
-
-      outer:
-      while (length-- && resIndex < takeCount) {
-        index += dir;
-
-        var iterIndex = -1,
-            value = array[index];
-
-        while (++iterIndex < iterLength) {
-          var data = iteratees[iterIndex],
-              iteratee = data.iteratee,
-              type = data.type,
-              computed = iteratee(value);
-
-          if (type == LAZY_MAP_FLAG) {
-            value = computed;
-          } else if (!computed) {
-            if (type == LAZY_FILTER_FLAG) {
-              continue outer;
-            } else {
-              break outer;
-            }
-          }
-        }
-        result[resIndex++] = value;
-      }
-      return result;
-    }
-
-    // Ensure `LazyWrapper` is an instance of `baseLodash`.
-    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
-    LazyWrapper.prototype.constructor = LazyWrapper;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a hash object.
-     *
-     * @private
-     * @constructor
-     * @param {Array} [entries] The key-value pairs to cache.
-     */
-    function Hash(entries) {
-      var index = -1,
-          length = entries == null ? 0 : entries.length;
-
-      this.clear();
-      while (++index < length) {
-        var entry = entries[index];
-        this.set(entry[0], entry[1]);
-      }
-    }
-
-    /**
-     * Removes all key-value entries from the hash.
-     *
-     * @private
-     * @name clear
-     * @memberOf Hash
-     */
-    function hashClear() {
-      this.__data__ = nativeCreate ? nativeCreate(null) : {};
-      this.size = 0;
-    }
-
-    /**
-     * Removes `key` and its value from the hash.
-     *
-     * @private
-     * @name delete
-     * @memberOf Hash
-     * @param {Object} hash The hash to modify.
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
-     */
-    function hashDelete(key) {
-      var result = this.has(key) && delete this.__data__[key];
-      this.size -= result ? 1 : 0;
-      return result;
-    }
-
-    /**
-     * Gets the hash value for `key`.
-     *
-     * @private
-     * @name get
-     * @memberOf Hash
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the entry value.
-     */
-    function hashGet(key) {
-      var data = this.__data__;
-      if (nativeCreate) {
-        var result = data[key];
-        return result === HASH_UNDEFINED ? undefined : result;
-      }
-      return hasOwnProperty.call(data, key) ? data[key] : undefined;
-    }
-
-    /**
-     * Checks if a hash value for `key` exists.
-     *
-     * @private
-     * @name has
-     * @memberOf Hash
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function hashHas(key) {
-      var data = this.__data__;
-      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
-    }
-
-    /**
-     * Sets the hash `key` to `value`.
-     *
-     * @private
-     * @name set
-     * @memberOf Hash
-     * @param {string} key The key of the value to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns the hash instance.
-     */
-    function hashSet(key, value) {
-      var data = this.__data__;
-      this.size += this.has(key) ? 0 : 1;
-      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
-      return this;
-    }
-
-    // Add methods to `Hash`.
-    Hash.prototype.clear = hashClear;
-    Hash.prototype['delete'] = hashDelete;
-    Hash.prototype.get = hashGet;
-    Hash.prototype.has = hashHas;
-    Hash.prototype.set = hashSet;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an list cache object.
-     *
-     * @private
-     * @constructor
-     * @param {Array} [entries] The key-value pairs to cache.
-     */
-    function ListCache(entries) {
-      var index = -1,
-          length = entries == null ? 0 : entries.length;
-
-      this.clear();
-      while (++index < length) {
-        var entry = entries[index];
-        this.set(entry[0], entry[1]);
-      }
-    }
-
-    /**
-     * Removes all key-value entries from the list cache.
-     *
-     * @private
-     * @name clear
-     * @memberOf ListCache
-     */
-    function listCacheClear() {
-      this.__data__ = [];
-      this.size = 0;
-    }
-
-    /**
-     * Removes `key` and its value from the list cache.
-     *
-     * @private
-     * @name delete
-     * @memberOf ListCache
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
-     */
-    function listCacheDelete(key) {
-      var data = this.__data__,
-          index = assocIndexOf(data, key);
-
-      if (index < 0) {
-        return false;
-      }
-      var lastIndex = data.length - 1;
-      if (index == lastIndex) {
-        data.pop();
-      } else {
-        splice.call(data, index, 1);
-      }
-      --this.size;
-      return true;
-    }
-
-    /**
-     * Gets the list cache value for `key`.
-     *
-     * @private
-     * @name get
-     * @memberOf ListCache
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the entry value.
-     */
-    function listCacheGet(key) {
-      var data = this.__data__,
-          index = assocIndexOf(data, key);
-
-      return index < 0 ? undefined : data[index][1];
-    }
-
-    /**
-     * Checks if a list cache value for `key` exists.
-     *
-     * @private
-     * @name has
-     * @memberOf ListCache
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function listCacheHas(key) {
-      return assocIndexOf(this.__data__, key) > -1;
-    }
-
-    /**
-     * Sets the list cache `key` to `value`.
-     *
-     * @private
-     * @name set
-     * @memberOf ListCache
-     * @param {string} key The key of the value to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns the list cache instance.
-     */
-    function listCacheSet(key, value) {
-      var data = this.__data__,
-          index = assocIndexOf(data, key);
-
-      if (index < 0) {
-        ++this.size;
-        data.push([key, value]);
-      } else {
-        data[index][1] = value;
-      }
-      return this;
-    }
-
-    // Add methods to `ListCache`.
-    ListCache.prototype.clear = listCacheClear;
-    ListCache.prototype['delete'] = listCacheDelete;
-    ListCache.prototype.get = listCacheGet;
-    ListCache.prototype.has = listCacheHas;
-    ListCache.prototype.set = listCacheSet;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a map cache object to store key-value pairs.
-     *
-     * @private
-     * @constructor
-     * @param {Array} [entries] The key-value pairs to cache.
-     */
-    function MapCache(entries) {
-      var index = -1,
-          length = entries == null ? 0 : entries.length;
-
-      this.clear();
-      while (++index < length) {
-        var entry = entries[index];
-        this.set(entry[0], entry[1]);
-      }
-    }
-
-    /**
-     * Removes all key-value entries from the map.
-     *
-     * @private
-     * @name clear
-     * @memberOf MapCache
-     */
-    function mapCacheClear() {
-      this.size = 0;
-      this.__data__ = {
-        'hash': new Hash,
-        'map': new (Map || ListCache),
-        'string': new Hash
-      };
-    }
-
-    /**
-     * Removes `key` and its value from the map.
-     *
-     * @private
-     * @name delete
-     * @memberOf MapCache
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
-     */
-    function mapCacheDelete(key) {
-      var result = getMapData(this, key)['delete'](key);
-      this.size -= result ? 1 : 0;
-      return result;
-    }
-
-    /**
-     * Gets the map value for `key`.
-     *
-     * @private
-     * @name get
-     * @memberOf MapCache
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the entry value.
-     */
-    function mapCacheGet(key) {
-      return getMapData(this, key).get(key);
-    }
-
-    /**
-     * Checks if a map value for `key` exists.
-     *
-     * @private
-     * @name has
-     * @memberOf MapCache
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function mapCacheHas(key) {
-      return getMapData(this, key).has(key);
-    }
-
-    /**
-     * Sets the map `key` to `value`.
-     *
-     * @private
-     * @name set
-     * @memberOf MapCache
-     * @param {string} key The key of the value to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns the map cache instance.
-     */
-    function mapCacheSet(key, value) {
-      var data = getMapData(this, key),
-          size = data.size;
-
-      data.set(key, value);
-      this.size += data.size == size ? 0 : 1;
-      return this;
-    }
-
-    // Add methods to `MapCache`.
-    MapCache.prototype.clear = mapCacheClear;
-    MapCache.prototype['delete'] = mapCacheDelete;
-    MapCache.prototype.get = mapCacheGet;
-    MapCache.prototype.has = mapCacheHas;
-    MapCache.prototype.set = mapCacheSet;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     *
-     * Creates an array cache object to store unique values.
-     *
-     * @private
-     * @constructor
-     * @param {Array} [values] The values to cache.
-     */
-    function SetCache(values) {
-      var index = -1,
-          length = values == null ? 0 : values.length;
-
-      this.__data__ = new MapCache;
-      while (++index < length) {
-        this.add(values[index]);
-      }
-    }
-
-    /**
-     * Adds `value` to the array cache.
-     *
-     * @private
-     * @name add
-     * @memberOf SetCache
-     * @alias push
-     * @param {*} value The value to cache.
-     * @returns {Object} Returns the cache instance.
-     */
-    function setCacheAdd(value) {
-      this.__data__.set(value, HASH_UNDEFINED);
-      return this;
-    }
-
-    /**
-     * Checks if `value` is in the array cache.
-     *
-     * @private
-     * @name has
-     * @memberOf SetCache
-     * @param {*} value The value to search for.
-     * @returns {number} Returns `true` if `value` is found, else `false`.
-     */
-    function setCacheHas(value) {
-      return this.__data__.has(value);
-    }
-
-    // Add methods to `SetCache`.
-    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
-    SetCache.prototype.has = setCacheHas;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a stack cache object to store key-value pairs.
-     *
-     * @private
-     * @constructor
-     * @param {Array} [entries] The key-value pairs to cache.
-     */
-    function Stack(entries) {
-      var data = this.__data__ = new ListCache(entries);
-      this.size = data.size;
-    }
-
-    /**
-     * Removes all key-value entries from the stack.
-     *
-     * @private
-     * @name clear
-     * @memberOf Stack
-     */
-    function stackClear() {
-      this.__data__ = new ListCache;
-      this.size = 0;
-    }
-
-    /**
-     * Removes `key` and its value from the stack.
-     *
-     * @private
-     * @name delete
-     * @memberOf Stack
-     * @param {string} key The key of the value to remove.
-     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
-     */
-    function stackDelete(key) {
-      var data = this.__data__,
-          result = data['delete'](key);
-
-      this.size = data.size;
-      return result;
-    }
-
-    /**
-     * Gets the stack value for `key`.
-     *
-     * @private
-     * @name get
-     * @memberOf Stack
-     * @param {string} key The key of the value to get.
-     * @returns {*} Returns the entry value.
-     */
-    function stackGet(key) {
-      return this.__data__.get(key);
-    }
-
-    /**
-     * Checks if a stack value for `key` exists.
-     *
-     * @private
-     * @name has
-     * @memberOf Stack
-     * @param {string} key The key of the entry to check.
-     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
-     */
-    function stackHas(key) {
-      return this.__data__.has(key);
-    }
-
-    /**
-     * Sets the stack `key` to `value`.
-     *
-     * @private
-     * @name set
-     * @memberOf Stack
-     * @param {string} key The key of the value to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns the stack cache instance.
-     */
-    function stackSet(key, value) {
-      var data = this.__data__;
-      if (data instanceof ListCache) {
-        var pairs = data.__data__;
-        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
-          pairs.push([key, value]);
-          this.size = ++data.size;
-          return this;
-        }
-        data = this.__data__ = new MapCache(pairs);
-      }
-      data.set(key, value);
-      this.size = data.size;
-      return this;
-    }
-
-    // Add methods to `Stack`.
-    Stack.prototype.clear = stackClear;
-    Stack.prototype['delete'] = stackDelete;
-    Stack.prototype.get = stackGet;
-    Stack.prototype.has = stackHas;
-    Stack.prototype.set = stackSet;
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an array of the enumerable property names of the array-like `value`.
-     *
-     * @private
-     * @param {*} value The value to query.
-     * @param {boolean} inherited Specify returning inherited property names.
-     * @returns {Array} Returns the array of property names.
-     */
-    function arrayLikeKeys(value, inherited) {
-      var isArr = isArray(value),
-          isArg = !isArr && isArguments(value),
-          isBuff = !isArr && !isArg && isBuffer(value),
-          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
-          skipIndexes = isArr || isArg || isBuff || isType,
-          result = skipIndexes ? baseTimes(value.length, String) : [],
-          length = result.length;
-
-      for (var key in value) {
-        if ((inherited || hasOwnProperty.call(value, key)) &&
-            !(skipIndexes && (
-               // Safari 9 has enumerable `arguments.length` in strict mode.
-               key == 'length' ||
-               // Node.js 0.10 has enumerable non-index properties on buffers.
-               (isBuff && (key == 'offset' || key == 'parent')) ||
-               // PhantomJS 2 has enumerable non-index properties on typed arrays.
-               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
-               // Skip index properties.
-               isIndex(key, length)
-            ))) {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * A specialized version of `_.sample` for arrays.
-     *
-     * @private
-     * @param {Array} array The array to sample.
-     * @returns {*} Returns the random element.
-     */
-    function arraySample(array) {
-      var length = array.length;
-      return length ? array[baseRandom(0, length - 1)] : undefined;
-    }
-
-    /**
-     * A specialized version of `_.sampleSize` for arrays.
-     *
-     * @private
-     * @param {Array} array The array to sample.
-     * @param {number} n The number of elements to sample.
-     * @returns {Array} Returns the random elements.
-     */
-    function arraySampleSize(array, n) {
-      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
-    }
-
-    /**
-     * A specialized version of `_.shuffle` for arrays.
-     *
-     * @private
-     * @param {Array} array The array to shuffle.
-     * @returns {Array} Returns the new shuffled array.
-     */
-    function arrayShuffle(array) {
-      return shuffleSelf(copyArray(array));
-    }
-
-    /**
-     * This function is like `assignValue` except that it doesn't assign
-     * `undefined` values.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {string} key The key of the property to assign.
-     * @param {*} value The value to assign.
-     */
-    function assignMergeValue(object, key, value) {
-      if ((value !== undefined && !eq(object[key], value)) ||
-          (value === undefined && !(key in object))) {
-        baseAssignValue(object, key, value);
-      }
-    }
-
-    /**
-     * Assigns `value` to `key` of `object` if the existing value is not equivalent
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {string} key The key of the property to assign.
-     * @param {*} value The value to assign.
-     */
-    function assignValue(object, key, value) {
-      var objValue = object[key];
-      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
-          (value === undefined && !(key in object))) {
-        baseAssignValue(object, key, value);
-      }
-    }
-
-    /**
-     * Gets the index at which the `key` is found in `array` of key-value pairs.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {*} key The key to search for.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     */
-    function assocIndexOf(array, key) {
-      var length = array.length;
-      while (length--) {
-        if (eq(array[length][0], key)) {
-          return length;
-        }
-      }
-      return -1;
-    }
-
-    /**
-     * Aggregates elements of `collection` on `accumulator` with keys transformed
-     * by `iteratee` and values set by `setter`.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} setter The function to set `accumulator` values.
-     * @param {Function} iteratee The iteratee to transform keys.
-     * @param {Object} accumulator The initial aggregated object.
-     * @returns {Function} Returns `accumulator`.
-     */
-    function baseAggregator(collection, setter, iteratee, accumulator) {
-      baseEach(collection, function(value, key, collection) {
-        setter(accumulator, value, iteratee(value), collection);
-      });
-      return accumulator;
-    }
-
-    /**
-     * The base implementation of `_.assign` without support for multiple sources
-     * or `customizer` functions.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @returns {Object} Returns `object`.
-     */
-    function baseAssign(object, source) {
-      return object && copyObject(source, keys(source), object);
-    }
-
-    /**
-     * The base implementation of `_.assignIn` without support for multiple sources
-     * or `customizer` functions.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @returns {Object} Returns `object`.
-     */
-    function baseAssignIn(object, source) {
-      return object && copyObject(source, keysIn(source), object);
-    }
-
-    /**
-     * The base implementation of `assignValue` and `assignMergeValue` without
-     * value checks.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {string} key The key of the property to assign.
-     * @param {*} value The value to assign.
-     */
-    function baseAssignValue(object, key, value) {
-      if (key == '__proto__' && defineProperty) {
-        defineProperty(object, key, {
-          'configurable': true,
-          'enumerable': true,
-          'value': value,
-          'writable': true
-        });
-      } else {
-        object[key] = value;
-      }
-    }
-
-    /**
-     * The base implementation of `_.at` without support for individual paths.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {string[]} paths The property paths to pick.
-     * @returns {Array} Returns the picked elements.
-     */
-    function baseAt(object, paths) {
-      var index = -1,
-          length = paths.length,
-          result = Array(length),
-          skip = object == null;
-
-      while (++index < length) {
-        result[index] = skip ? undefined : get(object, paths[index]);
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.clamp` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {number} number The number to clamp.
-     * @param {number} [lower] The lower bound.
-     * @param {number} upper The upper bound.
-     * @returns {number} Returns the clamped number.
-     */
-    function baseClamp(number, lower, upper) {
-      if (number === number) {
-        if (upper !== undefined) {
-          number = number <= upper ? number : upper;
-        }
-        if (lower !== undefined) {
-          number = number >= lower ? number : lower;
-        }
-      }
-      return number;
-    }
-
-    /**
-     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
-     * traversed objects.
-     *
-     * @private
-     * @param {*} value The value to clone.
-     * @param {boolean} bitmask The bitmask flags.
-     *  1 - Deep clone
-     *  2 - Flatten inherited properties
-     *  4 - Clone symbols
-     * @param {Function} [customizer] The function to customize cloning.
-     * @param {string} [key] The key of `value`.
-     * @param {Object} [object] The parent object of `value`.
-     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
-     * @returns {*} Returns the cloned value.
-     */
-    function baseClone(value, bitmask, customizer, key, object, stack) {
-      var result,
-          isDeep = bitmask & CLONE_DEEP_FLAG,
-          isFlat = bitmask & CLONE_FLAT_FLAG,
-          isFull = bitmask & CLONE_SYMBOLS_FLAG;
-
-      if (customizer) {
-        result = object ? customizer(value, key, object, stack) : customizer(value);
-      }
-      if (result !== undefined) {
-        return result;
-      }
-      if (!isObject(value)) {
-        return value;
-      }
-      var isArr = isArray(value);
-      if (isArr) {
-        result = initCloneArray(value);
-        if (!isDeep) {
-          return copyArray(value, result);
-        }
-      } else {
-        var tag = getTag(value),
-            isFunc = tag == funcTag || tag == genTag;
-
-        if (isBuffer(value)) {
-          return cloneBuffer(value, isDeep);
-        }
-        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
-          result = (isFlat || isFunc) ? {} : initCloneObject(value);
-          if (!isDeep) {
-            return isFlat
-              ? copySymbolsIn(value, baseAssignIn(result, value))
-              : copySymbols(value, baseAssign(result, value));
-          }
-        } else {
-          if (!cloneableTags[tag]) {
-            return object ? value : {};
-          }
-          result = initCloneByTag(value, tag, isDeep);
-        }
-      }
-      // Check for circular references and return its corresponding clone.
-      stack || (stack = new Stack);
-      var stacked = stack.get(value);
-      if (stacked) {
-        return stacked;
-      }
-      stack.set(value, result);
-
-      if (isSet(value)) {
-        value.forEach(function(subValue) {
-          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
-        });
-
-        return result;
-      }
-
-      if (isMap(value)) {
-        value.forEach(function(subValue, key) {
-          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
-        });
-
-        return result;
-      }
-
-      var keysFunc = isFull
-        ? (isFlat ? getAllKeysIn : getAllKeys)
-        : (isFlat ? keysIn : keys);
-
-      var props = isArr ? undefined : keysFunc(value);
-      arrayEach(props || value, function(subValue, key) {
-        if (props) {
-          key = subValue;
-          subValue = value[key];
-        }
-        // Recursively populate clone (susceptible to call stack limits).
-        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.conforms` which doesn't clone `source`.
-     *
-     * @private
-     * @param {Object} source The object of property predicates to conform to.
-     * @returns {Function} Returns the new spec function.
-     */
-    function baseConforms(source) {
-      var props = keys(source);
-      return function(object) {
-        return baseConformsTo(object, source, props);
-      };
-    }
-
-    /**
-     * The base implementation of `_.conformsTo` which accepts `props` to check.
-     *
-     * @private
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property predicates to conform to.
-     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
-     */
-    function baseConformsTo(object, source, props) {
-      var length = props.length;
-      if (object == null) {
-        return !length;
-      }
-      object = Object(object);
-      while (length--) {
-        var key = props[length],
-            predicate = source[key],
-            value = object[key];
-
-        if ((value === undefined && !(key in object)) || !predicate(value)) {
-          return false;
-        }
-      }
-      return true;
-    }
-
-    /**
-     * The base implementation of `_.delay` and `_.defer` which accepts `args`
-     * to provide to `func`.
-     *
-     * @private
-     * @param {Function} func The function to delay.
-     * @param {number} wait The number of milliseconds to delay invocation.
-     * @param {Array} args The arguments to provide to `func`.
-     * @returns {number|Object} Returns the timer id or timeout object.
-     */
-    function baseDelay(func, wait, args) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      return setTimeout(function() { func.apply(undefined, args); }, wait);
-    }
-
-    /**
-     * The base implementation of methods like `_.difference` without support
-     * for excluding multiple arrays or iteratee shorthands.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {Array} values The values to exclude.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of filtered values.
-     */
-    function baseDifference(array, values, iteratee, comparator) {
-      var index = -1,
-          includes = arrayIncludes,
-          isCommon = true,
-          length = array.length,
-          result = [],
-          valuesLength = values.length;
-
-      if (!length) {
-        return result;
-      }
-      if (iteratee) {
-        values = arrayMap(values, baseUnary(iteratee));
-      }
-      if (comparator) {
-        includes = arrayIncludesWith;
-        isCommon = false;
-      }
-      else if (values.length >= LARGE_ARRAY_SIZE) {
-        includes = cacheHas;
-        isCommon = false;
-        values = new SetCache(values);
-      }
-      outer:
-      while (++index < length) {
-        var value = array[index],
-            computed = iteratee == null ? value : iteratee(value);
-
-        value = (comparator || value !== 0) ? value : 0;
-        if (isCommon && computed === computed) {
-          var valuesIndex = valuesLength;
-          while (valuesIndex--) {
-            if (values[valuesIndex] === computed) {
-              continue outer;
-            }
-          }
-          result.push(value);
-        }
-        else if (!includes(values, computed, comparator)) {
-          result.push(value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.forEach` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array|Object} Returns `collection`.
-     */
-    var baseEach = createBaseEach(baseForOwn);
-
-    /**
-     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array|Object} Returns `collection`.
-     */
-    var baseEachRight = createBaseEach(baseForOwnRight, true);
-
-    /**
-     * The base implementation of `_.every` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if all elements pass the predicate check,
-     *  else `false`
-     */
-    function baseEvery(collection, predicate) {
-      var result = true;
-      baseEach(collection, function(value, index, collection) {
-        result = !!predicate(value, index, collection);
-        return result;
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of methods like `_.max` and `_.min` which accepts a
-     * `comparator` to determine the extremum value.
-     *
-     * @private
-     * @param {Array} array The array to iterate over.
-     * @param {Function} iteratee The iteratee invoked per iteration.
-     * @param {Function} comparator The comparator used to compare values.
-     * @returns {*} Returns the extremum value.
-     */
-    function baseExtremum(array, iteratee, comparator) {
-      var index = -1,
-          length = array.length;
-
-      while (++index < length) {
-        var value = array[index],
-            current = iteratee(value);
-
-        if (current != null && (computed === undefined
-              ? (current === current && !isSymbol(current))
-              : comparator(current, computed)
-            )) {
-          var computed = current,
-              result = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.fill` without an iteratee call guard.
-     *
-     * @private
-     * @param {Array} array The array to fill.
-     * @param {*} value The value to fill `array` with.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns `array`.
-     */
-    function baseFill(array, value, start, end) {
-      var length = array.length;
-
-      start = toInteger(start);
-      if (start < 0) {
-        start = -start > length ? 0 : (length + start);
-      }
-      end = (end === undefined || end > length) ? length : toInteger(end);
-      if (end < 0) {
-        end += length;
-      }
-      end = start > end ? 0 : toLength(end);
-      while (start < end) {
-        array[start++] = value;
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.filter` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {Array} Returns the new filtered array.
-     */
-    function baseFilter(collection, predicate) {
-      var result = [];
-      baseEach(collection, function(value, index, collection) {
-        if (predicate(value, index, collection)) {
-          result.push(value);
-        }
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.flatten` with support for restricting flattening.
-     *
-     * @private
-     * @param {Array} array The array to flatten.
-     * @param {number} depth The maximum recursion depth.
-     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
-     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
-     * @param {Array} [result=[]] The initial result value.
-     * @returns {Array} Returns the new flattened array.
-     */
-    function baseFlatten(array, depth, predicate, isStrict, result) {
-      var index = -1,
-          length = array.length;
-
-      predicate || (predicate = isFlattenable);
-      result || (result = []);
-
-      while (++index < length) {
-        var value = array[index];
-        if (depth > 0 && predicate(value)) {
-          if (depth > 1) {
-            // Recursively flatten arrays (susceptible to call stack limits).
-            baseFlatten(value, depth - 1, predicate, isStrict, result);
-          } else {
-            arrayPush(result, value);
-          }
-        } else if (!isStrict) {
-          result[result.length] = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `baseForOwn` which iterates over `object`
-     * properties returned by `keysFunc` and invokes `iteratee` for each property.
-     * Iteratee functions may exit iteration early by explicitly returning `false`.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} keysFunc The function to get the keys of `object`.
-     * @returns {Object} Returns `object`.
-     */
-    var baseFor = createBaseFor();
-
-    /**
-     * This function is like `baseFor` except that it iterates over properties
-     * in the opposite order.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @param {Function} keysFunc The function to get the keys of `object`.
-     * @returns {Object} Returns `object`.
-     */
-    var baseForRight = createBaseFor(true);
-
-    /**
-     * The base implementation of `_.forOwn` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     */
-    function baseForOwn(object, iteratee) {
-      return object && baseFor(object, iteratee, keys);
-    }
-
-    /**
-     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     */
-    function baseForOwnRight(object, iteratee) {
-      return object && baseForRight(object, iteratee, keys);
-    }
-
-    /**
-     * The base implementation of `_.functions` which creates an array of
-     * `object` function property names filtered from `props`.
-     *
-     * @private
-     * @param {Object} object The object to inspect.
-     * @param {Array} props The property names to filter.
-     * @returns {Array} Returns the function names.
-     */
-    function baseFunctions(object, props) {
-      return arrayFilter(props, function(key) {
-        return isFunction(object[key]);
-      });
-    }
-
-    /**
-     * The base implementation of `_.get` without support for default values.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the property to get.
-     * @returns {*} Returns the resolved value.
-     */
-    function baseGet(object, path) {
-      path = castPath(path, object);
-
-      var index = 0,
-          length = path.length;
-
-      while (object != null && index < length) {
-        object = object[toKey(path[index++])];
-      }
-      return (index && index == length) ? object : undefined;
-    }
-
-    /**
-     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
-     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
-     * symbols of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Function} keysFunc The function to get the keys of `object`.
-     * @param {Function} symbolsFunc The function to get the symbols of `object`.
-     * @returns {Array} Returns the array of property names and symbols.
-     */
-    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
-      var result = keysFunc(object);
-      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-    }
-
-    /**
-     * The base implementation of `getTag` without fallbacks for buggy environments.
-     *
-     * @private
-     * @param {*} value The value to query.
-     * @returns {string} Returns the `toStringTag`.
-     */
-    function baseGetTag(value) {
-      if (value == null) {
-        return value === undefined ? undefinedTag : nullTag;
-      }
-      return (symToStringTag && symToStringTag in Object(value))
-        ? getRawTag(value)
-        : objectToString(value);
-    }
-
-    /**
-     * The base implementation of `_.gt` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is greater than `other`,
-     *  else `false`.
-     */
-    function baseGt(value, other) {
-      return value > other;
-    }
-
-    /**
-     * The base implementation of `_.has` without support for deep paths.
-     *
-     * @private
-     * @param {Object} [object] The object to query.
-     * @param {Array|string} key The key to check.
-     * @returns {boolean} Returns `true` if `key` exists, else `false`.
-     */
-    function baseHas(object, key) {
-      return object != null && hasOwnProperty.call(object, key);
-    }
-
-    /**
-     * The base implementation of `_.hasIn` without support for deep paths.
-     *
-     * @private
-     * @param {Object} [object] The object to query.
-     * @param {Array|string} key The key to check.
-     * @returns {boolean} Returns `true` if `key` exists, else `false`.
-     */
-    function baseHasIn(object, key) {
-      return object != null && key in Object(object);
-    }
-
-    /**
-     * The base implementation of `_.inRange` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {number} number The number to check.
-     * @param {number} start The start of the range.
-     * @param {number} end The end of the range.
-     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
-     */
-    function baseInRange(number, start, end) {
-      return number >= nativeMin(start, end) && number < nativeMax(start, end);
-    }
-
-    /**
-     * The base implementation of methods like `_.intersection`, without support
-     * for iteratee shorthands, that accepts an array of arrays to inspect.
-     *
-     * @private
-     * @param {Array} arrays The arrays to inspect.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of shared values.
-     */
-    function baseIntersection(arrays, iteratee, comparator) {
-      var includes = comparator ? arrayIncludesWith : arrayIncludes,
-          length = arrays[0].length,
-          othLength = arrays.length,
-          othIndex = othLength,
-          caches = Array(othLength),
-          maxLength = Infinity,
-          result = [];
-
-      while (othIndex--) {
-        var array = arrays[othIndex];
-        if (othIndex && iteratee) {
-          array = arrayMap(array, baseUnary(iteratee));
-        }
-        maxLength = nativeMin(array.length, maxLength);
-        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
-          ? new SetCache(othIndex && array)
-          : undefined;
-      }
-      array = arrays[0];
-
-      var index = -1,
-          seen = caches[0];
-
-      outer:
-      while (++index < length && result.length < maxLength) {
-        var value = array[index],
-            computed = iteratee ? iteratee(value) : value;
-
-        value = (comparator || value !== 0) ? value : 0;
-        if (!(seen
-              ? cacheHas(seen, computed)
-              : includes(result, computed, comparator)
-            )) {
-          othIndex = othLength;
-          while (--othIndex) {
-            var cache = caches[othIndex];
-            if (!(cache
-                  ? cacheHas(cache, computed)
-                  : includes(arrays[othIndex], computed, comparator))
-                ) {
-              continue outer;
-            }
-          }
-          if (seen) {
-            seen.push(computed);
-          }
-          result.push(value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.invert` and `_.invertBy` which inverts
-     * `object` with values transformed by `iteratee` and set by `setter`.
-     *
-     * @private
-     * @param {Object} object The object to iterate over.
-     * @param {Function} setter The function to set `accumulator` values.
-     * @param {Function} iteratee The iteratee to transform values.
-     * @param {Object} accumulator The initial inverted object.
-     * @returns {Function} Returns `accumulator`.
-     */
-    function baseInverter(object, setter, iteratee, accumulator) {
-      baseForOwn(object, function(value, key, object) {
-        setter(accumulator, iteratee(value), key, object);
-      });
-      return accumulator;
-    }
-
-    /**
-     * The base implementation of `_.invoke` without support for individual
-     * method arguments.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the method to invoke.
-     * @param {Array} args The arguments to invoke the method with.
-     * @returns {*} Returns the result of the invoked method.
-     */
-    function baseInvoke(object, path, args) {
-      path = castPath(path, object);
-      object = parent(object, path);
-      var func = object == null ? object : object[toKey(last(path))];
-      return func == null ? undefined : apply(func, object, args);
-    }
-
-    /**
-     * The base implementation of `_.isArguments`.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
-     */
-    function baseIsArguments(value) {
-      return isObjectLike(value) && baseGetTag(value) == argsTag;
-    }
-
-    /**
-     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
-     */
-    function baseIsArrayBuffer(value) {
-      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
-    }
-
-    /**
-     * The base implementation of `_.isDate` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
-     */
-    function baseIsDate(value) {
-      return isObjectLike(value) && baseGetTag(value) == dateTag;
-    }
-
-    /**
-     * The base implementation of `_.isEqual` which supports partial comparisons
-     * and tracks traversed objects.
-     *
-     * @private
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @param {boolean} bitmask The bitmask flags.
-     *  1 - Unordered comparison
-     *  2 - Partial comparison
-     * @param {Function} [customizer] The function to customize comparisons.
-     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     */
-    function baseIsEqual(value, other, bitmask, customizer, stack) {
-      if (value === other) {
-        return true;
-      }
-      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
-        return value !== value && other !== other;
-      }
-      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
-    }
-
-    /**
-     * A specialized version of `baseIsEqual` for arrays and objects which performs
-     * deep comparisons and tracks traversed objects enabling objects with circular
-     * references to be compared.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
-     * @param {Function} customizer The function to customize comparisons.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
-      var objIsArr = isArray(object),
-          othIsArr = isArray(other),
-          objTag = objIsArr ? arrayTag : getTag(object),
-          othTag = othIsArr ? arrayTag : getTag(other);
-
-      objTag = objTag == argsTag ? objectTag : objTag;
-      othTag = othTag == argsTag ? objectTag : othTag;
-
-      var objIsObj = objTag == objectTag,
-          othIsObj = othTag == objectTag,
-          isSameTag = objTag == othTag;
-
-      if (isSameTag && isBuffer(object)) {
-        if (!isBuffer(other)) {
-          return false;
-        }
-        objIsArr = true;
-        objIsObj = false;
-      }
-      if (isSameTag && !objIsObj) {
-        stack || (stack = new Stack);
-        return (objIsArr || isTypedArray(object))
-          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
-          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
-      }
-      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
-        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
-            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
-
-        if (objIsWrapped || othIsWrapped) {
-          var objUnwrapped = objIsWrapped ? object.value() : object,
-              othUnwrapped = othIsWrapped ? other.value() : other;
-
-          stack || (stack = new Stack);
-          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
-        }
-      }
-      if (!isSameTag) {
-        return false;
-      }
-      stack || (stack = new Stack);
-      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
-    }
-
-    /**
-     * The base implementation of `_.isMap` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
-     */
-    function baseIsMap(value) {
-      return isObjectLike(value) && getTag(value) == mapTag;
-    }
-
-    /**
-     * The base implementation of `_.isMatch` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property values to match.
-     * @param {Array} matchData The property names, values, and compare flags to match.
-     * @param {Function} [customizer] The function to customize comparisons.
-     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
-     */
-    function baseIsMatch(object, source, matchData, customizer) {
-      var index = matchData.length,
-          length = index,
-          noCustomizer = !customizer;
-
-      if (object == null) {
-        return !length;
-      }
-      object = Object(object);
-      while (index--) {
-        var data = matchData[index];
-        if ((noCustomizer && data[2])
-              ? data[1] !== object[data[0]]
-              : !(data[0] in object)
-            ) {
-          return false;
-        }
-      }
-      while (++index < length) {
-        data = matchData[index];
-        var key = data[0],
-            objValue = object[key],
-            srcValue = data[1];
-
-        if (noCustomizer && data[2]) {
-          if (objValue === undefined && !(key in object)) {
-            return false;
-          }
-        } else {
-          var stack = new Stack;
-          if (customizer) {
-            var result = customizer(objValue, srcValue, key, object, source, stack);
-          }
-          if (!(result === undefined
-                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
-                : result
-              )) {
-            return false;
-          }
-        }
-      }
-      return true;
-    }
-
-    /**
-     * The base implementation of `_.isNative` without bad shim checks.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a native function,
-     *  else `false`.
-     */
-    function baseIsNative(value) {
-      if (!isObject(value) || isMasked(value)) {
-        return false;
-      }
-      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
-      return pattern.test(toSource(value));
-    }
-
-    /**
-     * The base implementation of `_.isRegExp` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
-     */
-    function baseIsRegExp(value) {
-      return isObjectLike(value) && baseGetTag(value) == regexpTag;
-    }
-
-    /**
-     * The base implementation of `_.isSet` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
-     */
-    function baseIsSet(value) {
-      return isObjectLike(value) && getTag(value) == setTag;
-    }
-
-    /**
-     * The base implementation of `_.isTypedArray` without Node.js optimizations.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
-     */
-    function baseIsTypedArray(value) {
-      return isObjectLike(value) &&
-        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
-    }
-
-    /**
-     * The base implementation of `_.iteratee`.
-     *
-     * @private
-     * @param {*} [value=_.identity] The value to convert to an iteratee.
-     * @returns {Function} Returns the iteratee.
-     */
-    function baseIteratee(value) {
-      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
-      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
-      if (typeof value == 'function') {
-        return value;
-      }
-      if (value == null) {
-        return identity;
-      }
-      if (typeof value == 'object') {
-        return isArray(value)
-          ? baseMatchesProperty(value[0], value[1])
-          : baseMatches(value);
-      }
-      return property(value);
-    }
-
-    /**
-     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     */
-    function baseKeys(object) {
-      if (!isPrototype(object)) {
-        return nativeKeys(object);
-      }
-      var result = [];
-      for (var key in Object(object)) {
-        if (hasOwnProperty.call(object, key) && key != 'constructor') {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     */
-    function baseKeysIn(object) {
-      if (!isObject(object)) {
-        return nativeKeysIn(object);
-      }
-      var isProto = isPrototype(object),
-          result = [];
-
-      for (var key in object) {
-        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.lt` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is less than `other`,
-     *  else `false`.
-     */
-    function baseLt(value, other) {
-      return value < other;
-    }
-
-    /**
-     * The base implementation of `_.map` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} iteratee The function invoked per iteration.
-     * @returns {Array} Returns the new mapped array.
-     */
-    function baseMap(collection, iteratee) {
-      var index = -1,
-          result = isArrayLike(collection) ? Array(collection.length) : [];
-
-      baseEach(collection, function(value, key, collection) {
-        result[++index] = iteratee(value, key, collection);
-      });
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.matches` which doesn't clone `source`.
-     *
-     * @private
-     * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new spec function.
-     */
-    function baseMatches(source) {
-      var matchData = getMatchData(source);
-      if (matchData.length == 1 && matchData[0][2]) {
-        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
-      }
-      return function(object) {
-        return object === source || baseIsMatch(object, source, matchData);
-      };
-    }
-
-    /**
-     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
-     *
-     * @private
-     * @param {string} path The path of the property to get.
-     * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new spec function.
-     */
-    function baseMatchesProperty(path, srcValue) {
-      if (isKey(path) && isStrictComparable(srcValue)) {
-        return matchesStrictComparable(toKey(path), srcValue);
-      }
-      return function(object) {
-        var objValue = get(object, path);
-        return (objValue === undefined && objValue === srcValue)
-          ? hasIn(object, path)
-          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
-      };
-    }
-
-    /**
-     * The base implementation of `_.merge` without support for multiple sources.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @param {number} srcIndex The index of `source`.
-     * @param {Function} [customizer] The function to customize merged values.
-     * @param {Object} [stack] Tracks traversed source values and their merged
-     *  counterparts.
-     */
-    function baseMerge(object, source, srcIndex, customizer, stack) {
-      if (object === source) {
-        return;
-      }
-      baseFor(source, function(srcValue, key) {
-        if (isObject(srcValue)) {
-          stack || (stack = new Stack);
-          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
-        }
-        else {
-          var newValue = customizer
-            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
-            : undefined;
-
-          if (newValue === undefined) {
-            newValue = srcValue;
-          }
-          assignMergeValue(object, key, newValue);
-        }
-      }, keysIn);
-    }
-
-    /**
-     * A specialized version of `baseMerge` for arrays and objects which performs
-     * deep merges and tracks traversed objects enabling objects with circular
-     * references to be merged.
-     *
-     * @private
-     * @param {Object} object The destination object.
-     * @param {Object} source The source object.
-     * @param {string} key The key of the value to merge.
-     * @param {number} srcIndex The index of `source`.
-     * @param {Function} mergeFunc The function to merge values.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @param {Object} [stack] Tracks traversed source values and their merged
-     *  counterparts.
-     */
-    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
-      var objValue = safeGet(object, key),
-          srcValue = safeGet(source, key),
-          stacked = stack.get(srcValue);
-
-      if (stacked) {
-        assignMergeValue(object, key, stacked);
-        return;
-      }
-      var newValue = customizer
-        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
-        : undefined;
-
-      var isCommon = newValue === undefined;
-
-      if (isCommon) {
-        var isArr = isArray(srcValue),
-            isBuff = !isArr && isBuffer(srcValue),
-            isTyped = !isArr && !isBuff && isTypedArray(srcValue);
-
-        newValue = srcValue;
-        if (isArr || isBuff || isTyped) {
-          if (isArray(objValue)) {
-            newValue = objValue;
-          }
-          else if (isArrayLikeObject(objValue)) {
-            newValue = copyArray(objValue);
-          }
-          else if (isBuff) {
-            isCommon = false;
-            newValue = cloneBuffer(srcValue, true);
-          }
-          else if (isTyped) {
-            isCommon = false;
-            newValue = cloneTypedArray(srcValue, true);
-          }
-          else {
-            newValue = [];
-          }
-        }
-        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
-          newValue = objValue;
-          if (isArguments(objValue)) {
-            newValue = toPlainObject(objValue);
-          }
-          else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
-            newValue = initCloneObject(srcValue);
-          }
-        }
-        else {
-          isCommon = false;
-        }
-      }
-      if (isCommon) {
-        // Recursively merge objects and arrays (susceptible to call stack limits).
-        stack.set(srcValue, newValue);
-        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
-        stack['delete'](srcValue);
-      }
-      assignMergeValue(object, key, newValue);
-    }
-
-    /**
-     * The base implementation of `_.nth` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {Array} array The array to query.
-     * @param {number} n The index of the element to return.
-     * @returns {*} Returns the nth element of `array`.
-     */
-    function baseNth(array, n) {
-      var length = array.length;
-      if (!length) {
-        return;
-      }
-      n += n < 0 ? length : 0;
-      return isIndex(n, length) ? array[n] : undefined;
-    }
-
-    /**
-     * The base implementation of `_.orderBy` without param guards.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
-     * @param {string[]} orders The sort orders of `iteratees`.
-     * @returns {Array} Returns the new sorted array.
-     */
-    function baseOrderBy(collection, iteratees, orders) {
-      var index = -1;
-      iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));
-
-      var result = baseMap(collection, function(value, key, collection) {
-        var criteria = arrayMap(iteratees, function(iteratee) {
-          return iteratee(value);
-        });
-        return { 'criteria': criteria, 'index': ++index, 'value': value };
-      });
-
-      return baseSortBy(result, function(object, other) {
-        return compareMultiple(object, other, orders);
-      });
-    }
-
-    /**
-     * The base implementation of `_.pick` without support for individual
-     * property identifiers.
-     *
-     * @private
-     * @param {Object} object The source object.
-     * @param {string[]} paths The property paths to pick.
-     * @returns {Object} Returns the new object.
-     */
-    function basePick(object, paths) {
-      return basePickBy(object, paths, function(value, path) {
-        return hasIn(object, path);
-      });
-    }
-
-    /**
-     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Object} object The source object.
-     * @param {string[]} paths The property paths to pick.
-     * @param {Function} predicate The function invoked per property.
-     * @returns {Object} Returns the new object.
-     */
-    function basePickBy(object, paths, predicate) {
-      var index = -1,
-          length = paths.length,
-          result = {};
-
-      while (++index < length) {
-        var path = paths[index],
-            value = baseGet(object, path);
-
-        if (predicate(value, path)) {
-          baseSet(result, castPath(path, object), value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * A specialized version of `baseProperty` which supports deep paths.
-     *
-     * @private
-     * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new accessor function.
-     */
-    function basePropertyDeep(path) {
-      return function(object) {
-        return baseGet(object, path);
-      };
-    }
-
-    /**
-     * The base implementation of `_.pullAllBy` without support for iteratee
-     * shorthands.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {Array} values The values to remove.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns `array`.
-     */
-    function basePullAll(array, values, iteratee, comparator) {
-      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
-          index = -1,
-          length = values.length,
-          seen = array;
-
-      if (array === values) {
-        values = copyArray(values);
-      }
-      if (iteratee) {
-        seen = arrayMap(array, baseUnary(iteratee));
-      }
-      while (++index < length) {
-        var fromIndex = 0,
-            value = values[index],
-            computed = iteratee ? iteratee(value) : value;
-
-        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
-          if (seen !== array) {
-            splice.call(seen, fromIndex, 1);
-          }
-          splice.call(array, fromIndex, 1);
-        }
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.pullAt` without support for individual
-     * indexes or capturing the removed elements.
-     *
-     * @private
-     * @param {Array} array The array to modify.
-     * @param {number[]} indexes The indexes of elements to remove.
-     * @returns {Array} Returns `array`.
-     */
-    function basePullAt(array, indexes) {
-      var length = array ? indexes.length : 0,
-          lastIndex = length - 1;
-
-      while (length--) {
-        var index = indexes[length];
-        if (length == lastIndex || index !== previous) {
-          var previous = index;
-          if (isIndex(index)) {
-            splice.call(array, index, 1);
-          } else {
-            baseUnset(array, index);
-          }
-        }
-      }
-      return array;
-    }
-
-    /**
-     * The base implementation of `_.random` without support for returning
-     * floating-point numbers.
-     *
-     * @private
-     * @param {number} lower The lower bound.
-     * @param {number} upper The upper bound.
-     * @returns {number} Returns the random number.
-     */
-    function baseRandom(lower, upper) {
-      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
-    }
-
-    /**
-     * The base implementation of `_.range` and `_.rangeRight` which doesn't
-     * coerce arguments.
-     *
-     * @private
-     * @param {number} start The start of the range.
-     * @param {number} end The end of the range.
-     * @param {number} step The value to increment or decrement by.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Array} Returns the range of numbers.
-     */
-    function baseRange(start, end, step, fromRight) {
-      var index = -1,
-          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
-          result = Array(length);
-
-      while (length--) {
-        result[fromRight ? length : ++index] = start;
-        start += step;
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.repeat` which doesn't coerce arguments.
-     *
-     * @private
-     * @param {string} string The string to repeat.
-     * @param {number} n The number of times to repeat the string.
-     * @returns {string} Returns the repeated string.
-     */
-    function baseRepeat(string, n) {
-      var result = '';
-      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
-        return result;
-      }
-      // Leverage the exponentiation by squaring algorithm for a faster repeat.
-      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
-      do {
-        if (n % 2) {
-          result += string;
-        }
-        n = nativeFloor(n / 2);
-        if (n) {
-          string += string;
-        }
-      } while (n);
-
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
-     *
-     * @private
-     * @param {Function} func The function to apply a rest parameter to.
-     * @param {number} [start=func.length-1] The start position of the rest parameter.
-     * @returns {Function} Returns the new function.
-     */
-    function baseRest(func, start) {
-      return setToString(overRest(func, start, identity), func + '');
-    }
-
-    /**
-     * The base implementation of `_.sample`.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to sample.
-     * @returns {*} Returns the random element.
-     */
-    function baseSample(collection) {
-      return arraySample(values(collection));
-    }
-
-    /**
-     * The base implementation of `_.sampleSize` without param guards.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to sample.
-     * @param {number} n The number of elements to sample.
-     * @returns {Array} Returns the random elements.
-     */
-    function baseSampleSize(collection, n) {
-      var array = values(collection);
-      return shuffleSelf(array, baseClamp(n, 0, array.length));
-    }
-
-    /**
-     * The base implementation of `_.set`.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to set.
-     * @param {*} value The value to set.
-     * @param {Function} [customizer] The function to customize path creation.
-     * @returns {Object} Returns `object`.
-     */
-    function baseSet(object, path, value, customizer) {
-      if (!isObject(object)) {
-        return object;
-      }
-      path = castPath(path, object);
-
-      var index = -1,
-          length = path.length,
-          lastIndex = length - 1,
-          nested = object;
-
-      while (nested != null && ++index < length) {
-        var key = toKey(path[index]),
-            newValue = value;
-
-        if (index != lastIndex) {
-          var objValue = nested[key];
-          newValue = customizer ? customizer(objValue, key, nested) : undefined;
-          if (newValue === undefined) {
-            newValue = isObject(objValue)
-              ? objValue
-              : (isIndex(path[index + 1]) ? [] : {});
-          }
-        }
-        assignValue(nested, key, newValue);
-        nested = nested[key];
-      }
-      return object;
-    }
-
-    /**
-     * The base implementation of `setData` without support for hot loop shorting.
-     *
-     * @private
-     * @param {Function} func The function to associate metadata with.
-     * @param {*} data The metadata.
-     * @returns {Function} Returns `func`.
-     */
-    var baseSetData = !metaMap ? identity : function(func, data) {
-      metaMap.set(func, data);
-      return func;
-    };
-
-    /**
-     * The base implementation of `setToString` without support for hot loop shorting.
-     *
-     * @private
-     * @param {Function} func The function to modify.
-     * @param {Function} string The `toString` result.
-     * @returns {Function} Returns `func`.
-     */
-    var baseSetToString = !defineProperty ? identity : function(func, string) {
-      return defineProperty(func, 'toString', {
-        'configurable': true,
-        'enumerable': false,
-        'value': constant(string),
-        'writable': true
-      });
-    };
-
-    /**
-     * The base implementation of `_.shuffle`.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to shuffle.
-     * @returns {Array} Returns the new shuffled array.
-     */
-    function baseShuffle(collection) {
-      return shuffleSelf(values(collection));
-    }
-
-    /**
-     * The base implementation of `_.slice` without an iteratee call guard.
-     *
-     * @private
-     * @param {Array} array The array to slice.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function baseSlice(array, start, end) {
-      var index = -1,
-          length = array.length;
-
-      if (start < 0) {
-        start = -start > length ? 0 : (length + start);
-      }
-      end = end > length ? length : end;
-      if (end < 0) {
-        end += length;
-      }
-      length = start > end ? 0 : ((end - start) >>> 0);
-      start >>>= 0;
-
-      var result = Array(length);
-      while (++index < length) {
-        result[index] = array[index + start];
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.some` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} predicate The function invoked per iteration.
-     * @returns {boolean} Returns `true` if any element passes the predicate check,
-     *  else `false`.
-     */
-    function baseSome(collection, predicate) {
-      var result;
-
-      baseEach(collection, function(value, index, collection) {
-        result = predicate(value, index, collection);
-        return !result;
-      });
-      return !!result;
-    }
-
-    /**
-     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
-     * performs a binary search of `array` to determine the index at which `value`
-     * should be inserted into `array` in order to maintain its sort order.
-     *
-     * @private
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {boolean} [retHighest] Specify returning the highest qualified index.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     */
-    function baseSortedIndex(array, value, retHighest) {
-      var low = 0,
-          high = array == null ? low : array.length;
-
-      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
-        while (low < high) {
-          var mid = (low + high) >>> 1,
-              computed = array[mid];
-
-          if (computed !== null && !isSymbol(computed) &&
-              (retHighest ? (computed <= value) : (computed < value))) {
-            low = mid + 1;
-          } else {
-            high = mid;
-          }
-        }
-        return high;
-      }
-      return baseSortedIndexBy(array, value, identity, retHighest);
-    }
-
-    /**
-     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
-     * which invokes `iteratee` for `value` and each element of `array` to compute
-     * their sort ranking. The iteratee is invoked with one argument; (value).
-     *
-     * @private
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function} iteratee The iteratee invoked per element.
-     * @param {boolean} [retHighest] Specify returning the highest qualified index.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     */
-    function baseSortedIndexBy(array, value, iteratee, retHighest) {
-      value = iteratee(value);
-
-      var low = 0,
-          high = array == null ? 0 : array.length,
-          valIsNaN = value !== value,
-          valIsNull = value === null,
-          valIsSymbol = isSymbol(value),
-          valIsUndefined = value === undefined;
-
-      while (low < high) {
-        var mid = nativeFloor((low + high) / 2),
-            computed = iteratee(array[mid]),
-            othIsDefined = computed !== undefined,
-            othIsNull = computed === null,
-            othIsReflexive = computed === computed,
-            othIsSymbol = isSymbol(computed);
-
-        if (valIsNaN) {
-          var setLow = retHighest || othIsReflexive;
-        } else if (valIsUndefined) {
-          setLow = othIsReflexive && (retHighest || othIsDefined);
-        } else if (valIsNull) {
-          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
-        } else if (valIsSymbol) {
-          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
-        } else if (othIsNull || othIsSymbol) {
-          setLow = false;
-        } else {
-          setLow = retHighest ? (computed <= value) : (computed < value);
-        }
-        if (setLow) {
-          low = mid + 1;
-        } else {
-          high = mid;
-        }
-      }
-      return nativeMin(high, MAX_ARRAY_INDEX);
-    }
-
-    /**
-     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
-     * support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @returns {Array} Returns the new duplicate free array.
-     */
-    function baseSortedUniq(array, iteratee) {
-      var index = -1,
-          length = array.length,
-          resIndex = 0,
-          result = [];
-
-      while (++index < length) {
-        var value = array[index],
-            computed = iteratee ? iteratee(value) : value;
-
-        if (!index || !eq(computed, seen)) {
-          var seen = computed;
-          result[resIndex++] = value === 0 ? 0 : value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.toNumber` which doesn't ensure correct
-     * conversions of binary, hexadecimal, or octal string values.
-     *
-     * @private
-     * @param {*} value The value to process.
-     * @returns {number} Returns the number.
-     */
-    function baseToNumber(value) {
-      if (typeof value == 'number') {
-        return value;
-      }
-      if (isSymbol(value)) {
-        return NAN;
-      }
-      return +value;
-    }
-
-    /**
-     * The base implementation of `_.toString` which doesn't convert nullish
-     * values to empty strings.
-     *
-     * @private
-     * @param {*} value The value to process.
-     * @returns {string} Returns the string.
-     */
-    function baseToString(value) {
-      // Exit early for strings to avoid a performance hit in some environments.
-      if (typeof value == 'string') {
-        return value;
-      }
-      if (isArray(value)) {
-        // Recursively convert values (susceptible to call stack limits).
-        return arrayMap(value, baseToString) + '';
-      }
-      if (isSymbol(value)) {
-        return symbolToString ? symbolToString.call(value) : '';
-      }
-      var result = (value + '');
-      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
-    }
-
-    /**
-     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new duplicate free array.
-     */
-    function baseUniq(array, iteratee, comparator) {
-      var index = -1,
-          includes = arrayIncludes,
-          length = array.length,
-          isCommon = true,
-          result = [],
-          seen = result;
-
-      if (comparator) {
-        isCommon = false;
-        includes = arrayIncludesWith;
-      }
-      else if (length >= LARGE_ARRAY_SIZE) {
-        var set = iteratee ? null : createSet(array);
-        if (set) {
-          return setToArray(set);
-        }
-        isCommon = false;
-        includes = cacheHas;
-        seen = new SetCache;
-      }
-      else {
-        seen = iteratee ? [] : result;
-      }
-      outer:
-      while (++index < length) {
-        var value = array[index],
-            computed = iteratee ? iteratee(value) : value;
-
-        value = (comparator || value !== 0) ? value : 0;
-        if (isCommon && computed === computed) {
-          var seenIndex = seen.length;
-          while (seenIndex--) {
-            if (seen[seenIndex] === computed) {
-              continue outer;
-            }
-          }
-          if (iteratee) {
-            seen.push(computed);
-          }
-          result.push(value);
-        }
-        else if (!includes(seen, computed, comparator)) {
-          if (seen !== result) {
-            seen.push(computed);
-          }
-          result.push(value);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * The base implementation of `_.unset`.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The property path to unset.
-     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
-     */
-    function baseUnset(object, path) {
-      path = castPath(path, object);
-      object = parent(object, path);
-      return object == null || delete object[toKey(last(path))];
-    }
-
-    /**
-     * The base implementation of `_.update`.
-     *
-     * @private
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to update.
-     * @param {Function} updater The function to produce the updated value.
-     * @param {Function} [customizer] The function to customize path creation.
-     * @returns {Object} Returns `object`.
-     */
-    function baseUpdate(object, path, updater, customizer) {
-      return baseSet(object, path, updater(baseGet(object, path)), customizer);
-    }
-
-    /**
-     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
-     * without support for iteratee shorthands.
-     *
-     * @private
-     * @param {Array} array The array to query.
-     * @param {Function} predicate The function invoked per iteration.
-     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function baseWhile(array, predicate, isDrop, fromRight) {
-      var length = array.length,
-          index = fromRight ? length : -1;
-
-      while ((fromRight ? index-- : ++index < length) &&
-        predicate(array[index], index, array)) {}
-
-      return isDrop
-        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
-        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
-    }
-
-    /**
-     * The base implementation of `wrapperValue` which returns the result of
-     * performing a sequence of actions on the unwrapped `value`, where each
-     * successive action is supplied the return value of the previous.
-     *
-     * @private
-     * @param {*} value The unwrapped value.
-     * @param {Array} actions Actions to perform to resolve the unwrapped value.
-     * @returns {*} Returns the resolved value.
-     */
-    function baseWrapperValue(value, actions) {
-      var result = value;
-      if (result instanceof LazyWrapper) {
-        result = result.value();
-      }
-      return arrayReduce(actions, function(result, action) {
-        return action.func.apply(action.thisArg, arrayPush([result], action.args));
-      }, result);
-    }
-
-    /**
-     * The base implementation of methods like `_.xor`, without support for
-     * iteratee shorthands, that accepts an array of arrays to inspect.
-     *
-     * @private
-     * @param {Array} arrays The arrays to inspect.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of values.
-     */
-    function baseXor(arrays, iteratee, comparator) {
-      var length = arrays.length;
-      if (length < 2) {
-        return length ? baseUniq(arrays[0]) : [];
-      }
-      var index = -1,
-          result = Array(length);
-
-      while (++index < length) {
-        var array = arrays[index],
-            othIndex = -1;
-
-        while (++othIndex < length) {
-          if (othIndex != index) {
-            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
-          }
-        }
-      }
-      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
-    }
-
-    /**
-     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
-     *
-     * @private
-     * @param {Array} props The property identifiers.
-     * @param {Array} values The property values.
-     * @param {Function} assignFunc The function to assign values.
-     * @returns {Object} Returns the new object.
-     */
-    function baseZipObject(props, values, assignFunc) {
-      var index = -1,
-          length = props.length,
-          valsLength = values.length,
-          result = {};
-
-      while (++index < length) {
-        var value = index < valsLength ? values[index] : undefined;
-        assignFunc(result, props[index], value);
-      }
-      return result;
-    }
-
-    /**
-     * Casts `value` to an empty array if it's not an array like object.
-     *
-     * @private
-     * @param {*} value The value to inspect.
-     * @returns {Array|Object} Returns the cast array-like object.
-     */
-    function castArrayLikeObject(value) {
-      return isArrayLikeObject(value) ? value : [];
-    }
-
-    /**
-     * Casts `value` to `identity` if it's not a function.
-     *
-     * @private
-     * @param {*} value The value to inspect.
-     * @returns {Function} Returns cast function.
-     */
-    function castFunction(value) {
-      return typeof value == 'function' ? value : identity;
-    }
-
-    /**
-     * Casts `value` to a path array if it's not one.
-     *
-     * @private
-     * @param {*} value The value to inspect.
-     * @param {Object} [object] The object to query keys on.
-     * @returns {Array} Returns the cast property path array.
-     */
-    function castPath(value, object) {
-      if (isArray(value)) {
-        return value;
-      }
-      return isKey(value, object) ? [value] : stringToPath(toString(value));
-    }
-
-    /**
-     * A `baseRest` alias which can be replaced with `identity` by module
-     * replacement plugins.
-     *
-     * @private
-     * @type {Function}
-     * @param {Function} func The function to apply a rest parameter to.
-     * @returns {Function} Returns the new function.
-     */
-    var castRest = baseRest;
-
-    /**
-     * Casts `array` to a slice if it's needed.
-     *
-     * @private
-     * @param {Array} array The array to inspect.
-     * @param {number} start The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns the cast slice.
-     */
-    function castSlice(array, start, end) {
-      var length = array.length;
-      end = end === undefined ? length : end;
-      return (!start && end >= length) ? array : baseSlice(array, start, end);
-    }
-
-    /**
-     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
-     *
-     * @private
-     * @param {number|Object} id The timer id or timeout object of the timer to clear.
-     */
-    var clearTimeout = ctxClearTimeout || function(id) {
-      return root.clearTimeout(id);
-    };
-
-    /**
-     * Creates a clone of  `buffer`.
-     *
-     * @private
-     * @param {Buffer} buffer The buffer to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @returns {Buffer} Returns the cloned buffer.
-     */
-    function cloneBuffer(buffer, isDeep) {
-      if (isDeep) {
-        return buffer.slice();
-      }
-      var length = buffer.length,
-          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
-
-      buffer.copy(result);
-      return result;
-    }
-
-    /**
-     * Creates a clone of `arrayBuffer`.
-     *
-     * @private
-     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
-     * @returns {ArrayBuffer} Returns the cloned array buffer.
-     */
-    function cloneArrayBuffer(arrayBuffer) {
-      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
-      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
-      return result;
-    }
-
-    /**
-     * Creates a clone of `dataView`.
-     *
-     * @private
-     * @param {Object} dataView The data view to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @returns {Object} Returns the cloned data view.
-     */
-    function cloneDataView(dataView, isDeep) {
-      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
-      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
-    }
-
-    /**
-     * Creates a clone of `regexp`.
-     *
-     * @private
-     * @param {Object} regexp The regexp to clone.
-     * @returns {Object} Returns the cloned regexp.
-     */
-    function cloneRegExp(regexp) {
-      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
-      result.lastIndex = regexp.lastIndex;
-      return result;
-    }
-
-    /**
-     * Creates a clone of the `symbol` object.
-     *
-     * @private
-     * @param {Object} symbol The symbol object to clone.
-     * @returns {Object} Returns the cloned symbol object.
-     */
-    function cloneSymbol(symbol) {
-      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
-    }
-
-    /**
-     * Creates a clone of `typedArray`.
-     *
-     * @private
-     * @param {Object} typedArray The typed array to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @returns {Object} Returns the cloned typed array.
-     */
-    function cloneTypedArray(typedArray, isDeep) {
-      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
-      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
-    }
-
-    /**
-     * Compares values to sort them in ascending order.
-     *
-     * @private
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {number} Returns the sort order indicator for `value`.
-     */
-    function compareAscending(value, other) {
-      if (value !== other) {
-        var valIsDefined = value !== undefined,
-            valIsNull = value === null,
-            valIsReflexive = value === value,
-            valIsSymbol = isSymbol(value);
-
-        var othIsDefined = other !== undefined,
-            othIsNull = other === null,
-            othIsReflexive = other === other,
-            othIsSymbol = isSymbol(other);
-
-        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
-            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
-            (valIsNull && othIsDefined && othIsReflexive) ||
-            (!valIsDefined && othIsReflexive) ||
-            !valIsReflexive) {
-          return 1;
-        }
-        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
-            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
-            (othIsNull && valIsDefined && valIsReflexive) ||
-            (!othIsDefined && valIsReflexive) ||
-            !othIsReflexive) {
-          return -1;
-        }
-      }
-      return 0;
-    }
-
-    /**
-     * Used by `_.orderBy` to compare multiple properties of a value to another
-     * and stable sort them.
-     *
-     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
-     * specify an order of "desc" for descending or "asc" for ascending sort order
-     * of corresponding values.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {boolean[]|string[]} orders The order to sort by for each property.
-     * @returns {number} Returns the sort order indicator for `object`.
-     */
-    function compareMultiple(object, other, orders) {
-      var index = -1,
-          objCriteria = object.criteria,
-          othCriteria = other.criteria,
-          length = objCriteria.length,
-          ordersLength = orders.length;
-
-      while (++index < length) {
-        var result = compareAscending(objCriteria[index], othCriteria[index]);
-        if (result) {
-          if (index >= ordersLength) {
-            return result;
-          }
-          var order = orders[index];
-          return result * (order == 'desc' ? -1 : 1);
-        }
-      }
-      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
-      // that causes it, under certain circumstances, to provide the same value for
-      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
-      // for more details.
-      //
-      // This also ensures a stable sort in V8 and other engines.
-      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
-      return object.index - other.index;
-    }
-
-    /**
-     * Creates an array that is the composition of partially applied arguments,
-     * placeholders, and provided arguments into a single array of arguments.
-     *
-     * @private
-     * @param {Array} args The provided arguments.
-     * @param {Array} partials The arguments to prepend to those provided.
-     * @param {Array} holders The `partials` placeholder indexes.
-     * @params {boolean} [isCurried] Specify composing for a curried function.
-     * @returns {Array} Returns the new array of composed arguments.
-     */
-    function composeArgs(args, partials, holders, isCurried) {
-      var argsIndex = -1,
-          argsLength = args.length,
-          holdersLength = holders.length,
-          leftIndex = -1,
-          leftLength = partials.length,
-          rangeLength = nativeMax(argsLength - holdersLength, 0),
-          result = Array(leftLength + rangeLength),
-          isUncurried = !isCurried;
-
-      while (++leftIndex < leftLength) {
-        result[leftIndex] = partials[leftIndex];
-      }
-      while (++argsIndex < holdersLength) {
-        if (isUncurried || argsIndex < argsLength) {
-          result[holders[argsIndex]] = args[argsIndex];
-        }
-      }
-      while (rangeLength--) {
-        result[leftIndex++] = args[argsIndex++];
-      }
-      return result;
-    }
-
-    /**
-     * This function is like `composeArgs` except that the arguments composition
-     * is tailored for `_.partialRight`.
-     *
-     * @private
-     * @param {Array} args The provided arguments.
-     * @param {Array} partials The arguments to append to those provided.
-     * @param {Array} holders The `partials` placeholder indexes.
-     * @params {boolean} [isCurried] Specify composing for a curried function.
-     * @returns {Array} Returns the new array of composed arguments.
-     */
-    function composeArgsRight(args, partials, holders, isCurried) {
-      var argsIndex = -1,
-          argsLength = args.length,
-          holdersIndex = -1,
-          holdersLength = holders.length,
-          rightIndex = -1,
-          rightLength = partials.length,
-          rangeLength = nativeMax(argsLength - holdersLength, 0),
-          result = Array(rangeLength + rightLength),
-          isUncurried = !isCurried;
-
-      while (++argsIndex < rangeLength) {
-        result[argsIndex] = args[argsIndex];
-      }
-      var offset = argsIndex;
-      while (++rightIndex < rightLength) {
-        result[offset + rightIndex] = partials[rightIndex];
-      }
-      while (++holdersIndex < holdersLength) {
-        if (isUncurried || argsIndex < argsLength) {
-          result[offset + holders[holdersIndex]] = args[argsIndex++];
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Copies the values of `source` to `array`.
-     *
-     * @private
-     * @param {Array} source The array to copy values from.
-     * @param {Array} [array=[]] The array to copy values to.
-     * @returns {Array} Returns `array`.
-     */
-    function copyArray(source, array) {
-      var index = -1,
-          length = source.length;
-
-      array || (array = Array(length));
-      while (++index < length) {
-        array[index] = source[index];
-      }
-      return array;
-    }
-
-    /**
-     * Copies properties of `source` to `object`.
-     *
-     * @private
-     * @param {Object} source The object to copy properties from.
-     * @param {Array} props The property identifiers to copy.
-     * @param {Object} [object={}] The object to copy properties to.
-     * @param {Function} [customizer] The function to customize copied values.
-     * @returns {Object} Returns `object`.
-     */
-    function copyObject(source, props, object, customizer) {
-      var isNew = !object;
-      object || (object = {});
-
-      var index = -1,
-          length = props.length;
-
-      while (++index < length) {
-        var key = props[index];
-
-        var newValue = customizer
-          ? customizer(object[key], source[key], key, object, source)
-          : undefined;
-
-        if (newValue === undefined) {
-          newValue = source[key];
-        }
-        if (isNew) {
-          baseAssignValue(object, key, newValue);
-        } else {
-          assignValue(object, key, newValue);
-        }
-      }
-      return object;
-    }
-
-    /**
-     * Copies own symbols of `source` to `object`.
-     *
-     * @private
-     * @param {Object} source The object to copy symbols from.
-     * @param {Object} [object={}] The object to copy symbols to.
-     * @returns {Object} Returns `object`.
-     */
-    function copySymbols(source, object) {
-      return copyObject(source, getSymbols(source), object);
-    }
-
-    /**
-     * Copies own and inherited symbols of `source` to `object`.
-     *
-     * @private
-     * @param {Object} source The object to copy symbols from.
-     * @param {Object} [object={}] The object to copy symbols to.
-     * @returns {Object} Returns `object`.
-     */
-    function copySymbolsIn(source, object) {
-      return copyObject(source, getSymbolsIn(source), object);
-    }
-
-    /**
-     * Creates a function like `_.groupBy`.
-     *
-     * @private
-     * @param {Function} setter The function to set accumulator values.
-     * @param {Function} [initializer] The accumulator object initializer.
-     * @returns {Function} Returns the new aggregator function.
-     */
-    function createAggregator(setter, initializer) {
-      return function(collection, iteratee) {
-        var func = isArray(collection) ? arrayAggregator : baseAggregator,
-            accumulator = initializer ? initializer() : {};
-
-        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
-      };
-    }
-
-    /**
-     * Creates a function like `_.assign`.
-     *
-     * @private
-     * @param {Function} assigner The function to assign values.
-     * @returns {Function} Returns the new assigner function.
-     */
-    function createAssigner(assigner) {
-      return baseRest(function(object, sources) {
-        var index = -1,
-            length = sources.length,
-            customizer = length > 1 ? sources[length - 1] : undefined,
-            guard = length > 2 ? sources[2] : undefined;
-
-        customizer = (assigner.length > 3 && typeof customizer == 'function')
-          ? (length--, customizer)
-          : undefined;
-
-        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-          customizer = length < 3 ? undefined : customizer;
-          length = 1;
-        }
-        object = Object(object);
-        while (++index < length) {
-          var source = sources[index];
-          if (source) {
-            assigner(object, source, index, customizer);
-          }
-        }
-        return object;
-      });
-    }
-
-    /**
-     * Creates a `baseEach` or `baseEachRight` function.
-     *
-     * @private
-     * @param {Function} eachFunc The function to iterate over a collection.
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new base function.
-     */
-    function createBaseEach(eachFunc, fromRight) {
-      return function(collection, iteratee) {
-        if (collection == null) {
-          return collection;
-        }
-        if (!isArrayLike(collection)) {
-          return eachFunc(collection, iteratee);
-        }
-        var length = collection.length,
-            index = fromRight ? length : -1,
-            iterable = Object(collection);
-
-        while ((fromRight ? index-- : ++index < length)) {
-          if (iteratee(iterable[index], index, iterable) === false) {
-            break;
-          }
-        }
-        return collection;
-      };
-    }
-
-    /**
-     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new base function.
-     */
-    function createBaseFor(fromRight) {
-      return function(object, iteratee, keysFunc) {
-        var index = -1,
-            iterable = Object(object),
-            props = keysFunc(object),
-            length = props.length;
-
-        while (length--) {
-          var key = props[fromRight ? length : ++index];
-          if (iteratee(iterable[key], key, iterable) === false) {
-            break;
-          }
-        }
-        return object;
-      };
-    }
-
-    /**
-     * Creates a function that wraps `func` to invoke it with the optional `this`
-     * binding of `thisArg`.
-     *
-     * @private
-     * @param {Function} func The function to wrap.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createBind(func, bitmask, thisArg) {
-      var isBind = bitmask & WRAP_BIND_FLAG,
-          Ctor = createCtor(func);
-
-      function wrapper() {
-        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-        return fn.apply(isBind ? thisArg : this, arguments);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a function like `_.lowerFirst`.
-     *
-     * @private
-     * @param {string} methodName The name of the `String` case method to use.
-     * @returns {Function} Returns the new case function.
-     */
-    function createCaseFirst(methodName) {
-      return function(string) {
-        string = toString(string);
-
-        var strSymbols = hasUnicode(string)
-          ? stringToArray(string)
-          : undefined;
-
-        var chr = strSymbols
-          ? strSymbols[0]
-          : string.charAt(0);
-
-        var trailing = strSymbols
-          ? castSlice(strSymbols, 1).join('')
-          : string.slice(1);
-
-        return chr[methodName]() + trailing;
-      };
-    }
-
-    /**
-     * Creates a function like `_.camelCase`.
-     *
-     * @private
-     * @param {Function} callback The function to combine each word.
-     * @returns {Function} Returns the new compounder function.
-     */
-    function createCompounder(callback) {
-      return function(string) {
-        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
-      };
-    }
-
-    /**
-     * Creates a function that produces an instance of `Ctor` regardless of
-     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
-     *
-     * @private
-     * @param {Function} Ctor The constructor to wrap.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createCtor(Ctor) {
-      return function() {
-        // Use a `switch` statement to work with class constructors. See
-        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
-        // for more details.
-        var args = arguments;
-        switch (args.length) {
-          case 0: return new Ctor;
-          case 1: return new Ctor(args[0]);
-          case 2: return new Ctor(args[0], args[1]);
-          case 3: return new Ctor(args[0], args[1], args[2]);
-          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
-          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
-          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
-          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
-        }
-        var thisBinding = baseCreate(Ctor.prototype),
-            result = Ctor.apply(thisBinding, args);
-
-        // Mimic the constructor's `return` behavior.
-        // See https://es5.github.io/#x13.2.2 for more details.
-        return isObject(result) ? result : thisBinding;
-      };
-    }
-
-    /**
-     * Creates a function that wraps `func` to enable currying.
-     *
-     * @private
-     * @param {Function} func The function to wrap.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @param {number} arity The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createCurry(func, bitmask, arity) {
-      var Ctor = createCtor(func);
-
-      function wrapper() {
-        var length = arguments.length,
-            args = Array(length),
-            index = length,
-            placeholder = getHolder(wrapper);
-
-        while (index--) {
-          args[index] = arguments[index];
-        }
-        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
-          ? []
-          : replaceHolders(args, placeholder);
-
-        length -= holders.length;
-        if (length < arity) {
-          return createRecurry(
-            func, bitmask, createHybrid, wrapper.placeholder, undefined,
-            args, holders, undefined, undefined, arity - length);
-        }
-        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-        return apply(fn, this, args);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a `_.find` or `_.findLast` function.
-     *
-     * @private
-     * @param {Function} findIndexFunc The function to find the collection index.
-     * @returns {Function} Returns the new find function.
-     */
-    function createFind(findIndexFunc) {
-      return function(collection, predicate, fromIndex) {
-        var iterable = Object(collection);
-        if (!isArrayLike(collection)) {
-          var iteratee = getIteratee(predicate, 3);
-          collection = keys(collection);
-          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
-        }
-        var index = findIndexFunc(collection, predicate, fromIndex);
-        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
-      };
-    }
-
-    /**
-     * Creates a `_.flow` or `_.flowRight` function.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new flow function.
-     */
-    function createFlow(fromRight) {
-      return flatRest(function(funcs) {
-        var length = funcs.length,
-            index = length,
-            prereq = LodashWrapper.prototype.thru;
-
-        if (fromRight) {
-          funcs.reverse();
-        }
-        while (index--) {
-          var func = funcs[index];
-          if (typeof func != 'function') {
-            throw new TypeError(FUNC_ERROR_TEXT);
-          }
-          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
-            var wrapper = new LodashWrapper([], true);
-          }
-        }
-        index = wrapper ? index : length;
-        while (++index < length) {
-          func = funcs[index];
-
-          var funcName = getFuncName(func),
-              data = funcName == 'wrapper' ? getData(func) : undefined;
-
-          if (data && isLaziable(data[0]) &&
-                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
-                !data[4].length && data[9] == 1
-              ) {
-            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
-          } else {
-            wrapper = (func.length == 1 && isLaziable(func))
-              ? wrapper[funcName]()
-              : wrapper.thru(func);
-          }
-        }
-        return function() {
-          var args = arguments,
-              value = args[0];
-
-          if (wrapper && args.length == 1 && isArray(value)) {
-            return wrapper.plant(value).value();
-          }
-          var index = 0,
-              result = length ? funcs[index].apply(this, args) : value;
-
-          while (++index < length) {
-            result = funcs[index].call(this, result);
-          }
-          return result;
-        };
-      });
-    }
-
-    /**
-     * Creates a function that wraps `func` to invoke it with optional `this`
-     * binding of `thisArg`, partial application, and currying.
-     *
-     * @private
-     * @param {Function|string} func The function or method name to wrap.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {Array} [partials] The arguments to prepend to those provided to
-     *  the new function.
-     * @param {Array} [holders] The `partials` placeholder indexes.
-     * @param {Array} [partialsRight] The arguments to append to those provided
-     *  to the new function.
-     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
-     * @param {Array} [argPos] The argument positions of the new function.
-     * @param {number} [ary] The arity cap of `func`.
-     * @param {number} [arity] The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
-      var isAry = bitmask & WRAP_ARY_FLAG,
-          isBind = bitmask & WRAP_BIND_FLAG,
-          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
-          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
-          isFlip = bitmask & WRAP_FLIP_FLAG,
-          Ctor = isBindKey ? undefined : createCtor(func);
-
-      function wrapper() {
-        var length = arguments.length,
-            args = Array(length),
-            index = length;
-
-        while (index--) {
-          args[index] = arguments[index];
-        }
-        if (isCurried) {
-          var placeholder = getHolder(wrapper),
-              holdersCount = countHolders(args, placeholder);
-        }
-        if (partials) {
-          args = composeArgs(args, partials, holders, isCurried);
-        }
-        if (partialsRight) {
-          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
-        }
-        length -= holdersCount;
-        if (isCurried && length < arity) {
-          var newHolders = replaceHolders(args, placeholder);
-          return createRecurry(
-            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
-            args, newHolders, argPos, ary, arity - length
-          );
-        }
-        var thisBinding = isBind ? thisArg : this,
-            fn = isBindKey ? thisBinding[func] : func;
-
-        length = args.length;
-        if (argPos) {
-          args = reorder(args, argPos);
-        } else if (isFlip && length > 1) {
-          args.reverse();
-        }
-        if (isAry && ary < length) {
-          args.length = ary;
-        }
-        if (this && this !== root && this instanceof wrapper) {
-          fn = Ctor || createCtor(fn);
-        }
-        return fn.apply(thisBinding, args);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a function like `_.invertBy`.
-     *
-     * @private
-     * @param {Function} setter The function to set accumulator values.
-     * @param {Function} toIteratee The function to resolve iteratees.
-     * @returns {Function} Returns the new inverter function.
-     */
-    function createInverter(setter, toIteratee) {
-      return function(object, iteratee) {
-        return baseInverter(object, setter, toIteratee(iteratee), {});
-      };
-    }
-
-    /**
-     * Creates a function that performs a mathematical operation on two values.
-     *
-     * @private
-     * @param {Function} operator The function to perform the operation.
-     * @param {number} [defaultValue] The value used for `undefined` arguments.
-     * @returns {Function} Returns the new mathematical operation function.
-     */
-    function createMathOperation(operator, defaultValue) {
-      return function(value, other) {
-        var result;
-        if (value === undefined && other === undefined) {
-          return defaultValue;
-        }
-        if (value !== undefined) {
-          result = value;
-        }
-        if (other !== undefined) {
-          if (result === undefined) {
-            return other;
-          }
-          if (typeof value == 'string' || typeof other == 'string') {
-            value = baseToString(value);
-            other = baseToString(other);
-          } else {
-            value = baseToNumber(value);
-            other = baseToNumber(other);
-          }
-          result = operator(value, other);
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Creates a function like `_.over`.
-     *
-     * @private
-     * @param {Function} arrayFunc The function to iterate over iteratees.
-     * @returns {Function} Returns the new over function.
-     */
-    function createOver(arrayFunc) {
-      return flatRest(function(iteratees) {
-        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
-        return baseRest(function(args) {
-          var thisArg = this;
-          return arrayFunc(iteratees, function(iteratee) {
-            return apply(iteratee, thisArg, args);
-          });
-        });
-      });
-    }
-
-    /**
-     * Creates the padding for `string` based on `length`. The `chars` string
-     * is truncated if the number of characters exceeds `length`.
-     *
-     * @private
-     * @param {number} length The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padding for `string`.
-     */
-    function createPadding(length, chars) {
-      chars = chars === undefined ? ' ' : baseToString(chars);
-
-      var charsLength = chars.length;
-      if (charsLength < 2) {
-        return charsLength ? baseRepeat(chars, length) : chars;
-      }
-      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
-      return hasUnicode(chars)
-        ? castSlice(stringToArray(result), 0, length).join('')
-        : result.slice(0, length);
-    }
-
-    /**
-     * Creates a function that wraps `func` to invoke it with the `this` binding
-     * of `thisArg` and `partials` prepended to the arguments it receives.
-     *
-     * @private
-     * @param {Function} func The function to wrap.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @param {*} thisArg The `this` binding of `func`.
-     * @param {Array} partials The arguments to prepend to those provided to
-     *  the new function.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createPartial(func, bitmask, thisArg, partials) {
-      var isBind = bitmask & WRAP_BIND_FLAG,
-          Ctor = createCtor(func);
-
-      function wrapper() {
-        var argsIndex = -1,
-            argsLength = arguments.length,
-            leftIndex = -1,
-            leftLength = partials.length,
-            args = Array(leftLength + argsLength),
-            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
-
-        while (++leftIndex < leftLength) {
-          args[leftIndex] = partials[leftIndex];
-        }
-        while (argsLength--) {
-          args[leftIndex++] = arguments[++argsIndex];
-        }
-        return apply(fn, isBind ? thisArg : this, args);
-      }
-      return wrapper;
-    }
-
-    /**
-     * Creates a `_.range` or `_.rangeRight` function.
-     *
-     * @private
-     * @param {boolean} [fromRight] Specify iterating from right to left.
-     * @returns {Function} Returns the new range function.
-     */
-    function createRange(fromRight) {
-      return function(start, end, step) {
-        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
-          end = step = undefined;
-        }
-        // Ensure the sign of `-0` is preserved.
-        start = toFinite(start);
-        if (end === undefined) {
-          end = start;
-          start = 0;
-        } else {
-          end = toFinite(end);
-        }
-        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
-        return baseRange(start, end, step, fromRight);
-      };
-    }
-
-    /**
-     * Creates a function that performs a relational operation on two values.
-     *
-     * @private
-     * @param {Function} operator The function to perform the operation.
-     * @returns {Function} Returns the new relational operation function.
-     */
-    function createRelationalOperation(operator) {
-      return function(value, other) {
-        if (!(typeof value == 'string' && typeof other == 'string')) {
-          value = toNumber(value);
-          other = toNumber(other);
-        }
-        return operator(value, other);
-      };
-    }
-
-    /**
-     * Creates a function that wraps `func` to continue currying.
-     *
-     * @private
-     * @param {Function} func The function to wrap.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @param {Function} wrapFunc The function to create the `func` wrapper.
-     * @param {*} placeholder The placeholder value.
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {Array} [partials] The arguments to prepend to those provided to
-     *  the new function.
-     * @param {Array} [holders] The `partials` placeholder indexes.
-     * @param {Array} [argPos] The argument positions of the new function.
-     * @param {number} [ary] The arity cap of `func`.
-     * @param {number} [arity] The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
-      var isCurry = bitmask & WRAP_CURRY_FLAG,
-          newHolders = isCurry ? holders : undefined,
-          newHoldersRight = isCurry ? undefined : holders,
-          newPartials = isCurry ? partials : undefined,
-          newPartialsRight = isCurry ? undefined : partials;
-
-      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
-      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);
-
-      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
-        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
-      }
-      var newData = [
-        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
-        newHoldersRight, argPos, ary, arity
-      ];
-
-      var result = wrapFunc.apply(undefined, newData);
-      if (isLaziable(func)) {
-        setData(result, newData);
-      }
-      result.placeholder = placeholder;
-      return setWrapToString(result, func, bitmask);
-    }
-
-    /**
-     * Creates a function like `_.round`.
-     *
-     * @private
-     * @param {string} methodName The name of the `Math` method to use when rounding.
-     * @returns {Function} Returns the new round function.
-     */
-    function createRound(methodName) {
-      var func = Math[methodName];
-      return function(number, precision) {
-        number = toNumber(number);
-        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
-        if (precision) {
-          // Shift with exponential notation to avoid floating-point issues.
-          // See [MDN](https://mdn.io/round#Examples) for more details.
-          var pair = (toString(number) + 'e').split('e'),
-              value = func(pair[0] + 'e' + (+pair[1] + precision));
-
-          pair = (toString(value) + 'e').split('e');
-          return +(pair[0] + 'e' + (+pair[1] - precision));
-        }
-        return func(number);
-      };
-    }
-
-    /**
-     * Creates a set object of `values`.
-     *
-     * @private
-     * @param {Array} values The values to add to the set.
-     * @returns {Object} Returns the new set.
-     */
-    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
-      return new Set(values);
-    };
-
-    /**
-     * Creates a `_.toPairs` or `_.toPairsIn` function.
-     *
-     * @private
-     * @param {Function} keysFunc The function to get the keys of a given object.
-     * @returns {Function} Returns the new pairs function.
-     */
-    function createToPairs(keysFunc) {
-      return function(object) {
-        var tag = getTag(object);
-        if (tag == mapTag) {
-          return mapToArray(object);
-        }
-        if (tag == setTag) {
-          return setToPairs(object);
-        }
-        return baseToPairs(object, keysFunc(object));
-      };
-    }
-
-    /**
-     * Creates a function that either curries or invokes `func` with optional
-     * `this` binding and partially applied arguments.
-     *
-     * @private
-     * @param {Function|string} func The function or method name to wrap.
-     * @param {number} bitmask The bitmask flags.
-     *    1 - `_.bind`
-     *    2 - `_.bindKey`
-     *    4 - `_.curry` or `_.curryRight` of a bound function
-     *    8 - `_.curry`
-     *   16 - `_.curryRight`
-     *   32 - `_.partial`
-     *   64 - `_.partialRight`
-     *  128 - `_.rearg`
-     *  256 - `_.ary`
-     *  512 - `_.flip`
-     * @param {*} [thisArg] The `this` binding of `func`.
-     * @param {Array} [partials] The arguments to be partially applied.
-     * @param {Array} [holders] The `partials` placeholder indexes.
-     * @param {Array} [argPos] The argument positions of the new function.
-     * @param {number} [ary] The arity cap of `func`.
-     * @param {number} [arity] The arity of `func`.
-     * @returns {Function} Returns the new wrapped function.
-     */
-    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
-      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
-      if (!isBindKey && typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      var length = partials ? partials.length : 0;
-      if (!length) {
-        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
-        partials = holders = undefined;
-      }
-      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
-      arity = arity === undefined ? arity : toInteger(arity);
-      length -= holders ? holders.length : 0;
-
-      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
-        var partialsRight = partials,
-            holdersRight = holders;
-
-        partials = holders = undefined;
-      }
-      var data = isBindKey ? undefined : getData(func);
-
-      var newData = [
-        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
-        argPos, ary, arity
-      ];
-
-      if (data) {
-        mergeData(newData, data);
-      }
-      func = newData[0];
-      bitmask = newData[1];
-      thisArg = newData[2];
-      partials = newData[3];
-      holders = newData[4];
-      arity = newData[9] = newData[9] === undefined
-        ? (isBindKey ? 0 : func.length)
-        : nativeMax(newData[9] - length, 0);
-
-      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
-        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
-      }
-      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
-        var result = createBind(func, bitmask, thisArg);
-      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
-        result = createCurry(func, bitmask, arity);
-      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
-        result = createPartial(func, bitmask, thisArg, partials);
-      } else {
-        result = createHybrid.apply(undefined, newData);
-      }
-      var setter = data ? baseSetData : setData;
-      return setWrapToString(setter(result, newData), func, bitmask);
-    }
-
-    /**
-     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
-     * of source objects to the destination object for all destination properties
-     * that resolve to `undefined`.
-     *
-     * @private
-     * @param {*} objValue The destination value.
-     * @param {*} srcValue The source value.
-     * @param {string} key The key of the property to assign.
-     * @param {Object} object The parent object of `objValue`.
-     * @returns {*} Returns the value to assign.
-     */
-    function customDefaultsAssignIn(objValue, srcValue, key, object) {
-      if (objValue === undefined ||
-          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
-        return srcValue;
-      }
-      return objValue;
-    }
-
-    /**
-     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
-     * objects into destination objects that are passed thru.
-     *
-     * @private
-     * @param {*} objValue The destination value.
-     * @param {*} srcValue The source value.
-     * @param {string} key The key of the property to merge.
-     * @param {Object} object The parent object of `objValue`.
-     * @param {Object} source The parent object of `srcValue`.
-     * @param {Object} [stack] Tracks traversed source values and their merged
-     *  counterparts.
-     * @returns {*} Returns the value to assign.
-     */
-    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
-      if (isObject(objValue) && isObject(srcValue)) {
-        // Recursively merge objects and arrays (susceptible to call stack limits).
-        stack.set(srcValue, objValue);
-        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
-        stack['delete'](srcValue);
-      }
-      return objValue;
-    }
-
-    /**
-     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
-     * objects.
-     *
-     * @private
-     * @param {*} value The value to inspect.
-     * @param {string} key The key of the property to inspect.
-     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
-     */
-    function customOmitClone(value) {
-      return isPlainObject(value) ? undefined : value;
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for arrays with support for
-     * partial deep comparisons.
-     *
-     * @private
-     * @param {Array} array The array to compare.
-     * @param {Array} other The other array to compare.
-     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
-     * @param {Function} customizer The function to customize comparisons.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Object} stack Tracks traversed `array` and `other` objects.
-     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
-     */
-    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
-      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
-          arrLength = array.length,
-          othLength = other.length;
-
-      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
-        return false;
-      }
-      // Assume cyclic values are equal.
-      var stacked = stack.get(array);
-      if (stacked && stack.get(other)) {
-        return stacked == other;
-      }
-      var index = -1,
-          result = true,
-          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;
-
-      stack.set(array, other);
-      stack.set(other, array);
-
-      // Ignore non-index properties.
-      while (++index < arrLength) {
-        var arrValue = array[index],
-            othValue = other[index];
-
-        if (customizer) {
-          var compared = isPartial
-            ? customizer(othValue, arrValue, index, other, array, stack)
-            : customizer(arrValue, othValue, index, array, other, stack);
-        }
-        if (compared !== undefined) {
-          if (compared) {
-            continue;
-          }
-          result = false;
-          break;
-        }
-        // Recursively compare arrays (susceptible to call stack limits).
-        if (seen) {
-          if (!arraySome(other, function(othValue, othIndex) {
-                if (!cacheHas(seen, othIndex) &&
-                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
-                  return seen.push(othIndex);
-                }
-              })) {
-            result = false;
-            break;
-          }
-        } else if (!(
-              arrValue === othValue ||
-                equalFunc(arrValue, othValue, bitmask, customizer, stack)
-            )) {
-          result = false;
-          break;
-        }
-      }
-      stack['delete'](array);
-      stack['delete'](other);
-      return result;
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for comparing objects of
-     * the same `toStringTag`.
-     *
-     * **Note:** This function only supports comparing values with tags of
-     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {string} tag The `toStringTag` of the objects to compare.
-     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
-     * @param {Function} customizer The function to customize comparisons.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Object} stack Tracks traversed `object` and `other` objects.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
-      switch (tag) {
-        case dataViewTag:
-          if ((object.byteLength != other.byteLength) ||
-              (object.byteOffset != other.byteOffset)) {
-            return false;
-          }
-          object = object.buffer;
-          other = other.buffer;
-
-        case arrayBufferTag:
-          if ((object.byteLength != other.byteLength) ||
-              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
-            return false;
-          }
-          return true;
-
-        case boolTag:
-        case dateTag:
-        case numberTag:
-          // Coerce booleans to `1` or `0` and dates to milliseconds.
-          // Invalid dates are coerced to `NaN`.
-          return eq(+object, +other);
-
-        case errorTag:
-          return object.name == other.name && object.message == other.message;
-
-        case regexpTag:
-        case stringTag:
-          // Coerce regexes to strings and treat strings, primitives and objects,
-          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
-          // for more details.
-          return object == (other + '');
-
-        case mapTag:
-          var convert = mapToArray;
-
-        case setTag:
-          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
-          convert || (convert = setToArray);
-
-          if (object.size != other.size && !isPartial) {
-            return false;
-          }
-          // Assume cyclic values are equal.
-          var stacked = stack.get(object);
-          if (stacked) {
-            return stacked == other;
-          }
-          bitmask |= COMPARE_UNORDERED_FLAG;
-
-          // Recursively compare objects (susceptible to call stack limits).
-          stack.set(object, other);
-          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
-          stack['delete'](object);
-          return result;
-
-        case symbolTag:
-          if (symbolValueOf) {
-            return symbolValueOf.call(object) == symbolValueOf.call(other);
-          }
-      }
-      return false;
-    }
-
-    /**
-     * A specialized version of `baseIsEqualDeep` for objects with support for
-     * partial deep comparisons.
-     *
-     * @private
-     * @param {Object} object The object to compare.
-     * @param {Object} other The other object to compare.
-     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
-     * @param {Function} customizer The function to customize comparisons.
-     * @param {Function} equalFunc The function to determine equivalents of values.
-     * @param {Object} stack Tracks traversed `object` and `other` objects.
-     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
-     */
-    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
-      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
-          objProps = getAllKeys(object),
-          objLength = objProps.length,
-          othProps = getAllKeys(other),
-          othLength = othProps.length;
-
-      if (objLength != othLength && !isPartial) {
-        return false;
-      }
-      var index = objLength;
-      while (index--) {
-        var key = objProps[index];
-        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
-          return false;
-        }
-      }
-      // Assume cyclic values are equal.
-      var stacked = stack.get(object);
-      if (stacked && stack.get(other)) {
-        return stacked == other;
-      }
-      var result = true;
-      stack.set(object, other);
-      stack.set(other, object);
-
-      var skipCtor = isPartial;
-      while (++index < objLength) {
-        key = objProps[index];
-        var objValue = object[key],
-            othValue = other[key];
-
-        if (customizer) {
-          var compared = isPartial
-            ? customizer(othValue, objValue, key, other, object, stack)
-            : customizer(objValue, othValue, key, object, other, stack);
-        }
-        // Recursively compare objects (susceptible to call stack limits).
-        if (!(compared === undefined
-              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
-              : compared
-            )) {
-          result = false;
-          break;
-        }
-        skipCtor || (skipCtor = key == 'constructor');
-      }
-      if (result && !skipCtor) {
-        var objCtor = object.constructor,
-            othCtor = other.constructor;
-
-        // Non `Object` object instances with different constructors are not equal.
-        if (objCtor != othCtor &&
-            ('constructor' in object && 'constructor' in other) &&
-            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
-              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
-          result = false;
-        }
-      }
-      stack['delete'](object);
-      stack['delete'](other);
-      return result;
-    }
-
-    /**
-     * A specialized version of `baseRest` which flattens the rest array.
-     *
-     * @private
-     * @param {Function} func The function to apply a rest parameter to.
-     * @returns {Function} Returns the new function.
-     */
-    function flatRest(func) {
-      return setToString(overRest(func, undefined, flatten), func + '');
-    }
-
-    /**
-     * Creates an array of own enumerable property names and symbols of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names and symbols.
-     */
-    function getAllKeys(object) {
-      return baseGetAllKeys(object, keys, getSymbols);
-    }
-
-    /**
-     * Creates an array of own and inherited enumerable property names and
-     * symbols of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names and symbols.
-     */
-    function getAllKeysIn(object) {
-      return baseGetAllKeys(object, keysIn, getSymbolsIn);
-    }
-
-    /**
-     * Gets metadata for `func`.
-     *
-     * @private
-     * @param {Function} func The function to query.
-     * @returns {*} Returns the metadata for `func`.
-     */
-    var getData = !metaMap ? noop : function(func) {
-      return metaMap.get(func);
-    };
-
-    /**
-     * Gets the name of `func`.
-     *
-     * @private
-     * @param {Function} func The function to query.
-     * @returns {string} Returns the function name.
-     */
-    function getFuncName(func) {
-      var result = (func.name + ''),
-          array = realNames[result],
-          length = hasOwnProperty.call(realNames, result) ? array.length : 0;
-
-      while (length--) {
-        var data = array[length],
-            otherFunc = data.func;
-        if (otherFunc == null || otherFunc == func) {
-          return data.name;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Gets the argument placeholder value for `func`.
-     *
-     * @private
-     * @param {Function} func The function to inspect.
-     * @returns {*} Returns the placeholder value.
-     */
-    function getHolder(func) {
-      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
-      return object.placeholder;
-    }
-
-    /**
-     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
-     * this function returns the custom method, otherwise it returns `baseIteratee`.
-     * If arguments are provided, the chosen function is invoked with them and
-     * its result is returned.
-     *
-     * @private
-     * @param {*} [value] The value to convert to an iteratee.
-     * @param {number} [arity] The arity of the created iteratee.
-     * @returns {Function} Returns the chosen function or its result.
-     */
-    function getIteratee() {
-      var result = lodash.iteratee || iteratee;
-      result = result === iteratee ? baseIteratee : result;
-      return arguments.length ? result(arguments[0], arguments[1]) : result;
-    }
-
-    /**
-     * Gets the data for `map`.
-     *
-     * @private
-     * @param {Object} map The map to query.
-     * @param {string} key The reference key.
-     * @returns {*} Returns the map data.
-     */
-    function getMapData(map, key) {
-      var data = map.__data__;
-      return isKeyable(key)
-        ? data[typeof key == 'string' ? 'string' : 'hash']
-        : data.map;
-    }
-
-    /**
-     * Gets the property names, values, and compare flags of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the match data of `object`.
-     */
-    function getMatchData(object) {
-      var result = keys(object),
-          length = result.length;
-
-      while (length--) {
-        var key = result[length],
-            value = object[key];
-
-        result[length] = [key, value, isStrictComparable(value)];
-      }
-      return result;
-    }
-
-    /**
-     * Gets the native function at `key` of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {string} key The key of the method to get.
-     * @returns {*} Returns the function if it's native, else `undefined`.
-     */
-    function getNative(object, key) {
-      var value = getValue(object, key);
-      return baseIsNative(value) ? value : undefined;
-    }
-
-    /**
-     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
-     *
-     * @private
-     * @param {*} value The value to query.
-     * @returns {string} Returns the raw `toStringTag`.
-     */
-    function getRawTag(value) {
-      var isOwn = hasOwnProperty.call(value, symToStringTag),
-          tag = value[symToStringTag];
-
-      try {
-        value[symToStringTag] = undefined;
-        var unmasked = true;
-      } catch (e) {}
-
-      var result = nativeObjectToString.call(value);
-      if (unmasked) {
-        if (isOwn) {
-          value[symToStringTag] = tag;
-        } else {
-          delete value[symToStringTag];
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Creates an array of the own enumerable symbols of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of symbols.
-     */
-    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
-      if (object == null) {
-        return [];
-      }
-      object = Object(object);
-      return arrayFilter(nativeGetSymbols(object), function(symbol) {
-        return propertyIsEnumerable.call(object, symbol);
-      });
-    };
-
-    /**
-     * Creates an array of the own and inherited enumerable symbols of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of symbols.
-     */
-    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
-      var result = [];
-      while (object) {
-        arrayPush(result, getSymbols(object));
-        object = getPrototype(object);
-      }
-      return result;
-    };
-
-    /**
-     * Gets the `toStringTag` of `value`.
-     *
-     * @private
-     * @param {*} value The value to query.
-     * @returns {string} Returns the `toStringTag`.
-     */
-    var getTag = baseGetTag;
-
-    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
-    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-        (Map && getTag(new Map) != mapTag) ||
-        (Promise && getTag(Promise.resolve()) != promiseTag) ||
-        (Set && getTag(new Set) != setTag) ||
-        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-      getTag = function(value) {
-        var result = baseGetTag(value),
-            Ctor = result == objectTag ? value.constructor : undefined,
-            ctorString = Ctor ? toSource(Ctor) : '';
-
-        if (ctorString) {
-          switch (ctorString) {
-            case dataViewCtorString: return dataViewTag;
-            case mapCtorString: return mapTag;
-            case promiseCtorString: return promiseTag;
-            case setCtorString: return setTag;
-            case weakMapCtorString: return weakMapTag;
-          }
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Gets the view, applying any `transforms` to the `start` and `end` positions.
-     *
-     * @private
-     * @param {number} start The start of the view.
-     * @param {number} end The end of the view.
-     * @param {Array} transforms The transformations to apply to the view.
-     * @returns {Object} Returns an object containing the `start` and `end`
-     *  positions of the view.
-     */
-    function getView(start, end, transforms) {
-      var index = -1,
-          length = transforms.length;
-
-      while (++index < length) {
-        var data = transforms[index],
-            size = data.size;
-
-        switch (data.type) {
-          case 'drop':      start += size; break;
-          case 'dropRight': end -= size; break;
-          case 'take':      end = nativeMin(end, start + size); break;
-          case 'takeRight': start = nativeMax(start, end - size); break;
-        }
-      }
-      return { 'start': start, 'end': end };
-    }
-
-    /**
-     * Extracts wrapper details from the `source` body comment.
-     *
-     * @private
-     * @param {string} source The source to inspect.
-     * @returns {Array} Returns the wrapper details.
-     */
-    function getWrapDetails(source) {
-      var match = source.match(reWrapDetails);
-      return match ? match[1].split(reSplitDetails) : [];
-    }
-
-    /**
-     * Checks if `path` exists on `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path to check.
-     * @param {Function} hasFunc The function to check properties.
-     * @returns {boolean} Returns `true` if `path` exists, else `false`.
-     */
-    function hasPath(object, path, hasFunc) {
-      path = castPath(path, object);
-
-      var index = -1,
-          length = path.length,
-          result = false;
-
-      while (++index < length) {
-        var key = toKey(path[index]);
-        if (!(result = object != null && hasFunc(object, key))) {
-          break;
-        }
-        object = object[key];
-      }
-      if (result || ++index != length) {
-        return result;
-      }
-      length = object == null ? 0 : object.length;
-      return !!length && isLength(length) && isIndex(key, length) &&
-        (isArray(object) || isArguments(object));
-    }
-
-    /**
-     * Initializes an array clone.
-     *
-     * @private
-     * @param {Array} array The array to clone.
-     * @returns {Array} Returns the initialized clone.
-     */
-    function initCloneArray(array) {
-      var length = array.length,
-          result = new array.constructor(length);
-
-      // Add properties assigned by `RegExp#exec`.
-      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
-        result.index = array.index;
-        result.input = array.input;
-      }
-      return result;
-    }
-
-    /**
-     * Initializes an object clone.
-     *
-     * @private
-     * @param {Object} object The object to clone.
-     * @returns {Object} Returns the initialized clone.
-     */
-    function initCloneObject(object) {
-      return (typeof object.constructor == 'function' && !isPrototype(object))
-        ? baseCreate(getPrototype(object))
-        : {};
-    }
-
-    /**
-     * Initializes an object clone based on its `toStringTag`.
-     *
-     * **Note:** This function only supports cloning values with tags of
-     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
-     *
-     * @private
-     * @param {Object} object The object to clone.
-     * @param {string} tag The `toStringTag` of the object to clone.
-     * @param {boolean} [isDeep] Specify a deep clone.
-     * @returns {Object} Returns the initialized clone.
-     */
-    function initCloneByTag(object, tag, isDeep) {
-      var Ctor = object.constructor;
-      switch (tag) {
-        case arrayBufferTag:
-          return cloneArrayBuffer(object);
-
-        case boolTag:
-        case dateTag:
-          return new Ctor(+object);
-
-        case dataViewTag:
-          return cloneDataView(object, isDeep);
-
-        case float32Tag: case float64Tag:
-        case int8Tag: case int16Tag: case int32Tag:
-        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
-          return cloneTypedArray(object, isDeep);
-
-        case mapTag:
-          return new Ctor;
-
-        case numberTag:
-        case stringTag:
-          return new Ctor(object);
-
-        case regexpTag:
-          return cloneRegExp(object);
-
-        case setTag:
-          return new Ctor;
-
-        case symbolTag:
-          return cloneSymbol(object);
-      }
-    }
-
-    /**
-     * Inserts wrapper `details` in a comment at the top of the `source` body.
-     *
-     * @private
-     * @param {string} source The source to modify.
-     * @returns {Array} details The details to insert.
-     * @returns {string} Returns the modified source.
-     */
-    function insertWrapDetails(source, details) {
-      var length = details.length;
-      if (!length) {
-        return source;
-      }
-      var lastIndex = length - 1;
-      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
-      details = details.join(length > 2 ? ', ' : ' ');
-      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
-    }
-
-    /**
-     * Checks if `value` is a flattenable `arguments` object or array.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
-     */
-    function isFlattenable(value) {
-      return isArray(value) || isArguments(value) ||
-        !!(spreadableSymbol && value && value[spreadableSymbol]);
-    }
-
-    /**
-     * Checks if `value` is a valid array-like index.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
-     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
-     */
-    function isIndex(value, length) {
-      var type = typeof value;
-      length = length == null ? MAX_SAFE_INTEGER : length;
-
-      return !!length &&
-        (type == 'number' ||
-          (type != 'symbol' && reIsUint.test(value))) &&
-            (value > -1 && value % 1 == 0 && value < length);
-    }
-
-    /**
-     * Checks if the given arguments are from an iteratee call.
-     *
-     * @private
-     * @param {*} value The potential iteratee value argument.
-     * @param {*} index The potential iteratee index or key argument.
-     * @param {*} object The potential iteratee object argument.
-     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
-     *  else `false`.
-     */
-    function isIterateeCall(value, index, object) {
-      if (!isObject(object)) {
-        return false;
-      }
-      var type = typeof index;
-      if (type == 'number'
-            ? (isArrayLike(object) && isIndex(index, object.length))
-            : (type == 'string' && index in object)
-          ) {
-        return eq(object[index], value);
-      }
-      return false;
-    }
-
-    /**
-     * Checks if `value` is a property name and not a property path.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @param {Object} [object] The object to query keys on.
-     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
-     */
-    function isKey(value, object) {
-      if (isArray(value)) {
-        return false;
-      }
-      var type = typeof value;
-      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
-          value == null || isSymbol(value)) {
-        return true;
-      }
-      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
-        (object != null && value in Object(object));
-    }
-
-    /**
-     * Checks if `value` is suitable for use as unique object key.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
-     */
-    function isKeyable(value) {
-      var type = typeof value;
-      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
-        ? (value !== '__proto__')
-        : (value === null);
-    }
-
-    /**
-     * Checks if `func` has a lazy counterpart.
-     *
-     * @private
-     * @param {Function} func The function to check.
-     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
-     *  else `false`.
-     */
-    function isLaziable(func) {
-      var funcName = getFuncName(func),
-          other = lodash[funcName];
-
-      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
-        return false;
-      }
-      if (func === other) {
-        return true;
-      }
-      var data = getData(other);
-      return !!data && func === data[0];
-    }
-
-    /**
-     * Checks if `func` has its source masked.
-     *
-     * @private
-     * @param {Function} func The function to check.
-     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
-     */
-    function isMasked(func) {
-      return !!maskSrcKey && (maskSrcKey in func);
-    }
-
-    /**
-     * Checks if `func` is capable of being masked.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
-     */
-    var isMaskable = coreJsData ? isFunction : stubFalse;
-
-    /**
-     * Checks if `value` is likely a prototype object.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
-     */
-    function isPrototype(value) {
-      var Ctor = value && value.constructor,
-          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
-
-      return value === proto;
-    }
-
-    /**
-     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
-     *
-     * @private
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` if suitable for strict
-     *  equality comparisons, else `false`.
-     */
-    function isStrictComparable(value) {
-      return value === value && !isObject(value);
-    }
-
-    /**
-     * A specialized version of `matchesProperty` for source values suitable
-     * for strict equality comparisons, i.e. `===`.
-     *
-     * @private
-     * @param {string} key The key of the property to get.
-     * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new spec function.
-     */
-    function matchesStrictComparable(key, srcValue) {
-      return function(object) {
-        if (object == null) {
-          return false;
-        }
-        return object[key] === srcValue &&
-          (srcValue !== undefined || (key in Object(object)));
-      };
-    }
-
-    /**
-     * A specialized version of `_.memoize` which clears the memoized function's
-     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
-     *
-     * @private
-     * @param {Function} func The function to have its output memoized.
-     * @returns {Function} Returns the new memoized function.
-     */
-    function memoizeCapped(func) {
-      var result = memoize(func, function(key) {
-        if (cache.size === MAX_MEMOIZE_SIZE) {
-          cache.clear();
-        }
-        return key;
-      });
-
-      var cache = result.cache;
-      return result;
-    }
-
-    /**
-     * Merges the function metadata of `source` into `data`.
-     *
-     * Merging metadata reduces the number of wrappers used to invoke a function.
-     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
-     * may be applied regardless of execution order. Methods like `_.ary` and
-     * `_.rearg` modify function arguments, making the order in which they are
-     * executed important, preventing the merging of metadata. However, we make
-     * an exception for a safe combined case where curried functions have `_.ary`
-     * and or `_.rearg` applied.
-     *
-     * @private
-     * @param {Array} data The destination metadata.
-     * @param {Array} source The source metadata.
-     * @returns {Array} Returns `data`.
-     */
-    function mergeData(data, source) {
-      var bitmask = data[1],
-          srcBitmask = source[1],
-          newBitmask = bitmask | srcBitmask,
-          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);
-
-      var isCombo =
-        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
-        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
-        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));
-
-      // Exit early if metadata can't be merged.
-      if (!(isCommon || isCombo)) {
-        return data;
-      }
-      // Use source `thisArg` if available.
-      if (srcBitmask & WRAP_BIND_FLAG) {
-        data[2] = source[2];
-        // Set when currying a bound function.
-        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
-      }
-      // Compose partial arguments.
-      var value = source[3];
-      if (value) {
-        var partials = data[3];
-        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
-        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
-      }
-      // Compose partial right arguments.
-      value = source[5];
-      if (value) {
-        partials = data[5];
-        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
-        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
-      }
-      // Use source `argPos` if available.
-      value = source[7];
-      if (value) {
-        data[7] = value;
-      }
-      // Use source `ary` if it's smaller.
-      if (srcBitmask & WRAP_ARY_FLAG) {
-        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
-      }
-      // Use source `arity` if one is not provided.
-      if (data[9] == null) {
-        data[9] = source[9];
-      }
-      // Use source `func` and merge bitmasks.
-      data[0] = source[0];
-      data[1] = newBitmask;
-
-      return data;
-    }
-
-    /**
-     * This function is like
-     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
-     * except that it includes inherited enumerable properties.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     */
-    function nativeKeysIn(object) {
-      var result = [];
-      if (object != null) {
-        for (var key in Object(object)) {
-          result.push(key);
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Converts `value` to a string using `Object.prototype.toString`.
-     *
-     * @private
-     * @param {*} value The value to convert.
-     * @returns {string} Returns the converted string.
-     */
-    function objectToString(value) {
-      return nativeObjectToString.call(value);
-    }
-
-    /**
-     * A specialized version of `baseRest` which transforms the rest array.
-     *
-     * @private
-     * @param {Function} func The function to apply a rest parameter to.
-     * @param {number} [start=func.length-1] The start position of the rest parameter.
-     * @param {Function} transform The rest array transform.
-     * @returns {Function} Returns the new function.
-     */
-    function overRest(func, start, transform) {
-      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
-      return function() {
-        var args = arguments,
-            index = -1,
-            length = nativeMax(args.length - start, 0),
-            array = Array(length);
-
-        while (++index < length) {
-          array[index] = args[start + index];
-        }
-        index = -1;
-        var otherArgs = Array(start + 1);
-        while (++index < start) {
-          otherArgs[index] = args[index];
-        }
-        otherArgs[start] = transform(array);
-        return apply(func, this, otherArgs);
-      };
-    }
-
-    /**
-     * Gets the parent value at `path` of `object`.
-     *
-     * @private
-     * @param {Object} object The object to query.
-     * @param {Array} path The path to get the parent value of.
-     * @returns {*} Returns the parent value.
-     */
-    function parent(object, path) {
-      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
-    }
-
-    /**
-     * Reorder `array` according to the specified indexes where the element at
-     * the first index is assigned as the first element, the element at
-     * the second index is assigned as the second element, and so on.
-     *
-     * @private
-     * @param {Array} array The array to reorder.
-     * @param {Array} indexes The arranged array indexes.
-     * @returns {Array} Returns `array`.
-     */
-    function reorder(array, indexes) {
-      var arrLength = array.length,
-          length = nativeMin(indexes.length, arrLength),
-          oldArray = copyArray(array);
-
-      while (length--) {
-        var index = indexes[length];
-        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
-      }
-      return array;
-    }
-
-    /**
-     * Sets metadata for `func`.
-     *
-     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
-     * period of time, it will trip its breaker and transition to an identity
-     * function to avoid garbage collection pauses in V8. See
-     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
-     * for more details.
-     *
-     * @private
-     * @param {Function} func The function to associate metadata with.
-     * @param {*} data The metadata.
-     * @returns {Function} Returns `func`.
-     */
-    var setData = shortOut(baseSetData);
-
-    /**
-     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
-     *
-     * @private
-     * @param {Function} func The function to delay.
-     * @param {number} wait The number of milliseconds to delay invocation.
-     * @returns {number|Object} Returns the timer id or timeout object.
-     */
-    var setTimeout = ctxSetTimeout || function(func, wait) {
-      return root.setTimeout(func, wait);
-    };
-
-    /**
-     * Sets the `toString` method of `func` to return `string`.
-     *
-     * @private
-     * @param {Function} func The function to modify.
-     * @param {Function} string The `toString` result.
-     * @returns {Function} Returns `func`.
-     */
-    var setToString = shortOut(baseSetToString);
-
-    /**
-     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
-     * with wrapper details in a comment at the top of the source body.
-     *
-     * @private
-     * @param {Function} wrapper The function to modify.
-     * @param {Function} reference The reference function.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @returns {Function} Returns `wrapper`.
-     */
-    function setWrapToString(wrapper, reference, bitmask) {
-      var source = (reference + '');
-      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
-    }
-
-    /**
-     * Creates a function that'll short out and invoke `identity` instead
-     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
-     * milliseconds.
-     *
-     * @private
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new shortable function.
-     */
-    function shortOut(func) {
-      var count = 0,
-          lastCalled = 0;
-
-      return function() {
-        var stamp = nativeNow(),
-            remaining = HOT_SPAN - (stamp - lastCalled);
-
-        lastCalled = stamp;
-        if (remaining > 0) {
-          if (++count >= HOT_COUNT) {
-            return arguments[0];
-          }
-        } else {
-          count = 0;
-        }
-        return func.apply(undefined, arguments);
-      };
-    }
-
-    /**
-     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
-     *
-     * @private
-     * @param {Array} array The array to shuffle.
-     * @param {number} [size=array.length] The size of `array`.
-     * @returns {Array} Returns `array`.
-     */
-    function shuffleSelf(array, size) {
-      var index = -1,
-          length = array.length,
-          lastIndex = length - 1;
-
-      size = size === undefined ? length : size;
-      while (++index < size) {
-        var rand = baseRandom(index, lastIndex),
-            value = array[rand];
-
-        array[rand] = array[index];
-        array[index] = value;
-      }
-      array.length = size;
-      return array;
-    }
-
-    /**
-     * Converts `string` to a property path array.
-     *
-     * @private
-     * @param {string} string The string to convert.
-     * @returns {Array} Returns the property path array.
-     */
-    var stringToPath = memoizeCapped(function(string) {
-      var result = [];
-      if (string.charCodeAt(0) === 46 /* . */) {
-        result.push('');
-      }
-      string.replace(rePropName, function(match, number, quote, subString) {
-        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
-      });
-      return result;
-    });
-
-    /**
-     * Converts `value` to a string key if it's not a string or symbol.
-     *
-     * @private
-     * @param {*} value The value to inspect.
-     * @returns {string|symbol} Returns the key.
-     */
-    function toKey(value) {
-      if (typeof value == 'string' || isSymbol(value)) {
-        return value;
-      }
-      var result = (value + '');
-      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
-    }
-
-    /**
-     * Converts `func` to its source code.
-     *
-     * @private
-     * @param {Function} func The function to convert.
-     * @returns {string} Returns the source code.
-     */
-    function toSource(func) {
-      if (func != null) {
-        try {
-          return funcToString.call(func);
-        } catch (e) {}
-        try {
-          return (func + '');
-        } catch (e) {}
-      }
-      return '';
-    }
-
-    /**
-     * Updates wrapper `details` based on `bitmask` flags.
-     *
-     * @private
-     * @returns {Array} details The details to modify.
-     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
-     * @returns {Array} Returns `details`.
-     */
-    function updateWrapDetails(details, bitmask) {
-      arrayEach(wrapFlags, function(pair) {
-        var value = '_.' + pair[0];
-        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
-          details.push(value);
-        }
-      });
-      return details.sort();
-    }
-
-    /**
-     * Creates a clone of `wrapper`.
-     *
-     * @private
-     * @param {Object} wrapper The wrapper to clone.
-     * @returns {Object} Returns the cloned wrapper.
-     */
-    function wrapperClone(wrapper) {
-      if (wrapper instanceof LazyWrapper) {
-        return wrapper.clone();
-      }
-      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
-      result.__actions__ = copyArray(wrapper.__actions__);
-      result.__index__  = wrapper.__index__;
-      result.__values__ = wrapper.__values__;
-      return result;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an array of elements split into groups the length of `size`.
-     * If `array` can't be split evenly, the final chunk will be the remaining
-     * elements.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to process.
-     * @param {number} [size=1] The length of each chunk
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the new array of chunks.
-     * @example
-     *
-     * _.chunk(['a', 'b', 'c', 'd'], 2);
-     * // => [['a', 'b'], ['c', 'd']]
-     *
-     * _.chunk(['a', 'b', 'c', 'd'], 3);
-     * // => [['a', 'b', 'c'], ['d']]
-     */
-    function chunk(array, size, guard) {
-      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
-        size = 1;
-      } else {
-        size = nativeMax(toInteger(size), 0);
-      }
-      var length = array == null ? 0 : array.length;
-      if (!length || size < 1) {
-        return [];
-      }
-      var index = 0,
-          resIndex = 0,
-          result = Array(nativeCeil(length / size));
-
-      while (index < length) {
-        result[resIndex++] = baseSlice(array, index, (index += size));
-      }
-      return result;
-    }
-
-    /**
-     * Creates an array with all falsey values removed. The values `false`, `null`,
-     * `0`, `""`, `undefined`, and `NaN` are falsey.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to compact.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.compact([0, 1, false, 2, '', 3]);
-     * // => [1, 2, 3]
-     */
-    function compact(array) {
-      var index = -1,
-          length = array == null ? 0 : array.length,
-          resIndex = 0,
-          result = [];
-
-      while (++index < length) {
-        var value = array[index];
-        if (value) {
-          result[resIndex++] = value;
-        }
-      }
-      return result;
-    }
-
-    /**
-     * Creates a new array concatenating `array` with any additional arrays
-     * and/or values.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to concatenate.
-     * @param {...*} [values] The values to concatenate.
-     * @returns {Array} Returns the new concatenated array.
-     * @example
-     *
-     * var array = [1];
-     * var other = _.concat(array, 2, [3], [[4]]);
-     *
-     * console.log(other);
-     * // => [1, 2, 3, [4]]
-     *
-     * console.log(array);
-     * // => [1]
-     */
-    function concat() {
-      var length = arguments.length;
-      if (!length) {
-        return [];
-      }
-      var args = Array(length - 1),
-          array = arguments[0],
-          index = length;
-
-      while (index--) {
-        args[index - 1] = arguments[index];
-      }
-      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
-    }
-
-    /**
-     * Creates an array of `array` values not included in the other given arrays
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons. The order and references of result values are
-     * determined by the first array.
-     *
-     * **Note:** Unlike `_.pullAll`, this method returns a new array.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {...Array} [values] The values to exclude.
-     * @returns {Array} Returns the new array of filtered values.
-     * @see _.without, _.xor
-     * @example
-     *
-     * _.difference([2, 1], [2, 3]);
-     * // => [1]
-     */
-    var difference = baseRest(function(array, values) {
-      return isArrayLikeObject(array)
-        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
-        : [];
-    });
-
-    /**
-     * This method is like `_.difference` except that it accepts `iteratee` which
-     * is invoked for each element of `array` and `values` to generate the criterion
-     * by which they're compared. The order and references of result values are
-     * determined by the first array. The iteratee is invoked with one argument:
-     * (value).
-     *
-     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {...Array} [values] The values to exclude.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
-     * // => [1.2]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
-     * // => [{ 'x': 2 }]
-     */
-    var differenceBy = baseRest(function(array, values) {
-      var iteratee = last(values);
-      if (isArrayLikeObject(iteratee)) {
-        iteratee = undefined;
-      }
-      return isArrayLikeObject(array)
-        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
-        : [];
-    });
-
-    /**
-     * This method is like `_.difference` except that it accepts `comparator`
-     * which is invoked to compare elements of `array` to `values`. The order and
-     * references of result values are determined by the first array. The comparator
-     * is invoked with two arguments: (arrVal, othVal).
-     *
-     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {...Array} [values] The values to exclude.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
-     *
-     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
-     * // => [{ 'x': 2, 'y': 1 }]
-     */
-    var differenceWith = baseRest(function(array, values) {
-      var comparator = last(values);
-      if (isArrayLikeObject(comparator)) {
-        comparator = undefined;
-      }
-      return isArrayLikeObject(array)
-        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
-        : [];
-    });
-
-    /**
-     * Creates a slice of `array` with `n` elements dropped from the beginning.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.5.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to drop.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.drop([1, 2, 3]);
-     * // => [2, 3]
-     *
-     * _.drop([1, 2, 3], 2);
-     * // => [3]
-     *
-     * _.drop([1, 2, 3], 5);
-     * // => []
-     *
-     * _.drop([1, 2, 3], 0);
-     * // => [1, 2, 3]
-     */
-    function drop(array, n, guard) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      n = (guard || n === undefined) ? 1 : toInteger(n);
-      return baseSlice(array, n < 0 ? 0 : n, length);
-    }
-
-    /**
-     * Creates a slice of `array` with `n` elements dropped from the end.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to drop.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.dropRight([1, 2, 3]);
-     * // => [1, 2]
-     *
-     * _.dropRight([1, 2, 3], 2);
-     * // => [1]
-     *
-     * _.dropRight([1, 2, 3], 5);
-     * // => []
-     *
-     * _.dropRight([1, 2, 3], 0);
-     * // => [1, 2, 3]
-     */
-    function dropRight(array, n, guard) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      n = (guard || n === undefined) ? 1 : toInteger(n);
-      n = length - n;
-      return baseSlice(array, 0, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` excluding elements dropped from the end.
-     * Elements are dropped until `predicate` returns falsey. The predicate is
-     * invoked with three arguments: (value, index, array).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * _.dropRightWhile(users, function(o) { return !o.active; });
-     * // => objects for ['barney']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
-     * // => objects for ['barney', 'fred']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.dropRightWhile(users, ['active', false]);
-     * // => objects for ['barney']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.dropRightWhile(users, 'active');
-     * // => objects for ['barney', 'fred', 'pebbles']
-     */
-    function dropRightWhile(array, predicate) {
-      return (array && array.length)
-        ? baseWhile(array, getIteratee(predicate, 3), true, true)
-        : [];
-    }
-
-    /**
-     * Creates a slice of `array` excluding elements dropped from the beginning.
-     * Elements are dropped until `predicate` returns falsey. The predicate is
-     * invoked with three arguments: (value, index, array).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * _.dropWhile(users, function(o) { return !o.active; });
-     * // => objects for ['pebbles']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.dropWhile(users, { 'user': 'barney', 'active': false });
-     * // => objects for ['fred', 'pebbles']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.dropWhile(users, ['active', false]);
-     * // => objects for ['pebbles']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.dropWhile(users, 'active');
-     * // => objects for ['barney', 'fred', 'pebbles']
-     */
-    function dropWhile(array, predicate) {
-      return (array && array.length)
-        ? baseWhile(array, getIteratee(predicate, 3), true)
-        : [];
-    }
-
-    /**
-     * Fills elements of `array` with `value` from `start` up to, but not
-     * including, `end`.
-     *
-     * **Note:** This method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.2.0
-     * @category Array
-     * @param {Array} array The array to fill.
-     * @param {*} value The value to fill `array` with.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [1, 2, 3];
-     *
-     * _.fill(array, 'a');
-     * console.log(array);
-     * // => ['a', 'a', 'a']
-     *
-     * _.fill(Array(3), 2);
-     * // => [2, 2, 2]
-     *
-     * _.fill([4, 6, 8, 10], '*', 1, 3);
-     * // => [4, '*', '*', 10]
-     */
-    function fill(array, value, start, end) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
-        start = 0;
-        end = length;
-      }
-      return baseFill(array, value, start, end);
-    }
-
-    /**
-     * This method is like `_.find` except that it returns the index of the first
-     * element `predicate` returns truthy for instead of the element itself.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param {number} [fromIndex=0] The index to search from.
-     * @returns {number} Returns the index of the found element, else `-1`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * _.findIndex(users, function(o) { return o.user == 'barney'; });
-     * // => 0
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.findIndex(users, { 'user': 'fred', 'active': false });
-     * // => 1
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.findIndex(users, ['active', false]);
-     * // => 0
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.findIndex(users, 'active');
-     * // => 2
-     */
-    function findIndex(array, predicate, fromIndex) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return -1;
-      }
-      var index = fromIndex == null ? 0 : toInteger(fromIndex);
-      if (index < 0) {
-        index = nativeMax(length + index, 0);
-      }
-      return baseFindIndex(array, getIteratee(predicate, 3), index);
-    }
-
-    /**
-     * This method is like `_.findIndex` except that it iterates over elements
-     * of `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param {number} [fromIndex=array.length-1] The index to search from.
-     * @returns {number} Returns the index of the found element, else `-1`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
-     * // => 2
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
-     * // => 0
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.findLastIndex(users, ['active', false]);
-     * // => 2
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.findLastIndex(users, 'active');
-     * // => 0
-     */
-    function findLastIndex(array, predicate, fromIndex) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return -1;
-      }
-      var index = length - 1;
-      if (fromIndex !== undefined) {
-        index = toInteger(fromIndex);
-        index = fromIndex < 0
-          ? nativeMax(length + index, 0)
-          : nativeMin(index, length - 1);
-      }
-      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
-    }
-
-    /**
-     * Flattens `array` a single level deep.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to flatten.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * _.flatten([1, [2, [3, [4]], 5]]);
-     * // => [1, 2, [3, [4]], 5]
-     */
-    function flatten(array) {
-      var length = array == null ? 0 : array.length;
-      return length ? baseFlatten(array, 1) : [];
-    }
-
-    /**
-     * Recursively flattens `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to flatten.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * _.flattenDeep([1, [2, [3, [4]], 5]]);
-     * // => [1, 2, 3, 4, 5]
-     */
-    function flattenDeep(array) {
-      var length = array == null ? 0 : array.length;
-      return length ? baseFlatten(array, INFINITY) : [];
-    }
-
-    /**
-     * Recursively flatten `array` up to `depth` times.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.4.0
-     * @category Array
-     * @param {Array} array The array to flatten.
-     * @param {number} [depth=1] The maximum recursion depth.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * var array = [1, [2, [3, [4]], 5]];
-     *
-     * _.flattenDepth(array, 1);
-     * // => [1, 2, [3, [4]], 5]
-     *
-     * _.flattenDepth(array, 2);
-     * // => [1, 2, 3, [4], 5]
-     */
-    function flattenDepth(array, depth) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      depth = depth === undefined ? 1 : toInteger(depth);
-      return baseFlatten(array, depth);
-    }
-
-    /**
-     * The inverse of `_.toPairs`; this method returns an object composed
-     * from key-value `pairs`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} pairs The key-value pairs.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * _.fromPairs([['a', 1], ['b', 2]]);
-     * // => { 'a': 1, 'b': 2 }
-     */
-    function fromPairs(pairs) {
-      var index = -1,
-          length = pairs == null ? 0 : pairs.length,
-          result = {};
-
-      while (++index < length) {
-        var pair = pairs[index];
-        result[pair[0]] = pair[1];
-      }
-      return result;
-    }
-
-    /**
-     * Gets the first element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @alias first
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {*} Returns the first element of `array`.
-     * @example
-     *
-     * _.head([1, 2, 3]);
-     * // => 1
-     *
-     * _.head([]);
-     * // => undefined
-     */
-    function head(array) {
-      return (array && array.length) ? array[0] : undefined;
-    }
-
-    /**
-     * Gets the index at which the first occurrence of `value` is found in `array`
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons. If `fromIndex` is negative, it's used as the
-     * offset from the end of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {*} value The value to search for.
-     * @param {number} [fromIndex=0] The index to search from.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.indexOf([1, 2, 1, 2], 2);
-     * // => 1
-     *
-     * // Search from the `fromIndex`.
-     * _.indexOf([1, 2, 1, 2], 2, 2);
-     * // => 3
-     */
-    function indexOf(array, value, fromIndex) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return -1;
-      }
-      var index = fromIndex == null ? 0 : toInteger(fromIndex);
-      if (index < 0) {
-        index = nativeMax(length + index, 0);
-      }
-      return baseIndexOf(array, value, index);
-    }
-
-    /**
-     * Gets all but the last element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.initial([1, 2, 3]);
-     * // => [1, 2]
-     */
-    function initial(array) {
-      var length = array == null ? 0 : array.length;
-      return length ? baseSlice(array, 0, -1) : [];
-    }
-
-    /**
-     * Creates an array of unique values that are included in all given arrays
-     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons. The order and references of result values are
-     * determined by the first array.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of intersecting values.
-     * @example
-     *
-     * _.intersection([2, 1], [2, 3]);
-     * // => [2]
-     */
-    var intersection = baseRest(function(arrays) {
-      var mapped = arrayMap(arrays, castArrayLikeObject);
-      return (mapped.length && mapped[0] === arrays[0])
-        ? baseIntersection(mapped)
-        : [];
-    });
-
-    /**
-     * This method is like `_.intersection` except that it accepts `iteratee`
-     * which is invoked for each element of each `arrays` to generate the criterion
-     * by which they're compared. The order and references of result values are
-     * determined by the first array. The iteratee is invoked with one argument:
-     * (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns the new array of intersecting values.
-     * @example
-     *
-     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
-     * // => [2.1]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
-     * // => [{ 'x': 1 }]
-     */
-    var intersectionBy = baseRest(function(arrays) {
-      var iteratee = last(arrays),
-          mapped = arrayMap(arrays, castArrayLikeObject);
-
-      if (iteratee === last(mapped)) {
-        iteratee = undefined;
-      } else {
-        mapped.pop();
-      }
-      return (mapped.length && mapped[0] === arrays[0])
-        ? baseIntersection(mapped, getIteratee(iteratee, 2))
-        : [];
-    });
-
-    /**
-     * This method is like `_.intersection` except that it accepts `comparator`
-     * which is invoked to compare elements of `arrays`. The order and references
-     * of result values are determined by the first array. The comparator is
-     * invoked with two arguments: (arrVal, othVal).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of intersecting values.
-     * @example
-     *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
-     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
-     *
-     * _.intersectionWith(objects, others, _.isEqual);
-     * // => [{ 'x': 1, 'y': 2 }]
-     */
-    var intersectionWith = baseRest(function(arrays) {
-      var comparator = last(arrays),
-          mapped = arrayMap(arrays, castArrayLikeObject);
-
-      comparator = typeof comparator == 'function' ? comparator : undefined;
-      if (comparator) {
-        mapped.pop();
-      }
-      return (mapped.length && mapped[0] === arrays[0])
-        ? baseIntersection(mapped, undefined, comparator)
-        : [];
-    });
-
-    /**
-     * Converts all elements in `array` into a string separated by `separator`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to convert.
-     * @param {string} [separator=','] The element separator.
-     * @returns {string} Returns the joined string.
-     * @example
-     *
-     * _.join(['a', 'b', 'c'], '~');
-     * // => 'a~b~c'
-     */
-    function join(array, separator) {
-      return array == null ? '' : nativeJoin.call(array, separator);
-    }
-
-    /**
-     * Gets the last element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {*} Returns the last element of `array`.
-     * @example
-     *
-     * _.last([1, 2, 3]);
-     * // => 3
-     */
-    function last(array) {
-      var length = array == null ? 0 : array.length;
-      return length ? array[length - 1] : undefined;
-    }
-
-    /**
-     * This method is like `_.indexOf` except that it iterates over elements of
-     * `array` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {*} value The value to search for.
-     * @param {number} [fromIndex=array.length-1] The index to search from.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.lastIndexOf([1, 2, 1, 2], 2);
-     * // => 3
-     *
-     * // Search from the `fromIndex`.
-     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
-     * // => 1
-     */
-    function lastIndexOf(array, value, fromIndex) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return -1;
-      }
-      var index = length;
-      if (fromIndex !== undefined) {
-        index = toInteger(fromIndex);
-        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
-      }
-      return value === value
-        ? strictLastIndexOf(array, value, index)
-        : baseFindIndex(array, baseIsNaN, index, true);
-    }
-
-    /**
-     * Gets the element at index `n` of `array`. If `n` is negative, the nth
-     * element from the end is returned.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.11.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=0] The index of the element to return.
-     * @returns {*} Returns the nth element of `array`.
-     * @example
-     *
-     * var array = ['a', 'b', 'c', 'd'];
-     *
-     * _.nth(array, 1);
-     * // => 'b'
-     *
-     * _.nth(array, -2);
-     * // => 'c';
-     */
-    function nth(array, n) {
-      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
-    }
-
-    /**
-     * Removes all given values from `array` using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
-     * to remove elements from an array by predicate.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {...*} [values] The values to remove.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
-     *
-     * _.pull(array, 'a', 'c');
-     * console.log(array);
-     * // => ['b', 'b']
-     */
-    var pull = baseRest(pullAll);
-
-    /**
-     * This method is like `_.pull` except that it accepts an array of values to remove.
-     *
-     * **Note:** Unlike `_.difference`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {Array} values The values to remove.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
-     *
-     * _.pullAll(array, ['a', 'c']);
-     * console.log(array);
-     * // => ['b', 'b']
-     */
-    function pullAll(array, values) {
-      return (array && array.length && values && values.length)
-        ? basePullAll(array, values)
-        : array;
-    }
-
-    /**
-     * This method is like `_.pullAll` except that it accepts `iteratee` which is
-     * invoked for each element of `array` and `values` to generate the criterion
-     * by which they're compared. The iteratee is invoked with one argument: (value).
-     *
-     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {Array} values The values to remove.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
-     *
-     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
-     * console.log(array);
-     * // => [{ 'x': 2 }]
-     */
-    function pullAllBy(array, values, iteratee) {
-      return (array && array.length && values && values.length)
-        ? basePullAll(array, values, getIteratee(iteratee, 2))
-        : array;
-    }
-
-    /**
-     * This method is like `_.pullAll` except that it accepts `comparator` which
-     * is invoked to compare elements of `array` to `values`. The comparator is
-     * invoked with two arguments: (arrVal, othVal).
-     *
-     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.6.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {Array} values The values to remove.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
-     *
-     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
-     * console.log(array);
-     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
-     */
-    function pullAllWith(array, values, comparator) {
-      return (array && array.length && values && values.length)
-        ? basePullAll(array, values, undefined, comparator)
-        : array;
-    }
-
-    /**
-     * Removes elements from `array` corresponding to `indexes` and returns an
-     * array of removed elements.
-     *
-     * **Note:** Unlike `_.at`, this method mutates `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
-     * @returns {Array} Returns the new array of removed elements.
-     * @example
-     *
-     * var array = ['a', 'b', 'c', 'd'];
-     * var pulled = _.pullAt(array, [1, 3]);
-     *
-     * console.log(array);
-     * // => ['a', 'c']
-     *
-     * console.log(pulled);
-     * // => ['b', 'd']
-     */
-    var pullAt = flatRest(function(array, indexes) {
-      var length = array == null ? 0 : array.length,
-          result = baseAt(array, indexes);
-
-      basePullAt(array, arrayMap(indexes, function(index) {
-        return isIndex(index, length) ? +index : index;
-      }).sort(compareAscending));
-
-      return result;
-    });
-
-    /**
-     * Removes all elements from `array` that `predicate` returns truthy for
-     * and returns an array of the removed elements. The predicate is invoked
-     * with three arguments: (value, index, array).
-     *
-     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
-     * to pull elements from an array by value.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new array of removed elements.
-     * @example
-     *
-     * var array = [1, 2, 3, 4];
-     * var evens = _.remove(array, function(n) {
-     *   return n % 2 == 0;
-     * });
-     *
-     * console.log(array);
-     * // => [1, 3]
-     *
-     * console.log(evens);
-     * // => [2, 4]
-     */
-    function remove(array, predicate) {
-      var result = [];
-      if (!(array && array.length)) {
-        return result;
-      }
-      var index = -1,
-          indexes = [],
-          length = array.length;
-
-      predicate = getIteratee(predicate, 3);
-      while (++index < length) {
-        var value = array[index];
-        if (predicate(value, index, array)) {
-          result.push(value);
-          indexes.push(index);
-        }
-      }
-      basePullAt(array, indexes);
-      return result;
-    }
-
-    /**
-     * Reverses `array` so that the first element becomes the last, the second
-     * element becomes the second to last, and so on.
-     *
-     * **Note:** This method mutates `array` and is based on
-     * [`Array#reverse`](https://mdn.io/Array/reverse).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to modify.
-     * @returns {Array} Returns `array`.
-     * @example
-     *
-     * var array = [1, 2, 3];
-     *
-     * _.reverse(array);
-     * // => [3, 2, 1]
-     *
-     * console.log(array);
-     * // => [3, 2, 1]
-     */
-    function reverse(array) {
-      return array == null ? array : nativeReverse.call(array);
-    }
-
-    /**
-     * Creates a slice of `array` from `start` up to, but not including, `end`.
-     *
-     * **Note:** This method is used instead of
-     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
-     * returned.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to slice.
-     * @param {number} [start=0] The start position.
-     * @param {number} [end=array.length] The end position.
-     * @returns {Array} Returns the slice of `array`.
-     */
-    function slice(array, start, end) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
-        start = 0;
-        end = length;
-      }
-      else {
-        start = start == null ? 0 : toInteger(start);
-        end = end === undefined ? length : toInteger(end);
-      }
-      return baseSlice(array, start, end);
-    }
-
-    /**
-     * Uses a binary search to determine the lowest index at which `value`
-     * should be inserted into `array` in order to maintain its sort order.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * _.sortedIndex([30, 50], 40);
-     * // => 1
-     */
-    function sortedIndex(array, value) {
-      return baseSortedIndex(array, value);
-    }
-
-    /**
-     * This method is like `_.sortedIndex` except that it accepts `iteratee`
-     * which is invoked for `value` and each element of `array` to compute their
-     * sort ranking. The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * var objects = [{ 'x': 4 }, { 'x': 5 }];
-     *
-     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
-     * // => 0
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
-     * // => 0
-     */
-    function sortedIndexBy(array, value, iteratee) {
-      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
-    }
-
-    /**
-     * This method is like `_.indexOf` except that it performs a binary
-     * search on a sorted `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {*} value The value to search for.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
-     * // => 1
-     */
-    function sortedIndexOf(array, value) {
-      var length = array == null ? 0 : array.length;
-      if (length) {
-        var index = baseSortedIndex(array, value);
-        if (index < length && eq(array[index], value)) {
-          return index;
-        }
-      }
-      return -1;
-    }
-
-    /**
-     * This method is like `_.sortedIndex` except that it returns the highest
-     * index at which `value` should be inserted into `array` in order to
-     * maintain its sort order.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
-     * // => 4
-     */
-    function sortedLastIndex(array, value) {
-      return baseSortedIndex(array, value, true);
-    }
-
-    /**
-     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
-     * which is invoked for `value` and each element of `array` to compute their
-     * sort ranking. The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The sorted array to inspect.
-     * @param {*} value The value to evaluate.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {number} Returns the index at which `value` should be inserted
-     *  into `array`.
-     * @example
-     *
-     * var objects = [{ 'x': 4 }, { 'x': 5 }];
-     *
-     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
-     * // => 1
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
-     * // => 1
-     */
-    function sortedLastIndexBy(array, value, iteratee) {
-      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
-    }
-
-    /**
-     * This method is like `_.lastIndexOf` except that it performs a binary
-     * search on a sorted `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {*} value The value to search for.
-     * @returns {number} Returns the index of the matched value, else `-1`.
-     * @example
-     *
-     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
-     * // => 3
-     */
-    function sortedLastIndexOf(array, value) {
-      var length = array == null ? 0 : array.length;
-      if (length) {
-        var index = baseSortedIndex(array, value, true) - 1;
-        if (eq(array[index], value)) {
-          return index;
-        }
-      }
-      return -1;
-    }
-
-    /**
-     * This method is like `_.uniq` except that it's designed and optimized
-     * for sorted arrays.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @returns {Array} Returns the new duplicate free array.
-     * @example
-     *
-     * _.sortedUniq([1, 1, 2]);
-     * // => [1, 2]
-     */
-    function sortedUniq(array) {
-      return (array && array.length)
-        ? baseSortedUniq(array)
-        : [];
-    }
-
-    /**
-     * This method is like `_.uniqBy` except that it's designed and optimized
-     * for sorted arrays.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {Function} [iteratee] The iteratee invoked per element.
-     * @returns {Array} Returns the new duplicate free array.
-     * @example
-     *
-     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
-     * // => [1.1, 2.3]
-     */
-    function sortedUniqBy(array, iteratee) {
-      return (array && array.length)
-        ? baseSortedUniq(array, getIteratee(iteratee, 2))
-        : [];
-    }
-
-    /**
-     * Gets all but the first element of `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.tail([1, 2, 3]);
-     * // => [2, 3]
-     */
-    function tail(array) {
-      var length = array == null ? 0 : array.length;
-      return length ? baseSlice(array, 1, length) : [];
-    }
-
-    /**
-     * Creates a slice of `array` with `n` elements taken from the beginning.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to take.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.take([1, 2, 3]);
-     * // => [1]
-     *
-     * _.take([1, 2, 3], 2);
-     * // => [1, 2]
-     *
-     * _.take([1, 2, 3], 5);
-     * // => [1, 2, 3]
-     *
-     * _.take([1, 2, 3], 0);
-     * // => []
-     */
-    function take(array, n, guard) {
-      if (!(array && array.length)) {
-        return [];
-      }
-      n = (guard || n === undefined) ? 1 : toInteger(n);
-      return baseSlice(array, 0, n < 0 ? 0 : n);
-    }
-
-    /**
-     * Creates a slice of `array` with `n` elements taken from the end.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {number} [n=1] The number of elements to take.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * _.takeRight([1, 2, 3]);
-     * // => [3]
-     *
-     * _.takeRight([1, 2, 3], 2);
-     * // => [2, 3]
-     *
-     * _.takeRight([1, 2, 3], 5);
-     * // => [1, 2, 3]
-     *
-     * _.takeRight([1, 2, 3], 0);
-     * // => []
-     */
-    function takeRight(array, n, guard) {
-      var length = array == null ? 0 : array.length;
-      if (!length) {
-        return [];
-      }
-      n = (guard || n === undefined) ? 1 : toInteger(n);
-      n = length - n;
-      return baseSlice(array, n < 0 ? 0 : n, length);
-    }
-
-    /**
-     * Creates a slice of `array` with elements taken from the end. Elements are
-     * taken until `predicate` returns falsey. The predicate is invoked with
-     * three arguments: (value, index, array).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': true },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': false }
-     * ];
-     *
-     * _.takeRightWhile(users, function(o) { return !o.active; });
-     * // => objects for ['fred', 'pebbles']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
-     * // => objects for ['pebbles']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.takeRightWhile(users, ['active', false]);
-     * // => objects for ['fred', 'pebbles']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.takeRightWhile(users, 'active');
-     * // => []
-     */
-    function takeRightWhile(array, predicate) {
-      return (array && array.length)
-        ? baseWhile(array, getIteratee(predicate, 3), false, true)
-        : [];
-    }
-
-    /**
-     * Creates a slice of `array` with elements taken from the beginning. Elements
-     * are taken until `predicate` returns falsey. The predicate is invoked with
-     * three arguments: (value, index, array).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Array
-     * @param {Array} array The array to query.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the slice of `array`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'active': false },
-     *   { 'user': 'fred',    'active': false },
-     *   { 'user': 'pebbles', 'active': true }
-     * ];
-     *
-     * _.takeWhile(users, function(o) { return !o.active; });
-     * // => objects for ['barney', 'fred']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.takeWhile(users, { 'user': 'barney', 'active': false });
-     * // => objects for ['barney']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.takeWhile(users, ['active', false]);
-     * // => objects for ['barney', 'fred']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.takeWhile(users, 'active');
-     * // => []
-     */
-    function takeWhile(array, predicate) {
-      return (array && array.length)
-        ? baseWhile(array, getIteratee(predicate, 3))
-        : [];
-    }
-
-    /**
-     * Creates an array of unique values, in order, from all given arrays using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of combined values.
-     * @example
-     *
-     * _.union([2], [1, 2]);
-     * // => [2, 1]
-     */
-    var union = baseRest(function(arrays) {
-      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
-    });
-
-    /**
-     * This method is like `_.union` except that it accepts `iteratee` which is
-     * invoked for each element of each `arrays` to generate the criterion by
-     * which uniqueness is computed. Result values are chosen from the first
-     * array in which the value occurs. The iteratee is invoked with one argument:
-     * (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns the new array of combined values.
-     * @example
-     *
-     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
-     * // => [2.1, 1.2]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
-     * // => [{ 'x': 1 }, { 'x': 2 }]
-     */
-    var unionBy = baseRest(function(arrays) {
-      var iteratee = last(arrays);
-      if (isArrayLikeObject(iteratee)) {
-        iteratee = undefined;
-      }
-      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
-    });
-
-    /**
-     * This method is like `_.union` except that it accepts `comparator` which
-     * is invoked to compare elements of `arrays`. Result values are chosen from
-     * the first array in which the value occurs. The comparator is invoked
-     * with two arguments: (arrVal, othVal).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of combined values.
-     * @example
-     *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
-     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
-     *
-     * _.unionWith(objects, others, _.isEqual);
-     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
-     */
-    var unionWith = baseRest(function(arrays) {
-      var comparator = last(arrays);
-      comparator = typeof comparator == 'function' ? comparator : undefined;
-      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
-    });
-
-    /**
-     * Creates a duplicate-free version of an array, using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons, in which only the first occurrence of each element
-     * is kept. The order of result values is determined by the order they occur
-     * in the array.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @returns {Array} Returns the new duplicate free array.
-     * @example
-     *
-     * _.uniq([2, 1, 2]);
-     * // => [2, 1]
-     */
-    function uniq(array) {
-      return (array && array.length) ? baseUniq(array) : [];
-    }
-
-    /**
-     * This method is like `_.uniq` except that it accepts `iteratee` which is
-     * invoked for each element in `array` to generate the criterion by which
-     * uniqueness is computed. The order of result values is determined by the
-     * order they occur in the array. The iteratee is invoked with one argument:
-     * (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns the new duplicate free array.
-     * @example
-     *
-     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
-     * // => [2.1, 1.2]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
-     * // => [{ 'x': 1 }, { 'x': 2 }]
-     */
-    function uniqBy(array, iteratee) {
-      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
-    }
-
-    /**
-     * This method is like `_.uniq` except that it accepts `comparator` which
-     * is invoked to compare elements of `array`. The order of result values is
-     * determined by the order they occur in the array.The comparator is invoked
-     * with two arguments: (arrVal, othVal).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new duplicate free array.
-     * @example
-     *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
-     *
-     * _.uniqWith(objects, _.isEqual);
-     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
-     */
-    function uniqWith(array, comparator) {
-      comparator = typeof comparator == 'function' ? comparator : undefined;
-      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
-    }
-
-    /**
-     * This method is like `_.zip` except that it accepts an array of grouped
-     * elements and creates an array regrouping the elements to their pre-zip
-     * configuration.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.2.0
-     * @category Array
-     * @param {Array} array The array of grouped elements to process.
-     * @returns {Array} Returns the new array of regrouped elements.
-     * @example
-     *
-     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
-     * // => [['a', 1, true], ['b', 2, false]]
-     *
-     * _.unzip(zipped);
-     * // => [['a', 'b'], [1, 2], [true, false]]
-     */
-    function unzip(array) {
-      if (!(array && array.length)) {
-        return [];
-      }
-      var length = 0;
-      array = arrayFilter(array, function(group) {
-        if (isArrayLikeObject(group)) {
-          length = nativeMax(group.length, length);
-          return true;
-        }
-      });
-      return baseTimes(length, function(index) {
-        return arrayMap(array, baseProperty(index));
-      });
-    }
-
-    /**
-     * This method is like `_.unzip` except that it accepts `iteratee` to specify
-     * how regrouped values should be combined. The iteratee is invoked with the
-     * elements of each group: (...group).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.8.0
-     * @category Array
-     * @param {Array} array The array of grouped elements to process.
-     * @param {Function} [iteratee=_.identity] The function to combine
-     *  regrouped values.
-     * @returns {Array} Returns the new array of regrouped elements.
-     * @example
-     *
-     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
-     * // => [[1, 10, 100], [2, 20, 200]]
-     *
-     * _.unzipWith(zipped, _.add);
-     * // => [3, 30, 300]
-     */
-    function unzipWith(array, iteratee) {
-      if (!(array && array.length)) {
-        return [];
-      }
-      var result = unzip(array);
-      if (iteratee == null) {
-        return result;
-      }
-      return arrayMap(result, function(group) {
-        return apply(iteratee, undefined, group);
-      });
-    }
-
-    /**
-     * Creates an array excluding all given values using
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * for equality comparisons.
-     *
-     * **Note:** Unlike `_.pull`, this method returns a new array.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {Array} array The array to inspect.
-     * @param {...*} [values] The values to exclude.
-     * @returns {Array} Returns the new array of filtered values.
-     * @see _.difference, _.xor
-     * @example
-     *
-     * _.without([2, 1, 2, 3], 1, 2);
-     * // => [3]
-     */
-    var without = baseRest(function(array, values) {
-      return isArrayLikeObject(array)
-        ? baseDifference(array, values)
-        : [];
-    });
-
-    /**
-     * Creates an array of unique values that is the
-     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
-     * of the given arrays. The order of result values is determined by the order
-     * they occur in the arrays.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.4.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @returns {Array} Returns the new array of filtered values.
-     * @see _.difference, _.without
-     * @example
-     *
-     * _.xor([2, 1], [2, 3]);
-     * // => [1, 3]
-     */
-    var xor = baseRest(function(arrays) {
-      return baseXor(arrayFilter(arrays, isArrayLikeObject));
-    });
-
-    /**
-     * This method is like `_.xor` except that it accepts `iteratee` which is
-     * invoked for each element of each `arrays` to generate the criterion by
-     * which by which they're compared. The order of result values is determined
-     * by the order they occur in the arrays. The iteratee is invoked with one
-     * argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
-     * // => [1.2, 3.4]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
-     * // => [{ 'x': 2 }]
-     */
-    var xorBy = baseRest(function(arrays) {
-      var iteratee = last(arrays);
-      if (isArrayLikeObject(iteratee)) {
-        iteratee = undefined;
-      }
-      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
-    });
-
-    /**
-     * This method is like `_.xor` except that it accepts `comparator` which is
-     * invoked to compare elements of `arrays`. The order of result values is
-     * determined by the order they occur in the arrays. The comparator is invoked
-     * with two arguments: (arrVal, othVal).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to inspect.
-     * @param {Function} [comparator] The comparator invoked per element.
-     * @returns {Array} Returns the new array of filtered values.
-     * @example
-     *
-     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
-     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
-     *
-     * _.xorWith(objects, others, _.isEqual);
-     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
-     */
-    var xorWith = baseRest(function(arrays) {
-      var comparator = last(arrays);
-      comparator = typeof comparator == 'function' ? comparator : undefined;
-      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
-    });
-
-    /**
-     * Creates an array of grouped elements, the first of which contains the
-     * first elements of the given arrays, the second of which contains the
-     * second elements of the given arrays, and so on.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to process.
-     * @returns {Array} Returns the new array of grouped elements.
-     * @example
-     *
-     * _.zip(['a', 'b'], [1, 2], [true, false]);
-     * // => [['a', 1, true], ['b', 2, false]]
-     */
-    var zip = baseRest(unzip);
-
-    /**
-     * This method is like `_.fromPairs` except that it accepts two arrays,
-     * one of property identifiers and one of corresponding values.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.4.0
-     * @category Array
-     * @param {Array} [props=[]] The property identifiers.
-     * @param {Array} [values=[]] The property values.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * _.zipObject(['a', 'b'], [1, 2]);
-     * // => { 'a': 1, 'b': 2 }
-     */
-    function zipObject(props, values) {
-      return baseZipObject(props || [], values || [], assignValue);
-    }
-
-    /**
-     * This method is like `_.zipObject` except that it supports property paths.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.1.0
-     * @category Array
-     * @param {Array} [props=[]] The property identifiers.
-     * @param {Array} [values=[]] The property values.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
-     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
-     */
-    function zipObjectDeep(props, values) {
-      return baseZipObject(props || [], values || [], baseSet);
-    }
-
-    /**
-     * This method is like `_.zip` except that it accepts `iteratee` to specify
-     * how grouped values should be combined. The iteratee is invoked with the
-     * elements of each group: (...group).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.8.0
-     * @category Array
-     * @param {...Array} [arrays] The arrays to process.
-     * @param {Function} [iteratee=_.identity] The function to combine
-     *  grouped values.
-     * @returns {Array} Returns the new array of grouped elements.
-     * @example
-     *
-     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
-     *   return a + b + c;
-     * });
-     * // => [111, 222]
-     */
-    var zipWith = baseRest(function(arrays) {
-      var length = arrays.length,
-          iteratee = length > 1 ? arrays[length - 1] : undefined;
-
-      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
-      return unzipWith(arrays, iteratee);
-    });
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
-     * chain sequences enabled. The result of such sequences must be unwrapped
-     * with `_#value`.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.3.0
-     * @category Seq
-     * @param {*} value The value to wrap.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36 },
-     *   { 'user': 'fred',    'age': 40 },
-     *   { 'user': 'pebbles', 'age': 1 }
-     * ];
-     *
-     * var youngest = _
-     *   .chain(users)
-     *   .sortBy('age')
-     *   .map(function(o) {
-     *     return o.user + ' is ' + o.age;
-     *   })
-     *   .head()
-     *   .value();
-     * // => 'pebbles is 1'
-     */
-    function chain(value) {
-      var result = lodash(value);
-      result.__chain__ = true;
-      return result;
-    }
-
-    /**
-     * This method invokes `interceptor` and returns `value`. The interceptor
-     * is invoked with one argument; (value). The purpose of this method is to
-     * "tap into" a method chain sequence in order to modify intermediate results.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Seq
-     * @param {*} value The value to provide to `interceptor`.
-     * @param {Function} interceptor The function to invoke.
-     * @returns {*} Returns `value`.
-     * @example
-     *
-     * _([1, 2, 3])
-     *  .tap(function(array) {
-     *    // Mutate input array.
-     *    array.pop();
-     *  })
-     *  .reverse()
-     *  .value();
-     * // => [2, 1]
-     */
-    function tap(value, interceptor) {
-      interceptor(value);
-      return value;
-    }
-
-    /**
-     * This method is like `_.tap` except that it returns the result of `interceptor`.
-     * The purpose of this method is to "pass thru" values replacing intermediate
-     * results in a method chain sequence.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Seq
-     * @param {*} value The value to provide to `interceptor`.
-     * @param {Function} interceptor The function to invoke.
-     * @returns {*} Returns the result of `interceptor`.
-     * @example
-     *
-     * _('  abc  ')
-     *  .chain()
-     *  .trim()
-     *  .thru(function(value) {
-     *    return [value];
-     *  })
-     *  .value();
-     * // => ['abc']
-     */
-    function thru(value, interceptor) {
-      return interceptor(value);
-    }
-
-    /**
-     * This method is the wrapper version of `_.at`.
-     *
-     * @name at
-     * @memberOf _
-     * @since 1.0.0
-     * @category Seq
-     * @param {...(string|string[])} [paths] The property paths to pick.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
-     *
-     * _(object).at(['a[0].b.c', 'a[1]']).value();
-     * // => [3, 4]
-     */
-    var wrapperAt = flatRest(function(paths) {
-      var length = paths.length,
-          start = length ? paths[0] : 0,
-          value = this.__wrapped__,
-          interceptor = function(object) { return baseAt(object, paths); };
-
-      if (length > 1 || this.__actions__.length ||
-          !(value instanceof LazyWrapper) || !isIndex(start)) {
-        return this.thru(interceptor);
-      }
-      value = value.slice(start, +start + (length ? 1 : 0));
-      value.__actions__.push({
-        'func': thru,
-        'args': [interceptor],
-        'thisArg': undefined
-      });
-      return new LodashWrapper(value, this.__chain__).thru(function(array) {
-        if (length && !array.length) {
-          array.push(undefined);
-        }
-        return array;
-      });
-    });
-
-    /**
-     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
-     *
-     * @name chain
-     * @memberOf _
-     * @since 0.1.0
-     * @category Seq
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 }
-     * ];
-     *
-     * // A sequence without explicit chaining.
-     * _(users).head();
-     * // => { 'user': 'barney', 'age': 36 }
-     *
-     * // A sequence with explicit chaining.
-     * _(users)
-     *   .chain()
-     *   .head()
-     *   .pick('user')
-     *   .value();
-     * // => { 'user': 'barney' }
-     */
-    function wrapperChain() {
-      return chain(this);
-    }
-
-    /**
-     * Executes the chain sequence and returns the wrapped result.
-     *
-     * @name commit
-     * @memberOf _
-     * @since 3.2.0
-     * @category Seq
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var array = [1, 2];
-     * var wrapped = _(array).push(3);
-     *
-     * console.log(array);
-     * // => [1, 2]
-     *
-     * wrapped = wrapped.commit();
-     * console.log(array);
-     * // => [1, 2, 3]
-     *
-     * wrapped.last();
-     * // => 3
-     *
-     * console.log(array);
-     * // => [1, 2, 3]
-     */
-    function wrapperCommit() {
-      return new LodashWrapper(this.value(), this.__chain__);
-    }
-
-    /**
-     * Gets the next value on a wrapped object following the
-     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
-     *
-     * @name next
-     * @memberOf _
-     * @since 4.0.0
-     * @category Seq
-     * @returns {Object} Returns the next iterator value.
-     * @example
-     *
-     * var wrapped = _([1, 2]);
-     *
-     * wrapped.next();
-     * // => { 'done': false, 'value': 1 }
-     *
-     * wrapped.next();
-     * // => { 'done': false, 'value': 2 }
-     *
-     * wrapped.next();
-     * // => { 'done': true, 'value': undefined }
-     */
-    function wrapperNext() {
-      if (this.__values__ === undefined) {
-        this.__values__ = toArray(this.value());
-      }
-      var done = this.__index__ >= this.__values__.length,
-          value = done ? undefined : this.__values__[this.__index__++];
-
-      return { 'done': done, 'value': value };
-    }
-
-    /**
-     * Enables the wrapper to be iterable.
-     *
-     * @name Symbol.iterator
-     * @memberOf _
-     * @since 4.0.0
-     * @category Seq
-     * @returns {Object} Returns the wrapper object.
-     * @example
-     *
-     * var wrapped = _([1, 2]);
-     *
-     * wrapped[Symbol.iterator]() === wrapped;
-     * // => true
-     *
-     * Array.from(wrapped);
-     * // => [1, 2]
-     */
-    function wrapperToIterator() {
-      return this;
-    }
-
-    /**
-     * Creates a clone of the chain sequence planting `value` as the wrapped value.
-     *
-     * @name plant
-     * @memberOf _
-     * @since 3.2.0
-     * @category Seq
-     * @param {*} value The value to plant.
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var wrapped = _([1, 2]).map(square);
-     * var other = wrapped.plant([3, 4]);
-     *
-     * other.value();
-     * // => [9, 16]
-     *
-     * wrapped.value();
-     * // => [1, 4]
-     */
-    function wrapperPlant(value) {
-      var result,
-          parent = this;
-
-      while (parent instanceof baseLodash) {
-        var clone = wrapperClone(parent);
-        clone.__index__ = 0;
-        clone.__values__ = undefined;
-        if (result) {
-          previous.__wrapped__ = clone;
-        } else {
-          result = clone;
-        }
-        var previous = clone;
-        parent = parent.__wrapped__;
-      }
-      previous.__wrapped__ = value;
-      return result;
-    }
-
-    /**
-     * This method is the wrapper version of `_.reverse`.
-     *
-     * **Note:** This method mutates the wrapped array.
-     *
-     * @name reverse
-     * @memberOf _
-     * @since 0.1.0
-     * @category Seq
-     * @returns {Object} Returns the new `lodash` wrapper instance.
-     * @example
-     *
-     * var array = [1, 2, 3];
-     *
-     * _(array).reverse().value()
-     * // => [3, 2, 1]
-     *
-     * console.log(array);
-     * // => [3, 2, 1]
-     */
-    function wrapperReverse() {
-      var value = this.__wrapped__;
-      if (value instanceof LazyWrapper) {
-        var wrapped = value;
-        if (this.__actions__.length) {
-          wrapped = new LazyWrapper(this);
-        }
-        wrapped = wrapped.reverse();
-        wrapped.__actions__.push({
-          'func': thru,
-          'args': [reverse],
-          'thisArg': undefined
-        });
-        return new LodashWrapper(wrapped, this.__chain__);
-      }
-      return this.thru(reverse);
-    }
-
-    /**
-     * Executes the chain sequence to resolve the unwrapped value.
-     *
-     * @name value
-     * @memberOf _
-     * @since 0.1.0
-     * @alias toJSON, valueOf
-     * @category Seq
-     * @returns {*} Returns the resolved unwrapped value.
-     * @example
-     *
-     * _([1, 2, 3]).value();
-     * // => [1, 2, 3]
-     */
-    function wrapperValue() {
-      return baseWrapperValue(this.__wrapped__, this.__actions__);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` thru `iteratee`. The corresponding value of
-     * each key is the number of times the key was returned by `iteratee`. The
-     * iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.5.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * _.countBy([6.1, 4.2, 6.3], Math.floor);
-     * // => { '4': 1, '6': 2 }
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.countBy(['one', 'two', 'three'], 'length');
-     * // => { '3': 2, '5': 1 }
-     */
-    var countBy = createAggregator(function(result, value, key) {
-      if (hasOwnProperty.call(result, key)) {
-        ++result[key];
-      } else {
-        baseAssignValue(result, key, 1);
-      }
-    });
-
-    /**
-     * Checks if `predicate` returns truthy for **all** elements of `collection`.
-     * Iteration is stopped once `predicate` returns falsey. The predicate is
-     * invoked with three arguments: (value, index|key, collection).
-     *
-     * **Note:** This method returns `true` for
-     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
-     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
-     * elements of empty collections.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {boolean} Returns `true` if all elements pass the predicate check,
-     *  else `false`.
-     * @example
-     *
-     * _.every([true, 1, null, 'yes'], Boolean);
-     * // => false
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': false },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.every(users, { 'user': 'barney', 'active': false });
-     * // => false
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.every(users, ['active', false]);
-     * // => true
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.every(users, 'active');
-     * // => false
-     */
-    function every(collection, predicate, guard) {
-      var func = isArray(collection) ? arrayEvery : baseEvery;
-      if (guard && isIterateeCall(collection, predicate, guard)) {
-        predicate = undefined;
-      }
-      return func(collection, getIteratee(predicate, 3));
-    }
-
-    /**
-     * Iterates over elements of `collection`, returning an array of all elements
-     * `predicate` returns truthy for. The predicate is invoked with three
-     * arguments: (value, index|key, collection).
-     *
-     * **Note:** Unlike `_.remove`, this method returns a new array.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new filtered array.
-     * @see _.reject
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': true },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * _.filter(users, function(o) { return !o.active; });
-     * // => objects for ['fred']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.filter(users, { 'age': 36, 'active': true });
-     * // => objects for ['barney']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.filter(users, ['active', false]);
-     * // => objects for ['fred']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.filter(users, 'active');
-     * // => objects for ['barney']
-     */
-    function filter(collection, predicate) {
-      var func = isArray(collection) ? arrayFilter : baseFilter;
-      return func(collection, getIteratee(predicate, 3));
-    }
-
-    /**
-     * Iterates over elements of `collection`, returning the first element
-     * `predicate` returns truthy for. The predicate is invoked with three
-     * arguments: (value, index|key, collection).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param {number} [fromIndex=0] The index to search from.
-     * @returns {*} Returns the matched element, else `undefined`.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36, 'active': true },
-     *   { 'user': 'fred',    'age': 40, 'active': false },
-     *   { 'user': 'pebbles', 'age': 1,  'active': true }
-     * ];
-     *
-     * _.find(users, function(o) { return o.age < 40; });
-     * // => object for 'barney'
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.find(users, { 'age': 1, 'active': true });
-     * // => object for 'pebbles'
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.find(users, ['active', false]);
-     * // => object for 'fred'
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.find(users, 'active');
-     * // => object for 'barney'
-     */
-    var find = createFind(findIndex);
-
-    /**
-     * This method is like `_.find` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param {number} [fromIndex=collection.length-1] The index to search from.
-     * @returns {*} Returns the matched element, else `undefined`.
-     * @example
-     *
-     * _.findLast([1, 2, 3, 4], function(n) {
-     *   return n % 2 == 1;
-     * });
-     * // => 3
-     */
-    var findLast = createFind(findLastIndex);
-
-    /**
-     * Creates a flattened array of values by running each element in `collection`
-     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
-     * with three arguments: (value, index|key, collection).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * function duplicate(n) {
-     *   return [n, n];
-     * }
-     *
-     * _.flatMap([1, 2], duplicate);
-     * // => [1, 1, 2, 2]
-     */
-    function flatMap(collection, iteratee) {
-      return baseFlatten(map(collection, iteratee), 1);
-    }
-
-    /**
-     * This method is like `_.flatMap` except that it recursively flattens the
-     * mapped results.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.7.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * function duplicate(n) {
-     *   return [[[n, n]]];
-     * }
-     *
-     * _.flatMapDeep([1, 2], duplicate);
-     * // => [1, 1, 2, 2]
-     */
-    function flatMapDeep(collection, iteratee) {
-      return baseFlatten(map(collection, iteratee), INFINITY);
-    }
-
-    /**
-     * This method is like `_.flatMap` except that it recursively flattens the
-     * mapped results up to `depth` times.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.7.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {number} [depth=1] The maximum recursion depth.
-     * @returns {Array} Returns the new flattened array.
-     * @example
-     *
-     * function duplicate(n) {
-     *   return [[[n, n]]];
-     * }
-     *
-     * _.flatMapDepth([1, 2], duplicate, 2);
-     * // => [[1, 1], [2, 2]]
-     */
-    function flatMapDepth(collection, iteratee, depth) {
-      depth = depth === undefined ? 1 : toInteger(depth);
-      return baseFlatten(map(collection, iteratee), depth);
-    }
-
-    /**
-     * Iterates over elements of `collection` and invokes `iteratee` for each element.
-     * The iteratee is invoked with three arguments: (value, index|key, collection).
-     * Iteratee functions may exit iteration early by explicitly returning `false`.
-     *
-     * **Note:** As with other "Collections" methods, objects with a "length"
-     * property are iterated like arrays. To avoid this behavior use `_.forIn`
-     * or `_.forOwn` for object iteration.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @alias each
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array|Object} Returns `collection`.
-     * @see _.forEachRight
-     * @example
-     *
-     * _.forEach([1, 2], function(value) {
-     *   console.log(value);
-     * });
-     * // => Logs `1` then `2`.
-     *
-     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
-     */
-    function forEach(collection, iteratee) {
-      var func = isArray(collection) ? arrayEach : baseEach;
-      return func(collection, getIteratee(iteratee, 3));
-    }
-
-    /**
-     * This method is like `_.forEach` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @alias eachRight
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array|Object} Returns `collection`.
-     * @see _.forEach
-     * @example
-     *
-     * _.forEachRight([1, 2], function(value) {
-     *   console.log(value);
-     * });
-     * // => Logs `2` then `1`.
-     */
-    function forEachRight(collection, iteratee) {
-      var func = isArray(collection) ? arrayEachRight : baseEachRight;
-      return func(collection, getIteratee(iteratee, 3));
-    }
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` thru `iteratee`. The order of grouped values
-     * is determined by the order they occur in `collection`. The corresponding
-     * value of each key is an array of elements responsible for generating the
-     * key. The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
-     * // => { '4': [4.2], '6': [6.1, 6.3] }
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.groupBy(['one', 'two', 'three'], 'length');
-     * // => { '3': ['one', 'two'], '5': ['three'] }
-     */
-    var groupBy = createAggregator(function(result, value, key) {
-      if (hasOwnProperty.call(result, key)) {
-        result[key].push(value);
-      } else {
-        baseAssignValue(result, key, [value]);
-      }
-    });
-
-    /**
-     * Checks if `value` is in `collection`. If `collection` is a string, it's
-     * checked for a substring of `value`, otherwise
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * is used for equality comparisons. If `fromIndex` is negative, it's used as
-     * the offset from the end of `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to inspect.
-     * @param {*} value The value to search for.
-     * @param {number} [fromIndex=0] The index to search from.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
-     * @returns {boolean} Returns `true` if `value` is found, else `false`.
-     * @example
-     *
-     * _.includes([1, 2, 3], 1);
-     * // => true
-     *
-     * _.includes([1, 2, 3], 1, 2);
-     * // => false
-     *
-     * _.includes({ 'a': 1, 'b': 2 }, 1);
-     * // => true
-     *
-     * _.includes('abcd', 'bc');
-     * // => true
-     */
-    function includes(collection, value, fromIndex, guard) {
-      collection = isArrayLike(collection) ? collection : values(collection);
-      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
-
-      var length = collection.length;
-      if (fromIndex < 0) {
-        fromIndex = nativeMax(length + fromIndex, 0);
-      }
-      return isString(collection)
-        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
-        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
-    }
-
-    /**
-     * Invokes the method at `path` of each element in `collection`, returning
-     * an array of the results of each invoked method. Any additional arguments
-     * are provided to each invoked method. If `path` is a function, it's invoked
-     * for, and `this` bound to, each element in `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Array|Function|string} path The path of the method to invoke or
-     *  the function invoked per iteration.
-     * @param {...*} [args] The arguments to invoke each method with.
-     * @returns {Array} Returns the array of results.
-     * @example
-     *
-     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
-     * // => [[1, 5, 7], [1, 2, 3]]
-     *
-     * _.invokeMap([123, 456], String.prototype.split, '');
-     * // => [['1', '2', '3'], ['4', '5', '6']]
-     */
-    var invokeMap = baseRest(function(collection, path, args) {
-      var index = -1,
-          isFunc = typeof path == 'function',
-          result = isArrayLike(collection) ? Array(collection.length) : [];
-
-      baseEach(collection, function(value) {
-        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
-      });
-      return result;
-    });
-
-    /**
-     * Creates an object composed of keys generated from the results of running
-     * each element of `collection` thru `iteratee`. The corresponding value of
-     * each key is the last element responsible for generating the key. The
-     * iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
-     * @returns {Object} Returns the composed aggregate object.
-     * @example
-     *
-     * var array = [
-     *   { 'dir': 'left', 'code': 97 },
-     *   { 'dir': 'right', 'code': 100 }
-     * ];
-     *
-     * _.keyBy(array, function(o) {
-     *   return String.fromCharCode(o.code);
-     * });
-     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
-     *
-     * _.keyBy(array, 'dir');
-     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
-     */
-    var keyBy = createAggregator(function(result, value, key) {
-      baseAssignValue(result, key, value);
-    });
-
-    /**
-     * Creates an array of values by running each element in `collection` thru
-     * `iteratee`. The iteratee is invoked with three arguments:
-     * (value, index|key, collection).
-     *
-     * Many lodash methods are guarded to work as iteratees for methods like
-     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
-     *
-     * The guarded methods are:
-     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
-     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
-     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
-     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new mapped array.
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * _.map([4, 8], square);
-     * // => [16, 64]
-     *
-     * _.map({ 'a': 4, 'b': 8 }, square);
-     * // => [16, 64] (iteration order is not guaranteed)
-     *
-     * var users = [
-     *   { 'user': 'barney' },
-     *   { 'user': 'fred' }
-     * ];
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.map(users, 'user');
-     * // => ['barney', 'fred']
-     */
-    function map(collection, iteratee) {
-      var func = isArray(collection) ? arrayMap : baseMap;
-      return func(collection, getIteratee(iteratee, 3));
-    }
-
-    /**
-     * This method is like `_.sortBy` except that it allows specifying the sort
-     * orders of the iteratees to sort by. If `orders` is unspecified, all values
-     * are sorted in ascending order. Otherwise, specify an order of "desc" for
-     * descending or "asc" for ascending sort order of corresponding values.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
-     *  The iteratees to sort by.
-     * @param {string[]} [orders] The sort orders of `iteratees`.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
-     * @returns {Array} Returns the new sorted array.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'fred',   'age': 48 },
-     *   { 'user': 'barney', 'age': 34 },
-     *   { 'user': 'fred',   'age': 40 },
-     *   { 'user': 'barney', 'age': 36 }
-     * ];
-     *
-     * // Sort by `user` in ascending order and by `age` in descending order.
-     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
-     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
-     */
-    function orderBy(collection, iteratees, orders, guard) {
-      if (collection == null) {
-        return [];
-      }
-      if (!isArray(iteratees)) {
-        iteratees = iteratees == null ? [] : [iteratees];
-      }
-      orders = guard ? undefined : orders;
-      if (!isArray(orders)) {
-        orders = orders == null ? [] : [orders];
-      }
-      return baseOrderBy(collection, iteratees, orders);
-    }
-
-    /**
-     * Creates an array of elements split into two groups, the first of which
-     * contains elements `predicate` returns truthy for, the second of which
-     * contains elements `predicate` returns falsey for. The predicate is
-     * invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the array of grouped elements.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney',  'age': 36, 'active': false },
-     *   { 'user': 'fred',    'age': 40, 'active': true },
-     *   { 'user': 'pebbles', 'age': 1,  'active': false }
-     * ];
-     *
-     * _.partition(users, function(o) { return o.active; });
-     * // => objects for [['fred'], ['barney', 'pebbles']]
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.partition(users, { 'age': 1, 'active': false });
-     * // => objects for [['pebbles'], ['barney', 'fred']]
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.partition(users, ['active', false]);
-     * // => objects for [['barney', 'pebbles'], ['fred']]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.partition(users, 'active');
-     * // => objects for [['fred'], ['barney', 'pebbles']]
-     */
-    var partition = createAggregator(function(result, value, key) {
-      result[key ? 0 : 1].push(value);
-    }, function() { return [[], []]; });
-
-    /**
-     * Reduces `collection` to a value which is the accumulated result of running
-     * each element in `collection` thru `iteratee`, where each successive
-     * invocation is supplied the return value of the previous. If `accumulator`
-     * is not given, the first element of `collection` is used as the initial
-     * value. The iteratee is invoked with four arguments:
-     * (accumulator, value, index|key, collection).
-     *
-     * Many lodash methods are guarded to work as iteratees for methods like
-     * `_.reduce`, `_.reduceRight`, and `_.transform`.
-     *
-     * The guarded methods are:
-     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
-     * and `sortBy`
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @returns {*} Returns the accumulated value.
-     * @see _.reduceRight
-     * @example
-     *
-     * _.reduce([1, 2], function(sum, n) {
-     *   return sum + n;
-     * }, 0);
-     * // => 3
-     *
-     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
-     *   (result[value] || (result[value] = [])).push(key);
-     *   return result;
-     * }, {});
-     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
-     */
-    function reduce(collection, iteratee, accumulator) {
-      var func = isArray(collection) ? arrayReduce : baseReduce,
-          initAccum = arguments.length < 3;
-
-      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
-    }
-
-    /**
-     * This method is like `_.reduce` except that it iterates over elements of
-     * `collection` from right to left.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The initial value.
-     * @returns {*} Returns the accumulated value.
-     * @see _.reduce
-     * @example
-     *
-     * var array = [[0, 1], [2, 3], [4, 5]];
-     *
-     * _.reduceRight(array, function(flattened, other) {
-     *   return flattened.concat(other);
-     * }, []);
-     * // => [4, 5, 2, 3, 0, 1]
-     */
-    function reduceRight(collection, iteratee, accumulator) {
-      var func = isArray(collection) ? arrayReduceRight : baseReduce,
-          initAccum = arguments.length < 3;
-
-      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
-    }
-
-    /**
-     * The opposite of `_.filter`; this method returns the elements of `collection`
-     * that `predicate` does **not** return truthy for.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the new filtered array.
-     * @see _.filter
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': false },
-     *   { 'user': 'fred',   'age': 40, 'active': true }
-     * ];
-     *
-     * _.reject(users, function(o) { return !o.active; });
-     * // => objects for ['fred']
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.reject(users, { 'age': 40, 'active': true });
-     * // => objects for ['barney']
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.reject(users, ['active', false]);
-     * // => objects for ['fred']
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.reject(users, 'active');
-     * // => objects for ['barney']
-     */
-    function reject(collection, predicate) {
-      var func = isArray(collection) ? arrayFilter : baseFilter;
-      return func(collection, negate(getIteratee(predicate, 3)));
-    }
-
-    /**
-     * Gets a random element from `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to sample.
-     * @returns {*} Returns the random element.
-     * @example
-     *
-     * _.sample([1, 2, 3, 4]);
-     * // => 2
-     */
-    function sample(collection) {
-      var func = isArray(collection) ? arraySample : baseSample;
-      return func(collection);
-    }
-
-    /**
-     * Gets `n` random elements at unique keys from `collection` up to the
-     * size of `collection`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to sample.
-     * @param {number} [n=1] The number of elements to sample.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the random elements.
-     * @example
-     *
-     * _.sampleSize([1, 2, 3], 2);
-     * // => [3, 1]
-     *
-     * _.sampleSize([1, 2, 3], 4);
-     * // => [2, 3, 1]
-     */
-    function sampleSize(collection, n, guard) {
-      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
-        n = 1;
-      } else {
-        n = toInteger(n);
-      }
-      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
-      return func(collection, n);
-    }
-
-    /**
-     * Creates an array of shuffled values, using a version of the
-     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to shuffle.
-     * @returns {Array} Returns the new shuffled array.
-     * @example
-     *
-     * _.shuffle([1, 2, 3, 4]);
-     * // => [4, 1, 3, 2]
-     */
-    function shuffle(collection) {
-      var func = isArray(collection) ? arrayShuffle : baseShuffle;
-      return func(collection);
-    }
-
-    /**
-     * Gets the size of `collection` by returning its length for array-like
-     * values or the number of own enumerable string keyed properties for objects.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object|string} collection The collection to inspect.
-     * @returns {number} Returns the collection size.
-     * @example
-     *
-     * _.size([1, 2, 3]);
-     * // => 3
-     *
-     * _.size({ 'a': 1, 'b': 2 });
-     * // => 2
-     *
-     * _.size('pebbles');
-     * // => 7
-     */
-    function size(collection) {
-      if (collection == null) {
-        return 0;
-      }
-      if (isArrayLike(collection)) {
-        return isString(collection) ? stringSize(collection) : collection.length;
-      }
-      var tag = getTag(collection);
-      if (tag == mapTag || tag == setTag) {
-        return collection.size;
-      }
-      return baseKeys(collection).length;
-    }
-
-    /**
-     * Checks if `predicate` returns truthy for **any** element of `collection`.
-     * Iteration is stopped once `predicate` returns truthy. The predicate is
-     * invoked with three arguments: (value, index|key, collection).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {boolean} Returns `true` if any element passes the predicate check,
-     *  else `false`.
-     * @example
-     *
-     * _.some([null, 0, 'yes', false], Boolean);
-     * // => true
-     *
-     * var users = [
-     *   { 'user': 'barney', 'active': true },
-     *   { 'user': 'fred',   'active': false }
-     * ];
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.some(users, { 'user': 'barney', 'active': false });
-     * // => false
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.some(users, ['active', false]);
-     * // => true
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.some(users, 'active');
-     * // => true
-     */
-    function some(collection, predicate, guard) {
-      var func = isArray(collection) ? arraySome : baseSome;
-      if (guard && isIterateeCall(collection, predicate, guard)) {
-        predicate = undefined;
-      }
-      return func(collection, getIteratee(predicate, 3));
-    }
-
-    /**
-     * Creates an array of elements, sorted in ascending order by the results of
-     * running each element in a collection thru each iteratee. This method
-     * performs a stable sort, that is, it preserves the original sort order of
-     * equal elements. The iteratees are invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Collection
-     * @param {Array|Object} collection The collection to iterate over.
-     * @param {...(Function|Function[])} [iteratees=[_.identity]]
-     *  The iteratees to sort by.
-     * @returns {Array} Returns the new sorted array.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'fred',   'age': 48 },
-     *   { 'user': 'barney', 'age': 36 },
-     *   { 'user': 'fred',   'age': 40 },
-     *   { 'user': 'barney', 'age': 34 }
-     * ];
-     *
-     * _.sortBy(users, [function(o) { return o.user; }]);
-     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
-     *
-     * _.sortBy(users, ['user', 'age']);
-     * // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
-     */
-    var sortBy = baseRest(function(collection, iteratees) {
-      if (collection == null) {
-        return [];
-      }
-      var length = iteratees.length;
-      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
-        iteratees = [];
-      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
-        iteratees = [iteratees[0]];
-      }
-      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
-    });
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Gets the timestamp of the number of milliseconds that have elapsed since
-     * the Unix epoch (1 January 1970 00:00:00 UTC).
-     *
-     * @static
-     * @memberOf _
-     * @since 2.4.0
-     * @category Date
-     * @returns {number} Returns the timestamp.
-     * @example
-     *
-     * _.defer(function(stamp) {
-     *   console.log(_.now() - stamp);
-     * }, _.now());
-     * // => Logs the number of milliseconds it took for the deferred invocation.
-     */
-    var now = ctxNow || function() {
-      return root.Date.now();
-    };
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * The opposite of `_.before`; this method creates a function that invokes
-     * `func` once it's called `n` or more times.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {number} n The number of calls before `func` is invoked.
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * var saves = ['profile', 'settings'];
-     *
-     * var done = _.after(saves.length, function() {
-     *   console.log('done saving!');
-     * });
-     *
-     * _.forEach(saves, function(type) {
-     *   asyncSave({ 'type': type, 'complete': done });
-     * });
-     * // => Logs 'done saving!' after the two async saves have completed.
-     */
-    function after(n, func) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      n = toInteger(n);
-      return function() {
-        if (--n < 1) {
-          return func.apply(this, arguments);
-        }
-      };
-    }
-
-    /**
-     * Creates a function that invokes `func`, with up to `n` arguments,
-     * ignoring any additional arguments.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Function
-     * @param {Function} func The function to cap arguments for.
-     * @param {number} [n=func.length] The arity cap.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Function} Returns the new capped function.
-     * @example
-     *
-     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
-     * // => [6, 8, 10]
-     */
-    function ary(func, n, guard) {
-      n = guard ? undefined : n;
-      n = (func && n == null) ? func.length : n;
-      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
-    }
-
-    /**
-     * Creates a function that invokes `func`, with the `this` binding and arguments
-     * of the created function, while it's called less than `n` times. Subsequent
-     * calls to the created function return the result of the last `func` invocation.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Function
-     * @param {number} n The number of calls at which `func` is no longer invoked.
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * jQuery(element).on('click', _.before(5, addContactToList));
-     * // => Allows adding up to 4 contacts to the list.
-     */
-    function before(n, func) {
-      var result;
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      n = toInteger(n);
-      return function() {
-        if (--n > 0) {
-          result = func.apply(this, arguments);
-        }
-        if (n <= 1) {
-          func = undefined;
-        }
-        return result;
-      };
-    }
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of `thisArg`
-     * and `partials` prepended to the arguments it receives.
-     *
-     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
-     * may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
-     * property of bound functions.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to bind.
-     * @param {*} thisArg The `this` binding of `func`.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new bound function.
-     * @example
-     *
-     * function greet(greeting, punctuation) {
-     *   return greeting + ' ' + this.user + punctuation;
-     * }
-     *
-     * var object = { 'user': 'fred' };
-     *
-     * var bound = _.bind(greet, object, 'hi');
-     * bound('!');
-     * // => 'hi fred!'
-     *
-     * // Bound with placeholders.
-     * var bound = _.bind(greet, object, _, '!');
-     * bound('hi');
-     * // => 'hi fred!'
-     */
-    var bind = baseRest(function(func, thisArg, partials) {
-      var bitmask = WRAP_BIND_FLAG;
-      if (partials.length) {
-        var holders = replaceHolders(partials, getHolder(bind));
-        bitmask |= WRAP_PARTIAL_FLAG;
-      }
-      return createWrap(func, bitmask, thisArg, partials, holders);
-    });
-
-    /**
-     * Creates a function that invokes the method at `object[key]` with `partials`
-     * prepended to the arguments it receives.
-     *
-     * This method differs from `_.bind` by allowing bound functions to reference
-     * methods that may be redefined or don't yet exist. See
-     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
-     * for more details.
-     *
-     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.10.0
-     * @category Function
-     * @param {Object} object The object to invoke the method on.
-     * @param {string} key The key of the method.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new bound function.
-     * @example
-     *
-     * var object = {
-     *   'user': 'fred',
-     *   'greet': function(greeting, punctuation) {
-     *     return greeting + ' ' + this.user + punctuation;
-     *   }
-     * };
-     *
-     * var bound = _.bindKey(object, 'greet', 'hi');
-     * bound('!');
-     * // => 'hi fred!'
-     *
-     * object.greet = function(greeting, punctuation) {
-     *   return greeting + 'ya ' + this.user + punctuation;
-     * };
-     *
-     * bound('!');
-     * // => 'hiya fred!'
-     *
-     * // Bound with placeholders.
-     * var bound = _.bindKey(object, 'greet', _, '!');
-     * bound('hi');
-     * // => 'hiya fred!'
-     */
-    var bindKey = baseRest(function(object, key, partials) {
-      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
-      if (partials.length) {
-        var holders = replaceHolders(partials, getHolder(bindKey));
-        bitmask |= WRAP_PARTIAL_FLAG;
-      }
-      return createWrap(key, bitmask, object, partials, holders);
-    });
-
-    /**
-     * Creates a function that accepts arguments of `func` and either invokes
-     * `func` returning its result, if at least `arity` number of arguments have
-     * been provided, or returns a function that accepts the remaining `func`
-     * arguments, and so on. The arity of `func` may be specified if `func.length`
-     * is not sufficient.
-     *
-     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
-     * may be used as a placeholder for provided arguments.
-     *
-     * **Note:** This method doesn't set the "length" property of curried functions.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Function
-     * @param {Function} func The function to curry.
-     * @param {number} [arity=func.length] The arity of `func`.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Function} Returns the new curried function.
-     * @example
-     *
-     * var abc = function(a, b, c) {
-     *   return [a, b, c];
-     * };
-     *
-     * var curried = _.curry(abc);
-     *
-     * curried(1)(2)(3);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2)(3);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2, 3);
-     * // => [1, 2, 3]
-     *
-     * // Curried with placeholders.
-     * curried(1)(_, 3)(2);
-     * // => [1, 2, 3]
-     */
-    function curry(func, arity, guard) {
-      arity = guard ? undefined : arity;
-      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
-      result.placeholder = curry.placeholder;
-      return result;
-    }
-
-    /**
-     * This method is like `_.curry` except that arguments are applied to `func`
-     * in the manner of `_.partialRight` instead of `_.partial`.
-     *
-     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for provided arguments.
-     *
-     * **Note:** This method doesn't set the "length" property of curried functions.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Function
-     * @param {Function} func The function to curry.
-     * @param {number} [arity=func.length] The arity of `func`.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Function} Returns the new curried function.
-     * @example
-     *
-     * var abc = function(a, b, c) {
-     *   return [a, b, c];
-     * };
-     *
-     * var curried = _.curryRight(abc);
-     *
-     * curried(3)(2)(1);
-     * // => [1, 2, 3]
-     *
-     * curried(2, 3)(1);
-     * // => [1, 2, 3]
-     *
-     * curried(1, 2, 3);
-     * // => [1, 2, 3]
-     *
-     * // Curried with placeholders.
-     * curried(3)(1, _)(2);
-     * // => [1, 2, 3]
-     */
-    function curryRight(func, arity, guard) {
-      arity = guard ? undefined : arity;
-      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
-      result.placeholder = curryRight.placeholder;
-      return result;
-    }
-
-    /**
-     * Creates a debounced function that delays invoking `func` until after `wait`
-     * milliseconds have elapsed since the last time the debounced function was
-     * invoked. The debounced function comes with a `cancel` method to cancel
-     * delayed `func` invocations and a `flush` method to immediately invoke them.
-     * Provide `options` to indicate whether `func` should be invoked on the
-     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
-     * with the last arguments provided to the debounced function. Subsequent
-     * calls to the debounced function return the result of the last `func`
-     * invocation.
-     *
-     * **Note:** If `leading` and `trailing` options are `true`, `func` is
-     * invoked on the trailing edge of the timeout only if the debounced function
-     * is invoked more than once during the `wait` timeout.
-     *
-     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
-     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
-     *
-     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
-     * for details over the differences between `_.debounce` and `_.throttle`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to debounce.
-     * @param {number} [wait=0] The number of milliseconds to delay.
-     * @param {Object} [options={}] The options object.
-     * @param {boolean} [options.leading=false]
-     *  Specify invoking on the leading edge of the timeout.
-     * @param {number} [options.maxWait]
-     *  The maximum time `func` is allowed to be delayed before it's invoked.
-     * @param {boolean} [options.trailing=true]
-     *  Specify invoking on the trailing edge of the timeout.
-     * @returns {Function} Returns the new debounced function.
-     * @example
-     *
-     * // Avoid costly calculations while the window size is in flux.
-     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
-     *
-     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
-     * jQuery(element).on('click', _.debounce(sendMail, 300, {
-     *   'leading': true,
-     *   'trailing': false
-     * }));
-     *
-     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
-     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
-     * var source = new EventSource('/stream');
-     * jQuery(source).on('message', debounced);
-     *
-     * // Cancel the trailing debounced invocation.
-     * jQuery(window).on('popstate', debounced.cancel);
-     */
-    function debounce(func, wait, options) {
-      var lastArgs,
-          lastThis,
-          maxWait,
-          result,
-          timerId,
-          lastCallTime,
-          lastInvokeTime = 0,
-          leading = false,
-          maxing = false,
-          trailing = true;
-
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      wait = toNumber(wait) || 0;
-      if (isObject(options)) {
-        leading = !!options.leading;
-        maxing = 'maxWait' in options;
-        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-      }
-
-      function invokeFunc(time) {
-        var args = lastArgs,
-            thisArg = lastThis;
-
-        lastArgs = lastThis = undefined;
-        lastInvokeTime = time;
-        result = func.apply(thisArg, args);
-        return result;
-      }
-
-      function leadingEdge(time) {
-        // Reset any `maxWait` timer.
-        lastInvokeTime = time;
-        // Start the timer for the trailing edge.
-        timerId = setTimeout(timerExpired, wait);
-        // Invoke the leading edge.
-        return leading ? invokeFunc(time) : result;
-      }
-
-      function remainingWait(time) {
-        var timeSinceLastCall = time - lastCallTime,
-            timeSinceLastInvoke = time - lastInvokeTime,
-            timeWaiting = wait - timeSinceLastCall;
-
-        return maxing
-          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
-          : timeWaiting;
-      }
-
-      function shouldInvoke(time) {
-        var timeSinceLastCall = time - lastCallTime,
-            timeSinceLastInvoke = time - lastInvokeTime;
-
-        // Either this is the first call, activity has stopped and we're at the
-        // trailing edge, the system time has gone backwards and we're treating
-        // it as the trailing edge, or we've hit the `maxWait` limit.
-        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
-          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
-      }
-
-      function timerExpired() {
-        var time = now();
-        if (shouldInvoke(time)) {
-          return trailingEdge(time);
-        }
-        // Restart the timer.
-        timerId = setTimeout(timerExpired, remainingWait(time));
-      }
-
-      function trailingEdge(time) {
-        timerId = undefined;
-
-        // Only invoke if we have `lastArgs` which means `func` has been
-        // debounced at least once.
-        if (trailing && lastArgs) {
-          return invokeFunc(time);
-        }
-        lastArgs = lastThis = undefined;
-        return result;
-      }
-
-      function cancel() {
-        if (timerId !== undefined) {
-          clearTimeout(timerId);
-        }
-        lastInvokeTime = 0;
-        lastArgs = lastCallTime = lastThis = timerId = undefined;
-      }
-
-      function flush() {
-        return timerId === undefined ? result : trailingEdge(now());
-      }
-
-      function debounced() {
-        var time = now(),
-            isInvoking = shouldInvoke(time);
-
-        lastArgs = arguments;
-        lastThis = this;
-        lastCallTime = time;
-
-        if (isInvoking) {
-          if (timerId === undefined) {
-            return leadingEdge(lastCallTime);
-          }
-          if (maxing) {
-            // Handle invocations in a tight loop.
-            timerId = setTimeout(timerExpired, wait);
-            return invokeFunc(lastCallTime);
-          }
-        }
-        if (timerId === undefined) {
-          timerId = setTimeout(timerExpired, wait);
-        }
-        return result;
-      }
-      debounced.cancel = cancel;
-      debounced.flush = flush;
-      return debounced;
-    }
-
-    /**
-     * Defers invoking the `func` until the current call stack has cleared. Any
-     * additional arguments are provided to `func` when it's invoked.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to defer.
-     * @param {...*} [args] The arguments to invoke `func` with.
-     * @returns {number} Returns the timer id.
-     * @example
-     *
-     * _.defer(function(text) {
-     *   console.log(text);
-     * }, 'deferred');
-     * // => Logs 'deferred' after one millisecond.
-     */
-    var defer = baseRest(function(func, args) {
-      return baseDelay(func, 1, args);
-    });
-
-    /**
-     * Invokes `func` after `wait` milliseconds. Any additional arguments are
-     * provided to `func` when it's invoked.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to delay.
-     * @param {number} wait The number of milliseconds to delay invocation.
-     * @param {...*} [args] The arguments to invoke `func` with.
-     * @returns {number} Returns the timer id.
-     * @example
-     *
-     * _.delay(function(text) {
-     *   console.log(text);
-     * }, 1000, 'later');
-     * // => Logs 'later' after one second.
-     */
-    var delay = baseRest(function(func, wait, args) {
-      return baseDelay(func, toNumber(wait) || 0, args);
-    });
-
-    /**
-     * Creates a function that invokes `func` with arguments reversed.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Function
-     * @param {Function} func The function to flip arguments for.
-     * @returns {Function} Returns the new flipped function.
-     * @example
-     *
-     * var flipped = _.flip(function() {
-     *   return _.toArray(arguments);
-     * });
-     *
-     * flipped('a', 'b', 'c', 'd');
-     * // => ['d', 'c', 'b', 'a']
-     */
-    function flip(func) {
-      return createWrap(func, WRAP_FLIP_FLAG);
-    }
-
-    /**
-     * Creates a function that memoizes the result of `func`. If `resolver` is
-     * provided, it determines the cache key for storing the result based on the
-     * arguments provided to the memoized function. By default, the first argument
-     * provided to the memoized function is used as the map cache key. The `func`
-     * is invoked with the `this` binding of the memoized function.
-     *
-     * **Note:** The cache is exposed as the `cache` property on the memoized
-     * function. Its creation may be customized by replacing the `_.memoize.Cache`
-     * constructor with one whose instances implement the
-     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
-     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to have its output memoized.
-     * @param {Function} [resolver] The function to resolve the cache key.
-     * @returns {Function} Returns the new memoized function.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2 };
-     * var other = { 'c': 3, 'd': 4 };
-     *
-     * var values = _.memoize(_.values);
-     * values(object);
-     * // => [1, 2]
-     *
-     * values(other);
-     * // => [3, 4]
-     *
-     * object.a = 2;
-     * values(object);
-     * // => [1, 2]
-     *
-     * // Modify the result cache.
-     * values.cache.set(object, ['a', 'b']);
-     * values(object);
-     * // => ['a', 'b']
-     *
-     * // Replace `_.memoize.Cache`.
-     * _.memoize.Cache = WeakMap;
-     */
-    function memoize(func, resolver) {
-      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      var memoized = function() {
-        var args = arguments,
-            key = resolver ? resolver.apply(this, args) : args[0],
-            cache = memoized.cache;
-
-        if (cache.has(key)) {
-          return cache.get(key);
-        }
-        var result = func.apply(this, args);
-        memoized.cache = cache.set(key, result) || cache;
-        return result;
-      };
-      memoized.cache = new (memoize.Cache || MapCache);
-      return memoized;
-    }
-
-    // Expose `MapCache`.
-    memoize.Cache = MapCache;
-
-    /**
-     * Creates a function that negates the result of the predicate `func`. The
-     * `func` predicate is invoked with the `this` binding and arguments of the
-     * created function.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Function
-     * @param {Function} predicate The predicate to negate.
-     * @returns {Function} Returns the new negated function.
-     * @example
-     *
-     * function isEven(n) {
-     *   return n % 2 == 0;
-     * }
-     *
-     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
-     * // => [1, 3, 5]
-     */
-    function negate(predicate) {
-      if (typeof predicate != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      return function() {
-        var args = arguments;
-        switch (args.length) {
-          case 0: return !predicate.call(this);
-          case 1: return !predicate.call(this, args[0]);
-          case 2: return !predicate.call(this, args[0], args[1]);
-          case 3: return !predicate.call(this, args[0], args[1], args[2]);
-        }
-        return !predicate.apply(this, args);
-      };
-    }
-
-    /**
-     * Creates a function that is restricted to invoking `func` once. Repeat calls
-     * to the function return the value of the first invocation. The `func` is
-     * invoked with the `this` binding and arguments of the created function.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to restrict.
-     * @returns {Function} Returns the new restricted function.
-     * @example
-     *
-     * var initialize = _.once(createApplication);
-     * initialize();
-     * initialize();
-     * // => `createApplication` is invoked once
-     */
-    function once(func) {
-      return before(2, func);
-    }
-
-    /**
-     * Creates a function that invokes `func` with its arguments transformed.
-     *
-     * @static
-     * @since 4.0.0
-     * @memberOf _
-     * @category Function
-     * @param {Function} func The function to wrap.
-     * @param {...(Function|Function[])} [transforms=[_.identity]]
-     *  The argument transforms.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * function doubled(n) {
-     *   return n * 2;
-     * }
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var func = _.overArgs(function(x, y) {
-     *   return [x, y];
-     * }, [square, doubled]);
-     *
-     * func(9, 3);
-     * // => [81, 6]
-     *
-     * func(10, 5);
-     * // => [100, 10]
-     */
-    var overArgs = castRest(function(func, transforms) {
-      transforms = (transforms.length == 1 && isArray(transforms[0]))
-        ? arrayMap(transforms[0], baseUnary(getIteratee()))
-        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));
-
-      var funcsLength = transforms.length;
-      return baseRest(function(args) {
-        var index = -1,
-            length = nativeMin(args.length, funcsLength);
-
-        while (++index < length) {
-          args[index] = transforms[index].call(this, args[index]);
-        }
-        return apply(func, this, args);
-      });
-    });
-
-    /**
-     * Creates a function that invokes `func` with `partials` prepended to the
-     * arguments it receives. This method is like `_.bind` except it does **not**
-     * alter the `this` binding.
-     *
-     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** This method doesn't set the "length" property of partially
-     * applied functions.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.2.0
-     * @category Function
-     * @param {Function} func The function to partially apply arguments to.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new partially applied function.
-     * @example
-     *
-     * function greet(greeting, name) {
-     *   return greeting + ' ' + name;
-     * }
-     *
-     * var sayHelloTo = _.partial(greet, 'hello');
-     * sayHelloTo('fred');
-     * // => 'hello fred'
-     *
-     * // Partially applied with placeholders.
-     * var greetFred = _.partial(greet, _, 'fred');
-     * greetFred('hi');
-     * // => 'hi fred'
-     */
-    var partial = baseRest(function(func, partials) {
-      var holders = replaceHolders(partials, getHolder(partial));
-      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
-    });
-
-    /**
-     * This method is like `_.partial` except that partially applied arguments
-     * are appended to the arguments it receives.
-     *
-     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
-     * builds, may be used as a placeholder for partially applied arguments.
-     *
-     * **Note:** This method doesn't set the "length" property of partially
-     * applied functions.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.0.0
-     * @category Function
-     * @param {Function} func The function to partially apply arguments to.
-     * @param {...*} [partials] The arguments to be partially applied.
-     * @returns {Function} Returns the new partially applied function.
-     * @example
-     *
-     * function greet(greeting, name) {
-     *   return greeting + ' ' + name;
-     * }
-     *
-     * var greetFred = _.partialRight(greet, 'fred');
-     * greetFred('hi');
-     * // => 'hi fred'
-     *
-     * // Partially applied with placeholders.
-     * var sayHelloTo = _.partialRight(greet, 'hello', _);
-     * sayHelloTo('fred');
-     * // => 'hello fred'
-     */
-    var partialRight = baseRest(function(func, partials) {
-      var holders = replaceHolders(partials, getHolder(partialRight));
-      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
-    });
-
-    /**
-     * Creates a function that invokes `func` with arguments arranged according
-     * to the specified `indexes` where the argument value at the first index is
-     * provided as the first argument, the argument value at the second index is
-     * provided as the second argument, and so on.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Function
-     * @param {Function} func The function to rearrange arguments for.
-     * @param {...(number|number[])} indexes The arranged argument indexes.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var rearged = _.rearg(function(a, b, c) {
-     *   return [a, b, c];
-     * }, [2, 0, 1]);
-     *
-     * rearged('b', 'c', 'a')
-     * // => ['a', 'b', 'c']
-     */
-    var rearg = flatRest(function(func, indexes) {
-      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
-    });
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of the
-     * created function and arguments from `start` and beyond provided as
-     * an array.
-     *
-     * **Note:** This method is based on the
-     * [rest parameter](https://mdn.io/rest_parameters).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Function
-     * @param {Function} func The function to apply a rest parameter to.
-     * @param {number} [start=func.length-1] The start position of the rest parameter.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var say = _.rest(function(what, names) {
-     *   return what + ' ' + _.initial(names).join(', ') +
-     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
-     * });
-     *
-     * say('hello', 'fred', 'barney', 'pebbles');
-     * // => 'hello fred, barney, & pebbles'
-     */
-    function rest(func, start) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      start = start === undefined ? start : toInteger(start);
-      return baseRest(func, start);
-    }
-
-    /**
-     * Creates a function that invokes `func` with the `this` binding of the
-     * create function and an array of arguments much like
-     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
-     *
-     * **Note:** This method is based on the
-     * [spread operator](https://mdn.io/spread_operator).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.2.0
-     * @category Function
-     * @param {Function} func The function to spread arguments over.
-     * @param {number} [start=0] The start position of the spread.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var say = _.spread(function(who, what) {
-     *   return who + ' says ' + what;
-     * });
-     *
-     * say(['fred', 'hello']);
-     * // => 'fred says hello'
-     *
-     * var numbers = Promise.all([
-     *   Promise.resolve(40),
-     *   Promise.resolve(36)
-     * ]);
-     *
-     * numbers.then(_.spread(function(x, y) {
-     *   return x + y;
-     * }));
-     * // => a Promise of 76
-     */
-    function spread(func, start) {
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      start = start == null ? 0 : nativeMax(toInteger(start), 0);
-      return baseRest(function(args) {
-        var array = args[start],
-            otherArgs = castSlice(args, 0, start);
-
-        if (array) {
-          arrayPush(otherArgs, array);
-        }
-        return apply(func, this, otherArgs);
-      });
-    }
-
-    /**
-     * Creates a throttled function that only invokes `func` at most once per
-     * every `wait` milliseconds. The throttled function comes with a `cancel`
-     * method to cancel delayed `func` invocations and a `flush` method to
-     * immediately invoke them. Provide `options` to indicate whether `func`
-     * should be invoked on the leading and/or trailing edge of the `wait`
-     * timeout. The `func` is invoked with the last arguments provided to the
-     * throttled function. Subsequent calls to the throttled function return the
-     * result of the last `func` invocation.
-     *
-     * **Note:** If `leading` and `trailing` options are `true`, `func` is
-     * invoked on the trailing edge of the timeout only if the throttled function
-     * is invoked more than once during the `wait` timeout.
-     *
-     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
-     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
-     *
-     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
-     * for details over the differences between `_.throttle` and `_.debounce`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {Function} func The function to throttle.
-     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
-     * @param {Object} [options={}] The options object.
-     * @param {boolean} [options.leading=true]
-     *  Specify invoking on the leading edge of the timeout.
-     * @param {boolean} [options.trailing=true]
-     *  Specify invoking on the trailing edge of the timeout.
-     * @returns {Function} Returns the new throttled function.
-     * @example
-     *
-     * // Avoid excessively updating the position while scrolling.
-     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
-     *
-     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
-     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
-     * jQuery(element).on('click', throttled);
-     *
-     * // Cancel the trailing throttled invocation.
-     * jQuery(window).on('popstate', throttled.cancel);
-     */
-    function throttle(func, wait, options) {
-      var leading = true,
-          trailing = true;
-
-      if (typeof func != 'function') {
-        throw new TypeError(FUNC_ERROR_TEXT);
-      }
-      if (isObject(options)) {
-        leading = 'leading' in options ? !!options.leading : leading;
-        trailing = 'trailing' in options ? !!options.trailing : trailing;
-      }
-      return debounce(func, wait, {
-        'leading': leading,
-        'maxWait': wait,
-        'trailing': trailing
-      });
-    }
-
-    /**
-     * Creates a function that accepts up to one argument, ignoring any
-     * additional arguments.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Function
-     * @param {Function} func The function to cap arguments for.
-     * @returns {Function} Returns the new capped function.
-     * @example
-     *
-     * _.map(['6', '8', '10'], _.unary(parseInt));
-     * // => [6, 8, 10]
-     */
-    function unary(func) {
-      return ary(func, 1);
-    }
-
-    /**
-     * Creates a function that provides `value` to `wrapper` as its first
-     * argument. Any additional arguments provided to the function are appended
-     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
-     * binding of the created function.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Function
-     * @param {*} value The value to wrap.
-     * @param {Function} [wrapper=identity] The wrapper function.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var p = _.wrap(_.escape, function(func, text) {
-     *   return '<p>' + func(text) + '</p>';
-     * });
-     *
-     * p('fred, barney, & pebbles');
-     * // => '<p>fred, barney, &amp; pebbles</p>'
-     */
-    function wrap(value, wrapper) {
-      return partial(castFunction(wrapper), value);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Casts `value` as an array if it's not one.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.4.0
-     * @category Lang
-     * @param {*} value The value to inspect.
-     * @returns {Array} Returns the cast array.
-     * @example
-     *
-     * _.castArray(1);
-     * // => [1]
-     *
-     * _.castArray({ 'a': 1 });
-     * // => [{ 'a': 1 }]
-     *
-     * _.castArray('abc');
-     * // => ['abc']
-     *
-     * _.castArray(null);
-     * // => [null]
-     *
-     * _.castArray(undefined);
-     * // => [undefined]
-     *
-     * _.castArray();
-     * // => []
-     *
-     * var array = [1, 2, 3];
-     * console.log(_.castArray(array) === array);
-     * // => true
-     */
-    function castArray() {
-      if (!arguments.length) {
-        return [];
-      }
-      var value = arguments[0];
-      return isArray(value) ? value : [value];
-    }
-
-    /**
-     * Creates a shallow clone of `value`.
-     *
-     * **Note:** This method is loosely based on the
-     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
-     * and supports cloning arrays, array buffers, booleans, date objects, maps,
-     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
-     * arrays. The own enumerable properties of `arguments` objects are cloned
-     * as plain objects. An empty object is returned for uncloneable values such
-     * as error objects, functions, DOM nodes, and WeakMaps.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to clone.
-     * @returns {*} Returns the cloned value.
-     * @see _.cloneDeep
-     * @example
-     *
-     * var objects = [{ 'a': 1 }, { 'b': 2 }];
-     *
-     * var shallow = _.clone(objects);
-     * console.log(shallow[0] === objects[0]);
-     * // => true
-     */
-    function clone(value) {
-      return baseClone(value, CLONE_SYMBOLS_FLAG);
-    }
-
-    /**
-     * This method is like `_.clone` except that it accepts `customizer` which
-     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
-     * cloning is handled by the method instead. The `customizer` is invoked with
-     * up to four arguments; (value [, index|key, object, stack]).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to clone.
-     * @param {Function} [customizer] The function to customize cloning.
-     * @returns {*} Returns the cloned value.
-     * @see _.cloneDeepWith
-     * @example
-     *
-     * function customizer(value) {
-     *   if (_.isElement(value)) {
-     *     return value.cloneNode(false);
-     *   }
-     * }
-     *
-     * var el = _.cloneWith(document.body, customizer);
-     *
-     * console.log(el === document.body);
-     * // => false
-     * console.log(el.nodeName);
-     * // => 'BODY'
-     * console.log(el.childNodes.length);
-     * // => 0
-     */
-    function cloneWith(value, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
-    }
-
-    /**
-     * This method is like `_.clone` except that it recursively clones `value`.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.0.0
-     * @category Lang
-     * @param {*} value The value to recursively clone.
-     * @returns {*} Returns the deep cloned value.
-     * @see _.clone
-     * @example
-     *
-     * var objects = [{ 'a': 1 }, { 'b': 2 }];
-     *
-     * var deep = _.cloneDeep(objects);
-     * console.log(deep[0] === objects[0]);
-     * // => false
-     */
-    function cloneDeep(value) {
-      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
-    }
-
-    /**
-     * This method is like `_.cloneWith` except that it recursively clones `value`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to recursively clone.
-     * @param {Function} [customizer] The function to customize cloning.
-     * @returns {*} Returns the deep cloned value.
-     * @see _.cloneWith
-     * @example
-     *
-     * function customizer(value) {
-     *   if (_.isElement(value)) {
-     *     return value.cloneNode(true);
-     *   }
-     * }
-     *
-     * var el = _.cloneDeepWith(document.body, customizer);
-     *
-     * console.log(el === document.body);
-     * // => false
-     * console.log(el.nodeName);
-     * // => 'BODY'
-     * console.log(el.childNodes.length);
-     * // => 20
-     */
-    function cloneDeepWith(value, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
-    }
-
-    /**
-     * Checks if `object` conforms to `source` by invoking the predicate
-     * properties of `source` with the corresponding property values of `object`.
-     *
-     * **Note:** This method is equivalent to `_.conforms` when `source` is
-     * partially applied.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.14.0
-     * @category Lang
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property predicates to conform to.
-     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2 };
-     *
-     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
-     * // => true
-     *
-     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
-     * // => false
-     */
-    function conformsTo(object, source) {
-      return source == null || baseConformsTo(object, source, keys(source));
-    }
-
-    /**
-     * Performs a
-     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
-     * comparison between two values to determine if they are equivalent.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     * @example
-     *
-     * var object = { 'a': 1 };
-     * var other = { 'a': 1 };
-     *
-     * _.eq(object, object);
-     * // => true
-     *
-     * _.eq(object, other);
-     * // => false
-     *
-     * _.eq('a', 'a');
-     * // => true
-     *
-     * _.eq('a', Object('a'));
-     * // => false
-     *
-     * _.eq(NaN, NaN);
-     * // => true
-     */
-    function eq(value, other) {
-      return value === other || (value !== value && other !== other);
-    }
-
-    /**
-     * Checks if `value` is greater than `other`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.9.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is greater than `other`,
-     *  else `false`.
-     * @see _.lt
-     * @example
-     *
-     * _.gt(3, 1);
-     * // => true
-     *
-     * _.gt(3, 3);
-     * // => false
-     *
-     * _.gt(1, 3);
-     * // => false
-     */
-    var gt = createRelationalOperation(baseGt);
-
-    /**
-     * Checks if `value` is greater than or equal to `other`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.9.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is greater than or equal to
-     *  `other`, else `false`.
-     * @see _.lte
-     * @example
-     *
-     * _.gte(3, 1);
-     * // => true
-     *
-     * _.gte(3, 3);
-     * // => true
-     *
-     * _.gte(1, 3);
-     * // => false
-     */
-    var gte = createRelationalOperation(function(value, other) {
-      return value >= other;
-    });
-
-    /**
-     * Checks if `value` is likely an `arguments` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
-     *  else `false`.
-     * @example
-     *
-     * _.isArguments(function() { return arguments; }());
-     * // => true
-     *
-     * _.isArguments([1, 2, 3]);
-     * // => false
-     */
-    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
-      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
-        !propertyIsEnumerable.call(value, 'callee');
-    };
-
-    /**
-     * Checks if `value` is classified as an `Array` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
-     * @example
-     *
-     * _.isArray([1, 2, 3]);
-     * // => true
-     *
-     * _.isArray(document.body.children);
-     * // => false
-     *
-     * _.isArray('abc');
-     * // => false
-     *
-     * _.isArray(_.noop);
-     * // => false
-     */
-    var isArray = Array.isArray;
-
-    /**
-     * Checks if `value` is classified as an `ArrayBuffer` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
-     * @example
-     *
-     * _.isArrayBuffer(new ArrayBuffer(2));
-     * // => true
-     *
-     * _.isArrayBuffer(new Array(2));
-     * // => false
-     */
-    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;
-
-    /**
-     * Checks if `value` is array-like. A value is considered array-like if it's
-     * not a function and has a `value.length` that's an integer greater than or
-     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
-     * @example
-     *
-     * _.isArrayLike([1, 2, 3]);
-     * // => true
-     *
-     * _.isArrayLike(document.body.children);
-     * // => true
-     *
-     * _.isArrayLike('abc');
-     * // => true
-     *
-     * _.isArrayLike(_.noop);
-     * // => false
-     */
-    function isArrayLike(value) {
-      return value != null && isLength(value.length) && !isFunction(value);
-    }
-
-    /**
-     * This method is like `_.isArrayLike` except that it also checks if `value`
-     * is an object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an array-like object,
-     *  else `false`.
-     * @example
-     *
-     * _.isArrayLikeObject([1, 2, 3]);
-     * // => true
-     *
-     * _.isArrayLikeObject(document.body.children);
-     * // => true
-     *
-     * _.isArrayLikeObject('abc');
-     * // => false
-     *
-     * _.isArrayLikeObject(_.noop);
-     * // => false
-     */
-    function isArrayLikeObject(value) {
-      return isObjectLike(value) && isArrayLike(value);
-    }
-
-    /**
-     * Checks if `value` is classified as a boolean primitive or object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
-     * @example
-     *
-     * _.isBoolean(false);
-     * // => true
-     *
-     * _.isBoolean(null);
-     * // => false
-     */
-    function isBoolean(value) {
-      return value === true || value === false ||
-        (isObjectLike(value) && baseGetTag(value) == boolTag);
-    }
-
-    /**
-     * Checks if `value` is a buffer.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
-     * @example
-     *
-     * _.isBuffer(new Buffer(2));
-     * // => true
-     *
-     * _.isBuffer(new Uint8Array(2));
-     * // => false
-     */
-    var isBuffer = nativeIsBuffer || stubFalse;
-
-    /**
-     * Checks if `value` is classified as a `Date` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
-     * @example
-     *
-     * _.isDate(new Date);
-     * // => true
-     *
-     * _.isDate('Mon April 23 2012');
-     * // => false
-     */
-    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;
-
-    /**
-     * Checks if `value` is likely a DOM element.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
-     * @example
-     *
-     * _.isElement(document.body);
-     * // => true
-     *
-     * _.isElement('<body>');
-     * // => false
-     */
-    function isElement(value) {
-      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
-    }
-
-    /**
-     * Checks if `value` is an empty object, collection, map, or set.
-     *
-     * Objects are considered empty if they have no own enumerable string keyed
-     * properties.
-     *
-     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
-     * jQuery-like collections are considered empty if they have a `length` of `0`.
-     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
-     * @example
-     *
-     * _.isEmpty(null);
-     * // => true
-     *
-     * _.isEmpty(true);
-     * // => true
-     *
-     * _.isEmpty(1);
-     * // => true
-     *
-     * _.isEmpty([1, 2, 3]);
-     * // => false
-     *
-     * _.isEmpty({ 'a': 1 });
-     * // => false
-     */
-    function isEmpty(value) {
-      if (value == null) {
-        return true;
-      }
-      if (isArrayLike(value) &&
-          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
-            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
-        return !value.length;
-      }
-      var tag = getTag(value);
-      if (tag == mapTag || tag == setTag) {
-        return !value.size;
-      }
-      if (isPrototype(value)) {
-        return !baseKeys(value).length;
-      }
-      for (var key in value) {
-        if (hasOwnProperty.call(value, key)) {
-          return false;
-        }
-      }
-      return true;
-    }
-
-    /**
-     * Performs a deep comparison between two values to determine if they are
-     * equivalent.
-     *
-     * **Note:** This method supports comparing arrays, array buffers, booleans,
-     * date objects, error objects, maps, numbers, `Object` objects, regexes,
-     * sets, strings, symbols, and typed arrays. `Object` objects are compared
-     * by their own, not inherited, enumerable properties. Functions and DOM
-     * nodes are compared by strict equality, i.e. `===`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     * @example
-     *
-     * var object = { 'a': 1 };
-     * var other = { 'a': 1 };
-     *
-     * _.isEqual(object, other);
-     * // => true
-     *
-     * object === other;
-     * // => false
-     */
-    function isEqual(value, other) {
-      return baseIsEqual(value, other);
-    }
-
-    /**
-     * This method is like `_.isEqual` except that it accepts `customizer` which
-     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
-     * are handled by the method instead. The `customizer` is invoked with up to
-     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @param {Function} [customizer] The function to customize comparisons.
-     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
-     * @example
-     *
-     * function isGreeting(value) {
-     *   return /^h(?:i|ello)$/.test(value);
-     * }
-     *
-     * function customizer(objValue, othValue) {
-     *   if (isGreeting(objValue) && isGreeting(othValue)) {
-     *     return true;
-     *   }
-     * }
-     *
-     * var array = ['hello', 'goodbye'];
-     * var other = ['hi', 'goodbye'];
-     *
-     * _.isEqualWith(array, other, customizer);
-     * // => true
-     */
-    function isEqualWith(value, other, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      var result = customizer ? customizer(value, other) : undefined;
-      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
-    }
-
-    /**
-     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
-     * `SyntaxError`, `TypeError`, or `URIError` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
-     * @example
-     *
-     * _.isError(new Error);
-     * // => true
-     *
-     * _.isError(Error);
-     * // => false
-     */
-    function isError(value) {
-      if (!isObjectLike(value)) {
-        return false;
-      }
-      var tag = baseGetTag(value);
-      return tag == errorTag || tag == domExcTag ||
-        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
-    }
-
-    /**
-     * Checks if `value` is a finite primitive number.
-     *
-     * **Note:** This method is based on
-     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
-     * @example
-     *
-     * _.isFinite(3);
-     * // => true
-     *
-     * _.isFinite(Number.MIN_VALUE);
-     * // => true
-     *
-     * _.isFinite(Infinity);
-     * // => false
-     *
-     * _.isFinite('3');
-     * // => false
-     */
-    function isFinite(value) {
-      return typeof value == 'number' && nativeIsFinite(value);
-    }
-
-    /**
-     * Checks if `value` is classified as a `Function` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
-     * @example
-     *
-     * _.isFunction(_);
-     * // => true
-     *
-     * _.isFunction(/abc/);
-     * // => false
-     */
-    function isFunction(value) {
-      if (!isObject(value)) {
-        return false;
-      }
-      // The use of `Object#toString` avoids issues with the `typeof` operator
-      // in Safari 9 which returns 'object' for typed arrays and other constructors.
-      var tag = baseGetTag(value);
-      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
-    }
-
-    /**
-     * Checks if `value` is an integer.
-     *
-     * **Note:** This method is based on
-     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
-     * @example
-     *
-     * _.isInteger(3);
-     * // => true
-     *
-     * _.isInteger(Number.MIN_VALUE);
-     * // => false
-     *
-     * _.isInteger(Infinity);
-     * // => false
-     *
-     * _.isInteger('3');
-     * // => false
-     */
-    function isInteger(value) {
-      return typeof value == 'number' && value == toInteger(value);
-    }
-
-    /**
-     * Checks if `value` is a valid array-like length.
-     *
-     * **Note:** This method is loosely based on
-     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
-     * @example
-     *
-     * _.isLength(3);
-     * // => true
-     *
-     * _.isLength(Number.MIN_VALUE);
-     * // => false
-     *
-     * _.isLength(Infinity);
-     * // => false
-     *
-     * _.isLength('3');
-     * // => false
-     */
-    function isLength(value) {
-      return typeof value == 'number' &&
-        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-    }
-
-    /**
-     * Checks if `value` is the
-     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
-     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
-     * @example
-     *
-     * _.isObject({});
-     * // => true
-     *
-     * _.isObject([1, 2, 3]);
-     * // => true
-     *
-     * _.isObject(_.noop);
-     * // => true
-     *
-     * _.isObject(null);
-     * // => false
-     */
-    function isObject(value) {
-      var type = typeof value;
-      return value != null && (type == 'object' || type == 'function');
-    }
-
-    /**
-     * Checks if `value` is object-like. A value is object-like if it's not `null`
-     * and has a `typeof` result of "object".
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
-     * @example
-     *
-     * _.isObjectLike({});
-     * // => true
-     *
-     * _.isObjectLike([1, 2, 3]);
-     * // => true
-     *
-     * _.isObjectLike(_.noop);
-     * // => false
-     *
-     * _.isObjectLike(null);
-     * // => false
-     */
-    function isObjectLike(value) {
-      return value != null && typeof value == 'object';
-    }
-
-    /**
-     * Checks if `value` is classified as a `Map` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
-     * @example
-     *
-     * _.isMap(new Map);
-     * // => true
-     *
-     * _.isMap(new WeakMap);
-     * // => false
-     */
-    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;
-
-    /**
-     * Performs a partial deep comparison between `object` and `source` to
-     * determine if `object` contains equivalent property values.
-     *
-     * **Note:** This method is equivalent to `_.matches` when `source` is
-     * partially applied.
-     *
-     * Partial comparisons will match empty array and empty object `source`
-     * values against any array or object value, respectively. See `_.isEqual`
-     * for a list of supported value comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Lang
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property values to match.
-     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2 };
-     *
-     * _.isMatch(object, { 'b': 2 });
-     * // => true
-     *
-     * _.isMatch(object, { 'b': 1 });
-     * // => false
-     */
-    function isMatch(object, source) {
-      return object === source || baseIsMatch(object, source, getMatchData(source));
-    }
-
-    /**
-     * This method is like `_.isMatch` except that it accepts `customizer` which
-     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
-     * are handled by the method instead. The `customizer` is invoked with five
-     * arguments: (objValue, srcValue, index|key, object, source).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {Object} object The object to inspect.
-     * @param {Object} source The object of property values to match.
-     * @param {Function} [customizer] The function to customize comparisons.
-     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
-     * @example
-     *
-     * function isGreeting(value) {
-     *   return /^h(?:i|ello)$/.test(value);
-     * }
-     *
-     * function customizer(objValue, srcValue) {
-     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
-     *     return true;
-     *   }
-     * }
-     *
-     * var object = { 'greeting': 'hello' };
-     * var source = { 'greeting': 'hi' };
-     *
-     * _.isMatchWith(object, source, customizer);
-     * // => true
-     */
-    function isMatchWith(object, source, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      return baseIsMatch(object, source, getMatchData(source), customizer);
-    }
-
-    /**
-     * Checks if `value` is `NaN`.
-     *
-     * **Note:** This method is based on
-     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
-     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
-     * `undefined` and other non-number values.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
-     * @example
-     *
-     * _.isNaN(NaN);
-     * // => true
-     *
-     * _.isNaN(new Number(NaN));
-     * // => true
-     *
-     * isNaN(undefined);
-     * // => true
-     *
-     * _.isNaN(undefined);
-     * // => false
-     */
-    function isNaN(value) {
-      // An `NaN` primitive is the only value that is not equal to itself.
-      // Perform the `toStringTag` check first to avoid errors with some
-      // ActiveX objects in IE.
-      return isNumber(value) && value != +value;
-    }
-
-    /**
-     * Checks if `value` is a pristine native function.
-     *
-     * **Note:** This method can't reliably detect native functions in the presence
-     * of the core-js package because core-js circumvents this kind of detection.
-     * Despite multiple requests, the core-js maintainer has made it clear: any
-     * attempt to fix the detection will be obstructed. As a result, we're left
-     * with little choice but to throw an error. Unfortunately, this also affects
-     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
-     * which rely on core-js.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a native function,
-     *  else `false`.
-     * @example
-     *
-     * _.isNative(Array.prototype.push);
-     * // => true
-     *
-     * _.isNative(_);
-     * // => false
-     */
-    function isNative(value) {
-      if (isMaskable(value)) {
-        throw new Error(CORE_ERROR_TEXT);
-      }
-      return baseIsNative(value);
-    }
-
-    /**
-     * Checks if `value` is `null`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
-     * @example
-     *
-     * _.isNull(null);
-     * // => true
-     *
-     * _.isNull(void 0);
-     * // => false
-     */
-    function isNull(value) {
-      return value === null;
-    }
-
-    /**
-     * Checks if `value` is `null` or `undefined`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
-     * @example
-     *
-     * _.isNil(null);
-     * // => true
-     *
-     * _.isNil(void 0);
-     * // => true
-     *
-     * _.isNil(NaN);
-     * // => false
-     */
-    function isNil(value) {
-      return value == null;
-    }
-
-    /**
-     * Checks if `value` is classified as a `Number` primitive or object.
-     *
-     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
-     * classified as numbers, use the `_.isFinite` method.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
-     * @example
-     *
-     * _.isNumber(3);
-     * // => true
-     *
-     * _.isNumber(Number.MIN_VALUE);
-     * // => true
-     *
-     * _.isNumber(Infinity);
-     * // => true
-     *
-     * _.isNumber('3');
-     * // => false
-     */
-    function isNumber(value) {
-      return typeof value == 'number' ||
-        (isObjectLike(value) && baseGetTag(value) == numberTag);
-    }
-
-    /**
-     * Checks if `value` is a plain object, that is, an object created by the
-     * `Object` constructor or one with a `[[Prototype]]` of `null`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.8.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     * }
-     *
-     * _.isPlainObject(new Foo);
-     * // => false
-     *
-     * _.isPlainObject([1, 2, 3]);
-     * // => false
-     *
-     * _.isPlainObject({ 'x': 0, 'y': 0 });
-     * // => true
-     *
-     * _.isPlainObject(Object.create(null));
-     * // => true
-     */
-    function isPlainObject(value) {
-      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
-        return false;
-      }
-      var proto = getPrototype(value);
-      if (proto === null) {
-        return true;
-      }
-      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
-      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
-        funcToString.call(Ctor) == objectCtorString;
-    }
-
-    /**
-     * Checks if `value` is classified as a `RegExp` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.1.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
-     * @example
-     *
-     * _.isRegExp(/abc/);
-     * // => true
-     *
-     * _.isRegExp('/abc/');
-     * // => false
-     */
-    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;
-
-    /**
-     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
-     * double precision number which isn't the result of a rounded unsafe integer.
-     *
-     * **Note:** This method is based on
-     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
-     * @example
-     *
-     * _.isSafeInteger(3);
-     * // => true
-     *
-     * _.isSafeInteger(Number.MIN_VALUE);
-     * // => false
-     *
-     * _.isSafeInteger(Infinity);
-     * // => false
-     *
-     * _.isSafeInteger('3');
-     * // => false
-     */
-    function isSafeInteger(value) {
-      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
-    }
-
-    /**
-     * Checks if `value` is classified as a `Set` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
-     * @example
-     *
-     * _.isSet(new Set);
-     * // => true
-     *
-     * _.isSet(new WeakSet);
-     * // => false
-     */
-    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;
-
-    /**
-     * Checks if `value` is classified as a `String` primitive or object.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
-     * @example
-     *
-     * _.isString('abc');
-     * // => true
-     *
-     * _.isString(1);
-     * // => false
-     */
-    function isString(value) {
-      return typeof value == 'string' ||
-        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
-    }
-
-    /**
-     * Checks if `value` is classified as a `Symbol` primitive or object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
-     * @example
-     *
-     * _.isSymbol(Symbol.iterator);
-     * // => true
-     *
-     * _.isSymbol('abc');
-     * // => false
-     */
-    function isSymbol(value) {
-      return typeof value == 'symbol' ||
-        (isObjectLike(value) && baseGetTag(value) == symbolTag);
-    }
-
-    /**
-     * Checks if `value` is classified as a typed array.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
-     * @example
-     *
-     * _.isTypedArray(new Uint8Array);
-     * // => true
-     *
-     * _.isTypedArray([]);
-     * // => false
-     */
-    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
-
-    /**
-     * Checks if `value` is `undefined`.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
-     * @example
-     *
-     * _.isUndefined(void 0);
-     * // => true
-     *
-     * _.isUndefined(null);
-     * // => false
-     */
-    function isUndefined(value) {
-      return value === undefined;
-    }
-
-    /**
-     * Checks if `value` is classified as a `WeakMap` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
-     * @example
-     *
-     * _.isWeakMap(new WeakMap);
-     * // => true
-     *
-     * _.isWeakMap(new Map);
-     * // => false
-     */
-    function isWeakMap(value) {
-      return isObjectLike(value) && getTag(value) == weakMapTag;
-    }
-
-    /**
-     * Checks if `value` is classified as a `WeakSet` object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.3.0
-     * @category Lang
-     * @param {*} value The value to check.
-     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
-     * @example
-     *
-     * _.isWeakSet(new WeakSet);
-     * // => true
-     *
-     * _.isWeakSet(new Set);
-     * // => false
-     */
-    function isWeakSet(value) {
-      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
-    }
-
-    /**
-     * Checks if `value` is less than `other`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.9.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is less than `other`,
-     *  else `false`.
-     * @see _.gt
-     * @example
-     *
-     * _.lt(1, 3);
-     * // => true
-     *
-     * _.lt(3, 3);
-     * // => false
-     *
-     * _.lt(3, 1);
-     * // => false
-     */
-    var lt = createRelationalOperation(baseLt);
-
-    /**
-     * Checks if `value` is less than or equal to `other`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.9.0
-     * @category Lang
-     * @param {*} value The value to compare.
-     * @param {*} other The other value to compare.
-     * @returns {boolean} Returns `true` if `value` is less than or equal to
-     *  `other`, else `false`.
-     * @see _.gte
-     * @example
-     *
-     * _.lte(1, 3);
-     * // => true
-     *
-     * _.lte(3, 3);
-     * // => true
-     *
-     * _.lte(3, 1);
-     * // => false
-     */
-    var lte = createRelationalOperation(function(value, other) {
-      return value <= other;
-    });
-
-    /**
-     * Converts `value` to an array.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {Array} Returns the converted array.
-     * @example
-     *
-     * _.toArray({ 'a': 1, 'b': 2 });
-     * // => [1, 2]
-     *
-     * _.toArray('abc');
-     * // => ['a', 'b', 'c']
-     *
-     * _.toArray(1);
-     * // => []
-     *
-     * _.toArray(null);
-     * // => []
-     */
-    function toArray(value) {
-      if (!value) {
-        return [];
-      }
-      if (isArrayLike(value)) {
-        return isString(value) ? stringToArray(value) : copyArray(value);
-      }
-      if (symIterator && value[symIterator]) {
-        return iteratorToArray(value[symIterator]());
-      }
-      var tag = getTag(value),
-          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
-
-      return func(value);
-    }
-
-    /**
-     * Converts `value` to a finite number.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.12.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {number} Returns the converted number.
-     * @example
-     *
-     * _.toFinite(3.2);
-     * // => 3.2
-     *
-     * _.toFinite(Number.MIN_VALUE);
-     * // => 5e-324
-     *
-     * _.toFinite(Infinity);
-     * // => 1.7976931348623157e+308
-     *
-     * _.toFinite('3.2');
-     * // => 3.2
-     */
-    function toFinite(value) {
-      if (!value) {
-        return value === 0 ? value : 0;
-      }
-      value = toNumber(value);
-      if (value === INFINITY || value === -INFINITY) {
-        var sign = (value < 0 ? -1 : 1);
-        return sign * MAX_INTEGER;
-      }
-      return value === value ? value : 0;
-    }
-
-    /**
-     * Converts `value` to an integer.
-     *
-     * **Note:** This method is loosely based on
-     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {number} Returns the converted integer.
-     * @example
-     *
-     * _.toInteger(3.2);
-     * // => 3
-     *
-     * _.toInteger(Number.MIN_VALUE);
-     * // => 0
-     *
-     * _.toInteger(Infinity);
-     * // => 1.7976931348623157e+308
-     *
-     * _.toInteger('3.2');
-     * // => 3
-     */
-    function toInteger(value) {
-      var result = toFinite(value),
-          remainder = result % 1;
-
-      return result === result ? (remainder ? result - remainder : result) : 0;
-    }
-
-    /**
-     * Converts `value` to an integer suitable for use as the length of an
-     * array-like object.
-     *
-     * **Note:** This method is based on
-     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {number} Returns the converted integer.
-     * @example
-     *
-     * _.toLength(3.2);
-     * // => 3
-     *
-     * _.toLength(Number.MIN_VALUE);
-     * // => 0
-     *
-     * _.toLength(Infinity);
-     * // => 4294967295
-     *
-     * _.toLength('3.2');
-     * // => 3
-     */
-    function toLength(value) {
-      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
-    }
-
-    /**
-     * Converts `value` to a number.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to process.
-     * @returns {number} Returns the number.
-     * @example
-     *
-     * _.toNumber(3.2);
-     * // => 3.2
-     *
-     * _.toNumber(Number.MIN_VALUE);
-     * // => 5e-324
-     *
-     * _.toNumber(Infinity);
-     * // => Infinity
-     *
-     * _.toNumber('3.2');
-     * // => 3.2
-     */
-    function toNumber(value) {
-      if (typeof value == 'number') {
-        return value;
-      }
-      if (isSymbol(value)) {
-        return NAN;
-      }
-      if (isObject(value)) {
-        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
-        value = isObject(other) ? (other + '') : other;
-      }
-      if (typeof value != 'string') {
-        return value === 0 ? value : +value;
-      }
-      value = value.replace(reTrim, '');
-      var isBinary = reIsBinary.test(value);
-      return (isBinary || reIsOctal.test(value))
-        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
-        : (reIsBadHex.test(value) ? NAN : +value);
-    }
-
-    /**
-     * Converts `value` to a plain object flattening inherited enumerable string
-     * keyed properties of `value` to own properties of the plain object.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {Object} Returns the converted plain object.
-     * @example
-     *
-     * function Foo() {
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.assign({ 'a': 1 }, new Foo);
-     * // => { 'a': 1, 'b': 2 }
-     *
-     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
-     * // => { 'a': 1, 'b': 2, 'c': 3 }
-     */
-    function toPlainObject(value) {
-      return copyObject(value, keysIn(value));
-    }
-
-    /**
-     * Converts `value` to a safe integer. A safe integer can be compared and
-     * represented correctly.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {number} Returns the converted integer.
-     * @example
-     *
-     * _.toSafeInteger(3.2);
-     * // => 3
-     *
-     * _.toSafeInteger(Number.MIN_VALUE);
-     * // => 0
-     *
-     * _.toSafeInteger(Infinity);
-     * // => 9007199254740991
-     *
-     * _.toSafeInteger('3.2');
-     * // => 3
-     */
-    function toSafeInteger(value) {
-      return value
-        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
-        : (value === 0 ? value : 0);
-    }
-
-    /**
-     * Converts `value` to a string. An empty string is returned for `null`
-     * and `undefined` values. The sign of `-0` is preserved.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Lang
-     * @param {*} value The value to convert.
-     * @returns {string} Returns the converted string.
-     * @example
-     *
-     * _.toString(null);
-     * // => ''
-     *
-     * _.toString(-0);
-     * // => '-0'
-     *
-     * _.toString([1, 2, 3]);
-     * // => '1,2,3'
-     */
-    function toString(value) {
-      return value == null ? '' : baseToString(value);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Assigns own enumerable string keyed properties of source objects to the
-     * destination object. Source objects are applied from left to right.
-     * Subsequent sources overwrite property assignments of previous sources.
-     *
-     * **Note:** This method mutates `object` and is loosely based on
-     * [`Object.assign`](https://mdn.io/Object/assign).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.10.0
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @see _.assignIn
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     * }
-     *
-     * function Bar() {
-     *   this.c = 3;
-     * }
-     *
-     * Foo.prototype.b = 2;
-     * Bar.prototype.d = 4;
-     *
-     * _.assign({ 'a': 0 }, new Foo, new Bar);
-     * // => { 'a': 1, 'c': 3 }
-     */
-    var assign = createAssigner(function(object, source) {
-      if (isPrototype(source) || isArrayLike(source)) {
-        copyObject(source, keys(source), object);
-        return;
-      }
-      for (var key in source) {
-        if (hasOwnProperty.call(source, key)) {
-          assignValue(object, key, source[key]);
-        }
-      }
-    });
-
-    /**
-     * This method is like `_.assign` except that it iterates over own and
-     * inherited source properties.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @alias extend
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @see _.assign
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     * }
-     *
-     * function Bar() {
-     *   this.c = 3;
-     * }
-     *
-     * Foo.prototype.b = 2;
-     * Bar.prototype.d = 4;
-     *
-     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
-     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
-     */
-    var assignIn = createAssigner(function(object, source) {
-      copyObject(source, keysIn(source), object);
-    });
-
-    /**
-     * This method is like `_.assignIn` except that it accepts `customizer`
-     * which is invoked to produce the assigned values. If `customizer` returns
-     * `undefined`, assignment is handled by the method instead. The `customizer`
-     * is invoked with five arguments: (objValue, srcValue, key, object, source).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @alias extendWith
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} sources The source objects.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     * @see _.assignWith
-     * @example
-     *
-     * function customizer(objValue, srcValue) {
-     *   return _.isUndefined(objValue) ? srcValue : objValue;
-     * }
-     *
-     * var defaults = _.partialRight(_.assignInWith, customizer);
-     *
-     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
-     * // => { 'a': 1, 'b': 2 }
-     */
-    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
-      copyObject(source, keysIn(source), object, customizer);
-    });
-
-    /**
-     * This method is like `_.assign` except that it accepts `customizer`
-     * which is invoked to produce the assigned values. If `customizer` returns
-     * `undefined`, assignment is handled by the method instead. The `customizer`
-     * is invoked with five arguments: (objValue, srcValue, key, object, source).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} sources The source objects.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     * @see _.assignInWith
-     * @example
-     *
-     * function customizer(objValue, srcValue) {
-     *   return _.isUndefined(objValue) ? srcValue : objValue;
-     * }
-     *
-     * var defaults = _.partialRight(_.assignWith, customizer);
-     *
-     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
-     * // => { 'a': 1, 'b': 2 }
-     */
-    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
-      copyObject(source, keys(source), object, customizer);
-    });
-
-    /**
-     * Creates an array of values corresponding to `paths` of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.0.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {...(string|string[])} [paths] The property paths to pick.
-     * @returns {Array} Returns the picked values.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
-     *
-     * _.at(object, ['a[0].b.c', 'a[1]']);
-     * // => [3, 4]
-     */
-    var at = flatRest(baseAt);
-
-    /**
-     * Creates an object that inherits from the `prototype` object. If a
-     * `properties` object is given, its own enumerable string keyed properties
-     * are assigned to the created object.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.3.0
-     * @category Object
-     * @param {Object} prototype The object to inherit from.
-     * @param {Object} [properties] The properties to assign to the object.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * function Shape() {
-     *   this.x = 0;
-     *   this.y = 0;
-     * }
-     *
-     * function Circle() {
-     *   Shape.call(this);
-     * }
-     *
-     * Circle.prototype = _.create(Shape.prototype, {
-     *   'constructor': Circle
-     * });
-     *
-     * var circle = new Circle;
-     * circle instanceof Circle;
-     * // => true
-     *
-     * circle instanceof Shape;
-     * // => true
-     */
-    function create(prototype, properties) {
-      var result = baseCreate(prototype);
-      return properties == null ? result : baseAssign(result, properties);
-    }
-
-    /**
-     * Assigns own and inherited enumerable string keyed properties of source
-     * objects to the destination object for all destination properties that
-     * resolve to `undefined`. Source objects are applied from left to right.
-     * Once a property is set, additional values of the same property are ignored.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @see _.defaultsDeep
-     * @example
-     *
-     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
-     * // => { 'a': 1, 'b': 2 }
-     */
-    var defaults = baseRest(function(object, sources) {
-      object = Object(object);
-
-      var index = -1;
-      var length = sources.length;
-      var guard = length > 2 ? sources[2] : undefined;
-
-      if (guard && isIterateeCall(sources[0], sources[1], guard)) {
-        length = 1;
-      }
-
-      while (++index < length) {
-        var source = sources[index];
-        var props = keysIn(source);
-        var propsIndex = -1;
-        var propsLength = props.length;
-
-        while (++propsIndex < propsLength) {
-          var key = props[propsIndex];
-          var value = object[key];
-
-          if (value === undefined ||
-              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
-            object[key] = source[key];
-          }
-        }
-      }
-
-      return object;
-    });
-
-    /**
-     * This method is like `_.defaults` except that it recursively assigns
-     * default properties.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.10.0
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @see _.defaults
-     * @example
-     *
-     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
-     * // => { 'a': { 'b': 2, 'c': 3 } }
-     */
-    var defaultsDeep = baseRest(function(args) {
-      args.push(undefined, customDefaultsMerge);
-      return apply(mergeWith, undefined, args);
-    });
-
-    /**
-     * This method is like `_.find` except that it returns the key of the first
-     * element `predicate` returns truthy for instead of the element itself.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.1.0
-     * @category Object
-     * @param {Object} object The object to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {string|undefined} Returns the key of the matched element,
-     *  else `undefined`.
-     * @example
-     *
-     * var users = {
-     *   'barney':  { 'age': 36, 'active': true },
-     *   'fred':    { 'age': 40, 'active': false },
-     *   'pebbles': { 'age': 1,  'active': true }
-     * };
-     *
-     * _.findKey(users, function(o) { return o.age < 40; });
-     * // => 'barney' (iteration order is not guaranteed)
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.findKey(users, { 'age': 1, 'active': true });
-     * // => 'pebbles'
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.findKey(users, ['active', false]);
-     * // => 'fred'
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.findKey(users, 'active');
-     * // => 'barney'
-     */
-    function findKey(object, predicate) {
-      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
-    }
-
-    /**
-     * This method is like `_.findKey` except that it iterates over elements of
-     * a collection in the opposite order.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Object
-     * @param {Object} object The object to inspect.
-     * @param {Function} [predicate=_.identity] The function invoked per iteration.
-     * @returns {string|undefined} Returns the key of the matched element,
-     *  else `undefined`.
-     * @example
-     *
-     * var users = {
-     *   'barney':  { 'age': 36, 'active': true },
-     *   'fred':    { 'age': 40, 'active': false },
-     *   'pebbles': { 'age': 1,  'active': true }
-     * };
-     *
-     * _.findLastKey(users, function(o) { return o.age < 40; });
-     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.findLastKey(users, { 'age': 36, 'active': true });
-     * // => 'barney'
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.findLastKey(users, ['active', false]);
-     * // => 'fred'
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.findLastKey(users, 'active');
-     * // => 'pebbles'
-     */
-    function findLastKey(object, predicate) {
-      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
-    }
-
-    /**
-     * Iterates over own and inherited enumerable string keyed properties of an
-     * object and invokes `iteratee` for each property. The iteratee is invoked
-     * with three arguments: (value, key, object). Iteratee functions may exit
-     * iteration early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.3.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     * @see _.forInRight
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forIn(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
-     */
-    function forIn(object, iteratee) {
-      return object == null
-        ? object
-        : baseFor(object, getIteratee(iteratee, 3), keysIn);
-    }
-
-    /**
-     * This method is like `_.forIn` except that it iterates over properties of
-     * `object` in the opposite order.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     * @see _.forIn
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forInRight(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
-     */
-    function forInRight(object, iteratee) {
-      return object == null
-        ? object
-        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
-    }
-
-    /**
-     * Iterates over own enumerable string keyed properties of an object and
-     * invokes `iteratee` for each property. The iteratee is invoked with three
-     * arguments: (value, key, object). Iteratee functions may exit iteration
-     * early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.3.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     * @see _.forOwnRight
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forOwn(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
-     */
-    function forOwn(object, iteratee) {
-      return object && baseForOwn(object, getIteratee(iteratee, 3));
-    }
-
-    /**
-     * This method is like `_.forOwn` except that it iterates over properties of
-     * `object` in the opposite order.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.0.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns `object`.
-     * @see _.forOwn
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.forOwnRight(new Foo, function(value, key) {
-     *   console.log(key);
-     * });
-     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
-     */
-    function forOwnRight(object, iteratee) {
-      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
-    }
-
-    /**
-     * Creates an array of function property names from own enumerable properties
-     * of `object`.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to inspect.
-     * @returns {Array} Returns the function names.
-     * @see _.functionsIn
-     * @example
-     *
-     * function Foo() {
-     *   this.a = _.constant('a');
-     *   this.b = _.constant('b');
-     * }
-     *
-     * Foo.prototype.c = _.constant('c');
-     *
-     * _.functions(new Foo);
-     * // => ['a', 'b']
-     */
-    function functions(object) {
-      return object == null ? [] : baseFunctions(object, keys(object));
-    }
-
-    /**
-     * Creates an array of function property names from own and inherited
-     * enumerable properties of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The object to inspect.
-     * @returns {Array} Returns the function names.
-     * @see _.functions
-     * @example
-     *
-     * function Foo() {
-     *   this.a = _.constant('a');
-     *   this.b = _.constant('b');
-     * }
-     *
-     * Foo.prototype.c = _.constant('c');
-     *
-     * _.functionsIn(new Foo);
-     * // => ['a', 'b', 'c']
-     */
-    function functionsIn(object) {
-      return object == null ? [] : baseFunctions(object, keysIn(object));
-    }
-
-    /**
-     * Gets the value at `path` of `object`. If the resolved value is
-     * `undefined`, the `defaultValue` is returned in its place.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.7.0
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the property to get.
-     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
-     * @returns {*} Returns the resolved value.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
-     *
-     * _.get(object, 'a[0].b.c');
-     * // => 3
-     *
-     * _.get(object, ['a', '0', 'b', 'c']);
-     * // => 3
-     *
-     * _.get(object, 'a.b.c', 'default');
-     * // => 'default'
-     */
-    function get(object, path, defaultValue) {
-      var result = object == null ? undefined : baseGet(object, path);
-      return result === undefined ? defaultValue : result;
-    }
-
-    /**
-     * Checks if `path` is a direct property of `object`.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path to check.
-     * @returns {boolean} Returns `true` if `path` exists, else `false`.
-     * @example
-     *
-     * var object = { 'a': { 'b': 2 } };
-     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
-     *
-     * _.has(object, 'a');
-     * // => true
-     *
-     * _.has(object, 'a.b');
-     * // => true
-     *
-     * _.has(object, ['a', 'b']);
-     * // => true
-     *
-     * _.has(other, 'a');
-     * // => false
-     */
-    function has(object, path) {
-      return object != null && hasPath(object, path, baseHas);
-    }
-
-    /**
-     * Checks if `path` is a direct or inherited property of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path to check.
-     * @returns {boolean} Returns `true` if `path` exists, else `false`.
-     * @example
-     *
-     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
-     *
-     * _.hasIn(object, 'a');
-     * // => true
-     *
-     * _.hasIn(object, 'a.b');
-     * // => true
-     *
-     * _.hasIn(object, ['a', 'b']);
-     * // => true
-     *
-     * _.hasIn(object, 'b');
-     * // => false
-     */
-    function hasIn(object, path) {
-      return object != null && hasPath(object, path, baseHasIn);
-    }
-
-    /**
-     * Creates an object composed of the inverted keys and values of `object`.
-     * If `object` contains duplicate values, subsequent values overwrite
-     * property assignments of previous values.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.7.0
-     * @category Object
-     * @param {Object} object The object to invert.
-     * @returns {Object} Returns the new inverted object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2, 'c': 1 };
-     *
-     * _.invert(object);
-     * // => { '1': 'c', '2': 'b' }
-     */
-    var invert = createInverter(function(result, value, key) {
-      if (value != null &&
-          typeof value.toString != 'function') {
-        value = nativeObjectToString.call(value);
-      }
-
-      result[value] = key;
-    }, constant(identity));
-
-    /**
-     * This method is like `_.invert` except that the inverted object is generated
-     * from the results of running each element of `object` thru `iteratee`. The
-     * corresponding inverted value of each inverted key is an array of keys
-     * responsible for generating the inverted value. The iteratee is invoked
-     * with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.1.0
-     * @category Object
-     * @param {Object} object The object to invert.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {Object} Returns the new inverted object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': 2, 'c': 1 };
-     *
-     * _.invertBy(object);
-     * // => { '1': ['a', 'c'], '2': ['b'] }
-     *
-     * _.invertBy(object, function(value) {
-     *   return 'group' + value;
-     * });
-     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
-     */
-    var invertBy = createInverter(function(result, value, key) {
-      if (value != null &&
-          typeof value.toString != 'function') {
-        value = nativeObjectToString.call(value);
-      }
-
-      if (hasOwnProperty.call(result, value)) {
-        result[value].push(key);
-      } else {
-        result[value] = [key];
-      }
-    }, getIteratee);
-
-    /**
-     * Invokes the method at `path` of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the method to invoke.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {*} Returns the result of the invoked method.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
-     *
-     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
-     * // => [2, 3]
-     */
-    var invoke = baseRest(baseInvoke);
-
-    /**
-     * Creates an array of the own enumerable property names of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects. See the
-     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
-     * for more details.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.keys(new Foo);
-     * // => ['a', 'b'] (iteration order is not guaranteed)
-     *
-     * _.keys('hi');
-     * // => ['0', '1']
-     */
-    function keys(object) {
-      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
-    }
-
-    /**
-     * Creates an array of the own and inherited enumerable property names of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property names.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.keysIn(new Foo);
-     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
-     */
-    function keysIn(object) {
-      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
-    }
-
-    /**
-     * The opposite of `_.mapValues`; this method creates an object with the
-     * same values as `object` and keys generated by running each own enumerable
-     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
-     * with three arguments: (value, key, object).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.8.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns the new mapped object.
-     * @see _.mapValues
-     * @example
-     *
-     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
-     *   return key + value;
-     * });
-     * // => { 'a1': 1, 'b2': 2 }
-     */
-    function mapKeys(object, iteratee) {
-      var result = {};
-      iteratee = getIteratee(iteratee, 3);
-
-      baseForOwn(object, function(value, key, object) {
-        baseAssignValue(result, iteratee(value, key, object), value);
-      });
-      return result;
-    }
-
-    /**
-     * Creates an object with the same keys as `object` and values generated
-     * by running each own enumerable string keyed property of `object` thru
-     * `iteratee`. The iteratee is invoked with three arguments:
-     * (value, key, object).
-     *
-     * @static
-     * @memberOf _
-     * @since 2.4.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Object} Returns the new mapped object.
-     * @see _.mapKeys
-     * @example
-     *
-     * var users = {
-     *   'fred':    { 'user': 'fred',    'age': 40 },
-     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
-     * };
-     *
-     * _.mapValues(users, function(o) { return o.age; });
-     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.mapValues(users, 'age');
-     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
-     */
-    function mapValues(object, iteratee) {
-      var result = {};
-      iteratee = getIteratee(iteratee, 3);
-
-      baseForOwn(object, function(value, key, object) {
-        baseAssignValue(result, key, iteratee(value, key, object));
-      });
-      return result;
-    }
-
-    /**
-     * This method is like `_.assign` except that it recursively merges own and
-     * inherited enumerable string keyed properties of source objects into the
-     * destination object. Source properties that resolve to `undefined` are
-     * skipped if a destination value exists. Array and plain object properties
-     * are merged recursively. Other objects and value types are overridden by
-     * assignment. Source objects are applied from left to right. Subsequent
-     * sources overwrite property assignments of previous sources.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.5.0
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} [sources] The source objects.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = {
-     *   'a': [{ 'b': 2 }, { 'd': 4 }]
-     * };
-     *
-     * var other = {
-     *   'a': [{ 'c': 3 }, { 'e': 5 }]
-     * };
-     *
-     * _.merge(object, other);
-     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
-     */
-    var merge = createAssigner(function(object, source, srcIndex) {
-      baseMerge(object, source, srcIndex);
-    });
-
-    /**
-     * This method is like `_.merge` except that it accepts `customizer` which
-     * is invoked to produce the merged values of the destination and source
-     * properties. If `customizer` returns `undefined`, merging is handled by the
-     * method instead. The `customizer` is invoked with six arguments:
-     * (objValue, srcValue, key, object, source, stack).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The destination object.
-     * @param {...Object} sources The source objects.
-     * @param {Function} customizer The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * function customizer(objValue, srcValue) {
-     *   if (_.isArray(objValue)) {
-     *     return objValue.concat(srcValue);
-     *   }
-     * }
-     *
-     * var object = { 'a': [1], 'b': [2] };
-     * var other = { 'a': [3], 'b': [4] };
-     *
-     * _.mergeWith(object, other, customizer);
-     * // => { 'a': [1, 3], 'b': [2, 4] }
-     */
-    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
-      baseMerge(object, source, srcIndex, customizer);
-    });
-
-    /**
-     * The opposite of `_.pick`; this method creates an object composed of the
-     * own and inherited enumerable property paths of `object` that are not omitted.
-     *
-     * **Note:** This method is considerably slower than `_.pick`.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {...(string|string[])} [paths] The property paths to omit.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': '2', 'c': 3 };
-     *
-     * _.omit(object, ['a', 'c']);
-     * // => { 'b': '2' }
-     */
-    var omit = flatRest(function(object, paths) {
-      var result = {};
-      if (object == null) {
-        return result;
-      }
-      var isDeep = false;
-      paths = arrayMap(paths, function(path) {
-        path = castPath(path, object);
-        isDeep || (isDeep = path.length > 1);
-        return path;
-      });
-      copyObject(object, getAllKeysIn(object), result);
-      if (isDeep) {
-        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
-      }
-      var length = paths.length;
-      while (length--) {
-        baseUnset(result, paths[length]);
-      }
-      return result;
-    });
-
-    /**
-     * The opposite of `_.pickBy`; this method creates an object composed of
-     * the own and inherited enumerable string keyed properties of `object` that
-     * `predicate` doesn't return truthy for. The predicate is invoked with two
-     * arguments: (value, key).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {Function} [predicate=_.identity] The function invoked per property.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': '2', 'c': 3 };
-     *
-     * _.omitBy(object, _.isNumber);
-     * // => { 'b': '2' }
-     */
-    function omitBy(object, predicate) {
-      return pickBy(object, negate(getIteratee(predicate)));
-    }
-
-    /**
-     * Creates an object composed of the picked `object` properties.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {...(string|string[])} [paths] The property paths to pick.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': '2', 'c': 3 };
-     *
-     * _.pick(object, ['a', 'c']);
-     * // => { 'a': 1, 'c': 3 }
-     */
-    var pick = flatRest(function(object, paths) {
-      return object == null ? {} : basePick(object, paths);
-    });
-
-    /**
-     * Creates an object composed of the `object` properties `predicate` returns
-     * truthy for. The predicate is invoked with two arguments: (value, key).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The source object.
-     * @param {Function} [predicate=_.identity] The function invoked per property.
-     * @returns {Object} Returns the new object.
-     * @example
-     *
-     * var object = { 'a': 1, 'b': '2', 'c': 3 };
-     *
-     * _.pickBy(object, _.isNumber);
-     * // => { 'a': 1, 'c': 3 }
-     */
-    function pickBy(object, predicate) {
-      if (object == null) {
-        return {};
-      }
-      var props = arrayMap(getAllKeysIn(object), function(prop) {
-        return [prop];
-      });
-      predicate = getIteratee(predicate);
-      return basePickBy(object, props, function(value, path) {
-        return predicate(value, path[0]);
-      });
-    }
-
-    /**
-     * This method is like `_.get` except that if the resolved value is a
-     * function it's invoked with the `this` binding of its parent object and
-     * its result is returned.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @param {Array|string} path The path of the property to resolve.
-     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
-     * @returns {*} Returns the resolved value.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
-     *
-     * _.result(object, 'a[0].b.c1');
-     * // => 3
-     *
-     * _.result(object, 'a[0].b.c2');
-     * // => 4
-     *
-     * _.result(object, 'a[0].b.c3', 'default');
-     * // => 'default'
-     *
-     * _.result(object, 'a[0].b.c3', _.constant('default'));
-     * // => 'default'
-     */
-    function result(object, path, defaultValue) {
-      path = castPath(path, object);
-
-      var index = -1,
-          length = path.length;
-
-      // Ensure the loop is entered when path is empty.
-      if (!length) {
-        length = 1;
-        object = undefined;
-      }
-      while (++index < length) {
-        var value = object == null ? undefined : object[toKey(path[index])];
-        if (value === undefined) {
-          index = length;
-          value = defaultValue;
-        }
-        object = isFunction(value) ? value.call(object) : value;
-      }
-      return object;
-    }
-
-    /**
-     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
-     * it's created. Arrays are created for missing index properties while objects
-     * are created for all other missing properties. Use `_.setWith` to customize
-     * `path` creation.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.7.0
-     * @category Object
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to set.
-     * @param {*} value The value to set.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
-     *
-     * _.set(object, 'a[0].b.c', 4);
-     * console.log(object.a[0].b.c);
-     * // => 4
-     *
-     * _.set(object, ['x', '0', 'y', 'z'], 5);
-     * console.log(object.x[0].y.z);
-     * // => 5
-     */
-    function set(object, path, value) {
-      return object == null ? object : baseSet(object, path, value);
-    }
-
-    /**
-     * This method is like `_.set` except that it accepts `customizer` which is
-     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
-     * path creation is handled by the method instead. The `customizer` is invoked
-     * with three arguments: (nsValue, key, nsObject).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to set.
-     * @param {*} value The value to set.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = {};
-     *
-     * _.setWith(object, '[0][1]', 'a', Object);
-     * // => { '0': { '1': 'a' } }
-     */
-    function setWith(object, path, value, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      return object == null ? object : baseSet(object, path, value, customizer);
-    }
-
-    /**
-     * Creates an array of own enumerable string keyed-value pairs for `object`
-     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
-     * entries are returned.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @alias entries
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the key-value pairs.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.toPairs(new Foo);
-     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
-     */
-    var toPairs = createToPairs(keys);
-
-    /**
-     * Creates an array of own and inherited enumerable string keyed-value pairs
-     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
-     * or set, its entries are returned.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @alias entriesIn
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the key-value pairs.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.toPairsIn(new Foo);
-     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
-     */
-    var toPairsIn = createToPairs(keysIn);
-
-    /**
-     * An alternative to `_.reduce`; this method transforms `object` to a new
-     * `accumulator` object which is the result of running each of its own
-     * enumerable string keyed properties thru `iteratee`, with each invocation
-     * potentially mutating the `accumulator` object. If `accumulator` is not
-     * provided, a new object with the same `[[Prototype]]` will be used. The
-     * iteratee is invoked with four arguments: (accumulator, value, key, object).
-     * Iteratee functions may exit iteration early by explicitly returning `false`.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.3.0
-     * @category Object
-     * @param {Object} object The object to iterate over.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @param {*} [accumulator] The custom accumulator value.
-     * @returns {*} Returns the accumulated value.
-     * @example
-     *
-     * _.transform([2, 3, 4], function(result, n) {
-     *   result.push(n *= n);
-     *   return n % 2 == 0;
-     * }, []);
-     * // => [4, 9]
-     *
-     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
-     *   (result[value] || (result[value] = [])).push(key);
-     * }, {});
-     * // => { '1': ['a', 'c'], '2': ['b'] }
-     */
-    function transform(object, iteratee, accumulator) {
-      var isArr = isArray(object),
-          isArrLike = isArr || isBuffer(object) || isTypedArray(object);
-
-      iteratee = getIteratee(iteratee, 4);
-      if (accumulator == null) {
-        var Ctor = object && object.constructor;
-        if (isArrLike) {
-          accumulator = isArr ? new Ctor : [];
-        }
-        else if (isObject(object)) {
-          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
-        }
-        else {
-          accumulator = {};
-        }
-      }
-      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
-        return iteratee(accumulator, value, index, object);
-      });
-      return accumulator;
-    }
-
-    /**
-     * Removes the property at `path` of `object`.
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Object
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to unset.
-     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
-     * _.unset(object, 'a[0].b.c');
-     * // => true
-     *
-     * console.log(object);
-     * // => { 'a': [{ 'b': {} }] };
-     *
-     * _.unset(object, ['a', '0', 'b', 'c']);
-     * // => true
-     *
-     * console.log(object);
-     * // => { 'a': [{ 'b': {} }] };
-     */
-    function unset(object, path) {
-      return object == null ? true : baseUnset(object, path);
-    }
-
-    /**
-     * This method is like `_.set` except that accepts `updater` to produce the
-     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
-     * is invoked with one argument: (value).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.6.0
-     * @category Object
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to set.
-     * @param {Function} updater The function to produce the updated value.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
-     *
-     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
-     * console.log(object.a[0].b.c);
-     * // => 9
-     *
-     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
-     * console.log(object.x[0].y.z);
-     * // => 0
-     */
-    function update(object, path, updater) {
-      return object == null ? object : baseUpdate(object, path, castFunction(updater));
-    }
-
-    /**
-     * This method is like `_.update` except that it accepts `customizer` which is
-     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
-     * path creation is handled by the method instead. The `customizer` is invoked
-     * with three arguments: (nsValue, key, nsObject).
-     *
-     * **Note:** This method mutates `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.6.0
-     * @category Object
-     * @param {Object} object The object to modify.
-     * @param {Array|string} path The path of the property to set.
-     * @param {Function} updater The function to produce the updated value.
-     * @param {Function} [customizer] The function to customize assigned values.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var object = {};
-     *
-     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
-     * // => { '0': { '1': 'a' } }
-     */
-    function updateWith(object, path, updater, customizer) {
-      customizer = typeof customizer == 'function' ? customizer : undefined;
-      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
-    }
-
-    /**
-     * Creates an array of the own enumerable string keyed property values of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property values.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.values(new Foo);
-     * // => [1, 2] (iteration order is not guaranteed)
-     *
-     * _.values('hi');
-     * // => ['h', 'i']
-     */
-    function values(object) {
-      return object == null ? [] : baseValues(object, keys(object));
-    }
-
-    /**
-     * Creates an array of the own and inherited enumerable string keyed property
-     * values of `object`.
-     *
-     * **Note:** Non-object values are coerced to objects.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Object
-     * @param {Object} object The object to query.
-     * @returns {Array} Returns the array of property values.
-     * @example
-     *
-     * function Foo() {
-     *   this.a = 1;
-     *   this.b = 2;
-     * }
-     *
-     * Foo.prototype.c = 3;
-     *
-     * _.valuesIn(new Foo);
-     * // => [1, 2, 3] (iteration order is not guaranteed)
-     */
-    function valuesIn(object) {
-      return object == null ? [] : baseValues(object, keysIn(object));
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Clamps `number` within the inclusive `lower` and `upper` bounds.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Number
-     * @param {number} number The number to clamp.
-     * @param {number} [lower] The lower bound.
-     * @param {number} upper The upper bound.
-     * @returns {number} Returns the clamped number.
-     * @example
-     *
-     * _.clamp(-10, -5, 5);
-     * // => -5
-     *
-     * _.clamp(10, -5, 5);
-     * // => 5
-     */
-    function clamp(number, lower, upper) {
-      if (upper === undefined) {
-        upper = lower;
-        lower = undefined;
-      }
-      if (upper !== undefined) {
-        upper = toNumber(upper);
-        upper = upper === upper ? upper : 0;
-      }
-      if (lower !== undefined) {
-        lower = toNumber(lower);
-        lower = lower === lower ? lower : 0;
-      }
-      return baseClamp(toNumber(number), lower, upper);
-    }
-
-    /**
-     * Checks if `n` is between `start` and up to, but not including, `end`. If
-     * `end` is not specified, it's set to `start` with `start` then set to `0`.
-     * If `start` is greater than `end` the params are swapped to support
-     * negative ranges.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.3.0
-     * @category Number
-     * @param {number} number The number to check.
-     * @param {number} [start=0] The start of the range.
-     * @param {number} end The end of the range.
-     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
-     * @see _.range, _.rangeRight
-     * @example
-     *
-     * _.inRange(3, 2, 4);
-     * // => true
-     *
-     * _.inRange(4, 8);
-     * // => true
-     *
-     * _.inRange(4, 2);
-     * // => false
-     *
-     * _.inRange(2, 2);
-     * // => false
-     *
-     * _.inRange(1.2, 2);
-     * // => true
-     *
-     * _.inRange(5.2, 4);
-     * // => false
-     *
-     * _.inRange(-3, -2, -6);
-     * // => true
-     */
-    function inRange(number, start, end) {
-      start = toFinite(start);
-      if (end === undefined) {
-        end = start;
-        start = 0;
-      } else {
-        end = toFinite(end);
-      }
-      number = toNumber(number);
-      return baseInRange(number, start, end);
-    }
-
-    /**
-     * Produces a random number between the inclusive `lower` and `upper` bounds.
-     * If only one argument is provided a number between `0` and the given number
-     * is returned. If `floating` is `true`, or either `lower` or `upper` are
-     * floats, a floating-point number is returned instead of an integer.
-     *
-     * **Note:** JavaScript follows the IEEE-754 standard for resolving
-     * floating-point values which can produce unexpected results.
-     *
-     * @static
-     * @memberOf _
-     * @since 0.7.0
-     * @category Number
-     * @param {number} [lower=0] The lower bound.
-     * @param {number} [upper=1] The upper bound.
-     * @param {boolean} [floating] Specify returning a floating-point number.
-     * @returns {number} Returns the random number.
-     * @example
-     *
-     * _.random(0, 5);
-     * // => an integer between 0 and 5
-     *
-     * _.random(5);
-     * // => also an integer between 0 and 5
-     *
-     * _.random(5, true);
-     * // => a floating-point number between 0 and 5
-     *
-     * _.random(1.2, 5.2);
-     * // => a floating-point number between 1.2 and 5.2
-     */
-    function random(lower, upper, floating) {
-      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
-        upper = floating = undefined;
-      }
-      if (floating === undefined) {
-        if (typeof upper == 'boolean') {
-          floating = upper;
-          upper = undefined;
-        }
-        else if (typeof lower == 'boolean') {
-          floating = lower;
-          lower = undefined;
-        }
-      }
-      if (lower === undefined && upper === undefined) {
-        lower = 0;
-        upper = 1;
-      }
-      else {
-        lower = toFinite(lower);
-        if (upper === undefined) {
-          upper = lower;
-          lower = 0;
-        } else {
-          upper = toFinite(upper);
-        }
-      }
-      if (lower > upper) {
-        var temp = lower;
-        lower = upper;
-        upper = temp;
-      }
-      if (floating || lower % 1 || upper % 1) {
-        var rand = nativeRandom();
-        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
-      }
-      return baseRandom(lower, upper);
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the camel cased string.
-     * @example
-     *
-     * _.camelCase('Foo Bar');
-     * // => 'fooBar'
-     *
-     * _.camelCase('--foo-bar--');
-     * // => 'fooBar'
-     *
-     * _.camelCase('__FOO_BAR__');
-     * // => 'fooBar'
-     */
-    var camelCase = createCompounder(function(result, word, index) {
-      word = word.toLowerCase();
-      return result + (index ? capitalize(word) : word);
-    });
-
-    /**
-     * Converts the first character of `string` to upper case and the remaining
-     * to lower case.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to capitalize.
-     * @returns {string} Returns the capitalized string.
-     * @example
-     *
-     * _.capitalize('FRED');
-     * // => 'Fred'
-     */
-    function capitalize(string) {
-      return upperFirst(toString(string).toLowerCase());
-    }
-
-    /**
-     * Deburrs `string` by converting
-     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
-     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
-     * letters to basic Latin letters and removing
-     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to deburr.
-     * @returns {string} Returns the deburred string.
-     * @example
-     *
-     * _.deburr('déjà vu');
-     * // => 'deja vu'
-     */
-    function deburr(string) {
-      string = toString(string);
-      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
-    }
-
-    /**
-     * Checks if `string` ends with the given target string.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to inspect.
-     * @param {string} [target] The string to search for.
-     * @param {number} [position=string.length] The position to search up to.
-     * @returns {boolean} Returns `true` if `string` ends with `target`,
-     *  else `false`.
-     * @example
-     *
-     * _.endsWith('abc', 'c');
-     * // => true
-     *
-     * _.endsWith('abc', 'b');
-     * // => false
-     *
-     * _.endsWith('abc', 'b', 2);
-     * // => true
-     */
-    function endsWith(string, target, position) {
-      string = toString(string);
-      target = baseToString(target);
-
-      var length = string.length;
-      position = position === undefined
-        ? length
-        : baseClamp(toInteger(position), 0, length);
-
-      var end = position;
-      position -= target.length;
-      return position >= 0 && string.slice(position, end) == target;
-    }
-
-    /**
-     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
-     * corresponding HTML entities.
-     *
-     * **Note:** No other characters are escaped. To escape additional
-     * characters use a third-party library like [_he_](https://mths.be/he).
-     *
-     * Though the ">" character is escaped for symmetry, characters like
-     * ">" and "/" don't need escaping in HTML and have no special meaning
-     * unless they're part of a tag or unquoted attribute value. See
-     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
-     * (under "semi-related fun fact") for more details.
-     *
-     * When working with HTML you should always
-     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
-     * XSS vectors.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The string to escape.
-     * @returns {string} Returns the escaped string.
-     * @example
-     *
-     * _.escape('fred, barney, & pebbles');
-     * // => 'fred, barney, &amp; pebbles'
-     */
-    function escape(string) {
-      string = toString(string);
-      return (string && reHasUnescapedHtml.test(string))
-        ? string.replace(reUnescapedHtml, escapeHtmlChar)
-        : string;
-    }
-
-    /**
-     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
-     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to escape.
-     * @returns {string} Returns the escaped string.
-     * @example
-     *
-     * _.escapeRegExp('[lodash](https://lodash.com/)');
-     * // => '\[lodash\]\(https://lodash\.com/\)'
-     */
-    function escapeRegExp(string) {
-      string = toString(string);
-      return (string && reHasRegExpChar.test(string))
-        ? string.replace(reRegExpChar, '\\$&')
-        : string;
-    }
-
-    /**
-     * Converts `string` to
-     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the kebab cased string.
-     * @example
-     *
-     * _.kebabCase('Foo Bar');
-     * // => 'foo-bar'
-     *
-     * _.kebabCase('fooBar');
-     * // => 'foo-bar'
-     *
-     * _.kebabCase('__FOO_BAR__');
-     * // => 'foo-bar'
-     */
-    var kebabCase = createCompounder(function(result, word, index) {
-      return result + (index ? '-' : '') + word.toLowerCase();
-    });
-
-    /**
-     * Converts `string`, as space separated words, to lower case.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the lower cased string.
-     * @example
-     *
-     * _.lowerCase('--Foo-Bar--');
-     * // => 'foo bar'
-     *
-     * _.lowerCase('fooBar');
-     * // => 'foo bar'
-     *
-     * _.lowerCase('__FOO_BAR__');
-     * // => 'foo bar'
-     */
-    var lowerCase = createCompounder(function(result, word, index) {
-      return result + (index ? ' ' : '') + word.toLowerCase();
-    });
-
-    /**
-     * Converts the first character of `string` to lower case.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the converted string.
-     * @example
-     *
-     * _.lowerFirst('Fred');
-     * // => 'fred'
-     *
-     * _.lowerFirst('FRED');
-     * // => 'fRED'
-     */
-    var lowerFirst = createCaseFirst('toLowerCase');
-
-    /**
-     * Pads `string` on the left and right sides if it's shorter than `length`.
-     * Padding characters are truncated if they can't be evenly divided by `length`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.pad('abc', 8);
-     * // => '  abc   '
-     *
-     * _.pad('abc', 8, '_-');
-     * // => '_-abc_-_'
-     *
-     * _.pad('abc', 3);
-     * // => 'abc'
-     */
-    function pad(string, length, chars) {
-      string = toString(string);
-      length = toInteger(length);
-
-      var strLength = length ? stringSize(string) : 0;
-      if (!length || strLength >= length) {
-        return string;
-      }
-      var mid = (length - strLength) / 2;
-      return (
-        createPadding(nativeFloor(mid), chars) +
-        string +
-        createPadding(nativeCeil(mid), chars)
-      );
-    }
-
-    /**
-     * Pads `string` on the right side if it's shorter than `length`. Padding
-     * characters are truncated if they exceed `length`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.padEnd('abc', 6);
-     * // => 'abc   '
-     *
-     * _.padEnd('abc', 6, '_-');
-     * // => 'abc_-_'
-     *
-     * _.padEnd('abc', 3);
-     * // => 'abc'
-     */
-    function padEnd(string, length, chars) {
-      string = toString(string);
-      length = toInteger(length);
-
-      var strLength = length ? stringSize(string) : 0;
-      return (length && strLength < length)
-        ? (string + createPadding(length - strLength, chars))
-        : string;
-    }
-
-    /**
-     * Pads `string` on the left side if it's shorter than `length`. Padding
-     * characters are truncated if they exceed `length`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to pad.
-     * @param {number} [length=0] The padding length.
-     * @param {string} [chars=' '] The string used as padding.
-     * @returns {string} Returns the padded string.
-     * @example
-     *
-     * _.padStart('abc', 6);
-     * // => '   abc'
-     *
-     * _.padStart('abc', 6, '_-');
-     * // => '_-_abc'
-     *
-     * _.padStart('abc', 3);
-     * // => 'abc'
-     */
-    function padStart(string, length, chars) {
-      string = toString(string);
-      length = toInteger(length);
-
-      var strLength = length ? stringSize(string) : 0;
-      return (length && strLength < length)
-        ? (createPadding(length - strLength, chars) + string)
-        : string;
-    }
-
-    /**
-     * Converts `string` to an integer of the specified radix. If `radix` is
-     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
-     * hexadecimal, in which case a `radix` of `16` is used.
-     *
-     * **Note:** This method aligns with the
-     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
-     *
-     * @static
-     * @memberOf _
-     * @since 1.1.0
-     * @category String
-     * @param {string} string The string to convert.
-     * @param {number} [radix=10] The radix to interpret `value` by.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {number} Returns the converted integer.
-     * @example
-     *
-     * _.parseInt('08');
-     * // => 8
-     *
-     * _.map(['6', '08', '10'], _.parseInt);
-     * // => [6, 8, 10]
-     */
-    function parseInt(string, radix, guard) {
-      if (guard || radix == null) {
-        radix = 0;
-      } else if (radix) {
-        radix = +radix;
-      }
-      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
-    }
-
-    /**
-     * Repeats the given string `n` times.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to repeat.
-     * @param {number} [n=1] The number of times to repeat the string.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {string} Returns the repeated string.
-     * @example
-     *
-     * _.repeat('*', 3);
-     * // => '***'
-     *
-     * _.repeat('abc', 2);
-     * // => 'abcabc'
-     *
-     * _.repeat('abc', 0);
-     * // => ''
-     */
-    function repeat(string, n, guard) {
-      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
-        n = 1;
-      } else {
-        n = toInteger(n);
-      }
-      return baseRepeat(toString(string), n);
-    }
-
-    /**
-     * Replaces matches for `pattern` in `string` with `replacement`.
-     *
-     * **Note:** This method is based on
-     * [`String#replace`](https://mdn.io/String/replace).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to modify.
-     * @param {RegExp|string} pattern The pattern to replace.
-     * @param {Function|string} replacement The match replacement.
-     * @returns {string} Returns the modified string.
-     * @example
-     *
-     * _.replace('Hi Fred', 'Fred', 'Barney');
-     * // => 'Hi Barney'
-     */
-    function replace() {
-      var args = arguments,
-          string = toString(args[0]);
-
-      return args.length < 3 ? string : string.replace(args[1], args[2]);
-    }
-
-    /**
-     * Converts `string` to
-     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the snake cased string.
-     * @example
-     *
-     * _.snakeCase('Foo Bar');
-     * // => 'foo_bar'
-     *
-     * _.snakeCase('fooBar');
-     * // => 'foo_bar'
-     *
-     * _.snakeCase('--FOO-BAR--');
-     * // => 'foo_bar'
-     */
-    var snakeCase = createCompounder(function(result, word, index) {
-      return result + (index ? '_' : '') + word.toLowerCase();
-    });
-
-    /**
-     * Splits `string` by `separator`.
-     *
-     * **Note:** This method is based on
-     * [`String#split`](https://mdn.io/String/split).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to split.
-     * @param {RegExp|string} separator The separator pattern to split by.
-     * @param {number} [limit] The length to truncate results to.
-     * @returns {Array} Returns the string segments.
-     * @example
-     *
-     * _.split('a-b-c', '-', 2);
-     * // => ['a', 'b']
-     */
-    function split(string, separator, limit) {
-      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
-        separator = limit = undefined;
-      }
-      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
-      if (!limit) {
-        return [];
-      }
-      string = toString(string);
-      if (string && (
-            typeof separator == 'string' ||
-            (separator != null && !isRegExp(separator))
-          )) {
-        separator = baseToString(separator);
-        if (!separator && hasUnicode(string)) {
-          return castSlice(stringToArray(string), 0, limit);
-        }
-      }
-      return string.split(separator, limit);
-    }
-
-    /**
-     * Converts `string` to
-     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
-     *
-     * @static
-     * @memberOf _
-     * @since 3.1.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the start cased string.
-     * @example
-     *
-     * _.startCase('--foo-bar--');
-     * // => 'Foo Bar'
-     *
-     * _.startCase('fooBar');
-     * // => 'Foo Bar'
-     *
-     * _.startCase('__FOO_BAR__');
-     * // => 'FOO BAR'
-     */
-    var startCase = createCompounder(function(result, word, index) {
-      return result + (index ? ' ' : '') + upperFirst(word);
-    });
-
-    /**
-     * Checks if `string` starts with the given target string.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to inspect.
-     * @param {string} [target] The string to search for.
-     * @param {number} [position=0] The position to search from.
-     * @returns {boolean} Returns `true` if `string` starts with `target`,
-     *  else `false`.
-     * @example
-     *
-     * _.startsWith('abc', 'a');
-     * // => true
-     *
-     * _.startsWith('abc', 'b');
-     * // => false
-     *
-     * _.startsWith('abc', 'b', 1);
-     * // => true
-     */
-    function startsWith(string, target, position) {
-      string = toString(string);
-      position = position == null
-        ? 0
-        : baseClamp(toInteger(position), 0, string.length);
-
-      target = baseToString(target);
-      return string.slice(position, position + target.length) == target;
-    }
-
-    /**
-     * Creates a compiled template function that can interpolate data properties
-     * in "interpolate" delimiters, HTML-escape interpolated data properties in
-     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
-     * properties may be accessed as free variables in the template. If a setting
-     * object is given, it takes precedence over `_.templateSettings` values.
-     *
-     * **Note:** In the development build `_.template` utilizes
-     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
-     * for easier debugging.
-     *
-     * For more information on precompiling templates see
-     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
-     *
-     * For more information on Chrome extension sandboxes see
-     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category String
-     * @param {string} [string=''] The template string.
-     * @param {Object} [options={}] The options object.
-     * @param {RegExp} [options.escape=_.templateSettings.escape]
-     *  The HTML "escape" delimiter.
-     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
-     *  The "evaluate" delimiter.
-     * @param {Object} [options.imports=_.templateSettings.imports]
-     *  An object to import into the template as free variables.
-     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
-     *  The "interpolate" delimiter.
-     * @param {string} [options.sourceURL='lodash.templateSources[n]']
-     *  The sourceURL of the compiled template.
-     * @param {string} [options.variable='obj']
-     *  The data object variable name.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Function} Returns the compiled template function.
-     * @example
-     *
-     * // Use the "interpolate" delimiter to create a compiled template.
-     * var compiled = _.template('hello <%= user %>!');
-     * compiled({ 'user': 'fred' });
-     * // => 'hello fred!'
-     *
-     * // Use the HTML "escape" delimiter to escape data property values.
-     * var compiled = _.template('<b><%- value %></b>');
-     * compiled({ 'value': '<script>' });
-     * // => '<b>&lt;script&gt;</b>'
-     *
-     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
-     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
-     * compiled({ 'users': ['fred', 'barney'] });
-     * // => '<li>fred</li><li>barney</li>'
-     *
-     * // Use the internal `print` function in "evaluate" delimiters.
-     * var compiled = _.template('<% print("hello " + user); %>!');
-     * compiled({ 'user': 'barney' });
-     * // => 'hello barney!'
-     *
-     * // Use the ES template literal delimiter as an "interpolate" delimiter.
-     * // Disable support by replacing the "interpolate" delimiter.
-     * var compiled = _.template('hello ${ user }!');
-     * compiled({ 'user': 'pebbles' });
-     * // => 'hello pebbles!'
-     *
-     * // Use backslashes to treat delimiters as plain text.
-     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
-     * compiled({ 'value': 'ignored' });
-     * // => '<%- value %>'
-     *
-     * // Use the `imports` option to import `jQuery` as `jq`.
-     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
-     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
-     * compiled({ 'users': ['fred', 'barney'] });
-     * // => '<li>fred</li><li>barney</li>'
-     *
-     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
-     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
-     * compiled(data);
-     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
-     *
-     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
-     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
-     * compiled.source;
-     * // => function(data) {
-     * //   var __t, __p = '';
-     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
-     * //   return __p;
-     * // }
-     *
-     * // Use custom template delimiters.
-     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
-     * var compiled = _.template('hello {{ user }}!');
-     * compiled({ 'user': 'mustache' });
-     * // => 'hello mustache!'
-     *
-     * // Use the `source` property to inline compiled templates for meaningful
-     * // line numbers in error messages and stack traces.
-     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
-     *   var JST = {\
-     *     "main": ' + _.template(mainText).source + '\
-     *   };\
-     * ');
-     */
-    function template(string, options, guard) {
-      // Based on John Resig's `tmpl` implementation
-      // (http://ejohn.org/blog/javascript-micro-templating/)
-      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
-      var settings = lodash.templateSettings;
-
-      if (guard && isIterateeCall(string, options, guard)) {
-        options = undefined;
-      }
-      string = toString(string);
-      options = assignInWith({}, options, settings, customDefaultsAssignIn);
-
-      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
-          importsKeys = keys(imports),
-          importsValues = baseValues(imports, importsKeys);
-
-      var isEscaping,
-          isEvaluating,
-          index = 0,
-          interpolate = options.interpolate || reNoMatch,
-          source = "__p += '";
-
-      // Compile the regexp to match each delimiter.
-      var reDelimiters = RegExp(
-        (options.escape || reNoMatch).source + '|' +
-        interpolate.source + '|' +
-        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
-        (options.evaluate || reNoMatch).source + '|$'
-      , 'g');
-
-      // Use a sourceURL for easier debugging.
-      var sourceURL = '//# sourceURL=' +
-        ('sourceURL' in options
-          ? options.sourceURL
-          : ('lodash.templateSources[' + (++templateCounter) + ']')
-        ) + '\n';
-
-      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
-        interpolateValue || (interpolateValue = esTemplateValue);
-
-        // Escape characters that can't be included in string literals.
-        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
-
-        // Replace delimiters with snippets.
-        if (escapeValue) {
-          isEscaping = true;
-          source += "' +\n__e(" + escapeValue + ") +\n'";
-        }
-        if (evaluateValue) {
-          isEvaluating = true;
-          source += "';\n" + evaluateValue + ";\n__p += '";
-        }
-        if (interpolateValue) {
-          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
-        }
-        index = offset + match.length;
-
-        // The JS engine embedded in Adobe products needs `match` returned in
-        // order to produce the correct `offset` value.
-        return match;
-      });
-
-      source += "';\n";
-
-      // If `variable` is not specified wrap a with-statement around the generated
-      // code to add the data object to the top of the scope chain.
-      var variable = options.variable;
-      if (!variable) {
-        source = 'with (obj) {\n' + source + '\n}\n';
-      }
-      // Cleanup code by stripping empty strings.
-      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
-        .replace(reEmptyStringMiddle, '$1')
-        .replace(reEmptyStringTrailing, '$1;');
-
-      // Frame code as the function body.
-      source = 'function(' + (variable || 'obj') + ') {\n' +
-        (variable
-          ? ''
-          : 'obj || (obj = {});\n'
-        ) +
-        "var __t, __p = ''" +
-        (isEscaping
-           ? ', __e = _.escape'
-           : ''
-        ) +
-        (isEvaluating
-          ? ', __j = Array.prototype.join;\n' +
-            "function print() { __p += __j.call(arguments, '') }\n"
-          : ';\n'
-        ) +
-        source +
-        'return __p\n}';
-
-      var result = attempt(function() {
-        return Function(importsKeys, sourceURL + 'return ' + source)
-          .apply(undefined, importsValues);
-      });
-
-      // Provide the compiled function's source by its `toString` method or
-      // the `source` property as a convenience for inlining compiled templates.
-      result.source = source;
-      if (isError(result)) {
-        throw result;
-      }
-      return result;
-    }
-
-    /**
-     * Converts `string`, as a whole, to lower case just like
-     * [String#toLowerCase](https://mdn.io/toLowerCase).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the lower cased string.
-     * @example
-     *
-     * _.toLower('--Foo-Bar--');
-     * // => '--foo-bar--'
-     *
-     * _.toLower('fooBar');
-     * // => 'foobar'
-     *
-     * _.toLower('__FOO_BAR__');
-     * // => '__foo_bar__'
-     */
-    function toLower(value) {
-      return toString(value).toLowerCase();
-    }
-
-    /**
-     * Converts `string`, as a whole, to upper case just like
-     * [String#toUpperCase](https://mdn.io/toUpperCase).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the upper cased string.
-     * @example
-     *
-     * _.toUpper('--foo-bar--');
-     * // => '--FOO-BAR--'
-     *
-     * _.toUpper('fooBar');
-     * // => 'FOOBAR'
-     *
-     * _.toUpper('__foo_bar__');
-     * // => '__FOO_BAR__'
-     */
-    function toUpper(value) {
-      return toString(value).toUpperCase();
-    }
-
-    /**
-     * Removes leading and trailing whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trim('  abc  ');
-     * // => 'abc'
-     *
-     * _.trim('-_-abc-_-', '_-');
-     * // => 'abc'
-     *
-     * _.map(['  foo  ', '  bar  '], _.trim);
-     * // => ['foo', 'bar']
-     */
-    function trim(string, chars, guard) {
-      string = toString(string);
-      if (string && (guard || chars === undefined)) {
-        return string.replace(reTrim, '');
-      }
-      if (!string || !(chars = baseToString(chars))) {
-        return string;
-      }
-      var strSymbols = stringToArray(string),
-          chrSymbols = stringToArray(chars),
-          start = charsStartIndex(strSymbols, chrSymbols),
-          end = charsEndIndex(strSymbols, chrSymbols) + 1;
-
-      return castSlice(strSymbols, start, end).join('');
-    }
-
-    /**
-     * Removes trailing whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trimEnd('  abc  ');
-     * // => '  abc'
-     *
-     * _.trimEnd('-_-abc-_-', '_-');
-     * // => '-_-abc'
-     */
-    function trimEnd(string, chars, guard) {
-      string = toString(string);
-      if (string && (guard || chars === undefined)) {
-        return string.replace(reTrimEnd, '');
-      }
-      if (!string || !(chars = baseToString(chars))) {
-        return string;
-      }
-      var strSymbols = stringToArray(string),
-          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
-
-      return castSlice(strSymbols, 0, end).join('');
-    }
-
-    /**
-     * Removes leading whitespace or specified characters from `string`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to trim.
-     * @param {string} [chars=whitespace] The characters to trim.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {string} Returns the trimmed string.
-     * @example
-     *
-     * _.trimStart('  abc  ');
-     * // => 'abc  '
-     *
-     * _.trimStart('-_-abc-_-', '_-');
-     * // => 'abc-_-'
-     */
-    function trimStart(string, chars, guard) {
-      string = toString(string);
-      if (string && (guard || chars === undefined)) {
-        return string.replace(reTrimStart, '');
-      }
-      if (!string || !(chars = baseToString(chars))) {
-        return string;
-      }
-      var strSymbols = stringToArray(string),
-          start = charsStartIndex(strSymbols, stringToArray(chars));
-
-      return castSlice(strSymbols, start).join('');
-    }
-
-    /**
-     * Truncates `string` if it's longer than the given maximum string length.
-     * The last characters of the truncated string are replaced with the omission
-     * string which defaults to "...".
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to truncate.
-     * @param {Object} [options={}] The options object.
-     * @param {number} [options.length=30] The maximum string length.
-     * @param {string} [options.omission='...'] The string to indicate text is omitted.
-     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
-     * @returns {string} Returns the truncated string.
-     * @example
-     *
-     * _.truncate('hi-diddly-ho there, neighborino');
-     * // => 'hi-diddly-ho there, neighbo...'
-     *
-     * _.truncate('hi-diddly-ho there, neighborino', {
-     *   'length': 24,
-     *   'separator': ' '
-     * });
-     * // => 'hi-diddly-ho there,...'
-     *
-     * _.truncate('hi-diddly-ho there, neighborino', {
-     *   'length': 24,
-     *   'separator': /,? +/
-     * });
-     * // => 'hi-diddly-ho there...'
-     *
-     * _.truncate('hi-diddly-ho there, neighborino', {
-     *   'omission': ' [...]'
-     * });
-     * // => 'hi-diddly-ho there, neig [...]'
-     */
-    function truncate(string, options) {
-      var length = DEFAULT_TRUNC_LENGTH,
-          omission = DEFAULT_TRUNC_OMISSION;
-
-      if (isObject(options)) {
-        var separator = 'separator' in options ? options.separator : separator;
-        length = 'length' in options ? toInteger(options.length) : length;
-        omission = 'omission' in options ? baseToString(options.omission) : omission;
-      }
-      string = toString(string);
-
-      var strLength = string.length;
-      if (hasUnicode(string)) {
-        var strSymbols = stringToArray(string);
-        strLength = strSymbols.length;
-      }
-      if (length >= strLength) {
-        return string;
-      }
-      var end = length - stringSize(omission);
-      if (end < 1) {
-        return omission;
-      }
-      var result = strSymbols
-        ? castSlice(strSymbols, 0, end).join('')
-        : string.slice(0, end);
-
-      if (separator === undefined) {
-        return result + omission;
-      }
-      if (strSymbols) {
-        end += (result.length - end);
-      }
-      if (isRegExp(separator)) {
-        if (string.slice(end).search(separator)) {
-          var match,
-              substring = result;
-
-          if (!separator.global) {
-            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
-          }
-          separator.lastIndex = 0;
-          while ((match = separator.exec(substring))) {
-            var newEnd = match.index;
-          }
-          result = result.slice(0, newEnd === undefined ? end : newEnd);
-        }
-      } else if (string.indexOf(baseToString(separator), end) != end) {
-        var index = result.lastIndexOf(separator);
-        if (index > -1) {
-          result = result.slice(0, index);
-        }
-      }
-      return result + omission;
-    }
-
-    /**
-     * The inverse of `_.escape`; this method converts the HTML entities
-     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
-     * their corresponding characters.
-     *
-     * **Note:** No other HTML entities are unescaped. To unescape additional
-     * HTML entities use a third-party library like [_he_](https://mths.be/he).
-     *
-     * @static
-     * @memberOf _
-     * @since 0.6.0
-     * @category String
-     * @param {string} [string=''] The string to unescape.
-     * @returns {string} Returns the unescaped string.
-     * @example
-     *
-     * _.unescape('fred, barney, &amp; pebbles');
-     * // => 'fred, barney, & pebbles'
-     */
-    function unescape(string) {
-      string = toString(string);
-      return (string && reHasEscapedHtml.test(string))
-        ? string.replace(reEscapedHtml, unescapeHtmlChar)
-        : string;
-    }
-
-    /**
-     * Converts `string`, as space separated words, to upper case.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the upper cased string.
-     * @example
-     *
-     * _.upperCase('--foo-bar');
-     * // => 'FOO BAR'
-     *
-     * _.upperCase('fooBar');
-     * // => 'FOO BAR'
-     *
-     * _.upperCase('__foo_bar__');
-     * // => 'FOO BAR'
-     */
-    var upperCase = createCompounder(function(result, word, index) {
-      return result + (index ? ' ' : '') + word.toUpperCase();
-    });
-
-    /**
-     * Converts the first character of `string` to upper case.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category String
-     * @param {string} [string=''] The string to convert.
-     * @returns {string} Returns the converted string.
-     * @example
-     *
-     * _.upperFirst('fred');
-     * // => 'Fred'
-     *
-     * _.upperFirst('FRED');
-     * // => 'FRED'
-     */
-    var upperFirst = createCaseFirst('toUpperCase');
-
-    /**
-     * Splits `string` into an array of its words.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category String
-     * @param {string} [string=''] The string to inspect.
-     * @param {RegExp|string} [pattern] The pattern to match words.
-     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
-     * @returns {Array} Returns the words of `string`.
-     * @example
-     *
-     * _.words('fred, barney, & pebbles');
-     * // => ['fred', 'barney', 'pebbles']
-     *
-     * _.words('fred, barney, & pebbles', /[^, ]+/g);
-     * // => ['fred', 'barney', '&', 'pebbles']
-     */
-    function words(string, pattern, guard) {
-      string = toString(string);
-      pattern = guard ? undefined : pattern;
-
-      if (pattern === undefined) {
-        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
-      }
-      return string.match(pattern) || [];
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Attempts to invoke `func`, returning either the result or the caught error
-     * object. Any additional arguments are provided to `func` when it's invoked.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Util
-     * @param {Function} func The function to attempt.
-     * @param {...*} [args] The arguments to invoke `func` with.
-     * @returns {*} Returns the `func` result or error object.
-     * @example
-     *
-     * // Avoid throwing errors for invalid selectors.
-     * var elements = _.attempt(function(selector) {
-     *   return document.querySelectorAll(selector);
-     * }, '>_>');
-     *
-     * if (_.isError(elements)) {
-     *   elements = [];
-     * }
-     */
-    var attempt = baseRest(function(func, args) {
-      try {
-        return apply(func, undefined, args);
-      } catch (e) {
-        return isError(e) ? e : new Error(e);
-      }
-    });
-
-    /**
-     * Binds methods of an object to the object itself, overwriting the existing
-     * method.
-     *
-     * **Note:** This method doesn't set the "length" property of bound functions.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {Object} object The object to bind and assign the bound methods to.
-     * @param {...(string|string[])} methodNames The object method names to bind.
-     * @returns {Object} Returns `object`.
-     * @example
-     *
-     * var view = {
-     *   'label': 'docs',
-     *   'click': function() {
-     *     console.log('clicked ' + this.label);
-     *   }
-     * };
-     *
-     * _.bindAll(view, ['click']);
-     * jQuery(element).on('click', view.click);
-     * // => Logs 'clicked docs' when clicked.
-     */
-    var bindAll = flatRest(function(object, methodNames) {
-      arrayEach(methodNames, function(key) {
-        key = toKey(key);
-        baseAssignValue(object, key, bind(object[key], object));
-      });
-      return object;
-    });
-
-    /**
-     * Creates a function that iterates over `pairs` and invokes the corresponding
-     * function of the first predicate to return truthy. The predicate-function
-     * pairs are invoked with the `this` binding and arguments of the created
-     * function.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {Array} pairs The predicate-function pairs.
-     * @returns {Function} Returns the new composite function.
-     * @example
-     *
-     * var func = _.cond([
-     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
-     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
-     *   [_.stubTrue,                      _.constant('no match')]
-     * ]);
-     *
-     * func({ 'a': 1, 'b': 2 });
-     * // => 'matches A'
-     *
-     * func({ 'a': 0, 'b': 1 });
-     * // => 'matches B'
-     *
-     * func({ 'a': '1', 'b': '2' });
-     * // => 'no match'
-     */
-    function cond(pairs) {
-      var length = pairs == null ? 0 : pairs.length,
-          toIteratee = getIteratee();
-
-      pairs = !length ? [] : arrayMap(pairs, function(pair) {
-        if (typeof pair[1] != 'function') {
-          throw new TypeError(FUNC_ERROR_TEXT);
-        }
-        return [toIteratee(pair[0]), pair[1]];
-      });
-
-      return baseRest(function(args) {
-        var index = -1;
-        while (++index < length) {
-          var pair = pairs[index];
-          if (apply(pair[0], this, args)) {
-            return apply(pair[1], this, args);
-          }
-        }
-      });
-    }
-
-    /**
-     * Creates a function that invokes the predicate properties of `source` with
-     * the corresponding property values of a given object, returning `true` if
-     * all predicates return truthy, else `false`.
-     *
-     * **Note:** The created function is equivalent to `_.conformsTo` with
-     * `source` partially applied.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {Object} source The object of property predicates to conform to.
-     * @returns {Function} Returns the new spec function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': 2, 'b': 1 },
-     *   { 'a': 1, 'b': 2 }
-     * ];
-     *
-     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
-     * // => [{ 'a': 1, 'b': 2 }]
-     */
-    function conforms(source) {
-      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
-    }
-
-    /**
-     * Creates a function that returns `value`.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.4.0
-     * @category Util
-     * @param {*} value The value to return from the new function.
-     * @returns {Function} Returns the new constant function.
-     * @example
-     *
-     * var objects = _.times(2, _.constant({ 'a': 1 }));
-     *
-     * console.log(objects);
-     * // => [{ 'a': 1 }, { 'a': 1 }]
-     *
-     * console.log(objects[0] === objects[1]);
-     * // => true
-     */
-    function constant(value) {
-      return function() {
-        return value;
-      };
-    }
-
-    /**
-     * Checks `value` to determine whether a default value should be returned in
-     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
-     * or `undefined`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.14.0
-     * @category Util
-     * @param {*} value The value to check.
-     * @param {*} defaultValue The default value.
-     * @returns {*} Returns the resolved value.
-     * @example
-     *
-     * _.defaultTo(1, 10);
-     * // => 1
-     *
-     * _.defaultTo(undefined, 10);
-     * // => 10
-     */
-    function defaultTo(value, defaultValue) {
-      return (value == null || value !== value) ? defaultValue : value;
-    }
-
-    /**
-     * Creates a function that returns the result of invoking the given functions
-     * with the `this` binding of the created function, where each successive
-     * invocation is supplied the return value of the previous.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Util
-     * @param {...(Function|Function[])} [funcs] The functions to invoke.
-     * @returns {Function} Returns the new composite function.
-     * @see _.flowRight
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var addSquare = _.flow([_.add, square]);
-     * addSquare(1, 2);
-     * // => 9
-     */
-    var flow = createFlow();
-
-    /**
-     * This method is like `_.flow` except that it creates a function that
-     * invokes the given functions from right to left.
-     *
-     * @static
-     * @since 3.0.0
-     * @memberOf _
-     * @category Util
-     * @param {...(Function|Function[])} [funcs] The functions to invoke.
-     * @returns {Function} Returns the new composite function.
-     * @see _.flow
-     * @example
-     *
-     * function square(n) {
-     *   return n * n;
-     * }
-     *
-     * var addSquare = _.flowRight([square, _.add]);
-     * addSquare(1, 2);
-     * // => 9
-     */
-    var flowRight = createFlow(true);
-
-    /**
-     * This method returns the first argument it receives.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {*} value Any value.
-     * @returns {*} Returns `value`.
-     * @example
-     *
-     * var object = { 'a': 1 };
-     *
-     * console.log(_.identity(object) === object);
-     * // => true
-     */
-    function identity(value) {
-      return value;
-    }
-
-    /**
-     * Creates a function that invokes `func` with the arguments of the created
-     * function. If `func` is a property name, the created function returns the
-     * property value for a given element. If `func` is an array or object, the
-     * created function returns `true` for elements that contain the equivalent
-     * source properties, otherwise it returns `false`.
-     *
-     * @static
-     * @since 4.0.0
-     * @memberOf _
-     * @category Util
-     * @param {*} [func=_.identity] The value to convert to a callback.
-     * @returns {Function} Returns the callback.
-     * @example
-     *
-     * var users = [
-     *   { 'user': 'barney', 'age': 36, 'active': true },
-     *   { 'user': 'fred',   'age': 40, 'active': false }
-     * ];
-     *
-     * // The `_.matches` iteratee shorthand.
-     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
-     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
-     *
-     * // The `_.matchesProperty` iteratee shorthand.
-     * _.filter(users, _.iteratee(['user', 'fred']));
-     * // => [{ 'user': 'fred', 'age': 40 }]
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.map(users, _.iteratee('user'));
-     * // => ['barney', 'fred']
-     *
-     * // Create custom iteratee shorthands.
-     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
-     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
-     *     return func.test(string);
-     *   };
-     * });
-     *
-     * _.filter(['abc', 'def'], /ef/);
-     * // => ['def']
-     */
-    function iteratee(func) {
-      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
-    }
-
-    /**
-     * Creates a function that performs a partial deep comparison between a given
-     * object and `source`, returning `true` if the given object has equivalent
-     * property values, else `false`.
-     *
-     * **Note:** The created function is equivalent to `_.isMatch` with `source`
-     * partially applied.
-     *
-     * Partial comparisons will match empty array and empty object `source`
-     * values against any array or object value, respectively. See `_.isEqual`
-     * for a list of supported value comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Util
-     * @param {Object} source The object of property values to match.
-     * @returns {Function} Returns the new spec function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': 1, 'b': 2, 'c': 3 },
-     *   { 'a': 4, 'b': 5, 'c': 6 }
-     * ];
-     *
-     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
-     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
-     */
-    function matches(source) {
-      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
-    }
-
-    /**
-     * Creates a function that performs a partial deep comparison between the
-     * value at `path` of a given object to `srcValue`, returning `true` if the
-     * object value is equivalent, else `false`.
-     *
-     * **Note:** Partial comparisons will match empty array and empty object
-     * `srcValue` values against any array or object value, respectively. See
-     * `_.isEqual` for a list of supported value comparisons.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.2.0
-     * @category Util
-     * @param {Array|string} path The path of the property to get.
-     * @param {*} srcValue The value to match.
-     * @returns {Function} Returns the new spec function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': 1, 'b': 2, 'c': 3 },
-     *   { 'a': 4, 'b': 5, 'c': 6 }
-     * ];
-     *
-     * _.find(objects, _.matchesProperty('a', 4));
-     * // => { 'a': 4, 'b': 5, 'c': 6 }
-     */
-    function matchesProperty(path, srcValue) {
-      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
-    }
-
-    /**
-     * Creates a function that invokes the method at `path` of a given object.
-     * Any additional arguments are provided to the invoked method.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.7.0
-     * @category Util
-     * @param {Array|string} path The path of the method to invoke.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new invoker function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': { 'b': _.constant(2) } },
-     *   { 'a': { 'b': _.constant(1) } }
-     * ];
-     *
-     * _.map(objects, _.method('a.b'));
-     * // => [2, 1]
-     *
-     * _.map(objects, _.method(['a', 'b']));
-     * // => [2, 1]
-     */
-    var method = baseRest(function(path, args) {
-      return function(object) {
-        return baseInvoke(object, path, args);
-      };
-    });
-
-    /**
-     * The opposite of `_.method`; this method creates a function that invokes
-     * the method at a given path of `object`. Any additional arguments are
-     * provided to the invoked method.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.7.0
-     * @category Util
-     * @param {Object} object The object to query.
-     * @param {...*} [args] The arguments to invoke the method with.
-     * @returns {Function} Returns the new invoker function.
-     * @example
-     *
-     * var array = _.times(3, _.constant),
-     *     object = { 'a': array, 'b': array, 'c': array };
-     *
-     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
-     * // => [2, 0]
-     *
-     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
-     * // => [2, 0]
-     */
-    var methodOf = baseRest(function(object, args) {
-      return function(path) {
-        return baseInvoke(object, path, args);
-      };
-    });
-
-    /**
-     * Adds all own enumerable string keyed function properties of a source
-     * object to the destination object. If `object` is a function, then methods
-     * are added to its prototype as well.
-     *
-     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
-     * avoid conflicts caused by modifying the original.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {Function|Object} [object=lodash] The destination object.
-     * @param {Object} source The object of functions to add.
-     * @param {Object} [options={}] The options object.
-     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
-     * @returns {Function|Object} Returns `object`.
-     * @example
-     *
-     * function vowels(string) {
-     *   return _.filter(string, function(v) {
-     *     return /[aeiou]/i.test(v);
-     *   });
-     * }
-     *
-     * _.mixin({ 'vowels': vowels });
-     * _.vowels('fred');
-     * // => ['e']
-     *
-     * _('fred').vowels().value();
-     * // => ['e']
-     *
-     * _.mixin({ 'vowels': vowels }, { 'chain': false });
-     * _('fred').vowels();
-     * // => ['e']
-     */
-    function mixin(object, source, options) {
-      var props = keys(source),
-          methodNames = baseFunctions(source, props);
-
-      if (options == null &&
-          !(isObject(source) && (methodNames.length || !props.length))) {
-        options = source;
-        source = object;
-        object = this;
-        methodNames = baseFunctions(source, keys(source));
-      }
-      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
-          isFunc = isFunction(object);
-
-      arrayEach(methodNames, function(methodName) {
-        var func = source[methodName];
-        object[methodName] = func;
-        if (isFunc) {
-          object.prototype[methodName] = function() {
-            var chainAll = this.__chain__;
-            if (chain || chainAll) {
-              var result = object(this.__wrapped__),
-                  actions = result.__actions__ = copyArray(this.__actions__);
-
-              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
-              result.__chain__ = chainAll;
-              return result;
-            }
-            return func.apply(object, arrayPush([this.value()], arguments));
-          };
-        }
-      });
-
-      return object;
-    }
-
-    /**
-     * Reverts the `_` variable to its previous value and returns a reference to
-     * the `lodash` function.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @returns {Function} Returns the `lodash` function.
-     * @example
-     *
-     * var lodash = _.noConflict();
-     */
-    function noConflict() {
-      if (root._ === this) {
-        root._ = oldDash;
-      }
-      return this;
-    }
-
-    /**
-     * This method returns `undefined`.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.3.0
-     * @category Util
-     * @example
-     *
-     * _.times(2, _.noop);
-     * // => [undefined, undefined]
-     */
-    function noop() {
-      // No operation performed.
-    }
-
-    /**
-     * Creates a function that gets the argument at index `n`. If `n` is negative,
-     * the nth argument from the end is returned.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {number} [n=0] The index of the argument to return.
-     * @returns {Function} Returns the new pass-thru function.
-     * @example
-     *
-     * var func = _.nthArg(1);
-     * func('a', 'b', 'c', 'd');
-     * // => 'b'
-     *
-     * var func = _.nthArg(-2);
-     * func('a', 'b', 'c', 'd');
-     * // => 'c'
-     */
-    function nthArg(n) {
-      n = toInteger(n);
-      return baseRest(function(args) {
-        return baseNth(args, n);
-      });
-    }
-
-    /**
-     * Creates a function that invokes `iteratees` with the arguments it receives
-     * and returns their results.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {...(Function|Function[])} [iteratees=[_.identity]]
-     *  The iteratees to invoke.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var func = _.over([Math.max, Math.min]);
-     *
-     * func(1, 2, 3, 4);
-     * // => [4, 1]
-     */
-    var over = createOver(arrayMap);
-
-    /**
-     * Creates a function that checks if **all** of the `predicates` return
-     * truthy when invoked with the arguments it receives.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {...(Function|Function[])} [predicates=[_.identity]]
-     *  The predicates to check.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var func = _.overEvery([Boolean, isFinite]);
-     *
-     * func('1');
-     * // => true
-     *
-     * func(null);
-     * // => false
-     *
-     * func(NaN);
-     * // => false
-     */
-    var overEvery = createOver(arrayEvery);
-
-    /**
-     * Creates a function that checks if **any** of the `predicates` return
-     * truthy when invoked with the arguments it receives.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {...(Function|Function[])} [predicates=[_.identity]]
-     *  The predicates to check.
-     * @returns {Function} Returns the new function.
-     * @example
-     *
-     * var func = _.overSome([Boolean, isFinite]);
-     *
-     * func('1');
-     * // => true
-     *
-     * func(null);
-     * // => true
-     *
-     * func(NaN);
-     * // => false
-     */
-    var overSome = createOver(arraySome);
-
-    /**
-     * Creates a function that returns the value at `path` of a given object.
-     *
-     * @static
-     * @memberOf _
-     * @since 2.4.0
-     * @category Util
-     * @param {Array|string} path The path of the property to get.
-     * @returns {Function} Returns the new accessor function.
-     * @example
-     *
-     * var objects = [
-     *   { 'a': { 'b': 2 } },
-     *   { 'a': { 'b': 1 } }
-     * ];
-     *
-     * _.map(objects, _.property('a.b'));
-     * // => [2, 1]
-     *
-     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
-     * // => [1, 2]
-     */
-    function property(path) {
-      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
-    }
-
-    /**
-     * The opposite of `_.property`; this method creates a function that returns
-     * the value at a given path of `object`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.0.0
-     * @category Util
-     * @param {Object} object The object to query.
-     * @returns {Function} Returns the new accessor function.
-     * @example
-     *
-     * var array = [0, 1, 2],
-     *     object = { 'a': array, 'b': array, 'c': array };
-     *
-     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
-     * // => [2, 0]
-     *
-     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
-     * // => [2, 0]
-     */
-    function propertyOf(object) {
-      return function(path) {
-        return object == null ? undefined : baseGet(object, path);
-      };
-    }
-
-    /**
-     * Creates an array of numbers (positive and/or negative) progressing from
-     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
-     * `start` is specified without an `end` or `step`. If `end` is not specified,
-     * it's set to `start` with `start` then set to `0`.
-     *
-     * **Note:** JavaScript follows the IEEE-754 standard for resolving
-     * floating-point values which can produce unexpected results.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {number} [start=0] The start of the range.
-     * @param {number} end The end of the range.
-     * @param {number} [step=1] The value to increment or decrement by.
-     * @returns {Array} Returns the range of numbers.
-     * @see _.inRange, _.rangeRight
-     * @example
-     *
-     * _.range(4);
-     * // => [0, 1, 2, 3]
-     *
-     * _.range(-4);
-     * // => [0, -1, -2, -3]
-     *
-     * _.range(1, 5);
-     * // => [1, 2, 3, 4]
-     *
-     * _.range(0, 20, 5);
-     * // => [0, 5, 10, 15]
-     *
-     * _.range(0, -4, -1);
-     * // => [0, -1, -2, -3]
-     *
-     * _.range(1, 4, 0);
-     * // => [1, 1, 1]
-     *
-     * _.range(0);
-     * // => []
-     */
-    var range = createRange();
-
-    /**
-     * This method is like `_.range` except that it populates values in
-     * descending order.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {number} [start=0] The start of the range.
-     * @param {number} end The end of the range.
-     * @param {number} [step=1] The value to increment or decrement by.
-     * @returns {Array} Returns the range of numbers.
-     * @see _.inRange, _.range
-     * @example
-     *
-     * _.rangeRight(4);
-     * // => [3, 2, 1, 0]
-     *
-     * _.rangeRight(-4);
-     * // => [-3, -2, -1, 0]
-     *
-     * _.rangeRight(1, 5);
-     * // => [4, 3, 2, 1]
-     *
-     * _.rangeRight(0, 20, 5);
-     * // => [15, 10, 5, 0]
-     *
-     * _.rangeRight(0, -4, -1);
-     * // => [-3, -2, -1, 0]
-     *
-     * _.rangeRight(1, 4, 0);
-     * // => [1, 1, 1]
-     *
-     * _.rangeRight(0);
-     * // => []
-     */
-    var rangeRight = createRange(true);
-
-    /**
-     * This method returns a new empty array.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.13.0
-     * @category Util
-     * @returns {Array} Returns the new empty array.
-     * @example
-     *
-     * var arrays = _.times(2, _.stubArray);
-     *
-     * console.log(arrays);
-     * // => [[], []]
-     *
-     * console.log(arrays[0] === arrays[1]);
-     * // => false
-     */
-    function stubArray() {
-      return [];
-    }
-
-    /**
-     * This method returns `false`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.13.0
-     * @category Util
-     * @returns {boolean} Returns `false`.
-     * @example
-     *
-     * _.times(2, _.stubFalse);
-     * // => [false, false]
-     */
-    function stubFalse() {
-      return false;
-    }
-
-    /**
-     * This method returns a new empty object.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.13.0
-     * @category Util
-     * @returns {Object} Returns the new empty object.
-     * @example
-     *
-     * var objects = _.times(2, _.stubObject);
-     *
-     * console.log(objects);
-     * // => [{}, {}]
-     *
-     * console.log(objects[0] === objects[1]);
-     * // => false
-     */
-    function stubObject() {
-      return {};
-    }
-
-    /**
-     * This method returns an empty string.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.13.0
-     * @category Util
-     * @returns {string} Returns the empty string.
-     * @example
-     *
-     * _.times(2, _.stubString);
-     * // => ['', '']
-     */
-    function stubString() {
-      return '';
-    }
-
-    /**
-     * This method returns `true`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.13.0
-     * @category Util
-     * @returns {boolean} Returns `true`.
-     * @example
-     *
-     * _.times(2, _.stubTrue);
-     * // => [true, true]
-     */
-    function stubTrue() {
-      return true;
-    }
-
-    /**
-     * Invokes the iteratee `n` times, returning an array of the results of
-     * each invocation. The iteratee is invoked with one argument; (index).
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {number} n The number of times to invoke `iteratee`.
-     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
-     * @returns {Array} Returns the array of results.
-     * @example
-     *
-     * _.times(3, String);
-     * // => ['0', '1', '2']
-     *
-     *  _.times(4, _.constant(0));
-     * // => [0, 0, 0, 0]
-     */
-    function times(n, iteratee) {
-      n = toInteger(n);
-      if (n < 1 || n > MAX_SAFE_INTEGER) {
-        return [];
-      }
-      var index = MAX_ARRAY_LENGTH,
-          length = nativeMin(n, MAX_ARRAY_LENGTH);
-
-      iteratee = getIteratee(iteratee);
-      n -= MAX_ARRAY_LENGTH;
-
-      var result = baseTimes(length, iteratee);
-      while (++index < n) {
-        iteratee(index);
-      }
-      return result;
-    }
-
-    /**
-     * Converts `value` to a property path array.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Util
-     * @param {*} value The value to convert.
-     * @returns {Array} Returns the new property path array.
-     * @example
-     *
-     * _.toPath('a.b.c');
-     * // => ['a', 'b', 'c']
-     *
-     * _.toPath('a[0].b.c');
-     * // => ['a', '0', 'b', 'c']
-     */
-    function toPath(value) {
-      if (isArray(value)) {
-        return arrayMap(value, toKey);
-      }
-      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
-    }
-
-    /**
-     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Util
-     * @param {string} [prefix=''] The value to prefix the ID with.
-     * @returns {string} Returns the unique ID.
-     * @example
-     *
-     * _.uniqueId('contact_');
-     * // => 'contact_104'
-     *
-     * _.uniqueId();
-     * // => '105'
-     */
-    function uniqueId(prefix) {
-      var id = ++idCounter;
-      return toString(prefix) + id;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * Adds two numbers.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.4.0
-     * @category Math
-     * @param {number} augend The first number in an addition.
-     * @param {number} addend The second number in an addition.
-     * @returns {number} Returns the total.
-     * @example
-     *
-     * _.add(6, 4);
-     * // => 10
-     */
-    var add = createMathOperation(function(augend, addend) {
-      return augend + addend;
-    }, 0);
-
-    /**
-     * Computes `number` rounded up to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.10.0
-     * @category Math
-     * @param {number} number The number to round up.
-     * @param {number} [precision=0] The precision to round up to.
-     * @returns {number} Returns the rounded up number.
-     * @example
-     *
-     * _.ceil(4.006);
-     * // => 5
-     *
-     * _.ceil(6.004, 2);
-     * // => 6.01
-     *
-     * _.ceil(6040, -2);
-     * // => 6100
-     */
-    var ceil = createRound('ceil');
-
-    /**
-     * Divide two numbers.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.7.0
-     * @category Math
-     * @param {number} dividend The first number in a division.
-     * @param {number} divisor The second number in a division.
-     * @returns {number} Returns the quotient.
-     * @example
-     *
-     * _.divide(6, 4);
-     * // => 1.5
-     */
-    var divide = createMathOperation(function(dividend, divisor) {
-      return dividend / divisor;
-    }, 1);
-
-    /**
-     * Computes `number` rounded down to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.10.0
-     * @category Math
-     * @param {number} number The number to round down.
-     * @param {number} [precision=0] The precision to round down to.
-     * @returns {number} Returns the rounded down number.
-     * @example
-     *
-     * _.floor(4.006);
-     * // => 4
-     *
-     * _.floor(0.046, 2);
-     * // => 0.04
-     *
-     * _.floor(4060, -2);
-     * // => 4000
-     */
-    var floor = createRound('floor');
-
-    /**
-     * Computes the maximum value of `array`. If `array` is empty or falsey,
-     * `undefined` is returned.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @returns {*} Returns the maximum value.
-     * @example
-     *
-     * _.max([4, 2, 8, 6]);
-     * // => 8
-     *
-     * _.max([]);
-     * // => undefined
-     */
-    function max(array) {
-      return (array && array.length)
-        ? baseExtremum(array, identity, baseGt)
-        : undefined;
-    }
-
-    /**
-     * This method is like `_.max` except that it accepts `iteratee` which is
-     * invoked for each element in `array` to generate the criterion by which
-     * the value is ranked. The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {*} Returns the maximum value.
-     * @example
-     *
-     * var objects = [{ 'n': 1 }, { 'n': 2 }];
-     *
-     * _.maxBy(objects, function(o) { return o.n; });
-     * // => { 'n': 2 }
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.maxBy(objects, 'n');
-     * // => { 'n': 2 }
-     */
-    function maxBy(array, iteratee) {
-      return (array && array.length)
-        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
-        : undefined;
-    }
-
-    /**
-     * Computes the mean of the values in `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @returns {number} Returns the mean.
-     * @example
-     *
-     * _.mean([4, 2, 8, 6]);
-     * // => 5
-     */
-    function mean(array) {
-      return baseMean(array, identity);
-    }
-
-    /**
-     * This method is like `_.mean` except that it accepts `iteratee` which is
-     * invoked for each element in `array` to generate the value to be averaged.
-     * The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.7.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {number} Returns the mean.
-     * @example
-     *
-     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
-     *
-     * _.meanBy(objects, function(o) { return o.n; });
-     * // => 5
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.meanBy(objects, 'n');
-     * // => 5
-     */
-    function meanBy(array, iteratee) {
-      return baseMean(array, getIteratee(iteratee, 2));
-    }
-
-    /**
-     * Computes the minimum value of `array`. If `array` is empty or falsey,
-     * `undefined` is returned.
-     *
-     * @static
-     * @since 0.1.0
-     * @memberOf _
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @returns {*} Returns the minimum value.
-     * @example
-     *
-     * _.min([4, 2, 8, 6]);
-     * // => 2
-     *
-     * _.min([]);
-     * // => undefined
-     */
-    function min(array) {
-      return (array && array.length)
-        ? baseExtremum(array, identity, baseLt)
-        : undefined;
-    }
-
-    /**
-     * This method is like `_.min` except that it accepts `iteratee` which is
-     * invoked for each element in `array` to generate the criterion by which
-     * the value is ranked. The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {*} Returns the minimum value.
-     * @example
-     *
-     * var objects = [{ 'n': 1 }, { 'n': 2 }];
-     *
-     * _.minBy(objects, function(o) { return o.n; });
-     * // => { 'n': 1 }
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.minBy(objects, 'n');
-     * // => { 'n': 1 }
-     */
-    function minBy(array, iteratee) {
-      return (array && array.length)
-        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
-        : undefined;
-    }
-
-    /**
-     * Multiply two numbers.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.7.0
-     * @category Math
-     * @param {number} multiplier The first number in a multiplication.
-     * @param {number} multiplicand The second number in a multiplication.
-     * @returns {number} Returns the product.
-     * @example
-     *
-     * _.multiply(6, 4);
-     * // => 24
-     */
-    var multiply = createMathOperation(function(multiplier, multiplicand) {
-      return multiplier * multiplicand;
-    }, 1);
-
-    /**
-     * Computes `number` rounded to `precision`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.10.0
-     * @category Math
-     * @param {number} number The number to round.
-     * @param {number} [precision=0] The precision to round to.
-     * @returns {number} Returns the rounded number.
-     * @example
-     *
-     * _.round(4.006);
-     * // => 4
-     *
-     * _.round(4.006, 2);
-     * // => 4.01
-     *
-     * _.round(4060, -2);
-     * // => 4100
-     */
-    var round = createRound('round');
-
-    /**
-     * Subtract two numbers.
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Math
-     * @param {number} minuend The first number in a subtraction.
-     * @param {number} subtrahend The second number in a subtraction.
-     * @returns {number} Returns the difference.
-     * @example
-     *
-     * _.subtract(6, 4);
-     * // => 2
-     */
-    var subtract = createMathOperation(function(minuend, subtrahend) {
-      return minuend - subtrahend;
-    }, 0);
-
-    /**
-     * Computes the sum of the values in `array`.
-     *
-     * @static
-     * @memberOf _
-     * @since 3.4.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @returns {number} Returns the sum.
-     * @example
-     *
-     * _.sum([4, 2, 8, 6]);
-     * // => 20
-     */
-    function sum(array) {
-      return (array && array.length)
-        ? baseSum(array, identity)
-        : 0;
-    }
-
-    /**
-     * This method is like `_.sum` except that it accepts `iteratee` which is
-     * invoked for each element in `array` to generate the value to be summed.
-     * The iteratee is invoked with one argument: (value).
-     *
-     * @static
-     * @memberOf _
-     * @since 4.0.0
-     * @category Math
-     * @param {Array} array The array to iterate over.
-     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
-     * @returns {number} Returns the sum.
-     * @example
-     *
-     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
-     *
-     * _.sumBy(objects, function(o) { return o.n; });
-     * // => 20
-     *
-     * // The `_.property` iteratee shorthand.
-     * _.sumBy(objects, 'n');
-     * // => 20
-     */
-    function sumBy(array, iteratee) {
-      return (array && array.length)
-        ? baseSum(array, getIteratee(iteratee, 2))
-        : 0;
-    }
-
-    /*------------------------------------------------------------------------*/
-
-    // Add methods that return wrapped values in chain sequences.
-    lodash.after = after;
-    lodash.ary = ary;
-    lodash.assign = assign;
-    lodash.assignIn = assignIn;
-    lodash.assignInWith = assignInWith;
-    lodash.assignWith = assignWith;
-    lodash.at = at;
-    lodash.before = before;
-    lodash.bind = bind;
-    lodash.bindAll = bindAll;
-    lodash.bindKey = bindKey;
-    lodash.castArray = castArray;
-    lodash.chain = chain;
-    lodash.chunk = chunk;
-    lodash.compact = compact;
-    lodash.concat = concat;
-    lodash.cond = cond;
-    lodash.conforms = conforms;
-    lodash.constant = constant;
-    lodash.countBy = countBy;
-    lodash.create = create;
-    lodash.curry = curry;
-    lodash.curryRight = curryRight;
-    lodash.debounce = debounce;
-    lodash.defaults = defaults;
-    lodash.defaultsDeep = defaultsDeep;
-    lodash.defer = defer;
-    lodash.delay = delay;
-    lodash.difference = difference;
-    lodash.differenceBy = differenceBy;
-    lodash.differenceWith = differenceWith;
-    lodash.drop = drop;
-    lodash.dropRight = dropRight;
-    lodash.dropRightWhile = dropRightWhile;
-    lodash.dropWhile = dropWhile;
-    lodash.fill = fill;
-    lodash.filter = filter;
-    lodash.flatMap = flatMap;
-    lodash.flatMapDeep = flatMapDeep;
-    lodash.flatMapDepth = flatMapDepth;
-    lodash.flatten = flatten;
-    lodash.flattenDeep = flattenDeep;
-    lodash.flattenDepth = flattenDepth;
-    lodash.flip = flip;
-    lodash.flow = flow;
-    lodash.flowRight = flowRight;
-    lodash.fromPairs = fromPairs;
-    lodash.functions = functions;
-    lodash.functionsIn = functionsIn;
-    lodash.groupBy = groupBy;
-    lodash.initial = initial;
-    lodash.intersection = intersection;
-    lodash.intersectionBy = intersectionBy;
-    lodash.intersectionWith = intersectionWith;
-    lodash.invert = invert;
-    lodash.invertBy = invertBy;
-    lodash.invokeMap = invokeMap;
-    lodash.iteratee = iteratee;
-    lodash.keyBy = keyBy;
-    lodash.keys = keys;
-    lodash.keysIn = keysIn;
-    lodash.map = map;
-    lodash.mapKeys = mapKeys;
-    lodash.mapValues = mapValues;
-    lodash.matches = matches;
-    lodash.matchesProperty = matchesProperty;
-    lodash.memoize = memoize;
-    lodash.merge = merge;
-    lodash.mergeWith = mergeWith;
-    lodash.method = method;
-    lodash.methodOf = methodOf;
-    lodash.mixin = mixin;
-    lodash.negate = negate;
-    lodash.nthArg = nthArg;
-    lodash.omit = omit;
-    lodash.omitBy = omitBy;
-    lodash.once = once;
-    lodash.orderBy = orderBy;
-    lodash.over = over;
-    lodash.overArgs = overArgs;
-    lodash.overEvery = overEvery;
-    lodash.overSome = overSome;
-    lodash.partial = partial;
-    lodash.partialRight = partialRight;
-    lodash.partition = partition;
-    lodash.pick = pick;
-    lodash.pickBy = pickBy;
-    lodash.property = property;
-    lodash.propertyOf = propertyOf;
-    lodash.pull = pull;
-    lodash.pullAll = pullAll;
-    lodash.pullAllBy = pullAllBy;
-    lodash.pullAllWith = pullAllWith;
-    lodash.pullAt = pullAt;
-    lodash.range = range;
-    lodash.rangeRight = rangeRight;
-    lodash.rearg = rearg;
-    lodash.reject = reject;
-    lodash.remove = remove;
-    lodash.rest = rest;
-    lodash.reverse = reverse;
-    lodash.sampleSize = sampleSize;
-    lodash.set = set;
-    lodash.setWith = setWith;
-    lodash.shuffle = shuffle;
-    lodash.slice = slice;
-    lodash.sortBy = sortBy;
-    lodash.sortedUniq = sortedUniq;
-    lodash.sortedUniqBy = sortedUniqBy;
-    lodash.split = split;
-    lodash.spread = spread;
-    lodash.tail = tail;
-    lodash.take = take;
-    lodash.takeRight = takeRight;
-    lodash.takeRightWhile = takeRightWhile;
-    lodash.takeWhile = takeWhile;
-    lodash.tap = tap;
-    lodash.throttle = throttle;
-    lodash.thru = thru;
-    lodash.toArray = toArray;
-    lodash.toPairs = toPairs;
-    lodash.toPairsIn = toPairsIn;
-    lodash.toPath = toPath;
-    lodash.toPlainObject = toPlainObject;
-    lodash.transform = transform;
-    lodash.unary = unary;
-    lodash.union = union;
-    lodash.unionBy = unionBy;
-    lodash.unionWith = unionWith;
-    lodash.uniq = uniq;
-    lodash.uniqBy = uniqBy;
-    lodash.uniqWith = uniqWith;
-    lodash.unset = unset;
-    lodash.unzip = unzip;
-    lodash.unzipWith = unzipWith;
-    lodash.update = update;
-    lodash.updateWith = updateWith;
-    lodash.values = values;
-    lodash.valuesIn = valuesIn;
-    lodash.without = without;
-    lodash.words = words;
-    lodash.wrap = wrap;
-    lodash.xor = xor;
-    lodash.xorBy = xorBy;
-    lodash.xorWith = xorWith;
-    lodash.zip = zip;
-    lodash.zipObject = zipObject;
-    lodash.zipObjectDeep = zipObjectDeep;
-    lodash.zipWith = zipWith;
-
-    // Add aliases.
-    lodash.entries = toPairs;
-    lodash.entriesIn = toPairsIn;
-    lodash.extend = assignIn;
-    lodash.extendWith = assignInWith;
-
-    // Add methods to `lodash.prototype`.
-    mixin(lodash, lodash);
-
-    /*------------------------------------------------------------------------*/
-
-    // Add methods that return unwrapped values in chain sequences.
-    lodash.add = add;
-    lodash.attempt = attempt;
-    lodash.camelCase = camelCase;
-    lodash.capitalize = capitalize;
-    lodash.ceil = ceil;
-    lodash.clamp = clamp;
-    lodash.clone = clone;
-    lodash.cloneDeep = cloneDeep;
-    lodash.cloneDeepWith = cloneDeepWith;
-    lodash.cloneWith = cloneWith;
-    lodash.conformsTo = conformsTo;
-    lodash.deburr = deburr;
-    lodash.defaultTo = defaultTo;
-    lodash.divide = divide;
-    lodash.endsWith = endsWith;
-    lodash.eq = eq;
-    lodash.escape = escape;
-    lodash.escapeRegExp = escapeRegExp;
-    lodash.every = every;
-    lodash.find = find;
-    lodash.findIndex = findIndex;
-    lodash.findKey = findKey;
-    lodash.findLast = findLast;
-    lodash.findLastIndex = findLastIndex;
-    lodash.findLastKey = findLastKey;
-    lodash.floor = floor;
-    lodash.forEach = forEach;
-    lodash.forEachRight = forEachRight;
-    lodash.forIn = forIn;
-    lodash.forInRight = forInRight;
-    lodash.forOwn = forOwn;
-    lodash.forOwnRight = forOwnRight;
-    lodash.get = get;
-    lodash.gt = gt;
-    lodash.gte = gte;
-    lodash.has = has;
-    lodash.hasIn = hasIn;
-    lodash.head = head;
-    lodash.identity = identity;
-    lodash.includes = includes;
-    lodash.indexOf = indexOf;
-    lodash.inRange = inRange;
-    lodash.invoke = invoke;
-    lodash.isArguments = isArguments;
-    lodash.isArray = isArray;
-    lodash.isArrayBuffer = isArrayBuffer;
-    lodash.isArrayLike = isArrayLike;
-    lodash.isArrayLikeObject = isArrayLikeObject;
-    lodash.isBoolean = isBoolean;
-    lodash.isBuffer = isBuffer;
-    lodash.isDate = isDate;
-    lodash.isElement = isElement;
-    lodash.isEmpty = isEmpty;
-    lodash.isEqual = isEqual;
-    lodash.isEqualWith = isEqualWith;
-    lodash.isError = isError;
-    lodash.isFinite = isFinite;
-    lodash.isFunction = isFunction;
-    lodash.isInteger = isInteger;
-    lodash.isLength = isLength;
-    lodash.isMap = isMap;
-    lodash.isMatch = isMatch;
-    lodash.isMatchWith = isMatchWith;
-    lodash.isNaN = isNaN;
-    lodash.isNative = isNative;
-    lodash.isNil = isNil;
-    lodash.isNull = isNull;
-    lodash.isNumber = isNumber;
-    lodash.isObject = isObject;
-    lodash.isObjectLike = isObjectLike;
-    lodash.isPlainObject = isPlainObject;
-    lodash.isRegExp = isRegExp;
-    lodash.isSafeInteger = isSafeInteger;
-    lodash.isSet = isSet;
-    lodash.isString = isString;
-    lodash.isSymbol = isSymbol;
-    lodash.isTypedArray = isTypedArray;
-    lodash.isUndefined = isUndefined;
-    lodash.isWeakMap = isWeakMap;
-    lodash.isWeakSet = isWeakSet;
-    lodash.join = join;
-    lodash.kebabCase = kebabCase;
-    lodash.last = last;
-    lodash.lastIndexOf = lastIndexOf;
-    lodash.lowerCase = lowerCase;
-    lodash.lowerFirst = lowerFirst;
-    lodash.lt = lt;
-    lodash.lte = lte;
-    lodash.max = max;
-    lodash.maxBy = maxBy;
-    lodash.mean = mean;
-    lodash.meanBy = meanBy;
-    lodash.min = min;
-    lodash.minBy = minBy;
-    lodash.stubArray = stubArray;
-    lodash.stubFalse = stubFalse;
-    lodash.stubObject = stubObject;
-    lodash.stubString = stubString;
-    lodash.stubTrue = stubTrue;
-    lodash.multiply = multiply;
-    lodash.nth = nth;
-    lodash.noConflict = noConflict;
-    lodash.noop = noop;
-    lodash.now = now;
-    lodash.pad = pad;
-    lodash.padEnd = padEnd;
-    lodash.padStart = padStart;
-    lodash.parseInt = parseInt;
-    lodash.random = random;
-    lodash.reduce = reduce;
-    lodash.reduceRight = reduceRight;
-    lodash.repeat = repeat;
-    lodash.replace = replace;
-    lodash.result = result;
-    lodash.round = round;
-    lodash.runInContext = runInContext;
-    lodash.sample = sample;
-    lodash.size = size;
-    lodash.snakeCase = snakeCase;
-    lodash.some = some;
-    lodash.sortedIndex = sortedIndex;
-    lodash.sortedIndexBy = sortedIndexBy;
-    lodash.sortedIndexOf = sortedIndexOf;
-    lodash.sortedLastIndex = sortedLastIndex;
-    lodash.sortedLastIndexBy = sortedLastIndexBy;
-    lodash.sortedLastIndexOf = sortedLastIndexOf;
-    lodash.startCase = startCase;
-    lodash.startsWith = startsWith;
-    lodash.subtract = subtract;
-    lodash.sum = sum;
-    lodash.sumBy = sumBy;
-    lodash.template = template;
-    lodash.times = times;
-    lodash.toFinite = toFinite;
-    lodash.toInteger = toInteger;
-    lodash.toLength = toLength;
-    lodash.toLower = toLower;
-    lodash.toNumber = toNumber;
-    lodash.toSafeInteger = toSafeInteger;
-    lodash.toString = toString;
-    lodash.toUpper = toUpper;
-    lodash.trim = trim;
-    lodash.trimEnd = trimEnd;
-    lodash.trimStart = trimStart;
-    lodash.truncate = truncate;
-    lodash.unescape = unescape;
-    lodash.uniqueId = uniqueId;
-    lodash.upperCase = upperCase;
-    lodash.upperFirst = upperFirst;
-
-    // Add aliases.
-    lodash.each = forEach;
-    lodash.eachRight = forEachRight;
-    lodash.first = head;
-
-    mixin(lodash, (function() {
-      var source = {};
-      baseForOwn(lodash, function(func, methodName) {
-        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
-          source[methodName] = func;
-        }
-      });
-      return source;
-    }()), { 'chain': false });
-
-    /*------------------------------------------------------------------------*/
-
-    /**
-     * The semantic version number.
-     *
-     * @static
-     * @memberOf _
-     * @type {string}
-     */
-    lodash.VERSION = VERSION;
-
-    // Assign default placeholders.
-    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
-      lodash[methodName].placeholder = lodash;
-    });
-
-    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
-    arrayEach(['drop', 'take'], function(methodName, index) {
-      LazyWrapper.prototype[methodName] = function(n) {
-        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);
-
-        var result = (this.__filtered__ && !index)
-          ? new LazyWrapper(this)
-          : this.clone();
-
-        if (result.__filtered__) {
-          result.__takeCount__ = nativeMin(n, result.__takeCount__);
-        } else {
-          result.__views__.push({
-            'size': nativeMin(n, MAX_ARRAY_LENGTH),
-            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
-          });
-        }
-        return result;
-      };
-
-      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
-        return this.reverse()[methodName](n).reverse();
-      };
-    });
-
-    // Add `LazyWrapper` methods that accept an `iteratee` value.
-    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
-      var type = index + 1,
-          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;
-
-      LazyWrapper.prototype[methodName] = function(iteratee) {
-        var result = this.clone();
-        result.__iteratees__.push({
-          'iteratee': getIteratee(iteratee, 3),
-          'type': type
-        });
-        result.__filtered__ = result.__filtered__ || isFilter;
-        return result;
-      };
-    });
-
-    // Add `LazyWrapper` methods for `_.head` and `_.last`.
-    arrayEach(['head', 'last'], function(methodName, index) {
-      var takeName = 'take' + (index ? 'Right' : '');
-
-      LazyWrapper.prototype[methodName] = function() {
-        return this[takeName](1).value()[0];
-      };
-    });
-
-    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
-    arrayEach(['initial', 'tail'], function(methodName, index) {
-      var dropName = 'drop' + (index ? '' : 'Right');
-
-      LazyWrapper.prototype[methodName] = function() {
-        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
-      };
-    });
-
-    LazyWrapper.prototype.compact = function() {
-      return this.filter(identity);
-    };
-
-    LazyWrapper.prototype.find = function(predicate) {
-      return this.filter(predicate).head();
-    };
-
-    LazyWrapper.prototype.findLast = function(predicate) {
-      return this.reverse().find(predicate);
-    };
-
-    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
-      if (typeof path == 'function') {
-        return new LazyWrapper(this);
-      }
-      return this.map(function(value) {
-        return baseInvoke(value, path, args);
-      });
-    });
-
-    LazyWrapper.prototype.reject = function(predicate) {
-      return this.filter(negate(getIteratee(predicate)));
-    };
-
-    LazyWrapper.prototype.slice = function(start, end) {
-      start = toInteger(start);
-
-      var result = this;
-      if (result.__filtered__ && (start > 0 || end < 0)) {
-        return new LazyWrapper(result);
-      }
-      if (start < 0) {
-        result = result.takeRight(-start);
-      } else if (start) {
-        result = result.drop(start);
-      }
-      if (end !== undefined) {
-        end = toInteger(end);
-        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
-      }
-      return result;
-    };
-
-    LazyWrapper.prototype.takeRightWhile = function(predicate) {
-      return this.reverse().takeWhile(predicate).reverse();
-    };
-
-    LazyWrapper.prototype.toArray = function() {
-      return this.take(MAX_ARRAY_LENGTH);
-    };
-
-    // Add `LazyWrapper` methods to `lodash.prototype`.
-    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
-      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
-          isTaker = /^(?:head|last)$/.test(methodName),
-          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
-          retUnwrapped = isTaker || /^find/.test(methodName);
-
-      if (!lodashFunc) {
-        return;
-      }
-      lodash.prototype[methodName] = function() {
-        var value = this.__wrapped__,
-            args = isTaker ? [1] : arguments,
-            isLazy = value instanceof LazyWrapper,
-            iteratee = args[0],
-            useLazy = isLazy || isArray(value);
-
-        var interceptor = function(value) {
-          var result = lodashFunc.apply(lodash, arrayPush([value], args));
-          return (isTaker && chainAll) ? result[0] : result;
-        };
-
-        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
-          // Avoid lazy use if the iteratee has a "length" value other than `1`.
-          isLazy = useLazy = false;
-        }
-        var chainAll = this.__chain__,
-            isHybrid = !!this.__actions__.length,
-            isUnwrapped = retUnwrapped && !chainAll,
-            onlyLazy = isLazy && !isHybrid;
-
-        if (!retUnwrapped && useLazy) {
-          value = onlyLazy ? value : new LazyWrapper(this);
-          var result = func.apply(value, args);
-          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
-          return new LodashWrapper(result, chainAll);
-        }
-        if (isUnwrapped && onlyLazy) {
-          return func.apply(this, args);
-        }
-        result = this.thru(interceptor);
-        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
-      };
-    });
-
-    // Add `Array` methods to `lodash.prototype`.
-    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
-      var func = arrayProto[methodName],
-          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
-          retUnwrapped = /^(?:pop|shift)$/.test(methodName);
-
-      lodash.prototype[methodName] = function() {
-        var args = arguments;
-        if (retUnwrapped && !this.__chain__) {
-          var value = this.value();
-          return func.apply(isArray(value) ? value : [], args);
-        }
-        return this[chainName](function(value) {
-          return func.apply(isArray(value) ? value : [], args);
-        });
-      };
-    });
-
-    // Map minified method names to their real names.
-    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
-      var lodashFunc = lodash[methodName];
-      if (lodashFunc) {
-        var key = (lodashFunc.name + ''),
-            names = realNames[key] || (realNames[key] = []);
-
-        names.push({ 'name': methodName, 'func': lodashFunc });
-      }
-    });
-
-    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
-      'name': 'wrapper',
-      'func': undefined
-    }];
-
-    // Add methods to `LazyWrapper`.
-    LazyWrapper.prototype.clone = lazyClone;
-    LazyWrapper.prototype.reverse = lazyReverse;
-    LazyWrapper.prototype.value = lazyValue;
-
-    // Add chain sequence methods to the `lodash` wrapper.
-    lodash.prototype.at = wrapperAt;
-    lodash.prototype.chain = wrapperChain;
-    lodash.prototype.commit = wrapperCommit;
-    lodash.prototype.next = wrapperNext;
-    lodash.prototype.plant = wrapperPlant;
-    lodash.prototype.reverse = wrapperReverse;
-    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
-
-    // Add lazy aliases.
-    lodash.prototype.first = lodash.prototype.head;
-
-    if (symIterator) {
-      lodash.prototype[symIterator] = wrapperToIterator;
-    }
-    return lodash;
-  });
-
-  /*--------------------------------------------------------------------------*/
-
-  // Export lodash.
-  var _ = runInContext();
-
-  // Some AMD build optimizers, like r.js, check for condition patterns like:
-  if (true) {
-    // Expose Lodash on the global object to prevent errors when Lodash is
-    // loaded by a script tag in the presence of an AMD loader.
-    // See http://requirejs.org/docs/errors.html#mismatch for more details.
-    // Use `_.noConflict` to remove Lodash from the global object.
-    root._ = _;
-
-    // Define as an anonymous module so, through path mapping, it can be
-    // referenced as the "underscore" module.
-    !(__WEBPACK_AMD_DEFINE_RESULT__ = function() {
-      return _;
-    }.call(exports, __webpack_require__, exports, module),
-				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-  }
-  // Check for `exports` after `define` in case a build optimizer adds it.
-  else if (freeModule) {
-    // Export for Node.js.
-    (freeModule.exports = _)._ = _;
-    // Export for CommonJS support.
-    freeExports._ = _;
-  }
-  else {
-    // Export to the global object.
-    root._ = _;
-  }
-}.call(this));
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(163)(module)))
-
-/***/ }),
-/* 39 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return EMPTY; });
-/* harmony export (immutable) */ __webpack_exports__["a"] = empty;
-/* unused harmony export emptyScheduled */
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/** PURE_IMPORTS_START _Observable PURE_IMPORTS_END */
-
-var EMPTY = /*@__PURE__*/ new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) { return subscriber.complete(); });
-function empty(scheduler) {
-    return scheduler ? emptyScheduled(scheduler) : EMPTY;
-}
-function emptyScheduled(scheduler) {
-    return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) { return scheduler.schedule(function () { return subscriber.complete(); }); });
-}
-//# sourceMappingURL=empty.js.map
-
-
-/***/ }),
-/* 40 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return async; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__AsyncAction__ = __webpack_require__(149);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__AsyncScheduler__ = __webpack_require__(150);
-/** PURE_IMPORTS_START _AsyncAction,_AsyncScheduler PURE_IMPORTS_END */
-
-
-var async = /*@__PURE__*/ new __WEBPACK_IMPORTED_MODULE_1__AsyncScheduler__["a" /* AsyncScheduler */](__WEBPACK_IMPORTED_MODULE_0__AsyncAction__["a" /* AsyncAction */]);
-//# sourceMappingURL=async.js.map
-
-
-/***/ }),
-/* 41 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return isArray; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-var isArray = Array.isArray || (function (x) { return x && typeof x.length === 'number'; });
-//# sourceMappingURL=isArray.js.map
-
-
-/***/ }),
-/* 42 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var dP = __webpack_require__(72);
-var createDesc = __webpack_require__(132);
-module.exports = __webpack_require__(51) ? function (object, key, value) {
-  return dP.f(object, key, createDesc(1, value));
-} : function (object, key, value) {
-  object[key] = value;
-  return object;
-};
-
-
-/***/ }),
-/* 43 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-function isNothing(subject) {
-  return (typeof subject === 'undefined') || (subject === null);
-}
-
-
-function isObject(subject) {
-  return (typeof subject === 'object') && (subject !== null);
-}
-
-
-function toArray(sequence) {
-  if (Array.isArray(sequence)) return sequence;
-  else if (isNothing(sequence)) return [];
-
-  return [ sequence ];
-}
-
-
-function extend(target, source) {
-  var index, length, key, sourceKeys;
-
-  if (source) {
-    sourceKeys = Object.keys(source);
-
-    for (index = 0, length = sourceKeys.length; index < length; index += 1) {
-      key = sourceKeys[index];
-      target[key] = source[key];
-    }
-  }
-
-  return target;
-}
-
-
-function repeat(string, count) {
-  var result = '', cycle;
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-  for (cycle = 0; cycle < count; cycle += 1) {
-    result += string;
-  }
-
-  return result;
-}
-
-
-function isNegativeZero(number) {
-  return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
-}
-
-
-module.exports.isNothing      = isNothing;
-module.exports.isObject       = isObject;
-module.exports.toArray        = toArray;
-module.exports.repeat         = repeat;
-module.exports.isNegativeZero = isNegativeZero;
-module.exports.extend         = extend;
-
-
-/***/ }),
-/* 44 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/*eslint-disable max-len*/
-
-var common        = __webpack_require__(43);
-var YAMLException = __webpack_require__(54);
-var Type          = __webpack_require__(10);
-
-
-function compileList(schema, name, result) {
-  var exclude = [];
-
-  schema.include.forEach(function (includedSchema) {
-    result = compileList(includedSchema, name, result);
-  });
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-  schema[name].forEach(function (currentType) {
-    result.forEach(function (previousType, previousIndex) {
-      if (previousType.tag === currentType.tag && previousType.kind === currentType.kind) {
-        exclude.push(previousIndex);
-      }
-    });
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-    result.push(currentType);
-  });
-
-  return result.filter(function (type, index) {
-    return exclude.indexOf(index) === -1;
-  });
-}
-
-
-function compileMap(/* lists... */) {
-  var result = {
-        scalar: {},
-        sequence: {},
-        mapping: {},
-        fallback: {}
-      }, index, length;
-
-  function collectType(type) {
-    result[type.kind][type.tag] = result['fallback'][type.tag] = type;
-  }
-
-  for (index = 0, length = arguments.length; index < length; index += 1) {
-    arguments[index].forEach(collectType);
-  }
-  return result;
-}
-
-
-function Schema(definition) {
-  this.include  = definition.include  || [];
-  this.implicit = definition.implicit || [];
-  this.explicit = definition.explicit || [];
-
-  this.implicit.forEach(function (type) {
-    if (type.loadKind && type.loadKind !== 'scalar') {
-      throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
-    }
-  });
-
-  this.compiledImplicit = compileList(this, 'implicit', []);
-  this.compiledExplicit = compileList(this, 'explicit', []);
-  this.compiledTypeMap  = compileMap(this.compiledImplicit, this.compiledExplicit);
-}
-
-
-Schema.DEFAULT = null;
-
-
-Schema.create = function createSchema() {
-  var schemas, types;
-
-  switch (arguments.length) {
-    case 1:
-      schemas = Schema.DEFAULT;
-      types = arguments[0];
-      break;
-
-    case 2:
-      schemas = arguments[0];
-      types = arguments[1];
-      break;
-
-    default:
-      throw new YAMLException('Wrong number of arguments for Schema.create function');
-  }
-
-  schemas = common.toArray(schemas);
-  types = common.toArray(types);
-
-  if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
-    throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
-  }
-
-  if (!types.every(function (type) { return type instanceof Type; })) {
-    throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
-  }
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-  return new Schema({
-    include: schemas,
-    explicit: types
-  });
-};
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-
-module.exports = Schema;
-
-
-/***/ }),
-/* 45 */
-/***/ (function(module, exports, __webpack_require__) {
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-/* eslint-disable node/no-deprecated-api */
-var buffer = __webpack_require__(64)
-var Buffer = buffer.Buffer
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-// alternative to using Object.keys for old browsers
-function copyProps (src, dst) {
-  for (var key in src) {
-    dst[key] = src[key]
-  }
-}
-if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
-  module.exports = buffer
-} else {
-  // Copy properties from require('buffer')
-  copyProps(buffer, exports)
-  exports.Buffer = SafeBuffer
-}
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-function SafeBuffer (arg, encodingOrOffset, length) {
-  return Buffer(arg, encodingOrOffset, length)
-}
-
-// Copy static methods from Buffer
-copyProps(Buffer, SafeBuffer)
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-SafeBuffer.from = function (arg, encodingOrOffset, length) {
-  if (typeof arg === 'number') {
-    throw new TypeError('Argument must not be a number')
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-  return Buffer(arg, encodingOrOffset, length)
-}
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-SafeBuffer.alloc = function (size, fill, encoding) {
-  if (typeof size !== 'number') {
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-  }
-  var buf = Buffer(size)
-  if (fill !== undefined) {
-    if (typeof encoding === 'string') {
-      buf.fill(fill, encoding)
-    } else {
-      buf.fill(fill)
-    }
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-SafeBuffer.allocUnsafe = function (size) {
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-/***/ }),
-/* 46 */
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
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-    };
-    return MapSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_1__Subscriber__["a" /* Subscriber */]));
-//# sourceMappingURL=map.js.map
-
-
-/***/ }),
-/* 48 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return errorObject; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-var errorObject = { e: {} };
-//# sourceMappingURL=errorObject.js.map
-
-
-/***/ }),
-/* 49 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = isScheduler;
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function isScheduler(value) {
-    return value && typeof value.schedule === 'function';
-}
-//# sourceMappingURL=isScheduler.js.map
-
-
-/***/ }),
-/* 50 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.wait = wait;
-exports.promisify = promisify;
-exports.queue = queue;
-function wait(delay) {
-  return new Promise(resolve => {
-    setTimeout(resolve, delay);
-  });
-}
-
-function promisify(fn, firstData) {
-  return function (...args) {
-    return new Promise(function (resolve, reject) {
-      args.push(function (err, ...result) {
-        let res = result;
-
-        if (result.length <= 1) {
-          res = result[0];
-        }
-
-        if (firstData) {
-          res = err;
-          err = null;
-        }
-
-        if (err) {
-          reject(err);
-        } else {
-          resolve(res);
-        }
-      });
-
-      fn.apply(null, args);
-    });
-  };
-}
-
-function queue(arr, promiseProducer, concurrency = Infinity) {
-  concurrency = Math.min(concurrency, arr.length);
-
-  // clone
-  arr = arr.slice();
-
-  const results = [];
-  let total = arr.length;
-  if (!total) {
-    return Promise.resolve(results);
-  }
-
-  return new Promise((resolve, reject) => {
-    for (let i = 0; i < concurrency; i++) {
-      next();
-    }
-
-    function next() {
-      const item = arr.shift();
-      const promise = promiseProducer(item);
-
-      promise.then(function (result) {
-        results.push(result);
-
-        total--;
-        if (total === 0) {
-          resolve(results);
-        } else {
-          if (arr.length) {
-            next();
-          }
-        }
-      }, reject);
-    }
-  });
-}
-
-/***/ }),
-/* 51 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Thank's IE8 for his funny defineProperty
-module.exports = !__webpack_require__(112)(function () {
-  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
-});
-
-
-/***/ }),
-/* 52 */
-/***/ (function(module, exports) {
-
-module.exports = function (it) {
-  return typeof it === 'object' ? it !== null : typeof it === 'function';
-};
-
-
-/***/ }),
-/* 53 */
-/***/ (function(module, exports) {
-
-module.exports = {};
-
-
-/***/ }),
-/* 54 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// YAML error class. http://stackoverflow.com/questions/8458984
-//
-
-
-function YAMLException(reason, mark) {
-  // Super constructor
-  Error.call(this);
-
-  this.name = 'YAMLException';
-  this.reason = reason;
-  this.mark = mark;
-  this.message = (this.reason || '(unknown reason)') + (this.mark ? ' ' + this.mark.toString() : '');
-
-  // Include stack trace in error object
-  if (Error.captureStackTrace) {
-    // Chrome and NodeJS
-    Error.captureStackTrace(this, this.constructor);
-  } else {
-    // FF, IE 10+ and Safari 6+. Fallback for others
-    this.stack = (new Error()).stack || '';
-  }
-}
-
-
-// Inherit from Error
-YAMLException.prototype = Object.create(Error.prototype);
-YAMLException.prototype.constructor = YAMLException;
-
-
-YAMLException.prototype.toString = function toString(compact) {
-  var result = this.name + ': ';
-
-  result += this.reason || '(unknown reason)';
-
-  if (!compact && this.mark) {
-    result += ' ' + this.mark.toString();
-  }
-
-  return result;
-};
-
-
-module.exports = YAMLException;
-
-
-/***/ }),
-/* 55 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// JS-YAML's default schema for `safeLoad` function.
-// It is not described in the YAML specification.
-//
-// This schema is based on standard YAML's Core schema and includes most of
-// extra types described at YAML tag repository. (http://yaml.org/type/)
-
-
-
-
-
-var Schema = __webpack_require__(44);
-
-
-module.exports = new Schema({
-  include: [
-    __webpack_require__(143)
-  ],
-  implicit: [
-    __webpack_require__(299),
-    __webpack_require__(292)
-  ],
-  explicit: [
-    __webpack_require__(284),
-    __webpack_require__(294),
-    __webpack_require__(295),
-    __webpack_require__(297)
-  ]
-});
-
-
-/***/ }),
-/* 56 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = tryCatch;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__errorObject__ = __webpack_require__(48);
-/** PURE_IMPORTS_START _errorObject PURE_IMPORTS_END */
-
-var tryCatchTarget;
-function tryCatcher() {
-    try {
-        return tryCatchTarget.apply(this, arguments);
-    }
-    catch (e) {
-        __WEBPACK_IMPORTED_MODULE_0__errorObject__["a" /* errorObject */].e = e;
-        return __WEBPACK_IMPORTED_MODULE_0__errorObject__["a" /* errorObject */];
-    }
-}
-function tryCatch(fn) {
-    tryCatchTarget = fn;
-    return tryCatcher;
-}
-//# sourceMappingURL=tryCatch.js.map
-
-
-/***/ }),
-/* 57 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.registryNames = exports.registries = undefined;
-
-var _yarnRegistry;
-
-function _load_yarnRegistry() {
-  return _yarnRegistry = _interopRequireDefault(__webpack_require__(559));
-}
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const registries = exports.registries = {
-  npm: (_npmRegistry || _load_npmRegistry()).default,
-  yarn: (_yarnRegistry || _load_yarnRegistry()).default
-};
-
-const registryNames = exports.registryNames = Object.keys(registries);
-
-/***/ }),
-/* 58 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.exec = exports.queue = undefined;
-exports.forkp = forkp;
-exports.spawnp = spawnp;
-exports.forwardSignalToSpawnedProcesses = forwardSignalToSpawnedProcesses;
-exports.spawn = spawn;
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _blockingQueue;
-
-function _load_blockingQueue() {
-  return _blockingQueue = _interopRequireDefault(__webpack_require__(110));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _promise;
-
-function _load_promise() {
-  return _promise = __webpack_require__(50);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-/* global child_process$spawnOpts */
-
-const child = __webpack_require__(331);
-
-const queue = exports.queue = new (_blockingQueue || _load_blockingQueue()).default('child', (_constants || _load_constants()).CHILD_CONCURRENCY);
-
-// TODO: this uid check is kinda whack
-let uid = 0;
-
-const exec = exports.exec = (0, (_promise || _load_promise()).promisify)(child.exec);
-
-function forkp(program, args, opts) {
-  return new Promise((resolve, reject) => {
-    const proc = child.fork(program, args, opts);
-
-    proc.on('error', error => {
-      reject(error);
-    });
-
-    proc.on('close', exitCode => {
-      resolve(exitCode);
-    });
-  });
-}
-
-function spawnp(program, args, opts) {
-  return new Promise((resolve, reject) => {
-    const proc = child.spawn(program, args, opts);
-
-    proc.on('error', error => {
-      reject(error);
-    });
-
-    proc.on('close', exitCode => {
-      resolve(exitCode);
-    });
-  });
-}
-
-const spawnedProcesses = {};
-
-function forwardSignalToSpawnedProcesses(signal) {
-  for (var _iterator = Object.keys(spawnedProcesses), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const key = _ref;
-
-    spawnedProcesses[key].kill(signal);
-  }
-}
-
-function spawn(program, args, opts = {}, onData) {
-  const key = opts.cwd || String(++uid);
-  return queue.push(key, () => new Promise((resolve, reject) => {
-    const proc = child.spawn(program, args, opts);
-    spawnedProcesses[key] = proc;
-
-    let processingDone = false;
-    let processClosed = false;
-    let err = null;
-
-    let stdout = '';
-
-    proc.on('error', err => {
-      if (err.code === 'ENOENT') {
-        reject(new (_errors || _load_errors()).ProcessSpawnError(`Couldn't find the binary ${program}`, err.code, program));
-      } else {
-        reject(err);
-      }
-    });
-
-    function updateStdout(chunk) {
-      stdout += chunk;
-      if (onData) {
-        onData(chunk);
-      }
-    }
-
-    function finish() {
-      delete spawnedProcesses[key];
-      if (err) {
-        reject(err);
-      } else {
-        resolve(stdout.trim());
-      }
-    }
-
-    if (typeof opts.process === 'function') {
-      opts.process(proc, updateStdout, reject, function () {
-        if (processClosed) {
-          finish();
-        } else {
-          processingDone = true;
-        }
-      });
-    } else {
-      if (proc.stderr) {
-        proc.stderr.on('data', updateStdout);
-      }
-
-      if (proc.stdout) {
-        proc.stdout.on('data', updateStdout);
-      }
-
-      processingDone = true;
-    }
-
-    proc.on('close', (code, signal) => {
-      if (signal || code >= 1) {
-        err = new (_errors || _load_errors()).ProcessTermError(['Command failed.', signal ? `Exit signal: ${signal}` : `Exit code: ${code}`, `Command: ${program}`, `Arguments: ${args.join(' ')}`, `Directory: ${opts.cwd || process.cwd()}`, `Output:\n${stdout.trim()}`].join('\n'));
-        err.EXIT_SIGNAL = signal;
-        err.EXIT_CODE = code;
-      }
-
-      if (processingDone || err) {
-        finish();
-      } else {
-        processClosed = true;
-      }
-    });
-  }));
-}
-
-/***/ }),
-/* 59 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-exports.default = function (rootCommandName, subCommands, usage = []) {
-  let run = (() => {
-    var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-      const subName = (0, (_misc || _load_misc()).camelCase)(args.shift() || '');
-      if (subName && subCommands[subName]) {
-        const command = subCommands[subName];
-        const res = yield command(config, reporter, flags, args);
-        if (res !== false) {
-          return Promise.resolve();
-        }
-      }
-
-      if (usage && usage.length) {
-        reporter.error(`${reporter.lang('usage')}:`);
-        for (var _iterator = usage, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-          var _ref2;
-
-          if (_isArray) {
-            if (_i >= _iterator.length) break;
-            _ref2 = _iterator[_i++];
-          } else {
-            _i = _iterator.next();
-            if (_i.done) break;
-            _ref2 = _i.value;
-          }
-
-          const msg = _ref2;
-
-          reporter.error(`yarn ${rootCommandName} ${msg}`);
-        }
-      }
-      return Promise.reject(new (_errors || _load_errors()).MessageError(reporter.lang('invalidCommand', subCommandNames.join(', '))));
-    });
-
-    return function run(_x, _x2, _x3, _x4) {
-      return _ref.apply(this, arguments);
-    };
-  })();
-
-  const subCommandNames = Object.keys(subCommands).map((_misc || _load_misc()).hyphenate);
-
-  function setFlags(commander) {
-    commander.usage(`${rootCommandName} [${subCommandNames.join('|')}] [flags]`);
-  }
-
-  function hasWrapper(commander, args) {
-    return true;
-  }
-
-  const examples = usage.map(cmd => {
-    return `${rootCommandName} ${cmd}`;
-  });
-
-  return { run, setFlags, hasWrapper, examples };
-};
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/***/ }),
-/* 60 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var global = __webpack_require__(17);
-var core = __webpack_require__(31);
-var ctx = __webpack_require__(70);
-var hide = __webpack_require__(42);
-var has = __webpack_require__(71);
-var PROTOTYPE = 'prototype';
-
-var $export = function (type, name, source) {
-  var IS_FORCED = type & $export.F;
-  var IS_GLOBAL = type & $export.G;
-  var IS_STATIC = type & $export.S;
-  var IS_PROTO = type & $export.P;
-  var IS_BIND = type & $export.B;
-  var IS_WRAP = type & $export.W;
-  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
-  var expProto = exports[PROTOTYPE];
-  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE];
-  var key, own, out;
-  if (IS_GLOBAL) source = name;
-  for (key in source) {
-    // contains in native
-    own = !IS_FORCED && target && target[key] !== undefined;
-    if (own && has(exports, key)) continue;
-    // export native or passed
-    out = own ? target[key] : source[key];
-    // prevent global pollution for namespaces
-    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
-    // bind timers to global for call from export context
-    : IS_BIND && own ? ctx(out, global)
-    // wrap global constructors for prevent change them in library
-    : IS_WRAP && target[key] == out ? (function (C) {
-      var F = function (a, b, c) {
-        if (this instanceof C) {
-          switch (arguments.length) {
-            case 0: return new C();
-            case 1: return new C(a);
-            case 2: return new C(a, b);
-          } return new C(a, b, c);
-        } return C.apply(this, arguments);
-      };
-      F[PROTOTYPE] = C[PROTOTYPE];
-      return F;
-    // make static versions for prototype methods
-    })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
-    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
-    if (IS_PROTO) {
-      (exports.virtual || (exports.virtual = {}))[key] = out;
-      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
-      if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out);
-    }
-  }
-};
-// type bitmap
-$export.F = 1;   // forced
-$export.G = 2;   // global
-$export.S = 4;   // static
-$export.P = 8;   // proto
-$export.B = 16;  // bind
-$export.W = 32;  // wrap
-$export.U = 64;  // safe
-$export.R = 128; // real proto method for `library`
-module.exports = $export;
-
-
-/***/ }),
-/* 61 */
-/***/ (function(module, exports, __webpack_require__) {
-
-try {
-  var util = __webpack_require__(3);
-  if (typeof util.inherits !== 'function') throw '';
-  module.exports = util.inherits;
-} catch (e) {
-  module.exports = __webpack_require__(275);
-}
-
-
-/***/ }),
-/* 62 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = from;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__util_isPromise__ = __webpack_require__(445);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__util_isArrayLike__ = __webpack_require__(442);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_isInteropObservable__ = __webpack_require__(928);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_isIterable__ = __webpack_require__(929);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__fromArray__ = __webpack_require__(85);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__fromPromise__ = __webpack_require__(830);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_7__fromIterable__ = __webpack_require__(828);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_8__fromObservable__ = __webpack_require__(829);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_9__util_subscribeTo__ = __webpack_require__(446);
-/** PURE_IMPORTS_START _Observable,_util_isPromise,_util_isArrayLike,_util_isInteropObservable,_util_isIterable,_fromArray,_fromPromise,_fromIterable,_fromObservable,_util_subscribeTo PURE_IMPORTS_END */
-
-
-
-
-
-
-
-
-
-
-function from(input, scheduler) {
-    if (!scheduler) {
-        if (input instanceof __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */]) {
-            return input;
-        }
-        return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_9__util_subscribeTo__["a" /* subscribeTo */])(input));
-    }
-    if (input != null) {
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_isInteropObservable__["a" /* isInteropObservable */])(input)) {
-            return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_8__fromObservable__["a" /* fromObservable */])(input, scheduler);
-        }
-        else if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_isPromise__["a" /* isPromise */])(input)) {
-            return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_6__fromPromise__["a" /* fromPromise */])(input, scheduler);
-        }
-        else if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__util_isArrayLike__["a" /* isArrayLike */])(input)) {
-            return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_5__fromArray__["a" /* fromArray */])(input, scheduler);
-        }
-        else if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_4__util_isIterable__["a" /* isIterable */])(input) || typeof input === 'string') {
-            return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_7__fromIterable__["a" /* fromIterable */])(input, scheduler);
-        }
-    }
-    throw new TypeError((input !== null && typeof input || input) + ' is not observable');
-}
-//# sourceMappingURL=from.js.map
-
-
-/***/ }),
-/* 63 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__internal_operators_audit__ = __webpack_require__(428);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "audit", function() { return __WEBPACK_IMPORTED_MODULE_0__internal_operators_audit__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__internal_operators_auditTime__ = __webpack_require__(838);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "auditTime", function() { return __WEBPACK_IMPORTED_MODULE_1__internal_operators_auditTime__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__internal_operators_buffer__ = __webpack_require__(839);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "buffer", function() { return __WEBPACK_IMPORTED_MODULE_2__internal_operators_buffer__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__internal_operators_bufferCount__ = __webpack_require__(840);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "bufferCount", function() { return __WEBPACK_IMPORTED_MODULE_3__internal_operators_bufferCount__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__internal_operators_bufferTime__ = __webpack_require__(841);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "bufferTime", function() { return __WEBPACK_IMPORTED_MODULE_4__internal_operators_bufferTime__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__internal_operators_bufferToggle__ = __webpack_require__(842);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "bufferToggle", function() { return __WEBPACK_IMPORTED_MODULE_5__internal_operators_bufferToggle__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__internal_operators_bufferWhen__ = __webpack_require__(843);
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "toArray", function() { return __WEBPACK_IMPORTED_MODULE_94__internal_operators_toArray__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_95__internal_operators_window__ = __webpack_require__(910);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "window", function() { return __WEBPACK_IMPORTED_MODULE_95__internal_operators_window__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_96__internal_operators_windowCount__ = __webpack_require__(911);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "windowCount", function() { return __WEBPACK_IMPORTED_MODULE_96__internal_operators_windowCount__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_97__internal_operators_windowTime__ = __webpack_require__(912);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "windowTime", function() { return __WEBPACK_IMPORTED_MODULE_97__internal_operators_windowTime__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_98__internal_operators_windowToggle__ = __webpack_require__(913);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "windowToggle", function() { return __WEBPACK_IMPORTED_MODULE_98__internal_operators_windowToggle__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_99__internal_operators_windowWhen__ = __webpack_require__(914);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "windowWhen", function() { return __WEBPACK_IMPORTED_MODULE_99__internal_operators_windowWhen__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_100__internal_operators_withLatestFrom__ = __webpack_require__(915);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "withLatestFrom", function() { return __WEBPACK_IMPORTED_MODULE_100__internal_operators_withLatestFrom__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_101__internal_operators_zip__ = __webpack_require__(916);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "zip", function() { return __WEBPACK_IMPORTED_MODULE_101__internal_operators_zip__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_102__internal_operators_zipAll__ = __webpack_require__(917);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "zipAll", function() { return __WEBPACK_IMPORTED_MODULE_102__internal_operators_zipAll__["a"]; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-
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-//# sourceMappingURL=index.js.map
-
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-/***/ }),
-/* 64 */
-/***/ (function(module, exports) {
-
-module.exports = require("buffer");
-
-/***/ }),
-/* 65 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-const Buffer = __webpack_require__(45).Buffer
-
-const crypto = __webpack_require__(11)
-const Transform = __webpack_require__(23).Transform
-
-const SPEC_ALGORITHMS = ['sha256', 'sha384', 'sha512']
-
-const BASE64_REGEX = /^[a-z0-9+/]+(?:=?=?)$/i
-const SRI_REGEX = /^([^-]+)-([^?]+)([?\S*]*)$/
-const STRICT_SRI_REGEX = /^([^-]+)-([A-Za-z0-9+/=]{44,88})(\?[\x21-\x7E]*)*$/
-const VCHAR_REGEX = /^[\x21-\x7E]+$/
-
-class Hash {
-  get isHash () { return true }
-  constructor (hash, opts) {
-    const strict = !!(opts && opts.strict)
-    this.source = hash.trim()
-    // 3.1. Integrity metadata (called "Hash" by ssri)
-    // https://w3c.github.io/webappsec-subresource-integrity/#integrity-metadata-description
-    const match = this.source.match(
-      strict
-      ? STRICT_SRI_REGEX
-      : SRI_REGEX
-    )
-    if (!match) { return }
-    if (strict && !SPEC_ALGORITHMS.some(a => a === match[1])) { return }
-    this.algorithm = match[1]
-    this.digest = match[2]
-
-    const rawOpts = match[3]
-    this.options = rawOpts ? rawOpts.slice(1).split('?') : []
-  }
-  hexDigest () {
-    return this.digest && Buffer.from(this.digest, 'base64').toString('hex')
-  }
-  toJSON () {
-    return this.toString()
-  }
-  toString (opts) {
-    if (opts && opts.strict) {
-      // Strict mode enforces the standard as close to the foot of the
-      // letter as it can.
-      if (!(
-        // The spec has very restricted productions for algorithms.
-        // https://www.w3.org/TR/CSP2/#source-list-syntax
-        SPEC_ALGORITHMS.some(x => x === this.algorithm) &&
-        // Usually, if someone insists on using a "different" base64, we
-        // leave it as-is, since there's multiple standards, and the
-        // specified is not a URL-safe variant.
-        // https://www.w3.org/TR/CSP2/#base64_value
-        this.digest.match(BASE64_REGEX) &&
-        // Option syntax is strictly visual chars.
-        // https://w3c.github.io/webappsec-subresource-integrity/#grammardef-option-expression
-        // https://tools.ietf.org/html/rfc5234#appendix-B.1
-        (this.options || []).every(opt => opt.match(VCHAR_REGEX))
-      )) {
-        return ''
-      }
-    }
-    const options = this.options && this.options.length
-    ? `?${this.options.join('?')}`
-    : ''
-    return `${this.algorithm}-${this.digest}${options}`
-  }
-}
-
-class Integrity {
-  get isIntegrity () { return true }
-  toJSON () {
-    return this.toString()
-  }
-  toString (opts) {
-    opts = opts || {}
-    let sep = opts.sep || ' '
-    if (opts.strict) {
-      // Entries must be separated by whitespace, according to spec.
-      sep = sep.replace(/\S+/g, ' ')
-    }
-    return Object.keys(this).map(k => {
-      return this[k].map(hash => {
-        return Hash.prototype.toString.call(hash, opts)
-      }).filter(x => x.length).join(sep)
-    }).filter(x => x.length).join(sep)
-  }
-  concat (integrity, opts) {
-    const other = typeof integrity === 'string'
-    ? integrity
-    : stringify(integrity, opts)
-    return parse(`${this.toString(opts)} ${other}`, opts)
-  }
-  hexDigest () {
-    return parse(this, {single: true}).hexDigest()
-  }
-  match (integrity, opts) {
-    const other = parse(integrity, opts)
-    const algo = other.pickAlgorithm(opts)
-    return (
-      this[algo] &&
-      other[algo] &&
-      this[algo].find(hash =>
-        other[algo].find(otherhash =>
-          hash.digest === otherhash.digest
-        )
-      )
-    ) || false
-  }
-  pickAlgorithm (opts) {
-    const pickAlgorithm = (opts && opts.pickAlgorithm) || getPrioritizedHash
-    const keys = Object.keys(this)
-    if (!keys.length) {
-      throw new Error(`No algorithms available for ${
-        JSON.stringify(this.toString())
-      }`)
-    }
-    return keys.reduce((acc, algo) => {
-      return pickAlgorithm(acc, algo) || acc
-    })
-  }
-}
-
-module.exports.parse = parse
-function parse (sri, opts) {
-  opts = opts || {}
-  if (typeof sri === 'string') {
-    return _parse(sri, opts)
-  } else if (sri.algorithm && sri.digest) {
-    const fullSri = new Integrity()
-    fullSri[sri.algorithm] = [sri]
-    return _parse(stringify(fullSri, opts), opts)
-  } else {
-    return _parse(stringify(sri, opts), opts)
-  }
-}
-
-function _parse (integrity, opts) {
-  // 3.4.3. Parse metadata
-  // https://w3c.github.io/webappsec-subresource-integrity/#parse-metadata
-  if (opts.single) {
-    return new Hash(integrity, opts)
-  }
-  return integrity.trim().split(/\s+/).reduce((acc, string) => {
-    const hash = new Hash(string, opts)
-    if (hash.algorithm && hash.digest) {
-      const algo = hash.algorithm
-      if (!acc[algo]) { acc[algo] = [] }
-      acc[algo].push(hash)
-    }
-    return acc
-  }, new Integrity())
-}
-
-module.exports.stringify = stringify
-function stringify (obj, opts) {
-  if (obj.algorithm && obj.digest) {
-    return Hash.prototype.toString.call(obj, opts)
-  } else if (typeof obj === 'string') {
-    return stringify(parse(obj, opts), opts)
-  } else {
-    return Integrity.prototype.toString.call(obj, opts)
-  }
-}
-
-module.exports.fromHex = fromHex
-function fromHex (hexDigest, algorithm, opts) {
-  const optString = (opts && opts.options && opts.options.length)
-  ? `?${opts.options.join('?')}`
-  : ''
-  return parse(
-    `${algorithm}-${
-      Buffer.from(hexDigest, 'hex').toString('base64')
-    }${optString}`, opts
-  )
-}
-
-module.exports.fromData = fromData
-function fromData (data, opts) {
-  opts = opts || {}
-  const algorithms = opts.algorithms || ['sha512']
-  const optString = opts.options && opts.options.length
-  ? `?${opts.options.join('?')}`
-  : ''
-  return algorithms.reduce((acc, algo) => {
-    const digest = crypto.createHash(algo).update(data).digest('base64')
-    const hash = new Hash(
-      `${algo}-${digest}${optString}`,
-       opts
-    )
-    if (hash.algorithm && hash.digest) {
-      const algo = hash.algorithm
-      if (!acc[algo]) { acc[algo] = [] }
-      acc[algo].push(hash)
-    }
-    return acc
-  }, new Integrity())
-}
-
-module.exports.fromStream = fromStream
-function fromStream (stream, opts) {
-  opts = opts || {}
-  const P = opts.Promise || Promise
-  const istream = integrityStream(opts)
-  return new P((resolve, reject) => {
-    stream.pipe(istream)
-    stream.on('error', reject)
-    istream.on('error', reject)
-    let sri
-    istream.on('integrity', s => { sri = s })
-    istream.on('end', () => resolve(sri))
-    istream.on('data', () => {})
-  })
-}
-
-module.exports.checkData = checkData
-function checkData (data, sri, opts) {
-  opts = opts || {}
-  sri = parse(sri, opts)
-  if (!Object.keys(sri).length) {
-    if (opts.error) {
-      throw Object.assign(
-        new Error('No valid integrity hashes to check against'), {
-          code: 'EINTEGRITY'
-        }
-      )
-    } else {
-      return false
-    }
-  }
-  const algorithm = sri.pickAlgorithm(opts)
-  const digest = crypto.createHash(algorithm).update(data).digest('base64')
-  const newSri = parse({algorithm, digest})
-  const match = newSri.match(sri, opts)
-  if (match || !opts.error) {
-    return match
-  } else if (typeof opts.size === 'number' && (data.length !== opts.size)) {
-    const err = new Error(`data size mismatch when checking ${sri}.\n  Wanted: ${opts.size}\n  Found: ${data.length}`)
-    err.code = 'EBADSIZE'
-    err.found = data.length
-    err.expected = opts.size
-    err.sri = sri
-    throw err
-  } else {
-    const err = new Error(`Integrity checksum failed when using ${algorithm}: Wanted ${sri}, but got ${newSri}. (${data.length} bytes)`)
-    err.code = 'EINTEGRITY'
-    err.found = newSri
-    err.expected = sri
-    err.algorithm = algorithm
-    err.sri = sri
-    throw err
-  }
-}
-
-module.exports.checkStream = checkStream
-function checkStream (stream, sri, opts) {
-  opts = opts || {}
-  const P = opts.Promise || Promise
-  const checker = integrityStream(Object.assign({}, opts, {
-    integrity: sri
-  }))
-  return new P((resolve, reject) => {
-    stream.pipe(checker)
-    stream.on('error', reject)
-    checker.on('error', reject)
-    let sri
-    checker.on('verified', s => { sri = s })
-    checker.on('end', () => resolve(sri))
-    checker.on('data', () => {})
-  })
-}
-
-module.exports.integrityStream = integrityStream
-function integrityStream (opts) {
-  opts = opts || {}
-  // For verification
-  const sri = opts.integrity && parse(opts.integrity, opts)
-  const goodSri = sri && Object.keys(sri).length
-  const algorithm = goodSri && sri.pickAlgorithm(opts)
-  const digests = goodSri && sri[algorithm]
-  // Calculating stream
-  const algorithms = Array.from(
-    new Set(
-      (opts.algorithms || ['sha512'])
-      .concat(algorithm ? [algorithm] : [])
-    )
-  )
-  const hashes = algorithms.map(crypto.createHash)
-  let streamSize = 0
-  const stream = new Transform({
-    transform (chunk, enc, cb) {
-      streamSize += chunk.length
-      hashes.forEach(h => h.update(chunk, enc))
-      cb(null, chunk, enc)
-    }
-  }).on('end', () => {
-    const optString = (opts.options && opts.options.length)
-    ? `?${opts.options.join('?')}`
-    : ''
-    const newSri = parse(hashes.map((h, i) => {
-      return `${algorithms[i]}-${h.digest('base64')}${optString}`
-    }).join(' '), opts)
-    // Integrity verification mode
-    const match = goodSri && newSri.match(sri, opts)
-    if (typeof opts.size === 'number' && streamSize !== opts.size) {
-      const err = new Error(`stream size mismatch when checking ${sri}.\n  Wanted: ${opts.size}\n  Found: ${streamSize}`)
-      err.code = 'EBADSIZE'
-      err.found = streamSize
-      err.expected = opts.size
-      err.sri = sri
-      stream.emit('error', err)
-    } else if (opts.integrity && !match) {
-      const err = new Error(`${sri} integrity checksum failed when using ${algorithm}: wanted ${digests} but got ${newSri}. (${streamSize} bytes)`)
-      err.code = 'EINTEGRITY'
-      err.found = newSri
-      err.expected = digests
-      err.algorithm = algorithm
-      err.sri = sri
-      stream.emit('error', err)
-    } else {
-      stream.emit('size', streamSize)
-      stream.emit('integrity', newSri)
-      match && stream.emit('verified', match)
-    }
-  })
-  return stream
-}
-
-module.exports.create = createIntegrity
-function createIntegrity (opts) {
-  opts = opts || {}
-  const algorithms = opts.algorithms || ['sha512']
-  const optString = opts.options && opts.options.length
-  ? `?${opts.options.join('?')}`
-  : ''
-
-  const hashes = algorithms.map(crypto.createHash)
-
-  return {
-    update: function (chunk, enc) {
-      hashes.forEach(h => h.update(chunk, enc))
-      return this
-    },
-    digest: function (enc) {
-      const integrity = algorithms.reduce((acc, algo) => {
-        const digest = hashes.shift().digest('base64')
-        const hash = new Hash(
-          `${algo}-${digest}${optString}`,
-          opts
-        )
-        if (hash.algorithm && hash.digest) {
-          const algo = hash.algorithm
-          if (!acc[algo]) { acc[algo] = [] }
-          acc[algo].push(hash)
-        }
-        return acc
-      }, new Integrity())
-
-      return integrity
-    }
-  }
-}
-
-const NODE_HASHES = new Set(crypto.getHashes())
-
-// This is a Best Effort™ at a reasonable priority for hash algos
-const DEFAULT_PRIORITY = [
-  'md5', 'whirlpool', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512',
-  // TODO - it's unclear _which_ of these Node will actually use as its name
-  //        for the algorithm, so we guesswork it based on the OpenSSL names.
-  'sha3',
-  'sha3-256', 'sha3-384', 'sha3-512',
-  'sha3_256', 'sha3_384', 'sha3_512'
-].filter(algo => NODE_HASHES.has(algo))
-
-function getPrioritizedHash (algo1, algo2) {
-  return DEFAULT_PRIORITY.indexOf(algo1.toLowerCase()) >= DEFAULT_PRIORITY.indexOf(algo2.toLowerCase())
-  ? algo1
-  : algo2
-}
-
-
-/***/ }),
-/* 66 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-// If you have no idea what ASN.1 or BER is, see this:
-// ftp://ftp.rsa.com/pub/pkcs/ascii/layman.asc
-
-var Ber = __webpack_require__(514);
-
-
-
-// --- Exported API
-
-module.exports = {
-
-  Ber: Ber,
-
-  BerReader: Ber.Reader,
-
-  BerWriter: Ber.Writer
-
-};
-
-
-/***/ }),
-/* 67 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.home = undefined;
-
-var _rootUser;
-
-function _load_rootUser() {
-  return _rootUser = _interopRequireDefault(__webpack_require__(223));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-const home = exports.home = __webpack_require__(46).homedir();
-
-const userHomeDir = (_rootUser || _load_rootUser()).default ? path.resolve('/usr/local/share') : home;
-
-exports.default = userHomeDir;
-
-/***/ }),
-/* 68 */
-/***/ (function(module, exports) {
-
-module.exports = function (it) {
-  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
-  return it;
-};
-
-
-/***/ }),
-/* 69 */
-/***/ (function(module, exports) {
-
-var toString = {}.toString;
-
-module.exports = function (it) {
-  return toString.call(it).slice(8, -1);
-};
-
-
-/***/ }),
-/* 70 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// optional / simple context binding
-var aFunction = __webpack_require__(68);
-module.exports = function (fn, that, length) {
-  aFunction(fn);
-  if (that === undefined) return fn;
-  switch (length) {
-    case 1: return function (a) {
-      return fn.call(that, a);
-    };
-    case 2: return function (a, b) {
-      return fn.call(that, a, b);
-    };
-    case 3: return function (a, b, c) {
-      return fn.call(that, a, b, c);
-    };
-  }
-  return function (/* ...args */) {
-    return fn.apply(that, arguments);
-  };
-};
-
-
-/***/ }),
-/* 71 */
-/***/ (function(module, exports) {
-
-var hasOwnProperty = {}.hasOwnProperty;
-module.exports = function (it, key) {
-  return hasOwnProperty.call(it, key);
-};
-
-
-/***/ }),
-/* 72 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var anObject = __webpack_require__(35);
-var IE8_DOM_DEFINE = __webpack_require__(238);
-var toPrimitive = __webpack_require__(255);
-var dP = Object.defineProperty;
-
-exports.f = __webpack_require__(51) ? Object.defineProperty : function defineProperty(O, P, Attributes) {
-  anObject(O);
-  P = toPrimitive(P, true);
-  anObject(Attributes);
-  if (IE8_DOM_DEFINE) try {
-    return dP(O, P, Attributes);
-  } catch (e) { /* empty */ }
-  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
-  if ('value' in Attributes) O[P] = Attributes.value;
-  return O;
-};
-
-
-/***/ }),
-/* 73 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// JS-YAML's default schema for `load` function.
-// It is not described in the YAML specification.
-//
-// This schema is based on JS-YAML's default safe schema and includes
-// JavaScript-specific types: !!js/undefined, !!js/regexp and !!js/function.
-//
-// Also this schema is used as default base schema at `Schema.create` function.
-
-
-
-
-
-var Schema = __webpack_require__(44);
-
-
-module.exports = Schema.DEFAULT = new Schema({
-  include: [
-    __webpack_require__(55)
-  ],
-  explicit: [
-    __webpack_require__(290),
-    __webpack_require__(289),
-    __webpack_require__(288)
-  ]
-});
-
-
-/***/ }),
-/* 74 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-var assert = __webpack_require__(16);
-var util = __webpack_require__(3);
-
-function FingerprintFormatError(fp, format) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, FingerprintFormatError);
-	this.name = 'FingerprintFormatError';
-	this.fingerprint = fp;
-	this.format = format;
-	this.message = 'Fingerprint format is not supported, or is invalid: ';
-	if (fp !== undefined)
-		this.message += ' fingerprint = ' + fp;
-	if (format !== undefined)
-		this.message += ' format = ' + format;
-}
-util.inherits(FingerprintFormatError, Error);
-
-function InvalidAlgorithmError(alg) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, InvalidAlgorithmError);
-	this.name = 'InvalidAlgorithmError';
-	this.algorithm = alg;
-	this.message = 'Algorithm "' + alg + '" is not supported';
-}
-util.inherits(InvalidAlgorithmError, Error);
-
-function KeyParseError(name, format, innerErr) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, KeyParseError);
-	this.name = 'KeyParseError';
-	this.format = format;
-	this.keyName = name;
-	this.innerErr = innerErr;
-	this.message = 'Failed to parse ' + name + ' as a valid ' + format +
-	    ' format key: ' + innerErr.message;
-}
-util.inherits(KeyParseError, Error);
-
-function SignatureParseError(type, format, innerErr) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, SignatureParseError);
-	this.name = 'SignatureParseError';
-	this.type = type;
-	this.format = format;
-	this.innerErr = innerErr;
-	this.message = 'Failed to parse the given data as a ' + type +
-	    ' signature in ' + format + ' format: ' + innerErr.message;
-}
-util.inherits(SignatureParseError, Error);
-
-function CertificateParseError(name, format, innerErr) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, CertificateParseError);
-	this.name = 'CertificateParseError';
-	this.format = format;
-	this.certName = name;
-	this.innerErr = innerErr;
-	this.message = 'Failed to parse ' + name + ' as a valid ' + format +
-	    ' format certificate: ' + innerErr.message;
-}
-util.inherits(CertificateParseError, Error);
-
-function KeyEncryptedError(name, format) {
-	if (Error.captureStackTrace)
-		Error.captureStackTrace(this, KeyEncryptedError);
-	this.name = 'KeyEncryptedError';
-	this.format = format;
-	this.keyName = name;
-	this.message = 'The ' + format + ' format key ' + name + ' is ' +
-	    'encrypted (password-protected), and no passphrase was ' +
-	    'provided in `options`';
-}
-util.inherits(KeyEncryptedError, Error);
-
-module.exports = {
-	FingerprintFormatError: FingerprintFormatError,
-	InvalidAlgorithmError: InvalidAlgorithmError,
-	KeyParseError: KeyParseError,
-	SignatureParseError: SignatureParseError,
-	KeyEncryptedError: KeyEncryptedError,
-	CertificateParseError: CertificateParseError
-};
-
-
-/***/ }),
-/* 75 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = Signature;
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var errs = __webpack_require__(74);
-var utils = __webpack_require__(26);
-var asn1 = __webpack_require__(66);
-var SSHBuffer = __webpack_require__(159);
-
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-var SignatureParseError = errs.SignatureParseError;
-
-function Signature(opts) {
-	assert.object(opts, 'options');
-	assert.arrayOfObject(opts.parts, 'options.parts');
-	assert.string(opts.type, 'options.type');
-
-	var partLookup = {};
-	for (var i = 0; i < opts.parts.length; ++i) {
-		var part = opts.parts[i];
-		partLookup[part.name] = part;
-	}
-
-	this.type = opts.type;
-	this.hashAlgorithm = opts.hashAlgo;
-	this.curve = opts.curve;
-	this.parts = opts.parts;
-	this.part = partLookup;
-}
-
-Signature.prototype.toBuffer = function (format) {
-	if (format === undefined)
-		format = 'asn1';
-	assert.string(format, 'format');
-
-	var buf;
-	var stype = 'ssh-' + this.type;
-
-	switch (this.type) {
-	case 'rsa':
-		switch (this.hashAlgorithm) {
-		case 'sha256':
-			stype = 'rsa-sha2-256';
-			break;
-		case 'sha512':
-			stype = 'rsa-sha2-512';
-			break;
-		case 'sha1':
-		case undefined:
-			break;
-		default:
-			throw (new Error('SSH signature ' +
-			    'format does not support hash ' +
-			    'algorithm ' + this.hashAlgorithm));
-		}
-		if (format === 'ssh') {
-			buf = new SSHBuffer({});
-			buf.writeString(stype);
-			buf.writePart(this.part.sig);
-			return (buf.toBuffer());
-		} else {
-			return (this.part.sig.data);
-		}
-		break;
-
-	case 'ed25519':
-		if (format === 'ssh') {
-			buf = new SSHBuffer({});
-			buf.writeString(stype);
-			buf.writePart(this.part.sig);
-			return (buf.toBuffer());
-		} else {
-			return (this.part.sig.data);
-		}
-		break;
-
-	case 'dsa':
-	case 'ecdsa':
-		var r, s;
-		if (format === 'asn1') {
-			var der = new asn1.BerWriter();
-			der.startSequence();
-			r = utils.mpNormalize(this.part.r.data);
-			s = utils.mpNormalize(this.part.s.data);
-			der.writeBuffer(r, asn1.Ber.Integer);
-			der.writeBuffer(s, asn1.Ber.Integer);
-			der.endSequence();
-			return (der.buffer);
-		} else if (format === 'ssh' && this.type === 'dsa') {
-			buf = new SSHBuffer({});
-			buf.writeString('ssh-dss');
-			r = this.part.r.data;
-			if (r.length > 20 && r[0] === 0x00)
-				r = r.slice(1);
-			s = this.part.s.data;
-			if (s.length > 20 && s[0] === 0x00)
-				s = s.slice(1);
-			if ((this.hashAlgorithm &&
-			    this.hashAlgorithm !== 'sha1') ||
-			    r.length + s.length !== 40) {
-				throw (new Error('OpenSSH only supports ' +
-				    'DSA signatures with SHA1 hash'));
-			}
-			buf.writeBuffer(Buffer.concat([r, s]));
-			return (buf.toBuffer());
-		} else if (format === 'ssh' && this.type === 'ecdsa') {
-			var inner = new SSHBuffer({});
-			r = this.part.r.data;
-			inner.writeBuffer(r);
-			inner.writePart(this.part.s);
-
-			buf = new SSHBuffer({});
-			/* XXX: find a more proper way to do this? */
-			var curve;
-			if (r[0] === 0x00)
-				r = r.slice(1);
-			var sz = r.length * 8;
-			if (sz === 256)
-				curve = 'nistp256';
-			else if (sz === 384)
-				curve = 'nistp384';
-			else if (sz === 528)
-				curve = 'nistp521';
-			buf.writeString('ecdsa-sha2-' + curve);
-			buf.writeBuffer(inner.toBuffer());
-			return (buf.toBuffer());
-		}
-		throw (new Error('Invalid signature format'));
-	default:
-		throw (new Error('Invalid signature data'));
-	}
-};
-
-Signature.prototype.toString = function (format) {
-	assert.optionalString(format, 'format');
-	return (this.toBuffer(format).toString('base64'));
-};
-
-Signature.parse = function (data, type, format) {
-	if (typeof (data) === 'string')
-		data = Buffer.from(data, 'base64');
-	assert.buffer(data, 'data');
-	assert.string(format, 'format');
-	assert.string(type, 'type');
-
-	var opts = {};
-	opts.type = type.toLowerCase();
-	opts.parts = [];
-
-	try {
-		assert.ok(data.length > 0, 'signature must not be empty');
-		switch (opts.type) {
-		case 'rsa':
-			return (parseOneNum(data, type, format, opts));
-		case 'ed25519':
-			return (parseOneNum(data, type, format, opts));
-
-		case 'dsa':
-		case 'ecdsa':
-			if (format === 'asn1')
-				return (parseDSAasn1(data, type, format, opts));
-			else if (opts.type === 'dsa')
-				return (parseDSA(data, type, format, opts));
-			else
-				return (parseECDSA(data, type, format, opts));
-
-		default:
-			throw (new InvalidAlgorithmError(type));
-		}
-
-	} catch (e) {
-		if (e instanceof InvalidAlgorithmError)
-			throw (e);
-		throw (new SignatureParseError(type, format, e));
-	}
-};
-
-function parseOneNum(data, type, format, opts) {
-	if (format === 'ssh') {
-		try {
-			var buf = new SSHBuffer({buffer: data});
-			var head = buf.readString();
-		} catch (e) {
-			/* fall through */
-		}
-		if (buf !== undefined) {
-			var msg = 'SSH signature does not match expected ' +
-			    'type (expected ' + type + ', got ' + head + ')';
-			switch (head) {
-			case 'ssh-rsa':
-				assert.strictEqual(type, 'rsa', msg);
-				opts.hashAlgo = 'sha1';
-				break;
-			case 'rsa-sha2-256':
-				assert.strictEqual(type, 'rsa', msg);
-				opts.hashAlgo = 'sha256';
-				break;
-			case 'rsa-sha2-512':
-				assert.strictEqual(type, 'rsa', msg);
-				opts.hashAlgo = 'sha512';
-				break;
-			case 'ssh-ed25519':
-				assert.strictEqual(type, 'ed25519', msg);
-				opts.hashAlgo = 'sha512';
-				break;
-			default:
-				throw (new Error('Unknown SSH signature ' +
-				    'type: ' + head));
-			}
-			var sig = buf.readPart();
-			assert.ok(buf.atEnd(), 'extra trailing bytes');
-			sig.name = 'sig';
-			opts.parts.push(sig);
-			return (new Signature(opts));
-		}
-	}
-	opts.parts.push({name: 'sig', data: data});
-	return (new Signature(opts));
-}
-
-function parseDSAasn1(data, type, format, opts) {
-	var der = new asn1.BerReader(data);
-	der.readSequence();
-	var r = der.readString(asn1.Ber.Integer, true);
-	var s = der.readString(asn1.Ber.Integer, true);
-
-	opts.parts.push({name: 'r', data: utils.mpNormalize(r)});
-	opts.parts.push({name: 's', data: utils.mpNormalize(s)});
-
-	return (new Signature(opts));
-}
-
-function parseDSA(data, type, format, opts) {
-	if (data.length != 40) {
-		var buf = new SSHBuffer({buffer: data});
-		var d = buf.readBuffer();
-		if (d.toString('ascii') === 'ssh-dss')
-			d = buf.readBuffer();
-		assert.ok(buf.atEnd(), 'extra trailing bytes');
-		assert.strictEqual(d.length, 40, 'invalid inner length');
-		data = d;
-	}
-	opts.parts.push({name: 'r', data: data.slice(0, 20)});
-	opts.parts.push({name: 's', data: data.slice(20, 40)});
-	return (new Signature(opts));
-}
-
-function parseECDSA(data, type, format, opts) {
-	var buf = new SSHBuffer({buffer: data});
-
-	var r, s;
-	var inner = buf.readBuffer();
-	var stype = inner.toString('ascii');
-	if (stype.slice(0, 6) === 'ecdsa-') {
-		var parts = stype.split('-');
-		assert.strictEqual(parts[0], 'ecdsa');
-		assert.strictEqual(parts[1], 'sha2');
-		opts.curve = parts[2];
-		switch (opts.curve) {
-		case 'nistp256':
-			opts.hashAlgo = 'sha256';
-			break;
-		case 'nistp384':
-			opts.hashAlgo = 'sha384';
-			break;
-		case 'nistp521':
-			opts.hashAlgo = 'sha512';
-			break;
-		default:
-			throw (new Error('Unsupported ECDSA curve: ' +
-			    opts.curve));
-		}
-		inner = buf.readBuffer();
-		assert.ok(buf.atEnd(), 'extra trailing bytes on outer');
-		buf = new SSHBuffer({buffer: inner});
-		r = buf.readPart();
-	} else {
-		r = {data: inner};
-	}
-
-	s = buf.readPart();
-	assert.ok(buf.atEnd(), 'extra trailing bytes');
-
-	r.name = 'r';
-	s.name = 's';
-
-	opts.parts.push(r);
-	opts.parts.push(s);
-	return (new Signature(opts));
-}
-
-Signature.isSignature = function (obj, ver) {
-	return (utils.isCompatible(obj, Signature, ver));
-};
-
-/*
- * API versions for Signature:
- * [1,0] -- initial ver
- * [2,0] -- support for rsa in full ssh format, compat with sshpk-agent
- *          hashAlgorithm property
- * [2,1] -- first tagged version
- */
-Signature.prototype._sshpkApiVersion = [2, 1];
-
-Signature._oldVersionDetect = function (obj) {
-	assert.func(obj.toBuffer);
-	if (obj.hasOwnProperty('hashAlgorithm'))
-		return ([2, 0]);
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 76 */
-/***/ (function(module, exports, __webpack_require__) {
-
-(function(nacl) {
-'use strict';
-
-// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.
-// Public domain.
-//
-// Implementation derived from TweetNaCl version 20140427.
-// See for details: http://tweetnacl.cr.yp.to/
-
-var gf = function(init) {
-  var i, r = new Float64Array(16);
-  if (init) for (i = 0; i < init.length; i++) r[i] = init[i];
-  return r;
-};
-
-//  Pluggable, initialized in high-level API below.
-var randombytes = function(/* x, n */) { throw new Error('no PRNG'); };
-
-var _0 = new Uint8Array(16);
-var _9 = new Uint8Array(32); _9[0] = 9;
-
-var gf0 = gf(),
-    gf1 = gf([1]),
-    _121665 = gf([0xdb41, 1]),
-    D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]),
-    D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]),
-    X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]),
-    Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]),
-    I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]);
-
-function ts64(x, i, h, l) {
-  x[i]   = (h >> 24) & 0xff;
-  x[i+1] = (h >> 16) & 0xff;
-  x[i+2] = (h >>  8) & 0xff;
-  x[i+3] = h & 0xff;
-  x[i+4] = (l >> 24)  & 0xff;
-  x[i+5] = (l >> 16)  & 0xff;
-  x[i+6] = (l >>  8)  & 0xff;
-  x[i+7] = l & 0xff;
-}
-
-function vn(x, xi, y, yi, n) {
-  var i,d = 0;
-  for (i = 0; i < n; i++) d |= x[xi+i]^y[yi+i];
-  return (1 & ((d - 1) >>> 8)) - 1;
-}
-
-function crypto_verify_16(x, xi, y, yi) {
-  return vn(x,xi,y,yi,16);
-}
-
-function crypto_verify_32(x, xi, y, yi) {
-  return vn(x,xi,y,yi,32);
-}
-
-function core_salsa20(o, p, k, c) {
-  var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
-      j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
-      j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
-      j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
-      j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
-      j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
-      j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
-      j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
-      j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
-      j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
-      j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
-      j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
-      j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
-      j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
-      j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
-      j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
-
-  var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
-      x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
-      x15 = j15, u;
-
-  for (var i = 0; i < 20; i += 2) {
-    u = x0 + x12 | 0;
-    x4 ^= u<<7 | u>>>(32-7);
-    u = x4 + x0 | 0;
-    x8 ^= u<<9 | u>>>(32-9);
-    u = x8 + x4 | 0;
-    x12 ^= u<<13 | u>>>(32-13);
-    u = x12 + x8 | 0;
-    x0 ^= u<<18 | u>>>(32-18);
-
-    u = x5 + x1 | 0;
-    x9 ^= u<<7 | u>>>(32-7);
-    u = x9 + x5 | 0;
-    x13 ^= u<<9 | u>>>(32-9);
-    u = x13 + x9 | 0;
-    x1 ^= u<<13 | u>>>(32-13);
-    u = x1 + x13 | 0;
-    x5 ^= u<<18 | u>>>(32-18);
-
-    u = x10 + x6 | 0;
-    x14 ^= u<<7 | u>>>(32-7);
-    u = x14 + x10 | 0;
-    x2 ^= u<<9 | u>>>(32-9);
-    u = x2 + x14 | 0;
-    x6 ^= u<<13 | u>>>(32-13);
-    u = x6 + x2 | 0;
-    x10 ^= u<<18 | u>>>(32-18);
-
-    u = x15 + x11 | 0;
-    x3 ^= u<<7 | u>>>(32-7);
-    u = x3 + x15 | 0;
-    x7 ^= u<<9 | u>>>(32-9);
-    u = x7 + x3 | 0;
-    x11 ^= u<<13 | u>>>(32-13);
-    u = x11 + x7 | 0;
-    x15 ^= u<<18 | u>>>(32-18);
-
-    u = x0 + x3 | 0;
-    x1 ^= u<<7 | u>>>(32-7);
-    u = x1 + x0 | 0;
-    x2 ^= u<<9 | u>>>(32-9);
-    u = x2 + x1 | 0;
-    x3 ^= u<<13 | u>>>(32-13);
-    u = x3 + x2 | 0;
-    x0 ^= u<<18 | u>>>(32-18);
-
-    u = x5 + x4 | 0;
-    x6 ^= u<<7 | u>>>(32-7);
-    u = x6 + x5 | 0;
-    x7 ^= u<<9 | u>>>(32-9);
-    u = x7 + x6 | 0;
-    x4 ^= u<<13 | u>>>(32-13);
-    u = x4 + x7 | 0;
-    x5 ^= u<<18 | u>>>(32-18);
-
-    u = x10 + x9 | 0;
-    x11 ^= u<<7 | u>>>(32-7);
-    u = x11 + x10 | 0;
-    x8 ^= u<<9 | u>>>(32-9);
-    u = x8 + x11 | 0;
-    x9 ^= u<<13 | u>>>(32-13);
-    u = x9 + x8 | 0;
-    x10 ^= u<<18 | u>>>(32-18);
-
-    u = x15 + x14 | 0;
-    x12 ^= u<<7 | u>>>(32-7);
-    u = x12 + x15 | 0;
-    x13 ^= u<<9 | u>>>(32-9);
-    u = x13 + x12 | 0;
-    x14 ^= u<<13 | u>>>(32-13);
-    u = x14 + x13 | 0;
-    x15 ^= u<<18 | u>>>(32-18);
-  }
-   x0 =  x0 +  j0 | 0;
-   x1 =  x1 +  j1 | 0;
-   x2 =  x2 +  j2 | 0;
-   x3 =  x3 +  j3 | 0;
-   x4 =  x4 +  j4 | 0;
-   x5 =  x5 +  j5 | 0;
-   x6 =  x6 +  j6 | 0;
-   x7 =  x7 +  j7 | 0;
-   x8 =  x8 +  j8 | 0;
-   x9 =  x9 +  j9 | 0;
-  x10 = x10 + j10 | 0;
-  x11 = x11 + j11 | 0;
-  x12 = x12 + j12 | 0;
-  x13 = x13 + j13 | 0;
-  x14 = x14 + j14 | 0;
-  x15 = x15 + j15 | 0;
-
-  o[ 0] = x0 >>>  0 & 0xff;
-  o[ 1] = x0 >>>  8 & 0xff;
-  o[ 2] = x0 >>> 16 & 0xff;
-  o[ 3] = x0 >>> 24 & 0xff;
-
-  o[ 4] = x1 >>>  0 & 0xff;
-  o[ 5] = x1 >>>  8 & 0xff;
-  o[ 6] = x1 >>> 16 & 0xff;
-  o[ 7] = x1 >>> 24 & 0xff;
-
-  o[ 8] = x2 >>>  0 & 0xff;
-  o[ 9] = x2 >>>  8 & 0xff;
-  o[10] = x2 >>> 16 & 0xff;
-  o[11] = x2 >>> 24 & 0xff;
-
-  o[12] = x3 >>>  0 & 0xff;
-  o[13] = x3 >>>  8 & 0xff;
-  o[14] = x3 >>> 16 & 0xff;
-  o[15] = x3 >>> 24 & 0xff;
-
-  o[16] = x4 >>>  0 & 0xff;
-  o[17] = x4 >>>  8 & 0xff;
-  o[18] = x4 >>> 16 & 0xff;
-  o[19] = x4 >>> 24 & 0xff;
-
-  o[20] = x5 >>>  0 & 0xff;
-  o[21] = x5 >>>  8 & 0xff;
-  o[22] = x5 >>> 16 & 0xff;
-  o[23] = x5 >>> 24 & 0xff;
-
-  o[24] = x6 >>>  0 & 0xff;
-  o[25] = x6 >>>  8 & 0xff;
-  o[26] = x6 >>> 16 & 0xff;
-  o[27] = x6 >>> 24 & 0xff;
-
-  o[28] = x7 >>>  0 & 0xff;
-  o[29] = x7 >>>  8 & 0xff;
-  o[30] = x7 >>> 16 & 0xff;
-  o[31] = x7 >>> 24 & 0xff;
-
-  o[32] = x8 >>>  0 & 0xff;
-  o[33] = x8 >>>  8 & 0xff;
-  o[34] = x8 >>> 16 & 0xff;
-  o[35] = x8 >>> 24 & 0xff;
-
-  o[36] = x9 >>>  0 & 0xff;
-  o[37] = x9 >>>  8 & 0xff;
-  o[38] = x9 >>> 16 & 0xff;
-  o[39] = x9 >>> 24 & 0xff;
-
-  o[40] = x10 >>>  0 & 0xff;
-  o[41] = x10 >>>  8 & 0xff;
-  o[42] = x10 >>> 16 & 0xff;
-  o[43] = x10 >>> 24 & 0xff;
-
-  o[44] = x11 >>>  0 & 0xff;
-  o[45] = x11 >>>  8 & 0xff;
-  o[46] = x11 >>> 16 & 0xff;
-  o[47] = x11 >>> 24 & 0xff;
-
-  o[48] = x12 >>>  0 & 0xff;
-  o[49] = x12 >>>  8 & 0xff;
-  o[50] = x12 >>> 16 & 0xff;
-  o[51] = x12 >>> 24 & 0xff;
-
-  o[52] = x13 >>>  0 & 0xff;
-  o[53] = x13 >>>  8 & 0xff;
-  o[54] = x13 >>> 16 & 0xff;
-  o[55] = x13 >>> 24 & 0xff;
-
-  o[56] = x14 >>>  0 & 0xff;
-  o[57] = x14 >>>  8 & 0xff;
-  o[58] = x14 >>> 16 & 0xff;
-  o[59] = x14 >>> 24 & 0xff;
-
-  o[60] = x15 >>>  0 & 0xff;
-  o[61] = x15 >>>  8 & 0xff;
-  o[62] = x15 >>> 16 & 0xff;
-  o[63] = x15 >>> 24 & 0xff;
-}
-
-function core_hsalsa20(o,p,k,c) {
-  var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
-      j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
-      j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
-      j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
-      j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
-      j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
-      j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
-      j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
-      j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
-      j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
-      j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
-      j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
-      j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
-      j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
-      j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
-      j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;
-
-  var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
-      x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
-      x15 = j15, u;
-
-  for (var i = 0; i < 20; i += 2) {
-    u = x0 + x12 | 0;
-    x4 ^= u<<7 | u>>>(32-7);
-    u = x4 + x0 | 0;
-    x8 ^= u<<9 | u>>>(32-9);
-    u = x8 + x4 | 0;
-    x12 ^= u<<13 | u>>>(32-13);
-    u = x12 + x8 | 0;
-    x0 ^= u<<18 | u>>>(32-18);
-
-    u = x5 + x1 | 0;
-    x9 ^= u<<7 | u>>>(32-7);
-    u = x9 + x5 | 0;
-    x13 ^= u<<9 | u>>>(32-9);
-    u = x13 + x9 | 0;
-    x1 ^= u<<13 | u>>>(32-13);
-    u = x1 + x13 | 0;
-    x5 ^= u<<18 | u>>>(32-18);
-
-    u = x10 + x6 | 0;
-    x14 ^= u<<7 | u>>>(32-7);
-    u = x14 + x10 | 0;
-    x2 ^= u<<9 | u>>>(32-9);
-    u = x2 + x14 | 0;
-    x6 ^= u<<13 | u>>>(32-13);
-    u = x6 + x2 | 0;
-    x10 ^= u<<18 | u>>>(32-18);
-
-    u = x15 + x11 | 0;
-    x3 ^= u<<7 | u>>>(32-7);
-    u = x3 + x15 | 0;
-    x7 ^= u<<9 | u>>>(32-9);
-    u = x7 + x3 | 0;
-    x11 ^= u<<13 | u>>>(32-13);
-    u = x11 + x7 | 0;
-    x15 ^= u<<18 | u>>>(32-18);
-
-    u = x0 + x3 | 0;
-    x1 ^= u<<7 | u>>>(32-7);
-    u = x1 + x0 | 0;
-    x2 ^= u<<9 | u>>>(32-9);
-    u = x2 + x1 | 0;
-    x3 ^= u<<13 | u>>>(32-13);
-    u = x3 + x2 | 0;
-    x0 ^= u<<18 | u>>>(32-18);
-
-    u = x5 + x4 | 0;
-    x6 ^= u<<7 | u>>>(32-7);
-    u = x6 + x5 | 0;
-    x7 ^= u<<9 | u>>>(32-9);
-    u = x7 + x6 | 0;
-    x4 ^= u<<13 | u>>>(32-13);
-    u = x4 + x7 | 0;
-    x5 ^= u<<18 | u>>>(32-18);
-
-    u = x10 + x9 | 0;
-    x11 ^= u<<7 | u>>>(32-7);
-    u = x11 + x10 | 0;
-    x8 ^= u<<9 | u>>>(32-9);
-    u = x8 + x11 | 0;
-    x9 ^= u<<13 | u>>>(32-13);
-    u = x9 + x8 | 0;
-    x10 ^= u<<18 | u>>>(32-18);
-
-    u = x15 + x14 | 0;
-    x12 ^= u<<7 | u>>>(32-7);
-    u = x12 + x15 | 0;
-    x13 ^= u<<9 | u>>>(32-9);
-    u = x13 + x12 | 0;
-    x14 ^= u<<13 | u>>>(32-13);
-    u = x14 + x13 | 0;
-    x15 ^= u<<18 | u>>>(32-18);
-  }
-
-  o[ 0] = x0 >>>  0 & 0xff;
-  o[ 1] = x0 >>>  8 & 0xff;
-  o[ 2] = x0 >>> 16 & 0xff;
-  o[ 3] = x0 >>> 24 & 0xff;
-
-  o[ 4] = x5 >>>  0 & 0xff;
-  o[ 5] = x5 >>>  8 & 0xff;
-  o[ 6] = x5 >>> 16 & 0xff;
-  o[ 7] = x5 >>> 24 & 0xff;
-
-  o[ 8] = x10 >>>  0 & 0xff;
-  o[ 9] = x10 >>>  8 & 0xff;
-  o[10] = x10 >>> 16 & 0xff;
-  o[11] = x10 >>> 24 & 0xff;
-
-  o[12] = x15 >>>  0 & 0xff;
-  o[13] = x15 >>>  8 & 0xff;
-  o[14] = x15 >>> 16 & 0xff;
-  o[15] = x15 >>> 24 & 0xff;
-
-  o[16] = x6 >>>  0 & 0xff;
-  o[17] = x6 >>>  8 & 0xff;
-  o[18] = x6 >>> 16 & 0xff;
-  o[19] = x6 >>> 24 & 0xff;
-
-  o[20] = x7 >>>  0 & 0xff;
-  o[21] = x7 >>>  8 & 0xff;
-  o[22] = x7 >>> 16 & 0xff;
-  o[23] = x7 >>> 24 & 0xff;
-
-  o[24] = x8 >>>  0 & 0xff;
-  o[25] = x8 >>>  8 & 0xff;
-  o[26] = x8 >>> 16 & 0xff;
-  o[27] = x8 >>> 24 & 0xff;
-
-  o[28] = x9 >>>  0 & 0xff;
-  o[29] = x9 >>>  8 & 0xff;
-  o[30] = x9 >>> 16 & 0xff;
-  o[31] = x9 >>> 24 & 0xff;
-}
-
-function crypto_core_salsa20(out,inp,k,c) {
-  core_salsa20(out,inp,k,c);
-}
-
-function crypto_core_hsalsa20(out,inp,k,c) {
-  core_hsalsa20(out,inp,k,c);
-}
-
-var sigma = new Uint8Array([101, 120, 112, 97, 110, 100, 32, 51, 50, 45, 98, 121, 116, 101, 32, 107]);
-            // "expand 32-byte k"
-
-function crypto_stream_salsa20_xor(c,cpos,m,mpos,b,n,k) {
-  var z = new Uint8Array(16), x = new Uint8Array(64);
-  var u, i;
-  for (i = 0; i < 16; i++) z[i] = 0;
-  for (i = 0; i < 8; i++) z[i] = n[i];
-  while (b >= 64) {
-    crypto_core_salsa20(x,z,k,sigma);
-    for (i = 0; i < 64; i++) c[cpos+i] = m[mpos+i] ^ x[i];
-    u = 1;
-    for (i = 8; i < 16; i++) {
-      u = u + (z[i] & 0xff) | 0;
-      z[i] = u & 0xff;
-      u >>>= 8;
-    }
-    b -= 64;
-    cpos += 64;
-    mpos += 64;
-  }
-  if (b > 0) {
-    crypto_core_salsa20(x,z,k,sigma);
-    for (i = 0; i < b; i++) c[cpos+i] = m[mpos+i] ^ x[i];
-  }
-  return 0;
-}
-
-function crypto_stream_salsa20(c,cpos,b,n,k) {
-  var z = new Uint8Array(16), x = new Uint8Array(64);
-  var u, i;
-  for (i = 0; i < 16; i++) z[i] = 0;
-  for (i = 0; i < 8; i++) z[i] = n[i];
-  while (b >= 64) {
-    crypto_core_salsa20(x,z,k,sigma);
-    for (i = 0; i < 64; i++) c[cpos+i] = x[i];
-    u = 1;
-    for (i = 8; i < 16; i++) {
-      u = u + (z[i] & 0xff) | 0;
-      z[i] = u & 0xff;
-      u >>>= 8;
-    }
-    b -= 64;
-    cpos += 64;
-  }
-  if (b > 0) {
-    crypto_core_salsa20(x,z,k,sigma);
-    for (i = 0; i < b; i++) c[cpos+i] = x[i];
-  }
-  return 0;
-}
-
-function crypto_stream(c,cpos,d,n,k) {
-  var s = new Uint8Array(32);
-  crypto_core_hsalsa20(s,n,k,sigma);
-  var sn = new Uint8Array(8);
-  for (var i = 0; i < 8; i++) sn[i] = n[i+16];
-  return crypto_stream_salsa20(c,cpos,d,sn,s);
-}
-
-function crypto_stream_xor(c,cpos,m,mpos,d,n,k) {
-  var s = new Uint8Array(32);
-  crypto_core_hsalsa20(s,n,k,sigma);
-  var sn = new Uint8Array(8);
-  for (var i = 0; i < 8; i++) sn[i] = n[i+16];
-  return crypto_stream_salsa20_xor(c,cpos,m,mpos,d,sn,s);
-}
-
-/*
-* Port of Andrew Moon's Poly1305-donna-16. Public domain.
-* https://github.com/floodyberry/poly1305-donna
-*/
-
-var poly1305 = function(key) {
-  this.buffer = new Uint8Array(16);
-  this.r = new Uint16Array(10);
-  this.h = new Uint16Array(10);
-  this.pad = new Uint16Array(8);
-  this.leftover = 0;
-  this.fin = 0;
-
-  var t0, t1, t2, t3, t4, t5, t6, t7;
-
-  t0 = key[ 0] & 0xff | (key[ 1] & 0xff) << 8; this.r[0] = ( t0                     ) & 0x1fff;
-  t1 = key[ 2] & 0xff | (key[ 3] & 0xff) << 8; this.r[1] = ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
-  t2 = key[ 4] & 0xff | (key[ 5] & 0xff) << 8; this.r[2] = ((t1 >>> 10) | (t2 <<  6)) & 0x1f03;
-  t3 = key[ 6] & 0xff | (key[ 7] & 0xff) << 8; this.r[3] = ((t2 >>>  7) | (t3 <<  9)) & 0x1fff;
-  t4 = key[ 8] & 0xff | (key[ 9] & 0xff) << 8; this.r[4] = ((t3 >>>  4) | (t4 << 12)) & 0x00ff;
-  this.r[5] = ((t4 >>>  1)) & 0x1ffe;
-  t5 = key[10] & 0xff | (key[11] & 0xff) << 8; this.r[6] = ((t4 >>> 14) | (t5 <<  2)) & 0x1fff;
-  t6 = key[12] & 0xff | (key[13] & 0xff) << 8; this.r[7] = ((t5 >>> 11) | (t6 <<  5)) & 0x1f81;
-  t7 = key[14] & 0xff | (key[15] & 0xff) << 8; this.r[8] = ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
-  this.r[9] = ((t7 >>>  5)) & 0x007f;
-
-  this.pad[0] = key[16] & 0xff | (key[17] & 0xff) << 8;
-  this.pad[1] = key[18] & 0xff | (key[19] & 0xff) << 8;
-  this.pad[2] = key[20] & 0xff | (key[21] & 0xff) << 8;
-  this.pad[3] = key[22] & 0xff | (key[23] & 0xff) << 8;
-  this.pad[4] = key[24] & 0xff | (key[25] & 0xff) << 8;
-  this.pad[5] = key[26] & 0xff | (key[27] & 0xff) << 8;
-  this.pad[6] = key[28] & 0xff | (key[29] & 0xff) << 8;
-  this.pad[7] = key[30] & 0xff | (key[31] & 0xff) << 8;
-};
-
-poly1305.prototype.blocks = function(m, mpos, bytes) {
-  var hibit = this.fin ? 0 : (1 << 11);
-  var t0, t1, t2, t3, t4, t5, t6, t7, c;
-  var d0, d1, d2, d3, d4, d5, d6, d7, d8, d9;
-
-  var h0 = this.h[0],
-      h1 = this.h[1],
-      h2 = this.h[2],
-      h3 = this.h[3],
-      h4 = this.h[4],
-      h5 = this.h[5],
-      h6 = this.h[6],
-      h7 = this.h[7],
-      h8 = this.h[8],
-      h9 = this.h[9];
-
-  var r0 = this.r[0],
-      r1 = this.r[1],
-      r2 = this.r[2],
-      r3 = this.r[3],
-      r4 = this.r[4],
-      r5 = this.r[5],
-      r6 = this.r[6],
-      r7 = this.r[7],
-      r8 = this.r[8],
-      r9 = this.r[9];
-
-  while (bytes >= 16) {
-    t0 = m[mpos+ 0] & 0xff | (m[mpos+ 1] & 0xff) << 8; h0 += ( t0                     ) & 0x1fff;
-    t1 = m[mpos+ 2] & 0xff | (m[mpos+ 3] & 0xff) << 8; h1 += ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
-    t2 = m[mpos+ 4] & 0xff | (m[mpos+ 5] & 0xff) << 8; h2 += ((t1 >>> 10) | (t2 <<  6)) & 0x1fff;
-    t3 = m[mpos+ 6] & 0xff | (m[mpos+ 7] & 0xff) << 8; h3 += ((t2 >>>  7) | (t3 <<  9)) & 0x1fff;
-    t4 = m[mpos+ 8] & 0xff | (m[mpos+ 9] & 0xff) << 8; h4 += ((t3 >>>  4) | (t4 << 12)) & 0x1fff;
-    h5 += ((t4 >>>  1)) & 0x1fff;
-    t5 = m[mpos+10] & 0xff | (m[mpos+11] & 0xff) << 8; h6 += ((t4 >>> 14) | (t5 <<  2)) & 0x1fff;
-    t6 = m[mpos+12] & 0xff | (m[mpos+13] & 0xff) << 8; h7 += ((t5 >>> 11) | (t6 <<  5)) & 0x1fff;
-    t7 = m[mpos+14] & 0xff | (m[mpos+15] & 0xff) << 8; h8 += ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
-    h9 += ((t7 >>> 5)) | hibit;
-
-    c = 0;
-
-    d0 = c;
-    d0 += h0 * r0;
-    d0 += h1 * (5 * r9);
-    d0 += h2 * (5 * r8);
-    d0 += h3 * (5 * r7);
-    d0 += h4 * (5 * r6);
-    c = (d0 >>> 13); d0 &= 0x1fff;
-    d0 += h5 * (5 * r5);
-    d0 += h6 * (5 * r4);
-    d0 += h7 * (5 * r3);
-    d0 += h8 * (5 * r2);
-    d0 += h9 * (5 * r1);
-    c += (d0 >>> 13); d0 &= 0x1fff;
-
-    d1 = c;
-    d1 += h0 * r1;
-    d1 += h1 * r0;
-    d1 += h2 * (5 * r9);
-    d1 += h3 * (5 * r8);
-    d1 += h4 * (5 * r7);
-    c = (d1 >>> 13); d1 &= 0x1fff;
-    d1 += h5 * (5 * r6);
-    d1 += h6 * (5 * r5);
-    d1 += h7 * (5 * r4);
-    d1 += h8 * (5 * r3);
-    d1 += h9 * (5 * r2);
-    c += (d1 >>> 13); d1 &= 0x1fff;
-
-    d2 = c;
-    d2 += h0 * r2;
-    d2 += h1 * r1;
-    d2 += h2 * r0;
-    d2 += h3 * (5 * r9);
-    d2 += h4 * (5 * r8);
-    c = (d2 >>> 13); d2 &= 0x1fff;
-    d2 += h5 * (5 * r7);
-    d2 += h6 * (5 * r6);
-    d2 += h7 * (5 * r5);
-    d2 += h8 * (5 * r4);
-    d2 += h9 * (5 * r3);
-    c += (d2 >>> 13); d2 &= 0x1fff;
-
-    d3 = c;
-    d3 += h0 * r3;
-    d3 += h1 * r2;
-    d3 += h2 * r1;
-    d3 += h3 * r0;
-    d3 += h4 * (5 * r9);
-    c = (d3 >>> 13); d3 &= 0x1fff;
-    d3 += h5 * (5 * r8);
-    d3 += h6 * (5 * r7);
-    d3 += h7 * (5 * r6);
-    d3 += h8 * (5 * r5);
-    d3 += h9 * (5 * r4);
-    c += (d3 >>> 13); d3 &= 0x1fff;
-
-    d4 = c;
-    d4 += h0 * r4;
-    d4 += h1 * r3;
-    d4 += h2 * r2;
-    d4 += h3 * r1;
-    d4 += h4 * r0;
-    c = (d4 >>> 13); d4 &= 0x1fff;
-    d4 += h5 * (5 * r9);
-    d4 += h6 * (5 * r8);
-    d4 += h7 * (5 * r7);
-    d4 += h8 * (5 * r6);
-    d4 += h9 * (5 * r5);
-    c += (d4 >>> 13); d4 &= 0x1fff;
-
-    d5 = c;
-    d5 += h0 * r5;
-    d5 += h1 * r4;
-    d5 += h2 * r3;
-    d5 += h3 * r2;
-    d5 += h4 * r1;
-    c = (d5 >>> 13); d5 &= 0x1fff;
-    d5 += h5 * r0;
-    d5 += h6 * (5 * r9);
-    d5 += h7 * (5 * r8);
-    d5 += h8 * (5 * r7);
-    d5 += h9 * (5 * r6);
-    c += (d5 >>> 13); d5 &= 0x1fff;
-
-    d6 = c;
-    d6 += h0 * r6;
-    d6 += h1 * r5;
-    d6 += h2 * r4;
-    d6 += h3 * r3;
-    d6 += h4 * r2;
-    c = (d6 >>> 13); d6 &= 0x1fff;
-    d6 += h5 * r1;
-    d6 += h6 * r0;
-    d6 += h7 * (5 * r9);
-    d6 += h8 * (5 * r8);
-    d6 += h9 * (5 * r7);
-    c += (d6 >>> 13); d6 &= 0x1fff;
-
-    d7 = c;
-    d7 += h0 * r7;
-    d7 += h1 * r6;
-    d7 += h2 * r5;
-    d7 += h3 * r4;
-    d7 += h4 * r3;
-    c = (d7 >>> 13); d7 &= 0x1fff;
-    d7 += h5 * r2;
-    d7 += h6 * r1;
-    d7 += h7 * r0;
-    d7 += h8 * (5 * r9);
-    d7 += h9 * (5 * r8);
-    c += (d7 >>> 13); d7 &= 0x1fff;
-
-    d8 = c;
-    d8 += h0 * r8;
-    d8 += h1 * r7;
-    d8 += h2 * r6;
-    d8 += h3 * r5;
-    d8 += h4 * r4;
-    c = (d8 >>> 13); d8 &= 0x1fff;
-    d8 += h5 * r3;
-    d8 += h6 * r2;
-    d8 += h7 * r1;
-    d8 += h8 * r0;
-    d8 += h9 * (5 * r9);
-    c += (d8 >>> 13); d8 &= 0x1fff;
-
-    d9 = c;
-    d9 += h0 * r9;
-    d9 += h1 * r8;
-    d9 += h2 * r7;
-    d9 += h3 * r6;
-    d9 += h4 * r5;
-    c = (d9 >>> 13); d9 &= 0x1fff;
-    d9 += h5 * r4;
-    d9 += h6 * r3;
-    d9 += h7 * r2;
-    d9 += h8 * r1;
-    d9 += h9 * r0;
-    c += (d9 >>> 13); d9 &= 0x1fff;
-
-    c = (((c << 2) + c)) | 0;
-    c = (c + d0) | 0;
-    d0 = c & 0x1fff;
-    c = (c >>> 13);
-    d1 += c;
-
-    h0 = d0;
-    h1 = d1;
-    h2 = d2;
-    h3 = d3;
-    h4 = d4;
-    h5 = d5;
-    h6 = d6;
-    h7 = d7;
-    h8 = d8;
-    h9 = d9;
-
-    mpos += 16;
-    bytes -= 16;
-  }
-  this.h[0] = h0;
-  this.h[1] = h1;
-  this.h[2] = h2;
-  this.h[3] = h3;
-  this.h[4] = h4;
-  this.h[5] = h5;
-  this.h[6] = h6;
-  this.h[7] = h7;
-  this.h[8] = h8;
-  this.h[9] = h9;
-};
-
-poly1305.prototype.finish = function(mac, macpos) {
-  var g = new Uint16Array(10);
-  var c, mask, f, i;
-
-  if (this.leftover) {
-    i = this.leftover;
-    this.buffer[i++] = 1;
-    for (; i < 16; i++) this.buffer[i] = 0;
-    this.fin = 1;
-    this.blocks(this.buffer, 0, 16);
-  }
-
-  c = this.h[1] >>> 13;
-  this.h[1] &= 0x1fff;
-  for (i = 2; i < 10; i++) {
-    this.h[i] += c;
-    c = this.h[i] >>> 13;
-    this.h[i] &= 0x1fff;
-  }
-  this.h[0] += (c * 5);
-  c = this.h[0] >>> 13;
-  this.h[0] &= 0x1fff;
-  this.h[1] += c;
-  c = this.h[1] >>> 13;
-  this.h[1] &= 0x1fff;
-  this.h[2] += c;
-
-  g[0] = this.h[0] + 5;
-  c = g[0] >>> 13;
-  g[0] &= 0x1fff;
-  for (i = 1; i < 10; i++) {
-    g[i] = this.h[i] + c;
-    c = g[i] >>> 13;
-    g[i] &= 0x1fff;
-  }
-  g[9] -= (1 << 13);
-
-  mask = (c ^ 1) - 1;
-  for (i = 0; i < 10; i++) g[i] &= mask;
-  mask = ~mask;
-  for (i = 0; i < 10; i++) this.h[i] = (this.h[i] & mask) | g[i];
-
-  this.h[0] = ((this.h[0]       ) | (this.h[1] << 13)                    ) & 0xffff;
-  this.h[1] = ((this.h[1] >>>  3) | (this.h[2] << 10)                    ) & 0xffff;
-  this.h[2] = ((this.h[2] >>>  6) | (this.h[3] <<  7)                    ) & 0xffff;
-  this.h[3] = ((this.h[3] >>>  9) | (this.h[4] <<  4)                    ) & 0xffff;
-  this.h[4] = ((this.h[4] >>> 12) | (this.h[5] <<  1) | (this.h[6] << 14)) & 0xffff;
-  this.h[5] = ((this.h[6] >>>  2) | (this.h[7] << 11)                    ) & 0xffff;
-  this.h[6] = ((this.h[7] >>>  5) | (this.h[8] <<  8)                    ) & 0xffff;
-  this.h[7] = ((this.h[8] >>>  8) | (this.h[9] <<  5)                    ) & 0xffff;
-
-  f = this.h[0] + this.pad[0];
-  this.h[0] = f & 0xffff;
-  for (i = 1; i < 8; i++) {
-    f = (((this.h[i] + this.pad[i]) | 0) + (f >>> 16)) | 0;
-    this.h[i] = f & 0xffff;
-  }
-
-  mac[macpos+ 0] = (this.h[0] >>> 0) & 0xff;
-  mac[macpos+ 1] = (this.h[0] >>> 8) & 0xff;
-  mac[macpos+ 2] = (this.h[1] >>> 0) & 0xff;
-  mac[macpos+ 3] = (this.h[1] >>> 8) & 0xff;
-  mac[macpos+ 4] = (this.h[2] >>> 0) & 0xff;
-  mac[macpos+ 5] = (this.h[2] >>> 8) & 0xff;
-  mac[macpos+ 6] = (this.h[3] >>> 0) & 0xff;
-  mac[macpos+ 7] = (this.h[3] >>> 8) & 0xff;
-  mac[macpos+ 8] = (this.h[4] >>> 0) & 0xff;
-  mac[macpos+ 9] = (this.h[4] >>> 8) & 0xff;
-  mac[macpos+10] = (this.h[5] >>> 0) & 0xff;
-  mac[macpos+11] = (this.h[5] >>> 8) & 0xff;
-  mac[macpos+12] = (this.h[6] >>> 0) & 0xff;
-  mac[macpos+13] = (this.h[6] >>> 8) & 0xff;
-  mac[macpos+14] = (this.h[7] >>> 0) & 0xff;
-  mac[macpos+15] = (this.h[7] >>> 8) & 0xff;
-};
-
-poly1305.prototype.update = function(m, mpos, bytes) {
-  var i, want;
-
-  if (this.leftover) {
-    want = (16 - this.leftover);
-    if (want > bytes)
-      want = bytes;
-    for (i = 0; i < want; i++)
-      this.buffer[this.leftover + i] = m[mpos+i];
-    bytes -= want;
-    mpos += want;
-    this.leftover += want;
-    if (this.leftover < 16)
-      return;
-    this.blocks(this.buffer, 0, 16);
-    this.leftover = 0;
-  }
-
-  if (bytes >= 16) {
-    want = bytes - (bytes % 16);
-    this.blocks(m, mpos, want);
-    mpos += want;
-    bytes -= want;
-  }
-
-  if (bytes) {
-    for (i = 0; i < bytes; i++)
-      this.buffer[this.leftover + i] = m[mpos+i];
-    this.leftover += bytes;
-  }
-};
-
-function crypto_onetimeauth(out, outpos, m, mpos, n, k) {
-  var s = new poly1305(k);
-  s.update(m, mpos, n);
-  s.finish(out, outpos);
-  return 0;
-}
-
-function crypto_onetimeauth_verify(h, hpos, m, mpos, n, k) {
-  var x = new Uint8Array(16);
-  crypto_onetimeauth(x,0,m,mpos,n,k);
-  return crypto_verify_16(h,hpos,x,0);
-}
-
-function crypto_secretbox(c,m,d,n,k) {
-  var i;
-  if (d < 32) return -1;
-  crypto_stream_xor(c,0,m,0,d,n,k);
-  crypto_onetimeauth(c, 16, c, 32, d - 32, c);
-  for (i = 0; i < 16; i++) c[i] = 0;
-  return 0;
-}
-
-function crypto_secretbox_open(m,c,d,n,k) {
-  var i;
-  var x = new Uint8Array(32);
-  if (d < 32) return -1;
-  crypto_stream(x,0,32,n,k);
-  if (crypto_onetimeauth_verify(c, 16,c, 32,d - 32,x) !== 0) return -1;
-  crypto_stream_xor(m,0,c,0,d,n,k);
-  for (i = 0; i < 32; i++) m[i] = 0;
-  return 0;
-}
-
-function set25519(r, a) {
-  var i;
-  for (i = 0; i < 16; i++) r[i] = a[i]|0;
-}
-
-function car25519(o) {
-  var i, v, c = 1;
-  for (i = 0; i < 16; i++) {
-    v = o[i] + c + 65535;
-    c = Math.floor(v / 65536);
-    o[i] = v - c * 65536;
-  }
-  o[0] += c-1 + 37 * (c-1);
-}
-
-function sel25519(p, q, b) {
-  var t, c = ~(b-1);
-  for (var i = 0; i < 16; i++) {
-    t = c & (p[i] ^ q[i]);
-    p[i] ^= t;
-    q[i] ^= t;
-  }
-}
-
-function pack25519(o, n) {
-  var i, j, b;
-  var m = gf(), t = gf();
-  for (i = 0; i < 16; i++) t[i] = n[i];
-  car25519(t);
-  car25519(t);
-  car25519(t);
-  for (j = 0; j < 2; j++) {
-    m[0] = t[0] - 0xffed;
-    for (i = 1; i < 15; i++) {
-      m[i] = t[i] - 0xffff - ((m[i-1]>>16) & 1);
-      m[i-1] &= 0xffff;
-    }
-    m[15] = t[15] - 0x7fff - ((m[14]>>16) & 1);
-    b = (m[15]>>16) & 1;
-    m[14] &= 0xffff;
-    sel25519(t, m, 1-b);
-  }
-  for (i = 0; i < 16; i++) {
-    o[2*i] = t[i] & 0xff;
-    o[2*i+1] = t[i]>>8;
-  }
-}
-
-function neq25519(a, b) {
-  var c = new Uint8Array(32), d = new Uint8Array(32);
-  pack25519(c, a);
-  pack25519(d, b);
-  return crypto_verify_32(c, 0, d, 0);
-}
-
-function par25519(a) {
-  var d = new Uint8Array(32);
-  pack25519(d, a);
-  return d[0] & 1;
-}
-
-function unpack25519(o, n) {
-  var i;
-  for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8);
-  o[15] &= 0x7fff;
-}
-
-function A(o, a, b) {
-  for (var i = 0; i < 16; i++) o[i] = a[i] + b[i];
-}
-
-function Z(o, a, b) {
-  for (var i = 0; i < 16; i++) o[i] = a[i] - b[i];
-}
-
-function M(o, a, b) {
-  var v, c,
-     t0 = 0,  t1 = 0,  t2 = 0,  t3 = 0,  t4 = 0,  t5 = 0,  t6 = 0,  t7 = 0,
-     t8 = 0,  t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0,
-    t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0,
-    t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0,
-    b0 = b[0],
-    b1 = b[1],
-    b2 = b[2],
-    b3 = b[3],
-    b4 = b[4],
-    b5 = b[5],
-    b6 = b[6],
-    b7 = b[7],
-    b8 = b[8],
-    b9 = b[9],
-    b10 = b[10],
-    b11 = b[11],
-    b12 = b[12],
-    b13 = b[13],
-    b14 = b[14],
-    b15 = b[15];
-
-  v = a[0];
-  t0 += v * b0;
-  t1 += v * b1;
-  t2 += v * b2;
-  t3 += v * b3;
-  t4 += v * b4;
-  t5 += v * b5;
-  t6 += v * b6;
-  t7 += v * b7;
-  t8 += v * b8;
-  t9 += v * b9;
-  t10 += v * b10;
-  t11 += v * b11;
-  t12 += v * b12;
-  t13 += v * b13;
-  t14 += v * b14;
-  t15 += v * b15;
-  v = a[1];
-  t1 += v * b0;
-  t2 += v * b1;
-  t3 += v * b2;
-  t4 += v * b3;
-  t5 += v * b4;
-  t6 += v * b5;
-  t7 += v * b6;
-  t8 += v * b7;
-  t9 += v * b8;
-  t10 += v * b9;
-  t11 += v * b10;
-  t12 += v * b11;
-  t13 += v * b12;
-  t14 += v * b13;
-  t15 += v * b14;
-  t16 += v * b15;
-  v = a[2];
-  t2 += v * b0;
-  t3 += v * b1;
-  t4 += v * b2;
-  t5 += v * b3;
-  t6 += v * b4;
-  t7 += v * b5;
-  t8 += v * b6;
-  t9 += v * b7;
-  t10 += v * b8;
-  t11 += v * b9;
-  t12 += v * b10;
-  t13 += v * b11;
-  t14 += v * b12;
-  t15 += v * b13;
-  t16 += v * b14;
-  t17 += v * b15;
-  v = a[3];
-  t3 += v * b0;
-  t4 += v * b1;
-  t5 += v * b2;
-  t6 += v * b3;
-  t7 += v * b4;
-  t8 += v * b5;
-  t9 += v * b6;
-  t10 += v * b7;
-  t11 += v * b8;
-  t12 += v * b9;
-  t13 += v * b10;
-  t14 += v * b11;
-  t15 += v * b12;
-  t16 += v * b13;
-  t17 += v * b14;
-  t18 += v * b15;
-  v = a[4];
-  t4 += v * b0;
-  t5 += v * b1;
-  t6 += v * b2;
-  t7 += v * b3;
-  t8 += v * b4;
-  t9 += v * b5;
-  t10 += v * b6;
-  t11 += v * b7;
-  t12 += v * b8;
-  t13 += v * b9;
-  t14 += v * b10;
-  t15 += v * b11;
-  t16 += v * b12;
-  t17 += v * b13;
-  t18 += v * b14;
-  t19 += v * b15;
-  v = a[5];
-  t5 += v * b0;
-  t6 += v * b1;
-  t7 += v * b2;
-  t8 += v * b3;
-  t9 += v * b4;
-  t10 += v * b5;
-  t11 += v * b6;
-  t12 += v * b7;
-  t13 += v * b8;
-  t14 += v * b9;
-  t15 += v * b10;
-  t16 += v * b11;
-  t17 += v * b12;
-  t18 += v * b13;
-  t19 += v * b14;
-  t20 += v * b15;
-  v = a[6];
-  t6 += v * b0;
-  t7 += v * b1;
-  t8 += v * b2;
-  t9 += v * b3;
-  t10 += v * b4;
-  t11 += v * b5;
-  t12 += v * b6;
-  t13 += v * b7;
-  t14 += v * b8;
-  t15 += v * b9;
-  t16 += v * b10;
-  t17 += v * b11;
-  t18 += v * b12;
-  t19 += v * b13;
-  t20 += v * b14;
-  t21 += v * b15;
-  v = a[7];
-  t7 += v * b0;
-  t8 += v * b1;
-  t9 += v * b2;
-  t10 += v * b3;
-  t11 += v * b4;
-  t12 += v * b5;
-  t13 += v * b6;
-  t14 += v * b7;
-  t15 += v * b8;
-  t16 += v * b9;
-  t17 += v * b10;
-  t18 += v * b11;
-  t19 += v * b12;
-  t20 += v * b13;
-  t21 += v * b14;
-  t22 += v * b15;
-  v = a[8];
-  t8 += v * b0;
-  t9 += v * b1;
-  t10 += v * b2;
-  t11 += v * b3;
-  t12 += v * b4;
-  t13 += v * b5;
-  t14 += v * b6;
-  t15 += v * b7;
-  t16 += v * b8;
-  t17 += v * b9;
-  t18 += v * b10;
-  t19 += v * b11;
-  t20 += v * b12;
-  t21 += v * b13;
-  t22 += v * b14;
-  t23 += v * b15;
-  v = a[9];
-  t9 += v * b0;
-  t10 += v * b1;
-  t11 += v * b2;
-  t12 += v * b3;
-  t13 += v * b4;
-  t14 += v * b5;
-  t15 += v * b6;
-  t16 += v * b7;
-  t17 += v * b8;
-  t18 += v * b9;
-  t19 += v * b10;
-  t20 += v * b11;
-  t21 += v * b12;
-  t22 += v * b13;
-  t23 += v * b14;
-  t24 += v * b15;
-  v = a[10];
-  t10 += v * b0;
-  t11 += v * b1;
-  t12 += v * b2;
-  t13 += v * b3;
-  t14 += v * b4;
-  t15 += v * b5;
-  t16 += v * b6;
-  t17 += v * b7;
-  t18 += v * b8;
-  t19 += v * b9;
-  t20 += v * b10;
-  t21 += v * b11;
-  t22 += v * b12;
-  t23 += v * b13;
-  t24 += v * b14;
-  t25 += v * b15;
-  v = a[11];
-  t11 += v * b0;
-  t12 += v * b1;
-  t13 += v * b2;
-  t14 += v * b3;
-  t15 += v * b4;
-  t16 += v * b5;
-  t17 += v * b6;
-  t18 += v * b7;
-  t19 += v * b8;
-  t20 += v * b9;
-  t21 += v * b10;
-  t22 += v * b11;
-  t23 += v * b12;
-  t24 += v * b13;
-  t25 += v * b14;
-  t26 += v * b15;
-  v = a[12];
-  t12 += v * b0;
-  t13 += v * b1;
-  t14 += v * b2;
-  t15 += v * b3;
-  t16 += v * b4;
-  t17 += v * b5;
-  t18 += v * b6;
-  t19 += v * b7;
-  t20 += v * b8;
-  t21 += v * b9;
-  t22 += v * b10;
-  t23 += v * b11;
-  t24 += v * b12;
-  t25 += v * b13;
-  t26 += v * b14;
-  t27 += v * b15;
-  v = a[13];
-  t13 += v * b0;
-  t14 += v * b1;
-  t15 += v * b2;
-  t16 += v * b3;
-  t17 += v * b4;
-  t18 += v * b5;
-  t19 += v * b6;
-  t20 += v * b7;
-  t21 += v * b8;
-  t22 += v * b9;
-  t23 += v * b10;
-  t24 += v * b11;
-  t25 += v * b12;
-  t26 += v * b13;
-  t27 += v * b14;
-  t28 += v * b15;
-  v = a[14];
-  t14 += v * b0;
-  t15 += v * b1;
-  t16 += v * b2;
-  t17 += v * b3;
-  t18 += v * b4;
-  t19 += v * b5;
-  t20 += v * b6;
-  t21 += v * b7;
-  t22 += v * b8;
-  t23 += v * b9;
-  t24 += v * b10;
-  t25 += v * b11;
-  t26 += v * b12;
-  t27 += v * b13;
-  t28 += v * b14;
-  t29 += v * b15;
-  v = a[15];
-  t15 += v * b0;
-  t16 += v * b1;
-  t17 += v * b2;
-  t18 += v * b3;
-  t19 += v * b4;
-  t20 += v * b5;
-  t21 += v * b6;
-  t22 += v * b7;
-  t23 += v * b8;
-  t24 += v * b9;
-  t25 += v * b10;
-  t26 += v * b11;
-  t27 += v * b12;
-  t28 += v * b13;
-  t29 += v * b14;
-  t30 += v * b15;
-
-  t0  += 38 * t16;
-  t1  += 38 * t17;
-  t2  += 38 * t18;
-  t3  += 38 * t19;
-  t4  += 38 * t20;
-  t5  += 38 * t21;
-  t6  += 38 * t22;
-  t7  += 38 * t23;
-  t8  += 38 * t24;
-  t9  += 38 * t25;
-  t10 += 38 * t26;
-  t11 += 38 * t27;
-  t12 += 38 * t28;
-  t13 += 38 * t29;
-  t14 += 38 * t30;
-  // t15 left as is
-
-  // first car
-  c = 1;
-  v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
-  v =  t1 + c + 65535; c = Math.floor(v / 65536);  t1 = v - c * 65536;
-  v =  t2 + c + 65535; c = Math.floor(v / 65536);  t2 = v - c * 65536;
-  v =  t3 + c + 65535; c = Math.floor(v / 65536);  t3 = v - c * 65536;
-  v =  t4 + c + 65535; c = Math.floor(v / 65536);  t4 = v - c * 65536;
-  v =  t5 + c + 65535; c = Math.floor(v / 65536);  t5 = v - c * 65536;
-  v =  t6 + c + 65535; c = Math.floor(v / 65536);  t6 = v - c * 65536;
-  v =  t7 + c + 65535; c = Math.floor(v / 65536);  t7 = v - c * 65536;
-  v =  t8 + c + 65535; c = Math.floor(v / 65536);  t8 = v - c * 65536;
-  v =  t9 + c + 65535; c = Math.floor(v / 65536);  t9 = v - c * 65536;
-  v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
-  v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
-  v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
-  v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
-  v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
-  v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
-  t0 += c-1 + 37 * (c-1);
-
-  // second car
-  c = 1;
-  v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
-  v =  t1 + c + 65535; c = Math.floor(v / 65536);  t1 = v - c * 65536;
-  v =  t2 + c + 65535; c = Math.floor(v / 65536);  t2 = v - c * 65536;
-  v =  t3 + c + 65535; c = Math.floor(v / 65536);  t3 = v - c * 65536;
-  v =  t4 + c + 65535; c = Math.floor(v / 65536);  t4 = v - c * 65536;
-  v =  t5 + c + 65535; c = Math.floor(v / 65536);  t5 = v - c * 65536;
-  v =  t6 + c + 65535; c = Math.floor(v / 65536);  t6 = v - c * 65536;
-  v =  t7 + c + 65535; c = Math.floor(v / 65536);  t7 = v - c * 65536;
-  v =  t8 + c + 65535; c = Math.floor(v / 65536);  t8 = v - c * 65536;
-  v =  t9 + c + 65535; c = Math.floor(v / 65536);  t9 = v - c * 65536;
-  v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
-  v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
-  v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
-  v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
-  v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
-  v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
-  t0 += c-1 + 37 * (c-1);
-
-  o[ 0] = t0;
-  o[ 1] = t1;
-  o[ 2] = t2;
-  o[ 3] = t3;
-  o[ 4] = t4;
-  o[ 5] = t5;
-  o[ 6] = t6;
-  o[ 7] = t7;
-  o[ 8] = t8;
-  o[ 9] = t9;
-  o[10] = t10;
-  o[11] = t11;
-  o[12] = t12;
-  o[13] = t13;
-  o[14] = t14;
-  o[15] = t15;
-}
-
-function S(o, a) {
-  M(o, a, a);
-}
-
-function inv25519(o, i) {
-  var c = gf();
-  var a;
-  for (a = 0; a < 16; a++) c[a] = i[a];
-  for (a = 253; a >= 0; a--) {
-    S(c, c);
-    if(a !== 2 && a !== 4) M(c, c, i);
-  }
-  for (a = 0; a < 16; a++) o[a] = c[a];
-}
-
-function pow2523(o, i) {
-  var c = gf();
-  var a;
-  for (a = 0; a < 16; a++) c[a] = i[a];
-  for (a = 250; a >= 0; a--) {
-      S(c, c);
-      if(a !== 1) M(c, c, i);
-  }
-  for (a = 0; a < 16; a++) o[a] = c[a];
-}
-
-function crypto_scalarmult(q, n, p) {
-  var z = new Uint8Array(32);
-  var x = new Float64Array(80), r, i;
-  var a = gf(), b = gf(), c = gf(),
-      d = gf(), e = gf(), f = gf();
-  for (i = 0; i < 31; i++) z[i] = n[i];
-  z[31]=(n[31]&127)|64;
-  z[0]&=248;
-  unpack25519(x,p);
-  for (i = 0; i < 16; i++) {
-    b[i]=x[i];
-    d[i]=a[i]=c[i]=0;
-  }
-  a[0]=d[0]=1;
-  for (i=254; i>=0; --i) {
-    r=(z[i>>>3]>>>(i&7))&1;
-    sel25519(a,b,r);
-    sel25519(c,d,r);
-    A(e,a,c);
-    Z(a,a,c);
-    A(c,b,d);
-    Z(b,b,d);
-    S(d,e);
-    S(f,a);
-    M(a,c,a);
-    M(c,b,e);
-    A(e,a,c);
-    Z(a,a,c);
-    S(b,a);
-    Z(c,d,f);
-    M(a,c,_121665);
-    A(a,a,d);
-    M(c,c,a);
-    M(a,d,f);
-    M(d,b,x);
-    S(b,e);
-    sel25519(a,b,r);
-    sel25519(c,d,r);
-  }
-  for (i = 0; i < 16; i++) {
-    x[i+16]=a[i];
-    x[i+32]=c[i];
-    x[i+48]=b[i];
-    x[i+64]=d[i];
-  }
-  var x32 = x.subarray(32);
-  var x16 = x.subarray(16);
-  inv25519(x32,x32);
-  M(x16,x16,x32);
-  pack25519(q,x16);
-  return 0;
-}
-
-function crypto_scalarmult_base(q, n) {
-  return crypto_scalarmult(q, n, _9);
-}
-
-function crypto_box_keypair(y, x) {
-  randombytes(x, 32);
-  return crypto_scalarmult_base(y, x);
-}
-
-function crypto_box_beforenm(k, y, x) {
-  var s = new Uint8Array(32);
-  crypto_scalarmult(s, x, y);
-  return crypto_core_hsalsa20(k, _0, s, sigma);
-}
-
-var crypto_box_afternm = crypto_secretbox;
-var crypto_box_open_afternm = crypto_secretbox_open;
-
-function crypto_box(c, m, d, n, y, x) {
-  var k = new Uint8Array(32);
-  crypto_box_beforenm(k, y, x);
-  return crypto_box_afternm(c, m, d, n, k);
-}
-
-function crypto_box_open(m, c, d, n, y, x) {
-  var k = new Uint8Array(32);
-  crypto_box_beforenm(k, y, x);
-  return crypto_box_open_afternm(m, c, d, n, k);
-}
-
-var K = [
-  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
-  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
-  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
-  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
-  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
-  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
-  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
-  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
-  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
-  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
-  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
-  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
-  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
-  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
-  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
-  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
-  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
-  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
-  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
-  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
-  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
-  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
-  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
-  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
-  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
-  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
-  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
-  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
-  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
-  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
-  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
-  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
-  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
-  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
-  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
-  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
-  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
-  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
-  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
-  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
-];
-
-function crypto_hashblocks_hl(hh, hl, m, n) {
-  var wh = new Int32Array(16), wl = new Int32Array(16),
-      bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7,
-      bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7,
-      th, tl, i, j, h, l, a, b, c, d;
-
-  var ah0 = hh[0],
-      ah1 = hh[1],
-      ah2 = hh[2],
-      ah3 = hh[3],
-      ah4 = hh[4],
-      ah5 = hh[5],
-      ah6 = hh[6],
-      ah7 = hh[7],
-
-      al0 = hl[0],
-      al1 = hl[1],
-      al2 = hl[2],
-      al3 = hl[3],
-      al4 = hl[4],
-      al5 = hl[5],
-      al6 = hl[6],
-      al7 = hl[7];
-
-  var pos = 0;
-  while (n >= 128) {
-    for (i = 0; i < 16; i++) {
-      j = 8 * i + pos;
-      wh[i] = (m[j+0] << 24) | (m[j+1] << 16) | (m[j+2] << 8) | m[j+3];
-      wl[i] = (m[j+4] << 24) | (m[j+5] << 16) | (m[j+6] << 8) | m[j+7];
-    }
-    for (i = 0; i < 80; i++) {
-      bh0 = ah0;
-      bh1 = ah1;
-      bh2 = ah2;
-      bh3 = ah3;
-      bh4 = ah4;
-      bh5 = ah5;
-      bh6 = ah6;
-      bh7 = ah7;
-
-      bl0 = al0;
-      bl1 = al1;
-      bl2 = al2;
-      bl3 = al3;
-      bl4 = al4;
-      bl5 = al5;
-      bl6 = al6;
-      bl7 = al7;
-
-      // add
-      h = ah7;
-      l = al7;
-
-      a = l & 0xffff; b = l >>> 16;
-      c = h & 0xffff; d = h >>> 16;
-
-      // Sigma1
-      h = ((ah4 >>> 14) | (al4 << (32-14))) ^ ((ah4 >>> 18) | (al4 << (32-18))) ^ ((al4 >>> (41-32)) | (ah4 << (32-(41-32))));
-      l = ((al4 >>> 14) | (ah4 << (32-14))) ^ ((al4 >>> 18) | (ah4 << (32-18))) ^ ((ah4 >>> (41-32)) | (al4 << (32-(41-32))));
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      // Ch
-      h = (ah4 & ah5) ^ (~ah4 & ah6);
-      l = (al4 & al5) ^ (~al4 & al6);
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      // K
-      h = K[i*2];
-      l = K[i*2+1];
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      // w
-      h = wh[i%16];
-      l = wl[i%16];
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      b += a >>> 16;
-      c += b >>> 16;
-      d += c >>> 16;
-
-      th = c & 0xffff | d << 16;
-      tl = a & 0xffff | b << 16;
-
-      // add
-      h = th;
-      l = tl;
-
-      a = l & 0xffff; b = l >>> 16;
-      c = h & 0xffff; d = h >>> 16;
-
-      // Sigma0
-      h = ((ah0 >>> 28) | (al0 << (32-28))) ^ ((al0 >>> (34-32)) | (ah0 << (32-(34-32)))) ^ ((al0 >>> (39-32)) | (ah0 << (32-(39-32))));
-      l = ((al0 >>> 28) | (ah0 << (32-28))) ^ ((ah0 >>> (34-32)) | (al0 << (32-(34-32)))) ^ ((ah0 >>> (39-32)) | (al0 << (32-(39-32))));
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      // Maj
-      h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
-      l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      b += a >>> 16;
-      c += b >>> 16;
-      d += c >>> 16;
-
-      bh7 = (c & 0xffff) | (d << 16);
-      bl7 = (a & 0xffff) | (b << 16);
-
-      // add
-      h = bh3;
-      l = bl3;
-
-      a = l & 0xffff; b = l >>> 16;
-      c = h & 0xffff; d = h >>> 16;
-
-      h = th;
-      l = tl;
-
-      a += l & 0xffff; b += l >>> 16;
-      c += h & 0xffff; d += h >>> 16;
-
-      b += a >>> 16;
-      c += b >>> 16;
-      d += c >>> 16;
-
-      bh3 = (c & 0xffff) | (d << 16);
-      bl3 = (a & 0xffff) | (b << 16);
-
-      ah1 = bh0;
-      ah2 = bh1;
-      ah3 = bh2;
-      ah4 = bh3;
-      ah5 = bh4;
-      ah6 = bh5;
-      ah7 = bh6;
-      ah0 = bh7;
-
-      al1 = bl0;
-      al2 = bl1;
-      al3 = bl2;
-      al4 = bl3;
-      al5 = bl4;
-      al6 = bl5;
-      al7 = bl6;
-      al0 = bl7;
-
-      if (i%16 === 15) {
-        for (j = 0; j < 16; j++) {
-          // add
-          h = wh[j];
-          l = wl[j];
-
-          a = l & 0xffff; b = l >>> 16;
-          c = h & 0xffff; d = h >>> 16;
-
-          h = wh[(j+9)%16];
-          l = wl[(j+9)%16];
-
-          a += l & 0xffff; b += l >>> 16;
-          c += h & 0xffff; d += h >>> 16;
-
-          // sigma0
-          th = wh[(j+1)%16];
-          tl = wl[(j+1)%16];
-          h = ((th >>> 1) | (tl << (32-1))) ^ ((th >>> 8) | (tl << (32-8))) ^ (th >>> 7);
-          l = ((tl >>> 1) | (th << (32-1))) ^ ((tl >>> 8) | (th << (32-8))) ^ ((tl >>> 7) | (th << (32-7)));
-
-          a += l & 0xffff; b += l >>> 16;
-          c += h & 0xffff; d += h >>> 16;
-
-          // sigma1
-          th = wh[(j+14)%16];
-          tl = wl[(j+14)%16];
-          h = ((th >>> 19) | (tl << (32-19))) ^ ((tl >>> (61-32)) | (th << (32-(61-32)))) ^ (th >>> 6);
-          l = ((tl >>> 19) | (th << (32-19))) ^ ((th >>> (61-32)) | (tl << (32-(61-32)))) ^ ((tl >>> 6) | (th << (32-6)));
-
-          a += l & 0xffff; b += l >>> 16;
-          c += h & 0xffff; d += h >>> 16;
-
-          b += a >>> 16;
-          c += b >>> 16;
-          d += c >>> 16;
-
-          wh[j] = (c & 0xffff) | (d << 16);
-          wl[j] = (a & 0xffff) | (b << 16);
-        }
-      }
-    }
-
-    // add
-    h = ah0;
-    l = al0;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[0];
-    l = hl[0];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[0] = ah0 = (c & 0xffff) | (d << 16);
-    hl[0] = al0 = (a & 0xffff) | (b << 16);
-
-    h = ah1;
-    l = al1;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[1];
-    l = hl[1];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[1] = ah1 = (c & 0xffff) | (d << 16);
-    hl[1] = al1 = (a & 0xffff) | (b << 16);
-
-    h = ah2;
-    l = al2;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[2];
-    l = hl[2];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[2] = ah2 = (c & 0xffff) | (d << 16);
-    hl[2] = al2 = (a & 0xffff) | (b << 16);
-
-    h = ah3;
-    l = al3;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[3];
-    l = hl[3];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[3] = ah3 = (c & 0xffff) | (d << 16);
-    hl[3] = al3 = (a & 0xffff) | (b << 16);
-
-    h = ah4;
-    l = al4;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[4];
-    l = hl[4];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[4] = ah4 = (c & 0xffff) | (d << 16);
-    hl[4] = al4 = (a & 0xffff) | (b << 16);
-
-    h = ah5;
-    l = al5;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[5];
-    l = hl[5];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[5] = ah5 = (c & 0xffff) | (d << 16);
-    hl[5] = al5 = (a & 0xffff) | (b << 16);
-
-    h = ah6;
-    l = al6;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[6];
-    l = hl[6];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[6] = ah6 = (c & 0xffff) | (d << 16);
-    hl[6] = al6 = (a & 0xffff) | (b << 16);
-
-    h = ah7;
-    l = al7;
-
-    a = l & 0xffff; b = l >>> 16;
-    c = h & 0xffff; d = h >>> 16;
-
-    h = hh[7];
-    l = hl[7];
-
-    a += l & 0xffff; b += l >>> 16;
-    c += h & 0xffff; d += h >>> 16;
-
-    b += a >>> 16;
-    c += b >>> 16;
-    d += c >>> 16;
-
-    hh[7] = ah7 = (c & 0xffff) | (d << 16);
-    hl[7] = al7 = (a & 0xffff) | (b << 16);
-
-    pos += 128;
-    n -= 128;
-  }
-
-  return n;
-}
-
-function crypto_hash(out, m, n) {
-  var hh = new Int32Array(8),
-      hl = new Int32Array(8),
-      x = new Uint8Array(256),
-      i, b = n;
-
-  hh[0] = 0x6a09e667;
-  hh[1] = 0xbb67ae85;
-  hh[2] = 0x3c6ef372;
-  hh[3] = 0xa54ff53a;
-  hh[4] = 0x510e527f;
-  hh[5] = 0x9b05688c;
-  hh[6] = 0x1f83d9ab;
-  hh[7] = 0x5be0cd19;
-
-  hl[0] = 0xf3bcc908;
-  hl[1] = 0x84caa73b;
-  hl[2] = 0xfe94f82b;
-  hl[3] = 0x5f1d36f1;
-  hl[4] = 0xade682d1;
-  hl[5] = 0x2b3e6c1f;
-  hl[6] = 0xfb41bd6b;
-  hl[7] = 0x137e2179;
-
-  crypto_hashblocks_hl(hh, hl, m, n);
-  n %= 128;
-
-  for (i = 0; i < n; i++) x[i] = m[b-n+i];
-  x[n] = 128;
-
-  n = 256-128*(n<112?1:0);
-  x[n-9] = 0;
-  ts64(x, n-8,  (b / 0x20000000) | 0, b << 3);
-  crypto_hashblocks_hl(hh, hl, x, n);
-
-  for (i = 0; i < 8; i++) ts64(out, 8*i, hh[i], hl[i]);
-
-  return 0;
-}
-
-function add(p, q) {
-  var a = gf(), b = gf(), c = gf(),
-      d = gf(), e = gf(), f = gf(),
-      g = gf(), h = gf(), t = gf();
-
-  Z(a, p[1], p[0]);
-  Z(t, q[1], q[0]);
-  M(a, a, t);
-  A(b, p[0], p[1]);
-  A(t, q[0], q[1]);
-  M(b, b, t);
-  M(c, p[3], q[3]);
-  M(c, c, D2);
-  M(d, p[2], q[2]);
-  A(d, d, d);
-  Z(e, b, a);
-  Z(f, d, c);
-  A(g, d, c);
-  A(h, b, a);
-
-  M(p[0], e, f);
-  M(p[1], h, g);
-  M(p[2], g, f);
-  M(p[3], e, h);
-}
-
-function cswap(p, q, b) {
-  var i;
-  for (i = 0; i < 4; i++) {
-    sel25519(p[i], q[i], b);
-  }
-}
-
-function pack(r, p) {
-  var tx = gf(), ty = gf(), zi = gf();
-  inv25519(zi, p[2]);
-  M(tx, p[0], zi);
-  M(ty, p[1], zi);
-  pack25519(r, ty);
-  r[31] ^= par25519(tx) << 7;
-}
-
-function scalarmult(p, q, s) {
-  var b, i;
-  set25519(p[0], gf0);
-  set25519(p[1], gf1);
-  set25519(p[2], gf1);
-  set25519(p[3], gf0);
-  for (i = 255; i >= 0; --i) {
-    b = (s[(i/8)|0] >> (i&7)) & 1;
-    cswap(p, q, b);
-    add(q, p);
-    add(p, p);
-    cswap(p, q, b);
-  }
-}
-
-function scalarbase(p, s) {
-  var q = [gf(), gf(), gf(), gf()];
-  set25519(q[0], X);
-  set25519(q[1], Y);
-  set25519(q[2], gf1);
-  M(q[3], X, Y);
-  scalarmult(p, q, s);
-}
-
-function crypto_sign_keypair(pk, sk, seeded) {
-  var d = new Uint8Array(64);
-  var p = [gf(), gf(), gf(), gf()];
-  var i;
-
-  if (!seeded) randombytes(sk, 32);
-  crypto_hash(d, sk, 32);
-  d[0] &= 248;
-  d[31] &= 127;
-  d[31] |= 64;
-
-  scalarbase(p, d);
-  pack(pk, p);
-
-  for (i = 0; i < 32; i++) sk[i+32] = pk[i];
-  return 0;
-}
-
-var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]);
-
-function modL(r, x) {
-  var carry, i, j, k;
-  for (i = 63; i >= 32; --i) {
-    carry = 0;
-    for (j = i - 32, k = i - 12; j < k; ++j) {
-      x[j] += carry - 16 * x[i] * L[j - (i - 32)];
-      carry = (x[j] + 128) >> 8;
-      x[j] -= carry * 256;
-    }
-    x[j] += carry;
-    x[i] = 0;
-  }
-  carry = 0;
-  for (j = 0; j < 32; j++) {
-    x[j] += carry - (x[31] >> 4) * L[j];
-    carry = x[j] >> 8;
-    x[j] &= 255;
-  }
-  for (j = 0; j < 32; j++) x[j] -= carry * L[j];
-  for (i = 0; i < 32; i++) {
-    x[i+1] += x[i] >> 8;
-    r[i] = x[i] & 255;
-  }
-}
-
-function reduce(r) {
-  var x = new Float64Array(64), i;
-  for (i = 0; i < 64; i++) x[i] = r[i];
-  for (i = 0; i < 64; i++) r[i] = 0;
-  modL(r, x);
-}
-
-// Note: difference from C - smlen returned, not passed as argument.
-function crypto_sign(sm, m, n, sk) {
-  var d = new Uint8Array(64), h = new Uint8Array(64), r = new Uint8Array(64);
-  var i, j, x = new Float64Array(64);
-  var p = [gf(), gf(), gf(), gf()];
-
-  crypto_hash(d, sk, 32);
-  d[0] &= 248;
-  d[31] &= 127;
-  d[31] |= 64;
-
-  var smlen = n + 64;
-  for (i = 0; i < n; i++) sm[64 + i] = m[i];
-  for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i];
-
-  crypto_hash(r, sm.subarray(32), n+32);
-  reduce(r);
-  scalarbase(p, r);
-  pack(sm, p);
-
-  for (i = 32; i < 64; i++) sm[i] = sk[i];
-  crypto_hash(h, sm, n + 64);
-  reduce(h);
-
-  for (i = 0; i < 64; i++) x[i] = 0;
-  for (i = 0; i < 32; i++) x[i] = r[i];
-  for (i = 0; i < 32; i++) {
-    for (j = 0; j < 32; j++) {
-      x[i+j] += h[i] * d[j];
-    }
-  }
-
-  modL(sm.subarray(32), x);
-  return smlen;
-}
-
-function unpackneg(r, p) {
-  var t = gf(), chk = gf(), num = gf(),
-      den = gf(), den2 = gf(), den4 = gf(),
-      den6 = gf();
-
-  set25519(r[2], gf1);
-  unpack25519(r[1], p);
-  S(num, r[1]);
-  M(den, num, D);
-  Z(num, num, r[2]);
-  A(den, r[2], den);
-
-  S(den2, den);
-  S(den4, den2);
-  M(den6, den4, den2);
-  M(t, den6, num);
-  M(t, t, den);
-
-  pow2523(t, t);
-  M(t, t, num);
-  M(t, t, den);
-  M(t, t, den);
-  M(r[0], t, den);
-
-  S(chk, r[0]);
-  M(chk, chk, den);
-  if (neq25519(chk, num)) M(r[0], r[0], I);
-
-  S(chk, r[0]);
-  M(chk, chk, den);
-  if (neq25519(chk, num)) return -1;
-
-  if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]);
-
-  M(r[3], r[0], r[1]);
-  return 0;
-}
-
-function crypto_sign_open(m, sm, n, pk) {
-  var i, mlen;
-  var t = new Uint8Array(32), h = new Uint8Array(64);
-  var p = [gf(), gf(), gf(), gf()],
-      q = [gf(), gf(), gf(), gf()];
-
-  mlen = -1;
-  if (n < 64) return -1;
-
-  if (unpackneg(q, pk)) return -1;
-
-  for (i = 0; i < n; i++) m[i] = sm[i];
-  for (i = 0; i < 32; i++) m[i+32] = pk[i];
-  crypto_hash(h, m, n);
-  reduce(h);
-  scalarmult(p, q, h);
-
-  scalarbase(q, sm.subarray(32));
-  add(p, q);
-  pack(t, p);
-
-  n -= 64;
-  if (crypto_verify_32(sm, 0, t, 0)) {
-    for (i = 0; i < n; i++) m[i] = 0;
-    return -1;
-  }
-
-  for (i = 0; i < n; i++) m[i] = sm[i + 64];
-  mlen = n;
-  return mlen;
-}
-
-var crypto_secretbox_KEYBYTES = 32,
-    crypto_secretbox_NONCEBYTES = 24,
-    crypto_secretbox_ZEROBYTES = 32,
-    crypto_secretbox_BOXZEROBYTES = 16,
-    crypto_scalarmult_BYTES = 32,
-    crypto_scalarmult_SCALARBYTES = 32,
-    crypto_box_PUBLICKEYBYTES = 32,
-    crypto_box_SECRETKEYBYTES = 32,
-    crypto_box_BEFORENMBYTES = 32,
-    crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
-    crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
-    crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
-    crypto_sign_BYTES = 64,
-    crypto_sign_PUBLICKEYBYTES = 32,
-    crypto_sign_SECRETKEYBYTES = 64,
-    crypto_sign_SEEDBYTES = 32,
-    crypto_hash_BYTES = 64;
-
-nacl.lowlevel = {
-  crypto_core_hsalsa20: crypto_core_hsalsa20,
-  crypto_stream_xor: crypto_stream_xor,
-  crypto_stream: crypto_stream,
-  crypto_stream_salsa20_xor: crypto_stream_salsa20_xor,
-  crypto_stream_salsa20: crypto_stream_salsa20,
-  crypto_onetimeauth: crypto_onetimeauth,
-  crypto_onetimeauth_verify: crypto_onetimeauth_verify,
-  crypto_verify_16: crypto_verify_16,
-  crypto_verify_32: crypto_verify_32,
-  crypto_secretbox: crypto_secretbox,
-  crypto_secretbox_open: crypto_secretbox_open,
-  crypto_scalarmult: crypto_scalarmult,
-  crypto_scalarmult_base: crypto_scalarmult_base,
-  crypto_box_beforenm: crypto_box_beforenm,
-  crypto_box_afternm: crypto_box_afternm,
-  crypto_box: crypto_box,
-  crypto_box_open: crypto_box_open,
-  crypto_box_keypair: crypto_box_keypair,
-  crypto_hash: crypto_hash,
-  crypto_sign: crypto_sign,
-  crypto_sign_keypair: crypto_sign_keypair,
-  crypto_sign_open: crypto_sign_open,
-
-  crypto_secretbox_KEYBYTES: crypto_secretbox_KEYBYTES,
-  crypto_secretbox_NONCEBYTES: crypto_secretbox_NONCEBYTES,
-  crypto_secretbox_ZEROBYTES: crypto_secretbox_ZEROBYTES,
-  crypto_secretbox_BOXZEROBYTES: crypto_secretbox_BOXZEROBYTES,
-  crypto_scalarmult_BYTES: crypto_scalarmult_BYTES,
-  crypto_scalarmult_SCALARBYTES: crypto_scalarmult_SCALARBYTES,
-  crypto_box_PUBLICKEYBYTES: crypto_box_PUBLICKEYBYTES,
-  crypto_box_SECRETKEYBYTES: crypto_box_SECRETKEYBYTES,
-  crypto_box_BEFORENMBYTES: crypto_box_BEFORENMBYTES,
-  crypto_box_NONCEBYTES: crypto_box_NONCEBYTES,
-  crypto_box_ZEROBYTES: crypto_box_ZEROBYTES,
-  crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES,
-  crypto_sign_BYTES: crypto_sign_BYTES,
-  crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES,
-  crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
-  crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES,
-  crypto_hash_BYTES: crypto_hash_BYTES
-};
-
-/* High-level API */
-
-function checkLengths(k, n) {
-  if (k.length !== crypto_secretbox_KEYBYTES) throw new Error('bad key size');
-  if (n.length !== crypto_secretbox_NONCEBYTES) throw new Error('bad nonce size');
-}
-
-function checkBoxLengths(pk, sk) {
-  if (pk.length !== crypto_box_PUBLICKEYBYTES) throw new Error('bad public key size');
-  if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
-}
-
-function checkArrayTypes() {
-  var t, i;
-  for (i = 0; i < arguments.length; i++) {
-     if ((t = Object.prototype.toString.call(arguments[i])) !== '[object Uint8Array]')
-       throw new TypeError('unexpected type ' + t + ', use Uint8Array');
-  }
-}
-
-function cleanup(arr) {
-  for (var i = 0; i < arr.length; i++) arr[i] = 0;
-}
-
-// TODO: Completely remove this in v0.15.
-if (!nacl.util) {
-  nacl.util = {};
-  nacl.util.decodeUTF8 = nacl.util.encodeUTF8 = nacl.util.encodeBase64 = nacl.util.decodeBase64 = function() {
-    throw new Error('nacl.util moved into separate package: https://github.com/dchest/tweetnacl-util-js');
-  };
-}
-
-nacl.randomBytes = function(n) {
-  var b = new Uint8Array(n);
-  randombytes(b, n);
-  return b;
-};
-
-nacl.secretbox = function(msg, nonce, key) {
-  checkArrayTypes(msg, nonce, key);
-  checkLengths(key, nonce);
-  var m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.length);
-  var c = new Uint8Array(m.length);
-  for (var i = 0; i < msg.length; i++) m[i+crypto_secretbox_ZEROBYTES] = msg[i];
-  crypto_secretbox(c, m, m.length, nonce, key);
-  return c.subarray(crypto_secretbox_BOXZEROBYTES);
-};
-
-nacl.secretbox.open = function(box, nonce, key) {
-  checkArrayTypes(box, nonce, key);
-  checkLengths(key, nonce);
-  var c = new Uint8Array(crypto_secretbox_BOXZEROBYTES + box.length);
-  var m = new Uint8Array(c.length);
-  for (var i = 0; i < box.length; i++) c[i+crypto_secretbox_BOXZEROBYTES] = box[i];
-  if (c.length < 32) return false;
-  if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return false;
-  return m.subarray(crypto_secretbox_ZEROBYTES);
-};
-
-nacl.secretbox.keyLength = crypto_secretbox_KEYBYTES;
-nacl.secretbox.nonceLength = crypto_secretbox_NONCEBYTES;
-nacl.secretbox.overheadLength = crypto_secretbox_BOXZEROBYTES;
-
-nacl.scalarMult = function(n, p) {
-  checkArrayTypes(n, p);
-  if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
-  if (p.length !== crypto_scalarmult_BYTES) throw new Error('bad p size');
-  var q = new Uint8Array(crypto_scalarmult_BYTES);
-  crypto_scalarmult(q, n, p);
-  return q;
-};
-
-nacl.scalarMult.base = function(n) {
-  checkArrayTypes(n);
-  if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
-  var q = new Uint8Array(crypto_scalarmult_BYTES);
-  crypto_scalarmult_base(q, n);
-  return q;
-};
-
-nacl.scalarMult.scalarLength = crypto_scalarmult_SCALARBYTES;
-nacl.scalarMult.groupElementLength = crypto_scalarmult_BYTES;
-
-nacl.box = function(msg, nonce, publicKey, secretKey) {
-  var k = nacl.box.before(publicKey, secretKey);
-  return nacl.secretbox(msg, nonce, k);
-};
-
-nacl.box.before = function(publicKey, secretKey) {
-  checkArrayTypes(publicKey, secretKey);
-  checkBoxLengths(publicKey, secretKey);
-  var k = new Uint8Array(crypto_box_BEFORENMBYTES);
-  crypto_box_beforenm(k, publicKey, secretKey);
-  return k;
-};
-
-nacl.box.after = nacl.secretbox;
-
-nacl.box.open = function(msg, nonce, publicKey, secretKey) {
-  var k = nacl.box.before(publicKey, secretKey);
-  return nacl.secretbox.open(msg, nonce, k);
-};
-
-nacl.box.open.after = nacl.secretbox.open;
-
-nacl.box.keyPair = function() {
-  var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
-  var sk = new Uint8Array(crypto_box_SECRETKEYBYTES);
-  crypto_box_keypair(pk, sk);
-  return {publicKey: pk, secretKey: sk};
-};
-
-nacl.box.keyPair.fromSecretKey = function(secretKey) {
-  checkArrayTypes(secretKey);
-  if (secretKey.length !== crypto_box_SECRETKEYBYTES)
-    throw new Error('bad secret key size');
-  var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
-  crypto_scalarmult_base(pk, secretKey);
-  return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
-};
-
-nacl.box.publicKeyLength = crypto_box_PUBLICKEYBYTES;
-nacl.box.secretKeyLength = crypto_box_SECRETKEYBYTES;
-nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES;
-nacl.box.nonceLength = crypto_box_NONCEBYTES;
-nacl.box.overheadLength = nacl.secretbox.overheadLength;
-
-nacl.sign = function(msg, secretKey) {
-  checkArrayTypes(msg, secretKey);
-  if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
-    throw new Error('bad secret key size');
-  var signedMsg = new Uint8Array(crypto_sign_BYTES+msg.length);
-  crypto_sign(signedMsg, msg, msg.length, secretKey);
-  return signedMsg;
-};
-
-nacl.sign.open = function(signedMsg, publicKey) {
-  if (arguments.length !== 2)
-    throw new Error('nacl.sign.open accepts 2 arguments; did you mean to use nacl.sign.detached.verify?');
-  checkArrayTypes(signedMsg, publicKey);
-  if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
-    throw new Error('bad public key size');
-  var tmp = new Uint8Array(signedMsg.length);
-  var mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey);
-  if (mlen < 0) return null;
-  var m = new Uint8Array(mlen);
-  for (var i = 0; i < m.length; i++) m[i] = tmp[i];
-  return m;
-};
-
-nacl.sign.detached = function(msg, secretKey) {
-  var signedMsg = nacl.sign(msg, secretKey);
-  var sig = new Uint8Array(crypto_sign_BYTES);
-  for (var i = 0; i < sig.length; i++) sig[i] = signedMsg[i];
-  return sig;
-};
-
-nacl.sign.detached.verify = function(msg, sig, publicKey) {
-  checkArrayTypes(msg, sig, publicKey);
-  if (sig.length !== crypto_sign_BYTES)
-    throw new Error('bad signature size');
-  if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
-    throw new Error('bad public key size');
-  var sm = new Uint8Array(crypto_sign_BYTES + msg.length);
-  var m = new Uint8Array(crypto_sign_BYTES + msg.length);
-  var i;
-  for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i];
-  for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i];
-  return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0);
-};
-
-nacl.sign.keyPair = function() {
-  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
-  var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
-  crypto_sign_keypair(pk, sk);
-  return {publicKey: pk, secretKey: sk};
-};
-
-nacl.sign.keyPair.fromSecretKey = function(secretKey) {
-  checkArrayTypes(secretKey);
-  if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
-    throw new Error('bad secret key size');
-  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
-  for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i];
-  return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
-};
-
-nacl.sign.keyPair.fromSeed = function(seed) {
-  checkArrayTypes(seed);
-  if (seed.length !== crypto_sign_SEEDBYTES)
-    throw new Error('bad seed size');
-  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
-  var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
-  for (var i = 0; i < 32; i++) sk[i] = seed[i];
-  crypto_sign_keypair(pk, sk, true);
-  return {publicKey: pk, secretKey: sk};
-};
-
-nacl.sign.publicKeyLength = crypto_sign_PUBLICKEYBYTES;
-nacl.sign.secretKeyLength = crypto_sign_SECRETKEYBYTES;
-nacl.sign.seedLength = crypto_sign_SEEDBYTES;
-nacl.sign.signatureLength = crypto_sign_BYTES;
-
-nacl.hash = function(msg) {
-  checkArrayTypes(msg);
-  var h = new Uint8Array(crypto_hash_BYTES);
-  crypto_hash(h, msg, msg.length);
-  return h;
-};
-
-nacl.hash.hashLength = crypto_hash_BYTES;
-
-nacl.verify = function(x, y) {
-  checkArrayTypes(x, y);
-  // Zero length arguments are considered not equal.
-  if (x.length === 0 || y.length === 0) return false;
-  if (x.length !== y.length) return false;
-  return (vn(x, 0, y, 0, x.length) === 0) ? true : false;
-};
-
-nacl.setPRNG = function(fn) {
-  randombytes = fn;
-};
-
-(function() {
-  // Initialize PRNG if environment provides CSPRNG.
-  // If not, methods calling randombytes will throw.
-  var crypto = typeof self !== 'undefined' ? (self.crypto || self.msCrypto) : null;
-  if (crypto && crypto.getRandomValues) {
-    // Browsers.
-    var QUOTA = 65536;
-    nacl.setPRNG(function(x, n) {
-      var i, v = new Uint8Array(n);
-      for (i = 0; i < n; i += QUOTA) {
-        crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA)));
-      }
-      for (i = 0; i < n; i++) x[i] = v[i];
-      cleanup(v);
-    });
-  } else if (true) {
-    // Node.js.
-    crypto = __webpack_require__(11);
-    if (crypto && crypto.randomBytes) {
-      nacl.setPRNG(function(x, n) {
-        var i, v = crypto.randomBytes(n);
-        for (i = 0; i < n; i++) x[i] = v[i];
-        cleanup(v);
-      });
-    }
-  }
-})();
-
-})(typeof module !== 'undefined' && module.exports ? module.exports : (self.nacl = self.nacl || {}));
-
-
-/***/ }),
-/* 77 */
-/***/ (function(module, exports) {
-
-module.exports = require("events");
-
-/***/ }),
-/* 78 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.hostedGit = exports.registries = undefined;
-exports.getExoticResolver = getExoticResolver;
-exports.hostedGitFragmentToGitUrl = hostedGitFragmentToGitUrl;
-
-var _baseResolver;
-
-function _load_baseResolver() {
-  return _baseResolver = _interopRequireDefault(__webpack_require__(123));
-}
-
-var _npmResolver;
-
-function _load_npmResolver() {
-  return _npmResolver = _interopRequireDefault(__webpack_require__(217));
-}
-
-var _yarnResolver;
-
-function _load_yarnResolver() {
-  return _yarnResolver = _interopRequireDefault(__webpack_require__(576));
-}
-
-var _gitResolver;
-
-function _load_gitResolver() {
-  return _gitResolver = _interopRequireDefault(__webpack_require__(124));
-}
-
-var _tarballResolver;
-
-function _load_tarballResolver() {
-  return _tarballResolver = _interopRequireDefault(__webpack_require__(574));
-}
-
-var _githubResolver;
-
-function _load_githubResolver() {
-  return _githubResolver = _interopRequireDefault(__webpack_require__(367));
-}
-
-var _fileResolver;
-
-function _load_fileResolver() {
-  return _fileResolver = _interopRequireDefault(__webpack_require__(215));
-}
-
-var _linkResolver;
-
-function _load_linkResolver() {
-  return _linkResolver = _interopRequireDefault(__webpack_require__(368));
-}
-
-var _gitlabResolver;
-
-function _load_gitlabResolver() {
-  return _gitlabResolver = _interopRequireDefault(__webpack_require__(572));
-}
-
-var _gistResolver;
-
-function _load_gistResolver() {
-  return _gistResolver = _interopRequireDefault(__webpack_require__(216));
-}
-
-var _bitbucketResolver;
-
-function _load_bitbucketResolver() {
-  return _bitbucketResolver = _interopRequireDefault(__webpack_require__(571));
-}
-
-var _hostedGitResolver;
-
-function _load_hostedGitResolver() {
-  return _hostedGitResolver = __webpack_require__(109);
-}
-
-var _registryResolver;
-
-function _load_registryResolver() {
-  return _registryResolver = _interopRequireDefault(__webpack_require__(573));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const registries = exports.registries = {
-  npm: (_npmResolver || _load_npmResolver()).default,
-  yarn: (_yarnResolver || _load_yarnResolver()).default
-};
-
-//
-
-const exotics = new Set([(_gitResolver || _load_gitResolver()).default, (_tarballResolver || _load_tarballResolver()).default, (_githubResolver || _load_githubResolver()).default, (_fileResolver || _load_fileResolver()).default, (_linkResolver || _load_linkResolver()).default, (_gitlabResolver || _load_gitlabResolver()).default, (_gistResolver || _load_gistResolver()).default, (_bitbucketResolver || _load_bitbucketResolver()).default]);
-
-function getExoticResolver(pattern) {
-  for (var _iterator = exotics, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const Resolver = _ref;
-
-    if (Resolver.isVersion(pattern)) {
-      return Resolver;
-    }
-  }
-  return null;
-}
-
-//
-
-const hostedGit = exports.hostedGit = {
-  github: (_githubResolver || _load_githubResolver()).default,
-  gitlab: (_gitlabResolver || _load_gitlabResolver()).default,
-  bitbucket: (_bitbucketResolver || _load_bitbucketResolver()).default
-};
-
-function hostedGitFragmentToGitUrl(fragment, reporter) {
-  for (const key in hostedGit) {
-    const Resolver = hostedGit[key];
-    if (Resolver.isVersion(fragment)) {
-      return Resolver.getGitHTTPUrl((0, (_hostedGitResolver || _load_hostedGitResolver()).explodeHostedGitFragment)(fragment, reporter));
-    }
-  }
-
-  return fragment;
-}
-
-//
-
-for (const key in registries) {
-  var _class, _temp;
-
-  const RegistryResolver = registries[key];
-
-  exotics.add((_temp = _class = class extends (_registryResolver || _load_registryResolver()).default {}, _class.protocol = key, _class.factory = RegistryResolver, _temp));
-}
-
-/***/ }),
-/* 79 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * Base prompt implementation
- * Should be extended by prompt types.
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var runAsync = __webpack_require__(181);
-var { filter, flatMap, share, take, takeUntil } = __webpack_require__(63);
-var Choices = __webpack_require__(686);
-var ScreenManager = __webpack_require__(697);
-
-class Prompt {
-  constructor(question, rl, answers) {
-    // Setup instance defaults property
-    _.assign(this, {
-      answers: answers,
-      status: 'pending'
-    });
-
-    // Set defaults prompt options
-    this.opt = _.defaults(_.clone(question), {
-      validate: () => true,
-      filter: val => val,
-      when: () => true,
-      suffix: '',
-      prefix: chalk.green('?')
-    });
-
-    // Make sure name is present
-    if (!this.opt.name) {
-      this.throwParamError('name');
-    }
-
-    // Set default message if no message defined
-    if (!this.opt.message) {
-      this.opt.message = this.opt.name + ':';
-    }
-
-    // Normalize choices
-    if (Array.isArray(this.opt.choices)) {
-      this.opt.choices = new Choices(this.opt.choices, answers);
-    }
-
-    this.rl = rl;
-    this.screen = new ScreenManager(this.rl);
-  }
-
-  /**
-   * Start the Inquiry session and manage output value filtering
-   * @return {Promise}
-   */
-
-  run() {
-    return new Promise(resolve => {
-      this._run(value => resolve(value));
-    });
-  }
-
-  // Default noop (this one should be overwritten in prompts)
-  _run(cb) {
-    cb();
-  }
-
-  /**
-   * Throw an error telling a required parameter is missing
-   * @param  {String} name Name of the missing param
-   * @return {Throw Error}
-   */
-
-  throwParamError(name) {
-    throw new Error('You must provide a `' + name + '` parameter');
-  }
-
-  /**
-   * Called when the UI closes. Override to do any specific cleanup necessary
-   */
-  close() {
-    this.screen.releaseCursor();
-  }
-
-  /**
-   * Run the provided validation method each time a submit event occur.
-   * @param  {Rx.Observable} submit - submit event flow
-   * @return {Object}        Object containing two observables: `success` and `error`
-   */
-  handleSubmitEvents(submit) {
-    var self = this;
-    var validate = runAsync(this.opt.validate);
-    var asyncFilter = runAsync(this.opt.filter);
-    var validation = submit.pipe(
-      flatMap(value =>
-        asyncFilter(value, self.answers).then(
-          filteredValue =>
-            validate(filteredValue, self.answers).then(
-              isValid => ({ isValid: isValid, value: filteredValue }),
-              err => ({ isValid: err })
-            ),
-          err => ({ isValid: err })
-        )
-      ),
-      share()
-    );
-
-    var success = validation.pipe(
-      filter(state => state.isValid === true),
-      take(1)
-    );
-    var error = validation.pipe(
-      filter(state => state.isValid !== true),
-      takeUntil(success)
-    );
-
-    return {
-      success: success,
-      error: error
-    };
-  }
-
-  /**
-   * Generate the prompt question string
-   * @return {String} prompt question string
-   */
-
-  getQuestion() {
-    var message =
-      this.opt.prefix +
-      ' ' +
-      chalk.bold(this.opt.message) +
-      this.opt.suffix +
-      chalk.reset(' ');
-
-    // Append the default if available, and if question isn't answered
-    if (this.opt.default != null && this.status !== 'answered') {
-      // If default password is supplied, hide it
-      if (this.opt.type === 'password') {
-        message += chalk.italic.dim('[hidden] ');
-      } else {
-        message += chalk.dim('(' + this.opt.default + ') ');
-      }
-    }
-
-    return message;
-  }
-}
-
-module.exports = Prompt;
-
-
-/***/ }),
-/* 80 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var { fromEvent } = __webpack_require__(182);
-var { filter, map, share } = __webpack_require__(63);
-
-function normalizeKeypressEvents(value, key) {
-  return { value: value, key: key || {} };
-}
-
-module.exports = function(rl) {
-  var keypress = fromEvent(rl.input, 'keypress', normalizeKeypressEvents)
-    // Ignore `enter` key. On the readline, we only care about the `line` event.
-    .pipe(filter(({ key }) => key.name !== 'enter' && key.name !== 'return'));
-
-  return {
-    line: fromEvent(rl, 'line'),
-    keypress: keypress,
-
-    normalizedUpKey: keypress.pipe(
-      filter(
-        ({ key }) =>
-          key.name === 'up' || key.name === 'k' || (key.name === 'p' && key.ctrl)
-      ),
-      share()
-    ),
-
-    normalizedDownKey: keypress.pipe(
-      filter(
-        ({ key }) =>
-          key.name === 'down' || key.name === 'j' || (key.name === 'n' && key.ctrl)
-      ),
-      share()
-    ),
-
-    numberKey: keypress.pipe(
-      filter(e => e.value && '123456789'.indexOf(e.value) >= 0),
-      map(e => Number(e.value)),
-      share()
-    ),
-
-    spaceKey: keypress.pipe(
-      filter(({ key }) => key && key.name === 'space'),
-      share()
-    ),
-    aKey: keypress.pipe(
-      filter(({ key }) => key && key.name === 'a'),
-      share()
-    ),
-    iKey: keypress.pipe(
-      filter(({ key }) => key && key.name === 'i'),
-      share()
-    )
-  };
-};
-
-
-/***/ }),
-/* 81 */
-/***/ (function(module, exports, __webpack_require__) {
-
-(function(){
-
-    // Copyright (c) 2005  Tom Wu
-    // All Rights Reserved.
-    // See "LICENSE" for details.
-
-    // Basic JavaScript BN library - subset useful for RSA encryption.
-
-    // Bits per digit
-    var dbits;
-
-    // JavaScript engine analysis
-    var canary = 0xdeadbeefcafe;
-    var j_lm = ((canary&0xffffff)==0xefcafe);
-
-    // (public) Constructor
-    function BigInteger(a,b,c) {
-      if(a != null)
-        if("number" == typeof a) this.fromNumber(a,b,c);
-        else if(b == null && "string" != typeof a) this.fromString(a,256);
-        else this.fromString(a,b);
-    }
-
-    // return new, unset BigInteger
-    function nbi() { return new BigInteger(null); }
-
-    // am: Compute w_j += (x*this_i), propagate carries,
-    // c is initial carry, returns final carry.
-    // c < 3*dvalue, x < 2*dvalue, this_i < dvalue
-    // We need to select the fastest one that works in this environment.
-
-    // am1: use a single mult and divide to get the high bits,
-    // max digit bits should be 26 because
-    // max internal value = 2*dvalue^2-2*dvalue (< 2^53)
-    function am1(i,x,w,j,c,n) {
-      while(--n >= 0) {
-        var v = x*this[i++]+w[j]+c;
-        c = Math.floor(v/0x4000000);
-        w[j++] = v&0x3ffffff;
-      }
-      return c;
-    }
-    // am2 avoids a big mult-and-extract completely.
-    // Max digit bits should be <= 30 because we do bitwise ops
-    // on values up to 2*hdvalue^2-hdvalue-1 (< 2^31)
-    function am2(i,x,w,j,c,n) {
-      var xl = x&0x7fff, xh = x>>15;
-      while(--n >= 0) {
-        var l = this[i]&0x7fff;
-        var h = this[i++]>>15;
-        var m = xh*l+h*xl;
-        l = xl*l+((m&0x7fff)<<15)+w[j]+(c&0x3fffffff);
-        c = (l>>>30)+(m>>>15)+xh*h+(c>>>30);
-        w[j++] = l&0x3fffffff;
-      }
-      return c;
-    }
-    // Alternately, set max digit bits to 28 since some
-    // browsers slow down when dealing with 32-bit numbers.
-    function am3(i,x,w,j,c,n) {
-      var xl = x&0x3fff, xh = x>>14;
-      while(--n >= 0) {
-        var l = this[i]&0x3fff;
-        var h = this[i++]>>14;
-        var m = xh*l+h*xl;
-        l = xl*l+((m&0x3fff)<<14)+w[j]+c;
-        c = (l>>28)+(m>>14)+xh*h;
-        w[j++] = l&0xfffffff;
-      }
-      return c;
-    }
-    var inBrowser = typeof navigator !== "undefined";
-    if(inBrowser && j_lm && (navigator.appName == "Microsoft Internet Explorer")) {
-      BigInteger.prototype.am = am2;
-      dbits = 30;
-    }
-    else if(inBrowser && j_lm && (navigator.appName != "Netscape")) {
-      BigInteger.prototype.am = am1;
-      dbits = 26;
-    }
-    else { // Mozilla/Netscape seems to prefer am3
-      BigInteger.prototype.am = am3;
-      dbits = 28;
-    }
-
-    BigInteger.prototype.DB = dbits;
-    BigInteger.prototype.DM = ((1<<dbits)-1);
-    BigInteger.prototype.DV = (1<<dbits);
-
-    var BI_FP = 52;
-    BigInteger.prototype.FV = Math.pow(2,BI_FP);
-    BigInteger.prototype.F1 = BI_FP-dbits;
-    BigInteger.prototype.F2 = 2*dbits-BI_FP;
-
-    // Digit conversions
-    var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz";
-    var BI_RC = new Array();
-    var rr,vv;
-    rr = "0".charCodeAt(0);
-    for(vv = 0; vv <= 9; ++vv) BI_RC[rr++] = vv;
-    rr = "a".charCodeAt(0);
-    for(vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;
-    rr = "A".charCodeAt(0);
-    for(vv = 10; vv < 36; ++vv) BI_RC[rr++] = vv;
-
-    function int2char(n) { return BI_RM.charAt(n); }
-    function intAt(s,i) {
-      var c = BI_RC[s.charCodeAt(i)];
-      return (c==null)?-1:c;
-    }
-
-    // (protected) copy this to r
-    function bnpCopyTo(r) {
-      for(var i = this.t-1; i >= 0; --i) r[i] = this[i];
-      r.t = this.t;
-      r.s = this.s;
-    }
-
-    // (protected) set from integer value x, -DV <= x < DV
-    function bnpFromInt(x) {
-      this.t = 1;
-      this.s = (x<0)?-1:0;
-      if(x > 0) this[0] = x;
-      else if(x < -1) this[0] = x+this.DV;
-      else this.t = 0;
-    }
-
-    // return bigint initialized to value
-    function nbv(i) { var r = nbi(); r.fromInt(i); return r; }
-
-    // (protected) set from string and radix
-    function bnpFromString(s,b) {
-      var k;
-      if(b == 16) k = 4;
-      else if(b == 8) k = 3;
-      else if(b == 256) k = 8; // byte array
-      else if(b == 2) k = 1;
-      else if(b == 32) k = 5;
-      else if(b == 4) k = 2;
-      else { this.fromRadix(s,b); return; }
-      this.t = 0;
-      this.s = 0;
-      var i = s.length, mi = false, sh = 0;
-      while(--i >= 0) {
-        var x = (k==8)?s[i]&0xff:intAt(s,i);
-        if(x < 0) {
-          if(s.charAt(i) == "-") mi = true;
-          continue;
-        }
-        mi = false;
-        if(sh == 0)
-          this[this.t++] = x;
-        else if(sh+k > this.DB) {
-          this[this.t-1] |= (x&((1<<(this.DB-sh))-1))<<sh;
-          this[this.t++] = (x>>(this.DB-sh));
-        }
-        else
-          this[this.t-1] |= x<<sh;
-        sh += k;
-        if(sh >= this.DB) sh -= this.DB;
-      }
-      if(k == 8 && (s[0]&0x80) != 0) {
-        this.s = -1;
-        if(sh > 0) this[this.t-1] |= ((1<<(this.DB-sh))-1)<<sh;
-      }
-      this.clamp();
-      if(mi) BigInteger.ZERO.subTo(this,this);
-    }
-
-    // (protected) clamp off excess high words
-    function bnpClamp() {
-      var c = this.s&this.DM;
-      while(this.t > 0 && this[this.t-1] == c) --this.t;
-    }
-
-    // (public) return string representation in given radix
-    function bnToString(b) {
-      if(this.s < 0) return "-"+this.negate().toString(b);
-      var k;
-      if(b == 16) k = 4;
-      else if(b == 8) k = 3;
-      else if(b == 2) k = 1;
-      else if(b == 32) k = 5;
-      else if(b == 4) k = 2;
-      else return this.toRadix(b);
-      var km = (1<<k)-1, d, m = false, r = "", i = this.t;
-      var p = this.DB-(i*this.DB)%k;
-      if(i-- > 0) {
-        if(p < this.DB && (d = this[i]>>p) > 0) { m = true; r = int2char(d); }
-        while(i >= 0) {
-          if(p < k) {
-            d = (this[i]&((1<<p)-1))<<(k-p);
-            d |= this[--i]>>(p+=this.DB-k);
-          }
-          else {
-            d = (this[i]>>(p-=k))&km;
-            if(p <= 0) { p += this.DB; --i; }
-          }
-          if(d > 0) m = true;
-          if(m) r += int2char(d);
-        }
-      }
-      return m?r:"0";
-    }
-
-    // (public) -this
-    function bnNegate() { var r = nbi(); BigInteger.ZERO.subTo(this,r); return r; }
-
-    // (public) |this|
-    function bnAbs() { return (this.s<0)?this.negate():this; }
-
-    // (public) return + if this > a, - if this < a, 0 if equal
-    function bnCompareTo(a) {
-      var r = this.s-a.s;
-      if(r != 0) return r;
-      var i = this.t;
-      r = i-a.t;
-      if(r != 0) return (this.s<0)?-r:r;
-      while(--i >= 0) if((r=this[i]-a[i]) != 0) return r;
-      return 0;
-    }
-
-    // returns bit length of the integer x
-    function nbits(x) {
-      var r = 1, t;
-      if((t=x>>>16) != 0) { x = t; r += 16; }
-      if((t=x>>8) != 0) { x = t; r += 8; }
-      if((t=x>>4) != 0) { x = t; r += 4; }
-      if((t=x>>2) != 0) { x = t; r += 2; }
-      if((t=x>>1) != 0) { x = t; r += 1; }
-      return r;
-    }
-
-    // (public) return the number of bits in "this"
-    function bnBitLength() {
-      if(this.t <= 0) return 0;
-      return this.DB*(this.t-1)+nbits(this[this.t-1]^(this.s&this.DM));
-    }
-
-    // (protected) r = this << n*DB
-    function bnpDLShiftTo(n,r) {
-      var i;
-      for(i = this.t-1; i >= 0; --i) r[i+n] = this[i];
-      for(i = n-1; i >= 0; --i) r[i] = 0;
-      r.t = this.t+n;
-      r.s = this.s;
-    }
-
-    // (protected) r = this >> n*DB
-    function bnpDRShiftTo(n,r) {
-      for(var i = n; i < this.t; ++i) r[i-n] = this[i];
-      r.t = Math.max(this.t-n,0);
-      r.s = this.s;
-    }
-
-    // (protected) r = this << n
-    function bnpLShiftTo(n,r) {
-      var bs = n%this.DB;
-      var cbs = this.DB-bs;
-      var bm = (1<<cbs)-1;
-      var ds = Math.floor(n/this.DB), c = (this.s<<bs)&this.DM, i;
-      for(i = this.t-1; i >= 0; --i) {
-        r[i+ds+1] = (this[i]>>cbs)|c;
-        c = (this[i]&bm)<<bs;
-      }
-      for(i = ds-1; i >= 0; --i) r[i] = 0;
-      r[ds] = c;
-      r.t = this.t+ds+1;
-      r.s = this.s;
-      r.clamp();
-    }
-
-    // (protected) r = this >> n
-    function bnpRShiftTo(n,r) {
-      r.s = this.s;
-      var ds = Math.floor(n/this.DB);
-      if(ds >= this.t) { r.t = 0; return; }
-      var bs = n%this.DB;
-      var cbs = this.DB-bs;
-      var bm = (1<<bs)-1;
-      r[0] = this[ds]>>bs;
-      for(var i = ds+1; i < this.t; ++i) {
-        r[i-ds-1] |= (this[i]&bm)<<cbs;
-        r[i-ds] = this[i]>>bs;
-      }
-      if(bs > 0) r[this.t-ds-1] |= (this.s&bm)<<cbs;
-      r.t = this.t-ds;
-      r.clamp();
-    }
-
-    // (protected) r = this - a
-    function bnpSubTo(a,r) {
-      var i = 0, c = 0, m = Math.min(a.t,this.t);
-      while(i < m) {
-        c += this[i]-a[i];
-        r[i++] = c&this.DM;
-        c >>= this.DB;
-      }
-      if(a.t < this.t) {
-        c -= a.s;
-        while(i < this.t) {
-          c += this[i];
-          r[i++] = c&this.DM;
-          c >>= this.DB;
-        }
-        c += this.s;
-      }
-      else {
-        c += this.s;
-        while(i < a.t) {
-          c -= a[i];
-          r[i++] = c&this.DM;
-          c >>= this.DB;
-        }
-        c -= a.s;
-      }
-      r.s = (c<0)?-1:0;
-      if(c < -1) r[i++] = this.DV+c;
-      else if(c > 0) r[i++] = c;
-      r.t = i;
-      r.clamp();
-    }
-
-    // (protected) r = this * a, r != this,a (HAC 14.12)
-    // "this" should be the larger one if appropriate.
-    function bnpMultiplyTo(a,r) {
-      var x = this.abs(), y = a.abs();
-      var i = x.t;
-      r.t = i+y.t;
-      while(--i >= 0) r[i] = 0;
-      for(i = 0; i < y.t; ++i) r[i+x.t] = x.am(0,y[i],r,i,0,x.t);
-      r.s = 0;
-      r.clamp();
-      if(this.s != a.s) BigInteger.ZERO.subTo(r,r);
-    }
-
-    // (protected) r = this^2, r != this (HAC 14.16)
-    function bnpSquareTo(r) {
-      var x = this.abs();
-      var i = r.t = 2*x.t;
-      while(--i >= 0) r[i] = 0;
-      for(i = 0; i < x.t-1; ++i) {
-        var c = x.am(i,x[i],r,2*i,0,1);
-        if((r[i+x.t]+=x.am(i+1,2*x[i],r,2*i+1,c,x.t-i-1)) >= x.DV) {
-          r[i+x.t] -= x.DV;
-          r[i+x.t+1] = 1;
-        }
-      }
-      if(r.t > 0) r[r.t-1] += x.am(i,x[i],r,2*i,0,1);
-      r.s = 0;
-      r.clamp();
-    }
-
-    // (protected) divide this by m, quotient and remainder to q, r (HAC 14.20)
-    // r != q, this != m.  q or r may be null.
-    function bnpDivRemTo(m,q,r) {
-      var pm = m.abs();
-      if(pm.t <= 0) return;
-      var pt = this.abs();
-      if(pt.t < pm.t) {
-        if(q != null) q.fromInt(0);
-        if(r != null) this.copyTo(r);
-        return;
-      }
-      if(r == null) r = nbi();
-      var y = nbi(), ts = this.s, ms = m.s;
-      var nsh = this.DB-nbits(pm[pm.t-1]);   // normalize modulus
-      if(nsh > 0) { pm.lShiftTo(nsh,y); pt.lShiftTo(nsh,r); }
-      else { pm.copyTo(y); pt.copyTo(r); }
-      var ys = y.t;
-      var y0 = y[ys-1];
-      if(y0 == 0) return;
-      var yt = y0*(1<<this.F1)+((ys>1)?y[ys-2]>>this.F2:0);
-      var d1 = this.FV/yt, d2 = (1<<this.F1)/yt, e = 1<<this.F2;
-      var i = r.t, j = i-ys, t = (q==null)?nbi():q;
-      y.dlShiftTo(j,t);
-      if(r.compareTo(t) >= 0) {
-        r[r.t++] = 1;
-        r.subTo(t,r);
-      }
-      BigInteger.ONE.dlShiftTo(ys,t);
-      t.subTo(y,y);  // "negative" y so we can replace sub with am later
-      while(y.t < ys) y[y.t++] = 0;
-      while(--j >= 0) {
-        // Estimate quotient digit
-        var qd = (r[--i]==y0)?this.DM:Math.floor(r[i]*d1+(r[i-1]+e)*d2);
-        if((r[i]+=y.am(0,qd,r,j,0,ys)) < qd) {   // Try it out
-          y.dlShiftTo(j,t);
-          r.subTo(t,r);
-          while(r[i] < --qd) r.subTo(t,r);
-        }
-      }
-      if(q != null) {
-        r.drShiftTo(ys,q);
-        if(ts != ms) BigInteger.ZERO.subTo(q,q);
-      }
-      r.t = ys;
-      r.clamp();
-      if(nsh > 0) r.rShiftTo(nsh,r); // Denormalize remainder
-      if(ts < 0) BigInteger.ZERO.subTo(r,r);
-    }
-
-    // (public) this mod a
-    function bnMod(a) {
-      var r = nbi();
-      this.abs().divRemTo(a,null,r);
-      if(this.s < 0 && r.compareTo(BigInteger.ZERO) > 0) a.subTo(r,r);
-      return r;
-    }
-
-    // Modular reduction using "classic" algorithm
-    function Classic(m) { this.m = m; }
-    function cConvert(x) {
-      if(x.s < 0 || x.compareTo(this.m) >= 0) return x.mod(this.m);
-      else return x;
-    }
-    function cRevert(x) { return x; }
-    function cReduce(x) { x.divRemTo(this.m,null,x); }
-    function cMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
-    function cSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
-
-    Classic.prototype.convert = cConvert;
-    Classic.prototype.revert = cRevert;
-    Classic.prototype.reduce = cReduce;
-    Classic.prototype.mulTo = cMulTo;
-    Classic.prototype.sqrTo = cSqrTo;
-
-    // (protected) return "-1/this % 2^DB"; useful for Mont. reduction
-    // justification:
-    //         xy == 1 (mod m)
-    //         xy =  1+km
-    //   xy(2-xy) = (1+km)(1-km)
-    // x[y(2-xy)] = 1-k^2m^2
-    // x[y(2-xy)] == 1 (mod m^2)
-    // if y is 1/x mod m, then y(2-xy) is 1/x mod m^2
-    // should reduce x and y(2-xy) by m^2 at each step to keep size bounded.
-    // JS multiply "overflows" differently from C/C++, so care is needed here.
-    function bnpInvDigit() {
-      if(this.t < 1) return 0;
-      var x = this[0];
-      if((x&1) == 0) return 0;
-      var y = x&3;       // y == 1/x mod 2^2
-      y = (y*(2-(x&0xf)*y))&0xf; // y == 1/x mod 2^4
-      y = (y*(2-(x&0xff)*y))&0xff;   // y == 1/x mod 2^8
-      y = (y*(2-(((x&0xffff)*y)&0xffff)))&0xffff;    // y == 1/x mod 2^16
-      // last step - calculate inverse mod DV directly;
-      // assumes 16 < DB <= 32 and assumes ability to handle 48-bit ints
-      y = (y*(2-x*y%this.DV))%this.DV;       // y == 1/x mod 2^dbits
-      // we really want the negative inverse, and -DV < y < DV
-      return (y>0)?this.DV-y:-y;
-    }
-
-    // Montgomery reduction
-    function Montgomery(m) {
-      this.m = m;
-      this.mp = m.invDigit();
-      this.mpl = this.mp&0x7fff;
-      this.mph = this.mp>>15;
-      this.um = (1<<(m.DB-15))-1;
-      this.mt2 = 2*m.t;
-    }
-
-    // xR mod m
-    function montConvert(x) {
-      var r = nbi();
-      x.abs().dlShiftTo(this.m.t,r);
-      r.divRemTo(this.m,null,r);
-      if(x.s < 0 && r.compareTo(BigInteger.ZERO) > 0) this.m.subTo(r,r);
-      return r;
-    }
-
-    // x/R mod m
-    function montRevert(x) {
-      var r = nbi();
-      x.copyTo(r);
-      this.reduce(r);
-      return r;
-    }
-
-    // x = x/R mod m (HAC 14.32)
-    function montReduce(x) {
-      while(x.t <= this.mt2) // pad x so am has enough room later
-        x[x.t++] = 0;
-      for(var i = 0; i < this.m.t; ++i) {
-        // faster way of calculating u0 = x[i]*mp mod DV
-        var j = x[i]&0x7fff;
-        var u0 = (j*this.mpl+(((j*this.mph+(x[i]>>15)*this.mpl)&this.um)<<15))&x.DM;
-        // use am to combine the multiply-shift-add into one call
-        j = i+this.m.t;
-        x[j] += this.m.am(0,u0,x,i,0,this.m.t);
-        // propagate carry
-        while(x[j] >= x.DV) { x[j] -= x.DV; x[++j]++; }
-      }
-      x.clamp();
-      x.drShiftTo(this.m.t,x);
-      if(x.compareTo(this.m) >= 0) x.subTo(this.m,x);
-    }
-
-    // r = "x^2/R mod m"; x != r
-    function montSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
-
-    // r = "xy/R mod m"; x,y != r
-    function montMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
-
-    Montgomery.prototype.convert = montConvert;
-    Montgomery.prototype.revert = montRevert;
-    Montgomery.prototype.reduce = montReduce;
-    Montgomery.prototype.mulTo = montMulTo;
-    Montgomery.prototype.sqrTo = montSqrTo;
-
-    // (protected) true iff this is even
-    function bnpIsEven() { return ((this.t>0)?(this[0]&1):this.s) == 0; }
-
-    // (protected) this^e, e < 2^32, doing sqr and mul with "r" (HAC 14.79)
-    function bnpExp(e,z) {
-      if(e > 0xffffffff || e < 1) return BigInteger.ONE;
-      var r = nbi(), r2 = nbi(), g = z.convert(this), i = nbits(e)-1;
-      g.copyTo(r);
-      while(--i >= 0) {
-        z.sqrTo(r,r2);
-        if((e&(1<<i)) > 0) z.mulTo(r2,g,r);
-        else { var t = r; r = r2; r2 = t; }
-      }
-      return z.revert(r);
-    }
-
-    // (public) this^e % m, 0 <= e < 2^32
-    function bnModPowInt(e,m) {
-      var z;
-      if(e < 256 || m.isEven()) z = new Classic(m); else z = new Montgomery(m);
-      return this.exp(e,z);
-    }
-
-    // protected
-    BigInteger.prototype.copyTo = bnpCopyTo;
-    BigInteger.prototype.fromInt = bnpFromInt;
-    BigInteger.prototype.fromString = bnpFromString;
-    BigInteger.prototype.clamp = bnpClamp;
-    BigInteger.prototype.dlShiftTo = bnpDLShiftTo;
-    BigInteger.prototype.drShiftTo = bnpDRShiftTo;
-    BigInteger.prototype.lShiftTo = bnpLShiftTo;
-    BigInteger.prototype.rShiftTo = bnpRShiftTo;
-    BigInteger.prototype.subTo = bnpSubTo;
-    BigInteger.prototype.multiplyTo = bnpMultiplyTo;
-    BigInteger.prototype.squareTo = bnpSquareTo;
-    BigInteger.prototype.divRemTo = bnpDivRemTo;
-    BigInteger.prototype.invDigit = bnpInvDigit;
-    BigInteger.prototype.isEven = bnpIsEven;
-    BigInteger.prototype.exp = bnpExp;
-
-    // public
-    BigInteger.prototype.toString = bnToString;
-    BigInteger.prototype.negate = bnNegate;
-    BigInteger.prototype.abs = bnAbs;
-    BigInteger.prototype.compareTo = bnCompareTo;
-    BigInteger.prototype.bitLength = bnBitLength;
-    BigInteger.prototype.mod = bnMod;
-    BigInteger.prototype.modPowInt = bnModPowInt;
-
-    // "constants"
-    BigInteger.ZERO = nbv(0);
-    BigInteger.ONE = nbv(1);
-
-    // Copyright (c) 2005-2009  Tom Wu
-    // All Rights Reserved.
-    // See "LICENSE" for details.
-
-    // Extended JavaScript BN functions, required for RSA private ops.
-
-    // Version 1.1: new BigInteger("0", 10) returns "proper" zero
-    // Version 1.2: square() API, isProbablePrime fix
-
-    // (public)
-    function bnClone() { var r = nbi(); this.copyTo(r); return r; }
-
-    // (public) return value as integer
-    function bnIntValue() {
-      if(this.s < 0) {
-        if(this.t == 1) return this[0]-this.DV;
-        else if(this.t == 0) return -1;
-      }
-      else if(this.t == 1) return this[0];
-      else if(this.t == 0) return 0;
-      // assumes 16 < DB < 32
-      return ((this[1]&((1<<(32-this.DB))-1))<<this.DB)|this[0];
-    }
-
-    // (public) return value as byte
-    function bnByteValue() { return (this.t==0)?this.s:(this[0]<<24)>>24; }
-
-    // (public) return value as short (assumes DB>=16)
-    function bnShortValue() { return (this.t==0)?this.s:(this[0]<<16)>>16; }
-
-    // (protected) return x s.t. r^x < DV
-    function bnpChunkSize(r) { return Math.floor(Math.LN2*this.DB/Math.log(r)); }
-
-    // (public) 0 if this == 0, 1 if this > 0
-    function bnSigNum() {
-      if(this.s < 0) return -1;
-      else if(this.t <= 0 || (this.t == 1 && this[0] <= 0)) return 0;
-      else return 1;
-    }
-
-    // (protected) convert to radix string
-    function bnpToRadix(b) {
-      if(b == null) b = 10;
-      if(this.signum() == 0 || b < 2 || b > 36) return "0";
-      var cs = this.chunkSize(b);
-      var a = Math.pow(b,cs);
-      var d = nbv(a), y = nbi(), z = nbi(), r = "";
-      this.divRemTo(d,y,z);
-      while(y.signum() > 0) {
-        r = (a+z.intValue()).toString(b).substr(1) + r;
-        y.divRemTo(d,y,z);
-      }
-      return z.intValue().toString(b) + r;
-    }
-
-    // (protected) convert from radix string
-    function bnpFromRadix(s,b) {
-      this.fromInt(0);
-      if(b == null) b = 10;
-      var cs = this.chunkSize(b);
-      var d = Math.pow(b,cs), mi = false, j = 0, w = 0;
-      for(var i = 0; i < s.length; ++i) {
-        var x = intAt(s,i);
-        if(x < 0) {
-          if(s.charAt(i) == "-" && this.signum() == 0) mi = true;
-          continue;
-        }
-        w = b*w+x;
-        if(++j >= cs) {
-          this.dMultiply(d);
-          this.dAddOffset(w,0);
-          j = 0;
-          w = 0;
-        }
-      }
-      if(j > 0) {
-        this.dMultiply(Math.pow(b,j));
-        this.dAddOffset(w,0);
-      }
-      if(mi) BigInteger.ZERO.subTo(this,this);
-    }
-
-    // (protected) alternate constructor
-    function bnpFromNumber(a,b,c) {
-      if("number" == typeof b) {
-        // new BigInteger(int,int,RNG)
-        if(a < 2) this.fromInt(1);
-        else {
-          this.fromNumber(a,c);
-          if(!this.testBit(a-1))	// force MSB set
-            this.bitwiseTo(BigInteger.ONE.shiftLeft(a-1),op_or,this);
-          if(this.isEven()) this.dAddOffset(1,0); // force odd
-          while(!this.isProbablePrime(b)) {
-            this.dAddOffset(2,0);
-            if(this.bitLength() > a) this.subTo(BigInteger.ONE.shiftLeft(a-1),this);
-          }
-        }
-      }
-      else {
-        // new BigInteger(int,RNG)
-        var x = new Array(), t = a&7;
-        x.length = (a>>3)+1;
-        b.nextBytes(x);
-        if(t > 0) x[0] &= ((1<<t)-1); else x[0] = 0;
-        this.fromString(x,256);
-      }
-    }
-
-    // (public) convert to bigendian byte array
-    function bnToByteArray() {
-      var i = this.t, r = new Array();
-      r[0] = this.s;
-      var p = this.DB-(i*this.DB)%8, d, k = 0;
-      if(i-- > 0) {
-        if(p < this.DB && (d = this[i]>>p) != (this.s&this.DM)>>p)
-          r[k++] = d|(this.s<<(this.DB-p));
-        while(i >= 0) {
-          if(p < 8) {
-            d = (this[i]&((1<<p)-1))<<(8-p);
-            d |= this[--i]>>(p+=this.DB-8);
-          }
-          else {
-            d = (this[i]>>(p-=8))&0xff;
-            if(p <= 0) { p += this.DB; --i; }
-          }
-          if((d&0x80) != 0) d |= -256;
-          if(k == 0 && (this.s&0x80) != (d&0x80)) ++k;
-          if(k > 0 || d != this.s) r[k++] = d;
-        }
-      }
-      return r;
-    }
-
-    function bnEquals(a) { return(this.compareTo(a)==0); }
-    function bnMin(a) { return(this.compareTo(a)<0)?this:a; }
-    function bnMax(a) { return(this.compareTo(a)>0)?this:a; }
-
-    // (protected) r = this op a (bitwise)
-    function bnpBitwiseTo(a,op,r) {
-      var i, f, m = Math.min(a.t,this.t);
-      for(i = 0; i < m; ++i) r[i] = op(this[i],a[i]);
-      if(a.t < this.t) {
-        f = a.s&this.DM;
-        for(i = m; i < this.t; ++i) r[i] = op(this[i],f);
-        r.t = this.t;
-      }
-      else {
-        f = this.s&this.DM;
-        for(i = m; i < a.t; ++i) r[i] = op(f,a[i]);
-        r.t = a.t;
-      }
-      r.s = op(this.s,a.s);
-      r.clamp();
-    }
-
-    // (public) this & a
-    function op_and(x,y) { return x&y; }
-    function bnAnd(a) { var r = nbi(); this.bitwiseTo(a,op_and,r); return r; }
-
-    // (public) this | a
-    function op_or(x,y) { return x|y; }
-    function bnOr(a) { var r = nbi(); this.bitwiseTo(a,op_or,r); return r; }
-
-    // (public) this ^ a
-    function op_xor(x,y) { return x^y; }
-    function bnXor(a) { var r = nbi(); this.bitwiseTo(a,op_xor,r); return r; }
-
-    // (public) this & ~a
-    function op_andnot(x,y) { return x&~y; }
-    function bnAndNot(a) { var r = nbi(); this.bitwiseTo(a,op_andnot,r); return r; }
-
-    // (public) ~this
-    function bnNot() {
-      var r = nbi();
-      for(var i = 0; i < this.t; ++i) r[i] = this.DM&~this[i];
-      r.t = this.t;
-      r.s = ~this.s;
-      return r;
-    }
-
-    // (public) this << n
-    function bnShiftLeft(n) {
-      var r = nbi();
-      if(n < 0) this.rShiftTo(-n,r); else this.lShiftTo(n,r);
-      return r;
-    }
-
-    // (public) this >> n
-    function bnShiftRight(n) {
-      var r = nbi();
-      if(n < 0) this.lShiftTo(-n,r); else this.rShiftTo(n,r);
-      return r;
-    }
-
-    // return index of lowest 1-bit in x, x < 2^31
-    function lbit(x) {
-      if(x == 0) return -1;
-      var r = 0;
-      if((x&0xffff) == 0) { x >>= 16; r += 16; }
-      if((x&0xff) == 0) { x >>= 8; r += 8; }
-      if((x&0xf) == 0) { x >>= 4; r += 4; }
-      if((x&3) == 0) { x >>= 2; r += 2; }
-      if((x&1) == 0) ++r;
-      return r;
-    }
-
-    // (public) returns index of lowest 1-bit (or -1 if none)
-    function bnGetLowestSetBit() {
-      for(var i = 0; i < this.t; ++i)
-        if(this[i] != 0) return i*this.DB+lbit(this[i]);
-      if(this.s < 0) return this.t*this.DB;
-      return -1;
-    }
-
-    // return number of 1 bits in x
-    function cbit(x) {
-      var r = 0;
-      while(x != 0) { x &= x-1; ++r; }
-      return r;
-    }
-
-    // (public) return number of set bits
-    function bnBitCount() {
-      var r = 0, x = this.s&this.DM;
-      for(var i = 0; i < this.t; ++i) r += cbit(this[i]^x);
-      return r;
-    }
-
-    // (public) true iff nth bit is set
-    function bnTestBit(n) {
-      var j = Math.floor(n/this.DB);
-      if(j >= this.t) return(this.s!=0);
-      return((this[j]&(1<<(n%this.DB)))!=0);
-    }
-
-    // (protected) this op (1<<n)
-    function bnpChangeBit(n,op) {
-      var r = BigInteger.ONE.shiftLeft(n);
-      this.bitwiseTo(r,op,r);
-      return r;
-    }
-
-    // (public) this | (1<<n)
-    function bnSetBit(n) { return this.changeBit(n,op_or); }
-
-    // (public) this & ~(1<<n)
-    function bnClearBit(n) { return this.changeBit(n,op_andnot); }
-
-    // (public) this ^ (1<<n)
-    function bnFlipBit(n) { return this.changeBit(n,op_xor); }
-
-    // (protected) r = this + a
-    function bnpAddTo(a,r) {
-      var i = 0, c = 0, m = Math.min(a.t,this.t);
-      while(i < m) {
-        c += this[i]+a[i];
-        r[i++] = c&this.DM;
-        c >>= this.DB;
-      }
-      if(a.t < this.t) {
-        c += a.s;
-        while(i < this.t) {
-          c += this[i];
-          r[i++] = c&this.DM;
-          c >>= this.DB;
-        }
-        c += this.s;
-      }
-      else {
-        c += this.s;
-        while(i < a.t) {
-          c += a[i];
-          r[i++] = c&this.DM;
-          c >>= this.DB;
-        }
-        c += a.s;
-      }
-      r.s = (c<0)?-1:0;
-      if(c > 0) r[i++] = c;
-      else if(c < -1) r[i++] = this.DV+c;
-      r.t = i;
-      r.clamp();
-    }
-
-    // (public) this + a
-    function bnAdd(a) { var r = nbi(); this.addTo(a,r); return r; }
-
-    // (public) this - a
-    function bnSubtract(a) { var r = nbi(); this.subTo(a,r); return r; }
-
-    // (public) this * a
-    function bnMultiply(a) { var r = nbi(); this.multiplyTo(a,r); return r; }
-
-    // (public) this^2
-    function bnSquare() { var r = nbi(); this.squareTo(r); return r; }
-
-    // (public) this / a
-    function bnDivide(a) { var r = nbi(); this.divRemTo(a,r,null); return r; }
-
-    // (public) this % a
-    function bnRemainder(a) { var r = nbi(); this.divRemTo(a,null,r); return r; }
-
-    // (public) [this/a,this%a]
-    function bnDivideAndRemainder(a) {
-      var q = nbi(), r = nbi();
-      this.divRemTo(a,q,r);
-      return new Array(q,r);
-    }
-
-    // (protected) this *= n, this >= 0, 1 < n < DV
-    function bnpDMultiply(n) {
-      this[this.t] = this.am(0,n-1,this,0,0,this.t);
-      ++this.t;
-      this.clamp();
-    }
-
-    // (protected) this += n << w words, this >= 0
-    function bnpDAddOffset(n,w) {
-      if(n == 0) return;
-      while(this.t <= w) this[this.t++] = 0;
-      this[w] += n;
-      while(this[w] >= this.DV) {
-        this[w] -= this.DV;
-        if(++w >= this.t) this[this.t++] = 0;
-        ++this[w];
-      }
-    }
-
-    // A "null" reducer
-    function NullExp() {}
-    function nNop(x) { return x; }
-    function nMulTo(x,y,r) { x.multiplyTo(y,r); }
-    function nSqrTo(x,r) { x.squareTo(r); }
-
-    NullExp.prototype.convert = nNop;
-    NullExp.prototype.revert = nNop;
-    NullExp.prototype.mulTo = nMulTo;
-    NullExp.prototype.sqrTo = nSqrTo;
-
-    // (public) this^e
-    function bnPow(e) { return this.exp(e,new NullExp()); }
-
-    // (protected) r = lower n words of "this * a", a.t <= n
-    // "this" should be the larger one if appropriate.
-    function bnpMultiplyLowerTo(a,n,r) {
-      var i = Math.min(this.t+a.t,n);
-      r.s = 0; // assumes a,this >= 0
-      r.t = i;
-      while(i > 0) r[--i] = 0;
-      var j;
-      for(j = r.t-this.t; i < j; ++i) r[i+this.t] = this.am(0,a[i],r,i,0,this.t);
-      for(j = Math.min(a.t,n); i < j; ++i) this.am(0,a[i],r,i,0,n-i);
-      r.clamp();
-    }
-
-    // (protected) r = "this * a" without lower n words, n > 0
-    // "this" should be the larger one if appropriate.
-    function bnpMultiplyUpperTo(a,n,r) {
-      --n;
-      var i = r.t = this.t+a.t-n;
-      r.s = 0; // assumes a,this >= 0
-      while(--i >= 0) r[i] = 0;
-      for(i = Math.max(n-this.t,0); i < a.t; ++i)
-        r[this.t+i-n] = this.am(n-i,a[i],r,0,0,this.t+i-n);
-      r.clamp();
-      r.drShiftTo(1,r);
-    }
-
-    // Barrett modular reduction
-    function Barrett(m) {
-      // setup Barrett
-      this.r2 = nbi();
-      this.q3 = nbi();
-      BigInteger.ONE.dlShiftTo(2*m.t,this.r2);
-      this.mu = this.r2.divide(m);
-      this.m = m;
-    }
-
-    function barrettConvert(x) {
-      if(x.s < 0 || x.t > 2*this.m.t) return x.mod(this.m);
-      else if(x.compareTo(this.m) < 0) return x;
-      else { var r = nbi(); x.copyTo(r); this.reduce(r); return r; }
-    }
-
-    function barrettRevert(x) { return x; }
-
-    // x = x mod m (HAC 14.42)
-    function barrettReduce(x) {
-      x.drShiftTo(this.m.t-1,this.r2);
-      if(x.t > this.m.t+1) { x.t = this.m.t+1; x.clamp(); }
-      this.mu.multiplyUpperTo(this.r2,this.m.t+1,this.q3);
-      this.m.multiplyLowerTo(this.q3,this.m.t+1,this.r2);
-      while(x.compareTo(this.r2) < 0) x.dAddOffset(1,this.m.t+1);
-      x.subTo(this.r2,x);
-      while(x.compareTo(this.m) >= 0) x.subTo(this.m,x);
-    }
-
-    // r = x^2 mod m; x != r
-    function barrettSqrTo(x,r) { x.squareTo(r); this.reduce(r); }
-
-    // r = x*y mod m; x,y != r
-    function barrettMulTo(x,y,r) { x.multiplyTo(y,r); this.reduce(r); }
-
-    Barrett.prototype.convert = barrettConvert;
-    Barrett.prototype.revert = barrettRevert;
-    Barrett.prototype.reduce = barrettReduce;
-    Barrett.prototype.mulTo = barrettMulTo;
-    Barrett.prototype.sqrTo = barrettSqrTo;
-
-    // (public) this^e % m (HAC 14.85)
-    function bnModPow(e,m) {
-      var i = e.bitLength(), k, r = nbv(1), z;
-      if(i <= 0) return r;
-      else if(i < 18) k = 1;
-      else if(i < 48) k = 3;
-      else if(i < 144) k = 4;
-      else if(i < 768) k = 5;
-      else k = 6;
-      if(i < 8)
-        z = new Classic(m);
-      else if(m.isEven())
-        z = new Barrett(m);
-      else
-        z = new Montgomery(m);
-
-      // precomputation
-      var g = new Array(), n = 3, k1 = k-1, km = (1<<k)-1;
-      g[1] = z.convert(this);
-      if(k > 1) {
-        var g2 = nbi();
-        z.sqrTo(g[1],g2);
-        while(n <= km) {
-          g[n] = nbi();
-          z.mulTo(g2,g[n-2],g[n]);
-          n += 2;
-        }
-      }
-
-      var j = e.t-1, w, is1 = true, r2 = nbi(), t;
-      i = nbits(e[j])-1;
-      while(j >= 0) {
-        if(i >= k1) w = (e[j]>>(i-k1))&km;
-        else {
-          w = (e[j]&((1<<(i+1))-1))<<(k1-i);
-          if(j > 0) w |= e[j-1]>>(this.DB+i-k1);
-        }
-
-        n = k;
-        while((w&1) == 0) { w >>= 1; --n; }
-        if((i -= n) < 0) { i += this.DB; --j; }
-        if(is1) {	// ret == 1, don't bother squaring or multiplying it
-          g[w].copyTo(r);
-          is1 = false;
-        }
-        else {
-          while(n > 1) { z.sqrTo(r,r2); z.sqrTo(r2,r); n -= 2; }
-          if(n > 0) z.sqrTo(r,r2); else { t = r; r = r2; r2 = t; }
-          z.mulTo(r2,g[w],r);
-        }
-
-        while(j >= 0 && (e[j]&(1<<i)) == 0) {
-          z.sqrTo(r,r2); t = r; r = r2; r2 = t;
-          if(--i < 0) { i = this.DB-1; --j; }
-        }
-      }
-      return z.revert(r);
-    }
-
-    // (public) gcd(this,a) (HAC 14.54)
-    function bnGCD(a) {
-      var x = (this.s<0)?this.negate():this.clone();
-      var y = (a.s<0)?a.negate():a.clone();
-      if(x.compareTo(y) < 0) { var t = x; x = y; y = t; }
-      var i = x.getLowestSetBit(), g = y.getLowestSetBit();
-      if(g < 0) return x;
-      if(i < g) g = i;
-      if(g > 0) {
-        x.rShiftTo(g,x);
-        y.rShiftTo(g,y);
-      }
-      while(x.signum() > 0) {
-        if((i = x.getLowestSetBit()) > 0) x.rShiftTo(i,x);
-        if((i = y.getLowestSetBit()) > 0) y.rShiftTo(i,y);
-        if(x.compareTo(y) >= 0) {
-          x.subTo(y,x);
-          x.rShiftTo(1,x);
-        }
-        else {
-          y.subTo(x,y);
-          y.rShiftTo(1,y);
-        }
-      }
-      if(g > 0) y.lShiftTo(g,y);
-      return y;
-    }
-
-    // (protected) this % n, n < 2^26
-    function bnpModInt(n) {
-      if(n <= 0) return 0;
-      var d = this.DV%n, r = (this.s<0)?n-1:0;
-      if(this.t > 0)
-        if(d == 0) r = this[0]%n;
-        else for(var i = this.t-1; i >= 0; --i) r = (d*r+this[i])%n;
-      return r;
-    }
-
-    // (public) 1/this % m (HAC 14.61)
-    function bnModInverse(m) {
-      var ac = m.isEven();
-      if((this.isEven() && ac) || m.signum() == 0) return BigInteger.ZERO;
-      var u = m.clone(), v = this.clone();
-      var a = nbv(1), b = nbv(0), c = nbv(0), d = nbv(1);
-      while(u.signum() != 0) {
-        while(u.isEven()) {
-          u.rShiftTo(1,u);
-          if(ac) {
-            if(!a.isEven() || !b.isEven()) { a.addTo(this,a); b.subTo(m,b); }
-            a.rShiftTo(1,a);
-          }
-          else if(!b.isEven()) b.subTo(m,b);
-          b.rShiftTo(1,b);
-        }
-        while(v.isEven()) {
-          v.rShiftTo(1,v);
-          if(ac) {
-            if(!c.isEven() || !d.isEven()) { c.addTo(this,c); d.subTo(m,d); }
-            c.rShiftTo(1,c);
-          }
-          else if(!d.isEven()) d.subTo(m,d);
-          d.rShiftTo(1,d);
-        }
-        if(u.compareTo(v) >= 0) {
-          u.subTo(v,u);
-          if(ac) a.subTo(c,a);
-          b.subTo(d,b);
-        }
-        else {
-          v.subTo(u,v);
-          if(ac) c.subTo(a,c);
-          d.subTo(b,d);
-        }
-      }
-      if(v.compareTo(BigInteger.ONE) != 0) return BigInteger.ZERO;
-      if(d.compareTo(m) >= 0) return d.subtract(m);
-      if(d.signum() < 0) d.addTo(m,d); else return d;
-      if(d.signum() < 0) return d.add(m); else return d;
-    }
-
-    var lowprimes = [2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997];
-    var lplim = (1<<26)/lowprimes[lowprimes.length-1];
-
-    // (public) test primality with certainty >= 1-.5^t
-    function bnIsProbablePrime(t) {
-      var i, x = this.abs();
-      if(x.t == 1 && x[0] <= lowprimes[lowprimes.length-1]) {
-        for(i = 0; i < lowprimes.length; ++i)
-          if(x[0] == lowprimes[i]) return true;
-        return false;
-      }
-      if(x.isEven()) return false;
-      i = 1;
-      while(i < lowprimes.length) {
-        var m = lowprimes[i], j = i+1;
-        while(j < lowprimes.length && m < lplim) m *= lowprimes[j++];
-        m = x.modInt(m);
-        while(i < j) if(m%lowprimes[i++] == 0) return false;
-      }
-      return x.millerRabin(t);
-    }
-
-    // (protected) true if probably prime (HAC 4.24, Miller-Rabin)
-    function bnpMillerRabin(t) {
-      var n1 = this.subtract(BigInteger.ONE);
-      var k = n1.getLowestSetBit();
-      if(k <= 0) return false;
-      var r = n1.shiftRight(k);
-      t = (t+1)>>1;
-      if(t > lowprimes.length) t = lowprimes.length;
-      var a = nbi();
-      for(var i = 0; i < t; ++i) {
-        //Pick bases at random, instead of starting at 2
-        a.fromInt(lowprimes[Math.floor(Math.random()*lowprimes.length)]);
-        var y = a.modPow(r,this);
-        if(y.compareTo(BigInteger.ONE) != 0 && y.compareTo(n1) != 0) {
-          var j = 1;
-          while(j++ < k && y.compareTo(n1) != 0) {
-            y = y.modPowInt(2,this);
-            if(y.compareTo(BigInteger.ONE) == 0) return false;
-          }
-          if(y.compareTo(n1) != 0) return false;
-        }
-      }
-      return true;
-    }
-
-    // protected
-    BigInteger.prototype.chunkSize = bnpChunkSize;
-    BigInteger.prototype.toRadix = bnpToRadix;
-    BigInteger.prototype.fromRadix = bnpFromRadix;
-    BigInteger.prototype.fromNumber = bnpFromNumber;
-    BigInteger.prototype.bitwiseTo = bnpBitwiseTo;
-    BigInteger.prototype.changeBit = bnpChangeBit;
-    BigInteger.prototype.addTo = bnpAddTo;
-    BigInteger.prototype.dMultiply = bnpDMultiply;
-    BigInteger.prototype.dAddOffset = bnpDAddOffset;
-    BigInteger.prototype.multiplyLowerTo = bnpMultiplyLowerTo;
-    BigInteger.prototype.multiplyUpperTo = bnpMultiplyUpperTo;
-    BigInteger.prototype.modInt = bnpModInt;
-    BigInteger.prototype.millerRabin = bnpMillerRabin;
-
-    // public
-    BigInteger.prototype.clone = bnClone;
-    BigInteger.prototype.intValue = bnIntValue;
-    BigInteger.prototype.byteValue = bnByteValue;
-    BigInteger.prototype.shortValue = bnShortValue;
-    BigInteger.prototype.signum = bnSigNum;
-    BigInteger.prototype.toByteArray = bnToByteArray;
-    BigInteger.prototype.equals = bnEquals;
-    BigInteger.prototype.min = bnMin;
-    BigInteger.prototype.max = bnMax;
-    BigInteger.prototype.and = bnAnd;
-    BigInteger.prototype.or = bnOr;
-    BigInteger.prototype.xor = bnXor;
-    BigInteger.prototype.andNot = bnAndNot;
-    BigInteger.prototype.not = bnNot;
-    BigInteger.prototype.shiftLeft = bnShiftLeft;
-    BigInteger.prototype.shiftRight = bnShiftRight;
-    BigInteger.prototype.getLowestSetBit = bnGetLowestSetBit;
-    BigInteger.prototype.bitCount = bnBitCount;
-    BigInteger.prototype.testBit = bnTestBit;
-    BigInteger.prototype.setBit = bnSetBit;
-    BigInteger.prototype.clearBit = bnClearBit;
-    BigInteger.prototype.flipBit = bnFlipBit;
-    BigInteger.prototype.add = bnAdd;
-    BigInteger.prototype.subtract = bnSubtract;
-    BigInteger.prototype.multiply = bnMultiply;
-    BigInteger.prototype.divide = bnDivide;
-    BigInteger.prototype.remainder = bnRemainder;
-    BigInteger.prototype.divideAndRemainder = bnDivideAndRemainder;
-    BigInteger.prototype.modPow = bnModPow;
-    BigInteger.prototype.modInverse = bnModInverse;
-    BigInteger.prototype.pow = bnPow;
-    BigInteger.prototype.gcd = bnGCD;
-    BigInteger.prototype.isProbablePrime = bnIsProbablePrime;
-
-    // JSBN-specific extension
-    BigInteger.prototype.square = bnSquare;
-
-    // Expose the Barrett function
-    BigInteger.prototype.Barrett = Barrett
-
-    // BigInteger interfaces not implemented in jsbn:
-
-    // BigInteger(int signum, byte[] magnitude)
-    // double doubleValue()
-    // float floatValue()
-    // int hashCode()
-    // long longValue()
-    // static BigInteger valueOf(long val)
-
-	// Random number generator - requires a PRNG backend, e.g. prng4.js
-
-	// For best results, put code like
-	// <body onClick='rng_seed_time();' onKeyPress='rng_seed_time();'>
-	// in your main HTML document.
-
-	var rng_state;
-	var rng_pool;
-	var rng_pptr;
-
-	// Mix in a 32-bit integer into the pool
-	function rng_seed_int(x) {
-	  rng_pool[rng_pptr++] ^= x & 255;
-	  rng_pool[rng_pptr++] ^= (x >> 8) & 255;
-	  rng_pool[rng_pptr++] ^= (x >> 16) & 255;
-	  rng_pool[rng_pptr++] ^= (x >> 24) & 255;
-	  if(rng_pptr >= rng_psize) rng_pptr -= rng_psize;
-	}
-
-	// Mix in the current time (w/milliseconds) into the pool
-	function rng_seed_time() {
-	  rng_seed_int(new Date().getTime());
-	}
-
-	// Initialize the pool with junk if needed.
-	if(rng_pool == null) {
-	  rng_pool = new Array();
-	  rng_pptr = 0;
-	  var t;
-	  if(typeof window !== "undefined" && window.crypto) {
-		if (window.crypto.getRandomValues) {
-		  // Use webcrypto if available
-		  var ua = new Uint8Array(32);
-		  window.crypto.getRandomValues(ua);
-		  for(t = 0; t < 32; ++t)
-			rng_pool[rng_pptr++] = ua[t];
-		}
-		else if(navigator.appName == "Netscape" && navigator.appVersion < "5") {
-		  // Extract entropy (256 bits) from NS4 RNG if available
-		  var z = window.crypto.random(32);
-		  for(t = 0; t < z.length; ++t)
-			rng_pool[rng_pptr++] = z.charCodeAt(t) & 255;
-		}
-	  }
-	  while(rng_pptr < rng_psize) {  // extract some randomness from Math.random()
-		t = Math.floor(65536 * Math.random());
-		rng_pool[rng_pptr++] = t >>> 8;
-		rng_pool[rng_pptr++] = t & 255;
-	  }
-	  rng_pptr = 0;
-	  rng_seed_time();
-	  //rng_seed_int(window.screenX);
-	  //rng_seed_int(window.screenY);
-	}
-
-	function rng_get_byte() {
-	  if(rng_state == null) {
-		rng_seed_time();
-		rng_state = prng_newstate();
-		rng_state.init(rng_pool);
-		for(rng_pptr = 0; rng_pptr < rng_pool.length; ++rng_pptr)
-		  rng_pool[rng_pptr] = 0;
-		rng_pptr = 0;
-		//rng_pool = null;
-	  }
-	  // TODO: allow reseeding after first request
-	  return rng_state.next();
-	}
-
-	function rng_get_bytes(ba) {
-	  var i;
-	  for(i = 0; i < ba.length; ++i) ba[i] = rng_get_byte();
-	}
-
-	function SecureRandom() {}
-
-	SecureRandom.prototype.nextBytes = rng_get_bytes;
-
-	// prng4.js - uses Arcfour as a PRNG
-
-	function Arcfour() {
-	  this.i = 0;
-	  this.j = 0;
-	  this.S = new Array();
-	}
-
-	// Initialize arcfour context from key, an array of ints, each from [0..255]
-	function ARC4init(key) {
-	  var i, j, t;
-	  for(i = 0; i < 256; ++i)
-		this.S[i] = i;
-	  j = 0;
-	  for(i = 0; i < 256; ++i) {
-		j = (j + this.S[i] + key[i % key.length]) & 255;
-		t = this.S[i];
-		this.S[i] = this.S[j];
-		this.S[j] = t;
-	  }
-	  this.i = 0;
-	  this.j = 0;
-	}
-
-	function ARC4next() {
-	  var t;
-	  this.i = (this.i + 1) & 255;
-	  this.j = (this.j + this.S[this.i]) & 255;
-	  t = this.S[this.i];
-	  this.S[this.i] = this.S[this.j];
-	  this.S[this.j] = t;
-	  return this.S[(t + this.S[this.i]) & 255];
-	}
-
-	Arcfour.prototype.init = ARC4init;
-	Arcfour.prototype.next = ARC4next;
-
-	// Plug in your RNG constructor here
-	function prng_newstate() {
-	  return new Arcfour();
-	}
-
-	// Pool size must be a multiple of 4 and greater than 32.
-	// An array of bytes the size of the pool will be passed to init()
-	var rng_psize = 256;
-
-  BigInteger.SecureRandom = SecureRandom;
-  BigInteger.BigInteger = BigInteger;
-  if (true) {
-    exports = module.exports = BigInteger;
-  } else {
-    this.BigInteger = BigInteger;
-    this.SecureRandom = SecureRandom;
-  }
-
-}).call(this);
-
-
-/***/ }),
-/* 82 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = minimatch
-minimatch.Minimatch = Minimatch
-
-var path = { sep: '/' }
-try {
-  path = __webpack_require__(0)
-} catch (er) {}
-
-var GLOBSTAR = minimatch.GLOBSTAR = Minimatch.GLOBSTAR = {}
-var expand = __webpack_require__(229)
-
-var plTypes = {
-  '!': { open: '(?:(?!(?:', close: '))[^/]*?)'},
-  '?': { open: '(?:', close: ')?' },
-  '+': { open: '(?:', close: ')+' },
-  '*': { open: '(?:', close: ')*' },
-  '@': { open: '(?:', close: ')' }
-}
-
-// any single thing other than /
-// don't need to escape / when using new RegExp()
-var qmark = '[^/]'
-
-// * => any number of characters
-var star = qmark + '*?'
-
-// ** when dots are allowed.  Anything goes, except .. and .
-// not (^ or / followed by one or two dots followed by $ or /),
-// followed by anything, any number of times.
-var twoStarDot = '(?:(?!(?:\\\/|^)(?:\\.{1,2})($|\\\/)).)*?'
-
-// not a ^ or / followed by a dot,
-// followed by anything, any number of times.
-var twoStarNoDot = '(?:(?!(?:\\\/|^)\\.).)*?'
-
-// characters that need to be escaped in RegExp.
-var reSpecials = charSet('().*{}+?[]^$\\!')
-
-// "abc" -> { a:true, b:true, c:true }
-function charSet (s) {
-  return s.split('').reduce(function (set, c) {
-    set[c] = true
-    return set
-  }, {})
-}
-
-// normalizes slashes.
-var slashSplit = /\/+/
-
-minimatch.filter = filter
-function filter (pattern, options) {
-  options = options || {}
-  return function (p, i, list) {
-    return minimatch(p, pattern, options)
-  }
-}
-
-function ext (a, b) {
-  a = a || {}
-  b = b || {}
-  var t = {}
-  Object.keys(b).forEach(function (k) {
-    t[k] = b[k]
-  })
-  Object.keys(a).forEach(function (k) {
-    t[k] = a[k]
-  })
-  return t
-}
-
-minimatch.defaults = function (def) {
-  if (!def || !Object.keys(def).length) return minimatch
-
-  var orig = minimatch
-
-  var m = function minimatch (p, pattern, options) {
-    return orig.minimatch(p, pattern, ext(def, options))
-  }
-
-  m.Minimatch = function Minimatch (pattern, options) {
-    return new orig.Minimatch(pattern, ext(def, options))
-  }
-
-  return m
-}
-
-Minimatch.defaults = function (def) {
-  if (!def || !Object.keys(def).length) return Minimatch
-  return minimatch.defaults(def).Minimatch
-}
-
-function minimatch (p, pattern, options) {
-  if (typeof pattern !== 'string') {
-    throw new TypeError('glob pattern string required')
-  }
-
-  if (!options) options = {}
-
-  // shortcut: comments match nothing.
-  if (!options.nocomment && pattern.charAt(0) === '#') {
-    return false
-  }
-
-  // "" only matches ""
-  if (pattern.trim() === '') return p === ''
-
-  return new Minimatch(pattern, options).match(p)
-}
-
-function Minimatch (pattern, options) {
-  if (!(this instanceof Minimatch)) {
-    return new Minimatch(pattern, options)
-  }
-
-  if (typeof pattern !== 'string') {
-    throw new TypeError('glob pattern string required')
-  }
-
-  if (!options) options = {}
-  pattern = pattern.trim()
-
-  // windows support: need to use /, not \
-  if (path.sep !== '/') {
-    pattern = pattern.split(path.sep).join('/')
-  }
-
-  this.options = options
-  this.set = []
-  this.pattern = pattern
-  this.regexp = null
-  this.negate = false
-  this.comment = false
-  this.empty = false
-
-  // make the set of regexps etc.
-  this.make()
-}
-
-Minimatch.prototype.debug = function () {}
-
-Minimatch.prototype.make = make
-function make () {
-  // don't do it more than once.
-  if (this._made) return
-
-  var pattern = this.pattern
-  var options = this.options
-
-  // empty patterns and comments match nothing.
-  if (!options.nocomment && pattern.charAt(0) === '#') {
-    this.comment = true
-    return
-  }
-  if (!pattern) {
-    this.empty = true
-    return
-  }
-
-  // step 1: figure out negation, etc.
-  this.parseNegate()
-
-  // step 2: expand braces
-  var set = this.globSet = this.braceExpand()
-
-  if (options.debug) this.debug = console.error
-
-  this.debug(this.pattern, set)
-
-  // step 3: now we have a set, so turn each one into a series of path-portion
-  // matching patterns.
-  // These will be regexps, except in the case of "**", which is
-  // set to the GLOBSTAR object for globstar behavior,
-  // and will not contain any / characters
-  set = this.globParts = set.map(function (s) {
-    return s.split(slashSplit)
-  })
-
-  this.debug(this.pattern, set)
-
-  // glob --> regexps
-  set = set.map(function (s, si, set) {
-    return s.map(this.parse, this)
-  }, this)
-
-  this.debug(this.pattern, set)
-
-  // filter out everything that didn't compile properly.
-  set = set.filter(function (s) {
-    return s.indexOf(false) === -1
-  })
-
-  this.debug(this.pattern, set)
-
-  this.set = set
-}
-
-Minimatch.prototype.parseNegate = parseNegate
-function parseNegate () {
-  var pattern = this.pattern
-  var negate = false
-  var options = this.options
-  var negateOffset = 0
-
-  if (options.nonegate) return
-
-  for (var i = 0, l = pattern.length
-    ; i < l && pattern.charAt(i) === '!'
-    ; i++) {
-    negate = !negate
-    negateOffset++
-  }
-
-  if (negateOffset) this.pattern = pattern.substr(negateOffset)
-  this.negate = negate
-}
-
-// Brace expansion:
-// a{b,c}d -> abd acd
-// a{b,}c -> abc ac
-// a{0..3}d -> a0d a1d a2d a3d
-// a{b,c{d,e}f}g -> abg acdfg acefg
-// a{b,c}d{e,f}g -> abdeg acdeg abdeg abdfg
-//
-// Invalid sets are not expanded.
-// a{2..}b -> a{2..}b
-// a{b}c -> a{b}c
-minimatch.braceExpand = function (pattern, options) {
-  return braceExpand(pattern, options)
-}
-
-Minimatch.prototype.braceExpand = braceExpand
-
-function braceExpand (pattern, options) {
-  if (!options) {
-    if (this instanceof Minimatch) {
-      options = this.options
-    } else {
-      options = {}
-    }
-  }
-
-  pattern = typeof pattern === 'undefined'
-    ? this.pattern : pattern
-
-  if (typeof pattern === 'undefined') {
-    throw new TypeError('undefined pattern')
-  }
-
-  if (options.nobrace ||
-    !pattern.match(/\{.*\}/)) {
-    // shortcut. no need to expand.
-    return [pattern]
-  }
-
-  return expand(pattern)
-}
-
-// parse a component of the expanded set.
-// At this point, no pattern may contain "/" in it
-// so we're going to return a 2d array, where each entry is the full
-// pattern, split on '/', and then turned into a regular expression.
-// A regexp is made at the end which joins each array with an
-// escaped /, and another full one which joins each regexp with |.
-//
-// Following the lead of Bash 4.1, note that "**" only has special meaning
-// when it is the *only* thing in a path portion.  Otherwise, any series
-// of * is equivalent to a single *.  Globstar behavior is enabled by
-// default, and can be disabled by setting options.noglobstar.
-Minimatch.prototype.parse = parse
-var SUBPARSE = {}
-function parse (pattern, isSub) {
-  if (pattern.length > 1024 * 64) {
-    throw new TypeError('pattern is too long')
-  }
-
-  var options = this.options
-
-  // shortcuts
-  if (!options.noglobstar && pattern === '**') return GLOBSTAR
-  if (pattern === '') return ''
-
-  var re = ''
-  var hasMagic = !!options.nocase
-  var escaping = false
-  // ? => one single character
-  var patternListStack = []
-  var negativeLists = []
-  var stateChar
-  var inClass = false
-  var reClassStart = -1
-  var classStart = -1
-  // . and .. never match anything that doesn't start with .,
-  // even when options.dot is set.
-  var patternStart = pattern.charAt(0) === '.' ? '' // anything
-  // not (start or / followed by . or .. followed by / or end)
-  : options.dot ? '(?!(?:^|\\\/)\\.{1,2}(?:$|\\\/))'
-  : '(?!\\.)'
-  var self = this
-
-  function clearStateChar () {
-    if (stateChar) {
-      // we had some state-tracking character
-      // that wasn't consumed by this pass.
-      switch (stateChar) {
-        case '*':
-          re += star
-          hasMagic = true
-        break
-        case '?':
-          re += qmark
-          hasMagic = true
-        break
-        default:
-          re += '\\' + stateChar
-        break
-      }
-      self.debug('clearStateChar %j %j', stateChar, re)
-      stateChar = false
-    }
-  }
-
-  for (var i = 0, len = pattern.length, c
-    ; (i < len) && (c = pattern.charAt(i))
-    ; i++) {
-    this.debug('%s\t%s %s %j', pattern, i, re, c)
-
-    // skip over any that are escaped.
-    if (escaping && reSpecials[c]) {
-      re += '\\' + c
-      escaping = false
-      continue
-    }
-
-    switch (c) {
-      case '/':
-        // completely not allowed, even escaped.
-        // Should already be path-split by now.
-        return false
-
-      case '\\':
-        clearStateChar()
-        escaping = true
-      continue
-
-      // the various stateChar values
-      // for the "extglob" stuff.
-      case '?':
-      case '*':
-      case '+':
-      case '@':
-      case '!':
-        this.debug('%s\t%s %s %j <-- stateChar', pattern, i, re, c)
-
-        // all of those are literals inside a class, except that
-        // the glob [!a] means [^a] in regexp
-        if (inClass) {
-          this.debug('  in class')
-          if (c === '!' && i === classStart + 1) c = '^'
-          re += c
-          continue
-        }
-
-        // if we already have a stateChar, then it means
-        // that there was something like ** or +? in there.
-        // Handle the stateChar, then proceed with this one.
-        self.debug('call clearStateChar %j', stateChar)
-        clearStateChar()
-        stateChar = c
-        // if extglob is disabled, then +(asdf|foo) isn't a thing.
-        // just clear the statechar *now*, rather than even diving into
-        // the patternList stuff.
-        if (options.noext) clearStateChar()
-      continue
-
-      case '(':
-        if (inClass) {
-          re += '('
-          continue
-        }
-
-        if (!stateChar) {
-          re += '\\('
-          continue
-        }
-
-        patternListStack.push({
-          type: stateChar,
-          start: i - 1,
-          reStart: re.length,
-          open: plTypes[stateChar].open,
-          close: plTypes[stateChar].close
-        })
-        // negation is (?:(?!js)[^/]*)
-        re += stateChar === '!' ? '(?:(?!(?:' : '(?:'
-        this.debug('plType %j %j', stateChar, re)
-        stateChar = false
-      continue
-
-      case ')':
-        if (inClass || !patternListStack.length) {
-          re += '\\)'
-          continue
-        }
-
-        clearStateChar()
-        hasMagic = true
-        var pl = patternListStack.pop()
-        // negation is (?:(?!js)[^/]*)
-        // The others are (?:<pattern>)<type>
-        re += pl.close
-        if (pl.type === '!') {
-          negativeLists.push(pl)
-        }
-        pl.reEnd = re.length
-      continue
-
-      case '|':
-        if (inClass || !patternListStack.length || escaping) {
-          re += '\\|'
-          escaping = false
-          continue
-        }
-
-        clearStateChar()
-        re += '|'
-      continue
-
-      // these are mostly the same in regexp and glob
-      case '[':
-        // swallow any state-tracking char before the [
-        clearStateChar()
-
-        if (inClass) {
-          re += '\\' + c
-          continue
-        }
-
-        inClass = true
-        classStart = i
-        reClassStart = re.length
-        re += c
-      continue
-
-      case ']':
-        //  a right bracket shall lose its special
-        //  meaning and represent itself in
-        //  a bracket expression if it occurs
-        //  first in the list.  -- POSIX.2 2.8.3.2
-        if (i === classStart + 1 || !inClass) {
-          re += '\\' + c
-          escaping = false
-          continue
-        }
-
-        // handle the case where we left a class open.
-        // "[z-a]" is valid, equivalent to "\[z-a\]"
-        if (inClass) {
-          // split where the last [ was, make sure we don't have
-          // an invalid re. if so, re-walk the contents of the
-          // would-be class to re-translate any characters that
-          // were passed through as-is
-          // TODO: It would probably be faster to determine this
-          // without a try/catch and a new RegExp, but it's tricky
-          // to do safely.  For now, this is safe and works.
-          var cs = pattern.substring(classStart + 1, i)
-          try {
-            RegExp('[' + cs + ']')
-          } catch (er) {
-            // not a valid class!
-            var sp = this.parse(cs, SUBPARSE)
-            re = re.substr(0, reClassStart) + '\\[' + sp[0] + '\\]'
-            hasMagic = hasMagic || sp[1]
-            inClass = false
-            continue
-          }
-        }
-
-        // finish up the class.
-        hasMagic = true
-        inClass = false
-        re += c
-      continue
-
-      default:
-        // swallow any state char that wasn't consumed
-        clearStateChar()
-
-        if (escaping) {
-          // no need
-          escaping = false
-        } else if (reSpecials[c]
-          && !(c === '^' && inClass)) {
-          re += '\\'
-        }
-
-        re += c
-
-    } // switch
-  } // for
-
-  // handle the case where we left a class open.
-  // "[abc" is valid, equivalent to "\[abc"
-  if (inClass) {
-    // split where the last [ was, and escape it
-    // this is a huge pita.  We now have to re-walk
-    // the contents of the would-be class to re-translate
-    // any characters that were passed through as-is
-    cs = pattern.substr(classStart + 1)
-    sp = this.parse(cs, SUBPARSE)
-    re = re.substr(0, reClassStart) + '\\[' + sp[0]
-    hasMagic = hasMagic || sp[1]
-  }
-
-  // handle the case where we had a +( thing at the *end*
-  // of the pattern.
-  // each pattern list stack adds 3 chars, and we need to go through
-  // and escape any | chars that were passed through as-is for the regexp.
-  // Go through and escape them, taking care not to double-escape any
-  // | chars that were already escaped.
-  for (pl = patternListStack.pop(); pl; pl = patternListStack.pop()) {
-    var tail = re.slice(pl.reStart + pl.open.length)
-    this.debug('setting tail', re, pl)
-    // maybe some even number of \, then maybe 1 \, followed by a |
-    tail = tail.replace(/((?:\\{2}){0,64})(\\?)\|/g, function (_, $1, $2) {
-      if (!$2) {
-        // the | isn't already escaped, so escape it.
-        $2 = '\\'
-      }
-
-      // need to escape all those slashes *again*, without escaping the
-      // one that we need for escaping the | character.  As it works out,
-      // escaping an even number of slashes can be done by simply repeating
-      // it exactly after itself.  That's why this trick works.
-      //
-      // I am sorry that you have to see this.
-      return $1 + $1 + $2 + '|'
-    })
-
-    this.debug('tail=%j\n   %s', tail, tail, pl, re)
-    var t = pl.type === '*' ? star
-      : pl.type === '?' ? qmark
-      : '\\' + pl.type
-
-    hasMagic = true
-    re = re.slice(0, pl.reStart) + t + '\\(' + tail
-  }
-
-  // handle trailing things that only matter at the very end.
-  clearStateChar()
-  if (escaping) {
-    // trailing \\
-    re += '\\\\'
-  }
-
-  // only need to apply the nodot start if the re starts with
-  // something that could conceivably capture a dot
-  var addPatternStart = false
-  switch (re.charAt(0)) {
-    case '.':
-    case '[':
-    case '(': addPatternStart = true
-  }
-
-  // Hack to work around lack of negative lookbehind in JS
-  // A pattern like: *.!(x).!(y|z) needs to ensure that a name
-  // like 'a.xyz.yz' doesn't match.  So, the first negative
-  // lookahead, has to look ALL the way ahead, to the end of
-  // the pattern.
-  for (var n = negativeLists.length - 1; n > -1; n--) {
-    var nl = negativeLists[n]
-
-    var nlBefore = re.slice(0, nl.reStart)
-    var nlFirst = re.slice(nl.reStart, nl.reEnd - 8)
-    var nlLast = re.slice(nl.reEnd - 8, nl.reEnd)
-    var nlAfter = re.slice(nl.reEnd)
-
-    nlLast += nlAfter
-
-    // Handle nested stuff like *(*.js|!(*.json)), where open parens
-    // mean that we should *not* include the ) in the bit that is considered
-    // "after" the negated section.
-    var openParensBefore = nlBefore.split('(').length - 1
-    var cleanAfter = nlAfter
-    for (i = 0; i < openParensBefore; i++) {
-      cleanAfter = cleanAfter.replace(/\)[+*?]?/, '')
-    }
-    nlAfter = cleanAfter
-
-    var dollar = ''
-    if (nlAfter === '' && isSub !== SUBPARSE) {
-      dollar = '$'
-    }
-    var newRe = nlBefore + nlFirst + nlAfter + dollar + nlLast
-    re = newRe
-  }
-
-  // if the re is not "" at this point, then we need to make sure
-  // it doesn't match against an empty path part.
-  // Otherwise a/* will match a/, which it should not.
-  if (re !== '' && hasMagic) {
-    re = '(?=.)' + re
-  }
-
-  if (addPatternStart) {
-    re = patternStart + re
-  }
-
-  // parsing just a piece of a larger pattern.
-  if (isSub === SUBPARSE) {
-    return [re, hasMagic]
-  }
-
-  // skip the regexp for non-magical patterns
-  // unescape anything in it, though, so that it'll be
-  // an exact match against a file etc.
-  if (!hasMagic) {
-    return globUnescape(pattern)
-  }
-
-  var flags = options.nocase ? 'i' : ''
-  try {
-    var regExp = new RegExp('^' + re + '$', flags)
-  } catch (er) {
-    // If it was an invalid regular expression, then it can't match
-    // anything.  This trick looks for a character after the end of
-    // the string, which is of course impossible, except in multi-line
-    // mode, but it's not a /m regex.
-    return new RegExp('$.')
-  }
-
-  regExp._glob = pattern
-  regExp._src = re
-
-  return regExp
-}
-
-minimatch.makeRe = function (pattern, options) {
-  return new Minimatch(pattern, options || {}).makeRe()
-}
-
-Minimatch.prototype.makeRe = makeRe
-function makeRe () {
-  if (this.regexp || this.regexp === false) return this.regexp
-
-  // at this point, this.set is a 2d array of partial
-  // pattern strings, or "**".
-  //
-  // It's better to use .match().  This function shouldn't
-  // be used, really, but it's pretty convenient sometimes,
-  // when you just want to work with a regex.
-  var set = this.set
-
-  if (!set.length) {
-    this.regexp = false
-    return this.regexp
-  }
-  var options = this.options
-
-  var twoStar = options.noglobstar ? star
-    : options.dot ? twoStarDot
-    : twoStarNoDot
-  var flags = options.nocase ? 'i' : ''
-
-  var re = set.map(function (pattern) {
-    return pattern.map(function (p) {
-      return (p === GLOBSTAR) ? twoStar
-      : (typeof p === 'string') ? regExpEscape(p)
-      : p._src
-    }).join('\\\/')
-  }).join('|')
-
-  // must match entire pattern
-  // ending in a * or ** will make it less strict.
-  re = '^(?:' + re + ')$'
-
-  // can match anything, as long as it's not this.
-  if (this.negate) re = '^(?!' + re + ').*$'
-
-  try {
-    this.regexp = new RegExp(re, flags)
-  } catch (ex) {
-    this.regexp = false
-  }
-  return this.regexp
-}
-
-minimatch.match = function (list, pattern, options) {
-  options = options || {}
-  var mm = new Minimatch(pattern, options)
-  list = list.filter(function (f) {
-    return mm.match(f)
-  })
-  if (mm.options.nonull && !list.length) {
-    list.push(pattern)
-  }
-  return list
-}
-
-Minimatch.prototype.match = match
-function match (f, partial) {
-  this.debug('match', f, this.pattern)
-  // short-circuit in the case of busted things.
-  // comments, etc.
-  if (this.comment) return false
-  if (this.empty) return f === ''
-
-  if (f === '/' && partial) return true
-
-  var options = this.options
-
-  // windows: need to use /, not \
-  if (path.sep !== '/') {
-    f = f.split(path.sep).join('/')
-  }
-
-  // treat the test path as a set of pathparts.
-  f = f.split(slashSplit)
-  this.debug(this.pattern, 'split', f)
-
-  // just ONE of the pattern sets in this.set needs to match
-  // in order for it to be valid.  If negating, then just one
-  // match means that we have failed.
-  // Either way, return on the first hit.
-
-  var set = this.set
-  this.debug(this.pattern, 'set', set)
-
-  // Find the basename of the path by looking for the last non-empty segment
-  var filename
-  var i
-  for (i = f.length - 1; i >= 0; i--) {
-    filename = f[i]
-    if (filename) break
-  }
-
-  for (i = 0; i < set.length; i++) {
-    var pattern = set[i]
-    var file = f
-    if (options.matchBase && pattern.length === 1) {
-      file = [filename]
-    }
-    var hit = this.matchOne(file, pattern, partial)
-    if (hit) {
-      if (options.flipNegate) return true
-      return !this.negate
-    }
-  }
-
-  // didn't get any hits.  this is success if it's a negative
-  // pattern, failure otherwise.
-  if (options.flipNegate) return false
-  return this.negate
-}
-
-// set partial to true to test if, for example,
-// "/a/b" matches the start of "/*/b/*/d"
-// Partial means, if you run out of file before you run
-// out of pattern, then that's fine, as long as all
-// the parts match.
-Minimatch.prototype.matchOne = function (file, pattern, partial) {
-  var options = this.options
-
-  this.debug('matchOne',
-    { 'this': this, file: file, pattern: pattern })
-
-  this.debug('matchOne', file.length, pattern.length)
-
-  for (var fi = 0,
-      pi = 0,
-      fl = file.length,
-      pl = pattern.length
-      ; (fi < fl) && (pi < pl)
-      ; fi++, pi++) {
-    this.debug('matchOne loop')
-    var p = pattern[pi]
-    var f = file[fi]
-
-    this.debug(pattern, p, f)
-
-    // should be impossible.
-    // some invalid regexp stuff in the set.
-    if (p === false) return false
-
-    if (p === GLOBSTAR) {
-      this.debug('GLOBSTAR', [pattern, p, f])
-
-      // "**"
-      // a/**/b/**/c would match the following:
-      // a/b/x/y/z/c
-      // a/x/y/z/b/c
-      // a/b/x/b/x/c
-      // a/b/c
-      // To do this, take the rest of the pattern after
-      // the **, and see if it would match the file remainder.
-      // If so, return success.
-      // If not, the ** "swallows" a segment, and try again.
-      // This is recursively awful.
-      //
-      // a/**/b/**/c matching a/b/x/y/z/c
-      // - a matches a
-      // - doublestar
-      //   - matchOne(b/x/y/z/c, b/**/c)
-      //     - b matches b
-      //     - doublestar
-      //       - matchOne(x/y/z/c, c) -> no
-      //       - matchOne(y/z/c, c) -> no
-      //       - matchOne(z/c, c) -> no
-      //       - matchOne(c, c) yes, hit
-      var fr = fi
-      var pr = pi + 1
-      if (pr === pl) {
-        this.debug('** at the end')
-        // a ** at the end will just swallow the rest.
-        // We have found a match.
-        // however, it will not swallow /.x, unless
-        // options.dot is set.
-        // . and .. are *never* matched by **, for explosively
-        // exponential reasons.
-        for (; fi < fl; fi++) {
-          if (file[fi] === '.' || file[fi] === '..' ||
-            (!options.dot && file[fi].charAt(0) === '.')) return false
-        }
-        return true
-      }
-
-      // ok, let's see if we can swallow whatever we can.
-      while (fr < fl) {
-        var swallowee = file[fr]
-
-        this.debug('\nglobstar while', file, fr, pattern, pr, swallowee)
-
-        // XXX remove this slice.  Just pass the start index.
-        if (this.matchOne(file.slice(fr), pattern.slice(pr), partial)) {
-          this.debug('globstar found match!', fr, fl, swallowee)
-          // found a match.
-          return true
-        } else {
-          // can't swallow "." or ".." ever.
-          // can only swallow ".foo" when explicitly asked.
-          if (swallowee === '.' || swallowee === '..' ||
-            (!options.dot && swallowee.charAt(0) === '.')) {
-            this.debug('dot detected!', file, fr, pattern, pr)
-            break
-          }
-
-          // ** swallows a segment, and continue.
-          this.debug('globstar swallow a segment, and continue')
-          fr++
-        }
-      }
-
-      // no match was found.
-      // However, in partial mode, we can't say this is necessarily over.
-      // If there's more *pattern* left, then
-      if (partial) {
-        // ran out of file
-        this.debug('\n>>> no match, partial?', file, fr, pattern, pr)
-        if (fr === fl) return true
-      }
-      return false
-    }
-
-    // something other than **
-    // non-magic patterns just have to match exactly
-    // patterns with magic have been turned into regexps.
-    var hit
-    if (typeof p === 'string') {
-      if (options.nocase) {
-        hit = f.toLowerCase() === p.toLowerCase()
-      } else {
-        hit = f === p
-      }
-      this.debug('string match', p, f, hit)
-    } else {
-      hit = f.match(p)
-      this.debug('pattern match', p, f, hit)
-    }
-
-    if (!hit) return false
-  }
-
-  // Note: ending in / means that we'll get a final ""
-  // at the end of the pattern.  This can only match a
-  // corresponding "" at the end of the file.
-  // If the file ends in /, then it can only match a
-  // a pattern that ends in /, unless the pattern just
-  // doesn't have any more for it. But, a/b/ should *not*
-  // match "a/b/*", even though "" matches against the
-  // [^/]*? pattern, except in partial mode, where it might
-  // simply not be reached yet.
-  // However, a/b/ should still satisfy a/*
-
-  // now either we fell off the end of the pattern, or we're done.
-  if (fi === fl && pi === pl) {
-    // ran out of pattern and filename at the same time.
-    // an exact hit!
-    return true
-  } else if (fi === fl) {
-    // ran out of file, but still had pattern left.
-    // this is ok if we're doing the match as part of
-    // a glob fs traversal.
-    return partial
-  } else if (pi === pl) {
-    // ran out of pattern, still have file left.
-    // this is only acceptable if we're on the very last
-    // empty segment of a file with a trailing slash.
-    // a/* should match a/b/
-    var emptyFileEnd = (fi === fl - 1) && (file[fi] === '')
-    return emptyFileEnd
-  }
-
-  // should be unreachable.
-  throw new Error('wtf?')
-}
-
-// replace stuff like \* with *
-function globUnescape (s) {
-  return s.replace(/\\(.)/g, '$1')
-}
-
-function regExpEscape (s) {
-  return s.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&')
-}
-
-
-/***/ }),
-/* 83 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var wrappy = __webpack_require__(161)
-module.exports = wrappy(once)
-module.exports.strict = wrappy(onceStrict)
-
-once.proto = once(function () {
-  Object.defineProperty(Function.prototype, 'once', {
-    value: function () {
-      return once(this)
-    },
-    configurable: true
-  })
-
-  Object.defineProperty(Function.prototype, 'onceStrict', {
-    value: function () {
-      return onceStrict(this)
-    },
-    configurable: true
-  })
-})
-
-function once (fn) {
-  var f = function () {
-    if (f.called) return f.value
-    f.called = true
-    return f.value = fn.apply(this, arguments)
-  }
-  f.called = false
-  return f
-}
-
-function onceStrict (fn) {
-  var f = function () {
-    if (f.called)
-      throw new Error(f.onceError)
-    f.called = true
-    return f.value = fn.apply(this, arguments)
-  }
-  var name = fn.name || 'Function wrapped with `once`'
-  f.onceError = name + " shouldn't be called more than once"
-  f.called = false
-  return f
-}
-
-
-/***/ }),
-/* 84 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return InnerSubscriber; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
-/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
-
-
-var InnerSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](InnerSubscriber, _super);
-    function InnerSubscriber(parent, outerValue, outerIndex) {
-        var _this = _super.call(this) || this;
-        _this.parent = parent;
-        _this.outerValue = outerValue;
-        _this.outerIndex = outerIndex;
-        _this.index = 0;
-        return _this;
-    }
-    InnerSubscriber.prototype._next = function (value) {
-        this.parent.notifyNext(this.outerValue, value, this.outerIndex, this.index++, this);
-    };
-    InnerSubscriber.prototype._error = function (error) {
-        this.parent.notifyError(error, this);
-        this.unsubscribe();
-    };
-    InnerSubscriber.prototype._complete = function () {
-        this.parent.notifyComplete(this);
-        this.unsubscribe();
-    };
-    return InnerSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_1__Subscriber__["a" /* Subscriber */]));
-
-//# sourceMappingURL=InnerSubscriber.js.map
-
-
-/***/ }),
-/* 85 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = fromArray;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscription__ = __webpack_require__(25);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__util_subscribeToArray__ = __webpack_require__(447);
-/** PURE_IMPORTS_START _Observable,_Subscription,_util_subscribeToArray PURE_IMPORTS_END */
-
-
-
-function fromArray(input, scheduler) {
-    if (!scheduler) {
-        return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__util_subscribeToArray__["a" /* subscribeToArray */])(input));
-    }
-    else {
-        return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) {
-            var sub = new __WEBPACK_IMPORTED_MODULE_1__Subscription__["a" /* Subscription */]();
-            var i = 0;
-            sub.add(scheduler.schedule(function () {
-                if (i === input.length) {
-                    subscriber.complete();
-                    return;
-                }
-                subscriber.next(input[i++]);
-                if (!subscriber.closed) {
-                    sub.add(this.schedule());
-                }
-            }));
-            return sub;
-        });
-    }
-}
-//# sourceMappingURL=fromArray.js.map
-
-
-/***/ }),
-/* 86 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var crypto = __webpack_require__(11);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-
-var pkcs1 = __webpack_require__(327);
-var pkcs8 = __webpack_require__(157);
-var sshpriv = __webpack_require__(192);
-var rfc4253 = __webpack_require__(103);
-
-var errors = __webpack_require__(74);
-
-/*
- * For reading we support both PKCS#1 and PKCS#8. If we find a private key,
- * we just take the public component of it and use that.
- */
-function read(buf, options, forceType) {
-	var input = buf;
-	if (typeof (buf) !== 'string') {
-		assert.buffer(buf, 'buf');
-		buf = buf.toString('ascii');
-	}
-
-	var lines = buf.trim().split('\n');
-
-	var m = lines[0].match(/*JSSTYLED*/
-	    /[-]+[ ]*BEGIN ([A-Z0-9][A-Za-z0-9]+ )?(PUBLIC|PRIVATE) KEY[ ]*[-]+/);
-	assert.ok(m, 'invalid PEM header');
-
-	var m2 = lines[lines.length - 1].match(/*JSSTYLED*/
-	    /[-]+[ ]*END ([A-Z0-9][A-Za-z0-9]+ )?(PUBLIC|PRIVATE) KEY[ ]*[-]+/);
-	assert.ok(m2, 'invalid PEM footer');
-
-	/* Begin and end banners must match key type */
-	assert.equal(m[2], m2[2]);
-	var type = m[2].toLowerCase();
-
-	var alg;
-	if (m[1]) {
-		/* They also must match algorithms, if given */
-		assert.equal(m[1], m2[1], 'PEM header and footer mismatch');
-		alg = m[1].trim();
-	}
-
-	var headers = {};
-	while (true) {
-		lines = lines.slice(1);
-		m = lines[0].match(/*JSSTYLED*/
-		    /^([A-Za-z0-9-]+): (.+)$/);
-		if (!m)
-			break;
-		headers[m[1].toLowerCase()] = m[2];
-	}
-
-	var cipher, key, iv;
-	if (headers['proc-type']) {
-		var parts = headers['proc-type'].split(',');
-		if (parts[0] === '4' && parts[1] === 'ENCRYPTED') {
-			if (typeof (options.passphrase) === 'string') {
-				options.passphrase = Buffer.from(
-				    options.passphrase, 'utf-8');
-			}
-			if (!Buffer.isBuffer(options.passphrase)) {
-				throw (new errors.KeyEncryptedError(
-				    options.filename, 'PEM'));
-			} else {
-				parts = headers['dek-info'].split(',');
-				assert.ok(parts.length === 2);
-				cipher = parts[0].toLowerCase();
-				iv = Buffer.from(parts[1], 'hex');
-				key = utils.opensslKeyDeriv(cipher, iv,
-				    options.passphrase, 1).key;
-			}
-		}
-	}
-
-	/* Chop off the first and last lines */
-	lines = lines.slice(0, -1).join('');
-	buf = Buffer.from(lines, 'base64');
-
-	if (cipher && key && iv) {
-		var cipherStream = crypto.createDecipheriv(cipher, key, iv);
-		var chunk, chunks = [];
-		cipherStream.once('error', function (e) {
-			if (e.toString().indexOf('bad decrypt') !== -1) {
-				throw (new Error('Incorrect passphrase ' +
-				    'supplied, could not decrypt key'));
-			}
-			throw (e);
-		});
-		cipherStream.write(buf);
-		cipherStream.end();
-		while ((chunk = cipherStream.read()) !== null)
-			chunks.push(chunk);
-		buf = Buffer.concat(chunks);
-	}
-
-	/* The new OpenSSH internal format abuses PEM headers */
-	if (alg && alg.toLowerCase() === 'openssh')
-		return (sshpriv.readSSHPrivate(type, buf, options));
-	if (alg && alg.toLowerCase() === 'ssh2')
-		return (rfc4253.readType(type, buf, options));
-
-	var der = new asn1.BerReader(buf);
-	der.originalInput = input;
-
-	/*
-	 * All of the PEM file types start with a sequence tag, so chop it
-	 * off here
-	 */
-	der.readSequence();
-
-	/* PKCS#1 type keys name an algorithm in the banner explicitly */
-	if (alg) {
-		if (forceType)
-			assert.strictEqual(forceType, 'pkcs1');
-		return (pkcs1.readPkcs1(alg, type, der));
-	} else {
-		if (forceType)
-			assert.strictEqual(forceType, 'pkcs8');
-		return (pkcs8.readPkcs8(alg, type, der));
-	}
-}
-
-function write(key, options, type) {
-	assert.object(key);
-
-	var alg = {
-	    'ecdsa': 'EC',
-	    'rsa': 'RSA',
-	    'dsa': 'DSA',
-	    'ed25519': 'EdDSA'
-	}[key.type];
-	var header;
-
-	var der = new asn1.BerWriter();
-
-	if (PrivateKey.isPrivateKey(key)) {
-		if (type && type === 'pkcs8') {
-			header = 'PRIVATE KEY';
-			pkcs8.writePkcs8(der, key);
-		} else {
-			if (type)
-				assert.strictEqual(type, 'pkcs1');
-			header = alg + ' PRIVATE KEY';
-			pkcs1.writePkcs1(der, key);
-		}
-
-	} else if (Key.isKey(key)) {
-		if (type && type === 'pkcs1') {
-			header = alg + ' PUBLIC KEY';
-			pkcs1.writePkcs1(der, key);
-		} else {
-			if (type)
-				assert.strictEqual(type, 'pkcs8');
-			header = 'PUBLIC KEY';
-			pkcs8.writePkcs8(der, key);
-		}
-
-	} else {
-		throw (new Error('key is not a Key or PrivateKey'));
-	}
-
-	var tmp = der.buffer.toString('base64');
-	var len = tmp.length + (tmp.length / 64) +
-	    18 + 16 + header.length*2 + 10;
-	var buf = Buffer.alloc(len);
-	var o = 0;
-	o += buf.write('-----BEGIN ' + header + '-----\n', o);
-	for (var i = 0; i < tmp.length; ) {
-		var limit = i + 64;
-		if (limit > tmp.length)
-			limit = tmp.length;
-		o += buf.write(tmp.slice(i, limit), o);
-		buf[o++] = 10;
-		i = limit;
-	}
-	o += buf.write('-----END ' + header + '-----\n', o);
-
-	return (buf.slice(0, o));
-}
-
-
-/***/ }),
-/* 87 */
-/***/ (function(module, exports) {
-
-module.exports = require("http");
-
-/***/ }),
-/* 88 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.SCOPE_SEPARATOR = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _npmResolver;
-
-function _load_npmResolver() {
-  return _npmResolver = _interopRequireDefault(__webpack_require__(217));
-}
-
-var _envReplace;
-
-function _load_envReplace() {
-  return _envReplace = _interopRequireDefault(__webpack_require__(577));
-}
-
-var _baseRegistry;
-
-function _load_baseRegistry() {
-  return _baseRegistry = _interopRequireDefault(__webpack_require__(558));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _path;
-
-function _load_path() {
-  return _path = __webpack_require__(377);
-}
-
-var _normalizeUrl;
-
-function _load_normalizeUrl() {
-  return _normalizeUrl = _interopRequireDefault(__webpack_require__(402));
-}
-
-var _userHomeDir;
-
-function _load_userHomeDir() {
-  return _userHomeDir = _interopRequireDefault(__webpack_require__(67));
-}
-
-var _userHomeDir2;
-
-function _load_userHomeDir2() {
-  return _userHomeDir2 = __webpack_require__(67);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _login;
-
-function _load_login() {
-  return _login = __webpack_require__(107);
-}
-
-var _path2;
-
-function _load_path2() {
-  return _path2 = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _url;
-
-function _load_url() {
-  return _url = _interopRequireDefault(__webpack_require__(24));
-}
-
-var _ini;
-
-function _load_ini() {
-  return _ini = _interopRequireDefault(__webpack_require__(684));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const DEFAULT_REGISTRY = 'https://registry.npmjs.org/';
-const REGEX_REGISTRY_ENFORCED_HTTPS = /^https?:\/\/([^\/]+\.)?(yarnpkg\.com|npmjs\.(org|com))(\/|$)/;
-const REGEX_REGISTRY_HTTP_PROTOCOL = /^https?:/i;
-const REGEX_REGISTRY_PREFIX = /^(https?:)?\/\//i;
-const REGEX_REGISTRY_SUFFIX = /registry\/?$/;
-
-const SCOPE_SEPARATOR = exports.SCOPE_SEPARATOR = '%2f';
-// All scoped package names are of the format `@scope%2fpkg` from the use of NpmRegistry.escapeName
-// `(?:^|\/)` Match either the start of the string or a `/` but don't capture
-// `[^\/?]+?` Match any character that is not '/' or '?' and capture, up until the first occurrence of:
-// `(?=%2f|\/)` Match SCOPE_SEPARATOR, the escaped '/', or a raw `/` and don't capture
-// The reason for matching a plain `/` is NPM registry being inconsistent about escaping `/` in
-// scoped package names: when you're fetching a tarball, it is not escaped, when you want info
-// about the package, it is escaped.
-const SCOPED_PKG_REGEXP = /(?:^|\/)(@[^\/?]+?)(?=%2f|\/)/;
-
-// TODO: Use the method from src/cli/commands/global.js for this instead
-function getGlobalPrefix() {
-  if (process.env.PREFIX) {
-    return process.env.PREFIX;
-  } else if (process.platform === 'win32') {
-    // c:\node\node.exe --> prefix=c:\node\
-    return (_path2 || _load_path2()).default.dirname(process.execPath);
-  } else {
-    // /usr/local/bin/node --> prefix=/usr/local
-    let prefix = (_path2 || _load_path2()).default.dirname((_path2 || _load_path2()).default.dirname(process.execPath));
-
-    // destdir only is respected on Unix
-    if (process.env.DESTDIR) {
-      prefix = (_path2 || _load_path2()).default.join(process.env.DESTDIR, prefix);
-    }
-
-    return prefix;
-  }
-}
-
-const PATH_CONFIG_OPTIONS = new Set(['cache', 'cafile', 'prefix', 'userconfig']);
-
-function isPathConfigOption(key) {
-  return PATH_CONFIG_OPTIONS.has(key);
-}
-
-function normalizePath(val) {
-  if (val === undefined) {
-    return undefined;
-  }
-
-  if (typeof val !== 'string') {
-    val = String(val);
-  }
-
-  return (0, (_path || _load_path()).resolveWithHome)(val);
-}
-
-function urlParts(requestUrl) {
-  const normalizedUrl = (0, (_normalizeUrl || _load_normalizeUrl()).default)(requestUrl);
-  const parsed = (_url || _load_url()).default.parse(normalizedUrl);
-  const host = parsed.host || '';
-  const path = parsed.path || '';
-  return { host, path };
-}
-
-class NpmRegistry extends (_baseRegistry || _load_baseRegistry()).default {
-  constructor(cwd, registries, requestManager, reporter, enableDefaultRc, extraneousRcFiles) {
-    super(cwd, registries, requestManager, reporter, enableDefaultRc, extraneousRcFiles);
-    this.folder = 'node_modules';
-  }
-
-  static escapeName(name) {
-    // scoped packages contain slashes and the npm registry expects them to be escaped
-    return name.replace('/', SCOPE_SEPARATOR);
-  }
-
-  isScopedPackage(packageIdent) {
-    return SCOPED_PKG_REGEXP.test(packageIdent);
-  }
-
-  getRequestUrl(registry, pathname) {
-    let resolved = pathname;
-
-    if (!REGEX_REGISTRY_PREFIX.test(pathname)) {
-      resolved = (_url || _load_url()).default.resolve((0, (_misc || _load_misc()).addSuffix)(registry, '/'), pathname);
-    }
-
-    if (REGEX_REGISTRY_ENFORCED_HTTPS.test(resolved)) {
-      resolved = resolved.replace(/^http:\/\//, 'https://');
-    }
-
-    return resolved;
-  }
-
-  isRequestToRegistry(requestUrl, registryUrl) {
-    const request = urlParts(requestUrl);
-    const registry = urlParts(registryUrl);
-    const customHostSuffix = this.getRegistryOrGlobalOption(registryUrl, 'custom-host-suffix');
-
-    const requestToRegistryHost = request.host === registry.host;
-    const requestToYarn = (_constants || _load_constants()).YARN_REGISTRY.includes(request.host) && DEFAULT_REGISTRY.includes(registry.host);
-    const requestToRegistryPath = request.path.startsWith(registry.path);
-    // For some registries, the package path does not prefix with the registry path
-    const customHostSuffixInUse = typeof customHostSuffix === 'string' && request.host.endsWith(customHostSuffix);
-
-    return (requestToRegistryHost || requestToYarn) && (requestToRegistryPath || customHostSuffixInUse);
-  }
-
-  request(pathname, opts = {}, packageName) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // packageName needs to be escaped when if it is passed
-      const packageIdent = packageName && NpmRegistry.escapeName(packageName) || pathname;
-      const registry = opts.registry || _this.getRegistry(packageIdent);
-      const requestUrl = _this.getRequestUrl(registry, pathname);
-
-      const alwaysAuth = _this.getRegistryOrGlobalOption(registry, 'always-auth');
-
-      const headers = (0, (_extends2 || _load_extends()).default)({
-        Accept:
-        // This is to use less bandwidth unless we really need to get the full response.
-        // See https://github.com/npm/npm-registry-client#requests
-        opts.unfiltered ? 'application/json' : 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*'
-      }, opts.headers);
-
-      const isToRegistry = _this.isRequestToRegistry(requestUrl, registry) || _this.requestNeedsAuth(requestUrl);
-
-      // this.token must be checked to account for publish requests on non-scoped packages
-      if (_this.token || isToRegistry && (alwaysAuth || _this.isScopedPackage(packageIdent))) {
-        const authorization = _this.getAuth(packageIdent);
-        if (authorization) {
-          headers.authorization = authorization;
-        }
-      }
-
-      if (_this.otp) {
-        headers['npm-otp'] = _this.otp;
-      }
-
-      try {
-        return yield _this.requestManager.request({
-          url: requestUrl,
-          method: opts.method,
-          body: opts.body,
-          auth: opts.auth,
-          headers,
-          json: !opts.buffer,
-          buffer: opts.buffer,
-          process: opts.process,
-          gzip: true
-        });
-      } catch (error) {
-        if (error instanceof (_errors || _load_errors()).OneTimePasswordError) {
-          if (_this.otp) {
-            throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('incorrectOneTimePassword'));
-          }
-
-          _this.reporter.info(_this.reporter.lang('twoFactorAuthenticationEnabled'));
-          _this.otp = yield (0, (_login || _load_login()).getOneTimePassword)(_this.reporter);
-
-          _this.requestManager.clearCache();
-
-          return _this.request(pathname, opts, packageName);
-        } else {
-          throw error;
-        }
-      }
-    })();
-  }
-
-  requestNeedsAuth(requestUrl) {
-    const config = this.config;
-    const requestParts = urlParts(requestUrl);
-    return !!Object.keys(config).find(option => {
-      const parts = option.split(':');
-      if (parts.length === 2 && parts[1] === '_authToken' || parts[1] === '_password') {
-        const registryParts = urlParts(parts[0]);
-        if (requestParts.host === registryParts.host && requestParts.path.startsWith(registryParts.path)) {
-          return true;
-        }
-      }
-      return false;
-    });
-  }
-
-  checkOutdated(config, name, range) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const escapedName = NpmRegistry.escapeName(name);
-      const req = yield _this2.request(escapedName, { unfiltered: true });
-      if (!req) {
-        throw new Error(`couldn't find ${name}`);
-      }
-
-      // By default use top level 'repository' and 'homepage' values
-      let repository = req.repository,
-          homepage = req.homepage;
-
-      const wantedPkg = yield (_npmResolver || _load_npmResolver()).default.findVersionInRegistryResponse(config, escapedName, range, req);
-
-      // But some local repositories like Verdaccio do not return 'repository' nor 'homepage'
-      // in top level data structure, so we fallback to wanted package manifest
-      if (!repository && !homepage) {
-        repository = wantedPkg.repository;
-        homepage = wantedPkg.homepage;
-      }
-
-      let latest = req['dist-tags'].latest;
-      // In certain cases, registries do not return a 'latest' tag.
-      if (!latest) {
-        latest = wantedPkg.version;
-      }
-
-      const url = homepage || repository && repository.url || '';
-
-      return {
-        latest,
-        wanted: wantedPkg.version,
-        url
-      };
-    })();
-  }
-
-  getPossibleConfigLocations(filename, reporter) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let possibles = [];
-
-      for (var _iterator = _this3.extraneousRcFiles.slice().reverse(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const rcFile = _ref;
-
-        possibles.push([false, (_path2 || _load_path2()).default.resolve(process.cwd(), rcFile)]);
-      }
-
-      if (_this3.enableDefaultRc) {
-        // npmrc --> ./.npmrc, ~/.npmrc, ${prefix}/etc/npmrc
-        const localfile = '.' + filename;
-        possibles = possibles.concat([[false, (_path2 || _load_path2()).default.join(_this3.cwd, localfile)], [true, _this3.config.userconfig || (_path2 || _load_path2()).default.join((_userHomeDir || _load_userHomeDir()).default, localfile)], [false, (_path2 || _load_path2()).default.join(getGlobalPrefix(), 'etc', filename)]]);
-
-        // When home directory for global install is different from where $HOME/npmrc is stored,
-        // E.g. /usr/local/share vs /root on linux machines, check the additional location
-        if ((_userHomeDir2 || _load_userHomeDir2()).home !== (_userHomeDir || _load_userHomeDir()).default) {
-          possibles.push([true, (_path2 || _load_path2()).default.join((_userHomeDir2 || _load_userHomeDir2()).home, localfile)]);
-        }
-
-        // npmrc --> ../.npmrc, ../../.npmrc, etc.
-        const foldersFromRootToCwd = (0, (_path || _load_path()).getPosixPath)(_this3.cwd).split('/');
-        while (foldersFromRootToCwd.length > 1) {
-          possibles.push([false, (_path2 || _load_path2()).default.join(foldersFromRootToCwd.join((_path2 || _load_path2()).default.sep), localfile)]);
-          foldersFromRootToCwd.pop();
-        }
-      }
-
-      const actuals = [];
-      for (var _iterator2 = possibles, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const _ref2 = _ref3;
-        const isHome = _ref2[0];
-        const loc = _ref2[1];
-
-        reporter.verbose(reporter.lang('configPossibleFile', loc));
-        if (yield (_fs || _load_fs()).exists(loc)) {
-          reporter.verbose(reporter.lang('configFileFound', loc));
-          actuals.push([isHome, loc, yield (_fs || _load_fs()).readFile(loc)]);
-        }
-      }
-
-      return actuals;
-    })();
-  }
-
-  static getConfigEnv(env = process.env) {
-    // To match NPM's behavior, HOME is always the user's home directory.
-    const overrideEnv = {
-      HOME: (_userHomeDir2 || _load_userHomeDir2()).home
-    };
-    return Object.assign({}, env, overrideEnv);
-  }
-
-  static normalizeConfig(config) {
-    const env = NpmRegistry.getConfigEnv();
-    config = (_baseRegistry || _load_baseRegistry()).default.normalizeConfig(config);
-
-    for (const key in config) {
-      config[key] = (0, (_envReplace || _load_envReplace()).default)(config[key], env);
-      if (isPathConfigOption(key)) {
-        config[key] = normalizePath(config[key]);
-      }
-    }
-
-    return config;
-  }
-
-  loadConfig() {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // docs: https://docs.npmjs.com/misc/config
-      _this4.mergeEnv('npm_config_');
-
-      for (var _iterator3 = yield _this4.getPossibleConfigLocations('npmrc', _this4.reporter), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref5;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref5 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref5 = _i3.value;
-        }
-
-        const _ref4 = _ref5;
-        const loc = _ref4[1];
-        const file = _ref4[2];
-
-        const config = NpmRegistry.normalizeConfig((_ini || _load_ini()).default.parse(file));
-
-        // normalize offline mirror path relative to the current npmrc
-        const offlineLoc = config['yarn-offline-mirror'];
-        // don't normalize if we already have a mirror path
-        if (!_this4.config['yarn-offline-mirror'] && offlineLoc) {
-          const mirrorLoc = config['yarn-offline-mirror'] = (_path2 || _load_path2()).default.resolve((_path2 || _load_path2()).default.dirname(loc), offlineLoc);
-          yield (_fs || _load_fs()).mkdirp(mirrorLoc);
-        }
-
-        _this4.config = Object.assign({}, config, _this4.config);
-      }
-    })();
-  }
-
-  getScope(packageIdent) {
-    const match = packageIdent.match(SCOPED_PKG_REGEXP);
-    return match && match[1] || '';
-  }
-
-  getRegistry(packageIdent) {
-    // Try extracting registry from the url, then scoped registry, and default registry
-    if (packageIdent.match(REGEX_REGISTRY_PREFIX)) {
-      const availableRegistries = this.getAvailableRegistries();
-      const registry = availableRegistries.find(registry => packageIdent.startsWith(registry));
-      if (registry) {
-        return String(registry);
-      }
-    }
-
-    var _arr = [this.getScope(packageIdent), ''];
-    for (var _i4 = 0; _i4 < _arr.length; _i4++) {
-      const scope = _arr[_i4];
-      const registry = this.getScopedOption(scope, 'registry') || this.registries.yarn.getScopedOption(scope, 'registry');
-      if (registry) {
-        return String(registry);
-      }
-    }
-
-    return DEFAULT_REGISTRY;
-  }
-
-  getAuthByRegistry(registry) {
-    // Check for bearer token.
-    const authToken = this.getRegistryOrGlobalOption(registry, '_authToken');
-    if (authToken) {
-      return `Bearer ${String(authToken)}`;
-    }
-
-    // Check for basic auth token.
-    const auth = this.getRegistryOrGlobalOption(registry, '_auth');
-    if (auth) {
-      return `Basic ${String(auth)}`;
-    }
-
-    // Check for basic username/password auth.
-    const username = this.getRegistryOrGlobalOption(registry, 'username');
-    const password = this.getRegistryOrGlobalOption(registry, '_password');
-    if (username && password) {
-      const pw = Buffer.from(String(password), 'base64').toString();
-      return 'Basic ' + Buffer.from(String(username) + ':' + pw).toString('base64');
-    }
-
-    return '';
-  }
-
-  getAuth(packageIdent) {
-    if (this.token) {
-      return this.token;
-    }
-
-    const baseRegistry = this.getRegistry(packageIdent);
-    const registries = [baseRegistry];
-
-    // If sending a request to the Yarn registry, we must also send it the auth token for the npm registry
-    if (baseRegistry === (_constants || _load_constants()).YARN_REGISTRY) {
-      registries.push(DEFAULT_REGISTRY);
-    }
-
-    for (var _iterator4 = registries, _isArray4 = Array.isArray(_iterator4), _i5 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref6;
-
-      if (_isArray4) {
-        if (_i5 >= _iterator4.length) break;
-        _ref6 = _iterator4[_i5++];
-      } else {
-        _i5 = _iterator4.next();
-        if (_i5.done) break;
-        _ref6 = _i5.value;
-      }
-
-      const registry = _ref6;
-
-      const auth = this.getAuthByRegistry(registry);
-
-      if (auth) {
-        return auth;
-      }
-    }
-
-    return '';
-  }
-
-  getScopedOption(scope, option) {
-    return this.getOption(scope + (scope ? ':' : '') + option);
-  }
-
-  getRegistryOption(registry, option) {
-    const pre = REGEX_REGISTRY_HTTP_PROTOCOL;
-    const suf = REGEX_REGISTRY_SUFFIX;
-
-    // When registry is used config scope, the trailing '/' is required
-    const reg = (0, (_misc || _load_misc()).addSuffix)(registry, '/');
-
-    // 1st attempt, try to get option for the given registry URL
-    // 2nd attempt, remove the 'https?:' prefix of the registry URL
-    // 3nd attempt, remove the 'registry/?' suffix of the registry URL
-    return this.getScopedOption(reg, option) || pre.test(reg) && this.getRegistryOption(reg.replace(pre, ''), option) || suf.test(reg) && this.getRegistryOption(reg.replace(suf, ''), option);
-  }
-
-  getRegistryOrGlobalOption(registry, option) {
-    return this.getRegistryOption(registry, option) || this.getOption(option);
-  }
-}
-exports.default = NpmRegistry;
-NpmRegistry.filename = 'package.json';
-
-/***/ }),
-/* 89 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _baseResolver;
-
-function _load_baseResolver() {
-  return _baseResolver = _interopRequireDefault(__webpack_require__(123));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class ExoticResolver extends (_baseResolver || _load_baseResolver()).default {
-
-  static isVersion(pattern) {
-    const proto = this.protocol;
-    if (proto) {
-      return pattern.startsWith(`${proto}:`);
-    } else {
-      throw new Error('No protocol specified');
-    }
-  }
-}
-exports.default = ExoticResolver;
-
-/***/ }),
-/* 90 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-const semver = __webpack_require__(22);
-
-class WorkspaceLayout {
-  constructor(workspaces, config) {
-    this.workspaces = workspaces;
-    this.config = config;
-  }
-
-  getWorkspaceManifest(key) {
-    return this.workspaces[key];
-  }
-
-  getManifestByPattern(pattern) {
-    var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(pattern);
-
-    const name = _normalizePattern.name,
-          range = _normalizePattern.range;
-
-    const workspace = this.getWorkspaceManifest(name);
-    if (!workspace || !semver.satisfies(workspace.manifest.version, range, this.config.looseSemver)) {
-      return null;
-    }
-    return workspace;
-  }
-}
-exports.default = WorkspaceLayout;
-
-/***/ }),
-/* 91 */
-/***/ (function(module, exports) {
-
-// 7.2.1 RequireObjectCoercible(argument)
-module.exports = function (it) {
-  if (it == undefined) throw TypeError("Can't call method on  " + it);
-  return it;
-};
-
-
-/***/ }),
-/* 92 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var isObject = __webpack_require__(52);
-var document = __webpack_require__(17).document;
-// typeof document.createElement is 'object' in old IE
-var is = isObject(document) && isObject(document.createElement);
-module.exports = function (it) {
-  return is ? document.createElement(it) : {};
-};
-
-
-/***/ }),
-/* 93 */
-/***/ (function(module, exports) {
-
-module.exports = true;
-
-
-/***/ }),
-/* 94 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-// 25.4.1.5 NewPromiseCapability(C)
-var aFunction = __webpack_require__(68);
-
-function PromiseCapability(C) {
-  var resolve, reject;
-  this.promise = new C(function ($$resolve, $$reject) {
-    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
-    resolve = $$resolve;
-    reject = $$reject;
-  });
-  this.resolve = aFunction(resolve);
-  this.reject = aFunction(reject);
-}
-
-module.exports.f = function (C) {
-  return new PromiseCapability(C);
-};
-
-
-/***/ }),
-/* 95 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var def = __webpack_require__(72).f;
-var has = __webpack_require__(71);
-var TAG = __webpack_require__(20)('toStringTag');
-
-module.exports = function (it, tag, stat) {
-  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
-};
-
-
-/***/ }),
-/* 96 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var shared = __webpack_require__(133)('keys');
-var uid = __webpack_require__(137);
-module.exports = function (key) {
-  return shared[key] || (shared[key] = uid(key));
-};
-
-
-/***/ }),
-/* 97 */
-/***/ (function(module, exports) {
-
-// 7.1.4 ToInteger
-var ceil = Math.ceil;
-var floor = Math.floor;
-module.exports = function (it) {
-  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
-};
-
-
-/***/ }),
-/* 98 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// to indexed object, toObject with fallback for non-array-like ES3 strings
-var IObject = __webpack_require__(170);
-var defined = __webpack_require__(91);
-module.exports = function (it) {
-  return IObject(defined(it));
-};
-
-
-/***/ }),
-/* 99 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Approach:
-//
-// 1. Get the minimatch set
-// 2. For each pattern in the set, PROCESS(pattern, false)
-// 3. Store matches per-set, then uniq them
-//
-// PROCESS(pattern, inGlobStar)
-// Get the first [n] items from pattern that are all strings
-// Join these together.  This is PREFIX.
-//   If there is no more remaining, then stat(PREFIX) and
-//   add to matches if it succeeds.  END.
-//
-// If inGlobStar and PREFIX is symlink and points to dir
-//   set ENTRIES = []
-// else readdir(PREFIX) as ENTRIES
-//   If fail, END
-//
-// with ENTRIES
-//   If pattern[n] is GLOBSTAR
-//     // handle the case where the globstar match is empty
-//     // by pruning it out, and testing the resulting pattern
-//     PROCESS(pattern[0..n] + pattern[n+1 .. $], false)
-//     // handle other cases.
-//     for ENTRY in ENTRIES (not dotfiles)
-//       // attach globstar + tail onto the entry
-//       // Mark that this entry is a globstar match
-//       PROCESS(pattern[0..n] + ENTRY + pattern[n .. $], true)
-//
-//   else // not globstar
-//     for ENTRY in ENTRIES (not dotfiles, unless pattern[n] is dot)
-//       Test ENTRY against pattern[n]
-//       If fails, continue
-//       If passes, PROCESS(pattern[0..n] + item + pattern[n+1 .. $])
-//
-// Caveat:
-//   Cache all stats and readdirs results to minimize syscall.  Since all
-//   we ever care about is existence and directory-ness, we can just keep
-//   `true` for files, and [children,...] for directories, or `false` for
-//   things that don't exist.
-
-module.exports = glob
-
-var fs = __webpack_require__(5)
-var rp = __webpack_require__(140)
-var minimatch = __webpack_require__(82)
-var Minimatch = minimatch.Minimatch
-var inherits = __webpack_require__(61)
-var EE = __webpack_require__(77).EventEmitter
-var path = __webpack_require__(0)
-var assert = __webpack_require__(28)
-var isAbsolute = __webpack_require__(101)
-var globSync = __webpack_require__(272)
-var common = __webpack_require__(141)
-var alphasort = common.alphasort
-var alphasorti = common.alphasorti
-var setopts = common.setopts
-var ownProp = common.ownProp
-var inflight = __webpack_require__(274)
-var util = __webpack_require__(3)
-var childrenIgnored = common.childrenIgnored
-var isIgnored = common.isIgnored
-
-var once = __webpack_require__(83)
-
-function glob (pattern, options, cb) {
-  if (typeof options === 'function') cb = options, options = {}
-  if (!options) options = {}
-
-  if (options.sync) {
-    if (cb)
-      throw new TypeError('callback provided to sync glob')
-    return globSync(pattern, options)
-  }
-
-  return new Glob(pattern, options, cb)
-}
-
-glob.sync = globSync
-var GlobSync = glob.GlobSync = globSync.GlobSync
-
-// old api surface
-glob.glob = glob
-
-function extend (origin, add) {
-  if (add === null || typeof add !== 'object') {
-    return origin
-  }
-
-  var keys = Object.keys(add)
-  var i = keys.length
-  while (i--) {
-    origin[keys[i]] = add[keys[i]]
-  }
-  return origin
-}
-
-glob.hasMagic = function (pattern, options_) {
-  var options = extend({}, options_)
-  options.noprocess = true
-
-  var g = new Glob(pattern, options)
-  var set = g.minimatch.set
-
-  if (!pattern)
-    return false
-
-  if (set.length > 1)
-    return true
-
-  for (var j = 0; j < set[0].length; j++) {
-    if (typeof set[0][j] !== 'string')
-      return true
-  }
-
-  return false
-}
-
-glob.Glob = Glob
-inherits(Glob, EE)
-function Glob (pattern, options, cb) {
-  if (typeof options === 'function') {
-    cb = options
-    options = null
-  }
-
-  if (options && options.sync) {
-    if (cb)
-      throw new TypeError('callback provided to sync glob')
-    return new GlobSync(pattern, options)
-  }
-
-  if (!(this instanceof Glob))
-    return new Glob(pattern, options, cb)
-
-  setopts(this, pattern, options)
-  this._didRealPath = false
-
-  // process each pattern in the minimatch set
-  var n = this.minimatch.set.length
-
-  // The matches are stored as {<filename>: true,...} so that
-  // duplicates are automagically pruned.
-  // Later, we do an Object.keys() on these.
-  // Keep them as a list so we can fill in when nonull is set.
-  this.matches = new Array(n)
-
-  if (typeof cb === 'function') {
-    cb = once(cb)
-    this.on('error', cb)
-    this.on('end', function (matches) {
-      cb(null, matches)
-    })
-  }
-
-  var self = this
-  this._processing = 0
-
-  this._emitQueue = []
-  this._processQueue = []
-  this.paused = false
-
-  if (this.noprocess)
-    return this
-
-  if (n === 0)
-    return done()
-
-  var sync = true
-  for (var i = 0; i < n; i ++) {
-    this._process(this.minimatch.set[i], i, false, done)
-  }
-  sync = false
-
-  function done () {
-    --self._processing
-    if (self._processing <= 0) {
-      if (sync) {
-        process.nextTick(function () {
-          self._finish()
-        })
-      } else {
-        self._finish()
-      }
-    }
-  }
-}
-
-Glob.prototype._finish = function () {
-  assert(this instanceof Glob)
-  if (this.aborted)
-    return
-
-  if (this.realpath && !this._didRealpath)
-    return this._realpath()
-
-  common.finish(this)
-  this.emit('end', this.found)
-}
-
-Glob.prototype._realpath = function () {
-  if (this._didRealpath)
-    return
-
-  this._didRealpath = true
-
-  var n = this.matches.length
-  if (n === 0)
-    return this._finish()
-
-  var self = this
-  for (var i = 0; i < this.matches.length; i++)
-    this._realpathSet(i, next)
-
-  function next () {
-    if (--n === 0)
-      self._finish()
-  }
-}
-
-Glob.prototype._realpathSet = function (index, cb) {
-  var matchset = this.matches[index]
-  if (!matchset)
-    return cb()
-
-  var found = Object.keys(matchset)
-  var self = this
-  var n = found.length
-
-  if (n === 0)
-    return cb()
-
-  var set = this.matches[index] = Object.create(null)
-  found.forEach(function (p, i) {
-    // If there's a problem with the stat, then it means that
-    // one or more of the links in the realpath couldn't be
-    // resolved.  just return the abs value in that case.
-    p = self._makeAbs(p)
-    rp.realpath(p, self.realpathCache, function (er, real) {
-      if (!er)
-        set[real] = true
-      else if (er.syscall === 'stat')
-        set[p] = true
-      else
-        self.emit('error', er) // srsly wtf right here
-
-      if (--n === 0) {
-        self.matches[index] = set
-        cb()
-      }
-    })
-  })
-}
-
-Glob.prototype._mark = function (p) {
-  return common.mark(this, p)
-}
-
-Glob.prototype._makeAbs = function (f) {
-  return common.makeAbs(this, f)
-}
-
-Glob.prototype.abort = function () {
-  this.aborted = true
-  this.emit('abort')
-}
-
-Glob.prototype.pause = function () {
-  if (!this.paused) {
-    this.paused = true
-    this.emit('pause')
-  }
-}
-
-Glob.prototype.resume = function () {
-  if (this.paused) {
-    this.emit('resume')
-    this.paused = false
-    if (this._emitQueue.length) {
-      var eq = this._emitQueue.slice(0)
-      this._emitQueue.length = 0
-      for (var i = 0; i < eq.length; i ++) {
-        var e = eq[i]
-        this._emitMatch(e[0], e[1])
-      }
-    }
-    if (this._processQueue.length) {
-      var pq = this._processQueue.slice(0)
-      this._processQueue.length = 0
-      for (var i = 0; i < pq.length; i ++) {
-        var p = pq[i]
-        this._processing--
-        this._process(p[0], p[1], p[2], p[3])
-      }
-    }
-  }
-}
-
-Glob.prototype._process = function (pattern, index, inGlobStar, cb) {
-  assert(this instanceof Glob)
-  assert(typeof cb === 'function')
-
-  if (this.aborted)
-    return
-
-  this._processing++
-  if (this.paused) {
-    this._processQueue.push([pattern, index, inGlobStar, cb])
-    return
-  }
-
-  //console.error('PROCESS %d', this._processing, pattern)
-
-  // Get the first [n] parts of pattern that are all strings.
-  var n = 0
-  while (typeof pattern[n] === 'string') {
-    n ++
-  }
-  // now n is the index of the first one that is *not* a string.
-
-  // see if there's anything else
-  var prefix
-  switch (n) {
-    // if not, then this is rather simple
-    case pattern.length:
-      this._processSimple(pattern.join('/'), index, cb)
-      return
-
-    case 0:
-      // pattern *starts* with some non-trivial item.
-      // going to readdir(cwd), but not include the prefix in matches.
-      prefix = null
-      break
-
-    default:
-      // pattern has some string bits in the front.
-      // whatever it starts with, whether that's 'absolute' like /foo/bar,
-      // or 'relative' like '../baz'
-      prefix = pattern.slice(0, n).join('/')
-      break
-  }
-
-  var remain = pattern.slice(n)
-
-  // get the list of entries.
-  var read
-  if (prefix === null)
-    read = '.'
-  else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
-    if (!prefix || !isAbsolute(prefix))
-      prefix = '/' + prefix
-    read = prefix
-  } else
-    read = prefix
-
-  var abs = this._makeAbs(read)
-
-  //if ignored, skip _processing
-  if (childrenIgnored(this, read))
-    return cb()
-
-  var isGlobStar = remain[0] === minimatch.GLOBSTAR
-  if (isGlobStar)
-    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar, cb)
-  else
-    this._processReaddir(prefix, read, abs, remain, index, inGlobStar, cb)
-}
-
-Glob.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar, cb) {
-  var self = this
-  this._readdir(abs, inGlobStar, function (er, entries) {
-    return self._processReaddir2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
-  })
-}
-
-Glob.prototype._processReaddir2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
-
-  // if the abs isn't a dir, then nothing can match!
-  if (!entries)
-    return cb()
-
-  // It will only match dot entries if it starts with a dot, or if
-  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
-  var pn = remain[0]
-  var negate = !!this.minimatch.negate
-  var rawGlob = pn._glob
-  var dotOk = this.dot || rawGlob.charAt(0) === '.'
-
-  var matchedEntries = []
-  for (var i = 0; i < entries.length; i++) {
-    var e = entries[i]
-    if (e.charAt(0) !== '.' || dotOk) {
-      var m
-      if (negate && !prefix) {
-        m = !e.match(pn)
-      } else {
-        m = e.match(pn)
-      }
-      if (m)
-        matchedEntries.push(e)
-    }
-  }
-
-  //console.error('prd2', prefix, entries, remain[0]._glob, matchedEntries)
-
-  var len = matchedEntries.length
-  // If there are no matched entries, then nothing matches.
-  if (len === 0)
-    return cb()
-
-  // if this is the last remaining pattern bit, then no need for
-  // an additional stat *unless* the user has specified mark or
-  // stat explicitly.  We know they exist, since readdir returned
-  // them.
-
-  if (remain.length === 1 && !this.mark && !this.stat) {
-    if (!this.matches[index])
-      this.matches[index] = Object.create(null)
-
-    for (var i = 0; i < len; i ++) {
-      var e = matchedEntries[i]
-      if (prefix) {
-        if (prefix !== '/')
-          e = prefix + '/' + e
-        else
-          e = prefix + e
-      }
-
-      if (e.charAt(0) === '/' && !this.nomount) {
-        e = path.join(this.root, e)
-      }
-      this._emitMatch(index, e)
-    }
-    // This was the last one, and no stats were needed
-    return cb()
-  }
-
-  // now test all matched entries as stand-ins for that part
-  // of the pattern.
-  remain.shift()
-  for (var i = 0; i < len; i ++) {
-    var e = matchedEntries[i]
-    var newPattern
-    if (prefix) {
-      if (prefix !== '/')
-        e = prefix + '/' + e
-      else
-        e = prefix + e
-    }
-    this._process([e].concat(remain), index, inGlobStar, cb)
-  }
-  cb()
-}
-
-Glob.prototype._emitMatch = function (index, e) {
-  if (this.aborted)
-    return
-
-  if (isIgnored(this, e))
-    return
-
-  if (this.paused) {
-    this._emitQueue.push([index, e])
-    return
-  }
-
-  var abs = isAbsolute(e) ? e : this._makeAbs(e)
-
-  if (this.mark)
-    e = this._mark(e)
-
-  if (this.absolute)
-    e = abs
-
-  if (this.matches[index][e])
-    return
-
-  if (this.nodir) {
-    var c = this.cache[abs]
-    if (c === 'DIR' || Array.isArray(c))
-      return
-  }
-
-  this.matches[index][e] = true
-
-  var st = this.statCache[abs]
-  if (st)
-    this.emit('stat', e, st)
-
-  this.emit('match', e)
-}
-
-Glob.prototype._readdirInGlobStar = function (abs, cb) {
-  if (this.aborted)
-    return
-
-  // follow all symlinked directories forever
-  // just proceed as if this is a non-globstar situation
-  if (this.follow)
-    return this._readdir(abs, false, cb)
-
-  var lstatkey = 'lstat\0' + abs
-  var self = this
-  var lstatcb = inflight(lstatkey, lstatcb_)
-
-  if (lstatcb)
-    fs.lstat(abs, lstatcb)
-
-  function lstatcb_ (er, lstat) {
-    if (er && er.code === 'ENOENT')
-      return cb()
-
-    var isSym = lstat && lstat.isSymbolicLink()
-    self.symlinks[abs] = isSym
-
-    // If it's not a symlink or a dir, then it's definitely a regular file.
-    // don't bother doing a readdir in that case.
-    if (!isSym && lstat && !lstat.isDirectory()) {
-      self.cache[abs] = 'FILE'
-      cb()
-    } else
-      self._readdir(abs, false, cb)
-  }
-}
-
-Glob.prototype._readdir = function (abs, inGlobStar, cb) {
-  if (this.aborted)
-    return
-
-  cb = inflight('readdir\0'+abs+'\0'+inGlobStar, cb)
-  if (!cb)
-    return
-
-  //console.error('RD %j %j', +inGlobStar, abs)
-  if (inGlobStar && !ownProp(this.symlinks, abs))
-    return this._readdirInGlobStar(abs, cb)
-
-  if (ownProp(this.cache, abs)) {
-    var c = this.cache[abs]
-    if (!c || c === 'FILE')
-      return cb()
-
-    if (Array.isArray(c))
-      return cb(null, c)
-  }
-
-  var self = this
-  fs.readdir(abs, readdirCb(this, abs, cb))
-}
-
-function readdirCb (self, abs, cb) {
-  return function (er, entries) {
-    if (er)
-      self._readdirError(abs, er, cb)
-    else
-      self._readdirEntries(abs, entries, cb)
-  }
-}
-
-Glob.prototype._readdirEntries = function (abs, entries, cb) {
-  if (this.aborted)
-    return
-
-  // if we haven't asked to stat everything, then just
-  // assume that everything in there exists, so we can avoid
-  // having to stat it a second time.
-  if (!this.mark && !this.stat) {
-    for (var i = 0; i < entries.length; i ++) {
-      var e = entries[i]
-      if (abs === '/')
-        e = abs + e
-      else
-        e = abs + '/' + e
-      this.cache[e] = true
-    }
-  }
-
-  this.cache[abs] = entries
-  return cb(null, entries)
-}
-
-Glob.prototype._readdirError = function (f, er, cb) {
-  if (this.aborted)
-    return
-
-  // handle errors, and cache the information
-  switch (er.code) {
-    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
-    case 'ENOTDIR': // totally normal. means it *does* exist.
-      var abs = this._makeAbs(f)
-      this.cache[abs] = 'FILE'
-      if (abs === this.cwdAbs) {
-        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
-        error.path = this.cwd
-        error.code = er.code
-        this.emit('error', error)
-        this.abort()
-      }
-      break
-
-    case 'ENOENT': // not terribly unusual
-    case 'ELOOP':
-    case 'ENAMETOOLONG':
-    case 'UNKNOWN':
-      this.cache[this._makeAbs(f)] = false
-      break
-
-    default: // some unusual error.  Treat as failure.
-      this.cache[this._makeAbs(f)] = false
-      if (this.strict) {
-        this.emit('error', er)
-        // If the error is handled, then we abort
-        // if not, we threw out of here
-        this.abort()
-      }
-      if (!this.silent)
-        console.error('glob error', er)
-      break
-  }
-
-  return cb()
-}
-
-Glob.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar, cb) {
-  var self = this
-  this._readdir(abs, inGlobStar, function (er, entries) {
-    self._processGlobStar2(prefix, read, abs, remain, index, inGlobStar, entries, cb)
-  })
-}
-
-
-Glob.prototype._processGlobStar2 = function (prefix, read, abs, remain, index, inGlobStar, entries, cb) {
-  //console.error('pgs2', prefix, remain[0], entries)
-
-  // no entries means not a dir, so it can never have matches
-  // foo.txt/** doesn't match foo.txt
-  if (!entries)
-    return cb()
-
-  // test without the globstar, and with every child both below
-  // and replacing the globstar.
-  var remainWithoutGlobStar = remain.slice(1)
-  var gspref = prefix ? [ prefix ] : []
-  var noGlobStar = gspref.concat(remainWithoutGlobStar)
-
-  // the noGlobStar pattern exits the inGlobStar state
-  this._process(noGlobStar, index, false, cb)
-
-  var isSym = this.symlinks[abs]
-  var len = entries.length
-
-  // If it's a symlink, and we're in a globstar, then stop
-  if (isSym && inGlobStar)
-    return cb()
-
-  for (var i = 0; i < len; i++) {
-    var e = entries[i]
-    if (e.charAt(0) === '.' && !this.dot)
-      continue
-
-    // these two cases enter the inGlobStar state
-    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
-    this._process(instead, index, true, cb)
-
-    var below = gspref.concat(entries[i], remain)
-    this._process(below, index, true, cb)
-  }
-
-  cb()
-}
-
-Glob.prototype._processSimple = function (prefix, index, cb) {
-  // XXX review this.  Shouldn't it be doing the mounting etc
-  // before doing stat?  kinda weird?
-  var self = this
-  this._stat(prefix, function (er, exists) {
-    self._processSimple2(prefix, index, er, exists, cb)
-  })
-}
-Glob.prototype._processSimple2 = function (prefix, index, er, exists, cb) {
-
-  //console.error('ps2', prefix, exists)
-
-  if (!this.matches[index])
-    this.matches[index] = Object.create(null)
-
-  // If it doesn't exist, then just mark the lack of results
-  if (!exists)
-    return cb()
-
-  if (prefix && isAbsolute(prefix) && !this.nomount) {
-    var trail = /[\/\\]$/.test(prefix)
-    if (prefix.charAt(0) === '/') {
-      prefix = path.join(this.root, prefix)
-    } else {
-      prefix = path.resolve(this.root, prefix)
-      if (trail)
-        prefix += '/'
-    }
-  }
-
-  if (process.platform === 'win32')
-    prefix = prefix.replace(/\\/g, '/')
-
-  // Mark this as a match
-  this._emitMatch(index, prefix)
-  cb()
-}
-
-// Returns either 'DIR', 'FILE', or false
-Glob.prototype._stat = function (f, cb) {
-  var abs = this._makeAbs(f)
-  var needDir = f.slice(-1) === '/'
-
-  if (f.length > this.maxLength)
-    return cb()
-
-  if (!this.stat && ownProp(this.cache, abs)) {
-    var c = this.cache[abs]
-
-    if (Array.isArray(c))
-      c = 'DIR'
-
-    // It exists, but maybe not how we need it
-    if (!needDir || c === 'DIR')
-      return cb(null, c)
-
-    if (needDir && c === 'FILE')
-      return cb()
-
-    // otherwise we have to stat, because maybe c=true
-    // if we know it exists, but not what it is.
-  }
-
-  var exists
-  var stat = this.statCache[abs]
-  if (stat !== undefined) {
-    if (stat === false)
-      return cb(null, stat)
-    else {
-      var type = stat.isDirectory() ? 'DIR' : 'FILE'
-      if (needDir && type === 'FILE')
-        return cb()
-      else
-        return cb(null, type, stat)
-    }
-  }
-
-  var self = this
-  var statcb = inflight('stat\0' + abs, lstatcb_)
-  if (statcb)
-    fs.lstat(abs, statcb)
-
-  function lstatcb_ (er, lstat) {
-    if (lstat && lstat.isSymbolicLink()) {
-      // If it's a symlink, then treat it as the target, unless
-      // the target does not exist, then treat it as a file.
-      return fs.stat(abs, function (er, stat) {
-        if (er)
-          self._stat2(f, abs, null, lstat, cb)
-        else
-          self._stat2(f, abs, er, stat, cb)
-      })
-    } else {
-      self._stat2(f, abs, er, lstat, cb)
-    }
-  }
-}
-
-Glob.prototype._stat2 = function (f, abs, er, stat, cb) {
-  if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
-    this.statCache[abs] = false
-    return cb()
-  }
-
-  var needDir = f.slice(-1) === '/'
-  this.statCache[abs] = stat
-
-  if (abs.slice(-1) === '/' && stat && !stat.isDirectory())
-    return cb(null, false, stat)
-
-  var c = true
-  if (stat)
-    c = stat.isDirectory() ? 'DIR' : 'FILE'
-  this.cache[abs] = this.cache[abs] || c
-
-  if (needDir && c === 'FILE')
-    return cb()
-
-  return cb(null, c, stat)
-}
-
-
-/***/ }),
-/* 100 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Standard YAML's Failsafe schema.
-// http://www.yaml.org/spec/1.2/spec.html#id2802346
-
-
-
-
-
-var Schema = __webpack_require__(44);
-
-
-module.exports = new Schema({
-  explicit: [
-    __webpack_require__(298),
-    __webpack_require__(296),
-    __webpack_require__(291)
-  ]
-});
-
-
-/***/ }),
-/* 101 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function posix(path) {
-	return path.charAt(0) === '/';
-}
-
-function win32(path) {
-	// https://github.com/nodejs/node/blob/b3fcc245fb25539909ef1d5eaa01dbf92e168633/lib/path.js#L56
-	var splitDeviceRe = /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
-	var result = splitDeviceRe.exec(path);
-	var device = result[1] || '';
-	var isUnc = Boolean(device && device.charAt(1) !== ':');
-
-	// UNC paths are always absolute
-	return Boolean(result[2] || isUnc);
-}
-
-module.exports = process.platform === 'win32' ? win32 : posix;
-module.exports.posix = posix;
-module.exports.win32 = win32;
-
-
-/***/ }),
-/* 102 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stream = __webpack_require__(23);
-if (process.env.READABLE_STREAM === 'disable' && Stream) {
-  module.exports = Stream;
-  exports = module.exports = Stream.Readable;
-  exports.Readable = Stream.Readable;
-  exports.Writable = Stream.Writable;
-  exports.Duplex = Stream.Duplex;
-  exports.Transform = Stream.Transform;
-  exports.PassThrough = Stream.PassThrough;
-  exports.Stream = Stream;
-} else {
-  exports = module.exports = __webpack_require__(406);
-  exports.Stream = Stream || exports;
-  exports.Readable = exports;
-  exports.Writable = __webpack_require__(408);
-  exports.Duplex = __webpack_require__(115);
-  exports.Transform = __webpack_require__(407);
-  exports.PassThrough = __webpack_require__(792);
-}
-
-
-/***/ }),
-/* 103 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read.bind(undefined, false, undefined),
-	readType: read.bind(undefined, false),
-	write: write,
-	/* semi-private api, used by sshpk-agent */
-	readPartial: read.bind(undefined, true),
-
-	/* shared with ssh format */
-	readInternal: read,
-	keyTypeToAlg: keyTypeToAlg,
-	algToKeyType: algToKeyType
-};
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var SSHBuffer = __webpack_require__(159);
-
-function algToKeyType(alg) {
-	assert.string(alg);
-	if (alg === 'ssh-dss')
-		return ('dsa');
-	else if (alg === 'ssh-rsa')
-		return ('rsa');
-	else if (alg === 'ssh-ed25519')
-		return ('ed25519');
-	else if (alg === 'ssh-curve25519')
-		return ('curve25519');
-	else if (alg.match(/^ecdsa-sha2-/))
-		return ('ecdsa');
-	else
-		throw (new Error('Unknown algorithm ' + alg));
-}
-
-function keyTypeToAlg(key) {
-	assert.object(key);
-	if (key.type === 'dsa')
-		return ('ssh-dss');
-	else if (key.type === 'rsa')
-		return ('ssh-rsa');
-	else if (key.type === 'ed25519')
-		return ('ssh-ed25519');
-	else if (key.type === 'curve25519')
-		return ('ssh-curve25519');
-	else if (key.type === 'ecdsa')
-		return ('ecdsa-sha2-' + key.part.curve.data.toString());
-	else
-		throw (new Error('Unknown key type ' + key.type));
-}
-
-function read(partial, type, buf, options) {
-	if (typeof (buf) === 'string')
-		buf = Buffer.from(buf);
-	assert.buffer(buf, 'buf');
-
-	var key = {};
-
-	var parts = key.parts = [];
-	var sshbuf = new SSHBuffer({buffer: buf});
-
-	var alg = sshbuf.readString();
-	assert.ok(!sshbuf.atEnd(), 'key must have at least one part');
-
-	key.type = algToKeyType(alg);
-
-	var partCount = algs.info[key.type].parts.length;
-	if (type && type === 'private')
-		partCount = algs.privInfo[key.type].parts.length;
-
-	while (!sshbuf.atEnd() && parts.length < partCount)
-		parts.push(sshbuf.readPart());
-	while (!partial && !sshbuf.atEnd())
-		parts.push(sshbuf.readPart());
-
-	assert.ok(parts.length >= 1,
-	    'key must have at least one part');
-	assert.ok(partial || sshbuf.atEnd(),
-	    'leftover bytes at end of key');
-
-	var Constructor = Key;
-	var algInfo = algs.info[key.type];
-	if (type === 'private' || algInfo.parts.length !== parts.length) {
-		algInfo = algs.privInfo[key.type];
-		Constructor = PrivateKey;
-	}
-	assert.strictEqual(algInfo.parts.length, parts.length);
-
-	if (key.type === 'ecdsa') {
-		var res = /^ecdsa-sha2-(.+)$/.exec(alg);
-		assert.ok(res !== null);
-		assert.strictEqual(res[1], parts[0].data.toString());
-	}
-
-	var normalized = true;
-	for (var i = 0; i < algInfo.parts.length; ++i) {
-		var p = parts[i];
-		p.name = algInfo.parts[i];
-		/*
-		 * OpenSSH stores ed25519 "private" keys as seed + public key
-		 * concat'd together (k followed by A). We want to keep them
-		 * separate for other formats that don't do this.
-		 */
-		if (key.type === 'ed25519' && p.name === 'k')
-			p.data = p.data.slice(0, 32);
-
-		if (p.name !== 'curve' && algInfo.normalize !== false) {
-			var nd;
-			if (key.type === 'ed25519') {
-				nd = utils.zeroPadToLength(p.data, 32);
-			} else {
-				nd = utils.mpNormalize(p.data);
-			}
-			if (nd.toString('binary') !==
-			    p.data.toString('binary')) {
-				p.data = nd;
-				normalized = false;
-			}
-		}
-	}
-
-	if (normalized)
-		key._rfc4253Cache = sshbuf.toBuffer();
-
-	if (partial && typeof (partial) === 'object') {
-		partial.remainder = sshbuf.remainder();
-		partial.consumed = sshbuf._offset;
-	}
-
-	return (new Constructor(key));
-}
-
-function write(key, options) {
-	assert.object(key);
-
-	var alg = keyTypeToAlg(key);
-	var i;
-
-	var algInfo = algs.info[key.type];
-	if (PrivateKey.isPrivateKey(key))
-		algInfo = algs.privInfo[key.type];
-	var parts = algInfo.parts;
-
-	var buf = new SSHBuffer({});
-
-	buf.writeString(alg);
-
-	for (i = 0; i < parts.length; ++i) {
-		var data = key.part[parts[i]].data;
-		if (algInfo.normalize !== false) {
-			if (key.type === 'ed25519')
-				data = utils.zeroPadToLength(data, 32);
-			else
-				data = utils.mpNormalize(data);
-		}
-		if (key.type === 'ed25519' && parts[i] === 'k')
-			data = Buffer.concat([data, key.part.A.data]);
-		buf.writeBuffer(data);
-	}
-
-	return (buf.toBuffer());
-}
-
-
-/***/ }),
-/* 104 */
-/***/ (function(module, exports) {
-
-module.exports = require("tty");
-
-/***/ }),
-/* 105 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-exports.default = function (str, fileLoc = 'lockfile') {
-  str = (0, (_stripBom || _load_stripBom()).default)(str);
-  return hasMergeConflicts(str) ? parseWithConflict(str, fileLoc) : { type: 'success', object: parse(str, fileLoc) };
-};
-
-var _util;
-
-function _load_util() {
-  return _util = _interopRequireDefault(__webpack_require__(3));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _stripBom;
-
-function _load_stripBom() {
-  return _stripBom = _interopRequireDefault(__webpack_require__(160));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint quotes: 0 */
-
-var _require = __webpack_require__(279);
-
-const safeLoad = _require.safeLoad,
-      FAILSAFE_SCHEMA = _require.FAILSAFE_SCHEMA;
-
-
-const VERSION_REGEX = /^yarn lockfile v(\d+)$/;
-
-const TOKEN_TYPES = {
-  boolean: 'BOOLEAN',
-  string: 'STRING',
-  identifier: 'IDENTIFIER',
-  eof: 'EOF',
-  colon: 'COLON',
-  newline: 'NEWLINE',
-  comment: 'COMMENT',
-  indent: 'INDENT',
-  invalid: 'INVALID',
-  number: 'NUMBER',
-  comma: 'COMMA'
-};
-
-const VALID_PROP_VALUE_TOKENS = [TOKEN_TYPES.boolean, TOKEN_TYPES.string, TOKEN_TYPES.number];
-
-function isValidPropValueToken(token) {
-  return VALID_PROP_VALUE_TOKENS.indexOf(token.type) >= 0;
-}
-
-function* tokenise(input) {
-  let lastNewline = false;
-  let line = 1;
-  let col = 0;
-
-  function buildToken(type, value) {
-    return { line, col, type, value };
-  }
-
-  while (input.length) {
-    let chop = 0;
-
-    if (input[0] === '\n' || input[0] === '\r') {
-      chop++;
-      // If this is a \r\n line, ignore both chars but only add one new line
-      if (input[1] === '\n') {
-        chop++;
-      }
-      line++;
-      col = 0;
-      yield buildToken(TOKEN_TYPES.newline);
-    } else if (input[0] === '#') {
-      chop++;
-
-      let nextNewline = input.indexOf('\n', chop);
-      if (nextNewline === -1) {
-        nextNewline = input.length;
-      }
-      const val = input.substring(chop, nextNewline);
-      chop = nextNewline;
-      yield buildToken(TOKEN_TYPES.comment, val);
-    } else if (input[0] === ' ') {
-      if (lastNewline) {
-        let indentSize = 1;
-        for (let i = 1; input[i] === ' '; i++) {
-          indentSize++;
-        }
-
-        if (indentSize % 2) {
-          throw new TypeError('Invalid number of spaces');
-        } else {
-          chop = indentSize;
-          yield buildToken(TOKEN_TYPES.indent, indentSize / 2);
-        }
-      } else {
-        chop++;
-      }
-    } else if (input[0] === '"') {
-      let i = 1;
-      for (; i < input.length; i++) {
-        if (input[i] === '"') {
-          const isEscaped = input[i - 1] === '\\' && input[i - 2] !== '\\';
-          if (!isEscaped) {
-            i++;
-            break;
-          }
-        }
-      }
-      const val = input.substring(0, i);
-
-      chop = i;
-
-      try {
-        yield buildToken(TOKEN_TYPES.string, JSON.parse(val));
-      } catch (err) {
-        if (err instanceof SyntaxError) {
-          yield buildToken(TOKEN_TYPES.invalid);
-        } else {
-          throw err;
-        }
-      }
-    } else if (/^[0-9]/.test(input)) {
-      const val = /^[0-9]+/.exec(input)[0];
-      chop = val.length;
-
-      yield buildToken(TOKEN_TYPES.number, +val);
-    } else if (/^true/.test(input)) {
-      yield buildToken(TOKEN_TYPES.boolean, true);
-      chop = 4;
-    } else if (/^false/.test(input)) {
-      yield buildToken(TOKEN_TYPES.boolean, false);
-      chop = 5;
-    } else if (input[0] === ':') {
-      yield buildToken(TOKEN_TYPES.colon);
-      chop++;
-    } else if (input[0] === ',') {
-      yield buildToken(TOKEN_TYPES.comma);
-      chop++;
-    } else if (/^[a-zA-Z\/.-]/g.test(input)) {
-      let i = 0;
-      for (; i < input.length; i++) {
-        const char = input[i];
-        if (char === ':' || char === ' ' || char === '\n' || char === '\r' || char === ',') {
-          break;
-        }
-      }
-      const name = input.substring(0, i);
-      chop = i;
-
-      yield buildToken(TOKEN_TYPES.string, name);
-    } else {
-      yield buildToken(TOKEN_TYPES.invalid);
-    }
-
-    if (!chop) {
-      // will trigger infinite recursion
-      yield buildToken(TOKEN_TYPES.invalid);
-    }
-
-    col += chop;
-    lastNewline = input[0] === '\n' || input[0] === '\r' && input[1] === '\n';
-    input = input.slice(chop);
-  }
-
-  yield buildToken(TOKEN_TYPES.eof);
-}
-
-class Parser {
-  constructor(input, fileLoc = 'lockfile') {
-    this.comments = [];
-    this.tokens = tokenise(input);
-    this.fileLoc = fileLoc;
-  }
-
-  onComment(token) {
-    const value = token.value;
-    (0, (_invariant || _load_invariant()).default)(typeof value === 'string', 'expected token value to be a string');
-
-    const comment = value.trim();
-
-    const versionMatch = comment.match(VERSION_REGEX);
-    if (versionMatch) {
-      const version = +versionMatch[1];
-      if (version > (_constants || _load_constants()).LOCKFILE_VERSION) {
-        throw new (_errors || _load_errors()).MessageError(`Can't install from a lockfile of version ${version} as you're on an old yarn version that only supports ` + `versions up to ${(_constants || _load_constants()).LOCKFILE_VERSION}. Run \`$ yarn self-update\` to upgrade to the latest version.`);
-      }
-    }
-
-    this.comments.push(comment);
-  }
-
-  next() {
-    const item = this.tokens.next();
-    (0, (_invariant || _load_invariant()).default)(item, 'expected a token');
-
-    const done = item.done,
-          value = item.value;
-
-    if (done || !value) {
-      throw new Error('No more tokens');
-    } else if (value.type === TOKEN_TYPES.comment) {
-      this.onComment(value);
-      return this.next();
-    } else {
-      return this.token = value;
-    }
-  }
-
-  unexpected(msg = 'Unexpected token') {
-    throw new SyntaxError(`${msg} ${this.token.line}:${this.token.col} in ${this.fileLoc}`);
-  }
-
-  expect(tokType) {
-    if (this.token.type === tokType) {
-      this.next();
-    } else {
-      this.unexpected();
-    }
-  }
-
-  eat(tokType) {
-    if (this.token.type === tokType) {
-      this.next();
-      return true;
-    } else {
-      return false;
-    }
-  }
-
-  parse(indent = 0) {
-    const obj = (0, (_map || _load_map()).default)();
-
-    while (true) {
-      const propToken = this.token;
-
-      if (propToken.type === TOKEN_TYPES.newline) {
-        const nextToken = this.next();
-        if (!indent) {
-          // if we have 0 indentation then the next token doesn't matter
-          continue;
-        }
-
-        if (nextToken.type !== TOKEN_TYPES.indent) {
-          // if we have no indentation after a newline then we've gone down a level
-          break;
-        }
-
-        if (nextToken.value === indent) {
-          // all is good, the indent is on our level
-          this.next();
-        } else {
-          // the indentation is less than our level
-          break;
-        }
-      } else if (propToken.type === TOKEN_TYPES.indent) {
-        if (propToken.value === indent) {
-          this.next();
-        } else {
-          break;
-        }
-      } else if (propToken.type === TOKEN_TYPES.eof) {
-        break;
-      } else if (propToken.type === TOKEN_TYPES.string) {
-        // property key
-        const key = propToken.value;
-        (0, (_invariant || _load_invariant()).default)(key, 'Expected a key');
-
-        const keys = [key];
-        this.next();
-
-        // support multiple keys
-        while (this.token.type === TOKEN_TYPES.comma) {
-          this.next(); // skip comma
-
-          const keyToken = this.token;
-          if (keyToken.type !== TOKEN_TYPES.string) {
-            this.unexpected('Expected string');
-          }
-
-          const key = keyToken.value;
-          (0, (_invariant || _load_invariant()).default)(key, 'Expected a key');
-          keys.push(key);
-          this.next();
-        }
-
-        const wasColon = this.token.type === TOKEN_TYPES.colon;
-        if (wasColon) {
-          this.next();
-        }
-
-        if (isValidPropValueToken(this.token)) {
-          // plain value
-          for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-            var _ref;
-
-            if (_isArray) {
-              if (_i >= _iterator.length) break;
-              _ref = _iterator[_i++];
-            } else {
-              _i = _iterator.next();
-              if (_i.done) break;
-              _ref = _i.value;
-            }
-
-            const key = _ref;
-
-            obj[key] = this.token.value;
-          }
-
-          this.next();
-        } else if (wasColon) {
-          // parse object
-          const val = this.parse(indent + 1);
-
-          for (var _iterator2 = keys, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-            var _ref2;
-
-            if (_isArray2) {
-              if (_i2 >= _iterator2.length) break;
-              _ref2 = _iterator2[_i2++];
-            } else {
-              _i2 = _iterator2.next();
-              if (_i2.done) break;
-              _ref2 = _i2.value;
-            }
-
-            const key = _ref2;
-
-            obj[key] = val;
-          }
-
-          if (indent && this.token.type !== TOKEN_TYPES.indent) {
-            break;
-          }
-        } else {
-          this.unexpected('Invalid value type');
-        }
-      } else {
-        this.unexpected(`Unknown token: ${(_util || _load_util()).default.inspect(propToken)}`);
-      }
-    }
-
-    return obj;
-  }
-}
-
-const MERGE_CONFLICT_ANCESTOR = '|||||||';
-const MERGE_CONFLICT_END = '>>>>>>>';
-const MERGE_CONFLICT_SEP = '=======';
-const MERGE_CONFLICT_START = '<<<<<<<';
-
-/**
- * Extract the two versions of the lockfile from a merge conflict.
- */
-function extractConflictVariants(str) {
-  const variants = [[], []];
-  const lines = str.split(/\r?\n/g);
-  let skip = false;
-
-  while (lines.length) {
-    const line = lines.shift();
-    if (line.startsWith(MERGE_CONFLICT_START)) {
-      // get the first variant
-      while (lines.length) {
-        const conflictLine = lines.shift();
-        if (conflictLine === MERGE_CONFLICT_SEP) {
-          skip = false;
-          break;
-        } else if (skip || conflictLine.startsWith(MERGE_CONFLICT_ANCESTOR)) {
-          skip = true;
-          continue;
-        } else {
-          variants[0].push(conflictLine);
-        }
-      }
-
-      // get the second variant
-      while (lines.length) {
-        const conflictLine = lines.shift();
-        if (conflictLine.startsWith(MERGE_CONFLICT_END)) {
-          break;
-        } else {
-          variants[1].push(conflictLine);
-        }
-      }
-    } else {
-      variants[0].push(line);
-      variants[1].push(line);
-    }
-  }
-
-  return [variants[0].join('\n'), variants[1].join('\n')];
-}
-
-/**
- * Check if a lockfile has merge conflicts.
- */
-function hasMergeConflicts(str) {
-  return str.includes(MERGE_CONFLICT_START) && str.includes(MERGE_CONFLICT_SEP) && str.includes(MERGE_CONFLICT_END);
-}
-
-/**
- * Parse the lockfile.
- */
-function parse(str, fileLoc) {
-  const parser = new Parser(str, fileLoc);
-  parser.next();
-  try {
-    return parser.parse();
-  } catch (error1) {
-    try {
-      return safeLoad(str, {
-        schema: FAILSAFE_SCHEMA
-      });
-    } catch (error2) {
-      throw error1;
-    }
-  }
-}
-
-/**
- * Parse and merge the two variants in a conflicted lockfile.
- */
-function parseWithConflict(str, fileLoc) {
-  const variants = extractConflictVariants(str);
-  try {
-    return { type: 'merge', object: Object.assign({}, parse(variants[0], fileLoc), parse(variants[1], fileLoc)) };
-  } catch (err) {
-    if (err instanceof SyntaxError) {
-      return { type: 'conflict', object: {} };
-    } else {
-      throw err;
-    }
-  }
-}
-
-/***/ }),
-/* 106 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-module.exports = {
-  copy: copy,
-  checkDataType: checkDataType,
-  checkDataTypes: checkDataTypes,
-  coerceToTypes: coerceToTypes,
-  toHash: toHash,
-  getProperty: getProperty,
-  escapeQuotes: escapeQuotes,
-  equal: __webpack_require__(204),
-  ucs2length: __webpack_require__(480),
-  varOccurences: varOccurences,
-  varReplace: varReplace,
-  cleanUpCode: cleanUpCode,
-  finalCleanUpCode: finalCleanUpCode,
-  schemaHasRules: schemaHasRules,
-  schemaHasRulesExcept: schemaHasRulesExcept,
-  toQuotedString: toQuotedString,
-  getPathExpr: getPathExpr,
-  getPath: getPath,
-  getData: getData,
-  unescapeFragment: unescapeFragment,
-  unescapeJsonPointer: unescapeJsonPointer,
-  escapeFragment: escapeFragment,
-  escapeJsonPointer: escapeJsonPointer
-};
-
-
-function copy(o, to) {
-  to = to || {};
-  for (var key in o) to[key] = o[key];
-  return to;
-}
-
-
-function checkDataType(dataType, data, negate) {
-  var EQUAL = negate ? ' !== ' : ' === '
-    , AND = negate ? ' || ' : ' && '
-    , OK = negate ? '!' : ''
-    , NOT = negate ? '' : '!';
-  switch (dataType) {
-    case 'null': return data + EQUAL + 'null';
-    case 'array': return OK + 'Array.isArray(' + data + ')';
-    case 'object': return '(' + OK + data + AND +
-                          'typeof ' + data + EQUAL + '"object"' + AND +
-                          NOT + 'Array.isArray(' + data + '))';
-    case 'integer': return '(typeof ' + data + EQUAL + '"number"' + AND +
-                           NOT + '(' + data + ' % 1)' +
-                           AND + data + EQUAL + data + ')';
-    default: return 'typeof ' + data + EQUAL + '"' + dataType + '"';
-  }
-}
-
-
-function checkDataTypes(dataTypes, data) {
-  switch (dataTypes.length) {
-    case 1: return checkDataType(dataTypes[0], data, true);
-    default:
-      var code = '';
-      var types = toHash(dataTypes);
-      if (types.array && types.object) {
-        code = types.null ? '(': '(!' + data + ' || ';
-        code += 'typeof ' + data + ' !== "object")';
-        delete types.null;
-        delete types.array;
-        delete types.object;
-      }
-      if (types.number) delete types.integer;
-      for (var t in types)
-        code += (code ? ' && ' : '' ) + checkDataType(t, data, true);
-
-      return code;
-  }
-}
-
-
-var COERCE_TO_TYPES = toHash([ 'string', 'number', 'integer', 'boolean', 'null' ]);
-function coerceToTypes(optionCoerceTypes, dataTypes) {
-  if (Array.isArray(dataTypes)) {
-    var types = [];
-    for (var i=0; i<dataTypes.length; i++) {
-      var t = dataTypes[i];
-      if (COERCE_TO_TYPES[t]) types[types.length] = t;
-      else if (optionCoerceTypes === 'array' && t === 'array') types[types.length] = t;
-    }
-    if (types.length) return types;
-  } else if (COERCE_TO_TYPES[dataTypes]) {
-    return [dataTypes];
-  } else if (optionCoerceTypes === 'array' && dataTypes === 'array') {
-    return ['array'];
-  }
-}
-
-
-function toHash(arr) {
-  var hash = {};
-  for (var i=0; i<arr.length; i++) hash[arr[i]] = true;
-  return hash;
-}
-
-
-var IDENTIFIER = /^[a-z$_][a-z$_0-9]*$/i;
-var SINGLE_QUOTE = /'|\\/g;
-function getProperty(key) {
-  return typeof key == 'number'
-          ? '[' + key + ']'
-          : IDENTIFIER.test(key)
-            ? '.' + key
-            : "['" + escapeQuotes(key) + "']";
-}
-
-
-function escapeQuotes(str) {
-  return str.replace(SINGLE_QUOTE, '\\$&')
-            .replace(/\n/g, '\\n')
-            .replace(/\r/g, '\\r')
-            .replace(/\f/g, '\\f')
-            .replace(/\t/g, '\\t');
-}
-
-
-function varOccurences(str, dataVar) {
-  dataVar += '[^0-9]';
-  var matches = str.match(new RegExp(dataVar, 'g'));
-  return matches ? matches.length : 0;
-}
-
-
-function varReplace(str, dataVar, expr) {
-  dataVar += '([^0-9])';
-  expr = expr.replace(/\$/g, '$$$$');
-  return str.replace(new RegExp(dataVar, 'g'), expr + '$1');
-}
-
-
-var EMPTY_ELSE = /else\s*{\s*}/g
-  , EMPTY_IF_NO_ELSE = /if\s*\([^)]+\)\s*\{\s*\}(?!\s*else)/g
-  , EMPTY_IF_WITH_ELSE = /if\s*\(([^)]+)\)\s*\{\s*\}\s*else(?!\s*if)/g;
-function cleanUpCode(out) {
-  return out.replace(EMPTY_ELSE, '')
-            .replace(EMPTY_IF_NO_ELSE, '')
-            .replace(EMPTY_IF_WITH_ELSE, 'if (!($1))');
-}
-
-
-var ERRORS_REGEXP = /[^v.]errors/g
-  , REMOVE_ERRORS = /var errors = 0;|var vErrors = null;|validate.errors = vErrors;/g
-  , REMOVE_ERRORS_ASYNC = /var errors = 0;|var vErrors = null;/g
-  , RETURN_VALID = 'return errors === 0;'
-  , RETURN_TRUE = 'validate.errors = null; return true;'
-  , RETURN_ASYNC = /if \(errors === 0\) return data;\s*else throw new ValidationError\(vErrors\);/
-  , RETURN_DATA_ASYNC = 'return data;'
-  , ROOTDATA_REGEXP = /[^A-Za-z_$]rootData[^A-Za-z0-9_$]/g
-  , REMOVE_ROOTDATA = /if \(rootData === undefined\) rootData = data;/;
-
-function finalCleanUpCode(out, async) {
-  var matches = out.match(ERRORS_REGEXP);
-  if (matches && matches.length == 2) {
-    out = async
-          ? out.replace(REMOVE_ERRORS_ASYNC, '')
-               .replace(RETURN_ASYNC, RETURN_DATA_ASYNC)
-          : out.replace(REMOVE_ERRORS, '')
-               .replace(RETURN_VALID, RETURN_TRUE);
-  }
-
-  matches = out.match(ROOTDATA_REGEXP);
-  if (!matches || matches.length !== 3) return out;
-  return out.replace(REMOVE_ROOTDATA, '');
-}
-
-
-function schemaHasRules(schema, rules) {
-  if (typeof schema == 'boolean') return !schema;
-  for (var key in schema) if (rules[key]) return true;
-}
-
-
-function schemaHasRulesExcept(schema, rules, exceptKeyword) {
-  if (typeof schema == 'boolean') return !schema && exceptKeyword != 'not';
-  for (var key in schema) if (key != exceptKeyword && rules[key]) return true;
-}
-
-
-function toQuotedString(str) {
-  return '\'' + escapeQuotes(str) + '\'';
-}
-
-
-function getPathExpr(currentPath, expr, jsonPointers, isNumber) {
-  var path = jsonPointers // false by default
-              ? '\'/\' + ' + expr + (isNumber ? '' : '.replace(/~/g, \'~0\').replace(/\\//g, \'~1\')')
-              : (isNumber ? '\'[\' + ' + expr + ' + \']\'' : '\'[\\\'\' + ' + expr + ' + \'\\\']\'');
-  return joinPaths(currentPath, path);
-}
-
-
-function getPath(currentPath, prop, jsonPointers) {
-  var path = jsonPointers // false by default
-              ? toQuotedString('/' + escapeJsonPointer(prop))
-              : toQuotedString(getProperty(prop));
-  return joinPaths(currentPath, path);
-}
-
-
-var JSON_POINTER = /^\/(?:[^~]|~0|~1)*$/;
-var RELATIVE_JSON_POINTER = /^([0-9]+)(#|\/(?:[^~]|~0|~1)*)?$/;
-function getData($data, lvl, paths) {
-  var up, jsonPointer, data, matches;
-  if ($data === '') return 'rootData';
-  if ($data[0] == '/') {
-    if (!JSON_POINTER.test($data)) throw new Error('Invalid JSON-pointer: ' + $data);
-    jsonPointer = $data;
-    data = 'rootData';
-  } else {
-    matches = $data.match(RELATIVE_JSON_POINTER);
-    if (!matches) throw new Error('Invalid JSON-pointer: ' + $data);
-    up = +matches[1];
-    jsonPointer = matches[2];
-    if (jsonPointer == '#') {
-      if (up >= lvl) throw new Error('Cannot access property/index ' + up + ' levels up, current level is ' + lvl);
-      return paths[lvl - up];
-    }
-
-    if (up > lvl) throw new Error('Cannot access data ' + up + ' levels up, current level is ' + lvl);
-    data = 'data' + ((lvl - up) || '');
-    if (!jsonPointer) return data;
-  }
-
-  var expr = data;
-  var segments = jsonPointer.split('/');
-  for (var i=0; i<segments.length; i++) {
-    var segment = segments[i];
-    if (segment) {
-      data += getProperty(unescapeJsonPointer(segment));
-      expr += ' && ' + data;
-    }
-  }
-  return expr;
-}
-
-
-function joinPaths (a, b) {
-  if (a == '""') return b;
-  return (a + ' + ' + b).replace(/' \+ '/g, '');
-}
-
-
-function unescapeFragment(str) {
-  return unescapeJsonPointer(decodeURIComponent(str));
-}
-
-
-function escapeFragment(str) {
-  return encodeURIComponent(escapeJsonPointer(str));
-}
-
-
-function escapeJsonPointer(str) {
-  return str.replace(/~/g, '~0').replace(/\//g, '~1');
-}
-
-
-function unescapeJsonPointer(str) {
-  return str.replace(/~1/g, '/').replace(/~0/g, '~');
-}
-
-
-/***/ }),
-/* 107 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.getToken = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getCredentials = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter) {
-    var _config$registries$ya = config.registries.yarn.config;
-    let username = _config$registries$ya.username,
-        email = _config$registries$ya.email;
-
-
-    if (username) {
-      reporter.info(`${reporter.lang('npmUsername')}: ${username}`);
-    } else {
-      username = yield reporter.question(reporter.lang('npmUsername'));
-      if (!username) {
-        return null;
-      }
-    }
-
-    if (email) {
-      reporter.info(`${reporter.lang('npmEmail')}: ${email}`);
-    } else {
-      email = yield reporter.question(reporter.lang('npmEmail'));
-      if (!email) {
-        return null;
-      }
-    }
-
-    yield config.registries.yarn.saveHomeConfig({ username, email });
-
-    return { username, email };
-  });
-
-  return function getCredentials(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let getToken = exports.getToken = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, name = '', flags = {}, registry = '') {
-    const auth = registry ? config.registries.npm.getAuthByRegistry(registry) : config.registries.npm.getAuth(name);
-
-    if (config.otp) {
-      config.registries.npm.setOtp(config.otp);
-    }
-
-    if (auth) {
-      config.registries.npm.setToken(auth);
-      return function revoke() {
-        reporter.info(reporter.lang('notRevokingConfigToken'));
-        return Promise.resolve();
-      };
-    }
-
-    const env = process.env.YARN_AUTH_TOKEN || process.env.NPM_AUTH_TOKEN;
-    if (env) {
-      config.registries.npm.setToken(`Bearer ${env}`);
-      return function revoke() {
-        reporter.info(reporter.lang('notRevokingEnvToken'));
-        return Promise.resolve();
-      };
-    }
-
-    // make sure we're not running in non-interactive mode before asking for login
-    if (flags.nonInteractive || config.nonInteractive) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('nonInteractiveNoToken'));
-    }
-
-    //
-    const creds = yield getCredentials(config, reporter);
-    if (!creds) {
-      reporter.warn(reporter.lang('loginAsPublic'));
-      return function revoke() {
-        reporter.info(reporter.lang('noTokenToRevoke'));
-        return Promise.resolve();
-      };
-    }
-
-    const username = creds.username,
-          email = creds.email;
-
-    const password = yield reporter.question(reporter.lang('npmPassword'), {
-      password: true,
-      required: true
-    });
-
-    //
-    const userobj = {
-      _id: `org.couchdb.user:${username}`,
-      name: username,
-      password,
-      email,
-      type: 'user',
-      roles: [],
-      date: new Date().toISOString()
-    };
-
-    //
-    const res = yield config.registries.npm.request(`-/user/org.couchdb.user:${encodeURIComponent(username)}`, {
-      method: 'PUT',
-      registry,
-      body: userobj,
-      auth: { username, password, email }
-    });
-
-    if (res && res.ok) {
-      reporter.success(reporter.lang('loggedIn'));
-
-      const token = res.token;
-      config.registries.npm.setToken(`Bearer ${token}`);
-
-      return (() => {
-        var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-          reporter.success(reporter.lang('revokedToken'));
-          yield config.registries.npm.request(`-/user/token/${token}`, {
-            method: 'DELETE',
-            registry
-          });
-        });
-
-        function revoke() {
-          return _ref3.apply(this, arguments);
-        }
-
-        return revoke;
-      })();
-    } else {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('incorrectCredentials'));
-    }
-  });
-
-  return function getToken(_x3, _x4) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    yield getCredentials(config, reporter);
-  });
-
-  return function run(_x5, _x6, _x7, _x8) {
-    return _ref4.apply(this, arguments);
-  };
-})();
-
-exports.getOneTimePassword = getOneTimePassword;
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function getOneTimePassword(reporter) {
-  return reporter.question(reporter.lang('npmOneTimePassword'));
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Stores registry username and email.');
-}
-
-/***/ }),
-/* 108 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-exports.stringifyLangArgs = stringifyLangArgs;
-
-var _format;
-
-function _load_format() {
-  return _format = __webpack_require__(566);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireWildcard(__webpack_require__(568));
-}
-
-var _isCi;
-
-function _load_isCi() {
-  return _isCi = _interopRequireDefault(__webpack_require__(397));
-}
-
-var _os;
-
-function _load_os() {
-  return _os = _interopRequireDefault(__webpack_require__(46));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint no-unused-vars: 0 */
-
-const util = __webpack_require__(3);
-const EventEmitter = __webpack_require__(77).EventEmitter;
-
-function stringifyLangArgs(args) {
-  return args.map(function (val) {
-    if (val != null && val.inspect) {
-      return val.inspect();
-    } else {
-      try {
-        const str = JSON.stringify(val) || val + '';
-        // should match all literal line breaks and
-        // "u001b" that follow an odd number of backslashes and convert them to ESC
-        // we do this because the JSON.stringify process has escaped these characters
-        return str.replace(/((?:^|[^\\])(?:\\{2})*)\\u001[bB]/g, '$1\u001b').replace(/[\\]r[\\]n|([\\])?[\\]n/g, (match, precededBacklash) => {
-          // precededBacklash not null when "\n" is preceded by a backlash ("\\n")
-          // match will be "\\n" and we don't replace it with os.EOL
-          return precededBacklash ? match : (_os || _load_os()).default.EOL;
-        });
-      } catch (e) {
-        return util.inspect(val);
-      }
-    }
-  });
-}
-
-class BaseReporter {
-  constructor(opts = {}) {
-    const lang = 'en';
-    this.language = lang;
-
-    this.stdout = opts.stdout || process.stdout;
-    this.stderr = opts.stderr || process.stderr;
-    this.stdin = opts.stdin || this._getStandardInput();
-    this.emoji = !!opts.emoji;
-    this.nonInteractive = !!opts.nonInteractive;
-    this.noProgress = !!opts.noProgress || (_isCi || _load_isCi()).default;
-    this.isVerbose = !!opts.verbose;
-
-    // $FlowFixMe: this is valid!
-    this.isTTY = this.stdout.isTTY;
-
-    this.peakMemory = 0;
-    this.startTime = Date.now();
-    this.format = (_format || _load_format()).defaultFormatter;
-  }
-
-  lang(key, ...args) {
-    const msg = (_index || _load_index())[this.language][key] || (_index || _load_index()).en[key];
-    if (!msg) {
-      throw new ReferenceError(`No message defined for language key ${key}`);
-    }
-
-    // stringify args
-    const stringifiedArgs = stringifyLangArgs(args);
-
-    // replace $0 placeholders with args
-    return msg.replace(/\$(\d+)/g, (str, i) => {
-      return stringifiedArgs[i];
-    });
-  }
-
-  /**
-   * `stringifyLangArgs` run `JSON.stringify` on strings too causing
-   * them to appear quoted. This marks them as "raw" and prevents
-   * the quoting and escaping
-   */
-  rawText(str) {
-    return {
-      inspect() {
-        return str;
-      }
-    };
-  }
-
-  verbose(msg) {
-    if (this.isVerbose) {
-      this._verbose(msg);
-    }
-  }
-
-  verboseInspect(val) {
-    if (this.isVerbose) {
-      this._verboseInspect(val);
-    }
-  }
-
-  _verbose(msg) {}
-  _verboseInspect(val) {}
-
-  _getStandardInput() {
-    let standardInput;
-
-    // Accessing stdin in a win32 headless process (e.g., Visual Studio) may throw an exception.
-    try {
-      standardInput = process.stdin;
-    } catch (e) {
-      console.warn(e.message);
-      delete process.stdin;
-      // $FlowFixMe: this is valid!
-      process.stdin = new EventEmitter();
-      standardInput = process.stdin;
-    }
-
-    return standardInput;
-  }
-
-  initPeakMemoryCounter() {
-    this.checkPeakMemory();
-    this.peakMemoryInterval = setInterval(() => {
-      this.checkPeakMemory();
-    }, 1000);
-    // $FlowFixMe: Node's setInterval returns a Timeout, not a Number
-    this.peakMemoryInterval.unref();
-  }
-
-  checkPeakMemory() {
-    var _process$memoryUsage = process.memoryUsage();
-
-    const heapTotal = _process$memoryUsage.heapTotal;
-
-    if (heapTotal > this.peakMemory) {
-      this.peakMemory = heapTotal;
-    }
-  }
-
-  close() {
-    if (this.peakMemoryInterval) {
-      clearInterval(this.peakMemoryInterval);
-      this.peakMemoryInterval = null;
-    }
-  }
-
-  getTotalTime() {
-    return Date.now() - this.startTime;
-  }
-
-  // TODO
-  list(key, items, hints) {}
-
-  // Outputs basic tree structure to console
-  tree(key, obj, { force = false } = {}) {}
-
-  // called whenever we begin a step in the CLI.
-  step(current, total, message, emoji) {}
-
-  // a error message has been triggered. this however does not always meant an abrupt
-  // program end.
-  error(message) {}
-
-  // an info message has been triggered. this provides things like stats and diagnostics.
-  info(message) {}
-
-  // a warning message has been triggered.
-  warn(message) {}
-
-  // a success message has been triggered.
-  success(message) {}
-
-  // a simple log message
-  // TODO: rethink the {force} parameter. In the meantime, please don't use it (cf comments in #4143).
-  log(message, { force = false } = {}) {}
-
-  // a shell command has been executed
-  command(command) {}
-
-  // inspect and pretty-print any value
-  inspect(value) {}
-
-  // the screen shown at the very start of the CLI
-  header(command, pkg) {}
-
-  // the screen shown at the very end of the CLI
-  footer(showPeakMemory) {}
-
-  // a table structure
-  table(head, body) {}
-
-  // security audit action to resolve advisories
-  auditAction(recommendation) {}
-
-  // security audit requires manual review
-  auditManualReview() {}
-
-  // security audit advisory
-  auditAdvisory(resolution, auditAdvisory) {}
-
-  // summary for security audit report
-  auditSummary(auditMetadata) {}
-
-  // render an activity spinner and return a function that will trigger an update
-  activity() {
-    return {
-      tick(name) {},
-      end() {}
-    };
-  }
-
-  //
-  activitySet(total, workers) {
-    return {
-      spinners: Array(workers).fill({
-        clear() {},
-        setPrefix() {},
-        tick() {},
-        end() {}
-      }),
-      end() {}
-    };
-  }
-
-  //
-  question(question, options = {}) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-
-  //
-  questionAffirm(question) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const condition = true; // trick eslint
-      if (_this.nonInteractive) {
-        return true;
-      }
-
-      while (condition) {
-        let answer = yield _this.question(question);
-        answer = answer.toLowerCase();
-
-        if (answer === 'y' || answer === 'yes') {
-          return true;
-        }
-        if (answer === 'n' || answer === 'no') {
-          return false;
-        }
-
-        _this.error('Invalid answer for question');
-      }
-
-      return false;
-    })();
-  }
-
-  // prompt the user to select an option from an array
-  select(header, question, options) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-
-  // render a progress bar and return a function which when called will trigger an update
-  progress(total) {
-    return function () {};
-  }
-
-  // utility function to disable progress bar
-  disableProgress() {
-    this.noProgress = true;
-  }
-
-  //
-  prompt(message, choices, options = {}) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-}
-exports.default = BaseReporter;
-
-/***/ }),
-/* 109 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-exports.explodeHostedGitFragment = explodeHostedGitFragment;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _gitResolver;
-
-function _load_gitResolver() {
-  return _gitResolver = _interopRequireDefault(__webpack_require__(124));
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _git;
-
-function _load_git() {
-  return _git = _interopRequireDefault(__webpack_require__(219));
-}
-
-var _guessName;
-
-function _load_guessName() {
-  return _guessName = _interopRequireDefault(__webpack_require__(169));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function parseHash(fragment) {
-  const hashPosition = fragment.indexOf('#');
-  return hashPosition === -1 ? '' : fragment.substr(hashPosition + 1);
-}
-
-function explodeHostedGitFragment(fragment, reporter) {
-  const hash = parseHash(fragment);
-
-  const preParts = fragment.split('@');
-  if (preParts.length > 2) {
-    fragment = preParts[1] + '@' + preParts[2];
-  }
-
-  const parts = fragment.replace(/(.*?)#.*/, '$1') // Strip hash
-  .replace(/.*:(.*)/, '$1') // Strip prefixed protocols
-  .replace(/.git$/, '') // Strip the .git suffix
-  .split('/');
-
-  const user = parts[parts.length - 2];
-  const repo = parts[parts.length - 1];
-
-  if (user === undefined || repo === undefined) {
-    throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidHostedGitFragment', fragment));
-  }
-
-  return {
-    user,
-    repo,
-    hash
-  };
-}
-
-class HostedGitResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-
-    const exploded = this.exploded = explodeHostedGitFragment(fragment, this.reporter);
-    const user = exploded.user,
-          repo = exploded.repo,
-          hash = exploded.hash;
-
-    this.user = user;
-    this.repo = repo;
-    this.hash = hash;
-  }
-
-  static getTarballUrl(exploded, commit) {
-    exploded;
-    commit;
-    throw new Error('Not implemented');
-  }
-
-  static getGitHTTPUrl(exploded) {
-    exploded;
-    throw new Error('Not implemented');
-  }
-
-  static getGitHTTPBaseUrl(exploded) {
-    exploded;
-    throw new Error('Not implemented');
-  }
-
-  static getGitSSHUrl(exploded) {
-    exploded;
-    throw new Error('Not implemented');
-  }
-
-  static getHTTPFileUrl(exploded, filename, commit) {
-    exploded;
-    filename;
-    commit;
-    throw new Error('Not implemented');
-  }
-
-  getRefOverHTTP(url) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const gitUrl = (_git || _load_git()).default.npmUrlToGitUrl(url);
-      const client = new (_git || _load_git()).default(_this.config, gitUrl, _this.hash);
-
-      let out = yield _this.config.requestManager.request({
-        url: `${url}/info/refs?service=git-upload-pack`,
-        queue: _this.resolver.fetchingQueue
-      });
-
-      if (out) {
-        // clean up output
-        let lines = out.trim().split('\n');
-
-        // remove first two lines which contains compatibility info etc
-        lines = lines.slice(2);
-
-        // remove last line which contains the terminator "0000"
-        lines.pop();
-
-        // remove line lengths from start of each line
-        lines = lines.map(function (line) {
-          return line.slice(4);
-        });
-
-        out = lines.join('\n');
-      } else {
-        throw new Error(_this.reporter.lang('hostedGitResolveError'));
-      }
-
-      return client.setRefHosted(out);
-    })();
-  }
-
-  resolveOverHTTP(url) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const commit = yield _this2.getRefOverHTTP(url);
-      const config = _this2.config;
-
-
-      const tarballUrl = _this2.constructor.getTarballUrl(_this2.exploded, commit);
-
-      const tryRegistry = (() => {
-        var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (registry) {
-          const filename = (_index || _load_index()).registries[registry].filename;
-
-          const href = _this2.constructor.getHTTPFileUrl(_this2.exploded, filename, commit);
-          const file = yield config.requestManager.request({
-            url: href,
-            queue: _this2.resolver.fetchingQueue
-          });
-          if (!file) {
-            return null;
-          }
-
-          const json = yield config.readJson(href, function () {
-            return JSON.parse(file);
-          });
-          json._uid = commit;
-          json._remote = {
-            resolved: tarballUrl,
-            type: 'tarball',
-            reference: tarballUrl,
-            registry
-          };
-          return json;
-        });
-
-        return function tryRegistry(_x) {
-          return _ref.apply(this, arguments);
-        };
-      })();
-
-      const file = yield tryRegistry(_this2.registry);
-      if (file) {
-        return file;
-      }
-
-      for (const registry in (_index || _load_index()).registries) {
-        if (registry === _this2.registry) {
-          continue;
-        }
-
-        const file = yield tryRegistry(registry);
-        if (file) {
-          return file;
-        }
-      }
-
-      return {
-        name: (0, (_guessName || _load_guessName()).default)(url),
-        version: '0.0.0',
-        _uid: commit,
-        _remote: {
-          resolved: tarballUrl,
-          type: 'tarball',
-          reference: tarballUrl,
-          registry: 'npm',
-          hash: undefined
-        }
-      };
-    })();
-  }
-
-  hasHTTPCapability(url) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      return (yield _this3.config.requestManager.request({
-        url,
-        method: 'HEAD',
-        queue: _this3.resolver.fetchingQueue,
-        followRedirect: false
-      })) !== false;
-    })();
-  }
-
-  resolve() {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // If we already have the tarball, just return it without having to make any HTTP requests.
-      const shrunk = _this4.request.getLocked('tarball');
-      if (shrunk) {
-        return shrunk;
-      }
-
-      const httpUrl = _this4.constructor.getGitHTTPUrl(_this4.exploded);
-      const httpBaseUrl = _this4.constructor.getGitHTTPBaseUrl(_this4.exploded);
-      const sshUrl = _this4.constructor.getGitSSHUrl(_this4.exploded);
-
-      // If we can access the files over HTTP then we should as it's MUCH faster than git
-      // archive and tarball unarchiving. The HTTP API is only available for public repos
-      // though.
-      if (yield _this4.hasHTTPCapability(httpBaseUrl)) {
-        return _this4.resolveOverHTTP(httpUrl);
-      }
-
-      // If the url is accessible over git archive then we should immediately delegate to
-      // the git resolver.
-      //
-      // NOTE: Here we use a different url than when we delegate to the git resolver later on.
-      // This is because `git archive` requires access over ssh and github only allows that
-      // if you have write permissions
-      const sshGitUrl = (_git || _load_git()).default.npmUrlToGitUrl(sshUrl);
-      if (yield (_git || _load_git()).default.hasArchiveCapability(sshGitUrl)) {
-        const archiveClient = new (_git || _load_git()).default(_this4.config, sshGitUrl, _this4.hash);
-        const commit = yield archiveClient.init();
-        return _this4.fork((_gitResolver || _load_gitResolver()).default, true, `${sshUrl}#${commit}`);
-      }
-
-      // fallback to the plain git resolver
-      return _this4.fork((_gitResolver || _load_gitResolver()).default, true, sshUrl);
-    })();
-  }
-}
-exports.default = HostedGitResolver;
-
-/***/ }),
-/* 110 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const debug = __webpack_require__(266)('yarn');
-
-class BlockingQueue {
-  constructor(alias, maxConcurrency = Infinity) {
-    this.concurrencyQueue = [];
-    this.maxConcurrency = maxConcurrency;
-    this.runningCount = 0;
-    this.warnedStuck = false;
-    this.alias = alias;
-    this.first = true;
-
-    this.running = (0, (_map || _load_map()).default)();
-    this.queue = (0, (_map || _load_map()).default)();
-
-    this.stuckTick = this.stuckTick.bind(this);
-  }
-
-  stillActive() {
-    if (this.stuckTimer) {
-      clearTimeout(this.stuckTimer);
-    }
-
-    this.stuckTimer = setTimeout(this.stuckTick, 5000);
-
-    // We need to check the existence of unref because of https://github.com/facebook/jest/issues/4559
-    // $FlowFixMe: Node's setInterval returns a Timeout, not a Number
-    this.stuckTimer.unref && this.stuckTimer.unref();
-  }
-
-  stuckTick() {
-    if (this.runningCount === 1) {
-      this.warnedStuck = true;
-      debug(`The ${JSON.stringify(this.alias)} blocking queue may be stuck. 5 seconds ` + `without any activity with 1 worker: ${Object.keys(this.running)[0]}`);
-    }
-  }
-
-  push(key, factory) {
-    if (this.first) {
-      this.first = false;
-    } else {
-      this.stillActive();
-    }
-
-    return new Promise((resolve, reject) => {
-      // we're already running so push ourselves to the queue
-      const queue = this.queue[key] = this.queue[key] || [];
-      queue.push({ factory, resolve, reject });
-
-      if (!this.running[key]) {
-        this.shift(key);
-      }
-    });
-  }
-
-  shift(key) {
-    if (this.running[key]) {
-      delete this.running[key];
-      this.runningCount--;
-
-      if (this.stuckTimer) {
-        clearTimeout(this.stuckTimer);
-        this.stuckTimer = null;
-      }
-
-      if (this.warnedStuck) {
-        this.warnedStuck = false;
-        debug(`${JSON.stringify(this.alias)} blocking queue finally resolved. Nothing to worry about.`);
-      }
-    }
-
-    const queue = this.queue[key];
-    if (!queue) {
-      return;
-    }
-
-    var _queue$shift = queue.shift();
-
-    const resolve = _queue$shift.resolve,
-          reject = _queue$shift.reject,
-          factory = _queue$shift.factory;
-
-    if (!queue.length) {
-      delete this.queue[key];
-    }
-
-    const next = () => {
-      this.shift(key);
-      this.shiftConcurrencyQueue();
-    };
-
-    const run = () => {
-      this.running[key] = true;
-      this.runningCount++;
-
-      factory().then(function (val) {
-        resolve(val);
-        next();
-        return null;
-      }).catch(function (err) {
-        reject(err);
-        next();
-      });
-    };
-
-    this.maybePushConcurrencyQueue(run);
-  }
-
-  maybePushConcurrencyQueue(run) {
-    if (this.runningCount < this.maxConcurrency) {
-      run();
-    } else {
-      this.concurrencyQueue.push(run);
-    }
-  }
-
-  shiftConcurrencyQueue() {
-    if (this.runningCount < this.maxConcurrency) {
-      const fn = this.concurrencyQueue.shift();
-      if (fn) {
-        fn();
-      }
-    }
-  }
-}
-exports.default = BlockingQueue;
-
-/***/ }),
-/* 111 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.execCommand = exports.execFromManifest = exports.executeLifecycleScript = exports.makeEnv = exports.getWrappersFolder = exports.IGNORE_MANIFEST_KEYS = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getWrappersFolder = exports.getWrappersFolder = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    if (wrappersFolder) {
-      return wrappersFolder;
-    }
-
-    wrappersFolder = yield (_fs || _load_fs()).makeTempDir();
-
-    yield (0, (_portableScript || _load_portableScript()).makePortableProxyScript)(process.execPath, wrappersFolder, {
-      proxyBasename: 'node'
-    });
-
-    yield (0, (_portableScript || _load_portableScript()).makePortableProxyScript)(process.execPath, wrappersFolder, {
-      proxyBasename: 'yarn',
-      prependArguments: [process.argv[1]]
-    });
-
-    return wrappersFolder;
-  });
-
-  return function getWrappersFolder(_x) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let makeEnv = exports.makeEnv = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (stage, cwd, config) {
-    const env = (0, (_extends2 || _load_extends()).default)({
-      NODE: process.execPath,
-      INIT_CWD: process.cwd()
-    }, process.env);
-
-    // Merge in the `env` object specified in .yarnrc
-    const customEnv = config.getOption('env');
-    if (customEnv && typeof customEnv === 'object') {
-      Object.assign(env, customEnv);
-    }
-
-    env.npm_lifecycle_event = stage;
-    env.npm_node_execpath = env.NODE;
-    env.npm_execpath = env.npm_execpath || process.mainModule && process.mainModule.filename;
-
-    // Set the env to production for npm compat if production mode.
-    // https://github.com/npm/npm/blob/30d75e738b9cb7a6a3f9b50e971adcbe63458ed3/lib/utils/lifecycle.js#L336
-    if (config.production) {
-      env.NODE_ENV = 'production';
-    }
-
-    // Note: npm_config_argv environment variable contains output of nopt - command-line
-    // parser used by npm. Since we use other parser, we just roughly emulate it's output. (See: #684)
-    env.npm_config_argv = JSON.stringify({
-      remain: [],
-      cooked: config.commandName === 'run' ? [config.commandName, stage] : [config.commandName],
-      original: process.argv.slice(2)
-    });
-
-    const manifest = yield config.maybeReadManifest(cwd);
-    if (manifest) {
-      if (manifest.scripts && Object.prototype.hasOwnProperty.call(manifest.scripts, stage)) {
-        env.npm_lifecycle_script = manifest.scripts[stage];
-      }
-
-      // add npm_package_*
-      const queue = [['', manifest]];
-      while (queue.length) {
-        var _queue$pop = queue.pop();
-
-        const key = _queue$pop[0],
-              val = _queue$pop[1];
-
-        if (typeof val === 'object') {
-          for (const subKey in val) {
-            const fullKey = [key, subKey].filter(Boolean).join('_');
-            if (fullKey && fullKey[0] !== '_' && !IGNORE_MANIFEST_KEYS.has(fullKey)) {
-              queue.push([fullKey, val[subKey]]);
-            }
-          }
-        } else {
-          let cleanVal = String(val);
-          if (cleanVal.indexOf('\n') >= 0) {
-            cleanVal = JSON.stringify(cleanVal);
-          }
-
-          //replacing invalid chars with underscore
-          const cleanKey = key.replace(INVALID_CHAR_REGEX, '_');
-
-          env[`npm_package_${cleanKey}`] = cleanVal;
-        }
-      }
-    }
-
-    // add npm_config_* and npm_package_config_* from yarn config
-    const keys = new Set([...Object.keys(config.registries.yarn.config), ...Object.keys(config.registries.npm.config)]);
-    const cleaned = Array.from(keys).filter(function (key) {
-      return !key.match(/:_/) && IGNORE_CONFIG_KEYS.indexOf(key) === -1;
-    }).map(function (key) {
-      let val = config.getOption(key);
-      if (!val) {
-        val = '';
-      } else if (typeof val === 'number') {
-        val = '' + val;
-      } else if (typeof val !== 'string') {
-        val = JSON.stringify(val);
-      }
-
-      if (val.indexOf('\n') >= 0) {
-        val = JSON.stringify(val);
-      }
-      return [key, val];
-    });
-    // add npm_config_*
-    for (var _iterator = cleaned, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref4 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref4 = _i.value;
-      }
-
-      const _ref3 = _ref4;
-      const key = _ref3[0];
-      const val = _ref3[1];
-
-      const cleanKey = key.replace(/^_+/, '');
-      const envKey = `npm_config_${cleanKey}`.replace(INVALID_CHAR_REGEX, '_');
-      env[envKey] = val;
-    }
-    // add npm_package_config_*
-    if (manifest && manifest.name) {
-      const packageConfigPrefix = `${manifest.name}:`;
-      for (var _iterator2 = cleaned, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref6 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref6 = _i2.value;
-        }
-
-        const _ref5 = _ref6;
-        const key = _ref5[0];
-        const val = _ref5[1];
-
-        if (key.indexOf(packageConfigPrefix) !== 0) {
-          continue;
-        }
-        const cleanKey = key.replace(/^_+/, '').replace(packageConfigPrefix, '');
-        const envKey = `npm_package_config_${cleanKey}`.replace(INVALID_CHAR_REGEX, '_');
-        env[envKey] = val;
-      }
-    }
-
-    // split up the path
-    const envPath = env[(_constants || _load_constants()).ENV_PATH_KEY];
-    const pathParts = envPath ? envPath.split(path.delimiter) : [];
-
-    // Include node-gyp version that was bundled with the current Node.js version,
-    // if available.
-    pathParts.unshift(path.join(path.dirname(process.execPath), 'node_modules', 'npm', 'bin', 'node-gyp-bin'));
-    pathParts.unshift(path.join(path.dirname(process.execPath), '..', 'lib', 'node_modules', 'npm', 'bin', 'node-gyp-bin'));
-    // Include node-gyp version from homebrew managed npm, if available.
-    pathParts.unshift(path.join(path.dirname(process.execPath), '..', 'libexec', 'lib', 'node_modules', 'npm', 'bin', 'node-gyp-bin'));
-
-    // Add global bin folder if it is not present already, as some packages depend
-    // on a globally-installed version of node-gyp.
-    const globalBin = yield (0, (_global || _load_global()).getBinFolder)(config, {});
-    if (pathParts.indexOf(globalBin) === -1) {
-      pathParts.unshift(globalBin);
-    }
-
-    // Add node_modules .bin folders to the PATH
-    for (var _iterator3 = config.registryFolders, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref7 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref7 = _i3.value;
-      }
-
-      const registryFolder = _ref7;
-
-      const binFolder = path.join(registryFolder, '.bin');
-      if (config.workspacesEnabled && config.workspaceRootFolder) {
-        pathParts.unshift(path.join(config.workspaceRootFolder, binFolder));
-      }
-      pathParts.unshift(path.join(config.linkFolder, binFolder));
-      pathParts.unshift(path.join(cwd, binFolder));
-    }
-
-    let pnpFile;
-
-    if (process.versions.pnp) {
-      pnpFile = (_dynamicRequire || _load_dynamicRequire()).dynamicRequire.resolve('pnpapi');
-    } else {
-      const candidate = `${config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`;
-      if (yield (_fs || _load_fs()).exists(candidate)) {
-        pnpFile = candidate;
-      }
-    }
-
-    if (pnpFile) {
-      const pnpApi = (0, (_dynamicRequire || _load_dynamicRequire()).dynamicRequire)(pnpFile);
-
-      const packageLocator = pnpApi.findPackageLocator(`${cwd}/`);
-      const packageInformation = pnpApi.getPackageInformation(packageLocator);
-
-      for (var _iterator4 = packageInformation.packageDependencies.entries(), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref9;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref9 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref9 = _i4.value;
-        }
-
-        const _ref8 = _ref9;
-        const name = _ref8[0];
-        const reference = _ref8[1];
-
-        const dependencyInformation = pnpApi.getPackageInformation({ name, reference });
-
-        if (!dependencyInformation || !dependencyInformation.packageLocation) {
-          continue;
-        }
-
-        const binFolder = `${dependencyInformation.packageLocation}/.bin`;
-        if (yield (_fs || _load_fs()).exists(binFolder)) {
-          pathParts.unshift(binFolder);
-        }
-      }
-
-      // Note that NODE_OPTIONS doesn't support any style of quoting its arguments at the moment
-      // For this reason, it won't work if the user has a space inside its $PATH
-      env.NODE_OPTIONS = env.NODE_OPTIONS || '';
-      env.NODE_OPTIONS = `--require ${pnpFile} ${env.NODE_OPTIONS}`;
-    }
-
-    pathParts.unshift((yield getWrappersFolder(config)));
-
-    // join path back together
-    env[(_constants || _load_constants()).ENV_PATH_KEY] = pathParts.join(path.delimiter);
-
-    return env;
-  });
-
-  return function makeEnv(_x2, _x3, _x4) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let executeLifecycleScript = exports.executeLifecycleScript = (() => {
-  var _ref10 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({
-    stage,
-    config,
-    cwd,
-    cmd,
-    isInteractive,
-    onProgress,
-    customShell
-  }) {
-    const env = yield makeEnv(stage, cwd, config);
-
-    yield checkForGypIfNeeded(config, cmd, env[(_constants || _load_constants()).ENV_PATH_KEY].split(path.delimiter));
-
-    if (process.platform === 'win32' && (!customShell || customShell === 'cmd')) {
-      // handle windows run scripts starting with a relative path
-      cmd = (0, (_fixCmdWinSlashes || _load_fixCmdWinSlashes()).fixCmdWinSlashes)(cmd);
-    }
-
-    // By default (non-interactive), pipe everything to the terminal and run child process detached
-    // as long as it's not Windows (since windows does not have /dev/tty)
-    let stdio = ['ignore', 'pipe', 'pipe'];
-    let detached = process.platform !== 'win32';
-
-    if (isInteractive) {
-      stdio = 'inherit';
-      detached = false;
-    }
-
-    const shell = customShell || true;
-    const stdout = yield (_child || _load_child()).spawn(cmd, [], { cwd, env, stdio, detached, shell }, onProgress);
-
-    return { cwd, command: cmd, stdout };
-  });
-
-  return function executeLifecycleScript(_x5) {
-    return _ref10.apply(this, arguments);
-  };
-})();
-
-let _checkForGyp = (() => {
-  var _ref11 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, paths) {
-    const reporter = config.reporter;
-
-    // Check every directory in the PATH
-
-    const allChecks = yield Promise.all(paths.map(function (dir) {
-      return (_fs || _load_fs()).exists(path.join(dir, 'node-gyp'));
-    }));
-    if (allChecks.some(Boolean)) {
-      // node-gyp is available somewhere
-      return;
-    }
-
-    reporter.info(reporter.lang('packageRequiresNodeGyp'));
-
-    try {
-      yield (0, (_global || _load_global()).run)(config, reporter, {}, ['add', 'node-gyp']);
-    } catch (e) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('nodeGypAutoInstallFailed', e.message));
-    }
-  });
-
-  return function _checkForGyp(_x6, _x7) {
-    return _ref11.apply(this, arguments);
-  };
-})();
-
-let execFromManifest = exports.execFromManifest = (() => {
-  var _ref12 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, commandName, cwd) {
-    const pkg = yield config.maybeReadManifest(cwd);
-    if (!pkg || !pkg.scripts) {
-      return;
-    }
-
-    const cmd = pkg.scripts[commandName];
-    if (cmd) {
-      yield execCommand({ stage: commandName, config, cmd, cwd, isInteractive: true });
-    }
-  });
-
-  return function execFromManifest(_x8, _x9, _x10) {
-    return _ref12.apply(this, arguments);
-  };
-})();
-
-let execCommand = exports.execCommand = (() => {
-  var _ref13 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({
-    stage,
-    config,
-    cmd,
-    cwd,
-    isInteractive,
-    customShell
-  }) {
-    const reporter = config.reporter;
-
-    try {
-      reporter.command(cmd);
-      yield executeLifecycleScript({ stage, config, cwd, cmd, isInteractive, customShell });
-      return Promise.resolve();
-    } catch (err) {
-      if (err instanceof (_errors || _load_errors()).ProcessTermError) {
-        const formattedError = new (_errors || _load_errors()).ProcessTermError(err.EXIT_SIGNAL ? reporter.lang('commandFailedWithSignal', err.EXIT_SIGNAL) : reporter.lang('commandFailedWithCode', err.EXIT_CODE));
-        formattedError.EXIT_CODE = err.EXIT_CODE;
-        formattedError.EXIT_SIGNAL = err.EXIT_SIGNAL;
-        throw formattedError;
-      } else {
-        throw err;
-      }
-    }
-  });
-
-  return function execCommand(_x11) {
-    return _ref13.apply(this, arguments);
-  };
-})();
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _dynamicRequire;
-
-function _load_dynamicRequire() {
-  return _dynamicRequire = __webpack_require__(371);
-}
-
-var _portableScript;
-
-function _load_portableScript() {
-  return _portableScript = __webpack_require__(589);
-}
-
-var _fixCmdWinSlashes;
-
-function _load_fixCmdWinSlashes() {
-  return _fixCmdWinSlashes = __webpack_require__(578);
-}
-
-var _global;
-
-function _load_global() {
-  return _global = __webpack_require__(121);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-const IGNORE_MANIFEST_KEYS = exports.IGNORE_MANIFEST_KEYS = new Set(['readme', 'notice', 'licenseText', 'activationEvents', 'contributes']);
-
-// We treat these configs as internal, thus not expose them to process.env.
-// This helps us avoid some gyp issues when building native modules.
-// See https://github.com/yarnpkg/yarn/issues/2286.
-const IGNORE_CONFIG_KEYS = ['lastUpdateCheck'];
-
-let wrappersFolder = null;
-
-const INVALID_CHAR_REGEX = /\W/g;
-
-exports.default = executeLifecycleScript;
-
-
-let checkGypPromise = null;
-/**
- * Special case: Some packages depend on node-gyp, but don't specify this in
- * their package.json dependencies. They assume that node-gyp is available
- * globally. We need to detect this case and show an error message.
- */
-function checkForGypIfNeeded(config, cmd, paths) {
-  if (cmd.substr(0, cmd.indexOf(' ')) !== 'node-gyp') {
-    return Promise.resolve();
-  }
-
-  // Ensure this only runs once, rather than multiple times in parallel.
-  if (!checkGypPromise) {
-    checkGypPromise = _checkForGyp(config, paths);
-  }
-  return checkGypPromise;
-}
-
-/***/ }),
-/* 112 */
-/***/ (function(module, exports) {
-
-module.exports = function (exec) {
-  try {
-    return !!exec();
-  } catch (e) {
-    return true;
-  }
-};
-
-
-/***/ }),
-/* 113 */
-/***/ (function(module, exports) {
-
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// NOTE: These type checking functions intentionally don't use `instanceof`
-// because it is fragile and can be easily faked with `Object.create()`.
-
-function isArray(arg) {
-  if (Array.isArray) {
-    return Array.isArray(arg);
-  }
-  return objectToString(arg) === '[object Array]';
-}
-exports.isArray = isArray;
-
-function isBoolean(arg) {
-  return typeof arg === 'boolean';
-}
-exports.isBoolean = isBoolean;
-
-function isNull(arg) {
-  return arg === null;
-}
-exports.isNull = isNull;
-
-function isNullOrUndefined(arg) {
-  return arg == null;
-}
-exports.isNullOrUndefined = isNullOrUndefined;
-
-function isNumber(arg) {
-  return typeof arg === 'number';
-}
-exports.isNumber = isNumber;
-
-function isString(arg) {
-  return typeof arg === 'string';
-}
-exports.isString = isString;
-
-function isSymbol(arg) {
-  return typeof arg === 'symbol';
-}
-exports.isSymbol = isSymbol;
-
-function isUndefined(arg) {
-  return arg === void 0;
-}
-exports.isUndefined = isUndefined;
-
-function isRegExp(re) {
-  return objectToString(re) === '[object RegExp]';
-}
-exports.isRegExp = isRegExp;
-
-function isObject(arg) {
-  return typeof arg === 'object' && arg !== null;
-}
-exports.isObject = isObject;
-
-function isDate(d) {
-  return objectToString(d) === '[object Date]';
-}
-exports.isDate = isDate;
-
-function isError(e) {
-  return (objectToString(e) === '[object Error]' || e instanceof Error);
-}
-exports.isError = isError;
-
-function isFunction(arg) {
-  return typeof arg === 'function';
-}
-exports.isFunction = isFunction;
-
-function isPrimitive(arg) {
-  return arg === null ||
-         typeof arg === 'boolean' ||
-         typeof arg === 'number' ||
-         typeof arg === 'string' ||
-         typeof arg === 'symbol' ||  // ES6 symbol
-         typeof arg === 'undefined';
-}
-exports.isPrimitive = isPrimitive;
-
-exports.isBuffer = Buffer.isBuffer;
-
-function objectToString(o) {
-  return Object.prototype.toString.call(o);
-}
-
-
-/***/ }),
-/* 114 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * micromatch <https://github.com/jonschlinkert/micromatch>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var expand = __webpack_require__(753);
-var utils = __webpack_require__(300);
-
-/**
- * The main function. Pass an array of filepaths,
- * and a string or array of glob patterns
- *
- * @param  {Array|String} `files`
- * @param  {Array|String} `patterns`
- * @param  {Object} `opts`
- * @return {Array} Array of matches
- */
-
-function micromatch(files, patterns, opts) {
-  if (!files || !patterns) return [];
-  opts = opts || {};
-
-  if (typeof opts.cache === 'undefined') {
-    opts.cache = true;
-  }
-
-  if (!Array.isArray(patterns)) {
-    return match(files, patterns, opts);
-  }
-
-  var len = patterns.length, i = 0;
-  var omit = [], keep = [];
-
-  while (len--) {
-    var glob = patterns[i++];
-    if (typeof glob === 'string' && glob.charCodeAt(0) === 33 /* ! */) {
-      omit.push.apply(omit, match(files, glob.slice(1), opts));
-    } else {
-      keep.push.apply(keep, match(files, glob, opts));
-    }
-  }
-  return utils.diff(keep, omit);
-}
-
-/**
- * Return an array of files that match the given glob pattern.
- *
- * This function is called by the main `micromatch` function If you only
- * need to pass a single pattern you might get very minor speed improvements
- * using this function.
- *
- * @param  {Array} `files`
- * @param  {String} `pattern`
- * @param  {Object} `options`
- * @return {Array}
- */
-
-function match(files, pattern, opts) {
-  if (utils.typeOf(files) !== 'string' && !Array.isArray(files)) {
-    throw new Error(msg('match', 'files', 'a string or array'));
-  }
-
-  files = utils.arrayify(files);
-  opts = opts || {};
-
-  var negate = opts.negate || false;
-  var orig = pattern;
-
-  if (typeof pattern === 'string') {
-    negate = pattern.charAt(0) === '!';
-    if (negate) {
-      pattern = pattern.slice(1);
-    }
-
-    // we need to remove the character regardless,
-    // so the above logic is still needed
-    if (opts.nonegate === true) {
-      negate = false;
-    }
-  }
-
-  var _isMatch = matcher(pattern, opts);
-  var len = files.length, i = 0;
-  var res = [];
-
-  while (i < len) {
-    var file = files[i++];
-    var fp = utils.unixify(file, opts);
-
-    if (!_isMatch(fp)) { continue; }
-    res.push(fp);
-  }
-
-  if (res.length === 0) {
-    if (opts.failglob === true) {
-      throw new Error('micromatch.match() found no matches for: "' + orig + '".');
-    }
-
-    if (opts.nonull || opts.nullglob) {
-      res.push(utils.unescapeGlob(orig));
-    }
-  }
-
-  // if `negate` was defined, diff negated files
-  if (negate) { res = utils.diff(files, res); }
-
-  // if `ignore` was defined, diff ignored filed
-  if (opts.ignore && opts.ignore.length) {
-    pattern = opts.ignore;
-    opts = utils.omit(opts, ['ignore']);
-    res = utils.diff(res, micromatch(res, pattern, opts));
-  }
-
-  if (opts.nodupes) {
-    return utils.unique(res);
-  }
-  return res;
-}
-
-/**
- * Returns a function that takes a glob pattern or array of glob patterns
- * to be used with `Array#filter()`. (Internally this function generates
- * the matching function using the [matcher] method).
- *
- * ```js
- * var fn = mm.filter('[a-c]');
- * ['a', 'b', 'c', 'd', 'e'].filter(fn);
- * //=> ['a', 'b', 'c']
- * ```
- * @param  {String|Array} `patterns` Can be a glob or array of globs.
- * @param  {Options} `opts` Options to pass to the [matcher] method.
- * @return {Function} Filter function to be passed to `Array#filter()`.
- */
-
-function filter(patterns, opts) {
-  if (!Array.isArray(patterns) && typeof patterns !== 'string') {
-    throw new TypeError(msg('filter', 'patterns', 'a string or array'));
-  }
-
-  patterns = utils.arrayify(patterns);
-  var len = patterns.length, i = 0;
-  var patternMatchers = Array(len);
-  while (i < len) {
-    patternMatchers[i] = matcher(patterns[i++], opts);
-  }
-
-  return function(fp) {
-    if (fp == null) return [];
-    var len = patternMatchers.length, i = 0;
-    var res = true;
-
-    fp = utils.unixify(fp, opts);
-    while (i < len) {
-      var fn = patternMatchers[i++];
-      if (!fn(fp)) {
-        res = false;
-        break;
-      }
-    }
-    return res;
-  };
-}
-
-/**
- * Returns true if the filepath contains the given
- * pattern. Can also return a function for matching.
- *
- * ```js
- * isMatch('foo.md', '*.md', {});
- * //=> true
- *
- * isMatch('*.md', {})('foo.md')
- * //=> true
- * ```
- * @param  {String} `fp`
- * @param  {String} `pattern`
- * @param  {Object} `opts`
- * @return {Boolean}
- */
-
-function isMatch(fp, pattern, opts) {
-  if (typeof fp !== 'string') {
-    throw new TypeError(msg('isMatch', 'filepath', 'a string'));
-  }
-
-  fp = utils.unixify(fp, opts);
-  if (utils.typeOf(pattern) === 'object') {
-    return matcher(fp, pattern);
-  }
-  return matcher(pattern, opts)(fp);
-}
-
-/**
- * Returns true if the filepath matches the
- * given pattern.
- */
-
-function contains(fp, pattern, opts) {
-  if (typeof fp !== 'string') {
-    throw new TypeError(msg('contains', 'pattern', 'a string'));
-  }
-
-  opts = opts || {};
-  opts.contains = (pattern !== '');
-  fp = utils.unixify(fp, opts);
-
-  if (opts.contains && !utils.isGlob(pattern)) {
-    return fp.indexOf(pattern) !== -1;
-  }
-  return matcher(pattern, opts)(fp);
-}
-
-/**
- * Returns true if a file path matches any of the
- * given patterns.
- *
- * @param  {String} `fp` The filepath to test.
- * @param  {String|Array} `patterns` Glob patterns to use.
- * @param  {Object} `opts` Options to pass to the `matcher()` function.
- * @return {String}
- */
-
-function any(fp, patterns, opts) {
-  if (!Array.isArray(patterns) && typeof patterns !== 'string') {
-    throw new TypeError(msg('any', 'patterns', 'a string or array'));
-  }
-
-  patterns = utils.arrayify(patterns);
-  var len = patterns.length;
-
-  fp = utils.unixify(fp, opts);
-  while (len--) {
-    var isMatch = matcher(patterns[len], opts);
-    if (isMatch(fp)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Filter the keys of an object with the given `glob` pattern
- * and `options`
- *
- * @param  {Object} `object`
- * @param  {Pattern} `object`
- * @return {Array}
- */
-
-function matchKeys(obj, glob, options) {
-  if (utils.typeOf(obj) !== 'object') {
-    throw new TypeError(msg('matchKeys', 'first argument', 'an object'));
-  }
-
-  var fn = matcher(glob, options);
-  var res = {};
-
-  for (var key in obj) {
-    if (obj.hasOwnProperty(key) && fn(key)) {
-      res[key] = obj[key];
-    }
-  }
-  return res;
-}
-
-/**
- * Return a function for matching based on the
- * given `pattern` and `options`.
- *
- * @param  {String} `pattern`
- * @param  {Object} `options`
- * @return {Function}
- */
-
-function matcher(pattern, opts) {
-  // pattern is a function
-  if (typeof pattern === 'function') {
-    return pattern;
-  }
-  // pattern is a regex
-  if (pattern instanceof RegExp) {
-    return function(fp) {
-      return pattern.test(fp);
-    };
-  }
-
-  if (typeof pattern !== 'string') {
-    throw new TypeError(msg('matcher', 'pattern', 'a string, regex, or function'));
-  }
-
-  // strings, all the way down...
-  pattern = utils.unixify(pattern, opts);
-
-  // pattern is a non-glob string
-  if (!utils.isGlob(pattern)) {
-    return utils.matchPath(pattern, opts);
-  }
-  // pattern is a glob string
-  var re = makeRe(pattern, opts);
-
-  // `matchBase` is defined
-  if (opts && opts.matchBase) {
-    return utils.hasFilename(re, opts);
-  }
-  // `matchBase` is not defined
-  return function(fp) {
-    fp = utils.unixify(fp, opts);
-    return re.test(fp);
-  };
-}
-
-/**
- * Create and cache a regular expression for matching
- * file paths.
- *
- * If the leading character in the `glob` is `!`, a negation
- * regex is returned.
- *
- * @param  {String} `glob`
- * @param  {Object} `options`
- * @return {RegExp}
- */
-
-function toRegex(glob, options) {
-  // clone options to prevent  mutating the original object
-  var opts = Object.create(options || {});
-  var flags = opts.flags || '';
-  if (opts.nocase && flags.indexOf('i') === -1) {
-    flags += 'i';
-  }
-
-  var parsed = expand(glob, opts);
-
-  // pass in tokens to avoid parsing more than once
-  opts.negated = opts.negated || parsed.negated;
-  opts.negate = opts.negated;
-  glob = wrapGlob(parsed.pattern, opts);
-  var re;
-
-  try {
-    re = new RegExp(glob, flags);
-    return re;
-  } catch (err) {
-    err.reason = 'micromatch invalid regex: (' + re + ')';
-    if (opts.strict) throw new SyntaxError(err);
-  }
-
-  // we're only here if a bad pattern was used and the user
-  // passed `options.silent`, so match nothing
-  return /$^/;
-}
-
-/**
- * Create the regex to do the matching. If the leading
- * character in the `glob` is `!` a negation regex is returned.
- *
- * @param {String} `glob`
- * @param {Boolean} `negate`
- */
-
-function wrapGlob(glob, opts) {
-  var prefix = (opts && !opts.contains) ? '^' : '';
-  var after = (opts && !opts.contains) ? '$' : '';
-  glob = ('(?:' + glob + ')' + after);
-  if (opts && opts.negate) {
-    return prefix + ('(?!^' + glob + ').*$');
-  }
-  return prefix + glob;
-}
-
-/**
- * Create and cache a regular expression for matching file paths.
- * If the leading character in the `glob` is `!`, a negation
- * regex is returned.
- *
- * @param  {String} `glob`
- * @param  {Object} `options`
- * @return {RegExp}
- */
-
-function makeRe(glob, opts) {
-  if (utils.typeOf(glob) !== 'string') {
-    throw new Error(msg('makeRe', 'glob', 'a string'));
-  }
-  return utils.cache(toRegex, glob, opts);
-}
-
-/**
- * Make error messages consistent. Follows this format:
- *
- * ```js
- * msg(methodName, argNumber, nativeType);
- * // example:
- * msg('matchKeys', 'first', 'an object');
- * ```
- *
- * @param  {String} `method`
- * @param  {String} `num`
- * @param  {String} `type`
- * @return {String}
- */
-
-function msg(method, what, type) {
-  return 'micromatch.' + method + '(): ' + what + ' should be ' + type + '.';
-}
-
-/**
- * Public methods
- */
-
-/* eslint no-multi-spaces: 0 */
-micromatch.any       = any;
-micromatch.braces    = micromatch.braceExpand = utils.braces;
-micromatch.contains  = contains;
-micromatch.expand    = expand;
-micromatch.filter    = filter;
-micromatch.isMatch   = isMatch;
-micromatch.makeRe    = makeRe;
-micromatch.match     = match;
-micromatch.matcher   = matcher;
-micromatch.matchKeys = matchKeys;
-
-/**
- * Expose `micromatch`
- */
-
-module.exports = micromatch;
-
-
-/***/ }),
-/* 115 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a duplex stream is just a stream that is both readable and writable.
-// Since JS doesn't have multiple prototypal inheritance, this class
-// prototypally inherits from Readable, and then parasitically from
-// Writable.
-
-
-
-/*<replacement>*/
-
-var pna = __webpack_require__(180);
-/*</replacement>*/
-
-/*<replacement>*/
-var objectKeys = Object.keys || function (obj) {
-  var keys = [];
-  for (var key in obj) {
-    keys.push(key);
-  }return keys;
-};
-/*</replacement>*/
-
-module.exports = Duplex;
-
-/*<replacement>*/
-var util = __webpack_require__(113);
-util.inherits = __webpack_require__(61);
-/*</replacement>*/
-
-var Readable = __webpack_require__(406);
-var Writable = __webpack_require__(408);
-
-util.inherits(Duplex, Readable);
-
-{
-  // avoid scope creep, the keys array can then be collected
-  var keys = objectKeys(Writable.prototype);
-  for (var v = 0; v < keys.length; v++) {
-    var method = keys[v];
-    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
-  }
-}
-
-function Duplex(options) {
-  if (!(this instanceof Duplex)) return new Duplex(options);
-
-  Readable.call(this, options);
-  Writable.call(this, options);
-
-  if (options && options.readable === false) this.readable = false;
-
-  if (options && options.writable === false) this.writable = false;
-
-  this.allowHalfOpen = true;
-  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;
-
-  this.once('end', onend);
-}
-
-Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._writableState.highWaterMark;
-  }
-});
-
-// the no-half-open enforcer
-function onend() {
-  // if we allow half-open state, or if the writable side ended,
-  // then we're ok.
-  if (this.allowHalfOpen || this._writableState.ended) return;
-
-  // no more data can be written.
-  // But allow more writes to happen in this tick.
-  pna.nextTick(onEndNT, this);
-}
-
-function onEndNT(self) {
-  self.end();
-}
-
-Object.defineProperty(Duplex.prototype, 'destroyed', {
-  get: function () {
-    if (this._readableState === undefined || this._writableState === undefined) {
-      return false;
-    }
-    return this._readableState.destroyed && this._writableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (this._readableState === undefined || this._writableState === undefined) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._readableState.destroyed = value;
-    this._writableState.destroyed = value;
-  }
-});
-
-Duplex.prototype._destroy = function (err, cb) {
-  this.push(null);
-  this.end();
-
-  pna.nextTick(cb, err);
-};
-
-/***/ }),
-/* 116 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = multicast;
-/* unused harmony export MulticastOperator */
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__observable_ConnectableObservable__ = __webpack_require__(423);
-/** PURE_IMPORTS_START _observable_ConnectableObservable PURE_IMPORTS_END */
-
-function multicast(subjectOrSubjectFactory, selector) {
-    return function multicastOperatorFunction(source) {
-        var subjectFactory;
-        if (typeof subjectOrSubjectFactory === 'function') {
-            subjectFactory = subjectOrSubjectFactory;
-        }
-        else {
-            subjectFactory = function subjectFactory() {
-                return subjectOrSubjectFactory;
-            };
-        }
-        if (typeof selector === 'function') {
-            return source.lift(new MulticastOperator(subjectFactory, selector));
-        }
-        var connectable = Object.create(source, __WEBPACK_IMPORTED_MODULE_0__observable_ConnectableObservable__["b" /* connectableObservableDescriptor */]);
-        connectable.source = source;
-        connectable.subjectFactory = subjectFactory;
-        return connectable;
-    };
-}
-var MulticastOperator = /*@__PURE__*/ (function () {
-    function MulticastOperator(subjectFactory, selector) {
-        this.subjectFactory = subjectFactory;
-        this.selector = selector;
-    }
-    MulticastOperator.prototype.call = function (subscriber, source) {
-        var selector = this.selector;
-        var subject = this.subjectFactory();
-        var subscription = selector(subject).subscribe(subscriber);
-        subscription.add(source.subscribe(subject));
-        return subscription;
-    };
-    return MulticastOperator;
-}());
-
-//# sourceMappingURL=multicast.js.map
-
-
-/***/ }),
-/* 117 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return observable; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-var observable = typeof Symbol === 'function' && Symbol.observable || '@@observable';
-//# sourceMappingURL=observable.js.map
-
-
-/***/ }),
-/* 118 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = identity;
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function identity(x) {
-    return x;
-}
-//# sourceMappingURL=identity.js.map
-
-
-/***/ }),
-/* 119 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var v1 = __webpack_require__(957);
-var v4 = __webpack_require__(958);
-
-var uuid = v4;
-uuid.v1 = v1;
-uuid.v4 = v4;
-
-module.exports = uuid;
-
-
-/***/ }),
-/* 120 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getInstallationMethod = exports.version = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getInstallationMethod = exports.getInstallationMethod = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-    let installationMethod = originalInstallationMethod;
-
-    // If there's a package.json in the parent directory, it could have an
-    // override for the installation method, so we should prefer that over
-    // whatever was originally in Yarn's package.json. This is the case with
-    // systems such as Homebrew, which take the tarball and modify the
-    // installation method so we're aware of the fact that Yarn was installed via
-    // Homebrew (so things like update notifications can point out the correct
-    // command to upgrade).
-    try {
-      const manifestPath = (_path || _load_path()).default.join(__dirname, '..', 'package.json');
-      if ((_fs2 || _load_fs2()).default.existsSync(manifestPath)) {
-        // non-async version is deprecated
-        const manifest = yield (0, (_fs || _load_fs()).readJson)(manifestPath);
-        if (manifest.installationMethod) {
-          installationMethod = manifest.installationMethod;
-        }
-      }
-    } catch (e) {
-      // Ignore any errors; this is not critical functionality.
-    }
-    return installationMethod;
-  });
-
-  return function getInstallationMethod() {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-var _fs;
-
-function _load_fs() {
-  return _fs = __webpack_require__(4);
-}
-
-var _fs2;
-
-function _load_fs2() {
-  return _fs2 = _interopRequireDefault(__webpack_require__(5));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-// This will be bundled directly in the .js file for production builds
-var _require = __webpack_require__(194); /**
-                                               * Determines the current version of Yarn itself.
-                                               * 
-                                               */
-
-const version = _require.version,
-      originalInstallationMethod = _require.installationMethod;
-exports.version = version;
-
-/***/ }),
-/* 121 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.getBinFolder = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let updateCwd = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    yield (_fs || _load_fs()).mkdirp(config.globalFolder);
-
-    yield config.init({
-      cwd: config.globalFolder,
-      offline: config.offline,
-      binLinks: true,
-      globalFolder: config.globalFolder,
-      cacheFolder: config._cacheRootFolder,
-      linkFolder: config.linkFolder,
-      enableDefaultRc: config.enableDefaultRc,
-      extraneousYarnrcFiles: config.extraneousYarnrcFiles
-    });
-  });
-
-  return function updateCwd(_x) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let getBins = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    // build up list of registry folders to search for binaries
-    const dirs = [];
-    for (var _iterator2 = Object.keys((_index || _load_index()).registries), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref4 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref4 = _i2.value;
-      }
-
-      const registryName = _ref4;
-
-      const registry = config.registries[registryName];
-      dirs.push(registry.loc);
-    }
-
-    // build up list of binary files
-    const paths = new Set();
-    for (var _iterator3 = dirs, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref5 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref5 = _i3.value;
-      }
-
-      const dir = _ref5;
-
-      const binDir = path.join(dir, '.bin');
-      if (!(yield (_fs || _load_fs()).exists(binDir))) {
-        continue;
-      }
-
-      for (var _iterator4 = yield (_fs || _load_fs()).readdir(binDir), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref6 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref6 = _i4.value;
-        }
-
-        const name = _ref6;
-
-        paths.add(path.join(binDir, name));
-      }
-    }
-    return paths;
-  });
-
-  return function getBins(_x2) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-let getGlobalPrefix = (() => {
-  var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, flags) {
-    if (flags.prefix) {
-      return flags.prefix;
-    } else if (config.getOption('prefix', true)) {
-      return String(config.getOption('prefix', true));
-    } else if (process.env.PREFIX) {
-      return process.env.PREFIX;
-    }
-
-    const potentialPrefixFolders = [(_constants || _load_constants()).FALLBACK_GLOBAL_PREFIX];
-    if (process.platform === 'win32') {
-      // %LOCALAPPDATA%\Yarn --> C:\Users\Alice\AppData\Local\Yarn
-      if (process.env.LOCALAPPDATA) {
-        potentialPrefixFolders.unshift(path.join(process.env.LOCALAPPDATA, 'Yarn'));
-      }
-    } else {
-      potentialPrefixFolders.unshift((_constants || _load_constants()).POSIX_GLOBAL_PREFIX);
-    }
-
-    const binFolders = potentialPrefixFolders.map(function (prefix) {
-      return path.join(prefix, 'bin');
-    });
-    const prefixFolderQueryResult = yield (_fs || _load_fs()).getFirstSuitableFolder(binFolders);
-    const prefix = prefixFolderQueryResult.folder && path.dirname(prefixFolderQueryResult.folder);
-
-    if (!prefix) {
-      config.reporter.warn(config.reporter.lang('noGlobalFolder', prefixFolderQueryResult.skipped.map(function (item) {
-        return path.dirname(item.folder);
-      }).join(', ')));
-
-      return (_constants || _load_constants()).FALLBACK_GLOBAL_PREFIX;
-    }
-
-    return prefix;
-  });
-
-  return function getGlobalPrefix(_x3, _x4) {
-    return _ref7.apply(this, arguments);
-  };
-})();
-
-let getBinFolder = exports.getBinFolder = (() => {
-  var _ref8 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, flags) {
-    const prefix = yield getGlobalPrefix(config, flags);
-    return path.resolve(prefix, 'bin');
-  });
-
-  return function getBinFolder(_x5, _x6) {
-    return _ref8.apply(this, arguments);
-  };
-})();
-
-let initUpdateBins = (() => {
-  var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags) {
-    const beforeBins = yield getBins(config);
-    const binFolder = yield getBinFolder(config, flags);
-
-    function throwPermError(err, dest) {
-      if (err.code === 'EACCES') {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('noPermission', dest));
-      } else {
-        throw err;
-      }
-    }
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      try {
-        yield (_fs || _load_fs()).mkdirp(binFolder);
-      } catch (err) {
-        throwPermError(err, binFolder);
-      }
-
-      const afterBins = yield getBins(config);
-
-      // remove old bins
-      for (var _iterator5 = beforeBins, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref11;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref11 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref11 = _i5.value;
-        }
-
-        const src = _ref11;
-
-        if (afterBins.has(src)) {
-          // not old
-          continue;
-        }
-
-        // remove old bin
-        const dest = path.join(binFolder, path.basename(src));
-        try {
-          yield (_fs || _load_fs()).unlink(dest);
-        } catch (err) {
-          throwPermError(err, dest);
-        }
-      }
-
-      // add new bins
-      for (var _iterator6 = afterBins, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref12;
-
-        if (_isArray6) {
-          if (_i6 >= _iterator6.length) break;
-          _ref12 = _iterator6[_i6++];
-        } else {
-          _i6 = _iterator6.next();
-          if (_i6.done) break;
-          _ref12 = _i6.value;
-        }
-
-        const src = _ref12;
-
-        // insert new bin
-        const dest = path.join(binFolder, path.basename(src));
-        try {
-          yield (_fs || _load_fs()).unlink(dest);
-          yield (0, (_packageLinker || _load_packageLinker()).linkBin)(src, dest);
-          if (process.platform === 'win32' && dest.indexOf('.cmd') !== -1) {
-            yield (_fs || _load_fs()).rename(dest + '.cmd', dest);
-          }
-        } catch (err) {
-          throwPermError(err, dest);
-        }
-      }
-    });
-  });
-
-  return function initUpdateBins(_x7, _x8, _x9) {
-    return _ref9.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref13 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    yield updateCwd(config);
-
-    // install so we get hard file paths
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.cwd);
-    const install = new (_install || _load_install()).Install({}, config, new (_baseReporter || _load_baseReporter()).default(), lockfile);
-    const patterns = yield install.getFlattenedDeps();
-
-    // dump global modules
-    for (var _iterator7 = patterns, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-      var _ref14;
-
-      if (_isArray7) {
-        if (_i7 >= _iterator7.length) break;
-        _ref14 = _iterator7[_i7++];
-      } else {
-        _i7 = _iterator7.next();
-        if (_i7.done) break;
-        _ref14 = _i7.value;
-      }
-
-      const pattern = _ref14;
-
-      const manifest = install.resolver.getStrictResolvedPattern(pattern);
-      ls(manifest, reporter, false);
-    }
-  });
-
-  return function list(_x10, _x11, _x12, _x13) {
-    return _ref13.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = _interopRequireDefault(__webpack_require__(108));
-}
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _add;
-
-function _load_add() {
-  return _add = __webpack_require__(165);
-}
-
-var _remove;
-
-function _load_remove() {
-  return _remove = __webpack_require__(359);
-}
-
-var _upgrade;
-
-function _load_upgrade() {
-  return _upgrade = __webpack_require__(207);
-}
-
-var _upgradeInteractive;
-
-function _load_upgradeInteractive() {
-  return _upgradeInteractive = __webpack_require__(362);
-}
-
-var _packageLinker;
-
-function _load_packageLinker() {
-  return _packageLinker = __webpack_require__(211);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class GlobalAdd extends (_add || _load_add()).Add {
-  constructor(args, flags, config, reporter, lockfile) {
-    super(args, flags, config, reporter, lockfile);
-
-    this.linker.setTopLevelBinLinking(false);
-  }
-
-  maybeOutputSaveTree() {
-    for (var _iterator = this.addedPatterns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const pattern = _ref;
-
-      const manifest = this.resolver.getStrictResolvedPattern(pattern);
-      ls(manifest, this.reporter, true);
-    }
-    return Promise.resolve();
-  }
-
-  _logSuccessSaveLockfile() {
-    // noop
-  }
-}
-
-const path = __webpack_require__(0);
-
-function hasWrapper(flags, args) {
-  return args[0] !== 'bin' && args[0] !== 'dir';
-}
-
-function ls(manifest, reporter, saved) {
-  const bins = manifest.bin ? Object.keys(manifest.bin) : [];
-  const human = `${manifest.name}@${manifest.version}`;
-  if (bins.length) {
-    if (saved) {
-      reporter.success(reporter.lang('packageInstalledWithBinaries', human));
-    } else {
-      reporter.info(reporter.lang('packageHasBinaries', human));
-    }
-    reporter.list(`bins-${manifest.name}`, bins);
-  } else if (saved) {
-    reporter.warn(reporter.lang('packageHasNoBinaries', human));
-  }
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('global', {
-  add(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield updateCwd(config);
-
-      const updateBins = yield initUpdateBins(config, reporter, flags);
-      if (args.indexOf('yarn') !== -1) {
-        reporter.warn(reporter.lang('packageContainsYarnAsGlobal'));
-      }
-
-      // install module
-      const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.cwd);
-      const install = new GlobalAdd(args, flags, config, reporter, lockfile);
-      yield install.init();
-
-      // link binaries
-      yield updateBins();
-    })();
-  },
-
-  bin(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.log((yield getBinFolder(config, flags)), { force: true });
-    })();
-  },
-
-  dir(config, reporter, flags, args) {
-    reporter.log(config.globalFolder, { force: true });
-    return Promise.resolve();
-  },
-
-  ls(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.warn(`\`yarn global ls\` is deprecated. Please use \`yarn global list\`.`);
-      yield list(config, reporter, flags, args);
-    })();
-  },
-
-  list(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield list(config, reporter, flags, args);
-    })();
-  },
-
-  remove(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield updateCwd(config);
-
-      const updateBins = yield initUpdateBins(config, reporter, flags);
-
-      // remove module
-      yield (0, (_remove || _load_remove()).run)(config, reporter, flags, args);
-
-      // remove binaries
-      yield updateBins();
-    })();
-  },
-
-  upgrade(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield updateCwd(config);
-
-      const updateBins = yield initUpdateBins(config, reporter, flags);
-
-      // upgrade module
-      yield (0, (_upgrade || _load_upgrade()).run)(config, reporter, flags, args);
-
-      // update binaries
-      yield updateBins();
-    })();
-  },
-
-  upgradeInteractive(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield updateCwd(config);
-
-      const updateBins = yield initUpdateBins(config, reporter, flags);
-
-      // upgrade module
-      yield (0, (_upgradeInteractive || _load_upgradeInteractive()).run)(config, reporter, flags, args);
-
-      // update binaries
-      yield updateBins();
-    })();
-  }
-});
-
-const run = _buildSubCommands.run,
-      _setFlags = _buildSubCommands.setFlags;
-exports.run = run;
-function setFlags(commander) {
-  _setFlags(commander);
-  commander.description('Installs packages globally on your operating system.');
-  commander.option('--prefix <prefix>', 'bin prefix to use to install binaries');
-  commander.option('--latest', 'upgrade to the latest version of packages');
-}
-
-/***/ }),
-/* 122 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-var _validate;
-
-function _load_validate() {
-  return _validate = __webpack_require__(125);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _packageReference;
-
-function _load_packageReference() {
-  return _packageReference = _interopRequireDefault(__webpack_require__(365));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _version;
-
-function _load_version() {
-  return _version = _interopRequireWildcard(__webpack_require__(226));
-}
-
-var _workspaceResolver;
-
-function _load_workspaceResolver() {
-  return _workspaceResolver = _interopRequireDefault(__webpack_require__(570));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _normalizePattern4;
-
-function _load_normalizePattern() {
-  return _normalizePattern4 = __webpack_require__(37);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const micromatch = __webpack_require__(114);
-
-class PackageRequest {
-  constructor(req, resolver) {
-    this.parentRequest = req.parentRequest;
-    this.parentNames = req.parentNames || [];
-    this.lockfile = resolver.lockfile;
-    this.registry = req.registry;
-    this.reporter = resolver.reporter;
-    this.resolver = resolver;
-    this.optional = req.optional;
-    this.hint = req.hint;
-    this.pattern = req.pattern;
-    this.config = resolver.config;
-    this.foundInfo = null;
-  }
-
-  init() {
-    this.resolver.usedRegistries.add(this.registry);
-  }
-
-  getLocked(remoteType) {
-    // always prioritise root lockfile
-    const shrunk = this.lockfile.getLocked(this.pattern);
-
-    if (shrunk && shrunk.resolved) {
-      const resolvedParts = (_version || _load_version()).explodeHashedUrl(shrunk.resolved);
-
-      // Detect Git protocols (git://HOST/PATH or git+PROTOCOL://HOST/PATH)
-      const preferredRemoteType = /^git(\+[a-z0-9]+)?:\/\//.test(resolvedParts.url) ? 'git' : remoteType;
-
-      return {
-        name: shrunk.name,
-        version: shrunk.version,
-        _uid: shrunk.uid,
-        _remote: {
-          resolved: shrunk.resolved,
-          type: preferredRemoteType,
-          reference: resolvedParts.url,
-          hash: resolvedParts.hash,
-          integrity: shrunk.integrity,
-          registry: shrunk.registry,
-          packageName: shrunk.name
-        },
-        optionalDependencies: shrunk.optionalDependencies || {},
-        dependencies: shrunk.dependencies || {},
-        prebuilt2Variants: shrunk.prebuilt2Variants || {}
-      };
-    } else {
-      return null;
-    }
-  }
-
-  /**
-   * If the input pattern matches a registry one then attempt to find it on the registry.
-   * Otherwise fork off to an exotic resolver if one matches.
-   */
-
-  findVersionOnRegistry(pattern) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _ref = yield _this.normalize(pattern);
-
-      const range = _ref.range,
-            name = _ref.name;
-
-
-      const exoticResolver = (0, (_index || _load_index()).getExoticResolver)(range);
-      if (exoticResolver) {
-        let data = yield _this.findExoticVersionInfo(exoticResolver, range);
-
-        // clone data as we're manipulating it in place and this could be resolved multiple
-        // times
-        data = Object.assign({}, data);
-
-        // this is so the returned package response uses the overridden name. ie. if the
-        // package's actual name is `bar`, but it's been specified in the manifest like:
-        //   "foo": "http://foo.com/bar.tar.gz"
-        // then we use the foo name
-        data.name = name;
-        return data;
-      }
-
-      const Resolver = _this.getRegistryResolver();
-      const resolver = new Resolver(_this, name, range);
-      try {
-        return yield resolver.resolve();
-      } catch (err) {
-        // if it is not an error thrown by yarn and it has a parent request,
-        // thow a more readable error
-        if (!(err instanceof (_errors || _load_errors()).MessageError) && _this.parentRequest && _this.parentRequest.pattern) {
-          throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('requiredPackageNotFoundRegistry', pattern, _this.parentRequest.pattern, _this.registry));
-        }
-        throw err;
-      }
-    })();
-  }
-
-  /**
-   * Get the registry resolver associated with this package request.
-   */
-
-  getRegistryResolver() {
-    const Resolver = (_index || _load_index()).registries[this.registry];
-    if (Resolver) {
-      return Resolver;
-    } else {
-      throw new (_errors || _load_errors()).MessageError(this.reporter.lang('unknownRegistryResolver', this.registry));
-    }
-  }
-
-  normalizeRange(pattern) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (pattern.indexOf(':') > -1 || pattern.indexOf('@') > -1 || (0, (_index || _load_index()).getExoticResolver)(pattern)) {
-        return pattern;
-      }
-
-      if (!(_semver || _load_semver()).default.validRange(pattern)) {
-        try {
-          if (yield (_fs || _load_fs()).exists((_path || _load_path()).default.join(_this2.config.cwd, pattern, (_constants || _load_constants()).NODE_PACKAGE_JSON))) {
-            _this2.reporter.warn(_this2.reporter.lang('implicitFileDeprecated', pattern));
-            return `file:${pattern}`;
-          }
-        } catch (err) {
-          // pass
-        }
-      }
-
-      return pattern;
-    })();
-  }
-
-  normalize(pattern) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _normalizePattern = (0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(pattern);
-
-      const name = _normalizePattern.name,
-            range = _normalizePattern.range,
-            hasVersion = _normalizePattern.hasVersion;
-
-      const newRange = yield _this3.normalizeRange(range);
-      return { name, range: newRange, hasVersion };
-    })();
-  }
-
-  /**
-   * Construct an exotic resolver instance with the input `ExoticResolver` and `range`.
-   */
-
-  findExoticVersionInfo(ExoticResolver, range) {
-    const resolver = new ExoticResolver(this, range);
-    return resolver.resolve();
-  }
-
-  /**
-   * If the current pattern matches an exotic resolver then delegate to it or else try
-   * the registry.
-   */
-
-  findVersionInfo() {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const exoticResolver = (0, (_index || _load_index()).getExoticResolver)(_this4.pattern);
-      if (exoticResolver) {
-        return _this4.findExoticVersionInfo(exoticResolver, _this4.pattern);
-      } else if ((_workspaceResolver || _load_workspaceResolver()).default.isWorkspace(_this4.pattern, _this4.resolver.workspaceLayout)) {
-        (0, (_invariant || _load_invariant()).default)(_this4.resolver.workspaceLayout, 'expected workspaceLayout');
-        const resolver = new (_workspaceResolver || _load_workspaceResolver()).default(_this4, _this4.pattern, _this4.resolver.workspaceLayout);
-        let manifest;
-        if (_this4.config.focus && !_this4.pattern.includes(_this4.resolver.workspaceLayout.virtualManifestName) && !_this4.pattern.startsWith(_this4.config.focusedWorkspaceName + '@')) {
-          const localInfo = _this4.resolver.workspaceLayout.getManifestByPattern(_this4.pattern);
-          (0, (_invariant || _load_invariant()).default)(localInfo, 'expected local info for ' + _this4.pattern);
-          const localManifest = localInfo.manifest;
-          const requestPattern = localManifest.name + '@' + localManifest.version;
-          manifest = yield _this4.findVersionOnRegistry(requestPattern);
-        }
-        return resolver.resolve(manifest);
-      } else {
-        return _this4.findVersionOnRegistry(_this4.pattern);
-      }
-    })();
-  }
-
-  reportResolvedRangeMatch(info, resolved) {}
-
-  /**
-   * Do the final resolve of a package that had a match with an existing version.
-   * After all unique versions have been discovered, so the best available version
-   * is found.
-   */
-  resolveToExistingVersion(info) {
-    // get final resolved version
-    var _normalizePattern2 = (0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern2.range,
-          name = _normalizePattern2.name;
-
-    const solvedRange = (_semver || _load_semver()).default.validRange(range) ? info.version : range;
-    const resolved = this.resolver.getHighestRangeVersionMatch(name, solvedRange, info);
-    (0, (_invariant || _load_invariant()).default)(resolved, 'should have a resolved reference');
-
-    this.reportResolvedRangeMatch(info, resolved);
-    const ref = resolved._reference;
-    (0, (_invariant || _load_invariant()).default)(ref, 'Resolved package info has no package reference');
-    ref.addRequest(this);
-    ref.addPattern(this.pattern, resolved);
-    ref.addOptional(this.optional);
-  }
-
-  /**
-   * TODO description
-   */
-  find({ fresh, frozen }) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // find version info for this package pattern
-      const info = yield _this5.findVersionInfo();
-
-      if (!(_semver || _load_semver()).default.valid(info.version)) {
-        throw new (_errors || _load_errors()).MessageError(_this5.reporter.lang('invalidPackageVersion', info.name, info.version));
-      }
-
-      info.fresh = fresh;
-      (0, (_validate || _load_validate()).cleanDependencies)(info, false, _this5.reporter, function () {
-        // swallow warnings
-      });
-
-      // check if while we were resolving this dep we've already resolved one that satisfies
-      // the same range
-
-      var _normalizePattern3 = (0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(_this5.pattern);
-
-      const range = _normalizePattern3.range,
-            name = _normalizePattern3.name;
-
-      const solvedRange = (_semver || _load_semver()).default.validRange(range) ? info.version : range;
-      const resolved = !info.fresh || frozen ? _this5.resolver.getExactVersionMatch(name, solvedRange, info) : _this5.resolver.getHighestRangeVersionMatch(name, solvedRange, info);
-
-      if (resolved) {
-        _this5.resolver.reportPackageWithExistingVersion(_this5, info);
-        return;
-      }
-
-      if (info.flat && !_this5.resolver.flat) {
-        throw new (_errors || _load_errors()).MessageError(_this5.reporter.lang('flatGlobalError', `${info.name}@${info.version}`));
-      }
-
-      // validate version info
-      PackageRequest.validateVersionInfo(info, _this5.reporter);
-
-      //
-      const remote = info._remote;
-      (0, (_invariant || _load_invariant()).default)(remote, 'Missing remote');
-
-      // set package reference
-      const ref = new (_packageReference || _load_packageReference()).default(_this5, info, remote);
-      ref.addPattern(_this5.pattern, info);
-      ref.addOptional(_this5.optional);
-      ref.setFresh(fresh);
-      info._reference = ref;
-      info._remote = remote;
-      // start installation of dependencies
-      const promises = [];
-      const deps = [];
-      const parentNames = [..._this5.parentNames, name];
-      // normal deps
-      for (const depName in info.dependencies) {
-        const depPattern = depName + '@' + info.dependencies[depName];
-        deps.push(depPattern);
-        promises.push(_this5.resolver.find({
-          pattern: depPattern,
-          registry: remote.registry,
-          // dependencies of optional dependencies should themselves be optional
-          optional: _this5.optional,
-          parentRequest: _this5,
-          parentNames
-        }));
-      }
-
-      // optional deps
-      for (const depName in info.optionalDependencies) {
-        const depPattern = depName + '@' + info.optionalDependencies[depName];
-        deps.push(depPattern);
-        promises.push(_this5.resolver.find({
-          hint: 'optional',
-          pattern: depPattern,
-          registry: remote.registry,
-          optional: true,
-          parentRequest: _this5,
-          parentNames
-        }));
-      }
-      if (remote.type === 'workspace' && !_this5.config.production) {
-        // workspaces support dev dependencies
-        for (const depName in info.devDependencies) {
-          const depPattern = depName + '@' + info.devDependencies[depName];
-          deps.push(depPattern);
-          promises.push(_this5.resolver.find({
-            hint: 'dev',
-            pattern: depPattern,
-            registry: remote.registry,
-            optional: false,
-            parentRequest: _this5,
-            parentNames
-          }));
-        }
-      }
-
-      for (var _iterator = promises, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref2 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref2 = _i.value;
-        }
-
-        const promise = _ref2;
-
-        yield promise;
-      }
-
-      ref.addDependencies(deps);
-
-      // Now that we have all dependencies, it's safe to propagate optional
-      for (var _iterator2 = ref.requests.slice(1), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const otherRequest = _ref3;
-
-        ref.addOptional(otherRequest.optional);
-      }
-    })();
-  }
-
-  /**
-   * TODO description
-   */
-
-  static validateVersionInfo(info, reporter) {
-    // human readable name to use in errors
-    const human = `${info.name}@${info.version}`;
-
-    info.version = PackageRequest.getPackageVersion(info);
-
-    for (var _iterator3 = (_constants || _load_constants()).REQUIRED_PACKAGE_KEYS, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref4 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref4 = _i3.value;
-      }
-
-      const key = _ref4;
-
-      if (!info[key]) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('missingRequiredPackageKey', human, key));
-      }
-    }
-  }
-
-  /**
-   * Returns the package version if present, else defaults to the uid
-   */
-
-  static getPackageVersion(info) {
-    // TODO possibly reconsider this behaviour
-    return info.version === undefined ? info._uid : info.version;
-  }
-
-  /**
-   * Gets all of the outdated packages and sorts them appropriately
-   */
-
-  static getOutdatedPackages(lockfile, install, config, reporter, filterByPatterns, flags) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _ref5 = yield install.fetchRequestFromCwd();
-
-      const reqPatterns = _ref5.requests,
-            workspaceLayout = _ref5.workspaceLayout;
-
-      // Filter out workspace patterns if necessary
-
-      let depReqPatterns = workspaceLayout ? reqPatterns.filter(function (p) {
-        return !workspaceLayout.getManifestByPattern(p.pattern);
-      }) : reqPatterns;
-
-      // filter the list down to just the packages requested.
-      // prevents us from having to query the metadata for all packages.
-      if (filterByPatterns && filterByPatterns.length || flags && flags.pattern) {
-        const filterByNames = filterByPatterns && filterByPatterns.length ? filterByPatterns.map(function (pattern) {
-          return (0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(pattern).name;
-        }) : [];
-        depReqPatterns = depReqPatterns.filter(function (dep) {
-          return filterByNames.indexOf((0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(dep.pattern).name) >= 0 || flags && flags.pattern && micromatch.contains((0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(dep.pattern).name, flags.pattern);
-        });
-      }
-
-      const deps = yield Promise.all(depReqPatterns.map((() => {
-        var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({ pattern, hint, workspaceName, workspaceLoc }) {
-          const locked = lockfile.getLocked(pattern);
-          if (!locked) {
-            throw new (_errors || _load_errors()).MessageError(reporter.lang('lockfileOutdated'));
-          }
-
-          const name = locked.name,
-                current = locked.version;
-
-          let latest = '';
-          let wanted = '';
-          let url = '';
-
-          const normalized = (0, (_normalizePattern4 || _load_normalizePattern()).normalizePattern)(pattern);
-
-          if ((0, (_index || _load_index()).getExoticResolver)(pattern) || (0, (_index || _load_index()).getExoticResolver)(normalized.range)) {
-            latest = wanted = 'exotic';
-            url = normalized.range;
-          } else {
-            const registry = config.registries[locked.registry];
-
-            var _ref7 = yield registry.checkOutdated(config, name, normalized.range);
-
-            latest = _ref7.latest;
-            wanted = _ref7.wanted;
-            url = _ref7.url;
-          }
-
-          return {
-            name,
-            current,
-            wanted,
-            latest,
-            url,
-            hint,
-            range: normalized.range,
-            upgradeTo: '',
-            workspaceName: workspaceName || '',
-            workspaceLoc: workspaceLoc || ''
-          };
-        });
-
-        return function (_x) {
-          return _ref6.apply(this, arguments);
-        };
-      })()));
-
-      // Make sure to always output `exotic` versions to be compatible with npm
-      const isDepOld = function isDepOld({ current, latest, wanted }) {
-        return latest === 'exotic' || (_semver || _load_semver()).default.lt(current, wanted) || (_semver || _load_semver()).default.lt(current, latest);
-      };
-      const orderByName = function orderByName(depA, depB) {
-        return depA.name.localeCompare(depB.name);
-      };
-      return deps.filter(isDepOld).sort(orderByName);
-    })();
-  }
-}
-exports.default = PackageRequest;
-
-/***/ }),
-/* 123 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-class BaseResolver {
-  constructor(request, fragment) {
-    this.resolver = request.resolver;
-    this.reporter = request.reporter;
-    this.fragment = fragment;
-    this.registry = request.registry;
-    this.request = request;
-    this.pattern = request.pattern;
-    this.config = request.config;
-  }
-
-  fork(Resolver, resolveArg, ...args) {
-    const resolver = new Resolver(this.request, ...args);
-    resolver.registry = this.registry;
-    return resolver.resolve(resolveArg);
-  }
-
-  resolve(resolveArg) {
-    throw new Error('Not implemented');
-  }
-}
-exports.default = BaseResolver;
-
-/***/ }),
-/* 124 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = _interopRequireWildcard(__webpack_require__(18));
-}
-
-var _version;
-
-function _load_version() {
-  return _version = _interopRequireWildcard(__webpack_require__(226));
-}
-
-var _guessName;
-
-function _load_guessName() {
-  return _guessName = _interopRequireDefault(__webpack_require__(169));
-}
-
-var _index2;
-
-function _load_index2() {
-  return _index2 = __webpack_require__(57);
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _git;
-
-function _load_git() {
-  return _git = _interopRequireDefault(__webpack_require__(219));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const urlParse = __webpack_require__(24).parse;
-
-const GIT_HOSTS = ['github.com', 'gitlab.com', 'bitbucket.com', 'bitbucket.org'];
-
-const GIT_PATTERN_MATCHERS = [/^git:/, /^git\+.+:/, /^ssh:/, /^https?:.+\.git$/, /^https?:.+\.git#.+/];
-
-class GitResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-
-    var _versionUtil$explodeH = (_version || _load_version()).explodeHashedUrl(fragment);
-
-    const url = _versionUtil$explodeH.url,
-          hash = _versionUtil$explodeH.hash;
-
-    this.url = url;
-    this.hash = hash;
-  }
-
-  static isVersion(pattern) {
-    for (var _iterator = GIT_PATTERN_MATCHERS, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const matcher = _ref;
-
-      if (matcher.test(pattern)) {
-        return true;
-      }
-    }
-
-    var _urlParse = urlParse(pattern);
-
-    const hostname = _urlParse.hostname,
-          path = _urlParse.path;
-
-    if (hostname && path && GIT_HOSTS.indexOf(hostname) >= 0) {
-      // only if dependency is pointing to a git repo,
-      // e.g. facebook/flow and not file in a git repo facebook/flow/archive/v1.0.0.tar.gz
-      return path.split('/').filter(p => !!p).length === 2;
-    }
-
-    return false;
-  }
-
-  resolve(forked) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let tryRegistry = (() => {
-        var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (registry) {
-          const filename = (_index2 || _load_index2()).registries[registry].filename;
-
-          const file = yield client.getFile(filename);
-          if (!file) {
-            return null;
-          }
-
-          const json = yield config.readJson(`${url}/${filename}`, function () {
-            return JSON.parse(file);
-          });
-          json._uid = commit;
-          json._remote = {
-            resolved: `${url}#${commit}`,
-            type: 'git',
-            reference: url,
-            hash: commit,
-            registry
-          };
-          return json;
-        });
-
-        return function tryRegistry(_x) {
-          return _ref2.apply(this, arguments);
-        };
-      })();
-
-      const url = _this.url;
-
-      // shortcut for hosted git. we will fallback to a GitResolver if the hosted git
-      // optimisations fail which the `forked` flag indicates so we don't get into an
-      // infinite loop
-
-      const parts = urlParse(url);
-      if (false) {
-        // check if this git url uses any of the hostnames defined in our hosted git resolvers
-        for (const name in (_index || _load_index()).hostedGit) {
-          const Resolver = (_index || _load_index()).hostedGit[name];
-          if (Resolver.hostname !== parts.hostname) {
-            continue;
-          }
-
-          // we have a match! clean up the pathname of url artifacts
-          let pathname = parts.pathname;
-          pathname = (_misc || _load_misc()).removePrefix(pathname, '/'); // remove prefixed slash
-          pathname = (_misc || _load_misc()).removeSuffix(pathname, '.git'); // remove .git suffix if present
-
-          const url = `${pathname}${_this.hash ? '#' + decodeURIComponent(_this.hash) : ''}`;
-          return _this.fork(Resolver, false, url);
-        }
-      }
-
-      // get from lockfile
-      const shrunk = _this.request.getLocked('git');
-      if (shrunk) {
-        return shrunk;
-      }
-
-      const config = _this.config;
-
-
-      const gitUrl = (_git || _load_git()).default.npmUrlToGitUrl(url);
-      const client = new (_git || _load_git()).default(config, gitUrl, _this.hash);
-      const commit = yield client.init();
-
-      const file = yield tryRegistry(_this.registry);
-      if (file) {
-        return file;
-      }
-
-      for (const registry in (_index2 || _load_index2()).registries) {
-        if (registry === _this.registry) {
-          continue;
-        }
-
-        const file = yield tryRegistry(registry);
-        if (file) {
-          return file;
-        }
-      }
-
-      return {
-        // This is just the default, it can be overridden with key of dependencies
-        name: (0, (_guessName || _load_guessName()).default)(url),
-        version: '0.0.0',
-        _uid: commit,
-        _remote: {
-          resolved: `${url}#${commit}`,
-          type: 'git',
-          reference: url,
-          hash: commit,
-          registry: 'npm'
-        }
-      };
-    })();
-  }
-}
-exports.default = GitResolver;
-
-/***/ }),
-/* 125 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.isValidPackageName = isValidPackageName;
-
-exports.default = function (info, isRoot, reporter, warn) {
-  if (isRoot) {
-    for (const key in (_typos || _load_typos()).default) {
-      if (key in info) {
-        warn(reporter.lang('manifestPotentialTypo', key, (_typos || _load_typos()).default[key]));
-      }
-    }
-  }
-
-  // validate name
-  const name = info.name;
-
-  if (typeof name === 'string') {
-    if (isRoot && isBuiltinModule(name)) {
-      warn(reporter.lang('manifestBuiltinModule', name));
-    }
-
-    // cannot start with a dot
-    if (name[0] === '.') {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('manifestNameDot'));
-    }
-
-    // cannot contain the following characters
-    if (!isValidPackageName(name)) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('manifestNameIllegalChars'));
-    }
-
-    // cannot equal node_modules or favicon.ico
-    const lower = name.toLowerCase();
-    if (lower === 'node_modules' || lower === 'favicon.ico') {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('manifestNameBlacklisted'));
-    }
-  }
-
-  // validate license
-  if (isRoot && !info.private) {
-    if (typeof info.license === 'string') {
-      const license = info.license.replace(/\*$/g, '');
-      if (!(0, (_util || _load_util()).isValidLicense)(license)) {
-        warn(reporter.lang('manifestLicenseInvalid'));
-      }
-    } else {
-      warn(reporter.lang('manifestLicenseNone'));
-    }
-  }
-
-  // validate strings
-  for (var _iterator = strings, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const key = _ref;
-
-    const val = info[key];
-    if (val && typeof val !== 'string') {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('manifestStringExpected', key));
-    }
-  }
-
-  cleanDependencies(info, isRoot, reporter, warn);
-};
-
-exports.cleanDependencies = cleanDependencies;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(221);
-}
-
-var _typos;
-
-function _load_typos() {
-  return _typos = _interopRequireDefault(__webpack_require__(587));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const isBuiltinModule = __webpack_require__(730);
-
-const strings = ['name', 'version'];
-
-const dependencyKeys = [
-// npm registry will include optionalDependencies in dependencies and we'll want to dedupe them from the
-// other fields first
-'optionalDependencies',
-
-// it's seemingly common to include a dependency in dependencies and devDependencies of the same name but
-// different ranges, this can cause a lot of issues with our determinism and the behaviour of npm is
-// currently unspecified.
-'dependencies', 'devDependencies'];
-
-function isValidName(name) {
-  return !name.match(/[\/@\s\+%:]/) && encodeURIComponent(name) === name;
-}
-
-function isValidScopedName(name) {
-  if (name[0] !== '@') {
-    return false;
-  }
-
-  const parts = name.slice(1).split('/');
-  return parts.length === 2 && isValidName(parts[0]) && isValidName(parts[1]);
-}
-
-function isValidPackageName(name) {
-  return isValidName(name) || isValidScopedName(name);
-}
-
-function cleanDependencies(info, isRoot, reporter, warn) {
-  // get dependency objects
-  const depTypes = [];
-  for (var _iterator2 = dependencyKeys, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref2 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref2 = _i2.value;
-    }
-
-    const type = _ref2;
-
-    const deps = info[type];
-    if (!deps || typeof deps !== 'object') {
-      continue;
-    }
-    depTypes.push([type, deps]);
-  }
-
-  // aggregate all non-trivial deps (not '' or '*')
-  const nonTrivialDeps = new Map();
-  for (var _iterator3 = depTypes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-    var _ref4;
-
-    if (_isArray3) {
-      if (_i3 >= _iterator3.length) break;
-      _ref4 = _iterator3[_i3++];
-    } else {
-      _i3 = _iterator3.next();
-      if (_i3.done) break;
-      _ref4 = _i3.value;
-    }
-
-    const _ref3 = _ref4;
-    const type = _ref3[0];
-    const deps = _ref3[1];
-
-    for (var _iterator5 = Object.keys(deps), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray5) {
-        if (_i5 >= _iterator5.length) break;
-        _ref7 = _iterator5[_i5++];
-      } else {
-        _i5 = _iterator5.next();
-        if (_i5.done) break;
-        _ref7 = _i5.value;
-      }
-
-      const name = _ref7;
-
-      const version = deps[name];
-      if (!nonTrivialDeps.has(name) && version && version !== '*') {
-        nonTrivialDeps.set(name, { type, version });
-      }
-    }
-  }
-
-  // overwrite first dep of package with non-trivial version, remove the rest
-  const setDeps = new Set();
-  for (var _iterator4 = depTypes, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-    var _ref6;
-
-    if (_isArray4) {
-      if (_i4 >= _iterator4.length) break;
-      _ref6 = _iterator4[_i4++];
-    } else {
-      _i4 = _iterator4.next();
-      if (_i4.done) break;
-      _ref6 = _i4.value;
-    }
-
-    const _ref5 = _ref6;
-    const type = _ref5[0];
-    const deps = _ref5[1];
-
-    for (var _iterator6 = Object.keys(deps), _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-      var _ref8;
-
-      if (_isArray6) {
-        if (_i6 >= _iterator6.length) break;
-        _ref8 = _iterator6[_i6++];
-      } else {
-        _i6 = _iterator6.next();
-        if (_i6.done) break;
-        _ref8 = _i6.value;
-      }
-
-      const name = _ref8;
-
-      let version = deps[name];
-
-      const dep = nonTrivialDeps.get(name);
-      if (dep) {
-        if (version && version !== '*' && version !== dep.version && isRoot) {
-          // only throw a warning when at the root
-          warn(reporter.lang('manifestDependencyCollision', dep.type, name, dep.version, type, version));
-        }
-        version = dep.version;
-      }
-
-      if (setDeps.has(name)) {
-        delete deps[name];
-      } else {
-        deps[name] = version;
-        setDeps.add(name);
-      }
-    }
-  }
-}
-
-/***/ }),
-/* 126 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// getting tag from 19.1.3.6 Object.prototype.toString()
-var cof = __webpack_require__(69);
-var TAG = __webpack_require__(20)('toStringTag');
-// ES3 wrong here
-var ARG = cof(function () { return arguments; }()) == 'Arguments';
-
-// fallback for IE11 Script Access Denied error
-var tryGet = function (it, key) {
-  try {
-    return it[key];
-  } catch (e) { /* empty */ }
-};
-
-module.exports = function (it) {
-  var O, T, B;
-  return it === undefined ? 'Undefined' : it === null ? 'Null'
-    // @@toStringTag case
-    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
-    // builtinTag case
-    : ARG ? cof(O)
-    // ES3 arguments fallback
-    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
-};
-
-
-/***/ }),
-/* 127 */
-/***/ (function(module, exports) {
-
-// IE 8- don't enum bug keys
-module.exports = (
-  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
-).split(',');
-
-
-/***/ }),
-/* 128 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var document = __webpack_require__(17).document;
-module.exports = document && document.documentElement;
-
-
-/***/ }),
-/* 129 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var LIBRARY = __webpack_require__(93);
-var $export = __webpack_require__(60);
-var redefine = __webpack_require__(251);
-var hide = __webpack_require__(42);
-var Iterators = __webpack_require__(53);
-var $iterCreate = __webpack_require__(242);
-var setToStringTag = __webpack_require__(95);
-var getPrototypeOf = __webpack_require__(248);
-var ITERATOR = __webpack_require__(20)('iterator');
-var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
-var FF_ITERATOR = '@@iterator';
-var KEYS = 'keys';
-var VALUES = 'values';
-
-var returnThis = function () { return this; };
-
-module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
-  $iterCreate(Constructor, NAME, next);
-  var getMethod = function (kind) {
-    if (!BUGGY && kind in proto) return proto[kind];
-    switch (kind) {
-      case KEYS: return function keys() { return new Constructor(this, kind); };
-      case VALUES: return function values() { return new Constructor(this, kind); };
-    } return function entries() { return new Constructor(this, kind); };
-  };
-  var TAG = NAME + ' Iterator';
-  var DEF_VALUES = DEFAULT == VALUES;
-  var VALUES_BUG = false;
-  var proto = Base.prototype;
-  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
-  var $default = $native || getMethod(DEFAULT);
-  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
-  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
-  var methods, key, IteratorPrototype;
-  // Fix native
-  if ($anyNative) {
-    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
-    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
-      // Set @@toStringTag to native iterators
-      setToStringTag(IteratorPrototype, TAG, true);
-      // fix for some old engines
-      if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
-    }
-  }
-  // fix Array#{values, @@iterator}.name in V8 / FF
-  if (DEF_VALUES && $native && $native.name !== VALUES) {
-    VALUES_BUG = true;
-    $default = function values() { return $native.call(this); };
-  }
-  // Define iterator
-  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
-    hide(proto, ITERATOR, $default);
-  }
-  // Plug for library
-  Iterators[NAME] = $default;
-  Iterators[TAG] = returnThis;
-  if (DEFAULT) {
-    methods = {
-      values: DEF_VALUES ? $default : getMethod(VALUES),
-      keys: IS_SET ? $default : getMethod(KEYS),
-      entries: $entries
-    };
-    if (FORCED) for (key in methods) {
-      if (!(key in proto)) redefine(proto, key, methods[key]);
-    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
-  }
-  return methods;
-};
-
-
-/***/ }),
-/* 130 */
-/***/ (function(module, exports) {
-
-module.exports = function (exec) {
-  try {
-    return { e: false, v: exec() };
-  } catch (e) {
-    return { e: true, v: e };
-  }
-};
-
-
-/***/ }),
-/* 131 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var anObject = __webpack_require__(35);
-var isObject = __webpack_require__(52);
-var newPromiseCapability = __webpack_require__(94);
-
-module.exports = function (C, x) {
-  anObject(C);
-  if (isObject(x) && x.constructor === C) return x;
-  var promiseCapability = newPromiseCapability.f(C);
-  var resolve = promiseCapability.resolve;
-  resolve(x);
-  return promiseCapability.promise;
-};
-
-
-/***/ }),
-/* 132 */
-/***/ (function(module, exports) {
-
-module.exports = function (bitmap, value) {
-  return {
-    enumerable: !(bitmap & 1),
-    configurable: !(bitmap & 2),
-    writable: !(bitmap & 4),
-    value: value
-  };
-};
-
-
-/***/ }),
-/* 133 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var core = __webpack_require__(31);
-var global = __webpack_require__(17);
-var SHARED = '__core-js_shared__';
-var store = global[SHARED] || (global[SHARED] = {});
-
-(module.exports = function (key, value) {
-  return store[key] || (store[key] = value !== undefined ? value : {});
-})('versions', []).push({
-  version: core.version,
-  mode: __webpack_require__(93) ? 'pure' : 'global',
-  copyright: '© 2018 Denis Pushkarev (zloirock.ru)'
-});
-
-
-/***/ }),
-/* 134 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 7.3.20 SpeciesConstructor(O, defaultConstructor)
-var anObject = __webpack_require__(35);
-var aFunction = __webpack_require__(68);
-var SPECIES = __webpack_require__(20)('species');
-module.exports = function (O, D) {
-  var C = anObject(O).constructor;
-  var S;
-  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
-};
-
-
-/***/ }),
-/* 135 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ctx = __webpack_require__(70);
-var invoke = __webpack_require__(239);
-var html = __webpack_require__(128);
-var cel = __webpack_require__(92);
-var global = __webpack_require__(17);
-var process = global.process;
-var setTask = global.setImmediate;
-var clearTask = global.clearImmediate;
-var MessageChannel = global.MessageChannel;
-var Dispatch = global.Dispatch;
-var counter = 0;
-var queue = {};
-var ONREADYSTATECHANGE = 'onreadystatechange';
-var defer, channel, port;
-var run = function () {
-  var id = +this;
-  // eslint-disable-next-line no-prototype-builtins
-  if (queue.hasOwnProperty(id)) {
-    var fn = queue[id];
-    delete queue[id];
-    fn();
-  }
-};
-var listener = function (event) {
-  run.call(event.data);
-};
-// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
-if (!setTask || !clearTask) {
-  setTask = function setImmediate(fn) {
-    var args = [];
-    var i = 1;
-    while (arguments.length > i) args.push(arguments[i++]);
-    queue[++counter] = function () {
-      // eslint-disable-next-line no-new-func
-      invoke(typeof fn == 'function' ? fn : Function(fn), args);
-    };
-    defer(counter);
-    return counter;
-  };
-  clearTask = function clearImmediate(id) {
-    delete queue[id];
-  };
-  // Node.js 0.8-
-  if (__webpack_require__(69)(process) == 'process') {
-    defer = function (id) {
-      process.nextTick(ctx(run, id, 1));
-    };
-  // Sphere (JS game engine) Dispatch API
-  } else if (Dispatch && Dispatch.now) {
-    defer = function (id) {
-      Dispatch.now(ctx(run, id, 1));
-    };
-  // Browsers with MessageChannel, includes WebWorkers
-  } else if (MessageChannel) {
-    channel = new MessageChannel();
-    port = channel.port2;
-    channel.port1.onmessage = listener;
-    defer = ctx(port.postMessage, port, 1);
-  // Browsers with postMessage, skip WebWorkers
-  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
-  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
-    defer = function (id) {
-      global.postMessage(id + '', '*');
-    };
-    global.addEventListener('message', listener, false);
-  // IE8-
-  } else if (ONREADYSTATECHANGE in cel('script')) {
-    defer = function (id) {
-      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
-        html.removeChild(this);
-        run.call(id);
-      };
-    };
-  // Rest old browsers
-  } else {
-    defer = function (id) {
-      setTimeout(ctx(run, id, 1), 0);
-    };
-  }
-}
-module.exports = {
-  set: setTask,
-  clear: clearTask
-};
-
-
-/***/ }),
-/* 136 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 7.1.15 ToLength
-var toInteger = __webpack_require__(97);
-var min = Math.min;
-module.exports = function (it) {
-  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
-};
-
-
-/***/ }),
-/* 137 */
-/***/ (function(module, exports) {
-
-var id = 0;
-var px = Math.random();
-module.exports = function (key) {
-  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
-};
-
-
-/***/ }),
-/* 138 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-/**
- * This is the common logic for both the Node.js and web browser
- * implementations of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
-exports.coerce = coerce;
-exports.disable = disable;
-exports.enable = enable;
-exports.enabled = enabled;
-exports.humanize = __webpack_require__(301);
-
-/**
- * Active `debug` instances.
- */
-exports.instances = [];
-
-/**
- * The currently active debug mode names, and names to skip.
- */
-
-exports.names = [];
-exports.skips = [];
-
-/**
- * Map of special "%n" handling functions, for the debug "format" argument.
- *
- * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
- */
-
-exports.formatters = {};
-
-/**
- * Select a color.
- * @param {String} namespace
- * @return {Number}
- * @api private
- */
-
-function selectColor(namespace) {
-  var hash = 0, i;
-
-  for (i in namespace) {
-    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
-    hash |= 0; // Convert to 32bit integer
-  }
-
-  return exports.colors[Math.abs(hash) % exports.colors.length];
-}
-
-/**
- * Create a debugger with the given `namespace`.
- *
- * @param {String} namespace
- * @return {Function}
- * @api public
- */
-
-function createDebug(namespace) {
-
-  var prevTime;
-
-  function debug() {
-    // disabled?
-    if (!debug.enabled) return;
-
-    var self = debug;
-
-    // set `diff` timestamp
-    var curr = +new Date();
-    var ms = curr - (prevTime || curr);
-    self.diff = ms;
-    self.prev = prevTime;
-    self.curr = curr;
-    prevTime = curr;
-
-    // turn the `arguments` into a proper Array
-    var args = new Array(arguments.length);
-    for (var i = 0; i < args.length; i++) {
-      args[i] = arguments[i];
-    }
-
-    args[0] = exports.coerce(args[0]);
-
-    if ('string' !== typeof args[0]) {
-      // anything else let's inspect with %O
-      args.unshift('%O');
-    }
-
-    // apply any `formatters` transformations
-    var index = 0;
-    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
-      // if we encounter an escaped % then don't increase the array index
-      if (match === '%%') return match;
-      index++;
-      var formatter = exports.formatters[format];
-      if ('function' === typeof formatter) {
-        var val = args[index];
-        match = formatter.call(self, val);
-
-        // now we need to remove `args[index]` since it's inlined in the `format`
-        args.splice(index, 1);
-        index--;
-      }
-      return match;
-    });
-
-    // apply env-specific formatting (colors, etc.)
-    exports.formatArgs.call(self, args);
-
-    var logFn = debug.log || exports.log || console.log.bind(console);
-    logFn.apply(self, args);
-  }
-
-  debug.namespace = namespace;
-  debug.enabled = exports.enabled(namespace);
-  debug.useColors = exports.useColors();
-  debug.color = selectColor(namespace);
-  debug.destroy = destroy;
-
-  // env-specific initialization logic for debug instances
-  if ('function' === typeof exports.init) {
-    exports.init(debug);
-  }
-
-  exports.instances.push(debug);
-
-  return debug;
-}
-
-function destroy () {
-  var index = exports.instances.indexOf(this);
-  if (index !== -1) {
-    exports.instances.splice(index, 1);
-    return true;
-  } else {
-    return false;
-  }
-}
-
-/**
- * Enables a debug mode by namespaces. This can include modes
- * separated by a colon and wildcards.
- *
- * @param {String} namespaces
- * @api public
- */
-
-function enable(namespaces) {
-  exports.save(namespaces);
-
-  exports.names = [];
-  exports.skips = [];
-
-  var i;
-  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
-  var len = split.length;
-
-  for (i = 0; i < len; i++) {
-    if (!split[i]) continue; // ignore empty strings
-    namespaces = split[i].replace(/\*/g, '.*?');
-    if (namespaces[0] === '-') {
-      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
-    } else {
-      exports.names.push(new RegExp('^' + namespaces + '$'));
-    }
-  }
-
-  for (i = 0; i < exports.instances.length; i++) {
-    var instance = exports.instances[i];
-    instance.enabled = exports.enabled(instance.namespace);
-  }
-}
-
-/**
- * Disable debug output.
- *
- * @api public
- */
-
-function disable() {
-  exports.enable('');
-}
-
-/**
- * Returns true if the given mode name is enabled, false otherwise.
- *
- * @param {String} name
- * @return {Boolean}
- * @api public
- */
-
-function enabled(name) {
-  if (name[name.length - 1] === '*') {
-    return true;
-  }
-  var i, len;
-  for (i = 0, len = exports.skips.length; i < len; i++) {
-    if (exports.skips[i].test(name)) {
-      return false;
-    }
-  }
-  for (i = 0, len = exports.names.length; i < len; i++) {
-    if (exports.names[i].test(name)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * Coerce `val`.
- *
- * @param {Mixed} val
- * @return {Mixed}
- * @api private
- */
-
-function coerce(val) {
-  if (val instanceof Error) return val.stack || val.message;
-  return val;
-}
-
-
-/***/ }),
-/* 139 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Basic Javascript Elliptic Curve implementation
-// Ported loosely from BouncyCastle's Java EC code
-// Only Fp curves implemented for now
-
-// Requires jsbn.js and jsbn2.js
-var BigInteger = __webpack_require__(81).BigInteger
-var Barrett = BigInteger.prototype.Barrett
-
-// ----------------
-// ECFieldElementFp
-
-// constructor
-function ECFieldElementFp(q,x) {
-    this.x = x;
-    // TODO if(x.compareTo(q) >= 0) error
-    this.q = q;
-}
-
-function feFpEquals(other) {
-    if(other == this) return true;
-    return (this.q.equals(other.q) && this.x.equals(other.x));
-}
-
-function feFpToBigInteger() {
-    return this.x;
-}
-
-function feFpNegate() {
-    return new ECFieldElementFp(this.q, this.x.negate().mod(this.q));
-}
-
-function feFpAdd(b) {
-    return new ECFieldElementFp(this.q, this.x.add(b.toBigInteger()).mod(this.q));
-}
-
-function feFpSubtract(b) {
-    return new ECFieldElementFp(this.q, this.x.subtract(b.toBigInteger()).mod(this.q));
-}
-
-function feFpMultiply(b) {
-    return new ECFieldElementFp(this.q, this.x.multiply(b.toBigInteger()).mod(this.q));
-}
-
-function feFpSquare() {
-    return new ECFieldElementFp(this.q, this.x.square().mod(this.q));
-}
-
-function feFpDivide(b) {
-    return new ECFieldElementFp(this.q, this.x.multiply(b.toBigInteger().modInverse(this.q)).mod(this.q));
-}
-
-ECFieldElementFp.prototype.equals = feFpEquals;
-ECFieldElementFp.prototype.toBigInteger = feFpToBigInteger;
-ECFieldElementFp.prototype.negate = feFpNegate;
-ECFieldElementFp.prototype.add = feFpAdd;
-ECFieldElementFp.prototype.subtract = feFpSubtract;
-ECFieldElementFp.prototype.multiply = feFpMultiply;
-ECFieldElementFp.prototype.square = feFpSquare;
-ECFieldElementFp.prototype.divide = feFpDivide;
-
-// ----------------
-// ECPointFp
-
-// constructor
-function ECPointFp(curve,x,y,z) {
-    this.curve = curve;
-    this.x = x;
-    this.y = y;
-    // Projective coordinates: either zinv == null or z * zinv == 1
-    // z and zinv are just BigIntegers, not fieldElements
-    if(z == null) {
-      this.z = BigInteger.ONE;
-    }
-    else {
-      this.z = z;
-    }
-    this.zinv = null;
-    //TODO: compression flag
-}
-
-function pointFpGetX() {
-    if(this.zinv == null) {
-      this.zinv = this.z.modInverse(this.curve.q);
-    }
-    var r = this.x.toBigInteger().multiply(this.zinv);
-    this.curve.reduce(r);
-    return this.curve.fromBigInteger(r);
-}
-
-function pointFpGetY() {
-    if(this.zinv == null) {
-      this.zinv = this.z.modInverse(this.curve.q);
-    }
-    var r = this.y.toBigInteger().multiply(this.zinv);
-    this.curve.reduce(r);
-    return this.curve.fromBigInteger(r);
-}
-
-function pointFpEquals(other) {
-    if(other == this) return true;
-    if(this.isInfinity()) return other.isInfinity();
-    if(other.isInfinity()) return this.isInfinity();
-    var u, v;
-    // u = Y2 * Z1 - Y1 * Z2
-    u = other.y.toBigInteger().multiply(this.z).subtract(this.y.toBigInteger().multiply(other.z)).mod(this.curve.q);
-    if(!u.equals(BigInteger.ZERO)) return false;
-    // v = X2 * Z1 - X1 * Z2
-    v = other.x.toBigInteger().multiply(this.z).subtract(this.x.toBigInteger().multiply(other.z)).mod(this.curve.q);
-    return v.equals(BigInteger.ZERO);
-}
-
-function pointFpIsInfinity() {
-    if((this.x == null) && (this.y == null)) return true;
-    return this.z.equals(BigInteger.ZERO) && !this.y.toBigInteger().equals(BigInteger.ZERO);
-}
-
-function pointFpNegate() {
-    return new ECPointFp(this.curve, this.x, this.y.negate(), this.z);
-}
-
-function pointFpAdd(b) {
-    if(this.isInfinity()) return b;
-    if(b.isInfinity()) return this;
-
-    // u = Y2 * Z1 - Y1 * Z2
-    var u = b.y.toBigInteger().multiply(this.z).subtract(this.y.toBigInteger().multiply(b.z)).mod(this.curve.q);
-    // v = X2 * Z1 - X1 * Z2
-    var v = b.x.toBigInteger().multiply(this.z).subtract(this.x.toBigInteger().multiply(b.z)).mod(this.curve.q);
-
-    if(BigInteger.ZERO.equals(v)) {
-        if(BigInteger.ZERO.equals(u)) {
-            return this.twice(); // this == b, so double
-        }
-	return this.curve.getInfinity(); // this = -b, so infinity
-    }
-
-    var THREE = new BigInteger("3");
-    var x1 = this.x.toBigInteger();
-    var y1 = this.y.toBigInteger();
-    var x2 = b.x.toBigInteger();
-    var y2 = b.y.toBigInteger();
-
-    var v2 = v.square();
-    var v3 = v2.multiply(v);
-    var x1v2 = x1.multiply(v2);
-    var zu2 = u.square().multiply(this.z);
-
-    // x3 = v * (z2 * (z1 * u^2 - 2 * x1 * v^2) - v^3)
-    var x3 = zu2.subtract(x1v2.shiftLeft(1)).multiply(b.z).subtract(v3).multiply(v).mod(this.curve.q);
-    // y3 = z2 * (3 * x1 * u * v^2 - y1 * v^3 - z1 * u^3) + u * v^3
-    var y3 = x1v2.multiply(THREE).multiply(u).subtract(y1.multiply(v3)).subtract(zu2.multiply(u)).multiply(b.z).add(u.multiply(v3)).mod(this.curve.q);
-    // z3 = v^3 * z1 * z2
-    var z3 = v3.multiply(this.z).multiply(b.z).mod(this.curve.q);
-
-    return new ECPointFp(this.curve, this.curve.fromBigInteger(x3), this.curve.fromBigInteger(y3), z3);
-}
-
-function pointFpTwice() {
-    if(this.isInfinity()) return this;
-    if(this.y.toBigInteger().signum() == 0) return this.curve.getInfinity();
-
-    // TODO: optimized handling of constants
-    var THREE = new BigInteger("3");
-    var x1 = this.x.toBigInteger();
-    var y1 = this.y.toBigInteger();
-
-    var y1z1 = y1.multiply(this.z);
-    var y1sqz1 = y1z1.multiply(y1).mod(this.curve.q);
-    var a = this.curve.a.toBigInteger();
-
-    // w = 3 * x1^2 + a * z1^2
-    var w = x1.square().multiply(THREE);
-    if(!BigInteger.ZERO.equals(a)) {
-      w = w.add(this.z.square().multiply(a));
-    }
-    w = w.mod(this.curve.q);
-    //this.curve.reduce(w);
-    // x3 = 2 * y1 * z1 * (w^2 - 8 * x1 * y1^2 * z1)
-    var x3 = w.square().subtract(x1.shiftLeft(3).multiply(y1sqz1)).shiftLeft(1).multiply(y1z1).mod(this.curve.q);
-    // y3 = 4 * y1^2 * z1 * (3 * w * x1 - 2 * y1^2 * z1) - w^3
-    var y3 = w.multiply(THREE).multiply(x1).subtract(y1sqz1.shiftLeft(1)).shiftLeft(2).multiply(y1sqz1).subtract(w.square().multiply(w)).mod(this.curve.q);
-    // z3 = 8 * (y1 * z1)^3
-    var z3 = y1z1.square().multiply(y1z1).shiftLeft(3).mod(this.curve.q);
-
-    return new ECPointFp(this.curve, this.curve.fromBigInteger(x3), this.curve.fromBigInteger(y3), z3);
-}
-
-// Simple NAF (Non-Adjacent Form) multiplication algorithm
-// TODO: modularize the multiplication algorithm
-function pointFpMultiply(k) {
-    if(this.isInfinity()) return this;
-    if(k.signum() == 0) return this.curve.getInfinity();
-
-    var e = k;
-    var h = e.multiply(new BigInteger("3"));
-
-    var neg = this.negate();
-    var R = this;
-
-    var i;
-    for(i = h.bitLength() - 2; i > 0; --i) {
-	R = R.twice();
-
-	var hBit = h.testBit(i);
-	var eBit = e.testBit(i);
-
-	if (hBit != eBit) {
-	    R = R.add(hBit ? this : neg);
-	}
-    }
-
-    return R;
-}
-
-// Compute this*j + x*k (simultaneous multiplication)
-function pointFpMultiplyTwo(j,x,k) {
-  var i;
-  if(j.bitLength() > k.bitLength())
-    i = j.bitLength() - 1;
-  else
-    i = k.bitLength() - 1;
-
-  var R = this.curve.getInfinity();
-  var both = this.add(x);
-  while(i >= 0) {
-    R = R.twice();
-    if(j.testBit(i)) {
-      if(k.testBit(i)) {
-        R = R.add(both);
-      }
-      else {
-        R = R.add(this);
-      }
-    }
-    else {
-      if(k.testBit(i)) {
-        R = R.add(x);
-      }
-    }
-    --i;
-  }
-
-  return R;
-}
-
-ECPointFp.prototype.getX = pointFpGetX;
-ECPointFp.prototype.getY = pointFpGetY;
-ECPointFp.prototype.equals = pointFpEquals;
-ECPointFp.prototype.isInfinity = pointFpIsInfinity;
-ECPointFp.prototype.negate = pointFpNegate;
-ECPointFp.prototype.add = pointFpAdd;
-ECPointFp.prototype.twice = pointFpTwice;
-ECPointFp.prototype.multiply = pointFpMultiply;
-ECPointFp.prototype.multiplyTwo = pointFpMultiplyTwo;
-
-// ----------------
-// ECCurveFp
-
-// constructor
-function ECCurveFp(q,a,b) {
-    this.q = q;
-    this.a = this.fromBigInteger(a);
-    this.b = this.fromBigInteger(b);
-    this.infinity = new ECPointFp(this, null, null);
-    this.reducer = new Barrett(this.q);
-}
-
-function curveFpGetQ() {
-    return this.q;
-}
-
-function curveFpGetA() {
-    return this.a;
-}
-
-function curveFpGetB() {
-    return this.b;
-}
-
-function curveFpEquals(other) {
-    if(other == this) return true;
-    return(this.q.equals(other.q) && this.a.equals(other.a) && this.b.equals(other.b));
-}
-
-function curveFpGetInfinity() {
-    return this.infinity;
-}
-
-function curveFpFromBigInteger(x) {
-    return new ECFieldElementFp(this.q, x);
-}
-
-function curveReduce(x) {
-    this.reducer.reduce(x);
-}
-
-// for now, work with hex strings because they're easier in JS
-function curveFpDecodePointHex(s) {
-    switch(parseInt(s.substr(0,2), 16)) { // first byte
-    case 0:
-	return this.infinity;
-    case 2:
-    case 3:
-	// point compression not supported yet
-	return null;
-    case 4:
-    case 6:
-    case 7:
-	var len = (s.length - 2) / 2;
-	var xHex = s.substr(2, len);
-	var yHex = s.substr(len+2, len);
-
-	return new ECPointFp(this,
-			     this.fromBigInteger(new BigInteger(xHex, 16)),
-			     this.fromBigInteger(new BigInteger(yHex, 16)));
-
-    default: // unsupported
-	return null;
-    }
-}
-
-function curveFpEncodePointHex(p) {
-	if (p.isInfinity()) return "00";
-	var xHex = p.getX().toBigInteger().toString(16);
-	var yHex = p.getY().toBigInteger().toString(16);
-	var oLen = this.getQ().toString(16).length;
-	if ((oLen % 2) != 0) oLen++;
-	while (xHex.length < oLen) {
-		xHex = "0" + xHex;
-	}
-	while (yHex.length < oLen) {
-		yHex = "0" + yHex;
-	}
-	return "04" + xHex + yHex;
-}
-
-ECCurveFp.prototype.getQ = curveFpGetQ;
-ECCurveFp.prototype.getA = curveFpGetA;
-ECCurveFp.prototype.getB = curveFpGetB;
-ECCurveFp.prototype.equals = curveFpEquals;
-ECCurveFp.prototype.getInfinity = curveFpGetInfinity;
-ECCurveFp.prototype.fromBigInteger = curveFpFromBigInteger;
-ECCurveFp.prototype.reduce = curveReduce;
-//ECCurveFp.prototype.decodePointHex = curveFpDecodePointHex;
-ECCurveFp.prototype.encodePointHex = curveFpEncodePointHex;
-
-// from: https://github.com/kaielvin/jsbn-ec-point-compression
-ECCurveFp.prototype.decodePointHex = function(s)
-{
-	var yIsEven;
-    switch(parseInt(s.substr(0,2), 16)) { // first byte
-    case 0:
-	return this.infinity;
-    case 2:
-	yIsEven = false;
-    case 3:
-	if(yIsEven == undefined) yIsEven = true;
-	var len = s.length - 2;
-	var xHex = s.substr(2, len);
-	var x = this.fromBigInteger(new BigInteger(xHex,16));
-	var alpha = x.multiply(x.square().add(this.getA())).add(this.getB());
-	var beta = alpha.sqrt();
-
-    if (beta == null) throw "Invalid point compression";
-
-    var betaValue = beta.toBigInteger();
-    if (betaValue.testBit(0) != yIsEven)
-    {
-        // Use the other root
-        beta = this.fromBigInteger(this.getQ().subtract(betaValue));
-    }
-    return new ECPointFp(this,x,beta);
-    case 4:
-    case 6:
-    case 7:
-	var len = (s.length - 2) / 2;
-	var xHex = s.substr(2, len);
-	var yHex = s.substr(len+2, len);
-
-	return new ECPointFp(this,
-			     this.fromBigInteger(new BigInteger(xHex, 16)),
-			     this.fromBigInteger(new BigInteger(yHex, 16)));
-
-    default: // unsupported
-	return null;
-    }
-}
-ECCurveFp.prototype.encodeCompressedPointHex = function(p)
-{
-	if (p.isInfinity()) return "00";
-	var xHex = p.getX().toBigInteger().toString(16);
-	var oLen = this.getQ().toString(16).length;
-	if ((oLen % 2) != 0) oLen++;
-	while (xHex.length < oLen)
-		xHex = "0" + xHex;
-	var yPrefix;
-	if(p.getY().toBigInteger().isEven()) yPrefix = "02";
-	else                                 yPrefix = "03";
-
-	return yPrefix + xHex;
-}
-
-
-ECFieldElementFp.prototype.getR = function()
-{
-	if(this.r != undefined) return this.r;
-
-    this.r = null;
-    var bitLength = this.q.bitLength();
-    if (bitLength > 128)
-    {
-        var firstWord = this.q.shiftRight(bitLength - 64);
-        if (firstWord.intValue() == -1)
-        {
-            this.r = BigInteger.ONE.shiftLeft(bitLength).subtract(this.q);
-        }
-    }
-    return this.r;
-}
-ECFieldElementFp.prototype.modMult = function(x1,x2)
-{
-    return this.modReduce(x1.multiply(x2));
-}
-ECFieldElementFp.prototype.modReduce = function(x)
-{
-    if (this.getR() != null)
-    {
-        var qLen = q.bitLength();
-        while (x.bitLength() > (qLen + 1))
-        {
-            var u = x.shiftRight(qLen);
-            var v = x.subtract(u.shiftLeft(qLen));
-            if (!this.getR().equals(BigInteger.ONE))
-            {
-                u = u.multiply(this.getR());
-            }
-            x = u.add(v); 
-        }
-        while (x.compareTo(q) >= 0)
-        {
-            x = x.subtract(q);
-        }
-    }
-    else
-    {
-        x = x.mod(q);
-    }
-    return x;
-}
-ECFieldElementFp.prototype.sqrt = function()
-{
-    if (!this.q.testBit(0)) throw "unsupported";
-
-    // p mod 4 == 3
-    if (this.q.testBit(1))
-    {
-    	var z = new ECFieldElementFp(this.q,this.x.modPow(this.q.shiftRight(2).add(BigInteger.ONE),this.q));
-    	return z.square().equals(this) ? z : null;
-    }
-
-    // p mod 4 == 1
-    var qMinusOne = this.q.subtract(BigInteger.ONE);
-
-    var legendreExponent = qMinusOne.shiftRight(1);
-    if (!(this.x.modPow(legendreExponent, this.q).equals(BigInteger.ONE)))
-    {
-        return null;
-    }
-
-    var u = qMinusOne.shiftRight(2);
-    var k = u.shiftLeft(1).add(BigInteger.ONE);
-
-    var Q = this.x;
-    var fourQ = modDouble(modDouble(Q));
-
-    var U, V;
-    do
-    {
-        var P;
-        do
-        {
-            P = new BigInteger(this.q.bitLength(), new SecureRandom());
-        }
-        while (P.compareTo(this.q) >= 0
-            || !(P.multiply(P).subtract(fourQ).modPow(legendreExponent, this.q).equals(qMinusOne)));
-
-        var result = this.lucasSequence(P, Q, k);
-        U = result[0];
-        V = result[1];
-
-        if (this.modMult(V, V).equals(fourQ))
-        {
-            // Integer division by 2, mod q
-            if (V.testBit(0))
-            {
-                V = V.add(q);
-            }
-
-            V = V.shiftRight(1);
-
-            return new ECFieldElementFp(q,V);
-        }
-    }
-    while (U.equals(BigInteger.ONE) || U.equals(qMinusOne));
-
-    return null;
-}
-ECFieldElementFp.prototype.lucasSequence = function(P,Q,k)
-{
-    var n = k.bitLength();
-    var s = k.getLowestSetBit();
-
-    var Uh = BigInteger.ONE;
-    var Vl = BigInteger.TWO;
-    var Vh = P;
-    var Ql = BigInteger.ONE;
-    var Qh = BigInteger.ONE;
-
-    for (var j = n - 1; j >= s + 1; --j)
-    {
-        Ql = this.modMult(Ql, Qh);
-
-        if (k.testBit(j))
-        {
-            Qh = this.modMult(Ql, Q);
-            Uh = this.modMult(Uh, Vh);
-            Vl = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql)));
-            Vh = this.modReduce(Vh.multiply(Vh).subtract(Qh.shiftLeft(1)));
-        }
-        else
-        {
-            Qh = Ql;
-            Uh = this.modReduce(Uh.multiply(Vl).subtract(Ql));
-            Vh = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql)));
-            Vl = this.modReduce(Vl.multiply(Vl).subtract(Ql.shiftLeft(1)));
-        }
-    }
-
-    Ql = this.modMult(Ql, Qh);
-    Qh = this.modMult(Ql, Q);
-    Uh = this.modReduce(Uh.multiply(Vl).subtract(Ql));
-    Vl = this.modReduce(Vh.multiply(Vl).subtract(P.multiply(Ql)));
-    Ql = this.modMult(Ql, Qh);
-
-    for (var j = 1; j <= s; ++j)
-    {
-        Uh = this.modMult(Uh, Vl);
-        Vl = this.modReduce(Vl.multiply(Vl).subtract(Ql.shiftLeft(1)));
-        Ql = this.modMult(Ql, Ql);
-    }
-
-    return [ Uh, Vl ];
-}
-
-var exports = {
-  ECCurveFp: ECCurveFp,
-  ECPointFp: ECPointFp,
-  ECFieldElementFp: ECFieldElementFp
-}
-
-module.exports = exports
-
-
-/***/ }),
-/* 140 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = realpath
-realpath.realpath = realpath
-realpath.sync = realpathSync
-realpath.realpathSync = realpathSync
-realpath.monkeypatch = monkeypatch
-realpath.unmonkeypatch = unmonkeypatch
-
-var fs = __webpack_require__(5)
-var origRealpath = fs.realpath
-var origRealpathSync = fs.realpathSync
-
-var version = process.version
-var ok = /^v[0-5]\./.test(version)
-var old = __webpack_require__(271)
-
-function newError (er) {
-  return er && er.syscall === 'realpath' && (
-    er.code === 'ELOOP' ||
-    er.code === 'ENOMEM' ||
-    er.code === 'ENAMETOOLONG'
-  )
-}
-
-function realpath (p, cache, cb) {
-  if (ok) {
-    return origRealpath(p, cache, cb)
-  }
-
-  if (typeof cache === 'function') {
-    cb = cache
-    cache = null
-  }
-  origRealpath(p, cache, function (er, result) {
-    if (newError(er)) {
-      old.realpath(p, cache, cb)
-    } else {
-      cb(er, result)
-    }
-  })
-}
-
-function realpathSync (p, cache) {
-  if (ok) {
-    return origRealpathSync(p, cache)
-  }
-
-  try {
-    return origRealpathSync(p, cache)
-  } catch (er) {
-    if (newError(er)) {
-      return old.realpathSync(p, cache)
-    } else {
-      throw er
-    }
-  }
-}
-
-function monkeypatch () {
-  fs.realpath = realpath
-  fs.realpathSync = realpathSync
-}
-
-function unmonkeypatch () {
-  fs.realpath = origRealpath
-  fs.realpathSync = origRealpathSync
-}
-
-
-/***/ }),
-/* 141 */
-/***/ (function(module, exports, __webpack_require__) {
-
-exports.alphasort = alphasort
-exports.alphasorti = alphasorti
-exports.setopts = setopts
-exports.ownProp = ownProp
-exports.makeAbs = makeAbs
-exports.finish = finish
-exports.mark = mark
-exports.isIgnored = isIgnored
-exports.childrenIgnored = childrenIgnored
-
-function ownProp (obj, field) {
-  return Object.prototype.hasOwnProperty.call(obj, field)
-}
-
-var path = __webpack_require__(0)
-var minimatch = __webpack_require__(82)
-var isAbsolute = __webpack_require__(101)
-var Minimatch = minimatch.Minimatch
-
-function alphasorti (a, b) {
-  return a.toLowerCase().localeCompare(b.toLowerCase())
-}
-
-function alphasort (a, b) {
-  return a.localeCompare(b)
-}
-
-function setupIgnores (self, options) {
-  self.ignore = options.ignore || []
-
-  if (!Array.isArray(self.ignore))
-    self.ignore = [self.ignore]
-
-  if (self.ignore.length) {
-    self.ignore = self.ignore.map(ignoreMap)
-  }
-}
-
-// ignore patterns are always in dot:true mode.
-function ignoreMap (pattern) {
-  var gmatcher = null
-  if (pattern.slice(-3) === '/**') {
-    var gpattern = pattern.replace(/(\/\*\*)+$/, '')
-    gmatcher = new Minimatch(gpattern, { dot: true })
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-  return {
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-
-function setopts (self, pattern, options) {
-  if (!options)
-    options = {}
-
-  // base-matching: just use globstar for that.
-  if (options.matchBase && -1 === pattern.indexOf("/")) {
-    if (options.noglobstar) {
-      throw new Error("base matching requires globstar")
-    }
-    pattern = "**/" + pattern
-  }
-
-  self.silent = !!options.silent
-  self.pattern = pattern
-  self.strict = options.strict !== false
-  self.realpath = !!options.realpath
-  self.realpathCache = options.realpathCache || Object.create(null)
-  self.follow = !!options.follow
-  self.dot = !!options.dot
-  self.mark = !!options.mark
-  self.nodir = !!options.nodir
-  if (self.nodir)
-    self.mark = true
-  self.sync = !!options.sync
-  self.nounique = !!options.nounique
-  self.nonull = !!options.nonull
-  self.nosort = !!options.nosort
-  self.nocase = !!options.nocase
-  self.stat = !!options.stat
-  self.noprocess = !!options.noprocess
-  self.absolute = !!options.absolute
-
-  self.maxLength = options.maxLength || Infinity
-  self.cache = options.cache || Object.create(null)
-  self.statCache = options.statCache || Object.create(null)
-  self.symlinks = options.symlinks || Object.create(null)
-
-  setupIgnores(self, options)
-
-  self.changedCwd = false
-  var cwd = process.cwd()
-  if (!ownProp(options, "cwd"))
-    self.cwd = cwd
-  else {
-    self.cwd = path.resolve(options.cwd)
-    self.changedCwd = self.cwd !== cwd
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-  self.root = options.root || path.resolve(self.cwd, "/")
-  self.root = path.resolve(self.root)
-  if (process.platform === "win32")
-    self.root = self.root.replace(/\\/g, "/")
-
-  // TODO: is an absolute `cwd` supposed to be resolved against `root`?
-  // e.g. { cwd: '/test', root: __dirname } === path.join(__dirname, '/test')
-  self.cwdAbs = isAbsolute(self.cwd) ? self.cwd : makeAbs(self, self.cwd)
-  if (process.platform === "win32")
-    self.cwdAbs = self.cwdAbs.replace(/\\/g, "/")
-  self.nomount = !!options.nomount
-
-  // disable comments and negation in Minimatch.
-  // Note that they are not supported in Glob itself anyway.
-  options.nonegate = true
-  options.nocomment = true
-
-  self.minimatch = new Minimatch(pattern, options)
-  self.options = self.minimatch.options
-}
-
-function finish (self) {
-  var nou = self.nounique
-  var all = nou ? [] : Object.create(null)
-
-  for (var i = 0, l = self.matches.length; i < l; i ++) {
-    var matches = self.matches[i]
-    if (!matches || Object.keys(matches).length === 0) {
-      if (self.nonull) {
-        // do like the shell, and spit out the literal glob
-        var literal = self.minimatch.globSet[i]
-        if (nou)
-          all.push(literal)
-        else
-          all[literal] = true
-      }
-    } else {
-      // had matches
-      var m = Object.keys(matches)
-      if (nou)
-        all.push.apply(all, m)
-      else
-        m.forEach(function (m) {
-          all[m] = true
-        })
-    }
-  }
-
-  if (!nou)
-    all = Object.keys(all)
-
-  if (!self.nosort)
-    all = all.sort(self.nocase ? alphasorti : alphasort)
-
-  // at *some* point we statted all of these
-  if (self.mark) {
-    for (var i = 0; i < all.length; i++) {
-      all[i] = self._mark(all[i])
-    }
-    if (self.nodir) {
-      all = all.filter(function (e) {
-        var notDir = !(/\/$/.test(e))
-        var c = self.cache[e] || self.cache[makeAbs(self, e)]
-        if (notDir && c)
-          notDir = c !== 'DIR' && !Array.isArray(c)
-        return notDir
-      })
-    }
-  }
-
-  if (self.ignore.length)
-    all = all.filter(function(m) {
-      return !isIgnored(self, m)
-    })
-
-  self.found = all
-}
-
-function mark (self, p) {
-  var abs = makeAbs(self, p)
-  var c = self.cache[abs]
-  var m = p
-  if (c) {
-    var isDir = c === 'DIR' || Array.isArray(c)
-    var slash = p.slice(-1) === '/'
-
-    if (isDir && !slash)
-      m += '/'
-    else if (!isDir && slash)
-      m = m.slice(0, -1)
-
-    if (m !== p) {
-      var mabs = makeAbs(self, m)
-      self.statCache[mabs] = self.statCache[abs]
-      self.cache[mabs] = self.cache[abs]
-    }
-  }
-
-  return m
-}
-
-// lotta situps...
-function makeAbs (self, f) {
-  var abs = f
-  if (f.charAt(0) === '/') {
-    abs = path.join(self.root, f)
-  } else if (isAbsolute(f) || f === '') {
-    abs = f
-  } else if (self.changedCwd) {
-    abs = path.resolve(self.cwd, f)
-  } else {
-    abs = path.resolve(f)
-  }
-
-  if (process.platform === 'win32')
-    abs = abs.replace(/\\/g, '/')
-
-  return abs
-}
-
-
-// Return true, if pattern ends with globstar '**', for the accompanying parent directory.
-// Ex:- If node_modules/** is the pattern, add 'node_modules' to ignore list along with it's contents
-function isIgnored (self, path) {
-  if (!self.ignore.length)
-    return false
-
-  return self.ignore.some(function(item) {
-    return item.matcher.match(path) || !!(item.gmatcher && item.gmatcher.match(path))
-  })
-}
-
-function childrenIgnored (self, path) {
-  if (!self.ignore.length)
-    return false
-
-  return self.ignore.some(function(item) {
-    return !!(item.gmatcher && item.gmatcher.match(path))
-  })
-}
-
-
-/***/ }),
-/* 142 */
-/***/ (function(module, exports) {
-
-
-module.exports = function(det, rec, confidence, name, lang) {
-  this.confidence = confidence;
-  this.name = name || rec.name(det);
-  this.lang = lang;
-};
-
-
-/***/ }),
-/* 143 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Standard YAML's Core schema.
-// http://www.yaml.org/spec/1.2/spec.html#id2804923
-//
-// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
-// So, Core schema has no distinctions from JSON schema is JS-YAML.
-
-
-
-
-
-var Schema = __webpack_require__(44);
-
-
-module.exports = new Schema({
-  include: [
-    __webpack_require__(144)
-  ]
-});
-
-
-/***/ }),
-/* 144 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Standard YAML's JSON schema.
-// http://www.yaml.org/spec/1.2/spec.html#id2803231
-//
-// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
-// So, this schema is not such strict as defined in the YAML specification.
-// It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.
-
-
-
-
-
-var Schema = __webpack_require__(44);
-
-
-module.exports = new Schema({
-  include: [
-    __webpack_require__(100)
-  ],
-  implicit: [
-    __webpack_require__(293),
-    __webpack_require__(285),
-    __webpack_require__(287),
-    __webpack_require__(286)
-  ]
-});
-
-
-/***/ }),
-/* 145 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var path = __webpack_require__(0);
-var fs = __webpack_require__(5);
-var _0777 = parseInt('0777', 8);
-
-module.exports = mkdirP.mkdirp = mkdirP.mkdirP = mkdirP;
-
-function mkdirP (p, opts, f, made) {
-    if (typeof opts === 'function') {
-        f = opts;
-        opts = {};
-    }
-    else if (!opts || typeof opts !== 'object') {
-        opts = { mode: opts };
-    }
-    
-    var mode = opts.mode;
-    var xfs = opts.fs || fs;
-    
-    if (mode === undefined) {
-        mode = _0777 & (~process.umask());
-    }
-    if (!made) made = null;
-    
-    var cb = f || function () {};
-    p = path.resolve(p);
-    
-    xfs.mkdir(p, mode, function (er) {
-        if (!er) {
-            made = made || p;
-            return cb(null, made);
-        }
-        switch (er.code) {
-            case 'ENOENT':
-                mkdirP(path.dirname(p), opts, function (er, made) {
-                    if (er) cb(er, made);
-                    else mkdirP(p, opts, cb, made);
-                });
-                break;
-
-            // In the case of any other error, just see if there's a dir
-            // there already.  If so, then hooray!  If not, then something
-            // is borked.
-            default:
-                xfs.stat(p, function (er2, stat) {
-                    // if the stat fails, then that's super weird.
-                    // let the original error be the failure reason.
-                    if (er2 || !stat.isDirectory()) cb(er, made)
-                    else cb(null, made);
-                });
-                break;
-        }
-    });
-}
-
-mkdirP.sync = function sync (p, opts, made) {
-    if (!opts || typeof opts !== 'object') {
-        opts = { mode: opts };
-    }
-    
-    var mode = opts.mode;
-    var xfs = opts.fs || fs;
-    
-    if (mode === undefined) {
-        mode = _0777 & (~process.umask());
-    }
-    if (!made) made = null;
-
-    p = path.resolve(p);
-
-    try {
-        xfs.mkdirSync(p, mode);
-        made = made || p;
-    }
-    catch (err0) {
-        switch (err0.code) {
-            case 'ENOENT' :
-                made = sync(path.dirname(p), opts, made);
-                sync(p, opts, made);
-                break;
-
-            // In the case of any other error, just see if there's a dir
-            // there already.  If so, then hooray!  If not, then something
-            // is borked.
-            default:
-                var stat;
-                try {
-                    stat = xfs.statSync(p);
-                }
-                catch (err1) {
-                    throw err0;
-                }
-                if (!stat.isDirectory()) throw err0;
-                break;
-        }
-    }
-
-    return made;
-};
-
-
-/***/ }),
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-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = defaultIfEmpty;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
-/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
-
-
-function defaultIfEmpty(defaultValue) {
-    if (defaultValue === void 0) {
-        defaultValue = null;
-    }
-    return function (source) { return source.lift(new DefaultIfEmptyOperator(defaultValue)); };
-}
-var DefaultIfEmptyOperator = /*@__PURE__*/ (function () {
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-    }
-    DefaultIfEmptyOperator.prototype.call = function (subscriber, source) {
-        return source.subscribe(new DefaultIfEmptySubscriber(subscriber, this.defaultValue));
-    };
-    return DefaultIfEmptyOperator;
-}());
-var DefaultIfEmptySubscriber = /*@__PURE__*/ (function (_super) {
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-        _this.defaultValue = defaultValue;
-        _this.isEmpty = true;
-        return _this;
-    }
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-        this.isEmpty = false;
-        this.destination.next(value);
-    };
-    DefaultIfEmptySubscriber.prototype._complete = function () {
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-            this.destination.next(this.defaultValue);
-        }
-        this.destination.complete();
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-
-/***/ }),
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-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
-/** PURE_IMPORTS_START tslib,_Subscriber PURE_IMPORTS_END */
-
-
-function filter(predicate, thisArg) {
-    return function filterOperatorFunction(source) {
-        return source.lift(new FilterOperator(predicate, thisArg));
-    };
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-        this.predicate = predicate;
-        this.thisArg = thisArg;
-    }
-    FilterOperator.prototype.call = function (subscriber, source) {
-        return source.subscribe(new FilterSubscriber(subscriber, this.predicate, this.thisArg));
-    };
-    return FilterOperator;
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-var FilterSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](FilterSubscriber, _super);
-    function FilterSubscriber(destination, predicate, thisArg) {
-        var _this = _super.call(this, destination) || this;
-        _this.predicate = predicate;
-        _this.thisArg = thisArg;
-        _this.count = 0;
-        return _this;
-    }
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-            result = this.predicate.call(this.thisArg, value, this.count++);
-        }
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-            this.destination.error(err);
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-            this.destination.next(value);
-        }
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-
-/***/ }),
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-"use strict";
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-
-
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-
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-function mergeMap(project, resultSelector, concurrent) {
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-        concurrent = Number.POSITIVE_INFINITY;
-    }
-    if (typeof resultSelector === 'function') {
-        return function (source) { return source.pipe(mergeMap(function (a, i) { return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_5__observable_from__["a" /* from */])(project(a, i)).pipe(__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_4__map__["a" /* map */])(function (b, ii) { return resultSelector(a, b, i, ii); })); }, concurrent)); };
-    }
-    else if (typeof resultSelector === 'number') {
-        concurrent = resultSelector;
-    }
-    return function (source) { return source.lift(new MergeMapOperator(project, concurrent)); };
-}
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-        if (concurrent === void 0) {
-            concurrent = Number.POSITIVE_INFINITY;
-        }
-        this.project = project;
-        this.concurrent = concurrent;
-    }
-    MergeMapOperator.prototype.call = function (observer, source) {
-        return source.subscribe(new MergeMapSubscriber(observer, this.project, this.concurrent));
-    };
-    return MergeMapOperator;
-}());
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-var MergeMapSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](MergeMapSubscriber, _super);
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-        if (concurrent === void 0) {
-            concurrent = Number.POSITIVE_INFINITY;
-        }
-        var _this = _super.call(this, destination) || this;
-        _this.project = project;
-        _this.concurrent = concurrent;
-        _this.hasCompleted = false;
-        _this.buffer = [];
-        _this.active = 0;
-        _this.index = 0;
-        return _this;
-    }
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-            this._tryNext(value);
-        }
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-        }
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-        var result;
-        var index = this.index++;
-        try {
-            result = this.project(value, index);
-        }
-        catch (err) {
-            this.destination.error(err);
-            return;
-        }
-        this.active++;
-        this._innerSub(result, value, index);
-    };
-    MergeMapSubscriber.prototype._innerSub = function (ish, value, index) {
-        var innerSubscriber = new __WEBPACK_IMPORTED_MODULE_3__InnerSubscriber__["a" /* InnerSubscriber */](this, undefined, undefined);
-        var destination = this.destination;
-        destination.add(innerSubscriber);
-        __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_subscribeToResult__["a" /* subscribeToResult */])(this, ish, value, index, innerSubscriber);
-    };
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-        this.hasCompleted = true;
-        if (this.active === 0 && this.buffer.length === 0) {
-            this.destination.complete();
-        }
-        this.unsubscribe();
-    };
-    MergeMapSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
-        this.destination.next(innerValue);
-    };
-    MergeMapSubscriber.prototype.notifyComplete = function (innerSub) {
-        var buffer = this.buffer;
-        this.remove(innerSub);
-        this.active--;
-        if (buffer.length > 0) {
-            this._next(buffer.shift());
-        }
-        else if (this.active === 0 && this.hasCompleted) {
-            this.destination.complete();
-        }
-    };
-    return MergeMapSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_2__OuterSubscriber__["a" /* OuterSubscriber */]));
-
-//# sourceMappingURL=mergeMap.js.map
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-
-/***/ }),
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-/***/ (function(module, __webpack_exports__, __webpack_require__) {
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-"use strict";
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
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-var AsyncAction = /*@__PURE__*/ (function (_super) {
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-        _this.scheduler = scheduler;
-        _this.work = work;
-        _this.pending = false;
-        return _this;
-    }
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-        if (delay === void 0) {
-            delay = 0;
-        }
-        if (this.closed) {
-            return this;
-        }
-        this.state = state;
-        var id = this.id;
-        var scheduler = this.scheduler;
-        if (id != null) {
-            this.id = this.recycleAsyncId(scheduler, id, delay);
-        }
-        this.pending = true;
-        this.delay = delay;
-        this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);
-        return this;
-    };
-    AsyncAction.prototype.requestAsyncId = function (scheduler, id, delay) {
-        if (delay === void 0) {
-            delay = 0;
-        }
-        return setInterval(scheduler.flush.bind(scheduler, this), delay);
-    };
-    AsyncAction.prototype.recycleAsyncId = function (scheduler, id, delay) {
-        if (delay === void 0) {
-            delay = 0;
-        }
-        if (delay !== null && this.delay === delay && this.pending === false) {
-            return id;
-        }
-        clearInterval(id);
-    };
-    AsyncAction.prototype.execute = function (state, delay) {
-        if (this.closed) {
-            return new Error('executing a cancelled action');
-        }
-        this.pending = false;
-        var error = this._execute(state, delay);
-        if (error) {
-            return error;
-        }
-        else if (this.pending === false && this.id != null) {
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-    };
-    AsyncAction.prototype._execute = function (state, delay) {
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-        var errorValue = undefined;
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-        }
-        catch (e) {
-            errored = true;
-            errorValue = !!e && e || new Error(e);
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-        }
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-        var scheduler = this.scheduler;
-        var actions = scheduler.actions;
-        var index = actions.indexOf(this);
-        this.work = null;
-        this.state = null;
-        this.pending = false;
-        this.scheduler = null;
-        if (index !== -1) {
-            actions.splice(index, 1);
-        }
-        if (id != null) {
-            this.id = this.recycleAsyncId(scheduler, id, null);
-        }
-        this.delay = null;
-    };
-    return AsyncAction;
-}(__WEBPACK_IMPORTED_MODULE_1__Action__["a" /* Action */]));
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-//# sourceMappingURL=AsyncAction.js.map
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-
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-"use strict";
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Scheduler__ = __webpack_require__(421);
-/** PURE_IMPORTS_START tslib,_Scheduler PURE_IMPORTS_END */
-
-
-var AsyncScheduler = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](AsyncScheduler, _super);
-    function AsyncScheduler(SchedulerAction, now) {
-        if (now === void 0) {
-            now = __WEBPACK_IMPORTED_MODULE_1__Scheduler__["a" /* Scheduler */].now;
-        }
-        var _this = _super.call(this, SchedulerAction, function () {
-            if (AsyncScheduler.delegate && AsyncScheduler.delegate !== _this) {
-                return AsyncScheduler.delegate.now();
-            }
-            else {
-                return now();
-            }
-        }) || this;
-        _this.actions = [];
-        _this.active = false;
-        _this.scheduled = undefined;
-        return _this;
-    }
-    AsyncScheduler.prototype.schedule = function (work, delay, state) {
-        if (delay === void 0) {
-            delay = 0;
-        }
-        if (AsyncScheduler.delegate && AsyncScheduler.delegate !== this) {
-            return AsyncScheduler.delegate.schedule(work, delay, state);
-        }
-        else {
-            return _super.prototype.schedule.call(this, work, delay, state);
-        }
-    };
-    AsyncScheduler.prototype.flush = function (action) {
-        var actions = this.actions;
-        if (this.active) {
-            actions.push(action);
-            return;
-        }
-        var error;
-        this.active = true;
-        do {
-            if (error = action.execute(action.state, action.delay)) {
-                break;
-            }
-        } while (action = actions.shift());
-        this.active = false;
-        if (error) {
-            while (action = actions.shift()) {
-                action.unsubscribe();
-            }
-            throw error;
-        }
-    };
-    return AsyncScheduler;
-}(__WEBPACK_IMPORTED_MODULE_1__Scheduler__["a" /* Scheduler */]));
-
-//# sourceMappingURL=AsyncScheduler.js.map
-
-
-/***/ }),
-/* 151 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* unused harmony export getSymbolIterator */
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return iterator; });
-/* unused harmony export $$iterator */
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function getSymbolIterator() {
-    if (typeof Symbol !== 'function' || !Symbol.iterator) {
-        return '@@iterator';
-    }
-    return Symbol.iterator;
-}
-var iterator = /*@__PURE__*/ getSymbolIterator();
-var $$iterator = iterator;
-//# sourceMappingURL=iterator.js.map
-
-
-/***/ }),
-/* 152 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return ArgumentOutOfRangeError; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function ArgumentOutOfRangeErrorImpl() {
-    Error.call(this);
-    this.message = 'argument out of range';
-    this.name = 'ArgumentOutOfRangeError';
-    return this;
-}
-ArgumentOutOfRangeErrorImpl.prototype = /*@__PURE__*/ Object.create(Error.prototype);
-var ArgumentOutOfRangeError = ArgumentOutOfRangeErrorImpl;
-//# sourceMappingURL=ArgumentOutOfRangeError.js.map
-
-
-/***/ }),
-/* 153 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return EmptyError; });
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function EmptyErrorImpl() {
-    Error.call(this);
-    this.message = 'no elements in sequence';
-    this.name = 'EmptyError';
-    return this;
-}
-EmptyErrorImpl.prototype = /*@__PURE__*/ Object.create(Error.prototype);
-var EmptyError = EmptyErrorImpl;
-//# sourceMappingURL=EmptyError.js.map
-
-
-/***/ }),
-/* 154 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = isFunction;
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function isFunction(x) {
-    return typeof x === 'function';
-}
-//# sourceMappingURL=isFunction.js.map
-
-
-/***/ }),
-/* 155 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2016 Joyent, Inc.
-
-module.exports = Certificate;
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var Fingerprint = __webpack_require__(156);
-var Signature = __webpack_require__(75);
-var errs = __webpack_require__(74);
-var util = __webpack_require__(3);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var Identity = __webpack_require__(158);
-
-var formats = {};
-formats['openssh'] = __webpack_require__(940);
-formats['x509'] = __webpack_require__(457);
-formats['pem'] = __webpack_require__(941);
-
-var CertificateParseError = errs.CertificateParseError;
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-
-function Certificate(opts) {
-	assert.object(opts, 'options');
-	assert.arrayOfObject(opts.subjects, 'options.subjects');
-	utils.assertCompatible(opts.subjects[0], Identity, [1, 0],
-	    'options.subjects');
-	utils.assertCompatible(opts.subjectKey, Key, [1, 0],
-	    'options.subjectKey');
-	utils.assertCompatible(opts.issuer, Identity, [1, 0], 'options.issuer');
-	if (opts.issuerKey !== undefined) {
-		utils.assertCompatible(opts.issuerKey, Key, [1, 0],
-		    'options.issuerKey');
-	}
-	assert.object(opts.signatures, 'options.signatures');
-	assert.buffer(opts.serial, 'options.serial');
-	assert.date(opts.validFrom, 'options.validFrom');
-	assert.date(opts.validUntil, 'optons.validUntil');
-
-	assert.optionalArrayOfString(opts.purposes, 'options.purposes');
-
-	this._hashCache = {};
-
-	this.subjects = opts.subjects;
-	this.issuer = opts.issuer;
-	this.subjectKey = opts.subjectKey;
-	this.issuerKey = opts.issuerKey;
-	this.signatures = opts.signatures;
-	this.serial = opts.serial;
-	this.validFrom = opts.validFrom;
-	this.validUntil = opts.validUntil;
-	this.purposes = opts.purposes;
-}
-
-Certificate.formats = formats;
-
-Certificate.prototype.toBuffer = function (format, options) {
-	if (format === undefined)
-		format = 'x509';
-	assert.string(format, 'format');
-	assert.object(formats[format], 'formats[format]');
-	assert.optionalObject(options, 'options');
-
-	return (formats[format].write(this, options));
-};
-
-Certificate.prototype.toString = function (format, options) {
-	if (format === undefined)
-		format = 'pem';
-	return (this.toBuffer(format, options).toString());
-};
-
-Certificate.prototype.fingerprint = function (algo) {
-	if (algo === undefined)
-		algo = 'sha256';
-	assert.string(algo, 'algorithm');
-	var opts = {
-		type: 'certificate',
-		hash: this.hash(algo),
-		algorithm: algo
-	};
-	return (new Fingerprint(opts));
-};
-
-Certificate.prototype.hash = function (algo) {
-	assert.string(algo, 'algorithm');
-	algo = algo.toLowerCase();
-	if (algs.hashAlgs[algo] === undefined)
-		throw (new InvalidAlgorithmError(algo));
-
-	if (this._hashCache[algo])
-		return (this._hashCache[algo]);
-
-	var hash = crypto.createHash(algo).
-	    update(this.toBuffer('x509')).digest();
-	this._hashCache[algo] = hash;
-	return (hash);
-};
-
-Certificate.prototype.isExpired = function (when) {
-	if (when === undefined)
-		when = new Date();
-	return (!((when.getTime() >= this.validFrom.getTime()) &&
-		(when.getTime() < this.validUntil.getTime())));
-};
-
-Certificate.prototype.isSignedBy = function (issuerCert) {
-	utils.assertCompatible(issuerCert, Certificate, [1, 0], 'issuer');
-
-	if (!this.issuer.equals(issuerCert.subjects[0]))
-		return (false);
-	if (this.issuer.purposes && this.issuer.purposes.length > 0 &&
-	    this.issuer.purposes.indexOf('ca') === -1) {
-		return (false);
-	}
-
-	return (this.isSignedByKey(issuerCert.subjectKey));
-};
-
-Certificate.prototype.isSignedByKey = function (issuerKey) {
-	utils.assertCompatible(issuerKey, Key, [1, 2], 'issuerKey');
-
-	if (this.issuerKey !== undefined) {
-		return (this.issuerKey.
-		    fingerprint('sha512').matches(issuerKey));
-	}
-
-	var fmt = Object.keys(this.signatures)[0];
-	var valid = formats[fmt].verify(this, issuerKey);
-	if (valid)
-		this.issuerKey = issuerKey;
-	return (valid);
-};
-
-Certificate.prototype.signWith = function (key) {
-	utils.assertCompatible(key, PrivateKey, [1, 2], 'key');
-	var fmts = Object.keys(formats);
-	var didOne = false;
-	for (var i = 0; i < fmts.length; ++i) {
-		if (fmts[i] !== 'pem') {
-			var ret = formats[fmts[i]].sign(this, key);
-			if (ret === true)
-				didOne = true;
-		}
-	}
-	if (!didOne) {
-		throw (new Error('Failed to sign the certificate for any ' +
-		    'available certificate formats'));
-	}
-};
-
-Certificate.createSelfSigned = function (subjectOrSubjects, key, options) {
-	var subjects;
-	if (Array.isArray(subjectOrSubjects))
-		subjects = subjectOrSubjects;
-	else
-		subjects = [subjectOrSubjects];
-
-	assert.arrayOfObject(subjects);
-	subjects.forEach(function (subject) {
-		utils.assertCompatible(subject, Identity, [1, 0], 'subject');
-	});
-
-	utils.assertCompatible(key, PrivateKey, [1, 2], 'private key');
-
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	assert.optionalObject(options.validFrom, 'options.validFrom');
-	assert.optionalObject(options.validUntil, 'options.validUntil');
-	var validFrom = options.validFrom;
-	var validUntil = options.validUntil;
-	if (validFrom === undefined)
-		validFrom = new Date();
-	if (validUntil === undefined) {
-		assert.optionalNumber(options.lifetime, 'options.lifetime');
-		var lifetime = options.lifetime;
-		if (lifetime === undefined)
-			lifetime = 10*365*24*3600;
-		validUntil = new Date();
-		validUntil.setTime(validUntil.getTime() + lifetime*1000);
-	}
-	assert.optionalBuffer(options.serial, 'options.serial');
-	var serial = options.serial;
-	if (serial === undefined)
-		serial = Buffer.from('0000000000000001', 'hex');
-
-	var purposes = options.purposes;
-	if (purposes === undefined)
-		purposes = [];
-
-	if (purposes.indexOf('signature') === -1)
-		purposes.push('signature');
-
-	/* Self-signed certs are always CAs. */
-	if (purposes.indexOf('ca') === -1)
-		purposes.push('ca');
-	if (purposes.indexOf('crl') === -1)
-		purposes.push('crl');
-
-	/*
-	 * If we weren't explicitly given any other purposes, do the sensible
-	 * thing and add some basic ones depending on the subject type.
-	 */
-	if (purposes.length <= 3) {
-		var hostSubjects = subjects.filter(function (subject) {
-			return (subject.type === 'host');
-		});
-		var userSubjects = subjects.filter(function (subject) {
-			return (subject.type === 'user');
-		});
-		if (hostSubjects.length > 0) {
-			if (purposes.indexOf('serverAuth') === -1)
-				purposes.push('serverAuth');
-		}
-		if (userSubjects.length > 0) {
-			if (purposes.indexOf('clientAuth') === -1)
-				purposes.push('clientAuth');
-		}
-		if (userSubjects.length > 0 || hostSubjects.length > 0) {
-			if (purposes.indexOf('keyAgreement') === -1)
-				purposes.push('keyAgreement');
-			if (key.type === 'rsa' &&
-			    purposes.indexOf('encryption') === -1)
-				purposes.push('encryption');
-		}
-	}
-
-	var cert = new Certificate({
-		subjects: subjects,
-		issuer: subjects[0],
-		subjectKey: key.toPublic(),
-		issuerKey: key.toPublic(),
-		signatures: {},
-		serial: serial,
-		validFrom: validFrom,
-		validUntil: validUntil,
-		purposes: purposes
-	});
-	cert.signWith(key);
-
-	return (cert);
-};
-
-Certificate.create =
-    function (subjectOrSubjects, key, issuer, issuerKey, options) {
-	var subjects;
-	if (Array.isArray(subjectOrSubjects))
-		subjects = subjectOrSubjects;
-	else
-		subjects = [subjectOrSubjects];
-
-	assert.arrayOfObject(subjects);
-	subjects.forEach(function (subject) {
-		utils.assertCompatible(subject, Identity, [1, 0], 'subject');
-	});
-
-	utils.assertCompatible(key, Key, [1, 0], 'key');
-	if (PrivateKey.isPrivateKey(key))
-		key = key.toPublic();
-	utils.assertCompatible(issuer, Identity, [1, 0], 'issuer');
-	utils.assertCompatible(issuerKey, PrivateKey, [1, 2], 'issuer key');
-
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	assert.optionalObject(options.validFrom, 'options.validFrom');
-	assert.optionalObject(options.validUntil, 'options.validUntil');
-	var validFrom = options.validFrom;
-	var validUntil = options.validUntil;
-	if (validFrom === undefined)
-		validFrom = new Date();
-	if (validUntil === undefined) {
-		assert.optionalNumber(options.lifetime, 'options.lifetime');
-		var lifetime = options.lifetime;
-		if (lifetime === undefined)
-			lifetime = 10*365*24*3600;
-		validUntil = new Date();
-		validUntil.setTime(validUntil.getTime() + lifetime*1000);
-	}
-	assert.optionalBuffer(options.serial, 'options.serial');
-	var serial = options.serial;
-	if (serial === undefined)
-		serial = Buffer.from('0000000000000001', 'hex');
-
-	var purposes = options.purposes;
-	if (purposes === undefined)
-		purposes = [];
-
-	if (purposes.indexOf('signature') === -1)
-		purposes.push('signature');
-
-	if (options.ca === true) {
-		if (purposes.indexOf('ca') === -1)
-			purposes.push('ca');
-		if (purposes.indexOf('crl') === -1)
-			purposes.push('crl');
-	}
-
-	var hostSubjects = subjects.filter(function (subject) {
-		return (subject.type === 'host');
-	});
-	var userSubjects = subjects.filter(function (subject) {
-		return (subject.type === 'user');
-	});
-	if (hostSubjects.length > 0) {
-		if (purposes.indexOf('serverAuth') === -1)
-			purposes.push('serverAuth');
-	}
-	if (userSubjects.length > 0) {
-		if (purposes.indexOf('clientAuth') === -1)
-			purposes.push('clientAuth');
-	}
-	if (userSubjects.length > 0 || hostSubjects.length > 0) {
-		if (purposes.indexOf('keyAgreement') === -1)
-			purposes.push('keyAgreement');
-		if (key.type === 'rsa' &&
-		    purposes.indexOf('encryption') === -1)
-			purposes.push('encryption');
-	}
-
-	var cert = new Certificate({
-		subjects: subjects,
-		issuer: issuer,
-		subjectKey: key,
-		issuerKey: issuerKey.toPublic(),
-		signatures: {},
-		serial: serial,
-		validFrom: validFrom,
-		validUntil: validUntil,
-		purposes: purposes
-	});
-	cert.signWith(issuerKey);
-
-	return (cert);
-};
-
-Certificate.parse = function (data, format, options) {
-	if (typeof (data) !== 'string')
-		assert.buffer(data, 'data');
-	if (format === undefined)
-		format = 'auto';
-	assert.string(format, 'format');
-	if (typeof (options) === 'string')
-		options = { filename: options };
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	assert.optionalString(options.filename, 'options.filename');
-	if (options.filename === undefined)
-		options.filename = '(unnamed)';
-
-	assert.object(formats[format], 'formats[format]');
-
-	try {
-		var k = formats[format].read(data, options);
-		return (k);
-	} catch (e) {
-		throw (new CertificateParseError(options.filename, format, e));
-	}
-};
-
-Certificate.isCertificate = function (obj, ver) {
-	return (utils.isCompatible(obj, Certificate, ver));
-};
-
-/*
- * API versions for Certificate:
- * [1,0] -- initial ver
- */
-Certificate.prototype._sshpkApiVersion = [1, 0];
-
-Certificate._oldVersionDetect = function (obj) {
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 156 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = Fingerprint;
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var errs = __webpack_require__(74);
-var Key = __webpack_require__(27);
-var Certificate = __webpack_require__(155);
-var utils = __webpack_require__(26);
-
-var FingerprintFormatError = errs.FingerprintFormatError;
-var InvalidAlgorithmError = errs.InvalidAlgorithmError;
-
-function Fingerprint(opts) {
-	assert.object(opts, 'options');
-	assert.string(opts.type, 'options.type');
-	assert.buffer(opts.hash, 'options.hash');
-	assert.string(opts.algorithm, 'options.algorithm');
-
-	this.algorithm = opts.algorithm.toLowerCase();
-	if (algs.hashAlgs[this.algorithm] !== true)
-		throw (new InvalidAlgorithmError(this.algorithm));
-
-	this.hash = opts.hash;
-	this.type = opts.type;
-}
-
-Fingerprint.prototype.toString = function (format) {
-	if (format === undefined) {
-		if (this.algorithm === 'md5')
-			format = 'hex';
-		else
-			format = 'base64';
-	}
-	assert.string(format);
-
-	switch (format) {
-	case 'hex':
-		return (addColons(this.hash.toString('hex')));
-	case 'base64':
-		return (sshBase64Format(this.algorithm,
-		    this.hash.toString('base64')));
-	default:
-		throw (new FingerprintFormatError(undefined, format));
-	}
-};
-
-Fingerprint.prototype.matches = function (other) {
-	assert.object(other, 'key or certificate');
-	if (this.type === 'key') {
-		utils.assertCompatible(other, Key, [1, 0], 'key');
-	} else {
-		utils.assertCompatible(other, Certificate, [1, 0],
-		    'certificate');
-	}
-
-	var theirHash = other.hash(this.algorithm);
-	var theirHash2 = crypto.createHash(this.algorithm).
-	    update(theirHash).digest('base64');
-
-	if (this.hash2 === undefined)
-		this.hash2 = crypto.createHash(this.algorithm).
-		    update(this.hash).digest('base64');
-
-	return (this.hash2 === theirHash2);
-};
-
-Fingerprint.parse = function (fp, options) {
-	assert.string(fp, 'fingerprint');
-
-	var alg, hash, enAlgs;
-	if (Array.isArray(options)) {
-		enAlgs = options;
-		options = {};
-	}
-	assert.optionalObject(options, 'options');
-	if (options === undefined)
-		options = {};
-	if (options.enAlgs !== undefined)
-		enAlgs = options.enAlgs;
-	assert.optionalArrayOfString(enAlgs, 'algorithms');
-
-	var parts = fp.split(':');
-	if (parts.length == 2) {
-		alg = parts[0].toLowerCase();
-		/*JSSTYLED*/
-		var base64RE = /^[A-Za-z0-9+\/=]+$/;
-		if (!base64RE.test(parts[1]))
-			throw (new FingerprintFormatError(fp));
-		try {
-			hash = Buffer.from(parts[1], 'base64');
-		} catch (e) {
-			throw (new FingerprintFormatError(fp));
-		}
-	} else if (parts.length > 2) {
-		alg = 'md5';
-		if (parts[0].toLowerCase() === 'md5')
-			parts = parts.slice(1);
-		parts = parts.join('');
-		/*JSSTYLED*/
-		var md5RE = /^[a-fA-F0-9]+$/;
-		if (!md5RE.test(parts))
-			throw (new FingerprintFormatError(fp));
-		try {
-			hash = Buffer.from(parts, 'hex');
-		} catch (e) {
-			throw (new FingerprintFormatError(fp));
-		}
-	}
-
-	if (alg === undefined)
-		throw (new FingerprintFormatError(fp));
-
-	if (algs.hashAlgs[alg] === undefined)
-		throw (new InvalidAlgorithmError(alg));
-
-	if (enAlgs !== undefined) {
-		enAlgs = enAlgs.map(function (a) { return a.toLowerCase(); });
-		if (enAlgs.indexOf(alg) === -1)
-			throw (new InvalidAlgorithmError(alg));
-	}
-
-	return (new Fingerprint({
-		algorithm: alg,
-		hash: hash,
-		type: options.type || 'key'
-	}));
-};
-
-function addColons(s) {
-	/*JSSTYLED*/
-	return (s.replace(/(.{2})(?=.)/g, '$1:'));
-}
-
-function base64Strip(s) {
-	/*JSSTYLED*/
-	return (s.replace(/=*$/, ''));
-}
-
-function sshBase64Format(alg, h) {
-	return (alg.toUpperCase() + ':' + base64Strip(h));
-}
-
-Fingerprint.isFingerprint = function (obj, ver) {
-	return (utils.isCompatible(obj, Fingerprint, ver));
-};
-
-/*
- * API versions for Fingerprint:
- * [1,0] -- initial ver
- * [1,1] -- first tagged ver
- */
-Fingerprint.prototype._sshpkApiVersion = [1, 1];
-
-Fingerprint._oldVersionDetect = function (obj) {
-	assert.func(obj.toString);
-	assert.func(obj.matches);
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 157 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	readPkcs8: readPkcs8,
-	write: write,
-	writePkcs8: writePkcs8,
-
-	readECDSACurve: readECDSACurve,
-	writeECDSACurve: writeECDSACurve
-};
-
-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var pem = __webpack_require__(86);
-
-function read(buf, options) {
-	return (pem.read(buf, options, 'pkcs8'));
-}
-
-function write(key, options) {
-	return (pem.write(key, options, 'pkcs8'));
-}
-
-/* Helper to read in a single mpint */
-function readMPInt(der, nm) {
-	assert.strictEqual(der.peek(), asn1.Ber.Integer,
-	    nm + ' is not an Integer');
-	return (utils.mpNormalize(der.readString(asn1.Ber.Integer, true)));
-}
-
-function readPkcs8(alg, type, der) {
-	/* Private keys in pkcs#8 format have a weird extra int */
-	if (der.peek() === asn1.Ber.Integer) {
-		assert.strictEqual(type, 'private',
-		    'unexpected Integer at start of public key');
-		der.readString(asn1.Ber.Integer, true);
-	}
-
-	der.readSequence();
-	var next = der.offset + der.length;
-
-	var oid = der.readOID();
-	switch (oid) {
-	case '1.2.840.113549.1.1.1':
-		der._offset = next;
-		if (type === 'public')
-			return (readPkcs8RSAPublic(der));
-		else
-			return (readPkcs8RSAPrivate(der));
-	case '1.2.840.10040.4.1':
-		if (type === 'public')
-			return (readPkcs8DSAPublic(der));
-		else
-			return (readPkcs8DSAPrivate(der));
-	case '1.2.840.10045.2.1':
-		if (type === 'public')
-			return (readPkcs8ECDSAPublic(der));
-		else
-			return (readPkcs8ECDSAPrivate(der));
-	case '1.3.101.112':
-		if (type === 'public') {
-			return (readPkcs8EdDSAPublic(der));
-		} else {
-			return (readPkcs8EdDSAPrivate(der));
-		}
-	case '1.3.101.110':
-		if (type === 'public') {
-			return (readPkcs8X25519Public(der));
-		} else {
-			return (readPkcs8X25519Private(der));
-		}
-	default:
-		throw (new Error('Unknown key type OID ' + oid));
-	}
-}
-
-function readPkcs8RSAPublic(der) {
-	// bit string sequence
-	der.readSequence(asn1.Ber.BitString);
-	der.readByte();
-	der.readSequence();
-
-	// modulus
-	var n = readMPInt(der, 'modulus');
-	var e = readMPInt(der, 'exponent');
-
-	// now, make the key
-	var key = {
-		type: 'rsa',
-		source: der.originalInput,
-		parts: [
-			{ name: 'e', data: e },
-			{ name: 'n', data: n }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs8RSAPrivate(der) {
-	der.readSequence(asn1.Ber.OctetString);
-	der.readSequence();
-
-	var ver = readMPInt(der, 'version');
-	assert.equal(ver[0], 0x0, 'unknown RSA private key version');
-
-	// modulus then public exponent
-	var n = readMPInt(der, 'modulus');
-	var e = readMPInt(der, 'public exponent');
-	var d = readMPInt(der, 'private exponent');
-	var p = readMPInt(der, 'prime1');
-	var q = readMPInt(der, 'prime2');
-	var dmodp = readMPInt(der, 'exponent1');
-	var dmodq = readMPInt(der, 'exponent2');
-	var iqmp = readMPInt(der, 'iqmp');
-
-	// now, make the key
-	var key = {
-		type: 'rsa',
-		parts: [
-			{ name: 'n', data: n },
-			{ name: 'e', data: e },
-			{ name: 'd', data: d },
-			{ name: 'iqmp', data: iqmp },
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'dmodp', data: dmodp },
-			{ name: 'dmodq', data: dmodq }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs8DSAPublic(der) {
-	der.readSequence();
-
-	var p = readMPInt(der, 'p');
-	var q = readMPInt(der, 'q');
-	var g = readMPInt(der, 'g');
-
-	// bit string sequence
-	der.readSequence(asn1.Ber.BitString);
-	der.readByte();
-
-	var y = readMPInt(der, 'y');
-
-	// now, make the key
-	var key = {
-		type: 'dsa',
-		parts: [
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'g', data: g },
-			{ name: 'y', data: y }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs8DSAPrivate(der) {
-	der.readSequence();
-
-	var p = readMPInt(der, 'p');
-	var q = readMPInt(der, 'q');
-	var g = readMPInt(der, 'g');
-
-	der.readSequence(asn1.Ber.OctetString);
-	var x = readMPInt(der, 'x');
-
-	/* The pkcs#8 format does not include the public key */
-	var y = utils.calculateDSAPublic(g, p, x);
-
-	var key = {
-		type: 'dsa',
-		parts: [
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'g', data: g },
-			{ name: 'y', data: y },
-			{ name: 'x', data: x }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readECDSACurve(der) {
-	var curveName, curveNames;
-	var j, c, cd;
-
-	if (der.peek() === asn1.Ber.OID) {
-		var oid = der.readOID();
-
-		curveNames = Object.keys(algs.curves);
-		for (j = 0; j < curveNames.length; ++j) {
-			c = curveNames[j];
-			cd = algs.curves[c];
-			if (cd.pkcs8oid === oid) {
-				curveName = c;
-				break;
-			}
-		}
-
-	} else {
-		// ECParameters sequence
-		der.readSequence();
-		var version = der.readString(asn1.Ber.Integer, true);
-		assert.strictEqual(version[0], 1, 'ECDSA key not version 1');
-
-		var curve = {};
-
-		// FieldID sequence
-		der.readSequence();
-		var fieldTypeOid = der.readOID();
-		assert.strictEqual(fieldTypeOid, '1.2.840.10045.1.1',
-		    'ECDSA key is not from a prime-field');
-		var p = curve.p = utils.mpNormalize(
-		    der.readString(asn1.Ber.Integer, true));
-		/*
-		 * p always starts with a 1 bit, so count the zeros to get its
-		 * real size.
-		 */
-		curve.size = p.length * 8 - utils.countZeros(p);
-
-		// Curve sequence
-		der.readSequence();
-		curve.a = utils.mpNormalize(
-		    der.readString(asn1.Ber.OctetString, true));
-		curve.b = utils.mpNormalize(
-		    der.readString(asn1.Ber.OctetString, true));
-		if (der.peek() === asn1.Ber.BitString)
-			curve.s = der.readString(asn1.Ber.BitString, true);
-
-		// Combined Gx and Gy
-		curve.G = der.readString(asn1.Ber.OctetString, true);
-		assert.strictEqual(curve.G[0], 0x4,
-		    'uncompressed G is required');
-
-		curve.n = utils.mpNormalize(
-		    der.readString(asn1.Ber.Integer, true));
-		curve.h = utils.mpNormalize(
-		    der.readString(asn1.Ber.Integer, true));
-		assert.strictEqual(curve.h[0], 0x1, 'a cofactor=1 curve is ' +
-		    'required');
-
-		curveNames = Object.keys(algs.curves);
-		var ks = Object.keys(curve);
-		for (j = 0; j < curveNames.length; ++j) {
-			c = curveNames[j];
-			cd = algs.curves[c];
-			var equal = true;
-			for (var i = 0; i < ks.length; ++i) {
-				var k = ks[i];
-				if (cd[k] === undefined)
-					continue;
-				if (typeof (cd[k]) === 'object' &&
-				    cd[k].equals !== undefined) {
-					if (!cd[k].equals(curve[k])) {
-						equal = false;
-						break;
-					}
-				} else if (Buffer.isBuffer(cd[k])) {
-					if (cd[k].toString('binary')
-					    !== curve[k].toString('binary')) {
-						equal = false;
-						break;
-					}
-				} else {
-					if (cd[k] !== curve[k]) {
-						equal = false;
-						break;
-					}
-				}
-			}
-			if (equal) {
-				curveName = c;
-				break;
-			}
-		}
-	}
-	return (curveName);
-}
-
-function readPkcs8ECDSAPrivate(der) {
-	var curveName = readECDSACurve(der);
-	assert.string(curveName, 'a known elliptic curve');
-
-	der.readSequence(asn1.Ber.OctetString);
-	der.readSequence();
-
-	var version = readMPInt(der, 'version');
-	assert.equal(version[0], 1, 'unknown version of ECDSA key');
-
-	var d = der.readString(asn1.Ber.OctetString, true);
-	der.readSequence(0xa1);
-
-	var Q = der.readString(asn1.Ber.BitString, true);
-	Q = utils.ecNormalize(Q);
-
-	var key = {
-		type: 'ecdsa',
-		parts: [
-			{ name: 'curve', data: Buffer.from(curveName) },
-			{ name: 'Q', data: Q },
-			{ name: 'd', data: d }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs8ECDSAPublic(der) {
-	var curveName = readECDSACurve(der);
-	assert.string(curveName, 'a known elliptic curve');
-
-	var Q = der.readString(asn1.Ber.BitString, true);
-	Q = utils.ecNormalize(Q);
-
-	var key = {
-		type: 'ecdsa',
-		parts: [
-			{ name: 'curve', data: Buffer.from(curveName) },
-			{ name: 'Q', data: Q }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs8EdDSAPublic(der) {
-	if (der.peek() === 0x00)
-		der.readByte();
-
-	var A = utils.readBitString(der);
-
-	var key = {
-		type: 'ed25519',
-		parts: [
-			{ name: 'A', data: utils.zeroPadToLength(A, 32) }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs8X25519Public(der) {
-	var A = utils.readBitString(der);
-
-	var key = {
-		type: 'curve25519',
-		parts: [
-			{ name: 'A', data: utils.zeroPadToLength(A, 32) }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs8EdDSAPrivate(der) {
-	if (der.peek() === 0x00)
-		der.readByte();
-
-	der.readSequence(asn1.Ber.OctetString);
-	var k = der.readString(asn1.Ber.OctetString, true);
-	k = utils.zeroPadToLength(k, 32);
-
-	var A;
-	if (der.peek() === asn1.Ber.BitString) {
-		A = utils.readBitString(der);
-		A = utils.zeroPadToLength(A, 32);
-	} else {
-		A = utils.calculateED25519Public(k);
-	}
-
-	var key = {
-		type: 'ed25519',
-		parts: [
-			{ name: 'A', data: utils.zeroPadToLength(A, 32) },
-			{ name: 'k', data: utils.zeroPadToLength(k, 32) }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs8X25519Private(der) {
-	if (der.peek() === 0x00)
-		der.readByte();
-
-	der.readSequence(asn1.Ber.OctetString);
-	var k = der.readString(asn1.Ber.OctetString, true);
-	k = utils.zeroPadToLength(k, 32);
-
-	var A = utils.calculateX25519Public(k);
-
-	var key = {
-		type: 'curve25519',
-		parts: [
-			{ name: 'A', data: utils.zeroPadToLength(A, 32) },
-			{ name: 'k', data: utils.zeroPadToLength(k, 32) }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function writePkcs8(der, key) {
-	der.startSequence();
-
-	if (PrivateKey.isPrivateKey(key)) {
-		var sillyInt = Buffer.from([0]);
-		der.writeBuffer(sillyInt, asn1.Ber.Integer);
-	}
-
-	der.startSequence();
-	switch (key.type) {
-	case 'rsa':
-		der.writeOID('1.2.840.113549.1.1.1');
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs8RSAPrivate(key, der);
-		else
-			writePkcs8RSAPublic(key, der);
-		break;
-	case 'dsa':
-		der.writeOID('1.2.840.10040.4.1');
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs8DSAPrivate(key, der);
-		else
-			writePkcs8DSAPublic(key, der);
-		break;
-	case 'ecdsa':
-		der.writeOID('1.2.840.10045.2.1');
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs8ECDSAPrivate(key, der);
-		else
-			writePkcs8ECDSAPublic(key, der);
-		break;
-	case 'ed25519':
-		der.writeOID('1.3.101.112');
-		if (PrivateKey.isPrivateKey(key))
-			throw (new Error('Ed25519 private keys in pkcs8 ' +
-			    'format are not supported'));
-		writePkcs8EdDSAPublic(key, der);
-		break;
-	default:
-		throw (new Error('Unsupported key type: ' + key.type));
-	}
-
-	der.endSequence();
-}
-
-function writePkcs8RSAPrivate(key, der) {
-	der.writeNull();
-	der.endSequence();
-
-	der.startSequence(asn1.Ber.OctetString);
-	der.startSequence();
-
-	var version = Buffer.from([0]);
-	der.writeBuffer(version, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.n.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.e.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.d.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	if (!key.part.dmodp || !key.part.dmodq)
-		utils.addRSAMissing(key);
-	der.writeBuffer(key.part.dmodp.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.dmodq.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.iqmp.data, asn1.Ber.Integer);
-
-	der.endSequence();
-	der.endSequence();
-}
-
-function writePkcs8RSAPublic(key, der) {
-	der.writeNull();
-	der.endSequence();
-
-	der.startSequence(asn1.Ber.BitString);
-	der.writeByte(0x00);
-
-	der.startSequence();
-	der.writeBuffer(key.part.n.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.e.data, asn1.Ber.Integer);
-	der.endSequence();
-
-	der.endSequence();
-}
-
-function writePkcs8DSAPrivate(key, der) {
-	der.startSequence();
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.g.data, asn1.Ber.Integer);
-	der.endSequence();
-
-	der.endSequence();
-
-	der.startSequence(asn1.Ber.OctetString);
-	der.writeBuffer(key.part.x.data, asn1.Ber.Integer);
-	der.endSequence();
-}
-
-function writePkcs8DSAPublic(key, der) {
-	der.startSequence();
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.g.data, asn1.Ber.Integer);
-	der.endSequence();
-	der.endSequence();
-
-	der.startSequence(asn1.Ber.BitString);
-	der.writeByte(0x00);
-	der.writeBuffer(key.part.y.data, asn1.Ber.Integer);
-	der.endSequence();
-}
-
-function writeECDSACurve(key, der) {
-	var curve = algs.curves[key.curve];
-	if (curve.pkcs8oid) {
-		/* This one has a name in pkcs#8, so just write the oid */
-		der.writeOID(curve.pkcs8oid);
-
-	} else {
-		// ECParameters sequence
-		der.startSequence();
-
-		var version = Buffer.from([1]);
-		der.writeBuffer(version, asn1.Ber.Integer);
-
-		// FieldID sequence
-		der.startSequence();
-		der.writeOID('1.2.840.10045.1.1'); // prime-field
-		der.writeBuffer(curve.p, asn1.Ber.Integer);
-		der.endSequence();
-
-		// Curve sequence
-		der.startSequence();
-		var a = curve.p;
-		if (a[0] === 0x0)
-			a = a.slice(1);
-		der.writeBuffer(a, asn1.Ber.OctetString);
-		der.writeBuffer(curve.b, asn1.Ber.OctetString);
-		der.writeBuffer(curve.s, asn1.Ber.BitString);
-		der.endSequence();
-
-		der.writeBuffer(curve.G, asn1.Ber.OctetString);
-		der.writeBuffer(curve.n, asn1.Ber.Integer);
-		var h = curve.h;
-		if (!h) {
-			h = Buffer.from([1]);
-		}
-		der.writeBuffer(h, asn1.Ber.Integer);
-
-		// ECParameters
-		der.endSequence();
-	}
-}
-
-function writePkcs8ECDSAPublic(key, der) {
-	writeECDSACurve(key, der);
-	der.endSequence();
-
-	var Q = utils.ecNormalize(key.part.Q.data, true);
-	der.writeBuffer(Q, asn1.Ber.BitString);
-}
-
-function writePkcs8ECDSAPrivate(key, der) {
-	writeECDSACurve(key, der);
-	der.endSequence();
-
-	der.startSequence(asn1.Ber.OctetString);
-	der.startSequence();
-
-	var version = Buffer.from([1]);
-	der.writeBuffer(version, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.d.data, asn1.Ber.OctetString);
-
-	der.startSequence(0xa1);
-	var Q = utils.ecNormalize(key.part.Q.data, true);
-	der.writeBuffer(Q, asn1.Ber.BitString);
-	der.endSequence();
-
-	der.endSequence();
-	der.endSequence();
-}
-
-function writePkcs8EdDSAPublic(key, der) {
-	der.endSequence();
-
-	utils.writeBitString(der, key.part.A.data);
-}
-
-function writePkcs8EdDSAPrivate(key, der) {
-	der.endSequence();
-
-	var k = utils.mpNormalize(key.part.k.data, true);
-	der.startSequence(asn1.Ber.OctetString);
-	der.writeBuffer(k, asn1.Ber.OctetString);
-	der.endSequence();
-}
-
-
-/***/ }),
-/* 158 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = Identity;
-
-var assert = __webpack_require__(16);
-var algs = __webpack_require__(32);
-var crypto = __webpack_require__(11);
-var Fingerprint = __webpack_require__(156);
-var Signature = __webpack_require__(75);
-var errs = __webpack_require__(74);
-var util = __webpack_require__(3);
-var utils = __webpack_require__(26);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
-
-/*JSSTYLED*/
-var DNS_NAME_RE = /^([*]|[a-z0-9][a-z0-9\-]{0,62})(?:\.([*]|[a-z0-9][a-z0-9\-]{0,62}))*$/i;
-
-var oids = {};
-oids.cn = '2.5.4.3';
-oids.o = '2.5.4.10';
-oids.ou = '2.5.4.11';
-oids.l = '2.5.4.7';
-oids.s = '2.5.4.8';
-oids.c = '2.5.4.6';
-oids.sn = '2.5.4.4';
-oids.dc = '0.9.2342.19200300.100.1.25';
-oids.uid = '0.9.2342.19200300.100.1.1';
-oids.mail = '0.9.2342.19200300.100.1.3';
-
-var unoids = {};
-Object.keys(oids).forEach(function (k) {
-	unoids[oids[k]] = k;
-});
-
-function Identity(opts) {
-	var self = this;
-	assert.object(opts, 'options');
-	assert.arrayOfObject(opts.components, 'options.components');
-	this.components = opts.components;
-	this.componentLookup = {};
-	this.components.forEach(function (c) {
-		if (c.name && !c.oid)
-			c.oid = oids[c.name];
-		if (c.oid && !c.name)
-			c.name = unoids[c.oid];
-		if (self.componentLookup[c.name] === undefined)
-			self.componentLookup[c.name] = [];
-		self.componentLookup[c.name].push(c);
-	});
-	if (this.componentLookup.cn && this.componentLookup.cn.length > 0) {
-		this.cn = this.componentLookup.cn[0].value;
-	}
-	assert.optionalString(opts.type, 'options.type');
-	if (opts.type === undefined) {
-		if (this.components.length === 1 &&
-		    this.componentLookup.cn &&
-		    this.componentLookup.cn.length === 1 &&
-		    this.componentLookup.cn[0].value.match(DNS_NAME_RE)) {
-			this.type = 'host';
-			this.hostname = this.componentLookup.cn[0].value;
-
-		} else if (this.componentLookup.dc &&
-		    this.components.length === this.componentLookup.dc.length) {
-			this.type = 'host';
-			this.hostname = this.componentLookup.dc.map(
-			    function (c) {
-				return (c.value);
-			}).join('.');
-
-		} else if (this.componentLookup.uid &&
-		    this.components.length ===
-		    this.componentLookup.uid.length) {
-			this.type = 'user';
-			this.uid = this.componentLookup.uid[0].value;
-
-		} else if (this.componentLookup.cn &&
-		    this.componentLookup.cn.length === 1 &&
-		    this.componentLookup.cn[0].value.match(DNS_NAME_RE)) {
-			this.type = 'host';
-			this.hostname = this.componentLookup.cn[0].value;
-
-		} else if (this.componentLookup.uid &&
-		    this.componentLookup.uid.length === 1) {
-			this.type = 'user';
-			this.uid = this.componentLookup.uid[0].value;
-
-		} else if (this.componentLookup.mail &&
-		    this.componentLookup.mail.length === 1) {
-			this.type = 'email';
-			this.email = this.componentLookup.mail[0].value;
-
-		} else if (this.componentLookup.cn &&
-		    this.componentLookup.cn.length === 1) {
-			this.type = 'user';
-			this.uid = this.componentLookup.cn[0].value;
-
-		} else {
-			this.type = 'unknown';
-		}
-	} else {
-		this.type = opts.type;
-		if (this.type === 'host')
-			this.hostname = opts.hostname;
-		else if (this.type === 'user')
-			this.uid = opts.uid;
-		else if (this.type === 'email')
-			this.email = opts.email;
-		else
-			throw (new Error('Unknown type ' + this.type));
-	}
-}
-
-Identity.prototype.toString = function () {
-	return (this.components.map(function (c) {
-		return (c.name.toUpperCase() + '=' + c.value);
-	}).join(', '));
-};
-
-/*
- * These are from X.680 -- PrintableString allowed chars are in section 37.4
- * table 8. Spec for IA5Strings is "1,6 + SPACE + DEL" where 1 refers to
- * ISO IR #001 (standard ASCII control characters) and 6 refers to ISO IR #006
- * (the basic ASCII character set).
- */
-/* JSSTYLED */
-var NOT_PRINTABLE = /[^a-zA-Z0-9 '(),+.\/:=?-]/;
-/* JSSTYLED */
-var NOT_IA5 = /[^\x00-\x7f]/;
-
-Identity.prototype.toAsn1 = function (der, tag) {
-	der.startSequence(tag);
-	this.components.forEach(function (c) {
-		der.startSequence(asn1.Ber.Constructor | asn1.Ber.Set);
-		der.startSequence();
-		der.writeOID(c.oid);
-		/*
-		 * If we fit in a PrintableString, use that. Otherwise use an
-		 * IA5String or UTF8String.
-		 *
-		 * If this identity was parsed from a DN, use the ASN.1 types
-		 * from the original representation (otherwise this might not
-		 * be a full match for the original in some validators).
-		 */
-		if (c.asn1type === asn1.Ber.Utf8String ||
-		    c.value.match(NOT_IA5)) {
-			var v = Buffer.from(c.value, 'utf8');
-			der.writeBuffer(v, asn1.Ber.Utf8String);
-
-		} else if (c.asn1type === asn1.Ber.IA5String ||
-		    c.value.match(NOT_PRINTABLE)) {
-			der.writeString(c.value, asn1.Ber.IA5String);
-
-		} else {
-			var type = asn1.Ber.PrintableString;
-			if (c.asn1type !== undefined)
-				type = c.asn1type;
-			der.writeString(c.value, type);
-		}
-		der.endSequence();
-		der.endSequence();
-	});
-	der.endSequence();
-};
-
-function globMatch(a, b) {
-	if (a === '**' || b === '**')
-		return (true);
-	var aParts = a.split('.');
-	var bParts = b.split('.');
-	if (aParts.length !== bParts.length)
-		return (false);
-	for (var i = 0; i < aParts.length; ++i) {
-		if (aParts[i] === '*' || bParts[i] === '*')
-			continue;
-		if (aParts[i] !== bParts[i])
-			return (false);
-	}
-	return (true);
-}
-
-Identity.prototype.equals = function (other) {
-	if (!Identity.isIdentity(other, [1, 0]))
-		return (false);
-	if (other.components.length !== this.components.length)
-		return (false);
-	for (var i = 0; i < this.components.length; ++i) {
-		if (this.components[i].oid !== other.components[i].oid)
-			return (false);
-		if (!globMatch(this.components[i].value,
-		    other.components[i].value)) {
-			return (false);
-		}
-	}
-	return (true);
-};
-
-Identity.forHost = function (hostname) {
-	assert.string(hostname, 'hostname');
-	return (new Identity({
-		type: 'host',
-		hostname: hostname,
-		components: [ { name: 'cn', value: hostname } ]
-	}));
-};
-
-Identity.forUser = function (uid) {
-	assert.string(uid, 'uid');
-	return (new Identity({
-		type: 'user',
-		uid: uid,
-		components: [ { name: 'uid', value: uid } ]
-	}));
-};
-
-Identity.forEmail = function (email) {
-	assert.string(email, 'email');
-	return (new Identity({
-		type: 'email',
-		email: email,
-		components: [ { name: 'mail', value: email } ]
-	}));
-};
-
-Identity.parseDN = function (dn) {
-	assert.string(dn, 'dn');
-	var parts = dn.split(',');
-	var cmps = parts.map(function (c) {
-		c = c.trim();
-		var eqPos = c.indexOf('=');
-		var name = c.slice(0, eqPos).toLowerCase();
-		var value = c.slice(eqPos + 1);
-		return ({ name: name, value: value });
-	});
-	return (new Identity({ components: cmps }));
-};
-
-Identity.parseAsn1 = function (der, top) {
-	var components = [];
-	der.readSequence(top);
-	var end = der.offset + der.length;
-	while (der.offset < end) {
-		der.readSequence(asn1.Ber.Constructor | asn1.Ber.Set);
-		var after = der.offset + der.length;
-		der.readSequence();
-		var oid = der.readOID();
-		var type = der.peek();
-		var value;
-		switch (type) {
-		case asn1.Ber.PrintableString:
-		case asn1.Ber.IA5String:
-		case asn1.Ber.OctetString:
-		case asn1.Ber.T61String:
-			value = der.readString(type);
-			break;
-		case asn1.Ber.Utf8String:
-			value = der.readString(type, true);
-			value = value.toString('utf8');
-			break;
-		case asn1.Ber.CharacterString:
-		case asn1.Ber.BMPString:
-			value = der.readString(type, true);
-			value = value.toString('utf16le');
-			break;
-		default:
-			throw (new Error('Unknown asn1 type ' + type));
-		}
-		components.push({ oid: oid, asn1type: type, value: value });
-		der._offset = after;
-	}
-	der._offset = end;
-	return (new Identity({
-		components: components
-	}));
-};
-
-Identity.isIdentity = function (obj, ver) {
-	return (utils.isCompatible(obj, Identity, ver));
-};
-
-/*
- * API versions for Identity:
- * [1,0] -- initial ver
- */
-Identity.prototype._sshpkApiVersion = [1, 0];
-
-Identity._oldVersionDetect = function (obj) {
-	return ([1, 0]);
-};
-
-
-/***/ }),
-/* 159 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = SSHBuffer;
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-
-function SSHBuffer(opts) {
-	assert.object(opts, 'options');
-	if (opts.buffer !== undefined)
-		assert.buffer(opts.buffer, 'options.buffer');
-
-	this._size = opts.buffer ? opts.buffer.length : 1024;
-	this._buffer = opts.buffer || Buffer.alloc(this._size);
-	this._offset = 0;
-}
-
-SSHBuffer.prototype.toBuffer = function () {
-	return (this._buffer.slice(0, this._offset));
-};
-
-SSHBuffer.prototype.atEnd = function () {
-	return (this._offset >= this._buffer.length);
-};
-
-SSHBuffer.prototype.remainder = function () {
-	return (this._buffer.slice(this._offset));
-};
-
-SSHBuffer.prototype.skip = function (n) {
-	this._offset += n;
-};
-
-SSHBuffer.prototype.expand = function () {
-	this._size *= 2;
-	var buf = Buffer.alloc(this._size);
-	this._buffer.copy(buf, 0);
-	this._buffer = buf;
-};
-
-SSHBuffer.prototype.readPart = function () {
-	return ({data: this.readBuffer()});
-};
-
-SSHBuffer.prototype.readBuffer = function () {
-	var len = this._buffer.readUInt32BE(this._offset);
-	this._offset += 4;
-	assert.ok(this._offset + len <= this._buffer.length,
-	    'length out of bounds at +0x' + this._offset.toString(16) +
-	    ' (data truncated?)');
-	var buf = this._buffer.slice(this._offset, this._offset + len);
-	this._offset += len;
-	return (buf);
-};
-
-SSHBuffer.prototype.readString = function () {
-	return (this.readBuffer().toString());
-};
-
-SSHBuffer.prototype.readCString = function () {
-	var offset = this._offset;
-	while (offset < this._buffer.length &&
-	    this._buffer[offset] !== 0x00)
-		offset++;
-	assert.ok(offset < this._buffer.length, 'c string does not terminate');
-	var str = this._buffer.slice(this._offset, offset).toString();
-	this._offset = offset + 1;
-	return (str);
-};
-
-SSHBuffer.prototype.readInt = function () {
-	var v = this._buffer.readUInt32BE(this._offset);
-	this._offset += 4;
-	return (v);
-};
-
-SSHBuffer.prototype.readInt64 = function () {
-	assert.ok(this._offset + 8 < this._buffer.length,
-	    'buffer not long enough to read Int64');
-	var v = this._buffer.slice(this._offset, this._offset + 8);
-	this._offset += 8;
-	return (v);
-};
-
-SSHBuffer.prototype.readChar = function () {
-	var v = this._buffer[this._offset++];
-	return (v);
-};
-
-SSHBuffer.prototype.writeBuffer = function (buf) {
-	while (this._offset + 4 + buf.length > this._size)
-		this.expand();
-	this._buffer.writeUInt32BE(buf.length, this._offset);
-	this._offset += 4;
-	buf.copy(this._buffer, this._offset);
-	this._offset += buf.length;
-};
-
-SSHBuffer.prototype.writeString = function (str) {
-	this.writeBuffer(Buffer.from(str, 'utf8'));
-};
-
-SSHBuffer.prototype.writeCString = function (str) {
-	while (this._offset + 1 + str.length > this._size)
-		this.expand();
-	this._buffer.write(str, this._offset);
-	this._offset += str.length;
-	this._buffer[this._offset++] = 0;
-};
-
-SSHBuffer.prototype.writeInt = function (v) {
-	while (this._offset + 4 > this._size)
-		this.expand();
-	this._buffer.writeUInt32BE(v, this._offset);
-	this._offset += 4;
-};
-
-SSHBuffer.prototype.writeInt64 = function (v) {
-	assert.buffer(v, 'value');
-	if (v.length > 8) {
-		var lead = v.slice(0, v.length - 8);
-		for (var i = 0; i < lead.length; ++i) {
-			assert.strictEqual(lead[i], 0,
-			    'must fit in 64 bits of precision');
-		}
-		v = v.slice(v.length - 8, v.length);
-	}
-	while (this._offset + 8 > this._size)
-		this.expand();
-	v.copy(this._buffer, this._offset);
-	this._offset += 8;
-};
-
-SSHBuffer.prototype.writeChar = function (v) {
-	while (this._offset + 1 > this._size)
-		this.expand();
-	this._buffer[this._offset++] = v;
-};
-
-SSHBuffer.prototype.writePart = function (p) {
-	this.writeBuffer(p.data);
-};
-
-SSHBuffer.prototype.write = function (buf) {
-	while (this._offset + buf.length > this._size)
-		this.expand();
-	buf.copy(this._buffer, this._offset);
-	this._offset += buf.length;
-};
-
-
-/***/ }),
-/* 160 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = x => {
-	if (typeof x !== 'string') {
-		throw new TypeError('Expected a string, got ' + typeof x);
-	}
-
-	// Catches EFBBBF (UTF-8 BOM) because the buffer-to-string
-	// conversion translates it to FEFF (UTF-16 BOM)
-	if (x.charCodeAt(0) === 0xFEFF) {
-		return x.slice(1);
-	}
-
-	return x;
-};
-
-
-/***/ }),
-/* 161 */
-/***/ (function(module, exports) {
-
-// Returns a wrapper function that returns a wrapped callback
-// The wrapper function should do some stuff, and return a
-// presumably different callback function.
-// This makes sure that own properties are retained, so that
-// decorations and such are not lost along the way.
-module.exports = wrappy
-function wrappy (fn, cb) {
-  if (fn && cb) return wrappy(fn)(cb)
-
-  if (typeof fn !== 'function')
-    throw new TypeError('need wrapper function')
-
-  Object.keys(fn).forEach(function (k) {
-    wrapper[k] = fn[k]
-  })
-
-  return wrapper
-
-  function wrapper() {
-    var args = new Array(arguments.length)
-    for (var i = 0; i < args.length; i++) {
-      args[i] = arguments[i]
-    }
-    var ret = fn.apply(this, args)
-    var cb = args[args.length-1]
-    if (typeof ret === 'function' && ret !== cb) {
-      Object.keys(cb).forEach(function (k) {
-        ret[k] = cb[k]
-      })
-    }
-    return ret
-  }
-}
-
-
-/***/ }),
-/* 162 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-exports.extractWorkspaces = extractWorkspaces;
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = __webpack_require__(111);
-}
-
-var _path;
-
-function _load_path() {
-  return _path = __webpack_require__(377);
-}
-
-var _conversion;
-
-function _load_conversion() {
-  return _conversion = __webpack_require__(336);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireDefault(__webpack_require__(220));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _packageConstraintResolver;
-
-function _load_packageConstraintResolver() {
-  return _packageConstraintResolver = _interopRequireDefault(__webpack_require__(555));
-}
-
-var _requestManager;
-
-function _load_requestManager() {
-  return _requestManager = _interopRequireDefault(__webpack_require__(378));
-}
-
-var _index2;
-
-function _load_index2() {
-  return _index2 = __webpack_require__(57);
-}
-
-var _index3;
-
-function _load_index3() {
-  return _index3 = __webpack_require__(200);
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const crypto = __webpack_require__(11);
-const detectIndent = __webpack_require__(635);
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const micromatch = __webpack_require__(114);
-const isCi = __webpack_require__(397);
-
-function sortObject(object) {
-  const sortedObject = {};
-  Object.keys(object).sort().forEach(item => {
-    sortedObject[item] = object[item];
-  });
-  return sortedObject;
-}
-
-class Config {
-  constructor(reporter) {
-    this.constraintResolver = new (_packageConstraintResolver || _load_packageConstraintResolver()).default(this, reporter);
-    this.requestManager = new (_requestManager || _load_requestManager()).default(reporter);
-    this.reporter = reporter;
-    this._init({});
-  }
-
-  //
-
-
-  //
-
-
-  // cache packages in offline mirror folder as new .tgz files
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  // Whether we should ignore executing lifecycle scripts
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  /**
-   * Execute a promise produced by factory if it doesn't exist in our cache with
-   * the associated key.
-   */
-
-  getCache(key, factory) {
-    const cached = this.cache[key];
-    if (cached) {
-      return cached;
-    }
-
-    return this.cache[key] = factory().catch(err => {
-      this.cache[key] = null;
-      throw err;
-    });
-  }
-
-  /**
-   * Get a config option from our yarn config.
-   */
-
-  getOption(key, resolve = false) {
-    const value = this.registries.yarn.getOption(key);
-
-    if (resolve && typeof value === 'string' && value.length) {
-      return (0, (_path || _load_path()).resolveWithHome)(value);
-    }
-
-    return value;
-  }
-
-  /**
-   * Reduce a list of versions to a single one based on an input range.
-   */
-
-  resolveConstraints(versions, range) {
-    return this.constraintResolver.reduce(versions, range);
-  }
-
-  /**
-   * Initialise config. Fetch registry options, find package roots.
-   */
-
-  init(opts = {}) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this._init(opts);
-
-      _this.workspaceRootFolder = yield _this.findWorkspaceRoot(_this.cwd);
-      _this.lockfileFolder = _this.workspaceRootFolder || _this.cwd;
-
-      // using focus in a workspace root is not allowed
-      if (_this.focus && (!_this.workspaceRootFolder || _this.cwd === _this.workspaceRootFolder)) {
-        throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('workspacesFocusRootCheck'));
-      }
-
-      if (_this.focus) {
-        const focusedWorkspaceManifest = yield _this.readRootManifest();
-        _this.focusedWorkspaceName = focusedWorkspaceManifest.name;
-      }
-
-      _this.linkedModules = [];
-
-      let linkedModules;
-      try {
-        linkedModules = yield (_fs || _load_fs()).readdir(_this.linkFolder);
-      } catch (err) {
-        if (err.code === 'ENOENT') {
-          linkedModules = [];
-        } else {
-          throw err;
-        }
-      }
-
-      for (var _iterator = linkedModules, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const dir = _ref;
-
-        const linkedPath = path.join(_this.linkFolder, dir);
-
-        if (dir[0] === '@') {
-          // it's a scope, not a package
-          const scopedLinked = yield (_fs || _load_fs()).readdir(linkedPath);
-          _this.linkedModules.push(...scopedLinked.map(function (scopedDir) {
-            return path.join(dir, scopedDir);
-          }));
-        } else {
-          _this.linkedModules.push(dir);
-        }
-      }
-
-      for (var _iterator2 = Object.keys((_index2 || _load_index2()).registries), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref2 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref2 = _i2.value;
-        }
-
-        const key = _ref2;
-
-        const Registry = (_index2 || _load_index2()).registries[key];
-
-        const extraneousRcFiles = Registry === (_index2 || _load_index2()).registries.yarn ? _this.extraneousYarnrcFiles : [];
-
-        // instantiate registry
-        const registry = new Registry(_this.cwd, _this.registries, _this.requestManager, _this.reporter, _this.enableDefaultRc, extraneousRcFiles);
-        yield registry.init({
-          registry: opts.registry
-        });
-
-        _this.registries[key] = registry;
-        if (_this.registryFolders.indexOf(registry.folder) === -1) {
-          _this.registryFolders.push(registry.folder);
-        }
-      }
-
-      if (_this.modulesFolder) {
-        _this.registryFolders = [_this.modulesFolder];
-      }
-
-      _this.networkConcurrency = opts.networkConcurrency || Number(_this.getOption('network-concurrency')) || (_constants || _load_constants()).NETWORK_CONCURRENCY;
-
-      _this.childConcurrency = opts.childConcurrency || Number(_this.getOption('child-concurrency')) || Number(process.env.CHILD_CONCURRENCY) || (_constants || _load_constants()).CHILD_CONCURRENCY;
-
-      _this.networkTimeout = opts.networkTimeout || Number(_this.getOption('network-timeout')) || (_constants || _load_constants()).NETWORK_TIMEOUT;
-
-      const httpProxy = opts.httpProxy || _this.getOption('proxy');
-      const httpsProxy = opts.httpsProxy || _this.getOption('https-proxy');
-      _this.requestManager.setOptions({
-        userAgent: String(_this.getOption('user-agent')),
-        httpProxy: httpProxy === false ? false : String(httpProxy || ''),
-        httpsProxy: httpsProxy === false ? false : String(httpsProxy || ''),
-        strictSSL: Boolean(_this.getOption('strict-ssl')),
-        ca: Array.prototype.concat(opts.ca || _this.getOption('ca') || []).map(String),
-        cafile: String(opts.cafile || _this.getOption('cafile', true) || ''),
-        cert: String(opts.cert || _this.getOption('cert') || ''),
-        key: String(opts.key || _this.getOption('key') || ''),
-        networkConcurrency: _this.networkConcurrency,
-        networkTimeout: _this.networkTimeout
-      });
-
-      _this.globalFolder = opts.globalFolder || String(_this.getOption('global-folder', true));
-      if (_this.globalFolder === 'undefined') {
-        _this.globalFolder = (_constants || _load_constants()).GLOBAL_MODULE_DIRECTORY;
-      }
-
-      let cacheRootFolder = opts.cacheFolder || _this.getOption('cache-folder', true);
-
-      if (!cacheRootFolder) {
-        let preferredCacheFolders = (_constants || _load_constants()).PREFERRED_MODULE_CACHE_DIRECTORIES;
-        const preferredCacheFolder = opts.preferredCacheFolder || _this.getOption('preferred-cache-folder', true);
-
-        if (preferredCacheFolder) {
-          preferredCacheFolders = [String(preferredCacheFolder)].concat(preferredCacheFolders);
-        }
-
-        const cacheFolderQuery = yield (_fs || _load_fs()).getFirstSuitableFolder(preferredCacheFolders, (_fs || _load_fs()).constants.W_OK | (_fs || _load_fs()).constants.X_OK | (_fs || _load_fs()).constants.R_OK // eslint-disable-line no-bitwise
-        );
-        for (var _iterator3 = cacheFolderQuery.skipped, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref3;
-
-          if (_isArray3) {
-            if (_i3 >= _iterator3.length) break;
-            _ref3 = _iterator3[_i3++];
-          } else {
-            _i3 = _iterator3.next();
-            if (_i3.done) break;
-            _ref3 = _i3.value;
-          }
-
-          const skippedEntry = _ref3;
-
-          _this.reporter.warn(_this.reporter.lang('cacheFolderSkipped', skippedEntry.folder));
-        }
-
-        cacheRootFolder = cacheFolderQuery.folder;
-        if (cacheRootFolder && cacheFolderQuery.skipped.length > 0) {
-          _this.reporter.warn(_this.reporter.lang('cacheFolderSelected', cacheRootFolder));
-        }
-      }
-
-      if (!cacheRootFolder) {
-        throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('cacheFolderMissing'));
-      } else {
-        _this._cacheRootFolder = String(cacheRootFolder);
-      }
-
-      const manifest = yield _this.maybeReadManifest(_this.lockfileFolder);
-
-      const plugnplayByEnv = _this.getOption('plugnplay-override');
-      if (plugnplayByEnv != null) {
-        _this.plugnplayEnabled = plugnplayByEnv !== 'false' && plugnplayByEnv !== '0';
-        _this.plugnplayPersist = false;
-      } else if (opts.enablePnp || opts.disablePnp) {
-        _this.plugnplayEnabled = !!opts.enablePnp;
-        _this.plugnplayPersist = true;
-      } else if (manifest && manifest.installConfig && manifest.installConfig.pnp) {
-        _this.plugnplayEnabled = !!manifest.installConfig.pnp;
-        _this.plugnplayPersist = false;
-      } else {
-        _this.plugnplayEnabled = false;
-        _this.plugnplayPersist = false;
-      }
-
-      if (process.platform === 'win32') {
-        const cacheRootFolderDrive = path.parse(_this._cacheRootFolder).root.toLowerCase();
-        const lockfileFolderDrive = path.parse(_this.lockfileFolder).root.toLowerCase();
-
-        if (cacheRootFolderDrive !== lockfileFolderDrive) {
-          if (_this.plugnplayEnabled) {
-            _this.reporter.warn(_this.reporter.lang('plugnplayWindowsSupport'));
-          }
-          _this.plugnplayEnabled = false;
-          _this.plugnplayPersist = false;
-        }
-      }
-
-      _this.plugnplayShebang = String(_this.getOption('plugnplay-shebang') || '') || '/usr/bin/env node';
-      _this.plugnplayBlacklist = String(_this.getOption('plugnplay-blacklist') || '') || null;
-
-      _this.ignoreScripts = opts.ignoreScripts || Boolean(_this.getOption('ignore-scripts', false));
-
-      _this.workspacesEnabled = _this.getOption('workspaces-experimental') !== false;
-      _this.workspacesNohoistEnabled = _this.getOption('workspaces-nohoist-experimental') !== false;
-
-      _this.offlineCacheFolder = String(_this.getOption('offline-cache-folder') || '') || null;
-
-      _this.pruneOfflineMirror = Boolean(_this.getOption('yarn-offline-mirror-pruning'));
-      _this.enableMetaFolder = Boolean(_this.getOption('enable-meta-folder'));
-      _this.enableLockfileVersions = Boolean(_this.getOption('yarn-enable-lockfile-versions'));
-      _this.linkFileDependencies = Boolean(_this.getOption('yarn-link-file-dependencies'));
-      _this.packBuiltPackages = Boolean(_this.getOption('experimental-pack-script-packages-in-mirror'));
-
-      _this.autoAddIntegrity = !(0, (_conversion || _load_conversion()).boolifyWithDefault)(String(_this.getOption('unsafe-disable-integrity-migration')), true);
-
-      //init & create cacheFolder, tempFolder
-      _this.cacheFolder = path.join(_this._cacheRootFolder, 'v' + String((_constants || _load_constants()).CACHE_VERSION));
-      _this.tempFolder = opts.tempFolder || path.join(_this.cacheFolder, '.tmp');
-      yield (_fs || _load_fs()).mkdirp(_this.cacheFolder);
-      yield (_fs || _load_fs()).mkdirp(_this.tempFolder);
-
-      if (opts.production !== undefined) {
-        _this.production = Boolean(opts.production);
-      } else {
-        _this.production = Boolean(_this.getOption('production')) || process.env.NODE_ENV === 'production' && process.env.NPM_CONFIG_PRODUCTION !== 'false' && process.env.YARN_PRODUCTION !== 'false';
-      }
-
-      if (_this.workspaceRootFolder && !_this.workspacesEnabled) {
-        throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('workspacesDisabled'));
-      }
-    })();
-  }
-
-  _init(opts) {
-    this.registryFolders = [];
-    this.linkedModules = [];
-
-    this.registries = (0, (_map || _load_map()).default)();
-    this.cache = (0, (_map || _load_map()).default)();
-
-    // Ensure the cwd is always an absolute path.
-    this.cwd = path.resolve(opts.cwd || this.cwd || process.cwd());
-
-    this.looseSemver = opts.looseSemver == undefined ? true : opts.looseSemver;
-
-    this.commandName = opts.commandName || '';
-
-    this.enableDefaultRc = opts.enableDefaultRc !== false;
-    this.extraneousYarnrcFiles = opts.extraneousYarnrcFiles || [];
-
-    this.preferOffline = !!opts.preferOffline;
-    this.modulesFolder = opts.modulesFolder;
-    this.linkFolder = opts.linkFolder || (_constants || _load_constants()).LINK_REGISTRY_DIRECTORY;
-    this.offline = !!opts.offline;
-    this.binLinks = !!opts.binLinks;
-    this.updateChecksums = !!opts.updateChecksums;
-    this.plugnplayUnplugged = [];
-    this.plugnplayPurgeUnpluggedPackages = false;
-
-    this.ignorePlatform = !!opts.ignorePlatform;
-    this.ignoreScripts = !!opts.ignoreScripts;
-
-    this.disablePrepublish = !!opts.disablePrepublish;
-
-    // $FlowFixMe$
-    this.nonInteractive = !!opts.nonInteractive || isCi || !process.stdout.isTTY;
-
-    this.requestManager.setOptions({
-      offline: !!opts.offline && !opts.preferOffline,
-      captureHar: !!opts.captureHar
-    });
-
-    this.focus = !!opts.focus;
-    this.focusedWorkspaceName = '';
-
-    this.otp = opts.otp || '';
-  }
-
-  /**
-   * Generate a name suitable as unique filesystem identifier for the specified package.
-   */
-
-  generateUniquePackageSlug(pkg) {
-    let slug = pkg.name;
-
-    slug = slug.replace(/[^@a-z0-9]+/g, '-');
-    slug = slug.replace(/^-+|-+$/g, '');
-
-    if (pkg.registry) {
-      slug = `${pkg.registry}-${slug}`;
-    } else {
-      slug = `unknown-${slug}`;
-    }
-
-    const hash = pkg.remote.hash;
-
-
-    if (pkg.version) {
-      slug += `-${pkg.version}`;
-    }
-
-    if (pkg.uid && pkg.version !== pkg.uid) {
-      slug += `-${pkg.uid}`;
-    } else if (hash) {
-      slug += `-${hash}`;
-    }
-
-    if (pkg.remote.integrity) {
-      slug += `-integrity`;
-    }
-
-    return slug;
-  }
-
-  /**
-   * Generate an absolute module path.
-   */
-
-  generateModuleCachePath(pkg) {
-    invariant(this.cacheFolder, 'No package root');
-    invariant(pkg, 'Undefined package');
-
-    const slug = this.generateUniquePackageSlug(pkg);
-    return path.join(this.cacheFolder, slug, 'node_modules', pkg.name);
-  }
-
-  /**
-   */
-
-  getUnpluggedPath() {
-    return path.join(this.lockfileFolder, '.pnp', 'unplugged');
-  }
-
-  /**
-    */
-
-  generatePackageUnpluggedPath(pkg) {
-    const slug = this.generateUniquePackageSlug(pkg);
-    return path.join(this.getUnpluggedPath(), slug, 'node_modules', pkg.name);
-  }
-
-  /**
-   */
-
-  listUnpluggedPackageFolders() {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const unpluggedPackages = new Map();
-      const unpluggedPath = _this2.getUnpluggedPath();
-
-      if (!(yield (_fs || _load_fs()).exists(unpluggedPath))) {
-        return unpluggedPackages;
-      }
-
-      for (var _iterator4 = yield (_fs || _load_fs()).readdir(unpluggedPath), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref4 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref4 = _i4.value;
-        }
-
-        const unpluggedName = _ref4;
-
-        const nmListing = yield (_fs || _load_fs()).readdir(path.join(unpluggedPath, unpluggedName, 'node_modules'));
-        invariant(nmListing.length === 1, 'A single folder should be in the unplugged directory');
-
-        const target = path.join(unpluggedPath, unpluggedName, `node_modules`, nmListing[0]);
-        unpluggedPackages.set(unpluggedName, target);
-      }
-
-      return unpluggedPackages;
-    })();
-  }
-
-  /**
-   * Execute lifecycle scripts in the specified directory. Ignoring when the --ignore-scripts flag has been
-   * passed.
-   */
-
-  executeLifecycleScript(commandName, cwd) {
-    if (this.ignoreScripts) {
-      return Promise.resolve();
-    } else {
-      return (0, (_executeLifecycleScript || _load_executeLifecycleScript()).execFromManifest)(this, commandName, cwd || this.cwd);
-    }
-  }
-
-  /**
-   * Generate an absolute temporary filename location based on the input filename.
-   */
-
-  getTemp(filename) {
-    invariant(this.tempFolder, 'No temp folder');
-    return path.join(this.tempFolder, filename);
-  }
-
-  /**
-   * Remote packages may be cached in a file system to be available for offline installation.
-   * Second time the same package needs to be installed it will be loaded from there.
-   * Given a package's filename, return a path in the offline mirror location.
-   */
-
-  getOfflineMirrorPath(packageFilename) {
-    let mirrorPath;
-
-    var _arr = ['npm', 'yarn'];
-    for (var _i5 = 0; _i5 < _arr.length; _i5++) {
-      const key = _arr[_i5];
-      const registry = this.registries[key];
-
-      if (registry == null) {
-        continue;
-      }
-
-      const registryMirrorPath = registry.config['yarn-offline-mirror'];
-
-      if (registryMirrorPath === false) {
-        return null;
-      }
-
-      if (registryMirrorPath == null) {
-        continue;
-      }
-
-      mirrorPath = registryMirrorPath;
-    }
-
-    if (mirrorPath == null) {
-      return null;
-    }
-
-    if (packageFilename == null) {
-      return mirrorPath;
-    }
-
-    return path.join(mirrorPath, path.basename(packageFilename));
-  }
-
-  /**
-   * Checker whether the folder input is a valid module folder. We output a yarn metadata
-   * file when we've successfully setup a folder so use this as a marker.
-   */
-
-  isValidModuleDest(dest) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (!(yield (_fs || _load_fs()).exists(dest))) {
-        return false;
-      }
-
-      if (!(yield (_fs || _load_fs()).exists(path.join(dest, (_constants || _load_constants()).METADATA_FILENAME)))) {
-        return false;
-      }
-
-      return true;
-    })();
-  }
-
-  /**
-   * Read package metadata and normalized package info.
-   */
-
-  readPackageMetadata(dir) {
-    var _this3 = this;
-
-    return this.getCache(`metadata-${dir}`, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const metadata = yield _this3.readJson(path.join(dir, (_constants || _load_constants()).METADATA_FILENAME));
-      const pkg = yield _this3.readManifest(dir, metadata.registry);
-
-      return {
-        package: pkg,
-        artifacts: metadata.artifacts || [],
-        hash: metadata.hash,
-        remote: metadata.remote,
-        registry: metadata.registry
-      };
-    }));
-  }
-
-  /**
-   * Read normalized package info according yarn-metadata.json
-   * throw an error if package.json was not found
-   */
-
-  readManifest(dir, priorityRegistry, isRoot = false) {
-    var _this4 = this;
-
-    return this.getCache(`manifest-${dir}`, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const manifest = yield _this4.maybeReadManifest(dir, priorityRegistry, isRoot);
-
-      if (manifest) {
-        return manifest;
-      } else {
-        throw new (_errors || _load_errors()).MessageError(_this4.reporter.lang('couldntFindPackagejson', dir), 'ENOENT');
-      }
-    }));
-  }
-
-  /**
-   * try get the manifest file by looking
-   * 1. manifest file in cache
-   * 2. manifest file in registry
-   */
-  maybeReadManifest(dir, priorityRegistry, isRoot = false) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const metadataLoc = path.join(dir, (_constants || _load_constants()).METADATA_FILENAME);
-
-      if (yield (_fs || _load_fs()).exists(metadataLoc)) {
-        const metadata = yield _this5.readJson(metadataLoc);
-
-        if (!priorityRegistry) {
-          priorityRegistry = metadata.priorityRegistry;
-        }
-
-        if (typeof metadata.manifest !== 'undefined') {
-          return metadata.manifest;
-        }
-      }
-
-      if (priorityRegistry) {
-        const file = yield _this5.tryManifest(dir, priorityRegistry, isRoot);
-        if (file) {
-          return file;
-        }
-      }
-
-      for (var _iterator5 = Object.keys((_index2 || _load_index2()).registries), _isArray5 = Array.isArray(_iterator5), _i6 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray5) {
-          if (_i6 >= _iterator5.length) break;
-          _ref7 = _iterator5[_i6++];
-        } else {
-          _i6 = _iterator5.next();
-          if (_i6.done) break;
-          _ref7 = _i6.value;
-        }
-
-        const registry = _ref7;
-
-        if (priorityRegistry === registry) {
-          continue;
-        }
-
-        const file = yield _this5.tryManifest(dir, registry, isRoot);
-        if (file) {
-          return file;
-        }
-      }
-
-      return null;
-    })();
-  }
-
-  /**
-   * Read the root manifest.
-   */
-
-  readRootManifest() {
-    return this.readManifest(this.cwd, 'npm', true);
-  }
-
-  /**
-   * Try and find package info with the input directory and registry.
-   */
-
-  tryManifest(dir, registry, isRoot) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const filename = (_index2 || _load_index2()).registries[registry].filename;
-
-      const loc = path.join(dir, filename);
-      if (yield (_fs || _load_fs()).exists(loc)) {
-        const data = yield _this6.readJson(loc);
-        data._registry = registry;
-        data._loc = loc;
-        return (0, (_index || _load_index()).default)(data, dir, _this6, isRoot);
-      } else {
-        return null;
-      }
-    })();
-  }
-
-  findManifest(dir, isRoot) {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      for (var _iterator6 = (_index2 || _load_index2()).registryNames, _isArray6 = Array.isArray(_iterator6), _i7 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref8;
-
-        if (_isArray6) {
-          if (_i7 >= _iterator6.length) break;
-          _ref8 = _iterator6[_i7++];
-        } else {
-          _i7 = _iterator6.next();
-          if (_i7.done) break;
-          _ref8 = _i7.value;
-        }
-
-        const registry = _ref8;
-
-        const manifest = yield _this7.tryManifest(dir, registry, isRoot);
-
-        if (manifest) {
-          return manifest;
-        }
-      }
-
-      return null;
-    })();
-  }
-
-  findWorkspaceRoot(initial) {
-    var _this8 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let previous = null;
-      let current = path.normalize(initial);
-      if (!(yield (_fs || _load_fs()).exists(current))) {
-        throw new (_errors || _load_errors()).MessageError(_this8.reporter.lang('folderMissing', current));
-      }
-
-      do {
-        const manifest = yield _this8.findManifest(current, true);
-        const ws = extractWorkspaces(manifest);
-        if (ws && ws.packages) {
-          const relativePath = path.relative(current, initial);
-          if (relativePath === '' || micromatch([relativePath], ws.packages).length > 0) {
-            return current;
-          } else {
-            return null;
-          }
-        }
-
-        previous = current;
-        current = path.dirname(current);
-      } while (current !== previous);
-
-      return null;
-    })();
-  }
-
-  resolveWorkspaces(root, rootManifest) {
-    var _this9 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const workspaces = {};
-      if (!_this9.workspacesEnabled) {
-        return workspaces;
-      }
-
-      const ws = _this9.getWorkspaces(rootManifest, true);
-      const patterns = ws && ws.packages ? ws.packages : [];
-
-      if (!Array.isArray(patterns)) {
-        throw new (_errors || _load_errors()).MessageError(_this9.reporter.lang('workspacesSettingMustBeArray'));
-      }
-
-      const registryFilenames = (_index2 || _load_index2()).registryNames.map(function (registryName) {
-        return _this9.registries[registryName].constructor.filename;
-      }).join('|');
-      const trailingPattern = `/+(${registryFilenames})`;
-      // anything under folder (node_modules) should be ignored, thus use the '**' instead of shallow match "*"
-      const ignorePatterns = _this9.registryFolders.map(function (folder) {
-        return `/${folder}/**/+(${registryFilenames})`;
-      });
-
-      const files = yield Promise.all(patterns.map(function (pattern) {
-        return (_fs || _load_fs()).glob(pattern.replace(/\/?$/, trailingPattern), {
-          cwd: root,
-          ignore: ignorePatterns.map(function (ignorePattern) {
-            return pattern.replace(/\/?$/, ignorePattern);
-          })
-        });
-      }));
-
-      for (var _iterator7 = new Set([].concat(...files)), _isArray7 = Array.isArray(_iterator7), _i8 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref9;
-
-        if (_isArray7) {
-          if (_i8 >= _iterator7.length) break;
-          _ref9 = _iterator7[_i8++];
-        } else {
-          _i8 = _iterator7.next();
-          if (_i8.done) break;
-          _ref9 = _i8.value;
-        }
-
-        const file = _ref9;
-
-        const loc = path.join(root, path.dirname(file));
-        const manifest = yield _this9.findManifest(loc, false);
-
-        if (!manifest) {
-          continue;
-        }
-
-        if (!manifest.name) {
-          _this9.reporter.warn(_this9.reporter.lang('workspaceNameMandatory', loc));
-          continue;
-        }
-        if (!manifest.version) {
-          _this9.reporter.warn(_this9.reporter.lang('workspaceVersionMandatory', loc));
-          continue;
-        }
-
-        if (Object.prototype.hasOwnProperty.call(workspaces, manifest.name)) {
-          throw new (_errors || _load_errors()).MessageError(_this9.reporter.lang('workspaceNameDuplicate', manifest.name));
-        }
-
-        workspaces[manifest.name] = { loc, manifest };
-      }
-
-      return workspaces;
-    })();
-  }
-
-  // workspaces functions
-  getWorkspaces(manifest, shouldThrow = false) {
-    if (!manifest || !this.workspacesEnabled) {
-      return undefined;
-    }
-
-    const ws = extractWorkspaces(manifest);
-
-    if (!ws) {
-      return ws;
-    }
-
-    // validate eligibility
-    let wsCopy = (0, (_extends2 || _load_extends()).default)({}, ws);
-    const warnings = [];
-    const errors = [];
-
-    // packages
-    if (wsCopy.packages && wsCopy.packages.length > 0 && !manifest.private) {
-      errors.push(this.reporter.lang('workspacesRequirePrivateProjects'));
-      wsCopy = undefined;
-    }
-    // nohoist
-    if (wsCopy && wsCopy.nohoist && wsCopy.nohoist.length > 0) {
-      if (!this.workspacesNohoistEnabled) {
-        warnings.push(this.reporter.lang('workspacesNohoistDisabled', manifest.name));
-        wsCopy.nohoist = undefined;
-      } else if (!manifest.private) {
-        errors.push(this.reporter.lang('workspacesNohoistRequirePrivatePackages', manifest.name));
-        wsCopy.nohoist = undefined;
-      }
-    }
-
-    if (errors.length > 0 && shouldThrow) {
-      throw new (_errors || _load_errors()).MessageError(errors.join('\n'));
-    }
-
-    const msg = errors.concat(warnings).join('\n');
-    if (msg.length > 0) {
-      this.reporter.warn(msg);
-    }
-
-    return wsCopy;
-  }
-
-  /**
-   * Description
-   */
-
-  getFolder(pkg) {
-    let registryName = pkg._registry;
-    if (!registryName) {
-      const ref = pkg._reference;
-      invariant(ref, 'expected reference');
-      registryName = ref.registry;
-    }
-    return this.registries[registryName].folder;
-  }
-
-  /**
-   * Get root manifests.
-   */
-
-  getRootManifests() {
-    var _this10 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const manifests = {};
-      for (var _iterator8 = (_index2 || _load_index2()).registryNames, _isArray8 = Array.isArray(_iterator8), _i9 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-        var _ref10;
-
-        if (_isArray8) {
-          if (_i9 >= _iterator8.length) break;
-          _ref10 = _iterator8[_i9++];
-        } else {
-          _i9 = _iterator8.next();
-          if (_i9.done) break;
-          _ref10 = _i9.value;
-        }
-
-        const registryName = _ref10;
-
-        const registry = (_index2 || _load_index2()).registries[registryName];
-        const jsonLoc = path.join(_this10.cwd, registry.filename);
-
-        let object = {};
-        let exists = false;
-        let indent;
-        if (yield (_fs || _load_fs()).exists(jsonLoc)) {
-          exists = true;
-
-          const info = yield _this10.readJson(jsonLoc, (_fs || _load_fs()).readJsonAndFile);
-          object = info.object;
-          indent = detectIndent(info.content).indent || undefined;
-        }
-        manifests[registryName] = { loc: jsonLoc, object, exists, indent };
-      }
-      return manifests;
-    })();
-  }
-
-  /**
-   * Save root manifests.
-   */
-
-  saveRootManifests(manifests) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      for (var _iterator9 = (_index2 || _load_index2()).registryNames, _isArray9 = Array.isArray(_iterator9), _i10 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-        var _ref11;
-
-        if (_isArray9) {
-          if (_i10 >= _iterator9.length) break;
-          _ref11 = _iterator9[_i10++];
-        } else {
-          _i10 = _iterator9.next();
-          if (_i10.done) break;
-          _ref11 = _i10.value;
-        }
-
-        const registryName = _ref11;
-        var _manifests$registryNa = manifests[registryName];
-        const loc = _manifests$registryNa.loc,
-              object = _manifests$registryNa.object,
-              exists = _manifests$registryNa.exists,
-              indent = _manifests$registryNa.indent;
-
-        if (!exists && !Object.keys(object).length) {
-          continue;
-        }
-
-        for (var _iterator10 = (_constants || _load_constants()).DEPENDENCY_TYPES, _isArray10 = Array.isArray(_iterator10), _i11 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-          var _ref12;
-
-          if (_isArray10) {
-            if (_i11 >= _iterator10.length) break;
-            _ref12 = _iterator10[_i11++];
-          } else {
-            _i11 = _iterator10.next();
-            if (_i11.done) break;
-            _ref12 = _i11.value;
-          }
-
-          const field = _ref12;
-
-          if (object[field]) {
-            object[field] = sortObject(object[field]);
-          }
-        }
-
-        yield (_fs || _load_fs()).writeFilePreservingEol(loc, JSON.stringify(object, null, indent || (_constants || _load_constants()).DEFAULT_INDENT) + '\n');
-      }
-    })();
-  }
-
-  /**
-   * Call the passed factory (defaults to fs.readJson) and rethrow a pretty error message if it was the result
-   * of a syntax error.
-   */
-
-  readJson(loc, factory = (_fs || _load_fs()).readJson) {
-    try {
-      return factory(loc);
-    } catch (err) {
-      if (err instanceof SyntaxError) {
-        throw new (_errors || _load_errors()).MessageError(this.reporter.lang('jsonError', loc, err.message));
-      } else {
-        throw err;
-      }
-    }
-  }
-
-  static create(opts = {}, reporter = new (_index3 || _load_index3()).NoopReporter()) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const config = new Config(reporter);
-      yield config.init(opts);
-      return config;
-    })();
-  }
-}
-
-exports.default = Config;
-function extractWorkspaces(manifest) {
-  if (!manifest || !manifest.workspaces) {
-    return undefined;
-  }
-
-  if (Array.isArray(manifest.workspaces)) {
-    return { packages: manifest.workspaces };
-  }
-
-  if (manifest.workspaces.packages && Array.isArray(manifest.workspaces.packages) || manifest.workspaces.nohoist && Array.isArray(manifest.workspaces.nohoist)) {
-    return manifest.workspaces;
-  }
-
-  return undefined;
-}
-
-/***/ }),
-/* 163 */
-/***/ (function(module, exports) {
-
-module.exports = function(module) {
-	if(!module.webpackPolyfill) {
-		module.deprecate = function() {};
-		module.paths = [];
-		// module.parent = undefined by default
-		if(!module.children) module.children = [];
-		Object.defineProperty(module, "loaded", {
-			enumerable: true,
-			get: function() {
-				return module.l;
-			}
-		});
-		Object.defineProperty(module, "id", {
-			enumerable: true,
-			get: function() {
-				return module.i;
-			}
-		});
-		module.webpackPolyfill = 1;
-	}
-	return module;
-};
-
-
-/***/ }),
-/* 164 */
-/***/ (function(module, exports) {
-
-module.exports = require("net");
-
-/***/ }),
-/* 165 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.Add = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-let run = exports.run = (() => {
-  var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (!args.length) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('missingAddDependencies'));
-    }
-
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-
-    yield (0, (_install || _load_install()).wrapLifecycle)(config, flags, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const install = new Add(args, flags, config, reporter, lockfile);
-      yield install.init();
-    }));
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref7.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _list;
-
-function _load_list() {
-  return _list = __webpack_require__(358);
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const SILENCE_DEPENDENCY_TYPE_WARNINGS = ['upgrade', 'upgrade-interactive'];
-
-class Add extends (_install || _load_install()).Install {
-  constructor(args, flags, config, reporter, lockfile) {
-    const workspaceRootIsCwd = config.cwd === config.lockfileFolder;
-    const _flags = flags ? (0, (_extends2 || _load_extends()).default)({}, flags, { workspaceRootIsCwd }) : { workspaceRootIsCwd };
-    super(_flags, config, reporter, lockfile);
-    this.args = args;
-    // only one flag is supported, so we can figure out which one was passed to `yarn add`
-    this.flagToOrigin = [flags.dev && 'devDependencies', flags.optional && 'optionalDependencies', flags.peer && 'peerDependencies', 'dependencies'].filter(Boolean).shift();
-  }
-
-  /**
-   * TODO
-   */
-
-  prepareRequests(requests) {
-    const requestsWithArgs = requests.slice();
-
-    for (var _iterator = this.args, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const pattern = _ref;
-
-      requestsWithArgs.push({
-        pattern,
-        registry: 'npm',
-        optional: false
-      });
-    }
-    return requestsWithArgs;
-  }
-
-  /**
-   * returns version for a pattern based on Manifest
-   */
-  getPatternVersion(pattern, pkg) {
-    const tilde = this.flags.tilde;
-    const configPrefix = String(this.config.getOption('save-prefix'));
-    const exact = this.flags.exact || Boolean(this.config.getOption('save-exact')) || configPrefix === '';
-
-    var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(pattern);
-
-    const hasVersion = _normalizePattern.hasVersion,
-          range = _normalizePattern.range;
-
-    let version;
-
-    if ((0, (_index || _load_index()).getExoticResolver)(pattern)) {
-      // wasn't a name/range tuple so this is just a raw exotic pattern
-      version = pattern;
-    } else if (hasVersion && range && ((_semver || _load_semver()).default.satisfies(pkg.version, range) || (0, (_index || _load_index()).getExoticResolver)(range))) {
-      // if the user specified a range then use it verbatim
-      version = range;
-    }
-
-    if (!version || (_semver || _load_semver()).default.valid(version)) {
-      let prefix = configPrefix || '^';
-
-      if (tilde) {
-        prefix = '~';
-      } else if (version || exact) {
-        prefix = '';
-      }
-      version = `${prefix}${pkg.version}`;
-    }
-
-    return version;
-  }
-
-  preparePatterns(patterns) {
-    const preparedPatterns = patterns.slice();
-    for (var _iterator2 = this.resolver.dedupePatterns(this.args), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref2 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref2 = _i2.value;
-      }
-
-      const pattern = _ref2;
-
-      const pkg = this.resolver.getResolvedPattern(pattern);
-      (0, (_invariant || _load_invariant()).default)(pkg, `missing package ${pattern}`);
-      const version = this.getPatternVersion(pattern, pkg);
-      const newPattern = `${pkg.name}@${version}`;
-      preparedPatterns.push(newPattern);
-      this.addedPatterns.push(newPattern);
-      if (newPattern === pattern) {
-        continue;
-      }
-      this.resolver.replacePattern(pattern, newPattern);
-    }
-    return preparedPatterns;
-  }
-
-  preparePatternsForLinking(patterns, cwdManifest, cwdIsRoot) {
-    // remove the newly added patterns if cwd != root and update the in-memory package dependency instead
-    if (cwdIsRoot) {
-      return patterns;
-    }
-
-    let manifest;
-    const cwdPackage = `${cwdManifest.name}@${cwdManifest.version}`;
-    try {
-      manifest = this.resolver.getStrictResolvedPattern(cwdPackage);
-    } catch (e) {
-      this.reporter.warn(this.reporter.lang('unknownPackage', cwdPackage));
-      return patterns;
-    }
-
-    let newPatterns = patterns;
-    this._iterateAddedPackages((pattern, registry, dependencyType, pkgName, version) => {
-      // remove added package from patterns list
-      const filtered = newPatterns.filter(p => p !== pattern);
-      (0, (_invariant || _load_invariant()).default)(newPatterns.length - filtered.length > 0, `expect added pattern '${pattern}' in the list: ${patterns.toString()}`);
-      newPatterns = filtered;
-
-      // add new package into in-memory manifest so they can be linked properly
-      manifest[dependencyType] = manifest[dependencyType] || {};
-      if (manifest[dependencyType][pkgName] === version) {
-        // package already existed
-        return;
-      }
-
-      // update dependencies in the manifest
-      (0, (_invariant || _load_invariant()).default)(manifest._reference, 'manifest._reference should not be null');
-      const ref = manifest._reference;
-
-      ref['dependencies'] = ref['dependencies'] || [];
-      ref['dependencies'].push(pattern);
-    });
-
-    return newPatterns;
-  }
-
-  bailout(patterns, workspaceLayout) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const lockfileCache = _this.lockfile.cache;
-      if (!lockfileCache) {
-        return false;
-      }
-      const match = yield _this.integrityChecker.check(patterns, lockfileCache, _this.flags, workspaceLayout);
-      const haveLockfile = yield (_fs || _load_fs()).exists((_path || _load_path()).default.join(_this.config.lockfileFolder, (_constants || _load_constants()).LOCKFILE_FILENAME));
-      if (match.integrityFileMissing && haveLockfile) {
-        // Integrity file missing, force script installations
-        _this.scripts.setForce(true);
-      }
-      return false;
-    })();
-  }
-
-  /**
-   * Description
-   */
-
-  init() {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const isWorkspaceRoot = _this2.config.workspaceRootFolder && _this2.config.cwd === _this2.config.workspaceRootFolder;
-
-      // running "yarn add something" in a workspace root is often a mistake
-      if (isWorkspaceRoot && !_this2.flags.ignoreWorkspaceRootCheck) {
-        throw new (_errors || _load_errors()).MessageError(_this2.reporter.lang('workspacesAddRootCheck'));
-      }
-
-      _this2.addedPatterns = [];
-      const patterns = yield (_install || _load_install()).Install.prototype.init.call(_this2);
-      yield _this2.maybeOutputSaveTree(patterns);
-      return patterns;
-    })();
-  }
-
-  applyChanges(manifests) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield (_install || _load_install()).Install.prototype.applyChanges.call(_this3, manifests);
-
-      // fill rootPatternsToOrigin without `excludePatterns`
-      yield (_install || _load_install()).Install.prototype.fetchRequestFromCwd.call(_this3);
-
-      _this3._iterateAddedPackages(function (pattern, registry, dependencyType, pkgName, version) {
-        // add it to manifest
-        const object = manifests[registry].object;
-
-
-        object[dependencyType] = object[dependencyType] || {};
-        object[dependencyType][pkgName] = version;
-        if (SILENCE_DEPENDENCY_TYPE_WARNINGS.indexOf(_this3.config.commandName) === -1 && dependencyType !== _this3.flagToOrigin) {
-          _this3.reporter.warn(_this3.reporter.lang('moduleAlreadyInManifest', pkgName, dependencyType, _this3.flagToOrigin));
-        }
-      });
-
-      return true;
-    })();
-  }
-
-  /**
-   * Description
-   */
-
-  fetchRequestFromCwd() {
-    return (_install || _load_install()).Install.prototype.fetchRequestFromCwd.call(this, this.args);
-  }
-
-  /**
-   * Output a tree of any newly added dependencies.
-   */
-
-  maybeOutputSaveTree(patterns) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // don't limit the shown tree depth
-      const opts = {
-        reqDepth: 0
-      };
-
-      // restore the original patterns
-      const merged = [...patterns, ..._this4.addedPatterns];
-
-      var _ref3 = yield (0, (_list || _load_list()).buildTree)(_this4.resolver, _this4.linker, merged, opts, true, true);
-
-      const trees = _ref3.trees,
-            count = _ref3.count;
-
-
-      if (count === 1) {
-        _this4.reporter.success(_this4.reporter.lang('savedNewDependency'));
-      } else {
-        _this4.reporter.success(_this4.reporter.lang('savedNewDependencies', count));
-      }
-
-      if (!count) {
-        return;
-      }
-
-      const resolverPatterns = new Set();
-      for (var _iterator3 = patterns, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref4 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref4 = _i3.value;
-        }
-
-        const pattern = _ref4;
-
-        var _ref5 = _this4.resolver.getResolvedPattern(pattern) || {};
-
-        const version = _ref5.version,
-              name = _ref5.name;
-
-        resolverPatterns.add(`${name}@${version}`);
-      }
-      const directRequireDependencies = trees.filter(function ({ name }) {
-        return resolverPatterns.has(name);
-      });
-
-      _this4.reporter.info(_this4.reporter.lang('directDependencies'));
-      _this4.reporter.tree('newDirectDependencies', directRequireDependencies);
-      _this4.reporter.info(_this4.reporter.lang('allDependencies'));
-      _this4.reporter.tree('newAllDependencies', trees);
-    })();
-  }
-
-  /**
-   * Save added packages to manifest if any of the --save flags were used.
-   */
-
-  savePackages() {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {})();
-  }
-
-  _iterateAddedPackages(f) {
-    const patternOrigins = Object.keys(this.rootPatternsToOrigin);
-
-    // add new patterns to their appropriate registry manifest
-    for (var _iterator4 = this.addedPatterns, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref6;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref6 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref6 = _i4.value;
-      }
-
-      const pattern = _ref6;
-
-      const pkg = this.resolver.getResolvedPattern(pattern);
-      (0, (_invariant || _load_invariant()).default)(pkg, `missing package ${pattern}`);
-      const version = this.getPatternVersion(pattern, pkg);
-      const ref = pkg._reference;
-      (0, (_invariant || _load_invariant()).default)(ref, 'expected package reference');
-      // lookup the package to determine dependency type; used during `yarn upgrade`
-      const depType = patternOrigins.reduce((acc, prev) => {
-        if (prev.indexOf(`${pkg.name}@`) === 0) {
-          return this.rootPatternsToOrigin[prev];
-        }
-        return acc;
-      }, null);
-
-      // depType is calculated when `yarn upgrade` command is used
-      const target = depType || this.flagToOrigin;
-
-      f(pattern, ref.registry, target, pkg.name, version);
-    }
-  }
-}
-
-exports.Add = Add;
-function hasWrapper(commander) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Installs a package and any packages that it depends on.');
-  commander.usage('add [packages ...] [flags]');
-  commander.option('-W, --ignore-workspace-root-check', 'required to run yarn add inside a workspace root');
-  commander.option('-D, --dev', 'save package to your `devDependencies`');
-  commander.option('-P, --peer', 'save package to your `peerDependencies`');
-  commander.option('-O, --optional', 'save package to your `optionalDependencies`');
-  commander.option('-E, --exact', 'install exact version');
-  commander.option('-T, --tilde', 'install most recent release with the same minor version');
-  commander.option('-A, --audit', 'Run vulnerability audit on installed packages');
-}
-
-/***/ }),
-/* 166 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.pack = exports.packTarball = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let packTarball = exports.packTarball = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, { mapHeader } = {}) {
-    const pkg = yield config.readRootManifest();
-    const bundleDependencies = pkg.bundleDependencies,
-          main = pkg.main,
-          onlyFiles = pkg.files;
-
-    // include required files
-
-    let filters = NEVER_IGNORE.slice();
-    // include default filters unless `files` is used
-    if (!onlyFiles) {
-      filters = filters.concat(DEFAULT_IGNORE);
-    }
-    if (main) {
-      filters = filters.concat((0, (_filter || _load_filter()).ignoreLinesToRegex)(['!/' + main]));
-    }
-
-    // include bundleDependencies
-    let bundleDependenciesFiles = [];
-    if (bundleDependencies) {
-      for (var _iterator = bundleDependencies, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref2 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref2 = _i.value;
-        }
-
-        const dependency = _ref2;
-
-        const dependencyList = depsFor(dependency, config.cwd);
-
-        for (var _iterator2 = dependencyList, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-          var _ref3;
-
-          if (_isArray2) {
-            if (_i2 >= _iterator2.length) break;
-            _ref3 = _iterator2[_i2++];
-          } else {
-            _i2 = _iterator2.next();
-            if (_i2.done) break;
-            _ref3 = _i2.value;
-          }
-
-          const dep = _ref3;
-
-          const filesForBundledDep = yield (_fs || _load_fs()).walk(dep.baseDir, null, new Set(FOLDERS_IGNORE));
-          bundleDependenciesFiles = bundleDependenciesFiles.concat(filesForBundledDep);
-        }
-      }
-    }
-
-    // `files` field
-    if (onlyFiles) {
-      let lines = ['*'];
-      lines = lines.concat(onlyFiles.map(function (filename) {
-        return `!${filename}`;
-      }), onlyFiles.map(function (filename) {
-        return `!${path.join(filename, '**')}`;
-      }));
-      const regexes = (0, (_filter || _load_filter()).ignoreLinesToRegex)(lines, './');
-      filters = filters.concat(regexes);
-    }
-
-    const files = yield (_fs || _load_fs()).walk(config.cwd, null, new Set(FOLDERS_IGNORE));
-    const dotIgnoreFiles = (0, (_filter || _load_filter()).filterOverridenGitignores)(files);
-
-    // create ignores
-    for (var _iterator3 = dotIgnoreFiles, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref4 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref4 = _i3.value;
-      }
-
-      const file = _ref4;
-
-      const raw = yield (_fs || _load_fs()).readFile(file.absolute);
-      const lines = raw.split('\n');
-
-      const regexes = (0, (_filter || _load_filter()).ignoreLinesToRegex)(lines, path.dirname(file.relative));
-      filters = filters.concat(regexes);
-    }
-
-    // files to definitely keep, takes precedence over ignore filter
-    const keepFiles = new Set();
-
-    // files to definitely ignore
-    const ignoredFiles = new Set();
-
-    // list of files that didn't match any of our patterns, if a directory in the chain above was matched
-    // then we should inherit it
-    const possibleKeepFiles = new Set();
-
-    // apply filters
-    (0, (_filter || _load_filter()).sortFilter)(files, filters, keepFiles, possibleKeepFiles, ignoredFiles);
-
-    // add the files for the bundled dependencies to the set of files to keep
-    for (var _iterator4 = bundleDependenciesFiles, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref5 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref5 = _i4.value;
-      }
-
-      const file = _ref5;
-
-      const realPath = yield (_fs || _load_fs()).realpath(config.cwd);
-      keepFiles.add(path.relative(realPath, file.absolute));
-    }
-
-    return packWithIgnoreAndHeaders(config.cwd, function (name) {
-      const relative = path.relative(config.cwd, name);
-      // Don't ignore directories, since we need to recurse inside them to check for unignored files.
-      if (fs2.lstatSync(name).isDirectory()) {
-        const isParentOfKeptFile = Array.from(keepFiles).some(function (name) {
-          return !path.relative(relative, name).startsWith('..');
-        });
-        return !isParentOfKeptFile;
-      }
-      // Otherwise, ignore a file if we're not supposed to keep it.
-      return !keepFiles.has(relative);
-    }, { mapHeader });
-  });
-
-  return function packTarball(_x) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let pack = exports.pack = (() => {
-  var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    const packer = yield packTarball(config);
-    const compressor = packer.pipe(new zlib.Gzip());
-
-    return compressor;
-  });
-
-  return function pack(_x2) {
-    return _ref6.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const pkg = yield config.readRootManifest();
-    if (!pkg.name) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noName'));
-    }
-    if (!pkg.version) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noVersion'));
-    }
-
-    const normaliseScope = function normaliseScope(name) {
-      return name[0] === '@' ? name.substr(1).replace('/', '-') : name;
-    };
-    const filename = flags.filename || path.join(config.cwd, `${normaliseScope(pkg.name)}-v${pkg.version}.tgz`);
-
-    yield config.executeLifecycleScript('prepack');
-
-    const stream = yield pack(config);
-
-    yield new Promise(function (resolve, reject) {
-      stream.pipe(fs2.createWriteStream(filename));
-      stream.on('error', reject);
-      stream.on('close', resolve);
-    });
-
-    yield config.executeLifecycleScript('postpack');
-
-    reporter.success(reporter.lang('packWroteTarball', filename));
-  });
-
-  return function run(_x3, _x4, _x5, _x6) {
-    return _ref7.apply(this, arguments);
-  };
-})();
-
-exports.packWithIgnoreAndHeaders = packWithIgnoreAndHeaders;
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _filter;
-
-function _load_filter() {
-  return _filter = __webpack_require__(372);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const zlib = __webpack_require__(198);
-const path = __webpack_require__(0);
-const tar = __webpack_require__(193);
-const fs2 = __webpack_require__(5);
-const depsFor = __webpack_require__(678);
-
-const FOLDERS_IGNORE = [
-// never allow version control folders
-'.git', 'CVS', '.svn', '.hg', 'node_modules'];
-
-const DEFAULT_IGNORE = (0, (_filter || _load_filter()).ignoreLinesToRegex)([...FOLDERS_IGNORE,
-
-// ignore cruft
-'yarn.lock', '.lock-wscript', '.wafpickle-{0..9}', '*.swp', '._*', 'npm-debug.log', 'yarn-error.log', '.npmrc', '.yarnrc', '.npmignore', '.gitignore', '.DS_Store']);
-
-const NEVER_IGNORE = (0, (_filter || _load_filter()).ignoreLinesToRegex)([
-// never ignore these files
-'!/package.json', '!/readme*', '!/+(license|licence)*', '!/+(changes|changelog|history)*']);
-
-function packWithIgnoreAndHeaders(cwd, ignoreFunction, { mapHeader } = {}) {
-  return tar.pack(cwd, {
-    ignore: ignoreFunction,
-    map: header => {
-      const suffix = header.name === '.' ? '' : `/${header.name}`;
-      header.name = `package${suffix}`;
-      delete header.uid;
-      delete header.gid;
-      return mapHeader ? mapHeader(header) : header;
-    }
-  });
-}
-
-function setFlags(commander) {
-  commander.description('Creates a compressed gzip archive of package dependencies.');
-  commander.option('-f, --filename <filename>', 'filename');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 167 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireDefault(__webpack_require__(220));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _mutex;
-
-function _load_mutex() {
-  return _mutex = _interopRequireDefault(__webpack_require__(375));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint no-unused-vars: 0 */
-
-const cmdShim = __webpack_require__(201);
-const path = __webpack_require__(0);
-
-class BaseFetcher {
-  constructor(dest, remote, config) {
-    this.reporter = config.reporter;
-    this.packageName = remote.packageName;
-    this.reference = remote.reference;
-    this.registry = remote.registry;
-    this.hash = remote.hash;
-    this.remote = remote;
-    this.config = config;
-    this.dest = dest;
-  }
-
-  setupMirrorFromCache() {
-    // fetcher subclasses may use this to perform actions such as copying over a cached tarball to the offline
-    // mirror etc
-    return Promise.resolve();
-  }
-
-  _fetch() {
-    return Promise.reject(new Error('Not implemented'));
-  }
-
-  fetch(defaultManifest) {
-    var _this = this;
-
-    return (_fs || _load_fs()).lockQueue.push(this.dest, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield (_fs || _load_fs()).mkdirp(_this.dest);
-
-      // fetch package and get the hash
-
-      var _ref2 = yield _this._fetch();
-
-      const hash = _ref2.hash;
-
-
-      const pkg = yield (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-        // load the new normalized manifest
-        try {
-          return yield _this.config.readManifest(_this.dest, _this.registry);
-        } catch (e) {
-          if (e.code === 'ENOENT' && defaultManifest) {
-            return (0, (_index || _load_index()).default)(defaultManifest, _this.dest, _this.config, false);
-          } else {
-            throw e;
-          }
-        }
-      })();
-
-      if (pkg.bin) {
-        for (var _iterator = Object.keys(pkg.bin), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-          var _ref4;
-
-          if (_isArray) {
-            if (_i >= _iterator.length) break;
-            _ref4 = _iterator[_i++];
-          } else {
-            _i = _iterator.next();
-            if (_i.done) break;
-            _ref4 = _i.value;
-          }
-
-          const binName = _ref4;
-
-          const binDest = `${_this.dest}/.bin`;
-
-          // Using any sort of absolute path here would prevent makePortableProxyScript from preserving symlinks when
-          // calling the binary
-          const src = path.resolve(_this.dest, pkg.bin[binName]);
-
-          if (yield (_fs || _load_fs()).exists(src)) {
-            // We ensure that the target is executable
-            yield (_fs || _load_fs()).chmod(src, 0o755);
-          }
-
-          yield (_fs || _load_fs()).mkdirp(binDest);
-          if (process.platform === 'win32') {
-            const unlockMutex = yield (0, (_mutex || _load_mutex()).default)(src);
-            try {
-              yield cmdShim.ifExists(src, `${binDest}/${binName}`, { createPwshFile: false });
-            } finally {
-              unlockMutex();
-            }
-          } else {
-            yield (_fs || _load_fs()).symlink(src, `${binDest}/${binName}`);
-          }
-        }
-      }
-
-      yield (_fs || _load_fs()).writeFile(path.join(_this.dest, (_constants || _load_constants()).METADATA_FILENAME), JSON.stringify({
-        manifest: pkg,
-        artifacts: [],
-        remote: _this.remote,
-        registry: _this.registry,
-        hash
-      }, null, '  '));
-
-      return {
-        hash,
-        dest: _this.dest,
-        package: pkg,
-        cached: false
-      };
-    }));
-  }
-}
-exports.default = BaseFetcher;
-
-/***/ }),
-/* 168 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.hash = hash;
-const crypto = __webpack_require__(11);
-const stream = __webpack_require__(23);
-
-function hash(content, type = 'md5') {
-  return crypto.createHash(type).update(content).digest('hex');
-}
-
-class HashStream extends stream.Transform {
-  constructor(options) {
-    super(options);
-    this._hash = crypto.createHash('sha1');
-    this._updated = false;
-  }
-
-  _transform(chunk, encoding, callback) {
-    this._updated = true;
-    this._hash.update(chunk);
-    callback(null, chunk);
-  }
-
-  getHash() {
-    return this._hash.digest('hex');
-  }
-
-  test(sum) {
-    return this._updated && sum === this.getHash();
-  }
-}
-exports.HashStream = HashStream;
-
-/***/ }),
-/* 169 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = guessName;
-
-var _url;
-
-function _load_url() {
-  return _url = _interopRequireDefault(__webpack_require__(24));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function cleanup(name) {
-  name = name.replace(/-\d+\.\d+\.\d+/, '');
-  return name.replace(/\.git$|\.zip$|\.tar\.gz$|\.tar\.bz2$/, '');
-}
-
-function guessNameFallback(source) {
-  // If cannot parse as url, just return cleaned up last part
-  const parts = source.split('/');
-  return cleanup(parts[parts.length - 1]);
-}
-
-function guessName(source) {
-  try {
-    const parsed = (_url || _load_url()).default.parse(source);
-
-    if (!parsed.pathname) {
-      return guessNameFallback(source);
-    }
-
-    const parts = parsed.pathname.split('/');
-
-    // Priority goes to part that ends with .git
-    for (var _iterator = parts, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const part = _ref;
-
-      if (part.match(/\.git$/)) {
-        return cleanup(part);
-      }
-    }
-
-    // Most likely a directory
-    if (parsed.host == null) {
-      return cleanup(parts[parts.length - 1]);
-    }
-
-    // A site like github or gitlab
-    if (parts.length > 2) {
-      return cleanup(parts[2]);
-    }
-
-    // Privately hosted package?
-    if (parts.length > 1) {
-      return cleanup(parts[1]);
-    }
-
-    return guessNameFallback(source);
-  } catch (e) {
-    return guessNameFallback(source);
-  }
-}
-
-/***/ }),
-/* 170 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// fallback for non-array-like ES3 and non-enumerable old V8 strings
-var cof = __webpack_require__(69);
-// eslint-disable-next-line no-prototype-builtins
-module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
-  return cof(it) == 'String' ? it.split('') : Object(it);
-};
-
-
-/***/ }),
-/* 171 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 19.1.2.14 / 15.2.3.14 Object.keys(O)
-var $keys = __webpack_require__(249);
-var enumBugKeys = __webpack_require__(127);
-
-module.exports = Object.keys || function keys(O) {
-  return $keys(O, enumBugKeys);
-};
-
-
-/***/ }),
-/* 172 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 7.1.13 ToObject(argument)
-var defined = __webpack_require__(91);
-module.exports = function (it) {
-  return Object(defined(it));
-};
-
-
-/***/ }),
-/* 173 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var once = __webpack_require__(83);
-
-var noop = function() {};
-
-var isRequest = function(stream) {
-	return stream.setHeader && typeof stream.abort === 'function';
-};
-
-var isChildProcess = function(stream) {
-	return stream.stdio && Array.isArray(stream.stdio) && stream.stdio.length === 3
-};
-
-var eos = function(stream, opts, callback) {
-	if (typeof opts === 'function') return eos(stream, null, opts);
-	if (!opts) opts = {};
-
-	callback = once(callback || noop);
-
-	var ws = stream._writableState;
-	var rs = stream._readableState;
-	var readable = opts.readable || (opts.readable !== false && stream.readable);
-	var writable = opts.writable || (opts.writable !== false && stream.writable);
-
-	var onlegacyfinish = function() {
-		if (!stream.writable) onfinish();
-	};
-
-	var onfinish = function() {
-		writable = false;
-		if (!readable) callback.call(stream);
-	};
-
-	var onend = function() {
-		readable = false;
-		if (!writable) callback.call(stream);
-	};
-
-	var onexit = function(exitCode) {
-		callback.call(stream, exitCode ? new Error('exited with error code: ' + exitCode) : null);
-	};
-
-	var onerror = function(err) {
-		callback.call(stream, err);
-	};
-
-	var onclose = function() {
-		if (readable && !(rs && rs.ended)) return callback.call(stream, new Error('premature close'));
-		if (writable && !(ws && ws.ended)) return callback.call(stream, new Error('premature close'));
-	};
-
-	var onrequest = function() {
-		stream.req.on('finish', onfinish);
-	};
-
-	if (isRequest(stream)) {
-		stream.on('complete', onfinish);
-		stream.on('abort', onclose);
-		if (stream.req) onrequest();
-		else stream.on('request', onrequest);
-	} else if (writable && !ws) { // legacy streams
-		stream.on('end', onlegacyfinish);
-		stream.on('close', onlegacyfinish);
-	}
-
-	if (isChildProcess(stream)) stream.on('exit', onexit);
-
-	stream.on('end', onend);
-	stream.on('finish', onfinish);
-	if (opts.error !== false) stream.on('error', onerror);
-	stream.on('close', onclose);
-
-	return function() {
-		stream.removeListener('complete', onfinish);
-		stream.removeListener('abort', onclose);
-		stream.removeListener('request', onrequest);
-		if (stream.req) stream.req.removeListener('finish', onfinish);
-		stream.removeListener('end', onlegacyfinish);
-		stream.removeListener('close', onlegacyfinish);
-		stream.removeListener('finish', onfinish);
-		stream.removeListener('exit', onexit);
-		stream.removeListener('end', onend);
-		stream.removeListener('error', onerror);
-		stream.removeListener('close', onclose);
-	};
-};
-
-module.exports = eos;
-
-
-/***/ }),
-/* 174 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2012 Joyent, Inc.  All rights reserved.
-
-var assert = __webpack_require__(16);
-var sshpk = __webpack_require__(328);
-var util = __webpack_require__(3);
-
-var HASH_ALGOS = {
-  'sha1': true,
-  'sha256': true,
-  'sha512': true
-};
-
-var PK_ALGOS = {
-  'rsa': true,
-  'dsa': true,
-  'ecdsa': true
-};
-
-function HttpSignatureError(message, caller) {
-  if (Error.captureStackTrace)
-    Error.captureStackTrace(this, caller || HttpSignatureError);
-
-  this.message = message;
-  this.name = caller.name;
-}
-util.inherits(HttpSignatureError, Error);
-
-function InvalidAlgorithmError(message) {
-  HttpSignatureError.call(this, message, InvalidAlgorithmError);
-}
-util.inherits(InvalidAlgorithmError, HttpSignatureError);
-
-function validateAlgorithm(algorithm) {
-  var alg = algorithm.toLowerCase().split('-');
-
-  if (alg.length !== 2) {
-    throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' is not a ' +
-      'valid algorithm'));
-  }
-
-  if (alg[0] !== 'hmac' && !PK_ALGOS[alg[0]]) {
-    throw (new InvalidAlgorithmError(alg[0].toUpperCase() + ' type keys ' +
-      'are not supported'));
-  }
-
-  if (!HASH_ALGOS[alg[1]]) {
-    throw (new InvalidAlgorithmError(alg[1].toUpperCase() + ' is not a ' +
-      'supported hash algorithm'));
-  }
-
-  return (alg);
-}
-
-///--- API
-
-module.exports = {
-
-  HASH_ALGOS: HASH_ALGOS,
-  PK_ALGOS: PK_ALGOS,
-
-  HttpSignatureError: HttpSignatureError,
-  InvalidAlgorithmError: InvalidAlgorithmError,
-
-  validateAlgorithm: validateAlgorithm,
-
-  /**
-   * Converts an OpenSSH public key (rsa only) to a PKCS#8 PEM file.
-   *
-   * The intent of this module is to interoperate with OpenSSL only,
-   * specifically the node crypto module's `verify` method.
-   *
-   * @param {String} key an OpenSSH public key.
-   * @return {String} PEM encoded form of the RSA public key.
-   * @throws {TypeError} on bad input.
-   * @throws {Error} on invalid ssh key formatted data.
-   */
-  sshKeyToPEM: function sshKeyToPEM(key) {
-    assert.string(key, 'ssh_key');
-
-    var k = sshpk.parseKey(key, 'ssh');
-    return (k.toString('pem'));
-  },
-
-
-  /**
-   * Generates an OpenSSH fingerprint from an ssh public key.
-   *
-   * @param {String} key an OpenSSH public key.
-   * @return {String} key fingerprint.
-   * @throws {TypeError} on bad input.
-   * @throws {Error} if what you passed doesn't look like an ssh public key.
-   */
-  fingerprint: function fingerprint(key) {
-    assert.string(key, 'ssh_key');
-
-    var k = sshpk.parseKey(key, 'ssh');
-    return (k.fingerprint('md5').toString('hex'));
-  },
-
-  /**
-   * Converts a PKGCS#8 PEM file to an OpenSSH public key (rsa)
-   *
-   * The reverse of the above function.
-   */
-  pemToRsaSSHKey: function pemToRsaSSHKey(pem, comment) {
-    assert.equal('string', typeof (pem), 'typeof pem');
-
-    var k = sshpk.parseKey(pem, 'pem');
-    k.comment = comment;
-    return (k.toString('ssh'));
-  }
-};
-
-
-/***/ }),
-/* 175 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var chalk = __webpack_require__(30);
-var figures = __webpack_require__(270);
-
-/**
- * Separator object
- * Used to space/separate choices group
- * @constructor
- * @param {String} line   Separation line content (facultative)
- */
-
-class Separator {
-  constructor(line) {
-    this.type = 'separator';
-    this.line = chalk.dim(line || new Array(15).join(figures.line));
-  }
-
-  /**
-   * Stringify separator
-   * @return {String} the separator display string
-   */
-  toString() {
-    return this.line;
-  }
-}
-
-/**
- * Helper function returning false if object is a separator
- * @param  {Object} obj object to test against
- * @return {Boolean}    `false` if object is a separator
- */
-
-Separator.exclude = function(obj) {
-  return obj.type !== 'separator';
-};
-
-module.exports = Separator;
-
-
-/***/ }),
-/* 176 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-
-/**
- * The paginator keeps track of a pointer index in a list and returns
- * a subset of the choices if the list is too long.
- */
-
-class Paginator {
-  constructor(screen) {
-    this.pointer = 0;
-    this.lastIndex = 0;
-    this.screen = screen;
-  }
-
-  paginate(output, active, pageSize) {
-    pageSize = pageSize || 7;
-    var middleOfList = Math.floor(pageSize / 2);
-    var lines = output.split('\n');
-
-    if (this.screen) {
-      lines = this.screen.breakLines(lines);
-      active = _.sum(lines.map(lineParts => lineParts.length).splice(0, active));
-      lines = _.flatten(lines);
-    }
-
-    // Make sure there's enough lines to paginate
-    if (lines.length <= pageSize) {
-      return output;
-    }
-
-    // Move the pointer only when the user go down and limit it to the middle of the list
-    if (
-      this.pointer < middleOfList &&
-      this.lastIndex < active &&
-      active - this.lastIndex < pageSize
-    ) {
-      this.pointer = Math.min(middleOfList, this.pointer + active - this.lastIndex);
-    }
-    this.lastIndex = active;
-
-    // Duplicate the lines so it give an infinite list look
-    var infinite = _.flatten([lines, lines, lines]);
-    var topIndex = Math.max(0, active + lines.length - this.pointer);
-
-    var section = infinite.splice(topIndex, pageSize).join('\n');
-    return section + '\n' + chalk.dim('(Move up and down to reveal more choices)');
-  }
-}
-
-module.exports = Paginator;
-
-
-/***/ }),
-/* 177 */
-/***/ (function(module, exports) {
-
-/*!
- * is-extglob <https://github.com/jonschlinkert/is-extglob>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-module.exports = function isExtglob(str) {
-  return typeof str === 'string'
-    && /[@?!+*]\(/.test(str);
-};
-
-
-/***/ }),
-/* 178 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*!
- * is-glob <https://github.com/jonschlinkert/is-glob>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-var isExtglob = __webpack_require__(177);
-
-module.exports = function isGlob(str) {
-  return typeof str === 'string'
-    && (/[*!?{}(|)[\]]/.test(str)
-     || isExtglob(str));
-};
-
-/***/ }),
-/* 179 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var isBuffer = __webpack_require__(729);
-var toString = Object.prototype.toString;
-
-/**
- * Get the native `typeof` a value.
- *
- * @param  {*} `val`
- * @return {*} Native javascript type
- */
-
-module.exports = function kindOf(val) {
-  // primitivies
-  if (typeof val === 'undefined') {
-    return 'undefined';
-  }
-  if (val === null) {
-    return 'null';
-  }
-  if (val === true || val === false || val instanceof Boolean) {
-    return 'boolean';
-  }
-  if (typeof val === 'string' || val instanceof String) {
-    return 'string';
-  }
-  if (typeof val === 'number' || val instanceof Number) {
-    return 'number';
-  }
-
-  // functions
-  if (typeof val === 'function' || val instanceof Function) {
-    return 'function';
-  }
-
-  // array
-  if (typeof Array.isArray !== 'undefined' && Array.isArray(val)) {
-    return 'array';
-  }
-
-  // check for instances of RegExp and Date before calling `toString`
-  if (val instanceof RegExp) {
-    return 'regexp';
-  }
-  if (val instanceof Date) {
-    return 'date';
-  }
-
-  // other objects
-  var type = toString.call(val);
-
-  if (type === '[object RegExp]') {
-    return 'regexp';
-  }
-  if (type === '[object Date]') {
-    return 'date';
-  }
-  if (type === '[object Arguments]') {
-    return 'arguments';
-  }
-  if (type === '[object Error]') {
-    return 'error';
-  }
-
-  // buffer
-  if (isBuffer(val)) {
-    return 'buffer';
-  }
-
-  // es6: Map, WeakMap, Set, WeakSet
-  if (type === '[object Set]') {
-    return 'set';
-  }
-  if (type === '[object WeakSet]') {
-    return 'weakset';
-  }
-  if (type === '[object Map]') {
-    return 'map';
-  }
-  if (type === '[object WeakMap]') {
-    return 'weakmap';
-  }
-  if (type === '[object Symbol]') {
-    return 'symbol';
-  }
-
-  // typed arrays
-  if (type === '[object Int8Array]') {
-    return 'int8array';
-  }
-  if (type === '[object Uint8Array]') {
-    return 'uint8array';
-  }
-  if (type === '[object Uint8ClampedArray]') {
-    return 'uint8clampedarray';
-  }
-  if (type === '[object Int16Array]') {
-    return 'int16array';
-  }
-  if (type === '[object Uint16Array]') {
-    return 'uint16array';
-  }
-  if (type === '[object Int32Array]') {
-    return 'int32array';
-  }
-  if (type === '[object Uint32Array]') {
-    return 'uint32array';
-  }
-  if (type === '[object Float32Array]') {
-    return 'float32array';
-  }
-  if (type === '[object Float64Array]') {
-    return 'float64array';
-  }
-
-  // must be a plain object
-  return 'object';
-};
-
-
-/***/ }),
-/* 180 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-if (!process.version ||
-    process.version.indexOf('v0.') === 0 ||
-    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
-  module.exports = { nextTick: nextTick };
-} else {
-  module.exports = process
-}
-
-function nextTick(fn, arg1, arg2, arg3) {
-  if (typeof fn !== 'function') {
-    throw new TypeError('"callback" argument must be a function');
-  }
-  var len = arguments.length;
-  var args, i;
-  switch (len) {
-  case 0:
-  case 1:
-    return process.nextTick(fn);
-  case 2:
-    return process.nextTick(function afterTickOne() {
-      fn.call(null, arg1);
-    });
-  case 3:
-    return process.nextTick(function afterTickTwo() {
-      fn.call(null, arg1, arg2);
-    });
-  case 4:
-    return process.nextTick(function afterTickThree() {
-      fn.call(null, arg1, arg2, arg3);
-    });
-  default:
-    args = new Array(len - 1);
-    i = 0;
-    while (i < args.length) {
-      args[i++] = arguments[i];
-    }
-    return process.nextTick(function afterTick() {
-      fn.apply(null, args);
-    });
-  }
-}
-
-
-
-/***/ }),
-/* 181 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var isPromise = __webpack_require__(741);
-
-/**
- * Return a function that will run a function asynchronously or synchronously
- *
- * example:
- * runAsync(wrappedFunction, callback)(...args);
- *
- * @param   {Function} func  Function to run
- * @param   {Function} cb    Callback function passed the `func` returned value
- * @return  {Function(arguments)} Arguments to pass to `func`. This function will in turn
- *                                return a Promise (Node >= 0.12) or call the callbacks.
- */
-
-var runAsync = module.exports = function (func, cb) {
-  cb = cb || function () {};
-
-  return function () {
-    var async = false;
-    var args = arguments;
-
-    var promise = new Promise(function (resolve, reject) {
-      var answer = func.apply({
-        async: function () {
-          async = true;
-          return function (err, value) {
-            if (err) {
-              reject(err);
-            } else {
-              resolve(value);
-            }
-          };
-        }
-      }, Array.prototype.slice.call(args));
-
-      if (!async) {
-        if (isPromise(answer)) {
-          answer.then(resolve, reject);
-        } else {
-          resolve(answer);
-        }
-      }
-    });
-
-    promise.then(cb.bind(null, null), cb);
-
-    return promise;
-  }
-};
-
-runAsync.cb = function (func, cb) {
-  return runAsync(function () {
-    var args = Array.prototype.slice.call(arguments);
-    if (args.length === func.length - 1) {
-      args.push(this.async());
-    }
-    return func.apply(this, args);
-  }, cb);
-};
-
-
-/***/ }),
-/* 182 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__internal_Observable__ = __webpack_require__(12);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Observable", function() { return __WEBPACK_IMPORTED_MODULE_0__internal_Observable__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__internal_observable_ConnectableObservable__ = __webpack_require__(423);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "ConnectableObservable", function() { return __WEBPACK_IMPORTED_MODULE_1__internal_observable_ConnectableObservable__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__internal_operators_groupBy__ = __webpack_require__(433);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "GroupedObservable", function() { return __WEBPACK_IMPORTED_MODULE_2__internal_operators_groupBy__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__internal_symbol_observable__ = __webpack_require__(117);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "observable", function() { return __WEBPACK_IMPORTED_MODULE_3__internal_symbol_observable__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__internal_Subject__ = __webpack_require__(36);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Subject", function() { return __WEBPACK_IMPORTED_MODULE_4__internal_Subject__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__internal_BehaviorSubject__ = __webpack_require__(419);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "BehaviorSubject", function() { return __WEBPACK_IMPORTED_MODULE_5__internal_BehaviorSubject__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__internal_ReplaySubject__ = __webpack_require__(308);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "ReplaySubject", function() { return __WEBPACK_IMPORTED_MODULE_6__internal_ReplaySubject__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_7__internal_AsyncSubject__ = __webpack_require__(183);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "AsyncSubject", function() { return __WEBPACK_IMPORTED_MODULE_7__internal_AsyncSubject__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_8__internal_scheduler_asap__ = __webpack_require__(438);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "asapScheduler", function() { return __WEBPACK_IMPORTED_MODULE_8__internal_scheduler_asap__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_9__internal_scheduler_async__ = __webpack_require__(40);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "asyncScheduler", function() { return __WEBPACK_IMPORTED_MODULE_9__internal_scheduler_async__["a"]; });
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "queueScheduler", function() { return __WEBPACK_IMPORTED_MODULE_10__internal_scheduler_queue__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_11__internal_scheduler_animationFrame__ = __webpack_require__(926);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "animationFrameScheduler", function() { return __WEBPACK_IMPORTED_MODULE_11__internal_scheduler_animationFrame__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_12__internal_scheduler_VirtualTimeScheduler__ = __webpack_require__(925);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "VirtualTimeScheduler", function() { return __WEBPACK_IMPORTED_MODULE_12__internal_scheduler_VirtualTimeScheduler__["a"]; });
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "VirtualAction", function() { return __WEBPACK_IMPORTED_MODULE_12__internal_scheduler_VirtualTimeScheduler__["b"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_13__internal_Scheduler__ = __webpack_require__(421);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Scheduler", function() { return __WEBPACK_IMPORTED_MODULE_13__internal_Scheduler__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_14__internal_Subscription__ = __webpack_require__(25);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Subscription", function() { return __WEBPACK_IMPORTED_MODULE_14__internal_Subscription__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_15__internal_Subscriber__ = __webpack_require__(7);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Subscriber", function() { return __WEBPACK_IMPORTED_MODULE_15__internal_Subscriber__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_16__internal_Notification__ = __webpack_require__(184);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "Notification", function() { return __WEBPACK_IMPORTED_MODULE_16__internal_Notification__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_17__internal_util_pipe__ = __webpack_require__(324);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "pipe", function() { return __WEBPACK_IMPORTED_MODULE_17__internal_util_pipe__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_18__internal_util_noop__ = __webpack_require__(191);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "noop", function() { return __WEBPACK_IMPORTED_MODULE_18__internal_util_noop__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_19__internal_util_identity__ = __webpack_require__(118);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return __WEBPACK_IMPORTED_MODULE_19__internal_util_identity__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_20__internal_util_isObservable__ = __webpack_require__(930);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "isObservable", function() { return __WEBPACK_IMPORTED_MODULE_20__internal_util_isObservable__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_21__internal_util_ArgumentOutOfRangeError__ = __webpack_require__(152);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "ArgumentOutOfRangeError", function() { return __WEBPACK_IMPORTED_MODULE_21__internal_util_ArgumentOutOfRangeError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_22__internal_util_EmptyError__ = __webpack_require__(153);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "EmptyError", function() { return __WEBPACK_IMPORTED_MODULE_22__internal_util_EmptyError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_23__internal_util_ObjectUnsubscribedError__ = __webpack_require__(189);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "ObjectUnsubscribedError", function() { return __WEBPACK_IMPORTED_MODULE_23__internal_util_ObjectUnsubscribedError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_24__internal_util_UnsubscriptionError__ = __webpack_require__(441);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "UnsubscriptionError", function() { return __WEBPACK_IMPORTED_MODULE_24__internal_util_UnsubscriptionError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_25__internal_util_TimeoutError__ = __webpack_require__(440);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "TimeoutError", function() { return __WEBPACK_IMPORTED_MODULE_25__internal_util_TimeoutError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_26__internal_observable_bindCallback__ = __webpack_require__(823);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "bindCallback", function() { return __WEBPACK_IMPORTED_MODULE_26__internal_observable_bindCallback__["a"]; });
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "bindNodeCallback", function() { return __WEBPACK_IMPORTED_MODULE_27__internal_observable_bindNodeCallback__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_28__internal_observable_combineLatest__ = __webpack_require__(309);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "combineLatest", function() { return __WEBPACK_IMPORTED_MODULE_28__internal_observable_combineLatest__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_29__internal_observable_concat__ = __webpack_require__(186);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "concat", function() { return __WEBPACK_IMPORTED_MODULE_29__internal_observable_concat__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_30__internal_observable_defer__ = __webpack_require__(310);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "defer", function() { return __WEBPACK_IMPORTED_MODULE_30__internal_observable_defer__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_31__internal_observable_empty__ = __webpack_require__(39);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "empty", function() { return __WEBPACK_IMPORTED_MODULE_31__internal_observable_empty__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_32__internal_observable_forkJoin__ = __webpack_require__(825);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "forkJoin", function() { return __WEBPACK_IMPORTED_MODULE_32__internal_observable_forkJoin__["a"]; });
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "iif", function() { return __WEBPACK_IMPORTED_MODULE_37__internal_observable_iif__["a"]; });
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "interval", function() { return __WEBPACK_IMPORTED_MODULE_38__internal_observable_interval__["a"]; });
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_42__internal_observable_onErrorResumeNext__ = __webpack_require__(834);
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_43__internal_observable_pairs__ = __webpack_require__(835);
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_44__internal_observable_race__ = __webpack_require__(426);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "race", function() { return __WEBPACK_IMPORTED_MODULE_44__internal_observable_race__["a"]; });
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-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "range", function() { return __WEBPACK_IMPORTED_MODULE_45__internal_observable_range__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_46__internal_observable_throwError__ = __webpack_require__(313);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "throwError", function() { return __WEBPACK_IMPORTED_MODULE_46__internal_observable_throwError__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_47__internal_observable_timer__ = __webpack_require__(427);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "timer", function() { return __WEBPACK_IMPORTED_MODULE_47__internal_observable_timer__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_48__internal_observable_using__ = __webpack_require__(837);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "using", function() { return __WEBPACK_IMPORTED_MODULE_48__internal_observable_using__["a"]; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_49__internal_observable_zip__ = __webpack_require__(314);
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "zip", function() { return __WEBPACK_IMPORTED_MODULE_49__internal_observable_zip__["a"]; });
-/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "EMPTY", function() { return __WEBPACK_IMPORTED_MODULE_31__internal_observable_empty__["b"]; });
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-                return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__observable_of__["a" /* of */])(this.value);
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-                return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__observable_throwError__["a" /* throwError */])(this.error);
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-        return Notification.completeNotification;
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-/***/ (function(module, __webpack_exports__, __webpack_require__) {
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-/***/ }),
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-/***/ (function(module, __webpack_exports__, __webpack_require__) {
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-"use strict";
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-        return function reduceOperatorFunctionWithSeed(source) {
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-var throwIfEmpty = function (errorFactory) {
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-function isNumeric(val) {
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-/***/ (function(module, exports, __webpack_require__) {
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-// Copyright 2015 Joyent, Inc.
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-module.exports = {
-	read: read,
-	readSSHPrivate: readSSHPrivate,
-	write: write
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-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
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-var crypto = __webpack_require__(11);
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-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
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-var rfc4253 = __webpack_require__(103);
-var SSHBuffer = __webpack_require__(159);
-var errors = __webpack_require__(74);
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-var bcrypt;
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-function read(buf, options) {
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-}
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-var MAGIC = 'openssh-key-v1';
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-function readSSHPrivate(type, buf, options) {
-	buf = new SSHBuffer({buffer: buf});
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-	var magic = buf.readCString();
-	assert.strictEqual(magic, MAGIC, 'bad magic string');
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-	var cipher = buf.readString();
-	var kdf = buf.readString();
-	var kdfOpts = buf.readBuffer();
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-	var nkeys = buf.readInt();
-	if (nkeys !== 1) {
-		throw (new Error('OpenSSH-format key file contains ' +
-		    'multiple keys: this is unsupported.'));
-	}
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-	var pubKey = buf.readBuffer();
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-	if (type === 'public') {
-		assert.ok(buf.atEnd(), 'excess bytes left after key');
-		return (rfc4253.read(pubKey));
-	}
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-	var privKeyBlob = buf.readBuffer();
-	assert.ok(buf.atEnd(), 'excess bytes left after key');
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-	var kdfOptsBuf = new SSHBuffer({ buffer: kdfOpts });
-	switch (kdf) {
-	case 'none':
-		if (cipher !== 'none') {
-			throw (new Error('OpenSSH-format key uses KDF "none" ' +
-			     'but specifies a cipher other than "none"'));
-		}
-		break;
-	case 'bcrypt':
-		var salt = kdfOptsBuf.readBuffer();
-		var rounds = kdfOptsBuf.readInt();
-		var cinf = utils.opensshCipherInfo(cipher);
-		if (bcrypt === undefined) {
-			bcrypt = __webpack_require__(379);
-		}
-
-		if (typeof (options.passphrase) === 'string') {
-			options.passphrase = Buffer.from(options.passphrase,
-			    'utf-8');
-		}
-		if (!Buffer.isBuffer(options.passphrase)) {
-			throw (new errors.KeyEncryptedError(
-			    options.filename, 'OpenSSH'));
-		}
-
-		var pass = new Uint8Array(options.passphrase);
-		var salti = new Uint8Array(salt);
-		/* Use the pbkdf to derive both the key and the IV. */
-		var out = new Uint8Array(cinf.keySize + cinf.blockSize);
-		var res = bcrypt.pbkdf(pass, pass.length, salti, salti.length,
-		    out, out.length, rounds);
-		if (res !== 0) {
-			throw (new Error('bcrypt_pbkdf function returned ' +
-			    'failure, parameters invalid'));
-		}
-		out = Buffer.from(out);
-		var ckey = out.slice(0, cinf.keySize);
-		var iv = out.slice(cinf.keySize, cinf.keySize + cinf.blockSize);
-		var cipherStream = crypto.createDecipheriv(cinf.opensslName,
-		    ckey, iv);
-		cipherStream.setAutoPadding(false);
-		var chunk, chunks = [];
-		cipherStream.once('error', function (e) {
-			if (e.toString().indexOf('bad decrypt') !== -1) {
-				throw (new Error('Incorrect passphrase ' +
-				    'supplied, could not decrypt key'));
-			}
-			throw (e);
-		});
-		cipherStream.write(privKeyBlob);
-		cipherStream.end();
-		while ((chunk = cipherStream.read()) !== null)
-			chunks.push(chunk);
-		privKeyBlob = Buffer.concat(chunks);
-		break;
-	default:
-		throw (new Error(
-		    'OpenSSH-format key uses unknown KDF "' + kdf + '"'));
-	}
-
-	buf = new SSHBuffer({buffer: privKeyBlob});
-
-	var checkInt1 = buf.readInt();
-	var checkInt2 = buf.readInt();
-	if (checkInt1 !== checkInt2) {
-		throw (new Error('Incorrect passphrase supplied, could not ' +
-		    'decrypt key'));
-	}
-
-	var ret = {};
-	var key = rfc4253.readInternal(ret, 'private', buf.remainder());
-
-	buf.skip(ret.consumed);
-
-	var comment = buf.readString();
-	key.comment = comment;
-
-	return (key);
-}
-
-function write(key, options) {
-	var pubKey;
-	if (PrivateKey.isPrivateKey(key))
-		pubKey = key.toPublic();
-	else
-		pubKey = key;
-
-	var cipher = 'none';
-	var kdf = 'none';
-	var kdfopts = Buffer.alloc(0);
-	var cinf = { blockSize: 8 };
-	var passphrase;
-	if (options !== undefined) {
-		passphrase = options.passphrase;
-		if (typeof (passphrase) === 'string')
-			passphrase = Buffer.from(passphrase, 'utf-8');
-		if (passphrase !== undefined) {
-			assert.buffer(passphrase, 'options.passphrase');
-			assert.optionalString(options.cipher, 'options.cipher');
-			cipher = options.cipher;
-			if (cipher === undefined)
-				cipher = 'aes128-ctr';
-			cinf = utils.opensshCipherInfo(cipher);
-			kdf = 'bcrypt';
-		}
-	}
-
-	var privBuf;
-	if (PrivateKey.isPrivateKey(key)) {
-		privBuf = new SSHBuffer({});
-		var checkInt = crypto.randomBytes(4).readUInt32BE(0);
-		privBuf.writeInt(checkInt);
-		privBuf.writeInt(checkInt);
-		privBuf.write(key.toBuffer('rfc4253'));
-		privBuf.writeString(key.comment || '');
-
-		var n = 1;
-		while (privBuf._offset % cinf.blockSize !== 0)
-			privBuf.writeChar(n++);
-		privBuf = privBuf.toBuffer();
-	}
-
-	switch (kdf) {
-	case 'none':
-		break;
-	case 'bcrypt':
-		var salt = crypto.randomBytes(16);
-		var rounds = 16;
-		var kdfssh = new SSHBuffer({});
-		kdfssh.writeBuffer(salt);
-		kdfssh.writeInt(rounds);
-		kdfopts = kdfssh.toBuffer();
-
-		if (bcrypt === undefined) {
-			bcrypt = __webpack_require__(379);
-		}
-		var pass = new Uint8Array(passphrase);
-		var salti = new Uint8Array(salt);
-		/* Use the pbkdf to derive both the key and the IV. */
-		var out = new Uint8Array(cinf.keySize + cinf.blockSize);
-		var res = bcrypt.pbkdf(pass, pass.length, salti, salti.length,
-		    out, out.length, rounds);
-		if (res !== 0) {
-			throw (new Error('bcrypt_pbkdf function returned ' +
-			    'failure, parameters invalid'));
-		}
-		out = Buffer.from(out);
-		var ckey = out.slice(0, cinf.keySize);
-		var iv = out.slice(cinf.keySize, cinf.keySize + cinf.blockSize);
-
-		var cipherStream = crypto.createCipheriv(cinf.opensslName,
-		    ckey, iv);
-		cipherStream.setAutoPadding(false);
-		var chunk, chunks = [];
-		cipherStream.once('error', function (e) {
-			throw (e);
-		});
-		cipherStream.write(privBuf);
-		cipherStream.end();
-		while ((chunk = cipherStream.read()) !== null)
-			chunks.push(chunk);
-		privBuf = Buffer.concat(chunks);
-		break;
-	default:
-		throw (new Error('Unsupported kdf ' + kdf));
-	}
-
-	var buf = new SSHBuffer({});
-
-	buf.writeCString(MAGIC);
-	buf.writeString(cipher);	/* cipher */
-	buf.writeString(kdf);		/* kdf */
-	buf.writeBuffer(kdfopts);	/* kdfoptions */
-
-	buf.writeInt(1);		/* nkeys */
-	buf.writeBuffer(pubKey.toBuffer('rfc4253'));
-
-	if (privBuf)
-		buf.writeBuffer(privBuf);
-
-	buf = buf.toBuffer();
-
-	var header;
-	if (PrivateKey.isPrivateKey(key))
-		header = 'OPENSSH PRIVATE KEY';
-	else
-		header = 'OPENSSH PUBLIC KEY';
-
-	var tmp = buf.toString('base64');
-	var len = tmp.length + (tmp.length / 70) +
-	    18 + 16 + header.length*2 + 10;
-	buf = Buffer.alloc(len);
-	var o = 0;
-	o += buf.write('-----BEGIN ' + header + '-----\n', o);
-	for (var i = 0; i < tmp.length; ) {
-		var limit = i + 70;
-		if (limit > tmp.length)
-			limit = tmp.length;
-		o += buf.write(tmp.slice(i, limit), o);
-		buf[o++] = 10;
-		i = limit;
-	}
-	o += buf.write('-----END ' + header + '-----\n', o);
-
-	return (buf.slice(0, o));
-}
-
-
-/***/ }),
-/* 193 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var chownr = __webpack_require__(600)
-var tar = __webpack_require__(460)
-var pump = __webpack_require__(781)
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-var fs = __webpack_require__(5)
-var path = __webpack_require__(0)
-var os = __webpack_require__(46)
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-var win32 = os.platform() === 'win32'
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-var noop = function () {}
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-var echo = function (name) {
-  return name
-}
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-var normalize = !win32 ? echo : function (name) {
-  return name.replace(/\\/g, '/').replace(/[:?<>|]/g, '_')
-}
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-var statAll = function (fs, stat, cwd, ignore, entries, sort) {
-  var queue = entries || ['.']
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-  return function loop (callback) {
-    if (!queue.length) return callback()
-    var next = queue.shift()
-    var nextAbs = path.join(cwd, next)
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-    stat(nextAbs, function (err, stat) {
-      if (err) return callback(err)
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-      if (!stat.isDirectory()) return callback(null, next, stat)
-
-      fs.readdir(nextAbs, function (err, files) {
-        if (err) return callback(err)
-
-        if (sort) files.sort()
-        for (var i = 0; i < files.length; i++) {
-          if (!ignore(path.join(cwd, next, files[i]))) queue.push(path.join(next, files[i]))
-        }
-
-        callback(null, next, stat)
-      })
-    })
-  }
-}
-
-var strip = function (map, level) {
-  return function (header) {
-    header.name = header.name.split('/').slice(level).join('/')
-
-    var linkname = header.linkname
-    if (linkname && (header.type === 'link' || path.isAbsolute(linkname))) {
-      header.linkname = linkname.split('/').slice(level).join('/')
-    }
-
-    return map(header)
-  }
-}
-
-exports.pack = function (cwd, opts) {
-  if (!cwd) cwd = '.'
-  if (!opts) opts = {}
-
-  var xfs = opts.fs || fs
-  var ignore = opts.ignore || opts.filter || noop
-  var map = opts.map || noop
-  var mapStream = opts.mapStream || echo
-  var statNext = statAll(xfs, opts.dereference ? xfs.stat : xfs.lstat, cwd, ignore, opts.entries, opts.sort)
-  var strict = opts.strict !== false
-  var umask = typeof opts.umask === 'number' ? ~opts.umask : ~processUmask()
-  var dmode = typeof opts.dmode === 'number' ? opts.dmode : 0
-  var fmode = typeof opts.fmode === 'number' ? opts.fmode : 0
-  var pack = opts.pack || tar.pack()
-  var finish = opts.finish || noop
-
-  if (opts.strip) map = strip(map, opts.strip)
-
-  if (opts.readable) {
-    dmode |= parseInt(555, 8)
-    fmode |= parseInt(444, 8)
-  }
-  if (opts.writable) {
-    dmode |= parseInt(333, 8)
-    fmode |= parseInt(222, 8)
-  }
-
-  var onsymlink = function (filename, header) {
-    xfs.readlink(path.join(cwd, filename), function (err, linkname) {
-      if (err) return pack.destroy(err)
-      header.linkname = normalize(linkname)
-      pack.entry(header, onnextentry)
-    })
-  }
-
-  var onstat = function (err, filename, stat) {
-    if (err) return pack.destroy(err)
-    if (!filename) {
-      if (opts.finalize !== false) pack.finalize()
-      return finish(pack)
-    }
-
-    if (stat.isSocket()) return onnextentry() // tar does not support sockets...
-
-    var header = {
-      name: normalize(filename),
-      mode: (stat.mode | (stat.isDirectory() ? dmode : fmode)) & umask,
-      mtime: stat.mtime,
-      size: stat.size,
-      type: 'file',
-      uid: stat.uid,
-      gid: stat.gid
-    }
-
-    if (stat.isDirectory()) {
-      header.size = 0
-      header.type = 'directory'
-      header = map(header) || header
-      return pack.entry(header, onnextentry)
-    }
-
-    if (stat.isSymbolicLink()) {
-      header.size = 0
-      header.type = 'symlink'
-      header = map(header) || header
-      return onsymlink(filename, header)
-    }
-
-    // TODO: add fifo etc...
-
-    header = map(header) || header
-
-    if (!stat.isFile()) {
-      if (strict) return pack.destroy(new Error('unsupported type for ' + filename))
-      return onnextentry()
-    }
-
-    var entry = pack.entry(header, onnextentry)
-    if (!entry) return
-
-    var rs = mapStream(xfs.createReadStream(path.join(cwd, filename)), header)
-
-    rs.on('error', function (err) { // always forward errors on destroy
-      entry.destroy(err)
-    })
-
-    pump(rs, entry)
-  }
-
-  var onnextentry = function (err) {
-    if (err) return pack.destroy(err)
-    statNext(onstat)
-  }
-
-  onnextentry()
-
-  return pack
-}
-
-var head = function (list) {
-  return list.length ? list[list.length - 1] : null
-}
-
-var processGetuid = function () {
-  return process.getuid ? process.getuid() : -1
-}
-
-var processUmask = function () {
-  return process.umask ? process.umask() : 0
-}
-
-exports.extract = function (cwd, opts) {
-  if (!cwd) cwd = '.'
-  if (!opts) opts = {}
-
-  var xfs = opts.fs || fs
-  var ignore = opts.ignore || opts.filter || noop
-  var map = opts.map || noop
-  var mapStream = opts.mapStream || echo
-  var own = opts.chown !== false && !win32 && processGetuid() === 0
-  var extract = opts.extract || tar.extract()
-  var stack = []
-  var now = new Date()
-  var umask = typeof opts.umask === 'number' ? ~opts.umask : ~processUmask()
-  var dmode = typeof opts.dmode === 'number' ? opts.dmode : 0
-  var fmode = typeof opts.fmode === 'number' ? opts.fmode : 0
-  var strict = opts.strict !== false
-
-  if (opts.strip) map = strip(map, opts.strip)
-
-  if (opts.readable) {
-    dmode |= parseInt(555, 8)
-    fmode |= parseInt(444, 8)
-  }
-  if (opts.writable) {
-    dmode |= parseInt(333, 8)
-    fmode |= parseInt(222, 8)
-  }
-
-  var utimesParent = function (name, cb) { // we just set the mtime on the parent dir again everytime we write an entry
-    var top
-    while ((top = head(stack)) && name.slice(0, top[0].length) !== top[0]) stack.pop()
-    if (!top) return cb()
-    xfs.utimes(top[0], now, top[1], cb)
-  }
-
-  var utimes = function (name, header, cb) {
-    if (opts.utimes === false) return cb()
-
-    if (header.type === 'directory') return xfs.utimes(name, now, header.mtime, cb)
-    if (header.type === 'symlink') return utimesParent(name, cb) // TODO: how to set mtime on link?
-
-    xfs.utimes(name, now, header.mtime, function (err) {
-      if (err) return cb(err)
-      utimesParent(name, cb)
-    })
-  }
-
-  var chperm = function (name, header, cb) {
-    var link = header.type === 'symlink'
-    var chmod = link ? xfs.lchmod : xfs.chmod
-    var chown = link ? xfs.lchown : xfs.chown
-
-    if (!chmod) return cb()
-
-    var mode = (header.mode | (header.type === 'directory' ? dmode : fmode)) & umask
-    chmod(name, mode, function (err) {
-      if (err) return cb(err)
-      if (!own) return cb()
-      if (!chown) return cb()
-      chown(name, header.uid, header.gid, cb)
-    })
-  }
-
-  extract.on('entry', function (header, stream, next) {
-    header = map(header) || header
-    header.name = normalize(header.name)
-    var name = path.join(cwd, path.join('/', header.name))
-
-    if (ignore(name, header)) {
-      stream.resume()
-      return next()
-    }
-
-    var stat = function (err) {
-      if (err) return next(err)
-      utimes(name, header, function (err) {
-        if (err) return next(err)
-        if (win32) return next()
-        chperm(name, header, next)
-      })
-    }
-
-    var onsymlink = function () {
-      if (win32) return next() // skip symlinks on win for now before it can be tested
-      xfs.unlink(name, function () {
-        xfs.symlink(header.linkname, name, stat)
-      })
-    }
-
-    var onlink = function () {
-      if (win32) return next() // skip links on win for now before it can be tested
-      xfs.unlink(name, function () {
-        var srcpath = path.join(cwd, path.join('/', header.linkname))
-
-        xfs.link(srcpath, name, function (err) {
-          if (err && err.code === 'EPERM' && opts.hardlinkAsFilesFallback) {
-            stream = xfs.createReadStream(srcpath)
-            return onfile()
-          }
-
-          stat(err)
-        })
-      })
-    }
-
-    var onfile = function () {
-      var ws = xfs.createWriteStream(name)
-      var rs = mapStream(stream, header)
-
-      ws.on('error', function (err) { // always forward errors on destroy
-        rs.destroy(err)
-      })
-
-      pump(rs, ws, function (err) {
-        if (err) return next(err)
-        ws.on('close', stat)
-      })
-    }
-
-    if (header.type === 'directory') {
-      stack.push([name, header.mtime])
-      return mkdirfix(name, {
-        fs: xfs, own: own, uid: header.uid, gid: header.gid
-      }, stat)
-    }
-
-    var dir = path.dirname(name)
-
-    validate(xfs, dir, path.join(cwd, '.'), function (err, valid) {
-      if (err) return next(err)
-      if (!valid) return next(new Error(dir + ' is not a valid path'))
-
-      mkdirfix(dir, {
-        fs: xfs, own: own, uid: header.uid, gid: header.gid
-      }, function (err) {
-        if (err) return next(err)
-
-        switch (header.type) {
-          case 'file': return onfile()
-          case 'link': return onlink()
-          case 'symlink': return onsymlink()
-        }
-
-        if (strict) return next(new Error('unsupported type for ' + name + ' (' + header.type + ')'))
-
-        stream.resume()
-        next()
-      })
-    })
-  })
-
-  if (opts.finish) extract.on('finish', opts.finish)
-
-  return extract
-}
-
-function validate (fs, name, root, cb) {
-  if (name === root) return cb(null, true)
-  fs.lstat(name, function (err, st) {
-    if (err && err.code !== 'ENOENT') return cb(err)
-    if (err || st.isDirectory()) return validate(fs, path.join(name, '..'), root, cb)
-    cb(null, false)
-  })
-}
-
-function mkdirfix (name, opts, cb) {
-  mkdirp(name, {fs: opts.fs}, function (err, made) {
-    if (!err && made && opts.own) {
-      chownr(made, opts.uid, opts.gid, cb)
-    } else {
-      cb(err)
-    }
-  })
-}
-
-
-/***/ }),
-/* 194 */
-/***/ (function(module, exports) {
-
-module.exports = {"name":"yarn","installationMethod":"unknown","version":"1.21.1","license":"BSD-2-Clause","preferGlobal":true,"description":"📦🐈 Fast, reliable, and secure dependency management.","dependencies":{"@zkochan/cmd-shim":"^3.1.0","babel-runtime":"^6.26.0","bytes":"^3.0.0","camelcase":"^4.0.0","chalk":"^2.1.0","cli-table3":"^0.4.0","commander":"^2.9.0","death":"^1.0.0","debug":"^3.0.0","deep-equal":"^1.0.1","detect-indent":"^5.0.0","dnscache":"^1.0.1","glob":"^7.1.1","gunzip-maybe":"^1.4.0","hash-for-dep":"^1.2.3","imports-loader":"^0.8.0","ini":"^1.3.4","inquirer":"^6.2.0","invariant":"^2.2.0","is-builtin-module":"^2.0.0","is-ci":"^1.0.10","is-webpack-bundle":"^1.0.0","js-yaml":"^3.13.1","leven":"^2.0.0","loud-rejection":"^1.2.0","micromatch":"^2.3.11","mkdirp":"^0.5.1","node-emoji":"^1.6.1","normalize-url":"^2.0.0","npm-logical-tree":"^1.2.1","object-path":"^0.11.2","proper-lockfile":"^2.0.0","puka":"^1.0.0","read":"^1.0.7","request":"^2.87.0","request-capture-har":"^1.2.2","rimraf":"^2.5.0","semver":"^5.1.0","ssri":"^5.3.0","strip-ansi":"^4.0.0","strip-bom":"^3.0.0","tar-fs":"^1.16.0","tar-stream":"^1.6.1","uuid":"^3.0.1","v8-compile-cache":"^2.0.0","validate-npm-package-license":"^3.0.4","yn":"^2.0.0"},"devDependencies":{"babel-core":"^6.26.0","babel-eslint":"^7.2.3","babel-loader":"^6.2.5","babel-plugin-array-includes":"^2.0.3","babel-plugin-inline-import":"^3.0.0","babel-plugin-transform-builtin-extend":"^1.1.2","babel-plugin-transform-inline-imports-commonjs":"^1.0.0","babel-plugin-transform-runtime":"^6.4.3","babel-preset-env":"^1.6.0","babel-preset-flow":"^6.23.0","babel-preset-stage-0":"^6.0.0","babylon":"^6.5.0","commitizen":"^2.9.6","cz-conventional-changelog":"^2.0.0","eslint":"^4.3.0","eslint-config-fb-strict":"^22.0.0","eslint-plugin-babel":"^5.0.0","eslint-plugin-flowtype":"^2.35.0","eslint-plugin-jasmine":"^2.6.2","eslint-plugin-jest":"^21.0.0","eslint-plugin-jsx-a11y":"^6.0.2","eslint-plugin-prefer-object-spread":"^1.2.1","eslint-plugin-prettier":"^2.1.2","eslint-plugin-react":"^7.1.0","eslint-plugin-relay":"^0.0.28","eslint-plugin-yarn-internal":"file:scripts/eslint-rules","execa":"^0.11.0","fancy-log":"^1.3.2","flow-bin":"^0.66.0","git-release-notes":"^3.0.0","gulp":"^4.0.0","gulp-babel":"^7.0.0","gulp-if":"^2.0.1","gulp-newer":"^1.0.0","gulp-plumber":"^1.0.1","gulp-sourcemaps":"^2.2.0","jest":"^22.4.4","jsinspect":"^0.12.6","minimatch":"^3.0.4","mock-stdin":"^0.3.0","prettier":"^1.5.2","string-replace-loader":"^2.1.1","temp":"^0.8.3","webpack":"^2.1.0-beta.25","yargs":"^6.3.0"},"resolutions":{"sshpk":"^1.14.2"},"engines":{"node":">=4.0.0"},"repository":"yarnpkg/yarn","bin":{"yarn":"./bin/yarn.js","yarnpkg":"./bin/yarn.js"},"scripts":{"build":"gulp build","build-bundle":"node ./scripts/build-webpack.js","build-chocolatey":"powershell ./scripts/build-chocolatey.ps1","build-deb":"./scripts/build-deb.sh","build-dist":"bash ./scripts/build-dist.sh","build-win-installer":"scripts\\build-windows-installer.bat","changelog":"git-release-notes $(git describe --tags --abbrev=0 $(git describe --tags --abbrev=0)^)..$(git describe --tags --abbrev=0) scripts/changelog.md","dupe-check":"yarn jsinspect ./src","lint":"eslint . && flow check","pkg-tests":"yarn --cwd packages/pkg-tests jest yarn.test.js","prettier":"eslint src __tests__ --fix","release-branch":"./scripts/release-branch.sh","test":"yarn lint && yarn test-only","test-only":"node --max_old_space_size=4096 node_modules/jest/bin/jest.js --verbose","test-only-debug":"node --inspect-brk --max_old_space_size=4096 node_modules/jest/bin/jest.js --runInBand --verbose","test-coverage":"node --max_old_space_size=4096 node_modules/jest/bin/jest.js --coverage --verbose","watch":"gulp watch","commit":"git-cz"},"jest":{"collectCoverageFrom":["src/**/*.js"],"testEnvironment":"node","modulePathIgnorePatterns":["__tests__/fixtures/","packages/pkg-tests/pkg-tests-fixtures","dist/"],"testPathIgnorePatterns":["__tests__/(fixtures|__mocks__)/","updates/","_(temp|mock|install|init|helpers).js$","packages/pkg-tests"]},"config":{"commitizen":{"path":"./node_modules/cz-conventional-changelog"}}}
-
-/***/ }),
-/* 195 */
-/***/ (function(module, exports) {
-
-module.exports = require("https");
-
-/***/ }),
-/* 196 */
-/***/ (function(module, exports) {
-
-module.exports = require("querystring");
-
-/***/ }),
-/* 197 */
-/***/ (function(module, exports) {
-
-module.exports = require("readline");
-
-/***/ }),
-/* 198 */
-/***/ (function(module, exports) {
-
-module.exports = require("zlib");
-
-/***/ }),
-/* 199 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = stringify;
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _package;
-
-function _load_package() {
-  return _package = __webpack_require__(194);
-}
-
-const NODE_VERSION = process.version;
-
-function shouldWrapKey(str) {
-  return str.indexOf('true') === 0 || str.indexOf('false') === 0 || /[:\s\n\\",\[\]]/g.test(str) || /^[0-9]/g.test(str) || !/^[a-zA-Z]/g.test(str);
-}
-
-function maybeWrap(str) {
-  if (typeof str === 'boolean' || typeof str === 'number' || shouldWrapKey(str)) {
-    return JSON.stringify(str);
-  } else {
-    return str;
-  }
-}
-
-const priorities = {
-  name: 1,
-  version: 2,
-  uid: 3,
-  resolved: 4,
-  integrity: 5,
-  registry: 6,
-  dependencies: 7
-};
-
-function priorityThenAlphaSort(a, b) {
-  if (priorities[a] || priorities[b]) {
-    return (priorities[a] || 100) > (priorities[b] || 100) ? 1 : -1;
-  } else {
-    return (0, (_misc || _load_misc()).sortAlpha)(a, b);
-  }
-}
-
-function _stringify(obj, options) {
-  if (typeof obj !== 'object') {
-    throw new TypeError();
-  }
-
-  const indent = options.indent;
-  const lines = [];
-
-  // Sorting order needs to be consistent between runs, we run native sort by name because there are no
-  // problems with it being unstable because there are no to keys the same
-  // However priorities can be duplicated and native sort can shuffle things from run to run
-  const keys = Object.keys(obj).sort(priorityThenAlphaSort);
-
-  let addedKeys = [];
-
-  for (let i = 0; i < keys.length; i++) {
-    const key = keys[i];
-    const val = obj[key];
-    if (val == null || addedKeys.indexOf(key) >= 0) {
-      continue;
-    }
-
-    const valKeys = [key];
-
-    // get all keys that have the same value equality, we only want this for objects
-    if (typeof val === 'object') {
-      for (let j = i + 1; j < keys.length; j++) {
-        const key = keys[j];
-        if (val === obj[key]) {
-          valKeys.push(key);
-        }
-      }
-    }
-
-    const keyLine = valKeys.sort((_misc || _load_misc()).sortAlpha).map(maybeWrap).join(', ');
-
-    if (typeof val === 'string' || typeof val === 'boolean' || typeof val === 'number') {
-      lines.push(`${keyLine} ${maybeWrap(val)}`);
-    } else if (typeof val === 'object') {
-      lines.push(`${keyLine}:\n${_stringify(val, { indent: indent + '  ' })}` + (options.topLevel ? '\n' : ''));
-    } else {
-      throw new TypeError();
-    }
-
-    addedKeys = addedKeys.concat(valKeys);
-  }
-
-  return indent + lines.join(`\n${indent}`);
-}
-
-function stringify(obj, noHeader, enableVersions) {
-  const val = _stringify(obj, {
-    indent: '',
-    topLevel: true
-  });
-  if (noHeader) {
-    return val;
-  }
-
-  const lines = [];
-  lines.push('# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.');
-  lines.push(`# yarn lockfile v${(_constants || _load_constants()).LOCKFILE_VERSION}`);
-  if (enableVersions) {
-    lines.push(`# yarn v${(_package || _load_package()).version}`);
-    lines.push(`# node ${NODE_VERSION}`);
-  }
-  lines.push('\n');
-  lines.push(val);
-
-  return lines.join('\n');
-}
-
-/***/ }),
-/* 200 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _consoleReporter;
-
-function _load_consoleReporter() {
-  return _consoleReporter = __webpack_require__(561);
-}
-
-Object.defineProperty(exports, 'ConsoleReporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_consoleReporter || _load_consoleReporter()).default;
-  }
-});
-
-var _bufferReporter;
-
-function _load_bufferReporter() {
-  return _bufferReporter = __webpack_require__(560);
-}
-
-Object.defineProperty(exports, 'BufferReporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_bufferReporter || _load_bufferReporter()).default;
-  }
-});
-
-var _eventReporter;
-
-function _load_eventReporter() {
-  return _eventReporter = __webpack_require__(565);
-}
-
-Object.defineProperty(exports, 'EventReporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_eventReporter || _load_eventReporter()).default;
-  }
-});
-
-var _jsonReporter;
-
-function _load_jsonReporter() {
-  return _jsonReporter = __webpack_require__(213);
-}
-
-Object.defineProperty(exports, 'JSONReporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_jsonReporter || _load_jsonReporter()).default;
-  }
-});
-
-var _noopReporter;
-
-function _load_noopReporter() {
-  return _noopReporter = __webpack_require__(569);
-}
-
-Object.defineProperty(exports, 'NoopReporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_noopReporter || _load_noopReporter()).default;
-  }
-});
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = __webpack_require__(108);
-}
-
-Object.defineProperty(exports, 'Reporter', {
-  enumerable: true,
-  get: function get() {
-    return _interopRequireDefault(_baseReporter || _load_baseReporter()).default;
-  }
-});
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/***/ }),
-/* 201 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-// On windows, create a .cmd file.
-// Read the #! in the file to see what it uses.  The vast majority
-// of the time, this will be either:
-// "#!/usr/bin/env <prog> <args...>"
-// or:
-// "#!<prog> <args...>"
-//
-// Write a binroot/pkg.bin + ".cmd" file that has this line in it:
-// @<prog> <args...> %~dp0<target> %*
-
-module.exports = cmdShim
-cmdShim.ifExists = cmdShimIfExists
-
-const fs = __webpack_require__(762)
-
-const mkdir = __webpack_require__(761)
-const path = __webpack_require__(0)
-const isWindows = __webpack_require__(743)
-const shebangExpr = /^#!\s*(?:\/usr\/bin\/env)?\s*([^ \t]+)(.*)$/
-const DEFAULT_OPTIONS = {
-  // Create PowerShell file by default if the option hasn't been specified
-  createPwshFile: true,
-  createCmdFile: isWindows()
-}
-
-function cmdShimIfExists (src, to, opts) {
-  opts = Object.assign({}, DEFAULT_OPTIONS, opts)
-  return fs.stat(src)
-    .then(() => cmdShim(src, to, opts))
-    .catch(() => {})
-}
-
-// Try to unlink, but ignore errors.
-// Any problems will surface later.
-function rm (path) {
-  return fs.unlink(path).catch(() => {})
-}
-
-function cmdShim (src, to, opts) {
-  opts = Object.assign({}, DEFAULT_OPTIONS, opts)
-  return fs.stat(src)
-    .then(() => cmdShim_(src, to, opts))
-}
-
-function cmdShim_ (src, to, opts) {
-  return Promise.all([
-    rm(to),
-    rm(`${to}.ps1`),
-    opts.createCmdFile && rm(`${to}.cmd`)
-  ])
-    .then(() => writeShim(src, to, opts))
-}
-
-function writeShim (src, to, opts) {
-  opts = Object.assign({}, DEFAULT_OPTIONS, opts)
-  const defaultArgs = opts.preserveSymlinks ? '--preserve-symlinks' : ''
-  // make a cmd file and a sh script
-  // First, check if the bin is a #! of some sort.
-  // If not, then assume it's something that'll be compiled, or some other
-  // sort of script, and just call it directly.
-  return mkdir(path.dirname(to))
-    .then(() => {
-      return fs.readFile(src, 'utf8')
-        .then(data => {
-          const firstLine = data.trim().split(/\r*\n/)[0]
-          const shebang = firstLine.match(shebangExpr)
-          if (!shebang) return writeShim_(src, to, Object.assign({}, opts, {args: defaultArgs}))
-          const prog = shebang[1]
-          const args = (shebang[2] && ((defaultArgs && (shebang[2] + ' ' + defaultArgs)) || shebang[2])) || defaultArgs
-          return writeShim_(src, to, Object.assign({}, opts, {prog, args}))
-        })
-        .catch(() => writeShim_(src, to, Object.assign({}, opts, {args: defaultArgs})))
-    })
-}
-
-function writeShim_ (src, to, opts) {
-  opts = Object.assign({}, DEFAULT_OPTIONS, opts)
-  let shTarget = path.relative(path.dirname(to), src)
-  let target = shTarget.split('/').join('\\')
-  let longProg
-  let prog = opts.prog
-  let shProg = prog && prog.split('\\').join('/')
-  let shLongProg
-  let pwshProg = shProg && `"${shProg}$exe"`
-  let pwshLongProg
-  shTarget = shTarget.split('\\').join('/')
-  let args = opts.args || ''
-  let {
-    win32: nodePath,
-    posix: shNodePath
-  } = normalizePathEnvVar(opts.nodePath)
-  if (!prog) {
-    prog = `"%~dp0\\${target}"`
-    shProg = `"$basedir/${shTarget}"`
-    pwshProg = shProg
-    args = ''
-    target = ''
-    shTarget = ''
-  } else {
-    longProg = `"%~dp0\\${prog}.exe"`
-    shLongProg = '"$basedir/' + prog + '"'
-    pwshLongProg = `"$basedir/${prog}$exe"`
-    target = `"%~dp0\\${target}"`
-    shTarget = `"$basedir/${shTarget}"`
-  }
-
-  let cmd
-  if (opts.createCmdFile) {
-    // @IF EXIST "%~dp0\node.exe" (
-    //   "%~dp0\node.exe" "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
-    // ) ELSE (
-    //   SETLOCAL
-    //   SET PATHEXT=%PATHEXT:;.JS;=;%
-    //   node "%~dp0\.\node_modules\npm\bin\npm-cli.js" %*
-    // )
-    cmd = nodePath ? `@SET NODE_PATH=${nodePath}\r\n` : ''
-    if (longProg) {
-      cmd += '@IF EXIST ' + longProg + ' (\r\n' +
-        '  ' + longProg + ' ' + args + ' ' + target + ' %*\r\n' +
-        ') ELSE (\r\n' +
-        '  @SETLOCAL\r\n' +
-        '  @SET PATHEXT=%PATHEXT:;.JS;=;%\r\n' +
-        '  ' + prog + ' ' + args + ' ' + target + ' %*\r\n' +
-        ')'
-    } else {
-      cmd += `@${prog} ${args} ${target} %*\r\n`
-    }
-  }
-
-  // #!/bin/sh
-  // basedir=`dirname "$0"`
-  //
-  // case `uname` in
-  //     *CYGWIN*) basedir=`cygpath -w "$basedir"`;;
-  // esac
-  //
-  // if [ -x "$basedir/node.exe" ]; then
-  //   "$basedir/node.exe" "$basedir/node_modules/npm/bin/npm-cli.js" "$@"
-  //   ret=$?
-  // else
-  //   node "$basedir/node_modules/npm/bin/npm-cli.js" "$@"
-  //   ret=$?
-  // fi
-  // exit $ret
-
-  let sh = '#!/bin/sh\n'
-  sh = sh +
-    "basedir=$(dirname \"$(echo \"$0\" | sed -e 's,\\\\,/,g')\")\n" +
-    '\n' +
-    'case `uname` in\n' +
-    '    *CYGWIN*) basedir=`cygpath -w "$basedir"`;;\n' +
-    'esac\n' +
-    '\n'
-  const env = opts.nodePath ? `NODE_PATH="${shNodePath}" ` : ''
-
-  if (shLongProg) {
-    sh = sh +
-      'if [ -x ' + shLongProg + ' ]; then\n' +
-      '  ' + env + shLongProg + ' ' + args + ' ' + shTarget + ' "$@"\n' +
-      '  ret=$?\n' +
-      'else \n' +
-      '  ' + env + shProg + ' ' + args + ' ' + shTarget + ' "$@"\n' +
-      '  ret=$?\n' +
-      'fi\n' +
-      'exit $ret\n'
-  } else {
-    sh = sh + env + shProg + ' ' + args + ' ' + shTarget + ' "$@"\n' +
-      'exit $?\n'
-  }
-
-  // #!/usr/bin/env pwsh
-  // $basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent
-  //
-  // $ret=0
-  // $exe = ""
-  // if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {
-  //   # Fix case when both the Windows and Linux builds of Node
-  //   # are installed in the same directory
-  //   $exe = ".exe"
-  // }
-  // if (Test-Path "$basedir/node") {
-  //   & "$basedir/node$exe" "$basedir/node_modules/npm/bin/npm-cli.js" $args
-  //   $ret=$LASTEXITCODE
-  // } else {
-  //   & "node$exe" "$basedir/node_modules/npm/bin/npm-cli.js" $args
-  //   $ret=$LASTEXITCODE
-  // }
-  // exit $ret
-  let pwsh = '#!/usr/bin/env pwsh\n' +
-    '$basedir=Split-Path $MyInvocation.MyCommand.Definition -Parent\n' +
-    '\n' +
-    '$exe=""\n' +
-    (opts.nodePath ? '$env_node_path=$env:NODE_PATH\n' +
-      `$env:NODE_PATH="${nodePath}"\n` : '') +
-    'if ($PSVersionTable.PSVersion -lt "6.0" -or $IsWindows) {\n' +
-    '  # Fix case when both the Windows and Linux builds of Node\n' +
-    '  # are installed in the same directory\n' +
-    '  $exe=".exe"\n' +
-    '}'
-  if (opts.nodePath) {
-    pwsh = pwsh +
-      ' else {\n' +
-      `  $env:NODE_PATH="${shNodePath}"\n` +
-      '}'
-  }
-  pwsh += '\n'
-  if (shLongProg) {
-    pwsh = pwsh +
-      '$ret=0\n' +
-      `if (Test-Path ${pwshLongProg}) {\n` +
-      `  & ${pwshLongProg} ${args} ${shTarget} $args\n` +
-      '  $ret=$LASTEXITCODE\n' +
-      '} else {\n' +
-      `  & ${pwshProg} ${args} ${shTarget} $args\n` +
-      '  $ret=$LASTEXITCODE\n' +
-      '}\n' +
-      (opts.nodePath ? '$env:NODE_PATH=$env_node_path\n' : '') +
-      'exit $ret\n'
-  } else {
-    pwsh = pwsh +
-      `& ${pwshProg} ${args} ${shTarget} $args\n` +
-      (opts.nodePath ? '$env:NODE_PATH=$env_node_path\n' : '') +
-      'exit $LASTEXITCODE\n'
-  }
-
-  return Promise.all([
-    opts.createCmdFile && fs.writeFile(to + '.cmd', cmd, 'utf8'),
-    opts.createPwshFile && fs.writeFile(`${to}.ps1`, pwsh, 'utf8'),
-    fs.writeFile(to, sh, 'utf8')
-  ])
-    .then(() => chmodShim(to, opts))
-}
-
-function chmodShim (to, {createCmdFile, createPwshFile}) {
-  return Promise.all([
-    fs.chmod(to, 0o755),
-    createPwshFile && fs.chmod(`${to}.ps1`, 0o755),
-    createCmdFile && fs.chmod(`${to}.cmd`, 0o755)
-  ])
-}
-
-/**
- * @param {string|string[]} nodePath
- * @returns {{win32:string,posix:string}}
- */
-function normalizePathEnvVar (nodePath) {
-  if (!nodePath) {
-    return {
-      win32: nodePath,
-      posix: nodePath
-    }
-  }
-  let split = (typeof nodePath === 'string' ? nodePath.split(path.delimiter) : Array.from(nodePath))
-  let result = {}
-  for (let i = 0; i < split.length; i++) {
-    const win32 = split[i].split('/').join('\\')
-    const posix = isWindows() ? split[i].split('\\').join('/').replace(/^([^:\\/]*):/, (_, $1) => `/mnt/${$1.toLowerCase()}`) : split[i]
-
-    result.win32 = result.win32 ? `${result.win32};${win32}` : win32
-    result.posix = result.posix ? `${result.posix}:${posix}` : posix
-
-    result[i] = {win32, posix}
-  }
-  return result
-}
-
-
-/***/ }),
-/* 202 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var resolve = __webpack_require__(203);
-
-module.exports = {
-  Validation: errorSubclass(ValidationError),
-  MissingRef: errorSubclass(MissingRefError)
-};
-
-
-function ValidationError(errors) {
-  this.message = 'validation failed';
-  this.errors = errors;
-  this.ajv = this.validation = true;
-}
-
-
-MissingRefError.message = function (baseId, ref) {
-  return 'can\'t resolve reference ' + ref + ' from id ' + baseId;
-};
-
-
-function MissingRefError(baseId, ref, message) {
-  this.message = message || MissingRefError.message(baseId, ref);
-  this.missingRef = resolve.url(baseId, ref);
-  this.missingSchema = resolve.normalizeId(resolve.fullPath(this.missingRef));
-}
-
-
-function errorSubclass(Subclass) {
-  Subclass.prototype = Object.create(Error.prototype);
-  Subclass.prototype.constructor = Subclass;
-  return Subclass;
-}
-
-
-/***/ }),
-/* 203 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var url = __webpack_require__(24)
-  , equal = __webpack_require__(204)
-  , util = __webpack_require__(106)
-  , SchemaObject = __webpack_require__(339)
-  , traverse = __webpack_require__(503);
-
-module.exports = resolve;
-
-resolve.normalizeId = normalizeId;
-resolve.fullPath = getFullPath;
-resolve.url = resolveUrl;
-resolve.ids = resolveIds;
-resolve.inlineRef = inlineRef;
-resolve.schema = resolveSchema;
-
-/**
- * [resolve and compile the references ($ref)]
- * @this   Ajv
- * @param  {Function} compile reference to schema compilation funciton (localCompile)
- * @param  {Object} root object with information about the root schema for the current schema
- * @param  {String} ref reference to resolve
- * @return {Object|Function} schema object (if the schema can be inlined) or validation function
- */
-function resolve(compile, root, ref) {
-  /* jshint validthis: true */
-  var refVal = this._refs[ref];
-  if (typeof refVal == 'string') {
-    if (this._refs[refVal]) refVal = this._refs[refVal];
-    else return resolve.call(this, compile, root, refVal);
-  }
-
-  refVal = refVal || this._schemas[ref];
-  if (refVal instanceof SchemaObject) {
-    return inlineRef(refVal.schema, this._opts.inlineRefs)
-            ? refVal.schema
-            : refVal.validate || this._compile(refVal);
-  }
-
-  var res = resolveSchema.call(this, root, ref);
-  var schema, v, baseId;
-  if (res) {
-    schema = res.schema;
-    root = res.root;
-    baseId = res.baseId;
-  }
-
-  if (schema instanceof SchemaObject) {
-    v = schema.validate || compile.call(this, schema.schema, root, undefined, baseId);
-  } else if (schema !== undefined) {
-    v = inlineRef(schema, this._opts.inlineRefs)
-        ? schema
-        : compile.call(this, schema, root, undefined, baseId);
-  }
-
-  return v;
-}
-
-
-/**
- * Resolve schema, its root and baseId
- * @this Ajv
- * @param  {Object} root root object with properties schema, refVal, refs
- * @param  {String} ref  reference to resolve
- * @return {Object} object with properties schema, root, baseId
- */
-function resolveSchema(root, ref) {
-  /* jshint validthis: true */
-  var p = url.parse(ref, false, true)
-    , refPath = _getFullPath(p)
-    , baseId = getFullPath(this._getId(root.schema));
-  if (refPath !== baseId) {
-    var id = normalizeId(refPath);
-    var refVal = this._refs[id];
-    if (typeof refVal == 'string') {
-      return resolveRecursive.call(this, root, refVal, p);
-    } else if (refVal instanceof SchemaObject) {
-      if (!refVal.validate) this._compile(refVal);
-      root = refVal;
-    } else {
-      refVal = this._schemas[id];
-      if (refVal instanceof SchemaObject) {
-        if (!refVal.validate) this._compile(refVal);
-        if (id == normalizeId(ref))
-          return { schema: refVal, root: root, baseId: baseId };
-        root = refVal;
-      } else {
-        return;
-      }
-    }
-    if (!root.schema) return;
-    baseId = getFullPath(this._getId(root.schema));
-  }
-  return getJsonPointer.call(this, p, baseId, root.schema, root);
-}
-
-
-/* @this Ajv */
-function resolveRecursive(root, ref, parsedRef) {
-  /* jshint validthis: true */
-  var res = resolveSchema.call(this, root, ref);
-  if (res) {
-    var schema = res.schema;
-    var baseId = res.baseId;
-    root = res.root;
-    var id = this._getId(schema);
-    if (id) baseId = resolveUrl(baseId, id);
-    return getJsonPointer.call(this, parsedRef, baseId, schema, root);
-  }
-}
-
-
-var PREVENT_SCOPE_CHANGE = util.toHash(['properties', 'patternProperties', 'enum', 'dependencies', 'definitions']);
-/* @this Ajv */
-function getJsonPointer(parsedRef, baseId, schema, root) {
-  /* jshint validthis: true */
-  parsedRef.hash = parsedRef.hash || '';
-  if (parsedRef.hash.slice(0,2) != '#/') return;
-  var parts = parsedRef.hash.split('/');
-
-  for (var i = 1; i < parts.length; i++) {
-    var part = parts[i];
-    if (part) {
-      part = util.unescapeFragment(part);
-      schema = schema[part];
-      if (schema === undefined) break;
-      var id;
-      if (!PREVENT_SCOPE_CHANGE[part]) {
-        id = this._getId(schema);
-        if (id) baseId = resolveUrl(baseId, id);
-        if (schema.$ref) {
-          var $ref = resolveUrl(baseId, schema.$ref);
-          var res = resolveSchema.call(this, root, $ref);
-          if (res) {
-            schema = res.schema;
-            root = res.root;
-            baseId = res.baseId;
-          }
-        }
-      }
-    }
-  }
-  if (schema !== undefined && schema !== root.schema)
-    return { schema: schema, root: root, baseId: baseId };
-}
-
-
-var SIMPLE_INLINED = util.toHash([
-  'type', 'format', 'pattern',
-  'maxLength', 'minLength',
-  'maxProperties', 'minProperties',
-  'maxItems', 'minItems',
-  'maximum', 'minimum',
-  'uniqueItems', 'multipleOf',
-  'required', 'enum'
-]);
-function inlineRef(schema, limit) {
-  if (limit === false) return false;
-  if (limit === undefined || limit === true) return checkNoRef(schema);
-  else if (limit) return countKeys(schema) <= limit;
-}
-
-
-function checkNoRef(schema) {
-  var item;
-  if (Array.isArray(schema)) {
-    for (var i=0; i<schema.length; i++) {
-      item = schema[i];
-      if (typeof item == 'object' && !checkNoRef(item)) return false;
-    }
-  } else {
-    for (var key in schema) {
-      if (key == '$ref') return false;
-      item = schema[key];
-      if (typeof item == 'object' && !checkNoRef(item)) return false;
-    }
-  }
-  return true;
-}
-
-
-function countKeys(schema) {
-  var count = 0, item;
-  if (Array.isArray(schema)) {
-    for (var i=0; i<schema.length; i++) {
-      item = schema[i];
-      if (typeof item == 'object') count += countKeys(item);
-      if (count == Infinity) return Infinity;
-    }
-  } else {
-    for (var key in schema) {
-      if (key == '$ref') return Infinity;
-      if (SIMPLE_INLINED[key]) {
-        count++;
-      } else {
-        item = schema[key];
-        if (typeof item == 'object') count += countKeys(item) + 1;
-        if (count == Infinity) return Infinity;
-      }
-    }
-  }
-  return count;
-}
-
-
-function getFullPath(id, normalize) {
-  if (normalize !== false) id = normalizeId(id);
-  var p = url.parse(id, false, true);
-  return _getFullPath(p);
-}
-
-
-function _getFullPath(p) {
-  var protocolSeparator = p.protocol || p.href.slice(0,2) == '//' ? '//' : '';
-  return (p.protocol||'') + protocolSeparator + (p.host||'') + (p.path||'')  + '#';
-}
-
-
-var TRAILING_SLASH_HASH = /#\/?$/;
-function normalizeId(id) {
-  return id ? id.replace(TRAILING_SLASH_HASH, '') : '';
-}
-
-
-function resolveUrl(baseId, id) {
-  id = normalizeId(id);
-  return url.resolve(baseId, id);
-}
-
-
-/* @this Ajv */
-function resolveIds(schema) {
-  var schemaId = normalizeId(this._getId(schema));
-  var baseIds = {'': schemaId};
-  var fullPaths = {'': getFullPath(schemaId, false)};
-  var localRefs = {};
-  var self = this;
-
-  traverse(schema, {allKeys: true}, function(sch, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex) {
-    if (jsonPtr === '') return;
-    var id = self._getId(sch);
-    var baseId = baseIds[parentJsonPtr];
-    var fullPath = fullPaths[parentJsonPtr] + '/' + parentKeyword;
-    if (keyIndex !== undefined)
-      fullPath += '/' + (typeof keyIndex == 'number' ? keyIndex : util.escapeFragment(keyIndex));
-
-    if (typeof id == 'string') {
-      id = baseId = normalizeId(baseId ? url.resolve(baseId, id) : id);
-
-      var refVal = self._refs[id];
-      if (typeof refVal == 'string') refVal = self._refs[refVal];
-      if (refVal && refVal.schema) {
-        if (!equal(sch, refVal.schema))
-          throw new Error('id "' + id + '" resolves to more than one schema');
-      } else if (id != normalizeId(fullPath)) {
-        if (id[0] == '#') {
-          if (localRefs[id] && !equal(sch, localRefs[id]))
-            throw new Error('id "' + id + '" resolves to more than one schema');
-          localRefs[id] = sch;
-        } else {
-          self._refs[id] = fullPath;
-        }
-      }
-    }
-    baseIds[jsonPtr] = baseId;
-    fullPaths[jsonPtr] = fullPath;
-  });
-
-  return localRefs;
-}
-
-
-/***/ }),
-/* 204 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var isArray = Array.isArray;
-var keyList = Object.keys;
-var hasProp = Object.prototype.hasOwnProperty;
-
-module.exports = function equal(a, b) {
-  if (a === b) return true;
-
-  var arrA = isArray(a)
-    , arrB = isArray(b)
-    , i
-    , length
-    , key;
-
-  if (arrA && arrB) {
-    length = a.length;
-    if (length != b.length) return false;
-    for (i = 0; i < length; i++)
-      if (!equal(a[i], b[i])) return false;
-    return true;
-  }
-
-  if (arrA != arrB) return false;
-
-  var dateA = a instanceof Date
-    , dateB = b instanceof Date;
-  if (dateA != dateB) return false;
-  if (dateA && dateB) return a.getTime() == b.getTime();
-
-  var regexpA = a instanceof RegExp
-    , regexpB = b instanceof RegExp;
-  if (regexpA != regexpB) return false;
-  if (regexpA && regexpB) return a.toString() == b.toString();
-
-  if (a instanceof Object && b instanceof Object) {
-    var keys = keyList(a);
-    length = keys.length;
-
-    if (length !== keyList(b).length)
-      return false;
-
-    for (i = 0; i < length; i++)
-      if (!hasProp.call(b, keys[i])) return false;
-
-    for (i = 0; i < length; i++) {
-      key = keys[i];
-      if (!equal(a[key], b[key])) return false;
-    }
-
-    return true;
-  }
-
-  return false;
-};
-
-
-/***/ }),
-/* 205 */
-/***/ (function(module, exports) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-
-module.exports = {
-
-  newInvalidAsn1Error: function (msg) {
-    var e = new Error();
-    e.name = 'InvalidAsn1Error';
-    e.message = msg || '';
-    return e;
-  }
-
-};
-
-
-/***/ }),
-/* 206 */
-/***/ (function(module, exports) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-
-module.exports = {
-  EOC: 0,
-  Boolean: 1,
-  Integer: 2,
-  BitString: 3,
-  OctetString: 4,
-  Null: 5,
-  OID: 6,
-  ObjectDescriptor: 7,
-  External: 8,
-  Real: 9, // float
-  Enumeration: 10,
-  PDV: 11,
-  Utf8String: 12,
-  RelativeOID: 13,
-  Sequence: 16,
-  Set: 17,
-  NumericString: 18,
-  PrintableString: 19,
-  T61String: 20,
-  VideotexString: 21,
-  IA5String: 22,
-  UTCTime: 23,
-  GeneralizedTime: 24,
-  GraphicString: 25,
-  VisibleString: 26,
-  GeneralString: 28,
-  UniversalString: 29,
-  CharacterString: 30,
-  BMPString: 31,
-  Constructor: 32,
-  Context: 128
-};
-
-
-/***/ }),
-/* 207 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getOutdated = exports.run = exports.requireLockfile = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let addArgs = [];
-    const upgradeAll = args.length === 0 && typeof flags.scope === 'undefined' && typeof flags.pattern === 'undefined';
-    const addFlags = Object.assign({}, flags, {
-      force: true,
-      ignoreWorkspaceRootCheck: true,
-      workspaceRootIsCwd: config.cwd === config.lockfileFolder
-    });
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-    const deps = yield getOutdated(config, reporter, flags, lockfile, args);
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-    var _ref2 = yield install.fetchRequestFromCwd();
-
-    const packagePatterns = _ref2.requests;
-
-
-    setUserRequestedPackageVersions(deps, args, flags.latest, packagePatterns, reporter);
-    cleanLockfile(lockfile, deps, packagePatterns, reporter);
-    addArgs = deps.map(function (dep) {
-      return dep.upgradeTo;
-    });
-
-    if (flags.scope && validScopeRegex.test(flags.scope)) {
-      addArgs = addArgs.filter(function (depName) {
-        return depName.startsWith(flags.scope);
-      });
-    }
-
-    const add = new (_add || _load_add()).Add(addArgs, addFlags, config, reporter, upgradeAll ? new (_lockfile || _load_lockfile()).default() : lockfile);
-    yield add.init();
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let getOutdated = exports.getOutdated = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, lockfile, patterns) {
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-    const outdatedFieldName = flags.latest ? 'latest' : 'wanted';
-
-    // ensure scope is of the form `@scope/`
-    const normalizeScope = function normalizeScope() {
-      if (flags.scope) {
-        if (!flags.scope.startsWith('@')) {
-          flags.scope = '@' + flags.scope;
-        }
-
-        if (!flags.scope.endsWith('/')) {
-          flags.scope += '/';
-        }
-      }
-    };
-
-    const versionFilter = function versionFilter(dep) {
-      return dep.current !== dep[outdatedFieldName];
-    };
-
-    if (!flags.latest) {
-      // these flags only have an affect when --latest is used
-      flags.tilde = false;
-      flags.exact = false;
-      flags.caret = false;
-    }
-
-    normalizeScope();
-
-    const deps = (yield (_packageRequest || _load_packageRequest()).default.getOutdatedPackages(lockfile, install, config, reporter, patterns, flags)).filter(versionFilter).filter(scopeFilter.bind(this, flags));
-    deps.forEach(function (dep) {
-      dep.upgradeTo = buildPatternToUpgradeTo(dep, flags);
-      reporter.verbose(reporter.lang('verboseUpgradeBecauseOutdated', dep.name, dep.upgradeTo));
-    });
-
-    return deps;
-  });
-
-  return function getOutdated(_x5, _x6, _x7, _x8, _x9) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-exports.cleanLockfile = cleanLockfile;
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _add;
-
-function _load_add() {
-  return _add = __webpack_require__(165);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _packageRequest;
-
-function _load_packageRequest() {
-  return _packageRequest = _interopRequireDefault(__webpack_require__(122));
-}
-
-var _normalizePattern;
-
-function _load_normalizePattern() {
-  return _normalizePattern = __webpack_require__(37);
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-// used to detect whether a semver range is simple enough to preserve when doing a --latest upgrade.
-// when not matched, the upgraded version range will default to `^` the same as the `add` command would.
-const basicSemverOperatorRegex = new RegExp('^(\\^|~|>=|<=)?[^ |&,]+$');
-
-// used to detect if a passed parameter is a scope or a package name.
-
-
-const validScopeRegex = /^@[a-zA-Z0-9-][a-zA-Z0-9_.-]*\/$/;
-
-// If specific versions were requested for packages, override what getOutdated reported as the latest to install
-// Also add ones that are missing, since the requested packages may not have been outdated at all.
-function setUserRequestedPackageVersions(deps, args, latest, packagePatterns, reporter) {
-  args.forEach(requestedPattern => {
-    let found = false;
-    let normalized = (0, (_normalizePattern || _load_normalizePattern()).normalizePattern)(requestedPattern);
-
-    // if the user specified a package name without a version range, then that implies "latest"
-    // but if the latest flag is not passed then we need to use the version range from package.json
-    if (!normalized.hasVersion && !latest) {
-      packagePatterns.forEach(packagePattern => {
-        const packageNormalized = (0, (_normalizePattern || _load_normalizePattern()).normalizePattern)(packagePattern.pattern);
-        if (packageNormalized.name === normalized.name) {
-          normalized = packageNormalized;
-        }
-      });
-    }
-
-    const newPattern = `${normalized.name}@${normalized.range}`;
-
-    // if this dependency is already in the outdated list,
-    // just update the upgradeTo to whatever version the user requested.
-    deps.forEach(dep => {
-      if (normalized.hasVersion && dep.name === normalized.name) {
-        found = true;
-        dep.upgradeTo = newPattern;
-        reporter.verbose(reporter.lang('verboseUpgradeBecauseRequested', requestedPattern, newPattern));
-      }
-    });
-
-    // if this dependency was not in the outdated list,
-    // then add a new entry
-    if (normalized.hasVersion && !found) {
-      deps.push({
-        name: normalized.name,
-        wanted: '',
-        latest: '',
-        url: '',
-        hint: '',
-        range: '',
-        current: '',
-        upgradeTo: newPattern,
-        workspaceName: '',
-        workspaceLoc: ''
-      });
-      reporter.verbose(reporter.lang('verboseUpgradeBecauseRequested', requestedPattern, newPattern));
-    }
-  });
-}
-
-// this function attempts to determine the range operator on the semver range.
-// this will only handle the simple cases of a semver starting with '^', '~', '>=', '<=', or an exact version.
-// "exotic" semver ranges will not be handled.
-function getRangeOperator(version) {
-  const result = basicSemverOperatorRegex.exec(version);
-  return result ? result[1] || '' : '^';
-}
-
-// Attempt to preserve the range operator from the package.json specified semver range.
-// If an explicit operator was specified using --exact, --tilde, --caret, then that will take precedence.
-function buildPatternToUpgradeTo(dep, flags) {
-  if (dep.latest === 'exotic') {
-    return `${dep.name}@${dep.url}`;
-  }
-
-  const toLatest = flags.latest;
-  const toVersion = toLatest ? dep.latest : dep.range;
-  let rangeOperator = '';
-
-  if (toLatest) {
-    if (flags.caret) {
-      rangeOperator = '^';
-    } else if (flags.tilde) {
-      rangeOperator = '~';
-    } else if (flags.exact) {
-      rangeOperator = '';
-    } else {
-      rangeOperator = getRangeOperator(dep.range);
-    }
-  }
-
-  return `${dep.name}@${rangeOperator}${toVersion}`;
-}
-
-function scopeFilter(flags, dep) {
-  if (validScopeRegex.test(flags.scope)) {
-    return dep.name.startsWith(flags.scope);
-  }
-  return true;
-}
-
-// Remove deps being upgraded from the lockfile, or else Add will use the already-installed version
-// instead of the latest for the range.
-// We do this recursively so that when Yarn installs the potentially updated transitive deps,
-// it may upgrade them too instead of just using the "locked" version from the lockfile.
-// Transitive dependencies that are also a direct dependency are skipped.
-function cleanLockfile(lockfile, deps, packagePatterns, reporter) {
-  function cleanDepFromLockfile(pattern, depth) {
-    const lockManifest = lockfile.getLocked(pattern);
-    if (!lockManifest || depth > 1 && packagePatterns.some(packagePattern => packagePattern.pattern === pattern)) {
-      reporter.verbose(reporter.lang('verboseUpgradeNotUnlocking', pattern));
-      return;
-    }
-
-    const dependencies = Object.assign({}, lockManifest.dependencies || {}, lockManifest.optionalDependencies || {});
-    const depPatterns = Object.keys(dependencies).map(key => `${key}@${dependencies[key]}`);
-    reporter.verbose(reporter.lang('verboseUpgradeUnlocking', pattern));
-    lockfile.removePattern(pattern);
-    depPatterns.forEach(pattern => cleanDepFromLockfile(pattern, depth + 1));
-  }
-
-  const patterns = deps.map(dep => dep.upgradeTo);
-  patterns.forEach(pattern => cleanDepFromLockfile(pattern, 1));
-}
-
-function setFlags(commander) {
-  commander.description('Upgrades packages to their latest version based on the specified range.');
-  commander.usage('upgrade [flags]');
-  commander.option('-S, --scope <scope>', 'upgrade packages under the specified scope');
-  commander.option('-L, --latest', 'list the latest version of packages, ignoring version ranges in package.json');
-  commander.option('-E, --exact', 'install exact version. Only used when --latest is specified.');
-  commander.option('-P, --pattern [pattern]', 'upgrade packages that match pattern');
-  commander.option('-T, --tilde', 'install most recent release with the same minor version. Only used when --latest is specified.');
-  commander.option('-C, --caret', 'install most recent release with the same major version. Only used when --latest is specified.');
-  commander.option('-A, --audit', 'Run vulnerability audit on installed packages');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-const requireLockfile = exports.requireLockfile = true;
-
-/***/ }),
-/* 208 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.integrityErrors = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _packageNameUtils;
-
-function _load_packageNameUtils() {
-  return _packageNameUtils = __webpack_require__(222);
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const path = __webpack_require__(0);
-
-const integrityErrors = exports.integrityErrors = {
-  EXPECTED_IS_NOT_A_JSON: 'integrityFailedExpectedIsNotAJSON',
-  FILES_MISSING: 'integrityFailedFilesMissing',
-  LOCKFILE_DONT_MATCH: 'integrityLockfilesDontMatch',
-  FLAGS_DONT_MATCH: 'integrityFlagsDontMatch',
-  LINKED_MODULES_DONT_MATCH: 'integrityCheckLinkedModulesDontMatch',
-  PATTERNS_DONT_MATCH: 'integrityPatternsDontMatch',
-  MODULES_FOLDERS_MISSING: 'integrityModulesFoldersMissing',
-  SYSTEM_PARAMS_DONT_MATCH: 'integritySystemParamsDontMatch'
-};
-
-const INTEGRITY_FILE_DEFAULTS = () => ({
-  systemParams: (0, (_packageNameUtils || _load_packageNameUtils()).getSystemParams)(),
-  modulesFolders: [],
-  flags: [],
-  linkedModules: [],
-  topLevelPatterns: [],
-  lockfileEntries: {},
-  files: []
-});
-
-/**
- *
- */
-class InstallationIntegrityChecker {
-  constructor(config) {
-    this.config = config;
-  }
-
-  /**
-   * Get the common ancestor of every node_modules - it may be a node_modules directory itself, but isn't required to.
-   */
-
-  _getModulesRootFolder() {
-    if (this.config.modulesFolder) {
-      return this.config.modulesFolder;
-    } else if (this.config.workspaceRootFolder) {
-      return this.config.workspaceRootFolder;
-    } else {
-      return path.join(this.config.lockfileFolder, (_constants || _load_constants()).NODE_MODULES_FOLDER);
-    }
-  }
-
-  /**
-   * Get the directory in which the yarn-integrity file should be written.
-   */
-
-  _getIntegrityFileFolder() {
-    if (this.config.modulesFolder) {
-      return this.config.modulesFolder;
-    } else if (this.config.enableMetaFolder) {
-      return path.join(this.config.lockfileFolder, (_constants || _load_constants()).META_FOLDER);
-    } else {
-      return path.join(this.config.lockfileFolder, (_constants || _load_constants()).NODE_MODULES_FOLDER);
-    }
-  }
-
-  /**
-   * Get the full path of the yarn-integrity file.
-   */
-
-  _getIntegrityFileLocation() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const locationFolder = _this._getIntegrityFileFolder();
-      const locationPath = path.join(locationFolder, (_constants || _load_constants()).INTEGRITY_FILENAME);
-
-      const exists = yield (_fs || _load_fs()).exists(locationPath);
-
-      return {
-        locationFolder,
-        locationPath,
-        exists
-      };
-    })();
-  }
-
-  /**
-   * Get the list of the directories that contain our modules (there might be multiple such folders b/c of workspaces).
-   */
-
-  _getModulesFolders({ workspaceLayout } = {}) {
-    const locations = [];
-
-    if (this.config.modulesFolder) {
-      locations.push(this.config.modulesFolder);
-    } else {
-      locations.push(path.join(this.config.lockfileFolder, (_constants || _load_constants()).NODE_MODULES_FOLDER));
-    }
-
-    if (workspaceLayout) {
-      for (var _iterator = Object.keys(workspaceLayout.workspaces), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const workspaceName = _ref;
-
-        const loc = workspaceLayout.workspaces[workspaceName].loc;
-
-        if (loc) {
-          locations.push(path.join(loc, (_constants || _load_constants()).NODE_MODULES_FOLDER));
-        }
-      }
-    }
-
-    return locations.sort((_misc || _load_misc()).sortAlpha);
-  }
-
-  /**
-   * Get a list of the files that are located inside our module folders.
-   */
-  _getIntegrityListing({ workspaceLayout } = {}) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const files = [];
-
-      const recurse = (() => {
-        var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (dir) {
-          for (var _iterator2 = yield (_fs || _load_fs()).readdir(dir), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-            var _ref3;
-
-            if (_isArray2) {
-              if (_i2 >= _iterator2.length) break;
-              _ref3 = _iterator2[_i2++];
-            } else {
-              _i2 = _iterator2.next();
-              if (_i2.done) break;
-              _ref3 = _i2.value;
-            }
-
-            const file = _ref3;
-
-            const entry = path.join(dir, file);
-            const stat = yield (_fs || _load_fs()).lstat(entry);
-
-            if (stat.isDirectory()) {
-              yield recurse(entry);
-            } else {
-              files.push(entry);
-            }
-          }
-        });
-
-        return function recurse(_x) {
-          return _ref2.apply(this, arguments);
-        };
-      })();
-
-      for (var _iterator3 = _this2._getModulesFolders({ workspaceLayout }), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref4 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref4 = _i3.value;
-        }
-
-        const modulesFolder = _ref4;
-
-        if (yield (_fs || _load_fs()).exists(modulesFolder)) {
-          yield recurse(modulesFolder);
-        }
-      }
-
-      return files;
-    })();
-  }
-
-  /**
-   * Generate integrity hash of input lockfile.
-   */
-
-  _generateIntegrityFile(lockfile, patterns, flags, workspaceLayout, artifacts) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const result = (0, (_extends2 || _load_extends()).default)({}, INTEGRITY_FILE_DEFAULTS(), {
-        artifacts
-      });
-
-      result.topLevelPatterns = patterns;
-
-      // If using workspaces, we also need to add the workspaces patterns to the top-level, so that we'll know if a
-      // dependency is added or removed into one of them. We must take care not to read the aggregator (if !loc).
-      //
-      // Also note that we can't use of workspaceLayout.workspaces[].manifest._reference.patterns, because when
-      // doing a "yarn check", the _reference property hasn't yet been properly initialized.
-
-      if (workspaceLayout) {
-        result.topLevelPatterns = result.topLevelPatterns.filter(function (p) {
-          // $FlowFixMe
-          return !workspaceLayout.getManifestByPattern(p);
-        });
-
-        for (var _iterator4 = Object.keys(workspaceLayout.workspaces), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref5;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref5 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref5 = _i4.value;
-          }
-
-          const name = _ref5;
-
-          if (!workspaceLayout.workspaces[name].loc) {
-            continue;
-          }
-
-          const manifest = workspaceLayout.workspaces[name].manifest;
-
-          if (manifest) {
-            for (var _iterator5 = (_constants || _load_constants()).DEPENDENCY_TYPES, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-              var _ref6;
-
-              if (_isArray5) {
-                if (_i5 >= _iterator5.length) break;
-                _ref6 = _iterator5[_i5++];
-              } else {
-                _i5 = _iterator5.next();
-                if (_i5.done) break;
-                _ref6 = _i5.value;
-              }
-
-              const dependencyType = _ref6;
-
-              const dependencies = manifest[dependencyType];
-
-              if (!dependencies) {
-                continue;
-              }
-
-              for (var _iterator6 = Object.keys(dependencies), _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-                var _ref7;
-
-                if (_isArray6) {
-                  if (_i6 >= _iterator6.length) break;
-                  _ref7 = _iterator6[_i6++];
-                } else {
-                  _i6 = _iterator6.next();
-                  if (_i6.done) break;
-                  _ref7 = _i6.value;
-                }
-
-                const dep = _ref7;
-
-                result.topLevelPatterns.push(`${dep}@${dependencies[dep]}`);
-              }
-            }
-          }
-        }
-      }
-
-      result.topLevelPatterns.sort((_misc || _load_misc()).sortAlpha);
-
-      if (flags.checkFiles) {
-        result.flags.push('checkFiles');
-      }
-
-      if (flags.flat) {
-        result.flags.push('flat');
-      }
-
-      if (_this3.config.ignoreScripts) {
-        result.flags.push('ignoreScripts');
-      }
-      if (_this3.config.focus) {
-        result.flags.push('focus: ' + _this3.config.focusedWorkspaceName);
-      }
-
-      if (_this3.config.production) {
-        result.flags.push('production');
-      }
-
-      if (_this3.config.plugnplayEnabled) {
-        result.flags.push('plugnplay');
-      }
-
-      const linkedModules = _this3.config.linkedModules;
-
-      if (linkedModules.length) {
-        result.linkedModules = linkedModules.sort((_misc || _load_misc()).sortAlpha);
-      }
-
-      for (var _iterator7 = Object.keys(lockfile), _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref8;
-
-        if (_isArray7) {
-          if (_i7 >= _iterator7.length) break;
-          _ref8 = _iterator7[_i7++];
-        } else {
-          _i7 = _iterator7.next();
-          if (_i7.done) break;
-          _ref8 = _i7.value;
-        }
-
-        const key = _ref8;
-
-        result.lockfileEntries[key] = lockfile[key].resolved || '';
-      }
-
-      for (var _iterator8 = _this3._getModulesFolders({ workspaceLayout }), _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-        var _ref9;
-
-        if (_isArray8) {
-          if (_i8 >= _iterator8.length) break;
-          _ref9 = _iterator8[_i8++];
-        } else {
-          _i8 = _iterator8.next();
-          if (_i8.done) break;
-          _ref9 = _i8.value;
-        }
-
-        const modulesFolder = _ref9;
-
-        if (yield (_fs || _load_fs()).exists(modulesFolder)) {
-          result.modulesFolders.push(path.relative(_this3.config.lockfileFolder, modulesFolder));
-        }
-      }
-
-      if (flags.checkFiles) {
-        const modulesRoot = _this3._getModulesRootFolder();
-
-        result.files = (yield _this3._getIntegrityListing({ workspaceLayout })).map(function (entry) {
-          return path.relative(modulesRoot, entry);
-        }).sort((_misc || _load_misc()).sortAlpha);
-      }
-
-      return result;
-    })();
-  }
-
-  _getIntegrityFile(locationPath) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const expectedRaw = yield (_fs || _load_fs()).readFile(locationPath);
-      try {
-        return (0, (_extends2 || _load_extends()).default)({}, INTEGRITY_FILE_DEFAULTS(), JSON.parse(expectedRaw));
-      } catch (e) {
-        // ignore JSON parsing for legacy text integrity files compatibility
-      }
-      return null;
-    })();
-  }
-
-  _compareIntegrityFiles(actual, expected, checkFiles, workspaceLayout) {
-    if (!expected) {
-      return 'EXPECTED_IS_NOT_A_JSON';
-    }
-
-    if (!(0, (_misc || _load_misc()).compareSortedArrays)(actual.linkedModules, expected.linkedModules)) {
-      return 'LINKED_MODULES_DONT_MATCH';
-    }
-
-    if (actual.systemParams !== expected.systemParams) {
-      return 'SYSTEM_PARAMS_DONT_MATCH';
-    }
-
-    let relevantExpectedFlags = expected.flags.slice();
-
-    // If we run "yarn" after "yarn --check-files", we shouldn't fail the less strict validation
-    if (actual.flags.indexOf('checkFiles') === -1) {
-      relevantExpectedFlags = relevantExpectedFlags.filter(flag => flag !== 'checkFiles');
-    }
-
-    if (!(0, (_misc || _load_misc()).compareSortedArrays)(actual.flags, relevantExpectedFlags)) {
-      return 'FLAGS_DONT_MATCH';
-    }
-
-    if (!(0, (_misc || _load_misc()).compareSortedArrays)(actual.topLevelPatterns, expected.topLevelPatterns || [])) {
-      return 'PATTERNS_DONT_MATCH';
-    }
-
-    for (var _iterator9 = Object.keys(actual.lockfileEntries), _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-      var _ref10;
-
-      if (_isArray9) {
-        if (_i9 >= _iterator9.length) break;
-        _ref10 = _iterator9[_i9++];
-      } else {
-        _i9 = _iterator9.next();
-        if (_i9.done) break;
-        _ref10 = _i9.value;
-      }
-
-      const key = _ref10;
-
-      if (actual.lockfileEntries[key] !== expected.lockfileEntries[key]) {
-        return 'LOCKFILE_DONT_MATCH';
-      }
-    }
-
-    for (var _iterator10 = Object.keys(expected.lockfileEntries), _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray10) {
-        if (_i10 >= _iterator10.length) break;
-        _ref11 = _iterator10[_i10++];
-      } else {
-        _i10 = _iterator10.next();
-        if (_i10.done) break;
-        _ref11 = _i10.value;
-      }
-
-      const key = _ref11;
-
-      if (actual.lockfileEntries[key] !== expected.lockfileEntries[key]) {
-        return 'LOCKFILE_DONT_MATCH';
-      }
-    }
-
-    if (checkFiles) {
-      // Early bailout if we expect more files than what we have
-      if (expected.files.length > actual.files.length) {
-        return 'FILES_MISSING';
-      }
-
-      // Since we know the "files" array is sorted (alphabetically), we can optimize the thing
-      // Instead of storing the files in a Set, we can just iterate both arrays at once. O(n)!
-      for (let u = 0, v = 0; u < expected.files.length; ++u) {
-        // Index that, if reached, means that we won't have enough food to match the remaining expected entries anyway
-        const max = v + (actual.files.length - v) - (expected.files.length - u) + 1;
-
-        // Skip over files that have been added (ie not present in 'expected')
-        while (v < max && actual.files[v] !== expected.files[u]) {
-          v += 1;
-        }
-
-        // If we've reached the index defined above, the file is either missing or we can early exit
-        if (v === max) {
-          return 'FILES_MISSING';
-        }
-      }
-    }
-    return 'OK';
-  }
-
-  check(patterns, lockfile, flags, workspaceLayout) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // check if patterns exist in lockfile
-      const missingPatterns = patterns.filter(function (p) {
-        return !lockfile[p] && (!workspaceLayout || !workspaceLayout.getManifestByPattern(p));
-      });
-
-      const loc = yield _this4._getIntegrityFileLocation();
-      if (missingPatterns.length || !loc.exists) {
-        return {
-          integrityFileMissing: !loc.exists,
-          missingPatterns
-        };
-      }
-
-      const actual = yield _this4._generateIntegrityFile(lockfile, patterns, flags, workspaceLayout);
-
-      const expected = yield _this4._getIntegrityFile(loc.locationPath);
-      let integrityMatches = _this4._compareIntegrityFiles(actual, expected, flags.checkFiles, workspaceLayout);
-
-      if (integrityMatches === 'OK') {
-        invariant(expected, "The integrity shouldn't pass without integrity file");
-        for (var _iterator11 = expected.modulesFolders, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-          var _ref12;
-
-          if (_isArray11) {
-            if (_i11 >= _iterator11.length) break;
-            _ref12 = _iterator11[_i11++];
-          } else {
-            _i11 = _iterator11.next();
-            if (_i11.done) break;
-            _ref12 = _i11.value;
-          }
-
-          const modulesFolder = _ref12;
-
-          if (!(yield (_fs || _load_fs()).exists(path.join(_this4.config.lockfileFolder, modulesFolder)))) {
-            integrityMatches = 'MODULES_FOLDERS_MISSING';
-          }
-        }
-      }
-
-      return {
-        integrityFileMissing: false,
-        integrityMatches: integrityMatches === 'OK',
-        integrityError: integrityMatches === 'OK' ? undefined : integrityMatches,
-        missingPatterns,
-        hardRefreshRequired: integrityMatches === 'SYSTEM_PARAMS_DONT_MATCH'
-      };
-    })();
-  }
-
-  /**
-   * Get artifacts from integrity file if it exists.
-   */
-  getArtifacts() {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const loc = yield _this5._getIntegrityFileLocation();
-      if (!loc.exists) {
-        return null;
-      }
-
-      const expectedRaw = yield (_fs || _load_fs()).readFile(loc.locationPath);
-      let expected;
-      try {
-        expected = JSON.parse(expectedRaw);
-      } catch (e) {
-        // ignore JSON parsing for legacy text integrity files compatibility
-      }
-
-      return expected ? expected.artifacts : null;
-    })();
-  }
-
-  /**
-   * Write the integrity hash of the current install to disk.
-   */
-  save(patterns, lockfile, flags, workspaceLayout, artifacts) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const integrityFile = yield _this6._generateIntegrityFile(lockfile, patterns, flags, workspaceLayout, artifacts);
-
-      const loc = yield _this6._getIntegrityFileLocation();
-      invariant(loc.locationPath, 'expected integrity hash location');
-
-      yield (_fs || _load_fs()).mkdirp(path.dirname(loc.locationPath));
-      yield (_fs || _load_fs()).writeFile(loc.locationPath, JSON.stringify(integrityFile, null, 2));
-    })();
-  }
-
-  removeIntegrityFile() {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const loc = yield _this7._getIntegrityFileLocation();
-      if (loc.exists) {
-        yield (_fs || _load_fs()).unlink(loc.locationPath);
-      }
-    })();
-  }
-}
-exports.default = InstallationIntegrityChecker;
-
-/***/ }),
-/* 209 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.testEngine = testEngine;
-exports.checkOne = checkOne;
-exports.check = check;
-exports.shouldCheck = shouldCheck;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _yarnVersion;
-
-function _load_yarnVersion() {
-  return _yarnVersion = __webpack_require__(120);
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = __webpack_require__(224);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const semver = __webpack_require__(22);
-
-const VERSIONS = Object.assign({}, process.versions, {
-  yarn: (_yarnVersion || _load_yarnVersion()).version
-});
-
-function isValid(items, actual) {
-  let isNotWhitelist = true;
-  let isBlacklist = false;
-
-  for (var _iterator = items, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const item = _ref;
-
-    // blacklist
-    if (item[0] === '!') {
-      isBlacklist = true;
-
-      if (actual === item.slice(1)) {
-        return false;
-      }
-      // whitelist
-    } else {
-      isNotWhitelist = false;
-
-      if (item === actual) {
-        return true;
-      }
-    }
-  }
-
-  // npm allows blacklists and whitelists to be mixed. Blacklists with
-  // whitelisted items should be treated as whitelists.
-  return isBlacklist && isNotWhitelist;
-}
-
-const aliases = (0, (_map || _load_map()).default)({
-  iojs: 'node' // we should probably prompt these libraries to fix this
-});
-
-const ignore = ['npm', // we'll never satisfy this for obvious reasons
-'teleport', // a module bundler used by some modules
-'rhino', // once a target for older modules
-'cordovaDependencies', // http://bit.ly/2tkUePg
-'parcel'];
-
-function testEngine(name, range, versions, looseSemver) {
-  const actual = versions[name];
-  if (!actual) {
-    return false;
-  }
-
-  if (!semver.valid(actual, looseSemver)) {
-    return false;
-  }
-
-  if (semver.satisfies(actual, range, looseSemver)) {
-    return true;
-  }
-
-  if (name === 'yarn' && (0, (_semver || _load_semver()).satisfiesWithPrereleases)(actual, range, looseSemver)) {
-    return true;
-  }
-
-  if (name === 'node' && semver.gt(actual, '1.0.0', looseSemver)) {
-    // WARNING: this is a massive hack and is super gross but necessary for compatibility
-    // some modules have the `engines.node` field set to a caret version below semver major v1
-    // eg. ^0.12.0. this is problematic as we enforce engines checks and node is now on version >=1
-    // to allow this pattern we transform the node version to fake ones in the minor range 10-13
-    const major = semver.major(actual, looseSemver);
-    const fakes = [`0.10.${major}`, `0.11.${major}`, `0.12.${major}`, `0.13.${major}`];
-    for (var _iterator2 = fakes, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref2 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref2 = _i2.value;
-      }
-
-      const actualFake = _ref2;
-
-      if (semver.satisfies(actualFake, range, looseSemver)) {
-        return true;
-      }
-    }
-  }
-
-  // incompatible version
-  return false;
-}
-
-function isValidArch(archs) {
-  return isValid(archs, process.arch);
-}
-
-function isValidPlatform(platforms) {
-  return isValid(platforms, process.platform);
-}
-
-function checkOne(info, config, ignoreEngines) {
-  let didIgnore = false;
-  let didError = false;
-  const reporter = config.reporter;
-  const human = `${info.name}@${info.version}`;
-
-  const pushError = msg => {
-    const ref = info._reference;
-
-    if (ref && ref.optional) {
-      ref.ignore = true;
-      ref.incompatible = true;
-
-      reporter.info(`${human}: ${msg}`);
-      if (!didIgnore) {
-        reporter.info(reporter.lang('optionalCompatibilityExcluded', human));
-        didIgnore = true;
-      }
-    } else {
-      reporter.error(`${human}: ${msg}`);
-      didError = true;
-    }
-  };
-
-  const os = info.os,
-        cpu = info.cpu,
-        engines = info.engines;
-
-
-  if (shouldCheckPlatform(os, config.ignorePlatform) && !isValidPlatform(os)) {
-    pushError(reporter.lang('incompatibleOS', process.platform));
-  }
-
-  if (shouldCheckCpu(cpu, config.ignorePlatform) && !isValidArch(cpu)) {
-    pushError(reporter.lang('incompatibleCPU', process.arch));
-  }
-
-  if (shouldCheckEngines(engines, ignoreEngines)) {
-    for (var _iterator3 = (0, (_misc || _load_misc()).entries)(info.engines), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref3 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref3 = _i3.value;
-      }
-
-      const entry = _ref3;
-
-      let name = entry[0];
-      const range = entry[1];
-
-      if (aliases[name]) {
-        name = aliases[name];
-      }
-
-      if (VERSIONS[name]) {
-        if (!testEngine(name, range, VERSIONS, config.looseSemver)) {
-          pushError(reporter.lang('incompatibleEngine', name, range, VERSIONS[name]));
-        }
-      } else if (ignore.indexOf(name) < 0) {
-        reporter.warn(`${human}: ${reporter.lang('invalidEngine', name)}`);
-      }
-    }
-  }
-
-  if (didError) {
-    throw new (_errors || _load_errors()).MessageError(reporter.lang('foundIncompatible'));
-  }
-}
-
-function check(infos, config, ignoreEngines) {
-  for (var _iterator4 = infos, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-    var _ref4;
-
-    if (_isArray4) {
-      if (_i4 >= _iterator4.length) break;
-      _ref4 = _iterator4[_i4++];
-    } else {
-      _i4 = _iterator4.next();
-      if (_i4.done) break;
-      _ref4 = _i4.value;
-    }
-
-    const info = _ref4;
-
-    checkOne(info, config, ignoreEngines);
-  }
-}
-
-function shouldCheckCpu(cpu, ignorePlatform) {
-  return !ignorePlatform && Array.isArray(cpu) && cpu.length > 0;
-}
-
-function shouldCheckPlatform(os, ignorePlatform) {
-  return !ignorePlatform && Array.isArray(os) && os.length > 0;
-}
-
-function shouldCheckEngines(engines, ignoreEngines) {
-  return !ignoreEngines && typeof engines === 'object';
-}
-
-function shouldCheck(manifest, options) {
-  return shouldCheckCpu(manifest.cpu, options.ignorePlatform) || shouldCheckPlatform(manifest.os, options.ignorePlatform) || shouldCheckEngines(manifest.engines, options.ignoreEngines);
-}
-
-/***/ }),
-/* 210 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.fetchOneRemote = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let fetchCache = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (dest, fetcher, config, remote) {
-    // $FlowFixMe: This error doesn't make sense
-    var _ref2 = yield config.readPackageMetadata(dest);
-
-    const hash = _ref2.hash,
-          pkg = _ref2.package,
-          cacheRemote = _ref2.remote;
-
-
-    const cacheIntegrity = cacheRemote.cacheIntegrity || cacheRemote.integrity;
-    const cacheHash = cacheRemote.hash;
-
-    if (remote.integrity) {
-      if (!cacheIntegrity || !ssri.parse(cacheIntegrity).match(remote.integrity)) {
-        throw new (_errors || _load_errors()).SecurityError(config.reporter.lang('fetchBadIntegrityCache', pkg.name, cacheIntegrity, remote.integrity));
-      }
-    }
-
-    if (remote.hash) {
-      if (!cacheHash || cacheHash !== remote.hash) {
-        throw new (_errors || _load_errors()).SecurityError(config.reporter.lang('fetchBadHashCache', pkg.name, cacheHash, remote.hash));
-      }
-    }
-
-    yield fetcher.setupMirrorFromCache();
-    return {
-      package: pkg,
-      hash,
-      dest,
-      cached: true
-    };
-  });
-
-  return function fetchCache(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let fetchOneRemote = exports.fetchOneRemote = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (remote, name, version, dest, config) {
-    // Mock metadata for symlinked dependencies
-    if (remote.type === 'link') {
-      const mockPkg = { _uid: '', name: '', version: '0.0.0' };
-      return Promise.resolve({ resolved: null, hash: '', dest, package: mockPkg, cached: false });
-    }
-
-    const Fetcher = (_index || _load_index())[remote.type];
-    if (!Fetcher) {
-      throw new (_errors || _load_errors()).MessageError(config.reporter.lang('unknownFetcherFor', remote.type));
-    }
-
-    const fetcher = new Fetcher(dest, remote, config);
-    if (yield config.isValidModuleDest(dest)) {
-      return fetchCache(dest, fetcher, config, remote);
-    }
-
-    // remove as the module may be invalid
-    yield (_fs || _load_fs()).unlink(dest);
-
-    try {
-      return yield fetcher.fetch({
-        name,
-        version
-      });
-    } catch (err) {
-      try {
-        yield (_fs || _load_fs()).unlink(dest);
-      } catch (err2) {
-        // what do?
-      }
-      throw err;
-    }
-  });
-
-  return function fetchOneRemote(_x5, _x6, _x7, _x8, _x9) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-let maybeFetchOne = (() => {
-  var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (ref, config) {
-    try {
-      return yield fetchOne(ref, config);
-    } catch (err) {
-      if (ref.optional) {
-        config.reporter.error(err.message);
-        return null;
-      } else {
-        throw err;
-      }
-    }
-  });
-
-  return function maybeFetchOne(_x10, _x11) {
-    return _ref4.apply(this, arguments);
-  };
-})();
-
-exports.fetch = fetch;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireWildcard(__webpack_require__(552));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _promise;
-
-function _load_promise() {
-  return _promise = _interopRequireWildcard(__webpack_require__(50));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const ssri = __webpack_require__(65);
-
-function fetchOne(ref, config) {
-  const dest = config.generateModuleCachePath(ref);
-
-  return fetchOneRemote(ref.remote, ref.name, ref.version, dest, config);
-}
-
-function fetch(pkgs, config) {
-  const pkgsPerDest = new Map();
-  pkgs = pkgs.filter(pkg => {
-    const ref = pkg._reference;
-    if (!ref) {
-      return false;
-    }
-    const dest = config.generateModuleCachePath(ref);
-    const otherPkg = pkgsPerDest.get(dest);
-    if (otherPkg) {
-      config.reporter.warn(config.reporter.lang('multiplePackagesCantUnpackInSameDestination', ref.patterns, dest, otherPkg.patterns));
-      return false;
-    }
-    pkgsPerDest.set(dest, ref);
-    return true;
-  });
-  const tick = config.reporter.progress(pkgs.length);
-
-  return (_promise || _load_promise()).queue(pkgs, (() => {
-    var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (pkg) {
-      const ref = pkg._reference;
-      if (!ref) {
-        return pkg;
-      }
-
-      const res = yield maybeFetchOne(ref, config);
-      let newPkg;
-
-      if (res) {
-        newPkg = res.package;
-
-        // update with new remote
-        // but only if there was a hash previously as the tarball fetcher does not provide a hash.
-        if (ref.remote.hash) {
-          // if the checksum was updated, also update resolved and cache
-          if (ref.remote.hash !== res.hash && config.updateChecksums) {
-            const oldHash = ref.remote.hash;
-            if (ref.remote.resolved) {
-              ref.remote.resolved = ref.remote.resolved.replace(oldHash, res.hash);
-            }
-            ref.config.cache = Object.keys(ref.config.cache).reduce(function (cache, entry) {
-              const entryWithNewHash = entry.replace(oldHash, res.hash);
-              cache[entryWithNewHash] = ref.config.cache[entry];
-              return cache;
-            }, {});
-          }
-          ref.remote.hash = res.hash || ref.remote.hash;
-        }
-      }
-
-      if (tick) {
-        tick();
-      }
-
-      if (newPkg) {
-        newPkg._reference = ref;
-        newPkg._remote = ref.remote;
-        newPkg.name = pkg.name;
-        newPkg.fresh = pkg.fresh;
-        return newPkg;
-      }
-
-      return pkg;
-    });
-
-    return function (_x12) {
-      return _ref5.apply(this, arguments);
-    };
-  })(), config.networkConcurrency);
-}
-
-/***/ }),
-/* 211 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.linkBin = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let linkBin = exports.linkBin = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (src, dest) {
-    if (process.platform === 'win32') {
-      const unlockMutex = yield (0, (_mutex || _load_mutex()).default)(src);
-      try {
-        yield cmdShim(src, dest, { createPwshFile: false });
-      } finally {
-        unlockMutex();
-      }
-    } else {
-      yield (_fs || _load_fs()).mkdirp(path.dirname(dest));
-      yield (_fs || _load_fs()).symlink(src, dest);
-      yield (_fs || _load_fs()).chmod(dest, '755');
-    }
-  });
-
-  return function linkBin(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-var _packageHoister;
-
-function _load_packageHoister() {
-  return _packageHoister = _interopRequireDefault(__webpack_require__(556));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _promise;
-
-function _load_promise() {
-  return _promise = _interopRequireWildcard(__webpack_require__(50));
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _mutex;
-
-function _load_mutex() {
-  return _mutex = _interopRequireDefault(__webpack_require__(375));
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = __webpack_require__(224);
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const cmdShim = __webpack_require__(201);
-const path = __webpack_require__(0);
-const semver = __webpack_require__(22);
-// Concurrency for creating bin links disabled because of the issue #1961
-const linkBinConcurrency = 1;
-
-class PackageLinker {
-  constructor(config, resolver) {
-    this.resolver = resolver;
-    this.reporter = config.reporter;
-    this.config = config;
-    this.artifacts = {};
-    this.topLevelBinLinking = true;
-    this.unplugged = [];
-  }
-
-  setArtifacts(artifacts) {
-    this.artifacts = artifacts;
-  }
-
-  setTopLevelBinLinking(topLevelBinLinking) {
-    this.topLevelBinLinking = topLevelBinLinking;
-  }
-
-  linkSelfDependencies(pkg, pkgLoc, targetBinLoc, override = false) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      targetBinLoc = path.join(targetBinLoc, '.bin');
-      yield (_fs || _load_fs()).mkdirp(targetBinLoc);
-      targetBinLoc = yield (_fs || _load_fs()).realpath(targetBinLoc);
-      pkgLoc = yield (_fs || _load_fs()).realpath(pkgLoc);
-      for (var _iterator = (0, (_misc || _load_misc()).entries)(pkg.bin), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref3 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref3 = _i.value;
-        }
-
-        const _ref2 = _ref3;
-        const scriptName = _ref2[0];
-        const scriptCmd = _ref2[1];
-
-        const dest = path.join(targetBinLoc, scriptName);
-        const src = path.join(pkgLoc, scriptCmd);
-        if (!(yield (_fs || _load_fs()).exists(src))) {
-          if (!override) {
-            // TODO maybe throw an error
-            continue;
-          }
-        }
-        yield linkBin(src, dest);
-      }
-    })();
-  }
-
-  linkBinDependencies(pkg, dir) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const deps = [];
-
-      const ref = pkg._reference;
-      invariant(ref, 'Package reference is missing');
-
-      const remote = pkg._remote;
-      invariant(remote, 'Package remote is missing');
-
-      // link up `bin scripts` in `dependencies`
-      for (var _iterator2 = ref.dependencies, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref4 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref4 = _i2.value;
-        }
-
-        const pattern = _ref4;
-
-        const dep = _this.resolver.getStrictResolvedPattern(pattern);
-        if (
-        // Missing locations means not installed inside node_modules
-        dep._reference && dep._reference.locations.length && dep.bin && Object.keys(dep.bin).length) {
-          const loc = yield _this.findNearestInstalledVersionOfPackage(dep, dir);
-          deps.push({ dep, loc });
-        }
-      }
-
-      // link up the `bin` scripts in bundled dependencies
-      if (pkg.bundleDependencies) {
-        for (var _iterator3 = pkg.bundleDependencies, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref5;
-
-          if (_isArray3) {
-            if (_i3 >= _iterator3.length) break;
-            _ref5 = _iterator3[_i3++];
-          } else {
-            _i3 = _iterator3.next();
-            if (_i3.done) break;
-            _ref5 = _i3.value;
-          }
-
-          const depName = _ref5;
-
-          const locs = ref.locations.map(function (loc) {
-            return path.join(loc, _this.config.getFolder(pkg), depName);
-          });
-          try {
-            const dep = yield _this.config.readManifest(locs[0], remote.registry); //all of them should be the same
-
-            if (dep.bin && Object.keys(dep.bin).length) {
-              deps.push(...locs.map(function (loc) {
-                return { dep, loc };
-              }));
-            }
-          } catch (ex) {
-            if (ex.code !== 'ENOENT') {
-              throw ex;
-            }
-            // intentionally ignoring ENOENT error.
-            // bundledDependency either does not exist or does not contain a package.json
-          }
-        }
-      }
-
-      // no deps to link
-      if (!deps.length) {
-        return;
-      }
-
-      // write the executables
-      for (var _iterator4 = deps, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref7 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref7 = _i4.value;
-        }
-
-        const _ref6 = _ref7;
-        const dep = _ref6.dep,
-              loc = _ref6.loc;
-
-        if (dep._reference && dep._reference.locations.length) {
-          invariant(!dep._reference.isPlugnplay, "Plug'n'play packages should not be referenced here");
-          yield _this.linkSelfDependencies(dep, loc, dir);
-        }
-      }
-    })();
-  }
-
-  //find the installation location of ref that would be used in binLoc based on node module resolution
-  findNearestInstalledVersionOfPackage(pkg, binLoc) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const ref = pkg._reference;
-      invariant(ref, 'expected pkg reference for ' + pkg.name);
-      const moduleFolder = _this2.config.getFolder(pkg);
-      yield (_fs || _load_fs()).mkdirp(binLoc);
-      const realBinLoc = yield (_fs || _load_fs()).realpath(binLoc);
-
-      const allLocations = [...ref.locations];
-      const realLocations = yield Promise.all(ref.locations.map(function (loc) {
-        return (_fs || _load_fs()).realpath(loc);
-      }));
-      realLocations.forEach(function (loc) {
-        return allLocations.indexOf(loc) !== -1 || allLocations.push(loc);
-      });
-
-      const locationBinLocPairs = allLocations.map(function (loc) {
-        return [loc, binLoc];
-      });
-      if (binLoc !== realBinLoc) {
-        locationBinLocPairs.push(...allLocations.map(function (loc) {
-          return [loc, realBinLoc];
-        }));
-      }
-
-      const distancePairs = locationBinLocPairs.map(function ([loc, curBinLoc]) {
-        let distance = 0;
-        let curLoc = curBinLoc;
-        let notFound = false;
-
-        while (path.join(curLoc, ref.name) !== loc && path.join(curLoc, moduleFolder, ref.name) !== loc) {
-          const next = path.dirname(curLoc);
-          if (curLoc === next) {
-            notFound = true;
-            break;
-          }
-
-          distance++;
-          curLoc = next;
-        }
-        return notFound ? null : [loc, distance];
-      });
-
-      //remove items where path was not found
-      const filteredDistancePairs = distancePairs.filter(function (d) {
-        return d;
-      });
-      filteredDistancePairs;
-
-      invariant(filteredDistancePairs.length > 0, `could not find a copy of ${pkg.name} to link in ${binLoc}`);
-
-      //get smallest distance from package location
-      const minItem = filteredDistancePairs.reduce(function (min, cur) {
-        return cur[1] < min[1] ? cur : min;
-      });
-
-      invariant(minItem[1] >= 0, 'could not find a target for bin dir of ' + minItem.toString());
-      return minItem[0];
-    })();
-  }
-
-  getFlatHoistedTree(patterns, workspaceLayout, { ignoreOptional } = {}) {
-    const hoister = new (_packageHoister || _load_packageHoister()).default(this.config, this.resolver, { ignoreOptional, workspaceLayout });
-    hoister.seed(patterns);
-    if (this.config.focus) {
-      hoister.markShallowWorkspaceEntries();
-    }
-    return hoister.init();
-  }
-
-  copyModules(patterns, workspaceLayout, { linkDuplicates, ignoreOptional } = {}) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let flatTree = _this3.getFlatHoistedTree(patterns, workspaceLayout, { ignoreOptional });
-      // sorted tree makes file creation and copying not to interfere with each other
-      flatTree = flatTree.sort(function (dep1, dep2) {
-        return dep1[0].localeCompare(dep2[0]);
-      });
-
-      // list of artifacts in modules to remove from extraneous removal
-      const artifactFiles = [];
-
-      const copyQueue = new Map();
-      const hardlinkQueue = new Map();
-      const hardlinksEnabled = linkDuplicates && (yield (_fs || _load_fs()).hardlinksWork(_this3.config.cwd));
-
-      const copiedSrcs = new Map();
-      const symlinkPaths = new Map();
-      for (var _iterator5 = flatTree, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref9;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref9 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref9 = _i5.value;
-        }
-
-        const _ref8 = _ref9;
-        const folder = _ref8[0];
-        var _ref8$ = _ref8[1];
-        const pkg = _ref8$.pkg;
-        const loc = _ref8$.loc;
-        const isShallow = _ref8$.isShallow;
-
-        const remote = pkg._remote || { type: '' };
-        const ref = pkg._reference;
-        let dest = folder;
-        invariant(ref, 'expected package reference');
-
-        let src = loc;
-        let type = '';
-        if (remote.type === 'link') {
-          // replace package source from incorrect cache location (workspaces and link: are not cached)
-          // with a symlink source
-          src = remote.reference;
-          type = 'symlink';
-        } else if (workspaceLayout && remote.type === 'workspace' && !isShallow) {
-          src = remote.reference;
-          type = 'symlink';
-          // to get real path for non hoisted dependencies
-          symlinkPaths.set(dest, src);
-        } else {
-          // backwards compatibility: get build artifacts from metadata
-          // does not apply to symlinked dependencies
-          const metadata = yield _this3.config.readPackageMetadata(src);
-          for (var _iterator15 = metadata.artifacts, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : _iterator15[Symbol.iterator]();;) {
-            var _ref23;
-
-            if (_isArray15) {
-              if (_i15 >= _iterator15.length) break;
-              _ref23 = _iterator15[_i15++];
-            } else {
-              _i15 = _iterator15.next();
-              if (_i15.done) break;
-              _ref23 = _i15.value;
-            }
-
-            const file = _ref23;
-
-            artifactFiles.push(path.join(dest, file));
-          }
-        }
-
-        for (var _iterator16 = symlinkPaths.entries(), _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : _iterator16[Symbol.iterator]();;) {
-          var _ref25;
-
-          if (_isArray16) {
-            if (_i16 >= _iterator16.length) break;
-            _ref25 = _iterator16[_i16++];
-          } else {
-            _i16 = _iterator16.next();
-            if (_i16.done) break;
-            _ref25 = _i16.value;
-          }
-
-          const _ref24 = _ref25;
-          const symlink = _ref24[0];
-          const realpath = _ref24[1];
-
-          if (dest.indexOf(symlink + path.sep) === 0) {
-            // after hoisting we end up with this structure
-            // root/node_modules/workspace-package(symlink)/node_modules/package-a
-            // fs.copy operations can't copy files through a symlink, so all the paths under workspace-package
-            // need to be replaced with a real path, except for the symlink root/node_modules/workspace-package
-            dest = dest.replace(symlink, realpath);
-          }
-        }
-
-        if (_this3.config.plugnplayEnabled) {
-          ref.isPlugnplay = true;
-          if (yield _this3._isUnplugged(pkg, ref)) {
-            dest = _this3.config.generatePackageUnpluggedPath(ref);
-
-            // We don't skip the copy if the unplugged package isn't materialized yet
-            if (yield (_fs || _load_fs()).exists(dest)) {
-              ref.addLocation(dest);
-              continue;
-            }
-          } else {
-            ref.addLocation(src);
-            continue;
-          }
-        }
-
-        ref.addLocation(dest);
-
-        const integrityArtifacts = _this3.artifacts[`${pkg.name}@${pkg.version}`];
-        if (integrityArtifacts) {
-          for (var _iterator17 = integrityArtifacts, _isArray17 = Array.isArray(_iterator17), _i17 = 0, _iterator17 = _isArray17 ? _iterator17 : _iterator17[Symbol.iterator]();;) {
-            var _ref26;
-
-            if (_isArray17) {
-              if (_i17 >= _iterator17.length) break;
-              _ref26 = _iterator17[_i17++];
-            } else {
-              _i17 = _iterator17.next();
-              if (_i17.done) break;
-              _ref26 = _i17.value;
-            }
-
-            const file = _ref26;
-
-            artifactFiles.push(path.join(dest, file));
-          }
-        }
-
-        const copiedDest = copiedSrcs.get(src);
-        if (!copiedDest) {
-          // no point to hardlink to a symlink
-          if (hardlinksEnabled && type !== 'symlink') {
-            copiedSrcs.set(src, dest);
-          }
-          copyQueue.set(dest, {
-            src,
-            dest,
-            type,
-            onFresh() {
-              if (ref) {
-                ref.setFresh(true);
-              }
-            }
-          });
-        } else {
-          hardlinkQueue.set(dest, {
-            src: copiedDest,
-            dest,
-            onFresh() {
-              if (ref) {
-                ref.setFresh(true);
-              }
-            }
-          });
-        }
-      }
-
-      const possibleExtraneous = new Set();
-      const scopedPaths = new Set();
-
-      const findExtraneousFiles = (() => {
-        var _ref10 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (basePath) {
-          for (var _iterator6 = _this3.config.registryFolders, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-            var _ref11;
-
-            if (_isArray6) {
-              if (_i6 >= _iterator6.length) break;
-              _ref11 = _iterator6[_i6++];
-            } else {
-              _i6 = _iterator6.next();
-              if (_i6.done) break;
-              _ref11 = _i6.value;
-            }
-
-            const folder = _ref11;
-
-            const loc = path.resolve(basePath, folder);
-
-            if (yield (_fs || _load_fs()).exists(loc)) {
-              const files = yield (_fs || _load_fs()).readdir(loc);
-
-              for (var _iterator7 = files, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-                var _ref12;
-
-                if (_isArray7) {
-                  if (_i7 >= _iterator7.length) break;
-                  _ref12 = _iterator7[_i7++];
-                } else {
-                  _i7 = _iterator7.next();
-                  if (_i7.done) break;
-                  _ref12 = _i7.value;
-                }
-
-                const file = _ref12;
-
-                const filepath = path.join(loc, file);
-
-                // it's a scope, not a package
-                if (file[0] === '@') {
-                  scopedPaths.add(filepath);
-
-                  for (var _iterator8 = yield (_fs || _load_fs()).readdir(filepath), _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-                    var _ref13;
-
-                    if (_isArray8) {
-                      if (_i8 >= _iterator8.length) break;
-                      _ref13 = _iterator8[_i8++];
-                    } else {
-                      _i8 = _iterator8.next();
-                      if (_i8.done) break;
-                      _ref13 = _i8.value;
-                    }
-
-                    const subfile = _ref13;
-
-                    possibleExtraneous.add(path.join(filepath, subfile));
-                  }
-                } else if (file[0] === '.' && file !== '.bin') {
-                  if (!(yield (_fs || _load_fs()).lstat(filepath)).isDirectory()) {
-                    possibleExtraneous.add(filepath);
-                  }
-                } else {
-                  possibleExtraneous.add(filepath);
-                }
-              }
-            }
-          }
-        });
-
-        return function findExtraneousFiles(_x3) {
-          return _ref10.apply(this, arguments);
-        };
-      })();
-
-      yield findExtraneousFiles(_this3.config.lockfileFolder);
-      if (workspaceLayout) {
-        for (var _iterator9 = Object.keys(workspaceLayout.workspaces), _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-          var _ref14;
-
-          if (_isArray9) {
-            if (_i9 >= _iterator9.length) break;
-            _ref14 = _iterator9[_i9++];
-          } else {
-            _i9 = _iterator9.next();
-            if (_i9.done) break;
-            _ref14 = _i9.value;
-          }
-
-          const workspaceName = _ref14;
-
-          yield findExtraneousFiles(workspaceLayout.workspaces[workspaceName].loc);
-        }
-      }
-
-      // If an Extraneous is an entry created via "yarn link", we prevent it from being overwritten.
-      // Unfortunately, the only way we can know if they have been created this way is to check if they
-      // are symlinks - problem is that it then conflicts with the newly introduced "link:" protocol,
-      // which also creates symlinks :( a somewhat weak fix is to check if the symlink target is registered
-      // inside the linkFolder, in which case we assume it has been created via "yarn link". Otherwise, we
-      // assume it's a link:-managed dependency, and overwrite it as usual.
-      const linkTargets = new Map();
-
-      let linkedModules;
-      try {
-        linkedModules = yield (_fs || _load_fs()).readdir(_this3.config.linkFolder);
-      } catch (err) {
-        if (err.code === 'ENOENT') {
-          linkedModules = [];
-        } else {
-          throw err;
-        }
-      }
-
-      // TODO: Consolidate this logic with `this.config.linkedModules` logic
-      for (var _iterator10 = linkedModules, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-        var _ref15;
-
-        if (_isArray10) {
-          if (_i10 >= _iterator10.length) break;
-          _ref15 = _iterator10[_i10++];
-        } else {
-          _i10 = _iterator10.next();
-          if (_i10.done) break;
-          _ref15 = _i10.value;
-        }
-
-        const entry = _ref15;
-
-        const entryPath = path.join(_this3.config.linkFolder, entry);
-        const stat = yield (_fs || _load_fs()).lstat(entryPath);
-
-        if (stat.isSymbolicLink()) {
-          try {
-            const entryTarget = yield (_fs || _load_fs()).realpath(entryPath);
-            linkTargets.set(entry, entryTarget);
-          } catch (err) {
-            _this3.reporter.warn(_this3.reporter.lang('linkTargetMissing', entry));
-            yield (_fs || _load_fs()).unlink(entryPath);
-          }
-        } else if (stat.isDirectory() && entry[0] === '@') {
-          // if the entry is directory beginning with '@', then we're dealing with a package scope, which
-          // means we must iterate inside to retrieve the package names it contains
-          const scopeName = entry;
-
-          for (var _iterator18 = yield (_fs || _load_fs()).readdir(entryPath), _isArray18 = Array.isArray(_iterator18), _i18 = 0, _iterator18 = _isArray18 ? _iterator18 : _iterator18[Symbol.iterator]();;) {
-            var _ref27;
-
-            if (_isArray18) {
-              if (_i18 >= _iterator18.length) break;
-              _ref27 = _iterator18[_i18++];
-            } else {
-              _i18 = _iterator18.next();
-              if (_i18.done) break;
-              _ref27 = _i18.value;
-            }
-
-            const entry2 = _ref27;
-
-            const entryPath2 = path.join(entryPath, entry2);
-            const stat2 = yield (_fs || _load_fs()).lstat(entryPath2);
-
-            if (stat2.isSymbolicLink()) {
-              const packageName = `${scopeName}/${entry2}`;
-              try {
-                const entryTarget = yield (_fs || _load_fs()).realpath(entryPath2);
-                linkTargets.set(packageName, entryTarget);
-              } catch (err) {
-                _this3.reporter.warn(_this3.reporter.lang('linkTargetMissing', packageName));
-                yield (_fs || _load_fs()).unlink(entryPath2);
-              }
-            }
-          }
-        }
-      }
-
-      for (var _iterator11 = possibleExtraneous, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-        var _ref16;
-
-        if (_isArray11) {
-          if (_i11 >= _iterator11.length) break;
-          _ref16 = _iterator11[_i11++];
-        } else {
-          _i11 = _iterator11.next();
-          if (_i11.done) break;
-          _ref16 = _i11.value;
-        }
-
-        const loc = _ref16;
-
-        let packageName = path.basename(loc);
-        const scopeName = path.basename(path.dirname(loc));
-
-        if (scopeName[0] === `@`) {
-          packageName = `${scopeName}/${packageName}`;
-        }
-
-        if ((yield (_fs || _load_fs()).lstat(loc)).isSymbolicLink() && linkTargets.has(packageName) && linkTargets.get(packageName) === (yield (_fs || _load_fs()).realpath(loc))) {
-          possibleExtraneous.delete(loc);
-          copyQueue.delete(loc);
-        }
-      }
-
-      //
-      let tick;
-      yield (_fs || _load_fs()).copyBulk(Array.from(copyQueue.values()), _this3.reporter, {
-        possibleExtraneous,
-        artifactFiles,
-
-        ignoreBasenames: [(_constants || _load_constants()).METADATA_FILENAME, (_constants || _load_constants()).TARBALL_FILENAME, '.bin'],
-
-        onStart: function onStart(num) {
-          tick = _this3.reporter.progress(num);
-        },
-
-        onProgress(src) {
-          if (tick) {
-            tick();
-          }
-        }
-      });
-
-      yield (_fs || _load_fs()).hardlinkBulk(Array.from(hardlinkQueue.values()), _this3.reporter, {
-        possibleExtraneous,
-        artifactFiles,
-
-        onStart: function onStart(num) {
-          tick = _this3.reporter.progress(num);
-        },
-
-        onProgress(src) {
-          if (tick) {
-            tick();
-          }
-        }
-      });
-
-      // remove all extraneous files that weren't in the tree
-      for (var _iterator12 = possibleExtraneous, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-        var _ref17;
-
-        if (_isArray12) {
-          if (_i12 >= _iterator12.length) break;
-          _ref17 = _iterator12[_i12++];
-        } else {
-          _i12 = _iterator12.next();
-          if (_i12.done) break;
-          _ref17 = _i12.value;
-        }
-
-        const loc = _ref17;
-
-        _this3.reporter.verbose(_this3.reporter.lang('verboseFileRemoveExtraneous', loc));
-        yield (_fs || _load_fs()).unlink(loc);
-      }
-
-      // remove any empty scoped directories
-      for (var _iterator13 = scopedPaths, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : _iterator13[Symbol.iterator]();;) {
-        var _ref18;
-
-        if (_isArray13) {
-          if (_i13 >= _iterator13.length) break;
-          _ref18 = _iterator13[_i13++];
-        } else {
-          _i13 = _iterator13.next();
-          if (_i13.done) break;
-          _ref18 = _i13.value;
-        }
-
-        const scopedPath = _ref18;
-
-        const files = yield (_fs || _load_fs()).readdir(scopedPath);
-        if (files.length === 0) {
-          yield (_fs || _load_fs()).unlink(scopedPath);
-        }
-      }
-
-      // create binary links
-      if (_this3.config.getOption('bin-links') && _this3.config.binLinks !== false) {
-        const topLevelDependencies = _this3.determineTopLevelBinLinkOrder(flatTree);
-        const tickBin = _this3.reporter.progress(flatTree.length + topLevelDependencies.length);
-
-        // create links in transient dependencies
-        yield (_promise || _load_promise()).queue(flatTree, (() => {
-          var _ref19 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ([dest, { pkg, isNohoist, parts }]) {
-            if (pkg._reference && pkg._reference.locations.length && !pkg._reference.isPlugnplay) {
-              const binLoc = path.join(dest, _this3.config.getFolder(pkg));
-              yield _this3.linkBinDependencies(pkg, binLoc);
-              if (isNohoist) {
-                // if nohoist, we need to override the binLink to point to the local destination
-                const parentBinLoc = _this3.getParentBinLoc(parts, flatTree);
-                yield _this3.linkSelfDependencies(pkg, dest, parentBinLoc, true);
-              }
-              tickBin();
-            }
-            tickBin();
-          });
-
-          return function (_x4) {
-            return _ref19.apply(this, arguments);
-          };
-        })(), linkBinConcurrency);
-
-        // create links at top level for all dependencies.
-        yield (_promise || _load_promise()).queue(topLevelDependencies, (() => {
-          var _ref20 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ([dest, { pkg }]) {
-            if (pkg._reference && pkg._reference.locations.length && !pkg._reference.isPlugnplay && pkg.bin && Object.keys(pkg.bin).length) {
-              let binLoc;
-              if (_this3.config.modulesFolder) {
-                binLoc = path.join(_this3.config.modulesFolder);
-              } else {
-                binLoc = path.join(_this3.config.lockfileFolder, _this3.config.getFolder(pkg));
-              }
-              yield _this3.linkSelfDependencies(pkg, dest, binLoc);
-            }
-            tickBin();
-          });
-
-          return function (_x5) {
-            return _ref20.apply(this, arguments);
-          };
-        })(), linkBinConcurrency);
-      }
-
-      for (var _iterator14 = flatTree, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : _iterator14[Symbol.iterator]();;) {
-        var _ref22;
-
-        if (_isArray14) {
-          if (_i14 >= _iterator14.length) break;
-          _ref22 = _iterator14[_i14++];
-        } else {
-          _i14 = _iterator14.next();
-          if (_i14.done) break;
-          _ref22 = _i14.value;
-        }
-
-        const _ref21 = _ref22;
-        const pkg = _ref21[1].pkg;
-
-        yield _this3._warnForMissingBundledDependencies(pkg);
-      }
-    })();
-  }
-
-  _buildTreeHash(flatTree) {
-    const hash = new Map();
-    for (var _iterator19 = flatTree, _isArray19 = Array.isArray(_iterator19), _i19 = 0, _iterator19 = _isArray19 ? _iterator19 : _iterator19[Symbol.iterator]();;) {
-      var _ref29;
-
-      if (_isArray19) {
-        if (_i19 >= _iterator19.length) break;
-        _ref29 = _iterator19[_i19++];
-      } else {
-        _i19 = _iterator19.next();
-        if (_i19.done) break;
-        _ref29 = _i19.value;
-      }
-
-      const _ref28 = _ref29;
-      const dest = _ref28[0];
-      const hoistManifest = _ref28[1];
-
-      const key = hoistManifest.parts.join('#');
-      hash.set(key, [dest, hoistManifest]);
-    }
-    this._treeHash = hash;
-    return hash;
-  }
-
-  getParentBinLoc(parts, flatTree) {
-    const hash = this._treeHash || this._buildTreeHash(flatTree);
-    const parent = parts.slice(0, -1).join('#');
-    const tuple = hash.get(parent);
-    if (!tuple) {
-      throw new Error(`failed to get parent '${parent}' binLoc`);
-    }
-    const dest = tuple[0],
-          hoistManifest = tuple[1];
-
-    const parentBinLoc = path.join(dest, this.config.getFolder(hoistManifest.pkg));
-
-    return parentBinLoc;
-  }
-
-  determineTopLevelBinLinkOrder(flatTree) {
-    const linksToCreate = new Map();
-    for (var _iterator20 = flatTree, _isArray20 = Array.isArray(_iterator20), _i20 = 0, _iterator20 = _isArray20 ? _iterator20 : _iterator20[Symbol.iterator]();;) {
-      var _ref31;
-
-      if (_isArray20) {
-        if (_i20 >= _iterator20.length) break;
-        _ref31 = _iterator20[_i20++];
-      } else {
-        _i20 = _iterator20.next();
-        if (_i20.done) break;
-        _ref31 = _i20.value;
-      }
-
-      const _ref30 = _ref31;
-      const dest = _ref30[0];
-      const hoistManifest = _ref30[1];
-      const pkg = hoistManifest.pkg,
-            isDirectRequire = hoistManifest.isDirectRequire,
-            isNohoist = hoistManifest.isNohoist,
-            isShallow = hoistManifest.isShallow;
-      const name = pkg.name;
-
-      // nohoist and shallow packages should not be linked at topLevel bin
-
-      if (!isNohoist && !isShallow && (isDirectRequire || this.topLevelBinLinking && !linksToCreate.has(name))) {
-        linksToCreate.set(name, [dest, hoistManifest]);
-      }
-    }
-
-    // Sort the array so that direct dependencies will be linked last.
-    // Bin links are overwritten if they already exist, so this will cause direct deps to take precedence.
-    // If someone finds this to be incorrect later, you could also consider sorting descending by
-    //   `linkToCreate.level` which is the dependency tree depth. Direct deps will have level 0 and transitive
-    //   deps will have level > 0.
-    const transientBins = [];
-    const topLevelBins = [];
-    for (var _iterator21 = Array.from(linksToCreate.values()), _isArray21 = Array.isArray(_iterator21), _i21 = 0, _iterator21 = _isArray21 ? _iterator21 : _iterator21[Symbol.iterator]();;) {
-      var _ref32;
-
-      if (_isArray21) {
-        if (_i21 >= _iterator21.length) break;
-        _ref32 = _iterator21[_i21++];
-      } else {
-        _i21 = _iterator21.next();
-        if (_i21.done) break;
-        _ref32 = _i21.value;
-      }
-
-      const linkToCreate = _ref32;
-
-      if (linkToCreate[1].isDirectRequire) {
-        topLevelBins.push(linkToCreate);
-      } else {
-        transientBins.push(linkToCreate);
-      }
-    }
-    return [...transientBins, ...topLevelBins];
-  }
-
-  resolvePeerModules() {
-    for (var _iterator22 = this.resolver.getManifests(), _isArray22 = Array.isArray(_iterator22), _i22 = 0, _iterator22 = _isArray22 ? _iterator22 : _iterator22[Symbol.iterator]();;) {
-      var _ref33;
-
-      if (_isArray22) {
-        if (_i22 >= _iterator22.length) break;
-        _ref33 = _iterator22[_i22++];
-      } else {
-        _i22 = _iterator22.next();
-        if (_i22.done) break;
-        _ref33 = _i22.value;
-      }
-
-      const pkg = _ref33;
-
-      const peerDeps = pkg.peerDependencies;
-      const peerDepsMeta = pkg.peerDependenciesMeta;
-
-      if (!peerDeps) {
-        continue;
-      }
-
-      const ref = pkg._reference;
-      invariant(ref, 'Package reference is missing');
-
-      // TODO: We are taking the "shortest" ref tree but there may be multiple ref trees with the same length
-      const refTree = ref.requests.map(req => req.parentNames).sort((arr1, arr2) => arr1.length - arr2.length)[0];
-
-      const getLevelDistance = pkgRef => {
-        let minDistance = Infinity;
-        for (var _iterator23 = pkgRef.requests, _isArray23 = Array.isArray(_iterator23), _i23 = 0, _iterator23 = _isArray23 ? _iterator23 : _iterator23[Symbol.iterator]();;) {
-          var _ref34;
-
-          if (_isArray23) {
-            if (_i23 >= _iterator23.length) break;
-            _ref34 = _iterator23[_i23++];
-          } else {
-            _i23 = _iterator23.next();
-            if (_i23.done) break;
-            _ref34 = _i23.value;
-          }
-
-          const req = _ref34;
-
-          const distance = refTree.length - req.parentNames.length;
-
-          if (distance >= 0 && distance < minDistance && req.parentNames.every((name, idx) => name === refTree[idx])) {
-            minDistance = distance;
-          }
-        }
-
-        return minDistance;
-      };
-
-      for (const peerDepName in peerDeps) {
-        const range = peerDeps[peerDepName];
-        const meta = peerDepsMeta && peerDepsMeta[peerDepName];
-
-        const isOptional = !!(meta && meta.optional);
-
-        const peerPkgs = this.resolver.getAllInfoForPackageName(peerDepName);
-
-        let peerError = 'unmetPeer';
-        let resolvedLevelDistance = Infinity;
-        let resolvedPeerPkg;
-        for (var _iterator24 = peerPkgs, _isArray24 = Array.isArray(_iterator24), _i24 = 0, _iterator24 = _isArray24 ? _iterator24 : _iterator24[Symbol.iterator]();;) {
-          var _ref35;
-
-          if (_isArray24) {
-            if (_i24 >= _iterator24.length) break;
-            _ref35 = _iterator24[_i24++];
-          } else {
-            _i24 = _iterator24.next();
-            if (_i24.done) break;
-            _ref35 = _i24.value;
-          }
-
-          const peerPkg = _ref35;
-
-          const peerPkgRef = peerPkg._reference;
-          if (!(peerPkgRef && peerPkgRef.patterns)) {
-            continue;
-          }
-          const levelDistance = getLevelDistance(peerPkgRef);
-          if (isFinite(levelDistance) && levelDistance < resolvedLevelDistance) {
-            if (this._satisfiesPeerDependency(range, peerPkgRef.version)) {
-              resolvedLevelDistance = levelDistance;
-              resolvedPeerPkg = peerPkgRef;
-            } else {
-              peerError = 'incorrectPeer';
-            }
-          }
-        }
-
-        if (resolvedPeerPkg) {
-          ref.addDependencies(resolvedPeerPkg.patterns);
-          this.reporter.verbose(this.reporter.lang('selectedPeer', `${pkg.name}@${pkg.version}`, `${peerDepName}@${resolvedPeerPkg.version}`, resolvedPeerPkg.level));
-        } else if (!isOptional) {
-          this.reporter.warn(this.reporter.lang(peerError, `${refTree.join(' > ')} > ${pkg.name}@${pkg.version}`, `${peerDepName}@${range}`));
-        }
-      }
-    }
-  }
-
-  _satisfiesPeerDependency(range, version) {
-    return range === '*' || (0, (_semver || _load_semver()).satisfiesWithPrereleases)(version, range, this.config.looseSemver);
-  }
-
-  _warnForMissingBundledDependencies(pkg) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const ref = pkg._reference;
-      invariant(ref, 'missing package ref ' + pkg.name);
-
-      if (pkg.bundleDependencies) {
-        for (var _iterator25 = pkg.bundleDependencies, _isArray25 = Array.isArray(_iterator25), _i25 = 0, _iterator25 = _isArray25 ? _iterator25 : _iterator25[Symbol.iterator]();;) {
-          var _ref36;
-
-          if (_isArray25) {
-            if (_i25 >= _iterator25.length) break;
-            _ref36 = _iterator25[_i25++];
-          } else {
-            _i25 = _iterator25.next();
-            if (_i25.done) break;
-            _ref36 = _i25.value;
-          }
-
-          const depName = _ref36;
-
-          const locs = ref.locations.map(function (loc) {
-            return path.join(loc, _this4.config.getFolder(pkg), depName);
-          });
-          const locsExist = yield Promise.all(locs.map(function (loc) {
-            return (_fs || _load_fs()).exists(loc);
-          }));
-          if (locsExist.some(function (e) {
-            return !e;
-          })) {
-            //if any of the locs do not exist
-            const pkgHuman = `${pkg.name}@${pkg.version}`;
-            _this4.reporter.warn(_this4.reporter.lang('missingBundledDependency', pkgHuman, depName));
-          }
-        }
-      }
-    })();
-  }
-
-  _isUnplugged(pkg, ref) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // If an unplugged folder exists for the specified package, we simply use it
-      if (yield (_fs || _load_fs()).exists(_this5.config.generatePackageUnpluggedPath(ref))) {
-        return true;
-      }
-
-      // If the package has a postinstall script, we also unplug it (otherwise they would run into the cache)
-      if (!_this5.config.ignoreScripts && pkg.scripts && (pkg.scripts.preinstall || pkg.scripts.install || pkg.scripts.postinstall)) {
-        return true;
-      }
-
-      // Check whether the user explicitly requested for the package to be unplugged
-      return _this5.unplugged.some(function (patternToUnplug) {
-        var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(patternToUnplug);
-
-        const name = _normalizePattern.name,
-              range = _normalizePattern.range,
-              hasVersion = _normalizePattern.hasVersion;
-
-        const satisfiesSemver = hasVersion ? semver.satisfies(ref.version, range) : true;
-        return name === ref.name && satisfiesSemver;
-      });
-    })();
-  }
-
-  init(patterns, workspaceLayout, { linkDuplicates, ignoreOptional } = {}) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this6.resolvePeerModules();
-      yield _this6.copyModules(patterns, workspaceLayout, { linkDuplicates, ignoreOptional });
-
-      if (!_this6.config.plugnplayEnabled) {
-        yield (_fs || _load_fs()).unlink(`${_this6.config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`);
-      }
-    })();
-  }
-}
-exports.default = PackageLinker;
-
-/***/ }),
-/* 212 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.clearLine = clearLine;
-exports.toStartOfLine = toStartOfLine;
-exports.writeOnNthLine = writeOnNthLine;
-exports.clearNthLine = clearNthLine;
-
-var _tty;
-
-function _load_tty() {
-  return _tty = _interopRequireDefault(__webpack_require__(104));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const readline = __webpack_require__(197);
-
-var _require = __webpack_require__(30);
-
-const supportsColor = _require.supportsColor;
-
-
-const CLEAR_WHOLE_LINE = 0;
-const CLEAR_RIGHT_OF_CURSOR = 1;
-
-function clearLine(stdout) {
-  if (!supportsColor) {
-    if (stdout instanceof (_tty || _load_tty()).default.WriteStream) {
-      if (stdout.columns > 0) {
-        stdout.write(`\r${' '.repeat(stdout.columns - 1)}`);
-      }
-      stdout.write(`\r`);
-    }
-    return;
-  }
-
-  readline.clearLine(stdout, CLEAR_WHOLE_LINE);
-  readline.cursorTo(stdout, 0);
-}
-
-function toStartOfLine(stdout) {
-  if (!supportsColor) {
-    stdout.write('\r');
-    return;
-  }
-
-  readline.cursorTo(stdout, 0);
-}
-
-function writeOnNthLine(stdout, n, msg) {
-  if (!supportsColor) {
-    return;
-  }
-
-  if (n == 0) {
-    readline.cursorTo(stdout, 0);
-    stdout.write(msg);
-    readline.clearLine(stdout, CLEAR_RIGHT_OF_CURSOR);
-    return;
-  }
-  readline.cursorTo(stdout, 0);
-  readline.moveCursor(stdout, 0, -n);
-  stdout.write(msg);
-  readline.clearLine(stdout, CLEAR_RIGHT_OF_CURSOR);
-  readline.cursorTo(stdout, 0);
-  readline.moveCursor(stdout, 0, n);
-}
-
-function clearNthLine(stdout, n) {
-  if (!supportsColor) {
-    return;
-  }
-
-  if (n == 0) {
-    clearLine(stdout);
-    return;
-  }
-  readline.cursorTo(stdout, 0);
-  readline.moveCursor(stdout, 0, -n);
-  readline.clearLine(stdout, CLEAR_WHOLE_LINE);
-  readline.moveCursor(stdout, 0, n);
-}
-
-/***/ }),
-/* 213 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = _interopRequireDefault(__webpack_require__(108));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class JSONReporter extends (_baseReporter || _load_baseReporter()).default {
-  constructor(opts) {
-    super(opts);
-
-    this._activityId = 0;
-    this._progressId = 0;
-  }
-
-  _dump(type, data, error) {
-    let stdout = this.stdout;
-    if (error) {
-      stdout = this.stderr;
-    }
-    stdout.write(`${JSON.stringify({ type, data })}\n`);
-  }
-
-  _verbose(msg) {
-    this._dump('verbose', msg);
-  }
-
-  list(type, items, hints) {
-    this._dump('list', { type, items, hints });
-  }
-
-  tree(type, trees) {
-    this._dump('tree', { type, trees });
-  }
-
-  step(current, total, message) {
-    this._dump('step', { message, current, total });
-  }
-
-  inspect(value) {
-    this._dump('inspect', value);
-  }
-
-  footer(showPeakMemory) {
-    this._dump('finished', this.getTotalTime());
-  }
-
-  log(msg) {
-    this._dump('log', msg);
-  }
-
-  command(msg) {
-    this._dump('command', msg);
-  }
-
-  table(head, body) {
-    this._dump('table', { head, body });
-  }
-
-  success(msg) {
-    this._dump('success', msg);
-  }
-
-  error(msg) {
-    this._dump('error', msg, true);
-  }
-
-  warn(msg) {
-    this._dump('warning', msg, true);
-  }
-
-  info(msg) {
-    this._dump('info', msg);
-  }
-
-  activitySet(total, workers) {
-    if (!this.isTTY || this.noProgress) {
-      return super.activitySet(total, workers);
-    }
-
-    const id = this._activityId++;
-    this._dump('activitySetStart', { id, total, workers });
-
-    const spinners = [];
-    for (let i = 0; i < workers; i++) {
-      let current = 0;
-      let header = '';
-
-      spinners.push({
-        clear() {},
-        setPrefix(_current, _header) {
-          current = _current;
-          header = _header;
-        },
-        tick: msg => {
-          this._dump('activitySetTick', {
-            id,
-            header,
-            current,
-            worker: i,
-            message: msg
-          });
-        },
-        end() {}
-      });
-    }
-
-    return {
-      spinners,
-      end: () => {
-        this._dump('activitySetEnd', { id });
-      }
-    };
-  }
-
-  activity() {
-    return this._activity({});
-  }
-
-  _activity(data) {
-    if (!this.isTTY || this.noProgress) {
-      return {
-        tick() {},
-        end() {}
-      };
-    }
-
-    const id = this._activityId++;
-    this._dump('activityStart', (0, (_extends2 || _load_extends()).default)({ id }, data));
-
-    return {
-      tick: name => {
-        this._dump('activityTick', { id, name });
-      },
-
-      end: () => {
-        this._dump('activityEnd', { id });
-      }
-    };
-  }
-
-  progress(total) {
-    if (this.noProgress) {
-      return function () {
-        // noop
-      };
-    }
-
-    const id = this._progressId++;
-    let current = 0;
-    this._dump('progressStart', { id, total });
-
-    return () => {
-      current++;
-      this._dump('progressTick', { id, current });
-
-      if (current === total) {
-        this._dump('progressFinish', { id });
-      }
-    };
-  }
-
-  auditAction(recommendation) {
-    this._dump('auditAction', recommendation);
-  }
-
-  auditAdvisory(resolution, auditAdvisory) {
-    this._dump('auditAdvisory', { resolution, advisory: auditAdvisory });
-  }
-
-  auditSummary(auditMetadata) {
-    this._dump('auditSummary', auditMetadata);
-  }
-}
-exports.default = JSONReporter;
-
-/***/ }),
-/* 214 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.shouldUpdateLockfile = undefined;
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-var _minimatch;
-
-function _load_minimatch() {
-  return _minimatch = _interopRequireDefault(__webpack_require__(82));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-var _parsePackagePath;
-
-function _load_parsePackagePath() {
-  return _parsePackagePath = _interopRequireDefault(__webpack_require__(376));
-}
-
-var _parsePackagePath2;
-
-function _load_parsePackagePath2() {
-  return _parsePackagePath2 = __webpack_require__(376);
-}
-
-var _resolvers;
-
-function _load_resolvers() {
-  return _resolvers = __webpack_require__(78);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const DIRECTORY_SEPARATOR = '/';
-const GLOBAL_NESTED_DEP_PATTERN = '**/';
-
-class ResolutionMap {
-  constructor(config) {
-    this.resolutionsByPackage = (0, (_map || _load_map()).default)();
-    this.config = config;
-    this.reporter = config.reporter;
-    this.delayQueue = new Set();
-  }
-
-  init(resolutions = {}) {
-    for (const globPattern in resolutions) {
-      const info = this.parsePatternInfo(globPattern, resolutions[globPattern]);
-
-      if (info) {
-        const resolution = this.resolutionsByPackage[info.name] || [];
-        this.resolutionsByPackage[info.name] = [...resolution, info];
-      }
-    }
-  }
-
-  addToDelayQueue(req) {
-    this.delayQueue.add(req);
-  }
-
-  parsePatternInfo(globPattern, range) {
-    if (!(0, (_parsePackagePath2 || _load_parsePackagePath2()).isValidPackagePath)(globPattern)) {
-      this.reporter.warn(this.reporter.lang('invalidResolutionName', globPattern));
-      return null;
-    }
-
-    const directories = (0, (_parsePackagePath || _load_parsePackagePath()).default)(globPattern);
-    const name = directories.pop();
-
-    if (!(_semver || _load_semver()).default.validRange(range) && !(0, (_resolvers || _load_resolvers()).getExoticResolver)(range)) {
-      this.reporter.warn(this.reporter.lang('invalidResolutionVersion', range));
-      return null;
-    }
-
-    // For legacy support of resolutions, replace `name` with `**/name`
-    if (name === globPattern) {
-      globPattern = `${GLOBAL_NESTED_DEP_PATTERN}${name}`;
-    }
-
-    return {
-      name,
-      range,
-      globPattern,
-      pattern: `${name}@${range}`
-    };
-  }
-
-  find(reqPattern, parentNames) {
-    var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(reqPattern);
-
-    const name = _normalizePattern.name,
-          reqRange = _normalizePattern.range;
-
-    const resolutions = this.resolutionsByPackage[name];
-
-    if (!resolutions) {
-      return '';
-    }
-
-    const modulePath = [...parentNames, name].join(DIRECTORY_SEPARATOR);
-
-    var _ref = resolutions.find(({ globPattern }) => (0, (_minimatch || _load_minimatch()).default)(modulePath, globPattern)) || {};
-
-    const pattern = _ref.pattern,
-          range = _ref.range;
-
-
-    if (pattern) {
-      if ((_semver || _load_semver()).default.validRange(reqRange) && (_semver || _load_semver()).default.valid(range) && !(_semver || _load_semver()).default.satisfies(range, reqRange)) {
-        this.reporter.warn(this.reporter.lang('incompatibleResolutionVersion', pattern, reqPattern));
-      }
-    }
-
-    return pattern;
-  }
-}
-
-exports.default = ResolutionMap;
-const shouldUpdateLockfile = exports.shouldUpdateLockfile = (lockfileEntry, resolutionEntry) => {
-  if (!lockfileEntry || !resolutionEntry) {
-    return false;
-  }
-
-  return lockfileEntry.resolved !== resolutionEntry.remote.resolved;
-};
-
-/***/ }),
-/* 215 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.FILE_PROTOCOL_PREFIX = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _uuid;
-
-function _load_uuid() {
-  return _uuid = _interopRequireDefault(__webpack_require__(119));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = _interopRequireWildcard(__webpack_require__(18));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const FILE_PROTOCOL_PREFIX = exports.FILE_PROTOCOL_PREFIX = 'file:';
-
-class FileResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-    this.loc = (_misc || _load_misc()).removePrefix(fragment, FILE_PROTOCOL_PREFIX);
-  }
-
-  static isVersion(pattern) {
-    return super.isVersion.call(this, pattern) || this.prefixMatcher.test(pattern) || (_path || _load_path()).default.isAbsolute(pattern);
-  }
-
-  resolve() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let loc = _this.loc;
-      if (!(_path || _load_path()).default.isAbsolute(loc)) {
-        loc = (_path || _load_path()).default.resolve(_this.config.lockfileFolder, loc);
-      }
-
-      if (_this.config.linkFileDependencies) {
-        const registry = 'npm';
-        const manifest = { _uid: '', name: '', version: '0.0.0', _registry: registry };
-        manifest._remote = {
-          type: 'link',
-          registry,
-          hash: null,
-          reference: loc
-        };
-        manifest._uid = manifest.version;
-        return manifest;
-      }
-      if (!(yield (_fs || _load_fs()).exists(loc))) {
-        throw new (_errors || _load_errors()).MessageError(_this.reporter.lang('doesntExist', loc, _this.pattern.split('@')[0]));
-      }
-
-      const manifest = yield (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-        try {
-          return yield _this.config.readManifest(loc, _this.registry);
-        } catch (e) {
-          if (e.code === 'ENOENT') {
-            return {
-              // This is just the default, it can be overridden with key of dependencies
-              name: (_path || _load_path()).default.dirname(loc),
-              version: '0.0.0',
-              _uid: '0.0.0',
-              _registry: 'npm'
-            };
-          }
-
-          throw e;
-        }
-      })();
-      const registry = manifest._registry;
-      (0, (_invariant || _load_invariant()).default)(registry, 'expected registry');
-
-      manifest._remote = {
-        type: 'copy',
-        registry,
-        hash: `${(_uuid || _load_uuid()).default.v4()}-${new Date().getTime()}`,
-        reference: loc
-      };
-
-      manifest._uid = manifest.version;
-
-      return manifest;
-    })();
-  }
-}
-exports.default = FileResolver;
-FileResolver.protocol = 'file';
-FileResolver.prefixMatcher = /^\.{1,2}\//;
-
-/***/ }),
-/* 216 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.explodeGistFragment = explodeGistFragment;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _gitResolver;
-
-function _load_gitResolver() {
-  return _gitResolver = _interopRequireDefault(__webpack_require__(124));
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = _interopRequireWildcard(__webpack_require__(18));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function explodeGistFragment(fragment, reporter) {
-  fragment = (_misc || _load_misc()).removePrefix(fragment, 'gist:');
-
-  const parts = fragment.split('#');
-
-  if (parts.length <= 2) {
-    return {
-      id: parts[0],
-      hash: parts[1] || ''
-    };
-  } else {
-    throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidGistFragment', fragment));
-  }
-}
-
-class GistResolver extends (_exoticResolver || _load_exoticResolver()).default {
-
-  constructor(request, fragment) {
-    super(request, fragment);
-
-    var _explodeGistFragment = explodeGistFragment(fragment, this.reporter);
-
-    const id = _explodeGistFragment.id,
-          hash = _explodeGistFragment.hash;
-
-    this.id = id;
-    this.hash = hash;
-  }
-
-  resolve() {
-    return this.fork((_gitResolver || _load_gitResolver()).default, false, `https://gist.github.com/${this.id}.git#${this.hash}`);
-  }
-}
-exports.default = GistResolver;
-GistResolver.protocol = 'gist';
-
-/***/ }),
-/* 217 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _cache;
-
-function _load_cache() {
-  return _cache = __webpack_require__(355);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _registryResolver;
-
-function _load_registryResolver() {
-  return _registryResolver = _interopRequireDefault(__webpack_require__(575));
-}
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _packageNameUtils;
-
-function _load_packageNameUtils() {
-  return _packageNameUtils = __webpack_require__(222);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const inquirer = __webpack_require__(276);
-const tty = __webpack_require__(104);
-const path = __webpack_require__(0);
-const semver = __webpack_require__(22);
-const ssri = __webpack_require__(65);
-
-const NPM_REGISTRY_ID = 'npm';
-
-class NpmResolver extends (_registryResolver || _load_registryResolver()).default {
-
-  static findVersionInRegistryResponse(config, name, range, body, request) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (body.versions && Object.keys(body.versions).length === 0) {
-        throw new (_errors || _load_errors()).MessageError(config.reporter.lang('registryNoVersions', body.name));
-      }
-
-      if (!body['dist-tags'] || !body.versions) {
-        throw new (_errors || _load_errors()).MessageError(config.reporter.lang('malformedRegistryResponse', name));
-      }
-
-      if (range in body['dist-tags']) {
-        range = body['dist-tags'][range];
-      }
-
-      // If the latest tag in the registry satisfies the requested range, then use that.
-      // Otherwise we will fall back to semver maxSatisfying.
-      // This mimics logic in NPM. See issue #3560
-      const latestVersion = body['dist-tags'] ? body['dist-tags'].latest : undefined;
-      if (latestVersion && semver.satisfies(latestVersion, range)) {
-        return body.versions[latestVersion];
-      }
-
-      const satisfied = yield config.resolveConstraints(Object.keys(body.versions), range);
-      if (satisfied) {
-        return body.versions[satisfied];
-      } else if (request && !config.nonInteractive) {
-        if (request.resolver && request.resolver.activity) {
-          request.resolver.activity.end();
-        }
-        config.reporter.log(config.reporter.lang('couldntFindVersionThatMatchesRange', body.name, range));
-        let pageSize;
-        if (process.stdout instanceof tty.WriteStream) {
-          pageSize = process.stdout.rows - 2;
-        }
-        const response = yield inquirer.prompt([{
-          name: 'package',
-          type: 'list',
-          message: config.reporter.lang('chooseVersionFromList', body.name),
-          choices: semver.rsort(Object.keys(body.versions)),
-          pageSize
-        }]);
-        if (response && response.package) {
-          return body.versions[response.package];
-        }
-      }
-      throw new (_errors || _load_errors()).MessageError(config.reporter.lang('couldntFindVersionThatMatchesRange', body.name, range));
-    })();
-  }
-
-  resolveRequest(desiredVersion) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (_this.config.offline) {
-        const res = yield _this.resolveRequestOffline();
-        if (res != null) {
-          return res;
-        }
-      }
-
-      const escapedName = (_npmRegistry || _load_npmRegistry()).default.escapeName(_this.name);
-      const desiredRange = desiredVersion || _this.range;
-      const body = yield _this.config.registries.npm.request(escapedName);
-
-      if (body) {
-        return NpmResolver.findVersionInRegistryResponse(_this.config, escapedName, desiredRange, body, _this.request);
-      } else {
-        return null;
-      }
-    })();
-  }
-
-  resolveRequestOffline() {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const packageDirs = yield _this2.config.getCache('cachedPackages', function () {
-        return (0, (_cache || _load_cache()).getCachedPackagesDirs)(_this2.config, _this2.config.cacheFolder);
-      });
-
-      const versions = (0, (_map || _load_map()).default)();
-
-      for (var _iterator = packageDirs, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const dir = _ref;
-
-        // check if folder contains the registry prefix
-        if (dir.indexOf(`${NPM_REGISTRY_ID}-`) === -1) {
-          continue;
-        }
-
-        // read manifest and validate correct name
-        const pkg = yield _this2.config.readManifest(dir, NPM_REGISTRY_ID);
-        if (pkg.name !== _this2.name) {
-          continue;
-        }
-
-        // read package metadata
-        const metadata = yield _this2.config.readPackageMetadata(dir);
-        if (!metadata.remote) {
-          continue; // old yarn metadata
-        }
-
-        versions[pkg.version] = Object.assign({}, pkg, {
-          _remote: metadata.remote
-        });
-      }
-
-      const satisfied = yield _this2.config.resolveConstraints(Object.keys(versions), _this2.range);
-      if (satisfied) {
-        return versions[satisfied];
-      } else if (!_this2.config.preferOffline) {
-        throw new (_errors || _load_errors()).MessageError(_this2.reporter.lang('couldntFindPackageInCache', _this2.name, _this2.range, Object.keys(versions).join(', ')));
-      } else {
-        return null;
-      }
-    })();
-  }
-
-  cleanRegistry(url) {
-    if (this.config.getOption('registry') === (_constants || _load_constants()).YARN_REGISTRY) {
-      return url.replace((_constants || _load_constants()).NPM_REGISTRY_RE, (_constants || _load_constants()).YARN_REGISTRY);
-    } else {
-      return url;
-    }
-  }
-
-  resolve() {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // lockfile
-      const shrunk = _this3.request.getLocked('tarball');
-      if (shrunk) {
-        if (_this3.config.packBuiltPackages && shrunk.prebuilt2Variants && shrunk._remote) {
-          const prebuilt2Variants = shrunk.prebuilt2Variants;
-          const prebuilt2Name = (0, (_packageNameUtils || _load_packageNameUtils()).getPlatformSpecificPackageFilename)(shrunk);
-          const offlineMirrorPath = _this3.config.getOfflineMirrorPath();
-          if (prebuilt2Variants[prebuilt2Name] && offlineMirrorPath) {
-            const filename = path.join(offlineMirrorPath, 'prebuilt2', prebuilt2Name + '.tgz');
-            const _remote = shrunk._remote;
-
-            if (_remote && (yield (_fs || _load_fs()).exists(filename))) {
-              _remote.reference = `file:${filename}`;
-              _remote.hash = prebuilt2Variants[prebuilt2Name];
-              _remote.integrity = ssri.fromHex(_remote.hash, 'sha1').toString();
-            }
-          }
-        }
-      }
-      if (shrunk && shrunk._remote && (shrunk._remote.integrity || _this3.config.offline || !_this3.config.autoAddIntegrity)) {
-        // if the integrity field does not exist, we're not network-restricted, and the
-        // migration hasn't been disabled, it needs to be created
-        return shrunk;
-      }
-
-      const desiredVersion = shrunk && shrunk.version ? shrunk.version : null;
-      const info = yield _this3.resolveRequest(desiredVersion);
-      if (info == null) {
-        throw new (_errors || _load_errors()).MessageError(_this3.reporter.lang('packageNotFoundRegistry', _this3.name, NPM_REGISTRY_ID));
-      }
-
-      const deprecated = info.deprecated,
-            dist = info.dist;
-
-      if (shrunk && shrunk._remote) {
-        shrunk._remote.integrity = dist && dist.integrity ? ssri.parse(dist.integrity) : ssri.fromHex(dist && dist.shasum ? dist.shasum : '', 'sha1');
-        return shrunk;
-      }
-
-      if (typeof deprecated === 'string') {
-        let human = `${info.name}@${info.version}`;
-        const parentNames = _this3.request.parentNames;
-        if (parentNames.length) {
-          human = parentNames.concat(human).join(' > ');
-        }
-        _this3.reporter.warn(`${human}: ${deprecated}`);
-      }
-
-      if (dist != null && dist.tarball) {
-        info._remote = {
-          resolved: `${_this3.cleanRegistry(dist.tarball)}#${dist.shasum}`,
-          type: 'tarball',
-          reference: _this3.cleanRegistry(dist.tarball),
-          hash: dist.shasum,
-          integrity: dist.integrity ? ssri.parse(dist.integrity) : ssri.fromHex(dist.shasum, 'sha1'),
-          registry: NPM_REGISTRY_ID,
-          packageName: info.name
-        };
-      }
-
-      info._uid = info.version;
-
-      return info;
-    })();
-  }
-}
-exports.default = NpmResolver;
-NpmResolver.registry = NPM_REGISTRY_ID;
-
-/***/ }),
-/* 218 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.fileDatesEqual = exports.copyFile = exports.unlink = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-// We want to preserve file timestamps when copying a file, since yarn uses them to decide if a file has
-// changed compared to the cache.
-// There are some OS specific cases here:
-// * On linux, fs.copyFile does not preserve timestamps, but does on OSX and Win.
-// * On windows, you must open a file with write permissions to call `fs.futimes`.
-// * On OSX you can open with read permissions and still call `fs.futimes`.
-let fixTimes = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (fd, dest, data) {
-    const doOpen = fd === undefined;
-    let openfd = fd ? fd : -1;
-
-    if (disableTimestampCorrection === undefined) {
-      // if timestamps match already, no correction is needed.
-      // the need to correct timestamps varies based on OS and node versions.
-      const destStat = yield lstat(dest);
-      disableTimestampCorrection = fileDatesEqual(destStat.mtime, data.mtime);
-    }
-
-    if (disableTimestampCorrection) {
-      return;
-    }
-
-    if (doOpen) {
-      try {
-        openfd = yield open(dest, 'a', data.mode);
-      } catch (er) {
-        // file is likely read-only
-        try {
-          openfd = yield open(dest, 'r', data.mode);
-        } catch (err) {
-          // We can't even open this file for reading.
-          return;
-        }
-      }
-    }
-
-    try {
-      if (openfd) {
-        yield futimes(openfd, data.atime, data.mtime);
-      }
-    } catch (er) {
-      // If `futimes` throws an exception, we probably have a case of a read-only file on Windows.
-      // In this case we can just return. The incorrect timestamp will just cause that file to be recopied
-      // on subsequent installs, which will effect yarn performance but not break anything.
-    } finally {
-      if (doOpen && openfd) {
-        yield close(openfd);
-      }
-    }
-  });
-
-  return function fixTimes(_x7, _x8, _x9) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-// Compare file timestamps.
-// Some versions of Node on windows zero the milliseconds when utime is used.
-
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireDefault(__webpack_require__(5));
-}
-
-var _promise;
-
-function _load_promise() {
-  return _promise = __webpack_require__(50);
-}
-
-var _fs2;
-
-function _load_fs2() {
-  return _fs2 = __webpack_require__(4);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-let disableTimestampCorrection = undefined; // OS dependent. will be detected on first file copy.
-
-// This module serves as a wrapper for file operations that are inconsistant across node and OS versions.
-
-const readFileBuffer = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.readFile);
-const close = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.close);
-const lstat = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.lstat);
-const open = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.open);
-const futimes = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.futimes);
-
-const write = (0, (_promise || _load_promise()).promisify)((_fs || _load_fs()).default.write);
-
-const unlink = exports.unlink = (0, (_promise || _load_promise()).promisify)(__webpack_require__(307));
-
-/**
- * Unlinks the destination to force a recreation. This is needed on case-insensitive file systems
- * to force the correct naming when the filename has changed only in character-casing. (Jest -> jest).
- */
-const copyFile = exports.copyFile = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (data, cleanup) {
-    // $FlowFixMe: Flow doesn't currently support COPYFILE_FICLONE
-    const ficloneFlag = (_fs2 || _load_fs2()).constants.COPYFILE_FICLONE || 0;
-    try {
-      yield unlink(data.dest);
-      yield copyFilePoly(data.src, data.dest, ficloneFlag, data);
-    } finally {
-      if (cleanup) {
-        cleanup();
-      }
-    }
-  });
-
-  return function copyFile(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-// Node 8.5.0 introduced `fs.copyFile` which is much faster, so use that when available.
-// Otherwise we fall back to reading and writing files as buffers.
-const copyFilePoly = (src, dest, flags, data) => {
-  if ((_fs || _load_fs()).default.copyFile) {
-    return new Promise((resolve, reject) => (_fs || _load_fs()).default.copyFile(src, dest, flags, err => {
-      if (err) {
-        reject(err);
-      } else {
-        fixTimes(undefined, dest, data).then(() => resolve()).catch(ex => reject(ex));
-      }
-    }));
-  } else {
-    return copyWithBuffer(src, dest, flags, data);
-  }
-};
-
-const copyWithBuffer = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (src, dest, flags, data) {
-    // Use open -> write -> futimes -> close sequence to avoid opening the file twice:
-    // one with writeFile and one with utimes
-    const fd = yield open(dest, 'w', data.mode);
-    try {
-      const buffer = yield readFileBuffer(src);
-      yield write(fd, buffer, 0, buffer.length);
-      yield fixTimes(fd, dest, data);
-    } finally {
-      yield close(fd);
-    }
-  });
-
-  return function copyWithBuffer(_x3, _x4, _x5, _x6) {
-    return _ref2.apply(this, arguments);
-  };
-})();const fileDatesEqual = exports.fileDatesEqual = (a, b) => {
-  const aTime = a.getTime();
-  const bTime = b.getTime();
-
-  if (process.platform !== 'win32') {
-    return aTime === bTime;
-  }
-
-  // See https://github.com/nodejs/node/pull/12607
-  // Submillisecond times from stat and utimes are truncated on Windows,
-  // causing a file with mtime 8.0079998 and 8.0081144 to become 8.007 and 8.008
-  // and making it impossible to update these files to their correct timestamps.
-  if (Math.abs(aTime - bTime) <= 1) {
-    return true;
-  }
-
-  const aTimeSec = Math.floor(aTime / 1000);
-  const bTimeSec = Math.floor(bTime / 1000);
-
-  // See https://github.com/nodejs/node/issues/2069
-  // Some versions of Node on windows zero the milliseconds when utime is used
-  // So if any of the time has a milliseconds part of zero we suspect that the
-  // bug is present and compare only seconds.
-  if (aTime - aTimeSec * 1000 === 0 || bTime - bTimeSec * 1000 === 0) {
-    return aTimeSec === bTimeSec;
-  }
-
-  return aTime === bTime;
-};
-
-/***/ }),
-/* 219 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _string_decoder;
-
-function _load_string_decoder() {
-  return _string_decoder = __webpack_require__(333);
-}
-
-var _tarFs;
-
-function _load_tarFs() {
-  return _tarFs = _interopRequireDefault(__webpack_require__(193));
-}
-
-var _tarStream;
-
-function _load_tarStream() {
-  return _tarStream = _interopRequireDefault(__webpack_require__(460));
-}
-
-var _url;
-
-function _load_url() {
-  return _url = _interopRequireDefault(__webpack_require__(24));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = __webpack_require__(5);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _gitSpawn;
-
-function _load_gitSpawn() {
-  return _gitSpawn = __webpack_require__(373);
-}
-
-var _gitRefResolver;
-
-function _load_gitRefResolver() {
-  return _gitRefResolver = __webpack_require__(581);
-}
-
-var _crypto;
-
-function _load_crypto() {
-  return _crypto = _interopRequireWildcard(__webpack_require__(168));
-}
-
-var _fs2;
-
-function _load_fs2() {
-  return _fs2 = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const GIT_PROTOCOL_PREFIX = 'git+';
-
-const SSH_PROTOCOL = 'ssh:';
-const SCP_PATH_PREFIX = '/:';
-const FILE_PROTOCOL = 'file:';
-const GIT_VALID_REF_LINE_REGEXP = /^([a-fA-F0-9]+|ref)/;
-
-const validRef = line => {
-  return GIT_VALID_REF_LINE_REGEXP.exec(line);
-};
-
-const supportsArchiveCache = (0, (_map || _load_map()).default)({
-  'github.com': false // not support, doubt they will ever support it
-});
-
-const handleSpawnError = err => {
-  if (err instanceof (_errors || _load_errors()).ProcessSpawnError) {
-    throw err;
-  }
-};
-
-const SHORTHAND_SERVICES = (0, (_map || _load_map()).default)({
-  'github:': parsedUrl => (0, (_extends2 || _load_extends()).default)({}, parsedUrl, {
-    slashes: true,
-    auth: 'git',
-    protocol: SSH_PROTOCOL,
-    host: 'github.com',
-    hostname: 'github.com',
-    pathname: `/${parsedUrl.hostname}${parsedUrl.pathname}`
-  }),
-  'bitbucket:': parsedUrl => (0, (_extends2 || _load_extends()).default)({}, parsedUrl, {
-    slashes: true,
-    auth: 'git',
-    protocol: SSH_PROTOCOL,
-    host: 'bitbucket.com',
-    hostname: 'bitbucket.com',
-    pathname: `/${parsedUrl.hostname}${parsedUrl.pathname}`
-  })
-});
-
-class Git {
-  constructor(config, gitUrl, hash) {
-    this.supportsArchive = false;
-    this.fetched = false;
-    this.config = config;
-    this.reporter = config.reporter;
-    this.hash = hash;
-    this.ref = hash;
-    this.gitUrl = gitUrl;
-    this.cwd = this.config.getTemp((_crypto || _load_crypto()).hash(this.gitUrl.repository));
-  }
-
-  /**
-   * npm URLs contain a 'git+' scheme prefix, which is not understood by git.
-   * git "URLs" also allow an alternative scp-like syntax, so they're not standard URLs.
-   */
-  static npmUrlToGitUrl(npmUrl) {
-    npmUrl = (0, (_misc || _load_misc()).removePrefix)(npmUrl, GIT_PROTOCOL_PREFIX);
-
-    let parsed = (_url || _load_url()).default.parse(npmUrl);
-    const expander = parsed.protocol && SHORTHAND_SERVICES[parsed.protocol];
-
-    if (expander) {
-      parsed = expander(parsed);
-    }
-
-    // Special case in npm, where ssh:// prefix is stripped to pass scp-like syntax
-    // which in git works as remote path only if there are no slashes before ':'.
-    // See #3146.
-    if (parsed.protocol === SSH_PROTOCOL && parsed.hostname && parsed.path && parsed.path.startsWith(SCP_PATH_PREFIX) && parsed.port === null) {
-      const auth = parsed.auth ? parsed.auth + '@' : '';
-      const pathname = parsed.path.slice(SCP_PATH_PREFIX.length);
-      return {
-        hostname: parsed.hostname,
-        protocol: parsed.protocol,
-        repository: `${auth}${parsed.hostname}:${pathname}`
-      };
-    }
-
-    // git local repos are specified as `git+file:` and a filesystem path, not a url.
-    let repository;
-    if (parsed.protocol === FILE_PROTOCOL) {
-      repository = parsed.path;
-    } else {
-      repository = (_url || _load_url()).default.format((0, (_extends2 || _load_extends()).default)({}, parsed, { hash: '' }));
-    }
-
-    return {
-      hostname: parsed.hostname || null,
-      protocol: parsed.protocol || FILE_PROTOCOL,
-      repository: repository || ''
-    };
-  }
-
-  /**
-   * Check if the host specified in the input `gitUrl` has archive capability.
-   */
-
-  static hasArchiveCapability(ref) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const hostname = ref.hostname;
-      if (ref.protocol !== 'ssh:' || hostname == null) {
-        return false;
-      }
-
-      if (hostname in supportsArchiveCache) {
-        return supportsArchiveCache[hostname];
-      }
-
-      try {
-        yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', `--remote=${ref.repository}`, 'HEAD', Date.now() + '']);
-        throw new Error();
-      } catch (err) {
-        handleSpawnError(err);
-        const supports = err.message.indexOf('did not match any files') >= 0;
-        return supportsArchiveCache[hostname] = supports;
-      }
-    })();
-  }
-
-  /**
-   * Check if the input `target` is a 5-40 character hex commit hash.
-   */
-
-  static repoExists(ref) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const isLocal = ref.protocol === FILE_PROTOCOL;
-
-      try {
-        if (isLocal) {
-          yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['show-ref', '-t'], { cwd: ref.repository });
-        } else {
-          yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['ls-remote', '-t', ref.repository]);
-        }
-        return true;
-      } catch (err) {
-        handleSpawnError(err);
-        return false;
-      }
-    })();
-  }
-
-  static replaceProtocol(ref, protocol) {
-    return {
-      hostname: ref.hostname,
-      protocol,
-      repository: ref.repository.replace(/^(?:git|http):/, protocol)
-    };
-  }
-
-  /**
-   * Attempt to upgrade insecure protocols to secure protocol
-   */
-  static secureGitUrl(ref, hash, reporter) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if ((0, (_gitRefResolver || _load_gitRefResolver()).isCommitSha)(hash)) {
-        // this is cryptographically secure
-        return ref;
-      }
-
-      if (ref.protocol === 'git:') {
-        const secureUrl = Git.replaceProtocol(ref, 'https:');
-        if (yield Git.repoExists(secureUrl)) {
-          return secureUrl;
-        } else {
-          reporter.warn(reporter.lang('downloadGitWithoutCommit', ref.repository));
-          return ref;
-        }
-      }
-
-      if (ref.protocol === 'http:') {
-        const secureRef = Git.replaceProtocol(ref, 'https:');
-        if (yield Git.repoExists(secureRef)) {
-          return secureRef;
-        } else {
-          reporter.warn(reporter.lang('downloadHTTPWithoutCommit', ref.repository));
-          return ref;
-        }
-      }
-
-      return ref;
-    })();
-  }
-
-  /**
-   * Archive a repo to destination
-   */
-
-  archive(dest) {
-    if (this.supportsArchive) {
-      return this._archiveViaRemoteArchive(dest);
-    } else {
-      return this._archiveViaLocalFetched(dest);
-    }
-  }
-
-  _archiveViaRemoteArchive(dest) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const hashStream = new (_crypto || _load_crypto()).HashStream();
-      yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', `--remote=${_this.gitUrl.repository}`, _this.ref], {
-        process(proc, resolve, reject, done) {
-          const writeStream = (0, (_fs || _load_fs()).createWriteStream)(dest);
-          proc.on('error', reject);
-          writeStream.on('error', reject);
-          writeStream.on('end', done);
-          writeStream.on('open', function () {
-            proc.stdout.pipe(hashStream).pipe(writeStream);
-          });
-          writeStream.once('finish', done);
-        }
-      });
-      return hashStream.getHash();
-    })();
-  }
-
-  _archiveViaLocalFetched(dest) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const hashStream = new (_crypto || _load_crypto()).HashStream();
-      yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', _this2.hash], {
-        cwd: _this2.cwd,
-        process(proc, resolve, reject, done) {
-          const writeStream = (0, (_fs || _load_fs()).createWriteStream)(dest);
-          proc.on('error', reject);
-          writeStream.on('error', reject);
-          writeStream.on('open', function () {
-            proc.stdout.pipe(hashStream).pipe(writeStream);
-          });
-          writeStream.once('finish', done);
-        }
-      });
-      return hashStream.getHash();
-    })();
-  }
-
-  /**
-   * Clone a repo to the input `dest`. Use `git archive` if it's available, otherwise fall
-   * back to `git clone`.
-   */
-
-  clone(dest) {
-    if (this.supportsArchive) {
-      return this._cloneViaRemoteArchive(dest);
-    } else {
-      return this._cloneViaLocalFetched(dest);
-    }
-  }
-
-  _cloneViaRemoteArchive(dest) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', `--remote=${_this3.gitUrl.repository}`, _this3.ref], {
-        process(proc, update, reject, done) {
-          const extractor = (_tarFs || _load_tarFs()).default.extract(dest, {
-            dmode: 0o555, // all dirs should be readable
-            fmode: 0o444 // all files should be readable
-          });
-          extractor.on('error', reject);
-          extractor.on('finish', done);
-
-          proc.stdout.pipe(extractor);
-          proc.on('error', reject);
-        }
-      });
-    })();
-  }
-
-  _cloneViaLocalFetched(dest) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', _this4.hash], {
-        cwd: _this4.cwd,
-        process(proc, resolve, reject, done) {
-          const extractor = (_tarFs || _load_tarFs()).default.extract(dest, {
-            dmode: 0o555, // all dirs should be readable
-            fmode: 0o444 // all files should be readable
-          });
-
-          extractor.on('error', reject);
-          extractor.on('finish', done);
-
-          proc.stdout.pipe(extractor);
-        }
-      });
-    })();
-  }
-
-  /**
-   * Clone this repo.
-   */
-
-  fetch() {
-    var _this5 = this;
-
-    const gitUrl = this.gitUrl,
-          cwd = this.cwd;
-
-
-    return (_fs2 || _load_fs2()).lockQueue.push(gitUrl.repository, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (yield (_fs2 || _load_fs2()).exists(cwd)) {
-        yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['fetch', '--tags'], { cwd });
-        yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['pull'], { cwd });
-      } else {
-        yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['clone', gitUrl.repository, cwd]);
-      }
-
-      _this5.fetched = true;
-    }));
-  }
-
-  /**
-   * Fetch the file by cloning the repo and reading it.
-   */
-
-  getFile(filename) {
-    if (this.supportsArchive) {
-      return this._getFileFromArchive(filename);
-    } else {
-      return this._getFileFromClone(filename);
-    }
-  }
-
-  _getFileFromArchive(filename) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      try {
-        return yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['archive', `--remote=${_this6.gitUrl.repository}`, _this6.ref, filename], {
-          process(proc, update, reject, done) {
-            const parser = (_tarStream || _load_tarStream()).default.extract();
-
-            parser.on('error', reject);
-            parser.on('finish', done);
-
-            parser.on('entry', (header, stream, next) => {
-              const decoder = new (_string_decoder || _load_string_decoder()).StringDecoder('utf8');
-              let fileContent = '';
-
-              stream.on('data', buffer => {
-                fileContent += decoder.write(buffer);
-              });
-              stream.on('end', () => {
-                const remaining = decoder.end();
-                update(fileContent + remaining);
-                next();
-              });
-              stream.resume();
-            });
-
-            proc.stdout.pipe(parser);
-          }
-        });
-      } catch (err) {
-        if (err.message.indexOf('did not match any files') >= 0) {
-          return false;
-        } else {
-          throw err;
-        }
-      }
-    })();
-  }
-
-  _getFileFromClone(filename) {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      (0, (_invariant || _load_invariant()).default)(_this7.fetched, 'Repo not fetched');
-
-      try {
-        return yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['show', `${_this7.hash}:${filename}`], {
-          cwd: _this7.cwd
-        });
-      } catch (err) {
-        handleSpawnError(err);
-        // file doesn't exist
-        return false;
-      }
-    })();
-  }
-
-  /**
-   * Initialize the repo, find a secure url to use and
-   * set the ref to match an input `target`.
-   */
-  init() {
-    var _this8 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this8.gitUrl = yield Git.secureGitUrl(_this8.gitUrl, _this8.hash, _this8.reporter);
-
-      yield _this8.setRefRemote();
-
-      // check capabilities
-      if (_this8.ref !== '' && (yield Git.hasArchiveCapability(_this8.gitUrl))) {
-        _this8.supportsArchive = true;
-      } else {
-        yield _this8.fetch();
-      }
-
-      return _this8.hash;
-    })();
-  }
-
-  setRefRemote() {
-    var _this9 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const isLocal = _this9.gitUrl.protocol === FILE_PROTOCOL;
-      let stdout;
-
-      if (isLocal) {
-        stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['show-ref', '--tags', '--heads'], { cwd: _this9.gitUrl.repository });
-      } else {
-        stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['ls-remote', '--tags', '--heads', _this9.gitUrl.repository]);
-      }
-
-      const refs = (0, (_gitRefResolver || _load_gitRefResolver()).parseRefs)(stdout);
-      return _this9.setRef(refs);
-    })();
-  }
-
-  setRefHosted(hostedRefsList) {
-    const refs = (0, (_gitRefResolver || _load_gitRefResolver()).parseRefs)(hostedRefsList);
-    return this.setRef(refs);
-  }
-
-  /**
-   * Resolves the default branch of a remote repository (not always "master")
-   */
-
-  resolveDefaultBranch() {
-    var _this10 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const isLocal = _this10.gitUrl.protocol === FILE_PROTOCOL;
-
-      try {
-        let stdout;
-        if (isLocal) {
-          stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['show-ref', 'HEAD'], { cwd: _this10.gitUrl.repository });
-          const refs = (0, (_gitRefResolver || _load_gitRefResolver()).parseRefs)(stdout);
-          const sha = refs.values().next().value;
-          if (sha) {
-            return { sha, ref: undefined };
-          } else {
-            throw new Error('Unable to find SHA for git HEAD');
-          }
-        } else {
-          stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['ls-remote', '--symref', _this10.gitUrl.repository, 'HEAD']);
-          const lines = stdout.split('\n').filter(validRef);
-
-          var _lines$0$split = lines[0].split(/\s+/);
-
-          const ref = _lines$0$split[1];
-
-          var _lines$1$split = lines[1].split(/\s+/);
-
-          const sha = _lines$1$split[0];
-
-          return { sha, ref };
-        }
-      } catch (err) {
-        handleSpawnError(err);
-        // older versions of git don't support "--symref"
-        const stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['ls-remote', _this10.gitUrl.repository, 'HEAD']);
-        const lines = stdout.split('\n').filter(validRef);
-
-        var _lines$0$split2 = lines[0].split(/\s+/);
-
-        const sha = _lines$0$split2[0];
-
-        return { sha, ref: undefined };
-      }
-    })();
-  }
-
-  /**
-   * Resolve a git commit to it's 40-chars format and ensure it exists in the repository
-   * We need to use the 40-chars format to avoid multiple folders in the cache
-   */
-
-  resolveCommit(shaToResolve) {
-    var _this11 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      try {
-        yield _this11.fetch();
-        const revListArgs = ['rev-list', '-n', '1', '--no-abbrev-commit', '--format=oneline', shaToResolve];
-        const stdout = yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(revListArgs, { cwd: _this11.cwd });
-
-        var _stdout$split = stdout.split(/\s+/);
-
-        const sha = _stdout$split[0];
-
-        return { sha, ref: undefined };
-      } catch (err) {
-        handleSpawnError(err);
-        // assuming commit not found, let's try something else
-        return null;
-      }
-    })();
-  }
-
-  /**
-   * Resolves the input hash / ref / semver range to a valid commit sha
-   * If possible also resolves the sha to a valid ref in order to use "git archive"
-   */
-
-  setRef(refs) {
-    var _this12 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // get commit ref
-      const version = _this12.hash;
-
-
-      const resolvedResult = yield (0, (_gitRefResolver || _load_gitRefResolver()).resolveVersion)({
-        config: _this12.config,
-        git: _this12,
-        version,
-        refs
-      });
-      if (!resolvedResult) {
-        throw new (_errors || _load_errors()).MessageError(_this12.reporter.lang('couldntFindMatch', version, Array.from(refs.keys()).join(','), _this12.gitUrl.repository));
-      }
-
-      _this12.hash = resolvedResult.sha;
-      _this12.ref = resolvedResult.ref || '';
-      return _this12.hash;
-    })();
-  }
-}
-exports.default = Git;
-
-/***/ }),
-/* 220 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _resolveRelative;
-
-function _load_resolveRelative() {
-  return _resolveRelative = _interopRequireDefault(__webpack_require__(586));
-}
-
-var _validate;
-
-function _load_validate() {
-  return _validate = _interopRequireDefault(__webpack_require__(125));
-}
-
-var _fix;
-
-function _load_fix() {
-  return _fix = _interopRequireDefault(__webpack_require__(583));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-exports.default = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (info, moduleLoc, config, isRoot) {
-    // create human readable name
-    const name = info.name,
-          version = info.version;
-
-    let human;
-    if (typeof name === 'string') {
-      human = name;
-    }
-    if (human && typeof version === 'string' && version) {
-      human += `@${version}`;
-    }
-    if (isRoot && info._loc) {
-      human = path.relative(config.cwd, info._loc);
-    }
-
-    function warn(msg) {
-      if (human) {
-        msg = `${human}: ${msg}`;
-      }
-      config.reporter.warn(msg);
-    }
-
-    yield (0, (_fix || _load_fix()).default)(info, moduleLoc, config.reporter, warn, config.looseSemver);
-    (0, (_resolveRelative || _load_resolveRelative()).default)(info, moduleLoc, config.lockfileFolder);
-
-    if (config.cwd === config.globalFolder) {
-      return info;
-    }
-
-    try {
-      (0, (_validate || _load_validate()).default)(info, isRoot, config.reporter, warn);
-    } catch (err) {
-      if (human) {
-        err.message = `${human}: ${err.message}`;
-      }
-      throw err;
-    }
-
-    return info;
-  });
-
-  return function (_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-/***/ }),
-/* 221 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.isValidLicense = isValidLicense;
-exports.isValidBin = isValidBin;
-exports.stringifyPerson = stringifyPerson;
-exports.parsePerson = parsePerson;
-exports.normalizePerson = normalizePerson;
-exports.extractDescription = extractDescription;
-exports.extractRepositoryUrl = extractRepositoryUrl;
-
-
-const path = __webpack_require__(0);
-
-const validateLicense = __webpack_require__(959);
-
-const PARENT_PATH = /^\.\.([\\\/]|$)/;
-
-function isValidLicense(license) {
-  return !!license && validateLicense(license).validForNewPackages;
-}
-
-function isValidBin(bin) {
-  return !path.isAbsolute(bin) && !PARENT_PATH.test(path.normalize(bin));
-}
-
-function stringifyPerson(person) {
-  if (!person || typeof person !== 'object') {
-    return person;
-  }
-
-  const parts = [];
-  if (person.name) {
-    parts.push(person.name);
-  }
-
-  const email = person.email || person.mail;
-  if (typeof email === 'string') {
-    parts.push(`<${email}>`);
-  }
-
-  const url = person.url || person.web;
-  if (typeof url === 'string') {
-    parts.push(`(${url})`);
-  }
-
-  return parts.join(' ');
-}
-
-function parsePerson(person) {
-  if (typeof person !== 'string') {
-    return person;
-  }
-
-  // format: name (url) <email>
-  const obj = {};
-
-  let name = person.match(/^([^\(<]+)/);
-  if (name) {
-    name = name[0].trim();
-    if (name) {
-      obj.name = name;
-    }
-  }
-
-  const email = person.match(/<([^>]+)>/);
-  if (email) {
-    obj.email = email[1];
-  }
-
-  const url = person.match(/\(([^\)]+)\)/);
-  if (url) {
-    obj.url = url[1];
-  }
-
-  return obj;
-}
-
-function normalizePerson(person) {
-  return parsePerson(stringifyPerson(person));
-}
-
-function extractDescription(readme) {
-  if (typeof readme !== 'string' || readme === '') {
-    return undefined;
-  }
-
-  // split into lines
-  const lines = readme.trim().split('\n').map(line => line.trim());
-
-  // find the start of the first paragraph, ignore headings
-  let start = 0;
-  for (; start < lines.length; start++) {
-    const line = lines[start];
-    if (line && line.match(/^(#|$)/)) {
-      // line isn't empty and isn't a heading so this is the start of a paragraph
-      start++;
-      break;
-    }
-  }
-
-  // skip newlines from the header to the first line
-  while (start < lines.length && !lines[start]) {
-    start++;
-  }
-
-  // continue to the first non empty line
-  let end = start;
-  while (end < lines.length && lines[end]) {
-    end++;
-  }
-
-  return lines.slice(start, end).join(' ');
-}
-
-function extractRepositoryUrl(repository) {
-  if (!repository || typeof repository !== 'object') {
-    return repository;
-  }
-  return repository.url;
-}
-
-/***/ }),
-/* 222 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getPlatformSpecificPackageFilename = getPlatformSpecificPackageFilename;
-exports.getSystemParams = getSystemParams;
-function getPlatformSpecificPackageFilename(pkg) {
-  // TODO support hash for all subdependencies that have installs scripts
-  const normalizeScope = name => name[0] === '@' ? name.substr(1).replace('/', '-') : name;
-  const suffix = getSystemParams();
-  return `${normalizeScope(pkg.name)}-v${pkg.version}-${suffix}`;
-}
-
-function getSystemParams() {
-  // TODO support platform variant for linux
-  return `${process.platform}-${process.arch}-${process.versions.modules || ''}`;
-}
-
-/***/ }),
-/* 223 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.isFakeRoot = isFakeRoot;
-exports.isRootUser = isRootUser;
-function getUid() {
-  if (process.platform !== 'win32' && process.getuid) {
-    return process.getuid();
-  }
-  return null;
-}
-
-exports.default = isRootUser(getUid()) && !isFakeRoot();
-function isFakeRoot() {
-  return Boolean(process.env.FAKEROOTKEY);
-}
-
-function isRootUser(uid) {
-  return uid === 0;
-}
-
-/***/ }),
-/* 224 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.satisfiesWithPrereleases = satisfiesWithPrereleases;
-exports.diffWithUnstable = diffWithUnstable;
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/**
- * Returns whether the given semver version satisfies the given range. Notably this supports
- * prerelease versions so that "2.0.0-rc.0" satisfies the range ">=1.0.0", for example.
- */
-
-function satisfiesWithPrereleases(version, range, loose = false) {
-  let semverRange;
-  try {
-    // $FlowFixMe: Add a definition for the Range class
-    semverRange = new (_semver || _load_semver()).default.Range(range, loose);
-  } catch (err) {
-    return false;
-  }
-
-  if (!version) {
-    return false;
-  }
-  let semverVersion;
-  try {
-    semverVersion = new (_semver || _load_semver()).default.SemVer(version, semverRange.loose);
-  } catch (err) {
-    return false;
-  }
-
-  // A range has multiple sets of comparators. A version must satisfy all comparators in a set
-  // and at least one set to satisfy the range.
-  return semverRange.set.some(comparatorSet => {
-    // node-semver converts ~ and ^ ranges into pairs of >= and < ranges but the upper bounds don't
-    // properly exclude prerelease versions. For example, "^1.0.0" is converted to ">=1.0.0 <2.0.0",
-    // which includes "2.0.0-pre" since prerelease versions are lower than their non-prerelease
-    // counterparts. As a practical workaround we make upper-bound ranges exclude prereleases and
-    // convert "<2.0.0" to "<2.0.0-0", for example.
-    comparatorSet = comparatorSet.map(comparator => {
-      if (comparator.operator !== '<' || !comparator.value || comparator.semver.prerelease.length) {
-        return comparator;
-      }
-
-      // "0" is the lowest prerelease version
-      comparator.semver.inc('pre', 0);
-
-      const comparatorString = comparator.operator + comparator.semver.version;
-      // $FlowFixMe: Add a definition for the Comparator class
-      return new (_semver || _load_semver()).default.Comparator(comparatorString, comparator.loose);
-    });
-
-    return !comparatorSet.some(comparator => !comparator.test(semverVersion));
-  });
-}
-
-const PRE_RELEASES = {
-  major: 'premajor',
-  minor: 'preminor',
-  patch: 'prepatch'
-};
-
-/**
- * Returns the difference between two versions as a semantic string representation.
- * Similar to the `diff` method in node-semver, but it also accounts for unstable versions,
- * like 0.x.x or 0.0.x.
- */
-
-function diffWithUnstable(version1, version2) {
-  if ((_semver || _load_semver()).default.eq(version1, version2) === false) {
-    const v1 = (_semver || _load_semver()).default.parse(version1);
-    const v2 = (_semver || _load_semver()).default.parse(version2);
-
-    if (v1 != null && v2 != null) {
-      const isPreRelease = v1.prerelease.length > 0 || v2.prerelease.length > 0;
-      const preMajor = v1.major === 0 || v2.major === 0;
-      const preMinor = preMajor && (v1.minor === 0 || v2.minor === 0);
-
-      let diff = null;
-
-      if (v1.major !== v2.major) {
-        diff = 'major';
-      } else if (v1.minor !== v2.minor) {
-        if (preMajor) {
-          // If the major version number is zero (0.x.x), treat a change
-          // of the minor version number as a major change.
-          diff = 'major';
-        } else {
-          diff = 'minor';
-        }
-      } else if (v1.patch !== v2.patch) {
-        if (preMinor) {
-          // If the major & minor version numbers are zero (0.0.x), treat a change
-          // of the patch version number as a major change.
-          diff = 'major';
-        } else if (preMajor) {
-          // If the major version number is zero (0.x.x), treat a change
-          // of the patch version number as a minor change.
-          diff = 'minor';
-        } else {
-          diff = 'patch';
-        }
-      }
-
-      if (isPreRelease) {
-        if (diff != null) {
-          diff = PRE_RELEASES[diff];
-        } else {
-          diff = 'prerelease';
-        }
-      }
-
-      return diff;
-    }
-  }
-
-  return null;
-}
-
-/***/ }),
-/* 225 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getDataDir = getDataDir;
-exports.getCacheDir = getCacheDir;
-exports.getConfigDir = getConfigDir;
-const path = __webpack_require__(0);
-const userHome = __webpack_require__(67).default;
-
-const FALLBACK_CONFIG_DIR = path.join(userHome, '.config', 'yarn');
-const FALLBACK_CACHE_DIR = path.join(userHome, '.cache', 'yarn');
-
-function getDataDir() {
-  if (process.platform === 'win32') {
-    const WIN32_APPDATA_DIR = getLocalAppDataDir();
-    return WIN32_APPDATA_DIR == null ? FALLBACK_CONFIG_DIR : path.join(WIN32_APPDATA_DIR, 'Data');
-  } else if (process.env.XDG_DATA_HOME) {
-    return path.join(process.env.XDG_DATA_HOME, 'yarn');
-  } else {
-    // This could arguably be ~/Library/Application Support/Yarn on Macs,
-    // but that feels unintuitive for a cli tool
-
-    // Instead, use our prior fallback. Some day this could be
-    // path.join(userHome, '.local', 'share', 'yarn')
-    // or return path.join(WIN32_APPDATA_DIR, 'Data') on win32
-    return FALLBACK_CONFIG_DIR;
-  }
-}
-
-function getCacheDir() {
-  if (process.platform === 'win32') {
-    // process.env.TEMP also exists, but most apps put caches here
-    return path.join(getLocalAppDataDir() || path.join(userHome, 'AppData', 'Local', 'Yarn'), 'Cache');
-  } else if (process.env.XDG_CACHE_HOME) {
-    return path.join(process.env.XDG_CACHE_HOME, 'yarn');
-  } else if (process.platform === 'darwin') {
-    return path.join(userHome, 'Library', 'Caches', 'Yarn');
-  } else {
-    return FALLBACK_CACHE_DIR;
-  }
-}
-
-function getConfigDir() {
-  if (process.platform === 'win32') {
-    // Use our prior fallback. Some day this could be
-    // return path.join(WIN32_APPDATA_DIR, 'Config')
-    const WIN32_APPDATA_DIR = getLocalAppDataDir();
-    return WIN32_APPDATA_DIR == null ? FALLBACK_CONFIG_DIR : path.join(WIN32_APPDATA_DIR, 'Config');
-  } else if (process.env.XDG_CONFIG_HOME) {
-    return path.join(process.env.XDG_CONFIG_HOME, 'yarn');
-  } else {
-    return FALLBACK_CONFIG_DIR;
-  }
-}
-
-function getLocalAppDataDir() {
-  return process.env.LOCALAPPDATA ? path.join(process.env.LOCALAPPDATA, 'Yarn') : null;
-}
-
-/***/ }),
-/* 226 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.explodeHashedUrl = explodeHashedUrl;
-function explodeHashedUrl(url) {
-  const parts = url.split('#');
-
-  return {
-    hash: parts[1] || '',
-    url: parts[0]
-  };
-}
-
-/***/ }),
-/* 227 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = { "default": __webpack_require__(233), __esModule: true };
-
-/***/ }),
-/* 228 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = balanced;
-function balanced(a, b, str) {
-  if (a instanceof RegExp) a = maybeMatch(a, str);
-  if (b instanceof RegExp) b = maybeMatch(b, str);
-
-  var r = range(a, b, str);
-
-  return r && {
-    start: r[0],
-    end: r[1],
-    pre: str.slice(0, r[0]),
-    body: str.slice(r[0] + a.length, r[1]),
-    post: str.slice(r[1] + b.length)
-  };
-}
-
-function maybeMatch(reg, str) {
-  var m = str.match(reg);
-  return m ? m[0] : null;
-}
-
-balanced.range = range;
-function range(a, b, str) {
-  var begs, beg, left, right, result;
-  var ai = str.indexOf(a);
-  var bi = str.indexOf(b, ai + 1);
-  var i = ai;
-
-  if (ai >= 0 && bi > 0) {
-    begs = [];
-    left = str.length;
-
-    while (i >= 0 && !result) {
-      if (i == ai) {
-        begs.push(i);
-        ai = str.indexOf(a, i + 1);
-      } else if (begs.length == 1) {
-        result = [ begs.pop(), bi ];
-      } else {
-        beg = begs.pop();
-        if (beg < left) {
-          left = beg;
-          right = bi;
-        }
-
-        bi = str.indexOf(b, i + 1);
-      }
-
-      i = ai < bi && ai >= 0 ? ai : bi;
-    }
-
-    if (begs.length) {
-      result = [ left, right ];
-    }
-  }
-
-  return result;
-}
-
-
-/***/ }),
-/* 229 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var concatMap = __webpack_require__(232);
-var balanced = __webpack_require__(228);
-
-module.exports = expandTop;
-
-var escSlash = '\0SLASH'+Math.random()+'\0';
-var escOpen = '\0OPEN'+Math.random()+'\0';
-var escClose = '\0CLOSE'+Math.random()+'\0';
-var escComma = '\0COMMA'+Math.random()+'\0';
-var escPeriod = '\0PERIOD'+Math.random()+'\0';
-
-function numeric(str) {
-  return parseInt(str, 10) == str
-    ? parseInt(str, 10)
-    : str.charCodeAt(0);
-}
-
-function escapeBraces(str) {
-  return str.split('\\\\').join(escSlash)
-            .split('\\{').join(escOpen)
-            .split('\\}').join(escClose)
-            .split('\\,').join(escComma)
-            .split('\\.').join(escPeriod);
-}
-
-function unescapeBraces(str) {
-  return str.split(escSlash).join('\\')
-            .split(escOpen).join('{')
-            .split(escClose).join('}')
-            .split(escComma).join(',')
-            .split(escPeriod).join('.');
-}
-
-
-// Basically just str.split(","), but handling cases
-// where we have nested braced sections, which should be
-// treated as individual members, like {a,{b,c},d}
-function parseCommaParts(str) {
-  if (!str)
-    return [''];
-
-  var parts = [];
-  var m = balanced('{', '}', str);
-
-  if (!m)
-    return str.split(',');
-
-  var pre = m.pre;
-  var body = m.body;
-  var post = m.post;
-  var p = pre.split(',');
-
-  p[p.length-1] += '{' + body + '}';
-  var postParts = parseCommaParts(post);
-  if (post.length) {
-    p[p.length-1] += postParts.shift();
-    p.push.apply(p, postParts);
-  }
-
-  parts.push.apply(parts, p);
-
-  return parts;
-}
-
-function expandTop(str) {
-  if (!str)
-    return [];
-
-  // I don't know why Bash 4.3 does this, but it does.
-  // Anything starting with {} will have the first two bytes preserved
-  // but *only* at the top level, so {},a}b will not expand to anything,
-  // but a{},b}c will be expanded to [a}c,abc].
-  // One could argue that this is a bug in Bash, but since the goal of
-  // this module is to match Bash's rules, we escape a leading {}
-  if (str.substr(0, 2) === '{}') {
-    str = '\\{\\}' + str.substr(2);
-  }
-
-  return expand(escapeBraces(str), true).map(unescapeBraces);
-}
-
-function identity(e) {
-  return e;
-}
-
-function embrace(str) {
-  return '{' + str + '}';
-}
-function isPadded(el) {
-  return /^-?0\d/.test(el);
-}
-
-function lte(i, y) {
-  return i <= y;
-}
-function gte(i, y) {
-  return i >= y;
-}
-
-function expand(str, isTop) {
-  var expansions = [];
-
-  var m = balanced('{', '}', str);
-  if (!m || /\$$/.test(m.pre)) return [str];
-
-  var isNumericSequence = /^-?\d+\.\.-?\d+(?:\.\.-?\d+)?$/.test(m.body);
-  var isAlphaSequence = /^[a-zA-Z]\.\.[a-zA-Z](?:\.\.-?\d+)?$/.test(m.body);
-  var isSequence = isNumericSequence || isAlphaSequence;
-  var isOptions = m.body.indexOf(',') >= 0;
-  if (!isSequence && !isOptions) {
-    // {a},b}
-    if (m.post.match(/,.*\}/)) {
-      str = m.pre + '{' + m.body + escClose + m.post;
-      return expand(str);
-    }
-    return [str];
-  }
-
-  var n;
-  if (isSequence) {
-    n = m.body.split(/\.\./);
-  } else {
-    n = parseCommaParts(m.body);
-    if (n.length === 1) {
-      // x{{a,b}}y ==> x{a}y x{b}y
-      n = expand(n[0], false).map(embrace);
-      if (n.length === 1) {
-        var post = m.post.length
-          ? expand(m.post, false)
-          : [''];
-        return post.map(function(p) {
-          return m.pre + n[0] + p;
-        });
-      }
-    }
-  }
-
-  // at this point, n is the parts, and we know it's not a comma set
-  // with a single entry.
-
-  // no need to expand pre, since it is guaranteed to be free of brace-sets
-  var pre = m.pre;
-  var post = m.post.length
-    ? expand(m.post, false)
-    : [''];
-
-  var N;
-
-  if (isSequence) {
-    var x = numeric(n[0]);
-    var y = numeric(n[1]);
-    var width = Math.max(n[0].length, n[1].length)
-    var incr = n.length == 3
-      ? Math.abs(numeric(n[2]))
-      : 1;
-    var test = lte;
-    var reverse = y < x;
-    if (reverse) {
-      incr *= -1;
-      test = gte;
-    }
-    var pad = n.some(isPadded);
-
-    N = [];
-
-    for (var i = x; test(i, y); i += incr) {
-      var c;
-      if (isAlphaSequence) {
-        c = String.fromCharCode(i);
-        if (c === '\\')
-          c = '';
-      } else {
-        c = String(i);
-        if (pad) {
-          var need = width - c.length;
-          if (need > 0) {
-            var z = new Array(need + 1).join('0');
-            if (i < 0)
-              c = '-' + z + c.slice(1);
-            else
-              c = z + c;
-          }
-        }
-      }
-      N.push(c);
-    }
-  } else {
-    N = concatMap(n, function(el) { return expand(el, false) });
-  }
-
-  for (var j = 0; j < N.length; j++) {
-    for (var k = 0; k < post.length; k++) {
-      var expansion = pre + N[j] + post[k];
-      if (!isTop || isSequence || expansion)
-        expansions.push(expansion);
-    }
-  }
-
-  return expansions;
-}
-
-
-
-/***/ }),
-/* 230 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function preserveCamelCase(str) {
-	let isLastCharLower = false;
-	let isLastCharUpper = false;
-	let isLastLastCharUpper = false;
-
-	for (let i = 0; i < str.length; i++) {
-		const c = str[i];
-
-		if (isLastCharLower && /[a-zA-Z]/.test(c) && c.toUpperCase() === c) {
-			str = str.substr(0, i) + '-' + str.substr(i);
-			isLastCharLower = false;
-			isLastLastCharUpper = isLastCharUpper;
-			isLastCharUpper = true;
-			i++;
-		} else if (isLastCharUpper && isLastLastCharUpper && /[a-zA-Z]/.test(c) && c.toLowerCase() === c) {
-			str = str.substr(0, i - 1) + '-' + str.substr(i - 1);
-			isLastLastCharUpper = isLastCharUpper;
-			isLastCharUpper = false;
-			isLastCharLower = true;
-		} else {
-			isLastCharLower = c.toLowerCase() === c;
-			isLastLastCharUpper = isLastCharUpper;
-			isLastCharUpper = c.toUpperCase() === c;
-		}
-	}
-
-	return str;
-}
-
-module.exports = function (str) {
-	if (arguments.length > 1) {
-		str = Array.from(arguments)
-			.map(x => x.trim())
-			.filter(x => x.length)
-			.join('-');
-	} else {
-		str = str.trim();
-	}
-
-	if (str.length === 0) {
-		return '';
-	}
-
-	if (str.length === 1) {
-		return str.toLowerCase();
-	}
-
-	if (/^[a-z0-9]+$/.test(str)) {
-		return str;
-	}
-
-	const hasUpperCase = str !== str.toLowerCase();
-
-	if (hasUpperCase) {
-		str = preserveCamelCase(str);
-	}
-
-	return str
-		.replace(/^[_.\- ]+/, '')
-		.toLowerCase()
-		.replace(/[_.\- ]+(\w|$)/g, (m, p1) => p1.toUpperCase());
-};
-
-
-/***/ }),
-/* 231 */
-/***/ (function(module, exports) {
-
-function Caseless (dict) {
-  this.dict = dict || {}
-}
-Caseless.prototype.set = function (name, value, clobber) {
-  if (typeof name === 'object') {
-    for (var i in name) {
-      this.set(i, name[i], value)
-    }
-  } else {
-    if (typeof clobber === 'undefined') clobber = true
-    var has = this.has(name)
-
-    if (!clobber && has) this.dict[has] = this.dict[has] + ',' + value
-    else this.dict[has || name] = value
-    return has
-  }
-}
-Caseless.prototype.has = function (name) {
-  var keys = Object.keys(this.dict)
-    , name = name.toLowerCase()
-    ;
-  for (var i=0;i<keys.length;i++) {
-    if (keys[i].toLowerCase() === name) return keys[i]
-  }
-  return false
-}
-Caseless.prototype.get = function (name) {
-  name = name.toLowerCase()
-  var result, _key
-  var headers = this.dict
-  Object.keys(headers).forEach(function (key) {
-    _key = key.toLowerCase()
-    if (name === _key) result = headers[key]
-  })
-  return result
-}
-Caseless.prototype.swap = function (name) {
-  var has = this.has(name)
-  if (has === name) return
-  if (!has) throw new Error('There is no header than matches "'+name+'"')
-  this.dict[name] = this.dict[has]
-  delete this.dict[has]
-}
-Caseless.prototype.del = function (name) {
-  var has = this.has(name)
-  return delete this.dict[has || name]
-}
-
-module.exports = function (dict) {return new Caseless(dict)}
-module.exports.httpify = function (resp, headers) {
-  var c = new Caseless(headers)
-  resp.setHeader = function (key, value, clobber) {
-    if (typeof value === 'undefined') return
-    return c.set(key, value, clobber)
-  }
-  resp.hasHeader = function (key) {
-    return c.has(key)
-  }
-  resp.getHeader = function (key) {
-    return c.get(key)
-  }
-  resp.removeHeader = function (key) {
-    return c.del(key)
-  }
-  resp.headers = c.dict
-  return c
-}
-
-
-/***/ }),
-/* 232 */
-/***/ (function(module, exports) {
-
-module.exports = function (xs, fn) {
-    var res = [];
-    for (var i = 0; i < xs.length; i++) {
-        var x = fn(xs[i], i);
-        if (isArray(x)) res.push.apply(res, x);
-        else res.push(x);
-    }
-    return res;
-};
-
-var isArray = Array.isArray || function (xs) {
-    return Object.prototype.toString.call(xs) === '[object Array]';
-};
-
-
-/***/ }),
-/* 233 */
-/***/ (function(module, exports, __webpack_require__) {
-
-__webpack_require__(259);
-__webpack_require__(261);
-__webpack_require__(264);
-__webpack_require__(260);
-__webpack_require__(262);
-__webpack_require__(263);
-module.exports = __webpack_require__(31).Promise;
-
-
-/***/ }),
-/* 234 */
-/***/ (function(module, exports) {
-
-module.exports = function () { /* empty */ };
-
-
-/***/ }),
-/* 235 */
-/***/ (function(module, exports) {
-
-module.exports = function (it, Constructor, name, forbiddenField) {
-  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {
-    throw TypeError(name + ': incorrect invocation!');
-  } return it;
-};
-
-
-/***/ }),
-/* 236 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// false -> Array#indexOf
-// true  -> Array#includes
-var toIObject = __webpack_require__(98);
-var toLength = __webpack_require__(136);
-var toAbsoluteIndex = __webpack_require__(254);
-module.exports = function (IS_INCLUDES) {
-  return function ($this, el, fromIndex) {
-    var O = toIObject($this);
-    var length = toLength(O.length);
-    var index = toAbsoluteIndex(fromIndex, length);
-    var value;
-    // Array#includes uses SameValueZero equality algorithm
-    // eslint-disable-next-line no-self-compare
-    if (IS_INCLUDES && el != el) while (length > index) {
-      value = O[index++];
-      // eslint-disable-next-line no-self-compare
-      if (value != value) return true;
-    // Array#indexOf ignores holes, Array#includes - not
-    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
-      if (O[index] === el) return IS_INCLUDES || index || 0;
-    } return !IS_INCLUDES && -1;
-  };
-};
-
-
-/***/ }),
-/* 237 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ctx = __webpack_require__(70);
-var call = __webpack_require__(241);
-var isArrayIter = __webpack_require__(240);
-var anObject = __webpack_require__(35);
-var toLength = __webpack_require__(136);
-var getIterFn = __webpack_require__(257);
-var BREAK = {};
-var RETURN = {};
-var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
-  var iterFn = ITERATOR ? function () { return iterable; } : getIterFn(iterable);
-  var f = ctx(fn, that, entries ? 2 : 1);
-  var index = 0;
-  var length, step, iterator, result;
-  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
-  // fast case for arrays with default iterator
-  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
-    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
-    if (result === BREAK || result === RETURN) return result;
-  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
-    result = call(iterator, f, step.value, entries);
-    if (result === BREAK || result === RETURN) return result;
-  }
-};
-exports.BREAK = BREAK;
-exports.RETURN = RETURN;
-
-
-/***/ }),
-/* 238 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = !__webpack_require__(51) && !__webpack_require__(112)(function () {
-  return Object.defineProperty(__webpack_require__(92)('div'), 'a', { get: function () { return 7; } }).a != 7;
-});
-
-
-/***/ }),
-/* 239 */
-/***/ (function(module, exports) {
-
-// fast apply, http://jsperf.lnkit.com/fast-apply/5
-module.exports = function (fn, args, that) {
-  var un = that === undefined;
-  switch (args.length) {
-    case 0: return un ? fn()
-                      : fn.call(that);
-    case 1: return un ? fn(args[0])
-                      : fn.call(that, args[0]);
-    case 2: return un ? fn(args[0], args[1])
-                      : fn.call(that, args[0], args[1]);
-    case 3: return un ? fn(args[0], args[1], args[2])
-                      : fn.call(that, args[0], args[1], args[2]);
-    case 4: return un ? fn(args[0], args[1], args[2], args[3])
-                      : fn.call(that, args[0], args[1], args[2], args[3]);
-  } return fn.apply(that, args);
-};
-
-
-/***/ }),
-/* 240 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// check on default Array iterator
-var Iterators = __webpack_require__(53);
-var ITERATOR = __webpack_require__(20)('iterator');
-var ArrayProto = Array.prototype;
-
-module.exports = function (it) {
-  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
-};
-
-
-/***/ }),
-/* 241 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// call something on iterator step with safe closing on error
-var anObject = __webpack_require__(35);
-module.exports = function (iterator, fn, value, entries) {
-  try {
-    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
-  // 7.4.6 IteratorClose(iterator, completion)
-  } catch (e) {
-    var ret = iterator['return'];
-    if (ret !== undefined) anObject(ret.call(iterator));
-    throw e;
-  }
-};
-
-
-/***/ }),
-/* 242 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var create = __webpack_require__(246);
-var descriptor = __webpack_require__(132);
-var setToStringTag = __webpack_require__(95);
-var IteratorPrototype = {};
-
-// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
-__webpack_require__(42)(IteratorPrototype, __webpack_require__(20)('iterator'), function () { return this; });
-
-module.exports = function (Constructor, NAME, next) {
-  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
-  setToStringTag(Constructor, NAME + ' Iterator');
-};
-
-
-/***/ }),
-/* 243 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ITERATOR = __webpack_require__(20)('iterator');
-var SAFE_CLOSING = false;
-
-try {
-  var riter = [7][ITERATOR]();
-  riter['return'] = function () { SAFE_CLOSING = true; };
-  // eslint-disable-next-line no-throw-literal
-  Array.from(riter, function () { throw 2; });
-} catch (e) { /* empty */ }
-
-module.exports = function (exec, skipClosing) {
-  if (!skipClosing && !SAFE_CLOSING) return false;
-  var safe = false;
-  try {
-    var arr = [7];
-    var iter = arr[ITERATOR]();
-    iter.next = function () { return { done: safe = true }; };
-    arr[ITERATOR] = function () { return iter; };
-    exec(arr);
-  } catch (e) { /* empty */ }
-  return safe;
-};
-
-
-/***/ }),
-/* 244 */
-/***/ (function(module, exports) {
-
-module.exports = function (done, value) {
-  return { value: value, done: !!done };
-};
-
-
-/***/ }),
-/* 245 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var global = __webpack_require__(17);
-var macrotask = __webpack_require__(135).set;
-var Observer = global.MutationObserver || global.WebKitMutationObserver;
-var process = global.process;
-var Promise = global.Promise;
-var isNode = __webpack_require__(69)(process) == 'process';
-
-module.exports = function () {
-  var head, last, notify;
-
-  var flush = function () {
-    var parent, fn;
-    if (isNode && (parent = process.domain)) parent.exit();
-    while (head) {
-      fn = head.fn;
-      head = head.next;
-      try {
-        fn();
-      } catch (e) {
-        if (head) notify();
-        else last = undefined;
-        throw e;
-      }
-    } last = undefined;
-    if (parent) parent.enter();
-  };
-
-  // Node.js
-  if (isNode) {
-    notify = function () {
-      process.nextTick(flush);
-    };
-  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
-  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
-    var toggle = true;
-    var node = document.createTextNode('');
-    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
-    notify = function () {
-      node.data = toggle = !toggle;
-    };
-  // environments with maybe non-completely correct, but existent Promise
-  } else if (Promise && Promise.resolve) {
-    // Promise.resolve without an argument throws an error in LG WebOS 2
-    var promise = Promise.resolve(undefined);
-    notify = function () {
-      promise.then(flush);
-    };
-  // for other environments - macrotask based on:
-  // - setImmediate
-  // - MessageChannel
-  // - window.postMessag
-  // - onreadystatechange
-  // - setTimeout
-  } else {
-    notify = function () {
-      // strange IE + webpack dev server bug - use .call(global)
-      macrotask.call(global, flush);
-    };
-  }
-
-  return function (fn) {
-    var task = { fn: fn, next: undefined };
-    if (last) last.next = task;
-    if (!head) {
-      head = task;
-      notify();
-    } last = task;
-  };
-};
-
-
-/***/ }),
-/* 246 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
-var anObject = __webpack_require__(35);
-var dPs = __webpack_require__(247);
-var enumBugKeys = __webpack_require__(127);
-var IE_PROTO = __webpack_require__(96)('IE_PROTO');
-var Empty = function () { /* empty */ };
-var PROTOTYPE = 'prototype';
-
-// Create object with fake `null` prototype: use iframe Object with cleared prototype
-var createDict = function () {
-  // Thrash, waste and sodomy: IE GC bug
-  var iframe = __webpack_require__(92)('iframe');
-  var i = enumBugKeys.length;
-  var lt = '<';
-  var gt = '>';
-  var iframeDocument;
-  iframe.style.display = 'none';
-  __webpack_require__(128).appendChild(iframe);
-  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
-  // createDict = iframe.contentWindow.Object;
-  // html.removeChild(iframe);
-  iframeDocument = iframe.contentWindow.document;
-  iframeDocument.open();
-  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
-  iframeDocument.close();
-  createDict = iframeDocument.F;
-  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
-  return createDict();
-};
-
-module.exports = Object.create || function create(O, Properties) {
-  var result;
-  if (O !== null) {
-    Empty[PROTOTYPE] = anObject(O);
-    result = new Empty();
-    Empty[PROTOTYPE] = null;
-    // add "__proto__" for Object.getPrototypeOf polyfill
-    result[IE_PROTO] = O;
-  } else result = createDict();
-  return Properties === undefined ? result : dPs(result, Properties);
-};
-
-
-/***/ }),
-/* 247 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var dP = __webpack_require__(72);
-var anObject = __webpack_require__(35);
-var getKeys = __webpack_require__(171);
-
-module.exports = __webpack_require__(51) ? Object.defineProperties : function defineProperties(O, Properties) {
-  anObject(O);
-  var keys = getKeys(Properties);
-  var length = keys.length;
-  var i = 0;
-  var P;
-  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
-  return O;
-};
-
-
-/***/ }),
-/* 248 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
-var has = __webpack_require__(71);
-var toObject = __webpack_require__(172);
-var IE_PROTO = __webpack_require__(96)('IE_PROTO');
-var ObjectProto = Object.prototype;
-
-module.exports = Object.getPrototypeOf || function (O) {
-  O = toObject(O);
-  if (has(O, IE_PROTO)) return O[IE_PROTO];
-  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
-    return O.constructor.prototype;
-  } return O instanceof Object ? ObjectProto : null;
-};
-
-
-/***/ }),
-/* 249 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var has = __webpack_require__(71);
-var toIObject = __webpack_require__(98);
-var arrayIndexOf = __webpack_require__(236)(false);
-var IE_PROTO = __webpack_require__(96)('IE_PROTO');
-
-module.exports = function (object, names) {
-  var O = toIObject(object);
-  var i = 0;
-  var result = [];
-  var key;
-  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
-  // Don't enum bug & hidden keys
-  while (names.length > i) if (has(O, key = names[i++])) {
-    ~arrayIndexOf(result, key) || result.push(key);
-  }
-  return result;
-};
-
-
-/***/ }),
-/* 250 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var hide = __webpack_require__(42);
-module.exports = function (target, src, safe) {
-  for (var key in src) {
-    if (safe && target[key]) target[key] = src[key];
-    else hide(target, key, src[key]);
-  } return target;
-};
-
-
-/***/ }),
-/* 251 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(42);
-
-
-/***/ }),
-/* 252 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var global = __webpack_require__(17);
-var core = __webpack_require__(31);
-var dP = __webpack_require__(72);
-var DESCRIPTORS = __webpack_require__(51);
-var SPECIES = __webpack_require__(20)('species');
-
-module.exports = function (KEY) {
-  var C = typeof core[KEY] == 'function' ? core[KEY] : global[KEY];
-  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
-    configurable: true,
-    get: function () { return this; }
-  });
-};
-
-
-/***/ }),
-/* 253 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var toInteger = __webpack_require__(97);
-var defined = __webpack_require__(91);
-// true  -> String#at
-// false -> String#codePointAt
-module.exports = function (TO_STRING) {
-  return function (that, pos) {
-    var s = String(defined(that));
-    var i = toInteger(pos);
-    var l = s.length;
-    var a, b;
-    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
-    a = s.charCodeAt(i);
-    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
-      ? TO_STRING ? s.charAt(i) : a
-      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
-  };
-};
-
-
-/***/ }),
-/* 254 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var toInteger = __webpack_require__(97);
-var max = Math.max;
-var min = Math.min;
-module.exports = function (index, length) {
-  index = toInteger(index);
-  return index < 0 ? max(index + length, 0) : min(index, length);
-};
-
-
-/***/ }),
-/* 255 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 7.1.1 ToPrimitive(input [, PreferredType])
-var isObject = __webpack_require__(52);
-// instead of the ES6 spec version, we didn't implement @@toPrimitive case
-// and the second argument - flag - preferred type is a string
-module.exports = function (it, S) {
-  if (!isObject(it)) return it;
-  var fn, val;
-  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
-  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
-  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
-  throw TypeError("Can't convert object to primitive value");
-};
-
-
-/***/ }),
-/* 256 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var global = __webpack_require__(17);
-var navigator = global.navigator;
-
-module.exports = navigator && navigator.userAgent || '';
-
-
-/***/ }),
-/* 257 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var classof = __webpack_require__(126);
-var ITERATOR = __webpack_require__(20)('iterator');
-var Iterators = __webpack_require__(53);
-module.exports = __webpack_require__(31).getIteratorMethod = function (it) {
-  if (it != undefined) return it[ITERATOR]
-    || it['@@iterator']
-    || Iterators[classof(it)];
-};
-
-
-/***/ }),
-/* 258 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var addToUnscopables = __webpack_require__(234);
-var step = __webpack_require__(244);
-var Iterators = __webpack_require__(53);
-var toIObject = __webpack_require__(98);
-
-// 22.1.3.4 Array.prototype.entries()
-// 22.1.3.13 Array.prototype.keys()
-// 22.1.3.29 Array.prototype.values()
-// 22.1.3.30 Array.prototype[@@iterator]()
-module.exports = __webpack_require__(129)(Array, 'Array', function (iterated, kind) {
-  this._t = toIObject(iterated); // target
-  this._i = 0;                   // next index
-  this._k = kind;                // kind
-// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
-}, function () {
-  var O = this._t;
-  var kind = this._k;
-  var index = this._i++;
-  if (!O || index >= O.length) {
-    this._t = undefined;
-    return step(1);
-  }
-  if (kind == 'keys') return step(0, index);
-  if (kind == 'values') return step(0, O[index]);
-  return step(0, [index, O[index]]);
-}, 'values');
-
-// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
-Iterators.Arguments = Iterators.Array;
-
-addToUnscopables('keys');
-addToUnscopables('values');
-addToUnscopables('entries');
-
-
-/***/ }),
-/* 259 */
-/***/ (function(module, exports) {
-
-
-
-/***/ }),
-/* 260 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var LIBRARY = __webpack_require__(93);
-var global = __webpack_require__(17);
-var ctx = __webpack_require__(70);
-var classof = __webpack_require__(126);
-var $export = __webpack_require__(60);
-var isObject = __webpack_require__(52);
-var aFunction = __webpack_require__(68);
-var anInstance = __webpack_require__(235);
-var forOf = __webpack_require__(237);
-var speciesConstructor = __webpack_require__(134);
-var task = __webpack_require__(135).set;
-var microtask = __webpack_require__(245)();
-var newPromiseCapabilityModule = __webpack_require__(94);
-var perform = __webpack_require__(130);
-var userAgent = __webpack_require__(256);
-var promiseResolve = __webpack_require__(131);
-var PROMISE = 'Promise';
-var TypeError = global.TypeError;
-var process = global.process;
-var versions = process && process.versions;
-var v8 = versions && versions.v8 || '';
-var $Promise = global[PROMISE];
-var isNode = classof(process) == 'process';
-var empty = function () { /* empty */ };
-var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
-var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
-
-var USE_NATIVE = !!function () {
-  try {
-    // correct subclassing with @@species support
-    var promise = $Promise.resolve(1);
-    var FakePromise = (promise.constructor = {})[__webpack_require__(20)('species')] = function (exec) {
-      exec(empty, empty);
-    };
-    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test
-    return (isNode || typeof PromiseRejectionEvent == 'function')
-      && promise.then(empty) instanceof FakePromise
-      // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
-      // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
-      // we can't detect it synchronously, so just check versions
-      && v8.indexOf('6.6') !== 0
-      && userAgent.indexOf('Chrome/66') === -1;
-  } catch (e) { /* empty */ }
-}();
-
-// helpers
-var isThenable = function (it) {
-  var then;
-  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
-};
-var notify = function (promise, isReject) {
-  if (promise._n) return;
-  promise._n = true;
-  var chain = promise._c;
-  microtask(function () {
-    var value = promise._v;
-    var ok = promise._s == 1;
-    var i = 0;
-    var run = function (reaction) {
-      var handler = ok ? reaction.ok : reaction.fail;
-      var resolve = reaction.resolve;
-      var reject = reaction.reject;
-      var domain = reaction.domain;
-      var result, then, exited;
-      try {
-        if (handler) {
-          if (!ok) {
-            if (promise._h == 2) onHandleUnhandled(promise);
-            promise._h = 1;
-          }
-          if (handler === true) result = value;
-          else {
-            if (domain) domain.enter();
-            result = handler(value); // may throw
-            if (domain) {
-              domain.exit();
-              exited = true;
-            }
-          }
-          if (result === reaction.promise) {
-            reject(TypeError('Promise-chain cycle'));
-          } else if (then = isThenable(result)) {
-            then.call(result, resolve, reject);
-          } else resolve(result);
-        } else reject(value);
-      } catch (e) {
-        if (domain && !exited) domain.exit();
-        reject(e);
-      }
-    };
-    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach
-    promise._c = [];
-    promise._n = false;
-    if (isReject && !promise._h) onUnhandled(promise);
-  });
-};
-var onUnhandled = function (promise) {
-  task.call(global, function () {
-    var value = promise._v;
-    var unhandled = isUnhandled(promise);
-    var result, handler, console;
-    if (unhandled) {
-      result = perform(function () {
-        if (isNode) {
-          process.emit('unhandledRejection', value, promise);
-        } else if (handler = global.onunhandledrejection) {
-          handler({ promise: promise, reason: value });
-        } else if ((console = global.console) && console.error) {
-          console.error('Unhandled promise rejection', value);
-        }
-      });
-      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
-      promise._h = isNode || isUnhandled(promise) ? 2 : 1;
-    } promise._a = undefined;
-    if (unhandled && result.e) throw result.v;
-  });
-};
-var isUnhandled = function (promise) {
-  return promise._h !== 1 && (promise._a || promise._c).length === 0;
-};
-var onHandleUnhandled = function (promise) {
-  task.call(global, function () {
-    var handler;
-    if (isNode) {
-      process.emit('rejectionHandled', promise);
-    } else if (handler = global.onrejectionhandled) {
-      handler({ promise: promise, reason: promise._v });
-    }
-  });
-};
-var $reject = function (value) {
-  var promise = this;
-  if (promise._d) return;
-  promise._d = true;
-  promise = promise._w || promise; // unwrap
-  promise._v = value;
-  promise._s = 2;
-  if (!promise._a) promise._a = promise._c.slice();
-  notify(promise, true);
-};
-var $resolve = function (value) {
-  var promise = this;
-  var then;
-  if (promise._d) return;
-  promise._d = true;
-  promise = promise._w || promise; // unwrap
-  try {
-    if (promise === value) throw TypeError("Promise can't be resolved itself");
-    if (then = isThenable(value)) {
-      microtask(function () {
-        var wrapper = { _w: promise, _d: false }; // wrap
-        try {
-          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
-        } catch (e) {
-          $reject.call(wrapper, e);
-        }
-      });
-    } else {
-      promise._v = value;
-      promise._s = 1;
-      notify(promise, false);
-    }
-  } catch (e) {
-    $reject.call({ _w: promise, _d: false }, e); // wrap
-  }
-};
-
-// constructor polyfill
-if (!USE_NATIVE) {
-  // 25.4.3.1 Promise(executor)
-  $Promise = function Promise(executor) {
-    anInstance(this, $Promise, PROMISE, '_h');
-    aFunction(executor);
-    Internal.call(this);
-    try {
-      executor(ctx($resolve, this, 1), ctx($reject, this, 1));
-    } catch (err) {
-      $reject.call(this, err);
-    }
-  };
-  // eslint-disable-next-line no-unused-vars
-  Internal = function Promise(executor) {
-    this._c = [];             // <- awaiting reactions
-    this._a = undefined;      // <- checked in isUnhandled reactions
-    this._s = 0;              // <- state
-    this._d = false;          // <- done
-    this._v = undefined;      // <- value
-    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled
-    this._n = false;          // <- notify
-  };
-  Internal.prototype = __webpack_require__(250)($Promise.prototype, {
-    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
-    then: function then(onFulfilled, onRejected) {
-      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
-      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
-      reaction.fail = typeof onRejected == 'function' && onRejected;
-      reaction.domain = isNode ? process.domain : undefined;
-      this._c.push(reaction);
-      if (this._a) this._a.push(reaction);
-      if (this._s) notify(this, false);
-      return reaction.promise;
-    },
-    // 25.4.5.1 Promise.prototype.catch(onRejected)
-    'catch': function (onRejected) {
-      return this.then(undefined, onRejected);
-    }
-  });
-  OwnPromiseCapability = function () {
-    var promise = new Internal();
-    this.promise = promise;
-    this.resolve = ctx($resolve, promise, 1);
-    this.reject = ctx($reject, promise, 1);
-  };
-  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {
-    return C === $Promise || C === Wrapper
-      ? new OwnPromiseCapability(C)
-      : newGenericPromiseCapability(C);
-  };
-}
-
-$export($export.G + $export.W + $export.F * !USE_NATIVE, { Promise: $Promise });
-__webpack_require__(95)($Promise, PROMISE);
-__webpack_require__(252)(PROMISE);
-Wrapper = __webpack_require__(31)[PROMISE];
-
-// statics
-$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
-  // 25.4.4.5 Promise.reject(r)
-  reject: function reject(r) {
-    var capability = newPromiseCapability(this);
-    var $$reject = capability.reject;
-    $$reject(r);
-    return capability.promise;
-  }
-});
-$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
-  // 25.4.4.6 Promise.resolve(x)
-  resolve: function resolve(x) {
-    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
-  }
-});
-$export($export.S + $export.F * !(USE_NATIVE && __webpack_require__(243)(function (iter) {
-  $Promise.all(iter)['catch'](empty);
-})), PROMISE, {
-  // 25.4.4.1 Promise.all(iterable)
-  all: function all(iterable) {
-    var C = this;
-    var capability = newPromiseCapability(C);
-    var resolve = capability.resolve;
-    var reject = capability.reject;
-    var result = perform(function () {
-      var values = [];
-      var index = 0;
-      var remaining = 1;
-      forOf(iterable, false, function (promise) {
-        var $index = index++;
-        var alreadyCalled = false;
-        values.push(undefined);
-        remaining++;
-        C.resolve(promise).then(function (value) {
-          if (alreadyCalled) return;
-          alreadyCalled = true;
-          values[$index] = value;
-          --remaining || resolve(values);
-        }, reject);
-      });
-      --remaining || resolve(values);
-    });
-    if (result.e) reject(result.v);
-    return capability.promise;
-  },
-  // 25.4.4.4 Promise.race(iterable)
-  race: function race(iterable) {
-    var C = this;
-    var capability = newPromiseCapability(C);
-    var reject = capability.reject;
-    var result = perform(function () {
-      forOf(iterable, false, function (promise) {
-        C.resolve(promise).then(capability.resolve, reject);
-      });
-    });
-    if (result.e) reject(result.v);
-    return capability.promise;
-  }
-});
-
-
-/***/ }),
-/* 261 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var $at = __webpack_require__(253)(true);
-
-// 21.1.3.27 String.prototype[@@iterator]()
-__webpack_require__(129)(String, 'String', function (iterated) {
-  this._t = String(iterated); // target
-  this._i = 0;                // next index
-// 21.1.5.2.1 %StringIteratorPrototype%.next()
-}, function () {
-  var O = this._t;
-  var index = this._i;
-  var point;
-  if (index >= O.length) return { value: undefined, done: true };
-  point = $at(O, index);
-  this._i += point.length;
-  return { value: point, done: false };
-});
-
-
-/***/ }),
-/* 262 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// https://github.com/tc39/proposal-promise-finally
-
-var $export = __webpack_require__(60);
-var core = __webpack_require__(31);
-var global = __webpack_require__(17);
-var speciesConstructor = __webpack_require__(134);
-var promiseResolve = __webpack_require__(131);
-
-$export($export.P + $export.R, 'Promise', { 'finally': function (onFinally) {
-  var C = speciesConstructor(this, core.Promise || global.Promise);
-  var isFunction = typeof onFinally == 'function';
-  return this.then(
-    isFunction ? function (x) {
-      return promiseResolve(C, onFinally()).then(function () { return x; });
-    } : onFinally,
-    isFunction ? function (e) {
-      return promiseResolve(C, onFinally()).then(function () { throw e; });
-    } : onFinally
-  );
-} });
-
-
-/***/ }),
-/* 263 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-// https://github.com/tc39/proposal-promise-try
-var $export = __webpack_require__(60);
-var newPromiseCapability = __webpack_require__(94);
-var perform = __webpack_require__(130);
-
-$export($export.S, 'Promise', { 'try': function (callbackfn) {
-  var promiseCapability = newPromiseCapability.f(this);
-  var result = perform(callbackfn);
-  (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
-  return promiseCapability.promise;
-} });
-
-
-/***/ }),
-/* 264 */
-/***/ (function(module, exports, __webpack_require__) {
-
-__webpack_require__(258);
-var global = __webpack_require__(17);
-var hide = __webpack_require__(42);
-var Iterators = __webpack_require__(53);
-var TO_STRING_TAG = __webpack_require__(20)('toStringTag');
-
-var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' +
-  'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' +
-  'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' +
-  'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' +
-  'TextTrackList,TouchList').split(',');
-
-for (var i = 0; i < DOMIterables.length; i++) {
-  var NAME = DOMIterables[i];
-  var Collection = global[NAME];
-  var proto = Collection && Collection.prototype;
-  if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
-  Iterators[NAME] = Iterators.Array;
-}
-
-
-/***/ }),
-/* 265 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/**
- * This is the web browser implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = __webpack_require__(138);
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-exports.storage = 'undefined' != typeof chrome
-               && 'undefined' != typeof chrome.storage
-                  ? chrome.storage.local
-                  : localstorage();
-
-/**
- * Colors.
- */
-
-exports.colors = [
-  '#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC',
-  '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF',
-  '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC',
-  '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF',
-  '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC',
-  '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033',
-  '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366',
-  '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933',
-  '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC',
-  '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF',
-  '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'
-];
-
-/**
- * Currently only WebKit-based Web Inspectors, Firefox >= v31,
- * and the Firebug extension (any Firefox version) are known
- * to support "%c" CSS customizations.
- *
- * TODO: add a `localStorage` variable to explicitly enable/disable colors
- */
-
-function useColors() {
-  // NB: In an Electron preload script, document will be defined but not fully
-  // initialized. Since we know we're in Chrome, we'll just detect this case
-  // explicitly
-  if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
-    return true;
-  }
-
-  // Internet Explorer and Edge do not support colors.
-  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
-    return false;
-  }
-
-  // is webkit? http://stackoverflow.com/a/16459606/376773
-  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
-  return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
-    // is firebug? http://stackoverflow.com/a/398120/376773
-    (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
-    // is firefox >= v31?
-    // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
-    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
-    // double check webkit in userAgent just in case we are in a worker
-    (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
-}
-
-/**
- * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
- */
-
-exports.formatters.j = function(v) {
-  try {
-    return JSON.stringify(v);
-  } catch (err) {
-    return '[UnexpectedJSONParseError]: ' + err.message;
-  }
-};
-
-
-/**
- * Colorize log arguments if enabled.
- *
- * @api public
- */
-
-function formatArgs(args) {
-  var useColors = this.useColors;
-
-  args[0] = (useColors ? '%c' : '')
-    + this.namespace
-    + (useColors ? ' %c' : ' ')
-    + args[0]
-    + (useColors ? '%c ' : ' ')
-    + '+' + exports.humanize(this.diff);
-
-  if (!useColors) return;
-
-  var c = 'color: ' + this.color;
-  args.splice(1, 0, c, 'color: inherit')
-
-  // the final "%c" is somewhat tricky, because there could be other
-  // arguments passed either before or after the %c, so we need to
-  // figure out the correct index to insert the CSS into
-  var index = 0;
-  var lastC = 0;
-  args[0].replace(/%[a-zA-Z%]/g, function(match) {
-    if ('%%' === match) return;
-    index++;
-    if ('%c' === match) {
-      // we only are interested in the *last* %c
-      // (the user may have provided their own)
-      lastC = index;
-    }
-  });
-
-  args.splice(lastC, 0, c);
-}
-
-/**
- * Invokes `console.log()` when available.
- * No-op when `console.log` is not a "function".
- *
- * @api public
- */
-
-function log() {
-  // this hackery is required for IE8/9, where
-  // the `console.log` function doesn't have 'apply'
-  return 'object' === typeof console
-    && console.log
-    && Function.prototype.apply.call(console.log, console, arguments);
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  try {
-    if (null == namespaces) {
-      exports.storage.removeItem('debug');
-    } else {
-      exports.storage.debug = namespaces;
-    }
-  } catch(e) {}
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  var r;
-  try {
-    r = exports.storage.debug;
-  } catch(e) {}
-
-  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
-  if (!r && typeof process !== 'undefined' && 'env' in process) {
-    r = process.env.DEBUG;
-  }
-
-  return r;
-}
-
-/**
- * Enable namespaces listed in `localStorage.debug` initially.
- */
-
-exports.enable(load());
-
-/**
- * Localstorage attempts to return the localstorage.
- *
- * This is necessary because safari throws
- * when a user disables cookies/localstorage
- * and you attempt to access it.
- *
- * @return {LocalStorage}
- * @api private
- */
-
-function localstorage() {
-  try {
-    return window.localStorage;
-  } catch (e) {}
-}
-
-
-/***/ }),
-/* 266 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/**
- * Detect Electron renderer process, which is node, but we should
- * treat as a browser.
- */
-
-if (typeof process === 'undefined' || process.type === 'renderer') {
-  module.exports = __webpack_require__(265);
-} else {
-  module.exports = __webpack_require__(267);
-}
-
-
-/***/ }),
-/* 267 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/**
- * Module dependencies.
- */
-
-var tty = __webpack_require__(104);
-var util = __webpack_require__(3);
-
-/**
- * This is the Node.js implementation of `debug()`.
- *
- * Expose `debug()` as the module.
- */
-
-exports = module.exports = __webpack_require__(138);
-exports.init = init;
-exports.log = log;
-exports.formatArgs = formatArgs;
-exports.save = save;
-exports.load = load;
-exports.useColors = useColors;
-
-/**
- * Colors.
- */
-
-exports.colors = [ 6, 2, 3, 4, 5, 1 ];
-
-try {
-  var supportsColor = __webpack_require__(330);
-  if (supportsColor && supportsColor.level >= 2) {
-    exports.colors = [
-      20, 21, 26, 27, 32, 33, 38, 39, 40, 41, 42, 43, 44, 45, 56, 57, 62, 63, 68,
-      69, 74, 75, 76, 77, 78, 79, 80, 81, 92, 93, 98, 99, 112, 113, 128, 129, 134,
-      135, 148, 149, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171,
-      172, 173, 178, 179, 184, 185, 196, 197, 198, 199, 200, 201, 202, 203, 204,
-      205, 206, 207, 208, 209, 214, 215, 220, 221
-    ];
-  }
-} catch (err) {
-  // swallow - we only care if `supports-color` is available; it doesn't have to be.
-}
-
-/**
- * Build up the default `inspectOpts` object from the environment variables.
- *
- *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
- */
-
-exports.inspectOpts = Object.keys(process.env).filter(function (key) {
-  return /^debug_/i.test(key);
-}).reduce(function (obj, key) {
-  // camel-case
-  var prop = key
-    .substring(6)
-    .toLowerCase()
-    .replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
-
-  // coerce string value into JS value
-  var val = process.env[key];
-  if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
-  else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
-  else if (val === 'null') val = null;
-  else val = Number(val);
-
-  obj[prop] = val;
-  return obj;
-}, {});
-
-/**
- * Is stdout a TTY? Colored output is enabled when `true`.
- */
-
-function useColors() {
-  return 'colors' in exports.inspectOpts
-    ? Boolean(exports.inspectOpts.colors)
-    : tty.isatty(process.stderr.fd);
-}
-
-/**
- * Map %o to `util.inspect()`, all on a single line.
- */
-
-exports.formatters.o = function(v) {
-  this.inspectOpts.colors = this.useColors;
-  return util.inspect(v, this.inspectOpts)
-    .split('\n').map(function(str) {
-      return str.trim()
-    }).join(' ');
-};
-
-/**
- * Map %o to `util.inspect()`, allowing multiple lines if needed.
- */
-
-exports.formatters.O = function(v) {
-  this.inspectOpts.colors = this.useColors;
-  return util.inspect(v, this.inspectOpts);
-};
-
-/**
- * Adds ANSI color escape codes if enabled.
- *
- * @api public
- */
-
-function formatArgs(args) {
-  var name = this.namespace;
-  var useColors = this.useColors;
-
-  if (useColors) {
-    var c = this.color;
-    var colorCode = '\u001b[3' + (c < 8 ? c : '8;5;' + c);
-    var prefix = '  ' + colorCode + ';1m' + name + ' ' + '\u001b[0m';
-
-    args[0] = prefix + args[0].split('\n').join('\n' + prefix);
-    args.push(colorCode + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
-  } else {
-    args[0] = getDate() + name + ' ' + args[0];
-  }
-}
-
-function getDate() {
-  if (exports.inspectOpts.hideDate) {
-    return '';
-  } else {
-    return new Date().toISOString() + ' ';
-  }
-}
-
-/**
- * Invokes `util.format()` with the specified arguments and writes to stderr.
- */
-
-function log() {
-  return process.stderr.write(util.format.apply(util, arguments) + '\n');
-}
-
-/**
- * Save `namespaces`.
- *
- * @param {String} namespaces
- * @api private
- */
-
-function save(namespaces) {
-  if (null == namespaces) {
-    // If you set a process.env field to null or undefined, it gets cast to the
-    // string 'null' or 'undefined'. Just delete instead.
-    delete process.env.DEBUG;
-  } else {
-    process.env.DEBUG = namespaces;
-  }
-}
-
-/**
- * Load `namespaces`.
- *
- * @return {String} returns the previously persisted debug modes
- * @api private
- */
-
-function load() {
-  return process.env.DEBUG;
-}
-
-/**
- * Init logic for `debug` instances.
- *
- * Create a new `inspectOpts` object in case `useColors` is set
- * differently for a particular `debug` instance.
- */
-
-function init (debug) {
-  debug.inspectOpts = {};
-
-  var keys = Object.keys(exports.inspectOpts);
-  for (var i = 0; i < keys.length; i++) {
-    debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
-  }
-}
-
-/**
- * Enable namespaces listed in `process.env.DEBUG` initially.
- */
-
-exports.enable(load());
-
-
-/***/ }),
-/* 268 */
-/***/ (function(module, exports, __webpack_require__) {
-
-(function webpackUniversalModuleDefinition(root, factory) {
-/* istanbul ignore next */
-	if(true)
-		module.exports = factory();
-	else if(typeof define === 'function' && define.amd)
-		define([], factory);
-/* istanbul ignore next */
-	else if(typeof exports === 'object')
-		exports["esprima"] = factory();
-	else
-		root["esprima"] = factory();
-})(this, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-
-/******/ 		// Check if module is in cache
-/* istanbul ignore if */
-/******/ 		if(installedModules[moduleId])
-/******/ 			return installedModules[moduleId].exports;
-
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			exports: {},
-/******/ 			id: moduleId,
-/******/ 			loaded: false
-/******/ 		};
-
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-
-/******/ 		// Flag the module as loaded
-/******/ 		module.loaded = true;
-
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-
-
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
-
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(0);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	/*
-	  Copyright JS Foundation and other contributors, https://js.foundation/
-
-	  Redistribution and use in source and binary forms, with or without
-	  modification, are permitted provided that the following conditions are met:
-
-	    * Redistributions of source code must retain the above copyright
-	      notice, this list of conditions and the following disclaimer.
-	    * Redistributions in binary form must reproduce the above copyright
-	      notice, this list of conditions and the following disclaimer in the
-	      documentation and/or other materials provided with the distribution.
-
-	  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-	  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-	  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-	  ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-	  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-	  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-	  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-	  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-	  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-	  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-	*/
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var comment_handler_1 = __webpack_require__(1);
-	var jsx_parser_1 = __webpack_require__(3);
-	var parser_1 = __webpack_require__(8);
-	var tokenizer_1 = __webpack_require__(15);
-	function parse(code, options, delegate) {
-	    var commentHandler = null;
-	    var proxyDelegate = function (node, metadata) {
-	        if (delegate) {
-	            delegate(node, metadata);
-	        }
-	        if (commentHandler) {
-	            commentHandler.visit(node, metadata);
-	        }
-	    };
-	    var parserDelegate = (typeof delegate === 'function') ? proxyDelegate : null;
-	    var collectComment = false;
-	    if (options) {
-	        collectComment = (typeof options.comment === 'boolean' && options.comment);
-	        var attachComment = (typeof options.attachComment === 'boolean' && options.attachComment);
-	        if (collectComment || attachComment) {
-	            commentHandler = new comment_handler_1.CommentHandler();
-	            commentHandler.attach = attachComment;
-	            options.comment = true;
-	            parserDelegate = proxyDelegate;
-	        }
-	    }
-	    var isModule = false;
-	    if (options && typeof options.sourceType === 'string') {
-	        isModule = (options.sourceType === 'module');
-	    }
-	    var parser;
-	    if (options && typeof options.jsx === 'boolean' && options.jsx) {
-	        parser = new jsx_parser_1.JSXParser(code, options, parserDelegate);
-	    }
-	    else {
-	        parser = new parser_1.Parser(code, options, parserDelegate);
-	    }
-	    var program = isModule ? parser.parseModule() : parser.parseScript();
-	    var ast = program;
-	    if (collectComment && commentHandler) {
-	        ast.comments = commentHandler.comments;
-	    }
-	    if (parser.config.tokens) {
-	        ast.tokens = parser.tokens;
-	    }
-	    if (parser.config.tolerant) {
-	        ast.errors = parser.errorHandler.errors;
-	    }
-	    return ast;
-	}
-	exports.parse = parse;
-	function parseModule(code, options, delegate) {
-	    var parsingOptions = options || {};
-	    parsingOptions.sourceType = 'module';
-	    return parse(code, parsingOptions, delegate);
-	}
-	exports.parseModule = parseModule;
-	function parseScript(code, options, delegate) {
-	    var parsingOptions = options || {};
-	    parsingOptions.sourceType = 'script';
-	    return parse(code, parsingOptions, delegate);
-	}
-	exports.parseScript = parseScript;
-	function tokenize(code, options, delegate) {
-	    var tokenizer = new tokenizer_1.Tokenizer(code, options);
-	    var tokens;
-	    tokens = [];
-	    try {
-	        while (true) {
-	            var token = tokenizer.getNextToken();
-	            if (!token) {
-	                break;
-	            }
-	            if (delegate) {
-	                token = delegate(token);
-	            }
-	            tokens.push(token);
-	        }
-	    }
-	    catch (e) {
-	        tokenizer.errorHandler.tolerate(e);
-	    }
-	    if (tokenizer.errorHandler.tolerant) {
-	        tokens.errors = tokenizer.errors();
-	    }
-	    return tokens;
-	}
-	exports.tokenize = tokenize;
-	var syntax_1 = __webpack_require__(2);
-	exports.Syntax = syntax_1.Syntax;
-	// Sync with *.json manifests.
-	exports.version = '4.0.1';
-
-
-/***/ },
-/* 1 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var syntax_1 = __webpack_require__(2);
-	var CommentHandler = (function () {
-	    function CommentHandler() {
-	        this.attach = false;
-	        this.comments = [];
-	        this.stack = [];
-	        this.leading = [];
-	        this.trailing = [];
-	    }
-	    CommentHandler.prototype.insertInnerComments = function (node, metadata) {
-	        //  innnerComments for properties empty block
-	        //  `function a() {/** comments **\/}`
-	        if (node.type === syntax_1.Syntax.BlockStatement && node.body.length === 0) {
-	            var innerComments = [];
-	            for (var i = this.leading.length - 1; i >= 0; --i) {
-	                var entry = this.leading[i];
-	                if (metadata.end.offset >= entry.start) {
-	                    innerComments.unshift(entry.comment);
-	                    this.leading.splice(i, 1);
-	                    this.trailing.splice(i, 1);
-	                }
-	            }
-	            if (innerComments.length) {
-	                node.innerComments = innerComments;
-	            }
-	        }
-	    };
-	    CommentHandler.prototype.findTrailingComments = function (metadata) {
-	        var trailingComments = [];
-	        if (this.trailing.length > 0) {
-	            for (var i = this.trailing.length - 1; i >= 0; --i) {
-	                var entry_1 = this.trailing[i];
-	                if (entry_1.start >= metadata.end.offset) {
-	                    trailingComments.unshift(entry_1.comment);
-	                }
-	            }
-	            this.trailing.length = 0;
-	            return trailingComments;
-	        }
-	        var entry = this.stack[this.stack.length - 1];
-	        if (entry && entry.node.trailingComments) {
-	            var firstComment = entry.node.trailingComments[0];
-	            if (firstComment && firstComment.range[0] >= metadata.end.offset) {
-	                trailingComments = entry.node.trailingComments;
-	                delete entry.node.trailingComments;
-	            }
-	        }
-	        return trailingComments;
-	    };
-	    CommentHandler.prototype.findLeadingComments = function (metadata) {
-	        var leadingComments = [];
-	        var target;
-	        while (this.stack.length > 0) {
-	            var entry = this.stack[this.stack.length - 1];
-	            if (entry && entry.start >= metadata.start.offset) {
-	                target = entry.node;
-	                this.stack.pop();
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        if (target) {
-	            var count = target.leadingComments ? target.leadingComments.length : 0;
-	            for (var i = count - 1; i >= 0; --i) {
-	                var comment = target.leadingComments[i];
-	                if (comment.range[1] <= metadata.start.offset) {
-	                    leadingComments.unshift(comment);
-	                    target.leadingComments.splice(i, 1);
-	                }
-	            }
-	            if (target.leadingComments && target.leadingComments.length === 0) {
-	                delete target.leadingComments;
-	            }
-	            return leadingComments;
-	        }
-	        for (var i = this.leading.length - 1; i >= 0; --i) {
-	            var entry = this.leading[i];
-	            if (entry.start <= metadata.start.offset) {
-	                leadingComments.unshift(entry.comment);
-	                this.leading.splice(i, 1);
-	            }
-	        }
-	        return leadingComments;
-	    };
-	    CommentHandler.prototype.visitNode = function (node, metadata) {
-	        if (node.type === syntax_1.Syntax.Program && node.body.length > 0) {
-	            return;
-	        }
-	        this.insertInnerComments(node, metadata);
-	        var trailingComments = this.findTrailingComments(metadata);
-	        var leadingComments = this.findLeadingComments(metadata);
-	        if (leadingComments.length > 0) {
-	            node.leadingComments = leadingComments;
-	        }
-	        if (trailingComments.length > 0) {
-	            node.trailingComments = trailingComments;
-	        }
-	        this.stack.push({
-	            node: node,
-	            start: metadata.start.offset
-	        });
-	    };
-	    CommentHandler.prototype.visitComment = function (node, metadata) {
-	        var type = (node.type[0] === 'L') ? 'Line' : 'Block';
-	        var comment = {
-	            type: type,
-	            value: node.value
-	        };
-	        if (node.range) {
-	            comment.range = node.range;
-	        }
-	        if (node.loc) {
-	            comment.loc = node.loc;
-	        }
-	        this.comments.push(comment);
-	        if (this.attach) {
-	            var entry = {
-	                comment: {
-	                    type: type,
-	                    value: node.value,
-	                    range: [metadata.start.offset, metadata.end.offset]
-	                },
-	                start: metadata.start.offset
-	            };
-	            if (node.loc) {
-	                entry.comment.loc = node.loc;
-	            }
-	            node.type = type;
-	            this.leading.push(entry);
-	            this.trailing.push(entry);
-	        }
-	    };
-	    CommentHandler.prototype.visit = function (node, metadata) {
-	        if (node.type === 'LineComment') {
-	            this.visitComment(node, metadata);
-	        }
-	        else if (node.type === 'BlockComment') {
-	            this.visitComment(node, metadata);
-	        }
-	        else if (this.attach) {
-	            this.visitNode(node, metadata);
-	        }
-	    };
-	    return CommentHandler;
-	}());
-	exports.CommentHandler = CommentHandler;
-
-
-/***/ },
-/* 2 */
-/***/ function(module, exports) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	exports.Syntax = {
-	    AssignmentExpression: 'AssignmentExpression',
-	    AssignmentPattern: 'AssignmentPattern',
-	    ArrayExpression: 'ArrayExpression',
-	    ArrayPattern: 'ArrayPattern',
-	    ArrowFunctionExpression: 'ArrowFunctionExpression',
-	    AwaitExpression: 'AwaitExpression',
-	    BlockStatement: 'BlockStatement',
-	    BinaryExpression: 'BinaryExpression',
-	    BreakStatement: 'BreakStatement',
-	    CallExpression: 'CallExpression',
-	    CatchClause: 'CatchClause',
-	    ClassBody: 'ClassBody',
-	    ClassDeclaration: 'ClassDeclaration',
-	    ClassExpression: 'ClassExpression',
-	    ConditionalExpression: 'ConditionalExpression',
-	    ContinueStatement: 'ContinueStatement',
-	    DoWhileStatement: 'DoWhileStatement',
-	    DebuggerStatement: 'DebuggerStatement',
-	    EmptyStatement: 'EmptyStatement',
-	    ExportAllDeclaration: 'ExportAllDeclaration',
-	    ExportDefaultDeclaration: 'ExportDefaultDeclaration',
-	    ExportNamedDeclaration: 'ExportNamedDeclaration',
-	    ExportSpecifier: 'ExportSpecifier',
-	    ExpressionStatement: 'ExpressionStatement',
-	    ForStatement: 'ForStatement',
-	    ForOfStatement: 'ForOfStatement',
-	    ForInStatement: 'ForInStatement',
-	    FunctionDeclaration: 'FunctionDeclaration',
-	    FunctionExpression: 'FunctionExpression',
-	    Identifier: 'Identifier',
-	    IfStatement: 'IfStatement',
-	    ImportDeclaration: 'ImportDeclaration',
-	    ImportDefaultSpecifier: 'ImportDefaultSpecifier',
-	    ImportNamespaceSpecifier: 'ImportNamespaceSpecifier',
-	    ImportSpecifier: 'ImportSpecifier',
-	    Literal: 'Literal',
-	    LabeledStatement: 'LabeledStatement',
-	    LogicalExpression: 'LogicalExpression',
-	    MemberExpression: 'MemberExpression',
-	    MetaProperty: 'MetaProperty',
-	    MethodDefinition: 'MethodDefinition',
-	    NewExpression: 'NewExpression',
-	    ObjectExpression: 'ObjectExpression',
-	    ObjectPattern: 'ObjectPattern',
-	    Program: 'Program',
-	    Property: 'Property',
-	    RestElement: 'RestElement',
-	    ReturnStatement: 'ReturnStatement',
-	    SequenceExpression: 'SequenceExpression',
-	    SpreadElement: 'SpreadElement',
-	    Super: 'Super',
-	    SwitchCase: 'SwitchCase',
-	    SwitchStatement: 'SwitchStatement',
-	    TaggedTemplateExpression: 'TaggedTemplateExpression',
-	    TemplateElement: 'TemplateElement',
-	    TemplateLiteral: 'TemplateLiteral',
-	    ThisExpression: 'ThisExpression',
-	    ThrowStatement: 'ThrowStatement',
-	    TryStatement: 'TryStatement',
-	    UnaryExpression: 'UnaryExpression',
-	    UpdateExpression: 'UpdateExpression',
-	    VariableDeclaration: 'VariableDeclaration',
-	    VariableDeclarator: 'VariableDeclarator',
-	    WhileStatement: 'WhileStatement',
-	    WithStatement: 'WithStatement',
-	    YieldExpression: 'YieldExpression'
-	};
-
-
-/***/ },
-/* 3 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-/* istanbul ignore next */
-	var __extends = (this && this.__extends) || (function () {
-	    var extendStatics = Object.setPrototypeOf ||
-	        ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-	        function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-	    return function (d, b) {
-	        extendStatics(d, b);
-	        function __() { this.constructor = d; }
-	        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-	    };
-	})();
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var character_1 = __webpack_require__(4);
-	var JSXNode = __webpack_require__(5);
-	var jsx_syntax_1 = __webpack_require__(6);
-	var Node = __webpack_require__(7);
-	var parser_1 = __webpack_require__(8);
-	var token_1 = __webpack_require__(13);
-	var xhtml_entities_1 = __webpack_require__(14);
-	token_1.TokenName[100 /* Identifier */] = 'JSXIdentifier';
-	token_1.TokenName[101 /* Text */] = 'JSXText';
-	// Fully qualified element name, e.g. <svg:path> returns "svg:path"
-	function getQualifiedElementName(elementName) {
-	    var qualifiedName;
-	    switch (elementName.type) {
-	        case jsx_syntax_1.JSXSyntax.JSXIdentifier:
-	            var id = elementName;
-	            qualifiedName = id.name;
-	            break;
-	        case jsx_syntax_1.JSXSyntax.JSXNamespacedName:
-	            var ns = elementName;
-	            qualifiedName = getQualifiedElementName(ns.namespace) + ':' +
-	                getQualifiedElementName(ns.name);
-	            break;
-	        case jsx_syntax_1.JSXSyntax.JSXMemberExpression:
-	            var expr = elementName;
-	            qualifiedName = getQualifiedElementName(expr.object) + '.' +
-	                getQualifiedElementName(expr.property);
-	            break;
-	        /* istanbul ignore next */
-	        default:
-	            break;
-	    }
-	    return qualifiedName;
-	}
-	var JSXParser = (function (_super) {
-	    __extends(JSXParser, _super);
-	    function JSXParser(code, options, delegate) {
-	        return _super.call(this, code, options, delegate) || this;
-	    }
-	    JSXParser.prototype.parsePrimaryExpression = function () {
-	        return this.match('<') ? this.parseJSXRoot() : _super.prototype.parsePrimaryExpression.call(this);
-	    };
-	    JSXParser.prototype.startJSX = function () {
-	        // Unwind the scanner before the lookahead token.
-	        this.scanner.index = this.startMarker.index;
-	        this.scanner.lineNumber = this.startMarker.line;
-	        this.scanner.lineStart = this.startMarker.index - this.startMarker.column;
-	    };
-	    JSXParser.prototype.finishJSX = function () {
-	        // Prime the next lookahead.
-	        this.nextToken();
-	    };
-	    JSXParser.prototype.reenterJSX = function () {
-	        this.startJSX();
-	        this.expectJSX('}');
-	        // Pop the closing '}' added from the lookahead.
-	        if (this.config.tokens) {
-	            this.tokens.pop();
-	        }
-	    };
-	    JSXParser.prototype.createJSXNode = function () {
-	        this.collectComments();
-	        return {
-	            index: this.scanner.index,
-	            line: this.scanner.lineNumber,
-	            column: this.scanner.index - this.scanner.lineStart
-	        };
-	    };
-	    JSXParser.prototype.createJSXChildNode = function () {
-	        return {
-	            index: this.scanner.index,
-	            line: this.scanner.lineNumber,
-	            column: this.scanner.index - this.scanner.lineStart
-	        };
-	    };
-	    JSXParser.prototype.scanXHTMLEntity = function (quote) {
-	        var result = '&';
-	        var valid = true;
-	        var terminated = false;
-	        var numeric = false;
-	        var hex = false;
-	        while (!this.scanner.eof() && valid && !terminated) {
-	            var ch = this.scanner.source[this.scanner.index];
-	            if (ch === quote) {
-	                break;
-	            }
-	            terminated = (ch === ';');
-	            result += ch;
-	            ++this.scanner.index;
-	            if (!terminated) {
-	                switch (result.length) {
-	                    case 2:
-	                        // e.g. '&#123;'
-	                        numeric = (ch === '#');
-	                        break;
-	                    case 3:
-	                        if (numeric) {
-	                            // e.g. '&#x41;'
-	                            hex = (ch === 'x');
-	                            valid = hex || character_1.Character.isDecimalDigit(ch.charCodeAt(0));
-	                            numeric = numeric && !hex;
-	                        }
-	                        break;
-	                    default:
-	                        valid = valid && !(numeric && !character_1.Character.isDecimalDigit(ch.charCodeAt(0)));
-	                        valid = valid && !(hex && !character_1.Character.isHexDigit(ch.charCodeAt(0)));
-	                        break;
-	                }
-	            }
-	        }
-	        if (valid && terminated && result.length > 2) {
-	            // e.g. '&#x41;' becomes just '#x41'
-	            var str = result.substr(1, result.length - 2);
-	            if (numeric && str.length > 1) {
-	                result = String.fromCharCode(parseInt(str.substr(1), 10));
-	            }
-	            else if (hex && str.length > 2) {
-	                result = String.fromCharCode(parseInt('0' + str.substr(1), 16));
-	            }
-	            else if (!numeric && !hex && xhtml_entities_1.XHTMLEntities[str]) {
-	                result = xhtml_entities_1.XHTMLEntities[str];
-	            }
-	        }
-	        return result;
-	    };
-	    // Scan the next JSX token. This replaces Scanner#lex when in JSX mode.
-	    JSXParser.prototype.lexJSX = function () {
-	        var cp = this.scanner.source.charCodeAt(this.scanner.index);
-	        // < > / : = { }
-	        if (cp === 60 || cp === 62 || cp === 47 || cp === 58 || cp === 61 || cp === 123 || cp === 125) {
-	            var value = this.scanner.source[this.scanner.index++];
-	            return {
-	                type: 7 /* Punctuator */,
-	                value: value,
-	                lineNumber: this.scanner.lineNumber,
-	                lineStart: this.scanner.lineStart,
-	                start: this.scanner.index - 1,
-	                end: this.scanner.index
-	            };
-	        }
-	        // " '
-	        if (cp === 34 || cp === 39) {
-	            var start = this.scanner.index;
-	            var quote = this.scanner.source[this.scanner.index++];
-	            var str = '';
-	            while (!this.scanner.eof()) {
-	                var ch = this.scanner.source[this.scanner.index++];
-	                if (ch === quote) {
-	                    break;
-	                }
-	                else if (ch === '&') {
-	                    str += this.scanXHTMLEntity(quote);
-	                }
-	                else {
-	                    str += ch;
-	                }
-	            }
-	            return {
-	                type: 8 /* StringLiteral */,
-	                value: str,
-	                lineNumber: this.scanner.lineNumber,
-	                lineStart: this.scanner.lineStart,
-	                start: start,
-	                end: this.scanner.index
-	            };
-	        }
-	        // ... or .
-	        if (cp === 46) {
-	            var n1 = this.scanner.source.charCodeAt(this.scanner.index + 1);
-	            var n2 = this.scanner.source.charCodeAt(this.scanner.index + 2);
-	            var value = (n1 === 46 && n2 === 46) ? '...' : '.';
-	            var start = this.scanner.index;
-	            this.scanner.index += value.length;
-	            return {
-	                type: 7 /* Punctuator */,
-	                value: value,
-	                lineNumber: this.scanner.lineNumber,
-	                lineStart: this.scanner.lineStart,
-	                start: start,
-	                end: this.scanner.index
-	            };
-	        }
-	        // `
-	        if (cp === 96) {
-	            // Only placeholder, since it will be rescanned as a real assignment expression.
-	            return {
-	                type: 10 /* Template */,
-	                value: '',
-	                lineNumber: this.scanner.lineNumber,
-	                lineStart: this.scanner.lineStart,
-	                start: this.scanner.index,
-	                end: this.scanner.index
-	            };
-	        }
-	        // Identifer can not contain backslash (char code 92).
-	        if (character_1.Character.isIdentifierStart(cp) && (cp !== 92)) {
-	            var start = this.scanner.index;
-	            ++this.scanner.index;
-	            while (!this.scanner.eof()) {
-	                var ch = this.scanner.source.charCodeAt(this.scanner.index);
-	                if (character_1.Character.isIdentifierPart(ch) && (ch !== 92)) {
-	                    ++this.scanner.index;
-	                }
-	                else if (ch === 45) {
-	                    // Hyphen (char code 45) can be part of an identifier.
-	                    ++this.scanner.index;
-	                }
-	                else {
-	                    break;
-	                }
-	            }
-	            var id = this.scanner.source.slice(start, this.scanner.index);
-	            return {
-	                type: 100 /* Identifier */,
-	                value: id,
-	                lineNumber: this.scanner.lineNumber,
-	                lineStart: this.scanner.lineStart,
-	                start: start,
-	                end: this.scanner.index
-	            };
-	        }
-	        return this.scanner.lex();
-	    };
-	    JSXParser.prototype.nextJSXToken = function () {
-	        this.collectComments();
-	        this.startMarker.index = this.scanner.index;
-	        this.startMarker.line = this.scanner.lineNumber;
-	        this.startMarker.column = this.scanner.index - this.scanner.lineStart;
-	        var token = this.lexJSX();
-	        this.lastMarker.index = this.scanner.index;
-	        this.lastMarker.line = this.scanner.lineNumber;
-	        this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
-	        if (this.config.tokens) {
-	            this.tokens.push(this.convertToken(token));
-	        }
-	        return token;
-	    };
-	    JSXParser.prototype.nextJSXText = function () {
-	        this.startMarker.index = this.scanner.index;
-	        this.startMarker.line = this.scanner.lineNumber;
-	        this.startMarker.column = this.scanner.index - this.scanner.lineStart;
-	        var start = this.scanner.index;
-	        var text = '';
-	        while (!this.scanner.eof()) {
-	            var ch = this.scanner.source[this.scanner.index];
-	            if (ch === '{' || ch === '<') {
-	                break;
-	            }
-	            ++this.scanner.index;
-	            text += ch;
-	            if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                ++this.scanner.lineNumber;
-	                if (ch === '\r' && this.scanner.source[this.scanner.index] === '\n') {
-	                    ++this.scanner.index;
-	                }
-	                this.scanner.lineStart = this.scanner.index;
-	            }
-	        }
-	        this.lastMarker.index = this.scanner.index;
-	        this.lastMarker.line = this.scanner.lineNumber;
-	        this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
-	        var token = {
-	            type: 101 /* Text */,
-	            value: text,
-	            lineNumber: this.scanner.lineNumber,
-	            lineStart: this.scanner.lineStart,
-	            start: start,
-	            end: this.scanner.index
-	        };
-	        if ((text.length > 0) && this.config.tokens) {
-	            this.tokens.push(this.convertToken(token));
-	        }
-	        return token;
-	    };
-	    JSXParser.prototype.peekJSXToken = function () {
-	        var state = this.scanner.saveState();
-	        this.scanner.scanComments();
-	        var next = this.lexJSX();
-	        this.scanner.restoreState(state);
-	        return next;
-	    };
-	    // Expect the next JSX token to match the specified punctuator.
-	    // If not, an exception will be thrown.
-	    JSXParser.prototype.expectJSX = function (value) {
-	        var token = this.nextJSXToken();
-	        if (token.type !== 7 /* Punctuator */ || token.value !== value) {
-	            this.throwUnexpectedToken(token);
-	        }
-	    };
-	    // Return true if the next JSX token matches the specified punctuator.
-	    JSXParser.prototype.matchJSX = function (value) {
-	        var next = this.peekJSXToken();
-	        return next.type === 7 /* Punctuator */ && next.value === value;
-	    };
-	    JSXParser.prototype.parseJSXIdentifier = function () {
-	        var node = this.createJSXNode();
-	        var token = this.nextJSXToken();
-	        if (token.type !== 100 /* Identifier */) {
-	            this.throwUnexpectedToken(token);
-	        }
-	        return this.finalize(node, new JSXNode.JSXIdentifier(token.value));
-	    };
-	    JSXParser.prototype.parseJSXElementName = function () {
-	        var node = this.createJSXNode();
-	        var elementName = this.parseJSXIdentifier();
-	        if (this.matchJSX(':')) {
-	            var namespace = elementName;
-	            this.expectJSX(':');
-	            var name_1 = this.parseJSXIdentifier();
-	            elementName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_1));
-	        }
-	        else if (this.matchJSX('.')) {
-	            while (this.matchJSX('.')) {
-	                var object = elementName;
-	                this.expectJSX('.');
-	                var property = this.parseJSXIdentifier();
-	                elementName = this.finalize(node, new JSXNode.JSXMemberExpression(object, property));
-	            }
-	        }
-	        return elementName;
-	    };
-	    JSXParser.prototype.parseJSXAttributeName = function () {
-	        var node = this.createJSXNode();
-	        var attributeName;
-	        var identifier = this.parseJSXIdentifier();
-	        if (this.matchJSX(':')) {
-	            var namespace = identifier;
-	            this.expectJSX(':');
-	            var name_2 = this.parseJSXIdentifier();
-	            attributeName = this.finalize(node, new JSXNode.JSXNamespacedName(namespace, name_2));
-	        }
-	        else {
-	            attributeName = identifier;
-	        }
-	        return attributeName;
-	    };
-	    JSXParser.prototype.parseJSXStringLiteralAttribute = function () {
-	        var node = this.createJSXNode();
-	        var token = this.nextJSXToken();
-	        if (token.type !== 8 /* StringLiteral */) {
-	            this.throwUnexpectedToken(token);
-	        }
-	        var raw = this.getTokenRaw(token);
-	        return this.finalize(node, new Node.Literal(token.value, raw));
-	    };
-	    JSXParser.prototype.parseJSXExpressionAttribute = function () {
-	        var node = this.createJSXNode();
-	        this.expectJSX('{');
-	        this.finishJSX();
-	        if (this.match('}')) {
-	            this.tolerateError('JSX attributes must only be assigned a non-empty expression');
-	        }
-	        var expression = this.parseAssignmentExpression();
-	        this.reenterJSX();
-	        return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
-	    };
-	    JSXParser.prototype.parseJSXAttributeValue = function () {
-	        return this.matchJSX('{') ? this.parseJSXExpressionAttribute() :
-	            this.matchJSX('<') ? this.parseJSXElement() : this.parseJSXStringLiteralAttribute();
-	    };
-	    JSXParser.prototype.parseJSXNameValueAttribute = function () {
-	        var node = this.createJSXNode();
-	        var name = this.parseJSXAttributeName();
-	        var value = null;
-	        if (this.matchJSX('=')) {
-	            this.expectJSX('=');
-	            value = this.parseJSXAttributeValue();
-	        }
-	        return this.finalize(node, new JSXNode.JSXAttribute(name, value));
-	    };
-	    JSXParser.prototype.parseJSXSpreadAttribute = function () {
-	        var node = this.createJSXNode();
-	        this.expectJSX('{');
-	        this.expectJSX('...');
-	        this.finishJSX();
-	        var argument = this.parseAssignmentExpression();
-	        this.reenterJSX();
-	        return this.finalize(node, new JSXNode.JSXSpreadAttribute(argument));
-	    };
-	    JSXParser.prototype.parseJSXAttributes = function () {
-	        var attributes = [];
-	        while (!this.matchJSX('/') && !this.matchJSX('>')) {
-	            var attribute = this.matchJSX('{') ? this.parseJSXSpreadAttribute() :
-	                this.parseJSXNameValueAttribute();
-	            attributes.push(attribute);
-	        }
-	        return attributes;
-	    };
-	    JSXParser.prototype.parseJSXOpeningElement = function () {
-	        var node = this.createJSXNode();
-	        this.expectJSX('<');
-	        var name = this.parseJSXElementName();
-	        var attributes = this.parseJSXAttributes();
-	        var selfClosing = this.matchJSX('/');
-	        if (selfClosing) {
-	            this.expectJSX('/');
-	        }
-	        this.expectJSX('>');
-	        return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
-	    };
-	    JSXParser.prototype.parseJSXBoundaryElement = function () {
-	        var node = this.createJSXNode();
-	        this.expectJSX('<');
-	        if (this.matchJSX('/')) {
-	            this.expectJSX('/');
-	            var name_3 = this.parseJSXElementName();
-	            this.expectJSX('>');
-	            return this.finalize(node, new JSXNode.JSXClosingElement(name_3));
-	        }
-	        var name = this.parseJSXElementName();
-	        var attributes = this.parseJSXAttributes();
-	        var selfClosing = this.matchJSX('/');
-	        if (selfClosing) {
-	            this.expectJSX('/');
-	        }
-	        this.expectJSX('>');
-	        return this.finalize(node, new JSXNode.JSXOpeningElement(name, selfClosing, attributes));
-	    };
-	    JSXParser.prototype.parseJSXEmptyExpression = function () {
-	        var node = this.createJSXChildNode();
-	        this.collectComments();
-	        this.lastMarker.index = this.scanner.index;
-	        this.lastMarker.line = this.scanner.lineNumber;
-	        this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
-	        return this.finalize(node, new JSXNode.JSXEmptyExpression());
-	    };
-	    JSXParser.prototype.parseJSXExpressionContainer = function () {
-	        var node = this.createJSXNode();
-	        this.expectJSX('{');
-	        var expression;
-	        if (this.matchJSX('}')) {
-	            expression = this.parseJSXEmptyExpression();
-	            this.expectJSX('}');
-	        }
-	        else {
-	            this.finishJSX();
-	            expression = this.parseAssignmentExpression();
-	            this.reenterJSX();
-	        }
-	        return this.finalize(node, new JSXNode.JSXExpressionContainer(expression));
-	    };
-	    JSXParser.prototype.parseJSXChildren = function () {
-	        var children = [];
-	        while (!this.scanner.eof()) {
-	            var node = this.createJSXChildNode();
-	            var token = this.nextJSXText();
-	            if (token.start < token.end) {
-	                var raw = this.getTokenRaw(token);
-	                var child = this.finalize(node, new JSXNode.JSXText(token.value, raw));
-	                children.push(child);
-	            }
-	            if (this.scanner.source[this.scanner.index] === '{') {
-	                var container = this.parseJSXExpressionContainer();
-	                children.push(container);
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        return children;
-	    };
-	    JSXParser.prototype.parseComplexJSXElement = function (el) {
-	        var stack = [];
-	        while (!this.scanner.eof()) {
-	            el.children = el.children.concat(this.parseJSXChildren());
-	            var node = this.createJSXChildNode();
-	            var element = this.parseJSXBoundaryElement();
-	            if (element.type === jsx_syntax_1.JSXSyntax.JSXOpeningElement) {
-	                var opening = element;
-	                if (opening.selfClosing) {
-	                    var child = this.finalize(node, new JSXNode.JSXElement(opening, [], null));
-	                    el.children.push(child);
-	                }
-	                else {
-	                    stack.push(el);
-	                    el = { node: node, opening: opening, closing: null, children: [] };
-	                }
-	            }
-	            if (element.type === jsx_syntax_1.JSXSyntax.JSXClosingElement) {
-	                el.closing = element;
-	                var open_1 = getQualifiedElementName(el.opening.name);
-	                var close_1 = getQualifiedElementName(el.closing.name);
-	                if (open_1 !== close_1) {
-	                    this.tolerateError('Expected corresponding JSX closing tag for %0', open_1);
-	                }
-	                if (stack.length > 0) {
-	                    var child = this.finalize(el.node, new JSXNode.JSXElement(el.opening, el.children, el.closing));
-	                    el = stack[stack.length - 1];
-	                    el.children.push(child);
-	                    stack.pop();
-	                }
-	                else {
-	                    break;
-	                }
-	            }
-	        }
-	        return el;
-	    };
-	    JSXParser.prototype.parseJSXElement = function () {
-	        var node = this.createJSXNode();
-	        var opening = this.parseJSXOpeningElement();
-	        var children = [];
-	        var closing = null;
-	        if (!opening.selfClosing) {
-	            var el = this.parseComplexJSXElement({ node: node, opening: opening, closing: closing, children: children });
-	            children = el.children;
-	            closing = el.closing;
-	        }
-	        return this.finalize(node, new JSXNode.JSXElement(opening, children, closing));
-	    };
-	    JSXParser.prototype.parseJSXRoot = function () {
-	        // Pop the opening '<' added from the lookahead.
-	        if (this.config.tokens) {
-	            this.tokens.pop();
-	        }
-	        this.startJSX();
-	        var element = this.parseJSXElement();
-	        this.finishJSX();
-	        return element;
-	    };
-	    JSXParser.prototype.isStartOfExpression = function () {
-	        return _super.prototype.isStartOfExpression.call(this) || this.match('<');
-	    };
-	    return JSXParser;
-	}(parser_1.Parser));
-	exports.JSXParser = JSXParser;
-
-
-/***/ },
-/* 4 */
-/***/ function(module, exports) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	// See also tools/generate-unicode-regex.js.
-	var Regex = {
-	    // Unicode v8.0.0 NonAsciiIdentifierStart:
-	    NonAsciiIdentifierStart: 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-	    // Unicode v8.0.0 NonAsciiIdentifierPart:
-	    NonAsciiIdentifierPart: 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-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]|\uD800[\uDC00-\uDC0B\uDC0D-\uDC26\uDC28-\uDC3A\uDC3C\uDC3D\uDC3F-\uDC4D\uDC50-\uDC5D\uDC80-\uDCFA\uDD40-\uDD74\uDDFD\uDE80-\uDE9C\uDEA0-\uDED0\uDEE0\uDF00-\uDF1F\uDF30-\uDF4A\uDF50-\uDF7A\uDF80-\uDF9D\uDFA0-\uDFC3\uDFC8-\uDFCF\uDFD1-\uDFD5]|\uD801[\uDC00-\uDC9D\uDCA0-\uDCA9\uDD00-\uDD27\uDD30-\uDD63\uDE00-\uDF36\uDF40-\uDF55\uDF60-\uDF67]|\uD802[\uDC00-\uDC05\uDC08\uDC0A-\uDC35\uDC37\uDC38\uDC3C\uDC3F-\uDC55\uDC60-\uDC76\uDC80-\uDC9E\uDCE0-\uDCF2\uDCF4\uDCF5\uDD00-\uDD15\uDD20-\uDD39\uDD80-\uDDB7\uDDBE\uDDBF\uDE00-\uDE03\uDE05\uDE06\uDE0C-\uDE13\uDE15-\uDE17\uDE19-\uDE33\uDE38-\uDE3A\uDE3F\uDE60-\uDE7C\uDE80-\uDE9C\uDEC0-\uDEC7\uDEC9-\uDEE6\uDF00-\uDF35\uDF40-\uDF55\uDF60-\uDF72\uDF80-\uDF91]|\uD803[\uDC00-\uDC48\uDC80-\uDCB2\uDCC0-\uDCF2]|\uD804[\uDC00-\uDC46\uDC66-\uDC6F\uDC7F-\uDCBA\uDCD0-\uDCE8\uDCF0-\uDCF9\uDD00-\uDD34\uDD36-\uDD3F\uDD50-\uDD73\uDD76\uDD80-\uDDC4\uDDCA-\uDDCC\uDDD0-\uDDDA\uDDDC\uDE00-\uDE11\uDE13-\uDE37\uDE80-\uDE86\uDE88\uDE8A-\uDE8D\uDE8F-\uDE9D\uDE9F-\uDEA8\uDEB0-\uDEEA\uDEF0-\uDEF9\uDF00-\uDF03\uDF05-\uDF0C\uDF0F\uDF10\uDF13-\uDF28\uDF2A-\uDF30\uDF32\uDF33\uDF35-\uDF39\uDF3C-\uDF44\uDF47\uDF48\uDF4B-\uDF4D\uDF50\uDF57\uDF5D-\uDF63\uDF66-\uDF6C\uDF70-\uDF74]|\uD805[\uDC80-\uDCC5\uDCC7\uDCD0-\uDCD9\uDD80-\uDDB5\uDDB8-\uDDC0\uDDD8-\uDDDD\uDE00-\uDE40\uDE44\uDE50-\uDE59\uDE80-\uDEB7\uDEC0-\uDEC9\uDF00-\uDF19\uDF1D-\uDF2B\uDF30-\uDF39]|\uD806[\uDCA0-\uDCE9\uDCFF\uDEC0-\uDEF8]|\uD808[\uDC00-\uDF99]|\uD809[\uDC00-\uDC6E\uDC80-\uDD43]|[\uD80C\uD840-\uD868\uD86A-\uD86C\uD86F-\uD872][\uDC00-\uDFFF]|\uD80D[\uDC00-\uDC2E]|\uD811[\uDC00-\uDE46]|\uD81A[\uDC00-\uDE38\uDE40-\uDE5E\uDE60-\uDE69\uDED0-\uDEED\uDEF0-\uDEF4\uDF00-\uDF36\uDF40-\uDF43\uDF50-\uDF59\uDF63-\uDF77\uDF7D-\uDF8F]|\uD81B[\uDF00-\uDF44\uDF50-\uDF7E\uDF8F-\uDF9F]|\uD82C[\uDC00\uDC01]|\uD82F[\uDC00-\uDC6A\uDC70-\uDC7C\uDC80-\uDC88\uDC90-\uDC99\uDC9D\uDC9E]|\uD834[\uDD65-\uDD69\uDD6D-\uDD72\uDD7B-\uDD82\uDD85-\uDD8B\uDDAA-\uDDAD\uDE42-\uDE44]|\uD835[\uDC00-\uDC54\uDC56-\uDC9C\uDC9E\uDC9F\uDCA2\uDCA5\uDCA6\uDCA9-\uDCAC\uDCAE-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDD05\uDD07-\uDD0A\uDD0D-\uDD14\uDD16-\uDD1C\uDD1E-\uDD39\uDD3B-\uDD3E\uDD40-\uDD44\uDD46\uDD4A-\uDD50\uDD52-\uDEA5\uDEA8-\uDEC0\uDEC2-\uDEDA\uDEDC-\uDEFA\uDEFC-\uDF14\uDF16-\uDF34\uDF36-\uDF4E\uDF50-\uDF6E\uDF70-\uDF88\uDF8A-\uDFA8\uDFAA-\uDFC2\uDFC4-\uDFCB\uDFCE-\uDFFF]|\uD836[\uDE00-\uDE36\uDE3B-\uDE6C\uDE75\uDE84\uDE9B-\uDE9F\uDEA1-\uDEAF]|\uD83A[\uDC00-\uDCC4\uDCD0-\uDCD6]|\uD83B[\uDE00-\uDE03\uDE05-\uDE1F\uDE21\uDE22\uDE24\uDE27\uDE29-\uDE32\uDE34-\uDE37\uDE39\uDE3B\uDE42\uDE47\uDE49\uDE4B\uDE4D-\uDE4F\uDE51\uDE52\uDE54\uDE57\uDE59\uDE5B\uDE5D\uDE5F\uDE61\uDE62\uDE64\uDE67-\uDE6A\uDE6C-\uDE72\uDE74-\uDE77\uDE79-\uDE7C\uDE7E\uDE80-\uDE89\uDE8B-\uDE9B\uDEA1-\uDEA3\uDEA5-\uDEA9\uDEAB-\uDEBB]|\uD869[\uDC00-\uDED6\uDF00-\uDFFF]|\uD86D[\uDC00-\uDF34\uDF40-\uDFFF]|\uD86E[\uDC00-\uDC1D\uDC20-\uDFFF]|\uD873[\uDC00-\uDEA1]|\uD87E[\uDC00-\uDE1D]|\uDB40[\uDD00-\uDDEF]/
-	};
-	exports.Character = {
-	    /* tslint:disable:no-bitwise */
-	    fromCodePoint: function (cp) {
-	        return (cp < 0x10000) ? String.fromCharCode(cp) :
-	            String.fromCharCode(0xD800 + ((cp - 0x10000) >> 10)) +
-	                String.fromCharCode(0xDC00 + ((cp - 0x10000) & 1023));
-	    },
-	    // https://tc39.github.io/ecma262/#sec-white-space
-	    isWhiteSpace: function (cp) {
-	        return (cp === 0x20) || (cp === 0x09) || (cp === 0x0B) || (cp === 0x0C) || (cp === 0xA0) ||
-	            (cp >= 0x1680 && [0x1680, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x202F, 0x205F, 0x3000, 0xFEFF].indexOf(cp) >= 0);
-	    },
-	    // https://tc39.github.io/ecma262/#sec-line-terminators
-	    isLineTerminator: function (cp) {
-	        return (cp === 0x0A) || (cp === 0x0D) || (cp === 0x2028) || (cp === 0x2029);
-	    },
-	    // https://tc39.github.io/ecma262/#sec-names-and-keywords
-	    isIdentifierStart: function (cp) {
-	        return (cp === 0x24) || (cp === 0x5F) ||
-	            (cp >= 0x41 && cp <= 0x5A) ||
-	            (cp >= 0x61 && cp <= 0x7A) ||
-	            (cp === 0x5C) ||
-	            ((cp >= 0x80) && Regex.NonAsciiIdentifierStart.test(exports.Character.fromCodePoint(cp)));
-	    },
-	    isIdentifierPart: function (cp) {
-	        return (cp === 0x24) || (cp === 0x5F) ||
-	            (cp >= 0x41 && cp <= 0x5A) ||
-	            (cp >= 0x61 && cp <= 0x7A) ||
-	            (cp >= 0x30 && cp <= 0x39) ||
-	            (cp === 0x5C) ||
-	            ((cp >= 0x80) && Regex.NonAsciiIdentifierPart.test(exports.Character.fromCodePoint(cp)));
-	    },
-	    // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
-	    isDecimalDigit: function (cp) {
-	        return (cp >= 0x30 && cp <= 0x39); // 0..9
-	    },
-	    isHexDigit: function (cp) {
-	        return (cp >= 0x30 && cp <= 0x39) ||
-	            (cp >= 0x41 && cp <= 0x46) ||
-	            (cp >= 0x61 && cp <= 0x66); // a..f
-	    },
-	    isOctalDigit: function (cp) {
-	        return (cp >= 0x30 && cp <= 0x37); // 0..7
-	    }
-	};
-
-
-/***/ },
-/* 5 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var jsx_syntax_1 = __webpack_require__(6);
-	/* tslint:disable:max-classes-per-file */
-	var JSXClosingElement = (function () {
-	    function JSXClosingElement(name) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXClosingElement;
-	        this.name = name;
-	    }
-	    return JSXClosingElement;
-	}());
-	exports.JSXClosingElement = JSXClosingElement;
-	var JSXElement = (function () {
-	    function JSXElement(openingElement, children, closingElement) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXElement;
-	        this.openingElement = openingElement;
-	        this.children = children;
-	        this.closingElement = closingElement;
-	    }
-	    return JSXElement;
-	}());
-	exports.JSXElement = JSXElement;
-	var JSXEmptyExpression = (function () {
-	    function JSXEmptyExpression() {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXEmptyExpression;
-	    }
-	    return JSXEmptyExpression;
-	}());
-	exports.JSXEmptyExpression = JSXEmptyExpression;
-	var JSXExpressionContainer = (function () {
-	    function JSXExpressionContainer(expression) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXExpressionContainer;
-	        this.expression = expression;
-	    }
-	    return JSXExpressionContainer;
-	}());
-	exports.JSXExpressionContainer = JSXExpressionContainer;
-	var JSXIdentifier = (function () {
-	    function JSXIdentifier(name) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXIdentifier;
-	        this.name = name;
-	    }
-	    return JSXIdentifier;
-	}());
-	exports.JSXIdentifier = JSXIdentifier;
-	var JSXMemberExpression = (function () {
-	    function JSXMemberExpression(object, property) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXMemberExpression;
-	        this.object = object;
-	        this.property = property;
-	    }
-	    return JSXMemberExpression;
-	}());
-	exports.JSXMemberExpression = JSXMemberExpression;
-	var JSXAttribute = (function () {
-	    function JSXAttribute(name, value) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXAttribute;
-	        this.name = name;
-	        this.value = value;
-	    }
-	    return JSXAttribute;
-	}());
-	exports.JSXAttribute = JSXAttribute;
-	var JSXNamespacedName = (function () {
-	    function JSXNamespacedName(namespace, name) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXNamespacedName;
-	        this.namespace = namespace;
-	        this.name = name;
-	    }
-	    return JSXNamespacedName;
-	}());
-	exports.JSXNamespacedName = JSXNamespacedName;
-	var JSXOpeningElement = (function () {
-	    function JSXOpeningElement(name, selfClosing, attributes) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXOpeningElement;
-	        this.name = name;
-	        this.selfClosing = selfClosing;
-	        this.attributes = attributes;
-	    }
-	    return JSXOpeningElement;
-	}());
-	exports.JSXOpeningElement = JSXOpeningElement;
-	var JSXSpreadAttribute = (function () {
-	    function JSXSpreadAttribute(argument) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXSpreadAttribute;
-	        this.argument = argument;
-	    }
-	    return JSXSpreadAttribute;
-	}());
-	exports.JSXSpreadAttribute = JSXSpreadAttribute;
-	var JSXText = (function () {
-	    function JSXText(value, raw) {
-	        this.type = jsx_syntax_1.JSXSyntax.JSXText;
-	        this.value = value;
-	        this.raw = raw;
-	    }
-	    return JSXText;
-	}());
-	exports.JSXText = JSXText;
-
-
-/***/ },
-/* 6 */
-/***/ function(module, exports) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	exports.JSXSyntax = {
-	    JSXAttribute: 'JSXAttribute',
-	    JSXClosingElement: 'JSXClosingElement',
-	    JSXElement: 'JSXElement',
-	    JSXEmptyExpression: 'JSXEmptyExpression',
-	    JSXExpressionContainer: 'JSXExpressionContainer',
-	    JSXIdentifier: 'JSXIdentifier',
-	    JSXMemberExpression: 'JSXMemberExpression',
-	    JSXNamespacedName: 'JSXNamespacedName',
-	    JSXOpeningElement: 'JSXOpeningElement',
-	    JSXSpreadAttribute: 'JSXSpreadAttribute',
-	    JSXText: 'JSXText'
-	};
-
-
-/***/ },
-/* 7 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var syntax_1 = __webpack_require__(2);
-	/* tslint:disable:max-classes-per-file */
-	var ArrayExpression = (function () {
-	    function ArrayExpression(elements) {
-	        this.type = syntax_1.Syntax.ArrayExpression;
-	        this.elements = elements;
-	    }
-	    return ArrayExpression;
-	}());
-	exports.ArrayExpression = ArrayExpression;
-	var ArrayPattern = (function () {
-	    function ArrayPattern(elements) {
-	        this.type = syntax_1.Syntax.ArrayPattern;
-	        this.elements = elements;
-	    }
-	    return ArrayPattern;
-	}());
-	exports.ArrayPattern = ArrayPattern;
-	var ArrowFunctionExpression = (function () {
-	    function ArrowFunctionExpression(params, body, expression) {
-	        this.type = syntax_1.Syntax.ArrowFunctionExpression;
-	        this.id = null;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = false;
-	        this.expression = expression;
-	        this.async = false;
-	    }
-	    return ArrowFunctionExpression;
-	}());
-	exports.ArrowFunctionExpression = ArrowFunctionExpression;
-	var AssignmentExpression = (function () {
-	    function AssignmentExpression(operator, left, right) {
-	        this.type = syntax_1.Syntax.AssignmentExpression;
-	        this.operator = operator;
-	        this.left = left;
-	        this.right = right;
-	    }
-	    return AssignmentExpression;
-	}());
-	exports.AssignmentExpression = AssignmentExpression;
-	var AssignmentPattern = (function () {
-	    function AssignmentPattern(left, right) {
-	        this.type = syntax_1.Syntax.AssignmentPattern;
-	        this.left = left;
-	        this.right = right;
-	    }
-	    return AssignmentPattern;
-	}());
-	exports.AssignmentPattern = AssignmentPattern;
-	var AsyncArrowFunctionExpression = (function () {
-	    function AsyncArrowFunctionExpression(params, body, expression) {
-	        this.type = syntax_1.Syntax.ArrowFunctionExpression;
-	        this.id = null;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = false;
-	        this.expression = expression;
-	        this.async = true;
-	    }
-	    return AsyncArrowFunctionExpression;
-	}());
-	exports.AsyncArrowFunctionExpression = AsyncArrowFunctionExpression;
-	var AsyncFunctionDeclaration = (function () {
-	    function AsyncFunctionDeclaration(id, params, body) {
-	        this.type = syntax_1.Syntax.FunctionDeclaration;
-	        this.id = id;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = false;
-	        this.expression = false;
-	        this.async = true;
-	    }
-	    return AsyncFunctionDeclaration;
-	}());
-	exports.AsyncFunctionDeclaration = AsyncFunctionDeclaration;
-	var AsyncFunctionExpression = (function () {
-	    function AsyncFunctionExpression(id, params, body) {
-	        this.type = syntax_1.Syntax.FunctionExpression;
-	        this.id = id;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = false;
-	        this.expression = false;
-	        this.async = true;
-	    }
-	    return AsyncFunctionExpression;
-	}());
-	exports.AsyncFunctionExpression = AsyncFunctionExpression;
-	var AwaitExpression = (function () {
-	    function AwaitExpression(argument) {
-	        this.type = syntax_1.Syntax.AwaitExpression;
-	        this.argument = argument;
-	    }
-	    return AwaitExpression;
-	}());
-	exports.AwaitExpression = AwaitExpression;
-	var BinaryExpression = (function () {
-	    function BinaryExpression(operator, left, right) {
-	        var logical = (operator === '||' || operator === '&&');
-	        this.type = logical ? syntax_1.Syntax.LogicalExpression : syntax_1.Syntax.BinaryExpression;
-	        this.operator = operator;
-	        this.left = left;
-	        this.right = right;
-	    }
-	    return BinaryExpression;
-	}());
-	exports.BinaryExpression = BinaryExpression;
-	var BlockStatement = (function () {
-	    function BlockStatement(body) {
-	        this.type = syntax_1.Syntax.BlockStatement;
-	        this.body = body;
-	    }
-	    return BlockStatement;
-	}());
-	exports.BlockStatement = BlockStatement;
-	var BreakStatement = (function () {
-	    function BreakStatement(label) {
-	        this.type = syntax_1.Syntax.BreakStatement;
-	        this.label = label;
-	    }
-	    return BreakStatement;
-	}());
-	exports.BreakStatement = BreakStatement;
-	var CallExpression = (function () {
-	    function CallExpression(callee, args) {
-	        this.type = syntax_1.Syntax.CallExpression;
-	        this.callee = callee;
-	        this.arguments = args;
-	    }
-	    return CallExpression;
-	}());
-	exports.CallExpression = CallExpression;
-	var CatchClause = (function () {
-	    function CatchClause(param, body) {
-	        this.type = syntax_1.Syntax.CatchClause;
-	        this.param = param;
-	        this.body = body;
-	    }
-	    return CatchClause;
-	}());
-	exports.CatchClause = CatchClause;
-	var ClassBody = (function () {
-	    function ClassBody(body) {
-	        this.type = syntax_1.Syntax.ClassBody;
-	        this.body = body;
-	    }
-	    return ClassBody;
-	}());
-	exports.ClassBody = ClassBody;
-	var ClassDeclaration = (function () {
-	    function ClassDeclaration(id, superClass, body) {
-	        this.type = syntax_1.Syntax.ClassDeclaration;
-	        this.id = id;
-	        this.superClass = superClass;
-	        this.body = body;
-	    }
-	    return ClassDeclaration;
-	}());
-	exports.ClassDeclaration = ClassDeclaration;
-	var ClassExpression = (function () {
-	    function ClassExpression(id, superClass, body) {
-	        this.type = syntax_1.Syntax.ClassExpression;
-	        this.id = id;
-	        this.superClass = superClass;
-	        this.body = body;
-	    }
-	    return ClassExpression;
-	}());
-	exports.ClassExpression = ClassExpression;
-	var ComputedMemberExpression = (function () {
-	    function ComputedMemberExpression(object, property) {
-	        this.type = syntax_1.Syntax.MemberExpression;
-	        this.computed = true;
-	        this.object = object;
-	        this.property = property;
-	    }
-	    return ComputedMemberExpression;
-	}());
-	exports.ComputedMemberExpression = ComputedMemberExpression;
-	var ConditionalExpression = (function () {
-	    function ConditionalExpression(test, consequent, alternate) {
-	        this.type = syntax_1.Syntax.ConditionalExpression;
-	        this.test = test;
-	        this.consequent = consequent;
-	        this.alternate = alternate;
-	    }
-	    return ConditionalExpression;
-	}());
-	exports.ConditionalExpression = ConditionalExpression;
-	var ContinueStatement = (function () {
-	    function ContinueStatement(label) {
-	        this.type = syntax_1.Syntax.ContinueStatement;
-	        this.label = label;
-	    }
-	    return ContinueStatement;
-	}());
-	exports.ContinueStatement = ContinueStatement;
-	var DebuggerStatement = (function () {
-	    function DebuggerStatement() {
-	        this.type = syntax_1.Syntax.DebuggerStatement;
-	    }
-	    return DebuggerStatement;
-	}());
-	exports.DebuggerStatement = DebuggerStatement;
-	var Directive = (function () {
-	    function Directive(expression, directive) {
-	        this.type = syntax_1.Syntax.ExpressionStatement;
-	        this.expression = expression;
-	        this.directive = directive;
-	    }
-	    return Directive;
-	}());
-	exports.Directive = Directive;
-	var DoWhileStatement = (function () {
-	    function DoWhileStatement(body, test) {
-	        this.type = syntax_1.Syntax.DoWhileStatement;
-	        this.body = body;
-	        this.test = test;
-	    }
-	    return DoWhileStatement;
-	}());
-	exports.DoWhileStatement = DoWhileStatement;
-	var EmptyStatement = (function () {
-	    function EmptyStatement() {
-	        this.type = syntax_1.Syntax.EmptyStatement;
-	    }
-	    return EmptyStatement;
-	}());
-	exports.EmptyStatement = EmptyStatement;
-	var ExportAllDeclaration = (function () {
-	    function ExportAllDeclaration(source) {
-	        this.type = syntax_1.Syntax.ExportAllDeclaration;
-	        this.source = source;
-	    }
-	    return ExportAllDeclaration;
-	}());
-	exports.ExportAllDeclaration = ExportAllDeclaration;
-	var ExportDefaultDeclaration = (function () {
-	    function ExportDefaultDeclaration(declaration) {
-	        this.type = syntax_1.Syntax.ExportDefaultDeclaration;
-	        this.declaration = declaration;
-	    }
-	    return ExportDefaultDeclaration;
-	}());
-	exports.ExportDefaultDeclaration = ExportDefaultDeclaration;
-	var ExportNamedDeclaration = (function () {
-	    function ExportNamedDeclaration(declaration, specifiers, source) {
-	        this.type = syntax_1.Syntax.ExportNamedDeclaration;
-	        this.declaration = declaration;
-	        this.specifiers = specifiers;
-	        this.source = source;
-	    }
-	    return ExportNamedDeclaration;
-	}());
-	exports.ExportNamedDeclaration = ExportNamedDeclaration;
-	var ExportSpecifier = (function () {
-	    function ExportSpecifier(local, exported) {
-	        this.type = syntax_1.Syntax.ExportSpecifier;
-	        this.exported = exported;
-	        this.local = local;
-	    }
-	    return ExportSpecifier;
-	}());
-	exports.ExportSpecifier = ExportSpecifier;
-	var ExpressionStatement = (function () {
-	    function ExpressionStatement(expression) {
-	        this.type = syntax_1.Syntax.ExpressionStatement;
-	        this.expression = expression;
-	    }
-	    return ExpressionStatement;
-	}());
-	exports.ExpressionStatement = ExpressionStatement;
-	var ForInStatement = (function () {
-	    function ForInStatement(left, right, body) {
-	        this.type = syntax_1.Syntax.ForInStatement;
-	        this.left = left;
-	        this.right = right;
-	        this.body = body;
-	        this.each = false;
-	    }
-	    return ForInStatement;
-	}());
-	exports.ForInStatement = ForInStatement;
-	var ForOfStatement = (function () {
-	    function ForOfStatement(left, right, body) {
-	        this.type = syntax_1.Syntax.ForOfStatement;
-	        this.left = left;
-	        this.right = right;
-	        this.body = body;
-	    }
-	    return ForOfStatement;
-	}());
-	exports.ForOfStatement = ForOfStatement;
-	var ForStatement = (function () {
-	    function ForStatement(init, test, update, body) {
-	        this.type = syntax_1.Syntax.ForStatement;
-	        this.init = init;
-	        this.test = test;
-	        this.update = update;
-	        this.body = body;
-	    }
-	    return ForStatement;
-	}());
-	exports.ForStatement = ForStatement;
-	var FunctionDeclaration = (function () {
-	    function FunctionDeclaration(id, params, body, generator) {
-	        this.type = syntax_1.Syntax.FunctionDeclaration;
-	        this.id = id;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = generator;
-	        this.expression = false;
-	        this.async = false;
-	    }
-	    return FunctionDeclaration;
-	}());
-	exports.FunctionDeclaration = FunctionDeclaration;
-	var FunctionExpression = (function () {
-	    function FunctionExpression(id, params, body, generator) {
-	        this.type = syntax_1.Syntax.FunctionExpression;
-	        this.id = id;
-	        this.params = params;
-	        this.body = body;
-	        this.generator = generator;
-	        this.expression = false;
-	        this.async = false;
-	    }
-	    return FunctionExpression;
-	}());
-	exports.FunctionExpression = FunctionExpression;
-	var Identifier = (function () {
-	    function Identifier(name) {
-	        this.type = syntax_1.Syntax.Identifier;
-	        this.name = name;
-	    }
-	    return Identifier;
-	}());
-	exports.Identifier = Identifier;
-	var IfStatement = (function () {
-	    function IfStatement(test, consequent, alternate) {
-	        this.type = syntax_1.Syntax.IfStatement;
-	        this.test = test;
-	        this.consequent = consequent;
-	        this.alternate = alternate;
-	    }
-	    return IfStatement;
-	}());
-	exports.IfStatement = IfStatement;
-	var ImportDeclaration = (function () {
-	    function ImportDeclaration(specifiers, source) {
-	        this.type = syntax_1.Syntax.ImportDeclaration;
-	        this.specifiers = specifiers;
-	        this.source = source;
-	    }
-	    return ImportDeclaration;
-	}());
-	exports.ImportDeclaration = ImportDeclaration;
-	var ImportDefaultSpecifier = (function () {
-	    function ImportDefaultSpecifier(local) {
-	        this.type = syntax_1.Syntax.ImportDefaultSpecifier;
-	        this.local = local;
-	    }
-	    return ImportDefaultSpecifier;
-	}());
-	exports.ImportDefaultSpecifier = ImportDefaultSpecifier;
-	var ImportNamespaceSpecifier = (function () {
-	    function ImportNamespaceSpecifier(local) {
-	        this.type = syntax_1.Syntax.ImportNamespaceSpecifier;
-	        this.local = local;
-	    }
-	    return ImportNamespaceSpecifier;
-	}());
-	exports.ImportNamespaceSpecifier = ImportNamespaceSpecifier;
-	var ImportSpecifier = (function () {
-	    function ImportSpecifier(local, imported) {
-	        this.type = syntax_1.Syntax.ImportSpecifier;
-	        this.local = local;
-	        this.imported = imported;
-	    }
-	    return ImportSpecifier;
-	}());
-	exports.ImportSpecifier = ImportSpecifier;
-	var LabeledStatement = (function () {
-	    function LabeledStatement(label, body) {
-	        this.type = syntax_1.Syntax.LabeledStatement;
-	        this.label = label;
-	        this.body = body;
-	    }
-	    return LabeledStatement;
-	}());
-	exports.LabeledStatement = LabeledStatement;
-	var Literal = (function () {
-	    function Literal(value, raw) {
-	        this.type = syntax_1.Syntax.Literal;
-	        this.value = value;
-	        this.raw = raw;
-	    }
-	    return Literal;
-	}());
-	exports.Literal = Literal;
-	var MetaProperty = (function () {
-	    function MetaProperty(meta, property) {
-	        this.type = syntax_1.Syntax.MetaProperty;
-	        this.meta = meta;
-	        this.property = property;
-	    }
-	    return MetaProperty;
-	}());
-	exports.MetaProperty = MetaProperty;
-	var MethodDefinition = (function () {
-	    function MethodDefinition(key, computed, value, kind, isStatic) {
-	        this.type = syntax_1.Syntax.MethodDefinition;
-	        this.key = key;
-	        this.computed = computed;
-	        this.value = value;
-	        this.kind = kind;
-	        this.static = isStatic;
-	    }
-	    return MethodDefinition;
-	}());
-	exports.MethodDefinition = MethodDefinition;
-	var Module = (function () {
-	    function Module(body) {
-	        this.type = syntax_1.Syntax.Program;
-	        this.body = body;
-	        this.sourceType = 'module';
-	    }
-	    return Module;
-	}());
-	exports.Module = Module;
-	var NewExpression = (function () {
-	    function NewExpression(callee, args) {
-	        this.type = syntax_1.Syntax.NewExpression;
-	        this.callee = callee;
-	        this.arguments = args;
-	    }
-	    return NewExpression;
-	}());
-	exports.NewExpression = NewExpression;
-	var ObjectExpression = (function () {
-	    function ObjectExpression(properties) {
-	        this.type = syntax_1.Syntax.ObjectExpression;
-	        this.properties = properties;
-	    }
-	    return ObjectExpression;
-	}());
-	exports.ObjectExpression = ObjectExpression;
-	var ObjectPattern = (function () {
-	    function ObjectPattern(properties) {
-	        this.type = syntax_1.Syntax.ObjectPattern;
-	        this.properties = properties;
-	    }
-	    return ObjectPattern;
-	}());
-	exports.ObjectPattern = ObjectPattern;
-	var Property = (function () {
-	    function Property(kind, key, computed, value, method, shorthand) {
-	        this.type = syntax_1.Syntax.Property;
-	        this.key = key;
-	        this.computed = computed;
-	        this.value = value;
-	        this.kind = kind;
-	        this.method = method;
-	        this.shorthand = shorthand;
-	    }
-	    return Property;
-	}());
-	exports.Property = Property;
-	var RegexLiteral = (function () {
-	    function RegexLiteral(value, raw, pattern, flags) {
-	        this.type = syntax_1.Syntax.Literal;
-	        this.value = value;
-	        this.raw = raw;
-	        this.regex = { pattern: pattern, flags: flags };
-	    }
-	    return RegexLiteral;
-	}());
-	exports.RegexLiteral = RegexLiteral;
-	var RestElement = (function () {
-	    function RestElement(argument) {
-	        this.type = syntax_1.Syntax.RestElement;
-	        this.argument = argument;
-	    }
-	    return RestElement;
-	}());
-	exports.RestElement = RestElement;
-	var ReturnStatement = (function () {
-	    function ReturnStatement(argument) {
-	        this.type = syntax_1.Syntax.ReturnStatement;
-	        this.argument = argument;
-	    }
-	    return ReturnStatement;
-	}());
-	exports.ReturnStatement = ReturnStatement;
-	var Script = (function () {
-	    function Script(body) {
-	        this.type = syntax_1.Syntax.Program;
-	        this.body = body;
-	        this.sourceType = 'script';
-	    }
-	    return Script;
-	}());
-	exports.Script = Script;
-	var SequenceExpression = (function () {
-	    function SequenceExpression(expressions) {
-	        this.type = syntax_1.Syntax.SequenceExpression;
-	        this.expressions = expressions;
-	    }
-	    return SequenceExpression;
-	}());
-	exports.SequenceExpression = SequenceExpression;
-	var SpreadElement = (function () {
-	    function SpreadElement(argument) {
-	        this.type = syntax_1.Syntax.SpreadElement;
-	        this.argument = argument;
-	    }
-	    return SpreadElement;
-	}());
-	exports.SpreadElement = SpreadElement;
-	var StaticMemberExpression = (function () {
-	    function StaticMemberExpression(object, property) {
-	        this.type = syntax_1.Syntax.MemberExpression;
-	        this.computed = false;
-	        this.object = object;
-	        this.property = property;
-	    }
-	    return StaticMemberExpression;
-	}());
-	exports.StaticMemberExpression = StaticMemberExpression;
-	var Super = (function () {
-	    function Super() {
-	        this.type = syntax_1.Syntax.Super;
-	    }
-	    return Super;
-	}());
-	exports.Super = Super;
-	var SwitchCase = (function () {
-	    function SwitchCase(test, consequent) {
-	        this.type = syntax_1.Syntax.SwitchCase;
-	        this.test = test;
-	        this.consequent = consequent;
-	    }
-	    return SwitchCase;
-	}());
-	exports.SwitchCase = SwitchCase;
-	var SwitchStatement = (function () {
-	    function SwitchStatement(discriminant, cases) {
-	        this.type = syntax_1.Syntax.SwitchStatement;
-	        this.discriminant = discriminant;
-	        this.cases = cases;
-	    }
-	    return SwitchStatement;
-	}());
-	exports.SwitchStatement = SwitchStatement;
-	var TaggedTemplateExpression = (function () {
-	    function TaggedTemplateExpression(tag, quasi) {
-	        this.type = syntax_1.Syntax.TaggedTemplateExpression;
-	        this.tag = tag;
-	        this.quasi = quasi;
-	    }
-	    return TaggedTemplateExpression;
-	}());
-	exports.TaggedTemplateExpression = TaggedTemplateExpression;
-	var TemplateElement = (function () {
-	    function TemplateElement(value, tail) {
-	        this.type = syntax_1.Syntax.TemplateElement;
-	        this.value = value;
-	        this.tail = tail;
-	    }
-	    return TemplateElement;
-	}());
-	exports.TemplateElement = TemplateElement;
-	var TemplateLiteral = (function () {
-	    function TemplateLiteral(quasis, expressions) {
-	        this.type = syntax_1.Syntax.TemplateLiteral;
-	        this.quasis = quasis;
-	        this.expressions = expressions;
-	    }
-	    return TemplateLiteral;
-	}());
-	exports.TemplateLiteral = TemplateLiteral;
-	var ThisExpression = (function () {
-	    function ThisExpression() {
-	        this.type = syntax_1.Syntax.ThisExpression;
-	    }
-	    return ThisExpression;
-	}());
-	exports.ThisExpression = ThisExpression;
-	var ThrowStatement = (function () {
-	    function ThrowStatement(argument) {
-	        this.type = syntax_1.Syntax.ThrowStatement;
-	        this.argument = argument;
-	    }
-	    return ThrowStatement;
-	}());
-	exports.ThrowStatement = ThrowStatement;
-	var TryStatement = (function () {
-	    function TryStatement(block, handler, finalizer) {
-	        this.type = syntax_1.Syntax.TryStatement;
-	        this.block = block;
-	        this.handler = handler;
-	        this.finalizer = finalizer;
-	    }
-	    return TryStatement;
-	}());
-	exports.TryStatement = TryStatement;
-	var UnaryExpression = (function () {
-	    function UnaryExpression(operator, argument) {
-	        this.type = syntax_1.Syntax.UnaryExpression;
-	        this.operator = operator;
-	        this.argument = argument;
-	        this.prefix = true;
-	    }
-	    return UnaryExpression;
-	}());
-	exports.UnaryExpression = UnaryExpression;
-	var UpdateExpression = (function () {
-	    function UpdateExpression(operator, argument, prefix) {
-	        this.type = syntax_1.Syntax.UpdateExpression;
-	        this.operator = operator;
-	        this.argument = argument;
-	        this.prefix = prefix;
-	    }
-	    return UpdateExpression;
-	}());
-	exports.UpdateExpression = UpdateExpression;
-	var VariableDeclaration = (function () {
-	    function VariableDeclaration(declarations, kind) {
-	        this.type = syntax_1.Syntax.VariableDeclaration;
-	        this.declarations = declarations;
-	        this.kind = kind;
-	    }
-	    return VariableDeclaration;
-	}());
-	exports.VariableDeclaration = VariableDeclaration;
-	var VariableDeclarator = (function () {
-	    function VariableDeclarator(id, init) {
-	        this.type = syntax_1.Syntax.VariableDeclarator;
-	        this.id = id;
-	        this.init = init;
-	    }
-	    return VariableDeclarator;
-	}());
-	exports.VariableDeclarator = VariableDeclarator;
-	var WhileStatement = (function () {
-	    function WhileStatement(test, body) {
-	        this.type = syntax_1.Syntax.WhileStatement;
-	        this.test = test;
-	        this.body = body;
-	    }
-	    return WhileStatement;
-	}());
-	exports.WhileStatement = WhileStatement;
-	var WithStatement = (function () {
-	    function WithStatement(object, body) {
-	        this.type = syntax_1.Syntax.WithStatement;
-	        this.object = object;
-	        this.body = body;
-	    }
-	    return WithStatement;
-	}());
-	exports.WithStatement = WithStatement;
-	var YieldExpression = (function () {
-	    function YieldExpression(argument, delegate) {
-	        this.type = syntax_1.Syntax.YieldExpression;
-	        this.argument = argument;
-	        this.delegate = delegate;
-	    }
-	    return YieldExpression;
-	}());
-	exports.YieldExpression = YieldExpression;
-
-
-/***/ },
-/* 8 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var assert_1 = __webpack_require__(9);
-	var error_handler_1 = __webpack_require__(10);
-	var messages_1 = __webpack_require__(11);
-	var Node = __webpack_require__(7);
-	var scanner_1 = __webpack_require__(12);
-	var syntax_1 = __webpack_require__(2);
-	var token_1 = __webpack_require__(13);
-	var ArrowParameterPlaceHolder = 'ArrowParameterPlaceHolder';
-	var Parser = (function () {
-	    function Parser(code, options, delegate) {
-	        if (options === void 0) { options = {}; }
-	        this.config = {
-	            range: (typeof options.range === 'boolean') && options.range,
-	            loc: (typeof options.loc === 'boolean') && options.loc,
-	            source: null,
-	            tokens: (typeof options.tokens === 'boolean') && options.tokens,
-	            comment: (typeof options.comment === 'boolean') && options.comment,
-	            tolerant: (typeof options.tolerant === 'boolean') && options.tolerant
-	        };
-	        if (this.config.loc && options.source && options.source !== null) {
-	            this.config.source = String(options.source);
-	        }
-	        this.delegate = delegate;
-	        this.errorHandler = new error_handler_1.ErrorHandler();
-	        this.errorHandler.tolerant = this.config.tolerant;
-	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
-	        this.scanner.trackComment = this.config.comment;
-	        this.operatorPrecedence = {
-	            ')': 0,
-	            ';': 0,
-	            ',': 0,
-	            '=': 0,
-	            ']': 0,
-	            '||': 1,
-	            '&&': 2,
-	            '|': 3,
-	            '^': 4,
-	            '&': 5,
-	            '==': 6,
-	            '!=': 6,
-	            '===': 6,
-	            '!==': 6,
-	            '<': 7,
-	            '>': 7,
-	            '<=': 7,
-	            '>=': 7,
-	            '<<': 8,
-	            '>>': 8,
-	            '>>>': 8,
-	            '+': 9,
-	            '-': 9,
-	            '*': 11,
-	            '/': 11,
-	            '%': 11
-	        };
-	        this.lookahead = {
-	            type: 2 /* EOF */,
-	            value: '',
-	            lineNumber: this.scanner.lineNumber,
-	            lineStart: 0,
-	            start: 0,
-	            end: 0
-	        };
-	        this.hasLineTerminator = false;
-	        this.context = {
-	            isModule: false,
-	            await: false,
-	            allowIn: true,
-	            allowStrictDirective: true,
-	            allowYield: true,
-	            firstCoverInitializedNameError: null,
-	            isAssignmentTarget: false,
-	            isBindingElement: false,
-	            inFunctionBody: false,
-	            inIteration: false,
-	            inSwitch: false,
-	            labelSet: {},
-	            strict: false
-	        };
-	        this.tokens = [];
-	        this.startMarker = {
-	            index: 0,
-	            line: this.scanner.lineNumber,
-	            column: 0
-	        };
-	        this.lastMarker = {
-	            index: 0,
-	            line: this.scanner.lineNumber,
-	            column: 0
-	        };
-	        this.nextToken();
-	        this.lastMarker = {
-	            index: this.scanner.index,
-	            line: this.scanner.lineNumber,
-	            column: this.scanner.index - this.scanner.lineStart
-	        };
-	    }
-	    Parser.prototype.throwError = function (messageFormat) {
-	        var values = [];
-	        for (var _i = 1; _i < arguments.length; _i++) {
-	            values[_i - 1] = arguments[_i];
-	        }
-	        var args = Array.prototype.slice.call(arguments, 1);
-	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
-	            assert_1.assert(idx < args.length, 'Message reference must be in range');
-	            return args[idx];
-	        });
-	        var index = this.lastMarker.index;
-	        var line = this.lastMarker.line;
-	        var column = this.lastMarker.column + 1;
-	        throw this.errorHandler.createError(index, line, column, msg);
-	    };
-	    Parser.prototype.tolerateError = function (messageFormat) {
-	        var values = [];
-	        for (var _i = 1; _i < arguments.length; _i++) {
-	            values[_i - 1] = arguments[_i];
-	        }
-	        var args = Array.prototype.slice.call(arguments, 1);
-	        var msg = messageFormat.replace(/%(\d)/g, function (whole, idx) {
-	            assert_1.assert(idx < args.length, 'Message reference must be in range');
-	            return args[idx];
-	        });
-	        var index = this.lastMarker.index;
-	        var line = this.scanner.lineNumber;
-	        var column = this.lastMarker.column + 1;
-	        this.errorHandler.tolerateError(index, line, column, msg);
-	    };
-	    // Throw an exception because of the token.
-	    Parser.prototype.unexpectedTokenError = function (token, message) {
-	        var msg = message || messages_1.Messages.UnexpectedToken;
-	        var value;
-	        if (token) {
-	            if (!message) {
-	                msg = (token.type === 2 /* EOF */) ? messages_1.Messages.UnexpectedEOS :
-	                    (token.type === 3 /* Identifier */) ? messages_1.Messages.UnexpectedIdentifier :
-	                        (token.type === 6 /* NumericLiteral */) ? messages_1.Messages.UnexpectedNumber :
-	                            (token.type === 8 /* StringLiteral */) ? messages_1.Messages.UnexpectedString :
-	                                (token.type === 10 /* Template */) ? messages_1.Messages.UnexpectedTemplate :
-	                                    messages_1.Messages.UnexpectedToken;
-	                if (token.type === 4 /* Keyword */) {
-	                    if (this.scanner.isFutureReservedWord(token.value)) {
-	                        msg = messages_1.Messages.UnexpectedReserved;
-	                    }
-	                    else if (this.context.strict && this.scanner.isStrictModeReservedWord(token.value)) {
-	                        msg = messages_1.Messages.StrictReservedWord;
-	                    }
-	                }
-	            }
-	            value = token.value;
-	        }
-	        else {
-	            value = 'ILLEGAL';
-	        }
-	        msg = msg.replace('%0', value);
-	        if (token && typeof token.lineNumber === 'number') {
-	            var index = token.start;
-	            var line = token.lineNumber;
-	            var lastMarkerLineStart = this.lastMarker.index - this.lastMarker.column;
-	            var column = token.start - lastMarkerLineStart + 1;
-	            return this.errorHandler.createError(index, line, column, msg);
-	        }
-	        else {
-	            var index = this.lastMarker.index;
-	            var line = this.lastMarker.line;
-	            var column = this.lastMarker.column + 1;
-	            return this.errorHandler.createError(index, line, column, msg);
-	        }
-	    };
-	    Parser.prototype.throwUnexpectedToken = function (token, message) {
-	        throw this.unexpectedTokenError(token, message);
-	    };
-	    Parser.prototype.tolerateUnexpectedToken = function (token, message) {
-	        this.errorHandler.tolerate(this.unexpectedTokenError(token, message));
-	    };
-	    Parser.prototype.collectComments = function () {
-	        if (!this.config.comment) {
-	            this.scanner.scanComments();
-	        }
-	        else {
-	            var comments = this.scanner.scanComments();
-	            if (comments.length > 0 && this.delegate) {
-	                for (var i = 0; i < comments.length; ++i) {
-	                    var e = comments[i];
-	                    var node = void 0;
-	                    node = {
-	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
-	                        value: this.scanner.source.slice(e.slice[0], e.slice[1])
-	                    };
-	                    if (this.config.range) {
-	                        node.range = e.range;
-	                    }
-	                    if (this.config.loc) {
-	                        node.loc = e.loc;
-	                    }
-	                    var metadata = {
-	                        start: {
-	                            line: e.loc.start.line,
-	                            column: e.loc.start.column,
-	                            offset: e.range[0]
-	                        },
-	                        end: {
-	                            line: e.loc.end.line,
-	                            column: e.loc.end.column,
-	                            offset: e.range[1]
-	                        }
-	                    };
-	                    this.delegate(node, metadata);
-	                }
-	            }
-	        }
-	    };
-	    // From internal representation to an external structure
-	    Parser.prototype.getTokenRaw = function (token) {
-	        return this.scanner.source.slice(token.start, token.end);
-	    };
-	    Parser.prototype.convertToken = function (token) {
-	        var t = {
-	            type: token_1.TokenName[token.type],
-	            value: this.getTokenRaw(token)
-	        };
-	        if (this.config.range) {
-	            t.range = [token.start, token.end];
-	        }
-	        if (this.config.loc) {
-	            t.loc = {
-	                start: {
-	                    line: this.startMarker.line,
-	                    column: this.startMarker.column
-	                },
-	                end: {
-	                    line: this.scanner.lineNumber,
-	                    column: this.scanner.index - this.scanner.lineStart
-	                }
-	            };
-	        }
-	        if (token.type === 9 /* RegularExpression */) {
-	            var pattern = token.pattern;
-	            var flags = token.flags;
-	            t.regex = { pattern: pattern, flags: flags };
-	        }
-	        return t;
-	    };
-	    Parser.prototype.nextToken = function () {
-	        var token = this.lookahead;
-	        this.lastMarker.index = this.scanner.index;
-	        this.lastMarker.line = this.scanner.lineNumber;
-	        this.lastMarker.column = this.scanner.index - this.scanner.lineStart;
-	        this.collectComments();
-	        if (this.scanner.index !== this.startMarker.index) {
-	            this.startMarker.index = this.scanner.index;
-	            this.startMarker.line = this.scanner.lineNumber;
-	            this.startMarker.column = this.scanner.index - this.scanner.lineStart;
-	        }
-	        var next = this.scanner.lex();
-	        this.hasLineTerminator = (token.lineNumber !== next.lineNumber);
-	        if (next && this.context.strict && next.type === 3 /* Identifier */) {
-	            if (this.scanner.isStrictModeReservedWord(next.value)) {
-	                next.type = 4 /* Keyword */;
-	            }
-	        }
-	        this.lookahead = next;
-	        if (this.config.tokens && next.type !== 2 /* EOF */) {
-	            this.tokens.push(this.convertToken(next));
-	        }
-	        return token;
-	    };
-	    Parser.prototype.nextRegexToken = function () {
-	        this.collectComments();
-	        var token = this.scanner.scanRegExp();
-	        if (this.config.tokens) {
-	            // Pop the previous token, '/' or '/='
-	            // This is added from the lookahead token.
-	            this.tokens.pop();
-	            this.tokens.push(this.convertToken(token));
-	        }
-	        // Prime the next lookahead.
-	        this.lookahead = token;
-	        this.nextToken();
-	        return token;
-	    };
-	    Parser.prototype.createNode = function () {
-	        return {
-	            index: this.startMarker.index,
-	            line: this.startMarker.line,
-	            column: this.startMarker.column
-	        };
-	    };
-	    Parser.prototype.startNode = function (token, lastLineStart) {
-	        if (lastLineStart === void 0) { lastLineStart = 0; }
-	        var column = token.start - token.lineStart;
-	        var line = token.lineNumber;
-	        if (column < 0) {
-	            column += lastLineStart;
-	            line--;
-	        }
-	        return {
-	            index: token.start,
-	            line: line,
-	            column: column
-	        };
-	    };
-	    Parser.prototype.finalize = function (marker, node) {
-	        if (this.config.range) {
-	            node.range = [marker.index, this.lastMarker.index];
-	        }
-	        if (this.config.loc) {
-	            node.loc = {
-	                start: {
-	                    line: marker.line,
-	                    column: marker.column,
-	                },
-	                end: {
-	                    line: this.lastMarker.line,
-	                    column: this.lastMarker.column
-	                }
-	            };
-	            if (this.config.source) {
-	                node.loc.source = this.config.source;
-	            }
-	        }
-	        if (this.delegate) {
-	            var metadata = {
-	                start: {
-	                    line: marker.line,
-	                    column: marker.column,
-	                    offset: marker.index
-	                },
-	                end: {
-	                    line: this.lastMarker.line,
-	                    column: this.lastMarker.column,
-	                    offset: this.lastMarker.index
-	                }
-	            };
-	            this.delegate(node, metadata);
-	        }
-	        return node;
-	    };
-	    // Expect the next token to match the specified punctuator.
-	    // If not, an exception will be thrown.
-	    Parser.prototype.expect = function (value) {
-	        var token = this.nextToken();
-	        if (token.type !== 7 /* Punctuator */ || token.value !== value) {
-	            this.throwUnexpectedToken(token);
-	        }
-	    };
-	    // Quietly expect a comma when in tolerant mode, otherwise delegates to expect().
-	    Parser.prototype.expectCommaSeparator = function () {
-	        if (this.config.tolerant) {
-	            var token = this.lookahead;
-	            if (token.type === 7 /* Punctuator */ && token.value === ',') {
-	                this.nextToken();
-	            }
-	            else if (token.type === 7 /* Punctuator */ && token.value === ';') {
-	                this.nextToken();
-	                this.tolerateUnexpectedToken(token);
-	            }
-	            else {
-	                this.tolerateUnexpectedToken(token, messages_1.Messages.UnexpectedToken);
-	            }
-	        }
-	        else {
-	            this.expect(',');
-	        }
-	    };
-	    // Expect the next token to match the specified keyword.
-	    // If not, an exception will be thrown.
-	    Parser.prototype.expectKeyword = function (keyword) {
-	        var token = this.nextToken();
-	        if (token.type !== 4 /* Keyword */ || token.value !== keyword) {
-	            this.throwUnexpectedToken(token);
-	        }
-	    };
-	    // Return true if the next token matches the specified punctuator.
-	    Parser.prototype.match = function (value) {
-	        return this.lookahead.type === 7 /* Punctuator */ && this.lookahead.value === value;
-	    };
-	    // Return true if the next token matches the specified keyword
-	    Parser.prototype.matchKeyword = function (keyword) {
-	        return this.lookahead.type === 4 /* Keyword */ && this.lookahead.value === keyword;
-	    };
-	    // Return true if the next token matches the specified contextual keyword
-	    // (where an identifier is sometimes a keyword depending on the context)
-	    Parser.prototype.matchContextualKeyword = function (keyword) {
-	        return this.lookahead.type === 3 /* Identifier */ && this.lookahead.value === keyword;
-	    };
-	    // Return true if the next token is an assignment operator
-	    Parser.prototype.matchAssign = function () {
-	        if (this.lookahead.type !== 7 /* Punctuator */) {
-	            return false;
-	        }
-	        var op = this.lookahead.value;
-	        return op === '=' ||
-	            op === '*=' ||
-	            op === '**=' ||
-	            op === '/=' ||
-	            op === '%=' ||
-	            op === '+=' ||
-	            op === '-=' ||
-	            op === '<<=' ||
-	            op === '>>=' ||
-	            op === '>>>=' ||
-	            op === '&=' ||
-	            op === '^=' ||
-	            op === '|=';
-	    };
-	    // Cover grammar support.
-	    //
-	    // When an assignment expression position starts with an left parenthesis, the determination of the type
-	    // of the syntax is to be deferred arbitrarily long until the end of the parentheses pair (plus a lookahead)
-	    // or the first comma. This situation also defers the determination of all the expressions nested in the pair.
-	    //
-	    // There are three productions that can be parsed in a parentheses pair that needs to be determined
-	    // after the outermost pair is closed. They are:
-	    //
-	    //   1. AssignmentExpression
-	    //   2. BindingElements
-	    //   3. AssignmentTargets
-	    //
-	    // In order to avoid exponential backtracking, we use two flags to denote if the production can be
-	    // binding element or assignment target.
-	    //
-	    // The three productions have the relationship:
-	    //
-	    //   BindingElements ⊆ AssignmentTargets ⊆ AssignmentExpression
-	    //
-	    // with a single exception that CoverInitializedName when used directly in an Expression, generates
-	    // an early error. Therefore, we need the third state, firstCoverInitializedNameError, to track the
-	    // first usage of CoverInitializedName and report it when we reached the end of the parentheses pair.
-	    //
-	    // isolateCoverGrammar function runs the given parser function with a new cover grammar context, and it does not
-	    // effect the current flags. This means the production the parser parses is only used as an expression. Therefore
-	    // the CoverInitializedName check is conducted.
-	    //
-	    // inheritCoverGrammar function runs the given parse function with a new cover grammar context, and it propagates
-	    // the flags outside of the parser. This means the production the parser parses is used as a part of a potential
-	    // pattern. The CoverInitializedName check is deferred.
-	    Parser.prototype.isolateCoverGrammar = function (parseFunction) {
-	        var previousIsBindingElement = this.context.isBindingElement;
-	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
-	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
-	        this.context.isBindingElement = true;
-	        this.context.isAssignmentTarget = true;
-	        this.context.firstCoverInitializedNameError = null;
-	        var result = parseFunction.call(this);
-	        if (this.context.firstCoverInitializedNameError !== null) {
-	            this.throwUnexpectedToken(this.context.firstCoverInitializedNameError);
-	        }
-	        this.context.isBindingElement = previousIsBindingElement;
-	        this.context.isAssignmentTarget = previousIsAssignmentTarget;
-	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError;
-	        return result;
-	    };
-	    Parser.prototype.inheritCoverGrammar = function (parseFunction) {
-	        var previousIsBindingElement = this.context.isBindingElement;
-	        var previousIsAssignmentTarget = this.context.isAssignmentTarget;
-	        var previousFirstCoverInitializedNameError = this.context.firstCoverInitializedNameError;
-	        this.context.isBindingElement = true;
-	        this.context.isAssignmentTarget = true;
-	        this.context.firstCoverInitializedNameError = null;
-	        var result = parseFunction.call(this);
-	        this.context.isBindingElement = this.context.isBindingElement && previousIsBindingElement;
-	        this.context.isAssignmentTarget = this.context.isAssignmentTarget && previousIsAssignmentTarget;
-	        this.context.firstCoverInitializedNameError = previousFirstCoverInitializedNameError || this.context.firstCoverInitializedNameError;
-	        return result;
-	    };
-	    Parser.prototype.consumeSemicolon = function () {
-	        if (this.match(';')) {
-	            this.nextToken();
-	        }
-	        else if (!this.hasLineTerminator) {
-	            if (this.lookahead.type !== 2 /* EOF */ && !this.match('}')) {
-	                this.throwUnexpectedToken(this.lookahead);
-	            }
-	            this.lastMarker.index = this.startMarker.index;
-	            this.lastMarker.line = this.startMarker.line;
-	            this.lastMarker.column = this.startMarker.column;
-	        }
-	    };
-	    // https://tc39.github.io/ecma262/#sec-primary-expression
-	    Parser.prototype.parsePrimaryExpression = function () {
-	        var node = this.createNode();
-	        var expr;
-	        var token, raw;
-	        switch (this.lookahead.type) {
-	            case 3 /* Identifier */:
-	                if ((this.context.isModule || this.context.await) && this.lookahead.value === 'await') {
-	                    this.tolerateUnexpectedToken(this.lookahead);
-	                }
-	                expr = this.matchAsyncFunction() ? this.parseFunctionExpression() : this.finalize(node, new Node.Identifier(this.nextToken().value));
-	                break;
-	            case 6 /* NumericLiteral */:
-	            case 8 /* StringLiteral */:
-	                if (this.context.strict && this.lookahead.octal) {
-	                    this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.StrictOctalLiteral);
-	                }
-	                this.context.isAssignmentTarget = false;
-	                this.context.isBindingElement = false;
-	                token = this.nextToken();
-	                raw = this.getTokenRaw(token);
-	                expr = this.finalize(node, new Node.Literal(token.value, raw));
-	                break;
-	            case 1 /* BooleanLiteral */:
-	                this.context.isAssignmentTarget = false;
-	                this.context.isBindingElement = false;
-	                token = this.nextToken();
-	                raw = this.getTokenRaw(token);
-	                expr = this.finalize(node, new Node.Literal(token.value === 'true', raw));
-	                break;
-	            case 5 /* NullLiteral */:
-	                this.context.isAssignmentTarget = false;
-	                this.context.isBindingElement = false;
-	                token = this.nextToken();
-	                raw = this.getTokenRaw(token);
-	                expr = this.finalize(node, new Node.Literal(null, raw));
-	                break;
-	            case 10 /* Template */:
-	                expr = this.parseTemplateLiteral();
-	                break;
-	            case 7 /* Punctuator */:
-	                switch (this.lookahead.value) {
-	                    case '(':
-	                        this.context.isBindingElement = false;
-	                        expr = this.inheritCoverGrammar(this.parseGroupExpression);
-	                        break;
-	                    case '[':
-	                        expr = this.inheritCoverGrammar(this.parseArrayInitializer);
-	                        break;
-	                    case '{':
-	                        expr = this.inheritCoverGrammar(this.parseObjectInitializer);
-	                        break;
-	                    case '/':
-	                    case '/=':
-	                        this.context.isAssignmentTarget = false;
-	                        this.context.isBindingElement = false;
-	                        this.scanner.index = this.startMarker.index;
-	                        token = this.nextRegexToken();
-	                        raw = this.getTokenRaw(token);
-	                        expr = this.finalize(node, new Node.RegexLiteral(token.regex, raw, token.pattern, token.flags));
-	                        break;
-	                    default:
-	                        expr = this.throwUnexpectedToken(this.nextToken());
-	                }
-	                break;
-	            case 4 /* Keyword */:
-	                if (!this.context.strict && this.context.allowYield && this.matchKeyword('yield')) {
-	                    expr = this.parseIdentifierName();
-	                }
-	                else if (!this.context.strict && this.matchKeyword('let')) {
-	                    expr = this.finalize(node, new Node.Identifier(this.nextToken().value));
-	                }
-	                else {
-	                    this.context.isAssignmentTarget = false;
-	                    this.context.isBindingElement = false;
-	                    if (this.matchKeyword('function')) {
-	                        expr = this.parseFunctionExpression();
-	                    }
-	                    else if (this.matchKeyword('this')) {
-	                        this.nextToken();
-	                        expr = this.finalize(node, new Node.ThisExpression());
-	                    }
-	                    else if (this.matchKeyword('class')) {
-	                        expr = this.parseClassExpression();
-	                    }
-	                    else {
-	                        expr = this.throwUnexpectedToken(this.nextToken());
-	                    }
-	                }
-	                break;
-	            default:
-	                expr = this.throwUnexpectedToken(this.nextToken());
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-array-initializer
-	    Parser.prototype.parseSpreadElement = function () {
-	        var node = this.createNode();
-	        this.expect('...');
-	        var arg = this.inheritCoverGrammar(this.parseAssignmentExpression);
-	        return this.finalize(node, new Node.SpreadElement(arg));
-	    };
-	    Parser.prototype.parseArrayInitializer = function () {
-	        var node = this.createNode();
-	        var elements = [];
-	        this.expect('[');
-	        while (!this.match(']')) {
-	            if (this.match(',')) {
-	                this.nextToken();
-	                elements.push(null);
-	            }
-	            else if (this.match('...')) {
-	                var element = this.parseSpreadElement();
-	                if (!this.match(']')) {
-	                    this.context.isAssignmentTarget = false;
-	                    this.context.isBindingElement = false;
-	                    this.expect(',');
-	                }
-	                elements.push(element);
-	            }
-	            else {
-	                elements.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
-	                if (!this.match(']')) {
-	                    this.expect(',');
-	                }
-	            }
-	        }
-	        this.expect(']');
-	        return this.finalize(node, new Node.ArrayExpression(elements));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-object-initializer
-	    Parser.prototype.parsePropertyMethod = function (params) {
-	        this.context.isAssignmentTarget = false;
-	        this.context.isBindingElement = false;
-	        var previousStrict = this.context.strict;
-	        var previousAllowStrictDirective = this.context.allowStrictDirective;
-	        this.context.allowStrictDirective = params.simple;
-	        var body = this.isolateCoverGrammar(this.parseFunctionSourceElements);
-	        if (this.context.strict && params.firstRestricted) {
-	            this.tolerateUnexpectedToken(params.firstRestricted, params.message);
-	        }
-	        if (this.context.strict && params.stricted) {
-	            this.tolerateUnexpectedToken(params.stricted, params.message);
-	        }
-	        this.context.strict = previousStrict;
-	        this.context.allowStrictDirective = previousAllowStrictDirective;
-	        return body;
-	    };
-	    Parser.prototype.parsePropertyMethodFunction = function () {
-	        var isGenerator = false;
-	        var node = this.createNode();
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.allowYield = true;
-	        var params = this.parseFormalParameters();
-	        var method = this.parsePropertyMethod(params);
-	        this.context.allowYield = previousAllowYield;
-	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
-	    };
-	    Parser.prototype.parsePropertyMethodAsyncFunction = function () {
-	        var node = this.createNode();
-	        var previousAllowYield = this.context.allowYield;
-	        var previousAwait = this.context.await;
-	        this.context.allowYield = false;
-	        this.context.await = true;
-	        var params = this.parseFormalParameters();
-	        var method = this.parsePropertyMethod(params);
-	        this.context.allowYield = previousAllowYield;
-	        this.context.await = previousAwait;
-	        return this.finalize(node, new Node.AsyncFunctionExpression(null, params.params, method));
-	    };
-	    Parser.prototype.parseObjectPropertyKey = function () {
-	        var node = this.createNode();
-	        var token = this.nextToken();
-	        var key;
-	        switch (token.type) {
-	            case 8 /* StringLiteral */:
-	            case 6 /* NumericLiteral */:
-	                if (this.context.strict && token.octal) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictOctalLiteral);
-	                }
-	                var raw = this.getTokenRaw(token);
-	                key = this.finalize(node, new Node.Literal(token.value, raw));
-	                break;
-	            case 3 /* Identifier */:
-	            case 1 /* BooleanLiteral */:
-	            case 5 /* NullLiteral */:
-	            case 4 /* Keyword */:
-	                key = this.finalize(node, new Node.Identifier(token.value));
-	                break;
-	            case 7 /* Punctuator */:
-	                if (token.value === '[') {
-	                    key = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                    this.expect(']');
-	                }
-	                else {
-	                    key = this.throwUnexpectedToken(token);
-	                }
-	                break;
-	            default:
-	                key = this.throwUnexpectedToken(token);
-	        }
-	        return key;
-	    };
-	    Parser.prototype.isPropertyKey = function (key, value) {
-	        return (key.type === syntax_1.Syntax.Identifier && key.name === value) ||
-	            (key.type === syntax_1.Syntax.Literal && key.value === value);
-	    };
-	    Parser.prototype.parseObjectProperty = function (hasProto) {
-	        var node = this.createNode();
-	        var token = this.lookahead;
-	        var kind;
-	        var key = null;
-	        var value = null;
-	        var computed = false;
-	        var method = false;
-	        var shorthand = false;
-	        var isAsync = false;
-	        if (token.type === 3 /* Identifier */) {
-	            var id = token.value;
-	            this.nextToken();
-	            computed = this.match('[');
-	            isAsync = !this.hasLineTerminator && (id === 'async') &&
-	                !this.match(':') && !this.match('(') && !this.match('*') && !this.match(',');
-	            key = isAsync ? this.parseObjectPropertyKey() : this.finalize(node, new Node.Identifier(id));
-	        }
-	        else if (this.match('*')) {
-	            this.nextToken();
-	        }
-	        else {
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	        }
-	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
-	        if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'get' && lookaheadPropertyKey) {
-	            kind = 'get';
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            this.context.allowYield = false;
-	            value = this.parseGetterMethod();
-	        }
-	        else if (token.type === 3 /* Identifier */ && !isAsync && token.value === 'set' && lookaheadPropertyKey) {
-	            kind = 'set';
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            value = this.parseSetterMethod();
-	        }
-	        else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
-	            kind = 'init';
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            value = this.parseGeneratorMethod();
-	            method = true;
-	        }
-	        else {
-	            if (!key) {
-	                this.throwUnexpectedToken(this.lookahead);
-	            }
-	            kind = 'init';
-	            if (this.match(':') && !isAsync) {
-	                if (!computed && this.isPropertyKey(key, '__proto__')) {
-	                    if (hasProto.value) {
-	                        this.tolerateError(messages_1.Messages.DuplicateProtoProperty);
-	                    }
-	                    hasProto.value = true;
-	                }
-	                this.nextToken();
-	                value = this.inheritCoverGrammar(this.parseAssignmentExpression);
-	            }
-	            else if (this.match('(')) {
-	                value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
-	                method = true;
-	            }
-	            else if (token.type === 3 /* Identifier */) {
-	                var id = this.finalize(node, new Node.Identifier(token.value));
-	                if (this.match('=')) {
-	                    this.context.firstCoverInitializedNameError = this.lookahead;
-	                    this.nextToken();
-	                    shorthand = true;
-	                    var init = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                    value = this.finalize(node, new Node.AssignmentPattern(id, init));
-	                }
-	                else {
-	                    shorthand = true;
-	                    value = id;
-	                }
-	            }
-	            else {
-	                this.throwUnexpectedToken(this.nextToken());
-	            }
-	        }
-	        return this.finalize(node, new Node.Property(kind, key, computed, value, method, shorthand));
-	    };
-	    Parser.prototype.parseObjectInitializer = function () {
-	        var node = this.createNode();
-	        this.expect('{');
-	        var properties = [];
-	        var hasProto = { value: false };
-	        while (!this.match('}')) {
-	            properties.push(this.parseObjectProperty(hasProto));
-	            if (!this.match('}')) {
-	                this.expectCommaSeparator();
-	            }
-	        }
-	        this.expect('}');
-	        return this.finalize(node, new Node.ObjectExpression(properties));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-template-literals
-	    Parser.prototype.parseTemplateHead = function () {
-	        assert_1.assert(this.lookahead.head, 'Template literal must start with a template head');
-	        var node = this.createNode();
-	        var token = this.nextToken();
-	        var raw = token.value;
-	        var cooked = token.cooked;
-	        return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
-	    };
-	    Parser.prototype.parseTemplateElement = function () {
-	        if (this.lookahead.type !== 10 /* Template */) {
-	            this.throwUnexpectedToken();
-	        }
-	        var node = this.createNode();
-	        var token = this.nextToken();
-	        var raw = token.value;
-	        var cooked = token.cooked;
-	        return this.finalize(node, new Node.TemplateElement({ raw: raw, cooked: cooked }, token.tail));
-	    };
-	    Parser.prototype.parseTemplateLiteral = function () {
-	        var node = this.createNode();
-	        var expressions = [];
-	        var quasis = [];
-	        var quasi = this.parseTemplateHead();
-	        quasis.push(quasi);
-	        while (!quasi.tail) {
-	            expressions.push(this.parseExpression());
-	            quasi = this.parseTemplateElement();
-	            quasis.push(quasi);
-	        }
-	        return this.finalize(node, new Node.TemplateLiteral(quasis, expressions));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-grouping-operator
-	    Parser.prototype.reinterpretExpressionAsPattern = function (expr) {
-	        switch (expr.type) {
-	            case syntax_1.Syntax.Identifier:
-	            case syntax_1.Syntax.MemberExpression:
-	            case syntax_1.Syntax.RestElement:
-	            case syntax_1.Syntax.AssignmentPattern:
-	                break;
-	            case syntax_1.Syntax.SpreadElement:
-	                expr.type = syntax_1.Syntax.RestElement;
-	                this.reinterpretExpressionAsPattern(expr.argument);
-	                break;
-	            case syntax_1.Syntax.ArrayExpression:
-	                expr.type = syntax_1.Syntax.ArrayPattern;
-	                for (var i = 0; i < expr.elements.length; i++) {
-	                    if (expr.elements[i] !== null) {
-	                        this.reinterpretExpressionAsPattern(expr.elements[i]);
-	                    }
-	                }
-	                break;
-	            case syntax_1.Syntax.ObjectExpression:
-	                expr.type = syntax_1.Syntax.ObjectPattern;
-	                for (var i = 0; i < expr.properties.length; i++) {
-	                    this.reinterpretExpressionAsPattern(expr.properties[i].value);
-	                }
-	                break;
-	            case syntax_1.Syntax.AssignmentExpression:
-	                expr.type = syntax_1.Syntax.AssignmentPattern;
-	                delete expr.operator;
-	                this.reinterpretExpressionAsPattern(expr.left);
-	                break;
-	            default:
-	                // Allow other node type for tolerant parsing.
-	                break;
-	        }
-	    };
-	    Parser.prototype.parseGroupExpression = function () {
-	        var expr;
-	        this.expect('(');
-	        if (this.match(')')) {
-	            this.nextToken();
-	            if (!this.match('=>')) {
-	                this.expect('=>');
-	            }
-	            expr = {
-	                type: ArrowParameterPlaceHolder,
-	                params: [],
-	                async: false
-	            };
-	        }
-	        else {
-	            var startToken = this.lookahead;
-	            var params = [];
-	            if (this.match('...')) {
-	                expr = this.parseRestElement(params);
-	                this.expect(')');
-	                if (!this.match('=>')) {
-	                    this.expect('=>');
-	                }
-	                expr = {
-	                    type: ArrowParameterPlaceHolder,
-	                    params: [expr],
-	                    async: false
-	                };
-	            }
-	            else {
-	                var arrow = false;
-	                this.context.isBindingElement = true;
-	                expr = this.inheritCoverGrammar(this.parseAssignmentExpression);
-	                if (this.match(',')) {
-	                    var expressions = [];
-	                    this.context.isAssignmentTarget = false;
-	                    expressions.push(expr);
-	                    while (this.lookahead.type !== 2 /* EOF */) {
-	                        if (!this.match(',')) {
-	                            break;
-	                        }
-	                        this.nextToken();
-	                        if (this.match(')')) {
-	                            this.nextToken();
-	                            for (var i = 0; i < expressions.length; i++) {
-	                                this.reinterpretExpressionAsPattern(expressions[i]);
-	                            }
-	                            arrow = true;
-	                            expr = {
-	                                type: ArrowParameterPlaceHolder,
-	                                params: expressions,
-	                                async: false
-	                            };
-	                        }
-	                        else if (this.match('...')) {
-	                            if (!this.context.isBindingElement) {
-	                                this.throwUnexpectedToken(this.lookahead);
-	                            }
-	                            expressions.push(this.parseRestElement(params));
-	                            this.expect(')');
-	                            if (!this.match('=>')) {
-	                                this.expect('=>');
-	                            }
-	                            this.context.isBindingElement = false;
-	                            for (var i = 0; i < expressions.length; i++) {
-	                                this.reinterpretExpressionAsPattern(expressions[i]);
-	                            }
-	                            arrow = true;
-	                            expr = {
-	                                type: ArrowParameterPlaceHolder,
-	                                params: expressions,
-	                                async: false
-	                            };
-	                        }
-	                        else {
-	                            expressions.push(this.inheritCoverGrammar(this.parseAssignmentExpression));
-	                        }
-	                        if (arrow) {
-	                            break;
-	                        }
-	                    }
-	                    if (!arrow) {
-	                        expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
-	                    }
-	                }
-	                if (!arrow) {
-	                    this.expect(')');
-	                    if (this.match('=>')) {
-	                        if (expr.type === syntax_1.Syntax.Identifier && expr.name === 'yield') {
-	                            arrow = true;
-	                            expr = {
-	                                type: ArrowParameterPlaceHolder,
-	                                params: [expr],
-	                                async: false
-	                            };
-	                        }
-	                        if (!arrow) {
-	                            if (!this.context.isBindingElement) {
-	                                this.throwUnexpectedToken(this.lookahead);
-	                            }
-	                            if (expr.type === syntax_1.Syntax.SequenceExpression) {
-	                                for (var i = 0; i < expr.expressions.length; i++) {
-	                                    this.reinterpretExpressionAsPattern(expr.expressions[i]);
-	                                }
-	                            }
-	                            else {
-	                                this.reinterpretExpressionAsPattern(expr);
-	                            }
-	                            var parameters = (expr.type === syntax_1.Syntax.SequenceExpression ? expr.expressions : [expr]);
-	                            expr = {
-	                                type: ArrowParameterPlaceHolder,
-	                                params: parameters,
-	                                async: false
-	                            };
-	                        }
-	                    }
-	                    this.context.isBindingElement = false;
-	                }
-	            }
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-left-hand-side-expressions
-	    Parser.prototype.parseArguments = function () {
-	        this.expect('(');
-	        var args = [];
-	        if (!this.match(')')) {
-	            while (true) {
-	                var expr = this.match('...') ? this.parseSpreadElement() :
-	                    this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                args.push(expr);
-	                if (this.match(')')) {
-	                    break;
-	                }
-	                this.expectCommaSeparator();
-	                if (this.match(')')) {
-	                    break;
-	                }
-	            }
-	        }
-	        this.expect(')');
-	        return args;
-	    };
-	    Parser.prototype.isIdentifierName = function (token) {
-	        return token.type === 3 /* Identifier */ ||
-	            token.type === 4 /* Keyword */ ||
-	            token.type === 1 /* BooleanLiteral */ ||
-	            token.type === 5 /* NullLiteral */;
-	    };
-	    Parser.prototype.parseIdentifierName = function () {
-	        var node = this.createNode();
-	        var token = this.nextToken();
-	        if (!this.isIdentifierName(token)) {
-	            this.throwUnexpectedToken(token);
-	        }
-	        return this.finalize(node, new Node.Identifier(token.value));
-	    };
-	    Parser.prototype.parseNewExpression = function () {
-	        var node = this.createNode();
-	        var id = this.parseIdentifierName();
-	        assert_1.assert(id.name === 'new', 'New expression must start with `new`');
-	        var expr;
-	        if (this.match('.')) {
-	            this.nextToken();
-	            if (this.lookahead.type === 3 /* Identifier */ && this.context.inFunctionBody && this.lookahead.value === 'target') {
-	                var property = this.parseIdentifierName();
-	                expr = new Node.MetaProperty(id, property);
-	            }
-	            else {
-	                this.throwUnexpectedToken(this.lookahead);
-	            }
-	        }
-	        else {
-	            var callee = this.isolateCoverGrammar(this.parseLeftHandSideExpression);
-	            var args = this.match('(') ? this.parseArguments() : [];
-	            expr = new Node.NewExpression(callee, args);
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	        }
-	        return this.finalize(node, expr);
-	    };
-	    Parser.prototype.parseAsyncArgument = function () {
-	        var arg = this.parseAssignmentExpression();
-	        this.context.firstCoverInitializedNameError = null;
-	        return arg;
-	    };
-	    Parser.prototype.parseAsyncArguments = function () {
-	        this.expect('(');
-	        var args = [];
-	        if (!this.match(')')) {
-	            while (true) {
-	                var expr = this.match('...') ? this.parseSpreadElement() :
-	                    this.isolateCoverGrammar(this.parseAsyncArgument);
-	                args.push(expr);
-	                if (this.match(')')) {
-	                    break;
-	                }
-	                this.expectCommaSeparator();
-	                if (this.match(')')) {
-	                    break;
-	                }
-	            }
-	        }
-	        this.expect(')');
-	        return args;
-	    };
-	    Parser.prototype.parseLeftHandSideExpressionAllowCall = function () {
-	        var startToken = this.lookahead;
-	        var maybeAsync = this.matchContextualKeyword('async');
-	        var previousAllowIn = this.context.allowIn;
-	        this.context.allowIn = true;
-	        var expr;
-	        if (this.matchKeyword('super') && this.context.inFunctionBody) {
-	            expr = this.createNode();
-	            this.nextToken();
-	            expr = this.finalize(expr, new Node.Super());
-	            if (!this.match('(') && !this.match('.') && !this.match('[')) {
-	                this.throwUnexpectedToken(this.lookahead);
-	            }
-	        }
-	        else {
-	            expr = this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
-	        }
-	        while (true) {
-	            if (this.match('.')) {
-	                this.context.isBindingElement = false;
-	                this.context.isAssignmentTarget = true;
-	                this.expect('.');
-	                var property = this.parseIdentifierName();
-	                expr = this.finalize(this.startNode(startToken), new Node.StaticMemberExpression(expr, property));
-	            }
-	            else if (this.match('(')) {
-	                var asyncArrow = maybeAsync && (startToken.lineNumber === this.lookahead.lineNumber);
-	                this.context.isBindingElement = false;
-	                this.context.isAssignmentTarget = false;
-	                var args = asyncArrow ? this.parseAsyncArguments() : this.parseArguments();
-	                expr = this.finalize(this.startNode(startToken), new Node.CallExpression(expr, args));
-	                if (asyncArrow && this.match('=>')) {
-	                    for (var i = 0; i < args.length; ++i) {
-	                        this.reinterpretExpressionAsPattern(args[i]);
-	                    }
-	                    expr = {
-	                        type: ArrowParameterPlaceHolder,
-	                        params: args,
-	                        async: true
-	                    };
-	                }
-	            }
-	            else if (this.match('[')) {
-	                this.context.isBindingElement = false;
-	                this.context.isAssignmentTarget = true;
-	                this.expect('[');
-	                var property = this.isolateCoverGrammar(this.parseExpression);
-	                this.expect(']');
-	                expr = this.finalize(this.startNode(startToken), new Node.ComputedMemberExpression(expr, property));
-	            }
-	            else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
-	                var quasi = this.parseTemplateLiteral();
-	                expr = this.finalize(this.startNode(startToken), new Node.TaggedTemplateExpression(expr, quasi));
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        this.context.allowIn = previousAllowIn;
-	        return expr;
-	    };
-	    Parser.prototype.parseSuper = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('super');
-	        if (!this.match('[') && !this.match('.')) {
-	            this.throwUnexpectedToken(this.lookahead);
-	        }
-	        return this.finalize(node, new Node.Super());
-	    };
-	    Parser.prototype.parseLeftHandSideExpression = function () {
-	        assert_1.assert(this.context.allowIn, 'callee of new expression always allow in keyword.');
-	        var node = this.startNode(this.lookahead);
-	        var expr = (this.matchKeyword('super') && this.context.inFunctionBody) ? this.parseSuper() :
-	            this.inheritCoverGrammar(this.matchKeyword('new') ? this.parseNewExpression : this.parsePrimaryExpression);
-	        while (true) {
-	            if (this.match('[')) {
-	                this.context.isBindingElement = false;
-	                this.context.isAssignmentTarget = true;
-	                this.expect('[');
-	                var property = this.isolateCoverGrammar(this.parseExpression);
-	                this.expect(']');
-	                expr = this.finalize(node, new Node.ComputedMemberExpression(expr, property));
-	            }
-	            else if (this.match('.')) {
-	                this.context.isBindingElement = false;
-	                this.context.isAssignmentTarget = true;
-	                this.expect('.');
-	                var property = this.parseIdentifierName();
-	                expr = this.finalize(node, new Node.StaticMemberExpression(expr, property));
-	            }
-	            else if (this.lookahead.type === 10 /* Template */ && this.lookahead.head) {
-	                var quasi = this.parseTemplateLiteral();
-	                expr = this.finalize(node, new Node.TaggedTemplateExpression(expr, quasi));
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-update-expressions
-	    Parser.prototype.parseUpdateExpression = function () {
-	        var expr;
-	        var startToken = this.lookahead;
-	        if (this.match('++') || this.match('--')) {
-	            var node = this.startNode(startToken);
-	            var token = this.nextToken();
-	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
-	            if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
-	                this.tolerateError(messages_1.Messages.StrictLHSPrefix);
-	            }
-	            if (!this.context.isAssignmentTarget) {
-	                this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
-	            }
-	            var prefix = true;
-	            expr = this.finalize(node, new Node.UpdateExpression(token.value, expr, prefix));
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	        }
-	        else {
-	            expr = this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
-	            if (!this.hasLineTerminator && this.lookahead.type === 7 /* Punctuator */) {
-	                if (this.match('++') || this.match('--')) {
-	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier && this.scanner.isRestrictedWord(expr.name)) {
-	                        this.tolerateError(messages_1.Messages.StrictLHSPostfix);
-	                    }
-	                    if (!this.context.isAssignmentTarget) {
-	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
-	                    }
-	                    this.context.isAssignmentTarget = false;
-	                    this.context.isBindingElement = false;
-	                    var operator = this.nextToken().value;
-	                    var prefix = false;
-	                    expr = this.finalize(this.startNode(startToken), new Node.UpdateExpression(operator, expr, prefix));
-	                }
-	            }
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-unary-operators
-	    Parser.prototype.parseAwaitExpression = function () {
-	        var node = this.createNode();
-	        this.nextToken();
-	        var argument = this.parseUnaryExpression();
-	        return this.finalize(node, new Node.AwaitExpression(argument));
-	    };
-	    Parser.prototype.parseUnaryExpression = function () {
-	        var expr;
-	        if (this.match('+') || this.match('-') || this.match('~') || this.match('!') ||
-	            this.matchKeyword('delete') || this.matchKeyword('void') || this.matchKeyword('typeof')) {
-	            var node = this.startNode(this.lookahead);
-	            var token = this.nextToken();
-	            expr = this.inheritCoverGrammar(this.parseUnaryExpression);
-	            expr = this.finalize(node, new Node.UnaryExpression(token.value, expr));
-	            if (this.context.strict && expr.operator === 'delete' && expr.argument.type === syntax_1.Syntax.Identifier) {
-	                this.tolerateError(messages_1.Messages.StrictDelete);
-	            }
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	        }
-	        else if (this.context.await && this.matchContextualKeyword('await')) {
-	            expr = this.parseAwaitExpression();
-	        }
-	        else {
-	            expr = this.parseUpdateExpression();
-	        }
-	        return expr;
-	    };
-	    Parser.prototype.parseExponentiationExpression = function () {
-	        var startToken = this.lookahead;
-	        var expr = this.inheritCoverGrammar(this.parseUnaryExpression);
-	        if (expr.type !== syntax_1.Syntax.UnaryExpression && this.match('**')) {
-	            this.nextToken();
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	            var left = expr;
-	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
-	            expr = this.finalize(this.startNode(startToken), new Node.BinaryExpression('**', left, right));
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-exp-operator
-	    // https://tc39.github.io/ecma262/#sec-multiplicative-operators
-	    // https://tc39.github.io/ecma262/#sec-additive-operators
-	    // https://tc39.github.io/ecma262/#sec-bitwise-shift-operators
-	    // https://tc39.github.io/ecma262/#sec-relational-operators
-	    // https://tc39.github.io/ecma262/#sec-equality-operators
-	    // https://tc39.github.io/ecma262/#sec-binary-bitwise-operators
-	    // https://tc39.github.io/ecma262/#sec-binary-logical-operators
-	    Parser.prototype.binaryPrecedence = function (token) {
-	        var op = token.value;
-	        var precedence;
-	        if (token.type === 7 /* Punctuator */) {
-	            precedence = this.operatorPrecedence[op] || 0;
-	        }
-	        else if (token.type === 4 /* Keyword */) {
-	            precedence = (op === 'instanceof' || (this.context.allowIn && op === 'in')) ? 7 : 0;
-	        }
-	        else {
-	            precedence = 0;
-	        }
-	        return precedence;
-	    };
-	    Parser.prototype.parseBinaryExpression = function () {
-	        var startToken = this.lookahead;
-	        var expr = this.inheritCoverGrammar(this.parseExponentiationExpression);
-	        var token = this.lookahead;
-	        var prec = this.binaryPrecedence(token);
-	        if (prec > 0) {
-	            this.nextToken();
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	            var markers = [startToken, this.lookahead];
-	            var left = expr;
-	            var right = this.isolateCoverGrammar(this.parseExponentiationExpression);
-	            var stack = [left, token.value, right];
-	            var precedences = [prec];
-	            while (true) {
-	                prec = this.binaryPrecedence(this.lookahead);
-	                if (prec <= 0) {
-	                    break;
-	                }
-	                // Reduce: make a binary expression from the three topmost entries.
-	                while ((stack.length > 2) && (prec <= precedences[precedences.length - 1])) {
-	                    right = stack.pop();
-	                    var operator = stack.pop();
-	                    precedences.pop();
-	                    left = stack.pop();
-	                    markers.pop();
-	                    var node = this.startNode(markers[markers.length - 1]);
-	                    stack.push(this.finalize(node, new Node.BinaryExpression(operator, left, right)));
-	                }
-	                // Shift.
-	                stack.push(this.nextToken().value);
-	                precedences.push(prec);
-	                markers.push(this.lookahead);
-	                stack.push(this.isolateCoverGrammar(this.parseExponentiationExpression));
-	            }
-	            // Final reduce to clean-up the stack.
-	            var i = stack.length - 1;
-	            expr = stack[i];
-	            var lastMarker = markers.pop();
-	            while (i > 1) {
-	                var marker = markers.pop();
-	                var lastLineStart = lastMarker && lastMarker.lineStart;
-	                var node = this.startNode(marker, lastLineStart);
-	                var operator = stack[i - 1];
-	                expr = this.finalize(node, new Node.BinaryExpression(operator, stack[i - 2], expr));
-	                i -= 2;
-	                lastMarker = marker;
-	            }
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-conditional-operator
-	    Parser.prototype.parseConditionalExpression = function () {
-	        var startToken = this.lookahead;
-	        var expr = this.inheritCoverGrammar(this.parseBinaryExpression);
-	        if (this.match('?')) {
-	            this.nextToken();
-	            var previousAllowIn = this.context.allowIn;
-	            this.context.allowIn = true;
-	            var consequent = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	            this.context.allowIn = previousAllowIn;
-	            this.expect(':');
-	            var alternate = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	            expr = this.finalize(this.startNode(startToken), new Node.ConditionalExpression(expr, consequent, alternate));
-	            this.context.isAssignmentTarget = false;
-	            this.context.isBindingElement = false;
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-assignment-operators
-	    Parser.prototype.checkPatternParam = function (options, param) {
-	        switch (param.type) {
-	            case syntax_1.Syntax.Identifier:
-	                this.validateParam(options, param, param.name);
-	                break;
-	            case syntax_1.Syntax.RestElement:
-	                this.checkPatternParam(options, param.argument);
-	                break;
-	            case syntax_1.Syntax.AssignmentPattern:
-	                this.checkPatternParam(options, param.left);
-	                break;
-	            case syntax_1.Syntax.ArrayPattern:
-	                for (var i = 0; i < param.elements.length; i++) {
-	                    if (param.elements[i] !== null) {
-	                        this.checkPatternParam(options, param.elements[i]);
-	                    }
-	                }
-	                break;
-	            case syntax_1.Syntax.ObjectPattern:
-	                for (var i = 0; i < param.properties.length; i++) {
-	                    this.checkPatternParam(options, param.properties[i].value);
-	                }
-	                break;
-	            default:
-	                break;
-	        }
-	        options.simple = options.simple && (param instanceof Node.Identifier);
-	    };
-	    Parser.prototype.reinterpretAsCoverFormalsList = function (expr) {
-	        var params = [expr];
-	        var options;
-	        var asyncArrow = false;
-	        switch (expr.type) {
-	            case syntax_1.Syntax.Identifier:
-	                break;
-	            case ArrowParameterPlaceHolder:
-	                params = expr.params;
-	                asyncArrow = expr.async;
-	                break;
-	            default:
-	                return null;
-	        }
-	        options = {
-	            simple: true,
-	            paramSet: {}
-	        };
-	        for (var i = 0; i < params.length; ++i) {
-	            var param = params[i];
-	            if (param.type === syntax_1.Syntax.AssignmentPattern) {
-	                if (param.right.type === syntax_1.Syntax.YieldExpression) {
-	                    if (param.right.argument) {
-	                        this.throwUnexpectedToken(this.lookahead);
-	                    }
-	                    param.right.type = syntax_1.Syntax.Identifier;
-	                    param.right.name = 'yield';
-	                    delete param.right.argument;
-	                    delete param.right.delegate;
-	                }
-	            }
-	            else if (asyncArrow && param.type === syntax_1.Syntax.Identifier && param.name === 'await') {
-	                this.throwUnexpectedToken(this.lookahead);
-	            }
-	            this.checkPatternParam(options, param);
-	            params[i] = param;
-	        }
-	        if (this.context.strict || !this.context.allowYield) {
-	            for (var i = 0; i < params.length; ++i) {
-	                var param = params[i];
-	                if (param.type === syntax_1.Syntax.YieldExpression) {
-	                    this.throwUnexpectedToken(this.lookahead);
-	                }
-	            }
-	        }
-	        if (options.message === messages_1.Messages.StrictParamDupe) {
-	            var token = this.context.strict ? options.stricted : options.firstRestricted;
-	            this.throwUnexpectedToken(token, options.message);
-	        }
-	        return {
-	            simple: options.simple,
-	            params: params,
-	            stricted: options.stricted,
-	            firstRestricted: options.firstRestricted,
-	            message: options.message
-	        };
-	    };
-	    Parser.prototype.parseAssignmentExpression = function () {
-	        var expr;
-	        if (!this.context.allowYield && this.matchKeyword('yield')) {
-	            expr = this.parseYieldExpression();
-	        }
-	        else {
-	            var startToken = this.lookahead;
-	            var token = startToken;
-	            expr = this.parseConditionalExpression();
-	            if (token.type === 3 /* Identifier */ && (token.lineNumber === this.lookahead.lineNumber) && token.value === 'async') {
-	                if (this.lookahead.type === 3 /* Identifier */ || this.matchKeyword('yield')) {
-	                    var arg = this.parsePrimaryExpression();
-	                    this.reinterpretExpressionAsPattern(arg);
-	                    expr = {
-	                        type: ArrowParameterPlaceHolder,
-	                        params: [arg],
-	                        async: true
-	                    };
-	                }
-	            }
-	            if (expr.type === ArrowParameterPlaceHolder || this.match('=>')) {
-	                // https://tc39.github.io/ecma262/#sec-arrow-function-definitions
-	                this.context.isAssignmentTarget = false;
-	                this.context.isBindingElement = false;
-	                var isAsync = expr.async;
-	                var list = this.reinterpretAsCoverFormalsList(expr);
-	                if (list) {
-	                    if (this.hasLineTerminator) {
-	                        this.tolerateUnexpectedToken(this.lookahead);
-	                    }
-	                    this.context.firstCoverInitializedNameError = null;
-	                    var previousStrict = this.context.strict;
-	                    var previousAllowStrictDirective = this.context.allowStrictDirective;
-	                    this.context.allowStrictDirective = list.simple;
-	                    var previousAllowYield = this.context.allowYield;
-	                    var previousAwait = this.context.await;
-	                    this.context.allowYield = true;
-	                    this.context.await = isAsync;
-	                    var node = this.startNode(startToken);
-	                    this.expect('=>');
-	                    var body = void 0;
-	                    if (this.match('{')) {
-	                        var previousAllowIn = this.context.allowIn;
-	                        this.context.allowIn = true;
-	                        body = this.parseFunctionSourceElements();
-	                        this.context.allowIn = previousAllowIn;
-	                    }
-	                    else {
-	                        body = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                    }
-	                    var expression = body.type !== syntax_1.Syntax.BlockStatement;
-	                    if (this.context.strict && list.firstRestricted) {
-	                        this.throwUnexpectedToken(list.firstRestricted, list.message);
-	                    }
-	                    if (this.context.strict && list.stricted) {
-	                        this.tolerateUnexpectedToken(list.stricted, list.message);
-	                    }
-	                    expr = isAsync ? this.finalize(node, new Node.AsyncArrowFunctionExpression(list.params, body, expression)) :
-	                        this.finalize(node, new Node.ArrowFunctionExpression(list.params, body, expression));
-	                    this.context.strict = previousStrict;
-	                    this.context.allowStrictDirective = previousAllowStrictDirective;
-	                    this.context.allowYield = previousAllowYield;
-	                    this.context.await = previousAwait;
-	                }
-	            }
-	            else {
-	                if (this.matchAssign()) {
-	                    if (!this.context.isAssignmentTarget) {
-	                        this.tolerateError(messages_1.Messages.InvalidLHSInAssignment);
-	                    }
-	                    if (this.context.strict && expr.type === syntax_1.Syntax.Identifier) {
-	                        var id = expr;
-	                        if (this.scanner.isRestrictedWord(id.name)) {
-	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictLHSAssignment);
-	                        }
-	                        if (this.scanner.isStrictModeReservedWord(id.name)) {
-	                            this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
-	                        }
-	                    }
-	                    if (!this.match('=')) {
-	                        this.context.isAssignmentTarget = false;
-	                        this.context.isBindingElement = false;
-	                    }
-	                    else {
-	                        this.reinterpretExpressionAsPattern(expr);
-	                    }
-	                    token = this.nextToken();
-	                    var operator = token.value;
-	                    var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                    expr = this.finalize(this.startNode(startToken), new Node.AssignmentExpression(operator, expr, right));
-	                    this.context.firstCoverInitializedNameError = null;
-	                }
-	            }
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-comma-operator
-	    Parser.prototype.parseExpression = function () {
-	        var startToken = this.lookahead;
-	        var expr = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	        if (this.match(',')) {
-	            var expressions = [];
-	            expressions.push(expr);
-	            while (this.lookahead.type !== 2 /* EOF */) {
-	                if (!this.match(',')) {
-	                    break;
-	                }
-	                this.nextToken();
-	                expressions.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
-	            }
-	            expr = this.finalize(this.startNode(startToken), new Node.SequenceExpression(expressions));
-	        }
-	        return expr;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-block
-	    Parser.prototype.parseStatementListItem = function () {
-	        var statement;
-	        this.context.isAssignmentTarget = true;
-	        this.context.isBindingElement = true;
-	        if (this.lookahead.type === 4 /* Keyword */) {
-	            switch (this.lookahead.value) {
-	                case 'export':
-	                    if (!this.context.isModule) {
-	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalExportDeclaration);
-	                    }
-	                    statement = this.parseExportDeclaration();
-	                    break;
-	                case 'import':
-	                    if (!this.context.isModule) {
-	                        this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.IllegalImportDeclaration);
-	                    }
-	                    statement = this.parseImportDeclaration();
-	                    break;
-	                case 'const':
-	                    statement = this.parseLexicalDeclaration({ inFor: false });
-	                    break;
-	                case 'function':
-	                    statement = this.parseFunctionDeclaration();
-	                    break;
-	                case 'class':
-	                    statement = this.parseClassDeclaration();
-	                    break;
-	                case 'let':
-	                    statement = this.isLexicalDeclaration() ? this.parseLexicalDeclaration({ inFor: false }) : this.parseStatement();
-	                    break;
-	                default:
-	                    statement = this.parseStatement();
-	                    break;
-	            }
-	        }
-	        else {
-	            statement = this.parseStatement();
-	        }
-	        return statement;
-	    };
-	    Parser.prototype.parseBlock = function () {
-	        var node = this.createNode();
-	        this.expect('{');
-	        var block = [];
-	        while (true) {
-	            if (this.match('}')) {
-	                break;
-	            }
-	            block.push(this.parseStatementListItem());
-	        }
-	        this.expect('}');
-	        return this.finalize(node, new Node.BlockStatement(block));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-let-and-const-declarations
-	    Parser.prototype.parseLexicalBinding = function (kind, options) {
-	        var node = this.createNode();
-	        var params = [];
-	        var id = this.parsePattern(params, kind);
-	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
-	            if (this.scanner.isRestrictedWord(id.name)) {
-	                this.tolerateError(messages_1.Messages.StrictVarName);
-	            }
-	        }
-	        var init = null;
-	        if (kind === 'const') {
-	            if (!this.matchKeyword('in') && !this.matchContextualKeyword('of')) {
-	                if (this.match('=')) {
-	                    this.nextToken();
-	                    init = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	                }
-	                else {
-	                    this.throwError(messages_1.Messages.DeclarationMissingInitializer, 'const');
-	                }
-	            }
-	        }
-	        else if ((!options.inFor && id.type !== syntax_1.Syntax.Identifier) || this.match('=')) {
-	            this.expect('=');
-	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	        }
-	        return this.finalize(node, new Node.VariableDeclarator(id, init));
-	    };
-	    Parser.prototype.parseBindingList = function (kind, options) {
-	        var list = [this.parseLexicalBinding(kind, options)];
-	        while (this.match(',')) {
-	            this.nextToken();
-	            list.push(this.parseLexicalBinding(kind, options));
-	        }
-	        return list;
-	    };
-	    Parser.prototype.isLexicalDeclaration = function () {
-	        var state = this.scanner.saveState();
-	        this.scanner.scanComments();
-	        var next = this.scanner.lex();
-	        this.scanner.restoreState(state);
-	        return (next.type === 3 /* Identifier */) ||
-	            (next.type === 7 /* Punctuator */ && next.value === '[') ||
-	            (next.type === 7 /* Punctuator */ && next.value === '{') ||
-	            (next.type === 4 /* Keyword */ && next.value === 'let') ||
-	            (next.type === 4 /* Keyword */ && next.value === 'yield');
-	    };
-	    Parser.prototype.parseLexicalDeclaration = function (options) {
-	        var node = this.createNode();
-	        var kind = this.nextToken().value;
-	        assert_1.assert(kind === 'let' || kind === 'const', 'Lexical declaration must be either let or const');
-	        var declarations = this.parseBindingList(kind, options);
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.VariableDeclaration(declarations, kind));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-destructuring-binding-patterns
-	    Parser.prototype.parseBindingRestElement = function (params, kind) {
-	        var node = this.createNode();
-	        this.expect('...');
-	        var arg = this.parsePattern(params, kind);
-	        return this.finalize(node, new Node.RestElement(arg));
-	    };
-	    Parser.prototype.parseArrayPattern = function (params, kind) {
-	        var node = this.createNode();
-	        this.expect('[');
-	        var elements = [];
-	        while (!this.match(']')) {
-	            if (this.match(',')) {
-	                this.nextToken();
-	                elements.push(null);
-	            }
-	            else {
-	                if (this.match('...')) {
-	                    elements.push(this.parseBindingRestElement(params, kind));
-	                    break;
-	                }
-	                else {
-	                    elements.push(this.parsePatternWithDefault(params, kind));
-	                }
-	                if (!this.match(']')) {
-	                    this.expect(',');
-	                }
-	            }
-	        }
-	        this.expect(']');
-	        return this.finalize(node, new Node.ArrayPattern(elements));
-	    };
-	    Parser.prototype.parsePropertyPattern = function (params, kind) {
-	        var node = this.createNode();
-	        var computed = false;
-	        var shorthand = false;
-	        var method = false;
-	        var key;
-	        var value;
-	        if (this.lookahead.type === 3 /* Identifier */) {
-	            var keyToken = this.lookahead;
-	            key = this.parseVariableIdentifier();
-	            var init = this.finalize(node, new Node.Identifier(keyToken.value));
-	            if (this.match('=')) {
-	                params.push(keyToken);
-	                shorthand = true;
-	                this.nextToken();
-	                var expr = this.parseAssignmentExpression();
-	                value = this.finalize(this.startNode(keyToken), new Node.AssignmentPattern(init, expr));
-	            }
-	            else if (!this.match(':')) {
-	                params.push(keyToken);
-	                shorthand = true;
-	                value = init;
-	            }
-	            else {
-	                this.expect(':');
-	                value = this.parsePatternWithDefault(params, kind);
-	            }
-	        }
-	        else {
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            this.expect(':');
-	            value = this.parsePatternWithDefault(params, kind);
-	        }
-	        return this.finalize(node, new Node.Property('init', key, computed, value, method, shorthand));
-	    };
-	    Parser.prototype.parseObjectPattern = function (params, kind) {
-	        var node = this.createNode();
-	        var properties = [];
-	        this.expect('{');
-	        while (!this.match('}')) {
-	            properties.push(this.parsePropertyPattern(params, kind));
-	            if (!this.match('}')) {
-	                this.expect(',');
-	            }
-	        }
-	        this.expect('}');
-	        return this.finalize(node, new Node.ObjectPattern(properties));
-	    };
-	    Parser.prototype.parsePattern = function (params, kind) {
-	        var pattern;
-	        if (this.match('[')) {
-	            pattern = this.parseArrayPattern(params, kind);
-	        }
-	        else if (this.match('{')) {
-	            pattern = this.parseObjectPattern(params, kind);
-	        }
-	        else {
-	            if (this.matchKeyword('let') && (kind === 'const' || kind === 'let')) {
-	                this.tolerateUnexpectedToken(this.lookahead, messages_1.Messages.LetInLexicalBinding);
-	            }
-	            params.push(this.lookahead);
-	            pattern = this.parseVariableIdentifier(kind);
-	        }
-	        return pattern;
-	    };
-	    Parser.prototype.parsePatternWithDefault = function (params, kind) {
-	        var startToken = this.lookahead;
-	        var pattern = this.parsePattern(params, kind);
-	        if (this.match('=')) {
-	            this.nextToken();
-	            var previousAllowYield = this.context.allowYield;
-	            this.context.allowYield = true;
-	            var right = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	            this.context.allowYield = previousAllowYield;
-	            pattern = this.finalize(this.startNode(startToken), new Node.AssignmentPattern(pattern, right));
-	        }
-	        return pattern;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-variable-statement
-	    Parser.prototype.parseVariableIdentifier = function (kind) {
-	        var node = this.createNode();
-	        var token = this.nextToken();
-	        if (token.type === 4 /* Keyword */ && token.value === 'yield') {
-	            if (this.context.strict) {
-	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
-	            }
-	            else if (!this.context.allowYield) {
-	                this.throwUnexpectedToken(token);
-	            }
-	        }
-	        else if (token.type !== 3 /* Identifier */) {
-	            if (this.context.strict && token.type === 4 /* Keyword */ && this.scanner.isStrictModeReservedWord(token.value)) {
-	                this.tolerateUnexpectedToken(token, messages_1.Messages.StrictReservedWord);
-	            }
-	            else {
-	                if (this.context.strict || token.value !== 'let' || kind !== 'var') {
-	                    this.throwUnexpectedToken(token);
-	                }
-	            }
-	        }
-	        else if ((this.context.isModule || this.context.await) && token.type === 3 /* Identifier */ && token.value === 'await') {
-	            this.tolerateUnexpectedToken(token);
-	        }
-	        return this.finalize(node, new Node.Identifier(token.value));
-	    };
-	    Parser.prototype.parseVariableDeclaration = function (options) {
-	        var node = this.createNode();
-	        var params = [];
-	        var id = this.parsePattern(params, 'var');
-	        if (this.context.strict && id.type === syntax_1.Syntax.Identifier) {
-	            if (this.scanner.isRestrictedWord(id.name)) {
-	                this.tolerateError(messages_1.Messages.StrictVarName);
-	            }
-	        }
-	        var init = null;
-	        if (this.match('=')) {
-	            this.nextToken();
-	            init = this.isolateCoverGrammar(this.parseAssignmentExpression);
-	        }
-	        else if (id.type !== syntax_1.Syntax.Identifier && !options.inFor) {
-	            this.expect('=');
-	        }
-	        return this.finalize(node, new Node.VariableDeclarator(id, init));
-	    };
-	    Parser.prototype.parseVariableDeclarationList = function (options) {
-	        var opt = { inFor: options.inFor };
-	        var list = [];
-	        list.push(this.parseVariableDeclaration(opt));
-	        while (this.match(',')) {
-	            this.nextToken();
-	            list.push(this.parseVariableDeclaration(opt));
-	        }
-	        return list;
-	    };
-	    Parser.prototype.parseVariableStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('var');
-	        var declarations = this.parseVariableDeclarationList({ inFor: false });
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.VariableDeclaration(declarations, 'var'));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-empty-statement
-	    Parser.prototype.parseEmptyStatement = function () {
-	        var node = this.createNode();
-	        this.expect(';');
-	        return this.finalize(node, new Node.EmptyStatement());
-	    };
-	    // https://tc39.github.io/ecma262/#sec-expression-statement
-	    Parser.prototype.parseExpressionStatement = function () {
-	        var node = this.createNode();
-	        var expr = this.parseExpression();
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.ExpressionStatement(expr));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-if-statement
-	    Parser.prototype.parseIfClause = function () {
-	        if (this.context.strict && this.matchKeyword('function')) {
-	            this.tolerateError(messages_1.Messages.StrictFunction);
-	        }
-	        return this.parseStatement();
-	    };
-	    Parser.prototype.parseIfStatement = function () {
-	        var node = this.createNode();
-	        var consequent;
-	        var alternate = null;
-	        this.expectKeyword('if');
-	        this.expect('(');
-	        var test = this.parseExpression();
-	        if (!this.match(')') && this.config.tolerant) {
-	            this.tolerateUnexpectedToken(this.nextToken());
-	            consequent = this.finalize(this.createNode(), new Node.EmptyStatement());
-	        }
-	        else {
-	            this.expect(')');
-	            consequent = this.parseIfClause();
-	            if (this.matchKeyword('else')) {
-	                this.nextToken();
-	                alternate = this.parseIfClause();
-	            }
-	        }
-	        return this.finalize(node, new Node.IfStatement(test, consequent, alternate));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-do-while-statement
-	    Parser.prototype.parseDoWhileStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('do');
-	        var previousInIteration = this.context.inIteration;
-	        this.context.inIteration = true;
-	        var body = this.parseStatement();
-	        this.context.inIteration = previousInIteration;
-	        this.expectKeyword('while');
-	        this.expect('(');
-	        var test = this.parseExpression();
-	        if (!this.match(')') && this.config.tolerant) {
-	            this.tolerateUnexpectedToken(this.nextToken());
-	        }
-	        else {
-	            this.expect(')');
-	            if (this.match(';')) {
-	                this.nextToken();
-	            }
-	        }
-	        return this.finalize(node, new Node.DoWhileStatement(body, test));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-while-statement
-	    Parser.prototype.parseWhileStatement = function () {
-	        var node = this.createNode();
-	        var body;
-	        this.expectKeyword('while');
-	        this.expect('(');
-	        var test = this.parseExpression();
-	        if (!this.match(')') && this.config.tolerant) {
-	            this.tolerateUnexpectedToken(this.nextToken());
-	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
-	        }
-	        else {
-	            this.expect(')');
-	            var previousInIteration = this.context.inIteration;
-	            this.context.inIteration = true;
-	            body = this.parseStatement();
-	            this.context.inIteration = previousInIteration;
-	        }
-	        return this.finalize(node, new Node.WhileStatement(test, body));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-for-statement
-	    // https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements
-	    Parser.prototype.parseForStatement = function () {
-	        var init = null;
-	        var test = null;
-	        var update = null;
-	        var forIn = true;
-	        var left, right;
-	        var node = this.createNode();
-	        this.expectKeyword('for');
-	        this.expect('(');
-	        if (this.match(';')) {
-	            this.nextToken();
-	        }
-	        else {
-	            if (this.matchKeyword('var')) {
-	                init = this.createNode();
-	                this.nextToken();
-	                var previousAllowIn = this.context.allowIn;
-	                this.context.allowIn = false;
-	                var declarations = this.parseVariableDeclarationList({ inFor: true });
-	                this.context.allowIn = previousAllowIn;
-	                if (declarations.length === 1 && this.matchKeyword('in')) {
-	                    var decl = declarations[0];
-	                    if (decl.init && (decl.id.type === syntax_1.Syntax.ArrayPattern || decl.id.type === syntax_1.Syntax.ObjectPattern || this.context.strict)) {
-	                        this.tolerateError(messages_1.Messages.ForInOfLoopInitializer, 'for-in');
-	                    }
-	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
-	                    this.nextToken();
-	                    left = init;
-	                    right = this.parseExpression();
-	                    init = null;
-	                }
-	                else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
-	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
-	                    this.nextToken();
-	                    left = init;
-	                    right = this.parseAssignmentExpression();
-	                    init = null;
-	                    forIn = false;
-	                }
-	                else {
-	                    init = this.finalize(init, new Node.VariableDeclaration(declarations, 'var'));
-	                    this.expect(';');
-	                }
-	            }
-	            else if (this.matchKeyword('const') || this.matchKeyword('let')) {
-	                init = this.createNode();
-	                var kind = this.nextToken().value;
-	                if (!this.context.strict && this.lookahead.value === 'in') {
-	                    init = this.finalize(init, new Node.Identifier(kind));
-	                    this.nextToken();
-	                    left = init;
-	                    right = this.parseExpression();
-	                    init = null;
-	                }
-	                else {
-	                    var previousAllowIn = this.context.allowIn;
-	                    this.context.allowIn = false;
-	                    var declarations = this.parseBindingList(kind, { inFor: true });
-	                    this.context.allowIn = previousAllowIn;
-	                    if (declarations.length === 1 && declarations[0].init === null && this.matchKeyword('in')) {
-	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
-	                        this.nextToken();
-	                        left = init;
-	                        right = this.parseExpression();
-	                        init = null;
-	                    }
-	                    else if (declarations.length === 1 && declarations[0].init === null && this.matchContextualKeyword('of')) {
-	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
-	                        this.nextToken();
-	                        left = init;
-	                        right = this.parseAssignmentExpression();
-	                        init = null;
-	                        forIn = false;
-	                    }
-	                    else {
-	                        this.consumeSemicolon();
-	                        init = this.finalize(init, new Node.VariableDeclaration(declarations, kind));
-	                    }
-	                }
-	            }
-	            else {
-	                var initStartToken = this.lookahead;
-	                var previousAllowIn = this.context.allowIn;
-	                this.context.allowIn = false;
-	                init = this.inheritCoverGrammar(this.parseAssignmentExpression);
-	                this.context.allowIn = previousAllowIn;
-	                if (this.matchKeyword('in')) {
-	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
-	                        this.tolerateError(messages_1.Messages.InvalidLHSInForIn);
-	                    }
-	                    this.nextToken();
-	                    this.reinterpretExpressionAsPattern(init);
-	                    left = init;
-	                    right = this.parseExpression();
-	                    init = null;
-	                }
-	                else if (this.matchContextualKeyword('of')) {
-	                    if (!this.context.isAssignmentTarget || init.type === syntax_1.Syntax.AssignmentExpression) {
-	                        this.tolerateError(messages_1.Messages.InvalidLHSInForLoop);
-	                    }
-	                    this.nextToken();
-	                    this.reinterpretExpressionAsPattern(init);
-	                    left = init;
-	                    right = this.parseAssignmentExpression();
-	                    init = null;
-	                    forIn = false;
-	                }
-	                else {
-	                    if (this.match(',')) {
-	                        var initSeq = [init];
-	                        while (this.match(',')) {
-	                            this.nextToken();
-	                            initSeq.push(this.isolateCoverGrammar(this.parseAssignmentExpression));
-	                        }
-	                        init = this.finalize(this.startNode(initStartToken), new Node.SequenceExpression(initSeq));
-	                    }
-	                    this.expect(';');
-	                }
-	            }
-	        }
-	        if (typeof left === 'undefined') {
-	            if (!this.match(';')) {
-	                test = this.parseExpression();
-	            }
-	            this.expect(';');
-	            if (!this.match(')')) {
-	                update = this.parseExpression();
-	            }
-	        }
-	        var body;
-	        if (!this.match(')') && this.config.tolerant) {
-	            this.tolerateUnexpectedToken(this.nextToken());
-	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
-	        }
-	        else {
-	            this.expect(')');
-	            var previousInIteration = this.context.inIteration;
-	            this.context.inIteration = true;
-	            body = this.isolateCoverGrammar(this.parseStatement);
-	            this.context.inIteration = previousInIteration;
-	        }
-	        return (typeof left === 'undefined') ?
-	            this.finalize(node, new Node.ForStatement(init, test, update, body)) :
-	            forIn ? this.finalize(node, new Node.ForInStatement(left, right, body)) :
-	                this.finalize(node, new Node.ForOfStatement(left, right, body));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-continue-statement
-	    Parser.prototype.parseContinueStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('continue');
-	        var label = null;
-	        if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
-	            var id = this.parseVariableIdentifier();
-	            label = id;
-	            var key = '$' + id.name;
-	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
-	                this.throwError(messages_1.Messages.UnknownLabel, id.name);
-	            }
-	        }
-	        this.consumeSemicolon();
-	        if (label === null && !this.context.inIteration) {
-	            this.throwError(messages_1.Messages.IllegalContinue);
-	        }
-	        return this.finalize(node, new Node.ContinueStatement(label));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-break-statement
-	    Parser.prototype.parseBreakStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('break');
-	        var label = null;
-	        if (this.lookahead.type === 3 /* Identifier */ && !this.hasLineTerminator) {
-	            var id = this.parseVariableIdentifier();
-	            var key = '$' + id.name;
-	            if (!Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
-	                this.throwError(messages_1.Messages.UnknownLabel, id.name);
-	            }
-	            label = id;
-	        }
-	        this.consumeSemicolon();
-	        if (label === null && !this.context.inIteration && !this.context.inSwitch) {
-	            this.throwError(messages_1.Messages.IllegalBreak);
-	        }
-	        return this.finalize(node, new Node.BreakStatement(label));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-return-statement
-	    Parser.prototype.parseReturnStatement = function () {
-	        if (!this.context.inFunctionBody) {
-	            this.tolerateError(messages_1.Messages.IllegalReturn);
-	        }
-	        var node = this.createNode();
-	        this.expectKeyword('return');
-	        var hasArgument = (!this.match(';') && !this.match('}') &&
-	            !this.hasLineTerminator && this.lookahead.type !== 2 /* EOF */) ||
-	            this.lookahead.type === 8 /* StringLiteral */ ||
-	            this.lookahead.type === 10 /* Template */;
-	        var argument = hasArgument ? this.parseExpression() : null;
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.ReturnStatement(argument));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-with-statement
-	    Parser.prototype.parseWithStatement = function () {
-	        if (this.context.strict) {
-	            this.tolerateError(messages_1.Messages.StrictModeWith);
-	        }
-	        var node = this.createNode();
-	        var body;
-	        this.expectKeyword('with');
-	        this.expect('(');
-	        var object = this.parseExpression();
-	        if (!this.match(')') && this.config.tolerant) {
-	            this.tolerateUnexpectedToken(this.nextToken());
-	            body = this.finalize(this.createNode(), new Node.EmptyStatement());
-	        }
-	        else {
-	            this.expect(')');
-	            body = this.parseStatement();
-	        }
-	        return this.finalize(node, new Node.WithStatement(object, body));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-switch-statement
-	    Parser.prototype.parseSwitchCase = function () {
-	        var node = this.createNode();
-	        var test;
-	        if (this.matchKeyword('default')) {
-	            this.nextToken();
-	            test = null;
-	        }
-	        else {
-	            this.expectKeyword('case');
-	            test = this.parseExpression();
-	        }
-	        this.expect(':');
-	        var consequent = [];
-	        while (true) {
-	            if (this.match('}') || this.matchKeyword('default') || this.matchKeyword('case')) {
-	                break;
-	            }
-	            consequent.push(this.parseStatementListItem());
-	        }
-	        return this.finalize(node, new Node.SwitchCase(test, consequent));
-	    };
-	    Parser.prototype.parseSwitchStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('switch');
-	        this.expect('(');
-	        var discriminant = this.parseExpression();
-	        this.expect(')');
-	        var previousInSwitch = this.context.inSwitch;
-	        this.context.inSwitch = true;
-	        var cases = [];
-	        var defaultFound = false;
-	        this.expect('{');
-	        while (true) {
-	            if (this.match('}')) {
-	                break;
-	            }
-	            var clause = this.parseSwitchCase();
-	            if (clause.test === null) {
-	                if (defaultFound) {
-	                    this.throwError(messages_1.Messages.MultipleDefaultsInSwitch);
-	                }
-	                defaultFound = true;
-	            }
-	            cases.push(clause);
-	        }
-	        this.expect('}');
-	        this.context.inSwitch = previousInSwitch;
-	        return this.finalize(node, new Node.SwitchStatement(discriminant, cases));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-labelled-statements
-	    Parser.prototype.parseLabelledStatement = function () {
-	        var node = this.createNode();
-	        var expr = this.parseExpression();
-	        var statement;
-	        if ((expr.type === syntax_1.Syntax.Identifier) && this.match(':')) {
-	            this.nextToken();
-	            var id = expr;
-	            var key = '$' + id.name;
-	            if (Object.prototype.hasOwnProperty.call(this.context.labelSet, key)) {
-	                this.throwError(messages_1.Messages.Redeclaration, 'Label', id.name);
-	            }
-	            this.context.labelSet[key] = true;
-	            var body = void 0;
-	            if (this.matchKeyword('class')) {
-	                this.tolerateUnexpectedToken(this.lookahead);
-	                body = this.parseClassDeclaration();
-	            }
-	            else if (this.matchKeyword('function')) {
-	                var token = this.lookahead;
-	                var declaration = this.parseFunctionDeclaration();
-	                if (this.context.strict) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunction);
-	                }
-	                else if (declaration.generator) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.GeneratorInLegacyContext);
-	                }
-	                body = declaration;
-	            }
-	            else {
-	                body = this.parseStatement();
-	            }
-	            delete this.context.labelSet[key];
-	            statement = new Node.LabeledStatement(id, body);
-	        }
-	        else {
-	            this.consumeSemicolon();
-	            statement = new Node.ExpressionStatement(expr);
-	        }
-	        return this.finalize(node, statement);
-	    };
-	    // https://tc39.github.io/ecma262/#sec-throw-statement
-	    Parser.prototype.parseThrowStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('throw');
-	        if (this.hasLineTerminator) {
-	            this.throwError(messages_1.Messages.NewlineAfterThrow);
-	        }
-	        var argument = this.parseExpression();
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.ThrowStatement(argument));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-try-statement
-	    Parser.prototype.parseCatchClause = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('catch');
-	        this.expect('(');
-	        if (this.match(')')) {
-	            this.throwUnexpectedToken(this.lookahead);
-	        }
-	        var params = [];
-	        var param = this.parsePattern(params);
-	        var paramMap = {};
-	        for (var i = 0; i < params.length; i++) {
-	            var key = '$' + params[i].value;
-	            if (Object.prototype.hasOwnProperty.call(paramMap, key)) {
-	                this.tolerateError(messages_1.Messages.DuplicateBinding, params[i].value);
-	            }
-	            paramMap[key] = true;
-	        }
-	        if (this.context.strict && param.type === syntax_1.Syntax.Identifier) {
-	            if (this.scanner.isRestrictedWord(param.name)) {
-	                this.tolerateError(messages_1.Messages.StrictCatchVariable);
-	            }
-	        }
-	        this.expect(')');
-	        var body = this.parseBlock();
-	        return this.finalize(node, new Node.CatchClause(param, body));
-	    };
-	    Parser.prototype.parseFinallyClause = function () {
-	        this.expectKeyword('finally');
-	        return this.parseBlock();
-	    };
-	    Parser.prototype.parseTryStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('try');
-	        var block = this.parseBlock();
-	        var handler = this.matchKeyword('catch') ? this.parseCatchClause() : null;
-	        var finalizer = this.matchKeyword('finally') ? this.parseFinallyClause() : null;
-	        if (!handler && !finalizer) {
-	            this.throwError(messages_1.Messages.NoCatchOrFinally);
-	        }
-	        return this.finalize(node, new Node.TryStatement(block, handler, finalizer));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-debugger-statement
-	    Parser.prototype.parseDebuggerStatement = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('debugger');
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.DebuggerStatement());
-	    };
-	    // https://tc39.github.io/ecma262/#sec-ecmascript-language-statements-and-declarations
-	    Parser.prototype.parseStatement = function () {
-	        var statement;
-	        switch (this.lookahead.type) {
-	            case 1 /* BooleanLiteral */:
-	            case 5 /* NullLiteral */:
-	            case 6 /* NumericLiteral */:
-	            case 8 /* StringLiteral */:
-	            case 10 /* Template */:
-	            case 9 /* RegularExpression */:
-	                statement = this.parseExpressionStatement();
-	                break;
-	            case 7 /* Punctuator */:
-	                var value = this.lookahead.value;
-	                if (value === '{') {
-	                    statement = this.parseBlock();
-	                }
-	                else if (value === '(') {
-	                    statement = this.parseExpressionStatement();
-	                }
-	                else if (value === ';') {
-	                    statement = this.parseEmptyStatement();
-	                }
-	                else {
-	                    statement = this.parseExpressionStatement();
-	                }
-	                break;
-	            case 3 /* Identifier */:
-	                statement = this.matchAsyncFunction() ? this.parseFunctionDeclaration() : this.parseLabelledStatement();
-	                break;
-	            case 4 /* Keyword */:
-	                switch (this.lookahead.value) {
-	                    case 'break':
-	                        statement = this.parseBreakStatement();
-	                        break;
-	                    case 'continue':
-	                        statement = this.parseContinueStatement();
-	                        break;
-	                    case 'debugger':
-	                        statement = this.parseDebuggerStatement();
-	                        break;
-	                    case 'do':
-	                        statement = this.parseDoWhileStatement();
-	                        break;
-	                    case 'for':
-	                        statement = this.parseForStatement();
-	                        break;
-	                    case 'function':
-	                        statement = this.parseFunctionDeclaration();
-	                        break;
-	                    case 'if':
-	                        statement = this.parseIfStatement();
-	                        break;
-	                    case 'return':
-	                        statement = this.parseReturnStatement();
-	                        break;
-	                    case 'switch':
-	                        statement = this.parseSwitchStatement();
-	                        break;
-	                    case 'throw':
-	                        statement = this.parseThrowStatement();
-	                        break;
-	                    case 'try':
-	                        statement = this.parseTryStatement();
-	                        break;
-	                    case 'var':
-	                        statement = this.parseVariableStatement();
-	                        break;
-	                    case 'while':
-	                        statement = this.parseWhileStatement();
-	                        break;
-	                    case 'with':
-	                        statement = this.parseWithStatement();
-	                        break;
-	                    default:
-	                        statement = this.parseExpressionStatement();
-	                        break;
-	                }
-	                break;
-	            default:
-	                statement = this.throwUnexpectedToken(this.lookahead);
-	        }
-	        return statement;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-function-definitions
-	    Parser.prototype.parseFunctionSourceElements = function () {
-	        var node = this.createNode();
-	        this.expect('{');
-	        var body = this.parseDirectivePrologues();
-	        var previousLabelSet = this.context.labelSet;
-	        var previousInIteration = this.context.inIteration;
-	        var previousInSwitch = this.context.inSwitch;
-	        var previousInFunctionBody = this.context.inFunctionBody;
-	        this.context.labelSet = {};
-	        this.context.inIteration = false;
-	        this.context.inSwitch = false;
-	        this.context.inFunctionBody = true;
-	        while (this.lookahead.type !== 2 /* EOF */) {
-	            if (this.match('}')) {
-	                break;
-	            }
-	            body.push(this.parseStatementListItem());
-	        }
-	        this.expect('}');
-	        this.context.labelSet = previousLabelSet;
-	        this.context.inIteration = previousInIteration;
-	        this.context.inSwitch = previousInSwitch;
-	        this.context.inFunctionBody = previousInFunctionBody;
-	        return this.finalize(node, new Node.BlockStatement(body));
-	    };
-	    Parser.prototype.validateParam = function (options, param, name) {
-	        var key = '$' + name;
-	        if (this.context.strict) {
-	            if (this.scanner.isRestrictedWord(name)) {
-	                options.stricted = param;
-	                options.message = messages_1.Messages.StrictParamName;
-	            }
-	            if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
-	                options.stricted = param;
-	                options.message = messages_1.Messages.StrictParamDupe;
-	            }
-	        }
-	        else if (!options.firstRestricted) {
-	            if (this.scanner.isRestrictedWord(name)) {
-	                options.firstRestricted = param;
-	                options.message = messages_1.Messages.StrictParamName;
-	            }
-	            else if (this.scanner.isStrictModeReservedWord(name)) {
-	                options.firstRestricted = param;
-	                options.message = messages_1.Messages.StrictReservedWord;
-	            }
-	            else if (Object.prototype.hasOwnProperty.call(options.paramSet, key)) {
-	                options.stricted = param;
-	                options.message = messages_1.Messages.StrictParamDupe;
-	            }
-	        }
-	        /* istanbul ignore next */
-	        if (typeof Object.defineProperty === 'function') {
-	            Object.defineProperty(options.paramSet, key, { value: true, enumerable: true, writable: true, configurable: true });
-	        }
-	        else {
-	            options.paramSet[key] = true;
-	        }
-	    };
-	    Parser.prototype.parseRestElement = function (params) {
-	        var node = this.createNode();
-	        this.expect('...');
-	        var arg = this.parsePattern(params);
-	        if (this.match('=')) {
-	            this.throwError(messages_1.Messages.DefaultRestParameter);
-	        }
-	        if (!this.match(')')) {
-	            this.throwError(messages_1.Messages.ParameterAfterRestParameter);
-	        }
-	        return this.finalize(node, new Node.RestElement(arg));
-	    };
-	    Parser.prototype.parseFormalParameter = function (options) {
-	        var params = [];
-	        var param = this.match('...') ? this.parseRestElement(params) : this.parsePatternWithDefault(params);
-	        for (var i = 0; i < params.length; i++) {
-	            this.validateParam(options, params[i], params[i].value);
-	        }
-	        options.simple = options.simple && (param instanceof Node.Identifier);
-	        options.params.push(param);
-	    };
-	    Parser.prototype.parseFormalParameters = function (firstRestricted) {
-	        var options;
-	        options = {
-	            simple: true,
-	            params: [],
-	            firstRestricted: firstRestricted
-	        };
-	        this.expect('(');
-	        if (!this.match(')')) {
-	            options.paramSet = {};
-	            while (this.lookahead.type !== 2 /* EOF */) {
-	                this.parseFormalParameter(options);
-	                if (this.match(')')) {
-	                    break;
-	                }
-	                this.expect(',');
-	                if (this.match(')')) {
-	                    break;
-	                }
-	            }
-	        }
-	        this.expect(')');
-	        return {
-	            simple: options.simple,
-	            params: options.params,
-	            stricted: options.stricted,
-	            firstRestricted: options.firstRestricted,
-	            message: options.message
-	        };
-	    };
-	    Parser.prototype.matchAsyncFunction = function () {
-	        var match = this.matchContextualKeyword('async');
-	        if (match) {
-	            var state = this.scanner.saveState();
-	            this.scanner.scanComments();
-	            var next = this.scanner.lex();
-	            this.scanner.restoreState(state);
-	            match = (state.lineNumber === next.lineNumber) && (next.type === 4 /* Keyword */) && (next.value === 'function');
-	        }
-	        return match;
-	    };
-	    Parser.prototype.parseFunctionDeclaration = function (identifierIsOptional) {
-	        var node = this.createNode();
-	        var isAsync = this.matchContextualKeyword('async');
-	        if (isAsync) {
-	            this.nextToken();
-	        }
-	        this.expectKeyword('function');
-	        var isGenerator = isAsync ? false : this.match('*');
-	        if (isGenerator) {
-	            this.nextToken();
-	        }
-	        var message;
-	        var id = null;
-	        var firstRestricted = null;
-	        if (!identifierIsOptional || !this.match('(')) {
-	            var token = this.lookahead;
-	            id = this.parseVariableIdentifier();
-	            if (this.context.strict) {
-	                if (this.scanner.isRestrictedWord(token.value)) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
-	                }
-	            }
-	            else {
-	                if (this.scanner.isRestrictedWord(token.value)) {
-	                    firstRestricted = token;
-	                    message = messages_1.Messages.StrictFunctionName;
-	                }
-	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
-	                    firstRestricted = token;
-	                    message = messages_1.Messages.StrictReservedWord;
-	                }
-	            }
-	        }
-	        var previousAllowAwait = this.context.await;
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.await = isAsync;
-	        this.context.allowYield = !isGenerator;
-	        var formalParameters = this.parseFormalParameters(firstRestricted);
-	        var params = formalParameters.params;
-	        var stricted = formalParameters.stricted;
-	        firstRestricted = formalParameters.firstRestricted;
-	        if (formalParameters.message) {
-	            message = formalParameters.message;
-	        }
-	        var previousStrict = this.context.strict;
-	        var previousAllowStrictDirective = this.context.allowStrictDirective;
-	        this.context.allowStrictDirective = formalParameters.simple;
-	        var body = this.parseFunctionSourceElements();
-	        if (this.context.strict && firstRestricted) {
-	            this.throwUnexpectedToken(firstRestricted, message);
-	        }
-	        if (this.context.strict && stricted) {
-	            this.tolerateUnexpectedToken(stricted, message);
-	        }
-	        this.context.strict = previousStrict;
-	        this.context.allowStrictDirective = previousAllowStrictDirective;
-	        this.context.await = previousAllowAwait;
-	        this.context.allowYield = previousAllowYield;
-	        return isAsync ? this.finalize(node, new Node.AsyncFunctionDeclaration(id, params, body)) :
-	            this.finalize(node, new Node.FunctionDeclaration(id, params, body, isGenerator));
-	    };
-	    Parser.prototype.parseFunctionExpression = function () {
-	        var node = this.createNode();
-	        var isAsync = this.matchContextualKeyword('async');
-	        if (isAsync) {
-	            this.nextToken();
-	        }
-	        this.expectKeyword('function');
-	        var isGenerator = isAsync ? false : this.match('*');
-	        if (isGenerator) {
-	            this.nextToken();
-	        }
-	        var message;
-	        var id = null;
-	        var firstRestricted;
-	        var previousAllowAwait = this.context.await;
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.await = isAsync;
-	        this.context.allowYield = !isGenerator;
-	        if (!this.match('(')) {
-	            var token = this.lookahead;
-	            id = (!this.context.strict && !isGenerator && this.matchKeyword('yield')) ? this.parseIdentifierName() : this.parseVariableIdentifier();
-	            if (this.context.strict) {
-	                if (this.scanner.isRestrictedWord(token.value)) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.StrictFunctionName);
-	                }
-	            }
-	            else {
-	                if (this.scanner.isRestrictedWord(token.value)) {
-	                    firstRestricted = token;
-	                    message = messages_1.Messages.StrictFunctionName;
-	                }
-	                else if (this.scanner.isStrictModeReservedWord(token.value)) {
-	                    firstRestricted = token;
-	                    message = messages_1.Messages.StrictReservedWord;
-	                }
-	            }
-	        }
-	        var formalParameters = this.parseFormalParameters(firstRestricted);
-	        var params = formalParameters.params;
-	        var stricted = formalParameters.stricted;
-	        firstRestricted = formalParameters.firstRestricted;
-	        if (formalParameters.message) {
-	            message = formalParameters.message;
-	        }
-	        var previousStrict = this.context.strict;
-	        var previousAllowStrictDirective = this.context.allowStrictDirective;
-	        this.context.allowStrictDirective = formalParameters.simple;
-	        var body = this.parseFunctionSourceElements();
-	        if (this.context.strict && firstRestricted) {
-	            this.throwUnexpectedToken(firstRestricted, message);
-	        }
-	        if (this.context.strict && stricted) {
-	            this.tolerateUnexpectedToken(stricted, message);
-	        }
-	        this.context.strict = previousStrict;
-	        this.context.allowStrictDirective = previousAllowStrictDirective;
-	        this.context.await = previousAllowAwait;
-	        this.context.allowYield = previousAllowYield;
-	        return isAsync ? this.finalize(node, new Node.AsyncFunctionExpression(id, params, body)) :
-	            this.finalize(node, new Node.FunctionExpression(id, params, body, isGenerator));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-directive-prologues-and-the-use-strict-directive
-	    Parser.prototype.parseDirective = function () {
-	        var token = this.lookahead;
-	        var node = this.createNode();
-	        var expr = this.parseExpression();
-	        var directive = (expr.type === syntax_1.Syntax.Literal) ? this.getTokenRaw(token).slice(1, -1) : null;
-	        this.consumeSemicolon();
-	        return this.finalize(node, directive ? new Node.Directive(expr, directive) : new Node.ExpressionStatement(expr));
-	    };
-	    Parser.prototype.parseDirectivePrologues = function () {
-	        var firstRestricted = null;
-	        var body = [];
-	        while (true) {
-	            var token = this.lookahead;
-	            if (token.type !== 8 /* StringLiteral */) {
-	                break;
-	            }
-	            var statement = this.parseDirective();
-	            body.push(statement);
-	            var directive = statement.directive;
-	            if (typeof directive !== 'string') {
-	                break;
-	            }
-	            if (directive === 'use strict') {
-	                this.context.strict = true;
-	                if (firstRestricted) {
-	                    this.tolerateUnexpectedToken(firstRestricted, messages_1.Messages.StrictOctalLiteral);
-	                }
-	                if (!this.context.allowStrictDirective) {
-	                    this.tolerateUnexpectedToken(token, messages_1.Messages.IllegalLanguageModeDirective);
-	                }
-	            }
-	            else {
-	                if (!firstRestricted && token.octal) {
-	                    firstRestricted = token;
-	                }
-	            }
-	        }
-	        return body;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-method-definitions
-	    Parser.prototype.qualifiedPropertyName = function (token) {
-	        switch (token.type) {
-	            case 3 /* Identifier */:
-	            case 8 /* StringLiteral */:
-	            case 1 /* BooleanLiteral */:
-	            case 5 /* NullLiteral */:
-	            case 6 /* NumericLiteral */:
-	            case 4 /* Keyword */:
-	                return true;
-	            case 7 /* Punctuator */:
-	                return token.value === '[';
-	            default:
-	                break;
-	        }
-	        return false;
-	    };
-	    Parser.prototype.parseGetterMethod = function () {
-	        var node = this.createNode();
-	        var isGenerator = false;
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.allowYield = !isGenerator;
-	        var formalParameters = this.parseFormalParameters();
-	        if (formalParameters.params.length > 0) {
-	            this.tolerateError(messages_1.Messages.BadGetterArity);
-	        }
-	        var method = this.parsePropertyMethod(formalParameters);
-	        this.context.allowYield = previousAllowYield;
-	        return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
-	    };
-	    Parser.prototype.parseSetterMethod = function () {
-	        var node = this.createNode();
-	        var isGenerator = false;
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.allowYield = !isGenerator;
-	        var formalParameters = this.parseFormalParameters();
-	        if (formalParameters.params.length !== 1) {
-	            this.tolerateError(messages_1.Messages.BadSetterArity);
-	        }
-	        else if (formalParameters.params[0] instanceof Node.RestElement) {
-	            this.tolerateError(messages_1.Messages.BadSetterRestParameter);
-	        }
-	        var method = this.parsePropertyMethod(formalParameters);
-	        this.context.allowYield = previousAllowYield;
-	        return this.finalize(node, new Node.FunctionExpression(null, formalParameters.params, method, isGenerator));
-	    };
-	    Parser.prototype.parseGeneratorMethod = function () {
-	        var node = this.createNode();
-	        var isGenerator = true;
-	        var previousAllowYield = this.context.allowYield;
-	        this.context.allowYield = true;
-	        var params = this.parseFormalParameters();
-	        this.context.allowYield = false;
-	        var method = this.parsePropertyMethod(params);
-	        this.context.allowYield = previousAllowYield;
-	        return this.finalize(node, new Node.FunctionExpression(null, params.params, method, isGenerator));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-generator-function-definitions
-	    Parser.prototype.isStartOfExpression = function () {
-	        var start = true;
-	        var value = this.lookahead.value;
-	        switch (this.lookahead.type) {
-	            case 7 /* Punctuator */:
-	                start = (value === '[') || (value === '(') || (value === '{') ||
-	                    (value === '+') || (value === '-') ||
-	                    (value === '!') || (value === '~') ||
-	                    (value === '++') || (value === '--') ||
-	                    (value === '/') || (value === '/='); // regular expression literal
-	                break;
-	            case 4 /* Keyword */:
-	                start = (value === 'class') || (value === 'delete') ||
-	                    (value === 'function') || (value === 'let') || (value === 'new') ||
-	                    (value === 'super') || (value === 'this') || (value === 'typeof') ||
-	                    (value === 'void') || (value === 'yield');
-	                break;
-	            default:
-	                break;
-	        }
-	        return start;
-	    };
-	    Parser.prototype.parseYieldExpression = function () {
-	        var node = this.createNode();
-	        this.expectKeyword('yield');
-	        var argument = null;
-	        var delegate = false;
-	        if (!this.hasLineTerminator) {
-	            var previousAllowYield = this.context.allowYield;
-	            this.context.allowYield = false;
-	            delegate = this.match('*');
-	            if (delegate) {
-	                this.nextToken();
-	                argument = this.parseAssignmentExpression();
-	            }
-	            else if (this.isStartOfExpression()) {
-	                argument = this.parseAssignmentExpression();
-	            }
-	            this.context.allowYield = previousAllowYield;
-	        }
-	        return this.finalize(node, new Node.YieldExpression(argument, delegate));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-class-definitions
-	    Parser.prototype.parseClassElement = function (hasConstructor) {
-	        var token = this.lookahead;
-	        var node = this.createNode();
-	        var kind = '';
-	        var key = null;
-	        var value = null;
-	        var computed = false;
-	        var method = false;
-	        var isStatic = false;
-	        var isAsync = false;
-	        if (this.match('*')) {
-	            this.nextToken();
-	        }
-	        else {
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            var id = key;
-	            if (id.name === 'static' && (this.qualifiedPropertyName(this.lookahead) || this.match('*'))) {
-	                token = this.lookahead;
-	                isStatic = true;
-	                computed = this.match('[');
-	                if (this.match('*')) {
-	                    this.nextToken();
-	                }
-	                else {
-	                    key = this.parseObjectPropertyKey();
-	                }
-	            }
-	            if ((token.type === 3 /* Identifier */) && !this.hasLineTerminator && (token.value === 'async')) {
-	                var punctuator = this.lookahead.value;
-	                if (punctuator !== ':' && punctuator !== '(' && punctuator !== '*') {
-	                    isAsync = true;
-	                    token = this.lookahead;
-	                    key = this.parseObjectPropertyKey();
-	                    if (token.type === 3 /* Identifier */ && token.value === 'constructor') {
-	                        this.tolerateUnexpectedToken(token, messages_1.Messages.ConstructorIsAsync);
-	                    }
-	                }
-	            }
-	        }
-	        var lookaheadPropertyKey = this.qualifiedPropertyName(this.lookahead);
-	        if (token.type === 3 /* Identifier */) {
-	            if (token.value === 'get' && lookaheadPropertyKey) {
-	                kind = 'get';
-	                computed = this.match('[');
-	                key = this.parseObjectPropertyKey();
-	                this.context.allowYield = false;
-	                value = this.parseGetterMethod();
-	            }
-	            else if (token.value === 'set' && lookaheadPropertyKey) {
-	                kind = 'set';
-	                computed = this.match('[');
-	                key = this.parseObjectPropertyKey();
-	                value = this.parseSetterMethod();
-	            }
-	        }
-	        else if (token.type === 7 /* Punctuator */ && token.value === '*' && lookaheadPropertyKey) {
-	            kind = 'init';
-	            computed = this.match('[');
-	            key = this.parseObjectPropertyKey();
-	            value = this.parseGeneratorMethod();
-	            method = true;
-	        }
-	        if (!kind && key && this.match('(')) {
-	            kind = 'init';
-	            value = isAsync ? this.parsePropertyMethodAsyncFunction() : this.parsePropertyMethodFunction();
-	            method = true;
-	        }
-	        if (!kind) {
-	            this.throwUnexpectedToken(this.lookahead);
-	        }
-	        if (kind === 'init') {
-	            kind = 'method';
-	        }
-	        if (!computed) {
-	            if (isStatic && this.isPropertyKey(key, 'prototype')) {
-	                this.throwUnexpectedToken(token, messages_1.Messages.StaticPrototype);
-	            }
-	            if (!isStatic && this.isPropertyKey(key, 'constructor')) {
-	                if (kind !== 'method' || !method || (value && value.generator)) {
-	                    this.throwUnexpectedToken(token, messages_1.Messages.ConstructorSpecialMethod);
-	                }
-	                if (hasConstructor.value) {
-	                    this.throwUnexpectedToken(token, messages_1.Messages.DuplicateConstructor);
-	                }
-	                else {
-	                    hasConstructor.value = true;
-	                }
-	                kind = 'constructor';
-	            }
-	        }
-	        return this.finalize(node, new Node.MethodDefinition(key, computed, value, kind, isStatic));
-	    };
-	    Parser.prototype.parseClassElementList = function () {
-	        var body = [];
-	        var hasConstructor = { value: false };
-	        this.expect('{');
-	        while (!this.match('}')) {
-	            if (this.match(';')) {
-	                this.nextToken();
-	            }
-	            else {
-	                body.push(this.parseClassElement(hasConstructor));
-	            }
-	        }
-	        this.expect('}');
-	        return body;
-	    };
-	    Parser.prototype.parseClassBody = function () {
-	        var node = this.createNode();
-	        var elementList = this.parseClassElementList();
-	        return this.finalize(node, new Node.ClassBody(elementList));
-	    };
-	    Parser.prototype.parseClassDeclaration = function (identifierIsOptional) {
-	        var node = this.createNode();
-	        var previousStrict = this.context.strict;
-	        this.context.strict = true;
-	        this.expectKeyword('class');
-	        var id = (identifierIsOptional && (this.lookahead.type !== 3 /* Identifier */)) ? null : this.parseVariableIdentifier();
-	        var superClass = null;
-	        if (this.matchKeyword('extends')) {
-	            this.nextToken();
-	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
-	        }
-	        var classBody = this.parseClassBody();
-	        this.context.strict = previousStrict;
-	        return this.finalize(node, new Node.ClassDeclaration(id, superClass, classBody));
-	    };
-	    Parser.prototype.parseClassExpression = function () {
-	        var node = this.createNode();
-	        var previousStrict = this.context.strict;
-	        this.context.strict = true;
-	        this.expectKeyword('class');
-	        var id = (this.lookahead.type === 3 /* Identifier */) ? this.parseVariableIdentifier() : null;
-	        var superClass = null;
-	        if (this.matchKeyword('extends')) {
-	            this.nextToken();
-	            superClass = this.isolateCoverGrammar(this.parseLeftHandSideExpressionAllowCall);
-	        }
-	        var classBody = this.parseClassBody();
-	        this.context.strict = previousStrict;
-	        return this.finalize(node, new Node.ClassExpression(id, superClass, classBody));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-scripts
-	    // https://tc39.github.io/ecma262/#sec-modules
-	    Parser.prototype.parseModule = function () {
-	        this.context.strict = true;
-	        this.context.isModule = true;
-	        this.scanner.isModule = true;
-	        var node = this.createNode();
-	        var body = this.parseDirectivePrologues();
-	        while (this.lookahead.type !== 2 /* EOF */) {
-	            body.push(this.parseStatementListItem());
-	        }
-	        return this.finalize(node, new Node.Module(body));
-	    };
-	    Parser.prototype.parseScript = function () {
-	        var node = this.createNode();
-	        var body = this.parseDirectivePrologues();
-	        while (this.lookahead.type !== 2 /* EOF */) {
-	            body.push(this.parseStatementListItem());
-	        }
-	        return this.finalize(node, new Node.Script(body));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-imports
-	    Parser.prototype.parseModuleSpecifier = function () {
-	        var node = this.createNode();
-	        if (this.lookahead.type !== 8 /* StringLiteral */) {
-	            this.throwError(messages_1.Messages.InvalidModuleSpecifier);
-	        }
-	        var token = this.nextToken();
-	        var raw = this.getTokenRaw(token);
-	        return this.finalize(node, new Node.Literal(token.value, raw));
-	    };
-	    // import {<foo as bar>} ...;
-	    Parser.prototype.parseImportSpecifier = function () {
-	        var node = this.createNode();
-	        var imported;
-	        var local;
-	        if (this.lookahead.type === 3 /* Identifier */) {
-	            imported = this.parseVariableIdentifier();
-	            local = imported;
-	            if (this.matchContextualKeyword('as')) {
-	                this.nextToken();
-	                local = this.parseVariableIdentifier();
-	            }
-	        }
-	        else {
-	            imported = this.parseIdentifierName();
-	            local = imported;
-	            if (this.matchContextualKeyword('as')) {
-	                this.nextToken();
-	                local = this.parseVariableIdentifier();
-	            }
-	            else {
-	                this.throwUnexpectedToken(this.nextToken());
-	            }
-	        }
-	        return this.finalize(node, new Node.ImportSpecifier(local, imported));
-	    };
-	    // {foo, bar as bas}
-	    Parser.prototype.parseNamedImports = function () {
-	        this.expect('{');
-	        var specifiers = [];
-	        while (!this.match('}')) {
-	            specifiers.push(this.parseImportSpecifier());
-	            if (!this.match('}')) {
-	                this.expect(',');
-	            }
-	        }
-	        this.expect('}');
-	        return specifiers;
-	    };
-	    // import <foo> ...;
-	    Parser.prototype.parseImportDefaultSpecifier = function () {
-	        var node = this.createNode();
-	        var local = this.parseIdentifierName();
-	        return this.finalize(node, new Node.ImportDefaultSpecifier(local));
-	    };
-	    // import <* as foo> ...;
-	    Parser.prototype.parseImportNamespaceSpecifier = function () {
-	        var node = this.createNode();
-	        this.expect('*');
-	        if (!this.matchContextualKeyword('as')) {
-	            this.throwError(messages_1.Messages.NoAsAfterImportNamespace);
-	        }
-	        this.nextToken();
-	        var local = this.parseIdentifierName();
-	        return this.finalize(node, new Node.ImportNamespaceSpecifier(local));
-	    };
-	    Parser.prototype.parseImportDeclaration = function () {
-	        if (this.context.inFunctionBody) {
-	            this.throwError(messages_1.Messages.IllegalImportDeclaration);
-	        }
-	        var node = this.createNode();
-	        this.expectKeyword('import');
-	        var src;
-	        var specifiers = [];
-	        if (this.lookahead.type === 8 /* StringLiteral */) {
-	            // import 'foo';
-	            src = this.parseModuleSpecifier();
-	        }
-	        else {
-	            if (this.match('{')) {
-	                // import {bar}
-	                specifiers = specifiers.concat(this.parseNamedImports());
-	            }
-	            else if (this.match('*')) {
-	                // import * as foo
-	                specifiers.push(this.parseImportNamespaceSpecifier());
-	            }
-	            else if (this.isIdentifierName(this.lookahead) && !this.matchKeyword('default')) {
-	                // import foo
-	                specifiers.push(this.parseImportDefaultSpecifier());
-	                if (this.match(',')) {
-	                    this.nextToken();
-	                    if (this.match('*')) {
-	                        // import foo, * as foo
-	                        specifiers.push(this.parseImportNamespaceSpecifier());
-	                    }
-	                    else if (this.match('{')) {
-	                        // import foo, {bar}
-	                        specifiers = specifiers.concat(this.parseNamedImports());
-	                    }
-	                    else {
-	                        this.throwUnexpectedToken(this.lookahead);
-	                    }
-	                }
-	            }
-	            else {
-	                this.throwUnexpectedToken(this.nextToken());
-	            }
-	            if (!this.matchContextualKeyword('from')) {
-	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
-	                this.throwError(message, this.lookahead.value);
-	            }
-	            this.nextToken();
-	            src = this.parseModuleSpecifier();
-	        }
-	        this.consumeSemicolon();
-	        return this.finalize(node, new Node.ImportDeclaration(specifiers, src));
-	    };
-	    // https://tc39.github.io/ecma262/#sec-exports
-	    Parser.prototype.parseExportSpecifier = function () {
-	        var node = this.createNode();
-	        var local = this.parseIdentifierName();
-	        var exported = local;
-	        if (this.matchContextualKeyword('as')) {
-	            this.nextToken();
-	            exported = this.parseIdentifierName();
-	        }
-	        return this.finalize(node, new Node.ExportSpecifier(local, exported));
-	    };
-	    Parser.prototype.parseExportDeclaration = function () {
-	        if (this.context.inFunctionBody) {
-	            this.throwError(messages_1.Messages.IllegalExportDeclaration);
-	        }
-	        var node = this.createNode();
-	        this.expectKeyword('export');
-	        var exportDeclaration;
-	        if (this.matchKeyword('default')) {
-	            // export default ...
-	            this.nextToken();
-	            if (this.matchKeyword('function')) {
-	                // export default function foo () {}
-	                // export default function () {}
-	                var declaration = this.parseFunctionDeclaration(true);
-	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
-	            }
-	            else if (this.matchKeyword('class')) {
-	                // export default class foo {}
-	                var declaration = this.parseClassDeclaration(true);
-	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
-	            }
-	            else if (this.matchContextualKeyword('async')) {
-	                // export default async function f () {}
-	                // export default async function () {}
-	                // export default async x => x
-	                var declaration = this.matchAsyncFunction() ? this.parseFunctionDeclaration(true) : this.parseAssignmentExpression();
-	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
-	            }
-	            else {
-	                if (this.matchContextualKeyword('from')) {
-	                    this.throwError(messages_1.Messages.UnexpectedToken, this.lookahead.value);
-	                }
-	                // export default {};
-	                // export default [];
-	                // export default (1 + 2);
-	                var declaration = this.match('{') ? this.parseObjectInitializer() :
-	                    this.match('[') ? this.parseArrayInitializer() : this.parseAssignmentExpression();
-	                this.consumeSemicolon();
-	                exportDeclaration = this.finalize(node, new Node.ExportDefaultDeclaration(declaration));
-	            }
-	        }
-	        else if (this.match('*')) {
-	            // export * from 'foo';
-	            this.nextToken();
-	            if (!this.matchContextualKeyword('from')) {
-	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
-	                this.throwError(message, this.lookahead.value);
-	            }
-	            this.nextToken();
-	            var src = this.parseModuleSpecifier();
-	            this.consumeSemicolon();
-	            exportDeclaration = this.finalize(node, new Node.ExportAllDeclaration(src));
-	        }
-	        else if (this.lookahead.type === 4 /* Keyword */) {
-	            // export var f = 1;
-	            var declaration = void 0;
-	            switch (this.lookahead.value) {
-	                case 'let':
-	                case 'const':
-	                    declaration = this.parseLexicalDeclaration({ inFor: false });
-	                    break;
-	                case 'var':
-	                case 'class':
-	                case 'function':
-	                    declaration = this.parseStatementListItem();
-	                    break;
-	                default:
-	                    this.throwUnexpectedToken(this.lookahead);
-	            }
-	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
-	        }
-	        else if (this.matchAsyncFunction()) {
-	            var declaration = this.parseFunctionDeclaration();
-	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(declaration, [], null));
-	        }
-	        else {
-	            var specifiers = [];
-	            var source = null;
-	            var isExportFromIdentifier = false;
-	            this.expect('{');
-	            while (!this.match('}')) {
-	                isExportFromIdentifier = isExportFromIdentifier || this.matchKeyword('default');
-	                specifiers.push(this.parseExportSpecifier());
-	                if (!this.match('}')) {
-	                    this.expect(',');
-	                }
-	            }
-	            this.expect('}');
-	            if (this.matchContextualKeyword('from')) {
-	                // export {default} from 'foo';
-	                // export {foo} from 'foo';
-	                this.nextToken();
-	                source = this.parseModuleSpecifier();
-	                this.consumeSemicolon();
-	            }
-	            else if (isExportFromIdentifier) {
-	                // export {default}; // missing fromClause
-	                var message = this.lookahead.value ? messages_1.Messages.UnexpectedToken : messages_1.Messages.MissingFromClause;
-	                this.throwError(message, this.lookahead.value);
-	            }
-	            else {
-	                // export {foo};
-	                this.consumeSemicolon();
-	            }
-	            exportDeclaration = this.finalize(node, new Node.ExportNamedDeclaration(null, specifiers, source));
-	        }
-	        return exportDeclaration;
-	    };
-	    return Parser;
-	}());
-	exports.Parser = Parser;
-
-
-/***/ },
-/* 9 */
-/***/ function(module, exports) {
-
-	"use strict";
-	// Ensure the condition is true, otherwise throw an error.
-	// This is only to have a better contract semantic, i.e. another safety net
-	// to catch a logic error. The condition shall be fulfilled in normal case.
-	// Do NOT use this to enforce a certain condition on any user input.
-	Object.defineProperty(exports, "__esModule", { value: true });
-	function assert(condition, message) {
-	    /* istanbul ignore if */
-	    if (!condition) {
-	        throw new Error('ASSERT: ' + message);
-	    }
-	}
-	exports.assert = assert;
-
-
-/***/ },
-/* 10 */
-/***/ function(module, exports) {
-
-	"use strict";
-	/* tslint:disable:max-classes-per-file */
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var ErrorHandler = (function () {
-	    function ErrorHandler() {
-	        this.errors = [];
-	        this.tolerant = false;
-	    }
-	    ErrorHandler.prototype.recordError = function (error) {
-	        this.errors.push(error);
-	    };
-	    ErrorHandler.prototype.tolerate = function (error) {
-	        if (this.tolerant) {
-	            this.recordError(error);
-	        }
-	        else {
-	            throw error;
-	        }
-	    };
-	    ErrorHandler.prototype.constructError = function (msg, column) {
-	        var error = new Error(msg);
-	        try {
-	            throw error;
-	        }
-	        catch (base) {
-	            /* istanbul ignore else */
-	            if (Object.create && Object.defineProperty) {
-	                error = Object.create(base);
-	                Object.defineProperty(error, 'column', { value: column });
-	            }
-	        }
-	        /* istanbul ignore next */
-	        return error;
-	    };
-	    ErrorHandler.prototype.createError = function (index, line, col, description) {
-	        var msg = 'Line ' + line + ': ' + description;
-	        var error = this.constructError(msg, col);
-	        error.index = index;
-	        error.lineNumber = line;
-	        error.description = description;
-	        return error;
-	    };
-	    ErrorHandler.prototype.throwError = function (index, line, col, description) {
-	        throw this.createError(index, line, col, description);
-	    };
-	    ErrorHandler.prototype.tolerateError = function (index, line, col, description) {
-	        var error = this.createError(index, line, col, description);
-	        if (this.tolerant) {
-	            this.recordError(error);
-	        }
-	        else {
-	            throw error;
-	        }
-	    };
-	    return ErrorHandler;
-	}());
-	exports.ErrorHandler = ErrorHandler;
-
-
-/***/ },
-/* 11 */
-/***/ function(module, exports) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	// Error messages should be identical to V8.
-	exports.Messages = {
-	    BadGetterArity: 'Getter must not have any formal parameters',
-	    BadSetterArity: 'Setter must have exactly one formal parameter',
-	    BadSetterRestParameter: 'Setter function argument must not be a rest parameter',
-	    ConstructorIsAsync: 'Class constructor may not be an async method',
-	    ConstructorSpecialMethod: 'Class constructor may not be an accessor',
-	    DeclarationMissingInitializer: 'Missing initializer in %0 declaration',
-	    DefaultRestParameter: 'Unexpected token =',
-	    DuplicateBinding: 'Duplicate binding %0',
-	    DuplicateConstructor: 'A class may only have one constructor',
-	    DuplicateProtoProperty: 'Duplicate __proto__ fields are not allowed in object literals',
-	    ForInOfLoopInitializer: '%0 loop variable declaration may not have an initializer',
-	    GeneratorInLegacyContext: 'Generator declarations are not allowed in legacy contexts',
-	    IllegalBreak: 'Illegal break statement',
-	    IllegalContinue: 'Illegal continue statement',
-	    IllegalExportDeclaration: 'Unexpected token',
-	    IllegalImportDeclaration: 'Unexpected token',
-	    IllegalLanguageModeDirective: 'Illegal \'use strict\' directive in function with non-simple parameter list',
-	    IllegalReturn: 'Illegal return statement',
-	    InvalidEscapedReservedWord: 'Keyword must not contain escaped characters',
-	    InvalidHexEscapeSequence: 'Invalid hexadecimal escape sequence',
-	    InvalidLHSInAssignment: 'Invalid left-hand side in assignment',
-	    InvalidLHSInForIn: 'Invalid left-hand side in for-in',
-	    InvalidLHSInForLoop: 'Invalid left-hand side in for-loop',
-	    InvalidModuleSpecifier: 'Unexpected token',
-	    InvalidRegExp: 'Invalid regular expression',
-	    LetInLexicalBinding: 'let is disallowed as a lexically bound name',
-	    MissingFromClause: 'Unexpected token',
-	    MultipleDefaultsInSwitch: 'More than one default clause in switch statement',
-	    NewlineAfterThrow: 'Illegal newline after throw',
-	    NoAsAfterImportNamespace: 'Unexpected token',
-	    NoCatchOrFinally: 'Missing catch or finally after try',
-	    ParameterAfterRestParameter: 'Rest parameter must be last formal parameter',
-	    Redeclaration: '%0 \'%1\' has already been declared',
-	    StaticPrototype: 'Classes may not have static property named prototype',
-	    StrictCatchVariable: 'Catch variable may not be eval or arguments in strict mode',
-	    StrictDelete: 'Delete of an unqualified identifier in strict mode.',
-	    StrictFunction: 'In strict mode code, functions can only be declared at top level or inside a block',
-	    StrictFunctionName: 'Function name may not be eval or arguments in strict mode',
-	    StrictLHSAssignment: 'Assignment to eval or arguments is not allowed in strict mode',
-	    StrictLHSPostfix: 'Postfix increment/decrement may not have eval or arguments operand in strict mode',
-	    StrictLHSPrefix: 'Prefix increment/decrement may not have eval or arguments operand in strict mode',
-	    StrictModeWith: 'Strict mode code may not include a with statement',
-	    StrictOctalLiteral: 'Octal literals are not allowed in strict mode.',
-	    StrictParamDupe: 'Strict mode function may not have duplicate parameter names',
-	    StrictParamName: 'Parameter name eval or arguments is not allowed in strict mode',
-	    StrictReservedWord: 'Use of future reserved word in strict mode',
-	    StrictVarName: 'Variable name may not be eval or arguments in strict mode',
-	    TemplateOctalLiteral: 'Octal literals are not allowed in template strings.',
-	    UnexpectedEOS: 'Unexpected end of input',
-	    UnexpectedIdentifier: 'Unexpected identifier',
-	    UnexpectedNumber: 'Unexpected number',
-	    UnexpectedReserved: 'Unexpected reserved word',
-	    UnexpectedString: 'Unexpected string',
-	    UnexpectedTemplate: 'Unexpected quasi %0',
-	    UnexpectedToken: 'Unexpected token %0',
-	    UnexpectedTokenIllegal: 'Unexpected token ILLEGAL',
-	    UnknownLabel: 'Undefined label \'%0\'',
-	    UnterminatedRegExp: 'Invalid regular expression: missing /'
-	};
-
-
-/***/ },
-/* 12 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var assert_1 = __webpack_require__(9);
-	var character_1 = __webpack_require__(4);
-	var messages_1 = __webpack_require__(11);
-	function hexValue(ch) {
-	    return '0123456789abcdef'.indexOf(ch.toLowerCase());
-	}
-	function octalValue(ch) {
-	    return '01234567'.indexOf(ch);
-	}
-	var Scanner = (function () {
-	    function Scanner(code, handler) {
-	        this.source = code;
-	        this.errorHandler = handler;
-	        this.trackComment = false;
-	        this.isModule = false;
-	        this.length = code.length;
-	        this.index = 0;
-	        this.lineNumber = (code.length > 0) ? 1 : 0;
-	        this.lineStart = 0;
-	        this.curlyStack = [];
-	    }
-	    Scanner.prototype.saveState = function () {
-	        return {
-	            index: this.index,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart
-	        };
-	    };
-	    Scanner.prototype.restoreState = function (state) {
-	        this.index = state.index;
-	        this.lineNumber = state.lineNumber;
-	        this.lineStart = state.lineStart;
-	    };
-	    Scanner.prototype.eof = function () {
-	        return this.index >= this.length;
-	    };
-	    Scanner.prototype.throwUnexpectedToken = function (message) {
-	        if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
-	        return this.errorHandler.throwError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
-	    };
-	    Scanner.prototype.tolerateUnexpectedToken = function (message) {
-	        if (message === void 0) { message = messages_1.Messages.UnexpectedTokenIllegal; }
-	        this.errorHandler.tolerateError(this.index, this.lineNumber, this.index - this.lineStart + 1, message);
-	    };
-	    // https://tc39.github.io/ecma262/#sec-comments
-	    Scanner.prototype.skipSingleLineComment = function (offset) {
-	        var comments = [];
-	        var start, loc;
-	        if (this.trackComment) {
-	            comments = [];
-	            start = this.index - offset;
-	            loc = {
-	                start: {
-	                    line: this.lineNumber,
-	                    column: this.index - this.lineStart - offset
-	                },
-	                end: {}
-	            };
-	        }
-	        while (!this.eof()) {
-	            var ch = this.source.charCodeAt(this.index);
-	            ++this.index;
-	            if (character_1.Character.isLineTerminator(ch)) {
-	                if (this.trackComment) {
-	                    loc.end = {
-	                        line: this.lineNumber,
-	                        column: this.index - this.lineStart - 1
-	                    };
-	                    var entry = {
-	                        multiLine: false,
-	                        slice: [start + offset, this.index - 1],
-	                        range: [start, this.index - 1],
-	                        loc: loc
-	                    };
-	                    comments.push(entry);
-	                }
-	                if (ch === 13 && this.source.charCodeAt(this.index) === 10) {
-	                    ++this.index;
-	                }
-	                ++this.lineNumber;
-	                this.lineStart = this.index;
-	                return comments;
-	            }
-	        }
-	        if (this.trackComment) {
-	            loc.end = {
-	                line: this.lineNumber,
-	                column: this.index - this.lineStart
-	            };
-	            var entry = {
-	                multiLine: false,
-	                slice: [start + offset, this.index],
-	                range: [start, this.index],
-	                loc: loc
-	            };
-	            comments.push(entry);
-	        }
-	        return comments;
-	    };
-	    Scanner.prototype.skipMultiLineComment = function () {
-	        var comments = [];
-	        var start, loc;
-	        if (this.trackComment) {
-	            comments = [];
-	            start = this.index - 2;
-	            loc = {
-	                start: {
-	                    line: this.lineNumber,
-	                    column: this.index - this.lineStart - 2
-	                },
-	                end: {}
-	            };
-	        }
-	        while (!this.eof()) {
-	            var ch = this.source.charCodeAt(this.index);
-	            if (character_1.Character.isLineTerminator(ch)) {
-	                if (ch === 0x0D && this.source.charCodeAt(this.index + 1) === 0x0A) {
-	                    ++this.index;
-	                }
-	                ++this.lineNumber;
-	                ++this.index;
-	                this.lineStart = this.index;
-	            }
-	            else if (ch === 0x2A) {
-	                // Block comment ends with '*/'.
-	                if (this.source.charCodeAt(this.index + 1) === 0x2F) {
-	                    this.index += 2;
-	                    if (this.trackComment) {
-	                        loc.end = {
-	                            line: this.lineNumber,
-	                            column: this.index - this.lineStart
-	                        };
-	                        var entry = {
-	                            multiLine: true,
-	                            slice: [start + 2, this.index - 2],
-	                            range: [start, this.index],
-	                            loc: loc
-	                        };
-	                        comments.push(entry);
-	                    }
-	                    return comments;
-	                }
-	                ++this.index;
-	            }
-	            else {
-	                ++this.index;
-	            }
-	        }
-	        // Ran off the end of the file - the whole thing is a comment
-	        if (this.trackComment) {
-	            loc.end = {
-	                line: this.lineNumber,
-	                column: this.index - this.lineStart
-	            };
-	            var entry = {
-	                multiLine: true,
-	                slice: [start + 2, this.index],
-	                range: [start, this.index],
-	                loc: loc
-	            };
-	            comments.push(entry);
-	        }
-	        this.tolerateUnexpectedToken();
-	        return comments;
-	    };
-	    Scanner.prototype.scanComments = function () {
-	        var comments;
-	        if (this.trackComment) {
-	            comments = [];
-	        }
-	        var start = (this.index === 0);
-	        while (!this.eof()) {
-	            var ch = this.source.charCodeAt(this.index);
-	            if (character_1.Character.isWhiteSpace(ch)) {
-	                ++this.index;
-	            }
-	            else if (character_1.Character.isLineTerminator(ch)) {
-	                ++this.index;
-	                if (ch === 0x0D && this.source.charCodeAt(this.index) === 0x0A) {
-	                    ++this.index;
-	                }
-	                ++this.lineNumber;
-	                this.lineStart = this.index;
-	                start = true;
-	            }
-	            else if (ch === 0x2F) {
-	                ch = this.source.charCodeAt(this.index + 1);
-	                if (ch === 0x2F) {
-	                    this.index += 2;
-	                    var comment = this.skipSingleLineComment(2);
-	                    if (this.trackComment) {
-	                        comments = comments.concat(comment);
-	                    }
-	                    start = true;
-	                }
-	                else if (ch === 0x2A) {
-	                    this.index += 2;
-	                    var comment = this.skipMultiLineComment();
-	                    if (this.trackComment) {
-	                        comments = comments.concat(comment);
-	                    }
-	                }
-	                else {
-	                    break;
-	                }
-	            }
-	            else if (start && ch === 0x2D) {
-	                // U+003E is '>'
-	                if ((this.source.charCodeAt(this.index + 1) === 0x2D) && (this.source.charCodeAt(this.index + 2) === 0x3E)) {
-	                    // '-->' is a single-line comment
-	                    this.index += 3;
-	                    var comment = this.skipSingleLineComment(3);
-	                    if (this.trackComment) {
-	                        comments = comments.concat(comment);
-	                    }
-	                }
-	                else {
-	                    break;
-	                }
-	            }
-	            else if (ch === 0x3C && !this.isModule) {
-	                if (this.source.slice(this.index + 1, this.index + 4) === '!--') {
-	                    this.index += 4; // `<!--`
-	                    var comment = this.skipSingleLineComment(4);
-	                    if (this.trackComment) {
-	                        comments = comments.concat(comment);
-	                    }
-	                }
-	                else {
-	                    break;
-	                }
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        return comments;
-	    };
-	    // https://tc39.github.io/ecma262/#sec-future-reserved-words
-	    Scanner.prototype.isFutureReservedWord = function (id) {
-	        switch (id) {
-	            case 'enum':
-	            case 'export':
-	            case 'import':
-	            case 'super':
-	                return true;
-	            default:
-	                return false;
-	        }
-	    };
-	    Scanner.prototype.isStrictModeReservedWord = function (id) {
-	        switch (id) {
-	            case 'implements':
-	            case 'interface':
-	            case 'package':
-	            case 'private':
-	            case 'protected':
-	            case 'public':
-	            case 'static':
-	            case 'yield':
-	            case 'let':
-	                return true;
-	            default:
-	                return false;
-	        }
-	    };
-	    Scanner.prototype.isRestrictedWord = function (id) {
-	        return id === 'eval' || id === 'arguments';
-	    };
-	    // https://tc39.github.io/ecma262/#sec-keywords
-	    Scanner.prototype.isKeyword = function (id) {
-	        switch (id.length) {
-	            case 2:
-	                return (id === 'if') || (id === 'in') || (id === 'do');
-	            case 3:
-	                return (id === 'var') || (id === 'for') || (id === 'new') ||
-	                    (id === 'try') || (id === 'let');
-	            case 4:
-	                return (id === 'this') || (id === 'else') || (id === 'case') ||
-	                    (id === 'void') || (id === 'with') || (id === 'enum');
-	            case 5:
-	                return (id === 'while') || (id === 'break') || (id === 'catch') ||
-	                    (id === 'throw') || (id === 'const') || (id === 'yield') ||
-	                    (id === 'class') || (id === 'super');
-	            case 6:
-	                return (id === 'return') || (id === 'typeof') || (id === 'delete') ||
-	                    (id === 'switch') || (id === 'export') || (id === 'import');
-	            case 7:
-	                return (id === 'default') || (id === 'finally') || (id === 'extends');
-	            case 8:
-	                return (id === 'function') || (id === 'continue') || (id === 'debugger');
-	            case 10:
-	                return (id === 'instanceof');
-	            default:
-	                return false;
-	        }
-	    };
-	    Scanner.prototype.codePointAt = function (i) {
-	        var cp = this.source.charCodeAt(i);
-	        if (cp >= 0xD800 && cp <= 0xDBFF) {
-	            var second = this.source.charCodeAt(i + 1);
-	            if (second >= 0xDC00 && second <= 0xDFFF) {
-	                var first = cp;
-	                cp = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
-	            }
-	        }
-	        return cp;
-	    };
-	    Scanner.prototype.scanHexEscape = function (prefix) {
-	        var len = (prefix === 'u') ? 4 : 2;
-	        var code = 0;
-	        for (var i = 0; i < len; ++i) {
-	            if (!this.eof() && character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
-	                code = code * 16 + hexValue(this.source[this.index++]);
-	            }
-	            else {
-	                return null;
-	            }
-	        }
-	        return String.fromCharCode(code);
-	    };
-	    Scanner.prototype.scanUnicodeCodePointEscape = function () {
-	        var ch = this.source[this.index];
-	        var code = 0;
-	        // At least, one hex digit is required.
-	        if (ch === '}') {
-	            this.throwUnexpectedToken();
-	        }
-	        while (!this.eof()) {
-	            ch = this.source[this.index++];
-	            if (!character_1.Character.isHexDigit(ch.charCodeAt(0))) {
-	                break;
-	            }
-	            code = code * 16 + hexValue(ch);
-	        }
-	        if (code > 0x10FFFF || ch !== '}') {
-	            this.throwUnexpectedToken();
-	        }
-	        return character_1.Character.fromCodePoint(code);
-	    };
-	    Scanner.prototype.getIdentifier = function () {
-	        var start = this.index++;
-	        while (!this.eof()) {
-	            var ch = this.source.charCodeAt(this.index);
-	            if (ch === 0x5C) {
-	                // Blackslash (U+005C) marks Unicode escape sequence.
-	                this.index = start;
-	                return this.getComplexIdentifier();
-	            }
-	            else if (ch >= 0xD800 && ch < 0xDFFF) {
-	                // Need to handle surrogate pairs.
-	                this.index = start;
-	                return this.getComplexIdentifier();
-	            }
-	            if (character_1.Character.isIdentifierPart(ch)) {
-	                ++this.index;
-	            }
-	            else {
-	                break;
-	            }
-	        }
-	        return this.source.slice(start, this.index);
-	    };
-	    Scanner.prototype.getComplexIdentifier = function () {
-	        var cp = this.codePointAt(this.index);
-	        var id = character_1.Character.fromCodePoint(cp);
-	        this.index += id.length;
-	        // '\u' (U+005C, U+0075) denotes an escaped character.
-	        var ch;
-	        if (cp === 0x5C) {
-	            if (this.source.charCodeAt(this.index) !== 0x75) {
-	                this.throwUnexpectedToken();
-	            }
-	            ++this.index;
-	            if (this.source[this.index] === '{') {
-	                ++this.index;
-	                ch = this.scanUnicodeCodePointEscape();
-	            }
-	            else {
-	                ch = this.scanHexEscape('u');
-	                if (ch === null || ch === '\\' || !character_1.Character.isIdentifierStart(ch.charCodeAt(0))) {
-	                    this.throwUnexpectedToken();
-	                }
-	            }
-	            id = ch;
-	        }
-	        while (!this.eof()) {
-	            cp = this.codePointAt(this.index);
-	            if (!character_1.Character.isIdentifierPart(cp)) {
-	                break;
-	            }
-	            ch = character_1.Character.fromCodePoint(cp);
-	            id += ch;
-	            this.index += ch.length;
-	            // '\u' (U+005C, U+0075) denotes an escaped character.
-	            if (cp === 0x5C) {
-	                id = id.substr(0, id.length - 1);
-	                if (this.source.charCodeAt(this.index) !== 0x75) {
-	                    this.throwUnexpectedToken();
-	                }
-	                ++this.index;
-	                if (this.source[this.index] === '{') {
-	                    ++this.index;
-	                    ch = this.scanUnicodeCodePointEscape();
-	                }
-	                else {
-	                    ch = this.scanHexEscape('u');
-	                    if (ch === null || ch === '\\' || !character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
-	                        this.throwUnexpectedToken();
-	                    }
-	                }
-	                id += ch;
-	            }
-	        }
-	        return id;
-	    };
-	    Scanner.prototype.octalToDecimal = function (ch) {
-	        // \0 is not octal escape sequence
-	        var octal = (ch !== '0');
-	        var code = octalValue(ch);
-	        if (!this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
-	            octal = true;
-	            code = code * 8 + octalValue(this.source[this.index++]);
-	            // 3 digits are only allowed when string starts
-	            // with 0, 1, 2, 3
-	            if ('0123'.indexOf(ch) >= 0 && !this.eof() && character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
-	                code = code * 8 + octalValue(this.source[this.index++]);
-	            }
-	        }
-	        return {
-	            code: code,
-	            octal: octal
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-names-and-keywords
-	    Scanner.prototype.scanIdentifier = function () {
-	        var type;
-	        var start = this.index;
-	        // Backslash (U+005C) starts an escaped character.
-	        var id = (this.source.charCodeAt(start) === 0x5C) ? this.getComplexIdentifier() : this.getIdentifier();
-	        // There is no keyword or literal with only one character.
-	        // Thus, it must be an identifier.
-	        if (id.length === 1) {
-	            type = 3 /* Identifier */;
-	        }
-	        else if (this.isKeyword(id)) {
-	            type = 4 /* Keyword */;
-	        }
-	        else if (id === 'null') {
-	            type = 5 /* NullLiteral */;
-	        }
-	        else if (id === 'true' || id === 'false') {
-	            type = 1 /* BooleanLiteral */;
-	        }
-	        else {
-	            type = 3 /* Identifier */;
-	        }
-	        if (type !== 3 /* Identifier */ && (start + id.length !== this.index)) {
-	            var restore = this.index;
-	            this.index = start;
-	            this.tolerateUnexpectedToken(messages_1.Messages.InvalidEscapedReservedWord);
-	            this.index = restore;
-	        }
-	        return {
-	            type: type,
-	            value: id,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-punctuators
-	    Scanner.prototype.scanPunctuator = function () {
-	        var start = this.index;
-	        // Check for most common single-character punctuators.
-	        var str = this.source[this.index];
-	        switch (str) {
-	            case '(':
-	            case '{':
-	                if (str === '{') {
-	                    this.curlyStack.push('{');
-	                }
-	                ++this.index;
-	                break;
-	            case '.':
-	                ++this.index;
-	                if (this.source[this.index] === '.' && this.source[this.index + 1] === '.') {
-	                    // Spread operator: ...
-	                    this.index += 2;
-	                    str = '...';
-	                }
-	                break;
-	            case '}':
-	                ++this.index;
-	                this.curlyStack.pop();
-	                break;
-	            case ')':
-	            case ';':
-	            case ',':
-	            case '[':
-	            case ']':
-	            case ':':
-	            case '?':
-	            case '~':
-	                ++this.index;
-	                break;
-	            default:
-	                // 4-character punctuator.
-	                str = this.source.substr(this.index, 4);
-	                if (str === '>>>=') {
-	                    this.index += 4;
-	                }
-	                else {
-	                    // 3-character punctuators.
-	                    str = str.substr(0, 3);
-	                    if (str === '===' || str === '!==' || str === '>>>' ||
-	                        str === '<<=' || str === '>>=' || str === '**=') {
-	                        this.index += 3;
-	                    }
-	                    else {
-	                        // 2-character punctuators.
-	                        str = str.substr(0, 2);
-	                        if (str === '&&' || str === '||' || str === '==' || str === '!=' ||
-	                            str === '+=' || str === '-=' || str === '*=' || str === '/=' ||
-	                            str === '++' || str === '--' || str === '<<' || str === '>>' ||
-	                            str === '&=' || str === '|=' || str === '^=' || str === '%=' ||
-	                            str === '<=' || str === '>=' || str === '=>' || str === '**') {
-	                            this.index += 2;
-	                        }
-	                        else {
-	                            // 1-character punctuators.
-	                            str = this.source[this.index];
-	                            if ('<>=!+-*%&|^/'.indexOf(str) >= 0) {
-	                                ++this.index;
-	                            }
-	                        }
-	                    }
-	                }
-	        }
-	        if (this.index === start) {
-	            this.throwUnexpectedToken();
-	        }
-	        return {
-	            type: 7 /* Punctuator */,
-	            value: str,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-literals-numeric-literals
-	    Scanner.prototype.scanHexLiteral = function (start) {
-	        var num = '';
-	        while (!this.eof()) {
-	            if (!character_1.Character.isHexDigit(this.source.charCodeAt(this.index))) {
-	                break;
-	            }
-	            num += this.source[this.index++];
-	        }
-	        if (num.length === 0) {
-	            this.throwUnexpectedToken();
-	        }
-	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
-	            this.throwUnexpectedToken();
-	        }
-	        return {
-	            type: 6 /* NumericLiteral */,
-	            value: parseInt('0x' + num, 16),
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    Scanner.prototype.scanBinaryLiteral = function (start) {
-	        var num = '';
-	        var ch;
-	        while (!this.eof()) {
-	            ch = this.source[this.index];
-	            if (ch !== '0' && ch !== '1') {
-	                break;
-	            }
-	            num += this.source[this.index++];
-	        }
-	        if (num.length === 0) {
-	            // only 0b or 0B
-	            this.throwUnexpectedToken();
-	        }
-	        if (!this.eof()) {
-	            ch = this.source.charCodeAt(this.index);
-	            /* istanbul ignore else */
-	            if (character_1.Character.isIdentifierStart(ch) || character_1.Character.isDecimalDigit(ch)) {
-	                this.throwUnexpectedToken();
-	            }
-	        }
-	        return {
-	            type: 6 /* NumericLiteral */,
-	            value: parseInt(num, 2),
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    Scanner.prototype.scanOctalLiteral = function (prefix, start) {
-	        var num = '';
-	        var octal = false;
-	        if (character_1.Character.isOctalDigit(prefix.charCodeAt(0))) {
-	            octal = true;
-	            num = '0' + this.source[this.index++];
-	        }
-	        else {
-	            ++this.index;
-	        }
-	        while (!this.eof()) {
-	            if (!character_1.Character.isOctalDigit(this.source.charCodeAt(this.index))) {
-	                break;
-	            }
-	            num += this.source[this.index++];
-	        }
-	        if (!octal && num.length === 0) {
-	            // only 0o or 0O
-	            this.throwUnexpectedToken();
-	        }
-	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index)) || character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	            this.throwUnexpectedToken();
-	        }
-	        return {
-	            type: 6 /* NumericLiteral */,
-	            value: parseInt(num, 8),
-	            octal: octal,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    Scanner.prototype.isImplicitOctalLiteral = function () {
-	        // Implicit octal, unless there is a non-octal digit.
-	        // (Annex B.1.1 on Numeric Literals)
-	        for (var i = this.index + 1; i < this.length; ++i) {
-	            var ch = this.source[i];
-	            if (ch === '8' || ch === '9') {
-	                return false;
-	            }
-	            if (!character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
-	                return true;
-	            }
-	        }
-	        return true;
-	    };
-	    Scanner.prototype.scanNumericLiteral = function () {
-	        var start = this.index;
-	        var ch = this.source[start];
-	        assert_1.assert(character_1.Character.isDecimalDigit(ch.charCodeAt(0)) || (ch === '.'), 'Numeric literal must start with a decimal digit or a decimal point');
-	        var num = '';
-	        if (ch !== '.') {
-	            num = this.source[this.index++];
-	            ch = this.source[this.index];
-	            // Hex number starts with '0x'.
-	            // Octal number starts with '0'.
-	            // Octal number in ES6 starts with '0o'.
-	            // Binary number in ES6 starts with '0b'.
-	            if (num === '0') {
-	                if (ch === 'x' || ch === 'X') {
-	                    ++this.index;
-	                    return this.scanHexLiteral(start);
-	                }
-	                if (ch === 'b' || ch === 'B') {
-	                    ++this.index;
-	                    return this.scanBinaryLiteral(start);
-	                }
-	                if (ch === 'o' || ch === 'O') {
-	                    return this.scanOctalLiteral(ch, start);
-	                }
-	                if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
-	                    if (this.isImplicitOctalLiteral()) {
-	                        return this.scanOctalLiteral(ch, start);
-	                    }
-	                }
-	            }
-	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	                num += this.source[this.index++];
-	            }
-	            ch = this.source[this.index];
-	        }
-	        if (ch === '.') {
-	            num += this.source[this.index++];
-	            while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	                num += this.source[this.index++];
-	            }
-	            ch = this.source[this.index];
-	        }
-	        if (ch === 'e' || ch === 'E') {
-	            num += this.source[this.index++];
-	            ch = this.source[this.index];
-	            if (ch === '+' || ch === '-') {
-	                num += this.source[this.index++];
-	            }
-	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	                while (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	                    num += this.source[this.index++];
-	                }
-	            }
-	            else {
-	                this.throwUnexpectedToken();
-	            }
-	        }
-	        if (character_1.Character.isIdentifierStart(this.source.charCodeAt(this.index))) {
-	            this.throwUnexpectedToken();
-	        }
-	        return {
-	            type: 6 /* NumericLiteral */,
-	            value: parseFloat(num),
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-literals-string-literals
-	    Scanner.prototype.scanStringLiteral = function () {
-	        var start = this.index;
-	        var quote = this.source[start];
-	        assert_1.assert((quote === '\'' || quote === '"'), 'String literal must starts with a quote');
-	        ++this.index;
-	        var octal = false;
-	        var str = '';
-	        while (!this.eof()) {
-	            var ch = this.source[this.index++];
-	            if (ch === quote) {
-	                quote = '';
-	                break;
-	            }
-	            else if (ch === '\\') {
-	                ch = this.source[this.index++];
-	                if (!ch || !character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                    switch (ch) {
-	                        case 'u':
-	                            if (this.source[this.index] === '{') {
-	                                ++this.index;
-	                                str += this.scanUnicodeCodePointEscape();
-	                            }
-	                            else {
-	                                var unescaped_1 = this.scanHexEscape(ch);
-	                                if (unescaped_1 === null) {
-	                                    this.throwUnexpectedToken();
-	                                }
-	                                str += unescaped_1;
-	                            }
-	                            break;
-	                        case 'x':
-	                            var unescaped = this.scanHexEscape(ch);
-	                            if (unescaped === null) {
-	                                this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
-	                            }
-	                            str += unescaped;
-	                            break;
-	                        case 'n':
-	                            str += '\n';
-	                            break;
-	                        case 'r':
-	                            str += '\r';
-	                            break;
-	                        case 't':
-	                            str += '\t';
-	                            break;
-	                        case 'b':
-	                            str += '\b';
-	                            break;
-	                        case 'f':
-	                            str += '\f';
-	                            break;
-	                        case 'v':
-	                            str += '\x0B';
-	                            break;
-	                        case '8':
-	                        case '9':
-	                            str += ch;
-	                            this.tolerateUnexpectedToken();
-	                            break;
-	                        default:
-	                            if (ch && character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
-	                                var octToDec = this.octalToDecimal(ch);
-	                                octal = octToDec.octal || octal;
-	                                str += String.fromCharCode(octToDec.code);
-	                            }
-	                            else {
-	                                str += ch;
-	                            }
-	                            break;
-	                    }
-	                }
-	                else {
-	                    ++this.lineNumber;
-	                    if (ch === '\r' && this.source[this.index] === '\n') {
-	                        ++this.index;
-	                    }
-	                    this.lineStart = this.index;
-	                }
-	            }
-	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                break;
-	            }
-	            else {
-	                str += ch;
-	            }
-	        }
-	        if (quote !== '') {
-	            this.index = start;
-	            this.throwUnexpectedToken();
-	        }
-	        return {
-	            type: 8 /* StringLiteral */,
-	            value: str,
-	            octal: octal,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-template-literal-lexical-components
-	    Scanner.prototype.scanTemplate = function () {
-	        var cooked = '';
-	        var terminated = false;
-	        var start = this.index;
-	        var head = (this.source[start] === '`');
-	        var tail = false;
-	        var rawOffset = 2;
-	        ++this.index;
-	        while (!this.eof()) {
-	            var ch = this.source[this.index++];
-	            if (ch === '`') {
-	                rawOffset = 1;
-	                tail = true;
-	                terminated = true;
-	                break;
-	            }
-	            else if (ch === '$') {
-	                if (this.source[this.index] === '{') {
-	                    this.curlyStack.push('${');
-	                    ++this.index;
-	                    terminated = true;
-	                    break;
-	                }
-	                cooked += ch;
-	            }
-	            else if (ch === '\\') {
-	                ch = this.source[this.index++];
-	                if (!character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                    switch (ch) {
-	                        case 'n':
-	                            cooked += '\n';
-	                            break;
-	                        case 'r':
-	                            cooked += '\r';
-	                            break;
-	                        case 't':
-	                            cooked += '\t';
-	                            break;
-	                        case 'u':
-	                            if (this.source[this.index] === '{') {
-	                                ++this.index;
-	                                cooked += this.scanUnicodeCodePointEscape();
-	                            }
-	                            else {
-	                                var restore = this.index;
-	                                var unescaped_2 = this.scanHexEscape(ch);
-	                                if (unescaped_2 !== null) {
-	                                    cooked += unescaped_2;
-	                                }
-	                                else {
-	                                    this.index = restore;
-	                                    cooked += ch;
-	                                }
-	                            }
-	                            break;
-	                        case 'x':
-	                            var unescaped = this.scanHexEscape(ch);
-	                            if (unescaped === null) {
-	                                this.throwUnexpectedToken(messages_1.Messages.InvalidHexEscapeSequence);
-	                            }
-	                            cooked += unescaped;
-	                            break;
-	                        case 'b':
-	                            cooked += '\b';
-	                            break;
-	                        case 'f':
-	                            cooked += '\f';
-	                            break;
-	                        case 'v':
-	                            cooked += '\v';
-	                            break;
-	                        default:
-	                            if (ch === '0') {
-	                                if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index))) {
-	                                    // Illegal: \01 \02 and so on
-	                                    this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
-	                                }
-	                                cooked += '\0';
-	                            }
-	                            else if (character_1.Character.isOctalDigit(ch.charCodeAt(0))) {
-	                                // Illegal: \1 \2
-	                                this.throwUnexpectedToken(messages_1.Messages.TemplateOctalLiteral);
-	                            }
-	                            else {
-	                                cooked += ch;
-	                            }
-	                            break;
-	                    }
-	                }
-	                else {
-	                    ++this.lineNumber;
-	                    if (ch === '\r' && this.source[this.index] === '\n') {
-	                        ++this.index;
-	                    }
-	                    this.lineStart = this.index;
-	                }
-	            }
-	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                ++this.lineNumber;
-	                if (ch === '\r' && this.source[this.index] === '\n') {
-	                    ++this.index;
-	                }
-	                this.lineStart = this.index;
-	                cooked += '\n';
-	            }
-	            else {
-	                cooked += ch;
-	            }
-	        }
-	        if (!terminated) {
-	            this.throwUnexpectedToken();
-	        }
-	        if (!head) {
-	            this.curlyStack.pop();
-	        }
-	        return {
-	            type: 10 /* Template */,
-	            value: this.source.slice(start + 1, this.index - rawOffset),
-	            cooked: cooked,
-	            head: head,
-	            tail: tail,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
-	    Scanner.prototype.testRegExp = function (pattern, flags) {
-	        // The BMP character to use as a replacement for astral symbols when
-	        // translating an ES6 "u"-flagged pattern to an ES5-compatible
-	        // approximation.
-	        // Note: replacing with '\uFFFF' enables false positives in unlikely
-	        // scenarios. For example, `[\u{1044f}-\u{10440}]` is an invalid
-	        // pattern that would not be detected by this substitution.
-	        var astralSubstitute = '\uFFFF';
-	        var tmp = pattern;
-	        var self = this;
-	        if (flags.indexOf('u') >= 0) {
-	            tmp = tmp
-	                .replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g, function ($0, $1, $2) {
-	                var codePoint = parseInt($1 || $2, 16);
-	                if (codePoint > 0x10FFFF) {
-	                    self.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
-	                }
-	                if (codePoint <= 0xFFFF) {
-	                    return String.fromCharCode(codePoint);
-	                }
-	                return astralSubstitute;
-	            })
-	                .replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g, astralSubstitute);
-	        }
-	        // First, detect invalid regular expressions.
-	        try {
-	            RegExp(tmp);
-	        }
-	        catch (e) {
-	            this.throwUnexpectedToken(messages_1.Messages.InvalidRegExp);
-	        }
-	        // Return a regular expression object for this pattern-flag pair, or
-	        // `null` in case the current environment doesn't support the flags it
-	        // uses.
-	        try {
-	            return new RegExp(pattern, flags);
-	        }
-	        catch (exception) {
-	            /* istanbul ignore next */
-	            return null;
-	        }
-	    };
-	    Scanner.prototype.scanRegExpBody = function () {
-	        var ch = this.source[this.index];
-	        assert_1.assert(ch === '/', 'Regular expression literal must start with a slash');
-	        var str = this.source[this.index++];
-	        var classMarker = false;
-	        var terminated = false;
-	        while (!this.eof()) {
-	            ch = this.source[this.index++];
-	            str += ch;
-	            if (ch === '\\') {
-	                ch = this.source[this.index++];
-	                // https://tc39.github.io/ecma262/#sec-literals-regular-expression-literals
-	                if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                    this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
-	                }
-	                str += ch;
-	            }
-	            else if (character_1.Character.isLineTerminator(ch.charCodeAt(0))) {
-	                this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
-	            }
-	            else if (classMarker) {
-	                if (ch === ']') {
-	                    classMarker = false;
-	                }
-	            }
-	            else {
-	                if (ch === '/') {
-	                    terminated = true;
-	                    break;
-	                }
-	                else if (ch === '[') {
-	                    classMarker = true;
-	                }
-	            }
-	        }
-	        if (!terminated) {
-	            this.throwUnexpectedToken(messages_1.Messages.UnterminatedRegExp);
-	        }
-	        // Exclude leading and trailing slash.
-	        return str.substr(1, str.length - 2);
-	    };
-	    Scanner.prototype.scanRegExpFlags = function () {
-	        var str = '';
-	        var flags = '';
-	        while (!this.eof()) {
-	            var ch = this.source[this.index];
-	            if (!character_1.Character.isIdentifierPart(ch.charCodeAt(0))) {
-	                break;
-	            }
-	            ++this.index;
-	            if (ch === '\\' && !this.eof()) {
-	                ch = this.source[this.index];
-	                if (ch === 'u') {
-	                    ++this.index;
-	                    var restore = this.index;
-	                    var char = this.scanHexEscape('u');
-	                    if (char !== null) {
-	                        flags += char;
-	                        for (str += '\\u'; restore < this.index; ++restore) {
-	                            str += this.source[restore];
-	                        }
-	                    }
-	                    else {
-	                        this.index = restore;
-	                        flags += 'u';
-	                        str += '\\u';
-	                    }
-	                    this.tolerateUnexpectedToken();
-	                }
-	                else {
-	                    str += '\\';
-	                    this.tolerateUnexpectedToken();
-	                }
-	            }
-	            else {
-	                flags += ch;
-	                str += ch;
-	            }
-	        }
-	        return flags;
-	    };
-	    Scanner.prototype.scanRegExp = function () {
-	        var start = this.index;
-	        var pattern = this.scanRegExpBody();
-	        var flags = this.scanRegExpFlags();
-	        var value = this.testRegExp(pattern, flags);
-	        return {
-	            type: 9 /* RegularExpression */,
-	            value: '',
-	            pattern: pattern,
-	            flags: flags,
-	            regex: value,
-	            lineNumber: this.lineNumber,
-	            lineStart: this.lineStart,
-	            start: start,
-	            end: this.index
-	        };
-	    };
-	    Scanner.prototype.lex = function () {
-	        if (this.eof()) {
-	            return {
-	                type: 2 /* EOF */,
-	                value: '',
-	                lineNumber: this.lineNumber,
-	                lineStart: this.lineStart,
-	                start: this.index,
-	                end: this.index
-	            };
-	        }
-	        var cp = this.source.charCodeAt(this.index);
-	        if (character_1.Character.isIdentifierStart(cp)) {
-	            return this.scanIdentifier();
-	        }
-	        // Very common: ( and ) and ;
-	        if (cp === 0x28 || cp === 0x29 || cp === 0x3B) {
-	            return this.scanPunctuator();
-	        }
-	        // String literal starts with single quote (U+0027) or double quote (U+0022).
-	        if (cp === 0x27 || cp === 0x22) {
-	            return this.scanStringLiteral();
-	        }
-	        // Dot (.) U+002E can also start a floating-point number, hence the need
-	        // to check the next character.
-	        if (cp === 0x2E) {
-	            if (character_1.Character.isDecimalDigit(this.source.charCodeAt(this.index + 1))) {
-	                return this.scanNumericLiteral();
-	            }
-	            return this.scanPunctuator();
-	        }
-	        if (character_1.Character.isDecimalDigit(cp)) {
-	            return this.scanNumericLiteral();
-	        }
-	        // Template literals start with ` (U+0060) for template head
-	        // or } (U+007D) for template middle or template tail.
-	        if (cp === 0x60 || (cp === 0x7D && this.curlyStack[this.curlyStack.length - 1] === '${')) {
-	            return this.scanTemplate();
-	        }
-	        // Possible identifier start in a surrogate pair.
-	        if (cp >= 0xD800 && cp < 0xDFFF) {
-	            if (character_1.Character.isIdentifierStart(this.codePointAt(this.index))) {
-	                return this.scanIdentifier();
-	            }
-	        }
-	        return this.scanPunctuator();
-	    };
-	    return Scanner;
-	}());
-	exports.Scanner = Scanner;
-
-
-/***/ },
-/* 13 */
-/***/ function(module, exports) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	exports.TokenName = {};
-	exports.TokenName[1 /* BooleanLiteral */] = 'Boolean';
-	exports.TokenName[2 /* EOF */] = '<end>';
-	exports.TokenName[3 /* Identifier */] = 'Identifier';
-	exports.TokenName[4 /* Keyword */] = 'Keyword';
-	exports.TokenName[5 /* NullLiteral */] = 'Null';
-	exports.TokenName[6 /* NumericLiteral */] = 'Numeric';
-	exports.TokenName[7 /* Punctuator */] = 'Punctuator';
-	exports.TokenName[8 /* StringLiteral */] = 'String';
-	exports.TokenName[9 /* RegularExpression */] = 'RegularExpression';
-	exports.TokenName[10 /* Template */] = 'Template';
-
-
-/***/ },
-/* 14 */
-/***/ function(module, exports) {
-
-	"use strict";
-	// Generated by generate-xhtml-entities.js. DO NOT MODIFY!
-	Object.defineProperty(exports, "__esModule", { value: true });
-	exports.XHTMLEntities = {
-	    quot: '\u0022',
-	    amp: '\u0026',
-	    apos: '\u0027',
-	    gt: '\u003E',
-	    nbsp: '\u00A0',
-	    iexcl: '\u00A1',
-	    cent: '\u00A2',
-	    pound: '\u00A3',
-	    curren: '\u00A4',
-	    yen: '\u00A5',
-	    brvbar: '\u00A6',
-	    sect: '\u00A7',
-	    uml: '\u00A8',
-	    copy: '\u00A9',
-	    ordf: '\u00AA',
-	    laquo: '\u00AB',
-	    not: '\u00AC',
-	    shy: '\u00AD',
-	    reg: '\u00AE',
-	    macr: '\u00AF',
-	    deg: '\u00B0',
-	    plusmn: '\u00B1',
-	    sup2: '\u00B2',
-	    sup3: '\u00B3',
-	    acute: '\u00B4',
-	    micro: '\u00B5',
-	    para: '\u00B6',
-	    middot: '\u00B7',
-	    cedil: '\u00B8',
-	    sup1: '\u00B9',
-	    ordm: '\u00BA',
-	    raquo: '\u00BB',
-	    frac14: '\u00BC',
-	    frac12: '\u00BD',
-	    frac34: '\u00BE',
-	    iquest: '\u00BF',
-	    Agrave: '\u00C0',
-	    Aacute: '\u00C1',
-	    Acirc: '\u00C2',
-	    Atilde: '\u00C3',
-	    Auml: '\u00C4',
-	    Aring: '\u00C5',
-	    AElig: '\u00C6',
-	    Ccedil: '\u00C7',
-	    Egrave: '\u00C8',
-	    Eacute: '\u00C9',
-	    Ecirc: '\u00CA',
-	    Euml: '\u00CB',
-	    Igrave: '\u00CC',
-	    Iacute: '\u00CD',
-	    Icirc: '\u00CE',
-	    Iuml: '\u00CF',
-	    ETH: '\u00D0',
-	    Ntilde: '\u00D1',
-	    Ograve: '\u00D2',
-	    Oacute: '\u00D3',
-	    Ocirc: '\u00D4',
-	    Otilde: '\u00D5',
-	    Ouml: '\u00D6',
-	    times: '\u00D7',
-	    Oslash: '\u00D8',
-	    Ugrave: '\u00D9',
-	    Uacute: '\u00DA',
-	    Ucirc: '\u00DB',
-	    Uuml: '\u00DC',
-	    Yacute: '\u00DD',
-	    THORN: '\u00DE',
-	    szlig: '\u00DF',
-	    agrave: '\u00E0',
-	    aacute: '\u00E1',
-	    acirc: '\u00E2',
-	    atilde: '\u00E3',
-	    auml: '\u00E4',
-	    aring: '\u00E5',
-	    aelig: '\u00E6',
-	    ccedil: '\u00E7',
-	    egrave: '\u00E8',
-	    eacute: '\u00E9',
-	    ecirc: '\u00EA',
-	    euml: '\u00EB',
-	    igrave: '\u00EC',
-	    iacute: '\u00ED',
-	    icirc: '\u00EE',
-	    iuml: '\u00EF',
-	    eth: '\u00F0',
-	    ntilde: '\u00F1',
-	    ograve: '\u00F2',
-	    oacute: '\u00F3',
-	    ocirc: '\u00F4',
-	    otilde: '\u00F5',
-	    ouml: '\u00F6',
-	    divide: '\u00F7',
-	    oslash: '\u00F8',
-	    ugrave: '\u00F9',
-	    uacute: '\u00FA',
-	    ucirc: '\u00FB',
-	    uuml: '\u00FC',
-	    yacute: '\u00FD',
-	    thorn: '\u00FE',
-	    yuml: '\u00FF',
-	    OElig: '\u0152',
-	    oelig: '\u0153',
-	    Scaron: '\u0160',
-	    scaron: '\u0161',
-	    Yuml: '\u0178',
-	    fnof: '\u0192',
-	    circ: '\u02C6',
-	    tilde: '\u02DC',
-	    Alpha: '\u0391',
-	    Beta: '\u0392',
-	    Gamma: '\u0393',
-	    Delta: '\u0394',
-	    Epsilon: '\u0395',
-	    Zeta: '\u0396',
-	    Eta: '\u0397',
-	    Theta: '\u0398',
-	    Iota: '\u0399',
-	    Kappa: '\u039A',
-	    Lambda: '\u039B',
-	    Mu: '\u039C',
-	    Nu: '\u039D',
-	    Xi: '\u039E',
-	    Omicron: '\u039F',
-	    Pi: '\u03A0',
-	    Rho: '\u03A1',
-	    Sigma: '\u03A3',
-	    Tau: '\u03A4',
-	    Upsilon: '\u03A5',
-	    Phi: '\u03A6',
-	    Chi: '\u03A7',
-	    Psi: '\u03A8',
-	    Omega: '\u03A9',
-	    alpha: '\u03B1',
-	    beta: '\u03B2',
-	    gamma: '\u03B3',
-	    delta: '\u03B4',
-	    epsilon: '\u03B5',
-	    zeta: '\u03B6',
-	    eta: '\u03B7',
-	    theta: '\u03B8',
-	    iota: '\u03B9',
-	    kappa: '\u03BA',
-	    lambda: '\u03BB',
-	    mu: '\u03BC',
-	    nu: '\u03BD',
-	    xi: '\u03BE',
-	    omicron: '\u03BF',
-	    pi: '\u03C0',
-	    rho: '\u03C1',
-	    sigmaf: '\u03C2',
-	    sigma: '\u03C3',
-	    tau: '\u03C4',
-	    upsilon: '\u03C5',
-	    phi: '\u03C6',
-	    chi: '\u03C7',
-	    psi: '\u03C8',
-	    omega: '\u03C9',
-	    thetasym: '\u03D1',
-	    upsih: '\u03D2',
-	    piv: '\u03D6',
-	    ensp: '\u2002',
-	    emsp: '\u2003',
-	    thinsp: '\u2009',
-	    zwnj: '\u200C',
-	    zwj: '\u200D',
-	    lrm: '\u200E',
-	    rlm: '\u200F',
-	    ndash: '\u2013',
-	    mdash: '\u2014',
-	    lsquo: '\u2018',
-	    rsquo: '\u2019',
-	    sbquo: '\u201A',
-	    ldquo: '\u201C',
-	    rdquo: '\u201D',
-	    bdquo: '\u201E',
-	    dagger: '\u2020',
-	    Dagger: '\u2021',
-	    bull: '\u2022',
-	    hellip: '\u2026',
-	    permil: '\u2030',
-	    prime: '\u2032',
-	    Prime: '\u2033',
-	    lsaquo: '\u2039',
-	    rsaquo: '\u203A',
-	    oline: '\u203E',
-	    frasl: '\u2044',
-	    euro: '\u20AC',
-	    image: '\u2111',
-	    weierp: '\u2118',
-	    real: '\u211C',
-	    trade: '\u2122',
-	    alefsym: '\u2135',
-	    larr: '\u2190',
-	    uarr: '\u2191',
-	    rarr: '\u2192',
-	    darr: '\u2193',
-	    harr: '\u2194',
-	    crarr: '\u21B5',
-	    lArr: '\u21D0',
-	    uArr: '\u21D1',
-	    rArr: '\u21D2',
-	    dArr: '\u21D3',
-	    hArr: '\u21D4',
-	    forall: '\u2200',
-	    part: '\u2202',
-	    exist: '\u2203',
-	    empty: '\u2205',
-	    nabla: '\u2207',
-	    isin: '\u2208',
-	    notin: '\u2209',
-	    ni: '\u220B',
-	    prod: '\u220F',
-	    sum: '\u2211',
-	    minus: '\u2212',
-	    lowast: '\u2217',
-	    radic: '\u221A',
-	    prop: '\u221D',
-	    infin: '\u221E',
-	    ang: '\u2220',
-	    and: '\u2227',
-	    or: '\u2228',
-	    cap: '\u2229',
-	    cup: '\u222A',
-	    int: '\u222B',
-	    there4: '\u2234',
-	    sim: '\u223C',
-	    cong: '\u2245',
-	    asymp: '\u2248',
-	    ne: '\u2260',
-	    equiv: '\u2261',
-	    le: '\u2264',
-	    ge: '\u2265',
-	    sub: '\u2282',
-	    sup: '\u2283',
-	    nsub: '\u2284',
-	    sube: '\u2286',
-	    supe: '\u2287',
-	    oplus: '\u2295',
-	    otimes: '\u2297',
-	    perp: '\u22A5',
-	    sdot: '\u22C5',
-	    lceil: '\u2308',
-	    rceil: '\u2309',
-	    lfloor: '\u230A',
-	    rfloor: '\u230B',
-	    loz: '\u25CA',
-	    spades: '\u2660',
-	    clubs: '\u2663',
-	    hearts: '\u2665',
-	    diams: '\u2666',
-	    lang: '\u27E8',
-	    rang: '\u27E9'
-	};
-
-
-/***/ },
-/* 15 */
-/***/ function(module, exports, __webpack_require__) {
-
-	"use strict";
-	Object.defineProperty(exports, "__esModule", { value: true });
-	var error_handler_1 = __webpack_require__(10);
-	var scanner_1 = __webpack_require__(12);
-	var token_1 = __webpack_require__(13);
-	var Reader = (function () {
-	    function Reader() {
-	        this.values = [];
-	        this.curly = this.paren = -1;
-	    }
-	    // A function following one of those tokens is an expression.
-	    Reader.prototype.beforeFunctionExpression = function (t) {
-	        return ['(', '{', '[', 'in', 'typeof', 'instanceof', 'new',
-	            'return', 'case', 'delete', 'throw', 'void',
-	            // assignment operators
-	            '=', '+=', '-=', '*=', '**=', '/=', '%=', '<<=', '>>=', '>>>=',
-	            '&=', '|=', '^=', ',',
-	            // binary/unary operators
-	            '+', '-', '*', '**', '/', '%', '++', '--', '<<', '>>', '>>>', '&',
-	            '|', '^', '!', '~', '&&', '||', '?', ':', '===', '==', '>=',
-	            '<=', '<', '>', '!=', '!=='].indexOf(t) >= 0;
-	    };
-	    // Determine if forward slash (/) is an operator or part of a regular expression
-	    // https://github.com/mozilla/sweet.js/wiki/design
-	    Reader.prototype.isRegexStart = function () {
-	        var previous = this.values[this.values.length - 1];
-	        var regex = (previous !== null);
-	        switch (previous) {
-	            case 'this':
-	            case ']':
-	                regex = false;
-	                break;
-	            case ')':
-	                var keyword = this.values[this.paren - 1];
-	                regex = (keyword === 'if' || keyword === 'while' || keyword === 'for' || keyword === 'with');
-	                break;
-	            case '}':
-	                // Dividing a function by anything makes little sense,
-	                // but we have to check for that.
-	                regex = false;
-	                if (this.values[this.curly - 3] === 'function') {
-	                    // Anonymous function, e.g. function(){} /42
-	                    var check = this.values[this.curly - 4];
-	                    regex = check ? !this.beforeFunctionExpression(check) : false;
-	                }
-	                else if (this.values[this.curly - 4] === 'function') {
-	                    // Named function, e.g. function f(){} /42/
-	                    var check = this.values[this.curly - 5];
-	                    regex = check ? !this.beforeFunctionExpression(check) : true;
-	                }
-	                break;
-	            default:
-	                break;
-	        }
-	        return regex;
-	    };
-	    Reader.prototype.push = function (token) {
-	        if (token.type === 7 /* Punctuator */ || token.type === 4 /* Keyword */) {
-	            if (token.value === '{') {
-	                this.curly = this.values.length;
-	            }
-	            else if (token.value === '(') {
-	                this.paren = this.values.length;
-	            }
-	            this.values.push(token.value);
-	        }
-	        else {
-	            this.values.push(null);
-	        }
-	    };
-	    return Reader;
-	}());
-	var Tokenizer = (function () {
-	    function Tokenizer(code, config) {
-	        this.errorHandler = new error_handler_1.ErrorHandler();
-	        this.errorHandler.tolerant = config ? (typeof config.tolerant === 'boolean' && config.tolerant) : false;
-	        this.scanner = new scanner_1.Scanner(code, this.errorHandler);
-	        this.scanner.trackComment = config ? (typeof config.comment === 'boolean' && config.comment) : false;
-	        this.trackRange = config ? (typeof config.range === 'boolean' && config.range) : false;
-	        this.trackLoc = config ? (typeof config.loc === 'boolean' && config.loc) : false;
-	        this.buffer = [];
-	        this.reader = new Reader();
-	    }
-	    Tokenizer.prototype.errors = function () {
-	        return this.errorHandler.errors;
-	    };
-	    Tokenizer.prototype.getNextToken = function () {
-	        if (this.buffer.length === 0) {
-	            var comments = this.scanner.scanComments();
-	            if (this.scanner.trackComment) {
-	                for (var i = 0; i < comments.length; ++i) {
-	                    var e = comments[i];
-	                    var value = this.scanner.source.slice(e.slice[0], e.slice[1]);
-	                    var comment = {
-	                        type: e.multiLine ? 'BlockComment' : 'LineComment',
-	                        value: value
-	                    };
-	                    if (this.trackRange) {
-	                        comment.range = e.range;
-	                    }
-	                    if (this.trackLoc) {
-	                        comment.loc = e.loc;
-	                    }
-	                    this.buffer.push(comment);
-	                }
-	            }
-	            if (!this.scanner.eof()) {
-	                var loc = void 0;
-	                if (this.trackLoc) {
-	                    loc = {
-	                        start: {
-	                            line: this.scanner.lineNumber,
-	                            column: this.scanner.index - this.scanner.lineStart
-	                        },
-	                        end: {}
-	                    };
-	                }
-	                var startRegex = (this.scanner.source[this.scanner.index] === '/') && this.reader.isRegexStart();
-	                var token = startRegex ? this.scanner.scanRegExp() : this.scanner.lex();
-	                this.reader.push(token);
-	                var entry = {
-	                    type: token_1.TokenName[token.type],
-	                    value: this.scanner.source.slice(token.start, token.end)
-	                };
-	                if (this.trackRange) {
-	                    entry.range = [token.start, token.end];
-	                }
-	                if (this.trackLoc) {
-	                    loc.end = {
-	                        line: this.scanner.lineNumber,
-	                        column: this.scanner.index - this.scanner.lineStart
-	                    };
-	                    entry.loc = loc;
-	                }
-	                if (token.type === 9 /* RegularExpression */) {
-	                    var pattern = token.pattern;
-	                    var flags = token.flags;
-	                    entry.regex = { pattern: pattern, flags: flags };
-	                }
-	                this.buffer.push(entry);
-	            }
-	        }
-	        return this.buffer.shift();
-	    };
-	    return Tokenizer;
-	}());
-	exports.Tokenizer = Tokenizer;
-
-
-/***/ }
-/******/ ])
-});
-;
-
-/***/ }),
-/* 269 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var hasOwn = Object.prototype.hasOwnProperty;
-var toStr = Object.prototype.toString;
-var defineProperty = Object.defineProperty;
-var gOPD = Object.getOwnPropertyDescriptor;
-
-var isArray = function isArray(arr) {
-	if (typeof Array.isArray === 'function') {
-		return Array.isArray(arr);
-	}
-
-	return toStr.call(arr) === '[object Array]';
-};
-
-var isPlainObject = function isPlainObject(obj) {
-	if (!obj || toStr.call(obj) !== '[object Object]') {
-		return false;
-	}
-
-	var hasOwnConstructor = hasOwn.call(obj, 'constructor');
-	var hasIsPrototypeOf = obj.constructor && obj.constructor.prototype && hasOwn.call(obj.constructor.prototype, 'isPrototypeOf');
-	// Not own constructor property must be Object
-	if (obj.constructor && !hasOwnConstructor && !hasIsPrototypeOf) {
-		return false;
-	}
-
-	// Own properties are enumerated firstly, so to speed up,
-	// if last one is own, then all properties are own.
-	var key;
-	for (key in obj) { /**/ }
-
-	return typeof key === 'undefined' || hasOwn.call(obj, key);
-};
-
-// If name is '__proto__', and Object.defineProperty is available, define __proto__ as an own property on target
-var setProperty = function setProperty(target, options) {
-	if (defineProperty && options.name === '__proto__') {
-		defineProperty(target, options.name, {
-			enumerable: true,
-			configurable: true,
-			value: options.newValue,
-			writable: true
-		});
-	} else {
-		target[options.name] = options.newValue;
-	}
-};
-
-// Return undefined instead of __proto__ if '__proto__' is not an own property
-var getProperty = function getProperty(obj, name) {
-	if (name === '__proto__') {
-		if (!hasOwn.call(obj, name)) {
-			return void 0;
-		} else if (gOPD) {
-			// In early versions of node, obj['__proto__'] is buggy when obj has
-			// __proto__ as an own property. Object.getOwnPropertyDescriptor() works.
-			return gOPD(obj, name).value;
-		}
-	}
-
-	return obj[name];
-};
-
-module.exports = function extend() {
-	var options, name, src, copy, copyIsArray, clone;
-	var target = arguments[0];
-	var i = 1;
-	var length = arguments.length;
-	var deep = false;
-
-	// Handle a deep copy situation
-	if (typeof target === 'boolean') {
-		deep = target;
-		target = arguments[1] || {};
-		// skip the boolean and the target
-		i = 2;
-	}
-	if (target == null || (typeof target !== 'object' && typeof target !== 'function')) {
-		target = {};
-	}
-
-	for (; i < length; ++i) {
-		options = arguments[i];
-		// Only deal with non-null/undefined values
-		if (options != null) {
-			// Extend the base object
-			for (name in options) {
-				src = getProperty(target, name);
-				copy = getProperty(options, name);
-
-				// Prevent never-ending loop
-				if (target !== copy) {
-					// Recurse if we're merging plain objects or arrays
-					if (deep && copy && (isPlainObject(copy) || (copyIsArray = isArray(copy)))) {
-						if (copyIsArray) {
-							copyIsArray = false;
-							clone = src && isArray(src) ? src : [];
-						} else {
-							clone = src && isPlainObject(src) ? src : {};
-						}
-
-						// Never move original objects, clone them
-						setProperty(target, { name: name, newValue: extend(deep, clone, copy) });
-
-					// Don't bring in undefined values
-					} else if (typeof copy !== 'undefined') {
-						setProperty(target, { name: name, newValue: copy });
-					}
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-
-/***/ }),
-/* 270 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const escapeStringRegexp = __webpack_require__(388);
-
-const platform = process.platform;
-
-const main = {
-	tick: '✔',
-	cross: '✖',
-	star: '★',
-	square: '▇',
-	squareSmall: '◻',
-	squareSmallFilled: '◼',
-	play: '▶',
-	circle: '◯',
-	circleFilled: '◉',
-	circleDotted: '◌',
-	circleDouble: '◎',
-	circleCircle: 'ⓞ',
-	circleCross: 'ⓧ',
-	circlePipe: 'Ⓘ',
-	circleQuestionMark: '?⃝',
-	bullet: '●',
-	dot: '․',
-	line: '─',
-	ellipsis: '…',
-	pointer: '❯',
-	pointerSmall: '›',
-	info: 'ℹ',
-	warning: '⚠',
-	hamburger: '☰',
-	smiley: '㋡',
-	mustache: '෴',
-	heart: '♥',
-	arrowUp: '↑',
-	arrowDown: '↓',
-	arrowLeft: '←',
-	arrowRight: '→',
-	radioOn: '◉',
-	radioOff: '◯',
-	checkboxOn: '☒',
-	checkboxOff: '☐',
-	checkboxCircleOn: 'ⓧ',
-	checkboxCircleOff: 'Ⓘ',
-	questionMarkPrefix: '?⃝',
-	oneHalf: '½',
-	oneThird: '⅓',
-	oneQuarter: '¼',
-	oneFifth: '⅕',
-	oneSixth: '⅙',
-	oneSeventh: '⅐',
-	oneEighth: '⅛',
-	oneNinth: '⅑',
-	oneTenth: '⅒',
-	twoThirds: '⅔',
-	twoFifths: '⅖',
-	threeQuarters: '¾',
-	threeFifths: '⅗',
-	threeEighths: '⅜',
-	fourFifths: '⅘',
-	fiveSixths: '⅚',
-	fiveEighths: '⅝',
-	sevenEighths: '⅞'
-};
-
-const win = {
-	tick: '√',
-	cross: '×',
-	star: '*',
-	square: '█',
-	squareSmall: '[ ]',
-	squareSmallFilled: '[█]',
-	play: '►',
-	circle: '( )',
-	circleFilled: '(*)',
-	circleDotted: '( )',
-	circleDouble: '( )',
-	circleCircle: '(○)',
-	circleCross: '(×)',
-	circlePipe: '(│)',
-	circleQuestionMark: '(?)',
-	bullet: '*',
-	dot: '.',
-	line: '─',
-	ellipsis: '...',
-	pointer: '>',
-	pointerSmall: '»',
-	info: 'i',
-	warning: '‼',
-	hamburger: '≡',
-	smiley: '☺',
-	mustache: '┌─┐',
-	heart: main.heart,
-	arrowUp: main.arrowUp,
-	arrowDown: main.arrowDown,
-	arrowLeft: main.arrowLeft,
-	arrowRight: main.arrowRight,
-	radioOn: '(*)',
-	radioOff: '( )',
-	checkboxOn: '[×]',
-	checkboxOff: '[ ]',
-	checkboxCircleOn: '(×)',
-	checkboxCircleOff: '( )',
-	questionMarkPrefix: '？',
-	oneHalf: '1/2',
-	oneThird: '1/3',
-	oneQuarter: '1/4',
-	oneFifth: '1/5',
-	oneSixth: '1/6',
-	oneSeventh: '1/7',
-	oneEighth: '1/8',
-	oneNinth: '1/9',
-	oneTenth: '1/10',
-	twoThirds: '2/3',
-	twoFifths: '2/5',
-	threeQuarters: '3/4',
-	threeFifths: '3/5',
-	threeEighths: '3/8',
-	fourFifths: '4/5',
-	fiveSixths: '5/6',
-	fiveEighths: '5/8',
-	sevenEighths: '7/8'
-};
-
-if (platform === 'linux') {
-	// the main one doesn't look that good on Ubuntu
-	main.questionMarkPrefix = '?';
-}
-
-const figures = platform === 'win32' ? win : main;
-
-const fn = str => {
-	if (figures === main) {
-		return str;
-	}
-
-	Object.keys(main).forEach(key => {
-		if (main[key] === figures[key]) {
-			return;
-		}
-
-		str = str.replace(new RegExp(escapeStringRegexp(main[key]), 'g'), figures[key]);
-	});
-
-	return str;
-};
-
-module.exports = Object.assign(fn, figures);
-
-
-/***/ }),
-/* 271 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-var pathModule = __webpack_require__(0);
-var isWindows = process.platform === 'win32';
-var fs = __webpack_require__(5);
-
-// JavaScript implementation of realpath, ported from node pre-v6
-
-var DEBUG = process.env.NODE_DEBUG && /fs/.test(process.env.NODE_DEBUG);
-
-function rethrow() {
-  // Only enable in debug mode. A backtrace uses ~1000 bytes of heap space and
-  // is fairly slow to generate.
-  var callback;
-  if (DEBUG) {
-    var backtrace = new Error;
-    callback = debugCallback;
-  } else
-    callback = missingCallback;
-
-  return callback;
-
-  function debugCallback(err) {
-    if (err) {
-      backtrace.message = err.message;
-      err = backtrace;
-      missingCallback(err);
-    }
-  }
-
-  function missingCallback(err) {
-    if (err) {
-      if (process.throwDeprecation)
-        throw err;  // Forgot a callback but don't know where? Use NODE_DEBUG=fs
-      else if (!process.noDeprecation) {
-        var msg = 'fs: missing callback ' + (err.stack || err.message);
-        if (process.traceDeprecation)
-          console.trace(msg);
-        else
-          console.error(msg);
-      }
-    }
-  }
-}
-
-function maybeCallback(cb) {
-  return typeof cb === 'function' ? cb : rethrow();
-}
-
-var normalize = pathModule.normalize;
-
-// Regexp that finds the next partion of a (partial) path
-// result is [base_with_slash, base], e.g. ['somedir/', 'somedir']
-if (isWindows) {
-  var nextPartRe = /(.*?)(?:[\/\\]+|$)/g;
-} else {
-  var nextPartRe = /(.*?)(?:[\/]+|$)/g;
-}
-
-// Regex to find the device root, including trailing slash. E.g. 'c:\\'.
-if (isWindows) {
-  var splitRootRe = /^(?:[a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/][^\\\/]+)?[\\\/]*/;
-} else {
-  var splitRootRe = /^[\/]*/;
-}
-
-exports.realpathSync = function realpathSync(p, cache) {
-  // make p is absolute
-  p = pathModule.resolve(p);
-
-  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
-    return cache[p];
-  }
-
-  var original = p,
-      seenLinks = {},
-      knownHard = {};
-
-  // current character position in p
-  var pos;
-  // the partial path so far, including a trailing slash if any
-  var current;
-  // the partial path without a trailing slash (except when pointing at a root)
-  var base;
-  // the partial path scanned in the previous round, with slash
-  var previous;
-
-  start();
-
-  function start() {
-    // Skip over roots
-    var m = splitRootRe.exec(p);
-    pos = m[0].length;
-    current = m[0];
-    base = m[0];
-    previous = '';
-
-    // On windows, check that the root exists. On unix there is no need.
-    if (isWindows && !knownHard[base]) {
-      fs.lstatSync(base);
-      knownHard[base] = true;
-    }
-  }
-
-  // walk down the path, swapping out linked pathparts for their real
-  // values
-  // NB: p.length changes.
-  while (pos < p.length) {
-    // find the next part
-    nextPartRe.lastIndex = pos;
-    var result = nextPartRe.exec(p);
-    previous = current;
-    current += result[0];
-    base = previous + result[1];
-    pos = nextPartRe.lastIndex;
-
-    // continue if not a symlink
-    if (knownHard[base] || (cache && cache[base] === base)) {
-      continue;
-    }
-
-    var resolvedLink;
-    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
-      // some known symbolic link.  no need to stat again.
-      resolvedLink = cache[base];
-    } else {
-      var stat = fs.lstatSync(base);
-      if (!stat.isSymbolicLink()) {
-        knownHard[base] = true;
-        if (cache) cache[base] = base;
-        continue;
-      }
-
-      // read the link if it wasn't read before
-      // dev/ino always return 0 on windows, so skip the check.
-      var linkTarget = null;
-      if (!isWindows) {
-        var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
-        if (seenLinks.hasOwnProperty(id)) {
-          linkTarget = seenLinks[id];
-        }
-      }
-      if (linkTarget === null) {
-        fs.statSync(base);
-        linkTarget = fs.readlinkSync(base);
-      }
-      resolvedLink = pathModule.resolve(previous, linkTarget);
-      // track this, if given a cache.
-      if (cache) cache[base] = resolvedLink;
-      if (!isWindows) seenLinks[id] = linkTarget;
-    }
-
-    // resolve the link, then start over
-    p = pathModule.resolve(resolvedLink, p.slice(pos));
-    start();
-  }
-
-  if (cache) cache[original] = p;
-
-  return p;
-};
-
-
-exports.realpath = function realpath(p, cache, cb) {
-  if (typeof cb !== 'function') {
-    cb = maybeCallback(cache);
-    cache = null;
-  }
-
-  // make p is absolute
-  p = pathModule.resolve(p);
-
-  if (cache && Object.prototype.hasOwnProperty.call(cache, p)) {
-    return process.nextTick(cb.bind(null, null, cache[p]));
-  }
-
-  var original = p,
-      seenLinks = {},
-      knownHard = {};
-
-  // current character position in p
-  var pos;
-  // the partial path so far, including a trailing slash if any
-  var current;
-  // the partial path without a trailing slash (except when pointing at a root)
-  var base;
-  // the partial path scanned in the previous round, with slash
-  var previous;
-
-  start();
-
-  function start() {
-    // Skip over roots
-    var m = splitRootRe.exec(p);
-    pos = m[0].length;
-    current = m[0];
-    base = m[0];
-    previous = '';
-
-    // On windows, check that the root exists. On unix there is no need.
-    if (isWindows && !knownHard[base]) {
-      fs.lstat(base, function(err) {
-        if (err) return cb(err);
-        knownHard[base] = true;
-        LOOP();
-      });
-    } else {
-      process.nextTick(LOOP);
-    }
-  }
-
-  // walk down the path, swapping out linked pathparts for their real
-  // values
-  function LOOP() {
-    // stop if scanned past end of path
-    if (pos >= p.length) {
-      if (cache) cache[original] = p;
-      return cb(null, p);
-    }
-
-    // find the next part
-    nextPartRe.lastIndex = pos;
-    var result = nextPartRe.exec(p);
-    previous = current;
-    current += result[0];
-    base = previous + result[1];
-    pos = nextPartRe.lastIndex;
-
-    // continue if not a symlink
-    if (knownHard[base] || (cache && cache[base] === base)) {
-      return process.nextTick(LOOP);
-    }
-
-    if (cache && Object.prototype.hasOwnProperty.call(cache, base)) {
-      // known symbolic link.  no need to stat again.
-      return gotResolvedLink(cache[base]);
-    }
-
-    return fs.lstat(base, gotStat);
-  }
-
-  function gotStat(err, stat) {
-    if (err) return cb(err);
-
-    // if not a symlink, skip to the next path part
-    if (!stat.isSymbolicLink()) {
-      knownHard[base] = true;
-      if (cache) cache[base] = base;
-      return process.nextTick(LOOP);
-    }
-
-    // stat & read the link if not read before
-    // call gotTarget as soon as the link target is known
-    // dev/ino always return 0 on windows, so skip the check.
-    if (!isWindows) {
-      var id = stat.dev.toString(32) + ':' + stat.ino.toString(32);
-      if (seenLinks.hasOwnProperty(id)) {
-        return gotTarget(null, seenLinks[id], base);
-      }
-    }
-    fs.stat(base, function(err) {
-      if (err) return cb(err);
-
-      fs.readlink(base, function(err, target) {
-        if (!isWindows) seenLinks[id] = target;
-        gotTarget(err, target);
-      });
-    });
-  }
-
-  function gotTarget(err, target, base) {
-    if (err) return cb(err);
-
-    var resolvedLink = pathModule.resolve(previous, target);
-    if (cache) cache[base] = resolvedLink;
-    gotResolvedLink(resolvedLink);
-  }
-
-  function gotResolvedLink(resolvedLink) {
-    // resolve the link, then start over
-    p = pathModule.resolve(resolvedLink, p.slice(pos));
-    start();
-  }
-};
-
-
-/***/ }),
-/* 272 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = globSync
-globSync.GlobSync = GlobSync
-
-var fs = __webpack_require__(5)
-var rp = __webpack_require__(140)
-var minimatch = __webpack_require__(82)
-var Minimatch = minimatch.Minimatch
-var Glob = __webpack_require__(99).Glob
-var util = __webpack_require__(3)
-var path = __webpack_require__(0)
-var assert = __webpack_require__(28)
-var isAbsolute = __webpack_require__(101)
-var common = __webpack_require__(141)
-var alphasort = common.alphasort
-var alphasorti = common.alphasorti
-var setopts = common.setopts
-var ownProp = common.ownProp
-var childrenIgnored = common.childrenIgnored
-var isIgnored = common.isIgnored
-
-function globSync (pattern, options) {
-  if (typeof options === 'function' || arguments.length === 3)
-    throw new TypeError('callback provided to sync glob\n'+
-                        'See: https://github.com/isaacs/node-glob/issues/167')
-
-  return new GlobSync(pattern, options).found
-}
-
-function GlobSync (pattern, options) {
-  if (!pattern)
-    throw new Error('must provide pattern')
-
-  if (typeof options === 'function' || arguments.length === 3)
-    throw new TypeError('callback provided to sync glob\n'+
-                        'See: https://github.com/isaacs/node-glob/issues/167')
-
-  if (!(this instanceof GlobSync))
-    return new GlobSync(pattern, options)
-
-  setopts(this, pattern, options)
-
-  if (this.noprocess)
-    return this
-
-  var n = this.minimatch.set.length
-  this.matches = new Array(n)
-  for (var i = 0; i < n; i ++) {
-    this._process(this.minimatch.set[i], i, false)
-  }
-  this._finish()
-}
-
-GlobSync.prototype._finish = function () {
-  assert(this instanceof GlobSync)
-  if (this.realpath) {
-    var self = this
-    this.matches.forEach(function (matchset, index) {
-      var set = self.matches[index] = Object.create(null)
-      for (var p in matchset) {
-        try {
-          p = self._makeAbs(p)
-          var real = rp.realpathSync(p, self.realpathCache)
-          set[real] = true
-        } catch (er) {
-          if (er.syscall === 'stat')
-            set[self._makeAbs(p)] = true
-          else
-            throw er
-        }
-      }
-    })
-  }
-  common.finish(this)
-}
-
-
-GlobSync.prototype._process = function (pattern, index, inGlobStar) {
-  assert(this instanceof GlobSync)
-
-  // Get the first [n] parts of pattern that are all strings.
-  var n = 0
-  while (typeof pattern[n] === 'string') {
-    n ++
-  }
-  // now n is the index of the first one that is *not* a string.
-
-  // See if there's anything else
-  var prefix
-  switch (n) {
-    // if not, then this is rather simple
-    case pattern.length:
-      this._processSimple(pattern.join('/'), index)
-      return
-
-    case 0:
-      // pattern *starts* with some non-trivial item.
-      // going to readdir(cwd), but not include the prefix in matches.
-      prefix = null
-      break
-
-    default:
-      // pattern has some string bits in the front.
-      // whatever it starts with, whether that's 'absolute' like /foo/bar,
-      // or 'relative' like '../baz'
-      prefix = pattern.slice(0, n).join('/')
-      break
-  }
-
-  var remain = pattern.slice(n)
-
-  // get the list of entries.
-  var read
-  if (prefix === null)
-    read = '.'
-  else if (isAbsolute(prefix) || isAbsolute(pattern.join('/'))) {
-    if (!prefix || !isAbsolute(prefix))
-      prefix = '/' + prefix
-    read = prefix
-  } else
-    read = prefix
-
-  var abs = this._makeAbs(read)
-
-  //if ignored, skip processing
-  if (childrenIgnored(this, read))
-    return
-
-  var isGlobStar = remain[0] === minimatch.GLOBSTAR
-  if (isGlobStar)
-    this._processGlobStar(prefix, read, abs, remain, index, inGlobStar)
-  else
-    this._processReaddir(prefix, read, abs, remain, index, inGlobStar)
-}
-
-
-GlobSync.prototype._processReaddir = function (prefix, read, abs, remain, index, inGlobStar) {
-  var entries = this._readdir(abs, inGlobStar)
-
-  // if the abs isn't a dir, then nothing can match!
-  if (!entries)
-    return
-
-  // It will only match dot entries if it starts with a dot, or if
-  // dot is set.  Stuff like @(.foo|.bar) isn't allowed.
-  var pn = remain[0]
-  var negate = !!this.minimatch.negate
-  var rawGlob = pn._glob
-  var dotOk = this.dot || rawGlob.charAt(0) === '.'
-
-  var matchedEntries = []
-  for (var i = 0; i < entries.length; i++) {
-    var e = entries[i]
-    if (e.charAt(0) !== '.' || dotOk) {
-      var m
-      if (negate && !prefix) {
-        m = !e.match(pn)
-      } else {
-        m = e.match(pn)
-      }
-      if (m)
-        matchedEntries.push(e)
-    }
-  }
-
-  var len = matchedEntries.length
-  // If there are no matched entries, then nothing matches.
-  if (len === 0)
-    return
-
-  // if this is the last remaining pattern bit, then no need for
-  // an additional stat *unless* the user has specified mark or
-  // stat explicitly.  We know they exist, since readdir returned
-  // them.
-
-  if (remain.length === 1 && !this.mark && !this.stat) {
-    if (!this.matches[index])
-      this.matches[index] = Object.create(null)
-
-    for (var i = 0; i < len; i ++) {
-      var e = matchedEntries[i]
-      if (prefix) {
-        if (prefix.slice(-1) !== '/')
-          e = prefix + '/' + e
-        else
-          e = prefix + e
-      }
-
-      if (e.charAt(0) === '/' && !this.nomount) {
-        e = path.join(this.root, e)
-      }
-      this._emitMatch(index, e)
-    }
-    // This was the last one, and no stats were needed
-    return
-  }
-
-  // now test all matched entries as stand-ins for that part
-  // of the pattern.
-  remain.shift()
-  for (var i = 0; i < len; i ++) {
-    var e = matchedEntries[i]
-    var newPattern
-    if (prefix)
-      newPattern = [prefix, e]
-    else
-      newPattern = [e]
-    this._process(newPattern.concat(remain), index, inGlobStar)
-  }
-}
-
-
-GlobSync.prototype._emitMatch = function (index, e) {
-  if (isIgnored(this, e))
-    return
-
-  var abs = this._makeAbs(e)
-
-  if (this.mark)
-    e = this._mark(e)
-
-  if (this.absolute) {
-    e = abs
-  }
-
-  if (this.matches[index][e])
-    return
-
-  if (this.nodir) {
-    var c = this.cache[abs]
-    if (c === 'DIR' || Array.isArray(c))
-      return
-  }
-
-  this.matches[index][e] = true
-
-  if (this.stat)
-    this._stat(e)
-}
-
-
-GlobSync.prototype._readdirInGlobStar = function (abs) {
-  // follow all symlinked directories forever
-  // just proceed as if this is a non-globstar situation
-  if (this.follow)
-    return this._readdir(abs, false)
-
-  var entries
-  var lstat
-  var stat
-  try {
-    lstat = fs.lstatSync(abs)
-  } catch (er) {
-    if (er.code === 'ENOENT') {
-      // lstat failed, doesn't exist
-      return null
-    }
-  }
-
-  var isSym = lstat && lstat.isSymbolicLink()
-  this.symlinks[abs] = isSym
-
-  // If it's not a symlink or a dir, then it's definitely a regular file.
-  // don't bother doing a readdir in that case.
-  if (!isSym && lstat && !lstat.isDirectory())
-    this.cache[abs] = 'FILE'
-  else
-    entries = this._readdir(abs, false)
-
-  return entries
-}
-
-GlobSync.prototype._readdir = function (abs, inGlobStar) {
-  var entries
-
-  if (inGlobStar && !ownProp(this.symlinks, abs))
-    return this._readdirInGlobStar(abs)
-
-  if (ownProp(this.cache, abs)) {
-    var c = this.cache[abs]
-    if (!c || c === 'FILE')
-      return null
-
-    if (Array.isArray(c))
-      return c
-  }
-
-  try {
-    return this._readdirEntries(abs, fs.readdirSync(abs))
-  } catch (er) {
-    this._readdirError(abs, er)
-    return null
-  }
-}
-
-GlobSync.prototype._readdirEntries = function (abs, entries) {
-  // if we haven't asked to stat everything, then just
-  // assume that everything in there exists, so we can avoid
-  // having to stat it a second time.
-  if (!this.mark && !this.stat) {
-    for (var i = 0; i < entries.length; i ++) {
-      var e = entries[i]
-      if (abs === '/')
-        e = abs + e
-      else
-        e = abs + '/' + e
-      this.cache[e] = true
-    }
-  }
-
-  this.cache[abs] = entries
-
-  // mark and cache dir-ness
-  return entries
-}
-
-GlobSync.prototype._readdirError = function (f, er) {
-  // handle errors, and cache the information
-  switch (er.code) {
-    case 'ENOTSUP': // https://github.com/isaacs/node-glob/issues/205
-    case 'ENOTDIR': // totally normal. means it *does* exist.
-      var abs = this._makeAbs(f)
-      this.cache[abs] = 'FILE'
-      if (abs === this.cwdAbs) {
-        var error = new Error(er.code + ' invalid cwd ' + this.cwd)
-        error.path = this.cwd
-        error.code = er.code
-        throw error
-      }
-      break
-
-    case 'ENOENT': // not terribly unusual
-    case 'ELOOP':
-    case 'ENAMETOOLONG':
-    case 'UNKNOWN':
-      this.cache[this._makeAbs(f)] = false
-      break
-
-    default: // some unusual error.  Treat as failure.
-      this.cache[this._makeAbs(f)] = false
-      if (this.strict)
-        throw er
-      if (!this.silent)
-        console.error('glob error', er)
-      break
-  }
-}
-
-GlobSync.prototype._processGlobStar = function (prefix, read, abs, remain, index, inGlobStar) {
-
-  var entries = this._readdir(abs, inGlobStar)
-
-  // no entries means not a dir, so it can never have matches
-  // foo.txt/** doesn't match foo.txt
-  if (!entries)
-    return
-
-  // test without the globstar, and with every child both below
-  // and replacing the globstar.
-  var remainWithoutGlobStar = remain.slice(1)
-  var gspref = prefix ? [ prefix ] : []
-  var noGlobStar = gspref.concat(remainWithoutGlobStar)
-
-  // the noGlobStar pattern exits the inGlobStar state
-  this._process(noGlobStar, index, false)
-
-  var len = entries.length
-  var isSym = this.symlinks[abs]
-
-  // If it's a symlink, and we're in a globstar, then stop
-  if (isSym && inGlobStar)
-    return
-
-  for (var i = 0; i < len; i++) {
-    var e = entries[i]
-    if (e.charAt(0) === '.' && !this.dot)
-      continue
-
-    // these two cases enter the inGlobStar state
-    var instead = gspref.concat(entries[i], remainWithoutGlobStar)
-    this._process(instead, index, true)
-
-    var below = gspref.concat(entries[i], remain)
-    this._process(below, index, true)
-  }
-}
-
-GlobSync.prototype._processSimple = function (prefix, index) {
-  // XXX review this.  Shouldn't it be doing the mounting etc
-  // before doing stat?  kinda weird?
-  var exists = this._stat(prefix)
-
-  if (!this.matches[index])
-    this.matches[index] = Object.create(null)
-
-  // If it doesn't exist, then just mark the lack of results
-  if (!exists)
-    return
-
-  if (prefix && isAbsolute(prefix) && !this.nomount) {
-    var trail = /[\/\\]$/.test(prefix)
-    if (prefix.charAt(0) === '/') {
-      prefix = path.join(this.root, prefix)
-    } else {
-      prefix = path.resolve(this.root, prefix)
-      if (trail)
-        prefix += '/'
-    }
-  }
-
-  if (process.platform === 'win32')
-    prefix = prefix.replace(/\\/g, '/')
-
-  // Mark this as a match
-  this._emitMatch(index, prefix)
-}
-
-// Returns either 'DIR', 'FILE', or false
-GlobSync.prototype._stat = function (f) {
-  var abs = this._makeAbs(f)
-  var needDir = f.slice(-1) === '/'
-
-  if (f.length > this.maxLength)
-    return false
-
-  if (!this.stat && ownProp(this.cache, abs)) {
-    var c = this.cache[abs]
-
-    if (Array.isArray(c))
-      c = 'DIR'
-
-    // It exists, but maybe not how we need it
-    if (!needDir || c === 'DIR')
-      return c
-
-    if (needDir && c === 'FILE')
-      return false
-
-    // otherwise we have to stat, because maybe c=true
-    // if we know it exists, but not what it is.
-  }
-
-  var exists
-  var stat = this.statCache[abs]
-  if (!stat) {
-    var lstat
-    try {
-      lstat = fs.lstatSync(abs)
-    } catch (er) {
-      if (er && (er.code === 'ENOENT' || er.code === 'ENOTDIR')) {
-        this.statCache[abs] = false
-        return false
-      }
-    }
-
-    if (lstat && lstat.isSymbolicLink()) {
-      try {
-        stat = fs.statSync(abs)
-      } catch (er) {
-        stat = lstat
-      }
-    } else {
-      stat = lstat
-    }
-  }
-
-  this.statCache[abs] = stat
-
-  var c = true
-  if (stat)
-    c = stat.isDirectory() ? 'DIR' : 'FILE'
-
-  this.cache[abs] = this.cache[abs] || c
-
-  if (needDir && c === 'FILE')
-    return false
-
-  return c
-}
-
-GlobSync.prototype._mark = function (p) {
-  return common.mark(this, p)
-}
-
-GlobSync.prototype._makeAbs = function (f) {
-  return common.makeAbs(this, f)
-}
-
-
-/***/ }),
-/* 273 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function (flag, argv) {
-	argv = argv || process.argv;
-
-	var terminatorPos = argv.indexOf('--');
-	var prefix = /^--/.test(flag) ? '' : '--';
-	var pos = argv.indexOf(prefix + flag);
-
-	return pos !== -1 && (terminatorPos !== -1 ? pos < terminatorPos : true);
-};
-
-
-/***/ }),
-/* 274 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var wrappy = __webpack_require__(161)
-var reqs = Object.create(null)
-var once = __webpack_require__(83)
-
-module.exports = wrappy(inflight)
-
-function inflight (key, cb) {
-  if (reqs[key]) {
-    reqs[key].push(cb)
-    return null
-  } else {
-    reqs[key] = [cb]
-    return makeres(key)
-  }
-}
-
-function makeres (key) {
-  return once(function RES () {
-    var cbs = reqs[key]
-    var len = cbs.length
-    var args = slice(arguments)
-
-    // XXX It's somewhat ambiguous whether a new callback added in this
-    // pass should be queued for later execution if something in the
-    // list of callbacks throws, or if it should just be discarded.
-    // However, it's such an edge case that it hardly matters, and either
-    // choice is likely as surprising as the other.
-    // As it happens, we do go ahead and schedule it for later execution.
-    try {
-      for (var i = 0; i < len; i++) {
-        cbs[i].apply(null, args)
-      }
-    } finally {
-      if (cbs.length > len) {
-        // added more in the interim.
-        // de-zalgo, just in case, but don't call again.
-        cbs.splice(0, len)
-        process.nextTick(function () {
-          RES.apply(null, args)
-        })
-      } else {
-        delete reqs[key]
-      }
-    }
-  })
-}
-
-function slice (args) {
-  var length = args.length
-  var array = []
-
-  for (var i = 0; i < length; i++) array[i] = args[i]
-  return array
-}
-
-
-/***/ }),
-/* 275 */
-/***/ (function(module, exports) {
-
-if (typeof Object.create === 'function') {
-  // implementation from standard node.js 'util' module
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    ctor.prototype = Object.create(superCtor.prototype, {
-      constructor: {
-        value: ctor,
-        enumerable: false,
-        writable: true,
-        configurable: true
-      }
-    });
-  };
-} else {
-  // old school shim for old browsers
-  module.exports = function inherits(ctor, superCtor) {
-    ctor.super_ = superCtor
-    var TempCtor = function () {}
-    TempCtor.prototype = superCtor.prototype
-    ctor.prototype = new TempCtor()
-    ctor.prototype.constructor = ctor
-  }
-}
-
-
-/***/ }),
-/* 276 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * Inquirer.js
- * A collection of common interactive command line user interfaces.
- */
-
-var inquirer = module.exports;
-
-/**
- * Client interfaces
- */
-
-inquirer.prompts = {};
-
-inquirer.Separator = __webpack_require__(175);
-
-inquirer.ui = {
-  BottomBar: __webpack_require__(695),
-  Prompt: __webpack_require__(696)
-};
-
-/**
- * Create a new self-contained prompt module.
- */
-inquirer.createPromptModule = function(opt) {
-  var promptModule = function(questions) {
-    var ui = new inquirer.ui.Prompt(promptModule.prompts, opt);
-    var promise = ui.run(questions);
-
-    // Monkey patch the UI on the promise object so
-    // that it remains publicly accessible.
-    promise.ui = ui;
-
-    return promise;
-  };
-  promptModule.prompts = {};
-
-  /**
-   * Register a prompt type
-   * @param {String} name     Prompt type name
-   * @param {Function} prompt Prompt constructor
-   * @return {inquirer}
-   */
-
-  promptModule.registerPrompt = function(name, prompt) {
-    promptModule.prompts[name] = prompt;
-    return this;
-  };
-
-  /**
-   * Register the defaults provider prompts
-   */
-
-  promptModule.restoreDefaultPrompts = function() {
-    this.registerPrompt('list', __webpack_require__(691));
-    this.registerPrompt('input', __webpack_require__(392));
-    this.registerPrompt('number', __webpack_require__(692));
-    this.registerPrompt('confirm', __webpack_require__(688));
-    this.registerPrompt('rawlist', __webpack_require__(694));
-    this.registerPrompt('expand', __webpack_require__(690));
-    this.registerPrompt('checkbox', __webpack_require__(687));
-    this.registerPrompt('password', __webpack_require__(693));
-    this.registerPrompt('editor', __webpack_require__(689));
-  };
-
-  promptModule.restoreDefaultPrompts();
-
-  return promptModule;
-};
-
-/**
- * Public CLI helper interface
- * @param  {Array|Object|Rx.Observable} questions - Questions settings array
- * @param  {Function} cb - Callback being passed the user answers
- * @return {inquirer.ui.Prompt}
- */
-
-inquirer.prompt = inquirer.createPromptModule();
-
-// Expose helper functions on the top level for easiest usage by common users
-inquirer.registerPrompt = function(name, prompt) {
-  inquirer.prompt.registerPrompt(name, prompt);
-};
-inquirer.restoreDefaultPrompts = function() {
-  inquirer.prompt.restoreDefaultPrompts();
-};
-
-
-/***/ }),
-/* 277 */
-/***/ (function(module, exports) {
-
-module.exports = 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鱽鱾鲀鲃鲄鲉鲊鲌鲏鲓鲖鲗鲘鲙鲝鲪鲬鲯鲹鲾",4,"鳈鳉鳑鳒鳚鳛鳠鳡鳌",4,"鳓鳔鳕鳗鳘鳙鳜鳝鳟鳢靼鞅鞑鞒鞔鞯鞫鞣鞲鞴骱骰骷鹘骶骺骼髁髀髅髂髋髌髑魅魃魇魉魈魍魑飨餍餮饕饔髟髡髦髯髫髻髭髹鬈鬏鬓鬟鬣麽麾縻麂麇麈麋麒鏖麝麟黛黜黝黠黟黢黩黧黥黪黯鼢鼬鼯鼹鼷鼽鼾齄"],["f840","鳣",62],["f880","鴢",32],["f940","鵃",62],["f980","鶂",32],["fa40","鶣",62],["fa80","鷢",32],["fb40","鸃",27,"鸤鸧鸮鸰鸴鸻鸼鹀鹍鹐鹒鹓鹔鹖鹙鹝鹟鹠鹡鹢鹥鹮鹯鹲鹴",9,"麀"],["fb80","麁麃麄麅麆麉麊麌",5,"麔",8,"麞麠",5,"麧麨麩麪"],["fc40","麫",8,"麵麶麷麹麺麼麿",4,"黅黆黇黈黊黋黌黐黒黓黕黖黗黙黚點黡黣黤黦黨黫黬黭黮黰",8,"黺黽黿",6],["fc80","鼆",4,"鼌鼏鼑鼒鼔鼕鼖鼘鼚",5,"鼡鼣",8,"鼭鼮鼰鼱"],["fd40","鼲",4,"鼸鼺鼼鼿",4,"齅",10,"齒",38],["fd80","齹",5,"龁龂龍",11,"龜龝龞龡",4,"郎凉秊裏隣"],["fe40","兀嗀﨎﨏﨑﨓﨔礼﨟蘒﨡﨣﨤﨧﨨﨩"]]
-
-/***/ }),
-/* 278 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// @flow
-
-/*::
-declare var __webpack_require__: mixed;
-*/
-
-module.exports = typeof __webpack_require__ !== "undefined";
-
-
-/***/ }),
-/* 279 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-var yaml = __webpack_require__(280);
-
-
-module.exports = yaml;
-
-
-/***/ }),
-/* 280 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-var loader = __webpack_require__(282);
-var dumper = __webpack_require__(281);
-
-
-function deprecated(name) {
-  return function () {
-    throw new Error('Function ' + name + ' is deprecated and cannot be used.');
-  };
-}
-
-
-module.exports.Type                = __webpack_require__(10);
-module.exports.Schema              = __webpack_require__(44);
-module.exports.FAILSAFE_SCHEMA     = __webpack_require__(100);
-module.exports.JSON_SCHEMA         = __webpack_require__(144);
-module.exports.CORE_SCHEMA         = __webpack_require__(143);
-module.exports.DEFAULT_SAFE_SCHEMA = __webpack_require__(55);
-module.exports.DEFAULT_FULL_SCHEMA = __webpack_require__(73);
-module.exports.load                = loader.load;
-module.exports.loadAll             = loader.loadAll;
-module.exports.safeLoad            = loader.safeLoad;
-module.exports.safeLoadAll         = loader.safeLoadAll;
-module.exports.dump                = dumper.dump;
-module.exports.safeDump            = dumper.safeDump;
-module.exports.YAMLException       = __webpack_require__(54);
-
-// Deprecated schema names from JS-YAML 2.0.x
-module.exports.MINIMAL_SCHEMA = __webpack_require__(100);
-module.exports.SAFE_SCHEMA    = __webpack_require__(55);
-module.exports.DEFAULT_SCHEMA = __webpack_require__(73);
-
-// Deprecated functions from JS-YAML 1.x.x
-module.exports.scan           = deprecated('scan');
-module.exports.parse          = deprecated('parse');
-module.exports.compose        = deprecated('compose');
-module.exports.addConstructor = deprecated('addConstructor');
-
-
-/***/ }),
-/* 281 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/*eslint-disable no-use-before-define*/
-
-var common              = __webpack_require__(43);
-var YAMLException       = __webpack_require__(54);
-var DEFAULT_FULL_SCHEMA = __webpack_require__(73);
-var DEFAULT_SAFE_SCHEMA = __webpack_require__(55);
-
-var _toString       = Object.prototype.toString;
-var _hasOwnProperty = Object.prototype.hasOwnProperty;
-
-var CHAR_TAB                  = 0x09; /* Tab */
-var CHAR_LINE_FEED            = 0x0A; /* LF */
-var CHAR_SPACE                = 0x20; /* Space */
-var CHAR_EXCLAMATION          = 0x21; /* ! */
-var CHAR_DOUBLE_QUOTE         = 0x22; /* " */
-var CHAR_SHARP                = 0x23; /* # */
-var CHAR_PERCENT              = 0x25; /* % */
-var CHAR_AMPERSAND            = 0x26; /* & */
-var CHAR_SINGLE_QUOTE         = 0x27; /* ' */
-var CHAR_ASTERISK             = 0x2A; /* * */
-var CHAR_COMMA                = 0x2C; /* , */
-var CHAR_MINUS                = 0x2D; /* - */
-var CHAR_COLON                = 0x3A; /* : */
-var CHAR_GREATER_THAN         = 0x3E; /* > */
-var CHAR_QUESTION             = 0x3F; /* ? */
-var CHAR_COMMERCIAL_AT        = 0x40; /* @ */
-var CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */
-var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
-var CHAR_GRAVE_ACCENT         = 0x60; /* ` */
-var CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */
-var CHAR_VERTICAL_LINE        = 0x7C; /* | */
-var CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */
-
-var ESCAPE_SEQUENCES = {};
-
-ESCAPE_SEQUENCES[0x00]   = '\\0';
-ESCAPE_SEQUENCES[0x07]   = '\\a';
-ESCAPE_SEQUENCES[0x08]   = '\\b';
-ESCAPE_SEQUENCES[0x09]   = '\\t';
-ESCAPE_SEQUENCES[0x0A]   = '\\n';
-ESCAPE_SEQUENCES[0x0B]   = '\\v';
-ESCAPE_SEQUENCES[0x0C]   = '\\f';
-ESCAPE_SEQUENCES[0x0D]   = '\\r';
-ESCAPE_SEQUENCES[0x1B]   = '\\e';
-ESCAPE_SEQUENCES[0x22]   = '\\"';
-ESCAPE_SEQUENCES[0x5C]   = '\\\\';
-ESCAPE_SEQUENCES[0x85]   = '\\N';
-ESCAPE_SEQUENCES[0xA0]   = '\\_';
-ESCAPE_SEQUENCES[0x2028] = '\\L';
-ESCAPE_SEQUENCES[0x2029] = '\\P';
-
-var DEPRECATED_BOOLEANS_SYNTAX = [
-  'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
-  'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
-];
-
-function compileStyleMap(schema, map) {
-  var result, keys, index, length, tag, style, type;
-
-  if (map === null) return {};
-
-  result = {};
-  keys = Object.keys(map);
-
-  for (index = 0, length = keys.length; index < length; index += 1) {
-    tag = keys[index];
-    style = String(map[tag]);
-
-    if (tag.slice(0, 2) === '!!') {
-      tag = 'tag:yaml.org,2002:' + tag.slice(2);
-    }
-    type = schema.compiledTypeMap['fallback'][tag];
-
-    if (type && _hasOwnProperty.call(type.styleAliases, style)) {
-      style = type.styleAliases[style];
-    }
-
-    result[tag] = style;
-  }
-
-  return result;
-}
-
-function encodeHex(character) {
-  var string, handle, length;
-
-  string = character.toString(16).toUpperCase();
-
-  if (character <= 0xFF) {
-    handle = 'x';
-    length = 2;
-  } else if (character <= 0xFFFF) {
-    handle = 'u';
-    length = 4;
-  } else if (character <= 0xFFFFFFFF) {
-    handle = 'U';
-    length = 8;
-  } else {
-    throw new YAMLException('code point within a string may not be greater than 0xFFFFFFFF');
-  }
-
-  return '\\' + handle + common.repeat('0', length - string.length) + string;
-}
-
-function State(options) {
-  this.schema        = options['schema'] || DEFAULT_FULL_SCHEMA;
-  this.indent        = Math.max(1, (options['indent'] || 2));
-  this.noArrayIndent = options['noArrayIndent'] || false;
-  this.skipInvalid   = options['skipInvalid'] || false;
-  this.flowLevel     = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
-  this.styleMap      = compileStyleMap(this.schema, options['styles'] || null);
-  this.sortKeys      = options['sortKeys'] || false;
-  this.lineWidth     = options['lineWidth'] || 80;
-  this.noRefs        = options['noRefs'] || false;
-  this.noCompatMode  = options['noCompatMode'] || false;
-  this.condenseFlow  = options['condenseFlow'] || false;
-
-  this.implicitTypes = this.schema.compiledImplicit;
-  this.explicitTypes = this.schema.compiledExplicit;
-
-  this.tag = null;
-  this.result = '';
-
-  this.duplicates = [];
-  this.usedDuplicates = null;
-}
-
-// Indents every line in a string. Empty lines (\n only) are not indented.
-function indentString(string, spaces) {
-  var ind = common.repeat(' ', spaces),
-      position = 0,
-      next = -1,
-      result = '',
-      line,
-      length = string.length;
-
-  while (position < length) {
-    next = string.indexOf('\n', position);
-    if (next === -1) {
-      line = string.slice(position);
-      position = length;
-    } else {
-      line = string.slice(position, next + 1);
-      position = next + 1;
-    }
-
-    if (line.length && line !== '\n') result += ind;
-
-    result += line;
-  }
-
-  return result;
-}
-
-function generateNextLine(state, level) {
-  return '\n' + common.repeat(' ', state.indent * level);
-}
-
-function testImplicitResolving(state, str) {
-  var index, length, type;
-
-  for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
-    type = state.implicitTypes[index];
-
-    if (type.resolve(str)) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-// [33] s-white ::= s-space | s-tab
-function isWhitespace(c) {
-  return c === CHAR_SPACE || c === CHAR_TAB;
-}
-
-// Returns true if the character can be printed without escaping.
-// From YAML 1.2: "any allowed characters known to be non-printable
-// should also be escaped. [However,] This isn’t mandatory"
-// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
-function isPrintable(c) {
-  return  (0x00020 <= c && c <= 0x00007E)
-      || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
-      || ((0x0E000 <= c && c <= 0x00FFFD) && c !== 0xFEFF /* BOM */)
-      ||  (0x10000 <= c && c <= 0x10FFFF);
-}
-
-// Simplified test for values allowed after the first character in plain style.
-function isPlainSafe(c) {
-  // Uses a subset of nb-char - c-flow-indicator - ":" - "#"
-  // where nb-char ::= c-printable - b-char - c-byte-order-mark.
-  return isPrintable(c) && c !== 0xFEFF
-    // - c-flow-indicator
-    && c !== CHAR_COMMA
-    && c !== CHAR_LEFT_SQUARE_BRACKET
-    && c !== CHAR_RIGHT_SQUARE_BRACKET
-    && c !== CHAR_LEFT_CURLY_BRACKET
-    && c !== CHAR_RIGHT_CURLY_BRACKET
-    // - ":" - "#"
-    && c !== CHAR_COLON
-    && c !== CHAR_SHARP;
-}
-
-// Simplified test for values allowed as the first character in plain style.
-function isPlainSafeFirst(c) {
-  // Uses a subset of ns-char - c-indicator
-  // where ns-char = nb-char - s-white.
-  return isPrintable(c) && c !== 0xFEFF
-    && !isWhitespace(c) // - s-white
-    // - (c-indicator ::=
-    // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
-    && c !== CHAR_MINUS
-    && c !== CHAR_QUESTION
-    && c !== CHAR_COLON
-    && c !== CHAR_COMMA
-    && c !== CHAR_LEFT_SQUARE_BRACKET
-    && c !== CHAR_RIGHT_SQUARE_BRACKET
-    && c !== CHAR_LEFT_CURLY_BRACKET
-    && c !== CHAR_RIGHT_CURLY_BRACKET
-    // | “#” | “&” | “*” | “!” | “|” | “>” | “'” | “"”
-    && c !== CHAR_SHARP
-    && c !== CHAR_AMPERSAND
-    && c !== CHAR_ASTERISK
-    && c !== CHAR_EXCLAMATION
-    && c !== CHAR_VERTICAL_LINE
-    && c !== CHAR_GREATER_THAN
-    && c !== CHAR_SINGLE_QUOTE
-    && c !== CHAR_DOUBLE_QUOTE
-    // | “%” | “@” | “`”)
-    && c !== CHAR_PERCENT
-    && c !== CHAR_COMMERCIAL_AT
-    && c !== CHAR_GRAVE_ACCENT;
-}
-
-// Determines whether block indentation indicator is required.
-function needIndentIndicator(string) {
-  var leadingSpaceRe = /^\n* /;
-  return leadingSpaceRe.test(string);
-}
-
-var STYLE_PLAIN   = 1,
-    STYLE_SINGLE  = 2,
-    STYLE_LITERAL = 3,
-    STYLE_FOLDED  = 4,
-    STYLE_DOUBLE  = 5;
-
-// Determines which scalar styles are possible and returns the preferred style.
-// lineWidth = -1 => no limit.
-// Pre-conditions: str.length > 0.
-// Post-conditions:
-//    STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
-//    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
-//    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
-function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth, testAmbiguousType) {
-  var i;
-  var char;
-  var hasLineBreak = false;
-  var hasFoldableLine = false; // only checked if shouldTrackWidth
-  var shouldTrackWidth = lineWidth !== -1;
-  var previousLineBreak = -1; // count the first line correctly
-  var plain = isPlainSafeFirst(string.charCodeAt(0))
-          && !isWhitespace(string.charCodeAt(string.length - 1));
-
-  if (singleLineOnly) {
-    // Case: no block styles.
-    // Check for disallowed characters to rule out plain and single.
-    for (i = 0; i < string.length; i++) {
-      char = string.charCodeAt(i);
-      if (!isPrintable(char)) {
-        return STYLE_DOUBLE;
-      }
-      plain = plain && isPlainSafe(char);
-    }
-  } else {
-    // Case: block styles permitted.
-    for (i = 0; i < string.length; i++) {
-      char = string.charCodeAt(i);
-      if (char === CHAR_LINE_FEED) {
-        hasLineBreak = true;
-        // Check if any line can be folded.
-        if (shouldTrackWidth) {
-          hasFoldableLine = hasFoldableLine ||
-            // Foldable line = too long, and not more-indented.
-            (i - previousLineBreak - 1 > lineWidth &&
-             string[previousLineBreak + 1] !== ' ');
-          previousLineBreak = i;
-        }
-      } else if (!isPrintable(char)) {
-        return STYLE_DOUBLE;
-      }
-      plain = plain && isPlainSafe(char);
-    }
-    // in case the end is missing a \n
-    hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
-      (i - previousLineBreak - 1 > lineWidth &&
-       string[previousLineBreak + 1] !== ' '));
-  }
-  // Although every style can represent \n without escaping, prefer block styles
-  // for multiline, since they're more readable and they don't add empty lines.
-  // Also prefer folding a super-long line.
-  if (!hasLineBreak && !hasFoldableLine) {
-    // Strings interpretable as another type have to be quoted;
-    // e.g. the string 'true' vs. the boolean true.
-    return plain && !testAmbiguousType(string)
-      ? STYLE_PLAIN : STYLE_SINGLE;
-  }
-  // Edge case: block indentation indicator can only have one digit.
-  if (indentPerLevel > 9 && needIndentIndicator(string)) {
-    return STYLE_DOUBLE;
-  }
-  // At this point we know block styles are valid.
-  // Prefer literal style unless we want to fold.
-  return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
-}
-
-// Note: line breaking/folding is implemented for only the folded style.
-// NB. We drop the last trailing newline (if any) of a returned block scalar
-//  since the dumper adds its own newline. This always works:
-//    • No ending newline => unaffected; already using strip "-" chomping.
-//    • Ending newline    => removed then restored.
-//  Importantly, this keeps the "+" chomp indicator from gaining an extra line.
-function writeScalar(state, string, level, iskey) {
-  state.dump = (function () {
-    if (string.length === 0) {
-      return "''";
-    }
-    if (!state.noCompatMode &&
-        DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1) {
-      return "'" + string + "'";
-    }
-
-    var indent = state.indent * Math.max(1, level); // no 0-indent scalars
-    // As indentation gets deeper, let the width decrease monotonically
-    // to the lower bound min(state.lineWidth, 40).
-    // Note that this implies
-    //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
-    //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.
-    // This behaves better than a constant minimum width which disallows narrower options,
-    // or an indent threshold which causes the width to suddenly increase.
-    var lineWidth = state.lineWidth === -1
-      ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
-
-    // Without knowing if keys are implicit/explicit, assume implicit for safety.
-    var singleLineOnly = iskey
-      // No block styles in flow mode.
-      || (state.flowLevel > -1 && level >= state.flowLevel);
-    function testAmbiguity(string) {
-      return testImplicitResolving(state, string);
-    }
-
-    switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth, testAmbiguity)) {
-      case STYLE_PLAIN:
-        return string;
-      case STYLE_SINGLE:
-        return "'" + string.replace(/'/g, "''") + "'";
-      case STYLE_LITERAL:
-        return '|' + blockHeader(string, state.indent)
-          + dropEndingNewline(indentString(string, indent));
-      case STYLE_FOLDED:
-        return '>' + blockHeader(string, state.indent)
-          + dropEndingNewline(indentString(foldString(string, lineWidth), indent));
-      case STYLE_DOUBLE:
-        return '"' + escapeString(string, lineWidth) + '"';
-      default:
-        throw new YAMLException('impossible error: invalid scalar style');
-    }
-  }());
-}
-
-// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
-function blockHeader(string, indentPerLevel) {
-  var indentIndicator = needIndentIndicator(string) ? String(indentPerLevel) : '';
-
-  // note the special case: the string '\n' counts as a "trailing" empty line.
-  var clip =          string[string.length - 1] === '\n';
-  var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
-  var chomp = keep ? '+' : (clip ? '' : '-');
-
-  return indentIndicator + chomp + '\n';
-}
-
-// (See the note for writeScalar.)
-function dropEndingNewline(string) {
-  return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
-}
-
-// Note: a long line without a suitable break point will exceed the width limit.
-// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
-function foldString(string, width) {
-  // In folded style, $k$ consecutive newlines output as $k+1$ newlines—
-  // unless they're before or after a more-indented line, or at the very
-  // beginning or end, in which case $k$ maps to $k$.
-  // Therefore, parse each chunk as newline(s) followed by a content line.
-  var lineRe = /(\n+)([^\n]*)/g;
-
-  // first line (possibly an empty line)
-  var result = (function () {
-    var nextLF = string.indexOf('\n');
-    nextLF = nextLF !== -1 ? nextLF : string.length;
-    lineRe.lastIndex = nextLF;
-    return foldLine(string.slice(0, nextLF), width);
-  }());
-  // If we haven't reached the first content line yet, don't add an extra \n.
-  var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
-  var moreIndented;
-
-  // rest of the lines
-  var match;
-  while ((match = lineRe.exec(string))) {
-    var prefix = match[1], line = match[2];
-    moreIndented = (line[0] === ' ');
-    result += prefix
-      + (!prevMoreIndented && !moreIndented && line !== ''
-        ? '\n' : '')
-      + foldLine(line, width);
-    prevMoreIndented = moreIndented;
-  }
-
-  return result;
-}
-
-// Greedy line breaking.
-// Picks the longest line under the limit each time,
-// otherwise settles for the shortest line over the limit.
-// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
-function foldLine(line, width) {
-  if (line === '' || line[0] === ' ') return line;
-
-  // Since a more-indented line adds a \n, breaks can't be followed by a space.
-  var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
-  var match;
-  // start is an inclusive index. end, curr, and next are exclusive.
-  var start = 0, end, curr = 0, next = 0;
-  var result = '';
-
-  // Invariants: 0 <= start <= length-1.
-  //   0 <= curr <= next <= max(0, length-2). curr - start <= width.
-  // Inside the loop:
-  //   A match implies length >= 2, so curr and next are <= length-2.
-  while ((match = breakRe.exec(line))) {
-    next = match.index;
-    // maintain invariant: curr - start <= width
-    if (next - start > width) {
-      end = (curr > start) ? curr : next; // derive end <= length-2
-      result += '\n' + line.slice(start, end);
-      // skip the space that was output as \n
-      start = end + 1;                    // derive start <= length-1
-    }
-    curr = next;
-  }
-
-  // By the invariants, start <= length-1, so there is something left over.
-  // It is either the whole string or a part starting from non-whitespace.
-  result += '\n';
-  // Insert a break if the remainder is too long and there is a break available.
-  if (line.length - start > width && curr > start) {
-    result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
-  } else {
-    result += line.slice(start);
-  }
-
-  return result.slice(1); // drop extra \n joiner
-}
-
-// Escapes a double-quoted string.
-function escapeString(string) {
-  var result = '';
-  var char, nextChar;
-  var escapeSeq;
-
-  for (var i = 0; i < string.length; i++) {
-    char = string.charCodeAt(i);
-    // Check for surrogate pairs (reference Unicode 3.0 section "3.7 Surrogates").
-    if (char >= 0xD800 && char <= 0xDBFF/* high surrogate */) {
-      nextChar = string.charCodeAt(i + 1);
-      if (nextChar >= 0xDC00 && nextChar <= 0xDFFF/* low surrogate */) {
-        // Combine the surrogate pair and store it escaped.
-        result += encodeHex((char - 0xD800) * 0x400 + nextChar - 0xDC00 + 0x10000);
-        // Advance index one extra since we already used that char here.
-        i++; continue;
-      }
-    }
-    escapeSeq = ESCAPE_SEQUENCES[char];
-    result += !escapeSeq && isPrintable(char)
-      ? string[i]
-      : escapeSeq || encodeHex(char);
-  }
-
-  return result;
-}
-
-function writeFlowSequence(state, level, object) {
-  var _result = '',
-      _tag    = state.tag,
-      index,
-      length;
-
-  for (index = 0, length = object.length; index < length; index += 1) {
-    // Write only valid elements.
-    if (writeNode(state, level, object[index], false, false)) {
-      if (index !== 0) _result += ',' + (!state.condenseFlow ? ' ' : '');
-      _result += state.dump;
-    }
-  }
-
-  state.tag = _tag;
-  state.dump = '[' + _result + ']';
-}
-
-function writeBlockSequence(state, level, object, compact) {
-  var _result = '',
-      _tag    = state.tag,
-      index,
-      length;
-
-  for (index = 0, length = object.length; index < length; index += 1) {
-    // Write only valid elements.
-    if (writeNode(state, level + 1, object[index], true, true)) {
-      if (!compact || index !== 0) {
-        _result += generateNextLine(state, level);
-      }
-
-      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
-        _result += '-';
-      } else {
-        _result += '- ';
-      }
-
-      _result += state.dump;
-    }
-  }
-
-  state.tag = _tag;
-  state.dump = _result || '[]'; // Empty sequence if no valid values.
-}
-
-function writeFlowMapping(state, level, object) {
-  var _result       = '',
-      _tag          = state.tag,
-      objectKeyList = Object.keys(object),
-      index,
-      length,
-      objectKey,
-      objectValue,
-      pairBuffer;
-
-  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
-    pairBuffer = state.condenseFlow ? '"' : '';
-
-    if (index !== 0) pairBuffer += ', ';
-
-    objectKey = objectKeyList[index];
-    objectValue = object[objectKey];
-
-    if (!writeNode(state, level, objectKey, false, false)) {
-      continue; // Skip this pair because of invalid key;
-    }
-
-    if (state.dump.length > 1024) pairBuffer += '? ';
-
-    pairBuffer += state.dump + (state.condenseFlow ? '"' : '') + ':' + (state.condenseFlow ? '' : ' ');
-
-    if (!writeNode(state, level, objectValue, false, false)) {
-      continue; // Skip this pair because of invalid value.
-    }
-
-    pairBuffer += state.dump;
-
-    // Both key and value are valid.
-    _result += pairBuffer;
-  }
-
-  state.tag = _tag;
-  state.dump = '{' + _result + '}';
-}
-
-function writeBlockMapping(state, level, object, compact) {
-  var _result       = '',
-      _tag          = state.tag,
-      objectKeyList = Object.keys(object),
-      index,
-      length,
-      objectKey,
-      objectValue,
-      explicitPair,
-      pairBuffer;
-
-  // Allow sorting keys so that the output file is deterministic
-  if (state.sortKeys === true) {
-    // Default sorting
-    objectKeyList.sort();
-  } else if (typeof state.sortKeys === 'function') {
-    // Custom sort function
-    objectKeyList.sort(state.sortKeys);
-  } else if (state.sortKeys) {
-    // Something is wrong
-    throw new YAMLException('sortKeys must be a boolean or a function');
-  }
-
-  for (index = 0, length = objectKeyList.length; index < length; index += 1) {
-    pairBuffer = '';
-
-    if (!compact || index !== 0) {
-      pairBuffer += generateNextLine(state, level);
-    }
-
-    objectKey = objectKeyList[index];
-    objectValue = object[objectKey];
-
-    if (!writeNode(state, level + 1, objectKey, true, true, true)) {
-      continue; // Skip this pair because of invalid key.
-    }
-
-    explicitPair = (state.tag !== null && state.tag !== '?') ||
-                   (state.dump && state.dump.length > 1024);
-
-    if (explicitPair) {
-      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
-        pairBuffer += '?';
-      } else {
-        pairBuffer += '? ';
-      }
-    }
-
-    pairBuffer += state.dump;
-
-    if (explicitPair) {
-      pairBuffer += generateNextLine(state, level);
-    }
-
-    if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
-      continue; // Skip this pair because of invalid value.
-    }
-
-    if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
-      pairBuffer += ':';
-    } else {
-      pairBuffer += ': ';
-    }
-
-    pairBuffer += state.dump;
-
-    // Both key and value are valid.
-    _result += pairBuffer;
-  }
-
-  state.tag = _tag;
-  state.dump = _result || '{}'; // Empty mapping if no valid pairs.
-}
-
-function detectType(state, object, explicit) {
-  var _result, typeList, index, length, type, style;
-
-  typeList = explicit ? state.explicitTypes : state.implicitTypes;
-
-  for (index = 0, length = typeList.length; index < length; index += 1) {
-    type = typeList[index];
-
-    if ((type.instanceOf  || type.predicate) &&
-        (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
-        (!type.predicate  || type.predicate(object))) {
-
-      state.tag = explicit ? type.tag : '?';
-
-      if (type.represent) {
-        style = state.styleMap[type.tag] || type.defaultStyle;
-
-        if (_toString.call(type.represent) === '[object Function]') {
-          _result = type.represent(object, style);
-        } else if (_hasOwnProperty.call(type.represent, style)) {
-          _result = type.represent[style](object, style);
-        } else {
-          throw new YAMLException('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
-        }
-
-        state.dump = _result;
-      }
-
-      return true;
-    }
-  }
-
-  return false;
-}
-
-// Serializes `object` and writes it to global `result`.
-// Returns true on success, or false on invalid object.
-//
-function writeNode(state, level, object, block, compact, iskey) {
-  state.tag = null;
-  state.dump = object;
-
-  if (!detectType(state, object, false)) {
-    detectType(state, object, true);
-  }
-
-  var type = _toString.call(state.dump);
-
-  if (block) {
-    block = (state.flowLevel < 0 || state.flowLevel > level);
-  }
-
-  var objectOrArray = type === '[object Object]' || type === '[object Array]',
-      duplicateIndex,
-      duplicate;
-
-  if (objectOrArray) {
-    duplicateIndex = state.duplicates.indexOf(object);
-    duplicate = duplicateIndex !== -1;
-  }
-
-  if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
-    compact = false;
-  }
-
-  if (duplicate && state.usedDuplicates[duplicateIndex]) {
-    state.dump = '*ref_' + duplicateIndex;
-  } else {
-    if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
-      state.usedDuplicates[duplicateIndex] = true;
-    }
-    if (type === '[object Object]') {
-      if (block && (Object.keys(state.dump).length !== 0)) {
-        writeBlockMapping(state, level, state.dump, compact);
-        if (duplicate) {
-          state.dump = '&ref_' + duplicateIndex + state.dump;
-        }
-      } else {
-        writeFlowMapping(state, level, state.dump);
-        if (duplicate) {
-          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
-        }
-      }
-    } else if (type === '[object Array]') {
-      var arrayLevel = (state.noArrayIndent && (level > 0)) ? level - 1 : level;
-      if (block && (state.dump.length !== 0)) {
-        writeBlockSequence(state, arrayLevel, state.dump, compact);
-        if (duplicate) {
-          state.dump = '&ref_' + duplicateIndex + state.dump;
-        }
-      } else {
-        writeFlowSequence(state, arrayLevel, state.dump);
-        if (duplicate) {
-          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
-        }
-      }
-    } else if (type === '[object String]') {
-      if (state.tag !== '?') {
-        writeScalar(state, state.dump, level, iskey);
-      }
-    } else {
-      if (state.skipInvalid) return false;
-      throw new YAMLException('unacceptable kind of an object to dump ' + type);
-    }
-
-    if (state.tag !== null && state.tag !== '?') {
-      state.dump = '!<' + state.tag + '> ' + state.dump;
-    }
-  }
-
-  return true;
-}
-
-function getDuplicateReferences(object, state) {
-  var objects = [],
-      duplicatesIndexes = [],
-      index,
-      length;
-
-  inspectNode(object, objects, duplicatesIndexes);
-
-  for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
-    state.duplicates.push(objects[duplicatesIndexes[index]]);
-  }
-  state.usedDuplicates = new Array(length);
-}
-
-function inspectNode(object, objects, duplicatesIndexes) {
-  var objectKeyList,
-      index,
-      length;
-
-  if (object !== null && typeof object === 'object') {
-    index = objects.indexOf(object);
-    if (index !== -1) {
-      if (duplicatesIndexes.indexOf(index) === -1) {
-        duplicatesIndexes.push(index);
-      }
-    } else {
-      objects.push(object);
-
-      if (Array.isArray(object)) {
-        for (index = 0, length = object.length; index < length; index += 1) {
-          inspectNode(object[index], objects, duplicatesIndexes);
-        }
-      } else {
-        objectKeyList = Object.keys(object);
-
-        for (index = 0, length = objectKeyList.length; index < length; index += 1) {
-          inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
-        }
-      }
-    }
-  }
-}
-
-function dump(input, options) {
-  options = options || {};
-
-  var state = new State(options);
-
-  if (!state.noRefs) getDuplicateReferences(input, state);
-
-  if (writeNode(state, 0, input, true, true)) return state.dump + '\n';
-
-  return '';
-}
-
-function safeDump(input, options) {
-  return dump(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
-}
-
-module.exports.dump     = dump;
-module.exports.safeDump = safeDump;
-
-
-/***/ }),
-/* 282 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/*eslint-disable max-len,no-use-before-define*/
-
-var common              = __webpack_require__(43);
-var YAMLException       = __webpack_require__(54);
-var Mark                = __webpack_require__(283);
-var DEFAULT_SAFE_SCHEMA = __webpack_require__(55);
-var DEFAULT_FULL_SCHEMA = __webpack_require__(73);
-
-
-var _hasOwnProperty = Object.prototype.hasOwnProperty;
-
-
-var CONTEXT_FLOW_IN   = 1;
-var CONTEXT_FLOW_OUT  = 2;
-var CONTEXT_BLOCK_IN  = 3;
-var CONTEXT_BLOCK_OUT = 4;
-
-
-var CHOMPING_CLIP  = 1;
-var CHOMPING_STRIP = 2;
-var CHOMPING_KEEP  = 3;
-
-
-var PATTERN_NON_PRINTABLE         = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
-var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
-var PATTERN_FLOW_INDICATORS       = /[,\[\]\{\}]/;
-var PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\-]+!)$/i;
-var PATTERN_TAG_URI               = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
-
-
-function _class(obj) { return Object.prototype.toString.call(obj); }
-
-function is_EOL(c) {
-  return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
-}
-
-function is_WHITE_SPACE(c) {
-  return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
-}
-
-function is_WS_OR_EOL(c) {
-  return (c === 0x09/* Tab */) ||
-         (c === 0x20/* Space */) ||
-         (c === 0x0A/* LF */) ||
-         (c === 0x0D/* CR */);
-}
-
-function is_FLOW_INDICATOR(c) {
-  return c === 0x2C/* , */ ||
-         c === 0x5B/* [ */ ||
-         c === 0x5D/* ] */ ||
-         c === 0x7B/* { */ ||
-         c === 0x7D/* } */;
-}
-
-function fromHexCode(c) {
-  var lc;
-
-  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
-    return c - 0x30;
-  }
-
-  /*eslint-disable no-bitwise*/
-  lc = c | 0x20;
-
-  if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
-    return lc - 0x61 + 10;
-  }
-
-  return -1;
-}
-
-function escapedHexLen(c) {
-  if (c === 0x78/* x */) { return 2; }
-  if (c === 0x75/* u */) { return 4; }
-  if (c === 0x55/* U */) { return 8; }
-  return 0;
-}
-
-function fromDecimalCode(c) {
-  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
-    return c - 0x30;
-  }
-
-  return -1;
-}
-
-function simpleEscapeSequence(c) {
-  /* eslint-disable indent */
-  return (c === 0x30/* 0 */) ? '\x00' :
-        (c === 0x61/* a */) ? '\x07' :
-        (c === 0x62/* b */) ? '\x08' :
-        (c === 0x74/* t */) ? '\x09' :
-        (c === 0x09/* Tab */) ? '\x09' :
-        (c === 0x6E/* n */) ? '\x0A' :
-        (c === 0x76/* v */) ? '\x0B' :
-        (c === 0x66/* f */) ? '\x0C' :
-        (c === 0x72/* r */) ? '\x0D' :
-        (c === 0x65/* e */) ? '\x1B' :
-        (c === 0x20/* Space */) ? ' ' :
-        (c === 0x22/* " */) ? '\x22' :
-        (c === 0x2F/* / */) ? '/' :
-        (c === 0x5C/* \ */) ? '\x5C' :
-        (c === 0x4E/* N */) ? '\x85' :
-        (c === 0x5F/* _ */) ? '\xA0' :
-        (c === 0x4C/* L */) ? '\u2028' :
-        (c === 0x50/* P */) ? '\u2029' : '';
-}
-
-function charFromCodepoint(c) {
-  if (c <= 0xFFFF) {
-    return String.fromCharCode(c);
-  }
-  // Encode UTF-16 surrogate pair
-  // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
-  return String.fromCharCode(
-    ((c - 0x010000) >> 10) + 0xD800,
-    ((c - 0x010000) & 0x03FF) + 0xDC00
-  );
-}
-
-var simpleEscapeCheck = new Array(256); // integer, for fast access
-var simpleEscapeMap = new Array(256);
-for (var i = 0; i < 256; i++) {
-  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
-  simpleEscapeMap[i] = simpleEscapeSequence(i);
-}
-
-
-function State(input, options) {
-  this.input = input;
-
-  this.filename  = options['filename']  || null;
-  this.schema    = options['schema']    || DEFAULT_FULL_SCHEMA;
-  this.onWarning = options['onWarning'] || null;
-  this.legacy    = options['legacy']    || false;
-  this.json      = options['json']      || false;
-  this.listener  = options['listener']  || null;
-
-  this.implicitTypes = this.schema.compiledImplicit;
-  this.typeMap       = this.schema.compiledTypeMap;
-
-  this.length     = input.length;
-  this.position   = 0;
-  this.line       = 0;
-  this.lineStart  = 0;
-  this.lineIndent = 0;
-
-  this.documents = [];
-
-  /*
-  this.version;
-  this.checkLineBreaks;
-  this.tagMap;
-  this.anchorMap;
-  this.tag;
-  this.anchor;
-  this.kind;
-  this.result;*/
-
-}
-
-
-function generateError(state, message) {
-  return new YAMLException(
-    message,
-    new Mark(state.filename, state.input, state.position, state.line, (state.position - state.lineStart)));
-}
-
-function throwError(state, message) {
-  throw generateError(state, message);
-}
-
-function throwWarning(state, message) {
-  if (state.onWarning) {
-    state.onWarning.call(null, generateError(state, message));
-  }
-}
-
-
-var directiveHandlers = {
-
-  YAML: function handleYamlDirective(state, name, args) {
-
-    var match, major, minor;
-
-    if (state.version !== null) {
-      throwError(state, 'duplication of %YAML directive');
-    }
-
-    if (args.length !== 1) {
-      throwError(state, 'YAML directive accepts exactly one argument');
-    }
-
-    match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
-
-    if (match === null) {
-      throwError(state, 'ill-formed argument of the YAML directive');
-    }
-
-    major = parseInt(match[1], 10);
-    minor = parseInt(match[2], 10);
-
-    if (major !== 1) {
-      throwError(state, 'unacceptable YAML version of the document');
-    }
-
-    state.version = args[0];
-    state.checkLineBreaks = (minor < 2);
-
-    if (minor !== 1 && minor !== 2) {
-      throwWarning(state, 'unsupported YAML version of the document');
-    }
-  },
-
-  TAG: function handleTagDirective(state, name, args) {
-
-    var handle, prefix;
-
-    if (args.length !== 2) {
-      throwError(state, 'TAG directive accepts exactly two arguments');
-    }
-
-    handle = args[0];
-    prefix = args[1];
-
-    if (!PATTERN_TAG_HANDLE.test(handle)) {
-      throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
-    }
-
-    if (_hasOwnProperty.call(state.tagMap, handle)) {
-      throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
-    }
-
-    if (!PATTERN_TAG_URI.test(prefix)) {
-      throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
-    }
-
-    state.tagMap[handle] = prefix;
-  }
-};
-
-
-function captureSegment(state, start, end, checkJson) {
-  var _position, _length, _character, _result;
-
-  if (start < end) {
-    _result = state.input.slice(start, end);
-
-    if (checkJson) {
-      for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
-        _character = _result.charCodeAt(_position);
-        if (!(_character === 0x09 ||
-              (0x20 <= _character && _character <= 0x10FFFF))) {
-          throwError(state, 'expected valid JSON character');
-        }
-      }
-    } else if (PATTERN_NON_PRINTABLE.test(_result)) {
-      throwError(state, 'the stream contains non-printable characters');
-    }
-
-    state.result += _result;
-  }
-}
-
-function mergeMappings(state, destination, source, overridableKeys) {
-  var sourceKeys, key, index, quantity;
-
-  if (!common.isObject(source)) {
-    throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
-  }
-
-  sourceKeys = Object.keys(source);
-
-  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
-    key = sourceKeys[index];
-
-    if (!_hasOwnProperty.call(destination, key)) {
-      destination[key] = source[key];
-      overridableKeys[key] = true;
-    }
-  }
-}
-
-function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, startLine, startPos) {
-  var index, quantity;
-
-  // The output is a plain object here, so keys can only be strings.
-  // We need to convert keyNode to a string, but doing so can hang the process
-  // (deeply nested arrays that explode exponentially using aliases).
-  if (Array.isArray(keyNode)) {
-    keyNode = Array.prototype.slice.call(keyNode);
-
-    for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {
-      if (Array.isArray(keyNode[index])) {
-        throwError(state, 'nested arrays are not supported inside keys');
-      }
-
-      if (typeof keyNode === 'object' && _class(keyNode[index]) === '[object Object]') {
-        keyNode[index] = '[object Object]';
-      }
-    }
-  }
-
-  // Avoid code execution in load() via toString property
-  // (still use its own toString for arrays, timestamps,
-  // and whatever user schema extensions happen to have @@toStringTag)
-  if (typeof keyNode === 'object' && _class(keyNode) === '[object Object]') {
-    keyNode = '[object Object]';
-  }
-
-
-  keyNode = String(keyNode);
-
-  if (_result === null) {
-    _result = {};
-  }
-
-  if (keyTag === 'tag:yaml.org,2002:merge') {
-    if (Array.isArray(valueNode)) {
-      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
-        mergeMappings(state, _result, valueNode[index], overridableKeys);
-      }
-    } else {
-      mergeMappings(state, _result, valueNode, overridableKeys);
-    }
-  } else {
-    if (!state.json &&
-        !_hasOwnProperty.call(overridableKeys, keyNode) &&
-        _hasOwnProperty.call(_result, keyNode)) {
-      state.line = startLine || state.line;
-      state.position = startPos || state.position;
-      throwError(state, 'duplicated mapping key');
-    }
-    _result[keyNode] = valueNode;
-    delete overridableKeys[keyNode];
-  }
-
-  return _result;
-}
-
-function readLineBreak(state) {
-  var ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch === 0x0A/* LF */) {
-    state.position++;
-  } else if (ch === 0x0D/* CR */) {
-    state.position++;
-    if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
-      state.position++;
-    }
-  } else {
-    throwError(state, 'a line break is expected');
-  }
-
-  state.line += 1;
-  state.lineStart = state.position;
-}
-
-function skipSeparationSpace(state, allowComments, checkIndent) {
-  var lineBreaks = 0,
-      ch = state.input.charCodeAt(state.position);
-
-  while (ch !== 0) {
-    while (is_WHITE_SPACE(ch)) {
-      ch = state.input.charCodeAt(++state.position);
-    }
-
-    if (allowComments && ch === 0x23/* # */) {
-      do {
-        ch = state.input.charCodeAt(++state.position);
-      } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
-    }
-
-    if (is_EOL(ch)) {
-      readLineBreak(state);
-
-      ch = state.input.charCodeAt(state.position);
-      lineBreaks++;
-      state.lineIndent = 0;
-
-      while (ch === 0x20/* Space */) {
-        state.lineIndent++;
-        ch = state.input.charCodeAt(++state.position);
-      }
-    } else {
-      break;
-    }
-  }
-
-  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
-    throwWarning(state, 'deficient indentation');
-  }
-
-  return lineBreaks;
-}
-
-function testDocumentSeparator(state) {
-  var _position = state.position,
-      ch;
-
-  ch = state.input.charCodeAt(_position);
-
-  // Condition state.position === state.lineStart is tested
-  // in parent on each call, for efficiency. No needs to test here again.
-  if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
-      ch === state.input.charCodeAt(_position + 1) &&
-      ch === state.input.charCodeAt(_position + 2)) {
-
-    _position += 3;
-
-    ch = state.input.charCodeAt(_position);
-
-    if (ch === 0 || is_WS_OR_EOL(ch)) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-function writeFoldedLines(state, count) {
-  if (count === 1) {
-    state.result += ' ';
-  } else if (count > 1) {
-    state.result += common.repeat('\n', count - 1);
-  }
-}
-
-
-function readPlainScalar(state, nodeIndent, withinFlowCollection) {
-  var preceding,
-      following,
-      captureStart,
-      captureEnd,
-      hasPendingContent,
-      _line,
-      _lineStart,
-      _lineIndent,
-      _kind = state.kind,
-      _result = state.result,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (is_WS_OR_EOL(ch)      ||
-      is_FLOW_INDICATOR(ch) ||
-      ch === 0x23/* # */    ||
-      ch === 0x26/* & */    ||
-      ch === 0x2A/* * */    ||
-      ch === 0x21/* ! */    ||
-      ch === 0x7C/* | */    ||
-      ch === 0x3E/* > */    ||
-      ch === 0x27/* ' */    ||
-      ch === 0x22/* " */    ||
-      ch === 0x25/* % */    ||
-      ch === 0x40/* @ */    ||
-      ch === 0x60/* ` */) {
-    return false;
-  }
-
-  if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
-    following = state.input.charCodeAt(state.position + 1);
-
-    if (is_WS_OR_EOL(following) ||
-        withinFlowCollection && is_FLOW_INDICATOR(following)) {
-      return false;
-    }
-  }
-
-  state.kind = 'scalar';
-  state.result = '';
-  captureStart = captureEnd = state.position;
-  hasPendingContent = false;
-
-  while (ch !== 0) {
-    if (ch === 0x3A/* : */) {
-      following = state.input.charCodeAt(state.position + 1);
-
-      if (is_WS_OR_EOL(following) ||
-          withinFlowCollection && is_FLOW_INDICATOR(following)) {
-        break;
-      }
-
-    } else if (ch === 0x23/* # */) {
-      preceding = state.input.charCodeAt(state.position - 1);
-
-      if (is_WS_OR_EOL(preceding)) {
-        break;
-      }
-
-    } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
-               withinFlowCollection && is_FLOW_INDICATOR(ch)) {
-      break;
-
-    } else if (is_EOL(ch)) {
-      _line = state.line;
-      _lineStart = state.lineStart;
-      _lineIndent = state.lineIndent;
-      skipSeparationSpace(state, false, -1);
-
-      if (state.lineIndent >= nodeIndent) {
-        hasPendingContent = true;
-        ch = state.input.charCodeAt(state.position);
-        continue;
-      } else {
-        state.position = captureEnd;
-        state.line = _line;
-        state.lineStart = _lineStart;
-        state.lineIndent = _lineIndent;
-        break;
-      }
-    }
-
-    if (hasPendingContent) {
-      captureSegment(state, captureStart, captureEnd, false);
-      writeFoldedLines(state, state.line - _line);
-      captureStart = captureEnd = state.position;
-      hasPendingContent = false;
-    }
-
-    if (!is_WHITE_SPACE(ch)) {
-      captureEnd = state.position + 1;
-    }
-
-    ch = state.input.charCodeAt(++state.position);
-  }
-
-  captureSegment(state, captureStart, captureEnd, false);
-
-  if (state.result) {
-    return true;
-  }
-
-  state.kind = _kind;
-  state.result = _result;
-  return false;
-}
-
-function readSingleQuotedScalar(state, nodeIndent) {
-  var ch,
-      captureStart, captureEnd;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch !== 0x27/* ' */) {
-    return false;
-  }
-
-  state.kind = 'scalar';
-  state.result = '';
-  state.position++;
-  captureStart = captureEnd = state.position;
-
-  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
-    if (ch === 0x27/* ' */) {
-      captureSegment(state, captureStart, state.position, true);
-      ch = state.input.charCodeAt(++state.position);
-
-      if (ch === 0x27/* ' */) {
-        captureStart = state.position;
-        state.position++;
-        captureEnd = state.position;
-      } else {
-        return true;
-      }
-
-    } else if (is_EOL(ch)) {
-      captureSegment(state, captureStart, captureEnd, true);
-      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
-      captureStart = captureEnd = state.position;
-
-    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
-      throwError(state, 'unexpected end of the document within a single quoted scalar');
-
-    } else {
-      state.position++;
-      captureEnd = state.position;
-    }
-  }
-
-  throwError(state, 'unexpected end of the stream within a single quoted scalar');
-}
-
-function readDoubleQuotedScalar(state, nodeIndent) {
-  var captureStart,
-      captureEnd,
-      hexLength,
-      hexResult,
-      tmp,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch !== 0x22/* " */) {
-    return false;
-  }
-
-  state.kind = 'scalar';
-  state.result = '';
-  state.position++;
-  captureStart = captureEnd = state.position;
-
-  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
-    if (ch === 0x22/* " */) {
-      captureSegment(state, captureStart, state.position, true);
-      state.position++;
-      return true;
-
-    } else if (ch === 0x5C/* \ */) {
-      captureSegment(state, captureStart, state.position, true);
-      ch = state.input.charCodeAt(++state.position);
-
-      if (is_EOL(ch)) {
-        skipSeparationSpace(state, false, nodeIndent);
-
-        // TODO: rework to inline fn with no type cast?
-      } else if (ch < 256 && simpleEscapeCheck[ch]) {
-        state.result += simpleEscapeMap[ch];
-        state.position++;
-
-      } else if ((tmp = escapedHexLen(ch)) > 0) {
-        hexLength = tmp;
-        hexResult = 0;
-
-        for (; hexLength > 0; hexLength--) {
-          ch = state.input.charCodeAt(++state.position);
-
-          if ((tmp = fromHexCode(ch)) >= 0) {
-            hexResult = (hexResult << 4) + tmp;
-
-          } else {
-            throwError(state, 'expected hexadecimal character');
-          }
-        }
-
-        state.result += charFromCodepoint(hexResult);
-
-        state.position++;
-
-      } else {
-        throwError(state, 'unknown escape sequence');
-      }
-
-      captureStart = captureEnd = state.position;
-
-    } else if (is_EOL(ch)) {
-      captureSegment(state, captureStart, captureEnd, true);
-      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
-      captureStart = captureEnd = state.position;
-
-    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {
-      throwError(state, 'unexpected end of the document within a double quoted scalar');
-
-    } else {
-      state.position++;
-      captureEnd = state.position;
-    }
-  }
-
-  throwError(state, 'unexpected end of the stream within a double quoted scalar');
-}
-
-function readFlowCollection(state, nodeIndent) {
-  var readNext = true,
-      _line,
-      _tag     = state.tag,
-      _result,
-      _anchor  = state.anchor,
-      following,
-      terminator,
-      isPair,
-      isExplicitPair,
-      isMapping,
-      overridableKeys = {},
-      keyNode,
-      keyTag,
-      valueNode,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch === 0x5B/* [ */) {
-    terminator = 0x5D;/* ] */
-    isMapping = false;
-    _result = [];
-  } else if (ch === 0x7B/* { */) {
-    terminator = 0x7D;/* } */
-    isMapping = true;
-    _result = {};
-  } else {
-    return false;
-  }
-
-  if (state.anchor !== null) {
-    state.anchorMap[state.anchor] = _result;
-  }
-
-  ch = state.input.charCodeAt(++state.position);
-
-  while (ch !== 0) {
-    skipSeparationSpace(state, true, nodeIndent);
-
-    ch = state.input.charCodeAt(state.position);
-
-    if (ch === terminator) {
-      state.position++;
-      state.tag = _tag;
-      state.anchor = _anchor;
-      state.kind = isMapping ? 'mapping' : 'sequence';
-      state.result = _result;
-      return true;
-    } else if (!readNext) {
-      throwError(state, 'missed comma between flow collection entries');
-    }
-
-    keyTag = keyNode = valueNode = null;
-    isPair = isExplicitPair = false;
-
-    if (ch === 0x3F/* ? */) {
-      following = state.input.charCodeAt(state.position + 1);
-
-      if (is_WS_OR_EOL(following)) {
-        isPair = isExplicitPair = true;
-        state.position++;
-        skipSeparationSpace(state, true, nodeIndent);
-      }
-    }
-
-    _line = state.line;
-    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
-    keyTag = state.tag;
-    keyNode = state.result;
-    skipSeparationSpace(state, true, nodeIndent);
-
-    ch = state.input.charCodeAt(state.position);
-
-    if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {
-      isPair = true;
-      ch = state.input.charCodeAt(++state.position);
-      skipSeparationSpace(state, true, nodeIndent);
-      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
-      valueNode = state.result;
-    }
-
-    if (isMapping) {
-      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode);
-    } else if (isPair) {
-      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode));
-    } else {
-      _result.push(keyNode);
-    }
-
-    skipSeparationSpace(state, true, nodeIndent);
-
-    ch = state.input.charCodeAt(state.position);
-
-    if (ch === 0x2C/* , */) {
-      readNext = true;
-      ch = state.input.charCodeAt(++state.position);
-    } else {
-      readNext = false;
-    }
-  }
-
-  throwError(state, 'unexpected end of the stream within a flow collection');
-}
-
-function readBlockScalar(state, nodeIndent) {
-  var captureStart,
-      folding,
-      chomping       = CHOMPING_CLIP,
-      didReadContent = false,
-      detectedIndent = false,
-      textIndent     = nodeIndent,
-      emptyLines     = 0,
-      atMoreIndented = false,
-      tmp,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch === 0x7C/* | */) {
-    folding = false;
-  } else if (ch === 0x3E/* > */) {
-    folding = true;
-  } else {
-    return false;
-  }
-
-  state.kind = 'scalar';
-  state.result = '';
-
-  while (ch !== 0) {
-    ch = state.input.charCodeAt(++state.position);
-
-    if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {
-      if (CHOMPING_CLIP === chomping) {
-        chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;
-      } else {
-        throwError(state, 'repeat of a chomping mode identifier');
-      }
-
-    } else if ((tmp = fromDecimalCode(ch)) >= 0) {
-      if (tmp === 0) {
-        throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
-      } else if (!detectedIndent) {
-        textIndent = nodeIndent + tmp - 1;
-        detectedIndent = true;
-      } else {
-        throwError(state, 'repeat of an indentation width identifier');
-      }
-
-    } else {
-      break;
-    }
-  }
-
-  if (is_WHITE_SPACE(ch)) {
-    do { ch = state.input.charCodeAt(++state.position); }
-    while (is_WHITE_SPACE(ch));
-
-    if (ch === 0x23/* # */) {
-      do { ch = state.input.charCodeAt(++state.position); }
-      while (!is_EOL(ch) && (ch !== 0));
-    }
-  }
-
-  while (ch !== 0) {
-    readLineBreak(state);
-    state.lineIndent = 0;
-
-    ch = state.input.charCodeAt(state.position);
-
-    while ((!detectedIndent || state.lineIndent < textIndent) &&
-           (ch === 0x20/* Space */)) {
-      state.lineIndent++;
-      ch = state.input.charCodeAt(++state.position);
-    }
-
-    if (!detectedIndent && state.lineIndent > textIndent) {
-      textIndent = state.lineIndent;
-    }
-
-    if (is_EOL(ch)) {
-      emptyLines++;
-      continue;
-    }
-
-    // End of the scalar.
-    if (state.lineIndent < textIndent) {
-
-      // Perform the chomping.
-      if (chomping === CHOMPING_KEEP) {
-        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
-      } else if (chomping === CHOMPING_CLIP) {
-        if (didReadContent) { // i.e. only if the scalar is not empty.
-          state.result += '\n';
-        }
-      }
-
-      // Break this `while` cycle and go to the funciton's epilogue.
-      break;
-    }
-
-    // Folded style: use fancy rules to handle line breaks.
-    if (folding) {
-
-      // Lines starting with white space characters (more-indented lines) are not folded.
-      if (is_WHITE_SPACE(ch)) {
-        atMoreIndented = true;
-        // except for the first content line (cf. Example 8.1)
-        state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
-
-      // End of more-indented block.
-      } else if (atMoreIndented) {
-        atMoreIndented = false;
-        state.result += common.repeat('\n', emptyLines + 1);
-
-      // Just one line break - perceive as the same line.
-      } else if (emptyLines === 0) {
-        if (didReadContent) { // i.e. only if we have already read some scalar content.
-          state.result += ' ';
-        }
-
-      // Several line breaks - perceive as different lines.
-      } else {
-        state.result += common.repeat('\n', emptyLines);
-      }
-
-    // Literal style: just add exact number of line breaks between content lines.
-    } else {
-      // Keep all line breaks except the header line break.
-      state.result += common.repeat('\n', didReadContent ? 1 + emptyLines : emptyLines);
-    }
-
-    didReadContent = true;
-    detectedIndent = true;
-    emptyLines = 0;
-    captureStart = state.position;
-
-    while (!is_EOL(ch) && (ch !== 0)) {
-      ch = state.input.charCodeAt(++state.position);
-    }
-
-    captureSegment(state, captureStart, state.position, false);
-  }
-
-  return true;
-}
-
-function readBlockSequence(state, nodeIndent) {
-  var _line,
-      _tag      = state.tag,
-      _anchor   = state.anchor,
-      _result   = [],
-      following,
-      detected  = false,
-      ch;
-
-  if (state.anchor !== null) {
-    state.anchorMap[state.anchor] = _result;
-  }
-
-  ch = state.input.charCodeAt(state.position);
-
-  while (ch !== 0) {
-
-    if (ch !== 0x2D/* - */) {
-      break;
-    }
-
-    following = state.input.charCodeAt(state.position + 1);
-
-    if (!is_WS_OR_EOL(following)) {
-      break;
-    }
-
-    detected = true;
-    state.position++;
-
-    if (skipSeparationSpace(state, true, -1)) {
-      if (state.lineIndent <= nodeIndent) {
-        _result.push(null);
-        ch = state.input.charCodeAt(state.position);
-        continue;
-      }
-    }
-
-    _line = state.line;
-    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
-    _result.push(state.result);
-    skipSeparationSpace(state, true, -1);
-
-    ch = state.input.charCodeAt(state.position);
-
-    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {
-      throwError(state, 'bad indentation of a sequence entry');
-    } else if (state.lineIndent < nodeIndent) {
-      break;
-    }
-  }
-
-  if (detected) {
-    state.tag = _tag;
-    state.anchor = _anchor;
-    state.kind = 'sequence';
-    state.result = _result;
-    return true;
-  }
-  return false;
-}
-
-function readBlockMapping(state, nodeIndent, flowIndent) {
-  var following,
-      allowCompact,
-      _line,
-      _pos,
-      _tag          = state.tag,
-      _anchor       = state.anchor,
-      _result       = {},
-      overridableKeys = {},
-      keyTag        = null,
-      keyNode       = null,
-      valueNode     = null,
-      atExplicitKey = false,
-      detected      = false,
-      ch;
-
-  if (state.anchor !== null) {
-    state.anchorMap[state.anchor] = _result;
-  }
-
-  ch = state.input.charCodeAt(state.position);
-
-  while (ch !== 0) {
-    following = state.input.charCodeAt(state.position + 1);
-    _line = state.line; // Save the current line.
-    _pos = state.position;
-
-    //
-    // Explicit notation case. There are two separate blocks:
-    // first for the key (denoted by "?") and second for the value (denoted by ":")
-    //
-    if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {
-
-      if (ch === 0x3F/* ? */) {
-        if (atExplicitKey) {
-          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
-          keyTag = keyNode = valueNode = null;
-        }
-
-        detected = true;
-        atExplicitKey = true;
-        allowCompact = true;
-
-      } else if (atExplicitKey) {
-        // i.e. 0x3A/* : */ === character after the explicit key.
-        atExplicitKey = false;
-        allowCompact = true;
-
-      } else {
-        throwError(state, 'incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line');
-      }
-
-      state.position += 1;
-      ch = following;
-
-    //
-    // Implicit notation case. Flow-style node as the key first, then ":", and the value.
-    //
-    } else if (composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {
-
-      if (state.line === _line) {
-        ch = state.input.charCodeAt(state.position);
-
-        while (is_WHITE_SPACE(ch)) {
-          ch = state.input.charCodeAt(++state.position);
-        }
-
-        if (ch === 0x3A/* : */) {
-          ch = state.input.charCodeAt(++state.position);
-
-          if (!is_WS_OR_EOL(ch)) {
-            throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
-          }
-
-          if (atExplicitKey) {
-            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
-            keyTag = keyNode = valueNode = null;
-          }
-
-          detected = true;
-          atExplicitKey = false;
-          allowCompact = false;
-          keyTag = state.tag;
-          keyNode = state.result;
-
-        } else if (detected) {
-          throwError(state, 'can not read an implicit mapping pair; a colon is missed');
-
-        } else {
-          state.tag = _tag;
-          state.anchor = _anchor;
-          return true; // Keep the result of `composeNode`.
-        }
-
-      } else if (detected) {
-        throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
-
-      } else {
-        state.tag = _tag;
-        state.anchor = _anchor;
-        return true; // Keep the result of `composeNode`.
-      }
-
-    } else {
-      break; // Reading is done. Go to the epilogue.
-    }
-
-    //
-    // Common reading code for both explicit and implicit notations.
-    //
-    if (state.line === _line || state.lineIndent > nodeIndent) {
-      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
-        if (atExplicitKey) {
-          keyNode = state.result;
-        } else {
-          valueNode = state.result;
-        }
-      }
-
-      if (!atExplicitKey) {
-        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _pos);
-        keyTag = keyNode = valueNode = null;
-      }
-
-      skipSeparationSpace(state, true, -1);
-      ch = state.input.charCodeAt(state.position);
-    }
-
-    if (state.lineIndent > nodeIndent && (ch !== 0)) {
-      throwError(state, 'bad indentation of a mapping entry');
-    } else if (state.lineIndent < nodeIndent) {
-      break;
-    }
-  }
-
-  //
-  // Epilogue.
-  //
-
-  // Special case: last mapping's node contains only the key in explicit notation.
-  if (atExplicitKey) {
-    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null);
-  }
-
-  // Expose the resulting mapping.
-  if (detected) {
-    state.tag = _tag;
-    state.anchor = _anchor;
-    state.kind = 'mapping';
-    state.result = _result;
-  }
-
-  return detected;
-}
-
-function readTagProperty(state) {
-  var _position,
-      isVerbatim = false,
-      isNamed    = false,
-      tagHandle,
-      tagName,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch !== 0x21/* ! */) return false;
-
-  if (state.tag !== null) {
-    throwError(state, 'duplication of a tag property');
-  }
-
-  ch = state.input.charCodeAt(++state.position);
-
-  if (ch === 0x3C/* < */) {
-    isVerbatim = true;
-    ch = state.input.charCodeAt(++state.position);
-
-  } else if (ch === 0x21/* ! */) {
-    isNamed = true;
-    tagHandle = '!!';
-    ch = state.input.charCodeAt(++state.position);
-
-  } else {
-    tagHandle = '!';
-  }
-
-  _position = state.position;
-
-  if (isVerbatim) {
-    do { ch = state.input.charCodeAt(++state.position); }
-    while (ch !== 0 && ch !== 0x3E/* > */);
-
-    if (state.position < state.length) {
-      tagName = state.input.slice(_position, state.position);
-      ch = state.input.charCodeAt(++state.position);
-    } else {
-      throwError(state, 'unexpected end of the stream within a verbatim tag');
-    }
-  } else {
-    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
-
-      if (ch === 0x21/* ! */) {
-        if (!isNamed) {
-          tagHandle = state.input.slice(_position - 1, state.position + 1);
-
-          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
-            throwError(state, 'named tag handle cannot contain such characters');
-          }
-
-          isNamed = true;
-          _position = state.position + 1;
-        } else {
-          throwError(state, 'tag suffix cannot contain exclamation marks');
-        }
-      }
-
-      ch = state.input.charCodeAt(++state.position);
-    }
-
-    tagName = state.input.slice(_position, state.position);
-
-    if (PATTERN_FLOW_INDICATORS.test(tagName)) {
-      throwError(state, 'tag suffix cannot contain flow indicator characters');
-    }
-  }
-
-  if (tagName && !PATTERN_TAG_URI.test(tagName)) {
-    throwError(state, 'tag name cannot contain such characters: ' + tagName);
-  }
-
-  if (isVerbatim) {
-    state.tag = tagName;
-
-  } else if (_hasOwnProperty.call(state.tagMap, tagHandle)) {
-    state.tag = state.tagMap[tagHandle] + tagName;
-
-  } else if (tagHandle === '!') {
-    state.tag = '!' + tagName;
-
-  } else if (tagHandle === '!!') {
-    state.tag = 'tag:yaml.org,2002:' + tagName;
-
-  } else {
-    throwError(state, 'undeclared tag handle "' + tagHandle + '"');
-  }
-
-  return true;
-}
-
-function readAnchorProperty(state) {
-  var _position,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch !== 0x26/* & */) return false;
-
-  if (state.anchor !== null) {
-    throwError(state, 'duplication of an anchor property');
-  }
-
-  ch = state.input.charCodeAt(++state.position);
-  _position = state.position;
-
-  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
-    ch = state.input.charCodeAt(++state.position);
-  }
-
-  if (state.position === _position) {
-    throwError(state, 'name of an anchor node must contain at least one character');
-  }
-
-  state.anchor = state.input.slice(_position, state.position);
-  return true;
-}
-
-function readAlias(state) {
-  var _position, alias,
-      ch;
-
-  ch = state.input.charCodeAt(state.position);
-
-  if (ch !== 0x2A/* * */) return false;
-
-  ch = state.input.charCodeAt(++state.position);
-  _position = state.position;
-
-  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {
-    ch = state.input.charCodeAt(++state.position);
-  }
-
-  if (state.position === _position) {
-    throwError(state, 'name of an alias node must contain at least one character');
-  }
-
-  alias = state.input.slice(_position, state.position);
-
-  if (!state.anchorMap.hasOwnProperty(alias)) {
-    throwError(state, 'unidentified alias "' + alias + '"');
-  }
-
-  state.result = state.anchorMap[alias];
-  skipSeparationSpace(state, true, -1);
-  return true;
-}
-
-function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
-  var allowBlockStyles,
-      allowBlockScalars,
-      allowBlockCollections,
-      indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent
-      atNewLine  = false,
-      hasContent = false,
-      typeIndex,
-      typeQuantity,
-      type,
-      flowIndent,
-      blockIndent;
-
-  if (state.listener !== null) {
-    state.listener('open', state);
-  }
-
-  state.tag    = null;
-  state.anchor = null;
-  state.kind   = null;
-  state.result = null;
-
-  allowBlockStyles = allowBlockScalars = allowBlockCollections =
-    CONTEXT_BLOCK_OUT === nodeContext ||
-    CONTEXT_BLOCK_IN  === nodeContext;
-
-  if (allowToSeek) {
-    if (skipSeparationSpace(state, true, -1)) {
-      atNewLine = true;
-
-      if (state.lineIndent > parentIndent) {
-        indentStatus = 1;
-      } else if (state.lineIndent === parentIndent) {
-        indentStatus = 0;
-      } else if (state.lineIndent < parentIndent) {
-        indentStatus = -1;
-      }
-    }
-  }
-
-  if (indentStatus === 1) {
-    while (readTagProperty(state) || readAnchorProperty(state)) {
-      if (skipSeparationSpace(state, true, -1)) {
-        atNewLine = true;
-        allowBlockCollections = allowBlockStyles;
-
-        if (state.lineIndent > parentIndent) {
-          indentStatus = 1;
-        } else if (state.lineIndent === parentIndent) {
-          indentStatus = 0;
-        } else if (state.lineIndent < parentIndent) {
-          indentStatus = -1;
-        }
-      } else {
-        allowBlockCollections = false;
-      }
-    }
-  }
-
-  if (allowBlockCollections) {
-    allowBlockCollections = atNewLine || allowCompact;
-  }
-
-  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {
-    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
-      flowIndent = parentIndent;
-    } else {
-      flowIndent = parentIndent + 1;
-    }
-
-    blockIndent = state.position - state.lineStart;
-
-    if (indentStatus === 1) {
-      if (allowBlockCollections &&
-          (readBlockSequence(state, blockIndent) ||
-           readBlockMapping(state, blockIndent, flowIndent)) ||
-          readFlowCollection(state, flowIndent)) {
-        hasContent = true;
-      } else {
-        if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
-            readSingleQuotedScalar(state, flowIndent) ||
-            readDoubleQuotedScalar(state, flowIndent)) {
-          hasContent = true;
-
-        } else if (readAlias(state)) {
-          hasContent = true;
-
-          if (state.tag !== null || state.anchor !== null) {
-            throwError(state, 'alias node should not have any properties');
-          }
-
-        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
-          hasContent = true;
-
-          if (state.tag === null) {
-            state.tag = '?';
-          }
-        }
-
-        if (state.anchor !== null) {
-          state.anchorMap[state.anchor] = state.result;
-        }
-      }
-    } else if (indentStatus === 0) {
-      // Special case: block sequences are allowed to have same indentation level as the parent.
-      // http://www.yaml.org/spec/1.2/spec.html#id2799784
-      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
-    }
-  }
-
-  if (state.tag !== null && state.tag !== '!') {
-    if (state.tag === '?') {
-      for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {
-        type = state.implicitTypes[typeIndex];
-
-        // Implicit resolving is not allowed for non-scalar types, and '?'
-        // non-specific tag is only assigned to plain scalars. So, it isn't
-        // needed to check for 'kind' conformity.
-
-        if (type.resolve(state.result)) { // `state.result` updated in resolver if matched
-          state.result = type.construct(state.result);
-          state.tag = type.tag;
-          if (state.anchor !== null) {
-            state.anchorMap[state.anchor] = state.result;
-          }
-          break;
-        }
-      }
-    } else if (_hasOwnProperty.call(state.typeMap[state.kind || 'fallback'], state.tag)) {
-      type = state.typeMap[state.kind || 'fallback'][state.tag];
-
-      if (state.result !== null && type.kind !== state.kind) {
-        throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.kind + '", not "' + state.kind + '"');
-      }
-
-      if (!type.resolve(state.result)) { // `state.result` updated in resolver if matched
-        throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
-      } else {
-        state.result = type.construct(state.result);
-        if (state.anchor !== null) {
-          state.anchorMap[state.anchor] = state.result;
-        }
-      }
-    } else {
-      throwError(state, 'unknown tag !<' + state.tag + '>');
-    }
-  }
-
-  if (state.listener !== null) {
-    state.listener('close', state);
-  }
-  return state.tag !== null ||  state.anchor !== null || hasContent;
-}
-
-function readDocument(state) {
-  var documentStart = state.position,
-      _position,
-      directiveName,
-      directiveArgs,
-      hasDirectives = false,
-      ch;
-
-  state.version = null;
-  state.checkLineBreaks = state.legacy;
-  state.tagMap = {};
-  state.anchorMap = {};
-
-  while ((ch = state.input.charCodeAt(state.position)) !== 0) {
-    skipSeparationSpace(state, true, -1);
-
-    ch = state.input.charCodeAt(state.position);
-
-    if (state.lineIndent > 0 || ch !== 0x25/* % */) {
-      break;
-    }
-
-    hasDirectives = true;
-    ch = state.input.charCodeAt(++state.position);
-    _position = state.position;
-
-    while (ch !== 0 && !is_WS_OR_EOL(ch)) {
-      ch = state.input.charCodeAt(++state.position);
-    }
-
-    directiveName = state.input.slice(_position, state.position);
-    directiveArgs = [];
-
-    if (directiveName.length < 1) {
-      throwError(state, 'directive name must not be less than one character in length');
-    }
-
-    while (ch !== 0) {
-      while (is_WHITE_SPACE(ch)) {
-        ch = state.input.charCodeAt(++state.position);
-      }
-
-      if (ch === 0x23/* # */) {
-        do { ch = state.input.charCodeAt(++state.position); }
-        while (ch !== 0 && !is_EOL(ch));
-        break;
-      }
-
-      if (is_EOL(ch)) break;
-
-      _position = state.position;
-
-      while (ch !== 0 && !is_WS_OR_EOL(ch)) {
-        ch = state.input.charCodeAt(++state.position);
-      }
-
-      directiveArgs.push(state.input.slice(_position, state.position));
-    }
-
-    if (ch !== 0) readLineBreak(state);
-
-    if (_hasOwnProperty.call(directiveHandlers, directiveName)) {
-      directiveHandlers[directiveName](state, directiveName, directiveArgs);
-    } else {
-      throwWarning(state, 'unknown document directive "' + directiveName + '"');
-    }
-  }
-
-  skipSeparationSpace(state, true, -1);
-
-  if (state.lineIndent === 0 &&
-      state.input.charCodeAt(state.position)     === 0x2D/* - */ &&
-      state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&
-      state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {
-    state.position += 3;
-    skipSeparationSpace(state, true, -1);
-
-  } else if (hasDirectives) {
-    throwError(state, 'directives end mark is expected');
-  }
-
-  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
-  skipSeparationSpace(state, true, -1);
-
-  if (state.checkLineBreaks &&
-      PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
-    throwWarning(state, 'non-ASCII line breaks are interpreted as content');
-  }
-
-  state.documents.push(state.result);
-
-  if (state.position === state.lineStart && testDocumentSeparator(state)) {
-
-    if (state.input.charCodeAt(state.position) === 0x2E/* . */) {
-      state.position += 3;
-      skipSeparationSpace(state, true, -1);
-    }
-    return;
-  }
-
-  if (state.position < (state.length - 1)) {
-    throwError(state, 'end of the stream or a document separator is expected');
-  } else {
-    return;
-  }
-}
-
-
-function loadDocuments(input, options) {
-  input = String(input);
-  options = options || {};
-
-  if (input.length !== 0) {
-
-    // Add tailing `\n` if not exists
-    if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&
-        input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {
-      input += '\n';
-    }
-
-    // Strip BOM
-    if (input.charCodeAt(0) === 0xFEFF) {
-      input = input.slice(1);
-    }
-  }
-
-  var state = new State(input, options);
-
-  // Use 0 as string terminator. That significantly simplifies bounds check.
-  state.input += '\0';
-
-  while (state.input.charCodeAt(state.position) === 0x20/* Space */) {
-    state.lineIndent += 1;
-    state.position += 1;
-  }
-
-  while (state.position < (state.length - 1)) {
-    readDocument(state);
-  }
-
-  return state.documents;
-}
-
-
-function loadAll(input, iterator, options) {
-  var documents = loadDocuments(input, options), index, length;
-
-  if (typeof iterator !== 'function') {
-    return documents;
-  }
-
-  for (index = 0, length = documents.length; index < length; index += 1) {
-    iterator(documents[index]);
-  }
-}
-
-
-function load(input, options) {
-  var documents = loadDocuments(input, options);
-
-  if (documents.length === 0) {
-    /*eslint-disable no-undefined*/
-    return undefined;
-  } else if (documents.length === 1) {
-    return documents[0];
-  }
-  throw new YAMLException('expected a single document in the stream, but found more');
-}
-
-
-function safeLoadAll(input, output, options) {
-  if (typeof output === 'function') {
-    loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
-  } else {
-    return loadAll(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
-  }
-}
-
-
-function safeLoad(input, options) {
-  return load(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
-}
-
-
-module.exports.loadAll     = loadAll;
-module.exports.load        = load;
-module.exports.safeLoadAll = safeLoadAll;
-module.exports.safeLoad    = safeLoad;
-
-
-/***/ }),
-/* 283 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-var common = __webpack_require__(43);
-
-
-function Mark(name, buffer, position, line, column) {
-  this.name     = name;
-  this.buffer   = buffer;
-  this.position = position;
-  this.line     = line;
-  this.column   = column;
-}
-
-
-Mark.prototype.getSnippet = function getSnippet(indent, maxLength) {
-  var head, start, tail, end, snippet;
-
-  if (!this.buffer) return null;
-
-  indent = indent || 4;
-  maxLength = maxLength || 75;
-
-  head = '';
-  start = this.position;
-
-  while (start > 0 && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(start - 1)) === -1) {
-    start -= 1;
-    if (this.position - start > (maxLength / 2 - 1)) {
-      head = ' ... ';
-      start += 5;
-      break;
-    }
-  }
-
-  tail = '';
-  end = this.position;
-
-  while (end < this.buffer.length && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(end)) === -1) {
-    end += 1;
-    if (end - this.position > (maxLength / 2 - 1)) {
-      tail = ' ... ';
-      end -= 5;
-      break;
-    }
-  }
-
-  snippet = this.buffer.slice(start, end);
-
-  return common.repeat(' ', indent) + head + snippet + tail + '\n' +
-         common.repeat(' ', indent + this.position - start + head.length) + '^';
-};
-
-
-Mark.prototype.toString = function toString(compact) {
-  var snippet, where = '';
-
-  if (this.name) {
-    where += 'in "' + this.name + '" ';
-  }
-
-  where += 'at line ' + (this.line + 1) + ', column ' + (this.column + 1);
-
-  if (!compact) {
-    snippet = this.getSnippet();
-
-    if (snippet) {
-      where += ':\n' + snippet;
-    }
-  }
-
-  return where;
-};
-
-
-module.exports = Mark;
-
-
-/***/ }),
-/* 284 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-var require;
-
-/*eslint-disable no-bitwise*/
-
-var NodeBuffer;
-
-try {
-  // A trick for browserified version, to not include `Buffer` shim
-  var _require = require;
-  NodeBuffer = __webpack_require__(64).Buffer;
-} catch (__) {}
-
-var Type       = __webpack_require__(10);
-
-
-// [ 64, 65, 66 ] -> [ padding, CR, LF ]
-var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
-
-
-function resolveYamlBinary(data) {
-  if (data === null) return false;
-
-  var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
-
-  // Convert one by one.
-  for (idx = 0; idx < max; idx++) {
-    code = map.indexOf(data.charAt(idx));
-
-    // Skip CR/LF
-    if (code > 64) continue;
-
-    // Fail on illegal characters
-    if (code < 0) return false;
-
-    bitlen += 6;
-  }
-
-  // If there are any bits left, source was corrupted
-  return (bitlen % 8) === 0;
-}
-
-function constructYamlBinary(data) {
-  var idx, tailbits,
-      input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
-      max = input.length,
-      map = BASE64_MAP,
-      bits = 0,
-      result = [];
-
-  // Collect by 6*4 bits (3 bytes)
-
-  for (idx = 0; idx < max; idx++) {
-    if ((idx % 4 === 0) && idx) {
-      result.push((bits >> 16) & 0xFF);
-      result.push((bits >> 8) & 0xFF);
-      result.push(bits & 0xFF);
-    }
-
-    bits = (bits << 6) | map.indexOf(input.charAt(idx));
-  }
-
-  // Dump tail
-
-  tailbits = (max % 4) * 6;
-
-  if (tailbits === 0) {
-    result.push((bits >> 16) & 0xFF);
-    result.push((bits >> 8) & 0xFF);
-    result.push(bits & 0xFF);
-  } else if (tailbits === 18) {
-    result.push((bits >> 10) & 0xFF);
-    result.push((bits >> 2) & 0xFF);
-  } else if (tailbits === 12) {
-    result.push((bits >> 4) & 0xFF);
-  }
-
-  // Wrap into Buffer for NodeJS and leave Array for browser
-  if (NodeBuffer) {
-    // Support node 6.+ Buffer API when available
-    return NodeBuffer.from ? NodeBuffer.from(result) : new NodeBuffer(result);
-  }
-
-  return result;
-}
-
-function representYamlBinary(object /*, style*/) {
-  var result = '', bits = 0, idx, tail,
-      max = object.length,
-      map = BASE64_MAP;
-
-  // Convert every three bytes to 4 ASCII characters.
-
-  for (idx = 0; idx < max; idx++) {
-    if ((idx % 3 === 0) && idx) {
-      result += map[(bits >> 18) & 0x3F];
-      result += map[(bits >> 12) & 0x3F];
-      result += map[(bits >> 6) & 0x3F];
-      result += map[bits & 0x3F];
-    }
-
-    bits = (bits << 8) + object[idx];
-  }
-
-  // Dump tail
-
-  tail = max % 3;
-
-  if (tail === 0) {
-    result += map[(bits >> 18) & 0x3F];
-    result += map[(bits >> 12) & 0x3F];
-    result += map[(bits >> 6) & 0x3F];
-    result += map[bits & 0x3F];
-  } else if (tail === 2) {
-    result += map[(bits >> 10) & 0x3F];
-    result += map[(bits >> 4) & 0x3F];
-    result += map[(bits << 2) & 0x3F];
-    result += map[64];
-  } else if (tail === 1) {
-    result += map[(bits >> 2) & 0x3F];
-    result += map[(bits << 4) & 0x3F];
-    result += map[64];
-    result += map[64];
-  }
-
-  return result;
-}
-
-function isBinary(object) {
-  return NodeBuffer && NodeBuffer.isBuffer(object);
-}
-
-module.exports = new Type('tag:yaml.org,2002:binary', {
-  kind: 'scalar',
-  resolve: resolveYamlBinary,
-  construct: constructYamlBinary,
-  predicate: isBinary,
-  represent: representYamlBinary
-});
-
-
-/***/ }),
-/* 285 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-function resolveYamlBoolean(data) {
-  if (data === null) return false;
-
-  var max = data.length;
-
-  return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
-         (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));
-}
-
-function constructYamlBoolean(data) {
-  return data === 'true' ||
-         data === 'True' ||
-         data === 'TRUE';
-}
-
-function isBoolean(object) {
-  return Object.prototype.toString.call(object) === '[object Boolean]';
-}
-
-module.exports = new Type('tag:yaml.org,2002:bool', {
-  kind: 'scalar',
-  resolve: resolveYamlBoolean,
-  construct: constructYamlBoolean,
-  predicate: isBoolean,
-  represent: {
-    lowercase: function (object) { return object ? 'true' : 'false'; },
-    uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
-    camelcase: function (object) { return object ? 'True' : 'False'; }
-  },
-  defaultStyle: 'lowercase'
-});
-
-
-/***/ }),
-/* 286 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var common = __webpack_require__(43);
-var Type   = __webpack_require__(10);
-
-var YAML_FLOAT_PATTERN = new RegExp(
-  // 2.5e4, 2.5 and integers
-  '^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
-  // .2e4, .2
-  // special case, seems not from spec
-  '|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
-  // 20:59
-  '|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[0-9_]*' +
-  // .inf
-  '|[-+]?\\.(?:inf|Inf|INF)' +
-  // .nan
-  '|\\.(?:nan|NaN|NAN))$');
-
-function resolveYamlFloat(data) {
-  if (data === null) return false;
-
-  if (!YAML_FLOAT_PATTERN.test(data) ||
-      // Quick hack to not allow integers end with `_`
-      // Probably should update regexp & check speed
-      data[data.length - 1] === '_') {
-    return false;
-  }
-
-  return true;
-}
-
-function constructYamlFloat(data) {
-  var value, sign, base, digits;
-
-  value  = data.replace(/_/g, '').toLowerCase();
-  sign   = value[0] === '-' ? -1 : 1;
-  digits = [];
-
-  if ('+-'.indexOf(value[0]) >= 0) {
-    value = value.slice(1);
-  }
-
-  if (value === '.inf') {
-    return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
-
-  } else if (value === '.nan') {
-    return NaN;
-
-  } else if (value.indexOf(':') >= 0) {
-    value.split(':').forEach(function (v) {
-      digits.unshift(parseFloat(v, 10));
-    });
-
-    value = 0.0;
-    base = 1;
-
-    digits.forEach(function (d) {
-      value += d * base;
-      base *= 60;
-    });
-
-    return sign * value;
-
-  }
-  return sign * parseFloat(value, 10);
-}
-
-
-var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
-
-function representYamlFloat(object, style) {
-  var res;
-
-  if (isNaN(object)) {
-    switch (style) {
-      case 'lowercase': return '.nan';
-      case 'uppercase': return '.NAN';
-      case 'camelcase': return '.NaN';
-    }
-  } else if (Number.POSITIVE_INFINITY === object) {
-    switch (style) {
-      case 'lowercase': return '.inf';
-      case 'uppercase': return '.INF';
-      case 'camelcase': return '.Inf';
-    }
-  } else if (Number.NEGATIVE_INFINITY === object) {
-    switch (style) {
-      case 'lowercase': return '-.inf';
-      case 'uppercase': return '-.INF';
-      case 'camelcase': return '-.Inf';
-    }
-  } else if (common.isNegativeZero(object)) {
-    return '-0.0';
-  }
-
-  res = object.toString(10);
-
-  // JS stringifier can build scientific format without dots: 5e-100,
-  // while YAML requres dot: 5.e-100. Fix it with simple hack
-
-  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
-}
-
-function isFloat(object) {
-  return (Object.prototype.toString.call(object) === '[object Number]') &&
-         (object % 1 !== 0 || common.isNegativeZero(object));
-}
-
-module.exports = new Type('tag:yaml.org,2002:float', {
-  kind: 'scalar',
-  resolve: resolveYamlFloat,
-  construct: constructYamlFloat,
-  predicate: isFloat,
-  represent: representYamlFloat,
-  defaultStyle: 'lowercase'
-});
-
-
-/***/ }),
-/* 287 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var common = __webpack_require__(43);
-var Type   = __webpack_require__(10);
-
-function isHexCode(c) {
-  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
-         ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
-         ((0x61/* a */ <= c) && (c <= 0x66/* f */));
-}
-
-function isOctCode(c) {
-  return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
-}
-
-function isDecCode(c) {
-  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
-}
-
-function resolveYamlInteger(data) {
-  if (data === null) return false;
-
-  var max = data.length,
-      index = 0,
-      hasDigits = false,
-      ch;
-
-  if (!max) return false;
-
-  ch = data[index];
-
-  // sign
-  if (ch === '-' || ch === '+') {
-    ch = data[++index];
-  }
-
-  if (ch === '0') {
-    // 0
-    if (index + 1 === max) return true;
-    ch = data[++index];
-
-    // base 2, base 8, base 16
-
-    if (ch === 'b') {
-      // base 2
-      index++;
-
-      for (; index < max; index++) {
-        ch = data[index];
-        if (ch === '_') continue;
-        if (ch !== '0' && ch !== '1') return false;
-        hasDigits = true;
-      }
-      return hasDigits && ch !== '_';
-    }
-
-
-    if (ch === 'x') {
-      // base 16
-      index++;
-
-      for (; index < max; index++) {
-        ch = data[index];
-        if (ch === '_') continue;
-        if (!isHexCode(data.charCodeAt(index))) return false;
-        hasDigits = true;
-      }
-      return hasDigits && ch !== '_';
-    }
-
-    // base 8
-    for (; index < max; index++) {
-      ch = data[index];
-      if (ch === '_') continue;
-      if (!isOctCode(data.charCodeAt(index))) return false;
-      hasDigits = true;
-    }
-    return hasDigits && ch !== '_';
-  }
-
-  // base 10 (except 0) or base 60
-
-  // value should not start with `_`;
-  if (ch === '_') return false;
-
-  for (; index < max; index++) {
-    ch = data[index];
-    if (ch === '_') continue;
-    if (ch === ':') break;
-    if (!isDecCode(data.charCodeAt(index))) {
-      return false;
-    }
-    hasDigits = true;
-  }
-
-  // Should have digits and should not end with `_`
-  if (!hasDigits || ch === '_') return false;
-
-  // if !base60 - done;
-  if (ch !== ':') return true;
-
-  // base60 almost not used, no needs to optimize
-  return /^(:[0-5]?[0-9])+$/.test(data.slice(index));
-}
-
-function constructYamlInteger(data) {
-  var value = data, sign = 1, ch, base, digits = [];
-
-  if (value.indexOf('_') !== -1) {
-    value = value.replace(/_/g, '');
-  }
-
-  ch = value[0];
-
-  if (ch === '-' || ch === '+') {
-    if (ch === '-') sign = -1;
-    value = value.slice(1);
-    ch = value[0];
-  }
-
-  if (value === '0') return 0;
-
-  if (ch === '0') {
-    if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
-    if (value[1] === 'x') return sign * parseInt(value, 16);
-    return sign * parseInt(value, 8);
-  }
-
-  if (value.indexOf(':') !== -1) {
-    value.split(':').forEach(function (v) {
-      digits.unshift(parseInt(v, 10));
-    });
-
-    value = 0;
-    base = 1;
-
-    digits.forEach(function (d) {
-      value += (d * base);
-      base *= 60;
-    });
-
-    return sign * value;
-
-  }
-
-  return sign * parseInt(value, 10);
-}
-
-function isInteger(object) {
-  return (Object.prototype.toString.call(object)) === '[object Number]' &&
-         (object % 1 === 0 && !common.isNegativeZero(object));
-}
-
-module.exports = new Type('tag:yaml.org,2002:int', {
-  kind: 'scalar',
-  resolve: resolveYamlInteger,
-  construct: constructYamlInteger,
-  predicate: isInteger,
-  represent: {
-    binary:      function (obj) { return obj >= 0 ? '0b' + obj.toString(2) : '-0b' + obj.toString(2).slice(1); },
-    octal:       function (obj) { return obj >= 0 ? '0'  + obj.toString(8) : '-0'  + obj.toString(8).slice(1); },
-    decimal:     function (obj) { return obj.toString(10); },
-    /* eslint-disable max-len */
-    hexadecimal: function (obj) { return obj >= 0 ? '0x' + obj.toString(16).toUpperCase() :  '-0x' + obj.toString(16).toUpperCase().slice(1); }
-  },
-  defaultStyle: 'decimal',
-  styleAliases: {
-    binary:      [ 2,  'bin' ],
-    octal:       [ 8,  'oct' ],
-    decimal:     [ 10, 'dec' ],
-    hexadecimal: [ 16, 'hex' ]
-  }
-});
-
-
-/***/ }),
-/* 288 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-var require;
-
-var esprima;
-
-// Browserified version does not have esprima
-//
-// 1. For node.js just require module as deps
-// 2. For browser try to require mudule via external AMD system.
-//    If not found - try to fallback to window.esprima. If not
-//    found too - then fail to parse.
-//
-try {
-  // workaround to exclude package from browserify list.
-  var _require = require;
-  esprima = __webpack_require__(268);
-} catch (_) {
-  /*global window */
-  if (typeof window !== 'undefined') esprima = window.esprima;
-}
-
-var Type = __webpack_require__(10);
-
-function resolveJavascriptFunction(data) {
-  if (data === null) return false;
-
-  try {
-    var source = '(' + data + ')',
-        ast    = esprima.parse(source, { range: true });
-
-    if (ast.type                    !== 'Program'             ||
-        ast.body.length             !== 1                     ||
-        ast.body[0].type            !== 'ExpressionStatement' ||
-        (ast.body[0].expression.type !== 'ArrowFunctionExpression' &&
-          ast.body[0].expression.type !== 'FunctionExpression')) {
-      return false;
-    }
-
-    return true;
-  } catch (err) {
-    return false;
-  }
-}
-
-function constructJavascriptFunction(data) {
-  /*jslint evil:true*/
-
-  var source = '(' + data + ')',
-      ast    = esprima.parse(source, { range: true }),
-      params = [],
-      body;
-
-  if (ast.type                    !== 'Program'             ||
-      ast.body.length             !== 1                     ||
-      ast.body[0].type            !== 'ExpressionStatement' ||
-      (ast.body[0].expression.type !== 'ArrowFunctionExpression' &&
-        ast.body[0].expression.type !== 'FunctionExpression')) {
-    throw new Error('Failed to resolve function');
-  }
-
-  ast.body[0].expression.params.forEach(function (param) {
-    params.push(param.name);
-  });
-
-  body = ast.body[0].expression.body.range;
-
-  // Esprima's ranges include the first '{' and the last '}' characters on
-  // function expressions. So cut them out.
-  if (ast.body[0].expression.body.type === 'BlockStatement') {
-    /*eslint-disable no-new-func*/
-    return new Function(params, source.slice(body[0] + 1, body[1] - 1));
-  }
-  // ES6 arrow functions can omit the BlockStatement. In that case, just return
-  // the body.
-  /*eslint-disable no-new-func*/
-  return new Function(params, 'return ' + source.slice(body[0], body[1]));
-}
-
-function representJavascriptFunction(object /*, style*/) {
-  return object.toString();
-}
-
-function isFunction(object) {
-  return Object.prototype.toString.call(object) === '[object Function]';
-}
-
-module.exports = new Type('tag:yaml.org,2002:js/function', {
-  kind: 'scalar',
-  resolve: resolveJavascriptFunction,
-  construct: constructJavascriptFunction,
-  predicate: isFunction,
-  represent: representJavascriptFunction
-});
-
-
-/***/ }),
-/* 289 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-function resolveJavascriptRegExp(data) {
-  if (data === null) return false;
-  if (data.length === 0) return false;
-
-  var regexp = data,
-      tail   = /\/([gim]*)$/.exec(data),
-      modifiers = '';
-
-  // if regexp starts with '/' it can have modifiers and must be properly closed
-  // `/foo/gim` - modifiers tail can be maximum 3 chars
-  if (regexp[0] === '/') {
-    if (tail) modifiers = tail[1];
-
-    if (modifiers.length > 3) return false;
-    // if expression starts with /, is should be properly terminated
-    if (regexp[regexp.length - modifiers.length - 1] !== '/') return false;
-  }
-
-  return true;
-}
-
-function constructJavascriptRegExp(data) {
-  var regexp = data,
-      tail   = /\/([gim]*)$/.exec(data),
-      modifiers = '';
-
-  // `/foo/gim` - tail can be maximum 4 chars
-  if (regexp[0] === '/') {
-    if (tail) modifiers = tail[1];
-    regexp = regexp.slice(1, regexp.length - modifiers.length - 1);
-  }
-
-  return new RegExp(regexp, modifiers);
-}
-
-function representJavascriptRegExp(object /*, style*/) {
-  var result = '/' + object.source + '/';
-
-  if (object.global) result += 'g';
-  if (object.multiline) result += 'm';
-  if (object.ignoreCase) result += 'i';
-
-  return result;
-}
-
-function isRegExp(object) {
-  return Object.prototype.toString.call(object) === '[object RegExp]';
-}
-
-module.exports = new Type('tag:yaml.org,2002:js/regexp', {
-  kind: 'scalar',
-  resolve: resolveJavascriptRegExp,
-  construct: constructJavascriptRegExp,
-  predicate: isRegExp,
-  represent: representJavascriptRegExp
-});
-
-
-/***/ }),
-/* 290 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-function resolveJavascriptUndefined() {
-  return true;
-}
-
-function constructJavascriptUndefined() {
-  /*eslint-disable no-undefined*/
-  return undefined;
-}
-
-function representJavascriptUndefined() {
-  return '';
-}
-
-function isUndefined(object) {
-  return typeof object === 'undefined';
-}
-
-module.exports = new Type('tag:yaml.org,2002:js/undefined', {
-  kind: 'scalar',
-  resolve: resolveJavascriptUndefined,
-  construct: constructJavascriptUndefined,
-  predicate: isUndefined,
-  represent: representJavascriptUndefined
-});
-
-
-/***/ }),
-/* 291 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-module.exports = new Type('tag:yaml.org,2002:map', {
-  kind: 'mapping',
-  construct: function (data) { return data !== null ? data : {}; }
-});
-
-
-/***/ }),
-/* 292 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-function resolveYamlMerge(data) {
-  return data === '<<' || data === null;
-}
-
-module.exports = new Type('tag:yaml.org,2002:merge', {
-  kind: 'scalar',
-  resolve: resolveYamlMerge
-});
-
-
-/***/ }),
-/* 293 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-function resolveYamlNull(data) {
-  if (data === null) return true;
-
-  var max = data.length;
-
-  return (max === 1 && data === '~') ||
-         (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
-}
-
-function constructYamlNull() {
-  return null;
-}
-
-function isNull(object) {
-  return object === null;
-}
-
-module.exports = new Type('tag:yaml.org,2002:null', {
-  kind: 'scalar',
-  resolve: resolveYamlNull,
-  construct: constructYamlNull,
-  predicate: isNull,
-  represent: {
-    canonical: function () { return '~';    },
-    lowercase: function () { return 'null'; },
-    uppercase: function () { return 'NULL'; },
-    camelcase: function () { return 'Null'; }
-  },
-  defaultStyle: 'lowercase'
-});
-
-
-/***/ }),
-/* 294 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-var _hasOwnProperty = Object.prototype.hasOwnProperty;
-var _toString       = Object.prototype.toString;
-
-function resolveYamlOmap(data) {
-  if (data === null) return true;
-
-  var objectKeys = [], index, length, pair, pairKey, pairHasKey,
-      object = data;
-
-  for (index = 0, length = object.length; index < length; index += 1) {
-    pair = object[index];
-    pairHasKey = false;
-
-    if (_toString.call(pair) !== '[object Object]') return false;
-
-    for (pairKey in pair) {
-      if (_hasOwnProperty.call(pair, pairKey)) {
-        if (!pairHasKey) pairHasKey = true;
-        else return false;
-      }
-    }
-
-    if (!pairHasKey) return false;
-
-    if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
-    else return false;
-  }
-
-  return true;
-}
-
-function constructYamlOmap(data) {
-  return data !== null ? data : [];
-}
-
-module.exports = new Type('tag:yaml.org,2002:omap', {
-  kind: 'sequence',
-  resolve: resolveYamlOmap,
-  construct: constructYamlOmap
-});
-
-
-/***/ }),
-/* 295 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-var _toString = Object.prototype.toString;
-
-function resolveYamlPairs(data) {
-  if (data === null) return true;
-
-  var index, length, pair, keys, result,
-      object = data;
-
-  result = new Array(object.length);
-
-  for (index = 0, length = object.length; index < length; index += 1) {
-    pair = object[index];
-
-    if (_toString.call(pair) !== '[object Object]') return false;
-
-    keys = Object.keys(pair);
-
-    if (keys.length !== 1) return false;
-
-    result[index] = [ keys[0], pair[keys[0]] ];
-  }
-
-  return true;
-}
-
-function constructYamlPairs(data) {
-  if (data === null) return [];
-
-  var index, length, pair, keys, result,
-      object = data;
-
-  result = new Array(object.length);
-
-  for (index = 0, length = object.length; index < length; index += 1) {
-    pair = object[index];
-
-    keys = Object.keys(pair);
-
-    result[index] = [ keys[0], pair[keys[0]] ];
-  }
-
-  return result;
-}
-
-module.exports = new Type('tag:yaml.org,2002:pairs', {
-  kind: 'sequence',
-  resolve: resolveYamlPairs,
-  construct: constructYamlPairs
-});
-
-
-/***/ }),
-/* 296 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-module.exports = new Type('tag:yaml.org,2002:seq', {
-  kind: 'sequence',
-  construct: function (data) { return data !== null ? data : []; }
-});
-
-
-/***/ }),
-/* 297 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-var _hasOwnProperty = Object.prototype.hasOwnProperty;
-
-function resolveYamlSet(data) {
-  if (data === null) return true;
-
-  var key, object = data;
-
-  for (key in object) {
-    if (_hasOwnProperty.call(object, key)) {
-      if (object[key] !== null) return false;
-    }
-  }
-
-  return true;
-}
-
-function constructYamlSet(data) {
-  return data !== null ? data : {};
-}
-
-module.exports = new Type('tag:yaml.org,2002:set', {
-  kind: 'mapping',
-  resolve: resolveYamlSet,
-  construct: constructYamlSet
-});
-
-
-/***/ }),
-/* 298 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-module.exports = new Type('tag:yaml.org,2002:str', {
-  kind: 'scalar',
-  construct: function (data) { return data !== null ? data : ''; }
-});
-
-
-/***/ }),
-/* 299 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Type = __webpack_require__(10);
-
-var YAML_DATE_REGEXP = new RegExp(
-  '^([0-9][0-9][0-9][0-9])'          + // [1] year
-  '-([0-9][0-9])'                    + // [2] month
-  '-([0-9][0-9])$');                   // [3] day
-
-var YAML_TIMESTAMP_REGEXP = new RegExp(
-  '^([0-9][0-9][0-9][0-9])'          + // [1] year
-  '-([0-9][0-9]?)'                   + // [2] month
-  '-([0-9][0-9]?)'                   + // [3] day
-  '(?:[Tt]|[ \\t]+)'                 + // ...
-  '([0-9][0-9]?)'                    + // [4] hour
-  ':([0-9][0-9])'                    + // [5] minute
-  ':([0-9][0-9])'                    + // [6] second
-  '(?:\\.([0-9]*))?'                 + // [7] fraction
-  '(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
-  '(?::([0-9][0-9]))?))?$');           // [11] tz_minute
-
-function resolveYamlTimestamp(data) {
-  if (data === null) return false;
-  if (YAML_DATE_REGEXP.exec(data) !== null) return true;
-  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
-  return false;
-}
-
-function constructYamlTimestamp(data) {
-  var match, year, month, day, hour, minute, second, fraction = 0,
-      delta = null, tz_hour, tz_minute, date;
-
-  match = YAML_DATE_REGEXP.exec(data);
-  if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
-
-  if (match === null) throw new Error('Date resolve error');
-
-  // match: [1] year [2] month [3] day
-
-  year = +(match[1]);
-  month = +(match[2]) - 1; // JS month starts with 0
-  day = +(match[3]);
-
-  if (!match[4]) { // no hour
-    return new Date(Date.UTC(year, month, day));
-  }
-
-  // match: [4] hour [5] minute [6] second [7] fraction
-
-  hour = +(match[4]);
-  minute = +(match[5]);
-  second = +(match[6]);
-
-  if (match[7]) {
-    fraction = match[7].slice(0, 3);
-    while (fraction.length < 3) { // milli-seconds
-      fraction += '0';
-    }
-    fraction = +fraction;
-  }
-
-  // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
-
-  if (match[9]) {
-    tz_hour = +(match[10]);
-    tz_minute = +(match[11] || 0);
-    delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
-    if (match[9] === '-') delta = -delta;
-  }
-
-  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
-
-  if (delta) date.setTime(date.getTime() - delta);
-
-  return date;
-}
-
-function representYamlTimestamp(object /*, style*/) {
-  return object.toISOString();
-}
-
-module.exports = new Type('tag:yaml.org,2002:timestamp', {
-  kind: 'scalar',
-  resolve: resolveYamlTimestamp,
-  construct: constructYamlTimestamp,
-  instanceOf: Date,
-  represent: representYamlTimestamp
-});
-
-
-/***/ }),
-/* 300 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var win32 = process && process.platform === 'win32';
-var path = __webpack_require__(0);
-var fileRe = __webpack_require__(646);
-var utils = module.exports;
-
-/**
- * Module dependencies
- */
-
-utils.diff = __webpack_require__(755);
-utils.unique = __webpack_require__(756);
-utils.braces = __webpack_require__(757);
-utils.brackets = __webpack_require__(639);
-utils.extglob = __webpack_require__(644);
-utils.isExtglob = __webpack_require__(177);
-utils.isGlob = __webpack_require__(178);
-utils.typeOf = __webpack_require__(179);
-utils.normalize = __webpack_require__(765);
-utils.omit = __webpack_require__(769);
-utils.parseGlob = __webpack_require__(773);
-utils.cache = __webpack_require__(795);
-
-/**
- * Get the filename of a filepath
- *
- * @param {String} `string`
- * @return {String}
- */
-
-utils.filename = function filename(fp) {
-  var seg = fp.match(fileRe());
-  return seg && seg[0];
-};
-
-/**
- * Returns a function that returns true if the given
- * pattern is the same as a given `filepath`
- *
- * @param {String} `pattern`
- * @return {Function}
- */
-
-utils.isPath = function isPath(pattern, opts) {
-  opts = opts || {};
-  return function(fp) {
-    var unixified = utils.unixify(fp, opts);
-    if(opts.nocase){
-      return pattern.toLowerCase() === unixified.toLowerCase();
-    }
-    return pattern === unixified;
-  };
-};
-
-/**
- * Returns a function that returns true if the given
- * pattern contains a `filepath`
- *
- * @param {String} `pattern`
- * @return {Function}
- */
-
-utils.hasPath = function hasPath(pattern, opts) {
-  return function(fp) {
-    return utils.unixify(pattern, opts).indexOf(fp) !== -1;
-  };
-};
-
-/**
- * Returns a function that returns true if the given
- * pattern matches or contains a `filepath`
- *
- * @param {String} `pattern`
- * @return {Function}
- */
-
-utils.matchPath = function matchPath(pattern, opts) {
-  var fn = (opts && opts.contains)
-    ? utils.hasPath(pattern, opts)
-    : utils.isPath(pattern, opts);
-  return fn;
-};
-
-/**
- * Returns a function that returns true if the given
- * regex matches the `filename` of a file path.
- *
- * @param {RegExp} `re`
- * @return {Boolean}
- */
-
-utils.hasFilename = function hasFilename(re) {
-  return function(fp) {
-    var name = utils.filename(fp);
-    return name && re.test(name);
-  };
-};
-
-/**
- * Coerce `val` to an array
- *
- * @param  {*} val
- * @return {Array}
- */
-
-utils.arrayify = function arrayify(val) {
-  return !Array.isArray(val)
-    ? [val]
-    : val;
-};
-
-/**
- * Normalize all slashes in a file path or glob pattern to
- * forward slashes.
- */
-
-utils.unixify = function unixify(fp, opts) {
-  if (opts && opts.unixify === false) return fp;
-  if (opts && opts.unixify === true || win32 || path.sep === '\\') {
-    return utils.normalize(fp, false);
-  }
-  if (opts && opts.unescape === true) {
-    return fp ? fp.toString().replace(/\\(\w)/g, '$1') : '';
-  }
-  return fp;
-};
-
-/**
- * Escape/unescape utils
- */
-
-utils.escapePath = function escapePath(fp) {
-  return fp.replace(/[\\.]/g, '\\$&');
-};
-
-utils.unescapeGlob = function unescapeGlob(fp) {
-  return fp.replace(/[\\"']/g, '');
-};
-
-utils.escapeRe = function escapeRe(str) {
-  return str.replace(/[-[\\$*+?.#^\s{}(|)\]]/g, '\\$&');
-};
-
-/**
- * Expose `utils`
- */
-
-module.exports = utils;
-
-
-/***/ }),
-/* 301 */
-/***/ (function(module, exports) {
-
-/**
- * Helpers.
- */
-
-var s = 1000;
-var m = s * 60;
-var h = m * 60;
-var d = h * 24;
-var y = d * 365.25;
-
-/**
- * Parse or format the given `val`.
- *
- * Options:
- *
- *  - `long` verbose formatting [false]
- *
- * @param {String|Number} val
- * @param {Object} [options]
- * @throws {Error} throw an error if val is not a non-empty string or a number
- * @return {String|Number}
- * @api public
- */
-
-module.exports = function(val, options) {
-  options = options || {};
-  var type = typeof val;
-  if (type === 'string' && val.length > 0) {
-    return parse(val);
-  } else if (type === 'number' && isNaN(val) === false) {
-    return options.long ? fmtLong(val) : fmtShort(val);
-  }
-  throw new Error(
-    'val is not a non-empty string or a valid number. val=' +
-      JSON.stringify(val)
-  );
-};
-
-/**
- * Parse the given `str` and return milliseconds.
- *
- * @param {String} str
- * @return {Number}
- * @api private
- */
-
-function parse(str) {
-  str = String(str);
-  if (str.length > 100) {
-    return;
-  }
-  var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
-    str
-  );
-  if (!match) {
-    return;
-  }
-  var n = parseFloat(match[1]);
-  var type = (match[2] || 'ms').toLowerCase();
-  switch (type) {
-    case 'years':
-    case 'year':
-    case 'yrs':
-    case 'yr':
-    case 'y':
-      return n * y;
-    case 'days':
-    case 'day':
-    case 'd':
-      return n * d;
-    case 'hours':
-    case 'hour':
-    case 'hrs':
-    case 'hr':
-    case 'h':
-      return n * h;
-    case 'minutes':
-    case 'minute':
-    case 'mins':
-    case 'min':
-    case 'm':
-      return n * m;
-    case 'seconds':
-    case 'second':
-    case 'secs':
-    case 'sec':
-    case 's':
-      return n * s;
-    case 'milliseconds':
-    case 'millisecond':
-    case 'msecs':
-    case 'msec':
-    case 'ms':
-      return n;
-    default:
-      return undefined;
-  }
-}
-
-/**
- * Short format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtShort(ms) {
-  if (ms >= d) {
-    return Math.round(ms / d) + 'd';
-  }
-  if (ms >= h) {
-    return Math.round(ms / h) + 'h';
-  }
-  if (ms >= m) {
-    return Math.round(ms / m) + 'm';
-  }
-  if (ms >= s) {
-    return Math.round(ms / s) + 's';
-  }
-  return ms + 'ms';
-}
-
-/**
- * Long format for `ms`.
- *
- * @param {Number} ms
- * @return {String}
- * @api private
- */
-
-function fmtLong(ms) {
-  return plural(ms, d, 'day') ||
-    plural(ms, h, 'hour') ||
-    plural(ms, m, 'minute') ||
-    plural(ms, s, 'second') ||
-    ms + ' ms';
-}
-
-/**
- * Pluralization helper.
- */
-
-function plural(ms, n, name) {
-  if (ms < n) {
-    return;
-  }
-  if (ms < n * 1.5) {
-    return Math.floor(ms / n) + ' ' + name;
-  }
-  return Math.ceil(ms / n) + ' ' + name + 's';
-}
-
-
-/***/ }),
-/* 302 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(763);
-
-/***/ }),
-/* 303 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*
-object-assign
-(c) Sindre Sorhus
-@license MIT
-*/
-
-
-/* eslint-disable no-unused-vars */
-var getOwnPropertySymbols = Object.getOwnPropertySymbols;
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-var propIsEnumerable = Object.prototype.propertyIsEnumerable;
-
-function toObject(val) {
-	if (val === null || val === undefined) {
-		throw new TypeError('Object.assign cannot be called with null or undefined');
-	}
-
-	return Object(val);
-}
-
-function shouldUseNative() {
-	try {
-		if (!Object.assign) {
-			return false;
-		}
-
-		// Detect buggy property enumeration order in older V8 versions.
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=4118
-		var test1 = new String('abc');  // eslint-disable-line no-new-wrappers
-		test1[5] = 'de';
-		if (Object.getOwnPropertyNames(test1)[0] === '5') {
-			return false;
-		}
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
-		var test2 = {};
-		for (var i = 0; i < 10; i++) {
-			test2['_' + String.fromCharCode(i)] = i;
-		}
-		var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
-			return test2[n];
-		});
-		if (order2.join('') !== '0123456789') {
-			return false;
-		}
-
-		// https://bugs.chromium.org/p/v8/issues/detail?id=3056
-		var test3 = {};
-		'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
-			test3[letter] = letter;
-		});
-		if (Object.keys(Object.assign({}, test3)).join('') !==
-				'abcdefghijklmnopqrst') {
-			return false;
-		}
-
-		return true;
-	} catch (err) {
-		// We don't expect any of the above to throw, but better to be safe.
-		return false;
-	}
-}
-
-module.exports = shouldUseNative() ? Object.assign : function (target, source) {
-	var from;
-	var to = toObject(target);
-	var symbols;
-
-	for (var s = 1; s < arguments.length; s++) {
-		from = Object(arguments[s]);
-
-		for (var key in from) {
-			if (hasOwnProperty.call(from, key)) {
-				to[key] = from[key];
-			}
-		}
-
-		if (getOwnPropertySymbols) {
-			symbols = getOwnPropertySymbols(from);
-			for (var i = 0; i < symbols.length; i++) {
-				if (propIsEnumerable.call(from, symbols[i])) {
-					to[symbols[i]] = from[symbols[i]];
-				}
-			}
-		}
-	}
-
-	return to;
-};
-
-
-/***/ }),
-/* 304 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;(function (root, factory){
-  'use strict';
-
-  /*istanbul ignore next:cant test*/
-  if (typeof module === 'object' && typeof module.exports === 'object') {
-    module.exports = factory();
-  } else if (true) {
-    // AMD. Register as an anonymous module.
-    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
-				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
-				(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
-				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-  } else {
-    // Browser globals
-    root.objectPath = factory();
-  }
-})(this, function(){
-  'use strict';
-
-  var toStr = Object.prototype.toString;
-  function hasOwnProperty(obj, prop) {
-    if(obj == null) {
-      return false
-    }
-    //to handle objects with null prototypes (too edge case?)
-    return Object.prototype.hasOwnProperty.call(obj, prop)
-  }
-
-  function isEmpty(value){
-    if (!value) {
-      return true;
-    }
-    if (isArray(value) && value.length === 0) {
-        return true;
-    } else if (typeof value !== 'string') {
-        for (var i in value) {
-            if (hasOwnProperty(value, i)) {
-                return false;
-            }
-        }
-        return true;
-    }
-    return false;
-  }
-
-  function toString(type){
-    return toStr.call(type);
-  }
-
-  function isObject(obj){
-    return typeof obj === 'object' && toString(obj) === "[object Object]";
-  }
-
-  var isArray = Array.isArray || function(obj){
-    /*istanbul ignore next:cant test*/
-    return toStr.call(obj) === '[object Array]';
-  }
-
-  function isBoolean(obj){
-    return typeof obj === 'boolean' || toString(obj) === '[object Boolean]';
-  }
-
-  function getKey(key){
-    var intKey = parseInt(key);
-    if (intKey.toString() === key) {
-      return intKey;
-    }
-    return key;
-  }
-
-  function factory(options) {
-    options = options || {}
-
-    var objectPath = function(obj) {
-      return Object.keys(objectPath).reduce(function(proxy, prop) {
-        if(prop === 'create') {
-          return proxy;
-        }
-
-        /*istanbul ignore else*/
-        if (typeof objectPath[prop] === 'function') {
-          proxy[prop] = objectPath[prop].bind(objectPath, obj);
-        }
-
-        return proxy;
-      }, {});
-    };
-
-    function hasShallowProperty(obj, prop) {
-      return (options.includeInheritedProps || (typeof prop === 'number' && Array.isArray(obj)) || hasOwnProperty(obj, prop))
-    }
-
-    function getShallowProperty(obj, prop) {
-      if (hasShallowProperty(obj, prop)) {
-        return obj[prop];
-      }
-    }
-
-    function set(obj, path, value, doNotReplace){
-      if (typeof path === 'number') {
-        path = [path];
-      }
-      if (!path || path.length === 0) {
-        return obj;
-      }
-      if (typeof path === 'string') {
-        return set(obj, path.split('.').map(getKey), value, doNotReplace);
-      }
-      var currentPath = path[0];
-      var currentValue = getShallowProperty(obj, currentPath);
-      if (path.length === 1) {
-        if (currentValue === void 0 || !doNotReplace) {
-          obj[currentPath] = value;
-        }
-        return currentValue;
-      }
-
-      if (currentValue === void 0) {
-        //check if we assume an array
-        if(typeof path[1] === 'number') {
-          obj[currentPath] = [];
-        } else {
-          obj[currentPath] = {};
-        }
-      }
-
-      return set(obj[currentPath], path.slice(1), value, doNotReplace);
-    }
-
-    objectPath.has = function (obj, path) {
-      if (typeof path === 'number') {
-        path = [path];
-      } else if (typeof path === 'string') {
-        path = path.split('.');
-      }
-
-      if (!path || path.length === 0) {
-        return !!obj;
-      }
-
-      for (var i = 0; i < path.length; i++) {
-        var j = getKey(path[i]);
-
-        if((typeof j === 'number' && isArray(obj) && j < obj.length) ||
-          (options.includeInheritedProps ? (j in Object(obj)) : hasOwnProperty(obj, j))) {
-          obj = obj[j];
-        } else {
-          return false;
-        }
-      }
-
-      return true;
-    };
-
-    objectPath.ensureExists = function (obj, path, value){
-      return set(obj, path, value, true);
-    };
-
-    objectPath.set = function (obj, path, value, doNotReplace){
-      return set(obj, path, value, doNotReplace);
-    };
-
-    objectPath.insert = function (obj, path, value, at){
-      var arr = objectPath.get(obj, path);
-      at = ~~at;
-      if (!isArray(arr)) {
-        arr = [];
-        objectPath.set(obj, path, arr);
-      }
-      arr.splice(at, 0, value);
-    };
-
-    objectPath.empty = function(obj, path) {
-      if (isEmpty(path)) {
-        return void 0;
-      }
-      if (obj == null) {
-        return void 0;
-      }
-
-      var value, i;
-      if (!(value = objectPath.get(obj, path))) {
-        return void 0;
-      }
-
-      if (typeof value === 'string') {
-        return objectPath.set(obj, path, '');
-      } else if (isBoolean(value)) {
-        return objectPath.set(obj, path, false);
-      } else if (typeof value === 'number') {
-        return objectPath.set(obj, path, 0);
-      } else if (isArray(value)) {
-        value.length = 0;
-      } else if (isObject(value)) {
-        for (i in value) {
-          if (hasShallowProperty(value, i)) {
-            delete value[i];
-          }
-        }
-      } else {
-        return objectPath.set(obj, path, null);
-      }
-    };
-
-    objectPath.push = function (obj, path /*, values */){
-      var arr = objectPath.get(obj, path);
-      if (!isArray(arr)) {
-        arr = [];
-        objectPath.set(obj, path, arr);
-      }
-
-      arr.push.apply(arr, Array.prototype.slice.call(arguments, 2));
-    };
-
-    objectPath.coalesce = function (obj, paths, defaultValue) {
-      var value;
-
-      for (var i = 0, len = paths.length; i < len; i++) {
-        if ((value = objectPath.get(obj, paths[i])) !== void 0) {
-          return value;
-        }
-      }
-
-      return defaultValue;
-    };
-
-    objectPath.get = function (obj, path, defaultValue){
-      if (typeof path === 'number') {
-        path = [path];
-      }
-      if (!path || path.length === 0) {
-        return obj;
-      }
-      if (obj == null) {
-        return defaultValue;
-      }
-      if (typeof path === 'string') {
-        return objectPath.get(obj, path.split('.'), defaultValue);
-      }
-
-      var currentPath = getKey(path[0]);
-      var nextObj = getShallowProperty(obj, currentPath)
-      if (nextObj === void 0) {
-        return defaultValue;
-      }
-
-      if (path.length === 1) {
-        return nextObj;
-      }
-
-      return objectPath.get(obj[currentPath], path.slice(1), defaultValue);
-    };
-
-    objectPath.del = function del(obj, path) {
-      if (typeof path === 'number') {
-        path = [path];
-      }
-
-      if (obj == null) {
-        return obj;
-      }
-
-      if (isEmpty(path)) {
-        return obj;
-      }
-      if(typeof path === 'string') {
-        return objectPath.del(obj, path.split('.'));
-      }
-
-      var currentPath = getKey(path[0]);
-      if (!hasShallowProperty(obj, currentPath)) {
-        return obj;
-      }
-
-      if(path.length === 1) {
-        if (isArray(obj)) {
-          obj.splice(currentPath, 1);
-        } else {
-          delete obj[currentPath];
-        }
-      } else {
-        return objectPath.del(obj[currentPath], path.slice(1));
-      }
-
-      return obj;
-    }
-
-    return objectPath;
-  }
-
-  var mod = factory();
-  mod.create = factory;
-  mod.withInheritedProps = factory({includeInheritedProps: true})
-  return mod;
-});
-
-
-/***/ }),
-/* 305 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var jsonSafeStringify = __webpack_require__(745)
-var crypto = __webpack_require__(11)
-var Buffer = __webpack_require__(45).Buffer
-
-var defer = typeof setImmediate === 'undefined'
-  ? process.nextTick
-  : setImmediate
-
-function paramsHaveRequestBody (params) {
-  return (
-    params.body ||
-    params.requestBodyStream ||
-    (params.json && typeof params.json !== 'boolean') ||
-    params.multipart
-  )
-}
-
-function safeStringify (obj, replacer) {
-  var ret
-  try {
-    ret = JSON.stringify(obj, replacer)
-  } catch (e) {
-    ret = jsonSafeStringify(obj, replacer)
-  }
-  return ret
-}
-
-function md5 (str) {
-  return crypto.createHash('md5').update(str).digest('hex')
-}
-
-function isReadStream (rs) {
-  return rs.readable && rs.path && rs.mode
-}
-
-function toBase64 (str) {
-  return Buffer.from(str || '', 'utf8').toString('base64')
-}
-
-function copy (obj) {
-  var o = {}
-  Object.keys(obj).forEach(function (i) {
-    o[i] = obj[i]
-  })
-  return o
-}
-
-function version () {
-  var numbers = process.version.replace('v', '').split('.')
-  return {
-    major: parseInt(numbers[0], 10),
-    minor: parseInt(numbers[1], 10),
-    patch: parseInt(numbers[2], 10)
-  }
-}
-
-exports.paramsHaveRequestBody = paramsHaveRequestBody
-exports.safeStringify = safeStringify
-exports.md5 = md5
-exports.isReadStream = isReadStream
-exports.toBase64 = toBase64
-exports.copy = copy
-exports.version = version
-exports.defer = defer
-
-
-/***/ }),
-/* 306 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var current = (process.versions && process.versions.node && process.versions.node.split('.')) || [];
-
-function specifierIncluded(specifier) {
-    var parts = specifier.split(' ');
-    var op = parts.length > 1 ? parts[0] : '=';
-    var versionParts = (parts.length > 1 ? parts[1] : parts[0]).split('.');
-
-    for (var i = 0; i < 3; ++i) {
-        var cur = Number(current[i] || 0);
-        var ver = Number(versionParts[i] || 0);
-        if (cur === ver) {
-            continue; // eslint-disable-line no-restricted-syntax, no-continue
-        }
-        if (op === '<') {
-            return cur < ver;
-        } else if (op === '>=') {
-            return cur >= ver;
-        } else {
-            return false;
-        }
-    }
-    return op === '>=';
-}
-
-function matchesRange(range) {
-    var specifiers = range.split(/ ?&& ?/);
-    if (specifiers.length === 0) { return false; }
-    for (var i = 0; i < specifiers.length; ++i) {
-        if (!specifierIncluded(specifiers[i])) { return false; }
-    }
-    return true;
-}
-
-function versionIncluded(specifierValue) {
-    if (typeof specifierValue === 'boolean') { return specifierValue; }
-    if (specifierValue && typeof specifierValue === 'object') {
-        for (var i = 0; i < specifierValue.length; ++i) {
-            if (matchesRange(specifierValue[i])) { return true; }
-        }
-        return false;
-    }
-    return matchesRange(specifierValue);
-}
-
-var data = __webpack_require__(816);
-
-var core = {};
-for (var mod in data) { // eslint-disable-line no-restricted-syntax
-    if (Object.prototype.hasOwnProperty.call(data, mod)) {
-        core[mod] = versionIncluded(data[mod]);
-    }
-}
-module.exports = core;
-
-
-/***/ }),
-/* 307 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = rimraf
-rimraf.sync = rimrafSync
-
-var assert = __webpack_require__(28)
-var path = __webpack_require__(0)
-var fs = __webpack_require__(5)
-var glob = __webpack_require__(99)
-var _0666 = parseInt('666', 8)
-
-var defaultGlobOpts = {
-  nosort: true,
-  silent: true
-}
-
-// for EMFILE handling
-var timeout = 0
-
-var isWindows = (process.platform === "win32")
-
-function defaults (options) {
-  var methods = [
-    'unlink',
-    'chmod',
-    'stat',
-    'lstat',
-    'rmdir',
-    'readdir'
-  ]
-  methods.forEach(function(m) {
-    options[m] = options[m] || fs[m]
-    m = m + 'Sync'
-    options[m] = options[m] || fs[m]
-  })
-
-  options.maxBusyTries = options.maxBusyTries || 3
-  options.emfileWait = options.emfileWait || 1000
-  if (options.glob === false) {
-    options.disableGlob = true
-  }
-  options.disableGlob = options.disableGlob || false
-  options.glob = options.glob || defaultGlobOpts
-}
-
-function rimraf (p, options, cb) {
-  if (typeof options === 'function') {
-    cb = options
-    options = {}
-  }
-
-  assert(p, 'rimraf: missing path')
-  assert.equal(typeof p, 'string', 'rimraf: path should be a string')
-  assert.equal(typeof cb, 'function', 'rimraf: callback function required')
-  assert(options, 'rimraf: invalid options argument provided')
-  assert.equal(typeof options, 'object', 'rimraf: options should be object')
-
-  defaults(options)
-
-  var busyTries = 0
-  var errState = null
-  var n = 0
-
-  if (options.disableGlob || !glob.hasMagic(p))
-    return afterGlob(null, [p])
-
-  options.lstat(p, function (er, stat) {
-    if (!er)
-      return afterGlob(null, [p])
-
-    glob(p, options.glob, afterGlob)
-  })
-
-  function next (er) {
-    errState = errState || er
-    if (--n === 0)
-      cb(errState)
-  }
-
-  function afterGlob (er, results) {
-    if (er)
-      return cb(er)
-
-    n = results.length
-    if (n === 0)
-      return cb()
-
-    results.forEach(function (p) {
-      rimraf_(p, options, function CB (er) {
-        if (er) {
-          if ((er.code === "EBUSY" || er.code === "ENOTEMPTY" || er.code === "EPERM") &&
-              busyTries < options.maxBusyTries) {
-            busyTries ++
-            var time = busyTries * 100
-            // try again, with the same exact callback as this one.
-            return setTimeout(function () {
-              rimraf_(p, options, CB)
-            }, time)
-          }
-
-          // this one won't happen if graceful-fs is used.
-          if (er.code === "EMFILE" && timeout < options.emfileWait) {
-            return setTimeout(function () {
-              rimraf_(p, options, CB)
-            }, timeout ++)
-          }
-
-          // already gone
-          if (er.code === "ENOENT") er = null
-        }
-
-        timeout = 0
-        next(er)
-      })
-    })
-  }
-}
-
-// Two possible strategies.
-// 1. Assume it's a file.  unlink it, then do the dir stuff on EPERM or EISDIR
-// 2. Assume it's a directory.  readdir, then do the file stuff on ENOTDIR
-//
-// Both result in an extra syscall when you guess wrong.  However, there
-// are likely far more normal files in the world than directories.  This
-// is based on the assumption that a the average number of files per
-// directory is >= 1.
-//
-// If anyone ever complains about this, then I guess the strategy could
-// be made configurable somehow.  But until then, YAGNI.
-function rimraf_ (p, options, cb) {
-  assert(p)
-  assert(options)
-  assert(typeof cb === 'function')
-
-  // sunos lets the root user unlink directories, which is... weird.
-  // so we have to lstat here and make sure it's not a dir.
-  options.lstat(p, function (er, st) {
-    if (er && er.code === "ENOENT")
-      return cb(null)
-
-    // Windows can EPERM on stat.  Life is suffering.
-    if (er && er.code === "EPERM" && isWindows)
-      fixWinEPERM(p, options, er, cb)
-
-    if (st && st.isDirectory())
-      return rmdir(p, options, er, cb)
-
-    options.unlink(p, function (er) {
-      if (er) {
-        if (er.code === "ENOENT")
-          return cb(null)
-        if (er.code === "EPERM")
-          return (isWindows)
-            ? fixWinEPERM(p, options, er, cb)
-            : rmdir(p, options, er, cb)
-        if (er.code === "EISDIR")
-          return rmdir(p, options, er, cb)
-      }
-      return cb(er)
-    })
-  })
-}
-
-function fixWinEPERM (p, options, er, cb) {
-  assert(p)
-  assert(options)
-  assert(typeof cb === 'function')
-  if (er)
-    assert(er instanceof Error)
-
-  options.chmod(p, _0666, function (er2) {
-    if (er2)
-      cb(er2.code === "ENOENT" ? null : er)
-    else
-      options.stat(p, function(er3, stats) {
-        if (er3)
-          cb(er3.code === "ENOENT" ? null : er)
-        else if (stats.isDirectory())
-          rmdir(p, options, er, cb)
-        else
-          options.unlink(p, cb)
-      })
-  })
-}
-
-function fixWinEPERMSync (p, options, er) {
-  assert(p)
-  assert(options)
-  if (er)
-    assert(er instanceof Error)
-
-  try {
-    options.chmodSync(p, _0666)
-  } catch (er2) {
-    if (er2.code === "ENOENT")
-      return
-    else
-      throw er
-  }
-
-  try {
-    var stats = options.statSync(p)
-  } catch (er3) {
-    if (er3.code === "ENOENT")
-      return
-    else
-      throw er
-  }
-
-  if (stats.isDirectory())
-    rmdirSync(p, options, er)
-  else
-    options.unlinkSync(p)
-}
-
-function rmdir (p, options, originalEr, cb) {
-  assert(p)
-  assert(options)
-  if (originalEr)
-    assert(originalEr instanceof Error)
-  assert(typeof cb === 'function')
-
-  // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
-  // if we guessed wrong, and it's not a directory, then
-  // raise the original error.
-  options.rmdir(p, function (er) {
-    if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
-      rmkids(p, options, cb)
-    else if (er && er.code === "ENOTDIR")
-      cb(originalEr)
-    else
-      cb(er)
-  })
-}
-
-function rmkids(p, options, cb) {
-  assert(p)
-  assert(options)
-  assert(typeof cb === 'function')
-
-  options.readdir(p, function (er, files) {
-    if (er)
-      return cb(er)
-    var n = files.length
-    if (n === 0)
-      return options.rmdir(p, cb)
-    var errState
-    files.forEach(function (f) {
-      rimraf(path.join(p, f), options, function (er) {
-        if (errState)
-          return
-        if (er)
-          return cb(errState = er)
-        if (--n === 0)
-          options.rmdir(p, cb)
-      })
-    })
-  })
-}
-
-// this looks simpler, and is strictly *faster*, but will
-// tie up the JavaScript thread and fail on excessively
-// deep directory trees.
-function rimrafSync (p, options) {
-  options = options || {}
-  defaults(options)
-
-  assert(p, 'rimraf: missing path')
-  assert.equal(typeof p, 'string', 'rimraf: path should be a string')
-  assert(options, 'rimraf: missing options')
-  assert.equal(typeof options, 'object', 'rimraf: options should be object')
-
-  var results
-
-  if (options.disableGlob || !glob.hasMagic(p)) {
-    results = [p]
-  } else {
-    try {
-      options.lstatSync(p)
-      results = [p]
-    } catch (er) {
-      results = glob.sync(p, options.glob)
-    }
-  }
-
-  if (!results.length)
-    return
-
-  for (var i = 0; i < results.length; i++) {
-    var p = results[i]
-
-    try {
-      var st = options.lstatSync(p)
-    } catch (er) {
-      if (er.code === "ENOENT")
-        return
-
-      // Windows can EPERM on stat.  Life is suffering.
-      if (er.code === "EPERM" && isWindows)
-        fixWinEPERMSync(p, options, er)
-    }
-
-    try {
-      // sunos lets the root user unlink directories, which is... weird.
-      if (st && st.isDirectory())
-        rmdirSync(p, options, null)
-      else
-        options.unlinkSync(p)
-    } catch (er) {
-      if (er.code === "ENOENT")
-        return
-      if (er.code === "EPERM")
-        return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
-      if (er.code !== "EISDIR")
-        throw er
-
-      rmdirSync(p, options, er)
-    }
-  }
-}
-
-function rmdirSync (p, options, originalEr) {
-  assert(p)
-  assert(options)
-  if (originalEr)
-    assert(originalEr instanceof Error)
-
-  try {
-    options.rmdirSync(p)
-  } catch (er) {
-    if (er.code === "ENOENT")
-      return
-    if (er.code === "ENOTDIR")
-      throw originalEr
-    if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
-      rmkidsSync(p, options)
-  }
-}
-
-function rmkidsSync (p, options) {
-  assert(p)
-  assert(options)
-  options.readdirSync(p).forEach(function (f) {
-    rimrafSync(path.join(p, f), options)
-  })
-
-  // We only end up here once we got ENOTEMPTY at least once, and
-  // at this point, we are guaranteed to have removed all the kids.
-  // So, we know that it won't be ENOENT or ENOTDIR or anything else.
-  // try really hard to delete stuff on windows, because it has a
-  // PROFOUNDLY annoying habit of not closing handles promptly when
-  // files are deleted, resulting in spurious ENOTEMPTY errors.
-  var retries = isWindows ? 100 : 1
-  var i = 0
-  do {
-    var threw = true
-    try {
-      var ret = options.rmdirSync(p, options)
-      threw = false
-      return ret
-    } finally {
-      if (++i < retries && threw)
-        continue
-    }
-  } while (true)
-}
-
-
-/***/ }),
-/* 308 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return ReplaySubject; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subject__ = __webpack_require__(36);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__scheduler_queue__ = __webpack_require__(439);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__Subscription__ = __webpack_require__(25);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__operators_observeOn__ = __webpack_require__(434);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__util_ObjectUnsubscribedError__ = __webpack_require__(189);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_6__SubjectSubscription__ = __webpack_require__(422);
-/** PURE_IMPORTS_START tslib,_Subject,_scheduler_queue,_Subscription,_operators_observeOn,_util_ObjectUnsubscribedError,_SubjectSubscription PURE_IMPORTS_END */
-
-
-
-
-
-
-
-var ReplaySubject = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](ReplaySubject, _super);
-    function ReplaySubject(bufferSize, windowTime, scheduler) {
-        if (bufferSize === void 0) {
-            bufferSize = Number.POSITIVE_INFINITY;
-        }
-        if (windowTime === void 0) {
-            windowTime = Number.POSITIVE_INFINITY;
-        }
-        var _this = _super.call(this) || this;
-        _this.scheduler = scheduler;
-        _this._events = [];
-        _this._infiniteTimeWindow = false;
-        _this._bufferSize = bufferSize < 1 ? 1 : bufferSize;
-        _this._windowTime = windowTime < 1 ? 1 : windowTime;
-        if (windowTime === Number.POSITIVE_INFINITY) {
-            _this._infiniteTimeWindow = true;
-            _this.next = _this.nextInfiniteTimeWindow;
-        }
-        else {
-            _this.next = _this.nextTimeWindow;
-        }
-        return _this;
-    }
-    ReplaySubject.prototype.nextInfiniteTimeWindow = function (value) {
-        var _events = this._events;
-        _events.push(value);
-        if (_events.length > this._bufferSize) {
-            _events.shift();
-        }
-        _super.prototype.next.call(this, value);
-    };
-    ReplaySubject.prototype.nextTimeWindow = function (value) {
-        this._events.push(new ReplayEvent(this._getNow(), value));
-        this._trimBufferThenGetEvents();
-        _super.prototype.next.call(this, value);
-    };
-    ReplaySubject.prototype._subscribe = function (subscriber) {
-        var _infiniteTimeWindow = this._infiniteTimeWindow;
-        var _events = _infiniteTimeWindow ? this._events : this._trimBufferThenGetEvents();
-        var scheduler = this.scheduler;
-        var len = _events.length;
-        var subscription;
-        if (this.closed) {
-            throw new __WEBPACK_IMPORTED_MODULE_5__util_ObjectUnsubscribedError__["a" /* ObjectUnsubscribedError */]();
-        }
-        else if (this.isStopped || this.hasError) {
-            subscription = __WEBPACK_IMPORTED_MODULE_3__Subscription__["a" /* Subscription */].EMPTY;
-        }
-        else {
-            this.observers.push(subscriber);
-            subscription = new __WEBPACK_IMPORTED_MODULE_6__SubjectSubscription__["a" /* SubjectSubscription */](this, subscriber);
-        }
-        if (scheduler) {
-            subscriber.add(subscriber = new __WEBPACK_IMPORTED_MODULE_4__operators_observeOn__["a" /* ObserveOnSubscriber */](subscriber, scheduler));
-        }
-        if (_infiniteTimeWindow) {
-            for (var i = 0; i < len && !subscriber.closed; i++) {
-                subscriber.next(_events[i]);
-            }
-        }
-        else {
-            for (var i = 0; i < len && !subscriber.closed; i++) {
-                subscriber.next(_events[i].value);
-            }
-        }
-        if (this.hasError) {
-            subscriber.error(this.thrownError);
-        }
-        else if (this.isStopped) {
-            subscriber.complete();
-        }
-        return subscription;
-    };
-    ReplaySubject.prototype._getNow = function () {
-        return (this.scheduler || __WEBPACK_IMPORTED_MODULE_2__scheduler_queue__["a" /* queue */]).now();
-    };
-    ReplaySubject.prototype._trimBufferThenGetEvents = function () {
-        var now = this._getNow();
-        var _bufferSize = this._bufferSize;
-        var _windowTime = this._windowTime;
-        var _events = this._events;
-        var eventsCount = _events.length;
-        var spliceCount = 0;
-        while (spliceCount < eventsCount) {
-            if ((now - _events[spliceCount].time) < _windowTime) {
-                break;
-            }
-            spliceCount++;
-        }
-        if (eventsCount > _bufferSize) {
-            spliceCount = Math.max(spliceCount, eventsCount - _bufferSize);
-        }
-        if (spliceCount > 0) {
-            _events.splice(0, spliceCount);
-        }
-        return _events;
-    };
-    return ReplaySubject;
-}(__WEBPACK_IMPORTED_MODULE_1__Subject__["a" /* Subject */]));
-
-var ReplayEvent = /*@__PURE__*/ (function () {
-    function ReplayEvent(time, value) {
-        this.time = time;
-        this.value = value;
-    }
-    return ReplayEvent;
-}());
-//# sourceMappingURL=ReplaySubject.js.map
-
-
-/***/ }),
-/* 309 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = combineLatest;
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "b", function() { return CombineLatestOperator; });
-/* unused harmony export CombineLatestSubscriber */
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__util_isScheduler__ = __webpack_require__(49);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__util_isArray__ = __webpack_require__(41);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__OuterSubscriber__ = __webpack_require__(13);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_subscribeToResult__ = __webpack_require__(14);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__fromArray__ = __webpack_require__(85);
-/** PURE_IMPORTS_START tslib,_util_isScheduler,_util_isArray,_OuterSubscriber,_util_subscribeToResult,_fromArray PURE_IMPORTS_END */
-
-
-
-
-
-
-var NONE = {};
-function combineLatest() {
-    var observables = [];
-    for (var _i = 0; _i < arguments.length; _i++) {
-        observables[_i] = arguments[_i];
-    }
-    var resultSelector = null;
-    var scheduler = null;
-    if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_1__util_isScheduler__["a" /* isScheduler */])(observables[observables.length - 1])) {
-        scheduler = observables.pop();
-    }
-    if (typeof observables[observables.length - 1] === 'function') {
-        resultSelector = observables.pop();
-    }
-    if (observables.length === 1 && __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__util_isArray__["a" /* isArray */])(observables[0])) {
-        observables = observables[0];
-    }
-    return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_5__fromArray__["a" /* fromArray */])(observables, scheduler).lift(new CombineLatestOperator(resultSelector));
-}
-var CombineLatestOperator = /*@__PURE__*/ (function () {
-    function CombineLatestOperator(resultSelector) {
-        this.resultSelector = resultSelector;
-    }
-    CombineLatestOperator.prototype.call = function (subscriber, source) {
-        return source.subscribe(new CombineLatestSubscriber(subscriber, this.resultSelector));
-    };
-    return CombineLatestOperator;
-}());
-
-var CombineLatestSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](CombineLatestSubscriber, _super);
-    function CombineLatestSubscriber(destination, resultSelector) {
-        var _this = _super.call(this, destination) || this;
-        _this.resultSelector = resultSelector;
-        _this.active = 0;
-        _this.values = [];
-        _this.observables = [];
-        return _this;
-    }
-    CombineLatestSubscriber.prototype._next = function (observable) {
-        this.values.push(NONE);
-        this.observables.push(observable);
-    };
-    CombineLatestSubscriber.prototype._complete = function () {
-        var observables = this.observables;
-        var len = observables.length;
-        if (len === 0) {
-            this.destination.complete();
-        }
-        else {
-            this.active = len;
-            this.toRespond = len;
-            for (var i = 0; i < len; i++) {
-                var observable = observables[i];
-                this.add(__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_4__util_subscribeToResult__["a" /* subscribeToResult */])(this, observable, observable, i));
-            }
-        }
-    };
-    CombineLatestSubscriber.prototype.notifyComplete = function (unused) {
-        if ((this.active -= 1) === 0) {
-            this.destination.complete();
-        }
-    };
-    CombineLatestSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
-        var values = this.values;
-        var oldVal = values[outerIndex];
-        var toRespond = !this.toRespond
-            ? 0
-            : oldVal === NONE ? --this.toRespond : this.toRespond;
-        values[outerIndex] = innerValue;
-        if (toRespond === 0) {
-            if (this.resultSelector) {
-                this._tryResultSelector(values);
-            }
-            else {
-                this.destination.next(values.slice());
-            }
-        }
-    };
-    CombineLatestSubscriber.prototype._tryResultSelector = function (values) {
-        var result;
-        try {
-            result = this.resultSelector.apply(this, values);
-        }
-        catch (err) {
-            this.destination.error(err);
-            return;
-        }
-        this.destination.next(result);
-    };
-    return CombineLatestSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_3__OuterSubscriber__["a" /* OuterSubscriber */]));
-
-//# sourceMappingURL=combineLatest.js.map
-
-
-/***/ }),
-/* 310 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = defer;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__from__ = __webpack_require__(62);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__empty__ = __webpack_require__(39);
-/** PURE_IMPORTS_START _Observable,_from,_empty PURE_IMPORTS_END */
-
-
-
-function defer(observableFactory) {
-    return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) {
-        var input;
-        try {
-            input = observableFactory();
-        }
-        catch (err) {
-            subscriber.error(err);
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-    TakeOperator.prototype.call = function (subscriber, source) {
-        return source.subscribe(new TakeSubscriber(subscriber, this.total));
-    };
-    return TakeOperator;
-}());
-var TakeSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](TakeSubscriber, _super);
-    function TakeSubscriber(destination, total) {
-        var _this = _super.call(this, destination) || this;
-        _this.total = total;
-        _this.count = 0;
-        return _this;
-    }
-    TakeSubscriber.prototype._next = function (value) {
-        var total = this.total;
-        var count = ++this.count;
-        if (count <= total) {
-            this.destination.next(value);
-            if (count === total) {
-                this.destination.complete();
-                this.unsubscribe();
-            }
-        }
-    };
-    return TakeSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_1__Subscriber__["a" /* Subscriber */]));
-//# sourceMappingURL=take.js.map
-
-
-/***/ }),
-/* 320 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = takeLast;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Subscriber__ = __webpack_require__(7);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__util_ArgumentOutOfRangeError__ = __webpack_require__(152);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__observable_empty__ = __webpack_require__(39);
-/** PURE_IMPORTS_START tslib,_Subscriber,_util_ArgumentOutOfRangeError,_observable_empty PURE_IMPORTS_END */
-
-
-
-
-function takeLast(count) {
-    return function takeLastOperatorFunction(source) {
-        if (count === 0) {
-            return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__observable_empty__["a" /* empty */])();
-        }
-        else {
-            return source.lift(new TakeLastOperator(count));
-        }
-    };
-}
-var TakeLastOperator = /*@__PURE__*/ (function () {
-    function TakeLastOperator(total) {
-        this.total = total;
-        if (this.total < 0) {
-            throw new __WEBPACK_IMPORTED_MODULE_2__util_ArgumentOutOfRangeError__["a" /* ArgumentOutOfRangeError */];
-        }
-    }
-    TakeLastOperator.prototype.call = function (subscriber, source) {
-        return source.subscribe(new TakeLastSubscriber(subscriber, this.total));
-    };
-    return TakeLastOperator;
-}());
-var TakeLastSubscriber = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](TakeLastSubscriber, _super);
-    function TakeLastSubscriber(destination, total) {
-        var _this = _super.call(this, destination) || this;
-        _this.total = total;
-        _this.ring = new Array();
-        _this.count = 0;
-        return _this;
-    }
-    TakeLastSubscriber.prototype._next = function (value) {
-        var ring = this.ring;
-        var total = this.total;
-        var count = this.count++;
-        if (ring.length < total) {
-            ring.push(value);
-        }
-        else {
-            var index = count % total;
-            ring[index] = value;
-        }
-    };
-    TakeLastSubscriber.prototype._complete = function () {
-        var destination = this.destination;
-        var count = this.count;
-        if (count > 0) {
-            var total = this.count >= this.total ? this.total : this.count;
-            var ring = this.ring;
-            for (var i = 0; i < total; i++) {
-                var idx = (count++) % total;
-                destination.next(ring[idx]);
-            }
-        }
-        destination.complete();
-    };
-    return TakeLastSubscriber;
-}(__WEBPACK_IMPORTED_MODULE_1__Subscriber__["a" /* Subscriber */]));
-//# sourceMappingURL=takeLast.js.map
-
-
-/***/ }),
-/* 321 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return rxSubscriber; });
-/* unused harmony export $$rxSubscriber */
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-var rxSubscriber = typeof Symbol === 'function'
-    ? /*@__PURE__*/ Symbol('rxSubscriber')
-    : '@@rxSubscriber_' + /*@__PURE__*/ Math.random();
-var $$rxSubscriber = rxSubscriber;
-//# sourceMappingURL=rxSubscriber.js.map
-
-
-/***/ }),
-/* 322 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = canReportError;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Subscriber__ = __webpack_require__(7);
-/** PURE_IMPORTS_START _Subscriber PURE_IMPORTS_END */
-
-function canReportError(observer) {
-    while (observer) {
-        var _a = observer, closed_1 = _a.closed, destination = _a.destination, isStopped = _a.isStopped;
-        if (closed_1 || isStopped) {
-            return false;
-        }
-        else if (destination && destination instanceof __WEBPACK_IMPORTED_MODULE_0__Subscriber__["a" /* Subscriber */]) {
-            observer = destination;
-        }
-        else {
-            observer = null;
-        }
-    }
-    return true;
-}
-//# sourceMappingURL=canReportError.js.map
-
-
-/***/ }),
-/* 323 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = hostReportError;
-/** PURE_IMPORTS_START  PURE_IMPORTS_END */
-function hostReportError(err) {
-    setTimeout(function () { throw err; });
-}
-//# sourceMappingURL=hostReportError.js.map
-
-
-/***/ }),
-/* 324 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = pipe;
-/* harmony export (immutable) */ __webpack_exports__["b"] = pipeFromArray;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__noop__ = __webpack_require__(191);
-/** PURE_IMPORTS_START _noop PURE_IMPORTS_END */
-
-function pipe() {
-    var fns = [];
-    for (var _i = 0; _i < arguments.length; _i++) {
-        fns[_i] = arguments[_i];
-    }
-    return pipeFromArray(fns);
-}
-function pipeFromArray(fns) {
-    if (!fns) {
-        return __WEBPACK_IMPORTED_MODULE_0__noop__["a" /* noop */];
-    }
-    if (fns.length === 1) {
-        return fns[0];
-    }
-    return function piped(input) {
-        return fns.reduce(function (prev, fn) { return fn(prev); }, input);
-    };
-}
-//# sourceMappingURL=pipe.js.map
-
-
-/***/ }),
-/* 325 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = {
-	DiffieHellman: DiffieHellman,
-	generateECDSA: generateECDSA,
-	generateED25519: generateED25519
-};
-
-var assert = __webpack_require__(16);
-var crypto = __webpack_require__(11);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var nacl;
-
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-
-var CRYPTO_HAVE_ECDH = (crypto.createECDH !== undefined);
-
-var ecdh, ec, jsbn;
-
-function DiffieHellman(key) {
-	utils.assertCompatible(key, Key, [1, 4], 'key');
-	this._isPriv = PrivateKey.isPrivateKey(key, [1, 3]);
-	this._algo = key.type;
-	this._curve = key.curve;
-	this._key = key;
-	if (key.type === 'dsa') {
-		if (!CRYPTO_HAVE_ECDH) {
-			throw (new Error('Due to bugs in the node 0.10 ' +
-			    'crypto API, node 0.12.x or later is required ' +
-			    'to use DH'));
-		}
-		this._dh = crypto.createDiffieHellman(
-		    key.part.p.data, undefined,
-		    key.part.g.data, undefined);
-		this._p = key.part.p;
-		this._g = key.part.g;
-		if (this._isPriv)
-			this._dh.setPrivateKey(key.part.x.data);
-		this._dh.setPublicKey(key.part.y.data);
-
-	} else if (key.type === 'ecdsa') {
-		if (!CRYPTO_HAVE_ECDH) {
-			if (ecdh === undefined)
-				ecdh = __webpack_require__(387);
-			if (ec === undefined)
-				ec = __webpack_require__(139);
-			if (jsbn === undefined)
-				jsbn = __webpack_require__(81).BigInteger;
-
-			this._ecParams = new X9ECParameters(this._curve);
-
-			if (this._isPriv) {
-				this._priv = new ECPrivate(
-				    this._ecParams, key.part.d.data);
-			}
-			return;
-		}
-
-		var curve = {
-			'nistp256': 'prime256v1',
-			'nistp384': 'secp384r1',
-			'nistp521': 'secp521r1'
-		}[key.curve];
-		this._dh = crypto.createECDH(curve);
-		if (typeof (this._dh) !== 'object' ||
-		    typeof (this._dh.setPrivateKey) !== 'function') {
-			CRYPTO_HAVE_ECDH = false;
-			DiffieHellman.call(this, key);
-			return;
-		}
-		if (this._isPriv)
-			this._dh.setPrivateKey(key.part.d.data);
-		this._dh.setPublicKey(key.part.Q.data);
-
-	} else if (key.type === 'curve25519') {
-		if (nacl === undefined)
-			nacl = __webpack_require__(76);
-
-		if (this._isPriv) {
-			utils.assertCompatible(key, PrivateKey, [1, 5], 'key');
-			this._priv = key.part.k.data;
-		}
-
-	} else {
-		throw (new Error('DH not supported for ' + key.type + ' keys'));
-	}
-}
-
-DiffieHellman.prototype.getPublicKey = function () {
-	if (this._isPriv)
-		return (this._key.toPublic());
-	return (this._key);
-};
-
-DiffieHellman.prototype.getPrivateKey = function () {
-	if (this._isPriv)
-		return (this._key);
-	else
-		return (undefined);
-};
-DiffieHellman.prototype.getKey = DiffieHellman.prototype.getPrivateKey;
-
-DiffieHellman.prototype._keyCheck = function (pk, isPub) {
-	assert.object(pk, 'key');
-	if (!isPub)
-		utils.assertCompatible(pk, PrivateKey, [1, 3], 'key');
-	utils.assertCompatible(pk, Key, [1, 4], 'key');
-
-	if (pk.type !== this._algo) {
-		throw (new Error('A ' + pk.type + ' key cannot be used in ' +
-		    this._algo + ' Diffie-Hellman'));
-	}
-
-	if (pk.curve !== this._curve) {
-		throw (new Error('A key from the ' + pk.curve + ' curve ' +
-		    'cannot be used with a ' + this._curve +
-		    ' Diffie-Hellman'));
-	}
-
-	if (pk.type === 'dsa') {
-		assert.deepEqual(pk.part.p, this._p,
-		    'DSA key prime does not match');
-		assert.deepEqual(pk.part.g, this._g,
-		    'DSA key generator does not match');
-	}
-};
-
-DiffieHellman.prototype.setKey = function (pk) {
-	this._keyCheck(pk);
-
-	if (pk.type === 'dsa') {
-		this._dh.setPrivateKey(pk.part.x.data);
-		this._dh.setPublicKey(pk.part.y.data);
-
-	} else if (pk.type === 'ecdsa') {
-		if (CRYPTO_HAVE_ECDH) {
-			this._dh.setPrivateKey(pk.part.d.data);
-			this._dh.setPublicKey(pk.part.Q.data);
-		} else {
-			this._priv = new ECPrivate(
-			    this._ecParams, pk.part.d.data);
-		}
-
-	} else if (pk.type === 'curve25519') {
-		var k = pk.part.k;
-		if (!pk.part.k)
-			k = pk.part.r;
-		this._priv = k.data;
-		if (this._priv[0] === 0x00)
-			this._priv = this._priv.slice(1);
-		this._priv = this._priv.slice(0, 32);
-	}
-	this._key = pk;
-	this._isPriv = true;
-};
-DiffieHellman.prototype.setPrivateKey = DiffieHellman.prototype.setKey;
-
-DiffieHellman.prototype.computeSecret = function (otherpk) {
-	this._keyCheck(otherpk, true);
-	if (!this._isPriv)
-		throw (new Error('DH exchange has not been initialized with ' +
-		    'a private key yet'));
-
-	var pub;
-	if (this._algo === 'dsa') {
-		return (this._dh.computeSecret(
-		    otherpk.part.y.data));
-
-	} else if (this._algo === 'ecdsa') {
-		if (CRYPTO_HAVE_ECDH) {
-			return (this._dh.computeSecret(
-			    otherpk.part.Q.data));
-		} else {
-			pub = new ECPublic(
-			    this._ecParams, otherpk.part.Q.data);
-			return (this._priv.deriveSharedSecret(pub));
-		}
-
-	} else if (this._algo === 'curve25519') {
-		pub = otherpk.part.A.data;
-		while (pub[0] === 0x00 && pub.length > 32)
-			pub = pub.slice(1);
-		var priv = this._priv;
-		assert.strictEqual(pub.length, 32);
-		assert.strictEqual(priv.length, 32);
-
-		var secret = nacl.box.before(new Uint8Array(pub),
-		    new Uint8Array(priv));
-
-		return (Buffer.from(secret));
-	}
-
-	throw (new Error('Invalid algorithm: ' + this._algo));
-};
-
-DiffieHellman.prototype.generateKey = function () {
-	var parts = [];
-	var priv, pub;
-	if (this._algo === 'dsa') {
-		this._dh.generateKeys();
-
-		parts.push({name: 'p', data: this._p.data});
-		parts.push({name: 'q', data: this._key.part.q.data});
-		parts.push({name: 'g', data: this._g.data});
-		parts.push({name: 'y', data: this._dh.getPublicKey()});
-		parts.push({name: 'x', data: this._dh.getPrivateKey()});
-		this._key = new PrivateKey({
-			type: 'dsa',
-			parts: parts
-		});
-		this._isPriv = true;
-		return (this._key);
-
-	} else if (this._algo === 'ecdsa') {
-		if (CRYPTO_HAVE_ECDH) {
-			this._dh.generateKeys();
-
-			parts.push({name: 'curve',
-			    data: Buffer.from(this._curve)});
-			parts.push({name: 'Q', data: this._dh.getPublicKey()});
-			parts.push({name: 'd', data: this._dh.getPrivateKey()});
-			this._key = new PrivateKey({
-				type: 'ecdsa',
-				curve: this._curve,
-				parts: parts
-			});
-			this._isPriv = true;
-			return (this._key);
-
-		} else {
-			var n = this._ecParams.getN();
-			var r = new jsbn(crypto.randomBytes(n.bitLength()));
-			var n1 = n.subtract(jsbn.ONE);
-			priv = r.mod(n1).add(jsbn.ONE);
-			pub = this._ecParams.getG().multiply(priv);
-
-			priv = Buffer.from(priv.toByteArray());
-			pub = Buffer.from(this._ecParams.getCurve().
-			    encodePointHex(pub), 'hex');
-
-			this._priv = new ECPrivate(this._ecParams, priv);
-
-			parts.push({name: 'curve',
-			    data: Buffer.from(this._curve)});
-			parts.push({name: 'Q', data: pub});
-			parts.push({name: 'd', data: priv});
-
-			this._key = new PrivateKey({
-				type: 'ecdsa',
-				curve: this._curve,
-				parts: parts
-			});
-			this._isPriv = true;
-			return (this._key);
-		}
-
-	} else if (this._algo === 'curve25519') {
-		var pair = nacl.box.keyPair();
-		priv = Buffer.from(pair.secretKey);
-		pub = Buffer.from(pair.publicKey);
-		priv = Buffer.concat([priv, pub]);
-		assert.strictEqual(priv.length, 64);
-		assert.strictEqual(pub.length, 32);
-
-		parts.push({name: 'A', data: pub});
-		parts.push({name: 'k', data: priv});
-		this._key = new PrivateKey({
-			type: 'curve25519',
-			parts: parts
-		});
-		this._isPriv = true;
-		return (this._key);
-	}
-
-	throw (new Error('Invalid algorithm: ' + this._algo));
-};
-DiffieHellman.prototype.generateKeys = DiffieHellman.prototype.generateKey;
-
-/* These are helpers for using ecc-jsbn (for node 0.10 compatibility). */
-
-function X9ECParameters(name) {
-	var params = algs.curves[name];
-	assert.object(params);
-
-	var p = new jsbn(params.p);
-	var a = new jsbn(params.a);
-	var b = new jsbn(params.b);
-	var n = new jsbn(params.n);
-	var h = jsbn.ONE;
-	var curve = new ec.ECCurveFp(p, a, b);
-	var G = curve.decodePointHex(params.G.toString('hex'));
-
-	this.curve = curve;
-	this.g = G;
-	this.n = n;
-	this.h = h;
-}
-X9ECParameters.prototype.getCurve = function () { return (this.curve); };
-X9ECParameters.prototype.getG = function () { return (this.g); };
-X9ECParameters.prototype.getN = function () { return (this.n); };
-X9ECParameters.prototype.getH = function () { return (this.h); };
-
-function ECPublic(params, buffer) {
-	this._params = params;
-	if (buffer[0] === 0x00)
-		buffer = buffer.slice(1);
-	this._pub = params.getCurve().decodePointHex(buffer.toString('hex'));
-}
-
-function ECPrivate(params, buffer) {
-	this._params = params;
-	this._priv = new jsbn(utils.mpNormalize(buffer));
-}
-ECPrivate.prototype.deriveSharedSecret = function (pubKey) {
-	assert.ok(pubKey instanceof ECPublic);
-	var S = pubKey._pub.multiply(this._priv);
-	return (Buffer.from(S.getX().toBigInteger().toByteArray()));
-};
-
-function generateED25519() {
-	if (nacl === undefined)
-		nacl = __webpack_require__(76);
-
-	var pair = nacl.sign.keyPair();
-	var priv = Buffer.from(pair.secretKey);
-	var pub = Buffer.from(pair.publicKey);
-	assert.strictEqual(priv.length, 64);
-	assert.strictEqual(pub.length, 32);
-
-	var parts = [];
-	parts.push({name: 'A', data: pub});
-	parts.push({name: 'k', data: priv.slice(0, 32)});
-	var key = new PrivateKey({
-		type: 'ed25519',
-		parts: parts
-	});
-	return (key);
-}
-
-/* Generates a new ECDSA private key on a given curve. */
-function generateECDSA(curve) {
-	var parts = [];
-	var key;
-
-	if (CRYPTO_HAVE_ECDH) {
-		/*
-		 * Node crypto doesn't expose key generation directly, but the
-		 * ECDH instances can generate keys. It turns out this just
-		 * calls into the OpenSSL generic key generator, and we can
-		 * read its output happily without doing an actual DH. So we
-		 * use that here.
-		 */
-		var osCurve = {
-			'nistp256': 'prime256v1',
-			'nistp384': 'secp384r1',
-			'nistp521': 'secp521r1'
-		}[curve];
-
-		var dh = crypto.createECDH(osCurve);
-		dh.generateKeys();
-
-		parts.push({name: 'curve',
-		    data: Buffer.from(curve)});
-		parts.push({name: 'Q', data: dh.getPublicKey()});
-		parts.push({name: 'd', data: dh.getPrivateKey()});
-
-		key = new PrivateKey({
-			type: 'ecdsa',
-			curve: curve,
-			parts: parts
-		});
-		return (key);
-	} else {
-		if (ecdh === undefined)
-			ecdh = __webpack_require__(387);
-		if (ec === undefined)
-			ec = __webpack_require__(139);
-		if (jsbn === undefined)
-			jsbn = __webpack_require__(81).BigInteger;
-
-		var ecParams = new X9ECParameters(curve);
-
-		/* This algorithm taken from FIPS PUB 186-4 (section B.4.1) */
-		var n = ecParams.getN();
-		/*
-		 * The crypto.randomBytes() function can only give us whole
-		 * bytes, so taking a nod from X9.62, we round up.
-		 */
-		var cByteLen = Math.ceil((n.bitLength() + 64) / 8);
-		var c = new jsbn(crypto.randomBytes(cByteLen));
-
-		var n1 = n.subtract(jsbn.ONE);
-		var priv = c.mod(n1).add(jsbn.ONE);
-		var pub = ecParams.getG().multiply(priv);
-
-		priv = Buffer.from(priv.toByteArray());
-		pub = Buffer.from(ecParams.getCurve().
-		    encodePointHex(pub), 'hex');
-
-		parts.push({name: 'curve', data: Buffer.from(curve)});
-		parts.push({name: 'Q', data: pub});
-		parts.push({name: 'd', data: priv});
-
-		key = new PrivateKey({
-			type: 'ecdsa',
-			curve: curve,
-			parts: parts
-		});
-		return (key);
-	}
-}
-
-
-/***/ }),
-/* 326 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var utils = __webpack_require__(26);
-var SSHBuffer = __webpack_require__(159);
-var Dhe = __webpack_require__(325);
-
-var supportedAlgos = {
-	'rsa-sha1' : 5,
-	'rsa-sha256' : 8,
-	'rsa-sha512' : 10,
-	'ecdsa-p256-sha256' : 13,
-	'ecdsa-p384-sha384' : 14
-	/*
-	 * ed25519 is hypothetically supported with id 15
-	 * but the common tools available don't appear to be
-	 * capable of generating/using ed25519 keys
-	 */
-};
-
-var supportedAlgosById = {};
-Object.keys(supportedAlgos).forEach(function (k) {
-	supportedAlgosById[supportedAlgos[k]] = k.toUpperCase();
-});
-
-function read(buf, options) {
-	if (typeof (buf) !== 'string') {
-		assert.buffer(buf, 'buf');
-		buf = buf.toString('ascii');
-	}
-	var lines = buf.split('\n');
-	if (lines[0].match(/^Private-key-format\: v1/)) {
-		var algElems = lines[1].split(' ');
-		var algoNum = parseInt(algElems[1], 10);
-		var algoName = algElems[2];
-		if (!supportedAlgosById[algoNum])
-			throw (new Error('Unsupported algorithm: ' + algoName));
-		return (readDNSSECPrivateKey(algoNum, lines.slice(2)));
-	}
-
-	// skip any comment-lines
-	var line = 0;
-	/* JSSTYLED */
-	while (lines[line].match(/^\;/))
-		line++;
-	// we should now have *one single* line left with our KEY on it.
-	if ((lines[line].match(/\. IN KEY /) ||
-	    lines[line].match(/\. IN DNSKEY /)) && lines[line+1].length === 0) {
-		return (readRFC3110(lines[line]));
-	}
-	throw (new Error('Cannot parse dnssec key'));
-}
-
-function readRFC3110(keyString) {
-	var elems = keyString.split(' ');
-	//unused var flags = parseInt(elems[3], 10);
-	//unused var protocol = parseInt(elems[4], 10);
-	var algorithm = parseInt(elems[5], 10);
-	if (!supportedAlgosById[algorithm])
-		throw (new Error('Unsupported algorithm: ' + algorithm));
-	var base64key = elems.slice(6, elems.length).join();
-	var keyBuffer = Buffer.from(base64key, 'base64');
-	if (supportedAlgosById[algorithm].match(/^RSA-/)) {
-		// join the rest of the body into a single base64-blob
-		var publicExponentLen = keyBuffer.readUInt8(0);
-		if (publicExponentLen != 3 && publicExponentLen != 1)
-			throw (new Error('Cannot parse dnssec key: ' +
-			    'unsupported exponent length'));
-
-		var publicExponent = keyBuffer.slice(1, publicExponentLen+1);
-		publicExponent = utils.mpNormalize(publicExponent);
-		var modulus = keyBuffer.slice(1+publicExponentLen);
-		modulus = utils.mpNormalize(modulus);
-		// now, make the key
-		var rsaKey = {
-			type: 'rsa',
-			parts: []
-		};
-		rsaKey.parts.push({ name: 'e', data: publicExponent});
-		rsaKey.parts.push({ name: 'n', data: modulus});
-		return (new Key(rsaKey));
-	}
-	if (supportedAlgosById[algorithm] === 'ECDSA-P384-SHA384' ||
-	    supportedAlgosById[algorithm] === 'ECDSA-P256-SHA256') {
-		var curve = 'nistp384';
-		var size = 384;
-		if (supportedAlgosById[algorithm].match(/^ECDSA-P256-SHA256/)) {
-			curve = 'nistp256';
-			size = 256;
-		}
-
-		var ecdsaKey = {
-			type: 'ecdsa',
-			curve: curve,
-			size: size,
-			parts: [
-				{name: 'curve', data: Buffer.from(curve) },
-				{name: 'Q', data: utils.ecNormalize(keyBuffer) }
-			]
-		};
-		return (new Key(ecdsaKey));
-	}
-	throw (new Error('Unsupported algorithm: ' +
-	    supportedAlgosById[algorithm]));
-}
-
-function elementToBuf(e) {
-	return (Buffer.from(e.split(' ')[1], 'base64'));
-}
-
-function readDNSSECRSAPrivateKey(elements) {
-	var rsaParams = {};
-	elements.forEach(function (element) {
-		if (element.split(' ')[0] === 'Modulus:')
-			rsaParams['n'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'PublicExponent:')
-			rsaParams['e'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'PrivateExponent:')
-			rsaParams['d'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'Prime1:')
-			rsaParams['p'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'Prime2:')
-			rsaParams['q'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'Exponent1:')
-			rsaParams['dmodp'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'Exponent2:')
-			rsaParams['dmodq'] = elementToBuf(element);
-		else if (element.split(' ')[0] === 'Coefficient:')
-			rsaParams['iqmp'] = elementToBuf(element);
-	});
-	// now, make the key
-	var key = {
-		type: 'rsa',
-		parts: [
-			{ name: 'e', data: utils.mpNormalize(rsaParams['e'])},
-			{ name: 'n', data: utils.mpNormalize(rsaParams['n'])},
-			{ name: 'd', data: utils.mpNormalize(rsaParams['d'])},
-			{ name: 'p', data: utils.mpNormalize(rsaParams['p'])},
-			{ name: 'q', data: utils.mpNormalize(rsaParams['q'])},
-			{ name: 'dmodp',
-			    data: utils.mpNormalize(rsaParams['dmodp'])},
-			{ name: 'dmodq',
-			    data: utils.mpNormalize(rsaParams['dmodq'])},
-			{ name: 'iqmp',
-			    data: utils.mpNormalize(rsaParams['iqmp'])}
-		]
-	};
-	return (new PrivateKey(key));
-}
-
-function readDNSSECPrivateKey(alg, elements) {
-	if (supportedAlgosById[alg].match(/^RSA-/)) {
-		return (readDNSSECRSAPrivateKey(elements));
-	}
-	if (supportedAlgosById[alg] === 'ECDSA-P384-SHA384' ||
-	    supportedAlgosById[alg] === 'ECDSA-P256-SHA256') {
-		var d = Buffer.from(elements[0].split(' ')[1], 'base64');
-		var curve = 'nistp384';
-		var size = 384;
-		if (supportedAlgosById[alg] === 'ECDSA-P256-SHA256') {
-			curve = 'nistp256';
-			size = 256;
-		}
-		// DNSSEC generates the public-key on the fly (go calculate it)
-		var publicKey = utils.publicFromPrivateECDSA(curve, d);
-		var Q = publicKey.part['Q'].data;
-		var ecdsaKey = {
-			type: 'ecdsa',
-			curve: curve,
-			size: size,
-			parts: [
-				{name: 'curve', data: Buffer.from(curve) },
-				{name: 'd', data: d },
-				{name: 'Q', data: Q }
-			]
-		};
-		return (new PrivateKey(ecdsaKey));
-	}
-	throw (new Error('Unsupported algorithm: ' + supportedAlgosById[alg]));
-}
-
-function dnssecTimestamp(date) {
-	var year = date.getFullYear() + ''; //stringify
-	var month = (date.getMonth() + 1);
-	var timestampStr = year + month + date.getUTCDate();
-	timestampStr += '' + date.getUTCHours() + date.getUTCMinutes();
-	timestampStr += date.getUTCSeconds();
-	return (timestampStr);
-}
-
-function rsaAlgFromOptions(opts) {
-	if (!opts || !opts.hashAlgo || opts.hashAlgo === 'sha1')
-		return ('5 (RSASHA1)');
-	else if (opts.hashAlgo === 'sha256')
-		return ('8 (RSASHA256)');
-	else if (opts.hashAlgo === 'sha512')
-		return ('10 (RSASHA512)');
-	else
-		throw (new Error('Unknown or unsupported hash: ' +
-		    opts.hashAlgo));
-}
-
-function writeRSA(key, options) {
-	// if we're missing parts, add them.
-	if (!key.part.dmodp || !key.part.dmodq) {
-		utils.addRSAMissing(key);
-	}
-
-	var out = '';
-	out += 'Private-key-format: v1.3\n';
-	out += 'Algorithm: ' + rsaAlgFromOptions(options) + '\n';
-	var n = utils.mpDenormalize(key.part['n'].data);
-	out += 'Modulus: ' + n.toString('base64') + '\n';
-	var e = utils.mpDenormalize(key.part['e'].data);
-	out += 'PublicExponent: ' + e.toString('base64') + '\n';
-	var d = utils.mpDenormalize(key.part['d'].data);
-	out += 'PrivateExponent: ' + d.toString('base64') + '\n';
-	var p = utils.mpDenormalize(key.part['p'].data);
-	out += 'Prime1: ' + p.toString('base64') + '\n';
-	var q = utils.mpDenormalize(key.part['q'].data);
-	out += 'Prime2: ' + q.toString('base64') + '\n';
-	var dmodp = utils.mpDenormalize(key.part['dmodp'].data);
-	out += 'Exponent1: ' + dmodp.toString('base64') + '\n';
-	var dmodq = utils.mpDenormalize(key.part['dmodq'].data);
-	out += 'Exponent2: ' + dmodq.toString('base64') + '\n';
-	var iqmp = utils.mpDenormalize(key.part['iqmp'].data);
-	out += 'Coefficient: ' + iqmp.toString('base64') + '\n';
-	// Assume that we're valid as-of now
-	var timestamp = new Date();
-	out += 'Created: ' + dnssecTimestamp(timestamp) + '\n';
-	out += 'Publish: ' + dnssecTimestamp(timestamp) + '\n';
-	out += 'Activate: ' + dnssecTimestamp(timestamp) + '\n';
-	return (Buffer.from(out, 'ascii'));
-}
-
-function writeECDSA(key, options) {
-	var out = '';
-	out += 'Private-key-format: v1.3\n';
-
-	if (key.curve === 'nistp256') {
-		out += 'Algorithm: 13 (ECDSAP256SHA256)\n';
-	} else if (key.curve === 'nistp384') {
-		out += 'Algorithm: 14 (ECDSAP384SHA384)\n';
-	} else {
-		throw (new Error('Unsupported curve'));
-	}
-	var base64Key = key.part['d'].data.toString('base64');
-	out += 'PrivateKey: ' + base64Key + '\n';
-
-	// Assume that we're valid as-of now
-	var timestamp = new Date();
-	out += 'Created: ' + dnssecTimestamp(timestamp) + '\n';
-	out += 'Publish: ' + dnssecTimestamp(timestamp) + '\n';
-	out += 'Activate: ' + dnssecTimestamp(timestamp) + '\n';
-
-	return (Buffer.from(out, 'ascii'));
-}
-
-function write(key, options) {
-	if (PrivateKey.isPrivateKey(key)) {
-		if (key.type === 'rsa') {
-			return (writeRSA(key, options));
-		} else if (key.type === 'ecdsa') {
-			return (writeECDSA(key, options));
-		} else {
-			throw (new Error('Unsupported algorithm: ' + key.type));
-		}
-	} else if (Key.isKey(key)) {
-		/*
-		 * RFC3110 requires a keyname, and a keytype, which we
-		 * don't really have a mechanism for specifying such
-		 * additional metadata.
-		 */
-		throw (new Error('Format "dnssec" only supports ' +
-		    'writing private keys'));
-	} else {
-		throw (new Error('key is not a Key or PrivateKey'));
-	}
-}
-
-
-/***/ }),
-/* 327 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	readPkcs1: readPkcs1,
-	write: write,
-	writePkcs1: writePkcs1
-};
-
-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var pem = __webpack_require__(86);
-
-var pkcs8 = __webpack_require__(157);
-var readECDSACurve = pkcs8.readECDSACurve;
-
-function read(buf, options) {
-	return (pem.read(buf, options, 'pkcs1'));
-}
-
-function write(key, options) {
-	return (pem.write(key, options, 'pkcs1'));
-}
-
-/* Helper to read in a single mpint */
-function readMPInt(der, nm) {
-	assert.strictEqual(der.peek(), asn1.Ber.Integer,
-	    nm + ' is not an Integer');
-	return (utils.mpNormalize(der.readString(asn1.Ber.Integer, true)));
-}
-
-function readPkcs1(alg, type, der) {
-	switch (alg) {
-	case 'RSA':
-		if (type === 'public')
-			return (readPkcs1RSAPublic(der));
-		else if (type === 'private')
-			return (readPkcs1RSAPrivate(der));
-		throw (new Error('Unknown key type: ' + type));
-	case 'DSA':
-		if (type === 'public')
-			return (readPkcs1DSAPublic(der));
-		else if (type === 'private')
-			return (readPkcs1DSAPrivate(der));
-		throw (new Error('Unknown key type: ' + type));
-	case 'EC':
-	case 'ECDSA':
-		if (type === 'private')
-			return (readPkcs1ECDSAPrivate(der));
-		else if (type === 'public')
-			return (readPkcs1ECDSAPublic(der));
-		throw (new Error('Unknown key type: ' + type));
-	case 'EDDSA':
-	case 'EdDSA':
-		if (type === 'private')
-			return (readPkcs1EdDSAPrivate(der));
-		throw (new Error(type + ' keys not supported with EdDSA'));
-	default:
-		throw (new Error('Unknown key algo: ' + alg));
-	}
-}
-
-function readPkcs1RSAPublic(der) {
-	// modulus and exponent
-	var n = readMPInt(der, 'modulus');
-	var e = readMPInt(der, 'exponent');
-
-	// now, make the key
-	var key = {
-		type: 'rsa',
-		parts: [
-			{ name: 'e', data: e },
-			{ name: 'n', data: n }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs1RSAPrivate(der) {
-	var version = readMPInt(der, 'version');
-	assert.strictEqual(version[0], 0);
-
-	// modulus then public exponent
-	var n = readMPInt(der, 'modulus');
-	var e = readMPInt(der, 'public exponent');
-	var d = readMPInt(der, 'private exponent');
-	var p = readMPInt(der, 'prime1');
-	var q = readMPInt(der, 'prime2');
-	var dmodp = readMPInt(der, 'exponent1');
-	var dmodq = readMPInt(der, 'exponent2');
-	var iqmp = readMPInt(der, 'iqmp');
-
-	// now, make the key
-	var key = {
-		type: 'rsa',
-		parts: [
-			{ name: 'n', data: n },
-			{ name: 'e', data: e },
-			{ name: 'd', data: d },
-			{ name: 'iqmp', data: iqmp },
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'dmodp', data: dmodp },
-			{ name: 'dmodq', data: dmodq }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs1DSAPrivate(der) {
-	var version = readMPInt(der, 'version');
-	assert.strictEqual(version.readUInt8(0), 0);
-
-	var p = readMPInt(der, 'p');
-	var q = readMPInt(der, 'q');
-	var g = readMPInt(der, 'g');
-	var y = readMPInt(der, 'y');
-	var x = readMPInt(der, 'x');
-
-	// now, make the key
-	var key = {
-		type: 'dsa',
-		parts: [
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'g', data: g },
-			{ name: 'y', data: y },
-			{ name: 'x', data: x }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs1EdDSAPrivate(der) {
-	var version = readMPInt(der, 'version');
-	assert.strictEqual(version.readUInt8(0), 1);
-
-	// private key
-	var k = der.readString(asn1.Ber.OctetString, true);
-
-	der.readSequence(0xa0);
-	var oid = der.readOID();
-	assert.strictEqual(oid, '1.3.101.112', 'the ed25519 curve identifier');
-
-	der.readSequence(0xa1);
-	var A = utils.readBitString(der);
-
-	var key = {
-		type: 'ed25519',
-		parts: [
-			{ name: 'A', data: utils.zeroPadToLength(A, 32) },
-			{ name: 'k', data: k }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function readPkcs1DSAPublic(der) {
-	var y = readMPInt(der, 'y');
-	var p = readMPInt(der, 'p');
-	var q = readMPInt(der, 'q');
-	var g = readMPInt(der, 'g');
-
-	var key = {
-		type: 'dsa',
-		parts: [
-			{ name: 'y', data: y },
-			{ name: 'p', data: p },
-			{ name: 'q', data: q },
-			{ name: 'g', data: g }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs1ECDSAPublic(der) {
-	der.readSequence();
-
-	var oid = der.readOID();
-	assert.strictEqual(oid, '1.2.840.10045.2.1', 'must be ecPublicKey');
-
-	var curveOid = der.readOID();
-
-	var curve;
-	var curves = Object.keys(algs.curves);
-	for (var j = 0; j < curves.length; ++j) {
-		var c = curves[j];
-		var cd = algs.curves[c];
-		if (cd.pkcs8oid === curveOid) {
-			curve = c;
-			break;
-		}
-	}
-	assert.string(curve, 'a known ECDSA named curve');
-
-	var Q = der.readString(asn1.Ber.BitString, true);
-	Q = utils.ecNormalize(Q);
-
-	var key = {
-		type: 'ecdsa',
-		parts: [
-			{ name: 'curve', data: Buffer.from(curve) },
-			{ name: 'Q', data: Q }
-		]
-	};
-
-	return (new Key(key));
-}
-
-function readPkcs1ECDSAPrivate(der) {
-	var version = readMPInt(der, 'version');
-	assert.strictEqual(version.readUInt8(0), 1);
-
-	// private key
-	var d = der.readString(asn1.Ber.OctetString, true);
-
-	der.readSequence(0xa0);
-	var curve = readECDSACurve(der);
-	assert.string(curve, 'a known elliptic curve');
-
-	der.readSequence(0xa1);
-	var Q = der.readString(asn1.Ber.BitString, true);
-	Q = utils.ecNormalize(Q);
-
-	var key = {
-		type: 'ecdsa',
-		parts: [
-			{ name: 'curve', data: Buffer.from(curve) },
-			{ name: 'Q', data: Q },
-			{ name: 'd', data: d }
-		]
-	};
-
-	return (new PrivateKey(key));
-}
-
-function writePkcs1(der, key) {
-	der.startSequence();
-
-	switch (key.type) {
-	case 'rsa':
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs1RSAPrivate(der, key);
-		else
-			writePkcs1RSAPublic(der, key);
-		break;
-	case 'dsa':
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs1DSAPrivate(der, key);
-		else
-			writePkcs1DSAPublic(der, key);
-		break;
-	case 'ecdsa':
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs1ECDSAPrivate(der, key);
-		else
-			writePkcs1ECDSAPublic(der, key);
-		break;
-	case 'ed25519':
-		if (PrivateKey.isPrivateKey(key))
-			writePkcs1EdDSAPrivate(der, key);
-		else
-			writePkcs1EdDSAPublic(der, key);
-		break;
-	default:
-		throw (new Error('Unknown key algo: ' + key.type));
-	}
-
-	der.endSequence();
-}
-
-function writePkcs1RSAPublic(der, key) {
-	der.writeBuffer(key.part.n.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.e.data, asn1.Ber.Integer);
-}
-
-function writePkcs1RSAPrivate(der, key) {
-	var ver = Buffer.from([0]);
-	der.writeBuffer(ver, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.n.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.e.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.d.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	if (!key.part.dmodp || !key.part.dmodq)
-		utils.addRSAMissing(key);
-	der.writeBuffer(key.part.dmodp.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.dmodq.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.iqmp.data, asn1.Ber.Integer);
-}
-
-function writePkcs1DSAPrivate(der, key) {
-	var ver = Buffer.from([0]);
-	der.writeBuffer(ver, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.g.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.y.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.x.data, asn1.Ber.Integer);
-}
-
-function writePkcs1DSAPublic(der, key) {
-	der.writeBuffer(key.part.y.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.p.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.q.data, asn1.Ber.Integer);
-	der.writeBuffer(key.part.g.data, asn1.Ber.Integer);
-}
-
-function writePkcs1ECDSAPublic(der, key) {
-	der.startSequence();
-
-	der.writeOID('1.2.840.10045.2.1'); /* ecPublicKey */
-	var curve = key.part.curve.data.toString();
-	var curveOid = algs.curves[curve].pkcs8oid;
-	assert.string(curveOid, 'a known ECDSA named curve');
-	der.writeOID(curveOid);
-
-	der.endSequence();
-
-	var Q = utils.ecNormalize(key.part.Q.data, true);
-	der.writeBuffer(Q, asn1.Ber.BitString);
-}
-
-function writePkcs1ECDSAPrivate(der, key) {
-	var ver = Buffer.from([1]);
-	der.writeBuffer(ver, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.d.data, asn1.Ber.OctetString);
-
-	der.startSequence(0xa0);
-	var curve = key.part.curve.data.toString();
-	var curveOid = algs.curves[curve].pkcs8oid;
-	assert.string(curveOid, 'a known ECDSA named curve');
-	der.writeOID(curveOid);
-	der.endSequence();
-
-	der.startSequence(0xa1);
-	var Q = utils.ecNormalize(key.part.Q.data, true);
-	der.writeBuffer(Q, asn1.Ber.BitString);
-	der.endSequence();
-}
-
-function writePkcs1EdDSAPrivate(der, key) {
-	var ver = Buffer.from([1]);
-	der.writeBuffer(ver, asn1.Ber.Integer);
-
-	der.writeBuffer(key.part.k.data, asn1.Ber.OctetString);
-
-	der.startSequence(0xa0);
-	der.writeOID('1.3.101.112');
-	der.endSequence();
-
-	der.startSequence(0xa1);
-	utils.writeBitString(der, key.part.A.data);
-	der.endSequence();
-}
-
-function writePkcs1EdDSAPublic(der, key) {
-	throw (new Error('Public keys are not supported for EdDSA PKCS#1'));
-}
-
-
-/***/ }),
-/* 328 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-var Key = __webpack_require__(27);
-var Fingerprint = __webpack_require__(156);
-var Signature = __webpack_require__(75);
-var PrivateKey = __webpack_require__(33);
-var Certificate = __webpack_require__(155);
-var Identity = __webpack_require__(158);
-var errs = __webpack_require__(74);
-
-module.exports = {
-	/* top-level classes */
-	Key: Key,
-	parseKey: Key.parse,
-	Fingerprint: Fingerprint,
-	parseFingerprint: Fingerprint.parse,
-	Signature: Signature,
-	parseSignature: Signature.parse,
-	PrivateKey: PrivateKey,
-	parsePrivateKey: PrivateKey.parse,
-	generatePrivateKey: PrivateKey.generate,
-	Certificate: Certificate,
-	parseCertificate: Certificate.parse,
-	createSelfSignedCertificate: Certificate.createSelfSigned,
-	createCertificate: Certificate.create,
-	Identity: Identity,
-	identityFromDN: Identity.parseDN,
-	identityForHost: Identity.forHost,
-	identityForUser: Identity.forUser,
-	identityForEmail: Identity.forEmail,
-
-	/* errors */
-	FingerprintFormatError: errs.FingerprintFormatError,
-	InvalidAlgorithmError: errs.InvalidAlgorithmError,
-	KeyParseError: errs.KeyParseError,
-	SignatureParseError: errs.SignatureParseError,
-	KeyEncryptedError: errs.KeyEncryptedError,
-	CertificateParseError: errs.CertificateParseError
-};
-
-
-/***/ }),
-/* 329 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const ansiRegex = __webpack_require__(948);
-
-module.exports = input => typeof input === 'string' ? input.replace(ansiRegex(), '') : input;
-
-
-/***/ }),
-/* 330 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var hasFlag = __webpack_require__(273);
-
-var support = function (level) {
-	if (level === 0) {
-		return false;
-	}
-
-	return {
-		level: level,
-		hasBasic: true,
-		has256: level >= 2,
-		has16m: level >= 3
-	};
-};
-
-var supportLevel = (function () {
-	if (hasFlag('no-color') ||
-		hasFlag('no-colors') ||
-		hasFlag('color=false')) {
-		return 0;
-	}
-
-	if (hasFlag('color=16m') ||
-		hasFlag('color=full') ||
-		hasFlag('color=truecolor')) {
-		return 3;
-	}
-
-	if (hasFlag('color=256')) {
-		return 2;
-	}
-
-	if (hasFlag('color') ||
-		hasFlag('colors') ||
-		hasFlag('color=true') ||
-		hasFlag('color=always')) {
-		return 1;
-	}
-
-	if (process.stdout && !process.stdout.isTTY) {
-		return 0;
-	}
-
-	if (process.platform === 'win32') {
-		return 1;
-	}
-
-	if ('CI' in process.env) {
-		if ('TRAVIS' in process.env || process.env.CI === 'Travis') {
-			return 1;
-		}
-
-		return 0;
-	}
-
-	if ('TEAMCITY_VERSION' in process.env) {
-		return process.env.TEAMCITY_VERSION.match(/^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/) === null ? 0 : 1;
-	}
-
-	if (/^(screen|xterm)-256(?:color)?/.test(process.env.TERM)) {
-		return 2;
-	}
-
-	if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
-		return 1;
-	}
-
-	if ('COLORTERM' in process.env) {
-		return 1;
-	}
-
-	if (process.env.TERM === 'dumb') {
-		return 0;
-	}
-
-	return 0;
-})();
-
-if (supportLevel === 0 && 'FORCE_COLOR' in process.env) {
-	supportLevel = 1;
-}
-
-module.exports = process && support(supportLevel);
-
-
-/***/ }),
-/* 331 */
-/***/ (function(module, exports) {
-
-module.exports = require("child_process");
-
-/***/ }),
-/* 332 */
-/***/ (function(module, exports) {
-
-module.exports = require("punycode");
-
-/***/ }),
-/* 333 */
-/***/ (function(module, exports) {
-
-module.exports = require("string_decoder");
-
-/***/ }),
-/* 334 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _access;
-
-function _load_access() {
-  return _access = _interopRequireWildcard(__webpack_require__(525));
-}
-
-var _add;
-
-function _load_add() {
-  return _add = _interopRequireWildcard(__webpack_require__(165));
-}
-
-var _audit;
-
-function _load_audit() {
-  return _audit = _interopRequireWildcard(__webpack_require__(353));
-}
-
-var _autoclean;
-
-function _load_autoclean() {
-  return _autoclean = _interopRequireWildcard(__webpack_require__(354));
-}
-
-var _bin;
-
-function _load_bin() {
-  return _bin = _interopRequireWildcard(__webpack_require__(526));
-}
-
-var _cache;
-
-function _load_cache() {
-  return _cache = _interopRequireWildcard(__webpack_require__(355));
-}
-
-var _check;
-
-function _load_check() {
-  return _check = _interopRequireWildcard(__webpack_require__(356));
-}
-
-var _config;
-
-function _load_config() {
-  return _config = _interopRequireWildcard(__webpack_require__(527));
-}
-
-var _create;
-
-function _load_create() {
-  return _create = _interopRequireWildcard(__webpack_require__(528));
-}
-
-var _exec;
-
-function _load_exec() {
-  return _exec = _interopRequireWildcard(__webpack_require__(529));
-}
-
-var _generateLockEntry;
-
-function _load_generateLockEntry() {
-  return _generateLockEntry = _interopRequireWildcard(__webpack_require__(530));
-}
-
-var _global;
-
-function _load_global() {
-  return _global = _interopRequireWildcard(__webpack_require__(121));
-}
-
-var _help;
-
-function _load_help() {
-  return _help = _interopRequireWildcard(__webpack_require__(531));
-}
-
-var _import;
-
-function _load_import() {
-  return _import = _interopRequireWildcard(__webpack_require__(532));
-}
-
-var _info;
-
-function _load_info() {
-  return _info = _interopRequireWildcard(__webpack_require__(533));
-}
-
-var _init;
-
-function _load_init() {
-  return _init = _interopRequireWildcard(__webpack_require__(534));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = _interopRequireWildcard(__webpack_require__(34));
-}
-
-var _licenses;
-
-function _load_licenses() {
-  return _licenses = _interopRequireWildcard(__webpack_require__(535));
-}
-
-var _link;
-
-function _load_link() {
-  return _link = _interopRequireWildcard(__webpack_require__(357));
-}
-
-var _login;
-
-function _load_login() {
-  return _login = _interopRequireWildcard(__webpack_require__(107));
-}
-
-var _logout;
-
-function _load_logout() {
-  return _logout = _interopRequireWildcard(__webpack_require__(536));
-}
-
-var _list;
-
-function _load_list() {
-  return _list = _interopRequireWildcard(__webpack_require__(358));
-}
-
-var _node;
-
-function _load_node() {
-  return _node = _interopRequireWildcard(__webpack_require__(537));
-}
-
-var _outdated;
-
-function _load_outdated() {
-  return _outdated = _interopRequireWildcard(__webpack_require__(538));
-}
-
-var _owner;
-
-function _load_owner() {
-  return _owner = _interopRequireWildcard(__webpack_require__(539));
-}
-
-var _pack;
-
-function _load_pack() {
-  return _pack = _interopRequireWildcard(__webpack_require__(166));
-}
-
-var _policies;
-
-function _load_policies() {
-  return _policies = _interopRequireWildcard(__webpack_require__(540));
-}
-
-var _publish;
-
-function _load_publish() {
-  return _publish = _interopRequireWildcard(__webpack_require__(541));
-}
-
-var _remove;
-
-function _load_remove() {
-  return _remove = _interopRequireWildcard(__webpack_require__(359));
-}
-
-var _run;
-
-function _load_run() {
-  return _run = _interopRequireWildcard(__webpack_require__(360));
-}
-
-var _tag;
-
-function _load_tag() {
-  return _tag = _interopRequireWildcard(__webpack_require__(361));
-}
-
-var _team;
-
-function _load_team() {
-  return _team = _interopRequireWildcard(__webpack_require__(542));
-}
-
-var _unplug;
-
-function _load_unplug() {
-  return _unplug = _interopRequireWildcard(__webpack_require__(544));
-}
-
-var _unlink;
-
-function _load_unlink() {
-  return _unlink = _interopRequireWildcard(__webpack_require__(543));
-}
-
-var _upgrade;
-
-function _load_upgrade() {
-  return _upgrade = _interopRequireWildcard(__webpack_require__(207));
-}
-
-var _version;
-
-function _load_version() {
-  return _version = _interopRequireWildcard(__webpack_require__(363));
-}
-
-var _versions;
-
-function _load_versions() {
-  return _versions = _interopRequireWildcard(__webpack_require__(545));
-}
-
-var _why;
-
-function _load_why() {
-  return _why = _interopRequireWildcard(__webpack_require__(546));
-}
-
-var _workspaces;
-
-function _load_workspaces() {
-  return _workspaces = _interopRequireWildcard(__webpack_require__(548));
-}
-
-var _workspace;
-
-function _load_workspace() {
-  return _workspace = _interopRequireWildcard(__webpack_require__(547));
-}
-
-var _upgradeInteractive;
-
-function _load_upgradeInteractive() {
-  return _upgradeInteractive = _interopRequireWildcard(__webpack_require__(362));
-}
-
-var _useless;
-
-function _load_useless() {
-  return _useless = _interopRequireDefault(__webpack_require__(524));
-}
-
-var _aliases;
-
-function _load_aliases() {
-  return _aliases = _interopRequireDefault(__webpack_require__(352));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-const chalk = __webpack_require__(30);
-
-
-const getDocsLink = name => `${(_constants || _load_constants()).YARN_DOCS}${name || ''}`;
-const getDocsInfo = name => 'Visit ' + chalk.bold(getDocsLink(name)) + ' for documentation about this command.';
-
-const commands = {
-  access: _access || _load_access(),
-  add: _add || _load_add(),
-  audit: _audit || _load_audit(),
-  autoclean: _autoclean || _load_autoclean(),
-  bin: _bin || _load_bin(),
-  cache: _cache || _load_cache(),
-  check: _check || _load_check(),
-  config: _config || _load_config(),
-  create: _create || _load_create(),
-  dedupe: (0, (_useless || _load_useless()).default)("The dedupe command isn't necessary. `yarn install` will already dedupe."),
-  exec: _exec || _load_exec(),
-  generateLockEntry: _generateLockEntry || _load_generateLockEntry(),
-  global: _global || _load_global(),
-  help: _help || _load_help(),
-  import: _import || _load_import(),
-  info: _info || _load_info(),
-  init: _init || _load_init(),
-  install: _install || _load_install(),
-  licenses: _licenses || _load_licenses(),
-  link: _link || _load_link(),
-  lockfile: (0, (_useless || _load_useless()).default)("The lockfile command isn't necessary. `yarn install` will produce a lockfile."),
-  login: _login || _load_login(),
-  logout: _logout || _load_logout(),
-  list: _list || _load_list(),
-  node: _node || _load_node(),
-  outdated: _outdated || _load_outdated(),
-  owner: _owner || _load_owner(),
-  pack: _pack || _load_pack(),
-  policies: _policies || _load_policies(),
-  prune: (0, (_useless || _load_useless()).default)("The prune command isn't necessary. `yarn install` will prune extraneous packages."),
-  publish: _publish || _load_publish(),
-  remove: _remove || _load_remove(),
-  run: _run || _load_run(),
-  tag: _tag || _load_tag(),
-  team: _team || _load_team(),
-  unplug: _unplug || _load_unplug(),
-  unlink: _unlink || _load_unlink(),
-  upgrade: _upgrade || _load_upgrade(),
-  version: _version || _load_version(),
-  versions: _versions || _load_versions(),
-  why: _why || _load_why(),
-  workspaces: _workspaces || _load_workspaces(),
-  workspace: _workspace || _load_workspace(),
-  upgradeInteractive: _upgradeInteractive || _load_upgradeInteractive()
-};
-
-for (const key in commands) {
-  commands[key].getDocsInfo = getDocsInfo(key);
-}
-
-for (const key in (_aliases || _load_aliases()).default) {
-  commands[key] = commands[(_aliases || _load_aliases()).default[key]];
-  commands[key].getDocsInfo = getDocsInfo(key);
-}
-
-exports.default = commands;
-
-/***/ }),
-/* 335 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getRcConfigForCwd = getRcConfigForCwd;
-exports.getRcConfigForFolder = getRcConfigForFolder;
-exports.getRcArgs = getRcArgs;
-
-var _fs;
-
-function _load_fs() {
-  return _fs = __webpack_require__(5);
-}
-
-var _path;
-
-function _load_path() {
-  return _path = __webpack_require__(0);
-}
-
-var _commander;
-
-function _load_commander() {
-  return _commander = _interopRequireDefault(__webpack_require__(338));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = __webpack_require__(19);
-}
-
-var _rc;
-
-function _load_rc() {
-  return _rc = _interopRequireWildcard(__webpack_require__(590));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-// Keys that will get resolved relative to the path of the rc file they belong to
-const PATH_KEYS = new Set(['yarn-path', 'cache-folder', 'global-folder', 'modules-folder', 'cwd', 'offline-cache-folder']);
-
-// given a cwd, load all .yarnrc files relative to it
-
-
-function getRcConfigForCwd(cwd, args) {
-  const config = {};
-
-  if (args.indexOf('--no-default-rc') === -1) {
-    Object.assign(config, (_rc || _load_rc()).findRc('yarn', cwd, (fileText, filePath) => {
-      return loadRcFile(fileText, filePath);
-    }));
-  }
-
-  for (let index = args.indexOf('--use-yarnrc'); index !== -1; index = args.indexOf('--use-yarnrc', index + 1)) {
-    const value = args[index + 1];
-
-    if (value && value.charAt(0) !== '-') {
-      Object.assign(config, loadRcFile((0, (_fs || _load_fs()).readFileSync)(value, 'utf8'), value));
-    }
-  }
-
-  return config;
-}
-
-function getRcConfigForFolder(cwd) {
-  const filePath = (0, (_path || _load_path()).resolve)(cwd, '.yarnrc');
-  if (!(0, (_fs || _load_fs()).existsSync)(filePath)) {
-    return {};
-  }
-
-  const fileText = (0, (_fs || _load_fs()).readFileSync)(filePath, 'utf8');
-  return loadRcFile(fileText, filePath);
-}
-
-function loadRcFile(fileText, filePath) {
-  var _parse = (0, (_lockfile || _load_lockfile()).parse)(fileText, 'yarnrc');
-
-  let values = _parse.object;
-
-
-  if (filePath.match(/\.yml$/)) {
-    values = { 'yarn-path': values.yarnPath };
-  }
-
-  // some keys reference directories so keep their relativity
-  for (const key in values) {
-    if (PATH_KEYS.has(key.replace(/^(--)?([^.]+\.)*/, ''))) {
-      values[key] = (0, (_path || _load_path()).resolve)((0, (_path || _load_path()).dirname)(filePath), values[key]);
-    }
-  }
-
-  return values;
-}
-
-// get the built of arguments of a .yarnrc chain of the passed cwd
-function buildRcArgs(cwd, args) {
-  const config = getRcConfigForCwd(cwd, args);
-
-  const argsForCommands = new Map();
-
-  for (const key in config) {
-    // args can be prefixed with the command name they're meant for, eg.
-    // `--install.check-files true`
-    const keyMatch = key.match(/^--(?:([^.]+)\.)?(.*)$/);
-    if (!keyMatch) {
-      continue;
-    }
-
-    const commandName = keyMatch[1] || '*';
-    const arg = keyMatch[2];
-    const value = config[key];
-
-    // create args for this command name if we didn't previously have them
-    const args = argsForCommands.get(commandName) || [];
-    argsForCommands.set(commandName, args);
-
-    // turn config value into appropriate cli flag
-    const option = (_commander || _load_commander()).default.optionFor(`--${arg}`);
-
-    // If commander doesn't recognize the option or it takes a value after it
-    if (!option || option.optional || option.required) {
-      args.push(`--${arg}`, value);
-    } else if (value === true) {
-      // we can't force remove an arg from cli
-      args.push(`--${arg}`);
-    }
-  }
-
-  return argsForCommands;
-}
-
-// extract the value of a --cwd arg if present
-function extractCwdArg(args) {
-  for (let i = 0, I = args.length; i < I; ++i) {
-    const arg = args[i];
-    if (arg === '--') {
-      return null;
-    } else if (arg === '--cwd') {
-      return args[i + 1];
-    }
-  }
-  return null;
-}
-
-// get a list of arguments from .yarnrc that apply to this commandName
-function getRcArgs(commandName, args, previousCwds = []) {
-  // for the cwd, use the --cwd arg if it was passed or else use process.cwd()
-  const origCwd = extractCwdArg(args) || process.cwd();
-
-  // get a map of command names and their arguments
-  const argMap = buildRcArgs(origCwd, args);
-
-  // concat wildcard arguments and arguments meant for this specific command
-  const newArgs = [...(argMap.get('*') || []), ...(argMap.get(commandName) || [])];
-
-  // check if the .yarnrc args specified a cwd
-  const newCwd = extractCwdArg(newArgs);
-  if (newCwd && newCwd !== origCwd) {
-    // ensure that we don't enter into a loop
-    if (previousCwds.indexOf(newCwd) !== -1) {
-      throw new Error(`Recursive .yarnrc files specifying --cwd flags. Bailing out.`);
-    }
-
-    //  if we have a new cwd then let's refetch the .yarnrc args relative to it
-    return getRcArgs(commandName, newArgs, previousCwds.concat(origCwd));
-  }
-
-  return newArgs;
-}
-
-/***/ }),
-/* 336 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.boolify = boolify;
-exports.boolifyWithDefault = boolifyWithDefault;
-const FALSY_STRINGS = new Set(['0', 'false']);
-
-function boolify(val) {
-  return !FALSY_STRINGS.has(val.toString().toLowerCase());
-}
-
-function boolifyWithDefault(val, defaultResult) {
-  return val === '' || val === null || val === undefined ? defaultResult : boolify(val);
-}
-
-/***/ }),
-/* 337 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.isOffline = isOffline;
-const os = __webpack_require__(46);
-
-const IGNORE_INTERFACES = ['lo0', 'awdl0', 'bridge0'];
-const LOCAL_IPS = ['127.0.0.1', '::1'];
-
-function isOffline() {
-  let interfaces;
-
-  try {
-    interfaces = os.networkInterfaces();
-  } catch (e) {
-    // As of October 2016, Windows Subsystem for Linux (WSL) does not support
-    // the os.networkInterfaces() call and throws instead. For this platform,
-    // assume we are online.
-    if (e.syscall === 'uv_interface_addresses') {
-      return false;
-    } else {
-      throw e;
-    }
-  }
-
-  for (const name in interfaces) {
-    if (IGNORE_INTERFACES.indexOf(name) >= 0) {
-      continue;
-    }
-
-    const addrs = interfaces[name];
-    for (var _iterator = addrs, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const addr = _ref;
-
-      if (LOCAL_IPS.indexOf(addr.address) < 0) {
-        // found a possible remote ip
-        return false;
-      }
-    }
-  }
-
-  return true;
-}
-
-/***/ }),
-/* 338 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/**
- * Module dependencies.
- */
-
-var EventEmitter = __webpack_require__(77).EventEmitter;
-var spawn = __webpack_require__(331).spawn;
-var path = __webpack_require__(0);
-var dirname = path.dirname;
-var basename = path.basename;
-var fs = __webpack_require__(5);
-
-/**
- * Inherit `Command` from `EventEmitter.prototype`.
- */
-
-__webpack_require__(3).inherits(Command, EventEmitter);
-
-/**
- * Expose the root command.
- */
-
-exports = module.exports = new Command();
-
-/**
- * Expose `Command`.
- */
-
-exports.Command = Command;
-
-/**
- * Expose `Option`.
- */
-
-exports.Option = Option;
-
-/**
- * Initialize a new `Option` with the given `flags` and `description`.
- *
- * @param {String} flags
- * @param {String} description
- * @api public
- */
-
-function Option(flags, description) {
-  this.flags = flags;
-  this.required = flags.indexOf('<') >= 0;
-  this.optional = flags.indexOf('[') >= 0;
-  this.bool = flags.indexOf('-no-') === -1;
-  flags = flags.split(/[ ,|]+/);
-  if (flags.length > 1 && !/^[[<]/.test(flags[1])) this.short = flags.shift();
-  this.long = flags.shift();
-  this.description = description || '';
-}
-
-/**
- * Return option name.
- *
- * @return {String}
- * @api private
- */
-
-Option.prototype.name = function() {
-  return this.long
-    .replace('--', '')
-    .replace('no-', '');
-};
-
-/**
- * Return option name, in a camelcase format that can be used
- * as a object attribute key.
- *
- * @return {String}
- * @api private
- */
-
-Option.prototype.attributeName = function() {
-  return camelcase(this.name());
-};
-
-/**
- * Check if `arg` matches the short or long flag.
- *
- * @param {String} arg
- * @return {Boolean}
- * @api private
- */
-
-Option.prototype.is = function(arg) {
-  return this.short === arg || this.long === arg;
-};
-
-/**
- * Initialize a new `Command`.
- *
- * @param {String} name
- * @api public
- */
-
-function Command(name) {
-  this.commands = [];
-  this.options = [];
-  this._execs = {};
-  this._allowUnknownOption = false;
-  this._args = [];
-  this._name = name || '';
-}
-
-/**
- * Add command `name`.
- *
- * The `.action()` callback is invoked when the
- * command `name` is specified via __ARGV__,
- * and the remaining arguments are applied to the
- * function for access.
- *
- * When the `name` is "*" an un-matched command
- * will be passed as the first arg, followed by
- * the rest of __ARGV__ remaining.
- *
- * Examples:
- *
- *      program
- *        .version('0.0.1')
- *        .option('-C, --chdir <path>', 'change the working directory')
- *        .option('-c, --config <path>', 'set config path. defaults to ./deploy.conf')
- *        .option('-T, --no-tests', 'ignore test hook')
- *
- *      program
- *        .command('setup')
- *        .description('run remote setup commands')
- *        .action(function() {
- *          console.log('setup');
- *        });
- *
- *      program
- *        .command('exec <cmd>')
- *        .description('run the given remote command')
- *        .action(function(cmd) {
- *          console.log('exec "%s"', cmd);
- *        });
- *
- *      program
- *        .command('teardown <dir> [otherDirs...]')
- *        .description('run teardown commands')
- *        .action(function(dir, otherDirs) {
- *          console.log('dir "%s"', dir);
- *          if (otherDirs) {
- *            otherDirs.forEach(function (oDir) {
- *              console.log('dir "%s"', oDir);
- *            });
- *          }
- *        });
- *
- *      program
- *        .command('*')
- *        .description('deploy the given env')
- *        .action(function(env) {
- *          console.log('deploying "%s"', env);
- *        });
- *
- *      program.parse(process.argv);
-  *
- * @param {String} name
- * @param {String} [desc] for git-style sub-commands
- * @return {Command} the new command
- * @api public
- */
-
-Command.prototype.command = function(name, desc, opts) {
-  if (typeof desc === 'object' && desc !== null) {
-    opts = desc;
-    desc = null;
-  }
-  opts = opts || {};
-  var args = name.split(/ +/);
-  var cmd = new Command(args.shift());
-
-  if (desc) {
-    cmd.description(desc);
-    this.executables = true;
-    this._execs[cmd._name] = true;
-    if (opts.isDefault) this.defaultExecutable = cmd._name;
-  }
-  cmd._noHelp = !!opts.noHelp;
-  this.commands.push(cmd);
-  cmd.parseExpectedArgs(args);
-  cmd.parent = this;
-
-  if (desc) return this;
-  return cmd;
-};
-
-/**
- * Define argument syntax for the top-level command.
- *
- * @api public
- */
-
-Command.prototype.arguments = function(desc) {
-  return this.parseExpectedArgs(desc.split(/ +/));
-};
-
-/**
- * Add an implicit `help [cmd]` subcommand
- * which invokes `--help` for the given command.
- *
- * @api private
- */
-
-Command.prototype.addImplicitHelpCommand = function() {
-  this.command('help [cmd]', 'display help for [cmd]');
-};
-
-/**
- * Parse expected `args`.
- *
- * For example `["[type]"]` becomes `[{ required: false, name: 'type' }]`.
- *
- * @param {Array} args
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.parseExpectedArgs = function(args) {
-  if (!args.length) return;
-  var self = this;
-  args.forEach(function(arg) {
-    var argDetails = {
-      required: false,
-      name: '',
-      variadic: false
-    };
-
-    switch (arg[0]) {
-      case '<':
-        argDetails.required = true;
-        argDetails.name = arg.slice(1, -1);
-        break;
-      case '[':
-        argDetails.name = arg.slice(1, -1);
-        break;
-    }
-
-    if (argDetails.name.length > 3 && argDetails.name.slice(-3) === '...') {
-      argDetails.variadic = true;
-      argDetails.name = argDetails.name.slice(0, -3);
-    }
-    if (argDetails.name) {
-      self._args.push(argDetails);
-    }
-  });
-  return this;
-};
-
-/**
- * Register callback `fn` for the command.
- *
- * Examples:
- *
- *      program
- *        .command('help')
- *        .description('display verbose help')
- *        .action(function() {
- *           // output help here
- *        });
- *
- * @param {Function} fn
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.action = function(fn) {
-  var self = this;
-  var listener = function(args, unknown) {
-    // Parse any so-far unknown options
-    args = args || [];
-    unknown = unknown || [];
-
-    var parsed = self.parseOptions(unknown);
-
-    // Output help if necessary
-    outputHelpIfNecessary(self, parsed.unknown);
-
-    // If there are still any unknown options, then we simply
-    // die, unless someone asked for help, in which case we give it
-    // to them, and then we die.
-    if (parsed.unknown.length > 0) {
-      self.unknownOption(parsed.unknown[0]);
-    }
-
-    // Leftover arguments need to be pushed back. Fixes issue #56
-    if (parsed.args.length) args = parsed.args.concat(args);
-
-    self._args.forEach(function(arg, i) {
-      if (arg.required && args[i] == null) {
-        self.missingArgument(arg.name);
-      } else if (arg.variadic) {
-        if (i !== self._args.length - 1) {
-          self.variadicArgNotLast(arg.name);
-        }
-
-        args[i] = args.splice(i);
-      }
-    });
-
-    // Always append ourselves to the end of the arguments,
-    // to make sure we match the number of arguments the user
-    // expects
-    if (self._args.length) {
-      args[self._args.length] = self;
-    } else {
-      args.push(self);
-    }
-
-    fn.apply(self, args);
-  };
-  var parent = this.parent || this;
-  var name = parent === this ? '*' : this._name;
-  parent.on('command:' + name, listener);
-  if (this._alias) parent.on('command:' + this._alias, listener);
-  return this;
-};
-
-/**
- * Define option with `flags`, `description` and optional
- * coercion `fn`.
- *
- * The `flags` string should contain both the short and long flags,
- * separated by comma, a pipe or space. The following are all valid
- * all will output this way when `--help` is used.
- *
- *    "-p, --pepper"
- *    "-p|--pepper"
- *    "-p --pepper"
- *
- * Examples:
- *
- *     // simple boolean defaulting to false
- *     program.option('-p, --pepper', 'add pepper');
- *
- *     --pepper
- *     program.pepper
- *     // => Boolean
- *
- *     // simple boolean defaulting to true
- *     program.option('-C, --no-cheese', 'remove cheese');
- *
- *     program.cheese
- *     // => true
- *
- *     --no-cheese
- *     program.cheese
- *     // => false
- *
- *     // required argument
- *     program.option('-C, --chdir <path>', 'change the working directory');
- *
- *     --chdir /tmp
- *     program.chdir
- *     // => "/tmp"
- *
- *     // optional argument
- *     program.option('-c, --cheese [type]', 'add cheese [marble]');
- *
- * @param {String} flags
- * @param {String} description
- * @param {Function|*} [fn] or default
- * @param {*} [defaultValue]
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.option = function(flags, description, fn, defaultValue) {
-  var self = this,
-    option = new Option(flags, description),
-    oname = option.name(),
-    name = option.attributeName();
-
-  // default as 3rd arg
-  if (typeof fn !== 'function') {
-    if (fn instanceof RegExp) {
-      var regex = fn;
-      fn = function(val, def) {
-        var m = regex.exec(val);
-        return m ? m[0] : def;
-      };
-    } else {
-      defaultValue = fn;
-      fn = null;
-    }
-  }
-
-  // preassign default value only for --no-*, [optional], or <required>
-  if (!option.bool || option.optional || option.required) {
-    // when --no-* we make sure default is true
-    if (!option.bool) defaultValue = true;
-    // preassign only if we have a default
-    if (defaultValue !== undefined) {
-      self[name] = defaultValue;
-      option.defaultValue = defaultValue;
-    }
-  }
-
-  // register the option
-  this.options.push(option);
-
-  // when it's passed assign the value
-  // and conditionally invoke the callback
-  this.on('option:' + oname, function(val) {
-    // coercion
-    if (val !== null && fn) {
-      val = fn(val, self[name] === undefined ? defaultValue : self[name]);
-    }
-
-    // unassigned or bool
-    if (typeof self[name] === 'boolean' || typeof self[name] === 'undefined') {
-      // if no value, bool true, and we have a default, then use it!
-      if (val == null) {
-        self[name] = option.bool
-          ? defaultValue || true
-          : false;
-      } else {
-        self[name] = val;
-      }
-    } else if (val !== null) {
-      // reassign
-      self[name] = val;
-    }
-  });
-
-  return this;
-};
-
-/**
- * Allow unknown options on the command line.
- *
- * @param {Boolean} arg if `true` or omitted, no error will be thrown
- * for unknown options.
- * @api public
- */
-Command.prototype.allowUnknownOption = function(arg) {
-  this._allowUnknownOption = arguments.length === 0 || arg;
-  return this;
-};
-
-/**
- * Parse `argv`, settings options and invoking commands when defined.
- *
- * @param {Array} argv
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.parse = function(argv) {
-  // implicit help
-  if (this.executables) this.addImplicitHelpCommand();
-
-  // store raw args
-  this.rawArgs = argv;
-
-  // guess name
-  this._name = this._name || basename(argv[1], '.js');
-
-  // github-style sub-commands with no sub-command
-  if (this.executables && argv.length < 3 && !this.defaultExecutable) {
-    // this user needs help
-    argv.push('--help');
-  }
-
-  // process argv
-  var parsed = this.parseOptions(this.normalize(argv.slice(2)));
-  var args = this.args = parsed.args;
-
-  var result = this.parseArgs(this.args, parsed.unknown);
-
-  // executable sub-commands
-  var name = result.args[0];
-
-  var aliasCommand = null;
-  // check alias of sub commands
-  if (name) {
-    aliasCommand = this.commands.filter(function(command) {
-      return command.alias() === name;
-    })[0];
-  }
-
-  if (this._execs[name] && typeof this._execs[name] !== 'function') {
-    return this.executeSubCommand(argv, args, parsed.unknown);
-  } else if (aliasCommand) {
-    // is alias of a subCommand
-    args[0] = aliasCommand._name;
-    return this.executeSubCommand(argv, args, parsed.unknown);
-  } else if (this.defaultExecutable) {
-    // use the default subcommand
-    args.unshift(this.defaultExecutable);
-    return this.executeSubCommand(argv, args, parsed.unknown);
-  }
-
-  return result;
-};
-
-/**
- * Execute a sub-command executable.
- *
- * @param {Array} argv
- * @param {Array} args
- * @param {Array} unknown
- * @api private
- */
-
-Command.prototype.executeSubCommand = function(argv, args, unknown) {
-  args = args.concat(unknown);
-
-  if (!args.length) this.help();
-  if (args[0] === 'help' && args.length === 1) this.help();
-
-  // <cmd> --help
-  if (args[0] === 'help') {
-    args[0] = args[1];
-    args[1] = '--help';
-  }
-
-  // executable
-  var f = argv[1];
-  // name of the subcommand, link `pm-install`
-  var bin = basename(f, '.js') + '-' + args[0];
-
-  // In case of globally installed, get the base dir where executable
-  //  subcommand file should be located at
-  var baseDir,
-    link = fs.lstatSync(f).isSymbolicLink() ? fs.readlinkSync(f) : f;
-
-  // when symbolink is relative path
-  if (link !== f && link.charAt(0) !== '/') {
-    link = path.join(dirname(f), link);
-  }
-  baseDir = dirname(link);
-
-  // prefer local `./<bin>` to bin in the $PATH
-  var localBin = path.join(baseDir, bin);
-
-  // whether bin file is a js script with explicit `.js` extension
-  var isExplicitJS = false;
-  if (exists(localBin + '.js')) {
-    bin = localBin + '.js';
-    isExplicitJS = true;
-  } else if (exists(localBin)) {
-    bin = localBin;
-  }
-
-  args = args.slice(1);
-
-  var proc;
-  if (process.platform !== 'win32') {
-    if (isExplicitJS) {
-      args.unshift(bin);
-      // add executable arguments to spawn
-      args = (process.execArgv || []).concat(args);
-
-      proc = spawn(process.argv[0], args, { stdio: 'inherit', customFds: [0, 1, 2] });
-    } else {
-      proc = spawn(bin, args, { stdio: 'inherit', customFds: [0, 1, 2] });
-    }
-  } else {
-    args.unshift(bin);
-    proc = spawn(process.execPath, args, { stdio: 'inherit' });
-  }
-
-  var signals = ['SIGUSR1', 'SIGUSR2', 'SIGTERM', 'SIGINT', 'SIGHUP'];
-  signals.forEach(function(signal) {
-    process.on(signal, function() {
-      if (proc.killed === false && proc.exitCode === null) {
-        proc.kill(signal);
-      }
-    });
-  });
-  proc.on('close', process.exit.bind(process));
-  proc.on('error', function(err) {
-    if (err.code === 'ENOENT') {
-      console.error('\n  %s(1) does not exist, try --help\n', bin);
-    } else if (err.code === 'EACCES') {
-      console.error('\n  %s(1) not executable. try chmod or run with root\n', bin);
-    }
-    process.exit(1);
-  });
-
-  // Store the reference to the child process
-  this.runningCommand = proc;
-};
-
-/**
- * Normalize `args`, splitting joined short flags. For example
- * the arg "-abc" is equivalent to "-a -b -c".
- * This also normalizes equal sign and splits "--abc=def" into "--abc def".
- *
- * @param {Array} args
- * @return {Array}
- * @api private
- */
-
-Command.prototype.normalize = function(args) {
-  var ret = [],
-    arg,
-    lastOpt,
-    index;
-
-  for (var i = 0, len = args.length; i < len; ++i) {
-    arg = args[i];
-    if (i > 0) {
-      lastOpt = this.optionFor(args[i - 1]);
-    }
-
-    if (arg === '--') {
-      // Honor option terminator
-      ret = ret.concat(args.slice(i));
-      break;
-    } else if (lastOpt && lastOpt.required) {
-      ret.push(arg);
-    } else if (arg.length > 1 && arg[0] === '-' && arg[1] !== '-') {
-      arg.slice(1).split('').forEach(function(c) {
-        ret.push('-' + c);
-      });
-    } else if (/^--/.test(arg) && ~(index = arg.indexOf('='))) {
-      ret.push(arg.slice(0, index), arg.slice(index + 1));
-    } else {
-      ret.push(arg);
-    }
-  }
-
-  return ret;
-};
-
-/**
- * Parse command `args`.
- *
- * When listener(s) are available those
- * callbacks are invoked, otherwise the "*"
- * event is emitted and those actions are invoked.
- *
- * @param {Array} args
- * @return {Command} for chaining
- * @api private
- */
-
-Command.prototype.parseArgs = function(args, unknown) {
-  var name;
-
-  if (args.length) {
-    name = args[0];
-    if (this.listeners('command:' + name).length) {
-      this.emit('command:' + args.shift(), args, unknown);
-    } else {
-      this.emit('command:*', args);
-    }
-  } else {
-    outputHelpIfNecessary(this, unknown);
-
-    // If there were no args and we have unknown options,
-    // then they are extraneous and we need to error.
-    if (unknown.length > 0) {
-      this.unknownOption(unknown[0]);
-    }
-  }
-
-  return this;
-};
-
-/**
- * Return an option matching `arg` if any.
- *
- * @param {String} arg
- * @return {Option}
- * @api private
- */
-
-Command.prototype.optionFor = function(arg) {
-  for (var i = 0, len = this.options.length; i < len; ++i) {
-    if (this.options[i].is(arg)) {
-      return this.options[i];
-    }
-  }
-};
-
-/**
- * Parse options from `argv` returning `argv`
- * void of these options.
- *
- * @param {Array} argv
- * @return {Array}
- * @api public
- */
-
-Command.prototype.parseOptions = function(argv) {
-  var args = [],
-    len = argv.length,
-    literal,
-    option,
-    arg;
-
-  var unknownOptions = [];
-
-  // parse options
-  for (var i = 0; i < len; ++i) {
-    arg = argv[i];
-
-    // literal args after --
-    if (literal) {
-      args.push(arg);
-      continue;
-    }
-
-    if (arg === '--') {
-      literal = true;
-      continue;
-    }
-
-    // find matching Option
-    option = this.optionFor(arg);
-
-    // option is defined
-    if (option) {
-      // requires arg
-      if (option.required) {
-        arg = argv[++i];
-        if (arg == null) return this.optionMissingArgument(option);
-        this.emit('option:' + option.name(), arg);
-      // optional arg
-      } else if (option.optional) {
-        arg = argv[i + 1];
-        if (arg == null || (arg[0] === '-' && arg !== '-')) {
-          arg = null;
-        } else {
-          ++i;
-        }
-        this.emit('option:' + option.name(), arg);
-      // bool
-      } else {
-        this.emit('option:' + option.name());
-      }
-      continue;
-    }
-
-    // looks like an option
-    if (arg.length > 1 && arg[0] === '-') {
-      unknownOptions.push(arg);
-
-      // If the next argument looks like it might be
-      // an argument for this option, we pass it on.
-      // If it isn't, then it'll simply be ignored
-      if ((i + 1) < argv.length && argv[i + 1][0] !== '-') {
-        unknownOptions.push(argv[++i]);
-      }
-      continue;
-    }
-
-    // arg
-    args.push(arg);
-  }
-
-  return { args: args, unknown: unknownOptions };
-};
-
-/**
- * Return an object containing options as key-value pairs
- *
- * @return {Object}
- * @api public
- */
-Command.prototype.opts = function() {
-  var result = {},
-    len = this.options.length;
-
-  for (var i = 0; i < len; i++) {
-    var key = this.options[i].attributeName();
-    result[key] = key === this._versionOptionName ? this._version : this[key];
-  }
-  return result;
-};
-
-/**
- * Argument `name` is missing.
- *
- * @param {String} name
- * @api private
- */
-
-Command.prototype.missingArgument = function(name) {
-  console.error();
-  console.error("  error: missing required argument `%s'", name);
-  console.error();
-  process.exit(1);
-};
-
-/**
- * `Option` is missing an argument, but received `flag` or nothing.
- *
- * @param {String} option
- * @param {String} flag
- * @api private
- */
-
-Command.prototype.optionMissingArgument = function(option, flag) {
-  console.error();
-  if (flag) {
-    console.error("  error: option `%s' argument missing, got `%s'", option.flags, flag);
-  } else {
-    console.error("  error: option `%s' argument missing", option.flags);
-  }
-  console.error();
-  process.exit(1);
-};
-
-/**
- * Unknown option `flag`.
- *
- * @param {String} flag
- * @api private
- */
-
-Command.prototype.unknownOption = function(flag) {
-  if (this._allowUnknownOption) return;
-  console.error();
-  console.error("  error: unknown option `%s'", flag);
-  console.error();
-  process.exit(1);
-};
-
-/**
- * Variadic argument with `name` is not the last argument as required.
- *
- * @param {String} name
- * @api private
- */
-
-Command.prototype.variadicArgNotLast = function(name) {
-  console.error();
-  console.error("  error: variadic arguments must be last `%s'", name);
-  console.error();
-  process.exit(1);
-};
-
-/**
- * Set the program version to `str`.
- *
- * This method auto-registers the "-V, --version" flag
- * which will print the version number when passed.
- *
- * @param {String} str
- * @param {String} [flags]
- * @return {Command} for chaining
- * @api public
- */
-
-Command.prototype.version = function(str, flags) {
-  if (arguments.length === 0) return this._version;
-  this._version = str;
-  flags = flags || '-V, --version';
-  var versionOption = new Option(flags, 'output the version number');
-  this._versionOptionName = versionOption.long.substr(2) || 'version';
-  this.options.push(versionOption);
-  this.on('option:' + this._versionOptionName, function() {
-    process.stdout.write(str + '\n');
-    process.exit(0);
-  });
-  return this;
-};
-
-/**
- * Set the description to `str`.
- *
- * @param {String} str
- * @param {Object} argsDescription
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.description = function(str, argsDescription) {
-  if (arguments.length === 0) return this._description;
-  this._description = str;
-  this._argsDescription = argsDescription;
-  return this;
-};
-
-/**
- * Set an alias for the command
- *
- * @param {String} alias
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.alias = function(alias) {
-  var command = this;
-  if (this.commands.length !== 0) {
-    command = this.commands[this.commands.length - 1];
-  }
-
-  if (arguments.length === 0) return command._alias;
-
-  if (alias === command._name) throw new Error('Command alias can\'t be the same as its name');
-
-  command._alias = alias;
-  return this;
-};
-
-/**
- * Set / get the command usage `str`.
- *
- * @param {String} str
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.usage = function(str) {
-  var args = this._args.map(function(arg) {
-    return humanReadableArgName(arg);
-  });
-
-  var usage = '[options]' +
-    (this.commands.length ? ' [command]' : '') +
-    (this._args.length ? ' ' + args.join(' ') : '');
-
-  if (arguments.length === 0) return this._usage || usage;
-  this._usage = str;
-
-  return this;
-};
-
-/**
- * Get or set the name of the command
- *
- * @param {String} str
- * @return {String|Command}
- * @api public
- */
-
-Command.prototype.name = function(str) {
-  if (arguments.length === 0) return this._name;
-  this._name = str;
-  return this;
-};
-
-/**
- * Return prepared commands.
- *
- * @return {Array}
- * @api private
- */
-
-Command.prototype.prepareCommands = function() {
-  return this.commands.filter(function(cmd) {
-    return !cmd._noHelp;
-  }).map(function(cmd) {
-    var args = cmd._args.map(function(arg) {
-      return humanReadableArgName(arg);
-    }).join(' ');
-
-    return [
-      cmd._name +
-        (cmd._alias ? '|' + cmd._alias : '') +
-        (cmd.options.length ? ' [options]' : '') +
-        (args ? ' ' + args : ''),
-      cmd._description
-    ];
-  });
-};
-
-/**
- * Return the largest command length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestCommandLength = function() {
-  var commands = this.prepareCommands();
-  return commands.reduce(function(max, command) {
-    return Math.max(max, command[0].length);
-  }, 0);
-};
-
-/**
- * Return the largest option length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestOptionLength = function() {
-  var options = [].slice.call(this.options);
-  options.push({
-    flags: '-h, --help'
-  });
-  return options.reduce(function(max, option) {
-    return Math.max(max, option.flags.length);
-  }, 0);
-};
-
-/**
- * Return the largest arg length.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.largestArgLength = function() {
-  return this._args.reduce(function(max, arg) {
-    return Math.max(max, arg.name.length);
-  }, 0);
-};
-
-/**
- * Return the pad width.
- *
- * @return {Number}
- * @api private
- */
-
-Command.prototype.padWidth = function() {
-  var width = this.largestOptionLength();
-  if (this._argsDescription && this._args.length) {
-    if (this.largestArgLength() > width) {
-      width = this.largestArgLength();
-    }
-  }
-
-  if (this.commands && this.commands.length) {
-    if (this.largestCommandLength() > width) {
-      width = this.largestCommandLength();
-    }
-  }
-
-  return width;
-};
-
-/**
- * Return help for options.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.optionHelp = function() {
-  var width = this.padWidth();
-
-  // Append the help information
-  return this.options.map(function(option) {
-    return pad(option.flags, width) + '  ' + option.description +
-      ((option.bool && option.defaultValue !== undefined) ? ' (default: ' + option.defaultValue + ')' : '');
-  }).concat([pad('-h, --help', width) + '  ' + 'output usage information'])
-    .join('\n');
-};
-
-/**
- * Return command help documentation.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.commandHelp = function() {
-  if (!this.commands.length) return '';
-
-  var commands = this.prepareCommands();
-  var width = this.padWidth();
-
-  return [
-    '  Commands:',
-    '',
-    commands.map(function(cmd) {
-      var desc = cmd[1] ? '  ' + cmd[1] : '';
-      return (desc ? pad(cmd[0], width) : cmd[0]) + desc;
-    }).join('\n').replace(/^/gm, '    '),
-    ''
-  ].join('\n');
-};
-
-/**
- * Return program help documentation.
- *
- * @return {String}
- * @api private
- */
-
-Command.prototype.helpInformation = function() {
-  var desc = [];
-  if (this._description) {
-    desc = [
-      '  ' + this._description,
-      ''
-    ];
-
-    var argsDescription = this._argsDescription;
-    if (argsDescription && this._args.length) {
-      var width = this.padWidth();
-      desc.push('  Arguments:');
-      desc.push('');
-      this._args.forEach(function(arg) {
-        desc.push('    ' + pad(arg.name, width) + '  ' + argsDescription[arg.name]);
-      });
-      desc.push('');
-    }
-  }
-
-  var cmdName = this._name;
-  if (this._alias) {
-    cmdName = cmdName + '|' + this._alias;
-  }
-  var usage = [
-    '',
-    '  Usage: ' + cmdName + ' ' + this.usage(),
-    ''
-  ];
-
-  var cmds = [];
-  var commandHelp = this.commandHelp();
-  if (commandHelp) cmds = [commandHelp];
-
-  var options = [
-    '  Options:',
-    '',
-    '' + this.optionHelp().replace(/^/gm, '    '),
-    ''
-  ];
-
-  return usage
-    .concat(desc)
-    .concat(options)
-    .concat(cmds)
-    .join('\n');
-};
-
-/**
- * Output help information for this command
- *
- * @api public
- */
-
-Command.prototype.outputHelp = function(cb) {
-  if (!cb) {
-    cb = function(passthru) {
-      return passthru;
-    };
-  }
-  process.stdout.write(cb(this.helpInformation()));
-  this.emit('--help');
-};
-
-/**
- * Output help information and exit.
- *
- * @api public
- */
-
-Command.prototype.help = function(cb) {
-  this.outputHelp(cb);
-  process.exit();
-};
-
-/**
- * Camel-case the given `flag`
- *
- * @param {String} flag
- * @return {String}
- * @api private
- */
-
-function camelcase(flag) {
-  return flag.split('-').reduce(function(str, word) {
-    return str + word[0].toUpperCase() + word.slice(1);
-  });
-}
-
-/**
- * Pad `str` to `width`.
- *
- * @param {String} str
- * @param {Number} width
- * @return {String}
- * @api private
- */
-
-function pad(str, width) {
-  var len = Math.max(0, width - str.length);
-  return str + Array(len + 1).join(' ');
-}
-
-/**
- * Output help information if necessary
- *
- * @param {Command} command to output help for
- * @param {Array} array of options to search for -h or --help
- * @api private
- */
-
-function outputHelpIfNecessary(cmd, options) {
-  options = options || [];
-  for (var i = 0; i < options.length; i++) {
-    if (options[i] === '--help' || options[i] === '-h') {
-      cmd.outputHelp();
-      process.exit(0);
-    }
-  }
-}
-
-/**
- * Takes an argument an returns its human readable equivalent for help usage.
- *
- * @param {Object} arg
- * @return {String}
- * @api private
- */
-
-function humanReadableArgName(arg) {
-  var nameOutput = arg.name + (arg.variadic === true ? '...' : '');
-
-  return arg.required
-    ? '<' + nameOutput + '>'
-    : '[' + nameOutput + ']';
-}
-
-// for versions before node v0.8 when there weren't `fs.existsSync`
-function exists(file) {
-  try {
-    if (fs.statSync(file).isFile()) {
-      return true;
-    }
-  } catch (e) {
-    return false;
-  }
-}
-
-
-/***/ }),
-/* 339 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var util = __webpack_require__(106);
-
-module.exports = SchemaObject;
-
-function SchemaObject(obj) {
-  util.copy(obj, this);
-}
-
-
-/***/ }),
-/* 340 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate__limit(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $errorKeyword;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $isMax = $keyword == 'maximum',
-    $exclusiveKeyword = $isMax ? 'exclusiveMaximum' : 'exclusiveMinimum',
-    $schemaExcl = it.schema[$exclusiveKeyword],
-    $isDataExcl = it.opts.$data && $schemaExcl && $schemaExcl.$data,
-    $op = $isMax ? '<' : '>',
-    $notOp = $isMax ? '>' : '<',
-    $errorKeyword = undefined;
-  if ($isDataExcl) {
-    var $schemaValueExcl = it.util.getData($schemaExcl.$data, $dataLvl, it.dataPathArr),
-      $exclusive = 'exclusive' + $lvl,
-      $exclType = 'exclType' + $lvl,
-      $exclIsNumber = 'exclIsNumber' + $lvl,
-      $opExpr = 'op' + $lvl,
-      $opStr = '\' + ' + $opExpr + ' + \'';
-    out += ' var schemaExcl' + ($lvl) + ' = ' + ($schemaValueExcl) + '; ';
-    $schemaValueExcl = 'schemaExcl' + $lvl;
-    out += ' var ' + ($exclusive) + '; var ' + ($exclType) + ' = typeof ' + ($schemaValueExcl) + '; if (' + ($exclType) + ' != \'boolean\' && ' + ($exclType) + ' != \'undefined\' && ' + ($exclType) + ' != \'number\') { ';
-    var $errorKeyword = $exclusiveKeyword;
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = ''; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ($errorKeyword || '_exclusiveLimit') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'' + ($exclusiveKeyword) + ' should be boolean\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    var __err = out;
-    out = $$outStack.pop();
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError([' + (__err) + ']); ';
-      } else {
-        out += ' validate.errors = [' + (__err) + ']; return false; ';
-      }
-    } else {
-      out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    }
-    out += ' } else if ( ';
-    if ($isData) {
-      out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-    }
-    out += ' ' + ($exclType) + ' == \'number\' ? ( (' + ($exclusive) + ' = ' + ($schemaValue) + ' === undefined || ' + ($schemaValueExcl) + ' ' + ($op) + '= ' + ($schemaValue) + ') ? ' + ($data) + ' ' + ($notOp) + '= ' + ($schemaValueExcl) + ' : ' + ($data) + ' ' + ($notOp) + ' ' + ($schemaValue) + ' ) : ( (' + ($exclusive) + ' = ' + ($schemaValueExcl) + ' === true) ? ' + ($data) + ' ' + ($notOp) + '= ' + ($schemaValue) + ' : ' + ($data) + ' ' + ($notOp) + ' ' + ($schemaValue) + ' ) || ' + ($data) + ' !== ' + ($data) + ') { var op' + ($lvl) + ' = ' + ($exclusive) + ' ? \'' + ($op) + '\' : \'' + ($op) + '=\';';
-  } else {
-    var $exclIsNumber = typeof $schemaExcl == 'number',
-      $opStr = $op;
-    if ($exclIsNumber && $isData) {
-      var $opExpr = '\'' + $opStr + '\'';
-      out += ' if ( ';
-      if ($isData) {
-        out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-      }
-      out += ' ( ' + ($schemaValue) + ' === undefined || ' + ($schemaExcl) + ' ' + ($op) + '= ' + ($schemaValue) + ' ? ' + ($data) + ' ' + ($notOp) + '= ' + ($schemaExcl) + ' : ' + ($data) + ' ' + ($notOp) + ' ' + ($schemaValue) + ' ) || ' + ($data) + ' !== ' + ($data) + ') { ';
-    } else {
-      if ($exclIsNumber && $schema === undefined) {
-        $exclusive = true;
-        $errorKeyword = $exclusiveKeyword;
-        $errSchemaPath = it.errSchemaPath + '/' + $exclusiveKeyword;
-        $schemaValue = $schemaExcl;
-        $notOp += '=';
-      } else {
-        if ($exclIsNumber) $schemaValue = Math[$isMax ? 'min' : 'max']($schemaExcl, $schema);
-        if ($schemaExcl === ($exclIsNumber ? $schemaValue : true)) {
-          $exclusive = true;
-          $errorKeyword = $exclusiveKeyword;
-          $errSchemaPath = it.errSchemaPath + '/' + $exclusiveKeyword;
-          $notOp += '=';
-        } else {
-          $exclusive = false;
-          $opStr += '=';
-        }
-      }
-      var $opExpr = '\'' + $opStr + '\'';
-      out += ' if ( ';
-      if ($isData) {
-        out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-      }
-      out += ' ' + ($data) + ' ' + ($notOp) + ' ' + ($schemaValue) + ' || ' + ($data) + ' !== ' + ($data) + ') { ';
-    }
-  }
-  $errorKeyword = $errorKeyword || $keyword;
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ($errorKeyword || '_limit') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { comparison: ' + ($opExpr) + ', limit: ' + ($schemaValue) + ', exclusive: ' + ($exclusive) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should be ' + ($opStr) + ' ';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue);
-      } else {
-        out += '' + ($schemaValue) + '\'';
-      }
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + ($schema);
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += ' } ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 341 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate__limitItems(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $errorKeyword;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $op = $keyword == 'maxItems' ? '>' : '<';
-  out += 'if ( ';
-  if ($isData) {
-    out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-  }
-  out += ' ' + ($data) + '.length ' + ($op) + ' ' + ($schemaValue) + ') { ';
-  var $errorKeyword = $keyword;
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ($errorKeyword || '_limitItems') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { limit: ' + ($schemaValue) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should NOT have ';
-      if ($keyword == 'maxItems') {
-        out += 'more';
-      } else {
-        out += 'less';
-      }
-      out += ' than ';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue) + ' + \'';
-      } else {
-        out += '' + ($schema);
-      }
-      out += ' items\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + ($schema);
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += '} ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 342 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate__limitLength(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $errorKeyword;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $op = $keyword == 'maxLength' ? '>' : '<';
-  out += 'if ( ';
-  if ($isData) {
-    out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-  }
-  if (it.opts.unicode === false) {
-    out += ' ' + ($data) + '.length ';
-  } else {
-    out += ' ucs2length(' + ($data) + ') ';
-  }
-  out += ' ' + ($op) + ' ' + ($schemaValue) + ') { ';
-  var $errorKeyword = $keyword;
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ($errorKeyword || '_limitLength') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { limit: ' + ($schemaValue) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should NOT be ';
-      if ($keyword == 'maxLength') {
-        out += 'longer';
-      } else {
-        out += 'shorter';
-      }
-      out += ' than ';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue) + ' + \'';
-      } else {
-        out += '' + ($schema);
-      }
-      out += ' characters\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + ($schema);
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += '} ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 343 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate__limitProperties(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $errorKeyword;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $op = $keyword == 'maxProperties' ? '>' : '<';
-  out += 'if ( ';
-  if ($isData) {
-    out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'number\') || ';
-  }
-  out += ' Object.keys(' + ($data) + ').length ' + ($op) + ' ' + ($schemaValue) + ') { ';
-  var $errorKeyword = $keyword;
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ($errorKeyword || '_limitProperties') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { limit: ' + ($schemaValue) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should NOT have ';
-      if ($keyword == 'maxProperties') {
-        out += 'more';
-      } else {
-        out += 'less';
-      }
-      out += ' than ';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue) + ' + \'';
-      } else {
-        out += '' + ($schema);
-      }
-      out += ' properties\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + ($schema);
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += '} ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 344 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_validate(it, $keyword, $ruleType) {
-  var out = '';
-  var $async = it.schema.$async === true,
-    $refKeywords = it.util.schemaHasRulesExcept(it.schema, it.RULES.all, '$ref'),
-    $id = it.self._getId(it.schema);
-  if (it.isTop) {
-    if ($async) {
-      it.async = true;
-      var $es7 = it.opts.async == 'es7';
-      it.yieldAwait = $es7 ? 'await' : 'yield';
-    }
-    out += ' var validate = ';
-    if ($async) {
-      if ($es7) {
-        out += ' (async function ';
-      } else {
-        if (it.opts.async != '*') {
-          out += 'co.wrap';
-        }
-        out += '(function* ';
-      }
-    } else {
-      out += ' (function ';
-    }
-    out += ' (data, dataPath, parentData, parentDataProperty, rootData) { \'use strict\'; ';
-    if ($id && (it.opts.sourceCode || it.opts.processCode)) {
-      out += ' ' + ('/\*# sourceURL=' + $id + ' */') + ' ';
-    }
-  }
-  if (typeof it.schema == 'boolean' || !($refKeywords || it.schema.$ref)) {
-    var $keyword = 'false schema';
-    var $lvl = it.level;
-    var $dataLvl = it.dataLevel;
-    var $schema = it.schema[$keyword];
-    var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-    var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-    var $breakOnError = !it.opts.allErrors;
-    var $errorKeyword;
-    var $data = 'data' + ($dataLvl || '');
-    var $valid = 'valid' + $lvl;
-    if (it.schema === false) {
-      if (it.isTop) {
-        $breakOnError = true;
-      } else {
-        out += ' var ' + ($valid) + ' = false; ';
-      }
-      var $$outStack = $$outStack || [];
-      $$outStack.push(out);
-      out = ''; /* istanbul ignore else */
-      if (it.createErrors !== false) {
-        out += ' { keyword: \'' + ($errorKeyword || 'false schema') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-        if (it.opts.messages !== false) {
-          out += ' , message: \'boolean schema is false\' ';
-        }
-        if (it.opts.verbose) {
-          out += ' , schema: false , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-        }
-        out += ' } ';
-      } else {
-        out += ' {} ';
-      }
-      var __err = out;
-      out = $$outStack.pop();
-      if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-        if (it.async) {
-          out += ' throw new ValidationError([' + (__err) + ']); ';
-        } else {
-          out += ' validate.errors = [' + (__err) + ']; return false; ';
-        }
-      } else {
-        out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-      }
-    } else {
-      if (it.isTop) {
-        if ($async) {
-          out += ' return data; ';
-        } else {
-          out += ' validate.errors = null; return true; ';
-        }
-      } else {
-        out += ' var ' + ($valid) + ' = true; ';
-      }
-    }
-    if (it.isTop) {
-      out += ' }); return validate; ';
-    }
-    return out;
-  }
-  if (it.isTop) {
-    var $top = it.isTop,
-      $lvl = it.level = 0,
-      $dataLvl = it.dataLevel = 0,
-      $data = 'data';
-    it.rootId = it.resolve.fullPath(it.self._getId(it.root.schema));
-    it.baseId = it.baseId || it.rootId;
-    delete it.isTop;
-    it.dataPathArr = [undefined];
-    out += ' var vErrors = null; ';
-    out += ' var errors = 0;     ';
-    out += ' if (rootData === undefined) rootData = data; ';
-  } else {
-    var $lvl = it.level,
-      $dataLvl = it.dataLevel,
-      $data = 'data' + ($dataLvl || '');
-    if ($id) it.baseId = it.resolve.url(it.baseId, $id);
-    if ($async && !it.async) throw new Error('async schema in sync schema');
-    out += ' var errs_' + ($lvl) + ' = errors;';
-  }
-  var $valid = 'valid' + $lvl,
-    $breakOnError = !it.opts.allErrors,
-    $closingBraces1 = '',
-    $closingBraces2 = '';
-  var $errorKeyword;
-  var $typeSchema = it.schema.type,
-    $typeIsArray = Array.isArray($typeSchema);
-  if ($typeIsArray && $typeSchema.length == 1) {
-    $typeSchema = $typeSchema[0];
-    $typeIsArray = false;
-  }
-  if (it.schema.$ref && $refKeywords) {
-    if (it.opts.extendRefs == 'fail') {
-      throw new Error('$ref: validation keywords used in schema at path "' + it.errSchemaPath + '" (see option extendRefs)');
-    } else if (it.opts.extendRefs !== true) {
-      $refKeywords = false;
-      it.logger.warn('$ref: keywords ignored in schema at path "' + it.errSchemaPath + '"');
-    }
-  }
-  if ($typeSchema) {
-    if (it.opts.coerceTypes) {
-      var $coerceToTypes = it.util.coerceToTypes(it.opts.coerceTypes, $typeSchema);
-    }
-    var $rulesGroup = it.RULES.types[$typeSchema];
-    if ($coerceToTypes || $typeIsArray || $rulesGroup === true || ($rulesGroup && !$shouldUseGroup($rulesGroup))) {
-      var $schemaPath = it.schemaPath + '.type',
-        $errSchemaPath = it.errSchemaPath + '/type';
-      var $schemaPath = it.schemaPath + '.type',
-        $errSchemaPath = it.errSchemaPath + '/type',
-        $method = $typeIsArray ? 'checkDataTypes' : 'checkDataType';
-      out += ' if (' + (it.util[$method]($typeSchema, $data, true)) + ') { ';
-      if ($coerceToTypes) {
-        var $dataType = 'dataType' + $lvl,
-          $coerced = 'coerced' + $lvl;
-        out += ' var ' + ($dataType) + ' = typeof ' + ($data) + '; ';
-        if (it.opts.coerceTypes == 'array') {
-          out += ' if (' + ($dataType) + ' == \'object\' && Array.isArray(' + ($data) + ')) ' + ($dataType) + ' = \'array\'; ';
-        }
-        out += ' var ' + ($coerced) + ' = undefined; ';
-        var $bracesCoercion = '';
-        var arr1 = $coerceToTypes;
-        if (arr1) {
-          var $type, $i = -1,
-            l1 = arr1.length - 1;
-          while ($i < l1) {
-            $type = arr1[$i += 1];
-            if ($i) {
-              out += ' if (' + ($coerced) + ' === undefined) { ';
-              $bracesCoercion += '}';
-            }
-            if (it.opts.coerceTypes == 'array' && $type != 'array') {
-              out += ' if (' + ($dataType) + ' == \'array\' && ' + ($data) + '.length == 1) { ' + ($coerced) + ' = ' + ($data) + ' = ' + ($data) + '[0]; ' + ($dataType) + ' = typeof ' + ($data) + ';  } ';
-            }
-            if ($type == 'string') {
-              out += ' if (' + ($dataType) + ' == \'number\' || ' + ($dataType) + ' == \'boolean\') ' + ($coerced) + ' = \'\' + ' + ($data) + '; else if (' + ($data) + ' === null) ' + ($coerced) + ' = \'\'; ';
-            } else if ($type == 'number' || $type == 'integer') {
-              out += ' if (' + ($dataType) + ' == \'boolean\' || ' + ($data) + ' === null || (' + ($dataType) + ' == \'string\' && ' + ($data) + ' && ' + ($data) + ' == +' + ($data) + ' ';
-              if ($type == 'integer') {
-                out += ' && !(' + ($data) + ' % 1)';
-              }
-              out += ')) ' + ($coerced) + ' = +' + ($data) + '; ';
-            } else if ($type == 'boolean') {
-              out += ' if (' + ($data) + ' === \'false\' || ' + ($data) + ' === 0 || ' + ($data) + ' === null) ' + ($coerced) + ' = false; else if (' + ($data) + ' === \'true\' || ' + ($data) + ' === 1) ' + ($coerced) + ' = true; ';
-            } else if ($type == 'null') {
-              out += ' if (' + ($data) + ' === \'\' || ' + ($data) + ' === 0 || ' + ($data) + ' === false) ' + ($coerced) + ' = null; ';
-            } else if (it.opts.coerceTypes == 'array' && $type == 'array') {
-              out += ' if (' + ($dataType) + ' == \'string\' || ' + ($dataType) + ' == \'number\' || ' + ($dataType) + ' == \'boolean\' || ' + ($data) + ' == null) ' + ($coerced) + ' = [' + ($data) + ']; ';
-            }
-          }
-        }
-        out += ' ' + ($bracesCoercion) + ' if (' + ($coerced) + ' === undefined) {   ';
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
-          if ($typeIsArray) {
-            out += '' + ($typeSchema.join(","));
-          } else {
-            out += '' + ($typeSchema);
-          }
-          out += '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'should be ';
-            if ($typeIsArray) {
-              out += '' + ($typeSchema.join(","));
-            } else {
-              out += '' + ($typeSchema);
-            }
-            out += '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-        out += ' } else {  ';
-        var $parentData = $dataLvl ? 'data' + (($dataLvl - 1) || '') : 'parentData',
-          $parentDataProperty = $dataLvl ? it.dataPathArr[$dataLvl] : 'parentDataProperty';
-        out += ' ' + ($data) + ' = ' + ($coerced) + '; ';
-        if (!$dataLvl) {
-          out += 'if (' + ($parentData) + ' !== undefined)';
-        }
-        out += ' ' + ($parentData) + '[' + ($parentDataProperty) + '] = ' + ($coerced) + '; } ';
-      } else {
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
-          if ($typeIsArray) {
-            out += '' + ($typeSchema.join(","));
-          } else {
-            out += '' + ($typeSchema);
-          }
-          out += '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'should be ';
-            if ($typeIsArray) {
-              out += '' + ($typeSchema.join(","));
-            } else {
-              out += '' + ($typeSchema);
-            }
-            out += '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-      }
-      out += ' } ';
-    }
-  }
-  if (it.schema.$ref && !$refKeywords) {
-    out += ' ' + (it.RULES.all.$ref.code(it, '$ref')) + ' ';
-    if ($breakOnError) {
-      out += ' } if (errors === ';
-      if ($top) {
-        out += '0';
-      } else {
-        out += 'errs_' + ($lvl);
-      }
-      out += ') { ';
-      $closingBraces2 += '}';
-    }
-  } else {
-    if (it.opts.v5 && it.schema.patternGroups) {
-      it.logger.warn('keyword "patternGroups" is deprecated and disabled. Use option patternGroups: true to enable.');
-    }
-    var arr2 = it.RULES;
-    if (arr2) {
-      var $rulesGroup, i2 = -1,
-        l2 = arr2.length - 1;
-      while (i2 < l2) {
-        $rulesGroup = arr2[i2 += 1];
-        if ($shouldUseGroup($rulesGroup)) {
-          if ($rulesGroup.type) {
-            out += ' if (' + (it.util.checkDataType($rulesGroup.type, $data)) + ') { ';
-          }
-          if (it.opts.useDefaults && !it.compositeRule) {
-            if ($rulesGroup.type == 'object' && it.schema.properties) {
-              var $schema = it.schema.properties,
-                $schemaKeys = Object.keys($schema);
-              var arr3 = $schemaKeys;
-              if (arr3) {
-                var $propertyKey, i3 = -1,
-                  l3 = arr3.length - 1;
-                while (i3 < l3) {
-                  $propertyKey = arr3[i3 += 1];
-                  var $sch = $schema[$propertyKey];
-                  if ($sch.default !== undefined) {
-                    var $passData = $data + it.util.getProperty($propertyKey);
-                    out += '  if (' + ($passData) + ' === undefined) ' + ($passData) + ' = ';
-                    if (it.opts.useDefaults == 'shared') {
-                      out += ' ' + (it.useDefault($sch.default)) + ' ';
-                    } else {
-                      out += ' ' + (JSON.stringify($sch.default)) + ' ';
-                    }
-                    out += '; ';
-                  }
-                }
-              }
-            } else if ($rulesGroup.type == 'array' && Array.isArray(it.schema.items)) {
-              var arr4 = it.schema.items;
-              if (arr4) {
-                var $sch, $i = -1,
-                  l4 = arr4.length - 1;
-                while ($i < l4) {
-                  $sch = arr4[$i += 1];
-                  if ($sch.default !== undefined) {
-                    var $passData = $data + '[' + $i + ']';
-                    out += '  if (' + ($passData) + ' === undefined) ' + ($passData) + ' = ';
-                    if (it.opts.useDefaults == 'shared') {
-                      out += ' ' + (it.useDefault($sch.default)) + ' ';
-                    } else {
-                      out += ' ' + (JSON.stringify($sch.default)) + ' ';
-                    }
-                    out += '; ';
-                  }
-                }
-              }
-            }
-          }
-          var arr5 = $rulesGroup.rules;
-          if (arr5) {
-            var $rule, i5 = -1,
-              l5 = arr5.length - 1;
-            while (i5 < l5) {
-              $rule = arr5[i5 += 1];
-              if ($shouldUseRule($rule)) {
-                var $code = $rule.code(it, $rule.keyword, $rulesGroup.type);
-                if ($code) {
-                  out += ' ' + ($code) + ' ';
-                  if ($breakOnError) {
-                    $closingBraces1 += '}';
-                  }
-                }
-              }
-            }
-          }
-          if ($breakOnError) {
-            out += ' ' + ($closingBraces1) + ' ';
-            $closingBraces1 = '';
-          }
-          if ($rulesGroup.type) {
-            out += ' } ';
-            if ($typeSchema && $typeSchema === $rulesGroup.type && !$coerceToTypes) {
-              out += ' else { ';
-              var $schemaPath = it.schemaPath + '.type',
-                $errSchemaPath = it.errSchemaPath + '/type';
-              var $$outStack = $$outStack || [];
-              $$outStack.push(out);
-              out = ''; /* istanbul ignore else */
-              if (it.createErrors !== false) {
-                out += ' { keyword: \'' + ($errorKeyword || 'type') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { type: \'';
-                if ($typeIsArray) {
-                  out += '' + ($typeSchema.join(","));
-                } else {
-                  out += '' + ($typeSchema);
-                }
-                out += '\' } ';
-                if (it.opts.messages !== false) {
-                  out += ' , message: \'should be ';
-                  if ($typeIsArray) {
-                    out += '' + ($typeSchema.join(","));
-                  } else {
-                    out += '' + ($typeSchema);
-                  }
-                  out += '\' ';
-                }
-                if (it.opts.verbose) {
-                  out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-                }
-                out += ' } ';
-              } else {
-                out += ' {} ';
-              }
-              var __err = out;
-              out = $$outStack.pop();
-              if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-                if (it.async) {
-                  out += ' throw new ValidationError([' + (__err) + ']); ';
-                } else {
-                  out += ' validate.errors = [' + (__err) + ']; return false; ';
-                }
-              } else {
-                out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-              }
-              out += ' } ';
-            }
-          }
-          if ($breakOnError) {
-            out += ' if (errors === ';
-            if ($top) {
-              out += '0';
-            } else {
-              out += 'errs_' + ($lvl);
-            }
-            out += ') { ';
-            $closingBraces2 += '}';
-          }
-        }
-      }
-    }
-  }
-  if ($breakOnError) {
-    out += ' ' + ($closingBraces2) + ' ';
-  }
-  if ($top) {
-    if ($async) {
-      out += ' if (errors === 0) return data;           ';
-      out += ' else throw new ValidationError(vErrors); ';
-    } else {
-      out += ' validate.errors = vErrors; ';
-      out += ' return errors === 0;       ';
-    }
-    out += ' }); return validate;';
-  } else {
-    out += ' var ' + ($valid) + ' = errors === errs_' + ($lvl) + ';';
-  }
-  out = it.util.cleanUpCode(out);
-  if ($top) {
-    out = it.util.finalCleanUpCode(out, $async);
-  }
-
-  function $shouldUseGroup($rulesGroup) {
-    var rules = $rulesGroup.rules;
-    for (var i = 0; i < rules.length; i++)
-      if ($shouldUseRule(rules[i])) return true;
-  }
-
-  function $shouldUseRule($rule) {
-    return it.schema[$rule.keyword] !== undefined || ($rule.implements && $ruleImplementsSomeKeyword($rule));
-  }
-
-  function $ruleImplementsSomeKeyword($rule) {
-    var impl = $rule.implements;
-    for (var i = 0; i < impl.length; i++)
-      if (it.schema[impl[i]] !== undefined) return true;
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 345 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(509)().Promise
-
-
-/***/ }),
-/* 346 */
-/***/ (function(module, exports) {
-
-// API
-module.exports = abort;
-
-/**
- * Aborts leftover active jobs
- *
- * @param {object} state - current state object
- */
-function abort(state)
-{
-  Object.keys(state.jobs).forEach(clean.bind(state));
-
-  // reset leftover jobs
-  state.jobs = {};
-}
-
-/**
- * Cleans up leftover job by invoking abort function for the provided job id
- *
- * @this  state
- * @param {string|number} key - job id to abort
- */
-function clean(key)
-{
-  if (typeof this.jobs[key] == 'function')
-  {
-    this.jobs[key]();
-  }
-}
-
-
-/***/ }),
-/* 347 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var defer = __webpack_require__(518);
-
-// API
-module.exports = async;
-
-/**
- * Runs provided callback asynchronously
- * even if callback itself is not
- *
- * @param   {function} callback - callback to invoke
- * @returns {function} - augmented callback
- */
-function async(callback)
-{
-  var isAsync = false;
-
-  // check if async happened
-  defer(function() { isAsync = true; });
-
-  return function async_callback(err, result)
-  {
-    if (isAsync)
-    {
-      callback(err, result);
-    }
-    else
-    {
-      defer(function nextTick_callback()
-      {
-        callback(err, result);
-      });
-    }
-  };
-}
-
-
-/***/ }),
-/* 348 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var async = __webpack_require__(347)
-  , abort = __webpack_require__(346)
-  ;
-
-// API
-module.exports = iterate;
-
-/**
- * Iterates over each job object
- *
- * @param {array|object} list - array or object (named list) to iterate over
- * @param {function} iterator - iterator to run
- * @param {object} state - current job status
- * @param {function} callback - invoked when all elements processed
- */
-function iterate(list, iterator, state, callback)
-{
-  // store current index
-  var key = state['keyedList'] ? state['keyedList'][state.index] : state.index;
-
-  state.jobs[key] = runJob(iterator, key, list[key], function(error, output)
-  {
-    // don't repeat yourself
-    // skip secondary callbacks
-    if (!(key in state.jobs))
-    {
-      return;
-    }
-
-    // clean up jobs
-    delete state.jobs[key];
-
-    if (error)
-    {
-      // don't process rest of the results
-      // stop still active jobs
-      // and reset the list
-      abort(state);
-    }
-    else
-    {
-      state.results[key] = output;
-    }
-
-    // return salvaged results
-    callback(error, state.results);
-  });
-}
-
-/**
- * Runs iterator over provided job element
- *
- * @param   {function} iterator - iterator to invoke
- * @param   {string|number} key - key/index of the element in the list of jobs
- * @param   {mixed} item - job description
- * @param   {function} callback - invoked after iterator is done with the job
- * @returns {function|mixed} - job abort function or something else
- */
-function runJob(iterator, key, item, callback)
-{
-  var aborter;
-
-  // allow shortcut if iterator expects only two arguments
-  if (iterator.length == 2)
-  {
-    aborter = iterator(item, async(callback));
-  }
-  // otherwise go with full three arguments
-  else
-  {
-    aborter = iterator(item, key, async(callback));
-  }
-
-  return aborter;
-}
-
-
-/***/ }),
-/* 349 */
-/***/ (function(module, exports) {
-
-// API
-module.exports = state;
-
-/**
- * Creates initial state object
- * for iteration over list
- *
- * @param   {array|object} list - list to iterate over
- * @param   {function|null} sortMethod - function to use for keys sort,
- *                                     or `null` to keep them as is
- * @returns {object} - initial state object
- */
-function state(list, sortMethod)
-{
-  var isNamedList = !Array.isArray(list)
-    , initState =
-    {
-      index    : 0,
-      keyedList: isNamedList || sortMethod ? Object.keys(list) : null,
-      jobs     : {},
-      results  : isNamedList ? {} : [],
-      size     : isNamedList ? Object.keys(list).length : list.length
-    }
-    ;
-
-  if (sortMethod)
-  {
-    // sort array keys based on it's values
-    // sort object's keys just on own merit
-    initState.keyedList.sort(isNamedList ? sortMethod : function(a, b)
-    {
-      return sortMethod(list[a], list[b]);
-    });
-  }
-
-  return initState;
-}
-
-
-/***/ }),
-/* 350 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var abort = __webpack_require__(346)
-  , async = __webpack_require__(347)
-  ;
-
-// API
-module.exports = terminator;
-
-/**
- * Terminates jobs in the attached state context
- *
- * @this  AsyncKitState#
- * @param {function} callback - final callback to invoke after termination
- */
-function terminator(callback)
-{
-  if (!Object.keys(this.jobs).length)
-  {
-    return;
-  }
-
-  // fast forward iteration index
-  this.index = this.size;
-
-  // abort jobs
-  abort(this);
-
-  // send back results we have so far
-  async(callback)(null, this.results);
-}
-
-
-/***/ }),
-/* 351 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var iterate    = __webpack_require__(348)
-  , initState  = __webpack_require__(349)
-  , terminator = __webpack_require__(350)
-  ;
-
-// Public API
-module.exports = serialOrdered;
-// sorting helpers
-module.exports.ascending  = ascending;
-module.exports.descending = descending;
-
-/**
- * Runs iterator over provided sorted array elements in series
- *
- * @param   {array|object} list - array or object (named list) to iterate over
- * @param   {function} iterator - iterator to run
- * @param   {function} sortMethod - custom sort function
- * @param   {function} callback - invoked when all elements processed
- * @returns {function} - jobs terminator
- */
-function serialOrdered(list, iterator, sortMethod, callback)
-{
-  var state = initState(list, sortMethod);
-
-  iterate(list, iterator, state, function iteratorHandler(error, result)
-  {
-    if (error)
-    {
-      callback(error, result);
-      return;
-    }
-
-    state.index++;
-
-    // are we there yet?
-    if (state.index < (state['keyedList'] || list).length)
-    {
-      iterate(list, iterator, state, iteratorHandler);
-      return;
-    }
-
-    // done here
-    callback(null, state.results);
-  });
-
-  return terminator.bind(state, callback);
-}
-
-/*
- * -- Sort methods
- */
-
-/**
- * sort helper to sort array elements in ascending order
- *
- * @param   {mixed} a - an item to compare
- * @param   {mixed} b - an item to compare
- * @returns {number} - comparison result
- */
-function ascending(a, b)
-{
-  return a < b ? -1 : a > b ? 1 : 0;
-}
-
-/**
- * sort helper to sort array elements in descending order
- *
- * @param   {mixed} a - an item to compare
- * @param   {mixed} b - an item to compare
- * @returns {number} - comparison result
- */
-function descending(a, b)
-{
-  return -1 * ascending(a, b);
-}
-
-
-/***/ }),
-/* 352 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = {
-  'upgrade-interactive': 'upgradeInteractive',
-  'generate-lock-entry': 'generateLockEntry'
-};
-
-/***/ }),
-/* 353 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const DEFAULT_LOG_LEVEL = 'info';
-    const audit = new Audit(config, reporter, {
-      groups: flags.groups || (_constants || _load_constants()).OWNED_DEPENDENCY_TYPES,
-      level: flags.level || DEFAULT_LOG_LEVEL
-    });
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-    const install = new (_install || _load_install()).Install({}, config, reporter, lockfile);
-
-    var _ref2 = yield install.fetchRequestFromCwd();
-
-    const manifest = _ref2.manifest,
-          requests = _ref2.requests,
-          patterns = _ref2.patterns,
-          workspaceLayout = _ref2.workspaceLayout;
-
-    yield install.resolver.init(requests, {
-      workspaceLayout
-    });
-
-    const vulnerabilities = yield audit.performAudit(manifest, lockfile, install.resolver, install.linker, patterns);
-
-    const EXIT_INFO = 1;
-    const EXIT_LOW = 2;
-    const EXIT_MODERATE = 4;
-    const EXIT_HIGH = 8;
-    const EXIT_CRITICAL = 16;
-
-    const exitCode = (vulnerabilities.info ? EXIT_INFO : 0) + (vulnerabilities.low ? EXIT_LOW : 0) + (vulnerabilities.moderate ? EXIT_MODERATE : 0) + (vulnerabilities.high ? EXIT_HIGH : 0) + (vulnerabilities.critical ? EXIT_CRITICAL : 0);
-
-    if (flags.summary) {
-      audit.summary();
-    } else {
-      audit.report();
-    }
-
-    return exitCode;
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _promise;
-
-function _load_promise() {
-  return _promise = __webpack_require__(50);
-}
-
-var _hoistedTreeBuilder;
-
-function _load_hoistedTreeBuilder() {
-  return _hoistedTreeBuilder = __webpack_require__(554);
-}
-
-var _getTransitiveDevDependencies;
-
-function _load_getTransitiveDevDependencies() {
-  return _getTransitiveDevDependencies = __webpack_require__(580);
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const zlib = __webpack_require__(198);
-
-const gzip = (0, (_promise || _load_promise()).promisify)(zlib.gzip);
-
-function setFlags(commander) {
-  commander.description('Checks for known security issues with the installed packages.');
-  commander.option('--summary', 'Only print the summary.');
-  commander.option('--groups <group_name> [<group_name> ...]', `Only audit dependencies from listed groups. Default: ${(_constants || _load_constants()).OWNED_DEPENDENCY_TYPES.join(', ')}`, groups => groups.split(' '), (_constants || _load_constants()).OWNED_DEPENDENCY_TYPES);
-  commander.option('--level <severity>', `Only print advisories with severity greater than or equal to one of the following: \
-    info|low|moderate|high|critical. Default: info`, 'info');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-class Audit {
-
-  constructor(config, reporter, options) {
-    this.severityLevels = ['info', 'low', 'moderate', 'high', 'critical'];
-
-    this.config = config;
-    this.reporter = reporter;
-    this.options = options;
-  }
-
-  _mapHoistedNodes(auditNode, hoistedNodes, transitiveDevDeps) {
-    for (var _iterator = hoistedNodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref3 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref3 = _i.value;
-      }
-
-      const node = _ref3;
-
-      const pkg = node.manifest.pkg;
-      const requires = Object.assign({}, pkg.dependencies || {}, pkg.optionalDependencies || {});
-      for (var _iterator2 = Object.keys(requires), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref4 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref4 = _i2.value;
-        }
-
-        const name = _ref4;
-
-        if (!requires[name]) {
-          requires[name] = '*';
-        }
-      }
-      auditNode.dependencies[node.name] = {
-        version: node.version,
-        integrity: pkg._remote ? pkg._remote.integrity || '' : '',
-        requires,
-        dependencies: {},
-        dev: transitiveDevDeps.has(`${node.name}@${node.version}`)
-      };
-      if (node.children) {
-        this._mapHoistedNodes(auditNode.dependencies[node.name], node.children, transitiveDevDeps);
-      }
-    }
-  }
-
-  _mapHoistedTreesToAuditTree(manifest, hoistedTrees, transitiveDevDeps) {
-    const requiresGroups = this.options.groups.map(function (group) {
-      return manifest[group] || {};
-    });
-
-    const auditTree = {
-      name: manifest.name || undefined,
-      version: manifest.version || undefined,
-      install: [],
-      remove: [],
-      metadata: {
-        //TODO: What do we send here? npm sends npm version, node version, etc.
-      },
-      requires: Object.assign({}, ...requiresGroups),
-      integrity: undefined,
-      dependencies: {},
-      dev: false
-    };
-
-    this._mapHoistedNodes(auditTree, hoistedTrees, transitiveDevDeps);
-    return auditTree;
-  }
-
-  _fetchAudit(auditTree) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let responseJson;
-      const registry = (_constants || _load_constants()).YARN_REGISTRY;
-      _this.reporter.verbose(`Audit Request: ${JSON.stringify(auditTree, null, 2)}`);
-      const requestBody = yield gzip(JSON.stringify(auditTree));
-      const response = yield _this.config.requestManager.request({
-        url: `${registry}/-/npm/v1/security/audits`,
-        method: 'POST',
-        body: requestBody,
-        headers: {
-          'Content-Encoding': 'gzip',
-          'Content-Type': 'application/json',
-          Accept: 'application/json'
-        }
-      });
-
-      try {
-        responseJson = JSON.parse(response);
-      } catch (ex) {
-        throw new Error(`Unexpected audit response (Invalid JSON): ${response}`);
-      }
-      if (!responseJson.metadata) {
-        throw new Error(`Unexpected audit response (Missing Metadata): ${JSON.stringify(responseJson, null, 2)}`);
-      }
-      _this.reporter.verbose(`Audit Response: ${JSON.stringify(responseJson, null, 2)}`);
-      return responseJson;
-    })();
-  }
-
-  _insertWorkspacePackagesIntoManifest(manifest, resolver) {
-    if (resolver.workspaceLayout) {
-      const workspaceAggregatorName = resolver.workspaceLayout.virtualManifestName;
-      const workspaceManifest = resolver.workspaceLayout.workspaces[workspaceAggregatorName].manifest;
-
-      manifest.dependencies = Object.assign(manifest.dependencies || {}, workspaceManifest.dependencies);
-      manifest.devDependencies = Object.assign(manifest.devDependencies || {}, workspaceManifest.devDependencies);
-      manifest.optionalDependencies = Object.assign(manifest.optionalDependencies || {}, workspaceManifest.optionalDependencies);
-    }
-  }
-
-  performAudit(manifest, lockfile, resolver, linker, patterns) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this2._insertWorkspacePackagesIntoManifest(manifest, resolver);
-      const transitiveDevDeps = (0, (_getTransitiveDevDependencies || _load_getTransitiveDevDependencies()).getTransitiveDevDependencies)(manifest, resolver.workspaceLayout, lockfile);
-      const hoistedTrees = yield (0, (_hoistedTreeBuilder || _load_hoistedTreeBuilder()).buildTree)(resolver, linker, patterns);
-      const auditTree = _this2._mapHoistedTreesToAuditTree(manifest, hoistedTrees, transitiveDevDeps);
-      _this2.auditData = yield _this2._fetchAudit(auditTree);
-      return _this2.auditData.metadata.vulnerabilities;
-    })();
-  }
-
-  summary() {
-    if (!this.auditData) {
-      return;
-    }
-    this.reporter.auditSummary(this.auditData.metadata);
-  }
-
-  report() {
-    if (!this.auditData) {
-      return;
-    }
-
-    const startLoggingAt = Math.max(0, this.severityLevels.indexOf(this.options.level));
-
-    const reportAdvisory = resolution => {
-      const advisory = this.auditData.advisories[resolution.id.toString()];
-
-      if (this.severityLevels.indexOf(advisory.severity) >= startLoggingAt) {
-        this.reporter.auditAdvisory(resolution, advisory);
-      }
-    };
-
-    if (Object.keys(this.auditData.advisories).length !== 0) {
-      // let printedManualReviewHeader = false;
-
-      this.auditData.actions.forEach(action => {
-        action.resolves.forEach(reportAdvisory);
-
-        /* The following block has been temporarily removed
-         * because the actions returned by npm are not valid for yarn.
-         * Removing this action reporting until we can come up with a way
-         * to correctly resolve issues.
-         */
-        // if (action.action === 'update' || action.action === 'install') {
-        //   // these advisories can be resolved automatically by running a yarn command
-        //   const recommendation: AuditActionRecommendation = {
-        //     cmd: `yarn upgrade ${action.module}@${action.target}`,
-        //     isBreaking: action.isMajor,
-        //     action,
-        //   };
-        //   this.reporter.auditAction(recommendation);
-        //   action.resolves.forEach(reportAdvisory);
-        // }
-
-        // if (action.action === 'review') {
-        //   // these advisories cannot be resolved automatically and require manual review
-        //   if (!printedManualReviewHeader) {
-        //     this.reporter.auditManualReview();
-        //   }
-        //   printedManualReviewHeader = true;
-        //   action.resolves.forEach(reportAdvisory);
-        // }
-      });
-    }
-
-    this.summary();
-  }
-}
-exports.default = Audit;
-
-/***/ }),
-/* 354 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.clean = exports.noArguments = exports.requireLockfile = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let clean = exports.clean = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter) {
-    const loc = path.join(config.lockfileFolder, (_constants || _load_constants()).CLEAN_FILENAME);
-    const file = yield (_fs || _load_fs()).readFile(loc);
-    const lines = file.split('\n');
-    const filters = (0, (_filter || _load_filter()).ignoreLinesToRegex)(lines);
-
-    let removedFiles = 0;
-    let removedSize = 0;
-
-    // build list of possible module folders
-    const locs = new Set();
-    for (var _iterator = config.registryFolders, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const registryFolder = _ref2;
-
-      locs.add(path.resolve(config.lockfileFolder, registryFolder));
-    }
-
-    const workspaceRootFolder = config.workspaceRootFolder;
-    if (workspaceRootFolder) {
-      const manifest = yield config.findManifest(workspaceRootFolder, false);
-      invariant(manifest && manifest.workspaces, 'We must find a manifest with a "workspaces" property');
-
-      const workspaces = yield config.resolveWorkspaces(workspaceRootFolder, manifest);
-
-      for (var _iterator2 = Object.keys(workspaces), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const workspaceName = _ref3;
-
-        for (var _iterator3 = (_index || _load_index()).registryNames, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref4;
-
-          if (_isArray3) {
-            if (_i3 >= _iterator3.length) break;
-            _ref4 = _iterator3[_i3++];
-          } else {
-            _i3 = _iterator3.next();
-            if (_i3.done) break;
-            _ref4 = _i3.value;
-          }
-
-          const name = _ref4;
-
-          const registry = config.registries[name];
-          locs.add(path.join(workspaces[workspaceName].loc, registry.folder));
-        }
-      }
-    }
-
-    for (var _iterator4 = locs, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref5 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref5 = _i4.value;
-      }
-
-      const folder = _ref5;
-
-      if (!(yield (_fs || _load_fs()).exists(folder))) {
-        continue;
-      }
-
-      const spinner = reporter.activity();
-      const files = yield (_fs || _load_fs()).walk(folder);
-
-      var _sortFilter = (0, (_filter || _load_filter()).sortFilter)(files, filters);
-
-      const ignoreFiles = _sortFilter.ignoreFiles;
-
-      spinner.end();
-
-      const tick = reporter.progress(ignoreFiles.size);
-      // TODO make sure `main` field of all modules isn't ignored
-
-      for (var _iterator5 = ignoreFiles, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref6 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref6 = _i5.value;
-        }
-
-        const file = _ref6;
-
-        const loc = path.join(folder, file);
-        const stat = yield (_fs || _load_fs()).lstat(loc);
-        removedSize += stat.size;
-        removedFiles++;
-      }
-
-      for (var _iterator6 = ignoreFiles, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray6) {
-          if (_i6 >= _iterator6.length) break;
-          _ref7 = _iterator6[_i6++];
-        } else {
-          _i6 = _iterator6.next();
-          if (_i6.done) break;
-          _ref7 = _i6.value;
-        }
-
-        const file = _ref7;
-
-        const loc = path.join(folder, file);
-        yield (_fs || _load_fs()).unlink(loc);
-        tick();
-      }
-    }
-
-    return { removedFiles, removedSize };
-  });
-
-  return function clean(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let runInit = (() => {
-  var _ref8 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (cwd, reporter) {
-    reporter.step(1, 1, reporter.lang('cleanCreatingFile', (_constants || _load_constants()).CLEAN_FILENAME));
-    const cleanLoc = path.join(cwd, (_constants || _load_constants()).CLEAN_FILENAME);
-    yield (_fs || _load_fs()).writeFile(cleanLoc, `${DEFAULT_FILTER}\n`, { flag: 'wx' });
-    reporter.info(reporter.lang('cleanCreatedFile', (_constants || _load_constants()).CLEAN_FILENAME));
-  });
-
-  return function runInit(_x3, _x4) {
-    return _ref8.apply(this, arguments);
-  };
-})();
-
-let runAutoClean = (() => {
-  var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter) {
-    reporter.step(1, 1, reporter.lang('cleaning'));
-
-    var _ref10 = yield clean(config, reporter);
-
-    const removedFiles = _ref10.removedFiles,
-          removedSize = _ref10.removedSize;
-
-    reporter.info(reporter.lang('cleanRemovedFiles', removedFiles));
-    reporter.info(reporter.lang('cleanSavedSize', Number((removedSize / 1024 / 1024).toFixed(2))));
-  });
-
-  return function runAutoClean(_x5, _x6) {
-    return _ref9.apply(this, arguments);
-  };
-})();
-
-let checkForCleanFile = (() => {
-  var _ref11 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (cwd) {
-    const cleanLoc = path.join(cwd, (_constants || _load_constants()).CLEAN_FILENAME);
-    const exists = yield (_fs || _load_fs()).exists(cleanLoc);
-    return exists;
-  });
-
-  return function checkForCleanFile(_x7) {
-    return _ref11.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref12 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const cleanFileExists = yield checkForCleanFile(config.cwd);
-
-    if (flags.init && cleanFileExists) {
-      reporter.info(reporter.lang('cleanAlreadyExists', (_constants || _load_constants()).CLEAN_FILENAME));
-    } else if (flags.init) {
-      yield runInit(config.cwd, reporter);
-    } else if (flags.force && cleanFileExists) {
-      yield runAutoClean(config, reporter);
-    } else if (cleanFileExists) {
-      reporter.info(reporter.lang('cleanRequiresForce', (_constants || _load_constants()).CLEAN_FILENAME));
-    } else {
-      reporter.info(reporter.lang('cleanDoesNotExist', (_constants || _load_constants()).CLEAN_FILENAME));
-    }
-  });
-
-  return function run(_x8, _x9, _x10, _x11) {
-    return _ref12.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _filter;
-
-function _load_filter() {
-  return _filter = __webpack_require__(372);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-
-const requireLockfile = exports.requireLockfile = true;
-const noArguments = exports.noArguments = true;
-
-const DEFAULT_FILTER = `
-# test directories
-__tests__
-test
-tests
-powered-test
-
-# asset directories
-docs
-doc
-website
-images
-assets
-
-# examples
-example
-examples
-
-# code coverage directories
-coverage
-.nyc_output
-
-# build scripts
-Makefile
-Gulpfile.js
-Gruntfile.js
-
-# configs
-appveyor.yml
-circle.yml
-codeship-services.yml
-codeship-steps.yml
-wercker.yml
-.tern-project
-.gitattributes
-.editorconfig
-.*ignore
-.eslintrc
-.jshintrc
-.flowconfig
-.documentup.json
-.yarn-metadata.json
-.travis.yml
-
-# misc
-*.md
-`.trim();
-
-function setFlags(commander) {
-  commander.description('Cleans and removes unnecessary files from package dependencies.');
-  commander.usage('autoclean [flags]');
-  commander.option('-I, --init', `Create "${(_constants || _load_constants()).CLEAN_FILENAME}" file with the default entries.`);
-  commander.option('-F, --force', `Run autoclean using the existing "${(_constants || _load_constants()).CLEAN_FILENAME}" file.`);
-}
-
-function hasWrapper(commander) {
-  return true;
-}
-
-/***/ }),
-/* 355 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.run = exports.getCachedPackagesDirs = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getCachedPackagesDirs = exports.getCachedPackagesDirs = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, currentPath) {
-    const results = [];
-    const stat = yield (_fs || _load_fs()).lstat(currentPath);
-
-    if (!stat.isDirectory()) {
-      return results;
-    }
-
-    const folders = yield (_fs || _load_fs()).readdir(currentPath);
-    for (var _iterator = folders, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const folder = _ref2;
-
-      if (folder[0] === '.') {
-        continue;
-      }
-      const packageParentPath = path.join(currentPath, folder, 'node_modules');
-
-      const candidates = yield (_fs || _load_fs()).readdir(packageParentPath);
-      invariant(candidates.length === 1, `There should only be one folder in a package cache (got ${candidates.join(',')} in ${packageParentPath})`);
-
-      for (var _iterator2 = candidates, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const candidate = _ref3;
-
-        const candidatePath = path.join(packageParentPath, candidate);
-        if (candidate.charAt(0) === '@') {
-          const subCandidates = yield (_fs || _load_fs()).readdir(candidatePath);
-          invariant(subCandidates.length === 1, `There should only be one folder in a package cache (got ${subCandidates.join(',')} in ${candidatePath})`);
-
-          for (var _iterator3 = subCandidates, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-            var _ref4;
-
-            if (_isArray3) {
-              if (_i3 >= _iterator3.length) break;
-              _ref4 = _iterator3[_i3++];
-            } else {
-              _i3 = _iterator3.next();
-              if (_i3.done) break;
-              _ref4 = _i3.value;
-            }
-
-            const subCandidate = _ref4;
-
-            const subCandidatePath = path.join(candidatePath, subCandidate);
-            results.push(subCandidatePath);
-          }
-        } else {
-          results.push(candidatePath);
-        }
-      }
-    }
-
-    return results;
-  });
-
-  return function getCachedPackagesDirs(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let getCachedPackages = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    const paths = yield getCachedPackagesDirs(config, config.cacheFolder);
-    return _getMetadataWithPath(config.readPackageMetadata.bind(config), paths).then(function (packages) {
-      return packages.filter(function (p) {
-        return !!p;
-      });
-    });
-  });
-
-  return function getCachedPackages(_x3) {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const filterOut = function filterOut({ registry, package: manifest, remote } = {}) {
-      if (flags.pattern && !micromatch.contains(manifest.name, flags.pattern)) {
-        return false;
-      }
-      return true;
-    };
-
-    const forReport = function forReport({ registry, package: manifest, remote } = {}) {
-      return [manifest.name, manifest.version, registry, remote && remote.resolved || ''];
-    };
-
-    const packages = yield getCachedPackages(config);
-    const body = packages.filter(filterOut).map(forReport);
-    reporter.table(['Name', 'Version', 'Registry', 'Resolved'], body);
-  });
-
-  return function list(_x4, _x5, _x6, _x7) {
-    return _ref6.apply(this, arguments);
-  };
-})();
-
-let clean = (() => {
-  var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (config.cacheFolder) {
-      const activity = reporter.activity();
-
-      if (args.length > 0) {
-        // Clear named packages from cache
-        const packages = yield getCachedPackages(config);
-        const shouldDelete = function shouldDelete({ registry, package: manifest, remote } = {}) {
-          return args.indexOf(manifest.name) !== -1;
-        };
-        const packagesToDelete = packages.filter(shouldDelete);
-
-        for (var _iterator4 = packagesToDelete, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref8;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref8 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref8 = _i4.value;
-          }
-
-          const manifest = _ref8;
-
-          let relativePath = path.relative(config.cacheFolder, manifest._path);
-          while (relativePath && relativePath !== '.') {
-            yield (_fs || _load_fs()).unlink(path.resolve(config.cacheFolder, relativePath));
-            relativePath = path.dirname(relativePath);
-          }
-        }
-
-        activity.end();
-        reporter.success(reporter.lang('clearedPackageFromCache', args[0]));
-      } else {
-        // Clear all cache
-        yield (_fs || _load_fs()).unlink(config._cacheRootFolder);
-        yield (_fs || _load_fs()).mkdirp(config.cacheFolder);
-        activity.end();
-        reporter.success(reporter.lang('clearedCache'));
-      }
-    }
-  });
-
-  return function clean(_x8, _x9, _x10, _x11) {
-    return _ref7.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const micromatch = __webpack_require__(114);
-
-function hasWrapper(flags, args) {
-  return args[0] !== 'dir';
-}
-
-function _getMetadataWithPath(getMetadataFn, paths) {
-  return Promise.all(paths.map(path => getMetadataFn(path).then(r => {
-    r._path = path;
-    return r;
-  }).catch(error => undefined)));
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('cache', {
-  ls(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.warn(`\`yarn cache ls\` is deprecated. Please use \`yarn cache list\`.`);
-      yield list(config, reporter, flags, args);
-    })();
-  },
-  list,
-  clean,
-  dir(config, reporter) {
-    reporter.log(config.cacheFolder, { force: true });
-  }
-});
-
-const run = _buildSubCommands.run,
-      _setFlags = _buildSubCommands.setFlags,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.examples = examples;
-function setFlags(commander) {
-  _setFlags(commander);
-  commander.description('Yarn cache list will print out every cached package.');
-  commander.option('--pattern [pattern]', 'filter cached packages by pattern');
-}
-
-/***/ }),
-/* 356 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.verifyTreeCheck = exports.noArguments = exports.requireLockfile = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let verifyTreeCheck = exports.verifyTreeCheck = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let errCount = 0;
-    function reportError(msg, ...vars) {
-      reporter.error(reporter.lang(msg, ...vars));
-      errCount++;
-    }
-    // check all dependencies recursively without relying on internal resolver
-    const registryName = 'yarn';
-    const registryFolder = config.registryFolders[0];
-    const cwd = config.workspaceRootFolder ? config.lockfileFolder : config.cwd;
-    const rootManifest = yield config.readManifest(cwd, registryName);
-
-    const dependenciesToCheckVersion = [];
-    if (rootManifest.dependencies) {
-      for (const name in rootManifest.dependencies) {
-        const version = rootManifest.dependencies[name];
-        // skip linked dependencies
-        const isLinkedDependency = /^link:/i.test(version) || /^file:/i.test(version) && config.linkFileDependencies;
-        if (isLinkedDependency) {
-          continue;
-        }
-        dependenciesToCheckVersion.push({
-          name,
-          originalKey: name,
-          parentCwd: cwd,
-          version
-        });
-      }
-    }
-    if (rootManifest.devDependencies && !config.production) {
-      for (const name in rootManifest.devDependencies) {
-        const version = rootManifest.devDependencies[name];
-        // skip linked dependencies
-        const isLinkedDependency = /^link:/i.test(version) || /^file:/i.test(version) && config.linkFileDependencies;
-        if (isLinkedDependency) {
-          continue;
-        }
-        dependenciesToCheckVersion.push({
-          name,
-          originalKey: name,
-          parentCwd: cwd,
-          version
-        });
-      }
-    }
-
-    const locationsVisited = new Set();
-    while (dependenciesToCheckVersion.length) {
-      const dep = dependenciesToCheckVersion.shift();
-      const manifestLoc = path.resolve(dep.parentCwd, registryFolder, dep.name);
-      if (locationsVisited.has(manifestLoc + `@${dep.version}`)) {
-        continue;
-      }
-      locationsVisited.add(manifestLoc + `@${dep.version}`);
-      // When plugnplay is enabled, packages aren't copied to the node_modules folder, so this check doesn't make sense
-      // TODO: We ideally should check that the packages are located inside the cache instead
-      if (config.plugnplayEnabled) {
-        continue;
-      }
-      if (!(yield (_fs || _load_fs()).exists(manifestLoc))) {
-        reportError('packageNotInstalled', `${dep.originalKey}`);
-        continue;
-      }
-      if (!(yield (_fs || _load_fs()).exists(path.join(manifestLoc, 'package.json')))) {
-        continue;
-      }
-      const pkg = yield config.readManifest(manifestLoc, registryName);
-      if (semver.validRange(dep.version, config.looseSemver) && !semver.satisfies(pkg.version, dep.version, config.looseSemver)) {
-        reportError('packageWrongVersion', dep.originalKey, dep.version, pkg.version);
-        continue;
-      }
-      const dependencies = pkg.dependencies;
-      if (dependencies) {
-        for (const subdep in dependencies) {
-          const subDepPath = path.resolve(manifestLoc, registryFolder, subdep);
-          let found = false;
-          const relative = path.relative(cwd, subDepPath);
-          const locations = path.normalize(relative).split(registryFolder + path.sep).filter(function (dir) {
-            return !!dir;
-          });
-          locations.pop();
-          while (locations.length >= 0) {
-            let possiblePath;
-            if (locations.length > 0) {
-              possiblePath = path.join(cwd, registryFolder, locations.join(path.sep + registryFolder + path.sep));
-            } else {
-              possiblePath = cwd;
-            }
-            if (yield (_fs || _load_fs()).exists(path.resolve(possiblePath, registryFolder, subdep))) {
-              dependenciesToCheckVersion.push({
-                name: subdep,
-                originalKey: `${dep.originalKey}#${subdep}`,
-                parentCwd: possiblePath,
-                version: dependencies[subdep]
-              });
-              found = true;
-              break;
-            }
-            if (!locations.length) {
-              break;
-            }
-            locations.pop();
-          }
-          if (!found) {
-            reportError('packageNotInstalled', `${dep.originalKey}#${subdep}`);
-          }
-        }
-      }
-    }
-
-    if (errCount > 0) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('foundErrors', errCount));
-    } else {
-      reporter.success(reporter.lang('folderInSync'));
-    }
-  });
-
-  return function verifyTreeCheck(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let integrityHashCheck = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let errCount = 0;
-    function reportError(msg, ...vars) {
-      reporter.error(reporter.lang(msg, ...vars));
-      errCount++;
-    }
-    const integrityChecker = new (_integrityChecker || _load_integrityChecker()).default(config);
-
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.cwd);
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-    // get patterns that are installed when running `yarn install`
-
-    var _ref3 = yield install.fetchRequestFromCwd();
-
-    const patterns = _ref3.patterns,
-          workspaceLayout = _ref3.workspaceLayout;
-
-
-    const match = yield integrityChecker.check(patterns, lockfile.cache, flags, workspaceLayout);
-    for (var _iterator = match.missingPatterns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref4 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref4 = _i.value;
-      }
-
-      const pattern = _ref4;
-
-      reportError('lockfileNotContainPattern', pattern);
-    }
-    if (match.integrityFileMissing) {
-      reportError('noIntegrityFile');
-    }
-    if (match.integrityMatches === false) {
-      reporter.warn(reporter.lang((_integrityChecker2 || _load_integrityChecker2()).integrityErrors[match.integrityError]));
-      reportError('integrityCheckFailed');
-    }
-
-    if (errCount > 0) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('foundErrors', errCount));
-    } else {
-      reporter.success(reporter.lang('folderInSync'));
-    }
-  });
-
-  return function integrityHashCheck(_x5, _x6, _x7, _x8) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (flags.verifyTree) {
-      yield verifyTreeCheck(config, reporter, flags, args);
-      return;
-    } else if (flags.integrity) {
-      yield integrityHashCheck(config, reporter, flags, args);
-      return;
-    }
-
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.cwd);
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-    function humaniseLocation(loc) {
-      const relative = path.relative(path.join(config.cwd, 'node_modules'), loc);
-      const normalized = path.normalize(relative).split(path.sep);
-      return normalized.filter(p => p !== 'node_modules').reduce((result, part) => {
-        const length = result.length;
-        if (length && result[length - 1].startsWith('@') && result[length - 1].indexOf(path.sep) === -1) {
-          result[length - 1] += path.sep + part;
-        } else {
-          result.push(part);
-        }
-        return result;
-      }, []);
-    }
-
-    let warningCount = 0;
-    let errCount = 0;
-    function reportError(msg, ...vars) {
-      reporter.error(reporter.lang(msg, ...vars));
-      errCount++;
-    }
-
-    // get patterns that are installed when running `yarn install`
-
-    var _ref6 = yield install.hydrate();
-
-    const rawPatterns = _ref6.patterns,
-          workspaceLayout = _ref6.workspaceLayout;
-
-    const patterns = yield install.flatten(rawPatterns);
-
-    // check if patterns exist in lockfile
-    for (var _iterator2 = patterns, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref7 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref7 = _i2.value;
-      }
-
-      const pattern = _ref7;
-
-      if (!lockfile.getLocked(pattern) && (!workspaceLayout || !workspaceLayout.getManifestByPattern(pattern))) {
-        reportError('lockfileNotContainPattern', pattern);
-      }
-    }
-
-    const bundledDeps = {};
-    // check if any of the node_modules are out of sync
-    const res = yield install.linker.getFlatHoistedTree(patterns, workspaceLayout);
-    for (var _iterator3 = res, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref9;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref9 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref9 = _i3.value;
-      }
-
-      const _ref8 = _ref9;
-      const loc = _ref8[0];
-      var _ref8$ = _ref8[1];
-      const originalKey = _ref8$.originalKey;
-      const pkg = _ref8$.pkg;
-      const ignore = _ref8$.ignore;
-
-      if (ignore) {
-        continue;
-      }
-
-      const parts = humaniseLocation(loc);
-
-      // grey out hoisted portions of key
-      let human = originalKey;
-      const hoistedParts = parts.slice();
-      const hoistedKey = parts.join('#');
-      if (human !== hoistedKey) {
-        const humanParts = human.split('#');
-
-        for (let i = 0; i < humanParts.length; i++) {
-          const humanPart = humanParts[i];
-
-          if (hoistedParts[0] === humanPart) {
-            hoistedParts.shift();
-
-            if (i < humanParts.length - 1) {
-              humanParts[i] += '#';
-            }
-          } else {
-            humanParts[i] = reporter.format.dim(`${humanPart}#`);
-          }
-        }
-
-        human = humanParts.join('');
-      }
-
-      // skip unnecessary checks for linked dependencies
-      const remoteType = pkg._reference.remote.type;
-      const isLinkedDependency = remoteType === 'link' || remoteType === 'workspace' || remoteType === 'file' && config.linkFileDependencies;
-      const isResolution = pkg._reference.hint === 'resolution';
-      if (isLinkedDependency || isResolution) {
-        continue;
-      }
-
-      if (!(yield (_fs || _load_fs()).exists(loc))) {
-        if (pkg._reference.optional) {
-          reporter.warn(reporter.lang('optionalDepNotInstalled', human));
-        } else {
-          reportError('packageNotInstalled', human);
-        }
-        continue;
-      }
-
-      const pkgLoc = path.join(loc, 'package.json');
-
-      if (yield (_fs || _load_fs()).exists(pkgLoc)) {
-        const packageJson = yield config.readJson(pkgLoc);
-        packageJson.version = semver.clean(packageJson.version);
-
-        if (pkg.version !== packageJson.version) {
-          // node_modules contains wrong version
-          reportError('packageWrongVersion', human, pkg.version, packageJson.version);
-        }
-
-        const deps = Object.assign({}, packageJson.dependencies, packageJson.peerDependencies);
-        bundledDeps[packageJson.name] = packageJson.bundledDependencies || [];
-
-        for (const name in deps) {
-          const range = deps[name];
-          if (!semver.validRange(range, config.looseSemver)) {
-            continue; // exotic
-          }
-
-          const subHuman = `${human}#${name}@${range}`;
-
-          // find the package that this will resolve to, factoring in hoisting
-          const possibles = [];
-          let depLoc;
-          for (let i = parts.length; i >= 0; i--) {
-            const myParts = parts.slice(0, i).concat(name);
-
-            // build package.json location for this position
-            const myDepPkgLoc = path.join(config.cwd, 'node_modules', myParts.join(`${path.sep}node_modules${path.sep}`));
-
-            possibles.push(myDepPkgLoc);
-          }
-          while (possibles.length) {
-            const myDepPkgLoc = possibles.shift();
-            if (yield (_fs || _load_fs()).exists(myDepPkgLoc)) {
-              depLoc = myDepPkgLoc;
-              break;
-            }
-          }
-          if (!depLoc) {
-            // we'll hit the module not install error above when this module is hit
-            continue;
-          }
-
-          const depPkgLoc = path.join(depLoc, 'package.json');
-
-          if (yield (_fs || _load_fs()).exists(depPkgLoc)) {
-            const depPkg = yield config.readJson(depPkgLoc);
-            const foundHuman = `${humaniseLocation(path.dirname(depPkgLoc)).join('#')}@${depPkg.version}`;
-            if (!semver.satisfies(depPkg.version, range, config.looseSemver)) {
-              // module isn't correct semver
-              const resPattern = install.resolutionMap.find(name, originalKey.split('#'));
-              if (resPattern) {
-                const resHuman = `${human}#${resPattern}`;
-
-                var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(resPattern);
-
-                const resRange = _normalizePattern.range;
-
-
-                if (semver.satisfies(depPkg.version, resRange, config.looseSemver)) {
-                  reporter.warn(reporter.lang('incompatibleResolutionVersion', foundHuman, subHuman));
-                  warningCount++;
-                } else {
-                  reportError('packageDontSatisfy', resHuman, foundHuman);
-                }
-              } else {
-                reportError('packageDontSatisfy', subHuman, foundHuman);
-              }
-
-              continue;
-            }
-
-            // check for modules above us that this could be deduped to
-            for (var _iterator4 = possibles, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-              var _ref10;
-
-              if (_isArray4) {
-                if (_i4 >= _iterator4.length) break;
-                _ref10 = _iterator4[_i4++];
-              } else {
-                _i4 = _iterator4.next();
-                if (_i4.done) break;
-                _ref10 = _i4.value;
-              }
-
-              const loc = _ref10;
-
-              const locPkg = path.join(loc, 'package.json');
-
-              if (!(yield (_fs || _load_fs()).exists(locPkg))) {
-                continue;
-              }
-
-              const packageJson = yield config.readJson(locPkg);
-              const packagePath = originalKey.split('#');
-              const rootDep = packagePath[0];
-              const packageName = packagePath[1] || packageJson.name;
-
-              const bundledDep = bundledDeps[rootDep] && bundledDeps[rootDep].indexOf(packageName) !== -1;
-              if (!bundledDep && (packageJson.version === depPkg.version || semver.satisfies(packageJson.version, range, config.looseSemver) && semver.gt(packageJson.version, depPkg.version, config.looseSemver))) {
-                reporter.warn(reporter.lang('couldBeDeduped', subHuman, packageJson.version, `${humaniseLocation(path.dirname(locPkg)).join('#')}@${packageJson.version}`));
-                warningCount++;
-              }
-              break;
-            }
-          }
-        }
-      }
-    }
-
-    if (warningCount > 1) {
-      reporter.info(reporter.lang('foundWarnings', warningCount));
-    }
-
-    if (errCount > 0) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('foundErrors', errCount));
-    } else {
-      reporter.success(reporter.lang('folderInSync'));
-    }
-  });
-
-  return function run(_x9, _x10, _x11, _x12) {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _integrityChecker;
-
-function _load_integrityChecker() {
-  return _integrityChecker = _interopRequireDefault(__webpack_require__(208));
-}
-
-var _integrityChecker2;
-
-function _load_integrityChecker2() {
-  return _integrityChecker2 = __webpack_require__(208);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const semver = __webpack_require__(22);
-const path = __webpack_require__(0);
-
-const requireLockfile = exports.requireLockfile = false;
-const noArguments = exports.noArguments = true;
-
-function hasWrapper(commander) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Verifies if versions in the current project’s package.json match that of yarn’s lock file.');
-  commander.option('--integrity');
-  commander.option('--verify-tree');
-}
-
-/***/ }),
-/* 357 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.getRegistryFolder = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getRegistryFolder = exports.getRegistryFolder = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, name) {
-    if (config.modulesFolder) {
-      return config.modulesFolder;
-    }
-
-    const src = path.join(config.linkFolder, name);
-
-    var _ref2 = yield config.readManifest(src);
-
-    const _registry = _ref2._registry;
-
-    invariant(_registry, 'expected registry');
-
-    const registryFolder = config.registries[_registry].folder;
-    return path.join(config.cwd, registryFolder);
-  });
-
-  return function getRegistryFolder(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (args.length) {
-      for (var _iterator = args, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref4 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref4 = _i.value;
-        }
-
-        const name = _ref4;
-
-        const src = path.join(config.linkFolder, name);
-
-        if (yield (_fs || _load_fs()).exists(src)) {
-          const folder = yield getRegistryFolder(config, name);
-          const dest = path.join(folder, name);
-
-          yield (_fs || _load_fs()).unlink(dest);
-          yield (_fs || _load_fs()).mkdirp(path.dirname(dest));
-          yield (_fs || _load_fs()).symlink(src, dest);
-          reporter.success(reporter.lang('linkUsing', name));
-        } else {
-          throw new (_errors || _load_errors()).MessageError(reporter.lang('linkMissing', name));
-        }
-      }
-    } else {
-      // add cwd module to the global registry
-      const manifest = yield config.readRootManifest();
-      const name = manifest.name;
-      if (!name) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('unknownPackageName'));
-      }
-
-      const linkLoc = path.join(config.linkFolder, name);
-      if (yield (_fs || _load_fs()).exists(linkLoc)) {
-        reporter.warn(reporter.lang('linkCollision', name));
-      } else {
-        yield (_fs || _load_fs()).mkdirp(path.dirname(linkLoc));
-        yield (_fs || _load_fs()).symlink(config.cwd, linkLoc);
-
-        // If there is a `bin` defined in the package.json,
-        // link each bin to the global bin
-        if (manifest.bin) {
-          const globalBinFolder = yield (0, (_global || _load_global()).getBinFolder)(config, flags);
-          for (const binName in manifest.bin) {
-            const binSrc = manifest.bin[binName];
-            const binSrcLoc = path.join(linkLoc, binSrc);
-            const binDestLoc = path.join(globalBinFolder, binName);
-            if (yield (_fs || _load_fs()).exists(binDestLoc)) {
-              reporter.warn(reporter.lang('binLinkCollision', binName));
-            } else {
-              if (process.platform === 'win32') {
-                yield cmdShim(binSrcLoc, binDestLoc, { createPwshFile: false });
-              } else {
-                yield (_fs || _load_fs()).symlink(binSrcLoc, binDestLoc);
-              }
-            }
-          }
-        }
-
-        reporter.success(reporter.lang('linkRegistered', name));
-        reporter.info(reporter.lang('linkRegisteredMessage', name));
-      }
-    }
-  });
-
-  return function run(_x3, _x4, _x5, _x6) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _global;
-
-function _load_global() {
-  return _global = __webpack_require__(121);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const cmdShim = __webpack_require__(201);
-const path = __webpack_require__(0);
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Symlink a package folder during development.');
-}
-
-/***/ }),
-/* 358 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.buildTree = exports.requireLockfile = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let buildTree = exports.buildTree = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (resolver, linker, patterns, opts, onlyFresh, ignoreHoisted) {
-    const treesByKey = {};
-    const trees = [];
-    const flatTree = yield linker.getFlatHoistedTree(patterns);
-
-    // If using workspaces, filter out the virtual manifest
-    const workspaceLayout = resolver.workspaceLayout;
-
-    const hoisted = workspaceLayout && workspaceLayout.virtualManifestName ? flatTree.filter(function ([key]) {
-      return key.indexOf(workspaceLayout.virtualManifestName) === -1;
-    }) : flatTree;
-
-    const hoistedByKey = {};
-    for (var _iterator2 = hoisted, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref4 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref4 = _i2.value;
-      }
-
-      const _ref3 = _ref4;
-      const key = _ref3[0];
-      const info = _ref3[1];
-
-      hoistedByKey[key] = info;
-    }
-
-    // build initial trees
-    for (var _iterator3 = hoisted, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref6;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref6 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref6 = _i3.value;
-      }
-
-      const _ref5 = _ref6;
-      const info = _ref5[1];
-
-      const ref = info.pkg._reference;
-      const hint = null;
-      const parent = getParent(info.key, treesByKey);
-      const children = [];
-      let depth = 0;
-      let color = 'bold';
-      invariant(ref, 'expected reference');
-
-      if (onlyFresh) {
-        let isFresh = false;
-        for (var _iterator5 = ref.patterns, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-          var _ref9;
-
-          if (_isArray5) {
-            if (_i5 >= _iterator5.length) break;
-            _ref9 = _iterator5[_i5++];
-          } else {
-            _i5 = _iterator5.next();
-            if (_i5.done) break;
-            _ref9 = _i5.value;
-          }
-
-          const pattern = _ref9;
-
-          if (resolver.isNewPattern(pattern)) {
-            isFresh = true;
-            break;
-          }
-        }
-        if (!isFresh) {
-          continue;
-        }
-      }
-
-      if (info.originalKey !== info.key || opts.reqDepth === 0) {
-        // was hoisted
-        color = null;
-      }
-      // check parent to obtain next depth
-      if (parent && parent.depth > 0) {
-        depth = parent.depth + 1;
-      } else {
-        depth = 0;
-      }
-
-      const topLevel = opts.reqDepth === 0 && !parent;
-      const showAll = opts.reqDepth === -1;
-      const nextDepthIsValid = depth + 1 <= Number(opts.reqDepth);
-
-      if (topLevel || nextDepthIsValid || showAll) {
-        treesByKey[info.key] = {
-          name: `${info.pkg.name}@${info.pkg.version}`,
-          children,
-          hint,
-          color,
-          depth
-        };
-      }
-
-      // add in dummy children for hoisted dependencies
-      const nextChildDepthIsValid = depth + 1 < Number(opts.reqDepth);
-      invariant(ref, 'expected reference');
-      if (!ignoreHoisted && nextDepthIsValid || showAll) {
-        for (var _iterator6 = resolver.dedupePatterns(ref.dependencies), _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-          var _ref10;
-
-          if (_isArray6) {
-            if (_i6 >= _iterator6.length) break;
-            _ref10 = _iterator6[_i6++];
-          } else {
-            _i6 = _iterator6.next();
-            if (_i6.done) break;
-            _ref10 = _i6.value;
-          }
-
-          const pattern = _ref10;
-
-          const pkg = resolver.getStrictResolvedPattern(pattern);
-
-          if (!hoistedByKey[`${info.key}#${pkg.name}`] && (nextChildDepthIsValid || showAll)) {
-            children.push({
-              name: pattern,
-              color: 'dim',
-              shadow: true
-            });
-          }
-        }
-      }
-    }
-
-    // add children
-    for (var _iterator4 = hoisted, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref8;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref8 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref8 = _i4.value;
-      }
-
-      const _ref7 = _ref8;
-      const info = _ref7[1];
-
-      const tree = treesByKey[info.key];
-      const parent = getParent(info.key, treesByKey);
-      if (!tree) {
-        continue;
-      }
-
-      if (info.key.split('#').length === 1) {
-        trees.push(tree);
-        continue;
-      }
-
-      if (parent) {
-        parent.children.push(tree);
-      }
-    }
-
-    return { trees, count: buildCount(trees) };
-  });
-
-  return function buildTree(_x, _x2, _x3, _x4, _x5, _x6) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref11 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-    var _ref12 = yield install.fetchRequestFromCwd();
-
-    const depRequests = _ref12.requests,
-          patterns = _ref12.patterns,
-          manifest = _ref12.manifest,
-          workspaceLayout = _ref12.workspaceLayout;
-
-    yield install.resolver.init(depRequests, {
-      isFlat: install.flags.flat,
-      isFrozen: install.flags.frozenLockfile,
-      workspaceLayout
-    });
-
-    let activePatterns = [];
-    if (config.production) {
-      const devDeps = getDevDeps(manifest);
-      activePatterns = patterns.filter(function (pattern) {
-        return !devDeps.has(pattern);
-      });
-    } else {
-      activePatterns = patterns;
-    }
-
-    const opts = {
-      reqDepth: getReqDepth(flags.depth)
-    };
-
-    var _ref13 = yield buildTree(install.resolver, install.linker, activePatterns, opts);
-
-    let trees = _ref13.trees;
-
-
-    if (args.length) {
-      reporter.warn(reporter.lang('deprecatedListArgs'));
-    }
-    if (args.length || flags.pattern) {
-      trees = trees.filter(function (tree) {
-        return filterTree(tree, args, flags.pattern);
-      });
-    }
-
-    reporter.tree('list', trees, { force: true });
-  });
-
-  return function run(_x7, _x8, _x9, _x10) {
-    return _ref11.apply(this, arguments);
-  };
-})();
-
-exports.getParent = getParent;
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-exports.getReqDepth = getReqDepth;
-exports.filterTree = filterTree;
-exports.getDevDeps = getDevDeps;
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const micromatch = __webpack_require__(114);
-
-const requireLockfile = exports.requireLockfile = true;
-
-function buildCount(trees) {
-  if (!trees || !trees.length) {
-    return 0;
-  }
-
-  let count = 0;
-
-  for (var _iterator = trees, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const tree = _ref;
-
-    if (tree.shadow) {
-      continue;
-    }
-
-    count++;
-    count += buildCount(tree.children);
-  }
-
-  return count;
-}
-
-function getParent(key, treesByKey) {
-  const parentKey = key.slice(0, key.lastIndexOf('#'));
-  return treesByKey[parentKey];
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Lists installed packages.');
-  commander.option('--depth [depth]', 'Limit the depth of the shown dependencies');
-  commander.option('--pattern [pattern]', 'Filter dependencies by pattern');
-}
-
-function getReqDepth(inputDepth) {
-  return inputDepth && /^\d+$/.test(inputDepth) ? Number(inputDepth) : -1;
-}
-
-function filterTree(tree, filters, pattern = '') {
-  if (tree.children) {
-    tree.children = tree.children.filter(child => filterTree(child, filters, pattern));
-  }
-
-  const notDim = tree.color !== 'dim';
-  const hasChildren = tree.children == null ? false : tree.children.length > 0;
-  const name = tree.name.slice(0, tree.name.lastIndexOf('@'));
-  const found = micromatch.any(name, filters) || micromatch.contains(name, pattern);
-
-  return notDim && (found || hasChildren);
-}
-
-function getDevDeps(manifest) {
-  if (manifest.devDependencies) {
-    return new Set(Object.keys(manifest.devDependencies).map(key => `${key}@${manifest.devDependencies[key]}`));
-  } else {
-    return new Set();
-  }
-}
-
-/***/ }),
-/* 359 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.requireLockfile = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const isWorkspaceRoot = config.workspaceRootFolder && config.cwd === config.workspaceRootFolder;
-
-    if (!args.length) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('tooFewArguments', 1));
-    }
-
-    // running "yarn remove something" in a workspace root is often a mistake
-    if (isWorkspaceRoot && !flags.ignoreWorkspaceRootCheck) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspacesRemoveRootCheck'));
-    }
-
-    const totalSteps = args.length + 1;
-    let step = 0;
-
-    // load manifests
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder);
-    const rootManifests = yield config.getRootManifests();
-    const manifests = [];
-
-    for (var _iterator = args, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const name = _ref2;
-
-      reporter.step(++step, totalSteps, `Removing module ${name}`, emoji.get('wastebasket'));
-
-      let found = false;
-
-      for (var _iterator2 = Object.keys((_index || _load_index()).registries), _isArray2 = Array.isArray(_iterator2), _i3 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i3 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i3++];
-        } else {
-          _i3 = _iterator2.next();
-          if (_i3.done) break;
-          _ref3 = _i3.value;
-        }
-
-        const registryName = _ref3;
-
-        const registry = config.registries[registryName];
-        const object = rootManifests[registryName].object;
-
-        for (var _iterator3 = (_constants || _load_constants()).DEPENDENCY_TYPES, _isArray3 = Array.isArray(_iterator3), _i4 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref4;
-
-          if (_isArray3) {
-            if (_i4 >= _iterator3.length) break;
-            _ref4 = _iterator3[_i4++];
-          } else {
-            _i4 = _iterator3.next();
-            if (_i4.done) break;
-            _ref4 = _i4.value;
-          }
-
-          const type = _ref4;
-
-          const deps = object[type];
-          if (deps && deps[name]) {
-            found = true;
-            delete deps[name];
-          }
-        }
-
-        const possibleManifestLoc = path.join(config.cwd, registry.folder, name);
-        if (yield (_fs || _load_fs()).exists(possibleManifestLoc)) {
-          const manifest = yield config.maybeReadManifest(possibleManifestLoc, registryName);
-          if (manifest) {
-            manifests.push([possibleManifestLoc, manifest]);
-          }
-        }
-      }
-
-      if (!found) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('moduleNotInManifest'));
-      }
-    }
-
-    // save manifests
-    yield config.saveRootManifests(rootManifests);
-
-    // run hooks - npm runs these one after another
-    var _arr = ['preuninstall', 'uninstall', 'postuninstall'];
-    for (var _i2 = 0; _i2 < _arr.length; _i2++) {
-      const action = _arr[_i2];
-      for (var _iterator4 = manifests, _isArray4 = Array.isArray(_iterator4), _i5 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray4) {
-          if (_i5 >= _iterator4.length) break;
-          _ref6 = _iterator4[_i5++];
-        } else {
-          _i5 = _iterator4.next();
-          if (_i5.done) break;
-          _ref6 = _i5.value;
-        }
-
-        const _ref5 = _ref6;
-        const loc = _ref5[0];
-
-        yield config.executeLifecycleScript(action, loc);
-      }
-    }
-
-    // reinstall so we can get the updated lockfile
-    reporter.step(++step, totalSteps, reporter.lang('uninstallRegenerate'), emoji.get('hammer'));
-    const installFlags = (0, (_extends2 || _load_extends()).default)({ force: true, workspaceRootIsCwd: true }, flags);
-    const reinstall = new (_install || _load_install()).Install(installFlags, config, new (_index2 || _load_index2()).NoopReporter(), lockfile);
-    yield reinstall.init();
-
-    //
-    reporter.success(reporter.lang('uninstalledPackages'));
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _index2;
-
-function _load_index2() {
-  return _index2 = __webpack_require__(200);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-const emoji = __webpack_require__(302);
-
-const requireLockfile = exports.requireLockfile = true;
-
-function setFlags(commander) {
-  commander.description('Removes a package from your direct dependencies updating your package.json and yarn.lock.');
-  commander.usage('remove [packages ...] [flags]');
-  commander.option('-W, --ignore-workspace-root-check', 'required to run yarn remove inside a workspace root');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 360 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.getBinEntries = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getBinEntries = exports.getBinEntries = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    const binFolders = new Set();
-    const binEntries = new Map();
-
-    // Setup the node_modules/.bin folders for analysis
-    for (var _iterator2 = config.registryFolders, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref4 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref4 = _i2.value;
-      }
-
-      const registryFolder = _ref4;
-
-      binFolders.add(path.resolve(config.cwd, registryFolder, '.bin'));
-      binFolders.add(path.resolve(config.lockfileFolder, registryFolder, '.bin'));
-    }
-
-    // Same thing, but for the pnp dependencies, located inside the cache
-    if (yield (_fs || _load_fs()).exists(`${config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`)) {
-      const pnpApi = (0, (_dynamicRequire || _load_dynamicRequire()).dynamicRequire)(`${config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`);
-
-      const packageLocator = pnpApi.findPackageLocator(`${config.cwd}/`);
-      const packageInformation = pnpApi.getPackageInformation(packageLocator);
-
-      for (var _iterator3 = packageInformation.packageDependencies.entries(), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref6 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref6 = _i3.value;
-        }
-
-        const _ref5 = _ref6;
-        const name = _ref5[0];
-        const reference = _ref5[1];
-
-        const dependencyInformation = pnpApi.getPackageInformation({ name, reference });
-
-        if (dependencyInformation.packageLocation) {
-          binFolders.add(`${dependencyInformation.packageLocation}/.bin`);
-        }
-      }
-    }
-
-    // Build up a list of possible scripts by exploring the folders marked for analysis
-    for (var _iterator4 = binFolders, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref7 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref7 = _i4.value;
-      }
-
-      const binFolder = _ref7;
-
-      if (yield (_fs || _load_fs()).exists(binFolder)) {
-        for (var _iterator5 = yield (_fs || _load_fs()).readdir(binFolder), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-          var _ref8;
-
-          if (_isArray5) {
-            if (_i5 >= _iterator5.length) break;
-            _ref8 = _iterator5[_i5++];
-          } else {
-            _i5 = _iterator5.next();
-            if (_i5.done) break;
-            _ref8 = _i5.value;
-          }
-
-          const name = _ref8;
-
-          binEntries.set(name, path.join(binFolder, name));
-        }
-      }
-    }
-
-    return binEntries;
-  });
-
-  return function getBinEntries(_x) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let realRunCommand = (() => {
-      var _ref13 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (action, args) {
-        // build up list of commands
-        const cmds = [];
-
-        if (pkgScripts && action in pkgScripts) {
-          const preAction = `pre${action}`;
-          if (preAction in pkgScripts) {
-            cmds.push([preAction, pkgScripts[preAction]]);
-          }
-
-          const script = scripts.get(action);
-          invariant(script, 'Script must exist');
-          cmds.push([action, script]);
-
-          const postAction = `post${action}`;
-          if (postAction in pkgScripts) {
-            cmds.push([postAction, pkgScripts[postAction]]);
-          }
-        } else if (scripts.has(action)) {
-          const script = scripts.get(action);
-          invariant(script, 'Script must exist');
-          cmds.push([action, script]);
-        }
-
-        if (cmds.length) {
-          const ignoreEngines = !!(flags.ignoreEngines || config.getOption('ignore-engines'));
-          try {
-            yield (0, (_packageCompatibility || _load_packageCompatibility()).checkOne)(pkg, config, ignoreEngines);
-          } catch (err) {
-            throw err instanceof (_errors || _load_errors()).MessageError ? new (_errors || _load_errors()).MessageError(reporter.lang('cannotRunWithIncompatibleEnv')) : err;
-          }
-
-          // Disable wrapper in executed commands
-          process.env.YARN_WRAP_OUTPUT = 'false';
-          for (var _iterator8 = cmds, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-            var _ref15;
-
-            if (_isArray8) {
-              if (_i8 >= _iterator8.length) break;
-              _ref15 = _iterator8[_i8++];
-            } else {
-              _i8 = _iterator8.next();
-              if (_i8.done) break;
-              _ref15 = _i8.value;
-            }
-
-            const _ref14 = _ref15;
-            const stage = _ref14[0];
-            const cmd = _ref14[1];
-
-            // only tack on trailing arguments for default script, ignore for pre and post - #1595
-            const cmdWithArgs = stage === action ? sh`${unquoted(cmd)} ${args}` : cmd;
-            const customShell = config.getOption('script-shell');
-            yield (0, (_executeLifecycleScript || _load_executeLifecycleScript()).execCommand)({
-              stage,
-              config,
-              cmd: cmdWithArgs,
-              cwd: flags.into || config.cwd,
-              isInteractive: true,
-              customShell: customShell ? String(customShell) : undefined
-            });
-          }
-        } else if (action === 'env') {
-          reporter.log(JSON.stringify((yield (0, (_executeLifecycleScript || _load_executeLifecycleScript()).makeEnv)('env', config.cwd, config)), null, 2), { force: true });
-        } else {
-          let suggestion;
-
-          for (const commandName in scripts) {
-            const steps = leven(commandName, action);
-            if (steps < 2) {
-              suggestion = commandName;
-            }
-          }
-
-          let msg = `Command ${JSON.stringify(action)} not found.`;
-          if (suggestion) {
-            msg += ` Did you mean ${JSON.stringify(suggestion)}?`;
-          }
-          throw new (_errors || _load_errors()).MessageError(msg);
-        }
-      });
-
-      return function realRunCommand(_x6, _x7) {
-        return _ref13.apply(this, arguments);
-      };
-    })();
-
-    // list possible scripts if none specified
-
-
-    const pkg = yield config.readManifest(config.cwd);
-
-    const binCommands = new Set();
-    const pkgCommands = new Set();
-
-    const scripts = new Map();
-
-    for (var _iterator6 = yield getBinEntries(config), _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray6) {
-        if (_i6 >= _iterator6.length) break;
-        _ref11 = _iterator6[_i6++];
-      } else {
-        _i6 = _iterator6.next();
-        if (_i6.done) break;
-        _ref11 = _i6.value;
-      }
-
-      const _ref10 = _ref11;
-      const name = _ref10[0];
-      const loc = _ref10[1];
-
-      scripts.set(name, quoteForShell(loc));
-      binCommands.add(name);
-    }
-
-    const pkgScripts = pkg.scripts;
-
-    if (pkgScripts) {
-      for (var _iterator7 = Object.keys(pkgScripts).sort(), _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref12;
-
-        if (_isArray7) {
-          if (_i7 >= _iterator7.length) break;
-          _ref12 = _iterator7[_i7++];
-        } else {
-          _i7 = _iterator7.next();
-          if (_i7.done) break;
-          _ref12 = _i7.value;
-        }
-
-        const name = _ref12;
-
-        scripts.set(name, pkgScripts[name] || '');
-        pkgCommands.add(name);
-      }
-    }
-
-    function runCommand([action, ...args]) {
-      return (0, (_hooks || _load_hooks()).callThroughHook)('runScript', () => realRunCommand(action, args), { action, args });
-    }
-
-    if (args.length === 0) {
-      if (binCommands.size > 0) {
-        reporter.info(`${reporter.lang('binCommands') + Array.from(binCommands).join(', ')}`);
-      } else {
-        reporter.error(reporter.lang('noBinAvailable'));
-      }
-
-      const printedCommands = new Map();
-
-      for (var _iterator9 = pkgCommands, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-        var _ref16;
-
-        if (_isArray9) {
-          if (_i9 >= _iterator9.length) break;
-          _ref16 = _iterator9[_i9++];
-        } else {
-          _i9 = _iterator9.next();
-          if (_i9.done) break;
-          _ref16 = _i9.value;
-        }
-
-        const pkgCommand = _ref16;
-
-        const action = scripts.get(pkgCommand);
-        invariant(action, 'Action must exists');
-        printedCommands.set(pkgCommand, action);
-      }
-
-      if (pkgCommands.size > 0) {
-        reporter.info(`${reporter.lang('possibleCommands')}`);
-        reporter.list('possibleCommands', Array.from(pkgCommands), toObject(printedCommands));
-        if (!flags.nonInteractive) {
-          yield reporter.question(reporter.lang('commandQuestion')).then(function (answer) {
-            return runCommand(answer.trim().split(' '));
-          }, function () {
-            return reporter.error(reporter.lang('commandNotSpecified'));
-          });
-        }
-      } else {
-        reporter.error(reporter.lang('noScriptsAvailable'));
-      }
-      return Promise.resolve();
-    } else {
-      return runCommand(args);
-    }
-  });
-
-  return function run(_x2, _x3, _x4, _x5) {
-    return _ref9.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = __webpack_require__(111);
-}
-
-var _dynamicRequire;
-
-function _load_dynamicRequire() {
-  return _dynamicRequire = __webpack_require__(371);
-}
-
-var _hooks;
-
-function _load_hooks() {
-  return _hooks = __webpack_require__(374);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _packageCompatibility;
-
-function _load_packageCompatibility() {
-  return _packageCompatibility = __webpack_require__(209);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const leven = __webpack_require__(747);
-const path = __webpack_require__(0);
-
-var _require = __webpack_require__(780);
-
-const quoteForShell = _require.quoteForShell,
-      sh = _require.sh,
-      unquoted = _require.unquoted;
-
-
-function toObject(input) {
-  const output = Object.create(null);
-
-  for (var _iterator = input.entries(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref2 = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref2 = _i.value;
-    }
-
-    const _ref = _ref2;
-    const key = _ref[0];
-    const val = _ref[1];
-
-    output[key] = val;
-  }
-
-  return output;
-}
-
-function setFlags(commander) {
-  commander.description('Runs a defined package script.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 361 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.hasWrapper = exports.run = exports.getName = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getName = exports.getName = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (args, config) {
-    let name = args.shift();
-
-    if (!name) {
-      const pkg = yield config.readRootManifest();
-      name = pkg.name;
-    }
-
-    if (name) {
-      if (!(0, (_validate || _load_validate()).isValidPackageName)(name)) {
-        throw new (_errors || _load_errors()).MessageError(config.reporter.lang('invalidPackageName'));
-      }
-
-      return (_npmRegistry || _load_npmRegistry()).default.escapeName(name);
-    } else {
-      throw new (_errors || _load_errors()).MessageError(config.reporter.lang('unknownPackageName'));
-    }
-  });
-
-  return function getName(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const name = yield getName(args, config);
-
-    reporter.step(1, 1, reporter.lang('gettingTags'));
-    const tags = yield config.registries.npm.request(`-/package/${name}/dist-tags`);
-
-    if (tags) {
-      reporter.info(`Package ${name}`);
-      for (const name in tags) {
-        reporter.info(`${name}: ${tags[name]}`);
-      }
-    }
-
-    if (!tags) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('packageNotFoundRegistry', name, 'npm'));
-    }
-  });
-
-  return function list(_x3, _x4, _x5, _x6) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let remove = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (args.length !== 2) {
-      return false;
-    }
-
-    const name = yield getName(args, config);
-    const tag = args.shift();
-
-    reporter.step(1, 3, reporter.lang('loggingIn'));
-    const revoke = yield (0, (_login || _load_login()).getToken)(config, reporter, name);
-
-    reporter.step(2, 3, reporter.lang('deletingTags'));
-    const result = yield config.registries.npm.request(`-/package/${name}/dist-tags/${encodeURI(tag)}`, {
-      method: 'DELETE'
-    });
-
-    if (result === false) {
-      reporter.error(reporter.lang('deletedTagFail'));
-    } else {
-      reporter.success(reporter.lang('deletedTag'));
-    }
-
-    reporter.step(3, 3, reporter.lang('revokingToken'));
-    yield revoke();
-
-    if (result === false) {
-      throw new Error();
-    } else {
-      return true;
-    }
-  });
-
-  return function remove(_x7, _x8, _x9, _x10) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _login;
-
-function _load_login() {
-  return _login = __webpack_require__(107);
-}
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-var _validate;
-
-function _load_validate() {
-  return _validate = __webpack_require__(125);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function setFlags(commander) {
-  commander.description('Add, remove, or list tags on a package.');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('tag', {
-  add(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (args.length !== 2) {
-        return false;
-      }
-
-      var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(args.shift());
-
-      const name = _normalizePattern.name,
-            range = _normalizePattern.range,
-            hasVersion = _normalizePattern.hasVersion;
-
-      if (!hasVersion) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('requiredVersionInRange'));
-      }
-      if (!(0, (_validate || _load_validate()).isValidPackageName)(name)) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidPackageName'));
-      }
-
-      const tag = args.shift();
-
-      reporter.step(1, 3, reporter.lang('loggingIn'));
-      const revoke = yield (0, (_login || _load_login()).getToken)(config, reporter, name);
-
-      reporter.step(2, 3, reporter.lang('creatingTag', tag, range));
-      const result = yield config.registries.npm.request(`-/package/${(_npmRegistry || _load_npmRegistry()).default.escapeName(name)}/dist-tags/${encodeURI(tag)}`, {
-        method: 'PUT',
-        body: range
-      });
-
-      if (result != null && result.ok) {
-        reporter.success(reporter.lang('createdTag'));
-      } else {
-        reporter.error(reporter.lang('createdTagFail'));
-      }
-
-      reporter.step(3, 3, reporter.lang('revokingToken'));
-      yield revoke();
-
-      if (result != null && result.ok) {
-        return true;
-      } else {
-        throw new Error();
-      }
-    })();
-  },
-
-  rm(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.warn(`\`yarn tag rm\` is deprecated. Please use \`yarn tag remove\`.`);
-      yield remove(config, reporter, flags, args);
-    })();
-  },
-
-  remove(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield remove(config, reporter, flags, args);
-    })();
-  },
-
-  ls(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.warn(`\`yarn tag ls\` is deprecated. Please use \`yarn tag list\`.`);
-      yield list(config, reporter, flags, args);
-    })();
-  },
-
-  list(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield list(config, reporter, flags, args);
-    })();
-  }
-}, ['add <pkg>@<version> [<tag>]', 'remove <pkg> <tag>', 'list [<pkg>]']);
-
-const run = _buildSubCommands.run,
-      hasWrapper = _buildSubCommands.hasWrapper,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.hasWrapper = hasWrapper;
-exports.examples = examples;
-
-/***/ }),
-/* 362 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.requireLockfile = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const outdatedFieldName = flags.latest ? 'latest' : 'wanted';
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder);
-
-    const deps = yield (0, (_upgrade || _load_upgrade()).getOutdated)(config, reporter, (0, (_extends2 || _load_extends()).default)({}, flags, { includeWorkspaceDeps: true }), lockfile, args);
-
-    if (deps.length === 0) {
-      reporter.success(reporter.lang('allDependenciesUpToDate'));
-      return;
-    }
-
-    // Fail early with runtime compatibility checks so that it doesn't fail after you've made your selections
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-    yield install.checkCompatibility();
-
-    const usesWorkspaces = !!config.workspaceRootFolder;
-
-    const maxLengthArr = {
-      name: 'name'.length,
-      current: 'from'.length,
-      range: 'latest'.length,
-      [outdatedFieldName]: 'to'.length,
-      workspaceName: 'workspace'.length
-    };
-
-    const keysWithDynamicLength = ['name', 'current', outdatedFieldName];
-
-    if (!flags.latest) {
-      maxLengthArr.range = 'range'.length;
-      keysWithDynamicLength.push('range');
-    }
-
-    if (usesWorkspaces) {
-      keysWithDynamicLength.push('workspaceName');
-    }
-
-    deps.forEach(function (dep) {
-      return keysWithDynamicLength.forEach(function (key) {
-        maxLengthArr[key] = Math.max(maxLengthArr[key], dep[key].length);
-      });
-    });
-
-    // Depends on maxLengthArr
-    const addPadding = function addPadding(dep) {
-      return function (key) {
-        return `${dep[key]}${' '.repeat(maxLengthArr[key] - dep[key].length)}`;
-      };
-    };
-    const headerPadding = function headerPadding(header, key) {
-      return `${reporter.format.bold.underline(header)}${' '.repeat(maxLengthArr[key] - header.length)}`;
-    };
-
-    const colorizeName = function colorizeName(from, to) {
-      return reporter.format[(0, (_colorForVersions || _load_colorForVersions()).default)(from, to)];
-    };
-
-    const getNameFromHint = function getNameFromHint(hint) {
-      return hint ? `${hint}Dependencies` : 'dependencies';
-    };
-
-    const makeRow = function makeRow(dep) {
-      const padding = addPadding(dep);
-      const name = colorizeName(dep.current, dep[outdatedFieldName])(padding('name'));
-      const current = reporter.format.blue(padding('current'));
-      const latest = (0, (_colorizeDiff || _load_colorizeDiff()).default)(dep.current, padding(outdatedFieldName), reporter);
-      const url = reporter.format.cyan(dep.url);
-      const range = reporter.format.blue(flags.latest ? 'latest' : padding('range'));
-      if (usesWorkspaces) {
-        const workspace = padding('workspaceName');
-        return `${name}  ${range}  ${current}  ❯  ${latest}  ${workspace}  ${url}`;
-      } else {
-        return `${name}  ${range}  ${current}  ❯  ${latest}  ${url}`;
-      }
-    };
-
-    const makeHeaderRow = function makeHeaderRow() {
-      const name = headerPadding('name', 'name');
-      const range = headerPadding('range', 'range');
-      const from = headerPadding('from', 'current');
-      const to = headerPadding('to', outdatedFieldName);
-      const url = reporter.format.bold.underline('url');
-      if (usesWorkspaces) {
-        const workspace = headerPadding('workspace', 'workspaceName');
-        return `  ${name}  ${range}  ${from}     ${to}  ${workspace}  ${url}`;
-      } else {
-        return `  ${name}  ${range}  ${from}     ${to}  ${url}`;
-      }
-    };
-
-    const groupedDeps = deps.reduce(function (acc, dep) {
-      const hint = dep.hint,
-            name = dep.name,
-            upgradeTo = dep.upgradeTo;
-
-      const version = dep[outdatedFieldName];
-      const key = getNameFromHint(hint);
-      const xs = acc[key] || [];
-      acc[key] = xs.concat({
-        name: makeRow(dep),
-        value: dep,
-        short: `${name}@${version}`,
-        upgradeTo
-      });
-      return acc;
-    }, {});
-
-    const flatten = function flatten(xs) {
-      return xs.reduce(function (ys, y) {
-        return ys.concat(Array.isArray(y) ? flatten(y) : y);
-      }, []);
-    };
-
-    const choices = flatten(Object.keys(groupedDeps).map(function (key) {
-      return [new (_inquirer || _load_inquirer()).default.Separator(reporter.format.bold.underline.green(key)), new (_inquirer || _load_inquirer()).default.Separator(makeHeaderRow()), groupedDeps[key], new (_inquirer || _load_inquirer()).default.Separator(' ')];
-    }));
-
-    try {
-      const red = reporter.format.red('<red>');
-      const yellow = reporter.format.yellow('<yellow>');
-      const green = reporter.format.green('<green>');
-      reporter.info(reporter.lang('legendColorsForVersionUpdates', red, yellow, green));
-
-      const answers = yield reporter.prompt('Choose which packages to update.', choices, {
-        name: 'packages',
-        type: 'checkbox',
-        validate: function validate(answer) {
-          return !!answer.length || 'You must choose at least one package.';
-        }
-      });
-
-      const getPattern = function getPattern({ upgradeTo }) {
-        return upgradeTo;
-      };
-      const isHint = function isHint(x) {
-        return function ({ hint }) {
-          return hint === x;
-        };
-      };
-
-      var _arr = [null, 'dev', 'optional', 'peer'];
-      for (var _i = 0; _i < _arr.length; _i++) {
-        const hint = _arr[_i];
-        // Reset dependency flags
-        flags.dev = hint === 'dev';
-        flags.peer = hint === 'peer';
-        flags.optional = hint === 'optional';
-        flags.ignoreWorkspaceRootCheck = true;
-        flags.includeWorkspaceDeps = false;
-        flags.workspaceRootIsCwd = false;
-        const deps = answers.filter(isHint(hint));
-        if (deps.length) {
-          const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-          var _ref2 = yield install.fetchRequestFromCwd();
-
-          const packagePatterns = _ref2.requests;
-
-          const depsByWorkspace = deps.reduce(function (acc, dep) {
-            const workspaceLoc = dep.workspaceLoc;
-
-            const xs = acc[workspaceLoc] || [];
-            acc[workspaceLoc] = xs.concat(dep);
-            return acc;
-          }, {});
-          const cwd = config.cwd;
-          for (var _iterator = Object.keys(depsByWorkspace), _isArray = Array.isArray(_iterator), _i2 = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-            var _ref3;
-
-            if (_isArray) {
-              if (_i2 >= _iterator.length) break;
-              _ref3 = _iterator[_i2++];
-            } else {
-              _i2 = _iterator.next();
-              if (_i2.done) break;
-              _ref3 = _i2.value;
-            }
-
-            const loc = _ref3;
-
-            const patterns = depsByWorkspace[loc].map(getPattern);
-            (0, (_upgrade || _load_upgrade()).cleanLockfile)(lockfile, deps, packagePatterns, reporter);
-            reporter.info(reporter.lang('updateInstalling', getNameFromHint(hint)));
-            if (loc !== '') {
-              config.cwd = path.resolve(path.dirname(loc));
-            }
-            const add = new (_add || _load_add()).Add(patterns, flags, config, reporter, lockfile);
-            yield add.init();
-            config.cwd = cwd;
-          }
-        }
-      }
-    } catch (e) {
-      Promise.reject(e);
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _inquirer;
-
-function _load_inquirer() {
-  return _inquirer = _interopRequireDefault(__webpack_require__(276));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _add;
-
-function _load_add() {
-  return _add = __webpack_require__(165);
-}
-
-var _upgrade;
-
-function _load_upgrade() {
-  return _upgrade = __webpack_require__(207);
-}
-
-var _colorForVersions;
-
-function _load_colorForVersions() {
-  return _colorForVersions = _interopRequireDefault(__webpack_require__(369));
-}
-
-var _colorizeDiff;
-
-function _load_colorizeDiff() {
-  return _colorizeDiff = _interopRequireDefault(__webpack_require__(370));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-const requireLockfile = exports.requireLockfile = true;
-
-function setFlags(commander) {
-  commander.description('Provides an easy way to update outdated packages.');
-  commander.usage('upgrade-interactive [flags]');
-  commander.option('-S, --scope <scope>', 'upgrade packages under the specified scope');
-  commander.option('--latest', 'list the latest version of packages, ignoring version ranges in package.json');
-  commander.option('-E, --exact', 'install exact version. Only used when --latest is specified.');
-  commander.option('-T, --tilde', 'install most recent release with the same minor version. Only used when --latest is specified.');
-  commander.option('-C, --caret', 'install most recent release with the same major version. Only used when --latest is specified.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 363 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.setVersion = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let setVersion = exports.setVersion = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args, required) {
-    const pkg = yield config.readRootManifest();
-    const pkgLoc = pkg._loc;
-    const scripts = (0, (_map || _load_map()).default)();
-    let newVersion = flags.newVersion;
-    let identifier = undefined;
-    if (flags.preid) {
-      identifier = flags.preid;
-    }
-    invariant(pkgLoc, 'expected package location');
-
-    if (args.length && !newVersion) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidVersionArgument', NEW_VERSION_FLAG));
-    }
-
-    function runLifecycle(lifecycle) {
-      if (scripts[lifecycle]) {
-        return (0, (_executeLifecycleScript || _load_executeLifecycleScript()).execCommand)({ stage: lifecycle, config, cmd: scripts[lifecycle], cwd: config.cwd, isInteractive: true });
-      }
-
-      return Promise.resolve();
-    }
-
-    function isCommitHooksDisabled() {
-      return flags.commitHooks === false || config.getOption('version-commit-hooks') === false;
-    }
-
-    if (pkg.scripts) {
-      // inherit `scripts` from manifest
-      Object.assign(scripts, pkg.scripts);
-    }
-
-    // get old version
-    let oldVersion = pkg.version;
-    if (oldVersion) {
-      reporter.info(`${reporter.lang('currentVersion')}: ${oldVersion}`);
-    } else {
-      oldVersion = '0.0.0';
-    }
-
-    // get new version
-    if (newVersion && !isValidNewVersion(oldVersion, newVersion, config.looseSemver, identifier)) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidVersion'));
-    }
-
-    // get new version by bumping old version, if requested
-    if (!newVersion) {
-      if (flags.major) {
-        newVersion = semver.inc(oldVersion, 'major');
-      } else if (flags.minor) {
-        newVersion = semver.inc(oldVersion, 'minor');
-      } else if (flags.patch) {
-        newVersion = semver.inc(oldVersion, 'patch');
-      } else if (flags.premajor) {
-        newVersion = semver.inc(oldVersion, 'premajor', identifier);
-      } else if (flags.preminor) {
-        newVersion = semver.inc(oldVersion, 'preminor', identifier);
-      } else if (flags.prepatch) {
-        newVersion = semver.inc(oldVersion, 'prepatch', identifier);
-      } else if (flags.prerelease) {
-        newVersion = semver.inc(oldVersion, 'prerelease', identifier);
-      }
-    }
-
-    // wasn't passed a version arg so ask interactively
-    while (!newVersion) {
-      // make sure we're not running in non-interactive mode before asking for new version
-      if (flags.nonInteractive || config.nonInteractive) {
-        // if no version is specified, use current version in package.json
-        newVersion = oldVersion;
-        break;
-      }
-
-      // Make sure we dont exit with an error message when pressing Ctrl-C or enter to abort
-      try {
-        newVersion = yield reporter.question(reporter.lang('newVersion'));
-        if (!newVersion) {
-          newVersion = oldVersion;
-        }
-      } catch (err) {
-        newVersion = oldVersion;
-      }
-
-      if (!required && !newVersion) {
-        reporter.info(`${reporter.lang('noVersionOnPublish')}: ${oldVersion}`);
-        return function () {
-          return Promise.resolve();
-        };
-      }
-
-      if (isValidNewVersion(oldVersion, newVersion, config.looseSemver, identifier)) {
-        break;
-      } else {
-        newVersion = null;
-        reporter.error(reporter.lang('invalidSemver'));
-      }
-    }
-    if (newVersion) {
-      newVersion = semver.inc(oldVersion, newVersion, config.looseSemver, identifier) || newVersion;
-    }
-    invariant(newVersion, 'expected new version');
-
-    if (newVersion === pkg.version) {
-      return function () {
-        return Promise.resolve();
-      };
-    }
-
-    yield runLifecycle('preversion');
-
-    // update version
-    reporter.info(`${reporter.lang('newVersion')}: ${newVersion}`);
-    pkg.version = newVersion;
-
-    // update versions in manifests
-    const manifests = yield config.getRootManifests();
-    for (var _iterator = (_index || _load_index()).registryNames, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const registryName = _ref2;
-
-      const manifest = manifests[registryName];
-      if (manifest.exists) {
-        manifest.object.version = newVersion;
-      }
-    }
-    yield config.saveRootManifests(manifests);
-
-    yield runLifecycle('version');
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      invariant(newVersion, 'expected version');
-
-      // check if a new git tag should be created
-      if (flags.gitTagVersion && config.getOption('version-git-tag')) {
-        // add git commit and tag
-        let isGit = false;
-        const parts = config.cwd.split(path.sep);
-        while (parts.length) {
-          isGit = yield (_fs || _load_fs()).exists(path.join(parts.join(path.sep), '.git'));
-          if (isGit) {
-            break;
-          } else {
-            parts.pop();
-          }
-        }
-
-        if (isGit) {
-          const message = (flags.message || String(config.getOption('version-git-message'))).replace(/%s/g, newVersion);
-          const sign = Boolean(config.getOption('version-sign-git-tag'));
-          const flag = sign ? '-sm' : '-am';
-          const prefix = String(config.getOption('version-tag-prefix'));
-          const args = ['commit', '-m', message, ...(isCommitHooksDisabled() ? ['-n'] : [])];
-
-          const gitRoot = (yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['rev-parse', '--show-toplevel'], { cwd: config.cwd })).trim();
-
-          // add manifest
-          yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['add', path.relative(gitRoot, pkgLoc)], { cwd: gitRoot });
-
-          // create git commit
-          yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(args, { cwd: gitRoot });
-
-          // create git tag
-          yield (0, (_gitSpawn || _load_gitSpawn()).spawn)(['tag', `${prefix}${newVersion}`, flag, message], { cwd: gitRoot });
-        }
-      }
-
-      yield runLifecycle('postversion');
-    });
-  });
-
-  return function setVersion(_x, _x2, _x3, _x4, _x5) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const commit = yield setVersion(config, reporter, flags, args, true);
-    yield commit();
-  });
-
-  return function run(_x6, _x7, _x8, _x9) {
-    return _ref4.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = __webpack_require__(111);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _gitSpawn;
-
-function _load_gitSpawn() {
-  return _gitSpawn = __webpack_require__(373);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-const semver = __webpack_require__(22);
-const path = __webpack_require__(0);
-
-const NEW_VERSION_FLAG = '--new-version [version]';
-function isValidNewVersion(oldVersion, newVersion, looseSemver, identifier) {
-  return !!(semver.valid(newVersion, looseSemver) || semver.inc(oldVersion, newVersion, looseSemver, identifier));
-}
-
-function setFlags(commander) {
-  commander.description('Update the version of your package via the command line.');
-  commander.option(NEW_VERSION_FLAG, 'new version');
-  commander.option('--major', 'auto-increment major version number');
-  commander.option('--minor', 'auto-increment minor version number');
-  commander.option('--patch', 'auto-increment patch version number');
-  commander.option('--premajor', 'auto-increment premajor version number');
-  commander.option('--preminor', 'auto-increment preminor version number');
-  commander.option('--prepatch', 'auto-increment prepatch version number');
-  commander.option('--prerelease', 'auto-increment prerelease version number');
-  commander.option('--preid [preid]', 'add a custom identifier to the prerelease');
-  commander.option('--message [message]', 'message');
-  commander.option('--no-git-tag-version', 'no git tag version');
-  commander.option('--no-commit-hooks', 'bypass git hooks when committing new version');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 364 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.LocalTarballFetcher = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _baseFetcher;
-
-function _load_baseFetcher() {
-  return _baseFetcher = _interopRequireDefault(__webpack_require__(167));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _normalizeUrl;
-
-function _load_normalizeUrl() {
-  return _normalizeUrl = _interopRequireDefault(__webpack_require__(402));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const crypto = __webpack_require__(11);
-const path = __webpack_require__(0);
-const tarFs = __webpack_require__(193);
-const url = __webpack_require__(24);
-const fs = __webpack_require__(5);
-const stream = __webpack_require__(23);
-const gunzip = __webpack_require__(656);
-const invariant = __webpack_require__(9);
-const ssri = __webpack_require__(65);
-
-const RE_URL_NAME_MATCH = /\/(?:(@[^/]+)(?:\/|%2f))?[^/]+\/(?:-|_attachments)\/(?:@[^/]+\/)?([^/]+)$/;
-
-const isHashAlgorithmSupported = name => {
-  const cachedResult = isHashAlgorithmSupported.__cache[name];
-  if (cachedResult != null) {
-    return cachedResult;
-  }
-  let supported = true;
-  try {
-    crypto.createHash(name);
-  } catch (error) {
-    if (error.message !== 'Digest method not supported') {
-      throw error;
-    }
-    supported = false;
-  }
-
-  isHashAlgorithmSupported.__cache[name] = supported;
-  return supported;
-};
-isHashAlgorithmSupported.__cache = {};
-
-class TarballFetcher extends (_baseFetcher || _load_baseFetcher()).default {
-  constructor(...args) {
-    var _temp;
-
-    return _temp = super(...args), this.validateError = null, this.validateIntegrity = null, _temp;
-  }
-
-  setupMirrorFromCache() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarballMirrorPath = _this.getTarballMirrorPath();
-      const tarballCachePath = _this.getTarballCachePath();
-
-      if (tarballMirrorPath == null) {
-        return;
-      }
-
-      if (!(yield (_fs || _load_fs()).exists(tarballMirrorPath)) && (yield (_fs || _load_fs()).exists(tarballCachePath))) {
-        // The tarball doesn't exists in the offline cache but does in the cache; we import it to the mirror
-        yield (_fs || _load_fs()).mkdirp(path.dirname(tarballMirrorPath));
-        yield (_fs || _load_fs()).copy(tarballCachePath, tarballMirrorPath, _this.reporter);
-      }
-    })();
-  }
-
-  getTarballCachePath() {
-    return path.join(this.dest, (_constants || _load_constants()).TARBALL_FILENAME);
-  }
-
-  getTarballMirrorPath() {
-    var _url$parse = url.parse(this.reference);
-
-    const pathname = _url$parse.pathname;
-
-
-    if (pathname == null) {
-      return null;
-    }
-
-    const match = pathname.match(RE_URL_NAME_MATCH);
-
-    let packageFilename;
-    if (match) {
-      const scope = match[1],
-            tarballBasename = match[2];
-
-      packageFilename = scope ? `${scope}-${tarballBasename}` : tarballBasename;
-    } else {
-      // fallback to base name
-      packageFilename = path.basename(pathname);
-    }
-
-    return this.config.getOfflineMirrorPath(packageFilename);
-  }
-
-  createExtractor(resolve, reject, tarballPath) {
-    const hashInfo = this._supportedIntegrity({ hashOnly: true });
-    const integrityInfo = this._supportedIntegrity({ hashOnly: false });
-
-    const now = new Date();
-
-    const fs = __webpack_require__(5);
-    const patchedFs = Object.assign({}, fs, {
-      utimes: (path, atime, mtime, cb) => {
-        fs.stat(path, (err, stat) => {
-          if (err) {
-            cb(err);
-            return;
-          }
-          if (stat.isDirectory()) {
-            fs.utimes(path, atime, mtime, cb);
-            return;
-          }
-          fs.open(path, 'a', (err, fd) => {
-            if (err) {
-              cb(err);
-              return;
-            }
-            fs.futimes(fd, atime, mtime, err => {
-              if (err) {
-                fs.close(fd, () => cb(err));
-              } else {
-                fs.close(fd, err => cb(err));
-              }
-            });
-          });
-        });
-      }
-    });
-
-    const hashValidateStream = new ssri.integrityStream(hashInfo);
-    const integrityValidateStream = new ssri.integrityStream(integrityInfo);
-
-    const untarStream = tarFs.extract(this.dest, {
-      strip: 1,
-      dmode: 0o755, // all dirs should be readable
-      fmode: 0o644, // all files should be readable
-      chown: false, // don't chown. just leave as it is
-      map: header => {
-        header.mtime = now;
-        return header;
-      },
-      fs: patchedFs
-    });
-    const extractorStream = gunzip();
-
-    hashValidateStream.once('error', err => {
-      this.validateError = err;
-    });
-    integrityValidateStream.once('error', err => {
-      this.validateError = err;
-    });
-    integrityValidateStream.once('integrity', sri => {
-      this.validateIntegrity = sri;
-    });
-
-    untarStream.on('error', err => {
-      reject(new (_errors || _load_errors()).MessageError(this.config.reporter.lang('errorExtractingTarball', err.message, tarballPath)));
-    });
-
-    extractorStream.pipe(untarStream).on('finish', () => {
-      const error = this.validateError;
-      const hexDigest = this.validateIntegrity ? this.validateIntegrity.hexDigest() : '';
-      if (this.config.updateChecksums && this.remote.integrity && this.validateIntegrity && this.remote.integrity !== this.validateIntegrity.toString()) {
-        this.remote.integrity = this.validateIntegrity.toString();
-      } else if (this.validateIntegrity) {
-        this.remote.cacheIntegrity = this.validateIntegrity.toString();
-      }
-
-      if (integrityInfo.integrity && Object.keys(integrityInfo.integrity).length === 0) {
-        return reject(new (_errors || _load_errors()).SecurityError(this.config.reporter.lang('fetchBadIntegrityAlgorithm', this.packageName, this.remote.reference)));
-      }
-
-      if (error) {
-        if (this.config.updateChecksums) {
-          this.remote.integrity = error.found.toString();
-        } else {
-          return reject(new (_errors || _load_errors()).SecurityError(this.config.reporter.lang('fetchBadHashWithPath', this.packageName, this.remote.reference, error.found.toString(), error.expected.toString())));
-        }
-      }
-
-      return resolve({
-        hash: this.hash || hexDigest
-      });
-    });
-
-    return { hashValidateStream, integrityValidateStream, extractorStream };
-  }
-
-  getLocalPaths(override) {
-    const paths = [override ? path.resolve(this.config.cwd, override) : null, this.getTarballMirrorPath(), this.getTarballCachePath()];
-    // $FlowFixMe: https://github.com/facebook/flow/issues/1414
-    return paths.filter(path => path != null);
-  }
-
-  fetchFromLocal(override) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarPaths = _this2.getLocalPaths(override);
-      const stream = yield (_fs || _load_fs()).readFirstAvailableStream(tarPaths);
-
-      return new Promise(function (resolve, reject) {
-        if (!stream) {
-          reject(new (_errors || _load_errors()).MessageError(_this2.reporter.lang('tarballNotInNetworkOrCache', _this2.reference, tarPaths)));
-          return;
-        }
-        invariant(stream, 'stream should be available at this point');
-        // $FlowFixMe - This is available https://nodejs.org/api/fs.html#fs_readstream_path
-        const tarballPath = stream.path;
-
-        var _createExtractor = _this2.createExtractor(resolve, reject, tarballPath);
-
-        const hashValidateStream = _createExtractor.hashValidateStream,
-              integrityValidateStream = _createExtractor.integrityValidateStream,
-              extractorStream = _createExtractor.extractorStream;
-
-
-        stream.pipe(hashValidateStream);
-        hashValidateStream.pipe(integrityValidateStream);
-
-        integrityValidateStream.pipe(extractorStream).on('error', function (err) {
-          reject(new (_errors || _load_errors()).MessageError(_this2.config.reporter.lang('fetchErrorCorrupt', err.message, tarballPath)));
-        });
-      });
-    })();
-  }
-
-  fetchFromExternal() {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const registry = _this3.config.registries[_this3.registry];
-
-      try {
-        const headers = _this3.requestHeaders();
-        return yield registry.request(_this3.reference, {
-          headers: (0, (_extends2 || _load_extends()).default)({
-            'Accept-Encoding': 'gzip'
-          }, headers),
-          buffer: true,
-          process: function process(req, resolve, reject) {
-            // should we save this to the offline cache?
-            const tarballMirrorPath = _this3.getTarballMirrorPath();
-            const tarballCachePath = _this3.getTarballCachePath();
-
-            var _createExtractor2 = _this3.createExtractor(resolve, reject);
-
-            const hashValidateStream = _createExtractor2.hashValidateStream,
-                  integrityValidateStream = _createExtractor2.integrityValidateStream,
-                  extractorStream = _createExtractor2.extractorStream;
-
-
-            req.pipe(hashValidateStream);
-            hashValidateStream.pipe(integrityValidateStream);
-
-            if (tarballMirrorPath) {
-              integrityValidateStream.pipe(fs.createWriteStream(tarballMirrorPath)).on('error', reject);
-            }
-
-            if (tarballCachePath) {
-              integrityValidateStream.pipe(fs.createWriteStream(tarballCachePath)).on('error', reject);
-            }
-
-            integrityValidateStream.pipe(extractorStream).on('error', reject);
-          }
-        }, _this3.packageName);
-      } catch (err) {
-        const tarballMirrorPath = _this3.getTarballMirrorPath();
-        const tarballCachePath = _this3.getTarballCachePath();
-
-        if (tarballMirrorPath && (yield (_fs || _load_fs()).exists(tarballMirrorPath))) {
-          yield (_fs || _load_fs()).unlink(tarballMirrorPath);
-        }
-
-        if (tarballCachePath && (yield (_fs || _load_fs()).exists(tarballCachePath))) {
-          yield (_fs || _load_fs()).unlink(tarballCachePath);
-        }
-
-        throw err;
-      }
-    })();
-  }
-
-  requestHeaders() {
-    const registry = this.config.registries.yarn;
-    const config = registry.config;
-    const requestParts = urlParts(this.reference);
-    return Object.keys(config).reduce((headers, option) => {
-      const parts = option.split(':');
-      if (parts.length === 3 && parts[1] === '_header') {
-        const registryParts = urlParts(parts[0]);
-        if (requestParts.host === registryParts.host && requestParts.path.startsWith(registryParts.path)) {
-          const headerName = parts[2];
-          const headerValue = config[option];
-          headers[headerName] = headerValue;
-        }
-      }
-      return headers;
-    }, {});
-  }
-
-  _fetch() {
-    const isFilePath = this.reference.startsWith('file:');
-    this.reference = (0, (_misc || _load_misc()).removePrefix)(this.reference, 'file:');
-    const urlParse = url.parse(this.reference);
-
-    // legacy support for local paths in yarn.lock entries
-    const isRelativePath = urlParse.protocol ? urlParse.protocol.match(/^[a-z]:$/i) : urlParse.pathname ? urlParse.pathname.match(/^(?:\.{1,2})?[\\\/]/) : false;
-
-    if (isFilePath || isRelativePath) {
-      return this.fetchFromLocal(this.reference);
-    }
-
-    return this.fetchFromLocal().catch(err => this.fetchFromExternal());
-  }
-
-  _findIntegrity({ hashOnly }) {
-    if (this.remote.integrity && !hashOnly) {
-      return ssri.parse(this.remote.integrity);
-    }
-    if (this.hash) {
-      return ssri.fromHex(this.hash, 'sha1');
-    }
-    return null;
-  }
-
-  _supportedIntegrity({ hashOnly }) {
-    const expectedIntegrity = this._findIntegrity({ hashOnly }) || {};
-    const expectedIntegrityAlgorithms = Object.keys(expectedIntegrity);
-    const shouldValidateIntegrity = (this.hash || this.remote.integrity) && !this.config.updateChecksums;
-
-    if (expectedIntegrityAlgorithms.length === 0 && (!shouldValidateIntegrity || hashOnly)) {
-      const algorithms = this.config.updateChecksums ? ['sha512'] : ['sha1'];
-      // for consistency, return sha1 for packages without a remote integrity (eg. github)
-      return { integrity: null, algorithms };
-    }
-
-    const algorithms = new Set(['sha512', 'sha1']);
-    const integrity = {};
-    for (var _iterator = expectedIntegrityAlgorithms, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const algorithm = _ref;
-
-      if (isHashAlgorithmSupported(algorithm)) {
-        algorithms.add(algorithm);
-        integrity[algorithm] = expectedIntegrity[algorithm];
-      }
-    }
-
-    return { integrity, algorithms: Array.from(algorithms) };
-  }
-}
-
-exports.default = TarballFetcher;
-class LocalTarballFetcher extends TarballFetcher {
-  _fetch() {
-    return this.fetchFromLocal(this.reference);
-  }
-}
-
-exports.LocalTarballFetcher = LocalTarballFetcher;
-
-
-function urlParts(requestUrl) {
-  const normalizedUrl = (0, (_normalizeUrl || _load_normalizeUrl()).default)(requestUrl);
-  const parsed = url.parse(normalizedUrl);
-  const host = parsed.host || '';
-  const path = parsed.path || '';
-  return { host, path };
-}
-
-/***/ }),
-/* 365 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-class PackageReference {
-  constructor(request, info, remote) {
-    this.resolver = request.resolver;
-    this.lockfile = request.lockfile;
-    this.requests = [];
-    this.config = request.config;
-    this.hint = request.hint;
-
-    this.isPlugnplay = false;
-
-    this.registry = remote.registry;
-    this.version = info.version;
-    this.name = info.name;
-    this.uid = info._uid;
-
-    this.remote = remote;
-
-    this.dependencies = [];
-
-    this.permissions = {};
-    this.patterns = [];
-    this.optional = null;
-    this.level = Infinity;
-    this.ignore = false;
-    this.incompatible = false;
-    this.fresh = false;
-    this.locations = [];
-    this.addRequest(request);
-  }
-
-  setFresh(fresh) {
-    this.fresh = fresh;
-  }
-
-  addLocation(loc) {
-    if (this.locations.indexOf(loc) === -1) {
-      this.locations.push(loc);
-    }
-  }
-
-  addRequest(request) {
-    this.requests.push(request);
-
-    this.level = Math.min(this.level, request.parentNames.length);
-  }
-
-  prune() {
-    for (var _iterator = this.patterns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const selfPattern = _ref;
-
-      // remove ourselves from the resolver
-      this.resolver.removePattern(selfPattern);
-    }
-  }
-
-  addDependencies(deps) {
-    this.dependencies = this.dependencies.concat(deps);
-  }
-
-  setPermission(key, val) {
-    this.permissions[key] = val;
-  }
-
-  hasPermission(key) {
-    if (key in this.permissions) {
-      return this.permissions[key];
-    } else {
-      return false;
-    }
-  }
-
-  addPattern(pattern, manifest) {
-    this.resolver.addPattern(pattern, manifest);
-
-    this.patterns.push(pattern);
-
-    const shrunk = this.lockfile.getLocked(pattern);
-    if (shrunk && shrunk.permissions) {
-      for (var _iterator2 = (0, (_misc || _load_misc()).entries)(shrunk.permissions), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const _ref2 = _ref3;
-        const key = _ref2[0];
-        const perm = _ref2[1];
-
-        this.setPermission(key, perm);
-      }
-    }
-  }
-
-  addOptional(optional) {
-    if (this.optional == null) {
-      // optional is uninitialised
-      this.optional = optional;
-    } else if (!optional) {
-      // otherwise, ignore all subsequent optional assignments and only accept ones making
-      // this not optional
-      this.optional = false;
-    }
-  }
-}
-exports.default = PackageReference;
-
-/***/ }),
-/* 366 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _packageRequest;
-
-function _load_packageRequest() {
-  return _packageRequest = _interopRequireDefault(__webpack_require__(122));
-}
-
-var _normalizePattern2;
-
-function _load_normalizePattern() {
-  return _normalizePattern2 = __webpack_require__(37);
-}
-
-var _requestManager;
-
-function _load_requestManager() {
-  return _requestManager = _interopRequireDefault(__webpack_require__(378));
-}
-
-var _blockingQueue;
-
-function _load_blockingQueue() {
-  return _blockingQueue = _interopRequireDefault(__webpack_require__(110));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-var _resolutionMap;
-
-function _load_resolutionMap() {
-  return _resolutionMap = _interopRequireDefault(__webpack_require__(214));
-}
-
-var _resolutionMap2;
-
-function _load_resolutionMap2() {
-  return _resolutionMap2 = __webpack_require__(214);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const semver = __webpack_require__(22);
-
-class PackageResolver {
-  constructor(config, lockfile, resolutionMap = new (_resolutionMap || _load_resolutionMap()).default(config)) {
-    this.patternsByPackage = (0, (_map || _load_map()).default)();
-    this.fetchingPatterns = new Set();
-    this.fetchingQueue = new (_blockingQueue || _load_blockingQueue()).default('resolver fetching');
-    this.patterns = (0, (_map || _load_map()).default)();
-    this.resolutionMap = resolutionMap;
-    this.usedRegistries = new Set();
-    this.flat = false;
-
-    this.reporter = config.reporter;
-    this.lockfile = lockfile;
-    this.config = config;
-    this.delayedResolveQueue = [];
-  }
-
-  // whether the dependency graph will be flattened
-
-
-  // list of registries that have been used in this resolution
-
-
-  // activity monitor
-
-
-  // patterns we've already resolved or are in the process of resolving
-
-
-  // TODO
-
-
-  // manages and throttles json api http requests
-
-
-  // list of patterns associated with a package
-
-
-  // lockfile instance which we can use to retrieve version info
-
-
-  // a map of dependency patterns to packages
-
-
-  // reporter instance, abstracts out display logic
-
-
-  // environment specific config methods and options
-
-
-  // list of packages need to be resolved later (they found a matching version in the
-  // resolver, but better matches can still arrive later in the resolve process)
-
-
-  /**
-   * TODO description
-   */
-
-  isNewPattern(pattern) {
-    return !!this.patterns[pattern].fresh;
-  }
-
-  updateManifest(ref, newPkg) {
-    // inherit fields
-    const oldPkg = this.patterns[ref.patterns[0]];
-    newPkg._reference = ref;
-    newPkg._remote = ref.remote;
-    newPkg.name = oldPkg.name;
-    newPkg.fresh = oldPkg.fresh;
-    newPkg.prebuilt2Variants = oldPkg.prebuilt2Variants;
-
-    // update patterns
-    for (var _iterator = ref.patterns, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const pattern = _ref;
-
-      this.patterns[pattern] = newPkg;
-    }
-
-    return Promise.resolve();
-  }
-
-  updateManifests(newPkgs) {
-    for (var _iterator2 = newPkgs, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref2 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref2 = _i2.value;
-      }
-
-      const newPkg = _ref2;
-
-      if (newPkg._reference) {
-        for (var _iterator3 = newPkg._reference.patterns, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref3;
-
-          if (_isArray3) {
-            if (_i3 >= _iterator3.length) break;
-            _ref3 = _iterator3[_i3++];
-          } else {
-            _i3 = _iterator3.next();
-            if (_i3.done) break;
-            _ref3 = _i3.value;
-          }
-
-          const pattern = _ref3;
-
-          const oldPkg = this.patterns[pattern];
-          newPkg.prebuilt2Variants = oldPkg.prebuilt2Variants;
-
-          this.patterns[pattern] = newPkg;
-        }
-      }
-    }
-
-    return Promise.resolve();
-  }
-
-  /**
-   * Given a list of patterns, dedupe them to a list of unique patterns.
-   */
-
-  dedupePatterns(patterns) {
-    const deduped = [];
-    const seen = new Set();
-
-    for (var _iterator4 = patterns, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref4 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref4 = _i4.value;
-      }
-
-      const pattern = _ref4;
-
-      const info = this.getResolvedPattern(pattern);
-      if (seen.has(info)) {
-        continue;
-      }
-
-      seen.add(info);
-      deduped.push(pattern);
-    }
-
-    return deduped;
-  }
-
-  /**
-   * Get a list of all manifests by topological order.
-   */
-
-  getTopologicalManifests(seedPatterns) {
-    const pkgs = new Set();
-    const skip = new Set();
-
-    const add = seedPatterns => {
-      for (var _iterator5 = seedPatterns, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref5;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref5 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref5 = _i5.value;
-        }
-
-        const pattern = _ref5;
-
-        const pkg = this.getStrictResolvedPattern(pattern);
-        if (skip.has(pkg)) {
-          continue;
-        }
-
-        const ref = pkg._reference;
-        invariant(ref, 'expected reference');
-        skip.add(pkg);
-        add(ref.dependencies);
-        pkgs.add(pkg);
-      }
-    };
-
-    add(seedPatterns);
-
-    return pkgs;
-  }
-
-  /**
-   * Get a list of all manifests by level sort order.
-   */
-
-  getLevelOrderManifests(seedPatterns) {
-    const pkgs = new Set();
-    const skip = new Set();
-
-    const add = seedPatterns => {
-      const refs = [];
-
-      for (var _iterator6 = seedPatterns, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray6) {
-          if (_i6 >= _iterator6.length) break;
-          _ref6 = _iterator6[_i6++];
-        } else {
-          _i6 = _iterator6.next();
-          if (_i6.done) break;
-          _ref6 = _i6.value;
-        }
-
-        const pattern = _ref6;
-
-        const pkg = this.getStrictResolvedPattern(pattern);
-        if (skip.has(pkg)) {
-          continue;
-        }
-
-        const ref = pkg._reference;
-        invariant(ref, 'expected reference');
-
-        refs.push(ref);
-        skip.add(pkg);
-        pkgs.add(pkg);
-      }
-
-      for (var _iterator7 = refs, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray7) {
-          if (_i7 >= _iterator7.length) break;
-          _ref7 = _iterator7[_i7++];
-        } else {
-          _i7 = _iterator7.next();
-          if (_i7.done) break;
-          _ref7 = _i7.value;
-        }
-
-        const ref = _ref7;
-
-        add(ref.dependencies);
-      }
-    };
-
-    add(seedPatterns);
-
-    return pkgs;
-  }
-
-  /**
-   * Get a list of all package names in the dependency graph.
-   */
-
-  getAllDependencyNamesByLevelOrder(seedPatterns) {
-    const names = new Set();
-    for (var _iterator8 = this.getLevelOrderManifests(seedPatterns), _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-      var _ref9;
-
-      if (_isArray8) {
-        if (_i8 >= _iterator8.length) break;
-        _ref9 = _iterator8[_i8++];
-      } else {
-        _i8 = _iterator8.next();
-        if (_i8.done) break;
-        _ref9 = _i8.value;
-      }
-
-      const _ref8 = _ref9;
-      const name = _ref8.name;
-
-      names.add(name);
-    }
-    return names;
-  }
-
-  /**
-   * Retrieve all the package info stored for this package name.
-   */
-
-  getAllInfoForPackageName(name) {
-    const patterns = this.patternsByPackage[name] || [];
-    return this.getAllInfoForPatterns(patterns);
-  }
-
-  /**
-   * Retrieve all the package info stored for a list of patterns.
-   */
-
-  getAllInfoForPatterns(patterns) {
-    const infos = [];
-    const seen = new Set();
-
-    for (var _iterator9 = patterns, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-      var _ref10;
-
-      if (_isArray9) {
-        if (_i9 >= _iterator9.length) break;
-        _ref10 = _iterator9[_i9++];
-      } else {
-        _i9 = _iterator9.next();
-        if (_i9.done) break;
-        _ref10 = _i9.value;
-      }
-
-      const pattern = _ref10;
-
-      const info = this.patterns[pattern];
-      if (seen.has(info)) {
-        continue;
-      }
-
-      seen.add(info);
-      infos.push(info);
-    }
-
-    return infos;
-  }
-
-  /**
-   * Get a flat list of all package info.
-   */
-
-  getManifests() {
-    const infos = [];
-    const seen = new Set();
-
-    for (const pattern in this.patterns) {
-      const info = this.patterns[pattern];
-      if (seen.has(info)) {
-        continue;
-      }
-
-      infos.push(info);
-      seen.add(info);
-    }
-
-    return infos;
-  }
-
-  /**
-   * replace pattern in resolver, e.g. `name` is replaced with `name@^1.0.1`
-   */
-  replacePattern(pattern, newPattern) {
-    const pkg = this.getResolvedPattern(pattern);
-    invariant(pkg, `missing package ${pattern}`);
-    const ref = pkg._reference;
-    invariant(ref, 'expected package reference');
-    ref.patterns = [newPattern];
-    this.addPattern(newPattern, pkg);
-    this.removePattern(pattern);
-  }
-
-  /**
-   * Make all versions of this package resolve to it.
-   */
-
-  collapseAllVersionsOfPackage(name, version) {
-    const patterns = this.dedupePatterns(this.patternsByPackage[name]);
-    return this.collapsePackageVersions(name, version, patterns);
-  }
-
-  /**
-   * Make all given patterns resolve to version.
-   */
-  collapsePackageVersions(name, version, patterns) {
-    const human = `${name}@${version}`;
-
-    // get manifest that matches the version we're collapsing too
-    let collapseToReference;
-    let collapseToManifest;
-    let collapseToPattern;
-    for (var _iterator10 = patterns, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray10) {
-        if (_i10 >= _iterator10.length) break;
-        _ref11 = _iterator10[_i10++];
-      } else {
-        _i10 = _iterator10.next();
-        if (_i10.done) break;
-        _ref11 = _i10.value;
-      }
-
-      const pattern = _ref11;
-
-      const _manifest = this.patterns[pattern];
-      if (_manifest.version === version) {
-        collapseToReference = _manifest._reference;
-        collapseToManifest = _manifest;
-        collapseToPattern = pattern;
-        break;
-      }
-    }
-
-    invariant(collapseToReference && collapseToManifest && collapseToPattern, `Couldn't find package manifest for ${human}`);
-
-    for (var _iterator11 = patterns, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-      var _ref12;
-
-      if (_isArray11) {
-        if (_i11 >= _iterator11.length) break;
-        _ref12 = _iterator11[_i11++];
-      } else {
-        _i11 = _iterator11.next();
-        if (_i11.done) break;
-        _ref12 = _i11.value;
-      }
-
-      const pattern = _ref12;
-
-      // don't touch the pattern we're collapsing to
-      if (pattern === collapseToPattern) {
-        continue;
-      }
-
-      // remove this pattern
-      const ref = this.getStrictResolvedPattern(pattern)._reference;
-      invariant(ref, 'expected package reference');
-      const refPatterns = ref.patterns.slice();
-      ref.prune();
-
-      // add pattern to the manifest we're collapsing to
-      for (var _iterator12 = refPatterns, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-        var _ref13;
-
-        if (_isArray12) {
-          if (_i12 >= _iterator12.length) break;
-          _ref13 = _iterator12[_i12++];
-        } else {
-          _i12 = _iterator12.next();
-          if (_i12.done) break;
-          _ref13 = _i12.value;
-        }
-
-        const pattern = _ref13;
-
-        collapseToReference.addPattern(pattern, collapseToManifest);
-      }
-    }
-
-    return collapseToPattern;
-  }
-
-  /**
-   * TODO description
-   */
-
-  addPattern(pattern, info) {
-    this.patterns[pattern] = info;
-
-    const byName = this.patternsByPackage[info.name] = this.patternsByPackage[info.name] || [];
-    if (byName.indexOf(pattern) === -1) {
-      byName.push(pattern);
-    }
-  }
-
-  /**
-   * TODO description
-   */
-
-  removePattern(pattern) {
-    const pkg = this.patterns[pattern];
-    if (!pkg) {
-      return;
-    }
-
-    const byName = this.patternsByPackage[pkg.name];
-    if (!byName) {
-      return;
-    }
-
-    byName.splice(byName.indexOf(pattern), 1);
-    delete this.patterns[pattern];
-  }
-
-  /**
-   * TODO description
-   */
-
-  getResolvedPattern(pattern) {
-    return this.patterns[pattern];
-  }
-
-  /**
-   * TODO description
-   */
-
-  getStrictResolvedPattern(pattern) {
-    const manifest = this.getResolvedPattern(pattern);
-    invariant(manifest, 'expected manifest');
-    return manifest;
-  }
-
-  /**
-   * TODO description
-   */
-
-  getExactVersionMatch(name, version, manifest) {
-    const patterns = this.patternsByPackage[name];
-    if (!patterns) {
-      return null;
-    }
-
-    for (var _iterator13 = patterns, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : _iterator13[Symbol.iterator]();;) {
-      var _ref14;
-
-      if (_isArray13) {
-        if (_i13 >= _iterator13.length) break;
-        _ref14 = _iterator13[_i13++];
-      } else {
-        _i13 = _iterator13.next();
-        if (_i13.done) break;
-        _ref14 = _i13.value;
-      }
-
-      const pattern = _ref14;
-
-      const info = this.getStrictResolvedPattern(pattern);
-      if (info.version === version) {
-        return info;
-      }
-    }
-
-    if (manifest && (0, (_index || _load_index()).getExoticResolver)(version)) {
-      return this.exoticRangeMatch(patterns.map(this.getStrictResolvedPattern.bind(this)), manifest);
-    }
-
-    return null;
-  }
-
-  /**
-   * Get the manifest of the highest known version that satisfies a package range
-   */
-
-  getHighestRangeVersionMatch(name, range, manifest) {
-    const patterns = this.patternsByPackage[name];
-
-    if (!patterns) {
-      return null;
-    }
-
-    const versionNumbers = [];
-    const resolvedPatterns = patterns.map(pattern => {
-      const info = this.getStrictResolvedPattern(pattern);
-      versionNumbers.push(info.version);
-
-      return info;
-    });
-
-    const maxValidRange = semver.maxSatisfying(versionNumbers, range);
-
-    if (!maxValidRange) {
-      return manifest && (0, (_index || _load_index()).getExoticResolver)(range) ? this.exoticRangeMatch(resolvedPatterns, manifest) : null;
-    }
-
-    const indexOfmaxValidRange = versionNumbers.indexOf(maxValidRange);
-    const maxValidRangeManifest = resolvedPatterns[indexOfmaxValidRange];
-
-    return maxValidRangeManifest;
-  }
-
-  /**
-   * Get the manifest of the package that matches an exotic range
-   */
-
-  exoticRangeMatch(resolvedPkgs, manifest) {
-    const remote = manifest._remote;
-    if (!(remote && remote.reference && remote.type === 'copy')) {
-      return null;
-    }
-
-    const matchedPkg = resolvedPkgs.find(({ _remote: pkgRemote }) => pkgRemote && pkgRemote.reference === remote.reference && pkgRemote.type === 'copy');
-
-    if (matchedPkg) {
-      manifest._remote = matchedPkg._remote;
-    }
-
-    return matchedPkg;
-  }
-
-  /**
-   * Determine if LockfileEntry is incorrect, remove it from lockfile cache and consider the pattern as new
-   */
-  isLockfileEntryOutdated(version, range, hasVersion) {
-    return !!(semver.validRange(range) && semver.valid(version) && !(0, (_index || _load_index()).getExoticResolver)(range) && hasVersion && !semver.satisfies(version, range));
-  }
-
-  /**
-   * TODO description
-   */
-
-  find(initialReq) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const req = _this.resolveToResolution(initialReq);
-
-      // we've already resolved it with a resolution
-      if (!req) {
-        return;
-      }
-
-      const request = new (_packageRequest || _load_packageRequest()).default(req, _this);
-      const fetchKey = `${req.registry}:${req.pattern}:${String(req.optional)}`;
-      const initialFetch = !_this.fetchingPatterns.has(fetchKey);
-      let fresh = false;
-
-      if (_this.activity) {
-        _this.activity.tick(req.pattern);
-      }
-
-      if (initialFetch) {
-        _this.fetchingPatterns.add(fetchKey);
-
-        const lockfileEntry = _this.lockfile.getLocked(req.pattern);
-
-        if (lockfileEntry) {
-          var _normalizePattern = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(req.pattern);
-
-          const range = _normalizePattern.range,
-                hasVersion = _normalizePattern.hasVersion;
-
-
-          if (_this.isLockfileEntryOutdated(lockfileEntry.version, range, hasVersion)) {
-            _this.reporter.warn(_this.reporter.lang('incorrectLockfileEntry', req.pattern));
-            _this.removePattern(req.pattern);
-            _this.lockfile.removePattern(req.pattern);
-            fresh = true;
-          }
-        } else {
-          fresh = true;
-        }
-
-        request.init();
-      }
-
-      yield request.find({ fresh, frozen: _this.frozen });
-    })();
-  }
-
-  /**
-   * TODO description
-   */
-
-  init(deps, { isFlat, isFrozen, workspaceLayout } = {
-    isFlat: false,
-    isFrozen: false,
-    workspaceLayout: undefined
-  }) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this2.flat = Boolean(isFlat);
-      _this2.frozen = Boolean(isFrozen);
-      _this2.workspaceLayout = workspaceLayout;
-      const activity = _this2.activity = _this2.reporter.activity();
-
-      for (var _iterator14 = deps, _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : _iterator14[Symbol.iterator]();;) {
-        var _ref15;
-
-        if (_isArray14) {
-          if (_i14 >= _iterator14.length) break;
-          _ref15 = _iterator14[_i14++];
-        } else {
-          _i14 = _iterator14.next();
-          if (_i14.done) break;
-          _ref15 = _i14.value;
-        }
-
-        const req = _ref15;
-
-        yield _this2.find(req);
-      }
-
-      // all required package versions have been discovered, so now packages that
-      // resolved to existing versions can be resolved to their best available version
-      _this2.resolvePackagesWithExistingVersions();
-
-      for (var _iterator15 = _this2.resolutionMap.delayQueue, _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : _iterator15[Symbol.iterator]();;) {
-        var _ref16;
-
-        if (_isArray15) {
-          if (_i15 >= _iterator15.length) break;
-          _ref16 = _iterator15[_i15++];
-        } else {
-          _i15 = _iterator15.next();
-          if (_i15.done) break;
-          _ref16 = _i15.value;
-        }
-
-        const req = _ref16;
-
-        _this2.resolveToResolution(req);
-      }
-
-      if (isFlat) {
-        for (var _iterator16 = deps, _isArray16 = Array.isArray(_iterator16), _i16 = 0, _iterator16 = _isArray16 ? _iterator16 : _iterator16[Symbol.iterator]();;) {
-          var _ref17;
-
-          if (_isArray16) {
-            if (_i16 >= _iterator16.length) break;
-            _ref17 = _iterator16[_i16++];
-          } else {
-            _i16 = _iterator16.next();
-            if (_i16.done) break;
-            _ref17 = _i16.value;
-          }
-
-          const dep = _ref17;
-
-          const name = (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(dep.pattern).name;
-          _this2.optimizeResolutions(name);
-        }
-      }
-
-      activity.end();
-      _this2.activity = null;
-    })();
-  }
-
-  // for a given package, see if a single manifest can satisfy all ranges
-  optimizeResolutions(name) {
-    const patterns = this.dedupePatterns(this.patternsByPackage[name] || []);
-
-    // don't optimize things that already have a lockfile entry:
-    // https://github.com/yarnpkg/yarn/issues/79
-    const collapsablePatterns = patterns.filter(pattern => {
-      const remote = this.patterns[pattern]._remote;
-      return !this.lockfile.getLocked(pattern) && (!remote || remote.type !== 'workspace');
-    });
-    if (collapsablePatterns.length < 2) {
-      return;
-    }
-
-    // reverse sort, so we'll find the maximum satisfying version first
-    const availableVersions = this.getAllInfoForPatterns(collapsablePatterns).map(manifest => manifest.version);
-    availableVersions.sort(semver.rcompare);
-
-    const ranges = collapsablePatterns.map(pattern => (0, (_normalizePattern2 || _load_normalizePattern()).normalizePattern)(pattern).range);
-
-    // find the most recent version that satisfies all patterns (if one exists), and
-    // collapse to that version.
-    for (var _iterator17 = availableVersions, _isArray17 = Array.isArray(_iterator17), _i17 = 0, _iterator17 = _isArray17 ? _iterator17 : _iterator17[Symbol.iterator]();;) {
-      var _ref18;
-
-      if (_isArray17) {
-        if (_i17 >= _iterator17.length) break;
-        _ref18 = _iterator17[_i17++];
-      } else {
-        _i17 = _iterator17.next();
-        if (_i17.done) break;
-        _ref18 = _i17.value;
-      }
-
-      const version = _ref18;
-
-      if (ranges.every(range => semver.satisfies(version, range))) {
-        this.collapsePackageVersions(name, version, collapsablePatterns);
-        return;
-      }
-    }
-  }
-
-  /**
-    * Called by the package requester for packages that this resolver already had
-    * a matching version for. Delay the resolve, because better matches can still be
-    * discovered.
-    */
-
-  reportPackageWithExistingVersion(req, info) {
-    this.delayedResolveQueue.push({ req, info });
-  }
-
-  /**
-    * Executes the resolve to existing versions for packages after the find process,
-    * when all versions that are going to be used have been discovered.
-    */
-
-  resolvePackagesWithExistingVersions() {
-    for (var _iterator18 = this.delayedResolveQueue, _isArray18 = Array.isArray(_iterator18), _i18 = 0, _iterator18 = _isArray18 ? _iterator18 : _iterator18[Symbol.iterator]();;) {
-      var _ref20;
-
-      if (_isArray18) {
-        if (_i18 >= _iterator18.length) break;
-        _ref20 = _iterator18[_i18++];
-      } else {
-        _i18 = _iterator18.next();
-        if (_i18.done) break;
-        _ref20 = _i18.value;
-      }
-
-      const _ref19 = _ref20;
-      const req = _ref19.req,
-            info = _ref19.info;
-
-      req.resolveToExistingVersion(info);
-    }
-  }
-
-  resolveToResolution(req) {
-    const parentNames = req.parentNames,
-          pattern = req.pattern;
-
-
-    if (!parentNames || this.flat) {
-      return req;
-    }
-
-    const resolution = this.resolutionMap.find(pattern, parentNames);
-
-    if (resolution) {
-      const resolutionManifest = this.getResolvedPattern(resolution);
-
-      if (resolutionManifest) {
-        invariant(resolutionManifest._reference, 'resolutions should have a resolved reference');
-        resolutionManifest._reference.patterns.push(pattern);
-        this.addPattern(pattern, resolutionManifest);
-        const lockManifest = this.lockfile.getLocked(pattern);
-        if ((0, (_resolutionMap2 || _load_resolutionMap2()).shouldUpdateLockfile)(lockManifest, resolutionManifest._reference)) {
-          this.lockfile.removePattern(pattern);
-        }
-      } else {
-        this.resolutionMap.addToDelayQueue(req);
-      }
-      return null;
-    }
-
-    return req;
-  }
-}
-exports.default = PackageResolver;
-
-/***/ }),
-/* 367 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _hostedGitResolver;
-
-function _load_hostedGitResolver() {
-  return _hostedGitResolver = _interopRequireDefault(__webpack_require__(109));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class GitHubResolver extends (_hostedGitResolver || _load_hostedGitResolver()).default {
-
-  static isVersion(pattern) {
-    // github proto
-    if (pattern.startsWith('github:')) {
-      return true;
-    }
-
-    // github shorthand
-    if (/^[^:@%/\s.-][^:@%/\s]*[/][^:@\s/%]+(?:#.*)?$/.test(pattern)) {
-      return true;
-    }
-
-    return false;
-  }
-
-  static getTarballUrl(parts, hash) {
-    return `https://codeload.${this.hostname}/${parts.user}/${parts.repo}/tar.gz/${hash}`;
-  }
-
-  static getGitSSHUrl(parts) {
-    return `git+ssh://git@${this.hostname}/${parts.user}/${parts.repo}.git` + `${parts.hash ? '#' + decodeURIComponent(parts.hash) : ''}`;
-  }
-
-  static getGitHTTPBaseUrl(parts) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}`;
-  }
-
-  static getGitHTTPUrl(parts) {
-    return `${GitHubResolver.getGitHTTPBaseUrl(parts)}.git`;
-  }
-
-  static getHTTPFileUrl(parts, filename, commit) {
-    return `https://raw.githubusercontent.com/${parts.user}/${parts.repo}/${commit}/${filename}`;
-  }
-}
-exports.default = GitHubResolver;
-GitHubResolver.protocol = 'github';
-GitHubResolver.hostname = 'github.com';
-
-/***/ }),
-/* 368 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.LINK_PROTOCOL_PREFIX = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = _interopRequireWildcard(__webpack_require__(18));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-const LINK_PROTOCOL_PREFIX = exports.LINK_PROTOCOL_PREFIX = 'link:';
-
-class LinkResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-    this.loc = (_misc || _load_misc()).removePrefix(fragment, LINK_PROTOCOL_PREFIX);
-  }
-
-  resolve() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let loc = _this.loc;
-      if (!path.isAbsolute(loc)) {
-        loc = path.resolve(_this.config.lockfileFolder, loc);
-      }
-
-      const name = path.basename(loc);
-      const registry = 'npm';
-
-      const manifest = !(yield (_fs || _load_fs()).exists(`${loc}/package.json`)) || loc === _this.config.lockfileFolder ? { _uid: '', name, version: '0.0.0', _registry: registry } : yield _this.config.readManifest(loc, _this.registry);
-
-      manifest._remote = {
-        type: 'link',
-        registry,
-        hash: null,
-        reference: loc
-      };
-
-      manifest._uid = manifest.version;
-
-      return manifest;
-    })();
-  }
-}
-exports.default = LinkResolver;
-LinkResolver.protocol = 'link';
-
-/***/ }),
-/* 369 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-exports.default = function (from, to) {
-  const validFrom = (_semver || _load_semver()).default.valid(from);
-  const validTo = (_semver || _load_semver()).default.valid(to);
-  let versionBump = 'unknown';
-  if (validFrom && validTo) {
-    versionBump = (0, (_semver2 || _load_semver2()).diffWithUnstable)(validFrom, validTo) || 'unchanged';
-  }
-  return (_constants || _load_constants()).VERSION_COLOR_SCHEME[versionBump];
-};
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-var _semver2;
-
-function _load_semver2() {
-  return _semver2 = __webpack_require__(224);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/***/ }),
-/* 370 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-exports.default = function (from, to, reporter) {
-  const parts = to.split('.');
-  const fromParts = from.split('.');
-
-  const splitIndex = parts.findIndex((part, i) => part !== fromParts[i]);
-  if (splitIndex === -1) {
-    return from;
-  }
-
-  const colorized = reporter.format.green(parts.slice(splitIndex).join('.'));
-  return parts.slice(0, splitIndex).concat(colorized).join('.');
-};
-
-/***/ }),
-/* 371 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// $FlowFixMe We want this require to be dynamic
-exports.dynamicRequire =  true ? require : require; // eslint-disable-line
-
-/***/ }),
-/* 372 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.sortFilter = sortFilter;
-exports.matchesFilter = matchesFilter;
-exports.ignoreLinesToRegex = ignoreLinesToRegex;
-exports.filterOverridenGitignores = filterOverridenGitignores;
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-const mm = __webpack_require__(114);
-const path = __webpack_require__(0);
-
-const WHITESPACE_RE = /^\s+$/;
-
-function sortFilter(files, filters, keepFiles = new Set(), possibleKeepFiles = new Set(), ignoreFiles = new Set()) {
-  for (var _iterator = files, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const file = _ref;
-
-    let keep = false;
-
-    // always keep a file if a ! pattern matches it
-    for (var _iterator5 = filters, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray5) {
-        if (_i5 >= _iterator5.length) break;
-        _ref5 = _iterator5[_i5++];
-      } else {
-        _i5 = _iterator5.next();
-        if (_i5.done) break;
-        _ref5 = _i5.value;
-      }
-
-      const filter = _ref5;
-
-      if (filter.isNegation && matchesFilter(filter, file.basename, file.relative)) {
-        keep = true;
-        break;
-      }
-    }
-
-    //
-    if (keep) {
-      keepFiles.add(file.relative);
-      continue;
-    }
-
-    // otherwise don't keep it if a pattern matches it
-    keep = true;
-    for (var _iterator6 = filters, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-      var _ref6;
-
-      if (_isArray6) {
-        if (_i6 >= _iterator6.length) break;
-        _ref6 = _iterator6[_i6++];
-      } else {
-        _i6 = _iterator6.next();
-        if (_i6.done) break;
-        _ref6 = _i6.value;
-      }
-
-      const filter = _ref6;
-
-      if (!filter.isNegation && matchesFilter(filter, file.basename, file.relative)) {
-        keep = false;
-        break;
-      }
-    }
-
-    if (keep) {
-      possibleKeepFiles.add(file.relative);
-    } else {
-      ignoreFiles.add(file.relative);
-    }
-  }
-
-  // exclude file
-  for (var _iterator2 = possibleKeepFiles, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref2 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref2 = _i2.value;
-    }
-
-    const file = _ref2;
-
-    const parts = path.dirname(file).split(path.sep);
-
-    while (parts.length) {
-      const folder = parts.join(path.sep);
-      if (ignoreFiles.has(folder)) {
-        ignoreFiles.add(file);
-        break;
-      }
-      parts.pop();
-    }
-  }
-
-  //
-  for (var _iterator3 = possibleKeepFiles, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-    var _ref3;
-
-    if (_isArray3) {
-      if (_i3 >= _iterator3.length) break;
-      _ref3 = _iterator3[_i3++];
-    } else {
-      _i3 = _iterator3.next();
-      if (_i3.done) break;
-      _ref3 = _i3.value;
-    }
-
-    const file = _ref3;
-
-    if (!ignoreFiles.has(file)) {
-      keepFiles.add(file);
-    }
-  }
-
-  //
-  for (var _iterator4 = keepFiles, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-    var _ref4;
-
-    if (_isArray4) {
-      if (_i4 >= _iterator4.length) break;
-      _ref4 = _iterator4[_i4++];
-    } else {
-      _i4 = _iterator4.next();
-      if (_i4.done) break;
-      _ref4 = _i4.value;
-    }
-
-    const file = _ref4;
-
-    const parts = path.dirname(file).split(path.sep);
-
-    while (parts.length) {
-      // deregister this folder from being ignored, any files inside
-      // will still be marked as ignored
-      ignoreFiles.delete(parts.join(path.sep));
-      parts.pop();
-    }
-  }
-
-  return { ignoreFiles, keepFiles };
-}
-
-function matchesFilter(filter, basename, loc) {
-  let filterByBasename = true;
-  if (filter.base && filter.base !== '.') {
-    loc = path.relative(filter.base, loc);
-    filterByBasename = false;
-  }
-  // the micromatch regex expects unix path separators
-  loc = loc.replace(/\\/g, '/');
-
-  return filter.regex.test(loc) || filter.regex.test(`/${loc}`) || filterByBasename && filter.regex.test(basename) || mm.isMatch(loc, filter.pattern);
-}
-
-function ignoreLinesToRegex(lines, base = '.') {
-  return lines
-  // create regex
-  .map(line => {
-    // remove empty lines, comments, etc
-    if (line === '' || line === '!' || line[0] === '#' || WHITESPACE_RE.test(line)) {
-      return null;
-    }
-
-    let pattern = line;
-    let isNegation = false;
-
-    // hide the fact that it's a negation from minimatch since we'll handle this specifically
-    // ourselves
-    if (pattern[0] === '!') {
-      isNegation = true;
-      pattern = pattern.slice(1);
-    }
-
-    // remove trailing slash
-    pattern = (0, (_misc || _load_misc()).removeSuffix)(pattern, '/');
-
-    const regex = mm.makeRe(pattern.trim(), { dot: true, nocase: true });
-
-    if (regex) {
-      return {
-        base,
-        isNegation,
-        pattern,
-        regex
-      };
-    } else {
-      return null;
-    }
-  }).filter(Boolean);
-}
-
-function filterOverridenGitignores(files) {
-  const IGNORE_FILENAMES = ['.yarnignore', '.npmignore', '.gitignore'];
-  const GITIGNORE_NAME = IGNORE_FILENAMES[2];
-  return files.filter(file => IGNORE_FILENAMES.indexOf(file.basename) > -1).reduce((acc, file) => {
-    if (file.basename !== GITIGNORE_NAME) {
-      return [...acc, file];
-    } else {
-      //don't include .gitignore if .npmignore or .yarnignore are present
-      const dir = path.dirname(file.absolute);
-      const higherPriorityIgnoreFilePaths = [path.join(dir, IGNORE_FILENAMES[0]), path.join(dir, IGNORE_FILENAMES[1])];
-      const hasHigherPriorityFiles = files.find(file => higherPriorityIgnoreFilePaths.indexOf(path.normalize(file.absolute)) > -1);
-      if (!hasHigherPriorityFiles) {
-        return [...acc, file];
-      }
-    }
-    return acc;
-  }, []);
-}
-
-/***/ }),
-/* 373 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.spawn = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const BATCH_MODE_ARGS = new Map([['ssh', '-oBatchMode=yes'], ['plink', '-batch']]);
-
-// Suppress any password prompts since we run these in the background
-const env = (0, (_extends2 || _load_extends()).default)({
-  GIT_ASKPASS: '',
-  GIT_TERMINAL_PROMPT: 0
-}, process.env);
-
-const sshCommand = env.GIT_SSH || 'ssh';
-const sshExecutable = (_path || _load_path()).default.basename(sshCommand.toLowerCase(), '.exe');
-const sshBatchArgs = BATCH_MODE_ARGS.get(sshExecutable);
-
-if (!env.GIT_SSH_COMMAND && sshBatchArgs) {
-  // We have to manually specify `GIT_SSH_VARIANT`,
-  // because it's not automatically set when using `GIT_SSH_COMMAND` instead of `GIT_SSH`
-  // See: https://github.com/yarnpkg/yarn/issues/4729
-  env.GIT_SSH_VARIANT = sshExecutable;
-  env.GIT_SSH_COMMAND = `"${sshCommand}" ${sshBatchArgs}`;
-}
-
-const spawn = exports.spawn = (args, opts = {}) => {
-  return (_child || _load_child()).spawn('git', args, (0, (_extends2 || _load_extends()).default)({}, opts, { env }));
-};
-
-/***/ }),
-/* 374 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.callThroughHook = callThroughHook;
-
-
-const YARN_HOOKS_KEY = 'experimentalYarnHooks';
-
-function callThroughHook(type, fn, context) {
-  if (typeof global === 'undefined') {
-    return fn();
-  }
-
-  if (typeof global[YARN_HOOKS_KEY] !== 'object' || !global[YARN_HOOKS_KEY]) {
-    return fn();
-  }
-
-  const hook = global[YARN_HOOKS_KEY][type];
-
-  if (!hook) {
-    return fn();
-  }
-
-  return hook(fn, context);
-}
-
-/***/ }),
-/* 375 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-const lockPromises = new Map();
-
-/**
- * Acquires a mutex lock over the given key. If the lock can't be acquired, it waits until it's available.
- * @param key Key to get the lock for.
- * @return {Promise.<Function>} A Promise that resolves when the lock is acquired, with the function that
- * must be called to release the lock.
- */
-
-exports.default = key => {
-  let unlockNext;
-  const willLock = new Promise(resolve => unlockNext = resolve);
-  const lockPromise = lockPromises.get(key) || Promise.resolve();
-  const willUnlock = lockPromise.then(() => unlockNext);
-  lockPromises.set(key, lockPromise.then(() => willLock));
-  return willUnlock;
-};
-
-/***/ }),
-/* 376 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = parsePackagePath;
-exports.isValidPackagePath = isValidPackagePath;
-
-
-/**
- * Parse input strings like `package-1/package-2` to an array of packages
- */
-function parsePackagePath(input) {
-  return input.match(/(@[^\/]+\/)?([^/]+)/g) || [];
-}
-
-const WRONG_PATTERNS = /\/$|\/{2,}|\*+$/;
-
-function isValidPackagePath(input) {
-  return !WRONG_PATTERNS.test(input);
-}
-
-/***/ }),
-/* 377 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getPosixPath = getPosixPath;
-exports.resolveWithHome = resolveWithHome;
-
-var _path;
-
-function _load_path() {
-  return _path = __webpack_require__(0);
-}
-
-const userHome = __webpack_require__(67).default;
-
-function getPosixPath(path) {
-  return path.replace(/\\/g, '/');
-}
-
-function resolveWithHome(path) {
-  const homePattern = process.platform === 'win32' ? /^~(\/|\\)/ : /^~\//;
-  if (homePattern.test(path)) {
-    return (0, (_path || _load_path()).resolve)(userHome, path.substr(2));
-  }
-
-  return (0, (_path || _load_path()).resolve)(path);
-}
-
-/***/ }),
-/* 378 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireDefault(__webpack_require__(5));
-}
-
-var _http;
-
-function _load_http() {
-  return _http = _interopRequireDefault(__webpack_require__(87));
-}
-
-var _url;
-
-function _load_url() {
-  return _url = _interopRequireDefault(__webpack_require__(24));
-}
-
-var _dnscache;
-
-function _load_dnscache() {
-  return _dnscache = _interopRequireDefault(__webpack_require__(637));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _requestCaptureHar;
-
-function _load_requestCaptureHar() {
-  return _requestCaptureHar = _interopRequireDefault(__webpack_require__(799));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _blockingQueue;
-
-function _load_blockingQueue() {
-  return _blockingQueue = _interopRequireDefault(__webpack_require__(110));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _network;
-
-function _load_network() {
-  return _network = _interopRequireWildcard(__webpack_require__(337));
-}
-
-var _map;
-
-function _load_map() {
-  return _map = _interopRequireDefault(__webpack_require__(29));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-// Initialize DNS cache so we don't look up the same
-// domains like registry.yarnpkg.com over and over again
-// for each request.
-(0, (_dnscache || _load_dnscache()).default)({
-  enable: true,
-  ttl: 300,
-  cachesize: 10
-});
-
-const successHosts = (0, (_map || _load_map()).default)();
-const controlOffline = (_network || _load_network()).isOffline();
-
-class RequestManager {
-  constructor(reporter) {
-    this.offlineNoRequests = false;
-    this._requestCaptureHar = null;
-    this._requestModule = null;
-    this.offlineQueue = [];
-    this.captureHar = false;
-    this.httpsProxy = '';
-    this.ca = null;
-    this.httpProxy = '';
-    this.strictSSL = true;
-    this.userAgent = '';
-    this.reporter = reporter;
-    this.running = 0;
-    this.queue = [];
-    this.cache = {};
-    this.max = (_constants || _load_constants()).NETWORK_CONCURRENCY;
-    this.maxRetryAttempts = 5;
-  }
-
-  setOptions(opts) {
-    if (opts.userAgent != null) {
-      this.userAgent = opts.userAgent;
-    }
-
-    if (opts.offline != null) {
-      this.offlineNoRequests = opts.offline;
-    }
-
-    if (opts.captureHar != null) {
-      this.captureHar = opts.captureHar;
-    }
-
-    if (opts.httpProxy != null) {
-      this.httpProxy = opts.httpProxy || '';
-    }
-
-    if (opts.httpsProxy === '') {
-      this.httpsProxy = opts.httpProxy || '';
-    } else if (opts.httpsProxy === false) {
-      this.httpsProxy = false;
-    } else {
-      this.httpsProxy = opts.httpsProxy || '';
-    }
-
-    if (opts.strictSSL !== null && typeof opts.strictSSL !== 'undefined') {
-      this.strictSSL = opts.strictSSL;
-    }
-
-    if (opts.ca != null && opts.ca.length > 0) {
-      this.ca = opts.ca;
-    }
-
-    if (opts.networkConcurrency != null) {
-      this.max = opts.networkConcurrency;
-    }
-
-    if (opts.networkTimeout != null) {
-      this.timeout = opts.networkTimeout;
-    }
-
-    if (opts.maxRetryAttempts != null) {
-      this.maxRetryAttempts = opts.maxRetryAttempts;
-    }
-
-    if (opts.cafile != null && opts.cafile != '') {
-      // The CA bundle file can contain one or more certificates with comments/text between each PEM block.
-      // tls.connect wants an array of certificates without any comments/text, so we need to split the string
-      // and strip out any text in between the certificates
-      try {
-        const bundle = (_fs || _load_fs()).default.readFileSync(opts.cafile).toString();
-        const hasPemPrefix = block => block.startsWith('-----BEGIN ');
-        // opts.cafile overrides opts.ca, this matches with npm behavior
-        this.ca = bundle.split(/(-----BEGIN .*\r?\n[^-]+\r?\n--.*)/).filter(hasPemPrefix);
-      } catch (err) {
-        this.reporter.error(`Could not open cafile: ${err.message}`);
-      }
-    }
-
-    if (opts.cert != null) {
-      this.cert = opts.cert;
-    }
-
-    if (opts.key != null) {
-      this.key = opts.key;
-    }
-  }
-
-  /**
-   * Lazy load `request` since it is exceptionally expensive to load and is
-   * often not needed at all.
-   */
-
-  _getRequestModule() {
-    if (!this._requestModule) {
-      const request = __webpack_require__(800);
-      if (this.captureHar) {
-        this._requestCaptureHar = new (_requestCaptureHar || _load_requestCaptureHar()).default(request);
-        this._requestModule = this._requestCaptureHar.request.bind(this._requestCaptureHar);
-      } else {
-        this._requestModule = request;
-      }
-    }
-    return this._requestModule;
-  }
-
-  /**
-   * Queue up a request.
-   */
-
-  request(params) {
-    if (this.offlineNoRequests) {
-      return Promise.reject(new (_errors || _load_errors()).MessageError(this.reporter.lang('cantRequestOffline', params.url)));
-    }
-
-    const cached = this.cache[params.url];
-    if (cached) {
-      return cached;
-    }
-
-    params.method = params.method || 'GET';
-    params.forever = true;
-    params.retryAttempts = 0;
-    params.strictSSL = this.strictSSL;
-    params.headers = Object.assign({
-      'User-Agent': this.userAgent
-    }, params.headers);
-
-    const promise = new Promise((resolve, reject) => {
-      this.queue.push({ params, reject, resolve });
-      this.shiftQueue();
-    });
-
-    // we can't cache a request with a processor
-    if (!params.process) {
-      this.cache[params.url] = promise;
-    }
-
-    return promise;
-  }
-
-  /**
-   * Clear the request cache. This is important as we cache all HTTP requests so you'll
-   * want to do this as soon as you can.
-   */
-
-  clearCache() {
-    this.cache = {};
-    if (this._requestCaptureHar != null) {
-      this._requestCaptureHar.clear();
-    }
-  }
-
-  /**
-   * Check if an error is possibly due to lost or poor network connectivity.
-   */
-
-  isPossibleOfflineError(err) {
-    const code = err.code,
-          hostname = err.hostname;
-
-    if (!code) {
-      return false;
-    }
-
-    // network was previously online but now we're offline
-    const possibleOfflineChange = !controlOffline && !(_network || _load_network()).isOffline();
-    if (code === 'ENOTFOUND' && possibleOfflineChange) {
-      // can't resolve a domain
-      return true;
-    }
-
-    // used to be able to resolve this domain! something is wrong
-    if (code === 'ENOTFOUND' && hostname && successHosts[hostname]) {
-      // can't resolve this domain but we've successfully resolved it before
-      return true;
-    }
-
-    // network was previously offline and we can't resolve the domain
-    if (code === 'ENOTFOUND' && controlOffline) {
-      return true;
-    }
-
-    // connection was reset or dropped
-    if (code === 'ECONNRESET') {
-      return true;
-    }
-
-    // TCP timeout
-    if (code === 'ESOCKETTIMEDOUT' || code === 'ETIMEDOUT') {
-      return true;
-    }
-
-    return false;
-  }
-
-  /**
-   * Queue up request arguments to be retried. Start a network connectivity timer if there
-   * isn't already one.
-   */
-
-  queueForRetry(opts) {
-    if (opts.retryReason) {
-      let containsReason = false;
-
-      for (var _iterator = this.offlineQueue, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const queuedOpts = _ref;
-
-        if (queuedOpts.retryReason === opts.retryReason) {
-          containsReason = true;
-          break;
-        }
-      }
-
-      if (!containsReason) {
-        this.reporter.info(opts.retryReason);
-      }
-    }
-
-    if (!this.offlineQueue.length) {
-      this.initOfflineRetry();
-    }
-
-    this.offlineQueue.push(opts);
-  }
-
-  /**
-   * Begin timers to retry failed requests when we possibly establish network connectivity
-   * again.
-   */
-
-  initOfflineRetry() {
-    setTimeout(() => {
-      const queue = this.offlineQueue;
-      this.offlineQueue = [];
-      for (var _iterator2 = queue, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref2 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref2 = _i2.value;
-        }
-
-        const opts = _ref2;
-
-        this.execute(opts);
-      }
-    }, 3000);
-  }
-
-  /**
-   * Execute a request.
-   */
-
-  execute(opts) {
-    const params = opts.params;
-    const reporter = this.reporter;
-
-
-    const buildNext = fn => data => {
-      fn(data);
-      this.running--;
-      this.shiftQueue();
-    };
-
-    const resolve = buildNext(opts.resolve);
-
-    const rejectNext = buildNext(opts.reject);
-    const reject = function reject(err) {
-      err.message = `${params.url}: ${err.message}`;
-      rejectNext(err);
-    };
-
-    const queueForRetry = reason => {
-      const attempts = params.retryAttempts || 0;
-      if (attempts >= this.maxRetryAttempts - 1) {
-        return false;
-      }
-      if (opts.params.method && opts.params.method.toUpperCase() !== 'GET') {
-        return false;
-      }
-      params.retryAttempts = attempts + 1;
-      if (typeof params.cleanup === 'function') {
-        params.cleanup();
-      }
-      opts.retryReason = reason;
-      this.queueForRetry(opts);
-      return true;
-    };
-
-    let calledOnError = false;
-    const onError = err => {
-      if (calledOnError) {
-        return;
-      }
-      calledOnError = true;
-
-      if (this.isPossibleOfflineError(err)) {
-        if (!queueForRetry(this.reporter.lang('offlineRetrying'))) {
-          reject(err);
-        }
-      } else {
-        reject(err);
-      }
-    };
-
-    if (!params.process) {
-      const parts = (_url || _load_url()).default.parse(params.url);
-
-      params.callback = (err, res, body) => {
-        if (err) {
-          onError(err);
-          return;
-        }
-
-        successHosts[parts.hostname] = true;
-
-        this.reporter.verbose(this.reporter.lang('verboseRequestFinish', params.url, res.statusCode));
-
-        if (res.statusCode === 408 || res.statusCode >= 500) {
-          const description = `${res.statusCode} ${(_http || _load_http()).default.STATUS_CODES[res.statusCode]}`;
-          if (!queueForRetry(this.reporter.lang('internalServerErrorRetrying', description))) {
-            throw new (_errors || _load_errors()).ResponseError(this.reporter.lang('requestFailed', description), res.statusCode);
-          } else {
-            return;
-          }
-        }
-
-        if (res.statusCode === 401 && res.headers['www-authenticate']) {
-          const authMethods = res.headers['www-authenticate'].split(/,\s*/).map(s => s.toLowerCase());
-
-          if (authMethods.indexOf('otp') !== -1) {
-            reject(new (_errors || _load_errors()).OneTimePasswordError());
-            return;
-          }
-        }
-
-        if (body && typeof body.error === 'string') {
-          reject(new Error(body.error));
-          return;
-        }
-
-        if ([400, 401, 404].concat(params.rejectStatusCode || []).indexOf(res.statusCode) !== -1) {
-          // So this is actually a rejection ... the hosted git resolver uses this to know whether http is supported
-          resolve(false);
-        } else if (res.statusCode >= 400) {
-          const errMsg = body && body.message || reporter.lang('requestError', params.url, res.statusCode);
-          reject(new Error(errMsg));
-        } else {
-          resolve(body);
-        }
-      };
-    }
-
-    if (params.buffer) {
-      params.encoding = null;
-    }
-
-    let proxy = this.httpProxy;
-    if (params.url.startsWith('https:')) {
-      proxy = this.httpsProxy;
-    }
-
-    if (proxy) {
-      // if no proxy is set, do not pass a proxy down to request.
-      // the request library will internally check the HTTP_PROXY and HTTPS_PROXY env vars.
-      params.proxy = String(proxy);
-    } else if (proxy === false) {
-      // passing empty string prevents the underlying library from falling back to the env vars.
-      // an explicit false in the yarn config should override the env var. See #4546.
-      params.proxy = '';
-    }
-
-    if (this.ca != null) {
-      params.ca = this.ca;
-    }
-
-    if (this.cert != null) {
-      params.cert = this.cert;
-    }
-
-    if (this.key != null) {
-      params.key = this.key;
-    }
-
-    if (this.timeout != null) {
-      params.timeout = this.timeout;
-    }
-
-    const request = this._getRequestModule();
-    const req = request(params);
-    this.reporter.verbose(this.reporter.lang('verboseRequestStart', params.method, params.url));
-
-    req.on('error', onError);
-
-    const queue = params.queue;
-    if (queue) {
-      req.on('data', queue.stillActive.bind(queue));
-    }
-
-    const process = params.process;
-    if (process) {
-      req.on('response', res => {
-        if (res.statusCode >= 200 && res.statusCode < 300) {
-          return;
-        }
-
-        const description = `${res.statusCode} ${(_http || _load_http()).default.STATUS_CODES[res.statusCode]}`;
-        reject(new (_errors || _load_errors()).ResponseError(this.reporter.lang('requestFailed', description), res.statusCode));
-
-        req.abort();
-      });
-      process(req, resolve, reject);
-    }
-  }
-
-  /**
-   * Remove an item from the queue. Create it's request options and execute it.
-   */
-
-  shiftQueue() {
-    if (this.running >= this.max || !this.queue.length) {
-      return;
-    }
-
-    const opts = this.queue.shift();
-
-    this.running++;
-    this.execute(opts);
-  }
-
-  saveHar(filename) {
-    if (!this.captureHar) {
-      throw new Error(this.reporter.lang('requestManagerNotSetupHAR'));
-    }
-    // No request may have occurred at all.
-    this._getRequestModule();
-    (0, (_invariant || _load_invariant()).default)(this._requestCaptureHar != null, 'request-capture-har not setup');
-    this._requestCaptureHar.saveHar(filename);
-  }
-}
-exports.default = RequestManager;
-
-/***/ }),
-/* 379 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var crypto_hash_sha512 = __webpack_require__(76).lowlevel.crypto_hash;
-
-/*
- * This file is a 1:1 port from the OpenBSD blowfish.c and bcrypt_pbkdf.c. As a
- * result, it retains the original copyright and license. The two files are
- * under slightly different (but compatible) licenses, and are here combined in
- * one file.
- *
- * Credit for the actual porting work goes to:
- *  Devi Mandiri <me@devi.web.id>
- */
-
-/*
- * The Blowfish portions are under the following license:
- *
- * Blowfish block cipher for OpenBSD
- * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
- * All rights reserved.
- *
- * Implementation advice by David Mazieres <dm@lcs.mit.edu>.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * The bcrypt_pbkdf portions are under the following license:
- *
- * Copyright (c) 2013 Ted Unangst <tedu@openbsd.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-/*
- * Performance improvements (Javascript-specific):
- *
- * Copyright 2016, Joyent Inc
- * Author: Alex Wilson <alex.wilson@joyent.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-// Ported from OpenBSD bcrypt_pbkdf.c v1.9
-
-var BLF_J = 0;
-
-var Blowfish = function() {
-  this.S = [
-    new Uint32Array([
-      0xd1310ba6, 0x98dfb5ac, 0x2ffd72db, 0xd01adfb7,
-      0xb8e1afed, 0x6a267e96, 0xba7c9045, 0xf12c7f99,
-      0x24a19947, 0xb3916cf7, 0x0801f2e2, 0x858efc16,
-      0x636920d8, 0x71574e69, 0xa458fea3, 0xf4933d7e,
-      0x0d95748f, 0x728eb658, 0x718bcd58, 0x82154aee,
-      0x7b54a41d, 0xc25a59b5, 0x9c30d539, 0x2af26013,
-      0xc5d1b023, 0x286085f0, 0xca417918, 0xb8db38ef,
-      0x8e79dcb0, 0x603a180e, 0x6c9e0e8b, 0xb01e8a3e,
-      0xd71577c1, 0xbd314b27, 0x78af2fda, 0x55605c60,
-      0xe65525f3, 0xaa55ab94, 0x57489862, 0x63e81440,
-      0x55ca396a, 0x2aab10b6, 0xb4cc5c34, 0x1141e8ce,
-      0xa15486af, 0x7c72e993, 0xb3ee1411, 0x636fbc2a,
-      0x2ba9c55d, 0x741831f6, 0xce5c3e16, 0x9b87931e,
-      0xafd6ba33, 0x6c24cf5c, 0x7a325381, 0x28958677,
-      0x3b8f4898, 0x6b4bb9af, 0xc4bfe81b, 0x66282193,
-      0x61d809cc, 0xfb21a991, 0x487cac60, 0x5dec8032,
-      0xef845d5d, 0xe98575b1, 0xdc262302, 0xeb651b88,
-      0x23893e81, 0xd396acc5, 0x0f6d6ff3, 0x83f44239,
-      0x2e0b4482, 0xa4842004, 0x69c8f04a, 0x9e1f9b5e,
-      0x21c66842, 0xf6e96c9a, 0x670c9c61, 0xabd388f0,
-      0x6a51a0d2, 0xd8542f68, 0x960fa728, 0xab5133a3,
-      0x6eef0b6c, 0x137a3be4, 0xba3bf050, 0x7efb2a98,
-      0xa1f1651d, 0x39af0176, 0x66ca593e, 0x82430e88,
-      0x8cee8619, 0x456f9fb4, 0x7d84a5c3, 0x3b8b5ebe,
-      0xe06f75d8, 0x85c12073, 0x401a449f, 0x56c16aa6,
-      0x4ed3aa62, 0x363f7706, 0x1bfedf72, 0x429b023d,
-      0x37d0d724, 0xd00a1248, 0xdb0fead3, 0x49f1c09b,
-      0x075372c9, 0x80991b7b, 0x25d479d8, 0xf6e8def7,
-      0xe3fe501a, 0xb6794c3b, 0x976ce0bd, 0x04c006ba,
-      0xc1a94fb6, 0x409f60c4, 0x5e5c9ec2, 0x196a2463,
-      0x68fb6faf, 0x3e6c53b5, 0x1339b2eb, 0x3b52ec6f,
-      0x6dfc511f, 0x9b30952c, 0xcc814544, 0xaf5ebd09,
-      0xbee3d004, 0xde334afd, 0x660f2807, 0x192e4bb3,
-      0xc0cba857, 0x45c8740f, 0xd20b5f39, 0xb9d3fbdb,
-      0x5579c0bd, 0x1a60320a, 0xd6a100c6, 0x402c7279,
-      0x679f25fe, 0xfb1fa3cc, 0x8ea5e9f8, 0xdb3222f8,
-      0x3c7516df, 0xfd616b15, 0x2f501ec8, 0xad0552ab,
-      0x323db5fa, 0xfd238760, 0x53317b48, 0x3e00df82,
-      0x9e5c57bb, 0xca6f8ca0, 0x1a87562e, 0xdf1769db,
-      0xd542a8f6, 0x287effc3, 0xac6732c6, 0x8c4f5573,
-      0x695b27b0, 0xbbca58c8, 0xe1ffa35d, 0xb8f011a0,
-      0x10fa3d98, 0xfd2183b8, 0x4afcb56c, 0x2dd1d35b,
-      0x9a53e479, 0xb6f84565, 0xd28e49bc, 0x4bfb9790,
-      0xe1ddf2da, 0xa4cb7e33, 0x62fb1341, 0xcee4c6e8,
-      0xef20cada, 0x36774c01, 0xd07e9efe, 0x2bf11fb4,
-      0x95dbda4d, 0xae909198, 0xeaad8e71, 0x6b93d5a0,
-      0xd08ed1d0, 0xafc725e0, 0x8e3c5b2f, 0x8e7594b7,
-      0x8ff6e2fb, 0xf2122b64, 0x8888b812, 0x900df01c,
-      0x4fad5ea0, 0x688fc31c, 0xd1cff191, 0xb3a8c1ad,
-      0x2f2f2218, 0xbe0e1777, 0xea752dfe, 0x8b021fa1,
-      0xe5a0cc0f, 0xb56f74e8, 0x18acf3d6, 0xce89e299,
-      0xb4a84fe0, 0xfd13e0b7, 0x7cc43b81, 0xd2ada8d9,
-      0x165fa266, 0x80957705, 0x93cc7314, 0x211a1477,
-      0xe6ad2065, 0x77b5fa86, 0xc75442f5, 0xfb9d35cf,
-      0xebcdaf0c, 0x7b3e89a0, 0xd6411bd3, 0xae1e7e49,
-      0x00250e2d, 0x2071b35e, 0x226800bb, 0x57b8e0af,
-      0x2464369b, 0xf009b91e, 0x5563911d, 0x59dfa6aa,
-      0x78c14389, 0xd95a537f, 0x207d5ba2, 0x02e5b9c5,
-      0x83260376, 0x6295cfa9, 0x11c81968, 0x4e734a41,
-      0xb3472dca, 0x7b14a94a, 0x1b510052, 0x9a532915,
-      0xd60f573f, 0xbc9bc6e4, 0x2b60a476, 0x81e67400,
-      0x08ba6fb5, 0x571be91f, 0xf296ec6b, 0x2a0dd915,
-      0xb6636521, 0xe7b9f9b6, 0xff34052e, 0xc5855664,
-      0x53b02d5d, 0xa99f8fa1, 0x08ba4799, 0x6e85076a]),
-    new Uint32Array([
-      0x4b7a70e9, 0xb5b32944, 0xdb75092e, 0xc4192623,
-      0xad6ea6b0, 0x49a7df7d, 0x9cee60b8, 0x8fedb266,
-      0xecaa8c71, 0x699a17ff, 0x5664526c, 0xc2b19ee1,
-      0x193602a5, 0x75094c29, 0xa0591340, 0xe4183a3e,
-      0x3f54989a, 0x5b429d65, 0x6b8fe4d6, 0x99f73fd6,
-      0xa1d29c07, 0xefe830f5, 0x4d2d38e6, 0xf0255dc1,
-      0x4cdd2086, 0x8470eb26, 0x6382e9c6, 0x021ecc5e,
-      0x09686b3f, 0x3ebaefc9, 0x3c971814, 0x6b6a70a1,
-      0x687f3584, 0x52a0e286, 0xb79c5305, 0xaa500737,
-      0x3e07841c, 0x7fdeae5c, 0x8e7d44ec, 0x5716f2b8,
-      0xb03ada37, 0xf0500c0d, 0xf01c1f04, 0x0200b3ff,
-      0xae0cf51a, 0x3cb574b2, 0x25837a58, 0xdc0921bd,
-      0xd19113f9, 0x7ca92ff6, 0x94324773, 0x22f54701,
-      0x3ae5e581, 0x37c2dadc, 0xc8b57634, 0x9af3dda7,
-      0xa9446146, 0x0fd0030e, 0xecc8c73e, 0xa4751e41,
-      0xe238cd99, 0x3bea0e2f, 0x3280bba1, 0x183eb331,
-      0x4e548b38, 0x4f6db908, 0x6f420d03, 0xf60a04bf,
-      0x2cb81290, 0x24977c79, 0x5679b072, 0xbcaf89af,
-      0xde9a771f, 0xd9930810, 0xb38bae12, 0xdccf3f2e,
-      0x5512721f, 0x2e6b7124, 0x501adde6, 0x9f84cd87,
-      0x7a584718, 0x7408da17, 0xbc9f9abc, 0xe94b7d8c,
-      0xec7aec3a, 0xdb851dfa, 0x63094366, 0xc464c3d2,
-      0xef1c1847, 0x3215d908, 0xdd433b37, 0x24c2ba16,
-      0x12a14d43, 0x2a65c451, 0x50940002, 0x133ae4dd,
-      0x71dff89e, 0x10314e55, 0x81ac77d6, 0x5f11199b,
-      0x043556f1, 0xd7a3c76b, 0x3c11183b, 0x5924a509,
-      0xf28fe6ed, 0x97f1fbfa, 0x9ebabf2c, 0x1e153c6e,
-      0x86e34570, 0xeae96fb1, 0x860e5e0a, 0x5a3e2ab3,
-      0x771fe71c, 0x4e3d06fa, 0x2965dcb9, 0x99e71d0f,
-      0x803e89d6, 0x5266c825, 0x2e4cc978, 0x9c10b36a,
-      0xc6150eba, 0x94e2ea78, 0xa5fc3c53, 0x1e0a2df4,
-      0xf2f74ea7, 0x361d2b3d, 0x1939260f, 0x19c27960,
-      0x5223a708, 0xf71312b6, 0xebadfe6e, 0xeac31f66,
-      0xe3bc4595, 0xa67bc883, 0xb17f37d1, 0x018cff28,
-      0xc332ddef, 0xbe6c5aa5, 0x65582185, 0x68ab9802,
-      0xeecea50f, 0xdb2f953b, 0x2aef7dad, 0x5b6e2f84,
-      0x1521b628, 0x29076170, 0xecdd4775, 0x619f1510,
-      0x13cca830, 0xeb61bd96, 0x0334fe1e, 0xaa0363cf,
-      0xb5735c90, 0x4c70a239, 0xd59e9e0b, 0xcbaade14,
-      0xeecc86bc, 0x60622ca7, 0x9cab5cab, 0xb2f3846e,
-      0x648b1eaf, 0x19bdf0ca, 0xa02369b9, 0x655abb50,
-      0x40685a32, 0x3c2ab4b3, 0x319ee9d5, 0xc021b8f7,
-      0x9b540b19, 0x875fa099, 0x95f7997e, 0x623d7da8,
-      0xf837889a, 0x97e32d77, 0x11ed935f, 0x16681281,
-      0x0e358829, 0xc7e61fd6, 0x96dedfa1, 0x7858ba99,
-      0x57f584a5, 0x1b227263, 0x9b83c3ff, 0x1ac24696,
-      0xcdb30aeb, 0x532e3054, 0x8fd948e4, 0x6dbc3128,
-      0x58ebf2ef, 0x34c6ffea, 0xfe28ed61, 0xee7c3c73,
-      0x5d4a14d9, 0xe864b7e3, 0x42105d14, 0x203e13e0,
-      0x45eee2b6, 0xa3aaabea, 0xdb6c4f15, 0xfacb4fd0,
-      0xc742f442, 0xef6abbb5, 0x654f3b1d, 0x41cd2105,
-      0xd81e799e, 0x86854dc7, 0xe44b476a, 0x3d816250,
-      0xcf62a1f2, 0x5b8d2646, 0xfc8883a0, 0xc1c7b6a3,
-      0x7f1524c3, 0x69cb7492, 0x47848a0b, 0x5692b285,
-      0x095bbf00, 0xad19489d, 0x1462b174, 0x23820e00,
-      0x58428d2a, 0x0c55f5ea, 0x1dadf43e, 0x233f7061,
-      0x3372f092, 0x8d937e41, 0xd65fecf1, 0x6c223bdb,
-      0x7cde3759, 0xcbee7460, 0x4085f2a7, 0xce77326e,
-      0xa6078084, 0x19f8509e, 0xe8efd855, 0x61d99735,
-      0xa969a7aa, 0xc50c06c2, 0x5a04abfc, 0x800bcadc,
-      0x9e447a2e, 0xc3453484, 0xfdd56705, 0x0e1e9ec9,
-      0xdb73dbd3, 0x105588cd, 0x675fda79, 0xe3674340,
-      0xc5c43465, 0x713e38d8, 0x3d28f89e, 0xf16dff20,
-      0x153e21e7, 0x8fb03d4a, 0xe6e39f2b, 0xdb83adf7]),
-    new Uint32Array([
-      0xe93d5a68, 0x948140f7, 0xf64c261c, 0x94692934,
-      0x411520f7, 0x7602d4f7, 0xbcf46b2e, 0xd4a20068,
-      0xd4082471, 0x3320f46a, 0x43b7d4b7, 0x500061af,
-      0x1e39f62e, 0x97244546, 0x14214f74, 0xbf8b8840,
-      0x4d95fc1d, 0x96b591af, 0x70f4ddd3, 0x66a02f45,
-      0xbfbc09ec, 0x03bd9785, 0x7fac6dd0, 0x31cb8504,
-      0x96eb27b3, 0x55fd3941, 0xda2547e6, 0xabca0a9a,
-      0x28507825, 0x530429f4, 0x0a2c86da, 0xe9b66dfb,
-      0x68dc1462, 0xd7486900, 0x680ec0a4, 0x27a18dee,
-      0x4f3ffea2, 0xe887ad8c, 0xb58ce006, 0x7af4d6b6,
-      0xaace1e7c, 0xd3375fec, 0xce78a399, 0x406b2a42,
-      0x20fe9e35, 0xd9f385b9, 0xee39d7ab, 0x3b124e8b,
-      0x1dc9faf7, 0x4b6d1856, 0x26a36631, 0xeae397b2,
-      0x3a6efa74, 0xdd5b4332, 0x6841e7f7, 0xca7820fb,
-      0xfb0af54e, 0xd8feb397, 0x454056ac, 0xba489527,
-      0x55533a3a, 0x20838d87, 0xfe6ba9b7, 0xd096954b,
-      0x55a867bc, 0xa1159a58, 0xcca92963, 0x99e1db33,
-      0xa62a4a56, 0x3f3125f9, 0x5ef47e1c, 0x9029317c,
-      0xfdf8e802, 0x04272f70, 0x80bb155c, 0x05282ce3,
-      0x95c11548, 0xe4c66d22, 0x48c1133f, 0xc70f86dc,
-      0x07f9c9ee, 0x41041f0f, 0x404779a4, 0x5d886e17,
-      0x325f51eb, 0xd59bc0d1, 0xf2bcc18f, 0x41113564,
-      0x257b7834, 0x602a9c60, 0xdff8e8a3, 0x1f636c1b,
-      0x0e12b4c2, 0x02e1329e, 0xaf664fd1, 0xcad18115,
-      0x6b2395e0, 0x333e92e1, 0x3b240b62, 0xeebeb922,
-      0x85b2a20e, 0xe6ba0d99, 0xde720c8c, 0x2da2f728,
-      0xd0127845, 0x95b794fd, 0x647d0862, 0xe7ccf5f0,
-      0x5449a36f, 0x877d48fa, 0xc39dfd27, 0xf33e8d1e,
-      0x0a476341, 0x992eff74, 0x3a6f6eab, 0xf4f8fd37,
-      0xa812dc60, 0xa1ebddf8, 0x991be14c, 0xdb6e6b0d,
-      0xc67b5510, 0x6d672c37, 0x2765d43b, 0xdcd0e804,
-      0xf1290dc7, 0xcc00ffa3, 0xb5390f92, 0x690fed0b,
-      0x667b9ffb, 0xcedb7d9c, 0xa091cf0b, 0xd9155ea3,
-      0xbb132f88, 0x515bad24, 0x7b9479bf, 0x763bd6eb,
-      0x37392eb3, 0xcc115979, 0x8026e297, 0xf42e312d,
-      0x6842ada7, 0xc66a2b3b, 0x12754ccc, 0x782ef11c,
-      0x6a124237, 0xb79251e7, 0x06a1bbe6, 0x4bfb6350,
-      0x1a6b1018, 0x11caedfa, 0x3d25bdd8, 0xe2e1c3c9,
-      0x44421659, 0x0a121386, 0xd90cec6e, 0xd5abea2a,
-      0x64af674e, 0xda86a85f, 0xbebfe988, 0x64e4c3fe,
-      0x9dbc8057, 0xf0f7c086, 0x60787bf8, 0x6003604d,
-      0xd1fd8346, 0xf6381fb0, 0x7745ae04, 0xd736fccc,
-      0x83426b33, 0xf01eab71, 0xb0804187, 0x3c005e5f,
-      0x77a057be, 0xbde8ae24, 0x55464299, 0xbf582e61,
-      0x4e58f48f, 0xf2ddfda2, 0xf474ef38, 0x8789bdc2,
-      0x5366f9c3, 0xc8b38e74, 0xb475f255, 0x46fcd9b9,
-      0x7aeb2661, 0x8b1ddf84, 0x846a0e79, 0x915f95e2,
-      0x466e598e, 0x20b45770, 0x8cd55591, 0xc902de4c,
-      0xb90bace1, 0xbb8205d0, 0x11a86248, 0x7574a99e,
-      0xb77f19b6, 0xe0a9dc09, 0x662d09a1, 0xc4324633,
-      0xe85a1f02, 0x09f0be8c, 0x4a99a025, 0x1d6efe10,
-      0x1ab93d1d, 0x0ba5a4df, 0xa186f20f, 0x2868f169,
-      0xdcb7da83, 0x573906fe, 0xa1e2ce9b, 0x4fcd7f52,
-      0x50115e01, 0xa70683fa, 0xa002b5c4, 0x0de6d027,
-      0x9af88c27, 0x773f8641, 0xc3604c06, 0x61a806b5,
-      0xf0177a28, 0xc0f586e0, 0x006058aa, 0x30dc7d62,
-      0x11e69ed7, 0x2338ea63, 0x53c2dd94, 0xc2c21634,
-      0xbbcbee56, 0x90bcb6de, 0xebfc7da1, 0xce591d76,
-      0x6f05e409, 0x4b7c0188, 0x39720a3d, 0x7c927c24,
-      0x86e3725f, 0x724d9db9, 0x1ac15bb4, 0xd39eb8fc,
-      0xed545578, 0x08fca5b5, 0xd83d7cd3, 0x4dad0fc4,
-      0x1e50ef5e, 0xb161e6f8, 0xa28514d9, 0x6c51133c,
-      0x6fd5c7e7, 0x56e14ec4, 0x362abfce, 0xddc6c837,
-      0xd79a3234, 0x92638212, 0x670efa8e, 0x406000e0]),
-    new Uint32Array([
-      0x3a39ce37, 0xd3faf5cf, 0xabc27737, 0x5ac52d1b,
-      0x5cb0679e, 0x4fa33742, 0xd3822740, 0x99bc9bbe,
-      0xd5118e9d, 0xbf0f7315, 0xd62d1c7e, 0xc700c47b,
-      0xb78c1b6b, 0x21a19045, 0xb26eb1be, 0x6a366eb4,
-      0x5748ab2f, 0xbc946e79, 0xc6a376d2, 0x6549c2c8,
-      0x530ff8ee, 0x468dde7d, 0xd5730a1d, 0x4cd04dc6,
-      0x2939bbdb, 0xa9ba4650, 0xac9526e8, 0xbe5ee304,
-      0xa1fad5f0, 0x6a2d519a, 0x63ef8ce2, 0x9a86ee22,
-      0xc089c2b8, 0x43242ef6, 0xa51e03aa, 0x9cf2d0a4,
-      0x83c061ba, 0x9be96a4d, 0x8fe51550, 0xba645bd6,
-      0x2826a2f9, 0xa73a3ae1, 0x4ba99586, 0xef5562e9,
-      0xc72fefd3, 0xf752f7da, 0x3f046f69, 0x77fa0a59,
-      0x80e4a915, 0x87b08601, 0x9b09e6ad, 0x3b3ee593,
-      0xe990fd5a, 0x9e34d797, 0x2cf0b7d9, 0x022b8b51,
-      0x96d5ac3a, 0x017da67d, 0xd1cf3ed6, 0x7c7d2d28,
-      0x1f9f25cf, 0xadf2b89b, 0x5ad6b472, 0x5a88f54c,
-      0xe029ac71, 0xe019a5e6, 0x47b0acfd, 0xed93fa9b,
-      0xe8d3c48d, 0x283b57cc, 0xf8d56629, 0x79132e28,
-      0x785f0191, 0xed756055, 0xf7960e44, 0xe3d35e8c,
-      0x15056dd4, 0x88f46dba, 0x03a16125, 0x0564f0bd,
-      0xc3eb9e15, 0x3c9057a2, 0x97271aec, 0xa93a072a,
-      0x1b3f6d9b, 0x1e6321f5, 0xf59c66fb, 0x26dcf319,
-      0x7533d928, 0xb155fdf5, 0x03563482, 0x8aba3cbb,
-      0x28517711, 0xc20ad9f8, 0xabcc5167, 0xccad925f,
-      0x4de81751, 0x3830dc8e, 0x379d5862, 0x9320f991,
-      0xea7a90c2, 0xfb3e7bce, 0x5121ce64, 0x774fbe32,
-      0xa8b6e37e, 0xc3293d46, 0x48de5369, 0x6413e680,
-      0xa2ae0810, 0xdd6db224, 0x69852dfd, 0x09072166,
-      0xb39a460a, 0x6445c0dd, 0x586cdecf, 0x1c20c8ae,
-      0x5bbef7dd, 0x1b588d40, 0xccd2017f, 0x6bb4e3bb,
-      0xdda26a7e, 0x3a59ff45, 0x3e350a44, 0xbcb4cdd5,
-      0x72eacea8, 0xfa6484bb, 0x8d6612ae, 0xbf3c6f47,
-      0xd29be463, 0x542f5d9e, 0xaec2771b, 0xf64e6370,
-      0x740e0d8d, 0xe75b1357, 0xf8721671, 0xaf537d5d,
-      0x4040cb08, 0x4eb4e2cc, 0x34d2466a, 0x0115af84,
-      0xe1b00428, 0x95983a1d, 0x06b89fb4, 0xce6ea048,
-      0x6f3f3b82, 0x3520ab82, 0x011a1d4b, 0x277227f8,
-      0x611560b1, 0xe7933fdc, 0xbb3a792b, 0x344525bd,
-      0xa08839e1, 0x51ce794b, 0x2f32c9b7, 0xa01fbac9,
-      0xe01cc87e, 0xbcc7d1f6, 0xcf0111c3, 0xa1e8aac7,
-      0x1a908749, 0xd44fbd9a, 0xd0dadecb, 0xd50ada38,
-      0x0339c32a, 0xc6913667, 0x8df9317c, 0xe0b12b4f,
-      0xf79e59b7, 0x43f5bb3a, 0xf2d519ff, 0x27d9459c,
-      0xbf97222c, 0x15e6fc2a, 0x0f91fc71, 0x9b941525,
-      0xfae59361, 0xceb69ceb, 0xc2a86459, 0x12baa8d1,
-      0xb6c1075e, 0xe3056a0c, 0x10d25065, 0xcb03a442,
-      0xe0ec6e0e, 0x1698db3b, 0x4c98a0be, 0x3278e964,
-      0x9f1f9532, 0xe0d392df, 0xd3a0342b, 0x8971f21e,
-      0x1b0a7441, 0x4ba3348c, 0xc5be7120, 0xc37632d8,
-      0xdf359f8d, 0x9b992f2e, 0xe60b6f47, 0x0fe3f11d,
-      0xe54cda54, 0x1edad891, 0xce6279cf, 0xcd3e7e6f,
-      0x1618b166, 0xfd2c1d05, 0x848fd2c5, 0xf6fb2299,
-      0xf523f357, 0xa6327623, 0x93a83531, 0x56cccd02,
-      0xacf08162, 0x5a75ebb5, 0x6e163697, 0x88d273cc,
-      0xde966292, 0x81b949d0, 0x4c50901b, 0x71c65614,
-      0xe6c6c7bd, 0x327a140a, 0x45e1d006, 0xc3f27b9a,
-      0xc9aa53fd, 0x62a80f00, 0xbb25bfe2, 0x35bdd2f6,
-      0x71126905, 0xb2040222, 0xb6cbcf7c, 0xcd769c2b,
-      0x53113ec0, 0x1640e3d3, 0x38abbd60, 0x2547adf0,
-      0xba38209c, 0xf746ce76, 0x77afa1c5, 0x20756060,
-      0x85cbfe4e, 0x8ae88dd8, 0x7aaaf9b0, 0x4cf9aa7e,
-      0x1948c25c, 0x02fb8a8c, 0x01c36ae4, 0xd6ebe1f9,
-      0x90d4f869, 0xa65cdea0, 0x3f09252d, 0xc208e69f,
-      0xb74e6132, 0xce77e25b, 0x578fdfe3, 0x3ac372e6])
-    ];
-  this.P = new Uint32Array([
-    0x243f6a88, 0x85a308d3, 0x13198a2e, 0x03707344,
-    0xa4093822, 0x299f31d0, 0x082efa98, 0xec4e6c89,
-    0x452821e6, 0x38d01377, 0xbe5466cf, 0x34e90c6c,
-    0xc0ac29b7, 0xc97c50dd, 0x3f84d5b5, 0xb5470917,
-    0x9216d5d9, 0x8979fb1b]);
-};
-
-function F(S, x8, i) {
-  return (((S[0][x8[i+3]] +
-            S[1][x8[i+2]]) ^
-            S[2][x8[i+1]]) +
-            S[3][x8[i]]);
-};
-
-Blowfish.prototype.encipher = function(x, x8) {
-  if (x8 === undefined) {
-    x8 = new Uint8Array(x.buffer);
-    if (x.byteOffset !== 0)
-      x8 = x8.subarray(x.byteOffset);
-  }
-  x[0] ^= this.P[0];
-  for (var i = 1; i < 16; i += 2) {
-    x[1] ^= F(this.S, x8, 0) ^ this.P[i];
-    x[0] ^= F(this.S, x8, 4) ^ this.P[i+1];
-  }
-  var t = x[0];
-  x[0] = x[1] ^ this.P[17];
-  x[1] = t;
-};
-
-Blowfish.prototype.decipher = function(x) {
-  var x8 = new Uint8Array(x.buffer);
-  if (x.byteOffset !== 0)
-    x8 = x8.subarray(x.byteOffset);
-  x[0] ^= this.P[17];
-  for (var i = 16; i > 0; i -= 2) {
-    x[1] ^= F(this.S, x8, 0) ^ this.P[i];
-    x[0] ^= F(this.S, x8, 4) ^ this.P[i-1];
-  }
-  var t = x[0];
-  x[0] = x[1] ^ this.P[0];
-  x[1] = t;
-};
-
-function stream2word(data, databytes){
-  var i, temp = 0;
-  for (i = 0; i < 4; i++, BLF_J++) {
-    if (BLF_J >= databytes) BLF_J = 0;
-    temp = (temp << 8) | data[BLF_J];
-  }
-  return temp;
-};
-
-Blowfish.prototype.expand0state = function(key, keybytes) {
-  var d = new Uint32Array(2), i, k;
-  var d8 = new Uint8Array(d.buffer);
-
-  for (i = 0, BLF_J = 0; i < 18; i++) {
-    this.P[i] ^= stream2word(key, keybytes);
-  }
-  BLF_J = 0;
-
-  for (i = 0; i < 18; i += 2) {
-    this.encipher(d, d8);
-    this.P[i]   = d[0];
-    this.P[i+1] = d[1];
-  }
-
-  for (i = 0; i < 4; i++) {
-    for (k = 0; k < 256; k += 2) {
-      this.encipher(d, d8);
-      this.S[i][k]   = d[0];
-      this.S[i][k+1] = d[1];
-    }
-  }
-};
-
-Blowfish.prototype.expandstate = function(data, databytes, key, keybytes) {
-  var d = new Uint32Array(2), i, k;
-
-  for (i = 0, BLF_J = 0; i < 18; i++) {
-    this.P[i] ^= stream2word(key, keybytes);
-  }
-
-  for (i = 0, BLF_J = 0; i < 18; i += 2) {
-    d[0] ^= stream2word(data, databytes);
-    d[1] ^= stream2word(data, databytes);
-    this.encipher(d);
-    this.P[i]   = d[0];
-    this.P[i+1] = d[1];
-  }
-
-  for (i = 0; i < 4; i++) {
-    for (k = 0; k < 256; k += 2) {
-      d[0] ^= stream2word(data, databytes);
-      d[1] ^= stream2word(data, databytes);
-      this.encipher(d);
-      this.S[i][k]   = d[0];
-      this.S[i][k+1] = d[1];
-    }
-  }
-  BLF_J = 0;
-};
-
-Blowfish.prototype.enc = function(data, blocks) {
-  for (var i = 0; i < blocks; i++) {
-    this.encipher(data.subarray(i*2));
-  }
-};
-
-Blowfish.prototype.dec = function(data, blocks) {
-  for (var i = 0; i < blocks; i++) {
-    this.decipher(data.subarray(i*2));
-  }
-};
-
-var BCRYPT_BLOCKS = 8,
-    BCRYPT_HASHSIZE = 32;
-
-function bcrypt_hash(sha2pass, sha2salt, out) {
-  var state = new Blowfish(),
-      cdata = new Uint32Array(BCRYPT_BLOCKS), i,
-      ciphertext = new Uint8Array([79,120,121,99,104,114,111,109,97,116,105,
-            99,66,108,111,119,102,105,115,104,83,119,97,116,68,121,110,97,109,
-            105,116,101]); //"OxychromaticBlowfishSwatDynamite"
-
-  state.expandstate(sha2salt, 64, sha2pass, 64);
-  for (i = 0; i < 64; i++) {
-    state.expand0state(sha2salt, 64);
-    state.expand0state(sha2pass, 64);
-  }
-
-  for (i = 0; i < BCRYPT_BLOCKS; i++)
-    cdata[i] = stream2word(ciphertext, ciphertext.byteLength);
-  for (i = 0; i < 64; i++)
-    state.enc(cdata, cdata.byteLength / 8);
-
-  for (i = 0; i < BCRYPT_BLOCKS; i++) {
-    out[4*i+3] = cdata[i] >>> 24;
-    out[4*i+2] = cdata[i] >>> 16;
-    out[4*i+1] = cdata[i] >>> 8;
-    out[4*i+0] = cdata[i];
-  }
-};
-
-function bcrypt_pbkdf(pass, passlen, salt, saltlen, key, keylen, rounds) {
-  var sha2pass = new Uint8Array(64),
-      sha2salt = new Uint8Array(64),
-      out = new Uint8Array(BCRYPT_HASHSIZE),
-      tmpout = new Uint8Array(BCRYPT_HASHSIZE),
-      countsalt = new Uint8Array(saltlen+4),
-      i, j, amt, stride, dest, count,
-      origkeylen = keylen;
-
-  if (rounds < 1)
-    return -1;
-  if (passlen === 0 || saltlen === 0 || keylen === 0 ||
-      keylen > (out.byteLength * out.byteLength) || saltlen > (1<<20))
-    return -1;
-
-  stride = Math.floor((keylen + out.byteLength - 1) / out.byteLength);
-  amt = Math.floor((keylen + stride - 1) / stride);
-
-  for (i = 0; i < saltlen; i++)
-    countsalt[i] = salt[i];
-
-  crypto_hash_sha512(sha2pass, pass, passlen);
-
-  for (count = 1; keylen > 0; count++) {
-    countsalt[saltlen+0] = count >>> 24;
-    countsalt[saltlen+1] = count >>> 16;
-    countsalt[saltlen+2] = count >>>  8;
-    countsalt[saltlen+3] = count;
-
-    crypto_hash_sha512(sha2salt, countsalt, saltlen + 4);
-    bcrypt_hash(sha2pass, sha2salt, tmpout);
-    for (i = out.byteLength; i--;)
-      out[i] = tmpout[i];
-
-    for (i = 1; i < rounds; i++) {
-      crypto_hash_sha512(sha2salt, tmpout, tmpout.byteLength);
-      bcrypt_hash(sha2pass, sha2salt, tmpout);
-      for (j = 0; j < out.byteLength; j++)
-        out[j] ^= tmpout[j];
-    }
-
-    amt = Math.min(amt, keylen);
-    for (i = 0; i < amt; i++) {
-      dest = i * stride + (count - 1);
-      if (dest >= origkeylen)
-        break;
-      key[dest] = out[i];
-    }
-    keylen -= i;
-  }
-
-  return 0;
-};
-
-module.exports = {
-      BLOCKS: BCRYPT_BLOCKS,
-      HASHSIZE: BCRYPT_HASHSIZE,
-      hash: bcrypt_hash,
-      pbkdf: bcrypt_pbkdf
-};
-
-
-/***/ }),
-/* 380 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var bufferFill = __webpack_require__(594)
-var allocUnsafe = __webpack_require__(593)
-
-module.exports = function alloc (size, fill, encoding) {
-  if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be a number')
-  }
-
-  if (size < 0) {
-    throw new RangeError('"size" argument must not be negative')
-  }
-
-  if (Buffer.alloc) {
-    return Buffer.alloc(size, fill, encoding)
-  }
-
-  var buffer = allocUnsafe(size)
-
-  if (size === 0) {
-    return buffer
-  }
-
-  if (fill === undefined) {
-    return bufferFill(buffer, 0)
-  }
-
-  if (typeof encoding !== 'string') {
-    encoding = undefined
-  }
-
-  return bufferFill(buffer, fill, encoding)
-}
-
-
-/***/ }),
-/* 381 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const restoreCursor = __webpack_require__(818);
-
-let hidden = false;
-
-exports.show = stream => {
-	const s = stream || process.stderr;
-
-	if (!s.isTTY) {
-		return;
-	}
-
-	hidden = false;
-	s.write('\u001b[?25h');
-};
-
-exports.hide = stream => {
-	const s = stream || process.stderr;
-
-	if (!s.isTTY) {
-		return;
-	}
-
-	restoreCursor();
-	hidden = true;
-	s.write('\u001b[?25l');
-};
-
-exports.toggle = (force, stream) => {
-	if (force !== undefined) {
-		hidden = force;
-	}
-
-	if (hidden) {
-		exports.show(stream);
-	} else {
-		exports.hide(stream);
-	}
-};
-
-
-/***/ }),
-/* 382 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var objectAssign = __webpack_require__(303);
-var stringWidth = __webpack_require__(945);
-
-function codeRegex(capture){
-  return capture ? /\u001b\[((?:\d*;){0,5}\d*)m/g : /\u001b\[(?:\d*;){0,5}\d*m/g
-}
-
-function strlen(str){
-  var code = codeRegex();
-  var stripped = ("" + str).replace(code,'');
-  var split = stripped.split("\n");
-  return split.reduce(function (memo, s) { return (stringWidth(s) > memo) ? stringWidth(s) : memo }, 0);
-}
-
-function repeat(str,times){
-  return Array(times + 1).join(str);
-}
-
-function pad(str, len, pad, dir) {
-  var length = strlen(str);
-  if (len + 1 >= length) {
-    var padlen = len - length;
-    switch (dir) {
-      case 'right':
-        str = repeat(pad, padlen) + str;
-        break;
-
-      case 'center':
-        var right = Math.ceil((padlen) / 2);
-        var left = padlen - right;
-        str = repeat(pad, left) + str + repeat(pad, right);
-        break;
-
-      default :
-        str = str + repeat(pad,padlen);
-        break;
-    }
-  }
-  return str;
-}
-
-var codeCache = {};
-
-function addToCodeCache(name,on,off){
-  on = '\u001b[' + on + 'm';
-  off = '\u001b[' + off + 'm';
-  codeCache[on] = {set:name,to:true};
-  codeCache[off] = {set:name,to:false};
-  codeCache[name] = {on:on,off:off};
-}
-
-//https://github.com/Marak/colors.js/blob/master/lib/styles.js
-addToCodeCache('bold', 1, 22);
-addToCodeCache('italics', 3, 23);
-addToCodeCache('underline', 4, 24);
-addToCodeCache('inverse', 7, 27);
-addToCodeCache('strikethrough', 9, 29);
-
-
-function updateState(state, controlChars){
-  var controlCode = controlChars[1] ? parseInt(controlChars[1].split(';')[0]) : 0;
-  if ( (controlCode >= 30 && controlCode <= 39)
-     || (controlCode >= 90 && controlCode <= 97)
-  ) {
-    state.lastForegroundAdded = controlChars[0];
-    return;
-  }
-  if ( (controlCode >= 40 && controlCode <= 49)
-     || (controlCode >= 100 && controlCode <= 107)
-  ) {
-    state.lastBackgroundAdded = controlChars[0];
-    return;
-  }
-  if (controlCode === 0) {
-    for (var i in state) {
-      /* istanbul ignore else */
-      if (state.hasOwnProperty(i)) {
-        delete state[i];
-      }
-    }
-    return;
-  }
-  var info = codeCache[controlChars[0]];
-  if (info) {
-    state[info.set] = info.to;
-  }
-}
-
-function readState(line){
-  var code = codeRegex(true);
-  var controlChars = code.exec(line);
-  var state = {};
-  while(controlChars !== null){
-    updateState(state, controlChars);
-    controlChars = code.exec(line);
-  }
-  return state;
-}
-
-function unwindState(state,ret){
-  var lastBackgroundAdded = state.lastBackgroundAdded;
-  var lastForegroundAdded = state.lastForegroundAdded;
-
-  delete state.lastBackgroundAdded;
-  delete state.lastForegroundAdded;
-
-  Object.keys(state).forEach(function(key){
-    if(state[key]){
-      ret += codeCache[key].off;
-    }
-  });
-
-  if(lastBackgroundAdded && (lastBackgroundAdded != '\u001b[49m')){
-    ret += '\u001b[49m';
-  }
-  if(lastForegroundAdded && (lastForegroundAdded != '\u001b[39m')){
-    ret += '\u001b[39m';
-  }
-
-  return ret;
-}
-
-function rewindState(state,ret){
-  var lastBackgroundAdded = state.lastBackgroundAdded;
-  var lastForegroundAdded = state.lastForegroundAdded;
-
-  delete state.lastBackgroundAdded;
-  delete state.lastForegroundAdded;
-
-  Object.keys(state).forEach(function(key){
-    if(state[key]){
-      ret = codeCache[key].on + ret;
-    }
-  });
-
-  if(lastBackgroundAdded && (lastBackgroundAdded != '\u001b[49m')){
-    ret = lastBackgroundAdded + ret;
-  }
-  if(lastForegroundAdded && (lastForegroundAdded != '\u001b[39m')){
-    ret = lastForegroundAdded + ret;
-  }
-
-  return ret;
-}
-
-function truncateWidth(str, desiredLength){
-  if (str.length === strlen(str)) {
-    return str.substr(0, desiredLength);
-  }
-
-  while (strlen(str) > desiredLength){
-    str = str.slice(0, -1);
-  }
-
-  return str;
-}
-
-function truncateWidthWithAnsi(str, desiredLength){
-  var code = codeRegex(true);
-  var split = str.split(codeRegex());
-  var splitIndex = 0;
-  var retLen = 0;
-  var ret = '';
-  var myArray;
-  var state = {};
-
-  while(retLen < desiredLength){
-    myArray = code.exec(str);
-    var toAdd = split[splitIndex];
-    splitIndex++;
-    if (retLen + strlen(toAdd) > desiredLength){
-      toAdd = truncateWidth(toAdd, desiredLength - retLen);
-    }
-    ret += toAdd;
-    retLen += strlen(toAdd);
-
-    if(retLen < desiredLength){
-      if (!myArray) { break; }  // full-width chars may cause a whitespace which cannot be filled
-      ret += myArray[0];
-      updateState(state,myArray);
-    }
-  }
-
-  return unwindState(state,ret);
-}
-
-function truncate(str, desiredLength, truncateChar){
-  truncateChar = truncateChar || '…';
-  var lengthOfStr = strlen(str);
-  if(lengthOfStr <= desiredLength){
-    return str;
-  }
-  desiredLength -= strlen(truncateChar);
-
-  var ret = truncateWidthWithAnsi(str, desiredLength);
-
-  return ret + truncateChar;
-}
-
-
-function defaultOptions(){
-  return{
-    chars: {
-      'top': '─'
-      , 'top-mid': '┬'
-      , 'top-left': '┌'
-      , 'top-right': '┐'
-      , 'bottom': '─'
-      , 'bottom-mid': '┴'
-      , 'bottom-left': '└'
-      , 'bottom-right': '┘'
-      , 'left': '│'
-      , 'left-mid': '├'
-      , 'mid': '─'
-      , 'mid-mid': '┼'
-      , 'right': '│'
-      , 'right-mid': '┤'
-      , 'middle': '│'
-    }
-    , truncate: '…'
-    , colWidths: []
-    , rowHeights: []
-    , colAligns: []
-    , rowAligns: []
-    , style: {
-      'padding-left': 1
-      , 'padding-right': 1
-      , head: ['red']
-      , border: ['grey']
-      , compact : false
-    }
-    , head: []
-  };
-}
-
-function mergeOptions(options,defaults){
-  options = options || {};
-  defaults = defaults || defaultOptions();
-  var ret = objectAssign({}, defaults, options);
-  ret.chars = objectAssign({}, defaults.chars, options.chars);
-  ret.style = objectAssign({}, defaults.style, options.style);
-  return ret;
-}
-
-function wordWrap(maxLength,input){
-  var lines = [];
-  var split = input.split(/(\s+)/g);
-  var line = [];
-  var lineLength = 0;
-  var whitespace;
-  for (var i = 0; i < split.length; i += 2) {
-    var word = split[i];
-    var newLength = lineLength + strlen(word);
-    if (lineLength > 0 && whitespace) {
-      newLength += whitespace.length;
-    }
-    if(newLength > maxLength){
-      if(lineLength !== 0){
-        lines.push(line.join(''));
-      }
-      line = [word];
-      lineLength = strlen(word);
-    } else {
-      line.push(whitespace || '', word);
-      lineLength = newLength;
-    }
-    whitespace = split[i+1];
-  }
-  if(lineLength){
-    lines.push(line.join(''));
-  }
-  return lines;
-}
-
-function multiLineWordWrap(maxLength, input){
-  var output = [];
-  input = input.split('\n');
-  for(var i = 0; i < input.length; i++){
-    output.push.apply(output,wordWrap(maxLength,input[i]));
-  }
-  return output;
-}
-
-function colorizeLines(input){
-  var state = {};
-  var output = [];
-  for(var i = 0; i < input.length; i++){
-    var line = rewindState(state,input[i]) ;
-    state = readState(line);
-    var temp = objectAssign({},state);
-    output.push(unwindState(temp,line));
-  }
-  return output;
-}
-
-module.exports = {
-  strlen:strlen,
-  repeat:repeat,
-  pad:pad,
-  truncate:truncate,
-  mergeOptions:mergeOptions,
-  wordWrap:multiLineWordWrap,
-  colorizeLines:colorizeLines
-};
-
-
-/***/ }),
-/* 383 */
-/***/ (function(module, exports) {
-
-
-/**
- * slice() reference.
- */
-
-var slice = Array.prototype.slice;
-
-/**
- * Expose `co`.
- */
-
-module.exports = co['default'] = co.co = co;
-
-/**
- * Wrap the given generator `fn` into a
- * function that returns a promise.
- * This is a separate function so that
- * every `co()` call doesn't create a new,
- * unnecessary closure.
- *
- * @param {GeneratorFunction} fn
- * @return {Function}
- * @api public
- */
-
-co.wrap = function (fn) {
-  createPromise.__generatorFunction__ = fn;
-  return createPromise;
-  function createPromise() {
-    return co.call(this, fn.apply(this, arguments));
-  }
-};
-
-/**
- * Execute the generator function or a generator
- * and return a promise.
- *
- * @param {Function} fn
- * @return {Promise}
- * @api public
- */
-
-function co(gen) {
-  var ctx = this;
-  var args = slice.call(arguments, 1)
-
-  // we wrap everything in a promise to avoid promise chaining,
-  // which leads to memory leak errors.
-  // see https://github.com/tj/co/issues/180
-  return new Promise(function(resolve, reject) {
-    if (typeof gen === 'function') gen = gen.apply(ctx, args);
-    if (!gen || typeof gen.next !== 'function') return resolve(gen);
-
-    onFulfilled();
-
-    /**
-     * @param {Mixed} res
-     * @return {Promise}
-     * @api private
-     */
-
-    function onFulfilled(res) {
-      var ret;
-      try {
-        ret = gen.next(res);
-      } catch (e) {
-        return reject(e);
-      }
-      next(ret);
-    }
-
-    /**
-     * @param {Error} err
-     * @return {Promise}
-     * @api private
-     */
-
-    function onRejected(err) {
-      var ret;
-      try {
-        ret = gen.throw(err);
-      } catch (e) {
-        return reject(e);
-      }
-      next(ret);
-    }
-
-    /**
-     * Get the next value in the generator,
-     * return a promise.
-     *
-     * @param {Object} ret
-     * @return {Promise}
-     * @api private
-     */
-
-    function next(ret) {
-      if (ret.done) return resolve(ret.value);
-      var value = toPromise.call(ctx, ret.value);
-      if (value && isPromise(value)) return value.then(onFulfilled, onRejected);
-      return onRejected(new TypeError('You may only yield a function, promise, generator, array, or object, '
-        + 'but the following object was passed: "' + String(ret.value) + '"'));
-    }
-  });
-}
-
-/**
- * Convert a `yield`ed value into a promise.
- *
- * @param {Mixed} obj
- * @return {Promise}
- * @api private
- */
-
-function toPromise(obj) {
-  if (!obj) return obj;
-  if (isPromise(obj)) return obj;
-  if (isGeneratorFunction(obj) || isGenerator(obj)) return co.call(this, obj);
-  if ('function' == typeof obj) return thunkToPromise.call(this, obj);
-  if (Array.isArray(obj)) return arrayToPromise.call(this, obj);
-  if (isObject(obj)) return objectToPromise.call(this, obj);
-  return obj;
-}
-
-/**
- * Convert a thunk to a promise.
- *
- * @param {Function}
- * @return {Promise}
- * @api private
- */
-
-function thunkToPromise(fn) {
-  var ctx = this;
-  return new Promise(function (resolve, reject) {
-    fn.call(ctx, function (err, res) {
-      if (err) return reject(err);
-      if (arguments.length > 2) res = slice.call(arguments, 1);
-      resolve(res);
-    });
-  });
-}
-
-/**
- * Convert an array of "yieldables" to a promise.
- * Uses `Promise.all()` internally.
- *
- * @param {Array} obj
- * @return {Promise}
- * @api private
- */
-
-function arrayToPromise(obj) {
-  return Promise.all(obj.map(toPromise, this));
-}
-
-/**
- * Convert an object of "yieldables" to a promise.
- * Uses `Promise.all()` internally.
- *
- * @param {Object} obj
- * @return {Promise}
- * @api private
- */
-
-function objectToPromise(obj){
-  var results = new obj.constructor();
-  var keys = Object.keys(obj);
-  var promises = [];
-  for (var i = 0; i < keys.length; i++) {
-    var key = keys[i];
-    var promise = toPromise.call(this, obj[key]);
-    if (promise && isPromise(promise)) defer(promise, key);
-    else results[key] = obj[key];
-  }
-  return Promise.all(promises).then(function () {
-    return results;
-  });
-
-  function defer(promise, key) {
-    // predefine the key in the result
-    results[key] = undefined;
-    promises.push(promise.then(function (res) {
-      results[key] = res;
-    }));
-  }
-}
-
-/**
- * Check if `obj` is a promise.
- *
- * @param {Object} obj
- * @return {Boolean}
- * @api private
- */
-
-function isPromise(obj) {
-  return 'function' == typeof obj.then;
-}
-
-/**
- * Check if `obj` is a generator.
- *
- * @param {Mixed} obj
- * @return {Boolean}
- * @api private
- */
-
-function isGenerator(obj) {
-  return 'function' == typeof obj.next && 'function' == typeof obj.throw;
-}
-
-/**
- * Check if `obj` is a generator function.
- *
- * @param {Mixed} obj
- * @return {Boolean}
- * @api private
- */
-function isGeneratorFunction(obj) {
-  var constructor = obj.constructor;
-  if (!constructor) return false;
-  if ('GeneratorFunction' === constructor.name || 'GeneratorFunction' === constructor.displayName) return true;
-  return isGenerator(constructor.prototype);
-}
-
-/**
- * Check for plain object.
- *
- * @param {Mixed} val
- * @return {Boolean}
- * @api private
- */
-
-function isObject(val) {
-  return Object == val.constructor;
-}
-
-
-/***/ }),
-/* 384 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* MIT license */
-var cssKeywords = __webpack_require__(610);
-
-// NOTE: conversions should only return primitive values (i.e. arrays, or
-//       values that give correct `typeof` results).
-//       do not use box values types (i.e. Number(), String(), etc.)
-
-var reverseKeywords = {};
-for (var key in cssKeywords) {
-	if (cssKeywords.hasOwnProperty(key)) {
-		reverseKeywords[cssKeywords[key]] = key;
-	}
-}
-
-var convert = module.exports = {
-	rgb: {channels: 3, labels: 'rgb'},
-	hsl: {channels: 3, labels: 'hsl'},
-	hsv: {channels: 3, labels: 'hsv'},
-	hwb: {channels: 3, labels: 'hwb'},
-	cmyk: {channels: 4, labels: 'cmyk'},
-	xyz: {channels: 3, labels: 'xyz'},
-	lab: {channels: 3, labels: 'lab'},
-	lch: {channels: 3, labels: 'lch'},
-	hex: {channels: 1, labels: ['hex']},
-	keyword: {channels: 1, labels: ['keyword']},
-	ansi16: {channels: 1, labels: ['ansi16']},
-	ansi256: {channels: 1, labels: ['ansi256']},
-	hcg: {channels: 3, labels: ['h', 'c', 'g']},
-	apple: {channels: 3, labels: ['r16', 'g16', 'b16']},
-	gray: {channels: 1, labels: ['gray']}
-};
-
-// hide .channels and .labels properties
-for (var model in convert) {
-	if (convert.hasOwnProperty(model)) {
-		if (!('channels' in convert[model])) {
-			throw new Error('missing channels property: ' + model);
-		}
-
-		if (!('labels' in convert[model])) {
-			throw new Error('missing channel labels property: ' + model);
-		}
-
-		if (convert[model].labels.length !== convert[model].channels) {
-			throw new Error('channel and label counts mismatch: ' + model);
-		}
-
-		var channels = convert[model].channels;
-		var labels = convert[model].labels;
-		delete convert[model].channels;
-		delete convert[model].labels;
-		Object.defineProperty(convert[model], 'channels', {value: channels});
-		Object.defineProperty(convert[model], 'labels', {value: labels});
-	}
-}
-
-convert.rgb.hsl = function (rgb) {
-	var r = rgb[0] / 255;
-	var g = rgb[1] / 255;
-	var b = rgb[2] / 255;
-	var min = Math.min(r, g, b);
-	var max = Math.max(r, g, b);
-	var delta = max - min;
-	var h;
-	var s;
-	var l;
-
-	if (max === min) {
-		h = 0;
-	} else if (r === max) {
-		h = (g - b) / delta;
-	} else if (g === max) {
-		h = 2 + (b - r) / delta;
-	} else if (b === max) {
-		h = 4 + (r - g) / delta;
-	}
-
-	h = Math.min(h * 60, 360);
-
-	if (h < 0) {
-		h += 360;
-	}
-
-	l = (min + max) / 2;
-
-	if (max === min) {
-		s = 0;
-	} else if (l <= 0.5) {
-		s = delta / (max + min);
-	} else {
-		s = delta / (2 - max - min);
-	}
-
-	return [h, s * 100, l * 100];
-};
-
-convert.rgb.hsv = function (rgb) {
-	var rdif;
-	var gdif;
-	var bdif;
-	var h;
-	var s;
-
-	var r = rgb[0] / 255;
-	var g = rgb[1] / 255;
-	var b = rgb[2] / 255;
-	var v = Math.max(r, g, b);
-	var diff = v - Math.min(r, g, b);
-	var diffc = function (c) {
-		return (v - c) / 6 / diff + 1 / 2;
-	};
-
-	if (diff === 0) {
-		h = s = 0;
-	} else {
-		s = diff / v;
-		rdif = diffc(r);
-		gdif = diffc(g);
-		bdif = diffc(b);
-
-		if (r === v) {
-			h = bdif - gdif;
-		} else if (g === v) {
-			h = (1 / 3) + rdif - bdif;
-		} else if (b === v) {
-			h = (2 / 3) + gdif - rdif;
-		}
-		if (h < 0) {
-			h += 1;
-		} else if (h > 1) {
-			h -= 1;
-		}
-	}
-
-	return [
-		h * 360,
-		s * 100,
-		v * 100
-	];
-};
-
-convert.rgb.hwb = function (rgb) {
-	var r = rgb[0];
-	var g = rgb[1];
-	var b = rgb[2];
-	var h = convert.rgb.hsl(rgb)[0];
-	var w = 1 / 255 * Math.min(r, Math.min(g, b));
-
-	b = 1 - 1 / 255 * Math.max(r, Math.max(g, b));
-
-	return [h, w * 100, b * 100];
-};
-
-convert.rgb.cmyk = function (rgb) {
-	var r = rgb[0] / 255;
-	var g = rgb[1] / 255;
-	var b = rgb[2] / 255;
-	var c;
-	var m;
-	var y;
-	var k;
-
-	k = Math.min(1 - r, 1 - g, 1 - b);
-	c = (1 - r - k) / (1 - k) || 0;
-	m = (1 - g - k) / (1 - k) || 0;
-	y = (1 - b - k) / (1 - k) || 0;
-
-	return [c * 100, m * 100, y * 100, k * 100];
-};
-
-/**
- * See https://en.m.wikipedia.org/wiki/Euclidean_distance#Squared_Euclidean_distance
- * */
-function comparativeDistance(x, y) {
-	return (
-		Math.pow(x[0] - y[0], 2) +
-		Math.pow(x[1] - y[1], 2) +
-		Math.pow(x[2] - y[2], 2)
-	);
-}
-
-convert.rgb.keyword = function (rgb) {
-	var reversed = reverseKeywords[rgb];
-	if (reversed) {
-		return reversed;
-	}
-
-	var currentClosestDistance = Infinity;
-	var currentClosestKeyword;
-
-	for (var keyword in cssKeywords) {
-		if (cssKeywords.hasOwnProperty(keyword)) {
-			var value = cssKeywords[keyword];
-
-			// Compute comparative distance
-			var distance = comparativeDistance(rgb, value);
-
-			// Check if its less, if so set as closest
-			if (distance < currentClosestDistance) {
-				currentClosestDistance = distance;
-				currentClosestKeyword = keyword;
-			}
-		}
-	}
-
-	return currentClosestKeyword;
-};
-
-convert.keyword.rgb = function (keyword) {
-	return cssKeywords[keyword];
-};
-
-convert.rgb.xyz = function (rgb) {
-	var r = rgb[0] / 255;
-	var g = rgb[1] / 255;
-	var b = rgb[2] / 255;
-
-	// assume sRGB
-	r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
-	g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
-	b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);
-
-	var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
-	var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
-	var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);
-
-	return [x * 100, y * 100, z * 100];
-};
-
-convert.rgb.lab = function (rgb) {
-	var xyz = convert.rgb.xyz(rgb);
-	var x = xyz[0];
-	var y = xyz[1];
-	var z = xyz[2];
-	var l;
-	var a;
-	var b;
-
-	x /= 95.047;
-	y /= 100;
-	z /= 108.883;
-
-	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
-	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
-	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
-
-	l = (116 * y) - 16;
-	a = 500 * (x - y);
-	b = 200 * (y - z);
-
-	return [l, a, b];
-};
-
-convert.hsl.rgb = function (hsl) {
-	var h = hsl[0] / 360;
-	var s = hsl[1] / 100;
-	var l = hsl[2] / 100;
-	var t1;
-	var t2;
-	var t3;
-	var rgb;
-	var val;
-
-	if (s === 0) {
-		val = l * 255;
-		return [val, val, val];
-	}
-
-	if (l < 0.5) {
-		t2 = l * (1 + s);
-	} else {
-		t2 = l + s - l * s;
-	}
-
-	t1 = 2 * l - t2;
-
-	rgb = [0, 0, 0];
-	for (var i = 0; i < 3; i++) {
-		t3 = h + 1 / 3 * -(i - 1);
-		if (t3 < 0) {
-			t3++;
-		}
-		if (t3 > 1) {
-			t3--;
-		}
-
-		if (6 * t3 < 1) {
-			val = t1 + (t2 - t1) * 6 * t3;
-		} else if (2 * t3 < 1) {
-			val = t2;
-		} else if (3 * t3 < 2) {
-			val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
-		} else {
-			val = t1;
-		}
-
-		rgb[i] = val * 255;
-	}
-
-	return rgb;
-};
-
-convert.hsl.hsv = function (hsl) {
-	var h = hsl[0];
-	var s = hsl[1] / 100;
-	var l = hsl[2] / 100;
-	var smin = s;
-	var lmin = Math.max(l, 0.01);
-	var sv;
-	var v;
-
-	l *= 2;
-	s *= (l <= 1) ? l : 2 - l;
-	smin *= lmin <= 1 ? lmin : 2 - lmin;
-	v = (l + s) / 2;
-	sv = l === 0 ? (2 * smin) / (lmin + smin) : (2 * s) / (l + s);
-
-	return [h, sv * 100, v * 100];
-};
-
-convert.hsv.rgb = function (hsv) {
-	var h = hsv[0] / 60;
-	var s = hsv[1] / 100;
-	var v = hsv[2] / 100;
-	var hi = Math.floor(h) % 6;
-
-	var f = h - Math.floor(h);
-	var p = 255 * v * (1 - s);
-	var q = 255 * v * (1 - (s * f));
-	var t = 255 * v * (1 - (s * (1 - f)));
-	v *= 255;
-
-	switch (hi) {
-		case 0:
-			return [v, t, p];
-		case 1:
-			return [q, v, p];
-		case 2:
-			return [p, v, t];
-		case 3:
-			return [p, q, v];
-		case 4:
-			return [t, p, v];
-		case 5:
-			return [v, p, q];
-	}
-};
-
-convert.hsv.hsl = function (hsv) {
-	var h = hsv[0];
-	var s = hsv[1] / 100;
-	var v = hsv[2] / 100;
-	var vmin = Math.max(v, 0.01);
-	var lmin;
-	var sl;
-	var l;
-
-	l = (2 - s) * v;
-	lmin = (2 - s) * vmin;
-	sl = s * vmin;
-	sl /= (lmin <= 1) ? lmin : 2 - lmin;
-	sl = sl || 0;
-	l /= 2;
-
-	return [h, sl * 100, l * 100];
-};
-
-// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
-convert.hwb.rgb = function (hwb) {
-	var h = hwb[0] / 360;
-	var wh = hwb[1] / 100;
-	var bl = hwb[2] / 100;
-	var ratio = wh + bl;
-	var i;
-	var v;
-	var f;
-	var n;
-
-	// wh + bl cant be > 1
-	if (ratio > 1) {
-		wh /= ratio;
-		bl /= ratio;
-	}
-
-	i = Math.floor(6 * h);
-	v = 1 - bl;
-	f = 6 * h - i;
-
-	if ((i & 0x01) !== 0) {
-		f = 1 - f;
-	}
-
-	n = wh + f * (v - wh); // linear interpolation
-
-	var r;
-	var g;
-	var b;
-	switch (i) {
-		default:
-		case 6:
-		case 0: r = v; g = n; b = wh; break;
-		case 1: r = n; g = v; b = wh; break;
-		case 2: r = wh; g = v; b = n; break;
-		case 3: r = wh; g = n; b = v; break;
-		case 4: r = n; g = wh; b = v; break;
-		case 5: r = v; g = wh; b = n; break;
-	}
-
-	return [r * 255, g * 255, b * 255];
-};
-
-convert.cmyk.rgb = function (cmyk) {
-	var c = cmyk[0] / 100;
-	var m = cmyk[1] / 100;
-	var y = cmyk[2] / 100;
-	var k = cmyk[3] / 100;
-	var r;
-	var g;
-	var b;
-
-	r = 1 - Math.min(1, c * (1 - k) + k);
-	g = 1 - Math.min(1, m * (1 - k) + k);
-	b = 1 - Math.min(1, y * (1 - k) + k);
-
-	return [r * 255, g * 255, b * 255];
-};
-
-convert.xyz.rgb = function (xyz) {
-	var x = xyz[0] / 100;
-	var y = xyz[1] / 100;
-	var z = xyz[2] / 100;
-	var r;
-	var g;
-	var b;
-
-	r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
-	g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
-	b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);
-
-	// assume sRGB
-	r = r > 0.0031308
-		? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
-		: r * 12.92;
-
-	g = g > 0.0031308
-		? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
-		: g * 12.92;
-
-	b = b > 0.0031308
-		? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
-		: b * 12.92;
-
-	r = Math.min(Math.max(0, r), 1);
-	g = Math.min(Math.max(0, g), 1);
-	b = Math.min(Math.max(0, b), 1);
-
-	return [r * 255, g * 255, b * 255];
-};
-
-convert.xyz.lab = function (xyz) {
-	var x = xyz[0];
-	var y = xyz[1];
-	var z = xyz[2];
-	var l;
-	var a;
-	var b;
-
-	x /= 95.047;
-	y /= 100;
-	z /= 108.883;
-
-	x = x > 0.008856 ? Math.pow(x, 1 / 3) : (7.787 * x) + (16 / 116);
-	y = y > 0.008856 ? Math.pow(y, 1 / 3) : (7.787 * y) + (16 / 116);
-	z = z > 0.008856 ? Math.pow(z, 1 / 3) : (7.787 * z) + (16 / 116);
-
-	l = (116 * y) - 16;
-	a = 500 * (x - y);
-	b = 200 * (y - z);
-
-	return [l, a, b];
-};
-
-convert.lab.xyz = function (lab) {
-	var l = lab[0];
-	var a = lab[1];
-	var b = lab[2];
-	var x;
-	var y;
-	var z;
-
-	y = (l + 16) / 116;
-	x = a / 500 + y;
-	z = y - b / 200;
-
-	var y2 = Math.pow(y, 3);
-	var x2 = Math.pow(x, 3);
-	var z2 = Math.pow(z, 3);
-	y = y2 > 0.008856 ? y2 : (y - 16 / 116) / 7.787;
-	x = x2 > 0.008856 ? x2 : (x - 16 / 116) / 7.787;
-	z = z2 > 0.008856 ? z2 : (z - 16 / 116) / 7.787;
-
-	x *= 95.047;
-	y *= 100;
-	z *= 108.883;
-
-	return [x, y, z];
-};
-
-convert.lab.lch = function (lab) {
-	var l = lab[0];
-	var a = lab[1];
-	var b = lab[2];
-	var hr;
-	var h;
-	var c;
-
-	hr = Math.atan2(b, a);
-	h = hr * 360 / 2 / Math.PI;
-
-	if (h < 0) {
-		h += 360;
-	}
-
-	c = Math.sqrt(a * a + b * b);
-
-	return [l, c, h];
-};
-
-convert.lch.lab = function (lch) {
-	var l = lch[0];
-	var c = lch[1];
-	var h = lch[2];
-	var a;
-	var b;
-	var hr;
-
-	hr = h / 360 * 2 * Math.PI;
-	a = c * Math.cos(hr);
-	b = c * Math.sin(hr);
-
-	return [l, a, b];
-};
-
-convert.rgb.ansi16 = function (args) {
-	var r = args[0];
-	var g = args[1];
-	var b = args[2];
-	var value = 1 in arguments ? arguments[1] : convert.rgb.hsv(args)[2]; // hsv -> ansi16 optimization
-
-	value = Math.round(value / 50);
-
-	if (value === 0) {
-		return 30;
-	}
-
-	var ansi = 30
-		+ ((Math.round(b / 255) << 2)
-		| (Math.round(g / 255) << 1)
-		| Math.round(r / 255));
-
-	if (value === 2) {
-		ansi += 60;
-	}
-
-	return ansi;
-};
-
-convert.hsv.ansi16 = function (args) {
-	// optimization here; we already know the value and don't need to get
-	// it converted for us.
-	return convert.rgb.ansi16(convert.hsv.rgb(args), args[2]);
-};
-
-convert.rgb.ansi256 = function (args) {
-	var r = args[0];
-	var g = args[1];
-	var b = args[2];
-
-	// we use the extended greyscale palette here, with the exception of
-	// black and white. normal palette only has 4 greyscale shades.
-	if (r === g && g === b) {
-		if (r < 8) {
-			return 16;
-		}
-
-		if (r > 248) {
-			return 231;
-		}
-
-		return Math.round(((r - 8) / 247) * 24) + 232;
-	}
-
-	var ansi = 16
-		+ (36 * Math.round(r / 255 * 5))
-		+ (6 * Math.round(g / 255 * 5))
-		+ Math.round(b / 255 * 5);
-
-	return ansi;
-};
-
-convert.ansi16.rgb = function (args) {
-	var color = args % 10;
-
-	// handle greyscale
-	if (color === 0 || color === 7) {
-		if (args > 50) {
-			color += 3.5;
-		}
-
-		color = color / 10.5 * 255;
-
-		return [color, color, color];
-	}
-
-	var mult = (~~(args > 50) + 1) * 0.5;
-	var r = ((color & 1) * mult) * 255;
-	var g = (((color >> 1) & 1) * mult) * 255;
-	var b = (((color >> 2) & 1) * mult) * 255;
-
-	return [r, g, b];
-};
-
-convert.ansi256.rgb = function (args) {
-	// handle greyscale
-	if (args >= 232) {
-		var c = (args - 232) * 10 + 8;
-		return [c, c, c];
-	}
-
-	args -= 16;
-
-	var rem;
-	var r = Math.floor(args / 36) / 5 * 255;
-	var g = Math.floor((rem = args % 36) / 6) / 5 * 255;
-	var b = (rem % 6) / 5 * 255;
-
-	return [r, g, b];
-};
-
-convert.rgb.hex = function (args) {
-	var integer = ((Math.round(args[0]) & 0xFF) << 16)
-		+ ((Math.round(args[1]) & 0xFF) << 8)
-		+ (Math.round(args[2]) & 0xFF);
-
-	var string = integer.toString(16).toUpperCase();
-	return '000000'.substring(string.length) + string;
-};
-
-convert.hex.rgb = function (args) {
-	var match = args.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);
-	if (!match) {
-		return [0, 0, 0];
-	}
-
-	var colorString = match[0];
-
-	if (match[0].length === 3) {
-		colorString = colorString.split('').map(function (char) {
-			return char + char;
-		}).join('');
-	}
-
-	var integer = parseInt(colorString, 16);
-	var r = (integer >> 16) & 0xFF;
-	var g = (integer >> 8) & 0xFF;
-	var b = integer & 0xFF;
-
-	return [r, g, b];
-};
-
-convert.rgb.hcg = function (rgb) {
-	var r = rgb[0] / 255;
-	var g = rgb[1] / 255;
-	var b = rgb[2] / 255;
-	var max = Math.max(Math.max(r, g), b);
-	var min = Math.min(Math.min(r, g), b);
-	var chroma = (max - min);
-	var grayscale;
-	var hue;
-
-	if (chroma < 1) {
-		grayscale = min / (1 - chroma);
-	} else {
-		grayscale = 0;
-	}
-
-	if (chroma <= 0) {
-		hue = 0;
-	} else
-	if (max === r) {
-		hue = ((g - b) / chroma) % 6;
-	} else
-	if (max === g) {
-		hue = 2 + (b - r) / chroma;
-	} else {
-		hue = 4 + (r - g) / chroma + 4;
-	}
-
-	hue /= 6;
-	hue %= 1;
-
-	return [hue * 360, chroma * 100, grayscale * 100];
-};
-
-convert.hsl.hcg = function (hsl) {
-	var s = hsl[1] / 100;
-	var l = hsl[2] / 100;
-	var c = 1;
-	var f = 0;
-
-	if (l < 0.5) {
-		c = 2.0 * s * l;
-	} else {
-		c = 2.0 * s * (1.0 - l);
-	}
-
-	if (c < 1.0) {
-		f = (l - 0.5 * c) / (1.0 - c);
-	}
-
-	return [hsl[0], c * 100, f * 100];
-};
-
-convert.hsv.hcg = function (hsv) {
-	var s = hsv[1] / 100;
-	var v = hsv[2] / 100;
-
-	var c = s * v;
-	var f = 0;
-
-	if (c < 1.0) {
-		f = (v - c) / (1 - c);
-	}
-
-	return [hsv[0], c * 100, f * 100];
-};
-
-convert.hcg.rgb = function (hcg) {
-	var h = hcg[0] / 360;
-	var c = hcg[1] / 100;
-	var g = hcg[2] / 100;
-
-	if (c === 0.0) {
-		return [g * 255, g * 255, g * 255];
-	}
-
-	var pure = [0, 0, 0];
-	var hi = (h % 1) * 6;
-	var v = hi % 1;
-	var w = 1 - v;
-	var mg = 0;
-
-	switch (Math.floor(hi)) {
-		case 0:
-			pure[0] = 1; pure[1] = v; pure[2] = 0; break;
-		case 1:
-			pure[0] = w; pure[1] = 1; pure[2] = 0; break;
-		case 2:
-			pure[0] = 0; pure[1] = 1; pure[2] = v; break;
-		case 3:
-			pure[0] = 0; pure[1] = w; pure[2] = 1; break;
-		case 4:
-			pure[0] = v; pure[1] = 0; pure[2] = 1; break;
-		default:
-			pure[0] = 1; pure[1] = 0; pure[2] = w;
-	}
-
-	mg = (1.0 - c) * g;
-
-	return [
-		(c * pure[0] + mg) * 255,
-		(c * pure[1] + mg) * 255,
-		(c * pure[2] + mg) * 255
-	];
-};
-
-convert.hcg.hsv = function (hcg) {
-	var c = hcg[1] / 100;
-	var g = hcg[2] / 100;
-
-	var v = c + g * (1.0 - c);
-	var f = 0;
-
-	if (v > 0.0) {
-		f = c / v;
-	}
-
-	return [hcg[0], f * 100, v * 100];
-};
-
-convert.hcg.hsl = function (hcg) {
-	var c = hcg[1] / 100;
-	var g = hcg[2] / 100;
-
-	var l = g * (1.0 - c) + 0.5 * c;
-	var s = 0;
-
-	if (l > 0.0 && l < 0.5) {
-		s = c / (2 * l);
-	} else
-	if (l >= 0.5 && l < 1.0) {
-		s = c / (2 * (1 - l));
-	}
-
-	return [hcg[0], s * 100, l * 100];
-};
-
-convert.hcg.hwb = function (hcg) {
-	var c = hcg[1] / 100;
-	var g = hcg[2] / 100;
-	var v = c + g * (1.0 - c);
-	return [hcg[0], (v - c) * 100, (1 - v) * 100];
-};
-
-convert.hwb.hcg = function (hwb) {
-	var w = hwb[1] / 100;
-	var b = hwb[2] / 100;
-	var v = 1 - b;
-	var c = v - w;
-	var g = 0;
-
-	if (c < 1) {
-		g = (v - c) / (1 - c);
-	}
-
-	return [hwb[0], c * 100, g * 100];
-};
-
-convert.apple.rgb = function (apple) {
-	return [(apple[0] / 65535) * 255, (apple[1] / 65535) * 255, (apple[2] / 65535) * 255];
-};
-
-convert.rgb.apple = function (rgb) {
-	return [(rgb[0] / 255) * 65535, (rgb[1] / 255) * 65535, (rgb[2] / 255) * 65535];
-};
-
-convert.gray.rgb = function (args) {
-	return [args[0] / 100 * 255, args[0] / 100 * 255, args[0] / 100 * 255];
-};
-
-convert.gray.hsl = convert.gray.hsv = function (args) {
-	return [0, 0, args[0]];
-};
-
-convert.gray.hwb = function (gray) {
-	return [0, 100, gray[0]];
-};
-
-convert.gray.cmyk = function (gray) {
-	return [0, 0, 0, gray[0]];
-};
-
-convert.gray.lab = function (gray) {
-	return [gray[0], 0, 0];
-};
-
-convert.gray.hex = function (gray) {
-	var val = Math.round(gray[0] / 100 * 255) & 0xFF;
-	var integer = (val << 16) + (val << 8) + val;
-
-	var string = integer.toString(16).toUpperCase();
-	return '000000'.substring(string.length) + string;
-};
-
-convert.rgb.gray = function (rgb) {
-	var val = (rgb[0] + rgb[1] + rgb[2]) / 3;
-	return [val / 255 * 100];
-};
-
-
-/***/ }),
-/* 385 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var util = __webpack_require__(3);
-var Stream = __webpack_require__(23).Stream;
-var DelayedStream = __webpack_require__(634);
-var defer = __webpack_require__(622);
-
-module.exports = CombinedStream;
-function CombinedStream() {
-  this.writable = false;
-  this.readable = true;
-  this.dataSize = 0;
-  this.maxDataSize = 2 * 1024 * 1024;
-  this.pauseStreams = true;
-
-  this._released = false;
-  this._streams = [];
-  this._currentStream = null;
-}
-util.inherits(CombinedStream, Stream);
-
-CombinedStream.create = function(options) {
-  var combinedStream = new this();
-
-  options = options || {};
-  for (var option in options) {
-    combinedStream[option] = options[option];
-  }
-
-  return combinedStream;
-};
-
-CombinedStream.isStreamLike = function(stream) {
-  return (typeof stream !== 'function')
-    && (typeof stream !== 'string')
-    && (typeof stream !== 'boolean')
-    && (typeof stream !== 'number')
-    && (!Buffer.isBuffer(stream));
-};
-
-CombinedStream.prototype.append = function(stream) {
-  var isStreamLike = CombinedStream.isStreamLike(stream);
-
-  if (isStreamLike) {
-    if (!(stream instanceof DelayedStream)) {
-      var newStream = DelayedStream.create(stream, {
-        maxDataSize: Infinity,
-        pauseStream: this.pauseStreams,
-      });
-      stream.on('data', this._checkDataSize.bind(this));
-      stream = newStream;
-    }
-
-    this._handleErrors(stream);
-
-    if (this.pauseStreams) {
-      stream.pause();
-    }
-  }
-
-  this._streams.push(stream);
-  return this;
-};
-
-CombinedStream.prototype.pipe = function(dest, options) {
-  Stream.prototype.pipe.call(this, dest, options);
-  this.resume();
-  return dest;
-};
-
-CombinedStream.prototype._getNext = function() {
-  this._currentStream = null;
-  var stream = this._streams.shift();
-
-
-  if (typeof stream == 'undefined') {
-    this.end();
-    return;
-  }
-
-  if (typeof stream !== 'function') {
-    this._pipeNext(stream);
-    return;
-  }
-
-  var getStream = stream;
-  getStream(function(stream) {
-    var isStreamLike = CombinedStream.isStreamLike(stream);
-    if (isStreamLike) {
-      stream.on('data', this._checkDataSize.bind(this));
-      this._handleErrors(stream);
-    }
-
-    defer(this._pipeNext.bind(this, stream));
-  }.bind(this));
-};
-
-CombinedStream.prototype._pipeNext = function(stream) {
-  this._currentStream = stream;
-
-  var isStreamLike = CombinedStream.isStreamLike(stream);
-  if (isStreamLike) {
-    stream.on('end', this._getNext.bind(this));
-    stream.pipe(this, {end: false});
-    return;
-  }
-
-  var value = stream;
-  this.write(value);
-  this._getNext();
-};
-
-CombinedStream.prototype._handleErrors = function(stream) {
-  var self = this;
-  stream.on('error', function(err) {
-    self._emitError(err);
-  });
-};
-
-CombinedStream.prototype.write = function(data) {
-  this.emit('data', data);
-};
-
-CombinedStream.prototype.pause = function() {
-  if (!this.pauseStreams) {
-    return;
-  }
-
-  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.pause) == 'function') this._currentStream.pause();
-  this.emit('pause');
-};
-
-CombinedStream.prototype.resume = function() {
-  if (!this._released) {
-    this._released = true;
-    this.writable = true;
-    this._getNext();
-  }
-
-  if(this.pauseStreams && this._currentStream && typeof(this._currentStream.resume) == 'function') this._currentStream.resume();
-  this.emit('resume');
-};
-
-CombinedStream.prototype.end = function() {
-  this._reset();
-  this.emit('end');
-};
-
-CombinedStream.prototype.destroy = function() {
-  this._reset();
-  this.emit('close');
-};
-
-CombinedStream.prototype._reset = function() {
-  this.writable = false;
-  this._streams = [];
-  this._currentStream = null;
-};
-
-CombinedStream.prototype._checkDataSize = function() {
-  this._updateDataSize();
-  if (this.dataSize <= this.maxDataSize) {
-    return;
-  }
-
-  var message =
-    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.';
-  this._emitError(new Error(message));
-};
-
-CombinedStream.prototype._updateDataSize = function() {
-  this.dataSize = 0;
-
-  var self = this;
-  this._streams.forEach(function(stream) {
-    if (!stream.dataSize) {
-      return;
-    }
-
-    self.dataSize += stream.dataSize;
-  });
-
-  if (this._currentStream && this._currentStream.dataSize) {
-    this.dataSize += this._currentStream.dataSize;
-  }
-};
-
-CombinedStream.prototype._emitError = function(err) {
-  this._reset();
-  this.emit('error', err);
-};
-
-
-/***/ }),
-/* 386 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var stream = __webpack_require__(102)
-var eos = __webpack_require__(173)
-var inherits = __webpack_require__(61)
-var shift = __webpack_require__(942)
-
-var SIGNAL_FLUSH = (Buffer.from && Buffer.from !== Uint8Array.from)
-  ? Buffer.from([0])
-  : new Buffer([0])
-
-var onuncork = function(self, fn) {
-  if (self._corked) self.once('uncork', fn)
-  else fn()
-}
-
-var autoDestroy = function (self, err) {
-  if (self._autoDestroy) self.destroy(err)
-}
-
-var destroyer = function(self, end) {
-  return function(err) {
-    if (err) autoDestroy(self, err.message === 'premature close' ? null : err)
-    else if (end && !self._ended) self.end()
-  }
-}
-
-var end = function(ws, fn) {
-  if (!ws) return fn()
-  if (ws._writableState && ws._writableState.finished) return fn()
-  if (ws._writableState) return ws.end(fn)
-  ws.end()
-  fn()
-}
-
-var toStreams2 = function(rs) {
-  return new (stream.Readable)({objectMode:true, highWaterMark:16}).wrap(rs)
-}
-
-var Duplexify = function(writable, readable, opts) {
-  if (!(this instanceof Duplexify)) return new Duplexify(writable, readable, opts)
-  stream.Duplex.call(this, opts)
-
-  this._writable = null
-  this._readable = null
-  this._readable2 = null
-
-  this._autoDestroy = !opts || opts.autoDestroy !== false
-  this._forwardDestroy = !opts || opts.destroy !== false
-  this._forwardEnd = !opts || opts.end !== false
-  this._corked = 1 // start corked
-  this._ondrain = null
-  this._drained = false
-  this._forwarding = false
-  this._unwrite = null
-  this._unread = null
-  this._ended = false
-
-  this.destroyed = false
-
-  if (writable) this.setWritable(writable)
-  if (readable) this.setReadable(readable)
-}
-
-inherits(Duplexify, stream.Duplex)
-
-Duplexify.obj = function(writable, readable, opts) {
-  if (!opts) opts = {}
-  opts.objectMode = true
-  opts.highWaterMark = 16
-  return new Duplexify(writable, readable, opts)
-}
-
-Duplexify.prototype.cork = function() {
-  if (++this._corked === 1) this.emit('cork')
-}
-
-Duplexify.prototype.uncork = function() {
-  if (this._corked && --this._corked === 0) this.emit('uncork')
-}
-
-Duplexify.prototype.setWritable = function(writable) {
-  if (this._unwrite) this._unwrite()
-
-  if (this.destroyed) {
-    if (writable && writable.destroy) writable.destroy()
-    return
-  }
-
-  if (writable === null || writable === false) {
-    this.end()
-    return
-  }
-
-  var self = this
-  var unend = eos(writable, {writable:true, readable:false}, destroyer(this, this._forwardEnd))
-
-  var ondrain = function() {
-    var ondrain = self._ondrain
-    self._ondrain = null
-    if (ondrain) ondrain()
-  }
-
-  var clear = function() {
-    self._writable.removeListener('drain', ondrain)
-    unend()
-  }
-
-  if (this._unwrite) process.nextTick(ondrain) // force a drain on stream reset to avoid livelocks
-
-  this._writable = writable
-  this._writable.on('drain', ondrain)
-  this._unwrite = clear
-
-  this.uncork() // always uncork setWritable
-}
-
-Duplexify.prototype.setReadable = function(readable) {
-  if (this._unread) this._unread()
-
-  if (this.destroyed) {
-    if (readable && readable.destroy) readable.destroy()
-    return
-  }
-
-  if (readable === null || readable === false) {
-    this.push(null)
-    this.resume()
-    return
-  }
-
-  var self = this
-  var unend = eos(readable, {writable:false, readable:true}, destroyer(this))
-
-  var onreadable = function() {
-    self._forward()
-  }
-
-  var onend = function() {
-    self.push(null)
-  }
-
-  var clear = function() {
-    self._readable2.removeListener('readable', onreadable)
-    self._readable2.removeListener('end', onend)
-    unend()
-  }
-
-  this._drained = true
-  this._readable = readable
-  this._readable2 = readable._readableState ? readable : toStreams2(readable)
-  this._readable2.on('readable', onreadable)
-  this._readable2.on('end', onend)
-  this._unread = clear
-
-  this._forward()
-}
-
-Duplexify.prototype._read = function() {
-  this._drained = true
-  this._forward()
-}
-
-Duplexify.prototype._forward = function() {
-  if (this._forwarding || !this._readable2 || !this._drained) return
-  this._forwarding = true
-
-  var data
-
-  while (this._drained && (data = shift(this._readable2)) !== null) {
-    if (this.destroyed) continue
-    this._drained = this.push(data)
-  }
-
-  this._forwarding = false
-}
-
-Duplexify.prototype.destroy = function(err) {
-  if (this.destroyed) return
-  this.destroyed = true
-
-  var self = this
-  process.nextTick(function() {
-    self._destroy(err)
-  })
-}
-
-Duplexify.prototype._destroy = function(err) {
-  if (err) {
-    var ondrain = this._ondrain
-    this._ondrain = null
-    if (ondrain) ondrain(err)
-    else this.emit('error', err)
-  }
-
-  if (this._forwardDestroy) {
-    if (this._readable && this._readable.destroy) this._readable.destroy()
-    if (this._writable && this._writable.destroy) this._writable.destroy()
-  }
-
-  this.emit('close')
-}
-
-Duplexify.prototype._write = function(data, enc, cb) {
-  if (this.destroyed) return cb()
-  if (this._corked) return onuncork(this, this._write.bind(this, data, enc, cb))
-  if (data === SIGNAL_FLUSH) return this._finish(cb)
-  if (!this._writable) return cb()
-
-  if (this._writable.write(data) === false) this._ondrain = cb
-  else cb()
-}
-
-
-Duplexify.prototype._finish = function(cb) {
-  var self = this
-  this.emit('preend')
-  onuncork(this, function() {
-    end(self._forwardEnd && self._writable, function() {
-      // haxx to not emit prefinish twice
-      if (self._writableState.prefinished === false) self._writableState.prefinished = true
-      self.emit('prefinish')
-      onuncork(self, cb)
-    })
-  })
-}
-
-Duplexify.prototype.end = function(data, enc, cb) {
-  if (typeof data === 'function') return this.end(null, null, data)
-  if (typeof enc === 'function') return this.end(data, null, enc)
-  this._ended = true
-  if (data) this.write(data)
-  if (!this._writableState.ending) this.write(SIGNAL_FLUSH)
-  return stream.Writable.prototype.end.call(this, cb)
-}
-
-module.exports = Duplexify
-
-
-/***/ }),
-/* 387 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var crypto = __webpack_require__(11);
-var BigInteger = __webpack_require__(81).BigInteger;
-var ECPointFp = __webpack_require__(139).ECPointFp;
-var Buffer = __webpack_require__(15).Buffer;
-exports.ECCurves = __webpack_require__(638);
-
-// zero prepad
-function unstupid(hex,len)
-{
-	return (hex.length >= len) ? hex : unstupid("0"+hex,len);
-}
-
-exports.ECKey = function(curve, key, isPublic)
-{
-  var priv;
-	var c = curve();
-	var n = c.getN();
-  var bytes = Math.floor(n.bitLength()/8);
-
-  if(key)
-  {
-    if(isPublic)
-    {
-      var curve = c.getCurve();
-//      var x = key.slice(1,bytes+1); // skip the 04 for uncompressed format
-//      var y = key.slice(bytes+1);
-//      this.P = new ECPointFp(curve,
-//        curve.fromBigInteger(new BigInteger(x.toString("hex"), 16)),
-//        curve.fromBigInteger(new BigInteger(y.toString("hex"), 16)));      
-      this.P = curve.decodePointHex(key.toString("hex"));
-    }else{
-      if(key.length != bytes) return false;
-      priv = new BigInteger(key.toString("hex"), 16);      
-    }
-  }else{
-    var n1 = n.subtract(BigInteger.ONE);
-    var r = new BigInteger(crypto.randomBytes(n.bitLength()));
-    priv = r.mod(n1).add(BigInteger.ONE);
-    this.P = c.getG().multiply(priv);
-  }
-  if(this.P)
-  {
-//  var pubhex = unstupid(this.P.getX().toBigInteger().toString(16),bytes*2)+unstupid(this.P.getY().toBigInteger().toString(16),bytes*2);
-//  this.PublicKey = Buffer.from("04"+pubhex,"hex");
-    this.PublicKey = Buffer.from(c.getCurve().encodeCompressedPointHex(this.P),"hex");
-  }
-  if(priv)
-  {
-    this.PrivateKey = Buffer.from(unstupid(priv.toString(16),bytes*2),"hex");
-    this.deriveSharedSecret = function(key)
-    {
-      if(!key || !key.P) return false;
-      var S = key.P.multiply(priv);
-      return Buffer.from(unstupid(S.getX().toBigInteger().toString(16),bytes*2),"hex");
-   }     
-  }
-}
-
-
-
-/***/ }),
-/* 388 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
-
-module.exports = function (str) {
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
-	}
-
-	return str.replace(matchOperatorsRe, '\\$&');
-};
-
-
-/***/ }),
-/* 389 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-module.exports = function (data, opts) {
-    if (!opts) opts = {};
-    if (typeof opts === 'function') opts = { cmp: opts };
-    var cycles = (typeof opts.cycles === 'boolean') ? opts.cycles : false;
-
-    var cmp = opts.cmp && (function (f) {
-        return function (node) {
-            return function (a, b) {
-                var aobj = { key: a, value: node[a] };
-                var bobj = { key: b, value: node[b] };
-                return f(aobj, bobj);
-            };
-        };
-    })(opts.cmp);
-
-    var seen = [];
-    return (function stringify (node) {
-        if (node && node.toJSON && typeof node.toJSON === 'function') {
-            node = node.toJSON();
-        }
-
-        if (node === undefined) return;
-        if (typeof node == 'number') return isFinite(node) ? '' + node : 'null';
-        if (typeof node !== 'object') return JSON.stringify(node);
-
-        var i, out;
-        if (Array.isArray(node)) {
-            out = '[';
-            for (i = 0; i < node.length; i++) {
-                if (i) out += ',';
-                out += stringify(node[i]) || 'null';
-            }
-            return out + ']';
-        }
-
-        if (node === null) return 'null';
-
-        if (seen.indexOf(node) !== -1) {
-            if (cycles) return JSON.stringify('__cycle__');
-            throw new TypeError('Converting circular structure to JSON');
-        }
-
-        var seenIndex = seen.push(node) - 1;
-        var keys = Object.keys(node).sort(cmp && cmp(node));
-        out = '';
-        for (i = 0; i < keys.length; i++) {
-            var key = keys[i];
-            var value = stringify(node[key]);
-
-            if (!value) continue;
-            if (out) out += ',';
-            out += JSON.stringify(key) + ':' + value;
-        }
-        seen.splice(seenIndex, 1);
-        return '{' + out + '}';
-    })(data);
-};
-
-
-/***/ }),
-/* 390 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var fs = __webpack_require__(5)
-
-module.exports = clone(fs)
-
-function clone (obj) {
-  if (obj === null || typeof obj !== 'object')
-    return obj
-
-  if (obj instanceof Object)
-    var copy = { __proto__: obj.__proto__ }
-  else
-    var copy = Object.create(null)
-
-  Object.getOwnPropertyNames(obj).forEach(function (key) {
-    Object.defineProperty(copy, key, Object.getOwnPropertyDescriptor(obj, key))
-  })
-
-  return copy
-}
-
-
-/***/ }),
-/* 391 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var fs = __webpack_require__(5)
-var polyfills = __webpack_require__(655)
-var legacy = __webpack_require__(654)
-var queue = []
-
-var util = __webpack_require__(3)
-
-function noop () {}
-
-var debug = noop
-if (util.debuglog)
-  debug = util.debuglog('gfs4')
-else if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || ''))
-  debug = function() {
-    var m = util.format.apply(util, arguments)
-    m = 'GFS4: ' + m.split(/\n/).join('\nGFS4: ')
-    console.error(m)
-  }
-
-if (/\bgfs4\b/i.test(process.env.NODE_DEBUG || '')) {
-  process.on('exit', function() {
-    debug(queue)
-    __webpack_require__(28).equal(queue.length, 0)
-  })
-}
-
-module.exports = patch(__webpack_require__(390))
-if (process.env.TEST_GRACEFUL_FS_GLOBAL_PATCH) {
-  module.exports = patch(fs)
-}
-
-// Always patch fs.close/closeSync, because we want to
-// retry() whenever a close happens *anywhere* in the program.
-// This is essential when multiple graceful-fs instances are
-// in play at the same time.
-module.exports.close =
-fs.close = (function (fs$close) { return function (fd, cb) {
-  return fs$close.call(fs, fd, function (err) {
-    if (!err)
-      retry()
-
-    if (typeof cb === 'function')
-      cb.apply(this, arguments)
-  })
-}})(fs.close)
-
-module.exports.closeSync =
-fs.closeSync = (function (fs$closeSync) { return function (fd) {
-  // Note that graceful-fs also retries when fs.closeSync() fails.
-  // Looks like a bug to me, although it's probably a harmless one.
-  var rval = fs$closeSync.apply(fs, arguments)
-  retry()
-  return rval
-}})(fs.closeSync)
-
-function patch (fs) {
-  // Everything that references the open() function needs to be in here
-  polyfills(fs)
-  fs.gracefulify = patch
-  fs.FileReadStream = ReadStream;  // Legacy name.
-  fs.FileWriteStream = WriteStream;  // Legacy name.
-  fs.createReadStream = createReadStream
-  fs.createWriteStream = createWriteStream
-  var fs$readFile = fs.readFile
-  fs.readFile = readFile
-  function readFile (path, options, cb) {
-    if (typeof options === 'function')
-      cb = options, options = null
-
-    return go$readFile(path, options, cb)
-
-    function go$readFile (path, options, cb) {
-      return fs$readFile(path, options, function (err) {
-        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
-          enqueue([go$readFile, [path, options, cb]])
-        else {
-          if (typeof cb === 'function')
-            cb.apply(this, arguments)
-          retry()
-        }
-      })
-    }
-  }
-
-  var fs$writeFile = fs.writeFile
-  fs.writeFile = writeFile
-  function writeFile (path, data, options, cb) {
-    if (typeof options === 'function')
-      cb = options, options = null
-
-    return go$writeFile(path, data, options, cb)
-
-    function go$writeFile (path, data, options, cb) {
-      return fs$writeFile(path, data, options, function (err) {
-        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
-          enqueue([go$writeFile, [path, data, options, cb]])
-        else {
-          if (typeof cb === 'function')
-            cb.apply(this, arguments)
-          retry()
-        }
-      })
-    }
-  }
-
-  var fs$appendFile = fs.appendFile
-  if (fs$appendFile)
-    fs.appendFile = appendFile
-  function appendFile (path, data, options, cb) {
-    if (typeof options === 'function')
-      cb = options, options = null
-
-    return go$appendFile(path, data, options, cb)
-
-    function go$appendFile (path, data, options, cb) {
-      return fs$appendFile(path, data, options, function (err) {
-        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
-          enqueue([go$appendFile, [path, data, options, cb]])
-        else {
-          if (typeof cb === 'function')
-            cb.apply(this, arguments)
-          retry()
-        }
-      })
-    }
-  }
-
-  var fs$readdir = fs.readdir
-  fs.readdir = readdir
-  function readdir (path, options, cb) {
-    var args = [path]
-    if (typeof options !== 'function') {
-      args.push(options)
-    } else {
-      cb = options
-    }
-    args.push(go$readdir$cb)
-
-    return go$readdir(args)
-
-    function go$readdir$cb (err, files) {
-      if (files && files.sort)
-        files.sort()
-
-      if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
-        enqueue([go$readdir, [args]])
-      else {
-        if (typeof cb === 'function')
-          cb.apply(this, arguments)
-        retry()
-      }
-    }
-  }
-
-  function go$readdir (args) {
-    return fs$readdir.apply(fs, args)
-  }
-
-  if (process.version.substr(0, 4) === 'v0.8') {
-    var legStreams = legacy(fs)
-    ReadStream = legStreams.ReadStream
-    WriteStream = legStreams.WriteStream
-  }
-
-  var fs$ReadStream = fs.ReadStream
-  ReadStream.prototype = Object.create(fs$ReadStream.prototype)
-  ReadStream.prototype.open = ReadStream$open
-
-  var fs$WriteStream = fs.WriteStream
-  WriteStream.prototype = Object.create(fs$WriteStream.prototype)
-  WriteStream.prototype.open = WriteStream$open
-
-  fs.ReadStream = ReadStream
-  fs.WriteStream = WriteStream
-
-  function ReadStream (path, options) {
-    if (this instanceof ReadStream)
-      return fs$ReadStream.apply(this, arguments), this
-    else
-      return ReadStream.apply(Object.create(ReadStream.prototype), arguments)
-  }
-
-  function ReadStream$open () {
-    var that = this
-    open(that.path, that.flags, that.mode, function (err, fd) {
-      if (err) {
-        if (that.autoClose)
-          that.destroy()
-
-        that.emit('error', err)
-      } else {
-        that.fd = fd
-        that.emit('open', fd)
-        that.read()
-      }
-    })
-  }
-
-  function WriteStream (path, options) {
-    if (this instanceof WriteStream)
-      return fs$WriteStream.apply(this, arguments), this
-    else
-      return WriteStream.apply(Object.create(WriteStream.prototype), arguments)
-  }
-
-  function WriteStream$open () {
-    var that = this
-    open(that.path, that.flags, that.mode, function (err, fd) {
-      if (err) {
-        that.destroy()
-        that.emit('error', err)
-      } else {
-        that.fd = fd
-        that.emit('open', fd)
-      }
-    })
-  }
-
-  function createReadStream (path, options) {
-    return new ReadStream(path, options)
-  }
-
-  function createWriteStream (path, options) {
-    return new WriteStream(path, options)
-  }
-
-  var fs$open = fs.open
-  fs.open = open
-  function open (path, flags, mode, cb) {
-    if (typeof mode === 'function')
-      cb = mode, mode = null
-
-    return go$open(path, flags, mode, cb)
-
-    function go$open (path, flags, mode, cb) {
-      return fs$open(path, flags, mode, function (err, fd) {
-        if (err && (err.code === 'EMFILE' || err.code === 'ENFILE'))
-          enqueue([go$open, [path, flags, mode, cb]])
-        else {
-          if (typeof cb === 'function')
-            cb.apply(this, arguments)
-          retry()
-        }
-      })
-    }
-  }
-
-  return fs
-}
-
-function enqueue (elem) {
-  debug('ENQUEUE', elem[0].name, elem[1])
-  queue.push(elem)
-}
-
-function retry () {
-  var elem = queue.shift()
-  if (elem) {
-    debug('RETRY', elem[0].name, elem[1])
-    elem[0].apply(null, elem[1])
-  }
-}
-
-
-/***/ }),
-/* 392 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `input` type prompt
- */
-
-var chalk = __webpack_require__(30);
-var { map, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-
-class InputPrompt extends Base {
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    // Once user confirm (enter key)
-    var events = observe(this.rl);
-    var submit = events.line.pipe(map(this.filterInput.bind(this)));
-
-    var validation = this.handleSubmitEvents(submit);
-    validation.success.forEach(this.onEnd.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-
-    events.keypress
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onKeypress.bind(this));
-
-    // Init
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {InputPrompt} self
-   */
-
-  render(error) {
-    var bottomContent = '';
-    var appendContent = '';
-    var message = this.getQuestion();
-    var transformer = this.opt.transformer;
-    var isFinal = this.status === 'answered';
-
-    if (isFinal) {
-      appendContent = this.answer;
-    } else {
-      appendContent = this.rl.line;
-    }
-
-    if (transformer) {
-      message += transformer(appendContent, this.answers, { isFinal });
-    } else {
-      message += isFinal ? chalk.cyan(appendContent) : appendContent;
-    }
-
-    if (error) {
-      bottomContent = chalk.red('>> ') + error;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  filterInput(input) {
-    if (!input) {
-      return this.opt.default == null ? '' : this.opt.default;
-    }
-    return input;
-  }
-
-  onEnd(state) {
-    this.answer = state.value;
-    this.status = 'answered';
-
-    // Re-render prompt
-    this.render();
-
-    this.screen.done();
-    this.done(state.value);
-  }
-
-  onError(state) {
-    this.render(state.isValid);
-  }
-
-  /**
-   * When user press a key
-   */
-
-  onKeypress() {
-    // If user press a key, just clear the default value
-    if (this.opt.default) {
-      this.opt.default = undefined;
-    }
-
-    this.render();
-  }
-}
-
-module.exports = InputPrompt;
-
-
-/***/ }),
-/* 393 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var _ = __webpack_require__(38);
-var MuteStream = __webpack_require__(401);
-var readline = __webpack_require__(197);
-
-/**
- * Base interface class other can inherits from
- */
-
-class UI {
-  constructor(opt) {
-    // Instantiate the Readline interface
-    // @Note: Don't reassign if already present (allow test to override the Stream)
-    if (!this.rl) {
-      this.rl = readline.createInterface(setupReadlineOptions(opt));
-    }
-    this.rl.resume();
-
-    this.onForceClose = this.onForceClose.bind(this);
-
-    // Make sure new prompt start on a newline when closing
-    process.on('exit', this.onForceClose);
-
-    // Terminate process on SIGINT (which will call process.on('exit') in return)
-    this.rl.on('SIGINT', this.onForceClose);
-  }
-
-  /**
-   * Handle the ^C exit
-   * @return {null}
-   */
-
-  onForceClose() {
-    this.close();
-    process.kill(process.pid, 'SIGINT');
-    console.log('');
-  }
-
-  /**
-   * Close the interface and cleanup listeners
-   */
-
-  close() {
-    // Remove events listeners
-    this.rl.removeListener('SIGINT', this.onForceClose);
-    process.removeListener('exit', this.onForceClose);
-
-    this.rl.output.unmute();
-
-    if (this.activePrompt && typeof this.activePrompt.close === 'function') {
-      this.activePrompt.close();
-    }
-
-    // Close the readline
-    this.rl.output.end();
-    this.rl.pause();
-    this.rl.close();
-  }
-}
-
-function setupReadlineOptions(opt) {
-  opt = opt || {};
-
-  // Default `input` to stdin
-  var input = opt.input || process.stdin;
-
-  // Add mute capabilities to the output
-  var ms = new MuteStream();
-  ms.pipe(opt.output || process.stdout);
-  var output = ms;
-
-  return _.extend(
-    {
-      terminal: true,
-      input: input,
-      output: output
-    },
-    _.omit(opt, ['input', 'output'])
-  );
-}
-
-module.exports = UI;
-
-
-/***/ }),
-/* 394 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var ansiEscapes = __webpack_require__(504);
-
-/**
- * Move cursor left by `x`
- * @param  {Readline} rl - Readline instance
- * @param  {Number}   x  - How far to go left (default to 1)
- */
-
-exports.left = function(rl, x) {
-  rl.output.write(ansiEscapes.cursorBackward(x));
-};
-
-/**
- * Move cursor right by `x`
- * @param  {Readline} rl - Readline instance
- * @param  {Number}   x  - How far to go left (default to 1)
- */
-
-exports.right = function(rl, x) {
-  rl.output.write(ansiEscapes.cursorForward(x));
-};
-
-/**
- * Move cursor up by `x`
- * @param  {Readline} rl - Readline instance
- * @param  {Number}   x  - How far to go up (default to 1)
- */
-
-exports.up = function(rl, x) {
-  rl.output.write(ansiEscapes.cursorUp(x));
-};
-
-/**
- * Move cursor down by `x`
- * @param  {Readline} rl - Readline instance
- * @param  {Number}   x  - How far to go down (default to 1)
- */
-
-exports.down = function(rl, x) {
-  rl.output.write(ansiEscapes.cursorDown(x));
-};
-
-/**
- * Clear current line
- * @param  {Readline} rl  - Readline instance
- * @param  {Number}   len - number of line to delete
- */
-exports.clearLine = function(rl, len) {
-  rl.output.write(ansiEscapes.eraseLines(len));
-};
-
-
-/***/ }),
-/* 395 */
-/***/ (function(module, exports) {
-
-module.exports = 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覾觻譾讄讂讆讅譿贕躕躔躚躒躐躖躗轠轢酇鑌鑐鑊鑋鑏鑇鑅鑈鑉鑆霿韣顪顩飋饔饛驎驓驔驌驏驈驊"],["f7a1","驉驒驐髐鬙鬫鬻魖魕鱆鱈鰿鱄鰹鰳鱁鰼鰷鰴鰲鰽鰶鷛鷒鷞鷚鷋鷐鷜鷑鷟鷩鷙鷘鷖鷵鷕鷝麶黰鼵鼳鼲齂齫龕龢儽劙壨壧奲孍巘蠯彏戁戃戄攩攥斖曫欑欒欏毊灛灚爢玂玁玃癰矔籧籦纕艬蘺虀蘹蘼蘱蘻蘾蠰蠲蠮蠳襶襴襳觾"],["f840","讌讎讋讈豅贙躘轤轣醼鑢鑕鑝鑗鑞韄韅頀驖驙鬞鬟鬠鱒鱘鱐鱊鱍鱋鱕鱙鱌鱎鷻鷷鷯鷣鷫鷸鷤鷶鷡鷮鷦鷲鷰鷢鷬鷴鷳鷨鷭黂黐黲黳鼆鼜鼸鼷鼶齃齏"],["f8a1","齱齰齮齯囓囍孎屭攭曭曮欓灟灡灝灠爣瓛瓥矕礸禷禶籪纗羉艭虃蠸蠷蠵衋讔讕躞躟躠躝醾醽釂鑫鑨鑩雥靆靃靇韇韥驞髕魙鱣鱧鱦鱢鱞鱠鸂鷾鸇鸃鸆鸅鸀鸁鸉鷿鷽鸄麠鼞齆齴齵齶囔攮斸欘欙欗欚灢爦犪矘矙礹籩籫糶纚"],["f940","纘纛纙臠臡虆虇虈襹襺襼襻觿讘讙躥躤躣鑮鑭鑯鑱鑳靉顲饟鱨鱮鱭鸋鸍鸐鸏鸒鸑麡黵鼉齇齸齻齺齹圞灦籯蠼趲躦釃鑴鑸鑶鑵驠鱴鱳鱱鱵鸔鸓黶鼊"],["f9a1","龤灨灥糷虪蠾蠽蠿讞貜躩軉靋顳顴飌饡馫驤驦驧鬤鸕鸗齈戇欞爧虌躨钂钀钁驩驨鬮鸙爩虋讟钃鱹麷癵驫鱺鸝灩灪麤齾齉龘碁銹裏墻恒粧嫺╔╦╗╠╬╣╚╩╝╒╤╕╞╪╡╘╧╛╓╥╖╟╫╢╙╨╜║═╭╮╰╯▓"]]
-
-/***/ }),
-/* 396 */
-/***/ (function(module, exports) {
-
-module.exports = [["a140","",62],["a180","",32],["a240","",62],["a280","",32],["a2ab","",5],["a2e3","€"],["a2ef",""],["a2fd",""],["a340","",62],["a380","",31,"　"],["a440","",62],["a480","",32],["a4f4","",10],["a540","",62],["a580","",32],["a5f7","",7],["a640","",62],["a680","",32],["a6b9","",7],["a6d9","",6],["a6ec",""],["a6f3",""],["a6f6","",8],["a740","",62],["a780","",32],["a7c2","",14],["a7f2","",12],["a896","",10],["a8bc",""],["a8bf","ǹ"],["a8c1",""],["a8ea","",20],["a958",""],["a95b",""],["a95d",""],["a989","〾⿰",11],["a997","",12],["a9f0","",14],["aaa1","",93],["aba1","",93],["aca1","",93],["ada1","",93],["aea1","",93],["afa1","",93],["d7fa","",4],["f8a1","",93],["f9a1","",93],["faa1","",93],["fba1","",93],["fca1","",93],["fda1","",93],["fe50","⺁⺄㑳㑇⺈⺋㖞㘚㘎⺌⺗㥮㤘㧏㧟㩳㧐㭎㱮㳠⺧⺪䁖䅟⺮䌷⺳⺶⺷䎱䎬⺻䏝䓖䙡䙌"],["fe80","䜣䜩䝼䞍⻊䥇䥺䥽䦂䦃䦅䦆䦟䦛䦷䦶䲣䲟䲠䲡䱷䲢䴓",6,"䶮",93]]
-
-/***/ }),
-/* 397 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-module.exports = __webpack_require__(601).isCI
-
-
-/***/ }),
-/* 398 */
-/***/ (function(module, exports) {
-
-var toString = {}.toString;
-
-module.exports = Array.isArray || function (arr) {
-  return toString.call(arr) == '[object Array]';
-};
-
-
-/***/ }),
-/* 399 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var stream = __webpack_require__(23)
-
-
-function isStream (obj) {
-  return obj instanceof stream.Stream
-}
-
-
-function isReadable (obj) {
-  return isStream(obj) && typeof obj._read == 'function' && typeof obj._readableState == 'object'
-}
-
-
-function isWritable (obj) {
-  return isStream(obj) && typeof obj._write == 'function' && typeof obj._writableState == 'object'
-}
-
-
-function isDuplex (obj) {
-  return isReadable(obj) && isWritable(obj)
-}
-
-
-module.exports            = isStream
-module.exports.isReadable = isReadable
-module.exports.isWritable = isWritable
-module.exports.isDuplex   = isDuplex
-
-
-/***/ }),
-/* 400 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * mime-types
- * Copyright(c) 2014 Jonathan Ong
- * Copyright(c) 2015 Douglas Christopher Wilson
- * MIT Licensed
- */
-
-
-
-/**
- * Module dependencies.
- * @private
- */
-
-var db = __webpack_require__(759)
-var extname = __webpack_require__(0).extname
-
-/**
- * Module variables.
- * @private
- */
-
-var EXTRACT_TYPE_REGEXP = /^\s*([^;\s]*)(?:;|\s|$)/
-var TEXT_TYPE_REGEXP = /^text\//i
-
-/**
- * Module exports.
- * @public
- */
-
-exports.charset = charset
-exports.charsets = { lookup: charset }
-exports.contentType = contentType
-exports.extension = extension
-exports.extensions = Object.create(null)
-exports.lookup = lookup
-exports.types = Object.create(null)
-
-// Populate the extensions/types maps
-populateMaps(exports.extensions, exports.types)
-
-/**
- * Get the default charset for a MIME type.
- *
- * @param {string} type
- * @return {boolean|string}
- */
-
-function charset (type) {
-  if (!type || typeof type !== 'string') {
-    return false
-  }
-
-  // TODO: use media-typer
-  var match = EXTRACT_TYPE_REGEXP.exec(type)
-  var mime = match && db[match[1].toLowerCase()]
-
-  if (mime && mime.charset) {
-    return mime.charset
-  }
-
-  // default text/* to utf-8
-  if (match && TEXT_TYPE_REGEXP.test(match[1])) {
-    return 'UTF-8'
-  }
-
-  return false
-}
-
-/**
- * Create a full Content-Type header given a MIME type or extension.
- *
- * @param {string} str
- * @return {boolean|string}
- */
-
-function contentType (str) {
-  // TODO: should this even be in this module?
-  if (!str || typeof str !== 'string') {
-    return false
-  }
-
-  var mime = str.indexOf('/') === -1
-    ? exports.lookup(str)
-    : str
-
-  if (!mime) {
-    return false
-  }
-
-  // TODO: use content-type or other module
-  if (mime.indexOf('charset') === -1) {
-    var charset = exports.charset(mime)
-    if (charset) mime += '; charset=' + charset.toLowerCase()
-  }
-
-  return mime
-}
-
-/**
- * Get the default extension for a MIME type.
- *
- * @param {string} type
- * @return {boolean|string}
- */
-
-function extension (type) {
-  if (!type || typeof type !== 'string') {
-    return false
-  }
-
-  // TODO: use media-typer
-  var match = EXTRACT_TYPE_REGEXP.exec(type)
-
-  // get extensions
-  var exts = match && exports.extensions[match[1].toLowerCase()]
-
-  if (!exts || !exts.length) {
-    return false
-  }
-
-  return exts[0]
-}
-
-/**
- * Lookup the MIME type for a file path/extension.
- *
- * @param {string} path
- * @return {boolean|string}
- */
-
-function lookup (path) {
-  if (!path || typeof path !== 'string') {
-    return false
-  }
-
-  // get the extension ("ext" or ".ext" or full path)
-  var extension = extname('x.' + path)
-    .toLowerCase()
-    .substr(1)
-
-  if (!extension) {
-    return false
-  }
-
-  return exports.types[extension] || false
-}
-
-/**
- * Populate the extensions and types maps.
- * @private
- */
-
-function populateMaps (extensions, types) {
-  // source preference (least -> most)
-  var preference = ['nginx', 'apache', undefined, 'iana']
-
-  Object.keys(db).forEach(function forEachMimeType (type) {
-    var mime = db[type]
-    var exts = mime.extensions
-
-    if (!exts || !exts.length) {
-      return
-    }
-
-    // mime -> extensions
-    extensions[type] = exts
-
-    // extension -> mime
-    for (var i = 0; i < exts.length; i++) {
-      var extension = exts[i]
-
-      if (types[extension]) {
-        var from = preference.indexOf(db[types[extension]].source)
-        var to = preference.indexOf(mime.source)
-
-        if (types[extension] !== 'application/octet-stream' &&
-          (from > to || (from === to && types[extension].substr(0, 12) === 'application/'))) {
-          // skip the remapping
-          continue
-        }
-      }
-
-      // set the extension -> mime
-      types[extension] = type
-    }
-  })
-}
-
-
-/***/ }),
-/* 401 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stream = __webpack_require__(23)
-
-module.exports = MuteStream
-
-// var out = new MuteStream(process.stdout)
-// argument auto-pipes
-function MuteStream (opts) {
-  Stream.apply(this)
-  opts = opts || {}
-  this.writable = this.readable = true
-  this.muted = false
-  this.on('pipe', this._onpipe)
-  this.replace = opts.replace
-
-  // For readline-type situations
-  // This much at the start of a line being redrawn after a ctrl char
-  // is seen (such as backspace) won't be redrawn as the replacement
-  this._prompt = opts.prompt || null
-  this._hadControl = false
-}
-
-MuteStream.prototype = Object.create(Stream.prototype)
-
-Object.defineProperty(MuteStream.prototype, 'constructor', {
-  value: MuteStream,
-  enumerable: false
-})
-
-MuteStream.prototype.mute = function () {
-  this.muted = true
-}
-
-MuteStream.prototype.unmute = function () {
-  this.muted = false
-}
-
-Object.defineProperty(MuteStream.prototype, '_onpipe', {
-  value: onPipe,
-  enumerable: false,
-  writable: true,
-  configurable: true
-})
-
-function onPipe (src) {
-  this._src = src
-}
-
-Object.defineProperty(MuteStream.prototype, 'isTTY', {
-  get: getIsTTY,
-  set: setIsTTY,
-  enumerable: true,
-  configurable: true
-})
-
-function getIsTTY () {
-  return( (this._dest) ? this._dest.isTTY
-        : (this._src) ? this._src.isTTY
-        : false
-        )
-}
-
-// basically just get replace the getter/setter with a regular value
-function setIsTTY (isTTY) {
-  Object.defineProperty(this, 'isTTY', {
-    value: isTTY,
-    enumerable: true,
-    writable: true,
-    configurable: true
-  })
-}
-
-Object.defineProperty(MuteStream.prototype, 'rows', {
-  get: function () {
-    return( this._dest ? this._dest.rows
-          : this._src ? this._src.rows
-          : undefined )
-  }, enumerable: true, configurable: true })
-
-Object.defineProperty(MuteStream.prototype, 'columns', {
-  get: function () {
-    return( this._dest ? this._dest.columns
-          : this._src ? this._src.columns
-          : undefined )
-  }, enumerable: true, configurable: true })
-
-
-MuteStream.prototype.pipe = function (dest, options) {
-  this._dest = dest
-  return Stream.prototype.pipe.call(this, dest, options)
-}
-
-MuteStream.prototype.pause = function () {
-  if (this._src) return this._src.pause()
-}
-
-MuteStream.prototype.resume = function () {
-  if (this._src) return this._src.resume()
-}
-
-MuteStream.prototype.write = function (c) {
-  if (this.muted) {
-    if (!this.replace) return true
-    if (c.match(/^\u001b/)) {
-      if(c.indexOf(this._prompt) === 0) {
-        c = c.substr(this._prompt.length);
-        c = c.replace(/./g, this.replace);
-        c = this._prompt + c;
-      }
-      this._hadControl = true
-      return this.emit('data', c)
-    } else {
-      if (this._prompt && this._hadControl &&
-          c.indexOf(this._prompt) === 0) {
-        this._hadControl = false
-        this.emit('data', this._prompt)
-        c = c.substr(this._prompt.length)
-      }
-      c = c.toString().replace(/./g, this.replace)
-    }
-  }
-  this.emit('data', c)
-}
-
-MuteStream.prototype.end = function (c) {
-  if (this.muted) {
-    if (c && this.replace) {
-      c = c.toString().replace(/./g, this.replace)
-    } else {
-      c = null
-    }
-  }
-  if (c) this.emit('data', c)
-  this.emit('end')
-}
-
-function proxy (fn) { return function () {
-  var d = this._dest
-  var s = this._src
-  if (d && d[fn]) d[fn].apply(d, arguments)
-  if (s && s[fn]) s[fn].apply(s, arguments)
-}}
-
-MuteStream.prototype.destroy = proxy('destroy')
-MuteStream.prototype.destroySoon = proxy('destroySoon')
-MuteStream.prototype.close = proxy('close')
-
-
-/***/ }),
-/* 402 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const url = __webpack_require__(24);
-const punycode = __webpack_require__(332);
-const queryString = __webpack_require__(786);
-const prependHttp = __webpack_require__(777);
-const sortKeys = __webpack_require__(934);
-
-const DEFAULT_PORTS = {
-	'http:': 80,
-	'https:': 443,
-	'ftp:': 21
-};
-
-// Protocols that always contain a `//`` bit
-const slashedProtocol = {
-	http: true,
-	https: true,
-	ftp: true,
-	gopher: true,
-	file: true,
-	'http:': true,
-	'https:': true,
-	'ftp:': true,
-	'gopher:': true,
-	'file:': true
-};
-
-function testParameter(name, filters) {
-	return filters.some(filter => filter instanceof RegExp ? filter.test(name) : filter === name);
-}
-
-module.exports = (str, opts) => {
-	opts = Object.assign({
-		normalizeProtocol: true,
-		normalizeHttps: false,
-		stripFragment: true,
-		stripWWW: true,
-		removeQueryParameters: [/^utm_\w+/i],
-		removeTrailingSlash: true,
-		removeDirectoryIndex: false,
-		sortQueryParameters: true
-	}, opts);
-
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
-	}
-
-	const hasRelativeProtocol = str.startsWith('//');
-
-	// Prepend protocol
-	str = prependHttp(str.trim()).replace(/^\/\//, 'http://');
-
-	const urlObj = url.parse(str);
-
-	if (opts.normalizeHttps && urlObj.protocol === 'https:') {
-		urlObj.protocol = 'http:';
-	}
-
-	if (!urlObj.hostname && !urlObj.pathname) {
-		throw new Error('Invalid URL');
-	}
-
-	// Prevent these from being used by `url.format`
-	delete urlObj.host;
-	delete urlObj.query;
-
-	// Remove fragment
-	if (opts.stripFragment) {
-		delete urlObj.hash;
-	}
-
-	// Remove default port
-	const port = DEFAULT_PORTS[urlObj.protocol];
-	if (Number(urlObj.port) === port) {
-		delete urlObj.port;
-	}
-
-	// Remove duplicate slashes
-	if (urlObj.pathname) {
-		urlObj.pathname = urlObj.pathname.replace(/\/{2,}/g, '/');
-	}
-
-	// Decode URI octets
-	if (urlObj.pathname) {
-		urlObj.pathname = decodeURI(urlObj.pathname);
-	}
-
-	// Remove directory index
-	if (opts.removeDirectoryIndex === true) {
-		opts.removeDirectoryIndex = [/^index\.[a-z]+$/];
-	}
-
-	if (Array.isArray(opts.removeDirectoryIndex) && opts.removeDirectoryIndex.length > 0) {
-		let pathComponents = urlObj.pathname.split('/');
-		const lastComponent = pathComponents[pathComponents.length - 1];
-
-		if (testParameter(lastComponent, opts.removeDirectoryIndex)) {
-			pathComponents = pathComponents.slice(0, pathComponents.length - 1);
-			urlObj.pathname = pathComponents.slice(1).join('/') + '/';
-		}
-	}
-
-	// Resolve relative paths, but only for slashed protocols
-	if (slashedProtocol[urlObj.protocol]) {
-		const domain = urlObj.protocol + '//' + urlObj.hostname;
-		const relative = url.resolve(domain, urlObj.pathname);
-		urlObj.pathname = relative.replace(domain, '');
-	}
-
-	if (urlObj.hostname) {
-		// IDN to Unicode
-		urlObj.hostname = punycode.toUnicode(urlObj.hostname).toLowerCase();
-
-		// Remove trailing dot
-		urlObj.hostname = urlObj.hostname.replace(/\.$/, '');
-
-		// Remove `www.`
-		if (opts.stripWWW) {
-			urlObj.hostname = urlObj.hostname.replace(/^www\./, '');
-		}
-	}
-
-	// Remove URL with empty query string
-	if (urlObj.search === '?') {
-		delete urlObj.search;
-	}
-
-	const queryParameters = queryString.parse(urlObj.search);
-
-	// Remove query unwanted parameters
-	if (Array.isArray(opts.removeQueryParameters)) {
-		for (const key in queryParameters) {
-			if (testParameter(key, opts.removeQueryParameters)) {
-				delete queryParameters[key];
-			}
-		}
-	}
-
-	// Sort query parameters
-	if (opts.sortQueryParameters) {
-		urlObj.search = queryString.stringify(sortKeys(queryParameters));
-	}
-
-	// Decode query parameters
-	if (urlObj.search !== null) {
-		urlObj.search = decodeURIComponent(urlObj.search);
-	}
-
-	// Take advantage of many of the Node `url` normalizations
-	str = url.format(urlObj);
-
-	// Remove ending `/`
-	if (opts.removeTrailingSlash || urlObj.pathname === '/') {
-		str = str.replace(/\/$/, '');
-	}
-
-	// Restore relative protocol, if applicable
-	if (hasRelativeProtocol && !opts.normalizeProtocol) {
-		str = str.replace(/^http:\/\//, '//');
-	}
-
-	return str;
-};
-
-
-/***/ }),
-/* 403 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var replace = String.prototype.replace;
-var percentTwenties = /%20/g;
-
-module.exports = {
-    'default': 'RFC3986',
-    formatters: {
-        RFC1738: function (value) {
-            return replace.call(value, percentTwenties, '+');
-        },
-        RFC3986: function (value) {
-            return value;
-        }
-    },
-    RFC1738: 'RFC1738',
-    RFC3986: 'RFC3986'
-};
-
-
-/***/ }),
-/* 404 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var stringify = __webpack_require__(785);
-var parse = __webpack_require__(784);
-var formats = __webpack_require__(403);
-
-module.exports = {
-    formats: formats,
-    parse: parse,
-    stringify: stringify
-};
-
-
-/***/ }),
-/* 405 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var has = Object.prototype.hasOwnProperty;
-
-var hexTable = (function () {
-    var array = [];
-    for (var i = 0; i < 256; ++i) {
-        array.push('%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase());
-    }
-
-    return array;
-}());
-
-var compactQueue = function compactQueue(queue) {
-    var obj;
-
-    while (queue.length) {
-        var item = queue.pop();
-        obj = item.obj[item.prop];
-
-        if (Array.isArray(obj)) {
-            var compacted = [];
-
-            for (var j = 0; j < obj.length; ++j) {
-                if (typeof obj[j] !== 'undefined') {
-                    compacted.push(obj[j]);
-                }
-            }
-
-            item.obj[item.prop] = compacted;
-        }
-    }
-
-    return obj;
-};
-
-var arrayToObject = function arrayToObject(source, options) {
-    var obj = options && options.plainObjects ? Object.create(null) : {};
-    for (var i = 0; i < source.length; ++i) {
-        if (typeof source[i] !== 'undefined') {
-            obj[i] = source[i];
-        }
-    }
-
-    return obj;
-};
-
-var merge = function merge(target, source, options) {
-    if (!source) {
-        return target;
-    }
-
-    if (typeof source !== 'object') {
-        if (Array.isArray(target)) {
-            target.push(source);
-        } else if (typeof target === 'object') {
-            if (options.plainObjects || options.allowPrototypes || !has.call(Object.prototype, source)) {
-                target[source] = true;
-            }
-        } else {
-            return [target, source];
-        }
-
-        return target;
-    }
-
-    if (typeof target !== 'object') {
-        return [target].concat(source);
-    }
-
-    var mergeTarget = target;
-    if (Array.isArray(target) && !Array.isArray(source)) {
-        mergeTarget = arrayToObject(target, options);
-    }
-
-    if (Array.isArray(target) && Array.isArray(source)) {
-        source.forEach(function (item, i) {
-            if (has.call(target, i)) {
-                if (target[i] && typeof target[i] === 'object') {
-                    target[i] = merge(target[i], item, options);
-                } else {
-                    target.push(item);
-                }
-            } else {
-                target[i] = item;
-            }
-        });
-        return target;
-    }
-
-    return Object.keys(source).reduce(function (acc, key) {
-        var value = source[key];
-
-        if (has.call(acc, key)) {
-            acc[key] = merge(acc[key], value, options);
-        } else {
-            acc[key] = value;
-        }
-        return acc;
-    }, mergeTarget);
-};
-
-var assign = function assignSingleSource(target, source) {
-    return Object.keys(source).reduce(function (acc, key) {
-        acc[key] = source[key];
-        return acc;
-    }, target);
-};
-
-var decode = function (str) {
-    try {
-        return decodeURIComponent(str.replace(/\+/g, ' '));
-    } catch (e) {
-        return str;
-    }
-};
-
-var encode = function encode(str) {
-    // This code was originally written by Brian White (mscdex) for the io.js core querystring library.
-    // It has been adapted here for stricter adherence to RFC 3986
-    if (str.length === 0) {
-        return str;
-    }
-
-    var string = typeof str === 'string' ? str : String(str);
-
-    var out = '';
-    for (var i = 0; i < string.length; ++i) {
-        var c = string.charCodeAt(i);
-
-        if (
-            c === 0x2D // -
-            || c === 0x2E // .
-            || c === 0x5F // _
-            || c === 0x7E // ~
-            || (c >= 0x30 && c <= 0x39) // 0-9
-            || (c >= 0x41 && c <= 0x5A) // a-z
-            || (c >= 0x61 && c <= 0x7A) // A-Z
-        ) {
-            out += string.charAt(i);
-            continue;
-        }
-
-        if (c < 0x80) {
-            out = out + hexTable[c];
-            continue;
-        }
-
-        if (c < 0x800) {
-            out = out + (hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)]);
-            continue;
-        }
-
-        if (c < 0xD800 || c >= 0xE000) {
-            out = out + (hexTable[0xE0 | (c >> 12)] + hexTable[0x80 | ((c >> 6) & 0x3F)] + hexTable[0x80 | (c & 0x3F)]);
-            continue;
-        }
-
-        i += 1;
-        c = 0x10000 + (((c & 0x3FF) << 10) | (string.charCodeAt(i) & 0x3FF));
-        out += hexTable[0xF0 | (c >> 18)]
-            + hexTable[0x80 | ((c >> 12) & 0x3F)]
-            + hexTable[0x80 | ((c >> 6) & 0x3F)]
-            + hexTable[0x80 | (c & 0x3F)];
-    }
-
-    return out;
-};
-
-var compact = function compact(value) {
-    var queue = [{ obj: { o: value }, prop: 'o' }];
-    var refs = [];
-
-    for (var i = 0; i < queue.length; ++i) {
-        var item = queue[i];
-        var obj = item.obj[item.prop];
-
-        var keys = Object.keys(obj);
-        for (var j = 0; j < keys.length; ++j) {
-            var key = keys[j];
-            var val = obj[key];
-            if (typeof val === 'object' && val !== null && refs.indexOf(val) === -1) {
-                queue.push({ obj: obj, prop: key });
-                refs.push(val);
-            }
-        }
-    }
-
-    return compactQueue(queue);
-};
-
-var isRegExp = function isRegExp(obj) {
-    return Object.prototype.toString.call(obj) === '[object RegExp]';
-};
-
-var isBuffer = function isBuffer(obj) {
-    if (obj === null || typeof obj === 'undefined') {
-        return false;
-    }
-
-    return !!(obj.constructor && obj.constructor.isBuffer && obj.constructor.isBuffer(obj));
-};
-
-module.exports = {
-    arrayToObject: arrayToObject,
-    assign: assign,
-    compact: compact,
-    decode: decode,
-    encode: encode,
-    isBuffer: isBuffer,
-    isRegExp: isRegExp,
-    merge: merge
-};
-
-
-/***/ }),
-/* 406 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-
-/*<replacement>*/
-
-var pna = __webpack_require__(180);
-/*</replacement>*/
-
-module.exports = Readable;
-
-/*<replacement>*/
-var isArray = __webpack_require__(398);
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Readable.ReadableState = ReadableState;
-
-/*<replacement>*/
-var EE = __webpack_require__(77).EventEmitter;
-
-var EElistenerCount = function (emitter, type) {
-  return emitter.listeners(type).length;
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = __webpack_require__(410);
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = __webpack_require__(45).Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
-  return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
-  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-/*<replacement>*/
-var util = __webpack_require__(113);
-util.inherits = __webpack_require__(61);
-/*</replacement>*/
-
-/*<replacement>*/
-var debugUtil = __webpack_require__(3);
-var debug = void 0;
-if (debugUtil && debugUtil.debuglog) {
-  debug = debugUtil.debuglog('stream');
-} else {
-  debug = function () {};
-}
-/*</replacement>*/
-
-var BufferList = __webpack_require__(793);
-var destroyImpl = __webpack_require__(409);
-var StringDecoder;
-
-util.inherits(Readable, Stream);
-
-var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
-
-function prependListener(emitter, event, fn) {
-  // Sadly this is not cacheable as some libraries bundle their own
-  // event emitter implementation with them.
-  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
-
-  // This is a hack to make sure that our error handler is attached before any
-  // userland ones.  NEVER DO THIS. This is here only because this code needs
-  // to continue to work with older versions of Node.js that do not include
-  // the prependListener() method. The goal is to eventually remove this hack.
-  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
-}
-
-function ReadableState(options, stream) {
-  Duplex = Duplex || __webpack_require__(115);
-
-  options = options || {};
-
-  // Duplex streams are both readable and writable, but share
-  // the same options object.
-  // However, some cases require setting options to different
-  // values for the readable and the writable sides of the duplex stream.
-  // These options can be provided separately as readableXXX and writableXXX.
-  var isDuplex = stream instanceof Duplex;
-
-  // object stream flag. Used to make read(n) ignore n and to
-  // make all the buffer merging and length checks go away
-  this.objectMode = !!options.objectMode;
-
-  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
-
-  // the point at which it stops calling _read() to fill the buffer
-  // Note: 0 is a valid value, means "don't call _read preemptively ever"
-  var hwm = options.highWaterMark;
-  var readableHwm = options.readableHighWaterMark;
-  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
-  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;
-
-  // cast to ints.
-  this.highWaterMark = Math.floor(this.highWaterMark);
-
-  // A linked list is used to store data chunks instead of an array because the
-  // linked list can remove elements from the beginning faster than
-  // array.shift()
-  this.buffer = new BufferList();
-  this.length = 0;
-  this.pipes = null;
-  this.pipesCount = 0;
-  this.flowing = null;
-  this.ended = false;
-  this.endEmitted = false;
-  this.reading = false;
-
-  // a flag to be able to tell if the event 'readable'/'data' is emitted
-  // immediately, or on a later tick.  We set this to true at first, because
-  // any actions that shouldn't happen until "later" should generally also
-  // not happen before the first read call.
-  this.sync = true;
-
-  // whenever we return null, then we set a flag to say
-  // that we're awaiting a 'readable' event emission.
-  this.needReadable = false;
-  this.emittedReadable = false;
-  this.readableListening = false;
-  this.resumeScheduled = false;
-
-  // has it been destroyed
-  this.destroyed = false;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // the number of writers that are awaiting a drain event in .pipe()s
-  this.awaitDrain = 0;
-
-  // if true, a maybeReadMore has been scheduled
-  this.readingMore = false;
-
-  this.decoder = null;
-  this.encoding = null;
-  if (options.encoding) {
-    if (!StringDecoder) StringDecoder = __webpack_require__(458).StringDecoder;
-    this.decoder = new StringDecoder(options.encoding);
-    this.encoding = options.encoding;
-  }
-}
-
-function Readable(options) {
-  Duplex = Duplex || __webpack_require__(115);
-
-  if (!(this instanceof Readable)) return new Readable(options);
-
-  this._readableState = new ReadableState(options, this);
-
-  // legacy
-  this.readable = true;
-
-  if (options) {
-    if (typeof options.read === 'function') this._read = options.read;
-
-    if (typeof options.destroy === 'function') this._destroy = options.destroy;
-  }
-
-  Stream.call(this);
-}
-
-Object.defineProperty(Readable.prototype, 'destroyed', {
-  get: function () {
-    if (this._readableState === undefined) {
-      return false;
-    }
-    return this._readableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (!this._readableState) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._readableState.destroyed = value;
-  }
-});
-
-Readable.prototype.destroy = destroyImpl.destroy;
-Readable.prototype._undestroy = destroyImpl.undestroy;
-Readable.prototype._destroy = function (err, cb) {
-  this.push(null);
-  cb(err);
-};
-
-// Manually shove something into the read() buffer.
-// This returns true if the highWaterMark has not been hit yet,
-// similar to how Writable.write() returns true if you should
-// write() some more.
-Readable.prototype.push = function (chunk, encoding) {
-  var state = this._readableState;
-  var skipChunkCheck;
-
-  if (!state.objectMode) {
-    if (typeof chunk === 'string') {
-      encoding = encoding || state.defaultEncoding;
-      if (encoding !== state.encoding) {
-        chunk = Buffer.from(chunk, encoding);
-        encoding = '';
-      }
-      skipChunkCheck = true;
-    }
-  } else {
-    skipChunkCheck = true;
-  }
-
-  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
-};
-
-// Unshift should *always* be something directly out of read()
-Readable.prototype.unshift = function (chunk) {
-  return readableAddChunk(this, chunk, null, true, false);
-};
-
-function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
-  var state = stream._readableState;
-  if (chunk === null) {
-    state.reading = false;
-    onEofChunk(stream, state);
-  } else {
-    var er;
-    if (!skipChunkCheck) er = chunkInvalid(state, chunk);
-    if (er) {
-      stream.emit('error', er);
-    } else if (state.objectMode || chunk && chunk.length > 0) {
-      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
-        chunk = _uint8ArrayToBuffer(chunk);
-      }
-
-      if (addToFront) {
-        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);
-      } else if (state.ended) {
-        stream.emit('error', new Error('stream.push() after EOF'));
-      } else {
-        state.reading = false;
-        if (state.decoder && !encoding) {
-          chunk = state.decoder.write(chunk);
-          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
-        } else {
-          addChunk(stream, state, chunk, false);
-        }
-      }
-    } else if (!addToFront) {
-      state.reading = false;
-    }
-  }
-
-  return needMoreData(state);
-}
-
-function addChunk(stream, state, chunk, addToFront) {
-  if (state.flowing && state.length === 0 && !state.sync) {
-    stream.emit('data', chunk);
-    stream.read(0);
-  } else {
-    // update the buffer info.
-    state.length += state.objectMode ? 1 : chunk.length;
-    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
-
-    if (state.needReadable) emitReadable(stream);
-  }
-  maybeReadMore(stream, state);
-}
-
-function chunkInvalid(state, chunk) {
-  var er;
-  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  return er;
-}
-
-// if it's past the high water mark, we can push in some more.
-// Also, if we have no data yet, we can stand some
-// more bytes.  This is to work around cases where hwm=0,
-// such as the repl.  Also, if the push() triggered a
-// readable event, and the user called read(largeNumber) such that
-// needReadable was set, then we ought to push more, so that another
-// 'readable' event will be triggered.
-function needMoreData(state) {
-  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
-}
-
-Readable.prototype.isPaused = function () {
-  return this._readableState.flowing === false;
-};
-
-// backwards compatibility.
-Readable.prototype.setEncoding = function (enc) {
-  if (!StringDecoder) StringDecoder = __webpack_require__(458).StringDecoder;
-  this._readableState.decoder = new StringDecoder(enc);
-  this._readableState.encoding = enc;
-  return this;
-};
-
-// Don't raise the hwm > 8MB
-var MAX_HWM = 0x800000;
-function computeNewHighWaterMark(n) {
-  if (n >= MAX_HWM) {
-    n = MAX_HWM;
-  } else {
-    // Get the next highest power of 2 to prevent increasing hwm excessively in
-    // tiny amounts
-    n--;
-    n |= n >>> 1;
-    n |= n >>> 2;
-    n |= n >>> 4;
-    n |= n >>> 8;
-    n |= n >>> 16;
-    n++;
-  }
-  return n;
-}
-
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function howMuchToRead(n, state) {
-  if (n <= 0 || state.length === 0 && state.ended) return 0;
-  if (state.objectMode) return 1;
-  if (n !== n) {
-    // Only flow one buffer at a time
-    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
-  }
-  // If we're asking for more than the current hwm, then raise the hwm.
-  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
-  if (n <= state.length) return n;
-  // Don't have enough
-  if (!state.ended) {
-    state.needReadable = true;
-    return 0;
-  }
-  return state.length;
-}
-
-// you can override either this method, or the async _read(n) below.
-Readable.prototype.read = function (n) {
-  debug('read', n);
-  n = parseInt(n, 10);
-  var state = this._readableState;
-  var nOrig = n;
-
-  if (n !== 0) state.emittedReadable = false;
-
-  // if we're doing read(0) to trigger a readable event, but we
-  // already have a bunch of data in the buffer, then just trigger
-  // the 'readable' event and move on.
-  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
-    debug('read: emitReadable', state.length, state.ended);
-    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
-    return null;
-  }
-
-  n = howMuchToRead(n, state);
-
-  // if we've ended, and we're now clear, then finish it up.
-  if (n === 0 && state.ended) {
-    if (state.length === 0) endReadable(this);
-    return null;
-  }
-
-  // All the actual chunk generation logic needs to be
-  // *below* the call to _read.  The reason is that in certain
-  // synthetic stream cases, such as passthrough streams, _read
-  // may be a completely synchronous operation which may change
-  // the state of the read buffer, providing enough data when
-  // before there was *not* enough.
-  //
-  // So, the steps are:
-  // 1. Figure out what the state of things will be after we do
-  // a read from the buffer.
-  //
-  // 2. If that resulting state will trigger a _read, then call _read.
-  // Note that this may be asynchronous, or synchronous.  Yes, it is
-  // deeply ugly to write APIs this way, but that still doesn't mean
-  // that the Readable class should behave improperly, as streams are
-  // designed to be sync/async agnostic.
-  // Take note if the _read call is sync or async (ie, if the read call
-  // has returned yet), so that we know whether or not it's safe to emit
-  // 'readable' etc.
-  //
-  // 3. Actually pull the requested chunks out of the buffer and return.
-
-  // if we need a readable event, then we need to do some reading.
-  var doRead = state.needReadable;
-  debug('need readable', doRead);
-
-  // if we currently have less than the highWaterMark, then also read some
-  if (state.length === 0 || state.length - n < state.highWaterMark) {
-    doRead = true;
-    debug('length less than watermark', doRead);
-  }
-
-  // however, if we've ended, then there's no point, and if we're already
-  // reading, then it's unnecessary.
-  if (state.ended || state.reading) {
-    doRead = false;
-    debug('reading or ended', doRead);
-  } else if (doRead) {
-    debug('do read');
-    state.reading = true;
-    state.sync = true;
-    // if the length is currently zero, then we *need* a readable event.
-    if (state.length === 0) state.needReadable = true;
-    // call internal read method
-    this._read(state.highWaterMark);
-    state.sync = false;
-    // If _read pushed data synchronously, then `reading` will be false,
-    // and we need to re-evaluate how much data we can return to the user.
-    if (!state.reading) n = howMuchToRead(nOrig, state);
-  }
-
-  var ret;
-  if (n > 0) ret = fromList(n, state);else ret = null;
-
-  if (ret === null) {
-    state.needReadable = true;
-    n = 0;
-  } else {
-    state.length -= n;
-  }
-
-  if (state.length === 0) {
-    // If we have nothing in the buffer, then we want to know
-    // as soon as we *do* get something into the buffer.
-    if (!state.ended) state.needReadable = true;
-
-    // If we tried to read() past the EOF, then emit end on the next tick.
-    if (nOrig !== n && state.ended) endReadable(this);
-  }
-
-  if (ret !== null) this.emit('data', ret);
-
-  return ret;
-};
-
-function onEofChunk(stream, state) {
-  if (state.ended) return;
-  if (state.decoder) {
-    var chunk = state.decoder.end();
-    if (chunk && chunk.length) {
-      state.buffer.push(chunk);
-      state.length += state.objectMode ? 1 : chunk.length;
-    }
-  }
-  state.ended = true;
-
-  // emit 'readable' now to make sure it gets picked up.
-  emitReadable(stream);
-}
-
-// Don't emit readable right away in sync mode, because this can trigger
-// another read() call => stack overflow.  This way, it might trigger
-// a nextTick recursion warning, but that's not so bad.
-function emitReadable(stream) {
-  var state = stream._readableState;
-  state.needReadable = false;
-  if (!state.emittedReadable) {
-    debug('emitReadable', state.flowing);
-    state.emittedReadable = true;
-    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);
-  }
-}
-
-function emitReadable_(stream) {
-  debug('emit readable');
-  stream.emit('readable');
-  flow(stream);
-}
-
-// at this point, the user has presumably seen the 'readable' event,
-// and called read() to consume some data.  that may have triggered
-// in turn another _read(n) call, in which case reading = true if
-// it's in progress.
-// However, if we're not ended, or reading, and the length < hwm,
-// then go ahead and try to read some more preemptively.
-function maybeReadMore(stream, state) {
-  if (!state.readingMore) {
-    state.readingMore = true;
-    pna.nextTick(maybeReadMore_, stream, state);
-  }
-}
-
-function maybeReadMore_(stream, state) {
-  var len = state.length;
-  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
-    debug('maybeReadMore read 0');
-    stream.read(0);
-    if (len === state.length)
-      // didn't get any data, stop spinning.
-      break;else len = state.length;
-  }
-  state.readingMore = false;
-}
-
-// abstract method.  to be overridden in specific implementation classes.
-// call cb(er, data) where data is <= n in length.
-// for virtual (non-string, non-buffer) streams, "length" is somewhat
-// arbitrary, and perhaps not very meaningful.
-Readable.prototype._read = function (n) {
-  this.emit('error', new Error('_read() is not implemented'));
-};
-
-Readable.prototype.pipe = function (dest, pipeOpts) {
-  var src = this;
-  var state = this._readableState;
-
-  switch (state.pipesCount) {
-    case 0:
-      state.pipes = dest;
-      break;
-    case 1:
-      state.pipes = [state.pipes, dest];
-      break;
-    default:
-      state.pipes.push(dest);
-      break;
-  }
-  state.pipesCount += 1;
-  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
-
-  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
-
-  var endFn = doEnd ? onend : unpipe;
-  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);
-
-  dest.on('unpipe', onunpipe);
-  function onunpipe(readable, unpipeInfo) {
-    debug('onunpipe');
-    if (readable === src) {
-      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
-        unpipeInfo.hasUnpiped = true;
-        cleanup();
-      }
-    }
-  }
-
-  function onend() {
-    debug('onend');
-    dest.end();
-  }
-
-  // when the dest drains, it reduces the awaitDrain counter
-  // on the source.  This would be more elegant with a .once()
-  // handler in flow(), but adding and removing repeatedly is
-  // too slow.
-  var ondrain = pipeOnDrain(src);
-  dest.on('drain', ondrain);
-
-  var cleanedUp = false;
-  function cleanup() {
-    debug('cleanup');
-    // cleanup event handlers once the pipe is broken
-    dest.removeListener('close', onclose);
-    dest.removeListener('finish', onfinish);
-    dest.removeListener('drain', ondrain);
-    dest.removeListener('error', onerror);
-    dest.removeListener('unpipe', onunpipe);
-    src.removeListener('end', onend);
-    src.removeListener('end', unpipe);
-    src.removeListener('data', ondata);
-
-    cleanedUp = true;
-
-    // if the reader is waiting for a drain event from this
-    // specific writer, then it would cause it to never start
-    // flowing again.
-    // So, if this is awaiting a drain, then we just call it now.
-    // If we don't know, then assume that we are waiting for one.
-    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
-  }
-
-  // If the user pushes more data while we're writing to dest then we'll end up
-  // in ondata again. However, we only want to increase awaitDrain once because
-  // dest will only emit one 'drain' event for the multiple writes.
-  // => Introduce a guard on increasing awaitDrain.
-  var increasedAwaitDrain = false;
-  src.on('data', ondata);
-  function ondata(chunk) {
-    debug('ondata');
-    increasedAwaitDrain = false;
-    var ret = dest.write(chunk);
-    if (false === ret && !increasedAwaitDrain) {
-      // If the user unpiped during `dest.write()`, it is possible
-      // to get stuck in a permanently paused state if that write
-      // also returned false.
-      // => Check whether `dest` is still a piping destination.
-      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
-        debug('false write response, pause', src._readableState.awaitDrain);
-        src._readableState.awaitDrain++;
-        increasedAwaitDrain = true;
-      }
-      src.pause();
-    }
-  }
-
-  // if the dest has an error, then stop piping into it.
-  // however, don't suppress the throwing behavior for this.
-  function onerror(er) {
-    debug('onerror', er);
-    unpipe();
-    dest.removeListener('error', onerror);
-    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
-  }
-
-  // Make sure our error handler is attached before userland ones.
-  prependListener(dest, 'error', onerror);
-
-  // Both close and finish should trigger unpipe, but only once.
-  function onclose() {
-    dest.removeListener('finish', onfinish);
-    unpipe();
-  }
-  dest.once('close', onclose);
-  function onfinish() {
-    debug('onfinish');
-    dest.removeListener('close', onclose);
-    unpipe();
-  }
-  dest.once('finish', onfinish);
-
-  function unpipe() {
-    debug('unpipe');
-    src.unpipe(dest);
-  }
-
-  // tell the dest that it's being piped to
-  dest.emit('pipe', src);
-
-  // start the flow if it hasn't been started already.
-  if (!state.flowing) {
-    debug('pipe resume');
-    src.resume();
-  }
-
-  return dest;
-};
-
-function pipeOnDrain(src) {
-  return function () {
-    var state = src._readableState;
-    debug('pipeOnDrain', state.awaitDrain);
-    if (state.awaitDrain) state.awaitDrain--;
-    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
-      state.flowing = true;
-      flow(src);
-    }
-  };
-}
-
-Readable.prototype.unpipe = function (dest) {
-  var state = this._readableState;
-  var unpipeInfo = { hasUnpiped: false };
-
-  // if we're not piping anywhere, then do nothing.
-  if (state.pipesCount === 0) return this;
-
-  // just one destination.  most common case.
-  if (state.pipesCount === 1) {
-    // passed in one, but it's not the right one.
-    if (dest && dest !== state.pipes) return this;
-
-    if (!dest) dest = state.pipes;
-
-    // got a match.
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-    if (dest) dest.emit('unpipe', this, unpipeInfo);
-    return this;
-  }
-
-  // slow case. multiple pipe destinations.
-
-  if (!dest) {
-    // remove all.
-    var dests = state.pipes;
-    var len = state.pipesCount;
-    state.pipes = null;
-    state.pipesCount = 0;
-    state.flowing = false;
-
-    for (var i = 0; i < len; i++) {
-      dests[i].emit('unpipe', this, unpipeInfo);
-    }return this;
-  }
-
-  // try to find the right one.
-  var index = indexOf(state.pipes, dest);
-  if (index === -1) return this;
-
-  state.pipes.splice(index, 1);
-  state.pipesCount -= 1;
-  if (state.pipesCount === 1) state.pipes = state.pipes[0];
-
-  dest.emit('unpipe', this, unpipeInfo);
-
-  return this;
-};
-
-// set up data events if they are asked for
-// Ensure readable listeners eventually get something
-Readable.prototype.on = function (ev, fn) {
-  var res = Stream.prototype.on.call(this, ev, fn);
-
-  if (ev === 'data') {
-    // Start flowing on next tick if stream isn't explicitly paused
-    if (this._readableState.flowing !== false) this.resume();
-  } else if (ev === 'readable') {
-    var state = this._readableState;
-    if (!state.endEmitted && !state.readableListening) {
-      state.readableListening = state.needReadable = true;
-      state.emittedReadable = false;
-      if (!state.reading) {
-        pna.nextTick(nReadingNextTick, this);
-      } else if (state.length) {
-        emitReadable(this);
-      }
-    }
-  }
-
-  return res;
-};
-Readable.prototype.addListener = Readable.prototype.on;
-
-function nReadingNextTick(self) {
-  debug('readable nexttick read 0');
-  self.read(0);
-}
-
-// pause() and resume() are remnants of the legacy readable stream API
-// If the user uses them, then switch into old mode.
-Readable.prototype.resume = function () {
-  var state = this._readableState;
-  if (!state.flowing) {
-    debug('resume');
-    state.flowing = true;
-    resume(this, state);
-  }
-  return this;
-};
-
-function resume(stream, state) {
-  if (!state.resumeScheduled) {
-    state.resumeScheduled = true;
-    pna.nextTick(resume_, stream, state);
-  }
-}
-
-function resume_(stream, state) {
-  if (!state.reading) {
-    debug('resume read 0');
-    stream.read(0);
-  }
-
-  state.resumeScheduled = false;
-  state.awaitDrain = 0;
-  stream.emit('resume');
-  flow(stream);
-  if (state.flowing && !state.reading) stream.read(0);
-}
-
-Readable.prototype.pause = function () {
-  debug('call pause flowing=%j', this._readableState.flowing);
-  if (false !== this._readableState.flowing) {
-    debug('pause');
-    this._readableState.flowing = false;
-    this.emit('pause');
-  }
-  return this;
-};
-
-function flow(stream) {
-  var state = stream._readableState;
-  debug('flow', state.flowing);
-  while (state.flowing && stream.read() !== null) {}
-}
-
-// wrap an old-style stream as the async data source.
-// This is *not* part of the readable stream interface.
-// It is an ugly unfortunate mess of history.
-Readable.prototype.wrap = function (stream) {
-  var _this = this;
-
-  var state = this._readableState;
-  var paused = false;
-
-  stream.on('end', function () {
-    debug('wrapped end');
-    if (state.decoder && !state.ended) {
-      var chunk = state.decoder.end();
-      if (chunk && chunk.length) _this.push(chunk);
-    }
-
-    _this.push(null);
-  });
-
-  stream.on('data', function (chunk) {
-    debug('wrapped data');
-    if (state.decoder) chunk = state.decoder.write(chunk);
-
-    // don't skip over falsy values in objectMode
-    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
-
-    var ret = _this.push(chunk);
-    if (!ret) {
-      paused = true;
-      stream.pause();
-    }
-  });
-
-  // proxy all the other methods.
-  // important when wrapping filters and duplexes.
-  for (var i in stream) {
-    if (this[i] === undefined && typeof stream[i] === 'function') {
-      this[i] = function (method) {
-        return function () {
-          return stream[method].apply(stream, arguments);
-        };
-      }(i);
-    }
-  }
-
-  // proxy certain important events.
-  for (var n = 0; n < kProxyEvents.length; n++) {
-    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
-  }
-
-  // when we try to consume some more bytes, simply unpause the
-  // underlying stream.
-  this._read = function (n) {
-    debug('wrapped _read', n);
-    if (paused) {
-      paused = false;
-      stream.resume();
-    }
-  };
-
-  return this;
-};
-
-Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._readableState.highWaterMark;
-  }
-});
-
-// exposed for testing purposes only.
-Readable._fromList = fromList;
-
-// Pluck off n bytes from an array of buffers.
-// Length is the combined lengths of all the buffers in the list.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromList(n, state) {
-  // nothing buffered
-  if (state.length === 0) return null;
-
-  var ret;
-  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
-    // read it all, truncate the list
-    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
-    state.buffer.clear();
-  } else {
-    // read part of list
-    ret = fromListPartial(n, state.buffer, state.decoder);
-  }
-
-  return ret;
-}
-
-// Extracts only enough buffered data to satisfy the amount requested.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function fromListPartial(n, list, hasStrings) {
-  var ret;
-  if (n < list.head.data.length) {
-    // slice is the same for buffers and strings
-    ret = list.head.data.slice(0, n);
-    list.head.data = list.head.data.slice(n);
-  } else if (n === list.head.data.length) {
-    // first chunk is a perfect match
-    ret = list.shift();
-  } else {
-    // result spans more than one buffer
-    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
-  }
-  return ret;
-}
-
-// Copies a specified amount of characters from the list of buffered data
-// chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBufferString(n, list) {
-  var p = list.head;
-  var c = 1;
-  var ret = p.data;
-  n -= ret.length;
-  while (p = p.next) {
-    var str = p.data;
-    var nb = n > str.length ? str.length : n;
-    if (nb === str.length) ret += str;else ret += str.slice(0, n);
-    n -= nb;
-    if (n === 0) {
-      if (nb === str.length) {
-        ++c;
-        if (p.next) list.head = p.next;else list.head = list.tail = null;
-      } else {
-        list.head = p;
-        p.data = str.slice(nb);
-      }
-      break;
-    }
-    ++c;
-  }
-  list.length -= c;
-  return ret;
-}
-
-// Copies a specified amount of bytes from the list of buffered data chunks.
-// This function is designed to be inlinable, so please take care when making
-// changes to the function body.
-function copyFromBuffer(n, list) {
-  var ret = Buffer.allocUnsafe(n);
-  var p = list.head;
-  var c = 1;
-  p.data.copy(ret);
-  n -= p.data.length;
-  while (p = p.next) {
-    var buf = p.data;
-    var nb = n > buf.length ? buf.length : n;
-    buf.copy(ret, ret.length - n, 0, nb);
-    n -= nb;
-    if (n === 0) {
-      if (nb === buf.length) {
-        ++c;
-        if (p.next) list.head = p.next;else list.head = list.tail = null;
-      } else {
-        list.head = p;
-        p.data = buf.slice(nb);
-      }
-      break;
-    }
-    ++c;
-  }
-  list.length -= c;
-  return ret;
-}
-
-function endReadable(stream) {
-  var state = stream._readableState;
-
-  // If we get here before consuming all the bytes, then that is a
-  // bug in node.  Should never happen.
-  if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
-
-  if (!state.endEmitted) {
-    state.ended = true;
-    pna.nextTick(endReadableNT, state, stream);
-  }
-}
-
-function endReadableNT(state, stream) {
-  // Check that we didn't get one last unshift.
-  if (!state.endEmitted && state.length === 0) {
-    state.endEmitted = true;
-    stream.readable = false;
-    stream.emit('end');
-  }
-}
-
-function indexOf(xs, x) {
-  for (var i = 0, l = xs.length; i < l; i++) {
-    if (xs[i] === x) return i;
-  }
-  return -1;
-}
-
-/***/ }),
-/* 407 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a transform stream is a readable/writable stream where you do
-// something with the data.  Sometimes it's called a "filter",
-// but that's not a great name for it, since that implies a thing where
-// some bits pass through, and others are simply ignored.  (That would
-// be a valid example of a transform, of course.)
-//
-// While the output is causally related to the input, it's not a
-// necessarily symmetric or synchronous transformation.  For example,
-// a zlib stream might take multiple plain-text writes(), and then
-// emit a single compressed chunk some time in the future.
-//
-// Here's how this works:
-//
-// The Transform stream has all the aspects of the readable and writable
-// stream classes.  When you write(chunk), that calls _write(chunk,cb)
-// internally, and returns false if there's a lot of pending writes
-// buffered up.  When you call read(), that calls _read(n) until
-// there's enough pending readable data buffered up.
-//
-// In a transform stream, the written data is placed in a buffer.  When
-// _read(n) is called, it transforms the queued up data, calling the
-// buffered _write cb's as it consumes chunks.  If consuming a single
-// written chunk would result in multiple output chunks, then the first
-// outputted bit calls the readcb, and subsequent chunks just go into
-// the read buffer, and will cause it to emit 'readable' if necessary.
-//
-// This way, back-pressure is actually determined by the reading side,
-// since _read has to be called to start processing a new chunk.  However,
-// a pathological inflate type of transform can cause excessive buffering
-// here.  For example, imagine a stream where every byte of input is
-// interpreted as an integer from 0-255, and then results in that many
-// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
-// 1kb of data being output.  In this case, you could write a very small
-// amount of input, and end up with a very large amount of output.  In
-// such a pathological inflating mechanism, there'd be no way to tell
-// the system to stop doing the transform.  A single 4MB write could
-// cause the system to run out of memory.
-//
-// However, even in such a pathological case, only a single written chunk
-// would be consumed, and then the rest would wait (un-transformed) until
-// the results of the previous transformed chunk were consumed.
-
-
-
-module.exports = Transform;
-
-var Duplex = __webpack_require__(115);
-
-/*<replacement>*/
-var util = __webpack_require__(113);
-util.inherits = __webpack_require__(61);
-/*</replacement>*/
-
-util.inherits(Transform, Duplex);
-
-function afterTransform(er, data) {
-  var ts = this._transformState;
-  ts.transforming = false;
-
-  var cb = ts.writecb;
-
-  if (!cb) {
-    return this.emit('error', new Error('write callback called multiple times'));
-  }
-
-  ts.writechunk = null;
-  ts.writecb = null;
-
-  if (data != null) // single equals check for both `null` and `undefined`
-    this.push(data);
-
-  cb(er);
-
-  var rs = this._readableState;
-  rs.reading = false;
-  if (rs.needReadable || rs.length < rs.highWaterMark) {
-    this._read(rs.highWaterMark);
-  }
-}
-
-function Transform(options) {
-  if (!(this instanceof Transform)) return new Transform(options);
-
-  Duplex.call(this, options);
-
-  this._transformState = {
-    afterTransform: afterTransform.bind(this),
-    needTransform: false,
-    transforming: false,
-    writecb: null,
-    writechunk: null,
-    writeencoding: null
-  };
-
-  // start out asking for a readable event once data is transformed.
-  this._readableState.needReadable = true;
-
-  // we have implemented the _read method, and done the other things
-  // that Readable wants before the first _read call, so unset the
-  // sync guard flag.
-  this._readableState.sync = false;
-
-  if (options) {
-    if (typeof options.transform === 'function') this._transform = options.transform;
-
-    if (typeof options.flush === 'function') this._flush = options.flush;
-  }
-
-  // When the writable side finishes, then flush out anything remaining.
-  this.on('prefinish', prefinish);
-}
-
-function prefinish() {
-  var _this = this;
-
-  if (typeof this._flush === 'function') {
-    this._flush(function (er, data) {
-      done(_this, er, data);
-    });
-  } else {
-    done(this, null, null);
-  }
-}
-
-Transform.prototype.push = function (chunk, encoding) {
-  this._transformState.needTransform = false;
-  return Duplex.prototype.push.call(this, chunk, encoding);
-};
-
-// This is the part where you do stuff!
-// override this function in implementation classes.
-// 'chunk' is an input chunk.
-//
-// Call `push(newChunk)` to pass along transformed output
-// to the readable side.  You may call 'push' zero or more times.
-//
-// Call `cb(err)` when you are done with this chunk.  If you pass
-// an error, then that'll put the hurt on the whole operation.  If you
-// never call cb(), then you'll never get another chunk.
-Transform.prototype._transform = function (chunk, encoding, cb) {
-  throw new Error('_transform() is not implemented');
-};
-
-Transform.prototype._write = function (chunk, encoding, cb) {
-  var ts = this._transformState;
-  ts.writecb = cb;
-  ts.writechunk = chunk;
-  ts.writeencoding = encoding;
-  if (!ts.transforming) {
-    var rs = this._readableState;
-    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
-  }
-};
-
-// Doesn't matter what the args are here.
-// _transform does all the work.
-// That we got here means that the readable side wants more data.
-Transform.prototype._read = function (n) {
-  var ts = this._transformState;
-
-  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
-    ts.transforming = true;
-    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
-  } else {
-    // mark that we need a transform, so that any data that comes in
-    // will get processed, now that we've asked for it.
-    ts.needTransform = true;
-  }
-};
-
-Transform.prototype._destroy = function (err, cb) {
-  var _this2 = this;
-
-  Duplex.prototype._destroy.call(this, err, function (err2) {
-    cb(err2);
-    _this2.emit('close');
-  });
-};
-
-function done(stream, er, data) {
-  if (er) return stream.emit('error', er);
-
-  if (data != null) // single equals check for both `null` and `undefined`
-    stream.push(data);
-
-  // if there's nothing in the write buffer, then that means
-  // that nothing more will ever be provided
-  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');
-
-  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');
-
-  return stream.push(null);
-}
-
-/***/ }),
-/* 408 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// A bit simpler than readable streams.
-// Implement an async ._write(chunk, encoding, cb), and it'll handle all
-// the drain event emission and buffering.
-
-
-
-/*<replacement>*/
-
-var pna = __webpack_require__(180);
-/*</replacement>*/
-
-module.exports = Writable;
-
-/* <replacement> */
-function WriteReq(chunk, encoding, cb) {
-  this.chunk = chunk;
-  this.encoding = encoding;
-  this.callback = cb;
-  this.next = null;
-}
-
-// It seems a linked list but it is not
-// there will be only 2 of these for each stream
-function CorkedRequest(state) {
-  var _this = this;
-
-  this.next = null;
-  this.entry = null;
-  this.finish = function () {
-    onCorkedFinish(_this, state);
-  };
-}
-/* </replacement> */
-
-/*<replacement>*/
-var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;
-/*</replacement>*/
-
-/*<replacement>*/
-var Duplex;
-/*</replacement>*/
-
-Writable.WritableState = WritableState;
-
-/*<replacement>*/
-var util = __webpack_require__(113);
-util.inherits = __webpack_require__(61);
-/*</replacement>*/
-
-/*<replacement>*/
-var internalUtil = {
-  deprecate: __webpack_require__(956)
-};
-/*</replacement>*/
-
-/*<replacement>*/
-var Stream = __webpack_require__(410);
-/*</replacement>*/
-
-/*<replacement>*/
-
-var Buffer = __webpack_require__(45).Buffer;
-var OurUint8Array = global.Uint8Array || function () {};
-function _uint8ArrayToBuffer(chunk) {
-  return Buffer.from(chunk);
-}
-function _isUint8Array(obj) {
-  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
-}
-
-/*</replacement>*/
-
-var destroyImpl = __webpack_require__(409);
-
-util.inherits(Writable, Stream);
-
-function nop() {}
-
-function WritableState(options, stream) {
-  Duplex = Duplex || __webpack_require__(115);
-
-  options = options || {};
-
-  // Duplex streams are both readable and writable, but share
-  // the same options object.
-  // However, some cases require setting options to different
-  // values for the readable and the writable sides of the duplex stream.
-  // These options can be provided separately as readableXXX and writableXXX.
-  var isDuplex = stream instanceof Duplex;
-
-  // object stream flag to indicate whether or not this stream
-  // contains buffers or objects.
-  this.objectMode = !!options.objectMode;
-
-  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
-
-  // the point at which write() starts returning false
-  // Note: 0 is a valid value, means that we always return false if
-  // the entire buffer is not flushed immediately on write()
-  var hwm = options.highWaterMark;
-  var writableHwm = options.writableHighWaterMark;
-  var defaultHwm = this.objectMode ? 16 : 16 * 1024;
-
-  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;
-
-  // cast to ints.
-  this.highWaterMark = Math.floor(this.highWaterMark);
-
-  // if _final has been called
-  this.finalCalled = false;
-
-  // drain event flag.
-  this.needDrain = false;
-  // at the start of calling end()
-  this.ending = false;
-  // when end() has been called, and returned
-  this.ended = false;
-  // when 'finish' is emitted
-  this.finished = false;
-
-  // has it been destroyed
-  this.destroyed = false;
-
-  // should we decode strings into buffers before passing to _write?
-  // this is here so that some node-core streams can optimize string
-  // handling at a lower level.
-  var noDecode = options.decodeStrings === false;
-  this.decodeStrings = !noDecode;
-
-  // Crypto is kind of old and crusty.  Historically, its default string
-  // encoding is 'binary' so we have to make this configurable.
-  // Everything else in the universe uses 'utf8', though.
-  this.defaultEncoding = options.defaultEncoding || 'utf8';
-
-  // not an actual buffer we keep track of, but a measurement
-  // of how much we're waiting to get pushed to some underlying
-  // socket or file.
-  this.length = 0;
-
-  // a flag to see when we're in the middle of a write.
-  this.writing = false;
-
-  // when true all writes will be buffered until .uncork() call
-  this.corked = 0;
-
-  // a flag to be able to tell if the onwrite cb is called immediately,
-  // or on a later tick.  We set this to true at first, because any
-  // actions that shouldn't happen until "later" should generally also
-  // not happen before the first write call.
-  this.sync = true;
-
-  // a flag to know if we're processing previously buffered items, which
-  // may call the _write() callback in the same tick, so that we don't
-  // end up in an overlapped onwrite situation.
-  this.bufferProcessing = false;
-
-  // the callback that's passed to _write(chunk,cb)
-  this.onwrite = function (er) {
-    onwrite(stream, er);
-  };
-
-  // the callback that the user supplies to write(chunk,encoding,cb)
-  this.writecb = null;
-
-  // the amount that is being written when _write is called.
-  this.writelen = 0;
-
-  this.bufferedRequest = null;
-  this.lastBufferedRequest = null;
-
-  // number of pending user-supplied write callbacks
-  // this must be 0 before 'finish' can be emitted
-  this.pendingcb = 0;
-
-  // emit prefinish if the only thing we're waiting for is _write cbs
-  // This is relevant for synchronous Transform streams
-  this.prefinished = false;
-
-  // True if the error was already emitted and should not be thrown again
-  this.errorEmitted = false;
-
-  // count buffered requests
-  this.bufferedRequestCount = 0;
-
-  // allocate the first CorkedRequest, there is always
-  // one allocated and free to use, and we maintain at most two
-  this.corkedRequestsFree = new CorkedRequest(this);
-}
-
-WritableState.prototype.getBuffer = function getBuffer() {
-  var current = this.bufferedRequest;
-  var out = [];
-  while (current) {
-    out.push(current);
-    current = current.next;
-  }
-  return out;
-};
-
-(function () {
-  try {
-    Object.defineProperty(WritableState.prototype, 'buffer', {
-      get: internalUtil.deprecate(function () {
-        return this.getBuffer();
-      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
-    });
-  } catch (_) {}
-})();
-
-// Test _writableState for inheritance to account for Duplex streams,
-// whose prototype chain only points to Readable.
-var realHasInstance;
-if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
-  realHasInstance = Function.prototype[Symbol.hasInstance];
-  Object.defineProperty(Writable, Symbol.hasInstance, {
-    value: function (object) {
-      if (realHasInstance.call(this, object)) return true;
-      if (this !== Writable) return false;
-
-      return object && object._writableState instanceof WritableState;
-    }
-  });
-} else {
-  realHasInstance = function (object) {
-    return object instanceof this;
-  };
-}
-
-function Writable(options) {
-  Duplex = Duplex || __webpack_require__(115);
-
-  // Writable ctor is applied to Duplexes, too.
-  // `realHasInstance` is necessary because using plain `instanceof`
-  // would return false, as no `_writableState` property is attached.
-
-  // Trying to use the custom `instanceof` for Writable here will also break the
-  // Node.js LazyTransform implementation, which has a non-trivial getter for
-  // `_writableState` that would lead to infinite recursion.
-  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
-    return new Writable(options);
-  }
-
-  this._writableState = new WritableState(options, this);
-
-  // legacy.
-  this.writable = true;
-
-  if (options) {
-    if (typeof options.write === 'function') this._write = options.write;
-
-    if (typeof options.writev === 'function') this._writev = options.writev;
-
-    if (typeof options.destroy === 'function') this._destroy = options.destroy;
-
-    if (typeof options.final === 'function') this._final = options.final;
-  }
-
-  Stream.call(this);
-}
-
-// Otherwise people can pipe Writable streams, which is just wrong.
-Writable.prototype.pipe = function () {
-  this.emit('error', new Error('Cannot pipe, not readable'));
-};
-
-function writeAfterEnd(stream, cb) {
-  var er = new Error('write after end');
-  // TODO: defer error events consistently everywhere, not just the cb
-  stream.emit('error', er);
-  pna.nextTick(cb, er);
-}
-
-// Checks that a user-supplied chunk is valid, especially for the particular
-// mode the stream is in. Currently this means that `null` is never accepted
-// and undefined/non-string values are only allowed in object mode.
-function validChunk(stream, state, chunk, cb) {
-  var valid = true;
-  var er = false;
-
-  if (chunk === null) {
-    er = new TypeError('May not write null values to stream');
-  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
-    er = new TypeError('Invalid non-string/buffer chunk');
-  }
-  if (er) {
-    stream.emit('error', er);
-    pna.nextTick(cb, er);
-    valid = false;
-  }
-  return valid;
-}
-
-Writable.prototype.write = function (chunk, encoding, cb) {
-  var state = this._writableState;
-  var ret = false;
-  var isBuf = !state.objectMode && _isUint8Array(chunk);
-
-  if (isBuf && !Buffer.isBuffer(chunk)) {
-    chunk = _uint8ArrayToBuffer(chunk);
-  }
-
-  if (typeof encoding === 'function') {
-    cb = encoding;
-    encoding = null;
-  }
-
-  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
-
-  if (typeof cb !== 'function') cb = nop;
-
-  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
-    state.pendingcb++;
-    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
-  }
-
-  return ret;
-};
-
-Writable.prototype.cork = function () {
-  var state = this._writableState;
-
-  state.corked++;
-};
-
-Writable.prototype.uncork = function () {
-  var state = this._writableState;
-
-  if (state.corked) {
-    state.corked--;
-
-    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
-  }
-};
-
-Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
-  // node::ParseEncoding() requires lower case.
-  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
-  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
-  this._writableState.defaultEncoding = encoding;
-  return this;
-};
-
-function decodeChunk(state, chunk, encoding) {
-  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
-    chunk = Buffer.from(chunk, encoding);
-  }
-  return chunk;
-}
-
-Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
-  // making it explicit this property is not enumerable
-  // because otherwise some prototype manipulation in
-  // userland will fail
-  enumerable: false,
-  get: function () {
-    return this._writableState.highWaterMark;
-  }
-});
-
-// if we're already writing something, then just put this
-// in the queue, and wait our turn.  Otherwise, call _write
-// If we return false, then we need a drain event, so set that flag.
-function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
-  if (!isBuf) {
-    var newChunk = decodeChunk(state, chunk, encoding);
-    if (chunk !== newChunk) {
-      isBuf = true;
-      encoding = 'buffer';
-      chunk = newChunk;
-    }
-  }
-  var len = state.objectMode ? 1 : chunk.length;
-
-  state.length += len;
-
-  var ret = state.length < state.highWaterMark;
-  // we must ensure that previous needDrain will not be reset to false.
-  if (!ret) state.needDrain = true;
-
-  if (state.writing || state.corked) {
-    var last = state.lastBufferedRequest;
-    state.lastBufferedRequest = {
-      chunk: chunk,
-      encoding: encoding,
-      isBuf: isBuf,
-      callback: cb,
-      next: null
-    };
-    if (last) {
-      last.next = state.lastBufferedRequest;
-    } else {
-      state.bufferedRequest = state.lastBufferedRequest;
-    }
-    state.bufferedRequestCount += 1;
-  } else {
-    doWrite(stream, state, false, len, chunk, encoding, cb);
-  }
-
-  return ret;
-}
-
-function doWrite(stream, state, writev, len, chunk, encoding, cb) {
-  state.writelen = len;
-  state.writecb = cb;
-  state.writing = true;
-  state.sync = true;
-  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
-  state.sync = false;
-}
-
-function onwriteError(stream, state, sync, er, cb) {
-  --state.pendingcb;
-
-  if (sync) {
-    // defer the callback if we are being called synchronously
-    // to avoid piling up things on the stack
-    pna.nextTick(cb, er);
-    // this can emit finish, and it will always happen
-    // after error
-    pna.nextTick(finishMaybe, stream, state);
-    stream._writableState.errorEmitted = true;
-    stream.emit('error', er);
-  } else {
-    // the caller expect this to happen before if
-    // it is async
-    cb(er);
-    stream._writableState.errorEmitted = true;
-    stream.emit('error', er);
-    // this can emit finish, but finish must
-    // always follow error
-    finishMaybe(stream, state);
-  }
-}
-
-function onwriteStateUpdate(state) {
-  state.writing = false;
-  state.writecb = null;
-  state.length -= state.writelen;
-  state.writelen = 0;
-}
-
-function onwrite(stream, er) {
-  var state = stream._writableState;
-  var sync = state.sync;
-  var cb = state.writecb;
-
-  onwriteStateUpdate(state);
-
-  if (er) onwriteError(stream, state, sync, er, cb);else {
-    // Check if we're actually ready to finish, but don't emit yet
-    var finished = needFinish(state);
-
-    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
-      clearBuffer(stream, state);
-    }
-
-    if (sync) {
-      /*<replacement>*/
-      asyncWrite(afterWrite, stream, state, finished, cb);
-      /*</replacement>*/
-    } else {
-      afterWrite(stream, state, finished, cb);
-    }
-  }
-}
-
-function afterWrite(stream, state, finished, cb) {
-  if (!finished) onwriteDrain(stream, state);
-  state.pendingcb--;
-  cb();
-  finishMaybe(stream, state);
-}
-
-// Must force callback to be called on nextTick, so that we don't
-// emit 'drain' before the write() consumer gets the 'false' return
-// value, and has a chance to attach a 'drain' listener.
-function onwriteDrain(stream, state) {
-  if (state.length === 0 && state.needDrain) {
-    state.needDrain = false;
-    stream.emit('drain');
-  }
-}
-
-// if there's something in the buffer waiting, then process it
-function clearBuffer(stream, state) {
-  state.bufferProcessing = true;
-  var entry = state.bufferedRequest;
-
-  if (stream._writev && entry && entry.next) {
-    // Fast case, write everything using _writev()
-    var l = state.bufferedRequestCount;
-    var buffer = new Array(l);
-    var holder = state.corkedRequestsFree;
-    holder.entry = entry;
-
-    var count = 0;
-    var allBuffers = true;
-    while (entry) {
-      buffer[count] = entry;
-      if (!entry.isBuf) allBuffers = false;
-      entry = entry.next;
-      count += 1;
-    }
-    buffer.allBuffers = allBuffers;
-
-    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
-
-    // doWrite is almost always async, defer these to save a bit of time
-    // as the hot path ends with doWrite
-    state.pendingcb++;
-    state.lastBufferedRequest = null;
-    if (holder.next) {
-      state.corkedRequestsFree = holder.next;
-      holder.next = null;
-    } else {
-      state.corkedRequestsFree = new CorkedRequest(state);
-    }
-    state.bufferedRequestCount = 0;
-  } else {
-    // Slow case, write chunks one-by-one
-    while (entry) {
-      var chunk = entry.chunk;
-      var encoding = entry.encoding;
-      var cb = entry.callback;
-      var len = state.objectMode ? 1 : chunk.length;
-
-      doWrite(stream, state, false, len, chunk, encoding, cb);
-      entry = entry.next;
-      state.bufferedRequestCount--;
-      // if we didn't call the onwrite immediately, then
-      // it means that we need to wait until it does.
-      // also, that means that the chunk and cb are currently
-      // being processed, so move the buffer counter past them.
-      if (state.writing) {
-        break;
-      }
-    }
-
-    if (entry === null) state.lastBufferedRequest = null;
-  }
-
-  state.bufferedRequest = entry;
-  state.bufferProcessing = false;
-}
-
-Writable.prototype._write = function (chunk, encoding, cb) {
-  cb(new Error('_write() is not implemented'));
-};
-
-Writable.prototype._writev = null;
-
-Writable.prototype.end = function (chunk, encoding, cb) {
-  var state = this._writableState;
-
-  if (typeof chunk === 'function') {
-    cb = chunk;
-    chunk = null;
-    encoding = null;
-  } else if (typeof encoding === 'function') {
-    cb = encoding;
-    encoding = null;
-  }
-
-  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
-
-  // .end() fully uncorks
-  if (state.corked) {
-    state.corked = 1;
-    this.uncork();
-  }
-
-  // ignore unnecessary end() calls.
-  if (!state.ending && !state.finished) endWritable(this, state, cb);
-};
-
-function needFinish(state) {
-  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
-}
-function callFinal(stream, state) {
-  stream._final(function (err) {
-    state.pendingcb--;
-    if (err) {
-      stream.emit('error', err);
-    }
-    state.prefinished = true;
-    stream.emit('prefinish');
-    finishMaybe(stream, state);
-  });
-}
-function prefinish(stream, state) {
-  if (!state.prefinished && !state.finalCalled) {
-    if (typeof stream._final === 'function') {
-      state.pendingcb++;
-      state.finalCalled = true;
-      pna.nextTick(callFinal, stream, state);
-    } else {
-      state.prefinished = true;
-      stream.emit('prefinish');
-    }
-  }
-}
-
-function finishMaybe(stream, state) {
-  var need = needFinish(state);
-  if (need) {
-    prefinish(stream, state);
-    if (state.pendingcb === 0) {
-      state.finished = true;
-      stream.emit('finish');
-    }
-  }
-  return need;
-}
-
-function endWritable(stream, state, cb) {
-  state.ending = true;
-  finishMaybe(stream, state);
-  if (cb) {
-    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);
-  }
-  state.ended = true;
-  stream.writable = false;
-}
-
-function onCorkedFinish(corkReq, state, err) {
-  var entry = corkReq.entry;
-  corkReq.entry = null;
-  while (entry) {
-    var cb = entry.callback;
-    state.pendingcb--;
-    cb(err);
-    entry = entry.next;
-  }
-  if (state.corkedRequestsFree) {
-    state.corkedRequestsFree.next = corkReq;
-  } else {
-    state.corkedRequestsFree = corkReq;
-  }
-}
-
-Object.defineProperty(Writable.prototype, 'destroyed', {
-  get: function () {
-    if (this._writableState === undefined) {
-      return false;
-    }
-    return this._writableState.destroyed;
-  },
-  set: function (value) {
-    // we ignore the value if the stream
-    // has not been initialized yet
-    if (!this._writableState) {
-      return;
-    }
-
-    // backward compatibility, the user is explicitly
-    // managing destroyed
-    this._writableState.destroyed = value;
-  }
-});
-
-Writable.prototype.destroy = destroyImpl.destroy;
-Writable.prototype._undestroy = destroyImpl.undestroy;
-Writable.prototype._destroy = function (err, cb) {
-  this.end();
-  cb(err);
-};
-
-/***/ }),
-/* 409 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/*<replacement>*/
-
-var pna = __webpack_require__(180);
-/*</replacement>*/
-
-// undocumented cb() API, needed for core, not for public API
-function destroy(err, cb) {
-  var _this = this;
-
-  var readableDestroyed = this._readableState && this._readableState.destroyed;
-  var writableDestroyed = this._writableState && this._writableState.destroyed;
-
-  if (readableDestroyed || writableDestroyed) {
-    if (cb) {
-      cb(err);
-    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {
-      pna.nextTick(emitErrorNT, this, err);
-    }
-    return this;
-  }
-
-  // we set destroyed to true before firing error callbacks in order
-  // to make it re-entrance safe in case destroy() is called within callbacks
-
-  if (this._readableState) {
-    this._readableState.destroyed = true;
-  }
-
-  // if this is a duplex stream mark the writable part as destroyed as well
-  if (this._writableState) {
-    this._writableState.destroyed = true;
-  }
-
-  this._destroy(err || null, function (err) {
-    if (!cb && err) {
-      pna.nextTick(emitErrorNT, _this, err);
-      if (_this._writableState) {
-        _this._writableState.errorEmitted = true;
-      }
-    } else if (cb) {
-      cb(err);
-    }
-  });
-
-  return this;
-}
-
-function undestroy() {
-  if (this._readableState) {
-    this._readableState.destroyed = false;
-    this._readableState.reading = false;
-    this._readableState.ended = false;
-    this._readableState.endEmitted = false;
-  }
-
-  if (this._writableState) {
-    this._writableState.destroyed = false;
-    this._writableState.ended = false;
-    this._writableState.ending = false;
-    this._writableState.finished = false;
-    this._writableState.errorEmitted = false;
-  }
-}
-
-function emitErrorNT(self, err) {
-  self.emit('error', err);
-}
-
-module.exports = {
-  destroy: destroy,
-  undestroy: undestroy
-};
-
-/***/ }),
-/* 410 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(23);
-
-
-/***/ }),
-/* 411 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * repeat-element <https://github.com/jonschlinkert/repeat-element>
- *
- * Copyright (c) 2015 Jon Schlinkert.
- * Licensed under the MIT license.
- */
-
-
-
-module.exports = function repeat(ele, num) {
-  var arr = new Array(num);
-
-  for (var i = 0; i < num; i++) {
-    arr[i] = ele;
-  }
-
-  return arr;
-};
-
-
-/***/ }),
-/* 412 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var tough = __webpack_require__(810)
-
-var Cookie = tough.Cookie
-var CookieJar = tough.CookieJar
-
-exports.parse = function (str) {
-  if (str && str.uri) {
-    str = str.uri
-  }
-  if (typeof str !== 'string') {
-    throw new Error('The cookie function only accepts STRING as param')
-  }
-  return Cookie.parse(str, {loose: true})
-}
-
-// Adapt the sometimes-Async api of tough.CookieJar to our requirements
-function RequestJar (store) {
-  var self = this
-  self._jar = new CookieJar(store, {looseMode: true})
-}
-RequestJar.prototype.setCookie = function (cookieOrStr, uri, options) {
-  var self = this
-  return self._jar.setCookieSync(cookieOrStr, uri, options || {})
-}
-RequestJar.prototype.getCookieString = function (uri) {
-  var self = this
-  return self._jar.getCookieStringSync(uri)
-}
-RequestJar.prototype.getCookies = function (uri) {
-  var self = this
-  return self._jar.getCookiesSync(uri)
-}
-
-exports.jar = function (store) {
-  return new RequestJar(store)
-}
-
-
-/***/ }),
-/* 413 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * Copyright (c) 2015, Salesforce.com, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of Salesforce.com nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * "A request-path path-matches a given cookie-path if at least one of the
- * following conditions holds:"
- */
-function pathMatch (reqPath, cookiePath) {
-  // "o  The cookie-path and the request-path are identical."
-  if (cookiePath === reqPath) {
-    return true;
-  }
-
-  var idx = reqPath.indexOf(cookiePath);
-  if (idx === 0) {
-    // "o  The cookie-path is a prefix of the request-path, and the last
-    // character of the cookie-path is %x2F ("/")."
-    if (cookiePath.substr(-1) === "/") {
-      return true;
-    }
-
-    // " o  The cookie-path is a prefix of the request-path, and the first
-    // character of the request-path that is not included in the cookie- path
-    // is a %x2F ("/") character."
-    if (reqPath.substr(cookiePath.length, 1) === "/") {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-exports.pathMatch = pathMatch;
-
-
-/***/ }),
-/* 414 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * Copyright (c) 2015, Salesforce.com, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of Salesforce.com nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-var pubsuffix = __webpack_require__(415);
-
-// Gives the permutation of all possible domainMatch()es of a given domain. The
-// array is in shortest-to-longest order.  Handy for indexing.
-function permuteDomain (domain) {
-  var pubSuf = pubsuffix.getPublicSuffix(domain);
-  if (!pubSuf) {
-    return null;
-  }
-  if (pubSuf == domain) {
-    return [domain];
-  }
-
-  var prefix = domain.slice(0, -(pubSuf.length + 1)); // ".example.com"
-  var parts = prefix.split('.').reverse();
-  var cur = pubSuf;
-  var permutations = [cur];
-  while (parts.length) {
-    cur = parts.shift() + '.' + cur;
-    permutations.push(cur);
-  }
-  return permutations;
-}
-
-exports.permuteDomain = permuteDomain;
-
-
-/***/ }),
-/* 415 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/****************************************************
- * AUTOMATICALLY GENERATED by generate-pubsuffix.js *
- *                  DO NOT EDIT!                    *
- ****************************************************/
-
-
-
-var punycode = __webpack_require__(332);
-
-module.exports.getPublicSuffix = function getPublicSuffix(domain) {
-  /*!
-   * Copyright (c) 2015, Salesforce.com, Inc.
-   * All rights reserved.
-   *
-   * Redistribution and use in source and binary forms, with or without
-   * modification, are permitted provided that the following conditions are met:
-   *
-   * 1. Redistributions of source code must retain the above copyright notice,
-   * this list of conditions and the following disclaimer.
-   *
-   * 2. Redistributions in binary form must reproduce the above copyright notice,
-   * this list of conditions and the following disclaimer in the documentation
-   * and/or other materials provided with the distribution.
-   *
-   * 3. Neither the name of Salesforce.com nor the names of its contributors may
-   * be used to endorse or promote products derived from this software without
-   * specific prior written permission.
-   *
-   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-   * POSSIBILITY OF SUCH DAMAGE.
-   */
-  if (!domain) {
-    return null;
-  }
-  if (domain.match(/^\./)) {
-    return null;
-  }
-  var asciiDomain = punycode.toASCII(domain);
-  var converted = false;
-  if (asciiDomain !== domain) {
-    domain = asciiDomain;
-    converted = true;
-  }
-  if (index[domain]) {
-    return null;
-  }
-
-  domain = domain.toLowerCase();
-  var parts = domain.split('.').reverse();
-
-  var suffix = '';
-  var suffixLen = 0;
-  for (var i=0; i<parts.length; i++) {
-    var part = parts[i];
-    var starstr = '*'+suffix;
-    var partstr = part+suffix;
-
-    if (index[starstr]) { // star rule matches
-      suffixLen = i+1;
-      if (index[partstr] === false) { // exception rule matches (NB: false, not undefined)
-        suffixLen--;
-      }
-    } else if (index[partstr]) { // exact match, not exception
-      suffixLen = i+1;
-    }
-
-    suffix = '.'+partstr;
-  }
-
-  if (index['*'+suffix]) { // *.domain exists (e.g. *.kyoto.jp for domain='kyoto.jp');
-    return null;
-  }
-
-  suffixLen = suffixLen || 1;
-  if (parts.length > suffixLen) {
-    var publicSuffix = parts.slice(0,suffixLen+1).reverse().join('.');
-    return converted ? punycode.toUnicode(publicSuffix) : publicSuffix;
-  }
-
-  return null;
-};
-
-// The following generated structure is used under the MPL version 2.0
-// See public-suffix.txt for more information
-
-var index = module.exports.index = Object.freeze(
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-"use strict";
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-function distinctUntilChanged(compare, keySelector) {
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-function groupBy(keySelector, elementSelector, durationSelector, subjectSelector) {
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-"use strict";
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-/***/ (function(module, exports) {
-
-module.exports = ["0BSD","AAL","Abstyles","Adobe-2006","Adobe-Glyph","ADSL","AFL-1.1","AFL-1.2","AFL-2.0","AFL-2.1","AFL-3.0","Afmparse","AGPL-1.0","AGPL-3.0-only","AGPL-3.0-or-later","Aladdin","AMDPLPA","AML","AMPAS","ANTLR-PD","Apache-1.0","Apache-1.1","Apache-2.0","APAFML","APL-1.0","APSL-1.0","APSL-1.1","APSL-1.2","APSL-2.0","Artistic-1.0-cl8","Artistic-1.0-Perl","Artistic-1.0","Artistic-2.0","Bahyph","Barr","Beerware","BitTorrent-1.0","BitTorrent-1.1","Borceux","BSD-1-Clause","BSD-2-Clause-FreeBSD","BSD-2-Clause-NetBSD","BSD-2-Clause-Patent","BSD-2-Clause","BSD-3-Clause-Attribution","BSD-3-Clause-Clear","BSD-3-Clause-LBNL","BSD-3-Clause-No-Nuclear-License-2014","BSD-3-Clause-No-Nuclear-License","BSD-3-Clause-No-Nuclear-Warranty","BSD-3-Clause","BSD-4-Clause-UC","BSD-4-Clause","BSD-Protection","BSD-Source-Code","BSL-1.0","bzip2-1.0.5","bzip2-1.0.6","Caldera","CATOSL-1.1","CC-BY-1.0","CC-BY-2.0","CC-BY-2.5","CC-BY-3.0","CC-BY-4.0","CC-BY-NC-1.0","CC-BY-NC-2.0","CC-BY-NC-2.5","CC-BY-NC-3.0","CC-BY-NC-4.0","CC-BY-NC-ND-1.0","CC-BY-NC-ND-2.0","CC-BY-NC-ND-2.5","CC-BY-NC-ND-3.0","CC-BY-NC-ND-4.0","CC-BY-NC-SA-1.0","CC-BY-NC-SA-2.0","CC-BY-NC-SA-2.5","CC-BY-NC-SA-3.0","CC-BY-NC-SA-4.0","CC-BY-ND-1.0","CC-BY-ND-2.0","CC-BY-ND-2.5","CC-BY-ND-3.0","CC-BY-ND-4.0","CC-BY-SA-1.0","CC-BY-SA-2.0","CC-BY-SA-2.5","CC-BY-SA-3.0","CC-BY-SA-4.0","CC0-1.0","CDDL-1.0","CDDL-1.1","CDLA-Permissive-1.0","CDLA-Sharing-1.0","CECILL-1.0","CECILL-1.1","CECILL-2.0","CECILL-2.1","CECILL-B","CECILL-C","ClArtistic","CNRI-Jython","CNRI-Python-GPL-Compatible","CNRI-Python","Condor-1.1","CPAL-1.0","CPL-1.0","CPOL-1.02","Crossword","CrystalStacker","CUA-OPL-1.0","Cube","curl","D-FSL-1.0","diffmark","DOC","Dotseqn","DSDP","dvipdfm","ECL-1.0","ECL-2.0","EFL-1.0","EFL-2.0","eGenix","Entessa","EPL-1.0","EPL-2.0","ErlPL-1.1","EUDatagrid","EUPL-1.0","EUPL-1.1","EUPL-1.2","Eurosym","Fair","Frameworx-1.0","FreeImage","FSFAP","FSFUL","FSFULLR","FTL","GFDL-1.1-only","GFDL-1.1-or-later","GFDL-1.2-only","GFDL-1.2-or-later","GFDL-1.3-only","GFDL-1.3-or-later","Giftware","GL2PS","Glide","Glulxe","gnuplot","GPL-1.0-only","GPL-1.0-or-later","GPL-2.0-only","GPL-2.0-or-later","GPL-3.0-only","GPL-3.0-or-later","gSOAP-1.3b","HaskellReport","HPND","IBM-pibs","ICU","IJG","ImageMagick","iMatix","Imlib2","Info-ZIP","Intel-ACPI","Intel","Interbase-1.0","IPA","IPL-1.0","ISC","JasPer-2.0","JSON","LAL-1.2","LAL-1.3","Latex2e","Leptonica","LGPL-2.0-only","LGPL-2.0-or-later","LGPL-2.1-only","LGPL-2.1-or-later","LGPL-3.0-only","LGPL-3.0-or-later","LGPLLR","Libpng","libtiff","LiLiQ-P-1.1","LiLiQ-R-1.1","LiLiQ-Rplus-1.1","LPL-1.0","LPL-1.02","LPPL-1.0","LPPL-1.1","LPPL-1.2","LPPL-1.3a","LPPL-1.3c","MakeIndex","MirOS","MIT-advertising","MIT-CMU","MIT-enna","MIT-feh","MIT","MITNFA","Motosoto","mpich2","MPL-1.0","MPL-1.1","MPL-2.0-no-copyleft-exception","MPL-2.0","MS-PL","MS-RL","MTLL","Multics","Mup","NASA-1.3","Naumen","NBPL-1.0","NCSA","Net-SNMP","NetCDF","Newsletr","NGPL","NLOD-1.0","NLPL","Nokia","NOSL","Noweb","NPL-1.0","NPL-1.1","NPOSL-3.0","NRL","NTP","OCCT-PL","OCLC-2.0","ODbL-1.0","OFL-1.0","OFL-1.1","OGTSL","OLDAP-1.1","OLDAP-1.2","OLDAP-1.3","OLDAP-1.4","OLDAP-2.0.1","OLDAP-2.0","OLDAP-2.1","OLDAP-2.2.1","OLDAP-2.2.2","OLDAP-2.2","OLDAP-2.3","OLDAP-2.4","OLDAP-2.5","OLDAP-2.6","OLDAP-2.7","OLDAP-2.8","OML","OpenSSL","OPL-1.0","OSET-PL-2.1","OSL-1.0","OSL-1.1","OSL-2.0","OSL-2.1","OSL-3.0","PDDL-1.0","PHP-3.0","PHP-3.01","Plexus","PostgreSQL","psfrag","psutils","Python-2.0","Qhull","QPL-1.0","Rdisc","RHeCos-1.1","RPL-1.1","RPL-1.5","RPSL-1.0","RSA-MD","RSCPL","Ruby","SAX-PD","Saxpath","SCEA","Sendmail","SGI-B-1.0","SGI-B-1.1","SGI-B-2.0","SimPL-2.0","SISSL-1.2","SISSL","Sleepycat","SMLNJ","SMPPL","SNIA","Spencer-86","Spencer-94","Spencer-99","SPL-1.0","SugarCRM-1.1.3","SWL","TCL","TCP-wrappers","TMate","TORQUE-1.1","TOSL","Unicode-DFS-2015","Unicode-DFS-2016","Unicode-TOU","Unlicense","UPL-1.0","Vim","VOSTROM","VSL-1.0","W3C-19980720","W3C-20150513","W3C","Watcom-1.0","Wsuipa","WTFPL","X11","Xerox","XFree86-1.1","xinetd","Xnet","xpp","XSkat","YPL-1.0","YPL-1.1","Zed","Zend-2.0","Zimbra-1.3","Zimbra-1.4","zlib-acknowledgement","Zlib","ZPL-1.1","ZPL-2.0","ZPL-2.1"]
-
-/***/ }),
-/* 454 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	Verifier: Verifier,
-	Signer: Signer
-};
-
-var nacl;
-var stream = __webpack_require__(23);
-var util = __webpack_require__(3);
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var Signature = __webpack_require__(75);
-
-function Verifier(key, hashAlgo) {
-	if (nacl === undefined)
-		nacl = __webpack_require__(76);
-
-	if (hashAlgo.toLowerCase() !== 'sha512')
-		throw (new Error('ED25519 only supports the use of ' +
-		    'SHA-512 hashes'));
-
-	this.key = key;
-	this.chunks = [];
-
-	stream.Writable.call(this, {});
-}
-util.inherits(Verifier, stream.Writable);
-
-Verifier.prototype._write = function (chunk, enc, cb) {
-	this.chunks.push(chunk);
-	cb();
-};
-
-Verifier.prototype.update = function (chunk) {
-	if (typeof (chunk) === 'string')
-		chunk = Buffer.from(chunk, 'binary');
-	this.chunks.push(chunk);
-};
-
-Verifier.prototype.verify = function (signature, fmt) {
-	var sig;
-	if (Signature.isSignature(signature, [2, 0])) {
-		if (signature.type !== 'ed25519')
-			return (false);
-		sig = signature.toBuffer('raw');
-
-	} else if (typeof (signature) === 'string') {
-		sig = Buffer.from(signature, 'base64');
-
-	} else if (Signature.isSignature(signature, [1, 0])) {
-		throw (new Error('signature was created by too old ' +
-		    'a version of sshpk and cannot be verified'));
-	}
-
-	assert.buffer(sig);
-	return (nacl.sign.detached.verify(
-	    new Uint8Array(Buffer.concat(this.chunks)),
-	    new Uint8Array(sig),
-	    new Uint8Array(this.key.part.A.data)));
-};
-
-function Signer(key, hashAlgo) {
-	if (nacl === undefined)
-		nacl = __webpack_require__(76);
-
-	if (hashAlgo.toLowerCase() !== 'sha512')
-		throw (new Error('ED25519 only supports the use of ' +
-		    'SHA-512 hashes'));
-
-	this.key = key;
-	this.chunks = [];
-
-	stream.Writable.call(this, {});
-}
-util.inherits(Signer, stream.Writable);
-
-Signer.prototype._write = function (chunk, enc, cb) {
-	this.chunks.push(chunk);
-	cb();
-};
-
-Signer.prototype.update = function (chunk) {
-	if (typeof (chunk) === 'string')
-		chunk = Buffer.from(chunk, 'binary');
-	this.chunks.push(chunk);
-};
-
-Signer.prototype.sign = function () {
-	var sig = nacl.sign.detached(
-	    new Uint8Array(Buffer.concat(this.chunks)),
-	    new Uint8Array(Buffer.concat([
-		this.key.part.k.data, this.key.part.A.data])));
-	var sigBuf = Buffer.from(sig);
-	var sigObj = Signature.parse(sigBuf, 'ed25519', 'raw');
-	sigObj.hashAlgorithm = 'sha512';
-	return (sigObj);
-};
-
-
-/***/ }),
-/* 455 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-
-var pem = __webpack_require__(86);
-var ssh = __webpack_require__(456);
-var rfc4253 = __webpack_require__(103);
-var dnssec = __webpack_require__(326);
-
-var DNSSEC_PRIVKEY_HEADER_PREFIX = 'Private-key-format: v1';
-
-function read(buf, options) {
-	if (typeof (buf) === 'string') {
-		if (buf.trim().match(/^[-]+[ ]*BEGIN/))
-			return (pem.read(buf, options));
-		if (buf.match(/^\s*ssh-[a-z]/))
-			return (ssh.read(buf, options));
-		if (buf.match(/^\s*ecdsa-/))
-			return (ssh.read(buf, options));
-		if (findDNSSECHeader(buf))
-			return (dnssec.read(buf, options));
-		buf = Buffer.from(buf, 'binary');
-	} else {
-		assert.buffer(buf);
-		if (findPEMHeader(buf))
-			return (pem.read(buf, options));
-		if (findSSHHeader(buf))
-			return (ssh.read(buf, options));
-		if (findDNSSECHeader(buf))
-			return (dnssec.read(buf, options));
-	}
-	if (buf.readUInt32BE(0) < buf.length)
-		return (rfc4253.read(buf, options));
-	throw (new Error('Failed to auto-detect format of key'));
-}
-
-function findSSHHeader(buf) {
-	var offset = 0;
-	while (offset < buf.length &&
-	    (buf[offset] === 32 || buf[offset] === 10 || buf[offset] === 9))
-		++offset;
-	if (offset + 4 <= buf.length &&
-	    buf.slice(offset, offset + 4).toString('ascii') === 'ssh-')
-		return (true);
-	if (offset + 6 <= buf.length &&
-	    buf.slice(offset, offset + 6).toString('ascii') === 'ecdsa-')
-		return (true);
-	return (false);
-}
-
-function findPEMHeader(buf) {
-	var offset = 0;
-	while (offset < buf.length &&
-	    (buf[offset] === 32 || buf[offset] === 10))
-		++offset;
-	if (buf[offset] !== 45)
-		return (false);
-	while (offset < buf.length &&
-	    (buf[offset] === 45))
-		++offset;
-	while (offset < buf.length &&
-	    (buf[offset] === 32))
-		++offset;
-	if (offset + 5 > buf.length ||
-	    buf.slice(offset, offset + 5).toString('ascii') !== 'BEGIN')
-		return (false);
-	return (true);
-}
-
-function findDNSSECHeader(buf) {
-	// private case first
-	if (buf.length <= DNSSEC_PRIVKEY_HEADER_PREFIX.length)
-		return (false);
-	var headerCheck = buf.slice(0, DNSSEC_PRIVKEY_HEADER_PREFIX.length);
-	if (headerCheck.toString('ascii') === DNSSEC_PRIVKEY_HEADER_PREFIX)
-		return (true);
-
-	// public-key RFC3110 ?
-	// 'domain.com. IN KEY ...' or 'domain.com. IN DNSKEY ...'
-	// skip any comment-lines
-	if (typeof (buf) !== 'string') {
-		buf = buf.toString('ascii');
-	}
-	var lines = buf.split('\n');
-	var line = 0;
-	/* JSSTYLED */
-	while (lines[line].match(/^\;/))
-		line++;
-	if (lines[line].toString('ascii').match(/\. IN KEY /))
-		return (true);
-	if (lines[line].toString('ascii').match(/\. IN DNSKEY /))
-		return (true);
-	return (false);
-}
-
-function write(key, options) {
-	throw (new Error('"auto" format cannot be used for writing'));
-}
-
-
-/***/ }),
-/* 456 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var Buffer = __webpack_require__(15).Buffer;
-var rfc4253 = __webpack_require__(103);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-
-var sshpriv = __webpack_require__(192);
-
-/*JSSTYLED*/
-var SSHKEY_RE = /^([a-z0-9-]+)[ \t]+([a-zA-Z0-9+\/]+[=]*)([ \t]+([^ \t][^\n]*[\n]*)?)?$/;
-/*JSSTYLED*/
-var SSHKEY_RE2 = /^([a-z0-9-]+)[ \t\n]+([a-zA-Z0-9+\/][a-zA-Z0-9+\/ \t\n=]*)([^a-zA-Z0-9+\/ \t\n=].*)?$/;
-
-function read(buf, options) {
-	if (typeof (buf) !== 'string') {
-		assert.buffer(buf, 'buf');
-		buf = buf.toString('ascii');
-	}
-
-	var trimmed = buf.trim().replace(/[\\\r]/g, '');
-	var m = trimmed.match(SSHKEY_RE);
-	if (!m)
-		m = trimmed.match(SSHKEY_RE2);
-	assert.ok(m, 'key must match regex');
-
-	var type = rfc4253.algToKeyType(m[1]);
-	var kbuf = Buffer.from(m[2], 'base64');
-
-	/*
-	 * This is a bit tricky. If we managed to parse the key and locate the
-	 * key comment with the regex, then do a non-partial read and assert
-	 * that we have consumed all bytes. If we couldn't locate the key
-	 * comment, though, there may be whitespace shenanigans going on that
-	 * have conjoined the comment to the rest of the key. We do a partial
-	 * read in this case to try to make the best out of a sorry situation.
-	 */
-	var key;
-	var ret = {};
-	if (m[4]) {
-		try {
-			key = rfc4253.read(kbuf);
-
-		} catch (e) {
-			m = trimmed.match(SSHKEY_RE2);
-			assert.ok(m, 'key must match regex');
-			kbuf = Buffer.from(m[2], 'base64');
-			key = rfc4253.readInternal(ret, 'public', kbuf);
-		}
-	} else {
-		key = rfc4253.readInternal(ret, 'public', kbuf);
-	}
-
-	assert.strictEqual(type, key.type);
-
-	if (m[4] && m[4].length > 0) {
-		key.comment = m[4];
-
-	} else if (ret.consumed) {
-		/*
-		 * Now the magic: trying to recover the key comment when it's
-		 * gotten conjoined to the key or otherwise shenanigan'd.
-		 *
-		 * Work out how much base64 we used, then drop all non-base64
-		 * chars from the beginning up to this point in the the string.
-		 * Then offset in this and try to make up for missing = chars.
-		 */
-		var data = m[2] + (m[3] ? m[3] : '');
-		var realOffset = Math.ceil(ret.consumed / 3) * 4;
-		data = data.slice(0, realOffset - 2). /*JSSTYLED*/
-		    replace(/[^a-zA-Z0-9+\/=]/g, '') +
-		    data.slice(realOffset - 2);
-
-		var padding = ret.consumed % 3;
-		if (padding > 0 &&
-		    data.slice(realOffset - 1, realOffset) !== '=')
-			realOffset--;
-		while (data.slice(realOffset, realOffset + 1) === '=')
-			realOffset++;
-
-		/* Finally, grab what we think is the comment & clean it up. */
-		var trailer = data.slice(realOffset);
-		trailer = trailer.replace(/[\r\n]/g, ' ').
-		    replace(/^\s+/, '');
-		if (trailer.match(/^[a-zA-Z0-9]/))
-			key.comment = trailer;
-	}
-
-	return (key);
-}
-
-function write(key, options) {
-	assert.object(key);
-	if (!Key.isKey(key))
-		throw (new Error('Must be a public key'));
-
-	var parts = [];
-	var alg = rfc4253.keyTypeToAlg(key);
-	parts.push(alg);
-
-	var buf = rfc4253.write(key);
-	parts.push(buf.toString('base64'));
-
-	if (key.comment)
-		parts.push(key.comment);
-
-	return (Buffer.from(parts.join(' ')));
-}
-
-
-/***/ }),
-/* 457 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	verify: verify,
-	sign: sign,
-	signAsync: signAsync,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var pem = __webpack_require__(86);
-var Identity = __webpack_require__(158);
-var Signature = __webpack_require__(75);
-var Certificate = __webpack_require__(155);
-var pkcs8 = __webpack_require__(157);
-
-/*
- * This file is based on RFC5280 (X.509).
- */
-
-/* Helper to read in a single mpint */
-function readMPInt(der, nm) {
-	assert.strictEqual(der.peek(), asn1.Ber.Integer,
-	    nm + ' is not an Integer');
-	return (utils.mpNormalize(der.readString(asn1.Ber.Integer, true)));
-}
-
-function verify(cert, key) {
-	var sig = cert.signatures.x509;
-	assert.object(sig, 'x509 signature');
-
-	var algParts = sig.algo.split('-');
-	if (algParts[0] !== key.type)
-		return (false);
-
-	var blob = sig.cache;
-	if (blob === undefined) {
-		var der = new asn1.BerWriter();
-		writeTBSCert(cert, der);
-		blob = der.buffer;
-	}
-
-	var verifier = key.createVerify(algParts[1]);
-	verifier.write(blob);
-	return (verifier.verify(sig.signature));
-}
-
-function Local(i) {
-	return (asn1.Ber.Context | asn1.Ber.Constructor | i);
-}
-
-function Context(i) {
-	return (asn1.Ber.Context | i);
-}
-
-var SIGN_ALGS = {
-	'rsa-md5': '1.2.840.113549.1.1.4',
-	'rsa-sha1': '1.2.840.113549.1.1.5',
-	'rsa-sha256': '1.2.840.113549.1.1.11',
-	'rsa-sha384': '1.2.840.113549.1.1.12',
-	'rsa-sha512': '1.2.840.113549.1.1.13',
-	'dsa-sha1': '1.2.840.10040.4.3',
-	'dsa-sha256': '2.16.840.1.101.3.4.3.2',
-	'ecdsa-sha1': '1.2.840.10045.4.1',
-	'ecdsa-sha256': '1.2.840.10045.4.3.2',
-	'ecdsa-sha384': '1.2.840.10045.4.3.3',
-	'ecdsa-sha512': '1.2.840.10045.4.3.4',
-	'ed25519-sha512': '1.3.101.112'
-};
-Object.keys(SIGN_ALGS).forEach(function (k) {
-	SIGN_ALGS[SIGN_ALGS[k]] = k;
-});
-SIGN_ALGS['1.3.14.3.2.3'] = 'rsa-md5';
-SIGN_ALGS['1.3.14.3.2.29'] = 'rsa-sha1';
-
-var EXTS = {
-	'issuerKeyId': '2.5.29.35',
-	'altName': '2.5.29.17',
-	'basicConstraints': '2.5.29.19',
-	'keyUsage': '2.5.29.15',
-	'extKeyUsage': '2.5.29.37'
-};
-
-function read(buf, options) {
-	if (typeof (buf) === 'string') {
-		buf = Buffer.from(buf, 'binary');
-	}
-	assert.buffer(buf, 'buf');
-
-	var der = new asn1.BerReader(buf);
-
-	der.readSequence();
-	if (Math.abs(der.length - der.remain) > 1) {
-		throw (new Error('DER sequence does not contain whole byte ' +
-		    'stream'));
-	}
-
-	var tbsStart = der.offset;
-	der.readSequence();
-	var sigOffset = der.offset + der.length;
-	var tbsEnd = sigOffset;
-
-	if (der.peek() === Local(0)) {
-		der.readSequence(Local(0));
-		var version = der.readInt();
-		assert.ok(version <= 3,
-		    'only x.509 versions up to v3 supported');
-	}
-
-	var cert = {};
-	cert.signatures = {};
-	var sig = (cert.signatures.x509 = {});
-	sig.extras = {};
-
-	cert.serial = readMPInt(der, 'serial');
-
-	der.readSequence();
-	var after = der.offset + der.length;
-	var certAlgOid = der.readOID();
-	var certAlg = SIGN_ALGS[certAlgOid];
-	if (certAlg === undefined)
-		throw (new Error('unknown signature algorithm ' + certAlgOid));
-
-	der._offset = after;
-	cert.issuer = Identity.parseAsn1(der);
-
-	der.readSequence();
-	cert.validFrom = readDate(der);
-	cert.validUntil = readDate(der);
-
-	cert.subjects = [Identity.parseAsn1(der)];
-
-	der.readSequence();
-	after = der.offset + der.length;
-	cert.subjectKey = pkcs8.readPkcs8(undefined, 'public', der);
-	der._offset = after;
-
-	/* issuerUniqueID */
-	if (der.peek() === Local(1)) {
-		der.readSequence(Local(1));
-		sig.extras.issuerUniqueID =
-		    buf.slice(der.offset, der.offset + der.length);
-		der._offset += der.length;
-	}
-
-	/* subjectUniqueID */
-	if (der.peek() === Local(2)) {
-		der.readSequence(Local(2));
-		sig.extras.subjectUniqueID =
-		    buf.slice(der.offset, der.offset + der.length);
-		der._offset += der.length;
-	}
-
-	/* extensions */
-	if (der.peek() === Local(3)) {
-		der.readSequence(Local(3));
-		var extEnd = der.offset + der.length;
-		der.readSequence();
-
-		while (der.offset < extEnd)
-			readExtension(cert, buf, der);
-
-		assert.strictEqual(der.offset, extEnd);
-	}
-
-	assert.strictEqual(der.offset, sigOffset);
-
-	der.readSequence();
-	after = der.offset + der.length;
-	var sigAlgOid = der.readOID();
-	var sigAlg = SIGN_ALGS[sigAlgOid];
-	if (sigAlg === undefined)
-		throw (new Error('unknown signature algorithm ' + sigAlgOid));
-	der._offset = after;
-
-	var sigData = der.readString(asn1.Ber.BitString, true);
-	if (sigData[0] === 0)
-		sigData = sigData.slice(1);
-	var algParts = sigAlg.split('-');
-
-	sig.signature = Signature.parse(sigData, algParts[0], 'asn1');
-	sig.signature.hashAlgorithm = algParts[1];
-	sig.algo = sigAlg;
-	sig.cache = buf.slice(tbsStart, tbsEnd);
-
-	return (new Certificate(cert));
-}
-
-function readDate(der) {
-	if (der.peek() === asn1.Ber.UTCTime) {
-		return (utcTimeToDate(der.readString(asn1.Ber.UTCTime)));
-	} else if (der.peek() === asn1.Ber.GeneralizedTime) {
-		return (gTimeToDate(der.readString(asn1.Ber.GeneralizedTime)));
-	} else {
-		throw (new Error('Unsupported date format'));
-	}
-}
-
-/* RFC5280, section 4.2.1.6 (GeneralName type) */
-var ALTNAME = {
-	OtherName: Local(0),
-	RFC822Name: Context(1),
-	DNSName: Context(2),
-	X400Address: Local(3),
-	DirectoryName: Local(4),
-	EDIPartyName: Local(5),
-	URI: Context(6),
-	IPAddress: Context(7),
-	OID: Context(8)
-};
-
-/* RFC5280, section 4.2.1.12 (KeyPurposeId) */
-var EXTPURPOSE = {
-	'serverAuth': '1.3.6.1.5.5.7.3.1',
-	'clientAuth': '1.3.6.1.5.5.7.3.2',
-	'codeSigning': '1.3.6.1.5.5.7.3.3',
-
-	/* See https://github.com/joyent/oid-docs/blob/master/root.md */
-	'joyentDocker': '1.3.6.1.4.1.38678.1.4.1',
-	'joyentCmon': '1.3.6.1.4.1.38678.1.4.2'
-};
-var EXTPURPOSE_REV = {};
-Object.keys(EXTPURPOSE).forEach(function (k) {
-	EXTPURPOSE_REV[EXTPURPOSE[k]] = k;
-});
-
-var KEYUSEBITS = [
-	'signature', 'identity', 'keyEncryption',
-	'encryption', 'keyAgreement', 'ca', 'crl'
-];
-
-function readExtension(cert, buf, der) {
-	der.readSequence();
-	var after = der.offset + der.length;
-	var extId = der.readOID();
-	var id;
-	var sig = cert.signatures.x509;
-	sig.extras.exts = [];
-
-	var critical;
-	if (der.peek() === asn1.Ber.Boolean)
-		critical = der.readBoolean();
-
-	switch (extId) {
-	case (EXTS.basicConstraints):
-		der.readSequence(asn1.Ber.OctetString);
-		der.readSequence();
-		var bcEnd = der.offset + der.length;
-		var ca = false;
-		if (der.peek() === asn1.Ber.Boolean)
-			ca = der.readBoolean();
-		if (cert.purposes === undefined)
-			cert.purposes = [];
-		if (ca === true)
-			cert.purposes.push('ca');
-		var bc = { oid: extId, critical: critical };
-		if (der.offset < bcEnd && der.peek() === asn1.Ber.Integer)
-			bc.pathLen = der.readInt();
-		sig.extras.exts.push(bc);
-		break;
-	case (EXTS.extKeyUsage):
-		der.readSequence(asn1.Ber.OctetString);
-		der.readSequence();
-		if (cert.purposes === undefined)
-			cert.purposes = [];
-		var ekEnd = der.offset + der.length;
-		while (der.offset < ekEnd) {
-			var oid = der.readOID();
-			cert.purposes.push(EXTPURPOSE_REV[oid] || oid);
-		}
-		/*
-		 * This is a bit of a hack: in the case where we have a cert
-		 * that's only allowed to do serverAuth or clientAuth (and not
-		 * the other), we want to make sure all our Subjects are of
-		 * the right type. But we already parsed our Subjects and
-		 * decided if they were hosts or users earlier (since it appears
-		 * first in the cert).
-		 *
-		 * So we go through and mutate them into the right kind here if
-		 * it doesn't match. This might not be hugely beneficial, as it
-		 * seems that single-purpose certs are not often seen in the
-		 * wild.
-		 */
-		if (cert.purposes.indexOf('serverAuth') !== -1 &&
-		    cert.purposes.indexOf('clientAuth') === -1) {
-			cert.subjects.forEach(function (ide) {
-				if (ide.type !== 'host') {
-					ide.type = 'host';
-					ide.hostname = ide.uid ||
-					    ide.email ||
-					    ide.components[0].value;
-				}
-			});
-		} else if (cert.purposes.indexOf('clientAuth') !== -1 &&
-		    cert.purposes.indexOf('serverAuth') === -1) {
-			cert.subjects.forEach(function (ide) {
-				if (ide.type !== 'user') {
-					ide.type = 'user';
-					ide.uid = ide.hostname ||
-					    ide.email ||
-					    ide.components[0].value;
-				}
-			});
-		}
-		sig.extras.exts.push({ oid: extId, critical: critical });
-		break;
-	case (EXTS.keyUsage):
-		der.readSequence(asn1.Ber.OctetString);
-		var bits = der.readString(asn1.Ber.BitString, true);
-		var setBits = readBitField(bits, KEYUSEBITS);
-		setBits.forEach(function (bit) {
-			if (cert.purposes === undefined)
-				cert.purposes = [];
-			if (cert.purposes.indexOf(bit) === -1)
-				cert.purposes.push(bit);
-		});
-		sig.extras.exts.push({ oid: extId, critical: critical,
-		    bits: bits });
-		break;
-	case (EXTS.altName):
-		der.readSequence(asn1.Ber.OctetString);
-		der.readSequence();
-		var aeEnd = der.offset + der.length;
-		while (der.offset < aeEnd) {
-			switch (der.peek()) {
-			case ALTNAME.OtherName:
-			case ALTNAME.EDIPartyName:
-				der.readSequence();
-				der._offset += der.length;
-				break;
-			case ALTNAME.OID:
-				der.readOID(ALTNAME.OID);
-				break;
-			case ALTNAME.RFC822Name:
-				/* RFC822 specifies email addresses */
-				var email = der.readString(ALTNAME.RFC822Name);
-				id = Identity.forEmail(email);
-				if (!cert.subjects[0].equals(id))
-					cert.subjects.push(id);
-				break;
-			case ALTNAME.DirectoryName:
-				der.readSequence(ALTNAME.DirectoryName);
-				id = Identity.parseAsn1(der);
-				if (!cert.subjects[0].equals(id))
-					cert.subjects.push(id);
-				break;
-			case ALTNAME.DNSName:
-				var host = der.readString(
-				    ALTNAME.DNSName);
-				id = Identity.forHost(host);
-				if (!cert.subjects[0].equals(id))
-					cert.subjects.push(id);
-				break;
-			default:
-				der.readString(der.peek());
-				break;
-			}
-		}
-		sig.extras.exts.push({ oid: extId, critical: critical });
-		break;
-	default:
-		sig.extras.exts.push({
-			oid: extId,
-			critical: critical,
-			data: der.readString(asn1.Ber.OctetString, true)
-		});
-		break;
-	}
-
-	der._offset = after;
-}
-
-var UTCTIME_RE =
-    /^([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})?Z$/;
-function utcTimeToDate(t) {
-	var m = t.match(UTCTIME_RE);
-	assert.ok(m, 'timestamps must be in UTC');
-	var d = new Date();
-
-	var thisYear = d.getUTCFullYear();
-	var century = Math.floor(thisYear / 100) * 100;
-
-	var year = parseInt(m[1], 10);
-	if (thisYear % 100 < 50 && year >= 60)
-		year += (century - 1);
-	else
-		year += century;
-	d.setUTCFullYear(year, parseInt(m[2], 10) - 1, parseInt(m[3], 10));
-	d.setUTCHours(parseInt(m[4], 10), parseInt(m[5], 10));
-	if (m[6] && m[6].length > 0)
-		d.setUTCSeconds(parseInt(m[6], 10));
-	return (d);
-}
-
-var GTIME_RE =
-    /^([0-9]{4})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})?Z$/;
-function gTimeToDate(t) {
-	var m = t.match(GTIME_RE);
-	assert.ok(m);
-	var d = new Date();
-
-	d.setUTCFullYear(parseInt(m[1], 10), parseInt(m[2], 10) - 1,
-	    parseInt(m[3], 10));
-	d.setUTCHours(parseInt(m[4], 10), parseInt(m[5], 10));
-	if (m[6] && m[6].length > 0)
-		d.setUTCSeconds(parseInt(m[6], 10));
-	return (d);
-}
-
-function zeroPad(n) {
-	var s = '' + n;
-	while (s.length < 2)
-		s = '0' + s;
-	return (s);
-}
-
-function dateToUTCTime(d) {
-	var s = '';
-	s += zeroPad(d.getUTCFullYear() % 100);
-	s += zeroPad(d.getUTCMonth() + 1);
-	s += zeroPad(d.getUTCDate());
-	s += zeroPad(d.getUTCHours());
-	s += zeroPad(d.getUTCMinutes());
-	s += zeroPad(d.getUTCSeconds());
-	s += 'Z';
-	return (s);
-}
-
-function sign(cert, key) {
-	if (cert.signatures.x509 === undefined)
-		cert.signatures.x509 = {};
-	var sig = cert.signatures.x509;
-
-	sig.algo = key.type + '-' + key.defaultHashAlgorithm();
-	if (SIGN_ALGS[sig.algo] === undefined)
-		return (false);
-
-	var der = new asn1.BerWriter();
-	writeTBSCert(cert, der);
-	var blob = der.buffer;
-	sig.cache = blob;
-
-	var signer = key.createSign();
-	signer.write(blob);
-	cert.signatures.x509.signature = signer.sign();
-
-	return (true);
-}
-
-function signAsync(cert, signer, done) {
-	if (cert.signatures.x509 === undefined)
-		cert.signatures.x509 = {};
-	var sig = cert.signatures.x509;
-
-	var der = new asn1.BerWriter();
-	writeTBSCert(cert, der);
-	var blob = der.buffer;
-	sig.cache = blob;
-
-	signer(blob, function (err, signature) {
-		if (err) {
-			done(err);
-			return;
-		}
-		sig.algo = signature.type + '-' + signature.hashAlgorithm;
-		if (SIGN_ALGS[sig.algo] === undefined) {
-			done(new Error('Invalid signing algorithm "' +
-			    sig.algo + '"'));
-			return;
-		}
-		sig.signature = signature;
-		done();
-	});
-}
-
-function write(cert, options) {
-	var sig = cert.signatures.x509;
-	assert.object(sig, 'x509 signature');
-
-	var der = new asn1.BerWriter();
-	der.startSequence();
-	if (sig.cache) {
-		der._ensure(sig.cache.length);
-		sig.cache.copy(der._buf, der._offset);
-		der._offset += sig.cache.length;
-	} else {
-		writeTBSCert(cert, der);
-	}
-
-	der.startSequence();
-	der.writeOID(SIGN_ALGS[sig.algo]);
-	if (sig.algo.match(/^rsa-/))
-		der.writeNull();
-	der.endSequence();
-
-	var sigData = sig.signature.toBuffer('asn1');
-	var data = Buffer.alloc(sigData.length + 1);
-	data[0] = 0;
-	sigData.copy(data, 1);
-	der.writeBuffer(data, asn1.Ber.BitString);
-	der.endSequence();
-
-	return (der.buffer);
-}
-
-function writeTBSCert(cert, der) {
-	var sig = cert.signatures.x509;
-	assert.object(sig, 'x509 signature');
-
-	der.startSequence();
-
-	der.startSequence(Local(0));
-	der.writeInt(2);
-	der.endSequence();
-
-	der.writeBuffer(utils.mpNormalize(cert.serial), asn1.Ber.Integer);
-
-	der.startSequence();
-	der.writeOID(SIGN_ALGS[sig.algo]);
-	if (sig.algo.match(/^rsa-/))
-		der.writeNull();
-	der.endSequence();
-
-	cert.issuer.toAsn1(der);
-
-	der.startSequence();
-	der.writeString(dateToUTCTime(cert.validFrom), asn1.Ber.UTCTime);
-	der.writeString(dateToUTCTime(cert.validUntil), asn1.Ber.UTCTime);
-	der.endSequence();
-
-	var subject = cert.subjects[0];
-	var altNames = cert.subjects.slice(1);
-	subject.toAsn1(der);
-
-	pkcs8.writePkcs8(der, cert.subjectKey);
-
-	if (sig.extras && sig.extras.issuerUniqueID) {
-		der.writeBuffer(sig.extras.issuerUniqueID, Local(1));
-	}
-
-	if (sig.extras && sig.extras.subjectUniqueID) {
-		der.writeBuffer(sig.extras.subjectUniqueID, Local(2));
-	}
-
-	if (altNames.length > 0 || subject.type === 'host' ||
-	    (cert.purposes !== undefined && cert.purposes.length > 0) ||
-	    (sig.extras && sig.extras.exts)) {
-		der.startSequence(Local(3));
-		der.startSequence();
-
-		var exts = [];
-		if (cert.purposes !== undefined && cert.purposes.length > 0) {
-			exts.push({
-				oid: EXTS.basicConstraints,
-				critical: true
-			});
-			exts.push({
-				oid: EXTS.keyUsage,
-				critical: true
-			});
-			exts.push({
-				oid: EXTS.extKeyUsage,
-				critical: true
-			});
-		}
-		exts.push({ oid: EXTS.altName });
-		if (sig.extras && sig.extras.exts)
-			exts = sig.extras.exts;
-
-		for (var i = 0; i < exts.length; ++i) {
-			der.startSequence();
-			der.writeOID(exts[i].oid);
-
-			if (exts[i].critical !== undefined)
-				der.writeBoolean(exts[i].critical);
-
-			if (exts[i].oid === EXTS.altName) {
-				der.startSequence(asn1.Ber.OctetString);
-				der.startSequence();
-				if (subject.type === 'host') {
-					der.writeString(subject.hostname,
-					    Context(2));
-				}
-				for (var j = 0; j < altNames.length; ++j) {
-					if (altNames[j].type === 'host') {
-						der.writeString(
-						    altNames[j].hostname,
-						    ALTNAME.DNSName);
-					} else if (altNames[j].type ===
-					    'email') {
-						der.writeString(
-						    altNames[j].email,
-						    ALTNAME.RFC822Name);
-					} else {
-						/*
-						 * Encode anything else as a
-						 * DN style name for now.
-						 */
-						der.startSequence(
-						    ALTNAME.DirectoryName);
-						altNames[j].toAsn1(der);
-						der.endSequence();
-					}
-				}
-				der.endSequence();
-				der.endSequence();
-			} else if (exts[i].oid === EXTS.basicConstraints) {
-				der.startSequence(asn1.Ber.OctetString);
-				der.startSequence();
-				var ca = (cert.purposes.indexOf('ca') !== -1);
-				var pathLen = exts[i].pathLen;
-				der.writeBoolean(ca);
-				if (pathLen !== undefined)
-					der.writeInt(pathLen);
-				der.endSequence();
-				der.endSequence();
-			} else if (exts[i].oid === EXTS.extKeyUsage) {
-				der.startSequence(asn1.Ber.OctetString);
-				der.startSequence();
-				cert.purposes.forEach(function (purpose) {
-					if (purpose === 'ca')
-						return;
-					if (KEYUSEBITS.indexOf(purpose) !== -1)
-						return;
-					var oid = purpose;
-					if (EXTPURPOSE[purpose] !== undefined)
-						oid = EXTPURPOSE[purpose];
-					der.writeOID(oid);
-				});
-				der.endSequence();
-				der.endSequence();
-			} else if (exts[i].oid === EXTS.keyUsage) {
-				der.startSequence(asn1.Ber.OctetString);
-				/*
-				 * If we parsed this certificate from a byte
-				 * stream (i.e. we didn't generate it in sshpk)
-				 * then we'll have a ".bits" property on the
-				 * ext with the original raw byte contents.
-				 *
-				 * If we have this, use it here instead of
-				 * regenerating it. This guarantees we output
-				 * the same data we parsed, so signatures still
-				 * validate.
-				 */
-				if (exts[i].bits !== undefined) {
-					der.writeBuffer(exts[i].bits,
-					    asn1.Ber.BitString);
-				} else {
-					var bits = writeBitField(cert.purposes,
-					    KEYUSEBITS);
-					der.writeBuffer(bits,
-					    asn1.Ber.BitString);
-				}
-				der.endSequence();
-			} else {
-				der.writeBuffer(exts[i].data,
-				    asn1.Ber.OctetString);
-			}
-
-			der.endSequence();
-		}
-
-		der.endSequence();
-		der.endSequence();
-	}
-
-	der.endSequence();
-}
-
-/*
- * Reads an ASN.1 BER bitfield out of the Buffer produced by doing
- * `BerReader#readString(asn1.Ber.BitString)`. That function gives us the raw
- * contents of the BitString tag, which is a count of unused bits followed by
- * the bits as a right-padded byte string.
- *
- * `bits` is the Buffer, `bitIndex` should contain an array of string names
- * for the bits in the string, ordered starting with bit #0 in the ASN.1 spec.
- *
- * Returns an array of Strings, the names of the bits that were set to 1.
- */
-function readBitField(bits, bitIndex) {
-	var bitLen = 8 * (bits.length - 1) - bits[0];
-	var setBits = {};
-	for (var i = 0; i < bitLen; ++i) {
-		var byteN = 1 + Math.floor(i / 8);
-		var bit = 7 - (i % 8);
-		var mask = 1 << bit;
-		var bitVal = ((bits[byteN] & mask) !== 0);
-		var name = bitIndex[i];
-		if (bitVal && typeof (name) === 'string') {
-			setBits[name] = true;
-		}
-	}
-	return (Object.keys(setBits));
-}
-
-/*
- * `setBits` is an array of strings, containing the names for each bit that
- * sould be set to 1. `bitIndex` is same as in `readBitField()`.
- *
- * Returns a Buffer, ready to be written out with `BerWriter#writeString()`.
- */
-function writeBitField(setBits, bitIndex) {
-	var bitLen = bitIndex.length;
-	var blen = Math.ceil(bitLen / 8);
-	var unused = blen * 8 - bitLen;
-	var bits = Buffer.alloc(1 + blen); // zero-filled
-	bits[0] = unused;
-	for (var i = 0; i < bitLen; ++i) {
-		var byteN = 1 + Math.floor(i / 8);
-		var bit = 7 - (i % 8);
-		var mask = 1 << bit;
-		var name = bitIndex[i];
-		if (name === undefined)
-			continue;
-		var bitVal = (setBits.indexOf(name) !== -1);
-		if (bitVal) {
-			bits[byteN] |= mask;
-		}
-	}
-	return (bits);
-}
-
-
-/***/ }),
-/* 458 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-
-/*<replacement>*/
-
-var Buffer = __webpack_require__(45).Buffer;
-/*</replacement>*/
-
-var isEncoding = Buffer.isEncoding || function (encoding) {
-  encoding = '' + encoding;
-  switch (encoding && encoding.toLowerCase()) {
-    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
-      return true;
-    default:
-      return false;
-  }
-};
-
-function _normalizeEncoding(enc) {
-  if (!enc) return 'utf8';
-  var retried;
-  while (true) {
-    switch (enc) {
-      case 'utf8':
-      case 'utf-8':
-        return 'utf8';
-      case 'ucs2':
-      case 'ucs-2':
-      case 'utf16le':
-      case 'utf-16le':
-        return 'utf16le';
-      case 'latin1':
-      case 'binary':
-        return 'latin1';
-      case 'base64':
-      case 'ascii':
-      case 'hex':
-        return enc;
-      default:
-        if (retried) return; // undefined
-        enc = ('' + enc).toLowerCase();
-        retried = true;
-    }
-  }
-};
-
-// Do not cache `Buffer.isEncoding` when checking encoding names as some
-// modules monkey-patch it to support additional encodings
-function normalizeEncoding(enc) {
-  var nenc = _normalizeEncoding(enc);
-  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
-  return nenc || enc;
-}
-
-// StringDecoder provides an interface for efficiently splitting a series of
-// buffers into a series of JS strings without breaking apart multi-byte
-// characters.
-exports.StringDecoder = StringDecoder;
-function StringDecoder(encoding) {
-  this.encoding = normalizeEncoding(encoding);
-  var nb;
-  switch (this.encoding) {
-    case 'utf16le':
-      this.text = utf16Text;
-      this.end = utf16End;
-      nb = 4;
-      break;
-    case 'utf8':
-      this.fillLast = utf8FillLast;
-      nb = 4;
-      break;
-    case 'base64':
-      this.text = base64Text;
-      this.end = base64End;
-      nb = 3;
-      break;
-    default:
-      this.write = simpleWrite;
-      this.end = simpleEnd;
-      return;
-  }
-  this.lastNeed = 0;
-  this.lastTotal = 0;
-  this.lastChar = Buffer.allocUnsafe(nb);
-}
-
-StringDecoder.prototype.write = function (buf) {
-  if (buf.length === 0) return '';
-  var r;
-  var i;
-  if (this.lastNeed) {
-    r = this.fillLast(buf);
-    if (r === undefined) return '';
-    i = this.lastNeed;
-    this.lastNeed = 0;
-  } else {
-    i = 0;
-  }
-  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
-  return r || '';
-};
-
-StringDecoder.prototype.end = utf8End;
-
-// Returns only complete characters in a Buffer
-StringDecoder.prototype.text = utf8Text;
-
-// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
-StringDecoder.prototype.fillLast = function (buf) {
-  if (this.lastNeed <= buf.length) {
-    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
-    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
-  }
-  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
-  this.lastNeed -= buf.length;
-};
-
-// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
-// continuation byte. If an invalid byte is detected, -2 is returned.
-function utf8CheckByte(byte) {
-  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
-  return byte >> 6 === 0x02 ? -1 : -2;
-}
-
-// Checks at most 3 bytes at the end of a Buffer in order to detect an
-// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
-// needed to complete the UTF-8 character (if applicable) are returned.
-function utf8CheckIncomplete(self, buf, i) {
-  var j = buf.length - 1;
-  if (j < i) return 0;
-  var nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) self.lastNeed = nb - 1;
-    return nb;
-  }
-  if (--j < i || nb === -2) return 0;
-  nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) self.lastNeed = nb - 2;
-    return nb;
-  }
-  if (--j < i || nb === -2) return 0;
-  nb = utf8CheckByte(buf[j]);
-  if (nb >= 0) {
-    if (nb > 0) {
-      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
-    }
-    return nb;
-  }
-  return 0;
-}
-
-// Validates as many continuation bytes for a multi-byte UTF-8 character as
-// needed or are available. If we see a non-continuation byte where we expect
-// one, we "replace" the validated continuation bytes we've seen so far with
-// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
-// behavior. The continuation byte check is included three times in the case
-// where all of the continuation bytes for a character exist in the same buffer.
-// It is also done this way as a slight performance increase instead of using a
-// loop.
-function utf8CheckExtraBytes(self, buf, p) {
-  if ((buf[0] & 0xC0) !== 0x80) {
-    self.lastNeed = 0;
-    return '\ufffd';
-  }
-  if (self.lastNeed > 1 && buf.length > 1) {
-    if ((buf[1] & 0xC0) !== 0x80) {
-      self.lastNeed = 1;
-      return '\ufffd';
-    }
-    if (self.lastNeed > 2 && buf.length > 2) {
-      if ((buf[2] & 0xC0) !== 0x80) {
-        self.lastNeed = 2;
-        return '\ufffd';
-      }
-    }
-  }
-}
-
-// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
-function utf8FillLast(buf) {
-  var p = this.lastTotal - this.lastNeed;
-  var r = utf8CheckExtraBytes(this, buf, p);
-  if (r !== undefined) return r;
-  if (this.lastNeed <= buf.length) {
-    buf.copy(this.lastChar, p, 0, this.lastNeed);
-    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
-  }
-  buf.copy(this.lastChar, p, 0, buf.length);
-  this.lastNeed -= buf.length;
-}
-
-// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
-// partial character, the character's bytes are buffered until the required
-// number of bytes are available.
-function utf8Text(buf, i) {
-  var total = utf8CheckIncomplete(this, buf, i);
-  if (!this.lastNeed) return buf.toString('utf8', i);
-  this.lastTotal = total;
-  var end = buf.length - (total - this.lastNeed);
-  buf.copy(this.lastChar, 0, end);
-  return buf.toString('utf8', i, end);
-}
-
-// For UTF-8, a replacement character is added when ending on a partial
-// character.
-function utf8End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) return r + '\ufffd';
-  return r;
-}
-
-// UTF-16LE typically needs two bytes per character, but even if we have an even
-// number of bytes available, we need to check if we end on a leading/high
-// surrogate. In that case, we need to wait for the next two bytes in order to
-// decode the last character properly.
-function utf16Text(buf, i) {
-  if ((buf.length - i) % 2 === 0) {
-    var r = buf.toString('utf16le', i);
-    if (r) {
-      var c = r.charCodeAt(r.length - 1);
-      if (c >= 0xD800 && c <= 0xDBFF) {
-        this.lastNeed = 2;
-        this.lastTotal = 4;
-        this.lastChar[0] = buf[buf.length - 2];
-        this.lastChar[1] = buf[buf.length - 1];
-        return r.slice(0, -1);
-      }
-    }
-    return r;
-  }
-  this.lastNeed = 1;
-  this.lastTotal = 2;
-  this.lastChar[0] = buf[buf.length - 1];
-  return buf.toString('utf16le', i, buf.length - 1);
-}
-
-// For UTF-16LE we do not explicitly append special replacement characters if we
-// end on a partial character, we simply let v8 handle that.
-function utf16End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) {
-    var end = this.lastTotal - this.lastNeed;
-    return r + this.lastChar.toString('utf16le', 0, end);
-  }
-  return r;
-}
-
-function base64Text(buf, i) {
-  var n = (buf.length - i) % 3;
-  if (n === 0) return buf.toString('base64', i);
-  this.lastNeed = 3 - n;
-  this.lastTotal = 3;
-  if (n === 1) {
-    this.lastChar[0] = buf[buf.length - 1];
-  } else {
-    this.lastChar[0] = buf[buf.length - 2];
-    this.lastChar[1] = buf[buf.length - 1];
-  }
-  return buf.toString('base64', i, buf.length - n);
-}
-
-function base64End(buf) {
-  var r = buf && buf.length ? this.write(buf) : '';
-  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
-  return r;
-}
-
-// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
-function simpleWrite(buf) {
-  return buf.toString(this.encoding);
-}
-
-function simpleEnd(buf) {
-  return buf && buf.length ? this.write(buf) : '';
-}
-
-/***/ }),
-/* 459 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var toBuffer = __webpack_require__(462)
-var alloc = __webpack_require__(380)
-
-var ZEROS = '0000000000000000000'
-var SEVENS = '7777777777777777777'
-var ZERO_OFFSET = '0'.charCodeAt(0)
-var USTAR = 'ustar\x0000'
-var MASK = parseInt('7777', 8)
-
-var clamp = function (index, len, defaultValue) {
-  if (typeof index !== 'number') return defaultValue
-  index = ~~index // Coerce to integer.
-  if (index >= len) return len
-  if (index >= 0) return index
-  index += len
-  if (index >= 0) return index
-  return 0
-}
-
-var toType = function (flag) {
-  switch (flag) {
-    case 0:
-      return 'file'
-    case 1:
-      return 'link'
-    case 2:
-      return 'symlink'
-    case 3:
-      return 'character-device'
-    case 4:
-      return 'block-device'
-    case 5:
-      return 'directory'
-    case 6:
-      return 'fifo'
-    case 7:
-      return 'contiguous-file'
-    case 72:
-      return 'pax-header'
-    case 55:
-      return 'pax-global-header'
-    case 27:
-      return 'gnu-long-link-path'
-    case 28:
-    case 30:
-      return 'gnu-long-path'
-  }
-
-  return null
-}
-
-var toTypeflag = function (flag) {
-  switch (flag) {
-    case 'file':
-      return 0
-    case 'link':
-      return 1
-    case 'symlink':
-      return 2
-    case 'character-device':
-      return 3
-    case 'block-device':
-      return 4
-    case 'directory':
-      return 5
-    case 'fifo':
-      return 6
-    case 'contiguous-file':
-      return 7
-    case 'pax-header':
-      return 72
-  }
-
-  return 0
-}
-
-var indexOf = function (block, num, offset, end) {
-  for (; offset < end; offset++) {
-    if (block[offset] === num) return offset
-  }
-  return end
-}
-
-var cksum = function (block) {
-  var sum = 8 * 32
-  for (var i = 0; i < 148; i++) sum += block[i]
-  for (var j = 156; j < 512; j++) sum += block[j]
-  return sum
-}
-
-var encodeOct = function (val, n) {
-  val = val.toString(8)
-  if (val.length > n) return SEVENS.slice(0, n) + ' '
-  else return ZEROS.slice(0, n - val.length) + val + ' '
-}
-
-/* Copied from the node-tar repo and modified to meet
- * tar-stream coding standard.
- *
- * Source: https://github.com/npm/node-tar/blob/51b6627a1f357d2eb433e7378e5f05e83b7aa6cd/lib/header.js#L349
- */
-function parse256 (buf) {
-  // first byte MUST be either 80 or FF
-  // 80 for positive, FF for 2's comp
-  var positive
-  if (buf[0] === 0x80) positive = true
-  else if (buf[0] === 0xFF) positive = false
-  else return null
-
-  // build up a base-256 tuple from the least sig to the highest
-  var zero = false
-  var tuple = []
-  for (var i = buf.length - 1; i > 0; i--) {
-    var byte = buf[i]
-    if (positive) tuple.push(byte)
-    else if (zero && byte === 0) tuple.push(0)
-    else if (zero) {
-      zero = false
-      tuple.push(0x100 - byte)
-    } else tuple.push(0xFF - byte)
-  }
-
-  var sum = 0
-  var l = tuple.length
-  for (i = 0; i < l; i++) {
-    sum += tuple[i] * Math.pow(256, i)
-  }
-
-  return positive ? sum : -1 * sum
-}
-
-var decodeOct = function (val, offset, length) {
-  val = val.slice(offset, offset + length)
-  offset = 0
-
-  // If prefixed with 0x80 then parse as a base-256 integer
-  if (val[offset] & 0x80) {
-    return parse256(val)
-  } else {
-    // Older versions of tar can prefix with spaces
-    while (offset < val.length && val[offset] === 32) offset++
-    var end = clamp(indexOf(val, 32, offset, val.length), val.length, val.length)
-    while (offset < end && val[offset] === 0) offset++
-    if (end === offset) return 0
-    return parseInt(val.slice(offset, end).toString(), 8)
-  }
-}
-
-var decodeStr = function (val, offset, length, encoding) {
-  return val.slice(offset, indexOf(val, 0, offset, offset + length)).toString(encoding)
-}
-
-var addLength = function (str) {
-  var len = Buffer.byteLength(str)
-  var digits = Math.floor(Math.log(len) / Math.log(10)) + 1
-  if (len + digits >= Math.pow(10, digits)) digits++
-
-  return (len + digits) + str
-}
-
-exports.decodeLongPath = function (buf, encoding) {
-  return decodeStr(buf, 0, buf.length, encoding)
-}
-
-exports.encodePax = function (opts) { // TODO: encode more stuff in pax
-  var result = ''
-  if (opts.name) result += addLength(' path=' + opts.name + '\n')
-  if (opts.linkname) result += addLength(' linkpath=' + opts.linkname + '\n')
-  var pax = opts.pax
-  if (pax) {
-    for (var key in pax) {
-      result += addLength(' ' + key + '=' + pax[key] + '\n')
-    }
-  }
-  return toBuffer(result)
-}
-
-exports.decodePax = function (buf) {
-  var result = {}
-
-  while (buf.length) {
-    var i = 0
-    while (i < buf.length && buf[i] !== 32) i++
-    var len = parseInt(buf.slice(0, i).toString(), 10)
-    if (!len) return result
-
-    var b = buf.slice(i + 1, len - 1).toString()
-    var keyIndex = b.indexOf('=')
-    if (keyIndex === -1) return result
-    result[b.slice(0, keyIndex)] = b.slice(keyIndex + 1)
-
-    buf = buf.slice(len)
-  }
-
-  return result
-}
-
-exports.encode = function (opts) {
-  var buf = alloc(512)
-  var name = opts.name
-  var prefix = ''
-
-  if (opts.typeflag === 5 && name[name.length - 1] !== '/') name += '/'
-  if (Buffer.byteLength(name) !== name.length) return null // utf-8
-
-  while (Buffer.byteLength(name) > 100) {
-    var i = name.indexOf('/')
-    if (i === -1) return null
-    prefix += prefix ? '/' + name.slice(0, i) : name.slice(0, i)
-    name = name.slice(i + 1)
-  }
-
-  if (Buffer.byteLength(name) > 100 || Buffer.byteLength(prefix) > 155) return null
-  if (opts.linkname && Buffer.byteLength(opts.linkname) > 100) return null
-
-  buf.write(name)
-  buf.write(encodeOct(opts.mode & MASK, 6), 100)
-  buf.write(encodeOct(opts.uid, 6), 108)
-  buf.write(encodeOct(opts.gid, 6), 116)
-  buf.write(encodeOct(opts.size, 11), 124)
-  buf.write(encodeOct((opts.mtime.getTime() / 1000) | 0, 11), 136)
-
-  buf[156] = ZERO_OFFSET + toTypeflag(opts.type)
-
-  if (opts.linkname) buf.write(opts.linkname, 157)
-
-  buf.write(USTAR, 257)
-  if (opts.uname) buf.write(opts.uname, 265)
-  if (opts.gname) buf.write(opts.gname, 297)
-  buf.write(encodeOct(opts.devmajor || 0, 6), 329)
-  buf.write(encodeOct(opts.devminor || 0, 6), 337)
-
-  if (prefix) buf.write(prefix, 345)
-
-  buf.write(encodeOct(cksum(buf), 6), 148)
-
-  return buf
-}
-
-exports.decode = function (buf, filenameEncoding) {
-  var typeflag = buf[156] === 0 ? 0 : buf[156] - ZERO_OFFSET
-
-  var name = decodeStr(buf, 0, 100, filenameEncoding)
-  var mode = decodeOct(buf, 100, 8)
-  var uid = decodeOct(buf, 108, 8)
-  var gid = decodeOct(buf, 116, 8)
-  var size = decodeOct(buf, 124, 12)
-  var mtime = decodeOct(buf, 136, 12)
-  var type = toType(typeflag)
-  var linkname = buf[157] === 0 ? null : decodeStr(buf, 157, 100, filenameEncoding)
-  var uname = decodeStr(buf, 265, 32)
-  var gname = decodeStr(buf, 297, 32)
-  var devmajor = decodeOct(buf, 329, 8)
-  var devminor = decodeOct(buf, 337, 8)
-
-  if (buf[345]) name = decodeStr(buf, 345, 155, filenameEncoding) + '/' + name
-
-  // to support old tar versions that use trailing / to indicate dirs
-  if (typeflag === 0 && name && name[name.length - 1] === '/') typeflag = 5
-
-  var c = cksum(buf)
-
-  // checksum is still initial value if header was null.
-  if (c === 8 * 32) return null
-
-  // valid checksum
-  if (c !== decodeOct(buf, 148, 8)) throw new Error('Invalid tar header. Maybe the tar is corrupted or it needs to be gunzipped?')
-
-  return {
-    name: name,
-    mode: mode,
-    uid: uid,
-    gid: gid,
-    size: size,
-    mtime: new Date(1000 * mtime),
-    type: type,
-    linkname: linkname,
-    uname: uname,
-    gname: gname,
-    devmajor: devmajor,
-    devminor: devminor
-  }
-}
-
-
-/***/ }),
-/* 460 */
-/***/ (function(module, exports, __webpack_require__) {
-
-exports.extract = __webpack_require__(949)
-exports.pack = __webpack_require__(950)
-
-
-/***/ }),
-/* 461 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Transform = __webpack_require__(794)
-  , inherits  = __webpack_require__(3).inherits
-  , xtend     = __webpack_require__(465)
-
-function DestroyableTransform(opts) {
-  Transform.call(this, opts)
-  this._destroyed = false
-}
-
-inherits(DestroyableTransform, Transform)
-
-DestroyableTransform.prototype.destroy = function(err) {
-  if (this._destroyed) return
-  this._destroyed = true
-  
-  var self = this
-  process.nextTick(function() {
-    if (err)
-      self.emit('error', err)
-    self.emit('close')
-  })
-}
-
-// a noop _transform function
-function noop (chunk, enc, callback) {
-  callback(null, chunk)
-}
-
-
-// create a new export function, used by both the main export and
-// the .ctor export, contains common logic for dealing with arguments
-function through2 (construct) {
-  return function (options, transform, flush) {
-    if (typeof options == 'function') {
-      flush     = transform
-      transform = options
-      options   = {}
-    }
-
-    if (typeof transform != 'function')
-      transform = noop
-
-    if (typeof flush != 'function')
-      flush = null
-
-    return construct(options, transform, flush)
-  }
-}
-
-
-// main export, just make me a transform stream!
-module.exports = through2(function (options, transform, flush) {
-  var t2 = new DestroyableTransform(options)
-
-  t2._transform = transform
-
-  if (flush)
-    t2._flush = flush
-
-  return t2
-})
-
-
-// make me a reusable prototype that I can `new`, or implicitly `new`
-// with a constructor call
-module.exports.ctor = through2(function (options, transform, flush) {
-  function Through2 (override) {
-    if (!(this instanceof Through2))
-      return new Through2(override)
-
-    this.options = xtend(options, override)
-
-    DestroyableTransform.call(this, this.options)
-  }
-
-  inherits(Through2, DestroyableTransform)
-
-  Through2.prototype._transform = transform
-
-  if (flush)
-    Through2.prototype._flush = flush
-
-  return Through2
-})
-
-
-module.exports.obj = through2(function (options, transform, flush) {
-  var t2 = new DestroyableTransform(xtend({ objectMode: true, highWaterMark: 16 }, options))
-
-  t2._transform = transform
-
-  if (flush)
-    t2._flush = flush
-
-  return t2
-})
-
-
-/***/ }),
-/* 462 */
-/***/ (function(module, exports) {
-
-module.exports = toBuffer
-
-var makeBuffer = Buffer.from && Buffer.from !== Uint8Array.from ? Buffer.from : bufferFrom
-
-function bufferFrom (buf, enc) {
-  return new Buffer(buf, enc)
-}
-
-function toBuffer (buf, enc) {
-  if (Buffer.isBuffer(buf)) return buf
-  if (typeof buf === 'string') return makeBuffer(buf, enc)
-  if (Array.isArray(buf)) return makeBuffer(buf)
-  throw new Error('Input should be a buffer or a string')
-}
-
-
-/***/ }),
-/* 463 */
-/***/ (function(module, exports) {
-
-/**
- * Convert array of 16 byte values to UUID string format of the form:
- * XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
- */
-var byteToHex = [];
-for (var i = 0; i < 256; ++i) {
-  byteToHex[i] = (i + 0x100).toString(16).substr(1);
-}
-
-function bytesToUuid(buf, offset) {
-  var i = offset || 0;
-  var bth = byteToHex;
-  // join used to fix memory issue caused by concatenation: https://bugs.chromium.org/p/v8/issues/detail?id=3175#c4
-  return ([bth[buf[i++]], bth[buf[i++]], 
-	bth[buf[i++]], bth[buf[i++]], '-',
-	bth[buf[i++]], bth[buf[i++]], '-',
-	bth[buf[i++]], bth[buf[i++]], '-',
-	bth[buf[i++]], bth[buf[i++]], '-',
-	bth[buf[i++]], bth[buf[i++]],
-	bth[buf[i++]], bth[buf[i++]],
-	bth[buf[i++]], bth[buf[i++]]]).join('');
-}
-
-module.exports = bytesToUuid;
-
-
-/***/ }),
-/* 464 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Unique ID creation requires a high quality random # generator.  In node.js
-// this is pretty straight-forward - we use the crypto API.
-
-var crypto = __webpack_require__(11);
-
-module.exports = function nodeRNG() {
-  return crypto.randomBytes(16);
-};
-
-
-/***/ }),
-/* 465 */
-/***/ (function(module, exports) {
-
-module.exports = extend
-
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-
-function extend() {
-    var target = {}
-
-    for (var i = 0; i < arguments.length; i++) {
-        var source = arguments[i]
-
-        for (var key in source) {
-            if (hasOwnProperty.call(source, key)) {
-                target[key] = source[key]
-            }
-        }
-    }
-
-    return target
-}
-
-
-/***/ }),
-/* 466 */
-/***/ (function(module, exports) {
-
-module.exports = require("constants");
-
-/***/ }),
-/* 467 */
-/***/ (function(module, exports) {
-
-module.exports = require("tls");
-
-/***/ }),
-/* 468 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = handleSignals;
-
-var _child;
-
-function _load_child() {
-  return _child = __webpack_require__(58);
-}
-
-function forwardSignalAndExit(signal) {
-  (0, (_child || _load_child()).forwardSignalToSpawnedProcesses)(signal);
-  // We want to exit immediately here since `SIGTERM` means that
-  // If we lose stdout messages due to abrupt exit, shoot the messenger?
-  process.exit(1); // eslint-disable-line no-process-exit
-}
-function handleSignals() {
-  process.on('SIGTERM', () => {
-    forwardSignalAndExit('SIGTERM');
-  });
-}
-
-/***/ }),
-/* 469 */
-/***/ (function(module, exports) {
-
-
-var defaultConfig = {
-  uncaughtException: false,
-  SIGINT: true,
-  SIGTERM: true,
-  SIGQUIT: true
-}
-
-var DEBUG = false
-
-function ON_DEATH (callback) {
-  var handlers = [];
-  Object.keys(defaultConfig).forEach(function(key) {
-    var val = defaultConfig[key]
-    var handler = null;
-    if (val) {
-      if (DEBUG) {
-        handler = function() {
-          var args = Array.prototype.slice.call(arguments, 0)
-          args.unshift(key)
-          console.log('Trapped ' + key)
-          callback.apply(null, args)
-        };
-        process.on(key, handler)
-      } else {
-        handler = function() {
-          var args = Array.prototype.slice.call(arguments, 0)
-          args.unshift(key)
-          callback.apply(null, args)
-        }
-        process.on(key, handler)
-      }
-      handlers.push([key, handler])
-    }
-  })
-  return function OFF_DEATH() {
-    handlers.forEach(function (args) {
-      var key = args[0];
-      var handler = args[1];
-      process.removeListener(key, handler);
-    })
-  }
-}
-
-module.exports = function (arg) {
-  if (typeof arg === 'object') {
-    if (arg['debug'])
-      DEBUG = arg.debug
-    if (arg['DEBUG'])
-      DEBUG = arg.DEBUG
-    delete arg.debug; delete arg.DEBUG;
-
-    Object.keys(arg).forEach(function(key) {
-      defaultConfig[key] = arg[key]
-    })
-
-    if (DEBUG)
-      console.log('ON_DEATH: debug mode enabled for pid [%d]', process.pid)
-
-    return ON_DEATH
-   } else if (typeof arg === 'function') {
-    return ON_DEATH(arg)
-  }
-}
-
-
-
-/***/ }),
-/* 470 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var util = __webpack_require__(3);
-var onExit = __webpack_require__(451);
-var currentlyUnhandled = __webpack_require__(629);
-
-var installed = false;
-
-module.exports = function (log) {
-	if (installed) {
-		return;
-	}
-
-	installed = true;
-
-	log = log || console.error;
-
-	var listUnhandled = currentlyUnhandled();
-
-	onExit(function () {
-		var unhandledRejections = listUnhandled();
-
-		if (unhandledRejections.length > 0) {
-			unhandledRejections.forEach(function (x) {
-				var err = x.reason;
-
-				if (!(err instanceof Error)) {
-					err = new Error('Promise rejected with value: ' + util.inspect(err));
-				}
-
-				log(err.stack);
-			});
-
-			process.exitCode = 1;
-		}
-	});
-};
-
-
-/***/ }),
-/* 471 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-const fs = __webpack_require__(391);
-const path = __webpack_require__(0);
-const retry = __webpack_require__(819);
-const syncFs = __webpack_require__(779);
-
-const locks = {};
-
-function getLockFile(file) {
-    return `${file}.lock`;
-}
-
-function canonicalPath(file, options, callback) {
-    if (!options.realpath) {
-        return callback(null, path.resolve(file));
-    }
-
-    // Use realpath to resolve symlinks
-    // It also resolves relative paths
-    options.fs.realpath(file, callback);
-}
-
-function acquireLock(file, options, callback) {
-    // Use mkdir to create the lockfile (atomic operation)
-    options.fs.mkdir(getLockFile(file), (err) => {
-        // If successful, we are done
-        if (!err) {
-            return callback();
-        }
-
-        // If error is not EEXIST then some other error occurred while locking
-        if (err.code !== 'EEXIST') {
-            return callback(err);
-        }
-
-        // Otherwise, check if lock is stale by analyzing the file mtime
-        if (options.stale <= 0) {
-            return callback(Object.assign(new Error('Lock file is already being hold'), { code: 'ELOCKED', file }));
-        }
-
-        options.fs.stat(getLockFile(file), (err, stat) => {
-            if (err) {
-                // Retry if the lockfile has been removed (meanwhile)
-                // Skip stale check to avoid recursiveness
-                if (err.code === 'ENOENT') {
-                    return acquireLock(file, Object.assign({}, options, { stale: 0 }), callback);
-                }
-
-                return callback(err);
-            }
-
-            if (!isLockStale(stat, options)) {
-                return callback(Object.assign(new Error('Lock file is already being hold'), { code: 'ELOCKED', file }));
-            }
-
-            // If it's stale, remove it and try again!
-            // Skip stale check to avoid recursiveness
-            removeLock(file, options, (err) => {
-                if (err) {
-                    return callback(err);
-                }
-
-                acquireLock(file, Object.assign({}, options, { stale: 0 }), callback);
-            });
-        });
-    });
-}
-
-function isLockStale(stat, options) {
-    return stat.mtime.getTime() < Date.now() - options.stale;
-}
-
-function removeLock(file, options, callback) {
-    // Remove lockfile, ignoring ENOENT errors
-    options.fs.rmdir(getLockFile(file), (err) => {
-        if (err && err.code !== 'ENOENT') {
-            return callback(err);
-        }
-
-        callback();
-    });
-}
-
-function updateLock(file, options) {
-    const lock = locks[file];
-
-    /* istanbul ignore next */
-    if (lock.updateTimeout) {
-        return;
-    }
-
-    lock.updateDelay = lock.updateDelay || options.update;
-    lock.updateTimeout = setTimeout(() => {
-        const mtime = Date.now() / 1000;
-
-        lock.updateTimeout = null;
-
-        options.fs.utimes(getLockFile(file), mtime, mtime, (err) => {
-            // Ignore if the lock was released
-            if (lock.released) {
-                return;
-            }
-
-            // Verify if we are within the stale threshold
-            if (lock.lastUpdate <= Date.now() - options.stale &&
-                lock.lastUpdate > Date.now() - options.stale * 2) {
-                return compromisedLock(file, lock, Object.assign(new Error(lock.updateError || 'Unable to update lock within the stale \
-threshold'), { code: 'ECOMPROMISED' }));
-            }
-
-            // If the file is older than (stale * 2), we assume the clock is moved manually,
-            // which we consider a valid case
-
-            // If it failed to update the lockfile, keep trying unless
-            // the lockfile was deleted!
-            if (err) {
-                if (err.code === 'ENOENT') {
-                    return compromisedLock(file, lock, Object.assign(err, { code: 'ECOMPROMISED' }));
-                }
-
-                lock.updateError = err;
-                lock.updateDelay = 1000;
-                return updateLock(file, options);
-            }
-
-            // All ok, keep updating..
-            lock.lastUpdate = Date.now();
-            lock.updateError = null;
-            lock.updateDelay = null;
-            updateLock(file, options);
-        });
-    }, lock.updateDelay);
-
-    // Unref the timer so that the nodejs process can exit freely
-    // This is safe because all acquired locks will be automatically released
-    // on process exit
-
-    // We first check that `lock.updateTimeout.unref` exists because some users
-    // may be using this module outside of NodeJS (e.g., in an electron app), 
-    // and in those cases `setTimeout` return an integer.
-    if (lock.updateTimeout.unref) {
-        lock.updateTimeout.unref();
-    }
-}
-
-function compromisedLock(file, lock, err) {
-    lock.released = true;                                    // Signal the lock has been released
-    /* istanbul ignore next */
-    lock.updateTimeout && clearTimeout(lock.updateTimeout);  // Cancel lock mtime update
-
-    if (locks[file] === lock) {
-        delete locks[file];
-    }
-
-    lock.compromised(err);
-}
-
-// -----------------------------------------
-
-function lock(file, options, compromised, callback) {
-    if (typeof options === 'function') {
-        callback = compromised;
-        compromised = options;
-        options = null;
-    }
-
-    if (!callback) {
-        callback = compromised;
-        compromised = null;
-    }
-
-    options = Object.assign({
-        stale: 10000,
-        update: null,
-        realpath: true,
-        retries: 0,
-        fs,
-    }, options);
-
-    options.retries = options.retries || 0;
-    options.retries = typeof options.retries === 'number' ? { retries: options.retries } : options.retries;
-    options.stale = Math.max(options.stale || 0, 2000);
-    options.update = options.update == null ? options.stale / 2 : options.update || 0;
-    options.update = Math.max(Math.min(options.update, options.stale / 2), 1000);
-    compromised = compromised || function (err) { throw err; };
-
-    // Resolve to a canonical file path
-    canonicalPath(file, options, (err, file) => {
-        if (err) {
-            return callback(err);
-        }
-
-        // Attempt to acquire the lock
-        const operation = retry.operation(options.retries);
-
-        operation.attempt(() => {
-            acquireLock(file, options, (err) => {
-                if (operation.retry(err)) {
-                    return;
-                }
-
-                if (err) {
-                    return callback(operation.mainError());
-                }
-
-                // We now own the lock
-                const lock = locks[file] = {
-                    options,
-                    compromised,
-                    lastUpdate: Date.now(),
-                };
-
-                // We must keep the lock fresh to avoid staleness
-                updateLock(file, options);
-
-                callback(null, (releasedCallback) => {
-                    if (lock.released) {
-                        return releasedCallback &&
-                            releasedCallback(Object.assign(new Error('Lock is already released'), { code: 'ERELEASED' }));
-                    }
-
-                    // Not necessary to use realpath twice when unlocking
-                    unlock(file, Object.assign({}, options, { realpath: false }), releasedCallback);
-                });
-            });
-        });
-    });
-}
-
-function unlock(file, options, callback) {
-    if (typeof options === 'function') {
-        callback = options;
-        options = null;
-    }
-
-    options = Object.assign({
-        fs,
-        realpath: true,
-    }, options);
-
-    callback = callback || function () {};
-
-    // Resolve to a canonical file path
-    canonicalPath(file, options, (err, file) => {
-        if (err) {
-            return callback(err);
-        }
-
-        // Skip if the lock is not acquired
-        const lock = locks[file];
-
-        if (!lock) {
-            return callback(Object.assign(new Error('Lock is not acquired/owned by you'), { code: 'ENOTACQUIRED' }));
-        }
-
-        lock.updateTimeout && clearTimeout(lock.updateTimeout);  // Cancel lock mtime update
-        lock.released = true;                                    // Signal the lock has been released
-        delete locks[file];                                      // Delete from locks
-
-        removeLock(file, options, callback);
-    });
-}
-
-function lockSync(file, options, compromised) {
-    if (typeof options === 'function') {
-        compromised = options;
-        options = null;
-    }
-
-    options = options || {};
-    options.fs = syncFs(options.fs || fs);
-    options.retries = options.retries || 0;
-    options.retries = typeof options.retries === 'number' ? { retries: options.retries } : options.retries;
-
-    // Retries are not allowed because it requires the flow to be sync
-    if (options.retries.retries) {
-        throw Object.assign(new Error('Cannot use retries with the sync api'), { code: 'ESYNC' });
-    }
-
-    let err;
-    let release;
-
-    lock(file, options, compromised, (_err, _release) => {
-        err = _err;
-        release = _release;
-    });
-
-    if (err) {
-        throw err;
-    }
-
-    return release;
-}
-
-function unlockSync(file, options) {
-    options = options || {};
-    options.fs = syncFs(options.fs || fs);
-
-    let err;
-
-    unlock(file, options, (_err) => {
-        err = _err;
-    });
-
-    if (err) {
-        throw err;
-    }
-}
-
-function check(file, options, callback) {
-    if (typeof options === 'function') {
-        callback = options;
-        options = null;
-    }
-
-    options = Object.assign({
-        stale: 10000,
-        realpath: true,
-        fs,
-    }, options);
-
-    options.stale = Math.max(options.stale || 0, 2000);
-
-    // Resolve to a canonical file path
-    canonicalPath(file, options, (err, file) => {
-        if (err) {
-            return callback(err);
-        }
-
-        // Check if lockfile exists
-        options.fs.stat(getLockFile(file), (err, stat) => {
-            if (err) {
-                // if does not exist, file is not locked. Otherwise, callback with error
-                return (err.code === 'ENOENT') ? callback(null, false) : callback(err);
-            }
-
-            if (options.stale <= 0) { return callback(null, true); }
-
-            // Otherwise, check if lock is stale by analyzing the file mtime
-            return callback(null, !isLockStale(stat, options));
-        });
-    });
-}
-
-function checkSync(file, options) {
-    options = options || {};
-    options.fs = syncFs(options.fs || fs);
-
-    let err;
-    let locked;
-
-    check(file, options, (_err, _locked) => {
-        err = _err;
-        locked = _locked;
-    });
-
-    if (err) {
-        throw err;
-    }
-
-    return locked;
-}
-
-
-// Remove acquired locks on exit
-/* istanbul ignore next */
-process.on('exit', () => {
-    Object.keys(locks).forEach((file) => {
-        try { locks[file].options.fs.rmdirSync(getLockFile(file)); } catch (e) { /* empty */ }
-    });
-});
-
-module.exports = lock;
-module.exports.lock = lock;
-module.exports.unlock = unlock;
-module.exports.lockSync = lockSync;
-module.exports.unlockSync = unlockSync;
-module.exports.check = check;
-module.exports.checkSync = checkSync;
-
-
-/***/ }),
-/* 472 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var KEYWORDS = [
-  'multipleOf',
-  'maximum',
-  'exclusiveMaximum',
-  'minimum',
-  'exclusiveMinimum',
-  'maxLength',
-  'minLength',
-  'pattern',
-  'additionalItems',
-  'maxItems',
-  'minItems',
-  'uniqueItems',
-  'maxProperties',
-  'minProperties',
-  'required',
-  'additionalProperties',
-  'enum',
-  'format',
-  'const'
-];
-
-module.exports = function (metaSchema, keywordsJsonPointers) {
-  for (var i=0; i<keywordsJsonPointers.length; i++) {
-    metaSchema = JSON.parse(JSON.stringify(metaSchema));
-    var segments = keywordsJsonPointers[i].split('/');
-    var keywords = metaSchema;
-    var j;
-    for (j=1; j<segments.length; j++)
-      keywords = keywords[segments[j]];
-
-    for (j=0; j<KEYWORDS.length; j++) {
-      var key = KEYWORDS[j];
-      var schema = keywords[key];
-      if (schema) {
-        keywords[key] = {
-          anyOf: [
-            schema,
-            { $ref: 'https://raw.githubusercontent.com/epoberezkin/ajv/master/lib/refs/$data.json#' }
-          ]
-        };
-      }
-    }
-  }
-
-  return metaSchema;
-};
-
-
-/***/ }),
-/* 473 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var compileSchema = __webpack_require__(478)
-  , resolve = __webpack_require__(203)
-  , Cache = __webpack_require__(474)
-  , SchemaObject = __webpack_require__(339)
-  , stableStringify = __webpack_require__(389)
-  , formats = __webpack_require__(477)
-  , rules = __webpack_require__(479)
-  , $dataMetaSchema = __webpack_require__(472)
-  , patternGroups = __webpack_require__(500)
-  , util = __webpack_require__(106)
-  , co = __webpack_require__(383);
-
-module.exports = Ajv;
-
-Ajv.prototype.validate = validate;
-Ajv.prototype.compile = compile;
-Ajv.prototype.addSchema = addSchema;
-Ajv.prototype.addMetaSchema = addMetaSchema;
-Ajv.prototype.validateSchema = validateSchema;
-Ajv.prototype.getSchema = getSchema;
-Ajv.prototype.removeSchema = removeSchema;
-Ajv.prototype.addFormat = addFormat;
-Ajv.prototype.errorsText = errorsText;
-
-Ajv.prototype._addSchema = _addSchema;
-Ajv.prototype._compile = _compile;
-
-Ajv.prototype.compileAsync = __webpack_require__(476);
-var customKeyword = __webpack_require__(499);
-Ajv.prototype.addKeyword = customKeyword.add;
-Ajv.prototype.getKeyword = customKeyword.get;
-Ajv.prototype.removeKeyword = customKeyword.remove;
-
-var errorClasses = __webpack_require__(202);
-Ajv.ValidationError = errorClasses.Validation;
-Ajv.MissingRefError = errorClasses.MissingRef;
-Ajv.$dataMetaSchema = $dataMetaSchema;
-
-var META_SCHEMA_ID = 'http://json-schema.org/draft-06/schema';
-
-var META_IGNORE_OPTIONS = [ 'removeAdditional', 'useDefaults', 'coerceTypes' ];
-var META_SUPPORT_DATA = ['/properties'];
-
-/**
- * Creates validator instance.
- * Usage: `Ajv(opts)`
- * @param {Object} opts optional options
- * @return {Object} ajv instance
- */
-function Ajv(opts) {
-  if (!(this instanceof Ajv)) return new Ajv(opts);
-  opts = this._opts = util.copy(opts) || {};
-  setLogger(this);
-  this._schemas = {};
-  this._refs = {};
-  this._fragments = {};
-  this._formats = formats(opts.format);
-  var schemaUriFormat = this._schemaUriFormat = this._formats['uri-reference'];
-  this._schemaUriFormatFunc = function (str) { return schemaUriFormat.test(str); };
-
-  this._cache = opts.cache || new Cache;
-  this._loadingSchemas = {};
-  this._compilations = [];
-  this.RULES = rules();
-  this._getId = chooseGetId(opts);
-
-  opts.loopRequired = opts.loopRequired || Infinity;
-  if (opts.errorDataPath == 'property') opts._errorDataPathProperty = true;
-  if (opts.serialize === undefined) opts.serialize = stableStringify;
-  this._metaOpts = getMetaSchemaOptions(this);
-
-  if (opts.formats) addInitialFormats(this);
-  addDraft6MetaSchema(this);
-  if (typeof opts.meta == 'object') this.addMetaSchema(opts.meta);
-  addInitialSchemas(this);
-  if (opts.patternGroups) patternGroups(this);
-}
-
-
-
-/**
- * Validate data using schema
- * Schema will be compiled and cached (using serialized JSON as key. [fast-json-stable-stringify](https://github.com/epoberezkin/fast-json-stable-stringify) is used to serialize.
- * @this   Ajv
- * @param  {String|Object} schemaKeyRef key, ref or schema object
- * @param  {Any} data to be validated
- * @return {Boolean} validation result. Errors from the last validation will be available in `ajv.errors` (and also in compiled schema: `schema.errors`).
- */
-function validate(schemaKeyRef, data) {
-  var v;
-  if (typeof schemaKeyRef == 'string') {
-    v = this.getSchema(schemaKeyRef);
-    if (!v) throw new Error('no schema with key or ref "' + schemaKeyRef + '"');
-  } else {
-    var schemaObj = this._addSchema(schemaKeyRef);
-    v = schemaObj.validate || this._compile(schemaObj);
-  }
-
-  var valid = v(data);
-  if (v.$async === true)
-    return this._opts.async == '*' ? co(valid) : valid;
-  this.errors = v.errors;
-  return valid;
-}
-
-
-/**
- * Create validating function for passed schema.
- * @this   Ajv
- * @param  {Object} schema schema object
- * @param  {Boolean} _meta true if schema is a meta-schema. Used internally to compile meta schemas of custom keywords.
- * @return {Function} validating function
- */
-function compile(schema, _meta) {
-  var schemaObj = this._addSchema(schema, undefined, _meta);
-  return schemaObj.validate || this._compile(schemaObj);
-}
-
-
-/**
- * Adds schema to the instance.
- * @this   Ajv
- * @param {Object|Array} schema schema or array of schemas. If array is passed, `key` and other parameters will be ignored.
- * @param {String} key Optional schema key. Can be passed to `validate` method instead of schema object or id/ref. One schema per instance can have empty `id` and `key`.
- * @param {Boolean} _skipValidation true to skip schema validation. Used internally, option validateSchema should be used instead.
- * @param {Boolean} _meta true if schema is a meta-schema. Used internally, addMetaSchema should be used instead.
- * @return {Ajv} this for method chaining
- */
-function addSchema(schema, key, _skipValidation, _meta) {
-  if (Array.isArray(schema)){
-    for (var i=0; i<schema.length; i++) this.addSchema(schema[i], undefined, _skipValidation, _meta);
-    return this;
-  }
-  var id = this._getId(schema);
-  if (id !== undefined && typeof id != 'string')
-    throw new Error('schema id must be string');
-  key = resolve.normalizeId(key || id);
-  checkUnique(this, key);
-  this._schemas[key] = this._addSchema(schema, _skipValidation, _meta, true);
-  return this;
-}
-
-
-/**
- * Add schema that will be used to validate other schemas
- * options in META_IGNORE_OPTIONS are alway set to false
- * @this   Ajv
- * @param {Object} schema schema object
- * @param {String} key optional schema key
- * @param {Boolean} skipValidation true to skip schema validation, can be used to override validateSchema option for meta-schema
- * @return {Ajv} this for method chaining
- */
-function addMetaSchema(schema, key, skipValidation) {
-  this.addSchema(schema, key, skipValidation, true);
-  return this;
-}
-
-
-/**
- * Validate schema
- * @this   Ajv
- * @param {Object} schema schema to validate
- * @param {Boolean} throwOrLogError pass true to throw (or log) an error if invalid
- * @return {Boolean} true if schema is valid
- */
-function validateSchema(schema, throwOrLogError) {
-  var $schema = schema.$schema;
-  if ($schema !== undefined && typeof $schema != 'string')
-    throw new Error('$schema must be a string');
-  $schema = $schema || this._opts.defaultMeta || defaultMeta(this);
-  if (!$schema) {
-    this.logger.warn('meta-schema not available');
-    this.errors = null;
-    return true;
-  }
-  var currentUriFormat = this._formats.uri;
-  this._formats.uri = typeof currentUriFormat == 'function'
-                      ? this._schemaUriFormatFunc
-                      : this._schemaUriFormat;
-  var valid;
-  try { valid = this.validate($schema, schema); }
-  finally { this._formats.uri = currentUriFormat; }
-  if (!valid && throwOrLogError) {
-    var message = 'schema is invalid: ' + this.errorsText();
-    if (this._opts.validateSchema == 'log') this.logger.error(message);
-    else throw new Error(message);
-  }
-  return valid;
-}
-
-
-function defaultMeta(self) {
-  var meta = self._opts.meta;
-  self._opts.defaultMeta = typeof meta == 'object'
-                            ? self._getId(meta) || meta
-                            : self.getSchema(META_SCHEMA_ID)
-                              ? META_SCHEMA_ID
-                              : undefined;
-  return self._opts.defaultMeta;
-}
-
-
-/**
- * Get compiled schema from the instance by `key` or `ref`.
- * @this   Ajv
- * @param  {String} keyRef `key` that was passed to `addSchema` or full schema reference (`schema.id` or resolved id).
- * @return {Function} schema validating function (with property `schema`).
- */
-function getSchema(keyRef) {
-  var schemaObj = _getSchemaObj(this, keyRef);
-  switch (typeof schemaObj) {
-    case 'object': return schemaObj.validate || this._compile(schemaObj);
-    case 'string': return this.getSchema(schemaObj);
-    case 'undefined': return _getSchemaFragment(this, keyRef);
-  }
-}
-
-
-function _getSchemaFragment(self, ref) {
-  var res = resolve.schema.call(self, { schema: {} }, ref);
-  if (res) {
-    var schema = res.schema
-      , root = res.root
-      , baseId = res.baseId;
-    var v = compileSchema.call(self, schema, root, undefined, baseId);
-    self._fragments[ref] = new SchemaObject({
-      ref: ref,
-      fragment: true,
-      schema: schema,
-      root: root,
-      baseId: baseId,
-      validate: v
-    });
-    return v;
-  }
-}
-
-
-function _getSchemaObj(self, keyRef) {
-  keyRef = resolve.normalizeId(keyRef);
-  return self._schemas[keyRef] || self._refs[keyRef] || self._fragments[keyRef];
-}
-
-
-/**
- * Remove cached schema(s).
- * If no parameter is passed all schemas but meta-schemas are removed.
- * If RegExp is passed all schemas with key/id matching pattern but meta-schemas are removed.
- * Even if schema is referenced by other schemas it still can be removed as other schemas have local references.
- * @this   Ajv
- * @param  {String|Object|RegExp} schemaKeyRef key, ref, pattern to match key/ref or schema object
- * @return {Ajv} this for method chaining
- */
-function removeSchema(schemaKeyRef) {
-  if (schemaKeyRef instanceof RegExp) {
-    _removeAllSchemas(this, this._schemas, schemaKeyRef);
-    _removeAllSchemas(this, this._refs, schemaKeyRef);
-    return this;
-  }
-  switch (typeof schemaKeyRef) {
-    case 'undefined':
-      _removeAllSchemas(this, this._schemas);
-      _removeAllSchemas(this, this._refs);
-      this._cache.clear();
-      return this;
-    case 'string':
-      var schemaObj = _getSchemaObj(this, schemaKeyRef);
-      if (schemaObj) this._cache.del(schemaObj.cacheKey);
-      delete this._schemas[schemaKeyRef];
-      delete this._refs[schemaKeyRef];
-      return this;
-    case 'object':
-      var serialize = this._opts.serialize;
-      var cacheKey = serialize ? serialize(schemaKeyRef) : schemaKeyRef;
-      this._cache.del(cacheKey);
-      var id = this._getId(schemaKeyRef);
-      if (id) {
-        id = resolve.normalizeId(id);
-        delete this._schemas[id];
-        delete this._refs[id];
-      }
-  }
-  return this;
-}
-
-
-function _removeAllSchemas(self, schemas, regex) {
-  for (var keyRef in schemas) {
-    var schemaObj = schemas[keyRef];
-    if (!schemaObj.meta && (!regex || regex.test(keyRef))) {
-      self._cache.del(schemaObj.cacheKey);
-      delete schemas[keyRef];
-    }
-  }
-}
-
-
-/* @this   Ajv */
-function _addSchema(schema, skipValidation, meta, shouldAddSchema) {
-  if (typeof schema != 'object' && typeof schema != 'boolean')
-    throw new Error('schema should be object or boolean');
-  var serialize = this._opts.serialize;
-  var cacheKey = serialize ? serialize(schema) : schema;
-  var cached = this._cache.get(cacheKey);
-  if (cached) return cached;
-
-  shouldAddSchema = shouldAddSchema || this._opts.addUsedSchema !== false;
-
-  var id = resolve.normalizeId(this._getId(schema));
-  if (id && shouldAddSchema) checkUnique(this, id);
-
-  var willValidate = this._opts.validateSchema !== false && !skipValidation;
-  var recursiveMeta;
-  if (willValidate && !(recursiveMeta = id && id == resolve.normalizeId(schema.$schema)))
-    this.validateSchema(schema, true);
-
-  var localRefs = resolve.ids.call(this, schema);
-
-  var schemaObj = new SchemaObject({
-    id: id,
-    schema: schema,
-    localRefs: localRefs,
-    cacheKey: cacheKey,
-    meta: meta
-  });
-
-  if (id[0] != '#' && shouldAddSchema) this._refs[id] = schemaObj;
-  this._cache.put(cacheKey, schemaObj);
-
-  if (willValidate && recursiveMeta) this.validateSchema(schema, true);
-
-  return schemaObj;
-}
-
-
-/* @this   Ajv */
-function _compile(schemaObj, root) {
-  if (schemaObj.compiling) {
-    schemaObj.validate = callValidate;
-    callValidate.schema = schemaObj.schema;
-    callValidate.errors = null;
-    callValidate.root = root ? root : callValidate;
-    if (schemaObj.schema.$async === true)
-      callValidate.$async = true;
-    return callValidate;
-  }
-  schemaObj.compiling = true;
-
-  var currentOpts;
-  if (schemaObj.meta) {
-    currentOpts = this._opts;
-    this._opts = this._metaOpts;
-  }
-
-  var v;
-  try { v = compileSchema.call(this, schemaObj.schema, root, schemaObj.localRefs); }
-  finally {
-    schemaObj.compiling = false;
-    if (schemaObj.meta) this._opts = currentOpts;
-  }
-
-  schemaObj.validate = v;
-  schemaObj.refs = v.refs;
-  schemaObj.refVal = v.refVal;
-  schemaObj.root = v.root;
-  return v;
-
-
-  function callValidate() {
-    var _validate = schemaObj.validate;
-    var result = _validate.apply(null, arguments);
-    callValidate.errors = _validate.errors;
-    return result;
-  }
-}
-
-
-function chooseGetId(opts) {
-  switch (opts.schemaId) {
-    case '$id': return _get$Id;
-    case 'id': return _getId;
-    default: return _get$IdOrId;
-  }
-}
-
-/* @this   Ajv */
-function _getId(schema) {
-  if (schema.$id) this.logger.warn('schema $id ignored', schema.$id);
-  return schema.id;
-}
-
-/* @this   Ajv */
-function _get$Id(schema) {
-  if (schema.id) this.logger.warn('schema id ignored', schema.id);
-  return schema.$id;
-}
-
-
-function _get$IdOrId(schema) {
-  if (schema.$id && schema.id && schema.$id != schema.id)
-    throw new Error('schema $id is different from id');
-  return schema.$id || schema.id;
-}
-
-
-/**
- * Convert array of error message objects to string
- * @this   Ajv
- * @param  {Array<Object>} errors optional array of validation errors, if not passed errors from the instance are used.
- * @param  {Object} options optional options with properties `separator` and `dataVar`.
- * @return {String} human readable string with all errors descriptions
- */
-function errorsText(errors, options) {
-  errors = errors || this.errors;
-  if (!errors) return 'No errors';
-  options = options || {};
-  var separator = options.separator === undefined ? ', ' : options.separator;
-  var dataVar = options.dataVar === undefined ? 'data' : options.dataVar;
-
-  var text = '';
-  for (var i=0; i<errors.length; i++) {
-    var e = errors[i];
-    if (e) text += dataVar + e.dataPath + ' ' + e.message + separator;
-  }
-  return text.slice(0, -separator.length);
-}
-
-
-/**
- * Add custom format
- * @this   Ajv
- * @param {String} name format name
- * @param {String|RegExp|Function} format string is converted to RegExp; function should return boolean (true when valid)
- * @return {Ajv} this for method chaining
- */
-function addFormat(name, format) {
-  if (typeof format == 'string') format = new RegExp(format);
-  this._formats[name] = format;
-  return this;
-}
-
-
-function addDraft6MetaSchema(self) {
-  var $dataSchema;
-  if (self._opts.$data) {
-    $dataSchema = __webpack_require__(501);
-    self.addMetaSchema($dataSchema, $dataSchema.$id, true);
-  }
-  if (self._opts.meta === false) return;
-  var metaSchema = __webpack_require__(502);
-  if (self._opts.$data) metaSchema = $dataMetaSchema(metaSchema, META_SUPPORT_DATA);
-  self.addMetaSchema(metaSchema, META_SCHEMA_ID, true);
-  self._refs['http://json-schema.org/schema'] = META_SCHEMA_ID;
-}
-
-
-function addInitialSchemas(self) {
-  var optsSchemas = self._opts.schemas;
-  if (!optsSchemas) return;
-  if (Array.isArray(optsSchemas)) self.addSchema(optsSchemas);
-  else for (var key in optsSchemas) self.addSchema(optsSchemas[key], key);
-}
-
-
-function addInitialFormats(self) {
-  for (var name in self._opts.formats) {
-    var format = self._opts.formats[name];
-    self.addFormat(name, format);
-  }
-}
-
-
-function checkUnique(self, id) {
-  if (self._schemas[id] || self._refs[id])
-    throw new Error('schema with key or id "' + id + '" already exists');
-}
-
-
-function getMetaSchemaOptions(self) {
-  var metaOpts = util.copy(self._opts);
-  for (var i=0; i<META_IGNORE_OPTIONS.length; i++)
-    delete metaOpts[META_IGNORE_OPTIONS[i]];
-  return metaOpts;
-}
-
-
-function setLogger(self) {
-  var logger = self._opts.logger;
-  if (logger === false) {
-    self.logger = {log: noop, warn: noop, error: noop};
-  } else {
-    if (logger === undefined) logger = console;
-    if (!(typeof logger == 'object' && logger.log && logger.warn && logger.error))
-      throw new Error('logger must implement log, warn and error methods');
-    self.logger = logger;
-  }
-}
-
-
-function noop() {}
-
-
-/***/ }),
-/* 474 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-
-var Cache = module.exports = function Cache() {
-  this._cache = {};
-};
-
-
-Cache.prototype.put = function Cache_put(key, value) {
-  this._cache[key] = value;
-};
-
-
-Cache.prototype.get = function Cache_get(key) {
-  return this._cache[key];
-};
-
-
-Cache.prototype.del = function Cache_del(key) {
-  delete this._cache[key];
-};
-
-
-Cache.prototype.clear = function Cache_clear() {
-  this._cache = {};
-};
-
-
-/***/ }),
-/* 475 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-//all requires must be explicit because browserify won't work with dynamic requires
-module.exports = {
-  '$ref': __webpack_require__(496),
-  allOf: __webpack_require__(481),
-  anyOf: __webpack_require__(482),
-  const: __webpack_require__(483),
-  contains: __webpack_require__(484),
-  dependencies: __webpack_require__(486),
-  'enum': __webpack_require__(487),
-  format: __webpack_require__(488),
-  items: __webpack_require__(489),
-  maximum: __webpack_require__(340),
-  minimum: __webpack_require__(340),
-  maxItems: __webpack_require__(341),
-  minItems: __webpack_require__(341),
-  maxLength: __webpack_require__(342),
-  minLength: __webpack_require__(342),
-  maxProperties: __webpack_require__(343),
-  minProperties: __webpack_require__(343),
-  multipleOf: __webpack_require__(490),
-  not: __webpack_require__(491),
-  oneOf: __webpack_require__(492),
-  pattern: __webpack_require__(493),
-  properties: __webpack_require__(494),
-  propertyNames: __webpack_require__(495),
-  required: __webpack_require__(497),
-  uniqueItems: __webpack_require__(498),
-  validate: __webpack_require__(344)
-};
-
-
-/***/ }),
-/* 476 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var MissingRefError = __webpack_require__(202).MissingRef;
-
-module.exports = compileAsync;
-
-
-/**
- * Creates validating function for passed schema with asynchronous loading of missing schemas.
- * `loadSchema` option should be a function that accepts schema uri and returns promise that resolves with the schema.
- * @this  Ajv
- * @param {Object}   schema schema object
- * @param {Boolean}  meta optional true to compile meta-schema; this parameter can be skipped
- * @param {Function} callback an optional node-style callback, it is called with 2 parameters: error (or null) and validating function.
- * @return {Promise} promise that resolves with a validating function.
- */
-function compileAsync(schema, meta, callback) {
-  /* eslint no-shadow: 0 */
-  /* global Promise */
-  /* jshint validthis: true */
-  var self = this;
-  if (typeof this._opts.loadSchema != 'function')
-    throw new Error('options.loadSchema should be a function');
-
-  if (typeof meta == 'function') {
-    callback = meta;
-    meta = undefined;
-  }
-
-  var p = loadMetaSchemaOf(schema).then(function () {
-    var schemaObj = self._addSchema(schema, undefined, meta);
-    return schemaObj.validate || _compileAsync(schemaObj);
-  });
-
-  if (callback) {
-    p.then(
-      function(v) { callback(null, v); },
-      callback
-    );
-  }
-
-  return p;
-
-
-  function loadMetaSchemaOf(sch) {
-    var $schema = sch.$schema;
-    return $schema && !self.getSchema($schema)
-            ? compileAsync.call(self, { $ref: $schema }, true)
-            : Promise.resolve();
-  }
-
-
-  function _compileAsync(schemaObj) {
-    try { return self._compile(schemaObj); }
-    catch(e) {
-      if (e instanceof MissingRefError) return loadMissingSchema(e);
-      throw e;
-    }
-
-
-    function loadMissingSchema(e) {
-      var ref = e.missingSchema;
-      if (added(ref)) throw new Error('Schema ' + ref + ' is loaded but ' + e.missingRef + ' cannot be resolved');
-
-      var schemaPromise = self._loadingSchemas[ref];
-      if (!schemaPromise) {
-        schemaPromise = self._loadingSchemas[ref] = self._opts.loadSchema(ref);
-        schemaPromise.then(removePromise, removePromise);
-      }
-
-      return schemaPromise.then(function (sch) {
-        if (!added(ref)) {
-          return loadMetaSchemaOf(sch).then(function () {
-            if (!added(ref)) self.addSchema(sch, ref, undefined, meta);
-          });
-        }
-      }).then(function() {
-        return _compileAsync(schemaObj);
-      });
-
-      function removePromise() {
-        delete self._loadingSchemas[ref];
-      }
-
-      function added(ref) {
-        return self._refs[ref] || self._schemas[ref];
-      }
-    }
-  }
-}
-
-
-/***/ }),
-/* 477 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var util = __webpack_require__(106);
-
-var DATE = /^\d\d\d\d-(\d\d)-(\d\d)$/;
-var DAYS = [0,31,29,31,30,31,30,31,31,30,31,30,31];
-var TIME = /^(\d\d):(\d\d):(\d\d)(\.\d+)?(z|[+-]\d\d:\d\d)?$/i;
-var HOSTNAME = /^[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[-0-9a-z]{0,61}[0-9a-z])?)*$/i;
-var URI = /^(?:[a-z][a-z0-9+\-.]*:)(?:\/?\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:]|%[0-9a-f]{2})*@)?(?:\[(?:(?:(?:(?:[0-9a-f]{1,4}:){6}|::(?:[0-9a-f]{1,4}:){5}|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}|(?:(?:[0-9a-f]{1,4}:){0,1}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::)(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::)|[Vv][0-9a-f]+\.[a-z0-9\-._~!$&'()*+,;=:]+)\]|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)|(?:[a-z0-9\-._~!$&'()*+,;=]|%[0-9a-f]{2})*)(?::\d*)?(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*|\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*)?|(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'()*+,;=:@]|%[0-9a-f]{2})*)*)(?:\?(?:[a-z0-9\-._~!$&'()*+,;=:@/?]|%[0-9a-f]{2})*)?(?:#(?:[a-z0-9\-._~!$&'()*+,;=:@/?]|%[0-9a-f]{2})*)?$/i;
-var URIREF = /^(?:[a-z][a-z0-9+\-.]*:)?(?:\/?\/(?:(?:[a-z0-9\-._~!$&'()*+,;=:]|%[0-9a-f]{2})*@)?(?:\[(?:(?:(?:(?:[0-9a-f]{1,4}:){6}|::(?:[0-9a-f]{1,4}:){5}|(?:[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){4}|(?:(?:[0-9a-f]{1,4}:){0,1}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){3}|(?:(?:[0-9a-f]{1,4}:){0,2}[0-9a-f]{1,4})?::(?:[0-9a-f]{1,4}:){2}|(?:(?:[0-9a-f]{1,4}:){0,3}[0-9a-f]{1,4})?::[0-9a-f]{1,4}:|(?:(?:[0-9a-f]{1,4}:){0,4}[0-9a-f]{1,4})?::)(?:[0-9a-f]{1,4}:[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?))|(?:(?:[0-9a-f]{1,4}:){0,5}[0-9a-f]{1,4})?::[0-9a-f]{1,4}|(?:(?:[0-9a-f]{1,4}:){0,6}[0-9a-f]{1,4})?::)|[Vv][0-9a-f]+\.[a-z0-9\-._~!$&'()*+,;=:]+)\]|(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)|(?:[a-z0-9\-._~!$&'"()*+,;=]|%[0-9a-f]{2})*)(?::\d*)?(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*|\/(?:(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*)?|(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})+(?:\/(?:[a-z0-9\-._~!$&'"()*+,;=:@]|%[0-9a-f]{2})*)*)?(?:\?(?:[a-z0-9\-._~!$&'"()*+,;=:@/?]|%[0-9a-f]{2})*)?(?:#(?:[a-z0-9\-._~!$&'"()*+,;=:@/?]|%[0-9a-f]{2})*)?$/i;
-// uri-template: https://tools.ietf.org/html/rfc6570
-var URITEMPLATE = /^(?:(?:[^\x00-\x20"'<>%\\^`{|}]|%[0-9a-f]{2})|\{[+#./;?&=,!@|]?(?:[a-z0-9_]|%[0-9a-f]{2})+(?::[1-9][0-9]{0,3}|\*)?(?:,(?:[a-z0-9_]|%[0-9a-f]{2})+(?::[1-9][0-9]{0,3}|\*)?)*\})*$/i;
-// For the source: https://gist.github.com/dperini/729294
-// For test cases: https://mathiasbynens.be/demo/url-regex
-// @todo Delete current URL in favour of the commented out URL rule when this issue is fixed https://github.com/eslint/eslint/issues/7983.
-// var URL = /^(?:(?:https?|ftp):\/\/)(?:\S+(?::\S*)?@)?(?:(?!10(?:\.\d{1,3}){3})(?!127(?:\.\d{1,3}){3})(?!169\.254(?:\.\d{1,3}){2})(?!192\.168(?:\.\d{1,3}){2})(?!172\.(?:1[6-9]|2\d|3[0-1])(?:\.\d{1,3}){2})(?:[1-9]\d?|1\d\d|2[01]\d|22[0-3])(?:\.(?:1?\d{1,2}|2[0-4]\d|25[0-5])){2}(?:\.(?:[1-9]\d?|1\d\d|2[0-4]\d|25[0-4]))|(?:(?:[a-z\u{00a1}-\u{ffff}0-9]+-?)*[a-z\u{00a1}-\u{ffff}0-9]+)(?:\.(?:[a-z\u{00a1}-\u{ffff}0-9]+-?)*[a-z\u{00a1}-\u{ffff}0-9]+)*(?:\.(?:[a-z\u{00a1}-\u{ffff}]{2,})))(?::\d{2,5})?(?:\/[^\s]*)?$/iu;
-var URL = /^(?:(?:http[s\u017F]?|ftp):\/\/)(?:(?:[\0-\x08\x0E-\x1F!-\x9F\xA1-\u167F\u1681-\u1FFF\u200B-\u2027\u202A-\u202E\u2030-\u205E\u2060-\u2FFF\u3001-\uD7FF\uE000-\uFEFE\uFF00-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])+(?::(?:[\0-\x08\x0E-\x1F!-\x9F\xA1-\u167F\u1681-\u1FFF\u200B-\u2027\u202A-\u202E\u2030-\u205E\u2060-\u2FFF\u3001-\uD7FF\uE000-\uFEFE\uFF00-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])*)?@)?(?:(?!10(?:\.[0-9]{1,3}){3})(?!127(?:\.[0-9]{1,3}){3})(?!169\.254(?:\.[0-9]{1,3}){2})(?!192\.168(?:\.[0-9]{1,3}){2})(?!172\.(?:1[6-9]|2[0-9]|3[01])(?:\.[0-9]{1,3}){2})(?:[1-9][0-9]?|1[0-9][0-9]|2[01][0-9]|22[0-3])(?:\.(?:1?[0-9]{1,2}|2[0-4][0-9]|25[0-5])){2}(?:\.(?:[1-9][0-9]?|1[0-9][0-9]|2[0-4][0-9]|25[0-4]))|(?:(?:(?:[0-9KSa-z\xA1-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])+-?)*(?:[0-9KSa-z\xA1-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])+)(?:\.(?:(?:[0-9KSa-z\xA1-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])+-?)*(?:[0-9KSa-z\xA1-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])+)*(?:\.(?:(?:[KSa-z\xA1-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]){2,})))(?::[0-9]{2,5})?(?:\/(?:[\0-\x08\x0E-\x1F!-\x9F\xA1-\u167F\u1681-\u1FFF\u200B-\u2027\u202A-\u202E\u2030-\u205E\u2060-\u2FFF\u3001-\uD7FF\uE000-\uFEFE\uFF00-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])*)?$/i;
-var UUID = /^(?:urn:uuid:)?[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}$/i;
-var JSON_POINTER = /^(?:\/(?:[^~/]|~0|~1)*)*$|^#(?:\/(?:[a-z0-9_\-.!$&'()*+,;:=@]|%[0-9a-f]{2}|~0|~1)*)*$/i;
-var RELATIVE_JSON_POINTER = /^(?:0|[1-9][0-9]*)(?:#|(?:\/(?:[^~/]|~0|~1)*)*)$/;
-
-
-module.exports = formats;
-
-function formats(mode) {
-  mode = mode == 'full' ? 'full' : 'fast';
-  return util.copy(formats[mode]);
-}
-
-
-formats.fast = {
-  // date: http://tools.ietf.org/html/rfc3339#section-5.6
-  date: /^\d\d\d\d-[0-1]\d-[0-3]\d$/,
-  // date-time: http://tools.ietf.org/html/rfc3339#section-5.6
-  time: /^[0-2]\d:[0-5]\d:[0-5]\d(?:\.\d+)?(?:z|[+-]\d\d:\d\d)?$/i,
-  'date-time': /^\d\d\d\d-[0-1]\d-[0-3]\d[t\s][0-2]\d:[0-5]\d:[0-5]\d(?:\.\d+)?(?:z|[+-]\d\d:\d\d)$/i,
-  // uri: https://github.com/mafintosh/is-my-json-valid/blob/master/formats.js
-  uri: /^(?:[a-z][a-z0-9+-.]*)(?::|\/)\/?[^\s]*$/i,
-  'uri-reference': /^(?:(?:[a-z][a-z0-9+-.]*:)?\/\/)?[^\s]*$/i,
-  'uri-template': URITEMPLATE,
-  url: URL,
-  // email (sources from jsen validator):
-  // http://stackoverflow.com/questions/201323/using-a-regular-expression-to-validate-an-email-address#answer-8829363
-  // http://www.w3.org/TR/html5/forms.html#valid-e-mail-address (search for 'willful violation')
-  email: /^[a-z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?(?:\.[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?)*$/i,
-  hostname: HOSTNAME,
-  // optimized https://www.safaribooksonline.com/library/view/regular-expressions-cookbook/9780596802837/ch07s16.html
-  ipv4: /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/,
-  // optimized http://stackoverflow.com/questions/53497/regular-expression-that-matches-valid-ipv6-addresses
-  ipv6: /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i,
-  regex: regex,
-  // uuid: http://tools.ietf.org/html/rfc4122
-  uuid: UUID,
-  // JSON-pointer: https://tools.ietf.org/html/rfc6901
-  // uri fragment: https://tools.ietf.org/html/rfc3986#appendix-A
-  'json-pointer': JSON_POINTER,
-  // relative JSON-pointer: http://tools.ietf.org/html/draft-luff-relative-json-pointer-00
-  'relative-json-pointer': RELATIVE_JSON_POINTER
-};
-
-
-formats.full = {
-  date: date,
-  time: time,
-  'date-time': date_time,
-  uri: uri,
-  'uri-reference': URIREF,
-  'uri-template': URITEMPLATE,
-  url: URL,
-  email: /^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&''*+/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?$/i,
-  hostname: hostname,
-  ipv4: /^(?:(?:25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d\d?)$/,
-  ipv6: /^\s*(?:(?:(?:[0-9a-f]{1,4}:){7}(?:[0-9a-f]{1,4}|:))|(?:(?:[0-9a-f]{1,4}:){6}(?::[0-9a-f]{1,4}|(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){5}(?:(?:(?::[0-9a-f]{1,4}){1,2})|:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(?:(?:[0-9a-f]{1,4}:){4}(?:(?:(?::[0-9a-f]{1,4}){1,3})|(?:(?::[0-9a-f]{1,4})?:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){3}(?:(?:(?::[0-9a-f]{1,4}){1,4})|(?:(?::[0-9a-f]{1,4}){0,2}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){2}(?:(?:(?::[0-9a-f]{1,4}){1,5})|(?:(?::[0-9a-f]{1,4}){0,3}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?:(?:[0-9a-f]{1,4}:){1}(?:(?:(?::[0-9a-f]{1,4}){1,6})|(?:(?::[0-9a-f]{1,4}){0,4}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(?::(?:(?:(?::[0-9a-f]{1,4}){1,7})|(?:(?::[0-9a-f]{1,4}){0,5}:(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(?:%.+)?\s*$/i,
-  regex: regex,
-  uuid: UUID,
-  'json-pointer': JSON_POINTER,
-  'relative-json-pointer': RELATIVE_JSON_POINTER
-};
-
-
-function date(str) {
-  // full-date from http://tools.ietf.org/html/rfc3339#section-5.6
-  var matches = str.match(DATE);
-  if (!matches) return false;
-
-  var month = +matches[1];
-  var day = +matches[2];
-  return month >= 1 && month <= 12 && day >= 1 && day <= DAYS[month];
-}
-
-
-function time(str, full) {
-  var matches = str.match(TIME);
-  if (!matches) return false;
-
-  var hour = matches[1];
-  var minute = matches[2];
-  var second = matches[3];
-  var timeZone = matches[5];
-  return hour <= 23 && minute <= 59 && second <= 59 && (!full || timeZone);
-}
-
-
-var DATE_TIME_SEPARATOR = /t|\s/i;
-function date_time(str) {
-  // http://tools.ietf.org/html/rfc3339#section-5.6
-  var dateTime = str.split(DATE_TIME_SEPARATOR);
-  return dateTime.length == 2 && date(dateTime[0]) && time(dateTime[1], true);
-}
-
-
-function hostname(str) {
-  // https://tools.ietf.org/html/rfc1034#section-3.5
-  // https://tools.ietf.org/html/rfc1123#section-2
-  return str.length <= 255 && HOSTNAME.test(str);
-}
-
-
-var NOT_URI_FRAGMENT = /\/|:/;
-function uri(str) {
-  // http://jmrware.com/articles/2009/uri_regexp/URI_regex.html + optional protocol + required "."
-  return NOT_URI_FRAGMENT.test(str) && URI.test(str);
-}
-
-
-var Z_ANCHOR = /[^\\]\\Z/;
-function regex(str) {
-  if (Z_ANCHOR.test(str)) return false;
-  try {
-    new RegExp(str);
-    return true;
-  } catch(e) {
-    return false;
-  }
-}
-
-
-/***/ }),
-/* 478 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var resolve = __webpack_require__(203)
-  , util = __webpack_require__(106)
-  , errorClasses = __webpack_require__(202)
-  , stableStringify = __webpack_require__(389);
-
-var validateGenerator = __webpack_require__(344);
-
-/**
- * Functions below are used inside compiled validations function
- */
-
-var co = __webpack_require__(383);
-var ucs2length = util.ucs2length;
-var equal = __webpack_require__(204);
-
-// this error is thrown by async schemas to return validation errors via exception
-var ValidationError = errorClasses.Validation;
-
-module.exports = compile;
-
-
-/**
- * Compiles schema to validation function
- * @this   Ajv
- * @param  {Object} schema schema object
- * @param  {Object} root object with information about the root schema for this schema
- * @param  {Object} localRefs the hash of local references inside the schema (created by resolve.id), used for inline resolution
- * @param  {String} baseId base ID for IDs in the schema
- * @return {Function} validation function
- */
-function compile(schema, root, localRefs, baseId) {
-  /* jshint validthis: true, evil: true */
-  /* eslint no-shadow: 0 */
-  var self = this
-    , opts = this._opts
-    , refVal = [ undefined ]
-    , refs = {}
-    , patterns = []
-    , patternsHash = {}
-    , defaults = []
-    , defaultsHash = {}
-    , customRules = [];
-
-  root = root || { schema: schema, refVal: refVal, refs: refs };
-
-  var c = checkCompiling.call(this, schema, root, baseId);
-  var compilation = this._compilations[c.index];
-  if (c.compiling) return (compilation.callValidate = callValidate);
-
-  var formats = this._formats;
-  var RULES = this.RULES;
-
-  try {
-    var v = localCompile(schema, root, localRefs, baseId);
-    compilation.validate = v;
-    var cv = compilation.callValidate;
-    if (cv) {
-      cv.schema = v.schema;
-      cv.errors = null;
-      cv.refs = v.refs;
-      cv.refVal = v.refVal;
-      cv.root = v.root;
-      cv.$async = v.$async;
-      if (opts.sourceCode) cv.source = v.source;
-    }
-    return v;
-  } finally {
-    endCompiling.call(this, schema, root, baseId);
-  }
-
-  function callValidate() {
-    var validate = compilation.validate;
-    var result = validate.apply(null, arguments);
-    callValidate.errors = validate.errors;
-    return result;
-  }
-
-  function localCompile(_schema, _root, localRefs, baseId) {
-    var isRoot = !_root || (_root && _root.schema == _schema);
-    if (_root.schema != root.schema)
-      return compile.call(self, _schema, _root, localRefs, baseId);
-
-    var $async = _schema.$async === true;
-
-    var sourceCode = validateGenerator({
-      isTop: true,
-      schema: _schema,
-      isRoot: isRoot,
-      baseId: baseId,
-      root: _root,
-      schemaPath: '',
-      errSchemaPath: '#',
-      errorPath: '""',
-      MissingRefError: errorClasses.MissingRef,
-      RULES: RULES,
-      validate: validateGenerator,
-      util: util,
-      resolve: resolve,
-      resolveRef: resolveRef,
-      usePattern: usePattern,
-      useDefault: useDefault,
-      useCustomRule: useCustomRule,
-      opts: opts,
-      formats: formats,
-      logger: self.logger,
-      self: self
-    });
-
-    sourceCode = vars(refVal, refValCode) + vars(patterns, patternCode)
-                   + vars(defaults, defaultCode) + vars(customRules, customRuleCode)
-                   + sourceCode;
-
-    if (opts.processCode) sourceCode = opts.processCode(sourceCode);
-    // console.log('\n\n\n *** \n', JSON.stringify(sourceCode));
-    var validate;
-    try {
-      var makeValidate = new Function(
-        'self',
-        'RULES',
-        'formats',
-        'root',
-        'refVal',
-        'defaults',
-        'customRules',
-        'co',
-        'equal',
-        'ucs2length',
-        'ValidationError',
-        sourceCode
-      );
-
-      validate = makeValidate(
-        self,
-        RULES,
-        formats,
-        root,
-        refVal,
-        defaults,
-        customRules,
-        co,
-        equal,
-        ucs2length,
-        ValidationError
-      );
-
-      refVal[0] = validate;
-    } catch(e) {
-      self.logger.error('Error compiling schema, function code:', sourceCode);
-      throw e;
-    }
-
-    validate.schema = _schema;
-    validate.errors = null;
-    validate.refs = refs;
-    validate.refVal = refVal;
-    validate.root = isRoot ? validate : _root;
-    if ($async) validate.$async = true;
-    if (opts.sourceCode === true) {
-      validate.source = {
-        code: sourceCode,
-        patterns: patterns,
-        defaults: defaults
-      };
-    }
-
-    return validate;
-  }
-
-  function resolveRef(baseId, ref, isRoot) {
-    ref = resolve.url(baseId, ref);
-    var refIndex = refs[ref];
-    var _refVal, refCode;
-    if (refIndex !== undefined) {
-      _refVal = refVal[refIndex];
-      refCode = 'refVal[' + refIndex + ']';
-      return resolvedRef(_refVal, refCode);
-    }
-    if (!isRoot && root.refs) {
-      var rootRefId = root.refs[ref];
-      if (rootRefId !== undefined) {
-        _refVal = root.refVal[rootRefId];
-        refCode = addLocalRef(ref, _refVal);
-        return resolvedRef(_refVal, refCode);
-      }
-    }
-
-    refCode = addLocalRef(ref);
-    var v = resolve.call(self, localCompile, root, ref);
-    if (v === undefined) {
-      var localSchema = localRefs && localRefs[ref];
-      if (localSchema) {
-        v = resolve.inlineRef(localSchema, opts.inlineRefs)
-            ? localSchema
-            : compile.call(self, localSchema, root, localRefs, baseId);
-      }
-    }
-
-    if (v === undefined) {
-      removeLocalRef(ref);
-    } else {
-      replaceLocalRef(ref, v);
-      return resolvedRef(v, refCode);
-    }
-  }
-
-  function addLocalRef(ref, v) {
-    var refId = refVal.length;
-    refVal[refId] = v;
-    refs[ref] = refId;
-    return 'refVal' + refId;
-  }
-
-  function removeLocalRef(ref) {
-    delete refs[ref];
-  }
-
-  function replaceLocalRef(ref, v) {
-    var refId = refs[ref];
-    refVal[refId] = v;
-  }
-
-  function resolvedRef(refVal, code) {
-    return typeof refVal == 'object' || typeof refVal == 'boolean'
-            ? { code: code, schema: refVal, inline: true }
-            : { code: code, $async: refVal && refVal.$async };
-  }
-
-  function usePattern(regexStr) {
-    var index = patternsHash[regexStr];
-    if (index === undefined) {
-      index = patternsHash[regexStr] = patterns.length;
-      patterns[index] = regexStr;
-    }
-    return 'pattern' + index;
-  }
-
-  function useDefault(value) {
-    switch (typeof value) {
-      case 'boolean':
-      case 'number':
-        return '' + value;
-      case 'string':
-        return util.toQuotedString(value);
-      case 'object':
-        if (value === null) return 'null';
-        var valueStr = stableStringify(value);
-        var index = defaultsHash[valueStr];
-        if (index === undefined) {
-          index = defaultsHash[valueStr] = defaults.length;
-          defaults[index] = value;
-        }
-        return 'default' + index;
-    }
-  }
-
-  function useCustomRule(rule, schema, parentSchema, it) {
-    var validateSchema = rule.definition.validateSchema;
-    if (validateSchema && self._opts.validateSchema !== false) {
-      var valid = validateSchema(schema);
-      if (!valid) {
-        var message = 'keyword schema is invalid: ' + self.errorsText(validateSchema.errors);
-        if (self._opts.validateSchema == 'log') self.logger.error(message);
-        else throw new Error(message);
-      }
-    }
-
-    var compile = rule.definition.compile
-      , inline = rule.definition.inline
-      , macro = rule.definition.macro;
-
-    var validate;
-    if (compile) {
-      validate = compile.call(self, schema, parentSchema, it);
-    } else if (macro) {
-      validate = macro.call(self, schema, parentSchema, it);
-      if (opts.validateSchema !== false) self.validateSchema(validate, true);
-    } else if (inline) {
-      validate = inline.call(self, it, rule.keyword, schema, parentSchema);
-    } else {
-      validate = rule.definition.validate;
-      if (!validate) return;
-    }
-
-    if (validate === undefined)
-      throw new Error('custom keyword "' + rule.keyword + '"failed to compile');
-
-    var index = customRules.length;
-    customRules[index] = validate;
-
-    return {
-      code: 'customRule' + index,
-      validate: validate
-    };
-  }
-}
-
-
-/**
- * Checks if the schema is currently compiled
- * @this   Ajv
- * @param  {Object} schema schema to compile
- * @param  {Object} root root object
- * @param  {String} baseId base schema ID
- * @return {Object} object with properties "index" (compilation index) and "compiling" (boolean)
- */
-function checkCompiling(schema, root, baseId) {
-  /* jshint validthis: true */
-  var index = compIndex.call(this, schema, root, baseId);
-  if (index >= 0) return { index: index, compiling: true };
-  index = this._compilations.length;
-  this._compilations[index] = {
-    schema: schema,
-    root: root,
-    baseId: baseId
-  };
-  return { index: index, compiling: false };
-}
-
-
-/**
- * Removes the schema from the currently compiled list
- * @this   Ajv
- * @param  {Object} schema schema to compile
- * @param  {Object} root root object
- * @param  {String} baseId base schema ID
- */
-function endCompiling(schema, root, baseId) {
-  /* jshint validthis: true */
-  var i = compIndex.call(this, schema, root, baseId);
-  if (i >= 0) this._compilations.splice(i, 1);
-}
-
-
-/**
- * Index of schema compilation in the currently compiled list
- * @this   Ajv
- * @param  {Object} schema schema to compile
- * @param  {Object} root root object
- * @param  {String} baseId base schema ID
- * @return {Integer} compilation index
- */
-function compIndex(schema, root, baseId) {
-  /* jshint validthis: true */
-  for (var i=0; i<this._compilations.length; i++) {
-    var c = this._compilations[i];
-    if (c.schema == schema && c.root == root && c.baseId == baseId) return i;
-  }
-  return -1;
-}
-
-
-function patternCode(i, patterns) {
-  return 'var pattern' + i + ' = new RegExp(' + util.toQuotedString(patterns[i]) + ');';
-}
-
-
-function defaultCode(i) {
-  return 'var default' + i + ' = defaults[' + i + '];';
-}
-
-
-function refValCode(i, refVal) {
-  return refVal[i] === undefined ? '' : 'var refVal' + i + ' = refVal[' + i + '];';
-}
-
-
-function customRuleCode(i) {
-  return 'var customRule' + i + ' = customRules[' + i + '];';
-}
-
-
-function vars(arr, statement) {
-  if (!arr.length) return '';
-  var code = '';
-  for (var i=0; i<arr.length; i++)
-    code += statement(i, arr);
-  return code;
-}
-
-
-/***/ }),
-/* 479 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var ruleModules = __webpack_require__(475)
-  , toHash = __webpack_require__(106).toHash;
-
-module.exports = function rules() {
-  var RULES = [
-    { type: 'number',
-      rules: [ { 'maximum': ['exclusiveMaximum'] },
-               { 'minimum': ['exclusiveMinimum'] }, 'multipleOf', 'format'] },
-    { type: 'string',
-      rules: [ 'maxLength', 'minLength', 'pattern', 'format' ] },
-    { type: 'array',
-      rules: [ 'maxItems', 'minItems', 'uniqueItems', 'contains', 'items' ] },
-    { type: 'object',
-      rules: [ 'maxProperties', 'minProperties', 'required', 'dependencies', 'propertyNames',
-               { 'properties': ['additionalProperties', 'patternProperties'] } ] },
-    { rules: [ '$ref', 'const', 'enum', 'not', 'anyOf', 'oneOf', 'allOf' ] }
-  ];
-
-  var ALL = [ 'type' ];
-  var KEYWORDS = [
-    'additionalItems', '$schema', '$id', 'id', 'title',
-    'description', 'default', 'definitions'
-  ];
-  var TYPES = [ 'number', 'integer', 'string', 'array', 'object', 'boolean', 'null' ];
-  RULES.all = toHash(ALL);
-  RULES.types = toHash(TYPES);
-
-  RULES.forEach(function (group) {
-    group.rules = group.rules.map(function (keyword) {
-      var implKeywords;
-      if (typeof keyword == 'object') {
-        var key = Object.keys(keyword)[0];
-        implKeywords = keyword[key];
-        keyword = key;
-        implKeywords.forEach(function (k) {
-          ALL.push(k);
-          RULES.all[k] = true;
-        });
-      }
-      ALL.push(keyword);
-      var rule = RULES.all[keyword] = {
-        keyword: keyword,
-        code: ruleModules[keyword],
-        implements: implKeywords
-      };
-      return rule;
-    });
-
-    if (group.type) RULES.types[group.type] = group;
-  });
-
-  RULES.keywords = toHash(ALL.concat(KEYWORDS));
-  RULES.custom = {};
-
-  return RULES;
-};
-
-
-/***/ }),
-/* 480 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// https://mathiasbynens.be/notes/javascript-encoding
-// https://github.com/bestiejs/punycode.js - punycode.ucs2.decode
-module.exports = function ucs2length(str) {
-  var length = 0
-    , len = str.length
-    , pos = 0
-    , value;
-  while (pos < len) {
-    length++;
-    value = str.charCodeAt(pos++);
-    if (value >= 0xD800 && value <= 0xDBFF && pos < len) {
-      // high surrogate, and there is a next character
-      value = str.charCodeAt(pos);
-      if ((value & 0xFC00) == 0xDC00) pos++; // low surrogate
-    }
-  }
-  return length;
-};
-
-
-/***/ }),
-/* 481 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_allOf(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $currentBaseId = $it.baseId,
-    $allSchemasEmpty = true;
-  var arr1 = $schema;
-  if (arr1) {
-    var $sch, $i = -1,
-      l1 = arr1.length - 1;
-    while ($i < l1) {
-      $sch = arr1[$i += 1];
-      if (it.util.schemaHasRules($sch, it.RULES.all)) {
-        $allSchemasEmpty = false;
-        $it.schema = $sch;
-        $it.schemaPath = $schemaPath + '[' + $i + ']';
-        $it.errSchemaPath = $errSchemaPath + '/' + $i;
-        out += '  ' + (it.validate($it)) + ' ';
-        $it.baseId = $currentBaseId;
-        if ($breakOnError) {
-          out += ' if (' + ($nextValid) + ') { ';
-          $closingBraces += '}';
-        }
-      }
-    }
-  }
-  if ($breakOnError) {
-    if ($allSchemasEmpty) {
-      out += ' if (true) { ';
-    } else {
-      out += ' ' + ($closingBraces.slice(0, -1)) + ' ';
-    }
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 482 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_anyOf(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $noEmptySchema = $schema.every(function($sch) {
-    return it.util.schemaHasRules($sch, it.RULES.all);
-  });
-  if ($noEmptySchema) {
-    var $currentBaseId = $it.baseId;
-    out += ' var ' + ($errs) + ' = errors; var ' + ($valid) + ' = false;  ';
-    var $wasComposite = it.compositeRule;
-    it.compositeRule = $it.compositeRule = true;
-    var arr1 = $schema;
-    if (arr1) {
-      var $sch, $i = -1,
-        l1 = arr1.length - 1;
-      while ($i < l1) {
-        $sch = arr1[$i += 1];
-        $it.schema = $sch;
-        $it.schemaPath = $schemaPath + '[' + $i + ']';
-        $it.errSchemaPath = $errSchemaPath + '/' + $i;
-        out += '  ' + (it.validate($it)) + ' ';
-        $it.baseId = $currentBaseId;
-        out += ' ' + ($valid) + ' = ' + ($valid) + ' || ' + ($nextValid) + '; if (!' + ($valid) + ') { ';
-        $closingBraces += '}';
-      }
-    }
-    it.compositeRule = $it.compositeRule = $wasComposite;
-    out += ' ' + ($closingBraces) + ' if (!' + ($valid) + ') {   var err =   '; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ('anyOf') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'should match some schema in anyOf\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError(vErrors); ';
-      } else {
-        out += ' validate.errors = vErrors; return false; ';
-      }
-    }
-    out += ' } else {  errors = ' + ($errs) + '; if (vErrors !== null) { if (' + ($errs) + ') vErrors.length = ' + ($errs) + '; else vErrors = null; } ';
-    if (it.opts.allErrors) {
-      out += ' } ';
-    }
-    out = it.util.cleanUpCode(out);
-  } else {
-    if ($breakOnError) {
-      out += ' if (true) { ';
-    }
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 483 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_const(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  if (!$isData) {
-    out += ' var schema' + ($lvl) + ' = validate.schema' + ($schemaPath) + ';';
-  }
-  out += 'var ' + ($valid) + ' = equal(' + ($data) + ', schema' + ($lvl) + '); if (!' + ($valid) + ') {   ';
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('const') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should be equal to constant\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += ' }';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 484 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_contains(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $idx = 'i' + $lvl,
-    $dataNxt = $it.dataLevel = it.dataLevel + 1,
-    $nextData = 'data' + $dataNxt,
-    $currentBaseId = it.baseId,
-    $nonEmptySchema = it.util.schemaHasRules($schema, it.RULES.all);
-  out += 'var ' + ($errs) + ' = errors;var ' + ($valid) + ';';
-  if ($nonEmptySchema) {
-    var $wasComposite = it.compositeRule;
-    it.compositeRule = $it.compositeRule = true;
-    $it.schema = $schema;
-    $it.schemaPath = $schemaPath;
-    $it.errSchemaPath = $errSchemaPath;
-    out += ' var ' + ($nextValid) + ' = false; for (var ' + ($idx) + ' = 0; ' + ($idx) + ' < ' + ($data) + '.length; ' + ($idx) + '++) { ';
-    $it.errorPath = it.util.getPathExpr(it.errorPath, $idx, it.opts.jsonPointers, true);
-    var $passData = $data + '[' + $idx + ']';
-    $it.dataPathArr[$dataNxt] = $idx;
-    var $code = it.validate($it);
-    $it.baseId = $currentBaseId;
-    if (it.util.varOccurences($code, $nextData) < 2) {
-      out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-    } else {
-      out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-    }
-    out += ' if (' + ($nextValid) + ') break; }  ';
-    it.compositeRule = $it.compositeRule = $wasComposite;
-    out += ' ' + ($closingBraces) + ' if (!' + ($nextValid) + ') {';
-  } else {
-    out += ' if (' + ($data) + '.length == 0) {';
-  }
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('contains') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should contain a valid item\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += ' } else { ';
-  if ($nonEmptySchema) {
-    out += '  errors = ' + ($errs) + '; if (vErrors !== null) { if (' + ($errs) + ') vErrors.length = ' + ($errs) + '; else vErrors = null; } ';
-  }
-  if (it.opts.allErrors) {
-    out += ' } ';
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 485 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_custom(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $errorKeyword;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $rule = this,
-    $definition = 'definition' + $lvl,
-    $rDef = $rule.definition,
-    $closingBraces = '';
-  var $compile, $inline, $macro, $ruleValidate, $validateCode;
-  if ($isData && $rDef.$data) {
-    $validateCode = 'keywordValidate' + $lvl;
-    var $validateSchema = $rDef.validateSchema;
-    out += ' var ' + ($definition) + ' = RULES.custom[\'' + ($keyword) + '\'].definition; var ' + ($validateCode) + ' = ' + ($definition) + '.validate;';
-  } else {
-    $ruleValidate = it.useCustomRule($rule, $schema, it.schema, it);
-    if (!$ruleValidate) return;
-    $schemaValue = 'validate.schema' + $schemaPath;
-    $validateCode = $ruleValidate.code;
-    $compile = $rDef.compile;
-    $inline = $rDef.inline;
-    $macro = $rDef.macro;
-  }
-  var $ruleErrs = $validateCode + '.errors',
-    $i = 'i' + $lvl,
-    $ruleErr = 'ruleErr' + $lvl,
-    $asyncKeyword = $rDef.async;
-  if ($asyncKeyword && !it.async) throw new Error('async keyword in sync schema');
-  if (!($inline || $macro)) {
-    out += '' + ($ruleErrs) + ' = null;';
-  }
-  out += 'var ' + ($errs) + ' = errors;var ' + ($valid) + ';';
-  if ($isData && $rDef.$data) {
-    $closingBraces += '}';
-    out += ' if (' + ($schemaValue) + ' === undefined) { ' + ($valid) + ' = true; } else { ';
-    if ($validateSchema) {
-      $closingBraces += '}';
-      out += ' ' + ($valid) + ' = ' + ($definition) + '.validateSchema(' + ($schemaValue) + '); if (' + ($valid) + ') { ';
-    }
-  }
-  if ($inline) {
-    if ($rDef.statements) {
-      out += ' ' + ($ruleValidate.validate) + ' ';
-    } else {
-      out += ' ' + ($valid) + ' = ' + ($ruleValidate.validate) + '; ';
-    }
-  } else if ($macro) {
-    var $it = it.util.copy(it);
-    var $closingBraces = '';
-    $it.level++;
-    var $nextValid = 'valid' + $it.level;
-    $it.schema = $ruleValidate.validate;
-    $it.schemaPath = '';
-    var $wasComposite = it.compositeRule;
-    it.compositeRule = $it.compositeRule = true;
-    var $code = it.validate($it).replace(/validate\.schema/g, $validateCode);
-    it.compositeRule = $it.compositeRule = $wasComposite;
-    out += ' ' + ($code);
-  } else {
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = '';
-    out += '  ' + ($validateCode) + '.call( ';
-    if (it.opts.passContext) {
-      out += 'this';
-    } else {
-      out += 'self';
-    }
-    if ($compile || $rDef.schema === false) {
-      out += ' , ' + ($data) + ' ';
-    } else {
-      out += ' , ' + ($schemaValue) + ' , ' + ($data) + ' , validate.schema' + (it.schemaPath) + ' ';
-    }
-    out += ' , (dataPath || \'\')';
-    if (it.errorPath != '""') {
-      out += ' + ' + (it.errorPath);
-    }
-    var $parentData = $dataLvl ? 'data' + (($dataLvl - 1) || '') : 'parentData',
-      $parentDataProperty = $dataLvl ? it.dataPathArr[$dataLvl] : 'parentDataProperty';
-    out += ' , ' + ($parentData) + ' , ' + ($parentDataProperty) + ' , rootData )  ';
-    var def_callRuleValidate = out;
-    out = $$outStack.pop();
-    if ($rDef.errors === false) {
-      out += ' ' + ($valid) + ' = ';
-      if ($asyncKeyword) {
-        out += '' + (it.yieldAwait);
-      }
-      out += '' + (def_callRuleValidate) + '; ';
-    } else {
-      if ($asyncKeyword) {
-        $ruleErrs = 'customErrors' + $lvl;
-        out += ' var ' + ($ruleErrs) + ' = null; try { ' + ($valid) + ' = ' + (it.yieldAwait) + (def_callRuleValidate) + '; } catch (e) { ' + ($valid) + ' = false; if (e instanceof ValidationError) ' + ($ruleErrs) + ' = e.errors; else throw e; } ';
-      } else {
-        out += ' ' + ($ruleErrs) + ' = null; ' + ($valid) + ' = ' + (def_callRuleValidate) + '; ';
-      }
-    }
-  }
-  if ($rDef.modifying) {
-    out += ' if (' + ($parentData) + ') ' + ($data) + ' = ' + ($parentData) + '[' + ($parentDataProperty) + '];';
-  }
-  out += '' + ($closingBraces);
-  if ($rDef.valid) {
-    if ($breakOnError) {
-      out += ' if (true) { ';
-    }
-  } else {
-    out += ' if ( ';
-    if ($rDef.valid === undefined) {
-      out += ' !';
-      if ($macro) {
-        out += '' + ($nextValid);
-      } else {
-        out += '' + ($valid);
-      }
-    } else {
-      out += ' ' + (!$rDef.valid) + ' ';
-    }
-    out += ') { ';
-    $errorKeyword = $rule.keyword;
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = '';
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = ''; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ($errorKeyword || 'custom') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { keyword: \'' + ($rule.keyword) + '\' } ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'should pass "' + ($rule.keyword) + '" keyword validation\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    var __err = out;
-    out = $$outStack.pop();
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError([' + (__err) + ']); ';
-      } else {
-        out += ' validate.errors = [' + (__err) + ']; return false; ';
-      }
-    } else {
-      out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    }
-    var def_customError = out;
-    out = $$outStack.pop();
-    if ($inline) {
-      if ($rDef.errors) {
-        if ($rDef.errors != 'full') {
-          out += '  for (var ' + ($i) + '=' + ($errs) + '; ' + ($i) + '<errors; ' + ($i) + '++) { var ' + ($ruleErr) + ' = vErrors[' + ($i) + ']; if (' + ($ruleErr) + '.dataPath === undefined) ' + ($ruleErr) + '.dataPath = (dataPath || \'\') + ' + (it.errorPath) + '; if (' + ($ruleErr) + '.schemaPath === undefined) { ' + ($ruleErr) + '.schemaPath = "' + ($errSchemaPath) + '"; } ';
-          if (it.opts.verbose) {
-            out += ' ' + ($ruleErr) + '.schema = ' + ($schemaValue) + '; ' + ($ruleErr) + '.data = ' + ($data) + '; ';
-          }
-          out += ' } ';
-        }
-      } else {
-        if ($rDef.errors === false) {
-          out += ' ' + (def_customError) + ' ';
-        } else {
-          out += ' if (' + ($errs) + ' == errors) { ' + (def_customError) + ' } else {  for (var ' + ($i) + '=' + ($errs) + '; ' + ($i) + '<errors; ' + ($i) + '++) { var ' + ($ruleErr) + ' = vErrors[' + ($i) + ']; if (' + ($ruleErr) + '.dataPath === undefined) ' + ($ruleErr) + '.dataPath = (dataPath || \'\') + ' + (it.errorPath) + '; if (' + ($ruleErr) + '.schemaPath === undefined) { ' + ($ruleErr) + '.schemaPath = "' + ($errSchemaPath) + '"; } ';
-          if (it.opts.verbose) {
-            out += ' ' + ($ruleErr) + '.schema = ' + ($schemaValue) + '; ' + ($ruleErr) + '.data = ' + ($data) + '; ';
-          }
-          out += ' } } ';
-        }
-      }
-    } else if ($macro) {
-      out += '   var err =   '; /* istanbul ignore else */
-      if (it.createErrors !== false) {
-        out += ' { keyword: \'' + ($errorKeyword || 'custom') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { keyword: \'' + ($rule.keyword) + '\' } ';
-        if (it.opts.messages !== false) {
-          out += ' , message: \'should pass "' + ($rule.keyword) + '" keyword validation\' ';
-        }
-        if (it.opts.verbose) {
-          out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-        }
-        out += ' } ';
-      } else {
-        out += ' {} ';
-      }
-      out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-      if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-        if (it.async) {
-          out += ' throw new ValidationError(vErrors); ';
-        } else {
-          out += ' validate.errors = vErrors; return false; ';
-        }
-      }
-    } else {
-      if ($rDef.errors === false) {
-        out += ' ' + (def_customError) + ' ';
-      } else {
-        out += ' if (Array.isArray(' + ($ruleErrs) + ')) { if (vErrors === null) vErrors = ' + ($ruleErrs) + '; else vErrors = vErrors.concat(' + ($ruleErrs) + '); errors = vErrors.length;  for (var ' + ($i) + '=' + ($errs) + '; ' + ($i) + '<errors; ' + ($i) + '++) { var ' + ($ruleErr) + ' = vErrors[' + ($i) + ']; if (' + ($ruleErr) + '.dataPath === undefined) ' + ($ruleErr) + '.dataPath = (dataPath || \'\') + ' + (it.errorPath) + ';  ' + ($ruleErr) + '.schemaPath = "' + ($errSchemaPath) + '";  ';
-        if (it.opts.verbose) {
-          out += ' ' + ($ruleErr) + '.schema = ' + ($schemaValue) + '; ' + ($ruleErr) + '.data = ' + ($data) + '; ';
-        }
-        out += ' } } else { ' + (def_customError) + ' } ';
-      }
-    }
-    out += ' } ';
-    if ($breakOnError) {
-      out += ' else { ';
-    }
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 486 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_dependencies(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $schemaDeps = {},
-    $propertyDeps = {},
-    $ownProperties = it.opts.ownProperties;
-  for ($property in $schema) {
-    var $sch = $schema[$property];
-    var $deps = Array.isArray($sch) ? $propertyDeps : $schemaDeps;
-    $deps[$property] = $sch;
-  }
-  out += 'var ' + ($errs) + ' = errors;';
-  var $currentErrorPath = it.errorPath;
-  out += 'var missing' + ($lvl) + ';';
-  for (var $property in $propertyDeps) {
-    $deps = $propertyDeps[$property];
-    if ($deps.length) {
-      out += ' if ( ' + ($data) + (it.util.getProperty($property)) + ' !== undefined ';
-      if ($ownProperties) {
-        out += ' && Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($property)) + '\') ';
-      }
-      if ($breakOnError) {
-        out += ' && ( ';
-        var arr1 = $deps;
-        if (arr1) {
-          var $propertyKey, $i = -1,
-            l1 = arr1.length - 1;
-          while ($i < l1) {
-            $propertyKey = arr1[$i += 1];
-            if ($i) {
-              out += ' || ';
-            }
-            var $prop = it.util.getProperty($propertyKey),
-              $useData = $data + $prop;
-            out += ' ( ( ' + ($useData) + ' === undefined ';
-            if ($ownProperties) {
-              out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-            }
-            out += ') && (missing' + ($lvl) + ' = ' + (it.util.toQuotedString(it.opts.jsonPointers ? $propertyKey : $prop)) + ') ) ';
-          }
-        }
-        out += ')) {  ';
-        var $propertyPath = 'missing' + $lvl,
-          $missingProperty = '\' + ' + $propertyPath + ' + \'';
-        if (it.opts._errorDataPathProperty) {
-          it.errorPath = it.opts.jsonPointers ? it.util.getPathExpr($currentErrorPath, $propertyPath, true) : $currentErrorPath + ' + ' + $propertyPath;
-        }
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ('dependencies') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { property: \'' + (it.util.escapeQuotes($property)) + '\', missingProperty: \'' + ($missingProperty) + '\', depsCount: ' + ($deps.length) + ', deps: \'' + (it.util.escapeQuotes($deps.length == 1 ? $deps[0] : $deps.join(", "))) + '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'should have ';
-            if ($deps.length == 1) {
-              out += 'property ' + (it.util.escapeQuotes($deps[0]));
-            } else {
-              out += 'properties ' + (it.util.escapeQuotes($deps.join(", ")));
-            }
-            out += ' when property ' + (it.util.escapeQuotes($property)) + ' is present\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-      } else {
-        out += ' ) { ';
-        var arr2 = $deps;
-        if (arr2) {
-          var $propertyKey, i2 = -1,
-            l2 = arr2.length - 1;
-          while (i2 < l2) {
-            $propertyKey = arr2[i2 += 1];
-            var $prop = it.util.getProperty($propertyKey),
-              $missingProperty = it.util.escapeQuotes($propertyKey),
-              $useData = $data + $prop;
-            if (it.opts._errorDataPathProperty) {
-              it.errorPath = it.util.getPath($currentErrorPath, $propertyKey, it.opts.jsonPointers);
-            }
-            out += ' if ( ' + ($useData) + ' === undefined ';
-            if ($ownProperties) {
-              out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-            }
-            out += ') {  var err =   '; /* istanbul ignore else */
-            if (it.createErrors !== false) {
-              out += ' { keyword: \'' + ('dependencies') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { property: \'' + (it.util.escapeQuotes($property)) + '\', missingProperty: \'' + ($missingProperty) + '\', depsCount: ' + ($deps.length) + ', deps: \'' + (it.util.escapeQuotes($deps.length == 1 ? $deps[0] : $deps.join(", "))) + '\' } ';
-              if (it.opts.messages !== false) {
-                out += ' , message: \'should have ';
-                if ($deps.length == 1) {
-                  out += 'property ' + (it.util.escapeQuotes($deps[0]));
-                } else {
-                  out += 'properties ' + (it.util.escapeQuotes($deps.join(", ")));
-                }
-                out += ' when property ' + (it.util.escapeQuotes($property)) + ' is present\' ';
-              }
-              if (it.opts.verbose) {
-                out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-              }
-              out += ' } ';
-            } else {
-              out += ' {} ';
-            }
-            out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; } ';
-          }
-        }
-      }
-      out += ' }   ';
-      if ($breakOnError) {
-        $closingBraces += '}';
-        out += ' else { ';
-      }
-    }
-  }
-  it.errorPath = $currentErrorPath;
-  var $currentBaseId = $it.baseId;
-  for (var $property in $schemaDeps) {
-    var $sch = $schemaDeps[$property];
-    if (it.util.schemaHasRules($sch, it.RULES.all)) {
-      out += ' ' + ($nextValid) + ' = true; if ( ' + ($data) + (it.util.getProperty($property)) + ' !== undefined ';
-      if ($ownProperties) {
-        out += ' && Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($property)) + '\') ';
-      }
-      out += ') { ';
-      $it.schema = $sch;
-      $it.schemaPath = $schemaPath + it.util.getProperty($property);
-      $it.errSchemaPath = $errSchemaPath + '/' + it.util.escapeFragment($property);
-      out += '  ' + (it.validate($it)) + ' ';
-      $it.baseId = $currentBaseId;
-      out += ' }  ';
-      if ($breakOnError) {
-        out += ' if (' + ($nextValid) + ') { ';
-        $closingBraces += '}';
-      }
-    }
-  }
-  if ($breakOnError) {
-    out += '   ' + ($closingBraces) + ' if (' + ($errs) + ' == errors) {';
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 487 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_enum(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $i = 'i' + $lvl,
-    $vSchema = 'schema' + $lvl;
-  if (!$isData) {
-    out += ' var ' + ($vSchema) + ' = validate.schema' + ($schemaPath) + ';';
-  }
-  out += 'var ' + ($valid) + ';';
-  if ($isData) {
-    out += ' if (schema' + ($lvl) + ' === undefined) ' + ($valid) + ' = true; else if (!Array.isArray(schema' + ($lvl) + ')) ' + ($valid) + ' = false; else {';
-  }
-  out += '' + ($valid) + ' = false;for (var ' + ($i) + '=0; ' + ($i) + '<' + ($vSchema) + '.length; ' + ($i) + '++) if (equal(' + ($data) + ', ' + ($vSchema) + '[' + ($i) + '])) { ' + ($valid) + ' = true; break; }';
-  if ($isData) {
-    out += '  }  ';
-  }
-  out += ' if (!' + ($valid) + ') {   ';
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('enum') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { allowedValues: schema' + ($lvl) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should be equal to one of the allowed values\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += ' }';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 488 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_format(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  if (it.opts.format === false) {
-    if ($breakOnError) {
-      out += ' if (true) { ';
-    }
-    return out;
-  }
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $unknownFormats = it.opts.unknownFormats,
-    $allowUnknown = Array.isArray($unknownFormats);
-  if ($isData) {
-    var $format = 'format' + $lvl,
-      $isObject = 'isObject' + $lvl,
-      $formatType = 'formatType' + $lvl;
-    out += ' var ' + ($format) + ' = formats[' + ($schemaValue) + ']; var ' + ($isObject) + ' = typeof ' + ($format) + ' == \'object\' && !(' + ($format) + ' instanceof RegExp) && ' + ($format) + '.validate; var ' + ($formatType) + ' = ' + ($isObject) + ' && ' + ($format) + '.type || \'string\'; if (' + ($isObject) + ') { ';
-    if (it.async) {
-      out += ' var async' + ($lvl) + ' = ' + ($format) + '.async; ';
-    }
-    out += ' ' + ($format) + ' = ' + ($format) + '.validate; } if (  ';
-    if ($isData) {
-      out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'string\') || ';
-    }
-    out += ' (';
-    if ($unknownFormats != 'ignore') {
-      out += ' (' + ($schemaValue) + ' && !' + ($format) + ' ';
-      if ($allowUnknown) {
-        out += ' && self._opts.unknownFormats.indexOf(' + ($schemaValue) + ') == -1 ';
-      }
-      out += ') || ';
-    }
-    out += ' (' + ($format) + ' && ' + ($formatType) + ' == \'' + ($ruleType) + '\' && !(typeof ' + ($format) + ' == \'function\' ? ';
-    if (it.async) {
-      out += ' (async' + ($lvl) + ' ? ' + (it.yieldAwait) + ' ' + ($format) + '(' + ($data) + ') : ' + ($format) + '(' + ($data) + ')) ';
-    } else {
-      out += ' ' + ($format) + '(' + ($data) + ') ';
-    }
-    out += ' : ' + ($format) + '.test(' + ($data) + '))))) {';
-  } else {
-    var $format = it.formats[$schema];
-    if (!$format) {
-      if ($unknownFormats == 'ignore') {
-        it.logger.warn('unknown format "' + $schema + '" ignored in schema at path "' + it.errSchemaPath + '"');
-        if ($breakOnError) {
-          out += ' if (true) { ';
-        }
-        return out;
-      } else if ($allowUnknown && $unknownFormats.indexOf($schema) >= 0) {
-        if ($breakOnError) {
-          out += ' if (true) { ';
-        }
-        return out;
-      } else {
-        throw new Error('unknown format "' + $schema + '" is used in schema at path "' + it.errSchemaPath + '"');
-      }
-    }
-    var $isObject = typeof $format == 'object' && !($format instanceof RegExp) && $format.validate;
-    var $formatType = $isObject && $format.type || 'string';
-    if ($isObject) {
-      var $async = $format.async === true;
-      $format = $format.validate;
-    }
-    if ($formatType != $ruleType) {
-      if ($breakOnError) {
-        out += ' if (true) { ';
-      }
-      return out;
-    }
-    if ($async) {
-      if (!it.async) throw new Error('async format in sync schema');
-      var $formatRef = 'formats' + it.util.getProperty($schema) + '.validate';
-      out += ' if (!(' + (it.yieldAwait) + ' ' + ($formatRef) + '(' + ($data) + '))) { ';
-    } else {
-      out += ' if (! ';
-      var $formatRef = 'formats' + it.util.getProperty($schema);
-      if ($isObject) $formatRef += '.validate';
-      if (typeof $format == 'function') {
-        out += ' ' + ($formatRef) + '(' + ($data) + ') ';
-      } else {
-        out += ' ' + ($formatRef) + '.test(' + ($data) + ') ';
-      }
-      out += ') { ';
-    }
-  }
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('format') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { format:  ';
-    if ($isData) {
-      out += '' + ($schemaValue);
-    } else {
-      out += '' + (it.util.toQuotedString($schema));
-    }
-    out += '  } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should match format "';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue) + ' + \'';
-      } else {
-        out += '' + (it.util.escapeQuotes($schema));
-      }
-      out += '"\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + (it.util.toQuotedString($schema));
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += ' } ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 489 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_items(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $idx = 'i' + $lvl,
-    $dataNxt = $it.dataLevel = it.dataLevel + 1,
-    $nextData = 'data' + $dataNxt,
-    $currentBaseId = it.baseId;
-  out += 'var ' + ($errs) + ' = errors;var ' + ($valid) + ';';
-  if (Array.isArray($schema)) {
-    var $additionalItems = it.schema.additionalItems;
-    if ($additionalItems === false) {
-      out += ' ' + ($valid) + ' = ' + ($data) + '.length <= ' + ($schema.length) + '; ';
-      var $currErrSchemaPath = $errSchemaPath;
-      $errSchemaPath = it.errSchemaPath + '/additionalItems';
-      out += '  if (!' + ($valid) + ') {   ';
-      var $$outStack = $$outStack || [];
-      $$outStack.push(out);
-      out = ''; /* istanbul ignore else */
-      if (it.createErrors !== false) {
-        out += ' { keyword: \'' + ('additionalItems') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { limit: ' + ($schema.length) + ' } ';
-        if (it.opts.messages !== false) {
-          out += ' , message: \'should NOT have more than ' + ($schema.length) + ' items\' ';
-        }
-        if (it.opts.verbose) {
-          out += ' , schema: false , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-        }
-        out += ' } ';
-      } else {
-        out += ' {} ';
-      }
-      var __err = out;
-      out = $$outStack.pop();
-      if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-        if (it.async) {
-          out += ' throw new ValidationError([' + (__err) + ']); ';
-        } else {
-          out += ' validate.errors = [' + (__err) + ']; return false; ';
-        }
-      } else {
-        out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-      }
-      out += ' } ';
-      $errSchemaPath = $currErrSchemaPath;
-      if ($breakOnError) {
-        $closingBraces += '}';
-        out += ' else { ';
-      }
-    }
-    var arr1 = $schema;
-    if (arr1) {
-      var $sch, $i = -1,
-        l1 = arr1.length - 1;
-      while ($i < l1) {
-        $sch = arr1[$i += 1];
-        if (it.util.schemaHasRules($sch, it.RULES.all)) {
-          out += ' ' + ($nextValid) + ' = true; if (' + ($data) + '.length > ' + ($i) + ') { ';
-          var $passData = $data + '[' + $i + ']';
-          $it.schema = $sch;
-          $it.schemaPath = $schemaPath + '[' + $i + ']';
-          $it.errSchemaPath = $errSchemaPath + '/' + $i;
-          $it.errorPath = it.util.getPathExpr(it.errorPath, $i, it.opts.jsonPointers, true);
-          $it.dataPathArr[$dataNxt] = $i;
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-          } else {
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-          }
-          out += ' }  ';
-          if ($breakOnError) {
-            out += ' if (' + ($nextValid) + ') { ';
-            $closingBraces += '}';
-          }
-        }
-      }
-    }
-    if (typeof $additionalItems == 'object' && it.util.schemaHasRules($additionalItems, it.RULES.all)) {
-      $it.schema = $additionalItems;
-      $it.schemaPath = it.schemaPath + '.additionalItems';
-      $it.errSchemaPath = it.errSchemaPath + '/additionalItems';
-      out += ' ' + ($nextValid) + ' = true; if (' + ($data) + '.length > ' + ($schema.length) + ') {  for (var ' + ($idx) + ' = ' + ($schema.length) + '; ' + ($idx) + ' < ' + ($data) + '.length; ' + ($idx) + '++) { ';
-      $it.errorPath = it.util.getPathExpr(it.errorPath, $idx, it.opts.jsonPointers, true);
-      var $passData = $data + '[' + $idx + ']';
-      $it.dataPathArr[$dataNxt] = $idx;
-      var $code = it.validate($it);
-      $it.baseId = $currentBaseId;
-      if (it.util.varOccurences($code, $nextData) < 2) {
-        out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-      } else {
-        out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-      }
-      if ($breakOnError) {
-        out += ' if (!' + ($nextValid) + ') break; ';
-      }
-      out += ' } }  ';
-      if ($breakOnError) {
-        out += ' if (' + ($nextValid) + ') { ';
-        $closingBraces += '}';
-      }
-    }
-  } else if (it.util.schemaHasRules($schema, it.RULES.all)) {
-    $it.schema = $schema;
-    $it.schemaPath = $schemaPath;
-    $it.errSchemaPath = $errSchemaPath;
-    out += '  for (var ' + ($idx) + ' = ' + (0) + '; ' + ($idx) + ' < ' + ($data) + '.length; ' + ($idx) + '++) { ';
-    $it.errorPath = it.util.getPathExpr(it.errorPath, $idx, it.opts.jsonPointers, true);
-    var $passData = $data + '[' + $idx + ']';
-    $it.dataPathArr[$dataNxt] = $idx;
-    var $code = it.validate($it);
-    $it.baseId = $currentBaseId;
-    if (it.util.varOccurences($code, $nextData) < 2) {
-      out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-    } else {
-      out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-    }
-    if ($breakOnError) {
-      out += ' if (!' + ($nextValid) + ') break; ';
-    }
-    out += ' }';
-  }
-  if ($breakOnError) {
-    out += ' ' + ($closingBraces) + ' if (' + ($errs) + ' == errors) {';
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 490 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_multipleOf(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  out += 'var division' + ($lvl) + ';if (';
-  if ($isData) {
-    out += ' ' + ($schemaValue) + ' !== undefined && ( typeof ' + ($schemaValue) + ' != \'number\' || ';
-  }
-  out += ' (division' + ($lvl) + ' = ' + ($data) + ' / ' + ($schemaValue) + ', ';
-  if (it.opts.multipleOfPrecision) {
-    out += ' Math.abs(Math.round(division' + ($lvl) + ') - division' + ($lvl) + ') > 1e-' + (it.opts.multipleOfPrecision) + ' ';
-  } else {
-    out += ' division' + ($lvl) + ' !== parseInt(division' + ($lvl) + ') ';
-  }
-  out += ' ) ';
-  if ($isData) {
-    out += '  )  ';
-  }
-  out += ' ) {   ';
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('multipleOf') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { multipleOf: ' + ($schemaValue) + ' } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should be multiple of ';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue);
-      } else {
-        out += '' + ($schemaValue) + '\'';
-      }
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + ($schema);
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += '} ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 491 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_not(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  if (it.util.schemaHasRules($schema, it.RULES.all)) {
-    $it.schema = $schema;
-    $it.schemaPath = $schemaPath;
-    $it.errSchemaPath = $errSchemaPath;
-    out += ' var ' + ($errs) + ' = errors;  ';
-    var $wasComposite = it.compositeRule;
-    it.compositeRule = $it.compositeRule = true;
-    $it.createErrors = false;
-    var $allErrorsOption;
-    if ($it.opts.allErrors) {
-      $allErrorsOption = $it.opts.allErrors;
-      $it.opts.allErrors = false;
-    }
-    out += ' ' + (it.validate($it)) + ' ';
-    $it.createErrors = true;
-    if ($allErrorsOption) $it.opts.allErrors = $allErrorsOption;
-    it.compositeRule = $it.compositeRule = $wasComposite;
-    out += ' if (' + ($nextValid) + ') {   ';
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = ''; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ('not') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'should NOT be valid\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    var __err = out;
-    out = $$outStack.pop();
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError([' + (__err) + ']); ';
-      } else {
-        out += ' validate.errors = [' + (__err) + ']; return false; ';
-      }
-    } else {
-      out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    }
-    out += ' } else {  errors = ' + ($errs) + '; if (vErrors !== null) { if (' + ($errs) + ') vErrors.length = ' + ($errs) + '; else vErrors = null; } ';
-    if (it.opts.allErrors) {
-      out += ' } ';
-    }
-  } else {
-    out += '  var err =   '; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ('not') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'should NOT be valid\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    if ($breakOnError) {
-      out += ' if (false) { ';
-    }
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 492 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_oneOf(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  out += 'var ' + ($errs) + ' = errors;var prevValid' + ($lvl) + ' = false;var ' + ($valid) + ' = false;';
-  var $currentBaseId = $it.baseId;
-  var $wasComposite = it.compositeRule;
-  it.compositeRule = $it.compositeRule = true;
-  var arr1 = $schema;
-  if (arr1) {
-    var $sch, $i = -1,
-      l1 = arr1.length - 1;
-    while ($i < l1) {
-      $sch = arr1[$i += 1];
-      if (it.util.schemaHasRules($sch, it.RULES.all)) {
-        $it.schema = $sch;
-        $it.schemaPath = $schemaPath + '[' + $i + ']';
-        $it.errSchemaPath = $errSchemaPath + '/' + $i;
-        out += '  ' + (it.validate($it)) + ' ';
-        $it.baseId = $currentBaseId;
-      } else {
-        out += ' var ' + ($nextValid) + ' = true; ';
-      }
-      if ($i) {
-        out += ' if (' + ($nextValid) + ' && prevValid' + ($lvl) + ') ' + ($valid) + ' = false; else { ';
-        $closingBraces += '}';
-      }
-      out += ' if (' + ($nextValid) + ') ' + ($valid) + ' = prevValid' + ($lvl) + ' = true;';
-    }
-  }
-  it.compositeRule = $it.compositeRule = $wasComposite;
-  out += '' + ($closingBraces) + 'if (!' + ($valid) + ') {   var err =   '; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('oneOf') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: {} ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should match exactly one schema in oneOf\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError(vErrors); ';
-    } else {
-      out += ' validate.errors = vErrors; return false; ';
-    }
-  }
-  out += '} else {  errors = ' + ($errs) + '; if (vErrors !== null) { if (' + ($errs) + ') vErrors.length = ' + ($errs) + '; else vErrors = null; }';
-  if (it.opts.allErrors) {
-    out += ' } ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 493 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_pattern(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $regexp = $isData ? '(new RegExp(' + $schemaValue + '))' : it.usePattern($schema);
-  out += 'if ( ';
-  if ($isData) {
-    out += ' (' + ($schemaValue) + ' !== undefined && typeof ' + ($schemaValue) + ' != \'string\') || ';
-  }
-  out += ' !' + ($regexp) + '.test(' + ($data) + ') ) {   ';
-  var $$outStack = $$outStack || [];
-  $$outStack.push(out);
-  out = ''; /* istanbul ignore else */
-  if (it.createErrors !== false) {
-    out += ' { keyword: \'' + ('pattern') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { pattern:  ';
-    if ($isData) {
-      out += '' + ($schemaValue);
-    } else {
-      out += '' + (it.util.toQuotedString($schema));
-    }
-    out += '  } ';
-    if (it.opts.messages !== false) {
-      out += ' , message: \'should match pattern "';
-      if ($isData) {
-        out += '\' + ' + ($schemaValue) + ' + \'';
-      } else {
-        out += '' + (it.util.escapeQuotes($schema));
-      }
-      out += '"\' ';
-    }
-    if (it.opts.verbose) {
-      out += ' , schema:  ';
-      if ($isData) {
-        out += 'validate.schema' + ($schemaPath);
-      } else {
-        out += '' + (it.util.toQuotedString($schema));
-      }
-      out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-    }
-    out += ' } ';
-  } else {
-    out += ' {} ';
-  }
-  var __err = out;
-  out = $$outStack.pop();
-  if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-    if (it.async) {
-      out += ' throw new ValidationError([' + (__err) + ']); ';
-    } else {
-      out += ' validate.errors = [' + (__err) + ']; return false; ';
-    }
-  } else {
-    out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-  }
-  out += '} ';
-  if ($breakOnError) {
-    out += ' else { ';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 494 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_properties(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  var $key = 'key' + $lvl,
-    $idx = 'idx' + $lvl,
-    $dataNxt = $it.dataLevel = it.dataLevel + 1,
-    $nextData = 'data' + $dataNxt,
-    $dataProperties = 'dataProperties' + $lvl;
-  var $schemaKeys = Object.keys($schema || {}),
-    $pProperties = it.schema.patternProperties || {},
-    $pPropertyKeys = Object.keys($pProperties),
-    $aProperties = it.schema.additionalProperties,
-    $someProperties = $schemaKeys.length || $pPropertyKeys.length,
-    $noAdditional = $aProperties === false,
-    $additionalIsSchema = typeof $aProperties == 'object' && Object.keys($aProperties).length,
-    $removeAdditional = it.opts.removeAdditional,
-    $checkAdditional = $noAdditional || $additionalIsSchema || $removeAdditional,
-    $ownProperties = it.opts.ownProperties,
-    $currentBaseId = it.baseId;
-  var $required = it.schema.required;
-  if ($required && !(it.opts.v5 && $required.$data) && $required.length < it.opts.loopRequired) var $requiredHash = it.util.toHash($required);
-  if (it.opts.patternGroups) {
-    var $pgProperties = it.schema.patternGroups || {},
-      $pgPropertyKeys = Object.keys($pgProperties);
-  }
-  out += 'var ' + ($errs) + ' = errors;var ' + ($nextValid) + ' = true;';
-  if ($ownProperties) {
-    out += ' var ' + ($dataProperties) + ' = undefined;';
-  }
-  if ($checkAdditional) {
-    if ($ownProperties) {
-      out += ' ' + ($dataProperties) + ' = ' + ($dataProperties) + ' || Object.keys(' + ($data) + '); for (var ' + ($idx) + '=0; ' + ($idx) + '<' + ($dataProperties) + '.length; ' + ($idx) + '++) { var ' + ($key) + ' = ' + ($dataProperties) + '[' + ($idx) + ']; ';
-    } else {
-      out += ' for (var ' + ($key) + ' in ' + ($data) + ') { ';
-    }
-    if ($someProperties) {
-      out += ' var isAdditional' + ($lvl) + ' = !(false ';
-      if ($schemaKeys.length) {
-        if ($schemaKeys.length > 5) {
-          out += ' || validate.schema' + ($schemaPath) + '[' + ($key) + '] ';
-        } else {
-          var arr1 = $schemaKeys;
-          if (arr1) {
-            var $propertyKey, i1 = -1,
-              l1 = arr1.length - 1;
-            while (i1 < l1) {
-              $propertyKey = arr1[i1 += 1];
-              out += ' || ' + ($key) + ' == ' + (it.util.toQuotedString($propertyKey)) + ' ';
-            }
-          }
-        }
-      }
-      if ($pPropertyKeys.length) {
-        var arr2 = $pPropertyKeys;
-        if (arr2) {
-          var $pProperty, $i = -1,
-            l2 = arr2.length - 1;
-          while ($i < l2) {
-            $pProperty = arr2[$i += 1];
-            out += ' || ' + (it.usePattern($pProperty)) + '.test(' + ($key) + ') ';
-          }
-        }
-      }
-      if (it.opts.patternGroups && $pgPropertyKeys.length) {
-        var arr3 = $pgPropertyKeys;
-        if (arr3) {
-          var $pgProperty, $i = -1,
-            l3 = arr3.length - 1;
-          while ($i < l3) {
-            $pgProperty = arr3[$i += 1];
-            out += ' || ' + (it.usePattern($pgProperty)) + '.test(' + ($key) + ') ';
-          }
-        }
-      }
-      out += ' ); if (isAdditional' + ($lvl) + ') { ';
-    }
-    if ($removeAdditional == 'all') {
-      out += ' delete ' + ($data) + '[' + ($key) + ']; ';
-    } else {
-      var $currentErrorPath = it.errorPath;
-      var $additionalProperty = '\' + ' + $key + ' + \'';
-      if (it.opts._errorDataPathProperty) {
-        it.errorPath = it.util.getPathExpr(it.errorPath, $key, it.opts.jsonPointers);
-      }
-      if ($noAdditional) {
-        if ($removeAdditional) {
-          out += ' delete ' + ($data) + '[' + ($key) + ']; ';
-        } else {
-          out += ' ' + ($nextValid) + ' = false; ';
-          var $currErrSchemaPath = $errSchemaPath;
-          $errSchemaPath = it.errSchemaPath + '/additionalProperties';
-          var $$outStack = $$outStack || [];
-          $$outStack.push(out);
-          out = ''; /* istanbul ignore else */
-          if (it.createErrors !== false) {
-            out += ' { keyword: \'' + ('additionalProperties') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { additionalProperty: \'' + ($additionalProperty) + '\' } ';
-            if (it.opts.messages !== false) {
-              out += ' , message: \'should NOT have additional properties\' ';
-            }
-            if (it.opts.verbose) {
-              out += ' , schema: false , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-            }
-            out += ' } ';
-          } else {
-            out += ' {} ';
-          }
-          var __err = out;
-          out = $$outStack.pop();
-          if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-            if (it.async) {
-              out += ' throw new ValidationError([' + (__err) + ']); ';
-            } else {
-              out += ' validate.errors = [' + (__err) + ']; return false; ';
-            }
-          } else {
-            out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-          }
-          $errSchemaPath = $currErrSchemaPath;
-          if ($breakOnError) {
-            out += ' break; ';
-          }
-        }
-      } else if ($additionalIsSchema) {
-        if ($removeAdditional == 'failing') {
-          out += ' var ' + ($errs) + ' = errors;  ';
-          var $wasComposite = it.compositeRule;
-          it.compositeRule = $it.compositeRule = true;
-          $it.schema = $aProperties;
-          $it.schemaPath = it.schemaPath + '.additionalProperties';
-          $it.errSchemaPath = it.errSchemaPath + '/additionalProperties';
-          $it.errorPath = it.opts._errorDataPathProperty ? it.errorPath : it.util.getPathExpr(it.errorPath, $key, it.opts.jsonPointers);
-          var $passData = $data + '[' + $key + ']';
-          $it.dataPathArr[$dataNxt] = $key;
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-          } else {
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-          }
-          out += ' if (!' + ($nextValid) + ') { errors = ' + ($errs) + '; if (validate.errors !== null) { if (errors) validate.errors.length = errors; else validate.errors = null; } delete ' + ($data) + '[' + ($key) + ']; }  ';
-          it.compositeRule = $it.compositeRule = $wasComposite;
-        } else {
-          $it.schema = $aProperties;
-          $it.schemaPath = it.schemaPath + '.additionalProperties';
-          $it.errSchemaPath = it.errSchemaPath + '/additionalProperties';
-          $it.errorPath = it.opts._errorDataPathProperty ? it.errorPath : it.util.getPathExpr(it.errorPath, $key, it.opts.jsonPointers);
-          var $passData = $data + '[' + $key + ']';
-          $it.dataPathArr[$dataNxt] = $key;
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-          } else {
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-          }
-          if ($breakOnError) {
-            out += ' if (!' + ($nextValid) + ') break; ';
-          }
-        }
-      }
-      it.errorPath = $currentErrorPath;
-    }
-    if ($someProperties) {
-      out += ' } ';
-    }
-    out += ' }  ';
-    if ($breakOnError) {
-      out += ' if (' + ($nextValid) + ') { ';
-      $closingBraces += '}';
-    }
-  }
-  var $useDefaults = it.opts.useDefaults && !it.compositeRule;
-  if ($schemaKeys.length) {
-    var arr4 = $schemaKeys;
-    if (arr4) {
-      var $propertyKey, i4 = -1,
-        l4 = arr4.length - 1;
-      while (i4 < l4) {
-        $propertyKey = arr4[i4 += 1];
-        var $sch = $schema[$propertyKey];
-        if (it.util.schemaHasRules($sch, it.RULES.all)) {
-          var $prop = it.util.getProperty($propertyKey),
-            $passData = $data + $prop,
-            $hasDefault = $useDefaults && $sch.default !== undefined;
-          $it.schema = $sch;
-          $it.schemaPath = $schemaPath + $prop;
-          $it.errSchemaPath = $errSchemaPath + '/' + it.util.escapeFragment($propertyKey);
-          $it.errorPath = it.util.getPath(it.errorPath, $propertyKey, it.opts.jsonPointers);
-          $it.dataPathArr[$dataNxt] = it.util.toQuotedString($propertyKey);
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            $code = it.util.varReplace($code, $nextData, $passData);
-            var $useData = $passData;
-          } else {
-            var $useData = $nextData;
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ';
-          }
-          if ($hasDefault) {
-            out += ' ' + ($code) + ' ';
-          } else {
-            if ($requiredHash && $requiredHash[$propertyKey]) {
-              out += ' if ( ' + ($useData) + ' === undefined ';
-              if ($ownProperties) {
-                out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-              }
-              out += ') { ' + ($nextValid) + ' = false; ';
-              var $currentErrorPath = it.errorPath,
-                $currErrSchemaPath = $errSchemaPath,
-                $missingProperty = it.util.escapeQuotes($propertyKey);
-              if (it.opts._errorDataPathProperty) {
-                it.errorPath = it.util.getPath($currentErrorPath, $propertyKey, it.opts.jsonPointers);
-              }
-              $errSchemaPath = it.errSchemaPath + '/required';
-              var $$outStack = $$outStack || [];
-              $$outStack.push(out);
-              out = ''; /* istanbul ignore else */
-              if (it.createErrors !== false) {
-                out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-                if (it.opts.messages !== false) {
-                  out += ' , message: \'';
-                  if (it.opts._errorDataPathProperty) {
-                    out += 'is a required property';
-                  } else {
-                    out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-                  }
-                  out += '\' ';
-                }
-                if (it.opts.verbose) {
-                  out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-                }
-                out += ' } ';
-              } else {
-                out += ' {} ';
-              }
-              var __err = out;
-              out = $$outStack.pop();
-              if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-                if (it.async) {
-                  out += ' throw new ValidationError([' + (__err) + ']); ';
-                } else {
-                  out += ' validate.errors = [' + (__err) + ']; return false; ';
-                }
-              } else {
-                out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-              }
-              $errSchemaPath = $currErrSchemaPath;
-              it.errorPath = $currentErrorPath;
-              out += ' } else { ';
-            } else {
-              if ($breakOnError) {
-                out += ' if ( ' + ($useData) + ' === undefined ';
-                if ($ownProperties) {
-                  out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-                }
-                out += ') { ' + ($nextValid) + ' = true; } else { ';
-              } else {
-                out += ' if (' + ($useData) + ' !== undefined ';
-                if ($ownProperties) {
-                  out += ' &&   Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-                }
-                out += ' ) { ';
-              }
-            }
-            out += ' ' + ($code) + ' } ';
-          }
-        }
-        if ($breakOnError) {
-          out += ' if (' + ($nextValid) + ') { ';
-          $closingBraces += '}';
-        }
-      }
-    }
-  }
-  if ($pPropertyKeys.length) {
-    var arr5 = $pPropertyKeys;
-    if (arr5) {
-      var $pProperty, i5 = -1,
-        l5 = arr5.length - 1;
-      while (i5 < l5) {
-        $pProperty = arr5[i5 += 1];
-        var $sch = $pProperties[$pProperty];
-        if (it.util.schemaHasRules($sch, it.RULES.all)) {
-          $it.schema = $sch;
-          $it.schemaPath = it.schemaPath + '.patternProperties' + it.util.getProperty($pProperty);
-          $it.errSchemaPath = it.errSchemaPath + '/patternProperties/' + it.util.escapeFragment($pProperty);
-          if ($ownProperties) {
-            out += ' ' + ($dataProperties) + ' = ' + ($dataProperties) + ' || Object.keys(' + ($data) + '); for (var ' + ($idx) + '=0; ' + ($idx) + '<' + ($dataProperties) + '.length; ' + ($idx) + '++) { var ' + ($key) + ' = ' + ($dataProperties) + '[' + ($idx) + ']; ';
-          } else {
-            out += ' for (var ' + ($key) + ' in ' + ($data) + ') { ';
-          }
-          out += ' if (' + (it.usePattern($pProperty)) + '.test(' + ($key) + ')) { ';
-          $it.errorPath = it.util.getPathExpr(it.errorPath, $key, it.opts.jsonPointers);
-          var $passData = $data + '[' + $key + ']';
-          $it.dataPathArr[$dataNxt] = $key;
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-          } else {
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-          }
-          if ($breakOnError) {
-            out += ' if (!' + ($nextValid) + ') break; ';
-          }
-          out += ' } ';
-          if ($breakOnError) {
-            out += ' else ' + ($nextValid) + ' = true; ';
-          }
-          out += ' }  ';
-          if ($breakOnError) {
-            out += ' if (' + ($nextValid) + ') { ';
-            $closingBraces += '}';
-          }
-        }
-      }
-    }
-  }
-  if (it.opts.patternGroups && $pgPropertyKeys.length) {
-    var arr6 = $pgPropertyKeys;
-    if (arr6) {
-      var $pgProperty, i6 = -1,
-        l6 = arr6.length - 1;
-      while (i6 < l6) {
-        $pgProperty = arr6[i6 += 1];
-        var $pgSchema = $pgProperties[$pgProperty],
-          $sch = $pgSchema.schema;
-        if (it.util.schemaHasRules($sch, it.RULES.all)) {
-          $it.schema = $sch;
-          $it.schemaPath = it.schemaPath + '.patternGroups' + it.util.getProperty($pgProperty) + '.schema';
-          $it.errSchemaPath = it.errSchemaPath + '/patternGroups/' + it.util.escapeFragment($pgProperty) + '/schema';
-          out += ' var pgPropCount' + ($lvl) + ' = 0;  ';
-          if ($ownProperties) {
-            out += ' ' + ($dataProperties) + ' = ' + ($dataProperties) + ' || Object.keys(' + ($data) + '); for (var ' + ($idx) + '=0; ' + ($idx) + '<' + ($dataProperties) + '.length; ' + ($idx) + '++) { var ' + ($key) + ' = ' + ($dataProperties) + '[' + ($idx) + ']; ';
-          } else {
-            out += ' for (var ' + ($key) + ' in ' + ($data) + ') { ';
-          }
-          out += ' if (' + (it.usePattern($pgProperty)) + '.test(' + ($key) + ')) { pgPropCount' + ($lvl) + '++; ';
-          $it.errorPath = it.util.getPathExpr(it.errorPath, $key, it.opts.jsonPointers);
-          var $passData = $data + '[' + $key + ']';
-          $it.dataPathArr[$dataNxt] = $key;
-          var $code = it.validate($it);
-          $it.baseId = $currentBaseId;
-          if (it.util.varOccurences($code, $nextData) < 2) {
-            out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-          } else {
-            out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-          }
-          if ($breakOnError) {
-            out += ' if (!' + ($nextValid) + ') break; ';
-          }
-          out += ' } ';
-          if ($breakOnError) {
-            out += ' else ' + ($nextValid) + ' = true; ';
-          }
-          out += ' }  ';
-          if ($breakOnError) {
-            out += ' if (' + ($nextValid) + ') { ';
-            $closingBraces += '}';
-          }
-          var $pgMin = $pgSchema.minimum,
-            $pgMax = $pgSchema.maximum;
-          if ($pgMin !== undefined || $pgMax !== undefined) {
-            out += ' var ' + ($valid) + ' = true; ';
-            var $currErrSchemaPath = $errSchemaPath;
-            if ($pgMin !== undefined) {
-              var $limit = $pgMin,
-                $reason = 'minimum',
-                $moreOrLess = 'less';
-              out += ' ' + ($valid) + ' = pgPropCount' + ($lvl) + ' >= ' + ($pgMin) + '; ';
-              $errSchemaPath = it.errSchemaPath + '/patternGroups/minimum';
-              out += '  if (!' + ($valid) + ') {   ';
-              var $$outStack = $$outStack || [];
-              $$outStack.push(out);
-              out = ''; /* istanbul ignore else */
-              if (it.createErrors !== false) {
-                out += ' { keyword: \'' + ('patternGroups') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { reason: \'' + ($reason) + '\', limit: ' + ($limit) + ', pattern: \'' + (it.util.escapeQuotes($pgProperty)) + '\' } ';
-                if (it.opts.messages !== false) {
-                  out += ' , message: \'should NOT have ' + ($moreOrLess) + ' than ' + ($limit) + ' properties matching pattern "' + (it.util.escapeQuotes($pgProperty)) + '"\' ';
-                }
-                if (it.opts.verbose) {
-                  out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-                }
-                out += ' } ';
-              } else {
-                out += ' {} ';
-              }
-              var __err = out;
-              out = $$outStack.pop();
-              if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-                if (it.async) {
-                  out += ' throw new ValidationError([' + (__err) + ']); ';
-                } else {
-                  out += ' validate.errors = [' + (__err) + ']; return false; ';
-                }
-              } else {
-                out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-              }
-              out += ' } ';
-              if ($pgMax !== undefined) {
-                out += ' else ';
-              }
-            }
-            if ($pgMax !== undefined) {
-              var $limit = $pgMax,
-                $reason = 'maximum',
-                $moreOrLess = 'more';
-              out += ' ' + ($valid) + ' = pgPropCount' + ($lvl) + ' <= ' + ($pgMax) + '; ';
-              $errSchemaPath = it.errSchemaPath + '/patternGroups/maximum';
-              out += '  if (!' + ($valid) + ') {   ';
-              var $$outStack = $$outStack || [];
-              $$outStack.push(out);
-              out = ''; /* istanbul ignore else */
-              if (it.createErrors !== false) {
-                out += ' { keyword: \'' + ('patternGroups') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { reason: \'' + ($reason) + '\', limit: ' + ($limit) + ', pattern: \'' + (it.util.escapeQuotes($pgProperty)) + '\' } ';
-                if (it.opts.messages !== false) {
-                  out += ' , message: \'should NOT have ' + ($moreOrLess) + ' than ' + ($limit) + ' properties matching pattern "' + (it.util.escapeQuotes($pgProperty)) + '"\' ';
-                }
-                if (it.opts.verbose) {
-                  out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-                }
-                out += ' } ';
-              } else {
-                out += ' {} ';
-              }
-              var __err = out;
-              out = $$outStack.pop();
-              if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-                if (it.async) {
-                  out += ' throw new ValidationError([' + (__err) + ']); ';
-                } else {
-                  out += ' validate.errors = [' + (__err) + ']; return false; ';
-                }
-              } else {
-                out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-              }
-              out += ' } ';
-            }
-            $errSchemaPath = $currErrSchemaPath;
-            if ($breakOnError) {
-              out += ' if (' + ($valid) + ') { ';
-              $closingBraces += '}';
-            }
-          }
-        }
-      }
-    }
-  }
-  if ($breakOnError) {
-    out += ' ' + ($closingBraces) + ' if (' + ($errs) + ' == errors) {';
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 495 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_propertyNames(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $errs = 'errs__' + $lvl;
-  var $it = it.util.copy(it);
-  var $closingBraces = '';
-  $it.level++;
-  var $nextValid = 'valid' + $it.level;
-  if (it.util.schemaHasRules($schema, it.RULES.all)) {
-    $it.schema = $schema;
-    $it.schemaPath = $schemaPath;
-    $it.errSchemaPath = $errSchemaPath;
-    var $key = 'key' + $lvl,
-      $idx = 'idx' + $lvl,
-      $i = 'i' + $lvl,
-      $invalidName = '\' + ' + $key + ' + \'',
-      $dataNxt = $it.dataLevel = it.dataLevel + 1,
-      $nextData = 'data' + $dataNxt,
-      $dataProperties = 'dataProperties' + $lvl,
-      $ownProperties = it.opts.ownProperties,
-      $currentBaseId = it.baseId;
-    out += ' var ' + ($errs) + ' = errors; ';
-    if ($ownProperties) {
-      out += ' var ' + ($dataProperties) + ' = undefined; ';
-    }
-    if ($ownProperties) {
-      out += ' ' + ($dataProperties) + ' = ' + ($dataProperties) + ' || Object.keys(' + ($data) + '); for (var ' + ($idx) + '=0; ' + ($idx) + '<' + ($dataProperties) + '.length; ' + ($idx) + '++) { var ' + ($key) + ' = ' + ($dataProperties) + '[' + ($idx) + ']; ';
-    } else {
-      out += ' for (var ' + ($key) + ' in ' + ($data) + ') { ';
-    }
-    out += ' var startErrs' + ($lvl) + ' = errors; ';
-    var $passData = $key;
-    var $wasComposite = it.compositeRule;
-    it.compositeRule = $it.compositeRule = true;
-    var $code = it.validate($it);
-    $it.baseId = $currentBaseId;
-    if (it.util.varOccurences($code, $nextData) < 2) {
-      out += ' ' + (it.util.varReplace($code, $nextData, $passData)) + ' ';
-    } else {
-      out += ' var ' + ($nextData) + ' = ' + ($passData) + '; ' + ($code) + ' ';
-    }
-    it.compositeRule = $it.compositeRule = $wasComposite;
-    out += ' if (!' + ($nextValid) + ') { for (var ' + ($i) + '=startErrs' + ($lvl) + '; ' + ($i) + '<errors; ' + ($i) + '++) { vErrors[' + ($i) + '].propertyName = ' + ($key) + '; }   var err =   '; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ('propertyNames') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { propertyName: \'' + ($invalidName) + '\' } ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'property name \\\'' + ($invalidName) + '\\\' is invalid\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError(vErrors); ';
-      } else {
-        out += ' validate.errors = vErrors; return false; ';
-      }
-    }
-    if ($breakOnError) {
-      out += ' break; ';
-    }
-    out += ' } }';
-  }
-  if ($breakOnError) {
-    out += ' ' + ($closingBraces) + ' if (' + ($errs) + ' == errors) {';
-  }
-  out = it.util.cleanUpCode(out);
-  return out;
-}
-
-
-/***/ }),
-/* 496 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_ref(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $async, $refCode;
-  if ($schema == '#' || $schema == '#/') {
-    if (it.isRoot) {
-      $async = it.async;
-      $refCode = 'validate';
-    } else {
-      $async = it.root.schema.$async === true;
-      $refCode = 'root.refVal[0]';
-    }
-  } else {
-    var $refVal = it.resolveRef(it.baseId, $schema, it.isRoot);
-    if ($refVal === undefined) {
-      var $message = it.MissingRefError.message(it.baseId, $schema);
-      if (it.opts.missingRefs == 'fail') {
-        it.logger.error($message);
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ('$ref') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { ref: \'' + (it.util.escapeQuotes($schema)) + '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'can\\\'t resolve reference ' + (it.util.escapeQuotes($schema)) + '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: ' + (it.util.toQuotedString($schema)) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-        if ($breakOnError) {
-          out += ' if (false) { ';
-        }
-      } else if (it.opts.missingRefs == 'ignore') {
-        it.logger.warn($message);
-        if ($breakOnError) {
-          out += ' if (true) { ';
-        }
-      } else {
-        throw new it.MissingRefError(it.baseId, $schema, $message);
-      }
-    } else if ($refVal.inline) {
-      var $it = it.util.copy(it);
-      $it.level++;
-      var $nextValid = 'valid' + $it.level;
-      $it.schema = $refVal.schema;
-      $it.schemaPath = '';
-      $it.errSchemaPath = $schema;
-      var $code = it.validate($it).replace(/validate\.schema/g, $refVal.code);
-      out += ' ' + ($code) + ' ';
-      if ($breakOnError) {
-        out += ' if (' + ($nextValid) + ') { ';
-      }
-    } else {
-      $async = $refVal.$async === true;
-      $refCode = $refVal.code;
-    }
-  }
-  if ($refCode) {
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = '';
-    if (it.opts.passContext) {
-      out += ' ' + ($refCode) + '.call(this, ';
-    } else {
-      out += ' ' + ($refCode) + '( ';
-    }
-    out += ' ' + ($data) + ', (dataPath || \'\')';
-    if (it.errorPath != '""') {
-      out += ' + ' + (it.errorPath);
-    }
-    var $parentData = $dataLvl ? 'data' + (($dataLvl - 1) || '') : 'parentData',
-      $parentDataProperty = $dataLvl ? it.dataPathArr[$dataLvl] : 'parentDataProperty';
-    out += ' , ' + ($parentData) + ' , ' + ($parentDataProperty) + ', rootData)  ';
-    var __callValidate = out;
-    out = $$outStack.pop();
-    if ($async) {
-      if (!it.async) throw new Error('async schema referenced by sync schema');
-      if ($breakOnError) {
-        out += ' var ' + ($valid) + '; ';
-      }
-      out += ' try { ' + (it.yieldAwait) + ' ' + (__callValidate) + '; ';
-      if ($breakOnError) {
-        out += ' ' + ($valid) + ' = true; ';
-      }
-      out += ' } catch (e) { if (!(e instanceof ValidationError)) throw e; if (vErrors === null) vErrors = e.errors; else vErrors = vErrors.concat(e.errors); errors = vErrors.length; ';
-      if ($breakOnError) {
-        out += ' ' + ($valid) + ' = false; ';
-      }
-      out += ' } ';
-      if ($breakOnError) {
-        out += ' if (' + ($valid) + ') { ';
-      }
-    } else {
-      out += ' if (!' + (__callValidate) + ') { if (vErrors === null) vErrors = ' + ($refCode) + '.errors; else vErrors = vErrors.concat(' + ($refCode) + '.errors); errors = vErrors.length; } ';
-      if ($breakOnError) {
-        out += ' else { ';
-      }
-    }
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 497 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_required(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  var $vSchema = 'schema' + $lvl;
-  if (!$isData) {
-    if ($schema.length < it.opts.loopRequired && it.schema.properties && Object.keys(it.schema.properties).length) {
-      var $required = [];
-      var arr1 = $schema;
-      if (arr1) {
-        var $property, i1 = -1,
-          l1 = arr1.length - 1;
-        while (i1 < l1) {
-          $property = arr1[i1 += 1];
-          var $propertySch = it.schema.properties[$property];
-          if (!($propertySch && it.util.schemaHasRules($propertySch, it.RULES.all))) {
-            $required[$required.length] = $property;
-          }
-        }
-      }
-    } else {
-      var $required = $schema;
-    }
-  }
-  if ($isData || $required.length) {
-    var $currentErrorPath = it.errorPath,
-      $loopRequired = $isData || $required.length >= it.opts.loopRequired,
-      $ownProperties = it.opts.ownProperties;
-    if ($breakOnError) {
-      out += ' var missing' + ($lvl) + '; ';
-      if ($loopRequired) {
-        if (!$isData) {
-          out += ' var ' + ($vSchema) + ' = validate.schema' + ($schemaPath) + '; ';
-        }
-        var $i = 'i' + $lvl,
-          $propertyPath = 'schema' + $lvl + '[' + $i + ']',
-          $missingProperty = '\' + ' + $propertyPath + ' + \'';
-        if (it.opts._errorDataPathProperty) {
-          it.errorPath = it.util.getPathExpr($currentErrorPath, $propertyPath, it.opts.jsonPointers);
-        }
-        out += ' var ' + ($valid) + ' = true; ';
-        if ($isData) {
-          out += ' if (schema' + ($lvl) + ' === undefined) ' + ($valid) + ' = true; else if (!Array.isArray(schema' + ($lvl) + ')) ' + ($valid) + ' = false; else {';
-        }
-        out += ' for (var ' + ($i) + ' = 0; ' + ($i) + ' < ' + ($vSchema) + '.length; ' + ($i) + '++) { ' + ($valid) + ' = ' + ($data) + '[' + ($vSchema) + '[' + ($i) + ']] !== undefined ';
-        if ($ownProperties) {
-          out += ' &&   Object.prototype.hasOwnProperty.call(' + ($data) + ', ' + ($vSchema) + '[' + ($i) + ']) ';
-        }
-        out += '; if (!' + ($valid) + ') break; } ';
-        if ($isData) {
-          out += '  }  ';
-        }
-        out += '  if (!' + ($valid) + ') {   ';
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'';
-            if (it.opts._errorDataPathProperty) {
-              out += 'is a required property';
-            } else {
-              out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-            }
-            out += '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-        out += ' } else { ';
-      } else {
-        out += ' if ( ';
-        var arr2 = $required;
-        if (arr2) {
-          var $propertyKey, $i = -1,
-            l2 = arr2.length - 1;
-          while ($i < l2) {
-            $propertyKey = arr2[$i += 1];
-            if ($i) {
-              out += ' || ';
-            }
-            var $prop = it.util.getProperty($propertyKey),
-              $useData = $data + $prop;
-            out += ' ( ( ' + ($useData) + ' === undefined ';
-            if ($ownProperties) {
-              out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-            }
-            out += ') && (missing' + ($lvl) + ' = ' + (it.util.toQuotedString(it.opts.jsonPointers ? $propertyKey : $prop)) + ') ) ';
-          }
-        }
-        out += ') {  ';
-        var $propertyPath = 'missing' + $lvl,
-          $missingProperty = '\' + ' + $propertyPath + ' + \'';
-        if (it.opts._errorDataPathProperty) {
-          it.errorPath = it.opts.jsonPointers ? it.util.getPathExpr($currentErrorPath, $propertyPath, true) : $currentErrorPath + ' + ' + $propertyPath;
-        }
-        var $$outStack = $$outStack || [];
-        $$outStack.push(out);
-        out = ''; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'';
-            if (it.opts._errorDataPathProperty) {
-              out += 'is a required property';
-            } else {
-              out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-            }
-            out += '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        var __err = out;
-        out = $$outStack.pop();
-        if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-          if (it.async) {
-            out += ' throw new ValidationError([' + (__err) + ']); ';
-          } else {
-            out += ' validate.errors = [' + (__err) + ']; return false; ';
-          }
-        } else {
-          out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-        }
-        out += ' } else { ';
-      }
-    } else {
-      if ($loopRequired) {
-        if (!$isData) {
-          out += ' var ' + ($vSchema) + ' = validate.schema' + ($schemaPath) + '; ';
-        }
-        var $i = 'i' + $lvl,
-          $propertyPath = 'schema' + $lvl + '[' + $i + ']',
-          $missingProperty = '\' + ' + $propertyPath + ' + \'';
-        if (it.opts._errorDataPathProperty) {
-          it.errorPath = it.util.getPathExpr($currentErrorPath, $propertyPath, it.opts.jsonPointers);
-        }
-        if ($isData) {
-          out += ' if (' + ($vSchema) + ' && !Array.isArray(' + ($vSchema) + ')) {  var err =   '; /* istanbul ignore else */
-          if (it.createErrors !== false) {
-            out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-            if (it.opts.messages !== false) {
-              out += ' , message: \'';
-              if (it.opts._errorDataPathProperty) {
-                out += 'is a required property';
-              } else {
-                out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-              }
-              out += '\' ';
-            }
-            if (it.opts.verbose) {
-              out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-            }
-            out += ' } ';
-          } else {
-            out += ' {} ';
-          }
-          out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; } else if (' + ($vSchema) + ' !== undefined) { ';
-        }
-        out += ' for (var ' + ($i) + ' = 0; ' + ($i) + ' < ' + ($vSchema) + '.length; ' + ($i) + '++) { if (' + ($data) + '[' + ($vSchema) + '[' + ($i) + ']] === undefined ';
-        if ($ownProperties) {
-          out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', ' + ($vSchema) + '[' + ($i) + ']) ';
-        }
-        out += ') {  var err =   '; /* istanbul ignore else */
-        if (it.createErrors !== false) {
-          out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-          if (it.opts.messages !== false) {
-            out += ' , message: \'';
-            if (it.opts._errorDataPathProperty) {
-              out += 'is a required property';
-            } else {
-              out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-            }
-            out += '\' ';
-          }
-          if (it.opts.verbose) {
-            out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-          }
-          out += ' } ';
-        } else {
-          out += ' {} ';
-        }
-        out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; } } ';
-        if ($isData) {
-          out += '  }  ';
-        }
-      } else {
-        var arr3 = $required;
-        if (arr3) {
-          var $propertyKey, i3 = -1,
-            l3 = arr3.length - 1;
-          while (i3 < l3) {
-            $propertyKey = arr3[i3 += 1];
-            var $prop = it.util.getProperty($propertyKey),
-              $missingProperty = it.util.escapeQuotes($propertyKey),
-              $useData = $data + $prop;
-            if (it.opts._errorDataPathProperty) {
-              it.errorPath = it.util.getPath($currentErrorPath, $propertyKey, it.opts.jsonPointers);
-            }
-            out += ' if ( ' + ($useData) + ' === undefined ';
-            if ($ownProperties) {
-              out += ' || ! Object.prototype.hasOwnProperty.call(' + ($data) + ', \'' + (it.util.escapeQuotes($propertyKey)) + '\') ';
-            }
-            out += ') {  var err =   '; /* istanbul ignore else */
-            if (it.createErrors !== false) {
-              out += ' { keyword: \'' + ('required') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { missingProperty: \'' + ($missingProperty) + '\' } ';
-              if (it.opts.messages !== false) {
-                out += ' , message: \'';
-                if (it.opts._errorDataPathProperty) {
-                  out += 'is a required property';
-                } else {
-                  out += 'should have required property \\\'' + ($missingProperty) + '\\\'';
-                }
-                out += '\' ';
-              }
-              if (it.opts.verbose) {
-                out += ' , schema: validate.schema' + ($schemaPath) + ' , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-              }
-              out += ' } ';
-            } else {
-              out += ' {} ';
-            }
-            out += ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; } ';
-          }
-        }
-      }
-    }
-    it.errorPath = $currentErrorPath;
-  } else if ($breakOnError) {
-    out += ' if (true) {';
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 498 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function generate_uniqueItems(it, $keyword, $ruleType) {
-  var out = ' ';
-  var $lvl = it.level;
-  var $dataLvl = it.dataLevel;
-  var $schema = it.schema[$keyword];
-  var $schemaPath = it.schemaPath + it.util.getProperty($keyword);
-  var $errSchemaPath = it.errSchemaPath + '/' + $keyword;
-  var $breakOnError = !it.opts.allErrors;
-  var $data = 'data' + ($dataLvl || '');
-  var $valid = 'valid' + $lvl;
-  var $isData = it.opts.$data && $schema && $schema.$data,
-    $schemaValue;
-  if ($isData) {
-    out += ' var schema' + ($lvl) + ' = ' + (it.util.getData($schema.$data, $dataLvl, it.dataPathArr)) + '; ';
-    $schemaValue = 'schema' + $lvl;
-  } else {
-    $schemaValue = $schema;
-  }
-  if (($schema || $isData) && it.opts.uniqueItems !== false) {
-    if ($isData) {
-      out += ' var ' + ($valid) + '; if (' + ($schemaValue) + ' === false || ' + ($schemaValue) + ' === undefined) ' + ($valid) + ' = true; else if (typeof ' + ($schemaValue) + ' != \'boolean\') ' + ($valid) + ' = false; else { ';
-    }
-    out += ' var ' + ($valid) + ' = true; if (' + ($data) + '.length > 1) { var i = ' + ($data) + '.length, j; outer: for (;i--;) { for (j = i; j--;) { if (equal(' + ($data) + '[i], ' + ($data) + '[j])) { ' + ($valid) + ' = false; break outer; } } } } ';
-    if ($isData) {
-      out += '  }  ';
-    }
-    out += ' if (!' + ($valid) + ') {   ';
-    var $$outStack = $$outStack || [];
-    $$outStack.push(out);
-    out = ''; /* istanbul ignore else */
-    if (it.createErrors !== false) {
-      out += ' { keyword: \'' + ('uniqueItems') + '\' , dataPath: (dataPath || \'\') + ' + (it.errorPath) + ' , schemaPath: ' + (it.util.toQuotedString($errSchemaPath)) + ' , params: { i: i, j: j } ';
-      if (it.opts.messages !== false) {
-        out += ' , message: \'should NOT have duplicate items (items ## \' + j + \' and \' + i + \' are identical)\' ';
-      }
-      if (it.opts.verbose) {
-        out += ' , schema:  ';
-        if ($isData) {
-          out += 'validate.schema' + ($schemaPath);
-        } else {
-          out += '' + ($schema);
-        }
-        out += '         , parentSchema: validate.schema' + (it.schemaPath) + ' , data: ' + ($data) + ' ';
-      }
-      out += ' } ';
-    } else {
-      out += ' {} ';
-    }
-    var __err = out;
-    out = $$outStack.pop();
-    if (!it.compositeRule && $breakOnError) { /* istanbul ignore if */
-      if (it.async) {
-        out += ' throw new ValidationError([' + (__err) + ']); ';
-      } else {
-        out += ' validate.errors = [' + (__err) + ']; return false; ';
-      }
-    } else {
-      out += ' var err = ' + (__err) + ';  if (vErrors === null) vErrors = [err]; else vErrors.push(err); errors++; ';
-    }
-    out += ' } ';
-    if ($breakOnError) {
-      out += ' else { ';
-    }
-  } else {
-    if ($breakOnError) {
-      out += ' if (true) { ';
-    }
-  }
-  return out;
-}
-
-
-/***/ }),
-/* 499 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var IDENTIFIER = /^[a-z_$][a-z0-9_$-]*$/i;
-var customRuleCode = __webpack_require__(485);
-
-module.exports = {
-  add: addKeyword,
-  get: getKeyword,
-  remove: removeKeyword
-};
-
-/**
- * Define custom keyword
- * @this  Ajv
- * @param {String} keyword custom keyword, should be unique (including different from all standard, custom and macro keywords).
- * @param {Object} definition keyword definition object with properties `type` (type(s) which the keyword applies to), `validate` or `compile`.
- * @return {Ajv} this for method chaining
- */
-function addKeyword(keyword, definition) {
-  /* jshint validthis: true */
-  /* eslint no-shadow: 0 */
-  var RULES = this.RULES;
-
-  if (RULES.keywords[keyword])
-    throw new Error('Keyword ' + keyword + ' is already defined');
-
-  if (!IDENTIFIER.test(keyword))
-    throw new Error('Keyword ' + keyword + ' is not a valid identifier');
-
-  if (definition) {
-    if (definition.macro && definition.valid !== undefined)
-      throw new Error('"valid" option cannot be used with macro keywords');
-
-    var dataType = definition.type;
-    if (Array.isArray(dataType)) {
-      var i, len = dataType.length;
-      for (i=0; i<len; i++) checkDataType(dataType[i]);
-      for (i=0; i<len; i++) _addRule(keyword, dataType[i], definition);
-    } else {
-      if (dataType) checkDataType(dataType);
-      _addRule(keyword, dataType, definition);
-    }
-
-    var $data = definition.$data === true && this._opts.$data;
-    if ($data && !definition.validate)
-      throw new Error('$data support: "validate" function is not defined');
-
-    var metaSchema = definition.metaSchema;
-    if (metaSchema) {
-      if ($data) {
-        metaSchema = {
-          anyOf: [
-            metaSchema,
-            { '$ref': 'https://raw.githubusercontent.com/epoberezkin/ajv/master/lib/refs/$data.json#' }
-          ]
-        };
-      }
-      definition.validateSchema = this.compile(metaSchema, true);
-    }
-  }
-
-  RULES.keywords[keyword] = RULES.all[keyword] = true;
-
-
-  function _addRule(keyword, dataType, definition) {
-    var ruleGroup;
-    for (var i=0; i<RULES.length; i++) {
-      var rg = RULES[i];
-      if (rg.type == dataType) {
-        ruleGroup = rg;
-        break;
-      }
-    }
-
-    if (!ruleGroup) {
-      ruleGroup = { type: dataType, rules: [] };
-      RULES.push(ruleGroup);
-    }
-
-    var rule = {
-      keyword: keyword,
-      definition: definition,
-      custom: true,
-      code: customRuleCode,
-      implements: definition.implements
-    };
-    ruleGroup.rules.push(rule);
-    RULES.custom[keyword] = rule;
-  }
-
-
-  function checkDataType(dataType) {
-    if (!RULES.types[dataType]) throw new Error('Unknown type ' + dataType);
-  }
-
-  return this;
-}
-
-
-/**
- * Get keyword
- * @this  Ajv
- * @param {String} keyword pre-defined or custom keyword.
- * @return {Object|Boolean} custom keyword definition, `true` if it is a predefined keyword, `false` otherwise.
- */
-function getKeyword(keyword) {
-  /* jshint validthis: true */
-  var rule = this.RULES.custom[keyword];
-  return rule ? rule.definition : this.RULES.keywords[keyword] || false;
-}
-
-
-/**
- * Remove keyword
- * @this  Ajv
- * @param {String} keyword pre-defined or custom keyword.
- * @return {Ajv} this for method chaining
- */
-function removeKeyword(keyword) {
-  /* jshint validthis: true */
-  var RULES = this.RULES;
-  delete RULES.keywords[keyword];
-  delete RULES.all[keyword];
-  delete RULES.custom[keyword];
-  for (var i=0; i<RULES.length; i++) {
-    var rules = RULES[i].rules;
-    for (var j=0; j<rules.length; j++) {
-      if (rules[j].keyword == keyword) {
-        rules.splice(j, 1);
-        break;
-      }
-    }
-  }
-  return this;
-}
-
-
-/***/ }),
-/* 500 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var META_SCHEMA_ID = 'http://json-schema.org/draft-06/schema';
-
-module.exports = function (ajv) {
-  var defaultMeta = ajv._opts.defaultMeta;
-  var metaSchemaRef = typeof defaultMeta == 'string'
-                      ? { $ref: defaultMeta }
-                      : ajv.getSchema(META_SCHEMA_ID)
-                        ? { $ref: META_SCHEMA_ID }
-                        : {};
-
-  ajv.addKeyword('patternGroups', {
-    // implemented in properties.jst
-    metaSchema: {
-      type: 'object',
-      additionalProperties: {
-        type: 'object',
-        required: [ 'schema' ],
-        properties: {
-          maximum: {
-            type: 'integer',
-            minimum: 0
-          },
-          minimum: {
-            type: 'integer',
-            minimum: 0
-          },
-          schema: metaSchemaRef
-        },
-        additionalProperties: false
-      }
-    }
-  });
-  ajv.RULES.all.properties.implements.push('patternGroups');
-};
-
-
-/***/ }),
-/* 501 */
-/***/ (function(module, exports) {
-
-module.exports = {"$schema":"http://json-schema.org/draft-06/schema#","$id":"https://raw.githubusercontent.com/epoberezkin/ajv/master/lib/refs/$data.json#","description":"Meta-schema for $data reference (JSON-schema extension proposal)","type":"object","required":["$data"],"properties":{"$data":{"type":"string","anyOf":[{"format":"relative-json-pointer"},{"format":"json-pointer"}]}},"additionalProperties":false}
-
-/***/ }),
-/* 502 */
-/***/ (function(module, exports) {
-
-module.exports = {"$schema":"http://json-schema.org/draft-06/schema#","$id":"http://json-schema.org/draft-06/schema#","title":"Core schema meta-schema","definitions":{"schemaArray":{"type":"array","minItems":1,"items":{"$ref":"#"}},"nonNegativeInteger":{"type":"integer","minimum":0},"nonNegativeIntegerDefault0":{"allOf":[{"$ref":"#/definitions/nonNegativeInteger"},{"default":0}]},"simpleTypes":{"enum":["array","boolean","integer","null","number","object","string"]},"stringArray":{"type":"array","items":{"type":"string"},"uniqueItems":true,"default":[]}},"type":["object","boolean"],"properties":{"$id":{"type":"string","format":"uri-reference"},"$schema":{"type":"string","format":"uri"},"$ref":{"type":"string","format":"uri-reference"},"title":{"type":"string"},"description":{"type":"string"},"default":{},"examples":{"type":"array","items":{}},"multipleOf":{"type":"number","exclusiveMinimum":0},"maximum":{"type":"number"},"exclusiveMaximum":{"type":"number"},"minimum":{"type":"number"},"exclusiveMinimum":{"type":"number"},"maxLength":{"$ref":"#/definitions/nonNegativeInteger"},"minLength":{"$ref":"#/definitions/nonNegativeIntegerDefault0"},"pattern":{"type":"string","format":"regex"},"additionalItems":{"$ref":"#"},"items":{"anyOf":[{"$ref":"#"},{"$ref":"#/definitions/schemaArray"}],"default":{}},"maxItems":{"$ref":"#/definitions/nonNegativeInteger"},"minItems":{"$ref":"#/definitions/nonNegativeIntegerDefault0"},"uniqueItems":{"type":"boolean","default":false},"contains":{"$ref":"#"},"maxProperties":{"$ref":"#/definitions/nonNegativeInteger"},"minProperties":{"$ref":"#/definitions/nonNegativeIntegerDefault0"},"required":{"$ref":"#/definitions/stringArray"},"additionalProperties":{"$ref":"#"},"definitions":{"type":"object","additionalProperties":{"$ref":"#"},"default":{}},"properties":{"type":"object","additionalProperties":{"$ref":"#"},"default":{}},"patternProperties":{"type":"object","additionalProperties":{"$ref":"#"},"default":{}},"dependencies":{"type":"object","additionalProperties":{"anyOf":[{"$ref":"#"},{"$ref":"#/definitions/stringArray"}]}},"propertyNames":{"$ref":"#"},"const":{},"enum":{"type":"array","minItems":1,"uniqueItems":true},"type":{"anyOf":[{"$ref":"#/definitions/simpleTypes"},{"type":"array","items":{"$ref":"#/definitions/simpleTypes"},"minItems":1,"uniqueItems":true}]},"format":{"type":"string"},"allOf":{"$ref":"#/definitions/schemaArray"},"anyOf":{"$ref":"#/definitions/schemaArray"},"oneOf":{"$ref":"#/definitions/schemaArray"},"not":{"$ref":"#"}},"default":{}}
-
-/***/ }),
-/* 503 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var traverse = module.exports = function (schema, opts, cb) {
-  if (typeof opts == 'function') {
-    cb = opts;
-    opts = {};
-  }
-  _traverse(opts, cb, schema, '', schema);
-};
-
-
-traverse.keywords = {
-  additionalItems: true,
-  items: true,
-  contains: true,
-  additionalProperties: true,
-  propertyNames: true,
-  not: true
-};
-
-traverse.arrayKeywords = {
-  items: true,
-  allOf: true,
-  anyOf: true,
-  oneOf: true
-};
-
-traverse.propsKeywords = {
-  definitions: true,
-  properties: true,
-  patternProperties: true,
-  dependencies: true
-};
-
-traverse.skipKeywords = {
-  enum: true,
-  const: true,
-  required: true,
-  maximum: true,
-  minimum: true,
-  exclusiveMaximum: true,
-  exclusiveMinimum: true,
-  multipleOf: true,
-  maxLength: true,
-  minLength: true,
-  pattern: true,
-  format: true,
-  maxItems: true,
-  minItems: true,
-  uniqueItems: true,
-  maxProperties: true,
-  minProperties: true
-};
-
-
-function _traverse(opts, cb, schema, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex) {
-  if (schema && typeof schema == 'object' && !Array.isArray(schema)) {
-    cb(schema, jsonPtr, rootSchema, parentJsonPtr, parentKeyword, parentSchema, keyIndex);
-    for (var key in schema) {
-      var sch = schema[key];
-      if (Array.isArray(sch)) {
-        if (key in traverse.arrayKeywords) {
-          for (var i=0; i<sch.length; i++)
-            _traverse(opts, cb, sch[i], jsonPtr + '/' + key + '/' + i, rootSchema, jsonPtr, key, schema, i);
-        }
-      } else if (key in traverse.propsKeywords) {
-        if (sch && typeof sch == 'object') {
-          for (var prop in sch)
-            _traverse(opts, cb, sch[prop], jsonPtr + '/' + key + '/' + escapeJsonPtr(prop), rootSchema, jsonPtr, key, schema, prop);
-        }
-      } else if (key in traverse.keywords || (opts.allKeys && !(key in traverse.skipKeywords))) {
-        _traverse(opts, cb, sch, jsonPtr + '/' + key, rootSchema, jsonPtr, key, schema);
-      }
-    }
-  }
-}
-
-
-function escapeJsonPtr(str) {
-  return str.replace(/~/g, '~0').replace(/\//g, '~1');
-}
-
-
-/***/ }),
-/* 504 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const x = module.exports;
-const ESC = '\u001B[';
-const OSC = '\u001B]';
-const BEL = '\u0007';
-const SEP = ';';
-const isTerminalApp = process.env.TERM_PROGRAM === 'Apple_Terminal';
-
-x.cursorTo = (x, y) => {
-	if (typeof x !== 'number') {
-		throw new TypeError('The `x` argument is required');
-	}
-
-	if (typeof y !== 'number') {
-		return ESC + (x + 1) + 'G';
-	}
-
-	return ESC + (y + 1) + ';' + (x + 1) + 'H';
-};
-
-x.cursorMove = (x, y) => {
-	if (typeof x !== 'number') {
-		throw new TypeError('The `x` argument is required');
-	}
-
-	let ret = '';
-
-	if (x < 0) {
-		ret += ESC + (-x) + 'D';
-	} else if (x > 0) {
-		ret += ESC + x + 'C';
-	}
-
-	if (y < 0) {
-		ret += ESC + (-y) + 'A';
-	} else if (y > 0) {
-		ret += ESC + y + 'B';
-	}
-
-	return ret;
-};
-
-x.cursorUp = count => ESC + (typeof count === 'number' ? count : 1) + 'A';
-x.cursorDown = count => ESC + (typeof count === 'number' ? count : 1) + 'B';
-x.cursorForward = count => ESC + (typeof count === 'number' ? count : 1) + 'C';
-x.cursorBackward = count => ESC + (typeof count === 'number' ? count : 1) + 'D';
-
-x.cursorLeft = ESC + 'G';
-x.cursorSavePosition = ESC + (isTerminalApp ? '7' : 's');
-x.cursorRestorePosition = ESC + (isTerminalApp ? '8' : 'u');
-x.cursorGetPosition = ESC + '6n';
-x.cursorNextLine = ESC + 'E';
-x.cursorPrevLine = ESC + 'F';
-x.cursorHide = ESC + '?25l';
-x.cursorShow = ESC + '?25h';
-
-x.eraseLines = count => {
-	let clear = '';
-
-	for (let i = 0; i < count; i++) {
-		clear += x.eraseLine + (i < count - 1 ? x.cursorUp() : '');
-	}
-
-	if (count) {
-		clear += x.cursorLeft;
-	}
-
-	return clear;
-};
-
-x.eraseEndLine = ESC + 'K';
-x.eraseStartLine = ESC + '1K';
-x.eraseLine = ESC + '2K';
-x.eraseDown = ESC + 'J';
-x.eraseUp = ESC + '1J';
-x.eraseScreen = ESC + '2J';
-x.scrollUp = ESC + 'S';
-x.scrollDown = ESC + 'T';
-
-x.clearScreen = '\u001Bc';
-x.beep = BEL;
-
-x.link = (text, url) => {
-	return [
-		OSC,
-		'8',
-		SEP,
-		SEP,
-		url,
-		BEL,
-		text,
-		OSC,
-		'8',
-		SEP,
-		SEP,
-		BEL
-	].join('');
-};
-
-x.image = (buf, opts) => {
-	opts = opts || {};
-
-	let ret = OSC + '1337;File=inline=1';
-
-	if (opts.width) {
-		ret += `;width=${opts.width}`;
-	}
-
-	if (opts.height) {
-		ret += `;height=${opts.height}`;
-	}
-
-	if (opts.preserveAspectRatio === false) {
-		ret += ';preserveAspectRatio=0';
-	}
-
-	return ret + ':' + buf.toString('base64') + BEL;
-};
-
-x.iTerm = {};
-
-x.iTerm.setCwd = cwd => OSC + '50;CurrentDir=' + (cwd || process.cwd()) + BEL;
-
-
-/***/ }),
-/* 505 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function () {
-	return /[\u001b\u009b][[()#;?]*(?:[0-9]{1,4}(?:;[0-9]{0,4})*)?[0-9A-PRZcf-nqry=><]/g;
-};
-
-
-/***/ }),
-/* 506 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/* WEBPACK VAR INJECTION */(function(module) {
-const colorConvert = __webpack_require__(608);
-
-const wrapAnsi16 = (fn, offset) => function () {
-	const code = fn.apply(colorConvert, arguments);
-	return `\u001B[${code + offset}m`;
-};
-
-const wrapAnsi256 = (fn, offset) => function () {
-	const code = fn.apply(colorConvert, arguments);
-	return `\u001B[${38 + offset};5;${code}m`;
-};
-
-const wrapAnsi16m = (fn, offset) => function () {
-	const rgb = fn.apply(colorConvert, arguments);
-	return `\u001B[${38 + offset};2;${rgb[0]};${rgb[1]};${rgb[2]}m`;
-};
-
-function assembleStyles() {
-	const codes = new Map();
-	const styles = {
-		modifier: {
-			reset: [0, 0],
-			// 21 isn't widely supported and 22 does the same thing
-			bold: [1, 22],
-			dim: [2, 22],
-			italic: [3, 23],
-			underline: [4, 24],
-			inverse: [7, 27],
-			hidden: [8, 28],
-			strikethrough: [9, 29]
-		},
-		color: {
-			black: [30, 39],
-			red: [31, 39],
-			green: [32, 39],
-			yellow: [33, 39],
-			blue: [34, 39],
-			magenta: [35, 39],
-			cyan: [36, 39],
-			white: [37, 39],
-			gray: [90, 39],
-
-			// Bright color
-			redBright: [91, 39],
-			greenBright: [92, 39],
-			yellowBright: [93, 39],
-			blueBright: [94, 39],
-			magentaBright: [95, 39],
-			cyanBright: [96, 39],
-			whiteBright: [97, 39]
-		},
-		bgColor: {
-			bgBlack: [40, 49],
-			bgRed: [41, 49],
-			bgGreen: [42, 49],
-			bgYellow: [43, 49],
-			bgBlue: [44, 49],
-			bgMagenta: [45, 49],
-			bgCyan: [46, 49],
-			bgWhite: [47, 49],
-
-			// Bright color
-			bgBlackBright: [100, 49],
-			bgRedBright: [101, 49],
-			bgGreenBright: [102, 49],
-			bgYellowBright: [103, 49],
-			bgBlueBright: [104, 49],
-			bgMagentaBright: [105, 49],
-			bgCyanBright: [106, 49],
-			bgWhiteBright: [107, 49]
-		}
-	};
-
-	// Fix humans
-	styles.color.grey = styles.color.gray;
-
-	for (const groupName of Object.keys(styles)) {
-		const group = styles[groupName];
-
-		for (const styleName of Object.keys(group)) {
-			const style = group[styleName];
-
-			styles[styleName] = {
-				open: `\u001B[${style[0]}m`,
-				close: `\u001B[${style[1]}m`
-			};
-
-			group[styleName] = styles[styleName];
-
-			codes.set(style[0], style[1]);
-		}
-
-		Object.defineProperty(styles, groupName, {
-			value: group,
-			enumerable: false
-		});
-
-		Object.defineProperty(styles, 'codes', {
-			value: codes,
-			enumerable: false
-		});
-	}
-
-	const ansi2ansi = n => n;
-	const rgb2rgb = (r, g, b) => [r, g, b];
-
-	styles.color.close = '\u001B[39m';
-	styles.bgColor.close = '\u001B[49m';
-
-	styles.color.ansi = {
-		ansi: wrapAnsi16(ansi2ansi, 0)
-	};
-	styles.color.ansi256 = {
-		ansi256: wrapAnsi256(ansi2ansi, 0)
-	};
-	styles.color.ansi16m = {
-		rgb: wrapAnsi16m(rgb2rgb, 0)
-	};
-
-	styles.bgColor.ansi = {
-		ansi: wrapAnsi16(ansi2ansi, 10)
-	};
-	styles.bgColor.ansi256 = {
-		ansi256: wrapAnsi256(ansi2ansi, 10)
-	};
-	styles.bgColor.ansi16m = {
-		rgb: wrapAnsi16m(rgb2rgb, 10)
-	};
-
-	for (let key of Object.keys(colorConvert)) {
-		if (typeof colorConvert[key] !== 'object') {
-			continue;
-		}
-
-		const suite = colorConvert[key];
-
-		if (key === 'ansi16') {
-			key = 'ansi';
-		}
-
-		if ('ansi16' in suite) {
-			styles.color.ansi[key] = wrapAnsi16(suite.ansi16, 0);
-			styles.bgColor.ansi[key] = wrapAnsi16(suite.ansi16, 10);
-		}
-
-		if ('ansi256' in suite) {
-			styles.color.ansi256[key] = wrapAnsi256(suite.ansi256, 0);
-			styles.bgColor.ansi256[key] = wrapAnsi256(suite.ansi256, 10);
-		}
-
-		if ('rgb' in suite) {
-			styles.color.ansi16m[key] = wrapAnsi16m(suite.rgb, 0);
-			styles.bgColor.ansi16m[key] = wrapAnsi16m(suite.rgb, 10);
-		}
-	}
-
-	return styles;
-}
-
-// Make the export immutable
-Object.defineProperty(module, 'exports', {
-	enumerable: true,
-	get: assembleStyles
-});
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(163)(module)))
-
-/***/ }),
-/* 507 */
-/***/ (function(module, exports) {
-
-function webpackEmptyContext(req) {
-	throw new Error("Cannot find module '" + req + "'.");
-}
-webpackEmptyContext.keys = function() { return []; };
-webpackEmptyContext.resolve = webpackEmptyContext;
-module.exports = webpackEmptyContext;
-webpackEmptyContext.id = 507;
-
-/***/ }),
-/* 508 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-    // global key for user preferred registration
-var REGISTRATION_KEY = '@@any-promise/REGISTRATION',
-    // Prior registration (preferred or detected)
-    registered = null
-
-/**
- * Registers the given implementation.  An implementation must
- * be registered prior to any call to `require("any-promise")`,
- * typically on application load.
- *
- * If called with no arguments, will return registration in
- * following priority:
- *
- * For Node.js:
- *
- * 1. Previous registration
- * 2. global.Promise if node.js version >= 0.12
- * 3. Auto detected promise based on first sucessful require of
- *    known promise libraries. Note this is a last resort, as the
- *    loaded library is non-deterministic. node.js >= 0.12 will
- *    always use global.Promise over this priority list.
- * 4. Throws error.
- *
- * For Browser:
- *
- * 1. Previous registration
- * 2. window.Promise
- * 3. Throws error.
- *
- * Options:
- *
- * Promise: Desired Promise constructor
- * global: Boolean - Should the registration be cached in a global variable to
- * allow cross dependency/bundle registration?  (default true)
- */
-module.exports = function(root, loadImplementation){
-  return function register(implementation, opts){
-    implementation = implementation || null
-    opts = opts || {}
-    // global registration unless explicitly  {global: false} in options (default true)
-    var registerGlobal = opts.global !== false;
-
-    // load any previous global registration
-    if(registered === null && registerGlobal){
-      registered = root[REGISTRATION_KEY] || null
-    }
-
-    if(registered !== null
-        && implementation !== null
-        && registered.implementation !== implementation){
-      // Throw error if attempting to redefine implementation
-      throw new Error('any-promise already defined as "'+registered.implementation+
-        '".  You can only register an implementation before the first '+
-        ' call to require("any-promise") and an implementation cannot be changed')
-    }
-
-    if(registered === null){
-      // use provided implementation
-      if(implementation !== null && typeof opts.Promise !== 'undefined'){
-        registered = {
-          Promise: opts.Promise,
-          implementation: implementation
-        }
-      } else {
-        // require implementation if implementation is specified but not provided
-        registered = loadImplementation(implementation)
-      }
-
-      if(registerGlobal){
-        // register preference globally in case multiple installations
-        root[REGISTRATION_KEY] = registered
-      }
-    }
-
-    return registered
-  }
-}
-
-
-/***/ }),
-/* 509 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = __webpack_require__(508)(global, loadImplementation);
-
-/**
- * Node.js version of loadImplementation.
- *
- * Requires the given implementation and returns the registration
- * containing {Promise, implementation}
- *
- * If implementation is undefined or global.Promise, loads it
- * Otherwise uses require
- */
-function loadImplementation(implementation){
-  var impl = null
-
-  if(shouldPreferGlobalPromise(implementation)){
-    // if no implementation or env specified use global.Promise
-    impl = {
-      Promise: global.Promise,
-      implementation: 'global.Promise'
-    }
-  } else if(implementation){
-    // if implementation specified, require it
-    var lib = !(function webpackMissingModule() { var e = new Error("Cannot find module \".\""); e.code = 'MODULE_NOT_FOUND'; throw e; }())
-    impl = {
-      Promise: lib.Promise || lib,
-      implementation: implementation
-    }
-  } else {
-    // try to auto detect implementation. This is non-deterministic
-    // and should prefer other branches, but this is our last chance
-    // to load something without throwing error
-    impl = tryAutoDetect()
-  }
-
-  if(impl === null){
-    throw new Error('Cannot find any-promise implementation nor'+
-      ' global.Promise. You must install polyfill or call'+
-      ' require("any-promise/register") with your preferred'+
-      ' implementation, e.g. require("any-promise/register/bluebird")'+
-      ' on application load prior to any require("any-promise").')
-  }
-
-  return impl
-}
-
-/**
- * Determines if the global.Promise should be preferred if an implementation
- * has not been registered.
- */
-function shouldPreferGlobalPromise(implementation){
-  if(implementation){
-    return implementation === 'global.Promise'
-  } else if(typeof global.Promise !== 'undefined'){
-    // Load global promise if implementation not specified
-    // Versions < 0.11 did not have global Promise
-    // Do not use for version < 0.12 as version 0.11 contained buggy versions
-    var version = (/v(\d+)\.(\d+)\.(\d+)/).exec(process.version)
-    return !(version && +version[1] == 0 && +version[2] < 12)
-  }
-
-  // do not have global.Promise or another implementation was specified
-  return false
-}
-
-/**
- * Look for common libs as last resort there is no guarantee that
- * this will return a desired implementation or even be deterministic.
- * The priority is also nearly arbitrary. We are only doing this
- * for older versions of Node.js <0.12 that do not have a reasonable
- * global.Promise implementation and we the user has not registered
- * the preference. This preserves the behavior of any-promise <= 0.1
- * and may be deprecated or removed in the future
- */
-function tryAutoDetect(){
-  var libs = [
-      "es6-promise",
-      "promise",
-      "native-promise-only",
-      "bluebird",
-      "rsvp",
-      "when",
-      "q",
-      "pinkie",
-      "lie",
-      "vow"]
-  var i = 0, len = libs.length
-  for(; i < len; i++){
-    try {
-      return loadImplementation(libs[i])
-    } catch(e){}
-  }
-  return null
-}
-
-
-/***/ }),
-/* 510 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * arr-flatten <https://github.com/jonschlinkert/arr-flatten>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-module.exports = function (arr) {
-  return flat(arr, []);
-};
-
-function flat(arr, res) {
-  var i = 0, cur;
-  var len = arr.length;
-  for (; i < len; i++) {
-    cur = arr[i];
-    Array.isArray(cur) ? flat(cur, res) : res.push(cur);
-  }
-  return res;
-}
-
-
-/***/ }),
-/* 511 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function (arr, predicate, ctx) {
-	if (typeof Array.prototype.findIndex === 'function') {
-		return arr.findIndex(predicate, ctx);
-	}
-
-	if (typeof predicate !== 'function') {
-		throw new TypeError('predicate must be a function');
-	}
-
-	var list = Object(arr);
-	var len = list.length;
-
-	if (len === 0) {
-		return -1;
-	}
-
-	for (var i = 0; i < len; i++) {
-		if (predicate.call(ctx, list[i], i, list)) {
-			return i;
-		}
-	}
-
-	return -1;
-};
-
-
-/***/ }),
-/* 512 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var rawAsap = __webpack_require__(513);
-var freeTasks = [];
-
-/**
- * Calls a task as soon as possible after returning, in its own event, with
- * priority over IO events. An exception thrown in a task can be handled by
- * `process.on("uncaughtException") or `domain.on("error")`, but will otherwise
- * crash the process. If the error is handled, all subsequent tasks will
- * resume.
- *
- * @param {{call}} task A callable object, typically a function that takes no
- * arguments.
- */
-module.exports = asap;
-function asap(task) {
-    var rawTask;
-    if (freeTasks.length) {
-        rawTask = freeTasks.pop();
-    } else {
-        rawTask = new RawTask();
-    }
-    rawTask.task = task;
-    rawTask.domain = process.domain;
-    rawAsap(rawTask);
-}
-
-function RawTask() {
-    this.task = null;
-    this.domain = null;
-}
-
-RawTask.prototype.call = function () {
-    if (this.domain) {
-        this.domain.enter();
-    }
-    var threw = true;
-    try {
-        this.task.call();
-        threw = false;
-        // If the task throws an exception (presumably) Node.js restores the
-        // domain stack for the next event.
-        if (this.domain) {
-            this.domain.exit();
-        }
-    } finally {
-        // We use try/finally and a threw flag to avoid messing up stack traces
-        // when we catch and release errors.
-        if (threw) {
-            // In Node.js, uncaught exceptions are considered fatal errors.
-            // Re-throw them to interrupt flushing!
-            // Ensure that flushing continues if an uncaught exception is
-            // suppressed listening process.on("uncaughtException") or
-            // domain.on("error").
-            rawAsap.requestFlush();
-        }
-        // If the task threw an error, we do not want to exit the domain here.
-        // Exiting the domain would prevent the domain from catching the error.
-        this.task = null;
-        this.domain = null;
-        freeTasks.push(this);
-    }
-};
-
-
-
-/***/ }),
-/* 513 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var domain; // The domain module is executed on demand
-var hasSetImmediate = typeof setImmediate === "function";
-
-// Use the fastest means possible to execute a task in its own turn, with
-// priority over other events including network IO events in Node.js.
-//
-// An exception thrown by a task will permanently interrupt the processing of
-// subsequent tasks. The higher level `asap` function ensures that if an
-// exception is thrown by a task, that the task queue will continue flushing as
-// soon as possible, but if you use `rawAsap` directly, you are responsible to
-// either ensure that no exceptions are thrown from your task, or to manually
-// call `rawAsap.requestFlush` if an exception is thrown.
-module.exports = rawAsap;
-function rawAsap(task) {
-    if (!queue.length) {
-        requestFlush();
-        flushing = true;
-    }
-    // Avoids a function call
-    queue[queue.length] = task;
-}
-
-var queue = [];
-// Once a flush has been requested, no further calls to `requestFlush` are
-// necessary until the next `flush` completes.
-var flushing = false;
-// The position of the next task to execute in the task queue. This is
-// preserved between calls to `flush` so that it can be resumed if
-// a task throws an exception.
-var index = 0;
-// If a task schedules additional tasks recursively, the task queue can grow
-// unbounded. To prevent memory excaustion, the task queue will periodically
-// truncate already-completed tasks.
-var capacity = 1024;
-
-// The flush function processes all tasks that have been scheduled with
-// `rawAsap` unless and until one of those tasks throws an exception.
-// If a task throws an exception, `flush` ensures that its state will remain
-// consistent and will resume where it left off when called again.
-// However, `flush` does not make any arrangements to be called again if an
-// exception is thrown.
-function flush() {
-    while (index < queue.length) {
-        var currentIndex = index;
-        // Advance the index before calling the task. This ensures that we will
-        // begin flushing on the next task the task throws an error.
-        index = index + 1;
-        queue[currentIndex].call();
-        // Prevent leaking memory for long chains of recursive calls to `asap`.
-        // If we call `asap` within tasks scheduled by `asap`, the queue will
-        // grow, but to avoid an O(n) walk for every task we execute, we don't
-        // shift tasks off the queue after they have been executed.
-        // Instead, we periodically shift 1024 tasks off the queue.
-        if (index > capacity) {
-            // Manually shift all values starting at the index back to the
-            // beginning of the queue.
-            for (var scan = 0, newLength = queue.length - index; scan < newLength; scan++) {
-                queue[scan] = queue[scan + index];
-            }
-            queue.length -= index;
-            index = 0;
-        }
-    }
-    queue.length = 0;
-    index = 0;
-    flushing = false;
-}
-
-rawAsap.requestFlush = requestFlush;
-function requestFlush() {
-    // Ensure flushing is not bound to any domain.
-    // It is not sufficient to exit the domain, because domains exist on a stack.
-    // To execute code outside of any domain, the following dance is necessary.
-    var parentDomain = process.domain;
-    if (parentDomain) {
-        if (!domain) {
-            // Lazy execute the domain module.
-            // Only employed if the user elects to use domains.
-            domain = __webpack_require__(965);
-        }
-        domain.active = process.domain = null;
-    }
-
-    // `setImmediate` is slower that `process.nextTick`, but `process.nextTick`
-    // cannot handle recursion.
-    // `requestFlush` will only be called recursively from `asap.js`, to resume
-    // flushing after an error is thrown into a domain.
-    // Conveniently, `setImmediate` was introduced in the same version
-    // `process.nextTick` started throwing recursion errors.
-    if (flushing && hasSetImmediate) {
-        setImmediate(flush);
-    } else {
-        process.nextTick(flush);
-    }
-
-    if (parentDomain) {
-        domain.active = process.domain = parentDomain;
-    }
-}
-
-
-/***/ }),
-/* 514 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-var errors = __webpack_require__(205);
-var types = __webpack_require__(206);
-
-var Reader = __webpack_require__(515);
-var Writer = __webpack_require__(516);
-
-
-// --- Exports
-
-module.exports = {
-
-  Reader: Reader,
-
-  Writer: Writer
-
-};
-
-for (var t in types) {
-  if (types.hasOwnProperty(t))
-    module.exports[t] = types[t];
-}
-for (var e in errors) {
-  if (errors.hasOwnProperty(e))
-    module.exports[e] = errors[e];
-}
-
-
-/***/ }),
-/* 515 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-var assert = __webpack_require__(28);
-var Buffer = __webpack_require__(15).Buffer;
-
-var ASN1 = __webpack_require__(206);
-var errors = __webpack_require__(205);
-
-
-// --- Globals
-
-var newInvalidAsn1Error = errors.newInvalidAsn1Error;
-
-
-
-// --- API
-
-function Reader(data) {
-  if (!data || !Buffer.isBuffer(data))
-    throw new TypeError('data must be a node Buffer');
-
-  this._buf = data;
-  this._size = data.length;
-
-  // These hold the "current" state
-  this._len = 0;
-  this._offset = 0;
-}
-
-Object.defineProperty(Reader.prototype, 'length', {
-  enumerable: true,
-  get: function () { return (this._len); }
-});
-
-Object.defineProperty(Reader.prototype, 'offset', {
-  enumerable: true,
-  get: function () { return (this._offset); }
-});
-
-Object.defineProperty(Reader.prototype, 'remain', {
-  get: function () { return (this._size - this._offset); }
-});
-
-Object.defineProperty(Reader.prototype, 'buffer', {
-  get: function () { return (this._buf.slice(this._offset)); }
-});
-
-
-/**
- * Reads a single byte and advances offset; you can pass in `true` to make this
- * a "peek" operation (i.e., get the byte, but don't advance the offset).
- *
- * @param {Boolean} peek true means don't move offset.
- * @return {Number} the next byte, null if not enough data.
- */
-Reader.prototype.readByte = function (peek) {
-  if (this._size - this._offset < 1)
-    return null;
-
-  var b = this._buf[this._offset] & 0xff;
-
-  if (!peek)
-    this._offset += 1;
-
-  return b;
-};
-
-
-Reader.prototype.peek = function () {
-  return this.readByte(true);
-};
-
-
-/**
- * Reads a (potentially) variable length off the BER buffer.  This call is
- * not really meant to be called directly, as callers have to manipulate
- * the internal buffer afterwards.
- *
- * As a result of this call, you can call `Reader.length`, until the
- * next thing called that does a readLength.
- *
- * @return {Number} the amount of offset to advance the buffer.
- * @throws {InvalidAsn1Error} on bad ASN.1
- */
-Reader.prototype.readLength = function (offset) {
-  if (offset === undefined)
-    offset = this._offset;
-
-  if (offset >= this._size)
-    return null;
-
-  var lenB = this._buf[offset++] & 0xff;
-  if (lenB === null)
-    return null;
-
-  if ((lenB & 0x80) === 0x80) {
-    lenB &= 0x7f;
-
-    if (lenB === 0)
-      throw newInvalidAsn1Error('Indefinite length not supported');
-
-    if (lenB > 4)
-      throw newInvalidAsn1Error('encoding too long');
-
-    if (this._size - offset < lenB)
-      return null;
-
-    this._len = 0;
-    for (var i = 0; i < lenB; i++)
-      this._len = (this._len << 8) + (this._buf[offset++] & 0xff);
-
-  } else {
-    // Wasn't a variable length
-    this._len = lenB;
-  }
-
-  return offset;
-};
-
-
-/**
- * Parses the next sequence in this BER buffer.
- *
- * To get the length of the sequence, call `Reader.length`.
- *
- * @return {Number} the sequence's tag.
- */
-Reader.prototype.readSequence = function (tag) {
-  var seq = this.peek();
-  if (seq === null)
-    return null;
-  if (tag !== undefined && tag !== seq)
-    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
-                              ': got 0x' + seq.toString(16));
-
-  var o = this.readLength(this._offset + 1); // stored in `length`
-  if (o === null)
-    return null;
-
-  this._offset = o;
-  return seq;
-};
-
-
-Reader.prototype.readInt = function () {
-  return this._readTag(ASN1.Integer);
-};
-
-
-Reader.prototype.readBoolean = function () {
-  return (this._readTag(ASN1.Boolean) === 0 ? false : true);
-};
-
-
-Reader.prototype.readEnumeration = function () {
-  return this._readTag(ASN1.Enumeration);
-};
-
-
-Reader.prototype.readString = function (tag, retbuf) {
-  if (!tag)
-    tag = ASN1.OctetString;
-
-  var b = this.peek();
-  if (b === null)
-    return null;
-
-  if (b !== tag)
-    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
-                              ': got 0x' + b.toString(16));
-
-  var o = this.readLength(this._offset + 1); // stored in `length`
-
-  if (o === null)
-    return null;
-
-  if (this.length > this._size - o)
-    return null;
-
-  this._offset = o;
-
-  if (this.length === 0)
-    return retbuf ? Buffer.alloc(0) : '';
-
-  var str = this._buf.slice(this._offset, this._offset + this.length);
-  this._offset += this.length;
-
-  return retbuf ? str : str.toString('utf8');
-};
-
-Reader.prototype.readOID = function (tag) {
-  if (!tag)
-    tag = ASN1.OID;
-
-  var b = this.readString(tag, true);
-  if (b === null)
-    return null;
-
-  var values = [];
-  var value = 0;
-
-  for (var i = 0; i < b.length; i++) {
-    var byte = b[i] & 0xff;
-
-    value <<= 7;
-    value += byte & 0x7f;
-    if ((byte & 0x80) === 0) {
-      values.push(value);
-      value = 0;
-    }
-  }
-
-  value = values.shift();
-  values.unshift(value % 40);
-  values.unshift((value / 40) >> 0);
-
-  return values.join('.');
-};
-
-
-Reader.prototype._readTag = function (tag) {
-  assert.ok(tag !== undefined);
-
-  var b = this.peek();
-
-  if (b === null)
-    return null;
-
-  if (b !== tag)
-    throw newInvalidAsn1Error('Expected 0x' + tag.toString(16) +
-                              ': got 0x' + b.toString(16));
-
-  var o = this.readLength(this._offset + 1); // stored in `length`
-  if (o === null)
-    return null;
-
-  if (this.length > 4)
-    throw newInvalidAsn1Error('Integer too long: ' + this.length);
-
-  if (this.length > this._size - o)
-    return null;
-  this._offset = o;
-
-  var fb = this._buf[this._offset];
-  var value = 0;
-
-  for (var i = 0; i < this.length; i++) {
-    value <<= 8;
-    value |= (this._buf[this._offset++] & 0xff);
-  }
-
-  if ((fb & 0x80) === 0x80 && i !== 4)
-    value -= (1 << (i * 8));
-
-  return value >> 0;
-};
-
-
-
-// --- Exported API
-
-module.exports = Reader;
-
-
-/***/ }),
-/* 516 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2011 Mark Cavage <mcavage@gmail.com> All rights reserved.
-
-var assert = __webpack_require__(28);
-var Buffer = __webpack_require__(15).Buffer;
-var ASN1 = __webpack_require__(206);
-var errors = __webpack_require__(205);
-
-
-// --- Globals
-
-var newInvalidAsn1Error = errors.newInvalidAsn1Error;
-
-var DEFAULT_OPTS = {
-  size: 1024,
-  growthFactor: 8
-};
-
-
-// --- Helpers
-
-function merge(from, to) {
-  assert.ok(from);
-  assert.equal(typeof (from), 'object');
-  assert.ok(to);
-  assert.equal(typeof (to), 'object');
-
-  var keys = Object.getOwnPropertyNames(from);
-  keys.forEach(function (key) {
-    if (to[key])
-      return;
-
-    var value = Object.getOwnPropertyDescriptor(from, key);
-    Object.defineProperty(to, key, value);
-  });
-
-  return to;
-}
-
-
-
-// --- API
-
-function Writer(options) {
-  options = merge(DEFAULT_OPTS, options || {});
-
-  this._buf = Buffer.alloc(options.size || 1024);
-  this._size = this._buf.length;
-  this._offset = 0;
-  this._options = options;
-
-  // A list of offsets in the buffer where we need to insert
-  // sequence tag/len pairs.
-  this._seq = [];
-}
-
-Object.defineProperty(Writer.prototype, 'buffer', {
-  get: function () {
-    if (this._seq.length)
-      throw newInvalidAsn1Error(this._seq.length + ' unended sequence(s)');
-
-    return (this._buf.slice(0, this._offset));
-  }
-});
-
-Writer.prototype.writeByte = function (b) {
-  if (typeof (b) !== 'number')
-    throw new TypeError('argument must be a Number');
-
-  this._ensure(1);
-  this._buf[this._offset++] = b;
-};
-
-
-Writer.prototype.writeInt = function (i, tag) {
-  if (typeof (i) !== 'number')
-    throw new TypeError('argument must be a Number');
-  if (typeof (tag) !== 'number')
-    tag = ASN1.Integer;
-
-  var sz = 4;
-
-  while ((((i & 0xff800000) === 0) || ((i & 0xff800000) === 0xff800000 >> 0)) &&
-        (sz > 1)) {
-    sz--;
-    i <<= 8;
-  }
-
-  if (sz > 4)
-    throw newInvalidAsn1Error('BER ints cannot be > 0xffffffff');
-
-  this._ensure(2 + sz);
-  this._buf[this._offset++] = tag;
-  this._buf[this._offset++] = sz;
-
-  while (sz-- > 0) {
-    this._buf[this._offset++] = ((i & 0xff000000) >>> 24);
-    i <<= 8;
-  }
-
-};
-
-
-Writer.prototype.writeNull = function () {
-  this.writeByte(ASN1.Null);
-  this.writeByte(0x00);
-};
-
-
-Writer.prototype.writeEnumeration = function (i, tag) {
-  if (typeof (i) !== 'number')
-    throw new TypeError('argument must be a Number');
-  if (typeof (tag) !== 'number')
-    tag = ASN1.Enumeration;
-
-  return this.writeInt(i, tag);
-};
-
-
-Writer.prototype.writeBoolean = function (b, tag) {
-  if (typeof (b) !== 'boolean')
-    throw new TypeError('argument must be a Boolean');
-  if (typeof (tag) !== 'number')
-    tag = ASN1.Boolean;
-
-  this._ensure(3);
-  this._buf[this._offset++] = tag;
-  this._buf[this._offset++] = 0x01;
-  this._buf[this._offset++] = b ? 0xff : 0x00;
-};
-
-
-Writer.prototype.writeString = function (s, tag) {
-  if (typeof (s) !== 'string')
-    throw new TypeError('argument must be a string (was: ' + typeof (s) + ')');
-  if (typeof (tag) !== 'number')
-    tag = ASN1.OctetString;
-
-  var len = Buffer.byteLength(s);
-  this.writeByte(tag);
-  this.writeLength(len);
-  if (len) {
-    this._ensure(len);
-    this._buf.write(s, this._offset);
-    this._offset += len;
-  }
-};
-
-
-Writer.prototype.writeBuffer = function (buf, tag) {
-  if (typeof (tag) !== 'number')
-    throw new TypeError('tag must be a number');
-  if (!Buffer.isBuffer(buf))
-    throw new TypeError('argument must be a buffer');
-
-  this.writeByte(tag);
-  this.writeLength(buf.length);
-  this._ensure(buf.length);
-  buf.copy(this._buf, this._offset, 0, buf.length);
-  this._offset += buf.length;
-};
-
-
-Writer.prototype.writeStringArray = function (strings) {
-  if ((!strings instanceof Array))
-    throw new TypeError('argument must be an Array[String]');
-
-  var self = this;
-  strings.forEach(function (s) {
-    self.writeString(s);
-  });
-};
-
-// This is really to solve DER cases, but whatever for now
-Writer.prototype.writeOID = function (s, tag) {
-  if (typeof (s) !== 'string')
-    throw new TypeError('argument must be a string');
-  if (typeof (tag) !== 'number')
-    tag = ASN1.OID;
-
-  if (!/^([0-9]+\.){3,}[0-9]+$/.test(s))
-    throw new Error('argument is not a valid OID string');
-
-  function encodeOctet(bytes, octet) {
-    if (octet < 128) {
-        bytes.push(octet);
-    } else if (octet < 16384) {
-        bytes.push((octet >>> 7) | 0x80);
-        bytes.push(octet & 0x7F);
-    } else if (octet < 2097152) {
-      bytes.push((octet >>> 14) | 0x80);
-      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
-      bytes.push(octet & 0x7F);
-    } else if (octet < 268435456) {
-      bytes.push((octet >>> 21) | 0x80);
-      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
-      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
-      bytes.push(octet & 0x7F);
-    } else {
-      bytes.push(((octet >>> 28) | 0x80) & 0xFF);
-      bytes.push(((octet >>> 21) | 0x80) & 0xFF);
-      bytes.push(((octet >>> 14) | 0x80) & 0xFF);
-      bytes.push(((octet >>> 7) | 0x80) & 0xFF);
-      bytes.push(octet & 0x7F);
-    }
-  }
-
-  var tmp = s.split('.');
-  var bytes = [];
-  bytes.push(parseInt(tmp[0], 10) * 40 + parseInt(tmp[1], 10));
-  tmp.slice(2).forEach(function (b) {
-    encodeOctet(bytes, parseInt(b, 10));
-  });
-
-  var self = this;
-  this._ensure(2 + bytes.length);
-  this.writeByte(tag);
-  this.writeLength(bytes.length);
-  bytes.forEach(function (b) {
-    self.writeByte(b);
-  });
-};
-
-
-Writer.prototype.writeLength = function (len) {
-  if (typeof (len) !== 'number')
-    throw new TypeError('argument must be a Number');
-
-  this._ensure(4);
-
-  if (len <= 0x7f) {
-    this._buf[this._offset++] = len;
-  } else if (len <= 0xff) {
-    this._buf[this._offset++] = 0x81;
-    this._buf[this._offset++] = len;
-  } else if (len <= 0xffff) {
-    this._buf[this._offset++] = 0x82;
-    this._buf[this._offset++] = len >> 8;
-    this._buf[this._offset++] = len;
-  } else if (len <= 0xffffff) {
-    this._buf[this._offset++] = 0x83;
-    this._buf[this._offset++] = len >> 16;
-    this._buf[this._offset++] = len >> 8;
-    this._buf[this._offset++] = len;
-  } else {
-    throw newInvalidAsn1Error('Length too long (> 4 bytes)');
-  }
-};
-
-Writer.prototype.startSequence = function (tag) {
-  if (typeof (tag) !== 'number')
-    tag = ASN1.Sequence | ASN1.Constructor;
-
-  this.writeByte(tag);
-  this._seq.push(this._offset);
-  this._ensure(3);
-  this._offset += 3;
-};
-
-
-Writer.prototype.endSequence = function () {
-  var seq = this._seq.pop();
-  var start = seq + 3;
-  var len = this._offset - start;
-
-  if (len <= 0x7f) {
-    this._shift(start, len, -2);
-    this._buf[seq] = len;
-  } else if (len <= 0xff) {
-    this._shift(start, len, -1);
-    this._buf[seq] = 0x81;
-    this._buf[seq + 1] = len;
-  } else if (len <= 0xffff) {
-    this._buf[seq] = 0x82;
-    this._buf[seq + 1] = len >> 8;
-    this._buf[seq + 2] = len;
-  } else if (len <= 0xffffff) {
-    this._shift(start, len, 1);
-    this._buf[seq] = 0x83;
-    this._buf[seq + 1] = len >> 16;
-    this._buf[seq + 2] = len >> 8;
-    this._buf[seq + 3] = len;
-  } else {
-    throw newInvalidAsn1Error('Sequence too long');
-  }
-};
-
-
-Writer.prototype._shift = function (start, len, shift) {
-  assert.ok(start !== undefined);
-  assert.ok(len !== undefined);
-  assert.ok(shift);
-
-  this._buf.copy(this._buf, start + shift, start, start + len);
-  this._offset += shift;
-};
-
-Writer.prototype._ensure = function (len) {
-  assert.ok(len);
-
-  if (this._size - this._offset < len) {
-    var sz = this._size * this._options.growthFactor;
-    if (sz - this._offset < len)
-      sz += len;
-
-    var buf = Buffer.alloc(sz);
-
-    this._buf.copy(buf, 0, 0, this._offset);
-    this._buf = buf;
-    this._size = sz;
-  }
-};
-
-
-
-// --- Exported API
-
-module.exports = Writer;
-
-
-/***/ }),
-/* 517 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports =
-{
-  parallel      : __webpack_require__(519),
-  serial        : __webpack_require__(520),
-  serialOrdered : __webpack_require__(351)
-};
-
-
-/***/ }),
-/* 518 */
-/***/ (function(module, exports) {
-
-module.exports = defer;
-
-/**
- * Runs provided function on next iteration of the event loop
- *
- * @param {function} fn - function to run
- */
-function defer(fn)
-{
-  var nextTick = typeof setImmediate == 'function'
-    ? setImmediate
-    : (
-      typeof process == 'object' && typeof process.nextTick == 'function'
-      ? process.nextTick
-      : null
-    );
-
-  if (nextTick)
-  {
-    nextTick(fn);
-  }
-  else
-  {
-    setTimeout(fn, 0);
-  }
-}
-
-
-/***/ }),
-/* 519 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var iterate    = __webpack_require__(348)
-  , initState  = __webpack_require__(349)
-  , terminator = __webpack_require__(350)
-  ;
-
-// Public API
-module.exports = parallel;
-
-/**
- * Runs iterator over provided array elements in parallel
- *
- * @param   {array|object} list - array or object (named list) to iterate over
- * @param   {function} iterator - iterator to run
- * @param   {function} callback - invoked when all elements processed
- * @returns {function} - jobs terminator
- */
-function parallel(list, iterator, callback)
-{
-  var state = initState(list);
-
-  while (state.index < (state['keyedList'] || list).length)
-  {
-    iterate(list, iterator, state, function(error, result)
-    {
-      if (error)
-      {
-        callback(error, result);
-        return;
-      }
-
-      // looks like it's the last one
-      if (Object.keys(state.jobs).length === 0)
-      {
-        callback(null, state.results);
-        return;
-      }
-    });
-
-    state.index++;
-  }
-
-  return terminator.bind(state, callback);
-}
-
-
-/***/ }),
-/* 520 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var serialOrdered = __webpack_require__(351);
-
-// Public API
-module.exports = serial;
-
-/**
- * Runs iterator over provided array elements in series
- *
- * @param   {array|object} list - array or object (named list) to iterate over
- * @param   {function} iterator - iterator to run
- * @param   {function} callback - invoked when all elements processed
- * @returns {function} - jobs terminator
- */
-function serial(list, iterator, callback)
-{
-  return serialOrdered(list, iterator, null, callback);
-}
-
-
-/***/ }),
-/* 521 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-/*!
- *  Copyright 2010 LearnBoost <dev@learnboost.com>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Module dependencies.
- */
-
-var crypto = __webpack_require__(11)
-  , parse = __webpack_require__(24).parse
-  ;
-
-/**
- * Valid keys.
- */
-
-var keys = 
-  [ 'acl'
-  , 'location'
-  , 'logging'
-  , 'notification'
-  , 'partNumber'
-  , 'policy'
-  , 'requestPayment'
-  , 'torrent'
-  , 'uploadId'
-  , 'uploads'
-  , 'versionId'
-  , 'versioning'
-  , 'versions'
-  , 'website'
-  ]
-
-/**
- * Return an "Authorization" header value with the given `options`
- * in the form of "AWS <key>:<signature>"
- *
- * @param {Object} options
- * @return {String}
- * @api private
- */
-
-function authorization (options) {
-  return 'AWS ' + options.key + ':' + sign(options)
-}
-
-module.exports = authorization
-module.exports.authorization = authorization
-
-/**
- * Simple HMAC-SHA1 Wrapper
- *
- * @param {Object} options
- * @return {String}
- * @api private
- */ 
-
-function hmacSha1 (options) {
-  return crypto.createHmac('sha1', options.secret).update(options.message).digest('base64')
-}
-
-module.exports.hmacSha1 = hmacSha1
-
-/**
- * Create a base64 sha1 HMAC for `options`. 
- * 
- * @param {Object} options
- * @return {String}
- * @api private
- */
-
-function sign (options) {
-  options.message = stringToSign(options)
-  return hmacSha1(options)
-}
-module.exports.sign = sign
-
-/**
- * Create a base64 sha1 HMAC for `options`. 
- *
- * Specifically to be used with S3 presigned URLs
- * 
- * @param {Object} options
- * @return {String}
- * @api private
- */
-
-function signQuery (options) {
-  options.message = queryStringToSign(options)
-  return hmacSha1(options)
-}
-module.exports.signQuery= signQuery
-
-/**
- * Return a string for sign() with the given `options`.
- *
- * Spec:
- * 
- *    <verb>\n
- *    <md5>\n
- *    <content-type>\n
- *    <date>\n
- *    [headers\n]
- *    <resource>
- *
- * @param {Object} options
- * @return {String}
- * @api private
- */
-
-function stringToSign (options) {
-  var headers = options.amazonHeaders || ''
-  if (headers) headers += '\n'
-  var r = 
-    [ options.verb
-    , options.md5
-    , options.contentType
-    , options.date ? options.date.toUTCString() : ''
-    , headers + options.resource
-    ]
-  return r.join('\n')
-}
-module.exports.stringToSign = stringToSign
-
-/**
- * Return a string for sign() with the given `options`, but is meant exclusively
- * for S3 presigned URLs
- *
- * Spec:
- * 
- *    <date>\n
- *    <resource>
- *
- * @param {Object} options
- * @return {String}
- * @api private
- */
-
-function queryStringToSign (options){
-  return 'GET\n\n\n' + options.date + '\n' + options.resource
-}
-module.exports.queryStringToSign = queryStringToSign
-
-/**
- * Perform the following:
- *
- *  - ignore non-amazon headers
- *  - lowercase fields
- *  - sort lexicographically
- *  - trim whitespace between ":"
- *  - join with newline
- *
- * @param {Object} headers
- * @return {String}
- * @api private
- */
-
-function canonicalizeHeaders (headers) {
-  var buf = []
-    , fields = Object.keys(headers)
-    ;
-  for (var i = 0, len = fields.length; i < len; ++i) {
-    var field = fields[i]
-      , val = headers[field]
-      , field = field.toLowerCase()
-      ;
-    if (0 !== field.indexOf('x-amz')) continue
-    buf.push(field + ':' + val)
-  }
-  return buf.sort().join('\n')
-}
-module.exports.canonicalizeHeaders = canonicalizeHeaders
-
-/**
- * Perform the following:
- *
- *  - ignore non sub-resources
- *  - sort lexicographically
- *
- * @param {String} resource
- * @return {String}
- * @api private
- */
-
-function canonicalizeResource (resource) {
-  var url = parse(resource, true)
-    , path = url.pathname
-    , buf = []
-    ;
-
-  Object.keys(url.query).forEach(function(key){
-    if (!~keys.indexOf(key)) return
-    var val = '' == url.query[key] ? '' : '=' + encodeURIComponent(url.query[key])
-    buf.push(key + val)
-  })
-
-  return path + (buf.length ? '?' + buf.sort().join('&') : '')
-}
-module.exports.canonicalizeResource = canonicalizeResource
-
-
-/***/ }),
-/* 522 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var aws4 = exports,
-    url = __webpack_require__(24),
-    querystring = __webpack_require__(196),
-    crypto = __webpack_require__(11),
-    lru = __webpack_require__(523),
-    credentialsCache = lru(1000)
-
-// http://docs.amazonwebservices.com/general/latest/gr/signature-version-4.html
-
-function hmac(key, string, encoding) {
-  return crypto.createHmac('sha256', key).update(string, 'utf8').digest(encoding)
-}
-
-function hash(string, encoding) {
-  return crypto.createHash('sha256').update(string, 'utf8').digest(encoding)
-}
-
-// This function assumes the string has already been percent encoded
-function encodeRfc3986(urlEncodedString) {
-  return urlEncodedString.replace(/[!'()*]/g, function(c) {
-    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
-  })
-}
-
-// request: { path | body, [host], [method], [headers], [service], [region] }
-// credentials: { accessKeyId, secretAccessKey, [sessionToken] }
-function RequestSigner(request, credentials) {
-
-  if (typeof request === 'string') request = url.parse(request)
-
-  var headers = request.headers = (request.headers || {}),
-      hostParts = this.matchHost(request.hostname || request.host || headers.Host || headers.host)
-
-  this.request = request
-  this.credentials = credentials || this.defaultCredentials()
-
-  this.service = request.service || hostParts[0] || ''
-  this.region = request.region || hostParts[1] || 'us-east-1'
-
-  // SES uses a different domain from the service name
-  if (this.service === 'email') this.service = 'ses'
-
-  if (!request.method && request.body)
-    request.method = 'POST'
-
-  if (!headers.Host && !headers.host) {
-    headers.Host = request.hostname || request.host || this.createHost()
-
-    // If a port is specified explicitly, use it as is
-    if (request.port)
-      headers.Host += ':' + request.port
-  }
-  if (!request.hostname && !request.host)
-    request.hostname = headers.Host || headers.host
-
-  this.isCodeCommitGit = this.service === 'codecommit' && request.method === 'GIT'
-}
-
-RequestSigner.prototype.matchHost = function(host) {
-  var match = (host || '').match(/([^\.]+)\.(?:([^\.]*)\.)?amazonaws\.com$/)
-  var hostParts = (match || []).slice(1, 3)
-
-  // ES's hostParts are sometimes the other way round, if the value that is expected
-  // to be region equals ‘es’ switch them back
-  // e.g. search-cluster-name-aaaa00aaaa0aaa0aaaaaaa0aaa.us-east-1.es.amazonaws.com
-  if (hostParts[1] === 'es')
-    hostParts = hostParts.reverse()
-
-  return hostParts
-}
-
-// http://docs.aws.amazon.com/general/latest/gr/rande.html
-RequestSigner.prototype.isSingleRegion = function() {
-  // Special case for S3 and SimpleDB in us-east-1
-  if (['s3', 'sdb'].indexOf(this.service) >= 0 && this.region === 'us-east-1') return true
-
-  return ['cloudfront', 'ls', 'route53', 'iam', 'importexport', 'sts']
-    .indexOf(this.service) >= 0
-}
-
-RequestSigner.prototype.createHost = function() {
-  var region = this.isSingleRegion() ? '' :
-        (this.service === 's3' && this.region !== 'us-east-1' ? '-' : '.') + this.region,
-      service = this.service === 'ses' ? 'email' : this.service
-  return service + region + '.amazonaws.com'
-}
-
-RequestSigner.prototype.prepareRequest = function() {
-  this.parsePath()
-
-  var request = this.request, headers = request.headers, query
-
-  if (request.signQuery) {
-
-    this.parsedPath.query = query = this.parsedPath.query || {}
-
-    if (this.credentials.sessionToken)
-      query['X-Amz-Security-Token'] = this.credentials.sessionToken
-
-    if (this.service === 's3' && !query['X-Amz-Expires'])
-      query['X-Amz-Expires'] = 86400
-
-    if (query['X-Amz-Date'])
-      this.datetime = query['X-Amz-Date']
-    else
-      query['X-Amz-Date'] = this.getDateTime()
-
-    query['X-Amz-Algorithm'] = 'AWS4-HMAC-SHA256'
-    query['X-Amz-Credential'] = this.credentials.accessKeyId + '/' + this.credentialString()
-    query['X-Amz-SignedHeaders'] = this.signedHeaders()
-
-  } else {
-
-    if (!request.doNotModifyHeaders && !this.isCodeCommitGit) {
-      if (request.body && !headers['Content-Type'] && !headers['content-type'])
-        headers['Content-Type'] = 'application/x-www-form-urlencoded; charset=utf-8'
-
-      if (request.body && !headers['Content-Length'] && !headers['content-length'])
-        headers['Content-Length'] = Buffer.byteLength(request.body)
-
-      if (this.credentials.sessionToken && !headers['X-Amz-Security-Token'] && !headers['x-amz-security-token'])
-        headers['X-Amz-Security-Token'] = this.credentials.sessionToken
-
-      if (this.service === 's3' && !headers['X-Amz-Content-Sha256'] && !headers['x-amz-content-sha256'])
-        headers['X-Amz-Content-Sha256'] = hash(this.request.body || '', 'hex')
-
-      if (headers['X-Amz-Date'] || headers['x-amz-date'])
-        this.datetime = headers['X-Amz-Date'] || headers['x-amz-date']
-      else
-        headers['X-Amz-Date'] = this.getDateTime()
-    }
-
-    delete headers.Authorization
-    delete headers.authorization
-  }
-}
-
-RequestSigner.prototype.sign = function() {
-  if (!this.parsedPath) this.prepareRequest()
-
-  if (this.request.signQuery) {
-    this.parsedPath.query['X-Amz-Signature'] = this.signature()
-  } else {
-    this.request.headers.Authorization = this.authHeader()
-  }
-
-  this.request.path = this.formatPath()
-
-  return this.request
-}
-
-RequestSigner.prototype.getDateTime = function() {
-  if (!this.datetime) {
-    var headers = this.request.headers,
-      date = new Date(headers.Date || headers.date || new Date)
-
-    this.datetime = date.toISOString().replace(/[:\-]|\.\d{3}/g, '')
-
-    // Remove the trailing 'Z' on the timestamp string for CodeCommit git access
-    if (this.isCodeCommitGit) this.datetime = this.datetime.slice(0, -1)
-  }
-  return this.datetime
-}
-
-RequestSigner.prototype.getDate = function() {
-  return this.getDateTime().substr(0, 8)
-}
-
-RequestSigner.prototype.authHeader = function() {
-  return [
-    'AWS4-HMAC-SHA256 Credential=' + this.credentials.accessKeyId + '/' + this.credentialString(),
-    'SignedHeaders=' + this.signedHeaders(),
-    'Signature=' + this.signature(),
-  ].join(', ')
-}
-
-RequestSigner.prototype.signature = function() {
-  var date = this.getDate(),
-      cacheKey = [this.credentials.secretAccessKey, date, this.region, this.service].join(),
-      kDate, kRegion, kService, kCredentials = credentialsCache.get(cacheKey)
-  if (!kCredentials) {
-    kDate = hmac('AWS4' + this.credentials.secretAccessKey, date)
-    kRegion = hmac(kDate, this.region)
-    kService = hmac(kRegion, this.service)
-    kCredentials = hmac(kService, 'aws4_request')
-    credentialsCache.set(cacheKey, kCredentials)
-  }
-  return hmac(kCredentials, this.stringToSign(), 'hex')
-}
-
-RequestSigner.prototype.stringToSign = function() {
-  return [
-    'AWS4-HMAC-SHA256',
-    this.getDateTime(),
-    this.credentialString(),
-    hash(this.canonicalString(), 'hex'),
-  ].join('\n')
-}
-
-RequestSigner.prototype.canonicalString = function() {
-  if (!this.parsedPath) this.prepareRequest()
-
-  var pathStr = this.parsedPath.path,
-      query = this.parsedPath.query,
-      headers = this.request.headers,
-      queryStr = '',
-      normalizePath = this.service !== 's3',
-      decodePath = this.service === 's3' || this.request.doNotEncodePath,
-      decodeSlashesInPath = this.service === 's3',
-      firstValOnly = this.service === 's3',
-      bodyHash
-
-  if (this.service === 's3' && this.request.signQuery) {
-    bodyHash = 'UNSIGNED-PAYLOAD'
-  } else if (this.isCodeCommitGit) {
-    bodyHash = ''
-  } else {
-    bodyHash = headers['X-Amz-Content-Sha256'] || headers['x-amz-content-sha256'] ||
-      hash(this.request.body || '', 'hex')
-  }
-
-  if (query) {
-    queryStr = encodeRfc3986(querystring.stringify(Object.keys(query).sort().reduce(function(obj, key) {
-      if (!key) return obj
-      obj[key] = !Array.isArray(query[key]) ? query[key] :
-        (firstValOnly ? query[key][0] : query[key].slice().sort())
-      return obj
-    }, {})))
-  }
-  if (pathStr !== '/') {
-    if (normalizePath) pathStr = pathStr.replace(/\/{2,}/g, '/')
-    pathStr = pathStr.split('/').reduce(function(path, piece) {
-      if (normalizePath && piece === '..') {
-        path.pop()
-      } else if (!normalizePath || piece !== '.') {
-        if (decodePath) piece = decodeURIComponent(piece)
-        path.push(encodeRfc3986(encodeURIComponent(piece)))
-      }
-      return path
-    }, []).join('/')
-    if (pathStr[0] !== '/') pathStr = '/' + pathStr
-    if (decodeSlashesInPath) pathStr = pathStr.replace(/%2F/g, '/')
-  }
-
-  return [
-    this.request.method || 'GET',
-    pathStr,
-    queryStr,
-    this.canonicalHeaders() + '\n',
-    this.signedHeaders(),
-    bodyHash,
-  ].join('\n')
-}
-
-RequestSigner.prototype.canonicalHeaders = function() {
-  var headers = this.request.headers
-  function trimAll(header) {
-    return header.toString().trim().replace(/\s+/g, ' ')
-  }
-  return Object.keys(headers)
-    .sort(function(a, b) { return a.toLowerCase() < b.toLowerCase() ? -1 : 1 })
-    .map(function(key) { return key.toLowerCase() + ':' + trimAll(headers[key]) })
-    .join('\n')
-}
-
-RequestSigner.prototype.signedHeaders = function() {
-  return Object.keys(this.request.headers)
-    .map(function(key) { return key.toLowerCase() })
-    .sort()
-    .join(';')
-}
-
-RequestSigner.prototype.credentialString = function() {
-  return [
-    this.getDate(),
-    this.region,
-    this.service,
-    'aws4_request',
-  ].join('/')
-}
-
-RequestSigner.prototype.defaultCredentials = function() {
-  var env = process.env
-  return {
-    accessKeyId: env.AWS_ACCESS_KEY_ID || env.AWS_ACCESS_KEY,
-    secretAccessKey: env.AWS_SECRET_ACCESS_KEY || env.AWS_SECRET_KEY,
-    sessionToken: env.AWS_SESSION_TOKEN,
-  }
-}
-
-RequestSigner.prototype.parsePath = function() {
-  var path = this.request.path || '/',
-      queryIx = path.indexOf('?'),
-      query = null
-
-  if (queryIx >= 0) {
-    query = querystring.parse(path.slice(queryIx + 1))
-    path = path.slice(0, queryIx)
-  }
-
-  // S3 doesn't always encode characters > 127 correctly and
-  // all services don't encode characters > 255 correctly
-  // So if there are non-reserved chars (and it's not already all % encoded), just encode them all
-  if (/[^0-9A-Za-z!'()*\-._~%/]/.test(path)) {
-    path = path.split('/').map(function(piece) {
-      return encodeURIComponent(decodeURIComponent(piece))
-    }).join('/')
-  }
-
-  this.parsedPath = {
-    path: path,
-    query: query,
-  }
-}
-
-RequestSigner.prototype.formatPath = function() {
-  var path = this.parsedPath.path,
-      query = this.parsedPath.query
-
-  if (!query) return path
-
-  // Services don't support empty query string keys
-  if (query[''] != null) delete query['']
-
-  return path + '?' + encodeRfc3986(querystring.stringify(query))
-}
-
-aws4.RequestSigner = RequestSigner
-
-aws4.sign = function(request, credentials) {
-  return new RequestSigner(request, credentials).sign()
-}
-
-
-/***/ }),
-/* 523 */
-/***/ (function(module, exports) {
-
-module.exports = function(size) {
-  return new LruCache(size)
-}
-
-function LruCache(size) {
-  this.capacity = size | 0
-  this.map = Object.create(null)
-  this.list = new DoublyLinkedList()
-}
-
-LruCache.prototype.get = function(key) {
-  var node = this.map[key]
-  if (node == null) return undefined
-  this.used(node)
-  return node.val
-}
-
-LruCache.prototype.set = function(key, val) {
-  var node = this.map[key]
-  if (node != null) {
-    node.val = val
-  } else {
-    if (!this.capacity) this.prune()
-    if (!this.capacity) return false
-    node = new DoublyLinkedNode(key, val)
-    this.map[key] = node
-    this.capacity--
-  }
-  this.used(node)
-  return true
-}
-
-LruCache.prototype.used = function(node) {
-  this.list.moveToFront(node)
-}
-
-LruCache.prototype.prune = function() {
-  var node = this.list.pop()
-  if (node != null) {
-    delete this.map[node.key]
-    this.capacity++
-  }
-}
-
-
-function DoublyLinkedList() {
-  this.firstNode = null
-  this.lastNode = null
-}
-
-DoublyLinkedList.prototype.moveToFront = function(node) {
-  if (this.firstNode == node) return
-
-  this.remove(node)
-
-  if (this.firstNode == null) {
-    this.firstNode = node
-    this.lastNode = node
-    node.prev = null
-    node.next = null
-  } else {
-    node.prev = null
-    node.next = this.firstNode
-    node.next.prev = node
-    this.firstNode = node
-  }
-}
-
-DoublyLinkedList.prototype.pop = function() {
-  var lastNode = this.lastNode
-  if (lastNode != null) {
-    this.remove(lastNode)
-  }
-  return lastNode
-}
-
-DoublyLinkedList.prototype.remove = function(node) {
-  if (this.firstNode == node) {
-    this.firstNode = node.next
-  } else if (node.prev != null) {
-    node.prev.next = node.next
-  }
-  if (this.lastNode == node) {
-    this.lastNode = node.prev
-  } else if (node.next != null) {
-    node.next.prev = node.prev
-  }
-}
-
-
-function DoublyLinkedNode(key, val) {
-  this.key = key
-  this.val = val
-  this.prev = null
-  this.next = null
-}
-
-
-/***/ }),
-/* 524 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-exports.default = function (message) {
-  return {
-    useless: true,
-    run() {
-      throw new (_errors || _load_errors()).MessageError(message);
-    },
-    setFlags: () => {},
-    hasWrapper: () => true
-  };
-};
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-/***/ }),
-/* 525 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.hasWrapper = exports.run = undefined;
-exports.setFlags = setFlags;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const notYetImplemented = () => Promise.reject(new Error('This command is not implemented yet.'));
-
-function setFlags(commander) {
-  commander.description('Has not been implemented yet');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('access', {
-  public: notYetImplemented,
-  restricted: notYetImplemented,
-  grant: notYetImplemented,
-  revoke: notYetImplemented,
-  lsPackages: notYetImplemented,
-  lsCollaborators: notYetImplemented,
-  edit: notYetImplemented
-}, ['WARNING: This command yet to be implemented.', 'public [<package>]', 'restricted [<package>]', 'grant <read-only|read-write> <scope:team> [<package>]', 'revoke <scope:team> [<package>]', 'ls-packages [<user>|<scope>|<scope:team>]', 'ls-collaborators [<package> [<user>]]', 'edit [<package>]']);
-
-const run = _buildSubCommands.run,
-      hasWrapper = _buildSubCommands.hasWrapper,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.hasWrapper = hasWrapper;
-exports.examples = examples;
-
-/***/ }),
-/* 526 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const binFolder = path.join(config.cwd, config.registryFolders[0], '.bin');
-    if (args.length === 0) {
-      reporter.log(binFolder, { force: true });
-    } else {
-      const binEntries = yield (0, (_run || _load_run()).getBinEntries)(config);
-
-      const binName = args[0];
-      const binPath = binEntries.get(binName);
-
-      if (binPath) {
-        reporter.log(binPath, { force: true });
-      } else {
-        reporter.error(reporter.lang('packageBinaryNotFound', binName));
-      }
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _run;
-
-function _load_run() {
-  return _run = __webpack_require__(360);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-function hasWrapper(commander) {
-  return false;
-}
-
-function setFlags(commander) {
-  commander.description('Displays the location of the yarn bin folder.');
-}
-
-/***/ }),
-/* 527 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const CONFIG_KEYS = [
-// 'reporter',
-'registryFolders', 'linkedModules',
-// 'registries',
-'cache', 'cwd', 'looseSemver', 'commandName', 'preferOffline', 'modulesFolder', 'globalFolder', 'linkFolder', 'offline', 'binLinks', 'ignorePlatform', 'ignoreScripts', 'disablePrepublish', 'nonInteractive', 'workspaceRootFolder', 'lockfileFolder', 'networkConcurrency', 'childConcurrency', 'networkTimeout', 'workspacesEnabled', 'workspacesNohoistEnabled', 'pruneOfflineMirror', 'enableMetaFolder', 'enableLockfileVersions', 'linkFileDependencies', 'cacheFolder', 'tempFolder', 'production'];
-/* eslint object-shorthand: 0 */
-
-function hasWrapper(flags, args) {
-  return args[0] !== 'get';
-}
-
-function setFlags(commander) {
-  commander.description('Manages the yarn configuration files.');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('config', {
-  set(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (args.length === 0 || args.length > 2) {
-        return false;
-      }
-      const key = args[0];
-      var _args$ = args[1];
-      const val = _args$ === undefined ? true : _args$;
-
-      const yarnConfig = config.registries.yarn;
-      yield yarnConfig.saveHomeConfig({ [key]: val });
-      reporter.success(reporter.lang('configSet', key, val));
-      return true;
-    })();
-  },
-
-  get(config, reporter, flags, args) {
-    if (args.length !== 1) {
-      return false;
-    }
-
-    reporter.log(String(config.getOption(args[0])), { force: true });
-    return true;
-  },
-
-  delete: (() => {
-    var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-      if (args.length !== 1) {
-        return false;
-      }
-
-      const key = args[0];
-      const yarnConfig = config.registries.yarn;
-      yield yarnConfig.saveHomeConfig({ [key]: undefined });
-      reporter.success(reporter.lang('configDelete', key));
-      return true;
-    });
-
-    function _delete(_x, _x2, _x3, _x4) {
-      return _ref.apply(this, arguments);
-    }
-
-    return _delete;
-  })(),
-
-  list(config, reporter, flags, args) {
-    if (args.length) {
-      return false;
-    }
-
-    reporter.info(reporter.lang('configYarn'));
-    reporter.inspect(config.registries.yarn.config);
-
-    reporter.info(reporter.lang('configNpm'));
-    reporter.inspect(config.registries.npm.config);
-
-    return true;
-  },
-
-  current(config, reporter, flags, args) {
-    if (args.length) {
-      return false;
-    }
-
-    reporter.log(JSON.stringify(config, CONFIG_KEYS, 2), { force: true });
-
-    return true;
-  }
-});
-
-const run = _buildSubCommands.run,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.examples = examples;
-
-/***/ }),
-/* 528 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const builderName = args[0],
-          rest = args.slice(1);
-
-
-    if (!builderName) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidPackageName'));
-    }
-
-    var _coerceCreatePackageN = coerceCreatePackageName(builderName);
-
-    const packageName = _coerceCreatePackageN.fullName,
-          commandName = _coerceCreatePackageN.name;
-
-
-    const linkLoc = path.join(config.linkFolder, commandName);
-    if (yield (_fs || _load_fs()).exists(linkLoc)) {
-      reporter.info(reporter.lang('linkUsing', packageName));
-    } else {
-      yield (0, (_global || _load_global()).run)(config, reporter, {}, ['add', packageName]);
-    }
-
-    const binFolder = yield (0, (_global || _load_global()).getBinFolder)(config, {});
-    const command = path.resolve(binFolder, commandName);
-    const env = yield (0, (_executeLifecycleScript || _load_executeLifecycleScript()).makeEnv)('create', config.cwd, config);
-
-    yield (_child || _load_child()).spawn(command, rest, { stdio: `inherit`, shell: true, env });
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-exports.parsePackageName = parsePackageName;
-exports.coerceCreatePackageName = coerceCreatePackageName;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = __webpack_require__(111);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _global;
-
-function _load_global() {
-  return _global = __webpack_require__(121);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-function setFlags(commander) {
-  commander.description('Creates new projects from any create-* starter kits.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-function parsePackageName(str) {
-  if (str.charAt(0) === '/') {
-    throw new Error(`Name should not start with "/", got "${str}"`);
-  }
-  if (str.charAt(0) === '.') {
-    throw new Error(`Name should not start with ".", got "${str}"`);
-  }
-  const parts = str.split('/');
-  const isScoped = str.charAt(0) === '@';
-  if (isScoped && parts[0] === '@') {
-    throw new Error(`Scope should not be empty, got "${str}"`);
-  }
-  const scope = isScoped ? parts[0] : '';
-  const name = parts[isScoped ? 1 : 0] || '';
-  const path = parts.slice(isScoped ? 2 : 1).join('/');
-  const fullName = [scope, name].filter(Boolean).join('/');
-  const full = [scope, name, path].filter(Boolean).join('/');
-
-  return { fullName, name, scope, path, full };
-}
-
-function coerceCreatePackageName(str) {
-  const pkgNameObj = parsePackageName(str);
-  const coercedName = pkgNameObj.name !== '' ? `create-${pkgNameObj.name}` : `create`;
-  const coercedPkgNameObj = (0, (_extends2 || _load_extends()).default)({}, pkgNameObj, {
-    name: coercedName,
-    fullName: [pkgNameObj.scope, coercedName].filter(Boolean).join('/'),
-    full: [pkgNameObj.scope, coercedName, pkgNameObj.path].filter(Boolean).join('/')
-  });
-  return coercedPkgNameObj;
-}
-
-/***/ }),
-/* 529 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const env = yield (0, (_executeLifecycleScript || _load_executeLifecycleScript()).makeEnv)(`exec`, config.cwd, config);
-
-    if (args.length < 1) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('execMissingCommand'));
-    }
-
-    const execName = args[0],
-          rest = args.slice(1);
-
-    yield (_child || _load_child()).spawn(execName, rest, { stdio: 'inherit', env });
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = __webpack_require__(111);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function setFlags(commander) {}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 530 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    let manifest;
-    if (flags.useManifest) {
-      manifest = yield config.readJson(flags.useManifest);
-    } else {
-      manifest = yield config.readRootManifest();
-    }
-    if (!manifest.name) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noName'));
-    }
-    if (!manifest.version) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noVersion'));
-    }
-
-    const entry = {
-      name: manifest.name,
-      version: manifest.version,
-      resolved: flags.resolved,
-      registry: flags.registry || manifest._registry,
-      optionalDependencies: manifest.optionalDependencies,
-      dependencies: manifest.dependencies
-    };
-    const pattern = flags.pattern || `${entry.name}@${entry.version}`;
-    reporter.log((0, (_lockfile || _load_lockfile()).stringify)({
-      [pattern]: (0, (_lockfile || _load_lockfile()).implodeEntry)(pattern, entry)
-    }));
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = __webpack_require__(19);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function hasWrapper(commander, args) {
-  return false;
-}
-
-function setFlags(commander) {
-  commander.description('Generates a lock file entry.');
-  commander.option('--use-manifest <location>', 'description');
-  commander.option('--resolved <resolved>', 'description');
-  commander.option('--registry <registry>', 'description');
-}
-
-const examples = exports.examples = ['generate-lock-entry', 'generate-lock-entry --use-manifest ./package.json', 'generate-lock-entry --resolved local-file.tgz#hash'];
-
-/***/ }),
-/* 531 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-exports.run = run;
-
-var _index;
-
-function _load_index() {
-  return _index = _interopRequireDefault(__webpack_require__(334));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _aliases;
-
-function _load_aliases() {
-  return _aliases = _interopRequireDefault(__webpack_require__(352));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const chalk = __webpack_require__(30);
-
-function hasWrapper(flags, args) {
-  return false;
-}
-
-function setFlags(commander) {
-  commander.description('Displays help information.');
-}
-
-function run(config, reporter, commander, args) {
-  if (args.length) {
-    const commandName = args.shift();
-    if (Object.prototype.hasOwnProperty.call((_index || _load_index()).default, commandName)) {
-      const command = (_index || _load_index()).default[commandName];
-      if (command) {
-        command.setFlags(commander);
-        const examples = (command.examples || []).map(example => `    $ yarn ${example}`);
-        if (examples.length) {
-          commander.on('--help', () => {
-            reporter.log(reporter.lang('helpExamples', reporter.rawText(examples.join('\n'))));
-          });
-        }
-        // eslint-disable-next-line yarn-internal/warn-language
-        commander.on('--help', () => reporter.log('  ' + command.getDocsInfo + '\n'));
-        commander.help();
-        return Promise.resolve();
-      }
-    }
-  }
-
-  commander.on('--help', () => {
-    const commandsText = [];
-    for (var _iterator = Object.keys((_index || _load_index()).default).sort((_misc || _load_misc()).sortAlpha), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const name = _ref;
-
-      if ((_index || _load_index()).default[name].useless || Object.keys((_aliases || _load_aliases()).default).map(key => (_aliases || _load_aliases()).default[key]).indexOf(name) > -1) {
-        continue;
-      }
-      if ((_aliases || _load_aliases()).default[name]) {
-        commandsText.push(`    - ${(0, (_misc || _load_misc()).hyphenate)(name)} / ${(_aliases || _load_aliases()).default[name]}`);
-      } else {
-        commandsText.push(`    - ${(0, (_misc || _load_misc()).hyphenate)(name)}`);
-      }
-    }
-    reporter.log(reporter.lang('helpCommands', reporter.rawText(commandsText.join('\n'))));
-    reporter.log(reporter.lang('helpCommandsMore', reporter.rawText(chalk.bold('yarn help COMMAND'))));
-    reporter.log(reporter.lang('helpLearnMore', reporter.rawText(chalk.bold((_constants || _load_constants()).YARN_DOCS))));
-  });
-
-  commander.options.sort((_misc || _load_misc()).sortOptionsByFlags);
-
-  commander.help();
-  return Promise.resolve();
-}
-
-/***/ }),
-/* 532 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.Import = exports.noArguments = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const imp = new Import(flags, config, reporter, new (_lockfile || _load_lockfile()).default({ cache: {} }));
-    yield imp.init();
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _check;
-
-function _load_check() {
-  return _check = __webpack_require__(356);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _baseResolver;
-
-function _load_baseResolver() {
-  return _baseResolver = _interopRequireDefault(__webpack_require__(123));
-}
-
-var _hostedGitResolver;
-
-function _load_hostedGitResolver() {
-  return _hostedGitResolver = _interopRequireDefault(__webpack_require__(109));
-}
-
-var _hostedGitResolver2;
-
-function _load_hostedGitResolver2() {
-  return _hostedGitResolver2 = __webpack_require__(109);
-}
-
-var _gistResolver;
-
-function _load_gistResolver() {
-  return _gistResolver = _interopRequireDefault(__webpack_require__(216));
-}
-
-var _gistResolver2;
-
-function _load_gistResolver2() {
-  return _gistResolver2 = __webpack_require__(216);
-}
-
-var _gitResolver;
-
-function _load_gitResolver() {
-  return _gitResolver = _interopRequireDefault(__webpack_require__(124));
-}
-
-var _fileResolver;
-
-function _load_fileResolver() {
-  return _fileResolver = _interopRequireDefault(__webpack_require__(215));
-}
-
-var _packageResolver;
-
-function _load_packageResolver() {
-  return _packageResolver = _interopRequireDefault(__webpack_require__(366));
-}
-
-var _packageRequest;
-
-function _load_packageRequest() {
-  return _packageRequest = _interopRequireDefault(__webpack_require__(122));
-}
-
-var _packageReference;
-
-function _load_packageReference() {
-  return _packageReference = _interopRequireDefault(__webpack_require__(365));
-}
-
-var _packageFetcher;
-
-function _load_packageFetcher() {
-  return _packageFetcher = _interopRequireWildcard(__webpack_require__(210));
-}
-
-var _packageLinker;
-
-function _load_packageLinker() {
-  return _packageLinker = _interopRequireDefault(__webpack_require__(211));
-}
-
-var _packageCompatibility;
-
-function _load_packageCompatibility() {
-  return _packageCompatibility = _interopRequireWildcard(__webpack_require__(209));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _normalizePattern9;
-
-function _load_normalizePattern() {
-  return _normalizePattern9 = __webpack_require__(37);
-}
-
-var _logicalDependencyTree;
-
-function _load_logicalDependencyTree() {
-  return _logicalDependencyTree = __webpack_require__(582);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = _interopRequireWildcard(__webpack_require__(18));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const uuid = __webpack_require__(119);
-const ssri = __webpack_require__(65);
-const nodeVersion = process.versions.node.split('-')[0];
-
-const noArguments = exports.noArguments = true;
-
-class ImportResolver extends (_baseResolver || _load_baseResolver()).default {
-  getCwd() {
-    if (this.request.parentRequest) {
-      const parent = this.resolver.getStrictResolvedPattern(this.request.parentRequest.pattern);
-      invariant(parent._loc, 'expected package location');
-      return path.dirname(parent._loc);
-    }
-    return this.config.cwd;
-  }
-
-  resolveHostedGit(info, Resolver) {
-    var _normalizePattern = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern.range;
-
-    const exploded = (0, (_hostedGitResolver2 || _load_hostedGitResolver2()).explodeHostedGitFragment)(range, this.reporter);
-    const hash = info.gitHead;
-    invariant(hash, 'expected package gitHead');
-    const url = Resolver.getTarballUrl(exploded, hash);
-    info._uid = hash;
-    info._remote = {
-      resolved: url,
-      type: 'tarball',
-      registry: this.registry,
-      reference: url,
-      hash: null
-    };
-    return info;
-  }
-
-  resolveGist(info, Resolver) {
-    var _normalizePattern2 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern2.range;
-
-    var _explodeGistFragment = (0, (_gistResolver2 || _load_gistResolver2()).explodeGistFragment)(range, this.reporter);
-
-    const id = _explodeGistFragment.id;
-
-    const hash = info.gitHead;
-    invariant(hash, 'expected package gitHead');
-    const url = `https://gist.github.com/${id}.git`;
-    info._uid = hash;
-    info._remote = {
-      resolved: `${url}#${hash}`,
-      type: 'git',
-      registry: this.registry,
-      reference: url,
-      hash
-    };
-    return info;
-  }
-
-  resolveGit(info, Resolver) {
-    const url = info._resolved;
-    const hash = info.gitHead;
-    invariant(url, 'expected package _resolved');
-    invariant(hash, 'expected package gitHead');
-    info._uid = hash;
-    info._remote = {
-      resolved: `${url}#${hash}`,
-      type: 'git',
-      registry: this.registry,
-      reference: url,
-      hash
-    };
-    return info;
-  }
-
-  resolveFile(info, Resolver) {
-    var _normalizePattern3 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern3.range;
-
-    let loc = (_misc || _load_misc()).removePrefix(range, 'file:');
-    if (!path.isAbsolute(loc)) {
-      loc = path.join(this.config.cwd, loc);
-    }
-    info._uid = info.version;
-    info._remote = {
-      type: 'copy',
-      registry: this.registry,
-      hash: `${uuid.v4()}-${new Date().getTime()}`,
-      reference: loc
-    };
-    return info;
-  }
-
-  resolveRegistry(info) {
-    let url = info._resolved;
-    const hash = info._shasum;
-    invariant(url, 'expected package _resolved');
-    invariant(hash, 'expected package _shasum');
-    if (this.config.getOption('registry') === (_constants || _load_constants()).YARN_REGISTRY) {
-      url = url.replace((_constants || _load_constants()).NPM_REGISTRY_RE, (_constants || _load_constants()).YARN_REGISTRY);
-    }
-    info._uid = info.version;
-    info._remote = {
-      resolved: `${url}#${hash}`,
-      type: 'tarball',
-      registry: this.registry,
-      reference: url,
-      integrity: info._integrity ? ssri.parse(info._integrity) : ssri.fromHex(hash, 'sha1'),
-      hash
-    };
-    return info;
-  }
-
-  resolveImport(info) {
-    var _normalizePattern4 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern4.range;
-
-    const Resolver = (0, (_index || _load_index()).getExoticResolver)(range);
-    if (Resolver && Resolver.prototype instanceof (_hostedGitResolver || _load_hostedGitResolver()).default) {
-      return this.resolveHostedGit(info, Resolver);
-    } else if (Resolver && Resolver === (_gistResolver || _load_gistResolver()).default) {
-      return this.resolveGist(info, Resolver);
-    } else if (Resolver && Resolver === (_gitResolver || _load_gitResolver()).default) {
-      return this.resolveGit(info, Resolver);
-    } else if (Resolver && Resolver === (_fileResolver || _load_fileResolver()).default) {
-      return this.resolveFile(info, Resolver);
-    }
-    return this.resolveRegistry(info);
-  }
-
-  resolveLocation(loc) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const info = yield _this.config.tryManifest(loc, 'npm', false);
-      if (!info) {
-        return null;
-      }
-      return _this.resolveImport(info);
-    })();
-  }
-
-  resolveFixedVersion(fixedVersionPattern) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _normalizePattern5 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(fixedVersionPattern);
-
-      const range = _normalizePattern5.range;
-
-      const exoticResolver = (0, (_index || _load_index()).getExoticResolver)(range);
-      const manifest = exoticResolver ? yield _this2.request.findExoticVersionInfo(exoticResolver, range) : yield _this2.request.findVersionOnRegistry(fixedVersionPattern);
-      return manifest;
-    })();
-  }
-
-  _resolveFromFixedVersions() {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      invariant(_this3.request instanceof ImportPackageRequest, 'request must be ImportPackageRequest');
-
-      var _normalizePattern6 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(_this3.pattern);
-
-      const name = _normalizePattern6.name;
-
-      invariant(_this3.request.dependencyTree instanceof (_logicalDependencyTree || _load_logicalDependencyTree()).LogicalDependencyTree, 'dependencyTree on request must be LogicalDependencyTree');
-      const fixedVersionPattern = _this3.request.dependencyTree.getFixedVersionPattern(name, _this3.request.parentNames);
-      const info = yield _this3.config.getCache(`import-resolver-${fixedVersionPattern}`, function () {
-        return _this3.resolveFixedVersion(fixedVersionPattern);
-      });
-      if (info) {
-        return info;
-      }
-      throw new (_errors || _load_errors()).MessageError(_this3.reporter.lang('importResolveFailed', name, _this3.getCwd()));
-    })();
-  }
-
-  _resolveFromNodeModules() {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      var _normalizePattern7 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(_this4.pattern);
-
-      const name = _normalizePattern7.name;
-
-      let cwd = _this4.getCwd();
-      while (!path.relative(_this4.config.cwd, cwd).startsWith('..')) {
-        const loc = path.join(cwd, 'node_modules', name);
-        const info = yield _this4.config.getCache(`import-resolver-${loc}`, function () {
-          return _this4.resolveLocation(loc);
-        });
-        if (info) {
-          return info;
-        }
-        cwd = path.resolve(cwd, '../..');
-      }
-      throw new (_errors || _load_errors()).MessageError(_this4.reporter.lang('importResolveFailed', name, _this4.getCwd()));
-    })();
-  }
-
-  resolve() {
-    if (this.request instanceof ImportPackageRequest && this.request.dependencyTree) {
-      return this._resolveFromFixedVersions();
-    } else {
-      return this._resolveFromNodeModules();
-    }
-  }
-}
-
-class ImportPackageRequest extends (_packageRequest || _load_packageRequest()).default {
-  constructor(req, dependencyTree, resolver) {
-    super(req, resolver);
-    this.import = this.parentRequest instanceof ImportPackageRequest ? this.parentRequest.import : true;
-    this.dependencyTree = dependencyTree;
-  }
-
-  getRootName() {
-    return this.resolver instanceof ImportPackageResolver && this.resolver.rootName || 'root';
-  }
-
-  getParentHumanName() {
-    return [this.getRootName()].concat(this.parentNames).join(' > ');
-  }
-
-  reportResolvedRangeMatch(info, resolved) {
-    if (info.version === resolved.version) {
-      return;
-    }
-    this.reporter.warn(this.reporter.lang('importResolvedRangeMatch', resolved.version, resolved.name, info.version, this.getParentHumanName()));
-  }
-
-  _findResolvedManifest(info) {
-    var _normalizePattern8 = (0, (_normalizePattern9 || _load_normalizePattern()).normalizePattern)(this.pattern);
-
-    const range = _normalizePattern8.range,
-          name = _normalizePattern8.name;
-
-    const solvedRange = (_semver || _load_semver()).default.validRange(range) ? info.version : range;
-    const resolved = this.resolver.getExactVersionMatch(name, solvedRange, info);
-    if (resolved) {
-      return resolved;
-    }
-    invariant(info._remote, 'expected package remote');
-    const ref = new (_packageReference || _load_packageReference()).default(this, info, info._remote);
-    info._reference = ref;
-    return info;
-  }
-
-  resolveToExistingVersion(info) {
-    const resolved = this._findResolvedManifest(info);
-    invariant(resolved, 'should have found a resolved reference');
-    const ref = resolved._reference;
-    invariant(ref, 'should have a package reference');
-    ref.addRequest(this);
-    ref.addPattern(this.pattern, resolved);
-    ref.addOptional(this.optional);
-  }
-
-  findVersionInfo() {
-    if (!this.import) {
-      this.reporter.verbose(this.reporter.lang('skippingImport', this.pattern, this.getParentHumanName()));
-      return super.findVersionInfo();
-    }
-    const resolver = new ImportResolver(this, this.pattern);
-    return resolver.resolve().catch(() => {
-      this.import = false;
-      this.reporter.warn(this.reporter.lang('importFailed', this.pattern, this.getParentHumanName()));
-      return super.findVersionInfo();
-    });
-  }
-}
-
-class ImportPackageResolver extends (_packageResolver || _load_packageResolver()).default {
-  constructor(config, lockfile) {
-    super(config, lockfile);
-    this.next = [];
-    this.rootName = 'root';
-  }
-
-  find(req) {
-    this.next.push(req);
-    return Promise.resolve();
-  }
-
-  findOne(req) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (_this5.activity) {
-        _this5.activity.tick(req.pattern);
-      }
-      const request = new ImportPackageRequest(req, _this5.dependencyTree, _this5);
-      yield request.find({ fresh: false });
-    })();
-  }
-
-  findAll(deps) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield Promise.all(deps.map(function (dep) {
-        return _this6.findOne(dep);
-      }));
-      deps = _this6.next;
-      _this6.next = [];
-      if (!deps.length) {
-        // all required package versions have been discovered, so now packages that
-        // resolved to existing versions can be resolved to their best available version
-        _this6.resolvePackagesWithExistingVersions();
-        return;
-      }
-      yield _this6.findAll(deps);
-    })();
-  }
-
-  resetOptional() {
-    for (const pattern in this.patterns) {
-      const ref = this.patterns[pattern]._reference;
-      invariant(ref, 'expected reference');
-      ref.optional = null;
-      for (var _iterator = ref.requests, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const req = _ref;
-
-        ref.addOptional(req.optional);
-      }
-    }
-  }
-
-  init(deps, { isFlat, isFrozen, workspaceLayout } = { isFlat: false, isFrozen: false, workspaceLayout: undefined }) {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this7.flat = Boolean(isFlat);
-      const activity = _this7.activity = _this7.reporter.activity();
-      yield _this7.findAll(deps);
-      _this7.resetOptional();
-      activity.end();
-      _this7.activity = null;
-    })();
-  }
-}
-
-class Import extends (_install || _load_install()).Install {
-  constructor(flags, config, reporter, lockfile) {
-    super(flags, config, reporter, lockfile);
-    this.resolver = new ImportPackageResolver(this.config, this.lockfile);
-    this.linker = new (_packageLinker || _load_packageLinker()).default(config, this.resolver);
-  }
-  createLogicalDependencyTree(packageJson, packageLock) {
-    invariant(packageJson, 'package.json should exist');
-    invariant(packageLock, 'package-lock.json should exist');
-    invariant(this.resolver instanceof ImportPackageResolver, 'resolver should be an ImportPackageResolver');
-    try {
-      this.resolver.dependencyTree = new (_logicalDependencyTree || _load_logicalDependencyTree()).LogicalDependencyTree(packageJson, packageLock);
-    } catch (e) {
-      throw new (_errors || _load_errors()).MessageError(this.reporter.lang('importSourceFilesCorrupted'));
-    }
-  }
-  getExternalLockfileContents() {
-    var _this8 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      try {
-        var _ref2 = yield Promise.all([(_fs || _load_fs()).readFile(path.join(_this8.config.cwd, (_constants || _load_constants()).NODE_PACKAGE_JSON)), (_fs || _load_fs()).readFile(path.join(_this8.config.cwd, (_constants || _load_constants()).NPM_LOCK_FILENAME))]);
-
-        const packageJson = _ref2[0],
-              packageLock = _ref2[1];
-
-        return { packageJson, packageLock };
-      } catch (e) {
-        return { packageJson: null, packageLock: null };
-      }
-    })();
-  }
-  init() {
-    var _this9 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (yield (_fs || _load_fs()).exists(path.join(_this9.config.cwd, (_constants || _load_constants()).LOCKFILE_FILENAME))) {
-        throw new (_errors || _load_errors()).MessageError(_this9.reporter.lang('lockfileExists'));
-      }
-
-      var _ref3 = yield _this9.getExternalLockfileContents();
-
-      const packageJson = _ref3.packageJson,
-            packageLock = _ref3.packageLock;
-
-      const importSource = packageJson && packageLock && (_semver || _load_semver()).default.satisfies(nodeVersion, '>=5.0.0') ? 'package-lock.json' : 'node_modules';
-      if (importSource === 'package-lock.json') {
-        _this9.reporter.info(_this9.reporter.lang('importPackageLock'));
-        _this9.createLogicalDependencyTree(packageJson, packageLock);
-      }
-      if (importSource === 'node_modules') {
-        _this9.reporter.info(_this9.reporter.lang('importNodeModules'));
-        yield (0, (_check || _load_check()).verifyTreeCheck)(_this9.config, _this9.reporter, {}, []);
-      }
-
-      var _ref4 = yield _this9.fetchRequestFromCwd();
-
-      const requests = _ref4.requests,
-            patterns = _ref4.patterns,
-            manifest = _ref4.manifest;
-
-      if (manifest.name && _this9.resolver instanceof ImportPackageResolver) {
-        _this9.resolver.rootName = manifest.name;
-      }
-      yield _this9.resolver.init(requests, { isFlat: _this9.flags.flat, isFrozen: _this9.flags.frozenLockfile });
-      const manifests = yield (_packageFetcher || _load_packageFetcher()).fetch(_this9.resolver.getManifests(), _this9.config);
-      _this9.resolver.updateManifests(manifests);
-      yield (_packageCompatibility || _load_packageCompatibility()).check(_this9.resolver.getManifests(), _this9.config, _this9.flags.ignoreEngines);
-      yield _this9.linker.resolvePeerModules();
-      yield _this9.saveLockfileAndIntegrity(patterns);
-      return patterns;
-    })();
-  }
-}
-
-exports.Import = Import;
-function setFlags(commander) {
-  commander.description('Generates yarn.lock from an npm package-lock.json file or an existing npm-installed node_modules folder.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 533 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (args.length > 2) {
-      reporter.error(reporter.lang('tooManyArguments', 2));
-      return;
-    }
-
-    let packageName = args.shift() || '.';
-
-    // Handle the case when we are referencing a local package.
-    if (packageName === '.') {
-      packageName = (yield config.readRootManifest()).name;
-    }
-
-    const packageInput = (_npmRegistry || _load_npmRegistry()).default.escapeName(packageName);
-
-    var _parsePackageName = (0, (_parsePackageName2 || _load_parsePackageName()).default)(packageInput);
-
-    const name = _parsePackageName.name,
-          version = _parsePackageName.version;
-
-
-    let result;
-    try {
-      result = yield config.registries.npm.request(name, { unfiltered: true });
-    } catch (e) {
-      reporter.error(reporter.lang('infoFail'));
-      return;
-    }
-    if (!result) {
-      reporter.error(reporter.lang('infoFail'));
-      return;
-    }
-
-    result = clean(result);
-
-    const versions = result.versions;
-    // $FlowFixMe
-    result.versions = Object.keys(versions).sort(semver.compareLoose);
-    result.version = version || result['dist-tags'].latest;
-    result = Object.assign(result, versions[result.version]);
-
-    const fieldPath = args.shift();
-    const fields = fieldPath ? fieldPath.split('.') : [];
-
-    // Readmes can be long so exclude them unless explicitly asked for.
-    if (fields[0] !== 'readme') {
-      delete result.readme;
-    }
-
-    result = fields.reduce(function (prev, cur) {
-      return prev && prev[cur];
-    }, result);
-    reporter.inspect(result);
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-var _parsePackageName2;
-
-function _load_parsePackageName() {
-  return _parsePackageName2 = _interopRequireDefault(__webpack_require__(588));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const semver = __webpack_require__(22);
-
-function clean(object) {
-  if (Array.isArray(object)) {
-    const result = [];
-    object.forEach(item => {
-      item = clean(item);
-      if (item) {
-        result.push(item);
-      }
-    });
-    return result;
-  } else if (typeof object === 'object') {
-    const result = {};
-    for (const key in object) {
-      if (key.startsWith('_')) {
-        continue;
-      }
-
-      const item = clean(object[key]);
-      if (item) {
-        result[key] = item;
-      }
-    }
-    return result;
-  } else if (object) {
-    return object;
-  } else {
-    return null;
-  }
-}
-
-function setFlags(commander) {
-  commander.description('Shows information about a package.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 534 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getGitConfigInfo = exports.run = exports.shouldRunInCurrentCwd = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (flags.install) {
-      const lockfilePath = path.resolve(config.cwd, 'yarn.lock');
-      if (!(yield (_fs || _load_fs()).exists(lockfilePath))) {
-        yield (_fs || _load_fs()).writeFile(lockfilePath, '');
-      }
-      yield (_child || _load_child()).spawn((_constants || _load_constants()).NODE_BIN_PATH, [process.argv[1], 'policies', 'set-version', flags.install], {
-        stdio: 'inherit',
-        cwd: config.cwd
-      });
-      yield (_child || _load_child()).spawn((_constants || _load_constants()).NODE_BIN_PATH, [process.argv[1], 'init', ...(flags.yes ? ['-y'] : []), ...(flags.private ? ['-p'] : [])], {
-        stdio: 'inherit',
-        cwd: config.cwd
-      });
-      return;
-    }
-
-    const manifests = yield config.getRootManifests();
-
-    let repository = {};
-    const author = {
-      name: config.getOption('init-author-name'),
-      email: config.getOption('init-author-email'),
-      url: config.getOption('init-author-url')
-    };
-    if (yield (_fs || _load_fs()).exists(path.join(config.cwd, '.git'))) {
-      // get git origin of the cwd
-      try {
-        repository = {
-          type: 'git',
-          url: yield (_child || _load_child()).spawn('git', ['config', 'remote.origin.url'], {
-            cwd: config.cwd
-          })
-        };
-      } catch (ex) {
-        // Ignore - Git repo may not have an origin URL yet (eg. if it only exists locally)
-      }
-
-      if (author.name === undefined) {
-        author.name = yield getGitConfigInfo('user.name');
-      }
-
-      if (author.email === undefined) {
-        author.email = yield getGitConfigInfo('user.email');
-      }
-    }
-
-    const keys = [{
-      key: 'name',
-      question: 'name',
-      default: path.basename(config.cwd),
-      validation: (_validate || _load_validate()).isValidPackageName,
-      validationError: 'invalidPackageName'
-    }, {
-      key: 'version',
-      question: 'version',
-      default: String(config.getOption('init-version'))
-    }, {
-      key: 'description',
-      question: 'description',
-      default: ''
-    }, {
-      key: 'main',
-      question: 'entry point',
-      default: 'index.js'
-    }, {
-      key: 'repository',
-      question: 'repository url',
-      default: (0, (_util || _load_util()).extractRepositoryUrl)(repository)
-    }, {
-      key: 'author',
-      question: 'author',
-      default: (0, (_util || _load_util()).stringifyPerson)(author)
-    }, {
-      key: 'license',
-      question: 'license',
-      default: String(config.getOption('init-license'))
-    }, {
-      key: 'private',
-      question: 'private',
-      default: config.getOption('init-private') || '',
-      inputFormatter: yn
-    }];
-
-    // get answers
-    const pkg = {};
-    for (var _iterator = keys, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const entry = _ref2;
-      const yes = flags.yes,
-            privateFlag = flags.private;
-      const manifestKey = entry.key;
-      let question = entry.question,
-          def = entry.default;
-
-
-      for (var _iterator4 = (_index || _load_index()).registryNames, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref5;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref5 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref5 = _i4.value;
-        }
-
-        const registryName = _ref5;
-        const object = manifests[registryName].object;
-
-        let val = objectPath.get(object, manifestKey);
-        if (!val) {
-          break;
-        }
-        if (typeof val === 'object') {
-          if (manifestKey === 'author') {
-            val = (0, (_util || _load_util()).stringifyPerson)(val);
-          } else if (manifestKey === 'repository') {
-            val = (0, (_util || _load_util()).extractRepositoryUrl)(val);
-          }
-        }
-        def = val;
-      }
-
-      if (manifestKey === 'private' && privateFlag) {
-        def = true;
-      }
-
-      if (def) {
-        question += ` (${String(def)})`;
-      }
-
-      let answer;
-      let validAnswer = false;
-
-      if (yes) {
-        answer = def;
-      } else {
-        // loop until a valid answer is provided, if validation is on entry
-        if (entry.validation) {
-          while (!validAnswer) {
-            answer = (yield reporter.question(question)) || def;
-            // validate answer
-            if (entry.validation(String(answer))) {
-              validAnswer = true;
-            } else {
-              reporter.error(reporter.lang('invalidPackageName'));
-            }
-          }
-        } else {
-          answer = (yield reporter.question(question)) || def;
-        }
-      }
-
-      if (answer) {
-        if (entry.inputFormatter) {
-          answer = entry.inputFormatter(answer);
-        }
-        objectPath.set(pkg, manifestKey, answer);
-      }
-    }
-
-    if (pkg.repository && (_githubResolver || _load_githubResolver()).default.isVersion(pkg.repository)) {
-      pkg.repository = `https://github.com/${pkg.repository}`;
-    }
-
-    // save answers
-    const targetManifests = [];
-    for (var _iterator2 = (_index || _load_index()).registryNames, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref3 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref3 = _i2.value;
-      }
-
-      const registryName = _ref3;
-
-      const info = manifests[registryName];
-      if (info.exists) {
-        targetManifests.push(info);
-      }
-    }
-    if (!targetManifests.length) {
-      targetManifests.push(manifests.npm);
-    }
-    for (var _iterator3 = targetManifests, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref4 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref4 = _i3.value;
-      }
-
-      const targetManifest = _ref4;
-
-      Object.assign(targetManifest.object, pkg);
-      reporter.success(`Saved ${path.basename(targetManifest.loc)}`);
-    }
-
-    yield config.saveRootManifests(manifests);
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let getGitConfigInfo = exports.getGitConfigInfo = (() => {
-  var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (credential, spawn = (_child || _load_child()).spawn) {
-    try {
-      // try to get author default based on git config
-      return yield spawn('git', ['config', credential]);
-    } catch (e) {
-      return '';
-    }
-  });
-
-  return function getGitConfigInfo(_x5) {
-    return _ref6.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(221);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(57);
-}
-
-var _githubResolver;
-
-function _load_githubResolver() {
-  return _githubResolver = _interopRequireDefault(__webpack_require__(367));
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _validate;
-
-function _load_validate() {
-  return _validate = _interopRequireWildcard(__webpack_require__(125));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const objectPath = __webpack_require__(304);
-
-const path = __webpack_require__(0);
-const yn = __webpack_require__(962);
-
-function setFlags(commander) {
-  commander.description('Interactively creates or updates a package.json file.');
-  commander.option('-y, --yes', 'use default options');
-  commander.option('-p, --private', 'use default options and private true');
-  commander.option('-i, --install <value>', 'install a specific Yarn release');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-const shouldRunInCurrentCwd = exports.shouldRunInCurrentCwd = true;
-
-/***/ }),
-/* 535 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.run = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getManifests = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, flags) {
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.cwd);
-    const install = new (_install || _load_install()).Install((0, (_extends2 || _load_extends()).default)({ skipIntegrityCheck: true }, flags), config, new (_baseReporter || _load_baseReporter()).default(), lockfile);
-    yield install.hydrate(true);
-
-    let manifests = install.resolver.getManifests();
-
-    // sort by name
-    manifests = manifests.sort(function (a, b) {
-      if (!a.name && !b.name) {
-        return 0;
-      }
-
-      if (!a.name) {
-        return 1;
-      }
-
-      if (!b.name) {
-        return -1;
-      }
-
-      return a.name.localeCompare(b.name);
-    });
-
-    // filter ignored manifests
-    manifests = manifests.filter(function (manifest) {
-      const ref = manifest._reference;
-      return !!ref && !ref.ignore;
-    });
-
-    return manifests;
-  });
-
-  return function getManifests(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const manifests = yield getManifests(config, flags);
-    const manifestsByLicense = new Map();
-
-    for (var _iterator = manifests, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref4 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref4 = _i.value;
-      }
-
-      const _ref3 = _ref4;
-      const name = _ref3.name,
-            version = _ref3.version,
-            license = _ref3.license,
-            repository = _ref3.repository,
-            homepage = _ref3.homepage,
-            author = _ref3.author;
-
-      const licenseKey = license || 'UNKNOWN';
-      const url = repository ? repository.url : homepage;
-      const vendorUrl = homepage || author && author.url;
-      const vendorName = author && author.name;
-
-      if (!manifestsByLicense.has(licenseKey)) {
-        manifestsByLicense.set(licenseKey, new Map());
-      }
-
-      const byLicense = manifestsByLicense.get(licenseKey);
-      invariant(byLicense, 'expected value');
-      byLicense.set(`${name}@${version}`, {
-        name,
-        version,
-        url,
-        vendorUrl,
-        vendorName
-      });
-    }
-
-    if (flags.json) {
-      const body = [];
-
-      manifestsByLicense.forEach(function (license, licenseKey) {
-        license.forEach(function ({ name, version, url, vendorUrl, vendorName }) {
-          body.push([name, version, licenseKey, url || 'Unknown', vendorUrl || 'Unknown', vendorName || 'Unknown']);
-        });
-      });
-
-      reporter.table(['Name', 'Version', 'License', 'URL', 'VendorUrl', 'VendorName'], body);
-    } else {
-      const trees = [];
-
-      manifestsByLicense.forEach(function (license, licenseKey) {
-        const licenseTree = [];
-
-        license.forEach(function ({ name, version, url, vendorUrl, vendorName }) {
-          const children = [];
-
-          if (url) {
-            children.push({ name: `${reporter.format.bold('URL:')} ${url}` });
-          }
-
-          if (vendorUrl) {
-            children.push({ name: `${reporter.format.bold('VendorUrl:')} ${vendorUrl}` });
-          }
-
-          if (vendorName) {
-            children.push({ name: `${reporter.format.bold('VendorName:')} ${vendorName}` });
-          }
-
-          licenseTree.push({
-            name: `${name}@${version}`,
-            children
-          });
-        });
-
-        trees.push({
-          name: licenseKey,
-          children: licenseTree
-        });
-      });
-
-      reporter.tree('licenses', trees, { force: true });
-    }
-  });
-
-  return function list(_x3, _x4, _x5, _x6) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = _interopRequireDefault(__webpack_require__(108));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-function hasWrapper(flags, args) {
-  return args[0] != 'generate-disclaimer';
-}
-
-function setFlags(commander) {
-  commander.description('Lists licenses for installed packages.');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('licenses', {
-  ls(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      reporter.warn(`\`yarn licenses ls\` is deprecated. Please use \`yarn licenses list\`.`);
-      yield list(config, reporter, flags, args);
-    })();
-  },
-
-  list(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield list(config, reporter, flags, args);
-    })();
-  },
-
-  generateDisclaimer(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      /* eslint-disable no-console */
-
-      // `reporter.log` dumps a bunch of ANSI escapes to clear the current line and
-      // is for abstracting the console output so it can be consumed by other tools
-      // (JSON output being the primary one). This command is only for text consumption
-      // and you should just be dumping it to a TXT file. Using a reporter here has the
-      // potential to mess up the output since it might print ansi escapes.
-      const manifests = yield getManifests(config, flags);
-      const manifest = yield config.readRootManifest();
-
-      // Create a map of license text to manifest so that packages with exactly
-      // the same license text are grouped together.
-      const manifestsByLicense = new Map();
-      for (var _iterator2 = manifests, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref5;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref5 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref5 = _i2.value;
-        }
-
-        const manifest = _ref5;
-        const licenseText = manifest.licenseText,
-              noticeText = manifest.noticeText;
-
-        let licenseKey;
-        if (!licenseText) {
-          continue;
-        }
-
-        if (!noticeText) {
-          licenseKey = licenseText;
-        } else {
-          licenseKey = `${licenseText}\n\nNOTICE\n\n${noticeText}`;
-        }
-
-        if (!manifestsByLicense.has(licenseKey)) {
-          manifestsByLicense.set(licenseKey, new Map());
-        }
-
-        const byLicense = manifestsByLicense.get(licenseKey);
-        invariant(byLicense, 'expected value');
-        byLicense.set(manifest.name, manifest);
-      }
-
-      console.log('THE FOLLOWING SETS FORTH ATTRIBUTION NOTICES FOR THIRD PARTY SOFTWARE THAT MAY BE CONTAINED ' + `IN PORTIONS OF THE ${String(manifest.name).toUpperCase().replace(/-/g, ' ')} PRODUCT.`);
-      console.log();
-
-      for (var _iterator3 = manifestsByLicense, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref7 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref7 = _i3.value;
-        }
-
-        const _ref6 = _ref7;
-        const licenseKey = _ref6[0];
-        const manifests = _ref6[1];
-
-        console.log('-----');
-        console.log();
-
-        const names = [];
-        const urls = [];
-        for (var _iterator4 = manifests, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref9;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref9 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref9 = _i4.value;
-          }
-
-          const _ref8 = _ref9;
-          const name = _ref8[0];
-          const repository = _ref8[1].repository;
-
-          names.push(name);
-          if (repository && repository.url) {
-            urls.push(manifests.size === 1 ? repository.url : `${repository.url} (${name})`);
-          }
-        }
-
-        const heading = [];
-        heading.push(`The following software may be included in this product: ${names.join(', ')}.`);
-        if (urls.length > 0) {
-          heading.push(`A copy of the source code may be downloaded from ${urls.join(', ')}.`);
-        }
-        heading.push('This software contains the following license and notice below:');
-
-        console.log(heading.join(' '));
-        console.log();
-
-        if (licenseKey) {
-          console.log(licenseKey.trim());
-        } else {
-          // what do we do here? base it on `license`?
-        }
-
-        console.log();
-      }
-    })();
-  }
-});
-
-const run = _buildSubCommands.run,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.examples = examples;
-
-/***/ }),
-/* 536 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    yield config.registries.yarn.saveHomeConfig({
-      username: undefined,
-      email: undefined
-    });
-
-    reporter.success(reporter.lang('clearedCredentials'));
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function setFlags(commander) {
-  commander.description('Clears registry username and email.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 537 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const pnpPath = `${config.lockfileFolder}/${(_constants || _load_constants()).PNP_FILENAME}`;
-
-    let nodeOptions = process.env.NODE_OPTIONS || '';
-    if (yield (_fs || _load_fs()).exists(pnpPath)) {
-      nodeOptions = `--require ${pnpPath} ${nodeOptions}`;
-    }
-
-    try {
-      yield (_child || _load_child()).spawn((_constants || _load_constants()).NODE_BIN_PATH, args, {
-        stdio: 'inherit',
-        cwd: flags.into || config.cwd,
-        env: (0, (_extends2 || _load_extends()).default)({}, process.env, { NODE_OPTIONS: nodeOptions })
-      });
-    } catch (err) {
-      throw err;
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function setFlags(commander) {
-  commander.description('Runs Node with the same version that the one used by Yarn itself, and by default from the project root');
-  commander.usage('node [--into PATH] [... args]');
-  commander.option('--into <path>', 'Sets the cwd to the specified location');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 538 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.requireLockfile = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder);
-    const install = new (_install || _load_install()).Install((0, (_extends2 || _load_extends()).default)({}, flags, { includeWorkspaceDeps: true }), config, reporter, lockfile);
-    let deps = yield (_packageRequest || _load_packageRequest()).default.getOutdatedPackages(lockfile, install, config, reporter);
-
-    if (args.length) {
-      const requested = new Set(args);
-
-      deps = deps.filter(function ({ name }) {
-        return requested.has(name);
-      });
-    }
-
-    const getNameFromHint = function getNameFromHint(hint) {
-      return hint ? `${hint}Dependencies` : 'dependencies';
-    };
-    const colorizeName = function colorizeName({ current, latest, name }) {
-      return reporter.format[(0, (_colorForVersions || _load_colorForVersions()).default)(current, latest)](name);
-    };
-
-    if (deps.length) {
-      const usesWorkspaces = !!config.workspaceRootFolder;
-      const body = deps.map(function (info) {
-        const row = [colorizeName(info), info.current, (0, (_colorizeDiff || _load_colorizeDiff()).default)(info.current, info.wanted, reporter), reporter.format.cyan(info.latest), info.workspaceName || '', getNameFromHint(info.hint), reporter.format.cyan(info.url)];
-        if (!usesWorkspaces) {
-          row.splice(4, 1);
-        }
-        return row;
-      });
-
-      const red = reporter.format.red('<red>');
-      const yellow = reporter.format.yellow('<yellow>');
-      const green = reporter.format.green('<green>');
-      reporter.info(reporter.lang('legendColorsForVersionUpdates', red, yellow, green));
-
-      const header = ['Package', 'Current', 'Wanted', 'Latest', 'Workspace', 'Package Type', 'URL'];
-      if (!usesWorkspaces) {
-        header.splice(4, 1);
-      }
-      reporter.table(header, body);
-
-      return 1;
-    }
-    return 0;
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _packageRequest;
-
-function _load_packageRequest() {
-  return _packageRequest = _interopRequireDefault(__webpack_require__(122));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _colorForVersions;
-
-function _load_colorForVersions() {
-  return _colorForVersions = _interopRequireDefault(__webpack_require__(369));
-}
-
-var _colorizeDiff;
-
-function _load_colorizeDiff() {
-  return _colorizeDiff = _interopRequireDefault(__webpack_require__(370));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const requireLockfile = exports.requireLockfile = true;
-
-function setFlags(commander) {
-  commander.description('Checks for outdated package dependencies.');
-  commander.usage('outdated [packages ...]');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 539 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.hasWrapper = exports.run = exports.mutate = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let mutate = exports.mutate = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (args, config, reporter, buildMessages, mutator) {
-    if (args.length !== 2 && args.length !== 1) {
-      return false;
-    }
-
-    const username = args.shift();
-    const name = yield (0, (_tag || _load_tag()).getName)(args, config);
-    if (!(0, (_validate || _load_validate()).isValidPackageName)(name)) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('invalidPackageName'));
-    }
-
-    const msgs = buildMessages(username, name);
-    reporter.step(1, 3, reporter.lang('loggingIn'));
-    const revoke = yield (0, (_login || _load_login()).getToken)(config, reporter, name);
-
-    reporter.step(2, 3, msgs.info);
-    const user = yield config.registries.npm.request(`-/user/org.couchdb.user:${username}`);
-    let error = false;
-    if (user) {
-      // get package
-      const pkg = yield config.registries.npm.request((_npmRegistry || _load_npmRegistry()).default.escapeName(name));
-      if (pkg) {
-        pkg.maintainers = pkg.maintainers || [];
-        error = mutator({ name: user.name, email: user.email }, pkg);
-      } else {
-        error = true;
-        reporter.error(reporter.lang('unknownPackage', name));
-      }
-
-      // update package
-      if (pkg && !error) {
-        const res = yield config.registries.npm.request(`${(_npmRegistry || _load_npmRegistry()).default.escapeName(name)}/-rev/${pkg._rev}`, {
-          method: 'PUT',
-          body: {
-            _id: pkg._id,
-            _rev: pkg._rev,
-            maintainers: pkg.maintainers
-          }
-        });
-
-        if (res != null && res.success) {
-          reporter.success(msgs.success);
-        } else {
-          error = true;
-          reporter.error(msgs.error);
-        }
-      }
-    } else {
-      error = true;
-      reporter.error(reporter.lang('unknownUser', username));
-    }
-
-    reporter.step(3, 3, reporter.lang('revokingToken'));
-    yield revoke();
-
-    if (error) {
-      throw new Error();
-    } else {
-      return true;
-    }
-  });
-
-  return function mutate(_x, _x2, _x3, _x4, _x5) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (args.length > 1) {
-      return false;
-    }
-    const name = yield (0, (_tag || _load_tag()).getName)(args, config);
-    reporter.step(1, 1, reporter.lang('ownerGetting', name));
-    const pkg = yield config.registries.npm.request(name, { unfiltered: true });
-    if (pkg) {
-      const owners = pkg.maintainers;
-      if (!owners || !owners.length) {
-        reporter.warn(reporter.lang('ownerNone'));
-      } else {
-        for (var _iterator = owners, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-          var _ref3;
-
-          if (_isArray) {
-            if (_i >= _iterator.length) break;
-            _ref3 = _iterator[_i++];
-          } else {
-            _i = _iterator.next();
-            if (_i.done) break;
-            _ref3 = _i.value;
-          }
-
-          const owner = _ref3;
-
-          reporter.info(`${owner.name} <${owner.email}>`);
-        }
-      }
-    } else {
-      reporter.error(reporter.lang('ownerGettingFailed'));
-    }
-
-    if (pkg) {
-      return true;
-    } else {
-      throw new Error();
-    }
-  });
-
-  return function list(_x6, _x7, _x8, _x9) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _validate;
-
-function _load_validate() {
-  return _validate = __webpack_require__(125);
-}
-
-var _tag;
-
-function _load_tag() {
-  return _tag = __webpack_require__(361);
-}
-
-var _login;
-
-function _load_login() {
-  return _login = __webpack_require__(107);
-}
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function remove(config, reporter, flags, args) {
-  return mutate(args, config, reporter, (username, name) => ({
-    info: reporter.lang('ownerRemoving', username, name),
-    success: reporter.lang('ownerRemoved'),
-    error: reporter.lang('ownerRemoveError')
-  }), (user, pkg) => {
-    let found = false;
-
-    pkg.maintainers = pkg.maintainers.filter(o => {
-      const match = o.name === user.name;
-      found = found || match;
-      return !match;
-    });
-
-    if (!found) {
-      reporter.error(reporter.lang('userNotAnOwner', user.name));
-    }
-
-    return found;
-  });
-}
-
-function setFlags(commander) {
-  commander.description('Manages package owners.');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('owner', {
-  add(config, reporter, flags, args) {
-    return mutate(args, config, reporter, (username, name) => ({
-      info: reporter.lang('ownerAdding', username, name),
-      success: reporter.lang('ownerAdded'),
-      error: reporter.lang('ownerAddingFailed')
-    }), (user, pkg) => {
-      for (var _iterator2 = pkg.maintainers, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref4 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref4 = _i2.value;
-        }
-
-        const owner = _ref4;
-
-        if (owner.name === user) {
-          reporter.error(reporter.lang('ownerAlready'));
-          return true;
-        }
-      }
-
-      pkg.maintainers.push(user);
-
-      return false;
-    });
-  },
-
-  rm(config, reporter, flags, args) {
-    reporter.warn(`\`yarn owner rm\` is deprecated. Please use \`yarn owner remove\`.`);
-    return remove(config, reporter, flags, args);
-  },
-
-  remove(config, reporter, flags, args) {
-    return remove(config, reporter, flags, args);
-  },
-
-  ls(config, reporter, flags, args) {
-    reporter.warn(`\`yarn owner ls\` is deprecated. Please use \`yarn owner list\`.`);
-    return list(config, reporter, flags, args);
-  },
-
-  list(config, reporter, flags, args) {
-    return list(config, reporter, flags, args);
-  }
-}, ['add <user> [[<@scope>/]<pkg>]', 'remove <user> [[<@scope>/]<pkg>]', 'list [<@scope>/]<pkg>']);
-
-const run = _buildSubCommands.run,
-      hasWrapper = _buildSubCommands.hasWrapper,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.hasWrapper = hasWrapper;
-exports.examples = examples;
-
-/***/ }),
-/* 540 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.setFlags = exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let fetchReleases = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, { includePrereleases = false } = {}) {
-    const token = process.env.GITHUB_TOKEN;
-    const tokenUrlParameter = token ? `?access_token=${token}` : '';
-    const request = yield config.requestManager.request({
-      url: `https://api.github.com/repos/yarnpkg/yarn/releases${tokenUrlParameter}`,
-      json: true
-    });
-
-    const releases = request.filter(function (release) {
-      if (release.draft) {
-        return false;
-      }
-
-      if (release.prerelease && !includePrereleases) {
-        return false;
-      }
-
-      // $FlowFixMe
-      release.version = semver.coerce(release.tag_name);
-
-      if (!release.version) {
-        return false;
-      }
-
-      if (!getBundleAsset(release)) {
-        return false;
-      }
-
-      return true;
-    });
-
-    releases.sort(function (a, b) {
-      // $FlowFixMe
-      return -semver.compare(a.version, b.version);
-    });
-
-    return releases;
-  });
-
-  return function fetchReleases(_x) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _rc;
-
-function _load_rc() {
-  return _rc = __webpack_require__(335);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = __webpack_require__(19);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const chalk = __webpack_require__(30);
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const semver = __webpack_require__(22);
-
-function getBundleAsset(release) {
-  return release.assets.find(asset => {
-    return asset.name.match(/^yarn-[0-9]+\.[0-9]+\.[0-9]+\.js$/);
-  });
-}
-
-function fetchBundle(config, url) {
-  return config.requestManager.request({
-    url,
-    buffer: true
-  });
-}
-
-function hasWrapper(flags, args) {
-  return false;
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('policies', {
-  setVersion(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      let range = args[0] || 'latest';
-      let allowRc = flags.rc;
-
-      reporter.log(`Resolving ${chalk.yellow(range)} to a url...`);
-
-      if (range === 'rc') {
-        range = 'latest';
-        allowRc = true;
-      }
-
-      if (range === 'latest') {
-        range = '*';
-      }
-
-      let bundleUrl;
-      let bundleVersion;
-
-      if (range === 'nightly' || range === 'nightlies') {
-        bundleUrl = 'https://nightly.yarnpkg.com/latest.js';
-        bundleVersion = 'nightly';
-      } else if (range === 'berry' || range === 'v2' || range === '2') {
-        bundleUrl = 'https://github.com/yarnpkg/berry/raw/master/packages/berry-cli/bin/berry.js';
-        bundleVersion = 'berry';
-      } else {
-        const releases = yield fetchReleases(config, {
-          includePrereleases: allowRc
-        });
-
-        const release = releases.find(function (release) {
-          // $FlowFixMe
-          return semver.satisfies(release.version, range);
-        });
-
-        if (!release) {
-          throw new Error(`Release not found: ${range}`);
-        }
-
-        const asset = getBundleAsset(release);
-        invariant(asset, 'The bundle asset should exist');
-
-        bundleUrl = asset.browser_download_url;
-        bundleVersion = release.version.version;
-      }
-
-      reporter.log(`Downloading ${chalk.green(bundleUrl)}...`);
-
-      const bundle = yield fetchBundle(config, bundleUrl);
-      const rc = (0, (_rc || _load_rc()).getRcConfigForFolder)(config.lockfileFolder);
-
-      const yarnPath = path.resolve(config.lockfileFolder, `.yarn/releases/yarn-${bundleVersion}.js`);
-      reporter.log(`Saving it into ${chalk.magenta(yarnPath)}...`);
-      yield (_fs || _load_fs()).mkdirp(path.dirname(yarnPath));
-      yield (_fs || _load_fs()).writeFile(yarnPath, bundle);
-      yield (_fs || _load_fs()).chmod(yarnPath, 0o755);
-
-      const rcPath = `${config.lockfileFolder}/.yarnrc`;
-      reporter.log(`Updating ${chalk.magenta(rcPath)}...`);
-      rc['yarn-path'] = path.relative(config.lockfileFolder, yarnPath);
-      yield (_fs || _load_fs()).writeFilePreservingEol(rcPath, `${(0, (_lockfile || _load_lockfile()).stringify)(rc)}\n`);
-
-      reporter.log(`Done!`);
-    })();
-  }
-});
-
-const run = _buildSubCommands.run,
-      setFlags = _buildSubCommands.setFlags,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.setFlags = setFlags;
-exports.examples = examples;
-
-/***/ }),
-/* 541 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let publish = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, pkg, flags, dir) {
-    let access = flags.access;
-
-    // if no access level is provided, check package.json for `publishConfig.access`
-    // see: https://docs.npmjs.com/files/package.json#publishconfig
-    if (!access && pkg && pkg.publishConfig && pkg.publishConfig.access) {
-      access = pkg.publishConfig.access;
-    }
-
-    // validate access argument
-    if (access && access !== 'public' && access !== 'restricted') {
-      throw new (_errors || _load_errors()).MessageError(config.reporter.lang('invalidAccess'));
-    }
-
-    // TODO this might modify package.json, do we need to reload it?
-    yield config.executeLifecycleScript('prepublish');
-    yield config.executeLifecycleScript('prepare');
-    yield config.executeLifecycleScript('prepublishOnly');
-    yield config.executeLifecycleScript('prepack');
-
-    // get tarball stream
-    const stat = yield (_fs || _load_fs()).lstat(dir);
-    let stream;
-    if (stat.isDirectory()) {
-      stream = yield (0, (_pack || _load_pack()).pack)(config);
-    } else if (stat.isFile()) {
-      stream = fs2.createReadStream(dir);
-    } else {
-      throw new Error("Don't know how to handle this file type");
-    }
-    const buffer = yield new Promise(function (resolve, reject) {
-      const data = [];
-      invariant(stream, 'expected stream');
-      stream.on('data', data.push.bind(data)).on('end', function () {
-        return resolve(Buffer.concat(data));
-      }).on('error', reject);
-    });
-
-    yield config.executeLifecycleScript('postpack');
-
-    // copy normalized package and remove internal keys as they may be sensitive or yarn specific
-    pkg = Object.assign({}, pkg);
-    for (const key in pkg) {
-      if (key[0] === '_') {
-        delete pkg[key];
-      }
-    }
-
-    const tag = flags.tag || 'latest';
-    const tbName = `${pkg.name}-${pkg.version}.tgz`;
-    const tbURI = `${pkg.name}/-/${tbName}`;
-
-    // create body
-    const root = {
-      _id: pkg.name,
-      access,
-      name: pkg.name,
-      description: pkg.description,
-      'dist-tags': {
-        [tag]: pkg.version
-      },
-      versions: {
-        [pkg.version]: pkg
-      },
-      readme: pkg.readme || '',
-      _attachments: {
-        [tbName]: {
-          content_type: 'application/octet-stream',
-          data: buffer.toString('base64'),
-          length: buffer.length
-        }
-      }
-    };
-
-    pkg._id = `${pkg.name}@${pkg.version}`;
-    pkg.dist = pkg.dist || {};
-    pkg.dist.shasum = crypto.createHash('sha1').update(buffer).digest('hex');
-    pkg.dist.integrity = ssri.fromData(buffer).toString();
-
-    const registry = String(config.getOption('registry'));
-    pkg.dist.tarball = url.resolve(registry, tbURI).replace(/^https:\/\//, 'http://');
-
-    // publish package
-    try {
-      yield config.registries.npm.request((_npmRegistry || _load_npmRegistry()).default.escapeName(pkg.name), {
-        registry: pkg && pkg.publishConfig && pkg.publishConfig.registry,
-        method: 'PUT',
-        body: root
-      });
-    } catch (error) {
-      throw new (_errors || _load_errors()).MessageError(config.reporter.lang('publishFail', error.message));
-    }
-
-    yield config.executeLifecycleScript('publish');
-    yield config.executeLifecycleScript('postpublish');
-  });
-
-  return function publish(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    // validate arguments
-    const dir = args[0] ? (_path || _load_path()).default.resolve(config.cwd, args[0]) : config.cwd;
-    if (args.length > 1) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('tooManyArguments', 1));
-    }
-    if (!(yield (_fs || _load_fs()).exists(dir))) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('unknownFolderOrTarball'));
-    }
-
-    const stat = yield (_fs || _load_fs()).lstat(dir);
-    let publishPath = dir;
-    if (stat.isDirectory()) {
-      config.cwd = (_path || _load_path()).default.resolve(dir);
-      publishPath = config.cwd;
-    }
-
-    // validate package fields that are required for publishing
-    // $FlowFixMe
-    const pkg = yield config.readRootManifest();
-    if (pkg.private) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('publishPrivate'));
-    }
-    if (!pkg.name) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noName'));
-    }
-
-    let registry = '';
-
-    if (pkg && pkg.publishConfig && pkg.publishConfig.registry) {
-      registry = pkg.publishConfig.registry;
-    }
-
-    reporter.step(1, 4, reporter.lang('bumpingVersion'));
-    const commitVersion = yield (0, (_version || _load_version()).setVersion)(config, reporter, flags, [], false);
-
-    //
-    reporter.step(2, 4, reporter.lang('loggingIn'));
-    const revoke = yield (0, (_login || _load_login()).getToken)(config, reporter, pkg.name, flags, registry);
-
-    //
-    reporter.step(3, 4, reporter.lang('publishing'));
-    yield publish(config, pkg, flags, publishPath);
-    yield commitVersion();
-    reporter.success(reporter.lang('published'));
-
-    //
-    reporter.step(4, 4, reporter.lang('revokingToken'));
-    yield revoke();
-  });
-
-  return function run(_x5, _x6, _x7, _x8) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _version;
-
-function _load_version() {
-  return _version = __webpack_require__(363);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _pack;
-
-function _load_pack() {
-  return _pack = __webpack_require__(166);
-}
-
-var _login;
-
-function _load_login() {
-  return _login = __webpack_require__(107);
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const crypto = __webpack_require__(11);
-const url = __webpack_require__(24);
-const fs2 = __webpack_require__(5);
-const ssri = __webpack_require__(65);
-
-function setFlags(commander) {
-  (0, (_version || _load_version()).setFlags)(commander);
-  commander.description('Publishes a package to the npm registry.');
-  commander.usage('publish [<tarball>|<folder>] [--tag <tag>] [--access <public|restricted>]');
-  commander.option('--access [access]', 'access');
-  commander.option('--tag [tag]', 'tag');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 542 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.hasWrapper = exports.run = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let removeTeamUser = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (parts, config, reporter) {
-    reporter.step(2, 3, reporter.lang('teamRemovingUser'));
-    reporter.inspect((yield config.registries.npm.request(`team/${parts.scope}/${parts.team}/user`, {
-      method: 'DELETE',
-      body: {
-        user: parts.user
-      }
-    })));
-    return true;
-  });
-
-  return function removeTeamUser(_x5, _x6, _x7) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let list = (() => {
-  var _ref3 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (parts, config, reporter) {
-    reporter.step(2, 3, reporter.lang('teamListing'));
-    const uriParams = '?format=cli';
-    if (parts.team) {
-      reporter.inspect((yield config.registries.npm.request(`team/${parts.scope}/${parts.team}/user${uriParams}`)));
-    } else {
-      reporter.inspect((yield config.registries.npm.request(`org/${parts.scope}/team${uriParams}`)));
-    }
-    return true;
-  });
-
-  return function list(_x8, _x9, _x10) {
-    return _ref3.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _login;
-
-function _load_login() {
-  return _login = __webpack_require__(107);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function explodeScopeTeam(arg, requireTeam, reporter) {
-  var _arg$split = arg.split(':');
-
-  const scope = _arg$split[0],
-        team = _arg$split[1],
-        parts = _arg$split.slice(2);
-
-  if (parts.length) {
-    return false;
-  }
-
-  if (requireTeam && !team) {
-    return false;
-  }
-
-  return {
-    scope: scope || '',
-    team: team || '',
-    user: ''
-  };
-}
-
-function warnDeprecation(reporter, deprecationWarning) {
-  const command = 'yarn team';
-  reporter.warn(reporter.lang('deprecatedCommand', `${command} ${deprecationWarning.deprecatedCommand}`, `${command} ${deprecationWarning.currentCommand}`));
-}
-
-function wrapRequired(callback, requireTeam, deprecationInfo) {
-  return (() => {
-    var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-      if (deprecationInfo) {
-        warnDeprecation(reporter, deprecationInfo);
-      }
-
-      if (!args.length) {
-        return false;
-      }
-
-      const parts = explodeScopeTeam(args[0], requireTeam, reporter);
-      if (!parts) {
-        return false;
-      }
-
-      reporter.step(1, 3, reporter.lang('loggingIn'));
-      const revoke = yield (0, (_login || _load_login()).getToken)(config, reporter);
-
-      const res = yield callback(parts, config, reporter, flags, args);
-      if (!res) {
-        return res;
-      }
-
-      reporter.step(3, 3, reporter.lang('revokingToken'));
-      yield revoke();
-      return true;
-    });
-
-    return function (_x, _x2, _x3, _x4) {
-      return _ref.apply(this, arguments);
-    };
-  })();
-}
-
-function wrapRequiredTeam(callback, requireTeam = true, subCommandDeprecated) {
-  return wrapRequired(function (parts, config, reporter, flags, args) {
-    if (args.length === 1) {
-      return callback(parts, config, reporter, flags, args);
-    } else {
-      return false;
-    }
-  }, requireTeam, subCommandDeprecated);
-}
-
-function wrapRequiredUser(callback, subCommandDeprecated) {
-  return wrapRequired(function (parts, config, reporter, flags, args) {
-    if (args.length === 2) {
-      return callback((0, (_extends2 || _load_extends()).default)({
-        user: args[1]
-      }, parts), config, reporter, flags, args);
-    } else {
-      return false;
-    }
-  }, true, subCommandDeprecated);
-}
-
-function setFlags(commander) {
-  commander.description('Maintain team memberships');
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('team', {
-  create: wrapRequiredTeam((() => {
-    var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (parts, config, reporter, flags, args) {
-      reporter.step(2, 3, reporter.lang('teamCreating'));
-      reporter.inspect((yield config.registries.npm.request(`team/${parts.scope}`, {
-        method: 'PUT',
-        body: {
-          team: parts.team
-        }
-      })));
-      return true;
-    });
-
-    return function (_x11, _x12, _x13, _x14, _x15) {
-      return _ref4.apply(this, arguments);
-    };
-  })()),
-
-  destroy: wrapRequiredTeam((() => {
-    var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (parts, config, reporter, flags, args) {
-      reporter.step(2, 3, reporter.lang('teamRemoving'));
-      reporter.inspect((yield config.registries.npm.request(`team/${parts.scope}/${parts.team}`, {
-        method: 'DELETE'
-      })));
-      return true;
-    });
-
-    return function (_x16, _x17, _x18, _x19, _x20) {
-      return _ref5.apply(this, arguments);
-    };
-  })()),
-
-  add: wrapRequiredUser((() => {
-    var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (parts, config, reporter, flags, args) {
-      reporter.step(2, 3, reporter.lang('teamAddingUser'));
-      reporter.inspect((yield config.registries.npm.request(`team/${parts.scope}/${parts.team}/user`, {
-        method: 'PUT',
-        body: {
-          user: parts.user
-        }
-      })));
-      return true;
-    });
-
-    return function (_x21, _x22, _x23, _x24, _x25) {
-      return _ref6.apply(this, arguments);
-    };
-  })()),
-
-  rm: wrapRequiredUser(function (parts, config, reporter, flags, args) {
-    removeTeamUser(parts, config, reporter);
-  }, {
-    deprecatedCommand: 'rm',
-    currentCommand: 'remove'
-  }),
-
-  remove: wrapRequiredUser(function (parts, config, reporter, flags, args) {
-    removeTeamUser(parts, config, reporter);
-  }),
-
-  ls: wrapRequiredTeam(function (parts, config, reporter, flags, args) {
-    list(parts, config, reporter);
-  }, false, {
-    deprecatedCommand: 'ls',
-    currentCommand: 'list'
-  }),
-
-  list: wrapRequiredTeam(function (parts, config, reporter, flags, args) {
-    list(parts, config, reporter);
-  }, false)
-}, ['create <scope:team>', 'destroy <scope:team>', 'add <scope:team> <user>', 'remove <scope:team> <user>', 'list <scope>|<scope:team>']);
-
-const run = _buildSubCommands.run,
-      hasWrapper = _buildSubCommands.hasWrapper,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.hasWrapper = hasWrapper;
-exports.examples = examples;
-
-/***/ }),
-/* 543 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (args.length) {
-      for (var _iterator = args, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref2 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref2 = _i.value;
-        }
-
-        const name = _ref2;
-
-        const linkLoc = path.join(config.linkFolder, name);
-        if (yield (_fs || _load_fs()).exists(linkLoc)) {
-          yield (_fs || _load_fs()).unlink(path.join((yield (0, (_link || _load_link()).getRegistryFolder)(config, name)), name));
-          reporter.success(reporter.lang('linkDisusing', name));
-          reporter.info(reporter.lang('linkDisusingMessage', name));
-        } else {
-          throw new (_errors || _load_errors()).MessageError(reporter.lang('linkMissing', name));
-        }
-      }
-    } else {
-      // remove from registry
-      const manifest = yield config.readRootManifest();
-      const name = manifest.name;
-      if (!name) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('unknownPackageName'));
-      }
-
-      const linkLoc = path.join(config.linkFolder, name);
-      if (yield (_fs || _load_fs()).exists(linkLoc)) {
-        // If there is a `bin` defined in the package.json,
-        // link each bin to the global bin
-        if (manifest.bin) {
-          const globalBinFolder = yield (0, (_global || _load_global()).getBinFolder)(config, flags);
-          for (const binName in manifest.bin) {
-            const binDestLoc = path.join(globalBinFolder, binName);
-            if (yield (_fs || _load_fs()).exists(binDestLoc)) {
-              yield (_fs || _load_fs()).unlink(binDestLoc);
-              if (process.platform === 'win32') {
-                yield (_fs || _load_fs()).unlink(binDestLoc + '.cmd');
-              }
-            }
-          }
-        }
-
-        yield (_fs || _load_fs()).unlink(linkLoc);
-
-        reporter.success(reporter.lang('linkUnregistered', name));
-        reporter.info(reporter.lang('linkUnregisteredMessage', name));
-      } else {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('linkMissing', name));
-      }
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _link;
-
-function _load_link() {
-  return _link = __webpack_require__(357);
-}
-
-var _global;
-
-function _load_global() {
-  return _global = __webpack_require__(121);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-function setFlags(commander) {
-  commander.description('Unlink a previously created symlink for a package.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 544 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.clearAll = exports.clearSome = exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (!config.plugnplayEnabled) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('unplugDisabled'));
-    }
-    if (!args.length && flags.clear) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('tooFewArguments', 1));
-    }
-    if (args.length && flags.clearAll) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('noArguments'));
-    }
-
-    if (flags.clearAll) {
-      yield clearAll(config);
-    } else if (flags.clear) {
-      yield clearSome(config, new Set(args));
-    } else if (args.length > 0) {
-      const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-      yield (0, (_install || _load_install()).wrapLifecycle)(config, flags, (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-        const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-        install.linker.unplugged = args;
-        yield install.init();
-      }));
-    }
-
-    const unpluggedPackageFolders = yield config.listUnpluggedPackageFolders();
-
-    for (var _iterator = unpluggedPackageFolders.values(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref3 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref3 = _i.value;
-      }
-
-      const target = _ref3;
-
-      reporter.log(target, { force: true });
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let clearSome = exports.clearSome = (() => {
-  var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, filters) {
-    const unpluggedPackageFolders = yield config.listUnpluggedPackageFolders();
-    const removeList = [];
-
-    for (var _iterator2 = unpluggedPackageFolders.entries(), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref6;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref6 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref6 = _i2.value;
-      }
-
-      const _ref5 = _ref6;
-      const unpluggedName = _ref5[0];
-      const target = _ref5[1];
-
-      var _ref8 = yield (_fs || _load_fs()).readJson(path.join(target, 'package.json'));
-
-      const name = _ref8.name;
-
-      const toBeRemoved = filters.has(name);
-
-      if (toBeRemoved) {
-        removeList.push(path.join(config.getUnpluggedPath(), unpluggedName));
-      }
-    }
-
-    if (removeList.length === unpluggedPackageFolders.size) {
-      yield (_fs || _load_fs()).unlink(config.getUnpluggedPath());
-    } else {
-      for (var _iterator3 = removeList, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref7 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref7 = _i3.value;
-        }
-
-        const unpluggedPackagePath = _ref7;
-
-        yield (_fs || _load_fs()).unlink(unpluggedPackagePath);
-      }
-    }
-  });
-
-  return function clearSome(_x5, _x6) {
-    return _ref4.apply(this, arguments);
-  };
-})();
-
-let clearAll = exports.clearAll = (() => {
-  var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config) {
-    yield (_fs || _load_fs()).unlink(config.getUnpluggedPath());
-  });
-
-  return function clearAll(_x7) {
-    return _ref9.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-exports.setFlags = setFlags;
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-function hasWrapper(commander) {
-  return true;
-}
-
-function setFlags(commander) {
-  commander.description('Temporarily copies a package (with an optional @range suffix) outside of the global cache for debugging purposes');
-  commander.usage('unplug [packages ...] [flags]');
-  commander.option('--clear', 'Delete the selected packages');
-  commander.option('--clear-all', 'Delete all unplugged packages');
-}
-
-/***/ }),
-/* 545 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const versions = { yarn: (_yarnVersion || _load_yarnVersion()).version };
-
-    const pkg = yield config.maybeReadManifest(config.cwd);
-    if (pkg && pkg.name && pkg.version) {
-      versions[pkg.name] = pkg.version;
-    }
-
-    Object.assign(versions, process.versions);
-
-    reporter.inspect(versions);
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _yarnVersion;
-
-function _load_yarnVersion() {
-  return _yarnVersion = __webpack_require__(120);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function setFlags(commander) {
-  commander.description('Displays version information of currently installed Yarn, Node.js, and its dependencies.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 546 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = exports.requireLockfile = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let cleanQuery = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, query) {
-    // if a location was passed then turn it into a hash query
-    if (path.isAbsolute(query) && (yield (_fs || _load_fs()).exists(query))) {
-      // absolute path
-      query = path.relative(config.cwd, query);
-    }
-
-    // remove references to node_modules with hashes
-    query = query.replace(/([\\/]|^)node_modules[\\/]/g, '#');
-
-    // remove trailing hashes
-    query = query.replace(/^#+/g, '');
-
-    // remove trailing paths from each part of the query, skip second part of path for scoped packages
-    let queryParts = query.split('#');
-    queryParts = queryParts.map(function (part) {
-      let parts = part.split(/[\\/]/g);
-
-      if (part[0] === '@') {
-        parts = parts.slice(0, 2);
-      } else {
-        parts = parts.slice(0, 1);
-      }
-
-      return parts.join('/');
-    });
-    query = queryParts.join('#');
-
-    return query;
-  });
-
-  return function cleanQuery(_x, _x2) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let getPackageSize = (() => {
-  var _ref2 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (tuple) {
-    const loc = tuple[0];
-
-
-    const files = yield (_fs || _load_fs()).walk(loc, null, new Set([(_constants || _load_constants()).METADATA_FILENAME, (_constants || _load_constants()).TARBALL_FILENAME]));
-
-    const sizes = yield Promise.all(files.map(function (walkFile) {
-      return (_fs || _load_fs()).getFileSizeOnDisk(walkFile.absolute);
-    }));
-
-    return sum(sizes);
-  });
-
-  return function getPackageSize(_x3) {
-    return _ref2.apply(this, arguments);
-  };
-})();
-
-let run = exports.run = (() => {
-  var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    if (!args.length) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('missingWhyDependency'));
-    }
-    if (args.length > 1) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('tooManyArguments', 1));
-    }
-
-    const query = yield cleanQuery(config, args[0]);
-
-    reporter.step(1, 4, reporter.lang('whyStart', args[0]), emoji.get('thinking_face'));
-
-    // init
-    reporter.step(2, 4, reporter.lang('whyInitGraph'), emoji.get('truck'));
-    const lockfile = yield (_lockfile || _load_lockfile()).default.fromDirectory(config.lockfileFolder, reporter);
-    const install = new (_install || _load_install()).Install(flags, config, reporter, lockfile);
-
-    var _ref7 = yield install.fetchRequestFromCwd();
-
-    const depRequests = _ref7.requests,
-          patterns = _ref7.patterns,
-          workspaceLayout = _ref7.workspaceLayout;
-
-    yield install.resolver.init(depRequests, {
-      isFlat: install.flags.flat,
-      isFrozen: install.flags.frozenLockfile,
-      workspaceLayout
-    });
-    const hoisted = yield install.linker.getFlatHoistedTree(patterns);
-
-    // finding
-    reporter.step(3, 4, reporter.lang('whyFinding'), emoji.get('mag'));
-
-    const matches = queryWhy(query, hoisted);
-
-    if (matches.length <= 0) {
-      reporter.error(reporter.lang('whyUnknownMatch'));
-      return;
-    }
-
-    const processMatch = (() => {
-      var _ref8 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (match) {
-        const matchInfo = match[1];
-
-        const matchRef = matchInfo.pkg._reference;
-        invariant(matchRef, 'expected reference');
-
-        const distinctMatchPatterns = new Set(matchRef.patterns);
-        const reasons = [];
-
-        // reason: dependency of these modules
-        if (matchInfo.originalParentPath.length > 0) {
-          reasons.push({
-            type: 'whyDependedOn',
-            typeSimple: 'whyDependedOnSimple',
-            value: toStandardPathString(matchInfo.originalParentPath)
-          });
-        }
-
-        // reason: exists in manifest
-        let rootType;
-        for (var _iterator3 = distinctMatchPatterns, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-          var _ref9;
-
-          if (_isArray3) {
-            if (_i3 >= _iterator3.length) break;
-            _ref9 = _iterator3[_i3++];
-          } else {
-            _i3 = _iterator3.next();
-            if (_i3.done) break;
-            _ref9 = _i3.value;
-          }
-
-          const pattern = _ref9;
-
-          rootType = install.rootPatternsToOrigin[pattern];
-          if (rootType) {
-            reasons.push({
-              type: 'whySpecified',
-              typeSimple: 'whySpecifiedSimple',
-              value: rootType
-            });
-          }
-        }
-
-        // reason: this is hoisted from these modules
-        for (var _iterator4 = matchInfo.previousPaths, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref10;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref10 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref10 = _i4.value;
-          }
-
-          const path = _ref10;
-
-          reasons.push({
-            type: 'whyHoistedFrom',
-            typeSimple: 'whyHoistedFromSimple',
-            value: toStandardPathString(path)
-          });
-        }
-
-        // package sizes
-        let packageSize = 0;
-        let directSizes = [];
-        let transitiveSizes = [];
-        try {
-          packageSize = yield getPackageSize(match);
-        } catch (e) {}
-
-        const dependencies = Array.from(collect(hoisted, new Set(), match));
-        const transitiveDependencies = Array.from(collect(hoisted, new Set(), match, { recursive: true }));
-
-        try {
-          directSizes = yield Promise.all(dependencies.map(getPackageSize));
-          transitiveSizes = yield Promise.all(transitiveDependencies.map(getPackageSize));
-        } catch (e) {}
-
-        const transitiveKeys = new Set(transitiveDependencies.map(function ([, info]) {
-          return info.key;
-        }));
-        const sharedDependencies = getSharedDependencies(hoisted, transitiveKeys);
-
-        // prepare output: populate reporter
-        reporter.info(reporter.lang('whyMatch', `${matchInfo.key}@${matchInfo.pkg.version}`));
-        //
-        // reason: hoisted/nohoist
-        if (matchInfo.isNohoist) {
-          reasons.push({
-            type: 'whyNotHoisted',
-            typeSimple: 'whyNotHoistedSimple',
-            value: matchInfo.nohoistList
-          });
-        } else if (query === matchInfo.originalKey) {
-          reporter.info(reporter.lang('whyHoistedTo', matchInfo.key));
-        }
-
-        if (reasons.length === 1) {
-          reporter.info(reporter.lang(reasons[0].typeSimple, reasons[0].value));
-        } else if (reasons.length > 1) {
-          reporter.info(reporter.lang('whyReasons'));
-          reporter.list('reasons', reasons.map(function (reason) {
-            return reporter.lang(reason.type, reason.value);
-          }));
-        } else {
-          reporter.error(reporter.lang('whyWhoKnows'));
-        }
-
-        if (packageSize) {
-          // stats: file size of this dependency without any dependencies
-          reporter.info(reporter.lang('whyDiskSizeWithout', bytes(packageSize)));
-
-          // stats: file size of this dependency including dependencies that aren't shared
-          reporter.info(reporter.lang('whyDiskSizeUnique', bytes(packageSize + sum(directSizes))));
-
-          // stats: file size of this dependency including dependencies
-          reporter.info(reporter.lang('whyDiskSizeTransitive', bytes(packageSize + sum(transitiveSizes))));
-
-          // stats: shared transitive dependencies
-          reporter.info(reporter.lang('whySharedDependencies', sharedDependencies.size));
-        }
-      });
-
-      return function processMatch(_x8) {
-        return _ref8.apply(this, arguments);
-      };
-    })();
-
-    reporter.step(4, 4, reporter.lang('whyCalculating'), emoji.get('aerial_tramway'));
-    for (var _iterator5 = matches, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray5) {
-        if (_i5 >= _iterator5.length) break;
-        _ref11 = _iterator5[_i5++];
-      } else {
-        _i5 = _iterator5.next();
-        if (_i5.done) break;
-        _ref11 = _i5.value;
-      }
-
-      const match = _ref11;
-
-      yield processMatch(match);
-    }
-  });
-
-  return function run(_x4, _x5, _x6, _x7) {
-    return _ref6.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-exports.queryWhy = queryWhy;
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const requireLockfile = exports.requireLockfile = true;
-
-const invariant = __webpack_require__(9);
-const bytes = __webpack_require__(596);
-const emoji = __webpack_require__(302);
-const path = __webpack_require__(0);
-
-function sum(array) {
-  return array.length ? array.reduce((a, b) => a + b, 0) : 0;
-}
-
-function collect(hoistManifests, allDependencies, dependency, { recursive } = { recursive: false }) {
-  const depInfo = dependency[1];
-
-  const deps = depInfo.pkg.dependencies;
-
-  if (!deps) {
-    return allDependencies;
-  }
-
-  const dependencyKeys = new Set(Object.keys(deps));
-  const directDependencies = [];
-
-  for (var _iterator = hoistManifests, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref3;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref3 = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref3 = _i.value;
-    }
-
-    const dep = _ref3;
-    const info = dep[1];
-
-
-    if (!allDependencies.has(dep) && dependencyKeys.has(info.key)) {
-      allDependencies.add(dep);
-      directDependencies.push(dep);
-    }
-  }
-
-  if (recursive) {
-    directDependencies.forEach(dependency => collect(hoistManifests, allDependencies, dependency, { recursive: true }));
-  }
-
-  return allDependencies;
-}
-
-function getSharedDependencies(hoistManifests, transitiveKeys) {
-  const sharedDependencies = new Set();
-  for (var _iterator2 = hoistManifests, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref5;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref5 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref5 = _i2.value;
-    }
-
-    const _ref4 = _ref5;
-    const info = _ref4[1];
-
-    if (!transitiveKeys.has(info.key) && info.pkg.dependencies) {
-      Object.keys(info.pkg.dependencies).forEach(dependency => {
-        if (transitiveKeys.has(dependency) && !sharedDependencies.has(dependency)) {
-          sharedDependencies.add(dependency);
-        }
-      });
-    }
-  }
-  return sharedDependencies;
-}
-
-function setFlags(commander) {
-  commander.description('Identifies why a package has been installed, detailing which other packages depend on it.');
-}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-// to conform to the current standard '#' as package tree separator
-function toStandardPathString(pathString) {
-  const str = pathString.replace(/\//g, '#');
-  if (str[0] === '#') {
-    return str.slice(1);
-  }
-  return str;
-}
-
-function queryWhy(pattern, hoisted) {
-  const nohoistPattern = `#${pattern}`;
-  const found = [];
-  for (var _iterator6 = hoisted, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-    var _ref13;
-
-    if (_isArray6) {
-      if (_i6 >= _iterator6.length) break;
-      _ref13 = _iterator6[_i6++];
-    } else {
-      _i6 = _iterator6.next();
-      if (_i6.done) break;
-      _ref13 = _i6.value;
-    }
-
-    const _ref12 = _ref13;
-    const loc = _ref12[0];
-    const info = _ref12[1];
-
-    if (info.key === pattern || info.previousPaths.indexOf(pattern) >= 0 || info.key.endsWith(nohoistPattern)) {
-      found.push([loc, info]);
-    }
-  }
-  return found;
-}
-
-/***/ }),
-/* 547 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.run = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let run = exports.run = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const workspaceRootFolder = config.workspaceRootFolder;
-
-
-    if (!workspaceRootFolder) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceRootNotFound', config.cwd));
-    }
-
-    if (flags.originalArgs < 1) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceMissingWorkspace'));
-    }
-
-    if (flags.originalArgs < 2) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceMissingCommand'));
-    }
-
-    const manifest = yield config.findManifest(workspaceRootFolder, false);
-    invariant(manifest && manifest.workspaces, 'We must find a manifest with a "workspaces" property');
-
-    const workspaces = yield config.resolveWorkspaces(workspaceRootFolder, manifest);
-
-    var _ref2 = flags.originalArgs || [];
-
-    const workspaceName = _ref2[0],
-          rest = _ref2.slice(1);
-
-    if (!Object.prototype.hasOwnProperty.call(workspaces, workspaceName)) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceUnknownWorkspace', workspaceName));
-    }
-
-    const workspace = workspaces[workspaceName];
-
-    try {
-      yield (_child || _load_child()).spawn((_constants || _load_constants()).NODE_BIN_PATH, [(_constants || _load_constants()).YARN_BIN_PATH, ...rest], {
-        stdio: 'inherit',
-        cwd: workspace.loc
-      });
-    } catch (err) {
-      throw err;
-    }
-  });
-
-  return function run(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.setFlags = setFlags;
-exports.hasWrapper = hasWrapper;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-function setFlags(commander) {}
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-/***/ }),
-/* 548 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.examples = exports.setFlags = exports.run = exports.runScript = exports.info = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let info = exports.info = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const workspaceRootFolder = config.workspaceRootFolder;
-
-
-    if (!workspaceRootFolder) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceRootNotFound', config.cwd));
-    }
-
-    const manifest = yield config.findManifest(workspaceRootFolder, false);
-    invariant(manifest && manifest.workspaces, 'We must find a manifest with a "workspaces" property');
-
-    const workspaces = yield config.resolveWorkspaces(workspaceRootFolder, manifest);
-
-    const publicData = {};
-
-    for (var _iterator = Object.keys(workspaces), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref2 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref2 = _i.value;
-      }
-
-      const workspaceName = _ref2;
-      var _workspaces$workspace = workspaces[workspaceName];
-      const loc = _workspaces$workspace.loc,
-            manifest = _workspaces$workspace.manifest;
-
-
-      const workspaceDependencies = new Set();
-      const mismatchedWorkspaceDependencies = new Set();
-
-      for (var _iterator2 = (_constants || _load_constants()).DEPENDENCY_TYPES, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const dependencyType = _ref3;
-
-        if (dependencyType !== 'peerDependencies') {
-          for (var _iterator3 = Object.keys(manifest[dependencyType] || {}), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-            var _ref4;
-
-            if (_isArray3) {
-              if (_i3 >= _iterator3.length) break;
-              _ref4 = _iterator3[_i3++];
-            } else {
-              _i3 = _iterator3.next();
-              if (_i3.done) break;
-              _ref4 = _i3.value;
-            }
-
-            const dependencyName = _ref4;
-
-            if (Object.prototype.hasOwnProperty.call(workspaces, dependencyName)) {
-              invariant(manifest && manifest[dependencyType], 'The request should exist');
-              const requestedRange = manifest[dependencyType][dependencyName];
-              if (semver.satisfies(workspaces[dependencyName].manifest.version, requestedRange)) {
-                workspaceDependencies.add(dependencyName);
-              } else {
-                mismatchedWorkspaceDependencies.add(dependencyName);
-              }
-            }
-          }
-        }
-      }
-
-      publicData[workspaceName] = {
-        location: path.relative(config.lockfileFolder, loc).replace(/\\/g, '/'),
-        workspaceDependencies: Array.from(workspaceDependencies),
-        mismatchedWorkspaceDependencies: Array.from(mismatchedWorkspaceDependencies)
-      };
-    }
-
-    reporter.log(JSON.stringify(publicData, null, 2), { force: true });
-  });
-
-  return function info(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let runScript = exports.runScript = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, reporter, flags, args) {
-    const workspaceRootFolder = config.workspaceRootFolder;
-
-
-    if (!workspaceRootFolder) {
-      throw new (_errors || _load_errors()).MessageError(reporter.lang('workspaceRootNotFound', config.cwd));
-    }
-
-    const manifest = yield config.findManifest(workspaceRootFolder, false);
-    invariant(manifest && manifest.workspaces, 'We must find a manifest with a "workspaces" property');
-
-    const workspaces = yield config.resolveWorkspaces(workspaceRootFolder, manifest);
-
-    try {
-      var _ref6 = flags.originalArgs || [];
-
-      const _ = _ref6[0],
-            rest = _ref6.slice(1);
-
-      for (var _iterator4 = Object.keys(workspaces), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray4) {
-          if (_i4 >= _iterator4.length) break;
-          _ref7 = _iterator4[_i4++];
-        } else {
-          _i4 = _iterator4.next();
-          if (_i4.done) break;
-          _ref7 = _i4.value;
-        }
-
-        const workspaceName = _ref7;
-        const loc = workspaces[workspaceName].loc;
-
-        reporter.log(`${os.EOL}> ${workspaceName}`);
-        yield (_child || _load_child()).spawn((_constants2 || _load_constants2()).NODE_BIN_PATH, [(_constants2 || _load_constants2()).YARN_BIN_PATH, ...rest], {
-          stdio: 'inherit',
-          cwd: loc
-        });
-      }
-    } catch (err) {
-      throw err;
-    }
-  });
-
-  return function runScript(_x5, _x6, _x7, _x8) {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-exports.hasWrapper = hasWrapper;
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _buildSubCommands2;
-
-function _load_buildSubCommands() {
-  return _buildSubCommands2 = _interopRequireDefault(__webpack_require__(59));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _child;
-
-function _load_child() {
-  return _child = _interopRequireWildcard(__webpack_require__(58));
-}
-
-var _constants2;
-
-function _load_constants2() {
-  return _constants2 = __webpack_require__(8);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-const os = __webpack_require__(46);
-const semver = __webpack_require__(22);
-
-function hasWrapper(commander, args) {
-  return true;
-}
-
-var _buildSubCommands = (0, (_buildSubCommands2 || _load_buildSubCommands()).default)('workspaces', {
-  info(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield info(config, reporter, flags, args);
-    })();
-  },
-  run(config, reporter, flags, args) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield runScript(config, reporter, flags, args);
-    })();
-  }
-});
-
-const run = _buildSubCommands.run,
-      setFlags = _buildSubCommands.setFlags,
-      examples = _buildSubCommands.examples;
-exports.run = run;
-exports.setFlags = setFlags;
-exports.examples = examples;
-
-/***/ }),
-/* 549 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/* WEBPACK VAR INJECTION */(function(module) {
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.autoRun = exports.main = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let main = exports.main = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({
-    startArgs,
-    args,
-    endArgs
-  }) {
-    const collect = function collect(val, acc) {
-      acc.push(val);
-      return acc;
-    };
-
-    (0, (_loudRejection || _load_loudRejection()).default)();
-    (0, (_signalHandler || _load_signalHandler()).default)();
-
-    // set global options
-    (_commander || _load_commander()).default.version((_yarnVersion || _load_yarnVersion()).version, '-v, --version');
-    (_commander || _load_commander()).default.usage('[command] [flags]');
-    (_commander || _load_commander()).default.option('--no-default-rc', 'prevent Yarn from automatically detecting yarnrc and npmrc files');
-    (_commander || _load_commander()).default.option('--use-yarnrc <path>', 'specifies a yarnrc file that Yarn should use (.yarnrc only, not .npmrc)', collect, []);
-    (_commander || _load_commander()).default.option('--verbose', 'output verbose messages on internal operations');
-    (_commander || _load_commander()).default.option('--offline', 'trigger an error if any required dependencies are not available in local cache');
-    (_commander || _load_commander()).default.option('--prefer-offline', 'use network only if dependencies are not available in local cache');
-    (_commander || _load_commander()).default.option('--enable-pnp, --pnp', "enable the Plug'n'Play installation");
-    (_commander || _load_commander()).default.option('--disable-pnp', "disable the Plug'n'Play installation");
-    (_commander || _load_commander()).default.option('--strict-semver');
-    (_commander || _load_commander()).default.option('--json', 'format Yarn log messages as lines of JSON (see jsonlines.org)');
-    (_commander || _load_commander()).default.option('--ignore-scripts', "don't run lifecycle scripts");
-    (_commander || _load_commander()).default.option('--har', 'save HAR output of network traffic');
-    (_commander || _load_commander()).default.option('--ignore-platform', 'ignore platform checks');
-    (_commander || _load_commander()).default.option('--ignore-engines', 'ignore engines check');
-    (_commander || _load_commander()).default.option('--ignore-optional', 'ignore optional dependencies');
-    (_commander || _load_commander()).default.option('--force', 'install and build packages even if they were built before, overwrite lockfile');
-    (_commander || _load_commander()).default.option('--skip-integrity-check', 'run install without checking if node_modules is installed');
-    (_commander || _load_commander()).default.option('--check-files', 'install will verify file tree of packages for consistency');
-    (_commander || _load_commander()).default.option('--no-bin-links', "don't generate bin links when setting up packages");
-    (_commander || _load_commander()).default.option('--flat', 'only allow one version of a package');
-    (_commander || _load_commander()).default.option('--prod, --production [prod]', '', (_conversion || _load_conversion()).boolify);
-    (_commander || _load_commander()).default.option('--no-lockfile', "don't read or generate a lockfile");
-    (_commander || _load_commander()).default.option('--pure-lockfile', "don't generate a lockfile");
-    (_commander || _load_commander()).default.option('--frozen-lockfile', "don't generate a lockfile and fail if an update is needed");
-    (_commander || _load_commander()).default.option('--update-checksums', 'update package checksums from current repository');
-    (_commander || _load_commander()).default.option('--link-duplicates', 'create hardlinks to the repeated modules in node_modules');
-    (_commander || _load_commander()).default.option('--link-folder <path>', 'specify a custom folder to store global links');
-    (_commander || _load_commander()).default.option('--global-folder <path>', 'specify a custom folder to store global packages');
-    (_commander || _load_commander()).default.option('--modules-folder <path>', 'rather than installing modules into the node_modules folder relative to the cwd, output them here');
-    (_commander || _load_commander()).default.option('--preferred-cache-folder <path>', 'specify a custom folder to store the yarn cache if possible');
-    (_commander || _load_commander()).default.option('--cache-folder <path>', 'specify a custom folder that must be used to store the yarn cache');
-    (_commander || _load_commander()).default.option('--mutex <type>[:specifier]', 'use a mutex to ensure only one yarn instance is executing');
-    (_commander || _load_commander()).default.option('--emoji [bool]', 'enable emoji in output', (_conversion || _load_conversion()).boolify, process.platform === 'darwin' || process.env.TERM_PROGRAM === 'Hyper' || process.env.TERM_PROGRAM === 'HyperTerm' || process.env.TERM_PROGRAM === 'Terminus');
-    (_commander || _load_commander()).default.option('-s, --silent', 'skip Yarn console logs, other types of logs (script output) will be printed');
-    (_commander || _load_commander()).default.option('--cwd <cwd>', 'working directory to use', process.cwd());
-    (_commander || _load_commander()).default.option('--proxy <host>', '');
-    (_commander || _load_commander()).default.option('--https-proxy <host>', '');
-    (_commander || _load_commander()).default.option('--registry <url>', 'override configuration registry');
-    (_commander || _load_commander()).default.option('--no-progress', 'disable progress bar');
-    (_commander || _load_commander()).default.option('--network-concurrency <number>', 'maximum number of concurrent network requests', parseInt);
-    (_commander || _load_commander()).default.option('--network-timeout <milliseconds>', 'TCP timeout for network requests', parseInt);
-    (_commander || _load_commander()).default.option('--non-interactive', 'do not show interactive prompts');
-    (_commander || _load_commander()).default.option('--scripts-prepend-node-path [bool]', 'prepend the node executable dir to the PATH in scripts', (_conversion || _load_conversion()).boolify);
-    (_commander || _load_commander()).default.option('--no-node-version-check', 'do not warn when using a potentially unsupported Node version');
-    (_commander || _load_commander()).default.option('--focus', 'Focus on a single workspace by installing remote copies of its sibling workspaces.');
-    (_commander || _load_commander()).default.option('--otp <otpcode>', 'one-time password for two factor authentication');
-
-    // if -v is the first command, then always exit after returning the version
-    if (args[0] === '-v') {
-      console.log((_yarnVersion || _load_yarnVersion()).version.trim());
-      process.exitCode = 0;
-      return;
-    }
-
-    // get command name
-    const firstNonFlagIndex = args.findIndex(function (arg, idx, arr) {
-      const isOption = arg.startsWith('-');
-      const prev = idx > 0 && arr[idx - 1];
-      const prevOption = prev && prev.startsWith('-') && (_commander || _load_commander()).default.optionFor(prev);
-      const boundToPrevOption = prevOption && (prevOption.optional || prevOption.required);
-
-      return !isOption && !boundToPrevOption;
-    });
-    let preCommandArgs;
-    let commandName = '';
-    if (firstNonFlagIndex > -1) {
-      preCommandArgs = args.slice(0, firstNonFlagIndex);
-      commandName = args[firstNonFlagIndex];
-      args = args.slice(firstNonFlagIndex + 1);
-    } else {
-      preCommandArgs = args;
-      args = [];
-    }
-
-    let isKnownCommand = Object.prototype.hasOwnProperty.call((_index3 || _load_index3()).default, commandName);
-    const isHelp = function isHelp(arg) {
-      return arg === '--help' || arg === '-h';
-    };
-    const helpInPre = preCommandArgs.findIndex(isHelp);
-    const helpInArgs = args.findIndex(isHelp);
-    const setHelpMode = function setHelpMode() {
-      if (isKnownCommand) {
-        args.unshift(commandName);
-      }
-      commandName = 'help';
-      isKnownCommand = true;
-    };
-
-    if (helpInPre > -1) {
-      preCommandArgs.splice(helpInPre);
-      setHelpMode();
-    } else if (isKnownCommand && helpInArgs === 0) {
-      args.splice(helpInArgs);
-      setHelpMode();
-    }
-
-    if (!commandName) {
-      commandName = 'install';
-      isKnownCommand = true;
-    }
-
-    if (!isKnownCommand) {
-      // if command is not recognized, then set default to `run`
-      args.unshift(commandName);
-      commandName = 'run';
-    }
-    const command = (_index3 || _load_index3()).default[commandName];
-
-    let warnAboutRunDashDash = false;
-    // we are using "yarn <script> -abc", "yarn run <script> -abc", or "yarn node -abc", we want -abc
-    // to be script options, not yarn options
-    const PROXY_COMMANDS = new Set([`run`, `create`, `node`]);
-    if (PROXY_COMMANDS.has(commandName)) {
-      if (endArgs.length === 0) {
-        let preservedArgs = 0;
-        // the "run" and "create" command take one argument that we want to parse as usual (the
-        // script/package name), hence the splice(1)
-        if (command === (_index3 || _load_index3()).default.run || command === (_index3 || _load_index3()).default.create) {
-          preservedArgs += 1;
-        }
-        // If the --into option immediately follows the command (or the script name in the "run/create"
-        // case), we parse them as regular options so that we can cd into them
-        if (args[preservedArgs] === `--into`) {
-          preservedArgs += 2;
-        }
-        endArgs = ['--', ...args.splice(preservedArgs)];
-      } else {
-        warnAboutRunDashDash = true;
-      }
-    }
-
-    (_commander || _load_commander()).default.originalArgs = args;
-    args = [...preCommandArgs, ...args];
-
-    command.setFlags((_commander || _load_commander()).default);
-    (_commander || _load_commander()).default.parse([...startArgs,
-    // we use this for https://github.com/tj/commander.js/issues/346, otherwise
-    // it will strip some args that match with any options
-    'this-arg-will-get-stripped-later', ...(0, (_rc || _load_rc()).getRcArgs)(commandName, args), ...args]);
-    (_commander || _load_commander()).default.args = (_commander || _load_commander()).default.args.concat(endArgs.slice(1));
-
-    // we strip cmd
-    console.assert((_commander || _load_commander()).default.args.length >= 1);
-    console.assert((_commander || _load_commander()).default.args[0] === 'this-arg-will-get-stripped-later');
-    (_commander || _load_commander()).default.args.shift();
-
-    //
-    const Reporter = (_commander || _load_commander()).default.json ? (_index || _load_index()).JSONReporter : (_index || _load_index()).ConsoleReporter;
-    const reporter = new Reporter({
-      emoji: process.stdout.isTTY && (_commander || _load_commander()).default.emoji,
-      verbose: (_commander || _load_commander()).default.verbose,
-      noProgress: !(_commander || _load_commander()).default.progress,
-      isSilent: (0, (_conversion || _load_conversion()).boolifyWithDefault)(process.env.YARN_SILENT, false) || (_commander || _load_commander()).default.silent,
-      nonInteractive: (_commander || _load_commander()).default.nonInteractive
-    });
-
-    const exit = function exit(exitCode) {
-      process.exitCode = exitCode || 0;
-      reporter.close();
-    };
-
-    reporter.initPeakMemoryCounter();
-
-    const config = new (_config || _load_config()).default(reporter);
-    const outputWrapperEnabled = (0, (_conversion || _load_conversion()).boolifyWithDefault)(process.env.YARN_WRAP_OUTPUT, true);
-    const shouldWrapOutput = outputWrapperEnabled && !(_commander || _load_commander()).default.json && command.hasWrapper((_commander || _load_commander()).default, (_commander || _load_commander()).default.args);
-
-    if (shouldWrapOutput) {
-      reporter.header(commandName, { name: 'yarn', version: (_yarnVersion || _load_yarnVersion()).version });
-    }
-
-    if ((_commander || _load_commander()).default.nodeVersionCheck && !(_semver || _load_semver()).default.satisfies(process.versions.node, (_constants || _load_constants()).SUPPORTED_NODE_VERSIONS)) {
-      reporter.warn(reporter.lang('unsupportedNodeVersion', process.versions.node, (_constants || _load_constants()).SUPPORTED_NODE_VERSIONS));
-    }
-
-    if (command.noArguments && (_commander || _load_commander()).default.args.length) {
-      reporter.error(reporter.lang('noArguments'));
-      reporter.info(command.getDocsInfo);
-      exit(1);
-      return;
-    }
-
-    //
-    if ((_commander || _load_commander()).default.yes) {
-      reporter.warn(reporter.lang('yesWarning'));
-    }
-
-    //
-    if (!(_commander || _load_commander()).default.offline && (_network || _load_network()).isOffline()) {
-      reporter.warn(reporter.lang('networkWarning'));
-    }
-
-    //
-    const run = function run() {
-      (0, (_invariant || _load_invariant()).default)(command, 'missing command');
-
-      if (warnAboutRunDashDash) {
-        reporter.warn(reporter.lang('dashDashDeprecation'));
-      }
-
-      return command.run(config, reporter, (_commander || _load_commander()).default, (_commander || _load_commander()).default.args).then(function (exitCode) {
-        if (shouldWrapOutput) {
-          reporter.footer(false);
-        }
-        return exitCode;
-      });
-    };
-
-    //
-    const runEventuallyWithFile = function runEventuallyWithFile(mutexFilename, isFirstTime) {
-      return new Promise(function (resolve) {
-        const lockFilename = mutexFilename || (_path || _load_path()).default.join(config.cwd, (_constants || _load_constants()).SINGLE_INSTANCE_FILENAME);
-        (_properLockfile || _load_properLockfile()).default.lock(lockFilename, { realpath: false }, function (err, release) {
-          if (err) {
-            if (isFirstTime) {
-              reporter.warn(reporter.lang('waitingInstance'));
-            }
-            setTimeout(function () {
-              resolve(runEventuallyWithFile(mutexFilename, false));
-            }, 200); // do not starve the CPU
-          } else {
-            (0, (_death || _load_death()).default)(function () {
-              process.exitCode = 1;
-            });
-            resolve(run().then(function () {
-              return new Promise(function (resolve) {
-                return release(resolve);
-              });
-            }));
-          }
-        });
-      });
-    };
-
-    const runEventuallyWithNetwork = function runEventuallyWithNetwork(mutexPort) {
-      return new Promise(function (resolve, reject) {
-        const connectionOptions = {
-          port: +mutexPort || (_constants || _load_constants()).SINGLE_INSTANCE_PORT,
-          host: 'localhost'
-        };
-
-        function startServer() {
-          const clients = new Set();
-          const server = (_http || _load_http()).default.createServer(manager);
-
-          // The server must not prevent us from exiting
-          server.unref();
-
-          // No socket must timeout, so that they aren't closed before we exit
-          server.timeout = 0;
-
-          // If we fail to setup the server, we ask the existing one for its name
-          server.on('error', () => {
-            reportServerName();
-          });
-
-          // If we succeed, keep track of all the connected sockets to close them later
-          server.on('connection', socket => {
-            clients.add(socket);
-            socket.on('close', () => {
-              clients.delete(socket);
-            });
-          });
-
-          server.listen(connectionOptions, () => {
-            // Don't forget to kill the sockets if we're being killed via signals
-            (0, (_death || _load_death()).default)(killSockets);
-
-            // Also kill the sockets if we finish, whether it's a success or a failure
-            run().then(res => {
-              killSockets();
-              resolve(res);
-            }, err => {
-              killSockets();
-              reject(err);
-            });
-          });
-
-          function manager(request, response) {
-            response.writeHead(200);
-            response.end(JSON.stringify({ cwd: config.cwd, pid: process.pid }));
-          }
-
-          function killSockets() {
-            try {
-              server.close();
-            } catch (err) {
-              // best effort
-            }
-
-            for (var _iterator = clients, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-              var _ref2;
-
-              if (_isArray) {
-                if (_i >= _iterator.length) break;
-                _ref2 = _iterator[_i++];
-              } else {
-                _i = _iterator.next();
-                if (_i.done) break;
-                _ref2 = _i.value;
-              }
-
-              const socket = _ref2;
-
-              try {
-                socket.destroy();
-              } catch (err) {
-                // best effort
-              }
-            }
-
-            // If the process hasn't exited in the next 5s, it has stalled and we abort
-            const timeout = setTimeout(() => {
-              console.error('Process stalled');
-              if (process._getActiveHandles) {
-                console.error('Active handles:');
-                // $FlowFixMe: getActiveHandles is undocumented, but it exists
-                for (var _iterator2 = process._getActiveHandles(), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-                  var _ref3;
-
-                  if (_isArray2) {
-                    if (_i2 >= _iterator2.length) break;
-                    _ref3 = _iterator2[_i2++];
-                  } else {
-                    _i2 = _iterator2.next();
-                    if (_i2.done) break;
-                    _ref3 = _i2.value;
-                  }
-
-                  const handle = _ref3;
-
-                  console.error(`  - ${handle.constructor.name}`);
-                }
-              }
-              // eslint-disable-next-line no-process-exit
-              process.exit(1);
-            }, 5000);
-
-            // This timeout must not prevent us from exiting
-            // $FlowFixMe: Node's setTimeout returns a Timeout, not a Number
-            timeout.unref();
-          }
-        }
-
-        function reportServerName() {
-          const request = (_http || _load_http()).default.get(connectionOptions, response => {
-            const buffers = [];
-
-            response.on('data', buffer => {
-              buffers.push(buffer);
-            });
-
-            response.on('end', () => {
-              try {
-                var _JSON$parse = JSON.parse(Buffer.concat(buffers).toString());
-
-                const cwd = _JSON$parse.cwd,
-                      pid = _JSON$parse.pid;
-
-                reporter.warn(reporter.lang('waitingNamedInstance', pid, cwd));
-              } catch (error) {
-                reporter.verbose(error);
-                reject(new Error(reporter.lang('mutexPortBusy', connectionOptions.port)));
-                return;
-              }
-              waitForTheNetwork();
-            });
-
-            response.on('error', () => {
-              startServer();
-            });
-          });
-
-          request.on('error', () => {
-            startServer();
-          });
-        }
-
-        function waitForTheNetwork() {
-          const socket = (_net || _load_net()).default.createConnection(connectionOptions);
-
-          socket.on('error', () => {
-            // catch & ignore, the retry is handled in 'close'
-          });
-
-          socket.on('close', () => {
-            startServer();
-          });
-        }
-
-        startServer();
-      });
-    };
-
-    function onUnexpectedError(err) {
-      function indent(str) {
-        return '\n  ' + str.trim().split('\n').join('\n  ');
-      }
-
-      const log = [];
-      log.push(`Arguments: ${indent(process.argv.join(' '))}`);
-      log.push(`PATH: ${indent(process.env.PATH || 'undefined')}`);
-      log.push(`Yarn version: ${indent((_yarnVersion || _load_yarnVersion()).version)}`);
-      log.push(`Node version: ${indent(process.versions.node)}`);
-      log.push(`Platform: ${indent(process.platform + ' ' + process.arch)}`);
-
-      log.push(`Trace: ${indent(err.stack)}`);
-
-      // add manifests
-      for (var _iterator3 = (_index2 || _load_index2()).registryNames, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref4 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref4 = _i3.value;
-        }
-
-        const registryName = _ref4;
-
-        const possibleLoc = (_path || _load_path()).default.join(config.cwd, (_index2 || _load_index2()).registries[registryName].filename);
-        const manifest = (_fs || _load_fs()).default.existsSync(possibleLoc) ? (_fs || _load_fs()).default.readFileSync(possibleLoc, 'utf8') : 'No manifest';
-        log.push(`${registryName} manifest: ${indent(manifest)}`);
-      }
-
-      // lockfile
-      const lockLoc = (_path || _load_path()).default.join(config.lockfileFolder || config.cwd, // lockfileFolder might not be set at this point
-      (_constants || _load_constants()).LOCKFILE_FILENAME);
-      const lockfile = (_fs || _load_fs()).default.existsSync(lockLoc) ? (_fs || _load_fs()).default.readFileSync(lockLoc, 'utf8') : 'No lockfile';
-      log.push(`Lockfile: ${indent(lockfile)}`);
-
-      const errorReportLoc = writeErrorReport(log);
-
-      reporter.error(reporter.lang('unexpectedError', err.message));
-
-      if (errorReportLoc) {
-        reporter.info(reporter.lang('bugReport', errorReportLoc));
-      }
-    }
-
-    function writeErrorReport(log) {
-      const errorReportLoc = config.enableMetaFolder ? (_path || _load_path()).default.join(config.cwd, (_constants || _load_constants()).META_FOLDER, 'yarn-error.log') : (_path || _load_path()).default.join(config.cwd, 'yarn-error.log');
-
-      try {
-        (_fs || _load_fs()).default.writeFileSync(errorReportLoc, log.join('\n\n') + '\n');
-      } catch (err) {
-        reporter.error(reporter.lang('fileWriteError', errorReportLoc, err.message));
-        return undefined;
-      }
-
-      return errorReportLoc;
-    }
-
-    const cwd = command.shouldRunInCurrentCwd ? (_commander || _load_commander()).default.cwd : findProjectRoot((_commander || _load_commander()).default.cwd);
-
-    const folderOptionKeys = ['linkFolder', 'globalFolder', 'preferredCacheFolder', 'cacheFolder', 'modulesFolder'];
-
-    // Resolve all folder options relative to cwd
-    const resolvedFolderOptions = {};
-    folderOptionKeys.forEach(function (folderOptionKey) {
-      const folderOption = (_commander || _load_commander()).default[folderOptionKey];
-      const resolvedFolderOption = folderOption ? (_path || _load_path()).default.resolve((_commander || _load_commander()).default.cwd, folderOption) : folderOption;
-      resolvedFolderOptions[folderOptionKey] = resolvedFolderOption;
-    });
-
-    yield config.init((0, (_extends2 || _load_extends()).default)({
-      cwd,
-      commandName
-    }, resolvedFolderOptions, {
-      enablePnp: (_commander || _load_commander()).default.pnp,
-      disablePnp: (_commander || _load_commander()).default.disablePnp,
-      enableDefaultRc: (_commander || _load_commander()).default.defaultRc,
-      extraneousYarnrcFiles: (_commander || _load_commander()).default.useYarnrc,
-      binLinks: (_commander || _load_commander()).default.binLinks,
-      preferOffline: (_commander || _load_commander()).default.preferOffline,
-      captureHar: (_commander || _load_commander()).default.har,
-      ignorePlatform: (_commander || _load_commander()).default.ignorePlatform,
-      ignoreEngines: (_commander || _load_commander()).default.ignoreEngines,
-      ignoreScripts: (_commander || _load_commander()).default.ignoreScripts,
-      offline: (_commander || _load_commander()).default.preferOffline || (_commander || _load_commander()).default.offline,
-      looseSemver: !(_commander || _load_commander()).default.strictSemver,
-      production: (_commander || _load_commander()).default.production,
-      httpProxy: (_commander || _load_commander()).default.proxy,
-      httpsProxy: (_commander || _load_commander()).default.httpsProxy,
-      registry: (_commander || _load_commander()).default.registry,
-      networkConcurrency: (_commander || _load_commander()).default.networkConcurrency,
-      networkTimeout: (_commander || _load_commander()).default.networkTimeout,
-      nonInteractive: (_commander || _load_commander()).default.nonInteractive,
-      updateChecksums: (_commander || _load_commander()).default.updateChecksums,
-      focus: (_commander || _load_commander()).default.focus,
-      otp: (_commander || _load_commander()).default.otp
-    })).then(function () {
-      // lockfile check must happen after config.init sets lockfileFolder
-      if (command.requireLockfile && !(_fs || _load_fs()).default.existsSync((_path || _load_path()).default.join(config.lockfileFolder, (_constants || _load_constants()).LOCKFILE_FILENAME))) {
-        throw new (_errors || _load_errors()).MessageError(reporter.lang('noRequiredLockfile'));
-      }
-
-      // option "no-progress" stored in yarn config
-      const noProgressConfig = config.registries.yarn.getOption('no-progress');
-
-      if (noProgressConfig) {
-        reporter.disableProgress();
-      }
-
-      // verbose logs outputs process.uptime() with this line we can sync uptime to absolute time on the computer
-      reporter.verbose(`current time: ${new Date().toISOString()}`);
-
-      const mutex = (_commander || _load_commander()).default.mutex;
-      if (mutex && typeof mutex === 'string') {
-        const separatorLoc = mutex.indexOf(':');
-        let mutexType;
-        let mutexSpecifier;
-        if (separatorLoc === -1) {
-          mutexType = mutex;
-          mutexSpecifier = undefined;
-        } else {
-          mutexType = mutex.substring(0, separatorLoc);
-          mutexSpecifier = mutex.substring(separatorLoc + 1);
-        }
-
-        if (mutexType === 'file') {
-          return runEventuallyWithFile(mutexSpecifier, true).then(exit);
-        } else if (mutexType === 'network') {
-          return runEventuallyWithNetwork(mutexSpecifier).then(exit);
-        } else {
-          throw new (_errors || _load_errors()).MessageError(`Unknown single instance type ${mutexType}`);
-        }
-      } else {
-        return run().then(exit);
-      }
-    }).catch(function (err) {
-      reporter.verbose(err.stack);
-
-      if (err instanceof (_errors2 || _load_errors2()).ProcessTermError && reporter.isSilent) {
-        return exit(err.EXIT_CODE || 1);
-      }
-
-      if (err instanceof (_errors || _load_errors()).MessageError) {
-        reporter.error(err.message);
-      } else {
-        onUnexpectedError(err);
-      }
-
-      if (command.getDocsInfo) {
-        reporter.info(command.getDocsInfo);
-      }
-
-      if (err instanceof (_errors2 || _load_errors2()).ProcessTermError) {
-        return exit(err.EXIT_CODE || 1);
-      }
-
-      return exit(1);
-    });
-  });
-
-  return function main(_x) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-let start = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-    const rc = (0, (_rc || _load_rc()).getRcConfigForCwd)(process.cwd(), process.argv.slice(2));
-    const yarnPath = rc['yarn-path'] || rc['yarnPath'];
-
-    if (yarnPath && !(0, (_conversion || _load_conversion()).boolifyWithDefault)(process.env.YARN_IGNORE_PATH, false)) {
-      const argv = process.argv.slice(2);
-      const opts = { stdio: 'inherit', env: Object.assign({}, process.env, { YARN_IGNORE_PATH: 1 }) };
-      let exitCode = 0;
-
-      try {
-        if (yarnPath.endsWith(`.js`)) {
-          exitCode = yield (0, (_child || _load_child()).spawnp)(process.execPath, [yarnPath, ...argv], opts);
-        } else {
-          exitCode = yield (0, (_child || _load_child()).spawnp)(yarnPath, argv, opts);
-        }
-      } catch (firstError) {
-        try {
-          exitCode = yield (0, (_child || _load_child()).forkp)(yarnPath, argv, opts);
-        } catch (error) {
-          throw firstError;
-        }
-      }
-
-      process.exitCode = exitCode;
-    } else {
-      // ignore all arguments after a --
-      const doubleDashIndex = process.argv.findIndex(function (element) {
-        return element === '--';
-      });
-      const startArgs = process.argv.slice(0, 2);
-      const args = process.argv.slice(2, doubleDashIndex === -1 ? process.argv.length : doubleDashIndex);
-      const endArgs = doubleDashIndex === -1 ? [] : process.argv.slice(doubleDashIndex);
-
-      yield main({ startArgs, args, endArgs });
-    }
-  });
-
-  return function start() {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-// When this module is compiled via Webpack, its child
-// count will be 0 since it is a single-file bundle.
-
-
-var _http;
-
-function _load_http() {
-  return _http = _interopRequireDefault(__webpack_require__(87));
-}
-
-var _net;
-
-function _load_net() {
-  return _net = _interopRequireDefault(__webpack_require__(164));
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireDefault(__webpack_require__(0));
-}
-
-var _commander;
-
-function _load_commander() {
-  return _commander = _interopRequireDefault(__webpack_require__(338));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireDefault(__webpack_require__(5));
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-var _properLockfile;
-
-function _load_properLockfile() {
-  return _properLockfile = _interopRequireDefault(__webpack_require__(471));
-}
-
-var _loudRejection;
-
-function _load_loudRejection() {
-  return _loudRejection = _interopRequireDefault(__webpack_require__(470));
-}
-
-var _death;
-
-function _load_death() {
-  return _death = _interopRequireDefault(__webpack_require__(469));
-}
-
-var _semver;
-
-function _load_semver() {
-  return _semver = _interopRequireDefault(__webpack_require__(22));
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(200);
-}
-
-var _index2;
-
-function _load_index2() {
-  return _index2 = __webpack_require__(57);
-}
-
-var _index3;
-
-function _load_index3() {
-  return _index3 = _interopRequireDefault(__webpack_require__(334));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _network;
-
-function _load_network() {
-  return _network = _interopRequireWildcard(__webpack_require__(337));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _config;
-
-function _load_config() {
-  return _config = _interopRequireDefault(__webpack_require__(162));
-}
-
-var _rc;
-
-function _load_rc() {
-  return _rc = __webpack_require__(335);
-}
-
-var _child;
-
-function _load_child() {
-  return _child = __webpack_require__(58);
-}
-
-var _yarnVersion;
-
-function _load_yarnVersion() {
-  return _yarnVersion = __webpack_require__(120);
-}
-
-var _signalHandler;
-
-function _load_signalHandler() {
-  return _signalHandler = _interopRequireDefault(__webpack_require__(468));
-}
-
-var _conversion;
-
-function _load_conversion() {
-  return _conversion = __webpack_require__(336);
-}
-
-var _errors2;
-
-function _load_errors2() {
-  return _errors2 = __webpack_require__(6);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-process.stdout.prependListener('error', err => {
-  // swallow err only if downstream consumer process closed pipe early
-  if (err.code === 'EPIPE' || err.code === 'ERR_STREAM_DESTROYED') {
-    return;
-  }
-  throw err;
-});
-
-function findProjectRoot(base) {
-  let prev = null;
-  let dir = base;
-
-  do {
-    if ((_fs || _load_fs()).default.existsSync((_path || _load_path()).default.join(dir, (_constants || _load_constants()).NODE_PACKAGE_JSON))) {
-      return dir;
-    }
-
-    prev = dir;
-    dir = (_path || _load_path()).default.dirname(dir);
-  } while (dir !== prev);
-
-  return base;
-}
-
-const autoRun = exports.autoRun = module.children.length === 0;
-
-if (__webpack_require__.c[__webpack_require__.s] === module) {
-  start().catch(error => {
-    console.error(error.stack || error.message || error);
-    process.exitCode = 1;
-  });
-}
-
-exports.default = start;
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(163)(module)))
-
-/***/ }),
-/* 550 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _baseFetcher;
-
-function _load_baseFetcher() {
-  return _baseFetcher = _interopRequireDefault(__webpack_require__(167));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class CopyFetcher extends (_baseFetcher || _load_baseFetcher()).default {
-  _fetch() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield (_fs || _load_fs()).copy(_this.reference, _this.dest, _this.reporter);
-      return {
-        hash: _this.hash || '',
-        resolved: null
-      };
-    })();
-  }
-}
-exports.default = CopyFetcher;
-
-/***/ }),
-/* 551 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _baseFetcher;
-
-function _load_baseFetcher() {
-  return _baseFetcher = _interopRequireDefault(__webpack_require__(167));
-}
-
-var _git;
-
-function _load_git() {
-  return _git = _interopRequireDefault(__webpack_require__(219));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = _interopRequireWildcard(__webpack_require__(8));
-}
-
-var _crypto;
-
-function _load_crypto() {
-  return _crypto = _interopRequireWildcard(__webpack_require__(168));
-}
-
-var _install;
-
-function _load_install() {
-  return _install = __webpack_require__(34);
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = _interopRequireDefault(__webpack_require__(19));
-}
-
-var _config;
-
-function _load_config() {
-  return _config = _interopRequireDefault(__webpack_require__(162));
-}
-
-var _pack;
-
-function _load_pack() {
-  return _pack = __webpack_require__(166);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const tarFs = __webpack_require__(193);
-const url = __webpack_require__(24);
-const path = __webpack_require__(0);
-const fs = __webpack_require__(5);
-
-const invariant = __webpack_require__(9);
-
-const PACKED_FLAG = '1';
-
-class GitFetcher extends (_baseFetcher || _load_baseFetcher()).default {
-  setupMirrorFromCache() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarballMirrorPath = _this.getTarballMirrorPath();
-      const tarballCachePath = _this.getTarballCachePath();
-
-      if (tarballMirrorPath == null) {
-        return;
-      }
-
-      if (!(yield (_fs || _load_fs()).exists(tarballMirrorPath)) && (yield (_fs || _load_fs()).exists(tarballCachePath))) {
-        // The tarball doesn't exists in the offline cache but does in the cache; we import it to the mirror
-        yield (_fs || _load_fs()).mkdirp(path.dirname(tarballMirrorPath));
-        yield (_fs || _load_fs()).copy(tarballCachePath, tarballMirrorPath, _this.reporter);
-      }
-    })();
-  }
-
-  getTarballMirrorPath({ withCommit = true } = {}) {
-    var _url$parse = url.parse(this.reference);
-
-    const pathname = _url$parse.pathname;
-
-
-    if (pathname == null) {
-      return null;
-    }
-
-    const hash = this.hash;
-
-    let packageFilename = withCommit && hash ? `${path.basename(pathname)}-${hash}` : `${path.basename(pathname)}`;
-
-    if (packageFilename.startsWith(':')) {
-      packageFilename = packageFilename.substr(1);
-    }
-
-    return this.config.getOfflineMirrorPath(packageFilename);
-  }
-
-  getTarballCachePath() {
-    return path.join(this.dest, (_constants || _load_constants()).TARBALL_FILENAME);
-  }
-
-  getLocalPaths(override) {
-    const paths = [override ? path.resolve(this.config.cwd, override) : null, this.getTarballMirrorPath(), this.getTarballMirrorPath({ withCommit: false }), this.getTarballCachePath()];
-    // $FlowFixMe: https://github.com/facebook/flow/issues/1414
-    return paths.filter(path => path != null);
-  }
-
-  fetchFromLocal(override) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarPaths = _this2.getLocalPaths(override);
-      const stream = yield (_fs || _load_fs()).readFirstAvailableStream(tarPaths);
-
-      return new Promise(function (resolve, reject) {
-        if (!stream) {
-          reject(new (_errors || _load_errors()).MessageError(_this2.reporter.lang('tarballNotInNetworkOrCache', _this2.reference, tarPaths)));
-          return;
-        }
-        invariant(stream, 'cachedStream should be available at this point');
-        // $FlowFixMe - This is available https://nodejs.org/api/fs.html#fs_readstream_path
-        const tarballPath = stream.path;
-
-        const untarStream = _this2._createUntarStream(_this2.dest);
-
-        const hashStream = new (_crypto || _load_crypto()).HashStream();
-        stream.pipe(hashStream).pipe(untarStream).on('finish', function () {
-          const expectHash = _this2.hash;
-          invariant(expectHash, 'Commit hash required');
-
-          const actualHash = hashStream.getHash();
-
-          // This condition is disabled because "expectHash" actually is the commit hash
-          // This is a design issue that we'll need to fix (https://github.com/yarnpkg/yarn/pull/3449)
-          if (true) {
-            resolve({
-              hash: expectHash
-            });
-          } else {
-            reject(new (_errors || _load_errors()).SecurityError(_this2.config.reporter.lang('fetchBadHashWithPath', _this2.packageName, _this2.remote.reference, expectHash, actualHash)));
-          }
-        }).on('error', function (err) {
-          reject(new (_errors || _load_errors()).MessageError(this.reporter.lang('fetchErrorCorrupt', err.message, tarballPath)));
-        });
-      });
-    })();
-  }
-
-  hasPrepareScript(git) {
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const manifestFile = yield git.getFile('package.json');
-
-      if (manifestFile) {
-        const scripts = JSON.parse(manifestFile).scripts;
-        const hasPrepareScript = Boolean(scripts && scripts.prepare);
-        return hasPrepareScript;
-      }
-
-      return false;
-    })();
-  }
-
-  fetchFromExternal() {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const hash = _this3.hash;
-      invariant(hash, 'Commit hash required');
-
-      const gitUrl = (_git || _load_git()).default.npmUrlToGitUrl(_this3.reference);
-      const git = new (_git || _load_git()).default(_this3.config, gitUrl, hash);
-      yield git.init();
-
-      if (yield _this3.hasPrepareScript(git)) {
-        yield _this3.fetchFromInstallAndPack(git);
-      } else {
-        yield _this3.fetchFromGitArchive(git);
-      }
-
-      return {
-        hash
-      };
-    })();
-  }
-
-  fetchFromInstallAndPack(git) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const prepareDirectory = _this4.config.getTemp(`${(_crypto || _load_crypto()).hash(git.gitUrl.repository)}.${git.hash}.prepare`);
-      yield (_fs || _load_fs()).unlink(prepareDirectory);
-
-      yield git.clone(prepareDirectory);
-
-      var _ref = yield Promise.all([(_config || _load_config()).default.create({
-        binLinks: true,
-        cwd: prepareDirectory,
-        disablePrepublish: true,
-        production: false
-      }, _this4.reporter), (_lockfile || _load_lockfile()).default.fromDirectory(prepareDirectory, _this4.reporter)]);
-
-      const prepareConfig = _ref[0],
-            prepareLockFile = _ref[1];
-
-      yield (0, (_install || _load_install()).install)(prepareConfig, _this4.reporter, {}, prepareLockFile);
-
-      const tarballMirrorPath = _this4.getTarballMirrorPath();
-      const tarballCachePath = _this4.getTarballCachePath();
-
-      if (tarballMirrorPath) {
-        yield _this4._packToTarball(prepareConfig, tarballMirrorPath);
-      }
-      if (tarballCachePath) {
-        yield _this4._packToTarball(prepareConfig, tarballCachePath);
-      }
-
-      yield _this4._packToDirectory(prepareConfig, _this4.dest);
-
-      yield (_fs || _load_fs()).unlink(prepareDirectory);
-    })();
-  }
-
-  _packToTarball(config, path) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarballStream = yield _this5._createTarballStream(config);
-      yield new Promise(function (resolve, reject) {
-        const writeStream = fs.createWriteStream(path);
-        tarballStream.on('error', reject);
-        writeStream.on('error', reject);
-        writeStream.on('end', resolve);
-        writeStream.on('open', function () {
-          tarballStream.pipe(writeStream);
-        });
-        writeStream.once('finish', resolve);
-      });
-    })();
-  }
-
-  _packToDirectory(config, dest) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const tarballStream = yield _this6._createTarballStream(config);
-      yield new Promise(function (resolve, reject) {
-        const untarStream = _this6._createUntarStream(dest);
-        tarballStream.on('error', reject);
-        untarStream.on('error', reject);
-        untarStream.on('end', resolve);
-        untarStream.once('finish', resolve);
-        tarballStream.pipe(untarStream);
-      });
-    })();
-  }
-
-  _createTarballStream(config) {
-    let savedPackedHeader = false;
-    return (0, (_pack || _load_pack()).packTarball)(config, {
-      mapHeader(header) {
-        if (!savedPackedHeader) {
-          savedPackedHeader = true;
-          header.pax = header.pax || {};
-          // add a custom data on the first header
-          // in order to distinguish a tar from "git archive" and a tar from "pack" command
-          header.pax.packed = PACKED_FLAG;
-        }
-        return header;
-      }
-    });
-  }
-
-  _createUntarStream(dest) {
-    const PREFIX = 'package/';
-    let isPackedTarball = undefined;
-    return tarFs.extract(dest, {
-      dmode: 0o555, // all dirs should be readable
-      fmode: 0o444, // all files should be readable
-      chown: false, // don't chown. just leave as it is
-      map: header => {
-        if (isPackedTarball === undefined) {
-          isPackedTarball = header.pax && header.pax.packed === PACKED_FLAG;
-        }
-        if (isPackedTarball) {
-          header.name = header.name.substr(PREFIX.length);
-        }
-      }
-    });
-  }
-
-  fetchFromGitArchive(git) {
-    var _this7 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield git.clone(_this7.dest);
-      const tarballMirrorPath = _this7.getTarballMirrorPath();
-      const tarballCachePath = _this7.getTarballCachePath();
-
-      if (tarballMirrorPath) {
-        yield git.archive(tarballMirrorPath);
-      }
-
-      if (tarballCachePath) {
-        yield git.archive(tarballCachePath);
-      }
-    })();
-  }
-
-  _fetch() {
-    return this.fetchFromLocal().catch(err => this.fetchFromExternal());
-  }
-}
-exports.default = GitFetcher;
-
-/***/ }),
-/* 552 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.workspace = exports.tarball = exports.git = exports.copy = exports.base = undefined;
-
-var _baseFetcher;
-
-function _load_baseFetcher() {
-  return _baseFetcher = _interopRequireDefault(__webpack_require__(167));
-}
-
-var _copyFetcher;
-
-function _load_copyFetcher() {
-  return _copyFetcher = _interopRequireDefault(__webpack_require__(550));
-}
-
-var _gitFetcher;
-
-function _load_gitFetcher() {
-  return _gitFetcher = _interopRequireDefault(__webpack_require__(551));
-}
-
-var _tarballFetcher;
-
-function _load_tarballFetcher() {
-  return _tarballFetcher = _interopRequireDefault(__webpack_require__(364));
-}
-
-var _workspaceFetcher;
-
-function _load_workspaceFetcher() {
-  return _workspaceFetcher = _interopRequireDefault(__webpack_require__(553));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-exports.base = (_baseFetcher || _load_baseFetcher()).default;
-exports.copy = (_copyFetcher || _load_copyFetcher()).default;
-exports.git = (_gitFetcher || _load_gitFetcher()).default;
-exports.tarball = (_tarballFetcher || _load_tarballFetcher()).default;
-exports.workspace = (_workspaceFetcher || _load_workspaceFetcher()).default;
-
-/***/ }),
-/* 553 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _packageFetcher;
-
-function _load_packageFetcher() {
-  return _packageFetcher = __webpack_require__(210);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class WorkspaceFetcher {
-  constructor(dest, remote, config) {
-    this.config = config;
-    this.dest = dest;
-    this.registry = remote.registry;
-    this.workspaceDir = remote.reference;
-    this.registryRemote = remote.registryRemote;
-  }
-
-  setupMirrorFromCache() {
-    return Promise.resolve();
-  }
-
-  fetch() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const pkg = yield _this.config.readManifest(_this.workspaceDir, _this.registry);
-
-      if (_this.registryRemote) {
-        yield _this.fetchRemoteWorkspace(_this.registryRemote, pkg);
-      }
-
-      return {
-        resolved: null,
-        hash: '',
-        cached: false,
-        dest: _this.dest,
-        package: (0, (_extends2 || _load_extends()).default)({}, pkg, {
-          _uid: pkg.version
-        })
-      };
-    })();
-  }
-
-  fetchRemoteWorkspace(remote, manifest) {
-    return (0, (_packageFetcher || _load_packageFetcher()).fetchOneRemote)(remote, manifest.name, manifest.version, this.dest, this.config);
-  }
-}
-exports.default = WorkspaceFetcher;
-
-/***/ }),
-/* 554 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.buildTree = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let buildTree = exports.buildTree = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (resolver, linker, patterns, ignoreHoisted) {
-    const treesByKey = {};
-    const trees = [];
-    const flatTree = yield linker.getFlatHoistedTree(patterns);
-
-    // If using workspaces, filter out the virtual manifest
-    const workspaceLayout = resolver.workspaceLayout;
-
-    const hoisted = workspaceLayout && workspaceLayout.virtualManifestName ? flatTree.filter(function ([key]) {
-      return key.indexOf(workspaceLayout.virtualManifestName) === -1;
-    }) : flatTree;
-
-    const hoistedByKey = {};
-    for (var _iterator = hoisted, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref3;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref3 = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref3 = _i.value;
-      }
-
-      const _ref2 = _ref3;
-      const key = _ref2[0];
-      const info = _ref2[1];
-
-      hoistedByKey[key] = info;
-    }
-
-    // build initial trees
-    for (var _iterator2 = hoisted, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref5 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref5 = _i2.value;
-      }
-
-      const _ref4 = _ref5;
-      const info = _ref4[1];
-
-      const ref = info.pkg._reference;
-      // const parent = getParent(info.key, treesByKey);
-      const children = [];
-      // let depth = 0;
-      invariant(ref, 'expected reference');
-
-      // check parent to obtain next depth
-      // if (parent && parent.depth > 0) {
-      //   depth = parent.depth + 1;
-      // } else {
-      //   depth = 0;
-      // }
-
-      treesByKey[info.key] = {
-        name: info.pkg.name,
-        version: info.pkg.version,
-        children,
-        manifest: info
-      };
-    }
-
-    // add children
-    for (var _iterator3 = hoisted, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref7 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref7 = _i3.value;
-      }
-
-      const _ref6 = _ref7;
-      const info = _ref6[1];
-
-      const tree = treesByKey[info.key];
-      const parent = getParent(info.key, treesByKey);
-      if (!tree) {
-        continue;
-      }
-
-      if (info.key.split('#').length === 1) {
-        trees.push(tree);
-        continue;
-      }
-
-      if (parent) {
-        parent.children.push(tree);
-      }
-    }
-
-    return trees;
-  });
-
-  return function buildTree(_x, _x2, _x3, _x4) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.getParent = getParent;
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-function getParent(key, treesByKey) {
-  const parentKey = key.slice(0, key.lastIndexOf('#'));
-  return treesByKey[parentKey];
-}
-
-/***/ }),
-/* 555 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-const semver = __webpack_require__(22);
-
-// This isn't really a "proper" constraint resolver. We just return the highest semver
-// version in the versions passed that satisfies the input range. This vastly reduces
-// the complexity and is very efficient for package resolution.
-
-class PackageConstraintResolver {
-  constructor(config, reporter) {
-    this.reporter = reporter;
-    this.config = config;
-  }
-
-  reduce(versions, range) {
-    if (range === 'latest') {
-      // Usually versions are already ordered and the last one is the latest
-      return Promise.resolve(versions[versions.length - 1]);
-    } else {
-      return Promise.resolve(semver.maxSatisfying(versions, range, this.config.looseSemver));
-    }
-  }
-}
-exports.default = PackageConstraintResolver;
-
-/***/ }),
-/* 556 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.NohoistResolver = exports.HoistManifest = undefined;
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _config;
-
-function _load_config() {
-  return _config = _interopRequireDefault(__webpack_require__(162));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _micromatch;
-
-function _load_micromatch() {
-  return _micromatch = _interopRequireDefault(__webpack_require__(114));
-}
-
-var _workspaceLayout2;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout2 = _interopRequireDefault(__webpack_require__(90));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-const path = __webpack_require__(0);
-
-let historyCounter = 0;
-
-const LINK_TYPES = new Set(['workspace', 'link']);
-class HoistManifest {
-  constructor(key, parts, pkg, loc, isDirectRequire, isRequired, isIncompatible) {
-    this.isDirectRequire = isDirectRequire;
-    this.isRequired = isRequired;
-    this.isIncompatible = isIncompatible;
-
-    this.loc = loc;
-    this.pkg = pkg;
-    this.key = key;
-    this.parts = parts;
-    this.originalKey = key;
-    this.previousPaths = [];
-
-    this.history = [];
-    this.addHistory(`Start position = ${key}`);
-
-    this.isNohoist = false;
-    this.originalParentPath = '';
-
-    this.shallowPaths = [];
-    this.isShallow = false;
-  }
-
-  //focus
-
-
-  // nohoist info
-
-
-  addHistory(msg) {
-    this.history.push(`${++historyCounter}: ${msg}`);
-  }
-}
-
-exports.HoistManifest = HoistManifest;
-class PackageHoister {
-  constructor(config, resolver, { ignoreOptional, workspaceLayout } = {}) {
-    this.resolver = resolver;
-    this.config = config;
-
-    this.ignoreOptional = ignoreOptional;
-
-    this.taintedKeys = new Map();
-    this.levelQueue = [];
-    this.tree = new Map();
-
-    this.workspaceLayout = workspaceLayout;
-
-    this.nohoistResolver = new NohoistResolver(config, resolver);
-  }
-
-  /**
-   * Taint this key and prevent any modules from being hoisted to it.
-   */
-
-  taintKey(key, info) {
-    const existingTaint = this.taintedKeys.get(key);
-    if (existingTaint && existingTaint.loc !== info.loc) {
-      return false;
-    } else {
-      this.taintedKeys.set(key, info);
-      return true;
-    }
-  }
-
-  /**
-   * Implode an array of ancestry parts into a key.
-   */
-
-  implodeKey(parts) {
-    return parts.join('#');
-  }
-
-  /**
-   * Seed the hoister with patterns taken from the included resolver.
-   */
-
-  seed(patterns) {
-    this.prepass(patterns);
-
-    for (var _iterator = this.resolver.dedupePatterns(patterns), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const pattern = _ref;
-
-      this._seed(pattern, { isDirectRequire: true });
-    }
-
-    while (true) {
-      let queue = this.levelQueue;
-      if (!queue.length) {
-        this._propagateRequired();
-        return;
-      }
-
-      this.levelQueue = [];
-
-      // sort queue to get determinism between runs
-      queue = queue.sort(([aPattern], [bPattern]) => {
-        return (0, (_misc || _load_misc()).sortAlpha)(aPattern, bPattern);
-      });
-
-      // sort the queue again to hoist packages without peer dependencies first
-      let sortedQueue = [];
-      const availableSet = new Set();
-
-      let hasChanged = true;
-      while (queue.length > 0 && hasChanged) {
-        hasChanged = false;
-
-        const queueCopy = queue;
-        queue = [];
-        for (let t = 0; t < queueCopy.length; ++t) {
-          const queueItem = queueCopy[t];
-          const pattern = queueItem[0];
-          const pkg = this.resolver.getStrictResolvedPattern(pattern);
-
-          const peerDependencies = Object.keys(pkg.peerDependencies || {});
-          const areDependenciesFulfilled = peerDependencies.every(peerDependency => availableSet.has(peerDependency));
-
-          if (areDependenciesFulfilled) {
-            // Move the package inside our sorted queue
-            sortedQueue.push(queueItem);
-
-            // Add it to our set, so that we know it is available
-            availableSet.add(pattern);
-
-            // Schedule a next pass, in case other packages had peer dependencies on this one
-            hasChanged = true;
-          } else {
-            queue.push(queueItem);
-          }
-        }
-      }
-
-      // We might end up with some packages left in the queue, that have not been sorted. We reach this codepath if two
-      // packages have a cyclic dependency, or if the peer dependency is provided by a parent package. In these case,
-      // nothing we can do, so we just add all of these packages to the end of the sorted queue.
-      sortedQueue = sortedQueue.concat(queue);
-
-      for (var _iterator2 = sortedQueue, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const _ref2 = _ref3;
-        const pattern = _ref2[0];
-        const parent = _ref2[1];
-
-        const info = this._seed(pattern, { isDirectRequire: false, parent });
-        if (info) {
-          this.hoist(info);
-        }
-      }
-    }
-  }
-
-  /**
-   * Seed the hoister with a specific pattern.
-   */
-
-  _seed(pattern, { isDirectRequire, parent }) {
-    //
-    const pkg = this.resolver.getStrictResolvedPattern(pattern);
-    const ref = pkg._reference;
-    invariant(ref, 'expected reference');
-
-    //
-    let parentParts = [];
-
-    const isIncompatible = ref.incompatible;
-    const isMarkedAsOptional = ref.optional && this.ignoreOptional;
-
-    let isRequired = isDirectRequire && !ref.ignore && !isIncompatible && !isMarkedAsOptional;
-
-    if (parent) {
-      if (!this.tree.get(parent.key)) {
-        return null;
-      }
-      // non ignored dependencies inherit parent's ignored status
-      // parent may transition from ignored to non ignored when hoisted if it is used in another non ignored branch
-      if (!isDirectRequire && !isIncompatible && parent.isRequired && !isMarkedAsOptional) {
-        isRequired = true;
-      }
-      parentParts = parent.parts;
-    }
-
-    //
-    const loc = this.config.generateModuleCachePath(ref);
-    const parts = parentParts.concat(pkg.name);
-    const key = this.implodeKey(parts);
-    const info = new HoistManifest(key, parts, pkg, loc, isDirectRequire, isRequired, isIncompatible);
-
-    this.nohoistResolver.initNohoist(info, parent);
-
-    this.tree.set(key, info);
-    this.taintKey(key, info);
-
-    //
-    const pushed = new Set();
-    for (var _iterator3 = ref.dependencies, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref4;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref4 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref4 = _i3.value;
-      }
-
-      const depPattern = _ref4;
-
-      if (!pushed.has(depPattern)) {
-        this.levelQueue.push([depPattern, info]);
-        pushed.add(depPattern);
-      }
-    }
-
-    return info;
-  }
-
-  /**
-   * Propagate inherited ignore statuses from non-ignored to ignored packages
-   */
-
-  _propagateRequired() {
-    //
-    const toVisit = [];
-
-    // enumerate all non-ignored packages
-    for (var _iterator4 = this.tree.entries(), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref5;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref5 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref5 = _i4.value;
-      }
-
-      const entry = _ref5;
-
-      if (entry[1].isRequired) {
-        toVisit.push(entry[1]);
-      }
-    }
-
-    // visit them
-    while (toVisit.length) {
-      const info = toVisit.shift();
-      const ref = info.pkg._reference;
-      invariant(ref, 'expected reference');
-
-      for (var _iterator5 = ref.dependencies, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref6;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref6 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref6 = _i5.value;
-        }
-
-        const depPattern = _ref6;
-
-        const depinfo = this._lookupDependency(info, depPattern);
-
-        if (!depinfo) {
-          continue;
-        }
-
-        const depRef = depinfo.pkg._reference;
-
-        // If it's marked as optional, but the parent is required and the
-        // dependency was not listed in `optionalDependencies`, then we mark the
-        // dependency as required.
-        const isMarkedAsOptional = depRef && depRef.optional && this.ignoreOptional && !(info.isRequired && depRef.hint !== 'optional');
-
-        if (!depinfo.isRequired && !depinfo.isIncompatible && !isMarkedAsOptional) {
-          depinfo.isRequired = true;
-          depinfo.addHistory(`Mark as non-ignored because of usage by ${info.key}`);
-          toVisit.push(depinfo);
-        }
-      }
-    }
-  }
-
-  /**
-   * Looks up the package a dependency resolves to
-   */
-
-  _lookupDependency(info, depPattern) {
-    //
-    const pkg = this.resolver.getStrictResolvedPattern(depPattern);
-    const ref = pkg._reference;
-    invariant(ref, 'expected reference');
-
-    //
-    for (let i = info.parts.length; i >= 0; i--) {
-      const checkParts = info.parts.slice(0, i).concat(pkg.name);
-      const checkKey = this.implodeKey(checkParts);
-      const existing = this.tree.get(checkKey);
-      if (existing) {
-        return existing;
-      }
-    }
-
-    return null;
-  }
-
-  /**
-   * Find the highest position we can hoist this module to.
-   */
-
-  getNewParts(key, info, parts) {
-    let stepUp = false;
-
-    const highestHoistingPoint = this.nohoistResolver.highestHoistingPoint(info) || 0;
-    const fullKey = this.implodeKey(parts);
-    const stack = []; // stack of removed parts
-    const name = parts.pop();
-
-    if (info.isNohoist) {
-      info.addHistory(`Marked as nohoist, will not be hoisted above '${parts[highestHoistingPoint]}'`);
-    }
-
-    for (let i = parts.length - 1; i >= highestHoistingPoint; i--) {
-      const checkParts = parts.slice(0, i).concat(name);
-      const checkKey = this.implodeKey(checkParts);
-      info.addHistory(`Looked at ${checkKey} for a match`);
-
-      const existing = this.tree.get(checkKey);
-
-      if (existing) {
-        if (existing.loc === info.loc) {
-          // switch to non ignored if earlier deduped version was ignored (must be compatible)
-          if (!existing.isRequired && info.isRequired) {
-            existing.addHistory(`Deduped ${fullKey} to this item, marking as required`);
-            existing.isRequired = true;
-          } else {
-            existing.addHistory(`Deduped ${fullKey} to this item`);
-          }
-
-          return { parts: checkParts, duplicate: true };
-        } else {
-          // everything above will be shadowed and this is a conflict
-          info.addHistory(`Found a collision at ${checkKey}`);
-          break;
-        }
-      }
-
-      const existingTaint = this.taintedKeys.get(checkKey);
-      if (existingTaint && existingTaint.loc !== info.loc) {
-        info.addHistory(`Broken by ${checkKey}`);
-        break;
-      }
-    }
-
-    const peerDependencies = Object.keys(info.pkg.peerDependencies || {});
-
-    // remove redundant parts that wont collide
-    hoistLoop: while (parts.length > highestHoistingPoint) {
-      // we must not hoist a package higher than its peer dependencies
-      for (var _iterator6 = peerDependencies, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray6) {
-          if (_i6 >= _iterator6.length) break;
-          _ref7 = _iterator6[_i6++];
-        } else {
-          _i6 = _iterator6.next();
-          if (_i6.done) break;
-          _ref7 = _i6.value;
-        }
-
-        const peerDependency = _ref7;
-
-        const checkParts = parts.concat(peerDependency);
-        const checkKey = this.implodeKey(checkParts);
-        info.addHistory(`Looked at ${checkKey} for a peer dependency match`);
-
-        const existing = this.tree.get(checkKey);
-
-        if (existing) {
-          info.addHistory(`Found a peer dependency requirement at ${checkKey}`);
-          break hoistLoop;
-        }
-      }
-
-      const checkParts = parts.concat(name);
-      const checkKey = this.implodeKey(checkParts);
-
-      //
-      const existing = this.tree.get(checkKey);
-      if (existing) {
-        stepUp = true;
-        break;
-      }
-
-      // check if we're trying to hoist ourselves to a previously unflattened module key,
-      // this will result in a conflict and we'll need to move ourselves up
-      if (key !== checkKey && this.taintedKeys.has(checkKey)) {
-        stepUp = true;
-        break;
-      }
-
-      //
-      stack.push(parts.pop());
-    }
-
-    //
-    parts.push(name);
-
-    //
-    const isValidPosition = parts => {
-      // nohoist package can't be hoisted to the "root"
-      if (parts.length <= highestHoistingPoint) {
-        return false;
-      }
-      const key = this.implodeKey(parts);
-      const existing = this.tree.get(key);
-      if (existing && existing.loc === info.loc) {
-        return true;
-      }
-
-      // ensure there's no taint or the taint is us
-      const existingTaint = this.taintedKeys.get(key);
-      if (existingTaint && existingTaint.loc !== info.loc) {
-        return false;
-      }
-
-      return true;
-    };
-
-    // we need to special case when we attempt to hoist to the top level as the `existing` logic
-    // wont be hit in the above `while` loop and we could conflict
-    if (!isValidPosition(parts)) {
-      stepUp = true;
-    }
-
-    // sometimes we need to step up to a parent module to install ourselves
-    while (stepUp && stack.length) {
-      info.addHistory(`Stepping up from ${this.implodeKey(parts)}`);
-
-      parts.pop(); // remove `name`
-      parts.push(stack.pop(), name);
-
-      if (isValidPosition(parts)) {
-        info.addHistory(`Found valid position ${this.implodeKey(parts)}`);
-        stepUp = false;
-      }
-    }
-
-    return { parts, duplicate: false };
-  }
-
-  /**
-   * Hoist all seeded patterns to their highest positions.
-   */
-
-  hoist(info) {
-    const oldKey = info.key,
-          rawParts = info.parts;
-
-    // remove this item from the `tree` map so we can ignore it
-
-    this.tree.delete(oldKey);
-
-    var _getNewParts = this.getNewParts(oldKey, info, rawParts.slice());
-
-    const parts = _getNewParts.parts,
-          duplicate = _getNewParts.duplicate;
-
-
-    const newKey = this.implodeKey(parts);
-    if (duplicate) {
-      info.addHistory(`Satisfied from above by ${newKey}`);
-      this.declareRename(info, rawParts, parts);
-      this.updateHoistHistory(this.nohoistResolver._originalPath(info), this.implodeKey(parts));
-      return;
-    }
-
-    // update to the new key
-    if (oldKey === newKey) {
-      info.addHistory(`Didn't hoist - see reason above`);
-      this.setKey(info, oldKey, rawParts);
-      return;
-    }
-
-    //
-    this.declareRename(info, rawParts, parts);
-    this.setKey(info, newKey, parts);
-  }
-
-  /**
-   * Declare that a module has been hoisted and update our internal references.
-   */
-
-  declareRename(info, oldParts, newParts) {
-    // go down the tree from our new position reserving our name
-    this.taintParents(info, oldParts.slice(0, -1), newParts.length - 1);
-  }
-
-  /**
-   * Crawl upwards through a list of ancestry parts and taint a package name.
-   */
-
-  taintParents(info, processParts, start) {
-    for (let i = start; i < processParts.length; i++) {
-      const parts = processParts.slice(0, i).concat(info.pkg.name);
-      const key = this.implodeKey(parts);
-
-      if (this.taintKey(key, info)) {
-        info.addHistory(`Tainted ${key} to prevent collisions`);
-      }
-    }
-  }
-
-  updateHoistHistory(fromPath, toKey) {
-    const info = this.tree.get(toKey);
-    invariant(info, `expect to find hoist-to ${toKey}`);
-    info.previousPaths.push(fromPath);
-  }
-
-  /**
-   * Update the key of a module and update our references.
-   */
-
-  setKey(info, newKey, parts) {
-    const oldKey = info.key;
-
-    info.key = newKey;
-    info.parts = parts;
-    this.tree.set(newKey, info);
-
-    if (oldKey === newKey) {
-      return;
-    }
-
-    const fromInfo = this.tree.get(newKey);
-    invariant(fromInfo, `expect to find hoist-from ${newKey}`);
-    info.previousPaths.push(this.nohoistResolver._originalPath(fromInfo));
-    info.addHistory(`New position = ${newKey}`);
-  }
-
-  /**
-   * Perform a prepass and if there's multiple versions of the same package, hoist the one with
-   * the most dependents to the top.
-   */
-
-  prepass(patterns) {
-    patterns = this.resolver.dedupePatterns(patterns).sort();
-
-    const visited = new Map();
-
-    const occurences = {};
-
-    // visitor to be used inside add() to mark occurences of packages
-    const visitAdd = (pkg, ancestry, pattern) => {
-      const versions = occurences[pkg.name] = occurences[pkg.name] || {};
-      const version = versions[pkg.version] = versions[pkg.version] || {
-        occurences: new Set(),
-        pattern
-      };
-
-      if (ancestry.length) {
-        version.occurences.add(ancestry[ancestry.length - 1]);
-      }
-    };
-
-    // add an occurring package to the above data structure
-    const add = (pattern, ancestry, ancestryPatterns) => {
-      const pkg = this.resolver.getStrictResolvedPattern(pattern);
-      if (ancestry.indexOf(pkg) >= 0) {
-        // prevent recursive dependencies
-        return;
-      }
-
-      let visitedPattern = visited.get(pattern);
-
-      if (visitedPattern) {
-        // if a package has been visited before, simply increment occurrences of packages
-        // like last time this package was visited
-        visitedPattern.forEach(visitPkg => {
-          visitAdd(visitPkg.pkg, visitPkg.ancestry, visitPkg.pattern);
-        });
-
-        visitAdd(pkg, ancestry, pattern);
-
-        return;
-      }
-
-      const ref = pkg._reference;
-      invariant(ref, 'expected reference');
-
-      visitAdd(pkg, ancestry, pattern);
-
-      for (var _iterator7 = ref.dependencies, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref8;
-
-        if (_isArray7) {
-          if (_i7 >= _iterator7.length) break;
-          _ref8 = _iterator7[_i7++];
-        } else {
-          _i7 = _iterator7.next();
-          if (_i7.done) break;
-          _ref8 = _i7.value;
-        }
-
-        const depPattern = _ref8;
-
-        const depAncestry = ancestry.concat(pkg);
-        const depAncestryPatterns = ancestryPatterns.concat(depPattern);
-        add(depPattern, depAncestry, depAncestryPatterns);
-      }
-
-      visitedPattern = visited.get(pattern) || [];
-      visited.set(pattern, visitedPattern);
-      visitedPattern.push({ pkg, ancestry, pattern });
-
-      ancestryPatterns.forEach(ancestryPattern => {
-        const visitedAncestryPattern = visited.get(ancestryPattern);
-        if (visitedAncestryPattern) {
-          visitedAncestryPattern.push({ pkg, ancestry, pattern });
-        }
-      });
-    };
-
-    // get a list of root package names since we can't hoist other dependencies to these spots!
-    const rootPackageNames = new Set();
-    for (var _iterator8 = patterns, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-      var _ref9;
-
-      if (_isArray8) {
-        if (_i8 >= _iterator8.length) break;
-        _ref9 = _iterator8[_i8++];
-      } else {
-        _i8 = _iterator8.next();
-        if (_i8.done) break;
-        _ref9 = _i8.value;
-      }
-
-      const pattern = _ref9;
-
-      const pkg = this.resolver.getStrictResolvedPattern(pattern);
-      rootPackageNames.add(pkg.name);
-      add(pattern, [], []);
-    }
-
-    for (var _iterator9 = Object.keys(occurences).sort(), _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-      var _ref10;
-
-      if (_isArray9) {
-        if (_i9 >= _iterator9.length) break;
-        _ref10 = _iterator9[_i9++];
-      } else {
-        _i9 = _iterator9.next();
-        if (_i9.done) break;
-        _ref10 = _i9.value;
-      }
-
-      const packageName = _ref10;
-
-      const versionOccurences = occurences[packageName];
-      const versions = Object.keys(versionOccurences);
-
-      if (versions.length === 1) {
-        // only one package type so we'll hoist this to the top anyway
-        continue;
-      }
-
-      if (this.tree.get(packageName)) {
-        // a transitive dependency of a previously hoisted dependency exists
-        continue;
-      }
-
-      if (rootPackageNames.has(packageName)) {
-        // can't replace top level packages
-        continue;
-      }
-
-      let mostOccurenceCount;
-      let mostOccurencePattern;
-      for (var _iterator10 = Object.keys(versionOccurences).sort(), _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-        var _ref11;
-
-        if (_isArray10) {
-          if (_i10 >= _iterator10.length) break;
-          _ref11 = _iterator10[_i10++];
-        } else {
-          _i10 = _iterator10.next();
-          if (_i10.done) break;
-          _ref11 = _i10.value;
-        }
-
-        const version = _ref11;
-        var _versionOccurences$ve = versionOccurences[version];
-        const occurences = _versionOccurences$ve.occurences,
-              pattern = _versionOccurences$ve.pattern;
-
-        const occurenceCount = occurences.size;
-
-        if (!mostOccurenceCount || occurenceCount > mostOccurenceCount) {
-          mostOccurenceCount = occurenceCount;
-          mostOccurencePattern = pattern;
-        }
-      }
-      invariant(mostOccurencePattern, 'expected most occurring pattern');
-      invariant(mostOccurenceCount, 'expected most occurring count');
-
-      // only hoist this module if it occured more than once
-      if (mostOccurenceCount > 1) {
-        this._seed(mostOccurencePattern, { isDirectRequire: false });
-      }
-    }
-  }
-
-  markShallowWorkspaceEntries() {
-    const targetWorkspace = this.config.focusedWorkspaceName;
-    const targetHoistManifest = this.tree.get(targetWorkspace);
-    invariant(targetHoistManifest, `targetHoistManifest from ${targetWorkspace} missing`);
-
-    //dedupe with a set
-    const dependentWorkspaces = Array.from(new Set(this._getDependentWorkspaces(targetHoistManifest)));
-
-    const entries = Array.from(this.tree);
-    entries.forEach(([key, info]) => {
-      const splitPath = key.split('#');
-
-      //mark the workspace and any un-hoisted dependencies it has for shallow installation
-      const isShallowDependency = dependentWorkspaces.some(w => {
-        if (splitPath[0] !== w) {
-          //entry is not related to the workspace
-          return false;
-        }
-        if (!splitPath[1]) {
-          //entry is the workspace
-          return true;
-        }
-        //don't bother marking dev dependencies or nohoist packages for shallow installation
-        const treeEntry = this.tree.get(w);
-        invariant(treeEntry, 'treeEntry is not defined for ' + w);
-        const pkg = treeEntry.pkg;
-        return !info.isNohoist && (!pkg.devDependencies || !(splitPath[1] in pkg.devDependencies));
-      });
-
-      if (isShallowDependency) {
-        info.shallowPaths = [null];
-        return;
-      }
-
-      //if package foo is at TARGET_WORKSPACE/node_modules/foo, the hoisted version of foo
-      //should be installed under each shallow workspace that uses it
-      //(unless that workspace has its own version of foo, in which case that should be installed)
-      if (splitPath.length !== 2 || splitPath[0] !== targetWorkspace) {
-        return;
-      }
-      const unhoistedDependency = splitPath[1];
-      const unhoistedInfo = this.tree.get(unhoistedDependency);
-      if (!unhoistedInfo) {
-        return;
-      }
-      dependentWorkspaces.forEach(w => {
-        if (this._packageDependsOnHoistedPackage(w, unhoistedDependency, false)) {
-          unhoistedInfo.shallowPaths.push(w);
-        }
-      });
-    });
-  }
-
-  _getDependentWorkspaces(parent, allowDevDeps = true, alreadySeen = new Set()) {
-    const parentName = parent.pkg.name;
-    if (alreadySeen.has(parentName)) {
-      return [];
-    }
-
-    alreadySeen.add(parentName);
-    invariant(this.workspaceLayout, 'missing workspaceLayout');
-    var _workspaceLayout = this.workspaceLayout;
-    const virtualManifestName = _workspaceLayout.virtualManifestName,
-          workspaces = _workspaceLayout.workspaces;
-
-
-    const directDependencies = [];
-    const ignored = [];
-    Object.keys(workspaces).forEach(workspace => {
-      if (alreadySeen.has(workspace) || workspace === virtualManifestName) {
-        return;
-      }
-
-      //skip a workspace if a different version of it is already being installed under the parent workspace
-      let info = this.tree.get(`${parentName}#${workspace}`);
-      if (info) {
-        const workspaceVersion = workspaces[workspace].manifest.version;
-        if (info.isNohoist && info.originalParentPath.startsWith(`/${WS_ROOT_ALIAS}/${parentName}`) && info.pkg.version === workspaceVersion) {
-          //nohoist installations are exceptions
-          directDependencies.push(info.key);
-        } else {
-          ignored.push(workspace);
-        }
-        return;
-      }
-
-      const searchPath = `/${WS_ROOT_ALIAS}/${parentName}`;
-      info = this.tree.get(workspace);
-      invariant(info, 'missing workspace tree entry ' + workspace);
-      if (!info.previousPaths.some(p => p.startsWith(searchPath))) {
-        return;
-      }
-      if (allowDevDeps || !parent.pkg.devDependencies || !(workspace in parent.pkg.devDependencies)) {
-        directDependencies.push(workspace);
-      }
-    });
-
-    let nested = directDependencies.map(d => {
-      const dependencyEntry = this.tree.get(d);
-      invariant(dependencyEntry, 'missing dependencyEntry ' + d);
-      return this._getDependentWorkspaces(dependencyEntry, false, alreadySeen);
-    });
-    nested = [].concat.apply([], nested); //flatten
-
-    const directDependencyNames = directDependencies.map(d => d.split('#').slice(-1)[0]);
-
-    return directDependencyNames.concat(nested).filter(w => ignored.indexOf(w) === -1);
-  }
-
-  _packageDependsOnHoistedPackage(p, hoisted, checkDevDeps = true, checked = new Set()) {
-    //don't check the same package more than once, and ignore any package that has its own version of hoisted
-    if (checked.has(p) || this.tree.has(`${p}#${hoisted}`)) {
-      return false;
-    }
-    checked.add(p);
-    const info = this.tree.get(p);
-    if (!info) {
-      return false;
-    }
-
-    const pkg = info.pkg;
-    if (!pkg) {
-      return false;
-    }
-
-    let deps = [];
-    if (pkg.dependencies) {
-      deps = deps.concat(Object.keys(pkg.dependencies));
-    }
-    if (checkDevDeps && pkg.devDependencies) {
-      deps = deps.concat(Object.keys(pkg.devDependencies));
-    }
-
-    if (deps.indexOf(hoisted) !== -1) {
-      return true;
-    }
-    return deps.some(dep => this._packageDependsOnHoistedPackage(dep, hoisted, false, checked));
-  }
-
-  /**
-   * Produce a flattened list of module locations and manifests.
-   */
-
-  init() {
-    const flatTree = [];
-
-    //
-    for (var _iterator11 = this.tree.entries(), _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-      var _ref13;
-
-      if (_isArray11) {
-        if (_i11 >= _iterator11.length) break;
-        _ref13 = _iterator11[_i11++];
-      } else {
-        _i11 = _iterator11.next();
-        if (_i11.done) break;
-        _ref13 = _i11.value;
-      }
-
-      const _ref12 = _ref13;
-      const key = _ref12[0];
-      const info = _ref12[1];
-
-      // decompress the location and push it to the flat tree. this path could be made
-      const parts = [];
-      const keyParts = key.split('#');
-      const isWorkspaceEntry = this.workspaceLayout && keyParts[0] === this.workspaceLayout.virtualManifestName;
-
-      // Don't add the virtual manifest (keyParts.length === 1)
-      // or ws childs which were not hoisted to the root (keyParts.length === 2).
-      // If a ws child was hoisted its key would not contain the virtual manifest name
-      if (isWorkspaceEntry && keyParts.length <= 2) {
-        continue;
-      }
-
-      for (let i = 0; i < keyParts.length; i++) {
-        const key = keyParts.slice(0, i + 1).join('#');
-        const hoisted = this.tree.get(key);
-        invariant(hoisted, `expected hoisted manifest for "${key}"`);
-        parts.push(this.config.getFolder(hoisted.pkg));
-        parts.push(keyParts[i]);
-      }
-
-      // Check if the destination is pointing to a sub folder of the virtualManifestName
-      // e.g. _project_/node_modules/workspace-aggregator-123456/node_modules/workspaceChild/node_modules/dependency
-      // This probably happened because the hoister was not able to hoist the workspace child to the root
-      // So we have to change the folder to the workspace package location
-      if (this.workspaceLayout && isWorkspaceEntry) {
-        const wspPkg = this.workspaceLayout.workspaces[keyParts[1]];
-        invariant(wspPkg, `expected workspace package to exist for "${keyParts[1]}"`);
-        parts.splice(0, 4, wspPkg.loc);
-      } else {
-        if (this.config.modulesFolder) {
-          // remove the first part which will be the folder name and replace it with a
-          // hardcoded modules folder
-          parts.splice(0, 1, this.config.modulesFolder);
-        } else {
-          // first part will be the registry-specific module folder
-          parts.splice(0, 0, this.config.lockfileFolder);
-        }
-      }
-
-      const shallowLocs = [];
-      info.shallowPaths.forEach(shallowPath => {
-        const shallowCopyParts = parts.slice();
-        shallowCopyParts[0] = this.config.cwd;
-        if (this.config.modulesFolder) {
-          //add back the module folder name for the shallow installation
-          const treeEntry = this.tree.get(keyParts[0]);
-          invariant(treeEntry, 'expected treeEntry for ' + keyParts[0]);
-          const moduleFolderName = this.config.getFolder(treeEntry.pkg);
-          shallowCopyParts.splice(1, 0, moduleFolderName);
-        }
-
-        if (shallowPath) {
-          const targetWorkspace = this.config.focusedWorkspaceName;
-          const treeEntry = this.tree.get(`${targetWorkspace}#${shallowPath}`) || this.tree.get(shallowPath);
-          invariant(treeEntry, 'expected treeEntry for ' + shallowPath);
-          const moduleFolderName = this.config.getFolder(treeEntry.pkg);
-          shallowCopyParts.splice(1, 0, moduleFolderName, shallowPath);
-        }
-        shallowLocs.push(path.join(...shallowCopyParts));
-      });
-
-      const loc = path.join(...parts);
-      flatTree.push([loc, info]);
-      shallowLocs.forEach(shallowLoc => {
-        const newManifest = (0, (_extends2 || _load_extends()).default)({}, info, { isShallow: true });
-        flatTree.push([shallowLoc, newManifest]);
-      });
-    }
-
-    // remove ignored modules from the tree
-    const visibleFlatTree = [];
-    for (var _iterator12 = flatTree, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-      var _ref15;
-
-      if (_isArray12) {
-        if (_i12 >= _iterator12.length) break;
-        _ref15 = _iterator12[_i12++];
-      } else {
-        _i12 = _iterator12.next();
-        if (_i12.done) break;
-        _ref15 = _i12.value;
-      }
-
-      const _ref14 = _ref15;
-      const loc = _ref14[0];
-      const info = _ref14[1];
-
-      const ref = info.pkg._reference;
-      invariant(ref, 'expected reference');
-      if (!info.isRequired) {
-        info.addHistory('Deleted as this module was ignored');
-      } else {
-        visibleFlatTree.push([loc, info]);
-      }
-    }
-    return visibleFlatTree;
-  }
-}
-
-exports.default = PackageHoister;
-const WS_ROOT_ALIAS = '_project_';
-class NohoistResolver {
-  constructor(config, resolver) {
-    this.initNohoist = (info, parent) => {
-      let parentNohoistList;
-      let originalParentPath = info.originalParentPath;
-
-      if (parent) {
-        parentNohoistList = parent.nohoistList;
-        originalParentPath = this._originalPath(parent);
-      } else {
-        invariant(this._isTopPackage(info), `${info.key} doesn't have parent nor a top package`);
-        if (info.pkg.name !== this._wsRootPackageName) {
-          parentNohoistList = this._wsRootNohoistList;
-          originalParentPath = this._wsRootPackageName || '';
-        }
-      }
-
-      info.originalParentPath = originalParentPath;
-      let nohoistList = this._extractNohoistList(info.pkg, this._originalPath(info)) || [];
-      if (parentNohoistList) {
-        nohoistList = nohoistList.concat(parentNohoistList);
-      }
-      info.nohoistList = nohoistList.length > 0 ? nohoistList : null;
-      info.isNohoist = this._isNohoist(info);
-    };
-
-    this.highestHoistingPoint = info => {
-      return info.isNohoist && info.parts.length > 1 ? 1 : null;
-    };
-
-    this._isNohoist = info => {
-      if (this._isTopPackage(info)) {
-        return false;
-      }
-      if (info.nohoistList && info.nohoistList.length > 0 && (_micromatch || _load_micromatch()).default.any(this._originalPath(info), info.nohoistList)) {
-        return true;
-      }
-      if (this._config.plugnplayEnabled) {
-        return true;
-      }
-      return false;
-    };
-
-    this._isRootPackage = pkg => {
-      return pkg.name === this._wsRootPackageName;
-    };
-
-    this._originalPath = info => {
-      return this._makePath(info.originalParentPath, info.pkg.name);
-    };
-
-    this._isTopPackage = info => {
-      const parentParts = info.parts.slice(0, -1);
-      const result = !parentParts || parentParts.length <= 0 || parentParts.length === 1 && parentParts[0] === this._wsRootPackageName;
-      return result;
-    };
-
-    this._isLink = info => {
-      return info.pkg._remote != null && LINK_TYPES.has(info.pkg._remote.type);
-    };
-
-    this._extractNohoistList = (pkg, pathPrefix) => {
-      let nohoistList;
-      const ws = this._config.getWorkspaces(pkg);
-
-      if (ws && ws.nohoist) {
-        nohoistList = ws.nohoist.map(p => this._makePath(pathPrefix, p));
-      }
-      return nohoistList;
-    };
-
-    this._resolver = resolver;
-    this._config = config;
-    if (resolver.workspaceLayout) {
-      this._wsRootPackageName = resolver.workspaceLayout.virtualManifestName;
-
-      var _resolver$workspaceLa = resolver.workspaceLayout.getWorkspaceManifest(this._wsRootPackageName);
-
-      const manifest = _resolver$workspaceLa.manifest;
-
-      this._wsRootNohoistList = this._extractNohoistList(manifest, manifest.name);
-    }
-  }
-
-  /**
-   * examine the top level packages to find the root package
-   */
-
-
-  /**
-   * find the highest hoisting point for the given HoistManifest.
-   * algorithm: a nohoist package should never be hoisted beyond the top of its branch, i.e.
-   * the first element of its parts. Therefore the highest possible hoisting index is 1,
-   * unless the package has only 1 part (itself), in such case returns null just like any hoisted package
-   *
-   */
-
-  // private functions
-
-  _makePath(...args) {
-    const parts = args.map(s => s === this._wsRootPackageName ? WS_ROOT_ALIAS : s);
-    const result = parts.join('/');
-    return result[0] === '/' ? result : '/' + result;
-  }
-
-  // extract nohoist from package.json then prefix them with branch path
-  // so we can matched against the branch tree ("originalPath") later
-}
-
-exports.NohoistResolver = NohoistResolver;
-
-/***/ }),
-/* 557 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _config;
-
-function _load_config() {
-  return _config = _interopRequireDefault(__webpack_require__(162));
-}
-
-var _executeLifecycleScript;
-
-function _load_executeLifecycleScript() {
-  return _executeLifecycleScript = _interopRequireDefault(__webpack_require__(111));
-}
-
-var _crypto;
-
-function _load_crypto() {
-  return _crypto = _interopRequireWildcard(__webpack_require__(168));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _packageNameUtils;
-
-function _load_packageNameUtils() {
-  return _packageNameUtils = __webpack_require__(222);
-}
-
-var _pack;
-
-function _load_pack() {
-  return _pack = __webpack_require__(166);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const fs = __webpack_require__(5);
-
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-
-const INSTALL_STAGES = ['preinstall', 'install', 'postinstall'];
-
-class PackageInstallScripts {
-  constructor(config, resolver, force) {
-    this.installed = 0;
-    this.resolver = resolver;
-    this.reporter = config.reporter;
-    this.config = config;
-    this.force = force;
-    this.artifacts = {};
-  }
-
-  setForce(force) {
-    this.force = force;
-  }
-
-  setArtifacts(artifacts) {
-    this.artifacts = artifacts;
-  }
-
-  getArtifacts() {
-    return this.artifacts;
-  }
-
-  getInstallCommands(pkg) {
-    const scripts = pkg.scripts;
-    if (scripts) {
-      const cmds = [];
-      for (var _iterator = INSTALL_STAGES, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const stage = _ref;
-
-        const cmd = scripts[stage];
-        if (cmd) {
-          cmds.push([stage, cmd]);
-        }
-      }
-      return cmds;
-    } else {
-      return [];
-    }
-  }
-
-  walk(loc) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const files = yield (_fs || _load_fs()).walk(loc, null, new Set(_this.config.registryFolders));
-      const mtimes = new Map();
-      for (var _iterator2 = files, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref2 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref2 = _i2.value;
-        }
-
-        const file = _ref2;
-
-        mtimes.set(file.relative, file.mtime);
-      }
-      return mtimes;
-    })();
-  }
-
-  saveBuildArtifacts(loc, pkg, beforeFiles, spinner) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const afterFiles = yield _this2.walk(loc);
-
-      // work out what files have been created/modified
-      const buildArtifacts = [];
-      for (var _iterator3 = afterFiles, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref4 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref4 = _i3.value;
-        }
-
-        const _ref3 = _ref4;
-        const file = _ref3[0];
-        const mtime = _ref3[1];
-
-        if (!beforeFiles.has(file) || beforeFiles.get(file) !== mtime) {
-          buildArtifacts.push(file);
-        }
-      }
-
-      if (!buildArtifacts.length) {
-        // nothing else to do here since we have no build artifacts
-        return;
-      }
-
-      // set build artifacts
-      const ref = pkg._reference;
-      invariant(ref, 'expected reference');
-      _this2.artifacts[`${pkg.name}@${pkg.version}`] = buildArtifacts;
-    })();
-  }
-
-  install(cmds, pkg, spinner) {
-    var _this3 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const ref = pkg._reference;
-      invariant(ref, 'expected reference');
-      const locs = ref.locations;
-
-      let updateProgress;
-
-      if (cmds.length > 0) {
-        updateProgress = function updateProgress(data) {
-          const dataStr = data.toString() // turn buffer into string
-          .trim(); // trim whitespace
-
-          invariant(spinner && spinner.tick, 'We should have spinner and its ticker here');
-          if (dataStr) {
-            spinner.tick(dataStr
-            // Only get the last line
-            .substr(dataStr.lastIndexOf('\n') + 1)
-            // change tabs to spaces as they can interfere with the console
-            .replace(/\t/g, ' '));
-          }
-        };
-      }
-
-      try {
-        for (var _iterator4 = cmds, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref6;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref6 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref6 = _i4.value;
-          }
-
-          const _ref5 = _ref6;
-          const stage = _ref5[0];
-          const cmd = _ref5[1];
-
-          yield Promise.all(locs.map((() => {
-            var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-              var _ref8 = yield (0, (_executeLifecycleScript || _load_executeLifecycleScript()).default)({
-                stage,
-                config: _this3.config,
-                cwd: loc,
-                cmd,
-                isInteractive: false,
-                updateProgress
-              });
-
-              const stdout = _ref8.stdout;
-
-              _this3.reporter.verbose(stdout);
-            });
-
-            return function (_x) {
-              return _ref7.apply(this, arguments);
-            };
-          })()));
-        }
-      } catch (err) {
-        err.message = `${locs.join(', ')}: ${err.message}`;
-
-        invariant(ref, 'expected reference');
-
-        if (ref.optional) {
-          ref.ignore = true;
-          ref.incompatible = true;
-          _this3.reporter.warn(_this3.reporter.lang('optionalModuleScriptFail', err.message));
-          _this3.reporter.info(_this3.reporter.lang('optionalModuleFail'));
-
-          // Cleanup node_modules
-          try {
-            yield Promise.all(locs.map((() => {
-              var _ref9 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-                yield (_fs || _load_fs()).unlink(loc);
-              });
-
-              return function (_x2) {
-                return _ref9.apply(this, arguments);
-              };
-            })()));
-          } catch (e) {
-            _this3.reporter.error(_this3.reporter.lang('optionalModuleCleanupFail', e.message));
-          }
-        } else {
-          throw err;
-        }
-      }
-    })();
-  }
-
-  packageCanBeInstalled(pkg) {
-    const cmds = this.getInstallCommands(pkg);
-    if (!cmds.length) {
-      return false;
-    }
-    if (this.config.packBuiltPackages && pkg.prebuilt2Variants) {
-      for (const variant in pkg.prebuilt2Variants) {
-        if (pkg._remote && pkg._remote.reference && pkg._remote.reference.includes(variant)) {
-          return false;
-        }
-      }
-    }
-    const ref = pkg._reference;
-    invariant(ref, 'Missing package reference');
-    if (!ref.fresh && !this.force) {
-      // this package hasn't been touched
-      return false;
-    }
-
-    // Don't run lifecycle scripts for hoisted packages
-    if (!ref.locations.length) {
-      return false;
-    }
-
-    // we haven't actually written this module out
-    if (ref.ignore) {
-      return false;
-    }
-    return true;
-  }
-
-  runCommand(spinner, pkg) {
-    var _this4 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const cmds = _this4.getInstallCommands(pkg);
-      spinner.setPrefix(++_this4.installed, pkg.name);
-      yield _this4.install(cmds, pkg, spinner);
-    })();
-  }
-
-  // detect if there is a circularDependency in the dependency tree
-  detectCircularDependencies(root, seenManifests, pkg) {
-    const ref = pkg._reference;
-    invariant(ref, 'expected reference');
-
-    const deps = ref.dependencies;
-    for (var _iterator5 = deps, _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-      var _ref10;
-
-      if (_isArray5) {
-        if (_i5 >= _iterator5.length) break;
-        _ref10 = _iterator5[_i5++];
-      } else {
-        _i5 = _iterator5.next();
-        if (_i5.done) break;
-        _ref10 = _i5.value;
-      }
-
-      const dep = _ref10;
-
-      const pkgDep = this.resolver.getStrictResolvedPattern(dep);
-      if (seenManifests.has(pkgDep)) {
-        // there is a cycle but not with the root
-        continue;
-      }
-      seenManifests.add(pkgDep);
-      // found a dependency pointing to root
-      if (pkgDep == root) {
-        return true;
-      }
-      if (this.detectCircularDependencies(root, seenManifests, pkgDep)) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  // find the next package to be installed
-  findInstallablePackage(workQueue, installed) {
-    for (var _iterator6 = workQueue, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray6) {
-        if (_i6 >= _iterator6.length) break;
-        _ref11 = _iterator6[_i6++];
-      } else {
-        _i6 = _iterator6.next();
-        if (_i6.done) break;
-        _ref11 = _i6.value;
-      }
-
-      const pkg = _ref11;
-
-      const ref = pkg._reference;
-      invariant(ref, 'expected reference');
-      const deps = ref.dependencies;
-
-      let dependenciesFulfilled = true;
-      for (var _iterator7 = deps, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-        var _ref12;
-
-        if (_isArray7) {
-          if (_i7 >= _iterator7.length) break;
-          _ref12 = _iterator7[_i7++];
-        } else {
-          _i7 = _iterator7.next();
-          if (_i7.done) break;
-          _ref12 = _i7.value;
-        }
-
-        const dep = _ref12;
-
-        const pkgDep = this.resolver.getStrictResolvedPattern(dep);
-        if (!installed.has(pkgDep)) {
-          dependenciesFulfilled = false;
-          break;
-        }
-      }
-
-      // all dependencies are installed
-      if (dependenciesFulfilled) {
-        return pkg;
-      }
-
-      // detect circular dependency, mark this pkg as installable to break the circle
-      if (this.detectCircularDependencies(pkg, new Set(), pkg)) {
-        return pkg;
-      }
-    }
-    return null;
-  }
-
-  worker(spinner, workQueue, installed, waitQueue) {
-    var _this5 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      while (workQueue.size > 0) {
-        // find a installable package
-        const pkg = _this5.findInstallablePackage(workQueue, installed);
-
-        // can't find a package to install, register into waitQueue
-        if (pkg == null) {
-          spinner.clear();
-          yield new Promise(function (resolve) {
-            return waitQueue.add(resolve);
-          });
-          continue;
-        }
-
-        // found a package to install
-        workQueue.delete(pkg);
-        if (_this5.packageCanBeInstalled(pkg)) {
-          yield _this5.runCommand(spinner, pkg);
-        }
-        installed.add(pkg);
-        for (var _iterator8 = waitQueue, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-          var _ref13;
-
-          if (_isArray8) {
-            if (_i8 >= _iterator8.length) break;
-            _ref13 = _iterator8[_i8++];
-          } else {
-            _i8 = _iterator8.next();
-            if (_i8.done) break;
-            _ref13 = _i8.value;
-          }
-
-          const workerResolve = _ref13;
-
-          workerResolve();
-        }
-        waitQueue.clear();
-      }
-    })();
-  }
-
-  init(seedPatterns) {
-    var _this6 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const workQueue = new Set();
-      const installed = new Set();
-      const pkgs = _this6.resolver.getTopologicalManifests(seedPatterns);
-      let installablePkgs = 0;
-      // A map to keep track of what files exist before installation
-      const beforeFilesMap = new Map();
-      for (var _iterator9 = pkgs, _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-        var _ref14;
-
-        if (_isArray9) {
-          if (_i9 >= _iterator9.length) break;
-          _ref14 = _iterator9[_i9++];
-        } else {
-          _i9 = _iterator9.next();
-          if (_i9.done) break;
-          _ref14 = _i9.value;
-        }
-
-        const pkg = _ref14;
-
-        if (_this6.packageCanBeInstalled(pkg)) {
-          const ref = pkg._reference;
-          invariant(ref, 'expected reference');
-          yield Promise.all(ref.locations.map((() => {
-            var _ref19 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (loc) {
-              beforeFilesMap.set(loc, (yield _this6.walk(loc)));
-              installablePkgs += 1;
-            });
-
-            return function (_x6) {
-              return _ref19.apply(this, arguments);
-            };
-          })()));
-        }
-        workQueue.add(pkg);
-      }
-
-      const set = _this6.reporter.activitySet(installablePkgs, Math.min(installablePkgs, _this6.config.childConcurrency));
-
-      // waitQueue acts like a semaphore to allow workers to register to be notified
-      // when there are more work added to the work queue
-      const waitQueue = new Set();
-      yield Promise.all(set.spinners.map(function (spinner) {
-        return _this6.worker(spinner, workQueue, installed, waitQueue);
-      }));
-      // generate built package as prebuilt2 one for offline mirror
-      const offlineMirrorPath = _this6.config.getOfflineMirrorPath();
-      if (_this6.config.packBuiltPackages && offlineMirrorPath) {
-        for (var _iterator10 = pkgs, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-          var _ref15;
-
-          if (_isArray10) {
-            if (_i10 >= _iterator10.length) break;
-            _ref15 = _iterator10[_i10++];
-          } else {
-            _i10 = _iterator10.next();
-            if (_i10.done) break;
-            _ref15 = _i10.value;
-          }
-
-          const pkg = _ref15;
-
-          if (_this6.packageCanBeInstalled(pkg)) {
-            let prebuilt2Path = path.join(offlineMirrorPath, 'prebuilt2');
-            yield (_fs || _load_fs()).mkdirp(prebuilt2Path);
-            const prebuilt2Filename = (0, (_packageNameUtils || _load_packageNameUtils()).getPlatformSpecificPackageFilename)(pkg);
-            prebuilt2Path = path.join(prebuilt2Path, prebuilt2Filename + '.tgz');
-            const ref = pkg._reference;
-            invariant(ref, 'expected reference');
-            const builtPackagePaths = ref.locations;
-
-            yield Promise.all(builtPackagePaths.map((() => {
-              var _ref16 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (builtPackagePath) {
-                // don't use pack command, we want to avoid the file filters logic
-                const stream = yield (0, (_pack || _load_pack()).packWithIgnoreAndHeaders)(builtPackagePath);
-
-                const hash = yield new Promise(function (resolve, reject) {
-                  const validateStream = new (_crypto || _load_crypto()).HashStream();
-                  stream.pipe(validateStream).pipe(fs.createWriteStream(prebuilt2Path)).on('error', reject).on('close', function () {
-                    return resolve(validateStream.getHash());
-                  });
-                });
-                pkg.prebuilt2Variants = pkg.prebuilt2Variants || {};
-                pkg.prebuilt2Variants[prebuilt2Filename] = hash;
-              });
-
-              return function (_x3) {
-                return _ref16.apply(this, arguments);
-              };
-            })()));
-          }
-        }
-      } else {
-        // cache all build artifacts
-        for (var _iterator11 = pkgs, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-          var _ref17;
-
-          if (_isArray11) {
-            if (_i11 >= _iterator11.length) break;
-            _ref17 = _iterator11[_i11++];
-          } else {
-            _i11 = _iterator11.next();
-            if (_i11.done) break;
-            _ref17 = _i11.value;
-          }
-
-          const pkg = _ref17;
-
-          if (_this6.packageCanBeInstalled(pkg)) {
-            const ref = pkg._reference;
-            invariant(ref, 'expected reference');
-            const beforeFiles = ref.locations.map(function (loc) {
-              return beforeFilesMap.get(loc);
-            });
-            yield Promise.all(beforeFiles.map((() => {
-              var _ref18 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (b, index) {
-                invariant(b, 'files before installation should always be recorded');
-                yield _this6.saveBuildArtifacts(ref.locations[index], pkg, b, set.spinners[0]);
-              });
-
-              return function (_x4, _x5) {
-                return _ref18.apply(this, arguments);
-              };
-            })()));
-          }
-        }
-      }
-
-      set.end();
-    })();
-  }
-}
-exports.default = PackageInstallScripts;
-
-/***/ }),
-/* 558 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const objectPath = __webpack_require__(304);
-
-const path = __webpack_require__(0);
-
-class BaseRegistry {
-  constructor(cwd, registries, requestManager, reporter, enableDefaultRc, extraneousRcFiles) {
-    this.reporter = reporter;
-    this.requestManager = requestManager;
-    this.registries = registries;
-    this.config = {};
-    this.folder = '';
-    this.token = '';
-    this.loc = '';
-    this.cwd = cwd;
-    this.enableDefaultRc = enableDefaultRc;
-    this.extraneousRcFiles = extraneousRcFiles;
-  }
-
-  // the filename to use for package metadata
-
-
-  //
-
-
-  //
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  //
-
-
-  // absolute folder name to insert modules
-
-
-  // relative folder name to put these modules
-
-
-  setToken(token) {
-    this.token = token;
-  }
-
-  setOtp(otp) {
-    this.otp = otp;
-  }
-
-  getOption(key) {
-    return this.config[key];
-  }
-
-  getAvailableRegistries() {
-    const config = this.config;
-    return Object.keys(config).reduce((registries, option) => {
-      if (option === 'registry' || option.split(':')[1] === 'registry') {
-        registries.push(config[option]);
-      }
-      return registries;
-    }, []);
-  }
-
-  loadConfig() {
-    return Promise.resolve();
-  }
-
-  checkOutdated(config, name, range) {
-    return Promise.reject(new Error('unimplemented'));
-  }
-
-  saveHomeConfig(config) {
-    return Promise.reject(new Error('unimplemented'));
-  }
-
-  request(pathname, opts = {}) {
-    return this.requestManager.request((0, (_extends2 || _load_extends()).default)({
-      url: pathname
-    }, opts));
-  }
-
-  init(overrides = {}) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      _this.mergeEnv('yarn_');
-      yield _this.loadConfig();
-
-      for (var _iterator = Object.keys(overrides), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref = _i.value;
-        }
-
-        const override = _ref;
-
-        const val = overrides[override];
-
-        if (val !== undefined) {
-          _this.config[override] = val;
-        }
-      }
-      _this.loc = path.join(_this.cwd, _this.folder);
-    })();
-  }
-
-  static normalizeConfig(config) {
-    for (const key in config) {
-      config[key] = BaseRegistry.normalizeConfigOption(config[key]);
-    }
-    return config;
-  }
-
-  static normalizeConfigOption(val) {
-    if (val === 'true') {
-      return true;
-    } else if (val === 'false') {
-      return false;
-    } else {
-      return val;
-    }
-  }
-
-  mergeEnv(prefix) {
-    // try environment variables
-    for (const envKey in process.env) {
-      let key = envKey.toLowerCase();
-
-      // only accept keys prefixed with the prefix
-      if (key.indexOf(prefix.toLowerCase()) !== 0) {
-        continue;
-      }
-
-      const val = BaseRegistry.normalizeConfigOption(process.env[envKey]);
-
-      // remove config prefix
-      key = (0, (_misc || _load_misc()).removePrefix)(key, prefix.toLowerCase());
-
-      // replace dunders with dots
-      key = key.replace(/__/g, '.');
-
-      // replace underscores with dashes ignoring keys that start with an underscore
-      key = key.replace(/([^_])_/g, '$1-');
-
-      // set it via a path
-      objectPath.set(this.config, key, val);
-    }
-  }
-}
-exports.default = BaseRegistry;
-
-/***/ }),
-/* 559 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.DEFAULTS = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _npmRegistry;
-
-function _load_npmRegistry() {
-  return _npmRegistry = _interopRequireDefault(__webpack_require__(88));
-}
-
-var _lockfile;
-
-function _load_lockfile() {
-  return _lockfile = __webpack_require__(19);
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-var _yarnVersion;
-
-function _load_yarnVersion() {
-  return _yarnVersion = __webpack_require__(120);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const userHome = __webpack_require__(67).default;
-const path = __webpack_require__(0);
-
-const DEFAULTS = exports.DEFAULTS = {
-  'version-tag-prefix': 'v',
-  'version-git-tag': true,
-  'version-commit-hooks': true,
-  'version-git-sign': false,
-  'version-git-message': 'v%s',
-
-  'init-version': '1.0.0',
-  'init-license': 'MIT',
-
-  'save-prefix': '^',
-  'bin-links': true,
-  'ignore-scripts': false,
-  'ignore-optional': false,
-  registry: (_constants || _load_constants()).YARN_REGISTRY,
-  'strict-ssl': true,
-  'user-agent': [`yarn/${(_yarnVersion || _load_yarnVersion()).version}`, 'npm/?', `node/${process.version}`, process.platform, process.arch].join(' ')
-};
-
-const RELATIVE_KEYS = ['yarn-offline-mirror', 'cache-folder', 'global-folder', 'offline-cache-folder', 'yarn-path'];
-const FOLDER_KEY = ['yarn-offline-mirror', 'cache-folder', 'global-folder', 'offline-cache-folder'];
-
-const npmMap = {
-  'version-git-sign': 'sign-git-tag',
-  'version-tag-prefix': 'tag-version-prefix',
-  'version-git-tag': 'git-tag-version',
-  'version-commit-hooks': 'commit-hooks',
-  'version-git-message': 'message'
-};
-
-class YarnRegistry extends (_npmRegistry || _load_npmRegistry()).default {
-  constructor(cwd, registries, requestManager, reporter, enableDefaultRc, extraneousRcFiles) {
-    super(cwd, registries, requestManager, reporter, enableDefaultRc, extraneousRcFiles);
-
-    this.homeConfigLoc = path.join(userHome, '.yarnrc');
-    this.homeConfig = {};
-  }
-
-  getOption(key) {
-    let val = this.config[key];
-
-    // if this isn't set in a yarn config, then use npm
-    if (typeof val === 'undefined') {
-      val = this.registries.npm.getOption(npmMap[key]);
-    }
-
-    if (typeof val === 'undefined') {
-      val = this.registries.npm.getOption(key);
-    }
-
-    // if this isn't set in a yarn config or npm config, then use the default (or undefined)
-    if (typeof val === 'undefined') {
-      val = DEFAULTS[key];
-    }
-
-    return val;
-  }
-
-  loadConfig() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const locations = yield _this.getPossibleConfigLocations('yarnrc', _this.reporter);
-
-      for (var _iterator = locations, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref2 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref2 = _i.value;
-        }
-
-        const _ref = _ref2;
-        const isHome = _ref[0];
-        const loc = _ref[1];
-        const file = _ref[2];
-
-        var _parse = (0, (_lockfile || _load_lockfile()).parse)(file, loc);
-
-        const config = _parse.object;
-
-
-        if (isHome) {
-          _this.homeConfig = config;
-        }
-
-        for (var _iterator2 = RELATIVE_KEYS, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-          var _ref3;
-
-          if (_isArray2) {
-            if (_i2 >= _iterator2.length) break;
-            _ref3 = _iterator2[_i2++];
-          } else {
-            _i2 = _iterator2.next();
-            if (_i2.done) break;
-            _ref3 = _i2.value;
-          }
-
-          const key = _ref3;
-
-          const valueLoc = config[key];
-
-          if (!_this.config[key] && valueLoc) {
-            const resolvedLoc = config[key] = path.resolve(path.dirname(loc), valueLoc);
-
-            if (FOLDER_KEY.includes(key)) {
-              yield (_fs || _load_fs()).mkdirp(resolvedLoc);
-            }
-          }
-        }
-
-        // merge with any existing environment variables
-        const env = config.env;
-        if (env) {
-          const existingEnv = _this.config.env;
-          if (existingEnv) {
-            _this.config.env = Object.assign({}, env, existingEnv);
-          }
-        }
-
-        _this.config = Object.assign({}, config, _this.config);
-      }
-
-      // default yarn config
-      _this.config = Object.assign({}, DEFAULTS, _this.config);
-    })();
-  }
-
-  saveHomeConfig(config) {
-    var _this2 = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      YarnRegistry.normalizeConfig(config);
-
-      for (const key in config) {
-        const val = config[key];
-
-        // if the current config key was taken from home config then update
-        // the global config
-        if (_this2.homeConfig[key] === _this2.config[key]) {
-          _this2.config[key] = val;
-        }
-
-        // update just the home config
-        _this2.homeConfig[key] = config[key];
-      }
-
-      yield (_fs || _load_fs()).writeFilePreservingEol(_this2.homeConfigLoc, `${(0, (_lockfile || _load_lockfile()).stringify)(_this2.homeConfig)}\n`);
-    })();
-  }
-}
-exports.default = YarnRegistry;
-YarnRegistry.filename = 'yarn.json';
-
-/***/ }),
-/* 560 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _jsonReporter;
-
-function _load_jsonReporter() {
-  return _jsonReporter = _interopRequireDefault(__webpack_require__(213));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class BufferReporter extends (_jsonReporter || _load_jsonReporter()).default {
-  constructor(opts) {
-    super(opts);
-    this._buffer = [];
-  }
-
-  _dump(type, data, error) {
-    this._buffer.push({
-      type,
-      data,
-      error: !!error
-    });
-  }
-
-  getBuffer() {
-    return this._buffer;
-  }
-
-  getBufferText() {
-    return this._buffer.map(({ data }) => typeof data === 'string' ? data : JSON.stringify(data)).join('');
-  }
-
-  getBufferJson() {
-    return JSON.parse(this.getBufferText());
-  }
-}
-exports.default = BufferReporter;
-
-/***/ }),
-/* 561 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = _interopRequireDefault(__webpack_require__(108));
-}
-
-var _progressBar;
-
-function _load_progressBar() {
-  return _progressBar = _interopRequireDefault(__webpack_require__(563));
-}
-
-var _spinnerProgress;
-
-function _load_spinnerProgress() {
-  return _spinnerProgress = _interopRequireDefault(__webpack_require__(564));
-}
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(212);
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-var _treeHelper;
-
-function _load_treeHelper() {
-  return _treeHelper = __webpack_require__(562);
-}
-
-var _inquirer;
-
-function _load_inquirer() {
-  return _inquirer = _interopRequireDefault(__webpack_require__(276));
-}
-
-var _cliTable;
-
-function _load_cliTable() {
-  return _cliTable = _interopRequireDefault(__webpack_require__(602));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var _require = __webpack_require__(3);
-
-const inspect = _require.inspect;
-
-const readline = __webpack_require__(197);
-const chalk = __webpack_require__(30);
-const stripAnsi = __webpack_require__(329);
-const read = __webpack_require__(790);
-const tty = __webpack_require__(104);
-
-const AUDIT_COL_WIDTHS = [15, 62];
-
-const auditSeverityColors = {
-  info: chalk.bold,
-  low: chalk.bold,
-  moderate: chalk.yellow,
-  high: chalk.red,
-  critical: chalk.bgRed
-};
-
-// fixes bold on windows
-if (process.platform === 'win32' && !(process.env.TERM && /^xterm/i.test(process.env.TERM))) {
-  chalk.bold._styles[0].close += '\u001b[m';
-}
-
-class ConsoleReporter extends (_baseReporter || _load_baseReporter()).default {
-  constructor(opts) {
-    super(opts);
-
-    this._lastCategorySize = 0;
-    this._spinners = new Set();
-    this.format = chalk;
-    this.format.stripColor = stripAnsi;
-    this.isSilent = !!opts.isSilent;
-  }
-
-  _prependEmoji(msg, emoji) {
-    if (this.emoji && emoji && this.isTTY) {
-      msg = `${emoji}  ${msg}`;
-    }
-    return msg;
-  }
-
-  _logCategory(category, color, msg) {
-    this._lastCategorySize = category.length;
-    this._log(`${this.format[color](category)} ${msg}`);
-  }
-
-  _verbose(msg) {
-    this._logCategory('verbose', 'grey', `${process.uptime()} ${msg}`);
-  }
-
-  _verboseInspect(obj) {
-    this.inspect(obj);
-  }
-
-  close() {
-    for (var _iterator = this._spinners, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const spinner = _ref;
-
-      spinner.stop();
-    }
-    this._spinners.clear();
-    this.stopProgress();
-    super.close();
-  }
-
-  table(head, body) {
-    //
-    head = head.map(field => this.format.underline(field));
-
-    //
-    const rows = [head].concat(body);
-
-    // get column widths
-    const cols = [];
-    for (let i = 0; i < head.length; i++) {
-      const widths = rows.map(row => this.format.stripColor(row[i]).length);
-      cols[i] = Math.max(...widths);
-    }
-
-    //
-    const builtRows = rows.map(row => {
-      for (let i = 0; i < row.length; i++) {
-        const field = row[i];
-        const padding = cols[i] - this.format.stripColor(field).length;
-
-        row[i] = field + ' '.repeat(padding);
-      }
-      return row.join(' ');
-    });
-
-    this.log(builtRows.join('\n'));
-  }
-
-  step(current, total, msg, emoji) {
-    msg = this._prependEmoji(msg, emoji);
-
-    if (msg.endsWith('?')) {
-      msg = `${(0, (_misc || _load_misc()).removeSuffix)(msg, '?')}...?`;
-    } else {
-      msg += '...';
-    }
-
-    this.log(`${this.format.dim(`[${current}/${total}]`)} ${msg}`);
-  }
-
-  inspect(value) {
-    if (typeof value !== 'number' && typeof value !== 'string') {
-      value = inspect(value, {
-        breakLength: 0,
-        colors: this.isTTY,
-        depth: null,
-        maxArrayLength: null
-      });
-    }
-
-    this.log(String(value), { force: true });
-  }
-
-  list(key, items, hints) {
-    const gutterWidth = (this._lastCategorySize || 2) - 1;
-
-    if (hints) {
-      for (var _iterator2 = items, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref2 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref2 = _i2.value;
-        }
-
-        const item = _ref2;
-
-        this._log(`${' '.repeat(gutterWidth)}- ${this.format.bold(item)}`);
-        this._log(`  ${' '.repeat(gutterWidth)} ${hints[item]}`);
-      }
-    } else {
-      for (var _iterator3 = items, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref3 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref3 = _i3.value;
-        }
-
-        const item = _ref3;
-
-        this._log(`${' '.repeat(gutterWidth)}- ${item}`);
-      }
-    }
-  }
-
-  header(command, pkg) {
-    this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
-  }
-
-  footer(showPeakMemory) {
-    this.stopProgress();
-
-    const totalTime = (this.getTotalTime() / 1000).toFixed(2);
-    let msg = `Done in ${totalTime}s.`;
-    if (showPeakMemory) {
-      const peakMemory = (this.peakMemory / 1024 / 1024).toFixed(2);
-      msg += ` Peak memory usage ${peakMemory}MB.`;
-    }
-    this.log(this._prependEmoji(msg, '✨'));
-  }
-
-  log(msg, { force = false } = {}) {
-    this._lastCategorySize = 0;
-    this._log(msg, { force });
-  }
-
-  _log(msg, { force = false } = {}) {
-    if (this.isSilent && !force) {
-      return;
-    }
-    (0, (_util || _load_util()).clearLine)(this.stdout);
-    this.stdout.write(`${msg}\n`);
-  }
-
-  success(msg) {
-    this._logCategory('success', 'green', msg);
-  }
-
-  error(msg) {
-    (0, (_util || _load_util()).clearLine)(this.stderr);
-    this.stderr.write(`${this.format.red('error')} ${msg}\n`);
-  }
-
-  info(msg) {
-    this._logCategory('info', 'blue', msg);
-  }
-
-  command(command) {
-    this.log(this.format.dim(`$ ${command}`));
-  }
-
-  warn(msg) {
-    (0, (_util || _load_util()).clearLine)(this.stderr);
-    this.stderr.write(`${this.format.yellow('warning')} ${msg}\n`);
-  }
-
-  question(question, options = {}) {
-    if (!process.stdout.isTTY) {
-      return Promise.reject(new Error("Can't answer a question unless a user TTY"));
-    }
-
-    return new Promise((resolve, reject) => {
-      read({
-        prompt: `${this.format.dim('question')} ${question}: `,
-        silent: !!options.password,
-        output: this.stdout,
-        input: this.stdin
-      }, (err, answer) => {
-        if (err) {
-          if (err.message === 'canceled') {
-            process.exitCode = 1;
-          }
-          reject(err);
-        } else {
-          if (!answer && options.required) {
-            this.error(this.lang('answerRequired'));
-            resolve(this.question(question, options));
-          } else {
-            resolve(answer);
-          }
-        }
-      });
-    });
-  }
-  // handles basic tree output to console
-  tree(key, trees, { force = false } = {}) {
-    this.stopProgress();
-    //
-    if (this.isSilent && !force) {
-      return;
-    }
-    const output = ({ name, children, hint, color }, titlePrefix, childrenPrefix) => {
-      const formatter = this.format;
-      const out = (0, (_treeHelper || _load_treeHelper()).getFormattedOutput)({
-        prefix: titlePrefix,
-        hint,
-        color,
-        name,
-        formatter
-      });
-      this.stdout.write(out);
-
-      if (children && children.length) {
-        (0, (_treeHelper || _load_treeHelper()).recurseTree)((0, (_treeHelper || _load_treeHelper()).sortTrees)(children), childrenPrefix, output);
-      }
-    };
-    (0, (_treeHelper || _load_treeHelper()).recurseTree)((0, (_treeHelper || _load_treeHelper()).sortTrees)(trees), '', output);
-  }
-
-  activitySet(total, workers) {
-    if (!this.isTTY || this.noProgress) {
-      return super.activitySet(total, workers);
-    }
-
-    const spinners = [];
-    const reporterSpinners = this._spinners;
-
-    for (let i = 1; i < workers; i++) {
-      this.log('');
-    }
-
-    for (let i = 0; i < workers; i++) {
-      const spinner = new (_spinnerProgress || _load_spinnerProgress()).default(this.stderr, i);
-      reporterSpinners.add(spinner);
-      spinner.start();
-
-      let prefix = null;
-      let current = 0;
-      const updatePrefix = () => {
-        spinner.setPrefix(`${this.format.dim(`[${current === 0 ? '-' : current}/${total}]`)} `);
-      };
-      const clear = () => {
-        prefix = null;
-        current = 0;
-        updatePrefix();
-        spinner.setText('waiting...');
-      };
-      clear();
-
-      spinners.unshift({
-        clear,
-
-        setPrefix(_current, _prefix) {
-          current = _current;
-          prefix = _prefix;
-          spinner.setText(prefix);
-          updatePrefix();
-        },
-
-        tick(msg) {
-          if (prefix) {
-            msg = `${prefix}: ${msg}`;
-          }
-          spinner.setText(msg);
-        },
-
-        end() {
-          spinner.stop();
-          reporterSpinners.delete(spinner);
-        }
-      });
-    }
-
-    return {
-      spinners,
-      end: () => {
-        for (var _iterator4 = spinners, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-          var _ref4;
-
-          if (_isArray4) {
-            if (_i4 >= _iterator4.length) break;
-            _ref4 = _iterator4[_i4++];
-          } else {
-            _i4 = _iterator4.next();
-            if (_i4.done) break;
-            _ref4 = _i4.value;
-          }
-
-          const spinner = _ref4;
-
-          spinner.end();
-        }
-        readline.moveCursor(this.stdout, 0, -workers + 1);
-      }
-    };
-  }
-
-  activity() {
-    if (!this.isTTY) {
-      return {
-        tick() {},
-        end() {}
-      };
-    }
-    const reporterSpinners = this._spinners;
-
-    const spinner = new (_spinnerProgress || _load_spinnerProgress()).default(this.stderr);
-    spinner.start();
-
-    reporterSpinners.add(spinner);
-
-    return {
-      tick(name) {
-        spinner.setText(name);
-      },
-
-      end() {
-        spinner.stop();
-        reporterSpinners.delete(spinner);
-      }
-    };
-  }
-
-  select(header, question, options) {
-    if (!this.isTTY) {
-      return Promise.reject(new Error("Can't answer a question unless a user TTY"));
-    }
-
-    const rl = readline.createInterface({
-      input: this.stdin,
-      output: this.stdout,
-      terminal: true
-    });
-
-    const questions = options.map(opt => opt.name);
-    const answers = options.map(opt => opt.value);
-
-    function toIndex(input) {
-      const index = answers.indexOf(input);
-
-      if (index >= 0) {
-        return index;
-      } else {
-        return +input;
-      }
-    }
-
-    return new Promise(resolve => {
-      this.info(header);
-
-      for (let i = 0; i < questions.length; i++) {
-        this.log(`  ${this.format.dim(`${i + 1})`)} ${questions[i]}`);
-      }
-
-      const ask = () => {
-        rl.question(`${question}: `, input => {
-          let index = toIndex(input);
-
-          if (isNaN(index)) {
-            this.log('Not a number');
-            ask();
-            return;
-          }
-
-          if (index <= 0 || index > options.length) {
-            this.log('Outside answer range');
-            ask();
-            return;
-          }
-
-          // get index
-          index--;
-          rl.close();
-          resolve(answers[index]);
-        });
-      };
-
-      ask();
-    });
-  }
-
-  progress(count) {
-    if (this.noProgress || count <= 0) {
-      return function () {
-        // noop
-      };
-    }
-
-    if (!this.isTTY) {
-      return function () {
-        // TODO what should the behaviour here be? we could buffer progress messages maybe
-      };
-    }
-
-    // Clear any potentially old progress bars
-    this.stopProgress();
-
-    const bar = this._progressBar = new (_progressBar || _load_progressBar()).default(count, this.stderr, progress => {
-      if (progress === this._progressBar) {
-        this._progressBar = null;
-      }
-    });
-
-    bar.render();
-
-    return function () {
-      bar.tick();
-    };
-  }
-
-  stopProgress() {
-    if (this._progressBar) {
-      this._progressBar.stop();
-    }
-  }
-
-  prompt(message, choices, options = {}) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      if (!process.stdout.isTTY) {
-        return Promise.reject(new Error("Can't answer a question unless a user TTY"));
-      }
-
-      let pageSize;
-      if (process.stdout instanceof tty.WriteStream) {
-        pageSize = process.stdout.rows - 2;
-      }
-
-      const rl = readline.createInterface({
-        input: _this.stdin,
-        output: _this.stdout,
-        terminal: true
-      });
-
-      // $FlowFixMe: Need to update the type of Inquirer
-      const prompt = (_inquirer || _load_inquirer()).default.createPromptModule({
-        input: _this.stdin,
-        output: _this.stdout
-      });
-
-      var _options$name = options.name;
-      const name = _options$name === undefined ? 'prompt' : _options$name;
-      var _options$type = options.type;
-      const type = _options$type === undefined ? 'input' : _options$type,
-            validate = options.validate;
-
-      const answers = yield prompt([{ name, type, message, choices, pageSize, validate }]);
-
-      rl.close();
-
-      return answers[name];
-    })();
-  }
-
-  auditSummary(auditMetadata) {
-    const totalDependencies = auditMetadata.totalDependencies,
-          vulnerabilities = auditMetadata.vulnerabilities;
-
-    const totalVulnerabilities = vulnerabilities.info + vulnerabilities.low + vulnerabilities.moderate + vulnerabilities.high + vulnerabilities.critical;
-    const summary = this.lang('auditSummary', totalVulnerabilities > 0 ? this.rawText(chalk.red(totalVulnerabilities.toString())) : totalVulnerabilities, totalDependencies);
-    this._log(summary);
-
-    if (totalVulnerabilities) {
-      const severities = [];
-      if (vulnerabilities.info) {
-        severities.push(this.lang('auditInfo', vulnerabilities.info));
-      }
-      if (vulnerabilities.low) {
-        severities.push(this.lang('auditLow', vulnerabilities.low));
-      }
-      if (vulnerabilities.moderate) {
-        severities.push(this.lang('auditModerate', vulnerabilities.moderate));
-      }
-      if (vulnerabilities.high) {
-        severities.push(this.lang('auditHigh', vulnerabilities.high));
-      }
-      if (vulnerabilities.critical) {
-        severities.push(this.lang('auditCritical', vulnerabilities.critical));
-      }
-      this._log(`${this.lang('auditSummarySeverity')} ${severities.join(' | ')}`);
-    }
-  }
-
-  auditAction(recommendation) {
-    const label = recommendation.action.resolves.length === 1 ? 'vulnerability' : 'vulnerabilities';
-    this._log(this.lang('auditResolveCommand', this.rawText(chalk.inverse(recommendation.cmd)), recommendation.action.resolves.length, this.rawText(label)));
-    if (recommendation.isBreaking) {
-      this._log(this.lang('auditSemverMajorChange'));
-    }
-  }
-
-  auditManualReview() {
-    const tableOptions = {
-      colWidths: [78]
-    };
-    const table = new (_cliTable || _load_cliTable()).default(tableOptions);
-    table.push([{
-      content: this.lang('auditManualReview'),
-      vAlign: 'center',
-      hAlign: 'center'
-    }]);
-
-    this._log(table.toString());
-  }
-
-  auditAdvisory(resolution, auditAdvisory) {
-    function colorSeverity(severity, message) {
-      return auditSeverityColors[severity](message || severity);
-    }
-
-    function makeAdvisoryTableRow(patchedIn) {
-      const patchRows = [];
-
-      if (patchedIn) {
-        patchRows.push({ 'Patched in': patchedIn });
-      }
-
-      return [{ [chalk.bold(colorSeverity(auditAdvisory.severity))]: chalk.bold(auditAdvisory.title) }, { Package: auditAdvisory.module_name }, ...patchRows, { 'Dependency of': `${resolution.path.split('>')[0]} ${resolution.dev ? '[dev]' : ''}` }, { Path: resolution.path.split('>').join(' > ') }, { 'More info': `https://www.npmjs.com/advisories/${auditAdvisory.id}` }];
-    }
-
-    const tableOptions = {
-      colWidths: AUDIT_COL_WIDTHS,
-      wordWrap: true
-    };
-    const table = new (_cliTable || _load_cliTable()).default(tableOptions);
-    const patchedIn = auditAdvisory.patched_versions.replace(' ', '') === '<0.0.0' ? 'No patch available' : auditAdvisory.patched_versions;
-    table.push(...makeAdvisoryTableRow(patchedIn));
-    this._log(table.toString());
-  }
-}
-exports.default = ConsoleReporter;
-
-/***/ }),
-/* 562 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.sortTrees = sortTrees;
-exports.recurseTree = recurseTree;
-exports.getFormattedOutput = getFormattedOutput;
-
-
-// public
-
-
-// types
-function sortTrees(trees) {
-  return trees.sort(function (tree1, tree2) {
-    return tree1.name.localeCompare(tree2.name);
-  });
-}
-
-function recurseTree(tree, prefix, recurseFunc) {
-  const treeLen = tree.length;
-  const treeEnd = treeLen - 1;
-  for (let i = 0; i < treeLen; i++) {
-    const atEnd = i === treeEnd;
-    recurseFunc(tree[i], prefix + getLastIndentChar(atEnd), prefix + getNextIndentChar(atEnd));
-  }
-}
-
-function getFormattedOutput(fmt) {
-  const item = formatColor(fmt.color, fmt.name, fmt.formatter);
-  const suffix = getSuffix(fmt.hint, fmt.formatter);
-  return `${fmt.prefix}─ ${item}${suffix}\n`;
-}
-
-function getNextIndentChar(end) {
-  return end ? '   ' : '│  ';
-}
-
-function getLastIndentChar(end) {
-  return end ? '└' : '├';
-}
-
-function getSuffix(hint, formatter) {
-  return hint ? ` (${formatter.grey(hint)})` : '';
-}
-
-function formatColor(color, strToFormat, formatter) {
-  return color ? formatter[color](strToFormat) : strToFormat;
-}
-
-/***/ }),
-/* 563 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(212);
-}
-
-class ProgressBar {
-  constructor(total, stdout = process.stderr, callback) {
-    this.stdout = stdout;
-    this.total = total;
-    this.chars = ProgressBar.bars[0];
-    this.delay = 60;
-    this.curr = 0;
-    this._callback = callback;
-    (0, (_util || _load_util()).clearLine)(stdout);
-  }
-
-  tick() {
-    if (this.curr >= this.total) {
-      return;
-    }
-
-    this.curr++;
-
-    // schedule render
-    if (!this.id) {
-      this.id = setTimeout(() => this.render(), this.delay);
-    }
-  }
-
-  cancelTick() {
-    if (this.id) {
-      clearTimeout(this.id);
-      this.id = null;
-    }
-  }
-
-  stop() {
-    // "stop" by setting current to end so `tick` becomes noop
-    this.curr = this.total;
-
-    this.cancelTick();
-    (0, (_util || _load_util()).clearLine)(this.stdout);
-    if (this._callback) {
-      this._callback(this);
-    }
-  }
-
-  render() {
-    // clear throttle
-    this.cancelTick();
-
-    let ratio = this.curr / this.total;
-    ratio = Math.min(Math.max(ratio, 0), 1);
-
-    // progress without bar
-    let bar = ` ${this.curr}/${this.total}`;
-
-    // calculate size of actual bar
-    // $FlowFixMe: investigate process.stderr.columns flow error
-    const availableSpace = Math.max(0, this.stdout.columns - bar.length - 3);
-    const width = Math.min(this.total, availableSpace);
-    const completeLength = Math.round(width * ratio);
-    const complete = this.chars[0].repeat(completeLength);
-    const incomplete = this.chars[1].repeat(width - completeLength);
-    bar = `[${complete}${incomplete}]${bar}`;
-
-    (0, (_util || _load_util()).toStartOfLine)(this.stdout);
-    this.stdout.write(bar);
-  }
-}
-exports.default = ProgressBar;
-ProgressBar.bars = [['#', '-']];
-
-/***/ }),
-/* 564 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(212);
-}
-
-class Spinner {
-  constructor(stdout = process.stderr, lineNumber = 0) {
-    this.current = 0;
-    this.prefix = '';
-    this.lineNumber = lineNumber;
-    this.stdout = stdout;
-    this.delay = 60;
-    this.chars = Spinner.spinners[28].split('');
-    this.text = '';
-    this.id = null;
-  }
-
-  setPrefix(prefix) {
-    this.prefix = prefix;
-  }
-  setText(text) {
-    this.text = text;
-  }
-  start() {
-    this.current = 0;
-    this.render();
-  }
-  render() {
-    if (this.id) {
-      clearTimeout(this.id);
-    }
-    // build line ensuring we don't wrap to the next line
-    let msg = `${this.prefix}${this.chars[this.current]} ${this.text}`;
-    const columns = typeof this.stdout.columns === 'number' ? this.stdout.columns : 100;
-    msg = msg.slice(0, columns);
-    (0, (_util || _load_util()).writeOnNthLine)(this.stdout, this.lineNumber, msg);
-    this.current = ++this.current % this.chars.length;
-    this.id = setTimeout(() => this.render(), this.delay);
-  }
-  stop() {
-    if (this.id) {
-      clearTimeout(this.id);
-      this.id = null;
-    }
-    (0, (_util || _load_util()).clearNthLine)(this.stdout, this.lineNumber);
-  }
-}
-exports.default = Spinner;
-Spinner.spinners = ['|/-\\', '⠂-–—–-', '◐◓◑◒', '◴◷◶◵', '◰◳◲◱', '▖▘▝▗', '■□▪▫', '▌▀▐▄', '▉▊▋▌▍▎▏▎▍▌▋▊▉', '▁▃▄▅▆▇█▇▆▅▄▃', '←↖↑↗→↘↓↙', '┤┘┴└├┌┬┐', '◢◣◤◥', '.oO°Oo.', '.oO@*', '🌍🌎🌏', '◡◡ ⊙⊙ ◠◠', '☱☲☴', '⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏', '⠋⠙⠚⠞⠖⠦⠴⠲⠳⠓', '⠄⠆⠇⠋⠙⠸⠰⠠⠰⠸⠙⠋⠇⠆', '⠋⠙⠚⠒⠂⠂⠒⠲⠴⠦⠖⠒⠐⠐⠒⠓⠋', '⠁⠉⠙⠚⠒⠂⠂⠒⠲⠴⠤⠄⠄⠤⠴⠲⠒⠂⠂⠒⠚⠙⠉⠁', '⠈⠉⠋⠓⠒⠐⠐⠒⠖⠦⠤⠠⠠⠤⠦⠖⠒⠐⠐⠒⠓⠋⠉⠈', '⠁⠁⠉⠙⠚⠒⠂⠂⠒⠲⠴⠤⠄⠄⠤⠠⠠⠤⠦⠖⠒⠐⠐⠒⠓⠋⠉⠈⠈', '⢄⢂⢁⡁⡈⡐⡠', '⢹⢺⢼⣸⣇⡧⡗⡏', '⣾⣽⣻⢿⡿⣟⣯⣷', '⠁⠂⠄⡀⢀⠠⠐⠈'];
-
-/***/ }),
-/* 565 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _jsonReporter;
-
-function _load_jsonReporter() {
-  return _jsonReporter = _interopRequireDefault(__webpack_require__(213));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var _require = __webpack_require__(77);
-
-const EventEmitter = _require.EventEmitter;
-class EventReporter extends (_jsonReporter || _load_jsonReporter()).default {
-
-  constructor(opts) {
-    super(opts);
-
-    // $FlowFixMe: looks like a flow bug
-    EventEmitter.call(this);
-  }
-
-  _dump(type, data) {
-    this.emit(type, data);
-  }
-}
-
-exports.default = EventReporter;
-Object.assign(EventReporter.prototype, EventEmitter.prototype);
-
-/***/ }),
-/* 566 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-function formatFunction(...strs) {
-  return strs.join(' ');
-}
-
-const defaultFormatter = exports.defaultFormatter = {
-  bold: formatFunction,
-  dim: formatFunction,
-  italic: formatFunction,
-  underline: formatFunction,
-  inverse: formatFunction,
-  strikethrough: formatFunction,
-  black: formatFunction,
-  red: formatFunction,
-  green: formatFunction,
-  yellow: formatFunction,
-  blue: formatFunction,
-  magenta: formatFunction,
-  cyan: formatFunction,
-  white: formatFunction,
-  gray: formatFunction,
-  grey: formatFunction,
-  stripColor: formatFunction
-};
-
-/***/ }),
-/* 567 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-/* eslint max-len: 0 */
-
-const messages = {
-  upToDate: 'Already up-to-date.',
-  folderInSync: 'Folder in sync.',
-  nothingToInstall: 'Nothing to install.',
-  resolvingPackages: 'Resolving packages',
-  checkingManifest: 'Validating package.json',
-  fetchingPackages: 'Fetching packages',
-  linkingDependencies: 'Linking dependencies',
-  rebuildingPackages: 'Rebuilding all packages',
-  buildingFreshPackages: 'Building fresh packages',
-  cleaningModules: 'Cleaning modules',
-  bumpingVersion: 'Bumping version',
-  savingHar: 'Saving HAR file: $0',
-  answer: 'Answer?',
-  usage: 'Usage',
-  installCommandRenamed: '`install` has been replaced with `add` to add new dependencies. Run $0 instead.',
-  globalFlagRemoved: '`--global` has been deprecated. Please run $0 instead.',
-  waitingInstance: 'Waiting for the other yarn instance to finish (pid $0, inside $1)',
-  waitingNamedInstance: 'Waiting for the other yarn instance to finish ($0)',
-  offlineRetrying: 'There appears to be trouble with your network connection. Retrying...',
-  internalServerErrorRetrying: 'There appears to be trouble with the npm registry (returned $1). Retrying...',
-  clearedCache: 'Cleared cache.',
-  couldntClearPackageFromCache: "Couldn't clear package $0 from cache",
-  clearedPackageFromCache: 'Cleared package $0 from cache',
-  packWroteTarball: 'Wrote tarball to $0.',
-  invalidBinField: 'Invalid bin field for $0.',
-  invalidBinEntry: 'Invalid bin entry for $1 (in $0).',
-  helpExamples: '  Examples:\n$0\n',
-  helpCommands: '  Commands:\n$0\n',
-  helpCommandsMore: '  Run `$0` for more information on specific commands.',
-  helpLearnMore: '  Visit $0 to learn more about Yarn.\n',
-
-  manifestPotentialTypo: 'Potential typo $0, did you mean $1?',
-  manifestBuiltinModule: '$0 is also the name of a node core module',
-  manifestNameDot: "Name can't start with a dot",
-  manifestNameIllegalChars: 'Name contains illegal characters',
-  manifestNameBlacklisted: 'Name is blacklisted',
-  manifestLicenseInvalid: 'License should be a valid SPDX license expression',
-  manifestLicenseNone: 'No license field',
-  manifestStringExpected: '$0 is not a string',
-  manifestDependencyCollision: '$0 has dependency $1 with range $2 that collides with a dependency in $3 of the same name with version $4',
-  manifestDirectoryNotFound: 'Unable to read $0 directory of module $1',
-
-  verboseFileCopy: 'Copying $0 to $1.',
-  verboseFileLink: 'Creating hardlink at $0 to $1.',
-  verboseFileSymlink: 'Creating symlink at $0 to $1.',
-  verboseFileSkip: 'Skipping copying of file $0 as the file at $1 is the same size ($2) and mtime ($3).',
-  verboseFileSkipSymlink: 'Skipping copying of $0 as the file at $1 is the same symlink ($2).',
-  verboseFileSkipHardlink: 'Skipping copying of $0 as the file at $1 is the same hardlink ($2).',
-  verboseFileRemoveExtraneous: 'Removing extraneous file $0.',
-  verboseFilePhantomExtraneous: "File $0 would be marked as extraneous but has been removed as it's listed as a phantom file.",
-  verboseFileSkipArtifact: 'Skipping copying of $0 as the file is marked as a built artifact and subject to change.',
-  verboseFileFolder: 'Creating directory $0.',
-
-  verboseRequestStart: 'Performing $0 request to $1.',
-  verboseRequestFinish: 'Request $0 finished with status code $1.',
-
-  configSet: 'Set $0 to $1.',
-  configDelete: 'Deleted $0.',
-  configNpm: 'npm config',
-  configYarn: 'yarn config',
-
-  couldntFindPackagejson: "Couldn't find a package.json file in $0",
-  couldntFindMatch: "Couldn't find match for $0 in $1 for $2.",
-  couldntFindPackageInCache: "Couldn't find any versions for $0 that matches $1 in our cache (possible versions are $2). This is usually caused by a missing entry in the lockfile, running Yarn without the --offline flag may help fix this issue.",
-  couldntFindVersionThatMatchesRange: "Couldn't find any versions for $0 that matches $1",
-  chooseVersionFromList: 'Please choose a version of $0 from this list:',
-  moduleNotInManifest: "This module isn't specified in a package.json file.",
-  moduleAlreadyInManifest: '$0 is already in $1. Please remove existing entry first before adding it to $2.',
-  unknownFolderOrTarball: "Passed folder/tarball doesn't exist,",
-  unknownPackage: "Couldn't find package $0.",
-  unknownPackageName: "Couldn't find package name.",
-  unknownUser: "Couldn't find user $0.",
-  unknownRegistryResolver: 'Unknown registry resolver $0',
-  userNotAnOwner: "User $0 isn't an owner of this package.",
-  invalidVersionArgument: 'Use the $0 flag to create a new version.',
-  invalidVersion: 'Invalid version supplied.',
-  requiredVersionInRange: 'Required version in range.',
-  packageNotFoundRegistry: "Couldn't find package $0 on the $1 registry.",
-  requiredPackageNotFoundRegistry: "Couldn't find package $0 required by $1 on the $2 registry.",
-  doesntExist: "Package $1 refers to a non-existing file '$0'.",
-  missingRequiredPackageKey: `Package $0 doesn't have a $1.`,
-  invalidAccess: 'Invalid argument for access, expected public or restricted.',
-  invalidCommand: 'Invalid subcommand. Try $0',
-  invalidGistFragment: 'Invalid gist fragment $0.',
-  invalidHostedGitFragment: 'Invalid hosted git fragment $0.',
-  invalidFragment: 'Invalid fragment $0.',
-  invalidPackageName: 'Invalid package name.',
-  invalidPackageVersion: "Can't add $0: invalid package version $1.",
-  couldntFindManifestIn: "Couldn't find manifest in $0.",
-  shrinkwrapWarning: 'npm-shrinkwrap.json found. This will not be updated or respected. See https://yarnpkg.com/en/docs/migrating-from-npm for more information.',
-  npmLockfileWarning: 'package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json.',
-  lockfileOutdated: 'Outdated lockfile. Please run `yarn install` and try again.',
-  lockfileMerged: 'Merge conflict detected in yarn.lock and successfully merged.',
-  lockfileConflict: 'A merge conflict was found in yarn.lock but it could not be successfully merged, regenerating yarn.lock from scratch.',
-  ignoredScripts: 'Ignored scripts due to flag.',
-  missingAddDependencies: 'Missing list of packages to add to your project.',
-  yesWarning: 'The yes flag has been set. This will automatically answer yes to all questions, which may have security implications.',
-  networkWarning: "You don't appear to have an internet connection. Try the --offline flag to use the cache for registry queries.",
-  flatGlobalError: 'The package $0 requires a flat dependency graph. Add `"flat": true` to your package.json and try again.',
-  noName: `Package doesn't have a name.`,
-  noVersion: `Package doesn't have a version.`,
-  answerRequired: 'An answer is required.',
-  missingWhyDependency: 'Missing package name, folder or path to file to identify why a package has been installed',
-  bugReport: 'If you think this is a bug, please open a bug report with the information provided in $0.',
-  unexpectedError: 'An unexpected error occurred: $0.',
-  jsonError: 'Error parsing JSON at $0, $1.',
-  noPermission: 'Cannot create $0 due to insufficient permissions.',
-  noGlobalFolder: 'Cannot find a suitable global folder. Tried these: $0',
-  allDependenciesUpToDate: 'All of your dependencies are up to date.',
-  legendColorsForVersionUpdates: 'Color legend : \n $0    : Major Update backward-incompatible updates \n $1 : Minor Update backward-compatible features \n $2  : Patch Update backward-compatible bug fixes',
-  frozenLockfileError: 'Your lockfile needs to be updated, but yarn was run with `--frozen-lockfile`.',
-  fileWriteError: 'Could not write file $0: $1',
-  multiplePackagesCantUnpackInSameDestination: 'Pattern $0 is trying to unpack in the same destination $1 as pattern $2. This could result in non-deterministic behavior, skipping.',
-  incorrectLockfileEntry: 'Lockfile has incorrect entry for $0. Ignoring it.',
-
-  invalidResolutionName: 'Resolution field $0 does not end with a valid package name and will be ignored',
-  invalidResolutionVersion: 'Resolution field $0 has an invalid version entry and may be ignored',
-  incompatibleResolutionVersion: 'Resolution field $0 is incompatible with requested version $1',
-
-  yarnOutdated: "Your current version of Yarn is out of date. The latest version is $0, while you're on $1.",
-  yarnOutdatedInstaller: 'To upgrade, download the latest installer at $0.',
-  yarnOutdatedCommand: 'To upgrade, run the following command:',
-
-  tooManyArguments: 'Too many arguments, maximum of $0.',
-  tooFewArguments: 'Not enough arguments, expected at least $0.',
-  noArguments: "This command doesn't require any arguments.",
-
-  ownerRemoving: 'Removing owner $0 from package $1.',
-  ownerRemoved: 'Owner removed.',
-  ownerRemoveError: "Couldn't remove owner.",
-  ownerGetting: 'Getting owners for package $0',
-  ownerGettingFailed: "Couldn't get list of owners.",
-  ownerAlready: 'This user is already an owner of this package.',
-  ownerAdded: 'Added owner.',
-  ownerAdding: 'Adding owner $0 to package $1',
-  ownerAddingFailed: "Couldn't add owner.",
-  ownerNone: 'No owners.',
-
-  teamCreating: 'Creating team',
-  teamRemoving: 'Removing team',
-  teamAddingUser: 'Adding user to team',
-  teamRemovingUser: 'Removing user from team',
-  teamListing: 'Listing teams',
-
-  cleaning: 'Cleaning modules',
-  cleanCreatingFile: 'Creating $0',
-  cleanCreatedFile: 'Created $0. Please review the contents of this file then run "yarn autoclean --force" to perform a clean.',
-  cleanAlreadyExists: '$0 already exists. To revert to the default file, delete $0 then rerun this command.',
-  cleanRequiresForce: 'This command required the "--force" flag to perform the clean. This is a destructive operation. Files specified in $0 will be deleted.',
-  cleanDoesNotExist: '$0 does not exist. Autoclean will delete files specified by $0. Run "autoclean --init" to create $0 with the default entries.',
-
-  binLinkCollision: "There's already a linked binary called $0 in your global Yarn bin. Could not link this package's $0 bin entry.",
-  linkCollision: "There's already a package called $0 registered. This command has had no effect. If this command was run in another folder with the same name, the other folder is still linked. Please run yarn unlink in the other folder if you want to register this folder.",
-  linkMissing: 'No registered package found called $0.',
-  linkRegistered: 'Registered $0.',
-  linkRegisteredMessage: 'You can now run `yarn link $0` in the projects where you want to use this package and it will be used instead.',
-  linkUnregistered: 'Unregistered $0.',
-  linkUnregisteredMessage: 'You can now run `yarn unlink $0` in the projects where you no longer want to use this package.',
-  linkUsing: 'Using linked package for $0.',
-  linkDisusing: 'Removed linked package $0.',
-  linkDisusingMessage: 'You will need to run `yarn install --force` to re-install the package that was linked.',
-  linkTargetMissing: 'The target of linked package $0 is missing. Removing link.',
-
-  createInvalidBin: 'Invalid bin entry found in package $0.',
-  createMissingPackage: 'Package not found - this is probably an internal error, and should be reported at https://github.com/yarnpkg/yarn/issues.',
-
-  workspacesAddRootCheck: 'Running this command will add the dependency to the workspace root rather than the workspace itself, which might not be what you want - if you really meant it, make it explicit by running this command again with the -W flag (or --ignore-workspace-root-check).',
-  workspacesRemoveRootCheck: 'Running this command will remove the dependency from the workspace root rather than the workspace itself, which might not be what you want - if you really meant it, make it explicit by running this command again with the -W flag (or --ignore-workspace-root-check).',
-  workspacesFocusRootCheck: 'This command can only be run inside an individual workspace.',
-  workspacesRequirePrivateProjects: 'Workspaces can only be enabled in private projects.',
-  workspacesSettingMustBeArray: 'The workspaces field in package.json must be an array.',
-  workspacesDisabled: 'Your project root defines workspaces but the feature is disabled in your Yarn config. Please check "workspaces-experimental" in your .yarnrc file.',
-
-  workspacesNohoistRequirePrivatePackages: 'nohoist config is ignored in $0 because it is not a private package. If you think nohoist should be allowed in public packages, please submit an issue for your use case.',
-  workspacesNohoistDisabled: `$0 defines nohoist but the feature is disabled in your Yarn config ("workspaces-nohoist-experimental" in .yarnrc file)`,
-
-  workspaceRootNotFound: "Cannot find the root of your workspace - are you sure you're currently in a workspace?",
-  workspaceMissingWorkspace: 'Missing workspace name.',
-  workspaceMissingCommand: 'Missing command name.',
-  workspaceUnknownWorkspace: 'Unknown workspace $0.',
-  workspaceVersionMandatory: 'Missing version in workspace at $0, ignoring.',
-  workspaceNameMandatory: 'Missing name in workspace at $0, ignoring.',
-  workspaceNameDuplicate: 'There are more than one workspace with name $0',
-
-  cacheFolderSkipped: 'Skipping preferred cache folder $0 because it is not writable.',
-  cacheFolderMissing: "Yarn hasn't been able to find a cache folder it can use. Please use the explicit --cache-folder option to tell it what location to use, or make one of the preferred locations writable.",
-  cacheFolderSelected: 'Selected the next writable cache folder in the list, will be $0.',
-
-  execMissingCommand: 'Missing command name.',
-
-  noScriptsAvailable: 'There are no scripts specified inside package.json.',
-  noBinAvailable: 'There are no binary scripts available.',
-  dashDashDeprecation: `From Yarn 1.0 onwards, scripts don't require "--" for options to be forwarded. In a future version, any explicit "--" will be forwarded as-is to the scripts.`,
-  commandNotSpecified: 'No command specified.',
-  binCommands: 'Commands available from binary scripts: ',
-  possibleCommands: 'Project commands',
-  commandQuestion: 'Which command would you like to run?',
-  commandFailedWithCode: 'Command failed with exit code $0.',
-  commandFailedWithSignal: 'Command failed with signal $0.',
-  packageRequiresNodeGyp: 'This package requires node-gyp, which is not currently installed. Yarn will attempt to automatically install it. If this fails, you can run "yarn global add node-gyp" to manually install it.',
-  nodeGypAutoInstallFailed: 'Failed to auto-install node-gyp. Please run "yarn global add node-gyp" manually. Error: $0',
-
-  foundIncompatible: 'Found incompatible module.',
-  incompatibleEngine: 'The engine $0 is incompatible with this module. Expected version $1. Got $2',
-  incompatibleCPU: 'The CPU architecture $0 is incompatible with this module.',
-  incompatibleOS: 'The platform $0 is incompatible with this module.',
-  invalidEngine: 'The engine $0 appears to be invalid.',
-  cannotRunWithIncompatibleEnv: 'Commands cannot run with an incompatible environment.',
-
-  optionalCompatibilityExcluded: '$0 is an optional dependency and failed compatibility check. Excluding it from installation.',
-  optionalModuleFail: 'This module is OPTIONAL, you can safely ignore this error',
-  optionalModuleScriptFail: 'Error running install script for optional dependency: $0',
-  optionalModuleCleanupFail: 'Could not cleanup build artifacts from failed install: $0',
-
-  unmetPeer: '$0 has unmet peer dependency $1.',
-  incorrectPeer: '$0 has incorrect peer dependency $1.',
-  selectedPeer: 'Selecting $1 at level $2 as the peer dependency of $0.',
-  missingBundledDependency: '$0 is missing a bundled dependency $1. This should be reported to the package maintainer.',
-
-  savedNewDependency: 'Saved 1 new dependency.',
-  savedNewDependencies: 'Saved $0 new dependencies.',
-  directDependencies: 'Direct dependencies',
-  allDependencies: 'All dependencies',
-
-  foundWarnings: 'Found $0 warnings.',
-  foundErrors: 'Found $0 errors.',
-
-  savedLockfile: 'Saved lockfile.',
-  noRequiredLockfile: 'No lockfile in this directory. Run `yarn install` to generate one.',
-  noLockfileFound: 'No lockfile found.',
-
-  invalidSemver: 'Invalid semver version',
-  newVersion: 'New version',
-  currentVersion: 'Current version',
-  noVersionOnPublish: 'Proceeding with current version',
-
-  manualVersionResolution: 'Unable to find a suitable version for $0, please choose one by typing one of the numbers below:',
-  manualVersionResolutionOption: '$0 which resolved to $1',
-
-  createdTag: 'Created tag.',
-  createdTagFail: "Couldn't add tag.",
-  deletedTag: 'Deleted tag.',
-  deletedTagFail: "Couldn't delete tag.",
-  gettingTags: 'Getting tags',
-  deletingTags: 'Deleting tag',
-  creatingTag: 'Creating tag $0 = $1',
-
-  whyStart: 'Why do we have the module $0?',
-  whyFinding: 'Finding dependency',
-  whyCalculating: 'Calculating file sizes',
-  whyUnknownMatch: "We couldn't find a match!",
-  whyInitGraph: 'Initialising dependency graph',
-  whyWhoKnows: "We don't know why this module exists",
-  whyDiskSizeWithout: 'Disk size without dependencies: $0',
-  whyDiskSizeUnique: 'Disk size with unique dependencies: $0',
-  whyDiskSizeTransitive: 'Disk size with transitive dependencies: $0',
-  whySharedDependencies: 'Number of shared dependencies: $0',
-  whyHoistedTo: `Has been hoisted to $0`,
-
-  whyHoistedFromSimple: `This module exists because it's hoisted from $0.`,
-  whyNotHoistedSimple: `This module exists here because it's in the nohoist list $0.`,
-  whyDependedOnSimple: `This module exists because $0 depends on it.`,
-  whySpecifiedSimple: `This module exists because it's specified in $0.`,
-  whyReasons: 'Reasons this module exists',
-  whyHoistedFrom: 'Hoisted from $0',
-  whyNotHoisted: `in the nohoist list $0`,
-  whyDependedOn: '$0 depends on it',
-  whySpecified: `Specified in $0`,
-
-  whyMatch: `\r=> Found $0`,
-
-  uninstalledPackages: 'Uninstalled packages.',
-  uninstallRegenerate: 'Regenerating lockfile and installing missing dependencies',
-
-  cleanRemovedFiles: 'Removed $0 files',
-  cleanSavedSize: 'Saved $0 MB.',
-
-  configFileFound: 'Found configuration file $0.',
-  configPossibleFile: 'Checking for configuration file $0.',
-
-  npmUsername: 'npm username',
-  npmPassword: 'npm password',
-  npmEmail: 'npm email',
-  npmOneTimePassword: 'npm one-time password',
-
-  loggingIn: 'Logging in',
-  loggedIn: 'Logged in.',
-  notRevokingEnvToken: 'Not revoking login token, specified via environment variable.',
-  notRevokingConfigToken: 'Not revoking login token, specified via config file.',
-  noTokenToRevoke: 'No login token to revoke.',
-  revokingToken: 'Revoking token',
-  revokedToken: 'Revoked login token.',
-
-  loginAsPublic: 'Logging in as public',
-  incorrectCredentials: 'Incorrect username or password.',
-  incorrectOneTimePassword: 'Incorrect one-time password.',
-  twoFactorAuthenticationEnabled: 'Two factor authentication enabled.',
-  clearedCredentials: 'Cleared login credentials.',
-
-  publishFail: "Couldn't publish package: $0",
-  publishPrivate: 'Package marked as private, not publishing.',
-  published: 'Published.',
-  publishing: 'Publishing',
-
-  nonInteractiveNoVersionSpecified: 'You must specify a new version with --new-version when running with --non-interactive.',
-  nonInteractiveNoToken: "No token found and can't prompt for login when running with --non-interactive.",
-
-  infoFail: 'Received invalid response from npm.',
-  malformedRegistryResponse: 'Received malformed response from registry for $0. The registry may be down.',
-  registryNoVersions: 'No valid versions found for $0. The package may be unpublished.',
-
-  cantRequestOffline: "Can't make a request in offline mode ($0)",
-  requestManagerNotSetupHAR: 'RequestManager was not setup to capture HAR files',
-  requestError: 'Request $0 returned a $1',
-  requestFailed: 'Request failed $0',
-  tarballNotInNetworkOrCache: '$0: Tarball is not in network and can not be located in cache ($1)',
-  fetchBadIntegrityCache: 'Incorrect integrity when fetching from the cache for $0. Cache has $1 and remote has $2. Run `yarn cache clean` to fix the problem',
-  fetchBadHashCache: 'Incorrect hash when fetching from the cache for $0. Cache has $1 and remote has $2. Run `yarn cache clean` to fix the problem',
-  fetchBadHashWithPath: "Integrity check failed for $0 (computed integrity doesn't match our records, got $2)",
-  fetchBadIntegrityAlgorithm: 'Integrity checked failed for $0 (none of the specified algorithms are supported)',
-  fetchErrorCorrupt: '$0. Mirror tarball appears to be corrupt. You can resolve this by running:\n\n  rm -rf $1\n  yarn install',
-  errorExtractingTarball: 'Extracting tar content of $1 failed, the file appears to be corrupt: $0',
-  updateInstalling: 'Installing $0...',
-  hostedGitResolveError: 'Error connecting to repository. Please, check the url.',
-
-  unknownFetcherFor: 'Unknown fetcher for $0',
-
-  downloadGitWithoutCommit: 'Downloading the git repo $0 over plain git without a commit hash',
-  downloadHTTPWithoutCommit: 'Downloading the git repo $0 over HTTP without a commit hash',
-
-  unplugDisabled: "Packages can only be unplugged when Plug'n'Play is enabled.",
-
-  plugnplaySuggestV2L1: "Plug'n'Play support has been greatly improved on the Yarn v2 development branch.",
-  plugnplaySuggestV2L2: 'Please give it a try and tell us what you think! - https://next.yarnpkg.com/getting-started/install',
-  plugnplayWindowsSupport: "Plug'n'Play on Windows doesn't support the cache and project to be kept on separate drives",
-
-  packageInstalledWithBinaries: 'Installed $0 with binaries:',
-  packageHasBinaries: '$0 has binaries:',
-  packageHasNoBinaries: '$0 has no binaries',
-  packageBinaryNotFound: "Couldn't find a binary named $0",
-
-  couldBeDeduped: '$0 could be deduped from $1 to $2',
-  lockfileNotContainPattern: 'Lockfile does not contain pattern: $0',
-  integrityCheckFailed: 'Integrity check failed',
-  noIntegrityFile: "Couldn't find an integrity file",
-  integrityFailedExpectedIsNotAJSON: 'Integrity check: integrity file is not a json',
-  integrityCheckLinkedModulesDontMatch: "Integrity check: Linked modules don't match",
-  integrityFlagsDontMatch: "Integrity check: Flags don't match",
-  integrityLockfilesDontMatch: "Integrity check: Lock files don't match",
-  integrityFailedFilesMissing: 'Integrity check: Files are missing',
-  integrityPatternsDontMatch: "Integrity check: Top level patterns don't match",
-  integrityModulesFoldersMissing: 'Integrity check: Some module folders are missing',
-  integritySystemParamsDontMatch: "Integrity check: System parameters don't match",
-  packageNotInstalled: '$0 not installed',
-  optionalDepNotInstalled: 'Optional dependency $0 not installed',
-  packageWrongVersion: '$0 is wrong version: expected $1, got $2',
-  packageDontSatisfy: "$0 doesn't satisfy found match of $1",
-
-  lockfileExists: 'Lockfile already exists, not importing.',
-  skippingImport: 'Skipping import of $0 for $1',
-  importFailed: 'Import of $0 for $1 failed, resolving normally.',
-  importResolveFailed: 'Import of $0 failed starting in $1',
-  importResolvedRangeMatch: 'Using version $0 of $1 instead of $2 for $3',
-  importSourceFilesCorrupted: 'Failed to import from package-lock.json, source file(s) corrupted',
-  importPackageLock: 'found npm package-lock.json, converting to yarn.lock',
-  importNodeModules: 'creating yarn.lock from local node_modules folder',
-  packageContainsYarnAsGlobal: 'Installing Yarn via Yarn will result in you having two separate versions of Yarn installed at the same time, which is not recommended. To update Yarn please follow https://yarnpkg.com/en/docs/install .',
-
-  scopeNotValid: 'The specified scope is not valid.',
-
-  deprecatedCommand: '$0 is deprecated. Please use $1.',
-  deprecatedListArgs: 'Filtering by arguments is deprecated. Please use the pattern option instead.',
-  implicitFileDeprecated: 'Using the "file:" protocol implicitly is deprecated. Please either prepend the protocol or prepend the path $0 with "./".',
-  unsupportedNodeVersion: 'You are using Node $0 which is not supported and may encounter bugs or unexpected behavior. Yarn supports the following semver range: $1',
-
-  verboseUpgradeBecauseRequested: 'Considering upgrade of $0 to $1 because it was directly requested.',
-  verboseUpgradeBecauseOutdated: 'Considering upgrade of $0 to $1 because a newer version exists in the registry.',
-  verboseUpgradeNotUnlocking: 'Not unlocking $0 in the lockfile because it is a new or direct dependency.',
-  verboseUpgradeUnlocking: 'Unlocking $0 in the lockfile.',
-  folderMissing: "Directory $0 doesn't exist",
-  mutexPortBusy: 'Cannot use the network mutex on port $0. It is probably used by another app.',
-
-  auditRunning: 'Auditing packages',
-  auditSummary: '$0 vulnerabilities found - Packages audited: $1',
-  auditSummarySeverity: 'Severity:',
-  auditCritical: '$0 Critical',
-  auditHigh: '$0 High',
-  auditModerate: '$0 Moderate',
-  auditLow: '$0 Low',
-  auditInfo: '$0 Info',
-  auditResolveCommand: '# Run $0 to resolve $1 $2',
-  auditSemverMajorChange: 'SEMVER WARNING: Recommended action is a potentially breaking change',
-  auditManualReview: 'Manual Review\nSome vulnerabilities require your attention to resolve\n\nVisit https://go.npm.me/audit-guide for additional guidance',
-  auditRunAuditForDetails: 'Security audit found potential problems. Run "yarn audit" for additional details.',
-  auditOffline: 'Skipping audit. Security audit cannot be performed in offline mode.'
-};
-
-exports.default = messages;
-
-/***/ }),
-/* 568 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.en = undefined;
-
-var _en;
-
-function _load_en() {
-  return _en = _interopRequireDefault(__webpack_require__(567));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-exports.en = (_en || _load_en()).default;
-
-/***/ }),
-/* 569 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _baseReporter;
-
-function _load_baseReporter() {
-  return _baseReporter = _interopRequireDefault(__webpack_require__(108));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* eslint no-unused-vars: 0 */
-
-class NoopReporter extends (_baseReporter || _load_baseReporter()).default {
-  lang(key, ...args) {
-    return 'do nothing';
-  }
-  verbose(msg) {}
-  verboseInspect(val) {}
-  initPeakMemoryCounter() {}
-  checkPeakMemory() {}
-  close() {}
-  getTotalTime() {
-    return 0;
-  }
-  list(key, items, hints) {}
-  tree(key, obj) {}
-  step(current, total, message, emoji) {}
-  error(message) {}
-  info(message) {}
-  warn(message) {}
-  success(message) {}
-  log(message) {}
-  command(command) {}
-  inspect(value) {}
-  header(command, pkg) {}
-  footer(showPeakMemory) {}
-  table(head, body) {}
-
-  activity() {
-    return {
-      tick(name) {},
-      end() {}
-    };
-  }
-
-  activitySet(total, workers) {
-    return {
-      spinners: Array(workers).fill({
-        clear() {},
-        setPrefix() {},
-        tick() {},
-        end() {}
-      }),
-      end() {}
-    };
-  }
-
-  question(question, options = {}) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-
-  questionAffirm(question) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      yield _this.question(question);
-      return false;
-    })();
-  }
-
-  select(header, question, options) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-
-  progress(total) {
-    return function () {};
-  }
-
-  disableProgress() {
-    this.noProgress = true;
-  }
-
-  prompt(message, choices, options = {}) {
-    return Promise.reject(new Error('Not implemented'));
-  }
-}
-exports.default = NoopReporter;
-
-/***/ }),
-/* 570 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _extends2;
-
-function _load_extends() {
-  return _extends2 = _interopRequireDefault(__webpack_require__(21));
-}
-
-var _packageRequest;
-
-function _load_packageRequest() {
-  return _packageRequest = _interopRequireDefault(__webpack_require__(122));
-}
-
-var _baseResolver;
-
-function _load_baseResolver() {
-  return _baseResolver = _interopRequireDefault(__webpack_require__(123));
-}
-
-var _workspaceLayout;
-
-function _load_workspaceLayout() {
-  return _workspaceLayout = _interopRequireDefault(__webpack_require__(90));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-class WorkspaceResolver extends (_baseResolver || _load_baseResolver()).default {
-  static isWorkspace(pattern, workspaceLayout) {
-    return !!workspaceLayout && !!workspaceLayout.getManifestByPattern(pattern);
-  }
-
-  constructor(request, fragment, workspaceLayout) {
-    super(request, fragment);
-    this.workspaceLayout = workspaceLayout;
-  }
-
-  resolve(downloadedManifest) {
-    const workspace = this.workspaceLayout.getManifestByPattern(this.request.pattern);
-    invariant(workspace, 'expected workspace');
-    const manifest = workspace.manifest,
-          loc = workspace.loc;
-
-    if (manifest._remote && manifest._remote.registryRemote) {
-      return Promise.resolve(manifest); //already downloaded
-    }
-    const registry = manifest._registry;
-    invariant(registry, 'expected reference');
-    let hash = '';
-    let registryRemote;
-    if (downloadedManifest && manifest.version === downloadedManifest.version) {
-      registryRemote = downloadedManifest._remote;
-      invariant(registryRemote, 'missing remote info');
-      hash = registryRemote.hash;
-      //override any local changes to manifest
-      Object.keys(manifest).forEach(k => k.startsWith('_') || delete manifest[k]);
-      Object.assign(manifest, downloadedManifest);
-    } else if (manifest._remote && manifest._remote.hash) {
-      invariant(workspace.manifest._remote, 'missing remote info');
-      registryRemote = workspace.manifest._remote.registryRemote;
-      hash = manifest._remote.hash;
-    }
-    if (registryRemote) {
-      registryRemote = (0, (_extends2 || _load_extends()).default)({}, registryRemote);
-    }
-
-    manifest._remote = Object.assign(manifest._remote || {}, {
-      type: 'workspace',
-      registryRemote,
-      registry,
-      hash,
-      reference: loc
-    });
-
-    manifest._uid = manifest.version;
-
-    return Promise.resolve(manifest);
-  }
-}
-exports.default = WorkspaceResolver;
-
-/***/ }),
-/* 571 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _hostedGitResolver;
-
-function _load_hostedGitResolver() {
-  return _hostedGitResolver = _interopRequireDefault(__webpack_require__(109));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class BitbucketResolver extends (_hostedGitResolver || _load_hostedGitResolver()).default {
-
-  static getTarballUrl(parts, hash) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}/get/${hash}.tar.gz`;
-  }
-
-  static getGitHTTPBaseUrl(parts) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}`;
-  }
-
-  static getGitHTTPUrl(parts) {
-    return `${BitbucketResolver.getGitHTTPBaseUrl(parts)}.git`;
-  }
-
-  static getGitSSHUrl(parts) {
-    return `git+ssh://git@${this.hostname}/${parts.user}/${parts.repo}.git` + `${parts.hash ? '#' + decodeURIComponent(parts.hash) : ''}`;
-  }
-
-  static getHTTPFileUrl(parts, filename, commit) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}/raw/${commit}/${filename}`;
-  }
-
-  hasHTTPCapability(url) {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      // We don't follow redirects and reject a 302 since this means BitBucket
-      // won't allow us to use the HTTP protocol for `git` access.
-      // Most probably a private repo and this 302 is to a login page.
-      const bitbucketHTTPSupport = yield _this.config.requestManager.request({
-        url,
-        method: 'HEAD',
-        queue: _this.resolver.fetchingQueue,
-        followRedirect: false,
-        rejectStatusCode: 302
-      });
-      return bitbucketHTTPSupport !== false;
-    })();
-  }
-}
-exports.default = BitbucketResolver;
-BitbucketResolver.hostname = 'bitbucket.org';
-BitbucketResolver.protocol = 'bitbucket';
-
-/***/ }),
-/* 572 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _hostedGitResolver;
-
-function _load_hostedGitResolver() {
-  return _hostedGitResolver = _interopRequireDefault(__webpack_require__(109));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class GitLabResolver extends (_hostedGitResolver || _load_hostedGitResolver()).default {
-
-  static getTarballUrl(parts, hash) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}/repository/archive.tar.gz?ref=${hash}`;
-  }
-
-  static getGitHTTPBaseUrl(parts) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}`;
-  }
-
-  static getGitHTTPUrl(parts) {
-    return `${GitLabResolver.getGitHTTPBaseUrl(parts)}.git`;
-  }
-
-  static getGitSSHUrl(parts) {
-    return `git+ssh://git@${this.hostname}/${parts.user}/${parts.repo}.git` + `${parts.hash ? '#' + decodeURIComponent(parts.hash) : ''}`;
-  }
-
-  static getHTTPFileUrl(parts, filename, commit) {
-    return `https://${this.hostname}/${parts.user}/${parts.repo}/raw/${commit}/${filename}`;
-  }
-}
-exports.default = GitLabResolver;
-GitLabResolver.hostname = 'gitlab.com';
-GitLabResolver.protocol = 'gitlab';
-
-/***/ }),
-/* 573 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _errors;
-
-function _load_errors() {
-  return _errors = __webpack_require__(6);
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class RegistryResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-
-    const match = fragment.match(/^(\S+):(@?.*?)(@(.*?)|)$/);
-    if (match) {
-      this.range = match[4] || 'latest';
-      this.name = match[2];
-    } else {
-      throw new (_errors || _load_errors()).MessageError(this.reporter.lang('invalidFragment', fragment));
-    }
-
-    // $FlowFixMe
-    this.registry = this.constructor.protocol;
-  }
-
-  resolve() {
-    return this.fork(this.constructor.factory, false, this.name, this.range);
-  }
-}
-exports.default = RegistryResolver;
-
-/***/ }),
-/* 574 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _tarballFetcher;
-
-function _load_tarballFetcher() {
-  return _tarballFetcher = _interopRequireDefault(__webpack_require__(364));
-}
-
-var _exoticResolver;
-
-function _load_exoticResolver() {
-  return _exoticResolver = _interopRequireDefault(__webpack_require__(89));
-}
-
-var _gitResolver;
-
-function _load_gitResolver() {
-  return _gitResolver = _interopRequireDefault(__webpack_require__(124));
-}
-
-var _guessName;
-
-function _load_guessName() {
-  return _guessName = _interopRequireDefault(__webpack_require__(169));
-}
-
-var _version;
-
-function _load_version() {
-  return _version = _interopRequireWildcard(__webpack_require__(226));
-}
-
-var _crypto;
-
-function _load_crypto() {
-  return _crypto = _interopRequireWildcard(__webpack_require__(168));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const invariant = __webpack_require__(9);
-
-class TarballResolver extends (_exoticResolver || _load_exoticResolver()).default {
-  constructor(request, fragment) {
-    super(request, fragment);
-
-    var _versionUtil$explodeH = (_version || _load_version()).explodeHashedUrl(fragment);
-
-    const hash = _versionUtil$explodeH.hash,
-          url = _versionUtil$explodeH.url;
-
-    this.hash = hash;
-    this.url = url;
-  }
-
-  static isVersion(pattern) {
-    // we can sometimes match git urls which we don't want
-    if ((_gitResolver || _load_gitResolver()).default.isVersion(pattern)) {
-      return false;
-    }
-
-    // full http url
-    if (pattern.startsWith('http://') || pattern.startsWith('https://')) {
-      return true;
-    }
-
-    // local file reference - ignore patterns with names
-    if (pattern.indexOf('@') < 0) {
-      if (pattern.endsWith('.tgz') || pattern.endsWith('.tar.gz')) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
-  resolve() {
-    var _this = this;
-
-    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
-      const shrunk = _this.request.getLocked('tarball');
-      if (shrunk) {
-        return shrunk;
-      }
-
-      const url = _this.url;
-      let hash = _this.hash,
-          registry = _this.registry;
-
-      let pkgJson;
-
-      // generate temp directory
-      const dest = _this.config.getTemp((_crypto || _load_crypto()).hash(url));
-
-      if (yield _this.config.isValidModuleDest(dest)) {
-        var _ref = yield _this.config.readPackageMetadata(dest);
-        // load from local cache
-
-
-        pkgJson = _ref.package;
-        hash = _ref.hash;
-        registry = _ref.registry;
-      } else {
-        // delete if invalid
-        yield (_fs || _load_fs()).unlink(dest);
-
-        const fetcher = new (_tarballFetcher || _load_tarballFetcher()).default(dest, {
-          type: 'tarball',
-          reference: url,
-          registry,
-          hash
-        }, _this.config);
-
-        // fetch file and get it's hash
-        const fetched = yield fetcher.fetch({
-          name: (0, (_guessName || _load_guessName()).default)(url),
-          version: '0.0.0',
-          _registry: 'npm'
-        });
-        pkgJson = fetched.package;
-        hash = fetched.hash;
-
-        registry = pkgJson._registry;
-        invariant(registry, 'expected registry');
-      }
-
-      // use the commit/tarball hash as the uid as we can't rely on the version as it's not
-      // in the registry
-      pkgJson._uid = hash;
-
-      // set remote so it can be "fetched"
-      pkgJson._remote = {
-        type: 'copy',
-        resolved: `${url}#${hash}`,
-        hash,
-        registry,
-        reference: dest
-      };
-
-      return pkgJson;
-    })();
-  }
-}
-exports.default = TarballResolver;
-
-/***/ }),
-/* 575 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _baseResolver;
-
-function _load_baseResolver() {
-  return _baseResolver = _interopRequireDefault(__webpack_require__(123));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class RegistryResolver extends (_baseResolver || _load_baseResolver()).default {
-  constructor(request, name, range) {
-    super(request, `${name}@${range}`);
-    this.name = name;
-    this.range = range;
-
-    this.registryConfig = request.config.registries[this.constructor.registry].config;
-  }
-
-}
-exports.default = RegistryResolver;
-
-/***/ }),
-/* 576 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _npmResolver;
-
-function _load_npmResolver() {
-  return _npmResolver = _interopRequireDefault(__webpack_require__(217));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class YarnResolver extends (_npmResolver || _load_npmResolver()).default {}
-exports.default = YarnResolver;
-
-/***/ }),
-/* 577 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = envReplace;
-const ENV_EXPR = /(\\*)\$\{([^}]+)\}/g;
-
-function envReplace(value, env = process.env) {
-  if (typeof value !== 'string' || !value) {
-    return value;
-  }
-
-  return value.replace(ENV_EXPR, (match, esc, envVarName) => {
-    if (esc.length && esc.length % 2) {
-      return match;
-    }
-    if (undefined === env[envVarName]) {
-      throw new Error('Failed to replace env in config: ' + match);
-    }
-    return env[envVarName] || '';
-  });
-}
-
-/***/ }),
-/* 578 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.fixCmdWinSlashes = fixCmdWinSlashes;
-function fixCmdWinSlashes(cmd) {
-  function findQuotes(quoteSymbol) {
-    const quotes = [];
-    const addQuote = (_, index) => {
-      quotes.push({ from: index, to: index + _.length });
-      return _;
-    };
-    const regEx = new RegExp(quoteSymbol + '.*' + quoteSymbol);
-    cmd.replace(regEx, addQuote);
-    return quotes;
-  }
-  const quotes = findQuotes('"').concat(findQuotes("'"));
-
-  function isInsideQuotes(index) {
-    return quotes.reduce((result, quote) => {
-      return result || quote.from <= index && index <= quote.to;
-    }, false);
-  }
-
-  const cmdPrePattern = '((?:^|&&|&|\\|\\||\\|)\\s*)';
-  const cmdPattern = '(".*?"|\'.*?\'|\\S*)';
-  const regExp = new RegExp(`${cmdPrePattern}${cmdPattern}`, 'g');
-  return cmd.replace(regExp, (whole, pre, cmd, index) => {
-    if ((pre[0] === '&' || pre[0] === '|') && isInsideQuotes(index)) {
-      return whole;
-    }
-    return pre + cmd.replace(/\//g, '\\');
-  });
-}
-
-/***/ }),
-/* 579 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.generatePnpMap = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let getPackageInformationStores = (() => {
-  var _ref17 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, seedPatterns, { resolver, reporter, targetPath, workspaceLayout }) {
-    const targetDirectory = path.dirname(targetPath);
-    const offlineCacheFolder = config.offlineCacheFolder;
-
-    const packageInformationStores = new Map();
-    const blacklistedLocations = new Set();
-
-    const getCachePath = function getCachePath(fsPath) {
-      const cacheRelativePath = normalizePath(path.relative(config.cacheFolder, fsPath));
-
-      // if fsPath is not inside cacheRelativePath, we just skip it
-      if (cacheRelativePath.match(/^\.\.\//)) {
-        return null;
-      }
-
-      return cacheRelativePath;
-    };
-
-    const resolveOfflineCacheFolder = function resolveOfflineCacheFolder(fsPath) {
-      if (!offlineCacheFolder) {
-        return fsPath;
-      }
-
-      const cacheRelativePath = getCachePath(fsPath);
-
-      // if fsPath is not inside the cache, we shouldn't replace it (workspace)
-      if (!cacheRelativePath) {
-        return fsPath;
-      }
-
-      const components = cacheRelativePath.split(/\//g);
-      const cacheEntry = components[0],
-            internalPath = components.slice(1);
-
-
-      return path.resolve(offlineCacheFolder, `${cacheEntry}${OFFLINE_CACHE_EXTENSION}`, internalPath.join('/'));
-    };
-
-    const normalizePath = function normalizePath(fsPath) {
-      return process.platform === 'win32' ? fsPath.replace(backwardSlashRegExp, '/') : fsPath;
-    };
-
-    const normalizeDirectoryPath = function normalizeDirectoryPath(fsPath) {
-      let relativePath = normalizePath(path.relative(targetDirectory, resolveOfflineCacheFolder(fsPath)));
-
-      if (!relativePath.match(/^\.{0,2}\//) && !path.isAbsolute(relativePath)) {
-        relativePath = `./${relativePath}`;
-      }
-
-      return relativePath.replace(/\/?$/, '/');
-    };
-
-    const getHashFrom = function getHashFrom(data) {
-      const hashGenerator = crypto.createHash('sha1');
-
-      for (var _iterator10 = data, _isArray10 = Array.isArray(_iterator10), _i10 = 0, _iterator10 = _isArray10 ? _iterator10 : _iterator10[Symbol.iterator]();;) {
-        var _ref18;
-
-        if (_isArray10) {
-          if (_i10 >= _iterator10.length) break;
-          _ref18 = _iterator10[_i10++];
-        } else {
-          _i10 = _iterator10.next();
-          if (_i10.done) break;
-          _ref18 = _i10.value;
-        }
-
-        const datum = _ref18;
-
-        hashGenerator.update(datum);
-      }
-
-      return hashGenerator.digest('hex');
-    };
-
-    const getResolverEntry = function getResolverEntry(pattern) {
-      const pkg = resolver.getStrictResolvedPattern(pattern);
-      const ref = pkg._reference;
-
-      if (!ref) {
-        return null;
-      }
-
-      invariant(ref.locations.length <= 1, 'Must have at most one location (usually in the cache)');
-      const loc = ref.locations[0];
-
-      if (!loc) {
-        return null;
-      }
-
-      return { pkg, ref, loc };
-    };
-
-    const visit = (() => {
-      var _ref19 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (precomputedResolutions, seedPatterns, parentData = []) {
-        const resolutions = new Map(precomputedResolutions);
-        const locations = new Map();
-
-        // This first pass will compute the package reference of each of the given patterns
-        // They will usually be the package version, but not always. We need to do this in a pre-process pass, because the
-        // dependencies might depend on one another, so if we need to replace one of them, we need to compute it first
-        for (var _iterator11 = seedPatterns, _isArray11 = Array.isArray(_iterator11), _i11 = 0, _iterator11 = _isArray11 ? _iterator11 : _iterator11[Symbol.iterator]();;) {
-          var _ref20;
-
-          if (_isArray11) {
-            if (_i11 >= _iterator11.length) break;
-            _ref20 = _iterator11[_i11++];
-          } else {
-            _i11 = _iterator11.next();
-            if (_i11.done) break;
-            _ref20 = _i11.value;
-          }
-
-          const pattern = _ref20;
-
-          const entry = getResolverEntry(pattern);
-
-          if (!entry) {
-            continue;
-          }
-
-          const pkg = entry.pkg,
-                ref = entry.ref;
-          let loc = entry.loc;
-
-
-          const packageName = pkg.name;
-          let packageReference = pkg.version;
-
-          // If we have peer dependencies, then we generate a new virtual reference based on the parent one
-          // We cannot generate this reference based on what those peer references resolve to, because they might not have
-          // been computed yet (for example, consider the case where A has a peer dependency on B, and B a peer dependency
-          // on A; it's valid, but it prevents us from computing A and B - and it's even worse with 3+ packages involved)
-          const peerDependencies = new Set(Array.from(Object.keys(pkg.peerDependencies || {})));
-
-          // As an optimization, we only setup virtual packages if their underlying packages are referenced multiple times
-          // in the tree. This allow us to avoid having to create symlinks in the majority of cases
-          if (peerDependencies.size > 0 && ref.requests.length > 1) {
-            const hash = getHashFrom([...parentData, packageName, packageReference]);
-
-            let symlinkSource;
-            let symlinkFile;
-
-            switch (ref.remote.type) {
-              case 'workspace':
-                {
-                  symlinkSource = loc;
-                  symlinkFile = path.resolve(config.lockfileFolder, '.pnp', 'workspaces', `pnp-${hash}`, packageName);
-
-                  loc = symlinkFile;
-                }
-                break;
-
-              default:
-                {
-                  const isFromCache = getCachePath(loc);
-
-                  const hashName = isFromCache && offlineCacheFolder ? `pnp-${hash}${OFFLINE_CACHE_EXTENSION}` : `pnp-${hash}`;
-                  const newLoc = path.resolve(config.lockfileFolder, '.pnp', 'externals', hashName, 'node_modules', packageName);
-
-                  // The `node_modules/<pkgName>` part is already there when the package comes from the cache
-                  if (isFromCache) {
-                    const getBase = function getBase(source) {
-                      return path.resolve(source, '../'.repeat(1 + packageName.split('/').length));
-                    };
-                    symlinkSource = resolveOfflineCacheFolder(getBase(loc));
-                    symlinkFile = getBase(newLoc);
-                  } else {
-                    symlinkSource = loc;
-                    symlinkFile = newLoc;
-                  }
-
-                  loc = newLoc;
-                }
-                break;
-            }
-
-            yield (_fs || _load_fs()).mkdirp(path.dirname(symlinkFile));
-            yield (_fs || _load_fs()).symlink(symlinkSource, symlinkFile);
-
-            packageReference = `pnp:${hash}`;
-
-            // We blacklist this path so that we can print a nicer error message if someone tries to require it (it usually
-            // means that they're using realpath on the return value of require.resolve)
-            blacklistedLocations.add(normalizeDirectoryPath(loc));
-          }
-
-          // Now that we have the final reference, we need to store it
-          resolutions.set(packageName, packageReference);
-          locations.set(packageName, loc);
-        }
-
-        // Now that we have the final references, we can start the main loop, which will insert the packages into the store
-        // if they aren't already there, and recurse over their own children
-        for (var _iterator12 = seedPatterns, _isArray12 = Array.isArray(_iterator12), _i12 = 0, _iterator12 = _isArray12 ? _iterator12 : _iterator12[Symbol.iterator]();;) {
-          var _ref21;
-
-          if (_isArray12) {
-            if (_i12 >= _iterator12.length) break;
-            _ref21 = _iterator12[_i12++];
-          } else {
-            _i12 = _iterator12.next();
-            if (_i12.done) break;
-            _ref21 = _i12.value;
-          }
-
-          const pattern = _ref21;
-
-          const entry = getResolverEntry(pattern);
-
-          if (!entry) {
-            continue;
-          }
-
-          const pkg = entry.pkg,
-                ref = entry.ref;
-
-
-          const packageName = pkg.name;
-
-          const packageReference = resolutions.get(packageName);
-          invariant(packageReference, `Package reference should have been computed during the pre-pass`);
-
-          const loc = locations.get(packageName);
-          invariant(loc, `Package location should have been computed during the pre-pass`);
-
-          // We can early exit if the package is already registered with the exact same name and reference, since even if
-          // we might get slightly different dependencies (depending on how things were optimized), both sets are valid
-          let packageInformationStore = packageInformationStores.get(packageName);
-
-          if (!packageInformationStore) {
-            packageInformationStore = new Map();
-            packageInformationStores.set(packageName, packageInformationStore);
-          }
-
-          let packageInformation = packageInformationStore.get(packageReference);
-
-          if (packageInformation) {
-            continue;
-          }
-
-          packageInformation = {
-            packageLocation: normalizeDirectoryPath(loc),
-            packageDependencies: new Map()
-          };
-
-          // Split the dependencies between direct/peer - we will only recurse on the former
-          const peerDependencies = new Set(Array.from(Object.keys(pkg.peerDependencies || {})));
-          const directDependencies = ref.dependencies.filter(function (pattern) {
-            const pkg = resolver.getStrictResolvedPattern(pattern);
-            return !pkg || !peerDependencies.has(pkg.name);
-          });
-
-          // We inject the partial information in the store right now so that we won't cycle indefinitely
-          packageInformationStore.set(packageReference, packageInformation);
-
-          // We must inject the peer dependencies before iterating; one of our dependencies might have a peer dependency
-          // on one of our peer dependencies, so it must be available from the start (we don't have to do that for direct
-          // dependencies, because the "visit" function that will iterate over them will automatically add the to the
-          // candidate resolutions as part of the first step, cf above)
-
-          for (var _iterator13 = peerDependencies, _isArray13 = Array.isArray(_iterator13), _i13 = 0, _iterator13 = _isArray13 ? _iterator13 : _iterator13[Symbol.iterator]();;) {
-            var _ref22;
-
-            if (_isArray13) {
-              if (_i13 >= _iterator13.length) break;
-              _ref22 = _iterator13[_i13++];
-            } else {
-              _i13 = _iterator13.next();
-              if (_i13.done) break;
-              _ref22 = _i13.value;
-            }
-
-            const dependencyName = _ref22;
-
-            const dependencyReference = resolutions.get(dependencyName);
-
-            if (dependencyReference) {
-              packageInformation.packageDependencies.set(dependencyName, dependencyReference);
-            }
-          }
-
-          const childResolutions = yield visit(packageInformation.packageDependencies, directDependencies, [packageName, packageReference]);
-
-          // We can now inject into our package the resolutions we got from the visit function
-          for (var _iterator14 = childResolutions.entries(), _isArray14 = Array.isArray(_iterator14), _i14 = 0, _iterator14 = _isArray14 ? _iterator14 : _iterator14[Symbol.iterator]();;) {
-            var _ref24;
-
-            if (_isArray14) {
-              if (_i14 >= _iterator14.length) break;
-              _ref24 = _iterator14[_i14++];
-            } else {
-              _i14 = _iterator14.next();
-              if (_i14.done) break;
-              _ref24 = _i14.value;
-            }
-
-            const _ref23 = _ref24;
-            const name = _ref23[0];
-            const reference = _ref23[1];
-
-            packageInformation.packageDependencies.set(name, reference);
-          }
-
-          // Finally, unless a package depends on a previous version of itself (that would be weird but correct...), we
-          // inject them an implicit dependency to themselves (so that they can require themselves)
-          if (!packageInformation.packageDependencies.has(packageName)) {
-            packageInformation.packageDependencies.set(packageName, packageReference);
-          }
-        }
-
-        return resolutions;
-      });
-
-      return function visit(_x4, _x5) {
-        return _ref19.apply(this, arguments);
-      };
-    })();
-
-    // If we have workspaces, we need to iterate over them all in order to add them to the map
-    // This is because they might not be declared as dependencies of the top-level project (and with reason, since the
-    // top-level package might depend on a different than the one provided in the workspaces - cf Babel, which depends
-    // on an old version of itself in order to compile itself)
-    if (workspaceLayout) {
-      for (var _iterator15 = Object.keys(workspaceLayout.workspaces), _isArray15 = Array.isArray(_iterator15), _i15 = 0, _iterator15 = _isArray15 ? _iterator15 : _iterator15[Symbol.iterator]();;) {
-        var _ref25;
-
-        if (_isArray15) {
-          if (_i15 >= _iterator15.length) break;
-          _ref25 = _iterator15[_i15++];
-        } else {
-          _i15 = _iterator15.next();
-          if (_i15.done) break;
-          _ref25 = _i15.value;
-        }
-
-        const name = _ref25;
-
-        const pkg = workspaceLayout.workspaces[name].manifest;
-
-        // Skip the aggregator, since it's essentially a duplicate of the top-level package that we'll iterate later on
-        if (pkg.workspaces) {
-          continue;
-        }
-
-        const ref = pkg._reference;
-        invariant(ref, `Workspaces should have a reference`);
-
-        invariant(ref.locations.length === 1, `Workspaces should have exactly one location`);
-        const loc = ref.locations[0];
-        invariant(loc, `Workspaces should have a location`);
-
-        let packageInformationStore = packageInformationStores.get(name);
-
-        if (!packageInformationStore) {
-          packageInformationStore = new Map();
-          packageInformationStores.set(name, packageInformationStore);
-        }
-
-        packageInformationStore.set(pkg.version, {
-          packageLocation: normalizeDirectoryPath(loc),
-          packageDependencies: yield visit(new Map(), ref.dependencies, [name, pkg.version])
-        });
-      }
-    }
-
-    // Register the top-level package in our map
-    // This will recurse on each of its dependencies as well.
-    packageInformationStores.set(null, new Map([[null, {
-      packageLocation: normalizeDirectoryPath(config.lockfileFolder),
-      packageDependencies: yield visit(new Map(), seedPatterns)
-    }]]));
-
-    return [packageInformationStores, blacklistedLocations];
-  });
-
-  return function getPackageInformationStores(_x, _x2, _x3) {
-    return _ref17.apply(this, arguments);
-  };
-})();
-
-let generatePnpMap = exports.generatePnpMap = (() => {
-  var _ref26 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (config, seedPatterns, { resolver, reporter, workspaceLayout, targetPath }) {
-    var _ref27 = yield getPackageInformationStores(config, seedPatterns, {
-      resolver,
-      reporter,
-      targetPath,
-      workspaceLayout
-    });
-
-    const packageInformationStores = _ref27[0],
-          blacklistedLocations = _ref27[1];
-
-
-    const setupStaticTables = [generateMaps(packageInformationStores, blacklistedLocations), generateFindPackageLocator(packageInformationStores)].join(``);
-
-    return pnpApi.replace(/\$\$SHEBANG/g, config.plugnplayShebang).replace(/\$\$BLACKLIST/g, JSON.stringify(config.plugnplayBlacklist)).replace(/\$\$SETUP_STATIC_TABLES\(\);/g, setupStaticTables);
-  });
-
-  return function generatePnpMap(_x6, _x7, _x8) {
-    return _ref26.apply(this, arguments);
-  };
-})();
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-/* babel-plugin-inline-import './generate-pnp-map-api.tpl.js' */const pnpApi = '#!$$SHEBANG\n\n/* eslint-disable max-len, flowtype/require-valid-file-annotation, flowtype/require-return-type */\n/* global packageInformationStores, $$BLACKLIST, $$SETUP_STATIC_TABLES */\n\n// Used for the resolveUnqualified part of the resolution (ie resolving folder/index.js & file extensions)\n// Deconstructed so that they aren\'t affected by any fs monkeypatching occuring later during the execution\nconst {statSync, lstatSync, readlinkSync, readFileSync, existsSync, realpathSync} = require(\'fs\');\n\nconst Module = require(\'module\');\nconst path = require(\'path\');\nconst StringDecoder = require(\'string_decoder\');\n\nconst ignorePattern = $$BLACKLIST ? new RegExp($$BLACKLIST) : null;\n\nconst pnpFile = path.resolve(__dirname, __filename);\nconst builtinModules = new Set(Module.builtinModules || Object.keys(process.binding(\'natives\')));\n\nconst topLevelLocator = {name: null, reference: null};\nconst blacklistedLocator = {name: NaN, reference: NaN};\n\n// Used for compatibility purposes - cf setupCompatibilityLayer\nconst patchedModules = [];\nconst fallbackLocators = [topLevelLocator];\n\n// Matches backslashes of Windows paths\nconst backwardSlashRegExp = /\\\\/g;\n\n// Matches if the path must point to a directory (ie ends with /)\nconst isDirRegExp = /\\/$/;\n\n// Matches if the path starts with a valid path qualifier (./, ../, /)\n// eslint-disable-next-line no-unused-vars\nconst isStrictRegExp = /^\\.{0,2}\\//;\n\n// Splits a require request into its components, or return null if the request is a file path\nconst pathRegExp = /^(?![a-zA-Z]:[\\\\\\/]|\\\\\\\\|\\.{0,2}(?:\\/|$))((?:@[^\\/]+\\/)?[^\\/]+)\\/?(.*|)$/;\n\n// Keep a reference around ("module" is a common name in this context, so better rename it to something more significant)\nconst pnpModule = module;\n\n/**\n * Used to disable the resolution hooks (for when we want to fallback to the previous resolution - we then need\n * a way to "reset" the environment temporarily)\n */\n\nlet enableNativeHooks = true;\n\n/**\n * Simple helper function that assign an error code to an error, so that it can more easily be caught and used\n * by third-parties.\n */\n\nfunction makeError(code, message, data = {}) {\n  const error = new Error(message);\n  return Object.assign(error, {code, data});\n}\n\n/**\n * Ensures that the returned locator isn\'t a blacklisted one.\n *\n * Blacklisted packages are packages that cannot be used because their dependencies cannot be deduced. This only\n * happens with peer dependencies, which effectively have different sets of dependencies depending on their parents.\n *\n * In order to deambiguate those different sets of dependencies, the Yarn implementation of PnP will generate a\n * symlink for each combination of <package name>/<package version>/<dependent package> it will find, and will\n * blacklist the target of those symlinks. By doing this, we ensure that files loaded through a specific path\n * will always have the same set of dependencies, provided the symlinks are correctly preserved.\n *\n * Unfortunately, some tools do not preserve them, and when it happens PnP isn\'t able anymore to deduce the set of\n * dependencies based on the path of the file that makes the require calls. But since we\'ve blacklisted those paths,\n * we\'re able to print a more helpful error message that points out that a third-party package is doing something\n * incompatible!\n */\n\n// eslint-disable-next-line no-unused-vars\nfunction blacklistCheck(locator) {\n  if (locator === blacklistedLocator) {\n    throw makeError(\n      `BLACKLISTED`,\n      [\n        `A package has been resolved through a blacklisted path - this is usually caused by one of your tools calling`,\n        `"realpath" on the return value of "require.resolve". Since the returned values use symlinks to disambiguate`,\n        `peer dependencies, they must be passed untransformed to "require".`,\n      ].join(` `)\n    );\n  }\n\n  return locator;\n}\n\n$$SETUP_STATIC_TABLES();\n\n/**\n * Returns the module that should be used to resolve require calls. It\'s usually the direct parent, except if we\'re\n * inside an eval expression.\n */\n\nfunction getIssuerModule(parent) {\n  let issuer = parent;\n\n  while (issuer && (issuer.id === \'[eval]\' || issuer.id === \'<repl>\' || !issuer.filename)) {\n    issuer = issuer.parent;\n  }\n\n  return issuer;\n}\n\n/**\n * Returns information about a package in a safe way (will throw if they cannot be retrieved)\n */\n\nfunction getPackageInformationSafe(packageLocator) {\n  const packageInformation = exports.getPackageInformation(packageLocator);\n\n  if (!packageInformation) {\n    throw makeError(\n      `INTERNAL`,\n      `Couldn\'t find a matching entry in the dependency tree for the specified parent (this is probably an internal error)`\n    );\n  }\n\n  return packageInformation;\n}\n\n/**\n * Implements the node resolution for folder access and extension selection\n */\n\nfunction applyNodeExtensionResolution(unqualifiedPath, {extensions}) {\n  // We use this "infinite while" so that we can restart the process as long as we hit package folders\n  while (true) {\n    let stat;\n\n    try {\n      stat = statSync(unqualifiedPath);\n    } catch (error) {}\n\n    // If the file exists and is a file, we can stop right there\n\n    if (stat && !stat.isDirectory()) {\n      // If the very last component of the resolved path is a symlink to a file, we then resolve it to a file. We only\n      // do this first the last component, and not the rest of the path! This allows us to support the case of bin\n      // symlinks, where a symlink in "/xyz/pkg-name/.bin/bin-name" will point somewhere else (like "/xyz/pkg-name/index.js").\n      // In such a case, we want relative requires to be resolved relative to "/xyz/pkg-name/" rather than "/xyz/pkg-name/.bin/".\n      //\n      // Also note that the reason we must use readlink on the last component (instead of realpath on the whole path)\n      // is that we must preserve the other symlinks, in particular those used by pnp to deambiguate packages using\n      // peer dependencies. For example, "/xyz/.pnp/local/pnp-01234569/.bin/bin-name" should see its relative requires\n      // be resolved relative to "/xyz/.pnp/local/pnp-0123456789/" rather than "/xyz/pkg-with-peers/", because otherwise\n      // we would lose the information that would tell us what are the dependencies of pkg-with-peers relative to its\n      // ancestors.\n\n      if (lstatSync(unqualifiedPath).isSymbolicLink()) {\n        unqualifiedPath = path.normalize(path.resolve(path.dirname(unqualifiedPath), readlinkSync(unqualifiedPath)));\n      }\n\n      return unqualifiedPath;\n    }\n\n    // If the file is a directory, we must check if it contains a package.json with a "main" entry\n\n    if (stat && stat.isDirectory()) {\n      let pkgJson;\n\n      try {\n        pkgJson = JSON.parse(readFileSync(`${unqualifiedPath}/package.json`, \'utf-8\'));\n      } catch (error) {}\n\n      let nextUnqualifiedPath;\n\n      if (pkgJson && pkgJson.main) {\n        nextUnqualifiedPath = path.resolve(unqualifiedPath, pkgJson.main);\n      }\n\n      // If the "main" field changed the path, we start again from this new location\n\n      if (nextUnqualifiedPath && nextUnqualifiedPath !== unqualifiedPath) {\n        const resolution = applyNodeExtensionResolution(nextUnqualifiedPath, {extensions});\n\n        if (resolution !== null) {\n          return resolution;\n        }\n      }\n    }\n\n    // Otherwise we check if we find a file that match one of the supported extensions\n\n    const qualifiedPath = extensions\n      .map(extension => {\n        return `${unqualifiedPath}${extension}`;\n      })\n      .find(candidateFile => {\n        return existsSync(candidateFile);\n      });\n\n    if (qualifiedPath) {\n      return qualifiedPath;\n    }\n\n    // Otherwise, we check if the path is a folder - in such a case, we try to use its index\n\n    if (stat && stat.isDirectory()) {\n      const indexPath = extensions\n        .map(extension => {\n          return `${unqualifiedPath}/index${extension}`;\n        })\n        .find(candidateFile => {\n          return existsSync(candidateFile);\n        });\n\n      if (indexPath) {\n        return indexPath;\n      }\n    }\n\n    // Otherwise there\'s nothing else we can do :(\n\n    return null;\n  }\n}\n\n/**\n * This function creates fake modules that can be used with the _resolveFilename function.\n * Ideally it would be nice to be able to avoid this, since it causes useless allocations\n * and cannot be cached efficiently (we recompute the nodeModulePaths every time).\n *\n * Fortunately, this should only affect the fallback, and there hopefully shouldn\'t be a\n * lot of them.\n */\n\nfunction makeFakeModule(path) {\n  const fakeModule = new Module(path, false);\n  fakeModule.filename = path;\n  fakeModule.paths = Module._nodeModulePaths(path);\n  return fakeModule;\n}\n\n/**\n * Normalize path to posix format.\n */\n\nfunction normalizePath(fsPath) {\n  fsPath = path.normalize(fsPath);\n\n  if (process.platform === \'win32\') {\n    fsPath = fsPath.replace(backwardSlashRegExp, \'/\');\n  }\n\n  return fsPath;\n}\n\n/**\n * Forward the resolution to the next resolver (usually the native one)\n */\n\nfunction callNativeResolution(request, issuer) {\n  if (issuer.endsWith(\'/\')) {\n    issuer += \'internal.js\';\n  }\n\n  try {\n    enableNativeHooks = false;\n\n    // Since we would need to create a fake module anyway (to call _resolveLookupPath that\n    // would give us the paths to give to _resolveFilename), we can as well not use\n    // the {paths} option at all, since it internally makes _resolveFilename create another\n    // fake module anyway.\n    return Module._resolveFilename(request, makeFakeModule(issuer), false);\n  } finally {\n    enableNativeHooks = true;\n  }\n}\n\n/**\n * This key indicates which version of the standard is implemented by this resolver. The `std` key is the\n * Plug\'n\'Play standard, and any other key are third-party extensions. Third-party extensions are not allowed\n * to override the standard, and can only offer new methods.\n *\n * If an new version of the Plug\'n\'Play standard is released and some extensions conflict with newly added\n * functions, they\'ll just have to fix the conflicts and bump their own version number.\n */\n\nexports.VERSIONS = {std: 1};\n\n/**\n * Useful when used together with getPackageInformation to fetch information about the top-level package.\n */\n\nexports.topLevel = {name: null, reference: null};\n\n/**\n * Gets the package information for a given locator. Returns null if they cannot be retrieved.\n */\n\nexports.getPackageInformation = function getPackageInformation({name, reference}) {\n  const packageInformationStore = packageInformationStores.get(name);\n\n  if (!packageInformationStore) {\n    return null;\n  }\n\n  const packageInformation = packageInformationStore.get(reference);\n\n  if (!packageInformation) {\n    return null;\n  }\n\n  return packageInformation;\n};\n\n/**\n * Transforms a request (what\'s typically passed as argument to the require function) into an unqualified path.\n * This path is called "unqualified" because it only changes the package name to the package location on the disk,\n * which means that the end result still cannot be directly accessed (for example, it doesn\'t try to resolve the\n * file extension, or to resolve directories to their "index.js" content). Use the "resolveUnqualified" function\n * to convert them to fully-qualified paths, or just use "resolveRequest" that do both operations in one go.\n *\n * Note that it is extremely important that the `issuer` path ends with a forward slash if the issuer is to be\n * treated as a folder (ie. "/tmp/foo/" rather than "/tmp/foo" if "foo" is a directory). Otherwise relative\n * imports won\'t be computed correctly (they\'ll get resolved relative to "/tmp/" instead of "/tmp/foo/").\n */\n\nexports.resolveToUnqualified = function resolveToUnqualified(request, issuer, {considerBuiltins = true} = {}) {\n  // The \'pnpapi\' request is reserved and will always return the path to the PnP file, from everywhere\n\n  if (request === `pnpapi`) {\n    return pnpFile;\n  }\n\n  // Bailout if the request is a native module\n\n  if (considerBuiltins && builtinModules.has(request)) {\n    return null;\n  }\n\n  // We allow disabling the pnp resolution for some subpaths. This is because some projects, often legacy,\n  // contain multiple levels of dependencies (ie. a yarn.lock inside a subfolder of a yarn.lock). This is\n  // typically solved using workspaces, but not all of them have been converted already.\n\n  if (ignorePattern && ignorePattern.test(normalizePath(issuer))) {\n    const result = callNativeResolution(request, issuer);\n\n    if (result === false) {\n      throw makeError(\n        `BUILTIN_NODE_RESOLUTION_FAIL`,\n        `The builtin node resolution algorithm was unable to resolve the module referenced by "${request}" and requested from "${issuer}" (it didn\'t go through the pnp resolver because the issuer was explicitely ignored by the regexp "$$BLACKLIST")`,\n        {\n          request,\n          issuer,\n        }\n      );\n    }\n\n    return result;\n  }\n\n  let unqualifiedPath;\n\n  // If the request is a relative or absolute path, we just return it normalized\n\n  const dependencyNameMatch = request.match(pathRegExp);\n\n  if (!dependencyNameMatch) {\n    if (path.isAbsolute(request)) {\n      unqualifiedPath = path.normalize(request);\n    } else if (issuer.match(isDirRegExp)) {\n      unqualifiedPath = path.normalize(path.resolve(issuer, request));\n    } else {\n      unqualifiedPath = path.normalize(path.resolve(path.dirname(issuer), request));\n    }\n  }\n\n  // Things are more hairy if it\'s a package require - we then need to figure out which package is needed, and in\n  // particular the exact version for the given location on the dependency tree\n\n  if (dependencyNameMatch) {\n    const [, dependencyName, subPath] = dependencyNameMatch;\n\n    const issuerLocator = exports.findPackageLocator(issuer);\n\n    // If the issuer file doesn\'t seem to be owned by a package managed through pnp, then we resort to using the next\n    // resolution algorithm in the chain, usually the native Node resolution one\n\n    if (!issuerLocator) {\n      const result = callNativeResolution(request, issuer);\n\n      if (result === false) {\n        throw makeError(\n          `BUILTIN_NODE_RESOLUTION_FAIL`,\n          `The builtin node resolution algorithm was unable to resolve the module referenced by "${request}" and requested from "${issuer}" (it didn\'t go through the pnp resolver because the issuer doesn\'t seem to be part of the Yarn-managed dependency tree)`,\n          {\n            request,\n            issuer,\n          }\n        );\n      }\n\n      return result;\n    }\n\n    const issuerInformation = getPackageInformationSafe(issuerLocator);\n\n    // We obtain the dependency reference in regard to the package that request it\n\n    let dependencyReference = issuerInformation.packageDependencies.get(dependencyName);\n\n    // If we can\'t find it, we check if we can potentially load it from the packages that have been defined as potential fallbacks.\n    // It\'s a bit of a hack, but it improves compatibility with the existing Node ecosystem. Hopefully we should eventually be able\n    // to kill this logic and become stricter once pnp gets enough traction and the affected packages fix themselves.\n\n    if (issuerLocator !== topLevelLocator) {\n      for (let t = 0, T = fallbackLocators.length; dependencyReference === undefined && t < T; ++t) {\n        const fallbackInformation = getPackageInformationSafe(fallbackLocators[t]);\n        dependencyReference = fallbackInformation.packageDependencies.get(dependencyName);\n      }\n    }\n\n    // If we can\'t find the path, and if the package making the request is the top-level, we can offer nicer error messages\n\n    if (!dependencyReference) {\n      if (dependencyReference === null) {\n        if (issuerLocator === topLevelLocator) {\n          throw makeError(\n            `MISSING_PEER_DEPENDENCY`,\n            `You seem to be requiring a peer dependency ("${dependencyName}"), but it is not installed (which might be because you\'re the top-level package)`,\n            {request, issuer, dependencyName}\n          );\n        } else {\n          throw makeError(\n            `MISSING_PEER_DEPENDENCY`,\n            `Package "${issuerLocator.name}@${issuerLocator.reference}" is trying to access a peer dependency ("${dependencyName}") that should be provided by its direct ancestor but isn\'t`,\n            {request, issuer, issuerLocator: Object.assign({}, issuerLocator), dependencyName}\n          );\n        }\n      } else {\n        if (issuerLocator === topLevelLocator) {\n          throw makeError(\n            `UNDECLARED_DEPENDENCY`,\n            `You cannot require a package ("${dependencyName}") that is not declared in your dependencies (via "${issuer}")`,\n            {request, issuer, dependencyName}\n          );\n        } else {\n          const candidates = Array.from(issuerInformation.packageDependencies.keys());\n          throw makeError(\n            `UNDECLARED_DEPENDENCY`,\n            `Package "${issuerLocator.name}@${issuerLocator.reference}" (via "${issuer}") is trying to require the package "${dependencyName}" (via "${request}") without it being listed in its dependencies (${candidates.join(\n              `, `\n            )})`,\n            {request, issuer, issuerLocator: Object.assign({}, issuerLocator), dependencyName, candidates}\n          );\n        }\n      }\n    }\n\n    // We need to check that the package exists on the filesystem, because it might not have been installed\n\n    const dependencyLocator = {name: dependencyName, reference: dependencyReference};\n    const dependencyInformation = exports.getPackageInformation(dependencyLocator);\n    const dependencyLocation = path.resolve(__dirname, dependencyInformation.packageLocation);\n\n    if (!dependencyLocation) {\n      throw makeError(\n        `MISSING_DEPENDENCY`,\n        `Package "${dependencyLocator.name}@${dependencyLocator.reference}" is a valid dependency, but hasn\'t been installed and thus cannot be required (it might be caused if you install a partial tree, such as on production environments)`,\n        {request, issuer, dependencyLocator: Object.assign({}, dependencyLocator)}\n      );\n    }\n\n    // Now that we know which package we should resolve to, we only have to find out the file location\n\n    if (subPath) {\n      unqualifiedPath = path.resolve(dependencyLocation, subPath);\n    } else {\n      unqualifiedPath = dependencyLocation;\n    }\n  }\n\n  return path.normalize(unqualifiedPath);\n};\n\n/**\n * Transforms an unqualified path into a qualified path by using the Node resolution algorithm (which automatically\n * appends ".js" / ".json", and transforms directory accesses into "index.js").\n */\n\nexports.resolveUnqualified = function resolveUnqualified(\n  unqualifiedPath,\n  {extensions = Object.keys(Module._extensions)} = {}\n) {\n  const qualifiedPath = applyNodeExtensionResolution(unqualifiedPath, {extensions});\n\n  if (qualifiedPath) {\n    return path.normalize(qualifiedPath);\n  } else {\n    throw makeError(\n      `QUALIFIED_PATH_RESOLUTION_FAILED`,\n      `Couldn\'t find a suitable Node resolution for unqualified path "${unqualifiedPath}"`,\n      {unqualifiedPath}\n    );\n  }\n};\n\n/**\n * Transforms a request into a fully qualified path.\n *\n * Note that it is extremely important that the `issuer` path ends with a forward slash if the issuer is to be\n * treated as a folder (ie. "/tmp/foo/" rather than "/tmp/foo" if "foo" is a directory). Otherwise relative\n * imports won\'t be computed correctly (they\'ll get resolved relative to "/tmp/" instead of "/tmp/foo/").\n */\n\nexports.resolveRequest = function resolveRequest(request, issuer, {considerBuiltins, extensions} = {}) {\n  let unqualifiedPath;\n\n  try {\n    unqualifiedPath = exports.resolveToUnqualified(request, issuer, {considerBuiltins});\n  } catch (originalError) {\n    // If we get a BUILTIN_NODE_RESOLUTION_FAIL error there, it means that we\'ve had to use the builtin node\n    // resolution, which usually shouldn\'t happen. It might be because the user is trying to require something\n    // from a path loaded through a symlink (which is not possible, because we need something normalized to\n    // figure out which package is making the require call), so we try to make the same request using a fully\n    // resolved issuer and throws a better and more actionable error if it works.\n    if (originalError.code === `BUILTIN_NODE_RESOLUTION_FAIL`) {\n      let realIssuer;\n\n      try {\n        realIssuer = realpathSync(issuer);\n      } catch (error) {}\n\n      if (realIssuer) {\n        if (issuer.endsWith(`/`)) {\n          realIssuer = realIssuer.replace(/\\/?$/, `/`);\n        }\n\n        try {\n          exports.resolveToUnqualified(request, realIssuer, {considerBuiltins});\n        } catch (error) {\n          // If an error was thrown, the problem doesn\'t seem to come from a path not being normalized, so we\n          // can just throw the original error which was legit.\n          throw originalError;\n        }\n\n        // If we reach this stage, it means that resolveToUnqualified didn\'t fail when using the fully resolved\n        // file path, which is very likely caused by a module being invoked through Node with a path not being\n        // correctly normalized (ie you should use "node $(realpath script.js)" instead of "node script.js").\n        throw makeError(\n          `SYMLINKED_PATH_DETECTED`,\n          `A pnp module ("${request}") has been required from what seems to be a symlinked path ("${issuer}"). This is not possible, you must ensure that your modules are invoked through their fully resolved path on the filesystem (in this case "${realIssuer}").`,\n          {\n            request,\n            issuer,\n            realIssuer,\n          }\n        );\n      }\n    }\n    throw originalError;\n  }\n\n  if (unqualifiedPath === null) {\n    return null;\n  }\n\n  try {\n    return exports.resolveUnqualified(unqualifiedPath, {extensions});\n  } catch (resolutionError) {\n    if (resolutionError.code === \'QUALIFIED_PATH_RESOLUTION_FAILED\') {\n      Object.assign(resolutionError.data, {request, issuer});\n    }\n    throw resolutionError;\n  }\n};\n\n/**\n * Setups the hook into the Node environment.\n *\n * From this point on, any call to `require()` will go through the "resolveRequest" function, and the result will\n * be used as path of the file to load.\n */\n\nexports.setup = function setup() {\n  // A small note: we don\'t replace the cache here (and instead use the native one). This is an effort to not\n  // break code similar to "delete require.cache[require.resolve(FOO)]", where FOO is a package located outside\n  // of the Yarn dependency tree. In this case, we defer the load to the native loader. If we were to replace the\n  // cache by our own, the native loader would populate its own cache, which wouldn\'t be exposed anymore, so the\n  // delete call would be broken.\n\n  const originalModuleLoad = Module._load;\n\n  Module._load = function(request, parent, isMain) {\n    if (!enableNativeHooks) {\n      return originalModuleLoad.call(Module, request, parent, isMain);\n    }\n\n    // Builtins are managed by the regular Node loader\n\n    if (builtinModules.has(request)) {\n      try {\n        enableNativeHooks = false;\n        return originalModuleLoad.call(Module, request, parent, isMain);\n      } finally {\n        enableNativeHooks = true;\n      }\n    }\n\n    // The \'pnpapi\' name is reserved to return the PnP api currently in use by the program\n\n    if (request === `pnpapi`) {\n      return pnpModule.exports;\n    }\n\n    // Request `Module._resolveFilename` (ie. `resolveRequest`) to tell us which file we should load\n\n    const modulePath = Module._resolveFilename(request, parent, isMain);\n\n    // Check if the module has already been created for the given file\n\n    const cacheEntry = Module._cache[modulePath];\n\n    if (cacheEntry) {\n      return cacheEntry.exports;\n    }\n\n    // Create a new module and store it into the cache\n\n    const module = new Module(modulePath, parent);\n    Module._cache[modulePath] = module;\n\n    // The main module is exposed as global variable\n\n    if (isMain) {\n      process.mainModule = module;\n      module.id = \'.\';\n    }\n\n    // Try to load the module, and remove it from the cache if it fails\n\n    let hasThrown = true;\n\n    try {\n      module.load(modulePath);\n      hasThrown = false;\n    } finally {\n      if (hasThrown) {\n        delete Module._cache[modulePath];\n      }\n    }\n\n    // Some modules might have to be patched for compatibility purposes\n\n    for (const [filter, patchFn] of patchedModules) {\n      if (filter.test(request)) {\n        module.exports = patchFn(exports.findPackageLocator(parent.filename), module.exports);\n      }\n    }\n\n    return module.exports;\n  };\n\n  const originalModuleResolveFilename = Module._resolveFilename;\n\n  Module._resolveFilename = function(request, parent, isMain, options) {\n    if (!enableNativeHooks) {\n      return originalModuleResolveFilename.call(Module, request, parent, isMain, options);\n    }\n\n    let issuers;\n\n    if (options) {\n      const optionNames = new Set(Object.keys(options));\n      optionNames.delete(\'paths\');\n\n      if (optionNames.size > 0) {\n        throw makeError(\n          `UNSUPPORTED`,\n          `Some options passed to require() aren\'t supported by PnP yet (${Array.from(optionNames).join(\', \')})`\n        );\n      }\n\n      if (options.paths) {\n        issuers = options.paths.map(entry => `${path.normalize(entry)}/`);\n      }\n    }\n\n    if (!issuers) {\n      const issuerModule = getIssuerModule(parent);\n      const issuer = issuerModule ? issuerModule.filename : `${process.cwd()}/`;\n\n      issuers = [issuer];\n    }\n\n    let firstError;\n\n    for (const issuer of issuers) {\n      let resolution;\n\n      try {\n        resolution = exports.resolveRequest(request, issuer);\n      } catch (error) {\n        firstError = firstError || error;\n        continue;\n      }\n\n      return resolution !== null ? resolution : request;\n    }\n\n    throw firstError;\n  };\n\n  const originalFindPath = Module._findPath;\n\n  Module._findPath = function(request, paths, isMain) {\n    if (!enableNativeHooks) {\n      return originalFindPath.call(Module, request, paths, isMain);\n    }\n\n    for (const path of paths || []) {\n      let resolution;\n\n      try {\n        resolution = exports.resolveRequest(request, path);\n      } catch (error) {\n        continue;\n      }\n\n      if (resolution) {\n        return resolution;\n      }\n    }\n\n    return false;\n  };\n\n  process.versions.pnp = String(exports.VERSIONS.std);\n};\n\nexports.setupCompatibilityLayer = () => {\n  // ESLint currently doesn\'t have any portable way for shared configs to specify their own\n  // plugins that should be used (https://github.com/eslint/eslint/issues/10125). This will\n  // likely get fixed at some point, but it\'ll take time and in the meantime we\'ll just add\n  // additional fallback entries for common shared configs.\n\n  for (const name of [`react-scripts`]) {\n    const packageInformationStore = packageInformationStores.get(name);\n    if (packageInformationStore) {\n      for (const reference of packageInformationStore.keys()) {\n        fallbackLocators.push({name, reference});\n      }\n    }\n  }\n\n  // Modern versions of `resolve` support a specific entry point that custom resolvers can use\n  // to inject a specific resolution logic without having to patch the whole package.\n  //\n  // Cf: https://github.com/browserify/resolve/pull/174\n\n  patchedModules.push([\n    /^\\.\\/normalize-options\\.js$/,\n    (issuer, normalizeOptions) => {\n      if (!issuer || issuer.name !== \'resolve\') {\n        return normalizeOptions;\n      }\n\n      return (request, opts) => {\n        opts = opts || {};\n\n        if (opts.forceNodeResolution) {\n          return opts;\n        }\n\n        opts.preserveSymlinks = true;\n        opts.paths = function(request, basedir, getNodeModulesDir, opts) {\n          // Extract the name of the package being requested (1=full name, 2=scope name, 3=local name)\n          const parts = request.match(/^((?:(@[^\\/]+)\\/)?([^\\/]+))/);\n\n          // make sure that basedir ends with a slash\n          if (basedir.charAt(basedir.length - 1) !== \'/\') {\n            basedir = path.join(basedir, \'/\');\n          }\n          // This is guaranteed to return the path to the "package.json" file from the given package\n          const manifestPath = exports.resolveToUnqualified(`${parts[1]}/package.json`, basedir);\n\n          // The first dirname strips the package.json, the second strips the local named folder\n          let nodeModules = path.dirname(path.dirname(manifestPath));\n\n          // Strips the scope named folder if needed\n          if (parts[2]) {\n            nodeModules = path.dirname(nodeModules);\n          }\n\n          return [nodeModules];\n        };\n\n        return opts;\n      };\n    },\n  ]);\n};\n\nif (module.parent && module.parent.id === \'internal/preload\') {\n  exports.setupCompatibilityLayer();\n\n  exports.setup();\n}\n\nif (process.mainModule === module) {\n  exports.setupCompatibilityLayer();\n\n  const reportError = (code, message, data) => {\n    process.stdout.write(`${JSON.stringify([{code, message, data}, null])}\\n`);\n  };\n\n  const reportSuccess = resolution => {\n    process.stdout.write(`${JSON.stringify([null, resolution])}\\n`);\n  };\n\n  const processResolution = (request, issuer) => {\n    try {\n      reportSuccess(exports.resolveRequest(request, issuer));\n    } catch (error) {\n      reportError(error.code, error.message, error.data);\n    }\n  };\n\n  const processRequest = data => {\n    try {\n      const [request, issuer] = JSON.parse(data);\n      processResolution(request, issuer);\n    } catch (error) {\n      reportError(`INVALID_JSON`, error.message, error.data);\n    }\n  };\n\n  if (process.argv.length > 2) {\n    if (process.argv.length !== 4) {\n      process.stderr.write(`Usage: ${process.argv[0]} ${process.argv[1]} <request> <issuer>\\n`);\n      process.exitCode = 64; /* EX_USAGE */\n    } else {\n      processResolution(process.argv[2], process.argv[3]);\n    }\n  } else {\n    let buffer = \'\';\n    const decoder = new StringDecoder.StringDecoder();\n\n    process.stdin.on(\'data\', chunk => {\n      buffer += decoder.write(chunk);\n\n      do {\n        const index = buffer.indexOf(\'\\n\');\n        if (index === -1) {\n          break;\n        }\n\n        const line = buffer.slice(0, index);\n        buffer = buffer.slice(index + 1);\n\n        processRequest(line);\n      } while (true);\n    });\n  }\n}\n';
-
-
-const crypto = __webpack_require__(11);
-const invariant = __webpack_require__(9);
-const path = __webpack_require__(0);
-
-const backwardSlashRegExp = /\\/g;
-
-const OFFLINE_CACHE_EXTENSION = `.zip`;
-
-function generateMaps(packageInformationStores, blacklistedLocations) {
-  let code = ``;
-
-  // Bake the information stores into our generated code
-  code += `let packageInformationStores = new Map([\n`;
-  for (var _iterator = packageInformationStores, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref2 = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref2 = _i.value;
-    }
-
-    const _ref = _ref2;
-    const packageName = _ref[0];
-    const packageInformationStore = _ref[1];
-
-    code += `  [${JSON.stringify(packageName)}, new Map([\n`;
-    for (var _iterator4 = packageInformationStore, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-      var _ref7;
-
-      if (_isArray4) {
-        if (_i4 >= _iterator4.length) break;
-        _ref7 = _iterator4[_i4++];
-      } else {
-        _i4 = _iterator4.next();
-        if (_i4.done) break;
-        _ref7 = _i4.value;
-      }
-
-      const _ref6 = _ref7;
-      const packageReference = _ref6[0];
-      var _ref6$ = _ref6[1];
-      const packageLocation = _ref6$.packageLocation;
-      const packageDependencies = _ref6$.packageDependencies;
-
-      code += `    [${JSON.stringify(packageReference)}, {\n`;
-      code += `      packageLocation: path.resolve(__dirname, ${JSON.stringify(packageLocation)}),\n`;
-      code += `      packageDependencies: new Map([\n`;
-      for (var _iterator5 = packageDependencies.entries(), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-        var _ref9;
-
-        if (_isArray5) {
-          if (_i5 >= _iterator5.length) break;
-          _ref9 = _iterator5[_i5++];
-        } else {
-          _i5 = _iterator5.next();
-          if (_i5.done) break;
-          _ref9 = _i5.value;
-        }
-
-        const _ref8 = _ref9;
-        const dependencyName = _ref8[0];
-        const dependencyReference = _ref8[1];
-
-        code += `        [${JSON.stringify(dependencyName)}, ${JSON.stringify(dependencyReference)}],\n`;
-      }
-      code += `      ]),\n`;
-      code += `    }],\n`;
-    }
-    code += `  ])],\n`;
-  }
-  code += `]);\n`;
-
-  code += `\n`;
-
-  // Also bake an inverse map that will allow us to find the package information based on the path
-  code += `let locatorsByLocations = new Map([\n`;
-  for (var _iterator2 = blacklistedLocations, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref3;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref3 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref3 = _i2.value;
-    }
-
-    const blacklistedLocation = _ref3;
-
-    code += `  [${JSON.stringify(blacklistedLocation)}, blacklistedLocator],\n`;
-  }
-  for (var _iterator3 = packageInformationStores, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-    var _ref5;
-
-    if (_isArray3) {
-      if (_i3 >= _iterator3.length) break;
-      _ref5 = _iterator3[_i3++];
-    } else {
-      _i3 = _iterator3.next();
-      if (_i3.done) break;
-      _ref5 = _i3.value;
-    }
-
-    const _ref4 = _ref5;
-    const packageName = _ref4[0];
-    const packageInformationStore = _ref4[1];
-
-    for (var _iterator6 = packageInformationStore, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-      var _ref11;
-
-      if (_isArray6) {
-        if (_i6 >= _iterator6.length) break;
-        _ref11 = _iterator6[_i6++];
-      } else {
-        _i6 = _iterator6.next();
-        if (_i6.done) break;
-        _ref11 = _i6.value;
-      }
-
-      const _ref10 = _ref11;
-      const packageReference = _ref10[0];
-      const packageLocation = _ref10[1].packageLocation;
-
-      if (packageName !== null) {
-        code += `  [${JSON.stringify(packageLocation)}, ${JSON.stringify({
-          name: packageName,
-          reference: packageReference
-        })}],\n`;
-      } else {
-        code += `  [${JSON.stringify(packageLocation)}, topLevelLocator],\n`;
-      }
-    }
-  }
-  code += `]);\n`;
-
-  return code;
-}
-
-function generateFindPackageLocator(packageInformationStores) {
-  let code = ``;
-
-  // We get the list of each string length we'll need to check in order to find the current package context
-  const lengths = new Map();
-
-  for (var _iterator7 = packageInformationStores.values(), _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-    var _ref12;
-
-    if (_isArray7) {
-      if (_i7 >= _iterator7.length) break;
-      _ref12 = _iterator7[_i7++];
-    } else {
-      _i7 = _iterator7.next();
-      if (_i7.done) break;
-      _ref12 = _i7.value;
-    }
-
-    const packageInformationStore = _ref12;
-
-    for (var _iterator9 = packageInformationStore.values(), _isArray9 = Array.isArray(_iterator9), _i9 = 0, _iterator9 = _isArray9 ? _iterator9 : _iterator9[Symbol.iterator]();;) {
-      var _ref16;
-
-      if (_isArray9) {
-        if (_i9 >= _iterator9.length) break;
-        _ref16 = _iterator9[_i9++];
-      } else {
-        _i9 = _iterator9.next();
-        if (_i9.done) break;
-        _ref16 = _i9.value;
-      }
-
-      const _ref15 = _ref16;
-      const packageLocation = _ref15.packageLocation;
-
-      if (packageLocation === null) {
-        continue;
-      }
-
-      const length = packageLocation.length;
-      const count = (lengths.get(length) || 0) + 1;
-
-      lengths.set(length, count);
-    }
-  }
-
-  // We must try the larger lengths before the smaller ones, because smaller ones might also match the longest ones
-  // (for instance, /project/path will match /project/path/.pnp/global/node_modules/pnp-cf5f9c17b8f8db)
-  const sortedLengths = Array.from(lengths.entries()).sort((a, b) => {
-    return b[0] - a[0];
-  });
-
-  // Generate a function that, given a file path, returns the associated package name
-  code += `exports.findPackageLocator = function findPackageLocator(location) {\n`;
-  code += `  let relativeLocation = normalizePath(path.relative(__dirname, location));\n`;
-  code += `\n`;
-  code += `  if (!relativeLocation.match(isStrictRegExp))\n`;
-  code += `    relativeLocation = \`./\${relativeLocation}\`;\n`;
-  code += `\n`;
-  code += `  if (location.match(isDirRegExp) && relativeLocation.charAt(relativeLocation.length - 1) !== '/')\n`;
-  code += `    relativeLocation = \`\${relativeLocation}/\`;\n`;
-  code += `\n`;
-  code += `  let match;\n`;
-
-  for (var _iterator8 = sortedLengths, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
-    var _ref14;
-
-    if (_isArray8) {
-      if (_i8 >= _iterator8.length) break;
-      _ref14 = _iterator8[_i8++];
-    } else {
-      _i8 = _iterator8.next();
-      if (_i8.done) break;
-      _ref14 = _i8.value;
-    }
-
-    const _ref13 = _ref14;
-    const length = _ref13[0];
-
-    code += `\n`;
-    code += `  if (relativeLocation.length >= ${length} && relativeLocation[${length - 1}] === '/')\n`;
-    code += `    if (match = locatorsByLocations.get(relativeLocation.substr(0, ${length})))\n`;
-    code += `      return blacklistCheck(match);\n`;
-  }
-
-  code += `\n`;
-  code += `  return null;\n`;
-  code += `};\n`;
-
-  return code;
-}
-
-/***/ }),
-/* 580 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.getTransitiveDevDependencies = getTransitiveDevDependencies;
-function dependenciesObjectToPatterns(dependencies) {
-  if (!dependencies) {
-    return [];
-  }
-  return Object.keys(dependencies).map(name => `${name}@${(dependencies || {})[name]}`);
-}
-
-// Enumerate all the transitive dependencies of a set of top-level packages
-function getTransitiveDependencies(lockfile, roots) {
-  // Queue of dependency patterns to visit; set of already-visited patterns
-  const queue = [];
-  const patterns = new Set();
-
-  const enqueue = pattern => {
-    if (patterns.has(pattern)) {
-      return;
-    }
-    patterns.add(pattern);
-    queue.push(pattern);
-  };
-
-  roots.forEach(enqueue);
-
-  // Final result set
-  const transitiveDependencies = new Set();
-
-  while (queue.length > 0) {
-    const pattern = queue.shift();
-    const lockManifest = lockfile.getLocked(pattern);
-
-    if (!lockManifest) {
-      continue;
-    }
-
-    // Add the dependency to the result set
-    transitiveDependencies.add(`${lockManifest.name}@${lockManifest.version}`);
-
-    // Enqueue any dependencies of the dependency for processing
-
-    const dependencyPatterns = dependenciesObjectToPatterns(lockManifest.dependencies);
-    dependencyPatterns.forEach(enqueue);
-
-    const optionalDependencyPatterns = dependenciesObjectToPatterns(lockManifest.optionalDependencies);
-    optionalDependencyPatterns.forEach(enqueue);
-  }
-
-  return transitiveDependencies;
-}
-
-function setDifference(x, y) {
-  return new Set([...x].filter(value => !y.has(value)));
-}
-
-// Given a manifest, an optional workspace layout, and a lockfile, enumerate
-// all package versions that:
-// i) are present in the lockfile
-// ii) are a transitive dependency of some top-level devDependency
-// iii) are not a transitive dependency of some top-level production dependency
-function getTransitiveDevDependencies(packageManifest, workspaceLayout, lockfile) {
-  // Enumerate the top-level package manifest as well as any workspace manifests
-  const manifests = [packageManifest];
-  if (workspaceLayout) {
-    for (var _iterator = Object.keys(workspaceLayout.workspaces), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const name = _ref;
-
-      manifests.push(workspaceLayout.workspaces[name].manifest);
-    }
-  }
-
-  // Collect all the top-level production and development dependencies across all manifests
-  let productionRoots = [];
-  let developmentRoots = [];
-  for (var _iterator2 = manifests, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref2 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref2 = _i2.value;
-    }
-
-    const manifest = _ref2;
-
-    productionRoots = productionRoots.concat(dependenciesObjectToPatterns(manifest.dependencies));
-    productionRoots = productionRoots.concat(dependenciesObjectToPatterns(manifest.optionalDependencies));
-    developmentRoots = developmentRoots.concat(dependenciesObjectToPatterns(manifest.devDependencies));
-  }
-
-  // Enumerate all the transitive production and development dependencies
-  const productionDependencies = getTransitiveDependencies(lockfile, productionRoots);
-  const developmentDependencies = getTransitiveDependencies(lockfile, developmentRoots);
-
-  // Exclude any development dependencies that are also production dependencies
-  return setDifference(developmentDependencies, productionDependencies);
-}
-
-/***/ }),
-/* 581 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.parseRefs = exports.resolveVersion = exports.isCommitSha = undefined;
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _misc;
-
-function _load_misc() {
-  return _misc = __webpack_require__(18);
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const semver = __webpack_require__(22);
-
-const REF_PREFIX = 'refs/';
-const REF_TAG_PREFIX = 'refs/tags/';
-const REF_BRANCH_PREFIX = 'refs/heads/';
-const REF_PR_PREFIX = 'refs/pull/';
-
-// This regex is designed to match output from git of the style:
-//   ebeb6eafceb61dd08441ffe086c77eb472842494  refs/tags/v0.21.0
-// and extract the hash and ref name as capture groups
-const GIT_REF_LINE_REGEXP = /^([a-fA-F0-9]+)\s+(refs\/(?:tags|heads|pull|remotes)\/.*)$/;
-
-const COMMIT_SHA_REGEXP = /^[a-f0-9]{5,40}$/;
-const REF_NAME_REGEXP = /^refs\/(tags|heads)\/(.+)$/;
-
-const isCommitSha = exports.isCommitSha = target => COMMIT_SHA_REGEXP.test(target);
-
-const tryVersionAsGitCommit = ({ version, refs, git }) => {
-  const lowercaseVersion = version.toLowerCase();
-  if (!isCommitSha(lowercaseVersion)) {
-    return Promise.resolve(null);
-  }
-  for (var _iterator = refs.entries(), _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref2;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref2 = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref2 = _i.value;
-    }
-
-    const _ref = _ref2;
-    const ref = _ref[0];
-    const sha = _ref[1];
-
-    if (sha.startsWith(lowercaseVersion)) {
-      return Promise.resolve({ sha, ref });
-    }
-  }
-  return git.resolveCommit(lowercaseVersion);
-};
-
-const tryEmptyVersionAsDefaultBranch = ({ version, git }) => version.trim() === '' ? git.resolveDefaultBranch() : Promise.resolve(null);
-
-const tryWildcardVersionAsDefaultBranch = ({ version, git }) => version === '*' ? git.resolveDefaultBranch() : Promise.resolve(null);
-
-const tryRef = (refs, ref) => {
-  const sha = refs.get(ref);
-  return sha ? { sha, ref } : null;
-};
-
-const tryVersionAsFullRef = ({ version, refs }) => version.startsWith('refs/') ? tryRef(refs, version) : null;
-
-const tryVersionAsTagName = ({ version, refs }) => tryRef(refs, `${REF_TAG_PREFIX}${version}`);
-
-const tryVersionAsPullRequestNo = ({ version, refs }) => tryRef(refs, `${REF_PR_PREFIX}${version}`);
-
-const tryVersionAsBranchName = ({ version, refs }) => tryRef(refs, `${REF_BRANCH_PREFIX}${version}`);
-
-const tryVersionAsDirectRef = ({ version, refs }) => tryRef(refs, `${REF_PREFIX}${version}`);
-
-const computeSemverNames = ({ config, refs }) => {
-  const names = {
-    tags: [],
-    heads: []
-  };
-  for (var _iterator2 = refs.keys(), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-    var _ref3;
-
-    if (_isArray2) {
-      if (_i2 >= _iterator2.length) break;
-      _ref3 = _iterator2[_i2++];
-    } else {
-      _i2 = _iterator2.next();
-      if (_i2.done) break;
-      _ref3 = _i2.value;
-    }
-
-    const ref = _ref3;
-
-    const match = REF_NAME_REGEXP.exec(ref);
-    if (!match) {
-      continue;
-    }
-    const type = match[1],
-          name = match[2];
-
-    if (semver.valid(name, config.looseSemver)) {
-      names[type].push(name);
-    }
-  }
-  return names;
-};
-
-const findSemver = (version, config, namesList) => config.resolveConstraints(namesList, version);
-
-const tryVersionAsTagSemver = (() => {
-  var _ref4 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({ version, config, refs }, names) {
-    const result = yield findSemver(version.replace(/^semver:/, ''), config, names.tags);
-    return result ? tryRef(refs, `${REF_TAG_PREFIX}${result}`) : null;
-  });
-
-  return function tryVersionAsTagSemver(_x, _x2) {
-    return _ref4.apply(this, arguments);
-  };
-})();
-
-const tryVersionAsBranchSemver = (() => {
-  var _ref5 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* ({ version, config, refs }, names) {
-    const result = yield findSemver(version.replace(/^semver:/, ''), config, names.heads);
-    return result ? tryRef(refs, `${REF_BRANCH_PREFIX}${result}`) : null;
-  });
-
-  return function tryVersionAsBranchSemver(_x3, _x4) {
-    return _ref5.apply(this, arguments);
-  };
-})();
-
-const tryVersionAsSemverRange = (() => {
-  var _ref6 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (options) {
-    const names = computeSemverNames(options);
-    return (yield tryVersionAsTagSemver(options, names)) || tryVersionAsBranchSemver(options, names);
-  });
-
-  return function tryVersionAsSemverRange(_x5) {
-    return _ref6.apply(this, arguments);
-  };
-})();
-
-const VERSION_RESOLUTION_STEPS = [tryEmptyVersionAsDefaultBranch, tryVersionAsGitCommit, tryVersionAsFullRef, tryVersionAsTagName, tryVersionAsPullRequestNo, tryVersionAsBranchName, tryVersionAsSemverRange, tryWildcardVersionAsDefaultBranch, tryVersionAsDirectRef];
-
-/**
- * Resolve a git-url hash (version) to a git commit sha and branch/tag ref
- * Returns null if the version cannot be resolved to any commit
- */
-
-const resolveVersion = exports.resolveVersion = (() => {
-  var _ref7 = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (options) {
-    for (var _iterator3 = VERSION_RESOLUTION_STEPS, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-      var _ref8;
-
-      if (_isArray3) {
-        if (_i3 >= _iterator3.length) break;
-        _ref8 = _iterator3[_i3++];
-      } else {
-        _i3 = _iterator3.next();
-        if (_i3.done) break;
-        _ref8 = _i3.value;
-      }
-
-      const testFunction = _ref8;
-
-      const result = yield testFunction(options);
-      if (result !== null) {
-        return result;
-      }
-    }
-    return null;
-  });
-
-  return function resolveVersion(_x6) {
-    return _ref7.apply(this, arguments);
-  };
-})();
-
-/**
- * Parse Git ref lines into hash of ref names to SHA hashes
- */
-
-const parseRefs = exports.parseRefs = stdout => {
-  // store references
-  const refs = new Map();
-
-  // line delimited
-  const refLines = stdout.split('\n');
-
-  for (var _iterator4 = refLines, _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-    var _ref9;
-
-    if (_isArray4) {
-      if (_i4 >= _iterator4.length) break;
-      _ref9 = _iterator4[_i4++];
-    } else {
-      _i4 = _iterator4.next();
-      if (_i4.done) break;
-      _ref9 = _i4.value;
-    }
-
-    const line = _ref9;
-
-    const match = GIT_REF_LINE_REGEXP.exec(line);
-
-    if (match) {
-      const sha = match[1],
-            tagName = match[2];
-
-      // As documented in gitrevisions:
-      //   https://www.kernel.org/pub/software/scm/git/docs/gitrevisions.html#_specifying_revisions
-      // "A suffix ^ followed by an empty brace pair means the object could be a tag,
-      //   and dereference the tag recursively until a non-tag object is found."
-      // In other words, the hash without ^{} is the hash of the tag,
-      //   and the hash with ^{} is the hash of the commit at which the tag was made.
-
-      const name = (0, (_misc || _load_misc()).removeSuffix)(tagName, '^{}');
-
-      refs.set(name, sha);
-    }
-  }
-
-  return refs;
-};
-
-/***/ }),
-/* 582 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.LogicalDependencyTree = undefined;
-
-var _npmLogicalTree;
-
-function _load_npmLogicalTree() {
-  return _npmLogicalTree = _interopRequireDefault(__webpack_require__(766));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-class LogicalDependencyTree {
-  constructor(packageJson, packageLock) {
-    this.tree = (0, (_npmLogicalTree || _load_npmLogicalTree()).default)(JSON.parse(packageJson), JSON.parse(packageLock));
-  }
-
-  _findNode(name, parentNames) {
-    const parentTree = parentNames ? parentNames.reduce((node, ancestor) => {
-      const ancestorNode = node.dependencies.get(ancestor);
-      return ancestorNode;
-    }, this.tree) : this.tree;
-    const node = parentTree.dependencies.get(name);
-    return node;
-  }
-  getFixedVersionPattern(name, parentNames) {
-    const node = this._findNode(name, parentNames);
-    const version = node.version;
-    return `${node.name}@${version}`;
-  }
-}
-exports.LogicalDependencyTree = LogicalDependencyTree;
-
-/***/ }),
-/* 583 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _util;
-
-function _load_util() {
-  return _util = __webpack_require__(221);
-}
-
-var _index;
-
-function _load_index() {
-  return _index = __webpack_require__(78);
-}
-
-var _inferLicense;
-
-function _load_inferLicense() {
-  return _inferLicense = _interopRequireDefault(__webpack_require__(584));
-}
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const semver = __webpack_require__(22);
-const path = __webpack_require__(0);
-const url = __webpack_require__(24);
-
-const VALID_BIN_KEYS = /^[a-z0-9_-]+$/i;
-
-const LICENSE_RENAMES = {
-  'MIT/X11': 'MIT',
-  X11: 'MIT'
-};
-
-exports.default = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (info, moduleLoc, reporter, warn, looseSemver) {
-    const files = yield (_fs || _load_fs()).readdir(moduleLoc);
-
-    // clean info.version
-    if (typeof info.version === 'string') {
-      info.version = semver.clean(info.version, looseSemver) || info.version;
-    }
-
-    // if name or version aren't set then set them to empty strings
-    info.name = info.name || '';
-    info.version = info.version || '';
-
-    // if the man field is a string then coerce it to an array
-    if (typeof info.man === 'string') {
-      info.man = [info.man];
-    }
-
-    // if the keywords field is a string then split it on any whitespace
-    if (typeof info.keywords === 'string') {
-      info.keywords = info.keywords.split(/\s+/g);
-    }
-
-    // if there's no contributors field but an authors field then expand it
-    if (!info.contributors && files.indexOf('AUTHORS') >= 0) {
-      const authorsFilepath = path.join(moduleLoc, 'AUTHORS');
-      const authorsFilestats = yield (_fs || _load_fs()).stat(authorsFilepath);
-      if (authorsFilestats.isFile()) {
-        let authors = yield (_fs || _load_fs()).readFile(authorsFilepath);
-        authors = authors.split(/\r?\n/g) // split on lines
-        .map(function (line) {
-          return line.replace(/^\s*#.*$/, '').trim();
-        }) // remove comments
-        .filter(function (line) {
-          return !!line;
-        }); // remove empty lines
-        info.contributors = authors;
-      }
-    }
-
-    // expand people fields to objects
-    if (typeof info.author === 'string' || typeof info.author === 'object') {
-      info.author = (0, (_util || _load_util()).normalizePerson)(info.author);
-    }
-    if (Array.isArray(info.contributors)) {
-      info.contributors = info.contributors.map((_util || _load_util()).normalizePerson);
-    }
-    if (Array.isArray(info.maintainers)) {
-      info.maintainers = info.maintainers.map((_util || _load_util()).normalizePerson);
-    }
-
-    // if there's no readme field then load the README file from the cwd
-    if (!info.readme) {
-      const readmeCandidates = files.filter(function (filename) {
-        const lower = filename.toLowerCase();
-        return lower === 'readme' || lower.indexOf('readme.') === 0;
-      }).sort(function (filename1, filename2) {
-        // favor files with extensions
-        return filename2.indexOf('.') - filename1.indexOf('.');
-      });
-
-      for (var _iterator = readmeCandidates, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-        var _ref2;
-
-        if (_isArray) {
-          if (_i >= _iterator.length) break;
-          _ref2 = _iterator[_i++];
-        } else {
-          _i = _iterator.next();
-          if (_i.done) break;
-          _ref2 = _i.value;
-        }
-
-        const readmeFilename = _ref2;
-
-        const readmeFilepath = path.join(moduleLoc, readmeFilename);
-        const readmeFileStats = yield (_fs || _load_fs()).stat(readmeFilepath);
-        if (readmeFileStats.isFile()) {
-          info.readmeFilename = readmeFilename;
-          info.readme = yield (_fs || _load_fs()).readFile(readmeFilepath);
-          break;
-        }
-      }
-    }
-
-    // if there's no description then take the first paragraph from the readme
-    if (!info.description && info.readme) {
-      const desc = (0, (_util || _load_util()).extractDescription)(info.readme);
-      if (desc) {
-        info.description = desc;
-      }
-    }
-
-    // support array of engine keys
-    if (Array.isArray(info.engines)) {
-      const engines = {};
-      for (var _iterator2 = info.engines, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-        var _ref3;
-
-        if (_isArray2) {
-          if (_i2 >= _iterator2.length) break;
-          _ref3 = _iterator2[_i2++];
-        } else {
-          _i2 = _iterator2.next();
-          if (_i2.done) break;
-          _ref3 = _i2.value;
-        }
-
-        const str = _ref3;
-
-        if (typeof str === 'string') {
-          var _str$trim$split = str.trim().split(/ +/g);
-
-          const name = _str$trim$split[0],
-                patternParts = _str$trim$split.slice(1);
-
-          engines[name] = patternParts.join(' ');
-        }
-      }
-      info.engines = engines;
-    }
-
-    // if the repository field is a string then assume it's a git repo and expand it
-    if (typeof info.repository === 'string') {
-      info.repository = {
-        type: 'git',
-        url: info.repository
-      };
-    }
-
-    const repo = info.repository;
-
-    // explode info.repository.url if it's a hosted git shorthand
-    if (repo && typeof repo === 'object' && typeof repo.url === 'string') {
-      repo.url = (0, (_index || _load_index()).hostedGitFragmentToGitUrl)(repo.url, reporter);
-    }
-
-    // allow bugs to be specified as a string, expand it to an object with a single url prop
-    if (typeof info.bugs === 'string') {
-      info.bugs = { url: info.bugs };
-    }
-
-    // normalize homepage url to http
-    if (typeof info.homepage === 'string') {
-      const parts = url.parse(info.homepage);
-      parts.protocol = parts.protocol || 'http:';
-      if (parts.pathname && !parts.hostname) {
-        parts.hostname = parts.pathname;
-        parts.pathname = '';
-      }
-      info.homepage = url.format(parts);
-    }
-
-    // if the `bin` field is as string then expand it to an object with a single property
-    // based on the original `bin` field and `name field`
-    // { name: "foo", bin: "cli.js" } -> { name: "foo", bin: { foo: "cli.js" } }
-    if (typeof info.name === 'string' && typeof info.bin === 'string' && info.bin.length > 0) {
-      // Remove scoped package name for consistency with NPM's bin field fixing behaviour
-      const name = info.name.replace(/^@[^\/]+\//, '');
-      info.bin = { [name]: info.bin };
-    }
-
-    // Validate that the bin entries reference only files within their package, and that
-    // their name is a valid file name
-    if (typeof info.bin === 'object' && info.bin !== null) {
-      const bin = info.bin;
-      for (var _iterator3 = Object.keys(bin), _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
-        var _ref4;
-
-        if (_isArray3) {
-          if (_i3 >= _iterator3.length) break;
-          _ref4 = _iterator3[_i3++];
-        } else {
-          _i3 = _iterator3.next();
-          if (_i3.done) break;
-          _ref4 = _i3.value;
-        }
-
-        const key = _ref4;
-
-        const target = bin[key];
-        if (!VALID_BIN_KEYS.test(key) || !(0, (_util || _load_util()).isValidBin)(target)) {
-          delete bin[key];
-          warn(reporter.lang('invalidBinEntry', info.name, key));
-        } else {
-          bin[key] = path.normalize(target);
-        }
-      }
-    } else if (typeof info.bin !== 'undefined') {
-      delete info.bin;
-      warn(reporter.lang('invalidBinField', info.name));
-    }
-
-    // bundleDependencies is an alias for bundledDependencies
-    if (info.bundledDependencies) {
-      info.bundleDependencies = info.bundledDependencies;
-      delete info.bundledDependencies;
-    }
-
-    let scripts;
-
-    // dummy script object to shove file inferred scripts onto
-    if (info.scripts && typeof info.scripts === 'object') {
-      scripts = info.scripts;
-    } else {
-      scripts = {};
-    }
-
-    // if there's a server.js file and no start script then set it to `node server.js`
-    if (!scripts.start && files.indexOf('server.js') >= 0) {
-      scripts.start = 'node server.js';
-    }
-
-    // if there's a binding.gyp file and no install script then set it to `node-gyp rebuild`
-    if (!scripts.install && files.indexOf('binding.gyp') >= 0) {
-      scripts.install = 'node-gyp rebuild';
-    }
-
-    // set scripts if we've polluted the empty object
-    if (Object.keys(scripts).length) {
-      info.scripts = scripts;
-    }
-
-    const dirs = info.directories;
-
-    if (dirs && typeof dirs === 'object') {
-      const binDir = dirs.bin;
-
-      if (!info.bin && binDir && typeof binDir === 'string') {
-        const bin = info.bin = {};
-        const fullBinDir = path.join(moduleLoc, binDir);
-
-        if (yield (_fs || _load_fs()).exists(fullBinDir)) {
-          for (var _iterator4 = yield (_fs || _load_fs()).readdir(fullBinDir), _isArray4 = Array.isArray(_iterator4), _i4 = 0, _iterator4 = _isArray4 ? _iterator4 : _iterator4[Symbol.iterator]();;) {
-            var _ref5;
-
-            if (_isArray4) {
-              if (_i4 >= _iterator4.length) break;
-              _ref5 = _iterator4[_i4++];
-            } else {
-              _i4 = _iterator4.next();
-              if (_i4.done) break;
-              _ref5 = _i4.value;
-            }
-
-            const scriptName = _ref5;
-
-            if (scriptName[0] === '.') {
-              continue;
-            }
-            bin[scriptName] = path.join('.', binDir, scriptName);
-          }
-        } else {
-          warn(reporter.lang('manifestDirectoryNotFound', binDir, info.name));
-        }
-      }
-
-      const manDir = dirs.man;
-
-      if (!info.man && typeof manDir === 'string') {
-        const man = info.man = [];
-        const fullManDir = path.join(moduleLoc, manDir);
-
-        if (yield (_fs || _load_fs()).exists(fullManDir)) {
-          for (var _iterator5 = yield (_fs || _load_fs()).readdir(fullManDir), _isArray5 = Array.isArray(_iterator5), _i5 = 0, _iterator5 = _isArray5 ? _iterator5 : _iterator5[Symbol.iterator]();;) {
-            var _ref6;
-
-            if (_isArray5) {
-              if (_i5 >= _iterator5.length) break;
-              _ref6 = _iterator5[_i5++];
-            } else {
-              _i5 = _iterator5.next();
-              if (_i5.done) break;
-              _ref6 = _i5.value;
-            }
-
-            const filename = _ref6;
-
-            if (/^(.*?)\.[0-9]$/.test(filename)) {
-              man.push(path.join('.', manDir, filename));
-            }
-          }
-        } else {
-          warn(reporter.lang('manifestDirectoryNotFound', manDir, info.name));
-        }
-      }
-    }
-
-    delete info.directories;
-
-    // normalize licenses field
-    const licenses = info.licenses;
-    if (Array.isArray(licenses) && !info.license) {
-      let licenseTypes = [];
-
-      for (var _iterator6 = licenses, _isArray6 = Array.isArray(_iterator6), _i6 = 0, _iterator6 = _isArray6 ? _iterator6 : _iterator6[Symbol.iterator]();;) {
-        var _ref7;
-
-        if (_isArray6) {
-          if (_i6 >= _iterator6.length) break;
-          _ref7 = _iterator6[_i6++];
-        } else {
-          _i6 = _iterator6.next();
-          if (_i6.done) break;
-          _ref7 = _i6.value;
-        }
-
-        let license = _ref7;
-
-        if (license && typeof license === 'object') {
-          license = license.type;
-        }
-        if (typeof license === 'string') {
-          licenseTypes.push(license);
-        }
-      }
-
-      licenseTypes = licenseTypes.filter((_util || _load_util()).isValidLicense);
-
-      if (licenseTypes.length === 1) {
-        info.license = licenseTypes[0];
-      } else if (licenseTypes.length) {
-        info.license = `(${licenseTypes.join(' OR ')})`;
-      }
-    }
-
-    const license = info.license;
-
-    // normalize license
-    if (license && typeof license === 'object') {
-      info.license = license.type;
-    }
-
-    // get license file
-    const licenseFile = files.find(function (filename) {
-      const lower = filename.toLowerCase();
-      return lower === 'license' || lower.startsWith('license.') || lower === 'unlicense' || lower.startsWith('unlicense.');
-    });
-    if (licenseFile) {
-      const licenseFilepath = path.join(moduleLoc, licenseFile);
-      const licenseFileStats = yield (_fs || _load_fs()).stat(licenseFilepath);
-      if (licenseFileStats.isFile()) {
-        const licenseContent = yield (_fs || _load_fs()).readFile(licenseFilepath);
-        const inferredLicense = (0, (_inferLicense || _load_inferLicense()).default)(licenseContent);
-        info.licenseText = licenseContent;
-
-        const license = info.license;
-
-        if (typeof license === 'string') {
-          if (inferredLicense && (0, (_util || _load_util()).isValidLicense)(inferredLicense) && !(0, (_util || _load_util()).isValidLicense)(license)) {
-            // some packages don't specify their license version but we can infer it based on their license file
-            const basicLicense = license.toLowerCase().replace(/(-like|\*)$/g, '');
-            const expandedLicense = inferredLicense.toLowerCase();
-            if (expandedLicense.startsWith(basicLicense)) {
-              // TODO consider doing something to notify the user
-              info.license = inferredLicense;
-            }
-          }
-        } else if (inferredLicense) {
-          // if there's no license then infer it based on the license file
-          info.license = inferredLicense;
-        } else {
-          // valid expression to refer to a license in a file
-          info.license = `SEE LICENSE IN ${licenseFile}`;
-        }
-      }
-    }
-
-    if (typeof info.license === 'string') {
-      // sometimes licenses are known by different names, reduce them
-      info.license = LICENSE_RENAMES[info.license] || info.license;
-    } else if (typeof info.readme === 'string') {
-      // the license might be at the bottom of the README
-      const inferredLicense = (0, (_inferLicense || _load_inferLicense()).default)(info.readme);
-      if (inferredLicense) {
-        info.license = inferredLicense;
-      }
-    }
-
-    // get notice file
-    const noticeFile = files.find(function (filename) {
-      const lower = filename.toLowerCase();
-      return lower === 'notice' || lower.startsWith('notice.');
-    });
-    if (noticeFile) {
-      const noticeFilepath = path.join(moduleLoc, noticeFile);
-      const noticeFileStats = yield (_fs || _load_fs()).stat(noticeFilepath);
-      if (noticeFileStats.isFile()) {
-        info.noticeText = yield (_fs || _load_fs()).readFile(noticeFilepath);
-      }
-    }
-
-    for (var _iterator7 = (_constants || _load_constants()).MANIFEST_FIELDS, _isArray7 = Array.isArray(_iterator7), _i7 = 0, _iterator7 = _isArray7 ? _iterator7 : _iterator7[Symbol.iterator]();;) {
-      var _ref8;
-
-      if (_isArray7) {
-        if (_i7 >= _iterator7.length) break;
-        _ref8 = _iterator7[_i7++];
-      } else {
-        _i7 = _iterator7.next();
-        if (_i7.done) break;
-        _ref8 = _i7.value;
-      }
-
-      const dependencyType = _ref8;
-
-      const dependencyList = info[dependencyType];
-      if (dependencyList && typeof dependencyList === 'object') {
-        delete dependencyList['//'];
-        for (const name in dependencyList) {
-          dependencyList[name] = dependencyList[name] || '';
-        }
-      }
-    }
-  });
-
-  return function (_x, _x2, _x3, _x4, _x5) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-/***/ }),
-/* 584 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = inferLicense;
-
-var _licenses;
-
-function _load_licenses() {
-  return _licenses = _interopRequireDefault(__webpack_require__(585));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function clean(str) {
-  return str.replace(/[^A-Za-z\s]/g, ' ').replace(/[\s]+/g, ' ').trim().toLowerCase();
-}
-
-const REGEXES = {
-  Apache: [/Apache License\b/],
-  BSD: [/BSD\b/],
-  ISC: [/The ISC License/, /ISC\b/],
-  MIT: [/MIT\b/],
-  Unlicense: [/http:\/\/unlicense.org\//],
-  WTFPL: [/DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE/, /WTFPL\b/]
-};
-
-function inferLicense(license) {
-  // check if we have any explicit licenses
-  const cleanLicense = clean(license);
-  for (const licenseName in (_licenses || _load_licenses()).default) {
-    const testLicense = (_licenses || _load_licenses()).default[licenseName];
-    if (cleanLicense.search(testLicense) >= 0) {
-      return licenseName;
-    }
-  }
-
-  // infer based on some keywords
-  for (const licenseName in REGEXES) {
-    for (var _iterator = REGEXES[licenseName], _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-      var _ref;
-
-      if (_isArray) {
-        if (_i >= _iterator.length) break;
-        _ref = _iterator[_i++];
-      } else {
-        _i = _iterator.next();
-        if (_i.done) break;
-        _ref = _i.value;
-      }
-
-      const regex = _ref;
-
-      if (license.search(regex) >= 0) {
-        return `${licenseName}*`;
-      }
-    }
-  }
-
-  return null;
-}
-
-/***/ }),
-/* 585 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-
-/* eslint-disable max-len */
-
-/**
- * DO NOT EDIT THIS FILE MANUALLY.
- * THIS FILE WAS GENERATED BY "generate-licenses-js.js".
- */
-
-exports.default = {
-  'Apache-2.0': new RegExp('(licensed under the apache license version the license you may not use this file except in compliance with the license you may obtain a copy of the license at http www apache org licenses license unless required by applicable law or agreed to in writing software distributed under the license is distributed on an as is basis without warranties or conditions of any kind either express or implied see the license for the specific language governing permissions and limitations under the license$|apache license version january http www apache org licenses terms and conditions for use reproduction and distribution definitions license shall mean the terms and conditions for use reproduction and distribution as defined by sections through of this document licensor shall mean the copyright owner or entity authorized by the copyright owner that is granting the license legal entity shall mean the union of the acting entity and all other entities that control are controlled by or are under common control with that entity for the purposes of this definition control means i the power direct or indirect to cause the direction or management of such entity whether by contract or otherwise or ii ownership of fifty percent or more of the outstanding shares or iii beneficial ownership of such entity you or your shall mean an individual or legal entity exercising permissions granted by this license source form shall mean the preferred form for making modifications including but not limited to software source code documentation source and configuration files object form shall mean any form resulting from mechanical transformation or translation of a source form including but not limited to compiled object code generated documentation and conversions to other media types work shall mean the work of authorship whether in source or object form made available under the license as indicated by a copyright notice that is included in or attached to the work an example is provided in the appendix below derivative works shall mean any work whether in source or object form that is based on or derived from the work and for which the editorial revisions annotations elaborations or other modifications represent as a whole an original work of authorship for the purposes of this license derivative works shall not include works that remain separable from or merely link or bind by name to the interfaces of the work and derivative works thereof contribution shall mean any work of authorship including the original version of the work and any modifications or additions to that work or derivative works thereof that is intentionally submitted to licensor for inclusion in the work by the copyright owner or by an individual or legal entity authorized to submit on behalf of the copyright owner for the purposes of this definition submitted means any form of electronic verbal or written communication sent to the licensor or its representatives including but not limited to communication on electronic mailing lists source code control systems and issue tracking systems that are managed by or on behalf of the licensor for the purpose of discussing and improving the work but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as not a contribution contributor shall mean licensor and any individual or legal entity on behalf of whom a contribution has been received by licensor and subsequently incorporated within the work grant of copyright license subject to the terms and conditions of this license each contributor hereby grants to you a perpetual worldwide non exclusive no charge royalty free irrevocable copyright license to reproduce prepare derivative works of publicly display publicly perform sublicense and distribute the work and such derivative works in source or object form grant of patent license subject to the terms and conditions of this license each contributor hereby grants to you a perpetual worldwide non exclusive no charge royalty free irrevocable except as stated in this section patent license to make have made use offer to sell sell import and otherwise transfer the work where such license applies only to those patent claims licensable by such contributor that are necessarily infringed by their contribution s alone or by combination of their contribution s with the work to which such contribution s was submitted if you institute patent litigation against any entity including a cross claim or counterclaim in a lawsuit alleging that the work or a contribution incorporated within the work constitutes direct or contributory patent infringement then any patent licenses granted to you under this license for that work shall terminate as of the date such litigation is filed redistribution you may reproduce and distribute copies of the work or derivative works thereof in any medium with or without modifications and in source or object form provided that you meet the following conditions a you must give any other recipients of the work or derivative works a copy of this license and b you must cause any modified files to carry prominent notices stating that you changed the files and c you must retain in the source form of any derivative works that you distribute all copyright patent trademark and attribution notices from the source form of the work excluding those notices that do not pertain to any part of the derivative works and d if the work includes a notice text file as part of its distribution then any derivative works that you distribute must include a readable copy of the attribution notices contained within such notice file excluding those notices that do not pertain to any part of the derivative works in at least one of the following places within a notice text file distributed as part of the derivative works within the source form or documentation if provided along with the derivative works or within a display generated by the derivative works if and wherever such third party notices normally appear the contents of the notice file are for informational purposes only and do not modify the license you may add your own attribution notices within derivative works that you distribute alongside or as an addendum to the notice text from the work provided that such additional attribution notices cannot be construed as modifying the license you may add your own copyright statement to your modifications and may provide additional or different license terms and conditions for use reproduction or distribution of your modifications or for any such derivative works as a whole provided your use reproduction and distribution of the work otherwise complies with the conditions stated in this license submission of contributions unless you explicitly state otherwise any contribution intentionally submitted for inclusion in the work by you to the licensor shall be under the terms and conditions of this license without any additional terms or conditions notwithstanding the above nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with licensor regarding such contributions trademarks this license does not grant permission to use the trade names trademarks service marks or product names of the licensor except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the notice file disclaimer of warranty unless required by applicable law or agreed to in writing licensor provides the work and each contributor provides its contributions on an as is basis without warranties or conditions of any kind either express or implied including without limitation any warranties or conditions of title non infringement merchantability or fitness for a particular purpose you are solely responsible for determining the appropriateness of using or redistributing the work and assume any risks associated with your exercise of permissions under this license limitation of liability in no event and under no legal theory whether in tort including negligence contract or otherwise unless required by applicable law such as deliberate and grossly negligent acts or agreed to in writing shall any contributor be liable to you for damages including any direct indirect special incidental or consequential damages of any character arising as a result of this license or out of the use or inability to use the work including but not limited to damages for loss of goodwill work stoppage computer failure or malfunction or any and all other commercial damages or losses even if such contributor has been advised of the possibility of such damages accepting warranty or additional liability while redistributing the work or derivative works thereof you may choose to offer and charge a fee for acceptance of support warranty indemnity or other liability obligations and or rights consistent with this license however in accepting such obligations you may act only on your own behalf and on your sole responsibility not on behalf of any other contributor and only if you agree to indemnify defend and hold each contributor harmless for any liability incurred by or claims asserted against such contributor by reason of your accepting any such warranty or additional liability end of terms and conditions$)', 'g'),
-  'BSD-2-Clause': new RegExp('(redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution this(.*?| )is provided by the copyright holders and contributors as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed in no event shall(.*?| )be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of the use of this(.*?| )even if advised of the possibility of such damage$|redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution this software is provided by the copyright holders and contributors as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed in no event shall(.*?| )be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of the use of this software even if advised of the possibility of such damage$)', 'g'),
-  'BSD-3-Clause': new RegExp('(redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution neither the name of(.*?| )nor the names of the contributors may be used to endorse or promote products derived from this software without specific prior written permission this software is provided by the copyright holders and contributors as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed in no event shall(.*?| )be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of the use of this software even if advised of the possibility of such damage$|(redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution the names of any contributors may not be used to endorse or promote products derived from this software without specific prior written permission this software is provided by the copyright holders and contributors as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed in no event shall the copyright holders and contributors be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of the use of this software even if advised of the possibility of such damage$|redistribution and use in source and binary forms with or without modification are permitted provided that the following conditions are met redistributions of source code must retain the above copyright notice this list of conditions and the following disclaimer redistributions in binary form must reproduce the above copyright notice this list of conditions and the following disclaimer in the documentation and or other materials provided with the distribution neither the name(.*?| )nor the names of(.*?| )contributors may be used to endorse or promote products derived from this software without specific prior written permission this software is provided by(.*?| )as is and any express or implied warranties including but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed in no event shall(.*?| )be liable for any direct indirect incidental special exemplary or consequential damages including but not limited to procurement of substitute goods or services loss of use data or profits or business interruption however caused and on any theory of liability whether in contract strict liability or tort including negligence or otherwise arising in any way out of the use of this software even if advised of the possibility of such damage$))', 'g'),
-  MIT: new RegExp('permission is hereby granted free of charge to any person obtaining a copy of this software and associated documentation files the software to deal in the software without restriction including without limitation the rights to use copy modify merge publish distribute sublicense and or sell copies of the software and to permit persons to whom the software is furnished to do so subject to the following conditions the above copyright notice and this permission notice shall be included in all copies or substantial portions of the software the software is provided as is without warranty of any kind express or implied including but not limited to the warranties of merchantability fitness for a particular purpose and noninfringement in no event shall the authors or copyright holders be liable for any claim damages or other liability whether in an action of contract tort or otherwise arising from out of or in connection with the software or the use or other dealings in the software$', 'g'),
-  Unlicense: new RegExp('this is free and unencumbered software released into the public domain anyone is free to copy modify publish use compile sell or distribute this software either in source code form or as a compiled binary for any purpose commercial or non commercial and by any means in jurisdictions that recognize copyright laws the author or authors of this software dedicate any and all copyright interest in the software to the public domain we make this dedication for the benefit of the public at large and to the detriment of our heirs and successors we intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law the software is provided as is without warranty of any kind express or implied including but not limited to the warranties of merchantability fitness for a particular purpose and noninfringement in no event shall the authors be liable for any claim damages or other liability whether in an action of contract tort or otherwise arising from out of or in connection with the software or the use or other dealings in the software for more information please refer to wildcard$', 'g')
-};
-
-/***/ }),
-/* 586 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-exports.default = function (info, moduleLoc, lockfileFolder) {
-  // It won't work if we don't yet know what's the folder we'll use as root. It's not a
-  // big deal tho, because it only happens when trying to figure out the root, and we
-  // don't need to know the dependencies / devDependencies at this time.
-  if (!lockfileFolder) {
-    return;
-  }
-
-  for (var _iterator = (_constants || _load_constants()).DEPENDENCY_TYPES, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
-    var _ref;
-
-    if (_isArray) {
-      if (_i >= _iterator.length) break;
-      _ref = _iterator[_i++];
-    } else {
-      _i = _iterator.next();
-      if (_i.done) break;
-      _ref = _i.value;
-    }
-
-    const dependencyType = _ref;
-
-    const dependencies = info[dependencyType];
-    if (!dependencies) {
-      continue;
-    }
-
-    for (var _iterator2 = Object.keys(dependencies), _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
-      var _ref2;
-
-      if (_isArray2) {
-        if (_i2 >= _iterator2.length) break;
-        _ref2 = _iterator2[_i2++];
-      } else {
-        _i2 = _iterator2.next();
-        if (_i2.done) break;
-        _ref2 = _i2.value;
-      }
-
-      const name = _ref2;
-
-      let value = dependencies[name];
-
-      if (path.isAbsolute(value)) {
-        value = (_fileResolver || _load_fileResolver()).FILE_PROTOCOL_PREFIX + value;
-      }
-
-      let prefix;
-      if (value.startsWith((_fileResolver || _load_fileResolver()).FILE_PROTOCOL_PREFIX)) {
-        prefix = (_fileResolver || _load_fileResolver()).FILE_PROTOCOL_PREFIX;
-      } else if (value.startsWith((_linkResolver || _load_linkResolver()).LINK_PROTOCOL_PREFIX)) {
-        prefix = (_linkResolver || _load_linkResolver()).LINK_PROTOCOL_PREFIX;
-      } else {
-        continue;
-      }
-      (0, (_invariant || _load_invariant()).default)(prefix, 'prefix is definitely defined here');
-
-      const unprefixed = value.substr(prefix.length);
-      const hasPathPrefix = /^\.(\/|$)/.test(unprefixed);
-
-      const absoluteTarget = path.resolve(lockfileFolder, moduleLoc, unprefixed);
-      let relativeTarget = path.relative(lockfileFolder, absoluteTarget) || '.';
-
-      if (absoluteTarget === lockfileFolder) {
-        relativeTarget = '.';
-      } else if (hasPathPrefix) {
-        // TODO: This logic should be removed during the next major bump
-        // If the original value was using the "./" prefix, then we output a similar path.
-        // We need to do this because otherwise it would cause problems with already existing
-        // lockfile, which would see some of their entries being unrecognized.
-        relativeTarget = relativeTarget.replace(/^(?!\.{0,2}\/)/, `./`);
-      }
-
-      dependencies[name] = prefix + relativeTarget.replace(/\\/g, '/');
-    }
-  }
-};
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-var _fileResolver;
-
-function _load_fileResolver() {
-  return _fileResolver = __webpack_require__(215);
-}
-
-var _linkResolver;
-
-function _load_linkResolver() {
-  return _linkResolver = __webpack_require__(368);
-}
-
-var _invariant;
-
-function _load_invariant() {
-  return _invariant = _interopRequireDefault(__webpack_require__(9));
-}
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-/***/ }),
-/* 587 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = {
-  autohr: 'author',
-  autor: 'author',
-  contributers: 'contributors',
-  depdenencies: 'dependencies',
-  dependancies: 'dependencies',
-  dependecies: 'dependencies',
-  depends: 'dependencies',
-  'dev-dependencies': 'devDependencies',
-  devDependences: 'devDependencies',
-  devDepenencies: 'devDependencies',
-  devEependencies: 'devDependencies',
-  devdependencies: 'devDependencies',
-  hampage: 'homepage',
-  hompage: 'homepage',
-  prefereGlobal: 'preferGlobal',
-  publicationConfig: 'publishConfig',
-  repo: 'repository',
-  repostitory: 'repository',
-  script: 'scripts'
-};
-
-/***/ }),
-/* 588 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.default = parsePackageName;
-
-
-const PKG_INPUT = /(^\S?[^\s@]+)(?:@(\S+))?$/;
-
-function parsePackageName(input) {
-  var _PKG_INPUT$exec = PKG_INPUT.exec(input);
-
-  const name = _PKG_INPUT$exec[1],
-        version = _PKG_INPUT$exec[2];
-
-  return { name, version };
-}
-
-/***/ }),
-/* 589 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _asyncToGenerator2;
-
-function _load_asyncToGenerator() {
-  return _asyncToGenerator2 = _interopRequireDefault(__webpack_require__(2));
-}
-
-let makePortableProxyScriptUnix = (() => {
-  var _ref = (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* (source, destination, options) {
-    const environment = options.extraEnvironment ? Array.from(options.extraEnvironment.entries()).map(function ([key, value]) {
-      return `${key}="${value}"`;
-    }).join(' ') + ' ' : '';
-
-    const prependedArguments = options.prependArguments ? ' ' + options.prependArguments.map(function (arg) {
-      return `"${arg}"`;
-    }).join(' ') : '';
-    const appendedArguments = options.appendArguments ? ' ' + options.appendArguments.map(function (arg) {
-      return `"${arg}"`;
-    }).join(' ') : '';
-
-    const filePath = `${destination}/${options.proxyBasename || path.basename(source)}`;
-
-    // Unless impossible we want to preserve any symlinks used to call us when forwarding the call to the binary (so we
-    // cannot use realpath or transform relative paths into absolute ones), but we also need to tell the sh interpreter
-    // that the symlink should be resolved relative to the script directory (hence dirname "$0" at runtime).
-    const sourcePath = path.isAbsolute(source) ? source : `$(dirname "$0")/../${source}`;
-
-    yield (_fs || _load_fs()).mkdirp(destination);
-
-    if (process.platform === 'win32') {
-      yield (_fs || _load_fs()).writeFile(filePath + '.cmd', `@${environment}"${sourcePath}" ${prependedArguments} ${appendedArguments} %*\r\n`);
-    } else {
-      yield (_fs || _load_fs()).writeFile(filePath, `#!/bin/sh\n\n${environment}exec "${sourcePath}"${prependedArguments} "$@"${appendedArguments}\n`);
-      yield (_fs || _load_fs()).chmod(filePath, 0o755);
-    }
-  });
-
-  return function makePortableProxyScriptUnix(_x, _x2, _x3) {
-    return _ref.apply(this, arguments);
-  };
-})();
-
-exports.makePortableProxyScript = makePortableProxyScript;
-
-var _fs;
-
-function _load_fs() {
-  return _fs = _interopRequireWildcard(__webpack_require__(4));
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-const path = __webpack_require__(0);
-
-function makePortableProxyScript(source, destination,
-// $FlowFixMe Flow doesn't support exact types with empty default values
-options = {}) {
-  return makePortableProxyScriptUnix(source, destination, options);
-}
-
-/***/ }),
-/* 590 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.findRc = findRc;
-
-var _fs;
-
-function _load_fs() {
-  return _fs = __webpack_require__(5);
-}
-
-var _path;
-
-function _load_path() {
-  return _path = _interopRequireWildcard(__webpack_require__(0));
-}
-
-var _constants;
-
-function _load_constants() {
-  return _constants = __webpack_require__(8);
-}
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-const etc = '/etc';
-
-const isWin = process.platform === 'win32';
-const home = isWin ? process.env.USERPROFILE : process.env.HOME;
-
-function getRcPaths(name, cwd) {
-  const configPaths = [];
-
-  function pushConfigPath(...segments) {
-    configPaths.push((_path || _load_path()).join(...segments));
-    if (segments[segments.length - 1] === `.${name}rc`) {
-      configPaths.push((_path || _load_path()).join(...segments.slice(0, -1), `.${name}rc.yml`));
-    }
-  }
-
-  function unshiftConfigPath(...segments) {
-    if (segments[segments.length - 1] === `.${name}rc`) {
-      configPaths.unshift((_path || _load_path()).join(...segments.slice(0, -1), `.${name}rc.yml`));
-    }
-    configPaths.unshift((_path || _load_path()).join(...segments));
-  }
-
-  if (!isWin) {
-    pushConfigPath(etc, name, 'config');
-    pushConfigPath(etc, `${name}rc`);
-  }
-
-  if (home) {
-    pushConfigPath((_constants || _load_constants()).CONFIG_DIRECTORY);
-    pushConfigPath(home, '.config', name, 'config');
-    pushConfigPath(home, '.config', name);
-    pushConfigPath(home, `.${name}`, 'config');
-    pushConfigPath(home, `.${name}rc`);
-  }
-
-  // add .yarnrc locations relative to the cwd
-  while (true) {
-    unshiftConfigPath(cwd, `.${name}rc`);
-
-    const upperCwd = (_path || _load_path()).dirname(cwd);
-    if (upperCwd === cwd) {
-      // we've reached the root
-      break;
-    } else {
-      // continue since there's still more directories to search
-      cwd = upperCwd;
-    }
-  }
-
-  const envVariable = `${name}_config`.toUpperCase();
-
-  if (process.env[envVariable]) {
-    pushConfigPath(process.env[envVariable]);
-  }
-
-  return configPaths;
-}
-
-function parseRcPaths(paths, parser) {
-  return Object.assign({}, ...paths.map(path => {
-    try {
-      return parser((0, (_fs || _load_fs()).readFileSync)(path).toString(), path);
-    } catch (error) {
-      return {};
-    }
-  }));
-}
-
-function findRc(name, cwd, parser) {
-  return parseRcPaths(getRcPaths(name, cwd), parser);
-}
-
-/***/ }),
-/* 591 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = { "default": __webpack_require__(623), __esModule: true };
-
-/***/ }),
-/* 592 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var DuplexStream = __webpack_require__(791)
-  , util         = __webpack_require__(3)
-  , Buffer       = __webpack_require__(45).Buffer
-
-
-function BufferList (callback) {
-  if (!(this instanceof BufferList))
-    return new BufferList(callback)
-
-  this._bufs  = []
-  this.length = 0
-
-  if (typeof callback == 'function') {
-    this._callback = callback
-
-    var piper = function piper (err) {
-      if (this._callback) {
-        this._callback(err)
-        this._callback = null
-      }
-    }.bind(this)
-
-    this.on('pipe', function onPipe (src) {
-      src.on('error', piper)
-    })
-    this.on('unpipe', function onUnpipe (src) {
-      src.removeListener('error', piper)
-    })
-  } else {
-    this.append(callback)
-  }
-
-  DuplexStream.call(this)
-}
-
-
-util.inherits(BufferList, DuplexStream)
-
-
-BufferList.prototype._offset = function _offset (offset) {
-  var tot = 0, i = 0, _t
-  if (offset === 0) return [ 0, 0 ]
-  for (; i < this._bufs.length; i++) {
-    _t = tot + this._bufs[i].length
-    if (offset < _t || i == this._bufs.length - 1)
-      return [ i, offset - tot ]
-    tot = _t
-  }
-}
-
-
-BufferList.prototype.append = function append (buf) {
-  var i = 0
-
-  if (Buffer.isBuffer(buf)) {
-    this._appendBuffer(buf);
-  } else if (Array.isArray(buf)) {
-    for (; i < buf.length; i++)
-      this.append(buf[i])
-  } else if (buf instanceof BufferList) {
-    // unwrap argument into individual BufferLists
-    for (; i < buf._bufs.length; i++)
-      this.append(buf._bufs[i])
-  } else if (buf != null) {
-    // coerce number arguments to strings, since Buffer(number) does
-    // uninitialized memory allocation
-    if (typeof buf == 'number')
-      buf = buf.toString()
-
-    this._appendBuffer(Buffer.from(buf));
-  }
-
-  return this
-}
-
-
-BufferList.prototype._appendBuffer = function appendBuffer (buf) {
-  this._bufs.push(buf)
-  this.length += buf.length
-}
-
-
-BufferList.prototype._write = function _write (buf, encoding, callback) {
-  this._appendBuffer(buf)
-
-  if (typeof callback == 'function')
-    callback()
-}
-
-
-BufferList.prototype._read = function _read (size) {
-  if (!this.length)
-    return this.push(null)
-
-  size = Math.min(size, this.length)
-  this.push(this.slice(0, size))
-  this.consume(size)
-}
-
-
-BufferList.prototype.end = function end (chunk) {
-  DuplexStream.prototype.end.call(this, chunk)
-
-  if (this._callback) {
-    this._callback(null, this.slice())
-    this._callback = null
-  }
-}
-
-
-BufferList.prototype.get = function get (index) {
-  return this.slice(index, index + 1)[0]
-}
-
-
-BufferList.prototype.slice = function slice (start, end) {
-  if (typeof start == 'number' && start < 0)
-    start += this.length
-  if (typeof end == 'number' && end < 0)
-    end += this.length
-  return this.copy(null, 0, start, end)
-}
-
-
-BufferList.prototype.copy = function copy (dst, dstStart, srcStart, srcEnd) {
-  if (typeof srcStart != 'number' || srcStart < 0)
-    srcStart = 0
-  if (typeof srcEnd != 'number' || srcEnd > this.length)
-    srcEnd = this.length
-  if (srcStart >= this.length)
-    return dst || Buffer.alloc(0)
-  if (srcEnd <= 0)
-    return dst || Buffer.alloc(0)
-
-  var copy   = !!dst
-    , off    = this._offset(srcStart)
-    , len    = srcEnd - srcStart
-    , bytes  = len
-    , bufoff = (copy && dstStart) || 0
-    , start  = off[1]
-    , l
-    , i
-
-  // copy/slice everything
-  if (srcStart === 0 && srcEnd == this.length) {
-    if (!copy) { // slice, but full concat if multiple buffers
-      return this._bufs.length === 1
-        ? this._bufs[0]
-        : Buffer.concat(this._bufs, this.length)
-    }
-
-    // copy, need to copy individual buffers
-    for (i = 0; i < this._bufs.length; i++) {
-      this._bufs[i].copy(dst, bufoff)
-      bufoff += this._bufs[i].length
-    }
-
-    return dst
-  }
-
-  // easy, cheap case where it's a subset of one of the buffers
-  if (bytes <= this._bufs[off[0]].length - start) {
-    return copy
-      ? this._bufs[off[0]].copy(dst, dstStart, start, start + bytes)
-      : this._bufs[off[0]].slice(start, start + bytes)
-  }
-
-  if (!copy) // a slice, we need something to copy in to
-    dst = Buffer.allocUnsafe(len)
-
-  for (i = off[0]; i < this._bufs.length; i++) {
-    l = this._bufs[i].length - start
-
-    if (bytes > l) {
-      this._bufs[i].copy(dst, bufoff, start)
-    } else {
-      this._bufs[i].copy(dst, bufoff, start, start + bytes)
-      break
-    }
-
-    bufoff += l
-    bytes -= l
-
-    if (start)
-      start = 0
-  }
-
-  return dst
-}
-
-BufferList.prototype.shallowSlice = function shallowSlice (start, end) {
-  start = start || 0
-  end = end || this.length
-
-  if (start < 0)
-    start += this.length
-  if (end < 0)
-    end += this.length
-
-  var startOffset = this._offset(start)
-    , endOffset = this._offset(end)
-    , buffers = this._bufs.slice(startOffset[0], endOffset[0] + 1)
-
-  if (endOffset[1] == 0)
-    buffers.pop()
-  else
-    buffers[buffers.length-1] = buffers[buffers.length-1].slice(0, endOffset[1])
-
-  if (startOffset[1] != 0)
-    buffers[0] = buffers[0].slice(startOffset[1])
-
-  return new BufferList(buffers)
-}
-
-BufferList.prototype.toString = function toString (encoding, start, end) {
-  return this.slice(start, end).toString(encoding)
-}
-
-BufferList.prototype.consume = function consume (bytes) {
-  while (this._bufs.length) {
-    if (bytes >= this._bufs[0].length) {
-      bytes -= this._bufs[0].length
-      this.length -= this._bufs[0].length
-      this._bufs.shift()
-    } else {
-      this._bufs[0] = this._bufs[0].slice(bytes)
-      this.length -= bytes
-      break
-    }
-  }
-  return this
-}
-
-
-BufferList.prototype.duplicate = function duplicate () {
-  var i = 0
-    , copy = new BufferList()
-
-  for (; i < this._bufs.length; i++)
-    copy.append(this._bufs[i])
-
-  return copy
-}
-
-
-BufferList.prototype.destroy = function destroy () {
-  this._bufs.length = 0
-  this.length = 0
-  this.push(null)
-}
-
-
-;(function () {
-  var methods = {
-      'readDoubleBE' : 8
-    , 'readDoubleLE' : 8
-    , 'readFloatBE'  : 4
-    , 'readFloatLE'  : 4
-    , 'readInt32BE'  : 4
-    , 'readInt32LE'  : 4
-    , 'readUInt32BE' : 4
-    , 'readUInt32LE' : 4
-    , 'readInt16BE'  : 2
-    , 'readInt16LE'  : 2
-    , 'readUInt16BE' : 2
-    , 'readUInt16LE' : 2
-    , 'readInt8'     : 1
-    , 'readUInt8'    : 1
-  }
-
-  for (var m in methods) {
-    (function (m) {
-      BufferList.prototype[m] = function (offset) {
-        return this.slice(offset, offset + methods[m])[m](0)
-      }
-    }(m))
-  }
-}())
-
-
-module.exports = BufferList
-
-
-/***/ }),
-/* 593 */
-/***/ (function(module, exports) {
-
-function allocUnsafe (size) {
-  if (typeof size !== 'number') {
-    throw new TypeError('"size" argument must be a number')
-  }
-
-  if (size < 0) {
-    throw new RangeError('"size" argument must not be negative')
-  }
-
-  if (Buffer.allocUnsafe) {
-    return Buffer.allocUnsafe(size)
-  } else {
-    return new Buffer(size)
-  }
-}
-
-module.exports = allocUnsafe
-
-
-/***/ }),
-/* 594 */
-/***/ (function(module, exports) {
-
-/* Node.js 6.4.0 and up has full support */
-var hasFullSupport = (function () {
-  try {
-    if (!Buffer.isEncoding('latin1')) {
-      return false
-    }
-
-    var buf = Buffer.alloc ? Buffer.alloc(4) : new Buffer(4)
-
-    buf.fill('ab', 'ucs2')
-
-    return (buf.toString('hex') === '61006200')
-  } catch (_) {
-    return false
-  }
-}())
-
-function isSingleByte (val) {
-  return (val.length === 1 && val.charCodeAt(0) < 256)
-}
-
-function fillWithNumber (buffer, val, start, end) {
-  if (start < 0 || end > buffer.length) {
-    throw new RangeError('Out of range index')
-  }
-
-  start = start >>> 0
-  end = end === undefined ? buffer.length : end >>> 0
-
-  if (end > start) {
-    buffer.fill(val, start, end)
-  }
-
-  return buffer
-}
-
-function fillWithBuffer (buffer, val, start, end) {
-  if (start < 0 || end > buffer.length) {
-    throw new RangeError('Out of range index')
-  }
-
-  if (end <= start) {
-    return buffer
-  }
-
-  start = start >>> 0
-  end = end === undefined ? buffer.length : end >>> 0
-
-  var pos = start
-  var len = val.length
-  while (pos <= (end - len)) {
-    val.copy(buffer, pos)
-    pos += len
-  }
-
-  if (pos !== end) {
-    val.copy(buffer, pos, 0, end - pos)
-  }
-
-  return buffer
-}
-
-function fill (buffer, val, start, end, encoding) {
-  if (hasFullSupport) {
-    return buffer.fill(val, start, end, encoding)
-  }
-
-  if (typeof val === 'number') {
-    return fillWithNumber(buffer, val, start, end)
-  }
-
-  if (typeof val === 'string') {
-    if (typeof start === 'string') {
-      encoding = start
-      start = 0
-      end = buffer.length
-    } else if (typeof end === 'string') {
-      encoding = end
-      end = buffer.length
-    }
-
-    if (encoding !== undefined && typeof encoding !== 'string') {
-      throw new TypeError('encoding must be a string')
-    }
-
-    if (encoding === 'latin1') {
-      encoding = 'binary'
-    }
-
-    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
-      throw new TypeError('Unknown encoding: ' + encoding)
-    }
-
-    if (val === '') {
-      return fillWithNumber(buffer, 0, start, end)
-    }
-
-    if (isSingleByte(val)) {
-      return fillWithNumber(buffer, val.charCodeAt(0), start, end)
-    }
-
-    val = new Buffer(val, encoding)
-  }
-
-  if (Buffer.isBuffer(val)) {
-    return fillWithBuffer(buffer, val, start, end)
-  }
-
-  // Other values (e.g. undefined, boolean, object) results in zero-fill
-  return fillWithNumber(buffer, 0, start, end)
-}
-
-module.exports = fill
-
-
-/***/ }),
-/* 595 */
-/***/ (function(module, exports) {
-
-var toString = Object.prototype.toString
-
-var isModern = (
-  typeof Buffer.alloc === 'function' &&
-  typeof Buffer.allocUnsafe === 'function' &&
-  typeof Buffer.from === 'function'
-)
-
-function isArrayBuffer (input) {
-  return toString.call(input).slice(8, -1) === 'ArrayBuffer'
-}
-
-function fromArrayBuffer (obj, byteOffset, length) {
-  byteOffset >>>= 0
-
-  var maxLength = obj.byteLength - byteOffset
-
-  if (maxLength < 0) {
-    throw new RangeError("'offset' is out of bounds")
-  }
-
-  if (length === undefined) {
-    length = maxLength
-  } else {
-    length >>>= 0
-
-    if (length > maxLength) {
-      throw new RangeError("'length' is out of bounds")
-    }
-  }
-
-  return isModern
-    ? Buffer.from(obj.slice(byteOffset, byteOffset + length))
-    : new Buffer(new Uint8Array(obj.slice(byteOffset, byteOffset + length)))
-}
-
-function fromString (string, encoding) {
-  if (typeof encoding !== 'string' || encoding === '') {
-    encoding = 'utf8'
-  }
-
-  if (!Buffer.isEncoding(encoding)) {
-    throw new TypeError('"encoding" must be a valid string encoding')
-  }
-
-  return isModern
-    ? Buffer.from(string, encoding)
-    : new Buffer(string, encoding)
-}
-
-function bufferFrom (value, encodingOrOffset, length) {
-  if (typeof value === 'number') {
-    throw new TypeError('"value" argument must not be a number')
-  }
-
-  if (isArrayBuffer(value)) {
-    return fromArrayBuffer(value, encodingOrOffset, length)
-  }
-
-  if (typeof value === 'string') {
-    return fromString(value, encodingOrOffset)
-  }
-
-  return isModern
-    ? Buffer.from(value)
-    : new Buffer(value)
-}
-
-module.exports = bufferFrom
-
-
-/***/ }),
-/* 596 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * bytes
- * Copyright(c) 2012-2014 TJ Holowaychuk
- * Copyright(c) 2015 Jed Watson
- * MIT Licensed
- */
-
-
-
-/**
- * Module exports.
- * @public
- */
-
-module.exports = bytes;
-module.exports.format = format;
-module.exports.parse = parse;
-
-/**
- * Module variables.
- * @private
- */
-
-var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
-
-var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
-
-var map = {
-  b:  1,
-  kb: 1 << 10,
-  mb: 1 << 20,
-  gb: 1 << 30,
-  tb: ((1 << 30) * 1024)
-};
-
-var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb)$/i;
-
-/**
- * Convert the given value in bytes into a string or parse to string to an integer in bytes.
- *
- * @param {string|number} value
- * @param {{
- *  case: [string],
- *  decimalPlaces: [number]
- *  fixedDecimals: [boolean]
- *  thousandsSeparator: [string]
- *  unitSeparator: [string]
- *  }} [options] bytes options.
- *
- * @returns {string|number|null}
- */
-
-function bytes(value, options) {
-  if (typeof value === 'string') {
-    return parse(value);
-  }
-
-  if (typeof value === 'number') {
-    return format(value, options);
-  }
-
-  return null;
-}
-
-/**
- * Format the given value in bytes into a string.
- *
- * If the value is negative, it is kept as such. If it is a float,
- * it is rounded.
- *
- * @param {number} value
- * @param {object} [options]
- * @param {number} [options.decimalPlaces=2]
- * @param {number} [options.fixedDecimals=false]
- * @param {string} [options.thousandsSeparator=]
- * @param {string} [options.unit=]
- * @param {string} [options.unitSeparator=]
- *
- * @returns {string|null}
- * @public
- */
-
-function format(value, options) {
-  if (!Number.isFinite(value)) {
-    return null;
-  }
-
-  var mag = Math.abs(value);
-  var thousandsSeparator = (options && options.thousandsSeparator) || '';
-  var unitSeparator = (options && options.unitSeparator) || '';
-  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
-  var fixedDecimals = Boolean(options && options.fixedDecimals);
-  var unit = (options && options.unit) || '';
-
-  if (!unit || !map[unit.toLowerCase()]) {
-    if (mag >= map.tb) {
-      unit = 'TB';
-    } else if (mag >= map.gb) {
-      unit = 'GB';
-    } else if (mag >= map.mb) {
-      unit = 'MB';
-    } else if (mag >= map.kb) {
-      unit = 'KB';
-    } else {
-      unit = 'B';
-    }
-  }
-
-  var val = value / map[unit.toLowerCase()];
-  var str = val.toFixed(decimalPlaces);
-
-  if (!fixedDecimals) {
-    str = str.replace(formatDecimalsRegExp, '$1');
-  }
-
-  if (thousandsSeparator) {
-    str = str.replace(formatThousandsRegExp, thousandsSeparator);
-  }
-
-  return str + unitSeparator + unit;
-}
-
-/**
- * Parse the string value into an integer in bytes.
- *
- * If no unit is given, it is assumed the value is in bytes.
- *
- * @param {number|string} val
- *
- * @returns {number|null}
- * @public
- */
-
-function parse(val) {
-  if (typeof val === 'number' && !isNaN(val)) {
-    return val;
-  }
-
-  if (typeof val !== 'string') {
-    return null;
-  }
-
-  // Test if the string passed is valid
-  var results = parseRegExp.exec(val);
-  var floatValue;
-  var unit = 'b';
-
-  if (!results) {
-    // Nothing could be extracted from the given string
-    floatValue = parseInt(val, 10);
-    unit = 'b'
-  } else {
-    // Retrieve the value and the unit
-    floatValue = parseFloat(results[1]);
-    unit = results[4].toLowerCase();
-  }
-
-  return Math.floor(map[unit] * floatValue);
-}
-
-
-/***/ }),
-/* 597 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = (flag, argv) => {
-	argv = argv || process.argv;
-	const prefix = flag.startsWith('-') ? '' : (flag.length === 1 ? '-' : '--');
-	const pos = argv.indexOf(prefix + flag);
-	const terminatorPos = argv.indexOf('--');
-	return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);
-};
-
-
-/***/ }),
-/* 598 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const os = __webpack_require__(46);
-const hasFlag = __webpack_require__(597);
-
-const env = process.env;
-
-let forceColor;
-if (hasFlag('no-color') ||
-	hasFlag('no-colors') ||
-	hasFlag('color=false')) {
-	forceColor = false;
-} else if (hasFlag('color') ||
-	hasFlag('colors') ||
-	hasFlag('color=true') ||
-	hasFlag('color=always')) {
-	forceColor = true;
-}
-if ('FORCE_COLOR' in env) {
-	forceColor = env.FORCE_COLOR.length === 0 || parseInt(env.FORCE_COLOR, 10) !== 0;
-}
-
-function translateLevel(level) {
-	if (level === 0) {
-		return false;
-	}
-
-	return {
-		level,
-		hasBasic: true,
-		has256: level >= 2,
-		has16m: level >= 3
-	};
-}
-
-function supportsColor(stream) {
-	if (forceColor === false) {
-		return 0;
-	}
-
-	if (hasFlag('color=16m') ||
-		hasFlag('color=full') ||
-		hasFlag('color=truecolor')) {
-		return 3;
-	}
-
-	if (hasFlag('color=256')) {
-		return 2;
-	}
-
-	if (stream && !stream.isTTY && forceColor !== true) {
-		return 0;
-	}
-
-	const min = forceColor ? 1 : 0;
-
-	if (process.platform === 'win32') {
-		// Node.js 7.5.0 is the first version of Node.js to include a patch to
-		// libuv that enables 256 color output on Windows. Anything earlier and it
-		// won't work. However, here we target Node.js 8 at minimum as it is an LTS
-		// release, and Node.js 7 is not. Windows 10 build 10586 is the first Windows
-		// release that supports 256 colors. Windows 10 build 14931 is the first release
-		// that supports 16m/TrueColor.
-		const osRelease = os.release().split('.');
-		if (
-			Number(process.versions.node.split('.')[0]) >= 8 &&
-			Number(osRelease[0]) >= 10 &&
-			Number(osRelease[2]) >= 10586
-		) {
-			return Number(osRelease[2]) >= 14931 ? 3 : 2;
-		}
-
-		return 1;
-	}
-
-	if ('CI' in env) {
-		if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(sign => sign in env) || env.CI_NAME === 'codeship') {
-			return 1;
-		}
-
-		return min;
-	}
-
-	if ('TEAMCITY_VERSION' in env) {
-		return /^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0;
-	}
-
-	if (env.COLORTERM === 'truecolor') {
-		return 3;
-	}
-
-	if ('TERM_PROGRAM' in env) {
-		const version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);
-
-		switch (env.TERM_PROGRAM) {
-			case 'iTerm.app':
-				return version >= 3 ? 3 : 2;
-			case 'Apple_Terminal':
-				return 2;
-			// No default
-		}
-	}
-
-	if (/-256(color)?$/i.test(env.TERM)) {
-		return 2;
-	}
-
-	if (/^screen|^xterm|^vt100|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {
-		return 1;
-	}
-
-	if ('COLORTERM' in env) {
-		return 1;
-	}
-
-	if (env.TERM === 'dumb') {
-		return min;
-	}
-
-	return min;
-}
-
-function getSupportLevel(stream) {
-	const level = supportsColor(stream);
-	return translateLevel(level);
-}
-
-module.exports = {
-	supportsColor: getSupportLevel,
-	stdout: getSupportLevel(process.stdout),
-	stderr: getSupportLevel(process.stderr)
-};
-
-
-/***/ }),
-/* 599 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const TEMPLATE_REGEX = /(?:\\(u[a-f\d]{4}|x[a-f\d]{2}|.))|(?:\{(~)?(\w+(?:\([^)]*\))?(?:\.\w+(?:\([^)]*\))?)*)(?:[ \t]|(?=\r?\n)))|(\})|((?:.|[\r\n\f])+?)/gi;
-const STYLE_REGEX = /(?:^|\.)(\w+)(?:\(([^)]*)\))?/g;
-const STRING_REGEX = /^(['"])((?:\\.|(?!\1)[^\\])*)\1$/;
-const ESCAPE_REGEX = /\\(u[a-f\d]{4}|x[a-f\d]{2}|.)|([^\\])/gi;
-
-const ESCAPES = new Map([
-	['n', '\n'],
-	['r', '\r'],
-	['t', '\t'],
-	['b', '\b'],
-	['f', '\f'],
-	['v', '\v'],
-	['0', '\0'],
-	['\\', '\\'],
-	['e', '\u001B'],
-	['a', '\u0007']
-]);
-
-function unescape(c) {
-	if ((c[0] === 'u' && c.length === 5) || (c[0] === 'x' && c.length === 3)) {
-		return String.fromCharCode(parseInt(c.slice(1), 16));
-	}
-
-	return ESCAPES.get(c) || c;
-}
-
-function parseArguments(name, args) {
-	const results = [];
-	const chunks = args.trim().split(/\s*,\s*/g);
-	let matches;
-
-	for (const chunk of chunks) {
-		if (!isNaN(chunk)) {
-			results.push(Number(chunk));
-		} else if ((matches = chunk.match(STRING_REGEX))) {
-			results.push(matches[2].replace(ESCAPE_REGEX, (m, escape, chr) => escape ? unescape(escape) : chr));
-		} else {
-			throw new Error(`Invalid Chalk template style argument: ${chunk} (in style '${name}')`);
-		}
-	}
-
-	return results;
-}
-
-function parseStyle(style) {
-	STYLE_REGEX.lastIndex = 0;
-
-	const results = [];
-	let matches;
-
-	while ((matches = STYLE_REGEX.exec(style)) !== null) {
-		const name = matches[1];
-
-		if (matches[2]) {
-			const args = parseArguments(name, matches[2]);
-			results.push([name].concat(args));
-		} else {
-			results.push([name]);
-		}
-	}
-
-	return results;
-}
-
-function buildStyle(chalk, styles) {
-	const enabled = {};
-
-	for (const layer of styles) {
-		for (const style of layer.styles) {
-			enabled[style[0]] = layer.inverse ? null : style.slice(1);
-		}
-	}
-
-	let current = chalk;
-	for (const styleName of Object.keys(enabled)) {
-		if (Array.isArray(enabled[styleName])) {
-			if (!(styleName in current)) {
-				throw new Error(`Unknown Chalk style: ${styleName}`);
-			}
-
-			if (enabled[styleName].length > 0) {
-				current = current[styleName].apply(current, enabled[styleName]);
-			} else {
-				current = current[styleName];
-			}
-		}
-	}
-
-	return current;
-}
-
-module.exports = (chalk, tmp) => {
-	const styles = [];
-	const chunks = [];
-	let chunk = [];
-
-	// eslint-disable-next-line max-params
-	tmp.replace(TEMPLATE_REGEX, (m, escapeChar, inverse, style, close, chr) => {
-		if (escapeChar) {
-			chunk.push(unescape(escapeChar));
-		} else if (style) {
-			const str = chunk.join('');
-			chunk = [];
-			chunks.push(styles.length === 0 ? str : buildStyle(chalk, styles)(str));
-			styles.push({inverse, styles: parseStyle(style)});
-		} else if (close) {
-			if (styles.length === 0) {
-				throw new Error('Found extraneous } in Chalk template literal');
-			}
-
-			chunks.push(buildStyle(chalk, styles)(chunk.join('')));
-			chunk = [];
-			styles.pop();
-		} else {
-			chunk.push(chr);
-		}
-	});
-
-	chunks.push(chunk.join(''));
-
-	if (styles.length > 0) {
-		const errMsg = `Chalk template literal is missing ${styles.length} closing bracket${styles.length === 1 ? '' : 's'} (\`}\`)`;
-		throw new Error(errMsg);
-	}
-
-	return chunks.join('');
-};
-
-
-/***/ }),
-/* 600 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = chownr
-chownr.sync = chownrSync
-
-var fs = __webpack_require__(5)
-, path = __webpack_require__(0)
-
-function chownr (p, uid, gid, cb) {
-  fs.readdir(p, function (er, children) {
-    // any error other than ENOTDIR means it's not readable, or
-    // doesn't exist.  give up.
-    if (er && er.code !== "ENOTDIR") return cb(er)
-    if (er || !children.length) return fs.chown(p, uid, gid, cb)
-
-    var len = children.length
-    , errState = null
-    children.forEach(function (child) {
-      var pathChild = path.resolve(p, child);
-      fs.lstat(pathChild, function(er, stats) {
-        if (er)
-          return cb(er)
-        if (!stats.isSymbolicLink())
-          chownr(pathChild, uid, gid, then)
-        else
-          then()
-        })
-    })
-    function then (er) {
-      if (errState) return
-      if (er) return cb(errState = er)
-      if (-- len === 0) return fs.chown(p, uid, gid, cb)
-    }
-  })
-}
-
-function chownrSync (p, uid, gid) {
-  var children
-  try {
-    children = fs.readdirSync(p)
-  } catch (er) {
-    if (er && er.code === "ENOTDIR") return fs.chownSync(p, uid, gid)
-    throw er
-  }
-  if (!children.length) return fs.chownSync(p, uid, gid)
-
-  children.forEach(function (child) {
-    var pathChild = path.resolve(p, child)
-    var stats = fs.lstatSync(pathChild)
-    if (!stats.isSymbolicLink())
-      chownrSync(pathChild, uid, gid)
-  })
-  return fs.chownSync(p, uid, gid)
-}
-
-
-/***/ }),
-/* 601 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var env = process.env
-
-var vendors = [
-  // Constant, Name, Envs
-  ['TRAVIS', 'Travis CI', 'TRAVIS'],
-  ['CIRCLE', 'CircleCI', 'CIRCLECI'],
-  ['GITLAB', 'GitLab CI', 'GITLAB_CI'],
-  ['APPVEYOR', 'AppVeyor', 'APPVEYOR'],
-  ['CODESHIP', 'Codeship', {CI_NAME: 'codeship'}],
-  ['DRONE', 'Drone', 'DRONE'],
-  ['MAGNUM', 'Magnum CI', 'MAGNUM'],
-  ['SEMAPHORE', 'Semaphore', 'SEMAPHORE'],
-  ['JENKINS', 'Jenkins', 'JENKINS_URL', 'BUILD_ID'],
-  ['BAMBOO', 'Bamboo', 'bamboo_planKey'],
-  ['TFS', 'Team Foundation Server', 'TF_BUILD'],
-  ['TEAMCITY', 'TeamCity', 'TEAMCITY_VERSION'],
-  ['BUILDKITE', 'Buildkite', 'BUILDKITE'],
-  ['HUDSON', 'Hudson', 'HUDSON_URL'],
-  ['TASKCLUSTER', 'TaskCluster', 'TASK_ID', 'RUN_ID'],
-  ['GOCD', 'GoCD', 'GO_PIPELINE_LABEL'],
-  ['BITBUCKET', 'Bitbucket Pipelines', 'BITBUCKET_COMMIT'],
-  ['CODEBUILD', 'AWS CodeBuild', 'CODEBUILD_BUILD_ARN']
-]
-
-exports.name = null
-
-vendors.forEach(function (vendor) {
-  var constant = vendor.shift()
-  var name = vendor.shift()
-  var isCI = vendor.every(function (obj) {
-    if (typeof obj === 'string') return !!env[obj]
-    return Object.keys(obj).every(function (k) {
-      return env[k] === obj[k]
-    })
-  })
-  exports[constant] = isCI
-  if (isCI) exports.name = name
-})
-
-exports.isCI = !!(
-  env.CI ||                      // Travis CI, CircleCI, Gitlab CI, Appveyor, CodeShip
-  env.CONTINUOUS_INTEGRATION ||  // Travis CI
-  env.BUILD_NUMBER ||            // Jenkins, TeamCity
-  exports.name ||
-  false
-)
-
-
-/***/ }),
-/* 602 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(605);
-
-/***/ }),
-/* 603 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var kindOf = __webpack_require__(179);
-var utils = __webpack_require__(382);
-
-/**
- * A representation of a cell within the table.
- * Implementations must have `init` and `draw` methods,
- * as well as `colSpan`, `rowSpan`, `desiredHeight` and `desiredWidth` properties.
- * @param options
- * @constructor
- */
-function Cell(options){
-  this.setOptions(options);
-}
-
-Cell.prototype.setOptions = function(options){
-  if(['boolean', 'number', 'string'].indexOf(kindOf(options)) !== -1){
-    options = {content:''+options};
-  }
-  options = options || {};
-  this.options = options;
-  var content = options.content;
-  if (['boolean', 'number', 'string'].indexOf(kindOf(content)) !== -1) {
-    this.content = String(content);
-  } else if (!content) {
-    this.content = '';
-  } else {
-    throw new Error('Content needs to be a primitive, got: ' + (typeof  content));
-  }
-  this.colSpan = options.colSpan || 1;
-  this.rowSpan = options.rowSpan || 1;
-};
-
-Cell.prototype.mergeTableOptions = function(tableOptions,cells){
-  this.cells = cells;
-
-  var optionsChars = this.options.chars || {};
-  var tableChars = tableOptions.chars;
-  var chars = this.chars = {};
-  CHAR_NAMES.forEach(function(name){
-     setOption(optionsChars,tableChars,name,chars);
-  });
-
-  this.truncate = this.options.truncate || tableOptions.truncate;
-
-  var style = this.options.style = this.options.style || {};
-  var tableStyle = tableOptions.style;
-  setOption(style, tableStyle, 'padding-left', this);
-  setOption(style, tableStyle, 'padding-right', this);
-  this.head = style.head || tableStyle.head;
-  this.border = style.border || tableStyle.border;
-
-  var fixedWidth = tableOptions.colWidths[this.x];
-  if(tableOptions.wordWrap && fixedWidth){
-    fixedWidth -= this.paddingLeft + this.paddingRight;
-    if(this.colSpan){
-      var i = 1;
-      while(i<this.colSpan){
-        fixedWidth += tableOptions.colWidths[this.x + i];
-        i++;
-      }
-    }
-    this.lines = utils.colorizeLines(utils.wordWrap(fixedWidth,this.content));
-  }
-  else {
-    this.lines = utils.colorizeLines(this.content.split('\n'));
-  }
-
-  this.desiredWidth = utils.strlen(this.content) + this.paddingLeft + this.paddingRight;
-  this.desiredHeight = this.lines.length;
-};
-
-/**
- * Each cell will have it's `x` and `y` values set by the `layout-manager` prior to
- * `init` being called;
- * @type {Number}
- */
-
-Cell.prototype.x = null;
-Cell.prototype.y = null;
-
-/**
- * Initializes the Cells data structure.
- *
- * @param tableOptions - A fully populated set of tableOptions.
- * In addition to the standard default values, tableOptions must have fully populated the
- * `colWidths` and `rowWidths` arrays. Those arrays must have lengths equal to the number
- * of columns or rows (respectively) in this table, and each array item must be a Number.
- *
- */
-Cell.prototype.init = function(tableOptions){
-  var x = this.x;
-  var y = this.y;
-  this.widths = tableOptions.colWidths.slice(x, x + this.colSpan);
-  this.heights = tableOptions.rowHeights.slice(y, y + this.rowSpan);
-  this.width = this.widths.reduce(sumPlusOne, -1);
-  this.height = this.heights.reduce(sumPlusOne, -1);
-
-  this.hAlign = this.options.hAlign || tableOptions.colAligns[x];
-  this.vAlign = this.options.vAlign || tableOptions.rowAligns[y];
-
-  this.drawRight = x + this.colSpan == tableOptions.colWidths.length;
-};
-
-/**
- * Draws the given line of the cell.
- * This default implementation defers to methods `drawTop`, `drawBottom`, `drawLine` and `drawEmpty`.
- * @param lineNum - can be `top`, `bottom` or a numerical line number.
- * @param spanningCell - will be a number if being called from a RowSpanCell, and will represent how
- * many rows below it's being called from. Otherwise it's undefined.
- * @returns {String} The representation of this line.
- */
-Cell.prototype.draw = function(lineNum,spanningCell){
-  if(lineNum == 'top') return this.drawTop(this.drawRight);
-  if(lineNum == 'bottom') return this.drawBottom(this.drawRight);
-  var padLen = Math.max(this.height - this.lines.length, 0);
-  var padTop;
-  switch (this.vAlign){
-    case 'center':
-      padTop = Math.ceil(padLen / 2);
-      break;
-    case 'bottom':
-      padTop = padLen;
-      break;
-    default :
-      padTop = 0;
-  }
-  if( (lineNum < padTop) || (lineNum >= (padTop + this.lines.length))){
-    return this.drawEmpty(this.drawRight,spanningCell);
-  }
-  var forceTruncation = (this.lines.length > this.height) && (lineNum + 1 >= this.height);
-  return this.drawLine(lineNum - padTop, this.drawRight, forceTruncation,spanningCell);
-};
-
-/**
- * Renders the top line of the cell.
- * @param drawRight - true if this method should render the right edge of the cell.
- * @returns {String}
- */
-Cell.prototype.drawTop = function(drawRight){
-  var content = [];
-  if(this.cells){  //TODO: cells should always exist - some tests don't fill it in though
-    this.widths.forEach(function(width,index){
-      content.push(this._topLeftChar(index));
-      content.push(
-        utils.repeat(this.chars[this.y == 0 ? 'top' : 'mid'],width)
-      );
-    },this);
-  }
-  else {
-    content.push(this._topLeftChar(0));
-    content.push(utils.repeat(this.chars[this.y == 0 ? 'top' : 'mid'],this.width));
-  }
-  if(drawRight){
-    content.push(this.chars[this.y == 0 ? 'topRight' : 'rightMid']);
-  }
-  return this.wrapWithStyleColors('border',content.join(''));
-};
-
-Cell.prototype._topLeftChar = function(offset){
-  var x = this.x+offset;
-  var leftChar;
-  if(this.y == 0){
-    leftChar = x == 0 ? 'topLeft' : (offset == 0 ? 'topMid' : 'top');
-  } else  {
-    if(x == 0){
-      leftChar = 'leftMid';
-    }
-    else {
-      leftChar = offset == 0 ? 'midMid' : 'bottomMid';
-      if(this.cells){  //TODO: cells should always exist - some tests don't fill it in though
-        var spanAbove = this.cells[this.y-1][x] instanceof Cell.ColSpanCell;
-        if(spanAbove){
-          leftChar = offset == 0 ? 'topMid' : 'mid';
-        }
-        if(offset == 0){
-          var i = 1;
-          while(this.cells[this.y][x-i] instanceof Cell.ColSpanCell){
-            i++;
-          }
-          if(this.cells[this.y][x-i] instanceof Cell.RowSpanCell){
-            leftChar = 'leftMid';
-          }
-        }
-      }
-    }
-  }
-  return this.chars[leftChar];
-};
-
-Cell.prototype.wrapWithStyleColors = function(styleProperty,content){
-  if(this[styleProperty] && this[styleProperty].length){
-    try {
-      var colors = __webpack_require__(621);
-      for(var i = this[styleProperty].length - 1; i >= 0; i--){
-        colors = colors[this[styleProperty][i]];
-      }
-      return colors(content);
-    } catch (e) {
-      return content;
-    }
-  }
-  else {
-    return content;
-  }
-};
-
-/**
- * Renders a line of text.
- * @param lineNum - Which line of text to render. This is not necessarily the line within the cell.
- * There may be top-padding above the first line of text.
- * @param drawRight - true if this method should render the right edge of the cell.
- * @param forceTruncationSymbol - `true` if the rendered text should end with the truncation symbol even
- * if the text fits. This is used when the cell is vertically truncated. If `false` the text should
- * only include the truncation symbol if the text will not fit horizontally within the cell width.
- * @param spanningCell - a number of if being called from a RowSpanCell. (how many rows below). otherwise undefined.
- * @returns {String}
- */
-Cell.prototype.drawLine = function(lineNum,drawRight,forceTruncationSymbol,spanningCell){
-  var left = this.chars[this.x == 0 ? 'left' : 'middle'];
-  if(this.x && spanningCell && this.cells){
-    var cellLeft = this.cells[this.y+spanningCell][this.x-1];
-    while(cellLeft instanceof ColSpanCell){
-      cellLeft = this.cells[cellLeft.y][cellLeft.x-1];
-    }
-    if(!(cellLeft instanceof RowSpanCell)){
-      left = this.chars['rightMid'];
-    }
-  }
-  var leftPadding = utils.repeat(' ', this.paddingLeft);
-  var right = (drawRight ? this.chars['right'] : '');
-  var rightPadding = utils.repeat(' ', this.paddingRight);
-  var line = this.lines[lineNum];
-  var len = this.width - (this.paddingLeft + this.paddingRight);
-  if(forceTruncationSymbol) line += this.truncate || '…';
-  var content = utils.truncate(line,len,this.truncate);
-  content = utils.pad(content, len, ' ', this.hAlign);
-  content = leftPadding + content + rightPadding;
-  return this.stylizeLine(left,content,right);
-};
-
-Cell.prototype.stylizeLine = function(left,content,right){
-  left = this.wrapWithStyleColors('border',left);
-  right = this.wrapWithStyleColors('border',right);
-  if(this.y === 0){
-    content = this.wrapWithStyleColors('head',content);
-  }
-  return left + content + right;
-};
-
-/**
- * Renders the bottom line of the cell.
- * @param drawRight - true if this method should render the right edge of the cell.
- * @returns {String}
- */
-Cell.prototype.drawBottom = function(drawRight){
-  var left = this.chars[this.x == 0 ? 'bottomLeft' : 'bottomMid'];
-  var content = utils.repeat(this.chars.bottom,this.width);
-  var right = drawRight ? this.chars['bottomRight'] : '';
-  return this.wrapWithStyleColors('border',left + content + right);
-};
-
-/**
- * Renders a blank line of text within the cell. Used for top and/or bottom padding.
- * @param drawRight - true if this method should render the right edge of the cell.
- * @param spanningCell - a number of if being called from a RowSpanCell. (how many rows below). otherwise undefined.
- * @returns {String}
- */
-Cell.prototype.drawEmpty = function(drawRight,spanningCell){
-  var left = this.chars[this.x == 0 ? 'left' : 'middle'];
-  if(this.x && spanningCell && this.cells){
-    var cellLeft = this.cells[this.y+spanningCell][this.x-1];
-    while(cellLeft instanceof ColSpanCell){
-      cellLeft = this.cells[cellLeft.y][cellLeft.x-1];
-    }
-    if(!(cellLeft instanceof RowSpanCell)){
-      left = this.chars['rightMid'];
-    }
-  }
-  var right = (drawRight ? this.chars['right'] : '');
-  var content = utils.repeat(' ',this.width);
-  return this.stylizeLine(left , content , right);
-};
-
-/**
- * A Cell that doesn't do anything. It just draws empty lines.
- * Used as a placeholder in column spanning.
- * @constructor
- */
-function ColSpanCell(){}
-
-ColSpanCell.prototype.draw = function(){
-  return '';
-};
-
-ColSpanCell.prototype.init = function(tableOptions){};
-
-
-/**
- * A placeholder Cell for a Cell that spans multiple rows.
- * It delegates rendering to the original cell, but adds the appropriate offset.
- * @param originalCell
- * @constructor
- */
-function RowSpanCell(originalCell){
-  this.originalCell = originalCell;
-}
-
-RowSpanCell.prototype.init = function(tableOptions){
-  var y = this.y;
-  var originalY = this.originalCell.y;
-  this.cellOffset = y - originalY;
-  this.offset = findDimension(tableOptions.rowHeights,originalY,this.cellOffset);
-};
-
-RowSpanCell.prototype.draw = function(lineNum){
-  if(lineNum == 'top'){
-    return this.originalCell.draw(this.offset,this.cellOffset);
-  }
-  if(lineNum == 'bottom'){
-    return this.originalCell.draw('bottom');
-  }
-  return this.originalCell.draw(this.offset + 1 + lineNum);
-};
-
-ColSpanCell.prototype.mergeTableOptions =
-RowSpanCell.prototype.mergeTableOptions = function(){};
-
-// HELPER FUNCTIONS
-function setOption(objA,objB,nameB,targetObj){
-  var nameA = nameB.split('-');
-  if(nameA.length > 1) {
-    nameA[1] = nameA[1].charAt(0).toUpperCase() + nameA[1].substr(1);
-    nameA = nameA.join('');
-    targetObj[nameA] = objA[nameA] || objA[nameB] || objB[nameA] || objB[nameB];
-  }
-  else {
-    targetObj[nameB] = objA[nameB] || objB[nameB];
-  }
-}
-
-function findDimension(dimensionTable, startingIndex, span){
-  var ret = dimensionTable[startingIndex];
-  for(var i = 1; i < span; i++){
-    ret += 1 + dimensionTable[startingIndex + i];
-  }
-  return ret;
-}
-
-function sumPlusOne(a,b){
-  return a+b+1;
-}
-
-var CHAR_NAMES = [  'top'
-  , 'top-mid'
-  , 'top-left'
-  , 'top-right'
-  , 'bottom'
-  , 'bottom-mid'
-  , 'bottom-left'
-  , 'bottom-right'
-  , 'left'
-  , 'left-mid'
-  , 'mid'
-  , 'mid-mid'
-  , 'right'
-  , 'right-mid'
-  , 'middle'
-];
-module.exports = Cell;
-module.exports.ColSpanCell = ColSpanCell;
-module.exports.RowSpanCell = RowSpanCell;
-
-
-/***/ }),
-/* 604 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var kindOf = __webpack_require__(179);
-var objectAssign = __webpack_require__(303);
-var Cell = __webpack_require__(603);
-var RowSpanCell = Cell.RowSpanCell;
-var ColSpanCell = Cell.ColSpanCell;
-
-(function(){
-  function layoutTable(table){
-    table.forEach(function(row,rowIndex){
-      row.forEach(function(cell,columnIndex){
-        cell.y = rowIndex;
-        cell.x = columnIndex;
-        for(var y = rowIndex; y >= 0; y--){
-          var row2 = table[y];
-          var xMax = (y === rowIndex) ? columnIndex : row2.length;
-          for(var x = 0; x < xMax; x++){
-            var cell2 = row2[x];
-            while(cellsConflict(cell,cell2)){
-              cell.x++;
-            }
-          }
-        }
-      });
-    });
-  }
-
-  function maxWidth(table) {
-    var mw = 0;
-    table.forEach(function (row) {
-      row.forEach(function (cell) {
-        mw = Math.max(mw,cell.x + (cell.colSpan || 1));
-      });
-    });
-    return mw;
-  }
-
-  function maxHeight(table){
-    return table.length;
-  }
-
-  function cellsConflict(cell1,cell2){
-    var yMin1 = cell1.y;
-    var yMax1 = cell1.y - 1 + (cell1.rowSpan || 1);
-    var yMin2 = cell2.y;
-    var yMax2 = cell2.y - 1 + (cell2.rowSpan || 1);
-    var yConflict = !(yMin1 > yMax2 || yMin2 > yMax1);
-
-    var xMin1= cell1.x;
-    var xMax1 = cell1.x - 1 + (cell1.colSpan || 1);
-    var xMin2= cell2.x;
-    var xMax2 = cell2.x - 1 + (cell2.colSpan || 1);
-    var xConflict = !(xMin1 > xMax2 || xMin2 > xMax1);
-
-    return yConflict && xConflict;
-  }
-
-  function conflictExists(rows,x,y){
-    var i_max = Math.min(rows.length-1,y);
-    var cell = {x:x,y:y};
-    for(var i = 0; i <= i_max; i++){
-      var row = rows[i];
-      for(var j = 0; j < row.length; j++){
-        if(cellsConflict(cell,row[j])){
-          return true;
-        }
-      }
-    }
-    return false;
-  }
-
-  function allBlank(rows,y,xMin,xMax){
-    for(var x = xMin; x < xMax; x++){
-      if(conflictExists(rows,x,y)){
-        return false;
-      }
-    }
-    return true;
-  }
-
-  function addRowSpanCells(table){
-    table.forEach(function(row,rowIndex){
-      row.forEach(function(cell){
-        for(var i = 1; i < cell.rowSpan; i++){
-          var rowSpanCell = new RowSpanCell(cell);
-          rowSpanCell.x = cell.x;
-          rowSpanCell.y = cell.y + i;
-          rowSpanCell.colSpan = cell.colSpan;
-          insertCell(rowSpanCell,table[rowIndex+i]);
-        }
-      });
-    });
-  }
-
-  function addColSpanCells(cellRows){
-    for(var rowIndex = cellRows.length-1; rowIndex >= 0; rowIndex--) {
-      var cellColumns = cellRows[rowIndex];
-      for (var columnIndex = 0; columnIndex < cellColumns.length; columnIndex++) {
-        var cell = cellColumns[columnIndex];
-        for (var k = 1; k < cell.colSpan; k++) {
-          var colSpanCell = new ColSpanCell();
-          colSpanCell.x = cell.x + k;
-          colSpanCell.y = cell.y;
-          cellColumns.splice(columnIndex + 1, 0, colSpanCell);
-        }
-      }
-    }
-  }
-
-  function insertCell(cell,row){
-    var x = 0;
-    while(x < row.length && (row[x].x < cell.x)) {
-      x++;
-    }
-    row.splice(x,0,cell);
-  }
-
-  function fillInTable(table){
-    var h_max = maxHeight(table);
-    var w_max = maxWidth(table);
-    for(var y = 0; y < h_max; y++){
-      for(var x = 0; x < w_max; x++){
-        if(!conflictExists(table,x,y)){
-          var opts = {x:x,y:y,colSpan:1,rowSpan:1};
-          x++;
-          while(x < w_max && !conflictExists(table,x,y)){
-            opts.colSpan++;
-            x++;
-          }
-          var y2 = y + 1;
-          while(y2 < h_max && allBlank(table,y2,opts.x,opts.x+opts.colSpan)){
-            opts.rowSpan++;
-            y2++;
-          }
-
-          var cell = new Cell(opts);
-          cell.x = opts.x;
-          cell.y = opts.y;
-          insertCell(cell,table[y]);
-        }
-      }
-    }
-  }
-
-  function generateCells(rows){
-    return rows.map(function(row){
-      if(kindOf(row) !== 'array'){
-        var key = Object.keys(row)[0];
-        row = row[key];
-        if(kindOf(row) === 'array'){
-          row = row.slice();
-          row.unshift(key);
-        }
-        else {
-          row = [key,row];
-        }
-      }
-      return row.map(function(cell){
-        return new Cell(cell);
-      });
-    });
-  }
-
-  function makeTableLayout(rows){
-    var cellRows = generateCells(rows);
-    layoutTable(cellRows);
-    fillInTable(cellRows);
-    addRowSpanCells(cellRows);
-    addColSpanCells(cellRows);
-    return cellRows;
-  }
-
-  module.exports = {
-    makeTableLayout: makeTableLayout,
-    layoutTable: layoutTable,
-    addRowSpanCells: addRowSpanCells,
-    maxWidth:maxWidth,
-    fillInTable:fillInTable,
-    computeWidths:makeComputeWidths('colSpan','desiredWidth','x',1),
-    computeHeights:makeComputeWidths('rowSpan','desiredHeight','y',1)
-  };
-})();
-
-function makeComputeWidths(colSpan,desiredWidth,x,forcedMin){
-  return function(vals,table){
-    var result = [];
-    var spanners = [];
-    table.forEach(function(row){
-      row.forEach(function(cell){
-        if((cell[colSpan] || 1) > 1){
-          spanners.push(cell);
-        }
-        else {
-          result[cell[x]] = Math.max(result[cell[x]] || 0, cell[desiredWidth] || 0, forcedMin);
-        }
-      });
-    });
-
-    vals.forEach(function(val,index){
-      if(kindOf(val) === 'number'){
-        result[index] = val;
-      }
-    });
-
-    //spanners.forEach(function(cell){
-    for(var k = spanners.length - 1; k >=0; k--){
-      var cell = spanners[k];
-      var span = cell[colSpan];
-      var col = cell[x];
-      var existingWidth = result[col];
-      var editableCols = kindOf(vals[col]) === 'number' ? 0 : 1;
-      for(var i = 1; i < span; i ++){
-        existingWidth += 1 + result[col + i];
-        if(kindOf(vals[col + i]) !== 'number'){
-          editableCols++;
-        }
-      }
-      if(cell[desiredWidth] > existingWidth){
-        i = 0;
-        while(editableCols > 0 && cell[desiredWidth] > existingWidth){
-          if(kindOf(vals[col+i]) !== 'number'){
-            var dif = Math.round( (cell[desiredWidth] - existingWidth) / editableCols );
-            existingWidth += dif;
-            result[col + i] += dif;
-            editableCols--;
-          }
-          i++;
-        }
-      }
-    }
-
-    objectAssign(vals,result);
-    for(var j = 0; j < vals.length; j++){
-      vals[j] = Math.max(forcedMin, vals[j] || 0);
-    }
-  };
-}
-
-
-/***/ }),
-/* 605 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var utils = __webpack_require__(382);
-var tableLayout = __webpack_require__(604);
-
-function Table(options){
-  this.options = utils.mergeOptions(options);
-}
-
-Table.prototype.__proto__ = Array.prototype;
-
-Table.prototype.toString = function(){
-  var array = this;
-  var headersPresent = this.options.head && this.options.head.length;
-  if(headersPresent){
-    array = [this.options.head];
-    if(this.length){
-      array.push.apply(array,this);
-    }
-  }
-  else {
-    this.options.style.head=[];
-  }
-
-  var cells = tableLayout.makeTableLayout(array);
-
-  cells.forEach(function(row){
-    row.forEach(function(cell){
-      cell.mergeTableOptions(this.options,cells);
-    },this);
-  },this);
-
-  tableLayout.computeWidths(this.options.colWidths,cells);
-  tableLayout.computeHeights(this.options.rowHeights,cells);
-
-  cells.forEach(function(row,rowIndex){
-    row.forEach(function(cell,cellIndex){
-      cell.init(this.options);
-    },this);
-  },this);
-
-  var result = [];
-
-  for(var rowIndex = 0; rowIndex < cells.length; rowIndex++){
-    var row = cells[rowIndex];
-    var heightOfRow = this.options.rowHeights[rowIndex];
-
-    if(rowIndex === 0 || !this.options.style.compact || (rowIndex == 1 && headersPresent)){
-      doDraw(row,'top',result);
-    }
-
-    for(var lineNum = 0; lineNum < heightOfRow; lineNum++){
-      doDraw(row,lineNum,result);
-    }
-
-    if(rowIndex + 1 == cells.length){
-      doDraw(row,'bottom',result);
-    }
-  }
-
-  return result.join('\n');
-};
-
-function doDraw(row,lineNum,result){
-  var line = [];
-  row.forEach(function(cell){
-    line.push(cell.draw(lineNum));
-  });
-  var str = line.join('');
-  if(str.length) result.push(str);
-}
-
-Table.prototype.__defineGetter__('width', function (){
-  var str = this.toString().split("\n");
-  return str[0].length;
-});
-
-module.exports = Table;
-
-
-/***/ }),
-/* 606 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-exports = module.exports = cliWidth;
-
-function normalizeOpts(options) {
-  var defaultOpts = {
-    defaultWidth: 0,
-    output: process.stdout,
-    tty: __webpack_require__(104)
-  };
-
-  if (!options) {
-    return defaultOpts;
-  } else {
-    Object.keys(defaultOpts).forEach(function (key) {
-      if (!options[key]) {
-        options[key] = defaultOpts[key];
-      }
-    });
-
-    return options;
-  }
-}
-
-function cliWidth(options) {
-  var opts = normalizeOpts(options);
-
-  if (opts.output.getWindowSize) {
-    return opts.output.getWindowSize()[0] || opts.defaultWidth;
-  } else {
-    if (opts.tty.getWindowSize) {
-      return opts.tty.getWindowSize()[1] || opts.defaultWidth;
-    } else {
-      if (opts.output.columns) {
-        return opts.output.columns;
-      } else {
-        if (process.env.CLI_WIDTH) {
-          var width = parseInt(process.env.CLI_WIDTH, 10);
-
-          if (!isNaN(width) && width !== 0) {
-            return width;
-          }
-        }
-      }
-
-      return opts.defaultWidth;
-    }
-  }
-};
-
-
-/***/ }),
-/* 607 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/* eslint-disable babel/new-cap, xo/throw-new-error */
-
-module.exports = function (str, pos) {
-	if (str === null || str === undefined) {
-		throw TypeError();
-	}
-
-	str = String(str);
-
-	var size = str.length;
-	var i = pos ? Number(pos) : 0;
-
-	if (Number.isNaN(i)) {
-		i = 0;
-	}
-
-	if (i < 0 || i >= size) {
-		return undefined;
-	}
-
-	var first = str.charCodeAt(i);
-
-	if (first >= 0xD800 && first <= 0xDBFF && size > i + 1) {
-		var second = str.charCodeAt(i + 1);
-
-		if (second >= 0xDC00 && second <= 0xDFFF) {
-			return ((first - 0xD800) * 0x400) + second - 0xDC00 + 0x10000;
-		}
-	}
-
-	return first;
-};
-
-
-/***/ }),
-/* 608 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var conversions = __webpack_require__(384);
-var route = __webpack_require__(609);
-
-var convert = {};
-
-var models = Object.keys(conversions);
-
-function wrapRaw(fn) {
-	var wrappedFn = function (args) {
-		if (args === undefined || args === null) {
-			return args;
-		}
-
-		if (arguments.length > 1) {
-			args = Array.prototype.slice.call(arguments);
-		}
-
-		return fn(args);
-	};
-
-	// preserve .conversion property if there is one
-	if ('conversion' in fn) {
-		wrappedFn.conversion = fn.conversion;
-	}
-
-	return wrappedFn;
-}
-
-function wrapRounded(fn) {
-	var wrappedFn = function (args) {
-		if (args === undefined || args === null) {
-			return args;
-		}
-
-		if (arguments.length > 1) {
-			args = Array.prototype.slice.call(arguments);
-		}
-
-		var result = fn(args);
-
-		// we're assuming the result is an array here.
-		// see notice in conversions.js; don't use box types
-		// in conversion functions.
-		if (typeof result === 'object') {
-			for (var len = result.length, i = 0; i < len; i++) {
-				result[i] = Math.round(result[i]);
-			}
-		}
-
-		return result;
-	};
-
-	// preserve .conversion property if there is one
-	if ('conversion' in fn) {
-		wrappedFn.conversion = fn.conversion;
-	}
-
-	return wrappedFn;
-}
-
-models.forEach(function (fromModel) {
-	convert[fromModel] = {};
-
-	Object.defineProperty(convert[fromModel], 'channels', {value: conversions[fromModel].channels});
-	Object.defineProperty(convert[fromModel], 'labels', {value: conversions[fromModel].labels});
-
-	var routes = route(fromModel);
-	var routeModels = Object.keys(routes);
-
-	routeModels.forEach(function (toModel) {
-		var fn = routes[toModel];
-
-		convert[fromModel][toModel] = wrapRounded(fn);
-		convert[fromModel][toModel].raw = wrapRaw(fn);
-	});
-});
-
-module.exports = convert;
-
-
-/***/ }),
-/* 609 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var conversions = __webpack_require__(384);
-
-/*
-	this function routes a model to all other models.
-
-	all functions that are routed have a property `.conversion` attached
-	to the returned synthetic function. This property is an array
-	of strings, each with the steps in between the 'from' and 'to'
-	color models (inclusive).
-
-	conversions that are not possible simply are not included.
-*/
-
-function buildGraph() {
-	var graph = {};
-	// https://jsperf.com/object-keys-vs-for-in-with-closure/3
-	var models = Object.keys(conversions);
-
-	for (var len = models.length, i = 0; i < len; i++) {
-		graph[models[i]] = {
-			// http://jsperf.com/1-vs-infinity
-			// micro-opt, but this is simple.
-			distance: -1,
-			parent: null
-		};
-	}
-
-	return graph;
-}
-
-// https://en.wikipedia.org/wiki/Breadth-first_search
-function deriveBFS(fromModel) {
-	var graph = buildGraph();
-	var queue = [fromModel]; // unshift -> queue -> pop
-
-	graph[fromModel].distance = 0;
-
-	while (queue.length) {
-		var current = queue.pop();
-		var adjacents = Object.keys(conversions[current]);
-
-		for (var len = adjacents.length, i = 0; i < len; i++) {
-			var adjacent = adjacents[i];
-			var node = graph[adjacent];
-
-			if (node.distance === -1) {
-				node.distance = graph[current].distance + 1;
-				node.parent = current;
-				queue.unshift(adjacent);
-			}
-		}
-	}
-
-	return graph;
-}
-
-function link(from, to) {
-	return function (args) {
-		return to(from(args));
-	};
-}
-
-function wrapConversion(toModel, graph) {
-	var path = [graph[toModel].parent, toModel];
-	var fn = conversions[graph[toModel].parent][toModel];
-
-	var cur = graph[toModel].parent;
-	while (graph[cur].parent) {
-		path.unshift(graph[cur].parent);
-		fn = link(conversions[graph[cur].parent][cur], fn);
-		cur = graph[cur].parent;
-	}
-
-	fn.conversion = path;
-	return fn;
-}
-
-module.exports = function (fromModel) {
-	var graph = deriveBFS(fromModel);
-	var conversion = {};
-
-	var models = Object.keys(graph);
-	for (var len = models.length, i = 0; i < len; i++) {
-		var toModel = models[i];
-		var node = graph[toModel];
-
-		if (node.parent === null) {
-			// no possible conversion, or this node is the source model.
-			continue;
-		}
-
-		conversion[toModel] = wrapConversion(toModel, graph);
-	}
-
-	return conversion;
-};
-
-
-
-/***/ }),
-/* 610 */
-/***/ (function(module, exports) {
-
-module.exports = {
-	"aliceblue": [240, 248, 255],
-	"antiquewhite": [250, 235, 215],
-	"aqua": [0, 255, 255],
-	"aquamarine": [127, 255, 212],
-	"azure": [240, 255, 255],
-	"beige": [245, 245, 220],
-	"bisque": [255, 228, 196],
-	"black": [0, 0, 0],
-	"blanchedalmond": [255, 235, 205],
-	"blue": [0, 0, 255],
-	"blueviolet": [138, 43, 226],
-	"brown": [165, 42, 42],
-	"burlywood": [222, 184, 135],
-	"cadetblue": [95, 158, 160],
-	"chartreuse": [127, 255, 0],
-	"chocolate": [210, 105, 30],
-	"coral": [255, 127, 80],
-	"cornflowerblue": [100, 149, 237],
-	"cornsilk": [255, 248, 220],
-	"crimson": [220, 20, 60],
-	"cyan": [0, 255, 255],
-	"darkblue": [0, 0, 139],
-	"darkcyan": [0, 139, 139],
-	"darkgoldenrod": [184, 134, 11],
-	"darkgray": [169, 169, 169],
-	"darkgreen": [0, 100, 0],
-	"darkgrey": [169, 169, 169],
-	"darkkhaki": [189, 183, 107],
-	"darkmagenta": [139, 0, 139],
-	"darkolivegreen": [85, 107, 47],
-	"darkorange": [255, 140, 0],
-	"darkorchid": [153, 50, 204],
-	"darkred": [139, 0, 0],
-	"darksalmon": [233, 150, 122],
-	"darkseagreen": [143, 188, 143],
-	"darkslateblue": [72, 61, 139],
-	"darkslategray": [47, 79, 79],
-	"darkslategrey": [47, 79, 79],
-	"darkturquoise": [0, 206, 209],
-	"darkviolet": [148, 0, 211],
-	"deeppink": [255, 20, 147],
-	"deepskyblue": [0, 191, 255],
-	"dimgray": [105, 105, 105],
-	"dimgrey": [105, 105, 105],
-	"dodgerblue": [30, 144, 255],
-	"firebrick": [178, 34, 34],
-	"floralwhite": [255, 250, 240],
-	"forestgreen": [34, 139, 34],
-	"fuchsia": [255, 0, 255],
-	"gainsboro": [220, 220, 220],
-	"ghostwhite": [248, 248, 255],
-	"gold": [255, 215, 0],
-	"goldenrod": [218, 165, 32],
-	"gray": [128, 128, 128],
-	"green": [0, 128, 0],
-	"greenyellow": [173, 255, 47],
-	"grey": [128, 128, 128],
-	"honeydew": [240, 255, 240],
-	"hotpink": [255, 105, 180],
-	"indianred": [205, 92, 92],
-	"indigo": [75, 0, 130],
-	"ivory": [255, 255, 240],
-	"khaki": [240, 230, 140],
-	"lavender": [230, 230, 250],
-	"lavenderblush": [255, 240, 245],
-	"lawngreen": [124, 252, 0],
-	"lemonchiffon": [255, 250, 205],
-	"lightblue": [173, 216, 230],
-	"lightcoral": [240, 128, 128],
-	"lightcyan": [224, 255, 255],
-	"lightgoldenrodyellow": [250, 250, 210],
-	"lightgray": [211, 211, 211],
-	"lightgreen": [144, 238, 144],
-	"lightgrey": [211, 211, 211],
-	"lightpink": [255, 182, 193],
-	"lightsalmon": [255, 160, 122],
-	"lightseagreen": [32, 178, 170],
-	"lightskyblue": [135, 206, 250],
-	"lightslategray": [119, 136, 153],
-	"lightslategrey": [119, 136, 153],
-	"lightsteelblue": [176, 196, 222],
-	"lightyellow": [255, 255, 224],
-	"lime": [0, 255, 0],
-	"limegreen": [50, 205, 50],
-	"linen": [250, 240, 230],
-	"magenta": [255, 0, 255],
-	"maroon": [128, 0, 0],
-	"mediumaquamarine": [102, 205, 170],
-	"mediumblue": [0, 0, 205],
-	"mediumorchid": [186, 85, 211],
-	"mediumpurple": [147, 112, 219],
-	"mediumseagreen": [60, 179, 113],
-	"mediumslateblue": [123, 104, 238],
-	"mediumspringgreen": [0, 250, 154],
-	"mediumturquoise": [72, 209, 204],
-	"mediumvioletred": [199, 21, 133],
-	"midnightblue": [25, 25, 112],
-	"mintcream": [245, 255, 250],
-	"mistyrose": [255, 228, 225],
-	"moccasin": [255, 228, 181],
-	"navajowhite": [255, 222, 173],
-	"navy": [0, 0, 128],
-	"oldlace": [253, 245, 230],
-	"olive": [128, 128, 0],
-	"olivedrab": [107, 142, 35],
-	"orange": [255, 165, 0],
-	"orangered": [255, 69, 0],
-	"orchid": [218, 112, 214],
-	"palegoldenrod": [238, 232, 170],
-	"palegreen": [152, 251, 152],
-	"paleturquoise": [175, 238, 238],
-	"palevioletred": [219, 112, 147],
-	"papayawhip": [255, 239, 213],
-	"peachpuff": [255, 218, 185],
-	"peru": [205, 133, 63],
-	"pink": [255, 192, 203],
-	"plum": [221, 160, 221],
-	"powderblue": [176, 224, 230],
-	"purple": [128, 0, 128],
-	"rebeccapurple": [102, 51, 153],
-	"red": [255, 0, 0],
-	"rosybrown": [188, 143, 143],
-	"royalblue": [65, 105, 225],
-	"saddlebrown": [139, 69, 19],
-	"salmon": [250, 128, 114],
-	"sandybrown": [244, 164, 96],
-	"seagreen": [46, 139, 87],
-	"seashell": [255, 245, 238],
-	"sienna": [160, 82, 45],
-	"silver": [192, 192, 192],
-	"skyblue": [135, 206, 235],
-	"slateblue": [106, 90, 205],
-	"slategray": [112, 128, 144],
-	"slategrey": [112, 128, 144],
-	"snow": [255, 250, 250],
-	"springgreen": [0, 255, 127],
-	"steelblue": [70, 130, 180],
-	"tan": [210, 180, 140],
-	"teal": [0, 128, 128],
-	"thistle": [216, 191, 216],
-	"tomato": [255, 99, 71],
-	"turquoise": [64, 224, 208],
-	"violet": [238, 130, 238],
-	"wheat": [245, 222, 179],
-	"white": [255, 255, 255],
-	"whitesmoke": [245, 245, 245],
-	"yellow": [255, 255, 0],
-	"yellowgreen": [154, 205, 50]
-};
-
-/***/ }),
-/* 611 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
-
-The MIT License (MIT)
-
-Original Library
-  - Copyright (c) Marak Squires
-
-Additional functionality
- - Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-*/
-
-var colors = {};
-module['exports'] = colors;
-
-colors.themes = {};
-
-var util = __webpack_require__(3);
-var ansiStyles = colors.styles = __webpack_require__(618);
-var defineProps = Object.defineProperties;
-var newLineRegex = new RegExp(/[\r\n]+/g);
-
-colors.supportsColor = __webpack_require__(620).supportsColor;
-
-if (typeof colors.enabled === 'undefined') {
-  colors.enabled = colors.supportsColor() !== false;
-}
-
-colors.enable = function() {
-  colors.enabled = true;
-};
-
-colors.disable = function() {
-  colors.enabled = false;
-};
-
-colors.stripColors = colors.strip = function(str) {
-  return ('' + str).replace(/\x1B\[\d+m/g, '');
-};
-
-// eslint-disable-next-line no-unused-vars
-var stylize = colors.stylize = function stylize(str, style) {
-  if (!colors.enabled) {
-    return str+'';
-  }
-
-  return ansiStyles[style].open + str + ansiStyles[style].close;
-};
-
-var matchOperatorsRe = /[|\\{}()[\]^$+*?.]/g;
-var escapeStringRegexp = function(str) {
-  if (typeof str !== 'string') {
-    throw new TypeError('Expected a string');
-  }
-  return str.replace(matchOperatorsRe, '\\$&');
-};
-
-function build(_styles) {
-  var builder = function builder() {
-    return applyStyle.apply(builder, arguments);
-  };
-  builder._styles = _styles;
-  // __proto__ is used because we must return a function, but there is
-  // no way to create a function with a different prototype.
-  builder.__proto__ = proto;
-  return builder;
-}
-
-var styles = (function() {
-  var ret = {};
-  ansiStyles.grey = ansiStyles.gray;
-  Object.keys(ansiStyles).forEach(function(key) {
-    ansiStyles[key].closeRe =
-      new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');
-    ret[key] = {
-      get: function() {
-        return build(this._styles.concat(key));
-      },
-    };
-  });
-  return ret;
-})();
-
-var proto = defineProps(function colors() {}, styles);
-
-function applyStyle() {
-  var args = Array.prototype.slice.call(arguments);
-
-  var str = args.map(function(arg) {
-    if (arg != undefined && arg.constructor === String) {
-      return arg;
-    } else {
-      return util.inspect(arg);
-    }
-  }).join(' ');
-
-  if (!colors.enabled || !str) {
-    return str;
-  }
-
-  var newLinesPresent = str.indexOf('\n') != -1;
-
-  var nestedStyles = this._styles;
-
-  var i = nestedStyles.length;
-  while (i--) {
-    var code = ansiStyles[nestedStyles[i]];
-    str = code.open + str.replace(code.closeRe, code.open) + code.close;
-    if (newLinesPresent) {
-      str = str.replace(newLineRegex, function(match) {
-        return code.close + match + code.open;
-      });
-    }
-  }
-
-  return str;
-}
-
-colors.setTheme = function(theme) {
-  if (typeof theme === 'string') {
-    console.log('colors.setTheme now only accepts an object, not a string.  ' +
-      'If you are trying to set a theme from a file, it is now your (the ' +
-      'caller\'s) responsibility to require the file.  The old syntax ' +
-      'looked like colors.setTheme(__dirname + ' +
-      '\'/../themes/generic-logging.js\'); The new syntax looks like '+
-      'colors.setTheme(require(__dirname + ' +
-      '\'/../themes/generic-logging.js\'));');
-    return;
-  }
-  for (var style in theme) {
-    (function(style) {
-      colors[style] = function(str) {
-        if (typeof theme[style] === 'object') {
-          var out = str;
-          for (var i in theme[style]) {
-            out = colors[theme[style][i]](out);
-          }
-          return out;
-        }
-        return colors[theme[style]](str);
-      };
-    })(style);
-  }
-};
-
-function init() {
-  var ret = {};
-  Object.keys(styles).forEach(function(name) {
-    ret[name] = {
-      get: function() {
-        return build([name]);
-      },
-    };
-  });
-  return ret;
-}
-
-var sequencer = function sequencer(map, str) {
-  var exploded = str.split('');
-  exploded = exploded.map(map);
-  return exploded.join('');
-};
-
-// custom formatter methods
-colors.trap = __webpack_require__(612);
-colors.zalgo = __webpack_require__(613);
-
-// maps
-colors.maps = {};
-colors.maps.america = __webpack_require__(614)(colors);
-colors.maps.zebra = __webpack_require__(617)(colors);
-colors.maps.rainbow = __webpack_require__(615)(colors);
-colors.maps.random = __webpack_require__(616)(colors);
-
-for (var map in colors.maps) {
-  (function(map) {
-    colors[map] = function(str) {
-      return sequencer(colors.maps[map], str);
-    };
-  })(map);
-}
-
-defineProps(colors, init());
-
-
-/***/ }),
-/* 612 */
-/***/ (function(module, exports) {
-
-module['exports'] = function runTheTrap(text, options) {
-  var result = '';
-  text = text || 'Run the trap, drop the bass';
-  text = text.split('');
-  var trap = {
-    a: ['\u0040', '\u0104', '\u023a', '\u0245', '\u0394', '\u039b', '\u0414'],
-    b: ['\u00df', '\u0181', '\u0243', '\u026e', '\u03b2', '\u0e3f'],
-    c: ['\u00a9', '\u023b', '\u03fe'],
-    d: ['\u00d0', '\u018a', '\u0500', '\u0501', '\u0502', '\u0503'],
-    e: ['\u00cb', '\u0115', '\u018e', '\u0258', '\u03a3', '\u03be', '\u04bc',
-         '\u0a6c'],
-    f: ['\u04fa'],
-    g: ['\u0262'],
-    h: ['\u0126', '\u0195', '\u04a2', '\u04ba', '\u04c7', '\u050a'],
-    i: ['\u0f0f'],
-    j: ['\u0134'],
-    k: ['\u0138', '\u04a0', '\u04c3', '\u051e'],
-    l: ['\u0139'],
-    m: ['\u028d', '\u04cd', '\u04ce', '\u0520', '\u0521', '\u0d69'],
-    n: ['\u00d1', '\u014b', '\u019d', '\u0376', '\u03a0', '\u048a'],
-    o: ['\u00d8', '\u00f5', '\u00f8', '\u01fe', '\u0298', '\u047a', '\u05dd',
-         '\u06dd', '\u0e4f'],
-    p: ['\u01f7', '\u048e'],
-    q: ['\u09cd'],
-    r: ['\u00ae', '\u01a6', '\u0210', '\u024c', '\u0280', '\u042f'],
-    s: ['\u00a7', '\u03de', '\u03df', '\u03e8'],
-    t: ['\u0141', '\u0166', '\u0373'],
-    u: ['\u01b1', '\u054d'],
-    v: ['\u05d8'],
-    w: ['\u0428', '\u0460', '\u047c', '\u0d70'],
-    x: ['\u04b2', '\u04fe', '\u04fc', '\u04fd'],
-    y: ['\u00a5', '\u04b0', '\u04cb'],
-    z: ['\u01b5', '\u0240'],
-  };
-  text.forEach(function(c) {
-    c = c.toLowerCase();
-    var chars = trap[c] || [' '];
-    var rand = Math.floor(Math.random() * chars.length);
-    if (typeof trap[c] !== 'undefined') {
-      result += trap[c][rand];
-    } else {
-      result += c;
-    }
-  });
-  return result;
-};
-
-
-/***/ }),
-/* 613 */
-/***/ (function(module, exports) {
-
-// please no
-module['exports'] = function zalgo(text, options) {
-  text = text || '   he is here   ';
-  var soul = {
-    'up': [
-      '̍', '̎', '̄', '̅',
-      '̿', '̑', '̆', '̐',
-      '͒', '͗', '͑', '̇',
-      '̈', '̊', '͂', '̓',
-      '̈', '͊', '͋', '͌',
-      '̃', '̂', '̌', '͐',
-      '̀', '́', '̋', '̏',
-      '̒', '̓', '̔', '̽',
-      '̉', 'ͣ', 'ͤ', 'ͥ',
-      'ͦ', 'ͧ', 'ͨ', 'ͩ',
-      'ͪ', 'ͫ', 'ͬ', 'ͭ',
-      'ͮ', 'ͯ', '̾', '͛',
-      '͆', '̚',
-    ],
-    'down': [
-      '̖', '̗', '̘', '̙',
-      '̜', '̝', '̞', '̟',
-      '̠', '̤', '̥', '̦',
-      '̩', '̪', '̫', '̬',
-      '̭', '̮', '̯', '̰',
-      '̱', '̲', '̳', '̹',
-      '̺', '̻', '̼', 'ͅ',
-      '͇', '͈', '͉', '͍',
-      '͎', '͓', '͔', '͕',
-      '͖', '͙', '͚', '̣',
-    ],
-    'mid': [
-      '̕', '̛', '̀', '́',
-      '͘', '̡', '̢', '̧',
-      '̨', '̴', '̵', '̶',
-      '͜', '͝', '͞',
-      '͟', '͠', '͢', '̸',
-      '̷', '͡', ' ҉',
-    ],
-  };
-  var all = [].concat(soul.up, soul.down, soul.mid);
-
-  function randomNumber(range) {
-    var r = Math.floor(Math.random() * range);
-    return r;
-  }
-
-  function isChar(character) {
-    var bool = false;
-    all.filter(function(i) {
-      bool = (i === character);
-    });
-    return bool;
-  }
-
-
-  function heComes(text, options) {
-    var result = '';
-    var counts;
-    var l;
-    options = options || {};
-    options['up'] =
-      typeof options['up'] !== 'undefined' ? options['up'] : true;
-    options['mid'] =
-      typeof options['mid'] !== 'undefined' ? options['mid'] : true;
-    options['down'] =
-      typeof options['down'] !== 'undefined' ? options['down'] : true;
-    options['size'] =
-      typeof options['size'] !== 'undefined' ? options['size'] : 'maxi';
-    text = text.split('');
-    for (l in text) {
-      if (isChar(l)) {
-        continue;
-      }
-      result = result + text[l];
-      counts = {'up': 0, 'down': 0, 'mid': 0};
-      switch (options.size) {
-      case 'mini':
-        counts.up = randomNumber(8);
-        counts.mid = randomNumber(2);
-        counts.down = randomNumber(8);
-        break;
-      case 'maxi':
-        counts.up = randomNumber(16) + 3;
-        counts.mid = randomNumber(4) + 1;
-        counts.down = randomNumber(64) + 3;
-        break;
-      default:
-        counts.up = randomNumber(8) + 1;
-        counts.mid = randomNumber(6) / 2;
-        counts.down = randomNumber(8) + 1;
-        break;
-      }
-
-      var arr = ['up', 'mid', 'down'];
-      for (var d in arr) {
-        var index = arr[d];
-        for (var i = 0; i <= counts[index]; i++) {
-          if (options[index]) {
-            result = result + soul[index][randomNumber(soul[index].length)];
-          }
-        }
-      }
-    }
-    return result;
-  }
-  // don't summon him
-  return heComes(text, options);
-};
-
-
-
-/***/ }),
-/* 614 */
-/***/ (function(module, exports) {
-
-module['exports'] = function(colors) {
-  return function(letter, i, exploded) {
-    if (letter === ' ') return letter;
-    switch (i%3) {
-      case 0: return colors.red(letter);
-      case 1: return colors.white(letter);
-      case 2: return colors.blue(letter);
-    }
-  };
-};
-
-
-/***/ }),
-/* 615 */
-/***/ (function(module, exports) {
-
-module['exports'] = function(colors) {
-  // RoY G BiV
-  var rainbowColors = ['red', 'yellow', 'green', 'blue', 'magenta'];
-  return function(letter, i, exploded) {
-    if (letter === ' ') {
-      return letter;
-    } else {
-      return colors[rainbowColors[i++ % rainbowColors.length]](letter);
-    }
-  };
-};
-
-
-
-/***/ }),
-/* 616 */
-/***/ (function(module, exports) {
-
-module['exports'] = function(colors) {
-  var available = ['underline', 'inverse', 'grey', 'yellow', 'red', 'green',
-    'blue', 'white', 'cyan', 'magenta'];
-  return function(letter, i, exploded) {
-    return letter === ' ' ? letter :
-      colors[
-        available[Math.round(Math.random() * (available.length - 2))]
-      ](letter);
-  };
-};
-
-
-/***/ }),
-/* 617 */
-/***/ (function(module, exports) {
-
-module['exports'] = function(colors) {
-  return function(letter, i, exploded) {
-    return i % 2 === 0 ? letter : colors.inverse(letter);
-  };
-};
-
-
-/***/ }),
-/* 618 */
-/***/ (function(module, exports) {
-
-/*
-The MIT License (MIT)
-
-Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-*/
-
-var styles = {};
-module['exports'] = styles;
-
-var codes = {
-  reset: [0, 0],
-
-  bold: [1, 22],
-  dim: [2, 22],
-  italic: [3, 23],
-  underline: [4, 24],
-  inverse: [7, 27],
-  hidden: [8, 28],
-  strikethrough: [9, 29],
-
-  black: [30, 39],
-  red: [31, 39],
-  green: [32, 39],
-  yellow: [33, 39],
-  blue: [34, 39],
-  magenta: [35, 39],
-  cyan: [36, 39],
-  white: [37, 39],
-  gray: [90, 39],
-  grey: [90, 39],
-
-  bgBlack: [40, 49],
-  bgRed: [41, 49],
-  bgGreen: [42, 49],
-  bgYellow: [43, 49],
-  bgBlue: [44, 49],
-  bgMagenta: [45, 49],
-  bgCyan: [46, 49],
-  bgWhite: [47, 49],
-
-  // legacy styles for colors pre v1.0.0
-  blackBG: [40, 49],
-  redBG: [41, 49],
-  greenBG: [42, 49],
-  yellowBG: [43, 49],
-  blueBG: [44, 49],
-  magentaBG: [45, 49],
-  cyanBG: [46, 49],
-  whiteBG: [47, 49],
-
-};
-
-Object.keys(codes).forEach(function(key) {
-  var val = codes[key];
-  var style = styles[key] = [];
-  style.open = '\u001b[' + val[0] + 'm';
-  style.close = '\u001b[' + val[1] + 'm';
-});
-
-
-/***/ }),
-/* 619 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*
-MIT License
-
-Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-*/
-
-
-
-module.exports = function(flag, argv) {
-  argv = argv || process.argv;
-
-  var terminatorPos = argv.indexOf('--');
-  var prefix = /^-{1,2}/.test(flag) ? '' : '--';
-  var pos = argv.indexOf(prefix + flag);
-
-  return pos !== -1 && (terminatorPos === -1 ? true : pos < terminatorPos);
-};
-
-
-/***/ }),
-/* 620 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*
-The MIT License (MIT)
-
-Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-
-*/
-
-
-
-var os = __webpack_require__(46);
-var hasFlag = __webpack_require__(619);
-
-var env = process.env;
-
-var forceColor = void 0;
-if (hasFlag('no-color') || hasFlag('no-colors') || hasFlag('color=false')) {
-  forceColor = false;
-} else if (hasFlag('color') || hasFlag('colors') || hasFlag('color=true')
-           || hasFlag('color=always')) {
-  forceColor = true;
-}
-if ('FORCE_COLOR' in env) {
-  forceColor = env.FORCE_COLOR.length === 0
-    || parseInt(env.FORCE_COLOR, 10) !== 0;
-}
-
-function translateLevel(level) {
-  if (level === 0) {
-    return false;
-  }
-
-  return {
-    level: level,
-    hasBasic: true,
-    has256: level >= 2,
-    has16m: level >= 3,
-  };
-}
-
-function supportsColor(stream) {
-  if (forceColor === false) {
-    return 0;
-  }
-
-  if (hasFlag('color=16m') || hasFlag('color=full')
-      || hasFlag('color=truecolor')) {
-    return 3;
-  }
-
-  if (hasFlag('color=256')) {
-    return 2;
-  }
-
-  if (stream && !stream.isTTY && forceColor !== true) {
-    return 0;
-  }
-
-  var min = forceColor ? 1 : 0;
-
-  if (process.platform === 'win32') {
-    // Node.js 7.5.0 is the first version of Node.js to include a patch to
-    // libuv that enables 256 color output on Windows. Anything earlier and it
-    // won't work. However, here we target Node.js 8 at minimum as it is an LTS
-    // release, and Node.js 7 is not. Windows 10 build 10586 is the first
-    // Windows release that supports 256 colors. Windows 10 build 14931 is the
-    // first release that supports 16m/TrueColor.
-    var osRelease = os.release().split('.');
-    if (Number(process.versions.node.split('.')[0]) >= 8
-        && Number(osRelease[0]) >= 10 && Number(osRelease[2]) >= 10586) {
-      return Number(osRelease[2]) >= 14931 ? 3 : 2;
-    }
-
-    return 1;
-  }
-
-  if ('CI' in env) {
-    if (['TRAVIS', 'CIRCLECI', 'APPVEYOR', 'GITLAB_CI'].some(function(sign) {
-      return sign in env;
-    }) || env.CI_NAME === 'codeship') {
-      return 1;
-    }
-
-    return min;
-  }
-
-  if ('TEAMCITY_VERSION' in env) {
-    return (/^(9\.(0*[1-9]\d*)\.|\d{2,}\.)/.test(env.TEAMCITY_VERSION) ? 1 : 0
-    );
-  }
-
-  if ('TERM_PROGRAM' in env) {
-    var version = parseInt((env.TERM_PROGRAM_VERSION || '').split('.')[0], 10);
-
-    switch (env.TERM_PROGRAM) {
-      case 'iTerm.app':
-        return version >= 3 ? 3 : 2;
-      case 'Hyper':
-        return 3;
-      case 'Apple_Terminal':
-        return 2;
-      // No default
-    }
-  }
-
-  if (/-256(color)?$/i.test(env.TERM)) {
-    return 2;
-  }
-
-  if (/^screen|^xterm|^vt100|^rxvt|color|ansi|cygwin|linux/i.test(env.TERM)) {
-    return 1;
-  }
-
-  if ('COLORTERM' in env) {
-    return 1;
-  }
-
-  if (env.TERM === 'dumb') {
-    return min;
-  }
-
-  return min;
-}
-
-function getSupportLevel(stream) {
-  var level = supportsColor(stream);
-  return translateLevel(level);
-}
-
-module.exports = {
-  supportsColor: getSupportLevel,
-  stdout: getSupportLevel(process.stdout),
-  stderr: getSupportLevel(process.stderr),
-};
-
-
-/***/ }),
-/* 621 */
-/***/ (function(module, exports, __webpack_require__) {
-
-//
-// Remark: Requiring this file will use the "safe" colors API,
-// which will not touch String.prototype.
-//
-//   var colors = require('colors/safe');
-//   colors.red("foo")
-//
-//
-var colors = __webpack_require__(611);
-module['exports'] = colors;
-
-
-/***/ }),
-/* 622 */
-/***/ (function(module, exports) {
-
-module.exports = defer;
-
-/**
- * Runs provided function on next iteration of the event loop
- *
- * @param {function} fn - function to run
- */
-function defer(fn)
-{
-  var nextTick = typeof setImmediate == 'function'
-    ? setImmediate
-    : (
-      typeof process == 'object' && typeof process.nextTick == 'function'
-      ? process.nextTick
-      : null
-    );
-
-  if (nextTick)
-  {
-    nextTick(fn);
-  }
-  else
-  {
-    setTimeout(fn, 0);
-  }
-}
-
-
-/***/ }),
-/* 623 */
-/***/ (function(module, exports, __webpack_require__) {
-
-__webpack_require__(627);
-module.exports = __webpack_require__(31).Object.assign;
-
-
-/***/ }),
-/* 624 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-// 19.1.2.1 Object.assign(target, source, ...)
-var getKeys = __webpack_require__(171);
-var gOPS = __webpack_require__(625);
-var pIE = __webpack_require__(626);
-var toObject = __webpack_require__(172);
-var IObject = __webpack_require__(170);
-var $assign = Object.assign;
-
-// should work with symbols and should have deterministic property order (V8 bug)
-module.exports = !$assign || __webpack_require__(112)(function () {
-  var A = {};
-  var B = {};
-  // eslint-disable-next-line no-undef
-  var S = Symbol();
-  var K = 'abcdefghijklmnopqrst';
-  A[S] = 7;
-  K.split('').forEach(function (k) { B[k] = k; });
-  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
-}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
-  var T = toObject(target);
-  var aLen = arguments.length;
-  var index = 1;
-  var getSymbols = gOPS.f;
-  var isEnum = pIE.f;
-  while (aLen > index) {
-    var S = IObject(arguments[index++]);
-    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
-    var length = keys.length;
-    var j = 0;
-    var key;
-    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
-  } return T;
-} : $assign;
-
-
-/***/ }),
-/* 625 */
-/***/ (function(module, exports) {
-
-exports.f = Object.getOwnPropertySymbols;
-
-
-/***/ }),
-/* 626 */
-/***/ (function(module, exports) {
-
-exports.f = {}.propertyIsEnumerable;
-
-
-/***/ }),
-/* 627 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// 19.1.3.1 Object.assign(target, source)
-var $export = __webpack_require__(60);
-
-$export($export.S + $export.F, 'Object', { assign: __webpack_require__(624) });
-
-
-/***/ }),
-/* 628 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var arrayFindIndex = __webpack_require__(511);
-
-module.exports = function () {
-	var unhandledRejections = [];
-
-	function onUnhandledRejection(reason, promise) {
-		unhandledRejections.push({reason: reason, promise: promise});
-	}
-
-	function onRejectionHandled(promise) {
-		var index = arrayFindIndex(unhandledRejections, function (x) {
-			return x.promise === promise;
-		});
-
-		unhandledRejections.splice(index, 1);
-	}
-
-	function currentlyUnhandled() {
-		return unhandledRejections.map(function (entry) {
-			return {
-				reason: entry.reason,
-				promise: entry.promise
-			};
-		});
-	}
-
-	return {
-		onUnhandledRejection: onUnhandledRejection,
-		onRejectionHandled: onRejectionHandled,
-		currentlyUnhandled: currentlyUnhandled
-	};
-};
-
-
-/***/ }),
-/* 629 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var core = __webpack_require__(628);
-
-module.exports = function (p) {
-	p = p || process;
-	var c = core();
-
-	p.on('unhandledRejection', c.onUnhandledRejection);
-	p.on('rejectionHandled', c.onRejectionHandled);
-
-	return c.currentlyUnhandled;
-};
-
-
-/***/ }),
-/* 630 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var token = '%[a-f0-9]{2}';
-var singleMatcher = new RegExp(token, 'gi');
-var multiMatcher = new RegExp('(' + token + ')+', 'gi');
-
-function decodeComponents(components, split) {
-	try {
-		// Try to decode the entire string first
-		return decodeURIComponent(components.join(''));
-	} catch (err) {
-		// Do nothing
-	}
-
-	if (components.length === 1) {
-		return components;
-	}
-
-	split = split || 1;
-
-	// Split the array in 2 parts
-	var left = components.slice(0, split);
-	var right = components.slice(split);
-
-	return Array.prototype.concat.call([], decodeComponents(left), decodeComponents(right));
-}
-
-function decode(input) {
-	try {
-		return decodeURIComponent(input);
-	} catch (err) {
-		var tokens = input.match(singleMatcher);
-
-		for (var i = 1; i < tokens.length; i++) {
-			input = decodeComponents(tokens, i).join('');
-
-			tokens = input.match(singleMatcher);
-		}
-
-		return input;
-	}
-}
-
-function customDecodeURIComponent(input) {
-	// Keep track of all the replacements and prefill the map with the `BOM`
-	var replaceMap = {
-		'%FE%FF': '\uFFFD\uFFFD',
-		'%FF%FE': '\uFFFD\uFFFD'
-	};
-
-	var match = multiMatcher.exec(input);
-	while (match) {
-		try {
-			// Decode as big chunks as possible
-			replaceMap[match[0]] = decodeURIComponent(match[0]);
-		} catch (err) {
-			var result = decode(match[0]);
-
-			if (result !== match[0]) {
-				replaceMap[match[0]] = result;
-			}
-		}
-
-		match = multiMatcher.exec(input);
-	}
-
-	// Add `%C2` at the end of the map to make sure it does not replace the combinator before everything else
-	replaceMap['%C2'] = '\uFFFD';
-
-	var entries = Object.keys(replaceMap);
-
-	for (var i = 0; i < entries.length; i++) {
-		// Replace all decoded components
-		var key = entries[i];
-		input = input.replace(new RegExp(key, 'g'), replaceMap[key]);
-	}
-
-	return input;
-}
-
-module.exports = function (encodedURI) {
-	if (typeof encodedURI !== 'string') {
-		throw new TypeError('Expected `encodedURI` to be of type `string`, got `' + typeof encodedURI + '`');
-	}
-
-	try {
-		encodedURI = encodedURI.replace(/\+/g, ' ');
-
-		// Try the built in decoder first
-		return decodeURIComponent(encodedURI);
-	} catch (err) {
-		// Fallback to a more advanced decoder
-		return customDecodeURIComponent(encodedURI);
-	}
-};
-
-
-/***/ }),
-/* 631 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var pSlice = Array.prototype.slice;
-var objectKeys = __webpack_require__(633);
-var isArguments = __webpack_require__(632);
-
-var deepEqual = module.exports = function (actual, expected, opts) {
-  if (!opts) opts = {};
-  // 7.1. All identical values are equivalent, as determined by ===.
-  if (actual === expected) {
-    return true;
-
-  } else if (actual instanceof Date && expected instanceof Date) {
-    return actual.getTime() === expected.getTime();
-
-  // 7.3. Other pairs that do not both pass typeof value == 'object',
-  // equivalence is determined by ==.
-  } else if (!actual || !expected || typeof actual != 'object' && typeof expected != 'object') {
-    return opts.strict ? actual === expected : actual == expected;
-
-  // 7.4. For all other Object pairs, including Array objects, equivalence is
-  // determined by having the same number of owned properties (as verified
-  // with Object.prototype.hasOwnProperty.call), the same set of keys
-  // (although not necessarily the same order), equivalent values for every
-  // corresponding key, and an identical 'prototype' property. Note: this
-  // accounts for both named and indexed properties on Arrays.
-  } else {
-    return objEquiv(actual, expected, opts);
-  }
-}
-
-function isUndefinedOrNull(value) {
-  return value === null || value === undefined;
-}
-
-function isBuffer (x) {
-  if (!x || typeof x !== 'object' || typeof x.length !== 'number') return false;
-  if (typeof x.copy !== 'function' || typeof x.slice !== 'function') {
-    return false;
-  }
-  if (x.length > 0 && typeof x[0] !== 'number') return false;
-  return true;
-}
-
-function objEquiv(a, b, opts) {
-  var i, key;
-  if (isUndefinedOrNull(a) || isUndefinedOrNull(b))
-    return false;
-  // an identical 'prototype' property.
-  if (a.prototype !== b.prototype) return false;
-  //~~~I've managed to break Object.keys through screwy arguments passing.
-  //   Converting to array solves the problem.
-  if (isArguments(a)) {
-    if (!isArguments(b)) {
-      return false;
-    }
-    a = pSlice.call(a);
-    b = pSlice.call(b);
-    return deepEqual(a, b, opts);
-  }
-  if (isBuffer(a)) {
-    if (!isBuffer(b)) {
-      return false;
-    }
-    if (a.length !== b.length) return false;
-    for (i = 0; i < a.length; i++) {
-      if (a[i] !== b[i]) return false;
-    }
-    return true;
-  }
-  try {
-    var ka = objectKeys(a),
-        kb = objectKeys(b);
-  } catch (e) {//happens when one is a string literal and the other isn't
-    return false;
-  }
-  // having the same number of owned properties (keys incorporates
-  // hasOwnProperty)
-  if (ka.length != kb.length)
-    return false;
-  //the same set of keys (although not necessarily the same order),
-  ka.sort();
-  kb.sort();
-  //~~~cheap key test
-  for (i = ka.length - 1; i >= 0; i--) {
-    if (ka[i] != kb[i])
-      return false;
-  }
-  //equivalent values for every corresponding key, and
-  //~~~possibly expensive deep test
-  for (i = ka.length - 1; i >= 0; i--) {
-    key = ka[i];
-    if (!deepEqual(a[key], b[key], opts)) return false;
-  }
-  return typeof a === typeof b;
-}
-
-
-/***/ }),
-/* 632 */
-/***/ (function(module, exports) {
-
-var supportsArgumentsClass = (function(){
-  return Object.prototype.toString.call(arguments)
-})() == '[object Arguments]';
-
-exports = module.exports = supportsArgumentsClass ? supported : unsupported;
-
-exports.supported = supported;
-function supported(object) {
-  return Object.prototype.toString.call(object) == '[object Arguments]';
-};
-
-exports.unsupported = unsupported;
-function unsupported(object){
-  return object &&
-    typeof object == 'object' &&
-    typeof object.length == 'number' &&
-    Object.prototype.hasOwnProperty.call(object, 'callee') &&
-    !Object.prototype.propertyIsEnumerable.call(object, 'callee') ||
-    false;
-};
-
-
-/***/ }),
-/* 633 */
-/***/ (function(module, exports) {
-
-exports = module.exports = typeof Object.keys === 'function'
-  ? Object.keys : shim;
-
-exports.shim = shim;
-function shim (obj) {
-  var keys = [];
-  for (var key in obj) keys.push(key);
-  return keys;
-}
-
-
-/***/ }),
-/* 634 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stream = __webpack_require__(23).Stream;
-var util = __webpack_require__(3);
-
-module.exports = DelayedStream;
-function DelayedStream() {
-  this.source = null;
-  this.dataSize = 0;
-  this.maxDataSize = 1024 * 1024;
-  this.pauseStream = true;
-
-  this._maxDataSizeExceeded = false;
-  this._released = false;
-  this._bufferedEvents = [];
-}
-util.inherits(DelayedStream, Stream);
-
-DelayedStream.create = function(source, options) {
-  var delayedStream = new this();
-
-  options = options || {};
-  for (var option in options) {
-    delayedStream[option] = options[option];
-  }
-
-  delayedStream.source = source;
-
-  var realEmit = source.emit;
-  source.emit = function() {
-    delayedStream._handleEmit(arguments);
-    return realEmit.apply(source, arguments);
-  };
-
-  source.on('error', function() {});
-  if (delayedStream.pauseStream) {
-    source.pause();
-  }
-
-  return delayedStream;
-};
-
-Object.defineProperty(DelayedStream.prototype, 'readable', {
-  configurable: true,
-  enumerable: true,
-  get: function() {
-    return this.source.readable;
-  }
-});
-
-DelayedStream.prototype.setEncoding = function() {
-  return this.source.setEncoding.apply(this.source, arguments);
-};
-
-DelayedStream.prototype.resume = function() {
-  if (!this._released) {
-    this.release();
-  }
-
-  this.source.resume();
-};
-
-DelayedStream.prototype.pause = function() {
-  this.source.pause();
-};
-
-DelayedStream.prototype.release = function() {
-  this._released = true;
-
-  this._bufferedEvents.forEach(function(args) {
-    this.emit.apply(this, args);
-  }.bind(this));
-  this._bufferedEvents = [];
-};
-
-DelayedStream.prototype.pipe = function() {
-  var r = Stream.prototype.pipe.apply(this, arguments);
-  this.resume();
-  return r;
-};
-
-DelayedStream.prototype._handleEmit = function(args) {
-  if (this._released) {
-    this.emit.apply(this, args);
-    return;
-  }
-
-  if (args[0] === 'data') {
-    this.dataSize += args[1].length;
-    this._checkIfMaxDataSizeExceeded();
-  }
-
-  this._bufferedEvents.push(args);
-};
-
-DelayedStream.prototype._checkIfMaxDataSizeExceeded = function() {
-  if (this._maxDataSizeExceeded) {
-    return;
-  }
-
-  if (this.dataSize <= this.maxDataSize) {
-    return;
-  }
-
-  this._maxDataSizeExceeded = true;
-  var message =
-    'DelayedStream#maxDataSize of ' + this.maxDataSize + ' bytes exceeded.'
-  this.emit('error', new Error(message));
-};
-
-
-/***/ }),
-/* 635 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// detect either spaces or tabs but not both to properly handle tabs
-// for indentation and spaces for alignment
-const INDENT_RE = /^(?:( )+|\t+)/;
-
-function getMostUsed(indents) {
-	let result = 0;
-	let maxUsed = 0;
-	let maxWeight = 0;
-
-	for (const entry of indents) {
-		// TODO: use destructuring when targeting Node.js 6
-		const key = entry[0];
-		const val = entry[1];
-
-		const u = val[0];
-		const w = val[1];
-
-		if (u > maxUsed || (u === maxUsed && w > maxWeight)) {
-			maxUsed = u;
-			maxWeight = w;
-			result = Number(key);
-		}
-	}
-
-	return result;
-}
-
-module.exports = str => {
-	if (typeof str !== 'string') {
-		throw new TypeError('Expected a string');
-	}
-
-	// used to see if tabs or spaces are the most used
-	let tabs = 0;
-	let spaces = 0;
-
-	// remember the size of previous line's indentation
-	let prev = 0;
-
-	// remember how many indents/unindents as occurred for a given size
-	// and how much lines follow a given indentation
-	//
-	// indents = {
-	//    3: [1, 0],
-	//    4: [1, 5],
-	//    5: [1, 0],
-	//   12: [1, 0],
-	// }
-	const indents = new Map();
-
-	// pointer to the array of last used indent
-	let current;
-
-	// whether the last action was an indent (opposed to an unindent)
-	let isIndent;
-
-	for (const line of str.split(/\n/g)) {
-		if (!line) {
-			// ignore empty lines
-			continue;
-		}
-
-		let indent;
-		const matches = line.match(INDENT_RE);
-
-		if (matches) {
-			indent = matches[0].length;
-
-			if (matches[1]) {
-				spaces++;
-			} else {
-				tabs++;
-			}
-		} else {
-			indent = 0;
-		}
-
-		const diff = indent - prev;
-		prev = indent;
-
-		if (diff) {
-			// an indent or unindent has been detected
-
-			isIndent = diff > 0;
-
-			current = indents.get(isIndent ? diff : -diff);
-
-			if (current) {
-				current[0]++;
-			} else {
-				current = [1, 0];
-				indents.set(diff, current);
-			}
-		} else if (current) {
-			// if the last action was an indent, increment the weight
-			current[1] += Number(isIndent);
-		}
-	}
-
-	const amount = getMostUsed(indents);
-
-	let type;
-	let indent;
-	if (!amount) {
-		type = null;
-		indent = '';
-	} else if (spaces >= tabs) {
-		type = 'space';
-		indent = ' '.repeat(amount);
-	} else {
-		type = 'tab';
-		indent = '\t'.repeat(amount);
-	}
-
-	return {
-		amount,
-		type,
-		indent
-	};
-};
-
-
-/***/ }),
-/* 636 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
-* Copyright (c) 2013, Yahoo! Inc. All rights reserved.
-* Copyrights licensed under the New BSD License.
-* See the accompanying LICENSE file for terms.
-*/
-
-var CacheObject = function (conf) {
-    conf = conf || {};
-    conf.ttl = parseInt(conf.ttl, 10) || 300; //0 is not permissible
-    conf.cachesize = parseInt(conf.cachesize, 10) || 1000; //0 is not permissible
-    
-    this.ttl = conf.ttl * 1000;
-    this.max = conf.cachesize;
-
-    this.count = 0;
-    this.data = {};
-    var next = __webpack_require__(512);
-
-    this.set = function (key, value, callback) {
-        var self = this;
-        next(function () {
-            if (self.data[key]) {
-                if (self.data[key].newer) {
-                    if (self.data[key].older) {
-                        self.data[key].newer.older = self.data[key].older;
-                        self.data[key].older.newer = self.data[key].newer;
-                    } else {
-                        self.tail = self.data[key].newer;
-                        delete self.tail.older;
-                    }
-
-                    self.data[key].older = self.head;
-                    self.head.newer = self.data[key];
-                    delete self.data[key].newer;
-                    self.head = self.data[key];
-                }
-
-                self.head.val = value;
-                self.head.hit = 0;
-                self.head.ts = Date.now();
-            } else {
-                // key is not exist
-                self.data[key] = {
-                    "key" : key,
-                    "val" : value,
-                    "hit" : 0,
-                    "ts" : Date.now()
-                };
-
-                if (!self.head) {
-                    // cache is empty
-                    self.head = self.data[key];
-                    self.tail = self.data[key];
-                } else {
-                    // insert the new entry to the front
-                    self.head.newer = self.data[key];
-                    self.data[key].older = self.head;
-                    self.head = self.data[key];
-                }
-
-                if (self.count >= self.max) {
-                    // remove the tail
-                    var temp = self.tail;
-                    self.tail = self.tail.newer;
-                    delete self.tail.next;
-                    delete self.data[temp.key];
-                } else {
-                    self.count = self.count + 1;
-                }
-            }
-            /* jshint -W030 */
-            callback && callback(null, value);
-        });
-    };
-
-    this.get = function (key, callback) {
-        var self = this;
-        if (!callback) {
-            throw('cache.get callback is required.');
-        }
-
-        next(function () {
-            if (!self.data[key]) {
-                return callback(null, undefined);
-            }
-            var value;
-            if (conf.ttl !== 0 && (Date.now() - self.data[key].ts) >= self.ttl) {
-                if (self.data[key].newer) {
-                    if (self.data[key].older) {
-                        // in the middle of the list
-                        self.data[key].newer.older = self.data[key].older;
-                        self.data[key].older.newer = self.data[key].newer;
-                    } else {
-                        // tail
-                        self.tail = self.data[key].newer;
-                        delete self.tail.older;
-                    }
-                } else {
-                    // the first item
-                    if (self.data[key].older) {
-                        self.head = self.data[key].older;
-                        delete self.head.newer;
-                    } else {
-                        // 1 items
-                        delete self.head;
-                        delete self.tail;
-                    }
-                }
-
-                delete self.data[key];
-                self.count = self.count - 1;
-            } else {
-                self.data[key].hit = self.data[key].hit + 1;
-                value = self.data[key].val;
-            }
-            callback(null, value);
-        });
-    };
-};
-
-module.exports = CacheObject;
-
-
-/***/ }),
-/* 637 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
-* Copyright (c) 2013, Yahoo! Inc. All rights reserved.
-* Copyrights licensed under the New BSD License.
-* See the accompanying LICENSE file for terms.
-*/
-
-var CacheObject = __webpack_require__(636),
-    deepCopy = __webpack_require__(749),
-    dns = __webpack_require__(964);
-
-
-// original function storage
-var EnhanceDns = function (conf) {
-        conf = conf || {};
-        conf.ttl = parseInt(conf.ttl, 10) || 300; //0 is not allowed ie it ttl is set to 0, it will take the default
-        conf.cachesize = parseInt(conf.cachesize, 10); //0 is allowed but it will disable the caching
-
-        if (isNaN(conf.cachesize)) {
-            conf.cachesize = 1000; //set default cache size to 1000 records max
-        }
-        if (!conf.enable || conf.cachesize <= 0 || dns.internalCache) {
-            //cache already exists, means this code has already execute ie method are already overwritten
-            return dns;
-        }
-        
-        // original function storage
-        var backup_object = {
-                lookup : dns.lookup,
-                resolve : dns.resolve,
-                resolve4 : dns.resolve4,
-                resolve6 : dns.resolve6,
-                resolveMx : dns.resolveMx,
-                resolveTxt : dns.resolveTxt,
-                resolveSrv : dns.resolveSrv,
-                resolveNs : dns.resolveNs,
-                resolveCname : dns.resolveCname,
-                reverse : dns.reverse
-            },
-            // cache storage instance
-            cache = conf.cache ? /*istanbul ignore next*/ new conf.cache(conf) : new CacheObject(conf);
-        
-        // insert cache object to the instance
-        dns.internalCache = cache;
-
-        // override dns.lookup method
-        dns.lookup = function (domain, options, callback) {
-            var family = 0;
-            var hints = 0;
-            var all = false;
-            if (arguments.length === 2) {
-                callback = options;
-                options = family;
-            } else if (typeof options === 'object') {
-                if (options.family) {
-                    family = +options.family;
-                    if (family !== 4 && family !== 6) {
-                        callback(new Error('invalid argument: `family` must be 4 or 6'));
-                        return;
-                    }
-                }
-                /*istanbul ignore next - "hints" require node 0.12+*/
-                if (options.hints) {
-                    hints = +options.hints;
-                }
-                all = (options.all === true);
-            } else if (options) {
-                family = +options;
-                if (family !== 4 && family !== 6) {
-                    callback(new Error('invalid argument: `family` must be 4 or 6'));
-                    return;
-                }
-            }
-
-            cache.get('lookup_' + domain + '_' + family + '_' + hints + '_' + all, function (error, record) {
-                if (record) {
-                    /*istanbul ignore next - "all" option require node 4+*/
-                    if (Array.isArray(record)) {
-                        return callback(error, record);
-                    }
-                    return callback(error, record.address, record.family);
-                }
-
-                try{
-                    backup_object.lookup(domain, options, function (err, address, family_r) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        var value;
-                        /*istanbul ignore next - "all" option require node 4+*/
-                        if (Array.isArray(address)) {
-                            value = address;
-                        } else {
-                            value = {
-                                'address' : address,
-                                'family' : family_r
-                            };
-                        }
-                        cache.set('lookup_' + domain + '_' + family + '_' + hints + '_' +  all, value, function () {
-                            callback(err, address, family_r);
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolve method
-        dns.resolve = function (domain, type, callback) {
-            var type_new, callback_new;
-
-            if (typeof type === 'string') {
-                type_new = type;
-                callback_new = callback;
-            } else {
-                type_new = "A";
-                callback_new = type;
-            }
-
-            cache.get('resolve_' + domain + '_' + type_new, function (error, record) {
-                if (record) {
-                    return callback_new(error, deepCopy(record), true);
-                }
-                try {
-                    backup_object.resolve(domain, type_new, function (err, addresses) {
-                        if (err) {
-                            return callback_new(err);
-                        }
-                        cache.set('resolve_' + domain + '_' + type_new, addresses, function () {
-                            callback_new(err, deepCopy(addresses), false);
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback_new(err);
-                }
-            });
-        };
-
-        // override dns.resolve4 method
-        dns.resolve4 = function (domain, callback) {
-            cache.get('resolve4_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolve4(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolve4_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolve6 method
-        dns.resolve6 = function (domain, callback) {
-            cache.get('resolve6_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolve6(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolve6_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolveMx method
-        dns.resolveMx = function (domain, callback) {
-            cache.get('resolveMx_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolveMx(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolveMx_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolveTxt method
-        dns.resolveTxt = function (domain, callback) {
-            cache.get('resolveTxt_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolveTxt(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolveTxt_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolveSrv method
-        dns.resolveSrv = function (domain, callback) {
-            cache.get('resolveSrv_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolveSrv(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolveSrv_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolveNs method
-        dns.resolveNs = function (domain, callback) {
-            cache.get('resolveNs_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolveNs(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolveNs_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.resolveCname method
-        dns.resolveCname = function (domain, callback) {
-            cache.get('resolveCname_' + domain, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.resolveCname(domain, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('resolveCname_' + domain, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-
-        // override dns.reverse method
-        dns.reverse = function (ip, callback) {
-            cache.get('reverse_' + ip, function (error, record) {
-                if (record) {
-                    return callback(error, deepCopy(record));
-                }
-                try {
-                    backup_object.reverse(ip, function (err, addresses) {
-                        if (err) {
-                            return callback(err);
-                        }
-                        cache.set('reverse_' + ip, addresses, function () {
-                            callback(err, deepCopy(addresses));
-                        });
-                    });
-                } catch (err) {
-                    /*istanbul ignore next - doesn't throw in node 0.10*/
-                    callback(err);
-                }
-            });
-        };
-        return dns;
-};
-
-module.exports = function(conf) {
-    return new EnhanceDns(conf);
-};
-
-
-/***/ }),
-/* 638 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Named EC curves
-
-// Requires ec.js, jsbn.js, and jsbn2.js
-var BigInteger = __webpack_require__(81).BigInteger
-var ECCurveFp = __webpack_require__(139).ECCurveFp
-
-
-// ----------------
-// X9ECParameters
-
-// constructor
-function X9ECParameters(curve,g,n,h) {
-    this.curve = curve;
-    this.g = g;
-    this.n = n;
-    this.h = h;
-}
-
-function x9getCurve() {
-    return this.curve;
-}
-
-function x9getG() {
-    return this.g;
-}
-
-function x9getN() {
-    return this.n;
-}
-
-function x9getH() {
-    return this.h;
-}
-
-X9ECParameters.prototype.getCurve = x9getCurve;
-X9ECParameters.prototype.getG = x9getG;
-X9ECParameters.prototype.getN = x9getN;
-X9ECParameters.prototype.getH = x9getH;
-
-// ----------------
-// SECNamedCurves
-
-function fromHex(s) { return new BigInteger(s, 16); }
-
-function secp128r1() {
-    // p = 2^128 - 2^97 - 1
-    var p = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFF");
-    var a = fromHex("FFFFFFFDFFFFFFFFFFFFFFFFFFFFFFFC");
-    var b = fromHex("E87579C11079F43DD824993C2CEE5ED3");
-    //byte[] S = Hex.decode("000E0D4D696E6768756151750CC03A4473D03679");
-    var n = fromHex("FFFFFFFE0000000075A30D1B9038A115");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "161FF7528B899B2D0C28607CA52C5B86"
-		+ "CF5AC8395BAFEB13C02DA292DDED7A83");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp160k1() {
-    // p = 2^160 - 2^32 - 2^14 - 2^12 - 2^9 - 2^8 - 2^7 - 2^3 - 2^2 - 1
-    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFAC73");
-    var a = BigInteger.ZERO;
-    var b = fromHex("7");
-    //byte[] S = null;
-    var n = fromHex("0100000000000000000001B8FA16DFAB9ACA16B6B3");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "3B4C382CE37AA192A4019E763036F4F5DD4D7EBB"
-                + "938CF935318FDCED6BC28286531733C3F03C4FEE");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp160r1() {
-    // p = 2^160 - 2^31 - 1
-    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFF");
-    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7FFFFFFC");
-    var b = fromHex("1C97BEFC54BD7A8B65ACF89F81D4D4ADC565FA45");
-    //byte[] S = Hex.decode("1053CDE42C14D696E67687561517533BF3F83345");
-    var n = fromHex("0100000000000000000001F4C8F927AED3CA752257");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-		+ "4A96B5688EF573284664698968C38BB913CBFC82"
-		+ "23A628553168947D59DCC912042351377AC5FB32");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp192k1() {
-    // p = 2^192 - 2^32 - 2^12 - 2^8 - 2^7 - 2^6 - 2^3 - 1
-    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFEE37");
-    var a = BigInteger.ZERO;
-    var b = fromHex("3");
-    //byte[] S = null;
-    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFE26F2FC170F69466A74DEFD8D");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "DB4FF10EC057E9AE26B07D0280B7F4341DA5D1B1EAE06C7D"
-                + "9B2F2F6D9C5628A7844163D015BE86344082AA88D95E2F9D");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp192r1() {
-    // p = 2^192 - 2^64 - 1
-    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFF");
-    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFC");
-    var b = fromHex("64210519E59C80E70FA7E9AB72243049FEB8DEECC146B9B1");
-    //byte[] S = Hex.decode("3045AE6FC8422F64ED579528D38120EAE12196D5");
-    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "188DA80EB03090F67CBF20EB43A18800F4FF0AFD82FF1012"
-                + "07192B95FFC8DA78631011ED6B24CDD573F977A11E794811");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp224r1() {
-    // p = 2^224 - 2^96 + 1
-    var p = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF000000000000000000000001");
-    var a = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFE");
-    var b = fromHex("B4050A850C04B3ABF54132565044B0B7D7BFD8BA270B39432355FFB4");
-    //byte[] S = Hex.decode("BD71344799D5C7FCDC45B59FA3B9AB8F6A948BC5");
-    var n = fromHex("FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "B70E0CBD6BB4BF7F321390B94A03C1D356C21122343280D6115C1D21"
-                + "BD376388B5F723FB4C22DFE6CD4375A05A07476444D5819985007E34");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-function secp256r1() {
-    // p = 2^224 (2^32 - 1) + 2^192 + 2^96 - 1
-    var p = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFF");
-    var a = fromHex("FFFFFFFF00000001000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFC");
-    var b = fromHex("5AC635D8AA3A93E7B3EBBD55769886BC651D06B0CC53B0F63BCE3C3E27D2604B");
-    //byte[] S = Hex.decode("C49D360886E704936A6678E1139D26B7819F7E90");
-    var n = fromHex("FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551");
-    var h = BigInteger.ONE;
-    var curve = new ECCurveFp(p, a, b);
-    var G = curve.decodePointHex("04"
-                + "6B17D1F2E12C4247F8BCE6E563A440F277037D812DEB33A0F4A13945D898C296"
-		+ "4FE342E2FE1A7F9B8EE7EB4A7C0F9E162BCE33576B315ECECBB6406837BF51F5");
-    return new X9ECParameters(curve, G, n, h);
-}
-
-// TODO: make this into a proper hashtable
-function getSECCurveByName(name) {
-    if(name == "secp128r1") return secp128r1();
-    if(name == "secp160k1") return secp160k1();
-    if(name == "secp160r1") return secp160r1();
-    if(name == "secp192k1") return secp192k1();
-    if(name == "secp192r1") return secp192r1();
-    if(name == "secp224r1") return secp224r1();
-    if(name == "secp256r1") return secp256r1();
-    return null;
-}
-
-module.exports = {
-  "secp128r1":secp128r1,
-  "secp160k1":secp160k1,
-  "secp160r1":secp160r1,
-  "secp192k1":secp192k1,
-  "secp192r1":secp192r1,
-  "secp224r1":secp224r1,
-  "secp256r1":secp256r1
-}
-
-
-/***/ }),
-/* 639 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * expand-brackets <https://github.com/jonschlinkert/expand-brackets>
- *
- * Copyright (c) 2015 Jon Schlinkert.
- * Licensed under the MIT license.
- */
-
-
-
-var isPosixBracket = __webpack_require__(739);
-
-/**
- * POSIX character classes
- */
-
-var POSIX = {
-  alnum: 'a-zA-Z0-9',
-  alpha: 'a-zA-Z',
-  blank: ' \\t',
-  cntrl: '\\x00-\\x1F\\x7F',
-  digit: '0-9',
-  graph: '\\x21-\\x7E',
-  lower: 'a-z',
-  print: '\\x20-\\x7E',
-  punct: '-!"#$%&\'()\\*+,./:;<=>?@[\\]^_`{|}~',
-  space: ' \\t\\r\\n\\v\\f',
-  upper: 'A-Z',
-  word:  'A-Za-z0-9_',
-  xdigit: 'A-Fa-f0-9',
-};
-
-/**
- * Expose `brackets`
- */
-
-module.exports = brackets;
-
-function brackets(str) {
-  if (!isPosixBracket(str)) {
-    return str;
-  }
-
-  var negated = false;
-  if (str.indexOf('[^') !== -1) {
-    negated = true;
-    str = str.split('[^').join('[');
-  }
-  if (str.indexOf('[!') !== -1) {
-    negated = true;
-    str = str.split('[!').join('[');
-  }
-
-  var a = str.split('[');
-  var b = str.split(']');
-  var imbalanced = a.length !== b.length;
-
-  var parts = str.split(/(?::\]\[:|\[?\[:|:\]\]?)/);
-  var len = parts.length, i = 0;
-  var end = '', beg = '';
-  var res = [];
-
-  // start at the end (innermost) first
-  while (len--) {
-    var inner = parts[i++];
-    if (inner === '^[!' || inner === '[!') {
-      inner = '';
-      negated = true;
-    }
-
-    var prefix = negated ? '^' : '';
-    var ch = POSIX[inner];
-
-    if (ch) {
-      res.push('[' + prefix + ch + ']');
-    } else if (inner) {
-      if (/^\[?\w-\w\]?$/.test(inner)) {
-        if (i === parts.length) {
-          res.push('[' + prefix + inner);
-        } else if (i === 1) {
-          res.push(prefix + inner + ']');
-        } else {
-          res.push(prefix + inner);
-        }
-      } else {
-        if (i === 1) {
-          beg += inner;
-        } else if (i === parts.length) {
-          end += inner;
-        } else {
-          res.push('[' + prefix + inner + ']');
-        }
-      }
-    }
-  }
-
-  var result = res.join('|');
-  var rlen = res.length || 1;
-  if (rlen > 1) {
-    result = '(?:' + result + ')';
-    rlen = 1;
-  }
-  if (beg) {
-    rlen++;
-    if (beg.charAt(0) === '[') {
-      if (imbalanced) {
-        beg = '\\[' + beg.slice(1);
-      } else {
-        beg += ']';
-      }
-    }
-    result = beg + result;
-  }
-  if (end) {
-    rlen++;
-    if (end.slice(-1) === ']') {
-      if (imbalanced) {
-        end = end.slice(0, end.length - 1) + '\\]';
-      } else {
-        end = '[' + end;
-      }
-    }
-    result += end;
-  }
-
-  if (rlen > 1) {
-    result = result.split('][').join(']|[');
-    if (result.indexOf('|') !== -1 && !/\(\?/.test(result)) {
-      result = '(?:' + result + ')';
-    }
-  }
-
-  result = result.replace(/\[+=|=\]+/g, '\\b');
-  return result;
-}
-
-brackets.makeRe = function(pattern) {
-  try {
-    return new RegExp(brackets(pattern));
-  } catch (err) {}
-};
-
-brackets.isMatch = function(str, pattern) {
-  try {
-    return brackets.makeRe(pattern).test(str);
-  } catch (err) {
-    return false;
-  }
-};
-
-brackets.match = function(arr, pattern) {
-  var len = arr.length, i = 0;
-  var res = arr.slice();
-
-  var re = brackets.makeRe(pattern);
-  while (i < len) {
-    var ele = arr[i++];
-    if (!re.test(ele)) {
-      continue;
-    }
-    res.splice(i, 1);
-  }
-  return res;
-};
-
-
-/***/ }),
-/* 640 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * expand-range <https://github.com/jonschlinkert/expand-range>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT license.
- */
-
-
-
-var fill = __webpack_require__(641);
-
-module.exports = function expandRange(str, options, fn) {
-  if (typeof str !== 'string') {
-    throw new TypeError('expand-range expects a string.');
-  }
-
-  if (typeof options === 'function') {
-    fn = options;
-    options = {};
-  }
-
-  if (typeof options === 'boolean') {
-    options = {};
-    options.makeRe = true;
-  }
-
-  // create arguments to pass to fill-range
-  var opts = options || {};
-  var args = str.split('..');
-  var len = args.length;
-  if (len > 3) { return str; }
-
-  // if only one argument, it can't expand so return it
-  if (len === 1) { return args; }
-
-  // if `true`, tell fill-range to regexify the string
-  if (typeof fn === 'boolean' && fn === true) {
-    opts.makeRe = true;
-  }
-
-  args.push(opts);
-  return fill.apply(null, args.concat(fn));
-};
-
-
-/***/ }),
-/* 641 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * fill-range <https://github.com/jonschlinkert/fill-range>
- *
- * Copyright (c) 2014-2018, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-var isObject = __webpack_require__(643);
-var isNumber = __webpack_require__(642);
-var randomize = __webpack_require__(787);
-var repeatStr = __webpack_require__(797);
-var repeat = __webpack_require__(411);
-
-/**
- * Expose `fillRange`
- */
-
-module.exports = fillRange;
-
-/**
- * Return a range of numbers or letters.
- *
- * @param  {String} `a` Start of the range
- * @param  {String} `b` End of the range
- * @param  {String} `step` Increment or decrement to use.
- * @param  {Function} `fn` Custom function to modify each element in the range.
- * @return {Array}
- */
-
-function fillRange(a, b, step, options, fn) {
-  if (a == null || b == null) {
-    throw new Error('fill-range expects the first and second args to be strings.');
-  }
-
-  if (typeof step === 'function') {
-    fn = step; options = {}; step = null;
-  }
-
-  if (typeof options === 'function') {
-    fn = options; options = {};
-  }
-
-  if (isObject(step)) {
-    options = step; step = '';
-  }
-
-  var expand, regex = false, sep = '';
-  var opts = options || {};
-
-  if (typeof opts.silent === 'undefined') {
-    opts.silent = true;
-  }
-
-  step = step || opts.step;
-
-  // store a ref to unmodified arg
-  var origA = a, origB = b;
-
-  b = (b.toString() === '-0') ? 0 : b;
-
-  if (opts.optimize || opts.makeRe) {
-    step = step ? (step += '~') : step;
-    expand = true;
-    regex = true;
-    sep = '~';
-  }
-
-  // handle special step characters
-  if (typeof step === 'string') {
-    var match = stepRe().exec(step);
-
-    if (match) {
-      var i = match.index;
-      var m = match[0];
-
-      // repeat string
-      if (m === '+') {
-        return repeat(a, b);
-
-      // randomize a, `b` times
-      } else if (m === '?') {
-        return [randomize(a, b)];
-
-      // expand right, no regex reduction
-      } else if (m === '>') {
-        step = step.substr(0, i) + step.substr(i + 1);
-        expand = true;
-
-      // expand to an array, or if valid create a reduced
-      // string for a regex logic `or`
-      } else if (m === '|') {
-        step = step.substr(0, i) + step.substr(i + 1);
-        expand = true;
-        regex = true;
-        sep = m;
-
-      // expand to an array, or if valid create a reduced
-      // string for a regex range
-      } else if (m === '~') {
-        step = step.substr(0, i) + step.substr(i + 1);
-        expand = true;
-        regex = true;
-        sep = m;
-      }
-    } else if (!isNumber(step)) {
-      if (!opts.silent) {
-        throw new TypeError('fill-range: invalid step.');
-      }
-      return null;
-    }
-  }
-
-  if (/[.&*()[\]^%$#@!]/.test(a) || /[.&*()[\]^%$#@!]/.test(b)) {
-    if (!opts.silent) {
-      throw new RangeError('fill-range: invalid range arguments.');
-    }
-    return null;
-  }
-
-  // has neither a letter nor number, or has both letters and numbers
-  // this needs to be after the step logic
-  if (!noAlphaNum(a) || !noAlphaNum(b) || hasBoth(a) || hasBoth(b)) {
-    if (!opts.silent) {
-      throw new RangeError('fill-range: invalid range arguments.');
-    }
-    return null;
-  }
-
-  // validate arguments
-  var isNumA = isNumber(zeros(a));
-  var isNumB = isNumber(zeros(b));
-
-  if ((!isNumA && isNumB) || (isNumA && !isNumB)) {
-    if (!opts.silent) {
-      throw new TypeError('fill-range: first range argument is incompatible with second.');
-    }
-    return null;
-  }
-
-  // by this point both are the same, so we
-  // can use A to check going forward.
-  var isNum = isNumA;
-  var num = formatStep(step);
-
-  // is the range alphabetical? or numeric?
-  if (isNum) {
-    // if numeric, coerce to an integer
-    a = +a; b = +b;
-  } else {
-    // otherwise, get the charCode to expand alpha ranges
-    a = a.charCodeAt(0);
-    b = b.charCodeAt(0);
-  }
-
-  // is the pattern descending?
-  var isDescending = a > b;
-
-  // don't create a character class if the args are < 0
-  if (a < 0 || b < 0) {
-    expand = false;
-    regex = false;
-  }
-
-  // detect padding
-  var padding = isPadded(origA, origB);
-  var res, pad, arr = [];
-  var ii = 0;
-
-  // character classes, ranges and logical `or`
-  if (regex) {
-    if (shouldExpand(a, b, num, isNum, padding, opts)) {
-      // make sure the correct separator is used
-      if (sep === '|' || sep === '~') {
-        sep = detectSeparator(a, b, num, isNum, isDescending);
-      }
-      return wrap([origA, origB], sep, opts);
-    }
-  }
-
-  while (isDescending ? (a >= b) : (a <= b)) {
-    if (padding && isNum) {
-      pad = padding(a);
-    }
-
-    // custom function
-    if (typeof fn === 'function') {
-      res = fn(a, isNum, pad, ii++);
-
-    // letters
-    } else if (!isNum) {
-      if (regex && isInvalidChar(a)) {
-        res = null;
-      } else {
-        res = String.fromCharCode(a);
-      }
-
-    // numbers
-    } else {
-      res = formatPadding(a, pad);
-    }
-
-    // add result to the array, filtering any nulled values
-    if (res !== null) arr.push(res);
-
-    // increment or decrement
-    if (isDescending) {
-      a -= num;
-    } else {
-      a += num;
-    }
-  }
-
-  // now that the array is expanded, we need to handle regex
-  // character classes, ranges or logical `or` that wasn't
-  // already handled before the loop
-  if ((regex || expand) && !opts.noexpand) {
-    // make sure the correct separator is used
-    if (sep === '|' || sep === '~') {
-      sep = detectSeparator(a, b, num, isNum, isDescending);
-    }
-    if (arr.length === 1 || a < 0 || b < 0) { return arr; }
-    return wrap(arr, sep, opts);
-  }
-
-  return arr;
-}
-
-/**
- * Wrap the string with the correct regex
- * syntax.
- */
-
-function wrap(arr, sep, opts) {
-  if (sep === '~') { sep = '-'; }
-  var str = arr.join(sep);
-  var pre = opts && opts.regexPrefix;
-
-  // regex logical `or`
-  if (sep === '|') {
-    str = pre ? pre + str : str;
-    str = '(' + str + ')';
-  }
-
-  // regex character class
-  if (sep === '-') {
-    str = (pre && pre === '^')
-      ? pre + str
-      : str;
-    str = '[' + str + ']';
-  }
-  return [str];
-}
-
-/**
- * Check for invalid characters
- */
-
-function isCharClass(a, b, step, isNum, isDescending) {
-  if (isDescending) { return false; }
-  if (isNum) { return a <= 9 && b <= 9; }
-  if (a < b) { return step === 1; }
-  return false;
-}
-
-/**
- * Detect the correct separator to use
- */
-
-function shouldExpand(a, b, num, isNum, padding, opts) {
-  if (isNum && (a > 9 || b > 9)) { return false; }
-  return !padding && num === 1 && a < b;
-}
-
-/**
- * Detect the correct separator to use
- */
-
-function detectSeparator(a, b, step, isNum, isDescending) {
-  var isChar = isCharClass(a, b, step, isNum, isDescending);
-  if (!isChar) {
-    return '|';
-  }
-  return '~';
-}
-
-/**
- * Correctly format the step based on type
- */
-
-function formatStep(step) {
-  return Math.abs(step >> 0) || 1;
-}
-
-/**
- * Format padding, taking leading `-` into account
- */
-
-function formatPadding(ch, pad) {
-  var res = pad ? pad + ch : ch;
-  if (pad && ch.toString().charAt(0) === '-') {
-    res = '-' + pad + ch.toString().substr(1);
-  }
-  return res.toString();
-}
-
-/**
- * Check for invalid characters
- */
-
-function isInvalidChar(str) {
-  var ch = toStr(str);
-  return ch === '\\'
-    || ch === '['
-    || ch === ']'
-    || ch === '^'
-    || ch === '('
-    || ch === ')'
-    || ch === '`';
-}
-
-/**
- * Convert to a string from a charCode
- */
-
-function toStr(ch) {
-  return String.fromCharCode(ch);
-}
-
-
-/**
- * Step regex
- */
-
-function stepRe() {
-  return /\?|>|\||\+|\~/g;
-}
-
-/**
- * Return true if `val` has either a letter
- * or a number
- */
-
-function noAlphaNum(val) {
-  return /[a-z0-9]/i.test(val);
-}
-
-/**
- * Return true if `val` has both a letter and
- * a number (invalid)
- */
-
-function hasBoth(val) {
-  return /[a-z][0-9]|[0-9][a-z]/i.test(val);
-}
-
-/**
- * Normalize zeros for checks
- */
-
-function zeros(val) {
-  if (/^-*0+$/.test(val.toString())) {
-    return '0';
-  }
-  return val;
-}
-
-/**
- * Return true if `val` has leading zeros,
- * or a similar valid pattern.
- */
-
-function hasZeros(val) {
-  return /[^.]\.|^-*0+[0-9]/.test(val);
-}
-
-/**
- * If the string is padded, returns a curried function with
- * the a cached padding string, or `false` if no padding.
- *
- * @param  {*} `origA` String or number.
- * @return {String|Boolean}
- */
-
-function isPadded(origA, origB) {
-  if (hasZeros(origA) || hasZeros(origB)) {
-    var alen = length(origA);
-    var blen = length(origB);
-
-    var len = alen >= blen
-      ? alen
-      : blen;
-
-    return function (a) {
-      return repeatStr('0', len - length(a));
-    };
-  }
-  return false;
-}
-
-/**
- * Get the string length of `val`
- */
-
-function length(val) {
-  return val.toString().length;
-}
-
-
-/***/ }),
-/* 642 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * is-number <https://github.com/jonschlinkert/is-number>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var typeOf = __webpack_require__(179);
-
-module.exports = function isNumber(num) {
-  var type = typeOf(num);
-  if (type !== 'number' && type !== 'string') {
-    return false;
-  }
-  var n = +num;
-  return (n - n + 1) >= 0 && num !== '';
-};
-
-
-/***/ }),
-/* 643 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * isobject <https://github.com/jonschlinkert/isobject>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var isArray = __webpack_require__(398);
-
-module.exports = function isObject(val) {
-  return val != null && typeof val === 'object' && isArray(val) === false;
-};
-
-
-/***/ }),
-/* 644 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * extglob <https://github.com/jonschlinkert/extglob>
- *
- * Copyright (c) 2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-/**
- * Module dependencies
- */
-
-var isExtglob = __webpack_require__(177);
-var re, cache = {};
-
-/**
- * Expose `extglob`
- */
-
-module.exports = extglob;
-
-/**
- * Convert the given extglob `string` to a regex-compatible
- * string.
- *
- * ```js
- * var extglob = require('extglob');
- * extglob('!(a?(b))');
- * //=> '(?!a(?:b)?)[^/]*?'
- * ```
- *
- * @param {String} `str` The string to convert.
- * @param {Object} `options`
- *   @option {Boolean} [options] `esc` If `false` special characters will not be escaped. Defaults to `true`.
- *   @option {Boolean} [options] `regex` If `true` a regular expression is returned instead of a string.
- * @return {String}
- * @api public
- */
-
-
-function extglob(str, opts) {
-  opts = opts || {};
-  var o = {}, i = 0;
-
-  // fix common character reversals
-  // '*!(.js)' => '*.!(js)'
-  str = str.replace(/!\(([^\w*()])/g, '$1!(');
-
-  // support file extension negation
-  str = str.replace(/([*\/])\.!\([*]\)/g, function (m, ch) {
-    if (ch === '/') {
-      return escape('\\/[^.]+');
-    }
-    return escape('[^.]+');
-  });
-
-  // create a unique key for caching by
-  // combining the string and options
-  var key = str
-    + String(!!opts.regex)
-    + String(!!opts.contains)
-    + String(!!opts.escape);
-
-  if (cache.hasOwnProperty(key)) {
-    return cache[key];
-  }
-
-  if (!(re instanceof RegExp)) {
-    re = regex();
-  }
-
-  opts.negate = false;
-  var m;
-
-  while (m = re.exec(str)) {
-    var prefix = m[1];
-    var inner = m[3];
-    if (prefix === '!') {
-      opts.negate = true;
-    }
-
-    var id = '__EXTGLOB_' + (i++) + '__';
-    // use the prefix of the _last_ (outtermost) pattern
-    o[id] = wrap(inner, prefix, opts.escape);
-    str = str.split(m[0]).join(id);
-  }
-
-  var keys = Object.keys(o);
-  var len = keys.length;
-
-  // we have to loop again to allow us to convert
-  // patterns in reverse order (starting with the
-  // innermost/last pattern first)
-  while (len--) {
-    var prop = keys[len];
-    str = str.split(prop).join(o[prop]);
-  }
-
-  var result = opts.regex
-    ? toRegex(str, opts.contains, opts.negate)
-    : str;
-
-  result = result.split('.').join('\\.');
-
-  // cache the result and return it
-  return (cache[key] = result);
-}
-
-/**
- * Convert `string` to a regex string.
- *
- * @param  {String} `str`
- * @param  {String} `prefix` Character that determines how to wrap the string.
- * @param  {Boolean} `esc` If `false` special characters will not be escaped. Defaults to `true`.
- * @return {String}
- */
-
-function wrap(inner, prefix, esc) {
-  if (esc) inner = escape(inner);
-
-  switch (prefix) {
-    case '!':
-      return '(?!' + inner + ')[^/]' + (esc ? '%%%~' : '*?');
-    case '@':
-      return '(?:' + inner + ')';
-    case '+':
-      return '(?:' + inner + ')+';
-    case '*':
-      return '(?:' + inner + ')' + (esc ? '%%' : '*')
-    case '?':
-      return '(?:' + inner + '|)';
-    default:
-      return inner;
-  }
-}
-
-function escape(str) {
-  str = str.split('*').join('[^/]%%%~');
-  str = str.split('.').join('\\.');
-  return str;
-}
-
-/**
- * extglob regex.
- */
-
-function regex() {
-  return /(\\?[@?!+*$]\\?)(\(([^()]*?)\))/;
-}
-
-/**
- * Negation regex
- */
-
-function negate(str) {
-  return '(?!^' + str + ').*$';
-}
-
-/**
- * Create the regex to do the matching. If
- * the leading character in the `pattern` is `!`
- * a negation regex is returned.
- *
- * @param {String} `pattern`
- * @param {Boolean} `contains` Allow loose matching.
- * @param {Boolean} `isNegated` True if the pattern is a negation pattern.
- */
-
-function toRegex(pattern, contains, isNegated) {
-  var prefix = contains ? '^' : '';
-  var after = contains ? '$' : '';
-  pattern = ('(?:' + pattern + ')' + after);
-  if (isNegated) {
-    pattern = prefix + negate(pattern);
-  }
-  return new RegExp(prefix + pattern);
-}
-
-
-/***/ }),
-/* 645 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
- * extsprintf.js: extended POSIX-style sprintf
- */
-
-var mod_assert = __webpack_require__(28);
-var mod_util = __webpack_require__(3);
-
-/*
- * Public interface
- */
-exports.sprintf = jsSprintf;
-exports.printf = jsPrintf;
-exports.fprintf = jsFprintf;
-
-/*
- * Stripped down version of s[n]printf(3c).  We make a best effort to throw an
- * exception when given a format string we don't understand, rather than
- * ignoring it, so that we won't break existing programs if/when we go implement
- * the rest of this.
- *
- * This implementation currently supports specifying
- *	- field alignment ('-' flag),
- * 	- zero-pad ('0' flag)
- *	- always show numeric sign ('+' flag),
- *	- field width
- *	- conversions for strings, decimal integers, and floats (numbers).
- *	- argument size specifiers.  These are all accepted but ignored, since
- *	  Javascript has no notion of the physical size of an argument.
- *
- * Everything else is currently unsupported, most notably precision, unsigned
- * numbers, non-decimal numbers, and characters.
- */
-function jsSprintf(fmt)
-{
-	var regex = [
-	    '([^%]*)',				/* normal text */
-	    '%',				/* start of format */
-	    '([\'\\-+ #0]*?)',			/* flags (optional) */
-	    '([1-9]\\d*)?',			/* width (optional) */
-	    '(\\.([1-9]\\d*))?',		/* precision (optional) */
-	    '[lhjztL]*?',			/* length mods (ignored) */
-	    '([diouxXfFeEgGaAcCsSp%jr])'	/* conversion */
-	].join('');
-
-	var re = new RegExp(regex);
-	var args = Array.prototype.slice.call(arguments, 1);
-	var flags, width, precision, conversion;
-	var left, pad, sign, arg, match;
-	var ret = '';
-	var argn = 1;
-
-	mod_assert.equal('string', typeof (fmt));
-
-	while ((match = re.exec(fmt)) !== null) {
-		ret += match[1];
-		fmt = fmt.substring(match[0].length);
-
-		flags = match[2] || '';
-		width = match[3] || 0;
-		precision = match[4] || '';
-		conversion = match[6];
-		left = false;
-		sign = false;
-		pad = ' ';
-
-		if (conversion == '%') {
-			ret += '%';
-			continue;
-		}
-
-		if (args.length === 0)
-			throw (new Error('too few args to sprintf'));
-
-		arg = args.shift();
-		argn++;
-
-		if (flags.match(/[\' #]/))
-			throw (new Error(
-			    'unsupported flags: ' + flags));
-
-		if (precision.length > 0)
-			throw (new Error(
-			    'non-zero precision not supported'));
-
-		if (flags.match(/-/))
-			left = true;
-
-		if (flags.match(/0/))
-			pad = '0';
-
-		if (flags.match(/\+/))
-			sign = true;
-
-		switch (conversion) {
-		case 's':
-			if (arg === undefined || arg === null)
-				throw (new Error('argument ' + argn +
-				    ': attempted to print undefined or null ' +
-				    'as a string'));
-			ret += doPad(pad, width, left, arg.toString());
-			break;
-
-		case 'd':
-			arg = Math.floor(arg);
-			/*jsl:fallthru*/
-		case 'f':
-			sign = sign && arg > 0 ? '+' : '';
-			ret += sign + doPad(pad, width, left,
-			    arg.toString());
-			break;
-
-		case 'x':
-			ret += doPad(pad, width, left, arg.toString(16));
-			break;
-
-		case 'j': /* non-standard */
-			if (width === 0)
-				width = 10;
-			ret += mod_util.inspect(arg, false, width);
-			break;
-
-		case 'r': /* non-standard */
-			ret += dumpException(arg);
-			break;
-
-		default:
-			throw (new Error('unsupported conversion: ' +
-			    conversion));
-		}
-	}
-
-	ret += fmt;
-	return (ret);
-}
-
-function jsPrintf() {
-	var args = Array.prototype.slice.call(arguments);
-	args.unshift(process.stdout);
-	jsFprintf.apply(null, args);
-}
-
-function jsFprintf(stream) {
-	var args = Array.prototype.slice.call(arguments, 1);
-	return (stream.write(jsSprintf.apply(this, args)));
-}
-
-function doPad(chr, width, left, str)
-{
-	var ret = str;
-
-	while (ret.length < width) {
-		if (left)
-			ret += chr;
-		else
-			ret = chr + ret;
-	}
-
-	return (ret);
-}
-
-/*
- * This function dumps long stack traces for exceptions having a cause() method.
- * See node-verror for an example.
- */
-function dumpException(ex)
-{
-	var ret;
-
-	if (!(ex instanceof Error))
-		throw (new Error(jsSprintf('invalid type for %%r: %j', ex)));
-
-	/* Note that V8 prepends "ex.stack" with ex.toString(). */
-	ret = 'EXCEPTION: ' + ex.constructor.name + ': ' + ex.stack;
-
-	if (ex.cause && typeof (ex.cause) === 'function') {
-		var cex = ex.cause();
-		if (cex) {
-			ret += '\nCaused by: ' + dumpException(cex);
-		}
-	}
-
-	return (ret);
-}
-
-
-/***/ }),
-/* 646 */
-/***/ (function(module, exports) {
-
-/*!
- * filename-regex <https://github.com/regexps/filename-regex>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert
- * Licensed under the MIT license.
- */
-
-module.exports = function filenameRegex() {
-  return /([^\\\/]+)$/;
-};
-
-
-/***/ }),
-/* 647 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * for-in <https://github.com/jonschlinkert/for-in>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-module.exports = function forIn(obj, fn, thisArg) {
-  for (var key in obj) {
-    if (fn.call(thisArg, obj[key], key, obj) === false) {
-      break;
-    }
-  }
-};
-
-
-/***/ }),
-/* 648 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = ForeverAgent
-ForeverAgent.SSL = ForeverAgentSSL
-
-var util = __webpack_require__(3)
-  , Agent = __webpack_require__(87).Agent
-  , net = __webpack_require__(164)
-  , tls = __webpack_require__(467)
-  , AgentSSL = __webpack_require__(195).Agent
-  
-function getConnectionName(host, port) {  
-  var name = ''
-  if (typeof host === 'string') {
-    name = host + ':' + port
-  } else {
-    // For node.js v012.0 and iojs-v1.5.1, host is an object. And any existing localAddress is part of the connection name.
-    name = host.host + ':' + host.port + ':' + (host.localAddress ? (host.localAddress + ':') : ':')
-  }
-  return name
-}    
-
-function ForeverAgent(options) {
-  var self = this
-  self.options = options || {}
-  self.requests = {}
-  self.sockets = {}
-  self.freeSockets = {}
-  self.maxSockets = self.options.maxSockets || Agent.defaultMaxSockets
-  self.minSockets = self.options.minSockets || ForeverAgent.defaultMinSockets
-  self.on('free', function(socket, host, port) {
-    var name = getConnectionName(host, port)
-
-    if (self.requests[name] && self.requests[name].length) {
-      self.requests[name].shift().onSocket(socket)
-    } else if (self.sockets[name].length < self.minSockets) {
-      if (!self.freeSockets[name]) self.freeSockets[name] = []
-      self.freeSockets[name].push(socket)
-      
-      // if an error happens while we don't use the socket anyway, meh, throw the socket away
-      var onIdleError = function() {
-        socket.destroy()
-      }
-      socket._onIdleError = onIdleError
-      socket.on('error', onIdleError)
-    } else {
-      // If there are no pending requests just destroy the
-      // socket and it will get removed from the pool. This
-      // gets us out of timeout issues and allows us to
-      // default to Connection:keep-alive.
-      socket.destroy()
-    }
-  })
-
-}
-util.inherits(ForeverAgent, Agent)
-
-ForeverAgent.defaultMinSockets = 5
-
-
-ForeverAgent.prototype.createConnection = net.createConnection
-ForeverAgent.prototype.addRequestNoreuse = Agent.prototype.addRequest
-ForeverAgent.prototype.addRequest = function(req, host, port) {
-  var name = getConnectionName(host, port)
-  
-  if (typeof host !== 'string') {
-    var options = host
-    port = options.port
-    host = options.host
-  }
-
-  if (this.freeSockets[name] && this.freeSockets[name].length > 0 && !req.useChunkedEncodingByDefault) {
-    var idleSocket = this.freeSockets[name].pop()
-    idleSocket.removeListener('error', idleSocket._onIdleError)
-    delete idleSocket._onIdleError
-    req._reusedSocket = true
-    req.onSocket(idleSocket)
-  } else {
-    this.addRequestNoreuse(req, host, port)
-  }
-}
-
-ForeverAgent.prototype.removeSocket = function(s, name, host, port) {
-  if (this.sockets[name]) {
-    var index = this.sockets[name].indexOf(s)
-    if (index !== -1) {
-      this.sockets[name].splice(index, 1)
-    }
-  } else if (this.sockets[name] && this.sockets[name].length === 0) {
-    // don't leak
-    delete this.sockets[name]
-    delete this.requests[name]
-  }
-  
-  if (this.freeSockets[name]) {
-    var index = this.freeSockets[name].indexOf(s)
-    if (index !== -1) {
-      this.freeSockets[name].splice(index, 1)
-      if (this.freeSockets[name].length === 0) {
-        delete this.freeSockets[name]
-      }
-    }
-  }
-
-  if (this.requests[name] && this.requests[name].length) {
-    // If we have pending requests and a socket gets closed a new one
-    // needs to be created to take over in the pool for the one that closed.
-    this.createSocket(name, host, port).emit('free')
-  }
-}
-
-function ForeverAgentSSL (options) {
-  ForeverAgent.call(this, options)
-}
-util.inherits(ForeverAgentSSL, ForeverAgent)
-
-ForeverAgentSSL.prototype.createConnection = createConnectionSSL
-ForeverAgentSSL.prototype.addRequestNoreuse = AgentSSL.prototype.addRequest
-
-function createConnectionSSL (port, host, options) {
-  if (typeof port === 'object') {
-    options = port;
-  } else if (typeof host === 'object') {
-    options = host;
-  } else if (typeof options === 'object') {
-    options = options;
-  } else {
-    options = {};
-  }
-
-  if (typeof port === 'number') {
-    options.port = port;
-  }
-
-  if (typeof host === 'string') {
-    options.host = host;
-  }
-
-  return tls.connect(options);
-}
-
-
-/***/ }),
-/* 649 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var CombinedStream = __webpack_require__(385);
-var util = __webpack_require__(3);
-var path = __webpack_require__(0);
-var http = __webpack_require__(87);
-var https = __webpack_require__(195);
-var parseUrl = __webpack_require__(24).parse;
-var fs = __webpack_require__(5);
-var mime = __webpack_require__(400);
-var asynckit = __webpack_require__(517);
-var populate = __webpack_require__(650);
-
-// Public API
-module.exports = FormData;
-
-// make it a Stream
-util.inherits(FormData, CombinedStream);
-
-/**
- * Create readable "multipart/form-data" streams.
- * Can be used to submit forms
- * and file uploads to other web applications.
- *
- * @constructor
- * @param {Object} options - Properties to be added/overriden for FormData and CombinedStream
- */
-function FormData(options) {
-  if (!(this instanceof FormData)) {
-    return new FormData();
-  }
-
-  this._overheadLength = 0;
-  this._valueLength = 0;
-  this._valuesToMeasure = [];
-
-  CombinedStream.call(this);
-
-  options = options || {};
-  for (var option in options) {
-    this[option] = options[option];
-  }
-}
-
-FormData.LINE_BREAK = '\r\n';
-FormData.DEFAULT_CONTENT_TYPE = 'application/octet-stream';
-
-FormData.prototype.append = function(field, value, options) {
-
-  options = options || {};
-
-  // allow filename as single option
-  if (typeof options == 'string') {
-    options = {filename: options};
-  }
-
-  var append = CombinedStream.prototype.append.bind(this);
-
-  // all that streamy business can't handle numbers
-  if (typeof value == 'number') {
-    value = '' + value;
-  }
-
-  // https://github.com/felixge/node-form-data/issues/38
-  if (util.isArray(value)) {
-    // Please convert your array into string
-    // the way web server expects it
-    this._error(new Error('Arrays are not supported.'));
-    return;
-  }
-
-  var header = this._multiPartHeader(field, value, options);
-  var footer = this._multiPartFooter();
-
-  append(header);
-  append(value);
-  append(footer);
-
-  // pass along options.knownLength
-  this._trackLength(header, value, options);
-};
-
-FormData.prototype._trackLength = function(header, value, options) {
-  var valueLength = 0;
-
-  // used w/ getLengthSync(), when length is known.
-  // e.g. for streaming directly from a remote server,
-  // w/ a known file a size, and not wanting to wait for
-  // incoming file to finish to get its size.
-  if (options.knownLength != null) {
-    valueLength += +options.knownLength;
-  } else if (Buffer.isBuffer(value)) {
-    valueLength = value.length;
-  } else if (typeof value === 'string') {
-    valueLength = Buffer.byteLength(value);
-  }
-
-  this._valueLength += valueLength;
-
-  // @check why add CRLF? does this account for custom/multiple CRLFs?
-  this._overheadLength +=
-    Buffer.byteLength(header) +
-    FormData.LINE_BREAK.length;
-
-  // empty or either doesn't have path or not an http response
-  if (!value || ( !value.path && !(value.readable && value.hasOwnProperty('httpVersion')) )) {
-    return;
-  }
-
-  // no need to bother with the length
-  if (!options.knownLength) {
-    this._valuesToMeasure.push(value);
-  }
-};
-
-FormData.prototype._lengthRetriever = function(value, callback) {
-
-  if (value.hasOwnProperty('fd')) {
-
-    // take read range into a account
-    // `end` = Infinity –> read file till the end
-    //
-    // TODO: Looks like there is bug in Node fs.createReadStream
-    // it doesn't respect `end` options without `start` options
-    // Fix it when node fixes it.
-    // https://github.com/joyent/node/issues/7819
-    if (value.end != undefined && value.end != Infinity && value.start != undefined) {
-
-      // when end specified
-      // no need to calculate range
-      // inclusive, starts with 0
-      callback(null, value.end + 1 - (value.start ? value.start : 0));
-
-    // not that fast snoopy
-    } else {
-      // still need to fetch file size from fs
-      fs.stat(value.path, function(err, stat) {
-
-        var fileSize;
-
-        if (err) {
-          callback(err);
-          return;
-        }
-
-        // update final size based on the range options
-        fileSize = stat.size - (value.start ? value.start : 0);
-        callback(null, fileSize);
-      });
-    }
-
-  // or http response
-  } else if (value.hasOwnProperty('httpVersion')) {
-    callback(null, +value.headers['content-length']);
-
-  // or request stream http://github.com/mikeal/request
-  } else if (value.hasOwnProperty('httpModule')) {
-    // wait till response come back
-    value.on('response', function(response) {
-      value.pause();
-      callback(null, +response.headers['content-length']);
-    });
-    value.resume();
-
-  // something else
-  } else {
-    callback('Unknown stream');
-  }
-};
-
-FormData.prototype._multiPartHeader = function(field, value, options) {
-  // custom header specified (as string)?
-  // it becomes responsible for boundary
-  // (e.g. to handle extra CRLFs on .NET servers)
-  if (typeof options.header == 'string') {
-    return options.header;
-  }
-
-  var contentDisposition = this._getContentDisposition(value, options);
-  var contentType = this._getContentType(value, options);
-
-  var contents = '';
-  var headers  = {
-    // add custom disposition as third element or keep it two elements if not
-    'Content-Disposition': ['form-data', 'name="' + field + '"'].concat(contentDisposition || []),
-    // if no content type. allow it to be empty array
-    'Content-Type': [].concat(contentType || [])
-  };
-
-  // allow custom headers.
-  if (typeof options.header == 'object') {
-    populate(headers, options.header);
-  }
-
-  var header;
-  for (var prop in headers) {
-    if (!headers.hasOwnProperty(prop)) continue;
-    header = headers[prop];
-
-    // skip nullish headers.
-    if (header == null) {
-      continue;
-    }
-
-    // convert all headers to arrays.
-    if (!Array.isArray(header)) {
-      header = [header];
-    }
-
-    // add non-empty headers.
-    if (header.length) {
-      contents += prop + ': ' + header.join('; ') + FormData.LINE_BREAK;
-    }
-  }
-
-  return '--' + this.getBoundary() + FormData.LINE_BREAK + contents + FormData.LINE_BREAK;
-};
-
-FormData.prototype._getContentDisposition = function(value, options) {
-
-  var filename
-    , contentDisposition
-    ;
-
-  if (typeof options.filepath === 'string') {
-    // custom filepath for relative paths
-    filename = path.normalize(options.filepath).replace(/\\/g, '/');
-  } else if (options.filename || value.name || value.path) {
-    // custom filename take precedence
-    // formidable and the browser add a name property
-    // fs- and request- streams have path property
-    filename = path.basename(options.filename || value.name || value.path);
-  } else if (value.readable && value.hasOwnProperty('httpVersion')) {
-    // or try http response
-    filename = path.basename(value.client._httpMessage.path);
-  }
-
-  if (filename) {
-    contentDisposition = 'filename="' + filename + '"';
-  }
-
-  return contentDisposition;
-};
-
-FormData.prototype._getContentType = function(value, options) {
-
-  // use custom content-type above all
-  var contentType = options.contentType;
-
-  // or try `name` from formidable, browser
-  if (!contentType && value.name) {
-    contentType = mime.lookup(value.name);
-  }
-
-  // or try `path` from fs-, request- streams
-  if (!contentType && value.path) {
-    contentType = mime.lookup(value.path);
-  }
-
-  // or if it's http-reponse
-  if (!contentType && value.readable && value.hasOwnProperty('httpVersion')) {
-    contentType = value.headers['content-type'];
-  }
-
-  // or guess it from the filepath or filename
-  if (!contentType && (options.filepath || options.filename)) {
-    contentType = mime.lookup(options.filepath || options.filename);
-  }
-
-  // fallback to the default content type if `value` is not simple value
-  if (!contentType && typeof value == 'object') {
-    contentType = FormData.DEFAULT_CONTENT_TYPE;
-  }
-
-  return contentType;
-};
-
-FormData.prototype._multiPartFooter = function() {
-  return function(next) {
-    var footer = FormData.LINE_BREAK;
-
-    var lastPart = (this._streams.length === 0);
-    if (lastPart) {
-      footer += this._lastBoundary();
-    }
-
-    next(footer);
-  }.bind(this);
-};
-
-FormData.prototype._lastBoundary = function() {
-  return '--' + this.getBoundary() + '--' + FormData.LINE_BREAK;
-};
-
-FormData.prototype.getHeaders = function(userHeaders) {
-  var header;
-  var formHeaders = {
-    'content-type': 'multipart/form-data; boundary=' + this.getBoundary()
-  };
-
-  for (header in userHeaders) {
-    if (userHeaders.hasOwnProperty(header)) {
-      formHeaders[header.toLowerCase()] = userHeaders[header];
-    }
-  }
-
-  return formHeaders;
-};
-
-FormData.prototype.getBoundary = function() {
-  if (!this._boundary) {
-    this._generateBoundary();
-  }
-
-  return this._boundary;
-};
-
-FormData.prototype._generateBoundary = function() {
-  // This generates a 50 character boundary similar to those used by Firefox.
-  // They are optimized for boyer-moore parsing.
-  var boundary = '--------------------------';
-  for (var i = 0; i < 24; i++) {
-    boundary += Math.floor(Math.random() * 10).toString(16);
-  }
-
-  this._boundary = boundary;
-};
-
-// Note: getLengthSync DOESN'T calculate streams length
-// As workaround one can calculate file size manually
-// and add it as knownLength option
-FormData.prototype.getLengthSync = function() {
-  var knownLength = this._overheadLength + this._valueLength;
-
-  // Don't get confused, there are 3 "internal" streams for each keyval pair
-  // so it basically checks if there is any value added to the form
-  if (this._streams.length) {
-    knownLength += this._lastBoundary().length;
-  }
-
-  // https://github.com/form-data/form-data/issues/40
-  if (!this.hasKnownLength()) {
-    // Some async length retrievers are present
-    // therefore synchronous length calculation is false.
-    // Please use getLength(callback) to get proper length
-    this._error(new Error('Cannot calculate proper length in synchronous way.'));
-  }
-
-  return knownLength;
-};
-
-// Public API to check if length of added values is known
-// https://github.com/form-data/form-data/issues/196
-// https://github.com/form-data/form-data/issues/262
-FormData.prototype.hasKnownLength = function() {
-  var hasKnownLength = true;
-
-  if (this._valuesToMeasure.length) {
-    hasKnownLength = false;
-  }
-
-  return hasKnownLength;
-};
-
-FormData.prototype.getLength = function(cb) {
-  var knownLength = this._overheadLength + this._valueLength;
-
-  if (this._streams.length) {
-    knownLength += this._lastBoundary().length;
-  }
-
-  if (!this._valuesToMeasure.length) {
-    process.nextTick(cb.bind(this, null, knownLength));
-    return;
-  }
-
-  asynckit.parallel(this._valuesToMeasure, this._lengthRetriever, function(err, values) {
-    if (err) {
-      cb(err);
-      return;
-    }
-
-    values.forEach(function(length) {
-      knownLength += length;
-    });
-
-    cb(null, knownLength);
-  });
-};
-
-FormData.prototype.submit = function(params, cb) {
-  var request
-    , options
-    , defaults = {method: 'post'}
-    ;
-
-  // parse provided url if it's string
-  // or treat it as options object
-  if (typeof params == 'string') {
-
-    params = parseUrl(params);
-    options = populate({
-      port: params.port,
-      path: params.pathname,
-      host: params.hostname,
-      protocol: params.protocol
-    }, defaults);
-
-  // use custom params
-  } else {
-
-    options = populate(params, defaults);
-    // if no port provided use default one
-    if (!options.port) {
-      options.port = options.protocol == 'https:' ? 443 : 80;
-    }
-  }
-
-  // put that good code in getHeaders to some use
-  options.headers = this.getHeaders(params.headers);
-
-  // https if specified, fallback to http in any other case
-  if (options.protocol == 'https:') {
-    request = https.request(options);
-  } else {
-    request = http.request(options);
-  }
-
-  // get content length and fire away
-  this.getLength(function(err, length) {
-    if (err) {
-      this._error(err);
-      return;
-    }
-
-    // add content length
-    request.setHeader('Content-Length', length);
-
-    this.pipe(request);
-    if (cb) {
-      request.on('error', cb);
-      request.on('response', cb.bind(this, null));
-    }
-  }.bind(this));
-
-  return request;
-};
-
-FormData.prototype._error = function(err) {
-  if (!this.error) {
-    this.error = err;
-    this.pause();
-    this.emit('error', err);
-  }
-};
-
-FormData.prototype.toString = function () {
-  return '[object FormData]';
-};
-
-
-/***/ }),
-/* 650 */
-/***/ (function(module, exports) {
-
-// populates missing values
-module.exports = function(dst, src) {
-
-  Object.keys(src).forEach(function(prop)
-  {
-    dst[prop] = dst[prop] || src[prop];
-  });
-
-  return dst;
-};
-
-
-/***/ }),
-/* 651 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(5).constants || __webpack_require__(466)
-
-
-/***/ }),
-/* 652 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * glob-base <https://github.com/jonschlinkert/glob-base>
- *
- * Copyright (c) 2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var path = __webpack_require__(0);
-var parent = __webpack_require__(653);
-var isGlob = __webpack_require__(178);
-
-module.exports = function globBase(pattern) {
-  if (typeof pattern !== 'string') {
-    throw new TypeError('glob-base expects a string.');
-  }
-
-  var res = {};
-  res.base = parent(pattern);
-  res.isGlob = isGlob(pattern);
-
-  if (res.base !== '.') {
-    res.glob = pattern.substr(res.base.length);
-    if (res.glob.charAt(0) === '/') {
-      res.glob = res.glob.substr(1);
-    }
-  } else {
-    res.glob = pattern;
-  }
-
-  if (!res.isGlob) {
-    res.base = dirname(pattern);
-    res.glob = res.base !== '.'
-      ? pattern.substr(res.base.length)
-      : pattern;
-  }
-
-  if (res.glob.substr(0, 2) === './') {
-    res.glob = res.glob.substr(2);
-  }
-  if (res.glob.charAt(0) === '/') {
-    res.glob = res.glob.substr(1);
-  }
-  return res;
-};
-
-function dirname(glob) {
-  if (glob.slice(-1) === '/') return glob;
-  return path.dirname(glob);
-}
-
-
-/***/ }),
-/* 653 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var path = __webpack_require__(0);
-var isglob = __webpack_require__(178);
-
-module.exports = function globParent(str) {
-	str += 'a'; // preserves full path in case of trailing path separator
-	do {str = path.dirname(str)} while (isglob(str));
-	return str;
-};
-
-
-/***/ }),
-/* 654 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stream = __webpack_require__(23).Stream
-
-module.exports = legacy
-
-function legacy (fs) {
-  return {
-    ReadStream: ReadStream,
-    WriteStream: WriteStream
-  }
-
-  function ReadStream (path, options) {
-    if (!(this instanceof ReadStream)) return new ReadStream(path, options);
-
-    Stream.call(this);
-
-    var self = this;
-
-    this.path = path;
-    this.fd = null;
-    this.readable = true;
-    this.paused = false;
-
-    this.flags = 'r';
-    this.mode = 438; /*=0666*/
-    this.bufferSize = 64 * 1024;
-
-    options = options || {};
-
-    // Mixin options into this
-    var keys = Object.keys(options);
-    for (var index = 0, length = keys.length; index < length; index++) {
-      var key = keys[index];
-      this[key] = options[key];
-    }
-
-    if (this.encoding) this.setEncoding(this.encoding);
-
-    if (this.start !== undefined) {
-      if ('number' !== typeof this.start) {
-        throw TypeError('start must be a Number');
-      }
-      if (this.end === undefined) {
-        this.end = Infinity;
-      } else if ('number' !== typeof this.end) {
-        throw TypeError('end must be a Number');
-      }
-
-      if (this.start > this.end) {
-        throw new Error('start must be <= end');
-      }
-
-      this.pos = this.start;
-    }
-
-    if (this.fd !== null) {
-      process.nextTick(function() {
-        self._read();
-      });
-      return;
-    }
-
-    fs.open(this.path, this.flags, this.mode, function (err, fd) {
-      if (err) {
-        self.emit('error', err);
-        self.readable = false;
-        return;
-      }
-
-      self.fd = fd;
-      self.emit('open', fd);
-      self._read();
-    })
-  }
-
-  function WriteStream (path, options) {
-    if (!(this instanceof WriteStream)) return new WriteStream(path, options);
-
-    Stream.call(this);
-
-    this.path = path;
-    this.fd = null;
-    this.writable = true;
-
-    this.flags = 'w';
-    this.encoding = 'binary';
-    this.mode = 438; /*=0666*/
-    this.bytesWritten = 0;
-
-    options = options || {};
-
-    // Mixin options into this
-    var keys = Object.keys(options);
-    for (var index = 0, length = keys.length; index < length; index++) {
-      var key = keys[index];
-      this[key] = options[key];
-    }
-
-    if (this.start !== undefined) {
-      if ('number' !== typeof this.start) {
-        throw TypeError('start must be a Number');
-      }
-      if (this.start < 0) {
-        throw new Error('start must be >= zero');
-      }
-
-      this.pos = this.start;
-    }
-
-    this.busy = false;
-    this._queue = [];
-
-    if (this.fd === null) {
-      this._open = fs.open;
-      this._queue.push([this._open, this.path, this.flags, this.mode, undefined]);
-      this.flush();
-    }
-  }
-}
-
-
-/***/ }),
-/* 655 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var fs = __webpack_require__(390)
-var constants = __webpack_require__(466)
-
-var origCwd = process.cwd
-var cwd = null
-
-var platform = process.env.GRACEFUL_FS_PLATFORM || process.platform
-
-process.cwd = function() {
-  if (!cwd)
-    cwd = origCwd.call(process)
-  return cwd
-}
-try {
-  process.cwd()
-} catch (er) {}
-
-var chdir = process.chdir
-process.chdir = function(d) {
-  cwd = null
-  chdir.call(process, d)
-}
-
-module.exports = patch
-
-function patch (fs) {
-  // (re-)implement some things that are known busted or missing.
-
-  // lchmod, broken prior to 0.6.2
-  // back-port the fix here.
-  if (constants.hasOwnProperty('O_SYMLINK') &&
-      process.version.match(/^v0\.6\.[0-2]|^v0\.5\./)) {
-    patchLchmod(fs)
-  }
-
-  // lutimes implementation, or no-op
-  if (!fs.lutimes) {
-    patchLutimes(fs)
-  }
-
-  // https://github.com/isaacs/node-graceful-fs/issues/4
-  // Chown should not fail on einval or eperm if non-root.
-  // It should not fail on enosys ever, as this just indicates
-  // that a fs doesn't support the intended operation.
-
-  fs.chown = chownFix(fs.chown)
-  fs.fchown = chownFix(fs.fchown)
-  fs.lchown = chownFix(fs.lchown)
-
-  fs.chmod = chmodFix(fs.chmod)
-  fs.fchmod = chmodFix(fs.fchmod)
-  fs.lchmod = chmodFix(fs.lchmod)
-
-  fs.chownSync = chownFixSync(fs.chownSync)
-  fs.fchownSync = chownFixSync(fs.fchownSync)
-  fs.lchownSync = chownFixSync(fs.lchownSync)
-
-  fs.chmodSync = chmodFixSync(fs.chmodSync)
-  fs.fchmodSync = chmodFixSync(fs.fchmodSync)
-  fs.lchmodSync = chmodFixSync(fs.lchmodSync)
-
-  fs.stat = statFix(fs.stat)
-  fs.fstat = statFix(fs.fstat)
-  fs.lstat = statFix(fs.lstat)
-
-  fs.statSync = statFixSync(fs.statSync)
-  fs.fstatSync = statFixSync(fs.fstatSync)
-  fs.lstatSync = statFixSync(fs.lstatSync)
-
-  // if lchmod/lchown do not exist, then make them no-ops
-  if (!fs.lchmod) {
-    fs.lchmod = function (path, mode, cb) {
-      if (cb) process.nextTick(cb)
-    }
-    fs.lchmodSync = function () {}
-  }
-  if (!fs.lchown) {
-    fs.lchown = function (path, uid, gid, cb) {
-      if (cb) process.nextTick(cb)
-    }
-    fs.lchownSync = function () {}
-  }
-
-  // on Windows, A/V software can lock the directory, causing this
-  // to fail with an EACCES or EPERM if the directory contains newly
-  // created files.  Try again on failure, for up to 60 seconds.
-
-  // Set the timeout this long because some Windows Anti-Virus, such as Parity
-  // bit9, may lock files for up to a minute, causing npm package install
-  // failures. Also, take care to yield the scheduler. Windows scheduling gives
-  // CPU to a busy looping process, which can cause the program causing the lock
-  // contention to be starved of CPU by node, so the contention doesn't resolve.
-  if (platform === "win32") {
-    fs.rename = (function (fs$rename) { return function (from, to, cb) {
-      var start = Date.now()
-      var backoff = 0;
-      fs$rename(from, to, function CB (er) {
-        if (er
-            && (er.code === "EACCES" || er.code === "EPERM")
-            && Date.now() - start < 60000) {
-          setTimeout(function() {
-            fs.stat(to, function (stater, st) {
-              if (stater && stater.code === "ENOENT")
-                fs$rename(from, to, CB);
-              else
-                cb(er)
-            })
-          }, backoff)
-          if (backoff < 100)
-            backoff += 10;
-          return;
-        }
-        if (cb) cb(er)
-      })
-    }})(fs.rename)
-  }
-
-  // if read() returns EAGAIN, then just try it again.
-  fs.read = (function (fs$read) { return function (fd, buffer, offset, length, position, callback_) {
-    var callback
-    if (callback_ && typeof callback_ === 'function') {
-      var eagCounter = 0
-      callback = function (er, _, __) {
-        if (er && er.code === 'EAGAIN' && eagCounter < 10) {
-          eagCounter ++
-          return fs$read.call(fs, fd, buffer, offset, length, position, callback)
-        }
-        callback_.apply(this, arguments)
-      }
-    }
-    return fs$read.call(fs, fd, buffer, offset, length, position, callback)
-  }})(fs.read)
-
-  fs.readSync = (function (fs$readSync) { return function (fd, buffer, offset, length, position) {
-    var eagCounter = 0
-    while (true) {
-      try {
-        return fs$readSync.call(fs, fd, buffer, offset, length, position)
-      } catch (er) {
-        if (er.code === 'EAGAIN' && eagCounter < 10) {
-          eagCounter ++
-          continue
-        }
-        throw er
-      }
-    }
-  }})(fs.readSync)
-}
-
-function patchLchmod (fs) {
-  fs.lchmod = function (path, mode, callback) {
-    fs.open( path
-           , constants.O_WRONLY | constants.O_SYMLINK
-           , mode
-           , function (err, fd) {
-      if (err) {
-        if (callback) callback(err)
-        return
-      }
-      // prefer to return the chmod error, if one occurs,
-      // but still try to close, and report closing errors if they occur.
-      fs.fchmod(fd, mode, function (err) {
-        fs.close(fd, function(err2) {
-          if (callback) callback(err || err2)
-        })
-      })
-    })
-  }
-
-  fs.lchmodSync = function (path, mode) {
-    var fd = fs.openSync(path, constants.O_WRONLY | constants.O_SYMLINK, mode)
-
-    // prefer to return the chmod error, if one occurs,
-    // but still try to close, and report closing errors if they occur.
-    var threw = true
-    var ret
-    try {
-      ret = fs.fchmodSync(fd, mode)
-      threw = false
-    } finally {
-      if (threw) {
-        try {
-          fs.closeSync(fd)
-        } catch (er) {}
-      } else {
-        fs.closeSync(fd)
-      }
-    }
-    return ret
-  }
-}
-
-function patchLutimes (fs) {
-  if (constants.hasOwnProperty("O_SYMLINK")) {
-    fs.lutimes = function (path, at, mt, cb) {
-      fs.open(path, constants.O_SYMLINK, function (er, fd) {
-        if (er) {
-          if (cb) cb(er)
-          return
-        }
-        fs.futimes(fd, at, mt, function (er) {
-          fs.close(fd, function (er2) {
-            if (cb) cb(er || er2)
-          })
-        })
-      })
-    }
-
-    fs.lutimesSync = function (path, at, mt) {
-      var fd = fs.openSync(path, constants.O_SYMLINK)
-      var ret
-      var threw = true
-      try {
-        ret = fs.futimesSync(fd, at, mt)
-        threw = false
-      } finally {
-        if (threw) {
-          try {
-            fs.closeSync(fd)
-          } catch (er) {}
-        } else {
-          fs.closeSync(fd)
-        }
-      }
-      return ret
-    }
-
-  } else {
-    fs.lutimes = function (_a, _b, _c, cb) { if (cb) process.nextTick(cb) }
-    fs.lutimesSync = function () {}
-  }
-}
-
-function chmodFix (orig) {
-  if (!orig) return orig
-  return function (target, mode, cb) {
-    return orig.call(fs, target, mode, function (er) {
-      if (chownErOk(er)) er = null
-      if (cb) cb.apply(this, arguments)
-    })
-  }
-}
-
-function chmodFixSync (orig) {
-  if (!orig) return orig
-  return function (target, mode) {
-    try {
-      return orig.call(fs, target, mode)
-    } catch (er) {
-      if (!chownErOk(er)) throw er
-    }
-  }
-}
-
-
-function chownFix (orig) {
-  if (!orig) return orig
-  return function (target, uid, gid, cb) {
-    return orig.call(fs, target, uid, gid, function (er) {
-      if (chownErOk(er)) er = null
-      if (cb) cb.apply(this, arguments)
-    })
-  }
-}
-
-function chownFixSync (orig) {
-  if (!orig) return orig
-  return function (target, uid, gid) {
-    try {
-      return orig.call(fs, target, uid, gid)
-    } catch (er) {
-      if (!chownErOk(er)) throw er
-    }
-  }
-}
-
-
-function statFix (orig) {
-  if (!orig) return orig
-  // Older versions of Node erroneously returned signed integers for
-  // uid + gid.
-  return function (target, cb) {
-    return orig.call(fs, target, function (er, stats) {
-      if (!stats) return cb.apply(this, arguments)
-      if (stats.uid < 0) stats.uid += 0x100000000
-      if (stats.gid < 0) stats.gid += 0x100000000
-      if (cb) cb.apply(this, arguments)
-    })
-  }
-}
-
-function statFixSync (orig) {
-  if (!orig) return orig
-  // Older versions of Node erroneously returned signed integers for
-  // uid + gid.
-  return function (target) {
-    var stats = orig.call(fs, target)
-    if (stats.uid < 0) stats.uid += 0x100000000
-    if (stats.gid < 0) stats.gid += 0x100000000
-    return stats;
-  }
-}
-
-// ENOSYS means that the fs doesn't support the op. Just ignore
-// that, because it doesn't matter.
-//
-// if there's no getuid, or if getuid() is something other
-// than 0, and the error is EINVAL or EPERM, then just ignore
-// it.
-//
-// This specific case is a silent failure in cp, install, tar,
-// and most other unix tools that manage permissions.
-//
-// When running as root, or if other types of errors are
-// encountered, then it's strict.
-function chownErOk (er) {
-  if (!er)
-    return true
-
-  if (er.code === "ENOSYS")
-    return true
-
-  var nonroot = !process.getuid || process.getuid() !== 0
-  if (nonroot) {
-    if (er.code === "EINVAL" || er.code === "EPERM")
-      return true
-  }
-
-  return false
-}
-
-
-/***/ }),
-/* 656 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var zlib = __webpack_require__(198)
-var peek = __webpack_require__(775)
-var through = __webpack_require__(461)
-var pumpify = __webpack_require__(782)
-var isGzip = __webpack_require__(737)
-var isDeflate = __webpack_require__(732)
-
-var isCompressed = function (data) {
-  if (isGzip(data)) return 1
-  if (isDeflate(data)) return 2
-  return 0
-}
-
-var gunzip = function (maxRecursion) {
-  if (!(maxRecursion >= 0)) maxRecursion = 3
-
-  return peek({newline: false, maxBuffer: 10}, function (data, swap) {
-    if (maxRecursion < 0) return swap(new Error('Maximum recursion reached'))
-    switch (isCompressed(data)) {
-      case 1:
-        swap(null, pumpify(zlib.createGunzip(), gunzip(maxRecursion - 1)))
-        break
-      case 2:
-        swap(null, pumpify(zlib.createInflate(), gunzip(maxRecursion - 1)))
-        break
-      default:
-        swap(null, through())
-    }
-  })
-}
-
-module.exports = gunzip
-
-
-/***/ }),
-/* 657 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"afterRequest.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","optional":true,"required":["lastAccess","eTag","hitCount"],"properties":{"expires":{"type":"string","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))?"},"lastAccess":{"type":"string","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))?"},"eTag":{"type":"string"},"hitCount":{"type":"integer"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 658 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"beforeRequest.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","optional":true,"required":["lastAccess","eTag","hitCount"],"properties":{"expires":{"type":"string","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))?"},"lastAccess":{"type":"string","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))?"},"eTag":{"type":"string"},"hitCount":{"type":"integer"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 659 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"browser.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["name","version"],"properties":{"name":{"type":"string"},"version":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 660 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"cache.json#","$schema":"http://json-schema.org/draft-06/schema#","properties":{"beforeRequest":{"oneOf":[{"type":"null"},{"$ref":"beforeRequest.json#"}]},"afterRequest":{"oneOf":[{"type":"null"},{"$ref":"afterRequest.json#"}]},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 661 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"content.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["size","mimeType"],"properties":{"size":{"type":"integer"},"compression":{"type":"integer"},"mimeType":{"type":"string"},"text":{"type":"string"},"encoding":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 662 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"cookie.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["name","value"],"properties":{"name":{"type":"string"},"value":{"type":"string"},"path":{"type":"string"},"domain":{"type":"string"},"expires":{"type":["string","null"],"format":"date-time"},"httpOnly":{"type":"boolean"},"secure":{"type":"boolean"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 663 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"creator.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["name","version"],"properties":{"name":{"type":"string"},"version":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 664 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"entry.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","optional":true,"required":["startedDateTime","time","request","response","cache","timings"],"properties":{"pageref":{"type":"string"},"startedDateTime":{"type":"string","format":"date-time","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))"},"time":{"type":"number","min":0},"request":{"$ref":"request.json#"},"response":{"$ref":"response.json#"},"cache":{"$ref":"cache.json#"},"timings":{"$ref":"timings.json#"},"serverIPAddress":{"type":"string","oneOf":[{"format":"ipv4"},{"format":"ipv6"}]},"connection":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 665 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"har.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["log"],"properties":{"log":{"$ref":"log.json#"}}}
-
-/***/ }),
-/* 666 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"header.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["name","value"],"properties":{"name":{"type":"string"},"value":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 667 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-module.exports = {
-  afterRequest: __webpack_require__(657),
-  beforeRequest: __webpack_require__(658),
-  browser: __webpack_require__(659),
-  cache: __webpack_require__(660),
-  content: __webpack_require__(661),
-  cookie: __webpack_require__(662),
-  creator: __webpack_require__(663),
-  entry: __webpack_require__(664),
-  har: __webpack_require__(665),
-  header: __webpack_require__(666),
-  log: __webpack_require__(668),
-  page: __webpack_require__(669),
-  pageTimings: __webpack_require__(670),
-  postData: __webpack_require__(671),
-  query: __webpack_require__(672),
-  request: __webpack_require__(673),
-  response: __webpack_require__(674),
-  timings: __webpack_require__(675)
-}
-
-
-/***/ }),
-/* 668 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"log.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["version","creator","entries"],"properties":{"version":{"type":"string"},"creator":{"$ref":"creator.json#"},"browser":{"$ref":"browser.json#"},"pages":{"type":"array","items":{"$ref":"page.json#"}},"entries":{"type":"array","items":{"$ref":"entry.json#"}},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 669 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"page.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","optional":true,"required":["startedDateTime","id","title","pageTimings"],"properties":{"startedDateTime":{"type":"string","format":"date-time","pattern":"^(\\d{4})(-)?(\\d\\d)(-)?(\\d\\d)(T)?(\\d\\d)(:)?(\\d\\d)(:)?(\\d\\d)(\\.\\d+)?(Z|([+-])(\\d\\d)(:)?(\\d\\d))"},"id":{"type":"string","unique":true},"title":{"type":"string"},"pageTimings":{"$ref":"pageTimings.json#"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 670 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"pageTimings.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","properties":{"onContentLoad":{"type":"number","min":-1},"onLoad":{"type":"number","min":-1},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 671 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"postData.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","optional":true,"required":["mimeType"],"properties":{"mimeType":{"type":"string"},"text":{"type":"string"},"params":{"type":"array","required":["name"],"properties":{"name":{"type":"string"},"value":{"type":"string"},"fileName":{"type":"string"},"contentType":{"type":"string"},"comment":{"type":"string"}}},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 672 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"query.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["name","value"],"properties":{"name":{"type":"string"},"value":{"type":"string"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 673 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"request.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["method","url","httpVersion","cookies","headers","queryString","headersSize","bodySize"],"properties":{"method":{"type":"string"},"url":{"type":"string","format":"uri"},"httpVersion":{"type":"string"},"cookies":{"type":"array","items":{"$ref":"cookie.json#"}},"headers":{"type":"array","items":{"$ref":"header.json#"}},"queryString":{"type":"array","items":{"$ref":"query.json#"}},"postData":{"$ref":"postData.json#"},"headersSize":{"type":"integer"},"bodySize":{"type":"integer"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 674 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"response.json#","$schema":"http://json-schema.org/draft-06/schema#","type":"object","required":["status","statusText","httpVersion","cookies","headers","content","redirectURL","headersSize","bodySize"],"properties":{"status":{"type":"integer"},"statusText":{"type":"string"},"httpVersion":{"type":"string"},"cookies":{"type":"array","items":{"$ref":"cookie.json#"}},"headers":{"type":"array","items":{"$ref":"header.json#"}},"content":{"$ref":"content.json#"},"redirectURL":{"type":"string"},"headersSize":{"type":"integer"},"bodySize":{"type":"integer"},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 675 */
-/***/ (function(module, exports) {
-
-module.exports = {"$id":"timings.json#","$schema":"http://json-schema.org/draft-06/schema#","required":["send","wait","receive"],"properties":{"dns":{"type":"number","min":-1},"connect":{"type":"number","min":-1},"blocked":{"type":"number","min":-1},"send":{"type":"number","min":-1},"wait":{"type":"number","min":-1},"receive":{"type":"number","min":-1},"ssl":{"type":"number","min":-1},"comment":{"type":"string"}}}
-
-/***/ }),
-/* 676 */
-/***/ (function(module, exports) {
-
-function HARError (errors) {
-  var message = 'validation failed'
-
-  this.name = 'HARError'
-  this.message = message
-  this.errors = errors
-
-  if (typeof Error.captureStackTrace === 'function') {
-    Error.captureStackTrace(this, this.constructor)
-  } else {
-    this.stack = (new Error(message)).stack
-  }
-}
-
-HARError.prototype = Error.prototype
-
-module.exports = HARError
-
-
-/***/ }),
-/* 677 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Ajv = __webpack_require__(473)
-var HARError = __webpack_require__(676)
-var schemas = __webpack_require__(667)
-
-var ajv
-
-function validate (name, data) {
-  data = data || {}
-
-  // validator config
-  ajv = ajv || new Ajv({
-    allErrors: true,
-    schemas: schemas
-  })
-
-  var validate = ajv.getSchema(name + '.json')
-
-  return new Promise(function (resolve, reject) {
-    var valid = validate(data)
-
-    !valid ? reject(new HARError(validate.errors)) : resolve(data)
-  })
-}
-
-exports.afterRequest = function (data) {
-  return validate('afterRequest', data)
-}
-
-exports.beforeRequest = function (data) {
-  return validate('beforeRequest', data)
-}
-
-exports.browser = function (data) {
-  return validate('browser', data)
-}
-
-exports.cache = function (data) {
-  return validate('cache', data)
-}
-
-exports.content = function (data) {
-  return validate('content', data)
-}
-
-exports.cookie = function (data) {
-  return validate('cookie', data)
-}
-
-exports.creator = function (data) {
-  return validate('creator', data)
-}
-
-exports.entry = function (data) {
-  return validate('entry', data)
-}
-
-exports.har = function (data) {
-  return validate('har', data)
-}
-
-exports.header = function (data) {
-  return validate('header', data)
-}
-
-exports.log = function (data) {
-  return validate('log', data)
-}
-
-exports.page = function (data) {
-  return validate('page', data)
-}
-
-exports.pageTimings = function (data) {
-  return validate('pageTimings', data)
-}
-
-exports.postData = function (data) {
-  return validate('postData', data)
-}
-
-exports.query = function (data) {
-  return validate('query', data)
-}
-
-exports.request = function (data) {
-  return validate('request', data)
-}
-
-exports.response = function (data) {
-  return validate('response', data)
-}
-
-exports.timings = function (data) {
-  return validate('timings', data)
-}
-
-
-/***/ }),
-/* 678 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var pkg = __webpack_require__(944);
-
-/* @private
- *
- * constructs a set of all dependencies recursively
- *
- * @method depsFor
- * @param {String} name of package to assemble unique deps for
- * @param {String} dir (optional) path to begin resolving from
- * @return {Array} a unique set of all deps
- */
-module.exports = function depsFor(name, dir) {
-  var dependencies = [];
-  var visited = Object.create(null);
-
-  (function again(name, dir) {
-    var thePackage = pkg(name, dir);
-
-    if (thePackage === null) { return; }
-
-    var key = thePackage.name + thePackage.version + thePackage.baseDir;
-
-    if (visited[key]) { return; }
-    visited[key] = true;
-
-    dependencies.push(thePackage);
-
-    return Object.keys(thePackage.dependencies || {}).forEach(function(dep) {
-      again(dep, thePackage.baseDir);
-    });
-  }(name, dir));
-
-  return dependencies;
-};
-
-
-
-/***/ }),
-/* 679 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var resolve = __webpack_require__(814);
-var path = __webpack_require__(0);
-
-/* @private
- *
- * @method resolvePkg
- * @param {String} name
- * @param {String} dir
- * @return {String}
- */
-module.exports = function resolvePkg(name, dir) {
-  if (name === './') {
-    return path.resolve(name, 'package.json');
-  }
-
-  if (name[name.length - 1] !== '/') {
-    name += '/';
-  }
-
-  if (name.charAt(0) === '/') {
-    return name + 'package.json';
-  }
-
-  try {
-    return resolve.sync(name + 'package.json', {
-      basedir: dir || __dirname,
-      preserveSymlinks: false
-    });
-  } catch(err) {
-    if (err.code === 'MODULE_NOT_FOUND') {
-      return null;
-    }
-
-    throw err;
-  }
-};
-
-
-/***/ }),
-/* 680 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-var parser = __webpack_require__(681);
-var signer = __webpack_require__(682);
-var verify = __webpack_require__(683);
-var utils = __webpack_require__(174);
-
-
-
-///--- API
-
-module.exports = {
-
-  parse: parser.parseRequest,
-  parseRequest: parser.parseRequest,
-
-  sign: signer.signRequest,
-  signRequest: signer.signRequest,
-  createSigner: signer.createSigner,
-  isSigner: signer.isSigner,
-
-  sshKeyToPEM: utils.sshKeyToPEM,
-  sshKeyFingerprint: utils.fingerprint,
-  pemToRsaSSHKey: utils.pemToRsaSSHKey,
-
-  verify: verify.verifySignature,
-  verifySignature: verify.verifySignature,
-  verifyHMAC: verify.verifyHMAC
-};
-
-
-/***/ }),
-/* 681 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2012 Joyent, Inc.  All rights reserved.
-
-var assert = __webpack_require__(16);
-var util = __webpack_require__(3);
-var utils = __webpack_require__(174);
-
-
-
-///--- Globals
-
-var HASH_ALGOS = utils.HASH_ALGOS;
-var PK_ALGOS = utils.PK_ALGOS;
-var HttpSignatureError = utils.HttpSignatureError;
-var InvalidAlgorithmError = utils.InvalidAlgorithmError;
-var validateAlgorithm = utils.validateAlgorithm;
-
-var State = {
-  New: 0,
-  Params: 1
-};
-
-var ParamsState = {
-  Name: 0,
-  Quote: 1,
-  Value: 2,
-  Comma: 3
-};
-
-
-///--- Specific Errors
-
-
-function ExpiredRequestError(message) {
-  HttpSignatureError.call(this, message, ExpiredRequestError);
-}
-util.inherits(ExpiredRequestError, HttpSignatureError);
-
-
-function InvalidHeaderError(message) {
-  HttpSignatureError.call(this, message, InvalidHeaderError);
-}
-util.inherits(InvalidHeaderError, HttpSignatureError);
-
-
-function InvalidParamsError(message) {
-  HttpSignatureError.call(this, message, InvalidParamsError);
-}
-util.inherits(InvalidParamsError, HttpSignatureError);
-
-
-function MissingHeaderError(message) {
-  HttpSignatureError.call(this, message, MissingHeaderError);
-}
-util.inherits(MissingHeaderError, HttpSignatureError);
-
-function StrictParsingError(message) {
-  HttpSignatureError.call(this, message, StrictParsingError);
-}
-util.inherits(StrictParsingError, HttpSignatureError);
-
-///--- Exported API
-
-module.exports = {
-
-  /**
-   * Parses the 'Authorization' header out of an http.ServerRequest object.
-   *
-   * Note that this API will fully validate the Authorization header, and throw
-   * on any error.  It will not however check the signature, or the keyId format
-   * as those are specific to your environment.  You can use the options object
-   * to pass in extra constraints.
-   *
-   * As a response object you can expect this:
-   *
-   *     {
-   *       "scheme": "Signature",
-   *       "params": {
-   *         "keyId": "foo",
-   *         "algorithm": "rsa-sha256",
-   *         "headers": [
-   *           "date" or "x-date",
-   *           "digest"
-   *         ],
-   *         "signature": "base64"
-   *       },
-   *       "signingString": "ready to be passed to crypto.verify()"
-   *     }
-   *
-   * @param {Object} request an http.ServerRequest.
-   * @param {Object} options an optional options object with:
-   *                   - clockSkew: allowed clock skew in seconds (default 300).
-   *                   - headers: required header names (def: date or x-date)
-   *                   - algorithms: algorithms to support (default: all).
-   *                   - strict: should enforce latest spec parsing
-   *                             (default: false).
-   * @return {Object} parsed out object (see above).
-   * @throws {TypeError} on invalid input.
-   * @throws {InvalidHeaderError} on an invalid Authorization header error.
-   * @throws {InvalidParamsError} if the params in the scheme are invalid.
-   * @throws {MissingHeaderError} if the params indicate a header not present,
-   *                              either in the request headers from the params,
-   *                              or not in the params from a required header
-   *                              in options.
-   * @throws {StrictParsingError} if old attributes are used in strict parsing
-   *                              mode.
-   * @throws {ExpiredRequestError} if the value of date or x-date exceeds skew.
-   */
-  parseRequest: function parseRequest(request, options) {
-    assert.object(request, 'request');
-    assert.object(request.headers, 'request.headers');
-    if (options === undefined) {
-      options = {};
-    }
-    if (options.headers === undefined) {
-      options.headers = [request.headers['x-date'] ? 'x-date' : 'date'];
-    }
-    assert.object(options, 'options');
-    assert.arrayOfString(options.headers, 'options.headers');
-    assert.optionalFinite(options.clockSkew, 'options.clockSkew');
-
-    var authzHeaderName = options.authorizationHeaderName || 'authorization';
-
-    if (!request.headers[authzHeaderName]) {
-      throw new MissingHeaderError('no ' + authzHeaderName + ' header ' +
-                                   'present in the request');
-    }
-
-    options.clockSkew = options.clockSkew || 300;
-
-
-    var i = 0;
-    var state = State.New;
-    var substate = ParamsState.Name;
-    var tmpName = '';
-    var tmpValue = '';
-
-    var parsed = {
-      scheme: '',
-      params: {},
-      signingString: ''
-    };
-
-    var authz = request.headers[authzHeaderName];
-    for (i = 0; i < authz.length; i++) {
-      var c = authz.charAt(i);
-
-      switch (Number(state)) {
-
-      case State.New:
-        if (c !== ' ') parsed.scheme += c;
-        else state = State.Params;
-        break;
-
-      case State.Params:
-        switch (Number(substate)) {
-
-        case ParamsState.Name:
-          var code = c.charCodeAt(0);
-          // restricted name of A-Z / a-z
-          if ((code >= 0x41 && code <= 0x5a) || // A-Z
-              (code >= 0x61 && code <= 0x7a)) { // a-z
-            tmpName += c;
-          } else if (c === '=') {
-            if (tmpName.length === 0)
-              throw new InvalidHeaderError('bad param format');
-            substate = ParamsState.Quote;
-          } else {
-            throw new InvalidHeaderError('bad param format');
-          }
-          break;
-
-        case ParamsState.Quote:
-          if (c === '"') {
-            tmpValue = '';
-            substate = ParamsState.Value;
-          } else {
-            throw new InvalidHeaderError('bad param format');
-          }
-          break;
-
-        case ParamsState.Value:
-          if (c === '"') {
-            parsed.params[tmpName] = tmpValue;
-            substate = ParamsState.Comma;
-          } else {
-            tmpValue += c;
-          }
-          break;
-
-        case ParamsState.Comma:
-          if (c === ',') {
-            tmpName = '';
-            substate = ParamsState.Name;
-          } else {
-            throw new InvalidHeaderError('bad param format');
-          }
-          break;
-
-        default:
-          throw new Error('Invalid substate');
-        }
-        break;
-
-      default:
-        throw new Error('Invalid substate');
-      }
-
-    }
-
-    if (!parsed.params.headers || parsed.params.headers === '') {
-      if (request.headers['x-date']) {
-        parsed.params.headers = ['x-date'];
-      } else {
-        parsed.params.headers = ['date'];
-      }
-    } else {
-      parsed.params.headers = parsed.params.headers.split(' ');
-    }
-
-    // Minimally validate the parsed object
-    if (!parsed.scheme || parsed.scheme !== 'Signature')
-      throw new InvalidHeaderError('scheme was not "Signature"');
-
-    if (!parsed.params.keyId)
-      throw new InvalidHeaderError('keyId was not specified');
-
-    if (!parsed.params.algorithm)
-      throw new InvalidHeaderError('algorithm was not specified');
-
-    if (!parsed.params.signature)
-      throw new InvalidHeaderError('signature was not specified');
-
-    // Check the algorithm against the official list
-    parsed.params.algorithm = parsed.params.algorithm.toLowerCase();
-    try {
-      validateAlgorithm(parsed.params.algorithm);
-    } catch (e) {
-      if (e instanceof InvalidAlgorithmError)
-        throw (new InvalidParamsError(parsed.params.algorithm + ' is not ' +
-          'supported'));
-      else
-        throw (e);
-    }
-
-    // Build the signingString
-    for (i = 0; i < parsed.params.headers.length; i++) {
-      var h = parsed.params.headers[i].toLowerCase();
-      parsed.params.headers[i] = h;
-
-      if (h === 'request-line') {
-        if (!options.strict) {
-          /*
-           * We allow headers from the older spec drafts if strict parsing isn't
-           * specified in options.
-           */
-          parsed.signingString +=
-            request.method + ' ' + request.url + ' HTTP/' + request.httpVersion;
-        } else {
-          /* Strict parsing doesn't allow older draft headers. */
-          throw (new StrictParsingError('request-line is not a valid header ' +
-            'with strict parsing enabled.'));
-        }
-      } else if (h === '(request-target)') {
-        parsed.signingString +=
-          '(request-target): ' + request.method.toLowerCase() + ' ' +
-          request.url;
-      } else {
-        var value = request.headers[h];
-        if (value === undefined)
-          throw new MissingHeaderError(h + ' was not in the request');
-        parsed.signingString += h + ': ' + value;
-      }
-
-      if ((i + 1) < parsed.params.headers.length)
-        parsed.signingString += '\n';
-    }
-
-    // Check against the constraints
-    var date;
-    if (request.headers.date || request.headers['x-date']) {
-        if (request.headers['x-date']) {
-          date = new Date(request.headers['x-date']);
-        } else {
-          date = new Date(request.headers.date);
-        }
-      var now = new Date();
-      var skew = Math.abs(now.getTime() - date.getTime());
-
-      if (skew > options.clockSkew * 1000) {
-        throw new ExpiredRequestError('clock skew of ' +
-                                      (skew / 1000) +
-                                      's was greater than ' +
-                                      options.clockSkew + 's');
-      }
-    }
-
-    options.headers.forEach(function (hdr) {
-      // Remember that we already checked any headers in the params
-      // were in the request, so if this passes we're good.
-      if (parsed.params.headers.indexOf(hdr.toLowerCase()) < 0)
-        throw new MissingHeaderError(hdr + ' was not a signed header');
-    });
-
-    if (options.algorithms) {
-      if (options.algorithms.indexOf(parsed.params.algorithm) === -1)
-        throw new InvalidParamsError(parsed.params.algorithm +
-                                     ' is not a supported algorithm');
-    }
-
-    parsed.algorithm = parsed.params.algorithm.toUpperCase();
-    parsed.keyId = parsed.params.keyId;
-    return parsed;
-  }
-
-};
-
-
-/***/ }),
-/* 682 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2012 Joyent, Inc.  All rights reserved.
-
-var assert = __webpack_require__(16);
-var crypto = __webpack_require__(11);
-var http = __webpack_require__(87);
-var util = __webpack_require__(3);
-var sshpk = __webpack_require__(328);
-var jsprim = __webpack_require__(746);
-var utils = __webpack_require__(174);
-
-var sprintf = __webpack_require__(3).format;
-
-var HASH_ALGOS = utils.HASH_ALGOS;
-var PK_ALGOS = utils.PK_ALGOS;
-var InvalidAlgorithmError = utils.InvalidAlgorithmError;
-var HttpSignatureError = utils.HttpSignatureError;
-var validateAlgorithm = utils.validateAlgorithm;
-
-///--- Globals
-
-var AUTHZ_FMT =
-  'Signature keyId="%s",algorithm="%s",headers="%s",signature="%s"';
-
-///--- Specific Errors
-
-function MissingHeaderError(message) {
-  HttpSignatureError.call(this, message, MissingHeaderError);
-}
-util.inherits(MissingHeaderError, HttpSignatureError);
-
-function StrictParsingError(message) {
-  HttpSignatureError.call(this, message, StrictParsingError);
-}
-util.inherits(StrictParsingError, HttpSignatureError);
-
-/* See createSigner() */
-function RequestSigner(options) {
-  assert.object(options, 'options');
-
-  var alg = [];
-  if (options.algorithm !== undefined) {
-    assert.string(options.algorithm, 'options.algorithm');
-    alg = validateAlgorithm(options.algorithm);
-  }
-  this.rs_alg = alg;
-
-  /*
-   * RequestSigners come in two varieties: ones with an rs_signFunc, and ones
-   * with an rs_signer.
-   *
-   * rs_signFunc-based RequestSigners have to build up their entire signing
-   * string within the rs_lines array and give it to rs_signFunc as a single
-   * concat'd blob. rs_signer-based RequestSigners can add a line at a time to
-   * their signing state by using rs_signer.update(), thus only needing to
-   * buffer the hash function state and one line at a time.
-   */
-  if (options.sign !== undefined) {
-    assert.func(options.sign, 'options.sign');
-    this.rs_signFunc = options.sign;
-
-  } else if (alg[0] === 'hmac' && options.key !== undefined) {
-    assert.string(options.keyId, 'options.keyId');
-    this.rs_keyId = options.keyId;
-
-    if (typeof (options.key) !== 'string' && !Buffer.isBuffer(options.key))
-      throw (new TypeError('options.key for HMAC must be a string or Buffer'));
-
-    /*
-     * Make an rs_signer for HMACs, not a rs_signFunc -- HMACs digest their
-     * data in chunks rather than requiring it all to be given in one go
-     * at the end, so they are more similar to signers than signFuncs.
-     */
-    this.rs_signer = crypto.createHmac(alg[1].toUpperCase(), options.key);
-    this.rs_signer.sign = function () {
-      var digest = this.digest('base64');
-      return ({
-        hashAlgorithm: alg[1],
-        toString: function () { return (digest); }
-      });
-    };
-
-  } else if (options.key !== undefined) {
-    var key = options.key;
-    if (typeof (key) === 'string' || Buffer.isBuffer(key))
-      key = sshpk.parsePrivateKey(key);
-
-    assert.ok(sshpk.PrivateKey.isPrivateKey(key, [1, 2]),
-      'options.key must be a sshpk.PrivateKey');
-    this.rs_key = key;
-
-    assert.string(options.keyId, 'options.keyId');
-    this.rs_keyId = options.keyId;
-
-    if (!PK_ALGOS[key.type]) {
-      throw (new InvalidAlgorithmError(key.type.toUpperCase() + ' type ' +
-        'keys are not supported'));
-    }
-
-    if (alg[0] !== undefined && key.type !== alg[0]) {
-      throw (new InvalidAlgorithmError('options.key must be a ' +
-        alg[0].toUpperCase() + ' key, was given a ' +
-        key.type.toUpperCase() + ' key instead'));
-    }
-
-    this.rs_signer = key.createSign(alg[1]);
-
-  } else {
-    throw (new TypeError('options.sign (func) or options.key is required'));
-  }
-
-  this.rs_headers = [];
-  this.rs_lines = [];
-}
-
-/**
- * Adds a header to be signed, with its value, into this signer.
- *
- * @param {String} header
- * @param {String} value
- * @return {String} value written
- */
-RequestSigner.prototype.writeHeader = function (header, value) {
-  assert.string(header, 'header');
-  header = header.toLowerCase();
-  assert.string(value, 'value');
-
-  this.rs_headers.push(header);
-
-  if (this.rs_signFunc) {
-    this.rs_lines.push(header + ': ' + value);
-
-  } else {
-    var line = header + ': ' + value;
-    if (this.rs_headers.length > 0)
-      line = '\n' + line;
-    this.rs_signer.update(line);
-  }
-
-  return (value);
-};
-
-/**
- * Adds a default Date header, returning its value.
- *
- * @return {String}
- */
-RequestSigner.prototype.writeDateHeader = function () {
-  return (this.writeHeader('date', jsprim.rfc1123(new Date())));
-};
-
-/**
- * Adds the request target line to be signed.
- *
- * @param {String} method, HTTP method (e.g. 'get', 'post', 'put')
- * @param {String} path
- */
-RequestSigner.prototype.writeTarget = function (method, path) {
-  assert.string(method, 'method');
-  assert.string(path, 'path');
-  method = method.toLowerCase();
-  this.writeHeader('(request-target)', method + ' ' + path);
-};
-
-/**
- * Calculate the value for the Authorization header on this request
- * asynchronously.
- *
- * @param {Func} callback (err, authz)
- */
-RequestSigner.prototype.sign = function (cb) {
-  assert.func(cb, 'callback');
-
-  if (this.rs_headers.length < 1)
-    throw (new Error('At least one header must be signed'));
-
-  var alg, authz;
-  if (this.rs_signFunc) {
-    var data = this.rs_lines.join('\n');
-    var self = this;
-    this.rs_signFunc(data, function (err, sig) {
-      if (err) {
-        cb(err);
-        return;
-      }
-      try {
-        assert.object(sig, 'signature');
-        assert.string(sig.keyId, 'signature.keyId');
-        assert.string(sig.algorithm, 'signature.algorithm');
-        assert.string(sig.signature, 'signature.signature');
-        alg = validateAlgorithm(sig.algorithm);
-
-        authz = sprintf(AUTHZ_FMT,
-          sig.keyId,
-          sig.algorithm,
-          self.rs_headers.join(' '),
-          sig.signature);
-      } catch (e) {
-        cb(e);
-        return;
-      }
-      cb(null, authz);
-    });
-
-  } else {
-    try {
-      var sigObj = this.rs_signer.sign();
-    } catch (e) {
-      cb(e);
-      return;
-    }
-    alg = (this.rs_alg[0] || this.rs_key.type) + '-' + sigObj.hashAlgorithm;
-    var signature = sigObj.toString();
-    authz = sprintf(AUTHZ_FMT,
-      this.rs_keyId,
-      alg,
-      this.rs_headers.join(' '),
-      signature);
-    cb(null, authz);
-  }
-};
-
-///--- Exported API
-
-module.exports = {
-  /**
-   * Identifies whether a given object is a request signer or not.
-   *
-   * @param {Object} object, the object to identify
-   * @returns {Boolean}
-   */
-  isSigner: function (obj) {
-    if (typeof (obj) === 'object' && obj instanceof RequestSigner)
-      return (true);
-    return (false);
-  },
-
-  /**
-   * Creates a request signer, used to asynchronously build a signature
-   * for a request (does not have to be an http.ClientRequest).
-   *
-   * @param {Object} options, either:
-   *                   - {String} keyId
-   *                   - {String|Buffer} key
-   *                   - {String} algorithm (optional, required for HMAC)
-   *                 or:
-   *                   - {Func} sign (data, cb)
-   * @return {RequestSigner}
-   */
-  createSigner: function createSigner(options) {
-    return (new RequestSigner(options));
-  },
-
-  /**
-   * Adds an 'Authorization' header to an http.ClientRequest object.
-   *
-   * Note that this API will add a Date header if it's not already set. Any
-   * other headers in the options.headers array MUST be present, or this
-   * will throw.
-   *
-   * You shouldn't need to check the return type; it's just there if you want
-   * to be pedantic.
-   *
-   * The optional flag indicates whether parsing should use strict enforcement
-   * of the version draft-cavage-http-signatures-04 of the spec or beyond.
-   * The default is to be loose and support
-   * older versions for compatibility.
-   *
-   * @param {Object} request an instance of http.ClientRequest.
-   * @param {Object} options signing parameters object:
-   *                   - {String} keyId required.
-   *                   - {String} key required (either a PEM or HMAC key).
-   *                   - {Array} headers optional; defaults to ['date'].
-   *                   - {String} algorithm optional (unless key is HMAC);
-   *                              default is the same as the sshpk default
-   *                              signing algorithm for the type of key given
-   *                   - {String} httpVersion optional; defaults to '1.1'.
-   *                   - {Boolean} strict optional; defaults to 'false'.
-   * @return {Boolean} true if Authorization (and optionally Date) were added.
-   * @throws {TypeError} on bad parameter types (input).
-   * @throws {InvalidAlgorithmError} if algorithm was bad or incompatible with
-   *                                 the given key.
-   * @throws {sshpk.KeyParseError} if key was bad.
-   * @throws {MissingHeaderError} if a header to be signed was specified but
-   *                              was not present.
-   */
-  signRequest: function signRequest(request, options) {
-    assert.object(request, 'request');
-    assert.object(options, 'options');
-    assert.optionalString(options.algorithm, 'options.algorithm');
-    assert.string(options.keyId, 'options.keyId');
-    assert.optionalArrayOfString(options.headers, 'options.headers');
-    assert.optionalString(options.httpVersion, 'options.httpVersion');
-
-    if (!request.getHeader('Date'))
-      request.setHeader('Date', jsprim.rfc1123(new Date()));
-    if (!options.headers)
-      options.headers = ['date'];
-    if (!options.httpVersion)
-      options.httpVersion = '1.1';
-
-    var alg = [];
-    if (options.algorithm) {
-      options.algorithm = options.algorithm.toLowerCase();
-      alg = validateAlgorithm(options.algorithm);
-    }
-
-    var i;
-    var stringToSign = '';
-    for (i = 0; i < options.headers.length; i++) {
-      if (typeof (options.headers[i]) !== 'string')
-        throw new TypeError('options.headers must be an array of Strings');
-
-      var h = options.headers[i].toLowerCase();
-
-      if (h === 'request-line') {
-        if (!options.strict) {
-          /**
-           * We allow headers from the older spec drafts if strict parsing isn't
-           * specified in options.
-           */
-          stringToSign +=
-            request.method + ' ' + request.path + ' HTTP/' +
-            options.httpVersion;
-        } else {
-          /* Strict parsing doesn't allow older draft headers. */
-          throw (new StrictParsingError('request-line is not a valid header ' +
-            'with strict parsing enabled.'));
-        }
-      } else if (h === '(request-target)') {
-        stringToSign +=
-          '(request-target): ' + request.method.toLowerCase() + ' ' +
-          request.path;
-      } else {
-        var value = request.getHeader(h);
-        if (value === undefined || value === '') {
-          throw new MissingHeaderError(h + ' was not in the request');
-        }
-        stringToSign += h + ': ' + value;
-      }
-
-      if ((i + 1) < options.headers.length)
-        stringToSign += '\n';
-    }
-
-    /* This is just for unit tests. */
-    if (request.hasOwnProperty('_stringToSign')) {
-      request._stringToSign = stringToSign;
-    }
-
-    var signature;
-    if (alg[0] === 'hmac') {
-      if (typeof (options.key) !== 'string' && !Buffer.isBuffer(options.key))
-        throw (new TypeError('options.key must be a string or Buffer'));
-
-      var hmac = crypto.createHmac(alg[1].toUpperCase(), options.key);
-      hmac.update(stringToSign);
-      signature = hmac.digest('base64');
-
-    } else {
-      var key = options.key;
-      if (typeof (key) === 'string' || Buffer.isBuffer(key))
-        key = sshpk.parsePrivateKey(options.key);
-
-      assert.ok(sshpk.PrivateKey.isPrivateKey(key, [1, 2]),
-        'options.key must be a sshpk.PrivateKey');
-
-      if (!PK_ALGOS[key.type]) {
-        throw (new InvalidAlgorithmError(key.type.toUpperCase() + ' type ' +
-          'keys are not supported'));
-      }
-
-      if (alg[0] !== undefined && key.type !== alg[0]) {
-        throw (new InvalidAlgorithmError('options.key must be a ' +
-          alg[0].toUpperCase() + ' key, was given a ' +
-          key.type.toUpperCase() + ' key instead'));
-      }
-
-      var signer = key.createSign(alg[1]);
-      signer.update(stringToSign);
-      var sigObj = signer.sign();
-      if (!HASH_ALGOS[sigObj.hashAlgorithm]) {
-        throw (new InvalidAlgorithmError(sigObj.hashAlgorithm.toUpperCase() +
-          ' is not a supported hash algorithm'));
-      }
-      options.algorithm = key.type + '-' + sigObj.hashAlgorithm;
-      signature = sigObj.toString();
-      assert.notStrictEqual(signature, '', 'empty signature produced');
-    }
-
-    var authzHeaderName = options.authorizationHeaderName || 'Authorization';
-
-    request.setHeader(authzHeaderName, sprintf(AUTHZ_FMT,
-                                               options.keyId,
-                                               options.algorithm,
-                                               options.headers.join(' '),
-                                               signature));
-
-    return true;
-  }
-
-};
-
-
-/***/ }),
-/* 683 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2015 Joyent, Inc.
-
-var assert = __webpack_require__(16);
-var crypto = __webpack_require__(11);
-var sshpk = __webpack_require__(328);
-var utils = __webpack_require__(174);
-
-var HASH_ALGOS = utils.HASH_ALGOS;
-var PK_ALGOS = utils.PK_ALGOS;
-var InvalidAlgorithmError = utils.InvalidAlgorithmError;
-var HttpSignatureError = utils.HttpSignatureError;
-var validateAlgorithm = utils.validateAlgorithm;
-
-///--- Exported API
-
-module.exports = {
-  /**
-   * Verify RSA/DSA signature against public key.  You are expected to pass in
-   * an object that was returned from `parse()`.
-   *
-   * @param {Object} parsedSignature the object you got from `parse`.
-   * @param {String} pubkey RSA/DSA private key PEM.
-   * @return {Boolean} true if valid, false otherwise.
-   * @throws {TypeError} if you pass in bad arguments.
-   * @throws {InvalidAlgorithmError}
-   */
-  verifySignature: function verifySignature(parsedSignature, pubkey) {
-    assert.object(parsedSignature, 'parsedSignature');
-    if (typeof (pubkey) === 'string' || Buffer.isBuffer(pubkey))
-      pubkey = sshpk.parseKey(pubkey);
-    assert.ok(sshpk.Key.isKey(pubkey, [1, 1]), 'pubkey must be a sshpk.Key');
-
-    var alg = validateAlgorithm(parsedSignature.algorithm);
-    if (alg[0] === 'hmac' || alg[0] !== pubkey.type)
-      return (false);
-
-    var v = pubkey.createVerify(alg[1]);
-    v.update(parsedSignature.signingString);
-    return (v.verify(parsedSignature.params.signature, 'base64'));
-  },
-
-  /**
-   * Verify HMAC against shared secret.  You are expected to pass in an object
-   * that was returned from `parse()`.
-   *
-   * @param {Object} parsedSignature the object you got from `parse`.
-   * @param {String} secret HMAC shared secret.
-   * @return {Boolean} true if valid, false otherwise.
-   * @throws {TypeError} if you pass in bad arguments.
-   * @throws {InvalidAlgorithmError}
-   */
-  verifyHMAC: function verifyHMAC(parsedSignature, secret) {
-    assert.object(parsedSignature, 'parsedHMAC');
-    assert.string(secret, 'secret');
-
-    var alg = validateAlgorithm(parsedSignature.algorithm);
-    if (alg[0] !== 'hmac')
-      return (false);
-
-    var hashAlg = alg[1].toUpperCase();
-
-    var hmac = crypto.createHmac(hashAlg, secret);
-    hmac.update(parsedSignature.signingString);
-
-    /*
-     * Now double-hash to avoid leaking timing information - there's
-     * no easy constant-time compare in JS, so we use this approach
-     * instead. See for more info:
-     * https://www.isecpartners.com/blog/2011/february/double-hmac-
-     * verification.aspx
-     */
-    var h1 = crypto.createHmac(hashAlg, secret);
-    h1.update(hmac.digest());
-    h1 = h1.digest();
-    var h2 = crypto.createHmac(hashAlg, secret);
-    h2.update(new Buffer(parsedSignature.params.signature, 'base64'));
-    h2 = h2.digest();
-
-    /* Node 0.8 returns strings from .digest(). */
-    if (typeof (h1) === 'string')
-      return (h1 === h2);
-    /* And node 0.10 lacks the .equals() method on Buffers. */
-    if (Buffer.isBuffer(h1) && !h1.equals)
-      return (h1.toString('binary') === h2.toString('binary'));
-
-    return (h1.equals(h2));
-  }
-};
-
-
-/***/ }),
-/* 684 */
-/***/ (function(module, exports) {
-
-exports.parse = exports.decode = decode
-
-exports.stringify = exports.encode = encode
-
-exports.safe = safe
-exports.unsafe = unsafe
-
-var eol = typeof process !== 'undefined' &&
-  process.platform === 'win32' ? '\r\n' : '\n'
-
-function encode (obj, opt) {
-  var children = []
-  var out = ''
-
-  if (typeof opt === 'string') {
-    opt = {
-      section: opt,
-      whitespace: false
-    }
-  } else {
-    opt = opt || {}
-    opt.whitespace = opt.whitespace === true
-  }
-
-  var separator = opt.whitespace ? ' = ' : '='
-
-  Object.keys(obj).forEach(function (k, _, __) {
-    var val = obj[k]
-    if (val && Array.isArray(val)) {
-      val.forEach(function (item) {
-        out += safe(k + '[]') + separator + safe(item) + '\n'
-      })
-    } else if (val && typeof val === 'object') {
-      children.push(k)
-    } else {
-      out += safe(k) + separator + safe(val) + eol
-    }
-  })
-
-  if (opt.section && out.length) {
-    out = '[' + safe(opt.section) + ']' + eol + out
-  }
-
-  children.forEach(function (k, _, __) {
-    var nk = dotSplit(k).join('\\.')
-    var section = (opt.section ? opt.section + '.' : '') + nk
-    var child = encode(obj[k], {
-      section: section,
-      whitespace: opt.whitespace
-    })
-    if (out.length && child.length) {
-      out += eol
-    }
-    out += child
-  })
-
-  return out
-}
-
-function dotSplit (str) {
-  return str.replace(/\1/g, '\u0002LITERAL\\1LITERAL\u0002')
-    .replace(/\\\./g, '\u0001')
-    .split(/\./).map(function (part) {
-      return part.replace(/\1/g, '\\.')
-      .replace(/\2LITERAL\\1LITERAL\2/g, '\u0001')
-    })
-}
-
-function decode (str) {
-  var out = {}
-  var p = out
-  var section = null
-  //          section     |key      = value
-  var re = /^\[([^\]]*)\]$|^([^=]+)(=(.*))?$/i
-  var lines = str.split(/[\r\n]+/g)
-
-  lines.forEach(function (line, _, __) {
-    if (!line || line.match(/^\s*[;#]/)) return
-    var match = line.match(re)
-    if (!match) return
-    if (match[1] !== undefined) {
-      section = unsafe(match[1])
-      p = out[section] = out[section] || {}
-      return
-    }
-    var key = unsafe(match[2])
-    var value = match[3] ? unsafe(match[4]) : true
-    switch (value) {
-      case 'true':
-      case 'false':
-      case 'null': value = JSON.parse(value)
-    }
-
-    // Convert keys with '[]' suffix to an array
-    if (key.length > 2 && key.slice(-2) === '[]') {
-      key = key.substring(0, key.length - 2)
-      if (!p[key]) {
-        p[key] = []
-      } else if (!Array.isArray(p[key])) {
-        p[key] = [p[key]]
-      }
-    }
-
-    // safeguard against resetting a previously defined
-    // array by accidentally forgetting the brackets
-    if (Array.isArray(p[key])) {
-      p[key].push(value)
-    } else {
-      p[key] = value
-    }
-  })
-
-  // {a:{y:1},"a.b":{x:2}} --> {a:{y:1,b:{x:2}}}
-  // use a filter to return the keys that have to be deleted.
-  Object.keys(out).filter(function (k, _, __) {
-    if (!out[k] ||
-      typeof out[k] !== 'object' ||
-      Array.isArray(out[k])) {
-      return false
-    }
-    // see if the parent section is also an object.
-    // if so, add it to that, and mark this one for deletion
-    var parts = dotSplit(k)
-    var p = out
-    var l = parts.pop()
-    var nl = l.replace(/\\\./g, '.')
-    parts.forEach(function (part, _, __) {
-      if (!p[part] || typeof p[part] !== 'object') p[part] = {}
-      p = p[part]
-    })
-    if (p === out && nl === l) {
-      return false
-    }
-    p[nl] = out[k]
-    return true
-  }).forEach(function (del, _, __) {
-    delete out[del]
-  })
-
-  return out
-}
-
-function isQuoted (val) {
-  return (val.charAt(0) === '"' && val.slice(-1) === '"') ||
-    (val.charAt(0) === "'" && val.slice(-1) === "'")
-}
-
-function safe (val) {
-  return (typeof val !== 'string' ||
-    val.match(/[=\r\n]/) ||
-    val.match(/^\[/) ||
-    (val.length > 1 &&
-     isQuoted(val)) ||
-    val !== val.trim())
-      ? JSON.stringify(val)
-      : val.replace(/;/g, '\\;').replace(/#/g, '\\#')
-}
-
-function unsafe (val, doUnesc) {
-  val = (val || '').trim()
-  if (isQuoted(val)) {
-    // remove the single quotes before calling JSON.parse
-    if (val.charAt(0) === "'") {
-      val = val.substr(1, val.length - 2)
-    }
-    try { val = JSON.parse(val) } catch (_) {}
-  } else {
-    // walk the val to find the first not-escaped ; character
-    var esc = false
-    var unesc = ''
-    for (var i = 0, l = val.length; i < l; i++) {
-      var c = val.charAt(i)
-      if (esc) {
-        if ('\\;#'.indexOf(c) !== -1) {
-          unesc += c
-        } else {
-          unesc += '\\' + c
-        }
-        esc = false
-      } else if (';#'.indexOf(c) !== -1) {
-        break
-      } else if (c === '\\') {
-        esc = true
-      } else {
-        unesc += c
-      }
-    }
-    if (esc) {
-      unesc += '\\'
-    }
-    return unesc.trim()
-  }
-  return val
-}
-
-
-/***/ }),
-/* 685 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var _ = __webpack_require__(38);
-
-/**
- * Choice object
- * Normalize input as choice object
- * @constructor
- * @param {String|Object} val  Choice value. If an object is passed, it should contains
- *                             at least one of `value` or `name` property
- */
-
-module.exports = class Choice {
-  constructor(val, answers) {
-    // Don't process Choice and Separator object
-    if (val instanceof Choice || val.type === 'separator') {
-      return val;
-    }
-
-    if (_.isString(val)) {
-      this.name = val;
-      this.value = val;
-      this.short = val;
-    } else {
-      _.extend(this, val, {
-        name: val.name || val.value,
-        value: 'value' in val ? val.value : val.name,
-        short: val.short || val.name || val.value
-      });
-    }
-
-    if (_.isFunction(val.disabled)) {
-      this.disabled = val.disabled(answers);
-    } else {
-      this.disabled = val.disabled;
-    }
-  }
-};
-
-
-/***/ }),
-/* 686 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var assert = __webpack_require__(28);
-var _ = __webpack_require__(38);
-var Separator = __webpack_require__(175);
-var Choice = __webpack_require__(685);
-
-/**
- * Choices collection
- * Collection of multiple `choice` object
- * @constructor
- * @param {Array} choices  All `choice` to keep in the collection
- */
-
-module.exports = class Choices {
-  constructor(choices, answers) {
-    this.choices = choices.map(val => {
-      if (val.type === 'separator') {
-        if (!(val instanceof Separator)) {
-          val = new Separator(val.line);
-        }
-        return val;
-      }
-      return new Choice(val, answers);
-    });
-
-    this.realChoices = this.choices
-      .filter(Separator.exclude)
-      .filter(item => !item.disabled);
-
-    Object.defineProperty(this, 'length', {
-      get() {
-        return this.choices.length;
-      },
-      set(val) {
-        this.choices.length = val;
-      }
-    });
-
-    Object.defineProperty(this, 'realLength', {
-      get() {
-        return this.realChoices.length;
-      },
-      set() {
-        throw new Error('Cannot set `realLength` of a Choices collection');
-      }
-    });
-  }
-
-  /**
-   * Get a valid choice from the collection
-   * @param  {Number} selector  The selected choice index
-   * @return {Choice|Undefined} Return the matched choice or undefined
-   */
-
-  getChoice(selector) {
-    assert(_.isNumber(selector));
-    return this.realChoices[selector];
-  }
-
-  /**
-   * Get a raw element from the collection
-   * @param  {Number} selector  The selected index value
-   * @return {Choice|Undefined} Return the matched choice or undefined
-   */
-
-  get(selector) {
-    assert(_.isNumber(selector));
-    return this.choices[selector];
-  }
-
-  /**
-   * Match the valid choices against a where clause
-   * @param  {Object} whereClause Lodash `where` clause
-   * @return {Array}              Matching choices or empty array
-   */
-
-  where(whereClause) {
-    return _.filter(this.realChoices, whereClause);
-  }
-
-  /**
-   * Pluck a particular key from the choices
-   * @param  {String} propertyName Property name to select
-   * @return {Array}               Selected properties
-   */
-
-  pluck(propertyName) {
-    return _.map(this.realChoices, propertyName);
-  }
-
-  // Expose usual Array methods
-  indexOf() {
-    return this.choices.indexOf.apply(this.choices, arguments);
-  }
-
-  forEach() {
-    return this.choices.forEach.apply(this.choices, arguments);
-  }
-
-  filter() {
-    return this.choices.filter.apply(this.choices, arguments);
-  }
-
-  find(func) {
-    return _.find(this.choices, func);
-  }
-
-  push() {
-    var objs = _.map(arguments, val => new Choice(val));
-    this.choices.push.apply(this.choices, objs);
-    this.realChoices = this.choices.filter(Separator.exclude);
-    return this.choices;
-  }
-};
-
-
-/***/ }),
-/* 687 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `list` type prompt
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var cliCursor = __webpack_require__(381);
-var figures = __webpack_require__(270);
-var { map, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-var Paginator = __webpack_require__(176);
-
-class CheckboxPrompt extends Base {
-  constructor(questions, rl, answers) {
-    super(questions, rl, answers);
-
-    if (!this.opt.choices) {
-      this.throwParamError('choices');
-    }
-
-    if (_.isArray(this.opt.default)) {
-      this.opt.choices.forEach(function(choice) {
-        if (this.opt.default.indexOf(choice.value) >= 0) {
-          choice.checked = true;
-        }
-      }, this);
-    }
-
-    this.pointer = 0;
-    this.firstRender = true;
-
-    // Make sure no default is set (so it won't be printed)
-    this.opt.default = null;
-
-    this.paginator = new Paginator(this.screen);
-  }
-
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    var events = observe(this.rl);
-
-    var validation = this.handleSubmitEvents(
-      events.line.pipe(map(this.getCurrentValue.bind(this)))
-    );
-    validation.success.forEach(this.onEnd.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-
-    events.normalizedUpKey
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onUpKey.bind(this));
-    events.normalizedDownKey
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onDownKey.bind(this));
-    events.numberKey
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onNumberKey.bind(this));
-    events.spaceKey
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onSpaceKey.bind(this));
-    events.aKey.pipe(takeUntil(validation.success)).forEach(this.onAllKey.bind(this));
-    events.iKey.pipe(takeUntil(validation.success)).forEach(this.onInverseKey.bind(this));
-
-    // Init the prompt
-    cliCursor.hide();
-    this.render();
-    this.firstRender = false;
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {CheckboxPrompt} self
-   */
-
-  render(error) {
-    // Render question
-    var message = this.getQuestion();
-    var bottomContent = '';
-
-    if (this.firstRender) {
-      message +=
-        '(Press ' +
-        chalk.cyan.bold('<space>') +
-        ' to select, ' +
-        chalk.cyan.bold('<a>') +
-        ' to toggle all, ' +
-        chalk.cyan.bold('<i>') +
-        ' to invert selection)';
-    }
-
-    // Render choices or answer depending on the state
-    if (this.status === 'answered') {
-      message += chalk.cyan(this.selection.join(', '));
-    } else {
-      var choicesStr = renderChoices(this.opt.choices, this.pointer);
-      var indexPosition = this.opt.choices.indexOf(
-        this.opt.choices.getChoice(this.pointer)
-      );
-      message +=
-        '\n' + this.paginator.paginate(choicesStr, indexPosition, this.opt.pageSize);
-    }
-
-    if (error) {
-      bottomContent = chalk.red('>> ') + error;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  onEnd(state) {
-    this.status = 'answered';
-
-    // Rerender prompt (and clean subline error)
-    this.render();
-
-    this.screen.done();
-    cliCursor.show();
-    this.done(state.value);
-  }
-
-  onError(state) {
-    this.render(state.isValid);
-  }
-
-  getCurrentValue() {
-    var choices = this.opt.choices.filter(function(choice) {
-      return Boolean(choice.checked) && !choice.disabled;
-    });
-
-    this.selection = _.map(choices, 'short');
-    return _.map(choices, 'value');
-  }
-
-  onUpKey() {
-    var len = this.opt.choices.realLength;
-    this.pointer = this.pointer > 0 ? this.pointer - 1 : len - 1;
-    this.render();
-  }
-
-  onDownKey() {
-    var len = this.opt.choices.realLength;
-    this.pointer = this.pointer < len - 1 ? this.pointer + 1 : 0;
-    this.render();
-  }
-
-  onNumberKey(input) {
-    if (input <= this.opt.choices.realLength) {
-      this.pointer = input - 1;
-      this.toggleChoice(this.pointer);
-    }
-    this.render();
-  }
-
-  onSpaceKey() {
-    this.toggleChoice(this.pointer);
-    this.render();
-  }
-
-  onAllKey() {
-    var shouldBeChecked = Boolean(
-      this.opt.choices.find(function(choice) {
-        return choice.type !== 'separator' && !choice.checked;
-      })
-    );
-
-    this.opt.choices.forEach(function(choice) {
-      if (choice.type !== 'separator') {
-        choice.checked = shouldBeChecked;
-      }
-    });
-
-    this.render();
-  }
-
-  onInverseKey() {
-    this.opt.choices.forEach(function(choice) {
-      if (choice.type !== 'separator') {
-        choice.checked = !choice.checked;
-      }
-    });
-
-    this.render();
-  }
-
-  toggleChoice(index) {
-    var item = this.opt.choices.getChoice(index);
-    if (item !== undefined) {
-      this.opt.choices.getChoice(index).checked = !item.checked;
-    }
-  }
-}
-
-/**
- * Function for rendering checkbox choices
- * @param  {Number} pointer Position of the pointer
- * @return {String}         Rendered content
- */
-
-function renderChoices(choices, pointer) {
-  var output = '';
-  var separatorOffset = 0;
-
-  choices.forEach(function(choice, i) {
-    if (choice.type === 'separator') {
-      separatorOffset++;
-      output += ' ' + choice + '\n';
-      return;
-    }
-
-    if (choice.disabled) {
-      separatorOffset++;
-      output += ' - ' + choice.name;
-      output += ' (' + (_.isString(choice.disabled) ? choice.disabled : 'Disabled') + ')';
-    } else {
-      var line = getCheckbox(choice.checked) + ' ' + choice.name;
-      if (i - separatorOffset === pointer) {
-        output += chalk.cyan(figures.pointer + line);
-      } else {
-        output += ' ' + line;
-      }
-    }
-
-    output += '\n';
-  });
-
-  return output.replace(/\n$/, '');
-}
-
-/**
- * Get the checkbox
- * @param  {Boolean} checked - add a X or not to the checkbox
- * @return {String} Composited checkbox string
- */
-
-function getCheckbox(checked) {
-  return checked ? chalk.green(figures.radioOn) : figures.radioOff;
-}
-
-module.exports = CheckboxPrompt;
-
-
-/***/ }),
-/* 688 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `confirm` type prompt
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var { take, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-
-class ConfirmPrompt extends Base {
-  constructor(questions, rl, answers) {
-    super(questions, rl, answers);
-
-    var rawDefault = true;
-
-    _.extend(this.opt, {
-      filter: function(input) {
-        var value = rawDefault;
-        if (input != null && input !== '') {
-          value = /^y(es)?/i.test(input);
-        }
-        return value;
-      }
-    });
-
-    if (_.isBoolean(this.opt.default)) {
-      rawDefault = this.opt.default;
-    }
-
-    this.opt.default = rawDefault ? 'Y/n' : 'y/N';
-
-    return this;
-  }
-
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb   Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    // Once user confirm (enter key)
-    var events = observe(this.rl);
-    events.keypress.pipe(takeUntil(events.line)).forEach(this.onKeypress.bind(this));
-
-    events.line.pipe(take(1)).forEach(this.onEnd.bind(this));
-
-    // Init
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {ConfirmPrompt} self
-   */
-
-  render(answer) {
-    var message = this.getQuestion();
-
-    if (typeof answer === 'boolean') {
-      message += chalk.cyan(answer ? 'Yes' : 'No');
-    } else {
-      message += this.rl.line;
-    }
-
-    this.screen.render(message);
-
-    return this;
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  onEnd(input) {
-    this.status = 'answered';
-
-    var output = this.opt.filter(input);
-    this.render(output);
-
-    this.screen.done();
-    this.done(output);
-  }
-
-  /**
-   * When user press a key
-   */
-
-  onKeypress() {
-    this.render();
-  }
-}
-
-module.exports = ConfirmPrompt;
-
-
-/***/ }),
-/* 689 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `editor` type prompt
- */
-
-var chalk = __webpack_require__(30);
-var editAsync = __webpack_require__(709).editAsync;
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-var { Subject } = __webpack_require__(182);
-
-class EditorPrompt extends Base {
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    this.editorResult = new Subject();
-
-    // Open Editor on "line" (Enter Key)
-    var events = observe(this.rl);
-    this.lineSubscription = events.line.subscribe(this.startExternalEditor.bind(this));
-
-    // Trigger Validation when editor closes
-    var validation = this.handleSubmitEvents(this.editorResult);
-    validation.success.forEach(this.onEnd.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-
-    // Prevents default from being printed on screen (can look weird with multiple lines)
-    this.currentText = this.opt.default;
-    this.opt.default = null;
-
-    // Init
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {EditorPrompt} self
-   */
-
-  render(error) {
-    var bottomContent = '';
-    var message = this.getQuestion();
-
-    if (this.status === 'answered') {
-      message += chalk.dim('Received');
-    } else {
-      message += chalk.dim('Press <enter> to launch your preferred editor.');
-    }
-
-    if (error) {
-      bottomContent = chalk.red('>> ') + error;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  /**
-   * Launch $EDITOR on user press enter
-   */
-
-  startExternalEditor() {
-    // Pause Readline to prevent stdin and stdout from being modified while the editor is showing
-    this.rl.pause();
-    editAsync(this.currentText, this.endExternalEditor.bind(this));
-  }
-
-  endExternalEditor(error, result) {
-    this.rl.resume();
-    if (error) {
-      this.editorResult.error(error);
-    } else {
-      this.editorResult.next(result);
-    }
-  }
-
-  onEnd(state) {
-    this.editorResult.unsubscribe();
-    this.lineSubscription.unsubscribe();
-    this.answer = state.value;
-    this.status = 'answered';
-    // Re-render prompt
-    this.render();
-    this.screen.done();
-    this.done(this.answer);
-  }
-
-  onError(state) {
-    this.render(state.isValid);
-  }
-}
-
-module.exports = EditorPrompt;
-
-
-/***/ }),
-/* 690 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `rawlist` type prompt
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var { map, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var Separator = __webpack_require__(175);
-var observe = __webpack_require__(80);
-var Paginator = __webpack_require__(176);
-
-class ExpandPrompt extends Base {
-  constructor(questions, rl, answers) {
-    super(questions, rl, answers);
-
-    if (!this.opt.choices) {
-      this.throwParamError('choices');
-    }
-
-    this.validateChoices(this.opt.choices);
-
-    // Add the default `help` (/expand) option
-    this.opt.choices.push({
-      key: 'h',
-      name: 'Help, list all options',
-      value: 'help'
-    });
-
-    this.opt.validate = choice => {
-      if (choice == null) {
-        return 'Please enter a valid command';
-      }
-
-      return choice !== 'help';
-    };
-
-    // Setup the default string (capitalize the default key)
-    this.opt.default = this.generateChoicesString(this.opt.choices, this.opt.default);
-
-    this.paginator = new Paginator(this.screen);
-  }
-
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    // Save user answer and update prompt to show selected option.
-    var events = observe(this.rl);
-    var validation = this.handleSubmitEvents(
-      events.line.pipe(map(this.getCurrentValue.bind(this)))
-    );
-    validation.success.forEach(this.onSubmit.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-    this.keypressObs = events.keypress
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onKeypress.bind(this));
-
-    // Init the prompt
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {ExpandPrompt} self
-   */
-
-  render(error, hint) {
-    var message = this.getQuestion();
-    var bottomContent = '';
-
-    if (this.status === 'answered') {
-      message += chalk.cyan(this.answer);
-    } else if (this.status === 'expanded') {
-      var choicesStr = renderChoices(this.opt.choices, this.selectedKey);
-      message += this.paginator.paginate(choicesStr, this.selectedKey, this.opt.pageSize);
-      message += '\n  Answer: ';
-    }
-
-    message += this.rl.line;
-
-    if (error) {
-      bottomContent = chalk.red('>> ') + error;
-    }
-
-    if (hint) {
-      bottomContent = chalk.cyan('>> ') + hint;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  getCurrentValue(input) {
-    if (!input) {
-      input = this.rawDefault;
-    }
-    var selected = this.opt.choices.where({ key: input.toLowerCase().trim() })[0];
-    if (!selected) {
-      return null;
-    }
-
-    return selected.value;
-  }
-
-  /**
-   * Generate the prompt choices string
-   * @return {String}  Choices string
-   */
-
-  getChoices() {
-    var output = '';
-
-    this.opt.choices.forEach(choice => {
-      output += '\n  ';
-
-      if (choice.type === 'separator') {
-        output += ' ' + choice;
-        return;
-      }
-
-      var choiceStr = choice.key + ') ' + choice.name;
-      if (this.selectedKey === choice.key) {
-        choiceStr = chalk.cyan(choiceStr);
-      }
-      output += choiceStr;
-    });
-
-    return output;
-  }
-
-  onError(state) {
-    if (state.value === 'help') {
-      this.selectedKey = '';
-      this.status = 'expanded';
-      this.render();
-      return;
-    }
-    this.render(state.isValid);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  onSubmit(state) {
-    this.status = 'answered';
-    var choice = this.opt.choices.where({ value: state.value })[0];
-    this.answer = choice.short || choice.name;
-
-    // Re-render prompt
-    this.render();
-    this.screen.done();
-    this.done(state.value);
-  }
-
-  /**
-   * When user press a key
-   */
-
-  onKeypress() {
-    this.selectedKey = this.rl.line.toLowerCase();
-    var selected = this.opt.choices.where({ key: this.selectedKey })[0];
-    if (this.status === 'expanded') {
-      this.render();
-    } else {
-      this.render(null, selected ? selected.name : null);
-    }
-  }
-
-  /**
-   * Validate the choices
-   * @param {Array} choices
-   */
-
-  validateChoices(choices) {
-    var formatError;
-    var errors = [];
-    var keymap = {};
-    choices.filter(Separator.exclude).forEach(choice => {
-      if (!choice.key || choice.key.length !== 1) {
-        formatError = true;
-      }
-      if (keymap[choice.key]) {
-        errors.push(choice.key);
-      }
-      keymap[choice.key] = true;
-      choice.key = String(choice.key).toLowerCase();
-    });
-
-    if (formatError) {
-      throw new Error(
-        'Format error: `key` param must be a single letter and is required.'
-      );
-    }
-    if (keymap.h) {
-      throw new Error(
-        'Reserved key error: `key` param cannot be `h` - this value is reserved.'
-      );
-    }
-    if (errors.length) {
-      throw new Error(
-        'Duplicate key error: `key` param must be unique. Duplicates: ' +
-          _.uniq(errors).join(', ')
-      );
-    }
-  }
-
-  /**
-   * Generate a string out of the choices keys
-   * @param  {Array}  choices
-   * @param  {Number|String} default - the choice index or name to capitalize
-   * @return {String} The rendered choices key string
-   */
-  generateChoicesString(choices, defaultChoice) {
-    var defIndex = choices.realLength - 1;
-    if (_.isNumber(defaultChoice) && this.opt.choices.getChoice(defaultChoice)) {
-      defIndex = defaultChoice;
-    } else if (_.isString(defaultChoice)) {
-      let index = _.findIndex(
-        choices.realChoices,
-        ({ value }) => value === defaultChoice
-      );
-      defIndex = index === -1 ? defIndex : index;
-    }
-    var defStr = this.opt.choices.pluck('key');
-    this.rawDefault = defStr[defIndex];
-    defStr[defIndex] = String(defStr[defIndex]).toUpperCase();
-    return defStr.join('');
-  }
-}
-
-/**
- * Function for rendering checkbox choices
- * @param  {String} pointer Selected key
- * @return {String}         Rendered content
- */
-
-function renderChoices(choices, pointer) {
-  var output = '';
-
-  choices.forEach(choice => {
-    output += '\n  ';
-
-    if (choice.type === 'separator') {
-      output += ' ' + choice;
-      return;
-    }
-
-    var choiceStr = choice.key + ') ' + choice.name;
-    if (pointer === choice.key) {
-      choiceStr = chalk.cyan(choiceStr);
-    }
-    output += choiceStr;
-  });
-
-  return output;
-}
-
-module.exports = ExpandPrompt;
-
-
-/***/ }),
-/* 691 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `list` type prompt
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var figures = __webpack_require__(270);
-var cliCursor = __webpack_require__(381);
-var runAsync = __webpack_require__(181);
-var { flatMap, map, take, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-var Paginator = __webpack_require__(176);
-
-class ListPrompt extends Base {
-  constructor(questions, rl, answers) {
-    super(questions, rl, answers);
-
-    if (!this.opt.choices) {
-      this.throwParamError('choices');
-    }
-
-    this.firstRender = true;
-    this.selected = 0;
-
-    var def = this.opt.default;
-
-    // If def is a Number, then use as index. Otherwise, check for value.
-    if (_.isNumber(def) && def >= 0 && def < this.opt.choices.realLength) {
-      this.selected = def;
-    } else if (!_.isNumber(def) && def != null) {
-      let index = _.findIndex(this.opt.choices.realChoices, ({ value }) => value === def);
-      this.selected = Math.max(index, 0);
-    }
-
-    // Make sure no default is set (so it won't be printed)
-    this.opt.default = null;
-
-    this.paginator = new Paginator(this.screen);
-  }
-
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    var self = this;
-
-    var events = observe(this.rl);
-    events.normalizedUpKey.pipe(takeUntil(events.line)).forEach(this.onUpKey.bind(this));
-    events.normalizedDownKey
-      .pipe(takeUntil(events.line))
-      .forEach(this.onDownKey.bind(this));
-    events.numberKey.pipe(takeUntil(events.line)).forEach(this.onNumberKey.bind(this));
-    events.line
-      .pipe(
-        take(1),
-        map(this.getCurrentValue.bind(this)),
-        flatMap(value => runAsync(self.opt.filter)(value).catch(err => err))
-      )
-      .forEach(this.onSubmit.bind(this));
-
-    // Init the prompt
-    cliCursor.hide();
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {ListPrompt} self
-   */
-
-  render() {
-    // Render question
-    var message = this.getQuestion();
-
-    if (this.firstRender) {
-      message += chalk.dim('(Use arrow keys)');
-    }
-
-    // Render choices or answer depending on the state
-    if (this.status === 'answered') {
-      message += chalk.cyan(this.opt.choices.getChoice(this.selected).short);
-    } else {
-      var choicesStr = listRender(this.opt.choices, this.selected);
-      var indexPosition = this.opt.choices.indexOf(
-        this.opt.choices.getChoice(this.selected)
-      );
-      message +=
-        '\n' + this.paginator.paginate(choicesStr, indexPosition, this.opt.pageSize);
-    }
-
-    this.firstRender = false;
-
-    this.screen.render(message);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  onSubmit(value) {
-    this.status = 'answered';
-
-    // Rerender prompt
-    this.render();
-
-    this.screen.done();
-    cliCursor.show();
-    this.done(value);
-  }
-
-  getCurrentValue() {
-    return this.opt.choices.getChoice(this.selected).value;
-  }
-
-  /**
-   * When user press a key
-   */
-  onUpKey() {
-    var len = this.opt.choices.realLength;
-    this.selected = this.selected > 0 ? this.selected - 1 : len - 1;
-    this.render();
-  }
-
-  onDownKey() {
-    var len = this.opt.choices.realLength;
-    this.selected = this.selected < len - 1 ? this.selected + 1 : 0;
-    this.render();
-  }
-
-  onNumberKey(input) {
-    if (input <= this.opt.choices.realLength) {
-      this.selected = input - 1;
-    }
-    this.render();
-  }
-}
-
-/**
- * Function for rendering list choices
- * @param  {Number} pointer Position of the pointer
- * @return {String}         Rendered content
- */
-function listRender(choices, pointer) {
-  var output = '';
-  var separatorOffset = 0;
-
-  choices.forEach((choice, i) => {
-    if (choice.type === 'separator') {
-      separatorOffset++;
-      output += '  ' + choice + '\n';
-      return;
-    }
-
-    if (choice.disabled) {
-      separatorOffset++;
-      output += '  - ' + choice.name;
-      output += ' (' + (_.isString(choice.disabled) ? choice.disabled : 'Disabled') + ')';
-      output += '\n';
-      return;
-    }
-
-    var isSelected = i - separatorOffset === pointer;
-    var line = (isSelected ? figures.pointer + ' ' : '  ') + choice.name;
-    if (isSelected) {
-      line = chalk.cyan(line);
-    }
-    output += line + ' \n';
-  });
-
-  return output.replace(/\n$/, '');
-}
-
-module.exports = ListPrompt;
-
-
-/***/ }),
-/* 692 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `input` type prompt
- */
-
-var Input = __webpack_require__(392);
-
-/**
- * Extention of the Input prompt specifically for use with number inputs.
- */
-
-class NumberPrompt extends Input {
-  filterInput(input) {
-    if (input && typeof input === 'string') {
-      input = input.trim();
-      // Match a number in the input
-      let numberMatch = input.match(/(^-?\d+|^\d+\.\d*|^\d*\.\d+)(e\d+)?$/);
-      // If a number is found, return that input.
-      if (numberMatch) {
-        return Number(numberMatch[0]);
-      }
-    }
-    // If the input was invalid return the default value.
-    return this.opt.default == null ? NaN : this.opt.default;
-  }
-}
-
-module.exports = NumberPrompt;
-
-
-/***/ }),
-/* 693 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `password` type prompt
- */
-
-var chalk = __webpack_require__(30);
-var { map, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var observe = __webpack_require__(80);
-
-function mask(input, maskChar) {
-  input = String(input);
-  maskChar = typeof maskChar === 'string' ? maskChar : '*';
-  if (input.length === 0) {
-    return '';
-  }
-
-  return new Array(input.length + 1).join(maskChar);
-}
-
-class PasswordPrompt extends Base {
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    var events = observe(this.rl);
-
-    // Once user confirm (enter key)
-    var submit = events.line.pipe(map(this.filterInput.bind(this)));
-
-    var validation = this.handleSubmitEvents(submit);
-    validation.success.forEach(this.onEnd.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-
-    if (this.opt.mask) {
-      events.keypress
-        .pipe(takeUntil(validation.success))
-        .forEach(this.onKeypress.bind(this));
-    }
-
-    // Init
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {PasswordPrompt} self
-   */
-
-  render(error) {
-    var message = this.getQuestion();
-    var bottomContent = '';
-
-    if (this.status === 'answered') {
-      message += this.opt.mask
-        ? chalk.cyan(mask(this.answer, this.opt.mask))
-        : chalk.italic.dim('[hidden]');
-    } else if (this.opt.mask) {
-      message += mask(this.rl.line || '', this.opt.mask);
-    } else {
-      message += chalk.italic.dim('[input is hidden] ');
-    }
-
-    if (error) {
-      bottomContent = '\n' + chalk.red('>> ') + error;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  filterInput(input) {
-    if (!input) {
-      return this.opt.default == null ? '' : this.opt.default;
-    }
-    return input;
-  }
-
-  onEnd(state) {
-    this.status = 'answered';
-    this.answer = state.value;
-
-    // Re-render prompt
-    this.render();
-
-    this.screen.done();
-    this.done(state.value);
-  }
-
-  onError(state) {
-    this.render(state.isValid);
-  }
-
-  onKeypress() {
-    this.render();
-  }
-}
-
-module.exports = PasswordPrompt;
-
-
-/***/ }),
-/* 694 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * `rawlist` type prompt
- */
-
-var _ = __webpack_require__(38);
-var chalk = __webpack_require__(30);
-var { map, takeUntil } = __webpack_require__(63);
-var Base = __webpack_require__(79);
-var Separator = __webpack_require__(175);
-var observe = __webpack_require__(80);
-var Paginator = __webpack_require__(176);
-
-class RawListPrompt extends Base {
-  constructor(questions, rl, answers) {
-    super(questions, rl, answers);
-
-    if (!this.opt.choices) {
-      this.throwParamError('choices');
-    }
-
-    this.opt.validChoices = this.opt.choices.filter(Separator.exclude);
-
-    this.selected = 0;
-    this.rawDefault = 0;
-
-    _.extend(this.opt, {
-      validate: function(val) {
-        return val != null;
-      }
-    });
-
-    var def = this.opt.default;
-    if (_.isNumber(def) && def >= 0 && def < this.opt.choices.realLength) {
-      this.selected = def;
-      this.rawDefault = def;
-    } else if (!_.isNumber(def) && def != null) {
-      let index = _.findIndex(this.opt.choices.realChoices, ({ value }) => value === def);
-      let safeIndex = Math.max(index, 0);
-      this.selected = safeIndex;
-      this.rawDefault = safeIndex;
-    }
-
-    // Make sure no default is set (so it won't be printed)
-    this.opt.default = null;
-
-    this.paginator = new Paginator();
-  }
-
-  /**
-   * Start the Inquiry session
-   * @param  {Function} cb      Callback when prompt is done
-   * @return {this}
-   */
-
-  _run(cb) {
-    this.done = cb;
-
-    // Once user confirm (enter key)
-    var events = observe(this.rl);
-    var submit = events.line.pipe(map(this.getCurrentValue.bind(this)));
-
-    var validation = this.handleSubmitEvents(submit);
-    validation.success.forEach(this.onEnd.bind(this));
-    validation.error.forEach(this.onError.bind(this));
-
-    events.keypress
-      .pipe(takeUntil(validation.success))
-      .forEach(this.onKeypress.bind(this));
-
-    // Init the prompt
-    this.render();
-
-    return this;
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {RawListPrompt} self
-   */
-
-  render(error) {
-    // Render question
-    var message = this.getQuestion();
-    var bottomContent = '';
-
-    if (this.status === 'answered') {
-      message += chalk.cyan(this.answer);
-    } else {
-      var choicesStr = renderChoices(this.opt.choices, this.selected);
-      message += this.paginator.paginate(choicesStr, this.selected, this.opt.pageSize);
-      message += '\n  Answer: ';
-    }
-
-    message += this.rl.line;
-
-    if (error) {
-      bottomContent = '\n' + chalk.red('>> ') + error;
-    }
-
-    this.screen.render(message, bottomContent);
-  }
-
-  /**
-   * When user press `enter` key
-   */
-
-  getCurrentValue(index) {
-    if (index == null || index === '') {
-      index = this.rawDefault;
-    } else {
-      index -= 1;
-    }
-
-    var choice = this.opt.choices.getChoice(index);
-    return choice ? choice.value : null;
-  }
-
-  onEnd(state) {
-    this.status = 'answered';
-    this.answer = state.value;
-
-    // Re-render prompt
-    this.render();
-
-    this.screen.done();
-    this.done(state.value);
-  }
-
-  onError() {
-    this.render('Please enter a valid index');
-  }
-
-  /**
-   * When user press a key
-   */
-
-  onKeypress() {
-    var index = this.rl.line.length ? Number(this.rl.line) - 1 : 0;
-
-    if (this.opt.choices.getChoice(index)) {
-      this.selected = index;
-    } else {
-      this.selected = undefined;
-    }
-
-    this.render();
-  }
-}
-
-/**
- * Function for rendering list choices
- * @param  {Number} pointer Position of the pointer
- * @return {String}         Rendered content
- */
-
-function renderChoices(choices, pointer) {
-  var output = '';
-  var separatorOffset = 0;
-
-  choices.forEach(function(choice, i) {
-    output += '\n  ';
-
-    if (choice.type === 'separator') {
-      separatorOffset++;
-      output += ' ' + choice;
-      return;
-    }
-
-    var index = i - separatorOffset;
-    var display = index + 1 + ') ' + choice.name;
-    if (index === pointer) {
-      display = chalk.cyan(display);
-    }
-    output += display;
-  });
-
-  return output;
-}
-
-module.exports = RawListPrompt;
-
-
-/***/ }),
-/* 695 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/**
- * Sticky bottom bar user interface
- */
-
-var through = __webpack_require__(953);
-var Base = __webpack_require__(393);
-var rlUtils = __webpack_require__(394);
-var _ = __webpack_require__(38);
-
-class BottomBar extends Base {
-  constructor(opt) {
-    opt = opt || {};
-
-    super(opt);
-
-    this.log = through(this.writeLog.bind(this));
-    this.bottomBar = opt.bottomBar || '';
-    this.render();
-  }
-
-  /**
-   * Render the prompt to screen
-   * @return {BottomBar} self
-   */
-
-  render() {
-    this.write(this.bottomBar);
-    return this;
-  }
-
-  clean() {
-    rlUtils.clearLine(this.rl, this.bottomBar.split('\n').length);
-    return this;
-  }
-
-  /**
-   * Update the bottom bar content and rerender
-   * @param  {String} bottomBar Bottom bar content
-   * @return {BottomBar}           self
-   */
-
-  updateBottomBar(bottomBar) {
-    rlUtils.clearLine(this.rl, 1);
-    this.rl.output.unmute();
-    this.clean();
-    this.bottomBar = bottomBar;
-    this.render();
-    this.rl.output.mute();
-    return this;
-  }
-
-  /**
-   * Write out log data
-   * @param {String} data - The log data to be output
-   * @return {BottomBar} self
-   */
-
-  writeLog(data) {
-    this.rl.output.unmute();
-    this.clean();
-    this.rl.output.write(this.enforceLF(data.toString()));
-    this.render();
-    this.rl.output.mute();
-    return this;
-  }
-
-  /**
-   * Make sure line end on a line feed
-   * @param  {String} str Input string
-   * @return {String}     The input string with a final line feed
-   */
-
-  enforceLF(str) {
-    return str.match(/[\r\n]$/) ? str : str + '\n';
-  }
-
-  /**
-   * Helper for writing message in Prompt
-   * @param {BottomBar} prompt  - The Prompt object that extends tty
-   * @param {String} message - The message to be output
-   */
-  write(message) {
-    var msgLines = message.split(/\n/);
-    this.height = msgLines.length;
-
-    // Write message to screen and setPrompt to control backspace
-    this.rl.setPrompt(_.last(msgLines));
-
-    if (this.rl.output.rows === 0 && this.rl.output.columns === 0) {
-      /* When it's a tty through serial port there's no terminal info and the render will malfunction,
-         so we need enforce the cursor to locate to the leftmost position for rendering. */
-      rlUtils.left(this.rl, message.length + this.rl.line.length);
-    }
-    this.rl.output.write(message);
-  }
-}
-
-module.exports = BottomBar;
-
-
-/***/ }),
-/* 696 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var _ = __webpack_require__(38);
-var { defer, empty, from, of } = __webpack_require__(182);
-var { concatMap, filter, publish, reduce } = __webpack_require__(63);
-var runAsync = __webpack_require__(181);
-var utils = __webpack_require__(698);
-var Base = __webpack_require__(393);
-
-/**
- * Base interface class other can inherits from
- */
-
-class PromptUI extends Base {
-  constructor(prompts, opt) {
-    super(opt);
-    this.prompts = prompts;
-  }
-
-  run(questions) {
-    // Keep global reference to the answers
-    this.answers = {};
-
-    // Make sure questions is an array.
-    if (_.isPlainObject(questions)) {
-      questions = [questions];
-    }
-
-    // Create an observable, unless we received one as parameter.
-    // Note: As this is a public interface, we cannot do an instanceof check as we won't
-    // be using the exact same object in memory.
-    var obs = _.isArray(questions) ? from(questions) : questions;
-
-    this.process = obs.pipe(
-      concatMap(this.processQuestion.bind(this)),
-      publish() // Creates a hot Observable. It prevents duplicating prompts.
-    );
-
-    this.process.connect();
-
-    return this.process
-      .pipe(
-        reduce((answers, answer) => {
-          _.set(this.answers, answer.name, answer.answer);
-          return this.answers;
-        }, {})
-      )
-      .toPromise(Promise)
-      .then(this.onCompletion.bind(this));
-  }
-
-  /**
-   * Once all prompt are over
-   */
-
-  onCompletion() {
-    this.close();
-
-    return this.answers;
-  }
-
-  processQuestion(question) {
-    question = _.clone(question);
-    return defer(() => {
-      var obs = of(question);
-
-      return obs.pipe(
-        concatMap(this.setDefaultType.bind(this)),
-        concatMap(this.filterIfRunnable.bind(this)),
-        concatMap(() =>
-          utils.fetchAsyncQuestionProperty(question, 'message', this.answers)
-        ),
-        concatMap(() =>
-          utils.fetchAsyncQuestionProperty(question, 'default', this.answers)
-        ),
-        concatMap(() =>
-          utils.fetchAsyncQuestionProperty(question, 'choices', this.answers)
-        ),
-        concatMap(this.fetchAnswer.bind(this))
-      );
-    });
-  }
-
-  fetchAnswer(question) {
-    var Prompt = this.prompts[question.type];
-    this.activePrompt = new Prompt(question, this.rl, this.answers);
-    return defer(() =>
-      from(
-        this.activePrompt.run().then(answer => ({ name: question.name, answer: answer }))
-      )
-    );
-  }
-
-  setDefaultType(question) {
-    // Default type to input
-    if (!this.prompts[question.type]) {
-      question.type = 'input';
-    }
-    return defer(() => of(question));
-  }
-
-  filterIfRunnable(question) {
-    if (question.when === false) {
-      return empty();
-    }
-
-    if (!_.isFunction(question.when)) {
-      return of(question);
-    }
-
-    var answers = this.answers;
-    return defer(() =>
-      from(
-        runAsync(question.when)(answers).then(shouldRun => {
-          if (shouldRun) {
-            return question;
-          }
-        })
-      ).pipe(filter(val => val != null))
-    );
-  }
-}
-
-module.exports = PromptUI;
-
-
-/***/ }),
-/* 697 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var _ = __webpack_require__(38);
-var util = __webpack_require__(394);
-var cliWidth = __webpack_require__(606);
-var stripAnsi = __webpack_require__(329);
-var stringWidth = __webpack_require__(728);
-
-function height(content) {
-  return content.split('\n').length;
-}
-
-function lastLine(content) {
-  return _.last(content.split('\n'));
-}
-
-class ScreenManager {
-  constructor(rl) {
-    // These variables are keeping information to allow correct prompt re-rendering
-    this.height = 0;
-    this.extraLinesUnderPrompt = 0;
-
-    this.rl = rl;
-  }
-
-  render(content, bottomContent) {
-    this.rl.output.unmute();
-    this.clean(this.extraLinesUnderPrompt);
-
-    /**
-     * Write message to screen and setPrompt to control backspace
-     */
-
-    var promptLine = lastLine(content);
-    var rawPromptLine = stripAnsi(promptLine);
-
-    // Remove the rl.line from our prompt. We can't rely on the content of
-    // rl.line (mainly because of the password prompt), so just rely on it's
-    // length.
-    var prompt = rawPromptLine;
-    if (this.rl.line.length) {
-      prompt = prompt.slice(0, -this.rl.line.length);
-    }
-    this.rl.setPrompt(prompt);
-
-    // SetPrompt will change cursor position, now we can get correct value
-    var cursorPos = this.rl._getCursorPos();
-    var width = this.normalizedCliWidth();
-
-    content = this.forceLineReturn(content, width);
-    if (bottomContent) {
-      bottomContent = this.forceLineReturn(bottomContent, width);
-    }
-    // Manually insert an extra line if we're at the end of the line.
-    // This prevent the cursor from appearing at the beginning of the
-    // current line.
-    if (rawPromptLine.length % width === 0) {
-      content += '\n';
-    }
-    var fullContent = content + (bottomContent ? '\n' + bottomContent : '');
-    this.rl.output.write(fullContent);
-
-    /**
-     * Re-adjust the cursor at the correct position.
-     */
-
-    // We need to consider parts of the prompt under the cursor as part of the bottom
-    // content in order to correctly cleanup and re-render.
-    var promptLineUpDiff = Math.floor(rawPromptLine.length / width) - cursorPos.rows;
-    var bottomContentHeight =
-      promptLineUpDiff + (bottomContent ? height(bottomContent) : 0);
-    if (bottomContentHeight > 0) {
-      util.up(this.rl, bottomContentHeight);
-    }
-
-    // Reset cursor at the beginning of the line
-    util.left(this.rl, stringWidth(lastLine(fullContent)));
-
-    // Adjust cursor on the right
-    if (cursorPos.cols > 0) {
-      util.right(this.rl, cursorPos.cols);
-    }
-
-    /**
-     * Set up state for next re-rendering
-     */
-    this.extraLinesUnderPrompt = bottomContentHeight;
-    this.height = height(fullContent);
-
-    this.rl.output.mute();
-  }
-
-  clean(extraLines) {
-    if (extraLines > 0) {
-      util.down(this.rl, extraLines);
-    }
-    util.clearLine(this.rl, this.height);
-  }
-
-  done() {
-    this.rl.setPrompt('');
-    this.rl.output.unmute();
-    this.rl.output.write('\n');
-  }
-
-  releaseCursor() {
-    if (this.extraLinesUnderPrompt > 0) {
-      util.down(this.rl, this.extraLinesUnderPrompt);
-    }
-  }
-
-  normalizedCliWidth() {
-    var width = cliWidth({
-      defaultWidth: 80,
-      output: this.rl.output
-    });
-    return width;
-  }
-
-  breakLines(lines, width) {
-    // Break lines who're longer than the cli width so we can normalize the natural line
-    // returns behavior across terminals.
-    width = width || this.normalizedCliWidth();
-    var regex = new RegExp('(?:(?:\\033[[0-9;]*m)*.?){1,' + width + '}', 'g');
-    return lines.map(line => {
-      var chunk = line.match(regex);
-      // Last match is always empty
-      chunk.pop();
-      return chunk || '';
-    });
-  }
-
-  forceLineReturn(content, width) {
-    width = width || this.normalizedCliWidth();
-    return _.flatten(this.breakLines(content.split('\n'), width)).join('\n');
-  }
-}
-
-module.exports = ScreenManager;
-
-
-/***/ }),
-/* 698 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var _ = __webpack_require__(38);
-var { from, of } = __webpack_require__(182);
-var runAsync = __webpack_require__(181);
-
-/**
- * Resolve a question property value if it is passed as a function.
- * This method will overwrite the property on the question object with the received value.
- * @param  {Object} question - Question object
- * @param  {String} prop     - Property to fetch name
- * @param  {Object} answers  - Answers object
- * @return {Rx.Observable}   - Observable emitting once value is known
- */
-
-exports.fetchAsyncQuestionProperty = function(question, prop, answers) {
-  if (!_.isFunction(question[prop])) {
-    return of(question);
-  }
-
-  return from(
-    runAsync(question[prop])(answers).then(value => {
-      question[prop] = value;
-      return question;
-    })
-  );
-};
-
-
-/***/ }),
-/* 699 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var util = __webpack_require__(3),
-  Match = __webpack_require__ (142);
-
-
-/**
- * This is a superclass for the individual detectors for
- * each of the detectable members of the ISO 2022 family
- * of encodings.
- */
-
-function ISO_2022() {}
-
-ISO_2022.prototype.match = function(det) {
-
-  /**
-   * Matching function shared among the 2022 detectors JP, CN and KR
-   * Counts up the number of legal an unrecognized escape sequences in
-   * the sample of text, and computes a score based on the total number &
-   * the proportion that fit the encoding.
-   *
-   *
-   * @param text the byte buffer containing text to analyse
-   * @param textLen  the size of the text in the byte.
-   * @param escapeSequences the byte escape sequences to test for.
-   * @return match quality, in the range of 0-100.
-   */
-
-  var i, j;
-  var escN;
-  var hits   = 0;
-  var misses = 0;
-  var shifts = 0;
-  var quality;
-
-  // TODO: refactor me
-  var text = det.fInputBytes;
-  var textLen = det.fInputLen;
-
-  scanInput:
-    for (i = 0; i < textLen; i++) {
-      if (text[i] == 0x1b) {
-        checkEscapes:
-          for (escN = 0; escN < this.escapeSequences.length; escN++) {
-            var seq = this.escapeSequences[escN];
-
-            if ((textLen - i) < seq.length)
-              continue checkEscapes;
-
-            for (j = 1; j < seq.length; j++)
-              if (seq[j] != text[i + j])
-                continue checkEscapes;
-
-
-            hits++;
-            i += seq.length - 1;
-            continue scanInput;
-          }
-
-          misses++;
-      }
-
-      // Shift in/out
-      if (text[i] == 0x0e || text[i] == 0x0f)
-        shifts++;
-
-    }
-
-  if (hits == 0)
-    return null;
-
-  //
-  // Initial quality is based on relative proportion of recongized vs.
-  //   unrecognized escape sequences.
-  //   All good:  quality = 100;
-  //   half or less good: quality = 0;
-  //   linear inbetween.
-  quality = (100 * hits - 100 * misses) / (hits + misses);
-
-  // Back off quality if there were too few escape sequences seen.
-  //   Include shifts in this computation, so that KR does not get penalized
-  //   for having only a single Escape sequence, but many shifts.
-  if (hits + shifts < 5)
-    quality -= (5 - (hits + shifts)) * 10;
-
-  return quality <= 0 ? null : new Match(det, this, quality);
-};
-
-module.exports.ISO_2022_JP = function() {
-  this.name = function() {
-    return 'ISO-2022-JP';
-  };
-  this.escapeSequences = [
-    [ 0x1b, 0x24, 0x28, 0x43 ],   // KS X 1001:1992
-    [ 0x1b, 0x24, 0x28, 0x44 ],   // JIS X 212-1990
-    [ 0x1b, 0x24, 0x40 ],         // JIS C 6226-1978
-    [ 0x1b, 0x24, 0x41 ],         // GB 2312-80
-    [ 0x1b, 0x24, 0x42 ],         // JIS X 208-1983
-    [ 0x1b, 0x26, 0x40 ],         // JIS X 208 1990, 1997
-    [ 0x1b, 0x28, 0x42 ],         // ASCII
-    [ 0x1b, 0x28, 0x48 ],         // JIS-Roman
-    [ 0x1b, 0x28, 0x49 ],         // Half-width katakana
-    [ 0x1b, 0x28, 0x4a ],         // JIS-Roman
-    [ 0x1b, 0x2e, 0x41 ],         // ISO 8859-1
-    [ 0x1b, 0x2e, 0x46 ]          // ISO 8859-7
-  ];
-};
-util.inherits(module.exports.ISO_2022_JP, ISO_2022);
-
-
-
-module.exports.ISO_2022_KR = function() {
-  this.name = function() {
-    return 'ISO-2022-KR';
-  };
-  this.escapeSequences = [
-    [ 0x1b, 0x24, 0x29, 0x43 ]
-  ];
-};
-util.inherits(module.exports.ISO_2022_KR, ISO_2022);
-
-
-
-module.exports.ISO_2022_CN = function() {
-  this.name = function() {
-    return 'ISO-2022-CN';
-  };
-  this.escapeSequences = [
-    [ 0x1b, 0x24, 0x29, 0x41 ],   // GB 2312-80
-    [ 0x1b, 0x24, 0x29, 0x47 ],   // CNS 11643-1992 Plane 1
-    [ 0x1b, 0x24, 0x2A, 0x48 ],   // CNS 11643-1992 Plane 2
-    [ 0x1b, 0x24, 0x29, 0x45 ],   // ISO-IR-165
-    [ 0x1b, 0x24, 0x2B, 0x49 ],   // CNS 11643-1992 Plane 3
-    [ 0x1b, 0x24, 0x2B, 0x4A ],   // CNS 11643-1992 Plane 4
-    [ 0x1b, 0x24, 0x2B, 0x4B ],   // CNS 11643-1992 Plane 5
-    [ 0x1b, 0x24, 0x2B, 0x4C ],   // CNS 11643-1992 Plane 6
-    [ 0x1b, 0x24, 0x2B, 0x4D ],   // CNS 11643-1992 Plane 7
-    [ 0x1b, 0x4e ],               // SS2
-    [ 0x1b, 0x4f ]                // SS3
-  ];
-};
-util.inherits(module.exports.ISO_2022_CN, ISO_2022);
-
-
-/***/ }),
-/* 700 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var util = __webpack_require__(3),
-  Match = __webpack_require__ (142);
-
-/**
- * Binary search implementation (recursive)
- */
-function binarySearch(arr, searchValue) {
-  function find(arr, searchValue, left, right) {
-    if (right < left)
-      return -1;
-
-    /*
-    int mid = mid = (left + right) / 2;
-    There is a bug in the above line;
-    Joshua Bloch suggests the following replacement:
-    */
-    var mid = Math.floor((left + right) >>> 1);
-    if (searchValue > arr[mid])
-      return find(arr, searchValue, mid + 1, right);
-
-    if (searchValue < arr[mid])
-      return find(arr, searchValue, left, mid - 1);
-
-    return mid;
-  };
-
-  return find(arr, searchValue, 0, arr.length - 1);
-};
-
-// 'Character'  iterated character class.
-//    Recognizers for specific mbcs encodings make their 'characters' available
-//    by providing a nextChar() function that fills in an instance of iteratedChar
-//    with the next char from the input.
-//    The returned characters are not converted to Unicode, but remain as the raw
-//    bytes (concatenated into an int) from the codepage data.
-//
-//  For Asian charsets, use the raw input rather than the input that has been
-//   stripped of markup.  Detection only considers multi-byte chars, effectively
-//   stripping markup anyway, and double byte chars do occur in markup too.
-//
-function IteratedChar() {
-
-  this.charValue = 0; // 1-4 bytes from the raw input data
-  this.index     = 0;
-  this.nextIndex = 0;
-  this.error     = false;
-  this.done      = false;
-
-  this.reset = function() {
-    this.charValue = 0;
-    this.index     = -1;
-    this.nextIndex = 0;
-    this.error     = false;
-    this.done      = false;
-  };
-
-  this.nextByte = function(det) {
-    if (this.nextIndex >= det.fRawLength) {
-      this.done = true;
-      return -1;
-    }
-    var byteValue = det.fRawInput[this.nextIndex++] & 0x00ff;
-    return byteValue;
-  };
-};
-
-
-
-/**
- * Asian double or multi-byte - charsets.
- * Match is determined mostly by the input data adhering to the
- * encoding scheme for the charset, and, optionally,
- * frequency-of-occurence of characters.
- */
-
-function mbcs() {};
-
-/**
- * Test the match of this charset with the input text data
- *      which is obtained via the CharsetDetector object.
- *
- * @param det  The CharsetDetector, which contains the input text
- *             to be checked for being in this charset.
- * @return     Two values packed into one int  (Damn java, anyhow)
- *             bits 0-7:  the match confidence, ranging from 0-100
- *             bits 8-15: The match reason, an enum-like value.
- */
-mbcs.prototype.match = function(det) {
-
-  var singleByteCharCount = 0,  //TODO Do we really need this?
-    doubleByteCharCount = 0,
-    commonCharCount     = 0,
-    badCharCount        = 0,
-    totalCharCount      = 0,
-    confidence          = 0;
-
-  var iter = new IteratedChar();
-
-  detectBlock: {
-    for (iter.reset(); this.nextChar(iter, det);) {
-      totalCharCount++;
-      if (iter.error) {
-        badCharCount++;
-      } else {
-        var cv = iter.charValue & 0xFFFFFFFF;
-
-        if (cv <= 0xff) {
-          singleByteCharCount++;
-        } else {
-          doubleByteCharCount++;
-          if (this.commonChars != null) {
-            // NOTE: This assumes that there are no 4-byte common chars.
-            if (binarySearch(this.commonChars, cv) >= 0) {
-              commonCharCount++;
-            }
-          }
-        }
-      }
-      if (badCharCount >= 2 && badCharCount * 5 >= doubleByteCharCount) {
-        // console.log('its here!')
-        // Bail out early if the byte data is not matching the encoding scheme.
-        break detectBlock;
-      }
-    }
-
-    if (doubleByteCharCount <= 10 && badCharCount== 0) {
-      // Not many multi-byte chars.
-      if (doubleByteCharCount == 0 && totalCharCount < 10) {
-        // There weren't any multibyte sequences, and there was a low density of non-ASCII single bytes.
-        // We don't have enough data to have any confidence.
-        // Statistical analysis of single byte non-ASCII charcters would probably help here.
-        confidence = 0;
-      }
-      else {
-        //   ASCII or ISO file?  It's probably not our encoding,
-        //   but is not incompatible with our encoding, so don't give it a zero.
-        confidence = 10;
-      }
-      break detectBlock;
-    }
-
-    //
-    //  No match if there are too many characters that don't fit the encoding scheme.
-    //    (should we have zero tolerance for these?)
-    //
-    if (doubleByteCharCount < 20 * badCharCount) {
-      confidence = 0;
-      break detectBlock;
-    }
-
-    if (this.commonChars == null) {
-      // We have no statistics on frequently occuring characters.
-      //  Assess confidence purely on having a reasonable number of
-      //  multi-byte characters (the more the better
-      confidence = 30 + doubleByteCharCount - 20 * badCharCount;
-      if (confidence > 100) {
-        confidence = 100;
-      }
-    } else {
-      //
-      // Frequency of occurence statistics exist.
-      //
-      var maxVal = Math.log(parseFloat(doubleByteCharCount) / 4);
-      var scaleFactor = 90.0 / maxVal;
-      confidence = Math.floor(Math.log(commonCharCount + 1) * scaleFactor + 10);
-      confidence = Math.min(confidence, 100);
-    }
-  }   // end of detectBlock:
-
-  return confidence == 0 ? null : new Match(det, this, confidence);
-};
-
-/**
- * Get the next character (however many bytes it is) from the input data
- *    Subclasses for specific charset encodings must implement this function
- *    to get characters according to the rules of their encoding scheme.
- *
- *  This function is not a method of class iteratedChar only because
- *   that would require a lot of extra derived classes, which is awkward.
- * @param it  The iteratedChar 'struct' into which the returned char is placed.
- * @param det The charset detector, which is needed to get at the input byte data
- *            being iterated over.
- * @return    True if a character was returned, false at end of input.
- */
-
-mbcs.prototype.nextChar = function(iter, det) {};
-
-
-
-/**
- * Shift-JIS charset recognizer.
- */
-module.exports.sjis = function() {
-  this.name = function() {
-    return 'Shift-JIS';
-  };
-  this.language = function() {
-    return 'ja';
-  };
-
-  // TODO:  This set of data comes from the character frequency-
-  //        of-occurence analysis tool.  The data needs to be moved
-  //        into a resource and loaded from there.
-  this.commonChars = [
-    0x8140, 0x8141, 0x8142, 0x8145, 0x815b, 0x8169, 0x816a, 0x8175, 0x8176, 0x82a0,
-    0x82a2, 0x82a4, 0x82a9, 0x82aa, 0x82ab, 0x82ad, 0x82af, 0x82b1, 0x82b3, 0x82b5,
-    0x82b7, 0x82bd, 0x82be, 0x82c1, 0x82c4, 0x82c5, 0x82c6, 0x82c8, 0x82c9, 0x82cc,
-    0x82cd, 0x82dc, 0x82e0, 0x82e7, 0x82e8, 0x82e9, 0x82ea, 0x82f0, 0x82f1, 0x8341,
-    0x8343, 0x834e, 0x834f, 0x8358, 0x835e, 0x8362, 0x8367, 0x8375, 0x8376, 0x8389,
-    0x838a, 0x838b, 0x838d, 0x8393, 0x8e96, 0x93fa, 0x95aa
-  ];
-
-  this.nextChar = function(iter, det) {
-    iter.index = iter.nextIndex;
-    iter.error = false;
-
-    var firstByte;
-    firstByte = iter.charValue = iter.nextByte(det);
-    if (firstByte < 0)
-      return false;
-
-    if (firstByte <= 0x7f || (firstByte > 0xa0 && firstByte <= 0xdf))
-      return true;
-
-    var secondByte = iter.nextByte(det);
-    if (secondByte < 0)
-      return false;
-
-    iter.charValue = (firstByte << 8) | secondByte;
-    if (! ((secondByte >= 0x40 && secondByte <= 0x7f) || (secondByte >= 0x80 && secondByte <= 0xff))) {
-      // Illegal second byte value.
-      iter.error = true;
-    }
-    return true;
-  };
-};
-util.inherits(module.exports.sjis, mbcs);
-
-
-
-/**
- *   Big5 charset recognizer.
- */
-module.exports.big5 = function() {
-  this.name = function() {
-    return 'Big5';
-  };
-  this.language = function() {
-    return 'zh';
-  };
-  // TODO:  This set of data comes from the character frequency-
-  //        of-occurence analysis tool.  The data needs to be moved
-  //        into a resource and loaded from there.
-  this.commonChars = [
-    0xa140, 0xa141, 0xa142, 0xa143, 0xa147, 0xa149, 0xa175, 0xa176, 0xa440, 0xa446,
-    0xa447, 0xa448, 0xa451, 0xa454, 0xa457, 0xa464, 0xa46a, 0xa46c, 0xa477, 0xa4a3,
-    0xa4a4, 0xa4a7, 0xa4c1, 0xa4ce, 0xa4d1, 0xa4df, 0xa4e8, 0xa4fd, 0xa540, 0xa548,
-    0xa558, 0xa569, 0xa5cd, 0xa5e7, 0xa657, 0xa661, 0xa662, 0xa668, 0xa670, 0xa6a8,
-    0xa6b3, 0xa6b9, 0xa6d3, 0xa6db, 0xa6e6, 0xa6f2, 0xa740, 0xa751, 0xa759, 0xa7da,
-    0xa8a3, 0xa8a5, 0xa8ad, 0xa8d1, 0xa8d3, 0xa8e4, 0xa8fc, 0xa9c0, 0xa9d2, 0xa9f3,
-    0xaa6b, 0xaaba, 0xaabe, 0xaacc, 0xaafc, 0xac47, 0xac4f, 0xacb0, 0xacd2, 0xad59,
-    0xaec9, 0xafe0, 0xb0ea, 0xb16f, 0xb2b3, 0xb2c4, 0xb36f, 0xb44c, 0xb44e, 0xb54c,
-    0xb5a5, 0xb5bd, 0xb5d0, 0xb5d8, 0xb671, 0xb7ed, 0xb867, 0xb944, 0xbad8, 0xbb44,
-    0xbba1, 0xbdd1, 0xc2c4, 0xc3b9, 0xc440, 0xc45f
-  ];
-  this.nextChar = function(iter, det) {
-    iter.index = iter.nextIndex;
-    iter.error = false;
-
-    var firstByte = iter.charValue = iter.nextByte(det);
-
-    if (firstByte < 0)
-      return false;
-
-    // single byte character.
-    if (firstByte <= 0x7f || firstByte == 0xff)
-      return true;
-
-    var secondByte = iter.nextByte(det);
-
-    if (secondByte < 0)
-      return false;
-
-    iter.charValue = (iter.charValue << 8) | secondByte;
-
-    if (secondByte < 0x40 || secondByte == 0x7f || secondByte == 0xff)
-      iter.error = true;
-
-    return true;
-  };
-};
-util.inherits(module.exports.big5, mbcs);
-
-
-
-/**
- *  EUC charset recognizers.  One abstract class that provides the common function
- *  for getting the next character according to the EUC encoding scheme,
- *  and nested derived classes for EUC_KR, EUC_JP, EUC_CN.
- *
- *  Get the next character value for EUC based encodings.
- *  Character 'value' is simply the raw bytes that make up the character
- *     packed into an int.
- */
-function eucNextChar(iter, det) {
-  iter.index = iter.nextIndex;
-  iter.error = false;
-  var firstByte  = 0;
-  var secondByte = 0;
-  var thirdByte  = 0;
-  //int fourthByte = 0;
-  buildChar: {
-    firstByte = iter.charValue = iter.nextByte(det);
-    if (firstByte < 0) {
-      // Ran off the end of the input data
-      iter.done = true;
-      break buildChar;
-    }
-    if (firstByte <= 0x8d) {
-      // single byte char
-      break buildChar;
-    }
-    secondByte = iter.nextByte(det);
-    iter.charValue = (iter.charValue << 8) | secondByte;
-    if (firstByte >= 0xA1 && firstByte <= 0xfe) {
-      // Two byte Char
-      if (secondByte < 0xa1) {
-        iter.error = true;
-      }
-      break buildChar;
-    }
-    if (firstByte == 0x8e) {
-      // Code Set 2.
-      //   In EUC-JP, total char size is 2 bytes, only one byte of actual char value.
-      //   In EUC-TW, total char size is 4 bytes, three bytes contribute to char value.
-      // We don't know which we've got.
-      // Treat it like EUC-JP.  If the data really was EUC-TW, the following two
-      //   bytes will look like a well formed 2 byte char.
-      if (secondByte < 0xa1) {
-        iter.error = true;
-      }
-      break buildChar;
-    }
-    if (firstByte == 0x8f) {
-      // Code set 3.
-      // Three byte total char size, two bytes of actual char value.
-      thirdByte = iter.nextByte(det);
-      iter.charValue = (iter.charValue << 8) | thirdByte;
-      if (thirdByte < 0xa1) {
-        iter.error = true;
-      }
-    }
-  }
-  return iter.done == false;
-};
-
-
-
-/**
- * The charset recognize for EUC-JP.  A singleton instance of this class
- *    is created and kept by the public CharsetDetector class
- */
-module.exports.euc_jp = function() {
-  this.name = function() {
-    return 'EUC-JP';
-  };
-  this.language = function() {
-    return 'ja';
-  };
-
-  // TODO:  This set of data comes from the character frequency-
-  //        of-occurence analysis tool.  The data needs to be moved
-  //        into a resource and loaded from there.
-  this.commonChars = [
-    0xa1a1, 0xa1a2, 0xa1a3, 0xa1a6, 0xa1bc, 0xa1ca, 0xa1cb, 0xa1d6, 0xa1d7, 0xa4a2,
-    0xa4a4, 0xa4a6, 0xa4a8, 0xa4aa, 0xa4ab, 0xa4ac, 0xa4ad, 0xa4af, 0xa4b1, 0xa4b3,
-    0xa4b5, 0xa4b7, 0xa4b9, 0xa4bb, 0xa4bd, 0xa4bf, 0xa4c0, 0xa4c1, 0xa4c3, 0xa4c4,
-    0xa4c6, 0xa4c7, 0xa4c8, 0xa4c9, 0xa4ca, 0xa4cb, 0xa4ce, 0xa4cf, 0xa4d0, 0xa4de,
-    0xa4df, 0xa4e1, 0xa4e2, 0xa4e4, 0xa4e8, 0xa4e9, 0xa4ea, 0xa4eb, 0xa4ec, 0xa4ef,
-    0xa4f2, 0xa4f3, 0xa5a2, 0xa5a3, 0xa5a4, 0xa5a6, 0xa5a7, 0xa5aa, 0xa5ad, 0xa5af,
-    0xa5b0, 0xa5b3, 0xa5b5, 0xa5b7, 0xa5b8, 0xa5b9, 0xa5bf, 0xa5c3, 0xa5c6, 0xa5c7,
-    0xa5c8, 0xa5c9, 0xa5cb, 0xa5d0, 0xa5d5, 0xa5d6, 0xa5d7, 0xa5de, 0xa5e0, 0xa5e1,
-    0xa5e5, 0xa5e9, 0xa5ea, 0xa5eb, 0xa5ec, 0xa5ed, 0xa5f3, 0xb8a9, 0xb9d4, 0xbaee,
-    0xbbc8, 0xbef0, 0xbfb7, 0xc4ea, 0xc6fc, 0xc7bd, 0xcab8, 0xcaf3, 0xcbdc, 0xcdd1
-  ];
-
-  this.nextChar = eucNextChar;
-};
-util.inherits(module.exports.euc_jp, mbcs);
-
-
-
-/**
- * The charset recognize for EUC-KR.  A singleton instance of this class
- *    is created and kept by the public CharsetDetector class
- */
-module.exports.euc_kr = function() {
-  this.name = function() {
-    return 'EUC-KR';
-  };
-  this.language = function() {
-    return 'ko';
-  };
-
-  // TODO:  This set of data comes from the character frequency-
-  //        of-occurence analysis tool.  The data needs to be moved
-  //        into a resource and loaded from there.
-  this.commonChars = [
-    0xb0a1, 0xb0b3, 0xb0c5, 0xb0cd, 0xb0d4, 0xb0e6, 0xb0ed, 0xb0f8, 0xb0fa, 0xb0fc,
-    0xb1b8, 0xb1b9, 0xb1c7, 0xb1d7, 0xb1e2, 0xb3aa, 0xb3bb, 0xb4c2, 0xb4cf, 0xb4d9,
-    0xb4eb, 0xb5a5, 0xb5b5, 0xb5bf, 0xb5c7, 0xb5e9, 0xb6f3, 0xb7af, 0xb7c2, 0xb7ce,
-    0xb8a6, 0xb8ae, 0xb8b6, 0xb8b8, 0xb8bb, 0xb8e9, 0xb9ab, 0xb9ae, 0xb9cc, 0xb9ce,
-    0xb9fd, 0xbab8, 0xbace, 0xbad0, 0xbaf1, 0xbbe7, 0xbbf3, 0xbbfd, 0xbcad, 0xbcba,
-    0xbcd2, 0xbcf6, 0xbdba, 0xbdc0, 0xbdc3, 0xbdc5, 0xbec6, 0xbec8, 0xbedf, 0xbeee,
-    0xbef8, 0xbefa, 0xbfa1, 0xbfa9, 0xbfc0, 0xbfe4, 0xbfeb, 0xbfec, 0xbff8, 0xc0a7,
-    0xc0af, 0xc0b8, 0xc0ba, 0xc0bb, 0xc0bd, 0xc0c7, 0xc0cc, 0xc0ce, 0xc0cf, 0xc0d6,
-    0xc0da, 0xc0e5, 0xc0fb, 0xc0fc, 0xc1a4, 0xc1a6, 0xc1b6, 0xc1d6, 0xc1df, 0xc1f6,
-    0xc1f8, 0xc4a1, 0xc5cd, 0xc6ae, 0xc7cf, 0xc7d1, 0xc7d2, 0xc7d8, 0xc7e5, 0xc8ad
-  ];
-
-  this.nextChar = eucNextChar;
-};
-util.inherits(module.exports.euc_kr, mbcs);
-
-
-
-/**
- *   GB-18030 recognizer. Uses simplified Chinese statistics.
- */
-module.exports.gb_18030 = function() {
-  this.name = function() {
-    return 'GB18030';
-  };
-  this.language = function() {
-    return 'zh';
-  };
-
-  /*
-   *  Get the next character value for EUC based encodings.
-   *  Character 'value' is simply the raw bytes that make up the character
-   *     packed into an int.
-   */
-  this.nextChar = function(iter, det) {
-    iter.index = iter.nextIndex;
-    iter.error = false;
-    var firstByte  = 0;
-    var secondByte = 0;
-    var thirdByte  = 0;
-    var fourthByte = 0;
-    buildChar: {
-      firstByte = iter.charValue = iter.nextByte(det);
-      if (firstByte < 0) {
-        // Ran off the end of the input data
-        iter.done = true;
-        break buildChar;
-      }
-      if (firstByte <= 0x80) {
-        // single byte char
-        break buildChar;
-      }
-      secondByte = iter.nextByte(det);
-      iter.charValue = (iter.charValue << 8) | secondByte;
-      if (firstByte >= 0x81 && firstByte <= 0xFE) {
-        // Two byte Char
-        if ((secondByte >= 0x40 && secondByte <= 0x7E) || (secondByte >=80 && secondByte <= 0xFE)) {
-          break buildChar;
-        }
-        // Four byte char
-        if (secondByte >= 0x30 && secondByte <= 0x39) {
-          thirdByte = iter.nextByte(det);
-          if (thirdByte >= 0x81 && thirdByte <= 0xFE) {
-            fourthByte = iter.nextByte(det);
-            if (fourthByte >= 0x30 && fourthByte <= 0x39) {
-              iter.charValue = (iter.charValue << 16) | (thirdByte << 8) | fourthByte;
-              break buildChar;
-            }
-          }
-        }
-        iter.error = true;
-        break buildChar;
-      }
-    }
-    return iter.done == false;
-  };
-
-  // TODO:  This set of data comes from the character frequency-
-  //        of-occurence analysis tool.  The data needs to be moved
-  //        into a resource and loaded from there.
-  this.commonChars = [
-    0xa1a1, 0xa1a2, 0xa1a3, 0xa1a4, 0xa1b0, 0xa1b1, 0xa1f1, 0xa1f3, 0xa3a1, 0xa3ac,
-    0xa3ba, 0xb1a8, 0xb1b8, 0xb1be, 0xb2bb, 0xb3c9, 0xb3f6, 0xb4f3, 0xb5bd, 0xb5c4,
-    0xb5e3, 0xb6af, 0xb6d4, 0xb6e0, 0xb7a2, 0xb7a8, 0xb7bd, 0xb7d6, 0xb7dd, 0xb8b4,
-    0xb8df, 0xb8f6, 0xb9ab, 0xb9c9, 0xb9d8, 0xb9fa, 0xb9fd, 0xbacd, 0xbba7, 0xbbd6,
-    0xbbe1, 0xbbfa, 0xbcbc, 0xbcdb, 0xbcfe, 0xbdcc, 0xbecd, 0xbedd, 0xbfb4, 0xbfc6,
-    0xbfc9, 0xc0b4, 0xc0ed, 0xc1cb, 0xc2db, 0xc3c7, 0xc4dc, 0xc4ea, 0xc5cc, 0xc6f7,
-    0xc7f8, 0xc8ab, 0xc8cb, 0xc8d5, 0xc8e7, 0xc9cf, 0xc9fa, 0xcab1, 0xcab5, 0xcac7,
-    0xcad0, 0xcad6, 0xcaf5, 0xcafd, 0xccec, 0xcdf8, 0xceaa, 0xcec4, 0xced2, 0xcee5,
-    0xcfb5, 0xcfc2, 0xcfd6, 0xd0c2, 0xd0c5, 0xd0d0, 0xd0d4, 0xd1a7, 0xd2aa, 0xd2b2,
-    0xd2b5, 0xd2bb, 0xd2d4, 0xd3c3, 0xd3d0, 0xd3fd, 0xd4c2, 0xd4da, 0xd5e2, 0xd6d0
-  ];
-};
-util.inherits(module.exports.gb_18030, mbcs);
-
-
-/***/ }),
-/* 701 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var util = __webpack_require__(3),
-  Match = __webpack_require__ (142);
-
-/**
- * This class recognizes single-byte encodings. Because the encoding scheme is so
- * simple, language statistics are used to do the matching.
- */
-
-function NGramParser(theNgramList, theByteMap) {
-  var N_GRAM_MASK = 0xFFFFFF;
-
-  this.byteIndex = 0;
-  this.ngram = 0;
-
-  this.ngramList = theNgramList;
-  this.byteMap = theByteMap;
-
-  this.ngramCount = 0;
-  this.hitCount = 0;
-
-  this.spaceChar;
-
-  /*
-   * Binary search for value in table, which must have exactly 64 entries.
-   */
-  this.search = function(table, value) {
-    var index = 0;
-
-    if (table[index + 32] <= value) index += 32;
-    if (table[index + 16] <= value) index += 16;
-    if (table[index + 8]  <= value) index += 8;
-    if (table[index + 4]  <= value) index += 4;
-    if (table[index + 2]  <= value) index += 2;
-    if (table[index + 1]  <= value) index += 1;
-    if (table[index]      > value)  index -= 1;
-
-    if (index < 0 || table[index] != value)
-      return -1;
-
-    return index;
-  };
-
-  this.lookup = function(thisNgram) {
-    this.ngramCount += 1;
-    if (this.search(this.ngramList, thisNgram) >= 0) {
-      this.hitCount += 1;
-    }
-  };
-
-  this.addByte = function(b) {
-    this.ngram = ((this.ngram << 8) + (b & 0xFF)) & N_GRAM_MASK;
-    this.lookup(this.ngram);
-  }
-
-  this.nextByte = function(det) {
-    if (this.byteIndex >= det.fInputLen)
-      return -1;
-
-    return det.fInputBytes[this.byteIndex++] & 0xFF;
-  }
-
-  this.parse = function(det, spaceCh) {
-    var b, ignoreSpace = false;
-    this.spaceChar = spaceCh;
-
-    while ((b = this.nextByte(det)) >= 0) {
-      var mb = this.byteMap[b];
-
-      // TODO: 0x20 might not be a space in all character sets...
-      if (mb != 0) {
-        if (!(mb == this.spaceChar && ignoreSpace)) {
-          this.addByte(mb);
-        }
-
-        ignoreSpace = (mb == this.spaceChar);
-      }
-    }
-
-    // TODO: Is this OK? The buffer could have ended in the middle of a word...
-    this.addByte(this.spaceChar);
-
-    var rawPercent = this.hitCount / this.ngramCount;
-
-    // TODO - This is a bit of a hack to take care of a case
-    // were we were getting a confidence of 135...
-    if (rawPercent > 0.33)
-      return 98;
-
-    return Math.floor(rawPercent * 300.0);
-  };
-};
-
-function NGramsPlusLang(la, ng) {
-  this.fLang = la;
-  this.fNGrams = ng;
-};
-
-function sbcs() {};
-sbcs.prototype.spaceChar = 0x20;
-sbcs.prototype.ngrams = function() {};
-sbcs.prototype.byteMap = function() {};
-sbcs.prototype.match = function(det) {
-
-  var ngrams = this.ngrams();
-  var multiple = (Array.isArray(ngrams) && ngrams[0] instanceof NGramsPlusLang);
-
-  if (!multiple) {
-    var parser = new NGramParser(ngrams, this.byteMap());
-    var confidence = parser.parse(det, this.spaceChar);
-    return confidence <= 0 ? null : new Match(det, this, confidence);
-  }
-
-  var bestConfidenceSoFar = -1;
-  var lang = null;
-
-  for (var i = ngrams.length - 1; i >= 0; i--) {
-    var ngl = ngrams[i];
-
-    var parser = new NGramParser(ngl.fNGrams, this.byteMap());
-    var confidence = parser.parse(det, this.spaceChar);
-    if (confidence > bestConfidenceSoFar) {
-      bestConfidenceSoFar = confidence;
-      lang = ngl.fLang;
-    }
-  }
-
-  var name = this.name(det);
-  return bestConfidenceSoFar <= 0 ? null : new Match(det, this, bestConfidenceSoFar, name, lang);
-};
-
-
-module.exports.ISO_8859_1 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0xAA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0xB5, 0x20, 0x20,
-      0x20, 0x20, 0xBA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      new NGramsPlusLang('da', [
-        0x206166, 0x206174, 0x206465, 0x20656E, 0x206572, 0x20666F, 0x206861, 0x206920,
-        0x206D65, 0x206F67, 0x2070E5, 0x207369, 0x207374, 0x207469, 0x207669, 0x616620,
-        0x616E20, 0x616E64, 0x617220, 0x617420, 0x646520, 0x64656E, 0x646572, 0x646574,
-        0x652073, 0x656420, 0x656465, 0x656E20, 0x656E64, 0x657220, 0x657265, 0x657320,
-        0x657420, 0x666F72, 0x676520, 0x67656E, 0x676572, 0x696765, 0x696C20, 0x696E67,
-        0x6B6520, 0x6B6B65, 0x6C6572, 0x6C6967, 0x6C6C65, 0x6D6564, 0x6E6465, 0x6E6520,
-        0x6E6720, 0x6E6765, 0x6F6720, 0x6F6D20, 0x6F7220, 0x70E520, 0x722064, 0x722065,
-        0x722073, 0x726520, 0x737465, 0x742073, 0x746520, 0x746572, 0x74696C, 0x766572
-      ]),
-      new NGramsPlusLang('de', [
-        0x20616E, 0x206175, 0x206265, 0x206461, 0x206465, 0x206469, 0x206569, 0x206765,
-        0x206861, 0x20696E, 0x206D69, 0x207363, 0x207365, 0x20756E, 0x207665, 0x20766F,
-        0x207765, 0x207A75, 0x626572, 0x636820, 0x636865, 0x636874, 0x646173, 0x64656E,
-        0x646572, 0x646965, 0x652064, 0x652073, 0x65696E, 0x656974, 0x656E20, 0x657220,
-        0x657320, 0x67656E, 0x68656E, 0x687420, 0x696368, 0x696520, 0x696E20, 0x696E65,
-        0x697420, 0x6C6963, 0x6C6C65, 0x6E2061, 0x6E2064, 0x6E2073, 0x6E6420, 0x6E6465,
-        0x6E6520, 0x6E6720, 0x6E6765, 0x6E7465, 0x722064, 0x726465, 0x726569, 0x736368,
-        0x737465, 0x742064, 0x746520, 0x74656E, 0x746572, 0x756E64, 0x756E67, 0x766572
-      ]),
-      new NGramsPlusLang('en', [
-        0x206120, 0x20616E, 0x206265, 0x20636F, 0x20666F, 0x206861, 0x206865, 0x20696E,
-        0x206D61, 0x206F66, 0x207072, 0x207265, 0x207361, 0x207374, 0x207468, 0x20746F,
-        0x207768, 0x616964, 0x616C20, 0x616E20, 0x616E64, 0x617320, 0x617420, 0x617465,
-        0x617469, 0x642061, 0x642074, 0x652061, 0x652073, 0x652074, 0x656420, 0x656E74,
-        0x657220, 0x657320, 0x666F72, 0x686174, 0x686520, 0x686572, 0x696420, 0x696E20,
-        0x696E67, 0x696F6E, 0x697320, 0x6E2061, 0x6E2074, 0x6E6420, 0x6E6720, 0x6E7420,
-        0x6F6620, 0x6F6E20, 0x6F7220, 0x726520, 0x727320, 0x732061, 0x732074, 0x736169,
-        0x737420, 0x742074, 0x746572, 0x746861, 0x746865, 0x74696F, 0x746F20, 0x747320
-      ]),
-      new NGramsPlusLang('es', [
-        0x206120, 0x206361, 0x20636F, 0x206465, 0x20656C, 0x20656E, 0x206573, 0x20696E,
-        0x206C61, 0x206C6F, 0x207061, 0x20706F, 0x207072, 0x207175, 0x207265, 0x207365,
-        0x20756E, 0x207920, 0x612063, 0x612064, 0x612065, 0x61206C, 0x612070, 0x616369,
-        0x61646F, 0x616C20, 0x617220, 0x617320, 0x6369F3, 0x636F6E, 0x646520, 0x64656C,
-        0x646F20, 0x652064, 0x652065, 0x65206C, 0x656C20, 0x656E20, 0x656E74, 0x657320,
-        0x657374, 0x69656E, 0x69F36E, 0x6C6120, 0x6C6F73, 0x6E2065, 0x6E7465, 0x6F2064,
-        0x6F2065, 0x6F6E20, 0x6F7220, 0x6F7320, 0x706172, 0x717565, 0x726120, 0x726573,
-        0x732064, 0x732065, 0x732070, 0x736520, 0x746520, 0x746F20, 0x756520, 0xF36E20
-      ]),
-      new NGramsPlusLang('fr', [
-        0x206175, 0x20636F, 0x206461, 0x206465, 0x206475, 0x20656E, 0x206574, 0x206C61,
-        0x206C65, 0x207061, 0x20706F, 0x207072, 0x207175, 0x207365, 0x20736F, 0x20756E,
-        0x20E020, 0x616E74, 0x617469, 0x636520, 0x636F6E, 0x646520, 0x646573, 0x647520,
-        0x652061, 0x652063, 0x652064, 0x652065, 0x65206C, 0x652070, 0x652073, 0x656E20,
-        0x656E74, 0x657220, 0x657320, 0x657420, 0x657572, 0x696F6E, 0x697320, 0x697420,
-        0x6C6120, 0x6C6520, 0x6C6573, 0x6D656E, 0x6E2064, 0x6E6520, 0x6E7320, 0x6E7420,
-        0x6F6E20, 0x6F6E74, 0x6F7572, 0x717565, 0x72206C, 0x726520, 0x732061, 0x732064,
-        0x732065, 0x73206C, 0x732070, 0x742064, 0x746520, 0x74696F, 0x756520, 0x757220
-      ]),
-      new NGramsPlusLang('it', [
-        0x20616C, 0x206368, 0x20636F, 0x206465, 0x206469, 0x206520, 0x20696C, 0x20696E,
-        0x206C61, 0x207065, 0x207072, 0x20756E, 0x612063, 0x612064, 0x612070, 0x612073,
-        0x61746F, 0x636865, 0x636F6E, 0x64656C, 0x646920, 0x652061, 0x652063, 0x652064,
-        0x652069, 0x65206C, 0x652070, 0x652073, 0x656C20, 0x656C6C, 0x656E74, 0x657220,
-        0x686520, 0x692061, 0x692063, 0x692064, 0x692073, 0x696120, 0x696C20, 0x696E20,
-        0x696F6E, 0x6C6120, 0x6C6520, 0x6C6920, 0x6C6C61, 0x6E6520, 0x6E6920, 0x6E6F20,
-        0x6E7465, 0x6F2061, 0x6F2064, 0x6F2069, 0x6F2073, 0x6F6E20, 0x6F6E65, 0x706572,
-        0x726120, 0x726520, 0x736920, 0x746120, 0x746520, 0x746920, 0x746F20, 0x7A696F
-      ]),
-      new NGramsPlusLang('nl', [
-        0x20616C, 0x206265, 0x206461, 0x206465, 0x206469, 0x206565, 0x20656E, 0x206765,
-        0x206865, 0x20696E, 0x206D61, 0x206D65, 0x206F70, 0x207465, 0x207661, 0x207665,
-        0x20766F, 0x207765, 0x207A69, 0x61616E, 0x616172, 0x616E20, 0x616E64, 0x617220,
-        0x617420, 0x636874, 0x646520, 0x64656E, 0x646572, 0x652062, 0x652076, 0x65656E,
-        0x656572, 0x656E20, 0x657220, 0x657273, 0x657420, 0x67656E, 0x686574, 0x696520,
-        0x696E20, 0x696E67, 0x697320, 0x6E2062, 0x6E2064, 0x6E2065, 0x6E2068, 0x6E206F,
-        0x6E2076, 0x6E6465, 0x6E6720, 0x6F6E64, 0x6F6F72, 0x6F7020, 0x6F7220, 0x736368,
-        0x737465, 0x742064, 0x746520, 0x74656E, 0x746572, 0x76616E, 0x766572, 0x766F6F
-      ]),
-      new NGramsPlusLang('no', [
-        0x206174, 0x206176, 0x206465, 0x20656E, 0x206572, 0x20666F, 0x206861, 0x206920,
-        0x206D65, 0x206F67, 0x2070E5, 0x207365, 0x20736B, 0x20736F, 0x207374, 0x207469,
-        0x207669, 0x20E520, 0x616E64, 0x617220, 0x617420, 0x646520, 0x64656E, 0x646574,
-        0x652073, 0x656420, 0x656E20, 0x656E65, 0x657220, 0x657265, 0x657420, 0x657474,
-        0x666F72, 0x67656E, 0x696B6B, 0x696C20, 0x696E67, 0x6B6520, 0x6B6B65, 0x6C6520,
-        0x6C6C65, 0x6D6564, 0x6D656E, 0x6E2073, 0x6E6520, 0x6E6720, 0x6E6765, 0x6E6E65,
-        0x6F6720, 0x6F6D20, 0x6F7220, 0x70E520, 0x722073, 0x726520, 0x736F6D, 0x737465,
-        0x742073, 0x746520, 0x74656E, 0x746572, 0x74696C, 0x747420, 0x747465, 0x766572
-      ]),
-      new NGramsPlusLang('pt', [
-        0x206120, 0x20636F, 0x206461, 0x206465, 0x20646F, 0x206520, 0x206573, 0x206D61,
-        0x206E6F, 0x206F20, 0x207061, 0x20706F, 0x207072, 0x207175, 0x207265, 0x207365,
-        0x20756D, 0x612061, 0x612063, 0x612064, 0x612070, 0x616465, 0x61646F, 0x616C20,
-        0x617220, 0x617261, 0x617320, 0x636F6D, 0x636F6E, 0x646120, 0x646520, 0x646F20,
-        0x646F73, 0x652061, 0x652064, 0x656D20, 0x656E74, 0x657320, 0x657374, 0x696120,
-        0x696361, 0x6D656E, 0x6E7465, 0x6E746F, 0x6F2061, 0x6F2063, 0x6F2064, 0x6F2065,
-        0x6F2070, 0x6F7320, 0x706172, 0x717565, 0x726120, 0x726573, 0x732061, 0x732064,
-        0x732065, 0x732070, 0x737461, 0x746520, 0x746F20, 0x756520, 0xE36F20, 0xE7E36F
-      ]),
-      new NGramsPlusLang('sv', [
-        0x206174, 0x206176, 0x206465, 0x20656E, 0x2066F6, 0x206861, 0x206920, 0x20696E,
-        0x206B6F, 0x206D65, 0x206F63, 0x2070E5, 0x20736B, 0x20736F, 0x207374, 0x207469,
-        0x207661, 0x207669, 0x20E472, 0x616465, 0x616E20, 0x616E64, 0x617220, 0x617474,
-        0x636820, 0x646520, 0x64656E, 0x646572, 0x646574, 0x656420, 0x656E20, 0x657220,
-        0x657420, 0x66F672, 0x67656E, 0x696C6C, 0x696E67, 0x6B6120, 0x6C6C20, 0x6D6564,
-        0x6E2073, 0x6E6120, 0x6E6465, 0x6E6720, 0x6E6765, 0x6E696E, 0x6F6368, 0x6F6D20,
-        0x6F6E20, 0x70E520, 0x722061, 0x722073, 0x726120, 0x736B61, 0x736F6D, 0x742073,
-        0x746120, 0x746520, 0x746572, 0x74696C, 0x747420, 0x766172, 0xE47220, 0xF67220,
-      ])
-    ];
-  };
-
-  this.name = function(det) {
-    return (det && det.fC1Bytes) ? 'windows-1252' : 'ISO-8859-1';
-  };
-};
-util.inherits(module.exports.ISO_8859_1, sbcs);
-
-
-module.exports.ISO_8859_2 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0xB1, 0x20, 0xB3, 0x20, 0xB5, 0xB6, 0x20,
-      0x20, 0xB9, 0xBA, 0xBB, 0xBC, 0x20, 0xBE, 0xBF,
-      0x20, 0xB1, 0x20, 0xB3, 0x20, 0xB5, 0xB6, 0xB7,
-      0x20, 0xB9, 0xBA, 0xBB, 0xBC, 0x20, 0xBE, 0xBF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0x20
-    ];
-  }
-
-  this.ngrams = function() {
-    return [
-      new NGramsPlusLang('cs', [
-        0x206120, 0x206279, 0x20646F, 0x206A65, 0x206E61, 0x206E65, 0x206F20, 0x206F64,
-        0x20706F, 0x207072, 0x2070F8, 0x20726F, 0x207365, 0x20736F, 0x207374, 0x20746F,
-        0x207620, 0x207679, 0x207A61, 0x612070, 0x636520, 0x636820, 0x652070, 0x652073,
-        0x652076, 0x656D20, 0x656EED, 0x686F20, 0x686F64, 0x697374, 0x6A6520, 0x6B7465,
-        0x6C6520, 0x6C6920, 0x6E6120, 0x6EE920, 0x6EEC20, 0x6EED20, 0x6F2070, 0x6F646E,
-        0x6F6A69, 0x6F7374, 0x6F7520, 0x6F7661, 0x706F64, 0x706F6A, 0x70726F, 0x70F865,
-        0x736520, 0x736F75, 0x737461, 0x737469, 0x73746E, 0x746572, 0x746EED, 0x746F20,
-        0x752070, 0xBE6520, 0xE16EED, 0xE9686F, 0xED2070, 0xED2073, 0xED6D20, 0xF86564,
-      ]),
-      new NGramsPlusLang('hu', [
-        0x206120, 0x20617A, 0x206265, 0x206567, 0x20656C, 0x206665, 0x206861, 0x20686F,
-        0x206973, 0x206B65, 0x206B69, 0x206BF6, 0x206C65, 0x206D61, 0x206D65, 0x206D69,
-        0x206E65, 0x20737A, 0x207465, 0x20E973, 0x612061, 0x61206B, 0x61206D, 0x612073,
-        0x616B20, 0x616E20, 0x617A20, 0x62616E, 0x62656E, 0x656779, 0x656B20, 0x656C20,
-        0x656C65, 0x656D20, 0x656E20, 0x657265, 0x657420, 0x657465, 0x657474, 0x677920,
-        0x686F67, 0x696E74, 0x697320, 0x6B2061, 0x6BF67A, 0x6D6567, 0x6D696E, 0x6E2061,
-        0x6E616B, 0x6E656B, 0x6E656D, 0x6E7420, 0x6F6779, 0x732061, 0x737A65, 0x737A74,
-        0x737AE1, 0x73E967, 0x742061, 0x747420, 0x74E173, 0x7A6572, 0xE16E20, 0xE97320,
-      ]),
-      new NGramsPlusLang('pl', [
-        0x20637A, 0x20646F, 0x206920, 0x206A65, 0x206B6F, 0x206D61, 0x206D69, 0x206E61,
-        0x206E69, 0x206F64, 0x20706F, 0x207072, 0x207369, 0x207720, 0x207769, 0x207779,
-        0x207A20, 0x207A61, 0x612070, 0x612077, 0x616E69, 0x636820, 0x637A65, 0x637A79,
-        0x646F20, 0x647A69, 0x652070, 0x652073, 0x652077, 0x65207A, 0x65676F, 0x656A20,
-        0x656D20, 0x656E69, 0x676F20, 0x696120, 0x696520, 0x69656A, 0x6B6120, 0x6B6920,
-        0x6B6965, 0x6D6965, 0x6E6120, 0x6E6961, 0x6E6965, 0x6F2070, 0x6F7761, 0x6F7769,
-        0x706F6C, 0x707261, 0x70726F, 0x70727A, 0x727A65, 0x727A79, 0x7369EA, 0x736B69,
-        0x737461, 0x776965, 0x796368, 0x796D20, 0x7A6520, 0x7A6965, 0x7A7920, 0xF37720,
-      ]),
-      new NGramsPlusLang('ro', [
-        0x206120, 0x206163, 0x206361, 0x206365, 0x20636F, 0x206375, 0x206465, 0x206469,
-        0x206C61, 0x206D61, 0x207065, 0x207072, 0x207365, 0x2073E3, 0x20756E, 0x20BA69,
-        0x20EE6E, 0x612063, 0x612064, 0x617265, 0x617420, 0x617465, 0x617520, 0x636172,
-        0x636F6E, 0x637520, 0x63E320, 0x646520, 0x652061, 0x652063, 0x652064, 0x652070,
-        0x652073, 0x656120, 0x656920, 0x656C65, 0x656E74, 0x657374, 0x692061, 0x692063,
-        0x692064, 0x692070, 0x696520, 0x696920, 0x696E20, 0x6C6120, 0x6C6520, 0x6C6F72,
-        0x6C7569, 0x6E6520, 0x6E7472, 0x6F7220, 0x70656E, 0x726520, 0x726561, 0x727520,
-        0x73E320, 0x746520, 0x747275, 0x74E320, 0x756920, 0x756C20, 0xBA6920, 0xEE6E20,
-      ])
-    ];
-  };
-
-  this.name = function(det) {
-    return (det && det.fC1Bytes) ? 'windows-1250' : 'ISO-8859-2';
-  };
-};
-util.inherits(module.exports.ISO_8859_2, sbcs);
-
-
-module.exports.ISO_8859_5 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0x20, 0xFE, 0xFF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
-      0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
-      0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0x20, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0x20, 0xFE, 0xFF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20D220, 0x20D2DE, 0x20D4DE, 0x20D7D0, 0x20D820, 0x20DAD0, 0x20DADE, 0x20DDD0,
-      0x20DDD5, 0x20DED1, 0x20DFDE, 0x20DFE0, 0x20E0D0, 0x20E1DE, 0x20E1E2, 0x20E2DE,
-      0x20E7E2, 0x20EDE2, 0xD0DDD8, 0xD0E2EC, 0xD3DE20, 0xD5DBEC, 0xD5DDD8, 0xD5E1E2,
-      0xD5E220, 0xD820DF, 0xD8D520, 0xD8D820, 0xD8EF20, 0xDBD5DD, 0xDBD820, 0xDBECDD,
-      0xDDD020, 0xDDD520, 0xDDD8D5, 0xDDD8EF, 0xDDDE20, 0xDDDED2, 0xDE20D2, 0xDE20DF,
-      0xDE20E1, 0xDED220, 0xDED2D0, 0xDED3DE, 0xDED920, 0xDEDBEC, 0xDEDC20, 0xDEE1E2,
-      0xDFDEDB, 0xDFE0D5, 0xDFE0D8, 0xDFE0DE, 0xE0D0D2, 0xE0D5D4, 0xE1E2D0, 0xE1E2D2,
-      0xE1E2D8, 0xE1EF20, 0xE2D5DB, 0xE2DE20, 0xE2DEE0, 0xE2EC20, 0xE7E2DE, 0xEBE520
-    ];
-  };
-
-  this.name = function(det) {
-    return 'ISO-8859-5';
-  };
-
-  this.language = function() {
-    return 'ru';
-  };
-};
-util.inherits(module.exports.ISO_8859_5, sbcs);
-
-
-module.exports.ISO_8859_6 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
-      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
-      0xD8, 0xD9, 0xDA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20C7E4, 0x20C7E6, 0x20C8C7, 0x20D9E4, 0x20E1EA, 0x20E4E4, 0x20E5E6, 0x20E8C7,
-      0xC720C7, 0xC7C120, 0xC7CA20, 0xC7D120, 0xC7E420, 0xC7E4C3, 0xC7E4C7, 0xC7E4C8,
-      0xC7E4CA, 0xC7E4CC, 0xC7E4CD, 0xC7E4CF, 0xC7E4D3, 0xC7E4D9, 0xC7E4E2, 0xC7E4E5,
-      0xC7E4E8, 0xC7E4EA, 0xC7E520, 0xC7E620, 0xC7E6CA, 0xC820C7, 0xC920C7, 0xC920E1,
-      0xC920E4, 0xC920E5, 0xC920E8, 0xCA20C7, 0xCF20C7, 0xCFC920, 0xD120C7, 0xD1C920,
-      0xD320C7, 0xD920C7, 0xD9E4E9, 0xE1EA20, 0xE420C7, 0xE4C920, 0xE4E920, 0xE4EA20,
-      0xE520C7, 0xE5C720, 0xE5C920, 0xE5E620, 0xE620C7, 0xE720C7, 0xE7C720, 0xE8C7E4,
-      0xE8E620, 0xE920C7, 0xEA20C7, 0xEA20E5, 0xEA20E8, 0xEAC920, 0xEAD120, 0xEAE620
-    ];
-  };
-
-  this.name = function(det) {
-    return 'ISO-8859-6';
-  };
-
-  this.language = function() {
-    return 'ar';
-  };
-};
-util.inherits(module.exports.ISO_8859_6, sbcs);
-
-
-module.exports.ISO_8859_7 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0xA1, 0xA2, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0xDC, 0x20,
-      0xDD, 0xDE, 0xDF, 0x20, 0xFC, 0x20, 0xFD, 0xFE,
-      0xC0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0x20, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xDC, 0xDD, 0xDE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0x20
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20E1ED, 0x20E1F0, 0x20E3E9, 0x20E4E9, 0x20E5F0, 0x20E720, 0x20EAE1, 0x20ECE5,
-      0x20EDE1, 0x20EF20, 0x20F0E1, 0x20F0EF, 0x20F0F1, 0x20F3F4, 0x20F3F5, 0x20F4E7,
-      0x20F4EF, 0xDFE120, 0xE120E1, 0xE120F4, 0xE1E920, 0xE1ED20, 0xE1F0FC, 0xE1F220,
-      0xE3E9E1, 0xE5E920, 0xE5F220, 0xE720F4, 0xE7ED20, 0xE7F220, 0xE920F4, 0xE9E120,
-      0xE9EADE, 0xE9F220, 0xEAE1E9, 0xEAE1F4, 0xECE520, 0xED20E1, 0xED20E5, 0xED20F0,
-      0xEDE120, 0xEFF220, 0xEFF520, 0xF0EFF5, 0xF0F1EF, 0xF0FC20, 0xF220E1, 0xF220E5,
-      0xF220EA, 0xF220F0, 0xF220F4, 0xF3E520, 0xF3E720, 0xF3F4EF, 0xF4E120, 0xF4E1E9,
-      0xF4E7ED, 0xF4E7F2, 0xF4E9EA, 0xF4EF20, 0xF4EFF5, 0xF4F9ED, 0xF9ED20, 0xFEED20
-    ];
-  };
-
-  this.name = function(det) {
-    return (det && det.fC1Bytes) ? 'windows-1253' : 'ISO-8859-7';
-  };
-
-  this.language = function() {
-    return 'el';
-  };
-};
-util.inherits(module.exports.ISO_8859_7, sbcs);
-
-module.exports.ISO_8859_8 = function() {
-
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0xB5, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0x20, 0x20, 0x20, 0x20, 0x20
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      new NGramsPlusLang('he', [
-        0x20E0E5, 0x20E0E7, 0x20E0E9, 0x20E0FA, 0x20E1E9, 0x20E1EE, 0x20E4E0, 0x20E4E5,
-        0x20E4E9, 0x20E4EE, 0x20E4F2, 0x20E4F9, 0x20E4FA, 0x20ECE0, 0x20ECE4, 0x20EEE0,
-        0x20F2EC, 0x20F9EC, 0xE0FA20, 0xE420E0, 0xE420E1, 0xE420E4, 0xE420EC, 0xE420EE,
-        0xE420F9, 0xE4E5E0, 0xE5E020, 0xE5ED20, 0xE5EF20, 0xE5F820, 0xE5FA20, 0xE920E4,
-        0xE9E420, 0xE9E5FA, 0xE9E9ED, 0xE9ED20, 0xE9EF20, 0xE9F820, 0xE9FA20, 0xEC20E0,
-        0xEC20E4, 0xECE020, 0xECE420, 0xED20E0, 0xED20E1, 0xED20E4, 0xED20EC, 0xED20EE,
-        0xED20F9, 0xEEE420, 0xEF20E4, 0xF0E420, 0xF0E920, 0xF0E9ED, 0xF2EC20, 0xF820E4,
-        0xF8E9ED, 0xF9EC20, 0xFA20E0, 0xFA20E1, 0xFA20E4, 0xFA20EC, 0xFA20EE, 0xFA20F9,
-      ]),
-      new NGramsPlusLang('he', [
-        0x20E0E5, 0x20E0EC, 0x20E4E9, 0x20E4EC, 0x20E4EE, 0x20E4F0, 0x20E9F0, 0x20ECF2,
-        0x20ECF9, 0x20EDE5, 0x20EDE9, 0x20EFE5, 0x20EFE9, 0x20F8E5, 0x20F8E9, 0x20FAE0,
-        0x20FAE5, 0x20FAE9, 0xE020E4, 0xE020EC, 0xE020ED, 0xE020FA, 0xE0E420, 0xE0E5E4,
-        0xE0EC20, 0xE0EE20, 0xE120E4, 0xE120ED, 0xE120FA, 0xE420E4, 0xE420E9, 0xE420EC,
-        0xE420ED, 0xE420EF, 0xE420F8, 0xE420FA, 0xE4EC20, 0xE5E020, 0xE5E420, 0xE7E020,
-        0xE9E020, 0xE9E120, 0xE9E420, 0xEC20E4, 0xEC20ED, 0xEC20FA, 0xECF220, 0xECF920,
-        0xEDE9E9, 0xEDE9F0, 0xEDE9F8, 0xEE20E4, 0xEE20ED, 0xEE20FA, 0xEEE120, 0xEEE420,
-        0xF2E420, 0xF920E4, 0xF920ED, 0xF920FA, 0xF9E420, 0xFAE020, 0xFAE420, 0xFAE5E9,
-      ])
-    ];
-  };
-
-  this.name = function(det) {
-    return (det && det.fC1Bytes) ? 'windows-1255' : 'ISO-8859-8';
-  };
-
-  this.language = function() {
-    return 'he';
-  };
-
-};
-util.inherits(module.exports.ISO_8859_8, sbcs);
-
-
-module.exports.ISO_8859_9 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0xAA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0xB5, 0x20, 0x20,
-      0x20, 0x20, 0xBA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0x69, 0xFE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0x20,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x206261, 0x206269, 0x206275, 0x206461, 0x206465, 0x206765, 0x206861, 0x20696C,
-      0x206B61, 0x206B6F, 0x206D61, 0x206F6C, 0x207361, 0x207461, 0x207665, 0x207961,
-      0x612062, 0x616B20, 0x616C61, 0x616D61, 0x616E20, 0x616EFD, 0x617220, 0x617261,
-      0x6172FD, 0x6173FD, 0x617961, 0x626972, 0x646120, 0x646520, 0x646920, 0x652062,
-      0x65206B, 0x656469, 0x656E20, 0x657220, 0x657269, 0x657369, 0x696C65, 0x696E20,
-      0x696E69, 0x697220, 0x6C616E, 0x6C6172, 0x6C6520, 0x6C6572, 0x6E2061, 0x6E2062,
-      0x6E206B, 0x6E6461, 0x6E6465, 0x6E6520, 0x6E6920, 0x6E696E, 0x6EFD20, 0x72696E,
-      0x72FD6E, 0x766520, 0x796120, 0x796F72, 0xFD6E20, 0xFD6E64, 0xFD6EFD, 0xFDF0FD
-    ];
-  };
-
-  this.name = function(det) {
-    return (det && det.fC1Bytes) ? 'windows-1254' : 'ISO-8859-9';
-  };
-
-  this.language = function() {
-    return 'tr';
-  };
-};
-util.inherits(module.exports.ISO_8859_9, sbcs);
-
-
-module.exports.windows_1251 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x90, 0x83, 0x20, 0x83, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x9A, 0x20, 0x9C, 0x9D, 0x9E, 0x9F,
-      0x90, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x9A, 0x20, 0x9C, 0x9D, 0x9E, 0x9F,
-      0x20, 0xA2, 0xA2, 0xBC, 0x20, 0xB4, 0x20, 0x20,
-      0xB8, 0x20, 0xBA, 0x20, 0x20, 0x20, 0x20, 0xBF,
-      0x20, 0x20, 0xB3, 0xB3, 0xB4, 0xB5, 0x20, 0x20,
-      0xB8, 0x20, 0xBA, 0x20, 0xBC, 0xBE, 0xBE, 0xBF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
-      0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20E220, 0x20E2EE, 0x20E4EE, 0x20E7E0, 0x20E820, 0x20EAE0, 0x20EAEE, 0x20EDE0,
-      0x20EDE5, 0x20EEE1, 0x20EFEE, 0x20EFF0, 0x20F0E0, 0x20F1EE, 0x20F1F2, 0x20F2EE,
-      0x20F7F2, 0x20FDF2, 0xE0EDE8, 0xE0F2FC, 0xE3EE20, 0xE5EBFC, 0xE5EDE8, 0xE5F1F2,
-      0xE5F220, 0xE820EF, 0xE8E520, 0xE8E820, 0xE8FF20, 0xEBE5ED, 0xEBE820, 0xEBFCED,
-      0xEDE020, 0xEDE520, 0xEDE8E5, 0xEDE8FF, 0xEDEE20, 0xEDEEE2, 0xEE20E2, 0xEE20EF,
-      0xEE20F1, 0xEEE220, 0xEEE2E0, 0xEEE3EE, 0xEEE920, 0xEEEBFC, 0xEEEC20, 0xEEF1F2,
-      0xEFEEEB, 0xEFF0E5, 0xEFF0E8, 0xEFF0EE, 0xF0E0E2, 0xF0E5E4, 0xF1F2E0, 0xF1F2E2,
-      0xF1F2E8, 0xF1FF20, 0xF2E5EB, 0xF2EE20, 0xF2EEF0, 0xF2FC20, 0xF7F2EE, 0xFBF520
-    ];
-  };
-
-  this.name = function(det) {
-    return 'windows-1251';
-  };
-
-  this.language = function() {
-    return 'ru';
-  };
-};
-util.inherits(module.exports.windows_1251, sbcs);
-
-
-module.exports.windows_1256 = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x81, 0x20, 0x83, 0x20, 0x20, 0x20, 0x20,
-      0x88, 0x20, 0x8A, 0x20, 0x9C, 0x8D, 0x8E, 0x8F,
-      0x90, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x98, 0x20, 0x9A, 0x20, 0x9C, 0x20, 0x20, 0x9F,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0xAA, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0xB5, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
-      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0x20,
-      0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
-      0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
-      0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
-      0x20, 0x20, 0x20, 0x20, 0xF4, 0x20, 0x20, 0x20,
-      0x20, 0xF9, 0x20, 0xFB, 0xFC, 0x20, 0x20, 0xFF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20C7E1, 0x20C7E4, 0x20C8C7, 0x20DAE1, 0x20DDED, 0x20E1E1, 0x20E3E4, 0x20E6C7,
-      0xC720C7, 0xC7C120, 0xC7CA20, 0xC7D120, 0xC7E120, 0xC7E1C3, 0xC7E1C7, 0xC7E1C8,
-      0xC7E1CA, 0xC7E1CC, 0xC7E1CD, 0xC7E1CF, 0xC7E1D3, 0xC7E1DA, 0xC7E1DE, 0xC7E1E3,
-      0xC7E1E6, 0xC7E1ED, 0xC7E320, 0xC7E420, 0xC7E4CA, 0xC820C7, 0xC920C7, 0xC920DD,
-      0xC920E1, 0xC920E3, 0xC920E6, 0xCA20C7, 0xCF20C7, 0xCFC920, 0xD120C7, 0xD1C920,
-      0xD320C7, 0xDA20C7, 0xDAE1EC, 0xDDED20, 0xE120C7, 0xE1C920, 0xE1EC20, 0xE1ED20,
-      0xE320C7, 0xE3C720, 0xE3C920, 0xE3E420, 0xE420C7, 0xE520C7, 0xE5C720, 0xE6C7E1,
-      0xE6E420, 0xEC20C7, 0xED20C7, 0xED20E3, 0xED20E6, 0xEDC920, 0xEDD120, 0xEDE420
-    ];
-  };
-
-  this.name = function(det) {
-    return 'windows-1256';
-  };
-
-  this.language = function() {
-    return 'ar';
-  };
-};
-util.inherits(module.exports.windows_1256, sbcs);
-
-
-module.exports.KOI8_R = function() {
-  this.byteMap = function() {
-    return [
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
-      0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
-      0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
-      0x78, 0x79, 0x7A, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0xA3, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0xA3, 0x20, 0x20, 0x20, 0x20,
-      0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
-      0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
-      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
-      0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
-      0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
-      0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
-      0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
-      0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-      0x20C4CF, 0x20C920, 0x20CBC1, 0x20CBCF, 0x20CEC1, 0x20CEC5, 0x20CFC2, 0x20D0CF,
-      0x20D0D2, 0x20D2C1, 0x20D3CF, 0x20D3D4, 0x20D4CF, 0x20D720, 0x20D7CF, 0x20DAC1,
-      0x20DCD4, 0x20DED4, 0xC1CEC9, 0xC1D4D8, 0xC5CCD8, 0xC5CEC9, 0xC5D3D4, 0xC5D420,
-      0xC7CF20, 0xC920D0, 0xC9C520, 0xC9C920, 0xC9D120, 0xCCC5CE, 0xCCC920, 0xCCD8CE,
-      0xCEC120, 0xCEC520, 0xCEC9C5, 0xCEC9D1, 0xCECF20, 0xCECFD7, 0xCF20D0, 0xCF20D3,
-      0xCF20D7, 0xCFC7CF, 0xCFCA20, 0xCFCCD8, 0xCFCD20, 0xCFD3D4, 0xCFD720, 0xCFD7C1,
-      0xD0CFCC, 0xD0D2C5, 0xD0D2C9, 0xD0D2CF, 0xD2C1D7, 0xD2C5C4, 0xD3D120, 0xD3D4C1,
-      0xD3D4C9, 0xD3D4D7, 0xD4C5CC, 0xD4CF20, 0xD4CFD2, 0xD4D820, 0xD9C820, 0xDED4CF
-    ];
-  };
-
-  this.name = function(det) {
-    return 'KOI8-R';
-  };
-
-  this.language = function() {
-    return 'ru';
-  };
-};
-util.inherits(module.exports.KOI8_R, sbcs);
-
-
-/*
-module.exports.ISO_8859_7 = function() {
-  this.byteMap = function() {
-    return [
-
-    ];
-  };
-
-  this.ngrams = function() {
-    return [
-
-    ];
-  };
-
-  this.name = function(det) {
-    if (typeof det == 'undefined')
-      return 'ISO-8859-7';
-    return det.fC1Bytes ? 'windows-1253' : 'ISO-8859-7';
-  };
-
-  this.language = function() {
-    return 'el';
-  };
-};
-util.inherits(module.exports.ISO_8859_7, sbcs);
-*/
-
-
-
-/***/ }),
-/* 702 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var util = __webpack_require__(3),
-  Match = __webpack_require__ (142);
-
-/**
- * This class matches UTF-16 and UTF-32, both big- and little-endian. The
- * BOM will be used if it is present.
- */
-module.exports.UTF_16BE = function() {
-  this.name = function() {
-    return 'UTF-16BE';
-  };
-  this.match = function(det) {
-    var input = det.fRawInput;
-
-    if (input.length >= 2 && ((input[0] & 0xff) == 0xfe && (input[1] & 0xff) == 0xff)) {
-      return new Match(det, this, 100); // confidence = 100
-    }
-
-    // TODO: Do some statistics to check for unsigned UTF-16BE
-    return null;
-  };
-};
-
-module.exports.UTF_16LE = function() {
-  this.name = function() {
-    return 'UTF-16LE';
-  };
-  this.match = function(det) {
-    var input = det.fRawInput;
-
-    if (input.length >= 2 && ((input[0] & 0xff) == 0xff && (input[1] & 0xff) == 0xfe)) {
-      // LE BOM is present.
-      if (input.length >= 4 && input[2] == 0x00 && input[3] == 0x00) {
-        // It is probably UTF-32 LE, not UTF-16
-        return null;
-      }
-      return new Match(det, this, 100); // confidence = 100
-    }
-
-    // TODO: Do some statistics to check for unsigned UTF-16LE
-    return null;
-  }
-};
-
-function UTF_32() {};
-UTF_32.prototype.match = function(det) {
-  var input      = det.fRawInput,
-    limit      = (det.fRawLength / 4) * 4,
-    numValid   = 0,
-    numInvalid = 0,
-    hasBOM     = false,
-    confidence = 0;
-
-  if (limit == 0) {
-    return null;
-  }
-
-  if (this.getChar(input, 0) == 0x0000FEFF) {
-    hasBOM = true;
-  }
-
-  for (var i = 0; i < limit; i += 4) {
-    var ch = this.getChar(input, i);
-
-    if (ch < 0 || ch >= 0x10FFFF || (ch >= 0xD800 && ch <= 0xDFFF)) {
-      numInvalid += 1;
-    } else {
-      numValid += 1;
-    }
-  }
-
-  // Cook up some sort of confidence score, based on presence of a BOM
-  //    and the existence of valid and/or invalid multi-byte sequences.
-  if (hasBOM && numInvalid == 0) {
-    confidence = 100;
-  } else if (hasBOM && numValid > numInvalid * 10) {
-    confidence = 80;
-  } else if (numValid > 3 && numInvalid == 0) {
-    confidence = 100;
-  } else if (numValid > 0 && numInvalid == 0) {
-    confidence = 80;
-  } else if (numValid > numInvalid * 10) {
-    // Probably corrupt UTF-32BE data.  Valid sequences aren't likely by chance.
-    confidence = 25;
-  }
-
-  // return confidence == 0 ? null : new CharsetMatch(det, this, confidence);
-  return confidence == 0 ? null : new Match(det, this, confidence);
-};
-
-module.exports.UTF_32BE = function() {
-  this.name = function() {
-    return 'UTF-32BE';
-  };
-  this.getChar = function(input, index) {
-    return (input[index + 0] & 0xff) << 24 | (input[index + 1] & 0xff) << 16 |
-         (input[index + 2] & 0xff) <<  8 | (input[index + 3] & 0xff);
-  };
-};
-util.inherits(module.exports.UTF_32BE, UTF_32);
-
-module.exports.UTF_32LE = function() {
-  this.name = function() {
-    return 'UTF-32LE';
-  };
-  this.getChar = function(input, index) {
-    return (input[index + 3] & 0xff) << 24 | (input[index + 2] & 0xff) << 16 |
-         (input[index + 1] & 0xff) <<  8 | (input[index + 0] & 0xff);
-  };
-};
-util.inherits(module.exports.UTF_32LE, UTF_32);
-
-
-/***/ }),
-/* 703 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-var Match = __webpack_require__ (142);
-
-/**
- * Charset recognizer for UTF-8
- */
-module.exports = function() {
-  this.name = function() {
-    return 'UTF-8';
-  };
-  this.match = function(det) {
-
-    var hasBOM = false,
-      numValid = 0,
-      numInvalid = 0,
-      input = det.fRawInput,
-      trailBytes = 0,
-      confidence;
-
-    if (det.fRawLength >= 3 &&
-      (input[0] & 0xff) == 0xef && (input[1] & 0xff) == 0xbb && (input[2] & 0xff) == 0xbf) {
-      hasBOM = true;
-    }
-
-    // Scan for multi-byte sequences
-    for (var i = 0; i < det.fRawLength; i++) {
-      var b = input[i];
-      if ((b & 0x80) == 0)
-        continue; // ASCII
-
-      // Hi bit on char found.  Figure out how long the sequence should be
-      if ((b & 0x0e0) == 0x0c0) {
-        trailBytes = 1;
-      } else if ((b & 0x0f0) == 0x0e0) {
-        trailBytes = 2;
-      } else if ((b & 0x0f8) == 0xf0) {
-        trailBytes = 3;
-      } else {
-        numInvalid++;
-        if (numInvalid > 5)
-          break;
-        trailBytes = 0;
-      }
-
-      // Verify that we've got the right number of trail bytes in the sequence
-      for (;;) {
-        i++;
-        if (i >= det.fRawLength)
-          break;
-
-        if ((input[i] & 0xc0) != 0x080) {
-          numInvalid++;
-          break;
-        }
-        if (--trailBytes == 0) {
-          numValid++;
-          break;
-        }
-      }
-    }
-
-    // Cook up some sort of confidence score, based on presense of a BOM
-    //    and the existence of valid and/or invalid multi-byte sequences.
-    confidence = 0;
-    if (hasBOM && numInvalid == 0)
-      confidence = 100;
-    else if (hasBOM && numValid > numInvalid * 10)
-      confidence = 80;
-    else if (numValid > 3 && numInvalid == 0)
-      confidence = 100;
-    else if (numValid > 0 && numInvalid == 0)
-      confidence = 80;
-    else if (numValid == 0 && numInvalid == 0)
-      // Plain ASCII.
-      confidence = 10;
-    else if (numValid > numInvalid * 10)
-      // Probably corruput utf-8 data.  Valid sequences aren't likely by chance.
-      confidence = 25;
-    else
-      return null
-
-    return new Match(det, this, confidence);
-  };
-};
-
-
-/***/ }),
-/* 704 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-var fs = __webpack_require__(5);
-
-var utf8  = __webpack_require__(703),
-  unicode = __webpack_require__(702),
-  mbcs    = __webpack_require__(700),
-  sbcs    = __webpack_require__(701),
-  iso2022 = __webpack_require__(699);
-
-var self = this;
-
-var recognisers = [
-  new utf8,
-  new unicode.UTF_16BE,
-  new unicode.UTF_16LE,
-  new unicode.UTF_32BE,
-  new unicode.UTF_32LE,
-  new mbcs.sjis,
-  new mbcs.big5,
-  new mbcs.euc_jp,
-  new mbcs.euc_kr,
-  new mbcs.gb_18030,
-  new iso2022.ISO_2022_JP,
-  new iso2022.ISO_2022_KR,
-  new iso2022.ISO_2022_CN,
-  new sbcs.ISO_8859_1,
-  new sbcs.ISO_8859_2,
-  new sbcs.ISO_8859_5,
-  new sbcs.ISO_8859_6,
-  new sbcs.ISO_8859_7,
-  new sbcs.ISO_8859_8,
-  new sbcs.ISO_8859_9,
-  new sbcs.windows_1251,
-  new sbcs.windows_1256,
-  new sbcs.KOI8_R
-];
-
-module.exports.detect = function(buffer, opts) {
-
-  // Tally up the byte occurence statistics.
-  var fByteStats = [];
-  for (var i = 0; i < 256; i++)
-    fByteStats[i] = 0;
-
-  for (var i = buffer.length - 1; i >= 0; i--)
-    fByteStats[buffer[i] & 0x00ff]++;
-
-  var fC1Bytes = false;
-  for (var i = 0x80; i <= 0x9F; i += 1) {
-    if (fByteStats[i] != 0) {
-      fC1Bytes = true;
-      break;
-    }
-  }
-
-  var context = {
-    fByteStats:  fByteStats,
-    fC1Bytes:    fC1Bytes,
-    fRawInput:   buffer,
-    fRawLength:  buffer.length,
-    fInputBytes: buffer,
-    fInputLen:   buffer.length
-  };
-
-  var matches = recognisers.map(function(rec) {
-    return rec.match(context);
-  }).filter(function(match) {
-    return !!match;
-  }).sort(function(a, b) {
-    return b.confidence - a.confidence;
-  });
-
-  if (opts && opts.returnAllMatches === true) {
-    return matches;
-  }
-  else {
-    return matches.length > 0 ? matches[0].name : null;
-  }
-};
-
-module.exports.detectFile = function(filepath, opts, cb) {
-  if (typeof opts === 'function') {
-    cb = opts;
-    opts = undefined;
-  }
-
-  var fd;
-
-  var handler = function(err, buffer) {
-    if (fd) {
-      fs.closeSync(fd);
-    }
-
-    if (err) return cb(err, null);
-    cb(null, self.detect(buffer, opts));
-  };
-
-  if (opts && opts.sampleSize) {
-    fd = fs.openSync(filepath, 'r'),
-      sample = Buffer.allocUnsafe(opts.sampleSize);
-
-    fs.read(fd, sample, 0, opts.sampleSize, null, function(err) {
-      handler(err, sample);
-    });
-    return;
-  }
-
-  fs.readFile(filepath, handler);
-};
-
-module.exports.detectFileSync = function(filepath, opts) {
-  if (opts && opts.sampleSize) {
-    var fd = fs.openSync(filepath, 'r'),
-      sample = Buffer.allocUnsafe(opts.sampleSize);
-
-    fs.readSync(fd, sample, 0, opts.sampleSize);
-    fs.closeSync(fd);
-    return self.detect(sample, opts);
-  }
-
-  return self.detect(fs.readFileSync(filepath), opts);
-};
-
-// Wrappers for the previous functions to return all encodings
-module.exports.detectAll = function(buffer, opts) {
-  if (typeof opts !== 'object') {
-    opts = {};
-  }
-  opts.returnAllMatches = true;
-  return self.detect(buffer, opts);
-}
-
-module.exports.detectFileAll = function(filepath, opts, cb) {
-  if (typeof opts === 'function') {
-    cb = opts;
-    opts = undefined;
-  }
-  if (typeof opts !== 'object') {
-    opts = {};
-  }
-  opts.returnAllMatches = true;
-  self.detectFile(filepath, opts, cb);
-}
-
-module.exports.detectFileAllSync = function(filepath, opts) {
-  if (typeof opts !== 'object') {
-    opts = {};
-  }
-  opts.returnAllMatches = true;
-  return self.detectFileSync(filepath, opts);
-}
-
-
-/***/ }),
-/* 705 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/***
- * Node External Editor
- *
- * Kevin Gravier <kevin@mrkmg.com>
- * MIT 2018
- */
-var __extends = (this && this.__extends) || (function () {
-    var extendStatics = function (d, b) {
-        extendStatics = Object.setPrototypeOf ||
-            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-        return extendStatics(d, b);
-    }
-    return function (d, b) {
-        extendStatics(d, b);
-        function __() { this.constructor = d; }
-        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-    };
-})();
-Object.defineProperty(exports, "__esModule", { value: true });
-var CreateFileError = /** @class */ (function (_super) {
-    __extends(CreateFileError, _super);
-    function CreateFileError(originalError) {
-        var _newTarget = this.constructor;
-        var _this = _super.call(this, "Failed to create temporary file for editor") || this;
-        _this.originalError = originalError;
-        var proto = _newTarget.prototype;
-        if (Object.setPrototypeOf) {
-            Object.setPrototypeOf(_this, proto);
-        }
-        else {
-            _this.__proto__ = _newTarget.prototype;
-        }
-        return _this;
-    }
-    return CreateFileError;
-}(Error));
-exports.CreateFileError = CreateFileError;
-
-
-/***/ }),
-/* 706 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/***
- * Node External Editor
- *
- * Kevin Gravier <kevin@mrkmg.com>
- * MIT 2018
- */
-var __extends = (this && this.__extends) || (function () {
-    var extendStatics = function (d, b) {
-        extendStatics = Object.setPrototypeOf ||
-            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-        return extendStatics(d, b);
-    }
-    return function (d, b) {
-        extendStatics(d, b);
-        function __() { this.constructor = d; }
-        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-    };
-})();
-Object.defineProperty(exports, "__esModule", { value: true });
-var LaunchEditorError = /** @class */ (function (_super) {
-    __extends(LaunchEditorError, _super);
-    function LaunchEditorError(originalError) {
-        var _newTarget = this.constructor;
-        var _this = _super.call(this, "Failed launch editor") || this;
-        _this.originalError = originalError;
-        var proto = _newTarget.prototype;
-        if (Object.setPrototypeOf) {
-            Object.setPrototypeOf(_this, proto);
-        }
-        else {
-            _this.__proto__ = _newTarget.prototype;
-        }
-        return _this;
-    }
-    return LaunchEditorError;
-}(Error));
-exports.LaunchEditorError = LaunchEditorError;
-
-
-/***/ }),
-/* 707 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/***
- * Node External Editor
- *
- * Kevin Gravier <kevin@mrkmg.com>
- * MIT 2018
- */
-var __extends = (this && this.__extends) || (function () {
-    var extendStatics = function (d, b) {
-        extendStatics = Object.setPrototypeOf ||
-            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-        return extendStatics(d, b);
-    }
-    return function (d, b) {
-        extendStatics(d, b);
-        function __() { this.constructor = d; }
-        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-    };
-})();
-Object.defineProperty(exports, "__esModule", { value: true });
-var ReadFileError = /** @class */ (function (_super) {
-    __extends(ReadFileError, _super);
-    function ReadFileError(originalError) {
-        var _newTarget = this.constructor;
-        var _this = _super.call(this, "Failed to read temporary file") || this;
-        _this.originalError = originalError;
-        var proto = _newTarget.prototype;
-        if (Object.setPrototypeOf) {
-            Object.setPrototypeOf(_this, proto);
-        }
-        else {
-            _this.__proto__ = _newTarget.prototype;
-        }
-        return _this;
-    }
-    return ReadFileError;
-}(Error));
-exports.ReadFileError = ReadFileError;
-
-
-/***/ }),
-/* 708 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/***
- * Node External Editor
- *
- * Kevin Gravier <kevin@mrkmg.com>
- * MIT 2018
- */
-var __extends = (this && this.__extends) || (function () {
-    var extendStatics = function (d, b) {
-        extendStatics = Object.setPrototypeOf ||
-            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
-            function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
-        return extendStatics(d, b);
-    }
-    return function (d, b) {
-        extendStatics(d, b);
-        function __() { this.constructor = d; }
-        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
-    };
-})();
-Object.defineProperty(exports, "__esModule", { value: true });
-var RemoveFileError = /** @class */ (function (_super) {
-    __extends(RemoveFileError, _super);
-    function RemoveFileError(originalError) {
-        var _newTarget = this.constructor;
-        var _this = _super.call(this, "Failed to cleanup temporary file") || this;
-        _this.originalError = originalError;
-        var proto = _newTarget.prototype;
-        if (Object.setPrototypeOf) {
-            Object.setPrototypeOf(_this, proto);
-        }
-        else {
-            _this.__proto__ = _newTarget.prototype;
-        }
-        return _this;
-    }
-    return RemoveFileError;
-}(Error));
-exports.RemoveFileError = RemoveFileError;
-
-
-/***/ }),
-/* 709 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/***
- * Node External Editor
- *
- * Kevin Gravier <kevin@mrkmg.com>
- * MIT 2018
- */
-Object.defineProperty(exports, "__esModule", { value: true });
-var chardet_1 = __webpack_require__(704);
-var child_process_1 = __webpack_require__(331);
-var fs_1 = __webpack_require__(5);
-var iconv_lite_1 = __webpack_require__(726);
-var tmp_1 = __webpack_require__(954);
-var CreateFileError_1 = __webpack_require__(705);
-exports.CreateFileError = CreateFileError_1.CreateFileError;
-var LaunchEditorError_1 = __webpack_require__(706);
-exports.LaunchEditorError = LaunchEditorError_1.LaunchEditorError;
-var ReadFileError_1 = __webpack_require__(707);
-exports.ReadFileError = ReadFileError_1.ReadFileError;
-var RemoveFileError_1 = __webpack_require__(708);
-exports.RemoveFileError = RemoveFileError_1.RemoveFileError;
-function edit(text) {
-    if (text === void 0) { text = ""; }
-    var editor = new ExternalEditor(text);
-    editor.run();
-    editor.cleanup();
-    return editor.text;
-}
-exports.edit = edit;
-function editAsync(text, callback) {
-    if (text === void 0) { text = ""; }
-    var editor = new ExternalEditor(text);
-    editor.runAsync(function (err, result) {
-        if (err) {
-            setImmediate(callback, err, null);
-        }
-        else {
-            try {
-                editor.cleanup();
-                setImmediate(callback, null, result);
-            }
-            catch (cleanupError) {
-                setImmediate(callback, cleanupError, null);
-            }
-        }
-    });
-}
-exports.editAsync = editAsync;
-var ExternalEditor = /** @class */ (function () {
-    function ExternalEditor(text) {
-        if (text === void 0) { text = ""; }
-        this.text = "";
-        this.text = text;
-        this.determineEditor();
-        this.createTemporaryFile();
-    }
-    ExternalEditor.splitStringBySpace = function (str) {
-        var pieces = [];
-        var currentString = "";
-        for (var strIndex = 0; strIndex < str.length; strIndex++) {
-            var currentLetter = str[strIndex];
-            if (strIndex > 0 && currentLetter === " " && str[strIndex - 1] !== "\\" && currentString.length > 0) {
-                pieces.push(currentString);
-                currentString = "";
-            }
-            else {
-                currentString += currentLetter;
-            }
-        }
-        if (currentString.length > 0) {
-            pieces.push(currentString);
-        }
-        return pieces;
-    };
-    Object.defineProperty(ExternalEditor.prototype, "temp_file", {
-        get: function () {
-            console.log("DEPRECATED: temp_file. Use tempFile moving forward.");
-            return this.tempFile;
-        },
-        enumerable: true,
-        configurable: true
-    });
-    Object.defineProperty(ExternalEditor.prototype, "last_exit_status", {
-        get: function () {
-            console.log("DEPRECATED: last_exit_status. Use lastExitStatus moving forward.");
-            return this.lastExitStatus;
-        },
-        enumerable: true,
-        configurable: true
-    });
-    ExternalEditor.prototype.run = function () {
-        this.launchEditor();
-        this.readTemporaryFile();
-        return this.text;
-    };
-    ExternalEditor.prototype.runAsync = function (callback) {
-        var _this = this;
-        try {
-            this.launchEditorAsync(function () {
-                try {
-                    _this.readTemporaryFile();
-                    setImmediate(callback, null, _this.text);
-                }
-                catch (readError) {
-                    setImmediate(callback, readError, null);
-                }
-            });
-        }
-        catch (launchError) {
-            setImmediate(callback, launchError, null);
-        }
-    };
-    ExternalEditor.prototype.cleanup = function () {
-        this.removeTemporaryFile();
-    };
-    ExternalEditor.prototype.determineEditor = function () {
-        var editor = process.env.VISUAL ? process.env.VISUAL :
-            process.env.EDITOR ? process.env.EDITOR :
-                /^win/.test(process.platform) ? "notepad" :
-                    "vim";
-        var editorOpts = ExternalEditor.splitStringBySpace(editor).map(function (piece) { return piece.replace("\\ ", " "); });
-        var bin = editorOpts.shift();
-        this.editor = { args: editorOpts, bin: bin };
-    };
-    ExternalEditor.prototype.createTemporaryFile = function () {
-        try {
-            this.tempFile = tmp_1.tmpNameSync({});
-            fs_1.writeFileSync(this.tempFile, this.text, { encoding: "utf8" });
-        }
-        catch (createFileError) {
-            throw new CreateFileError_1.CreateFileError(createFileError);
-        }
-    };
-    ExternalEditor.prototype.readTemporaryFile = function () {
-        try {
-            var tempFileBuffer = fs_1.readFileSync(this.tempFile);
-            if (tempFileBuffer.length === 0) {
-                this.text = "";
-            }
-            else {
-                var encoding = chardet_1.detect(tempFileBuffer).toString();
-                if (!iconv_lite_1.encodingExists(encoding)) {
-                    // Probably a bad idea, but will at least prevent crashing
-                    encoding = "utf8";
-                }
-                this.text = iconv_lite_1.decode(tempFileBuffer, encoding);
-            }
-        }
-        catch (readFileError) {
-            throw new ReadFileError_1.ReadFileError(readFileError);
-        }
-    };
-    ExternalEditor.prototype.removeTemporaryFile = function () {
-        try {
-            fs_1.unlinkSync(this.tempFile);
-        }
-        catch (removeFileError) {
-            throw new RemoveFileError_1.RemoveFileError(removeFileError);
-        }
-    };
-    ExternalEditor.prototype.launchEditor = function () {
-        try {
-            var editorProcess = child_process_1.spawnSync(this.editor.bin, this.editor.args.concat([this.tempFile]), { stdio: "inherit" });
-            this.lastExitStatus = editorProcess.status;
-        }
-        catch (launchError) {
-            throw new LaunchEditorError_1.LaunchEditorError(launchError);
-        }
-    };
-    ExternalEditor.prototype.launchEditorAsync = function (callback) {
-        var _this = this;
-        try {
-            var editorProcess = child_process_1.spawn(this.editor.bin, this.editor.args.concat([this.tempFile]), { stdio: "inherit" });
-            editorProcess.on("exit", function (code) {
-                _this.lastExitStatus = code;
-                setImmediate(callback);
-            });
-        }
-        catch (launchError) {
-            throw new LaunchEditorError_1.LaunchEditorError(launchError);
-        }
-    };
-    return ExternalEditor;
-}());
-exports.ExternalEditor = ExternalEditor;
-
-
-/***/ }),
-/* 710 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var Buffer = __webpack_require__(15).Buffer;
-
-// Multibyte codec. In this scheme, a character is represented by 1 or more bytes.
-// Our codec supports UTF-16 surrogates, extensions for GB18030 and unicode sequences.
-// To save memory and loading time, we read table files only when requested.
-
-exports._dbcs = DBCSCodec;
-
-var UNASSIGNED = -1,
-    GB18030_CODE = -2,
-    SEQ_START  = -10,
-    NODE_START = -1000,
-    UNASSIGNED_NODE = new Array(0x100),
-    DEF_CHAR = -1;
-
-for (var i = 0; i < 0x100; i++)
-    UNASSIGNED_NODE[i] = UNASSIGNED;
-
-
-// Class DBCSCodec reads and initializes mapping tables.
-function DBCSCodec(codecOptions, iconv) {
-    this.encodingName = codecOptions.encodingName;
-    if (!codecOptions)
-        throw new Error("DBCS codec is called without the data.")
-    if (!codecOptions.table)
-        throw new Error("Encoding '" + this.encodingName + "' has no data.");
-
-    // Load tables.
-    var mappingTable = codecOptions.table();
-
-
-    // Decode tables: MBCS -> Unicode.
-
-    // decodeTables is a trie, encoded as an array of arrays of integers. Internal arrays are trie nodes and all have len = 256.
-    // Trie root is decodeTables[0].
-    // Values: >=  0 -> unicode character code. can be > 0xFFFF
-    //         == UNASSIGNED -> unknown/unassigned sequence.
-    //         == GB18030_CODE -> this is the end of a GB18030 4-byte sequence.
-    //         <= NODE_START -> index of the next node in our trie to process next byte.
-    //         <= SEQ_START  -> index of the start of a character code sequence, in decodeTableSeq.
-    this.decodeTables = [];
-    this.decodeTables[0] = UNASSIGNED_NODE.slice(0); // Create root node.
-
-    // Sometimes a MBCS char corresponds to a sequence of unicode chars. We store them as arrays of integers here. 
-    this.decodeTableSeq = [];
-
-    // Actual mapping tables consist of chunks. Use them to fill up decode tables.
-    for (var i = 0; i < mappingTable.length; i++)
-        this._addDecodeChunk(mappingTable[i]);
-
-    this.defaultCharUnicode = iconv.defaultCharUnicode;
-
-    
-    // Encode tables: Unicode -> DBCS.
-
-    // `encodeTable` is array mapping from unicode char to encoded char. All its values are integers for performance.
-    // Because it can be sparse, it is represented as array of buckets by 256 chars each. Bucket can be null.
-    // Values: >=  0 -> it is a normal char. Write the value (if <=256 then 1 byte, if <=65536 then 2 bytes, etc.).
-    //         == UNASSIGNED -> no conversion found. Output a default char.
-    //         <= SEQ_START  -> it's an index in encodeTableSeq, see below. The character starts a sequence.
-    this.encodeTable = [];
-    
-    // `encodeTableSeq` is used when a sequence of unicode characters is encoded as a single code. We use a tree of
-    // objects where keys correspond to characters in sequence and leafs are the encoded dbcs values. A special DEF_CHAR key
-    // means end of sequence (needed when one sequence is a strict subsequence of another).
-    // Objects are kept separately from encodeTable to increase performance.
-    this.encodeTableSeq = [];
-
-    // Some chars can be decoded, but need not be encoded.
-    var skipEncodeChars = {};
-    if (codecOptions.encodeSkipVals)
-        for (var i = 0; i < codecOptions.encodeSkipVals.length; i++) {
-            var val = codecOptions.encodeSkipVals[i];
-            if (typeof val === 'number')
-                skipEncodeChars[val] = true;
-            else
-                for (var j = val.from; j <= val.to; j++)
-                    skipEncodeChars[j] = true;
-        }
-        
-    // Use decode trie to recursively fill out encode tables.
-    this._fillEncodeTable(0, 0, skipEncodeChars);
-
-    // Add more encoding pairs when needed.
-    if (codecOptions.encodeAdd) {
-        for (var uChar in codecOptions.encodeAdd)
-            if (Object.prototype.hasOwnProperty.call(codecOptions.encodeAdd, uChar))
-                this._setEncodeChar(uChar.charCodeAt(0), codecOptions.encodeAdd[uChar]);
-    }
-
-    this.defCharSB  = this.encodeTable[0][iconv.defaultCharSingleByte.charCodeAt(0)];
-    if (this.defCharSB === UNASSIGNED) this.defCharSB = this.encodeTable[0]['?'];
-    if (this.defCharSB === UNASSIGNED) this.defCharSB = "?".charCodeAt(0);
-
-
-    // Load & create GB18030 tables when needed.
-    if (typeof codecOptions.gb18030 === 'function') {
-        this.gb18030 = codecOptions.gb18030(); // Load GB18030 ranges.
-
-        // Add GB18030 decode tables.
-        var thirdByteNodeIdx = this.decodeTables.length;
-        var thirdByteNode = this.decodeTables[thirdByteNodeIdx] = UNASSIGNED_NODE.slice(0);
-
-        var fourthByteNodeIdx = this.decodeTables.length;
-        var fourthByteNode = this.decodeTables[fourthByteNodeIdx] = UNASSIGNED_NODE.slice(0);
-
-        for (var i = 0x81; i <= 0xFE; i++) {
-            var secondByteNodeIdx = NODE_START - this.decodeTables[0][i];
-            var secondByteNode = this.decodeTables[secondByteNodeIdx];
-            for (var j = 0x30; j <= 0x39; j++)
-                secondByteNode[j] = NODE_START - thirdByteNodeIdx;
-        }
-        for (var i = 0x81; i <= 0xFE; i++)
-            thirdByteNode[i] = NODE_START - fourthByteNodeIdx;
-        for (var i = 0x30; i <= 0x39; i++)
-            fourthByteNode[i] = GB18030_CODE
-    }        
-}
-
-DBCSCodec.prototype.encoder = DBCSEncoder;
-DBCSCodec.prototype.decoder = DBCSDecoder;
-
-// Decoder helpers
-DBCSCodec.prototype._getDecodeTrieNode = function(addr) {
-    var bytes = [];
-    for (; addr > 0; addr >>= 8)
-        bytes.push(addr & 0xFF);
-    if (bytes.length == 0)
-        bytes.push(0);
-
-    var node = this.decodeTables[0];
-    for (var i = bytes.length-1; i > 0; i--) { // Traverse nodes deeper into the trie.
-        var val = node[bytes[i]];
-
-        if (val == UNASSIGNED) { // Create new node.
-            node[bytes[i]] = NODE_START - this.decodeTables.length;
-            this.decodeTables.push(node = UNASSIGNED_NODE.slice(0));
-        }
-        else if (val <= NODE_START) { // Existing node.
-            node = this.decodeTables[NODE_START - val];
-        }
-        else
-            throw new Error("Overwrite byte in " + this.encodingName + ", addr: " + addr.toString(16));
-    }
-    return node;
-}
-
-
-DBCSCodec.prototype._addDecodeChunk = function(chunk) {
-    // First element of chunk is the hex mbcs code where we start.
-    var curAddr = parseInt(chunk[0], 16);
-
-    // Choose the decoding node where we'll write our chars.
-    var writeTable = this._getDecodeTrieNode(curAddr);
-    curAddr = curAddr & 0xFF;
-
-    // Write all other elements of the chunk to the table.
-    for (var k = 1; k < chunk.length; k++) {
-        var part = chunk[k];
-        if (typeof part === "string") { // String, write as-is.
-            for (var l = 0; l < part.length;) {
-                var code = part.charCodeAt(l++);
-                if (0xD800 <= code && code < 0xDC00) { // Decode surrogate
-                    var codeTrail = part.charCodeAt(l++);
-                    if (0xDC00 <= codeTrail && codeTrail < 0xE000)
-                        writeTable[curAddr++] = 0x10000 + (code - 0xD800) * 0x400 + (codeTrail - 0xDC00);
-                    else
-                        throw new Error("Incorrect surrogate pair in "  + this.encodingName + " at chunk " + chunk[0]);
-                }
-                else if (0x0FF0 < code && code <= 0x0FFF) { // Character sequence (our own encoding used)
-                    var len = 0xFFF - code + 2;
-                    var seq = [];
-                    for (var m = 0; m < len; m++)
-                        seq.push(part.charCodeAt(l++)); // Simple variation: don't support surrogates or subsequences in seq.
-
-                    writeTable[curAddr++] = SEQ_START - this.decodeTableSeq.length;
-                    this.decodeTableSeq.push(seq);
-                }
-                else
-                    writeTable[curAddr++] = code; // Basic char
-            }
-        } 
-        else if (typeof part === "number") { // Integer, meaning increasing sequence starting with prev character.
-            var charCode = writeTable[curAddr - 1] + 1;
-            for (var l = 0; l < part; l++)
-                writeTable[curAddr++] = charCode++;
-        }
-        else
-            throw new Error("Incorrect type '" + typeof part + "' given in "  + this.encodingName + " at chunk " + chunk[0]);
-    }
-    if (curAddr > 0xFF)
-        throw new Error("Incorrect chunk in "  + this.encodingName + " at addr " + chunk[0] + ": too long" + curAddr);
-}
-
-// Encoder helpers
-DBCSCodec.prototype._getEncodeBucket = function(uCode) {
-    var high = uCode >> 8; // This could be > 0xFF because of astral characters.
-    if (this.encodeTable[high] === undefined)
-        this.encodeTable[high] = UNASSIGNED_NODE.slice(0); // Create bucket on demand.
-    return this.encodeTable[high];
-}
-
-DBCSCodec.prototype._setEncodeChar = function(uCode, dbcsCode) {
-    var bucket = this._getEncodeBucket(uCode);
-    var low = uCode & 0xFF;
-    if (bucket[low] <= SEQ_START)
-        this.encodeTableSeq[SEQ_START-bucket[low]][DEF_CHAR] = dbcsCode; // There's already a sequence, set a single-char subsequence of it.
-    else if (bucket[low] == UNASSIGNED)
-        bucket[low] = dbcsCode;
-}
-
-DBCSCodec.prototype._setEncodeSequence = function(seq, dbcsCode) {
-    
-    // Get the root of character tree according to first character of the sequence.
-    var uCode = seq[0];
-    var bucket = this._getEncodeBucket(uCode);
-    var low = uCode & 0xFF;
-
-    var node;
-    if (bucket[low] <= SEQ_START) {
-        // There's already a sequence with  - use it.
-        node = this.encodeTableSeq[SEQ_START-bucket[low]];
-    }
-    else {
-        // There was no sequence object - allocate a new one.
-        node = {};
-        if (bucket[low] !== UNASSIGNED) node[DEF_CHAR] = bucket[low]; // If a char was set before - make it a single-char subsequence.
-        bucket[low] = SEQ_START - this.encodeTableSeq.length;
-        this.encodeTableSeq.push(node);
-    }
-
-    // Traverse the character tree, allocating new nodes as needed.
-    for (var j = 1; j < seq.length-1; j++) {
-        var oldVal = node[uCode];
-        if (typeof oldVal === 'object')
-            node = oldVal;
-        else {
-            node = node[uCode] = {}
-            if (oldVal !== undefined)
-                node[DEF_CHAR] = oldVal
-        }
-    }
-
-    // Set the leaf to given dbcsCode.
-    uCode = seq[seq.length-1];
-    node[uCode] = dbcsCode;
-}
-
-DBCSCodec.prototype._fillEncodeTable = function(nodeIdx, prefix, skipEncodeChars) {
-    var node = this.decodeTables[nodeIdx];
-    for (var i = 0; i < 0x100; i++) {
-        var uCode = node[i];
-        var mbCode = prefix + i;
-        if (skipEncodeChars[mbCode])
-            continue;
-
-        if (uCode >= 0)
-            this._setEncodeChar(uCode, mbCode);
-        else if (uCode <= NODE_START)
-            this._fillEncodeTable(NODE_START - uCode, mbCode << 8, skipEncodeChars);
-        else if (uCode <= SEQ_START)
-            this._setEncodeSequence(this.decodeTableSeq[SEQ_START - uCode], mbCode);
-    }
-}
-
-
-
-// == Encoder ==================================================================
-
-function DBCSEncoder(options, codec) {
-    // Encoder state
-    this.leadSurrogate = -1;
-    this.seqObj = undefined;
-    
-    // Static data
-    this.encodeTable = codec.encodeTable;
-    this.encodeTableSeq = codec.encodeTableSeq;
-    this.defaultCharSingleByte = codec.defCharSB;
-    this.gb18030 = codec.gb18030;
-}
-
-DBCSEncoder.prototype.write = function(str) {
-    var newBuf = Buffer.alloc(str.length * (this.gb18030 ? 4 : 3)),
-        leadSurrogate = this.leadSurrogate,
-        seqObj = this.seqObj, nextChar = -1,
-        i = 0, j = 0;
-
-    while (true) {
-        // 0. Get next character.
-        if (nextChar === -1) {
-            if (i == str.length) break;
-            var uCode = str.charCodeAt(i++);
-        }
-        else {
-            var uCode = nextChar;
-            nextChar = -1;    
-        }
-
-        // 1. Handle surrogates.
-        if (0xD800 <= uCode && uCode < 0xE000) { // Char is one of surrogates.
-            if (uCode < 0xDC00) { // We've got lead surrogate.
-                if (leadSurrogate === -1) {
-                    leadSurrogate = uCode;
-                    continue;
-                } else {
-                    leadSurrogate = uCode;
-                    // Double lead surrogate found.
-                    uCode = UNASSIGNED;
-                }
-            } else { // We've got trail surrogate.
-                if (leadSurrogate !== -1) {
-                    uCode = 0x10000 + (leadSurrogate - 0xD800) * 0x400 + (uCode - 0xDC00);
-                    leadSurrogate = -1;
-                } else {
-                    // Incomplete surrogate pair - only trail surrogate found.
-                    uCode = UNASSIGNED;
-                }
-                
-            }
-        }
-        else if (leadSurrogate !== -1) {
-            // Incomplete surrogate pair - only lead surrogate found.
-            nextChar = uCode; uCode = UNASSIGNED; // Write an error, then current char.
-            leadSurrogate = -1;
-        }
-
-        // 2. Convert uCode character.
-        var dbcsCode = UNASSIGNED;
-        if (seqObj !== undefined && uCode != UNASSIGNED) { // We are in the middle of the sequence
-            var resCode = seqObj[uCode];
-            if (typeof resCode === 'object') { // Sequence continues.
-                seqObj = resCode;
-                continue;
-
-            } else if (typeof resCode == 'number') { // Sequence finished. Write it.
-                dbcsCode = resCode;
-
-            } else if (resCode == undefined) { // Current character is not part of the sequence.
-
-                // Try default character for this sequence
-                resCode = seqObj[DEF_CHAR];
-                if (resCode !== undefined) {
-                    dbcsCode = resCode; // Found. Write it.
-                    nextChar = uCode; // Current character will be written too in the next iteration.
-
-                } else {
-                    // TODO: What if we have no default? (resCode == undefined)
-                    // Then, we should write first char of the sequence as-is and try the rest recursively.
-                    // Didn't do it for now because no encoding has this situation yet.
-                    // Currently, just skip the sequence and write current char.
-                }
-            }
-            seqObj = undefined;
-        }
-        else if (uCode >= 0) {  // Regular character
-            var subtable = this.encodeTable[uCode >> 8];
-            if (subtable !== undefined)
-                dbcsCode = subtable[uCode & 0xFF];
-            
-            if (dbcsCode <= SEQ_START) { // Sequence start
-                seqObj = this.encodeTableSeq[SEQ_START-dbcsCode];
-                continue;
-            }
-
-            if (dbcsCode == UNASSIGNED && this.gb18030) {
-                // Use GB18030 algorithm to find character(s) to write.
-                var idx = findIdx(this.gb18030.uChars, uCode);
-                if (idx != -1) {
-                    var dbcsCode = this.gb18030.gbChars[idx] + (uCode - this.gb18030.uChars[idx]);
-                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 12600); dbcsCode = dbcsCode % 12600;
-                    newBuf[j++] = 0x30 + Math.floor(dbcsCode / 1260); dbcsCode = dbcsCode % 1260;
-                    newBuf[j++] = 0x81 + Math.floor(dbcsCode / 10); dbcsCode = dbcsCode % 10;
-                    newBuf[j++] = 0x30 + dbcsCode;
-                    continue;
-                }
-            }
-        }
-
-        // 3. Write dbcsCode character.
-        if (dbcsCode === UNASSIGNED)
-            dbcsCode = this.defaultCharSingleByte;
-        
-        if (dbcsCode < 0x100) {
-            newBuf[j++] = dbcsCode;
-        }
-        else if (dbcsCode < 0x10000) {
-            newBuf[j++] = dbcsCode >> 8;   // high byte
-            newBuf[j++] = dbcsCode & 0xFF; // low byte
-        }
-        else {
-            newBuf[j++] = dbcsCode >> 16;
-            newBuf[j++] = (dbcsCode >> 8) & 0xFF;
-            newBuf[j++] = dbcsCode & 0xFF;
-        }
-    }
-
-    this.seqObj = seqObj;
-    this.leadSurrogate = leadSurrogate;
-    return newBuf.slice(0, j);
-}
-
-DBCSEncoder.prototype.end = function() {
-    if (this.leadSurrogate === -1 && this.seqObj === undefined)
-        return; // All clean. Most often case.
-
-    var newBuf = Buffer.alloc(10), j = 0;
-
-    if (this.seqObj) { // We're in the sequence.
-        var dbcsCode = this.seqObj[DEF_CHAR];
-        if (dbcsCode !== undefined) { // Write beginning of the sequence.
-            if (dbcsCode < 0x100) {
-                newBuf[j++] = dbcsCode;
-            }
-            else {
-                newBuf[j++] = dbcsCode >> 8;   // high byte
-                newBuf[j++] = dbcsCode & 0xFF; // low byte
-            }
-        } else {
-            // See todo above.
-        }
-        this.seqObj = undefined;
-    }
-
-    if (this.leadSurrogate !== -1) {
-        // Incomplete surrogate pair - only lead surrogate found.
-        newBuf[j++] = this.defaultCharSingleByte;
-        this.leadSurrogate = -1;
-    }
-    
-    return newBuf.slice(0, j);
-}
-
-// Export for testing
-DBCSEncoder.prototype.findIdx = findIdx;
-
-
-// == Decoder ==================================================================
-
-function DBCSDecoder(options, codec) {
-    // Decoder state
-    this.nodeIdx = 0;
-    this.prevBuf = Buffer.alloc(0);
-
-    // Static data
-    this.decodeTables = codec.decodeTables;
-    this.decodeTableSeq = codec.decodeTableSeq;
-    this.defaultCharUnicode = codec.defaultCharUnicode;
-    this.gb18030 = codec.gb18030;
-}
-
-DBCSDecoder.prototype.write = function(buf) {
-    var newBuf = Buffer.alloc(buf.length*2),
-        nodeIdx = this.nodeIdx, 
-        prevBuf = this.prevBuf, prevBufOffset = this.prevBuf.length,
-        seqStart = -this.prevBuf.length, // idx of the start of current parsed sequence.
-        uCode;
-
-    if (prevBufOffset > 0) // Make prev buf overlap a little to make it easier to slice later.
-        prevBuf = Buffer.concat([prevBuf, buf.slice(0, 10)]);
-    
-    for (var i = 0, j = 0; i < buf.length; i++) {
-        var curByte = (i >= 0) ? buf[i] : prevBuf[i + prevBufOffset];
-
-        // Lookup in current trie node.
-        var uCode = this.decodeTables[nodeIdx][curByte];
-
-        if (uCode >= 0) { 
-            // Normal character, just use it.
-        }
-        else if (uCode === UNASSIGNED) { // Unknown char.
-            // TODO: Callback with seq.
-            //var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);
-            i = seqStart; // Try to parse again, after skipping first byte of the sequence ('i' will be incremented by 'for' cycle).
-            uCode = this.defaultCharUnicode.charCodeAt(0);
-        }
-        else if (uCode === GB18030_CODE) {
-            var curSeq = (seqStart >= 0) ? buf.slice(seqStart, i+1) : prevBuf.slice(seqStart + prevBufOffset, i+1 + prevBufOffset);
-            var ptr = (curSeq[0]-0x81)*12600 + (curSeq[1]-0x30)*1260 + (curSeq[2]-0x81)*10 + (curSeq[3]-0x30);
-            var idx = findIdx(this.gb18030.gbChars, ptr);
-            uCode = this.gb18030.uChars[idx] + ptr - this.gb18030.gbChars[idx];
-        }
-        else if (uCode <= NODE_START) { // Go to next trie node.
-            nodeIdx = NODE_START - uCode;
-            continue;
-        }
-        else if (uCode <= SEQ_START) { // Output a sequence of chars.
-            var seq = this.decodeTableSeq[SEQ_START - uCode];
-            for (var k = 0; k < seq.length - 1; k++) {
-                uCode = seq[k];
-                newBuf[j++] = uCode & 0xFF;
-                newBuf[j++] = uCode >> 8;
-            }
-            uCode = seq[seq.length-1];
-        }
-        else
-            throw new Error("iconv-lite internal error: invalid decoding table value " + uCode + " at " + nodeIdx + "/" + curByte);
-
-        // Write the character to buffer, handling higher planes using surrogate pair.
-        if (uCode > 0xFFFF) { 
-            uCode -= 0x10000;
-            var uCodeLead = 0xD800 + Math.floor(uCode / 0x400);
-            newBuf[j++] = uCodeLead & 0xFF;
-            newBuf[j++] = uCodeLead >> 8;
-
-            uCode = 0xDC00 + uCode % 0x400;
-        }
-        newBuf[j++] = uCode & 0xFF;
-        newBuf[j++] = uCode >> 8;
-
-        // Reset trie node.
-        nodeIdx = 0; seqStart = i+1;
-    }
-
-    this.nodeIdx = nodeIdx;
-    this.prevBuf = (seqStart >= 0) ? buf.slice(seqStart) : prevBuf.slice(seqStart + prevBufOffset);
-    return newBuf.slice(0, j).toString('ucs2');
-}
-
-DBCSDecoder.prototype.end = function() {
-    var ret = '';
-
-    // Try to parse all remaining chars.
-    while (this.prevBuf.length > 0) {
-        // Skip 1 character in the buffer.
-        ret += this.defaultCharUnicode;
-        var buf = this.prevBuf.slice(1);
-
-        // Parse remaining as usual.
-        this.prevBuf = Buffer.alloc(0);
-        this.nodeIdx = 0;
-        if (buf.length > 0)
-            ret += this.write(buf);
-    }
-
-    this.nodeIdx = 0;
-    return ret;
-}
-
-// Binary search for GB18030. Returns largest i such that table[i] <= val.
-function findIdx(table, val) {
-    if (table[0] > val)
-        return -1;
-
-    var l = 0, r = table.length;
-    while (l < r-1) { // always table[l] <= val < table[r]
-        var mid = l + Math.floor((r-l+1)/2);
-        if (table[mid] <= val)
-            l = mid;
-        else
-            r = mid;
-    }
-    return l;
-}
-
-
-
-/***/ }),
-/* 711 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// Description of supported double byte encodings and aliases.
-// Tables are not require()-d until they are needed to speed up library load.
-// require()-s are direct to support Browserify.
-
-module.exports = {
-    
-    // == Japanese/ShiftJIS ====================================================
-    // All japanese encodings are based on JIS X set of standards:
-    // JIS X 0201 - Single-byte encoding of ASCII + ¥ + Kana chars at 0xA1-0xDF.
-    // JIS X 0208 - Main set of 6879 characters, placed in 94x94 plane, to be encoded by 2 bytes. 
-    //              Has several variations in 1978, 1983, 1990 and 1997.
-    // JIS X 0212 - Supplementary plane of 6067 chars in 94x94 plane. 1990. Effectively dead.
-    // JIS X 0213 - Extension and modern replacement of 0208 and 0212. Total chars: 11233.
-    //              2 planes, first is superset of 0208, second - revised 0212.
-    //              Introduced in 2000, revised 2004. Some characters are in Unicode Plane 2 (0x2xxxx)
-
-    // Byte encodings are:
-    //  * Shift_JIS: Compatible with 0201, uses not defined chars in top half as lead bytes for double-byte
-    //               encoding of 0208. Lead byte ranges: 0x81-0x9F, 0xE0-0xEF; Trail byte ranges: 0x40-0x7E, 0x80-0x9E, 0x9F-0xFC.
-    //               Windows CP932 is a superset of Shift_JIS. Some companies added more chars, notably KDDI.
-    //  * EUC-JP:    Up to 3 bytes per character. Used mostly on *nixes.
-    //               0x00-0x7F       - lower part of 0201
-    //               0x8E, 0xA1-0xDF - upper part of 0201
-    //               (0xA1-0xFE)x2   - 0208 plane (94x94).
-    //               0x8F, (0xA1-0xFE)x2 - 0212 plane (94x94).
-    //  * JIS X 208: 7-bit, direct encoding of 0208. Byte ranges: 0x21-0x7E (94 values). Uncommon.
-    //               Used as-is in ISO2022 family.
-    //  * ISO2022-JP: Stateful encoding, with escape sequences to switch between ASCII, 
-    //                0201-1976 Roman, 0208-1978, 0208-1983.
-    //  * ISO2022-JP-1: Adds esc seq for 0212-1990.
-    //  * ISO2022-JP-2: Adds esc seq for GB2313-1980, KSX1001-1992, ISO8859-1, ISO8859-7.
-    //  * ISO2022-JP-3: Adds esc seq for 0201-1976 Kana set, 0213-2000 Planes 1, 2.
-    //  * ISO2022-JP-2004: Adds 0213-2004 Plane 1.
-    //
-    // After JIS X 0213 appeared, Shift_JIS-2004, EUC-JISX0213 and ISO2022-JP-2004 followed, with just changing the planes.
-    //
-    // Overall, it seems that it's a mess :( http://www8.plala.or.jp/tkubota1/unicode-symbols-map2.html
-
-    'shiftjis': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(721) },
-        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
-        encodeSkipVals: [{from: 0xED40, to: 0xF940}],
-    },
-    'csshiftjis': 'shiftjis',
-    'mskanji': 'shiftjis',
-    'sjis': 'shiftjis',
-    'windows31j': 'shiftjis',
-    'ms31j': 'shiftjis',
-    'xsjis': 'shiftjis',
-    'windows932': 'shiftjis',
-    'ms932': 'shiftjis',
-    '932': 'shiftjis',
-    'cp932': 'shiftjis',
-
-    'eucjp': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(719) },
-        encodeAdd: {'\u00a5': 0x5C, '\u203E': 0x7E},
-    },
-
-    // TODO: KDDI extension to Shift_JIS
-    // TODO: IBM CCSID 942 = CP932, but F0-F9 custom chars and other char changes.
-    // TODO: IBM CCSID 943 = Shift_JIS = CP932 with original Shift_JIS lower 128 chars.
-
-
-    // == Chinese/GBK ==========================================================
-    // http://en.wikipedia.org/wiki/GBK
-    // We mostly implement W3C recommendation: https://www.w3.org/TR/encoding/#gbk-encoder
-
-    // Oldest GB2312 (1981, ~7600 chars) is a subset of CP936
-    'gb2312': 'cp936',
-    'gb231280': 'cp936',
-    'gb23121980': 'cp936',
-    'csgb2312': 'cp936',
-    'csiso58gb231280': 'cp936',
-    'euccn': 'cp936',
-
-    // Microsoft's CP936 is a subset and approximation of GBK.
-    'windows936': 'cp936',
-    'ms936': 'cp936',
-    '936': 'cp936',
-    'cp936': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(277) },
-    },
-
-    // GBK (~22000 chars) is an extension of CP936 that added user-mapped chars and some other.
-    'gbk': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(277).concat(__webpack_require__(396)) },
-    },
-    'xgbk': 'gbk',
-    'isoir58': 'gbk',
-
-    // GB18030 is an algorithmic extension of GBK.
-    // Main source: https://www.w3.org/TR/encoding/#gbk-encoder
-    // http://icu-project.org/docs/papers/gb18030.html
-    // http://source.icu-project.org/repos/icu/data/trunk/charset/data/xml/gb-18030-2000.xml
-    // http://www.khngai.com/chinese/charmap/tblgbk.php?page=0
-    'gb18030': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(277).concat(__webpack_require__(396)) },
-        gb18030: function() { return __webpack_require__(720) },
-        encodeSkipVals: [0x80],
-        encodeAdd: {'€': 0xA2E3},
-    },
-
-    'chinese': 'gb18030',
-
-
-    // == Korean ===============================================================
-    // EUC-KR, KS_C_5601 and KS X 1001 are exactly the same.
-    'windows949': 'cp949',
-    'ms949': 'cp949',
-    '949': 'cp949',
-    'cp949': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(718) },
-    },
-
-    'cseuckr': 'cp949',
-    'csksc56011987': 'cp949',
-    'euckr': 'cp949',
-    'isoir149': 'cp949',
-    'korean': 'cp949',
-    'ksc56011987': 'cp949',
-    'ksc56011989': 'cp949',
-    'ksc5601': 'cp949',
-
-
-    // == Big5/Taiwan/Hong Kong ================================================
-    // There are lots of tables for Big5 and cp950. Please see the following links for history:
-    // http://moztw.org/docs/big5/  http://www.haible.de/bruno/charsets/conversion-tables/Big5.html
-    // Variations, in roughly number of defined chars:
-    //  * Windows CP 950: Microsoft variant of Big5. Canonical: http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP950.TXT
-    //  * Windows CP 951: Microsoft variant of Big5-HKSCS-2001. Seems to be never public. http://me.abelcheung.org/articles/research/what-is-cp951/
-    //  * Big5-2003 (Taiwan standard) almost superset of cp950.
-    //  * Unicode-at-on (UAO) / Mozilla 1.8. Falling out of use on the Web. Not supported by other browsers.
-    //  * Big5-HKSCS (-2001, -2004, -2008). Hong Kong standard. 
-    //    many unicode code points moved from PUA to Supplementary plane (U+2XXXX) over the years.
-    //    Plus, it has 4 combining sequences.
-    //    Seems that Mozilla refused to support it for 10 yrs. https://bugzilla.mozilla.org/show_bug.cgi?id=162431 https://bugzilla.mozilla.org/show_bug.cgi?id=310299
-    //    because big5-hkscs is the only encoding to include astral characters in non-algorithmic way.
-    //    Implementations are not consistent within browsers; sometimes labeled as just big5.
-    //    MS Internet Explorer switches from big5 to big5-hkscs when a patch applied.
-    //    Great discussion & recap of what's going on https://bugzilla.mozilla.org/show_bug.cgi?id=912470#c31
-    //    In the encoder, it might make sense to support encoding old PUA mappings to Big5 bytes seq-s.
-    //    Official spec: http://www.ogcio.gov.hk/en/business/tech_promotion/ccli/terms/doc/2003cmp_2008.txt
-    //                   http://www.ogcio.gov.hk/tc/business/tech_promotion/ccli/terms/doc/hkscs-2008-big5-iso.txt
-    // 
-    // Current understanding of how to deal with Big5(-HKSCS) is in the Encoding Standard, http://encoding.spec.whatwg.org/#big5-encoder
-    // Unicode mapping (http://www.unicode.org/Public/MAPPINGS/OBSOLETE/EASTASIA/OTHER/BIG5.TXT) is said to be wrong.
-
-    'windows950': 'cp950',
-    'ms950': 'cp950',
-    '950': 'cp950',
-    'cp950': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(395) },
-    },
-
-    // Big5 has many variations and is an extension of cp950. We use Encoding Standard's as a consensus.
-    'big5': 'big5hkscs',
-    'big5hkscs': {
-        type: '_dbcs',
-        table: function() { return __webpack_require__(395).concat(__webpack_require__(717)) },
-        encodeSkipVals: [0xa2cc],
-    },
-
-    'cnbig5': 'big5hkscs',
-    'csbig5': 'big5hkscs',
-    'xxbig5': 'big5hkscs',
-};
-
-
-/***/ }),
-/* 712 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// Update this array if you add/rename/remove files in this directory.
-// We support Browserify by skipping automatic module discovery and requiring modules directly.
-var modules = [
-    __webpack_require__(713),
-    __webpack_require__(722),
-    __webpack_require__(723),
-    __webpack_require__(714),
-    __webpack_require__(716),
-    __webpack_require__(715),
-    __webpack_require__(710),
-    __webpack_require__(711),
-];
-
-// Put all encoding/alias/codec definitions to single object and export it. 
-for (var i = 0; i < modules.length; i++) {
-    var module = modules[i];
-    for (var enc in module)
-        if (Object.prototype.hasOwnProperty.call(module, enc))
-            exports[enc] = module[enc];
-}
-
-
-/***/ }),
-/* 713 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var Buffer = __webpack_require__(15).Buffer;
-
-// Export Node.js internal encodings.
-
-module.exports = {
-    // Encodings
-    utf8:   { type: "_internal", bomAware: true},
-    cesu8:  { type: "_internal", bomAware: true},
-    unicode11utf8: "utf8",
-
-    ucs2:   { type: "_internal", bomAware: true},
-    utf16le: "ucs2",
-
-    binary: { type: "_internal" },
-    base64: { type: "_internal" },
-    hex:    { type: "_internal" },
-
-    // Codec.
-    _internal: InternalCodec,
-};
-
-//------------------------------------------------------------------------------
-
-function InternalCodec(codecOptions, iconv) {
-    this.enc = codecOptions.encodingName;
-    this.bomAware = codecOptions.bomAware;
-
-    if (this.enc === "base64")
-        this.encoder = InternalEncoderBase64;
-    else if (this.enc === "cesu8") {
-        this.enc = "utf8"; // Use utf8 for decoding.
-        this.encoder = InternalEncoderCesu8;
-
-        // Add decoder for versions of Node not supporting CESU-8
-        if (Buffer.from('eda0bdedb2a9', 'hex').toString() !== '💩') {
-            this.decoder = InternalDecoderCesu8;
-            this.defaultCharUnicode = iconv.defaultCharUnicode;
-        }
-    }
-}
-
-InternalCodec.prototype.encoder = InternalEncoder;
-InternalCodec.prototype.decoder = InternalDecoder;
-
-//------------------------------------------------------------------------------
-
-// We use node.js internal decoder. Its signature is the same as ours.
-var StringDecoder = __webpack_require__(333).StringDecoder;
-
-if (!StringDecoder.prototype.end) // Node v0.8 doesn't have this method.
-    StringDecoder.prototype.end = function() {};
-
-
-function InternalDecoder(options, codec) {
-    StringDecoder.call(this, codec.enc);
-}
-
-InternalDecoder.prototype = StringDecoder.prototype;
-
-
-//------------------------------------------------------------------------------
-// Encoder is mostly trivial
-
-function InternalEncoder(options, codec) {
-    this.enc = codec.enc;
-}
-
-InternalEncoder.prototype.write = function(str) {
-    return Buffer.from(str, this.enc);
-}
-
-InternalEncoder.prototype.end = function() {
-}
-
-
-//------------------------------------------------------------------------------
-// Except base64 encoder, which must keep its state.
-
-function InternalEncoderBase64(options, codec) {
-    this.prevStr = '';
-}
-
-InternalEncoderBase64.prototype.write = function(str) {
-    str = this.prevStr + str;
-    var completeQuads = str.length - (str.length % 4);
-    this.prevStr = str.slice(completeQuads);
-    str = str.slice(0, completeQuads);
-
-    return Buffer.from(str, "base64");
-}
-
-InternalEncoderBase64.prototype.end = function() {
-    return Buffer.from(this.prevStr, "base64");
-}
-
-
-//------------------------------------------------------------------------------
-// CESU-8 encoder is also special.
-
-function InternalEncoderCesu8(options, codec) {
-}
-
-InternalEncoderCesu8.prototype.write = function(str) {
-    var buf = Buffer.alloc(str.length * 3), bufIdx = 0;
-    for (var i = 0; i < str.length; i++) {
-        var charCode = str.charCodeAt(i);
-        // Naive implementation, but it works because CESU-8 is especially easy
-        // to convert from UTF-16 (which all JS strings are encoded in).
-        if (charCode < 0x80)
-            buf[bufIdx++] = charCode;
-        else if (charCode < 0x800) {
-            buf[bufIdx++] = 0xC0 + (charCode >>> 6);
-            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
-        }
-        else { // charCode will always be < 0x10000 in javascript.
-            buf[bufIdx++] = 0xE0 + (charCode >>> 12);
-            buf[bufIdx++] = 0x80 + ((charCode >>> 6) & 0x3f);
-            buf[bufIdx++] = 0x80 + (charCode & 0x3f);
-        }
-    }
-    return buf.slice(0, bufIdx);
-}
-
-InternalEncoderCesu8.prototype.end = function() {
-}
-
-//------------------------------------------------------------------------------
-// CESU-8 decoder is not implemented in Node v4.0+
-
-function InternalDecoderCesu8(options, codec) {
-    this.acc = 0;
-    this.contBytes = 0;
-    this.accBytes = 0;
-    this.defaultCharUnicode = codec.defaultCharUnicode;
-}
-
-InternalDecoderCesu8.prototype.write = function(buf) {
-    var acc = this.acc, contBytes = this.contBytes, accBytes = this.accBytes, 
-        res = '';
-    for (var i = 0; i < buf.length; i++) {
-        var curByte = buf[i];
-        if ((curByte & 0xC0) !== 0x80) { // Leading byte
-            if (contBytes > 0) { // Previous code is invalid
-                res += this.defaultCharUnicode;
-                contBytes = 0;
-            }
-
-            if (curByte < 0x80) { // Single-byte code
-                res += String.fromCharCode(curByte);
-            } else if (curByte < 0xE0) { // Two-byte code
-                acc = curByte & 0x1F;
-                contBytes = 1; accBytes = 1;
-            } else if (curByte < 0xF0) { // Three-byte code
-                acc = curByte & 0x0F;
-                contBytes = 2; accBytes = 1;
-            } else { // Four or more are not supported for CESU-8.
-                res += this.defaultCharUnicode;
-            }
-        } else { // Continuation byte
-            if (contBytes > 0) { // We're waiting for it.
-                acc = (acc << 6) | (curByte & 0x3f);
-                contBytes--; accBytes++;
-                if (contBytes === 0) {
-                    // Check for overlong encoding, but support Modified UTF-8 (encoding NULL as C0 80)
-                    if (accBytes === 2 && acc < 0x80 && acc > 0)
-                        res += this.defaultCharUnicode;
-                    else if (accBytes === 3 && acc < 0x800)
-                        res += this.defaultCharUnicode;
-                    else
-                        // Actually add character.
-                        res += String.fromCharCode(acc);
-                }
-            } else { // Unexpected continuation byte
-                res += this.defaultCharUnicode;
-            }
-        }
-    }
-    this.acc = acc; this.contBytes = contBytes; this.accBytes = accBytes;
-    return res;
-}
-
-InternalDecoderCesu8.prototype.end = function() {
-    var res = 0;
-    if (this.contBytes > 0)
-        res += this.defaultCharUnicode;
-    return res;
-}
-
-
-/***/ }),
-/* 714 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var Buffer = __webpack_require__(15).Buffer;
-
-// Single-byte codec. Needs a 'chars' string parameter that contains 256 or 128 chars that
-// correspond to encoded bytes (if 128 - then lower half is ASCII). 
-
-exports._sbcs = SBCSCodec;
-function SBCSCodec(codecOptions, iconv) {
-    if (!codecOptions)
-        throw new Error("SBCS codec is called without the data.")
-    
-    // Prepare char buffer for decoding.
-    if (!codecOptions.chars || (codecOptions.chars.length !== 128 && codecOptions.chars.length !== 256))
-        throw new Error("Encoding '"+codecOptions.type+"' has incorrect 'chars' (must be of len 128 or 256)");
-    
-    if (codecOptions.chars.length === 128) {
-        var asciiString = "";
-        for (var i = 0; i < 128; i++)
-            asciiString += String.fromCharCode(i);
-        codecOptions.chars = asciiString + codecOptions.chars;
-    }
-
-    this.decodeBuf = Buffer.from(codecOptions.chars, 'ucs2');
-    
-    // Encoding buffer.
-    var encodeBuf = Buffer.alloc(65536, iconv.defaultCharSingleByte.charCodeAt(0));
-
-    for (var i = 0; i < codecOptions.chars.length; i++)
-        encodeBuf[codecOptions.chars.charCodeAt(i)] = i;
-
-    this.encodeBuf = encodeBuf;
-}
-
-SBCSCodec.prototype.encoder = SBCSEncoder;
-SBCSCodec.prototype.decoder = SBCSDecoder;
-
-
-function SBCSEncoder(options, codec) {
-    this.encodeBuf = codec.encodeBuf;
-}
-
-SBCSEncoder.prototype.write = function(str) {
-    var buf = Buffer.alloc(str.length);
-    for (var i = 0; i < str.length; i++)
-        buf[i] = this.encodeBuf[str.charCodeAt(i)];
-    
-    return buf;
-}
-
-SBCSEncoder.prototype.end = function() {
-}
-
-
-function SBCSDecoder(options, codec) {
-    this.decodeBuf = codec.decodeBuf;
-}
-
-SBCSDecoder.prototype.write = function(buf) {
-    // Strings are immutable in JS -> we use ucs2 buffer to speed up computations.
-    var decodeBuf = this.decodeBuf;
-    var newBuf = Buffer.alloc(buf.length*2);
-    var idx1 = 0, idx2 = 0;
-    for (var i = 0; i < buf.length; i++) {
-        idx1 = buf[i]*2; idx2 = i*2;
-        newBuf[idx2] = decodeBuf[idx1];
-        newBuf[idx2+1] = decodeBuf[idx1+1];
-    }
-    return newBuf.toString('ucs2');
-}
-
-SBCSDecoder.prototype.end = function() {
-}
-
-
-/***/ }),
-/* 715 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// Generated data for sbcs codec. Don't edit manually. Regenerate using generation/gen-sbcs.js script.
-module.exports = {
-  "437": "cp437",
-  "737": "cp737",
-  "775": "cp775",
-  "850": "cp850",
-  "852": "cp852",
-  "855": "cp855",
-  "856": "cp856",
-  "857": "cp857",
-  "858": "cp858",
-  "860": "cp860",
-  "861": "cp861",
-  "862": "cp862",
-  "863": "cp863",
-  "864": "cp864",
-  "865": "cp865",
-  "866": "cp866",
-  "869": "cp869",
-  "874": "windows874",
-  "922": "cp922",
-  "1046": "cp1046",
-  "1124": "cp1124",
-  "1125": "cp1125",
-  "1129": "cp1129",
-  "1133": "cp1133",
-  "1161": "cp1161",
-  "1162": "cp1162",
-  "1163": "cp1163",
-  "1250": "windows1250",
-  "1251": "windows1251",
-  "1252": "windows1252",
-  "1253": "windows1253",
-  "1254": "windows1254",
-  "1255": "windows1255",
-  "1256": "windows1256",
-  "1257": "windows1257",
-  "1258": "windows1258",
-  "28591": "iso88591",
-  "28592": "iso88592",
-  "28593": "iso88593",
-  "28594": "iso88594",
-  "28595": "iso88595",
-  "28596": "iso88596",
-  "28597": "iso88597",
-  "28598": "iso88598",
-  "28599": "iso88599",
-  "28600": "iso885910",
-  "28601": "iso885911",
-  "28603": "iso885913",
-  "28604": "iso885914",
-  "28605": "iso885915",
-  "28606": "iso885916",
-  "windows874": {
-    "type": "_sbcs",
-    "chars": "€����…�����������‘’“”•–—�������� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
-  },
-  "win874": "windows874",
-  "cp874": "windows874",
-  "windows1250": {
-    "type": "_sbcs",
-    "chars": "€�‚�„…†‡�‰Š‹ŚŤŽŹ�‘’“”•–—�™š›śťžź ˇ˘Ł¤Ą¦§¨©Ş«¬­®Ż°±˛ł´µ¶·¸ąş»Ľ˝ľżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
-  },
-  "win1250": "windows1250",
-  "cp1250": "windows1250",
-  "windows1251": {
-    "type": "_sbcs",
-    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊЌЋЏђ‘’“”•–—�™љ›њќћџ ЎўЈ¤Ґ¦§Ё©Є«¬­®Ї°±Ііґµ¶·ё№є»јЅѕїАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
-  },
-  "win1251": "windows1251",
-  "cp1251": "windows1251",
-  "windows1252": {
-    "type": "_sbcs",
-    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ�Ž��‘’“”•–—˜™š›œ�žŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
-  },
-  "win1252": "windows1252",
-  "cp1252": "windows1252",
-  "windows1253": {
-    "type": "_sbcs",
-    "chars": "€�‚ƒ„…†‡�‰�‹�����‘’“”•–—�™�›���� ΅Ά£¤¥¦§¨©�«¬­®―°±²³΄µ¶·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
-  },
-  "win1253": "windows1253",
-  "cp1253": "windows1253",
-  "windows1254": {
-    "type": "_sbcs",
-    "chars": "€�‚ƒ„…†‡ˆ‰Š‹Œ����‘’“”•–—˜™š›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
-  },
-  "win1254": "windows1254",
-  "cp1254": "windows1254",
-  "windows1255": {
-    "type": "_sbcs",
-    "chars": "€�‚ƒ„…†‡ˆ‰�‹�����‘’“”•–—˜™�›���� ¡¢£₪¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾¿ְֱֲֳִֵֶַָֹֺֻּֽ־ֿ׀ׁׂ׃װױײ׳״�������אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
-  },
-  "win1255": "windows1255",
-  "cp1255": "windows1255",
-  "windows1256": {
-    "type": "_sbcs",
-    "chars": "€پ‚ƒ„…†‡ˆ‰ٹ‹Œچژڈگ‘’“”•–—ک™ڑ›œ‌‍ں ،¢£¤¥¦§¨©ھ«¬­®¯°±²³´µ¶·¸¹؛»¼½¾؟ہءآأؤإئابةتثجحخدذرزسشصض×طظعغـفقكàلâمنهوçèéêëىيîïًٌٍَôُِ÷ّùْûü‎‏ے"
-  },
-  "win1256": "windows1256",
-  "cp1256": "windows1256",
-  "windows1257": {
-    "type": "_sbcs",
-    "chars": "€�‚�„…†‡�‰�‹�¨ˇ¸�‘’“”•–—�™�›�¯˛� �¢£¤�¦§Ø©Ŗ«¬­®Æ°±²³´µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž˙"
-  },
-  "win1257": "windows1257",
-  "cp1257": "windows1257",
-  "windows1258": {
-    "type": "_sbcs",
-    "chars": "€�‚ƒ„…†‡ˆ‰�‹Œ����‘’“”•–—˜™�›œ��Ÿ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
-  },
-  "win1258": "windows1258",
-  "cp1258": "windows1258",
-  "iso88591": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
-  },
-  "cp28591": "iso88591",
-  "iso88592": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ą˘Ł¤ĽŚ§¨ŠŞŤŹ­ŽŻ°ą˛ł´ľśˇ¸šşťź˝žżŔÁÂĂÄĹĆÇČÉĘËĚÍÎĎĐŃŇÓÔŐÖ×ŘŮÚŰÜÝŢßŕáâăäĺćçčéęëěíîďđńňóôőö÷řůúűüýţ˙"
-  },
-  "cp28592": "iso88592",
-  "iso88593": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ħ˘£¤�Ĥ§¨İŞĞĴ­�Ż°ħ²³´µĥ·¸ışğĵ½�żÀÁÂ�ÄĊĈÇÈÉÊËÌÍÎÏ�ÑÒÓÔĠÖ×ĜÙÚÛÜŬŜßàáâ�äċĉçèéêëìíîï�ñòóôġö÷ĝùúûüŭŝ˙"
-  },
-  "cp28593": "iso88593",
-  "iso88594": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĸŖ¤ĨĻ§¨ŠĒĢŦ­Ž¯°ą˛ŗ´ĩļˇ¸šēģŧŊžŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎĪĐŅŌĶÔÕÖ×ØŲÚÛÜŨŪßāáâãäåæįčéęëėíîīđņōķôõö÷øųúûüũū˙"
-  },
-  "cp28594": "iso88594",
-  "iso88595": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂЃЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђѓєѕіїјљњћќ§ўџ"
-  },
-  "cp28595": "iso88595",
-  "iso88596": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ���¤�������،­�������������؛���؟�ءآأؤإئابةتثجحخدذرزسشصضطظعغ�����ـفقكلمنهوىيًٌٍَُِّْ�������������"
-  },
-  "cp28596": "iso88596",
-  "iso88597": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ‘’£€₯¦§¨©ͺ«¬­�―°±²³΄΅Ά·ΈΉΊ»Ό½ΎΏΐΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡ�ΣΤΥΦΧΨΩΪΫάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ�"
-  },
-  "cp28597": "iso88597",
-  "iso88598": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �¢£¤¥¦§¨©×«¬­®¯°±²³´µ¶·¸¹÷»¼½¾��������������������������������‗אבגדהוזחטיךכלםמןנסעףפץצקרשת��‎‏�"
-  },
-  "cp28598": "iso88598",
-  "iso88599": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏĞÑÒÓÔÕÖ×ØÙÚÛÜİŞßàáâãäåæçèéêëìíîïğñòóôõö÷øùúûüışÿ"
-  },
-  "cp28599": "iso88599",
-  "iso885910": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄĒĢĪĨĶ§ĻĐŠŦŽ­ŪŊ°ąēģīĩķ·ļđšŧž―ūŋĀÁÂÃÄÅÆĮČÉĘËĖÍÎÏÐŅŌÓÔÕÖŨØŲÚÛÜÝÞßāáâãäåæįčéęëėíîïðņōóôõöũøųúûüýþĸ"
-  },
-  "cp28600": "iso885910",
-  "iso885911": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
-  },
-  "cp28601": "iso885911",
-  "iso885913": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ”¢£¤„¦§Ø©Ŗ«¬­®Æ°±²³“µ¶·ø¹ŗ»¼½¾æĄĮĀĆÄÅĘĒČÉŹĖĢĶĪĻŠŃŅÓŌÕÖ×ŲŁŚŪÜŻŽßąįāćäåęēčéźėģķīļšńņóōõö÷ųłśūüżž’"
-  },
-  "cp28603": "iso885913",
-  "iso885914": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ Ḃḃ£ĊċḊ§Ẁ©ẂḋỲ­®ŸḞḟĠġṀṁ¶ṖẁṗẃṠỳẄẅṡÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŴÑÒÓÔÕÖṪØÙÚÛÜÝŶßàáâãäåæçèéêëìíîïŵñòóôõöṫøùúûüýŷÿ"
-  },
-  "cp28604": "iso885914",
-  "iso885915": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥Š§š©ª«¬­®¯°±²³Žµ¶·ž¹º»ŒœŸ¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
-  },
-  "cp28605": "iso885915",
-  "iso885916": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ĄąŁ€„Š§š©Ș«Ź­źŻ°±ČłŽ”¶·žčș»ŒœŸżÀÁÂĂÄĆÆÇÈÉÊËÌÍÎÏĐŃÒÓÔŐÖŚŰÙÚÛÜĘȚßàáâăäćæçèéêëìíîïđńòóôőöśűùúûüęțÿ"
-  },
-  "cp28606": "iso885916",
-  "cp437": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm437": "cp437",
-  "csibm437": "cp437",
-  "cp737": {
-    "type": "_sbcs",
-    "chars": "ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρσςτυφχψ░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀ωάέήϊίόύϋώΆΈΉΊΌΎΏ±≥≤ΪΫ÷≈°∙·√ⁿ²■ "
-  },
-  "ibm737": "cp737",
-  "csibm737": "cp737",
-  "cp775": {
-    "type": "_sbcs",
-    "chars": "ĆüéāäģåćłēŖŗīŹÄÅÉæÆōöĢ¢ŚśÖÜø£ØפĀĪóŻżź”¦©®¬½¼Ł«»░▒▓│┤ĄČĘĖ╣║╗╝ĮŠ┐└┴┬├─┼ŲŪ╚╔╩╦╠═╬Žąčęėįšųūž┘┌█▄▌▐▀ÓßŌŃõÕµńĶķĻļņĒŅ’­±“¾¶§÷„°∙·¹³²■ "
-  },
-  "ibm775": "cp775",
-  "csibm775": "cp775",
-  "cp850": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈıÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
-  },
-  "ibm850": "cp850",
-  "csibm850": "cp850",
-  "cp852": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäůćçłëŐőîŹÄĆÉĹĺôöĽľŚśÖÜŤťŁ×čáíóúĄąŽžĘ꬟Ⱥ«»░▒▓│┤ÁÂĚŞ╣║╗╝Żż┐└┴┬├─┼Ăă╚╔╩╦╠═╬¤đĐĎËďŇÍÎě┘┌█▄ŢŮ▀ÓßÔŃńňŠšŔÚŕŰýÝţ´­˝˛ˇ˘§÷¸°¨˙űŘř■ "
-  },
-  "ibm852": "cp852",
-  "csibm852": "cp852",
-  "cp855": {
-    "type": "_sbcs",
-    "chars": "ђЂѓЃёЁєЄѕЅіІїЇјЈљЉњЊћЋќЌўЎџЏюЮъЪаАбБцЦдДеЕфФгГ«»░▒▓│┤хХиИ╣║╗╝йЙ┐└┴┬├─┼кК╚╔╩╦╠═╬¤лЛмМнНоОп┘┌█▄Пя▀ЯрРсСтТуУжЖвВьЬ№­ыЫзЗшШэЭщЩчЧ§■ "
-  },
-  "ibm855": "cp855",
-  "csibm855": "cp855",
-  "cp856": {
-    "type": "_sbcs",
-    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת�£�×����������®¬½¼�«»░▒▓│┤���©╣║╗╝¢¥┐└┴┬├─┼��╚╔╩╦╠═╬¤���������┘┌█▄¦�▀������µ�������¯´­±‗¾¶§÷¸°¨·¹³²■ "
-  },
-  "ibm856": "cp856",
-  "csibm856": "cp856",
-  "cp857": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèïîıÄÅÉæÆôöòûùİÖÜø£ØŞşáíóúñÑĞ𿮬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ºªÊËÈ�ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµ�×ÚÛÙìÿ¯´­±�¾¶§÷¸°¨·¹³²■ "
-  },
-  "ibm857": "cp857",
-  "csibm857": "cp857",
-  "cp858": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø׃áíóúñѪº¿®¬½¼¡«»░▒▓│┤ÁÂÀ©╣║╗╝¢¥┐└┴┬├─┼ãÃ╚╔╩╦╠═╬¤ðÐÊËÈ€ÍÎÏ┘┌█▄¦Ì▀ÓßÔÒõÕµþÞÚÛÙýݯ´­±‗¾¶§÷¸°¨·¹³²■ "
-  },
-  "ibm858": "cp858",
-  "csibm858": "cp858",
-  "cp860": {
-    "type": "_sbcs",
-    "chars": "ÇüéâãàÁçêÊèÍÔìÃÂÉÀÈôõòÚùÌÕÜ¢£Ù₧ÓáíóúñѪº¿Ò¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm860": "cp860",
-  "csibm860": "cp860",
-  "cp861": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèÐðÞÄÅÉæÆôöþûÝýÖÜø£Ø₧ƒáíóúÁÍÓÚ¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm861": "cp861",
-  "csibm861": "cp861",
-  "cp862": {
-    "type": "_sbcs",
-    "chars": "אבגדהוזחטיךכלםמןנסעףפץצקרשת¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm862": "cp862",
-  "csibm862": "cp862",
-  "cp863": {
-    "type": "_sbcs",
-    "chars": "ÇüéâÂà¶çêëèïî‗À§ÉÈÊôËÏûù¤ÔÜ¢£ÙÛƒ¦´óú¨¸³¯Î⌐¬½¼¾«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm863": "cp863",
-  "csibm863": "cp863",
-  "cp864": {
-    "type": "_sbcs",
-    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$٪&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~°·∙√▒─│┼┤┬├┴┐┌└┘β∞φ±½¼≈«»ﻷﻸ��ﻻﻼ� ­ﺂ£¤ﺄ��ﺎﺏﺕﺙ،ﺝﺡﺥ٠١٢٣٤٥٦٧٨٩ﻑ؛ﺱﺵﺹ؟¢ﺀﺁﺃﺅﻊﺋﺍﺑﺓﺗﺛﺟﺣﺧﺩﺫﺭﺯﺳﺷﺻﺿﻁﻅﻋﻏ¦¬÷×ﻉـﻓﻗﻛﻟﻣﻧﻫﻭﻯﻳﺽﻌﻎﻍﻡﹽّﻥﻩﻬﻰﻲﻐﻕﻵﻶﻝﻙﻱ■�"
-  },
-  "ibm864": "cp864",
-  "csibm864": "cp864",
-  "cp865": {
-    "type": "_sbcs",
-    "chars": "ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜø£Ø₧ƒáíóúñѪº¿⌐¬½¼¡«¤░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-  },
-  "ibm865": "cp865",
-  "csibm865": "cp865",
-  "cp866": {
-    "type": "_sbcs",
-    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№¤■ "
-  },
-  "ibm866": "cp866",
-  "csibm866": "cp866",
-  "cp869": {
-    "type": "_sbcs",
-    "chars": "������Ά�·¬¦‘’Έ―ΉΊΪΌ��ΎΫ©Ώ²³ά£έήίϊΐόύΑΒΓΔΕΖΗ½ΘΙ«»░▒▓│┤ΚΛΜΝ╣║╗╝ΞΟ┐└┴┬├─┼ΠΡ╚╔╩╦╠═╬ΣΤΥΦΧΨΩαβγ┘┌█▄δε▀ζηθικλμνξοπρσςτ΄­±υφχ§ψ΅°¨ωϋΰώ■ "
-  },
-  "ibm869": "cp869",
-  "csibm869": "cp869",
-  "cp922": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®‾°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏŠÑÒÓÔÕÖ×ØÙÚÛÜÝŽßàáâãäåæçèéêëìíîïšñòóôõö÷øùúûüýžÿ"
-  },
-  "ibm922": "cp922",
-  "csibm922": "cp922",
-  "cp1046": {
-    "type": "_sbcs",
-    "chars": "ﺈ×÷ﹱˆ■│─┐┌└┘ﹹﹻﹽﹿﹷﺊﻰﻳﻲﻎﻏﻐﻶﻸﻺﻼ ¤ﺋﺑﺗﺛﺟﺣ،­ﺧﺳ٠١٢٣٤٥٦٧٨٩ﺷ؛ﺻﺿﻊ؟ﻋءآأؤإئابةتثجحخدذرزسشصضطﻇعغﻌﺂﺄﺎﻓـفقكلمنهوىيًٌٍَُِّْﻗﻛﻟﻵﻷﻹﻻﻣﻧﻬﻩ�"
-  },
-  "ibm1046": "cp1046",
-  "csibm1046": "cp1046",
-  "cp1124": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ЁЂҐЄЅІЇЈЉЊЋЌ­ЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя№ёђґєѕіїјљњћќ§ўџ"
-  },
-  "ibm1124": "cp1124",
-  "csibm1124": "cp1124",
-  "cp1125": {
-    "type": "_sbcs",
-    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёҐґЄєІіЇї·√№¤■ "
-  },
-  "ibm1125": "cp1125",
-  "csibm1125": "cp1125",
-  "cp1129": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
-  },
-  "ibm1129": "cp1129",
-  "csibm1129": "cp1129",
-  "cp1133": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ກຂຄງຈສຊຍດຕຖທນບປຜຝພຟມຢຣລວຫອຮ���ຯະາຳິີຶືຸູຼັົຽ���ເແໂໃໄ່້໊໋໌ໍໆ�ໜໝ₭����������������໐໑໒໓໔໕໖໗໘໙��¢¬¦�"
-  },
-  "ibm1133": "cp1133",
-  "csibm1133": "cp1133",
-  "cp1161": {
-    "type": "_sbcs",
-    "chars": "��������������������������������่กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู้๊๋€฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛¢¬¦ "
-  },
-  "ibm1161": "cp1161",
-  "csibm1161": "cp1161",
-  "cp1162": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
-  },
-  "ibm1162": "cp1162",
-  "csibm1162": "cp1162",
-  "cp1163": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£€¥¦§œ©ª«¬­®¯°±²³Ÿµ¶·Œ¹º»¼½¾¿ÀÁÂĂÄÅÆÇÈÉÊË̀ÍÎÏĐÑ̉ÓÔƠÖ×ØÙÚÛÜỮßàáâăäåæçèéêë́íîïđṇ̃óôơö÷øùúûüư₫ÿ"
-  },
-  "ibm1163": "cp1163",
-  "csibm1163": "cp1163",
-  "maccroatian": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®Š™´¨≠ŽØ∞±≤≥∆µ∂∑∏š∫ªºΩžø¿¡¬√ƒ≈Ć«Č… ÀÃÕŒœĐ—“”‘’÷◊�©⁄¤‹›Æ»–·‚„‰ÂćÁčÈÍÎÏÌÓÔđÒÚÛÙıˆ˜¯πË˚¸Êæˇ"
-  },
-  "maccyrillic": {
-    "type": "_sbcs",
-    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°¢£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµ∂ЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
-  },
-  "macgreek": {
-    "type": "_sbcs",
-    "chars": "Ĺ²É³ÖÜ΅àâä΄¨çéèê룙î‰ôö¦­ùûü†ΓΔΘΛΞΠß®©ΣΪ§≠°·Α±≤≥¥ΒΕΖΗΙΚΜΦΫΨΩάΝ¬ΟΡ≈Τ«»… ΥΧΆΈœ–―“”‘’÷ΉΊΌΎέήίόΏύαβψδεφγηιξκλμνοπώρστθωςχυζϊϋΐΰ�"
-  },
-  "maciceland": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûüÝ°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤ÐðÞþý·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
-  },
-  "macroman": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
-  },
-  "macromania": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ĂŞ∞±≤≥¥µ∂∑∏π∫ªºΩăş¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›Ţţ‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
-  },
-  "macthai": {
-    "type": "_sbcs",
-    "chars": "«»…“”�•‘’� กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู​–—฿เแโใไๅๆ็่้๊๋์ํ™๏๐๑๒๓๔๕๖๗๘๙®©����"
-  },
-  "macturkish": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸĞğİıŞş‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙ�ˆ˜¯˘˙˚¸˝˛ˇ"
-  },
-  "macukraine": {
-    "type": "_sbcs",
-    "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ†°Ґ£§•¶І®©™Ђђ≠Ѓѓ∞±≤≥іµґЈЄєЇїЉљЊњјЅ¬√ƒ≈∆«»… ЋћЌќѕ–—“”‘’÷„ЎўЏџ№Ёёяабвгдежзийклмнопрстуфхцчшщъыьэю¤"
-  },
-  "koi8r": {
-    "type": "_sbcs",
-    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ё╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡Ё╢╣╤╥╦╧╨╩╪╫╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
-  },
-  "koi8u": {
-    "type": "_sbcs",
-    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґ╝╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪Ґ╬©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
-  },
-  "koi8ru": {
-    "type": "_sbcs",
-    "chars": "─│┌┐└┘├┤┬┴┼▀▄█▌▐░▒▓⌠■∙√≈≤≥ ⌡°²·÷═║╒ёє╔ії╗╘╙╚╛ґў╞╟╠╡ЁЄ╣ІЇ╦╧╨╩╪ҐЎ©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
-  },
-  "koi8t": {
-    "type": "_sbcs",
-    "chars": "қғ‚Ғ„…†‡�‰ҳ‹ҲҷҶ�Қ‘’“”•–—�™�›�����ӯӮё¤ӣ¦§���«¬­®�°±²Ё�Ӣ¶·�№�»���©юабцдефгхийклмнопярстужвьызшэщчъЮАБЦДЕФГХИЙКЛМНОПЯРСТУЖВЬЫЗШЭЩЧЪ"
-  },
-  "armscii8": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ �և։)(»«—.՝,-֊…՜՛՞ԱաԲբԳգԴդԵեԶզԷէԸըԹթԺժԻիԼլԽխԾծԿկՀհՁձՂղՃճՄմՅյՆնՇշՈոՉչՊպՋջՌռՍսՎվՏտՐրՑցՒւՓփՔքՕօՖֆ՚�"
-  },
-  "rk1048": {
-    "type": "_sbcs",
-    "chars": "ЂЃ‚ѓ„…†‡€‰Љ‹ЊҚҺЏђ‘’“”•–—�™љ›њқһџ ҰұӘ¤Ө¦§Ё©Ғ«¬­®Ү°±Ііөµ¶·ё№ғ»әҢңүАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
-  },
-  "tcvn": {
-    "type": "_sbcs",
-    "chars": "\u0000ÚỤ\u0003ỪỬỮ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010ỨỰỲỶỸÝỴ\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ÀẢÃÁẠẶẬÈẺẼÉẸỆÌỈĨÍỊÒỎÕÓỌỘỜỞỠỚỢÙỦŨ ĂÂÊÔƠƯĐăâêôơưđẶ̀̀̉̃́àảãáạẲằẳẵắẴẮẦẨẪẤỀặầẩẫấậèỂẻẽéẹềểễếệìỉỄẾỒĩíịòỔỏõóọồổỗốộờởỡớợùỖủũúụừửữứựỳỷỹýỵỐ"
-  },
-  "georgianacademy": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზთიკლმნოპჟრსტუფქღყშჩცძწჭხჯჰჱჲჳჴჵჶçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
-  },
-  "georgianps": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿აბგდევზჱთიკლმნჲოპჟრსტჳუფქღყშჩცძწჭხჴჯჰჵæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
-  },
-  "pt154": {
-    "type": "_sbcs",
-    "chars": "ҖҒӮғ„…ҶҮҲүҠӢҢҚҺҸҗ‘’“”•–—ҳҷҡӣңқһҹ ЎўЈӨҘҰ§Ё©Ә«¬ӯ®Ҝ°ұІіҙө¶·ё№ә»јҪҫҝАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя"
-  },
-  "viscii": {
-    "type": "_sbcs",
-    "chars": "\u0000\u0001Ẳ\u0003\u0004ẴẪ\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013Ỷ\u0015\u0016\u0017\u0018Ỹ\u001a\u001b\u001c\u001dỴ\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~ẠẮẰẶẤẦẨẬẼẸẾỀỂỄỆỐỒỔỖỘỢỚỜỞỊỎỌỈỦŨỤỲÕắằặấầẩậẽẹếềểễệốồổỗỠƠộờởịỰỨỪỬơớƯÀÁÂÃẢĂẳẵÈÉÊẺÌÍĨỳĐứÒÓÔạỷừửÙÚỹỵÝỡưàáâãảăữẫèéêẻìíĩỉđựòóôõỏọụùúũủýợỮ"
-  },
-  "iso646cn": {
-    "type": "_sbcs",
-    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#¥%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
-  },
-  "iso646jp": {
-    "type": "_sbcs",
-    "chars": "\u0000\u0001\u0002\u0003\u0004\u0005\u0006\u0007\b\t\n\u000b\f\r\u000e\u000f\u0010\u0011\u0012\u0013\u0014\u0015\u0016\u0017\u0018\u0019\u001a\u001b\u001c\u001d\u001e\u001f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[¥]^_`abcdefghijklmnopqrstuvwxyz{|}‾��������������������������������������������������������������������������������������������������������������������������������"
-  },
-  "hproman8": {
-    "type": "_sbcs",
-    "chars": "€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ÀÂÈÊËÎÏ´ˋˆ¨˜ÙÛ₤¯Ýý°ÇçÑñ¡¿¤£¥§ƒ¢âêôûáéóúàèòùäëöüÅîØÆåíøæÄìÖÜÉïßÔÁÃãÐðÍÌÓÒÕõŠšÚŸÿÞþ·µ¶¾—¼½ªº«■»±�"
-  },
-  "macintosh": {
-    "type": "_sbcs",
-    "chars": "ÄÅÇÉÑÖÜáàâäãåçéèêëíìîïñóòôöõúùûü†°¢£§•¶ß®©™´¨≠ÆØ∞±≤≥¥µ∂∑∏π∫ªºΩæø¿¡¬√ƒ≈∆«»… ÀÃÕŒœ–—“”‘’÷◊ÿŸ⁄¤‹›fifl‡·‚„‰ÂÊÁËÈÍÎÏÌÓÔ�ÒÚÛÙıˆ˜¯˘˙˚¸˝˛ˇ"
-  },
-  "ascii": {
-    "type": "_sbcs",
-    "chars": "��������������������������������������������������������������������������������������������������������������������������������"
-  },
-  "tis620": {
-    "type": "_sbcs",
-    "chars": "���������������������������������กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู����฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛����"
-  }
-}
-
-/***/ }),
-/* 716 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// Manually added data to be used by sbcs codec in addition to generated one.
-
-module.exports = {
-    // Not supported by iconv, not sure why.
-    "10029": "maccenteuro",
-    "maccenteuro": {
-        "type": "_sbcs",
-        "chars": "ÄĀāÉĄÖÜáąČäčĆć鏟ĎíďĒēĖóėôöõúĚěü†°Ę£§•¶ß®©™ę¨≠ģĮįĪ≤≥īĶ∂∑łĻļĽľĹĺŅņѬ√ńŇ∆«»… ňŐÕőŌ–—“”‘’÷◊ōŔŕŘ‹›řŖŗŠ‚„šŚśÁŤťÍŽžŪÓÔūŮÚůŰűŲųÝýķŻŁżĢˇ"
-    },
-
-    "808": "cp808",
-    "ibm808": "cp808",
-    "cp808": {
-        "type": "_sbcs",
-        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмноп░▒▓│┤╡╢╖╕╣║╗╝╜╛┐└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀рстуфхцчшщъыьэюяЁёЄєЇїЎў°∙·√№€■ "
-    },
-
-    "mik": {
-        "type": "_sbcs",
-        "chars": "АБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя└┴┬├─┼╣║╚╔╩╦╠═╬┐░▒▓│┤№§╗╝┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ "
-    },
-
-    // Aliases of generated encodings.
-    "ascii8bit": "ascii",
-    "usascii": "ascii",
-    "ansix34": "ascii",
-    "ansix341968": "ascii",
-    "ansix341986": "ascii",
-    "csascii": "ascii",
-    "cp367": "ascii",
-    "ibm367": "ascii",
-    "isoir6": "ascii",
-    "iso646us": "ascii",
-    "iso646irv": "ascii",
-    "us": "ascii",
-
-    "latin1": "iso88591",
-    "latin2": "iso88592",
-    "latin3": "iso88593",
-    "latin4": "iso88594",
-    "latin5": "iso88599",
-    "latin6": "iso885910",
-    "latin7": "iso885913",
-    "latin8": "iso885914",
-    "latin9": "iso885915",
-    "latin10": "iso885916",
-
-    "csisolatin1": "iso88591",
-    "csisolatin2": "iso88592",
-    "csisolatin3": "iso88593",
-    "csisolatin4": "iso88594",
-    "csisolatincyrillic": "iso88595",
-    "csisolatinarabic": "iso88596",
-    "csisolatingreek" : "iso88597",
-    "csisolatinhebrew": "iso88598",
-    "csisolatin5": "iso88599",
-    "csisolatin6": "iso885910",
-
-    "l1": "iso88591",
-    "l2": "iso88592",
-    "l3": "iso88593",
-    "l4": "iso88594",
-    "l5": "iso88599",
-    "l6": "iso885910",
-    "l7": "iso885913",
-    "l8": "iso885914",
-    "l9": "iso885915",
-    "l10": "iso885916",
-
-    "isoir14": "iso646jp",
-    "isoir57": "iso646cn",
-    "isoir100": "iso88591",
-    "isoir101": "iso88592",
-    "isoir109": "iso88593",
-    "isoir110": "iso88594",
-    "isoir144": "iso88595",
-    "isoir127": "iso88596",
-    "isoir126": "iso88597",
-    "isoir138": "iso88598",
-    "isoir148": "iso88599",
-    "isoir157": "iso885910",
-    "isoir166": "tis620",
-    "isoir179": "iso885913",
-    "isoir199": "iso885914",
-    "isoir203": "iso885915",
-    "isoir226": "iso885916",
-
-    "cp819": "iso88591",
-    "ibm819": "iso88591",
-
-    "cyrillic": "iso88595",
-
-    "arabic": "iso88596",
-    "arabic8": "iso88596",
-    "ecma114": "iso88596",
-    "asmo708": "iso88596",
-
-    "greek" : "iso88597",
-    "greek8" : "iso88597",
-    "ecma118" : "iso88597",
-    "elot928" : "iso88597",
-
-    "hebrew": "iso88598",
-    "hebrew8": "iso88598",
-
-    "turkish": "iso88599",
-    "turkish8": "iso88599",
-
-    "thai": "iso885911",
-    "thai8": "iso885911",
-
-    "celtic": "iso885914",
-    "celtic8": "iso885914",
-    "isoceltic": "iso885914",
-
-    "tis6200": "tis620",
-    "tis62025291": "tis620",
-    "tis62025330": "tis620",
-
-    "10000": "macroman",
-    "10006": "macgreek",
-    "10007": "maccyrillic",
-    "10079": "maciceland",
-    "10081": "macturkish",
-
-    "cspc8codepage437": "cp437",
-    "cspc775baltic": "cp775",
-    "cspc850multilingual": "cp850",
-    "cspcp852": "cp852",
-    "cspc862latinhebrew": "cp862",
-    "cpgr": "cp869",
-
-    "msee": "cp1250",
-    "mscyrl": "cp1251",
-    "msansi": "cp1252",
-    "msgreek": "cp1253",
-    "msturk": "cp1254",
-    "mshebr": "cp1255",
-    "msarab": "cp1256",
-    "winbaltrim": "cp1257",
-
-    "cp20866": "koi8r",
-    "20866": "koi8r",
-    "ibm878": "koi8r",
-    "cskoi8r": "koi8r",
-
-    "cp21866": "koi8u",
-    "21866": "koi8u",
-    "ibm1168": "koi8u",
-
-    "strk10482002": "rk1048",
-
-    "tcvn5712": "tcvn",
-    "tcvn57121": "tcvn",
-
-    "gb198880": "iso646cn",
-    "cn": "iso646cn",
-
-    "csiso14jisc6220ro": "iso646jp",
-    "jisc62201969ro": "iso646jp",
-    "jp": "iso646jp",
-
-    "cshproman8": "hproman8",
-    "r8": "hproman8",
-    "roman8": "hproman8",
-    "xroman8": "hproman8",
-    "ibm1051": "hproman8",
-
-    "mac": "macintosh",
-    "csmacintosh": "macintosh",
-};
-
-
-
-/***/ }),
-/* 717 */
-/***/ (function(module, exports) {
-
-module.exports = 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䁥"],["a0ae","矾"],["a0b0","糂𥼚糚稭聦聣絍甅瓲覔舚朌聢𧒆聛瓰脃眤覉𦟌畓𦻑螩蟎臈螌詉貭譃眫瓸蓚㘵榲趦"],["a0d4","覩瑨涹蟁𤀑瓧㷛煶悤憜㳑煢恷"],["a0e2","罱𨬭牐惩䭾删㰘𣳇𥻗𧙖𥔱𡥄𡋾𩤃𦷜𧂭峁𦆭𨨏𣙷𠃮𦡆𤼎䕢嬟𦍌齐麦𦉫"],["a3c0","␀",31,"␡"],["c6a1","①",9,"⑴",9,"ⅰ",9,"丶丿亅亠冂冖冫勹匸卩厶夊宀巛⼳广廴彐彡攴无疒癶辵隶¨ˆヽヾゝゞ〃仝々〆〇ー［］✽ぁ",23],["c740","す",58,"ァアィイ"],["c7a1","ゥ",81,"А",5,"ЁЖ",4],["c840","Л",26,"ёж",25,"⇧↸↹㇏𠃌乚𠂊刂䒑"],["c8a1","龰冈龱𧘇"],["c8cd","￢￤＇＂㈱№℡゛゜⺀⺄⺆⺇⺈⺊⺌⺍⺕⺜⺝⺥⺧⺪⺬⺮⺶⺼⺾⻆⻊⻌⻍⻏⻖⻗⻞⻣"],["c8f5","ʃɐɛɔɵœøŋʊɪ"],["f9fe","￭"],["fa40","𠕇鋛𠗟𣿅蕌䊵珯况㙉𤥂𨧤鍄𡧛苮𣳈砼杄拟𤤳𨦪𠊠𦮳𡌅侫𢓭倈𦴩𧪄𣘀𤪱𢔓倩𠍾徤𠎀𠍇滛𠐟偽儁㑺儎顬㝃萖𤦤𠒇兠𣎴兪𠯿𢃼𠋥𢔰𠖎𣈳𡦃宂蝽𠖳𣲙冲冸"],["faa1","鴴凉减凑㳜凓𤪦决凢卂凭菍椾𣜭彻刋刦刼劵剗劔効勅簕蕂勠蘍𦬓包𨫞啉滙𣾀𠥔𣿬匳卄𠯢泋𡜦栛珕恊㺪㣌𡛨燝䒢卭却𨚫卾卿𡖖𡘓矦厓𨪛厠厫厮玧𥝲㽙玜叁叅汉义埾叙㪫𠮏叠𣿫𢶣叶𠱷吓灹唫晗浛呭𦭓𠵴啝咏咤䞦𡜍𠻝㶴𠵍"],["fb40","𨦼𢚘啇䳭启琗喆喩嘅𡣗𤀺䕒𤐵暳𡂴嘷曍𣊊暤暭噍噏磱囱鞇叾圀囯园𨭦㘣𡉏坆𤆥汮炋坂㚱𦱾埦𡐖堃𡑔𤍣堦𤯵塜墪㕡壠壜𡈼壻寿坃𪅐𤉸鏓㖡够梦㛃湙"],["fba1","𡘾娤啓𡚒蔅姉𠵎𦲁𦴪𡟜姙𡟻𡞲𦶦浱𡠨𡛕姹𦹅媫婣㛦𤦩婷㜈媖瑥嫓𦾡𢕔㶅𡤑㜲𡚸広勐孶斈孼𧨎䀄䡝𠈄寕慠𡨴𥧌𠖥寳宝䴐尅𡭄尓珎尔𡲥𦬨屉䣝岅峩峯嶋𡷹𡸷崐崘嵆𡺤岺巗苼㠭𤤁𢁉𢅳芇㠶㯂帮檊幵幺𤒼𠳓厦亷廐厨𡝱帉廴𨒂"],["fc40","廹廻㢠廼栾鐛弍𠇁弢㫞䢮𡌺强𦢈𢏐彘𢑱彣鞽𦹮彲鍀𨨶徧嶶㵟𥉐𡽪𧃸𢙨釖𠊞𨨩怱暅𡡷㥣㷇㘹垐𢞴祱㹀悞悤悳𤦂𤦏𧩓璤僡媠慤萤慂慈𦻒憁凴𠙖憇宪𣾷"],["fca1","𢡟懓𨮝𩥝懐㤲𢦀𢣁怣慜攞掋𠄘担𡝰拕𢸍捬𤧟㨗搸揸𡎎𡟼撐澊𢸶頔𤂌𥜝擡擥鑻㩦携㩗敍漖𤨨𤨣斅敭敟𣁾斵𤥀䬷旑䃘𡠩无旣忟𣐀昘𣇷𣇸晄𣆤𣆥晋𠹵晧𥇦晳晴𡸽𣈱𨗴𣇈𥌓矅𢣷馤朂𤎜𤨡㬫槺𣟂杞杧杢𤇍𩃭柗䓩栢湐鈼栁𣏦𦶠桝"],["fd40","𣑯槡樋𨫟楳棃𣗍椁椀㴲㨁𣘼㮀枬楡𨩊䋼椶榘㮡𠏉荣傐槹𣙙𢄪橅𣜃檝㯳枱櫈𩆜㰍欝𠤣惞欵歴𢟍溵𣫛𠎵𡥘㝀吡𣭚毡𣻼毜氷𢒋𤣱𦭑汚舦汹𣶼䓅𣶽𤆤𤤌𤤀"],["fda1","𣳉㛥㳫𠴲鮃𣇹𢒑羏样𦴥𦶡𦷫涖浜湼漄𤥿𤂅𦹲蔳𦽴凇沜渝萮𨬡港𣸯瑓𣾂秌湏媑𣁋濸㜍澝𣸰滺𡒗𤀽䕕鏰潄潜㵎潴𩅰㴻澟𤅄濓𤂑𤅕𤀹𣿰𣾴𤄿凟𤅖𤅗𤅀𦇝灋灾炧炁烌烕烖烟䄄㷨熴熖𤉷焫煅媈煊煮岜𤍥煏鍢𤋁焬𤑚𤨧𤨢熺𨯨炽爎"],["fe40","鑂爕夑鑃爤鍁𥘅爮牀𤥴梽牕牗㹕𣁄栍漽犂猪猫𤠣𨠫䣭𨠄猨献珏玪𠰺𦨮珉瑉𤇢𡛧𤨤昣㛅𤦷𤦍𤧻珷琕椃𤨦琹𠗃㻗瑜𢢭瑠𨺲瑇珤瑶莹瑬㜰瑴鏱樬璂䥓𤪌"],["fea1","𤅟𤩹𨮏孆𨰃𡢞瓈𡦈甎瓩甞𨻙𡩋寗𨺬鎅畍畊畧畮𤾂㼄𤴓疎瑝疞疴瘂瘬癑癏癯癶𦏵皐臯㟸𦤑𦤎皡皥皷盌𦾟葢𥂝𥅽𡸜眞眦着撯𥈠睘𣊬瞯𨥤𨥨𡛁矴砉𡍶𤨒棊碯磇磓隥礮𥗠磗礴碱𧘌辸袄𨬫𦂃𢘜禆褀椂禀𥡗禝𧬹礼禩渪𧄦㺨秆𩄍秔"]]
-
-/***/ }),
-/* 718 */
-/***/ (function(module, exports) {
-
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-
-/***/ }),
-/* 719 */
-/***/ (function(module, exports) {
-
-module.exports = 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骿髁髃髆髈髎髐髒髕髖髗髛髜髠髤髥髧髩髬髲髳髵髹髺髽髿",4],["8feaa1","鬄鬅鬈鬉鬋鬌鬍鬎鬐鬒鬖鬙鬛鬜鬠鬦鬫鬭鬳鬴鬵鬷鬹鬺鬽魈魋魌魕魖魗魛魞魡魣魥魦魨魪",4,"魳魵魷魸魹魿鮀鮄鮅鮆鮇鮉鮊鮋鮍鮏鮐鮔鮚鮝鮞鮦鮧鮩鮬鮰鮱鮲鮷鮸鮻鮼鮾鮿鯁鯇鯈鯎鯐鯗鯘鯝鯟鯥鯧鯪鯫鯯鯳鯷鯸"],["8feba1","鯹鯺鯽鯿鰀鰂鰋鰏鰑鰖鰘鰙鰚鰜鰞鰢鰣鰦",4,"鰱鰵鰶鰷鰽鱁鱃鱄鱅鱉鱊鱎鱏鱐鱓鱔鱖鱘鱛鱝鱞鱟鱣鱩鱪鱜鱫鱨鱮鱰鱲鱵鱷鱻鳦鳲鳷鳹鴋鴂鴑鴗鴘鴜鴝鴞鴯鴰鴲鴳鴴鴺鴼鵅鴽鵂鵃鵇鵊鵓鵔鵟鵣鵢鵥鵩鵪鵫鵰鵶鵷鵻"],["8feca1","鵼鵾鶃鶄鶆鶊鶍鶎鶒鶓鶕鶖鶗鶘鶡鶪鶬鶮鶱鶵鶹鶼鶿鷃鷇鷉鷊鷔鷕鷖鷗鷚鷞鷟鷠鷥鷧鷩鷫鷮鷰鷳鷴鷾鸊鸂鸇鸎鸐鸑鸒鸕鸖鸙鸜鸝鹺鹻鹼麀麂麃麄麅麇麎麏麖麘麛麞麤麨麬麮麯麰麳麴麵黆黈黋黕黟黤黧黬黭黮黰黱黲黵"],["8feda1","黸黿鼂鼃鼉鼏鼐鼑鼒鼔鼖鼗鼙鼚鼛鼟鼢鼦鼪鼫鼯鼱鼲鼴鼷鼹鼺鼼鼽鼿齁齃",4,"齓齕齖齗齘齚齝齞齨齩齭",4,"齳齵齺齽龏龐龑龒龔龖龗龞龡龢龣龥"]]
-
-/***/ }),
-/* 720 */
-/***/ (function(module, exports) {
-
-module.exports = {"uChars":[128,165,169,178,184,216,226,235,238,244,248,251,253,258,276,284,300,325,329,334,364,463,465,467,469,471,473,475,477,506,594,610,712,716,730,930,938,962,970,1026,1104,1106,8209,8215,8218,8222,8231,8241,8244,8246,8252,8365,8452,8454,8458,8471,8482,8556,8570,8596,8602,8713,8720,8722,8726,8731,8737,8740,8742,8748,8751,8760,8766,8777,8781,8787,8802,8808,8816,8854,8858,8870,8896,8979,9322,9372,9548,9588,9616,9622,9634,9652,9662,9672,9676,9680,9702,9735,9738,9793,9795,11906,11909,11913,11917,11928,11944,11947,11951,11956,11960,11964,11979,12284,12292,12312,12319,12330,12351,12436,12447,12535,12543,12586,12842,12850,12964,13200,13215,13218,13253,13263,13267,13270,13384,13428,13727,13839,13851,14617,14703,14801,14816,14964,15183,15471,15585,16471,16736,17208,17325,17330,17374,17623,17997,18018,18212,18218,18301,18318,18760,18811,18814,18820,18823,18844,18848,18872,19576,19620,19738,19887,40870,59244,59336,59367,59413,59417,59423,59431,59437,59443,59452,59460,59478,59493,63789,63866,63894,63976,63986,64016,64018,64021,64025,64034,64037,64042,65074,65093,65107,65112,65127,65132,65375,65510,65536],"gbChars":[0,36,38,45,50,81,89,95,96,100,103,104,105,109,126,133,148,172,175,179,208,306,307,308,309,310,311,312,313,341,428,443,544,545,558,741,742,749,750,805,819,820,7922,7924,7925,7927,7934,7943,7944,7945,7950,8062,8148,8149,8152,8164,8174,8236,8240,8262,8264,8374,8380,8381,8384,8388,8390,8392,8393,8394,8396,8401,8406,8416,8419,8424,8437,8439,8445,8482,8485,8496,8521,8603,8936,8946,9046,9050,9063,9066,9076,9092,9100,9108,9111,9113,9131,9162,9164,9218,9219,11329,11331,11334,11336,11346,11361,11363,11366,11370,11372,11375,11389,11682,11686,11687,11692,11694,11714,11716,11723,11725,11730,11736,11982,11989,12102,12336,12348,12350,12384,12393,12395,12397,12510,12553,12851,12962,12973,13738,13823,13919,13933,14080,14298,14585,14698,15583,15847,16318,16434,16438,16481,16729,17102,17122,17315,17320,17402,17418,17859,17909,17911,17915,17916,17936,17939,17961,18664,18703,18814,18962,19043,33469,33470,33471,33484,33485,33490,33497,33501,33505,33513,33520,33536,33550,37845,37921,37948,38029,38038,38064,38065,38066,38069,38075,38076,38078,39108,39109,39113,39114,39115,39116,39265,39394,189000]}
-
-/***/ }),
-/* 721 */
-/***/ (function(module, exports) {
-
-module.exports = 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-// Note: UTF16-LE (or UCS2) codec is Node.js native. See encodings/internal.js
-
-// == UTF16-BE codec. ==========================================================
-
-exports.utf16be = Utf16BECodec;
-function Utf16BECodec() {
-}
-
-Utf16BECodec.prototype.encoder = Utf16BEEncoder;
-Utf16BECodec.prototype.decoder = Utf16BEDecoder;
-Utf16BECodec.prototype.bomAware = true;
-
-
-// -- Encoding
-
-function Utf16BEEncoder() {
-}
-
-Utf16BEEncoder.prototype.write = function(str) {
-    var buf = Buffer.from(str, 'ucs2');
-    for (var i = 0; i < buf.length; i += 2) {
-        var tmp = buf[i]; buf[i] = buf[i+1]; buf[i+1] = tmp;
-    }
-    return buf;
-}
-
-Utf16BEEncoder.prototype.end = function() {
-}
-
-
-// -- Decoding
-
-function Utf16BEDecoder() {
-    this.overflowByte = -1;
-}
-
-Utf16BEDecoder.prototype.write = function(buf) {
-    if (buf.length == 0)
-        return '';
-
-    var buf2 = Buffer.alloc(buf.length + 1),
-        i = 0, j = 0;
-
-    if (this.overflowByte !== -1) {
-        buf2[0] = buf[0];
-        buf2[1] = this.overflowByte;
-        i = 1; j = 2;
-    }
-
-    for (; i < buf.length-1; i += 2, j+= 2) {
-        buf2[j] = buf[i+1];
-        buf2[j+1] = buf[i];
-    }
-
-    this.overflowByte = (i == buf.length-1) ? buf[buf.length-1] : -1;
-
-    return buf2.slice(0, j).toString('ucs2');
-}
-
-Utf16BEDecoder.prototype.end = function() {
-}
-
-
-// == UTF-16 codec =============================================================
-// Decoder chooses automatically from UTF-16LE and UTF-16BE using BOM and space-based heuristic.
-// Defaults to UTF-16LE, as it's prevalent and default in Node.
-// http://en.wikipedia.org/wiki/UTF-16 and http://encoding.spec.whatwg.org/#utf-16le
-// Decoder default can be changed: iconv.decode(buf, 'utf16', {defaultEncoding: 'utf-16be'});
-
-// Encoder uses UTF-16LE and prepends BOM (which can be overridden with addBOM: false).
-
-exports.utf16 = Utf16Codec;
-function Utf16Codec(codecOptions, iconv) {
-    this.iconv = iconv;
-}
-
-Utf16Codec.prototype.encoder = Utf16Encoder;
-Utf16Codec.prototype.decoder = Utf16Decoder;
-
-
-// -- Encoding (pass-through)
-
-function Utf16Encoder(options, codec) {
-    options = options || {};
-    if (options.addBOM === undefined)
-        options.addBOM = true;
-    this.encoder = codec.iconv.getEncoder('utf-16le', options);
-}
-
-Utf16Encoder.prototype.write = function(str) {
-    return this.encoder.write(str);
-}
-
-Utf16Encoder.prototype.end = function() {
-    return this.encoder.end();
-}
-
-
-// -- Decoding
-
-function Utf16Decoder(options, codec) {
-    this.decoder = null;
-    this.initialBytes = [];
-    this.initialBytesLen = 0;
-
-    this.options = options || {};
-    this.iconv = codec.iconv;
-}
-
-Utf16Decoder.prototype.write = function(buf) {
-    if (!this.decoder) {
-        // Codec is not chosen yet. Accumulate initial bytes.
-        this.initialBytes.push(buf);
-        this.initialBytesLen += buf.length;
-        
-        if (this.initialBytesLen < 16) // We need more bytes to use space heuristic (see below)
-            return '';
-
-        // We have enough bytes -> detect endianness.
-        var buf = Buffer.concat(this.initialBytes),
-            encoding = detectEncoding(buf, this.options.defaultEncoding);
-        this.decoder = this.iconv.getDecoder(encoding, this.options);
-        this.initialBytes.length = this.initialBytesLen = 0;
-    }
-
-    return this.decoder.write(buf);
-}
-
-Utf16Decoder.prototype.end = function() {
-    if (!this.decoder) {
-        var buf = Buffer.concat(this.initialBytes),
-            encoding = detectEncoding(buf, this.options.defaultEncoding);
-        this.decoder = this.iconv.getDecoder(encoding, this.options);
-
-        var res = this.decoder.write(buf),
-            trail = this.decoder.end();
-
-        return trail ? (res + trail) : res;
-    }
-    return this.decoder.end();
-}
-
-function detectEncoding(buf, defaultEncoding) {
-    var enc = defaultEncoding || 'utf-16le';
-
-    if (buf.length >= 2) {
-        // Check BOM.
-        if (buf[0] == 0xFE && buf[1] == 0xFF) // UTF-16BE BOM
-            enc = 'utf-16be';
-        else if (buf[0] == 0xFF && buf[1] == 0xFE) // UTF-16LE BOM
-            enc = 'utf-16le';
-        else {
-            // No BOM found. Try to deduce encoding from initial content.
-            // Most of the time, the content has ASCII chars (U+00**), but the opposite (U+**00) is uncommon.
-            // So, we count ASCII as if it was LE or BE, and decide from that.
-            var asciiCharsLE = 0, asciiCharsBE = 0, // Counts of chars in both positions
-                _len = Math.min(buf.length - (buf.length % 2), 64); // Len is always even.
-
-            for (var i = 0; i < _len; i += 2) {
-                if (buf[i] === 0 && buf[i+1] !== 0) asciiCharsBE++;
-                if (buf[i] !== 0 && buf[i+1] === 0) asciiCharsLE++;
-            }
-
-            if (asciiCharsBE > asciiCharsLE)
-                enc = 'utf-16be';
-            else if (asciiCharsBE < asciiCharsLE)
-                enc = 'utf-16le';
-        }
-    }
-
-    return enc;
-}
-
-
-
-
-/***/ }),
-/* 723 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var Buffer = __webpack_require__(15).Buffer;
-
-// UTF-7 codec, according to https://tools.ietf.org/html/rfc2152
-// See also below a UTF-7-IMAP codec, according to http://tools.ietf.org/html/rfc3501#section-5.1.3
-
-exports.utf7 = Utf7Codec;
-exports.unicode11utf7 = 'utf7'; // Alias UNICODE-1-1-UTF-7
-function Utf7Codec(codecOptions, iconv) {
-    this.iconv = iconv;
-};
-
-Utf7Codec.prototype.encoder = Utf7Encoder;
-Utf7Codec.prototype.decoder = Utf7Decoder;
-Utf7Codec.prototype.bomAware = true;
-
-
-// -- Encoding
-
-var nonDirectChars = /[^A-Za-z0-9'\(\),-\.\/:\? \n\r\t]+/g;
-
-function Utf7Encoder(options, codec) {
-    this.iconv = codec.iconv;
-}
-
-Utf7Encoder.prototype.write = function(str) {
-    // Naive implementation.
-    // Non-direct chars are encoded as "+<base64>-"; single "+" char is encoded as "+-".
-    return Buffer.from(str.replace(nonDirectChars, function(chunk) {
-        return "+" + (chunk === '+' ? '' : 
-            this.iconv.encode(chunk, 'utf16-be').toString('base64').replace(/=+$/, '')) 
-            + "-";
-    }.bind(this)));
-}
-
-Utf7Encoder.prototype.end = function() {
-}
-
-
-// -- Decoding
-
-function Utf7Decoder(options, codec) {
-    this.iconv = codec.iconv;
-    this.inBase64 = false;
-    this.base64Accum = '';
-}
-
-var base64Regex = /[A-Za-z0-9\/+]/;
-var base64Chars = [];
-for (var i = 0; i < 256; i++)
-    base64Chars[i] = base64Regex.test(String.fromCharCode(i));
-
-var plusChar = '+'.charCodeAt(0), 
-    minusChar = '-'.charCodeAt(0),
-    andChar = '&'.charCodeAt(0);
-
-Utf7Decoder.prototype.write = function(buf) {
-    var res = "", lastI = 0,
-        inBase64 = this.inBase64,
-        base64Accum = this.base64Accum;
-
-    // The decoder is more involved as we must handle chunks in stream.
-
-    for (var i = 0; i < buf.length; i++) {
-        if (!inBase64) { // We're in direct mode.
-            // Write direct chars until '+'
-            if (buf[i] == plusChar) {
-                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
-                lastI = i+1;
-                inBase64 = true;
-            }
-        } else { // We decode base64.
-            if (!base64Chars[buf[i]]) { // Base64 ended.
-                if (i == lastI && buf[i] == minusChar) {// "+-" -> "+"
-                    res += "+";
-                } else {
-                    var b64str = base64Accum + buf.slice(lastI, i).toString();
-                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
-                }
-
-                if (buf[i] != minusChar) // Minus is absorbed after base64.
-                    i--;
-
-                lastI = i+1;
-                inBase64 = false;
-                base64Accum = '';
-            }
-        }
-    }
-
-    if (!inBase64) {
-        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
-    } else {
-        var b64str = base64Accum + buf.slice(lastI).toString();
-
-        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
-        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
-        b64str = b64str.slice(0, canBeDecoded);
-
-        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
-    }
-
-    this.inBase64 = inBase64;
-    this.base64Accum = base64Accum;
-
-    return res;
-}
-
-Utf7Decoder.prototype.end = function() {
-    var res = "";
-    if (this.inBase64 && this.base64Accum.length > 0)
-        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
-
-    this.inBase64 = false;
-    this.base64Accum = '';
-    return res;
-}
-
-
-// UTF-7-IMAP codec.
-// RFC3501 Sec. 5.1.3 Modified UTF-7 (http://tools.ietf.org/html/rfc3501#section-5.1.3)
-// Differences:
-//  * Base64 part is started by "&" instead of "+"
-//  * Direct characters are 0x20-0x7E, except "&" (0x26)
-//  * In Base64, "," is used instead of "/"
-//  * Base64 must not be used to represent direct characters.
-//  * No implicit shift back from Base64 (should always end with '-')
-//  * String must end in non-shifted position.
-//  * "-&" while in base64 is not allowed.
-
-
-exports.utf7imap = Utf7IMAPCodec;
-function Utf7IMAPCodec(codecOptions, iconv) {
-    this.iconv = iconv;
-};
-
-Utf7IMAPCodec.prototype.encoder = Utf7IMAPEncoder;
-Utf7IMAPCodec.prototype.decoder = Utf7IMAPDecoder;
-Utf7IMAPCodec.prototype.bomAware = true;
-
-
-// -- Encoding
-
-function Utf7IMAPEncoder(options, codec) {
-    this.iconv = codec.iconv;
-    this.inBase64 = false;
-    this.base64Accum = Buffer.alloc(6);
-    this.base64AccumIdx = 0;
-}
-
-Utf7IMAPEncoder.prototype.write = function(str) {
-    var inBase64 = this.inBase64,
-        base64Accum = this.base64Accum,
-        base64AccumIdx = this.base64AccumIdx,
-        buf = Buffer.alloc(str.length*5 + 10), bufIdx = 0;
-
-    for (var i = 0; i < str.length; i++) {
-        var uChar = str.charCodeAt(i);
-        if (0x20 <= uChar && uChar <= 0x7E) { // Direct character or '&'.
-            if (inBase64) {
-                if (base64AccumIdx > 0) {
-                    bufIdx += buf.write(base64Accum.slice(0, base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
-                    base64AccumIdx = 0;
-                }
-
-                buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
-                inBase64 = false;
-            }
-
-            if (!inBase64) {
-                buf[bufIdx++] = uChar; // Write direct character
-
-                if (uChar === andChar)  // Ampersand -> '&-'
-                    buf[bufIdx++] = minusChar;
-            }
-
-        } else { // Non-direct character
-            if (!inBase64) {
-                buf[bufIdx++] = andChar; // Write '&', then go to base64 mode.
-                inBase64 = true;
-            }
-            if (inBase64) {
-                base64Accum[base64AccumIdx++] = uChar >> 8;
-                base64Accum[base64AccumIdx++] = uChar & 0xFF;
-
-                if (base64AccumIdx == base64Accum.length) {
-                    bufIdx += buf.write(base64Accum.toString('base64').replace(/\//g, ','), bufIdx);
-                    base64AccumIdx = 0;
-                }
-            }
-        }
-    }
-
-    this.inBase64 = inBase64;
-    this.base64AccumIdx = base64AccumIdx;
-
-    return buf.slice(0, bufIdx);
-}
-
-Utf7IMAPEncoder.prototype.end = function() {
-    var buf = Buffer.alloc(10), bufIdx = 0;
-    if (this.inBase64) {
-        if (this.base64AccumIdx > 0) {
-            bufIdx += buf.write(this.base64Accum.slice(0, this.base64AccumIdx).toString('base64').replace(/\//g, ',').replace(/=+$/, ''), bufIdx);
-            this.base64AccumIdx = 0;
-        }
-
-        buf[bufIdx++] = minusChar; // Write '-', then go to direct mode.
-        this.inBase64 = false;
-    }
-
-    return buf.slice(0, bufIdx);
-}
-
-
-// -- Decoding
-
-function Utf7IMAPDecoder(options, codec) {
-    this.iconv = codec.iconv;
-    this.inBase64 = false;
-    this.base64Accum = '';
-}
-
-var base64IMAPChars = base64Chars.slice();
-base64IMAPChars[','.charCodeAt(0)] = true;
-
-Utf7IMAPDecoder.prototype.write = function(buf) {
-    var res = "", lastI = 0,
-        inBase64 = this.inBase64,
-        base64Accum = this.base64Accum;
-
-    // The decoder is more involved as we must handle chunks in stream.
-    // It is forgiving, closer to standard UTF-7 (for example, '-' is optional at the end).
-
-    for (var i = 0; i < buf.length; i++) {
-        if (!inBase64) { // We're in direct mode.
-            // Write direct chars until '&'
-            if (buf[i] == andChar) {
-                res += this.iconv.decode(buf.slice(lastI, i), "ascii"); // Write direct chars.
-                lastI = i+1;
-                inBase64 = true;
-            }
-        } else { // We decode base64.
-            if (!base64IMAPChars[buf[i]]) { // Base64 ended.
-                if (i == lastI && buf[i] == minusChar) { // "&-" -> "&"
-                    res += "&";
-                } else {
-                    var b64str = base64Accum + buf.slice(lastI, i).toString().replace(/,/g, '/');
-                    res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
-                }
-
-                if (buf[i] != minusChar) // Minus may be absorbed after base64.
-                    i--;
-
-                lastI = i+1;
-                inBase64 = false;
-                base64Accum = '';
-            }
-        }
-    }
-
-    if (!inBase64) {
-        res += this.iconv.decode(buf.slice(lastI), "ascii"); // Write direct chars.
-    } else {
-        var b64str = base64Accum + buf.slice(lastI).toString().replace(/,/g, '/');
-
-        var canBeDecoded = b64str.length - (b64str.length % 8); // Minimal chunk: 2 quads -> 2x3 bytes -> 3 chars.
-        base64Accum = b64str.slice(canBeDecoded); // The rest will be decoded in future.
-        b64str = b64str.slice(0, canBeDecoded);
-
-        res += this.iconv.decode(Buffer.from(b64str, 'base64'), "utf16-be");
-    }
-
-    this.inBase64 = inBase64;
-    this.base64Accum = base64Accum;
-
-    return res;
-}
-
-Utf7IMAPDecoder.prototype.end = function() {
-    var res = "";
-    if (this.inBase64 && this.base64Accum.length > 0)
-        res = this.iconv.decode(Buffer.from(this.base64Accum, 'base64'), "utf16-be");
-
-    this.inBase64 = false;
-    this.base64Accum = '';
-    return res;
-}
-
-
-
-
-/***/ }),
-/* 724 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var BOMChar = '\uFEFF';
-
-exports.PrependBOM = PrependBOMWrapper
-function PrependBOMWrapper(encoder, options) {
-    this.encoder = encoder;
-    this.addBOM = true;
-}
-
-PrependBOMWrapper.prototype.write = function(str) {
-    if (this.addBOM) {
-        str = BOMChar + str;
-        this.addBOM = false;
-    }
-
-    return this.encoder.write(str);
-}
-
-PrependBOMWrapper.prototype.end = function() {
-    return this.encoder.end();
-}
-
-
-//------------------------------------------------------------------------------
-
-exports.StripBOM = StripBOMWrapper;
-function StripBOMWrapper(decoder, options) {
-    this.decoder = decoder;
-    this.pass = false;
-    this.options = options || {};
-}
-
-StripBOMWrapper.prototype.write = function(buf) {
-    var res = this.decoder.write(buf);
-    if (this.pass || !res)
-        return res;
-
-    if (res[0] === BOMChar) {
-        res = res.slice(1);
-        if (typeof this.options.stripBOM === 'function')
-            this.options.stripBOM();
-    }
-
-    this.pass = true;
-    return res;
-}
-
-StripBOMWrapper.prototype.end = function() {
-    return this.decoder.end();
-}
-
-
-
-/***/ }),
-/* 725 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var Buffer = __webpack_require__(64).Buffer;
-// Note: not polyfilled with safer-buffer on a purpose, as overrides Buffer
-
-// == Extend Node primitives to use iconv-lite =================================
-
-module.exports = function (iconv) {
-    var original = undefined; // Place to keep original methods.
-
-    // Node authors rewrote Buffer internals to make it compatible with
-    // Uint8Array and we cannot patch key functions since then.
-    // Note: this does use older Buffer API on a purpose
-    iconv.supportsNodeEncodingsExtension = !(Buffer.from || new Buffer(0) instanceof Uint8Array);
-
-    iconv.extendNodeEncodings = function extendNodeEncodings() {
-        if (original) return;
-        original = {};
-
-        if (!iconv.supportsNodeEncodingsExtension) {
-            console.error("ACTION NEEDED: require('iconv-lite').extendNodeEncodings() is not supported in your version of Node");
-            console.error("See more info at https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility");
-            return;
-        }
-
-        var nodeNativeEncodings = {
-            'hex': true, 'utf8': true, 'utf-8': true, 'ascii': true, 'binary': true, 
-            'base64': true, 'ucs2': true, 'ucs-2': true, 'utf16le': true, 'utf-16le': true,
-        };
-
-        Buffer.isNativeEncoding = function(enc) {
-            return enc && nodeNativeEncodings[enc.toLowerCase()];
-        }
-
-        // -- SlowBuffer -----------------------------------------------------------
-        var SlowBuffer = __webpack_require__(64).SlowBuffer;
-
-        original.SlowBufferToString = SlowBuffer.prototype.toString;
-        SlowBuffer.prototype.toString = function(encoding, start, end) {
-            encoding = String(encoding || 'utf8').toLowerCase();
-
-            // Use native conversion when possible
-            if (Buffer.isNativeEncoding(encoding))
-                return original.SlowBufferToString.call(this, encoding, start, end);
-
-            // Otherwise, use our decoding method.
-            if (typeof start == 'undefined') start = 0;
-            if (typeof end == 'undefined') end = this.length;
-            return iconv.decode(this.slice(start, end), encoding);
-        }
-
-        original.SlowBufferWrite = SlowBuffer.prototype.write;
-        SlowBuffer.prototype.write = function(string, offset, length, encoding) {
-            // Support both (string, offset, length, encoding)
-            // and the legacy (string, encoding, offset, length)
-            if (isFinite(offset)) {
-                if (!isFinite(length)) {
-                    encoding = length;
-                    length = undefined;
-                }
-            } else {  // legacy
-                var swap = encoding;
-                encoding = offset;
-                offset = length;
-                length = swap;
-            }
-
-            offset = +offset || 0;
-            var remaining = this.length - offset;
-            if (!length) {
-                length = remaining;
-            } else {
-                length = +length;
-                if (length > remaining) {
-                    length = remaining;
-                }
-            }
-            encoding = String(encoding || 'utf8').toLowerCase();
-
-            // Use native conversion when possible
-            if (Buffer.isNativeEncoding(encoding))
-                return original.SlowBufferWrite.call(this, string, offset, length, encoding);
-
-            if (string.length > 0 && (length < 0 || offset < 0))
-                throw new RangeError('attempt to write beyond buffer bounds');
-
-            // Otherwise, use our encoding method.
-            var buf = iconv.encode(string, encoding);
-            if (buf.length < length) length = buf.length;
-            buf.copy(this, offset, 0, length);
-            return length;
-        }
-
-        // -- Buffer ---------------------------------------------------------------
-
-        original.BufferIsEncoding = Buffer.isEncoding;
-        Buffer.isEncoding = function(encoding) {
-            return Buffer.isNativeEncoding(encoding) || iconv.encodingExists(encoding);
-        }
-
-        original.BufferByteLength = Buffer.byteLength;
-        Buffer.byteLength = SlowBuffer.byteLength = function(str, encoding) {
-            encoding = String(encoding || 'utf8').toLowerCase();
-
-            // Use native conversion when possible
-            if (Buffer.isNativeEncoding(encoding))
-                return original.BufferByteLength.call(this, str, encoding);
-
-            // Slow, I know, but we don't have a better way yet.
-            return iconv.encode(str, encoding).length;
-        }
-
-        original.BufferToString = Buffer.prototype.toString;
-        Buffer.prototype.toString = function(encoding, start, end) {
-            encoding = String(encoding || 'utf8').toLowerCase();
-
-            // Use native conversion when possible
-            if (Buffer.isNativeEncoding(encoding))
-                return original.BufferToString.call(this, encoding, start, end);
-
-            // Otherwise, use our decoding method.
-            if (typeof start == 'undefined') start = 0;
-            if (typeof end == 'undefined') end = this.length;
-            return iconv.decode(this.slice(start, end), encoding);
-        }
-
-        original.BufferWrite = Buffer.prototype.write;
-        Buffer.prototype.write = function(string, offset, length, encoding) {
-            var _offset = offset, _length = length, _encoding = encoding;
-            // Support both (string, offset, length, encoding)
-            // and the legacy (string, encoding, offset, length)
-            if (isFinite(offset)) {
-                if (!isFinite(length)) {
-                    encoding = length;
-                    length = undefined;
-                }
-            } else {  // legacy
-                var swap = encoding;
-                encoding = offset;
-                offset = length;
-                length = swap;
-            }
-
-            encoding = String(encoding || 'utf8').toLowerCase();
-
-            // Use native conversion when possible
-            if (Buffer.isNativeEncoding(encoding))
-                return original.BufferWrite.call(this, string, _offset, _length, _encoding);
-
-            offset = +offset || 0;
-            var remaining = this.length - offset;
-            if (!length) {
-                length = remaining;
-            } else {
-                length = +length;
-                if (length > remaining) {
-                    length = remaining;
-                }
-            }
-
-            if (string.length > 0 && (length < 0 || offset < 0))
-                throw new RangeError('attempt to write beyond buffer bounds');
-
-            // Otherwise, use our encoding method.
-            var buf = iconv.encode(string, encoding);
-            if (buf.length < length) length = buf.length;
-            buf.copy(this, offset, 0, length);
-            return length;
-
-            // TODO: Set _charsWritten.
-        }
-
-
-        // -- Readable -------------------------------------------------------------
-        if (iconv.supportsStreams) {
-            var Readable = __webpack_require__(23).Readable;
-
-            original.ReadableSetEncoding = Readable.prototype.setEncoding;
-            Readable.prototype.setEncoding = function setEncoding(enc, options) {
-                // Use our own decoder, it has the same interface.
-                // We cannot use original function as it doesn't handle BOM-s.
-                this._readableState.decoder = iconv.getDecoder(enc, options);
-                this._readableState.encoding = enc;
-            }
-
-            Readable.prototype.collect = iconv._collect;
-        }
-    }
-
-    // Remove iconv-lite Node primitive extensions.
-    iconv.undoExtendNodeEncodings = function undoExtendNodeEncodings() {
-        if (!iconv.supportsNodeEncodingsExtension)
-            return;
-        if (!original)
-            throw new Error("require('iconv-lite').undoExtendNodeEncodings(): Nothing to undo; extendNodeEncodings() is not called.")
-
-        delete Buffer.isNativeEncoding;
-
-        var SlowBuffer = __webpack_require__(64).SlowBuffer;
-
-        SlowBuffer.prototype.toString = original.SlowBufferToString;
-        SlowBuffer.prototype.write = original.SlowBufferWrite;
-
-        Buffer.isEncoding = original.BufferIsEncoding;
-        Buffer.byteLength = original.BufferByteLength;
-        Buffer.prototype.toString = original.BufferToString;
-        Buffer.prototype.write = original.BufferWrite;
-
-        if (iconv.supportsStreams) {
-            var Readable = __webpack_require__(23).Readable;
-
-            Readable.prototype.setEncoding = original.ReadableSetEncoding;
-            delete Readable.prototype.collect;
-        }
-
-        original = undefined;
-    }
-}
-
-
-/***/ }),
-/* 726 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// Some environments don't have global Buffer (e.g. React Native).
-// Solution would be installing npm modules "buffer" and "stream" explicitly.
-var Buffer = __webpack_require__(15).Buffer;
-
-var bomHandling = __webpack_require__(724),
-    iconv = module.exports;
-
-// All codecs and aliases are kept here, keyed by encoding name/alias.
-// They are lazy loaded in `iconv.getCodec` from `encodings/index.js`.
-iconv.encodings = null;
-
-// Characters emitted in case of error.
-iconv.defaultCharUnicode = '�';
-iconv.defaultCharSingleByte = '?';
-
-// Public API.
-iconv.encode = function encode(str, encoding, options) {
-    str = "" + (str || ""); // Ensure string.
-
-    var encoder = iconv.getEncoder(encoding, options);
-
-    var res = encoder.write(str);
-    var trail = encoder.end();
-    
-    return (trail && trail.length > 0) ? Buffer.concat([res, trail]) : res;
-}
-
-iconv.decode = function decode(buf, encoding, options) {
-    if (typeof buf === 'string') {
-        if (!iconv.skipDecodeWarning) {
-            console.error('Iconv-lite warning: decode()-ing strings is deprecated. Refer to https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding');
-            iconv.skipDecodeWarning = true;
-        }
-
-        buf = Buffer.from("" + (buf || ""), "binary"); // Ensure buffer.
-    }
-
-    var decoder = iconv.getDecoder(encoding, options);
-
-    var res = decoder.write(buf);
-    var trail = decoder.end();
-
-    return trail ? (res + trail) : res;
-}
-
-iconv.encodingExists = function encodingExists(enc) {
-    try {
-        iconv.getCodec(enc);
-        return true;
-    } catch (e) {
-        return false;
-    }
-}
-
-// Legacy aliases to convert functions
-iconv.toEncoding = iconv.encode;
-iconv.fromEncoding = iconv.decode;
-
-// Search for a codec in iconv.encodings. Cache codec data in iconv._codecDataCache.
-iconv._codecDataCache = {};
-iconv.getCodec = function getCodec(encoding) {
-    if (!iconv.encodings)
-        iconv.encodings = __webpack_require__(712); // Lazy load all encoding definitions.
-    
-    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
-    var enc = iconv._canonicalizeEncoding(encoding);
-
-    // Traverse iconv.encodings to find actual codec.
-    var codecOptions = {};
-    while (true) {
-        var codec = iconv._codecDataCache[enc];
-        if (codec)
-            return codec;
-
-        var codecDef = iconv.encodings[enc];
-
-        switch (typeof codecDef) {
-            case "string": // Direct alias to other encoding.
-                enc = codecDef;
-                break;
-
-            case "object": // Alias with options. Can be layered.
-                for (var key in codecDef)
-                    codecOptions[key] = codecDef[key];
-
-                if (!codecOptions.encodingName)
-                    codecOptions.encodingName = enc;
-                
-                enc = codecDef.type;
-                break;
-
-            case "function": // Codec itself.
-                if (!codecOptions.encodingName)
-                    codecOptions.encodingName = enc;
-
-                // The codec function must load all tables and return object with .encoder and .decoder methods.
-                // It'll be called only once (for each different options object).
-                codec = new codecDef(codecOptions, iconv);
-
-                iconv._codecDataCache[codecOptions.encodingName] = codec; // Save it to be reused later.
-                return codec;
-
-            default:
-                throw new Error("Encoding not recognized: '" + encoding + "' (searched as: '"+enc+"')");
-        }
-    }
-}
-
-iconv._canonicalizeEncoding = function(encoding) {
-    // Canonicalize encoding name: strip all non-alphanumeric chars and appended year.
-    return (''+encoding).toLowerCase().replace(/:\d{4}$|[^0-9a-z]/g, "");
-}
-
-iconv.getEncoder = function getEncoder(encoding, options) {
-    var codec = iconv.getCodec(encoding),
-        encoder = new codec.encoder(options, codec);
-
-    if (codec.bomAware && options && options.addBOM)
-        encoder = new bomHandling.PrependBOM(encoder, options);
-
-    return encoder;
-}
-
-iconv.getDecoder = function getDecoder(encoding, options) {
-    var codec = iconv.getCodec(encoding),
-        decoder = new codec.decoder(options, codec);
-
-    if (codec.bomAware && !(options && options.stripBOM === false))
-        decoder = new bomHandling.StripBOM(decoder, options);
-
-    return decoder;
-}
-
-
-// Load extensions in Node. All of them are omitted in Browserify build via 'browser' field in package.json.
-var nodeVer = typeof process !== 'undefined' && process.versions && process.versions.node;
-if (nodeVer) {
-
-    // Load streaming support in Node v0.10+
-    var nodeVerArr = nodeVer.split(".").map(Number);
-    if (nodeVerArr[0] > 0 || nodeVerArr[1] >= 10) {
-        __webpack_require__(727)(iconv);
-    }
-
-    // Load Node primitive extensions.
-    __webpack_require__(725)(iconv);
-}
-
-if (false) {
-    console.error("iconv-lite warning: javascript files use encoding different from utf-8. See https://github.com/ashtuchkin/iconv-lite/wiki/Javascript-source-file-encodings for more info.");
-}
-
-
-/***/ }),
-/* 727 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var Buffer = __webpack_require__(64).Buffer,
-    Transform = __webpack_require__(23).Transform;
-
-
-// == Exports ==================================================================
-module.exports = function(iconv) {
-    
-    // Additional Public API.
-    iconv.encodeStream = function encodeStream(encoding, options) {
-        return new IconvLiteEncoderStream(iconv.getEncoder(encoding, options), options);
-    }
-
-    iconv.decodeStream = function decodeStream(encoding, options) {
-        return new IconvLiteDecoderStream(iconv.getDecoder(encoding, options), options);
-    }
-
-    iconv.supportsStreams = true;
-
-
-    // Not published yet.
-    iconv.IconvLiteEncoderStream = IconvLiteEncoderStream;
-    iconv.IconvLiteDecoderStream = IconvLiteDecoderStream;
-    iconv._collect = IconvLiteDecoderStream.prototype.collect;
-};
-
-
-// == Encoder stream =======================================================
-function IconvLiteEncoderStream(conv, options) {
-    this.conv = conv;
-    options = options || {};
-    options.decodeStrings = false; // We accept only strings, so we don't need to decode them.
-    Transform.call(this, options);
-}
-
-IconvLiteEncoderStream.prototype = Object.create(Transform.prototype, {
-    constructor: { value: IconvLiteEncoderStream }
-});
-
-IconvLiteEncoderStream.prototype._transform = function(chunk, encoding, done) {
-    if (typeof chunk != 'string')
-        return done(new Error("Iconv encoding stream needs strings as its input."));
-    try {
-        var res = this.conv.write(chunk);
-        if (res && res.length) this.push(res);
-        done();
-    }
-    catch (e) {
-        done(e);
-    }
-}
-
-IconvLiteEncoderStream.prototype._flush = function(done) {
-    try {
-        var res = this.conv.end();
-        if (res && res.length) this.push(res);
-        done();
-    }
-    catch (e) {
-        done(e);
-    }
-}
-
-IconvLiteEncoderStream.prototype.collect = function(cb) {
-    var chunks = [];
-    this.on('error', cb);
-    this.on('data', function(chunk) { chunks.push(chunk); });
-    this.on('end', function() {
-        cb(null, Buffer.concat(chunks));
-    });
-    return this;
-}
-
-
-// == Decoder stream =======================================================
-function IconvLiteDecoderStream(conv, options) {
-    this.conv = conv;
-    options = options || {};
-    options.encoding = this.encoding = 'utf8'; // We output strings.
-    Transform.call(this, options);
-}
-
-IconvLiteDecoderStream.prototype = Object.create(Transform.prototype, {
-    constructor: { value: IconvLiteDecoderStream }
-});
-
-IconvLiteDecoderStream.prototype._transform = function(chunk, encoding, done) {
-    if (!Buffer.isBuffer(chunk))
-        return done(new Error("Iconv decoding stream needs buffers as its input."));
-    try {
-        var res = this.conv.write(chunk);
-        if (res && res.length) this.push(res, this.encoding);
-        done();
-    }
-    catch (e) {
-        done(e);
-    }
-}
-
-IconvLiteDecoderStream.prototype._flush = function(done) {
-    try {
-        var res = this.conv.end();
-        if (res && res.length) this.push(res, this.encoding);                
-        done();
-    }
-    catch (e) {
-        done(e);
-    }
-}
-
-IconvLiteDecoderStream.prototype.collect = function(cb) {
-    var res = '';
-    this.on('error', cb);
-    this.on('data', function(chunk) { res += chunk; });
-    this.on('end', function() {
-        cb(null, res);
-    });
-    return this;
-}
-
-
-
-/***/ }),
-/* 728 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const stripAnsi = __webpack_require__(329);
-const isFullwidthCodePoint = __webpack_require__(736);
-
-module.exports = str => {
-	if (typeof str !== 'string' || str.length === 0) {
-		return 0;
-	}
-
-	str = stripAnsi(str);
-
-	let width = 0;
-
-	for (let i = 0; i < str.length; i++) {
-		const code = str.codePointAt(i);
-
-		// Ignore control characters
-		if (code <= 0x1F || (code >= 0x7F && code <= 0x9F)) {
-			continue;
-		}
-
-		// Ignore combining characters
-		if (code >= 0x300 && code <= 0x36F) {
-			continue;
-		}
-
-		// Surrogates
-		if (code > 0xFFFF) {
-			i++;
-		}
-
-		width += isFullwidthCodePoint(code) ? 2 : 1;
-	}
-
-	return width;
-};
-
-
-/***/ }),
-/* 729 */
-/***/ (function(module, exports) {
-
-/*!
- * Determine if an object is a Buffer
- *
- * @author   Feross Aboukhadijeh <https://feross.org>
- * @license  MIT
- */
-
-// The _isBuffer check is for Safari 5-7 support, because it's missing
-// Object.prototype.constructor. Remove this eventually
-module.exports = function (obj) {
-  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
-}
-
-function isBuffer (obj) {
-  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
-}
-
-// For Node v0.10 support. Remove this eventually.
-function isSlowBuffer (obj) {
-  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
-}
-
-
-/***/ }),
-/* 730 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const builtinModules = __webpack_require__(731);
-
-const moduleSet = new Set(builtinModules);
-
-module.exports = moduleName => {
-	if (typeof moduleName !== 'string') {
-		throw new TypeError('Expected a string');
-	}
-
-	return moduleSet.has(moduleName);
-};
-
-
-/***/ }),
-/* 731 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-const blacklist = [
-	'freelist',
-	'sys'
-];
-
-module.exports = Object.keys(process.binding('natives'))
-	.filter(x => !/^_|^internal|\//.test(x) && blacklist.indexOf(x) === -1)
-	.sort();
-
-
-/***/ }),
-/* 732 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-module.exports = function (buf) {
-  if (!buf || buf.length < 2) return false
-  return buf[0] === 0x78 && (buf[1] === 1 || buf[1] === 0x9c || buf[1] === 0xda)
-}
-
-
-/***/ }),
-/* 733 */
-/***/ (function(module, exports) {
-
-/*!
- * is-dotfile <https://github.com/jonschlinkert/is-dotfile>
- *
- * Copyright (c) 2015-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-module.exports = function(str) {
-  if (str.charCodeAt(0) === 46 /* . */ && str.indexOf('/', 1) === -1) {
-    return true;
-  }
-  var slash = str.lastIndexOf('/');
-  return slash !== -1 ? str.charCodeAt(slash + 1) === 46  /* . */ : false;
-};
-
-
-/***/ }),
-/* 734 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * is-equal-shallow <https://github.com/jonschlinkert/is-equal-shallow>
- *
- * Copyright (c) 2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var isPrimitive = __webpack_require__(740);
-
-module.exports = function isEqual(a, b) {
-  if (!a && !b) { return true; }
-  if (!a && b || a && !b) { return false; }
-
-  var numKeysA = 0, numKeysB = 0, key;
-  for (key in b) {
-    numKeysB++;
-    if (!isPrimitive(b[key]) || !a.hasOwnProperty(key) || (a[key] !== b[key])) {
-      return false;
-    }
-  }
-  for (key in a) {
-    numKeysA++;
-  }
-  return numKeysA === numKeysB;
-};
-
-
-/***/ }),
-/* 735 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * is-extendable <https://github.com/jonschlinkert/is-extendable>
- *
- * Copyright (c) 2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-module.exports = function isExtendable(val) {
-  return typeof val !== 'undefined' && val !== null
-    && (typeof val === 'object' || typeof val === 'function');
-};
-
-
-/***/ }),
-/* 736 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-/* eslint-disable yoda */
-module.exports = x => {
-	if (Number.isNaN(x)) {
-		return false;
-	}
-
-	// code points are derived from:
-	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
-	if (
-		x >= 0x1100 && (
-			x <= 0x115f ||  // Hangul Jamo
-			x === 0x2329 || // LEFT-POINTING ANGLE BRACKET
-			x === 0x232a || // RIGHT-POINTING ANGLE BRACKET
-			// CJK Radicals Supplement .. Enclosed CJK Letters and Months
-			(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
-			// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
-			(0x3250 <= x && x <= 0x4dbf) ||
-			// CJK Unified Ideographs .. Yi Radicals
-			(0x4e00 <= x && x <= 0xa4c6) ||
-			// Hangul Jamo Extended-A
-			(0xa960 <= x && x <= 0xa97c) ||
-			// Hangul Syllables
-			(0xac00 <= x && x <= 0xd7a3) ||
-			// CJK Compatibility Ideographs
-			(0xf900 <= x && x <= 0xfaff) ||
-			// Vertical Forms
-			(0xfe10 <= x && x <= 0xfe19) ||
-			// CJK Compatibility Forms .. Small Form Variants
-			(0xfe30 <= x && x <= 0xfe6b) ||
-			// Halfwidth and Fullwidth Forms
-			(0xff01 <= x && x <= 0xff60) ||
-			(0xffe0 <= x && x <= 0xffe6) ||
-			// Kana Supplement
-			(0x1b000 <= x && x <= 0x1b001) ||
-			// Enclosed Ideographic Supplement
-			(0x1f200 <= x && x <= 0x1f251) ||
-			// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
-			(0x20000 <= x && x <= 0x3fffd)
-		)
-	) {
-		return true;
-	}
-
-	return false;
-};
-
-
-/***/ }),
-/* 737 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/**
- * Check if a Buffer/Uint8Array is a GZIP file
- *
- * @param {Buffer} buf
- * @api public
- */
-
-module.exports = function (buf) {
-    if (!buf || buf.length < 3) {
-        return false;
-    }
-
-    return buf[0] === 31 && buf[1] === 139 && buf[2] === 8;
-};
-
-
-/***/ }),
-/* 738 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var toString = Object.prototype.toString;
-
-module.exports = function (x) {
-	var prototype;
-	return toString.call(x) === '[object Object]' && (prototype = Object.getPrototypeOf(x), prototype === null || prototype === Object.getPrototypeOf({}));
-};
-
-
-/***/ }),
-/* 739 */
-/***/ (function(module, exports) {
-
-/*!
- * is-posix-bracket <https://github.com/jonschlinkert/is-posix-bracket>
- *
- * Copyright (c) 2015-2016, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-module.exports = function isPosixBracket(str) {
-  return typeof str === 'string' && /\[([:.=+])(?:[^\[\]]|)+\1\]/.test(str);
-};
-
-
-/***/ }),
-/* 740 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * is-primitive <https://github.com/jonschlinkert/is-primitive>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-// see http://jsperf.com/testing-value-is-primitive/7
-module.exports = function isPrimitive(value) {
-  return value == null || (typeof value !== 'function' && typeof value !== 'object');
-};
-
-
-/***/ }),
-/* 741 */
-/***/ (function(module, exports) {
-
-module.exports = isPromise;
-
-function isPromise(obj) {
-  return !!obj && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
-}
-
-
-/***/ }),
-/* 742 */
-/***/ (function(module, exports) {
-
-module.exports      = isTypedArray
-isTypedArray.strict = isStrictTypedArray
-isTypedArray.loose  = isLooseTypedArray
-
-var toString = Object.prototype.toString
-var names = {
-    '[object Int8Array]': true
-  , '[object Int16Array]': true
-  , '[object Int32Array]': true
-  , '[object Uint8Array]': true
-  , '[object Uint8ClampedArray]': true
-  , '[object Uint16Array]': true
-  , '[object Uint32Array]': true
-  , '[object Float32Array]': true
-  , '[object Float64Array]': true
-}
-
-function isTypedArray(arr) {
-  return (
-       isStrictTypedArray(arr)
-    || isLooseTypedArray(arr)
-  )
-}
-
-function isStrictTypedArray(arr) {
-  return (
-       arr instanceof Int8Array
-    || arr instanceof Int16Array
-    || arr instanceof Int32Array
-    || arr instanceof Uint8Array
-    || arr instanceof Uint8ClampedArray
-    || arr instanceof Uint16Array
-    || arr instanceof Uint32Array
-    || arr instanceof Float32Array
-    || arr instanceof Float64Array
-  )
-}
-
-function isLooseTypedArray(arr) {
-  return names[toString.call(arr)]
-}
-
-
-/***/ }),
-/* 743 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
- * is-windows <https://github.com/jonschlinkert/is-windows>
- *
- * Copyright © 2015-2018, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-(function(factory) {
-  if (exports && typeof exports === 'object' && typeof module !== 'undefined') {
-    module.exports = factory();
-  } else if (true) {
-    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
-				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
-				(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
-				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-  } else if (typeof window !== 'undefined') {
-    window.isWindows = factory();
-  } else if (typeof global !== 'undefined') {
-    global.isWindows = factory();
-  } else if (typeof self !== 'undefined') {
-    self.isWindows = factory();
-  } else {
-    this.isWindows = factory();
-  }
-})(function() {
-  'use strict';
-  return function isWindows() {
-    return process && (process.platform === 'win32' || /^(msys|cygwin)$/.test(process.env.OSTYPE));
-  };
-});
-
-
-/***/ }),
-/* 744 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/**
- * JSONSchema Validator - Validates JavaScript objects using JSON Schemas
- *	(http://www.json.com/json-schema-proposal/)
- *
- * Copyright (c) 2007 Kris Zyp SitePen (www.sitepen.com)
- * Licensed under the MIT (MIT-LICENSE.txt) license.
-To use the validator call the validate function with an instance object and an optional schema object.
-If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating),
-that schema will be used to validate and the schema parameter is not necessary (if both exist,
-both validations will occur).
-The validate method will return an array of validation errors. If there are no errors, then an
-empty list will be returned. A validation error will have two properties:
-"property" which indicates which property had the error
-"message" which indicates what the error was
- */
-(function (root, factory) {
-    if (true) {
-        // AMD. Register as an anonymous module.
-        !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = function () {
-            return factory();
-        }.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
-				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
-    } else if (typeof module === 'object' && module.exports) {
-        // Node. Does not work with strict CommonJS, but
-        // only CommonJS-like environments that support module.exports,
-        // like Node.
-        module.exports = factory();
-    } else {
-        // Browser globals
-        root.jsonSchema = factory();
-    }
-}(this, function () {// setup primitive classes to be JSON Schema types
-var exports = validate
-exports.Integer = {type:"integer"};
-var primitiveConstructors = {
-	String: String,
-	Boolean: Boolean,
-	Number: Number,
-	Object: Object,
-	Array: Array,
-	Date: Date
-}
-exports.validate = validate;
-function validate(/*Any*/instance,/*Object*/schema) {
-		// Summary:
-		//  	To use the validator call JSONSchema.validate with an instance object and an optional schema object.
-		// 		If a schema is provided, it will be used to validate. If the instance object refers to a schema (self-validating),
-		// 		that schema will be used to validate and the schema parameter is not necessary (if both exist,
-		// 		both validations will occur).
-		// 		The validate method will return an object with two properties:
-		// 			valid: A boolean indicating if the instance is valid by the schema
-		// 			errors: An array of validation errors. If there are no errors, then an
-		// 					empty list will be returned. A validation error will have two properties:
-		// 						property: which indicates which property had the error
-		// 						message: which indicates what the error was
-		//
-		return validate(instance, schema, {changing: false});//, coerce: false, existingOnly: false});
-	};
-exports.checkPropertyChange = function(/*Any*/value,/*Object*/schema, /*String*/property) {
-		// Summary:
-		// 		The checkPropertyChange method will check to see if an value can legally be in property with the given schema
-		// 		This is slightly different than the validate method in that it will fail if the schema is readonly and it will
-		// 		not check for self-validation, it is assumed that the passed in value is already internally valid.
-		// 		The checkPropertyChange method will return the same object type as validate, see JSONSchema.validate for
-		// 		information.
-		//
-		return validate(value, schema, {changing: property || "property"});
-	};
-var validate = exports._validate = function(/*Any*/instance,/*Object*/schema,/*Object*/options) {
-
-	if (!options) options = {};
-	var _changing = options.changing;
-
-	function getType(schema){
-		return schema.type || (primitiveConstructors[schema.name] == schema && schema.name.toLowerCase());
-	}
-	var errors = [];
-	// validate a value against a property definition
-	function checkProp(value, schema, path,i){
-
-		var l;
-		path += path ? typeof i == 'number' ? '[' + i + ']' : typeof i == 'undefined' ? '' : '.' + i : i;
-		function addError(message){
-			errors.push({property:path,message:message});
-		}
-
-		if((typeof schema != 'object' || schema instanceof Array) && (path || typeof schema != 'function') && !(schema && getType(schema))){
-			if(typeof schema == 'function'){
-				if(!(value instanceof schema)){
-					addError("is not an instance of the class/constructor " + schema.name);
-				}
-			}else if(schema){
-				addError("Invalid schema/property definition " + schema);
-			}
-			return null;
-		}
-		if(_changing && schema.readonly){
-			addError("is a readonly field, it can not be changed");
-		}
-		if(schema['extends']){ // if it extends another schema, it must pass that schema as well
-			checkProp(value,schema['extends'],path,i);
-		}
-		// validate a value against a type definition
-		function checkType(type,value){
-			if(type){
-				if(typeof type == 'string' && type != 'any' &&
-						(type == 'null' ? value !== null : typeof value != type) &&
-						!(value instanceof Array && type == 'array') &&
-						!(value instanceof Date && type == 'date') &&
-						!(type == 'integer' && value%1===0)){
-					return [{property:path,message:(typeof value) + " value found, but a " + type + " is required"}];
-				}
-				if(type instanceof Array){
-					var unionErrors=[];
-					for(var j = 0; j < type.length; j++){ // a union type
-						if(!(unionErrors=checkType(type[j],value)).length){
-							break;
-						}
-					}
-					if(unionErrors.length){
-						return unionErrors;
-					}
-				}else if(typeof type == 'object'){
-					var priorErrors = errors;
-					errors = [];
-					checkProp(value,type,path);
-					var theseErrors = errors;
-					errors = priorErrors;
-					return theseErrors;
-				}
-			}
-			return [];
-		}
-		if(value === undefined){
-			if(schema.required){
-				addError("is missing and it is required");
-			}
-		}else{
-			errors = errors.concat(checkType(getType(schema),value));
-			if(schema.disallow && !checkType(schema.disallow,value).length){
-				addError(" disallowed value was matched");
-			}
-			if(value !== null){
-				if(value instanceof Array){
-					if(schema.items){
-						var itemsIsArray = schema.items instanceof Array;
-						var propDef = schema.items;
-						for (i = 0, l = value.length; i < l; i += 1) {
-							if (itemsIsArray)
-								propDef = schema.items[i];
-							if (options.coerce)
-								value[i] = options.coerce(value[i], propDef);
-							errors.concat(checkProp(value[i],propDef,path,i));
-						}
-					}
-					if(schema.minItems && value.length < schema.minItems){
-						addError("There must be a minimum of " + schema.minItems + " in the array");
-					}
-					if(schema.maxItems && value.length > schema.maxItems){
-						addError("There must be a maximum of " + schema.maxItems + " in the array");
-					}
-				}else if(schema.properties || schema.additionalProperties){
-					errors.concat(checkObj(value, schema.properties, path, schema.additionalProperties));
-				}
-				if(schema.pattern && typeof value == 'string' && !value.match(schema.pattern)){
-					addError("does not match the regex pattern " + schema.pattern);
-				}
-				if(schema.maxLength && typeof value == 'string' && value.length > schema.maxLength){
-					addError("may only be " + schema.maxLength + " characters long");
-				}
-				if(schema.minLength && typeof value == 'string' && value.length < schema.minLength){
-					addError("must be at least " + schema.minLength + " characters long");
-				}
-				if(typeof schema.minimum !== undefined && typeof value == typeof schema.minimum &&
-						schema.minimum > value){
-					addError("must have a minimum value of " + schema.minimum);
-				}
-				if(typeof schema.maximum !== undefined && typeof value == typeof schema.maximum &&
-						schema.maximum < value){
-					addError("must have a maximum value of " + schema.maximum);
-				}
-				if(schema['enum']){
-					var enumer = schema['enum'];
-					l = enumer.length;
-					var found;
-					for(var j = 0; j < l; j++){
-						if(enumer[j]===value){
-							found=1;
-							break;
-						}
-					}
-					if(!found){
-						addError("does not have a value in the enumeration " + enumer.join(", "));
-					}
-				}
-				if(typeof schema.maxDecimal == 'number' &&
-					(value.toString().match(new RegExp("\\.[0-9]{" + (schema.maxDecimal + 1) + ",}")))){
-					addError("may only have " + schema.maxDecimal + " digits of decimal places");
-				}
-			}
-		}
-		return null;
-	}
-	// validate an object against a schema
-	function checkObj(instance,objTypeDef,path,additionalProp){
-
-		if(typeof objTypeDef =='object'){
-			if(typeof instance != 'object' || instance instanceof Array){
-				errors.push({property:path,message:"an object is required"});
-			}
-			
-			for(var i in objTypeDef){ 
-				if(objTypeDef.hasOwnProperty(i)){
-					var value = instance[i];
-					// skip _not_ specified properties
-					if (value === undefined && options.existingOnly) continue;
-					var propDef = objTypeDef[i];
-					// set default
-					if(value === undefined && propDef["default"]){
-						value = instance[i] = propDef["default"];
-					}
-					if(options.coerce && i in instance){
-						value = instance[i] = options.coerce(value, propDef);
-					}
-					checkProp(value,propDef,path,i);
-				}
-			}
-		}
-		for(i in instance){
-			if(instance.hasOwnProperty(i) && !(i.charAt(0) == '_' && i.charAt(1) == '_') && objTypeDef && !objTypeDef[i] && additionalProp===false){
-				if (options.filter) {
-					delete instance[i];
-					continue;
-				} else {
-					errors.push({property:path,message:(typeof value) + "The property " + i +
-						" is not defined in the schema and the schema does not allow additional properties"});
-				}
-			}
-			var requires = objTypeDef && objTypeDef[i] && objTypeDef[i].requires;
-			if(requires && !(requires in instance)){
-				errors.push({property:path,message:"the presence of the property " + i + " requires that " + requires + " also be present"});
-			}
-			value = instance[i];
-			if(additionalProp && (!(objTypeDef && typeof objTypeDef == 'object') || !(i in objTypeDef))){
-				if(options.coerce){
-					value = instance[i] = options.coerce(value, additionalProp);
-				}
-				checkProp(value,additionalProp,path,i);
-			}
-			if(!_changing && value && value.$schema){
-				errors = errors.concat(checkProp(value,value.$schema,path,i));
-			}
-		}
-		return errors;
-	}
-	if(schema){
-		checkProp(instance,schema,'',_changing || '');
-	}
-	if(!_changing && instance && instance.$schema){
-		checkProp(instance,instance.$schema,'','');
-	}
-	return {valid:!errors.length,errors:errors};
-};
-exports.mustBeValid = function(result){
-	//	summary:
-	//		This checks to ensure that the result is valid and will throw an appropriate error message if it is not
-	// result: the result returned from checkPropertyChange or validate
-	if(!result.valid){
-		throw new TypeError(result.errors.map(function(error){return "for property " + error.property + ': ' + error.message;}).join(", \n"));
-	}
-}
-
-return exports;
-}));
-
-
-/***/ }),
-/* 745 */
-/***/ (function(module, exports) {
-
-exports = module.exports = stringify
-exports.getSerialize = serializer
-
-function stringify(obj, replacer, spaces, cycleReplacer) {
-  return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces)
-}
-
-function serializer(replacer, cycleReplacer) {
-  var stack = [], keys = []
-
-  if (cycleReplacer == null) cycleReplacer = function(key, value) {
-    if (stack[0] === value) return "[Circular ~]"
-    return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]"
-  }
-
-  return function(key, value) {
-    if (stack.length > 0) {
-      var thisPos = stack.indexOf(this)
-      ~thisPos ? stack.splice(thisPos + 1) : stack.push(this)
-      ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key)
-      if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value)
-    }
-    else stack.push(value)
-
-    return replacer == null ? value : replacer.call(this, key, value)
-  }
-}
-
-
-/***/ }),
-/* 746 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
- * lib/jsprim.js: utilities for primitive JavaScript types
- */
-
-var mod_assert = __webpack_require__(16);
-var mod_util = __webpack_require__(3);
-
-var mod_extsprintf = __webpack_require__(645);
-var mod_verror = __webpack_require__(960);
-var mod_jsonschema = __webpack_require__(744);
-
-/*
- * Public interface
- */
-exports.deepCopy = deepCopy;
-exports.deepEqual = deepEqual;
-exports.isEmpty = isEmpty;
-exports.hasKey = hasKey;
-exports.forEachKey = forEachKey;
-exports.pluck = pluck;
-exports.flattenObject = flattenObject;
-exports.flattenIter = flattenIter;
-exports.validateJsonObject = validateJsonObjectJS;
-exports.validateJsonObjectJS = validateJsonObjectJS;
-exports.randElt = randElt;
-exports.extraProperties = extraProperties;
-exports.mergeObjects = mergeObjects;
-
-exports.startsWith = startsWith;
-exports.endsWith = endsWith;
-
-exports.parseInteger = parseInteger;
-
-exports.iso8601 = iso8601;
-exports.rfc1123 = rfc1123;
-exports.parseDateTime = parseDateTime;
-
-exports.hrtimediff = hrtimeDiff;
-exports.hrtimeDiff = hrtimeDiff;
-exports.hrtimeAccum = hrtimeAccum;
-exports.hrtimeAdd = hrtimeAdd;
-exports.hrtimeNanosec = hrtimeNanosec;
-exports.hrtimeMicrosec = hrtimeMicrosec;
-exports.hrtimeMillisec = hrtimeMillisec;
-
-
-/*
- * Deep copy an acyclic *basic* Javascript object.  This only handles basic
- * scalars (strings, numbers, booleans) and arbitrarily deep arrays and objects
- * containing these.  This does *not* handle instances of other classes.
- */
-function deepCopy(obj)
-{
-	var ret, key;
-	var marker = '__deepCopy';
-
-	if (obj && obj[marker])
-		throw (new Error('attempted deep copy of cyclic object'));
-
-	if (obj && obj.constructor == Object) {
-		ret = {};
-		obj[marker] = true;
-
-		for (key in obj) {
-			if (key == marker)
-				continue;
-
-			ret[key] = deepCopy(obj[key]);
-		}
-
-		delete (obj[marker]);
-		return (ret);
-	}
-
-	if (obj && obj.constructor == Array) {
-		ret = [];
-		obj[marker] = true;
-
-		for (key = 0; key < obj.length; key++)
-			ret.push(deepCopy(obj[key]));
-
-		delete (obj[marker]);
-		return (ret);
-	}
-
-	/*
-	 * It must be a primitive type -- just return it.
-	 */
-	return (obj);
-}
-
-function deepEqual(obj1, obj2)
-{
-	if (typeof (obj1) != typeof (obj2))
-		return (false);
-
-	if (obj1 === null || obj2 === null || typeof (obj1) != 'object')
-		return (obj1 === obj2);
-
-	if (obj1.constructor != obj2.constructor)
-		return (false);
-
-	var k;
-	for (k in obj1) {
-		if (!obj2.hasOwnProperty(k))
-			return (false);
-
-		if (!deepEqual(obj1[k], obj2[k]))
-			return (false);
-	}
-
-	for (k in obj2) {
-		if (!obj1.hasOwnProperty(k))
-			return (false);
-	}
-
-	return (true);
-}
-
-function isEmpty(obj)
-{
-	var key;
-	for (key in obj)
-		return (false);
-	return (true);
-}
-
-function hasKey(obj, key)
-{
-	mod_assert.equal(typeof (key), 'string');
-	return (Object.prototype.hasOwnProperty.call(obj, key));
-}
-
-function forEachKey(obj, callback)
-{
-	for (var key in obj) {
-		if (hasKey(obj, key)) {
-			callback(key, obj[key]);
-		}
-	}
-}
-
-function pluck(obj, key)
-{
-	mod_assert.equal(typeof (key), 'string');
-	return (pluckv(obj, key));
-}
-
-function pluckv(obj, key)
-{
-	if (obj === null || typeof (obj) !== 'object')
-		return (undefined);
-
-	if (obj.hasOwnProperty(key))
-		return (obj[key]);
-
-	var i = key.indexOf('.');
-	if (i == -1)
-		return (undefined);
-
-	var key1 = key.substr(0, i);
-	if (!obj.hasOwnProperty(key1))
-		return (undefined);
-
-	return (pluckv(obj[key1], key.substr(i + 1)));
-}
-
-/*
- * Invoke callback(row) for each entry in the array that would be returned by
- * flattenObject(data, depth).  This is just like flattenObject(data,
- * depth).forEach(callback), except that the intermediate array is never
- * created.
- */
-function flattenIter(data, depth, callback)
-{
-	doFlattenIter(data, depth, [], callback);
-}
-
-function doFlattenIter(data, depth, accum, callback)
-{
-	var each;
-	var key;
-
-	if (depth === 0) {
-		each = accum.slice(0);
-		each.push(data);
-		callback(each);
-		return;
-	}
-
-	mod_assert.ok(data !== null);
-	mod_assert.equal(typeof (data), 'object');
-	mod_assert.equal(typeof (depth), 'number');
-	mod_assert.ok(depth >= 0);
-
-	for (key in data) {
-		each = accum.slice(0);
-		each.push(key);
-		doFlattenIter(data[key], depth - 1, each, callback);
-	}
-}
-
-function flattenObject(data, depth)
-{
-	if (depth === 0)
-		return ([ data ]);
-
-	mod_assert.ok(data !== null);
-	mod_assert.equal(typeof (data), 'object');
-	mod_assert.equal(typeof (depth), 'number');
-	mod_assert.ok(depth >= 0);
-
-	var rv = [];
-	var key;
-
-	for (key in data) {
-		flattenObject(data[key], depth - 1).forEach(function (p) {
-			rv.push([ key ].concat(p));
-		});
-	}
-
-	return (rv);
-}
-
-function startsWith(str, prefix)
-{
-	return (str.substr(0, prefix.length) == prefix);
-}
-
-function endsWith(str, suffix)
-{
-	return (str.substr(
-	    str.length - suffix.length, suffix.length) == suffix);
-}
-
-function iso8601(d)
-{
-	if (typeof (d) == 'number')
-		d = new Date(d);
-	mod_assert.ok(d.constructor === Date);
-	return (mod_extsprintf.sprintf('%4d-%02d-%02dT%02d:%02d:%02d.%03dZ',
-	    d.getUTCFullYear(), d.getUTCMonth() + 1, d.getUTCDate(),
-	    d.getUTCHours(), d.getUTCMinutes(), d.getUTCSeconds(),
-	    d.getUTCMilliseconds()));
-}
-
-var RFC1123_MONTHS = [
-    'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
-    'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
-var RFC1123_DAYS = [
-    'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
-
-function rfc1123(date) {
-	return (mod_extsprintf.sprintf('%s, %02d %s %04d %02d:%02d:%02d GMT',
-	    RFC1123_DAYS[date.getUTCDay()], date.getUTCDate(),
-	    RFC1123_MONTHS[date.getUTCMonth()], date.getUTCFullYear(),
-	    date.getUTCHours(), date.getUTCMinutes(),
-	    date.getUTCSeconds()));
-}
-
-/*
- * Parses a date expressed as a string, as either a number of milliseconds since
- * the epoch or any string format that Date accepts, giving preference to the
- * former where these two sets overlap (e.g., small numbers).
- */
-function parseDateTime(str)
-{
-	/*
-	 * This is irritatingly implicit, but significantly more concise than
-	 * alternatives.  The "+str" will convert a string containing only a
-	 * number directly to a Number, or NaN for other strings.  Thus, if the
-	 * conversion succeeds, we use it (this is the milliseconds-since-epoch
-	 * case).  Otherwise, we pass the string directly to the Date
-	 * constructor to parse.
-	 */
-	var numeric = +str;
-	if (!isNaN(numeric)) {
-		return (new Date(numeric));
-	} else {
-		return (new Date(str));
-	}
-}
-
-
-/*
- * Number.*_SAFE_INTEGER isn't present before node v0.12, so we hardcode
- * the ES6 definitions here, while allowing for them to someday be higher.
- */
-var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
-var MIN_SAFE_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
-
-
-/*
- * Default options for parseInteger().
- */
-var PI_DEFAULTS = {
-	base: 10,
-	allowSign: true,
-	allowPrefix: false,
-	allowTrailing: false,
-	allowImprecise: false,
-	trimWhitespace: false,
-	leadingZeroIsOctal: false
-};
-
-var CP_0 = 0x30;
-var CP_9 = 0x39;
-
-var CP_A = 0x41;
-var CP_B = 0x42;
-var CP_O = 0x4f;
-var CP_T = 0x54;
-var CP_X = 0x58;
-var CP_Z = 0x5a;
-
-var CP_a = 0x61;
-var CP_b = 0x62;
-var CP_o = 0x6f;
-var CP_t = 0x74;
-var CP_x = 0x78;
-var CP_z = 0x7a;
-
-var PI_CONV_DEC = 0x30;
-var PI_CONV_UC = 0x37;
-var PI_CONV_LC = 0x57;
-
-
-/*
- * A stricter version of parseInt() that provides options for changing what
- * is an acceptable string (for example, disallowing trailing characters).
- */
-function parseInteger(str, uopts)
-{
-	mod_assert.string(str, 'str');
-	mod_assert.optionalObject(uopts, 'options');
-
-	var baseOverride = false;
-	var options = PI_DEFAULTS;
-
-	if (uopts) {
-		baseOverride = hasKey(uopts, 'base');
-		options = mergeObjects(options, uopts);
-		mod_assert.number(options.base, 'options.base');
-		mod_assert.ok(options.base >= 2, 'options.base >= 2');
-		mod_assert.ok(options.base <= 36, 'options.base <= 36');
-		mod_assert.bool(options.allowSign, 'options.allowSign');
-		mod_assert.bool(options.allowPrefix, 'options.allowPrefix');
-		mod_assert.bool(options.allowTrailing,
-		    'options.allowTrailing');
-		mod_assert.bool(options.allowImprecise,
-		    'options.allowImprecise');
-		mod_assert.bool(options.trimWhitespace,
-		    'options.trimWhitespace');
-		mod_assert.bool(options.leadingZeroIsOctal,
-		    'options.leadingZeroIsOctal');
-
-		if (options.leadingZeroIsOctal) {
-			mod_assert.ok(!baseOverride,
-			    '"base" and "leadingZeroIsOctal" are ' +
-			    'mutually exclusive');
-		}
-	}
-
-	var c;
-	var pbase = -1;
-	var base = options.base;
-	var start;
-	var mult = 1;
-	var value = 0;
-	var idx = 0;
-	var len = str.length;
-
-	/* Trim any whitespace on the left side. */
-	if (options.trimWhitespace) {
-		while (idx < len && isSpace(str.charCodeAt(idx))) {
-			++idx;
-		}
-	}
-
-	/* Check the number for a leading sign. */
-	if (options.allowSign) {
-		if (str[idx] === '-') {
-			idx += 1;
-			mult = -1;
-		} else if (str[idx] === '+') {
-			idx += 1;
-		}
-	}
-
-	/* Parse the base-indicating prefix if there is one. */
-	if (str[idx] === '0') {
-		if (options.allowPrefix) {
-			pbase = prefixToBase(str.charCodeAt(idx + 1));
-			if (pbase !== -1 && (!baseOverride || pbase === base)) {
-				base = pbase;
-				idx += 2;
-			}
-		}
-
-		if (pbase === -1 && options.leadingZeroIsOctal) {
-			base = 8;
-		}
-	}
-
-	/* Parse the actual digits. */
-	for (start = idx; idx < len; ++idx) {
-		c = translateDigit(str.charCodeAt(idx));
-		if (c !== -1 && c < base) {
-			value *= base;
-			value += c;
-		} else {
-			break;
-		}
-	}
-
-	/* If we didn't parse any digits, we have an invalid number. */
-	if (start === idx) {
-		return (new Error('invalid number: ' + JSON.stringify(str)));
-	}
-
-	/* Trim any whitespace on the right side. */
-	if (options.trimWhitespace) {
-		while (idx < len && isSpace(str.charCodeAt(idx))) {
-			++idx;
-		}
-	}
-
-	/* Check for trailing characters. */
-	if (idx < len && !options.allowTrailing) {
-		return (new Error('trailing characters after number: ' +
-		    JSON.stringify(str.slice(idx))));
-	}
-
-	/* If our value is 0, we return now, to avoid returning -0. */
-	if (value === 0) {
-		return (0);
-	}
-
-	/* Calculate our final value. */
-	var result = value * mult;
-
-	/*
-	 * If the string represents a value that cannot be precisely represented
-	 * by JavaScript, then we want to check that:
-	 *
-	 * - We never increased the value past MAX_SAFE_INTEGER
-	 * - We don't make the result negative and below MIN_SAFE_INTEGER
-	 *
-	 * Because we only ever increment the value during parsing, there's no
-	 * chance of moving past MAX_SAFE_INTEGER and then dropping below it
-	 * again, losing precision in the process. This means that we only need
-	 * to do our checks here, at the end.
-	 */
-	if (!options.allowImprecise &&
-	    (value > MAX_SAFE_INTEGER || result < MIN_SAFE_INTEGER)) {
-		return (new Error('number is outside of the supported range: ' +
-		    JSON.stringify(str.slice(start, idx))));
-	}
-
-	return (result);
-}
-
-
-/*
- * Interpret a character code as a base-36 digit.
- */
-function translateDigit(d)
-{
-	if (d >= CP_0 && d <= CP_9) {
-		/* '0' to '9' -> 0 to 9 */
-		return (d - PI_CONV_DEC);
-	} else if (d >= CP_A && d <= CP_Z) {
-		/* 'A' - 'Z' -> 10 to 35 */
-		return (d - PI_CONV_UC);
-	} else if (d >= CP_a && d <= CP_z) {
-		/* 'a' - 'z' -> 10 to 35 */
-		return (d - PI_CONV_LC);
-	} else {
-		/* Invalid character code */
-		return (-1);
-	}
-}
-
-
-/*
- * Test if a value matches the ECMAScript definition of trimmable whitespace.
- */
-function isSpace(c)
-{
-	return (c === 0x20) ||
-	    (c >= 0x0009 && c <= 0x000d) ||
-	    (c === 0x00a0) ||
-	    (c === 0x1680) ||
-	    (c === 0x180e) ||
-	    (c >= 0x2000 && c <= 0x200a) ||
-	    (c === 0x2028) ||
-	    (c === 0x2029) ||
-	    (c === 0x202f) ||
-	    (c === 0x205f) ||
-	    (c === 0x3000) ||
-	    (c === 0xfeff);
-}
-
-
-/*
- * Determine which base a character indicates (e.g., 'x' indicates hex).
- */
-function prefixToBase(c)
-{
-	if (c === CP_b || c === CP_B) {
-		/* 0b/0B (binary) */
-		return (2);
-	} else if (c === CP_o || c === CP_O) {
-		/* 0o/0O (octal) */
-		return (8);
-	} else if (c === CP_t || c === CP_T) {
-		/* 0t/0T (decimal) */
-		return (10);
-	} else if (c === CP_x || c === CP_X) {
-		/* 0x/0X (hexadecimal) */
-		return (16);
-	} else {
-		/* Not a meaningful character */
-		return (-1);
-	}
-}
-
-
-function validateJsonObjectJS(schema, input)
-{
-	var report = mod_jsonschema.validate(input, schema);
-
-	if (report.errors.length === 0)
-		return (null);
-
-	/* Currently, we only do anything useful with the first error. */
-	var error = report.errors[0];
-
-	/* The failed property is given by a URI with an irrelevant prefix. */
-	var propname = error['property'];
-	var reason = error['message'].toLowerCase();
-	var i, j;
-
-	/*
-	 * There's at least one case where the property error message is
-	 * confusing at best.  We work around this here.
-	 */
-	if ((i = reason.indexOf('the property ')) != -1 &&
-	    (j = reason.indexOf(' is not defined in the schema and the ' +
-	    'schema does not allow additional properties')) != -1) {
-		i += 'the property '.length;
-		if (propname === '')
-			propname = reason.substr(i, j - i);
-		else
-			propname = propname + '.' + reason.substr(i, j - i);
-
-		reason = 'unsupported property';
-	}
-
-	var rv = new mod_verror.VError('property "%s": %s', propname, reason);
-	rv.jsv_details = error;
-	return (rv);
-}
-
-function randElt(arr)
-{
-	mod_assert.ok(Array.isArray(arr) && arr.length > 0,
-	    'randElt argument must be a non-empty array');
-
-	return (arr[Math.floor(Math.random() * arr.length)]);
-}
-
-function assertHrtime(a)
-{
-	mod_assert.ok(a[0] >= 0 && a[1] >= 0,
-	    'negative numbers not allowed in hrtimes');
-	mod_assert.ok(a[1] < 1e9, 'nanoseconds column overflow');
-}
-
-/*
- * Compute the time elapsed between hrtime readings A and B, where A is later
- * than B.  hrtime readings come from Node's process.hrtime().  There is no
- * defined way to represent negative deltas, so it's illegal to diff B from A
- * where the time denoted by B is later than the time denoted by A.  If this
- * becomes valuable, we can define a representation and extend the
- * implementation to support it.
- */
-function hrtimeDiff(a, b)
-{
-	assertHrtime(a);
-	assertHrtime(b);
-	mod_assert.ok(a[0] > b[0] || (a[0] == b[0] && a[1] >= b[1]),
-	    'negative differences not allowed');
-
-	var rv = [ a[0] - b[0], 0 ];
-
-	if (a[1] >= b[1]) {
-		rv[1] = a[1] - b[1];
-	} else {
-		rv[0]--;
-		rv[1] = 1e9 - (b[1] - a[1]);
-	}
-
-	return (rv);
-}
-
-/*
- * Convert a hrtime reading from the array format returned by Node's
- * process.hrtime() into a scalar number of nanoseconds.
- */
-function hrtimeNanosec(a)
-{
-	assertHrtime(a);
-
-	return (Math.floor(a[0] * 1e9 + a[1]));
-}
-
-/*
- * Convert a hrtime reading from the array format returned by Node's
- * process.hrtime() into a scalar number of microseconds.
- */
-function hrtimeMicrosec(a)
-{
-	assertHrtime(a);
-
-	return (Math.floor(a[0] * 1e6 + a[1] / 1e3));
-}
-
-/*
- * Convert a hrtime reading from the array format returned by Node's
- * process.hrtime() into a scalar number of milliseconds.
- */
-function hrtimeMillisec(a)
-{
-	assertHrtime(a);
-
-	return (Math.floor(a[0] * 1e3 + a[1] / 1e6));
-}
-
-/*
- * Add two hrtime readings A and B, overwriting A with the result of the
- * addition.  This function is useful for accumulating several hrtime intervals
- * into a counter.  Returns A.
- */
-function hrtimeAccum(a, b)
-{
-	assertHrtime(a);
-	assertHrtime(b);
-
-	/*
-	 * Accumulate the nanosecond component.
-	 */
-	a[1] += b[1];
-	if (a[1] >= 1e9) {
-		/*
-		 * The nanosecond component overflowed, so carry to the seconds
-		 * field.
-		 */
-		a[0]++;
-		a[1] -= 1e9;
-	}
-
-	/*
-	 * Accumulate the seconds component.
-	 */
-	a[0] += b[0];
-
-	return (a);
-}
-
-/*
- * Add two hrtime readings A and B, returning the result as a new hrtime array.
- * Does not modify either input argument.
- */
-function hrtimeAdd(a, b)
-{
-	assertHrtime(a);
-
-	var rv = [ a[0], a[1] ];
-
-	return (hrtimeAccum(rv, b));
-}
-
-
-/*
- * Check an object for unexpected properties.  Accepts the object to check, and
- * an array of allowed property names (strings).  Returns an array of key names
- * that were found on the object, but did not appear in the list of allowed
- * properties.  If no properties were found, the returned array will be of
- * zero length.
- */
-function extraProperties(obj, allowed)
-{
-	mod_assert.ok(typeof (obj) === 'object' && obj !== null,
-	    'obj argument must be a non-null object');
-	mod_assert.ok(Array.isArray(allowed),
-	    'allowed argument must be an array of strings');
-	for (var i = 0; i < allowed.length; i++) {
-		mod_assert.ok(typeof (allowed[i]) === 'string',
-		    'allowed argument must be an array of strings');
-	}
-
-	return (Object.keys(obj).filter(function (key) {
-		return (allowed.indexOf(key) === -1);
-	}));
-}
-
-/*
- * Given three sets of properties "provided" (may be undefined), "overrides"
- * (required), and "defaults" (may be undefined), construct an object containing
- * the union of these sets with "overrides" overriding "provided", and
- * "provided" overriding "defaults".  None of the input objects are modified.
- */
-function mergeObjects(provided, overrides, defaults)
-{
-	var rv, k;
-
-	rv = {};
-	if (defaults) {
-		for (k in defaults)
-			rv[k] = defaults[k];
-	}
-
-	if (provided) {
-		for (k in provided)
-			rv[k] = provided[k];
-	}
-
-	if (overrides) {
-		for (k in overrides)
-			rv[k] = overrides[k];
-	}
-
-	return (rv);
-}
-
-
-/***/ }),
-/* 747 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/* eslint-disable no-nested-ternary */
-
-var arr = [];
-var charCodeCache = [];
-
-module.exports = function (a, b) {
-	if (a === b) {
-		return 0;
-	}
-
-	var swap = a;
-
-	// Swapping the strings if `a` is longer than `b` so we know which one is the
-	// shortest & which one is the longest
-	if (a.length > b.length) {
-		a = b;
-		b = swap;
-	}
-
-	var aLen = a.length;
-	var bLen = b.length;
-
-	if (aLen === 0) {
-		return bLen;
-	}
-
-	if (bLen === 0) {
-		return aLen;
-	}
-
-	// Performing suffix trimming:
-	// We can linearly drop suffix common to both strings since they
-	// don't increase distance at all
-	// Note: `~-` is the bitwise way to perform a `- 1` operation
-	while (aLen > 0 && (a.charCodeAt(~-aLen) === b.charCodeAt(~-bLen))) {
-		aLen--;
-		bLen--;
-	}
-
-	if (aLen === 0) {
-		return bLen;
-	}
-
-	// Performing prefix trimming
-	// We can linearly drop prefix common to both strings since they
-	// don't increase distance at all
-	var start = 0;
-
-	while (start < aLen && (a.charCodeAt(start) === b.charCodeAt(start))) {
-		start++;
-	}
-
-	aLen -= start;
-	bLen -= start;
-
-	if (aLen === 0) {
-		return bLen;
-	}
-
-	var bCharCode;
-	var ret;
-	var tmp;
-	var tmp2;
-	var i = 0;
-	var j = 0;
-
-	while (i < aLen) {
-		charCodeCache[start + i] = a.charCodeAt(start + i);
-		arr[i] = ++i;
-	}
-
-	while (j < bLen) {
-		bCharCode = b.charCodeAt(start + j);
-		tmp = j++;
-		ret = j;
-
-		for (i = 0; i < aLen; i++) {
-			tmp2 = bCharCode === charCodeCache[start + i] ? tmp : tmp + 1;
-			tmp = arr[i];
-			ret = arr[i] = tmp > ret ? tmp2 > ret ? ret + 1 : tmp2 : tmp2 > tmp ? tmp + 1 : tmp2;
-		}
-	}
-
-	return ret;
-};
-
-
-/***/ }),
-/* 748 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* WEBPACK VAR INJECTION */(function(module) {/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
-/** Used as the size to enable large array optimizations. */
-var LARGE_ARRAY_SIZE = 200;
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    arrayTag = '[object Array]',
-    boolTag = '[object Boolean]',
-    dateTag = '[object Date]',
-    errorTag = '[object Error]',
-    funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]',
-    mapTag = '[object Map]',
-    numberTag = '[object Number]',
-    objectTag = '[object Object]',
-    promiseTag = '[object Promise]',
-    regexpTag = '[object RegExp]',
-    setTag = '[object Set]',
-    stringTag = '[object String]',
-    symbolTag = '[object Symbol]',
-    weakMapTag = '[object WeakMap]';
-
-var arrayBufferTag = '[object ArrayBuffer]',
-    dataViewTag = '[object DataView]',
-    float32Tag = '[object Float32Array]',
-    float64Tag = '[object Float64Array]',
-    int8Tag = '[object Int8Array]',
-    int16Tag = '[object Int16Array]',
-    int32Tag = '[object Int32Array]',
-    uint8Tag = '[object Uint8Array]',
-    uint8ClampedTag = '[object Uint8ClampedArray]',
-    uint16Tag = '[object Uint16Array]',
-    uint32Tag = '[object Uint32Array]';
-
-/**
- * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
- */
-var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
-
-/** Used to match `RegExp` flags from their coerced string values. */
-var reFlags = /\w*$/;
-
-/** Used to detect host constructors (Safari). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-/** Used to detect unsigned integer values. */
-var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-/** Used to identify `toStringTag` values supported by `_.clone`. */
-var cloneableTags = {};
-cloneableTags[argsTag] = cloneableTags[arrayTag] =
-cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
-cloneableTags[boolTag] = cloneableTags[dateTag] =
-cloneableTags[float32Tag] = cloneableTags[float64Tag] =
-cloneableTags[int8Tag] = cloneableTags[int16Tag] =
-cloneableTags[int32Tag] = cloneableTags[mapTag] =
-cloneableTags[numberTag] = cloneableTags[objectTag] =
-cloneableTags[regexpTag] = cloneableTags[setTag] =
-cloneableTags[stringTag] = cloneableTags[symbolTag] =
-cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
-cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
-cloneableTags[errorTag] = cloneableTags[funcTag] =
-cloneableTags[weakMapTag] = false;
-
-/** Used to determine if values are of the language type `Object`. */
-var objectTypes = {
-  'function': true,
-  'object': true
-};
-
-/** Detect free variable `exports`. */
-var freeExports = (objectTypes[typeof exports] && exports && !exports.nodeType)
-  ? exports
-  : undefined;
-
-/** Detect free variable `module`. */
-var freeModule = (objectTypes[typeof module] && module && !module.nodeType)
-  ? module
-  : undefined;
-
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = (freeModule && freeModule.exports === freeExports)
-  ? freeExports
-  : undefined;
-
-/** Detect free variable `global` from Node.js. */
-var freeGlobal = checkGlobal(freeExports && freeModule && typeof global == 'object' && global);
-
-/** Detect free variable `self`. */
-var freeSelf = checkGlobal(objectTypes[typeof self] && self);
-
-/** Detect free variable `window`. */
-var freeWindow = checkGlobal(objectTypes[typeof window] && window);
-
-/** Detect `this` as the global object. */
-var thisGlobal = checkGlobal(objectTypes[typeof this] && this);
-
-/**
- * Used as a reference to the global object.
- *
- * The `this` value is used if it's the global object to avoid Greasemonkey's
- * restricted `window` object, otherwise the `window` object is used.
- */
-var root = freeGlobal ||
-  ((freeWindow !== (thisGlobal && thisGlobal.window)) && freeWindow) ||
-    freeSelf || thisGlobal || Function('return this')();
-
-/**
- * Adds the key-value `pair` to `map`.
- *
- * @private
- * @param {Object} map The map to modify.
- * @param {Array} pair The key-value pair to add.
- * @returns {Object} Returns `map`.
- */
-function addMapEntry(map, pair) {
-  // Don't return `Map#set` because it doesn't return the map instance in IE 11.
-  map.set(pair[0], pair[1]);
-  return map;
-}
-
-/**
- * Adds `value` to `set`.
- *
- * @private
- * @param {Object} set The set to modify.
- * @param {*} value The value to add.
- * @returns {Object} Returns `set`.
- */
-function addSetEntry(set, value) {
-  set.add(value);
-  return set;
-}
-
-/**
- * A specialized version of `_.forEach` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns `array`.
- */
-function arrayEach(array, iteratee) {
-  var index = -1,
-      length = array.length;
-
-  while (++index < length) {
-    if (iteratee(array[index], index, array) === false) {
-      break;
-    }
-  }
-  return array;
-}
-
-/**
- * Appends the elements of `values` to `array`.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {Array} values The values to append.
- * @returns {Array} Returns `array`.
- */
-function arrayPush(array, values) {
-  var index = -1,
-      length = values.length,
-      offset = array.length;
-
-  while (++index < length) {
-    array[offset + index] = values[index];
-  }
-  return array;
-}
-
-/**
- * A specialized version of `_.reduce` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} array The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @param {*} [accumulator] The initial value.
- * @param {boolean} [initAccum] Specify using the first element of `array` as
- *  the initial value.
- * @returns {*} Returns the accumulated value.
- */
-function arrayReduce(array, iteratee, accumulator, initAccum) {
-  var index = -1,
-      length = array.length;
-
-  if (initAccum && length) {
-    accumulator = array[++index];
-  }
-  while (++index < length) {
-    accumulator = iteratee(accumulator, array[index], index, array);
-  }
-  return accumulator;
-}
-
-/**
- * The base implementation of `_.times` without support for iteratee shorthands
- * or max array length checks.
- *
- * @private
- * @param {number} n The number of times to invoke `iteratee`.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the array of results.
- */
-function baseTimes(n, iteratee) {
-  var index = -1,
-      result = Array(n);
-
-  while (++index < n) {
-    result[index] = iteratee(index);
-  }
-  return result;
-}
-
-/**
- * Checks if `value` is a global object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {null|Object} Returns `value` if it's a global object, else `null`.
- */
-function checkGlobal(value) {
-  return (value && value.Object === Object) ? value : null;
-}
-
-/**
- * Checks if `value` is a host object in IE < 9.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
- */
-function isHostObject(value) {
-  // Many host objects are `Object` objects that can coerce to strings
-  // despite having improperly defined `toString` methods.
-  var result = false;
-  if (value != null && typeof value.toString != 'function') {
-    try {
-      result = !!(value + '');
-    } catch (e) {}
-  }
-  return result;
-}
-
-/**
- * Converts `map` to its key-value pairs.
- *
- * @private
- * @param {Object} map The map to convert.
- * @returns {Array} Returns the key-value pairs.
- */
-function mapToArray(map) {
-  var index = -1,
-      result = Array(map.size);
-
-  map.forEach(function(value, key) {
-    result[++index] = [key, value];
-  });
-  return result;
-}
-
-/**
- * Converts `set` to an array of its values.
- *
- * @private
- * @param {Object} set The set to convert.
- * @returns {Array} Returns the values.
- */
-function setToArray(set) {
-  var index = -1,
-      result = Array(set.size);
-
-  set.forEach(function(value) {
-    result[++index] = value;
-  });
-  return result;
-}
-
-/** Used for built-in method references. */
-var arrayProto = Array.prototype,
-    objectProto = Object.prototype;
-
-/** Used to resolve the decompiled source of functions. */
-var funcToString = Function.prototype.toString;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
-
-/** Built-in value references. */
-var Buffer = moduleExports ? root.Buffer : undefined,
-    Symbol = root.Symbol,
-    Uint8Array = root.Uint8Array,
-    getOwnPropertySymbols = Object.getOwnPropertySymbols,
-    objectCreate = Object.create,
-    propertyIsEnumerable = objectProto.propertyIsEnumerable,
-    splice = arrayProto.splice;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeGetPrototype = Object.getPrototypeOf,
-    nativeKeys = Object.keys;
-
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView'),
-    Map = getNative(root, 'Map'),
-    Promise = getNative(root, 'Promise'),
-    Set = getNative(root, 'Set'),
-    WeakMap = getNative(root, 'WeakMap'),
-    nativeCreate = getNative(Object, 'create');
-
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
-    mapCtorString = toSource(Map),
-    promiseCtorString = toSource(Promise),
-    setCtorString = toSource(Set),
-    weakMapCtorString = toSource(WeakMap);
-
-/** Used to convert symbols to primitives and strings. */
-var symbolProto = Symbol ? Symbol.prototype : undefined,
-    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
-
-/**
- * Creates a hash object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Hash(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the hash.
- *
- * @private
- * @name clear
- * @memberOf Hash
- */
-function hashClear() {
-  this.__data__ = nativeCreate ? nativeCreate(null) : {};
-}
-
-/**
- * Removes `key` and its value from the hash.
- *
- * @private
- * @name delete
- * @memberOf Hash
- * @param {Object} hash The hash to modify.
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function hashDelete(key) {
-  return this.has(key) && delete this.__data__[key];
-}
-
-/**
- * Gets the hash value for `key`.
- *
- * @private
- * @name get
- * @memberOf Hash
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function hashGet(key) {
-  var data = this.__data__;
-  if (nativeCreate) {
-    var result = data[key];
-    return result === HASH_UNDEFINED ? undefined : result;
-  }
-  return hasOwnProperty.call(data, key) ? data[key] : undefined;
-}
-
-/**
- * Checks if a hash value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Hash
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function hashHas(key) {
-  var data = this.__data__;
-  return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
-}
-
-/**
- * Sets the hash `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Hash
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the hash instance.
- */
-function hashSet(key, value) {
-  var data = this.__data__;
-  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
-  return this;
-}
-
-// Add methods to `Hash`.
-Hash.prototype.clear = hashClear;
-Hash.prototype['delete'] = hashDelete;
-Hash.prototype.get = hashGet;
-Hash.prototype.has = hashHas;
-Hash.prototype.set = hashSet;
-
-/**
- * Creates an list cache object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function ListCache(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the list cache.
- *
- * @private
- * @name clear
- * @memberOf ListCache
- */
-function listCacheClear() {
-  this.__data__ = [];
-}
-
-/**
- * Removes `key` and its value from the list cache.
- *
- * @private
- * @name delete
- * @memberOf ListCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function listCacheDelete(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    return false;
-  }
-  var lastIndex = data.length - 1;
-  if (index == lastIndex) {
-    data.pop();
-  } else {
-    splice.call(data, index, 1);
-  }
-  return true;
-}
-
-/**
- * Gets the list cache value for `key`.
- *
- * @private
- * @name get
- * @memberOf ListCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function listCacheGet(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  return index < 0 ? undefined : data[index][1];
-}
-
-/**
- * Checks if a list cache value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf ListCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function listCacheHas(key) {
-  return assocIndexOf(this.__data__, key) > -1;
-}
-
-/**
- * Sets the list cache `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf ListCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the list cache instance.
- */
-function listCacheSet(key, value) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    data.push([key, value]);
-  } else {
-    data[index][1] = value;
-  }
-  return this;
-}
-
-// Add methods to `ListCache`.
-ListCache.prototype.clear = listCacheClear;
-ListCache.prototype['delete'] = listCacheDelete;
-ListCache.prototype.get = listCacheGet;
-ListCache.prototype.has = listCacheHas;
-ListCache.prototype.set = listCacheSet;
-
-/**
- * Creates a map cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function MapCache(entries) {
-  var index = -1,
-      length = entries ? entries.length : 0;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-/**
- * Removes all key-value entries from the map.
- *
- * @private
- * @name clear
- * @memberOf MapCache
- */
-function mapCacheClear() {
-  this.__data__ = {
-    'hash': new Hash,
-    'map': new (Map || ListCache),
-    'string': new Hash
-  };
-}
-
-/**
- * Removes `key` and its value from the map.
- *
- * @private
- * @name delete
- * @memberOf MapCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function mapCacheDelete(key) {
-  return getMapData(this, key)['delete'](key);
-}
-
-/**
- * Gets the map value for `key`.
- *
- * @private
- * @name get
- * @memberOf MapCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function mapCacheGet(key) {
-  return getMapData(this, key).get(key);
-}
-
-/**
- * Checks if a map value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf MapCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function mapCacheHas(key) {
-  return getMapData(this, key).has(key);
-}
-
-/**
- * Sets the map `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf MapCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the map cache instance.
- */
-function mapCacheSet(key, value) {
-  getMapData(this, key).set(key, value);
-  return this;
-}
-
-// Add methods to `MapCache`.
-MapCache.prototype.clear = mapCacheClear;
-MapCache.prototype['delete'] = mapCacheDelete;
-MapCache.prototype.get = mapCacheGet;
-MapCache.prototype.has = mapCacheHas;
-MapCache.prototype.set = mapCacheSet;
-
-/**
- * Creates a stack cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Stack(entries) {
-  this.__data__ = new ListCache(entries);
-}
-
-/**
- * Removes all key-value entries from the stack.
- *
- * @private
- * @name clear
- * @memberOf Stack
- */
-function stackClear() {
-  this.__data__ = new ListCache;
-}
-
-/**
- * Removes `key` and its value from the stack.
- *
- * @private
- * @name delete
- * @memberOf Stack
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function stackDelete(key) {
-  return this.__data__['delete'](key);
-}
-
-/**
- * Gets the stack value for `key`.
- *
- * @private
- * @name get
- * @memberOf Stack
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function stackGet(key) {
-  return this.__data__.get(key);
-}
-
-/**
- * Checks if a stack value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Stack
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function stackHas(key) {
-  return this.__data__.has(key);
-}
-
-/**
- * Sets the stack `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Stack
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the stack cache instance.
- */
-function stackSet(key, value) {
-  var cache = this.__data__;
-  if (cache instanceof ListCache && cache.__data__.length == LARGE_ARRAY_SIZE) {
-    cache = this.__data__ = new MapCache(cache.__data__);
-  }
-  cache.set(key, value);
-  return this;
-}
-
-// Add methods to `Stack`.
-Stack.prototype.clear = stackClear;
-Stack.prototype['delete'] = stackDelete;
-Stack.prototype.get = stackGet;
-Stack.prototype.has = stackHas;
-Stack.prototype.set = stackSet;
-
-/**
- * Assigns `value` to `key` of `object` if the existing value is not equivalent
- * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * for equality comparisons.
- *
- * @private
- * @param {Object} object The object to modify.
- * @param {string} key The key of the property to assign.
- * @param {*} value The value to assign.
- */
-function assignValue(object, key, value) {
-  var objValue = object[key];
-  if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
-      (value === undefined && !(key in object))) {
-    object[key] = value;
-  }
-}
-
-/**
- * Gets the index at which the `key` is found in `array` of key-value pairs.
- *
- * @private
- * @param {Array} array The array to search.
- * @param {*} key The key to search for.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
-function assocIndexOf(array, key) {
-  var length = array.length;
-  while (length--) {
-    if (eq(array[length][0], key)) {
-      return length;
-    }
-  }
-  return -1;
-}
-
-/**
- * The base implementation of `_.assign` without support for multiple sources
- * or `customizer` functions.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @returns {Object} Returns `object`.
- */
-function baseAssign(object, source) {
-  return object && copyObject(source, keys(source), object);
-}
-
-/**
- * The base implementation of `_.clone` and `_.cloneDeep` which tracks
- * traversed objects.
- *
- * @private
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @param {boolean} [isFull] Specify a clone including symbols.
- * @param {Function} [customizer] The function to customize cloning.
- * @param {string} [key] The key of `value`.
- * @param {Object} [object] The parent object of `value`.
- * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
- * @returns {*} Returns the cloned value.
- */
-function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
-  var result;
-  if (customizer) {
-    result = object ? customizer(value, key, object, stack) : customizer(value);
-  }
-  if (result !== undefined) {
-    return result;
-  }
-  if (!isObject(value)) {
-    return value;
-  }
-  var isArr = isArray(value);
-  if (isArr) {
-    result = initCloneArray(value);
-    if (!isDeep) {
-      return copyArray(value, result);
-    }
-  } else {
-    var tag = getTag(value),
-        isFunc = tag == funcTag || tag == genTag;
-
-    if (isBuffer(value)) {
-      return cloneBuffer(value, isDeep);
-    }
-    if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
-      if (isHostObject(value)) {
-        return object ? value : {};
-      }
-      result = initCloneObject(isFunc ? {} : value);
-      if (!isDeep) {
-        return copySymbols(value, baseAssign(result, value));
-      }
-    } else {
-      if (!cloneableTags[tag]) {
-        return object ? value : {};
-      }
-      result = initCloneByTag(value, tag, baseClone, isDeep);
-    }
-  }
-  // Check for circular references and return its corresponding clone.
-  stack || (stack = new Stack);
-  var stacked = stack.get(value);
-  if (stacked) {
-    return stacked;
-  }
-  stack.set(value, result);
-
-  if (!isArr) {
-    var props = isFull ? getAllKeys(value) : keys(value);
-  }
-  // Recursively populate clone (susceptible to call stack limits).
-  arrayEach(props || value, function(subValue, key) {
-    if (props) {
-      key = subValue;
-      subValue = value[key];
-    }
-    assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
-  });
-  return result;
-}
-
-/**
- * The base implementation of `_.create` without support for assigning
- * properties to the created object.
- *
- * @private
- * @param {Object} prototype The object to inherit from.
- * @returns {Object} Returns the new object.
- */
-function baseCreate(proto) {
-  return isObject(proto) ? objectCreate(proto) : {};
-}
-
-/**
- * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
- * `keysFunc` and `symbolsFunc` to get the enumerable property names and
- * symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @param {Function} symbolsFunc The function to get the symbols of `object`.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function baseGetAllKeys(object, keysFunc, symbolsFunc) {
-  var result = keysFunc(object);
-  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-}
-
-/**
- * The base implementation of `_.has` without support for deep paths.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Array|string} key The key to check.
- * @returns {boolean} Returns `true` if `key` exists, else `false`.
- */
-function baseHas(object, key) {
-  // Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
-  // that are composed entirely of index properties, return `false` for
-  // `hasOwnProperty` checks of them.
-  return hasOwnProperty.call(object, key) ||
-    (typeof object == 'object' && key in object && getPrototype(object) === null);
-}
-
-/**
- * The base implementation of `_.keys` which doesn't skip the constructor
- * property of prototypes or treat sparse arrays as dense.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function baseKeys(object) {
-  return nativeKeys(Object(object));
-}
-
-/**
- * The base implementation of `_.property` without support for deep paths.
- *
- * @private
- * @param {string} key The key of the property to get.
- * @returns {Function} Returns the new accessor function.
- */
-function baseProperty(key) {
-  return function(object) {
-    return object == null ? undefined : object[key];
-  };
-}
-
-/**
- * Creates a clone of  `buffer`.
- *
- * @private
- * @param {Buffer} buffer The buffer to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Buffer} Returns the cloned buffer.
- */
-function cloneBuffer(buffer, isDeep) {
-  if (isDeep) {
-    return buffer.slice();
-  }
-  var result = new buffer.constructor(buffer.length);
-  buffer.copy(result);
-  return result;
-}
-
-/**
- * Creates a clone of `arrayBuffer`.
- *
- * @private
- * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
- * @returns {ArrayBuffer} Returns the cloned array buffer.
- */
-function cloneArrayBuffer(arrayBuffer) {
-  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
-  new Uint8Array(result).set(new Uint8Array(arrayBuffer));
-  return result;
-}
-
-/**
- * Creates a clone of `dataView`.
- *
- * @private
- * @param {Object} dataView The data view to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned data view.
- */
-function cloneDataView(dataView, isDeep) {
-  var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
-  return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
-}
-
-/**
- * Creates a clone of `map`.
- *
- * @private
- * @param {Object} map The map to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned map.
- */
-function cloneMap(map, isDeep, cloneFunc) {
-  var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
-  return arrayReduce(array, addMapEntry, new map.constructor);
-}
-
-/**
- * Creates a clone of `regexp`.
- *
- * @private
- * @param {Object} regexp The regexp to clone.
- * @returns {Object} Returns the cloned regexp.
- */
-function cloneRegExp(regexp) {
-  var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
-  result.lastIndex = regexp.lastIndex;
-  return result;
-}
-
-/**
- * Creates a clone of `set`.
- *
- * @private
- * @param {Object} set The set to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned set.
- */
-function cloneSet(set, isDeep, cloneFunc) {
-  var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
-  return arrayReduce(array, addSetEntry, new set.constructor);
-}
-
-/**
- * Creates a clone of the `symbol` object.
- *
- * @private
- * @param {Object} symbol The symbol object to clone.
- * @returns {Object} Returns the cloned symbol object.
- */
-function cloneSymbol(symbol) {
-  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
-}
-
-/**
- * Creates a clone of `typedArray`.
- *
- * @private
- * @param {Object} typedArray The typed array to clone.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the cloned typed array.
- */
-function cloneTypedArray(typedArray, isDeep) {
-  var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
-  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
-}
-
-/**
- * Copies the values of `source` to `array`.
- *
- * @private
- * @param {Array} source The array to copy values from.
- * @param {Array} [array=[]] The array to copy values to.
- * @returns {Array} Returns `array`.
- */
-function copyArray(source, array) {
-  var index = -1,
-      length = source.length;
-
-  array || (array = Array(length));
-  while (++index < length) {
-    array[index] = source[index];
-  }
-  return array;
-}
-
-/**
- * Copies properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy properties from.
- * @param {Array} props The property identifiers to copy.
- * @param {Object} [object={}] The object to copy properties to.
- * @param {Function} [customizer] The function to customize copied values.
- * @returns {Object} Returns `object`.
- */
-function copyObject(source, props, object, customizer) {
-  object || (object = {});
-
-  var index = -1,
-      length = props.length;
-
-  while (++index < length) {
-    var key = props[index];
-
-    var newValue = customizer
-      ? customizer(object[key], source[key], key, object, source)
-      : source[key];
-
-    assignValue(object, key, newValue);
-  }
-  return object;
-}
-
-/**
- * Copies own symbol properties of `source` to `object`.
- *
- * @private
- * @param {Object} source The object to copy symbols from.
- * @param {Object} [object={}] The object to copy symbols to.
- * @returns {Object} Returns `object`.
- */
-function copySymbols(source, object) {
-  return copyObject(source, getSymbols(source), object);
-}
-
-/**
- * Creates an array of own enumerable property names and symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function getAllKeys(object) {
-  return baseGetAllKeys(object, keys, getSymbols);
-}
-
-/**
- * Gets the "length" property value of `object`.
- *
- * **Note:** This function is used to avoid a
- * [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
- * Safari on at least iOS 8.1-8.3 ARM64.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {*} Returns the "length" value.
- */
-var getLength = baseProperty('length');
-
-/**
- * Gets the data for `map`.
- *
- * @private
- * @param {Object} map The map to query.
- * @param {string} key The reference key.
- * @returns {*} Returns the map data.
- */
-function getMapData(map, key) {
-  var data = map.__data__;
-  return isKeyable(key)
-    ? data[typeof key == 'string' ? 'string' : 'hash']
-    : data.map;
-}
-
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = object[key];
-  return isNative(value) ? value : undefined;
-}
-
-/**
- * Gets the `[[Prototype]]` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {null|Object} Returns the `[[Prototype]]`.
- */
-function getPrototype(value) {
-  return nativeGetPrototype(Object(value));
-}
-
-/**
- * Creates an array of the own enumerable symbol properties of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of symbols.
- */
-function getSymbols(object) {
-  // Coerce `object` to an object to avoid non-object errors in V8.
-  // See https://bugs.chromium.org/p/v8/issues/detail?id=3443 for more details.
-  return getOwnPropertySymbols(Object(object));
-}
-
-// Fallback for IE < 11.
-if (!getOwnPropertySymbols) {
-  getSymbols = function() {
-    return [];
-  };
-}
-
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-function getTag(value) {
-  return objectToString.call(value);
-}
-
-// Fallback for data views, maps, sets, and weak maps in IE 11,
-// for data views in Edge, and promises in Node.js.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-    (Map && getTag(new Map) != mapTag) ||
-    (Promise && getTag(Promise.resolve()) != promiseTag) ||
-    (Set && getTag(new Set) != setTag) ||
-    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-  getTag = function(value) {
-    var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : undefined;
-
-    if (ctorString) {
-      switch (ctorString) {
-        case dataViewCtorString: return dataViewTag;
-        case mapCtorString: return mapTag;
-        case promiseCtorString: return promiseTag;
-        case setCtorString: return setTag;
-        case weakMapCtorString: return weakMapTag;
-      }
-    }
-    return result;
-  };
-}
-
-/**
- * Initializes an array clone.
- *
- * @private
- * @param {Array} array The array to clone.
- * @returns {Array} Returns the initialized clone.
- */
-function initCloneArray(array) {
-  var length = array.length,
-      result = array.constructor(length);
-
-  // Add properties assigned by `RegExp#exec`.
-  if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
-    result.index = array.index;
-    result.input = array.input;
-  }
-  return result;
-}
-
-/**
- * Initializes an object clone.
- *
- * @private
- * @param {Object} object The object to clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneObject(object) {
-  return (typeof object.constructor == 'function' && !isPrototype(object))
-    ? baseCreate(getPrototype(object))
-    : {};
-}
-
-/**
- * Initializes an object clone based on its `toStringTag`.
- *
- * **Note:** This function only supports cloning values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to clone.
- * @param {string} tag The `toStringTag` of the object to clone.
- * @param {Function} cloneFunc The function to clone values.
- * @param {boolean} [isDeep] Specify a deep clone.
- * @returns {Object} Returns the initialized clone.
- */
-function initCloneByTag(object, tag, cloneFunc, isDeep) {
-  var Ctor = object.constructor;
-  switch (tag) {
-    case arrayBufferTag:
-      return cloneArrayBuffer(object);
-
-    case boolTag:
-    case dateTag:
-      return new Ctor(+object);
-
-    case dataViewTag:
-      return cloneDataView(object, isDeep);
-
-    case float32Tag: case float64Tag:
-    case int8Tag: case int16Tag: case int32Tag:
-    case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
-      return cloneTypedArray(object, isDeep);
-
-    case mapTag:
-      return cloneMap(object, isDeep, cloneFunc);
-
-    case numberTag:
-    case stringTag:
-      return new Ctor(object);
-
-    case regexpTag:
-      return cloneRegExp(object);
-
-    case setTag:
-      return cloneSet(object, isDeep, cloneFunc);
-
-    case symbolTag:
-      return cloneSymbol(object);
-  }
-}
-
-/**
- * Creates an array of index keys for `object` values of arrays,
- * `arguments` objects, and strings, otherwise `null` is returned.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array|null} Returns index keys, else `null`.
- */
-function indexKeys(object) {
-  var length = object ? object.length : undefined;
-  if (isLength(length) &&
-      (isArray(object) || isString(object) || isArguments(object))) {
-    return baseTimes(length, String);
-  }
-  return null;
-}
-
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return !!length &&
-    (typeof value == 'number' || reIsUint.test(value)) &&
-    (value > -1 && value % 1 == 0 && value < length);
-}
-
-/**
- * Checks if `value` is suitable for use as unique object key.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
- */
-function isKeyable(value) {
-  var type = typeof value;
-  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
-    ? (value !== '__proto__')
-    : (value === null);
-}
-
-/**
- * Checks if `value` is likely a prototype object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
- */
-function isPrototype(value) {
-  var Ctor = value && value.constructor,
-      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
-
-  return value === proto;
-}
-
-/**
- * Converts `func` to its source code.
- *
- * @private
- * @param {Function} func The function to process.
- * @returns {string} Returns the source code.
- */
-function toSource(func) {
-  if (func != null) {
-    try {
-      return funcToString.call(func);
-    } catch (e) {}
-    try {
-      return (func + '');
-    } catch (e) {}
-  }
-  return '';
-}
-
-/**
- * Performs a
- * [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
- * comparison between two values to determine if they are equivalent.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'user': 'fred' };
- * var other = { 'user': 'fred' };
- *
- * _.eq(object, object);
- * // => true
- *
- * _.eq(object, other);
- * // => false
- *
- * _.eq('a', 'a');
- * // => true
- *
- * _.eq('a', Object('a'));
- * // => false
- *
- * _.eq(NaN, NaN);
- * // => true
- */
-function eq(value, other) {
-  return value === other || (value !== value && other !== other);
-}
-
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified,
- *  else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-function isArguments(value) {
-  // Safari 8.1 incorrectly makes `arguments.callee` enumerable in strict mode.
-  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
-
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @type {Function}
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified,
- *  else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(document.body.children);
- * // => false
- *
- * _.isArray('abc');
- * // => false
- *
- * _.isArray(_.noop);
- * // => false
- */
-var isArray = Array.isArray;
-
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
-  return value != null && isLength(getLength(value)) && !isFunction(value);
-}
-
-/**
- * This method is like `_.isArrayLike` except that it also checks if `value`
- * is an object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object,
- *  else `false`.
- * @example
- *
- * _.isArrayLikeObject([1, 2, 3]);
- * // => true
- *
- * _.isArrayLikeObject(document.body.children);
- * // => true
- *
- * _.isArrayLikeObject('abc');
- * // => false
- *
- * _.isArrayLikeObject(_.noop);
- * // => false
- */
-function isArrayLikeObject(value) {
-  return isObjectLike(value) && isArrayLike(value);
-}
-
-/**
- * Checks if `value` is a buffer.
- *
- * @static
- * @memberOf _
- * @since 4.3.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
- * @example
- *
- * _.isBuffer(new Buffer(2));
- * // => true
- *
- * _.isBuffer(new Uint8Array(2));
- * // => false
- */
-var isBuffer = !Buffer ? constant(false) : function(value) {
-  return value instanceof Buffer;
-};
-
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified,
- *  else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 8 which returns 'object' for typed array and weak map constructors,
-  // and PhantomJS 1.9 which returns 'function' for `NodeList` instances.
-  var tag = isObject(value) ? objectToString.call(value) : '';
-  return tag == funcTag || tag == genTag;
-}
-
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This function is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length,
- *  else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
-  return typeof value == 'number' &&
-    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
-
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
-}
-
-/**
- * Checks if `value` is a native function.
- *
- * @static
- * @memberOf _
- * @since 3.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function,
- *  else `false`.
- * @example
- *
- * _.isNative(Array.prototype.push);
- * // => true
- *
- * _.isNative(_);
- * // => false
- */
-function isNative(value) {
-  if (!isObject(value)) {
-    return false;
-  }
-  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
-  return pattern.test(toSource(value));
-}
-
-/**
- * Checks if `value` is classified as a `String` primitive or object.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is correctly classified,
- *  else `false`.
- * @example
- *
- * _.isString('abc');
- * // => true
- *
- * _.isString(1);
- * // => false
- */
-function isString(value) {
-  return typeof value == 'string' ||
-    (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
-}
-
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
-function keys(object) {
-  var isProto = isPrototype(object);
-  if (!(isProto || isArrayLike(object))) {
-    return baseKeys(object);
-  }
-  var indexes = indexKeys(object),
-      skipIndexes = !!indexes,
-      result = indexes || [],
-      length = result.length;
-
-  for (var key in object) {
-    if (baseHas(object, key) &&
-        !(skipIndexes && (key == 'length' || isIndex(key, length))) &&
-        !(isProto && key == 'constructor')) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * Creates a function that returns `value`.
- *
- * @static
- * @memberOf _
- * @since 2.4.0
- * @category Util
- * @param {*} value The value to return from the new function.
- * @returns {Function} Returns the new constant function.
- * @example
- *
- * var object = { 'user': 'fred' };
- * var getter = _.constant(object);
- *
- * getter() === object;
- * // => true
- */
-function constant(value) {
-  return function() {
-    return value;
-  };
-}
-
-module.exports = baseClone;
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(163)(module)))
-
-/***/ }),
-/* 749 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/**
- * lodash 4.3.2 (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <https://lodash.com/license>
- */
-var baseClone = __webpack_require__(748);
-
-/**
- * Creates a shallow clone of `value`.
- *
- * **Note:** This method is loosely based on the
- * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
- * and supports cloning arrays, array buffers, booleans, date objects, maps,
- * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
- * arrays. The own enumerable properties of `arguments` objects are cloned
- * as plain objects. An empty object is returned for uncloneable values such
- * as error objects, functions, DOM nodes, and WeakMaps.
- *
- * @static
- * @memberOf _
- * @category Lang
- * @param {*} value The value to clone.
- * @returns {*} Returns the cloned value.
- * @example
- *
- * var objects = [{ 'a': 1 }, { 'b': 2 }];
- *
- * var shallow = _.clone(objects);
- * console.log(shallow[0] === objects[0]);
- * // => true
- */
-function clone(value) {
-  return baseClone(value, false, true);
-}
-
-module.exports = clone;
-
-
-/***/ }),
-/* 750 */
-/***/ (function(module, exports) {
-
-/**
- * lodash (Custom Build) <https://lodash.com/>
- * Build: `lodash modularize exports="npm" -o ./`
- * Copyright jQuery Foundation and other contributors <https://jquery.org/>
- * Released under MIT license <https://lodash.com/license>
- * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
- * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- */
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]',
-    mapTag = '[object Map]',
-    objectTag = '[object Object]',
-    promiseTag = '[object Promise]',
-    setTag = '[object Set]',
-    stringTag = '[object String]',
-    weakMapTag = '[object WeakMap]';
-
-var dataViewTag = '[object DataView]';
-
-/**
- * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
- */
-var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
-
-/** Used to detect host constructors (Safari). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-/** Used to detect unsigned integer values. */
-var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-/** Used to compose unicode character classes. */
-var rsAstralRange = '\\ud800-\\udfff',
-    rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
-    rsComboSymbolsRange = '\\u20d0-\\u20f0',
-    rsVarRange = '\\ufe0e\\ufe0f';
-
-/** Used to compose unicode capture groups. */
-var rsAstral = '[' + rsAstralRange + ']',
-    rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
-    rsFitz = '\\ud83c[\\udffb-\\udfff]',
-    rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
-    rsNonAstral = '[^' + rsAstralRange + ']',
-    rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
-    rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
-    rsZWJ = '\\u200d';
-
-/** Used to compose unicode regexes. */
-var reOptMod = rsModifier + '?',
-    rsOptVar = '[' + rsVarRange + ']?',
-    rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
-    rsSeq = rsOptVar + reOptMod + rsOptJoin,
-    rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
-
-/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
-var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
-
-/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
-
-/** Detect free variable `global` from Node.js. */
-var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
-
-/** Detect free variable `self`. */
-var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-/** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
-
-/**
- * A specialized version of `_.map` for arrays without support for iteratee
- * shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the new mapped array.
- */
-function arrayMap(array, iteratee) {
-  var index = -1,
-      length = array ? array.length : 0,
-      result = Array(length);
-
-  while (++index < length) {
-    result[index] = iteratee(array[index], index, array);
-  }
-  return result;
-}
-
-/**
- * Converts an ASCII `string` to an array.
- *
- * @private
- * @param {string} string The string to convert.
- * @returns {Array} Returns the converted array.
- */
-function asciiToArray(string) {
-  return string.split('');
-}
-
-/**
- * The base implementation of `_.times` without support for iteratee shorthands
- * or max array length checks.
- *
- * @private
- * @param {number} n The number of times to invoke `iteratee`.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the array of results.
- */
-function baseTimes(n, iteratee) {
-  var index = -1,
-      result = Array(n);
-
-  while (++index < n) {
-    result[index] = iteratee(index);
-  }
-  return result;
-}
-
-/**
- * The base implementation of `_.values` and `_.valuesIn` which creates an
- * array of `object` property values corresponding to the property names
- * of `props`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Array} props The property names to get values for.
- * @returns {Object} Returns the array of property values.
- */
-function baseValues(object, props) {
-  return arrayMap(props, function(key) {
-    return object[key];
-  });
-}
-
-/**
- * Gets the value at `key` of `object`.
- *
- * @private
- * @param {Object} [object] The object to query.
- * @param {string} key The key of the property to get.
- * @returns {*} Returns the property value.
- */
-function getValue(object, key) {
-  return object == null ? undefined : object[key];
-}
-
-/**
- * Checks if `string` contains Unicode symbols.
- *
- * @private
- * @param {string} string The string to inspect.
- * @returns {boolean} Returns `true` if a symbol is found, else `false`.
- */
-function hasUnicode(string) {
-  return reHasUnicode.test(string);
-}
-
-/**
- * Checks if `value` is a host object in IE < 9.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a host object, else `false`.
- */
-function isHostObject(value) {
-  // Many host objects are `Object` objects that can coerce to strings
-  // despite having improperly defined `toString` methods.
-  var result = false;
-  if (value != null && typeof value.toString != 'function') {
-    try {
-      result = !!(value + '');
-    } catch (e) {}
-  }
-  return result;
-}
-
-/**
- * Converts `iterator` to an array.
- *
- * @private
- * @param {Object} iterator The iterator to convert.
- * @returns {Array} Returns the converted array.
- */
-function iteratorToArray(iterator) {
-  var data,
-      result = [];
-
-  while (!(data = iterator.next()).done) {
-    result.push(data.value);
-  }
-  return result;
-}
-
-/**
- * Converts `map` to its key-value pairs.
- *
- * @private
- * @param {Object} map The map to convert.
- * @returns {Array} Returns the key-value pairs.
- */
-function mapToArray(map) {
-  var index = -1,
-      result = Array(map.size);
-
-  map.forEach(function(value, key) {
-    result[++index] = [key, value];
-  });
-  return result;
-}
-
-/**
- * Creates a unary function that invokes `func` with its argument transformed.
- *
- * @private
- * @param {Function} func The function to wrap.
- * @param {Function} transform The argument transform.
- * @returns {Function} Returns the new function.
- */
-function overArg(func, transform) {
-  return function(arg) {
-    return func(transform(arg));
-  };
-}
-
-/**
- * Converts `set` to an array of its values.
- *
- * @private
- * @param {Object} set The set to convert.
- * @returns {Array} Returns the values.
- */
-function setToArray(set) {
-  var index = -1,
-      result = Array(set.size);
-
-  set.forEach(function(value) {
-    result[++index] = value;
-  });
-  return result;
-}
-
-/**
- * Converts `string` to an array.
- *
- * @private
- * @param {string} string The string to convert.
- * @returns {Array} Returns the converted array.
- */
-function stringToArray(string) {
-  return hasUnicode(string)
-    ? unicodeToArray(string)
-    : asciiToArray(string);
-}
-
-/**
- * Converts a Unicode `string` to an array.
- *
- * @private
- * @param {string} string The string to convert.
- * @returns {Array} Returns the converted array.
- */
-function unicodeToArray(string) {
-  return string.match(reUnicode) || [];
-}
-
-/** Used for built-in method references. */
-var funcProto = Function.prototype,
-    objectProto = Object.prototype;
-
-/** Used to detect overreaching core-js shims. */
-var coreJsData = root['__core-js_shared__'];
-
-/** Used to detect methods masquerading as native. */
-var maskSrcKey = (function() {
-  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
-  return uid ? ('Symbol(src)_1.' + uid) : '';
-}());
-
-/** Used to resolve the decompiled source of functions. */
-var funcToString = funcProto.toString;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var objectToString = objectProto.toString;
-
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
-
-/** Built-in value references. */
-var Symbol = root.Symbol,
-    iteratorSymbol = Symbol ? Symbol.iterator : undefined,
-    propertyIsEnumerable = objectProto.propertyIsEnumerable;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeKeys = overArg(Object.keys, Object);
-
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView'),
-    Map = getNative(root, 'Map'),
-    Promise = getNative(root, 'Promise'),
-    Set = getNative(root, 'Set'),
-    WeakMap = getNative(root, 'WeakMap');
-
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
-    mapCtorString = toSource(Map),
-    promiseCtorString = toSource(Promise),
-    setCtorString = toSource(Set),
-    weakMapCtorString = toSource(WeakMap);
-
-/**
- * Creates an array of the enumerable property names of the array-like `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @param {boolean} inherited Specify returning inherited property names.
- * @returns {Array} Returns the array of property names.
- */
-function arrayLikeKeys(value, inherited) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  // Safari 9 makes `arguments.length` enumerable in strict mode.
-  var result = (isArray(value) || isArguments(value))
-    ? baseTimes(value.length, String)
-    : [];
-
-  var length = result.length,
-      skipIndexes = !!length;
-
-  for (var key in value) {
-    if ((inherited || hasOwnProperty.call(value, key)) &&
-        !(skipIndexes && (key == 'length' || isIndex(key, length)))) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * The base implementation of `getTag`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-function baseGetTag(value) {
-  return objectToString.call(value);
-}
-
-/**
- * The base implementation of `_.isNative` without bad shim checks.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function,
- *  else `false`.
- */
-function baseIsNative(value) {
-  if (!isObject(value) || isMasked(value)) {
-    return false;
-  }
-  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
-  return pattern.test(toSource(value));
-}
-
-/**
- * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- */
-function baseKeys(object) {
-  if (!isPrototype(object)) {
-    return nativeKeys(object);
-  }
-  var result = [];
-  for (var key in Object(object)) {
-    if (hasOwnProperty.call(object, key) && key != 'constructor') {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-/**
- * Copies the values of `source` to `array`.
- *
- * @private
- * @param {Array} source The array to copy values from.
- * @param {Array} [array=[]] The array to copy values to.
- * @returns {Array} Returns `array`.
- */
-function copyArray(source, array) {
-  var index = -1,
-      length = source.length;
-
-  array || (array = Array(length));
-  while (++index < length) {
-    array[index] = source[index];
-  }
-  return array;
-}
-
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = getValue(object, key);
-  return baseIsNative(value) ? value : undefined;
-}
-
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-var getTag = baseGetTag;
-
-// Fallback for data views, maps, sets, and weak maps in IE 11,
-// for data views in Edge < 14, and promises in Node.js.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-    (Map && getTag(new Map) != mapTag) ||
-    (Promise && getTag(Promise.resolve()) != promiseTag) ||
-    (Set && getTag(new Set) != setTag) ||
-    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-  getTag = function(value) {
-    var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : undefined;
-
-    if (ctorString) {
-      switch (ctorString) {
-        case dataViewCtorString: return dataViewTag;
-        case mapCtorString: return mapTag;
-        case promiseCtorString: return promiseTag;
-        case setCtorString: return setTag;
-        case weakMapCtorString: return weakMapTag;
-      }
-    }
-    return result;
-  };
-}
-
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return !!length &&
-    (typeof value == 'number' || reIsUint.test(value)) &&
-    (value > -1 && value % 1 == 0 && value < length);
-}
-
-/**
- * Checks if `func` has its source masked.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` is masked, else `false`.
- */
-function isMasked(func) {
-  return !!maskSrcKey && (maskSrcKey in func);
-}
-
-/**
- * Checks if `value` is likely a prototype object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
- */
-function isPrototype(value) {
-  var Ctor = value && value.constructor,
-      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
-
-  return value === proto;
-}
-
-/**
- * Converts `func` to its source code.
- *
- * @private
- * @param {Function} func The function to process.
- * @returns {string} Returns the source code.
- */
-function toSource(func) {
-  if (func != null) {
-    try {
-      return funcToString.call(func);
-    } catch (e) {}
-    try {
-      return (func + '');
-    } catch (e) {}
-  }
-  return '';
-}
-
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- *  else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-function isArguments(value) {
-  // Safari 8.1 makes `arguments.callee` enumerable in strict mode.
-  return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
-    (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
-}
-
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(document.body.children);
- * // => false
- *
- * _.isArray('abc');
- * // => false
- *
- * _.isArray(_.noop);
- * // => false
- */
-var isArray = Array.isArray;
-
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
-  return value != null && isLength(value.length) && !isFunction(value);
-}
-
-/**
- * This method is like `_.isArrayLike` except that it also checks if `value`
- * is an object.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array-like object,
- *  else `false`.
- * @example
- *
- * _.isArrayLikeObject([1, 2, 3]);
- * // => true
- *
- * _.isArrayLikeObject(document.body.children);
- * // => true
- *
- * _.isArrayLikeObject('abc');
- * // => false
- *
- * _.isArrayLikeObject(_.noop);
- * // => false
- */
-function isArrayLikeObject(value) {
-  return isObjectLike(value) && isArrayLike(value);
-}
-
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a function, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 8-9 which returns 'object' for typed array and other constructors.
-  var tag = isObject(value) ? objectToString.call(value) : '';
-  return tag == funcTag || tag == genTag;
-}
-
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This method is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
-  return typeof value == 'number' &&
-    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
-
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-  var type = typeof value;
-  return !!value && (type == 'object' || type == 'function');
-}
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-  return !!value && typeof value == 'object';
-}
-
-/**
- * Checks if `value` is classified as a `String` primitive or object.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a string, else `false`.
- * @example
- *
- * _.isString('abc');
- * // => true
- *
- * _.isString(1);
- * // => false
- */
-function isString(value) {
-  return typeof value == 'string' ||
-    (!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
-}
-
-/**
- * Converts `value` to an array.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Lang
- * @param {*} value The value to convert.
- * @returns {Array} Returns the converted array.
- * @example
- *
- * _.toArray({ 'a': 1, 'b': 2 });
- * // => [1, 2]
- *
- * _.toArray('abc');
- * // => ['a', 'b', 'c']
- *
- * _.toArray(1);
- * // => []
- *
- * _.toArray(null);
- * // => []
- */
-function toArray(value) {
-  if (!value) {
-    return [];
-  }
-  if (isArrayLike(value)) {
-    return isString(value) ? stringToArray(value) : copyArray(value);
-  }
-  if (iteratorSymbol && value[iteratorSymbol]) {
-    return iteratorToArray(value[iteratorSymbol]());
-  }
-  var tag = getTag(value),
-      func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
-
-  return func(value);
-}
-
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
-function keys(object) {
-  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
-}
-
-/**
- * Creates an array of the own enumerable string keyed property values of `object`.
- *
- * **Note:** Non-object values are coerced to objects.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property values.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.values(new Foo);
- * // => [1, 2] (iteration order is not guaranteed)
- *
- * _.values('hi');
- * // => ['h', 'i']
- */
-function values(object) {
-  return object ? baseValues(object, keys(object)) : [];
-}
-
-module.exports = toArray;
-
-
-/***/ }),
-/* 751 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var crypto = __webpack_require__(11)
-var max = Math.pow(2, 32)
-
-module.exports = random
-module.exports.cryptographic = true
-
-function random () {
-  var buf = crypto
-    .randomBytes(4)
-    .toString('hex')
-
-  return parseInt(buf, 16) / max
-}
-
-
-/***/ }),
-/* 752 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var chars = {}, unesc, temp;
-
-function reverse(object, prepender) {
-  return Object.keys(object).reduce(function(reversed, key) {
-    var newKey = prepender ? prepender + key : key; // Optionally prepend a string to key.
-    reversed[object[key]] = newKey; // Swap key and value.
-    return reversed; // Return the result.
-  }, {});
-}
-
-/**
- * Regex for common characters
- */
-
-chars.escapeRegex = {
-  '?': /\?/g,
-  '@': /\@/g,
-  '!': /\!/g,
-  '+': /\+/g,
-  '*': /\*/g,
-  '(': /\(/g,
-  ')': /\)/g,
-  '[': /\[/g,
-  ']': /\]/g
-};
-
-/**
- * Escape characters
- */
-
-chars.ESC = {
-  '?': '__UNESC_QMRK__',
-  '@': '__UNESC_AMPE__',
-  '!': '__UNESC_EXCL__',
-  '+': '__UNESC_PLUS__',
-  '*': '__UNESC_STAR__',
-  ',': '__UNESC_COMMA__',
-  '(': '__UNESC_LTPAREN__',
-  ')': '__UNESC_RTPAREN__',
-  '[': '__UNESC_LTBRACK__',
-  ']': '__UNESC_RTBRACK__'
-};
-
-/**
- * Unescape characters
- */
-
-chars.UNESC = unesc || (unesc = reverse(chars.ESC, '\\'));
-
-chars.ESC_TEMP = {
-  '?': '__TEMP_QMRK__',
-  '@': '__TEMP_AMPE__',
-  '!': '__TEMP_EXCL__',
-  '*': '__TEMP_STAR__',
-  '+': '__TEMP_PLUS__',
-  ',': '__TEMP_COMMA__',
-  '(': '__TEMP_LTPAREN__',
-  ')': '__TEMP_RTPAREN__',
-  '[': '__TEMP_LTBRACK__',
-  ']': '__TEMP_RTBRACK__'
-};
-
-chars.TEMP = temp || (temp = reverse(chars.ESC_TEMP));
-
-module.exports = chars;
-
-
-/***/ }),
-/* 753 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * micromatch <https://github.com/jonschlinkert/micromatch>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var utils = __webpack_require__(300);
-var Glob = __webpack_require__(754);
-
-/**
- * Expose `expand`
- */
-
-module.exports = expand;
-
-/**
- * Expand a glob pattern to resolve braces and
- * similar patterns before converting to regex.
- *
- * @param  {String|Array} `pattern`
- * @param  {Array} `files`
- * @param  {Options} `opts`
- * @return {Array}
- */
-
-function expand(pattern, options) {
-  if (typeof pattern !== 'string') {
-    throw new TypeError('micromatch.expand(): argument should be a string.');
-  }
-
-  var glob = new Glob(pattern, options || {});
-  var opts = glob.options;
-
-  if (!utils.isGlob(pattern)) {
-    glob.pattern = glob.pattern.replace(/([\/.])/g, '\\$1');
-    return glob;
-  }
-
-  glob.pattern = glob.pattern.replace(/(\+)(?!\()/g, '\\$1');
-  glob.pattern = glob.pattern.split('$').join('\\$');
-
-  if (typeof opts.braces !== 'boolean' && typeof opts.nobraces !== 'boolean') {
-    opts.braces = true;
-  }
-
-  if (glob.pattern === '.*') {
-    return {
-      pattern: '\\.' + star,
-      tokens: tok,
-      options: opts
-    };
-  }
-
-  if (glob.pattern === '*') {
-    return {
-      pattern: oneStar(opts.dot),
-      tokens: tok,
-      options: opts
-    };
-  }
-
-  // parse the glob pattern into tokens
-  glob.parse();
-  var tok = glob.tokens;
-  tok.is.negated = opts.negated;
-
-  // dotfile handling
-  if ((opts.dotfiles === true || tok.is.dotfile) && opts.dot !== false) {
-    opts.dotfiles = true;
-    opts.dot = true;
-  }
-
-  if ((opts.dotdirs === true || tok.is.dotdir) && opts.dot !== false) {
-    opts.dotdirs = true;
-    opts.dot = true;
-  }
-
-  // check for braces with a dotfile pattern
-  if (/[{,]\./.test(glob.pattern)) {
-    opts.makeRe = false;
-    opts.dot = true;
-  }
-
-  if (opts.nonegate !== true) {
-    opts.negated = glob.negated;
-  }
-
-  // if the leading character is a dot or a slash, escape it
-  if (glob.pattern.charAt(0) === '.' && glob.pattern.charAt(1) !== '/') {
-    glob.pattern = '\\' + glob.pattern;
-  }
-
-  /**
-   * Extended globs
-   */
-
-  // expand braces, e.g `{1..5}`
-  glob.track('before braces');
-  if (tok.is.braces) {
-    glob.braces();
-  }
-  glob.track('after braces');
-
-  // expand extglobs, e.g `foo/!(a|b)`
-  glob.track('before extglob');
-  if (tok.is.extglob) {
-    glob.extglob();
-  }
-  glob.track('after extglob');
-
-  // expand brackets, e.g `[[:alpha:]]`
-  glob.track('before brackets');
-  if (tok.is.brackets) {
-    glob.brackets();
-  }
-  glob.track('after brackets');
-
-  // special patterns
-  glob._replace('[!', '[^');
-  glob._replace('(?', '(%~');
-  glob._replace(/\[\]/, '\\[\\]');
-  glob._replace('/[', '/' + (opts.dot ? dotfiles : nodot) + '[', true);
-  glob._replace('/?', '/' + (opts.dot ? dotfiles : nodot) + '[^/]', true);
-  glob._replace('/.', '/(?=.)\\.', true);
-
-  // windows drives
-  glob._replace(/^(\w):([\\\/]+?)/gi, '(?=.)$1:$2', true);
-
-  // negate slashes in exclusion ranges
-  if (glob.pattern.indexOf('[^') !== -1) {
-    glob.pattern = negateSlash(glob.pattern);
-  }
-
-  if (opts.globstar !== false && glob.pattern === '**') {
-    glob.pattern = globstar(opts.dot);
-
-  } else {
-    glob.pattern = balance(glob.pattern, '[', ']');
-    glob.escape(glob.pattern);
-
-    // if the pattern has `**`
-    if (tok.is.globstar) {
-      glob.pattern = collapse(glob.pattern, '/**');
-      glob.pattern = collapse(glob.pattern, '**/');
-      glob._replace('/**/', '(?:/' + globstar(opts.dot) + '/|/)', true);
-      glob._replace(/\*{2,}/g, '**');
-
-      // 'foo/*'
-      glob._replace(/(\w+)\*(?!\/)/g, '$1[^/]*?', true);
-      glob._replace(/\*\*\/\*(\w)/g, globstar(opts.dot) + '\\/' + (opts.dot ? dotfiles : nodot) + '[^/]*?$1', true);
-
-      if (opts.dot !== true) {
-        glob._replace(/\*\*\/(.)/g, '(?:**\\/|)$1');
-      }
-
-      // 'foo/**' or '{**,*}', but not 'foo**'
-      if (tok.path.dirname !== '' || /,\*\*|\*\*,/.test(glob.orig)) {
-        glob._replace('**', globstar(opts.dot), true);
-      }
-    }
-
-    // ends with /*
-    glob._replace(/\/\*$/, '\\/' + oneStar(opts.dot), true);
-    // ends with *, no slashes
-    glob._replace(/(?!\/)\*$/, star, true);
-    // has 'n*.' (partial wildcard w/ file extension)
-    glob._replace(/([^\/]+)\*/, '$1' + oneStar(true), true);
-    // has '*'
-    glob._replace('*', oneStar(opts.dot), true);
-    glob._replace('?.', '?\\.', true);
-    glob._replace('?:', '?:', true);
-
-    glob._replace(/\?+/g, function(match) {
-      var len = match.length;
-      if (len === 1) {
-        return qmark;
-      }
-      return qmark + '{' + len + '}';
-    });
-
-    // escape '.abc' => '\\.abc'
-    glob._replace(/\.([*\w]+)/g, '\\.$1');
-    // fix '[^\\\\/]'
-    glob._replace(/\[\^[\\\/]+\]/g, qmark);
-    // '///' => '\/'
-    glob._replace(/\/+/g, '\\/');
-    // '\\\\\\' => '\\'
-    glob._replace(/\\{2,}/g, '\\');
-  }
-
-  // unescape previously escaped patterns
-  glob.unescape(glob.pattern);
-  glob._replace('__UNESC_STAR__', '*');
-
-  // escape dots that follow qmarks
-  glob._replace('?.', '?\\.');
-
-  // remove unnecessary slashes in character classes
-  glob._replace('[^\\/]', qmark);
-
-  if (glob.pattern.length > 1) {
-    if (/^[\[?*]/.test(glob.pattern)) {
-      // only prepend the string if we don't want to match dotfiles
-      glob.pattern = (opts.dot ? dotfiles : nodot) + glob.pattern;
-    }
-  }
-
-  return glob;
-}
-
-/**
- * Collapse repeated character sequences.
- *
- * ```js
- * collapse('a/../../../b', '../');
- * //=> 'a/../b'
- * ```
- *
- * @param  {String} `str`
- * @param  {String} `ch` Character sequence to collapse
- * @return {String}
- */
-
-function collapse(str, ch) {
-  var res = str.split(ch);
-  var isFirst = res[0] === '';
-  var isLast = res[res.length - 1] === '';
-  res = res.filter(Boolean);
-  if (isFirst) res.unshift('');
-  if (isLast) res.push('');
-  return res.join(ch);
-}
-
-/**
- * Negate slashes in exclusion ranges, per glob spec:
- *
- * ```js
- * negateSlash('[^foo]');
- * //=> '[^\\/foo]'
- * ```
- *
- * @param  {String} `str` glob pattern
- * @return {String}
- */
-
-function negateSlash(str) {
-  return str.replace(/\[\^([^\]]*?)\]/g, function(match, inner) {
-    if (inner.indexOf('/') === -1) {
-      inner = '\\/' + inner;
-    }
-    return '[^' + inner + ']';
-  });
-}
-
-/**
- * Escape imbalanced braces/bracket. This is a very
- * basic, naive implementation that only does enough
- * to serve the purpose.
- */
-
-function balance(str, a, b) {
-  var aarr = str.split(a);
-  var alen = aarr.join('').length;
-  var blen = str.split(b).join('').length;
-
-  if (alen !== blen) {
-    str = aarr.join('\\' + a);
-    return str.split(b).join('\\' + b);
-  }
-  return str;
-}
-
-/**
- * Special patterns to be converted to regex.
- * Heuristics are used to simplify patterns
- * and speed up processing.
- */
-
-/* eslint no-multi-spaces: 0 */
-var qmark       = '[^/]';
-var star        = qmark + '*?';
-var nodot       = '(?!\\.)(?=.)';
-var dotfileGlob = '(?:\\/|^)\\.{1,2}($|\\/)';
-var dotfiles    = '(?!' + dotfileGlob + ')(?=.)';
-var twoStarDot  = '(?:(?!' + dotfileGlob + ').)*?';
-
-/**
- * Create a regex for `*`.
- *
- * If `dot` is true, or the pattern does not begin with
- * a leading star, then return the simpler regex.
- */
-
-function oneStar(dotfile) {
-  return dotfile ? '(?!' + dotfileGlob + ')(?=.)' + star : (nodot + star);
-}
-
-function globstar(dotfile) {
-  if (dotfile) { return twoStarDot; }
-  return '(?:(?!(?:\\/|^)\\.).)*?';
-}
-
-
-/***/ }),
-/* 754 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var chars = __webpack_require__(752);
-var utils = __webpack_require__(300);
-
-/**
- * Expose `Glob`
- */
-
-var Glob = module.exports = function Glob(pattern, options) {
-  if (!(this instanceof Glob)) {
-    return new Glob(pattern, options);
-  }
-  this.options = options || {};
-  this.pattern = pattern;
-  this.history = [];
-  this.tokens = {};
-  this.init(pattern);
-};
-
-/**
- * Initialize defaults
- */
-
-Glob.prototype.init = function(pattern) {
-  this.orig = pattern;
-  this.negated = this.isNegated();
-  this.options.track = this.options.track || false;
-  this.options.makeRe = true;
-};
-
-/**
- * Push a change into `glob.history`. Useful
- * for debugging.
- */
-
-Glob.prototype.track = function(msg) {
-  if (this.options.track) {
-    this.history.push({msg: msg, pattern: this.pattern});
-  }
-};
-
-/**
- * Return true if `glob.pattern` was negated
- * with `!`, also remove the `!` from the pattern.
- *
- * @return {Boolean}
- */
-
-Glob.prototype.isNegated = function() {
-  if (this.pattern.charCodeAt(0) === 33 /* '!' */) {
-    this.pattern = this.pattern.slice(1);
-    return true;
-  }
-  return false;
-};
-
-/**
- * Expand braces in the given glob pattern.
- *
- * We only need to use the [braces] lib when
- * patterns are nested.
- */
-
-Glob.prototype.braces = function() {
-  if (this.options.nobraces !== true && this.options.nobrace !== true) {
-    // naive/fast check for imbalanced characters
-    var a = this.pattern.match(/[\{\(\[]/g);
-    var b = this.pattern.match(/[\}\)\]]/g);
-
-    // if imbalanced, don't optimize the pattern
-    if (a && b && (a.length !== b.length)) {
-      this.options.makeRe = false;
-    }
-
-    // expand brace patterns and join the resulting array
-    var expanded = utils.braces(this.pattern, this.options);
-    this.pattern = expanded.join('|');
-  }
-};
-
-/**
- * Expand bracket expressions in `glob.pattern`
- */
-
-Glob.prototype.brackets = function() {
-  if (this.options.nobrackets !== true) {
-    this.pattern = utils.brackets(this.pattern);
-  }
-};
-
-/**
- * Expand bracket expressions in `glob.pattern`
- */
-
-Glob.prototype.extglob = function() {
-  if (this.options.noextglob === true) return;
-
-  if (utils.isExtglob(this.pattern)) {
-    this.pattern = utils.extglob(this.pattern, {escape: true});
-  }
-};
-
-/**
- * Parse the given pattern
- */
-
-Glob.prototype.parse = function(pattern) {
-  this.tokens = utils.parseGlob(pattern || this.pattern, true);
-  return this.tokens;
-};
-
-/**
- * Replace `a` with `b`. Also tracks the change before and
- * after each replacement. This is disabled by default, but
- * can be enabled by setting `options.track` to true.
- *
- * Also, when the pattern is a string, `.split()` is used,
- * because it's much faster than replace.
- *
- * @param  {RegExp|String} `a`
- * @param  {String} `b`
- * @param  {Boolean} `escape` When `true`, escapes `*` and `?` in the replacement.
- * @return {String}
- */
-
-Glob.prototype._replace = function(a, b, escape) {
-  this.track('before (find): "' + a + '" (replace with): "' + b + '"');
-  if (escape) b = esc(b);
-  if (a && b && typeof a === 'string') {
-    this.pattern = this.pattern.split(a).join(b);
-  } else {
-    this.pattern = this.pattern.replace(a, b);
-  }
-  this.track('after');
-};
-
-/**
- * Escape special characters in the given string.
- *
- * @param  {String} `str` Glob pattern
- * @return {String}
- */
-
-Glob.prototype.escape = function(str) {
-  this.track('before escape: ');
-  var re = /["\\](['"]?[^"'\\]['"]?)/g;
-
-  this.pattern = str.replace(re, function($0, $1) {
-    var o = chars.ESC;
-    var ch = o && o[$1];
-    if (ch) {
-      return ch;
-    }
-    if (/[a-z]/i.test($0)) {
-      return $0.split('\\').join('');
-    }
-    return $0;
-  });
-
-  this.track('after escape: ');
-};
-
-/**
- * Unescape special characters in the given string.
- *
- * @param  {String} `str`
- * @return {String}
- */
-
-Glob.prototype.unescape = function(str) {
-  var re = /__([A-Z]+)_([A-Z]+)__/g;
-  this.pattern = str.replace(re, function($0, $1) {
-    return chars[$1][$0];
-  });
-  this.pattern = unesc(this.pattern);
-};
-
-/**
- * Escape/unescape utils
- */
-
-function esc(str) {
-  str = str.split('?').join('%~');
-  str = str.split('*').join('%%');
-  return str;
-}
-
-function unesc(str) {
-  str = str.split('%~').join('?');
-  str = str.split('%%').join('*');
-  return str;
-}
-
-
-/***/ }),
-/* 755 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * arr-diff <https://github.com/jonschlinkert/arr-diff>
- *
- * Copyright (c) 2014 Jon Schlinkert, contributors.
- * Licensed under the MIT License
- */
-
-
-
-var flatten = __webpack_require__(510);
-var slice = [].slice;
-
-/**
- * Return the difference between the first array and
- * additional arrays.
- *
- * ```js
- * var diff = require('{%= name %}');
- *
- * var a = ['a', 'b', 'c', 'd'];
- * var b = ['b', 'c'];
- *
- * console.log(diff(a, b))
- * //=> ['a', 'd']
- * ```
- *
- * @param  {Array} `a`
- * @param  {Array} `b`
- * @return {Array}
- * @api public
- */
-
-function diff(arr, arrays) {
-  var argsLen = arguments.length;
-  var len = arr.length, i = -1;
-  var res = [], arrays;
-
-  if (argsLen === 1) {
-    return arr;
-  }
-
-  if (argsLen > 2) {
-    arrays = flatten(slice.call(arguments, 1));
-  }
-
-  while (++i < len) {
-    if (!~arrays.indexOf(arr[i])) {
-      res.push(arr[i]);
-    }
-  }
-  return res;
-}
-
-/**
- * Expose `diff`
- */
-
-module.exports = diff;
-
-
-/***/ }),
-/* 756 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * array-unique <https://github.com/jonschlinkert/array-unique>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-module.exports = function unique(arr) {
-  if (!Array.isArray(arr)) {
-    throw new TypeError('array-unique expects an array.');
-  }
-
-  var len = arr.length;
-  var i = -1;
-
-  while (i++ < len) {
-    var j = i + 1;
-
-    for (; j < arr.length; ++j) {
-      if (arr[i] === arr[j]) {
-        arr.splice(j--, 1);
-      }
-    }
-  }
-  return arr;
-};
-
-
-/***/ }),
-/* 757 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * braces <https://github.com/jonschlinkert/braces>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT license.
- */
-
-
-
-/**
- * Module dependencies
- */
-
-var expand = __webpack_require__(640);
-var repeat = __webpack_require__(411);
-var tokens = __webpack_require__(778);
-
-/**
- * Expose `braces`
- */
-
-module.exports = function(str, options) {
-  if (typeof str !== 'string') {
-    throw new Error('braces expects a string');
-  }
-  return braces(str, options);
-};
-
-/**
- * Expand `{foo,bar}` or `{1..5}` braces in the
- * given `string`.
- *
- * @param  {String} `str`
- * @param  {Array} `arr`
- * @param  {Object} `options`
- * @return {Array}
- */
-
-function braces(str, arr, options) {
-  if (str === '') {
-    return [];
-  }
-
-  if (!Array.isArray(arr)) {
-    options = arr;
-    arr = [];
-  }
-
-  var opts = options || {};
-  arr = arr || [];
-
-  if (typeof opts.nodupes === 'undefined') {
-    opts.nodupes = true;
-  }
-
-  var fn = opts.fn;
-  var es6;
-
-  if (typeof opts === 'function') {
-    fn = opts;
-    opts = {};
-  }
-
-  if (!(patternRe instanceof RegExp)) {
-    patternRe = patternRegex();
-  }
-
-  var matches = str.match(patternRe) || [];
-  var m = matches[0];
-
-  switch(m) {
-    case '\\,':
-      return escapeCommas(str, arr, opts);
-    case '\\.':
-      return escapeDots(str, arr, opts);
-    case '\/.':
-      return escapePaths(str, arr, opts);
-    case ' ':
-      return splitWhitespace(str);
-    case '{,}':
-      return exponential(str, opts, braces);
-    case '{}':
-      return emptyBraces(str, arr, opts);
-    case '\\{':
-    case '\\}':
-      return escapeBraces(str, arr, opts);
-    case '${':
-      if (!/\{[^{]+\{/.test(str)) {
-        return arr.concat(str);
-      } else {
-        es6 = true;
-        str = tokens.before(str, es6Regex());
-      }
-  }
-
-  if (!(braceRe instanceof RegExp)) {
-    braceRe = braceRegex();
-  }
-
-  var match = braceRe.exec(str);
-  if (match == null) {
-    return [str];
-  }
-
-  var outter = match[1];
-  var inner = match[2];
-  if (inner === '') { return [str]; }
-
-  var segs, segsLength;
-
-  if (inner.indexOf('..') !== -1) {
-    segs = expand(inner, opts, fn) || inner.split(',');
-    segsLength = segs.length;
-
-  } else if (inner[0] === '"' || inner[0] === '\'') {
-    return arr.concat(str.split(/['"]/).join(''));
-
-  } else {
-    segs = inner.split(',');
-    if (opts.makeRe) {
-      return braces(str.replace(outter, wrap(segs, '|')), opts);
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-  var len = arr.length;
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-/***/ }),
-/* 759 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*!
- * mime-db
- * Copyright(c) 2014 Jonathan Ong
- * MIT Licensed
- */
-
-/**
- * Module exports.
- */
-
-module.exports = __webpack_require__(758)
-
-
-/***/ }),
-/* 760 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = (to, from) => {
-	// TODO: use `Reflect.ownKeys()` when targeting Node.js 6
-	for (const prop of Object.getOwnPropertyNames(from).concat(Object.getOwnPropertySymbols(from))) {
-		Object.defineProperty(to, prop, Object.getOwnPropertyDescriptor(from, prop));
-	}
-
-	return to;
-};
-
-
-/***/ }),
-/* 761 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-const mkdirp = __webpack_require__(145)
-
-module.exports = function (dir, opts) {
-  return new Promise((resolve, reject) => {
-    mkdirp(dir, opts, (err, made) => err === null ? resolve(made) : reject(err))
-  })
-}
-
-
-/***/ }),
-/* 762 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-var Promise = __webpack_require__(345)
-var fs
-try {
-  fs = __webpack_require__(391)
-} catch(err) {
-  fs = __webpack_require__(5)
-}
-
-var api = [
-  'appendFile',
-  'chmod',
-  'chown',
-  'close',
-  'fchmod',
-  'fchown',
-  'fdatasync',
-  'fstat',
-  'fsync',
-  'ftruncate',
-  'futimes',
-  'lchown',
-  'link',
-  'lstat',
-  'mkdir',
-  'open',
-  'read',
-  'readFile',
-  'readdir',
-  'readlink',
-  'realpath',
-  'rename',
-  'rmdir',
-  'stat',
-  'symlink',
-  'truncate',
-  'unlink',
-  'utimes',
-  'write',
-  'writeFile'
-]
-
-typeof fs.access === 'function' && api.push('access')
-typeof fs.copyFile === 'function' && api.push('copyFile')
-typeof fs.mkdtemp === 'function' && api.push('mkdtemp')
-
-__webpack_require__(951).withCallback(fs, exports, api)
-
-exports.exists = function (filename, callback) {
-  // callback
-  if (typeof callback === 'function') {
-    return fs.stat(filename, function (err) {
-      callback(null, !err);
-    })
-  }
-  // or promise
-  return new Promise(function (resolve) {
-    fs.stat(filename, function (err) {
-      resolve(!err)
-    })
-  })
-}
-
-
-/***/ }),
-/* 763 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*jslint node: true*/
-var toArray = __webpack_require__(750);
-var emojiByName = __webpack_require__(764);
-
-"use strict";
-
-/**
- * regex to parse emoji in a string - finds emoji, e.g. :coffee:
- */
-var emojiNameRegex = /:([a-zA-Z0-9_\-\+]+):/g;
-
-/**
- * regex to trim whitespace
- * use instead of String.prototype.trim() for IE8 supprt
- */
-var trimSpaceRegex = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
-
-/**
- * Removes colons on either side
- * of the string if present
- * @param  {string} str
- * @return {string}
- */
-function stripColons (str) {
-  var colonIndex = str.indexOf(':');
-  if (colonIndex > -1) {
-    // :emoji: (http://www.emoji-cheat-sheet.com/)
-    if (colonIndex === str.length - 1) {
-      str = str.substring(0, colonIndex);
-      return stripColons(str);
-    } else {
-      str = str.substr(colonIndex + 1);
-      return stripColons(str);
-    }
-  }
-
-  return str;
-}
-
-/**
- * Adds colons to either side
- * of the string
- * @param {string} str
- * @return {string}
- */
-function wrapColons (str) {
-  return (typeof str === 'string' && str.length > 0) ? ':' + str + ':' : str;
-}
-
-/**
- * Ensure that the word is wrapped in colons
- * by only adding them, if they are not there.
- * @param {string} str
- * @return {string}
- */
-function ensureColons (str) {
-  return (typeof str === 'string' && str[0] !== ':') ? wrapColons(str) : str;
-}
-
-// Non spacing mark, some emoticons have them. It's the 'Variant Form',
-// which provides more information so that emoticons can be rendered as
-// more colorful graphics. FE0E is a unicode text version, where as FE0F
-// should be rendered as a graphical version. The code gracefully degrades.
-var NON_SPACING_MARK = String.fromCharCode(65039); // 65039 - '️' - 0xFE0F;
-var nonSpacingRegex = new RegExp(NON_SPACING_MARK, 'g')
-
-// Remove the non-spacing-mark from the code, never send a stripped version
-// to the client, as it kills graphical emoticons.
-function stripNSB (code) {
-  return code.replace(nonSpacingRegex, '');
-};
-
-// Reversed hash table, where as emojiByName contains a { heart: '❤' }
-// dictionary emojiByCode contains { ❤: 'heart' }. The codes are normalized
-// to the text version.
-var emojiByCode = Object.keys(emojiByName).reduce(function(h,k) {
-  h[stripNSB(emojiByName[k])] = k;
-  return h;
-}, {});
-
-/**
- * Emoji namespace
- */
-var Emoji = {
-  emoji: emojiByName,
-};
-
-/**
- * get emoji code from name
- * @param  {string} emoji
- * @return {string}
- */
-Emoji._get = function _get (emoji) {
-  if (emojiByName.hasOwnProperty(emoji)) {
-    return emojiByName[emoji];
-  }
-
-  return ensureColons(emoji);
-};
-
-/**
- * get emoji code from :emoji: string or name
- * @param  {string} emoji
- * @return {string}
- */
-Emoji.get = function get (emoji) {
-  emoji = stripColons(emoji);
-
-  return Emoji._get(emoji);
-};
-
-/**
- * find the emoji by either code or name
- * @param {string} nameOrCode The emoji to find, either `coffee`, `:coffee:` or `☕`;
- * @return {object}
- */
-Emoji.find = function find (nameOrCode) {
-  return Emoji.findByName(nameOrCode) || Emoji.findByCode(nameOrCode);
-};
-
-/**
- * find the emoji by name
- * @param {string} name The emoji to find either `coffee` or `:coffee:`;
- * @return {object}
- */
-Emoji.findByName = function findByName (name) {
-  var stripped = stripColons(name);
-  var emoji = emojiByName[stripped];
-
-  return emoji ? ({ emoji: emoji, key: stripped }) : undefined;
-};
-
-/**
- * find the emoji by code (emoji)
- * @param {string} code The emoji to find; for example `☕` or `☔`
- * @return {object}
- */
-Emoji.findByCode = function findByCode (code) {
-  var stripped = stripNSB(code);
-  var name = emojiByCode[stripped];
-
-  // lookup emoji to ensure the Variant Form is returned
-  return name ? ({ emoji: emojiByName[name], key: name }) : undefined;
-};
-
-
-/**
- * Check if an emoji is known by this library
- * @param {string} nameOrCode The emoji to validate, either `coffee`, `:coffee:` or `☕`;
- * @return {object}
- */
-Emoji.hasEmoji = function hasEmoji (nameOrCode) {
-  return Emoji.hasEmojiByName(nameOrCode) || Emoji.hasEmojiByCode(nameOrCode);
-};
-
-/**
- * Check if an emoji with given name is known by this library
- * @param {string} name The emoji to validate either `coffee` or `:coffee:`;
- * @return {object}
- */
-Emoji.hasEmojiByName = function hasEmojiByName (name) {
-  var result = Emoji.findByName(name);
-  return !!result && result.key === stripColons(name);
-};
-
-/**
- * Check if a given emoji is known by this library
- * @param {string} code The emoji to validate; for example `☕` or `☔`
- * @return {object}
- */
-Emoji.hasEmojiByCode = function hasEmojiByCode (code) {
-  var result = Emoji.findByCode(code);
-  return !!result && stripNSB(result.emoji) === stripNSB(code);
-};
-
-/**
- * get emoji name from code
- * @param  {string} emoji
- * @param  {boolean} includeColons should the result include the ::
- * @return {string}
- */
-Emoji.which = function which (emoji_code, includeColons) {
-  var code = stripNSB(emoji_code);
-  var word = emojiByCode[code];
-
-  return includeColons ? wrapColons(word) : word;
-};
-
-/**
- * emojify a string (replace :emoji: with an emoji)
- * @param  {string} str
- * @param  {function} on_missing (gets emoji name without :: and returns a proper emoji if no emoji was found)
- * @param  {function} format (wrap the returned emoji in a custom element)
- * @return {string}
- */
-Emoji.emojify = function emojify (str, on_missing, format) {
-  if (!str) return '';
-
-  return str.split(emojiNameRegex) // parse emoji via regex
-            .map(function parseEmoji(s, i) {
-              // every second element is an emoji, e.g. "test :fast_forward:" -> [ "test ", "fast_forward" ]
-              if (i % 2 === 0) return s;
-              var emoji = Emoji._get(s);
-              var isMissing = emoji.indexOf(':') > -1;
-
-              if (isMissing && typeof on_missing === 'function') {
-                return on_missing(s);
-              }
-
-              if (!isMissing && typeof format === 'function') {
-                return format(emoji, s);
-              }
-
-              return emoji;
-            })
-            .join('') // convert back to string
-  ;
-};
-
-/**
- * return a random emoji
- * @return {string}
- */
-Emoji.random = function random () {
-  var emojiKeys = Object.keys(emojiByName);
-  var randomIndex = Math.floor(Math.random() * emojiKeys.length);
-  var key = emojiKeys[randomIndex];
-  var emoji = Emoji._get(key);
-  return { key: key, emoji: emoji };
-}
-
-/**
- *  return an collection of potential emoji matches
- *  @param {string} str
- *  @return {Array.<Object>}
- */
-Emoji.search = function search (str) {
-  var emojiKeys = Object.keys(emojiByName);
-  var matcher = stripColons(str)
-  var matchingKeys = emojiKeys.filter(function(key) {
-    return key.toString().indexOf(matcher) === 0;
-  });
-  return matchingKeys.map(function(key) {
-    return {
-      key: key,
-      emoji: Emoji._get(key),
-    };
-  });
-}
-
-/**
- * unemojify a string (replace emoji with :emoji:)
- * @param  {string} str
- * @return {string}
- */
-Emoji.unemojify = function unemojify (str) {
-  if (!str) return '';
-  var words = toArray(str);
-
-  return words.map(function(word) {
-    return Emoji.which(word, true) || word;
-  }).join('');
-};
-
-/**
- * replace emojis with replacement value
- * @param {string} str
- * @param {function|string} the string or callback function to replace the emoji with
- * @param {boolean} should trailing whitespaces be cleaned? Defaults false
- * @return {string}
- */
-Emoji.replace = function replace (str, replacement, cleanSpaces) {
-  if (!str) return '';
-
-  var replace = typeof replacement === 'function' ? replacement : function() { return replacement; };
-  var words = toArray(str);
-
-  var replaced = words.map(function(word, idx) {
-    var emoji = Emoji.findByCode(word);
-    
-    if (emoji && cleanSpaces && words[idx + 1] === ' ') {
-      words[idx + 1] = '';
-    }
-
-    return emoji ? replace(emoji) : word;
-  }).join('');
-
-  return cleanSpaces ? replaced.replace(trimSpaceRegex, '') : replaced;
-};
-
-
-/**
- * remove all emojis from a string
- * @param {string} str
- * @return {string}
- */
-Emoji.strip = function strip (str) {
-  return Emoji.replace(str, '', true);
-};
-
-module.exports = Emoji;
-
-
-/***/ }),
-/* 764 */
-/***/ (function(module, exports) {
-
-module.exports = {"100":"💯","1234":"🔢","interrobang":"⁉️","tm":"™️","information_source":"ℹ️","left_right_arrow":"↔️","arrow_up_down":"↕️","arrow_upper_left":"↖️","arrow_upper_right":"↗️","arrow_lower_right":"↘️","arrow_lower_left":"↙️","keyboard":"⌨","sunny":"☀️","cloud":"☁️","umbrella":"☔️","showman":"☃","comet":"☄","ballot_box_with_check":"☑️","coffee":"☕️","shamrock":"☘","skull_and_crossbones":"☠","radioactive_sign":"☢","biohazard_sign":"☣","orthodox_cross":"☦","wheel_of_dharma":"☸","white_frowning_face":"☹","aries":"♈️","taurus":"♉️","sagittarius":"♐️","capricorn":"♑️","aquarius":"♒️","pisces":"♓️","spades":"♠️","clubs":"♣️","hearts":"♥️","diamonds":"♦️","hotsprings":"♨️","hammer_and_pick":"⚒","anchor":"⚓️","crossed_swords":"⚔","scales":"⚖","alembic":"⚗","gear":"⚙","scissors":"✂️","white_check_mark":"✅","airplane":"✈️","email":"✉️","envelope":"✉️","black_nib":"✒️","heavy_check_mark":"✔️","heavy_multiplication_x":"✖️","star_of_david":"✡","sparkles":"✨","eight_spoked_asterisk":"✳️","eight_pointed_black_star":"✴️","snowflake":"❄️","sparkle":"❇️","question":"❓","grey_question":"❔","grey_exclamation":"❕","exclamation":"❗️","heavy_exclamation_mark":"❗️","heavy_heart_exclamation_mark_ornament":"❣","heart":"❤️","heavy_plus_sign":"➕","heavy_minus_sign":"➖","heavy_division_sign":"➗","arrow_heading_up":"⤴️","arrow_heading_down":"⤵️","wavy_dash":"〰️","congratulations":"㊗️","secret":"㊙️","copyright":"©️","registered":"®️","bangbang":"‼️","leftwards_arrow_with_hook":"↩️","arrow_right_hook":"↪️","watch":"⌚️","hourglass":"⌛️","fast_forward":"⏩","rewind":"⏪","arrow_double_up":"⏫","arrow_double_down":"⏬","black_right_pointing_double_triangle_with_vertical_bar":"⏭","black_left_pointing_double_triangle_with_vertical_bar":"⏮","black_right_pointing_triangle_with_double_vertical_bar":"⏯","alarm_clock":"⏰","stopwatch":"⏱","timer_clock":"⏲","hourglass_flowing_sand":"⏳","double_vertical_bar":"⏸","black_square_for_stop":"⏹","black_circle_for_record":"⏺","m":"Ⓜ️","black_small_square":"▪️","white_small_square":"▫️","arrow_forward":"▶️","arrow_backward":"◀️","white_medium_square":"◻️","black_medium_square":"◼️","white_medium_small_square":"◽️","black_medium_small_square":"◾️","phone":"☎️","telephone":"☎️","point_up":"☝️","star_and_crescent":"☪","peace_symbol":"☮","yin_yang":"☯","relaxed":"☺️","gemini":"♊️","cancer":"♋️","leo":"♌️","virgo":"♍️","libra":"♎️","scorpius":"♏️","recycle":"♻️","wheelchair":"♿️","atom_symbol":"⚛","fleur_de_lis":"⚜","warning":"⚠️","zap":"⚡️","white_circle":"⚪️","black_circle":"⚫️","coffin":"⚰","funeral_urn":"⚱","soccer":"⚽️","baseball":"⚾️","snowman":"⛄️","partly_sunny":"⛅️","thunder_cloud_and_rain":"⛈","ophiuchus":"⛎","pick":"⛏","helmet_with_white_cross":"⛑","chains":"⛓","no_entry":"⛔️","shinto_shrine":"⛩","church":"⛪️","mountain":"⛰","umbrella_on_ground":"⛱","fountain":"⛲️","golf":"⛳️","ferry":"⛴","boat":"⛵️","sailboat":"⛵️","skier":"⛷","ice_skate":"⛸","person_with_ball":"⛹","tent":"⛺️","fuelpump":"⛽️","fist":"✊","hand":"✋","raised_hand":"✋","v":"✌️","writing_hand":"✍","pencil2":"✏️","latin_cross":"✝","x":"❌","negative_squared_cross_mark":"❎","arrow_right":"➡️","curly_loop":"➰","loop":"➿","arrow_left":"⬅️","arrow_up":"⬆️","arrow_down":"⬇️","black_large_square":"⬛️","white_large_square":"⬜️","star":"⭐️","o":"⭕️","part_alternation_mark":"〽️","mahjong":"🀄️","black_joker":"🃏","a":"🅰️","b":"🅱️","o2":"🅾️","parking":"🅿️","ab":"🆎","cl":"🆑","cool":"🆒","free":"🆓","id":"🆔","new":"🆕","ng":"🆖","ok":"🆗","sos":"🆘","up":"🆙","vs":"🆚","koko":"🈁","sa":"🈂️","u7121":"🈚️","u6307":"🈯️","u7981":"🈲","u7a7a":"🈳","u5408":"🈴","u6e80":"🈵","u6709":"🈶","u6708":"🈷️","u7533":"🈸","u5272":"🈹","u55b6":"🈺","ideograph_advantage":"🉐","accept":"🉑","cyclone":"🌀","foggy":"🌁","closed_umbrella":"🌂","night_with_stars":"🌃","sunrise_over_mountains":"🌄","sunrise":"🌅","city_sunset":"🌆","city_sunrise":"🌇","rainbow":"🌈","bridge_at_night":"🌉","ocean":"🌊","volcano":"🌋","milky_way":"🌌","earth_africa":"🌍","earth_americas":"🌎","earth_asia":"🌏","globe_with_meridians":"🌐","new_moon":"🌑","waxing_crescent_moon":"🌒","first_quarter_moon":"🌓","moon":"🌔","waxing_gibbous_moon":"🌔","full_moon":"🌕","waning_gibbous_moon":"🌖","last_quarter_moon":"🌗","waning_crescent_moon":"🌘","crescent_moon":"🌙","new_moon_with_face":"🌚","first_quarter_moon_with_face":"🌛","last_quarter_moon_with_face":"🌜","full_moon_with_face":"🌝","sun_with_face":"🌞","star2":"🌟","stars":"🌠","thermometer":"🌡","mostly_sunny":"🌤","sun_small_cloud":"🌤","barely_sunny":"🌥","sun_behind_cloud":"🌥","partly_sunny_rain":"🌦","sun_behind_rain_cloud":"🌦","rain_cloud":"🌧","snow_cloud":"🌨","lightning":"🌩","lightning_cloud":"🌩","tornado":"🌪","tornado_cloud":"🌪","fog":"🌫","wind_blowing_face":"🌬","hotdog":"🌭","taco":"🌮","burrito":"🌯","chestnut":"🌰","seedling":"🌱","evergreen_tree":"🌲","deciduous_tree":"🌳","palm_tree":"🌴","cactus":"🌵","hot_pepper":"🌶","tulip":"🌷","cherry_blossom":"🌸","rose":"🌹","hibiscus":"🌺","sunflower":"🌻","blossom":"🌼","corn":"🌽","ear_of_rice":"🌾","herb":"🌿","four_leaf_clover":"🍀","maple_leaf":"🍁","fallen_leaf":"🍂","leaves":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:"😍","sunglasses":"😎","smirk":"😏","neutral_face":"😐","expressionless":"😑","unamused":"😒","sweat":"😓","pensive":"😔","confused":"😕","confounded":"😖","kissing":"😗","kissing_heart":"😘","kissing_smiling_eyes":"😙","kissing_closed_eyes":"😚","stuck_out_tongue":"😛","stuck_out_tongue_winking_eye":"😜","stuck_out_tongue_closed_eyes":"😝","disappointed":"😞","worried":"😟","angry":"😠","rage":"😡","cry":"😢","persevere":"😣","triumph":"😤","disappointed_relieved":"😥","frowning":"😦","anguished":"😧","fearful":"😨","weary":"😩","sleepy":"😪","tired_face":"😫","grimacing":"😬","sob":"😭","open_mouth":"😮","hushed":"😯","cold_sweat":"😰","scream":"😱","astonished":"😲","flushed":"😳","sleeping":"😴","dizzy_face":"😵","no_mouth":"😶","mask":"😷","smile_cat":"😸","joy_cat":"😹","smiley_cat":"😺","heart_eyes_cat":"😻","smirk_cat":"😼","kissing_cat":"😽","pouting_cat":"😾","crying_cat_face":"😿","scream_cat":"🙀","slightly_frowning_face":"🙁","slightly_smiling_face":"🙂","upside_down_face":"🙃","face_with_rolling_eyes":"🙄","no_good":"🙅","ok_woman":"🙆","bow":"🙇","see_no_evil":"🙈","hear_no_evil":"🙉","speak_no_evil":"🙊","raising_hand":"🙋","raised_hands":"🙌","person_frowning":"🙍","person_with_pouting_face":"🙎","pray":"🙏","rocket":"🚀","helicopter":"🚁","steam_locomotive":"🚂","railway_car":"🚃","bullettrain_side":"🚄","bullettrain_front":"🚅","train2":"🚆","metro":"🚇","light_rail":"🚈","station":"🚉","tram":"🚊","train":"🚋","bus":"🚌","oncoming_bus":"🚍","trolleybus":"🚎","busstop":"🚏","minibus":"🚐","ambulance":"🚑","fire_engine":"🚒","police_car":"🚓","oncoming_police_car":"🚔","taxi":"🚕","oncoming_taxi":"🚖","car":"🚗","red_car":"🚗","oncoming_automobile":"🚘","blue_car":"🚙","truck":"🚚","articulated_lorry":"🚛","tractor":"🚜","monorail":"🚝","mountain_railway":"🚞","suspension_railway":"🚟","mountain_cableway":"🚠","aerial_tramway":"🚡","ship":"🚢","rowboat":"🚣","speedboat":"🚤","traffic_light":"🚥","vertical_traffic_light":"🚦","construction":"🚧","rotating_light":"🚨","triangular_flag_on_post":"🚩","door":"🚪","no_entry_sign":"🚫","smoking":"🚬","no_smoking":"🚭","put_litter_in_its_place":"🚮","do_not_litter":"🚯","potable_water":"🚰","non-potable_water":"🚱","bike":"🚲","no_bicycles":"🚳","bicyclist":"🚴","mountain_bicyclist":"🚵","walking":"🚶","no_pedestrians":"🚷","children_crossing":"🚸","mens":"🚹","womens":"🚺","restroom":"🚻","baby_symbol":"🚼","toilet":"🚽","wc":"🚾","shower":"🚿","bath":"🛀","bathtub":"🛁","passport_control":"🛂","customs":"🛃","baggage_claim":"🛄","left_luggage":"🛅","couch_and_lamp":"🛋","sleeping_accommodation":"🛌","shopping_bags":"🛍","bellhop_bell":"🛎","bed":"🛏","place_of_worship":"🛐","hammer_and_wrench":"🛠","shield":"🛡","oil_drum":"🛢","motorway":"🛣","railway_track":"🛤","motor_boat":"🛥","small_airplane":"🛩","airplane_departure":"🛫","airplane_arriving":"🛬","passenger_ship":"🛳","zipper_mouth_face":"🤐","money_mouth_face":"🤑","face_with_thermometer":"🤒","nerd_face":"🤓","thinking_face":"🤔","face_with_head_bandage":"🤕","robot_face":"🤖","hugging_face":"🤗","the_horns":"🤘","sign_of_the_horns":"🤘","crab":"🦀","lion_face":"🦁","scorpion":"🦂","turkey":"🦃","unicorn_face":"🦄","cheese_wedge":"🧀","hash":"#️⃣","keycap_star":"*⃣","zero":"0️⃣","one":"1️⃣","two":"2️⃣","three":"3️⃣","four":"4️⃣","five":"5️⃣","six":"6️⃣","seven":"7️⃣","eight":"8️⃣","nine":"9️⃣","flag-ac":"🇦🇨","flag-ad":"🇦🇩","flag-ae":"🇦🇪","flag-af":"🇦🇫","flag-ag":"🇦🇬","flag-ai":"🇦🇮","flag-al":"🇦🇱","flag-am":"🇦🇲","flag-ao":"🇦🇴","flag-aq":"🇦🇶","flag-ar":"🇦🇷","flag-as":"🇦🇸","flag-at":"🇦🇹","flag-au":"🇦🇺","flag-aw":"🇦🇼","flag-ax":"🇦🇽","flag-az":"🇦🇿","flag-ba":"🇧🇦","flag-bb":"🇧🇧","flag-bd":"🇧🇩","flag-be":"🇧🇪","flag-bf":"🇧🇫","flag-bg":"🇧🇬","flag-bh":"🇧🇭","flag-bi":"🇧🇮","flag-bj":"🇧🇯","flag-bl":"🇧🇱","flag-bm":"🇧🇲","flag-bn":"🇧🇳","flag-bo":"🇧🇴","flag-bq":"🇧🇶","flag-br":"🇧🇷","flag-bs":"🇧🇸","flag-bt":"🇧🇹","flag-bv":"🇧🇻","flag-bw":"🇧🇼","flag-by":"🇧🇾","flag-bz":"🇧🇿","flag-ca":"🇨🇦","flag-cc":"🇨🇨","flag-cd":"🇨🇩","flag-cf":"🇨🇫","flag-cg":"🇨🇬","flag-ch":"🇨🇭","flag-ci":"🇨🇮","flag-ck":"🇨🇰","flag-cl":"🇨🇱","flag-cm":"🇨🇲","flag-cn":"🇨🇳","cn":"🇨🇳","flag-co":"🇨🇴","flag-cp":"🇨🇵","flag-cr":"🇨🇷","flag-cu":"🇨🇺","flag-cv":"🇨🇻","flag-cw":"🇨🇼","flag-cx":"🇨🇽","flag-cy":"🇨🇾","flag-cz":"🇨🇿","flag-de":"🇩🇪","de":"🇩🇪","flag-dg":"🇩🇬","flag-dj":"🇩🇯","flag-dk":"🇩🇰","flag-dm":"🇩🇲","flag-do":"🇩🇴","flag-dz":"🇩🇿","flag-ea":"🇪🇦","flag-ec":"🇪🇨","flag-ee":"🇪🇪","flag-eg":"🇪🇬","flag-eh":"🇪🇭","flag-er":"🇪🇷","flag-es":"🇪🇸","es":"🇪🇸","flag-et":"🇪🇹","flag-eu":"🇪🇺","flag-fi":"🇫🇮","flag-fj":"🇫🇯","flag-fk":"🇫🇰","flag-fm":"🇫🇲","flag-fo":"🇫🇴","flag-fr":"🇫🇷","fr":"🇫🇷","flag-ga":"🇬🇦","flag-gb":"🇬🇧","gb":"🇬🇧","uk":"🇬🇧","flag-gd":"🇬🇩","flag-ge":"🇬🇪","flag-gf":"🇬🇫","flag-gg":"🇬🇬","flag-gh":"🇬🇭","flag-gi":"🇬🇮","flag-gl":"🇬🇱","flag-gm":"🇬🇲","flag-gn":"🇬🇳","flag-gp":"🇬🇵","flag-gq":"🇬🇶","flag-gr":"🇬🇷","flag-gs":"🇬🇸","flag-gt":"🇬🇹","flag-gu":"🇬🇺","flag-gw":"🇬🇼","flag-gy":"🇬🇾","flag-hk":"🇭🇰","flag-hm":"🇭🇲","flag-hn":"🇭🇳","flag-hr":"🇭🇷","flag-ht":"🇭🇹","flag-hu":"🇭🇺","flag-ic":"🇮🇨","flag-id":"🇮🇩","flag-ie":"🇮🇪","flag-il":"🇮🇱","flag-im":"🇮🇲","flag-in":"🇮🇳","flag-io":"🇮🇴","flag-iq":"🇮🇶","flag-ir":"🇮🇷","flag-is":"🇮🇸","flag-it":"🇮🇹","it":"🇮🇹","flag-je":"🇯🇪","flag-jm":"🇯🇲","flag-jo":"🇯🇴","flag-jp":"🇯🇵","jp":"🇯🇵","flag-ke":"🇰🇪","flag-kg":"🇰🇬","flag-kh":"🇰🇭","flag-ki":"🇰🇮","flag-km":"🇰🇲","flag-kn":"🇰🇳","flag-kp":"🇰🇵","flag-kr":"🇰🇷","kr":"🇰🇷","flag-kw":"🇰🇼","flag-ky":"🇰🇾","flag-kz":"🇰🇿","flag-la":"🇱🇦","flag-lb":"🇱🇧","flag-lc":"🇱🇨","flag-li":"🇱🇮","flag-lk":"🇱🇰","flag-lr":"🇱🇷","flag-ls":"🇱🇸","flag-lt":"🇱🇹","flag-lu":"🇱🇺","flag-lv":"🇱🇻","flag-ly":"🇱🇾","flag-ma":"🇲🇦","flag-mc":"🇲🇨","flag-md":"🇲🇩","flag-me":"🇲🇪","flag-mf":"🇲🇫","flag-mg":"🇲🇬","flag-mh":"🇲🇭","flag-mk":"🇲🇰","flag-ml":"🇲🇱","flag-mm":"🇲🇲","flag-mn":"🇲🇳","flag-mo":"🇲🇴","flag-mp":"🇲🇵","flag-mq":"🇲🇶","flag-mr":"🇲🇷","flag-ms":"🇲🇸","flag-mt":"🇲🇹","flag-mu":"🇲🇺","flag-mv":"🇲🇻","flag-mw":"🇲🇼","flag-mx":"🇲🇽","flag-my":"🇲🇾","flag-mz":"🇲🇿","flag-na":"🇳🇦","flag-nc":"🇳🇨","flag-ne":"🇳🇪","flag-nf":"🇳🇫","flag-ng":"🇳🇬","flag-ni":"🇳🇮","flag-nl":"🇳🇱","flag-no":"🇳🇴","flag-np":"🇳🇵","flag-nr":"🇳🇷","flag-nu":"🇳🇺","flag-nz":"🇳🇿","flag-om":"🇴🇲","flag-pa":"🇵🇦","flag-pe":"🇵🇪","flag-pf":"🇵🇫","flag-pg":"🇵🇬","flag-ph":"🇵🇭","flag-pk":"🇵🇰","flag-pl":"🇵🇱","flag-pm":"🇵🇲","flag-pn":"🇵🇳","flag-pr":"🇵🇷","flag-ps":"🇵🇸","flag-pt":"🇵🇹","flag-pw":"🇵🇼","flag-py":"🇵🇾","flag-qa":"🇶🇦","flag-re":"🇷🇪","flag-ro":"🇷🇴","flag-rs":"🇷🇸","flag-ru":"🇷🇺","ru":"🇷🇺","flag-rw":"🇷🇼","flag-sa":"🇸🇦","flag-sb":"🇸🇧","flag-sc":"🇸🇨","flag-sd":"🇸🇩","flag-se":"🇸🇪","flag-sg":"🇸🇬","flag-sh":"🇸🇭","flag-si":"🇸🇮","flag-sj":"🇸🇯","flag-sk":"🇸🇰","flag-sl":"🇸🇱","flag-sm":"🇸🇲","flag-sn":"🇸🇳","flag-so":"🇸🇴","flag-sr":"🇸🇷","flag-ss":"🇸🇸","flag-st":"🇸🇹","flag-sv":"🇸🇻","flag-sx":"🇸🇽","flag-sy":"🇸🇾","flag-sz":"🇸🇿","flag-ta":"🇹🇦","flag-tc":"🇹🇨","flag-td":"🇹🇩","flag-tf":"🇹🇫","flag-tg":"🇹🇬","flag-th":"🇹🇭","flag-tj":"🇹🇯","flag-tk":"🇹🇰","flag-tl":"🇹🇱","flag-tm":"🇹🇲","flag-tn":"🇹🇳","flag-to":"🇹🇴","flag-tr":"🇹🇷","flag-tt":"🇹🇹","flag-tv":"🇹🇻","flag-tw":"🇹🇼","flag-tz":"🇹🇿","flag-ua":"🇺🇦","flag-ug":"🇺🇬","flag-um":"🇺🇲","flag-us":"🇺🇸","us":"🇺🇸","flag-uy":"🇺🇾","flag-uz":"🇺🇿","flag-va":"🇻🇦","flag-vc":"🇻🇨","flag-ve":"🇻🇪","flag-vg":"🇻🇬","flag-vi":"🇻🇮","flag-vn":"🇻🇳","flag-vu":"🇻🇺","flag-wf":"🇼🇫","flag-ws":"🇼🇸","flag-xk":"🇽🇰","flag-ye":"🇾🇪","flag-yt":"🇾🇹","flag-za":"🇿🇦","flag-zm":"🇿🇲","flag-zw":"🇿🇼","man-man-boy":"👨‍👨‍👦","man-man-boy-boy":"👨‍👨‍👦‍👦","man-man-girl":"👨‍👨‍👧","man-man-girl-boy":"👨‍👨‍👧‍👦","man-man-girl-girl":"👨‍👨‍👧‍👧","man-woman-boy-boy":"👨‍👩‍👦‍👦","man-woman-girl":"👨‍👩‍👧","man-woman-girl-boy":"👨‍👩‍👧‍👦","man-woman-girl-girl":"👨‍👩‍👧‍👧","man-heart-man":"👨‍❤️‍👨","man-kiss-man":"👨‍❤️‍💋‍👨","woman-woman-boy":"👩‍👩‍👦","woman-woman-boy-boy":"👩‍👩‍👦‍👦","woman-woman-girl":"👩‍👩‍👧","woman-woman-girl-boy":"👩‍👩‍👧‍👦","woman-woman-girl-girl":"👩‍👩‍👧‍👧","woman-heart-woman":"👩‍❤️‍👩","woman-kiss-woman":"👩‍❤️‍💋‍👩"}
-
-/***/ }),
-/* 765 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*!
- * normalize-path <https://github.com/jonschlinkert/normalize-path>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-var removeTrailingSeparator = __webpack_require__(796);
-
-module.exports = function normalizePath(str, stripTrailing) {
-  if (typeof str !== 'string') {
-    throw new TypeError('expected a string');
-  }
-  str = str.replace(/[\\\/]+/g, '/');
-  if (stripTrailing !== false) {
-    str = removeTrailingSeparator(str);
-  }
-  return str;
-};
-
-
-/***/ }),
-/* 766 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-let path
-
-class LogicalTree {
-  constructor (name, address, opts) {
-    this.name = name
-    this.version = opts.version
-    this.address = address || ''
-    this.optional = !!opts.optional
-    this.dev = !!opts.dev
-    this.bundled = !!opts.bundled
-    this.resolved = opts.resolved
-    this.integrity = opts.integrity
-    this.dependencies = new Map()
-    this.requiredBy = new Set()
-  }
-
-  get isRoot () { return !this.requiredBy.size }
-
-  addDep (dep) {
-    this.dependencies.set(dep.name, dep)
-    dep.requiredBy.add(this)
-    return this
-  }
-
-  delDep (dep) {
-    this.dependencies.delete(dep.name)
-    dep.requiredBy.delete(this)
-    return this
-  }
-
-  getDep (name) {
-    return this.dependencies.get(name)
-  }
-
-  path (prefix) {
-    if (this.isRoot) {
-      // The address of the root is the prefix itself.
-      return prefix || ''
-    } else {
-      if (!path) { path = __webpack_require__(0) }
-      return path.join(
-        prefix || '',
-        'node_modules',
-        this.address.replace(/:/g, '/node_modules/')
-      )
-    }
-  }
-
-  // This finds cycles _from_ a given node: if some deeper dep has
-  // its own cycle, but that cycle does not refer to this node,
-  // it will return false.
-  hasCycle (_seen, _from) {
-    if (!_seen) { _seen = new Set() }
-    if (!_from) { _from = this }
-    for (let dep of this.dependencies.values()) {
-      if (_seen.has(dep)) { continue }
-      _seen.add(dep)
-      if (dep === _from || dep.hasCycle(_seen, _from)) {
-        return true
-      }
-    }
-    return false
-  }
-
-  forEachAsync (fn, opts, _pending) {
-    if (!opts) { opts = _pending || {} }
-    if (!_pending) { _pending = new Map() }
-    const P = opts.Promise || Promise
-    if (_pending.has(this)) {
-      return P.resolve(this.hasCycle() || _pending.get(this))
-    }
-    const pending = P.resolve().then(() => {
-      return fn(this, () => {
-        return promiseMap(
-          this.dependencies.values(),
-          dep => dep.forEachAsync(fn, opts, _pending),
-          opts
-        )
-      })
-    })
-    _pending.set(this, pending)
-    return pending
-  }
-
-  forEach (fn, _seen) {
-    if (!_seen) { _seen = new Set() }
-    if (_seen.has(this)) { return }
-    _seen.add(this)
-    fn(this, () => {
-      for (let dep of this.dependencies.values()) {
-        dep.forEach(fn, _seen)
-      }
-    })
-  }
-}
-
-module.exports = lockTree
-function lockTree (pkg, pkgLock, opts) {
-  const tree = makeNode(pkg.name, null, pkg)
-  const allDeps = new Map()
-  Array.from(
-    new Set(Object.keys(pkg.devDependencies || {})
-    .concat(Object.keys(pkg.optionalDependencies || {}))
-    .concat(Object.keys(pkg.dependencies || {})))
-  ).forEach(name => {
-    let dep = allDeps.get(name)
-    if (!dep) {
-      const depNode = (pkgLock.dependencies || {})[name]
-      dep = makeNode(name, name, depNode)
-    }
-    addChild(dep, tree, allDeps, pkgLock)
-  })
-  return tree
-}
-
-module.exports.node = makeNode
-function makeNode (name, address, opts) {
-  return new LogicalTree(name, address, opts || {})
-}
-
-function addChild (dep, tree, allDeps, pkgLock) {
-  tree.addDep(dep)
-  allDeps.set(dep.address, dep)
-  const addr = dep.address
-  const lockNode = atAddr(pkgLock, addr)
-  Object.keys(lockNode.requires || {}).forEach(name => {
-    const tdepAddr = reqAddr(pkgLock, name, addr)
-    let tdep = allDeps.get(tdepAddr)
-    if (!tdep) {
-      tdep = makeNode(name, tdepAddr, atAddr(pkgLock, tdepAddr))
-      addChild(tdep, dep, allDeps, pkgLock)
-    } else {
-      dep.addDep(tdep)
-    }
-  })
-}
-
-module.exports._reqAddr = reqAddr
-function reqAddr (pkgLock, name, fromAddr) {
-  const lockNode = atAddr(pkgLock, fromAddr)
-  const child = (lockNode.dependencies || {})[name]
-  if (child) {
-    return `${fromAddr}:${name}`
-  } else {
-    const parts = fromAddr.split(':')
-    while (parts.length) {
-      parts.pop()
-      const joined = parts.join(':')
-      const parent = atAddr(pkgLock, joined)
-      if (parent) {
-        const child = (parent.dependencies || {})[name]
-        if (child) {
-          return `${joined}${parts.length ? ':' : ''}${name}`
-        }
-      }
-    }
-    const err = new Error(`${name} not accessible from ${fromAddr}`)
-    err.pkgLock = pkgLock
-    err.target = name
-    err.from = fromAddr
-    throw err
-  }
-}
-
-module.exports._atAddr = atAddr
-function atAddr (pkgLock, addr) {
-  if (!addr.length) { return pkgLock }
-  const parts = addr.split(':')
-  return parts.reduce((acc, next) => {
-    return acc && (acc.dependencies || {})[next]
-  }, pkgLock)
-}
-
-function promiseMap (arr, fn, opts, _index) {
-  _index = _index || 0
-  const P = (opts && opts.Promise) || Promise
-  if (P.map) {
-    return P.map(arr, fn, opts)
-  } else {
-    if (!(arr instanceof Array)) {
-      arr = Array.from(arr)
-    }
-    if (_index >= arr.length) {
-      return P.resolve()
-    } else {
-      return P.resolve(fn(arr[_index], _index, arr))
-      .then(() => promiseMap(arr, fn, opts, _index + 1))
-    }
-  }
-}
-
-
-/***/ }),
-/* 767 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = Number.isNaN || function (x) {
-	return x !== x;
-};
-
-
-/***/ }),
-/* 768 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var crypto = __webpack_require__(11)
-  , qs = __webpack_require__(196)
-  ;
-
-function sha1 (key, body) {
-  return crypto.createHmac('sha1', key).update(body).digest('base64')
-}
-
-function rsa (key, body) {
-  return crypto.createSign("RSA-SHA1").update(body).sign(key, 'base64');
-}
-
-function rfc3986 (str) {
-  return encodeURIComponent(str)
-    .replace(/!/g,'%21')
-    .replace(/\*/g,'%2A')
-    .replace(/\(/g,'%28')
-    .replace(/\)/g,'%29')
-    .replace(/'/g,'%27')
-    ;
-}
-
-// Maps object to bi-dimensional array
-// Converts { foo: 'A', bar: [ 'b', 'B' ]} to
-// [ ['foo', 'A'], ['bar', 'b'], ['bar', 'B'] ]
-function map (obj) {
-  var key, val, arr = []
-  for (key in obj) {
-    val = obj[key]
-    if (Array.isArray(val))
-      for (var i = 0; i < val.length; i++)
-        arr.push([key, val[i]])
-    else if (typeof val === "object")
-      for (var prop in val)
-        arr.push([key + '[' + prop + ']', val[prop]]);
-    else
-      arr.push([key, val])
-  }
-  return arr
-}
-
-// Compare function for sort
-function compare (a, b) {
-  return a > b ? 1 : a < b ? -1 : 0
-}
-
-function generateBase (httpMethod, base_uri, params) {
-  // adapted from https://dev.twitter.com/docs/auth/oauth and 
-  // https://dev.twitter.com/docs/auth/creating-signature
-
-  // Parameter normalization
-  // http://tools.ietf.org/html/rfc5849#section-3.4.1.3.2
-  var normalized = map(params)
-  // 1.  First, the name and value of each parameter are encoded
-  .map(function (p) {
-    return [ rfc3986(p[0]), rfc3986(p[1] || '') ]
-  })
-  // 2.  The parameters are sorted by name, using ascending byte value
-  //     ordering.  If two or more parameters share the same name, they
-  //     are sorted by their value.
-  .sort(function (a, b) {
-    return compare(a[0], b[0]) || compare(a[1], b[1])
-  })
-  // 3.  The name of each parameter is concatenated to its corresponding
-  //     value using an "=" character (ASCII code 61) as a separator, even
-  //     if the value is empty.
-  .map(function (p) { return p.join('=') })
-   // 4.  The sorted name/value pairs are concatenated together into a
-   //     single string by using an "&" character (ASCII code 38) as
-   //     separator.
-  .join('&')
-
-  var base = [
-    rfc3986(httpMethod ? httpMethod.toUpperCase() : 'GET'),
-    rfc3986(base_uri),
-    rfc3986(normalized)
-  ].join('&')
-
-  return base
-}
-
-function hmacsign (httpMethod, base_uri, params, consumer_secret, token_secret) {
-  var base = generateBase(httpMethod, base_uri, params)
-  var key = [
-    consumer_secret || '',
-    token_secret || ''
-  ].map(rfc3986).join('&')
-
-  return sha1(key, base)
-}
-
-function rsasign (httpMethod, base_uri, params, private_key, token_secret) {
-  var base = generateBase(httpMethod, base_uri, params)
-  var key = private_key || ''
-
-  return rsa(key, base)
-}
-
-function plaintext (consumer_secret, token_secret) {
-  var key = [
-    consumer_secret || '',
-    token_secret || ''
-  ].map(rfc3986).join('&')
-
-  return key
-}
-
-function sign (signMethod, httpMethod, base_uri, params, consumer_secret, token_secret) {
-  var method
-  var skipArgs = 1
-
-  switch (signMethod) {
-    case 'RSA-SHA1':
-      method = rsasign
-      break
-    case 'HMAC-SHA1':
-      method = hmacsign
-      break
-    case 'PLAINTEXT':
-      method = plaintext
-      skipArgs = 4
-      break
-    default:
-     throw new Error("Signature method not supported: " + signMethod)
-  }
-
-  return method.apply(null, [].slice.call(arguments, skipArgs))
-}
-
-exports.hmacsign = hmacsign
-exports.rsasign = rsasign
-exports.plaintext = plaintext
-exports.sign = sign
-exports.rfc3986 = rfc3986
-exports.generateBase = generateBase
-
-
-
-/***/ }),
-/* 769 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * object.omit <https://github.com/jonschlinkert/object.omit>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var isObject = __webpack_require__(735);
-var forOwn = __webpack_require__(770);
-
-module.exports = function omit(obj, keys) {
-  if (!isObject(obj)) return {};
-
-  keys = [].concat.apply([], [].slice.call(arguments, 1));
-  var last = keys[keys.length - 1];
-  var res = {}, fn;
-
-  if (typeof last === 'function') {
-    fn = keys.pop();
-  }
-
-  var isFunction = typeof fn === 'function';
-  if (!keys.length && !isFunction) {
-    return obj;
-  }
-
-  forOwn(obj, function(value, key) {
-    if (keys.indexOf(key) === -1) {
-
-      if (!isFunction) {
-        res[key] = value;
-      } else if (fn(value, key, obj)) {
-        res[key] = value;
-      }
-    }
-  });
-  return res;
-};
-
-
-/***/ }),
-/* 770 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * for-own <https://github.com/jonschlinkert/for-own>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-var forIn = __webpack_require__(647);
-var hasOwn = Object.prototype.hasOwnProperty;
-
-module.exports = function forOwn(obj, fn, thisArg) {
-  forIn(obj, function(val, key) {
-    if (hasOwn.call(obj, key)) {
-      return fn.call(thisArg, obj[key], key, obj);
-    }
-  });
-};
-
-
-/***/ }),
-/* 771 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const mimicFn = __webpack_require__(760);
-
-module.exports = (fn, opts) => {
-	// TODO: Remove this in v3
-	if (opts === true) {
-		throw new TypeError('The second argument is now an options object');
-	}
-
-	if (typeof fn !== 'function') {
-		throw new TypeError('Expected a function');
-	}
-
-	opts = opts || {};
-
-	let ret;
-	let called = false;
-	const fnName = fn.displayName || fn.name || '<anonymous>';
-
-	const onetime = function () {
-		if (called) {
-			if (opts.throw === true) {
-				throw new Error(`Function \`${fnName}\` can only be called once`);
-			}
-
-			return ret;
-		}
-
-		called = true;
-		ret = fn.apply(this, arguments);
-		fn = null;
-
-		return ret;
-	};
-
-	mimicFn(onetime, fn);
-
-	return onetime;
-};
-
-
-/***/ }),
-/* 772 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var isWindows = process.platform === 'win32';
-var trailingSlashRe = isWindows ? /[^:]\\$/ : /.\/$/;
-
-// https://github.com/nodejs/node/blob/3e7a14381497a3b73dda68d05b5130563cdab420/lib/os.js#L25-L43
-module.exports = function () {
-	var path;
-
-	if (isWindows) {
-		path = process.env.TEMP ||
-			process.env.TMP ||
-			(process.env.SystemRoot || process.env.windir) + '\\temp';
-	} else {
-		path = process.env.TMPDIR ||
-			process.env.TMP ||
-			process.env.TEMP ||
-			'/tmp';
-	}
-
-	if (trailingSlashRe.test(path)) {
-		path = path.slice(0, -1);
-	}
-
-	return path;
-};
-
-
-/***/ }),
-/* 773 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * parse-glob <https://github.com/jonschlinkert/parse-glob>
- *
- * Copyright (c) 2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-var isGlob = __webpack_require__(178);
-var findBase = __webpack_require__(652);
-var extglob = __webpack_require__(177);
-var dotfile = __webpack_require__(733);
-
-/**
- * Expose `cache`
- */
-
-var cache = module.exports.cache = {};
-
-/**
- * Parse a glob pattern into tokens.
- *
- * When no paths or '**' are in the glob, we use a
- * different strategy for parsing the filename, since
- * file names can contain braces and other difficult
- * patterns. such as:
- *
- *  - `*.{a,b}`
- *  - `(**|*.js)`
- */
-
-module.exports = function parseGlob(glob) {
-  if (cache.hasOwnProperty(glob)) {
-    return cache[glob];
-  }
-
-  var tok = {};
-  tok.orig = glob;
-  tok.is = {};
-
-  // unescape dots and slashes in braces/brackets
-  glob = escape(glob);
-
-  var parsed = findBase(glob);
-  tok.is.glob = parsed.isGlob;
-
-  tok.glob = parsed.glob;
-  tok.base = parsed.base;
-  var segs = /([^\/]*)$/.exec(glob);
-
-  tok.path = {};
-  tok.path.dirname = '';
-  tok.path.basename = segs[1] || '';
-  tok.path.dirname = glob.split(tok.path.basename).join('') || '';
-  var basename = (tok.path.basename || '').split('.') || '';
-  tok.path.filename = basename[0] || '';
-  tok.path.extname = basename.slice(1).join('.') || '';
-  tok.path.ext = '';
-
-  if (isGlob(tok.path.dirname) && !tok.path.basename) {
-    if (!/\/$/.test(tok.glob)) {
-      tok.path.basename = tok.glob;
-    }
-    tok.path.dirname = tok.base;
-  }
-
-  if (glob.indexOf('/') === -1 && !tok.is.globstar) {
-    tok.path.dirname = '';
-    tok.path.basename = tok.orig;
-  }
-
-  var dot = tok.path.basename.indexOf('.');
-  if (dot !== -1) {
-    tok.path.filename = tok.path.basename.slice(0, dot);
-    tok.path.extname = tok.path.basename.slice(dot);
-  }
-
-  if (tok.path.extname.charAt(0) === '.') {
-    var exts = tok.path.extname.split('.');
-    tok.path.ext = exts[exts.length - 1];
-  }
-
-  // unescape dots and slashes in braces/brackets
-  tok.glob = unescape(tok.glob);
-  tok.path.dirname = unescape(tok.path.dirname);
-  tok.path.basename = unescape(tok.path.basename);
-  tok.path.filename = unescape(tok.path.filename);
-  tok.path.extname = unescape(tok.path.extname);
-
-  // Booleans
-  var is = (glob && tok.is.glob);
-  tok.is.negated  = glob && glob.charAt(0) === '!';
-  tok.is.extglob  = glob && extglob(glob);
-  tok.is.braces   = has(is, glob, '{');
-  tok.is.brackets = has(is, glob, '[:');
-  tok.is.globstar = has(is, glob, '**');
-  tok.is.dotfile  = dotfile(tok.path.basename) || dotfile(tok.path.filename);
-  tok.is.dotdir   = dotdir(tok.path.dirname);
-  return (cache[glob] = tok);
-}
-
-/**
- * Returns true if the glob matches dot-directories.
- *
- * @param  {Object} `tok` The tokens object
- * @param  {Object} `path` The path object
- * @return {Object}
- */
-
-function dotdir(base) {
-  if (base.indexOf('/.') !== -1) {
-    return true;
-  }
-  if (base.charAt(0) === '.' && base.charAt(1) !== '/') {
-    return true;
-  }
-  return false;
-}
-
-/**
- * Returns true if the pattern has the given `ch`aracter(s)
- *
- * @param  {Object} `glob` The glob pattern.
- * @param  {Object} `ch` The character to test for
- * @return {Object}
- */
-
-function has(is, glob, ch) {
-  return is && glob.indexOf(ch) !== -1;
-}
-
-/**
- * Escape/unescape utils
- */
-
-function escape(str) {
-  var re = /\{([^{}]*?)}|\(([^()]*?)\)|\[([^\[\]]*?)\]/g;
-  return str.replace(re, function (outter, braces, parens, brackets) {
-    var inner = braces || parens || brackets;
-    if (!inner) { return outter; }
-    return outter.split(inner).join(esc(inner));
-  });
-}
-
-function esc(str) {
-  str = str.split('/').join('__SLASH__');
-  str = str.split('.').join('__DOT__');
-  return str;
-}
-
-function unescape(str) {
-  str = str.split('__SLASH__').join('/');
-  str = str.split('__DOT__').join('.');
-  return str;
-}
-
-
-/***/ }),
-/* 774 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var isWindows = process.platform === 'win32';
-
-// Regex to split a windows path into three parts: [*, device, slash,
-// tail] windows-only
-var splitDeviceRe =
-    /^([a-zA-Z]:|[\\\/]{2}[^\\\/]+[\\\/]+[^\\\/]+)?([\\\/])?([\s\S]*?)$/;
-
-// Regex to split the tail part of the above into [*, dir, basename, ext]
-var splitTailRe =
-    /^([\s\S]*?)((?:\.{1,2}|[^\\\/]+?|)(\.[^.\/\\]*|))(?:[\\\/]*)$/;
-
-var win32 = {};
-
-// Function to split a filename into [root, dir, basename, ext]
-function win32SplitPath(filename) {
-  // Separate device+slash from tail
-  var result = splitDeviceRe.exec(filename),
-      device = (result[1] || '') + (result[2] || ''),
-      tail = result[3] || '';
-  // Split the tail into dir, basename and extension
-  var result2 = splitTailRe.exec(tail),
-      dir = result2[1],
-      basename = result2[2],
-      ext = result2[3];
-  return [device, dir, basename, ext];
-}
-
-win32.parse = function(pathString) {
-  if (typeof pathString !== 'string') {
-    throw new TypeError(
-        "Parameter 'pathString' must be a string, not " + typeof pathString
-    );
-  }
-  var allParts = win32SplitPath(pathString);
-  if (!allParts || allParts.length !== 4) {
-    throw new TypeError("Invalid path '" + pathString + "'");
-  }
-  return {
-    root: allParts[0],
-    dir: allParts[0] + allParts[1].slice(0, -1),
-    base: allParts[2],
-    ext: allParts[3],
-    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
-  };
-};
-
-
-
-// Split a filename into [root, dir, basename, ext], unix version
-// 'root' is just a slash, or nothing.
-var splitPathRe =
-    /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
-var posix = {};
-
-
-function posixSplitPath(filename) {
-  return splitPathRe.exec(filename).slice(1);
-}
-
-
-posix.parse = function(pathString) {
-  if (typeof pathString !== 'string') {
-    throw new TypeError(
-        "Parameter 'pathString' must be a string, not " + typeof pathString
-    );
-  }
-  var allParts = posixSplitPath(pathString);
-  if (!allParts || allParts.length !== 4) {
-    throw new TypeError("Invalid path '" + pathString + "'");
-  }
-  allParts[1] = allParts[1] || '';
-  allParts[2] = allParts[2] || '';
-  allParts[3] = allParts[3] || '';
-
-  return {
-    root: allParts[0],
-    dir: allParts[0] + allParts[1].slice(0, -1),
-    base: allParts[2],
-    ext: allParts[3],
-    name: allParts[2].slice(0, allParts[2].length - allParts[3].length)
-  };
-};
-
-
-if (isWindows)
-  module.exports = win32.parse;
-else /* posix */
-  module.exports = posix.parse;
-
-module.exports.posix = posix.parse;
-module.exports.win32 = win32.parse;
-
-
-/***/ }),
-/* 775 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var duplexify = __webpack_require__(386)
-var through = __webpack_require__(461)
-var bufferFrom = __webpack_require__(595)
-
-var noop = function() {}
-
-var isObject = function(data) {
-  return !Buffer.isBuffer(data) && typeof data !== 'string'
-}
-
-var peek = function(opts, onpeek) {
-  if (typeof opts === 'number') opts = {maxBuffer:opts}
-  if (typeof opts === 'function') return peek(null, opts)
-  if (!opts) opts = {}
-
-  var maxBuffer = typeof opts.maxBuffer === 'number' ? opts.maxBuffer : 65535
-  var strict = opts.strict
-  var newline = opts.newline !== false
-
-  var buffer = []
-  var bufferSize = 0
-  var dup = duplexify.obj()
-
-  var peeker = through.obj({highWaterMark:1}, function(data, enc, cb) {
-    if (isObject(data)) return ready(data, null, cb)
-    if (!Buffer.isBuffer(data)) data = bufferFrom(data)
-
-    if (newline) {
-      var nl = Array.prototype.indexOf.call(data, 10)
-      if (nl > 0 && data[nl-1] === 13) nl--
-
-      if (nl > -1) {
-        buffer.push(data.slice(0, nl))
-        return ready(Buffer.concat(buffer), data.slice(nl), cb)
-      }
-    }
-
-    buffer.push(data)
-    bufferSize += data.length
-
-    if (bufferSize < maxBuffer) return cb()
-    if (strict) return cb(new Error('No newline found'))
-    ready(Buffer.concat(buffer), null, cb)
-  })
-
-  var onpreend = function() {
-    if (strict) return dup.destroy(new Error('No newline found'))
-    dup.cork()
-    ready(Buffer.concat(buffer), null, function(err) {
-      if (err) return dup.destroy(err)
-      dup.uncork()
-    })
-  }
-
-  var ready = function(data, overflow, cb) {
-    dup.removeListener('preend', onpreend)
-    onpeek(data, function(err, parser) {
-      if (err) return cb(err)
-
-      dup.setWritable(parser)
-      dup.setReadable(parser)
-
-      if (data) parser.write(data)
-      if (overflow) parser.write(overflow)
-
-      overflow = buffer = peeker = null // free the data
-      cb()
-    })
-  }
-
-  dup.on('preend', onpreend)
-  dup.setWritable(peeker)
-
-  return dup
-}
-
-module.exports = peek
-
-
-/***/ }),
-/* 776 */
-/***/ (function(module, exports) {
-
-// Generated by CoffeeScript 1.12.2
-(function() {
-  var getNanoSeconds, hrtime, loadTime, moduleLoadTime, nodeLoadTime, upTime;
-
-  if ((typeof performance !== "undefined" && performance !== null) && performance.now) {
-    module.exports = function() {
-      return performance.now();
-    };
-  } else if ((typeof process !== "undefined" && process !== null) && process.hrtime) {
-    module.exports = function() {
-      return (getNanoSeconds() - nodeLoadTime) / 1e6;
-    };
-    hrtime = process.hrtime;
-    getNanoSeconds = function() {
-      var hr;
-      hr = hrtime();
-      return hr[0] * 1e9 + hr[1];
-    };
-    moduleLoadTime = getNanoSeconds();
-    upTime = process.uptime() * 1e9;
-    nodeLoadTime = moduleLoadTime - upTime;
-  } else if (Date.now) {
-    module.exports = function() {
-      return Date.now() - loadTime;
-    };
-    loadTime = Date.now();
-  } else {
-    module.exports = function() {
-      return new Date().getTime() - loadTime;
-    };
-    loadTime = new Date().getTime();
-  }
-
-}).call(this);
-
-//# sourceMappingURL=performance-now.js.map
-
-
-/***/ }),
-/* 777 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = (url, opts) => {
-	if (typeof url !== 'string') {
-		throw new TypeError(`Expected \`url\` to be of type \`string\`, got \`${typeof url}\``);
-	}
-
-	url = url.trim();
-	opts = Object.assign({https: false}, opts);
-
-	if (/^\.*\/|^(?!localhost)\w+:/.test(url)) {
-		return url;
-	}
-
-	return url.replace(/^(?!(?:\w+:)?\/\/)/, opts.https ? 'https://' : 'http://');
-};
-
-
-/***/ }),
-/* 778 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * preserve <https://github.com/jonschlinkert/preserve>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT license.
- */
-
-
-
-/**
- * Replace tokens in `str` with a temporary, heuristic placeholder.
- *
- * ```js
- * tokens.before('{a\\,b}');
- * //=> '{__ID1__}'
- * ```
- *
- * @param  {String} `str`
- * @return {String} String with placeholders.
- * @api public
- */
-
-exports.before = function before(str, re) {
-  return str.replace(re, function (match) {
-    var id = randomize();
-    cache[id] = match;
-    return '__ID' + id + '__';
-  });
-};
-
-/**
- * Replace placeholders in `str` with original tokens.
- *
- * ```js
- * tokens.after('{__ID1__}');
- * //=> '{a\\,b}'
- * ```
- *
- * @param  {String} `str` String with placeholders
- * @return {String} `str` String with original tokens.
- * @api public
- */
-
-exports.after = function after(str) {
-  return str.replace(/__ID(.{5})__/g, function (_, id) {
-    return cache[id];
-  });
-};
-
-function randomize() {
-  return Math.random().toString().slice(2, 7);
-}
-
-var cache = {};
-
-/***/ }),
-/* 779 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function makeSync(fs, name) {
-    const fn = fs[`${name}Sync`];
-
-    return function () {
-        const callback = arguments[arguments.length - 1];
-        const args = Array.prototype.slice.call(arguments, 0, -1);
-        let ret;
-
-        try {
-            ret = fn.apply(fs, args);
-        } catch (err) {
-            return callback(err);
-        }
-
-        callback(null, ret);
-    };
-}
-
-function syncFs(fs) {
-    const fns = ['mkdir', 'realpath', 'stat', 'rmdir', 'utimes'];
-    const obj = {};
-
-    // Create the sync versions of the methods that we need
-    fns.forEach((name) => {
-        obj[name] = makeSync(fs, name);
-    });
-
-    // Copy the rest of the functions
-    for (const key in fs) {
-        if (!obj[key]) {
-            obj[key] = fs[key];
-        }
-    }
-
-    return obj;
-}
-
-module.exports = syncFs;
-
-
-/***/ }),
-/* 780 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, '__esModule', { value: true });
-
-/**
- * Key a method on your object with this symbol and you can get special
- * formatting for that value! See ShellStringText, ShellStringUnquoted, or
- * shellStringSemicolon for examples.
- * @ignore
- */
-const formatSymbol = Symbol('format');
-/**
- * This symbol is for implementing advanced behaviors like the need for extra
- * carets in Windows shell strings that use pipes. If present, it's called in
- * an earlier phase than formatSymbol, and is passed a mutable context that can
- * be read during the format phase to influence formatting.
- * @ignore
- */
-const preformatSymbol = Symbol('preformat');
-
-// When minimum Node version becomes 6, replace calls to sticky with /.../y and
-// inline execFrom.
-let stickySupported = true;
-try {
-  new RegExp('', 'y');
-} catch (e) {
-  stickySupported = false;
-}
-const sticky = stickySupported ? source => new RegExp(source, 'y') : source => new RegExp(`^(?:${source})`);
-const execFrom = stickySupported ? (re, haystack, index) => (re.lastIndex = index, re.exec(haystack)) : (re, haystack, index) => re.exec(haystack.substr(index));
-
-function quoteForCmd(text, forceQuote) {
-  let caretDepth = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
-  // See the below blog post for an explanation of this function and
-  // quoteForWin32:
-  // https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/
-  if (!text.length) {
-    return '""';
-  }
-  if (/[\n\r]/.test(text)) {
-    throw new Error("Line breaks can't be quoted on Windows");
-  }
-  const caretEscape = /["%]/.test(text);
-  text = quoteForWin32(text, forceQuote || !caretEscape && /[&()<>^|]/.test(text));
-  if (caretEscape) {
-    // See Win32Context for explanation of what caretDepth is for.
-    do {
-      text = text.replace(/[\t "%&()<>^|]/g, '^$&');
-    } while (caretDepth--);
-  }
-  return text;
-}
-const quoteForWin32 = (text, forceQuote) => forceQuote || /[\t "]/.test(text) ? `"${text.replace(/\\+(?=$|")/g, '$&$&').replace(/"/g, '\\"')}"` : text;
-const cmdMetaChars = /[\t\n\r "%&()<>^|]/;
-class Win32Context {
-  constructor() {
-    this.currentScope = newScope(null);
-    this.scopesByObject = new Map();
-  }
-  read(text) {
-    // When cmd.exe pipes to or from a batch file, it spawns a second copy of
-    // itself to run the inner command. This necessitates doubling up on carets
-    // so that escaped characters survive both cmd.exe invocations. See:
-    // https://stackoverflow.com/questions/8192318/why-does-delayed-expansion-fail-when-inside-a-piped-block-of-code#8194279
-    // https://ss64.com/nt/syntax-redirection.html
-    //
-    // Parentheses can create an additional subshell, requiring additional
-    // escaping... it's a mess.
-    //
-    // So here's what we do about it: we read all unquoted text in a shell
-    // string and put it through this tiny parser that looks for pipes,
-    // sequence operators (&, &&, ||), and parentheses. This can't be part of
-    // the main Puka parsing, because it can be affected by `unquoted(...)`
-    // values provided at evaluation time.
-    //
-    // Then, after associating each thing that needs to be quoted with a scope
-    // (via `mark()`), we can determine the depth of caret escaping required
-    // in each scope and pass it (via `Formatter::quote()`) to `quoteForCmd()`.
-    //
-    // See also `ShellStringText`, which holds the logic for the previous
-    // paragraph.
-    const length = text.length;
-    for (let pos = 0, match; pos < length;) {
-      if (match = execFrom(reUnimportant, text, pos)) {
-        pos += match[0].length;
-      }
-      if (pos >= length) break;
-      if (match = execFrom(reSeqOp, text, pos)) {
-        this.seq();
-        pos += match[0].length;
-      } else {
-        const char = text.charCodeAt(pos);
-        if (char === CARET) {
-          pos += 2;
-        } else if (char === QUOTE) {
-          // If you were foolish enough to leave a dangling quotation mark in
-          // an unquoted span... you're likely to have bigger problems than
-          // incorrect escaping. So we just do the simplest thing of looking for
-          // the end quote only in this piece of text.
-          pos += execFrom(reNotQuote, text, pos + 1)[0].length + 2;
-        } else {
-          if (char === OPEN_PAREN) {
-            this.enterScope();
-          } else if (char === CLOSE_PAREN) {
-            this.exitScope();
-          } else {
-            // (char === '|')
-            this.currentScope.depthDelta = 1;
-          }
-          pos++;
-        }
-      }
-    }
-  }
-  enterScope() {
-    this.currentScope = newScope(this.currentScope);
-  }
-  exitScope() {
-    this.currentScope = this.currentScope.parent || (this.currentScope.parent = newScope(null));
-  }
-  seq() {
-    // | binds tighter than sequence operators, so the latter create new sibling
-    // scopes for future |s to mutate.
-    this.currentScope = newScope(this.currentScope.parent);
-  }
-  mark(obj) {
-    this.scopesByObject.set(obj, this.currentScope);
-  }
-  at(obj) {
-    return { depth: getDepth(this.scopesByObject.get(obj)) };
-  }
-}
-const getDepth = scope => scope === null ? 0 : scope.depth !== -1 ? scope.depth : scope.depth = getDepth(scope.parent) + scope.depthDelta;
-const newScope = parent => ({ parent, depthDelta: 0, depth: -1 });
-const CARET = '^'.charCodeAt();
-const QUOTE = '"'.charCodeAt();
-const OPEN_PAREN = '('.charCodeAt();
-const CLOSE_PAREN = ')'.charCodeAt();
-const reNotQuote = sticky('[^"]*');
-const reSeqOp = sticky('&&?|\\|\\|');
-const reUnimportant = sticky('(?:>&|[^"$&()^|])+');
-
-const quoteForSh = (text, forceQuote) => text.length ? forceQuote || shMetaChars.test(text) ? `'${text.replace(/'/g, "'\\''")}'`.replace(/^(?:'')+(?!$)/, '').replace(/\\'''/g, "\\'") : text : "''";
-const shMetaChars = /[\t\n\r "#$&'()*;<>?\\`|~]/;
-
-/**
- * To get a Formatter, call `Formatter.for`.
- *
- * To create a new Formatter, pass an object to `Formatter.declare`.
- *
- * To set the global default Formatter, assign to `Formatter.default`.
- *
- * @class
- * @property {Formatter} default - The Formatter to be used when no platform
- * is provided—for example, when creating strings with `sh`.
- * @ignore
- */
-function Formatter() {}
-Object.assign(Formatter, /** @lends Formatter */{
-  /**
-   * Gets a Formatter that has been declared for the provided platform, or
-   * the base `'sh'` formatter if there is no Formatter specific to this
-   * platform, or the Formatter for the current platform if no specific platform
-   * is provided.
-   */
-  for(platform) {
-    return platform == null ? Formatter.default || (Formatter.default = Formatter.for(process.platform)) : Formatter._registry.get(platform) || Formatter._registry.get('sh');
-  },
-  /**
-   * Creates a new Formatter or mutates the properties on an existing
-   * Formatter. The `platform` key on the provided properties object determines
-   * when the Formatter is retrieved.
-   */
-  declare(props) {
-    const platform = props && props.platform || 'sh';
-    const existingFormatter = Formatter._registry.get(platform);
-    const formatter = Object.assign(existingFormatter || new Formatter(), props);
-    formatter.emptyString === void 0 && (formatter.emptyString = formatter.quote('', true));
-    existingFormatter || Formatter._registry.set(formatter.platform, formatter);
-  },
-  _registry: new Map(),
-  prototype: {
-    platform: 'sh',
-    quote: quoteForSh,
-    metaChars: shMetaChars,
-    hasExtraMetaChars: false,
-    statementSeparator: ';',
-    createContext() {
-      return defaultContext;
-    }
-  }
-});
-const defaultContext = {
-  at() {}
-};
-Formatter.declare();
-Formatter.declare({
-  platform: 'win32',
-  quote(text, forceQuote, opts) {
-    return quoteForCmd(text, forceQuote, opts && opts.depth || 0);
-  },
-  metaChars: cmdMetaChars,
-  hasExtraMetaChars: true,
-  statementSeparator: '&',
-  createContext(root) {
-    const context = new this.Context();
-    root[preformatSymbol](context);
-    return context;
-  },
-  Context: Win32Context
-});
-
-const isObject = any => any === Object(any);
-function memoize(f) {
-  const cache = new WeakMap();
-  return arg => {
-    let result = cache.get(arg);
-    if (result === void 0) {
-      result = f(arg);
-      cache.set(arg, result);
-    }
-    return result;
-  };
-}
-
-/**
- * Represents a contiguous span of text that may or must be quoted. The contents
- * may already contain quoted segments, which will always be quoted. If unquoted
- * segments also require quoting, the entire span will be quoted together.
- * @ignore
- */
-class ShellStringText {
-  constructor(contents, untested) {
-    this.contents = contents;
-    this.untested = untested;
-  }
-  [formatSymbol](formatter, context) {
-    const unformattedContents = this.contents;
-    const length = unformattedContents.length;
-    const contents = new Array(length);
-    for (let i = 0; i < length; i++) {
-      const c = unformattedContents[i];
-      contents[i] = isObject(c) && formatSymbol in c ? c[formatSymbol](formatter) : c;
-    }
-    for (let unquoted = true, i = 0; i < length; i++) {
-      const content = contents[i];
-      if (content === null) {
-        unquoted = !unquoted;
-      } else {
-        if (unquoted && (formatter.hasExtraMetaChars || this.untested && this.untested.has(i)) && formatter.metaChars.test(content)) {
-          return formatter.quote(contents.join(''), false, context.at(this));
-        }
-      }
-    }
-    const parts = [];
-    for (let quoted = null, i = 0; i < length; i++) {
-      const content = contents[i];
-      if (content === null) {
-        quoted = quoted ? (parts.push(formatter.quote(quoted.join(''), true, context.at(this))), null) : [];
-      } else {
-        (quoted || parts).push(content);
-      }
-    }
-    const result = parts.join('');
-    return result.length ? result : formatter.emptyString;
-  }
-  [preformatSymbol](context) {
-    context.mark(this);
-  }
-}
-
-/**
- * Represents a contiguous span of text that will not be quoted.
- * @ignore
- */
-class ShellStringUnquoted {
-  constructor(value) {
-    this.value = value;
-  }
-  [formatSymbol]() {
-    return this.value;
-  }
-  [preformatSymbol](context) {
-    context.read(this.value);
-  }
-}
-
-/**
- * Represents a semicolon... or an ampersand, on Windows.
- * @ignore
- */
-const shellStringSemicolon = {
-  [formatSymbol](formatter) {
-    return formatter.statementSeparator;
-  },
-  [preformatSymbol](context) {
-    context.seq();
-  }
-};
-
-const PLACEHOLDER = {};
-const parse = memoize(templateSpans => {
-  // These are the token types our DSL can recognize. Their values won't escape
-  // this function.
-  const TOKEN_TEXT = 0;
-  const TOKEN_QUOTE = 1;
-  const TOKEN_SEMI = 2;
-  const TOKEN_UNQUOTED = 3;
-  const TOKEN_SPACE = 4;
-  const TOKEN_REDIRECT = 5;
-  const result = [];
-  let placeholderCount = 0;
-  let prefix = null;
-  let onlyPrefixOnce = false;
-  let contents = [];
-  let quote = 0;
-  const lastSpan = templateSpans.length - 1;
-  for (let spanIndex = 0; spanIndex <= lastSpan; spanIndex++) {
-    const templateSpan = templateSpans[spanIndex];
-    const posEnd = templateSpan.length;
-    let tokenStart = 0;
-    if (spanIndex) {
-      placeholderCount++;
-      contents.push(PLACEHOLDER);
-    }
-    // For each span, we first do a recognizing pass in which we use regular
-    // expressions to identify the positions of tokens in the text, and then
-    // a second pass that actually splits the text into the minimum number of
-    // substrings necessary.
-    const recognized = []; // [type1, index1, type2, index2...]
-    let firstWordBreak = -1;
-    let lastWordBreak = -1;
-    {
-      let pos = 0,
-          match;
-      while (pos < posEnd) {
-        if (quote) {
-          if (match = execFrom(quote === CHAR_SQUO ? reQuotation1 : reQuotation2, templateSpan, pos)) {
-            recognized.push(TOKEN_TEXT, pos);
-            pos += match[0].length;
-          }
-          if (pos < posEnd) {
-            recognized.push(TOKEN_QUOTE, pos++);
-            quote = 0;
-          }
-        } else {
-          if (match = execFrom(reText, templateSpan, pos)) {
-            const setBreaks = match[1] != null;
-            setBreaks && firstWordBreak < 0 && (firstWordBreak = pos);
-            recognized.push(setBreaks ? TOKEN_UNQUOTED : TOKEN_TEXT, pos);
-            pos += match[0].length;
-            setBreaks && (lastWordBreak = pos);
-          }
-          if (match = execFrom(reRedirectOrSpace, templateSpan, pos)) {
-            firstWordBreak < 0 && (firstWordBreak = pos);
-            lastWordBreak = pos;
-            recognized.push(match[1] ? TOKEN_REDIRECT : TOKEN_SPACE, pos);
-            pos += match[0].length;
-          }
-          const char = templateSpan.charCodeAt(pos);
-          if (char === CHAR_SEMI) {
-            firstWordBreak < 0 && (firstWordBreak = pos);
-            recognized.push(TOKEN_SEMI, pos++);
-            lastWordBreak = pos;
-          } else if (char === CHAR_SQUO || char === CHAR_DQUO) {
-            recognized.push(TOKEN_QUOTE, pos++);
-            quote = char;
-          }
-        }
-      }
-    }
-    // Word breaks are only important if they separate words with placeholders,
-    // so we can ignore the first/last break if this is the first/last span.
-    spanIndex === 0 && (firstWordBreak = -1);
-    spanIndex === lastSpan && (lastWordBreak = posEnd);
-    // Here begins the second pass mentioned above. This loop runs one more
-    // iteration than there are tokens in recognized, because it handles tokens
-    // on a one-iteration delay; hence the i <= iEnd instead of i < iEnd.
-    const iEnd = recognized.length;
-    for (let i = 0, type = -1; i <= iEnd; i += 2) {
-      let typeNext = -1,
-          pos;
-      if (i === iEnd) {
-        pos = posEnd;
-      } else {
-        typeNext = recognized[i];
-        pos = recognized[i + 1];
-        // If the next token is space or redirect, but there's another word
-        // break in this span, then we can handle that token the same way we
-        // would handle unquoted text because it isn't being attached to a
-        // placeholder.
-        typeNext >= TOKEN_SPACE && pos !== lastWordBreak && (typeNext = TOKEN_UNQUOTED);
-      }
-      const breakHere = pos === firstWordBreak || pos === lastWordBreak;
-      if (pos && (breakHere || typeNext !== type)) {
-        let value = type === TOKEN_QUOTE ? null : type === TOKEN_SEMI ? shellStringSemicolon : templateSpan.substring(tokenStart, pos);
-        if (type >= TOKEN_SEMI) {
-          // This branch handles semicolons, unquoted text, spaces, and
-          // redirects. shellStringSemicolon is already a formatSymbol object;
-          // the rest need to be wrapped.
-          type === TOKEN_SEMI || (value = new ShellStringUnquoted(value));
-          // We don't need to check placeholderCount here like we do below;
-          // that's only relevant during the first word break of the span, and
-          // because this iteration of the loop is processing the token that
-          // was checked for breaks in the previous iteration, it will have
-          // already been handled. For the same reason, prefix is guaranteed to
-          // be null.
-          if (contents.length) {
-            result.push(new ShellStringText(contents, null));
-            contents = [];
-          }
-          // Only spaces and redirects become prefixes, but not if they've been
-          // rewritten to unquoted above.
-          if (type >= TOKEN_SPACE) {
-            prefix = value;
-            onlyPrefixOnce = type === TOKEN_SPACE;
-          } else {
-            result.push(value);
-          }
-        } else {
-          contents.push(value);
-        }
-        tokenStart = pos;
-      }
-      if (breakHere) {
-        if (placeholderCount) {
-          result.push({ contents, placeholderCount, prefix, onlyPrefixOnce });
-        } else {
-          // There's no prefix to handle in this branch; a prefix prior to this
-          // span would mean placeholderCount > 0, and a prefix in this span
-          // can't be created because spaces and redirects get rewritten to
-          // unquoted before the last word break.
-          contents.length && result.push(new ShellStringText(contents, null));
-        }
-        placeholderCount = 0;prefix = null;onlyPrefixOnce = false;
-        contents = [];
-      }
-      type = typeNext;
-    }
-  }
-  if (quote) {
-    throw new SyntaxError(`String is missing a ${String.fromCharCode(quote)} character`);
-  }
-  return result;
-});
-const CHAR_SEMI = ';'.charCodeAt();
-const CHAR_SQUO = "'".charCodeAt();
-const CHAR_DQUO = '"'.charCodeAt();
-const reQuotation1 = sticky("[^']+");
-const reQuotation2 = sticky('[^"]+');
-const reText = sticky('[^\\s"#$&\'();<>\\\\`|]+|([#$&()\\\\`|]+)');
-const reRedirectOrSpace = sticky('((?:\\s+\\d+|\\s*)[<>]+\\s*)|\\s+');
-
-class BitSet {
-  constructor() {
-    this.vector = new Int32Array(1);
-  }
-  has(n) {
-    return (this.vector[n >>> 5] & 1 << n) !== 0;
-  }
-  add(n) {
-    const i = n >>> 5,
-          requiredLength = i + 1;
-    let vector = this.vector;var _vector = vector;
-    let length = _vector.length;
-    if (requiredLength > length) {
-      while (requiredLength > (length *= 2));
-      const oldValues = vector;
-      vector = new Int32Array(length);
-      vector.set(oldValues);
-      this.vector = vector;
-    }
-    vector[i] |= 1 << n;
-  }
-}
-
-function evaluate(template, values) {
-  values = values.map(toStringishArray);
-  const children = [];
-  let valuesStart = 0;
-  for (let i = 0, iMax = template.length; i < iMax; i++) {
-    const word = template[i];
-    if (formatSymbol in word) {
-      children.push(word);
-      continue;
-    }
-    const contents = word.contents,
-          placeholderCount = word.placeholderCount,
-          prefix = word.prefix,
-          onlyPrefixOnce = word.onlyPrefixOnce;
-    const kMax = contents.length;
-    const valuesEnd = valuesStart + placeholderCount;
-    const tuples = cartesianProduct(values, valuesStart, valuesEnd);
-    valuesStart = valuesEnd;
-    for (let j = 0, jMax = tuples.length; j < jMax; j++) {
-      const needSpace = j > 0;
-      const tuple = tuples[j];
-      (needSpace || prefix) && children.push(needSpace && (onlyPrefixOnce || !prefix) ? unquotedSpace : prefix);
-      let interpolatedContents = [];
-      let untested = null;
-      let quoting = false;
-      let tupleIndex = 0;
-      for (let k = 0; k < kMax; k++) {
-        const content = contents[k];
-        if (content === PLACEHOLDER) {
-          const value = tuple[tupleIndex++];
-          if (quoting) {
-            interpolatedContents.push(value);
-          } else {
-            if (isObject(value) && formatSymbol in value) {
-              if (interpolatedContents.length) {
-                children.push(new ShellStringText(interpolatedContents, untested));
-                interpolatedContents = [];
-                untested = null;
-              }
-              children.push(value);
-            } else {
-              (untested || (untested = new BitSet())).add(interpolatedContents.length);
-              interpolatedContents.push(value);
-            }
-          }
-        } else {
-          interpolatedContents.push(content);
-          content === null && (quoting = !quoting);
-        }
-      }
-      if (interpolatedContents.length) {
-        children.push(new ShellStringText(interpolatedContents, untested));
-      }
-    }
-  }
-  return children;
-}
-const primToStringish = value => value == null ? '' + value : value;
-function toStringishArray(value) {
-  let array;
-  switch (true) {
-    default:
-      if (isObject(value)) {
-        if (Array.isArray(value)) {
-          array = value;break;
-        }
-        if (Symbol.iterator in value) {
-          array = Array.from(value);break;
-        }
-      }
-      array = [value];
-  }
-  return array.map(primToStringish);
-}
-function cartesianProduct(arrs, start, end) {
-  const size = end - start;
-  let resultLength = 1;
-  for (let i = start; i < end; i++) {
-    resultLength *= arrs[i].length;
-  }
-  if (resultLength > 1e6) {
-    throw new RangeError("Far too many elements to interpolate");
-  }
-  const result = new Array(resultLength);
-  const indices = new Array(size).fill(0);
-  for (let i = 0; i < resultLength; i++) {
-    const value = result[i] = new Array(size);
-    for (let j = 0; j < size; j++) {
-      value[j] = arrs[j + start][indices[j]];
-    }
-    for (let j = size - 1; j >= 0; j--) {
-      if (++indices[j] < arrs[j + start].length) break;
-      indices[j] = 0;
-    }
-  }
-  return result;
-}
-const unquotedSpace = new ShellStringUnquoted(' ');
-
-/**
- * A ShellString represents a shell command after it has been interpolated, but
- * before it has been formatted for a particular platform. ShellStrings are
- * useful if you want to prepare a command for a different platform than the
- * current one, for instance.
- *
- * To create a ShellString, use `ShellString.sh` the same way you would use
- * top-level `sh`.
- */
-class ShellString {
-  /** @hideconstructor */
-  constructor(children) {
-    this.children = children;
-  }
-  /**
-   * `ShellString.sh` is a template tag just like `sh`; the only difference is
-   * that this function returns a ShellString which has not yet been formatted
-   * into a String.
-   * @returns {ShellString}
-   * @function sh
-   * @static
-   * @memberof ShellString
-   */
-  static sh(templateSpans) {
-    for (var _len = arguments.length, values = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-      values[_key - 1] = arguments[_key];
-    }
-    return new ShellString(evaluate(parse(templateSpans), values));
-  }
-  /**
-   * A method to format a ShellString into a regular String formatted for a
-   * particular platform.
-   *
-   * @param {String} [platform] a value that `process.platform` might take:
-   * `'win32'`, `'linux'`, etc.; determines how the string is to be formatted.
-   * When omitted, effectively the same as `process.platform`.
-   * @returns {String}
-   */
-  toString(platform) {
-    return this[formatSymbol](Formatter.for(platform));
-  }
-  [formatSymbol](formatter) {
-    let context = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : formatter.createContext(this);
-    return this.children.map(child => child[formatSymbol](formatter, context)).join('');
-  }
-  [preformatSymbol](context) {
-    const children = this.children;
-    for (let i = 0, iMax = children.length; i < iMax; i++) {
-      const child = children[i];
-      if (preformatSymbol in child) {
-        child[preformatSymbol](context);
-      }
-    }
-  }
-}
-
-/**
- * A Windows-specific version of {@link quoteForShell}.
- * @param {String} text to be quoted
- * @param {Boolean} [forceQuote] whether to always add quotes even if the string
- * is already safe. Defaults to `false`.
- */
-
-/**
- * A Unix-specific version of {@link quoteForShell}.
- * @param {String} text to be quoted
- * @param {Boolean} [forceQuote] whether to always add quotes even if the string
- * is already safe. Defaults to `false`.
- */
-
-/**
- * Quotes a string for injecting into a shell command.
- *
- * This function is exposed for some hypothetical case when the `sh` DSL simply
- * won't do; `sh` is expected to be the more convenient option almost always.
- * Compare:
- *
- * ```javascript
- * console.log('cmd' + args.map(a => ' ' + quoteForShell(a)).join(''));
- * console.log(sh`cmd ${args}`); // same as above
- *
- * console.log('cmd' + args.map(a => ' ' + quoteForShell(a, true)).join(''));
- * console.log(sh`cmd "${args}"`); // same as above
- * ```
- *
- * Additionally, on Windows, `sh` checks the entire command string for pipes,
- * which subtly change how arguments need to be quoted. If your commands may
- * involve pipes, you are strongly encouraged to use `sh` and not try to roll
- * your own with `quoteForShell`.
- *
- * @param {String} text to be quoted
- * @param {Boolean} [forceQuote] whether to always add quotes even if the string
- * is already safe. Defaults to `false`.
- * @param {String} [platform] a value that `process.platform` might take:
- * `'win32'`, `'linux'`, etc.; determines how the string is to be formatted.
- * When omitted, effectively the same as `process.platform`.
- *
- * @returns {String} a string that is safe for the current (or specified)
- * platform.
- */
-function quoteForShell(text, forceQuote, platform) {
-  return Formatter.for(platform).quote(text, forceQuote);
-}
-
-/**
- * A string template tag for safely constructing cross-platform shell commands.
- *
- * An `sh` template is not actually treated as a literal string to be
- * interpolated; instead, it is a tiny DSL designed to make working with shell
- * strings safe, simple, and straightforward. To get started quickly, see the
- * examples below. {@link #the-sh-dsl More detailed documentation} is available
- * further down.
- *
- * @name sh
- * @example
- * const title = '"this" & "that"';
- * sh`script --title=${title}`; // => "script '--title=\"this\" & \"that\"'"
- * // Note: these examples show results for non-Windows platforms.
- * // On Windows, the above would instead be
- * // 'script ^"--title=\\^"this\\^" ^& \\^"that\\^"^"'.
- *
- * const names = ['file1', 'file 2'];
- * sh`rimraf ${names}.txt`; // => "rimraf file1.txt 'file 2.txt'"
- *
- * const cmd1 = ['cat', 'file 1.txt', 'file 2.txt'];
- * const cmd2 = ['use-input', '-abc'];
- * sh`${cmd1}|${cmd2}`; // => "cat 'file 1.txt' 'file 2.txt'|use-input -abc"
- *
- * @returns {String} - a string formatted for the platform Node is currently
- * running on.
- */
-const sh = function () {
-  return ShellString.sh.apply(ShellString, arguments).toString();
-};
-
-/**
- * This function permits raw strings to be interpolated into a `sh` template.
- *
- * **IMPORTANT**: If you're using Puka due to security concerns, make sure you
- * don't pass any untrusted content to `unquoted`. This may be obvious, but
- * stray punctuation in an `unquoted` section can compromise the safety of the
- * entire shell command.
- *
- * @param value - any value (it will be treated as a string)
- *
- * @example
- * const both = true;
- * sh`foo ${unquoted(both ? '&&' : '||')} bar`; // => 'foo && bar'
- */
-const unquoted = value => new ShellStringUnquoted(value);
-
-exports.Formatter = Formatter;
-exports.ShellString = ShellString;
-exports.ShellStringText = ShellStringText;
-exports.ShellStringUnquoted = ShellStringUnquoted;
-exports.quoteForCmd = quoteForCmd;
-exports.quoteForSh = quoteForSh;
-exports.quoteForShell = quoteForShell;
-exports.sh = sh;
-exports.shellStringSemicolon = shellStringSemicolon;
-exports.formatSymbol = formatSymbol;
-exports.preformatSymbol = preformatSymbol;
-exports.unquoted = unquoted;
-
-
-/***/ }),
-/* 781 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var once = __webpack_require__(83)
-var eos = __webpack_require__(173)
-var fs = __webpack_require__(5) // we only need fs to get the ReadStream and WriteStream prototypes
-
-var noop = function () {}
-
-var isFn = function (fn) {
-  return typeof fn === 'function'
-}
-
-var isFS = function (stream) {
-  if (!fs) return false // browser
-  return (stream instanceof (fs.ReadStream || noop) || stream instanceof (fs.WriteStream || noop)) && isFn(stream.close)
-}
-
-var isRequest = function (stream) {
-  return stream.setHeader && isFn(stream.abort)
-}
-
-var destroyer = function (stream, reading, writing, callback) {
-  callback = once(callback)
-
-  var closed = false
-  stream.on('close', function () {
-    closed = true
-  })
-
-  eos(stream, {readable: reading, writable: writing}, function (err) {
-    if (err) return callback(err)
-    closed = true
-    callback()
-  })
-
-  var destroyed = false
-  return function (err) {
-    if (closed) return
-    if (destroyed) return
-    destroyed = true
-
-    if (isFS(stream)) return stream.close(noop) // use close for fs streams to avoid fd leaks
-    if (isRequest(stream)) return stream.abort() // request.destroy just do .end - .abort is what we want
-
-    if (isFn(stream.destroy)) return stream.destroy()
-
-    callback(err || new Error('stream was destroyed'))
-  }
-}
-
-var call = function (fn) {
-  fn()
-}
-
-var pipe = function (from, to) {
-  return from.pipe(to)
-}
-
-var pump = function () {
-  var streams = Array.prototype.slice.call(arguments)
-  var callback = isFn(streams[streams.length - 1] || noop) && streams.pop() || noop
-
-  if (Array.isArray(streams[0])) streams = streams[0]
-  if (streams.length < 2) throw new Error('pump requires two streams per minimum')
-
-  var error
-  var destroys = streams.map(function (stream, i) {
-    var reading = i < streams.length - 1
-    var writing = i > 0
-    return destroyer(stream, reading, writing, function (err) {
-      if (!error) error = err
-      if (err) destroys.forEach(call)
-      if (reading) return
-      destroys.forEach(call)
-      callback(error)
-    })
-  })
-
-  return streams.reduce(pipe)
-}
-
-module.exports = pump
-
-
-/***/ }),
-/* 782 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var pump = __webpack_require__(783)
-var inherits = __webpack_require__(61)
-var Duplexify = __webpack_require__(386)
-
-var toArray = function(args) {
-  if (!args.length) return []
-  return Array.isArray(args[0]) ? args[0] : Array.prototype.slice.call(args)
-}
-
-var define = function(opts) {
-  var Pumpify = function() {
-    var streams = toArray(arguments)
-    if (!(this instanceof Pumpify)) return new Pumpify(streams)
-    Duplexify.call(this, null, null, opts)
-    if (streams.length) this.setPipeline(streams)
-  }
-
-  inherits(Pumpify, Duplexify)
-
-  Pumpify.prototype.setPipeline = function() {
-    var streams = toArray(arguments)
-    var self = this
-    var ended = false
-    var w = streams[0]
-    var r = streams[streams.length-1]
-
-    r = r.readable ? r : null
-    w = w.writable ? w : null
-
-    var onclose = function() {
-      streams[0].emit('error', new Error('stream was destroyed'))
-    }
-
-    this.on('close', onclose)
-    this.on('prefinish', function() {
-      if (!ended) self.cork()
-    })
-
-    pump(streams, function(err) {
-      self.removeListener('close', onclose)
-      if (err) return self.destroy(err.message === 'premature close' ? null : err)
-      ended = true
-      // pump ends after the last stream is not writable *but*
-      // pumpify still forwards the readable part so we need to catch errors
-      // still, so reenable autoDestroy in this case
-      if (self._autoDestroy === false) self._autoDestroy = true
-      self.uncork()
-    })
-
-    if (this.destroyed) return onclose()
-    this.setWritable(w)
-    this.setReadable(r)
-  }
-
-  return Pumpify
-}
-
-module.exports = define({autoDestroy:false, destroy:false})
-module.exports.obj = define({autoDestroy: false, destroy:false, objectMode:true, highWaterMark:16})
-module.exports.ctor = define
-
-
-/***/ }),
-/* 783 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var once = __webpack_require__(83)
-var eos = __webpack_require__(173)
-var fs = __webpack_require__(5) // we only need fs to get the ReadStream and WriteStream prototypes
-
-var noop = function () {}
-var ancient = /^v?\.0/.test(process.version)
-
-var isFn = function (fn) {
-  return typeof fn === 'function'
-}
-
-var isFS = function (stream) {
-  if (!ancient) return false // newer node version do not need to care about fs is a special way
-  if (!fs) return false // browser
-  return (stream instanceof (fs.ReadStream || noop) || stream instanceof (fs.WriteStream || noop)) && isFn(stream.close)
-}
-
-var isRequest = function (stream) {
-  return stream.setHeader && isFn(stream.abort)
-}
-
-var destroyer = function (stream, reading, writing, callback) {
-  callback = once(callback)
-
-  var closed = false
-  stream.on('close', function () {
-    closed = true
-  })
-
-  eos(stream, {readable: reading, writable: writing}, function (err) {
-    if (err) return callback(err)
-    closed = true
-    callback()
-  })
-
-  var destroyed = false
-  return function (err) {
-    if (closed) return
-    if (destroyed) return
-    destroyed = true
-
-    if (isFS(stream)) return stream.close(noop) // use close for fs streams to avoid fd leaks
-    if (isRequest(stream)) return stream.abort() // request.destroy just do .end - .abort is what we want
-
-    if (isFn(stream.destroy)) return stream.destroy()
-
-    callback(err || new Error('stream was destroyed'))
-  }
-}
-
-var call = function (fn) {
-  fn()
-}
-
-var pipe = function (from, to) {
-  return from.pipe(to)
-}
-
-var pump = function () {
-  var streams = Array.prototype.slice.call(arguments)
-  var callback = isFn(streams[streams.length - 1] || noop) && streams.pop() || noop
-
-  if (Array.isArray(streams[0])) streams = streams[0]
-  if (streams.length < 2) throw new Error('pump requires two streams per minimum')
-
-  var error
-  var destroys = streams.map(function (stream, i) {
-    var reading = i < streams.length - 1
-    var writing = i > 0
-    return destroyer(stream, reading, writing, function (err) {
-      if (!error) error = err
-      if (err) destroys.forEach(call)
-      if (reading) return
-      destroys.forEach(call)
-      callback(error)
-    })
-  })
-
-  streams.reduce(pipe)
-}
-
-module.exports = pump
-
-
-/***/ }),
-/* 784 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var utils = __webpack_require__(405);
-
-var has = Object.prototype.hasOwnProperty;
-
-var defaults = {
-    allowDots: false,
-    allowPrototypes: false,
-    arrayLimit: 20,
-    decoder: utils.decode,
-    delimiter: '&',
-    depth: 5,
-    parameterLimit: 1000,
-    plainObjects: false,
-    strictNullHandling: false
-};
-
-var parseValues = function parseQueryStringValues(str, options) {
-    var obj = {};
-    var cleanStr = options.ignoreQueryPrefix ? str.replace(/^\?/, '') : str;
-    var limit = options.parameterLimit === Infinity ? undefined : options.parameterLimit;
-    var parts = cleanStr.split(options.delimiter, limit);
-
-    for (var i = 0; i < parts.length; ++i) {
-        var part = parts[i];
-
-        var bracketEqualsPos = part.indexOf(']=');
-        var pos = bracketEqualsPos === -1 ? part.indexOf('=') : bracketEqualsPos + 1;
-
-        var key, val;
-        if (pos === -1) {
-            key = options.decoder(part, defaults.decoder);
-            val = options.strictNullHandling ? null : '';
-        } else {
-            key = options.decoder(part.slice(0, pos), defaults.decoder);
-            val = options.decoder(part.slice(pos + 1), defaults.decoder);
-        }
-        if (has.call(obj, key)) {
-            obj[key] = [].concat(obj[key]).concat(val);
-        } else {
-            obj[key] = val;
-        }
-    }
-
-    return obj;
-};
-
-var parseObject = function (chain, val, options) {
-    var leaf = val;
-
-    for (var i = chain.length - 1; i >= 0; --i) {
-        var obj;
-        var root = chain[i];
-
-        if (root === '[]') {
-            obj = [];
-            obj = obj.concat(leaf);
-        } else {
-            obj = options.plainObjects ? Object.create(null) : {};
-            var cleanRoot = root.charAt(0) === '[' && root.charAt(root.length - 1) === ']' ? root.slice(1, -1) : root;
-            var index = parseInt(cleanRoot, 10);
-            if (
-                !isNaN(index)
-                && root !== cleanRoot
-                && String(index) === cleanRoot
-                && index >= 0
-                && (options.parseArrays && index <= options.arrayLimit)
-            ) {
-                obj = [];
-                obj[index] = leaf;
-            } else {
-                obj[cleanRoot] = leaf;
-            }
-        }
-
-        leaf = obj;
-    }
-
-    return leaf;
-};
-
-var parseKeys = function parseQueryStringKeys(givenKey, val, options) {
-    if (!givenKey) {
-        return;
-    }
-
-    // Transform dot notation to bracket notation
-    var key = options.allowDots ? givenKey.replace(/\.([^.[]+)/g, '[$1]') : givenKey;
-
-    // The regex chunks
-
-    var brackets = /(\[[^[\]]*])/;
-    var child = /(\[[^[\]]*])/g;
-
-    // Get the parent
-
-    var segment = brackets.exec(key);
-    var parent = segment ? key.slice(0, segment.index) : key;
-
-    // Stash the parent if it exists
-
-    var keys = [];
-    if (parent) {
-        // If we aren't using plain objects, optionally prefix keys
-        // that would overwrite object prototype properties
-        if (!options.plainObjects && has.call(Object.prototype, parent)) {
-            if (!options.allowPrototypes) {
-                return;
-            }
-        }
-
-        keys.push(parent);
-    }
-
-    // Loop through children appending to the array until we hit depth
-
-    var i = 0;
-    while ((segment = child.exec(key)) !== null && i < options.depth) {
-        i += 1;
-        if (!options.plainObjects && has.call(Object.prototype, segment[1].slice(1, -1))) {
-            if (!options.allowPrototypes) {
-                return;
-            }
-        }
-        keys.push(segment[1]);
-    }
-
-    // If there's a remainder, just add whatever is left
-
-    if (segment) {
-        keys.push('[' + key.slice(segment.index) + ']');
-    }
-
-    return parseObject(keys, val, options);
-};
-
-module.exports = function (str, opts) {
-    var options = opts ? utils.assign({}, opts) : {};
-
-    if (options.decoder !== null && options.decoder !== undefined && typeof options.decoder !== 'function') {
-        throw new TypeError('Decoder has to be a function.');
-    }
-
-    options.ignoreQueryPrefix = options.ignoreQueryPrefix === true;
-    options.delimiter = typeof options.delimiter === 'string' || utils.isRegExp(options.delimiter) ? options.delimiter : defaults.delimiter;
-    options.depth = typeof options.depth === 'number' ? options.depth : defaults.depth;
-    options.arrayLimit = typeof options.arrayLimit === 'number' ? options.arrayLimit : defaults.arrayLimit;
-    options.parseArrays = options.parseArrays !== false;
-    options.decoder = typeof options.decoder === 'function' ? options.decoder : defaults.decoder;
-    options.allowDots = typeof options.allowDots === 'boolean' ? options.allowDots : defaults.allowDots;
-    options.plainObjects = typeof options.plainObjects === 'boolean' ? options.plainObjects : defaults.plainObjects;
-    options.allowPrototypes = typeof options.allowPrototypes === 'boolean' ? options.allowPrototypes : defaults.allowPrototypes;
-    options.parameterLimit = typeof options.parameterLimit === 'number' ? options.parameterLimit : defaults.parameterLimit;
-    options.strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : defaults.strictNullHandling;
-
-    if (str === '' || str === null || typeof str === 'undefined') {
-        return options.plainObjects ? Object.create(null) : {};
-    }
-
-    var tempObj = typeof str === 'string' ? parseValues(str, options) : str;
-    var obj = options.plainObjects ? Object.create(null) : {};
-
-    // Iterate over the keys and setup the new object
-
-    var keys = Object.keys(tempObj);
-    for (var i = 0; i < keys.length; ++i) {
-        var key = keys[i];
-        var newObj = parseKeys(key, tempObj[key], options);
-        obj = utils.merge(obj, newObj, options);
-    }
-
-    return utils.compact(obj);
-};
-
-
-/***/ }),
-/* 785 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var utils = __webpack_require__(405);
-var formats = __webpack_require__(403);
-
-var arrayPrefixGenerators = {
-    brackets: function brackets(prefix) { // eslint-disable-line func-name-matching
-        return prefix + '[]';
-    },
-    indices: function indices(prefix, key) { // eslint-disable-line func-name-matching
-        return prefix + '[' + key + ']';
-    },
-    repeat: function repeat(prefix) { // eslint-disable-line func-name-matching
-        return prefix;
-    }
-};
-
-var toISO = Date.prototype.toISOString;
-
-var defaults = {
-    delimiter: '&',
-    encode: true,
-    encoder: utils.encode,
-    encodeValuesOnly: false,
-    serializeDate: function serializeDate(date) { // eslint-disable-line func-name-matching
-        return toISO.call(date);
-    },
-    skipNulls: false,
-    strictNullHandling: false
-};
-
-var stringify = function stringify( // eslint-disable-line func-name-matching
-    object,
-    prefix,
-    generateArrayPrefix,
-    strictNullHandling,
-    skipNulls,
-    encoder,
-    filter,
-    sort,
-    allowDots,
-    serializeDate,
-    formatter,
-    encodeValuesOnly
-) {
-    var obj = object;
-    if (typeof filter === 'function') {
-        obj = filter(prefix, obj);
-    } else if (obj instanceof Date) {
-        obj = serializeDate(obj);
-    } else if (obj === null) {
-        if (strictNullHandling) {
-            return encoder && !encodeValuesOnly ? encoder(prefix, defaults.encoder) : prefix;
-        }
-
-        obj = '';
-    }
-
-    if (typeof obj === 'string' || typeof obj === 'number' || typeof obj === 'boolean' || utils.isBuffer(obj)) {
-        if (encoder) {
-            var keyValue = encodeValuesOnly ? prefix : encoder(prefix, defaults.encoder);
-            return [formatter(keyValue) + '=' + formatter(encoder(obj, defaults.encoder))];
-        }
-        return [formatter(prefix) + '=' + formatter(String(obj))];
-    }
-
-    var values = [];
-
-    if (typeof obj === 'undefined') {
-        return values;
-    }
-
-    var objKeys;
-    if (Array.isArray(filter)) {
-        objKeys = filter;
-    } else {
-        var keys = Object.keys(obj);
-        objKeys = sort ? keys.sort(sort) : keys;
-    }
-
-    for (var i = 0; i < objKeys.length; ++i) {
-        var key = objKeys[i];
-
-        if (skipNulls && obj[key] === null) {
-            continue;
-        }
-
-        if (Array.isArray(obj)) {
-            values = values.concat(stringify(
-                obj[key],
-                generateArrayPrefix(prefix, key),
-                generateArrayPrefix,
-                strictNullHandling,
-                skipNulls,
-                encoder,
-                filter,
-                sort,
-                allowDots,
-                serializeDate,
-                formatter,
-                encodeValuesOnly
-            ));
-        } else {
-            values = values.concat(stringify(
-                obj[key],
-                prefix + (allowDots ? '.' + key : '[' + key + ']'),
-                generateArrayPrefix,
-                strictNullHandling,
-                skipNulls,
-                encoder,
-                filter,
-                sort,
-                allowDots,
-                serializeDate,
-                formatter,
-                encodeValuesOnly
-            ));
-        }
-    }
-
-    return values;
-};
-
-module.exports = function (object, opts) {
-    var obj = object;
-    var options = opts ? utils.assign({}, opts) : {};
-
-    if (options.encoder !== null && options.encoder !== undefined && typeof options.encoder !== 'function') {
-        throw new TypeError('Encoder has to be a function.');
-    }
-
-    var delimiter = typeof options.delimiter === 'undefined' ? defaults.delimiter : options.delimiter;
-    var strictNullHandling = typeof options.strictNullHandling === 'boolean' ? options.strictNullHandling : defaults.strictNullHandling;
-    var skipNulls = typeof options.skipNulls === 'boolean' ? options.skipNulls : defaults.skipNulls;
-    var encode = typeof options.encode === 'boolean' ? options.encode : defaults.encode;
-    var encoder = typeof options.encoder === 'function' ? options.encoder : defaults.encoder;
-    var sort = typeof options.sort === 'function' ? options.sort : null;
-    var allowDots = typeof options.allowDots === 'undefined' ? false : options.allowDots;
-    var serializeDate = typeof options.serializeDate === 'function' ? options.serializeDate : defaults.serializeDate;
-    var encodeValuesOnly = typeof options.encodeValuesOnly === 'boolean' ? options.encodeValuesOnly : defaults.encodeValuesOnly;
-    if (typeof options.format === 'undefined') {
-        options.format = formats['default'];
-    } else if (!Object.prototype.hasOwnProperty.call(formats.formatters, options.format)) {
-        throw new TypeError('Unknown format option provided.');
-    }
-    var formatter = formats.formatters[options.format];
-    var objKeys;
-    var filter;
-
-    if (typeof options.filter === 'function') {
-        filter = options.filter;
-        obj = filter('', obj);
-    } else if (Array.isArray(options.filter)) {
-        filter = options.filter;
-        objKeys = filter;
-    }
-
-    var keys = [];
-
-    if (typeof obj !== 'object' || obj === null) {
-        return '';
-    }
-
-    var arrayFormat;
-    if (options.arrayFormat in arrayPrefixGenerators) {
-        arrayFormat = options.arrayFormat;
-    } else if ('indices' in options) {
-        arrayFormat = options.indices ? 'indices' : 'repeat';
-    } else {
-        arrayFormat = 'indices';
-    }
-
-    var generateArrayPrefix = arrayPrefixGenerators[arrayFormat];
-
-    if (!objKeys) {
-        objKeys = Object.keys(obj);
-    }
-
-    if (sort) {
-        objKeys.sort(sort);
-    }
-
-    for (var i = 0; i < objKeys.length; ++i) {
-        var key = objKeys[i];
-
-        if (skipNulls && obj[key] === null) {
-            continue;
-        }
-
-        keys = keys.concat(stringify(
-            obj[key],
-            key,
-            generateArrayPrefix,
-            strictNullHandling,
-            skipNulls,
-            encode ? encoder : null,
-            filter,
-            sort,
-            allowDots,
-            serializeDate,
-            formatter,
-            encodeValuesOnly
-        ));
-    }
-
-    var joined = keys.join(delimiter);
-    var prefix = options.addQueryPrefix === true ? '?' : '';
-
-    return joined.length > 0 ? prefix + joined : '';
-};
-
-
-/***/ }),
-/* 786 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var strictUriEncode = __webpack_require__(943);
-var objectAssign = __webpack_require__(303);
-var decodeComponent = __webpack_require__(630);
-
-function encoderForArrayFormat(opts) {
-	switch (opts.arrayFormat) {
-		case 'index':
-			return function (key, value, index) {
-				return value === null ? [
-					encode(key, opts),
-					'[',
-					index,
-					']'
-				].join('') : [
-					encode(key, opts),
-					'[',
-					encode(index, opts),
-					']=',
-					encode(value, opts)
-				].join('');
-			};
-
-		case 'bracket':
-			return function (key, value) {
-				return value === null ? encode(key, opts) : [
-					encode(key, opts),
-					'[]=',
-					encode(value, opts)
-				].join('');
-			};
-
-		default:
-			return function (key, value) {
-				return value === null ? encode(key, opts) : [
-					encode(key, opts),
-					'=',
-					encode(value, opts)
-				].join('');
-			};
-	}
-}
-
-function parserForArrayFormat(opts) {
-	var result;
-
-	switch (opts.arrayFormat) {
-		case 'index':
-			return function (key, value, accumulator) {
-				result = /\[(\d*)\]$/.exec(key);
-
-				key = key.replace(/\[\d*\]$/, '');
-
-				if (!result) {
-					accumulator[key] = value;
-					return;
-				}
-
-				if (accumulator[key] === undefined) {
-					accumulator[key] = {};
-				}
-
-				accumulator[key][result[1]] = value;
-			};
-
-		case 'bracket':
-			return function (key, value, accumulator) {
-				result = /(\[\])$/.exec(key);
-				key = key.replace(/\[\]$/, '');
-
-				if (!result) {
-					accumulator[key] = value;
-					return;
-				} else if (accumulator[key] === undefined) {
-					accumulator[key] = [value];
-					return;
-				}
-
-				accumulator[key] = [].concat(accumulator[key], value);
-			};
-
-		default:
-			return function (key, value, accumulator) {
-				if (accumulator[key] === undefined) {
-					accumulator[key] = value;
-					return;
-				}
-
-				accumulator[key] = [].concat(accumulator[key], value);
-			};
-	}
-}
-
-function encode(value, opts) {
-	if (opts.encode) {
-		return opts.strict ? strictUriEncode(value) : encodeURIComponent(value);
-	}
-
-	return value;
-}
-
-function keysSorter(input) {
-	if (Array.isArray(input)) {
-		return input.sort();
-	} else if (typeof input === 'object') {
-		return keysSorter(Object.keys(input)).sort(function (a, b) {
-			return Number(a) - Number(b);
-		}).map(function (key) {
-			return input[key];
-		});
-	}
-
-	return input;
-}
-
-function extract(str) {
-	var queryStart = str.indexOf('?');
-	if (queryStart === -1) {
-		return '';
-	}
-	return str.slice(queryStart + 1);
-}
-
-function parse(str, opts) {
-	opts = objectAssign({arrayFormat: 'none'}, opts);
-
-	var formatter = parserForArrayFormat(opts);
-
-	// Create an object with no prototype
-	// https://github.com/sindresorhus/query-string/issues/47
-	var ret = Object.create(null);
-
-	if (typeof str !== 'string') {
-		return ret;
-	}
-
-	str = str.trim().replace(/^[?#&]/, '');
-
-	if (!str) {
-		return ret;
-	}
-
-	str.split('&').forEach(function (param) {
-		var parts = param.replace(/\+/g, ' ').split('=');
-		// Firefox (pre 40) decodes `%3D` to `=`
-		// https://github.com/sindresorhus/query-string/pull/37
-		var key = parts.shift();
-		var val = parts.length > 0 ? parts.join('=') : undefined;
-
-		// missing `=` should be `null`:
-		// http://w3.org/TR/2012/WD-url-20120524/#collect-url-parameters
-		val = val === undefined ? null : decodeComponent(val);
-
-		formatter(decodeComponent(key), val, ret);
-	});
-
-	return Object.keys(ret).sort().reduce(function (result, key) {
-		var val = ret[key];
-		if (Boolean(val) && typeof val === 'object' && !Array.isArray(val)) {
-			// Sort object keys, not values
-			result[key] = keysSorter(val);
-		} else {
-			result[key] = val;
-		}
-
-		return result;
-	}, Object.create(null));
-}
-
-exports.extract = extract;
-exports.parse = parse;
-
-exports.stringify = function (obj, opts) {
-	var defaults = {
-		encode: true,
-		strict: true,
-		arrayFormat: 'none'
-	};
-
-	opts = objectAssign(defaults, opts);
-
-	if (opts.sort === false) {
-		opts.sort = function () {};
-	}
-
-	var formatter = encoderForArrayFormat(opts);
-
-	return obj ? Object.keys(obj).sort(opts.sort).map(function (key) {
-		var val = obj[key];
-
-		if (val === undefined) {
-			return '';
-		}
-
-		if (val === null) {
-			return encode(key, opts);
-		}
-
-		if (Array.isArray(val)) {
-			var result = [];
-
-			val.slice().forEach(function (val2) {
-				if (val2 === undefined) {
-					return;
-				}
-
-				result.push(formatter(key, val2, result.length));
-			});
-
-			return result.join('&');
-		}
-
-		return encode(key, opts) + '=' + encode(val, opts);
-	}).filter(function (x) {
-		return x.length > 0;
-	}).join('&') : '';
-};
-
-exports.parseUrl = function (str, opts) {
-	return {
-		url: str.split('?')[0] || '',
-		query: parse(extract(str), opts)
-	};
-};
-
-
-/***/ }),
-/* 787 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * randomatic <https://github.com/jonschlinkert/randomatic>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-var isNumber = __webpack_require__(788);
-var typeOf = __webpack_require__(789);
-var mathRandom = __webpack_require__(751);
-
-/**
- * Expose `randomatic`
- */
-
-module.exports = randomatic;
-module.exports.isCrypto = !!mathRandom.cryptographic;
-
-/**
- * Available mask characters
- */
-
-var type = {
-  lower: 'abcdefghijklmnopqrstuvwxyz',
-  upper: 'ABCDEFGHIJKLMNOPQRSTUVWXYZ',
-  number: '0123456789',
-  special: '~!@#$%^&()_+-={}[];\',.'
-};
-
-type.all = type.lower + type.upper + type.number + type.special;
-
-/**
- * Generate random character sequences of a specified `length`,
- * based on the given `pattern`.
- *
- * @param {String} `pattern` The pattern to use for generating the random string.
- * @param {String} `length` The length of the string to generate.
- * @param {String} `options`
- * @return {String}
- * @api public
- */
-
-function randomatic(pattern, length, options) {
-  if (typeof pattern === 'undefined') {
-    throw new Error('randomatic expects a string or number.');
-  }
-
-  var custom = false;
-  if (arguments.length === 1) {
-    if (typeof pattern === 'string') {
-      length = pattern.length;
-
-    } else if (isNumber(pattern)) {
-      options = {};
-      length = pattern;
-      pattern = '*';
-    }
-  }
-
-  if (typeOf(length) === 'object' && length.hasOwnProperty('chars')) {
-    options = length;
-    pattern = options.chars;
-    length = pattern.length;
-    custom = true;
-  }
-
-  var opts = options || {};
-  var mask = '';
-  var res = '';
-
-  // Characters to be used
-  if (pattern.indexOf('?') !== -1) mask += opts.chars;
-  if (pattern.indexOf('a') !== -1) mask += type.lower;
-  if (pattern.indexOf('A') !== -1) mask += type.upper;
-  if (pattern.indexOf('0') !== -1) mask += type.number;
-  if (pattern.indexOf('!') !== -1) mask += type.special;
-  if (pattern.indexOf('*') !== -1) mask += type.all;
-  if (custom) mask += pattern;
-
-  while (length--) {
-    res += mask.charAt(parseInt(mathRandom() * mask.length, 10));
-  }
-  return res;
-};
-
-
-/***/ }),
-/* 788 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * is-number <https://github.com/jonschlinkert/is-number>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-module.exports = function isNumber(num) {
-  var type = typeof num;
-
-  if (type === 'string' || num instanceof String) {
-    // an empty string would be coerced to true with the below logic
-    if (!num.trim()) return false;
-  } else if (type !== 'number' && !(num instanceof Number)) {
-    return false;
-  }
-
-  return (num - num + 1) >= 0;
-};
-
-
-/***/ }),
-/* 789 */
-/***/ (function(module, exports) {
-
-var toString = Object.prototype.toString;
-
-module.exports = function kindOf(val) {
-  if (val === void 0) return 'undefined';
-  if (val === null) return 'null';
-
-  var type = typeof val;
-  if (type === 'boolean') return 'boolean';
-  if (type === 'string') return 'string';
-  if (type === 'number') return 'number';
-  if (type === 'symbol') return 'symbol';
-  if (type === 'function') {
-    return isGeneratorFn(val) ? 'generatorfunction' : 'function';
-  }
-
-  if (isArray(val)) return 'array';
-  if (isBuffer(val)) return 'buffer';
-  if (isArguments(val)) return 'arguments';
-  if (isDate(val)) return 'date';
-  if (isError(val)) return 'error';
-  if (isRegexp(val)) return 'regexp';
-
-  switch (ctorName(val)) {
-    case 'Symbol': return 'symbol';
-    case 'Promise': return 'promise';
-
-    // Set, Map, WeakSet, WeakMap
-    case 'WeakMap': return 'weakmap';
-    case 'WeakSet': return 'weakset';
-    case 'Map': return 'map';
-    case 'Set': return 'set';
-
-    // 8-bit typed arrays
-    case 'Int8Array': return 'int8array';
-    case 'Uint8Array': return 'uint8array';
-    case 'Uint8ClampedArray': return 'uint8clampedarray';
-
-    // 16-bit typed arrays
-    case 'Int16Array': return 'int16array';
-    case 'Uint16Array': return 'uint16array';
-
-    // 32-bit typed arrays
-    case 'Int32Array': return 'int32array';
-    case 'Uint32Array': return 'uint32array';
-    case 'Float32Array': return 'float32array';
-    case 'Float64Array': return 'float64array';
-  }
-
-  if (isGeneratorObj(val)) {
-    return 'generator';
-  }
-
-  // Non-plain objects
-  type = toString.call(val);
-  switch (type) {
-    case '[object Object]': return 'object';
-    // iterators
-    case '[object Map Iterator]': return 'mapiterator';
-    case '[object Set Iterator]': return 'setiterator';
-    case '[object String Iterator]': return 'stringiterator';
-    case '[object Array Iterator]': return 'arrayiterator';
-  }
-
-  // other
-  return type.slice(8, -1).toLowerCase().replace(/\s/g, '');
-};
-
-function ctorName(val) {
-  return val.constructor ? val.constructor.name : null;
-}
-
-function isArray(val) {
-  if (Array.isArray) return Array.isArray(val);
-  return val instanceof Array;
-}
-
-function isError(val) {
-  return val instanceof Error || (typeof val.message === 'string' && val.constructor && typeof val.constructor.stackTraceLimit === 'number');
-}
-
-function isDate(val) {
-  if (val instanceof Date) return true;
-  return typeof val.toDateString === 'function'
-    && typeof val.getDate === 'function'
-    && typeof val.setDate === 'function';
-}
-
-function isRegexp(val) {
-  if (val instanceof RegExp) return true;
-  return typeof val.flags === 'string'
-    && typeof val.ignoreCase === 'boolean'
-    && typeof val.multiline === 'boolean'
-    && typeof val.global === 'boolean';
-}
-
-function isGeneratorFn(name, val) {
-  return ctorName(name) === 'GeneratorFunction';
-}
-
-function isGeneratorObj(val) {
-  return typeof val.throw === 'function'
-    && typeof val.return === 'function'
-    && typeof val.next === 'function';
-}
-
-function isArguments(val) {
-  try {
-    if (typeof val.length === 'number' && typeof val.callee === 'function') {
-      return true;
-    }
-  } catch (err) {
-    if (err.message.indexOf('callee') !== -1) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/**
- * If you need to support Safari 5-7 (8-10 yr-old browser),
- * take a look at https://github.com/feross/is-buffer
- */
-
-function isBuffer(val) {
-  if (val.constructor && typeof val.constructor.isBuffer === 'function') {
-    return val.constructor.isBuffer(val);
-  }
-  return false;
-}
-
-
-/***/ }),
-/* 790 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-module.exports = read
-
-var readline = __webpack_require__(197)
-var Mute = __webpack_require__(401)
-
-function read (opts, cb) {
-  if (opts.num) {
-    throw new Error('read() no longer accepts a char number limit')
-  }
-
-  if (typeof opts.default !== 'undefined' &&
-      typeof opts.default !== 'string' &&
-      typeof opts.default !== 'number') {
-    throw new Error('default value must be string or number')
-  }
-
-  var input = opts.input || process.stdin
-  var output = opts.output || process.stdout
-  var prompt = (opts.prompt || '').trim() + ' '
-  var silent = opts.silent
-  var editDef = false
-  var timeout = opts.timeout
-
-  var def = opts.default || ''
-  if (def) {
-    if (silent) {
-      prompt += '(<default hidden>) '
-    } else if (opts.edit) {
-      editDef = true
-    } else {
-      prompt += '(' + def + ') '
-    }
-  }
-  var terminal = !!(opts.terminal || output.isTTY)
-
-  var m = new Mute({ replace: opts.replace, prompt: prompt })
-  m.pipe(output, {end: false})
-  output = m
-  var rlOpts = { input: input, output: output, terminal: terminal }
-
-  if (process.version.match(/^v0\.6/)) {
-    var rl = readline.createInterface(rlOpts.input, rlOpts.output)
-  } else {
-    var rl = readline.createInterface(rlOpts)
-  }
-
-
-  output.unmute()
-  rl.setPrompt(prompt)
-  rl.prompt()
-  if (silent) {
-    output.mute()
-  } else if (editDef) {
-    rl.line = def
-    rl.cursor = def.length
-    rl._refreshLine()
-  }
-
-  var called = false
-  rl.on('line', onLine)
-  rl.on('error', onError)
-
-  rl.on('SIGINT', function () {
-    rl.close()
-    onError(new Error('canceled'))
-  })
-
-  var timer
-  if (timeout) {
-    timer = setTimeout(function () {
-      onError(new Error('timed out'))
-    }, timeout)
-  }
-
-  function done () {
-    called = true
-    rl.close()
-
-    if (process.version.match(/^v0\.6/)) {
-      rl.input.removeAllListeners('data')
-      rl.input.removeAllListeners('keypress')
-      rl.input.pause()
-    }
-
-    clearTimeout(timer)
-    output.mute()
-    output.end()
-  }
-
-  function onError (er) {
-    if (called) return
-    done()
-    return cb(er)
-  }
-
-  function onLine (line) {
-    if (called) return
-    if (silent && terminal) {
-      output.unmute()
-      output.write('\r\n')
-    }
-    done()
-    // truncate the \n at the end.
-    line = line.replace(/\r?\n$/, '')
-    var isDefault = !!(editDef && line === def)
-    if (def && !line) {
-      isDefault = true
-      line = def
-    }
-    cb(null, line, isDefault)
-  }
-}
-
-
-/***/ }),
-/* 791 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(102).Duplex
-
-
-/***/ }),
-/* 792 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-// a passthrough stream.
-// basically just the most minimal sort of Transform stream.
-// Every written chunk gets output as-is.
-
-
-
-module.exports = PassThrough;
-
-var Transform = __webpack_require__(407);
-
-/*<replacement>*/
-var util = __webpack_require__(113);
-util.inherits = __webpack_require__(61);
-/*</replacement>*/
-
-util.inherits(PassThrough, Transform);
-
-function PassThrough(options) {
-  if (!(this instanceof PassThrough)) return new PassThrough(options);
-
-  Transform.call(this, options);
-}
-
-PassThrough.prototype._transform = function (chunk, encoding, cb) {
-  cb(null, chunk);
-};
-
-/***/ }),
-/* 793 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var Buffer = __webpack_require__(45).Buffer;
-var util = __webpack_require__(3);
-
-function copyBuffer(src, target, offset) {
-  src.copy(target, offset);
-}
-
-module.exports = function () {
-  function BufferList() {
-    _classCallCheck(this, BufferList);
-
-    this.head = null;
-    this.tail = null;
-    this.length = 0;
-  }
-
-  BufferList.prototype.push = function push(v) {
-    var entry = { data: v, next: null };
-    if (this.length > 0) this.tail.next = entry;else this.head = entry;
-    this.tail = entry;
-    ++this.length;
-  };
-
-  BufferList.prototype.unshift = function unshift(v) {
-    var entry = { data: v, next: this.head };
-    if (this.length === 0) this.tail = entry;
-    this.head = entry;
-    ++this.length;
-  };
-
-  BufferList.prototype.shift = function shift() {
-    if (this.length === 0) return;
-    var ret = this.head.data;
-    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
-    --this.length;
-    return ret;
-  };
-
-  BufferList.prototype.clear = function clear() {
-    this.head = this.tail = null;
-    this.length = 0;
-  };
-
-  BufferList.prototype.join = function join(s) {
-    if (this.length === 0) return '';
-    var p = this.head;
-    var ret = '' + p.data;
-    while (p = p.next) {
-      ret += s + p.data;
-    }return ret;
-  };
-
-  BufferList.prototype.concat = function concat(n) {
-    if (this.length === 0) return Buffer.alloc(0);
-    if (this.length === 1) return this.head.data;
-    var ret = Buffer.allocUnsafe(n >>> 0);
-    var p = this.head;
-    var i = 0;
-    while (p) {
-      copyBuffer(p.data, ret, i);
-      i += p.data.length;
-      p = p.next;
-    }
-    return ret;
-  };
-
-  return BufferList;
-}();
-
-if (util && util.inspect && util.inspect.custom) {
-  module.exports.prototype[util.inspect.custom] = function () {
-    var obj = util.inspect({ length: this.length });
-    return this.constructor.name + ' ' + obj;
-  };
-}
-
-/***/ }),
-/* 794 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(102).Transform
-
-
-/***/ }),
-/* 795 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * regex-cache <https://github.com/jonschlinkert/regex-cache>
- *
- * Copyright (c) 2015-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-
-
-var equal = __webpack_require__(734);
-var basic = {};
-var cache = {};
-
-/**
- * Expose `regexCache`
- */
-
-module.exports = regexCache;
-
-/**
- * Memoize the results of a call to the new RegExp constructor.
- *
- * @param  {Function} fn [description]
- * @param  {String} str [description]
- * @param  {Options} options [description]
- * @param  {Boolean} nocompare [description]
- * @return {RegExp}
- */
-
-function regexCache(fn, str, opts) {
-  var key = '_default_', regex, cached;
-
-  if (!str && !opts) {
-    if (typeof fn !== 'function') {
-      return fn;
-    }
-    return basic[key] || (basic[key] = fn(str));
-  }
-
-  var isString = typeof str === 'string';
-  if (isString) {
-    if (!opts) {
-      return basic[str] || (basic[str] = fn(str));
-    }
-    key = str;
-  } else {
-    opts = str;
-  }
-
-  cached = cache[key];
-  if (cached && equal(cached.opts, opts)) {
-    return cached.regex;
-  }
-
-  memo(key, opts, (regex = fn(str, opts)));
-  return regex;
-}
-
-function memo(key, opts, regex) {
-  cache[key] = {regex: regex, opts: opts};
-}
-
-/**
- * Expose `cache`
- */
-
-module.exports.cache = cache;
-module.exports.basic = basic;
-
-
-/***/ }),
-/* 796 */
-/***/ (function(module, exports) {
-
-var isWin = process.platform === 'win32';
-
-module.exports = function (str) {
-	var i = str.length - 1;
-	if (i < 2) {
-		return str;
-	}
-	while (isSeparator(str, i)) {
-		i--;
-	}
-	return str.substr(0, i + 1);
-};
-
-function isSeparator(str, i) {
-	var char = str[i];
-	return i > 0 && (char === '/' || (isWin && char === '\\'));
-}
-
-
-/***/ }),
-/* 797 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * repeat-string <https://github.com/jonschlinkert/repeat-string>
- *
- * Copyright (c) 2014-2015, Jon Schlinkert.
- * Licensed under the MIT License.
- */
-
-
-
-/**
- * Results cache
- */
-
-var res = '';
-var cache;
-
-/**
- * Expose `repeat`
- */
-
-module.exports = repeat;
-
-/**
- * Repeat the given `string` the specified `number`
- * of times.
- *
- * **Example:**
- *
- * ```js
- * var repeat = require('repeat-string');
- * repeat('A', 5);
- * //=> AAAAA
- * ```
- *
- * @param {String} `string` The string to repeat
- * @param {Number} `number` The number of times to repeat the string
- * @return {String} Repeated string
- * @api public
- */
-
-function repeat(str, num) {
-  if (typeof str !== 'string') {
-    throw new TypeError('expected a string');
-  }
-
-  // cover common, quick use cases
-  if (num === 1) return str;
-  if (num === 2) return str + str;
-
-  var max = str.length * num;
-  if (cache !== str || typeof cache === 'undefined') {
-    cache = str;
-    res = '';
-  } else if (res.length >= max) {
-    return res.substr(0, max);
-  }
-
-  while (max > res.length && num > 1) {
-    if (num & 1) {
-      res += str;
-    }
-
-    num >>= 1;
-    str += str;
-  }
-
-  res += str;
-  res = res.substr(0, max);
-  return res;
-}
-
-
-/***/ }),
-/* 798 */
-/***/ (function(module, exports) {
-
-module.exports = {"name":"request-capture-har","version":"1.2.2","description":"Wrapper for request module that saves all traffic as a HAR file, useful for auto mocking a client","main":"request-capture-har.js","scripts":{"test":"semistandard","travis":"npm test && node request-capture-har.js"},"repository":{"type":"git","url":"git+https://github.com/paulirish/node-request-capture-har.git"},"keywords":["http","request","har"],"author":"Lars Thorup <lars@zealake.com> (http://github.com/larsthorup)","license":"MIT","bugs":{"url":"https://github.com/paulirish/node-request-capture-har/issues"},"homepage":"https://github.com/paulirish/node-request-capture-har#readme","files":["request-capture-har.js"],"devDependencies":{"semistandard":"^8.0.0"}}
-
-/***/ }),
-/* 799 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var fs = __webpack_require__(5);
-var pkg = __webpack_require__(798);
-
-function buildHarHeaders (headers) {
-  return headers ? Object.keys(headers).map(function (key) {
-    return {
-      name: key,
-      // header values are required to be strings
-      value: headers[key].toString()
-    };
-  }) : [];
-}
-
-function appendPostData (entry, request) {
-  if (!request.body) return;
-
-  entry.request.postData = {
-    mimeType: 'application/octet-stream',
-    text: request.body
-  };
-}
-
-function toMs (num) {
-  return Math.round(num * 1000) / 1000;
-}
-
-function HarWrapper (requestModule) {
-  this.requestModule = requestModule;
-  this.clear();
-}
-
-HarWrapper.prototype.request = function (options) {
-  // include detailed timing data in response object
-  Object.assign(options, { time: true });
-  var self = this;
-  // make call to true request module
-  return this.requestModule(options, function (err, incomingMessage, response) {
-    // create new har entry with reponse timings
-    if (!err) {
-      self.entries.push(self.buildHarEntry(incomingMessage));
-    }
-
-    // fire any callback provided in options, as request has ignored it
-    //     https://github.com/request/request/blob/v2.75.0/index.js#L40
-    if (typeof options.callback === 'function') {
-      options.callback.apply(null, arguments);
-    }
-  });
-};
-
-HarWrapper.prototype.clear = function () {
-  this.entries = [];
-  this.earliestTime = new Date(2099, 1, 1);
-};
-
-HarWrapper.prototype.saveHar = function (fileName) {
-  var httpArchive = {
-    log: {
-      version: '1.2',
-      creator: {name: 'request-capture-har', version: pkg.version},
-      pages: [{
-        startedDateTime: new Date(this.earliestTime).toISOString(),
-        id: 'request-capture-har',
-        title: 'request-capture-har',
-        pageTimings: { }
-      }],
-      entries: this.entries
-    }
-  };
-  fs.writeFileSync(fileName, JSON.stringify(httpArchive, null, 2));
-};
-
-HarWrapper.prototype.buildTimings = function (entry, response) {
-  var startTs = response.request.startTime;
-  var endTs = startTs + response.elapsedTime;
-  var totalTime = endTs - startTs;
-
-  if (new Date(startTs) < this.earliestTime) {
-    this.earliestTime = new Date(startTs);
-  }
-  entry.startedDateTime = new Date(startTs).toISOString();
-  entry.time = totalTime;
-
-  // new timing data added in request 2.81.0
-  if (response.timingPhases) {
-    entry.timings = {
-      'blocked': toMs(response.timingPhases.wait),
-      'dns': toMs(response.timingPhases.dns),
-      'connect': toMs(response.timingPhases.tcp),
-      'send': 0,
-      'wait': toMs(response.timingPhases.firstByte),
-      'receive': toMs(response.timingPhases.download)
-    };
-    return;
-  }
-
-  var responseStartTs = response.request.response.responseStartTime;
-
-  var waitingTime = responseStartTs - startTs;
-  var receiveTime = endTs - responseStartTs;
-  entry.timings = {
-    send: 0,
-    wait: waitingTime,
-    receive: receiveTime
-  };
-};
-
-HarWrapper.prototype.buildHarEntry = function (response) {
-  var entry = {
-    request: {
-      method: response.request.method,
-      url: response.request.uri.href,
-      httpVersion: 'HTTP/' + response.httpVersion,
-      cookies: [],
-      headers: buildHarHeaders(response.request.headers),
-      queryString: [],
-      headersSize: -1,
-      bodySize: -1
-    },
-    response: {
-      status: response.statusCode,
-      statusText: response.statusMessage,
-      httpVersion: 'HTTP/' + response.httpVersion,
-      cookies: [],
-      headers: buildHarHeaders(response.headers),
-      _transferSize: response.body.length,
-      content: {
-        size: response.body.length,
-        mimeType: response.headers['content-type']
-      },
-      redirectURL: '',
-      headersSize: -1,
-      bodySize: -1
-    },
-    cache: {}
-  };
-  this.buildTimings(entry, response);
-  appendPostData(entry, response.request);
-  return entry;
-};
-
-module.exports = HarWrapper;
-
-
-/***/ }),
-/* 800 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-// Copyright 2010-2012 Mikeal Rogers
-//
-//    Licensed under the Apache License, Version 2.0 (the "License");
-//    you may not use this file except in compliance with the License.
-//    You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-//    Unless required by applicable law or agreed to in writing, software
-//    distributed under the License is distributed on an "AS IS" BASIS,
-//    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-//    See the License for the specific language governing permissions and
-//    limitations under the License.
-
-
-
-var extend = __webpack_require__(269)
-var cookies = __webpack_require__(412)
-var helpers = __webpack_require__(305)
-
-var paramsHaveRequestBody = helpers.paramsHaveRequestBody
-
-// organize params for patch, post, put, head, del
-function initParams (uri, options, callback) {
-  if (typeof options === 'function') {
-    callback = options
-  }
-
-  var params = {}
-  if (typeof options === 'object') {
-    extend(params, options, {uri: uri})
-  } else if (typeof uri === 'string') {
-    extend(params, {uri: uri})
-  } else {
-    extend(params, uri)
-  }
-
-  params.callback = callback || params.callback
-  return params
-}
-
-function request (uri, options, callback) {
-  if (typeof uri === 'undefined') {
-    throw new Error('undefined is not a valid uri or options object.')
-  }
-
-  var params = initParams(uri, options, callback)
-
-  if (params.method === 'HEAD' && paramsHaveRequestBody(params)) {
-    throw new Error('HTTP HEAD requests MUST NOT include a request body.')
-  }
-
-  return new request.Request(params)
-}
-
-function verbFunc (verb) {
-  var method = verb.toUpperCase()
-  return function (uri, options, callback) {
-    var params = initParams(uri, options, callback)
-    params.method = method
-    return request(params, params.callback)
-  }
-}
-
-// define like this to please codeintel/intellisense IDEs
-request.get = verbFunc('get')
-request.head = verbFunc('head')
-request.options = verbFunc('options')
-request.post = verbFunc('post')
-request.put = verbFunc('put')
-request.patch = verbFunc('patch')
-request.del = verbFunc('delete')
-request['delete'] = verbFunc('delete')
-
-request.jar = function (store) {
-  return cookies.jar(store)
-}
-
-request.cookie = function (str) {
-  return cookies.parse(str)
-}
-
-function wrapRequestMethod (method, options, requester, verb) {
-  return function (uri, opts, callback) {
-    var params = initParams(uri, opts, callback)
-
-    var target = {}
-    extend(true, target, options, params)
-
-    target.pool = params.pool || options.pool
-
-    if (verb) {
-      target.method = verb.toUpperCase()
-    }
-
-    if (typeof requester === 'function') {
-      method = requester
-    }
-
-    return method(target, target.callback)
-  }
-}
-
-request.defaults = function (options, requester) {
-  var self = this
-
-  options = options || {}
-
-  if (typeof options === 'function') {
-    requester = options
-    options = {}
-  }
-
-  var defaults = wrapRequestMethod(self, options, requester)
-
-  var verbs = ['get', 'head', 'post', 'put', 'patch', 'del', 'delete']
-  verbs.forEach(function (verb) {
-    defaults[verb] = wrapRequestMethod(self[verb], options, requester, verb)
-  })
-
-  defaults.cookie = wrapRequestMethod(self.cookie, options, requester)
-  defaults.jar = self.jar
-  defaults.defaults = self.defaults
-  return defaults
-}
-
-request.forever = function (agentOptions, optionsArg) {
-  var options = {}
-  if (optionsArg) {
-    extend(options, optionsArg)
-  }
-  if (agentOptions) {
-    options.agentOptions = agentOptions
-  }
-
-  options.forever = true
-  return request.defaults(options)
-}
-
-// Exports
-
-module.exports = request
-request.Request = __webpack_require__(813)
-request.initParams = initParams
-
-// Backwards compatibility for request.debug
-Object.defineProperty(request, 'debug', {
-  enumerable: true,
-  get: function () {
-    return request.Request.debug
-  },
-  set: function (debug) {
-    request.Request.debug = debug
-  }
-})
-
-
-/***/ }),
-/* 801 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var caseless = __webpack_require__(231)
-var uuid = __webpack_require__(119)
-var helpers = __webpack_require__(305)
-
-var md5 = helpers.md5
-var toBase64 = helpers.toBase64
-
-function Auth (request) {
-  // define all public properties here
-  this.request = request
-  this.hasAuth = false
-  this.sentAuth = false
-  this.bearerToken = null
-  this.user = null
-  this.pass = null
-}
-
-Auth.prototype.basic = function (user, pass, sendImmediately) {
-  var self = this
-  if (typeof user !== 'string' || (pass !== undefined && typeof pass !== 'string')) {
-    self.request.emit('error', new Error('auth() received invalid user or password'))
-  }
-  self.user = user
-  self.pass = pass
-  self.hasAuth = true
-  var header = user + ':' + (pass || '')
-  if (sendImmediately || typeof sendImmediately === 'undefined') {
-    var authHeader = 'Basic ' + toBase64(header)
-    self.sentAuth = true
-    return authHeader
-  }
-}
-
-Auth.prototype.bearer = function (bearer, sendImmediately) {
-  var self = this
-  self.bearerToken = bearer
-  self.hasAuth = true
-  if (sendImmediately || typeof sendImmediately === 'undefined') {
-    if (typeof bearer === 'function') {
-      bearer = bearer()
-    }
-    var authHeader = 'Bearer ' + (bearer || '')
-    self.sentAuth = true
-    return authHeader
-  }
-}
-
-Auth.prototype.digest = function (method, path, authHeader) {
-  // TODO: More complete implementation of RFC 2617.
-  //   - handle challenge.domain
-  //   - support qop="auth-int" only
-  //   - handle Authentication-Info (not necessarily?)
-  //   - check challenge.stale (not necessarily?)
-  //   - increase nc (not necessarily?)
-  // For reference:
-  // http://tools.ietf.org/html/rfc2617#section-3
-  // https://github.com/bagder/curl/blob/master/lib/http_digest.c
-
-  var self = this
-
-  var challenge = {}
-  var re = /([a-z0-9_-]+)=(?:"([^"]+)"|([a-z0-9_-]+))/gi
-  for (;;) {
-    var match = re.exec(authHeader)
-    if (!match) {
-      break
-    }
-    challenge[match[1]] = match[2] || match[3]
-  }
-
-  /**
-   * RFC 2617: handle both MD5 and MD5-sess algorithms.
-   *
-   * If the algorithm directive's value is "MD5" or unspecified, then HA1 is
-   *   HA1=MD5(username:realm:password)
-   * If the algorithm directive's value is "MD5-sess", then HA1 is
-   *   HA1=MD5(MD5(username:realm:password):nonce:cnonce)
-   */
-  var ha1Compute = function (algorithm, user, realm, pass, nonce, cnonce) {
-    var ha1 = md5(user + ':' + realm + ':' + pass)
-    if (algorithm && algorithm.toLowerCase() === 'md5-sess') {
-      return md5(ha1 + ':' + nonce + ':' + cnonce)
-    } else {
-      return ha1
-    }
-  }
-
-  var qop = /(^|,)\s*auth\s*($|,)/.test(challenge.qop) && 'auth'
-  var nc = qop && '00000001'
-  var cnonce = qop && uuid().replace(/-/g, '')
-  var ha1 = ha1Compute(challenge.algorithm, self.user, challenge.realm, self.pass, challenge.nonce, cnonce)
-  var ha2 = md5(method + ':' + path)
-  var digestResponse = qop
-    ? md5(ha1 + ':' + challenge.nonce + ':' + nc + ':' + cnonce + ':' + qop + ':' + ha2)
-    : md5(ha1 + ':' + challenge.nonce + ':' + ha2)
-  var authValues = {
-    username: self.user,
-    realm: challenge.realm,
-    nonce: challenge.nonce,
-    uri: path,
-    qop: qop,
-    response: digestResponse,
-    nc: nc,
-    cnonce: cnonce,
-    algorithm: challenge.algorithm,
-    opaque: challenge.opaque
-  }
-
-  authHeader = []
-  for (var k in authValues) {
-    if (authValues[k]) {
-      if (k === 'qop' || k === 'nc' || k === 'algorithm') {
-        authHeader.push(k + '=' + authValues[k])
-      } else {
-        authHeader.push(k + '="' + authValues[k] + '"')
-      }
-    }
-  }
-  authHeader = 'Digest ' + authHeader.join(', ')
-  self.sentAuth = true
-  return authHeader
-}
-
-Auth.prototype.onRequest = function (user, pass, sendImmediately, bearer) {
-  var self = this
-  var request = self.request
-
-  var authHeader
-  if (bearer === undefined && user === undefined) {
-    self.request.emit('error', new Error('no auth mechanism defined'))
-  } else if (bearer !== undefined) {
-    authHeader = self.bearer(bearer, sendImmediately)
-  } else {
-    authHeader = self.basic(user, pass, sendImmediately)
-  }
-  if (authHeader) {
-    request.setHeader('authorization', authHeader)
-  }
-}
-
-Auth.prototype.onResponse = function (response) {
-  var self = this
-  var request = self.request
-
-  if (!self.hasAuth || self.sentAuth) { return null }
-
-  var c = caseless(response.headers)
-
-  var authHeader = c.get('www-authenticate')
-  var authVerb = authHeader && authHeader.split(' ')[0].toLowerCase()
-  request.debug('reauth', authVerb)
-
-  switch (authVerb) {
-    case 'basic':
-      return self.basic(self.user, self.pass, true)
-
-    case 'bearer':
-      return self.bearer(self.bearerToken, true)
-
-    case 'digest':
-      return self.digest(request.method, request.path, authHeader)
-  }
-}
-
-exports.Auth = Auth
-
-
-/***/ }),
-/* 802 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-function formatHostname (hostname) {
-  // canonicalize the hostname, so that 'oogle.com' won't match 'google.com'
-  return hostname.replace(/^\.*/, '.').toLowerCase()
-}
-
-function parseNoProxyZone (zone) {
-  zone = zone.trim().toLowerCase()
-
-  var zoneParts = zone.split(':', 2)
-  var zoneHost = formatHostname(zoneParts[0])
-  var zonePort = zoneParts[1]
-  var hasPort = zone.indexOf(':') > -1
-
-  return {hostname: zoneHost, port: zonePort, hasPort: hasPort}
-}
-
-function uriInNoProxy (uri, noProxy) {
-  var port = uri.port || (uri.protocol === 'https:' ? '443' : '80')
-  var hostname = formatHostname(uri.hostname)
-  var noProxyList = noProxy.split(',')
-
-  // iterate through the noProxyList until it finds a match.
-  return noProxyList.map(parseNoProxyZone).some(function (noProxyZone) {
-    var isMatchedAt = hostname.indexOf(noProxyZone.hostname)
-    var hostnameMatched = (
-      isMatchedAt > -1 &&
-        (isMatchedAt === hostname.length - noProxyZone.hostname.length)
-    )
-
-    if (noProxyZone.hasPort) {
-      return (port === noProxyZone.port) && hostnameMatched
-    }
-
-    return hostnameMatched
-  })
-}
-
-function getProxyFromURI (uri) {
-  // Decide the proper request proxy to use based on the request URI object and the
-  // environmental variables (NO_PROXY, HTTP_PROXY, etc.)
-  // respect NO_PROXY environment variables (see: http://lynx.isc.org/current/breakout/lynx_help/keystrokes/environments.html)
-
-  var noProxy = process.env.NO_PROXY || process.env.no_proxy || ''
-
-  // if the noProxy is a wildcard then return null
-
-  if (noProxy === '*') {
-    return null
-  }
-
-  // if the noProxy is not empty and the uri is found return null
-
-  if (noProxy !== '' && uriInNoProxy(uri, noProxy)) {
-    return null
-  }
-
-  // Check for HTTP or HTTPS Proxy in environment Else default to null
-
-  if (uri.protocol === 'http:') {
-    return process.env.HTTP_PROXY ||
-      process.env.http_proxy || null
-  }
-
-  if (uri.protocol === 'https:') {
-    return process.env.HTTPS_PROXY ||
-      process.env.https_proxy ||
-      process.env.HTTP_PROXY ||
-      process.env.http_proxy || null
-  }
-
-  // if none of that works, return null
-  // (What uri protocol are you using then?)
-
-  return null
-}
-
-module.exports = getProxyFromURI
-
-
-/***/ }),
-/* 803 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var fs = __webpack_require__(5)
-var qs = __webpack_require__(196)
-var validate = __webpack_require__(677)
-var extend = __webpack_require__(269)
-
-function Har (request) {
-  this.request = request
-}
-
-Har.prototype.reducer = function (obj, pair) {
-  // new property ?
-  if (obj[pair.name] === undefined) {
-    obj[pair.name] = pair.value
-    return obj
-  }
-
-  // existing? convert to array
-  var arr = [
-    obj[pair.name],
-    pair.value
-  ]
-
-  obj[pair.name] = arr
-
-  return obj
-}
-
-Har.prototype.prep = function (data) {
-  // construct utility properties
-  data.queryObj = {}
-  data.headersObj = {}
-  data.postData.jsonObj = false
-  data.postData.paramsObj = false
-
-  // construct query objects
-  if (data.queryString && data.queryString.length) {
-    data.queryObj = data.queryString.reduce(this.reducer, {})
-  }
-
-  // construct headers objects
-  if (data.headers && data.headers.length) {
-    // loweCase header keys
-    data.headersObj = data.headers.reduceRight(function (headers, header) {
-      headers[header.name] = header.value
-      return headers
-    }, {})
-  }
-
-  // construct Cookie header
-  if (data.cookies && data.cookies.length) {
-    var cookies = data.cookies.map(function (cookie) {
-      return cookie.name + '=' + cookie.value
-    })
-
-    if (cookies.length) {
-      data.headersObj.cookie = cookies.join('; ')
-    }
-  }
-
-  // prep body
-  function some (arr) {
-    return arr.some(function (type) {
-      return data.postData.mimeType.indexOf(type) === 0
-    })
-  }
-
-  if (some([
-    'multipart/mixed',
-    'multipart/related',
-    'multipart/form-data',
-    'multipart/alternative'])) {
-    // reset values
-    data.postData.mimeType = 'multipart/form-data'
-  } else if (some([
-    'application/x-www-form-urlencoded'])) {
-    if (!data.postData.params) {
-      data.postData.text = ''
-    } else {
-      data.postData.paramsObj = data.postData.params.reduce(this.reducer, {})
-
-      // always overwrite
-      data.postData.text = qs.stringify(data.postData.paramsObj)
-    }
-  } else if (some([
-    'text/json',
-    'text/x-json',
-    'application/json',
-    'application/x-json'])) {
-    data.postData.mimeType = 'application/json'
-
-    if (data.postData.text) {
-      try {
-        data.postData.jsonObj = JSON.parse(data.postData.text)
-      } catch (e) {
-        this.request.debug(e)
-
-        // force back to text/plain
-        data.postData.mimeType = 'text/plain'
-      }
-    }
-  }
-
-  return data
-}
-
-Har.prototype.options = function (options) {
-  // skip if no har property defined
-  if (!options.har) {
-    return options
-  }
-
-  var har = {}
-  extend(har, options.har)
-
-  // only process the first entry
-  if (har.log && har.log.entries) {
-    har = har.log.entries[0]
-  }
-
-  // add optional properties to make validation successful
-  har.url = har.url || options.url || options.uri || options.baseUrl || '/'
-  har.httpVersion = har.httpVersion || 'HTTP/1.1'
-  har.queryString = har.queryString || []
-  har.headers = har.headers || []
-  har.cookies = har.cookies || []
-  har.postData = har.postData || {}
-  har.postData.mimeType = har.postData.mimeType || 'application/octet-stream'
-
-  har.bodySize = 0
-  har.headersSize = 0
-  har.postData.size = 0
-
-  if (!validate.request(har)) {
-    return options
-  }
-
-  // clean up and get some utility properties
-  var req = this.prep(har)
-
-  // construct new options
-  if (req.url) {
-    options.url = req.url
-  }
-
-  if (req.method) {
-    options.method = req.method
-  }
-
-  if (Object.keys(req.queryObj).length) {
-    options.qs = req.queryObj
-  }
-
-  if (Object.keys(req.headersObj).length) {
-    options.headers = req.headersObj
-  }
-
-  function test (type) {
-    return req.postData.mimeType.indexOf(type) === 0
-  }
-  if (test('application/x-www-form-urlencoded')) {
-    options.form = req.postData.paramsObj
-  } else if (test('application/json')) {
-    if (req.postData.jsonObj) {
-      options.body = req.postData.jsonObj
-      options.json = true
-    }
-  } else if (test('multipart/form-data')) {
-    options.formData = {}
-
-    req.postData.params.forEach(function (param) {
-      var attachment = {}
-
-      if (!param.fileName && !param.fileName && !param.contentType) {
-        options.formData[param.name] = param.value
-        return
-      }
-
-      // attempt to read from disk!
-      if (param.fileName && !param.value) {
-        attachment.value = fs.createReadStream(param.fileName)
-      } else if (param.value) {
-        attachment.value = param.value
-      }
-
-      if (param.fileName) {
-        attachment.options = {
-          filename: param.fileName,
-          contentType: param.contentType ? param.contentType : null
-        }
-      }
-
-      options.formData[param.name] = attachment
-    })
-  } else {
-    if (req.postData.text) {
-      options.body = req.postData.text
-    }
-  }
-
-  return options
-}
-
-exports.Har = Har
-
-
-/***/ }),
-/* 804 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var crypto = __webpack_require__(11)
-
-function randomString (size) {
-  var bits = (size + 1) * 6
-  var buffer = crypto.randomBytes(Math.ceil(bits / 8))
-  var string = buffer.toString('base64').replace(/\+/g, '-').replace(/\//g, '_').replace(/=/g, '')
-  return string.slice(0, size)
-}
-
-function calculatePayloadHash (payload, algorithm, contentType) {
-  var hash = crypto.createHash(algorithm)
-  hash.update('hawk.1.payload\n')
-  hash.update((contentType ? contentType.split(';')[0].trim().toLowerCase() : '') + '\n')
-  hash.update(payload || '')
-  hash.update('\n')
-  return hash.digest('base64')
-}
-
-exports.calculateMac = function (credentials, opts) {
-  var normalized = 'hawk.1.header\n' +
-    opts.ts + '\n' +
-    opts.nonce + '\n' +
-    (opts.method || '').toUpperCase() + '\n' +
-    opts.resource + '\n' +
-    opts.host.toLowerCase() + '\n' +
-    opts.port + '\n' +
-    (opts.hash || '') + '\n'
-
-  if (opts.ext) {
-    normalized = normalized + opts.ext.replace('\\', '\\\\').replace('\n', '\\n')
-  }
-
-  normalized = normalized + '\n'
-
-  if (opts.app) {
-    normalized = normalized + opts.app + '\n' + (opts.dlg || '') + '\n'
-  }
-
-  var hmac = crypto.createHmac(credentials.algorithm, credentials.key).update(normalized)
-  var digest = hmac.digest('base64')
-  return digest
-}
-
-exports.header = function (uri, method, opts) {
-  var timestamp = opts.timestamp || Math.floor((Date.now() + (opts.localtimeOffsetMsec || 0)) / 1000)
-  var credentials = opts.credentials
-  if (!credentials || !credentials.id || !credentials.key || !credentials.algorithm) {
-    return ''
-  }
-
-  if (['sha1', 'sha256'].indexOf(credentials.algorithm) === -1) {
-    return ''
-  }
-
-  var artifacts = {
-    ts: timestamp,
-    nonce: opts.nonce || randomString(6),
-    method: method,
-    resource: uri.pathname + (uri.search || ''),
-    host: uri.hostname,
-    port: uri.port || (uri.protocol === 'http:' ? 80 : 443),
-    hash: opts.hash,
-    ext: opts.ext,
-    app: opts.app,
-    dlg: opts.dlg
-  }
-
-  if (!artifacts.hash && (opts.payload || opts.payload === '')) {
-    artifacts.hash = calculatePayloadHash(opts.payload, credentials.algorithm, opts.contentType)
-  }
-
-  var mac = exports.calculateMac(credentials, artifacts)
-
-  var hasExt = artifacts.ext !== null && artifacts.ext !== undefined && artifacts.ext !== ''
-  var header = 'Hawk id="' + credentials.id +
-    '", ts="' + artifacts.ts +
-    '", nonce="' + artifacts.nonce +
-    (artifacts.hash ? '", hash="' + artifacts.hash : '') +
-    (hasExt ? '", ext="' + artifacts.ext.replace(/\\/g, '\\\\').replace(/"/g, '\\"') : '') +
-    '", mac="' + mac + '"'
-
-  if (artifacts.app) {
-    header = header + ', app="' + artifacts.app + (artifacts.dlg ? '", dlg="' + artifacts.dlg : '') + '"'
-  }
-
-  return header
-}
-
-
-/***/ }),
-/* 805 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var uuid = __webpack_require__(119)
-var CombinedStream = __webpack_require__(385)
-var isstream = __webpack_require__(399)
-var Buffer = __webpack_require__(45).Buffer
-
-function Multipart (request) {
-  this.request = request
-  this.boundary = uuid()
-  this.chunked = false
-  this.body = null
-}
-
-Multipart.prototype.isChunked = function (options) {
-  var self = this
-  var chunked = false
-  var parts = options.data || options
-
-  if (!parts.forEach) {
-    self.request.emit('error', new Error('Argument error, options.multipart.'))
-  }
-
-  if (options.chunked !== undefined) {
-    chunked = options.chunked
-  }
-
-  if (self.request.getHeader('transfer-encoding') === 'chunked') {
-    chunked = true
-  }
-
-  if (!chunked) {
-    parts.forEach(function (part) {
-      if (typeof part.body === 'undefined') {
-        self.request.emit('error', new Error('Body attribute missing in multipart.'))
-      }
-      if (isstream(part.body)) {
-        chunked = true
-      }
-    })
-  }
-
-  return chunked
-}
-
-Multipart.prototype.setHeaders = function (chunked) {
-  var self = this
-
-  if (chunked && !self.request.hasHeader('transfer-encoding')) {
-    self.request.setHeader('transfer-encoding', 'chunked')
-  }
-
-  var header = self.request.getHeader('content-type')
-
-  if (!header || header.indexOf('multipart') === -1) {
-    self.request.setHeader('content-type', 'multipart/related; boundary=' + self.boundary)
-  } else {
-    if (header.indexOf('boundary') !== -1) {
-      self.boundary = header.replace(/.*boundary=([^\s;]+).*/, '$1')
-    } else {
-      self.request.setHeader('content-type', header + '; boundary=' + self.boundary)
-    }
-  }
-}
-
-Multipart.prototype.build = function (parts, chunked) {
-  var self = this
-  var body = chunked ? new CombinedStream() : []
-
-  function add (part) {
-    if (typeof part === 'number') {
-      part = part.toString()
-    }
-    return chunked ? body.append(part) : body.push(Buffer.from(part))
-  }
-
-  if (self.request.preambleCRLF) {
-    add('\r\n')
-  }
-
-  parts.forEach(function (part) {
-    var preamble = '--' + self.boundary + '\r\n'
-    Object.keys(part).forEach(function (key) {
-      if (key === 'body') { return }
-      preamble += key + ': ' + part[key] + '\r\n'
-    })
-    preamble += '\r\n'
-    add(preamble)
-    add(part.body)
-    add('\r\n')
-  })
-  add('--' + self.boundary + '--')
-
-  if (self.request.postambleCRLF) {
-    add('\r\n')
-  }
-
-  return body
-}
-
-Multipart.prototype.onRequest = function (options) {
-  var self = this
-
-  var chunked = self.isChunked(options)
-  var parts = options.data || options
-
-  self.setHeaders(chunked)
-  self.chunked = chunked
-  self.body = self.build(parts, chunked)
-}
-
-exports.Multipart = Multipart
-
-
-/***/ }),
-/* 806 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var url = __webpack_require__(24)
-var qs = __webpack_require__(404)
-var caseless = __webpack_require__(231)
-var uuid = __webpack_require__(119)
-var oauth = __webpack_require__(768)
-var crypto = __webpack_require__(11)
-var Buffer = __webpack_require__(45).Buffer
-
-function OAuth (request) {
-  this.request = request
-  this.params = null
-}
-
-OAuth.prototype.buildParams = function (_oauth, uri, method, query, form, qsLib) {
-  var oa = {}
-  for (var i in _oauth) {
-    oa['oauth_' + i] = _oauth[i]
-  }
-  if (!oa.oauth_version) {
-    oa.oauth_version = '1.0'
-  }
-  if (!oa.oauth_timestamp) {
-    oa.oauth_timestamp = Math.floor(Date.now() / 1000).toString()
-  }
-  if (!oa.oauth_nonce) {
-    oa.oauth_nonce = uuid().replace(/-/g, '')
-  }
-  if (!oa.oauth_signature_method) {
-    oa.oauth_signature_method = 'HMAC-SHA1'
-  }
-
-  var consumer_secret_or_private_key = oa.oauth_consumer_secret || oa.oauth_private_key // eslint-disable-line camelcase
-  delete oa.oauth_consumer_secret
-  delete oa.oauth_private_key
-
-  var token_secret = oa.oauth_token_secret // eslint-disable-line camelcase
-  delete oa.oauth_token_secret
-
-  var realm = oa.oauth_realm
-  delete oa.oauth_realm
-  delete oa.oauth_transport_method
-
-  var baseurl = uri.protocol + '//' + uri.host + uri.pathname
-  var params = qsLib.parse([].concat(query, form, qsLib.stringify(oa)).join('&'))
-
-  oa.oauth_signature = oauth.sign(
-    oa.oauth_signature_method,
-    method,
-    baseurl,
-    params,
-    consumer_secret_or_private_key, // eslint-disable-line camelcase
-    token_secret // eslint-disable-line camelcase
-  )
-
-  if (realm) {
-    oa.realm = realm
-  }
-
-  return oa
-}
-
-OAuth.prototype.buildBodyHash = function (_oauth, body) {
-  if (['HMAC-SHA1', 'RSA-SHA1'].indexOf(_oauth.signature_method || 'HMAC-SHA1') < 0) {
-    this.request.emit('error', new Error('oauth: ' + _oauth.signature_method +
-      ' signature_method not supported with body_hash signing.'))
-  }
-
-  var shasum = crypto.createHash('sha1')
-  shasum.update(body || '')
-  var sha1 = shasum.digest('hex')
-
-  return Buffer.from(sha1, 'hex').toString('base64')
-}
-
-OAuth.prototype.concatParams = function (oa, sep, wrap) {
-  wrap = wrap || ''
-
-  var params = Object.keys(oa).filter(function (i) {
-    return i !== 'realm' && i !== 'oauth_signature'
-  }).sort()
-
-  if (oa.realm) {
-    params.splice(0, 0, 'realm')
-  }
-  params.push('oauth_signature')
-
-  return params.map(function (i) {
-    return i + '=' + wrap + oauth.rfc3986(oa[i]) + wrap
-  }).join(sep)
-}
-
-OAuth.prototype.onRequest = function (_oauth) {
-  var self = this
-  self.params = _oauth
-
-  var uri = self.request.uri || {}
-  var method = self.request.method || ''
-  var headers = caseless(self.request.headers)
-  var body = self.request.body || ''
-  var qsLib = self.request.qsLib || qs
-
-  var form
-  var query
-  var contentType = headers.get('content-type') || ''
-  var formContentType = 'application/x-www-form-urlencoded'
-  var transport = _oauth.transport_method || 'header'
-
-  if (contentType.slice(0, formContentType.length) === formContentType) {
-    contentType = formContentType
-    form = body
-  }
-  if (uri.query) {
-    query = uri.query
-  }
-  if (transport === 'body' && (method !== 'POST' || contentType !== formContentType)) {
-    self.request.emit('error', new Error('oauth: transport_method of body requires POST ' +
-      'and content-type ' + formContentType))
-  }
-
-  if (!form && typeof _oauth.body_hash === 'boolean') {
-    _oauth.body_hash = self.buildBodyHash(_oauth, self.request.body.toString())
-  }
-
-  var oa = self.buildParams(_oauth, uri, method, query, form, qsLib)
-
-  switch (transport) {
-    case 'header':
-      self.request.setHeader('Authorization', 'OAuth ' + self.concatParams(oa, ',', '"'))
-      break
-
-    case 'query':
-      var href = self.request.uri.href += (query ? '&' : '?') + self.concatParams(oa, '&')
-      self.request.uri = url.parse(href)
-      self.request.path = self.request.uri.path
-      break
-
-    case 'body':
-      self.request.body = (form ? form + '&' : '') + self.concatParams(oa, '&')
-      break
-
-    default:
-      self.request.emit('error', new Error('oauth: transport_method invalid'))
-  }
-}
-
-exports.OAuth = OAuth
-
-
-/***/ }),
-/* 807 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var qs = __webpack_require__(404)
-var querystring = __webpack_require__(196)
-
-function Querystring (request) {
-  this.request = request
-  this.lib = null
-  this.useQuerystring = null
-  this.parseOptions = null
-  this.stringifyOptions = null
-}
-
-Querystring.prototype.init = function (options) {
-  if (this.lib) { return }
-
-  this.useQuerystring = options.useQuerystring
-  this.lib = (this.useQuerystring ? querystring : qs)
-
-  this.parseOptions = options.qsParseOptions || {}
-  this.stringifyOptions = options.qsStringifyOptions || {}
-}
-
-Querystring.prototype.stringify = function (obj) {
-  return (this.useQuerystring)
-    ? this.rfc3986(this.lib.stringify(obj,
-      this.stringifyOptions.sep || null,
-      this.stringifyOptions.eq || null,
-      this.stringifyOptions))
-    : this.lib.stringify(obj, this.stringifyOptions)
-}
-
-Querystring.prototype.parse = function (str) {
-  return (this.useQuerystring)
-    ? this.lib.parse(str,
-      this.parseOptions.sep || null,
-      this.parseOptions.eq || null,
-      this.parseOptions)
-    : this.lib.parse(str, this.parseOptions)
-}
-
-Querystring.prototype.rfc3986 = function (str) {
-  return str.replace(/[!'()*]/g, function (c) {
-    return '%' + c.charCodeAt(0).toString(16).toUpperCase()
-  })
-}
-
-Querystring.prototype.unescape = querystring.unescape
-
-exports.Querystring = Querystring
-
-
-/***/ }),
-/* 808 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var url = __webpack_require__(24)
-var isUrl = /^https?:/
-
-function Redirect (request) {
-  this.request = request
-  this.followRedirect = true
-  this.followRedirects = true
-  this.followAllRedirects = false
-  this.followOriginalHttpMethod = false
-  this.allowRedirect = function () { return true }
-  this.maxRedirects = 10
-  this.redirects = []
-  this.redirectsFollowed = 0
-  this.removeRefererHeader = false
-}
-
-Redirect.prototype.onRequest = function (options) {
-  var self = this
-
-  if (options.maxRedirects !== undefined) {
-    self.maxRedirects = options.maxRedirects
-  }
-  if (typeof options.followRedirect === 'function') {
-    self.allowRedirect = options.followRedirect
-  }
-  if (options.followRedirect !== undefined) {
-    self.followRedirects = !!options.followRedirect
-  }
-  if (options.followAllRedirects !== undefined) {
-    self.followAllRedirects = options.followAllRedirects
-  }
-  if (self.followRedirects || self.followAllRedirects) {
-    self.redirects = self.redirects || []
-  }
-  if (options.removeRefererHeader !== undefined) {
-    self.removeRefererHeader = options.removeRefererHeader
-  }
-  if (options.followOriginalHttpMethod !== undefined) {
-    self.followOriginalHttpMethod = options.followOriginalHttpMethod
-  }
-}
-
-Redirect.prototype.redirectTo = function (response) {
-  var self = this
-  var request = self.request
-
-  var redirectTo = null
-  if (response.statusCode >= 300 && response.statusCode < 400 && response.caseless.has('location')) {
-    var location = response.caseless.get('location')
-    request.debug('redirect', location)
-
-    if (self.followAllRedirects) {
-      redirectTo = location
-    } else if (self.followRedirects) {
-      switch (request.method) {
-        case 'PATCH':
-        case 'PUT':
-        case 'POST':
-        case 'DELETE':
-          // Do not follow redirects
-          break
-        default:
-          redirectTo = location
-          break
-      }
-    }
-  } else if (response.statusCode === 401) {
-    var authHeader = request._auth.onResponse(response)
-    if (authHeader) {
-      request.setHeader('authorization', authHeader)
-      redirectTo = request.uri
-    }
-  }
-  return redirectTo
-}
-
-Redirect.prototype.onResponse = function (response) {
-  var self = this
-  var request = self.request
-
-  var redirectTo = self.redirectTo(response)
-  if (!redirectTo || !self.allowRedirect.call(request, response)) {
-    return false
-  }
-
-  request.debug('redirect to', redirectTo)
-
-  // ignore any potential response body.  it cannot possibly be useful
-  // to us at this point.
-  // response.resume should be defined, but check anyway before calling. Workaround for browserify.
-  if (response.resume) {
-    response.resume()
-  }
-
-  if (self.redirectsFollowed >= self.maxRedirects) {
-    request.emit('error', new Error('Exceeded maxRedirects. Probably stuck in a redirect loop ' + request.uri.href))
-    return false
-  }
-  self.redirectsFollowed += 1
-
-  if (!isUrl.test(redirectTo)) {
-    redirectTo = url.resolve(request.uri.href, redirectTo)
-  }
-
-  var uriPrev = request.uri
-  request.uri = url.parse(redirectTo)
-
-  // handle the case where we change protocol from https to http or vice versa
-  if (request.uri.protocol !== uriPrev.protocol) {
-    delete request.agent
-  }
-
-  self.redirects.push({ statusCode: response.statusCode, redirectUri: redirectTo })
-
-  if (self.followAllRedirects && request.method !== 'HEAD' &&
-    response.statusCode !== 401 && response.statusCode !== 307) {
-    request.method = self.followOriginalHttpMethod ? request.method : 'GET'
-  }
-  // request.method = 'GET' // Force all redirects to use GET || commented out fixes #215
-  delete request.src
-  delete request.req
-  delete request._started
-  if (response.statusCode !== 401 && response.statusCode !== 307) {
-    // Remove parameters from the previous response, unless this is the second request
-    // for a server that requires digest authentication.
-    delete request.body
-    delete request._form
-    if (request.headers) {
-      request.removeHeader('host')
-      request.removeHeader('content-type')
-      request.removeHeader('content-length')
-      if (request.uri.hostname !== request.originalHost.split(':')[0]) {
-        // Remove authorization if changing hostnames (but not if just
-        // changing ports or protocols).  This matches the behavior of curl:
-        // https://github.com/bagder/curl/blob/6beb0eee/lib/http.c#L710
-        request.removeHeader('authorization')
-      }
-    }
-  }
-
-  if (!self.removeRefererHeader) {
-    request.setHeader('referer', uriPrev.href)
-  }
-
-  request.emit('redirect')
-
-  request.init()
-
-  return true
-}
-
-exports.Redirect = Redirect
-
-
-/***/ }),
-/* 809 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var url = __webpack_require__(24)
-var tunnel = __webpack_require__(955)
-
-var defaultProxyHeaderWhiteList = [
-  'accept',
-  'accept-charset',
-  'accept-encoding',
-  'accept-language',
-  'accept-ranges',
-  'cache-control',
-  'content-encoding',
-  'content-language',
-  'content-location',
-  'content-md5',
-  'content-range',
-  'content-type',
-  'connection',
-  'date',
-  'expect',
-  'max-forwards',
-  'pragma',
-  'referer',
-  'te',
-  'user-agent',
-  'via'
-]
-
-var defaultProxyHeaderExclusiveList = [
-  'proxy-authorization'
-]
-
-function constructProxyHost (uriObject) {
-  var port = uriObject.port
-  var protocol = uriObject.protocol
-  var proxyHost = uriObject.hostname + ':'
-
-  if (port) {
-    proxyHost += port
-  } else if (protocol === 'https:') {
-    proxyHost += '443'
-  } else {
-    proxyHost += '80'
-  }
-
-  return proxyHost
-}
-
-function constructProxyHeaderWhiteList (headers, proxyHeaderWhiteList) {
-  var whiteList = proxyHeaderWhiteList
-    .reduce(function (set, header) {
-      set[header.toLowerCase()] = true
-      return set
-    }, {})
-
-  return Object.keys(headers)
-    .filter(function (header) {
-      return whiteList[header.toLowerCase()]
-    })
-    .reduce(function (set, header) {
-      set[header] = headers[header]
-      return set
-    }, {})
-}
-
-function constructTunnelOptions (request, proxyHeaders) {
-  var proxy = request.proxy
-
-  var tunnelOptions = {
-    proxy: {
-      host: proxy.hostname,
-      port: +proxy.port,
-      proxyAuth: proxy.auth,
-      headers: proxyHeaders
-    },
-    headers: request.headers,
-    ca: request.ca,
-    cert: request.cert,
-    key: request.key,
-    passphrase: request.passphrase,
-    pfx: request.pfx,
-    ciphers: request.ciphers,
-    rejectUnauthorized: request.rejectUnauthorized,
-    secureOptions: request.secureOptions,
-    secureProtocol: request.secureProtocol
-  }
-
-  return tunnelOptions
-}
-
-function constructTunnelFnName (uri, proxy) {
-  var uriProtocol = (uri.protocol === 'https:' ? 'https' : 'http')
-  var proxyProtocol = (proxy.protocol === 'https:' ? 'Https' : 'Http')
-  return [uriProtocol, proxyProtocol].join('Over')
-}
-
-function getTunnelFn (request) {
-  var uri = request.uri
-  var proxy = request.proxy
-  var tunnelFnName = constructTunnelFnName(uri, proxy)
-  return tunnel[tunnelFnName]
-}
-
-function Tunnel (request) {
-  this.request = request
-  this.proxyHeaderWhiteList = defaultProxyHeaderWhiteList
-  this.proxyHeaderExclusiveList = []
-  if (typeof request.tunnel !== 'undefined') {
-    this.tunnelOverride = request.tunnel
-  }
-}
-
-Tunnel.prototype.isEnabled = function () {
-  var self = this
-  var request = self.request
-    // Tunnel HTTPS by default. Allow the user to override this setting.
-
-  // If self.tunnelOverride is set (the user specified a value), use it.
-  if (typeof self.tunnelOverride !== 'undefined') {
-    return self.tunnelOverride
-  }
-
-  // If the destination is HTTPS, tunnel.
-  if (request.uri.protocol === 'https:') {
-    return true
-  }
-
-  // Otherwise, do not use tunnel.
-  return false
-}
-
-Tunnel.prototype.setup = function (options) {
-  var self = this
-  var request = self.request
-
-  options = options || {}
-
-  if (typeof request.proxy === 'string') {
-    request.proxy = url.parse(request.proxy)
-  }
-
-  if (!request.proxy || !request.tunnel) {
-    return false
-  }
-
-  // Setup Proxy Header Exclusive List and White List
-  if (options.proxyHeaderWhiteList) {
-    self.proxyHeaderWhiteList = options.proxyHeaderWhiteList
-  }
-  if (options.proxyHeaderExclusiveList) {
-    self.proxyHeaderExclusiveList = options.proxyHeaderExclusiveList
-  }
-
-  var proxyHeaderExclusiveList = self.proxyHeaderExclusiveList.concat(defaultProxyHeaderExclusiveList)
-  var proxyHeaderWhiteList = self.proxyHeaderWhiteList.concat(proxyHeaderExclusiveList)
-
-  // Setup Proxy Headers and Proxy Headers Host
-  // Only send the Proxy White Listed Header names
-  var proxyHeaders = constructProxyHeaderWhiteList(request.headers, proxyHeaderWhiteList)
-  proxyHeaders.host = constructProxyHost(request.uri)
-
-  proxyHeaderExclusiveList.forEach(request.removeHeader, request)
-
-  // Set Agent from Tunnel Data
-  var tunnelFn = getTunnelFn(request)
-  var tunnelOptions = constructTunnelOptions(request, proxyHeaders)
-  request.agent = tunnelFn(tunnelOptions)
-
-  return true
-}
-
-Tunnel.defaultProxyHeaderWhiteList = defaultProxyHeaderWhiteList
-Tunnel.defaultProxyHeaderExclusiveList = defaultProxyHeaderExclusiveList
-exports.Tunnel = Tunnel
-
-
-/***/ }),
-/* 810 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * Copyright (c) 2015, Salesforce.com, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of Salesforce.com nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-var net = __webpack_require__(164);
-var urlParse = __webpack_require__(24).parse;
-var pubsuffix = __webpack_require__(415);
-var Store = __webpack_require__(416).Store;
-var MemoryCookieStore = __webpack_require__(811).MemoryCookieStore;
-var pathMatch = __webpack_require__(413).pathMatch;
-var VERSION = __webpack_require__(812).version;
-
-var punycode;
-try {
-  punycode = __webpack_require__(332);
-} catch(e) {
-  console.warn("cookie: can't load punycode; won't use punycode for domain normalization");
-}
-
-// From RFC6265 S4.1.1
-// note that it excludes \x3B ";"
-var COOKIE_OCTETS = /^[\x21\x23-\x2B\x2D-\x3A\x3C-\x5B\x5D-\x7E]+$/;
-
-var CONTROL_CHARS = /[\x00-\x1F]/;
-
-// From Chromium // '\r', '\n' and '\0' should be treated as a terminator in
-// the "relaxed" mode, see:
-// https://github.com/ChromiumWebApps/chromium/blob/b3d3b4da8bb94c1b2e061600df106d590fda3620/net/cookies/parsed_cookie.cc#L60
-var TERMINATORS = ['\n', '\r', '\0'];
-
-// RFC6265 S4.1.1 defines path value as 'any CHAR except CTLs or ";"'
-// Note ';' is \x3B
-var PATH_VALUE = /[\x20-\x3A\x3C-\x7E]+/;
-
-// date-time parsing constants (RFC6265 S5.1.1)
-
-var DATE_DELIM = /[\x09\x20-\x2F\x3B-\x40\x5B-\x60\x7B-\x7E]/;
-
-var MONTH_TO_NUM = {
-  jan:0, feb:1, mar:2, apr:3, may:4, jun:5,
-  jul:6, aug:7, sep:8, oct:9, nov:10, dec:11
-};
-var NUM_TO_MONTH = [
-  'Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec'
-];
-var NUM_TO_DAY = [
-  'Sun','Mon','Tue','Wed','Thu','Fri','Sat'
-];
-
-var MAX_TIME = 2147483647000; // 31-bit max
-var MIN_TIME = 0; // 31-bit min
-
-/*
- * Parses a Natural number (i.e., non-negative integer) with either the
- *    <min>*<max>DIGIT ( non-digit *OCTET )
- * or
- *    <min>*<max>DIGIT
- * grammar (RFC6265 S5.1.1).
- *
- * The "trailingOK" boolean controls if the grammar accepts a
- * "( non-digit *OCTET )" trailer.
- */
-function parseDigits(token, minDigits, maxDigits, trailingOK) {
-  var count = 0;
-  while (count < token.length) {
-    var c = token.charCodeAt(count);
-    // "non-digit = %x00-2F / %x3A-FF"
-    if (c <= 0x2F || c >= 0x3A) {
-      break;
-    }
-    count++;
-  }
-
-  // constrain to a minimum and maximum number of digits.
-  if (count < minDigits || count > maxDigits) {
-    return null;
-  }
-
-  if (!trailingOK && count != token.length) {
-    return null;
-  }
-
-  return parseInt(token.substr(0,count), 10);
-}
-
-function parseTime(token) {
-  var parts = token.split(':');
-  var result = [0,0,0];
-
-  /* RF6256 S5.1.1:
-   *      time            = hms-time ( non-digit *OCTET )
-   *      hms-time        = time-field ":" time-field ":" time-field
-   *      time-field      = 1*2DIGIT
-   */
-
-  if (parts.length !== 3) {
-    return null;
-  }
-
-  for (var i = 0; i < 3; i++) {
-    // "time-field" must be strictly "1*2DIGIT", HOWEVER, "hms-time" can be
-    // followed by "( non-digit *OCTET )" so therefore the last time-field can
-    // have a trailer
-    var trailingOK = (i == 2);
-    var num = parseDigits(parts[i], 1, 2, trailingOK);
-    if (num === null) {
-      return null;
-    }
-    result[i] = num;
-  }
-
-  return result;
-}
-
-function parseMonth(token) {
-  token = String(token).substr(0,3).toLowerCase();
-  var num = MONTH_TO_NUM[token];
-  return num >= 0 ? num : null;
-}
-
-/*
- * RFC6265 S5.1.1 date parser (see RFC for full grammar)
- */
-function parseDate(str) {
-  if (!str) {
-    return;
-  }
-
-  /* RFC6265 S5.1.1:
-   * 2. Process each date-token sequentially in the order the date-tokens
-   * appear in the cookie-date
-   */
-  var tokens = str.split(DATE_DELIM);
-  if (!tokens) {
-    return;
-  }
-
-  var hour = null;
-  var minute = null;
-  var second = null;
-  var dayOfMonth = null;
-  var month = null;
-  var year = null;
-
-  for (var i=0; i<tokens.length; i++) {
-    var token = tokens[i].trim();
-    if (!token.length) {
-      continue;
-    }
-
-    var result;
-
-    /* 2.1. If the found-time flag is not set and the token matches the time
-     * production, set the found-time flag and set the hour- value,
-     * minute-value, and second-value to the numbers denoted by the digits in
-     * the date-token, respectively.  Skip the remaining sub-steps and continue
-     * to the next date-token.
-     */
-    if (second === null) {
-      result = parseTime(token);
-      if (result) {
-        hour = result[0];
-        minute = result[1];
-        second = result[2];
-        continue;
-      }
-    }
-
-    /* 2.2. If the found-day-of-month flag is not set and the date-token matches
-     * the day-of-month production, set the found-day-of- month flag and set
-     * the day-of-month-value to the number denoted by the date-token.  Skip
-     * the remaining sub-steps and continue to the next date-token.
-     */
-    if (dayOfMonth === null) {
-      // "day-of-month = 1*2DIGIT ( non-digit *OCTET )"
-      result = parseDigits(token, 1, 2, true);
-      if (result !== null) {
-        dayOfMonth = result;
-        continue;
-      }
-    }
-
-    /* 2.3. If the found-month flag is not set and the date-token matches the
-     * month production, set the found-month flag and set the month-value to
-     * the month denoted by the date-token.  Skip the remaining sub-steps and
-     * continue to the next date-token.
-     */
-    if (month === null) {
-      result = parseMonth(token);
-      if (result !== null) {
-        month = result;
-        continue;
-      }
-    }
-
-    /* 2.4. If the found-year flag is not set and the date-token matches the
-     * year production, set the found-year flag and set the year-value to the
-     * number denoted by the date-token.  Skip the remaining sub-steps and
-     * continue to the next date-token.
-     */
-    if (year === null) {
-      // "year = 2*4DIGIT ( non-digit *OCTET )"
-      result = parseDigits(token, 2, 4, true);
-      if (result !== null) {
-        year = result;
-        /* From S5.1.1:
-         * 3.  If the year-value is greater than or equal to 70 and less
-         * than or equal to 99, increment the year-value by 1900.
-         * 4.  If the year-value is greater than or equal to 0 and less
-         * than or equal to 69, increment the year-value by 2000.
-         */
-        if (year >= 70 && year <= 99) {
-          year += 1900;
-        } else if (year >= 0 && year <= 69) {
-          year += 2000;
-        }
-      }
-    }
-  }
-
-  /* RFC 6265 S5.1.1
-   * "5. Abort these steps and fail to parse the cookie-date if:
-   *     *  at least one of the found-day-of-month, found-month, found-
-   *        year, or found-time flags is not set,
-   *     *  the day-of-month-value is less than 1 or greater than 31,
-   *     *  the year-value is less than 1601,
-   *     *  the hour-value is greater than 23,
-   *     *  the minute-value is greater than 59, or
-   *     *  the second-value is greater than 59.
-   *     (Note that leap seconds cannot be represented in this syntax.)"
-   *
-   * So, in order as above:
-   */
-  if (
-    dayOfMonth === null || month === null || year === null || second === null ||
-    dayOfMonth < 1 || dayOfMonth > 31 ||
-    year < 1601 ||
-    hour > 23 ||
-    minute > 59 ||
-    second > 59
-  ) {
-    return;
-  }
-
-  return new Date(Date.UTC(year, month, dayOfMonth, hour, minute, second));
-}
-
-function formatDate(date) {
-  var d = date.getUTCDate(); d = d >= 10 ? d : '0'+d;
-  var h = date.getUTCHours(); h = h >= 10 ? h : '0'+h;
-  var m = date.getUTCMinutes(); m = m >= 10 ? m : '0'+m;
-  var s = date.getUTCSeconds(); s = s >= 10 ? s : '0'+s;
-  return NUM_TO_DAY[date.getUTCDay()] + ', ' +
-    d+' '+ NUM_TO_MONTH[date.getUTCMonth()] +' '+ date.getUTCFullYear() +' '+
-    h+':'+m+':'+s+' GMT';
-}
-
-// S5.1.2 Canonicalized Host Names
-function canonicalDomain(str) {
-  if (str == null) {
-    return null;
-  }
-  str = str.trim().replace(/^\./,''); // S4.1.2.3 & S5.2.3: ignore leading .
-
-  // convert to IDN if any non-ASCII characters
-  if (punycode && /[^\u0001-\u007f]/.test(str)) {
-    str = punycode.toASCII(str);
-  }
-
-  return str.toLowerCase();
-}
-
-// S5.1.3 Domain Matching
-function domainMatch(str, domStr, canonicalize) {
-  if (str == null || domStr == null) {
-    return null;
-  }
-  if (canonicalize !== false) {
-    str = canonicalDomain(str);
-    domStr = canonicalDomain(domStr);
-  }
-
-  /*
-   * "The domain string and the string are identical. (Note that both the
-   * domain string and the string will have been canonicalized to lower case at
-   * this point)"
-   */
-  if (str == domStr) {
-    return true;
-  }
-
-  /* "All of the following [three] conditions hold:" (order adjusted from the RFC) */
-
-  /* "* The string is a host name (i.e., not an IP address)." */
-  if (net.isIP(str)) {
-    return false;
-  }
-
-  /* "* The domain string is a suffix of the string" */
-  var idx = str.indexOf(domStr);
-  if (idx <= 0) {
-    return false; // it's a non-match (-1) or prefix (0)
-  }
-
-  // e.g "a.b.c".indexOf("b.c") === 2
-  // 5 === 3+2
-  if (str.length !== domStr.length + idx) { // it's not a suffix
-    return false;
-  }
-
-  /* "* The last character of the string that is not included in the domain
-  * string is a %x2E (".") character." */
-  if (str.substr(idx-1,1) !== '.') {
-    return false;
-  }
-
-  return true;
-}
-
-
-// RFC6265 S5.1.4 Paths and Path-Match
-
-/*
- * "The user agent MUST use an algorithm equivalent to the following algorithm
- * to compute the default-path of a cookie:"
- *
- * Assumption: the path (and not query part or absolute uri) is passed in.
- */
-function defaultPath(path) {
-  // "2. If the uri-path is empty or if the first character of the uri-path is not
-  // a %x2F ("/") character, output %x2F ("/") and skip the remaining steps.
-  if (!path || path.substr(0,1) !== "/") {
-    return "/";
-  }
-
-  // "3. If the uri-path contains no more than one %x2F ("/") character, output
-  // %x2F ("/") and skip the remaining step."
-  if (path === "/") {
-    return path;
-  }
-
-  var rightSlash = path.lastIndexOf("/");
-  if (rightSlash === 0) {
-    return "/";
-  }
-
-  // "4. Output the characters of the uri-path from the first character up to,
-  // but not including, the right-most %x2F ("/")."
-  return path.slice(0, rightSlash);
-}
-
-function trimTerminator(str) {
-  for (var t = 0; t < TERMINATORS.length; t++) {
-    var terminatorIdx = str.indexOf(TERMINATORS[t]);
-    if (terminatorIdx !== -1) {
-      str = str.substr(0,terminatorIdx);
-    }
-  }
-
-  return str;
-}
-
-function parseCookiePair(cookiePair, looseMode) {
-  cookiePair = trimTerminator(cookiePair);
-
-  var firstEq = cookiePair.indexOf('=');
-  if (looseMode) {
-    if (firstEq === 0) { // '=' is immediately at start
-      cookiePair = cookiePair.substr(1);
-      firstEq = cookiePair.indexOf('='); // might still need to split on '='
-    }
-  } else { // non-loose mode
-    if (firstEq <= 0) { // no '=' or is at start
-      return; // needs to have non-empty "cookie-name"
-    }
-  }
-
-  var cookieName, cookieValue;
-  if (firstEq <= 0) {
-    cookieName = "";
-    cookieValue = cookiePair.trim();
-  } else {
-    cookieName = cookiePair.substr(0, firstEq).trim();
-    cookieValue = cookiePair.substr(firstEq+1).trim();
-  }
-
-  if (CONTROL_CHARS.test(cookieName) || CONTROL_CHARS.test(cookieValue)) {
-    return;
-  }
-
-  var c = new Cookie();
-  c.key = cookieName;
-  c.value = cookieValue;
-  return c;
-}
-
-function parse(str, options) {
-  if (!options || typeof options !== 'object') {
-    options = {};
-  }
-  str = str.trim();
-
-  // We use a regex to parse the "name-value-pair" part of S5.2
-  var firstSemi = str.indexOf(';'); // S5.2 step 1
-  var cookiePair = (firstSemi === -1) ? str : str.substr(0, firstSemi);
-  var c = parseCookiePair(cookiePair, !!options.loose);
-  if (!c) {
-    return;
-  }
-
-  if (firstSemi === -1) {
-    return c;
-  }
-
-  // S5.2.3 "unparsed-attributes consist of the remainder of the set-cookie-string
-  // (including the %x3B (";") in question)." plus later on in the same section
-  // "discard the first ";" and trim".
-  var unparsed = str.slice(firstSemi + 1).trim();
-
-  // "If the unparsed-attributes string is empty, skip the rest of these
-  // steps."
-  if (unparsed.length === 0) {
-    return c;
-  }
-
-  /*
-   * S5.2 says that when looping over the items "[p]rocess the attribute-name
-   * and attribute-value according to the requirements in the following
-   * subsections" for every item.  Plus, for many of the individual attributes
-   * in S5.3 it says to use the "attribute-value of the last attribute in the
-   * cookie-attribute-list".  Therefore, in this implementation, we overwrite
-   * the previous value.
-   */
-  var cookie_avs = unparsed.split(';');
-  while (cookie_avs.length) {
-    var av = cookie_avs.shift().trim();
-    if (av.length === 0) { // happens if ";;" appears
-      continue;
-    }
-    var av_sep = av.indexOf('=');
-    var av_key, av_value;
-
-    if (av_sep === -1) {
-      av_key = av;
-      av_value = null;
-    } else {
-      av_key = av.substr(0,av_sep);
-      av_value = av.substr(av_sep+1);
-    }
-
-    av_key = av_key.trim().toLowerCase();
-
-    if (av_value) {
-      av_value = av_value.trim();
-    }
-
-    switch(av_key) {
-    case 'expires': // S5.2.1
-      if (av_value) {
-        var exp = parseDate(av_value);
-        // "If the attribute-value failed to parse as a cookie date, ignore the
-        // cookie-av."
-        if (exp) {
-          // over and underflow not realistically a concern: V8's getTime() seems to
-          // store something larger than a 32-bit time_t (even with 32-bit node)
-          c.expires = exp;
-        }
-      }
-      break;
-
-    case 'max-age': // S5.2.2
-      if (av_value) {
-        // "If the first character of the attribute-value is not a DIGIT or a "-"
-        // character ...[or]... If the remainder of attribute-value contains a
-        // non-DIGIT character, ignore the cookie-av."
-        if (/^-?[0-9]+$/.test(av_value)) {
-          var delta = parseInt(av_value, 10);
-          // "If delta-seconds is less than or equal to zero (0), let expiry-time
-          // be the earliest representable date and time."
-          c.setMaxAge(delta);
-        }
-      }
-      break;
-
-    case 'domain': // S5.2.3
-      // "If the attribute-value is empty, the behavior is undefined.  However,
-      // the user agent SHOULD ignore the cookie-av entirely."
-      if (av_value) {
-        // S5.2.3 "Let cookie-domain be the attribute-value without the leading %x2E
-        // (".") character."
-        var domain = av_value.trim().replace(/^\./, '');
-        if (domain) {
-          // "Convert the cookie-domain to lower case."
-          c.domain = domain.toLowerCase();
-        }
-      }
-      break;
-
-    case 'path': // S5.2.4
-      /*
-       * "If the attribute-value is empty or if the first character of the
-       * attribute-value is not %x2F ("/"):
-       *   Let cookie-path be the default-path.
-       * Otherwise:
-       *   Let cookie-path be the attribute-value."
-       *
-       * We'll represent the default-path as null since it depends on the
-       * context of the parsing.
-       */
-      c.path = av_value && av_value[0] === "/" ? av_value : null;
-      break;
-
-    case 'secure': // S5.2.5
-      /*
-       * "If the attribute-name case-insensitively matches the string "Secure",
-       * the user agent MUST append an attribute to the cookie-attribute-list
-       * with an attribute-name of Secure and an empty attribute-value."
-       */
-      c.secure = true;
-      break;
-
-    case 'httponly': // S5.2.6 -- effectively the same as 'secure'
-      c.httpOnly = true;
-      break;
-
-    default:
-      c.extensions = c.extensions || [];
-      c.extensions.push(av);
-      break;
-    }
-  }
-
-  return c;
-}
-
-// avoid the V8 deoptimization monster!
-function jsonParse(str) {
-  var obj;
-  try {
-    obj = JSON.parse(str);
-  } catch (e) {
-    return e;
-  }
-  return obj;
-}
-
-function fromJSON(str) {
-  if (!str) {
-    return null;
-  }
-
-  var obj;
-  if (typeof str === 'string') {
-    obj = jsonParse(str);
-    if (obj instanceof Error) {
-      return null;
-    }
-  } else {
-    // assume it's an Object
-    obj = str;
-  }
-
-  var c = new Cookie();
-  for (var i=0; i<Cookie.serializableProperties.length; i++) {
-    var prop = Cookie.serializableProperties[i];
-    if (obj[prop] === undefined ||
-        obj[prop] === Cookie.prototype[prop])
-    {
-      continue; // leave as prototype default
-    }
-
-    if (prop === 'expires' ||
-        prop === 'creation' ||
-        prop === 'lastAccessed')
-    {
-      if (obj[prop] === null) {
-        c[prop] = null;
-      } else {
-        c[prop] = obj[prop] == "Infinity" ?
-          "Infinity" : new Date(obj[prop]);
-      }
-    } else {
-      c[prop] = obj[prop];
-    }
-  }
-
-  return c;
-}
-
-/* Section 5.4 part 2:
- * "*  Cookies with longer paths are listed before cookies with
- *     shorter paths.
- *
- *  *  Among cookies that have equal-length path fields, cookies with
- *     earlier creation-times are listed before cookies with later
- *     creation-times."
- */
-
-function cookieCompare(a,b) {
-  var cmp = 0;
-
-  // descending for length: b CMP a
-  var aPathLen = a.path ? a.path.length : 0;
-  var bPathLen = b.path ? b.path.length : 0;
-  cmp = bPathLen - aPathLen;
-  if (cmp !== 0) {
-    return cmp;
-  }
-
-  // ascending for time: a CMP b
-  var aTime = a.creation ? a.creation.getTime() : MAX_TIME;
-  var bTime = b.creation ? b.creation.getTime() : MAX_TIME;
-  cmp = aTime - bTime;
-  if (cmp !== 0) {
-    return cmp;
-  }
-
-  // break ties for the same millisecond (precision of JavaScript's clock)
-  cmp = a.creationIndex - b.creationIndex;
-
-  return cmp;
-}
-
-// Gives the permutation of all possible pathMatch()es of a given path. The
-// array is in longest-to-shortest order.  Handy for indexing.
-function permutePath(path) {
-  if (path === '/') {
-    return ['/'];
-  }
-  if (path.lastIndexOf('/') === path.length-1) {
-    path = path.substr(0,path.length-1);
-  }
-  var permutations = [path];
-  while (path.length > 1) {
-    var lindex = path.lastIndexOf('/');
-    if (lindex === 0) {
-      break;
-    }
-    path = path.substr(0,lindex);
-    permutations.push(path);
-  }
-  permutations.push('/');
-  return permutations;
-}
-
-function getCookieContext(url) {
-  if (url instanceof Object) {
-    return url;
-  }
-  // NOTE: decodeURI will throw on malformed URIs (see GH-32).
-  // Therefore, we will just skip decoding for such URIs.
-  try {
-    url = decodeURI(url);
-  }
-  catch(err) {
-    // Silently swallow error
-  }
-
-  return urlParse(url);
-}
-
-function Cookie(options) {
-  options = options || {};
-
-  Object.keys(options).forEach(function(prop) {
-    if (Cookie.prototype.hasOwnProperty(prop) &&
-        Cookie.prototype[prop] !== options[prop] &&
-        prop.substr(0,1) !== '_')
-    {
-      this[prop] = options[prop];
-    }
-  }, this);
-
-  this.creation = this.creation || new Date();
-
-  // used to break creation ties in cookieCompare():
-  Object.defineProperty(this, 'creationIndex', {
-    configurable: false,
-    enumerable: false, // important for assert.deepEqual checks
-    writable: true,
-    value: ++Cookie.cookiesCreated
-  });
-}
-
-Cookie.cookiesCreated = 0; // incremented each time a cookie is created
-
-Cookie.parse = parse;
-Cookie.fromJSON = fromJSON;
-
-Cookie.prototype.key = "";
-Cookie.prototype.value = "";
-
-// the order in which the RFC has them:
-Cookie.prototype.expires = "Infinity"; // coerces to literal Infinity
-Cookie.prototype.maxAge = null; // takes precedence over expires for TTL
-Cookie.prototype.domain = null;
-Cookie.prototype.path = null;
-Cookie.prototype.secure = false;
-Cookie.prototype.httpOnly = false;
-Cookie.prototype.extensions = null;
-
-// set by the CookieJar:
-Cookie.prototype.hostOnly = null; // boolean when set
-Cookie.prototype.pathIsDefault = null; // boolean when set
-Cookie.prototype.creation = null; // Date when set; defaulted by Cookie.parse
-Cookie.prototype.lastAccessed = null; // Date when set
-Object.defineProperty(Cookie.prototype, 'creationIndex', {
-  configurable: true,
-  enumerable: false,
-  writable: true,
-  value: 0
-});
-
-Cookie.serializableProperties = Object.keys(Cookie.prototype)
-  .filter(function(prop) {
-    return !(
-      Cookie.prototype[prop] instanceof Function ||
-      prop === 'creationIndex' ||
-      prop.substr(0,1) === '_'
-    );
-  });
-
-Cookie.prototype.inspect = function inspect() {
-  var now = Date.now();
-  return 'Cookie="'+this.toString() +
-    '; hostOnly='+(this.hostOnly != null ? this.hostOnly : '?') +
-    '; aAge='+(this.lastAccessed ? (now-this.lastAccessed.getTime())+'ms' : '?') +
-    '; cAge='+(this.creation ? (now-this.creation.getTime())+'ms' : '?') +
-    '"';
-};
-
-Cookie.prototype.toJSON = function() {
-  var obj = {};
-
-  var props = Cookie.serializableProperties;
-  for (var i=0; i<props.length; i++) {
-    var prop = props[i];
-    if (this[prop] === Cookie.prototype[prop]) {
-      continue; // leave as prototype default
-    }
-
-    if (prop === 'expires' ||
-        prop === 'creation' ||
-        prop === 'lastAccessed')
-    {
-      if (this[prop] === null) {
-        obj[prop] = null;
-      } else {
-        obj[prop] = this[prop] == "Infinity" ? // intentionally not ===
-          "Infinity" : this[prop].toISOString();
-      }
-    } else if (prop === 'maxAge') {
-      if (this[prop] !== null) {
-        // again, intentionally not ===
-        obj[prop] = (this[prop] == Infinity || this[prop] == -Infinity) ?
-          this[prop].toString() : this[prop];
-      }
-    } else {
-      if (this[prop] !== Cookie.prototype[prop]) {
-        obj[prop] = this[prop];
-      }
-    }
-  }
-
-  return obj;
-};
-
-Cookie.prototype.clone = function() {
-  return fromJSON(this.toJSON());
-};
-
-Cookie.prototype.validate = function validate() {
-  if (!COOKIE_OCTETS.test(this.value)) {
-    return false;
-  }
-  if (this.expires != Infinity && !(this.expires instanceof Date) && !parseDate(this.expires)) {
-    return false;
-  }
-  if (this.maxAge != null && this.maxAge <= 0) {
-    return false; // "Max-Age=" non-zero-digit *DIGIT
-  }
-  if (this.path != null && !PATH_VALUE.test(this.path)) {
-    return false;
-  }
-
-  var cdomain = this.cdomain();
-  if (cdomain) {
-    if (cdomain.match(/\.$/)) {
-      return false; // S4.1.2.3 suggests that this is bad. domainMatch() tests confirm this
-    }
-    var suffix = pubsuffix.getPublicSuffix(cdomain);
-    if (suffix == null) { // it's a public suffix
-      return false;
-    }
-  }
-  return true;
-};
-
-Cookie.prototype.setExpires = function setExpires(exp) {
-  if (exp instanceof Date) {
-    this.expires = exp;
-  } else {
-    this.expires = parseDate(exp) || "Infinity";
-  }
-};
-
-Cookie.prototype.setMaxAge = function setMaxAge(age) {
-  if (age === Infinity || age === -Infinity) {
-    this.maxAge = age.toString(); // so JSON.stringify() works
-  } else {
-    this.maxAge = age;
-  }
-};
-
-// gives Cookie header format
-Cookie.prototype.cookieString = function cookieString() {
-  var val = this.value;
-  if (val == null) {
-    val = '';
-  }
-  if (this.key === '') {
-    return val;
-  }
-  return this.key+'='+val;
-};
-
-// gives Set-Cookie header format
-Cookie.prototype.toString = function toString() {
-  var str = this.cookieString();
-
-  if (this.expires != Infinity) {
-    if (this.expires instanceof Date) {
-      str += '; Expires='+formatDate(this.expires);
-    } else {
-      str += '; Expires='+this.expires;
-    }
-  }
-
-  if (this.maxAge != null && this.maxAge != Infinity) {
-    str += '; Max-Age='+this.maxAge;
-  }
-
-  if (this.domain && !this.hostOnly) {
-    str += '; Domain='+this.domain;
-  }
-  if (this.path) {
-    str += '; Path='+this.path;
-  }
-
-  if (this.secure) {
-    str += '; Secure';
-  }
-  if (this.httpOnly) {
-    str += '; HttpOnly';
-  }
-  if (this.extensions) {
-    this.extensions.forEach(function(ext) {
-      str += '; '+ext;
-    });
-  }
-
-  return str;
-};
-
-// TTL() partially replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
-// elsewhere)
-// S5.3 says to give the "latest representable date" for which we use Infinity
-// For "expired" we use 0
-Cookie.prototype.TTL = function TTL(now) {
-  /* RFC6265 S4.1.2.2 If a cookie has both the Max-Age and the Expires
-   * attribute, the Max-Age attribute has precedence and controls the
-   * expiration date of the cookie.
-   * (Concurs with S5.3 step 3)
-   */
-  if (this.maxAge != null) {
-    return this.maxAge<=0 ? 0 : this.maxAge*1000;
-  }
-
-  var expires = this.expires;
-  if (expires != Infinity) {
-    if (!(expires instanceof Date)) {
-      expires = parseDate(expires) || Infinity;
-    }
-
-    if (expires == Infinity) {
-      return Infinity;
-    }
-
-    return expires.getTime() - (now || Date.now());
-  }
-
-  return Infinity;
-};
-
-// expiryTime() replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
-// elsewhere)
-Cookie.prototype.expiryTime = function expiryTime(now) {
-  if (this.maxAge != null) {
-    var relativeTo = now || this.creation || new Date();
-    var age = (this.maxAge <= 0) ? -Infinity : this.maxAge*1000;
-    return relativeTo.getTime() + age;
-  }
-
-  if (this.expires == Infinity) {
-    return Infinity;
-  }
-  return this.expires.getTime();
-};
-
-// expiryDate() replaces the "expiry-time" parts of S5.3 step 3 (setCookie()
-// elsewhere), except it returns a Date
-Cookie.prototype.expiryDate = function expiryDate(now) {
-  var millisec = this.expiryTime(now);
-  if (millisec == Infinity) {
-    return new Date(MAX_TIME);
-  } else if (millisec == -Infinity) {
-    return new Date(MIN_TIME);
-  } else {
-    return new Date(millisec);
-  }
-};
-
-// This replaces the "persistent-flag" parts of S5.3 step 3
-Cookie.prototype.isPersistent = function isPersistent() {
-  return (this.maxAge != null || this.expires != Infinity);
-};
-
-// Mostly S5.1.2 and S5.2.3:
-Cookie.prototype.cdomain =
-Cookie.prototype.canonicalizedDomain = function canonicalizedDomain() {
-  if (this.domain == null) {
-    return null;
-  }
-  return canonicalDomain(this.domain);
-};
-
-function CookieJar(store, options) {
-  if (typeof options === "boolean") {
-    options = {rejectPublicSuffixes: options};
-  } else if (options == null) {
-    options = {};
-  }
-  if (options.rejectPublicSuffixes != null) {
-    this.rejectPublicSuffixes = options.rejectPublicSuffixes;
-  }
-  if (options.looseMode != null) {
-    this.enableLooseMode = options.looseMode;
-  }
-
-  if (!store) {
-    store = new MemoryCookieStore();
-  }
-  this.store = store;
-}
-CookieJar.prototype.store = null;
-CookieJar.prototype.rejectPublicSuffixes = true;
-CookieJar.prototype.enableLooseMode = false;
-var CAN_BE_SYNC = [];
-
-CAN_BE_SYNC.push('setCookie');
-CookieJar.prototype.setCookie = function(cookie, url, options, cb) {
-  var err;
-  var context = getCookieContext(url);
-  if (options instanceof Function) {
-    cb = options;
-    options = {};
-  }
-
-  var host = canonicalDomain(context.hostname);
-  var loose = this.enableLooseMode;
-  if (options.loose != null) {
-    loose = options.loose;
-  }
-
-  // S5.3 step 1
-  if (!(cookie instanceof Cookie)) {
-    cookie = Cookie.parse(cookie, { loose: loose });
-  }
-  if (!cookie) {
-    err = new Error("Cookie failed to parse");
-    return cb(options.ignoreError ? null : err);
-  }
-
-  // S5.3 step 2
-  var now = options.now || new Date(); // will assign later to save effort in the face of errors
-
-  // S5.3 step 3: NOOP; persistent-flag and expiry-time is handled by getCookie()
-
-  // S5.3 step 4: NOOP; domain is null by default
-
-  // S5.3 step 5: public suffixes
-  if (this.rejectPublicSuffixes && cookie.domain) {
-    var suffix = pubsuffix.getPublicSuffix(cookie.cdomain());
-    if (suffix == null) { // e.g. "com"
-      err = new Error("Cookie has domain set to a public suffix");
-      return cb(options.ignoreError ? null : err);
-    }
-  }
-
-  // S5.3 step 6:
-  if (cookie.domain) {
-    if (!domainMatch(host, cookie.cdomain(), false)) {
-      err = new Error("Cookie not in this host's domain. Cookie:"+cookie.cdomain()+" Request:"+host);
-      return cb(options.ignoreError ? null : err);
-    }
-
-    if (cookie.hostOnly == null) { // don't reset if already set
-      cookie.hostOnly = false;
-    }
-
-  } else {
-    cookie.hostOnly = true;
-    cookie.domain = host;
-  }
-
-  //S5.2.4 If the attribute-value is empty or if the first character of the
-  //attribute-value is not %x2F ("/"):
-  //Let cookie-path be the default-path.
-  if (!cookie.path || cookie.path[0] !== '/') {
-    cookie.path = defaultPath(context.pathname);
-    cookie.pathIsDefault = true;
-  }
-
-  // S5.3 step 8: NOOP; secure attribute
-  // S5.3 step 9: NOOP; httpOnly attribute
-
-  // S5.3 step 10
-  if (options.http === false && cookie.httpOnly) {
-    err = new Error("Cookie is HttpOnly and this isn't an HTTP API");
-    return cb(options.ignoreError ? null : err);
-  }
-
-  var store = this.store;
-
-  if (!store.updateCookie) {
-    store.updateCookie = function(oldCookie, newCookie, cb) {
-      this.putCookie(newCookie, cb);
-    };
-  }
-
-  function withCookie(err, oldCookie) {
-    if (err) {
-      return cb(err);
-    }
-
-    var next = function(err) {
-      if (err) {
-        return cb(err);
-      } else {
-        cb(null, cookie);
-      }
-    };
-
-    if (oldCookie) {
-      // S5.3 step 11 - "If the cookie store contains a cookie with the same name,
-      // domain, and path as the newly created cookie:"
-      if (options.http === false && oldCookie.httpOnly) { // step 11.2
-        err = new Error("old Cookie is HttpOnly and this isn't an HTTP API");
-        return cb(options.ignoreError ? null : err);
-      }
-      cookie.creation = oldCookie.creation; // step 11.3
-      cookie.creationIndex = oldCookie.creationIndex; // preserve tie-breaker
-      cookie.lastAccessed = now;
-      // Step 11.4 (delete cookie) is implied by just setting the new one:
-      store.updateCookie(oldCookie, cookie, next); // step 12
-
-    } else {
-      cookie.creation = cookie.lastAccessed = now;
-      store.putCookie(cookie, next); // step 12
-    }
-  }
-
-  store.findCookie(cookie.domain, cookie.path, cookie.key, withCookie);
-};
-
-// RFC6365 S5.4
-CAN_BE_SYNC.push('getCookies');
-CookieJar.prototype.getCookies = function(url, options, cb) {
-  var context = getCookieContext(url);
-  if (options instanceof Function) {
-    cb = options;
-    options = {};
-  }
-
-  var host = canonicalDomain(context.hostname);
-  var path = context.pathname || '/';
-
-  var secure = options.secure;
-  if (secure == null && context.protocol &&
-      (context.protocol == 'https:' || context.protocol == 'wss:'))
-  {
-    secure = true;
-  }
-
-  var http = options.http;
-  if (http == null) {
-    http = true;
-  }
-
-  var now = options.now || Date.now();
-  var expireCheck = options.expire !== false;
-  var allPaths = !!options.allPaths;
-  var store = this.store;
-
-  function matchingCookie(c) {
-    // "Either:
-    //   The cookie's host-only-flag is true and the canonicalized
-    //   request-host is identical to the cookie's domain.
-    // Or:
-    //   The cookie's host-only-flag is false and the canonicalized
-    //   request-host domain-matches the cookie's domain."
-    if (c.hostOnly) {
-      if (c.domain != host) {
-        return false;
-      }
-    } else {
-      if (!domainMatch(host, c.domain, false)) {
-        return false;
-      }
-    }
-
-    // "The request-uri's path path-matches the cookie's path."
-    if (!allPaths && !pathMatch(path, c.path)) {
-      return false;
-    }
-
-    // "If the cookie's secure-only-flag is true, then the request-uri's
-    // scheme must denote a "secure" protocol"
-    if (c.secure && !secure) {
-      return false;
-    }
-
-    // "If the cookie's http-only-flag is true, then exclude the cookie if the
-    // cookie-string is being generated for a "non-HTTP" API"
-    if (c.httpOnly && !http) {
-      return false;
-    }
-
-    // deferred from S5.3
-    // non-RFC: allow retention of expired cookies by choice
-    if (expireCheck && c.expiryTime() <= now) {
-      store.removeCookie(c.domain, c.path, c.key, function(){}); // result ignored
-      return false;
-    }
-
-    return true;
-  }
-
-  store.findCookies(host, allPaths ? null : path, function(err,cookies) {
-    if (err) {
-      return cb(err);
-    }
-
-    cookies = cookies.filter(matchingCookie);
-
-    // sorting of S5.4 part 2
-    if (options.sort !== false) {
-      cookies = cookies.sort(cookieCompare);
-    }
-
-    // S5.4 part 3
-    var now = new Date();
-    cookies.forEach(function(c) {
-      c.lastAccessed = now;
-    });
-    // TODO persist lastAccessed
-
-    cb(null,cookies);
-  });
-};
-
-CAN_BE_SYNC.push('getCookieString');
-CookieJar.prototype.getCookieString = function(/*..., cb*/) {
-  var args = Array.prototype.slice.call(arguments,0);
-  var cb = args.pop();
-  var next = function(err,cookies) {
-    if (err) {
-      cb(err);
-    } else {
-      cb(null, cookies
-        .sort(cookieCompare)
-        .map(function(c){
-          return c.cookieString();
-        })
-        .join('; '));
-    }
-  };
-  args.push(next);
-  this.getCookies.apply(this,args);
-};
-
-CAN_BE_SYNC.push('getSetCookieStrings');
-CookieJar.prototype.getSetCookieStrings = function(/*..., cb*/) {
-  var args = Array.prototype.slice.call(arguments,0);
-  var cb = args.pop();
-  var next = function(err,cookies) {
-    if (err) {
-      cb(err);
-    } else {
-      cb(null, cookies.map(function(c){
-        return c.toString();
-      }));
-    }
-  };
-  args.push(next);
-  this.getCookies.apply(this,args);
-};
-
-CAN_BE_SYNC.push('serialize');
-CookieJar.prototype.serialize = function(cb) {
-  var type = this.store.constructor.name;
-  if (type === 'Object') {
-    type = null;
-  }
-
-  // update README.md "Serialization Format" if you change this, please!
-  var serialized = {
-    // The version of tough-cookie that serialized this jar. Generally a good
-    // practice since future versions can make data import decisions based on
-    // known past behavior. When/if this matters, use `semver`.
-    version: 'tough-cookie@'+VERSION,
-
-    // add the store type, to make humans happy:
-    storeType: type,
-
-    // CookieJar configuration:
-    rejectPublicSuffixes: !!this.rejectPublicSuffixes,
-
-    // this gets filled from getAllCookies:
-    cookies: []
-  };
-
-  if (!(this.store.getAllCookies &&
-        typeof this.store.getAllCookies === 'function'))
-  {
-    return cb(new Error('store does not support getAllCookies and cannot be serialized'));
-  }
-
-  this.store.getAllCookies(function(err,cookies) {
-    if (err) {
-      return cb(err);
-    }
-
-    serialized.cookies = cookies.map(function(cookie) {
-      // convert to serialized 'raw' cookies
-      cookie = (cookie instanceof Cookie) ? cookie.toJSON() : cookie;
-
-      // Remove the index so new ones get assigned during deserialization
-      delete cookie.creationIndex;
-
-      return cookie;
-    });
-
-    return cb(null, serialized);
-  });
-};
-
-// well-known name that JSON.stringify calls
-CookieJar.prototype.toJSON = function() {
-  return this.serializeSync();
-};
-
-// use the class method CookieJar.deserialize instead of calling this directly
-CAN_BE_SYNC.push('_importCookies');
-CookieJar.prototype._importCookies = function(serialized, cb) {
-  var jar = this;
-  var cookies = serialized.cookies;
-  if (!cookies || !Array.isArray(cookies)) {
-    return cb(new Error('serialized jar has no cookies array'));
-  }
-  cookies = cookies.slice(); // do not modify the original
-
-  function putNext(err) {
-    if (err) {
-      return cb(err);
-    }
-
-    if (!cookies.length) {
-      return cb(err, jar);
-    }
-
-    var cookie;
-    try {
-      cookie = fromJSON(cookies.shift());
-    } catch (e) {
-      return cb(e);
-    }
-
-    if (cookie === null) {
-      return putNext(null); // skip this cookie
-    }
-
-    jar.store.putCookie(cookie, putNext);
-  }
-
-  putNext();
-};
-
-CookieJar.deserialize = function(strOrObj, store, cb) {
-  if (arguments.length !== 3) {
-    // store is optional
-    cb = store;
-    store = null;
-  }
-
-  var serialized;
-  if (typeof strOrObj === 'string') {
-    serialized = jsonParse(strOrObj);
-    if (serialized instanceof Error) {
-      return cb(serialized);
-    }
-  } else {
-    serialized = strOrObj;
-  }
-
-  var jar = new CookieJar(store, serialized.rejectPublicSuffixes);
-  jar._importCookies(serialized, function(err) {
-    if (err) {
-      return cb(err);
-    }
-    cb(null, jar);
-  });
-};
-
-CookieJar.deserializeSync = function(strOrObj, store) {
-  var serialized = typeof strOrObj === 'string' ?
-    JSON.parse(strOrObj) : strOrObj;
-  var jar = new CookieJar(store, serialized.rejectPublicSuffixes);
-
-  // catch this mistake early:
-  if (!jar.store.synchronous) {
-    throw new Error('CookieJar store is not synchronous; use async API instead.');
-  }
-
-  jar._importCookiesSync(serialized);
-  return jar;
-};
-CookieJar.fromJSON = CookieJar.deserializeSync;
-
-CAN_BE_SYNC.push('clone');
-CookieJar.prototype.clone = function(newStore, cb) {
-  if (arguments.length === 1) {
-    cb = newStore;
-    newStore = null;
-  }
-
-  this.serialize(function(err,serialized) {
-    if (err) {
-      return cb(err);
-    }
-    CookieJar.deserialize(newStore, serialized, cb);
-  });
-};
-
-// Use a closure to provide a true imperative API for synchronous stores.
-function syncWrap(method) {
-  return function() {
-    if (!this.store.synchronous) {
-      throw new Error('CookieJar store is not synchronous; use async API instead.');
-    }
-
-    var args = Array.prototype.slice.call(arguments);
-    var syncErr, syncResult;
-    args.push(function syncCb(err, result) {
-      syncErr = err;
-      syncResult = result;
-    });
-    this[method].apply(this, args);
-
-    if (syncErr) {
-      throw syncErr;
-    }
-    return syncResult;
-  };
-}
-
-// wrap all declared CAN_BE_SYNC methods in the sync wrapper
-CAN_BE_SYNC.forEach(function(method) {
-  CookieJar.prototype[method+'Sync'] = syncWrap(method);
-});
-
-module.exports = {
-  CookieJar: CookieJar,
-  Cookie: Cookie,
-  Store: Store,
-  MemoryCookieStore: MemoryCookieStore,
-  parseDate: parseDate,
-  formatDate: formatDate,
-  parse: parse,
-  fromJSON: fromJSON,
-  domainMatch: domainMatch,
-  defaultPath: defaultPath,
-  pathMatch: pathMatch,
-  getPublicSuffix: pubsuffix.getPublicSuffix,
-  cookieCompare: cookieCompare,
-  permuteDomain: __webpack_require__(414).permuteDomain,
-  permutePath: permutePath,
-  canonicalDomain: canonicalDomain
-};
-
-
-/***/ }),
-/* 811 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/*!
- * Copyright (c) 2015, Salesforce.com, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. Neither the name of Salesforce.com nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-var Store = __webpack_require__(416).Store;
-var permuteDomain = __webpack_require__(414).permuteDomain;
-var pathMatch = __webpack_require__(413).pathMatch;
-var util = __webpack_require__(3);
-
-function MemoryCookieStore() {
-  Store.call(this);
-  this.idx = {};
-}
-util.inherits(MemoryCookieStore, Store);
-exports.MemoryCookieStore = MemoryCookieStore;
-MemoryCookieStore.prototype.idx = null;
-
-// Since it's just a struct in RAM, this Store is synchronous
-MemoryCookieStore.prototype.synchronous = true;
-
-// force a default depth:
-MemoryCookieStore.prototype.inspect = function() {
-  return "{ idx: "+util.inspect(this.idx, false, 2)+' }';
-};
-
-MemoryCookieStore.prototype.findCookie = function(domain, path, key, cb) {
-  if (!this.idx[domain]) {
-    return cb(null,undefined);
-  }
-  if (!this.idx[domain][path]) {
-    return cb(null,undefined);
-  }
-  return cb(null,this.idx[domain][path][key]||null);
-};
-
-MemoryCookieStore.prototype.findCookies = function(domain, path, cb) {
-  var results = [];
-  if (!domain) {
-    return cb(null,[]);
-  }
-
-  var pathMatcher;
-  if (!path) {
-    // null means "all paths"
-    pathMatcher = function matchAll(domainIndex) {
-      for (var curPath in domainIndex) {
-        var pathIndex = domainIndex[curPath];
-        for (var key in pathIndex) {
-          results.push(pathIndex[key]);
-        }
-      }
-    };
-
-  } else {
-    pathMatcher = function matchRFC(domainIndex) {
-       //NOTE: we should use path-match algorithm from S5.1.4 here
-       //(see : https://github.com/ChromiumWebApps/chromium/blob/b3d3b4da8bb94c1b2e061600df106d590fda3620/net/cookies/canonical_cookie.cc#L299)
-       Object.keys(domainIndex).forEach(function (cookiePath) {
-         if (pathMatch(path, cookiePath)) {
-           var pathIndex = domainIndex[cookiePath];
-
-           for (var key in pathIndex) {
-             results.push(pathIndex[key]);
-           }
-         }
-       });
-     };
-  }
-
-  var domains = permuteDomain(domain) || [domain];
-  var idx = this.idx;
-  domains.forEach(function(curDomain) {
-    var domainIndex = idx[curDomain];
-    if (!domainIndex) {
-      return;
-    }
-    pathMatcher(domainIndex);
-  });
-
-  cb(null,results);
-};
-
-MemoryCookieStore.prototype.putCookie = function(cookie, cb) {
-  if (!this.idx[cookie.domain]) {
-    this.idx[cookie.domain] = {};
-  }
-  if (!this.idx[cookie.domain][cookie.path]) {
-    this.idx[cookie.domain][cookie.path] = {};
-  }
-  this.idx[cookie.domain][cookie.path][cookie.key] = cookie;
-  cb(null);
-};
-
-MemoryCookieStore.prototype.updateCookie = function(oldCookie, newCookie, cb) {
-  // updateCookie() may avoid updating cookies that are identical.  For example,
-  // lastAccessed may not be important to some stores and an equality
-  // comparison could exclude that field.
-  this.putCookie(newCookie,cb);
-};
-
-MemoryCookieStore.prototype.removeCookie = function(domain, path, key, cb) {
-  if (this.idx[domain] && this.idx[domain][path] && this.idx[domain][path][key]) {
-    delete this.idx[domain][path][key];
-  }
-  cb(null);
-};
-
-MemoryCookieStore.prototype.removeCookies = function(domain, path, cb) {
-  if (this.idx[domain]) {
-    if (path) {
-      delete this.idx[domain][path];
-    } else {
-      delete this.idx[domain];
-    }
-  }
-  return cb(null);
-};
-
-MemoryCookieStore.prototype.getAllCookies = function(cb) {
-  var cookies = [];
-  var idx = this.idx;
-
-  var domains = Object.keys(idx);
-  domains.forEach(function(domain) {
-    var paths = Object.keys(idx[domain]);
-    paths.forEach(function(path) {
-      var keys = Object.keys(idx[domain][path]);
-      keys.forEach(function(key) {
-        if (key !== null) {
-          cookies.push(idx[domain][path][key]);
-        }
-      });
-    });
-  });
-
-  // Sort by creationIndex so deserializing retains the creation order.
-  // When implementing your own store, this SHOULD retain the order too
-  cookies.sort(function(a,b) {
-    return (a.creationIndex||0) - (b.creationIndex||0);
-  });
-
-  cb(null, cookies);
-};
-
-
-/***/ }),
-/* 812 */
-/***/ (function(module, exports) {
-
-module.exports = {"author":{"name":"Jeremy Stashewsky","email":"jstashewsky@salesforce.com","website":"https://github.com/stash"},"contributors":[{"name":"Alexander Savin","website":"https://github.com/apsavin"},{"name":"Ian Livingstone","website":"https://github.com/ianlivingstone"},{"name":"Ivan Nikulin","website":"https://github.com/inikulin"},{"name":"Lalit Kapoor","website":"https://github.com/lalitkapoor"},{"name":"Sam Thompson","website":"https://github.com/sambthompson"},{"name":"Sebastian Mayr","website":"https://github.com/Sebmaster"}],"license":"BSD-3-Clause","name":"tough-cookie","description":"RFC6265 Cookies and Cookie Jar for node.js","keywords":["HTTP","cookie","cookies","set-cookie","cookiejar","jar","RFC6265","RFC2965"],"version":"2.3.4","homepage":"https://github.com/salesforce/tough-cookie","repository":{"type":"git","url":"git://github.com/salesforce/tough-cookie.git"},"bugs":{"url":"https://github.com/salesforce/tough-cookie/issues"},"main":"./lib/cookie","files":["lib"],"scripts":{"suffixup":"curl -o public_suffix_list.dat https://publicsuffix.org/list/public_suffix_list.dat && ./generate-pubsuffix.js","test":"vows test/*_test.js"},"engines":{"node":">=0.8"},"devDependencies":{"async":"^1.4.2","string.prototype.repeat":"^0.2.0","vows":"^0.8.1"},"dependencies":{"punycode":"^1.4.1"}}
-
-/***/ }),
-/* 813 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var http = __webpack_require__(87)
-var https = __webpack_require__(195)
-var url = __webpack_require__(24)
-var util = __webpack_require__(3)
-var stream = __webpack_require__(23)
-var zlib = __webpack_require__(198)
-var aws2 = __webpack_require__(521)
-var aws4 = __webpack_require__(522)
-var httpSignature = __webpack_require__(680)
-var mime = __webpack_require__(400)
-var caseless = __webpack_require__(231)
-var ForeverAgent = __webpack_require__(648)
-var FormData = __webpack_require__(649)
-var extend = __webpack_require__(269)
-var isstream = __webpack_require__(399)
-var isTypedArray = __webpack_require__(742).strict
-var helpers = __webpack_require__(305)
-var cookies = __webpack_require__(412)
-var getProxyFromURI = __webpack_require__(802)
-var Querystring = __webpack_require__(807).Querystring
-var Har = __webpack_require__(803).Har
-var Auth = __webpack_require__(801).Auth
-var OAuth = __webpack_require__(806).OAuth
-var hawk = __webpack_require__(804)
-var Multipart = __webpack_require__(805).Multipart
-var Redirect = __webpack_require__(808).Redirect
-var Tunnel = __webpack_require__(809).Tunnel
-var now = __webpack_require__(776)
-var Buffer = __webpack_require__(45).Buffer
-
-var safeStringify = helpers.safeStringify
-var isReadStream = helpers.isReadStream
-var toBase64 = helpers.toBase64
-var defer = helpers.defer
-var copy = helpers.copy
-var version = helpers.version
-var globalCookieJar = cookies.jar()
-
-var globalPool = {}
-
-function filterForNonReserved (reserved, options) {
-  // Filter out properties that are not reserved.
-  // Reserved values are passed in at call site.
-
-  var object = {}
-  for (var i in options) {
-    var notReserved = (reserved.indexOf(i) === -1)
-    if (notReserved) {
-      object[i] = options[i]
-    }
-  }
-  return object
-}
-
-function filterOutReservedFunctions (reserved, options) {
-  // Filter out properties that are functions and are reserved.
-  // Reserved values are passed in at call site.
-
-  var object = {}
-  for (var i in options) {
-    var isReserved = !(reserved.indexOf(i) === -1)
-    var isFunction = (typeof options[i] === 'function')
-    if (!(isReserved && isFunction)) {
-      object[i] = options[i]
-    }
-  }
-  return object
-}
-
-// Return a simpler request object to allow serialization
-function requestToJSON () {
-  var self = this
-  return {
-    uri: self.uri,
-    method: self.method,
-    headers: self.headers
-  }
-}
-
-// Return a simpler response object to allow serialization
-function responseToJSON () {
-  var self = this
-  return {
-    statusCode: self.statusCode,
-    body: self.body,
-    headers: self.headers,
-    request: requestToJSON.call(self.request)
-  }
-}
-
-function Request (options) {
-  // if given the method property in options, set property explicitMethod to true
-
-  // extend the Request instance with any non-reserved properties
-  // remove any reserved functions from the options object
-  // set Request instance to be readable and writable
-  // call init
-
-  var self = this
-
-  // start with HAR, then override with additional options
-  if (options.har) {
-    self._har = new Har(self)
-    options = self._har.options(options)
-  }
-
-  stream.Stream.call(self)
-  var reserved = Object.keys(Request.prototype)
-  var nonReserved = filterForNonReserved(reserved, options)
-
-  extend(self, nonReserved)
-  options = filterOutReservedFunctions(reserved, options)
-
-  self.readable = true
-  self.writable = true
-  if (options.method) {
-    self.explicitMethod = true
-  }
-  self._qs = new Querystring(self)
-  self._auth = new Auth(self)
-  self._oauth = new OAuth(self)
-  self._multipart = new Multipart(self)
-  self._redirect = new Redirect(self)
-  self._tunnel = new Tunnel(self)
-  self.init(options)
-}
-
-util.inherits(Request, stream.Stream)
-
-// Debugging
-Request.debug = process.env.NODE_DEBUG && /\brequest\b/.test(process.env.NODE_DEBUG)
-function debug () {
-  if (Request.debug) {
-    console.error('REQUEST %s', util.format.apply(util, arguments))
-  }
-}
-Request.prototype.debug = debug
-
-Request.prototype.init = function (options) {
-  // init() contains all the code to setup the request object.
-  // the actual outgoing request is not started until start() is called
-  // this function is called from both the constructor and on redirect.
-  var self = this
-  if (!options) {
-    options = {}
-  }
-  self.headers = self.headers ? copy(self.headers) : {}
-
-  // Delete headers with value undefined since they break
-  // ClientRequest.OutgoingMessage.setHeader in node 0.12
-  for (var headerName in self.headers) {
-    if (typeof self.headers[headerName] === 'undefined') {
-      delete self.headers[headerName]
-    }
-  }
-
-  caseless.httpify(self, self.headers)
-
-  if (!self.method) {
-    self.method = options.method || 'GET'
-  }
-  if (!self.localAddress) {
-    self.localAddress = options.localAddress
-  }
-
-  self._qs.init(options)
-
-  debug(options)
-  if (!self.pool && self.pool !== false) {
-    self.pool = globalPool
-  }
-  self.dests = self.dests || []
-  self.__isRequestRequest = true
-
-  // Protect against double callback
-  if (!self._callback && self.callback) {
-    self._callback = self.callback
-    self.callback = function () {
-      if (self._callbackCalled) {
-        return // Print a warning maybe?
-      }
-      self._callbackCalled = true
-      self._callback.apply(self, arguments)
-    }
-    self.on('error', self.callback.bind())
-    self.on('complete', self.callback.bind(self, null))
-  }
-
-  // People use this property instead all the time, so support it
-  if (!self.uri && self.url) {
-    self.uri = self.url
-    delete self.url
-  }
-
-  // If there's a baseUrl, then use it as the base URL (i.e. uri must be
-  // specified as a relative path and is appended to baseUrl).
-  if (self.baseUrl) {
-    if (typeof self.baseUrl !== 'string') {
-      return self.emit('error', new Error('options.baseUrl must be a string'))
-    }
-
-    if (typeof self.uri !== 'string') {
-      return self.emit('error', new Error('options.uri must be a string when using options.baseUrl'))
-    }
-
-    if (self.uri.indexOf('//') === 0 || self.uri.indexOf('://') !== -1) {
-      return self.emit('error', new Error('options.uri must be a path when using options.baseUrl'))
-    }
-
-    // Handle all cases to make sure that there's only one slash between
-    // baseUrl and uri.
-    var baseUrlEndsWithSlash = self.baseUrl.lastIndexOf('/') === self.baseUrl.length - 1
-    var uriStartsWithSlash = self.uri.indexOf('/') === 0
-
-    if (baseUrlEndsWithSlash && uriStartsWithSlash) {
-      self.uri = self.baseUrl + self.uri.slice(1)
-    } else if (baseUrlEndsWithSlash || uriStartsWithSlash) {
-      self.uri = self.baseUrl + self.uri
-    } else if (self.uri === '') {
-      self.uri = self.baseUrl
-    } else {
-      self.uri = self.baseUrl + '/' + self.uri
-    }
-    delete self.baseUrl
-  }
-
-  // A URI is needed by this point, emit error if we haven't been able to get one
-  if (!self.uri) {
-    return self.emit('error', new Error('options.uri is a required argument'))
-  }
-
-  // If a string URI/URL was given, parse it into a URL object
-  if (typeof self.uri === 'string') {
-    self.uri = url.parse(self.uri)
-  }
-
-  // Some URL objects are not from a URL parsed string and need href added
-  if (!self.uri.href) {
-    self.uri.href = url.format(self.uri)
-  }
-
-  // DEPRECATED: Warning for users of the old Unix Sockets URL Scheme
-  if (self.uri.protocol === 'unix:') {
-    return self.emit('error', new Error('`unix://` URL scheme is no longer supported. Please use the format `http://unix:SOCKET:PATH`'))
-  }
-
-  // Support Unix Sockets
-  if (self.uri.host === 'unix') {
-    self.enableUnixSocket()
-  }
-
-  if (self.strictSSL === false) {
-    self.rejectUnauthorized = false
-  }
-
-  if (!self.uri.pathname) { self.uri.pathname = '/' }
-
-  if (!(self.uri.host || (self.uri.hostname && self.uri.port)) && !self.uri.isUnix) {
-    // Invalid URI: it may generate lot of bad errors, like 'TypeError: Cannot call method `indexOf` of undefined' in CookieJar
-    // Detect and reject it as soon as possible
-    var faultyUri = url.format(self.uri)
-    var message = 'Invalid URI "' + faultyUri + '"'
-    if (Object.keys(options).length === 0) {
-      // No option ? This can be the sign of a redirect
-      // As this is a case where the user cannot do anything (they didn't call request directly with this URL)
-      // they should be warned that it can be caused by a redirection (can save some hair)
-      message += '. This can be caused by a crappy redirection.'
-    }
-    // This error was fatal
-    self.abort()
-    return self.emit('error', new Error(message))
-  }
-
-  if (!self.hasOwnProperty('proxy')) {
-    self.proxy = getProxyFromURI(self.uri)
-  }
-
-  self.tunnel = self._tunnel.isEnabled()
-  if (self.proxy) {
-    self._tunnel.setup(options)
-  }
-
-  self._redirect.onRequest(options)
-
-  self.setHost = false
-  if (!self.hasHeader('host')) {
-    var hostHeaderName = self.originalHostHeaderName || 'host'
-    // When used with an IPv6 address, `host` will provide
-    // the correct bracketed format, unlike using `hostname` and
-    // optionally adding the `port` when necessary.
-    self.setHeader(hostHeaderName, self.uri.host)
-    self.setHost = true
-  }
-
-  self.jar(self._jar || options.jar)
-
-  if (!self.uri.port) {
-    if (self.uri.protocol === 'http:') { self.uri.port = 80 } else if (self.uri.protocol === 'https:') { self.uri.port = 443 }
-  }
-
-  if (self.proxy && !self.tunnel) {
-    self.port = self.proxy.port
-    self.host = self.proxy.hostname
-  } else {
-    self.port = self.uri.port
-    self.host = self.uri.hostname
-  }
-
-  if (options.form) {
-    self.form(options.form)
-  }
-
-  if (options.formData) {
-    var formData = options.formData
-    var requestForm = self.form()
-    var appendFormValue = function (key, value) {
-      if (value && value.hasOwnProperty('value') && value.hasOwnProperty('options')) {
-        requestForm.append(key, value.value, value.options)
-      } else {
-        requestForm.append(key, value)
-      }
-    }
-    for (var formKey in formData) {
-      if (formData.hasOwnProperty(formKey)) {
-        var formValue = formData[formKey]
-        if (formValue instanceof Array) {
-          for (var j = 0; j < formValue.length; j++) {
-            appendFormValue(formKey, formValue[j])
-          }
-        } else {
-          appendFormValue(formKey, formValue)
-        }
-      }
-    }
-  }
-
-  if (options.qs) {
-    self.qs(options.qs)
-  }
-
-  if (self.uri.path) {
-    self.path = self.uri.path
-  } else {
-    self.path = self.uri.pathname + (self.uri.search || '')
-  }
-
-  if (self.path.length === 0) {
-    self.path = '/'
-  }
-
-  // Auth must happen last in case signing is dependent on other headers
-  if (options.aws) {
-    self.aws(options.aws)
-  }
-
-  if (options.hawk) {
-    self.hawk(options.hawk)
-  }
-
-  if (options.httpSignature) {
-    self.httpSignature(options.httpSignature)
-  }
-
-  if (options.auth) {
-    if (Object.prototype.hasOwnProperty.call(options.auth, 'username')) {
-      options.auth.user = options.auth.username
-    }
-    if (Object.prototype.hasOwnProperty.call(options.auth, 'password')) {
-      options.auth.pass = options.auth.password
-    }
-
-    self.auth(
-      options.auth.user,
-      options.auth.pass,
-      options.auth.sendImmediately,
-      options.auth.bearer
-    )
-  }
-
-  if (self.gzip && !self.hasHeader('accept-encoding')) {
-    self.setHeader('accept-encoding', 'gzip, deflate')
-  }
-
-  if (self.uri.auth && !self.hasHeader('authorization')) {
-    var uriAuthPieces = self.uri.auth.split(':').map(function (item) { return self._qs.unescape(item) })
-    self.auth(uriAuthPieces[0], uriAuthPieces.slice(1).join(':'), true)
-  }
-
-  if (!self.tunnel && self.proxy && self.proxy.auth && !self.hasHeader('proxy-authorization')) {
-    var proxyAuthPieces = self.proxy.auth.split(':').map(function (item) { return self._qs.unescape(item) })
-    var authHeader = 'Basic ' + toBase64(proxyAuthPieces.join(':'))
-    self.setHeader('proxy-authorization', authHeader)
-  }
-
-  if (self.proxy && !self.tunnel) {
-    self.path = (self.uri.protocol + '//' + self.uri.host + self.path)
-  }
-
-  if (options.json) {
-    self.json(options.json)
-  }
-  if (options.multipart) {
-    self.multipart(options.multipart)
-  }
-
-  if (options.time) {
-    self.timing = true
-
-    // NOTE: elapsedTime is deprecated in favor of .timings
-    self.elapsedTime = self.elapsedTime || 0
-  }
-
-  function setContentLength () {
-    if (isTypedArray(self.body)) {
-      self.body = Buffer.from(self.body)
-    }
-
-    if (!self.hasHeader('content-length')) {
-      var length
-      if (typeof self.body === 'string') {
-        length = Buffer.byteLength(self.body)
-      } else if (Array.isArray(self.body)) {
-        length = self.body.reduce(function (a, b) { return a + b.length }, 0)
-      } else {
-        length = self.body.length
-      }
-
-      if (length) {
-        self.setHeader('content-length', length)
-      } else {
-        self.emit('error', new Error('Argument error, options.body.'))
-      }
-    }
-  }
-  if (self.body && !isstream(self.body)) {
-    setContentLength()
-  }
-
-  if (options.oauth) {
-    self.oauth(options.oauth)
-  } else if (self._oauth.params && self.hasHeader('authorization')) {
-    self.oauth(self._oauth.params)
-  }
-
-  var protocol = self.proxy && !self.tunnel ? self.proxy.protocol : self.uri.protocol
-  var defaultModules = {'http:': http, 'https:': https}
-  var httpModules = self.httpModules || {}
-
-  self.httpModule = httpModules[protocol] || defaultModules[protocol]
-
-  if (!self.httpModule) {
-    return self.emit('error', new Error('Invalid protocol: ' + protocol))
-  }
-
-  if (options.ca) {
-    self.ca = options.ca
-  }
-
-  if (!self.agent) {
-    if (options.agentOptions) {
-      self.agentOptions = options.agentOptions
-    }
-
-    if (options.agentClass) {
-      self.agentClass = options.agentClass
-    } else if (options.forever) {
-      var v = version()
-      // use ForeverAgent in node 0.10- only
-      if (v.major === 0 && v.minor <= 10) {
-        self.agentClass = protocol === 'http:' ? ForeverAgent : ForeverAgent.SSL
-      } else {
-        self.agentClass = self.httpModule.Agent
-        self.agentOptions = self.agentOptions || {}
-        self.agentOptions.keepAlive = true
-      }
-    } else {
-      self.agentClass = self.httpModule.Agent
-    }
-  }
-
-  if (self.pool === false) {
-    self.agent = false
-  } else {
-    self.agent = self.agent || self.getNewAgent()
-  }
-
-  self.on('pipe', function (src) {
-    if (self.ntick && self._started) {
-      self.emit('error', new Error('You cannot pipe to this stream after the outbound request has started.'))
-    }
-    self.src = src
-    if (isReadStream(src)) {
-      if (!self.hasHeader('content-type')) {
-        self.setHeader('content-type', mime.lookup(src.path))
-      }
-    } else {
-      if (src.headers) {
-        for (var i in src.headers) {
-          if (!self.hasHeader(i)) {
-            self.setHeader(i, src.headers[i])
-          }
-        }
-      }
-      if (self._json && !self.hasHeader('content-type')) {
-        self.setHeader('content-type', 'application/json')
-      }
-      if (src.method && !self.explicitMethod) {
-        self.method = src.method
-      }
-    }
-
-  // self.on('pipe', function () {
-  //   console.error('You have already piped to this stream. Pipeing twice is likely to break the request.')
-  // })
-  })
-
-  defer(function () {
-    if (self._aborted) {
-      return
-    }
-
-    var end = function () {
-      if (self._form) {
-        if (!self._auth.hasAuth) {
-          self._form.pipe(self)
-        } else if (self._auth.hasAuth && self._auth.sentAuth) {
-          self._form.pipe(self)
-        }
-      }
-      if (self._multipart && self._multipart.chunked) {
-        self._multipart.body.pipe(self)
-      }
-      if (self.body) {
-        if (isstream(self.body)) {
-          self.body.pipe(self)
-        } else {
-          setContentLength()
-          if (Array.isArray(self.body)) {
-            self.body.forEach(function (part) {
-              self.write(part)
-            })
-          } else {
-            self.write(self.body)
-          }
-          self.end()
-        }
-      } else if (self.requestBodyStream) {
-        console.warn('options.requestBodyStream is deprecated, please pass the request object to stream.pipe.')
-        self.requestBodyStream.pipe(self)
-      } else if (!self.src) {
-        if (self._auth.hasAuth && !self._auth.sentAuth) {
-          self.end()
-          return
-        }
-        if (self.method !== 'GET' && typeof self.method !== 'undefined') {
-          self.setHeader('content-length', 0)
-        }
-        self.end()
-      }
-    }
-
-    if (self._form && !self.hasHeader('content-length')) {
-      // Before ending the request, we had to compute the length of the whole form, asyncly
-      self.setHeader(self._form.getHeaders(), true)
-      self._form.getLength(function (err, length) {
-        if (!err && !isNaN(length)) {
-          self.setHeader('content-length', length)
-        }
-        end()
-      })
-    } else {
-      end()
-    }
-
-    self.ntick = true
-  })
-}
-
-Request.prototype.getNewAgent = function () {
-  var self = this
-  var Agent = self.agentClass
-  var options = {}
-  if (self.agentOptions) {
-    for (var i in self.agentOptions) {
-      options[i] = self.agentOptions[i]
-    }
-  }
-  if (self.ca) {
-    options.ca = self.ca
-  }
-  if (self.ciphers) {
-    options.ciphers = self.ciphers
-  }
-  if (self.secureProtocol) {
-    options.secureProtocol = self.secureProtocol
-  }
-  if (self.secureOptions) {
-    options.secureOptions = self.secureOptions
-  }
-  if (typeof self.rejectUnauthorized !== 'undefined') {
-    options.rejectUnauthorized = self.rejectUnauthorized
-  }
-
-  if (self.cert && self.key) {
-    options.key = self.key
-    options.cert = self.cert
-  }
-
-  if (self.pfx) {
-    options.pfx = self.pfx
-  }
-
-  if (self.passphrase) {
-    options.passphrase = self.passphrase
-  }
-
-  var poolKey = ''
-
-  // different types of agents are in different pools
-  if (Agent !== self.httpModule.Agent) {
-    poolKey += Agent.name
-  }
-
-  // ca option is only relevant if proxy or destination are https
-  var proxy = self.proxy
-  if (typeof proxy === 'string') {
-    proxy = url.parse(proxy)
-  }
-  var isHttps = (proxy && proxy.protocol === 'https:') || this.uri.protocol === 'https:'
-
-  if (isHttps) {
-    if (options.ca) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.ca
-    }
-
-    if (typeof options.rejectUnauthorized !== 'undefined') {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.rejectUnauthorized
-    }
-
-    if (options.cert) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.cert.toString('ascii') + options.key.toString('ascii')
-    }
-
-    if (options.pfx) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.pfx.toString('ascii')
-    }
-
-    if (options.ciphers) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.ciphers
-    }
-
-    if (options.secureProtocol) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.secureProtocol
-    }
-
-    if (options.secureOptions) {
-      if (poolKey) {
-        poolKey += ':'
-      }
-      poolKey += options.secureOptions
-    }
-  }
-
-  if (self.pool === globalPool && !poolKey && Object.keys(options).length === 0 && self.httpModule.globalAgent) {
-    // not doing anything special.  Use the globalAgent
-    return self.httpModule.globalAgent
-  }
-
-  // we're using a stored agent.  Make sure it's protocol-specific
-  poolKey = self.uri.protocol + poolKey
-
-  // generate a new agent for this setting if none yet exists
-  if (!self.pool[poolKey]) {
-    self.pool[poolKey] = new Agent(options)
-    // properly set maxSockets on new agents
-    if (self.pool.maxSockets) {
-      self.pool[poolKey].maxSockets = self.pool.maxSockets
-    }
-  }
-
-  return self.pool[poolKey]
-}
-
-Request.prototype.start = function () {
-  // start() is called once we are ready to send the outgoing HTTP request.
-  // this is usually called on the first write(), end() or on nextTick()
-  var self = this
-
-  if (self.timing) {
-    // All timings will be relative to this request's startTime.  In order to do this,
-    // we need to capture the wall-clock start time (via Date), immediately followed
-    // by the high-resolution timer (via now()).  While these two won't be set
-    // at the _exact_ same time, they should be close enough to be able to calculate
-    // high-resolution, monotonically non-decreasing timestamps relative to startTime.
-    var startTime = new Date().getTime()
-    var startTimeNow = now()
-  }
-
-  if (self._aborted) {
-    return
-  }
-
-  self._started = true
-  self.method = self.method || 'GET'
-  self.href = self.uri.href
-
-  if (self.src && self.src.stat && self.src.stat.size && !self.hasHeader('content-length')) {
-    self.setHeader('content-length', self.src.stat.size)
-  }
-  if (self._aws) {
-    self.aws(self._aws, true)
-  }
-
-  // We have a method named auth, which is completely different from the http.request
-  // auth option.  If we don't remove it, we're gonna have a bad time.
-  var reqOptions = copy(self)
-  delete reqOptions.auth
-
-  debug('make request', self.uri.href)
-
-  // node v6.8.0 now supports a `timeout` value in `http.request()`, but we
-  // should delete it for now since we handle timeouts manually for better
-  // consistency with node versions before v6.8.0
-  delete reqOptions.timeout
-
-  try {
-    self.req = self.httpModule.request(reqOptions)
-  } catch (err) {
-    self.emit('error', err)
-    return
-  }
-
-  if (self.timing) {
-    self.startTime = startTime
-    self.startTimeNow = startTimeNow
-
-    // Timing values will all be relative to startTime (by comparing to startTimeNow
-    // so we have an accurate clock)
-    self.timings = {}
-  }
-
-  var timeout
-  if (self.timeout && !self.timeoutTimer) {
-    if (self.timeout < 0) {
-      timeout = 0
-    } else if (typeof self.timeout === 'number' && isFinite(self.timeout)) {
-      timeout = self.timeout
-    }
-  }
-
-  self.req.on('response', self.onRequestResponse.bind(self))
-  self.req.on('error', self.onRequestError.bind(self))
-  self.req.on('drain', function () {
-    self.emit('drain')
-  })
-
-  self.req.on('socket', function (socket) {
-    // `._connecting` was the old property which was made public in node v6.1.0
-    var isConnecting = socket._connecting || socket.connecting
-    if (self.timing) {
-      self.timings.socket = now() - self.startTimeNow
-
-      if (isConnecting) {
-        var onLookupTiming = function () {
-          self.timings.lookup = now() - self.startTimeNow
-        }
-
-        var onConnectTiming = function () {
-          self.timings.connect = now() - self.startTimeNow
-        }
-
-        socket.once('lookup', onLookupTiming)
-        socket.once('connect', onConnectTiming)
-
-        // clean up timing event listeners if needed on error
-        self.req.once('error', function () {
-          socket.removeListener('lookup', onLookupTiming)
-          socket.removeListener('connect', onConnectTiming)
-        })
-      }
-    }
-
-    var setReqTimeout = function () {
-      // This timeout sets the amount of time to wait *between* bytes sent
-      // from the server once connected.
-      //
-      // In particular, it's useful for erroring if the server fails to send
-      // data halfway through streaming a response.
-      self.req.setTimeout(timeout, function () {
-        if (self.req) {
-          self.abort()
-          var e = new Error('ESOCKETTIMEDOUT')
-          e.code = 'ESOCKETTIMEDOUT'
-          e.connect = false
-          self.emit('error', e)
-        }
-      })
-    }
-    if (timeout !== undefined) {
-      // Only start the connection timer if we're actually connecting a new
-      // socket, otherwise if we're already connected (because this is a
-      // keep-alive connection) do not bother. This is important since we won't
-      // get a 'connect' event for an already connected socket.
-      if (isConnecting) {
-        var onReqSockConnect = function () {
-          socket.removeListener('connect', onReqSockConnect)
-          clearTimeout(self.timeoutTimer)
-          self.timeoutTimer = null
-          setReqTimeout()
-        }
-
-        socket.on('connect', onReqSockConnect)
-
-        self.req.on('error', function (err) { // eslint-disable-line handle-callback-err
-          socket.removeListener('connect', onReqSockConnect)
-        })
-
-        // Set a timeout in memory - this block will throw if the server takes more
-        // than `timeout` to write the HTTP status and headers (corresponding to
-        // the on('response') event on the client). NB: this measures wall-clock
-        // time, not the time between bytes sent by the server.
-        self.timeoutTimer = setTimeout(function () {
-          socket.removeListener('connect', onReqSockConnect)
-          self.abort()
-          var e = new Error('ETIMEDOUT')
-          e.code = 'ETIMEDOUT'
-          e.connect = true
-          self.emit('error', e)
-        }, timeout)
-      } else {
-        // We're already connected
-        setReqTimeout()
-      }
-    }
-    self.emit('socket', socket)
-  })
-
-  self.emit('request', self.req)
-}
-
-Request.prototype.onRequestError = function (error) {
-  var self = this
-  if (self._aborted) {
-    return
-  }
-  if (self.req && self.req._reusedSocket && error.code === 'ECONNRESET' &&
-    self.agent.addRequestNoreuse) {
-    self.agent = { addRequest: self.agent.addRequestNoreuse.bind(self.agent) }
-    self.start()
-    self.req.end()
-    return
-  }
-  if (self.timeout && self.timeoutTimer) {
-    clearTimeout(self.timeoutTimer)
-    self.timeoutTimer = null
-  }
-  self.emit('error', error)
-}
-
-Request.prototype.onRequestResponse = function (response) {
-  var self = this
-
-  if (self.timing) {
-    self.timings.response = now() - self.startTimeNow
-  }
-
-  debug('onRequestResponse', self.uri.href, response.statusCode, response.headers)
-  response.on('end', function () {
-    if (self.timing) {
-      self.timings.end = now() - self.startTimeNow
-      response.timingStart = self.startTime
-
-      // fill in the blanks for any periods that didn't trigger, such as
-      // no lookup or connect due to keep alive
-      if (!self.timings.socket) {
-        self.timings.socket = 0
-      }
-      if (!self.timings.lookup) {
-        self.timings.lookup = self.timings.socket
-      }
-      if (!self.timings.connect) {
-        self.timings.connect = self.timings.lookup
-      }
-      if (!self.timings.response) {
-        self.timings.response = self.timings.connect
-      }
-
-      debug('elapsed time', self.timings.end)
-
-      // elapsedTime includes all redirects
-      self.elapsedTime += Math.round(self.timings.end)
-
-      // NOTE: elapsedTime is deprecated in favor of .timings
-      response.elapsedTime = self.elapsedTime
-
-      // timings is just for the final fetch
-      response.timings = self.timings
-
-      // pre-calculate phase timings as well
-      response.timingPhases = {
-        wait: self.timings.socket,
-        dns: self.timings.lookup - self.timings.socket,
-        tcp: self.timings.connect - self.timings.lookup,
-        firstByte: self.timings.response - self.timings.connect,
-        download: self.timings.end - self.timings.response,
-        total: self.timings.end
-      }
-    }
-    debug('response end', self.uri.href, response.statusCode, response.headers)
-  })
-
-  if (self._aborted) {
-    debug('aborted', self.uri.href)
-    response.resume()
-    return
-  }
-
-  self.response = response
-  response.request = self
-  response.toJSON = responseToJSON
-
-  // XXX This is different on 0.10, because SSL is strict by default
-  if (self.httpModule === https &&
-    self.strictSSL && (!response.hasOwnProperty('socket') ||
-    !response.socket.authorized)) {
-    debug('strict ssl error', self.uri.href)
-    var sslErr = response.hasOwnProperty('socket') ? response.socket.authorizationError : self.uri.href + ' does not support SSL'
-    self.emit('error', new Error('SSL Error: ' + sslErr))
-    return
-  }
-
-  // Save the original host before any redirect (if it changes, we need to
-  // remove any authorization headers).  Also remember the case of the header
-  // name because lots of broken servers expect Host instead of host and we
-  // want the caller to be able to specify this.
-  self.originalHost = self.getHeader('host')
-  if (!self.originalHostHeaderName) {
-    self.originalHostHeaderName = self.hasHeader('host')
-  }
-  if (self.setHost) {
-    self.removeHeader('host')
-  }
-  if (self.timeout && self.timeoutTimer) {
-    clearTimeout(self.timeoutTimer)
-    self.timeoutTimer = null
-  }
-
-  var targetCookieJar = (self._jar && self._jar.setCookie) ? self._jar : globalCookieJar
-  var addCookie = function (cookie) {
-    // set the cookie if it's domain in the href's domain.
-    try {
-      targetCookieJar.setCookie(cookie, self.uri.href, {ignoreError: true})
-    } catch (e) {
-      self.emit('error', e)
-    }
-  }
-
-  response.caseless = caseless(response.headers)
-
-  if (response.caseless.has('set-cookie') && (!self._disableCookies)) {
-    var headerName = response.caseless.has('set-cookie')
-    if (Array.isArray(response.headers[headerName])) {
-      response.headers[headerName].forEach(addCookie)
-    } else {
-      addCookie(response.headers[headerName])
-    }
-  }
-
-  if (self._redirect.onResponse(response)) {
-    return // Ignore the rest of the response
-  } else {
-    // Be a good stream and emit end when the response is finished.
-    // Hack to emit end on close because of a core bug that never fires end
-    response.on('close', function () {
-      if (!self._ended) {
-        self.response.emit('end')
-      }
-    })
-
-    response.once('end', function () {
-      self._ended = true
-    })
-
-    var noBody = function (code) {
-      return (
-        self.method === 'HEAD' ||
-        // Informational
-        (code >= 100 && code < 200) ||
-        // No Content
-        code === 204 ||
-        // Not Modified
-        code === 304
-      )
-    }
-
-    var responseContent
-    if (self.gzip && !noBody(response.statusCode)) {
-      var contentEncoding = response.headers['content-encoding'] || 'identity'
-      contentEncoding = contentEncoding.trim().toLowerCase()
-
-      // Be more lenient with decoding compressed responses, since (very rarely)
-      // servers send slightly invalid gzip responses that are still accepted
-      // by common browsers.
-      // Always using Z_SYNC_FLUSH is what cURL does.
-      var zlibOptions = {
-        flush: zlib.Z_SYNC_FLUSH,
-        finishFlush: zlib.Z_SYNC_FLUSH
-      }
-
-      if (contentEncoding === 'gzip') {
-        responseContent = zlib.createGunzip(zlibOptions)
-        response.pipe(responseContent)
-      } else if (contentEncoding === 'deflate') {
-        responseContent = zlib.createInflate(zlibOptions)
-        response.pipe(responseContent)
-      } else {
-        // Since previous versions didn't check for Content-Encoding header,
-        // ignore any invalid values to preserve backwards-compatibility
-        if (contentEncoding !== 'identity') {
-          debug('ignoring unrecognized Content-Encoding ' + contentEncoding)
-        }
-        responseContent = response
-      }
-    } else {
-      responseContent = response
-    }
-
-    if (self.encoding) {
-      if (self.dests.length !== 0) {
-        console.error('Ignoring encoding parameter as this stream is being piped to another stream which makes the encoding option invalid.')
-      } else {
-        responseContent.setEncoding(self.encoding)
-      }
-    }
-
-    if (self._paused) {
-      responseContent.pause()
-    }
-
-    self.responseContent = responseContent
-
-    self.emit('response', response)
-
-    self.dests.forEach(function (dest) {
-      self.pipeDest(dest)
-    })
-
-    responseContent.on('data', function (chunk) {
-      if (self.timing && !self.responseStarted) {
-        self.responseStartTime = (new Date()).getTime()
-
-        // NOTE: responseStartTime is deprecated in favor of .timings
-        response.responseStartTime = self.responseStartTime
-      }
-      self._destdata = true
-      self.emit('data', chunk)
-    })
-    responseContent.once('end', function (chunk) {
-      self.emit('end', chunk)
-    })
-    responseContent.on('error', function (error) {
-      self.emit('error', error)
-    })
-    responseContent.on('close', function () { self.emit('close') })
-
-    if (self.callback) {
-      self.readResponseBody(response)
-    } else { // if no callback
-      self.on('end', function () {
-        if (self._aborted) {
-          debug('aborted', self.uri.href)
-          return
-        }
-        self.emit('complete', response)
-      })
-    }
-  }
-  debug('finish init function', self.uri.href)
-}
-
-Request.prototype.readResponseBody = function (response) {
-  var self = this
-  debug("reading response's body")
-  var buffers = []
-  var bufferLength = 0
-  var strings = []
-
-  self.on('data', function (chunk) {
-    if (!Buffer.isBuffer(chunk)) {
-      strings.push(chunk)
-    } else if (chunk.length) {
-      bufferLength += chunk.length
-      buffers.push(chunk)
-    }
-  })
-  self.on('end', function () {
-    debug('end event', self.uri.href)
-    if (self._aborted) {
-      debug('aborted', self.uri.href)
-      // `buffer` is defined in the parent scope and used in a closure it exists for the life of the request.
-      // This can lead to leaky behavior if the user retains a reference to the request object.
-      buffers = []
-      bufferLength = 0
-      return
-    }
-
-    if (bufferLength) {
-      debug('has body', self.uri.href, bufferLength)
-      response.body = Buffer.concat(buffers, bufferLength)
-      if (self.encoding !== null) {
-        response.body = response.body.toString(self.encoding)
-      }
-      // `buffer` is defined in the parent scope and used in a closure it exists for the life of the Request.
-      // This can lead to leaky behavior if the user retains a reference to the request object.
-      buffers = []
-      bufferLength = 0
-    } else if (strings.length) {
-      // The UTF8 BOM [0xEF,0xBB,0xBF] is converted to [0xFE,0xFF] in the JS UTC16/UCS2 representation.
-      // Strip this value out when the encoding is set to 'utf8', as upstream consumers won't expect it and it breaks JSON.parse().
-      if (self.encoding === 'utf8' && strings[0].length > 0 && strings[0][0] === '\uFEFF') {
-        strings[0] = strings[0].substring(1)
-      }
-      response.body = strings.join('')
-    }
-
-    if (self._json) {
-      try {
-        response.body = JSON.parse(response.body, self._jsonReviver)
-      } catch (e) {
-        debug('invalid JSON received', self.uri.href)
-      }
-    }
-    debug('emitting complete', self.uri.href)
-    if (typeof response.body === 'undefined' && !self._json) {
-      response.body = self.encoding === null ? Buffer.alloc(0) : ''
-    }
-    self.emit('complete', response, response.body)
-  })
-}
-
-Request.prototype.abort = function () {
-  var self = this
-  self._aborted = true
-
-  if (self.req) {
-    self.req.abort()
-  } else if (self.response) {
-    self.response.destroy()
-  }
-
-  self.emit('abort')
-}
-
-Request.prototype.pipeDest = function (dest) {
-  var self = this
-  var response = self.response
-  // Called after the response is received
-  if (dest.headers && !dest.headersSent) {
-    if (response.caseless.has('content-type')) {
-      var ctname = response.caseless.has('content-type')
-      if (dest.setHeader) {
-        dest.setHeader(ctname, response.headers[ctname])
-      } else {
-        dest.headers[ctname] = response.headers[ctname]
-      }
-    }
-
-    if (response.caseless.has('content-length')) {
-      var clname = response.caseless.has('content-length')
-      if (dest.setHeader) {
-        dest.setHeader(clname, response.headers[clname])
-      } else {
-        dest.headers[clname] = response.headers[clname]
-      }
-    }
-  }
-  if (dest.setHeader && !dest.headersSent) {
-    for (var i in response.headers) {
-      // If the response content is being decoded, the Content-Encoding header
-      // of the response doesn't represent the piped content, so don't pass it.
-      if (!self.gzip || i !== 'content-encoding') {
-        dest.setHeader(i, response.headers[i])
-      }
-    }
-    dest.statusCode = response.statusCode
-  }
-  if (self.pipefilter) {
-    self.pipefilter(response, dest)
-  }
-}
-
-Request.prototype.qs = function (q, clobber) {
-  var self = this
-  var base
-  if (!clobber && self.uri.query) {
-    base = self._qs.parse(self.uri.query)
-  } else {
-    base = {}
-  }
-
-  for (var i in q) {
-    base[i] = q[i]
-  }
-
-  var qs = self._qs.stringify(base)
-
-  if (qs === '') {
-    return self
-  }
-
-  self.uri = url.parse(self.uri.href.split('?')[0] + '?' + qs)
-  self.url = self.uri
-  self.path = self.uri.path
-
-  if (self.uri.host === 'unix') {
-    self.enableUnixSocket()
-  }
-
-  return self
-}
-Request.prototype.form = function (form) {
-  var self = this
-  if (form) {
-    if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
-      self.setHeader('content-type', 'application/x-www-form-urlencoded')
-    }
-    self.body = (typeof form === 'string')
-      ? self._qs.rfc3986(form.toString('utf8'))
-      : self._qs.stringify(form).toString('utf8')
-    return self
-  }
-  // create form-data object
-  self._form = new FormData()
-  self._form.on('error', function (err) {
-    err.message = 'form-data: ' + err.message
-    self.emit('error', err)
-    self.abort()
-  })
-  return self._form
-}
-Request.prototype.multipart = function (multipart) {
-  var self = this
-
-  self._multipart.onRequest(multipart)
-
-  if (!self._multipart.chunked) {
-    self.body = self._multipart.body
-  }
-
-  return self
-}
-Request.prototype.json = function (val) {
-  var self = this
-
-  if (!self.hasHeader('accept')) {
-    self.setHeader('accept', 'application/json')
-  }
-
-  if (typeof self.jsonReplacer === 'function') {
-    self._jsonReplacer = self.jsonReplacer
-  }
-
-  self._json = true
-  if (typeof val === 'boolean') {
-    if (self.body !== undefined) {
-      if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
-        self.body = safeStringify(self.body, self._jsonReplacer)
-      } else {
-        self.body = self._qs.rfc3986(self.body)
-      }
-      if (!self.hasHeader('content-type')) {
-        self.setHeader('content-type', 'application/json')
-      }
-    }
-  } else {
-    self.body = safeStringify(val, self._jsonReplacer)
-    if (!self.hasHeader('content-type')) {
-      self.setHeader('content-type', 'application/json')
-    }
-  }
-
-  if (typeof self.jsonReviver === 'function') {
-    self._jsonReviver = self.jsonReviver
-  }
-
-  return self
-}
-Request.prototype.getHeader = function (name, headers) {
-  var self = this
-  var result, re, match
-  if (!headers) {
-    headers = self.headers
-  }
-  Object.keys(headers).forEach(function (key) {
-    if (key.length !== name.length) {
-      return
-    }
-    re = new RegExp(name, 'i')
-    match = key.match(re)
-    if (match) {
-      result = headers[key]
-    }
-  })
-  return result
-}
-Request.prototype.enableUnixSocket = function () {
-  // Get the socket & request paths from the URL
-  var unixParts = this.uri.path.split(':')
-  var host = unixParts[0]
-  var path = unixParts[1]
-  // Apply unix properties to request
-  this.socketPath = host
-  this.uri.pathname = path
-  this.uri.path = path
-  this.uri.host = host
-  this.uri.hostname = host
-  this.uri.isUnix = true
-}
-
-Request.prototype.auth = function (user, pass, sendImmediately, bearer) {
-  var self = this
-
-  self._auth.onRequest(user, pass, sendImmediately, bearer)
-
-  return self
-}
-Request.prototype.aws = function (opts, now) {
-  var self = this
-
-  if (!now) {
-    self._aws = opts
-    return self
-  }
-
-  if (opts.sign_version === 4 || opts.sign_version === '4') {
-    // use aws4
-    var options = {
-      host: self.uri.host,
-      path: self.uri.path,
-      method: self.method,
-      headers: {
-        'content-type': self.getHeader('content-type') || ''
-      },
-      body: self.body
-    }
-    var signRes = aws4.sign(options, {
-      accessKeyId: opts.key,
-      secretAccessKey: opts.secret,
-      sessionToken: opts.session
-    })
-    self.setHeader('authorization', signRes.headers.Authorization)
-    self.setHeader('x-amz-date', signRes.headers['X-Amz-Date'])
-    if (signRes.headers['X-Amz-Security-Token']) {
-      self.setHeader('x-amz-security-token', signRes.headers['X-Amz-Security-Token'])
-    }
-  } else {
-    // default: use aws-sign2
-    var date = new Date()
-    self.setHeader('date', date.toUTCString())
-    var auth = {
-      key: opts.key,
-      secret: opts.secret,
-      verb: self.method.toUpperCase(),
-      date: date,
-      contentType: self.getHeader('content-type') || '',
-      md5: self.getHeader('content-md5') || '',
-      amazonHeaders: aws2.canonicalizeHeaders(self.headers)
-    }
-    var path = self.uri.path
-    if (opts.bucket && path) {
-      auth.resource = '/' + opts.bucket + path
-    } else if (opts.bucket && !path) {
-      auth.resource = '/' + opts.bucket
-    } else if (!opts.bucket && path) {
-      auth.resource = path
-    } else if (!opts.bucket && !path) {
-      auth.resource = '/'
-    }
-    auth.resource = aws2.canonicalizeResource(auth.resource)
-    self.setHeader('authorization', aws2.authorization(auth))
-  }
-
-  return self
-}
-Request.prototype.httpSignature = function (opts) {
-  var self = this
-  httpSignature.signRequest({
-    getHeader: function (header) {
-      return self.getHeader(header, self.headers)
-    },
-    setHeader: function (header, value) {
-      self.setHeader(header, value)
-    },
-    method: self.method,
-    path: self.path
-  }, opts)
-  debug('httpSignature authorization', self.getHeader('authorization'))
-
-  return self
-}
-Request.prototype.hawk = function (opts) {
-  var self = this
-  self.setHeader('Authorization', hawk.header(self.uri, self.method, opts))
-}
-Request.prototype.oauth = function (_oauth) {
-  var self = this
-
-  self._oauth.onRequest(_oauth)
-
-  return self
-}
-
-Request.prototype.jar = function (jar) {
-  var self = this
-  var cookies
-
-  if (self._redirect.redirectsFollowed === 0) {
-    self.originalCookieHeader = self.getHeader('cookie')
-  }
-
-  if (!jar) {
-    // disable cookies
-    cookies = false
-    self._disableCookies = true
-  } else {
-    var targetCookieJar = (jar && jar.getCookieString) ? jar : globalCookieJar
-    var urihref = self.uri.href
-    // fetch cookie in the Specified host
-    if (targetCookieJar) {
-      cookies = targetCookieJar.getCookieString(urihref)
-    }
-  }
-
-  // if need cookie and cookie is not empty
-  if (cookies && cookies.length) {
-    if (self.originalCookieHeader) {
-      // Don't overwrite existing Cookie header
-      self.setHeader('cookie', self.originalCookieHeader + '; ' + cookies)
-    } else {
-      self.setHeader('cookie', cookies)
-    }
-  }
-  self._jar = jar
-  return self
-}
-
-// Stream API
-Request.prototype.pipe = function (dest, opts) {
-  var self = this
-
-  if (self.response) {
-    if (self._destdata) {
-      self.emit('error', new Error('You cannot pipe after data has been emitted from the response.'))
-    } else if (self._ended) {
-      self.emit('error', new Error('You cannot pipe after the response has been ended.'))
-    } else {
-      stream.Stream.prototype.pipe.call(self, dest, opts)
-      self.pipeDest(dest)
-      return dest
-    }
-  } else {
-    self.dests.push(dest)
-    stream.Stream.prototype.pipe.call(self, dest, opts)
-    return dest
-  }
-}
-Request.prototype.write = function () {
-  var self = this
-  if (self._aborted) { return }
-
-  if (!self._started) {
-    self.start()
-  }
-  if (self.req) {
-    return self.req.write.apply(self.req, arguments)
-  }
-}
-Request.prototype.end = function (chunk) {
-  var self = this
-  if (self._aborted) { return }
-
-  if (chunk) {
-    self.write(chunk)
-  }
-  if (!self._started) {
-    self.start()
-  }
-  if (self.req) {
-    self.req.end()
-  }
-}
-Request.prototype.pause = function () {
-  var self = this
-  if (!self.responseContent) {
-    self._paused = true
-  } else {
-    self.responseContent.pause.apply(self.responseContent, arguments)
-  }
-}
-Request.prototype.resume = function () {
-  var self = this
-  if (!self.responseContent) {
-    self._paused = false
-  } else {
-    self.responseContent.resume.apply(self.responseContent, arguments)
-  }
-}
-Request.prototype.destroy = function () {
-  var self = this
-  if (!self._ended) {
-    self.end()
-  } else if (self.response) {
-    self.response.destroy()
-  }
-}
-
-Request.defaultProxyHeaderWhiteList =
-  Tunnel.defaultProxyHeaderWhiteList.slice()
-
-Request.defaultProxyHeaderExclusiveList =
-  Tunnel.defaultProxyHeaderExclusiveList.slice()
-
-// Exports
-
-Request.prototype.toJSON = requestToJSON
-module.exports = Request
-
-
-/***/ }),
-/* 814 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var core = __webpack_require__(306);
-var async = __webpack_require__(815);
-async.core = core;
-async.isCore = function isCore(x) { return core[x]; };
-async.sync = __webpack_require__(817);
-
-exports = async;
-module.exports = async;
-
-
-/***/ }),
-/* 815 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var core = __webpack_require__(306);
-var fs = __webpack_require__(5);
-var path = __webpack_require__(0);
-var caller = __webpack_require__(417);
-var nodeModulesPaths = __webpack_require__(418);
-
-var defaultIsFile = function isFile(file, cb) {
-    fs.stat(file, function (err, stat) {
-        if (!err) {
-            return cb(null, stat.isFile() || stat.isFIFO());
-        }
-        if (err.code === 'ENOENT' || err.code === 'ENOTDIR') return cb(null, false);
-        return cb(err);
-    });
-};
-
-module.exports = function resolve(x, options, callback) {
-    var cb = callback;
-    var opts = options || {};
-    if (typeof opts === 'function') {
-        cb = opts;
-        opts = {};
-    }
-    if (typeof x !== 'string') {
-        var err = new TypeError('Path must be a string.');
-        return process.nextTick(function () {
-            cb(err);
-        });
-    }
-
-    var isFile = opts.isFile || defaultIsFile;
-    var readFile = opts.readFile || fs.readFile;
-
-    var extensions = opts.extensions || ['.js'];
-    var basedir = opts.basedir || path.dirname(caller());
-    var parent = opts.filename || basedir;
-
-    opts.paths = opts.paths || [];
-
-    if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/.test(x)) {
-        var res = path.resolve(basedir, x);
-        if (x === '..' || x.slice(-1) === '/') res += '/';
-        if (/\/$/.test(x) && res === basedir) {
-            loadAsDirectory(res, opts.package, onfile);
-        } else loadAsFile(res, opts.package, onfile);
-    } else loadNodeModules(x, basedir, function (err, n, pkg) {
-        if (err) cb(err);
-        else if (n) cb(null, n, pkg);
-        else if (core[x]) return cb(null, x);
-        else {
-            var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
-            moduleError.code = 'MODULE_NOT_FOUND';
-            cb(moduleError);
-        }
-    });
-
-    function onfile(err, m, pkg) {
-        if (err) cb(err);
-        else if (m) cb(null, m, pkg);
-        else loadAsDirectory(res, function (err, d, pkg) {
-            if (err) cb(err);
-            else if (d) cb(null, d, pkg);
-            else {
-                var moduleError = new Error("Cannot find module '" + x + "' from '" + parent + "'");
-                moduleError.code = 'MODULE_NOT_FOUND';
-                cb(moduleError);
-            }
-        });
-    }
-
-    function loadAsFile(x, thePackage, callback) {
-        var loadAsFilePackage = thePackage;
-        var cb = callback;
-        if (typeof loadAsFilePackage === 'function') {
-            cb = loadAsFilePackage;
-            loadAsFilePackage = undefined;
-        }
-
-        var exts = [''].concat(extensions);
-        load(exts, x, loadAsFilePackage);
-
-        function load(exts, x, loadPackage) {
-            if (exts.length === 0) return cb(null, undefined, loadPackage);
-            var file = x + exts[0];
-
-            var pkg = loadPackage;
-            if (pkg) onpkg(null, pkg);
-            else loadpkg(path.dirname(file), onpkg);
-
-            function onpkg(err, pkg_, dir) {
-                pkg = pkg_;
-                if (err) return cb(err);
-                if (dir && pkg && opts.pathFilter) {
-                    var rfile = path.relative(dir, file);
-                    var rel = rfile.slice(0, rfile.length - exts[0].length);
-                    var r = opts.pathFilter(pkg, x, rel);
-                    if (r) return load(
-                        [''].concat(extensions.slice()),
-                        path.resolve(dir, r),
-                        pkg
-                    );
-                }
-                isFile(file, onex);
-            }
-            function onex(err, ex) {
-                if (err) return cb(err);
-                if (ex) return cb(null, file, pkg);
-                load(exts.slice(1), x, pkg);
-            }
-        }
-    }
-
-    function loadpkg(dir, cb) {
-        if (dir === '' || dir === '/') return cb(null);
-        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
-            return cb(null);
-        }
-        if (/[/\\]node_modules[/\\]*$/.test(dir)) return cb(null);
-
-        var pkgfile = path.join(dir, 'package.json');
-        isFile(pkgfile, function (err, ex) {
-            // on err, ex is false
-            if (!ex) return loadpkg(path.dirname(dir), cb);
-
-            readFile(pkgfile, function (err, body) {
-                if (err) cb(err);
-                try { var pkg = JSON.parse(body); } catch (jsonErr) {}
-
-                if (pkg && opts.packageFilter) {
-                    pkg = opts.packageFilter(pkg, pkgfile);
-                }
-                cb(null, pkg, dir);
-            });
-        });
-    }
-
-    function loadAsDirectory(x, loadAsDirectoryPackage, callback) {
-        var cb = callback;
-        var fpkg = loadAsDirectoryPackage;
-        if (typeof fpkg === 'function') {
-            cb = fpkg;
-            fpkg = opts.package;
-        }
-
-        var pkgfile = path.join(x, 'package.json');
-        isFile(pkgfile, function (err, ex) {
-            if (err) return cb(err);
-            if (!ex) return loadAsFile(path.join(x, 'index'), fpkg, cb);
-
-            readFile(pkgfile, function (err, body) {
-                if (err) return cb(err);
-                try {
-                    var pkg = JSON.parse(body);
-                } catch (jsonErr) {}
-
-                if (opts.packageFilter) {
-                    pkg = opts.packageFilter(pkg, pkgfile);
-                }
-
-                if (pkg.main) {
-                    if (pkg.main === '.' || pkg.main === './') {
-                        pkg.main = 'index';
-                    }
-                    loadAsFile(path.resolve(x, pkg.main), pkg, function (err, m, pkg) {
-                        if (err) return cb(err);
-                        if (m) return cb(null, m, pkg);
-                        if (!pkg) return loadAsFile(path.join(x, 'index'), pkg, cb);
-
-                        var dir = path.resolve(x, pkg.main);
-                        loadAsDirectory(dir, pkg, function (err, n, pkg) {
-                            if (err) return cb(err);
-                            if (n) return cb(null, n, pkg);
-                            loadAsFile(path.join(x, 'index'), pkg, cb);
-                        });
-                    });
-                    return;
-                }
-
-                loadAsFile(path.join(x, '/index'), pkg, cb);
-            });
-        });
-    }
-
-    function processDirs(cb, dirs) {
-        if (dirs.length === 0) return cb(null, undefined);
-        var dir = dirs[0];
-
-        var file = path.join(dir, x);
-        loadAsFile(file, opts.package, onfile);
-
-        function onfile(err, m, pkg) {
-            if (err) return cb(err);
-            if (m) return cb(null, m, pkg);
-            loadAsDirectory(path.join(dir, x), opts.package, ondir);
-        }
-
-        function ondir(err, n, pkg) {
-            if (err) return cb(err);
-            if (n) return cb(null, n, pkg);
-            processDirs(cb, dirs.slice(1));
-        }
-    }
-    function loadNodeModules(x, start, cb) {
-        processDirs(cb, nodeModulesPaths(start, opts));
-    }
-};
-
-
-/***/ }),
-/* 816 */
-/***/ (function(module, exports) {
-
-module.exports = {"assert":true,"async_hooks":">= 8","buffer_ieee754":"< 0.9.7","buffer":true,"child_process":true,"cluster":true,"console":true,"constants":true,"crypto":true,"_debugger":"< 8","dgram":true,"dns":true,"domain":true,"events":true,"freelist":"< 6","fs":true,"fs/promises":">= 10 && < 10.1","_http_agent":">= 0.11.1","_http_client":">= 0.11.1","_http_common":">= 0.11.1","_http_incoming":">= 0.11.1","_http_outgoing":">= 0.11.1","_http_server":">= 0.11.1","http":true,"http2":">= 8.8","https":true,"inspector":">= 8.0.0","_linklist":"< 8","module":true,"net":true,"node-inspect/lib/_inspect":">= 7.6.0","node-inspect/lib/internal/inspect_client":">= 7.6.0","node-inspect/lib/internal/inspect_repl":">= 7.6.0","os":true,"path":true,"perf_hooks":">= 8.5","process":">= 1","punycode":true,"querystring":true,"readline":true,"repl":true,"smalloc":">= 0.11.5 && < 3","_stream_duplex":">= 0.9.4","_stream_transform":">= 0.9.4","_stream_wrap":">= 1.4.1","_stream_passthrough":">= 0.9.4","_stream_readable":">= 0.9.4","_stream_writable":">= 0.9.4","stream":true,"string_decoder":true,"sys":true,"timers":true,"_tls_common":">= 0.11.13","_tls_legacy":">= 0.11.3 && < 10","_tls_wrap":">= 0.11.3","tls":true,"trace_events":">= 10","tty":true,"url":true,"util":true,"v8/tools/arguments":">= 10","v8/tools/codemap":[">= 4.4.0 && < 5",">= 5.2.0"],"v8/tools/consarray":[">= 4.4.0 && < 5",">= 5.2.0"],"v8/tools/csvparser":[">= 4.4.0 && < 5",">= 5.2.0"],"v8/tools/logreader":[">= 4.4.0 && < 5",">= 5.2.0"],"v8/tools/profile_view":[">= 4.4.0 && < 5",">= 5.2.0"],"v8/tools/splaytree":[">= 4.4.0 && < 5",">= 5.2.0"],"v8":">= 1","vm":true,"zlib":true}
-
-/***/ }),
-/* 817 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var core = __webpack_require__(306);
-var fs = __webpack_require__(5);
-var path = __webpack_require__(0);
-var caller = __webpack_require__(417);
-var nodeModulesPaths = __webpack_require__(418);
-
-var defaultIsFile = function isFile(file) {
-    try {
-        var stat = fs.statSync(file);
-    } catch (e) {
-        if (e && (e.code === 'ENOENT' || e.code === 'ENOTDIR')) return false;
-        throw e;
-    }
-    return stat.isFile() || stat.isFIFO();
-};
-
-module.exports = function (x, options) {
-    if (typeof x !== 'string') {
-        throw new TypeError('Path must be a string.');
-    }
-    var opts = options || {};
-    var isFile = opts.isFile || defaultIsFile;
-    var readFileSync = opts.readFileSync || fs.readFileSync;
-
-    var extensions = opts.extensions || ['.js'];
-    var basedir = opts.basedir || path.dirname(caller());
-    var parent = opts.filename || basedir;
-
-    opts.paths = opts.paths || [];
-
-    if (/^(?:\.\.?(?:\/|$)|\/|([A-Za-z]:)?[/\\])/.test(x)) {
-        var res = path.resolve(basedir, x);
-        if (x === '..' || x.slice(-1) === '/') res += '/';
-        var m = loadAsFileSync(res) || loadAsDirectorySync(res);
-        if (m) return m;
-    } else {
-        var n = loadNodeModulesSync(x, basedir);
-        if (n) return n;
-    }
-
-    if (core[x]) return x;
-
-    var err = new Error("Cannot find module '" + x + "' from '" + parent + "'");
-    err.code = 'MODULE_NOT_FOUND';
-    throw err;
-
-    function loadAsFileSync(x) {
-        var pkg = loadpkg(path.dirname(x));
-
-        if (pkg && pkg.dir && pkg.pkg && opts.pathFilter) {
-            var rfile = path.relative(pkg.dir, x);
-            var r = opts.pathFilter(pkg.pkg, x, rfile);
-            if (r) {
-                x = path.resolve(pkg.dir, r); // eslint-disable-line no-param-reassign
-            }
-        }
-
-        if (isFile(x)) {
-            return x;
-        }
-
-        for (var i = 0; i < extensions.length; i++) {
-            var file = x + extensions[i];
-            if (isFile(file)) {
-                return file;
-            }
-        }
-    }
-
-    function loadpkg(dir) {
-        if (dir === '' || dir === '/') return;
-        if (process.platform === 'win32' && (/^\w:[/\\]*$/).test(dir)) {
-            return;
-        }
-        if (/[/\\]node_modules[/\\]*$/.test(dir)) return;
-
-        var pkgfile = path.join(dir, 'package.json');
-
-        if (!isFile(pkgfile)) {
-            return loadpkg(path.dirname(dir));
-        }
-
-        var body = readFileSync(pkgfile);
-
-        try {
-            var pkg = JSON.parse(body);
-        } catch (jsonErr) {}
-
-        if (pkg && opts.packageFilter) {
-            pkg = opts.packageFilter(pkg, dir);
-        }
-
-        return { pkg: pkg, dir: dir };
-    }
-
-    function loadAsDirectorySync(x) {
-        var pkgfile = path.join(x, '/package.json');
-        if (isFile(pkgfile)) {
-            try {
-                var body = readFileSync(pkgfile, 'UTF8');
-                var pkg = JSON.parse(body);
-
-                if (opts.packageFilter) {
-                    pkg = opts.packageFilter(pkg, x);
-                }
-
-                if (pkg.main) {
-                    if (pkg.main === '.' || pkg.main === './') {
-                        pkg.main = 'index';
-                    }
-                    var m = loadAsFileSync(path.resolve(x, pkg.main));
-                    if (m) return m;
-                    var n = loadAsDirectorySync(path.resolve(x, pkg.main));
-                    if (n) return n;
-                }
-            } catch (e) {}
-        }
-
-        return loadAsFileSync(path.join(x, '/index'));
-    }
-
-    function loadNodeModulesSync(x, start) {
-        var dirs = nodeModulesPaths(start, opts);
-        for (var i = 0; i < dirs.length; i++) {
-            var dir = dirs[i];
-            var m = loadAsFileSync(path.join(dir, '/', x));
-            if (m) return m;
-            var n = loadAsDirectorySync(path.join(dir, '/', x));
-            if (n) return n;
-        }
-    }
-};
-
-
-/***/ }),
-/* 818 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const onetime = __webpack_require__(771);
-const signalExit = __webpack_require__(451);
-
-module.exports = onetime(() => {
-	signalExit(() => {
-		process.stderr.write('\u001b[?25h');
-	}, {alwaysLast: true});
-});
-
-
-/***/ }),
-/* 819 */
-/***/ (function(module, exports, __webpack_require__) {
-
-module.exports = __webpack_require__(820);
-
-/***/ }),
-/* 820 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var RetryOperation = __webpack_require__(821);
-
-exports.operation = function(options) {
-  var timeouts = exports.timeouts(options);
-  return new RetryOperation(timeouts, {
-      forever: options && options.forever,
-      unref: options && options.unref
-  });
-};
-
-exports.timeouts = function(options) {
-  if (options instanceof Array) {
-    return [].concat(options);
-  }
-
-  var opts = {
-    retries: 10,
-    factor: 2,
-    minTimeout: 1 * 1000,
-    maxTimeout: Infinity,
-    randomize: false
-  };
-  for (var key in options) {
-    opts[key] = options[key];
-  }
-
-  if (opts.minTimeout > opts.maxTimeout) {
-    throw new Error('minTimeout is greater than maxTimeout');
-  }
-
-  var timeouts = [];
-  for (var i = 0; i < opts.retries; i++) {
-    timeouts.push(this.createTimeout(i, opts));
-  }
-
-  if (options && options.forever && !timeouts.length) {
-    timeouts.push(this.createTimeout(i, opts));
-  }
-
-  // sort the array numerically ascending
-  timeouts.sort(function(a,b) {
-    return a - b;
-  });
-
-  return timeouts;
-};
-
-exports.createTimeout = function(attempt, opts) {
-  var random = (opts.randomize)
-    ? (Math.random() + 1)
-    : 1;
-
-  var timeout = Math.round(random * opts.minTimeout * Math.pow(opts.factor, attempt));
-  timeout = Math.min(timeout, opts.maxTimeout);
-
-  return timeout;
-};
-
-exports.wrap = function(obj, options, methods) {
-  if (options instanceof Array) {
-    methods = options;
-    options = null;
-  }
-
-  if (!methods) {
-    methods = [];
-    for (var key in obj) {
-      if (typeof obj[key] === 'function') {
-        methods.push(key);
-      }
-    }
-  }
-
-  for (var i = 0; i < methods.length; i++) {
-    var method   = methods[i];
-    var original = obj[method];
-
-    obj[method] = function retryWrapper() {
-      var op       = exports.operation(options);
-      var args     = Array.prototype.slice.call(arguments);
-      var callback = args.pop();
-
-      args.push(function(err) {
-        if (op.retry(err)) {
-          return;
-        }
-        if (err) {
-          arguments[0] = op.mainError();
-        }
-        callback.apply(this, arguments);
-      });
-
-      op.attempt(function() {
-        original.apply(obj, args);
-      });
-    };
-    obj[method].options = options;
-  }
-};
-
-
-/***/ }),
-/* 821 */
-/***/ (function(module, exports) {
-
-function RetryOperation(timeouts, options) {
-  // Compatibility for the old (timeouts, retryForever) signature
-  if (typeof options === 'boolean') {
-    options = { forever: options };
-  }
-
-  this._timeouts = timeouts;
-  this._options = options || {};
-  this._fn = null;
-  this._errors = [];
-  this._attempts = 1;
-  this._operationTimeout = null;
-  this._operationTimeoutCb = null;
-  this._timeout = null;
-
-  if (this._options.forever) {
-    this._cachedTimeouts = this._timeouts.slice(0);
-  }
-}
-module.exports = RetryOperation;
-
-RetryOperation.prototype.stop = function() {
-  if (this._timeout) {
-    clearTimeout(this._timeout);
-  }
-
-  this._timeouts       = [];
-  this._cachedTimeouts = null;
-};
-
-RetryOperation.prototype.retry = function(err) {
-  if (this._timeout) {
-    clearTimeout(this._timeout);
-  }
-
-  if (!err) {
-    return false;
-  }
-
-  this._errors.push(err);
-
-  var timeout = this._timeouts.shift();
-  if (timeout === undefined) {
-    if (this._cachedTimeouts) {
-      // retry forever, only keep last error
-      this._errors.splice(this._errors.length - 1, this._errors.length);
-      this._timeouts = this._cachedTimeouts.slice(0);
-      timeout = this._timeouts.shift();
-    } else {
-      return false;
-    }
-  }
-
-  var self = this;
-  var timer = setTimeout(function() {
-    self._attempts++;
-
-    if (self._operationTimeoutCb) {
-      self._timeout = setTimeout(function() {
-        self._operationTimeoutCb(self._attempts);
-      }, self._operationTimeout);
-
-      if (this._options.unref) {
-          self._timeout.unref();
-      }
-    }
-
-    self._fn(self._attempts);
-  }, timeout);
-
-  if (this._options.unref) {
-      timer.unref();
-  }
-
-  return true;
-};
-
-RetryOperation.prototype.attempt = function(fn, timeoutOps) {
-  this._fn = fn;
-
-  if (timeoutOps) {
-    if (timeoutOps.timeout) {
-      this._operationTimeout = timeoutOps.timeout;
-    }
-    if (timeoutOps.cb) {
-      this._operationTimeoutCb = timeoutOps.cb;
-    }
-  }
-
-  var self = this;
-  if (this._operationTimeoutCb) {
-    this._timeout = setTimeout(function() {
-      self._operationTimeoutCb();
-    }, self._operationTimeout);
-  }
-
-  this._fn(this._attempts);
-};
-
-RetryOperation.prototype.try = function(fn) {
-  console.log('Using RetryOperation.try() is deprecated');
-  this.attempt(fn);
-};
-
-RetryOperation.prototype.start = function(fn) {
-  console.log('Using RetryOperation.start() is deprecated');
-  this.attempt(fn);
-};
-
-RetryOperation.prototype.start = RetryOperation.prototype.try;
-
-RetryOperation.prototype.errors = function() {
-  return this._errors;
-};
-
-RetryOperation.prototype.attempts = function() {
-  return this._attempts;
-};
-
-RetryOperation.prototype.mainError = function() {
-  if (this._errors.length === 0) {
-    return null;
-  }
-
-  var counts = {};
-  var mainError = null;
-  var mainErrorCount = 0;
-
-  for (var i = 0; i < this._errors.length; i++) {
-    var error = this._errors[i];
-    var message = error.message;
-    var count = (counts[message] || 0) + 1;
-
-    counts[message] = count;
-
-    if (count >= mainErrorCount) {
-      mainError = error;
-      mainErrorCount = count;
-    }
-  }
-
-  return mainError;
-};
-
-
-/***/ }),
-/* 822 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "a", function() { return SubscribeOnObservable; });
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_tslib__ = __webpack_require__(1);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__scheduler_asap__ = __webpack_require__(438);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_isNumeric__ = __webpack_require__(190);
-/** PURE_IMPORTS_START tslib,_Observable,_scheduler_asap,_util_isNumeric PURE_IMPORTS_END */
-
-
-
-
-var SubscribeOnObservable = /*@__PURE__*/ (function (_super) {
-    __WEBPACK_IMPORTED_MODULE_0_tslib__["a" /* __extends */](SubscribeOnObservable, _super);
-    function SubscribeOnObservable(source, delayTime, scheduler) {
-        if (delayTime === void 0) {
-            delayTime = 0;
-        }
-        if (scheduler === void 0) {
-            scheduler = __WEBPACK_IMPORTED_MODULE_2__scheduler_asap__["a" /* asap */];
-        }
-        var _this = _super.call(this) || this;
-        _this.source = source;
-        _this.delayTime = delayTime;
-        _this.scheduler = scheduler;
-        if (!__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_isNumeric__["a" /* isNumeric */])(delayTime) || delayTime < 0) {
-            _this.delayTime = 0;
-        }
-        if (!scheduler || typeof scheduler.schedule !== 'function') {
-            _this.scheduler = __WEBPACK_IMPORTED_MODULE_2__scheduler_asap__["a" /* asap */];
-        }
-        return _this;
-    }
-    SubscribeOnObservable.create = function (source, delay, scheduler) {
-        if (delay === void 0) {
-            delay = 0;
-        }
-        if (scheduler === void 0) {
-            scheduler = __WEBPACK_IMPORTED_MODULE_2__scheduler_asap__["a" /* asap */];
-        }
-        return new SubscribeOnObservable(source, delay, scheduler);
-    };
-    SubscribeOnObservable.dispatch = function (arg) {
-        var source = arg.source, subscriber = arg.subscriber;
-        return this.add(source.subscribe(subscriber));
-    };
-    SubscribeOnObservable.prototype._subscribe = function (subscriber) {
-        var delay = this.delayTime;
-        var source = this.source;
-        var scheduler = this.scheduler;
-        return scheduler.schedule(SubscribeOnObservable.dispatch, delay, {
-            source: source, subscriber: subscriber
-        });
-    };
-    return SubscribeOnObservable;
-}(__WEBPACK_IMPORTED_MODULE_1__Observable__["a" /* Observable */]));
-
-//# sourceMappingURL=SubscribeOnObservable.js.map
-
-
-/***/ }),
-/* 823 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = bindCallback;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__AsyncSubject__ = __webpack_require__(183);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__operators_map__ = __webpack_require__(47);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_canReportError__ = __webpack_require__(322);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_isArray__ = __webpack_require__(41);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__util_isScheduler__ = __webpack_require__(49);
-/** PURE_IMPORTS_START _Observable,_AsyncSubject,_operators_map,_util_canReportError,_util_isArray,_util_isScheduler PURE_IMPORTS_END */
-
-
-
-
-
-
-function bindCallback(callbackFunc, resultSelector, scheduler) {
-    if (resultSelector) {
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_5__util_isScheduler__["a" /* isScheduler */])(resultSelector)) {
-            scheduler = resultSelector;
-        }
-        else {
-            return function () {
-                var args = [];
-                for (var _i = 0; _i < arguments.length; _i++) {
-                    args[_i] = arguments[_i];
-                }
-                return bindCallback(callbackFunc, scheduler).apply(void 0, args).pipe(__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__operators_map__["a" /* map */])(function (args) { return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_4__util_isArray__["a" /* isArray */])(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));
-            };
-        }
-    }
-    return function () {
-        var args = [];
-        for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i] = arguments[_i];
-        }
-        var context = this;
-        var subject;
-        var params = {
-            context: context,
-            subject: subject,
-            callbackFunc: callbackFunc,
-            scheduler: scheduler,
-        };
-        return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) {
-            if (!scheduler) {
-                if (!subject) {
-                    subject = new __WEBPACK_IMPORTED_MODULE_1__AsyncSubject__["a" /* AsyncSubject */]();
-                    var handler = function () {
-                        var innerArgs = [];
-                        for (var _i = 0; _i < arguments.length; _i++) {
-                            innerArgs[_i] = arguments[_i];
-                        }
-                        subject.next(innerArgs.length <= 1 ? innerArgs[0] : innerArgs);
-                        subject.complete();
-                    };
-                    try {
-                        callbackFunc.apply(context, args.concat([handler]));
-                    }
-                    catch (err) {
-                        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_3__util_canReportError__["a" /* canReportError */])(subject)) {
-                            subject.error(err);
-                        }
-                        else {
-                            console.warn(err);
-                        }
-                    }
-                }
-                return subject.subscribe(subscriber);
-            }
-            else {
-                var state = {
-                    args: args, subscriber: subscriber, params: params,
-                };
-                return scheduler.schedule(dispatch, 0, state);
-            }
-        });
-    };
-}
-function dispatch(state) {
-    var _this = this;
-    var self = this;
-    var args = state.args, subscriber = state.subscriber, params = state.params;
-    var callbackFunc = params.callbackFunc, context = params.context, scheduler = params.scheduler;
-    var subject = params.subject;
-    if (!subject) {
-        subject = params.subject = new __WEBPACK_IMPORTED_MODULE_1__AsyncSubject__["a" /* AsyncSubject */]();
-        var handler = function () {
-            var innerArgs = [];
-            for (var _i = 0; _i < arguments.length; _i++) {
-                innerArgs[_i] = arguments[_i];
-            }
-            var value = innerArgs.length <= 1 ? innerArgs[0] : innerArgs;
-            _this.add(scheduler.schedule(dispatchNext, 0, { value: value, subject: subject }));
-        };
-        try {
-            callbackFunc.apply(context, args.concat([handler]));
-        }
-        catch (err) {
-            subject.error(err);
-        }
-    }
-    this.add(subject.subscribe(subscriber));
-}
-function dispatchNext(state) {
-    var value = state.value, subject = state.subject;
-    subject.next(value);
-    subject.complete();
-}
-function dispatchError(state) {
-    var err = state.err, subject = state.subject;
-    subject.error(err);
-}
-//# sourceMappingURL=bindCallback.js.map
-
-
-/***/ }),
-/* 824 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = bindNodeCallback;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Observable__ = __webpack_require__(12);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__AsyncSubject__ = __webpack_require__(183);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__operators_map__ = __webpack_require__(47);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__util_canReportError__ = __webpack_require__(322);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__util_isScheduler__ = __webpack_require__(49);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__util_isArray__ = __webpack_require__(41);
-/** PURE_IMPORTS_START _Observable,_AsyncSubject,_operators_map,_util_canReportError,_util_isScheduler,_util_isArray PURE_IMPORTS_END */
-
-
-
-
-
-
-function bindNodeCallback(callbackFunc, resultSelector, scheduler) {
-    if (resultSelector) {
-        if (__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_4__util_isScheduler__["a" /* isScheduler */])(resultSelector)) {
-            scheduler = resultSelector;
-        }
-        else {
-            return function () {
-                var args = [];
-                for (var _i = 0; _i < arguments.length; _i++) {
-                    args[_i] = arguments[_i];
-                }
-                return bindNodeCallback(callbackFunc, scheduler).apply(void 0, args).pipe(__webpack_require__.i(__WEBPACK_IMPORTED_MODULE_2__operators_map__["a" /* map */])(function (args) { return __webpack_require__.i(__WEBPACK_IMPORTED_MODULE_5__util_isArray__["a" /* isArray */])(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));
-            };
-        }
-    }
-    return function () {
-        var args = [];
-        for (var _i = 0; _i < arguments.length; _i++) {
-            args[_i] = arguments[_i];
-        }
-        var params = {
-            subject: undefined,
-            args: args,
-            callbackFunc: callbackFunc,
-            scheduler: scheduler,
-            context: this,
-        };
-        return new __WEBPACK_IMPORTED_MODULE_0__Observable__["a" /* Observable */](function (subscriber) {
-            var context = params.context;
-            var subject = params.subject;
-            if (!scheduler) {
-                if (!subject) {
-                    subject = params.subject = new __WEBPACK_IMPORTED_MODULE_1__AsyncSubject__["a" /* AsyncSubject */]();
-                    var handler = function () {
-                        var innerArgs = [];
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-var toString = Object.prototype.toString;
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-"use strict";
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-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__observable_timer__ = __webpack_require__(427);
-/** PURE_IMPORTS_START _scheduler_async,_audit,_observable_timer PURE_IMPORTS_END */
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-
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-function auditTime(duration, scheduler) {
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-"use strict";
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-/***/ }),
-/* 932 */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-/* harmony export (immutable) */ __webpack_exports__["a"] = toSubscriber;
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__Subscriber__ = __webpack_require__(7);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__symbol_rxSubscriber__ = __webpack_require__(321);
-/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__Observer__ = __webpack_require__(420);
-/** PURE_IMPORTS_START _Subscriber,_symbol_rxSubscriber,_Observer PURE_IMPORTS_END */
-
-
-
-function toSubscriber(nextOrObserver, error, complete) {
-    if (nextOrObserver) {
-        if (nextOrObserver instanceof __WEBPACK_IMPORTED_MODULE_0__Subscriber__["a" /* Subscriber */]) {
-            return nextOrObserver;
-        }
-        if (nextOrObserver[__WEBPACK_IMPORTED_MODULE_1__symbol_rxSubscriber__["a" /* rxSubscriber */]]) {
-            return nextOrObserver[__WEBPACK_IMPORTED_MODULE_1__symbol_rxSubscriber__["a" /* rxSubscriber */]]();
-        }
-    }
-    if (!nextOrObserver && !error && !complete) {
-        return new __WEBPACK_IMPORTED_MODULE_0__Subscriber__["a" /* Subscriber */](__WEBPACK_IMPORTED_MODULE_2__Observer__["a" /* empty */]);
-    }
-    return new __WEBPACK_IMPORTED_MODULE_0__Subscriber__["a" /* Subscriber */](nextOrObserver, error, complete);
-}
-//# sourceMappingURL=toSubscriber.js.map
-
-
-/***/ }),
-/* 933 */
-/***/ (function(module, exports) {
-
-// This is not the set of all possible signals.
-//
-// It IS, however, the set of all signals that trigger
-// an exit on either Linux or BSD systems.  Linux is a
-// superset of the signal names supported on BSD, and
-// the unknown signals just fail to register, so we can
-// catch that easily enough.
-//
-// Don't bother with SIGKILL.  It's uncatchable, which
-// means that we can't fire any callbacks anyway.
-//
-// If a user does happen to register a handler on a non-
-// fatal signal like SIGWINCH or something, and then
-// exit, it'll end up firing `process.emit('exit')`, so
-// the handler will be fired anyway.
-//
-// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
-// artificially, inherently leave the process in a
-// state from which it is not safe to try and enter JS
-// listeners.
-module.exports = [
-  'SIGABRT',
-  'SIGALRM',
-  'SIGHUP',
-  'SIGINT',
-  'SIGTERM'
-]
-
-if (process.platform !== 'win32') {
-  module.exports.push(
-    'SIGVTALRM',
-    'SIGXCPU',
-    'SIGXFSZ',
-    'SIGUSR2',
-    'SIGTRAP',
-    'SIGSYS',
-    'SIGQUIT',
-    'SIGIOT'
-    // should detect profiler and enable/disable accordingly.
-    // see #21
-    // 'SIGPROF'
-  )
-}
-
-if (process.platform === 'linux') {
-  module.exports.push(
-    'SIGIO',
-    'SIGPOLL',
-    'SIGPWR',
-    'SIGSTKFLT',
-    'SIGUNUSED'
-  )
-}
-
-
-/***/ }),
-/* 934 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const isPlainObj = __webpack_require__(738);
-
-module.exports = (obj, opts) => {
-	if (!isPlainObj(obj)) {
-		throw new TypeError('Expected a plain object');
-	}
-
-	opts = opts || {};
-
-	// DEPRECATED
-	if (typeof opts === 'function') {
-		throw new TypeError('Specify the compare function as an option instead');
-	}
-
-	const deep = opts.deep;
-	const seenInput = [];
-	const seenOutput = [];
-
-	const sortKeys = x => {
-		const seenIndex = seenInput.indexOf(x);
-
-		if (seenIndex !== -1) {
-			return seenOutput[seenIndex];
-		}
-
-		const ret = {};
-		const keys = Object.keys(x).sort(opts.compare);
-
-		seenInput.push(x);
-		seenOutput.push(ret);
-
-		for (let i = 0; i < keys.length; i++) {
-			const key = keys[i];
-			const val = x[key];
-
-			if (deep && Array.isArray(val)) {
-				const retArr = [];
-
-				for (let j = 0; j < val.length; j++) {
-					retArr[j] = isPlainObj(val[j]) ? sortKeys(val[j]) : val[j];
-				}
-
-				ret[key] = retArr;
-				continue;
-			}
-
-			ret[key] = deep && isPlainObj(val) ? sortKeys(val) : val;
-		}
-
-		return ret;
-	};
-
-	return sortKeys(obj);
-};
-
-
-/***/ }),
-/* 935 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
-Copyright 2015 Kyle E. Mitchell
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-   http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-*/
-var parse = __webpack_require__(452)
-var spdxLicenseIds = __webpack_require__(453)
-
-function valid (string) {
-  try {
-    parse(string)
-    return true
-  } catch (error) {
-    return false
-  }
-}
-
-// Common transpositions of license identifier acronyms
-var transpositions = [
-  ['APGL', 'AGPL'],
-  ['Gpl', 'GPL'],
-  ['GLP', 'GPL'],
-  ['APL', 'Apache'],
-  ['ISD', 'ISC'],
-  ['GLP', 'GPL'],
-  ['IST', 'ISC'],
-  ['Claude', 'Clause'],
-  [' or later', '+'],
-  [' International', ''],
-  ['GNU', 'GPL'],
-  ['GUN', 'GPL'],
-  ['+', ''],
-  ['GNU GPL', 'GPL'],
-  ['GNU/GPL', 'GPL'],
-  ['GNU GLP', 'GPL'],
-  ['GNU General Public License', 'GPL'],
-  ['Gnu public license', 'GPL'],
-  ['GNU Public License', 'GPL'],
-  ['GNU GENERAL PUBLIC LICENSE', 'GPL'],
-  ['MTI', 'MIT'],
-  ['Mozilla Public License', 'MPL'],
-  ['WTH', 'WTF'],
-  ['-License', '']
-]
-
-var TRANSPOSED = 0
-var CORRECT = 1
-
-// Simple corrections to nearly valid identifiers.
-var transforms = [
-  // e.g. 'mit'
-  function (argument) {
-    return argument.toUpperCase()
-  },
-  // e.g. 'MIT '
-  function (argument) {
-    return argument.trim()
-  },
-  // e.g. 'M.I.T.'
-  function (argument) {
-    return argument.replace(/\./g, '')
-  },
-  // e.g. 'Apache- 2.0'
-  function (argument) {
-    return argument.replace(/\s+/g, '')
-  },
-  // e.g. 'CC BY 4.0''
-  function (argument) {
-    return argument.replace(/\s+/g, '-')
-  },
-  // e.g. 'LGPLv2.1'
-  function (argument) {
-    return argument.replace('v', '-')
-  },
-  // e.g. 'Apache 2.0'
-  function (argument) {
-    return argument.replace(/,?\s*(\d)/, '-$1')
-  },
-  // e.g. 'GPL 2'
-  function (argument) {
-    return argument.replace(/,?\s*(\d)/, '-$1.0')
-  },
-  // e.g. 'Apache Version 2.0'
-  function (argument) {
-    return argument
-      .replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2')
-  },
-  // e.g. 'Apache Version 2'
-  function (argument) {
-    return argument
-      .replace(/,?\s*(V\.|v\.|V|v|Version|version)\s*(\d)/, '-$2.0')
-  },
-  // e.g. 'ZLIB'
-  function (argument) {
-    return argument[0].toUpperCase() + argument.slice(1)
-  },
-  // e.g. 'MPL/2.0'
-  function (argument) {
-    return argument.replace('/', '-')
-  },
-  // e.g. 'Apache 2'
-  function (argument) {
-    return argument
-      .replace(/\s*V\s*(\d)/, '-$1')
-      .replace(/(\d)$/, '$1.0')
-  },
-  // e.g. 'GPL-2.0', 'GPL-3.0'
-  function (argument) {
-    if (argument.indexOf('3.0') !== -1) {
-      return argument + '-or-later'
-    } else {
-      return argument + '-only'
-    }
-  },
-  // e.g. 'GPL-2.0-'
-  function (argument) {
-    return argument + 'only'
-  },
-  // e.g. 'GPL2'
-  function (argument) {
-    return argument.replace(/(\d)$/, '-$1.0')
-  },
-  // e.g. 'BSD 3'
-  function (argument) {
-    return argument.replace(/(-| )?(\d)$/, '-$2-Clause')
-  },
-  // e.g. 'BSD clause 3'
-  function (argument) {
-    return argument.replace(/(-| )clause(-| )(\d)/, '-$3-Clause')
-  },
-  // e.g. 'BY-NC-4.0'
-  function (argument) {
-    return 'CC-' + argument
-  },
-  // e.g. 'BY-NC'
-  function (argument) {
-    return 'CC-' + argument + '-4.0'
-  },
-  // e.g. 'Attribution-NonCommercial'
-  function (argument) {
-    return argument
-      .replace('Attribution', 'BY')
-      .replace('NonCommercial', 'NC')
-      .replace('NoDerivatives', 'ND')
-      .replace(/ (\d)/, '-$1')
-      .replace(/ ?International/, '')
-  },
-  // e.g. 'Attribution-NonCommercial'
-  function (argument) {
-    return 'CC-' +
-      argument
-        .replace('Attribution', 'BY')
-        .replace('NonCommercial', 'NC')
-        .replace('NoDerivatives', 'ND')
-        .replace(/ (\d)/, '-$1')
-        .replace(/ ?International/, '') +
-      '-4.0'
-  }
-]
-
-var licensesWithVersions = spdxLicenseIds
-  .map(function (id) {
-    var match = /^(.*)-\d+\.\d+$/.exec(id)
-    return match
-      ? [match[0], match[1]]
-      : [id, null]
-  })
-  .reduce(function (objectMap, item) {
-    var key = item[1]
-    objectMap[key] = objectMap[key] || []
-    objectMap[key].push(item[0])
-    return objectMap
-  }, {})
-
-var licensesWithOneVersion = Object.keys(licensesWithVersions)
-  .map(function makeEntries (key) {
-    return [key, licensesWithVersions[key]]
-  })
-  .filter(function identifySoleVersions (item) {
-    return (
-      // Licenses has just one valid version suffix.
-      item[1].length === 1 &&
-      item[0] !== null &&
-      // APL will be considered Apache, rather than APL-1.0
-      item[0] !== 'APL'
-    )
-  })
-  .map(function createLastResorts (item) {
-    return [item[0], item[1][0]]
-  })
-
-licensesWithVersions = undefined
-
-// If all else fails, guess that strings containing certain substrings
-// meant to identify certain licenses.
-var lastResorts = [
-  ['UNLI', 'Unlicense'],
-  ['WTF', 'WTFPL'],
-  ['2 CLAUSE', 'BSD-2-Clause'],
-  ['2-CLAUSE', 'BSD-2-Clause'],
-  ['3 CLAUSE', 'BSD-3-Clause'],
-  ['3-CLAUSE', 'BSD-3-Clause'],
-  ['AFFERO', 'AGPL-3.0-or-later'],
-  ['AGPL', 'AGPL-3.0-or-later'],
-  ['APACHE', 'Apache-2.0'],
-  ['ARTISTIC', 'Artistic-2.0'],
-  ['Affero', 'AGPL-3.0-or-later'],
-  ['BEER', 'Beerware'],
-  ['BOOST', 'BSL-1.0'],
-  ['BSD', 'BSD-2-Clause'],
-  ['CDDL', 'CDDL-1.1'],
-  ['ECLIPSE', 'EPL-1.0'],
-  ['FUCK', 'WTFPL'],
-  ['GNU', 'GPL-3.0-or-later'],
-  ['LGPL', 'LGPL-3.0-or-later'],
-  ['GPLV1', 'GPL-1.0-only'],
-  ['GPLV2', 'GPL-2.0-only'],
-  ['GPL', 'GPL-3.0-or-later'],
-  ['MIT +NO-FALSE-ATTRIBS', 'MITNFA'],
-  ['MIT', 'MIT'],
-  ['MPL', 'MPL-2.0'],
-  ['X11', 'X11'],
-  ['ZLIB', 'Zlib']
-].concat(licensesWithOneVersion)
-
-var SUBSTRING = 0
-var IDENTIFIER = 1
-
-var validTransformation = function (identifier) {
-  for (var i = 0; i < transforms.length; i++) {
-    var transformed = transforms[i](identifier).trim()
-    if (transformed !== identifier && valid(transformed)) {
-      return transformed
-    }
-  }
-  return null
-}
-
-var validLastResort = function (identifier) {
-  var upperCased = identifier.toUpperCase()
-  for (var i = 0; i < lastResorts.length; i++) {
-    var lastResort = lastResorts[i]
-    if (upperCased.indexOf(lastResort[SUBSTRING]) > -1) {
-      return lastResort[IDENTIFIER]
-    }
-  }
-  return null
-}
-
-var anyCorrection = function (identifier, check) {
-  for (var i = 0; i < transpositions.length; i++) {
-    var transposition = transpositions[i]
-    var transposed = transposition[TRANSPOSED]
-    if (identifier.indexOf(transposed) > -1) {
-      var corrected = identifier.replace(
-        transposed,
-        transposition[CORRECT]
-      )
-      var checked = check(corrected)
-      if (checked !== null) {
-        return checked
-      }
-    }
-  }
-  return null
-}
-
-module.exports = function (identifier) {
-  var validArugment = (
-    typeof identifier === 'string' &&
-    identifier.trim().length !== 0
-  )
-  if (!validArugment) {
-    throw Error('Invalid argument. Expected non-empty string.')
-  }
-  identifier = identifier.replace(/\+$/, '').trim()
-  if (valid(identifier)) {
-    return upgradeGPLs(identifier)
-  }
-  var transformed = validTransformation(identifier)
-  if (transformed !== null) {
-    return upgradeGPLs(transformed)
-  }
-  transformed = anyCorrection(identifier, function (argument) {
-    if (valid(argument)) {
-      return argument
-    }
-    return validTransformation(argument)
-  })
-  if (transformed !== null) {
-    return upgradeGPLs(transformed)
-  }
-  transformed = validLastResort(identifier)
-  if (transformed !== null) {
-    return upgradeGPLs(transformed)
-  }
-  transformed = anyCorrection(identifier, validLastResort)
-  if (transformed !== null) {
-    return upgradeGPLs(transformed)
-  }
-  return null
-}
-
-function upgradeGPLs (value) {
-  if ([
-    'GPL-1.0', 'LGPL-1.0', 'AGPL-1.0',
-    'GPL-2.0', 'LGPL-2.0', 'AGPL-2.0',
-    'LGPL-2.1'
-  ].indexOf(value) !== -1) {
-    return value + '-only'
-  } else if (['GPL-3.0', 'LGPL-3.0', 'AGPL-3.0'].indexOf(value) !== -1) {
-    return value + '-or-later'
-  } else {
-    return value
-  }
-}
-
-
-/***/ }),
-/* 936 */
-/***/ (function(module, exports) {
-
-module.exports = ["389-exception","Autoconf-exception-2.0","Autoconf-exception-3.0","Bison-exception-2.2","Bootloader-exception","CLISP-exception-2.0","Classpath-exception-2.0","DigiRule-FOSS-exception","FLTK-exception","Fawkes-Runtime-exception","Font-exception-2.0","GCC-exception-2.0","GCC-exception-3.1","LZMA-exception","Libtool-exception","Linux-syscall-note","Nokia-Qt-exception-1.1","OCCT-exception-1.0","Qwt-exception-1.0","WxWindows-exception-3.1","eCos-exception-2.0","freertos-exception-2.0","gnu-javamail-exception","i2p-gpl-java-exception","mif-exception","openvpn-openssl-exception","u-boot-exception-2.0"]
-
-/***/ }),
-/* 937 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-// The ABNF grammar in the spec is totally ambiguous.
-//
-// This parser follows the operator precedence defined in the
-// `Order of Precedence and Parentheses` section.
-
-module.exports = function (tokens) {
-  var index = 0
-
-  function hasMore () {
-    return index < tokens.length
-  }
-
-  function token () {
-    return hasMore() ? tokens[index] : null
-  }
-
-  function next () {
-    if (!hasMore()) {
-      throw new Error()
-    }
-    index++
-  }
-
-  function parseOperator (operator) {
-    var t = token()
-    if (t && t.type === 'OPERATOR' && operator === t.string) {
-      next()
-      return t.string
-    }
-  }
-
-  function parseWith () {
-    if (parseOperator('WITH')) {
-      var t = token()
-      if (t && t.type === 'EXCEPTION') {
-        next()
-        return t.string
-      }
-      throw new Error('Expected exception after `WITH`')
-    }
-  }
-
-  function parseLicenseRef () {
-    // TODO: Actually, everything is concatenated into one string
-    // for backward-compatibility but it could be better to return
-    // a nice structure.
-    var begin = index
-    var string = ''
-    var t = token()
-    if (t.type === 'DOCUMENTREF') {
-      next()
-      string += 'DocumentRef-' + t.string + ':'
-      if (!parseOperator(':')) {
-        throw new Error('Expected `:` after `DocumentRef-...`')
-      }
-    }
-    t = token()
-    if (t.type === 'LICENSEREF') {
-      next()
-      string += 'LicenseRef-' + t.string
-      return {license: string}
-    }
-    index = begin
-  }
-
-  function parseLicense () {
-    var t = token()
-    if (t && t.type === 'LICENSE') {
-      next()
-      var node = {license: t.string}
-      if (parseOperator('+')) {
-        node.plus = true
-      }
-      var exception = parseWith()
-      if (exception) {
-        node.exception = exception
-      }
-      return node
-    }
-  }
-
-  function parseParenthesizedExpression () {
-    var left = parseOperator('(')
-    if (!left) {
-      return
-    }
-
-    var expr = parseExpression()
-
-    if (!parseOperator(')')) {
-      throw new Error('Expected `)`')
-    }
-
-    return expr
-  }
-
-  function parseAtom () {
-    return (
-      parseParenthesizedExpression() ||
-      parseLicenseRef() ||
-      parseLicense()
-    )
-  }
-
-  function makeBinaryOpParser (operator, nextParser) {
-    return function parseBinaryOp () {
-      var left = nextParser()
-      if (!left) {
-        return
-      }
-
-      if (!parseOperator(operator)) {
-        return left
-      }
-
-      var right = parseBinaryOp()
-      if (!right) {
-        throw new Error('Expected expression')
-      }
-      return {
-        left: left,
-        conjunction: operator.toLowerCase(),
-        right: right
-      }
-    }
-  }
-
-  var parseAnd = makeBinaryOpParser('AND', parseAtom)
-  var parseExpression = makeBinaryOpParser('OR', parseAnd)
-
-  var node = parseExpression()
-  if (!node || hasMore()) {
-    throw new Error('Syntax error')
-  }
-  return node
-}
-
-
-/***/ }),
-/* 938 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var licenses = []
-  .concat(__webpack_require__(453))
-  .concat(__webpack_require__(939))
-var exceptions = __webpack_require__(936)
-
-module.exports = function (source) {
-  var index = 0
-
-  function hasMore () {
-    return index < source.length
-  }
-
-  // `value` can be a regexp or a string.
-  // If it is recognized, the matching source string is returned and
-  // the index is incremented. Otherwise `undefined` is returned.
-  function read (value) {
-    if (value instanceof RegExp) {
-      var chars = source.slice(index)
-      var match = chars.match(value)
-      if (match) {
-        index += match[0].length
-        return match[0]
-      }
-    } else {
-      if (source.indexOf(value, index) === index) {
-        index += value.length
-        return value
-      }
-    }
-  }
-
-  function skipWhitespace () {
-    read(/[ ]*/)
-  }
-
-  function operator () {
-    var string
-    var possibilities = ['WITH', 'AND', 'OR', '(', ')', ':', '+']
-    for (var i = 0; i < possibilities.length; i++) {
-      string = read(possibilities[i])
-      if (string) {
-        break
-      }
-    }
-
-    if (string === '+' && index > 1 && source[index - 2] === ' ') {
-      throw new Error('Space before `+`')
-    }
-
-    return string && {
-      type: 'OPERATOR',
-      string: string
-    }
-  }
-
-  function idstring () {
-    return read(/[A-Za-z0-9-.]+/)
-  }
-
-  function expectIdstring () {
-    var string = idstring()
-    if (!string) {
-      throw new Error('Expected idstring at offset ' + index)
-    }
-    return string
-  }
-
-  function documentRef () {
-    if (read('DocumentRef-')) {
-      var string = expectIdstring()
-      return {type: 'DOCUMENTREF', string: string}
-    }
-  }
-
-  function licenseRef () {
-    if (read('LicenseRef-')) {
-      var string = expectIdstring()
-      return {type: 'LICENSEREF', string: string}
-    }
-  }
-
-  function identifier () {
-    var begin = index
-    var string = idstring()
-
-    if (licenses.indexOf(string) !== -1) {
-      return {
-        type: 'LICENSE',
-        string: string
-      }
-    } else if (exceptions.indexOf(string) !== -1) {
-      return {
-        type: 'EXCEPTION',
-        string: string
-      }
-    }
-
-    index = begin
-  }
-
-  // Tries to read the next token. Returns `undefined` if no token is
-  // recognized.
-  function parseToken () {
-    // Ordering matters
-    return (
-      operator() ||
-      documentRef() ||
-      licenseRef() ||
-      identifier()
-    )
-  }
-
-  var tokens = []
-  while (hasMore()) {
-    skipWhitespace()
-    if (!hasMore()) {
-      break
-    }
-
-    var token = parseToken()
-    if (!token) {
-      throw new Error('Unexpected `' + source[index] +
-                      '` at offset ' + index)
-    }
-
-    tokens.push(token)
-  }
-  return tokens
-}
-
-
-/***/ }),
-/* 939 */
-/***/ (function(module, exports) {
-
-module.exports = ["AGPL-3.0","eCos-2.0","GFDL-1.1","GFDL-1.2","GFDL-1.3","GPL-1.0","GPL-2.0-with-autoconf-exception","GPL-2.0-with-bison-exception","GPL-2.0-with-classpath-exception","GPL-2.0-with-font-exception","GPL-2.0-with-GCC-exception","GPL-2.0","GPL-3.0-with-autoconf-exception","GPL-3.0-with-GCC-exception","GPL-3.0","LGPL-2.0","LGPL-2.1","LGPL-3.0","Nunit","StandardML-NJ","wxWindows"]
-
-/***/ }),
-/* 940 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2017 Joyent, Inc.
-
-module.exports = {
-	read: read,
-	verify: verify,
-	sign: sign,
-	signAsync: signAsync,
-	write: write,
-
-	/* Internal private API */
-	fromBuffer: fromBuffer,
-	toBuffer: toBuffer
-};
-
-var assert = __webpack_require__(16);
-var SSHBuffer = __webpack_require__(159);
-var crypto = __webpack_require__(11);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var Identity = __webpack_require__(158);
-var rfc4253 = __webpack_require__(103);
-var Signature = __webpack_require__(75);
-var utils = __webpack_require__(26);
-var Certificate = __webpack_require__(155);
-
-function verify(cert, key) {
-	/*
-	 * We always give an issuerKey, so if our verify() is being called then
-	 * there was no signature. Return false.
-	 */
-	return (false);
-}
-
-var TYPES = {
-	'user': 1,
-	'host': 2
-};
-Object.keys(TYPES).forEach(function (k) { TYPES[TYPES[k]] = k; });
-
-var ECDSA_ALGO = /^ecdsa-sha2-([^@-]+)-cert-v01@openssh.com$/;
-
-function read(buf, options) {
-	if (Buffer.isBuffer(buf))
-		buf = buf.toString('ascii');
-	var parts = buf.trim().split(/[ \t\n]+/g);
-	if (parts.length < 2 || parts.length > 3)
-		throw (new Error('Not a valid SSH certificate line'));
-
-	var algo = parts[0];
-	var data = parts[1];
-
-	data = Buffer.from(data, 'base64');
-	return (fromBuffer(data, algo));
-}
-
-function fromBuffer(data, algo, partial) {
-	var sshbuf = new SSHBuffer({ buffer: data });
-	var innerAlgo = sshbuf.readString();
-	if (algo !== undefined && innerAlgo !== algo)
-		throw (new Error('SSH certificate algorithm mismatch'));
-	if (algo === undefined)
-		algo = innerAlgo;
-
-	var cert = {};
-	cert.signatures = {};
-	cert.signatures.openssh = {};
-
-	cert.signatures.openssh.nonce = sshbuf.readBuffer();
-
-	var key = {};
-	var parts = (key.parts = []);
-	key.type = getAlg(algo);
-
-	var partCount = algs.info[key.type].parts.length;
-	while (parts.length < partCount)
-		parts.push(sshbuf.readPart());
-	assert.ok(parts.length >= 1, 'key must have at least one part');
-
-	var algInfo = algs.info[key.type];
-	if (key.type === 'ecdsa') {
-		var res = ECDSA_ALGO.exec(algo);
-		assert.ok(res !== null);
-		assert.strictEqual(res[1], parts[0].data.toString());
-	}
-
-	for (var i = 0; i < algInfo.parts.length; ++i) {
-		parts[i].name = algInfo.parts[i];
-		if (parts[i].name !== 'curve' &&
-		    algInfo.normalize !== false) {
-			var p = parts[i];
-			p.data = utils.mpNormalize(p.data);
-		}
-	}
-
-	cert.subjectKey = new Key(key);
-
-	cert.serial = sshbuf.readInt64();
-
-	var type = TYPES[sshbuf.readInt()];
-	assert.string(type, 'valid cert type');
-
-	cert.signatures.openssh.keyId = sshbuf.readString();
-
-	var principals = [];
-	var pbuf = sshbuf.readBuffer();
-	var psshbuf = new SSHBuffer({ buffer: pbuf });
-	while (!psshbuf.atEnd())
-		principals.push(psshbuf.readString());
-	if (principals.length === 0)
-		principals = ['*'];
-
-	cert.subjects = principals.map(function (pr) {
-		if (type === 'user')
-			return (Identity.forUser(pr));
-		else if (type === 'host')
-			return (Identity.forHost(pr));
-		throw (new Error('Unknown identity type ' + type));
-	});
-
-	cert.validFrom = int64ToDate(sshbuf.readInt64());
-	cert.validUntil = int64ToDate(sshbuf.readInt64());
-
-	cert.signatures.openssh.critical = sshbuf.readBuffer();
-	cert.signatures.openssh.exts = sshbuf.readBuffer();
-
-	/* reserved */
-	sshbuf.readBuffer();
-
-	var signingKeyBuf = sshbuf.readBuffer();
-	cert.issuerKey = rfc4253.read(signingKeyBuf);
-
-	/*
-	 * OpenSSH certs don't give the identity of the issuer, just their
-	 * public key. So, we use an Identity that matches anything. The
-	 * isSignedBy() function will later tell you if the key matches.
-	 */
-	cert.issuer = Identity.forHost('**');
-
-	var sigBuf = sshbuf.readBuffer();
-	cert.signatures.openssh.signature =
-	    Signature.parse(sigBuf, cert.issuerKey.type, 'ssh');
-
-	if (partial !== undefined) {
-		partial.remainder = sshbuf.remainder();
-		partial.consumed = sshbuf._offset;
-	}
-
-	return (new Certificate(cert));
-}
-
-function int64ToDate(buf) {
-	var i = buf.readUInt32BE(0) * 4294967296;
-	i += buf.readUInt32BE(4);
-	var d = new Date();
-	d.setTime(i * 1000);
-	d.sourceInt64 = buf;
-	return (d);
-}
-
-function dateToInt64(date) {
-	if (date.sourceInt64 !== undefined)
-		return (date.sourceInt64);
-	var i = Math.round(date.getTime() / 1000);
-	var upper = Math.floor(i / 4294967296);
-	var lower = Math.floor(i % 4294967296);
-	var buf = Buffer.alloc(8);
-	buf.writeUInt32BE(upper, 0);
-	buf.writeUInt32BE(lower, 4);
-	return (buf);
-}
-
-function sign(cert, key) {
-	if (cert.signatures.openssh === undefined)
-		cert.signatures.openssh = {};
-	try {
-		var blob = toBuffer(cert, true);
-	} catch (e) {
-		delete (cert.signatures.openssh);
-		return (false);
-	}
-	var sig = cert.signatures.openssh;
-	var hashAlgo = undefined;
-	if (key.type === 'rsa' || key.type === 'dsa')
-		hashAlgo = 'sha1';
-	var signer = key.createSign(hashAlgo);
-	signer.write(blob);
-	sig.signature = signer.sign();
-	return (true);
-}
-
-function signAsync(cert, signer, done) {
-	if (cert.signatures.openssh === undefined)
-		cert.signatures.openssh = {};
-	try {
-		var blob = toBuffer(cert, true);
-	} catch (e) {
-		delete (cert.signatures.openssh);
-		done(e);
-		return;
-	}
-	var sig = cert.signatures.openssh;
-
-	signer(blob, function (err, signature) {
-		if (err) {
-			done(err);
-			return;
-		}
-		try {
-			/*
-			 * This will throw if the signature isn't of a
-			 * type/algo that can be used for SSH.
-			 */
-			signature.toBuffer('ssh');
-		} catch (e) {
-			done(e);
-			return;
-		}
-		sig.signature = signature;
-		done();
-	});
-}
-
-function write(cert, options) {
-	if (options === undefined)
-		options = {};
-
-	var blob = toBuffer(cert);
-	var out = getCertType(cert.subjectKey) + ' ' + blob.toString('base64');
-	if (options.comment)
-		out = out + ' ' + options.comment;
-	return (out);
-}
-
-
-function toBuffer(cert, noSig) {
-	assert.object(cert.signatures.openssh, 'signature for openssh format');
-	var sig = cert.signatures.openssh;
-
-	if (sig.nonce === undefined)
-		sig.nonce = crypto.randomBytes(16);
-	var buf = new SSHBuffer({});
-	buf.writeString(getCertType(cert.subjectKey));
-	buf.writeBuffer(sig.nonce);
-
-	var key = cert.subjectKey;
-	var algInfo = algs.info[key.type];
-	algInfo.parts.forEach(function (part) {
-		buf.writePart(key.part[part]);
-	});
-
-	buf.writeInt64(cert.serial);
-
-	var type = cert.subjects[0].type;
-	assert.notStrictEqual(type, 'unknown');
-	cert.subjects.forEach(function (id) {
-		assert.strictEqual(id.type, type);
-	});
-	type = TYPES[type];
-	buf.writeInt(type);
-
-	if (sig.keyId === undefined) {
-		sig.keyId = cert.subjects[0].type + '_' +
-		    (cert.subjects[0].uid || cert.subjects[0].hostname);
-	}
-	buf.writeString(sig.keyId);
-
-	var sub = new SSHBuffer({});
-	cert.subjects.forEach(function (id) {
-		if (type === TYPES.host)
-			sub.writeString(id.hostname);
-		else if (type === TYPES.user)
-			sub.writeString(id.uid);
-	});
-	buf.writeBuffer(sub.toBuffer());
-
-	buf.writeInt64(dateToInt64(cert.validFrom));
-	buf.writeInt64(dateToInt64(cert.validUntil));
-
-	if (sig.critical === undefined)
-		sig.critical = Buffer.alloc(0);
-	buf.writeBuffer(sig.critical);
-
-	if (sig.exts === undefined)
-		sig.exts = Buffer.alloc(0);
-	buf.writeBuffer(sig.exts);
-
-	/* reserved */
-	buf.writeBuffer(Buffer.alloc(0));
-
-	sub = rfc4253.write(cert.issuerKey);
-	buf.writeBuffer(sub);
-
-	if (!noSig)
-		buf.writeBuffer(sig.signature.toBuffer('ssh'));
-
-	return (buf.toBuffer());
-}
-
-function getAlg(certType) {
-	if (certType === 'ssh-rsa-cert-v01@openssh.com')
-		return ('rsa');
-	if (certType === 'ssh-dss-cert-v01@openssh.com')
-		return ('dsa');
-	if (certType.match(ECDSA_ALGO))
-		return ('ecdsa');
-	if (certType === 'ssh-ed25519-cert-v01@openssh.com')
-		return ('ed25519');
-	throw (new Error('Unsupported cert type ' + certType));
-}
-
-function getCertType(key) {
-	if (key.type === 'rsa')
-		return ('ssh-rsa-cert-v01@openssh.com');
-	if (key.type === 'dsa')
-		return ('ssh-dss-cert-v01@openssh.com');
-	if (key.type === 'ecdsa')
-		return ('ecdsa-sha2-' + key.curve + '-cert-v01@openssh.com');
-	if (key.type === 'ed25519')
-		return ('ssh-ed25519-cert-v01@openssh.com');
-	throw (new Error('Unsupported key type ' + key.type));
-}
-
-
-/***/ }),
-/* 941 */
-/***/ (function(module, exports, __webpack_require__) {
-
-// Copyright 2016 Joyent, Inc.
-
-var x509 = __webpack_require__(457);
-
-module.exports = {
-	read: read,
-	verify: x509.verify,
-	sign: x509.sign,
-	write: write
-};
-
-var assert = __webpack_require__(16);
-var asn1 = __webpack_require__(66);
-var Buffer = __webpack_require__(15).Buffer;
-var algs = __webpack_require__(32);
-var utils = __webpack_require__(26);
-var Key = __webpack_require__(27);
-var PrivateKey = __webpack_require__(33);
-var pem = __webpack_require__(86);
-var Identity = __webpack_require__(158);
-var Signature = __webpack_require__(75);
-var Certificate = __webpack_require__(155);
-
-function read(buf, options) {
-	if (typeof (buf) !== 'string') {
-		assert.buffer(buf, 'buf');
-		buf = buf.toString('ascii');
-	}
-
-	var lines = buf.trim().split(/[\r\n]+/g);
-
-	var m = lines[0].match(/*JSSTYLED*/
-	    /[-]+[ ]*BEGIN CERTIFICATE[ ]*[-]+/);
-	assert.ok(m, 'invalid PEM header');
-
-	var m2 = lines[lines.length - 1].match(/*JSSTYLED*/
-	    /[-]+[ ]*END CERTIFICATE[ ]*[-]+/);
-	assert.ok(m2, 'invalid PEM footer');
-
-	var headers = {};
-	while (true) {
-		lines = lines.slice(1);
-		m = lines[0].match(/*JSSTYLED*/
-		    /^([A-Za-z0-9-]+): (.+)$/);
-		if (!m)
-			break;
-		headers[m[1].toLowerCase()] = m[2];
-	}
-
-	/* Chop off the first and last lines */
-	lines = lines.slice(0, -1).join('');
-	buf = Buffer.from(lines, 'base64');
-
-	return (x509.read(buf, options));
-}
-
-function write(cert, options) {
-	var dbuf = x509.write(cert, options);
-
-	var header = 'CERTIFICATE';
-	var tmp = dbuf.toString('base64');
-	var len = tmp.length + (tmp.length / 64) +
-	    18 + 16 + header.length*2 + 10;
-	var buf = Buffer.alloc(len);
-	var o = 0;
-	o += buf.write('-----BEGIN ' + header + '-----\n', o);
-	for (var i = 0; i < tmp.length; ) {
-		var limit = i + 64;
-		if (limit > tmp.length)
-			limit = tmp.length;
-		o += buf.write(tmp.slice(i, limit), o);
-		buf[o++] = 10;
-		i = limit;
-	}
-	o += buf.write('-----END ' + header + '-----\n', o);
-
-	return (buf.slice(0, o));
-}
-
-
-/***/ }),
-/* 942 */
-/***/ (function(module, exports) {
-
-module.exports = shift
-
-function shift (stream) {
-  var rs = stream._readableState
-  if (!rs) return null
-  return rs.objectMode ? stream.read() : stream.read(getStateLength(rs))
-}
-
-function getStateLength (state) {
-  if (state.buffer.length) {
-    // Since node 6.3.0 state.buffer is a BufferList not an array
-    if (state.buffer.head) {
-      return state.buffer.head.data.length
-    }
-
-    return state.buffer[0].length
-  }
-
-  return state.length
-}
-
-
-/***/ }),
-/* 943 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-module.exports = function (str) {
-	return encodeURIComponent(str).replace(/[!'()*]/g, function (c) {
-		return '%' + c.charCodeAt(0).toString(16).toUpperCase();
-	});
-};
-
-
-/***/ }),
-/* 944 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var resolvePkg = __webpack_require__(679);
-
-/* @private
- *
- * given the name of a descendent module this module locates and returns its
- * package.json. In addition, it provides the baseDir.
- *
- * @method pkg
- * @param {String} name
- * @param {String} dir (optional) root directory to begin resolution
- */
-module.exports = function pkg(name, dir) {
-  if (name !== './') { name += '/'; }
-
-  var packagePath = resolvePkg(name, dir);
-  if (packagePath === null) { return null; }
-
-  var thePackage = require(packagePath);
-
-  thePackage.baseDir = packagePath.slice(0, packagePath.length - 12 /* index of `/package.json` */);
-
-  return thePackage;
-};
-
-
-/***/ }),
-/* 945 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var stripAnsi = __webpack_require__(947);
-var codePointAt = __webpack_require__(607);
-var isFullwidthCodePoint = __webpack_require__(946);
-
-// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1345
-module.exports = function (str) {
-	if (typeof str !== 'string' || str.length === 0) {
-		return 0;
-	}
-
-	var width = 0;
-
-	str = stripAnsi(str);
-
-	for (var i = 0; i < str.length; i++) {
-		var code = codePointAt(str, i);
-
-		// ignore control characters
-		if (code <= 0x1f || (code >= 0x7f && code <= 0x9f)) {
-			continue;
-		}
-
-		// surrogates
-		if (code >= 0x10000) {
-			i++;
-		}
-
-		if (isFullwidthCodePoint(code)) {
-			width += 2;
-		} else {
-			width++;
-		}
-	}
-
-	return width;
-};
-
-
-/***/ }),
-/* 946 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var numberIsNan = __webpack_require__(767);
-
-module.exports = function (x) {
-	if (numberIsNan(x)) {
-		return false;
-	}
-
-	// https://github.com/nodejs/io.js/blob/cff7300a578be1b10001f2d967aaedc88aee6402/lib/readline.js#L1369
-
-	// code points are derived from:
-	// http://www.unix.org/Public/UNIDATA/EastAsianWidth.txt
-	if (x >= 0x1100 && (
-		x <= 0x115f ||  // Hangul Jamo
-		0x2329 === x || // LEFT-POINTING ANGLE BRACKET
-		0x232a === x || // RIGHT-POINTING ANGLE BRACKET
-		// CJK Radicals Supplement .. Enclosed CJK Letters and Months
-		(0x2e80 <= x && x <= 0x3247 && x !== 0x303f) ||
-		// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
-		0x3250 <= x && x <= 0x4dbf ||
-		// CJK Unified Ideographs .. Yi Radicals
-		0x4e00 <= x && x <= 0xa4c6 ||
-		// Hangul Jamo Extended-A
-		0xa960 <= x && x <= 0xa97c ||
-		// Hangul Syllables
-		0xac00 <= x && x <= 0xd7a3 ||
-		// CJK Compatibility Ideographs
-		0xf900 <= x && x <= 0xfaff ||
-		// Vertical Forms
-		0xfe10 <= x && x <= 0xfe19 ||
-		// CJK Compatibility Forms .. Small Form Variants
-		0xfe30 <= x && x <= 0xfe6b ||
-		// Halfwidth and Fullwidth Forms
-		0xff01 <= x && x <= 0xff60 ||
-		0xffe0 <= x && x <= 0xffe6 ||
-		// Kana Supplement
-		0x1b000 <= x && x <= 0x1b001 ||
-		// Enclosed Ideographic Supplement
-		0x1f200 <= x && x <= 0x1f251 ||
-		// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
-		0x20000 <= x && x <= 0x3fffd)) {
-		return true;
-	}
-
-	return false;
-}
-
-
-/***/ }),
-/* 947 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-var ansiRegex = __webpack_require__(505)();
-
-module.exports = function (str) {
-	return typeof str === 'string' ? str.replace(ansiRegex, '') : str;
-};
-
-
-/***/ }),
-/* 948 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-module.exports = () => {
-	const pattern = [
-		'[\\u001B\\u009B][[\\]()#;?]*(?:(?:(?:[a-zA-Z\\d]*(?:;[a-zA-Z\\d]*)*)?\\u0007)',
-		'(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PRZcf-ntqry=><~]))'
-	].join('|');
-
-	return new RegExp(pattern, 'g');
-};
-
-
-/***/ }),
-/* 949 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var util = __webpack_require__(3)
-var bl = __webpack_require__(592)
-var xtend = __webpack_require__(465)
-var headers = __webpack_require__(459)
-
-var Writable = __webpack_require__(102).Writable
-var PassThrough = __webpack_require__(102).PassThrough
-
-var noop = function () {}
-
-var overflow = function (size) {
-  size &= 511
-  return size && 512 - size
-}
-
-var emptyStream = function (self, offset) {
-  var s = new Source(self, offset)
-  s.end()
-  return s
-}
-
-var mixinPax = function (header, pax) {
-  if (pax.path) header.name = pax.path
-  if (pax.linkpath) header.linkname = pax.linkpath
-  if (pax.size) header.size = parseInt(pax.size, 10)
-  header.pax = pax
-  return header
-}
-
-var Source = function (self, offset) {
-  this._parent = self
-  this.offset = offset
-  PassThrough.call(this)
-}
-
-util.inherits(Source, PassThrough)
-
-Source.prototype.destroy = function (err) {
-  this._parent.destroy(err)
-}
-
-var Extract = function (opts) {
-  if (!(this instanceof Extract)) return new Extract(opts)
-  Writable.call(this, opts)
-
-  opts = opts || {}
-
-  this._offset = 0
-  this._buffer = bl()
-  this._missing = 0
-  this._partial = false
-  this._onparse = noop
-  this._header = null
-  this._stream = null
-  this._overflow = null
-  this._cb = null
-  this._locked = false
-  this._destroyed = false
-  this._pax = null
-  this._paxGlobal = null
-  this._gnuLongPath = null
-  this._gnuLongLinkPath = null
-
-  var self = this
-  var b = self._buffer
-
-  var oncontinue = function () {
-    self._continue()
-  }
-
-  var onunlock = function (err) {
-    self._locked = false
-    if (err) return self.destroy(err)
-    if (!self._stream) oncontinue()
-  }
-
-  var onstreamend = function () {
-    self._stream = null
-    var drain = overflow(self._header.size)
-    if (drain) self._parse(drain, ondrain)
-    else self._parse(512, onheader)
-    if (!self._locked) oncontinue()
-  }
-
-  var ondrain = function () {
-    self._buffer.consume(overflow(self._header.size))
-    self._parse(512, onheader)
-    oncontinue()
-  }
-
-  var onpaxglobalheader = function () {
-    var size = self._header.size
-    self._paxGlobal = headers.decodePax(b.slice(0, size))
-    b.consume(size)
-    onstreamend()
-  }
-
-  var onpaxheader = function () {
-    var size = self._header.size
-    self._pax = headers.decodePax(b.slice(0, size))
-    if (self._paxGlobal) self._pax = xtend(self._paxGlobal, self._pax)
-    b.consume(size)
-    onstreamend()
-  }
-
-  var ongnulongpath = function () {
-    var size = self._header.size
-    this._gnuLongPath = headers.decodeLongPath(b.slice(0, size), opts.filenameEncoding)
-    b.consume(size)
-    onstreamend()
-  }
-
-  var ongnulonglinkpath = function () {
-    var size = self._header.size
-    this._gnuLongLinkPath = headers.decodeLongPath(b.slice(0, size), opts.filenameEncoding)
-    b.consume(size)
-    onstreamend()
-  }
-
-  var onheader = function () {
-    var offset = self._offset
-    var header
-    try {
-      header = self._header = headers.decode(b.slice(0, 512), opts.filenameEncoding)
-    } catch (err) {
-      self.emit('error', err)
-    }
-    b.consume(512)
-
-    if (!header) {
-      self._parse(512, onheader)
-      oncontinue()
-      return
-    }
-    if (header.type === 'gnu-long-path') {
-      self._parse(header.size, ongnulongpath)
-      oncontinue()
-      return
-    }
-    if (header.type === 'gnu-long-link-path') {
-      self._parse(header.size, ongnulonglinkpath)
-      oncontinue()
-      return
-    }
-    if (header.type === 'pax-global-header') {
-      self._parse(header.size, onpaxglobalheader)
-      oncontinue()
-      return
-    }
-    if (header.type === 'pax-header') {
-      self._parse(header.size, onpaxheader)
-      oncontinue()
-      return
-    }
-
-    if (self._gnuLongPath) {
-      header.name = self._gnuLongPath
-      self._gnuLongPath = null
-    }
-
-    if (self._gnuLongLinkPath) {
-      header.linkname = self._gnuLongLinkPath
-      self._gnuLongLinkPath = null
-    }
-
-    if (self._pax) {
-      self._header = header = mixinPax(header, self._pax)
-      self._pax = null
-    }
-
-    self._locked = true
-
-    if (!header.size || header.type === 'directory') {
-      self._parse(512, onheader)
-      self.emit('entry', header, emptyStream(self, offset), onunlock)
-      return
-    }
-
-    self._stream = new Source(self, offset)
-
-    self.emit('entry', header, self._stream, onunlock)
-    self._parse(header.size, onstreamend)
-    oncontinue()
-  }
-
-  this._onheader = onheader
-  this._parse(512, onheader)
-}
-
-util.inherits(Extract, Writable)
-
-Extract.prototype.destroy = function (err) {
-  if (this._destroyed) return
-  this._destroyed = true
-
-  if (err) this.emit('error', err)
-  this.emit('close')
-  if (this._stream) this._stream.emit('close')
-}
-
-Extract.prototype._parse = function (size, onparse) {
-  if (this._destroyed) return
-  this._offset += size
-  this._missing = size
-  if (onparse === this._onheader) this._partial = false
-  this._onparse = onparse
-}
-
-Extract.prototype._continue = function () {
-  if (this._destroyed) return
-  var cb = this._cb
-  this._cb = noop
-  if (this._overflow) this._write(this._overflow, undefined, cb)
-  else cb()
-}
-
-Extract.prototype._write = function (data, enc, cb) {
-  if (this._destroyed) return
-
-  var s = this._stream
-  var b = this._buffer
-  var missing = this._missing
-  if (data.length) this._partial = true
-
-  // we do not reach end-of-chunk now. just forward it
-
-  if (data.length < missing) {
-    this._missing -= data.length
-    this._overflow = null
-    if (s) return s.write(data, cb)
-    b.append(data)
-    return cb()
-  }
-
-  // end-of-chunk. the parser should call cb.
-
-  this._cb = cb
-  this._missing = 0
-
-  var overflow = null
-  if (data.length > missing) {
-    overflow = data.slice(missing)
-    data = data.slice(0, missing)
-  }
-
-  if (s) s.end(data)
-  else b.append(data)
-
-  this._overflow = overflow
-  this._onparse()
-}
-
-Extract.prototype._final = function (cb) {
-  if (this._partial) return this.destroy(new Error('Unexpected end of data'))
-  cb()
-}
-
-module.exports = Extract
-
-
-/***/ }),
-/* 950 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var constants = __webpack_require__(651)
-var eos = __webpack_require__(173)
-var util = __webpack_require__(3)
-var alloc = __webpack_require__(380)
-var toBuffer = __webpack_require__(462)
-
-var Readable = __webpack_require__(102).Readable
-var Writable = __webpack_require__(102).Writable
-var StringDecoder = __webpack_require__(333).StringDecoder
-
-var headers = __webpack_require__(459)
-
-var DMODE = parseInt('755', 8)
-var FMODE = parseInt('644', 8)
-
-var END_OF_TAR = alloc(1024)
-
-var noop = function () {}
-
-var overflow = function (self, size) {
-  size &= 511
-  if (size) self.push(END_OF_TAR.slice(0, 512 - size))
-}
-
-function modeToType (mode) {
-  switch (mode & constants.S_IFMT) {
-    case constants.S_IFBLK: return 'block-device'
-    case constants.S_IFCHR: return 'character-device'
-    case constants.S_IFDIR: return 'directory'
-    case constants.S_IFIFO: return 'fifo'
-    case constants.S_IFLNK: return 'symlink'
-  }
-
-  return 'file'
-}
-
-var Sink = function (to) {
-  Writable.call(this)
-  this.written = 0
-  this._to = to
-  this._destroyed = false
-}
-
-util.inherits(Sink, Writable)
-
-Sink.prototype._write = function (data, enc, cb) {
-  this.written += data.length
-  if (this._to.push(data)) return cb()
-  this._to._drain = cb
-}
-
-Sink.prototype.destroy = function () {
-  if (this._destroyed) return
-  this._destroyed = true
-  this.emit('close')
-}
-
-var LinkSink = function () {
-  Writable.call(this)
-  this.linkname = ''
-  this._decoder = new StringDecoder('utf-8')
-  this._destroyed = false
-}
-
-util.inherits(LinkSink, Writable)
-
-LinkSink.prototype._write = function (data, enc, cb) {
-  this.linkname += this._decoder.write(data)
-  cb()
-}
-
-LinkSink.prototype.destroy = function () {
-  if (this._destroyed) return
-  this._destroyed = true
-  this.emit('close')
-}
-
-var Void = function () {
-  Writable.call(this)
-  this._destroyed = false
-}
-
-util.inherits(Void, Writable)
-
-Void.prototype._write = function (data, enc, cb) {
-  cb(new Error('No body allowed for this entry'))
-}
-
-Void.prototype.destroy = function () {
-  if (this._destroyed) return
-  this._destroyed = true
-  this.emit('close')
-}
-
-var Pack = function (opts) {
-  if (!(this instanceof Pack)) return new Pack(opts)
-  Readable.call(this, opts)
-
-  this._drain = noop
-  this._finalized = false
-  this._finalizing = false
-  this._destroyed = false
-  this._stream = null
-}
-
-util.inherits(Pack, Readable)
-
-Pack.prototype.entry = function (header, buffer, callback) {
-  if (this._stream) throw new Error('already piping an entry')
-  if (this._finalized || this._destroyed) return
-
-  if (typeof buffer === 'function') {
-    callback = buffer
-    buffer = null
-  }
-
-  if (!callback) callback = noop
-
-  var self = this
-
-  if (!header.size || header.type === 'symlink') header.size = 0
-  if (!header.type) header.type = modeToType(header.mode)
-  if (!header.mode) header.mode = header.type === 'directory' ? DMODE : FMODE
-  if (!header.uid) header.uid = 0
-  if (!header.gid) header.gid = 0
-  if (!header.mtime) header.mtime = new Date()
-
-  if (typeof buffer === 'string') buffer = toBuffer(buffer)
-  if (Buffer.isBuffer(buffer)) {
-    header.size = buffer.length
-    this._encode(header)
-    this.push(buffer)
-    overflow(self, header.size)
-    process.nextTick(callback)
-    return new Void()
-  }
-
-  if (header.type === 'symlink' && !header.linkname) {
-    var linkSink = new LinkSink()
-    eos(linkSink, function (err) {
-      if (err) { // stream was closed
-        self.destroy()
-        return callback(err)
-      }
-
-      header.linkname = linkSink.linkname
-      self._encode(header)
-      callback()
-    })
-
-    return linkSink
-  }
-
-  this._encode(header)
-
-  if (header.type !== 'file' && header.type !== 'contiguous-file') {
-    process.nextTick(callback)
-    return new Void()
-  }
-
-  var sink = new Sink(this)
-
-  this._stream = sink
-
-  eos(sink, function (err) {
-    self._stream = null
-
-    if (err) { // stream was closed
-      self.destroy()
-      return callback(err)
-    }
-
-    if (sink.written !== header.size) { // corrupting tar
-      self.destroy()
-      return callback(new Error('size mismatch'))
-    }
-
-    overflow(self, header.size)
-    if (self._finalizing) self.finalize()
-    callback()
-  })
-
-  return sink
-}
-
-Pack.prototype.finalize = function () {
-  if (this._stream) {
-    this._finalizing = true
-    return
-  }
-
-  if (this._finalized) return
-  this._finalized = true
-  this.push(END_OF_TAR)
-  this.push(null)
-}
-
-Pack.prototype.destroy = function (err) {
-  if (this._destroyed) return
-  this._destroyed = true
-
-  if (err) this.emit('error', err)
-  this.emit('close')
-  if (this._stream && this._stream.destroy) this._stream.destroy()
-}
-
-Pack.prototype._encode = function (header) {
-  if (!header.pax) {
-    var buf = headers.encode(header)
-    if (buf) {
-      this.push(buf)
-      return
-    }
-  }
-  this._encodePax(header)
-}
-
-Pack.prototype._encodePax = function (header) {
-  var paxHeader = headers.encodePax({
-    name: header.name,
-    linkname: header.linkname,
-    pax: header.pax
-  })
-
-  var newHeader = {
-    name: 'PaxHeader',
-    mode: header.mode,
-    uid: header.uid,
-    gid: header.gid,
-    size: paxHeader.length,
-    mtime: header.mtime,
-    type: 'pax-header',
-    linkname: header.linkname && 'PaxHeader',
-    uname: header.uname,
-    gname: header.gname,
-    devmajor: header.devmajor,
-    devminor: header.devminor
-  }
-
-  this.push(headers.encode(newHeader))
-  this.push(paxHeader)
-  overflow(this, paxHeader.length)
-
-  newHeader.size = header.size
-  newHeader.type = header.type
-  this.push(headers.encode(newHeader))
-}
-
-Pack.prototype._read = function (n) {
-  var drain = this._drain
-  this._drain = noop
-  drain()
-}
-
-module.exports = Pack
-
-
-/***/ }),
-/* 951 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-var thenify = __webpack_require__(952)
-
-module.exports = thenifyAll
-thenifyAll.withCallback = withCallback
-thenifyAll.thenify = thenify
-
-/**
- * Promisifies all the selected functions in an object.
- *
- * @param {Object} source the source object for the async functions
- * @param {Object} [destination] the destination to set all the promisified methods
- * @param {Array} [methods] an array of method names of `source`
- * @return {Object}
- * @api public
- */
-
-function thenifyAll(source, destination, methods) {
-  return promisifyAll(source, destination, methods, thenify)
-}
-
-/**
- * Promisifies all the selected functions in an object and backward compatible with callback.
- *
- * @param {Object} source the source object for the async functions
- * @param {Object} [destination] the destination to set all the promisified methods
- * @param {Array} [methods] an array of method names of `source`
- * @return {Object}
- * @api public
- */
-
-function withCallback(source, destination, methods) {
-  return promisifyAll(source, destination, methods, thenify.withCallback)
-}
-
-function promisifyAll(source, destination, methods, promisify) {
-  if (!destination) {
-    destination = {};
-    methods = Object.keys(source)
-  }
-
-  if (Array.isArray(destination)) {
-    methods = destination
-    destination = {}
-  }
-
-  if (!methods) {
-    methods = Object.keys(source)
-  }
-
-  if (typeof source === 'function') destination = promisify(source)
-
-  methods.forEach(function (name) {
-    // promisify only if it's a function
-    if (typeof source[name] === 'function') destination[name] = promisify(source[name])
-  })
-
-  // proxy the rest
-  Object.keys(source).forEach(function (name) {
-    if (deprecated(source, name)) return
-    if (destination[name]) return
-    destination[name] = source[name]
-  })
-
-  return destination
-}
-
-function deprecated(source, name) {
-  var desc = Object.getOwnPropertyDescriptor(source, name)
-  if (!desc || !desc.get) return false
-  if (desc.get.name === 'deprecated') return true
-  return false
-}
-
-
-/***/ }),
-/* 952 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-var Promise = __webpack_require__(345)
-var assert = __webpack_require__(28)
-
-module.exports = thenify
-
-/**
- * Turn async functions into promises
- *
- * @param {Function} $$__fn__$$
- * @return {Function}
- * @api public
- */
-
-function thenify($$__fn__$$, options) {
-  assert(typeof $$__fn__$$ === 'function')
-  return eval(createWrapper($$__fn__$$.name, options))
-}
-
-/**
- * Turn async functions into promises and backward compatible with callback
- *
- * @param {Function} $$__fn__$$
- * @return {Function}
- * @api public
- */
-
-thenify.withCallback = function ($$__fn__$$, options) {
-  assert(typeof $$__fn__$$ === 'function')
-  options = options || {}
-  options.withCallback = true
-  if (options.multiArgs === undefined) options.multiArgs = true
-  return eval(createWrapper($$__fn__$$.name, options))
-}
-
-function createCallback(resolve, reject, multiArgs) {
-  return function(err, value) {
-    if (err) return reject(err)
-    var length = arguments.length
-
-    if (length <= 2 || !multiArgs) return resolve(value)
-
-    if (Array.isArray(multiArgs)) {
-      var values = {}
-      for (var i = 1; i < length; i++) values[multiArgs[i - 1]] = arguments[i]
-      return resolve(values)
-    }
-
-    var values = new Array(length - 1)
-    for (var i = 1; i < length; ++i) values[i - 1] = arguments[i]
-    resolve(values)
-  }
-}
-
-function createWrapper(name, options) {
-  name = (name || '').replace(/\s|bound(?!$)/g, '')
-  options = options || {}
-  // default to true
-  var multiArgs = options.multiArgs !== undefined ? options.multiArgs : true
-  multiArgs = 'var multiArgs = ' + JSON.stringify(multiArgs) + '\n'
-
-  var withCallback = options.withCallback ?
-    'var lastType = typeof arguments[len - 1]\n'
-    + 'if (lastType === "function") return $$__fn__$$.apply(self, arguments)\n'
-   : ''
-
-  return '(function ' + name + '() {\n'
-    + 'var self = this\n'
-    + 'var len = arguments.length\n'
-    + multiArgs
-    + withCallback
-    + 'var args = new Array(len + 1)\n'
-    + 'for (var i = 0; i < len; ++i) args[i] = arguments[i]\n'
-    + 'var lastIndex = i\n'
-    + 'return new Promise(function (resolve, reject) {\n'
-      + 'args[lastIndex] = createCallback(resolve, reject, multiArgs)\n'
-      + '$$__fn__$$.apply(self, args)\n'
-    + '})\n'
-  + '})'
-}
-
-
-/***/ }),
-/* 953 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stream = __webpack_require__(23)
-
-// through
-//
-// a stream that does nothing but re-emit the input.
-// useful for aggregating a series of changing but not ending streams into one stream)
-
-exports = module.exports = through
-through.through = through
-
-//create a readable writable stream.
-
-function through (write, end, opts) {
-  write = write || function (data) { this.queue(data) }
-  end = end || function () { this.queue(null) }
-
-  var ended = false, destroyed = false, buffer = [], _ended = false
-  var stream = new Stream()
-  stream.readable = stream.writable = true
-  stream.paused = false
-
-//  stream.autoPause   = !(opts && opts.autoPause   === false)
-  stream.autoDestroy = !(opts && opts.autoDestroy === false)
-
-  stream.write = function (data) {
-    write.call(this, data)
-    return !stream.paused
-  }
-
-  function drain() {
-    while(buffer.length && !stream.paused) {
-      var data = buffer.shift()
-      if(null === data)
-        return stream.emit('end')
-      else
-        stream.emit('data', data)
-    }
-  }
-
-  stream.queue = stream.push = function (data) {
-//    console.error(ended)
-    if(_ended) return stream
-    if(data === null) _ended = true
-    buffer.push(data)
-    drain()
-    return stream
-  }
-
-  //this will be registered as the first 'end' listener
-  //must call destroy next tick, to make sure we're after any
-  //stream piped from here.
-  //this is only a problem if end is not emitted synchronously.
-  //a nicer way to do this is to make sure this is the last listener for 'end'
-
-  stream.on('end', function () {
-    stream.readable = false
-    if(!stream.writable && stream.autoDestroy)
-      process.nextTick(function () {
-        stream.destroy()
-      })
-  })
-
-  function _end () {
-    stream.writable = false
-    end.call(stream)
-    if(!stream.readable && stream.autoDestroy)
-      stream.destroy()
-  }
-
-  stream.end = function (data) {
-    if(ended) return
-    ended = true
-    if(arguments.length) stream.write(data)
-    _end() // will emit or queue
-    return stream
-  }
-
-  stream.destroy = function () {
-    if(destroyed) return
-    destroyed = true
-    ended = true
-    buffer.length = 0
-    stream.writable = stream.readable = false
-    stream.emit('close')
-    return stream
-  }
-
-  stream.pause = function () {
-    if(stream.paused) return
-    stream.paused = true
-    return stream
-  }
-
-  stream.resume = function () {
-    if(stream.paused) {
-      stream.paused = false
-      stream.emit('resume')
-    }
-    drain()
-    //may have become paused again,
-    //as drain emits 'data'.
-    if(!stream.paused)
-      stream.emit('drain')
-    return stream
-  }
-  return stream
-}
-
-
-
-/***/ }),
-/* 954 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*!
- * Tmp
- *
- * Copyright (c) 2011-2017 KARASZI Istvan <github@spam.raszi.hu>
- *
- * MIT Licensed
- */
-
-/*
- * Module dependencies.
- */
-const fs = __webpack_require__(5);
-const path = __webpack_require__(0);
-const crypto = __webpack_require__(11);
-const osTmpDir = __webpack_require__(772);
-const _c = process.binding('constants');
-
-/*
- * The working inner variables.
- */
-const
-  /**
-   * The temporary directory.
-   * @type {string}
-   */
-  tmpDir = osTmpDir(),
-
-  // the random characters to choose from
-  RANDOM_CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz',
-
-  TEMPLATE_PATTERN = /XXXXXX/,
-
-  DEFAULT_TRIES = 3,
-
-  CREATE_FLAGS = (_c.O_CREAT || _c.fs.O_CREAT) | (_c.O_EXCL || _c.fs.O_EXCL) | (_c.O_RDWR || _c.fs.O_RDWR),
-
-  EBADF = _c.EBADF || _c.os.errno.EBADF,
-  ENOENT = _c.ENOENT || _c.os.errno.ENOENT,
-
-  DIR_MODE = 448 /* 0o700 */,
-  FILE_MODE = 384 /* 0o600 */,
-
-  // this will hold the objects need to be removed on exit
-  _removeObjects = [];
-
-var
-  _gracefulCleanup = false,
-  _uncaughtException = false;
-
-/**
- * Random name generator based on crypto.
- * Adapted from http://blog.tompawlak.org/how-to-generate-random-values-nodejs-javascript
- *
- * @param {number} howMany
- * @returns {string} the generated random name
- * @private
- */
-function _randomChars(howMany) {
-  var
-    value = [],
-    rnd = null;
-
-  // make sure that we do not fail because we ran out of entropy
-  try {
-    rnd = crypto.randomBytes(howMany);
-  } catch (e) {
-    rnd = crypto.pseudoRandomBytes(howMany);
-  }
-
-  for (var i = 0; i < howMany; i++) {
-    value.push(RANDOM_CHARS[rnd[i] % RANDOM_CHARS.length]);
-  }
-
-  return value.join('');
-}
-
-/**
- * Checks whether the `obj` parameter is defined or not.
- *
- * @param {Object} obj
- * @returns {boolean} true if the object is undefined
- * @private
- */
-function _isUndefined(obj) {
-  return typeof obj === 'undefined';
-}
-
-/**
- * Parses the function arguments.
- *
- * This function helps to have optional arguments.
- *
- * @param {(Options|Function)} options
- * @param {Function} callback
- * @returns {Array} parsed arguments
- * @private
- */
-function _parseArguments(options, callback) {
-  if (typeof options == 'function') {
-    return [callback || {}, options];
-  }
-
-  if (_isUndefined(options)) {
-    return [{}, callback];
-  }
-
-  return [options, callback];
-}
-
-/**
- * Generates a new temporary name.
- *
- * @param {Object} opts
- * @returns {string} the new random name according to opts
- * @private
- */
-function _generateTmpName(opts) {
-  if (opts.name) {
-    return path.join(opts.dir || tmpDir, opts.name);
-  }
-
-  // mkstemps like template
-  if (opts.template) {
-    return opts.template.replace(TEMPLATE_PATTERN, _randomChars(6));
-  }
-
-  // prefix and postfix
-  const name = [
-    opts.prefix || 'tmp-',
-    process.pid,
-    _randomChars(12),
-    opts.postfix || ''
-  ].join('');
-
-  return path.join(opts.dir || tmpDir, name);
-}
-
-/**
- * Gets a temporary file name.
- *
- * @param {(Options|tmpNameCallback)} options options or callback
- * @param {?tmpNameCallback} callback the callback function
- */
-function tmpName(options, callback) {
-  var
-    args = _parseArguments(options, callback),
-    opts = args[0],
-    cb = args[1],
-    tries = opts.name ? 1 : opts.tries || DEFAULT_TRIES;
-
-  if (isNaN(tries) || tries < 0)
-    return cb(new Error('Invalid tries'));
-
-  if (opts.template && !opts.template.match(TEMPLATE_PATTERN))
-    return cb(new Error('Invalid template provided'));
-
-  (function _getUniqueName() {
-    const name = _generateTmpName(opts);
-
-    // check whether the path exists then retry if needed
-    fs.stat(name, function (err) {
-      if (!err) {
-        if (tries-- > 0) return _getUniqueName();
-
-        return cb(new Error('Could not get a unique tmp filename, max tries reached ' + name));
-      }
-
-      cb(null, name);
-    });
-  }());
-}
-
-/**
- * Synchronous version of tmpName.
- *
- * @param {Object} options
- * @returns {string} the generated random name
- * @throws {Error} if the options are invalid or could not generate a filename
- */
-function tmpNameSync(options) {
-  var
-    args = _parseArguments(options),
-    opts = args[0],
-    tries = opts.name ? 1 : opts.tries || DEFAULT_TRIES;
-
-  if (isNaN(tries) || tries < 0)
-    throw new Error('Invalid tries');
-
-  if (opts.template && !opts.template.match(TEMPLATE_PATTERN))
-    throw new Error('Invalid template provided');
-
-  do {
-    const name = _generateTmpName(opts);
-    try {
-      fs.statSync(name);
-    } catch (e) {
-      return name;
-    }
-  } while (tries-- > 0);
-
-  throw new Error('Could not get a unique tmp filename, max tries reached');
-}
-
-/**
- * Creates and opens a temporary file.
- *
- * @param {(Options|fileCallback)} options the config options or the callback function
- * @param {?fileCallback} callback
- */
-function file(options, callback) {
-  var
-    args = _parseArguments(options, callback),
-    opts = args[0],
-    cb = args[1];
-
-  opts.postfix = (_isUndefined(opts.postfix)) ? '.tmp' : opts.postfix;
-
-  // gets a temporary filename
-  tmpName(opts, function _tmpNameCreated(err, name) {
-    if (err) return cb(err);
-
-    // create and open the file
-    fs.open(name, CREATE_FLAGS, opts.mode || FILE_MODE, function _fileCreated(err, fd) {
-      if (err) return cb(err);
-
-      if (opts.discardDescriptor) {
-        return fs.close(fd, function _discardCallback(err) {
-          if (err) {
-            // Low probability, and the file exists, so this could be
-            // ignored.  If it isn't we certainly need to unlink the
-            // file, and if that fails too its error is more
-            // important.
-            try {
-              fs.unlinkSync(name);
-            } catch (e) {
-              if (!isENOENT(e)) {
-                err = e;
-              }
-            }
-            return cb(err);
-          }
-          cb(null, name, undefined, _prepareTmpFileRemoveCallback(name, -1, opts));
-        });
-      }
-      if (opts.detachDescriptor) {
-        return cb(null, name, fd, _prepareTmpFileRemoveCallback(name, -1, opts));
-      }
-      cb(null, name, fd, _prepareTmpFileRemoveCallback(name, fd, opts));
-    });
-  });
-}
-
-/**
- * Synchronous version of file.
- *
- * @param {Options} options
- * @returns {FileSyncObject} object consists of name, fd and removeCallback
- * @throws {Error} if cannot create a file
- */
-function fileSync(options) {
-  var
-    args = _parseArguments(options),
-    opts = args[0];
-
-  opts.postfix = opts.postfix || '.tmp';
-
-  const discardOrDetachDescriptor = opts.discardDescriptor || opts.detachDescriptor;
-  const name = tmpNameSync(opts);
-  var fd = fs.openSync(name, CREATE_FLAGS, opts.mode || FILE_MODE);
-  if (opts.discardDescriptor) {
-    fs.closeSync(fd); 
-    fd = undefined;
-  }
-
-  return {
-    name: name,
-    fd: fd,
-    removeCallback: _prepareTmpFileRemoveCallback(name, discardOrDetachDescriptor ? -1 : fd, opts)
-  };
-}
-
-/**
- * Removes files and folders in a directory recursively.
- *
- * @param {string} root
- * @private
- */
-function _rmdirRecursiveSync(root) {
-  const dirs = [root];
-
-  do {
-    var
-      dir = dirs.pop(),
-      deferred = false,
-      files = fs.readdirSync(dir);
-
-    for (var i = 0, length = files.length; i < length; i++) {
-      var
-        file = path.join(dir, files[i]),
-        stat = fs.lstatSync(file); // lstat so we don't recurse into symlinked directories
-
-      if (stat.isDirectory()) {
-        if (!deferred) {
-          deferred = true;
-          dirs.push(dir);
-        }
-        dirs.push(file);
-      } else {
-        fs.unlinkSync(file);
-      }
-    }
-
-    if (!deferred) {
-      fs.rmdirSync(dir);
-    }
-  } while (dirs.length !== 0);
-}
-
-/**
- * Creates a temporary directory.
- *
- * @param {(Options|dirCallback)} options the options or the callback function
- * @param {?dirCallback} callback
- */
-function dir(options, callback) {
-  var
-    args = _parseArguments(options, callback),
-    opts = args[0],
-    cb = args[1];
-
-  // gets a temporary filename
-  tmpName(opts, function _tmpNameCreated(err, name) {
-    if (err) return cb(err);
-
-    // create the directory
-    fs.mkdir(name, opts.mode || DIR_MODE, function _dirCreated(err) {
-      if (err) return cb(err);
-
-      cb(null, name, _prepareTmpDirRemoveCallback(name, opts));
-    });
-  });
-}
-
-/**
- * Synchronous version of dir.
- *
- * @param {Options} options
- * @returns {DirSyncObject} object consists of name and removeCallback
- * @throws {Error} if it cannot create a directory
- */
-function dirSync(options) {
-  var
-    args = _parseArguments(options),
-    opts = args[0];
-
-  const name = tmpNameSync(opts);
-  fs.mkdirSync(name, opts.mode || DIR_MODE);
-
-  return {
-    name: name,
-    removeCallback: _prepareTmpDirRemoveCallback(name, opts)
-  };
-}
-
-/**
- * Prepares the callback for removal of the temporary file.
- *
- * @param {string} name the path of the file
- * @param {number} fd file descriptor
- * @param {Object} opts
- * @returns {fileCallback}
- * @private
- */
-function _prepareTmpFileRemoveCallback(name, fd, opts) {
-  const removeCallback = _prepareRemoveCallback(function _removeCallback(fdPath) {
-    try {
-      if (0 <= fdPath[0]) {
-        fs.closeSync(fdPath[0]);
-      }
-    }
-    catch (e) {
-      // under some node/windows related circumstances, a temporary file
-      // may have not be created as expected or the file was already closed
-      // by the user, in which case we will simply ignore the error
-      if (!isEBADF(e) && !isENOENT(e)) {
-        // reraise any unanticipated error
-        throw e;
-      }
-    }
-    try {
-      fs.unlinkSync(fdPath[1]);
-    }
-    catch (e) {
-      if (!isENOENT(e)) {
-        // reraise any unanticipated error
-        throw e;
-      }
-    }
-  }, [fd, name]);
-
-  if (!opts.keep) {
-    _removeObjects.unshift(removeCallback);
-  }
-
-  return removeCallback;
-}
-
-/**
- * Prepares the callback for removal of the temporary directory.
- *
- * @param {string} name
- * @param {Object} opts
- * @returns {Function} the callback
- * @private
- */
-function _prepareTmpDirRemoveCallback(name, opts) {
-  const removeFunction = opts.unsafeCleanup ? _rmdirRecursiveSync : fs.rmdirSync.bind(fs);
-  const removeCallback = _prepareRemoveCallback(removeFunction, name);
-
-  if (!opts.keep) {
-    _removeObjects.unshift(removeCallback);
-  }
-
-  return removeCallback;
-}
-
-/**
- * Creates a guarded function wrapping the removeFunction call.
- *
- * @param {Function} removeFunction
- * @param {Object} arg
- * @returns {Function}
- * @private
- */
-function _prepareRemoveCallback(removeFunction, arg) {
-  var called = false;
-
-  return function _cleanupCallback(next) {
-    if (!called) {
-      const index = _removeObjects.indexOf(_cleanupCallback);
-      if (index >= 0) {
-        _removeObjects.splice(index, 1);
-      }
-
-      called = true;
-      removeFunction(arg);
-    }
-
-    if (next) next(null);
-  };
-}
-
-/**
- * The garbage collector.
- *
- * @private
- */
-function _garbageCollector() {
-  if (_uncaughtException && !_gracefulCleanup) {
-    return;
-  }
-
-  // the function being called removes itself from _removeObjects,
-  // loop until _removeObjects is empty
-  while (_removeObjects.length) {
-    try {
-      _removeObjects[0].call(null);
-    } catch (e) {
-      // already removed?
-    }
-  }
-}
-
-/**
- * Helper for testing against EBADF to compensate changes made to Node 7.x under Windows.
- */
-function isEBADF(error) {
-  return isExpectedError(error, -EBADF, 'EBADF');
-}
-
-/**
- * Helper for testing against ENOENT to compensate changes made to Node 7.x under Windows.
- */
-function isENOENT(error) {
-  return isExpectedError(error, -ENOENT, 'ENOENT');
-}
-
-/**
- * Helper to determine whether the expected error code matches the actual code and errno,
- * which will differ between the supported node versions.
- *
- * - Node >= 7.0:
- *   error.code {String}
- *   error.errno {String|Number} any numerical value will be negated
- *
- * - Node >= 6.0 < 7.0:
- *   error.code {String}
- *   error.errno {Number} negated
- *
- * - Node >= 4.0 < 6.0: introduces SystemError
- *   error.code {String}
- *   error.errno {Number} negated
- *
- * - Node >= 0.10 < 4.0:
- *   error.code {Number} negated
- *   error.errno n/a
- */
-function isExpectedError(error, code, errno) {
-  return error.code == code || error.code == errno;
-}
-
-/**
- * Sets the graceful cleanup.
- *
- * Also removes the created files and directories when an uncaught exception occurs.
- */
-function setGracefulCleanup() {
-  _gracefulCleanup = true;
-}
-
-const version = process.versions.node.split('.').map(function (value) {
-  return parseInt(value, 10);
-});
-
-if (version[0] === 0 && (version[1] < 9 || version[1] === 9 && version[2] < 5)) {
-  process.addListener('uncaughtException', function _uncaughtExceptionThrown(err) {
-    _uncaughtException = true;
-    _garbageCollector();
-
-    throw err;
-  });
-}
-
-process.addListener('exit', function _exit(code) {
-  if (code) _uncaughtException = true;
-  _garbageCollector();
-});
-
-/**
- * Configuration options.
- *
- * @typedef {Object} Options
- * @property {?number} tries the number of tries before give up the name generation
- * @property {?string} template the "mkstemp" like filename template
- * @property {?string} name fix name
- * @property {?string} dir the tmp directory to use
- * @property {?string} prefix prefix for the generated name
- * @property {?string} postfix postfix for the generated name
- */
-
-/**
- * @typedef {Object} FileSyncObject
- * @property {string} name the name of the file
- * @property {string} fd the file descriptor
- * @property {fileCallback} removeCallback the callback function to remove the file
- */
-
-/**
- * @typedef {Object} DirSyncObject
- * @property {string} name the name of the directory
- * @property {fileCallback} removeCallback the callback function to remove the directory
- */
-
-/**
- * @callback tmpNameCallback
- * @param {?Error} err the error object if anything goes wrong
- * @param {string} name the temporary file name
- */
-
-/**
- * @callback fileCallback
- * @param {?Error} err the error object if anything goes wrong
- * @param {string} name the temporary file name
- * @param {number} fd the file descriptor
- * @param {cleanupCallback} fn the cleanup callback function
- */
-
-/**
- * @callback dirCallback
- * @param {?Error} err the error object if anything goes wrong
- * @param {string} name the temporary file name
- * @param {cleanupCallback} fn the cleanup callback function
- */
-
-/**
- * Removes the temporary created file or directory.
- *
- * @callback cleanupCallback
- * @param {simpleCallback} [next] function to call after entry was removed
- */
-
-/**
- * Callback function for function composition.
- * @see {@link https://github.com/raszi/node-tmp/issues/57|raszi/node-tmp#57}
- *
- * @callback simpleCallback
- */
-
-// exporting all the needed methods
-module.exports.tmpdir = tmpDir;
-
-module.exports.dir = dir;
-module.exports.dirSync = dirSync;
-
-module.exports.file = file;
-module.exports.fileSync = fileSync;
-
-module.exports.tmpName = tmpName;
-module.exports.tmpNameSync = tmpNameSync;
-
-module.exports.setGracefulCleanup = setGracefulCleanup;
-
-
-/***/ }),
-/* 955 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var net = __webpack_require__(164)
-  , tls = __webpack_require__(467)
-  , http = __webpack_require__(87)
-  , https = __webpack_require__(195)
-  , events = __webpack_require__(77)
-  , assert = __webpack_require__(28)
-  , util = __webpack_require__(3)
-  , Buffer = __webpack_require__(45).Buffer
-  ;
-
-exports.httpOverHttp = httpOverHttp
-exports.httpsOverHttp = httpsOverHttp
-exports.httpOverHttps = httpOverHttps
-exports.httpsOverHttps = httpsOverHttps
-
-
-function httpOverHttp(options) {
-  var agent = new TunnelingAgent(options)
-  agent.request = http.request
-  return agent
-}
-
-function httpsOverHttp(options) {
-  var agent = new TunnelingAgent(options)
-  agent.request = http.request
-  agent.createSocket = createSecureSocket
-  agent.defaultPort = 443
-  return agent
-}
-
-function httpOverHttps(options) {
-  var agent = new TunnelingAgent(options)
-  agent.request = https.request
-  return agent
-}
-
-function httpsOverHttps(options) {
-  var agent = new TunnelingAgent(options)
-  agent.request = https.request
-  agent.createSocket = createSecureSocket
-  agent.defaultPort = 443
-  return agent
-}
-
-
-function TunnelingAgent(options) {
-  var self = this
-  self.options = options || {}
-  self.proxyOptions = self.options.proxy || {}
-  self.maxSockets = self.options.maxSockets || http.Agent.defaultMaxSockets
-  self.requests = []
-  self.sockets = []
-
-  self.on('free', function onFree(socket, host, port) {
-    for (var i = 0, len = self.requests.length; i < len; ++i) {
-      var pending = self.requests[i]
-      if (pending.host === host && pending.port === port) {
-        // Detect the request to connect same origin server,
-        // reuse the connection.
-        self.requests.splice(i, 1)
-        pending.request.onSocket(socket)
-        return
-      }
-    }
-    socket.destroy()
-    self.removeSocket(socket)
-  })
-}
-util.inherits(TunnelingAgent, events.EventEmitter)
-
-TunnelingAgent.prototype.addRequest = function addRequest(req, options) {
-  var self = this
-
-   // Legacy API: addRequest(req, host, port, path)
-  if (typeof options === 'string') {
-    options = {
-      host: options,
-      port: arguments[2],
-      path: arguments[3]
-    };
-  }
-
-  if (self.sockets.length >= this.maxSockets) {
-    // We are over limit so we'll add it to the queue.
-    self.requests.push({host: options.host, port: options.port, request: req})
-    return
-  }
-
-  // If we are under maxSockets create a new one.
-  self.createConnection({host: options.host, port: options.port, request: req})
-}
-
-TunnelingAgent.prototype.createConnection = function createConnection(pending) {
-  var self = this
-
-  self.createSocket(pending, function(socket) {
-    socket.on('free', onFree)
-    socket.on('close', onCloseOrRemove)
-    socket.on('agentRemove', onCloseOrRemove)
-    pending.request.onSocket(socket)
-
-    function onFree() {
-      self.emit('free', socket, pending.host, pending.port)
-    }
-
-    function onCloseOrRemove(err) {
-      self.removeSocket(socket)
-      socket.removeListener('free', onFree)
-      socket.removeListener('close', onCloseOrRemove)
-      socket.removeListener('agentRemove', onCloseOrRemove)
-    }
-  })
-}
-
-TunnelingAgent.prototype.createSocket = function createSocket(options, cb) {
-  var self = this
-  var placeholder = {}
-  self.sockets.push(placeholder)
-
-  var connectOptions = mergeOptions({}, self.proxyOptions,
-    { method: 'CONNECT'
-    , path: options.host + ':' + options.port
-    , agent: false
-    }
-  )
-  if (connectOptions.proxyAuth) {
-    connectOptions.headers = connectOptions.headers || {}
-    connectOptions.headers['Proxy-Authorization'] = 'Basic ' +
-        Buffer.from(connectOptions.proxyAuth).toString('base64')
-  }
-
-  debug('making CONNECT request')
-  var connectReq = self.request(connectOptions)
-  connectReq.useChunkedEncodingByDefault = false // for v0.6
-  connectReq.once('response', onResponse) // for v0.6
-  connectReq.once('upgrade', onUpgrade)   // for v0.6
-  connectReq.once('connect', onConnect)   // for v0.7 or later
-  connectReq.once('error', onError)
-  connectReq.end()
-
-  function onResponse(res) {
-    // Very hacky. This is necessary to avoid http-parser leaks.
-    res.upgrade = true
-  }
-
-  function onUpgrade(res, socket, head) {
-    // Hacky.
-    process.nextTick(function() {
-      onConnect(res, socket, head)
-    })
-  }
-
-  function onConnect(res, socket, head) {
-    connectReq.removeAllListeners()
-    socket.removeAllListeners()
-
-    if (res.statusCode === 200) {
-      assert.equal(head.length, 0)
-      debug('tunneling connection has established')
-      self.sockets[self.sockets.indexOf(placeholder)] = socket
-      cb(socket)
-    } else {
-      debug('tunneling socket could not be established, statusCode=%d', res.statusCode)
-      var error = new Error('tunneling socket could not be established, ' + 'statusCode=' + res.statusCode)
-      error.code = 'ECONNRESET'
-      options.request.emit('error', error)
-      self.removeSocket(placeholder)
-    }
-  }
-
-  function onError(cause) {
-    connectReq.removeAllListeners()
-
-    debug('tunneling socket could not be established, cause=%s\n', cause.message, cause.stack)
-    var error = new Error('tunneling socket could not be established, ' + 'cause=' + cause.message)
-    error.code = 'ECONNRESET'
-    options.request.emit('error', error)
-    self.removeSocket(placeholder)
-  }
-}
-
-TunnelingAgent.prototype.removeSocket = function removeSocket(socket) {
-  var pos = this.sockets.indexOf(socket)
-  if (pos === -1) return
-
-  this.sockets.splice(pos, 1)
-
-  var pending = this.requests.shift()
-  if (pending) {
-    // If we have pending requests and a socket gets closed a new one
-    // needs to be created to take over in the pool for the one that closed.
-    this.createConnection(pending)
-  }
-}
-
-function createSecureSocket(options, cb) {
-  var self = this
-  TunnelingAgent.prototype.createSocket.call(self, options, function(socket) {
-    // 0 is dummy port for v0.6
-    var secureSocket = tls.connect(0, mergeOptions({}, self.options,
-      { servername: options.host
-      , socket: socket
-      }
-    ))
-    self.sockets[self.sockets.indexOf(socket)] = secureSocket
-    cb(secureSocket)
-  })
-}
-
-
-function mergeOptions(target) {
-  for (var i = 1, len = arguments.length; i < len; ++i) {
-    var overrides = arguments[i]
-    if (typeof overrides === 'object') {
-      var keys = Object.keys(overrides)
-      for (var j = 0, keyLen = keys.length; j < keyLen; ++j) {
-        var k = keys[j]
-        if (overrides[k] !== undefined) {
-          target[k] = overrides[k]
-        }
-      }
-    }
-  }
-  return target
-}
-
-
-var debug
-if (process.env.NODE_DEBUG && /\btunnel\b/.test(process.env.NODE_DEBUG)) {
-  debug = function() {
-    var args = Array.prototype.slice.call(arguments)
-    if (typeof args[0] === 'string') {
-      args[0] = 'TUNNEL: ' + args[0]
-    } else {
-      args.unshift('TUNNEL:')
-    }
-    console.error.apply(console, args)
-  }
-} else {
-  debug = function() {}
-}
-exports.debug = debug // for test
-
-
-/***/ }),
-/* 956 */
-/***/ (function(module, exports, __webpack_require__) {
-
-
-/**
- * For Node.js, simply re-export the core `util.deprecate` function.
- */
-
-module.exports = __webpack_require__(3).deprecate;
-
-
-/***/ }),
-/* 957 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var rng = __webpack_require__(464);
-var bytesToUuid = __webpack_require__(463);
-
-// **`v1()` - Generate time-based UUID**
-//
-// Inspired by https://github.com/LiosK/UUID.js
-// and http://docs.python.org/library/uuid.html
-
-var _nodeId;
-var _clockseq;
-
-// Previous uuid creation time
-var _lastMSecs = 0;
-var _lastNSecs = 0;
-
-// See https://github.com/broofa/node-uuid for API details
-function v1(options, buf, offset) {
-  var i = buf && offset || 0;
-  var b = buf || [];
-
-  options = options || {};
-  var node = options.node || _nodeId;
-  var clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq;
-
-  // node and clockseq need to be initialized to random values if they're not
-  // specified.  We do this lazily to minimize issues related to insufficient
-  // system entropy.  See #189
-  if (node == null || clockseq == null) {
-    var seedBytes = rng();
-    if (node == null) {
-      // Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
-      node = _nodeId = [
-        seedBytes[0] | 0x01,
-        seedBytes[1], seedBytes[2], seedBytes[3], seedBytes[4], seedBytes[5]
-      ];
-    }
-    if (clockseq == null) {
-      // Per 4.2.2, randomize (14 bit) clockseq
-      clockseq = _clockseq = (seedBytes[6] << 8 | seedBytes[7]) & 0x3fff;
-    }
-  }
-
-  // UUID timestamps are 100 nano-second units since the Gregorian epoch,
-  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
-  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
-  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
-  var msecs = options.msecs !== undefined ? options.msecs : new Date().getTime();
-
-  // Per 4.2.1.2, use count of uuid's generated during the current clock
-  // cycle to simulate higher resolution clock
-  var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1;
-
-  // Time since last uuid creation (in msecs)
-  var dt = (msecs - _lastMSecs) + (nsecs - _lastNSecs)/10000;
-
-  // Per 4.2.1.2, Bump clockseq on clock regression
-  if (dt < 0 && options.clockseq === undefined) {
-    clockseq = clockseq + 1 & 0x3fff;
-  }
-
-  // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
-  // time interval
-  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {
-    nsecs = 0;
-  }
-
-  // Per 4.2.1.2 Throw error if too many uuids are requested
-  if (nsecs >= 10000) {
-    throw new Error('uuid.v1(): Can\'t create more than 10M uuids/sec');
-  }
-
-  _lastMSecs = msecs;
-  _lastNSecs = nsecs;
-  _clockseq = clockseq;
-
-  // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
-  msecs += 12219292800000;
-
-  // `time_low`
-  var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
-  b[i++] = tl >>> 24 & 0xff;
-  b[i++] = tl >>> 16 & 0xff;
-  b[i++] = tl >>> 8 & 0xff;
-  b[i++] = tl & 0xff;
-
-  // `time_mid`
-  var tmh = (msecs / 0x100000000 * 10000) & 0xfffffff;
-  b[i++] = tmh >>> 8 & 0xff;
-  b[i++] = tmh & 0xff;
-
-  // `time_high_and_version`
-  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
-  b[i++] = tmh >>> 16 & 0xff;
-
-  // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
-  b[i++] = clockseq >>> 8 | 0x80;
-
-  // `clock_seq_low`
-  b[i++] = clockseq & 0xff;
-
-  // `node`
-  for (var n = 0; n < 6; ++n) {
-    b[i + n] = node[n];
-  }
-
-  return buf ? buf : bytesToUuid(b);
-}
-
-module.exports = v1;
-
-
-/***/ }),
-/* 958 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var rng = __webpack_require__(464);
-var bytesToUuid = __webpack_require__(463);
-
-function v4(options, buf, offset) {
-  var i = buf && offset || 0;
-
-  if (typeof(options) == 'string') {
-    buf = options === 'binary' ? new Array(16) : null;
-    options = null;
-  }
-  options = options || {};
-
-  var rnds = options.random || (options.rng || rng)();
-
-  // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
-  rnds[6] = (rnds[6] & 0x0f) | 0x40;
-  rnds[8] = (rnds[8] & 0x3f) | 0x80;
-
-  // Copy bytes to buffer, if provided
-  if (buf) {
-    for (var ii = 0; ii < 16; ++ii) {
-      buf[i + ii] = rnds[ii];
-    }
-  }
-
-  return buf || bytesToUuid(rnds);
-}
-
-module.exports = v4;
-
-
-/***/ }),
-/* 959 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var parse = __webpack_require__(452);
-var correct = __webpack_require__(935);
-
-var genericWarning = (
-  'license should be ' +
-  'a valid SPDX license expression (without "LicenseRef"), ' +
-  '"UNLICENSED", or ' +
-  '"SEE LICENSE IN <filename>"'
-);
-
-var fileReferenceRE = /^SEE LICEN[CS]E IN (.+)$/;
-
-function startsWith(prefix, string) {
-  return string.slice(0, prefix.length) === prefix;
-}
-
-function usesLicenseRef(ast) {
-  if (ast.hasOwnProperty('license')) {
-    var license = ast.license;
-    return (
-      startsWith('LicenseRef', license) ||
-      startsWith('DocumentRef', license)
-    );
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n=i[t],s=r[n];e.call(null,s,n)}else throw Error("non exhaustive match")}exports.forEach=forEach;function isString(r){return typeof r=="string"}exports.isString=isString;function isUndefined(r){return r===void 0}exports.isUndefined=isUndefined;function isFunction(r){return r instanceof Function}exports.isFunction=isFunction;function drop(r,e){return e===void 0&&(e=1),r.slice(e,r.length)}exports.drop=drop;function dropRight(r,e){return e===void 0&&(e=1),r.slice(0,r.length-e)}exports.dropRight=dropRight;function filter(r,e){var t=[];if(Array.isArray(r))for(var i=0;i<r.length;i++){var n=r[i];e.call(null,n)&&t.push(n)}return t}exports.filter=filter;function reject(r,e){return filter(r,function(t){return!e(t)})}exports.reject=reject;function pick(r,e){for(var t=Object.keys(r),i={},n=0;n<t.length;n++){var s=t[n],o=r[s];e(o)&&(i[s]=o)}return i}exports.pick=pick;function has(r,e){return isObject(r)?r.hasOwnProperty(e):!1}exports.has=has;function contains(r,e){return find(r,function(t){return t===e})!==void 0}exports.contains=contains;function cloneArr(r){for(var e=[],t=0;t<r.length;t++)e.push(r[t]);return e}exports.cloneArr=cloneArr;function cloneObj(r){var e={};for(var t in r)Object.prototype.hasOwnProperty.call(r,t)&&(e[t]=r[t]);return e}exports.cloneObj=cloneObj;function find(r,e){for(var t=0;t<r.length;t++){var i=r[t];if(e.call(null,i))return i}}exports.find=find;function findAll(r,e){for(var t=[],i=0;i<r.length;i++){var n=r[i];e.call(null,n)&&t.push(n)}return t}exports.findAll=findAll;function reduce(r,e,t){for(var i=Array.isArray(r),n=i?r:values(r),s=i?[]:keys(r),o=t,a=0;a<n.length;a++)o=e.call(null,o,n[a],i?a:s[a]);return o}exports.reduce=reduce;function compact(r){return reject(r,function(e){return e==null})}exports.compact=compact;function uniq(r,e){e===void 0&&(e=function(i){return i});var t=[];return reduce(r,function(i,n){var s=e(n);return contains(t,s)?i:(t.push(s),i.concat(n))},[])}exports.uniq=uniq;function partial(r){for(var e=[],t=1;t<arguments.length;t++)e[t-1]=arguments[t];var i=[null],n=i.concat(e);return Function.bind.apply(r,n)}exports.partial=partial;function isArray(r){return Array.isArray(r)}exports.isArray=isArray;function isRegExp(r){return r instanceof RegExp}exports.isRegExp=isRegExp;function isObject(r){return r instanceof Object}exports.isObject=isObject;function every(r,e){for(var t=0;t<r.length;t++)if(!e(r[t],t))return!1;return!0}exports.every=every;function difference(r,e){return reject(r,function(t){return contains(e,t)})}exports.difference=difference;function some(r,e){for(var t=0;t<r.length;t++)if(e(r[t]))return!0;return!1}exports.some=some;function indexOf(r,e){for(var t=0;t<r.length;t++)if(r[t]===e)return t;return-1}exports.indexOf=indexOf;function sortBy(r,e){var t=cloneArr(r);return t.sort(function(i,n){return e(i)-e(n)}),t}exports.sortBy=sortBy;function zipObject(r,e){if(r.length!==e.length)throw Error("can't zipObject with different number of keys and values!");for(var t={},i=0;i<r.length;i++)t[r[i]]=e[i];return t}exports.zipObject=zipObject;function assign(r){for(var e=[],t=1;t<arguments.length;t++)e[t-1]=arguments[t];for(var i=0;i<e.length;i++)for(var n=e[i],s=keys(n),o=0;o<s.length;o++){var a=s[o];r[a]=n[a]}return r}exports.assign=assign;function assignNoOverwrite(r){for(var e=[],t=1;t<arguments.length;t++)e[t-1]=arguments[t];for(var i=0;i<e.length;i++)for(var n=e[i],s=keys(n),o=0;o<s.length;o++){var a=s[o];has(r,a)||(r[a]=n[a])}return r}exports.assignNoOverwrite=assignNoOverwrite;function defaults(){for(var r=[],e=0;e<arguments.length;e++)r[e]=arguments[e];return assignNoOverwrite.apply(void 0,__spreadArray([{}],r,!1))}exports.defaults=defaults;function groupBy(r,e){var t={};return forEach(r,function(i){var n=e(i),s=t[n];s?s.push(i):t[n]=[i]}),t}exports.groupBy=groupBy;function merge(r,e){for(var t=cloneObj(r),i=keys(e),n=0;n<i.length;n++){var s=i[n],o=e[s];t[s]=o}return t}exports.merge=merge;function NOOP(){}exports.NOOP=NOOP;function IDENTITY(r){return r}exports.IDENTITY=IDENTITY;function packArray(r){for(var e=[],t=0;t<r.length;t++){var i=r[t];e.push(i!==void 0?i:void 0)}return e}exports.packArray=packArray;function PRINT_ERROR(r){console&&console.error&&console.error("Error: "+r)}exports.PRINT_ERROR=PRINT_ERROR;function PRINT_WARNING(r){console&&console.warn&&console.warn("Warning: "+r)}exports.PRINT_WARNING=PRINT_WARNING;function isES2015MapSupported(){return typeof Map=="function"}exports.isES2015MapSupported=isES2015MapSupported;function peek(r){return r[r.length-1]}exports.peek=peek;function timer(r){var e=new Date().getTime(),t=r(),i=new Date().getTime(),n=i-e;return{time:n,value:t}}exports.timer=timer;function toFastProperties(toBecomeFast){function FakeConstructor(){}FakeConstructor.prototype=toBecomeFast;var fakeInstance=new FakeConstructor;function fakeAccess(){return typeof fakeInstance.bar}return fakeAccess(),fakeAccess(),toBecomeFast;eval(toBecomeFast)}exports.toFastProperties=toFastProperties;function upperFirst(r){if(!r)return r;var e=getCharacterFromCodePointAt(r,0);return e.toUpperCase()+r.substring(e.length)}exports.upperFirst=upperFirst;var surrogatePairPattern=/[\uD800-\uDBFF][\uDC00-\uDFFF]/;function getCharacterFromCodePointAt(r,e){var t=r.substring(e,e+1);return surrogatePairPattern.test(t)?t:r[e]}});var VI=w((LY,zI)=>{(function(r,e){typeof define=="function"&&define.amd?define([],e):typeof zI=="object"&&zI.exports?zI.exports=e():r.regexpToAst=e()})(typeof self<"u"?self:LY,function(){function r(){}r.prototype.saveState=function(){return{idx:this.idx,input:this.input,groupIdx:this.groupIdx}},r.prototype.restoreState=function(p){this.idx=p.idx,this.input=p.input,this.groupIdx=p.groupIdx},r.prototype.pattern=function(p){this.idx=0,this.input=p,this.groupIdx=0,this.consumeChar("/");var C=this.disjunction();this.consumeChar("/");for(var y={type:"Flags",loc:{begin:this.idx,end:p.length},global:!1,ignoreCase:!1,multiLine:!1,unicode:!1,sticky:!1};this.isRegExpFlag();)switch(this.popChar()){case"g":o(y,"global");break;case"i":o(y,"ignoreCase");break;case"m":o(y,"multiLine");break;case"u":o(y,"unicode");break;case"y":o(y,"sticky");break}if(this.idx!==this.input.length)throw Error("Redundant input: "+this.input.substring(this.idx));return{type:"Pattern",flags:y,value:C,loc:this.loc(0)}},r.prototype.disjunction=function(){var p=[],C=this.idx;for(p.push(this.alternative());this.peekChar()==="|";)this.consumeChar("|"),p.push(this.alternative());return{type:"Disjunction",value:p,loc:this.loc(C)}},r.prototype.alternative=function(){for(var p=[],C=this.idx;this.isTerm();)p.push(this.term());return{type:"Alternative",value:p,loc:this.loc(C)}},r.prototype.term=function(){return this.isAssertion()?this.assertion():this.atom()},r.prototype.assertion=function(){var p=this.idx;switch(this.popChar()){case"^":return{type:"StartAnchor",loc:this.loc(p)};case"$":return{type:"EndAnchor",loc:this.loc(p)};case"\\":switch(this.popChar()){case"b":return{type:"WordBoundary",loc:this.loc(p)};case"B":return{type:"NonWordBoundary",loc:this.loc(p)}}throw Error("Invalid Assertion Escape");case"(":this.consumeChar("?");var C;switch(this.popChar()){case"=":C="Lookahead";break;case"!":C="NegativeLookahead";break}a(C);var y=this.disjunction();return this.consumeChar(")"),{type:C,value:y,loc:this.loc(p)}}l()},r.prototype.quantifier=function(p){var C,y=this.idx;switch(this.popChar()){case"*":C={atLeast:0,atMost:1/0};break;case"+":C={atLeast:1,atMost:1/0};break;case"?":C={atLeast:0,atMost:1};break;case"{":var B=this.integerIncludingZero();switch(this.popChar()){case"}":C={atLeast:B,atMost:B};break;case",":var v;this.isDigit()?(v=this.integerIncludingZero(),C={atLeast:B,atMost:v}):C={atLeast:B,atMost:1/0},this.consumeChar("}");break}if(p===!0&&C===void 0)return;a(C);break}if(!(p===!0&&C===void 0))return a(C),this.peekChar(0)==="?"?(this.consumeChar("?"),C.greedy=!1):C.greedy=!0,C.type="Quantifier",C.loc=this.loc(y),C},r.prototype.atom=function(){var p,C=this.idx;switch(this.peekChar()){case".":p=this.dotAll();break;case"\\":p=this.atomEscape();break;case"[":p=this.characterClass();break;case"(":p=this.group();break}return p===void 0&&this.isPatternCharacter()&&(p=this.patternCharacter()),a(p),p.loc=this.loc(C),this.isQuantifier()&&(p.quantifier=this.quantifier()),p},r.prototype.dotAll=function(){return this.consumeChar("."),{type:"Set",complement:!0,value:[n(`
+`),n("\r"),n("\u2028"),n("\u2029")]}},r.prototype.atomEscape=function(){switch(this.consumeChar("\\"),this.peekChar()){case"1":case"2":case"3":case"4":case"5":case"6":case"7":case"8":case"9":return this.decimalEscapeAtom();case"d":case"D":case"s":case"S":case"w":case"W":return this.characterClassEscape();case"f":case"n":case"r":case"t":case"v":return this.controlEscapeAtom();case"c":return this.controlLetterEscapeAtom();case"0":return this.nulCharacterAtom();case"x":return this.hexEscapeSequenceAtom();case"u":return this.regExpUnicodeEscapeSequenceAtom();default:return this.identityEscapeAtom()}},r.prototype.decimalEscapeAtom=function(){var p=this.positiveInteger();return{type:"GroupBackReference",value:p}},r.prototype.characterClassEscape=function(){var p,C=!1;switch(this.popChar()){case"d":p=u;break;case"D":p=u,C=!0;break;case"s":p=f;break;case"S":p=f,C=!0;break;case"w":p=g;break;case"W":p=g,C=!0;break}return a(p),{type:"Set",value:p,complement:C}},r.prototype.controlEscapeAtom=function(){var p;switch(this.popChar()){case"f":p=n("\f");break;case"n":p=n(`
+`);break;case"r":p=n("\r");break;case"t":p=n("	");break;case"v":p=n("\v");break}return a(p),{type:"Character",value:p}},r.prototype.controlLetterEscapeAtom=function(){this.consumeChar("c");var p=this.popChar();if(/[a-zA-Z]/.test(p)===!1)throw Error("Invalid ");var C=p.toUpperCase().charCodeAt(0)-64;return{type:"Character",value:C}},r.prototype.nulCharacterAtom=function(){return this.consumeChar("0"),{type:"Character",value:n("\0")}},r.prototype.hexEscapeSequenceAtom=function(){return this.consumeChar("x"),this.parseHexDigits(2)},r.prototype.regExpUnicodeEscapeSequenceAtom=function(){return this.consumeChar("u"),this.parseHexDigits(4)},r.prototype.identityEscapeAtom=function(){var p=this.popChar();return{type:"Character",value:n(p)}},r.prototype.classPatternCharacterAtom=function(){switch(this.peekChar()){case`
+`:case"\r":case"\u2028":case"\u2029":case"\\":case"]":throw Error("TBD");default:var p=this.popChar();return{type:"Character",value:n(p)}}},r.prototype.characterClass=function(){var p=[],C=!1;for(this.consumeChar("["),this.peekChar(0)==="^"&&(this.consumeChar("^"),C=!0);this.isClassAtom();){var y=this.classAtom(),B=y.type==="Character";if(B&&this.isRangeDash()){this.consumeChar("-");var v=this.classAtom(),D=v.type==="Character";if(D){if(v.value<y.value)throw Error("Range out of order in character class");p.push({from:y.value,to:v.value})}else s(y.value,p),p.push(n("-")),s(v.value,p)}else s(y.value,p)}return this.consumeChar("]"),{type:"Set",complement:C,value:p}},r.prototype.classAtom=function(){switch(this.peekChar()){case"]":case`
+`:case"\r":case"\u2028":case"\u2029":throw Error("TBD");case"\\":return this.classEscape();default:return this.classPatternCharacterAtom()}},r.prototype.classEscape=function(){switch(this.consumeChar("\\"),this.peekChar()){case"b":return this.consumeChar("b"),{type:"Character",value:n("\b")};case"d":case"D":case"s":case"S":case"w":case"W":return this.characterClassEscape();case"f":case"n":case"r":case"t":case"v":return this.controlEscapeAtom();case"c":return this.controlLetterEscapeAtom();case"0":return this.nulCharacterAtom();case"x":return this.hexEscapeSequenceAtom();case"u":return this.regExpUnicodeEscapeSequenceAtom();default:return this.identityEscapeAtom()}},r.prototype.group=function(){var p=!0;switch(this.consumeChar("("),this.peekChar(0)){case"?":this.consumeChar("?"),this.consumeChar(":"),p=!1;break;default:this.groupIdx++;break}var C=this.disjunction();this.consumeChar(")");var y={type:"Group",capturing:p,value:C};return p&&(y.idx=this.groupIdx),y},r.prototype.positiveInteger=function(){var p=this.popChar();if(i.test(p)===!1)throw Error("Expecting a positive integer");for(;t.test(this.peekChar(0));)p+=this.popChar();return parseInt(p,10)},r.prototype.integerIncludingZero=function(){var p=this.popChar();if(t.test(p)===!1)throw Error("Expecting an integer");for(;t.test(this.peekChar(0));)p+=this.popChar();return parseInt(p,10)},r.prototype.patternCharacter=function(){var p=this.popChar();switch(p){case`
+`:case"\r":case"\u2028":case"\u2029":case"^":case"$":case"\\":case".":case"*":case"+":case"?":case"(":case")":case"[":case"|":throw Error("TBD");default:return{type:"Character",value:n(p)}}},r.prototype.isRegExpFlag=function(){switch(this.peekChar(0)){case"g":case"i":case"m":case"u":case"y":return!0;default:return!1}},r.prototype.isRangeDash=function(){return this.peekChar()==="-"&&this.isClassAtom(1)},r.prototype.isDigit=function(){return t.test(this.peekChar(0))},r.prototype.isClassAtom=function(p){switch(p===void 0&&(p=0),this.peekChar(p)){case"]":case`
+`:case"\r":case"\u2028":case"\u2029":return!1;default:return!0}},r.prototype.isTerm=function(){return this.isAtom()||this.isAssertion()},r.prototype.isAtom=function(){if(this.isPatternCharacter())return!0;switch(this.peekChar(0)){case".":case"\\":case"[":case"(":return!0;default:return!1}},r.prototype.isAssertion=function(){switch(this.peekChar(0)){case"^":case"$":return!0;case"\\":switch(this.peekChar(1)){case"b":case"B":return!0;default:return!1}case"(":return this.peekChar(1)==="?"&&(this.peekChar(2)==="="||this.peekChar(2)==="!");default:return!1}},r.prototype.isQuantifier=function(){var p=this.saveState();try{return this.quantifier(!0)!==void 0}catch{return!1}finally{this.restoreState(p)}},r.prototype.isPatternCharacter=function(){switch(this.peekChar()){case"^":case"$":case"\\":case".":case"*":case"+":case"?":case"(":case")":case"[":case"|":case"/":case`
+`:case"\r":case"\u2028":case"\u2029":return!1;default:return!0}},r.prototype.parseHexDigits=function(p){for(var C="",y=0;y<p;y++){var B=this.popChar();if(e.test(B)===!1)throw Error("Expecting a HexDecimal digits");C+=B}var v=parseInt(C,16);return{type:"Character",value:v}},r.prototype.peekChar=function(p){return p===void 0&&(p=0),this.input[this.idx+p]},r.prototype.popChar=function(){var p=this.peekChar(0);return this.consumeChar(),p},r.prototype.consumeChar=function(p){if(p!==void 0&&this.input[this.idx]!==p)throw Error("Expected: '"+p+"' but found: '"+this.input[this.idx]+"' at offset: "+this.idx);if(this.idx>=this.input.length)throw Error("Unexpected end of input");this.idx++},r.prototype.loc=function(p){return{begin:p,end:this.idx}};var e=/[0-9a-fA-F]/,t=/[0-9]/,i=/[1-9]/;function n(p){return p.charCodeAt(0)}function s(p,C){p.length!==void 0?p.forEach(function(y){C.push(y)}):C.push(p)}function o(p,C){if(p[C]===!0)throw"duplicate flag "+C;p[C]=!0}function a(p){if(p===void 0)throw Error("Internal Error - Should never get here!")}function l(){throw Error("Internal Error - Should never get here!")}var c,u=[];for(c=n("0");c<=n("9");c++)u.push(c);var g=[n("_")].concat(u);for(c=n("a");c<=n("z");c++)g.push(c);for(c=n("A");c<=n("Z");c++)g.push(c);var f=[n(" "),n("\f"),n(`
+`),n("\r"),n("	"),n("\v"),n("	"),n("\xA0"),n("\u1680"),n("\u2000"),n("\u2001"),n("\u2002"),n("\u2003"),n("\u2004"),n("\u2005"),n("\u2006"),n("\u2007"),n("\u2008"),n("\u2009"),n("\u200A"),n("\u2028"),n("\u2029"),n("\u202F"),n("\u205F"),n("\u3000"),n("\uFEFF")];function h(){}return h.prototype.visitChildren=function(p){for(var C in p){var y=p[C];p.hasOwnProperty(C)&&(y.type!==void 0?this.visit(y):Array.isArray(y)&&y.forEach(function(B){this.visit(B)},this))}},h.prototype.visit=function(p){switch(p.type){case"Pattern":this.visitPattern(p);break;case"Flags":this.visitFlags(p);break;case"Disjunction":this.visitDisjunction(p);break;case"Alternative":this.visitAlternative(p);break;case"StartAnchor":this.visitStartAnchor(p);break;case"EndAnchor":this.visitEndAnchor(p);break;case"WordBoundary":this.visitWordBoundary(p);break;case"NonWordBoundary":this.visitNonWordBoundary(p);break;case"Lookahead":this.visitLookahead(p);break;case"NegativeLookahead":this.visitNegativeLookahead(p);break;case"Character":this.visitCharacter(p);break;case"Set":this.visitSet(p);break;case"Group":this.visitGroup(p);break;case"GroupBackReference":this.visitGroupBackReference(p);break;case"Quantifier":this.visitQuantifier(p);break}this.visitChildren(p)},h.prototype.visitPattern=function(p){},h.prototype.visitFlags=function(p){},h.prototype.visitDisjunction=function(p){},h.prototype.visitAlternative=function(p){},h.prototype.visitStartAnchor=function(p){},h.prototype.visitEndAnchor=function(p){},h.prototype.visitWordBoundary=function(p){},h.prototype.visitNonWordBoundary=function(p){},h.prototype.visitLookahead=function(p){},h.prototype.visitNegativeLookahead=function(p){},h.prototype.visitCharacter=function(p){},h.prototype.visitSet=function(p){},h.prototype.visitGroup=function(p){},h.prototype.visitGroupBackReference=function(p){},h.prototype.visitQuantifier=function(p){},{RegExpParser:r,BaseRegExpVisitor:h,VERSION:"0.5.0"}})});var ZI=w(Wg=>{"use strict";Object.defineProperty(Wg,"__esModule",{value:!0});Wg.clearRegExpParserCache=Wg.getRegExpAst=void 0;var hEe=VI(),XI={},pEe=new hEe.RegExpParser;function dEe(r){var e=r.toString();if(XI.hasOwnProperty(e))return XI[e];var t=pEe.pattern(e);return XI[e]=t,t}Wg.getRegExpAst=dEe;function CEe(){XI={}}Wg.clearRegExpParserCache=CEe});var UY=w(pn=>{"use strict";var mEe=pn&&pn.__extends||function(){var r=function(e,t){return r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(i,n){i.__proto__=n}||function(i,n){for(var s in n)Object.prototype.hasOwnProperty.call(n,s)&&(i[s]=n[s])},r(e,t)};return function(e,t){if(typeof t!="function"&&t!==null)throw new TypeError("Class extends value "+String(t)+" is not a constructor or null");r(e,t);function i(){this.constructor=e}e.prototype=t===null?Object.create(t):(i.prototype=t.prototype,new i)}}();Object.defineProperty(pn,"__esModule",{value:!0});pn.canMatchCharCode=pn.firstCharOptimizedIndices=pn.getOptimizedStartCodesIndices=pn.failedOptimizationPrefixMsg=void 0;var OY=VI(),cs=Gt(),MY=ZI(),Sa=Rv(),KY="Complement Sets are not supported for first char optimization";pn.failedOptimizationPrefixMsg=`Unable to use "first char" lexer optimizations:
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+`)+`	Complement Sets cannot be automatically optimized.
+	This will disable the lexer's first char optimizations.
+	See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#COMPLEMENT for details.`);else{var n="";e&&(n=`
+	This will disable the lexer's first char optimizations.
+	See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#REGEXP_PARSING for details.`),(0,cs.PRINT_ERROR)(pn.failedOptimizationPrefixMsg+`
+`+("	Failed parsing: < "+r.toString()+` >
+`)+("	Using the regexp-to-ast library version: "+OY.VERSION+`
+`)+"	Please open an issue at: https://github.com/bd82/regexp-to-ast/issues"+n)}}return[]}pn.getOptimizedStartCodesIndices=EEe;function $I(r,e,t){switch(r.type){case"Disjunction":for(var i=0;i<r.value.length;i++)$I(r.value[i],e,t);break;case"Alternative":for(var n=r.value,i=0;i<n.length;i++){var s=n[i];switch(s.type){case"EndAnchor":case"GroupBackReference":case"Lookahead":case"NegativeLookahead":case"StartAnchor":case"WordBoundary":case"NonWordBoundary":continue}var o=s;switch(o.type){case"Character":_I(o.value,e,t);break;case"Set":if(o.complement===!0)throw Error(KY);(0,cs.forEach)(o.value,function(c){if(typeof c=="number")_I(c,e,t);else{var u=c;if(t===!0)for(var g=u.from;g<=u.to;g++)_I(g,e,t);else{for(var g=u.from;g<=u.to&&g<Sa.minOptimizationVal;g++)_I(g,e,t);if(u.to>=Sa.minOptimizationVal)for(var f=u.from>=Sa.minOptimizationVal?u.from:Sa.minOptimizationVal,h=u.to,p=(0,Sa.charCodeToOptimizedIndex)(f),C=(0,Sa.charCodeToOptimizedIndex)(h),y=p;y<=C;y++)e[y]=y}}});break;case"Group":$I(o.value,e,t);break;default:throw Error("Non Exhaustive Match")}var a=o.quantifier!==void 0&&o.quantifier.atLeast===0;if(o.type==="Group"&&kv(o)===!1||o.type!=="Group"&&a===!1)break}break;default:throw Error("non exhaustive match!")}return(0,cs.values)(e)}pn.firstCharOptimizedIndices=$I;function _I(r,e,t){var i=(0,Sa.charCodeToOptimizedIndex)(r);e[i]=i,t===!0&&IEe(r,e)}function IEe(r,e){var t=String.fromCharCode(r),i=t.toUpperCase();if(i!==t){var n=(0,Sa.charCodeToOptimizedIndex)(i.charCodeAt(0));e[n]=n}else{var s=t.toLowerCase();if(s!==t){var n=(0,Sa.charCodeToOptimizedIndex)(s.charCodeAt(0));e[n]=n}}}function TY(r,e){return(0,cs.find)(r.value,function(t){if(typeof t=="number")return(0,cs.contains)(e,t);var i=t;return(0,cs.find)(e,function(n){return i.from<=n&&n<=i.to})!==void 0})}function kv(r){return r.quantifier&&r.quantifier.atLeast===0?!0:r.value?(0,cs.isArray)(r.value)?(0,cs.every)(r.value,kv):kv(r.value):!1}var yEe=function(r){mEe(e,r);function e(t){var i=r.call(this)||this;return i.targetCharCodes=t,i.found=!1,i}return e.prototype.visitChildren=function(t){if(this.found!==!0){switch(t.type){case"Lookahead":this.visitLookahead(t);return;case"NegativeLookahead":this.visitNegativeLookahead(t);return}r.prototype.visitChildren.call(this,t)}},e.prototype.visitCharacter=function(t){(0,cs.contains)(this.targetCharCodes,t.value)&&(this.found=!0)},e.prototype.visitSet=function(t){t.complement?TY(t,this.targetCharCodes)===void 0&&(this.found=!0):TY(t,this.targetCharCodes)!==void 0&&(this.found=!0)},e}(OY.BaseRegExpVisitor);function wEe(r,e){if(e instanceof RegExp){var t=(0,MY.getRegExpAst)(e),i=new yEe(r);return i.visit(t),i.found}else return(0,cs.find)(e,function(n){return(0,cs.contains)(r,n.charCodeAt(0))})!==void 0}pn.canMatchCharCode=wEe});var Rv=w(Ve=>{"use strict";var HY=Ve&&Ve.__extends||function(){var r=function(e,t){return r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(i,n){i.__proto__=n}||function(i,n){for(var s in n)Object.prototype.hasOwnProperty.call(n,s)&&(i[s]=n[s])},r(e,t)};return function(e,t){if(typeof t!="function"&&t!==null)throw new TypeError("Class extends value "+String(t)+" is not a constructor or null");r(e,t);function i(){this.constructor=e}e.prototype=t===null?Object.create(t):(i.prototype=t.prototype,new i)}}();Object.defineProperty(Ve,"__esModule",{value:!0});Ve.charCodeToOptimizedIndex=Ve.minOptimizationVal=Ve.buildLineBreakIssueMessage=Ve.LineTerminatorOptimizedTester=Ve.isShortPattern=Ve.isCustomPattern=Ve.cloneEmptyGroups=Ve.performWarningRuntimeChecks=Ve.performRuntimeChecks=Ve.addStickyFlag=Ve.addStartOfInput=Ve.findUnreachablePatterns=Ve.findModesThatDoNotExist=Ve.findInvalidGroupType=Ve.findDuplicatePatterns=Ve.findUnsupportedFlags=Ve.findStartOfInputAnchor=Ve.findEmptyMatchRegExps=Ve.findEndOfInputAnchor=Ve.findInvalidPatterns=Ve.findMissingPatterns=Ve.validatePatterns=Ve.analyzeTokenTypes=Ve.enableSticky=Ve.disableSticky=Ve.SUPPORT_STICKY=Ve.MODES=Ve.DEFAULT_MODE=void 0;var GY=VI(),ir=yd(),xe=Gt(),zg=UY(),YY=ZI(),Do="PATTERN";Ve.DEFAULT_MODE="defaultMode";Ve.MODES="modes";Ve.SUPPORT_STICKY=typeof new RegExp("(?:)").sticky=="boolean";function BEe(){Ve.SUPPORT_STICKY=!1}Ve.disableSticky=BEe;function QEe(){Ve.SUPPORT_STICKY=!0}Ve.enableSticky=QEe;function bEe(r,e){e=(0,xe.defaults)(e,{useSticky:Ve.SUPPORT_STICKY,debug:!1,safeMode:!1,positionTracking:"full",lineTerminatorCharacters:["\r",`
+`],tracer:function(v,D){return D()}});var t=e.tracer;t("initCharCodeToOptimizedIndexMap",function(){LEe()});var i;t("Reject Lexer.NA",function(){i=(0,xe.reject)(r,function(v){return v[Do]===ir.Lexer.NA})});var n=!1,s;t("Transform Patterns",function(){n=!1,s=(0,xe.map)(i,function(v){var D=v[Do];if((0,xe.isRegExp)(D)){var L=D.source;return L.length===1&&L!=="^"&&L!=="$"&&L!=="."&&!D.ignoreCase?L:L.length===2&&L[0]==="\\"&&!(0,xe.contains)(["d","D","s","S","t","r","n","t","0","c","b","B","f","v","w","W"],L[1])?L[1]:e.useSticky?Lv(D):Nv(D)}else{if((0,xe.isFunction)(D))return n=!0,{exec:D};if((0,xe.has)(D,"exec"))return n=!0,D;if(typeof D=="string"){if(D.length===1)return D;var H=D.replace(/[\\^$.*+?()[\]{}|]/g,"\\$&"),j=new RegExp(H);return e.useSticky?Lv(j):Nv(j)}else throw Error("non exhaustive match")}})});var o,a,l,c,u;t("misc mapping",function(){o=(0,xe.map)(i,function(v){return v.tokenTypeIdx}),a=(0,xe.map)(i,function(v){var D=v.GROUP;if(D!==ir.Lexer.SKIPPED){if((0,xe.isString)(D))return D;if((0,xe.isUndefined)(D))return!1;throw Error("non exhaustive match")}}),l=(0,xe.map)(i,function(v){var D=v.LONGER_ALT;if(D){var L=(0,xe.isArray)(D)?(0,xe.map)(D,function(H){return(0,xe.indexOf)(i,H)}):[(0,xe.indexOf)(i,D)];return L}}),c=(0,xe.map)(i,function(v){return v.PUSH_MODE}),u=(0,xe.map)(i,function(v){return(0,xe.has)(v,"POP_MODE")})});var g;t("Line Terminator Handling",function(){var v=ij(e.lineTerminatorCharacters);g=(0,xe.map)(i,function(D){return!1}),e.positionTracking!=="onlyOffset"&&(g=(0,xe.map)(i,function(D){if((0,xe.has)(D,"LINE_BREAKS"))return D.LINE_BREAKS;if(tj(D,v)===!1)return(0,zg.canMatchCharCode)(v,D.PATTERN)}))});var f,h,p,C;t("Misc Mapping #2",function(){f=(0,xe.map)(i,Ov),h=(0,xe.map)(s,ej),p=(0,xe.reduce)(i,function(v,D){var L=D.GROUP;return(0,xe.isString)(L)&&L!==ir.Lexer.SKIPPED&&(v[L]=[]),v},{}),C=(0,xe.map)(s,function(v,D){return{pattern:s[D],longerAlt:l[D],canLineTerminator:g[D],isCustom:f[D],short:h[D],group:a[D],push:c[D],pop:u[D],tokenTypeIdx:o[D],tokenType:i[D]}})});var y=!0,B=[];return e.safeMode||t("First Char Optimization",function(){B=(0,xe.reduce)(i,function(v,D,L){if(typeof D.PATTERN=="string"){var H=D.PATTERN.charCodeAt(0),j=Tv(H);Fv(v,j,C[L])}else if((0,xe.isArray)(D.START_CHARS_HINT)){var $;(0,xe.forEach)(D.START_CHARS_HINT,function(W){var _=typeof W=="string"?W.charCodeAt(0):W,A=Tv(_);$!==A&&($=A,Fv(v,A,C[L]))})}else if((0,xe.isRegExp)(D.PATTERN))if(D.PATTERN.unicode)y=!1,e.ensureOptimizations&&(0,xe.PRINT_ERROR)(""+zg.failedOptimizationPrefixMsg+("	Unable to analyze < "+D.PATTERN.toString()+` > pattern.
+`)+`	The regexp unicode flag is not currently supported by the regexp-to-ast library.
+	This will disable the lexer's first char optimizations.
+	For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#UNICODE_OPTIMIZE`);else{var V=(0,zg.getOptimizedStartCodesIndices)(D.PATTERN,e.ensureOptimizations);(0,xe.isEmpty)(V)&&(y=!1),(0,xe.forEach)(V,function(W){Fv(v,W,C[L])})}else e.ensureOptimizations&&(0,xe.PRINT_ERROR)(""+zg.failedOptimizationPrefixMsg+("	TokenType: <"+D.name+`> is using a custom token pattern without providing <start_chars_hint> parameter.
+`)+`	This will disable the lexer's first char optimizations.
+	For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#CUSTOM_OPTIMIZE`),y=!1;return v},[])}),t("ArrayPacking",function(){B=(0,xe.packArray)(B)}),{emptyGroups:p,patternIdxToConfig:C,charCodeToPatternIdxToConfig:B,hasCustom:n,canBeOptimized:y}}Ve.analyzeTokenTypes=bEe;function SEe(r,e){var t=[],i=jY(r);t=t.concat(i.errors);var n=qY(i.valid),s=n.valid;return t=t.concat(n.errors),t=t.concat(vEe(s)),t=t.concat(ZY(s)),t=t.concat(_Y(s,e)),t=t.concat($Y(s)),t}Ve.validatePatterns=SEe;function vEe(r){var e=[],t=(0,xe.filter)(r,function(i){return(0,xe.isRegExp)(i[Do])});return e=e.concat(JY(t)),e=e.concat(zY(t)),e=e.concat(VY(t)),e=e.concat(XY(t)),e=e.concat(WY(t)),e}function jY(r){var e=(0,xe.filter)(r,function(n){return!(0,xe.has)(n,Do)}),t=(0,xe.map)(e,function(n){return{message:"Token Type: ->"+n.name+"<- missing static 'PATTERN' property",type:ir.LexerDefinitionErrorType.MISSING_PATTERN,tokenTypes:[n]}}),i=(0,xe.difference)(r,e);return{errors:t,valid:i}}Ve.findMissingPatterns=jY;function qY(r){var e=(0,xe.filter)(r,function(n){var s=n[Do];return!(0,xe.isRegExp)(s)&&!(0,xe.isFunction)(s)&&!(0,xe.has)(s,"exec")&&!(0,xe.isString)(s)}),t=(0,xe.map)(e,function(n){return{message:"Token Type: ->"+n.name+"<- static 'PATTERN' can only be a RegExp, a Function matching the {CustomPatternMatcherFunc} type or an Object matching the {ICustomPattern} interface.",type:ir.LexerDefinitionErrorType.INVALID_PATTERN,tokenTypes:[n]}}),i=(0,xe.difference)(r,e);return{errors:t,valid:i}}Ve.findInvalidPatterns=qY;var xEe=/[^\\][\$]/;function JY(r){var e=function(n){HY(s,n);function s(){var o=n!==null&&n.apply(this,arguments)||this;return o.found=!1,o}return s.prototype.visitEndAnchor=function(o){this.found=!0},s}(GY.BaseRegExpVisitor),t=(0,xe.filter)(r,function(n){var s=n[Do];try{var o=(0,YY.getRegExpAst)(s),a=new e;return a.visit(o),a.found}catch{return xEe.test(s.source)}}),i=(0,xe.map)(t,function(n){return{message:`Unexpected RegExp Anchor Error:
+	Token Type: ->`+n.name+`<- static 'PATTERN' cannot contain end of input anchor '$'
+	See chevrotain.io/docs/guide/resolving_lexer_errors.html#ANCHORS	for details.`,type:ir.LexerDefinitionErrorType.EOI_ANCHOR_FOUND,tokenTypes:[n]}});return i}Ve.findEndOfInputAnchor=JY;function WY(r){var e=(0,xe.filter)(r,function(i){var n=i[Do];return n.test("")}),t=(0,xe.map)(e,function(i){return{message:"Token Type: ->"+i.name+"<- static 'PATTERN' must not match an empty string",type:ir.LexerDefinitionErrorType.EMPTY_MATCH_PATTERN,tokenTypes:[i]}});return t}Ve.findEmptyMatchRegExps=WY;var PEe=/[^\\[][\^]|^\^/;function zY(r){var e=function(n){HY(s,n);function s(){var o=n!==null&&n.apply(this,arguments)||this;return o.found=!1,o}return s.prototype.visitStartAnchor=function(o){this.found=!0},s}(GY.BaseRegExpVisitor),t=(0,xe.filter)(r,function(n){var s=n[Do];try{var o=(0,YY.getRegExpAst)(s),a=new e;return a.visit(o),a.found}catch{return PEe.test(s.source)}}),i=(0,xe.map)(t,function(n){return{message:`Unexpected RegExp Anchor Error:
+	Token Type: ->`+n.name+`<- static 'PATTERN' cannot contain start of input anchor '^'
+	See https://chevrotain.io/docs/guide/resolving_lexer_errors.html#ANCHORS	for details.`,type:ir.LexerDefinitionErrorType.SOI_ANCHOR_FOUND,tokenTypes:[n]}});return i}Ve.findStartOfInputAnchor=zY;function VY(r){var e=(0,xe.filter)(r,function(i){var n=i[Do];return n instanceof RegExp&&(n.multiline||n.global)}),t=(0,xe.map)(e,function(i){return{message:"Token Type: ->"+i.name+"<- static 'PATTERN' may NOT contain global('g') or multiline('m')",type:ir.LexerDefinitionErrorType.UNSUPPORTED_FLAGS_FOUND,tokenTypes:[i]}});return t}Ve.findUnsupportedFlags=VY;function XY(r){var e=[],t=(0,xe.map)(r,function(s){return(0,xe.reduce)(r,function(o,a){return s.PATTERN.source===a.PATTERN.source&&!(0,xe.contains)(e,a)&&a.PATTERN!==ir.Lexer.NA&&(e.push(a),o.push(a)),o},[])});t=(0,xe.compact)(t);var i=(0,xe.filter)(t,function(s){return s.length>1}),n=(0,xe.map)(i,function(s){var o=(0,xe.map)(s,function(l){return l.name}),a=(0,xe.first)(s).PATTERN;return{message:"The same RegExp pattern ->"+a+"<-"+("has been used in all of the following Token Types: "+o.join(", ")+" <-"),type:ir.LexerDefinitionErrorType.DUPLICATE_PATTERNS_FOUND,tokenTypes:s}});return n}Ve.findDuplicatePatterns=XY;function ZY(r){var e=(0,xe.filter)(r,function(i){if(!(0,xe.has)(i,"GROUP"))return!1;var n=i.GROUP;return n!==ir.Lexer.SKIPPED&&n!==ir.Lexer.NA&&!(0,xe.isString)(n)}),t=(0,xe.map)(e,function(i){return{message:"Token Type: ->"+i.name+"<- static 'GROUP' can only be Lexer.SKIPPED/Lexer.NA/A String",type:ir.LexerDefinitionErrorType.INVALID_GROUP_TYPE_FOUND,tokenTypes:[i]}});return t}Ve.findInvalidGroupType=ZY;function _Y(r,e){var t=(0,xe.filter)(r,function(n){return n.PUSH_MODE!==void 0&&!(0,xe.contains)(e,n.PUSH_MODE)}),i=(0,xe.map)(t,function(n){var s="Token Type: ->"+n.name+"<- static 'PUSH_MODE' value cannot refer to a Lexer Mode ->"+n.PUSH_MODE+"<-which does not exist";return{message:s,type:ir.LexerDefinitionErrorType.PUSH_MODE_DOES_NOT_EXIST,tokenTypes:[n]}});return i}Ve.findModesThatDoNotExist=_Y;function $Y(r){var e=[],t=(0,xe.reduce)(r,function(i,n,s){var o=n.PATTERN;return o===ir.Lexer.NA||((0,xe.isString)(o)?i.push({str:o,idx:s,tokenType:n}):(0,xe.isRegExp)(o)&&kEe(o)&&i.push({str:o.source,idx:s,tokenType:n})),i},[]);return(0,xe.forEach)(r,function(i,n){(0,xe.forEach)(t,function(s){var o=s.str,a=s.idx,l=s.tokenType;if(n<a&&DEe(o,i.PATTERN)){var c="Token: ->"+l.name+`<- can never be matched.
+`+("Because it appears AFTER the Token Type ->"+i.name+"<-")+`in the lexer's definition.
+See https://chevrotain.io/docs/guide/resolving_lexer_errors.html#UNREACHABLE`;e.push({message:c,type:ir.LexerDefinitionErrorType.UNREACHABLE_PATTERN,tokenTypes:[i,l]})}})}),e}Ve.findUnreachablePatterns=$Y;function DEe(r,e){if((0,xe.isRegExp)(e)){var t=e.exec(r);return t!==null&&t.index===0}else{if((0,xe.isFunction)(e))return e(r,0,[],{});if((0,xe.has)(e,"exec"))return e.exec(r,0,[],{});if(typeof e=="string")return e===r;throw Error("non exhaustive match")}}function kEe(r){var e=[".","\\","[","]","|","^","$","(",")","?","*","+","{"];return(0,xe.find)(e,function(t){return r.source.indexOf(t)!==-1})===void 0}function Nv(r){var e=r.ignoreCase?"i":"";return new RegExp("^(?:"+r.source+")",e)}Ve.addStartOfInput=Nv;function Lv(r){var e=r.ignoreCase?"iy":"y";return new RegExp(""+r.source,e)}Ve.addStickyFlag=Lv;function REe(r,e,t){var i=[];return(0,xe.has)(r,Ve.DEFAULT_MODE)||i.push({message:"A MultiMode Lexer cannot be initialized without a <"+Ve.DEFAULT_MODE+`> property in its definition
+`,type:ir.LexerDefinitionErrorType.MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE}),(0,xe.has)(r,Ve.MODES)||i.push({message:"A MultiMode Lexer cannot be initialized without a <"+Ve.MODES+`> property in its definition
+`,type:ir.LexerDefinitionErrorType.MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY}),(0,xe.has)(r,Ve.MODES)&&(0,xe.has)(r,Ve.DEFAULT_MODE)&&!(0,xe.has)(r.modes,r.defaultMode)&&i.push({message:"A MultiMode Lexer cannot be initialized with a "+Ve.DEFAULT_MODE+": <"+r.defaultMode+`>which does not exist
+`,type:ir.LexerDefinitionErrorType.MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST}),(0,xe.has)(r,Ve.MODES)&&(0,xe.forEach)(r.modes,function(n,s){(0,xe.forEach)(n,function(o,a){(0,xe.isUndefined)(o)&&i.push({message:"A Lexer cannot be initialized using an undefined Token Type. Mode:"+("<"+s+"> at index: <"+a+`>
+`),type:ir.LexerDefinitionErrorType.LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED})})}),i}Ve.performRuntimeChecks=REe;function FEe(r,e,t){var i=[],n=!1,s=(0,xe.compact)((0,xe.flatten)((0,xe.mapValues)(r.modes,function(l){return l}))),o=(0,xe.reject)(s,function(l){return l[Do]===ir.Lexer.NA}),a=ij(t);return e&&(0,xe.forEach)(o,function(l){var c=tj(l,a);if(c!==!1){var u=rj(l,c),g={message:u,type:c.issue,tokenType:l};i.push(g)}else(0,xe.has)(l,"LINE_BREAKS")?l.LINE_BREAKS===!0&&(n=!0):(0,zg.canMatchCharCode)(a,l.PATTERN)&&(n=!0)}),e&&!n&&i.push({message:`Warning: No LINE_BREAKS Found.
+	This Lexer has been defined to track line and column information,
+	But none of the Token Types can be identified as matching a line terminator.
+	See https://chevrotain.io/docs/guide/resolving_lexer_errors.html#LINE_BREAKS 
+	for details.`,type:ir.LexerDefinitionErrorType.NO_LINE_BREAKS_FLAGS}),i}Ve.performWarningRuntimeChecks=FEe;function NEe(r){var e={},t=(0,xe.keys)(r);return(0,xe.forEach)(t,function(i){var n=r[i];if((0,xe.isArray)(n))e[i]=[];else throw Error("non exhaustive match")}),e}Ve.cloneEmptyGroups=NEe;function Ov(r){var e=r.PATTERN;if((0,xe.isRegExp)(e))return!1;if((0,xe.isFunction)(e))return!0;if((0,xe.has)(e,"exec"))return!0;if((0,xe.isString)(e))return!1;throw Error("non exhaustive match")}Ve.isCustomPattern=Ov;function ej(r){return(0,xe.isString)(r)&&r.length===1?r.charCodeAt(0):!1}Ve.isShortPattern=ej;Ve.LineTerminatorOptimizedTester={test:function(r){for(var e=r.length,t=this.lastIndex;t<e;t++){var i=r.charCodeAt(t);if(i===10)return this.lastIndex=t+1,!0;if(i===13)return r.charCodeAt(t+1)===10?this.lastIndex=t+2:this.lastIndex=t+1,!0}return!1},lastIndex:0};function tj(r,e){if((0,xe.has)(r,"LINE_BREAKS"))return!1;if((0,xe.isRegExp)(r.PATTERN)){try{(0,zg.canMatchCharCode)(e,r.PATTERN)}catch(t){return{issue:ir.LexerDefinitionErrorType.IDENTIFY_TERMINATOR,errMsg:t.message}}return!1}else{if((0,xe.isString)(r.PATTERN))return!1;if(Ov(r))return{issue:ir.LexerDefinitionErrorType.CUSTOM_LINE_BREAK};throw Error("non exhaustive match")}}function rj(r,e){if(e.issue===ir.LexerDefinitionErrorType.IDENTIFY_TERMINATOR)return`Warning: unable to identify line terminator usage in pattern.
+`+("	The problem is in the <"+r.name+`> Token Type
+`)+("	 Root cause: "+e.errMsg+`.
+`)+"	For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#IDENTIFY_TERMINATOR";if(e.issue===ir.LexerDefinitionErrorType.CUSTOM_LINE_BREAK)return`Warning: A Custom Token Pattern should specify the <line_breaks> option.
+`+("	The problem is in the <"+r.name+`> Token Type
+`)+"	For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#CUSTOM_LINE_BREAK";throw Error("non exhaustive match")}Ve.buildLineBreakIssueMessage=rj;function ij(r){var e=(0,xe.map)(r,function(t){return(0,xe.isString)(t)&&t.length>0?t.charCodeAt(0):t});return e}function Fv(r,e,t){r[e]===void 0?r[e]=[t]:r[e].push(t)}Ve.minOptimizationVal=256;var ey=[];function Tv(r){return r<Ve.minOptimizationVal?r:ey[r]}Ve.charCodeToOptimizedIndex=Tv;function LEe(){if((0,xe.isEmpty)(ey)){ey=new Array(65536);for(var r=0;r<65536;r++)ey[r]=r>255?255+~~(r/255):r}}});var Vg=w(Nt=>{"use strict";Object.defineProperty(Nt,"__esModule",{value:!0});Nt.isTokenType=Nt.hasExtendingTokensTypesMapProperty=Nt.hasExtendingTokensTypesProperty=Nt.hasCategoriesProperty=Nt.hasShortKeyProperty=Nt.singleAssignCategoriesToksMap=Nt.assignCategoriesMapProp=Nt.assignCategoriesTokensProp=Nt.assignTokenDefaultProps=Nt.expandCategories=Nt.augmentTokenTypes=Nt.tokenIdxToClass=Nt.tokenShortNameIdx=Nt.tokenStructuredMatcherNoCategories=Nt.tokenStructuredMatcher=void 0;var Zr=Gt();function TEe(r,e){var t=r.tokenTypeIdx;return t===e.tokenTypeIdx?!0:e.isParent===!0&&e.categoryMatchesMap[t]===!0}Nt.tokenStructuredMatcher=TEe;function OEe(r,e){return r.tokenTypeIdx===e.tokenTypeIdx}Nt.tokenStructuredMatcherNoCategories=OEe;Nt.tokenShortNameIdx=1;Nt.tokenIdxToClass={};function MEe(r){var e=nj(r);sj(e),aj(e),oj(e),(0,Zr.forEach)(e,function(t){t.isParent=t.categoryMatches.length>0})}Nt.augmentTokenTypes=MEe;function nj(r){for(var e=(0,Zr.cloneArr)(r),t=r,i=!0;i;){t=(0,Zr.compact)((0,Zr.flatten)((0,Zr.map)(t,function(s){return s.CATEGORIES})));var n=(0,Zr.difference)(t,e);e=e.concat(n),(0,Zr.isEmpty)(n)?i=!1:t=n}return e}Nt.expandCategories=nj;function sj(r){(0,Zr.forEach)(r,function(e){Aj(e)||(Nt.tokenIdxToClass[Nt.tokenShortNameIdx]=e,e.tokenTypeIdx=Nt.tokenShortNameIdx++),Mv(e)&&!(0,Zr.isArray)(e.CATEGORIES)&&(e.CATEGORIES=[e.CATEGORIES]),Mv(e)||(e.CATEGORIES=[]),lj(e)||(e.categoryMatches=[]),cj(e)||(e.categoryMatchesMap={})})}Nt.assignTokenDefaultProps=sj;function oj(r){(0,Zr.forEach)(r,function(e){e.categoryMatches=[],(0,Zr.forEach)(e.categoryMatchesMap,function(t,i){e.categoryMatches.push(Nt.tokenIdxToClass[i].tokenTypeIdx)})})}Nt.assignCategoriesTokensProp=oj;function aj(r){(0,Zr.forEach)(r,function(e){Kv([],e)})}Nt.assignCategoriesMapProp=aj;function Kv(r,e){(0,Zr.forEach)(r,function(t){e.categoryMatchesMap[t.tokenTypeIdx]=!0}),(0,Zr.forEach)(e.CATEGORIES,function(t){var i=r.concat(e);(0,Zr.contains)(i,t)||Kv(i,t)})}Nt.singleAssignCategoriesToksMap=Kv;function Aj(r){return(0,Zr.has)(r,"tokenTypeIdx")}Nt.hasShortKeyProperty=Aj;function Mv(r){return(0,Zr.has)(r,"CATEGORIES")}Nt.hasCategoriesProperty=Mv;function lj(r){return(0,Zr.has)(r,"categoryMatches")}Nt.hasExtendingTokensTypesProperty=lj;function cj(r){return(0,Zr.has)(r,"categoryMatchesMap")}Nt.hasExtendingTokensTypesMapProperty=cj;function KEe(r){return(0,Zr.has)(r,"tokenTypeIdx")}Nt.isTokenType=KEe});var Uv=w(ty=>{"use strict";Object.defineProperty(ty,"__esModule",{value:!0});ty.defaultLexerErrorProvider=void 0;ty.defaultLexerErrorProvider={buildUnableToPopLexerModeMessage:function(r){return"Unable to pop Lexer Mode after encountering Token ->"+r.image+"<- The Mode Stack is empty"},buildUnexpectedCharactersMessage:function(r,e,t,i,n){return"unexpected character: ->"+r.charAt(e)+"<- at offset: "+e+","+(" skipped "+t+" characters.")}}});var yd=w(fc=>{"use strict";Object.defineProperty(fc,"__esModule",{value:!0});fc.Lexer=fc.LexerDefinitionErrorType=void 0;var Xs=Rv(),nr=Gt(),UEe=Vg(),HEe=Uv(),GEe=ZI(),YEe;(function(r){r[r.MISSING_PATTERN=0]="MISSING_PATTERN",r[r.INVALID_PATTERN=1]="INVALID_PATTERN",r[r.EOI_ANCHOR_FOUND=2]="EOI_ANCHOR_FOUND",r[r.UNSUPPORTED_FLAGS_FOUND=3]="UNSUPPORTED_FLAGS_FOUND",r[r.DUPLICATE_PATTERNS_FOUND=4]="DUPLICATE_PATTERNS_FOUND",r[r.INVALID_GROUP_TYPE_FOUND=5]="INVALID_GROUP_TYPE_FOUND",r[r.PUSH_MODE_DOES_NOT_EXIST=6]="PUSH_MODE_DOES_NOT_EXIST",r[r.MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE=7]="MULTI_MODE_LEXER_WITHOUT_DEFAULT_MODE",r[r.MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY=8]="MULTI_MODE_LEXER_WITHOUT_MODES_PROPERTY",r[r.MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST=9]="MULTI_MODE_LEXER_DEFAULT_MODE_VALUE_DOES_NOT_EXIST",r[r.LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED=10]="LEXER_DEFINITION_CANNOT_CONTAIN_UNDEFINED",r[r.SOI_ANCHOR_FOUND=11]="SOI_ANCHOR_FOUND",r[r.EMPTY_MATCH_PATTERN=12]="EMPTY_MATCH_PATTERN",r[r.NO_LINE_BREAKS_FLAGS=13]="NO_LINE_BREAKS_FLAGS",r[r.UNREACHABLE_PATTERN=14]="UNREACHABLE_PATTERN",r[r.IDENTIFY_TERMINATOR=15]="IDENTIFY_TERMINATOR",r[r.CUSTOM_LINE_BREAK=16]="CUSTOM_LINE_BREAK"})(YEe=fc.LexerDefinitionErrorType||(fc.LexerDefinitionErrorType={}));var wd={deferDefinitionErrorsHandling:!1,positionTracking:"full",lineTerminatorsPattern:/\n|\r\n?/g,lineTerminatorCharacters:[`
+`,"\r"],ensureOptimizations:!1,safeMode:!1,errorMessageProvider:HEe.defaultLexerErrorProvider,traceInitPerf:!1,skipValidations:!1};Object.freeze(wd);var jEe=function(){function r(e,t){var i=this;if(t===void 0&&(t=wd),this.lexerDefinition=e,this.lexerDefinitionErrors=[],this.lexerDefinitionWarning=[],this.patternIdxToConfig={},this.charCodeToPatternIdxToConfig={},this.modes=[],this.emptyGroups={},this.config=void 0,this.trackStartLines=!0,this.trackEndLines=!0,this.hasCustom=!1,this.canModeBeOptimized={},typeof t=="boolean")throw Error(`The second argument to the Lexer constructor is now an ILexerConfig Object.
+a boolean 2nd argument is no longer supported`);this.config=(0,nr.merge)(wd,t);var n=this.config.traceInitPerf;n===!0?(this.traceInitMaxIdent=1/0,this.traceInitPerf=!0):typeof n=="number"&&(this.traceInitMaxIdent=n,this.traceInitPerf=!0),this.traceInitIndent=-1,this.TRACE_INIT("Lexer Constructor",function(){var s,o=!0;i.TRACE_INIT("Lexer Config handling",function(){if(i.config.lineTerminatorsPattern===wd.lineTerminatorsPattern)i.config.lineTerminatorsPattern=Xs.LineTerminatorOptimizedTester;else if(i.config.lineTerminatorCharacters===wd.lineTerminatorCharacters)throw Error(`Error: Missing <lineTerminatorCharacters> property on the Lexer config.
+	For details See: https://chevrotain.io/docs/guide/resolving_lexer_errors.html#MISSING_LINE_TERM_CHARS`);if(t.safeMode&&t.ensureOptimizations)throw Error('"safeMode" and "ensureOptimizations" flags are mutually exclusive.');i.trackStartLines=/full|onlyStart/i.test(i.config.positionTracking),i.trackEndLines=/full/i.test(i.config.positionTracking),(0,nr.isArray)(e)?(s={modes:{}},s.modes[Xs.DEFAULT_MODE]=(0,nr.cloneArr)(e),s[Xs.DEFAULT_MODE]=Xs.DEFAULT_MODE):(o=!1,s=(0,nr.cloneObj)(e))}),i.config.skipValidations===!1&&(i.TRACE_INIT("performRuntimeChecks",function(){i.lexerDefinitionErrors=i.lexerDefinitionErrors.concat((0,Xs.performRuntimeChecks)(s,i.trackStartLines,i.config.lineTerminatorCharacters))}),i.TRACE_INIT("performWarningRuntimeChecks",function(){i.lexerDefinitionWarning=i.lexerDefinitionWarning.concat((0,Xs.performWarningRuntimeChecks)(s,i.trackStartLines,i.config.lineTerminatorCharacters))})),s.modes=s.modes?s.modes:{},(0,nr.forEach)(s.modes,function(u,g){s.modes[g]=(0,nr.reject)(u,function(f){return(0,nr.isUndefined)(f)})});var a=(0,nr.keys)(s.modes);if((0,nr.forEach)(s.modes,function(u,g){i.TRACE_INIT("Mode: <"+g+"> processing",function(){if(i.modes.push(g),i.config.skipValidations===!1&&i.TRACE_INIT("validatePatterns",function(){i.lexerDefinitionErrors=i.lexerDefinitionErrors.concat((0,Xs.validatePatterns)(u,a))}),(0,nr.isEmpty)(i.lexerDefinitionErrors)){(0,UEe.augmentTokenTypes)(u);var f;i.TRACE_INIT("analyzeTokenTypes",function(){f=(0,Xs.analyzeTokenTypes)(u,{lineTerminatorCharacters:i.config.lineTerminatorCharacters,positionTracking:t.positionTracking,ensureOptimizations:t.ensureOptimizations,safeMode:t.safeMode,tracer:i.TRACE_INIT.bind(i)})}),i.patternIdxToConfig[g]=f.patternIdxToConfig,i.charCodeToPatternIdxToConfig[g]=f.charCodeToPatternIdxToConfig,i.emptyGroups=(0,nr.merge)(i.emptyGroups,f.emptyGroups),i.hasCustom=f.hasCustom||i.hasCustom,i.canModeBeOptimized[g]=f.canBeOptimized}})}),i.defaultMode=s.defaultMode,!(0,nr.isEmpty)(i.lexerDefinitionErrors)&&!i.config.deferDefinitionErrorsHandling){var l=(0,nr.map)(i.lexerDefinitionErrors,function(u){return u.message}),c=l.join(`-----------------------
+`);throw new Error(`Errors detected in definition of Lexer:
+`+c)}(0,nr.forEach)(i.lexerDefinitionWarning,function(u){(0,nr.PRINT_WARNING)(u.message)}),i.TRACE_INIT("Choosing sub-methods implementations",function(){if(Xs.SUPPORT_STICKY?(i.chopInput=nr.IDENTITY,i.match=i.matchWithTest):(i.updateLastIndex=nr.NOOP,i.match=i.matchWithExec),o&&(i.handleModes=nr.NOOP),i.trackStartLines===!1&&(i.computeNewColumn=nr.IDENTITY),i.trackEndLines===!1&&(i.updateTokenEndLineColumnLocation=nr.NOOP),/full/i.test(i.config.positionTracking))i.createTokenInstance=i.createFullToken;else if(/onlyStart/i.test(i.config.positionTracking))i.createTokenInstance=i.createStartOnlyToken;else if(/onlyOffset/i.test(i.config.positionTracking))i.createTokenInstance=i.createOffsetOnlyToken;else throw Error('Invalid <positionTracking> config option: "'+i.config.positionTracking+'"');i.hasCustom?(i.addToken=i.addTokenUsingPush,i.handlePayload=i.handlePayloadWithCustom):(i.addToken=i.addTokenUsingMemberAccess,i.handlePayload=i.handlePayloadNoCustom)}),i.TRACE_INIT("Failed Optimization Warnings",function(){var u=(0,nr.reduce)(i.canModeBeOptimized,function(g,f,h){return f===!1&&g.push(h),g},[]);if(t.ensureOptimizations&&!(0,nr.isEmpty)(u))throw Error("Lexer Modes: < "+u.join(", ")+` > cannot be optimized.
+	 Disable the "ensureOptimizations" lexer config flag to silently ignore this and run the lexer in an un-optimized mode.
+	 Or inspect the console log for details on how to resolve these issues.`)}),i.TRACE_INIT("clearRegExpParserCache",function(){(0,GEe.clearRegExpParserCache)()}),i.TRACE_INIT("toFastProperties",function(){(0,nr.toFastProperties)(i)})})}return r.prototype.tokenize=function(e,t){if(t===void 0&&(t=this.defaultMode),!(0,nr.isEmpty)(this.lexerDefinitionErrors)){var i=(0,nr.map)(this.lexerDefinitionErrors,function(o){return o.message}),n=i.join(`-----------------------
+`);throw new Error(`Unable to Tokenize because Errors detected in definition of Lexer:
+`+n)}var s=this.tokenizeInternal(e,t);return s},r.prototype.tokenizeInternal=function(e,t){var i=this,n,s,o,a,l,c,u,g,f,h,p,C,y,B,v,D,L=e,H=L.length,j=0,$=0,V=this.hasCustom?0:Math.floor(e.length/10),W=new Array(V),_=[],A=this.trackStartLines?1:void 0,ae=this.trackStartLines?1:void 0,ge=(0,Xs.cloneEmptyGroups)(this.emptyGroups),re=this.trackStartLines,O=this.config.lineTerminatorsPattern,F=0,ue=[],he=[],ke=[],Fe=[];Object.freeze(Fe);var Ne=void 0;function oe(){return ue}function le(pr){var Ii=(0,Xs.charCodeToOptimizedIndex)(pr),es=he[Ii];return es===void 0?Fe:es}var we=function(pr){if(ke.length===1&&pr.tokenType.PUSH_MODE===void 0){var Ii=i.config.errorMessageProvider.buildUnableToPopLexerModeMessage(pr);_.push({offset:pr.startOffset,line:pr.startLine!==void 0?pr.startLine:void 0,column:pr.startColumn!==void 0?pr.startColumn:void 0,length:pr.image.length,message:Ii})}else{ke.pop();var es=(0,nr.last)(ke);ue=i.patternIdxToConfig[es],he=i.charCodeToPatternIdxToConfig[es],F=ue.length;var ua=i.canModeBeOptimized[es]&&i.config.safeMode===!1;he&&ua?Ne=le:Ne=oe}};function fe(pr){ke.push(pr),he=this.charCodeToPatternIdxToConfig[pr],ue=this.patternIdxToConfig[pr],F=ue.length,F=ue.length;var Ii=this.canModeBeOptimized[pr]&&this.config.safeMode===!1;he&&Ii?Ne=le:Ne=oe}fe.call(this,t);for(var Ae;j<H;){c=null;var qe=L.charCodeAt(j),ne=Ne(qe),Y=ne.length;for(n=0;n<Y;n++){Ae=ne[n];var pe=Ae.pattern;u=null;var ie=Ae.short;if(ie!==!1?qe===ie&&(c=pe):Ae.isCustom===!0?(D=pe.exec(L,j,W,ge),D!==null?(c=D[0],D.payload!==void 0&&(u=D.payload)):c=null):(this.updateLastIndex(pe,j),c=this.match(pe,e,j)),c!==null){if(l=Ae.longerAlt,l!==void 0){var de=l.length;for(o=0;o<de;o++){var _e=ue[l[o]],Pt=_e.pattern;if(g=null,_e.isCustom===!0?(D=Pt.exec(L,j,W,ge),D!==null?(a=D[0],D.payload!==void 0&&(g=D.payload)):a=null):(this.updateLastIndex(Pt,j),a=this.match(Pt,e,j)),a&&a.length>c.length){c=a,u=g,Ae=_e;break}}}break}}if(c!==null){if(f=c.length,h=Ae.group,h!==void 0&&(p=Ae.tokenTypeIdx,C=this.createTokenInstance(c,j,p,Ae.tokenType,A,ae,f),this.handlePayload(C,u),h===!1?$=this.addToken(W,$,C):ge[h].push(C)),e=this.chopInput(e,f),j=j+f,ae=this.computeNewColumn(ae,f),re===!0&&Ae.canLineTerminator===!0){var It=0,Or=void 0,ii=void 0;O.lastIndex=0;do Or=O.test(c),Or===!0&&(ii=O.lastIndex-1,It++);while(Or===!0);It!==0&&(A=A+It,ae=f-ii,this.updateTokenEndLineColumnLocation(C,h,ii,It,A,ae,f))}this.handleModes(Ae,we,fe,C)}else{for(var gi=j,hr=A,fi=ae,ni=!1;!ni&&j<H;)for(B=L.charCodeAt(j),e=this.chopInput(e,1),j++,s=0;s<F;s++){var Os=ue[s],pe=Os.pattern,ie=Os.short;if(ie!==!1?L.charCodeAt(j)===ie&&(ni=!0):Os.isCustom===!0?ni=pe.exec(L,j,W,ge)!==null:(this.updateLastIndex(pe,j),ni=pe.exec(e)!==null),ni===!0)break}y=j-gi,v=this.config.errorMessageProvider.buildUnexpectedCharactersMessage(L,gi,y,hr,fi),_.push({offset:gi,line:hr,column:fi,length:y,message:v})}}return this.hasCustom||(W.length=$),{tokens:W,groups:ge,errors:_}},r.prototype.handleModes=function(e,t,i,n){if(e.pop===!0){var s=e.push;t(n),s!==void 0&&i.call(this,s)}else e.push!==void 0&&i.call(this,e.push)},r.prototype.chopInput=function(e,t){return e.substring(t)},r.prototype.updateLastIndex=function(e,t){e.lastIndex=t},r.prototype.updateTokenEndLineColumnLocation=function(e,t,i,n,s,o,a){var l,c;t!==void 0&&(l=i===a-1,c=l?-1:0,n===1&&l===!0||(e.endLine=s+c,e.endColumn=o-1+-c))},r.prototype.computeNewColumn=function(e,t){return e+t},r.prototype.createTokenInstance=function(){for(var e=[],t=0;t<arguments.length;t++)e[t]=arguments[t];return null},r.prototype.createOffsetOnlyToken=function(e,t,i,n){return{image:e,startOffset:t,tokenTypeIdx:i,tokenType:n}},r.prototype.createStartOnlyToken=function(e,t,i,n,s,o){return{image:e,startOffset:t,startLine:s,startColumn:o,tokenTypeIdx:i,tokenType:n}},r.prototype.createFullToken=function(e,t,i,n,s,o,a){return{image:e,startOffset:t,endOffset:t+a-1,startLine:s,endLine:s,startColumn:o,endColumn:o+a-1,tokenTypeIdx:i,tokenType:n}},r.prototype.addToken=function(e,t,i){return 666},r.prototype.addTokenUsingPush=function(e,t,i){return e.push(i),t},r.prototype.addTokenUsingMemberAccess=function(e,t,i){return e[t]=i,t++,t},r.prototype.handlePayload=function(e,t){},r.prototype.handlePayloadNoCustom=function(e,t){},r.prototype.handlePayloadWithCustom=function(e,t){t!==null&&(e.payload=t)},r.prototype.match=function(e,t,i){return null},r.prototype.matchWithTest=function(e,t,i){var n=e.test(t);return n===!0?t.substring(i,e.lastIndex):null},r.prototype.matchWithExec=function(e,t){var i=e.exec(t);return i!==null?i[0]:i},r.prototype.TRACE_INIT=function(e,t){if(this.traceInitPerf===!0){this.traceInitIndent++;var i=new Array(this.traceInitIndent+1).join("	");this.traceInitIndent<this.traceInitMaxIdent&&console.log(i+"--> <"+e+">");var n=(0,nr.timer)(t),s=n.time,o=n.value,a=s>10?console.warn:console.log;return this.traceInitIndent<this.traceInitMaxIdent&&a(i+"<-- <"+e+"> time: "+s+"ms"),this.traceInitIndent--,o}else return t()},r.SKIPPED="This marks a skipped Token pattern, this means each token identified by it willbe consumed and then thrown into oblivion, this can be used to for example to completely ignore whitespace.",r.NA=/NOT_APPLICABLE/,r}();fc.Lexer=jEe});var NA=w(bi=>{"use strict";Object.defineProperty(bi,"__esModule",{value:!0});bi.tokenMatcher=bi.createTokenInstance=bi.EOF=bi.createToken=bi.hasTokenLabel=bi.tokenName=bi.tokenLabel=void 0;var Zs=Gt(),qEe=yd(),Hv=Vg();function JEe(r){return Ej(r)?r.LABEL:r.name}bi.tokenLabel=JEe;function WEe(r){return r.name}bi.tokenName=WEe;function Ej(r){return(0,Zs.isString)(r.LABEL)&&r.LABEL!==""}bi.hasTokenLabel=Ej;var zEe="parent",uj="categories",gj="label",fj="group",hj="push_mode",pj="pop_mode",dj="longer_alt",Cj="line_breaks",mj="start_chars_hint";function Ij(r){return VEe(r)}bi.createToken=Ij;function VEe(r){var e=r.pattern,t={};if(t.name=r.name,(0,Zs.isUndefined)(e)||(t.PATTERN=e),(0,Zs.has)(r,zEe))throw`The parent property is no longer supported.
+See: https://github.com/chevrotain/chevrotain/issues/564#issuecomment-349062346 for details.`;return(0,Zs.has)(r,uj)&&(t.CATEGORIES=r[uj]),(0,Hv.augmentTokenTypes)([t]),(0,Zs.has)(r,gj)&&(t.LABEL=r[gj]),(0,Zs.has)(r,fj)&&(t.GROUP=r[fj]),(0,Zs.has)(r,pj)&&(t.POP_MODE=r[pj]),(0,Zs.has)(r,hj)&&(t.PUSH_MODE=r[hj]),(0,Zs.has)(r,dj)&&(t.LONGER_ALT=r[dj]),(0,Zs.has)(r,Cj)&&(t.LINE_BREAKS=r[Cj]),(0,Zs.has)(r,mj)&&(t.START_CHARS_HINT=r[mj]),t}bi.EOF=Ij({name:"EOF",pattern:qEe.Lexer.NA});(0,Hv.augmentTokenTypes)([bi.EOF]);function XEe(r,e,t,i,n,s,o,a){return{image:e,startOffset:t,endOffset:i,startLine:n,endLine:s,startColumn:o,endColumn:a,tokenTypeIdx:r.tokenTypeIdx,tokenType:r}}bi.createTokenInstance=XEe;function ZEe(r,e){return(0,Hv.tokenStructuredMatcher)(r,e)}bi.tokenMatcher=ZEe});var dn=w(zt=>{"use strict";var va=zt&&zt.__extends||function(){var r=function(e,t){return r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(i,n){i.__proto__=n}||function(i,n){for(var s in 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+but found: '`+a+"'";if(n)return o+n+l;var c=(0,_s.reduce)(e,function(h,p){return h.concat(p)},[]),u=(0,_s.map)(c,function(h){return"["+(0,_s.map)(h,function(p){return(0,Zg.tokenLabel)(p)}).join(", ")+"]"}),g=(0,_s.map)(u,function(h,p){return"  "+(p+1)+". "+h}),f=`one of these possible Token sequences:
+`+g.join(`
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+but found: '`+o+"'";if(i)return s+i+a;var l=(0,_s.map)(e,function(u){return"["+(0,_s.map)(u,function(g){return(0,Zg.tokenLabel)(g)}).join(",")+"]"}),c=`expecting at least one iteration which starts with one of these possible Token sequences::
+  `+("<"+l.join(" ,")+">");return s+c+a}};Object.freeze(xa.defaultParserErrorProvider);xa.defaultGrammarResolverErrorProvider={buildRuleNotFoundError:function(r,e){var t="Invalid grammar, reference to a rule which is not defined: ->"+e.nonTerminalName+`<-
+inside top level rule: ->`+r.name+"<-";return t}};xa.defaultGrammarValidatorErrorProvider={buildDuplicateFoundError:function(r,e){function t(u){return u instanceof Wv.Terminal?u.terminalType.name:u instanceof Wv.NonTerminal?u.nonTerminalName:""}var i=r.name,n=(0,_s.first)(e),s=n.idx,o=(0,Hj.getProductionDslName)(n),a=t(n),l=s>0,c="->"+o+(l?s:"")+"<- "+(a?"with argument: ->"+a+"<-":"")+`
+                  appears more than once (`+e.length+" times) in the top level rule: ->"+i+`<-.                  
+                  For further details see: https://chevrotain.io/docs/FAQ.html#NUMERICAL_SUFFIXES 
+                  `;return c=c.replace(/[ \t]+/g," "),c=c.replace(/\s\s+/g,`
+`),c},buildNamespaceConflictError:function(r){var e=`Namespace conflict found in grammar.
+`+("The grammar has both a Terminal(Token) and a Non-Terminal(Rule) named: <"+r.name+`>.
+`)+`To resolve this make sure each Terminal and Non-Terminal names are unique
+This is easy to accomplish by using the convention that Terminal names start with an uppercase letter
+and Non-Terminal names start with a lower case letter.`;return e},buildAlternationPrefixAmbiguityError:function(r){var e=(0,_s.map)(r.prefixPath,function(n){return(0,Zg.tokenLabel)(n)}).join(", "),t=r.alternation.idx===0?"":r.alternation.idx,i="Ambiguous alternatives: <"+r.ambiguityIndices.join(" ,")+`> due to common lookahead prefix
+`+("in <OR"+t+"> inside <"+r.topLevelRule.name+`> Rule,
+`)+("<"+e+`> may appears as a prefix path in all these alternatives.
+`)+`See: https://chevrotain.io/docs/guide/resolving_grammar_errors.html#COMMON_PREFIX
+For Further details.`;return i},buildAlternationAmbiguityError:function(r){var e=(0,_s.map)(r.prefixPath,function(n){return(0,Zg.tokenLabel)(n)}).join(", "),t=r.alternation.idx===0?"":r.alternation.idx,i="Ambiguous Alternatives Detected: <"+r.ambiguityIndices.join(" ,")+"> in <OR"+t+">"+(" inside <"+r.topLevelRule.name+`> Rule,
+`)+("<"+e+`> may appears as a prefix path in all these alternatives.
+`);return i=i+`See: https://chevrotain.io/docs/guide/resolving_grammar_errors.html#AMBIGUOUS_ALTERNATIVES
+For Further details.`,i},buildEmptyRepetitionError:function(r){var e=(0,Hj.getProductionDslName)(r.repetition);r.repetition.idx!==0&&(e+=r.repetition.idx);var t="The repetition <"+e+"> within Rule <"+r.topLevelRule.name+`> can never consume any tokens.
+This could lead to an infinite loop.`;return t},buildTokenNameError:function(r){return"deprecated"},buildEmptyAlternationError:function(r){var e="Ambiguous empty alternative: <"+(r.emptyChoiceIdx+1)+">"+(" in <OR"+r.alternation.idx+"> inside <"+r.topLevelRule.name+`> Rule.
+`)+"Only the last alternative may be an empty alternative.";return e},buildTooManyAlternativesError:function(r){var e=`An Alternation cannot have more than 256 alternatives:
+`+("<OR"+r.alternation.idx+"> inside <"+r.topLevelRule.name+`> Rule.
+ has `+(r.alternation.definition.length+1)+" alternatives.");return e},buildLeftRecursionError:function(r){var e=r.topLevelRule.name,t=hIe.map(r.leftRecursionPath,function(s){return s.name}),i=e+" --> "+t.concat([e]).join(" --> "),n=`Left Recursion found in grammar.
+`+("rule: <"+e+`> can be invoked from itself (directly or indirectly)
+`)+(`without consuming any Tokens. The grammar path that causes this is: 
+ `+i+`
+`)+` To fix this refactor your grammar to remove the left recursion.
+see: https://en.wikipedia.org/wiki/LL_parser#Left_Factoring.`;return n},buildInvalidRuleNameError:function(r){return"deprecated"},buildDuplicateRuleNameError:function(r){var e;r.topLevelRule instanceof Wv.Rule?e=r.topLevelRule.name:e=r.topLevelRule;var t="Duplicate definition, rule: ->"+e+"<- is already defined in the grammar: ->"+r.grammarName+"<-";return t}}});var jj=w(LA=>{"use strict";var pIe=LA&&LA.__extends||function(){var r=function(e,t){return r=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(i,n){i.__proto__=n}||function(i,n){for(var s in n)Object.prototype.hasOwnProperty.call(n,s)&&(i[s]=n[s])},r(e,t)};return function(e,t){if(typeof t!="function"&&t!==null)throw new TypeError("Class extends value "+String(t)+" is not a constructor or null");r(e,t);function i(){this.constructor=e}e.prototype=t===null?Object.create(t):(i.prototype=t.prototype,new i)}}();Object.defineProperty(LA,"__esModule",{value:!0});LA.GastRefResolverVisitor=LA.resolveGrammar=void 0;var 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i=[],n=0;function s(c){return c.concat((0,Kt.drop)(r,n+1))}function o(c){var u=Wj(s(c),e,t);return i.concat(u)}for(;t.length<e&&n<r.length;){var a=r[n];if(a instanceof kt.Alternative)return o(a.definition);if(a instanceof kt.NonTerminal)return o(a.definition);if(a instanceof kt.Option)i=o(a.definition);else if(a instanceof kt.RepetitionMandatory){var l=a.definition.concat([new kt.Repetition({definition:a.definition})]);return o(l)}else if(a instanceof kt.RepetitionMandatoryWithSeparator){var l=[new kt.Alternative({definition:a.definition}),new kt.Repetition({definition:[new kt.Terminal({terminalType:a.separator})].concat(a.definition)})];return o(l)}else if(a instanceof kt.RepetitionWithSeparator){var l=a.definition.concat([new kt.Repetition({definition:[new kt.Terminal({terminalType:a.separator})].concat(a.definition)})]);i=o(l)}else if(a instanceof kt.Repetition){var l=a.definition.concat([new kt.Repetition({definition:a.definition})]);i=o(l)}else{if(a instanceof 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e=[];if(er.isEmpty(r))return e;var t=er.first(r);if(t instanceof $s.NonTerminal)e.push(t.referencedRule);else if(t instanceof $s.Alternative||t instanceof $s.Option||t instanceof $s.RepetitionMandatory||t instanceof $s.RepetitionMandatoryWithSeparator||t instanceof $s.RepetitionWithSeparator||t instanceof $s.Repetition)e=e.concat(Dd(t.definition));else if(t instanceof $s.Alternation)e=er.flatten(er.map(t.definition,function(o){return Dd(o.definition)}));else if(!(t instanceof $s.Terminal))throw Error("non exhaustive match");var i=(0,_v.isOptionalProd)(t),n=r.length>1;if(i&&n){var s=er.drop(r);return e.concat(Dd(s))}else return e}Vt.getFirstNoneTerminal=Dd;var tx=function(r){Zv(e,r);function e(){var t=r!==null&&r.apply(this,arguments)||this;return t.alternations=[],t}return e.prototype.visitAlternation=function(t){this.alternations.push(t)},e}($v.GAstVisitor);function sq(r,e){var t=new tx;r.accept(t);var i=t.alternations,n=er.reduce(i,function(s,o){var 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h=t.buildEmptyRepetitionError({topLevelRule:n,repetition:a});i.push({message:h,type:No.ParserDefinitionErrorType.NO_NON_EMPTY_LOOKAHEAD,ruleName:n.name})}})}),i}Vt.validateSomeNonEmptyLookaheadPath=lq;function HIe(r,e,t,i){var n=[],s=(0,br.reduce)(r,function(a,l,c){return e.definition[c].ignoreAmbiguities===!0||(0,br.forEach)(l,function(u){var g=[c];(0,br.forEach)(r,function(f,h){c!==h&&(0,_g.containsPath)(f,u)&&e.definition[h].ignoreAmbiguities!==!0&&g.push(h)}),g.length>1&&!(0,_g.containsPath)(n,u)&&(n.push(u),a.push({alts:g,path:u}))}),a},[]),o=er.map(s,function(a){var l=(0,br.map)(a.alts,function(u){return u+1}),c=i.buildAlternationAmbiguityError({topLevelRule:t,alternation:e,ambiguityIndices:l,prefixPath:a.path});return{message:c,type:No.ParserDefinitionErrorType.AMBIGUOUS_ALTS,ruleName:t.name,occurrence:e.idx,alternatives:[a.alts]}});return o}function cq(r,e,t,i){var n=[],s=(0,br.reduce)(r,function(o,a,l){var c=(0,br.map)(a,function(u){return{idx:l,path:u}});return 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r.prototype.initRecoverable=function(e){this.firstAfterRepMap={},this.resyncFollows={},this.recoveryEnabled=(0,gs.has)(e,"recoveryEnabled")?e.recoveryEnabled:tye.DEFAULT_PARSER_CONFIG.recoveryEnabled,this.recoveryEnabled&&(this.attemptInRepetitionRecovery=mq)},r.prototype.getTokenToInsert=function(e){var t=(0,gy.createTokenInstance)(e,"",NaN,NaN,NaN,NaN,NaN,NaN);return t.isInsertedInRecovery=!0,t},r.prototype.canTokenTypeBeInsertedInRecovery=function(e){return!0},r.prototype.tryInRepetitionRecovery=function(e,t,i,n){for(var s=this,o=this.findReSyncTokenType(),a=this.exportLexerState(),l=[],c=!1,u=this.LA(1),g=this.LA(1),f=function(){var h=s.LA(0),p=s.errorMessageProvider.buildMismatchTokenMessage({expected:n,actual:u,previous:h,ruleName:s.getCurrRuleFullName()}),C=new $Ie.MismatchedTokenException(p,u,s.LA(0));C.resyncedTokens=(0,gs.dropRight)(l),s.SAVE_ERROR(C)};!c;)if(this.tokenMatcher(g,n)){f();return}else if(i.call(this)){f(),e.apply(this,t);return}else 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i=this;if(!this.canTokenTypeBeInsertedInRecovery(e)||(0,gs.isEmpty)(t))return!1;var n=this.LA(1),s=(0,gs.find)(t,function(o){return i.tokenMatcher(n,o)})!==void 0;return s},r.prototype.canRecoverWithSingleTokenDeletion=function(e){var t=this.tokenMatcher(this.LA(2),e);return t},r.prototype.isInCurrentRuleReSyncSet=function(e){var t=this.getCurrFollowKey(),i=this.getFollowSetFromFollowKey(t);return(0,gs.contains)(i,e)},r.prototype.findReSyncTokenType=function(){for(var e=this.flattenFollowSet(),t=this.LA(1),i=2;;){var n=t.tokenType;if((0,gs.contains)(e,n))return n;t=this.LA(i),i++}},r.prototype.getCurrFollowKey=function(){if(this.RULE_STACK.length===1)return Ki.EOF_FOLLOW_KEY;var e=this.getLastExplicitRuleShortName(),t=this.getLastExplicitRuleOccurrenceIndex(),i=this.getPreviousExplicitRuleShortName();return{ruleName:this.shortRuleNameToFullName(e),idxInCallingRule:t,inRule:this.shortRuleNameToFullName(i)}},r.prototype.buildFullFollowKeyStack=function(){var e=this,t=this.RULE_STACK,i=this.RULE_OCCURRENCE_STACK;return(0,gs.map)(t,function(n,s){return s===0?Ki.EOF_FOLLOW_KEY:{ruleName:e.shortRuleNameToFullName(n),idxInCallingRule:i[s],inRule:e.shortRuleNameToFullName(t[s-1])}})},r.prototype.flattenFollowSet=function(){var e=this,t=(0,gs.map)(this.buildFullFollowKeyStack(),function(i){return e.getFollowSetFromFollowKey(i)});return(0,gs.flatten)(t)},r.prototype.getFollowSetFromFollowKey=function(e){if(e===Ki.EOF_FOLLOW_KEY)return[gy.EOF];var t=e.ruleName+e.idxInCallingRule+eye.IN+e.inRule;return this.resyncFollows[t]},r.prototype.addToResyncTokens=function(e,t){return this.tokenMatcher(e,gy.EOF)||t.push(e),t},r.prototype.reSyncTo=function(e){for(var t=[],i=this.LA(1);this.tokenMatcher(i,e)===!1;)i=this.SKIP_TOKEN(),this.addToResyncTokens(i,t);return(0,gs.dropRight)(t)},r.prototype.attemptInRepetitionRecovery=function(e,t,i,n,s,o,a){},r.prototype.getCurrentGrammarPath=function(e,t){var i=this.getHumanReadableRuleStack(),n=(0,gs.cloneArr)(this.RULE_OCCURRENCE_STACK),s={ruleStack:i,occurrenceStack:n,lastTok:e,lastTokOccurrence:t};return s},r.prototype.getHumanReadableRuleStack=function(){var e=this;return(0,gs.map)(this.RULE_STACK,function(t){return e.shortRuleNameToFullName(t)})},r}();Ki.Recoverable=rye;function mq(r,e,t,i,n,s,o){var a=this.getKeyForAutomaticLookahead(i,n),l=this.firstAfterRepMap[a];if(l===void 0){var c=this.getCurrRuleFullName(),u=this.getGAstProductions()[c],g=new s(u,n);l=g.startWalking(),this.firstAfterRepMap[a]=l}var f=l.token,h=l.occurrence,p=l.isEndOfRule;this.RULE_STACK.length===1&&p&&f===void 0&&(f=gy.EOF,h=1),this.shouldInRepetitionRecoveryBeTried(f,h,o)&&this.tryInRepetitionRecovery(r,e,t,f)}Ki.attemptInRepetitionRecovery=mq});var fy=w(Jt=>{"use 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this.atLeastOneInternal(1,e)},r.prototype.AT_LEAST_ONE2=function(e){this.atLeastOneInternal(2,e)},r.prototype.AT_LEAST_ONE3=function(e){this.atLeastOneInternal(3,e)},r.prototype.AT_LEAST_ONE4=function(e){this.atLeastOneInternal(4,e)},r.prototype.AT_LEAST_ONE5=function(e){this.atLeastOneInternal(5,e)},r.prototype.AT_LEAST_ONE6=function(e){this.atLeastOneInternal(6,e)},r.prototype.AT_LEAST_ONE7=function(e){this.atLeastOneInternal(7,e)},r.prototype.AT_LEAST_ONE8=function(e){this.atLeastOneInternal(8,e)},r.prototype.AT_LEAST_ONE9=function(e){this.atLeastOneInternal(9,e)},r.prototype.AT_LEAST_ONE_SEP=function(e){this.atLeastOneSepFirstInternal(0,e)},r.prototype.AT_LEAST_ONE_SEP1=function(e){this.atLeastOneSepFirstInternal(1,e)},r.prototype.AT_LEAST_ONE_SEP2=function(e){this.atLeastOneSepFirstInternal(2,e)},r.prototype.AT_LEAST_ONE_SEP3=function(e){this.atLeastOneSepFirstInternal(3,e)},r.prototype.AT_LEAST_ONE_SEP4=function(e){this.atLeastOneSepFirstInternal(4,e)},r.prototype.AT_LEAST_ONE_SEP5=function(e){this.atLeastOneSepFirstInternal(5,e)},r.prototype.AT_LEAST_ONE_SEP6=function(e){this.atLeastOneSepFirstInternal(6,e)},r.prototype.AT_LEAST_ONE_SEP7=function(e){this.atLeastOneSepFirstInternal(7,e)},r.prototype.AT_LEAST_ONE_SEP8=function(e){this.atLeastOneSepFirstInternal(8,e)},r.prototype.AT_LEAST_ONE_SEP9=function(e){this.atLeastOneSepFirstInternal(9,e)},r.prototype.RULE=function(e,t,i){if(i===void 0&&(i=Ax.DEFAULT_RULE_CONFIG),(0,Fq.contains)(this.definedRulesNames,e)){var n=Eye.defaultGrammarValidatorErrorProvider.buildDuplicateRuleNameError({topLevelRule:e,grammarName:this.className}),s={message:n,type:Ax.ParserDefinitionErrorType.DUPLICATE_RULE_NAME,ruleName:e};this.definitionErrors.push(s)}this.definedRulesNames.push(e);var o=this.defineRule(e,t,i);return this[e]=o,o},r.prototype.OVERRIDE_RULE=function(e,t,i){i===void 0&&(i=Ax.DEFAULT_RULE_CONFIG);var n=[];n=n.concat((0,Iye.validateRuleIsOverridden)(e,this.definedRulesNames,this.className)),this.definitionErrors=this.definitionErrors.concat(n);var s=this.defineRule(e,t,i);return this[e]=s,s},r.prototype.BACKTRACK=function(e,t){return function(){this.isBackTrackingStack.push(1);var i=this.saveRecogState();try{return e.apply(this,t),!0}catch(n){if((0,mye.isRecognitionException)(n))return!1;throw n}finally{this.reloadRecogState(i),this.isBackTrackingStack.pop()}}},r.prototype.getGAstProductions=function(){return this.gastProductionsCache},r.prototype.getSerializedGastProductions=function(){return(0,yye.serializeGrammar)((0,Fq.values)(this.gastProductionsCache))},r}();Cy.RecognizerApi=wye});var Mq=w(Ey=>{"use strict";Object.defineProperty(Ey,"__esModule",{value:!0});Ey.RecognizerEngine=void 0;var Pr=Gt(),Yn=fy(),my=ef(),Lq=Pd(),rf=xd(),Tq=Gn(),Bye=sx(),Oq=NA(),Fd=Vg(),Qye=ox(),bye=function(){function r(){}return r.prototype.initRecognizerEngine=function(e,t){if(this.className=(0,Qye.classNameFromInstance)(this),this.shortRuleNameToFull={},this.fullRuleNameToShort={},this.ruleShortNameIdx=256,this.tokenMatcher=Fd.tokenStructuredMatcherNoCategories,this.definedRulesNames=[],this.tokensMap={},this.isBackTrackingStack=[],this.RULE_STACK=[],this.RULE_OCCURRENCE_STACK=[],this.gastProductionsCache={},(0,Pr.has)(t,"serializedGrammar"))throw Error(`The Parser's configuration can no longer contain a <serializedGrammar> property.
+	See: https://chevrotain.io/docs/changes/BREAKING_CHANGES.html#_6-0-0
+	For Further details.`);if((0,Pr.isArray)(e)){if((0,Pr.isEmpty)(e))throw Error(`A Token Vocabulary cannot be empty.
+	Note that the first argument for the parser constructor
+	is no longer a Token vector (since v4.0).`);if(typeof e[0].startOffset=="number")throw Error(`The Parser constructor no longer accepts a token vector as the first argument.
+	See: https://chevrotain.io/docs/changes/BREAKING_CHANGES.html#_4-0-0
+	For Further details.`)}if((0,Pr.isArray)(e))this.tokensMap=(0,Pr.reduce)(e,function(o,a){return o[a.name]=a,o},{});else if((0,Pr.has)(e,"modes")&&(0,Pr.every)((0,Pr.flatten)((0,Pr.values)(e.modes)),Fd.isTokenType)){var i=(0,Pr.flatten)((0,Pr.values)(e.modes)),n=(0,Pr.uniq)(i);this.tokensMap=(0,Pr.reduce)(n,function(o,a){return o[a.name]=a,o},{})}else if((0,Pr.isObject)(e))this.tokensMap=(0,Pr.cloneObj)(e);else throw new Error("<tokensDictionary> argument must be An Array of Token constructors, A dictionary of Token constructors or an IMultiModeLexerDefinition");this.tokensMap.EOF=Oq.EOF;var s=(0,Pr.every)((0,Pr.values)(e),function(o){return(0,Pr.isEmpty)(o.categoryMatches)});this.tokenMatcher=s?Fd.tokenStructuredMatcherNoCategories:Fd.tokenStructuredMatcher,(0,Fd.augmentTokenTypes)((0,Pr.values)(this.tokensMap))},r.prototype.defineRule=function(e,t,i){if(this.selfAnalysisDone)throw Error("Grammar rule <"+e+`> may not be defined after the 'performSelfAnalysis' method has been called'
+Make sure that all grammar rule definitions are done before 'performSelfAnalysis' is called.`);var n=(0,Pr.has)(i,"resyncEnabled")?i.resyncEnabled:Tq.DEFAULT_RULE_CONFIG.resyncEnabled,s=(0,Pr.has)(i,"recoveryValueFunc")?i.recoveryValueFunc:Tq.DEFAULT_RULE_CONFIG.recoveryValueFunc,o=this.ruleShortNameIdx<<Yn.BITS_FOR_METHOD_TYPE+Yn.BITS_FOR_OCCURRENCE_IDX;this.ruleShortNameIdx++,this.shortRuleNameToFull[o]=e,this.fullRuleNameToShort[e]=o;function a(u){try{if(this.outputCst===!0){t.apply(this,u);var g=this.CST_STACK[this.CST_STACK.length-1];return this.cstPostRule(g),g}else return t.apply(this,u)}catch(f){return this.invokeRuleCatch(f,n,s)}finally{this.ruleFinallyStateUpdate()}}var l=function(u,g){return u===void 0&&(u=0),this.ruleInvocationStateUpdate(o,e,u),a.call(this,g)},c="ruleName";return l[c]=e,l.originalGrammarAction=t,l},r.prototype.invokeRuleCatch=function(e,t,i){var n=this.RULE_STACK.length===1,s=t&&!this.isBackTracking()&&this.recoveryEnabled;if((0,my.isRecognitionException)(e)){var o=e;if(s){var a=this.findReSyncTokenType();if(this.isInCurrentRuleReSyncSet(a))if(o.resyncedTokens=this.reSyncTo(a),this.outputCst){var l=this.CST_STACK[this.CST_STACK.length-1];return l.recoveredNode=!0,l}else return i();else{if(this.outputCst){var l=this.CST_STACK[this.CST_STACK.length-1];l.recoveredNode=!0,o.partialCstResult=l}throw o}}else{if(n)return this.moveToTerminatedState(),i();throw o}}else throw e},r.prototype.optionInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.OPTION_IDX,t);return this.optionInternalLogic(e,t,i)},r.prototype.optionInternalLogic=function(e,t,i){var n=this,s=this.getLaFuncFromCache(i),o,a;if(e.DEF!==void 0){if(o=e.DEF,a=e.GATE,a!==void 0){var l=s;s=function(){return a.call(n)&&l.call(n)}}}else o=e;if(s.call(this)===!0)return o.call(this)},r.prototype.atLeastOneInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.AT_LEAST_ONE_IDX,e);return this.atLeastOneInternalLogic(e,t,i)},r.prototype.atLeastOneInternalLogic=function(e,t,i){var n=this,s=this.getLaFuncFromCache(i),o,a;if(t.DEF!==void 0){if(o=t.DEF,a=t.GATE,a!==void 0){var l=s;s=function(){return a.call(n)&&l.call(n)}}}else o=t;if(s.call(this)===!0)for(var c=this.doSingleRepetition(o);s.call(this)===!0&&c===!0;)c=this.doSingleRepetition(o);else throw this.raiseEarlyExitException(e,Lq.PROD_TYPE.REPETITION_MANDATORY,t.ERR_MSG);this.attemptInRepetitionRecovery(this.atLeastOneInternal,[e,t],s,Yn.AT_LEAST_ONE_IDX,e,rf.NextTerminalAfterAtLeastOneWalker)},r.prototype.atLeastOneSepFirstInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.AT_LEAST_ONE_SEP_IDX,e);this.atLeastOneSepFirstInternalLogic(e,t,i)},r.prototype.atLeastOneSepFirstInternalLogic=function(e,t,i){var n=this,s=t.DEF,o=t.SEP,a=this.getLaFuncFromCache(i);if(a.call(this)===!0){s.call(this);for(var l=function(){return n.tokenMatcher(n.LA(1),o)};this.tokenMatcher(this.LA(1),o)===!0;)this.CONSUME(o),s.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,o,l,s,rf.NextTerminalAfterAtLeastOneSepWalker],l,Yn.AT_LEAST_ONE_SEP_IDX,e,rf.NextTerminalAfterAtLeastOneSepWalker)}else throw this.raiseEarlyExitException(e,Lq.PROD_TYPE.REPETITION_MANDATORY_WITH_SEPARATOR,t.ERR_MSG)},r.prototype.manyInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.MANY_IDX,e);return this.manyInternalLogic(e,t,i)},r.prototype.manyInternalLogic=function(e,t,i){var n=this,s=this.getLaFuncFromCache(i),o,a;if(t.DEF!==void 0){if(o=t.DEF,a=t.GATE,a!==void 0){var l=s;s=function(){return a.call(n)&&l.call(n)}}}else o=t;for(var c=!0;s.call(this)===!0&&c===!0;)c=this.doSingleRepetition(o);this.attemptInRepetitionRecovery(this.manyInternal,[e,t],s,Yn.MANY_IDX,e,rf.NextTerminalAfterManyWalker,c)},r.prototype.manySepFirstInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.MANY_SEP_IDX,e);this.manySepFirstInternalLogic(e,t,i)},r.prototype.manySepFirstInternalLogic=function(e,t,i){var n=this,s=t.DEF,o=t.SEP,a=this.getLaFuncFromCache(i);if(a.call(this)===!0){s.call(this);for(var l=function(){return n.tokenMatcher(n.LA(1),o)};this.tokenMatcher(this.LA(1),o)===!0;)this.CONSUME(o),s.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,o,l,s,rf.NextTerminalAfterManySepWalker],l,Yn.MANY_SEP_IDX,e,rf.NextTerminalAfterManySepWalker)}},r.prototype.repetitionSepSecondInternal=function(e,t,i,n,s){for(;i();)this.CONSUME(t),n.call(this);this.attemptInRepetitionRecovery(this.repetitionSepSecondInternal,[e,t,i,n,s],i,Yn.AT_LEAST_ONE_SEP_IDX,e,s)},r.prototype.doSingleRepetition=function(e){var t=this.getLexerPosition();e.call(this);var i=this.getLexerPosition();return i>t},r.prototype.orInternal=function(e,t){var i=this.getKeyForAutomaticLookahead(Yn.OR_IDX,t),n=(0,Pr.isArray)(e)?e:e.DEF,s=this.getLaFuncFromCache(i),o=s.call(this,n);if(o!==void 0){var a=n[o];return a.ALT.call(this)}this.raiseNoAltException(t,e.ERR_MSG)},r.prototype.ruleFinallyStateUpdate=function(){if(this.RULE_STACK.pop(),this.RULE_OCCURRENCE_STACK.pop(),this.cstFinallyStateUpdate(),this.RULE_STACK.length===0&&this.isAtEndOfInput()===!1){var e=this.LA(1),t=this.errorMessageProvider.buildNotAllInputParsedMessage({firstRedundant:e,ruleName:this.getCurrRuleFullName()});this.SAVE_ERROR(new my.NotAllInputParsedException(t,e))}},r.prototype.subruleInternal=function(e,t,i){var n;try{var s=i!==void 0?i.ARGS:void 0;return n=e.call(this,t,s),this.cstPostNonTerminal(n,i!==void 0&&i.LABEL!==void 0?i.LABEL:e.ruleName),n}catch(o){this.subruleInternalError(o,i,e.ruleName)}},r.prototype.subruleInternalError=function(e,t,i){throw(0,my.isRecognitionException)(e)&&e.partialCstResult!==void 0&&(this.cstPostNonTerminal(e.partialCstResult,t!==void 0&&t.LABEL!==void 0?t.LABEL:i),delete e.partialCstResult),e},r.prototype.consumeInternal=function(e,t,i){var n;try{var s=this.LA(1);this.tokenMatcher(s,e)===!0?(this.consumeToken(),n=s):this.consumeInternalError(e,s,i)}catch(o){n=this.consumeInternalRecovery(e,t,o)}return this.cstPostTerminal(i!==void 0&&i.LABEL!==void 0?i.LABEL:e.name,n),n},r.prototype.consumeInternalError=function(e,t,i){var n,s=this.LA(0);throw i!==void 0&&i.ERR_MSG?n=i.ERR_MSG:n=this.errorMessageProvider.buildMismatchTokenMessage({expected:e,actual:t,previous:s,ruleName:this.getCurrRuleFullName()}),this.SAVE_ERROR(new my.MismatchedTokenException(n,t,s))},r.prototype.consumeInternalRecovery=function(e,t,i){if(this.recoveryEnabled&&i.name==="MismatchedTokenException"&&!this.isBackTracking()){var n=this.getFollowsForInRuleRecovery(e,t);try{return this.tryInRuleRecovery(e,n)}catch(s){throw s.name===Bye.IN_RULE_RECOVERY_EXCEPTION?i:s}}else throw i},r.prototype.saveRecogState=function(){var e=this.errors,t=(0,Pr.cloneArr)(this.RULE_STACK);return{errors:e,lexerState:this.exportLexerState(),RULE_STACK:t,CST_STACK:this.CST_STACK}},r.prototype.reloadRecogState=function(e){this.errors=e.errors,this.importLexerState(e.lexerState),this.RULE_STACK=e.RULE_STACK},r.prototype.ruleInvocationStateUpdate=function(e,t,i){this.RULE_OCCURRENCE_STACK.push(i),this.RULE_STACK.push(e),this.cstInvocationStateUpdate(t,e)},r.prototype.isBackTracking=function(){return this.isBackTrackingStack.length!==0},r.prototype.getCurrRuleFullName=function(){var e=this.getLastExplicitRuleShortName();return this.shortRuleNameToFull[e]},r.prototype.shortRuleNameToFullName=function(e){return this.shortRuleNameToFull[e]},r.prototype.isAtEndOfInput=function(){return this.tokenMatcher(this.LA(1),Oq.EOF)},r.prototype.reset=function(){this.resetLexerState(),this.isBackTrackingStack=[],this.errors=[],this.RULE_STACK=[],this.CST_STACK=[],this.RULE_OCCURRENCE_STACK=[]},r}();Ey.RecognizerEngine=bye});var Uq=w(Iy=>{"use strict";Object.defineProperty(Iy,"__esModule",{value:!0});Iy.ErrorHandler=void 0;var lx=ef(),cx=Gt(),Kq=Pd(),Sye=Gn(),vye=function(){function r(){}return r.prototype.initErrorHandler=function(e){this._errors=[],this.errorMessageProvider=(0,cx.has)(e,"errorMessageProvider")?e.errorMessageProvider:Sye.DEFAULT_PARSER_CONFIG.errorMessageProvider},r.prototype.SAVE_ERROR=function(e){if((0,lx.isRecognitionException)(e))return e.context={ruleStack:this.getHumanReadableRuleStack(),ruleOccurrenceStack:(0,cx.cloneArr)(this.RULE_OCCURRENCE_STACK)},this._errors.push(e),e;throw Error("Trying to save an Error which is not a RecognitionException")},Object.defineProperty(r.prototype,"errors",{get:function(){return(0,cx.cloneArr)(this._errors)},set:function(e){this._errors=e},enumerable:!1,configurable:!0}),r.prototype.raiseEarlyExitException=function(e,t,i){for(var n=this.getCurrRuleFullName(),s=this.getGAstProductions()[n],o=(0,Kq.getLookaheadPathsForOptionalProd)(e,s,t,this.maxLookahead),a=o[0],l=[],c=1;c<=this.maxLookahead;c++)l.push(this.LA(c));var u=this.errorMessageProvider.buildEarlyExitMessage({expectedIterationPaths:a,actual:l,previous:this.LA(0),customUserDescription:i,ruleName:n});throw this.SAVE_ERROR(new lx.EarlyExitException(u,this.LA(1),this.LA(0)))},r.prototype.raiseNoAltException=function(e,t){for(var i=this.getCurrRuleFullName(),n=this.getGAstProductions()[i],s=(0,Kq.getLookaheadPathsForOr)(e,n,this.maxLookahead),o=[],a=1;a<=this.maxLookahead;a++)o.push(this.LA(a));var l=this.LA(0),c=this.errorMessageProvider.buildNoViableAltMessage({expectedPathsPerAlt:s,actual:o,previous:l,customUserDescription:t,ruleName:this.getCurrRuleFullName()});throw this.SAVE_ERROR(new lx.NoViableAltException(c,this.LA(1),l))},r}();Iy.ErrorHandler=vye});var Yq=w(yy=>{"use strict";Object.defineProperty(yy,"__esModule",{value:!0});yy.ContentAssist=void 0;var Hq=xd(),Gq=Gt(),xye=function(){function r(){}return r.prototype.initContentAssist=function(){},r.prototype.computeContentAssist=function(e,t){var i=this.gastProductionsCache[e];if((0,Gq.isUndefined)(i))throw Error("Rule ->"+e+"<- does not exist in this grammar.");return(0,Hq.nextPossibleTokensAfter)([i],t,this.tokenMatcher,this.maxLookahead)},r.prototype.getNextPossibleTokenTypes=function(e){var t=(0,Gq.first)(e.ruleStack),i=this.getGAstProductions(),n=i[t],s=new Hq.NextAfterTokenWalker(n,e).startWalking();return s},r}();yy.ContentAssist=xye});var Zq=w(Qy=>{"use strict";Object.defineProperty(Qy,"__esModule",{value:!0});Qy.GastRecorder=void 0;var En=Gt(),To=dn(),Pye=yd(),Wq=Vg(),zq=NA(),Dye=Gn(),kye=fy(),By={description:"This Object indicates the Parser is during Recording Phase"};Object.freeze(By);var jq=!0,qq=Math.pow(2,kye.BITS_FOR_OCCURRENCE_IDX)-1,Vq=(0,zq.createToken)({name:"RECORDING_PHASE_TOKEN",pattern:Pye.Lexer.NA});(0,Wq.augmentTokenTypes)([Vq]);var Xq=(0,zq.createTokenInstance)(Vq,`This IToken indicates the Parser is in Recording Phase
+	See: https://chevrotain.io/docs/guide/internals.html#grammar-recording for details`,-1,-1,-1,-1,-1,-1);Object.freeze(Xq);var Rye={name:`This CSTNode indicates the Parser is in Recording Phase
+	See: https://chevrotain.io/docs/guide/internals.html#grammar-recording for details`,children:{}},Fye=function(){function r(){}return r.prototype.initGastRecorder=function(e){this.recordingProdStack=[],this.RECORDING_PHASE=!1},r.prototype.enableRecording=function(){var e=this;this.RECORDING_PHASE=!0,this.TRACE_INIT("Enable Recording",function(){for(var t=function(n){var s=n>0?n:"";e["CONSUME"+s]=function(o,a){return this.consumeInternalRecord(o,n,a)},e["SUBRULE"+s]=function(o,a){return this.subruleInternalRecord(o,n,a)},e["OPTION"+s]=function(o){return this.optionInternalRecord(o,n)},e["OR"+s]=function(o){return this.orInternalRecord(o,n)},e["MANY"+s]=function(o){this.manyInternalRecord(n,o)},e["MANY_SEP"+s]=function(o){this.manySepFirstInternalRecord(n,o)},e["AT_LEAST_ONE"+s]=function(o){this.atLeastOneInternalRecord(n,o)},e["AT_LEAST_ONE_SEP"+s]=function(o){this.atLeastOneSepFirstInternalRecord(n,o)}},i=0;i<10;i++)t(i);e.consume=function(n,s,o){return this.consumeInternalRecord(s,n,o)},e.subrule=function(n,s,o){return this.subruleInternalRecord(s,n,o)},e.option=function(n,s){return this.optionInternalRecord(s,n)},e.or=function(n,s){return this.orInternalRecord(s,n)},e.many=function(n,s){this.manyInternalRecord(n,s)},e.atLeastOne=function(n,s){this.atLeastOneInternalRecord(n,s)},e.ACTION=e.ACTION_RECORD,e.BACKTRACK=e.BACKTRACK_RECORD,e.LA=e.LA_RECORD})},r.prototype.disableRecording=function(){var e=this;this.RECORDING_PHASE=!1,this.TRACE_INIT("Deleting Recording methods",function(){for(var t=0;t<10;t++){var i=t>0?t:"";delete e["CONSUME"+i],delete e["SUBRULE"+i],delete e["OPTION"+i],delete e["OR"+i],delete e["MANY"+i],delete e["MANY_SEP"+i],delete e["AT_LEAST_ONE"+i],delete e["AT_LEAST_ONE_SEP"+i]}delete e.consume,delete e.subrule,delete e.option,delete e.or,delete e.many,delete e.atLeastOne,delete e.ACTION,delete e.BACKTRACK,delete e.LA})},r.prototype.ACTION_RECORD=function(e){},r.prototype.BACKTRACK_RECORD=function(e,t){return function(){return!0}},r.prototype.LA_RECORD=function(e){return Dye.END_OF_FILE},r.prototype.topLevelRuleRecord=function(e,t){try{var i=new To.Rule({definition:[],name:e});return i.name=e,this.recordingProdStack.push(i),t.call(this),this.recordingProdStack.pop(),i}catch(n){if(n.KNOWN_RECORDER_ERROR!==!0)try{n.message=n.message+`
+	 This error was thrown during the "grammar recording phase" For more info see:
+	https://chevrotain.io/docs/guide/internals.html#grammar-recording`}catch{throw n}throw n}},r.prototype.optionInternalRecord=function(e,t){return Nd.call(this,To.Option,e,t)},r.prototype.atLeastOneInternalRecord=function(e,t){Nd.call(this,To.RepetitionMandatory,t,e)},r.prototype.atLeastOneSepFirstInternalRecord=function(e,t){Nd.call(this,To.RepetitionMandatoryWithSeparator,t,e,jq)},r.prototype.manyInternalRecord=function(e,t){Nd.call(this,To.Repetition,t,e)},r.prototype.manySepFirstInternalRecord=function(e,t){Nd.call(this,To.RepetitionWithSeparator,t,e,jq)},r.prototype.orInternalRecord=function(e,t){return Nye.call(this,e,t)},r.prototype.subruleInternalRecord=function(e,t,i){if(wy(t),!e||(0,En.has)(e,"ruleName")===!1){var n=new Error("<SUBRULE"+Jq(t)+"> argument is invalid"+(" expecting a Parser method reference but got: <"+JSON.stringify(e)+">")+(`
+ inside top level rule: <`+this.recordingProdStack[0].name+">"));throw n.KNOWN_RECORDER_ERROR=!0,n}var s=(0,En.peek)(this.recordingProdStack),o=e.ruleName,a=new To.NonTerminal({idx:t,nonTerminalName:o,label:i==null?void 0:i.LABEL,referencedRule:void 0});return s.definition.push(a),this.outputCst?Rye:By},r.prototype.consumeInternalRecord=function(e,t,i){if(wy(t),!(0,Wq.hasShortKeyProperty)(e)){var n=new Error("<CONSUME"+Jq(t)+"> argument is invalid"+(" expecting a TokenType reference but got: <"+JSON.stringify(e)+">")+(`
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+	Please use the <IGNORE_AMBIGUITIES> flag on the relevant DSL method instead.
+	See: https://chevrotain.io/docs/guide/resolving_grammar_errors.html#IGNORING_AMBIGUITIES
+	For further details.`);this.skipValidations=(0,_i.has)(t,"skipValidations")?t.skipValidations:dr.DEFAULT_PARSER_CONFIG.skipValidations}return r.performSelfAnalysis=function(e){throw Error("The **static** `performSelfAnalysis` method has been deprecated.	\nUse the **instance** method with the same name instead.")},r.prototype.performSelfAnalysis=function(){var e=this;this.TRACE_INIT("performSelfAnalysis",function(){var t;e.selfAnalysisDone=!0;var i=e.className;e.TRACE_INIT("toFastProps",function(){(0,_i.toFastProperties)(e)}),e.TRACE_INIT("Grammar Recording",function(){try{e.enableRecording(),(0,_i.forEach)(e.definedRulesNames,function(s){var o=e[s],a=o.originalGrammarAction,l=void 0;e.TRACE_INIT(s+" Rule",function(){l=e.topLevelRuleRecord(s,a)}),e.gastProductionsCache[s]=l})}finally{e.disableRecording()}});var n=[];if(e.TRACE_INIT("Grammar Resolving",function(){n=(0,rJ.resolveGrammar)({rules:(0,_i.values)(e.gastProductionsCache)}),e.definitionErrors=e.definitionErrors.concat(n)}),e.TRACE_INIT("Grammar Validations",function(){if((0,_i.isEmpty)(n)&&e.skipValidations===!1){var s=(0,rJ.validateGrammar)({rules:(0,_i.values)(e.gastProductionsCache),maxLookahead:e.maxLookahead,tokenTypes:(0,_i.values)(e.tokensMap),errMsgProvider:nJ.defaultGrammarValidatorErrorProvider,grammarName:i});e.definitionErrors=e.definitionErrors.concat(s)}}),(0,_i.isEmpty)(e.definitionErrors)&&(e.recoveryEnabled&&e.TRACE_INIT("computeAllProdsFollows",function(){var s=(0,Mye.computeAllProdsFollows)((0,_i.values)(e.gastProductionsCache));e.resyncFollows=s}),e.TRACE_INIT("ComputeLookaheadFunctions",function(){e.preComputeLookaheadFunctions((0,_i.values)(e.gastProductionsCache))})),!r.DEFER_DEFINITION_ERRORS_HANDLING&&!(0,_i.isEmpty)(e.definitionErrors))throw t=(0,_i.map)(e.definitionErrors,function(s){return s.message}),new Error(`Parser Definition Errors detected:
+ `+t.join(`
+-------------------------------
+`))})},r.DEFER_DEFINITION_ERRORS_HANDLING=!1,r}();dr.Parser=vy;(0,Vye.applyMixins)(vy,[Kye.Recoverable,Uye.LooksAhead,Hye.TreeBuilder,Gye.LexerAdapter,jye.RecognizerEngine,Yye.RecognizerApi,qye.ErrorHandler,Jye.ContentAssist,Wye.GastRecorder,zye.PerformanceTracer]);var _ye=function(r){iJ(e,r);function e(t,i){i===void 0&&(i=dr.DEFAULT_PARSER_CONFIG);var n=this,s=(0,_i.cloneObj)(i);return s.outputCst=!0,n=r.call(this,t,s)||this,n}return e}(vy);dr.CstParser=_ye;var $ye=function(r){iJ(e,r);function e(t,i){i===void 0&&(i=dr.DEFAULT_PARSER_CONFIG);var n=this,s=(0,_i.cloneObj)(i);return s.outputCst=!1,n=r.call(this,t,s)||this,n}return e}(vy);dr.EmbeddedActionsParser=$ye});var oJ=w(xy=>{"use strict";Object.defineProperty(xy,"__esModule",{value:!0});xy.createSyntaxDiagramsCode=void 0;var sJ=Dv();function ewe(r,e){var t=e===void 0?{}:e,i=t.resourceBase,n=i===void 0?"https://unpkg.com/chevrotain@"+sJ.VERSION+"/diagrams/":i,s=t.css,o=s===void 0?"https://unpkg.com/chevrotain@"+sJ.VERSION+"/diagrams/diagrams.css":s,a=`
+<!-- This is a generated file -->
+<!DOCTYPE html>
+<meta charset="utf-8">
+<style>
+  body {
+    background-color: hsl(30, 20%, 95%)
+  }
+</style>
+
+`,l=`
+<link rel='stylesheet' href='`+o+`'>
+`,c=`
+<script src='`+n+`vendor/railroad-diagrams.js'><\/script>
+<script src='`+n+`src/diagrams_builder.js'><\/script>
+<script src='`+n+`src/diagrams_behavior.js'><\/script>
+<script src='`+n+`src/main.js'><\/script>
+`,u=`
+<div id="diagrams" align="center"></div>    
+`,g=`
+<script>
+    window.serializedGrammar = `+JSON.stringify(r,null,"  ")+`;
+<\/script>
+`,f=`
+<script>
+    var diagramsDiv = document.getElementById("diagrams");
+    main.drawDiagramsFromSerializedGrammar(serializedGrammar, diagramsDiv);
+<\/script>
+`;return a+l+c+u+g+f}xy.createSyntaxDiagramsCode=ewe});var lJ=w(We=>{"use strict";Object.defineProperty(We,"__esModule",{value:!0});We.Parser=We.createSyntaxDiagramsCode=We.clearCache=We.GAstVisitor=We.serializeProduction=We.serializeGrammar=We.Terminal=We.Rule=We.RepetitionWithSeparator=We.RepetitionMandatoryWithSeparator=We.RepetitionMandatory=We.Repetition=We.Option=We.NonTerminal=We.Alternative=We.Alternation=We.defaultLexerErrorProvider=We.NoViableAltException=We.NotAllInputParsedException=We.MismatchedTokenException=We.isRecognitionException=We.EarlyExitException=We.defaultParserErrorProvider=We.tokenName=We.tokenMatcher=We.tokenLabel=We.EOF=We.createTokenInstance=We.createToken=We.LexerDefinitionErrorType=We.Lexer=We.EMPTY_ALT=We.ParserDefinitionErrorType=We.EmbeddedActionsParser=We.CstParser=We.VERSION=void 0;var twe=Dv();Object.defineProperty(We,"VERSION",{enumerable:!0,get:function(){return twe.VERSION}});var Py=Gn();Object.defineProperty(We,"CstParser",{enumerable:!0,get:function(){return Py.CstParser}});Object.defineProperty(We,"EmbeddedActionsParser",{enumerable:!0,get:function(){return Py.EmbeddedActionsParser}});Object.defineProperty(We,"ParserDefinitionErrorType",{enumerable:!0,get:function(){return Py.ParserDefinitionErrorType}});Object.defineProperty(We,"EMPTY_ALT",{enumerable:!0,get:function(){return Py.EMPTY_ALT}});var aJ=yd();Object.defineProperty(We,"Lexer",{enumerable:!0,get:function(){return aJ.Lexer}});Object.defineProperty(We,"LexerDefinitionErrorType",{enumerable:!0,get:function(){return aJ.LexerDefinitionErrorType}});var nf=NA();Object.defineProperty(We,"createToken",{enumerable:!0,get:function(){return nf.createToken}});Object.defineProperty(We,"createTokenInstance",{enumerable:!0,get:function(){return nf.createTokenInstance}});Object.defineProperty(We,"EOF",{enumerable:!0,get:function(){return nf.EOF}});Object.defineProperty(We,"tokenLabel",{enumerable:!0,get:function(){return nf.tokenLabel}});Object.defineProperty(We,"tokenMatcher",{enumerable:!0,get:function(){return nf.tokenMatcher}});Object.defineProperty(We,"tokenName",{enumerable:!0,get:function(){return nf.tokenName}});var rwe=Sd();Object.defineProperty(We,"defaultParserErrorProvider",{enumerable:!0,get:function(){return rwe.defaultParserErrorProvider}});var Ld=ef();Object.defineProperty(We,"EarlyExitException",{enumerable:!0,get:function(){return Ld.EarlyExitException}});Object.defineProperty(We,"isRecognitionException",{enumerable:!0,get:function(){return Ld.isRecognitionException}});Object.defineProperty(We,"MismatchedTokenException",{enumerable:!0,get:function(){return Ld.MismatchedTokenException}});Object.defineProperty(We,"NotAllInputParsedException",{enumerable:!0,get:function(){return Ld.NotAllInputParsedException}});Object.defineProperty(We,"NoViableAltException",{enumerable:!0,get:function(){return Ld.NoViableAltException}});var iwe=Uv();Object.defineProperty(We,"defaultLexerErrorProvider",{enumerable:!0,get:function(){return iwe.defaultLexerErrorProvider}});var Oo=dn();Object.defineProperty(We,"Alternation",{enumerable:!0,get:function(){return Oo.Alternation}});Object.defineProperty(We,"Alternative",{enumerable:!0,get:function(){return Oo.Alternative}});Object.defineProperty(We,"NonTerminal",{enumerable:!0,get:function(){return Oo.NonTerminal}});Object.defineProperty(We,"Option",{enumerable:!0,get:function(){return Oo.Option}});Object.defineProperty(We,"Repetition",{enumerable:!0,get:function(){return Oo.Repetition}});Object.defineProperty(We,"RepetitionMandatory",{enumerable:!0,get:function(){return Oo.RepetitionMandatory}});Object.defineProperty(We,"RepetitionMandatoryWithSeparator",{enumerable:!0,get:function(){return Oo.RepetitionMandatoryWithSeparator}});Object.defineProperty(We,"RepetitionWithSeparator",{enumerable:!0,get:function(){return Oo.RepetitionWithSeparator}});Object.defineProperty(We,"Rule",{enumerable:!0,get:function(){return Oo.Rule}});Object.defineProperty(We,"Terminal",{enumerable:!0,get:function(){return Oo.Terminal}});var AJ=dn();Object.defineProperty(We,"serializeGrammar",{enumerable:!0,get:function(){return AJ.serializeGrammar}});Object.defineProperty(We,"serializeProduction",{enumerable:!0,get:function(){return AJ.serializeProduction}});var nwe=Xg();Object.defineProperty(We,"GAstVisitor",{enumerable:!0,get:function(){return nwe.GAstVisitor}});function swe(){console.warn(`The clearCache function was 'soft' removed from the Chevrotain API.
+	 It performs no action other than printing this message.
+	 Please avoid using it as it will be completely removed in the future`)}We.clearCache=swe;var owe=oJ();Object.defineProperty(We,"createSyntaxDiagramsCode",{enumerable:!0,get:function(){return owe.createSyntaxDiagramsCode}});var awe=function(){function r(){throw new Error(`The Parser class has been deprecated, use CstParser or EmbeddedActionsParser instead.	
+See: https://chevrotain.io/docs/changes/BREAKING_CHANGES.html#_7-0-0`)}return r}();We.Parser=awe});var gJ=w((Met,uJ)=>{var Dy=lJ(),ka=Dy.createToken,cJ=Dy.tokenMatcher,ux=Dy.Lexer,Awe=Dy.EmbeddedActionsParser;uJ.exports=r=>{let e=ka({name:"LogicalOperator",pattern:ux.NA}),t=ka({name:"Or",pattern:/\|/,categories:e}),i=ka({name:"Xor",pattern:/\^/,categories:e}),n=ka({name:"And",pattern:/&/,categories:e}),s=ka({name:"Not",pattern:/!/}),o=ka({name:"LParen",pattern:/\(/}),a=ka({name:"RParen",pattern:/\)/}),l=ka({name:"Query",pattern:r}),u=[ka({name:"WhiteSpace",pattern:/\s+/,group:ux.SKIPPED}),t,i,n,o,a,s,e,l],g=new ux(u);class f extends Awe{constructor(p){super(u),this.RULE("expression",()=>this.SUBRULE(this.logicalExpression)),this.RULE("logicalExpression",()=>{let y=this.SUBRULE(this.atomicExpression);return this.MANY(()=>{let 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gx=w((Het,CJ)=>{var Td=pJ(),dJ={};for(let r of Object.keys(Td))dJ[Td[r]]=r;var st={rgb:{channels:3,labels:"rgb"},hsl:{channels:3,labels:"hsl"},hsv:{channels:3,labels:"hsv"},hwb:{channels:3,labels:"hwb"},cmyk:{channels:4,labels:"cmyk"},xyz:{channels:3,labels:"xyz"},lab:{channels:3,labels:"lab"},lch:{channels:3,labels:"lch"},hex:{channels:1,labels:["hex"]},keyword:{channels:1,labels:["keyword"]},ansi16:{channels:1,labels:["ansi16"]},ansi256:{channels:1,labels:["ansi256"]},hcg:{channels:3,labels:["h","c","g"]},apple:{channels:3,labels:["r16","g16","b16"]},gray:{channels:1,labels:["gray"]}};CJ.exports=st;for(let r of Object.keys(st)){if(!("channels"in st[r]))throw new Error("missing channels property: "+r);if(!("labels"in st[r]))throw new Error("missing channel labels property: "+r);if(st[r].labels.length!==st[r].channels)throw new Error("channel and label counts mismatch: "+r);let{channels:e,labels:t}=st[r];delete st[r].channels,delete st[r].labels,Object.defineProperty(st[r],"channels",{value:e}),Object.defineProperty(st[r],"labels",{value:t})}st.rgb.hsl=function(r){let e=r[0]/255,t=r[1]/255,i=r[2]/255,n=Math.min(e,t,i),s=Math.max(e,t,i),o=s-n,a,l;s===n?a=0:e===s?a=(t-i)/o:t===s?a=2+(i-e)/o:i===s&&(a=4+(e-t)/o),a=Math.min(a*60,360),a<0&&(a+=360);let c=(n+s)/2;return s===n?l=0:c<=.5?l=o/(s+n):l=o/(2-s-n),[a,l*100,c*100]};st.rgb.hsv=function(r){let e,t,i,n,s,o=r[0]/255,a=r[1]/255,l=r[2]/255,c=Math.max(o,a,l),u=c-Math.min(o,a,l),g=function(f){return(c-f)/6/u+1/2};return u===0?(n=0,s=0):(s=u/c,e=g(o),t=g(a),i=g(l),o===c?n=i-t:a===c?n=1/3+e-i:l===c&&(n=2/3+t-e),n<0?n+=1:n>1&&(n-=1)),[n*360,s*100,c*100]};st.rgb.hwb=function(r){let e=r[0],t=r[1],i=r[2],n=st.rgb.hsl(r)[0],s=1/255*Math.min(e,Math.min(t,i));return i=1-1/255*Math.max(e,Math.max(t,i)),[n,s*100,i*100]};st.rgb.cmyk=function(r){let e=r[0]/255,t=r[1]/255,i=r[2]/255,n=Math.min(1-e,1-t,1-i),s=(1-e-n)/(1-n)||0,o=(1-t-n)/(1-n)||0,a=(1-i-n)/(1-n)||0;return[s*100,o*100,a*100,n*100]};function cwe(r,e){return(r[0]-e[0])**2+(r[1]-e[1])**2+(r[2]-e[2])**2}st.rgb.keyword=function(r){let e=dJ[r];if(e)return e;let t=1/0,i;for(let n of Object.keys(Td)){let s=Td[n],o=cwe(r,s);o<t&&(t=o,i=n)}return i};st.keyword.rgb=function(r){return Td[r]};st.rgb.xyz=function(r){let e=r[0]/255,t=r[1]/255,i=r[2]/255;e=e>.04045?((e+.055)/1.055)**2.4:e/12.92,t=t>.04045?((t+.055)/1.055)**2.4:t/12.92,i=i>.04045?((i+.055)/1.055)**2.4:i/12.92;let n=e*.4124+t*.3576+i*.1805,s=e*.2126+t*.7152+i*.0722,o=e*.0193+t*.1192+i*.9505;return[n*100,s*100,o*100]};st.rgb.lab=function(r){let e=st.rgb.xyz(r),t=e[0],i=e[1],n=e[2];t/=95.047,i/=100,n/=108.883,t=t>.008856?t**(1/3):7.787*t+16/116,i=i>.008856?i**(1/3):7.787*i+16/116,n=n>.008856?n**(1/3):7.787*n+16/116;let s=116*i-16,o=500*(t-i),a=200*(i-n);return[s,o,a]};st.hsl.rgb=function(r){let e=r[0]/360,t=r[1]/100,i=r[2]/100,n,s,o;if(t===0)return o=i*255,[o,o,o];i<.5?n=i*(1+t):n=i+t-i*t;let a=2*i-n,l=[0,0,0];for(let c=0;c<3;c++)s=e+1/3*-(c-1),s<0&&s++,s>1&&s--,6*s<1?o=a+(n-a)*6*s:2*s<1?o=n:3*s<2?o=a+(n-a)*(2/3-s)*6:o=a,l[c]=o*255;return l};st.hsl.hsv=function(r){let e=r[0],t=r[1]/100,i=r[2]/100,n=t,s=Math.max(i,.01);i*=2,t*=i<=1?i:2-i,n*=s<=1?s:2-s;let o=(i+t)/2,a=i===0?2*n/(s+n):2*t/(i+t);return[e,a*100,o*100]};st.hsv.rgb=function(r){let e=r[0]/60,t=r[1]/100,i=r[2]/100,n=Math.floor(e)%6,s=e-Math.floor(e),o=255*i*(1-t),a=255*i*(1-t*s),l=255*i*(1-t*(1-s));switch(i*=255,n){case 0:return[i,l,o];case 1:return[a,i,o];case 2:return[o,i,l];case 3:return[o,a,i];case 4:return[l,o,i];case 5:return[i,o,a]}};st.hsv.hsl=function(r){let e=r[0],t=r[1]/100,i=r[2]/100,n=Math.max(i,.01),s,o;o=(2-t)*i;let a=(2-t)*n;return s=t*n,s/=a<=1?a:2-a,s=s||0,o/=2,[e,s*100,o*100]};st.hwb.rgb=function(r){let e=r[0]/360,t=r[1]/100,i=r[2]/100,n=t+i,s;n>1&&(t/=n,i/=n);let o=Math.floor(6*e),a=1-i;s=6*e-o,(o&1)!==0&&(s=1-s);let l=t+s*(a-t),c,u,g;switch(o){default:case 6:case 0:c=a,u=l,g=t;break;case 1:c=l,u=a,g=t;break;case 2:c=t,u=a,g=l;break;case 3:c=t,u=l,g=a;break;case 4:c=l,u=t,g=a;break;case 5:c=a,u=t,g=l;break}return[c*255,u*255,g*255]};st.cmyk.rgb=function(r){let e=r[0]/100,t=r[1]/100,i=r[2]/100,n=r[3]/100,s=1-Math.min(1,e*(1-n)+n),o=1-Math.min(1,t*(1-n)+n),a=1-Math.min(1,i*(1-n)+n);return[s*255,o*255,a*255]};st.xyz.rgb=function(r){let e=r[0]/100,t=r[1]/100,i=r[2]/100,n,s,o;return n=e*3.2406+t*-1.5372+i*-.4986,s=e*-.9689+t*1.8758+i*.0415,o=e*.0557+t*-.204+i*1.057,n=n>.0031308?1.055*n**(1/2.4)-.055:n*12.92,s=s>.0031308?1.055*s**(1/2.4)-.055:s*12.92,o=o>.0031308?1.055*o**(1/2.4)-.055:o*12.92,n=Math.min(Math.max(0,n),1),s=Math.min(Math.max(0,s),1),o=Math.min(Math.max(0,o),1),[n*255,s*255,o*255]};st.xyz.lab=function(r){let 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st.rgb.ansi16(st.hsv.rgb(r),r[2])};st.rgb.ansi256=function(r){let e=r[0],t=r[1],i=r[2];return e===t&&t===i?e<8?16:e>248?231:Math.round((e-8)/247*24)+232:16+36*Math.round(e/255*5)+6*Math.round(t/255*5)+Math.round(i/255*5)};st.ansi16.rgb=function(r){let e=r%10;if(e===0||e===7)return r>50&&(e+=3.5),e=e/10.5*255,[e,e,e];let t=(~~(r>50)+1)*.5,i=(e&1)*t*255,n=(e>>1&1)*t*255,s=(e>>2&1)*t*255;return[i,n,s]};st.ansi256.rgb=function(r){if(r>=232){let s=(r-232)*10+8;return[s,s,s]}r-=16;let e,t=Math.floor(r/36)/5*255,i=Math.floor((e=r%36)/6)/5*255,n=e%6/5*255;return[t,i,n]};st.rgb.hex=function(r){let t=(((Math.round(r[0])&255)<<16)+((Math.round(r[1])&255)<<8)+(Math.round(r[2])&255)).toString(16).toUpperCase();return"000000".substring(t.length)+t};st.hex.rgb=function(r){let e=r.toString(16).match(/[a-f0-9]{6}|[a-f0-9]{3}/i);if(!e)return[0,0,0];let t=e[0];e[0].length===3&&(t=t.split("").map(a=>a+a).join(""));let i=parseInt(t,16),n=i>>16&255,s=i>>8&255,o=i&255;return[n,s,o]};st.rgb.hcg=function(r){let e=r[0]/255,t=r[1]/255,i=r[2]/255,n=Math.max(Math.max(e,t),i),s=Math.min(Math.min(e,t),i),o=n-s,a,l;return o<1?a=s/(1-o):a=0,o<=0?l=0:n===e?l=(t-i)/o%6:n===t?l=2+(i-e)/o:l=4+(e-t)/o,l/=6,l%=1,[l*360,o*100,a*100]};st.hsl.hcg=function(r){let e=r[1]/100,t=r[2]/100,i=t<.5?2*e*t:2*e*(1-t),n=0;return i<1&&(n=(t-.5*i)/(1-i)),[r[0],i*100,n*100]};st.hsv.hcg=function(r){let e=r[1]/100,t=r[2]/100,i=e*t,n=0;return i<1&&(n=(t-i)/(1-i)),[r[0],i*100,n*100]};st.hcg.rgb=function(r){let e=r[0]/360,t=r[1]/100,i=r[2]/100;if(t===0)return[i*255,i*255,i*255];let n=[0,0,0],s=e%1*6,o=s%1,a=1-o,l=0;switch(Math.floor(s)){case 0:n[0]=1,n[1]=o,n[2]=0;break;case 1:n[0]=a,n[1]=1,n[2]=0;break;case 2:n[0]=0,n[1]=1,n[2]=o;break;case 3:n[0]=0,n[1]=a,n[2]=1;break;case 4:n[0]=o,n[1]=0,n[2]=1;break;default:n[0]=1,n[1]=0,n[2]=a}return l=(1-t)*i,[(t*n[0]+l)*255,(t*n[1]+l)*255,(t*n[2]+l)*255]};st.hcg.hsv=function(r){let e=r[1]/100,t=r[2]/100,i=e+t*(1-e),n=0;return i>0&&(n=e/i),[r[0],n*100,i*100]};st.hcg.hsl=function(r){let e=r[1]/100,i=r[2]/100*(1-e)+.5*e,n=0;return i>0&&i<.5?n=e/(2*i):i>=.5&&i<1&&(n=e/(2*(1-i))),[r[0],n*100,i*100]};st.hcg.hwb=function(r){let e=r[1]/100,t=r[2]/100,i=e+t*(1-e);return[r[0],(i-e)*100,(1-i)*100]};st.hwb.hcg=function(r){let e=r[1]/100,t=r[2]/100,i=1-t,n=i-e,s=0;return n<1&&(s=(i-n)/(1-n)),[r[0],n*100,s*100]};st.apple.rgb=function(r){return[r[0]/65535*255,r[1]/65535*255,r[2]/65535*255]};st.rgb.apple=function(r){return[r[0]/255*65535,r[1]/255*65535,r[2]/255*65535]};st.gray.rgb=function(r){return[r[0]/100*255,r[0]/100*255,r[0]/100*255]};st.gray.hsl=function(r){return[0,0,r[0]]};st.gray.hsv=st.gray.hsl;st.gray.hwb=function(r){return[0,100,r[0]]};st.gray.cmyk=function(r){return[0,0,0,r[0]]};st.gray.lab=function(r){return[r[0],0,0]};st.gray.hex=function(r){let e=Math.round(r[0]/100*255)&255,i=((e<<16)+(e<<8)+e).toString(16).toUpperCase();return"000000".substring(i.length)+i};st.rgb.gray=function(r){return[(r[0]+r[1]+r[2])/3/255*100]}});var EJ=w((Get,mJ)=>{var Ry=gx();function uwe(){let r={},e=Object.keys(Ry);for(let t=e.length,i=0;i<t;i++)r[e[i]]={distance:-1,parent:null};return r}function gwe(r){let e=uwe(),t=[r];for(e[r].distance=0;t.length;){let i=t.pop(),n=Object.keys(Ry[i]);for(let s=n.length,o=0;o<s;o++){let a=n[o],l=e[a];l.distance===-1&&(l.distance=e[i].distance+1,l.parent=i,t.unshift(a))}}return e}function fwe(r,e){return function(t){return e(r(t))}}function hwe(r,e){let t=[e[r].parent,r],i=Ry[e[r].parent][r],n=e[r].parent;for(;e[n].parent;)t.unshift(e[n].parent),i=fwe(Ry[e[n].parent][n],i),n=e[n].parent;return i.conversion=t,i}mJ.exports=function(r){let e=gwe(r),t={},i=Object.keys(e);for(let n=i.length,s=0;s<n;s++){let o=i[s];e[o].parent!==null&&(t[o]=hwe(o,e))}return t}});var yJ=w((Yet,IJ)=>{var 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t,i;if(e.path){if(e.pathname)throw new TypeError("Parameters `path` and `pathname` are mutually exclusive.");if(e.search)throw new TypeError("Parameters `path` and `search` are mutually exclusive.");if(e.searchParams)throw new TypeError("Parameters `path` and `searchParams` are mutually exclusive.")}if(e.search&&e.searchParams)throw new TypeError("Parameters `search` and `searchParams` are mutually exclusive.");if(!r){if(!e.protocol)throw new TypeError("No URL protocol specified");r=`${e.protocol}//${(i=(t=e.hostname)!==null&&t!==void 0?t:e.host)!==null&&i!==void 0?i:""}`}let n=new GPe.URL(r);if(e.path){let s=e.path.indexOf("?");s===-1?e.pathname=e.path:(e.pathname=e.path.slice(0,s),e.search=e.path.slice(s+1)),delete e.path}for(let s of YPe)e[s]&&(n[s]=e[s].toString());return n}});var Z5=w(AR=>{"use strict";Object.defineProperty(AR,"__esModule",{value:!0});var aR=class{constructor(){this.weakMap=new WeakMap,this.map=new Map}set(e,t){typeof e=="object"?this.weakMap.set(e,t):this.map.set(e,t)}get(e){return typeof e=="object"?this.weakMap.get(e):this.map.get(e)}has(e){return typeof e=="object"?this.weakMap.has(e):this.map.has(e)}};AR.default=aR});var cR=w(lR=>{"use strict";Object.defineProperty(lR,"__esModule",{value:!0});var jPe=async r=>{let e=[],t=0;for await(let i of r)e.push(i),t+=Buffer.byteLength(i);return Buffer.isBuffer(e[0])?Buffer.concat(e,t):Buffer.from(e.join(""))};lR.default=jPe});var $5=w(Fc=>{"use strict";Object.defineProperty(Fc,"__esModule",{value:!0});Fc.dnsLookupIpVersionToFamily=Fc.isDnsLookupIpVersion=void 0;var _5={auto:0,ipv4:4,ipv6:6};Fc.isDnsLookupIpVersion=r=>r in _5;Fc.dnsLookupIpVersionToFamily=r=>{if(Fc.isDnsLookupIpVersion(r))return _5[r];throw new Error("Invalid DNS lookup IP version")}});var uR=w(_w=>{"use strict";Object.defineProperty(_w,"__esModule",{value:!0});_w.isResponseOk=void 0;_w.isResponseOk=r=>{let{statusCode:e}=r,t=r.request.options.followRedirect?299:399;return e>=200&&e<=t||e===304}});var t6=w(gR=>{"use strict";Object.defineProperty(gR,"__esModule",{value:!0});var e6=new Set;gR.default=r=>{e6.has(r)||(e6.add(r),process.emitWarning(`Got: ${r}`,{type:"DeprecationWarning"}))}});var r6=w(fR=>{"use strict";Object.defineProperty(fR,"__esModule",{value:!0});var mr=Ha(),qPe=(r,e)=>{if(mr.default.null_(r.encoding))throw new TypeError("To get a Buffer, set `options.responseType` to `buffer` instead");mr.assert.any([mr.default.string,mr.default.undefined],r.encoding),mr.assert.any([mr.default.boolean,mr.default.undefined],r.resolveBodyOnly),mr.assert.any([mr.default.boolean,mr.default.undefined],r.methodRewriting),mr.assert.any([mr.default.boolean,mr.default.undefined],r.isStream),mr.assert.any([mr.default.string,mr.default.undefined],r.responseType),r.responseType===void 0&&(r.responseType="text");let{retry:t}=r;if(e?r.retry={...e.retry}:r.retry={calculateDelay:i=>i.computedValue,limit:0,methods:[],statusCodes:[],errorCodes:[],maxRetryAfter:void 0},mr.default.object(t)?(r.retry={...r.retry,...t},r.retry.methods=[...new Set(r.retry.methods.map(i=>i.toUpperCase()))],r.retry.statusCodes=[...new Set(r.retry.statusCodes)],r.retry.errorCodes=[...new Set(r.retry.errorCodes)]):mr.default.number(t)&&(r.retry.limit=t),mr.default.undefined(r.retry.maxRetryAfter)&&(r.retry.maxRetryAfter=Math.min(...[r.timeout.request,r.timeout.connect].filter(mr.default.number))),mr.default.object(r.pagination)){e&&(r.pagination={...e.pagination,...r.pagination});let{pagination:i}=r;if(!mr.default.function_(i.transform))throw new Error("`options.pagination.transform` must be implemented");if(!mr.default.function_(i.shouldContinue))throw new Error("`options.pagination.shouldContinue` must be implemented");if(!mr.default.function_(i.filter))throw new TypeError("`options.pagination.filter` must be implemented");if(!mr.default.function_(i.paginate))throw new Error("`options.pagination.paginate` must be implemented")}return r.responseType==="json"&&r.headers.accept===void 0&&(r.headers.accept="application/json"),r};fR.default=qPe});var i6=w(IC=>{"use strict";Object.defineProperty(IC,"__esModule",{value:!0});IC.retryAfterStatusCodes=void 0;IC.retryAfterStatusCodes=new Set([413,429,503]);var JPe=({attemptCount:r,retryOptions:e,error:t,retryAfter:i})=>{if(r>e.limit)return 0;let n=e.methods.includes(t.options.method),s=e.errorCodes.includes(t.code),o=t.response&&e.statusCodes.includes(t.response.statusCode);if(!n||!s&&!o)return 0;if(t.response){if(i)return e.maxRetryAfter===void 0||i>e.maxRetryAfter?0:i;if(t.response.statusCode===413)return 0}let a=Math.random()*100;return 2**(r-1)*1e3+a};IC.default=JPe});var BC=w(Yt=>{"use strict";Object.defineProperty(Yt,"__esModule",{value:!0});Yt.UnsupportedProtocolError=Yt.ReadError=Yt.TimeoutError=Yt.UploadError=Yt.CacheError=Yt.HTTPError=Yt.MaxRedirectsError=Yt.RequestError=Yt.setNonEnumerableProperties=Yt.knownHookEvents=Yt.withoutBody=Yt.kIsNormalizedAlready=void 0;var n6=J("util"),s6=J("stream"),WPe=J("fs"),zA=J("url"),o6=J("http"),hR=J("http"),zPe=J("https"),VPe=yz(),XPe=xz(),a6=o5(),ZPe=c5(),_Pe=K5(),$Pe=Ww(),Ee=Ha(),eDe=j5(),A6=eR(),tDe=iR(),l6=W5(),rDe=V5(),c6=X5(),iDe=Z5(),nDe=cR(),u6=$5(),sDe=uR(),VA=t6(),oDe=r6(),aDe=i6(),pR,Pi=Symbol("request"),tB=Symbol("response"),Kf=Symbol("responseSize"),Uf=Symbol("downloadedSize"),Hf=Symbol("bodySize"),Gf=Symbol("uploadedSize"),$w=Symbol("serverResponsesPiped"),g6=Symbol("unproxyEvents"),f6=Symbol("isFromCache"),dR=Symbol("cancelTimeouts"),h6=Symbol("startedReading"),Yf=Symbol("stopReading"),eB=Symbol("triggerRead"),XA=Symbol("body"),yC=Symbol("jobs"),p6=Symbol("originalResponse"),d6=Symbol("retryTimeout");Yt.kIsNormalizedAlready=Symbol("isNormalizedAlready");var ADe=Ee.default.string(process.versions.brotli);Yt.withoutBody=new Set(["GET","HEAD"]);Yt.knownHookEvents=["init","beforeRequest","beforeRedirect","beforeError","beforeRetry","afterResponse"];function lDe(r){for(let e in r){let t=r[e];if(!Ee.default.string(t)&&!Ee.default.number(t)&&!Ee.default.boolean(t)&&!Ee.default.null_(t)&&!Ee.default.undefined(t))throw new TypeError(`The \`searchParams\` value '${String(t)}' must be a string, number, boolean or null`)}}function cDe(r){return Ee.default.object(r)&&!("statusCode"in r)}var CR=new iDe.default,uDe=async r=>new Promise((e,t)=>{let i=n=>{t(n)};r.pending||e(),r.once("error",i),r.once("ready",()=>{r.off("error",i),e()})}),gDe=new Set([300,301,302,303,304,307,308]),fDe=["context","body","json","form"];Yt.setNonEnumerableProperties=(r,e)=>{let t={};for(let i of r)if(!!i)for(let n of fDe)n in i&&(t[n]={writable:!0,configurable:!0,enumerable:!1,value:i[n]});Object.defineProperties(e,t)};var ei=class extends Error{constructor(e,t,i){var n;if(super(e),Error.captureStackTrace(this,this.constructor),this.name="RequestError",this.code=t.code,i instanceof AB?(Object.defineProperty(this,"request",{enumerable:!1,value:i}),Object.defineProperty(this,"response",{enumerable:!1,value:i[tB]}),Object.defineProperty(this,"options",{enumerable:!1,value:i.options})):Object.defineProperty(this,"options",{enumerable:!1,value:i}),this.timings=(n=this.request)===null||n===void 0?void 0:n.timings,Ee.default.string(t.stack)&&Ee.default.string(this.stack)){let s=this.stack.indexOf(this.message)+this.message.length,o=this.stack.slice(s).split(`
+`).reverse(),a=t.stack.slice(t.stack.indexOf(t.message)+t.message.length).split(`
+`).reverse();for(;a.length!==0&&a[0]===o[0];)o.shift();this.stack=`${this.stack.slice(0,s)}${o.reverse().join(`
+`)}${a.reverse().join(`
+`)}`}}};Yt.RequestError=ei;var rB=class extends ei{constructor(e){super(`Redirected ${e.options.maxRedirects} times. Aborting.`,{},e),this.name="MaxRedirectsError"}};Yt.MaxRedirectsError=rB;var iB=class extends ei{constructor(e){super(`Response code ${e.statusCode} (${e.statusMessage})`,{},e.request),this.name="HTTPError"}};Yt.HTTPError=iB;var nB=class extends ei{constructor(e,t){super(e.message,e,t),this.name="CacheError"}};Yt.CacheError=nB;var sB=class extends ei{constructor(e,t){super(e.message,e,t),this.name="UploadError"}};Yt.UploadError=sB;var oB=class extends ei{constructor(e,t,i){super(e.message,e,i),this.name="TimeoutError",this.event=e.event,this.timings=t}};Yt.TimeoutError=oB;var wC=class extends ei{constructor(e,t){super(e.message,e,t),this.name="ReadError"}};Yt.ReadError=wC;var aB=class extends ei{constructor(e){super(`Unsupported protocol "${e.url.protocol}"`,{},e),this.name="UnsupportedProtocolError"}};Yt.UnsupportedProtocolError=aB;var hDe=["socket","connect","continue","information","upgrade","timeout"],AB=class extends s6.Duplex{constructor(e,t={},i){super({autoDestroy:!1,highWaterMark:0}),this[Uf]=0,this[Gf]=0,this.requestInitialized=!1,this[$w]=new Set,this.redirects=[],this[Yf]=!1,this[eB]=!1,this[yC]=[],this.retryCount=0,this._progressCallbacks=[];let n=()=>this._unlockWrite(),s=()=>this._lockWrite();this.on("pipe",c=>{c.prependListener("data",n),c.on("data",s),c.prependListener("end",n),c.on("end",s)}),this.on("unpipe",c=>{c.off("data",n),c.off("data",s),c.off("end",n),c.off("end",s)}),this.on("pipe",c=>{c instanceof hR.IncomingMessage&&(this.options.headers={...c.headers,...this.options.headers})});let{json:o,body:a,form:l}=t;if((o||a||l)&&this._lockWrite(),Yt.kIsNormalizedAlready in t)this.options=t;else try{this.options=this.constructor.normalizeArguments(e,t,i)}catch(c){Ee.default.nodeStream(t.body)&&t.body.destroy(),this.destroy(c);return}(async()=>{var c;try{this.options.body instanceof WPe.ReadStream&&await uDe(this.options.body);let{url:u}=this.options;if(!u)throw new TypeError("Missing `url` property");if(this.requestUrl=u.toString(),decodeURI(this.requestUrl),await this._finalizeBody(),await this._makeRequest(),this.destroyed){(c=this[Pi])===null||c===void 0||c.destroy();return}for(let g of this[yC])g();this[yC].length=0,this.requestInitialized=!0}catch(u){if(u instanceof ei){this._beforeError(u);return}this.destroyed||this.destroy(u)}})()}static normalizeArguments(e,t,i){var n,s,o,a,l;let c=t;if(Ee.default.object(e)&&!Ee.default.urlInstance(e))t={...i,...e,...t};else{if(e&&t&&t.url!==void 0)throw new TypeError("The `url` option is mutually exclusive with the `input` argument");t={...i,...t},e!==void 0&&(t.url=e),Ee.default.urlInstance(t.url)&&(t.url=new zA.URL(t.url.toString()))}if(t.cache===!1&&(t.cache=void 0),t.dnsCache===!1&&(t.dnsCache=void 0),Ee.assert.any([Ee.default.string,Ee.default.undefined],t.method),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.headers),Ee.assert.any([Ee.default.string,Ee.default.urlInstance,Ee.default.undefined],t.prefixUrl),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.cookieJar),Ee.assert.any([Ee.default.object,Ee.default.string,Ee.default.undefined],t.searchParams),Ee.assert.any([Ee.default.object,Ee.default.string,Ee.default.undefined],t.cache),Ee.assert.any([Ee.default.object,Ee.default.number,Ee.default.undefined],t.timeout),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.context),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.hooks),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.decompress),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.ignoreInvalidCookies),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.followRedirect),Ee.assert.any([Ee.default.number,Ee.default.undefined],t.maxRedirects),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.throwHttpErrors),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.http2),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.allowGetBody),Ee.assert.any([Ee.default.string,Ee.default.undefined],t.localAddress),Ee.assert.any([u6.isDnsLookupIpVersion,Ee.default.undefined],t.dnsLookupIpVersion),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.https),Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.rejectUnauthorized),t.https&&(Ee.assert.any([Ee.default.boolean,Ee.default.undefined],t.https.rejectUnauthorized),Ee.assert.any([Ee.default.function_,Ee.default.undefined],t.https.checkServerIdentity),Ee.assert.any([Ee.default.string,Ee.default.object,Ee.default.array,Ee.default.undefined],t.https.certificateAuthority),Ee.assert.any([Ee.default.string,Ee.default.object,Ee.default.array,Ee.default.undefined],t.https.key),Ee.assert.any([Ee.default.string,Ee.default.object,Ee.default.array,Ee.default.undefined],t.https.certificate),Ee.assert.any([Ee.default.string,Ee.default.undefined],t.https.passphrase),Ee.assert.any([Ee.default.string,Ee.default.buffer,Ee.default.array,Ee.default.undefined],t.https.pfx)),Ee.assert.any([Ee.default.object,Ee.default.undefined],t.cacheOptions),Ee.default.string(t.method)?t.method=t.method.toUpperCase():t.method="GET",t.headers===(i==null?void 0:i.headers)?t.headers={...t.headers}:t.headers=$Pe({...i==null?void 0:i.headers,...t.headers}),"slashes"in t)throw new TypeError("The legacy `url.Url` has been deprecated. Use `URL` instead.");if("auth"in t)throw new TypeError("Parameter `auth` is deprecated. Use `username` / `password` instead.");if("searchParams"in t&&t.searchParams&&t.searchParams!==(i==null?void 0:i.searchParams)){let h;if(Ee.default.string(t.searchParams)||t.searchParams instanceof zA.URLSearchParams)h=new zA.URLSearchParams(t.searchParams);else{lDe(t.searchParams),h=new zA.URLSearchParams;for(let p in t.searchParams){let C=t.searchParams[p];C===null?h.append(p,""):C!==void 0&&h.append(p,C)}}(n=i==null?void 0:i.searchParams)===null||n===void 0||n.forEach((p,C)=>{h.has(C)||h.append(C,p)}),t.searchParams=h}if(t.username=(s=t.username)!==null&&s!==void 0?s:"",t.password=(o=t.password)!==null&&o!==void 0?o:"",Ee.default.undefined(t.prefixUrl)?t.prefixUrl=(a=i==null?void 0:i.prefixUrl)!==null&&a!==void 0?a:"":(t.prefixUrl=t.prefixUrl.toString(),t.prefixUrl!==""&&!t.prefixUrl.endsWith("/")&&(t.prefixUrl+="/")),Ee.default.string(t.url)){if(t.url.startsWith("/"))throw new Error("`input` must not start with a slash when using `prefixUrl`");t.url=c6.default(t.prefixUrl+t.url,t)}else(Ee.default.undefined(t.url)&&t.prefixUrl!==""||t.protocol)&&(t.url=c6.default(t.prefixUrl,t));if(t.url){"port"in t&&delete t.port;let{prefixUrl:h}=t;Object.defineProperty(t,"prefixUrl",{set:C=>{let y=t.url;if(!y.href.startsWith(C))throw new Error(`Cannot change \`prefixUrl\` from ${h} to ${C}: ${y.href}`);t.url=new zA.URL(C+y.href.slice(h.length)),h=C},get:()=>h});let{protocol:p}=t.url;if(p==="unix:"&&(p="http:",t.url=new zA.URL(`http://unix${t.url.pathname}${t.url.search}`)),t.searchParams&&(t.url.search=t.searchParams.toString()),p!=="http:"&&p!=="https:")throw new aB(t);t.username===""?t.username=t.url.username:t.url.username=t.username,t.password===""?t.password=t.url.password:t.url.password=t.password}let{cookieJar:u}=t;if(u){let{setCookie:h,getCookieString:p}=u;Ee.assert.function_(h),Ee.assert.function_(p),h.length===4&&p.length===0&&(h=n6.promisify(h.bind(t.cookieJar)),p=n6.promisify(p.bind(t.cookieJar)),t.cookieJar={setCookie:h,getCookieString:p})}let{cache:g}=t;if(g&&(CR.has(g)||CR.set(g,new a6((h,p)=>{let C=h[Pi](h,p);return Ee.default.promise(C)&&(C.once=(y,B)=>{if(y==="error")C.catch(B);else if(y==="abort")(async()=>{try{(await C).once("abort",B)}catch{}})();else throw new Error(`Unknown HTTP2 promise event: ${y}`);return C}),C},g))),t.cacheOptions={...t.cacheOptions},t.dnsCache===!0)pR||(pR=new XPe.default),t.dnsCache=pR;else if(!Ee.default.undefined(t.dnsCache)&&!t.dnsCache.lookup)throw new TypeError(`Parameter \`dnsCache\` must be a CacheableLookup instance or a boolean, got ${Ee.default(t.dnsCache)}`);Ee.default.number(t.timeout)?t.timeout={request:t.timeout}:i&&t.timeout!==i.timeout?t.timeout={...i.timeout,...t.timeout}:t.timeout={...t.timeout},t.context||(t.context={});let f=t.hooks===(i==null?void 0:i.hooks);t.hooks={...t.hooks};for(let h of Yt.knownHookEvents)if(h in t.hooks)if(Ee.default.array(t.hooks[h]))t.hooks[h]=[...t.hooks[h]];else throw new TypeError(`Parameter \`${h}\` must be an Array, got ${Ee.default(t.hooks[h])}`);else t.hooks[h]=[];if(i&&!f)for(let h of Yt.knownHookEvents)i.hooks[h].length>0&&(t.hooks[h]=[...i.hooks[h],...t.hooks[h]]);if("family"in t&&VA.default('"options.family" was never documented, please use "options.dnsLookupIpVersion"'),i!=null&&i.https&&(t.https={...i.https,...t.https}),"rejectUnauthorized"in t&&VA.default('"options.rejectUnauthorized" is now deprecated, please use "options.https.rejectUnauthorized"'),"checkServerIdentity"in t&&VA.default('"options.checkServerIdentity" was never documented, please use "options.https.checkServerIdentity"'),"ca"in t&&VA.default('"options.ca" was never documented, please use "options.https.certificateAuthority"'),"key"in t&&VA.default('"options.key" was never documented, please use "options.https.key"'),"cert"in t&&VA.default('"options.cert" was never documented, please use "options.https.certificate"'),"passphrase"in t&&VA.default('"options.passphrase" was never documented, please use "options.https.passphrase"'),"pfx"in t&&VA.default('"options.pfx" was never documented, please use "options.https.pfx"'),"followRedirects"in t)throw new TypeError("The `followRedirects` option does not exist. Use `followRedirect` instead.");if(t.agent){for(let h in t.agent)if(h!=="http"&&h!=="https"&&h!=="http2")throw new TypeError(`Expected the \`options.agent\` properties to be \`http\`, \`https\` or \`http2\`, got \`${h}\``)}return t.maxRedirects=(l=t.maxRedirects)!==null&&l!==void 0?l:0,Yt.setNonEnumerableProperties([i,c],t),oDe.default(t,i)}_lockWrite(){let e=()=>{throw new TypeError("The payload has been already provided")};this.write=e,this.end=e}_unlockWrite(){this.write=super.write,this.end=super.end}async _finalizeBody(){let{options:e}=this,{headers:t}=e,i=!Ee.default.undefined(e.form),n=!Ee.default.undefined(e.json),s=!Ee.default.undefined(e.body),o=i||n||s,a=Yt.withoutBody.has(e.method)&&!(e.method==="GET"&&e.allowGetBody);if(this._cannotHaveBody=a,o){if(a)throw new TypeError(`The \`${e.method}\` method cannot be used with a body`);if([s,i,n].filter(l=>l).length>1)throw new TypeError("The `body`, `json` and `form` options are mutually exclusive");if(s&&!(e.body instanceof 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lg(d){try{if(d==Io&&V)return new Uint8Array(V);var E=pa(d);if(E)return E;if(C)return C(d);throw"sync fetching of the wasm failed: you can preload it to Module['wasmBinary'] manually, or emcc.py will do that for you when generating HTML (but not JS)"}catch(I){wr(I)}}function wp(d,E){var I,k,T;try{T=lg(d),k=new WebAssembly.Module(T),I=new WebAssembly.Instance(k,E)}catch(te){var Z=te.toString();throw D("failed to compile wasm module: "+Z),(Z.includes("imported Memory")||Z.includes("memory import"))&&D("Memory size incompatibility issues may be due to changing INITIAL_MEMORY at runtime to something too large. 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S.ErrnoError(wo.EOPNOTSUPP)},mmap:function(d,E,I,k,T,Z){if(d.stream_ops)return Ks.mmap(d,E,I,k,T,Z);if(E!==0)throw new S.ErrnoError(28);var te=is(I);return S.read(d,ne,te,I,k),{ptr:te,allocated:!0}},msync:function(d,E,I,k,T){return d.stream_ops?Ks.msync(d,E,I,k,T):(T&2||S.write(d,E,0,k,I),0)},munmap:function(){return 0},ioctl:function(){throw new S.ErrnoError(wo.ENOTTY)}},S={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:!1,ignorePermissions:!0,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath:function(d,E){if(d=Rn.resolve(S.cwd(),d),E=E||{},!d)return{path:"",node:null};var I={follow_mount:!0,recurse_count:0};for(var k in I)E[k]===void 0&&(E[k]=I[k]);if(E.recurse_count>8)throw new S.ErrnoError(32);for(var T=Qt.normalizeArray(d.split("/").filter(function(lt){return!!lt}),!1),Z=S.root,te="/",Be=0;Be<T.length;Be++){var me=Be===T.length-1;if(me&&E.parent)break;if(Z=S.lookupNode(Z,T[Be]),te=Qt.join2(te,T[Be]),S.isMountpoint(Z)&&(!me||me&&E.follow_mount)&&(Z=Z.mounted.root),!me||E.follow)for(var Je=0;S.isLink(Z.mode);){var nt=S.readlink(te);te=Rn.resolve(Qt.dirname(te),nt);var wt=S.lookupPath(te,{recurse_count:E.recurse_count});if(Z=wt.node,Je++>40)throw new S.ErrnoError(32)}}return{path:te,node:Z}},getPath:function(d){for(var E;;){if(S.isRoot(d)){var I=d.mount.mountpoint;return E?I[I.length-1]!=="/"?I+"/"+E:I+E:I}E=E?d.name+"/"+E:d.name,d=d.parent}},hashName:function(d,E){for(var I=0,k=0;k<E.length;k++)I=(I<<5)-I+E.charCodeAt(k)|0;return(d+I>>>0)%S.nameTable.length},hashAddNode:function(d){var E=S.hashName(d.parent.id,d.name);d.name_next=S.nameTable[E],S.nameTable[E]=d},hashRemoveNode:function(d){var E=S.hashName(d.parent.id,d.name);if(S.nameTable[E]===d)S.nameTable[E]=d.name_next;else for(var I=S.nameTable[E];I;){if(I.name_next===d){I.name_next=d.name_next;break}I=I.name_next}},lookupNode:function(d,E){var I=S.mayLookup(d);if(I)throw new S.ErrnoError(I,d);for(var k=S.hashName(d.id,E),T=S.nameTable[k];T;T=T.name_next){var Z=T.name;if(T.parent.id===d.id&&Z===E)return T}return S.lookup(d,E)},createNode:function(d,E,I,k){var T=new S.FSNode(d,E,I,k);return S.hashAddNode(T),T},destroyNode:function(d){S.hashRemoveNode(d)},isRoot:function(d){return d===d.parent},isMountpoint:function(d){return!!d.mounted},isFile:function(d){return(d&61440)===32768},isDir:function(d){return(d&61440)===16384},isLink:function(d){return(d&61440)===40960},isChrdev:function(d){return(d&61440)===8192},isBlkdev:function(d){return(d&61440)===24576},isFIFO:function(d){return(d&61440)===4096},isSocket:function(d){return(d&49152)===49152},flagModes:{r:0,"r+":2,w:577,"w+":578,a:1089,"a+":1090},modeStringToFlags:function(d){var E=S.flagModes[d];if(typeof E>"u")throw new Error("Unknown file open mode: "+d);return E},flagsToPermissionString:function(d){var E=["r","w","rw"][d&3];return d&512&&(E+="w"),E},nodePermissions:function(d,E){return S.ignorePermissions?0:E.includes("r")&&!(d.mode&292)||E.includes("w")&&!(d.mode&146)||E.includes("x")&&!(d.mode&73)?2:0},mayLookup:function(d){var E=S.nodePermissions(d,"x");return E||(d.node_ops.lookup?0:2)},mayCreate:function(d,E){try{var I=S.lookupNode(d,E);return 20}catch{}return S.nodePermissions(d,"wx")},mayDelete:function(d,E,I){var k;try{k=S.lookupNode(d,E)}catch(Z){return Z.errno}var T=S.nodePermissions(d,"wx");if(T)return T;if(I){if(!S.isDir(k.mode))return 54;if(S.isRoot(k)||S.getPath(k)===S.cwd())return 10}else if(S.isDir(k.mode))return 31;return 0},mayOpen:function(d,E){return d?S.isLink(d.mode)?32:S.isDir(d.mode)&&(S.flagsToPermissionString(E)!=="r"||E&512)?31:S.nodePermissions(d,S.flagsToPermissionString(E)):44},MAX_OPEN_FDS:4096,nextfd:function(d,E){d=d||0,E=E||S.MAX_OPEN_FDS;for(var I=d;I<=E;I++)if(!S.streams[I])return I;throw new S.ErrnoError(33)},getStream:function(d){return S.streams[d]},createStream:function(d,E,I){S.FSStream||(S.FSStream=function(){},S.FSStream.prototype={object:{get:function(){return this.node},set:function(te){this.node=te}},isRead:{get:function(){return(this.flags&2097155)!==1}},isWrite:{get:function(){return(this.flags&2097155)!==0}},isAppend:{get:function(){return this.flags&1024}}});var k=new S.FSStream;for(var T in d)k[T]=d[T];d=k;var Z=S.nextfd(E,I);return d.fd=Z,S.streams[Z]=d,d},closeStream:function(d){S.streams[d]=null},chrdev_stream_ops:{open:function(d){var E=S.getDevice(d.node.rdev);d.stream_ops=E.stream_ops,d.stream_ops.open&&d.stream_ops.open(d)},llseek:function(){throw new S.ErrnoError(70)}},major:function(d){return d>>8},minor:function(d){return d&255},makedev:function(d,E){return d<<8|E},registerDevice:function(d,E){S.devices[d]={stream_ops:E}},getDevice:function(d){return S.devices[d]},getMounts:function(d){for(var E=[],I=[d];I.length;){var k=I.pop();E.push(k),I.push.apply(I,k.mounts)}return E},syncfs:function(d,E){typeof d=="function"&&(E=d,d=!1),S.syncFSRequests++,S.syncFSRequests>1&&D("warning: "+S.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work");var I=S.getMounts(S.root.mount),k=0;function T(te){return S.syncFSRequests--,E(te)}function Z(te){if(te)return Z.errored?void 0:(Z.errored=!0,T(te));++k>=I.length&&T(null)}I.forEach(function(te){if(!te.type.syncfs)return Z(null);te.type.syncfs(te,d,Z)})},mount:function(d,E,I){var k=I==="/",T=!I,Z;if(k&&S.root)throw new S.ErrnoError(10);if(!k&&!T){var te=S.lookupPath(I,{follow_mount:!1});if(I=te.path,Z=te.node,S.isMountpoint(Z))throw new S.ErrnoError(10);if(!S.isDir(Z.mode))throw new S.ErrnoError(54)}var Be={type:d,opts:E,mountpoint:I,mounts:[]},me=d.mount(Be);return me.mount=Be,Be.root=me,k?S.root=me:Z&&(Z.mounted=Be,Z.mount&&Z.mount.mounts.push(Be)),me},unmount:function(d){var E=S.lookupPath(d,{follow_mount:!1});if(!S.isMountpoint(E.node))throw new S.ErrnoError(28);var I=E.node,k=I.mounted,T=S.getMounts(k);Object.keys(S.nameTable).forEach(function(te){for(var Be=S.nameTable[te];Be;){var me=Be.name_next;T.includes(Be.mount)&&S.destroyNode(Be),Be=me}}),I.mounted=null;var Z=I.mount.mounts.indexOf(k);I.mount.mounts.splice(Z,1)},lookup:function(d,E){return d.node_ops.lookup(d,E)},mknod:function(d,E,I){var k=S.lookupPath(d,{parent:!0}),T=k.node,Z=Qt.basename(d);if(!Z||Z==="."||Z==="..")throw new S.ErrnoError(28);var te=S.mayCreate(T,Z);if(te)throw new S.ErrnoError(te);if(!T.node_ops.mknod)throw new S.ErrnoError(63);return T.node_ops.mknod(T,Z,E,I)},create:function(d,E){return E=E!==void 0?E:438,E&=4095,E|=32768,S.mknod(d,E,0)},mkdir:function(d,E){return E=E!==void 0?E:511,E&=1023,E|=16384,S.mknod(d,E,0)},mkdirTree:function(d,E){for(var I=d.split("/"),k="",T=0;T<I.length;++T)if(!!I[T]){k+="/"+I[T];try{S.mkdir(k,E)}catch(Z){if(Z.errno!=20)throw 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S.ErrnoError(it);if(it=wt?S.mayDelete(me,Z,lt):S.mayCreate(me,Z),it)throw new S.ErrnoError(it);if(!Be.node_ops.rename)throw new S.ErrnoError(63);if(S.isMountpoint(Je)||wt&&S.isMountpoint(wt))throw new S.ErrnoError(10);if(me!==Be&&(it=S.nodePermissions(Be,"w"),it))throw new S.ErrnoError(it);try{S.trackingDelegate.willMovePath&&S.trackingDelegate.willMovePath(d,E)}catch(Et){D("FS.trackingDelegate['willMovePath']('"+d+"', '"+E+"') threw an exception: "+Et.message)}S.hashRemoveNode(Je);try{Be.node_ops.rename(Je,me,Z)}catch(Et){throw Et}finally{S.hashAddNode(Je)}try{S.trackingDelegate.onMovePath&&S.trackingDelegate.onMovePath(d,E)}catch(Et){D("FS.trackingDelegate['onMovePath']('"+d+"', '"+E+"') threw an exception: "+Et.message)}}},rmdir:function(d){var E=S.lookupPath(d,{parent:!0}),I=E.node,k=Qt.basename(d),T=S.lookupNode(I,k),Z=S.mayDelete(I,k,!0);if(Z)throw new S.ErrnoError(Z);if(!I.node_ops.rmdir)throw new S.ErrnoError(63);if(S.isMountpoint(T))throw new S.ErrnoError(10);try{S.trackingDelegate.willDeletePath&&S.trackingDelegate.willDeletePath(d)}catch(te){D("FS.trackingDelegate['willDeletePath']('"+d+"') threw an exception: "+te.message)}I.node_ops.rmdir(I,k),S.destroyNode(T);try{S.trackingDelegate.onDeletePath&&S.trackingDelegate.onDeletePath(d)}catch(te){D("FS.trackingDelegate['onDeletePath']('"+d+"') threw an exception: "+te.message)}},readdir:function(d){var E=S.lookupPath(d,{follow:!0}),I=E.node;if(!I.node_ops.readdir)throw new S.ErrnoError(54);return I.node_ops.readdir(I)},unlink:function(d){var E=S.lookupPath(d,{parent:!0}),I=E.node,k=Qt.basename(d),T=S.lookupNode(I,k),Z=S.mayDelete(I,k,!1);if(Z)throw new S.ErrnoError(Z);if(!I.node_ops.unlink)throw new S.ErrnoError(63);if(S.isMountpoint(T))throw new S.ErrnoError(10);try{S.trackingDelegate.willDeletePath&&S.trackingDelegate.willDeletePath(d)}catch(te){D("FS.trackingDelegate['willDeletePath']('"+d+"') threw an exception: "+te.message)}I.node_ops.unlink(I,k),S.destroyNode(T);try{S.trackingDelegate.onDeletePath&&S.trackingDelegate.onDeletePath(d)}catch(te){D("FS.trackingDelegate['onDeletePath']('"+d+"') threw an exception: "+te.message)}},readlink:function(d){var E=S.lookupPath(d),I=E.node;if(!I)throw new S.ErrnoError(44);if(!I.node_ops.readlink)throw new S.ErrnoError(28);return Rn.resolve(S.getPath(I.parent),I.node_ops.readlink(I))},stat:function(d,E){var I=S.lookupPath(d,{follow:!E}),k=I.node;if(!k)throw new S.ErrnoError(44);if(!k.node_ops.getattr)throw new S.ErrnoError(63);return k.node_ops.getattr(k)},lstat:function(d){return S.stat(d,!0)},chmod:function(d,E,I){var k;if(typeof d=="string"){var T=S.lookupPath(d,{follow:!I});k=T.node}else k=d;if(!k.node_ops.setattr)throw new S.ErrnoError(63);k.node_ops.setattr(k,{mode:E&4095|k.mode&-4096,timestamp:Date.now()})},lchmod:function(d,E){S.chmod(d,E,!0)},fchmod:function(d,E){var I=S.getStream(d);if(!I)throw new S.ErrnoError(8);S.chmod(I.node,E)},chown:function(d,E,I,k){var T;if(typeof d=="string"){var Z=S.lookupPath(d,{follow:!k});T=Z.node}else T=d;if(!T.node_ops.setattr)throw new S.ErrnoError(63);T.node_ops.setattr(T,{timestamp:Date.now()})},lchown:function(d,E,I){S.chown(d,E,I,!0)},fchown:function(d,E,I){var k=S.getStream(d);if(!k)throw new S.ErrnoError(8);S.chown(k.node,E,I)},truncate:function(d,E){if(E<0)throw new S.ErrnoError(28);var I;if(typeof d=="string"){var k=S.lookupPath(d,{follow:!0});I=k.node}else I=d;if(!I.node_ops.setattr)throw new S.ErrnoError(63);if(S.isDir(I.mode))throw new S.ErrnoError(31);if(!S.isFile(I.mode))throw new S.ErrnoError(28);var T=S.nodePermissions(I,"w");if(T)throw new S.ErrnoError(T);I.node_ops.setattr(I,{size:E,timestamp:Date.now()})},ftruncate:function(d,E){var I=S.getStream(d);if(!I)throw new S.ErrnoError(8);if((I.flags&2097155)===0)throw new S.ErrnoError(28);S.truncate(I.node,E)},utime:function(d,E,I){var k=S.lookupPath(d,{follow:!0}),T=k.node;T.node_ops.setattr(T,{timestamp:Math.max(E,I)})},open:function(d,E,I,k,T){if(d==="")throw new S.ErrnoError(44);E=typeof E=="string"?S.modeStringToFlags(E):E,I=typeof I>"u"?438:I,E&64?I=I&4095|32768:I=0;var Z;if(typeof d=="object")Z=d;else{d=Qt.normalize(d);try{var te=S.lookupPath(d,{follow:!(E&131072)});Z=te.node}catch{}}var Be=!1;if(E&64)if(Z){if(E&128)throw new S.ErrnoError(20)}else Z=S.mknod(d,I,0),Be=!0;if(!Z)throw new S.ErrnoError(44);if(S.isChrdev(Z.mode)&&(E&=-513),E&65536&&!S.isDir(Z.mode))throw new S.ErrnoError(54);if(!Be){var me=S.mayOpen(Z,E);if(me)throw new S.ErrnoError(me)}E&512&&S.truncate(Z,0),E&=-131713;var Je=S.createStream({node:Z,path:S.getPath(Z),flags:E,seekable:!0,position:0,stream_ops:Z.stream_ops,ungotten:[],error:!1},k,T);Je.stream_ops.open&&Je.stream_ops.open(Je),t.logReadFiles&&!(E&1)&&(S.readFiles||(S.readFiles={}),d in S.readFiles||(S.readFiles[d]=1,D("FS.trackingDelegate error on read file: "+d)));try{if(S.trackingDelegate.onOpenFile){var nt=0;(E&2097155)!==1&&(nt|=S.tracking.openFlags.READ),(E&2097155)!==0&&(nt|=S.tracking.openFlags.WRITE),S.trackingDelegate.onOpenFile(d,nt)}}catch(wt){D("FS.trackingDelegate['onOpenFile']('"+d+"', flags) threw an exception: "+wt.message)}return Je},close:function(d){if(S.isClosed(d))throw new S.ErrnoError(8);d.getdents&&(d.getdents=null);try{d.stream_ops.close&&d.stream_ops.close(d)}catch(E){throw E}finally{S.closeStream(d.fd)}d.fd=null},isClosed:function(d){return d.fd===null},llseek:function(d,E,I){if(S.isClosed(d))throw new S.ErrnoError(8);if(!d.seekable||!d.stream_ops.llseek)throw new S.ErrnoError(70);if(I!=0&&I!=1&&I!=2)throw new S.ErrnoError(28);return d.position=d.stream_ops.llseek(d,E,I),d.ungotten=[],d.position},read:function(d,E,I,k,T){if(k<0||T<0)throw new S.ErrnoError(28);if(S.isClosed(d))throw new S.ErrnoError(8);if((d.flags&2097155)===1)throw new S.ErrnoError(8);if(S.isDir(d.node.mode))throw new 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|55177<=A&&A<=55203?u:A==9757||A==9977||9994<=A&&A<=9997||A==127877||127938<=A&&A<=127940||A==127943||127946<=A&&A<=127948||128066<=A&&A<=128067||128070<=A&&A<=128080||A==128110||128112<=A&&A<=128120||A==128124||128129<=A&&A<=128131||128133<=A&&A<=128135||A==128170||128372<=A&&A<=128373||A==128378||A==128400||128405<=A&&A<=128406||128581<=A&&A<=128583||128587<=A&&A<=128591||A==128675||128692<=A&&A<=128694||A==128704||A==128716||129304<=A&&A<=129308||129310<=A&&A<=129311||A==129318||129328<=A&&A<=129337||129341<=A&&A<=129342||129489<=A&&A<=129501?h:127995<=A&&A<=127999?p:A==8205?C:A==9792||A==9794||9877<=A&&A<=9878||A==9992||A==10084||A==127752||A==127806||A==127859||A==127891||A==127908||A==127912||A==127979||A==127981||A==128139||128187<=A&&A<=128188||A==128295||A==128300||A==128488||A==128640||A==128658?y:128102<=A&&A<=128105?B:g}return this}typeof SB<"u"&&SB.exports&&(SB.exports=nRe)});var e7=w((Vst,$V)=>{var sRe=/^(.*?)(\x1b\[[^m]+m|\x1b\]8;;.*?(\x1b\\|\u0007))/,vB;function oRe(){if(vB)return vB;if(typeof Intl.Segmenter<"u"){let r=new Intl.Segmenter("en",{granularity:"grapheme"});return vB=e=>Array.from(r.segment(e),({segment:t})=>t)}else{let r=_V(),e=new r;return vB=t=>e.splitGraphemes(t)}}$V.exports=(r,e=0,t=r.length)=>{if(e<0||t<0)throw new RangeError("Negative indices aren't supported by this implementation");let i=t-e,n="",s=0,o=0;for(;r.length>0;){let a=r.match(sRe)||[r,r,void 0],l=oRe()(a[1]),c=Math.min(e-s,l.length);l=l.slice(c);let u=Math.min(i-o,l.length);n+=l.slice(0,u).join(""),s+=c,o+=u,typeof a[2]<"u"&&(n+=a[2]),r=r.slice(a[0].length)}return n}});var Wf=w((pot,d7)=>{"use strict";var p7=new Map([["C","cwd"],["f","file"],["z","gzip"],["P","preservePaths"],["U","unlink"],["strip-components","strip"],["stripComponents","strip"],["keep-newer","newer"],["keepNewer","newer"],["keep-newer-files","newer"],["keepNewerFiles","newer"],["k","keep"],["keep-existing","keep"],["keepExisting","keep"],["m","noMtime"],["no-mtime","noMtime"],["p","preserveOwner"],["L","follow"],["h","follow"]]);d7.exports=r=>r?Object.keys(r).map(e=>[p7.has(e)?p7.get(e):e,r[e]]).reduce((e,t)=>(e[t[0]]=t[1],e),Object.create(null)):{}});var Vf=w((dot,b7)=>{"use strict";var C7=typeof process=="object"&&process?process:{stdout:null,stderr:null},ERe=J("events"),m7=J("stream"),E7=J("string_decoder").StringDecoder,Ja=Symbol("EOF"),Wa=Symbol("maybeEmitEnd"),el=Symbol("emittedEnd"),FB=Symbol("emittingEnd"),RC=Symbol("emittedError"),NB=Symbol("closed"),I7=Symbol("read"),LB=Symbol("flush"),y7=Symbol("flushChunk"),Sn=Symbol("encoding"),za=Symbol("decoder"),TB=Symbol("flowing"),FC=Symbol("paused"),zf=Symbol("resume"),Ci=Symbol("bufferLength"),zR=Symbol("bufferPush"),VR=Symbol("bufferShift"),Hi=Symbol("objectMode"),Gi=Symbol("destroyed"),XR=Symbol("emitData"),w7=Symbol("emitEnd"),ZR=Symbol("emitEnd2"),Va=Symbol("async"),NC=r=>Promise.resolve().then(r),B7=global._MP_NO_ITERATOR_SYMBOLS_!=="1",IRe=B7&&Symbol.asyncIterator||Symbol("asyncIterator not implemented"),yRe=B7&&Symbol.iterator||Symbol("iterator not implemented"),wRe=r=>r==="end"||r==="finish"||r==="prefinish",BRe=r=>r instanceof ArrayBuffer||typeof r=="object"&&r.constructor&&r.constructor.name==="ArrayBuffer"&&r.byteLength>=0,QRe=r=>!Buffer.isBuffer(r)&&ArrayBuffer.isView(r),OB=class{constructor(e,t,i){this.src=e,this.dest=t,this.opts=i,this.ondrain=()=>e[zf](),t.on("drain",this.ondrain)}unpipe(){this.dest.removeListener("drain",this.ondrain)}proxyErrors(){}end(){this.unpipe(),this.opts.end&&this.dest.end()}},_R=class extends OB{unpipe(){this.src.removeListener("error",this.proxyErrors),super.unpipe()}constructor(e,t,i){super(e,t,i),this.proxyErrors=n=>t.emit("error",n),e.on("error",this.proxyErrors)}};b7.exports=class Q7 extends m7{constructor(e){super(),this[TB]=!1,this[FC]=!1,this.pipes=[],this.buffer=[],this[Hi]=e&&e.objectMode||!1,this[Hi]?this[Sn]=null:this[Sn]=e&&e.encoding||null,this[Sn]==="buffer"&&(this[Sn]=null),this[Va]=e&&!!e.async||!1,this[za]=this[Sn]?new E7(this[Sn]):null,this[Ja]=!1,this[el]=!1,this[FB]=!1,this[NB]=!1,this[RC]=null,this.writable=!0,this.readable=!0,this[Ci]=0,this[Gi]=!1}get bufferLength(){return this[Ci]}get encoding(){return this[Sn]}set encoding(e){if(this[Hi])throw new Error("cannot set encoding in objectMode");if(this[Sn]&&e!==this[Sn]&&(this[za]&&this[za].lastNeed||this[Ci]))throw new Error("cannot change encoding");this[Sn]!==e&&(this[za]=e?new E7(e):null,this.buffer.length&&(this.buffer=this.buffer.map(t=>this[za].write(t)))),this[Sn]=e}setEncoding(e){this.encoding=e}get objectMode(){return this[Hi]}set objectMode(e){this[Hi]=this[Hi]||!!e}get async(){return this[Va]}set async(e){this[Va]=this[Va]||!!e}write(e,t,i){if(this[Ja])throw new Error("write after end");if(this[Gi])return this.emit("error",Object.assign(new Error("Cannot call write after a stream was destroyed"),{code:"ERR_STREAM_DESTROYED"})),!0;typeof t=="function"&&(i=t,t="utf8"),t||(t="utf8");let n=this[Va]?NC:s=>s();return!this[Hi]&&!Buffer.isBuffer(e)&&(QRe(e)?e=Buffer.from(e.buffer,e.byteOffset,e.byteLength):BRe(e)?e=Buffer.from(e):typeof e!="string"&&(this.objectMode=!0)),this[Hi]?(this.flowing&&this[Ci]!==0&&this[LB](!0),this.flowing?this.emit("data",e):this[zR](e),this[Ci]!==0&&this.emit("readable"),i&&n(i),this.flowing):e.length?(typeof e=="string"&&!(t===this[Sn]&&!this[za].lastNeed)&&(e=Buffer.from(e,t)),Buffer.isBuffer(e)&&this[Sn]&&(e=this[za].write(e)),this.flowing&&this[Ci]!==0&&this[LB](!0),this.flowing?this.emit("data",e):this[zR](e),this[Ci]!==0&&this.emit("readable"),i&&n(i),this.flowing):(this[Ci]!==0&&this.emit("readable"),i&&n(i),this.flowing)}read(e){if(this[Gi])return null;if(this[Ci]===0||e===0||e>this[Ci])return this[Wa](),null;this[Hi]&&(e=null),this.buffer.length>1&&!this[Hi]&&(this.encoding?this.buffer=[this.buffer.join("")]:this.buffer=[Buffer.concat(this.buffer,this[Ci])]);let t=this[I7](e||null,this.buffer[0]);return this[Wa](),t}[I7](e,t){return e===t.length||e===null?this[VR]():(this.buffer[0]=t.slice(e),t=t.slice(0,e),this[Ci]-=e),this.emit("data",t),!this.buffer.length&&!this[Ja]&&this.emit("drain"),t}end(e,t,i){return typeof e=="function"&&(i=e,e=null),typeof t=="function"&&(i=t,t="utf8"),e&&this.write(e,t),i&&this.once("end",i),this[Ja]=!0,this.writable=!1,(this.flowing||!this[FC])&&this[Wa](),this}[zf](){this[Gi]||(this[FC]=!1,this[TB]=!0,this.emit("resume"),this.buffer.length?this[LB]():this[Ja]?this[Wa]():this.emit("drain"))}resume(){return this[zf]()}pause(){this[TB]=!1,this[FC]=!0}get destroyed(){return this[Gi]}get flowing(){return this[TB]}get paused(){return this[FC]}[zR](e){this[Hi]?this[Ci]+=1:this[Ci]+=e.length,this.buffer.push(e)}[VR](){return this.buffer.length&&(this[Hi]?this[Ci]-=1:this[Ci]-=this.buffer[0].length),this.buffer.shift()}[LB](e){do;while(this[y7](this[VR]()));!e&&!this.buffer.length&&!this[Ja]&&this.emit("drain")}[y7](e){return e?(this.emit("data",e),this.flowing):!1}pipe(e,t){if(this[Gi])return;let i=this[el];return t=t||{},e===C7.stdout||e===C7.stderr?t.end=!1:t.end=t.end!==!1,t.proxyErrors=!!t.proxyErrors,i?t.end&&e.end():(this.pipes.push(t.proxyErrors?new _R(this,e,t):new OB(this,e,t)),this[Va]?NC(()=>this[zf]()):this[zf]()),e}unpipe(e){let t=this.pipes.find(i=>i.dest===e);t&&(this.pipes.splice(this.pipes.indexOf(t),1),t.unpipe())}addListener(e,t){return this.on(e,t)}on(e,t){let i=super.on(e,t);return e==="data"&&!this.pipes.length&&!this.flowing?this[zf]():e==="readable"&&this[Ci]!==0?super.emit("readable"):wRe(e)&&this[el]?(super.emit(e),this.removeAllListeners(e)):e==="error"&&this[RC]&&(this[Va]?NC(()=>t.call(this,this[RC])):t.call(this,this[RC])),i}get emittedEnd(){return this[el]}[Wa](){!this[FB]&&!this[el]&&!this[Gi]&&this.buffer.length===0&&this[Ja]&&(this[FB]=!0,this.emit("end"),this.emit("prefinish"),this.emit("finish"),this[NB]&&this.emit("close"),this[FB]=!1)}emit(e,t,...i){if(e!=="error"&&e!=="close"&&e!==Gi&&this[Gi])return;if(e==="data")return t?this[Va]?NC(()=>this[XR](t)):this[XR](t):!1;if(e==="end")return this[w7]();if(e==="close"){if(this[NB]=!0,!this[el]&&!this[Gi])return;let s=super.emit("close");return this.removeAllListeners("close"),s}else if(e==="error"){this[RC]=t;let s=super.emit("error",t);return this[Wa](),s}else if(e==="resume"){let s=super.emit("resume");return this[Wa](),s}else if(e==="finish"||e==="prefinish"){let s=super.emit(e);return this.removeAllListeners(e),s}let n=super.emit(e,t,...i);return this[Wa](),n}[XR](e){for(let i of this.pipes)i.dest.write(e)===!1&&this.pause();let t=super.emit("data",e);return 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k0.Sync(r),YNe=r=>new k0(r)});var _X=w(ci=>{"use strict";ci.c=ci.create=F9();ci.r=ci.replace=oN();ci.t=ci.list=E0();ci.u=ci.update=G9();ci.x=ci.extract=ZX();ci.Pack=n0();ci.Unpack=QN();ci.Parse=m0();ci.ReadEntry=HB();ci.WriteEntry=LF();ci.Header=eh();ci.Pax=YB();ci.types=CF()});var rZ=w((Aat,tZ)=>{var SN;tZ.exports.getContent=()=>(typeof 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t+=r<0?tu.left(-r):r>0?tu.right(r):"",t+=e<0?tu.up(-e):e>0?tu.down(e):"",t},restore(r={}){let{after:e,cursor:t,initial:i,input:n,prompt:s,size:o,value:a}=r;if(i=rT.isPrimitive(i)?String(i):"",n=rT.isPrimitive(n)?String(n):"",a=rT.isPrimitive(a)?String(a):"",o){let l=co.cursor.up(o)+co.cursor.to(s.length),c=n.length-t;return c>0&&(l+=co.cursor.left(c)),l}if(a||e){let l=!n&&!!i?-i.length:-n.length+t;return e&&(l-=e.length),n===""&&i&&!s.includes(i)&&(l+=i.length),co.cursor.move(l)}}},nT=co.erase={screen:hl.screen,up:hl.up,down:hl.down,line:hl.line,lineEnd:hl.lineEnd,lineStart:hl.lineStart,lines(r){let e="";for(let t=0;t<r;t++)e+=co.erase.line+(t<r-1?co.cursor.up(1):"");return r&&(e+=co.code.beginning),e}};co.clear=(r="",e=process.stdout.columns)=>{if(!e)return nT.line+tu.to(0);let t=s=>[...fje.unstyle(s)].length,i=r.split(/\r?\n/),n=0;for(let s of i)n+=1+Math.floor(Math.max(t(s)-1,0)/e);return(nT.line+tu.prevLine()).repeat(n-1)+nT.line+tu.to(0)}});var Uh=w((wgt,mne)=>{"use strict";var hje=J("events"),Cne=lo(),sT=tne(),pje=ine(),dje=sne(),Cje=une(),Pn=ji(),ru=dne(),Nm=class extends hje{constructor(e={}){super(),this.name=e.name,this.type=e.type,this.options=e,Cje(this),pje(this),this.state=new dje(this),this.initial=[e.initial,e.default].find(t=>t!=null),this.stdout=e.stdout||process.stdout,this.stdin=e.stdin||process.stdin,this.scale=e.scale||1,this.term=this.options.term||process.env.TERM_PROGRAM,this.margin=Eje(this.options.margin),this.setMaxListeners(0),mje(this)}async keypress(e,t={}){this.keypressed=!0;let i=sT.action(e,sT(e,t),this.options.actions);this.state.keypress=i,this.emit("keypress",e,i),this.emit("state",this.state.clone());let n=this.options[i.action]||this[i.action]||this.dispatch;if(typeof n=="function")return await n.call(this,e,i);this.alert()}alert(){delete this.state.alert,this.options.show===!1?this.emit("alert"):this.stdout.write(ru.code.beep)}cursorHide(){this.stdout.write(ru.cursor.hide()),Pn.onExit(()=>this.cursorShow())}cursorShow(){this.stdout.write(ru.cursor.show())}write(e){!e||(this.stdout&&this.state.show!==!1&&this.stdout.write(e),this.state.buffer+=e)}clear(e=0){let t=this.state.buffer;this.state.buffer="",!(!t&&!e||this.options.show===!1)&&this.stdout.write(ru.cursor.down(e)+ru.clear(t,this.width))}restore(){if(this.state.closed||this.options.show===!1)return;let{prompt:e,after:t,rest:i}=this.sections(),{cursor:n,initial:s="",input:o="",value:a=""}=this,l=this.state.size=i.length,c={after:t,cursor:n,initial:s,input:o,prompt:e,size:l,value:a},u=ru.cursor.restore(c);u&&this.stdout.write(u)}sections(){let{buffer:e,input:t,prompt:i}=this.state;i=Cne.unstyle(i);let n=Cne.unstyle(e),s=n.indexOf(i),o=n.slice(0,s),l=n.slice(s).split(`
+`),c=l[0],u=l[l.length-1],f=(i+(t?" "+t:"")).length,h=f<c.length?c.slice(f+1):"";return{header:o,prompt:c,after:h,rest:l.slice(1),last:u}}async submit(){this.state.submitted=!0,this.state.validating=!0,this.options.onSubmit&&await this.options.onSubmit.call(this,this.name,this.value,this);let e=this.state.error||await this.validate(this.value,this.state);if(e!==!0){let t=`
+`+this.symbols.pointer+" ";typeof e=="string"?t+=e.trim():t+="Invalid input",this.state.error=`
+`+this.styles.danger(t),this.state.submitted=!1,await this.render(),await this.alert(),this.state.validating=!1,this.state.error=void 0;return}this.state.validating=!1,await this.render(),await this.close(),this.value=await this.result(this.value),this.emit("submit",this.value)}async cancel(e){this.state.cancelled=this.state.submitted=!0,await this.render(),await this.close(),typeof this.options.onCancel=="function"&&await this.options.onCancel.call(this,this.name,this.value,this),this.emit("cancel",await this.error(e))}async close(){this.state.closed=!0;try{let e=this.sections(),t=Math.ceil(e.prompt.length/this.width);e.rest&&this.write(ru.cursor.down(e.rest.length)),this.write(`
+`.repeat(t))}catch{}this.emit("close")}start(){!this.stop&&this.options.show!==!1&&(this.stop=sT.listen(this,this.keypress.bind(this)),this.once("close",this.stop))}async skip(){return this.skipped=this.options.skip===!0,typeof this.options.skip=="function"&&(this.skipped=await this.options.skip.call(this,this.name,this.value)),this.skipped}async initialize(){let{format:e,options:t,result:i}=this;if(this.format=()=>e.call(this,this.value),this.result=()=>i.call(this,this.value),typeof t.initial=="function"&&(this.initial=await t.initial.call(this,this)),typeof t.onRun=="function"&&await t.onRun.call(this,this),typeof t.onSubmit=="function"){let n=t.onSubmit.bind(this),s=this.submit.bind(this);delete this.options.onSubmit,this.submit=async()=>(await n(this.name,this.value,this),s())}await this.start(),await this.render()}render(){throw new Error("expected prompt to have a custom render method")}run(){return new Promise(async(e,t)=>{if(this.once("submit",e),this.once("cancel",t),await this.skip())return this.render=()=>{},this.submit();await this.initialize(),this.emit("run")})}async element(e,t,i){let{options:n,state:s,symbols:o,timers:a}=this,l=a&&a[e];s.timer=l;let c=n[e]||s[e]||o[e],u=t&&t[e]!=null?t[e]:await c;if(u==="")return u;let g=await this.resolve(u,s,t,i);return!g&&t&&t[e]?this.resolve(c,s,t,i):g}async prefix(){let e=await this.element("prefix")||this.symbols,t=this.timers&&this.timers.prefix,i=this.state;return i.timer=t,Pn.isObject(e)&&(e=e[i.status]||e.pending),Pn.hasColor(e)?e:(this.styles[i.status]||this.styles.pending)(e)}async message(){let e=await this.element("message");return Pn.hasColor(e)?e:this.styles.strong(e)}async separator(){let e=await this.element("separator")||this.symbols,t=this.timers&&this.timers.separator,i=this.state;i.timer=t;let n=e[i.status]||e.pending||i.separator,s=await this.resolve(n,i);return Pn.isObject(s)&&(s=s[i.status]||s.pending),Pn.hasColor(s)?s:this.styles.muted(s)}async pointer(e,t){let i=await this.element("pointer",e,t);if(typeof i=="string"&&Pn.hasColor(i))return i;if(i){let n=this.styles,s=this.index===t,o=s?n.primary:c=>c,a=await this.resolve(i[s?"on":"off"]||i,this.state),l=Pn.hasColor(a)?a:o(a);return s?l:" ".repeat(a.length)}}async indicator(e,t){let i=await this.element("indicator",e,t);if(typeof i=="string"&&Pn.hasColor(i))return i;if(i){let n=this.styles,s=e.enabled===!0,o=s?n.success:n.dark,a=i[s?"on":"off"]||i;return Pn.hasColor(a)?a:o(a)}return""}body(){return null}footer(){if(this.state.status==="pending")return this.element("footer")}header(){if(this.state.status==="pending")return this.element("header")}async hint(){if(this.state.status==="pending"&&!this.isValue(this.state.input)){let e=await this.element("hint");return Pn.hasColor(e)?e:this.styles.muted(e)}}error(e){return this.state.submitted?"":e||this.state.error}format(e){return e}result(e){return e}validate(e){return this.options.required===!0?this.isValue(e):!0}isValue(e){return e!=null&&e!==""}resolve(e,...t){return Pn.resolve(this,e,...t)}get base(){return Nm.prototype}get style(){return this.styles[this.state.status]}get height(){return this.options.rows||Pn.height(this.stdout,25)}get width(){return this.options.columns||Pn.width(this.stdout,80)}get size(){return{width:this.width,height:this.height}}set cursor(e){this.state.cursor=e}get cursor(){return this.state.cursor}set input(e){this.state.input=e}get input(){return this.state.input}set value(e){this.state.value=e}get value(){let{input:e,value:t}=this.state,i=[t,e].find(this.isValue.bind(this));return this.isValue(i)?i:this.initial}static get prompt(){return e=>new this(e).run()}};function mje(r){let e=n=>r[n]===void 0||typeof r[n]=="function",t=["actions","choices","initial","margin","roles","styles","symbols","theme","timers","value"],i=["body","footer","error","header","hint","indicator","message","prefix","separator","skip"];for(let n of Object.keys(r.options)){if(t.includes(n)||/^on[A-Z]/.test(n))continue;let s=r.options[n];typeof s=="function"&&e(n)?i.includes(n)||(r[n]=s.bind(r)):typeof r[n]!="function"&&(r[n]=s)}}function Eje(r){typeof r=="number"&&(r=[r,r,r,r]);let e=[].concat(r||[]),t=n=>n%2===0?`
+`:" ",i=[];for(let n=0;n<4;n++){let s=t(n);e[n]?i.push(s.repeat(e[n])):i.push("")}return i}mne.exports=Nm});var yne=w((Bgt,Ine)=>{"use strict";var Ije=ji(),Ene={default(r,e){return e},checkbox(r,e){throw new Error("checkbox role is not implemented yet")},editable(r,e){throw new Error("editable role is not implemented yet")},expandable(r,e){throw new Error("expandable role is not implemented yet")},heading(r,e){return e.disabled="",e.indicator=[e.indicator," "].find(t=>t!=null),e.message=e.message||"",e},input(r,e){throw new Error("input role is not implemented yet")},option(r,e){return Ene.default(r,e)},radio(r,e){throw new Error("radio role is not implemented yet")},separator(r,e){return e.disabled="",e.indicator=[e.indicator," "].find(t=>t!=null),e.message=e.message||r.symbols.line.repeat(5),e},spacer(r,e){return e}};Ine.exports=(r,e={})=>{let t=Ije.merge({},Ene,e.roles);return t[r]||t.default}});var Lm=w((Qgt,Qne)=>{"use strict";var yje=lo(),wje=Uh(),Bje=yne(),yQ=ji(),{reorder:oT,scrollUp:Qje,scrollDown:bje,isObject:wne,swap:Sje}=yQ,aT=class extends wje{constructor(e){super(e),this.cursorHide(),this.maxSelected=e.maxSelected||1/0,this.multiple=e.multiple||!1,this.initial=e.initial||0,this.delay=e.delay||0,this.longest=0,this.num=""}async initialize(){typeof this.options.initial=="function"&&(this.initial=await this.options.initial.call(this)),await this.reset(!0),await super.initialize()}async reset(){let{choices:e,initial:t,autofocus:i,suggest:n}=this.options;if(this.state._choices=[],this.state.choices=[],this.choices=await Promise.all(await this.toChoices(e)),this.choices.forEach(s=>s.enabled=!1),typeof n!="function"&&this.selectable.length===0)throw new Error("At least one choice must be selectable");wne(t)&&(t=Object.keys(t)),Array.isArray(t)?(i!=null&&(this.index=this.findIndex(i)),t.forEach(s=>this.enable(this.find(s))),await this.render()):(i!=null&&(t=i),typeof t=="string"&&(t=this.findIndex(t)),typeof t=="number"&&t>-1&&(this.index=Math.max(0,Math.min(t,this.choices.length)),this.enable(this.find(this.index)))),this.isDisabled(this.focused)&&await this.down()}async toChoices(e,t){this.state.loadingChoices=!0;let i=[],n=0,s=async(o,a)=>{typeof o=="function"&&(o=await o.call(this)),o instanceof Promise&&(o=await o);for(let l=0;l<o.length;l++){let c=o[l]=await this.toChoice(o[l],n++,a);i.push(c),c.choices&&await s(c.choices,c)}return i};return s(e,t).then(o=>(this.state.loadingChoices=!1,o))}async toChoice(e,t,i){if(typeof e=="function"&&(e=await e.call(this,this)),e instanceof Promise&&(e=await e),typeof e=="string"&&(e={name:e}),e.normalized)return e;e.normalized=!0;let n=e.value;if(e=Bje(e.role,this.options)(this,e),typeof e.disabled=="string"&&!e.hint&&(e.hint=e.disabled,e.disabled=!0),e.disabled===!0&&e.hint==null&&(e.hint="(disabled)"),e.index!=null)return e;e.name=e.name||e.key||e.title||e.value||e.message,e.message=e.message||e.name||"",e.value=[e.value,e.name].find(this.isValue.bind(this)),e.input="",e.index=t,e.cursor=0,yQ.define(e,"parent",i),e.level=i?i.level+1:1,e.indent==null&&(e.indent=i?i.indent+"  ":e.indent||""),e.path=i?i.path+"."+e.name:e.name,e.enabled=!!(this.multiple&&!this.isDisabled(e)&&(e.enabled||this.isSelected(e))),this.isDisabled(e)||(this.longest=Math.max(this.longest,yje.unstyle(e.message).length));let o={...e};return e.reset=(a=o.input,l=o.value)=>{for(let c of Object.keys(o))e[c]=o[c];e.input=a,e.value=l},n==null&&typeof e.initial=="function"&&(e.input=await e.initial.call(this,this.state,e,t)),e}async onChoice(e,t){this.emit("choice",e,t,this),typeof e.onChoice=="function"&&await e.onChoice.call(this,this.state,e,t)}async addChoice(e,t,i){let n=await this.toChoice(e,t,i);return this.choices.push(n),this.index=this.choices.length-1,this.limit=this.choices.length,n}async newItem(e,t,i){let n={name:"New choice name?",editable:!0,newChoice:!0,...e},s=await this.addChoice(n,t,i);return s.updateChoice=()=>{delete s.newChoice,s.name=s.message=s.input,s.input="",s.cursor=0},this.render()}indent(e){return e.indent==null?e.level>1?"  ".repeat(e.level-1):"":e.indent}dispatch(e,t){if(this.multiple&&this[t.name])return this[t.name]();this.alert()}focus(e,t){return typeof t!="boolean"&&(t=e.enabled),t&&!e.enabled&&this.selected.length>=this.maxSelected?this.alert():(this.index=e.index,e.enabled=t&&!this.isDisabled(e),e)}space(){return this.multiple?(this.toggle(this.focused),this.render()):this.alert()}a(){if(this.maxSelected<this.choices.length)return this.alert();let e=this.selectable.every(t=>t.enabled);return this.choices.forEach(t=>t.enabled=!e),this.render()}i(){return this.choices.length-this.selected.length>this.maxSelected?this.alert():(this.choices.forEach(e=>e.enabled=!e.enabled),this.render())}g(e=this.focused){return this.choices.some(t=>!!t.parent)?(this.toggle(e.parent&&!e.choices?e.parent:e),this.render()):this.a()}toggle(e,t){if(!e.enabled&&this.selected.length>=this.maxSelected)return this.alert();typeof t!="boolean"&&(t=!e.enabled),e.enabled=t,e.choices&&e.choices.forEach(n=>this.toggle(n,t));let i=e.parent;for(;i;){let n=i.choices.filter(s=>this.isDisabled(s));i.enabled=n.every(s=>s.enabled===!0),i=i.parent}return Bne(this,this.choices),this.emit("toggle",e,this),e}enable(e){return this.selected.length>=this.maxSelected?this.alert():(e.enabled=!this.isDisabled(e),e.choices&&e.choices.forEach(this.enable.bind(this)),e)}disable(e){return e.enabled=!1,e.choices&&e.choices.forEach(this.disable.bind(this)),e}number(e){this.num+=e;let t=i=>{let n=Number(i);if(n>this.choices.length-1)return this.alert();let s=this.focused,o=this.choices.find(a=>n===a.index);if(!o.enabled&&this.selected.length>=this.maxSelected)return this.alert();if(this.visible.indexOf(o)===-1){let a=oT(this.choices),l=a.indexOf(o);if(s.index>l){let c=a.slice(l,l+this.limit),u=a.filter(g=>!c.includes(g));this.choices=c.concat(u)}else{let c=l-this.limit+1;this.choices=a.slice(c).concat(a.slice(0,c))}}return this.index=this.choices.indexOf(o),this.toggle(this.focused),this.render()};return clearTimeout(this.numberTimeout),new Promise(i=>{let n=this.choices.length,s=this.num,o=(a=!1,l)=>{clearTimeout(this.numberTimeout),a&&(l=t(s)),this.num="",i(l)};if(s==="0"||s.length===1&&Number(s+"0")>n)return o(!0);if(Number(s)>n)return o(!1,this.alert());this.numberTimeout=setTimeout(()=>o(!0),this.delay)})}home(){return this.choices=oT(this.choices),this.index=0,this.render()}end(){let e=this.choices.length-this.limit,t=oT(this.choices);return this.choices=t.slice(e).concat(t.slice(0,e)),this.index=this.limit-1,this.render()}first(){return this.index=0,this.render()}last(){return this.index=this.visible.length-1,this.render()}prev(){return this.visible.length<=1?this.alert():this.up()}next(){return this.visible.length<=1?this.alert():this.down()}right(){return this.cursor>=this.input.length?this.alert():(this.cursor++,this.render())}left(){return this.cursor<=0?this.alert():(this.cursor--,this.render())}up(){let e=this.choices.length,t=this.visible.length,i=this.index;return this.options.scroll===!1&&i===0?this.alert():e>t&&i===0?this.scrollUp():(this.index=(i-1%e+e)%e,this.isDisabled()?this.up():this.render())}down(){let e=this.choices.length,t=this.visible.length,i=this.index;return this.options.scroll===!1&&i===t-1?this.alert():e>t&&i===t-1?this.scrollDown():(this.index=(i+1)%e,this.isDisabled()?this.down():this.render())}scrollUp(e=0){return this.choices=Qje(this.choices),this.index=e,this.isDisabled()?this.up():this.render()}scrollDown(e=this.visible.length-1){return this.choices=bje(this.choices),this.index=e,this.isDisabled()?this.down():this.render()}async shiftUp(){if(this.options.sort===!0){this.sorting=!0,this.swap(this.index-1),await this.up(),this.sorting=!1;return}return this.scrollUp(this.index)}async shiftDown(){if(this.options.sort===!0){this.sorting=!0,this.swap(this.index+1),await this.down(),this.sorting=!1;return}return this.scrollDown(this.index)}pageUp(){return this.visible.length<=1?this.alert():(this.limit=Math.max(this.limit-1,0),this.index=Math.min(this.limit-1,this.index),this._limit=this.limit,this.isDisabled()?this.up():this.render())}pageDown(){return this.visible.length>=this.choices.length?this.alert():(this.index=Math.max(0,this.index),this.limit=Math.min(this.limit+1,this.choices.length),this._limit=this.limit,this.isDisabled()?this.down():this.render())}swap(e){Sje(this.choices,this.index,e)}isDisabled(e=this.focused){return e&&["disabled","collapsed","hidden","completing","readonly"].some(i=>e[i]===!0)?!0:e&&e.role==="heading"}isEnabled(e=this.focused){if(Array.isArray(e))return e.every(t=>this.isEnabled(t));if(e.choices){let t=e.choices.filter(i=>!this.isDisabled(i));return e.enabled&&t.every(i=>this.isEnabled(i))}return e.enabled&&!this.isDisabled(e)}isChoice(e,t){return e.name===t||e.index===Number(t)}isSelected(e){return Array.isArray(this.initial)?this.initial.some(t=>this.isChoice(e,t)):this.isChoice(e,this.initial)}map(e=[],t="value"){return[].concat(e||[]).reduce((i,n)=>(i[n]=this.find(n,t),i),{})}filter(e,t){let n=typeof e=="function"?e:(a,l)=>[a.name,l].includes(e),o=(this.options.multiple?this.state._choices:this.choices).filter(n);return t?o.map(a=>a[t]):o}find(e,t){if(wne(e))return t?e[t]:e;let n=typeof e=="function"?e:(o,a)=>[o.name,a].includes(e),s=this.choices.find(n);if(s)return t?s[t]:s}findIndex(e){return this.choices.indexOf(this.find(e))}async submit(){let e=this.focused;if(!e)return this.alert();if(e.newChoice)return e.input?(e.updateChoice(),this.render()):this.alert();if(this.choices.some(o=>o.newChoice))return this.alert();let{reorder:t,sort:i}=this.options,n=this.multiple===!0,s=this.selected;return s===void 0?this.alert():(Array.isArray(s)&&t!==!1&&i!==!0&&(s=yQ.reorder(s)),this.value=n?s.map(o=>o.name):s.name,super.submit())}set choices(e=[]){this.state._choices=this.state._choices||[],this.state.choices=e;for(let t of e)this.state._choices.some(i=>i.name===t.name)||this.state._choices.push(t);if(!this._initial&&this.options.initial){this._initial=!0;let t=this.initial;if(typeof t=="string"||typeof t=="number"){let i=this.find(t);i&&(this.initial=i.index,this.focus(i,!0))}}}get choices(){return Bne(this,this.state.choices||[])}set visible(e){this.state.visible=e}get visible(){return(this.state.visible||this.choices).slice(0,this.limit)}set limit(e){this.state.limit=e}get limit(){let{state:e,options:t,choices:i}=this,n=e.limit||this._limit||t.limit||i.length;return Math.min(n,this.height)}set value(e){super.value=e}get value(){return typeof super.value!="string"&&super.value===this.initial?this.input:super.value}set index(e){this.state.index=e}get index(){return Math.max(0,this.state?this.state.index:0)}get enabled(){return this.filter(this.isEnabled.bind(this))}get focused(){let e=this.choices[this.index];return e&&this.state.submitted&&this.multiple!==!0&&(e.enabled=!0),e}get selectable(){return this.choices.filter(e=>!this.isDisabled(e))}get selected(){return this.multiple?this.enabled:this.focused}};function Bne(r,e){if(e instanceof Promise)return e;if(typeof e=="function"){if(yQ.isAsyncFn(e))return e;e=e.call(r,r)}for(let t of e){if(Array.isArray(t.choices)){let i=t.choices.filter(n=>!r.isDisabled(n));t.enabled=i.every(n=>n.enabled===!0)}r.isDisabled(t)===!0&&delete t.enabled}return e}Qne.exports=aT});var pl=w((bgt,bne)=>{"use strict";var vje=Lm(),AT=ji(),lT=class extends vje{constructor(e){super(e),this.emptyError=this.options.emptyError||"No items were selected"}async dispatch(e,t){if(this.multiple)return this[t.name]?await this[t.name](e,t):await super.dispatch(e,t);this.alert()}separator(){if(this.options.separator)return super.separator();let e=this.styles.muted(this.symbols.ellipsis);return this.state.submitted?super.separator():e}pointer(e,t){return!this.multiple||this.options.pointer?super.pointer(e,t):""}indicator(e,t){return this.multiple?super.indicator(e,t):""}choiceMessage(e,t){let i=this.resolve(e.message,this.state,e,t);return e.role==="heading"&&!AT.hasColor(i)&&(i=this.styles.strong(i)),this.resolve(i,this.state,e,t)}choiceSeparator(){return":"}async renderChoice(e,t){await this.onChoice(e,t);let i=this.index===t,n=await this.pointer(e,t),s=await this.indicator(e,t)+(e.pad||""),o=await this.resolve(e.hint,this.state,e,t);o&&!AT.hasColor(o)&&(o=this.styles.muted(o));let a=this.indent(e),l=await this.choiceMessage(e,t),c=()=>[this.margin[3],a+n+s,l,this.margin[1],o].filter(Boolean).join(" ");return e.role==="heading"?c():e.disabled?(AT.hasColor(l)||(l=this.styles.disabled(l)),c()):(i&&(l=this.styles.em(l)),c())}async renderChoices(){if(this.state.loading==="choices")return this.styles.warning("Loading choices");if(this.state.submitted)return"";let e=this.visible.map(async(s,o)=>await this.renderChoice(s,o)),t=await Promise.all(e);t.length||t.push(this.styles.danger("No matching choices"));let i=this.margin[0]+t.join(`
+`),n;return this.options.choicesHeader&&(n=await this.resolve(this.options.choicesHeader,this.state)),[n,i].filter(Boolean).join(`
+`)}format(){return!this.state.submitted||this.state.cancelled?"":Array.isArray(this.selected)?this.selected.map(e=>this.styles.primary(e.name)).join(", "):this.styles.primary(this.selected.name)}async render(){let{submitted:e,size:t}=this.state,i="",n=await this.header(),s=await this.prefix(),o=await this.separator(),a=await this.message();this.options.promptLine!==!1&&(i=[s,a,o,""].join(" "),this.state.prompt=i);let l=await this.format(),c=await this.error()||await this.hint(),u=await this.renderChoices(),g=await this.footer();l&&(i+=l),c&&!i.includes(c)&&(i+=" "+c),e&&!l&&!u.trim()&&this.multiple&&this.emptyError!=null&&(i+=this.styles.danger(this.emptyError)),this.clear(t),this.write([n,i,u,g].filter(Boolean).join(`
+`)),this.write(this.margin[2]),this.restore()}};bne.exports=lT});var vne=w((Sgt,Sne)=>{"use strict";var xje=pl(),Pje=(r,e)=>{let t=r.toLowerCase();return i=>{let s=i.toLowerCase().indexOf(t),o=e(i.slice(s,s+t.length));return s>=0?i.slice(0,s)+o+i.slice(s+t.length):i}},cT=class extends xje{constructor(e){super(e),this.cursorShow()}moveCursor(e){this.state.cursor+=e}dispatch(e){return this.append(e)}space(e){return this.options.multiple?super.space(e):this.append(e)}append(e){let{cursor:t,input:i}=this.state;return this.input=i.slice(0,t)+e+i.slice(t),this.moveCursor(1),this.complete()}delete(){let{cursor:e,input:t}=this.state;return t?(this.input=t.slice(0,e-1)+t.slice(e),this.moveCursor(-1),this.complete()):this.alert()}deleteForward(){let{cursor:e,input:t}=this.state;return t[e]===void 0?this.alert():(this.input=`${t}`.slice(0,e)+`${t}`.slice(e+1),this.complete())}number(e){return this.append(e)}async complete(){this.completing=!0,this.choices=await this.suggest(this.input,this.state._choices),this.state.limit=void 0,this.index=Math.min(Math.max(this.visible.length-1,0),this.index),await this.render(),this.completing=!1}suggest(e=this.input,t=this.state._choices){if(typeof this.options.suggest=="function")return this.options.suggest.call(this,e,t);let i=e.toLowerCase();return t.filter(n=>n.message.toLowerCase().includes(i))}pointer(){return""}format(){if(!this.focused)return this.input;if(this.options.multiple&&this.state.submitted)return this.selected.map(e=>this.styles.primary(e.message)).join(", ");if(this.state.submitted){let e=this.value=this.input=this.focused.value;return this.styles.primary(e)}return this.input}async render(){if(this.state.status!=="pending")return super.render();let e=this.options.highlight?this.options.highlight.bind(this):this.styles.placeholder,t=Pje(this.input,e),i=this.choices;this.choices=i.map(n=>({...n,message:t(n.message)})),await super.render(),this.choices=i}submit(){return this.options.multiple&&(this.value=this.selected.map(e=>e.name)),super.submit()}};Sne.exports=cT});var gT=w((vgt,xne)=>{"use strict";var uT=ji();xne.exports=(r,e={})=>{r.cursorHide();let{input:t="",initial:i="",pos:n,showCursor:s=!0,color:o}=e,a=o||r.styles.placeholder,l=uT.inverse(r.styles.primary),c=C=>l(r.styles.black(C)),u=t,g=" ",f=c(g);if(r.blink&&r.blink.off===!0&&(c=C=>C,f=""),s&&n===0&&i===""&&t==="")return c(g);if(s&&n===0&&(t===i||t===""))return c(i[0])+a(i.slice(1));i=uT.isPrimitive(i)?`${i}`:"",t=uT.isPrimitive(t)?`${t}`:"";let h=i&&i.startsWith(t)&&i!==t,p=h?c(i[t.length]):f;if(n!==t.length&&s===!0&&(u=t.slice(0,n)+c(t[n])+t.slice(n+1),p=""),s===!1&&(p=""),h){let C=r.styles.unstyle(u+p);return u+p+a(i.slice(C.length))}return u+p}});var wQ=w((xgt,Pne)=>{"use strict";var Dje=lo(),kje=pl(),Rje=gT(),fT=class extends kje{constructor(e){super({...e,multiple:!0}),this.type="form",this.initial=this.options.initial,this.align=[this.options.align,"right"].find(t=>t!=null),this.emptyError="",this.values={}}async reset(e){return await super.reset(),e===!0&&(this._index=this.index),this.index=this._index,this.values={},this.choices.forEach(t=>t.reset&&t.reset()),this.render()}dispatch(e){return!!e&&this.append(e)}append(e){let t=this.focused;if(!t)return this.alert();let{cursor:i,input:n}=t;return t.value=t.input=n.slice(0,i)+e+n.slice(i),t.cursor++,this.render()}delete(){let e=this.focused;if(!e||e.cursor<=0)return this.alert();let{cursor:t,input:i}=e;return e.value=e.input=i.slice(0,t-1)+i.slice(t),e.cursor--,this.render()}deleteForward(){let e=this.focused;if(!e)return this.alert();let{cursor:t,input:i}=e;if(i[t]===void 0)return this.alert();let n=`${i}`.slice(0,t)+`${i}`.slice(t+1);return e.value=e.input=n,this.render()}right(){let e=this.focused;return e?e.cursor>=e.input.length?this.alert():(e.cursor++,this.render()):this.alert()}left(){let e=this.focused;return e?e.cursor<=0?this.alert():(e.cursor--,this.render()):this.alert()}space(e,t){return this.dispatch(e,t)}number(e,t){return this.dispatch(e,t)}next(){let e=this.focused;if(!e)return this.alert();let{initial:t,input:i}=e;return t&&t.startsWith(i)&&i!==t?(e.value=e.input=t,e.cursor=e.value.length,this.render()):super.next()}prev(){let e=this.focused;return e?e.cursor===0?super.prev():(e.value=e.input="",e.cursor=0,this.render()):this.alert()}separator(){return""}format(e){return this.state.submitted?"":super.format(e)}pointer(){return""}indicator(e){return e.input?"\u29BF":"\u2299"}async choiceSeparator(e,t){let i=await this.resolve(e.separator,this.state,e,t)||":";return i?" "+this.styles.disabled(i):""}async renderChoice(e,t){await this.onChoice(e,t);let{state:i,styles:n}=this,{cursor:s,initial:o="",name:a,hint:l,input:c=""}=e,{muted:u,submitted:g,primary:f,danger:h}=n,p=l,C=this.index===t,y=e.validate||(()=>!0),B=await this.choiceSeparator(e,t),v=e.message;this.align==="right"&&(v=v.padStart(this.longest+1," ")),this.align==="left"&&(v=v.padEnd(this.longest+1," "));let D=this.values[a]=c||o,L=c?"success":"dark";await y.call(e,D,this.state)!==!0&&(L="danger");let H=n[L],j=H(await this.indicator(e,t))+(e.pad||""),$=this.indent(e),V=()=>[$,j,v+B,c,p].filter(Boolean).join(" ");if(i.submitted)return v=Dje.unstyle(v),c=g(c),p="",V();if(e.format)c=await e.format.call(this,c,e,t);else{let W=this.styles.muted;c=Rje(this,{input:c,initial:o,pos:s,showCursor:C,color:W})}return this.isValue(c)||(c=this.styles.muted(this.symbols.ellipsis)),e.result&&(this.values[a]=await e.result.call(this,D,e,t)),C&&(v=f(v)),e.error?c+=(c?" ":"")+h(e.error.trim()):e.hint&&(c+=(c?" ":"")+u(e.hint.trim())),V()}async submit(){return this.value=this.values,super.base.submit.call(this)}};Pne.exports=fT});var hT=w((Pgt,kne)=>{"use strict";var Fje=wQ(),Nje=()=>{throw new Error("expected prompt to have a custom authenticate method")},Dne=(r=Nje)=>{class e extends Fje{constructor(i){super(i)}async submit(){this.value=await r.call(this,this.values,this.state),super.base.submit.call(this)}static create(i){return Dne(i)}}return e};kne.exports=Dne()});var Nne=w((Dgt,Fne)=>{"use strict";var Lje=hT();function Tje(r,e){return r.username===this.options.username&&r.password===this.options.password}var Rne=(r=Tje)=>{let e=[{name:"username",message:"username"},{name:"password",message:"password",format(i){return this.options.showPassword?i:(this.state.submitted?this.styles.primary:this.styles.muted)(this.symbols.asterisk.repeat(i.length))}}];class t extends Lje.create(r){constructor(n){super({...n,choices:e})}static create(n){return Rne(n)}}return t};Fne.exports=Rne()});var BQ=w((kgt,Lne)=>{"use strict";var Oje=Uh(),{isPrimitive:Mje,hasColor:Kje}=ji(),pT=class extends Oje{constructor(e){super(e),this.cursorHide()}async initialize(){let e=await this.resolve(this.initial,this.state);this.input=await this.cast(e),await super.initialize()}dispatch(e){return this.isValue(e)?(this.input=e,this.submit()):this.alert()}format(e){let{styles:t,state:i}=this;return i.submitted?t.success(e):t.primary(e)}cast(e){return this.isTrue(e)}isTrue(e){return/^[ty1]/i.test(e)}isFalse(e){return/^[fn0]/i.test(e)}isValue(e){return Mje(e)&&(this.isTrue(e)||this.isFalse(e))}async hint(){if(this.state.status==="pending"){let e=await this.element("hint");return Kje(e)?e:this.styles.muted(e)}}async render(){let{input:e,size:t}=this.state,i=await this.prefix(),n=await this.separator(),s=await this.message(),o=this.styles.muted(this.default),a=[i,s,o,n].filter(Boolean).join(" ");this.state.prompt=a;let l=await this.header(),c=this.value=this.cast(e),u=await this.format(c),g=await this.error()||await this.hint(),f=await this.footer();g&&!a.includes(g)&&(u+=" "+g),a+=" "+u,this.clear(t),this.write([l,a,f].filter(Boolean).join(`
+`)),this.restore()}set value(e){super.value=e}get value(){return this.cast(super.value)}};Lne.exports=pT});var One=w((Rgt,Tne)=>{"use strict";var Uje=BQ(),dT=class extends Uje{constructor(e){super(e),this.default=this.options.default||(this.initial?"(Y/n)":"(y/N)")}};Tne.exports=dT});var Kne=w((Fgt,Mne)=>{"use strict";var Hje=pl(),Gje=wQ(),Hh=Gje.prototype,CT=class extends Hje{constructor(e){super({...e,multiple:!0}),this.align=[this.options.align,"left"].find(t=>t!=null),this.emptyError="",this.values={}}dispatch(e,t){let i=this.focused,n=i.parent||{};return!i.editable&&!n.editable&&(e==="a"||e==="i")?super[e]():Hh.dispatch.call(this,e,t)}append(e,t){return Hh.append.call(this,e,t)}delete(e,t){return Hh.delete.call(this,e,t)}space(e){return this.focused.editable?this.append(e):super.space()}number(e){return this.focused.editable?this.append(e):super.number(e)}next(){return this.focused.editable?Hh.next.call(this):super.next()}prev(){return this.focused.editable?Hh.prev.call(this):super.prev()}async indicator(e,t){let i=e.indicator||"",n=e.editable?i:super.indicator(e,t);return await this.resolve(n,this.state,e,t)||""}indent(e){return e.role==="heading"?"":e.editable?" ":"  "}async renderChoice(e,t){return e.indent="",e.editable?Hh.renderChoice.call(this,e,t):super.renderChoice(e,t)}error(){return""}footer(){return this.state.error}async validate(){let e=!0;for(let t of this.choices){if(typeof t.validate!="function"||t.role==="heading")continue;let i=t.parent?this.value[t.parent.name]:this.value;if(t.editable?i=t.value===t.name?t.initial||"":t.value:this.isDisabled(t)||(i=t.enabled===!0),e=await t.validate(i,this.state),e!==!0)break}return e!==!0&&(this.state.error=typeof e=="string"?e:"Invalid Input"),e}submit(){if(this.focused.newChoice===!0)return super.submit();if(this.choices.some(e=>e.newChoice))return this.alert();this.value={};for(let e of this.choices){let t=e.parent?this.value[e.parent.name]:this.value;if(e.role==="heading"){this.value[e.name]={};continue}e.editable?t[e.name]=e.value===e.name?e.initial||"":e.value:this.isDisabled(e)||(t[e.name]=e.enabled===!0)}return this.base.submit.call(this)}};Mne.exports=CT});var iu=w((Ngt,Une)=>{"use strict";var Yje=Uh(),jje=gT(),{isPrimitive:qje}=ji(),mT=class extends Yje{constructor(e){super(e),this.initial=qje(this.initial)?String(this.initial):"",this.initial&&this.cursorHide(),this.state.prevCursor=0,this.state.clipboard=[]}async keypress(e,t={}){let i=this.state.prevKeypress;return this.state.prevKeypress=t,this.options.multiline===!0&&t.name==="return"&&(!i||i.name!=="return")?this.append(`
+`,t):super.keypress(e,t)}moveCursor(e){this.cursor+=e}reset(){return this.input=this.value="",this.cursor=0,this.render()}dispatch(e,t){if(!e||t.ctrl||t.code)return this.alert();this.append(e)}append(e){let{cursor:t,input:i}=this.state;this.input=`${i}`.slice(0,t)+e+`${i}`.slice(t),this.moveCursor(String(e).length),this.render()}insert(e){this.append(e)}delete(){let{cursor:e,input:t}=this.state;if(e<=0)return this.alert();this.input=`${t}`.slice(0,e-1)+`${t}`.slice(e),this.moveCursor(-1),this.render()}deleteForward(){let{cursor:e,input:t}=this.state;if(t[e]===void 0)return this.alert();this.input=`${t}`.slice(0,e)+`${t}`.slice(e+1),this.render()}cutForward(){let e=this.cursor;if(this.input.length<=e)return this.alert();this.state.clipboard.push(this.input.slice(e)),this.input=this.input.slice(0,e),this.render()}cutLeft(){let e=this.cursor;if(e===0)return this.alert();let t=this.input.slice(0,e),i=this.input.slice(e),n=t.split(" ");this.state.clipboard.push(n.pop()),this.input=n.join(" "),this.cursor=this.input.length,this.input+=i,this.render()}paste(){if(!this.state.clipboard.length)return this.alert();this.insert(this.state.clipboard.pop()),this.render()}toggleCursor(){this.state.prevCursor?(this.cursor=this.state.prevCursor,this.state.prevCursor=0):(this.state.prevCursor=this.cursor,this.cursor=0),this.render()}first(){this.cursor=0,this.render()}last(){this.cursor=this.input.length-1,this.render()}next(){let e=this.initial!=null?String(this.initial):"";if(!e||!e.startsWith(this.input))return this.alert();this.input=this.initial,this.cursor=this.initial.length,this.render()}prev(){if(!this.input)return this.alert();this.reset()}backward(){return this.left()}forward(){return this.right()}right(){return this.cursor>=this.input.length?this.alert():(this.moveCursor(1),this.render())}left(){return this.cursor<=0?this.alert():(this.moveCursor(-1),this.render())}isValue(e){return!!e}async format(e=this.value){let t=await this.resolve(this.initial,this.state);return this.state.submitted?this.styles.submitted(e||t):jje(this,{input:e,initial:t,pos:this.cursor})}async render(){let e=this.state.size,t=await this.prefix(),i=await this.separator(),n=await this.message(),s=[t,n,i].filter(Boolean).join(" ");this.state.prompt=s;let o=await this.header(),a=await this.format(),l=await this.error()||await this.hint(),c=await this.footer();l&&!a.includes(l)&&(a+=" "+l),s+=" "+a,this.clear(e),this.write([o,s,c].filter(Boolean).join(`
+`)),this.restore()}};Une.exports=mT});var Gne=w((Lgt,Hne)=>{"use strict";var Jje=r=>r.filter((e,t)=>r.lastIndexOf(e)===t),QQ=r=>Jje(r).filter(Boolean);Hne.exports=(r,e={},t="")=>{let{past:i=[],present:n=""}=e,s,o;switch(r){case"prev":case"undo":return s=i.slice(0,i.length-1),o=i[i.length-1]||"",{past:QQ([t,...s]),present:o};case"next":case"redo":return s=i.slice(1),o=i[0]||"",{past:QQ([...s,t]),present:o};case"save":return{past:QQ([...i,t]),present:""};case"remove":return o=QQ(i.filter(a=>a!==t)),n="",o.length&&(n=o.pop()),{past:o,present:n};default:throw new Error(`Invalid action: "${r}"`)}}});var IT=w((Tgt,jne)=>{"use strict";var Wje=iu(),Yne=Gne(),ET=class extends Wje{constructor(e){super(e);let t=this.options.history;if(t&&t.store){let i=t.values||this.initial;this.autosave=!!t.autosave,this.store=t.store,this.data=this.store.get("values")||{past:[],present:i},this.initial=this.data.present||this.data.past[this.data.past.length-1]}}completion(e){return this.store?(this.data=Yne(e,this.data,this.input),this.data.present?(this.input=this.data.present,this.cursor=this.input.length,this.render()):this.alert()):this.alert()}altUp(){return this.completion("prev")}altDown(){return this.completion("next")}prev(){return this.save(),super.prev()}save(){!this.store||(this.data=Yne("save",this.data,this.input),this.store.set("values",this.data))}submit(){return this.store&&this.autosave===!0&&this.save(),super.submit()}};jne.exports=ET});var Jne=w((Ogt,qne)=>{"use strict";var zje=iu(),yT=class extends zje{format(){return""}};qne.exports=yT});var zne=w((Mgt,Wne)=>{"use strict";var Vje=iu(),wT=class extends Vje{constructor(e={}){super(e),this.sep=this.options.separator||/, */,this.initial=e.initial||""}split(e=this.value){return e?String(e).split(this.sep):[]}format(){let e=this.state.submitted?this.styles.primary:t=>t;return this.list.map(e).join(", ")}async submit(e){let t=this.state.error||await this.validate(this.list,this.state);return t!==!0?(this.state.error=t,super.submit()):(this.value=this.list,super.submit())}get list(){return this.split()}};Wne.exports=wT});var Xne=w((Kgt,Vne)=>{"use strict";var Xje=pl(),BT=class extends Xje{constructor(e){super({...e,multiple:!0})}};Vne.exports=BT});var bT=w((Ugt,Zne)=>{"use strict";var Zje=iu(),QT=class extends Zje{constructor(e={}){super({style:"number",...e}),this.min=this.isValue(e.min)?this.toNumber(e.min):-1/0,this.max=this.isValue(e.max)?this.toNumber(e.max):1/0,this.delay=e.delay!=null?e.delay:1e3,this.float=e.float!==!1,this.round=e.round===!0||e.float===!1,this.major=e.major||10,this.minor=e.minor||1,this.initial=e.initial!=null?e.initial:"",this.input=String(this.initial),this.cursor=this.input.length,this.cursorShow()}append(e){return!/[-+.]/.test(e)||e==="."&&this.input.includes(".")?this.alert("invalid number"):super.append(e)}number(e){return super.append(e)}next(){return this.input&&this.input!==this.initial?this.alert():this.isValue(this.initial)?(this.input=this.initial,this.cursor=String(this.initial).length,this.render()):this.alert()}up(e){let t=e||this.minor,i=this.toNumber(this.input);return i>this.max+t?this.alert():(this.input=`${i+t}`,this.render())}down(e){let t=e||this.minor,i=this.toNumber(this.input);return i<this.min-t?this.alert():(this.input=`${i-t}`,this.render())}shiftDown(){return this.down(this.major)}shiftUp(){return this.up(this.major)}format(e=this.input){return typeof this.options.format=="function"?this.options.format.call(this,e):this.styles.info(e)}toNumber(e=""){return this.float?+e:Math.round(+e)}isValue(e){return/^[-+]?[0-9]+((\.)|(\.[0-9]+))?$/.test(e)}submit(){let e=[this.input,this.initial].find(t=>this.isValue(t));return this.value=this.toNumber(e||0),super.submit()}};Zne.exports=QT});var $ne=w((Hgt,_ne)=>{_ne.exports=bT()});var tse=w((Ggt,ese)=>{"use strict";var _je=iu(),ST=class extends _je{constructor(e){super(e),this.cursorShow()}format(e=this.input){return this.keypressed?(this.state.submitted?this.styles.primary:this.styles.muted)(this.symbols.asterisk.repeat(e.length)):""}};ese.exports=ST});var nse=w((Ygt,ise)=>{"use strict";var $je=lo(),eqe=Lm(),rse=ji(),vT=class extends eqe{constructor(e={}){super(e),this.widths=[].concat(e.messageWidth||50),this.align=[].concat(e.align||"left"),this.linebreak=e.linebreak||!1,this.edgeLength=e.edgeLength||3,this.newline=e.newline||`
+   `;let t=e.startNumber||1;typeof this.scale=="number"&&(this.scaleKey=!1,this.scale=Array(this.scale).fill(0).map((i,n)=>({name:n+t})))}async reset(){return this.tableized=!1,await super.reset(),this.render()}tableize(){if(this.tableized===!0)return;this.tableized=!0;let e=0;for(let t of this.choices){e=Math.max(e,t.message.length),t.scaleIndex=t.initial||2,t.scale=[];for(let i=0;i<this.scale.length;i++)t.scale.push({index:i})}this.widths[0]=Math.min(this.widths[0],e+3)}async dispatch(e,t){if(this.multiple)return this[t.name]?await this[t.name](e,t):await super.dispatch(e,t);this.alert()}heading(e,t,i){return this.styles.strong(e)}separator(){return this.styles.muted(this.symbols.ellipsis)}right(){let e=this.focused;return e.scaleIndex>=this.scale.length-1?this.alert():(e.scaleIndex++,this.render())}left(){let e=this.focused;return e.scaleIndex<=0?this.alert():(e.scaleIndex--,this.render())}indent(){return""}format(){return this.state.submitted?this.choices.map(t=>this.styles.info(t.index)).join(", "):""}pointer(){return""}renderScaleKey(){if(this.scaleKey===!1||this.state.submitted)return"";let e=this.scale.map(i=>`   ${i.name} - ${i.message}`);return["",...e].map(i=>this.styles.muted(i)).join(`
+`)}renderScaleHeading(e){let t=this.scale.map(l=>l.name);typeof this.options.renderScaleHeading=="function"&&(t=this.options.renderScaleHeading.call(this,e));let i=this.scaleLength-t.join("").length,n=Math.round(i/(t.length-1)),o=t.map(l=>this.styles.strong(l)).join(" ".repeat(n)),a=" ".repeat(this.widths[0]);return this.margin[3]+a+this.margin[1]+o}scaleIndicator(e,t,i){if(typeof this.options.scaleIndicator=="function")return this.options.scaleIndicator.call(this,e,t,i);let n=e.scaleIndex===t.index;return t.disabled?this.styles.hint(this.symbols.radio.disabled):n?this.styles.success(this.symbols.radio.on):this.symbols.radio.off}renderScale(e,t){let i=e.scale.map(s=>this.scaleIndicator(e,s,t)),n=this.term==="Hyper"?"":" ";return i.join(n+this.symbols.line.repeat(this.edgeLength))}async renderChoice(e,t){await this.onChoice(e,t);let i=this.index===t,n=await this.pointer(e,t),s=await e.hint;s&&!rse.hasColor(s)&&(s=this.styles.muted(s));let o=p=>this.margin[3]+p.replace(/\s+$/,"").padEnd(this.widths[0]," "),a=this.newline,l=this.indent(e),c=await this.resolve(e.message,this.state,e,t),u=await this.renderScale(e,t),g=this.margin[1]+this.margin[3];this.scaleLength=$je.unstyle(u).length,this.widths[0]=Math.min(this.widths[0],this.width-this.scaleLength-g.length);let h=rse.wordWrap(c,{width:this.widths[0],newline:a}).split(`
+`).map(p=>o(p)+this.margin[1]);return i&&(u=this.styles.info(u),h=h.map(p=>this.styles.info(p))),h[0]+=u,this.linebreak&&h.push(""),[l+n,h.join(`
+`)].filter(Boolean)}async renderChoices(){if(this.state.submitted)return"";this.tableize();let e=this.visible.map(async(n,s)=>await this.renderChoice(n,s)),t=await Promise.all(e),i=await this.renderScaleHeading();return this.margin[0]+[i,...t.map(n=>n.join(" "))].join(`
+`)}async render(){let{submitted:e,size:t}=this.state,i=await this.prefix(),n=await this.separator(),s=await this.message(),o="";this.options.promptLine!==!1&&(o=[i,s,n,""].join(" "),this.state.prompt=o);let a=await this.header(),l=await this.format(),c=await this.renderScaleKey(),u=await this.error()||await this.hint(),g=await this.renderChoices(),f=await this.footer(),h=this.emptyError;l&&(o+=l),u&&!o.includes(u)&&(o+=" "+u),e&&!l&&!g.trim()&&this.multiple&&h!=null&&(o+=this.styles.danger(h)),this.clear(t),this.write([a,o,c,g,f].filter(Boolean).join(`
+`)),this.state.submitted||this.write(this.margin[2]),this.restore()}submit(){this.value={};for(let e of this.choices)this.value[e.name]=e.scaleIndex;return this.base.submit.call(this)}};ise.exports=vT});var ase=w((jgt,ose)=>{"use strict";var sse=lo(),tqe=(r="")=>typeof r=="string"?r.replace(/^['"]|['"]$/g,""):"",PT=class{constructor(e){this.name=e.key,this.field=e.field||{},this.value=tqe(e.initial||this.field.initial||""),this.message=e.message||this.name,this.cursor=0,this.input="",this.lines=[]}},rqe=async(r={},e={},t=i=>i)=>{let i=new Set,n=r.fields||[],s=r.template,o=[],a=[],l=[],c=1;typeof s=="function"&&(s=await s());let u=-1,g=()=>s[++u],f=()=>s[u+1],h=p=>{p.line=c,o.push(p)};for(h({type:"bos",value:""});u<s.length-1;){let p=g();if(/^[^\S\n ]$/.test(p)){h({type:"text",value:p});continue}if(p===`
+`){h({type:"newline",value:p}),c++;continue}if(p==="\\"){p+=g(),h({type:"text",value:p});continue}if((p==="$"||p==="#"||p==="{")&&f()==="{"){p+=g();let B={type:"template",open:p,inner:"",close:"",value:p},v;for(;v=g();){if(v==="}"){f()==="}"&&(v+=g()),B.value+=v,B.close=v;break}v===":"?(B.initial="",B.key=B.inner):B.initial!==void 0&&(B.initial+=v),B.value+=v,B.inner+=v}B.template=B.open+(B.initial||B.inner)+B.close,B.key=B.key||B.inner,e.hasOwnProperty(B.key)&&(B.initial=e[B.key]),B=t(B),h(B),l.push(B.key),i.add(B.key);let D=a.find(L=>L.name===B.key);B.field=n.find(L=>L.name===B.key),D||(D=new PT(B),a.push(D)),D.lines.push(B.line-1);continue}let C=o[o.length-1];C.type==="text"&&C.line===c?C.value+=p:h({type:"text",value:p})}return h({type:"eos",value:""}),{input:s,tabstops:o,unique:i,keys:l,items:a}};ose.exports=async r=>{let e=r.options,t=new Set(e.required===!0?[]:e.required||[]),i={...e.values,...e.initial},{tabstops:n,items:s,keys:o}=await rqe(e,i),a=xT("result",r,e),l=xT("format",r,e),c=xT("validate",r,e,!0),u=r.isValue.bind(r);return async(g={},f=!1)=>{let h=0;g.required=t,g.items=s,g.keys=o,g.output="";let p=async(v,D,L,H)=>{let j=await c(v,D,L,H);return j===!1?"Invalid field "+L.name:j};for(let v of n){let D=v.value,L=v.key;if(v.type!=="template"){D&&(g.output+=D);continue}if(v.type==="template"){let H=s.find(_=>_.name===L);e.required===!0&&g.required.add(H.name);let j=[H.input,g.values[H.value],H.value,D].find(u),V=(H.field||{}).message||v.inner;if(f){let _=await p(g.values[L],g,H,h);if(_&&typeof _=="string"||_===!1){g.invalid.set(L,_);continue}g.invalid.delete(L);let A=await a(g.values[L],g,H,h);g.output+=sse.unstyle(A);continue}H.placeholder=!1;let W=D;D=await l(D,g,H,h),j!==D?(g.values[L]=j,D=r.styles.typing(j),g.missing.delete(V)):(g.values[L]=void 0,j=`<${V}>`,D=r.styles.primary(j),H.placeholder=!0,g.required.has(L)&&g.missing.add(V)),g.missing.has(V)&&g.validating&&(D=r.styles.warning(j)),g.invalid.has(L)&&g.validating&&(D=r.styles.danger(j)),h===g.index&&(W!==D?D=r.styles.underline(D):D=r.styles.heading(sse.unstyle(D))),h++}D&&(g.output+=D)}let C=g.output.split(`
+`).map(v=>" "+v),y=s.length,B=0;for(let v of s)g.invalid.has(v.name)&&v.lines.forEach(D=>{C[D][0]===" "&&(C[D]=g.styles.danger(g.symbols.bullet)+C[D].slice(1))}),r.isValue(g.values[v.name])&&B++;return g.completed=(B/y*100).toFixed(0),g.output=C.join(`
+`),g.output}};function xT(r,e,t,i){return(n,s,o,a)=>typeof o.field[r]=="function"?o.field[r].call(e,n,s,o,a):[i,n].find(l=>e.isValue(l))}});var lse=w((qgt,Ase)=>{"use strict";var iqe=lo(),nqe=ase(),sqe=Uh(),DT=class extends sqe{constructor(e){super(e),this.cursorHide(),this.reset(!0)}async initialize(){this.interpolate=await nqe(this),await super.initialize()}async reset(e){this.state.keys=[],this.state.invalid=new Map,this.state.missing=new Set,this.state.completed=0,this.state.values={},e!==!0&&(await this.initialize(),await this.render())}moveCursor(e){let t=this.getItem();this.cursor+=e,t.cursor+=e}dispatch(e,t){if(!t.code&&!t.ctrl&&e!=null&&this.getItem()){this.append(e,t);return}this.alert()}append(e,t){let i=this.getItem(),n=i.input.slice(0,this.cursor),s=i.input.slice(this.cursor);this.input=i.input=`${n}${e}${s}`,this.moveCursor(1),this.render()}delete(){let e=this.getItem();if(this.cursor<=0||!e.input)return this.alert();let t=e.input.slice(this.cursor),i=e.input.slice(0,this.cursor-1);this.input=e.input=`${i}${t}`,this.moveCursor(-1),this.render()}increment(e){return e>=this.state.keys.length-1?0:e+1}decrement(e){return e<=0?this.state.keys.length-1:e-1}first(){this.state.index=0,this.render()}last(){this.state.index=this.state.keys.length-1,this.render()}right(){if(this.cursor>=this.input.length)return this.alert();this.moveCursor(1),this.render()}left(){if(this.cursor<=0)return this.alert();this.moveCursor(-1),this.render()}prev(){this.state.index=this.decrement(this.state.index),this.getItem(),this.render()}next(){this.state.index=this.increment(this.state.index),this.getItem(),this.render()}up(){this.prev()}down(){this.next()}format(e){let t=this.state.completed<100?this.styles.warning:this.styles.success;return this.state.submitted===!0&&this.state.completed!==100&&(t=this.styles.danger),t(`${this.state.completed}% completed`)}async render(){let{index:e,keys:t=[],submitted:i,size:n}=this.state,s=[this.options.newline,`
+`].find(v=>v!=null),o=await this.prefix(),a=await this.separator(),l=await this.message(),c=[o,l,a].filter(Boolean).join(" ");this.state.prompt=c;let u=await this.header(),g=await this.error()||"",f=await this.hint()||"",h=i?"":await this.interpolate(this.state),p=this.state.key=t[e]||"",C=await this.format(p),y=await this.footer();C&&(c+=" "+C),f&&!C&&this.state.completed===0&&(c+=" "+f),this.clear(n);let B=[u,c,h,y,g.trim()];this.write(B.filter(Boolean).join(s)),this.restore()}getItem(e){let{items:t,keys:i,index:n}=this.state,s=t.find(o=>o.name===i[n]);return s&&s.input!=null&&(this.input=s.input,this.cursor=s.cursor),s}async submit(){typeof this.interpolate!="function"&&await this.initialize(),await this.interpolate(this.state,!0);let{invalid:e,missing:t,output:i,values:n}=this.state;if(e.size){let a="";for(let[l,c]of e)a+=`Invalid ${l}: ${c}
+`;return this.state.error=a,super.submit()}if(t.size)return this.state.error="Required: "+[...t.keys()].join(", "),super.submit();let o=iqe.unstyle(i).split(`
+`).map(a=>a.slice(1)).join(`
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","base64")).toString()),KO)});var sle=w((Zwt,nle)=>{var qO=Symbol("arg flag"),Dn=class extends Error{constructor(e,t){super(e),this.name="ArgError",this.code=t,Object.setPrototypeOf(this,Dn.prototype)}};function aE(r,{argv:e=process.argv.slice(2),permissive:t=!1,stopAtPositional:i=!1}={}){if(!r)throw new Dn("argument specification object is required","ARG_CONFIG_NO_SPEC");let n={_:[]},s={},o={};for(let a of Object.keys(r)){if(!a)throw new Dn("argument key cannot be an empty string","ARG_CONFIG_EMPTY_KEY");if(a[0]!=="-")throw new Dn(`argument key must start with '-' but found: '${a}'`,"ARG_CONFIG_NONOPT_KEY");if(a.length===1)throw new Dn(`argument key must have a name; singular '-' keys are not allowed: ${a}`,"ARG_CONFIG_NONAME_KEY");if(typeof r[a]=="string"){s[a]=r[a];continue}let l=r[a],c=!1;if(Array.isArray(l)&&l.length===1&&typeof l[0]=="function"){let[u]=l;l=(g,f,h=[])=>(h.push(u(g,f,h[h.length-1])),h),c=u===Boolean||u[qO]===!0}else if(typeof l=="function")c=l===Boolean||l[qO]===!0;else throw new Dn(`type missing or not a function or valid array type: ${a}`,"ARG_CONFIG_VAD_TYPE");if(a[1]!=="-"&&a.length>2)throw new Dn(`short argument keys (with a single hyphen) must have only one character: ${a}`,"ARG_CONFIG_SHORTOPT_TOOLONG");o[a]=[l,c]}for(let a=0,l=e.length;a<l;a++){let c=e[a];if(i&&n._.length>0){n._=n._.concat(e.slice(a));break}if(c==="--"){n._=n._.concat(e.slice(a+1));break}if(c.length>1&&c[0]==="-"){let u=c[1]==="-"||c.length===2?[c]:c.slice(1).split("").map(g=>`-${g}`);for(let g=0;g<u.length;g++){let f=u[g],[h,p]=f[1]==="-"?f.split(/=(.*)/,2):[f,void 0],C=h;for(;C in s;)C=s[C];if(!(C in o))if(t){n._.push(f);continue}else throw new Dn(`unknown or unexpected option: ${h}`,"ARG_UNKNOWN_OPTION");let[y,B]=o[C];if(!B&&g+1<u.length)throw new Dn(`option requires argument (but was followed by another short argument): ${h}`,"ARG_MISSING_REQUIRED_SHORTARG");if(B)n[C]=y(!0,C,n[C]);else if(p===void 0){if(e.length<a+2||e[a+1].length>1&&e[a+1][0]==="-"&&!(e[a+1].match(/^-?\d*(\.(?=\d))?\d*$/)&&(y===Number||typeof BigInt<"u"&&y===BigInt))){let v=h===C?"":` (alias for ${C})`;throw new Dn(`option requires argument: ${h}${v}`,"ARG_MISSING_REQUIRED_LONGARG")}n[C]=y(e[a+1],C,n[C]),++a}else n[C]=y(p,C,n[C])}}else n._.push(c)}return n}aE.flag=r=>(r[qO]=!0,r);aE.COUNT=aE.flag((r,e,t)=>(t||0)+1);aE.ArgError=Dn;nle.exports=aE});var dle=w((vBt,ple)=>{var VO;ple.exports=()=>(typeof VO>"u"&&(VO=J("zlib").brotliDecompressSync(Buffer.from("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+  @SET PATHEXT=%PATHEXT:;.JS;=;%\r
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+basedir=$(dirname "$(echo "$0" | sed -e 's,\\\\,/,g')")
+
+case \`uname\` in
+    *CYGWIN*) basedir=\`cygpath -w "$basedir"\`;;
+esac
+
+`,g=t.nodePath?`export NODE_PATH="${l}"
+`:"";return s?u+=`${g}if [ -x ${s} ]; then
+  exec ${s} ${a} ${i} ${c}"$@"
+else
+  exec ${n} ${a} ${i} ${c}"$@"
+fi
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+
+$exe=""
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+  # Fix case when both the Windows and Linux builds of Node
+  # are installed in the same directory
+  $exe=".exe"
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+  }
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+} else {
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-      };
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-
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-    };
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-
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-/***/ (function(module, exports, __webpack_require__) {
-
-/*
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- */
-
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-var mod_util = __webpack_require__(3);
-
-var mod_extsprintf = __webpack_require__(961);
-var mod_isError = __webpack_require__(113).isError;
-var sprintf = mod_extsprintf.sprintf;
-
-/*
- * Public interface
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+`:h+=`
+# Support pipeline input
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+} else {
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+}
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n;return r>0?n=Tce(r,e):n=null,n===null?(e.needReadable=e.length<=e.highWaterMark,r=0):(e.length-=r,e.awaitDrain=0),e.length===0&&(e.ended||(e.needReadable=!0),t!==r&&e.ended&&UM(this)),n!==null&&this.emit("data",n),n};function x6e(r,e){if(Dt("onEofChunk"),!e.ended){if(e.decoder){var t=e.decoder.end();t&&t.length&&(e.buffer.push(t),e.length+=e.objectMode?1:t.length)}e.ended=!0,e.sync?Sb(r):(e.needReadable=!1,e.emittedReadable||(e.emittedReadable=!0,Nce(r)))}}function Sb(r){var e=r._readableState;Dt("emitReadable",e.needReadable,e.emittedReadable),e.needReadable=!1,e.emittedReadable||(Dt("emitReadable",e.flowing),e.emittedReadable=!0,process.nextTick(Nce,r))}function Nce(r){var e=r._readableState;Dt("emitReadable_",e.destroyed,e.length,e.ended),!e.destroyed&&(e.length||e.ended)&&(r.emit("readable"),e.emittedReadable=!1),e.needReadable=!e.flowing&&!e.ended&&e.length<=e.highWaterMark,YM(r)}function HM(r,e){e.readingMore||(e.readingMore=!0,process.nextTick(P6e,r,e))}function 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qp={};ut(qp,{AliasFS:()=>bo,CwdFS:()=>qt,DEFAULT_COMPRESSION_LEVEL:()=>Jl,FakeFS:()=>Ea,Filename:()=>xt,JailFS:()=>So,LazyFS:()=>Bg,LinkStrategy:()=>dS,NoFS:()=>Gp,NodeFS:()=>$t,PortablePath:()=>Oe,PosixFS:()=>Qg,ProxiedFS:()=>pi,VirtualFS:()=>Br,ZipFS:()=>Wr,ZipOpenFS:()=>On,constants:()=>xr,extendFs:()=>nI,normalizeLineEndings:()=>ql,npath:()=>K,opendir:()=>ZE,patchFs:()=>QS,ppath:()=>x,statUtils:()=>Tp,toFilename:()=>Ur,xfs:()=>M});var xr={};ut(xr,{SAFE_TIME:()=>eK,S_IFDIR:()=>Gl,S_IFLNK:()=>jl,S_IFMT:()=>Ys,S_IFREG:()=>Yl});var Ys=61440,Gl=16384,Yl=32768,jl=40960,eK=456789e3;var Tp={};ut(Tp,{BigIntStatsEntry:()=>Ig,DEFAULT_MODE:()=>Np,DirEntry:()=>lS,StatEntry:()=>ma,areStatsEqual:()=>uS,clearStats:()=>YE,convertToBigIntStats:()=>jE,makeDefaultStats:()=>Lp,makeEmptyStats:()=>kge});var cS=Pe(J("util"));var Np=33188,lS=class{constructor(){this.name="";this.mode=0}isBlockDevice(){return!1}isCharacterDevice(){return!1}isDirectory(){return(this.mode&61440)===16384}isFIFO(){return!1}isFile(){return(this.mode&61440)===32768}isSocket(){return!1}isSymbolicLink(){return(this.mode&61440)===40960}},ma=class{constructor(){this.uid=0;this.gid=0;this.size=0;this.blksize=0;this.atimeMs=0;this.mtimeMs=0;this.ctimeMs=0;this.birthtimeMs=0;this.atime=new Date(0);this.mtime=new Date(0);this.ctime=new Date(0);this.birthtime=new Date(0);this.dev=0;this.ino=0;this.mode=Np;this.nlink=1;this.rdev=0;this.blocks=1}isBlockDevice(){return!1}isCharacterDevice(){return!1}isDirectory(){return(this.mode&61440)===16384}isFIFO(){return!1}isFile(){return(this.mode&61440)===32768}isSocket(){return!1}isSymbolicLink(){return(this.mode&61440)===40960}},Ig=class{constructor(){this.uid=BigInt(0);this.gid=BigInt(0);this.size=BigInt(0);this.blksize=BigInt(0);this.atimeMs=BigInt(0);this.mtimeMs=BigInt(0);this.ctimeMs=BigInt(0);this.birthtimeMs=BigInt(0);this.atimeNs=BigInt(0);this.mtimeNs=BigInt(0);this.ctimeNs=BigInt(0);this.birthtimeNs=BigInt(0);this.atime=new Date(0);this.mtime=new Date(0);this.ctime=new Date(0);this.birthtime=new Date(0);this.dev=BigInt(0);this.ino=BigInt(0);this.mode=BigInt(Np);this.nlink=BigInt(1);this.rdev=BigInt(0);this.blocks=BigInt(1)}isBlockDevice(){return!1}isCharacterDevice(){return!1}isDirectory(){return(this.mode&BigInt(61440))===BigInt(16384)}isFIFO(){return!1}isFile(){return(this.mode&BigInt(61440))===BigInt(32768)}isSocket(){return!1}isSymbolicLink(){return(this.mode&BigInt(61440))===BigInt(40960)}};function Lp(){return new ma}function kge(){return YE(Lp())}function YE(r){for(let e in r)if(Object.prototype.hasOwnProperty.call(r,e)){let t=r[e];typeof t=="number"?r[e]=0:typeof t=="bigint"?r[e]=BigInt(0):cS.types.isDate(t)&&(r[e]=new Date(0))}return r}function jE(r){let e=new Ig;for(let t in r)if(Object.prototype.hasOwnProperty.call(r,t)){let i=r[t];typeof i=="number"?e[t]=BigInt(i):cS.types.isDate(i)&&(e[t]=new Date(i))}return e.atimeNs=e.atimeMs*BigInt(1e6),e.mtimeNs=e.mtimeMs*BigInt(1e6),e.ctimeNs=e.ctimeMs*BigInt(1e6),e.birthtimeNs=e.birthtimeMs*BigInt(1e6),e}function 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Oe={root:"/",dot:".",parent:".."},xt={nodeModules:"node_modules",manifest:"package.json",lockfile:"yarn.lock",virtual:"__virtual__",pnpJs:".pnp.js",pnpCjs:".pnp.cjs",rc:".yarnrc.yml"},K=Object.create(Op.default),x=Object.create(Op.default.posix);K.cwd=()=>process.cwd();x.cwd=()=>gS(process.cwd());x.resolve=(...r)=>r.length>0&&x.isAbsolute(r[0])?Op.default.posix.resolve(...r):Op.default.posix.resolve(x.cwd(),...r);var tK=function(r,e,t){return e=r.normalize(e),t=r.normalize(t),e===t?".":(e.endsWith(r.sep)||(e=e+r.sep),t.startsWith(e)?t.slice(e.length):null)};K.fromPortablePath=rK;K.toPortablePath=gS;K.contains=(r,e)=>tK(K,r,e);x.contains=(r,e)=>tK(x,r,e);var Rge=/^([a-zA-Z]:.*)$/,Fge=/^\/\/(\.\/)?(.*)$/,Nge=/^\/([a-zA-Z]:.*)$/,Lge=/^\/unc\/(\.dot\/)?(.*)$/;function rK(r){if(process.platform!=="win32")return r;let e,t;if(e=r.match(Nge))r=e[1];else if(t=r.match(Lge))r=`\\\\${t[1]?".\\":""}${t[2]}`;else return r;return r.replace(/\//g,"\\")}function gS(r){if(process.platform!=="win32")return r;r=r.replace(/\\/g,"/");let e,t;return(e=r.match(Rge))?r=`/${e[1]}`:(t=r.match(Fge))&&(r=`/unc/${t[1]?".dot/":""}${t[2]}`),r}function qE(r,e){return r===K?rK(e):gS(e)}function Ur(r){if(K.parse(r).dir!==""||x.parse(r).dir!=="")throw new Error(`Invalid filename: "${r}"`);return r}var WE=new Date(456789e3*1e3),dS=(t=>(t.Allow="allow",t.ReadOnly="readOnly",t))(dS||{});async function iK(r,e,t,i,n){let s=r.pathUtils.normalize(e),o=t.pathUtils.normalize(i),a=[],l=[],{atime:c,mtime:u}=n.stableTime?{atime:WE,mtime:WE}:await t.lstatPromise(o);await r.mkdirpPromise(r.pathUtils.dirname(e),{utimes:[c,u]});let g=typeof r.lutimesPromise=="function"?r.lutimesPromise.bind(r):r.utimesPromise.bind(r);await hS(a,l,g,r,s,t,o,{...n,didParentExist:!0});for(let f of a)await f();await Promise.all(l.map(f=>f()))}async function hS(r,e,t,i,n,s,o,a){var h,p;let l=a.didParentExist?await Tge(i,n):null,c=await 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u=(f=c.linkStrategy)!=null?f:null,g=i===o?u!==null?Mge(i,n,a,l,u):async()=>i.copyFilePromise(a,n,JE.default.constants.COPYFILE_FICLONE):u!==null?pS(i,n,a,l,u):async()=>i.writeFilePromise(n,await o.readFilePromise(a));return r.push(async()=>g()),!0}async function Uge(r,e,t,i,n,s,o,a,l,c){if(s!==null)if(c.overwrite)r.push(async()=>i.removePromise(n)),s=null;else return!1;return r.push(async()=>{await i.symlinkPromise(qE(i.pathUtils,await o.readlinkPromise(a)),n)}),!0}function os(r,e){return Object.assign(new Error(`${r}: ${e}`),{code:r})}function VE(r){return os("EBUSY",r)}function Mp(r,e){return os("ENOSYS",`${r}, ${e}`)}function SA(r){return os("EINVAL",`invalid argument, ${r}`)}function Hr(r){return os("EBADF",`bad file descriptor, ${r}`)}function js(r){return os("ENOENT",`no such file or directory, ${r}`)}function Qo(r){return os("ENOTDIR",`not a directory, ${r}`)}function Kp(r){return os("EISDIR",`illegal operation on a directory, ${r}`)}function XE(r){return os("EEXIST",`file 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typeof s>"u"?null:Object.assign(r.statSync(r.pathUtils.join(e,s)),{name:s})};return new mS(e,n,i)}var aK=J("os");var Ea=class{constructor(e){this.pathUtils=e}async*genTraversePromise(e,{stableSort:t=!1}={}){let i=[e];for(;i.length>0;){let n=i.shift();if((await this.lstatPromise(n)).isDirectory()){let o=await this.readdirPromise(n);if(t)for(let a of o.sort())i.push(this.pathUtils.join(n,a));else throw new Error("Not supported")}else yield n}}async removePromise(e,{recursive:t=!0,maxRetries:i=5}={}){let n;try{n=await this.lstatPromise(e)}catch(s){if(s.code==="ENOENT")return;throw s}if(n.isDirectory()){if(t){let s=await this.readdirPromise(e);await Promise.all(s.map(o=>this.removePromise(this.pathUtils.resolve(e,o))))}for(let s=0;s<=i;s++)try{await this.rmdirPromise(e);break}catch(o){if(o.code!=="EBUSY"&&o.code!=="ENOTEMPTY")throw o;s<i&&await new Promise(a=>setTimeout(a,s*100))}}else await this.unlinkPromise(e)}removeSync(e,{recursive:t=!0}={}){let i;try{i=this.lstatSync(e)}catch(n){if(n.code==="ENOENT")return;throw n}if(i.isDirectory()){if(t)for(let n of this.readdirSync(e))this.removeSync(this.pathUtils.resolve(e,n));this.rmdirSync(e)}else this.unlinkSync(e)}async mkdirpPromise(e,{chmod:t,utimes:i}={}){if(e=this.resolve(e),e===this.pathUtils.dirname(e))return;let n=e.split(this.pathUtils.sep),s;for(let o=2;o<=n.length;++o){let a=n.slice(0,o).join(this.pathUtils.sep);if(!this.existsSync(a)){try{await this.mkdirPromise(a)}catch(l){if(l.code==="EEXIST")continue;throw l}if(s!=null||(s=a),t!=null&&await this.chmodPromise(a,t),i!=null)await this.utimesPromise(a,i[0],i[1]);else{let l=await this.statPromise(this.pathUtils.dirname(a));await this.utimesPromise(a,l.atime,l.mtime)}}}return s}mkdirpSync(e,{chmod:t,utimes:i}={}){if(e=this.resolve(e),e===this.pathUtils.dirname(e))return;let n=e.split(this.pathUtils.sep),s;for(let o=2;o<=n.length;++o){let a=n.slice(0,o).join(this.pathUtils.sep);if(!this.existsSync(a)){try{this.mkdirSync(a)}catch(l){if(l.code==="EEXIST")continue;throw l}if(s!=null||(s=a),t!=null&&this.chmodSync(a,t),i!=null)this.utimesSync(a,i[0],i[1]);else{let l=this.statSync(this.pathUtils.dirname(a));this.utimesSync(a,l.atime,l.mtime)}}}return s}async copyPromise(e,t,{baseFs:i=this,overwrite:n=!0,stableSort:s=!1,stableTime:o=!1,linkStrategy:a=null}={}){return await iK(this,e,i,t,{overwrite:n,stableSort:s,stableTime:o,linkStrategy:a})}copySync(e,t,{baseFs:i=this,overwrite:n=!0}={}){let s=i.lstatSync(t),o=this.existsSync(e);if(s.isDirectory()){this.mkdirpSync(e);let l=i.readdirSync(t);for(let c of l)this.copySync(this.pathUtils.join(e,c),i.pathUtils.join(t,c),{baseFs:i,overwrite:n})}else if(s.isFile()){if(!o||n){o&&this.removeSync(e);let l=i.readFileSync(t);this.writeFileSync(e,l)}}else if(s.isSymbolicLink()){if(!o||n){o&&this.removeSync(e);let l=i.readlinkSync(t);this.symlinkSync(qE(this.pathUtils,l),e)}}else throw new Error(`Unsupported file type (file: ${t}, mode: 0o${s.mode.toString(8).padStart(6,"0")})`);let a=s.mode&511;this.chmodSync(e,a)}async changeFilePromise(e,t,i={}){return Buffer.isBuffer(t)?this.changeFileBufferPromise(e,t,i):this.changeFileTextPromise(e,t,i)}async changeFileBufferPromise(e,t,{mode:i}={}){let n=Buffer.alloc(0);try{n=await this.readFilePromise(e)}catch{}Buffer.compare(n,t)!==0&&await this.writeFilePromise(e,t,{mode:i})}async changeFileTextPromise(e,t,{automaticNewlines:i,mode:n}={}){let s="";try{s=await this.readFilePromise(e,"utf8")}catch{}let o=i?ql(s,t):t;s!==o&&await this.writeFilePromise(e,o,{mode:n})}changeFileSync(e,t,i={}){return Buffer.isBuffer(t)?this.changeFileBufferSync(e,t,i):this.changeFileTextSync(e,t,i)}changeFileBufferSync(e,t,{mode:i}={}){let n=Buffer.alloc(0);try{n=this.readFileSync(e)}catch{}Buffer.compare(n,t)!==0&&this.writeFileSync(e,t,{mode:i})}changeFileTextSync(e,t,{automaticNewlines:i=!1,mode:n}={}){let s="";try{s=this.readFileSync(e,"utf8")}catch{}let o=i?ql(s,t):t;s!==o&&this.writeFileSync(e,o,{mode:n})}async movePromise(e,t){try{await this.renamePromise(e,t)}catch(i){if(i.code==="EXDEV")await this.copyPromise(t,e),await this.removePromise(e);else throw i}}moveSync(e,t){try{this.renameSync(e,t)}catch(i){if(i.code==="EXDEV")this.copySync(t,e),this.removeSync(e);else throw i}}async lockPromise(e,t){let i=`${e}.flock`,n=1e3/60,s=Date.now(),o=null,a=async()=>{let l;try{[l]=await this.readJsonPromise(i)}catch{return Date.now()-s<500}try{return process.kill(l,0),!0}catch{return!1}};for(;o===null;)try{o=await this.openPromise(i,"wx")}catch(l){if(l.code==="EEXIST"){if(!await a())try{await this.unlinkPromise(i);continue}catch{}if(Date.now()-s<60*1e3)await new Promise(c=>setTimeout(c,n));else throw new Error(`Couldn't acquire a lock in a reasonable time (via ${i})`)}else throw l}await this.writePromise(o,JSON.stringify([process.pid]));try{return await t()}finally{try{await this.closePromise(o),await this.unlinkPromise(i)}catch{}}}async readJsonPromise(e){let t=await this.readFilePromise(e,"utf8");try{return JSON.parse(t)}catch(i){throw i.message+=` (in ${e})`,i}}readJsonSync(e){let t=this.readFileSync(e,"utf8");try{return JSON.parse(t)}catch(i){throw i.message+=` (in ${e})`,i}}async writeJsonPromise(e,t){return await this.writeFilePromise(e,`${JSON.stringify(t,null,2)}
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+`:`
+`}function ql(r,e){return e.replace(/\r?\n/g,Hge(r))}var wg=J("fs"),IS=J("stream"),uK=J("util"),yS=Pe(J("zlib"));var AK=Pe(J("fs"));var $t=class extends vA{constructor(t=AK.default){super();this.realFs=t,typeof this.realFs.lutimes<"u"&&(this.lutimesPromise=this.lutimesPromiseImpl,this.lutimesSync=this.lutimesSyncImpl)}getExtractHint(){return!1}getRealPath(){return Oe.root}resolve(t){return x.resolve(t)}async openPromise(t,i,n){return await new Promise((s,o)=>{this.realFs.open(K.fromPortablePath(t),i,n,this.makeCallback(s,o))})}openSync(t,i,n){return this.realFs.openSync(K.fromPortablePath(t),i,n)}async opendirPromise(t,i){return await new Promise((n,s)=>{typeof i<"u"?this.realFs.opendir(K.fromPortablePath(t),i,this.makeCallback(n,s)):this.realFs.opendir(K.fromPortablePath(t),this.makeCallback(n,s))}).then(n=>Object.defineProperty(n,"path",{value:t,configurable:!0,writable:!0}))}opendirSync(t,i){let n=typeof i<"u"?this.realFs.opendirSync(K.fromPortablePath(t),i):this.realFs.opendirSync(K.fromPortablePath(t));return Object.defineProperty(n,"path",{value:t,configurable:!0,writable:!0})}async readPromise(t,i,n=0,s=0,o=-1){return await new Promise((a,l)=>{this.realFs.read(t,i,n,s,o,(c,u)=>{c?l(c):a(u)})})}readSync(t,i,n,s,o){return this.realFs.readSync(t,i,n,s,o)}async writePromise(t,i,n,s,o){return await new Promise((a,l)=>typeof i=="string"?this.realFs.write(t,i,n,this.makeCallback(a,l)):this.realFs.write(t,i,n,s,o,this.makeCallback(a,l)))}writeSync(t,i,n,s,o){return typeof i=="string"?this.realFs.writeSync(t,i,n):this.realFs.writeSync(t,i,n,s,o)}async closePromise(t){await new Promise((i,n)=>{this.realFs.close(t,this.makeCallback(i,n))})}closeSync(t){this.realFs.closeSync(t)}createReadStream(t,i){let n=t!==null?K.fromPortablePath(t):t;return this.realFs.createReadStream(n,i)}createWriteStream(t,i){let n=t!==null?K.fromPortablePath(t):t;return this.realFs.createWriteStream(n,i)}async realpathPromise(t){return await new Promise((i,n)=>{this.realFs.realpath(K.fromPortablePath(t),{},this.makeCallback(i,n))}).then(i=>K.toPortablePath(i))}realpathSync(t){return K.toPortablePath(this.realFs.realpathSync(K.fromPortablePath(t),{}))}async existsPromise(t){return await new Promise(i=>{this.realFs.exists(K.fromPortablePath(t),i)})}accessSync(t,i){return this.realFs.accessSync(K.fromPortablePath(t),i)}async accessPromise(t,i){return await new Promise((n,s)=>{this.realFs.access(K.fromPortablePath(t),i,this.makeCallback(n,s))})}existsSync(t){return this.realFs.existsSync(K.fromPortablePath(t))}async statPromise(t,i){return await new Promise((n,s)=>{i?this.realFs.stat(K.fromPortablePath(t),i,this.makeCallback(n,s)):this.realFs.stat(K.fromPortablePath(t),this.makeCallback(n,s))})}statSync(t,i){return i?this.realFs.statSync(K.fromPortablePath(t),i):this.realFs.statSync(K.fromPortablePath(t))}async fstatPromise(t,i){return await new Promise((n,s)=>{i?this.realFs.fstat(t,i,this.makeCallback(n,s)):this.realFs.fstat(t,this.makeCallback(n,s))})}fstatSync(t,i){return i?this.realFs.fstatSync(t,i):this.realFs.fstatSync(t)}async lstatPromise(t,i){return await new Promise((n,s)=>{i?this.realFs.lstat(K.fromPortablePath(t),i,this.makeCallback(n,s)):this.realFs.lstat(K.fromPortablePath(t),this.makeCallback(n,s))})}lstatSync(t,i){return i?this.realFs.lstatSync(K.fromPortablePath(t),i):this.realFs.lstatSync(K.fromPortablePath(t))}async fchmodPromise(t,i){return await new Promise((n,s)=>{this.realFs.fchmod(t,i,this.makeCallback(n,s))})}fchmodSync(t,i){return this.realFs.fchmodSync(t,i)}async chmodPromise(t,i){return await new Promise((n,s)=>{this.realFs.chmod(K.fromPortablePath(t),i,this.makeCallback(n,s))})}chmodSync(t,i){return this.realFs.chmodSync(K.fromPortablePath(t),i)}async fchownPromise(t,i,n){return await new Promise((s,o)=>{this.realFs.fchown(t,i,n,this.makeCallback(s,o))})}fchownSync(t,i,n){return this.realFs.fchownSync(t,i,n)}async chownPromise(t,i,n){return await new Promise((s,o)=>{this.realFs.chown(K.fromPortablePath(t),i,n,this.makeCallback(s,o))})}chownSync(t,i,n){return this.realFs.chownSync(K.fromPortablePath(t),i,n)}async renamePromise(t,i){return await new Promise((n,s)=>{this.realFs.rename(K.fromPortablePath(t),K.fromPortablePath(i),this.makeCallback(n,s))})}renameSync(t,i){return this.realFs.renameSync(K.fromPortablePath(t),K.fromPortablePath(i))}async copyFilePromise(t,i,n=0){return await new Promise((s,o)=>{this.realFs.copyFile(K.fromPortablePath(t),K.fromPortablePath(i),n,this.makeCallback(s,o))})}copyFileSync(t,i,n=0){return this.realFs.copyFileSync(K.fromPortablePath(t),K.fromPortablePath(i),n)}async appendFilePromise(t,i,n){return await new Promise((s,o)=>{let a=typeof t=="string"?K.fromPortablePath(t):t;n?this.realFs.appendFile(a,i,n,this.makeCallback(s,o)):this.realFs.appendFile(a,i,this.makeCallback(s,o))})}appendFileSync(t,i,n){let s=typeof t=="string"?K.fromPortablePath(t):t;n?this.realFs.appendFileSync(s,i,n):this.realFs.appendFileSync(s,i)}async writeFilePromise(t,i,n){return await new Promise((s,o)=>{let a=typeof t=="string"?K.fromPortablePath(t):t;n?this.realFs.writeFile(a,i,n,this.makeCallback(s,o)):this.realFs.writeFile(a,i,this.makeCallback(s,o))})}writeFileSync(t,i,n){let s=typeof t=="string"?K.fromPortablePath(t):t;n?this.realFs.writeFileSync(s,i,n):this.realFs.writeFileSync(s,i)}async unlinkPromise(t){return await new Promise((i,n)=>{this.realFs.unlink(K.fromPortablePath(t),this.makeCallback(i,n))})}unlinkSync(t){return this.realFs.unlinkSync(K.fromPortablePath(t))}async utimesPromise(t,i,n){return await new Promise((s,o)=>{this.realFs.utimes(K.fromPortablePath(t),i,n,this.makeCallback(s,o))})}utimesSync(t,i,n){this.realFs.utimesSync(K.fromPortablePath(t),i,n)}async lutimesPromiseImpl(t,i,n){let s=this.realFs.lutimes;if(typeof s>"u")throw Mp("unavailable Node binding",`lutimes '${t}'`);return await new Promise((o,a)=>{s.call(this.realFs,K.fromPortablePath(t),i,n,this.makeCallback(o,a))})}lutimesSyncImpl(t,i,n){let s=this.realFs.lutimesSync;if(typeof s>"u")throw Mp("unavailable Node binding",`lutimes '${t}'`);s.call(this.realFs,K.fromPortablePath(t),i,n)}async mkdirPromise(t,i){return await new Promise((n,s)=>{this.realFs.mkdir(K.fromPortablePath(t),i,this.makeCallback(n,s))})}mkdirSync(t,i){return this.realFs.mkdirSync(K.fromPortablePath(t),i)}async rmdirPromise(t,i){return await new Promise((n,s)=>{i?this.realFs.rmdir(K.fromPortablePath(t),i,this.makeCallback(n,s)):this.realFs.rmdir(K.fromPortablePath(t),this.makeCallback(n,s))})}rmdirSync(t,i){return this.realFs.rmdirSync(K.fromPortablePath(t),i)}async linkPromise(t,i){return await new Promise((n,s)=>{this.realFs.link(K.fromPortablePath(t),K.fromPortablePath(i),this.makeCallback(n,s))})}linkSync(t,i){return this.realFs.linkSync(K.fromPortablePath(t),K.fromPortablePath(i))}async symlinkPromise(t,i,n){return await new Promise((s,o)=>{this.realFs.symlink(K.fromPortablePath(t.replace(/\/+$/,"")),K.fromPortablePath(i),n,this.makeCallback(s,o))})}symlinkSync(t,i,n){return this.realFs.symlinkSync(K.fromPortablePath(t.replace(/\/+$/,"")),K.fromPortablePath(i),n)}async readFilePromise(t,i){return await new Promise((n,s)=>{let o=typeof t=="string"?K.fromPortablePath(t):t;this.realFs.readFile(o,i,this.makeCallback(n,s))})}readFileSync(t,i){let n=typeof t=="string"?K.fromPortablePath(t):t;return this.realFs.readFileSync(n,i)}async readdirPromise(t,i){return await new Promise((n,s)=>{i!=null&&i.withFileTypes?this.realFs.readdir(K.fromPortablePath(t),{withFileTypes:!0},this.makeCallback(n,s)):this.realFs.readdir(K.fromPortablePath(t),this.makeCallback(o=>n(o),s))})}readdirSync(t,i){return i!=null&&i.withFileTypes?this.realFs.readdirSync(K.fromPortablePath(t),{withFileTypes:!0}):this.realFs.readdirSync(K.fromPortablePath(t))}async readlinkPromise(t){return await new Promise((i,n)=>{this.realFs.readlink(K.fromPortablePath(t),this.makeCallback(i,n))}).then(i=>K.toPortablePath(i))}readlinkSync(t){return K.toPortablePath(this.realFs.readlinkSync(K.fromPortablePath(t)))}async truncatePromise(t,i){return await new Promise((n,s)=>{this.realFs.truncate(K.fromPortablePath(t),i,this.makeCallback(n,s))})}truncateSync(t,i){return this.realFs.truncateSync(K.fromPortablePath(t),i)}async ftruncatePromise(t,i){return await new Promise((n,s)=>{this.realFs.ftruncate(t,i,this.makeCallback(n,s))})}ftruncateSync(t,i){return this.realFs.ftruncateSync(t,i)}watch(t,i,n){return this.realFs.watch(K.fromPortablePath(t),i,n)}watchFile(t,i,n){return this.realFs.watchFile(K.fromPortablePath(t),i,n)}unwatchFile(t,i){return this.realFs.unwatchFile(K.fromPortablePath(t),i)}makeCallback(t,i){return(n,s)=>{n?i(n):t(s)}}};var cK=J("events");function lK(r,e){if(r!==e)throw new Error(`Invalid StatWatcher status: expected '${e}', got '${r}'`)}var yg=class extends cK.EventEmitter{constructor(t,i,{bigint:n=!1}={}){super();this.status="ready";this.changeListeners=new Map;this.startTimeout=null;this.fakeFs=t,this.path=i,this.bigint=n,this.lastStats=this.stat()}static create(t,i,n){let s=new yg(t,i,n);return s.start(),s}start(){lK(this.status,"ready"),this.status="running",this.startTimeout=setTimeout(()=>{this.startTimeout=null,this.fakeFs.existsSync(this.path)||this.emit("change",this.lastStats,this.lastStats)},3)}stop(){lK(this.status,"running"),this.status="stopped",this.startTimeout!==null&&(clearTimeout(this.startTimeout),this.startTimeout=null),this.emit("stop")}stat(){try{return this.fakeFs.statSync(this.path,{bigint:this.bigint})}catch{let i=this.bigint?new Ig:new ma;return YE(i)}}makeInterval(t){let i=setInterval(()=>{let n=this.stat(),s=this.lastStats;uS(n,s)||(this.lastStats=n,this.emit("change",n,s))},t.interval);return t.persistent?i:i.unref()}registerChangeListener(t,i){this.addListener("change",t),this.changeListeners.set(t,this.makeInterval(i))}unregisterChangeListener(t){this.removeListener("change",t);let i=this.changeListeners.get(t);typeof i<"u"&&clearInterval(i),this.changeListeners.delete(t)}unregisterAllChangeListeners(){for(let t of this.changeListeners.keys())this.unregisterChangeListener(t)}hasChangeListeners(){return this.changeListeners.size>0}ref(){for(let t of this.changeListeners.values())t.ref();return this}unref(){for(let t of this.changeListeners.values())t.unref();return this}};var _E=new WeakMap;function $E(r,e,t,i){let n,s,o,a;switch(typeof t){case"function":n=!1,s=!0,o=5007,a=t;break;default:({bigint:n=!1,persistent:s=!0,interval:o=5007}=t),a=i;break}let l=_E.get(r);typeof l>"u"&&_E.set(r,l=new Map);let c=l.get(e);return typeof c>"u"&&(c=yg.create(r,e,{bigint:n}),l.set(e,c)),c.registerChangeListener(a,{persistent:s,interval:o}),c}function Up(r,e,t){let i=_E.get(r);if(typeof i>"u")return;let n=i.get(e);typeof n>"u"||(typeof t>"u"?n.unregisterAllChangeListeners():n.unregisterChangeListener(t),n.hasChangeListeners()||(n.stop(),i.delete(e)))}function Hp(r){let e=_E.get(r);if(!(typeof e>"u"))for(let t of e.keys())Up(r,t)}var Jl="mixed";function Gge(r){if(typeof r=="string"&&String(+r)===r)return+r;if(typeof r=="number"&&Number.isFinite(r))return r<0?Date.now()/1e3:r;if(uK.types.isDate(r))return r.getTime()/1e3;throw new Error("Invalid time")}function ES(){return Buffer.from([80,75,5,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0])}var Wr=class extends vA{constructor(t,i){super();this.lzSource=null;this.listings=new Map;this.entries=new Map;this.fileSources=new Map;this.fds=new Map;this.nextFd=0;this.ready=!1;this.readOnly=!1;this.libzip=i.libzip;let n=i;if(this.level=typeof n.level<"u"?n.level:Jl,t!=null||(t=ES()),typeof t=="string"){let{baseFs:a=new $t}=n;this.baseFs=a,this.path=t}else this.path=null,this.baseFs=null;if(i.stats)this.stats=i.stats;else if(typeof t=="string")try{this.stats=this.baseFs.statSync(t)}catch(a){if(a.code==="ENOENT"&&n.create)this.stats=Lp();else throw a}else this.stats=Lp();let s=this.libzip.malloc(4);try{let a=0;if(typeof t=="string"&&n.create&&(a|=this.libzip.ZIP_CREATE|this.libzip.ZIP_TRUNCATE),i.readOnly&&(a|=this.libzip.ZIP_RDONLY,this.readOnly=!0),typeof t=="string")this.zip=this.libzip.open(K.fromPortablePath(t),a,s);else{let l=this.allocateUnattachedSource(t);try{this.zip=this.libzip.openFromSource(l,a,s),this.lzSource=l}catch(c){throw this.libzip.source.free(l),c}}if(this.zip===0){let l=this.libzip.struct.errorS();throw this.libzip.error.initWithCode(l,this.libzip.getValue(s,"i32")),this.makeLibzipError(l)}}finally{this.libzip.free(s)}this.listings.set(Oe.root,new Set);let o=this.libzip.getNumEntries(this.zip,0);for(let a=0;a<o;++a){let l=this.libzip.getName(this.zip,a,0);if(x.isAbsolute(l))continue;let c=x.resolve(Oe.root,l);this.registerEntry(c,a),l.endsWith("/")&&this.registerListing(c)}if(this.symlinkCount=this.libzip.ext.countSymlinks(this.zip),this.symlinkCount===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));this.ready=!0}makeLibzipError(t){let i=this.libzip.struct.errorCodeZip(t),n=this.libzip.error.strerror(t),s=new zE(n,this.libzip.errors[i]);if(i===this.libzip.errors.ZIP_ER_CHANGED)throw new Error(`Assertion failed: Unexpected libzip error: ${s.message}`);return s}getExtractHint(t){for(let i of this.entries.keys()){let n=this.pathUtils.extname(i);if(t.relevantExtensions.has(n))return!0}return!1}getAllFiles(){return Array.from(this.entries.keys())}getRealPath(){if(!this.path)throw new Error("ZipFS don't have real paths when loaded from a buffer");return this.path}getBufferAndClose(){if(this.prepareClose(),!this.lzSource)throw new Error("ZipFS was not created from a Buffer");if(this.entries.size===0)return this.discardAndClose(),ES();try{if(this.libzip.source.keep(this.lzSource),this.libzip.close(this.zip)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));if(this.libzip.source.open(this.lzSource)===-1)throw this.makeLibzipError(this.libzip.source.error(this.lzSource));if(this.libzip.source.seek(this.lzSource,0,0,this.libzip.SEEK_END)===-1)throw this.makeLibzipError(this.libzip.source.error(this.lzSource));let t=this.libzip.source.tell(this.lzSource);if(t===-1)throw this.makeLibzipError(this.libzip.source.error(this.lzSource));if(this.libzip.source.seek(this.lzSource,0,0,this.libzip.SEEK_SET)===-1)throw this.makeLibzipError(this.libzip.source.error(this.lzSource));let i=this.libzip.malloc(t);if(!i)throw new Error("Couldn't allocate enough memory");try{let n=this.libzip.source.read(this.lzSource,i,t);if(n===-1)throw this.makeLibzipError(this.libzip.source.error(this.lzSource));if(n<t)throw new Error("Incomplete read");if(n>t)throw new Error("Overread");let s=this.libzip.HEAPU8.subarray(i,i+t);return Buffer.from(s)}finally{this.libzip.free(i)}}finally{this.libzip.source.close(this.lzSource),this.libzip.source.free(this.lzSource),this.ready=!1}}prepareClose(){if(!this.ready)throw VE("archive closed, close");Hp(this)}saveAndClose(){if(!this.path||!this.baseFs)throw new Error("ZipFS cannot be saved and must be discarded when loaded from a buffer");if(this.prepareClose(),this.readOnly){this.discardAndClose();return}let t=this.baseFs.existsSync(this.path)||this.stats.mode===Np?void 0:this.stats.mode;if(this.entries.size===0)this.discardAndClose(),this.baseFs.writeFileSync(this.path,ES(),{mode:t});else{if(this.libzip.close(this.zip)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));typeof t<"u"&&this.baseFs.chmodSync(this.path,t)}this.ready=!1}discardAndClose(){this.prepareClose(),this.libzip.discard(this.zip),this.ready=!1}resolve(t){return x.resolve(Oe.root,t)}async openPromise(t,i,n){return this.openSync(t,i,n)}openSync(t,i,n){let s=this.nextFd++;return this.fds.set(s,{cursor:0,p:t}),s}hasOpenFileHandles(){return!!this.fds.size}async opendirPromise(t,i){return this.opendirSync(t,i)}opendirSync(t,i={}){let n=this.resolveFilename(`opendir '${t}'`,t);if(!this.entries.has(n)&&!this.listings.has(n))throw js(`opendir '${t}'`);let s=this.listings.get(n);if(!s)throw Qo(`opendir '${t}'`);let o=[...s],a=this.openSync(n,"r");return ZE(this,n,o,{onClose:()=>{this.closeSync(a)}})}async readPromise(t,i,n,s,o){return this.readSync(t,i,n,s,o)}readSync(t,i,n=0,s=i.byteLength,o=-1){let a=this.fds.get(t);if(typeof a>"u")throw Hr("read");let l=o===-1||o===null?a.cursor:o,c=this.readFileSync(a.p);c.copy(i,n,l,l+s);let u=Math.max(0,Math.min(c.length-l,s));return(o===-1||o===null)&&(a.cursor+=u),u}async writePromise(t,i,n,s,o){return typeof i=="string"?this.writeSync(t,i,o):this.writeSync(t,i,n,s,o)}writeSync(t,i,n,s,o){throw typeof this.fds.get(t)>"u"?Hr("read"):new Error("Unimplemented")}async closePromise(t){return this.closeSync(t)}closeSync(t){if(typeof this.fds.get(t)>"u")throw Hr("read");this.fds.delete(t)}createReadStream(t,{encoding:i}={}){if(t===null)throw new Error("Unimplemented");let n=this.openSync(t,"r"),s=Object.assign(new IS.PassThrough({emitClose:!0,autoDestroy:!0,destroy:(a,l)=>{clearImmediate(o),this.closeSync(n),l(a)}}),{close(){s.destroy()},bytesRead:0,path:t}),o=setImmediate(async()=>{try{let a=await this.readFilePromise(t,i);s.bytesRead=a.length,s.end(a)}catch(a){s.destroy(a)}});return s}createWriteStream(t,{encoding:i}={}){if(this.readOnly)throw ln(`open '${t}'`);if(t===null)throw new Error("Unimplemented");let n=[],s=this.openSync(t,"w"),o=Object.assign(new IS.PassThrough({autoDestroy:!0,emitClose:!0,destroy:(a,l)=>{try{a?l(a):(this.writeFileSync(t,Buffer.concat(n),i),l(null))}catch(c){l(c)}finally{this.closeSync(s)}}}),{bytesWritten:0,path:t,close(){o.destroy()}});return o.on("data",a=>{let l=Buffer.from(a);o.bytesWritten+=l.length,n.push(l)}),o}async realpathPromise(t){return this.realpathSync(t)}realpathSync(t){let i=this.resolveFilename(`lstat '${t}'`,t);if(!this.entries.has(i)&&!this.listings.has(i))throw js(`lstat '${t}'`);return i}async existsPromise(t){return this.existsSync(t)}existsSync(t){if(!this.ready)throw VE(`archive closed, existsSync '${t}'`);if(this.symlinkCount===0){let n=x.resolve(Oe.root,t);return this.entries.has(n)||this.listings.has(n)}let i;try{i=this.resolveFilename(`stat '${t}'`,t,void 0,!1)}catch{return!1}return i===void 0?!1:this.entries.has(i)||this.listings.has(i)}async accessPromise(t,i){return this.accessSync(t,i)}accessSync(t,i=wg.constants.F_OK){let n=this.resolveFilename(`access '${t}'`,t);if(!this.entries.has(n)&&!this.listings.has(n))throw js(`access '${t}'`);if(this.readOnly&&i&wg.constants.W_OK)throw ln(`access '${t}'`)}async statPromise(t,i={bigint:!1}){return i.bigint?this.statSync(t,{bigint:!0}):this.statSync(t)}statSync(t,i={bigint:!1,throwIfNoEntry:!0}){let n=this.resolveFilename(`stat '${t}'`,t,void 0,i.throwIfNoEntry);if(n!==void 0){if(!this.entries.has(n)&&!this.listings.has(n)){if(i.throwIfNoEntry===!1)return;throw js(`stat '${t}'`)}if(t[t.length-1]==="/"&&!this.listings.has(n))throw Qo(`stat '${t}'`);return this.statImpl(`stat '${t}'`,n,i)}}async fstatPromise(t,i){return this.fstatSync(t,i)}fstatSync(t,i){let n=this.fds.get(t);if(typeof n>"u")throw Hr("fstatSync");let{p:s}=n,o=this.resolveFilename(`stat '${s}'`,s);if(!this.entries.has(o)&&!this.listings.has(o))throw js(`stat '${s}'`);if(s[s.length-1]==="/"&&!this.listings.has(o))throw Qo(`stat '${s}'`);return this.statImpl(`fstat '${s}'`,o,i)}async lstatPromise(t,i={bigint:!1}){return i.bigint?this.lstatSync(t,{bigint:!0}):this.lstatSync(t)}lstatSync(t,i={bigint:!1,throwIfNoEntry:!0}){let n=this.resolveFilename(`lstat '${t}'`,t,!1,i.throwIfNoEntry);if(n!==void 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this.libzip.free(i),this.makeLibzipError(this.libzip.getError(this.zip));return s}setFileSource(t,i){let n=Buffer.isBuffer(i)?i:Buffer.from(i),s=x.relative(Oe.root,t),o=this.allocateSource(i);try{let a=this.libzip.file.add(this.zip,s,o,this.libzip.ZIP_FL_OVERWRITE);if(a===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));if(this.level!=="mixed"){let l=this.level===0?this.libzip.ZIP_CM_STORE:this.libzip.ZIP_CM_DEFLATE;if(this.libzip.file.setCompression(this.zip,a,0,l,this.level)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip))}return this.fileSources.set(a,n),a}catch(a){throw this.libzip.source.free(o),a}}isSymbolicLink(t){if(this.symlinkCount===0)return!1;if(this.libzip.file.getExternalAttributes(this.zip,t,0,0,this.libzip.uint08S,this.libzip.uint32S)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));return this.libzip.getValue(this.libzip.uint08S,"i8")>>>0!==this.libzip.ZIP_OPSYS_UNIX?!1:(this.libzip.getValue(this.libzip.uint32S,"i32")>>>16&61440)===40960}getFileSource(t,i={asyncDecompress:!1}){let n=this.fileSources.get(t);if(typeof n<"u")return n;let s=this.libzip.struct.statS();if(this.libzip.statIndex(this.zip,t,0,0,s)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));let a=this.libzip.struct.statCompSize(s),l=this.libzip.struct.statCompMethod(s),c=this.libzip.malloc(a);try{let u=this.libzip.fopenIndex(this.zip,t,0,this.libzip.ZIP_FL_COMPRESSED);if(u===0)throw this.makeLibzipError(this.libzip.getError(this.zip));try{let g=this.libzip.fread(u,c,a,0);if(g===-1)throw this.makeLibzipError(this.libzip.file.getError(u));if(g<a)throw new Error("Incomplete read");if(g>a)throw new Error("Overread");let f=this.libzip.HEAPU8.subarray(c,c+a),h=Buffer.from(f);if(l===0)return this.fileSources.set(t,h),h;if(i.asyncDecompress)return new Promise((p,C)=>{yS.default.inflateRaw(h,(y,B)=>{y?C(y):(this.fileSources.set(t,B),p(B))})});{let p=yS.default.inflateRawSync(h);return this.fileSources.set(t,p),p}}finally{this.libzip.fclose(u)}}finally{this.libzip.free(c)}}async fchmodPromise(t,i){return this.chmodPromise(this.fdToPath(t,"fchmod"),i)}fchmodSync(t,i){return this.chmodSync(this.fdToPath(t,"fchmodSync"),i)}async chmodPromise(t,i){return this.chmodSync(t,i)}chmodSync(t,i){if(this.readOnly)throw ln(`chmod '${t}'`);i&=493;let n=this.resolveFilename(`chmod '${t}'`,t,!1),s=this.entries.get(n);if(typeof s>"u")throw new Error(`Assertion failed: The entry should have been registered (${n})`);let a=this.getUnixMode(s,32768)&-512|i;if(this.libzip.file.setExternalAttributes(this.zip,s,0,0,this.libzip.ZIP_OPSYS_UNIX,a<<16)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip))}async fchownPromise(t,i,n){return this.chownPromise(this.fdToPath(t,"fchown"),i,n)}fchownSync(t,i,n){return 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a=this.resolveFilename(`copyfile '${t}' -> ${i}'`,i),l=this.entries.get(a);if((n&(wg.constants.COPYFILE_EXCL|wg.constants.COPYFILE_FICLONE_FORCE))!==0&&typeof l<"u")throw XE(`copyfile '${t}' -> '${i}'`);return{indexSource:o,resolvedDestP:a,indexDest:l}}async appendFilePromise(t,i,n){if(this.readOnly)throw ln(`open '${t}'`);return typeof n>"u"?n={flag:"a"}:typeof n=="string"?n={flag:"a",encoding:n}:typeof n.flag>"u"&&(n={flag:"a",...n}),this.writeFilePromise(t,i,n)}appendFileSync(t,i,n={}){if(this.readOnly)throw ln(`open '${t}'`);return typeof n>"u"?n={flag:"a"}:typeof n=="string"?n={flag:"a",encoding:n}:typeof n.flag>"u"&&(n={flag:"a",...n}),this.writeFileSync(t,i,n)}fdToPath(t,i){var s;let n=(s=this.fds.get(t))==null?void 0:s.p;if(typeof n>"u")throw Hr(i);return n}async writeFilePromise(t,i,n){let{encoding:s,mode:o,index:a,resolvedP:l}=this.prepareWriteFile(t,n);a!==void 0&&typeof n=="object"&&n.flag&&n.flag.includes("a")&&(i=Buffer.concat([await this.getFileSource(a,{asyncDecompress:!0}),Buffer.from(i)])),s!==null&&(i=i.toString(s));let c=this.setFileSource(l,i);c!==a&&this.registerEntry(l,c),o!==null&&await this.chmodPromise(l,o)}writeFileSync(t,i,n){let{encoding:s,mode:o,index:a,resolvedP:l}=this.prepareWriteFile(t,n);a!==void 0&&typeof n=="object"&&n.flag&&n.flag.includes("a")&&(i=Buffer.concat([this.getFileSource(a),Buffer.from(i)])),s!==null&&(i=i.toString(s));let c=this.setFileSource(l,i);c!==a&&this.registerEntry(l,c),o!==null&&this.chmodSync(l,o)}prepareWriteFile(t,i){if(typeof t=="number"&&(t=this.fdToPath(t,"read")),this.readOnly)throw ln(`open '${t}'`);let n=this.resolveFilename(`open '${t}'`,t);if(this.listings.has(n))throw Kp(`open '${t}'`);let s=null,o=null;typeof i=="string"?s=i:typeof i=="object"&&({encoding:s=null,mode:o=null}=i);let a=this.entries.get(n);return{encoding:s,mode:o,resolvedP:n,index:a}}async unlinkPromise(t){return this.unlinkSync(t)}unlinkSync(t){if(this.readOnly)throw ln(`unlink '${t}'`);let i=this.resolveFilename(`unlink '${t}'`,t);if(this.listings.has(i))throw Kp(`unlink '${t}'`);let n=this.entries.get(i);if(typeof n>"u")throw SA(`unlink '${t}'`);this.deleteEntry(i,n)}async utimesPromise(t,i,n){return this.utimesSync(t,i,n)}utimesSync(t,i,n){if(this.readOnly)throw ln(`utimes '${t}'`);let s=this.resolveFilename(`utimes '${t}'`,t);this.utimesImpl(s,n)}async lutimesPromise(t,i,n){return this.lutimesSync(t,i,n)}lutimesSync(t,i,n){if(this.readOnly)throw ln(`lutimes '${t}'`);let s=this.resolveFilename(`utimes '${t}'`,t,!1);this.utimesImpl(s,n)}utimesImpl(t,i){this.listings.has(t)&&(this.entries.has(t)||this.hydrateDirectory(t));let n=this.entries.get(t);if(n===void 0)throw new Error("Unreachable");if(this.libzip.file.setMtime(this.zip,n,0,Gge(i),0)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip))}async mkdirPromise(t,i){return this.mkdirSync(t,i)}mkdirSync(t,{mode:i=493,recursive:n=!1}={}){if(n)return this.mkdirpSync(t,{chmod:i});if(this.readOnly)throw ln(`mkdir '${t}'`);let s=this.resolveFilename(`mkdir '${t}'`,t);if(this.entries.has(s)||this.listings.has(s))throw XE(`mkdir '${t}'`);this.hydrateDirectory(s),this.chmodSync(s,i)}async rmdirPromise(t,i){return this.rmdirSync(t,i)}rmdirSync(t,{recursive:i=!1}={}){if(this.readOnly)throw ln(`rmdir '${t}'`);if(i){this.removeSync(t);return}let n=this.resolveFilename(`rmdir '${t}'`,t),s=this.listings.get(n);if(!s)throw Qo(`rmdir '${t}'`);if(s.size>0)throw nK(`rmdir '${t}'`);let o=this.entries.get(n);if(typeof o>"u")throw SA(`rmdir '${t}'`);this.deleteEntry(t,o)}hydrateDirectory(t){let i=this.libzip.dir.add(this.zip,x.relative(Oe.root,t));if(i===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));return this.registerListing(t),this.registerEntry(t,i),i}async linkPromise(t,i){return this.linkSync(t,i)}linkSync(t,i){throw sK(`link '${t}' -> '${i}'`)}async symlinkPromise(t,i){return this.symlinkSync(t,i)}symlinkSync(t,i){if(this.readOnly)throw ln(`symlink '${t}' -> '${i}'`);let n=this.resolveFilename(`symlink '${t}' -> '${i}'`,i);if(this.listings.has(n))throw Kp(`symlink '${t}' -> '${i}'`);if(this.entries.has(n))throw XE(`symlink '${t}' -> '${i}'`);let s=this.setFileSource(n,t);if(this.registerEntry(n,s),this.libzip.file.setExternalAttributes(this.zip,s,0,0,this.libzip.ZIP_OPSYS_UNIX,41471<<16)===-1)throw this.makeLibzipError(this.libzip.getError(this.zip));this.symlinkCount+=1}async readFilePromise(t,i){typeof i=="object"&&(i=i?i.encoding:void 0);let n=await this.readFileBuffer(t,{asyncDecompress:!0});return i?n.toString(i):n}readFileSync(t,i){typeof i=="object"&&(i=i?i.encoding:void 0);let n=this.readFileBuffer(t);return i?n.toString(i):n}readFileBuffer(t,i={asyncDecompress:!1}){typeof t=="number"&&(t=this.fdToPath(t,"read"));let n=this.resolveFilename(`open '${t}'`,t);if(!this.entries.has(n)&&!this.listings.has(n))throw js(`open '${t}'`);if(t[t.length-1]==="/"&&!this.listings.has(n))throw Qo(`open '${t}'`);if(this.listings.has(n))throw Kp("read");let s=this.entries.get(n);if(s===void 0)throw new Error("Unreachable");return this.getFileSource(s,i)}async readdirPromise(t,i){return this.readdirSync(t,i)}readdirSync(t,i){let n=this.resolveFilename(`scandir '${t}'`,t);if(!this.entries.has(n)&&!this.listings.has(n))throw js(`scandir '${t}'`);let s=this.listings.get(n);if(!s)throw Qo(`scandir '${t}'`);let o=[...s];return i!=null&&i.withFileTypes?o.map(a=>Object.assign(this.statImpl("lstat",x.join(t,a)),{name:a})):o}async readlinkPromise(t){let i=this.prepareReadlink(t);return(await this.getFileSource(i,{asyncDecompress:!0})).toString()}readlinkSync(t){let i=this.prepareReadlink(t);return this.getFileSource(i).toString()}prepareReadlink(t){let i=this.resolveFilename(`readlink '${t}'`,t,!1);if(!this.entries.has(i)&&!this.listings.has(i))throw js(`readlink '${t}'`);if(t[t.length-1]==="/"&&!this.listings.has(i))throw Qo(`open '${t}'`);if(this.listings.has(i))throw SA(`readlink '${t}'`);let n=this.entries.get(i);if(n===void 0)throw new Error("Unreachable");if(!this.isSymbolicLink(n))throw SA(`readlink '${t}'`);return n}async truncatePromise(t,i=0){let n=this.resolveFilename(`open '${t}'`,t),s=this.entries.get(n);if(typeof s>"u")throw SA(`open '${t}'`);let o=await this.getFileSource(s,{asyncDecompress:!0}),a=Buffer.alloc(i,0);return o.copy(a),await this.writeFilePromise(t,a)}truncateSync(t,i=0){let n=this.resolveFilename(`open '${t}'`,t),s=this.entries.get(n);if(typeof s>"u")throw SA(`open '${t}'`);let o=this.getFileSource(s),a=Buffer.alloc(i,0);return o.copy(a),this.writeFileSync(t,a)}async ftruncatePromise(t,i){return this.truncatePromise(this.fdToPath(t,"ftruncate"),i)}ftruncateSync(t,i){return this.truncateSync(this.fdToPath(t,"ftruncateSync"),i)}watch(t,i,n){let s;switch(typeof i){case"function":case"string":case"undefined":s=!0;break;default:({persistent:s=!0}=i);break}if(!s)return{on:()=>{},close:()=>{}};let o=setInterval(()=>{},24*60*60*1e3);return{on:()=>{},close:()=>{clearInterval(o)}}}watchFile(t,i,n){let s=x.resolve(Oe.root,t);return $E(this,s,i,n)}unwatchFile(t,i){let n=x.resolve(Oe.root,t);return Up(this,n,i)}};var pi=class extends Ea{getExtractHint(e){return this.baseFs.getExtractHint(e)}resolve(e){return this.mapFromBase(this.baseFs.resolve(this.mapToBase(e)))}getRealPath(){return this.mapFromBase(this.baseFs.getRealPath())}async openPromise(e,t,i){return this.baseFs.openPromise(this.mapToBase(e),t,i)}openSync(e,t,i){return this.baseFs.openSync(this.mapToBase(e),t,i)}async opendirPromise(e,t){return Object.assign(await this.baseFs.opendirPromise(this.mapToBase(e),t),{path:e})}opendirSync(e,t){return Object.assign(this.baseFs.opendirSync(this.mapToBase(e),t),{path:e})}async readPromise(e,t,i,n,s){return await this.baseFs.readPromise(e,t,i,n,s)}readSync(e,t,i,n,s){return this.baseFs.readSync(e,t,i,n,s)}async writePromise(e,t,i,n,s){return typeof t=="string"?await this.baseFs.writePromise(e,t,i):await this.baseFs.writePromise(e,t,i,n,s)}writeSync(e,t,i,n,s){return typeof t=="string"?this.baseFs.writeSync(e,t,i):this.baseFs.writeSync(e,t,i,n,s)}async closePromise(e){return this.baseFs.closePromise(e)}closeSync(e){this.baseFs.closeSync(e)}createReadStream(e,t){return this.baseFs.createReadStream(e!==null?this.mapToBase(e):e,t)}createWriteStream(e,t){return this.baseFs.createWriteStream(e!==null?this.mapToBase(e):e,t)}async realpathPromise(e){return this.mapFromBase(await this.baseFs.realpathPromise(this.mapToBase(e)))}realpathSync(e){return this.mapFromBase(this.baseFs.realpathSync(this.mapToBase(e)))}async existsPromise(e){return this.baseFs.existsPromise(this.mapToBase(e))}existsSync(e){return this.baseFs.existsSync(this.mapToBase(e))}accessSync(e,t){return this.baseFs.accessSync(this.mapToBase(e),t)}async accessPromise(e,t){return this.baseFs.accessPromise(this.mapToBase(e),t)}async statPromise(e,t){return this.baseFs.statPromise(this.mapToBase(e),t)}statSync(e,t){return this.baseFs.statSync(this.mapToBase(e),t)}async fstatPromise(e,t){return this.baseFs.fstatPromise(e,t)}fstatSync(e,t){return this.baseFs.fstatSync(e,t)}lstatPromise(e,t){return this.baseFs.lstatPromise(this.mapToBase(e),t)}lstatSync(e,t){return this.baseFs.lstatSync(this.mapToBase(e),t)}async fchmodPromise(e,t){return this.baseFs.fchmodPromise(e,t)}fchmodSync(e,t){return this.baseFs.fchmodSync(e,t)}async chmodPromise(e,t){return this.baseFs.chmodPromise(this.mapToBase(e),t)}chmodSync(e,t){return this.baseFs.chmodSync(this.mapToBase(e),t)}async fchownPromise(e,t,i){return this.baseFs.fchownPromise(e,t,i)}fchownSync(e,t,i){return this.baseFs.fchownSync(e,t,i)}async chownPromise(e,t,i){return this.baseFs.chownPromise(this.mapToBase(e),t,i)}chownSync(e,t,i){return this.baseFs.chownSync(this.mapToBase(e),t,i)}async renamePromise(e,t){return this.baseFs.renamePromise(this.mapToBase(e),this.mapToBase(t))}renameSync(e,t){return this.baseFs.renameSync(this.mapToBase(e),this.mapToBase(t))}async copyFilePromise(e,t,i=0){return this.baseFs.copyFilePromise(this.mapToBase(e),this.mapToBase(t),i)}copyFileSync(e,t,i=0){return this.baseFs.copyFileSync(this.mapToBase(e),this.mapToBase(t),i)}async appendFilePromise(e,t,i){return this.baseFs.appendFilePromise(this.fsMapToBase(e),t,i)}appendFileSync(e,t,i){return this.baseFs.appendFileSync(this.fsMapToBase(e),t,i)}async writeFilePromise(e,t,i){return this.baseFs.writeFilePromise(this.fsMapToBase(e),t,i)}writeFileSync(e,t,i){return this.baseFs.writeFileSync(this.fsMapToBase(e),t,i)}async unlinkPromise(e){return this.baseFs.unlinkPromise(this.mapToBase(e))}unlinkSync(e){return this.baseFs.unlinkSync(this.mapToBase(e))}async utimesPromise(e,t,i){return this.baseFs.utimesPromise(this.mapToBase(e),t,i)}utimesSync(e,t,i){return this.baseFs.utimesSync(this.mapToBase(e),t,i)}async mkdirPromise(e,t){return this.baseFs.mkdirPromise(this.mapToBase(e),t)}mkdirSync(e,t){return this.baseFs.mkdirSync(this.mapToBase(e),t)}async rmdirPromise(e,t){return this.baseFs.rmdirPromise(this.mapToBase(e),t)}rmdirSync(e,t){return this.baseFs.rmdirSync(this.mapToBase(e),t)}async linkPromise(e,t){return this.baseFs.linkPromise(this.mapToBase(e),this.mapToBase(t))}linkSync(e,t){return this.baseFs.linkSync(this.mapToBase(e),this.mapToBase(t))}async symlinkPromise(e,t,i){let n=this.mapToBase(t);if(this.pathUtils.isAbsolute(e))return this.baseFs.symlinkPromise(this.mapToBase(e),n,i);let s=this.mapToBase(this.pathUtils.join(this.pathUtils.dirname(t),e)),o=this.baseFs.pathUtils.relative(this.baseFs.pathUtils.dirname(n),s);return this.baseFs.symlinkPromise(o,n,i)}symlinkSync(e,t,i){let n=this.mapToBase(t);if(this.pathUtils.isAbsolute(e))return this.baseFs.symlinkSync(this.mapToBase(e),n,i);let s=this.mapToBase(this.pathUtils.join(this.pathUtils.dirname(t),e)),o=this.baseFs.pathUtils.relative(this.baseFs.pathUtils.dirname(n),s);return this.baseFs.symlinkSync(o,n,i)}async readFilePromise(e,t){return t==="utf8"?this.baseFs.readFilePromise(this.fsMapToBase(e),t):this.baseFs.readFilePromise(this.fsMapToBase(e),t)}readFileSync(e,t){return t==="utf8"?this.baseFs.readFileSync(this.fsMapToBase(e),t):this.baseFs.readFileSync(this.fsMapToBase(e),t)}async readdirPromise(e,t){return this.baseFs.readdirPromise(this.mapToBase(e),t)}readdirSync(e,t){return this.baseFs.readdirSync(this.mapToBase(e),t)}async readlinkPromise(e){return this.mapFromBase(await this.baseFs.readlinkPromise(this.mapToBase(e)))}readlinkSync(e){return this.mapFromBase(this.baseFs.readlinkSync(this.mapToBase(e)))}async truncatePromise(e,t){return this.baseFs.truncatePromise(this.mapToBase(e),t)}truncateSync(e,t){return this.baseFs.truncateSync(this.mapToBase(e),t)}async ftruncatePromise(e,t){return this.baseFs.ftruncatePromise(e,t)}ftruncateSync(e,t){return this.baseFs.ftruncateSync(e,t)}watch(e,t,i){return this.baseFs.watch(this.mapToBase(e),t,i)}watchFile(e,t,i){return this.baseFs.watchFile(this.mapToBase(e),t,i)}unwatchFile(e,t){return this.baseFs.unwatchFile(this.mapToBase(e),t)}fsMapToBase(e){return typeof e=="number"?e:this.mapToBase(e)}};var bo=class extends pi{constructor(t,{baseFs:i,pathUtils:n}){super(n);this.target=t,this.baseFs=i}getRealPath(){return this.target}getBaseFs(){return this.baseFs}mapFromBase(t){return t}mapToBase(t){return t}};var qt=class extends pi{constructor(t,{baseFs:i=new $t}={}){super(x);this.target=this.pathUtils.normalize(t),this.baseFs=i}getRealPath(){return this.pathUtils.resolve(this.baseFs.getRealPath(),this.target)}resolve(t){return this.pathUtils.isAbsolute(t)?x.normalize(t):this.baseFs.resolve(x.join(this.target,t))}mapFromBase(t){return t}mapToBase(t){return this.pathUtils.isAbsolute(t)?t:this.pathUtils.join(this.target,t)}};var gK=Oe.root,So=class extends pi{constructor(t,{baseFs:i=new $t}={}){super(x);this.target=this.pathUtils.resolve(Oe.root,t),this.baseFs=i}getRealPath(){return this.pathUtils.resolve(this.baseFs.getRealPath(),this.pathUtils.relative(Oe.root,this.target))}getTarget(){return this.target}getBaseFs(){return this.baseFs}mapToBase(t){let i=this.pathUtils.normalize(t);if(this.pathUtils.isAbsolute(t))return this.pathUtils.resolve(this.target,this.pathUtils.relative(gK,t));if(i.match(/^\.\.\/?/))throw new Error(`Resolving this path (${t}) would escape the jail`);return this.pathUtils.resolve(this.target,t)}mapFromBase(t){return this.pathUtils.resolve(gK,this.pathUtils.relative(this.target,t))}};var Bg=class extends pi{constructor(t,i){super(i);this.instance=null;this.factory=t}get baseFs(){return this.instance||(this.instance=this.factory()),this.instance}set baseFs(t){this.instance=t}mapFromBase(t){return t}mapToBase(t){return t}};var Ze=()=>Object.assign(new Error("ENOSYS: unsupported filesystem access"),{code:"ENOSYS"}),wS=class extends Ea{constructor(){super(x)}getExtractHint(){throw Ze()}getRealPath(){throw Ze()}resolve(){throw Ze()}async openPromise(){throw Ze()}openSync(){throw Ze()}async opendirPromise(){throw Ze()}opendirSync(){throw Ze()}async readPromise(){throw Ze()}readSync(){throw Ze()}async writePromise(){throw Ze()}writeSync(){throw Ze()}async closePromise(){throw Ze()}closeSync(){throw Ze()}createWriteStream(){throw Ze()}createReadStream(){throw Ze()}async realpathPromise(){throw Ze()}realpathSync(){throw Ze()}async readdirPromise(){throw Ze()}readdirSync(){throw Ze()}async existsPromise(e){throw Ze()}existsSync(e){throw Ze()}async accessPromise(){throw Ze()}accessSync(){throw Ze()}async statPromise(){throw Ze()}statSync(){throw Ze()}async fstatPromise(e){throw Ze()}fstatSync(e){throw Ze()}async lstatPromise(e){throw Ze()}lstatSync(e){throw Ze()}async fchmodPromise(){throw Ze()}fchmodSync(){throw Ze()}async chmodPromise(){throw Ze()}chmodSync(){throw Ze()}async fchownPromise(){throw Ze()}fchownSync(){throw Ze()}async chownPromise(){throw Ze()}chownSync(){throw Ze()}async mkdirPromise(){throw Ze()}mkdirSync(){throw Ze()}async rmdirPromise(){throw Ze()}rmdirSync(){throw Ze()}async linkPromise(){throw Ze()}linkSync(){throw Ze()}async symlinkPromise(){throw Ze()}symlinkSync(){throw Ze()}async renamePromise(){throw Ze()}renameSync(){throw Ze()}async copyFilePromise(){throw Ze()}copyFileSync(){throw Ze()}async appendFilePromise(){throw Ze()}appendFileSync(){throw Ze()}async writeFilePromise(){throw Ze()}writeFileSync(){throw Ze()}async unlinkPromise(){throw Ze()}unlinkSync(){throw Ze()}async utimesPromise(){throw Ze()}utimesSync(){throw Ze()}async readFilePromise(){throw Ze()}readFileSync(){throw Ze()}async readlinkPromise(){throw Ze()}readlinkSync(){throw Ze()}async truncatePromise(){throw Ze()}truncateSync(){throw Ze()}async ftruncatePromise(e,t){throw Ze()}ftruncateSync(e,t){throw Ze()}watch(){throw Ze()}watchFile(){throw Ze()}unwatchFile(){throw Ze()}},Gp=wS;Gp.instance=new wS;var Qg=class extends pi{constructor(t){super(K);this.baseFs=t}mapFromBase(t){return K.fromPortablePath(t)}mapToBase(t){return K.toPortablePath(t)}};var Yge=/^[0-9]+$/,BS=/^(\/(?:[^/]+\/)*?(?:\$\$virtual|__virtual__))((?:\/((?:[^/]+-)?[a-f0-9]+)(?:\/([^/]+))?)?((?:\/.*)?))$/,jge=/^([^/]+-)?[a-f0-9]+$/,Br=class extends pi{constructor({baseFs:t=new $t}={}){super(x);this.baseFs=t}static makeVirtualPath(t,i,n){if(x.basename(t)!=="__virtual__")throw new Error('Assertion failed: Virtual folders must be named "__virtual__"');if(!x.basename(i).match(jge))throw new Error("Assertion failed: Virtual components must be ended by an hexadecimal hash");let o=x.relative(x.dirname(t),n).split("/"),a=0;for(;a<o.length&&o[a]==="..";)a+=1;let l=o.slice(a);return x.join(t,i,String(a),...l)}static resolveVirtual(t){let i=t.match(BS);if(!i||!i[3]&&i[5])return t;let n=x.dirname(i[1]);if(!i[3]||!i[4])return n;if(!Yge.test(i[4]))return t;let o=Number(i[4]),a="../".repeat(o),l=i[5]||".";return Br.resolveVirtual(x.join(n,a,l))}getExtractHint(t){return this.baseFs.getExtractHint(t)}getRealPath(){return this.baseFs.getRealPath()}realpathSync(t){let i=t.match(BS);if(!i)return this.baseFs.realpathSync(t);if(!i[5])return t;let n=this.baseFs.realpathSync(this.mapToBase(t));return Br.makeVirtualPath(i[1],i[3],n)}async realpathPromise(t){let i=t.match(BS);if(!i)return await this.baseFs.realpathPromise(t);if(!i[5])return t;let n=await this.baseFs.realpathPromise(this.mapToBase(t));return Br.makeVirtualPath(i[1],i[3],n)}mapToBase(t){if(t==="")return t;if(this.pathUtils.isAbsolute(t))return Br.resolveVirtual(t);let i=Br.resolveVirtual(this.baseFs.resolve(Oe.dot)),n=Br.resolveVirtual(this.baseFs.resolve(t));return x.relative(i,n)||Oe.dot}mapFromBase(t){return t}};var Yp=J("fs");var cn=4278190080,Wi=704643072,fK=(r,e)=>{let t=r.indexOf(e);if(t<=0)return null;let i=t;for(;t>=0&&(i=t+e.length,r[i]!==x.sep);){if(r[t-1]===x.sep)return null;t=r.indexOf(e,i)}return r.length>i&&r[i]!==x.sep?null:r.slice(0,i)},On=class extends vA{constructor({libzip:t,baseFs:i=new $t,filter:n=null,maxOpenFiles:s=1/0,readOnlyArchives:o=!1,useCache:a=!0,maxAge:l=5e3,fileExtensions:c=null}){super();this.fdMap=new Map;this.nextFd=3;this.isZip=new Set;this.notZip=new Set;this.realPaths=new Map;this.limitOpenFilesTimeout=null;this.libzipFactory=typeof t!="function"?()=>t:t,this.baseFs=i,this.zipInstances=a?new Map:null,this.filter=n,this.maxOpenFiles=s,this.readOnlyArchives=o,this.maxAge=l,this.fileExtensions=c}static async openPromise(t,i){let n=new On(i);try{return await t(n)}finally{n.saveAndClose()}}get libzip(){return typeof this.libzipInstance>"u"&&(this.libzipInstance=this.libzipFactory()),this.libzipInstance}getExtractHint(t){return this.baseFs.getExtractHint(t)}getRealPath(){return this.baseFs.getRealPath()}saveAndClose(){if(Hp(this),this.zipInstances)for(let[t,{zipFs:i}]of this.zipInstances.entries())i.saveAndClose(),this.zipInstances.delete(t)}discardAndClose(){if(Hp(this),this.zipInstances)for(let[t,{zipFs:i}]of this.zipInstances.entries())i.discardAndClose(),this.zipInstances.delete(t)}resolve(t){return this.baseFs.resolve(t)}remapFd(t,i){let n=this.nextFd++|Wi;return this.fdMap.set(n,[t,i]),n}async openPromise(t,i,n){return await this.makeCallPromise(t,async()=>await this.baseFs.openPromise(t,i,n),async(s,{subPath:o})=>this.remapFd(s,await s.openPromise(o,i,n)))}openSync(t,i,n){return this.makeCallSync(t,()=>this.baseFs.openSync(t,i,n),(s,{subPath:o})=>this.remapFd(s,s.openSync(o,i,n)))}async opendirPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.opendirPromise(t,i),async(n,{subPath:s})=>await n.opendirPromise(s,i),{requireSubpath:!1})}opendirSync(t,i){return this.makeCallSync(t,()=>this.baseFs.opendirSync(t,i),(n,{subPath:s})=>n.opendirSync(s,i),{requireSubpath:!1})}async readPromise(t,i,n,s,o){if((t&cn)!==Wi)return await this.baseFs.readPromise(t,i,n,s,o);let a=this.fdMap.get(t);if(typeof a>"u")throw Hr("read");let[l,c]=a;return await l.readPromise(c,i,n,s,o)}readSync(t,i,n,s,o){if((t&cn)!==Wi)return this.baseFs.readSync(t,i,n,s,o);let a=this.fdMap.get(t);if(typeof a>"u")throw Hr("readSync");let[l,c]=a;return l.readSync(c,i,n,s,o)}async writePromise(t,i,n,s,o){if((t&cn)!==Wi)return typeof i=="string"?await this.baseFs.writePromise(t,i,n):await this.baseFs.writePromise(t,i,n,s,o);let a=this.fdMap.get(t);if(typeof a>"u")throw Hr("write");let[l,c]=a;return typeof i=="string"?await l.writePromise(c,i,n):await l.writePromise(c,i,n,s,o)}writeSync(t,i,n,s,o){if((t&cn)!==Wi)return typeof i=="string"?this.baseFs.writeSync(t,i,n):this.baseFs.writeSync(t,i,n,s,o);let a=this.fdMap.get(t);if(typeof a>"u")throw Hr("writeSync");let[l,c]=a;return typeof i=="string"?l.writeSync(c,i,n):l.writeSync(c,i,n,s,o)}async closePromise(t){if((t&cn)!==Wi)return await this.baseFs.closePromise(t);let i=this.fdMap.get(t);if(typeof i>"u")throw Hr("close");this.fdMap.delete(t);let[n,s]=i;return await n.closePromise(s)}closeSync(t){if((t&cn)!==Wi)return this.baseFs.closeSync(t);let i=this.fdMap.get(t);if(typeof i>"u")throw Hr("closeSync");this.fdMap.delete(t);let[n,s]=i;return n.closeSync(s)}createReadStream(t,i){return t===null?this.baseFs.createReadStream(t,i):this.makeCallSync(t,()=>this.baseFs.createReadStream(t,i),(n,{archivePath:s,subPath:o})=>{let a=n.createReadStream(o,i);return a.path=K.fromPortablePath(this.pathUtils.join(s,o)),a})}createWriteStream(t,i){return t===null?this.baseFs.createWriteStream(t,i):this.makeCallSync(t,()=>this.baseFs.createWriteStream(t,i),(n,{subPath:s})=>n.createWriteStream(s,i))}async realpathPromise(t){return await this.makeCallPromise(t,async()=>await this.baseFs.realpathPromise(t),async(i,{archivePath:n,subPath:s})=>{let o=this.realPaths.get(n);return typeof o>"u"&&(o=await this.baseFs.realpathPromise(n),this.realPaths.set(n,o)),this.pathUtils.join(o,this.pathUtils.relative(Oe.root,await i.realpathPromise(s)))})}realpathSync(t){return this.makeCallSync(t,()=>this.baseFs.realpathSync(t),(i,{archivePath:n,subPath:s})=>{let o=this.realPaths.get(n);return typeof o>"u"&&(o=this.baseFs.realpathSync(n),this.realPaths.set(n,o)),this.pathUtils.join(o,this.pathUtils.relative(Oe.root,i.realpathSync(s)))})}async existsPromise(t){return await this.makeCallPromise(t,async()=>await this.baseFs.existsPromise(t),async(i,{subPath:n})=>await i.existsPromise(n))}existsSync(t){return this.makeCallSync(t,()=>this.baseFs.existsSync(t),(i,{subPath:n})=>i.existsSync(n))}async accessPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.accessPromise(t,i),async(n,{subPath:s})=>await n.accessPromise(s,i))}accessSync(t,i){return this.makeCallSync(t,()=>this.baseFs.accessSync(t,i),(n,{subPath:s})=>n.accessSync(s,i))}async statPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.statPromise(t,i),async(n,{subPath:s})=>await n.statPromise(s,i))}statSync(t,i){return this.makeCallSync(t,()=>this.baseFs.statSync(t,i),(n,{subPath:s})=>n.statSync(s,i))}async fstatPromise(t,i){if((t&cn)!==Wi)return this.baseFs.fstatPromise(t,i);let n=this.fdMap.get(t);if(typeof n>"u")throw Hr("fstat");let[s,o]=n;return s.fstatPromise(o,i)}fstatSync(t,i){if((t&cn)!==Wi)return this.baseFs.fstatSync(t,i);let n=this.fdMap.get(t);if(typeof n>"u")throw Hr("fstatSync");let[s,o]=n;return s.fstatSync(o,i)}async lstatPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.lstatPromise(t,i),async(n,{subPath:s})=>await n.lstatPromise(s,i))}lstatSync(t,i){return this.makeCallSync(t,()=>this.baseFs.lstatSync(t,i),(n,{subPath:s})=>n.lstatSync(s,i))}async fchmodPromise(t,i){if((t&cn)!==Wi)return this.baseFs.fchmodPromise(t,i);let n=this.fdMap.get(t);if(typeof n>"u")throw Hr("fchmod");let[s,o]=n;return s.fchmodPromise(o,i)}fchmodSync(t,i){if((t&cn)!==Wi)return this.baseFs.fchmodSync(t,i);let n=this.fdMap.get(t);if(typeof n>"u")throw Hr("fchmodSync");let[s,o]=n;return s.fchmodSync(o,i)}async chmodPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.chmodPromise(t,i),async(n,{subPath:s})=>await n.chmodPromise(s,i))}chmodSync(t,i){return this.makeCallSync(t,()=>this.baseFs.chmodSync(t,i),(n,{subPath:s})=>n.chmodSync(s,i))}async fchownPromise(t,i,n){if((t&cn)!==Wi)return this.baseFs.fchownPromise(t,i,n);let s=this.fdMap.get(t);if(typeof s>"u")throw Hr("fchown");let[o,a]=s;return o.fchownPromise(a,i,n)}fchownSync(t,i,n){if((t&cn)!==Wi)return this.baseFs.fchownSync(t,i,n);let s=this.fdMap.get(t);if(typeof s>"u")throw Hr("fchownSync");let[o,a]=s;return o.fchownSync(a,i,n)}async chownPromise(t,i,n){return await this.makeCallPromise(t,async()=>await this.baseFs.chownPromise(t,i,n),async(s,{subPath:o})=>await s.chownPromise(o,i,n))}chownSync(t,i,n){return this.makeCallSync(t,()=>this.baseFs.chownSync(t,i,n),(s,{subPath:o})=>s.chownSync(o,i,n))}async renamePromise(t,i){return await this.makeCallPromise(t,async()=>await this.makeCallPromise(i,async()=>await this.baseFs.renamePromise(t,i),async()=>{throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"})}),async(n,{subPath:s})=>await this.makeCallPromise(i,async()=>{throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"})},async(o,{subPath:a})=>{if(n!==o)throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"});return await n.renamePromise(s,a)}))}renameSync(t,i){return this.makeCallSync(t,()=>this.makeCallSync(i,()=>this.baseFs.renameSync(t,i),()=>{throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"})}),(n,{subPath:s})=>this.makeCallSync(i,()=>{throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"})},(o,{subPath:a})=>{if(n!==o)throw Object.assign(new Error("EEXDEV: cross-device link not permitted"),{code:"EEXDEV"});return n.renameSync(s,a)}))}async copyFilePromise(t,i,n=0){let s=async(o,a,l,c)=>{if((n&Yp.constants.COPYFILE_FICLONE_FORCE)!==0)throw Object.assign(new Error(`EXDEV: cross-device clone not permitted, copyfile '${a}' -> ${c}'`),{code:"EXDEV"});if(n&Yp.constants.COPYFILE_EXCL&&await this.existsPromise(a))throw Object.assign(new Error(`EEXIST: file already exists, copyfile '${a}' -> '${c}'`),{code:"EEXIST"});let u;try{u=await o.readFilePromise(a)}catch{throw Object.assign(new Error(`EINVAL: invalid argument, copyfile '${a}' -> '${c}'`),{code:"EINVAL"})}await l.writeFilePromise(c,u)};return await this.makeCallPromise(t,async()=>await this.makeCallPromise(i,async()=>await this.baseFs.copyFilePromise(t,i,n),async(o,{subPath:a})=>await s(this.baseFs,t,o,a)),async(o,{subPath:a})=>await this.makeCallPromise(i,async()=>await s(o,a,this.baseFs,i),async(l,{subPath:c})=>o!==l?await s(o,a,l,c):await o.copyFilePromise(a,c,n)))}copyFileSync(t,i,n=0){let s=(o,a,l,c)=>{if((n&Yp.constants.COPYFILE_FICLONE_FORCE)!==0)throw Object.assign(new Error(`EXDEV: cross-device clone not permitted, copyfile '${a}' -> ${c}'`),{code:"EXDEV"});if(n&Yp.constants.COPYFILE_EXCL&&this.existsSync(a))throw Object.assign(new Error(`EEXIST: file already exists, copyfile '${a}' -> '${c}'`),{code:"EEXIST"});let u;try{u=o.readFileSync(a)}catch{throw Object.assign(new Error(`EINVAL: invalid argument, copyfile '${a}' -> '${c}'`),{code:"EINVAL"})}l.writeFileSync(c,u)};return this.makeCallSync(t,()=>this.makeCallSync(i,()=>this.baseFs.copyFileSync(t,i,n),(o,{subPath:a})=>s(this.baseFs,t,o,a)),(o,{subPath:a})=>this.makeCallSync(i,()=>s(o,a,this.baseFs,i),(l,{subPath:c})=>o!==l?s(o,a,l,c):o.copyFileSync(a,c,n)))}async appendFilePromise(t,i,n){return await this.makeCallPromise(t,async()=>await this.baseFs.appendFilePromise(t,i,n),async(s,{subPath:o})=>await s.appendFilePromise(o,i,n))}appendFileSync(t,i,n){return this.makeCallSync(t,()=>this.baseFs.appendFileSync(t,i,n),(s,{subPath:o})=>s.appendFileSync(o,i,n))}async writeFilePromise(t,i,n){return await this.makeCallPromise(t,async()=>await this.baseFs.writeFilePromise(t,i,n),async(s,{subPath:o})=>await s.writeFilePromise(o,i,n))}writeFileSync(t,i,n){return this.makeCallSync(t,()=>this.baseFs.writeFileSync(t,i,n),(s,{subPath:o})=>s.writeFileSync(o,i,n))}async unlinkPromise(t){return await this.makeCallPromise(t,async()=>await this.baseFs.unlinkPromise(t),async(i,{subPath:n})=>await i.unlinkPromise(n))}unlinkSync(t){return this.makeCallSync(t,()=>this.baseFs.unlinkSync(t),(i,{subPath:n})=>i.unlinkSync(n))}async utimesPromise(t,i,n){return await this.makeCallPromise(t,async()=>await this.baseFs.utimesPromise(t,i,n),async(s,{subPath:o})=>await s.utimesPromise(o,i,n))}utimesSync(t,i,n){return this.makeCallSync(t,()=>this.baseFs.utimesSync(t,i,n),(s,{subPath:o})=>s.utimesSync(o,i,n))}async mkdirPromise(t,i){return await this.makeCallPromise(t,async()=>await this.baseFs.mkdirPromise(t,i),async(n,{subPath:s})=>await 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+`);let h=await l7(r),p;h!==null?(c.write(`Using ${h.packageManager} for bootstrap. Reason: ${h.reason}
+
+`),p=h.packageManager):(c.write(`No package manager configuration detected; defaulting to Yarn
+
+`),p="Yarn");let C=p==="Yarn"&&!(h!=null&&h.packageManagerField);await M.mktempPromise(async y=>{let B=await kC({binFolder:y,ignoreCorepack:C}),D=new Map([["Yarn Classic",async()=>{let H=n!==null?["workspace",n]:[],j=x.join(r,xt.manifest),$=await M.readFilePromise(j),V=await Wo(process.execPath,[process.argv[1],"set","version","classic","--only-if-needed"],{cwd:r,env:B,stdin:l,stdout:c,stderr:u,end:1});if(V.code!==0)return V.code;await M.writeFilePromise(j,$),await M.appendFilePromise(x.join(r,".npmignore"),`/.yarn
+`),c.write(`
+`),delete B.NODE_ENV;let W=await Wo("yarn",["install"],{cwd:r,env:B,stdin:l,stdout:c,stderr:u,end:1});if(W.code!==0)return W.code;c.write(`
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+
+${[g,f,h].join(`
+`)}`)}async setupResolutions(){var i;this.storedResolutions=new Map,this.storedDescriptors=new Map,this.storedPackages=new Map,this.lockFileChecksum=null;let e=x.join(this.cwd,this.configuration.get("lockfileFilename")),t=this.configuration.get("defaultLanguageName");if(M.existsSync(e)){let n=await M.readFilePromise(e,"utf8");this.lockFileChecksum=v$(n);let s=yi(n);if(s.__metadata){let o=s.__metadata.version,a=s.__metadata.cacheKey;this.lockfileNeedsRefresh=o<b$;for(let l of Object.keys(s)){if(l==="__metadata")continue;let c=s[l];if(typeof c.resolution>"u")throw new Error(`Assertion failed: Expected the lockfile entry to have a resolution field (${l})`);let u=Sc(c.resolution,!0),g=new ot;g.load(c,{yamlCompatibilityMode:!0});let f=g.version,h=g.languageName||t,p=c.linkType.toUpperCase(),C=(i=c.conditions)!=null?i:null,y=g.dependencies,B=g.peerDependencies,v=g.dependenciesMeta,D=g.peerDependenciesMeta,L=g.bin;if(c.checksum!=null){let j=typeof a<"u"&&!c.checksum.includes("/")?`${a}/${c.checksum}`:c.checksum;this.storedChecksums.set(u.locatorHash,j)}let H={...u,version:f,languageName:h,linkType:p,conditions:C,dependencies:y,peerDependencies:B,dependenciesMeta:v,peerDependenciesMeta:D,bin:L};this.originalPackages.set(H.locatorHash,H);for(let j of l.split(TMe)){let $=JA(j);this.storedDescriptors.set($.descriptorHash,$),this.storedResolutions.set($.descriptorHash,u.locatorHash)}}}}}async setupWorkspaces(){this.workspaces=[],this.workspacesByCwd=new Map,this.workspacesByIdent=new Map;let e=[this.cwd];for(;e.length>0;){let t=e;e=[];for(let i of t){if(this.workspacesByCwd.has(i))continue;let n=await this.addWorkspace(i),s=this.storedPackages.get(n.anchoredLocator.locatorHash);s&&(n.dependencies=s.dependencies);for(let o of n.workspacesCwds)e.push(o)}}}async addWorkspace(e){let t=new wh(e,{project:this});await t.setup();let i=this.workspacesByIdent.get(t.locator.identHash);if(typeof i<"u")throw new Error(`Duplicate workspace name ${Ai(this.configuration,t.locator)}: ${K.fromPortablePath(e)} conflicts with ${K.fromPortablePath(i.cwd)}`);return this.workspaces.push(t),this.workspacesByCwd.set(e,t),this.workspacesByIdent.set(t.locator.identHash,t),t}get topLevelWorkspace(){return this.getWorkspaceByCwd(this.cwd)}tryWorkspaceByCwd(e){x.isAbsolute(e)||(e=x.resolve(this.cwd,e)),e=x.normalize(e).replace(/\/+$/,"");let t=this.workspacesByCwd.get(e);return t||null}getWorkspaceByCwd(e){let t=this.tryWorkspaceByCwd(e);if(!t)throw new Error(`Workspace not found (${e})`);return t}tryWorkspaceByFilePath(e){let t=null;for(let i of this.workspaces)x.relative(i.cwd,e).startsWith("../")||t&&t.cwd.length>=i.cwd.length||(t=i);return t||null}getWorkspaceByFilePath(e){let t=this.tryWorkspaceByFilePath(e);if(!t)throw new Error(`Workspace not found (${e})`);return t}tryWorkspaceByIdent(e){let t=this.workspacesByIdent.get(e.identHash);return typeof t>"u"?null:t}getWorkspaceByIdent(e){let t=this.tryWorkspaceByIdent(e);if(!t)throw new Error(`Workspace not found (${Ai(this.configuration,e)})`);return t}tryWorkspaceByDescriptor(e){let t=this.tryWorkspaceByIdent(e);return t===null||(qA(e)&&(e=tC(e)),!t.accepts(e.range))?null:t}getWorkspaceByDescriptor(e){let t=this.tryWorkspaceByDescriptor(e);if(t===null)throw new Error(`Workspace not found (${tr(this.configuration,e)})`);return t}tryWorkspaceByLocator(e){let t=this.tryWorkspaceByIdent(e);return t===null||(jo(e)&&(e=rC(e)),t.locator.locatorHash!==e.locatorHash&&t.anchoredLocator.locatorHash!==e.locatorHash)?null:t}getWorkspaceByLocator(e){let t=this.tryWorkspaceByLocator(e);if(!t)throw new Error(`Workspace not found (${mt(this.configuration,e)})`);return t}refreshWorkspaceDependencies(){for(let e of this.workspaces){let t=this.storedPackages.get(e.anchoredLocator.locatorHash);if(!t)throw new Error(`Assertion failed: Expected workspace ${aC(this.configuration,e)} (${$e(this.configuration,x.join(e.cwd,xt.manifest),Ue.PATH)}) to have been resolved. Run "yarn install" to update the lockfile`);e.dependencies=new Map(t.dependencies)}}forgetResolution(e){let t=n=>{this.storedResolutions.delete(n),this.storedDescriptors.delete(n)},i=n=>{this.originalPackages.delete(n),this.storedPackages.delete(n),this.accessibleLocators.delete(n)};if("descriptorHash"in e){let n=this.storedResolutions.get(e.descriptorHash);t(e.descriptorHash);let s=new Set(this.storedResolutions.values());typeof n<"u"&&!s.has(n)&&i(n)}if("locatorHash"in e){i(e.locatorHash);for(let[n,s]of this.storedResolutions)s===e.locatorHash&&t(n)}}forgetTransientResolutions(){let e=this.configuration.makeResolver();for(let t of this.originalPackages.values()){let i;try{i=e.shouldPersistResolution(t,{project:this,resolver:e})}catch{i=!1}i||this.forgetResolution(t)}}forgetVirtualResolutions(){for(let e of this.storedPackages.values())for(let[t,i]of e.dependencies)qA(i)&&e.dependencies.set(t,tC(i))}getDependencyMeta(e,t){let i={},s=this.topLevelWorkspace.manifest.dependenciesMeta.get(Ot(e));if(!s)return i;let o=s.get(null);if(o&&Object.assign(i,o),t===null||!P$.default.valid(t))return i;for(let[a,l]of s)a!==null&&a===t&&Object.assign(i,l);return i}async findLocatorForLocation(e,{strict:t=!1}={}){let i=new ti,n=this.configuration.getLinkers(),s={project:this,report:i};for(let o of n){let a=await o.findPackageLocator(e,s);if(a){if(t&&(await o.findPackageLocation(a,s)).replace(S$,"")!==e.replace(S$,""))continue;return a}}return null}async resolveEverything(e){if(!this.workspacesByCwd||!this.workspacesByIdent)throw new Error("Workspaces must have been setup before calling this function");this.forgetVirtualResolutions(),e.lockfileOnly||this.forgetTransientResolutions();let t=e.resolver||this.configuration.makeResolver(),i=new Y0(t);await i.setup(this,{report:e.report});let n=e.lockfileOnly?[new q0(t)]:[i,t],s=new xf([new j0(t),...n]),o=this.configuration.makeFetcher(),a=e.lockfileOnly?{project:this,report:e.report,resolver:s}:{project:this,report:e.report,resolver:s,fetchOptions:{project:this,cache:e.cache,checksums:this.storedChecksums,report:e.report,fetcher:o,cacheOptions:{mirrorWriteOnly:!0}}},l=new Map,c=new Map,u=new Map,g=new Map,f=new Map,h=new Map,p=this.topLevelWorkspace.anchoredLocator,C=new Set,y=[],B=$D(),v=this.configuration.getSupportedArchitectures();await e.report.startProgressPromise(vi.progressViaTitle(),async W=>{let _=async O=>{let F=await ff(async()=>await s.resolve(O,a),ke=>`${mt(this.configuration,O)}: ${ke}`);if(!nC(O,F))throw new Error(`Assertion failed: The locator cannot be changed by the resolver (went from ${mt(this.configuration,O)} to ${mt(this.configuration,F)})`);g.set(F.locatorHash,F);let ue=this.configuration.normalizePackage(F);for(let[ke,Fe]of ue.dependencies){let Ne=await this.configuration.reduceHook(le=>le.reduceDependency,Fe,this,ue,Fe,{resolver:s,resolveOptions:a});if(!iC(Fe,Ne))throw new Error("Assertion failed: The descriptor ident cannot be changed through aliases");let oe=s.bindDescriptor(Ne,O,a);ue.dependencies.set(ke,oe)}let he=to([...ue.dependencies.values()].map(ke=>re(ke)));return y.push(he),he.catch(()=>{}),c.set(ue.locatorHash,ue),ue},A=async O=>{let F=f.get(O.locatorHash);if(typeof F<"u")return F;let ue=Promise.resolve().then(()=>_(O));return f.set(O.locatorHash,ue),ue},ae=async(O,F)=>{let ue=await re(F);return l.set(O.descriptorHash,O),u.set(O.descriptorHash,ue.locatorHash),ue},ge=async O=>{W.setTitle(tr(this.configuration,O));let F=this.resolutionAliases.get(O.descriptorHash);if(typeof F<"u")return ae(O,this.storedDescriptors.get(F));let ue=s.getResolutionDependencies(O,a),he=new Map(await to(ue.map(async Ne=>{let oe=s.bindDescriptor(Ne,p,a),le=await re(oe);return C.add(le.locatorHash),[Ne.descriptorHash,le]}))),Fe=(await ff(async()=>await s.getCandidates(O,he,a),Ne=>`${tr(this.configuration,O)}: ${Ne}`))[0];if(typeof Fe>"u")throw new Error(`${tr(this.configuration,O)}: No candidates found`);return l.set(O.descriptorHash,O),u.set(O.descriptorHash,Fe.locatorHash),A(Fe)},re=O=>{let F=h.get(O.descriptorHash);if(typeof F<"u")return F;l.set(O.descriptorHash,O);let ue=Promise.resolve().then(()=>ge(O));return h.set(O.descriptorHash,ue),ue};for(let O of this.workspaces){let F=O.anchoredDescriptor;y.push(re(F))}for(;y.length>0;){let O=[...y];y.length=0,await to(O)}});let D=new Set(this.resolutionAliases.values()),L=new Set(c.keys()),H=new Set,j=new Map;UMe({project:this,report:e.report,accessibleLocators:H,volatileDescriptors:D,optionalBuilds:L,peerRequirements:j,allDescriptors:l,allResolutions:u,allPackages:c});for(let W of C)L.delete(W);for(let W of D)l.delete(W),u.delete(W);let $=new Set,V=new Set;for(let W of c.values())W.conditions!=null&&(!L.has(W.locatorHash)||(vw(W,v)||(vw(W,B)&&e.report.reportWarningOnce(77,`${mt(this.configuration,W)}: Your current architecture (${process.platform}-${process.arch}) is supported by this package, but is missing from the ${$e(this.configuration,"supportedArchitectures",xi.SETTING)} setting`),V.add(W.locatorHash)),$.add(W.locatorHash)));this.storedResolutions=u,this.storedDescriptors=l,this.storedPackages=c,this.accessibleLocators=H,this.conditionalLocators=$,this.disabledLocators=V,this.originalPackages=g,this.optionalBuilds=L,this.peerRequirements=j,this.refreshWorkspaceDependencies()}async fetchEverything({cache:e,report:t,fetcher:i,mode:n}){let s={mockedPackages:this.disabledLocators,unstablePackages:this.conditionalLocators},o=i||this.configuration.makeFetcher(),a={checksums:this.storedChecksums,project:this,cache:e,fetcher:o,report:t,cacheOptions:s},l=Array.from(new Set(wn(this.storedResolutions.values(),[f=>{let h=this.storedPackages.get(f);if(!h)throw new Error("Assertion failed: The locator should have been registered");return Cs(h)}])));n==="update-lockfile"&&(l=l.filter(f=>!this.storedChecksums.has(f)));let c=!1,u=vi.progressViaCounter(l.length);await t.reportProgress(u);let g=(0,x$.default)(OMe);if(await t.startCacheReport(async()=>{await to(l.map(f=>g(async()=>{let h=this.storedPackages.get(f);if(!h)throw new Error("Assertion failed: The locator should have been registered");if(jo(h))return;let p;try{p=await o.fetch(h,a)}catch(C){C.message=`${mt(this.configuration,h)}: ${C.message}`,t.reportExceptionOnce(C),c=C;return}p.checksum!=null?this.storedChecksums.set(h.locatorHash,p.checksum):this.storedChecksums.delete(h.locatorHash),p.releaseFs&&p.releaseFs()}).finally(()=>{u.tick()})))}),c)throw c}async linkEverything({cache:e,report:t,fetcher:i,mode:n}){var ae,ge,re;let s={mockedPackages:this.disabledLocators,unstablePackages:this.conditionalLocators,skipIntegrityCheck:!0},o=i||this.configuration.makeFetcher(),a={checksums:this.storedChecksums,project:this,cache:e,fetcher:o,report:t,skipIntegrityCheck:!0,cacheOptions:s},l=this.configuration.getLinkers(),c={project:this,report:t},u=new Map(l.map(O=>{let F=O.makeInstaller(c),ue=F.getCustomDataKey(),he=this.installersCustomData.get(ue);return typeof he<"u"&&F.attachCustomData(he),[O,F]})),g=new Map,f=new Map,h=new Map,p=new Map(await to([...this.accessibleLocators].map(async O=>{let F=this.storedPackages.get(O);if(!F)throw new Error("Assertion failed: The locator should have been registered");return[O,await o.fetch(F,a)]}))),C=[];for(let O of this.accessibleLocators){let F=this.storedPackages.get(O);if(typeof F>"u")throw new Error("Assertion failed: The locator should have been registered");let ue=p.get(F.locatorHash);if(typeof ue>"u")throw new Error("Assertion failed: The fetch result should have been registered");let he=[],ke=Ne=>{he.push(Ne)},Fe=this.tryWorkspaceByLocator(F);if(Fe!==null){let Ne=[],{scripts:oe}=Fe.manifest;for(let we of["preinstall","install","postinstall"])oe.has(we)&&Ne.push([0,we]);try{for(let[we,fe]of u)if(we.supportsPackage(F,c)&&(await fe.installPackage(F,ue,{holdFetchResult:ke})).buildDirective!==null)throw new Error("Assertion failed: Linkers can't return build directives for workspaces; this responsibility befalls to the Yarn core")}finally{he.length===0?(ae=ue.releaseFs)==null||ae.call(ue):C.push(to(he).catch(()=>{}).then(()=>{var we;(we=ue.releaseFs)==null||we.call(ue)}))}let le=x.join(ue.packageFs.getRealPath(),ue.prefixPath);f.set(F.locatorHash,le),!jo(F)&&Ne.length>0&&h.set(F.locatorHash,{directives:Ne,buildLocations:[le]})}else{let Ne=l.find(we=>we.supportsPackage(F,c));if(!Ne)throw new at(12,`${mt(this.configuration,F)} isn't supported by any available linker`);let oe=u.get(Ne);if(!oe)throw new Error("Assertion failed: The installer should have been registered");let le;try{le=await oe.installPackage(F,ue,{holdFetchResult:ke})}finally{he.length===0?(ge=ue.releaseFs)==null||ge.call(ue):C.push(to(he).then(()=>{}).then(()=>{var we;(we=ue.releaseFs)==null||we.call(ue)}))}g.set(F.locatorHash,Ne),f.set(F.locatorHash,le.packageLocation),le.buildDirective&&le.buildDirective.length>0&&le.packageLocation&&h.set(F.locatorHash,{directives:le.buildDirective,buildLocations:[le.packageLocation]})}}let y=new Map;for(let O of this.accessibleLocators){let F=this.storedPackages.get(O);if(!F)throw new Error("Assertion failed: The locator should have been registered");let ue=this.tryWorkspaceByLocator(F)!==null,he=async(ke,Fe)=>{let Ne=f.get(F.locatorHash);if(typeof Ne>"u")throw new Error(`Assertion failed: The package (${mt(this.configuration,F)}) should have been registered`);let oe=[];for(let le of F.dependencies.values()){let we=this.storedResolutions.get(le.descriptorHash);if(typeof we>"u")throw new Error(`Assertion failed: The resolution (${tr(this.configuration,le)}, from ${mt(this.configuration,F)})should have been registered`);let fe=this.storedPackages.get(we);if(typeof fe>"u")throw new Error(`Assertion failed: The package (${we}, resolved from ${tr(this.configuration,le)}) should have been registered`);let Ae=this.tryWorkspaceByLocator(fe)===null?g.get(we):null;if(typeof Ae>"u")throw new Error(`Assertion failed: The package (${we}, resolved from ${tr(this.configuration,le)}) should have been registered`);Ae===ke||Ae===null?f.get(fe.locatorHash)!==null&&oe.push([le,fe]):!ue&&Ne!==null&&uf(y,we).push(Ne)}Ne!==null&&await Fe.attachInternalDependencies(F,oe)};if(ue)for(let[ke,Fe]of u)ke.supportsPackage(F,c)&&await he(ke,Fe);else{let ke=g.get(F.locatorHash);if(!ke)throw new Error("Assertion failed: The linker should have been found");let Fe=u.get(ke);if(!Fe)throw new Error("Assertion failed: The installer should have been registered");await he(ke,Fe)}}for(let[O,F]of y){let ue=this.storedPackages.get(O);if(!ue)throw new Error("Assertion failed: The package should have been registered");let he=g.get(ue.locatorHash);if(!he)throw new Error("Assertion failed: The linker should have been found");let ke=u.get(he);if(!ke)throw new Error("Assertion failed: The installer should have been registered");await ke.attachExternalDependents(ue,F)}let B=new Map;for(let O of u.values()){let F=await O.finalizeInstall();for(let ue of(re=F==null?void 0:F.records)!=null?re:[])h.set(ue.locatorHash,{directives:ue.buildDirective,buildLocations:ue.buildLocations});typeof(F==null?void 0:F.customData)<"u"&&B.set(O.getCustomDataKey(),F.customData)}if(this.installersCustomData=B,await to(C),n==="skip-build")return;let v=new Set(this.storedPackages.keys()),D=new Set(h.keys());for(let O of D)v.delete(O);let L=(0,J0.createHash)("sha512");L.update(process.versions.node),await this.configuration.triggerHook(O=>O.globalHashGeneration,this,O=>{L.update("\0"),L.update(O)});let H=L.digest("hex"),j=new Map,$=O=>{let F=j.get(O.locatorHash);if(typeof F<"u")return F;let ue=this.storedPackages.get(O.locatorHash);if(typeof ue>"u")throw new Error("Assertion failed: The package should have been registered");let he=(0,J0.createHash)("sha512");he.update(O.locatorHash),j.set(O.locatorHash,"<recursive>");for(let ke of ue.dependencies.values()){let Fe=this.storedResolutions.get(ke.descriptorHash);if(typeof Fe>"u")throw new Error(`Assertion failed: The resolution (${tr(this.configuration,ke)}) should have been registered`);let Ne=this.storedPackages.get(Fe);if(typeof Ne>"u")throw new Error("Assertion failed: The package should have been registered");he.update($(Ne))}return F=he.digest("hex"),j.set(O.locatorHash,F),F},V=(O,F)=>{let ue=(0,J0.createHash)("sha512");ue.update(H),ue.update($(O));for(let he of F)ue.update(he);return ue.digest("hex")},W=new Map,_=!1,A=O=>{let F=new Set([O.locatorHash]);for(let ue of F){let he=this.storedPackages.get(ue);if(!he)throw new Error("Assertion failed: The package should have been registered");for(let ke of he.dependencies.values()){let Fe=this.storedResolutions.get(ke.descriptorHash);if(!Fe)throw new Error(`Assertion failed: The resolution (${tr(this.configuration,ke)}) should have been registered`);if(Fe!==O.locatorHash&&D.has(Fe))return!1;let Ne=this.storedPackages.get(Fe);if(!Ne)throw new Error("Assertion failed: The package should have been registered");let oe=this.tryWorkspaceByLocator(Ne);if(oe){if(oe.anchoredLocator.locatorHash!==O.locatorHash&&D.has(oe.anchoredLocator.locatorHash))return!1;F.add(oe.anchoredLocator.locatorHash)}F.add(Fe)}}return!0};for(;D.size>0;){let O=D.size,F=[];for(let ue of D){let he=this.storedPackages.get(ue);if(!he)throw new Error("Assertion failed: The package should have been registered");if(!A(he))continue;let ke=h.get(he.locatorHash);if(!ke)throw new Error("Assertion failed: The build directive should have been registered");let Fe=V(he,ke.buildLocations);if(this.storedBuildState.get(he.locatorHash)===Fe){W.set(he.locatorHash,Fe),D.delete(ue);continue}_||(await this.persistInstallStateFile(),_=!0),this.storedBuildState.has(he.locatorHash)?t.reportInfo(8,`${mt(this.configuration,he)} must be rebuilt because its dependency tree changed`):t.reportInfo(7,`${mt(this.configuration,he)} must be built because it never has been before or the last one failed`);let Ne=ke.buildLocations.map(async oe=>{if(!x.isAbsolute(oe))throw new Error(`Assertion failed: Expected the build location to be absolute (not ${oe})`);for(let[le,we]of ke.directives){let fe=`# This file contains the result of Yarn building a package (${Cs(he)})
+`;switch(le){case 0:fe+=`# Script name: ${we}
+`;break;case 1:fe+=`# Script code: ${we}
+`;break}let Ae=null;if(!await M.mktempPromise(async ne=>{let Y=x.join(ne,"build.log"),{stdout:pe,stderr:ie}=this.configuration.getSubprocessStreams(Y,{header:fe,prefix:mt(this.configuration,he),report:t}),de;try{switch(le){case 0:de=await kB(he,we,[],{cwd:oe,project:this,stdin:Ae,stdout:pe,stderr:ie});break;case 1:de=await JR(he,we,[],{cwd:oe,project:this,stdin:Ae,stdout:pe,stderr:ie});break}}catch(Pt){ie.write(Pt.stack),de=1}if(pe.end(),ie.end(),de===0)return!0;M.detachTemp(ne);let _e=`${mt(this.configuration,he)} couldn't be built successfully (exit code ${$e(this.configuration,de,Ue.NUMBER)}, logs can be found here: ${$e(this.configuration,Y,Ue.PATH)})`;return this.optionalBuilds.has(he.locatorHash)?(t.reportInfo(9,_e),!0):(t.reportError(9,_e),!1)}))return!1}return!0});F.push(...Ne,Promise.allSettled(Ne).then(oe=>{D.delete(ue),oe.every(le=>le.status==="fulfilled"&&le.value===!0)&&W.set(he.locatorHash,Fe)}))}if(await to(F),O===D.size){let ue=Array.from(D).map(he=>{let ke=this.storedPackages.get(he);if(!ke)throw new Error("Assertion failed: The package should have been registered");return mt(this.configuration,ke)}).join(", ");t.reportError(3,`Some packages have circular dependencies that make their build order unsatisfiable - as a result they won't be built (affected packages are: ${ue})`);break}}this.storedBuildState=W}async install(e){var a,l;let t=this.configuration.get("nodeLinker");(a=ye.telemetry)==null||a.reportInstall(t),await e.report.startTimerPromise("Project validation",{skipIfEmpty:!0},async()=>{await this.configuration.triggerHook(c=>c.validateProject,this,{reportWarning:e.report.reportWarning.bind(e.report),reportError:e.report.reportError.bind(e.report)})});for(let c of this.configuration.packageExtensions.values())for(let[,u]of c)for(let g of u)g.status="inactive";let i=x.join(this.cwd,this.configuration.get("lockfileFilename")),n=null;if(e.immutable)try{n=await M.readFilePromise(i,"utf8")}catch(c){throw c.code==="ENOENT"?new at(28,"The lockfile would have been created by this install, which is explicitly forbidden."):c}await e.report.startTimerPromise("Resolution step",async()=>{await this.resolveEverything(e)}),await e.report.startTimerPromise("Post-resolution validation",{skipIfEmpty:!0},async()=>{for(let[,c]of this.configuration.packageExtensions)for(let[,u]of c)for(let g of u)if(g.userProvided){let f=$e(this.configuration,g,Ue.PACKAGE_EXTENSION);switch(g.status){case"inactive":e.report.reportWarning(68,`${f}: No matching package in the dependency tree; 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+Try running the command again with the package name prefixed: ${ee.pretty(t,"yarn add",xi.CODE)} ${ee.pretty(t,P.makeDescriptor(P.makeIdent(null,"my-package"),`${D[0]}...`),xi.DESCRIPTOR)}`);if(!v)throw new be(`The ${ee.pretty(t,B,xi.CODE)} string didn't match the required format (package-name@range). Did you perhaps forget to explicitly reference the package name?`);let L=pqe(n,v,{dev:this.dev,peer:this.peer,preferDev:this.preferDev,optional:this.optional});return await Promise.all(L.map(async j=>{let $=await Um(v,{project:i,workspace:n,cache:s,target:j,modifier:a,strategies:l,maxResults:c});return{request:v,suggestedDescriptors:$,target:j}}))})).then(B=>B.flat()),g=await ra.start({configuration:t,stdout:this.context.stdout,suggestInstall:!1},async B=>{for(let{request:v,suggestedDescriptors:{suggestions:D,rejections:L}}of u)if(D.filter(j=>j.descriptor!==null).length===0){let[j]=L;if(typeof j>"u")throw new Error("Assertion failed: Expected an error to have been set");i.configuration.get("enableNetwork")?B.reportError(27,`${P.prettyDescriptor(t,v)} can't be resolved to a satisfying range`):B.reportError(27,`${P.prettyDescriptor(t,v)} can't be resolved to a satisfying range (note: network resolution has been disabled)`),B.reportSeparator(),B.reportExceptionOnce(j)}});if(g.hasErrors())return g.exitCode();let f=!1,h=[],p=[];for(let{suggestedDescriptors:{suggestions:B},target:v}of u){let D,L=B.filter(V=>V.descriptor!==null),H=L[0].descriptor,j=L.every(V=>P.areDescriptorsEqual(V.descriptor,H));L.length===1||j?D=H:(f=!0,{answer:D}=await(0,Rse.prompt)({type:"select",name:"answer",message:"Which range do you want to use?",choices:B.map(({descriptor:V,name:W,reason:_})=>V?{name:W,hint:_,descriptor:V}:{name:W,hint:_,disabled:!0}),onCancel:()=>process.exit(130),result(V){return this.find(V,"descriptor")},stdin:this.context.stdin,stdout:this.context.stdout}));let $=n.manifest[v].get(D.identHash);(typeof $>"u"||$.descriptorHash!==D.descriptorHash)&&(n.manifest[v].set(D.identHash,D),this.optional&&(v==="dependencies"?n.manifest.ensureDependencyMeta({...D,range:"unknown"}).optional=!0:v==="peerDependencies"&&(n.manifest.ensurePeerDependencyMeta({...D,range:"unknown"}).optional=!0)),typeof $>"u"?h.push([n,v,D,l]):p.push([n,v,$,D]))}return await t.triggerMultipleHooks(B=>B.afterWorkspaceDependencyAddition,h),await t.triggerMultipleHooks(B=>B.afterWorkspaceDependencyReplacement,p),f&&this.context.stdout.write(`
+`),(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout,includeLogs:!this.context.quiet},async B=>{await i.install({cache:s,report:B,mode:this.mode})})).exitCode()}};nu.paths=[["add"]],nu.usage=ve.Usage({description:"add dependencies to the project",details:"\n      This command adds a package to the package.json for the nearest workspace.\n\n      - If it didn't exist before, the package will by default be added to the regular `dependencies` field, but this behavior can be overriden thanks to the `-D,--dev` flag (which will cause the dependency to be added to the `devDependencies` field instead) and the `-P,--peer` flag (which will do the same but for `peerDependencies`).\n\n      - If the package was already listed in your dependencies, it will by default be upgraded whether it's part of your `dependencies` or `devDependencies` (it won't ever update `peerDependencies`, though).\n\n      - If set, the `--prefer-dev` flag will operate as a more flexible `-D,--dev` in that it will add the package to your `devDependencies` if it isn't already listed in either `dependencies` or `devDependencies`, but it will also happily upgrade your `dependencies` if that's what you already use (whereas `-D,--dev` would throw an exception).\n\n      - If set, the `-O,--optional` flag will add the package to the `optionalDependencies` field and, in combination with the `-P,--peer` flag, it will add the package as an optional peer dependency. If the package was already listed in your `dependencies`, it will be upgraded to `optionalDependencies`. If the package was already listed in your `peerDependencies`, in combination with the `-P,--peer` flag, it will be upgraded to an optional peer dependency: `\"peerDependenciesMeta\": { \"<package>\": { \"optional\": true } }`\n\n      - If the added package doesn't specify a range at all its `latest` tag will be resolved and the returned version will be used to generate a new semver range (using the `^` modifier by default unless otherwise configured via the `defaultSemverRangePrefix` configuration, or the `~` modifier if `-T,--tilde` is specified, or no modifier at all if `-E,--exact` is specified). Two exceptions to this rule: the first one is that if the package is a workspace then its local version will be used, and the second one is that if you use `-P,--peer` the default range will be `*` and won't be resolved at all.\n\n      - If the added package specifies a range (such as `^1.0.0`, `latest`, or `rc`), Yarn will add this range as-is in the resulting package.json entry (in particular, tags such as `rc` will be encoded as-is rather than being converted into a semver range).\n\n      If the `--cached` option is used, Yarn will preferably reuse the highest version already used somewhere within the project, even if through a transitive dependency.\n\n      If the `-i,--interactive` option is used (or if the `preferInteractive` settings is toggled on) the command will first try to check whether other workspaces in the project use the specified package and, if so, will offer to reuse them.\n\n      If the `--mode=<mode>` option is set, Yarn will change which artifacts are generated. The modes currently supported are:\n\n      - `skip-build` will not run the build scripts at all. Note that this is different from setting `enableScripts` to false because the latter will disable build scripts, and thus affect the content of the artifacts generated on disk, whereas the former will just disable the build step - but not the scripts themselves, which just won't run.\n\n      - `update-lockfile` will skip the link step altogether, and only fetch packages that are missing from the lockfile (or that have no associated checksums). This mode is typically used by tools like Renovate or Dependabot to keep a lockfile up-to-date without incurring the full install cost.\n\n      For a compilation of all the supported protocols, please consult the dedicated page from our website: https://yarnpkg.com/features/protocols.\n    ",examples:[["Add a regular package to the current workspace","$0 add lodash"],["Add a specific version for a package to the current workspace","$0 add lodash@1.2.3"],["Add a package from a GitHub repository (the master branch) to the current workspace using a URL","$0 add lodash@https://github.com/lodash/lodash"],["Add a package from a GitHub repository (the master branch) to the current workspace using the GitHub protocol","$0 add lodash@github:lodash/lodash"],["Add a package from a GitHub repository (the master branch) to the current workspace using the GitHub protocol (shorthand)","$0 add lodash@lodash/lodash"],["Add a package from a specific branch of a GitHub repository to the current workspace using the GitHub protocol (shorthand)","$0 add lodash-es@lodash/lodash#es"]]});function pqe(r,e,{dev:t,peer:i,preferDev:n,optional:s}){let o=r.manifest["dependencies"].has(e.identHash),a=r.manifest["devDependencies"].has(e.identHash),l=r.manifest["peerDependencies"].has(e.identHash);if((t||i)&&o)throw new be(`Package "${P.prettyIdent(r.project.configuration,e)}" is already listed as a regular dependency - remove the -D,-P flags or remove it from your dependencies first`);if(!t&&!i&&l)throw new be(`Package "${P.prettyIdent(r.project.configuration,e)}" is already listed as a peer dependency - use either of -D or -P, or remove it from your peer dependencies first`);if(s&&a)throw new be(`Package "${P.prettyIdent(r.project.configuration,e)}" is already listed as a dev dependency - remove the -O flag or remove it from your dev dependencies first`);if(s&&!i&&l)throw new be(`Package "${P.prettyIdent(r.project.configuration,e)}" is already listed as a peer dependency - remove the -O flag or add the -P flag or remove it from your peer dependencies first`);if((t||n)&&s)throw new be(`Package "${P.prettyIdent(r.project.configuration,e)}" cannot simultaneously be a dev dependency and an optional dependency`);let c=[];return i&&c.push("peerDependencies"),(t||n)&&c.push("devDependencies"),s&&c.push("dependencies"),c.length>0?c:a?["devDependencies"]:l?["peerDependencies"]:["dependencies"]}var su=class extends De{constructor(){super(...arguments);this.verbose=z.Boolean("-v,--verbose",!1,{description:"Print both the binary name and the locator of the package that provides the binary"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.name=z.String({required:!1})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,locator:n}=await je.find(t,this.context.cwd);if(await i.restoreInstallState(),this.name){let a=(await Wt.getPackageAccessibleBinaries(n,{project:i})).get(this.name);if(!a)throw new be(`Couldn't find a binary named "${this.name}" for package "${P.prettyLocator(t,n)}"`);let[,l]=a;return this.context.stdout.write(`${l}
+`),0}return(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout},async o=>{let a=await Wt.getPackageAccessibleBinaries(n,{project:i}),c=Array.from(a.keys()).reduce((u,g)=>Math.max(u,g.length),0);for(let[u,[g,f]]of a)o.reportJson({name:u,source:P.stringifyIdent(g),path:f});if(this.verbose)for(let[u,[g]]of a)o.reportInfo(null,`${u.padEnd(c," ")}   ${P.prettyLocator(t,g)}`);else for(let u of a.keys())o.reportInfo(null,u)})).exitCode()}};su.paths=[["bin"]],su.usage=ve.Usage({description:"get the path to a binary script",details:`
+      When used without arguments, this command will print the list of all the binaries available in the current workspace. Adding the \`-v,--verbose\` flag will cause the output to contain both the binary name and the locator of the package that provides the binary.
+
+      When an argument is specified, this command will just print the path to the binary on the standard output and exit. Note that the reported path may be stored within a zip archive.
+    `,examples:[["List all the available binaries","$0 bin"],["Print the path to a specific binary","$0 bin eslint"]]});var ou=class extends De{constructor(){super(...arguments);this.mirror=z.Boolean("--mirror",!1,{description:"Remove the global cache files instead of the local cache files"});this.all=z.Boolean("--all",!1,{description:"Remove both the global cache files and the local cache files of the current project"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=await Rt.find(t);return(await Ge.start({configuration:t,stdout:this.context.stdout},async()=>{let s=(this.all||this.mirror)&&i.mirrorCwd!==null,o=!this.mirror;s&&(await M.removePromise(i.mirrorCwd),await t.triggerHook(a=>a.cleanGlobalArtifacts,t)),o&&await M.removePromise(i.cwd)})).exitCode()}};ou.paths=[["cache","clean"],["cache","clear"]],ou.usage=ve.Usage({description:"remove the shared cache files",details:`
+      This command will remove all the files from the cache.
+    `,examples:[["Remove all the local archives","$0 cache clean"],["Remove all the archives stored in the ~/.yarn directory","$0 cache clean --mirror"]]});var Fse=Pe(oQ()),GT=J("util"),au=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.unsafe=z.Boolean("--no-redacted",!1,{description:"Don't redact secrets (such as tokens) from the output"});this.name=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=this.name.replace(/[.[].*$/,""),n=this.name.replace(/^[^.[]*/,"");if(typeof t.settings.get(i)>"u")throw new be(`Couldn't find a configuration settings named "${i}"`);let o=t.getSpecial(i,{hideSecrets:!this.unsafe,getNativePaths:!0}),a=Ie.convertMapsToIndexableObjects(o),l=n?(0,Fse.default)(a,n):a,c=await Ge.start({configuration:t,includeFooter:!1,json:this.json,stdout:this.context.stdout},async u=>{u.reportJson(l)});if(!this.json){if(typeof l=="string")return this.context.stdout.write(`${l}
+`),c.exitCode();GT.inspect.styles.name="cyan",this.context.stdout.write(`${(0,GT.inspect)(l,{depth:1/0,colors:t.get("enableColors"),compact:!1})}
+`)}return c.exitCode()}};au.paths=[["config","get"]],au.usage=ve.Usage({description:"read a configuration settings",details:`
+      This command will print a configuration setting.
+
+      Secrets (such as tokens) will be redacted from the output by default. If this behavior isn't desired, set the \`--no-redacted\` to get the untransformed value.
+    `,examples:[["Print a simple configuration setting","yarn config get yarnPath"],["Print a complex configuration setting","yarn config get packageExtensions"],["Print a nested field from the configuration",`yarn config get 'npmScopes["my-company"].npmRegistryServer'`],["Print a token from the configuration","yarn config get npmAuthToken --no-redacted"],["Print a configuration setting as JSON","yarn config get packageExtensions --json"]]});var qoe=Pe(zT()),Joe=Pe(oQ()),Woe=Pe(joe()),VT=J("util"),Au=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Set complex configuration settings to JSON values"});this.home=z.Boolean("-H,--home",!1,{description:"Update the home configuration instead of the project configuration"});this.name=z.String();this.value=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=()=>{if(!t.projectCwd)throw new be("This command must be run from within a project folder");return t.projectCwd},n=this.name.replace(/[.[].*$/,""),s=this.name.replace(/^[^.[]*\.?/,"");if(typeof t.settings.get(n)>"u")throw new be(`Couldn't find a configuration settings named "${n}"`);if(n==="enableStrictSettings")throw new be("This setting only affects the file it's in, and thus cannot be set from the CLI");let a=this.json?JSON.parse(this.value):this.value;await(this.home?p=>ye.updateHomeConfiguration(p):p=>ye.updateConfiguration(i(),p))(p=>{if(s){let C=(0,qoe.default)(p);return(0,Woe.default)(C,this.name,a),C}else return{...p,[n]:a}});let u=(await ye.find(this.context.cwd,this.context.plugins)).getSpecial(n,{hideSecrets:!0,getNativePaths:!0}),g=Ie.convertMapsToIndexableObjects(u),f=s?(0,Joe.default)(g,s):g;return(await Ge.start({configuration:t,includeFooter:!1,stdout:this.context.stdout},async p=>{VT.inspect.styles.name="cyan",p.reportInfo(0,`Successfully set ${this.name} to ${(0,VT.inspect)(f,{depth:1/0,colors:t.get("enableColors"),compact:!1})}`)})).exitCode()}};Au.paths=[["config","set"]],Au.usage=ve.Usage({description:"change a configuration settings",details:`
+      This command will set a configuration setting.
+
+      When used without the \`--json\` flag, it can only set a simple configuration setting (a string, a number, or a boolean).
+
+      When used with the \`--json\` flag, it can set both simple and complex configuration settings, including Arrays and Objects.
+    `,examples:[["Set a simple configuration setting (a string, a number, or a boolean)","yarn config set initScope myScope"],["Set a simple configuration setting (a string, a number, or a boolean) using the `--json` flag",'yarn config set initScope --json \\"myScope\\"'],["Set a complex configuration setting (an Array) using the `--json` flag",`yarn config set unsafeHttpWhitelist --json '["*.example.com", "example.com"]'`],["Set a complex configuration setting (an Object) using the `--json` flag",`yarn config set packageExtensions --json '{ "@babel/parser@*": { "dependencies": { "@babel/types": "*" } } }'`],["Set a nested configuration setting",'yarn config set npmScopes.company.npmRegistryServer "https://npm.example.com"'],["Set a nested configuration setting using indexed access for non-simple keys",`yarn config set 'npmRegistries["//npm.example.com"].npmAuthToken' "ffffffff-ffff-ffff-ffff-ffffffffffff"`]]});var rae=Pe(zT()),iae=Pe(sm()),nae=Pe(tae()),lu=class extends De{constructor(){super(...arguments);this.home=z.Boolean("-H,--home",!1,{description:"Update the home configuration instead of the project configuration"});this.name=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=()=>{if(!t.projectCwd)throw new be("This command must be run from within a project folder");return t.projectCwd},n=this.name.replace(/[.[].*$/,""),s=this.name.replace(/^[^.[]*\.?/,"");if(typeof t.settings.get(n)>"u")throw new be(`Couldn't find a configuration settings named "${n}"`);let a=this.home?c=>ye.updateHomeConfiguration(c):c=>ye.updateConfiguration(i(),c);return(await Ge.start({configuration:t,includeFooter:!1,stdout:this.context.stdout},async c=>{let u=!1;await a(g=>{if(!(0,iae.default)(g,this.name))return c.reportWarning(0,`Configuration doesn't contain setting ${this.name}; there is nothing to unset`),u=!0,g;let f=s?(0,rae.default)(g):{...g};return(0,nae.default)(f,this.name),f}),u||c.reportInfo(0,`Successfully unset ${this.name}`)})).exitCode()}};lu.paths=[["config","unset"]],lu.usage=ve.Usage({description:"unset a configuration setting",details:`
+      This command will unset a configuration setting.
+    `,examples:[["Unset a simple configuration setting","yarn config unset initScope"],["Unset a complex configuration setting","yarn config unset packageExtensions"],["Unset a nested configuration setting","yarn config unset npmScopes.company.npmRegistryServer"]]});var XT=J("util"),cu=class extends De{constructor(){super(...arguments);this.verbose=z.Boolean("-v,--verbose",!1,{description:"Print the setting description on top of the regular key/value information"});this.why=z.Boolean("--why",!1,{description:"Print the reason why a setting is set a particular way"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins,{strict:!1});return(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout},async n=>{if(t.invalid.size>0&&!this.json){for(let[s,o]of t.invalid)n.reportError(34,`Invalid configuration key "${s}" in ${o}`);n.reportSeparator()}if(this.json){let s=Ie.sortMap(t.settings.keys(),o=>o);for(let o of s){let a=t.settings.get(o),l=t.getSpecial(o,{hideSecrets:!0,getNativePaths:!0}),c=t.sources.get(o);this.verbose?n.reportJson({key:o,effective:l,source:c}):n.reportJson({key:o,effective:l,source:c,...a})}}else{let s=Ie.sortMap(t.settings.keys(),l=>l),o=s.reduce((l,c)=>Math.max(l,c.length),0),a={breakLength:1/0,colors:t.get("enableColors"),maxArrayLength:2};if(this.why||this.verbose){let l=s.map(u=>{let g=t.settings.get(u);if(!g)throw new Error(`Assertion failed: This settings ("${u}") should have been registered`);let f=this.why?t.sources.get(u)||"<default>":g.description;return[u,f]}),c=l.reduce((u,[,g])=>Math.max(u,g.length),0);for(let[u,g]of l)n.reportInfo(null,`${u.padEnd(o," ")}   ${g.padEnd(c," ")}   ${(0,XT.inspect)(t.getSpecial(u,{hideSecrets:!0,getNativePaths:!0}),a)}`)}else for(let l of s)n.reportInfo(null,`${l.padEnd(o," ")}   ${(0,XT.inspect)(t.getSpecial(l,{hideSecrets:!0,getNativePaths:!0}),a)}`)}})).exitCode()}};cu.paths=[["config"]],cu.usage=ve.Usage({description:"display the current configuration",details:`
+      This command prints the current active configuration settings.
+    `,examples:[["Print the active configuration settings","$0 config"]]});as();var PQ={};ut(PQ,{Strategy:()=>Gm,acceptedStrategies:()=>m4e,dedupe:()=>ZT});var sae=Pe(yn()),Gm=(e=>(e.HIGHEST="highest",e))(Gm||{}),m4e=new Set(Object.values(Gm)),E4e={highest:async(r,e,{resolver:t,fetcher:i,resolveOptions:n,fetchOptions:s})=>{let o=new Map;for(let[a,l]of r.storedResolutions){let c=r.storedDescriptors.get(a);if(typeof c>"u")throw new Error(`Assertion failed: The descriptor (${a}) should have been registered`);Ie.getSetWithDefault(o,c.identHash).add(l)}return Array.from(r.storedDescriptors.values(),async a=>{if(e.length&&!sae.default.isMatch(P.stringifyIdent(a),e))return null;let l=r.storedResolutions.get(a.descriptorHash);if(typeof l>"u")throw new Error(`Assertion failed: The resolution (${a.descriptorHash}) should have been registered`);let c=r.originalPackages.get(l);if(typeof c>"u"||!t.shouldPersistResolution(c,n))return null;let u=o.get(a.identHash);if(typeof u>"u")throw new Error(`Assertion failed: The resolutions (${a.identHash}) should have been registered`);if(u.size===1)return null;let g=[...u].map(y=>{let B=r.originalPackages.get(y);if(typeof B>"u")throw new Error(`Assertion failed: The package (${y}) should have been registered`);return B.reference}),f=await t.getSatisfying(a,g,n),h=f==null?void 0:f[0];if(typeof h>"u")return null;let p=h.locatorHash,C=r.originalPackages.get(p);if(typeof C>"u")throw new Error(`Assertion failed: The package (${p}) should have been registered`);return p===l?null:{descriptor:a,currentPackage:c,updatedPackage:C}})}};async function ZT(r,{strategy:e,patterns:t,cache:i,report:n}){let{configuration:s}=r,o=new ti,a=s.makeResolver(),l=s.makeFetcher(),c={cache:i,checksums:r.storedChecksums,fetcher:l,project:r,report:o,skipIntegrityCheck:!0,cacheOptions:{skipIntegrityCheck:!0}},u={project:r,resolver:a,report:o,fetchOptions:c};return await n.startTimerPromise("Deduplication step",async()=>{let g=E4e[e],f=await g(r,t,{resolver:a,resolveOptions:u,fetcher:l,fetchOptions:c}),h=vi.progressViaCounter(f.length);await n.reportProgress(h);let p=0;await Promise.all(f.map(B=>B.then(v=>{if(v===null)return;p++;let{descriptor:D,currentPackage:L,updatedPackage:H}=v;n.reportInfo(0,`${P.prettyDescriptor(s,D)} can be deduped from ${P.prettyLocator(s,L)} to ${P.prettyLocator(s,H)}`),n.reportJson({descriptor:P.stringifyDescriptor(D),currentResolution:P.stringifyLocator(L),updatedResolution:P.stringifyLocator(H)}),r.storedResolutions.set(D.descriptorHash,H.locatorHash)}).finally(()=>h.tick())));let C;switch(p){case 0:C="No packages";break;case 1:C="One package";break;default:C=`${p} packages`}let y=ee.pretty(s,e,ee.Type.CODE);return n.reportInfo(0,`${C} can be deduped using the ${y} strategy`),p})}var uu=class extends De{constructor(){super(...arguments);this.strategy=z.String("-s,--strategy","highest",{description:"The strategy to use when deduping dependencies",validator:Vi(Gm)});this.check=z.Boolean("-c,--check",!1,{description:"Exit with exit code 1 when duplicates are found, without persisting the dependency tree"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.mode=z.String("--mode",{description:"Change what artifacts installs generate",validator:Vi($n)});this.patterns=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i}=await je.find(t,this.context.cwd),n=await Rt.find(t);await i.restoreInstallState({restoreResolutions:!1});let s=0,o=await Ge.start({configuration:t,includeFooter:!1,stdout:this.context.stdout,json:this.json},async a=>{s=await ZT(i,{strategy:this.strategy,patterns:this.patterns,cache:n,report:a})});return o.hasErrors()?o.exitCode():this.check?s?1:0:(await Ge.start({configuration:t,stdout:this.context.stdout,json:this.json},async l=>{await i.install({cache:n,report:l,mode:this.mode})})).exitCode()}};uu.paths=[["dedupe"]],uu.usage=ve.Usage({description:"deduplicate dependencies with overlapping ranges",details:"\n      Duplicates are defined as descriptors with overlapping ranges being resolved and locked to different locators. They are a natural consequence of Yarn's deterministic installs, but they can sometimes pile up and unnecessarily increase the size of your project.\n\n      This command dedupes dependencies in the current project using different strategies (only one is implemented at the moment):\n\n      - `highest`: Reuses (where possible) the locators with the highest versions. This means that dependencies can only be upgraded, never downgraded. It's also guaranteed that it never takes more than a single pass to dedupe the entire dependency tree.\n\n      **Note:** Even though it never produces a wrong dependency tree, this command should be used with caution, as it modifies the dependency tree, which can sometimes cause problems when packages don't strictly follow semver recommendations. Because of this, it is recommended to also review the changes manually.\n\n      If set, the `-c,--check` flag will only report the found duplicates, without persisting the modified dependency tree. If changes are found, the command will exit with a non-zero exit code, making it suitable for CI purposes.\n\n      If the `--mode=<mode>` option is set, Yarn will change which artifacts are generated. The modes currently supported are:\n\n      - `skip-build` will not run the build scripts at all. Note that this is different from setting `enableScripts` to false because the latter will disable build scripts, and thus affect the content of the artifacts generated on disk, whereas the former will just disable the build step - but not the scripts themselves, which just won't run.\n\n      - `update-lockfile` will skip the link step altogether, and only fetch packages that are missing from the lockfile (or that have no associated checksums). This mode is typically used by tools like Renovate or Dependabot to keep a lockfile up-to-date without incurring the full install cost.\n\n      This command accepts glob patterns as arguments (if valid Idents and supported by [micromatch](https://github.com/micromatch/micromatch)). Make sure to escape the patterns, to prevent your own shell from trying to expand them.\n\n      ### In-depth explanation:\n\n      Yarn doesn't deduplicate dependencies by default, otherwise installs wouldn't be deterministic and the lockfile would be useless. What it actually does is that it tries to not duplicate dependencies in the first place.\n\n      **Example:** If `foo@^2.3.4` (a dependency of a dependency) has already been resolved to `foo@2.3.4`, running `yarn add foo@*`will cause Yarn to reuse `foo@2.3.4`, even if the latest `foo` is actually `foo@2.10.14`, thus preventing unnecessary duplication.\n\n      Duplication happens when Yarn can't unlock dependencies that have already been locked inside the lockfile.\n\n      **Example:** If `foo@^2.3.4` (a dependency of a dependency) has already been resolved to `foo@2.3.4`, running `yarn add foo@2.10.14` will cause Yarn to install `foo@2.10.14` because the existing resolution doesn't satisfy the range `2.10.14`. This behavior can lead to (sometimes) unwanted duplication, since now the lockfile contains 2 separate resolutions for the 2 `foo` descriptors, even though they have overlapping ranges, which means that the lockfile can be simplified so that both descriptors resolve to `foo@2.10.14`.\n    ",examples:[["Dedupe all packages","$0 dedupe"],["Dedupe all packages using a specific strategy","$0 dedupe --strategy highest"],["Dedupe a specific package","$0 dedupe lodash"],["Dedupe all packages with the `@babel/*` scope","$0 dedupe '@babel/*'"],["Check for duplicates (can be used as a CI step)","$0 dedupe --check"]]});var Jh=class extends De{async execute(){let{plugins:e}=await ye.find(this.context.cwd,this.context.plugins),t=[];for(let o of e){let{commands:a}=o[1];if(a){let c=Un.from(a).definitions();t.push([o[0],c])}}let i=this.cli.definitions(),n=(o,a)=>o.split(" ").slice(1).join()===a.split(" ").slice(1).join(),s=oae()["@yarnpkg/builder"].bundles.standard;for(let o of t){let a=o[1];for(let l of a)i.find(c=>n(c.path,l.path)).plugin={name:o[0],isDefault:s.includes(o[0])}}this.context.stdout.write(`${JSON.stringify(i,null,2)}
+`)}};Jh.paths=[["--clipanion=definitions"]];var Wh=class extends De{async execute(){this.context.stdout.write(this.cli.usage(null))}};Wh.paths=[["help"],["--help"],["-h"]];var Ym=class extends De{constructor(){super(...arguments);this.leadingArgument=z.String();this.args=z.Proxy()}async execute(){if(this.leadingArgument.match(/[\\/]/)&&!P.tryParseIdent(this.leadingArgument)){let t=x.resolve(this.context.cwd,K.toPortablePath(this.leadingArgument));return await this.cli.run(this.args,{cwd:t})}else return await this.cli.run(["run",this.leadingArgument,...this.args])}};var zh=class extends De{async execute(){this.context.stdout.write(`${Lr||"<unknown>"}
+`)}};zh.paths=[["-v"],["--version"]];var gu=class extends De{constructor(){super(...arguments);this.commandName=z.String();this.args=z.Proxy()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,locator:n}=await je.find(t,this.context.cwd);return await i.restoreInstallState(),await Wt.executePackageShellcode(n,this.commandName,this.args,{cwd:this.context.cwd,stdin:this.context.stdin,stdout:this.context.stdout,stderr:this.context.stderr,project:i})}};gu.paths=[["exec"]],gu.usage=ve.Usage({description:"execute a shell script",details:`
+      This command simply executes a shell script within the context of the root directory of the active workspace using the portable shell.
+
+      It also makes sure to call it in a way that's compatible with the current project (for example, on PnP projects the environment will be setup in such a way that PnP will be correctly injected into the environment).
+    `,examples:[["Execute a single shell command","$0 exec echo Hello World"],["Execute a shell script",'$0 exec "tsc & babel src --out-dir lib"']]});as();var fu=class extends De{constructor(){super(...arguments);this.hash=z.String({required:!1,validator:nd(id(),[sd(/^p[0-9a-f]{5}$/)])})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i}=await je.find(t,this.context.cwd);return await i.restoreInstallState({restoreResolutions:!1}),await i.applyLightResolution(),typeof this.hash<"u"?await y4e(this.hash,i,{stdout:this.context.stdout}):(await Ge.start({configuration:t,stdout:this.context.stdout,includeFooter:!1},async s=>{var a;let o=[([,l])=>P.stringifyLocator(i.storedPackages.get(l.subject)),([,l])=>P.stringifyIdent(l.requested)];for(let[l,c]of Ie.sortMap(i.peerRequirements,o)){let u=i.storedPackages.get(c.subject);if(typeof u>"u")throw new Error("Assertion failed: Expected the subject package to have been registered");let g=i.storedPackages.get(c.rootRequester);if(typeof g>"u")throw new Error("Assertion failed: Expected the root package to have been registered");let f=(a=u.dependencies.get(c.requested.identHash))!=null?a:null,h=ee.pretty(t,l,ee.Type.CODE),p=P.prettyLocator(t,u),C=P.prettyIdent(t,c.requested),y=P.prettyIdent(t,g),B=c.allRequesters.length-1,v=`descendant${B===1?"":"s"}`,D=B>0?` and ${B} ${v}`:"",L=f!==null?"provides":"doesn't provide";s.reportInfo(null,`${h} \u2192 ${p} ${L} ${C} to ${y}${D}`)}})).exitCode()}};fu.paths=[["explain","peer-requirements"]],fu.usage=ve.Usage({description:"explain a set of peer requirements",details:`
+      A set of peer requirements represents all peer requirements that a dependent must satisfy when providing a given peer request to a requester and its descendants.
+
+      When the hash argument is specified, this command prints a detailed explanation of all requirements of the set corresponding to the hash and whether they're satisfied or not.
+
+      When used without arguments, this command lists all sets of peer requirements and the corresponding hash that can be used to get detailed information about a given set.
+
+      **Note:** A hash is a six-letter p-prefixed code that can be obtained from peer dependency warnings or from the list of all peer requirements (\`yarn explain peer-requirements\`).
+    `,examples:[["Explain the corresponding set of peer requirements for a hash","$0 explain peer-requirements p1a4ed"],["List all sets of peer requirements","$0 explain peer-requirements"]]});async function y4e(r,e,t){let{configuration:i}=e,n=e.peerRequirements.get(r);if(typeof n>"u")throw new Error(`No peerDependency requirements found for hash: "${r}"`);return(await Ge.start({configuration:i,stdout:t.stdout,includeFooter:!1},async o=>{var B,v;let a=e.storedPackages.get(n.subject);if(typeof a>"u")throw new Error("Assertion failed: Expected the subject package to have been registered");let l=e.storedPackages.get(n.rootRequester);if(typeof l>"u")throw new Error("Assertion failed: Expected the root package to have been registered");let c=(B=a.dependencies.get(n.requested.identHash))!=null?B:null,u=c!==null?e.storedResolutions.get(c.descriptorHash):null;if(typeof u>"u")throw new Error("Assertion failed: Expected the resolution to have been registered");let g=u!==null?e.storedPackages.get(u):null;if(typeof g>"u")throw new Error("Assertion failed: Expected the provided package to have been registered");let f=[...n.allRequesters.values()].map(D=>{let L=e.storedPackages.get(D);if(typeof L>"u")throw new Error("Assertion failed: Expected the package to be registered");let H=P.devirtualizeLocator(L),j=e.storedPackages.get(H.locatorHash);if(typeof j>"u")throw new Error("Assertion failed: Expected the package to be registered");let $=j.peerDependencies.get(n.requested.identHash);if(typeof $>"u")throw new Error("Assertion failed: Expected the peer dependency to be registered");return{pkg:L,peerDependency:$}});if(g!==null){let D=f.every(({peerDependency:L})=>vt.satisfiesWithPrereleases(g.version,L.range));o.reportInfo(0,`${P.prettyLocator(i,a)} provides ${P.prettyLocator(i,g)} with version ${P.prettyReference(i,(v=g.version)!=null?v:"<missing>")}, which ${D?"satisfies":"doesn't satisfy"} the following requirements:`)}else o.reportInfo(0,`${P.prettyLocator(i,a)} doesn't provide ${P.prettyIdent(i,n.requested)}, breaking the following requirements:`);o.reportSeparator();let h=ee.mark(i),p=[];for(let{pkg:D,peerDependency:L}of Ie.sortMap(f,H=>P.stringifyLocator(H.pkg))){let j=(g!==null?vt.satisfiesWithPrereleases(g.version,L.range):!1)?h.Check:h.Cross;p.push({stringifiedLocator:P.stringifyLocator(D),prettyLocator:P.prettyLocator(i,D),prettyRange:P.prettyRange(i,L.range),mark:j})}let C=Math.max(...p.map(({stringifiedLocator:D})=>D.length)),y=Math.max(...p.map(({prettyRange:D})=>D.length));for(let{stringifiedLocator:D,prettyLocator:L,prettyRange:H,mark:j}of Ie.sortMap(p,({stringifiedLocator:$})=>$))o.reportInfo(null,`${L.padEnd(C+(L.length-D.length)," ")} \u2192 ${H.padEnd(y," ")} ${j}`);p.length>1&&(o.reportSeparator(),o.reportInfo(0,`Note: these requirements start with ${P.prettyLocator(e.configuration,l)}`))})).exitCode()}as();var aae=Pe(Xr()),hu=class extends De{constructor(){super(...arguments);this.onlyIfNeeded=z.Boolean("--only-if-needed",!1,{description:"Only lock the Yarn version if it isn't already locked"});this.version=z.String()}async execute(){var o;let t=await ye.find(this.context.cwd,this.context.plugins);if(this.onlyIfNeeded&&t.get("yarnPath")){let a=t.sources.get("yarnPath");if(!a)throw new Error("Assertion failed: Expected 'yarnPath' to have a source");let l=(o=t.projectCwd)!=null?o:t.startingCwd;if(x.contains(l,a))return 0}let i=()=>{if(typeof Lr>"u")throw new be("The --install flag can only be used without explicit version specifier from the Yarn CLI");return`file://${process.argv[1]}`},n;if(this.version==="self")n=i();else if(this.version==="latest"||this.version==="berry"||this.version==="stable")n=`https://repo.yarnpkg.com/${await jm(t,"stable")}/packages/yarnpkg-cli/bin/yarn.js`;else if(this.version==="canary")n=`https://repo.yarnpkg.com/${await jm(t,"canary")}/packages/yarnpkg-cli/bin/yarn.js`;else if(this.version==="classic")n="https://classic.yarnpkg.com/latest.js";else if(this.version.match(/^https?:/))n=this.version;else if(this.version.match(/^\.{0,2}[\\/]/)||K.isAbsolute(this.version))n=`file://${K.resolve(this.version)}`;else if(vt.satisfiesWithPrereleases(this.version,">=2.0.0"))n=`https://repo.yarnpkg.com/${this.version}/packages/yarnpkg-cli/bin/yarn.js`;else if(vt.satisfiesWithPrereleases(this.version,"^0.x || ^1.x"))n=`https://github.com/yarnpkg/yarn/releases/download/v${this.version}/yarn-${this.version}.js`;else if(vt.validRange(this.version))n=`https://repo.yarnpkg.com/${await w4e(t,this.version)}/packages/yarnpkg-cli/bin/yarn.js`;else throw new be(`Invalid version descriptor "${this.version}"`);return(await Ge.start({configuration:t,stdout:this.context.stdout,includeLogs:!this.context.quiet},async a=>{let l="file://",c;n.startsWith(l)?(a.reportInfo(0,`Downloading ${ee.pretty(t,n,xi.URL)}`),c=await M.readFilePromise(K.toPortablePath(n.slice(l.length)))):(a.reportInfo(0,`Retrieving ${ee.pretty(t,n,xi.PATH)}`),c=await Xt.get(n,{configuration:t})),await _T(t,null,c,{report:a})})).exitCode()}};hu.paths=[["set","version"]],hu.usage=ve.Usage({description:"lock the Yarn version used by the project",details:"\n      This command will download a specific release of Yarn directly from the Yarn GitHub repository, will store it inside your project, and will change the `yarnPath` settings from your project `.yarnrc.yml` file to point to the new file.\n\n      A very good use case for this command is to enforce the version of Yarn used by the any single member of your team inside a same project - by doing this you ensure that you have control on Yarn upgrades and downgrades (including on your deployment servers), and get rid of most of the headaches related to someone using a slightly different version and getting a different behavior than you.\n\n      The version specifier can be:\n\n      - a tag:\n        - `latest` / `berry` / `stable` -> the most recent stable berry (`>=2.0.0`) release\n        - `canary` -> the most recent canary (release candidate) berry (`>=2.0.0`) release\n        - `classic` -> the most recent classic (`^0.x || ^1.x`) release\n\n      - a semver range (e.g. `2.x`) -> the most recent version satisfying the range (limited to berry releases)\n\n      - a semver version (e.g. `2.4.1`, `1.22.1`)\n\n      - a local file referenced through either a relative or absolute path\n\n      - `self` -> the version used to invoke the command\n    ",examples:[["Download the latest release from the Yarn repository","$0 set version latest"],["Download the latest canary release from the Yarn repository","$0 set version canary"],["Download the latest classic release from the Yarn repository","$0 set version classic"],["Download the most recent Yarn 3 build","$0 set version 3.x"],["Download a specific Yarn 2 build","$0 set version 2.0.0-rc.30"],["Switch back to a specific Yarn 1 release","$0 set version 1.22.1"],["Use a release from the local filesystem","$0 set version ./yarn.cjs"],["Use a release from a URL","$0 set version https://repo.yarnpkg.com/3.1.0/packages/yarnpkg-cli/bin/yarn.js"],["Download the version used to invoke the command","$0 set version self"]]});async function w4e(r,e){let i=(await Xt.get("https://repo.yarnpkg.com/tags",{configuration:r,jsonResponse:!0})).tags.filter(n=>vt.satisfiesWithPrereleases(n,e));if(i.length===0)throw new be(`No matching release found for range ${ee.pretty(r,e,ee.Type.RANGE)}.`);return i[0]}async function jm(r,e){let t=await Xt.get("https://repo.yarnpkg.com/tags",{configuration:r,jsonResponse:!0});if(!t.latest[e])throw new be(`Tag ${ee.pretty(r,e,ee.Type.RANGE)} not found`);return t.latest[e]}async function _T(r,e,t,{report:i}){var h;e===null&&await M.mktempPromise(async p=>{let C=x.join(p,"yarn.cjs");await M.writeFilePromise(C,t);let{stdout:y}=await Cr.execvp(process.execPath,[K.fromPortablePath(C),"--version"],{cwd:p,env:{...process.env,YARN_IGNORE_PATH:"1"}});if(e=y.trim(),!aae.default.valid(e))throw new Error(`Invalid semver version. ${ee.pretty(r,"yarn --version",ee.Type.CODE)} returned:
+${e}`)});let n=(h=r.projectCwd)!=null?h:r.startingCwd,s=x.resolve(n,".yarn/releases"),o=x.resolve(s,`yarn-${e}.cjs`),a=x.relative(r.startingCwd,o),l=x.relative(n,o);i.reportInfo(0,`Saving the new release in ${ee.pretty(r,a,"magenta")}`),await M.removePromise(x.dirname(o)),await M.mkdirPromise(x.dirname(o),{recursive:!0}),await M.writeFilePromise(o,t,{mode:493}),await ye.updateConfiguration(n,{yarnPath:l});let c=await ot.tryFind(n)||new ot;c.packageManager=`yarn@${e&&Ie.isTaggedYarnVersion(e)?e:await jm(r,"stable")}`;let u={};c.exportTo(u);let g=x.join(n,ot.fileName),f=`${JSON.stringify(u,null,c.indent)}
+`;await M.changeFilePromise(g,f,{automaticNewlines:!0})}function Aae(r){return Ct[RI(r)]}var B4e=/## (?<code>YN[0-9]{4}) - `(?<name>[A-Z_]+)`\n\n(?<details>(?:.(?!##))+)/gs;async function Q4e(r){let t=`https://repo.yarnpkg.com/${Ie.isTaggedYarnVersion(Lr)?Lr:await jm(r,"canary")}/packages/gatsby/content/advanced/error-codes.md`,i=await Xt.get(t,{configuration:r});return new Map(Array.from(i.toString().matchAll(B4e),({groups:n})=>{if(!n)throw new Error("Assertion failed: Expected the match to have been successful");let s=Aae(n.code);if(n.name!==s)throw new Error(`Assertion failed: Invalid error code data: Expected "${n.name}" to be named "${s}"`);return[n.code,n.details]}))}var pu=class extends De{constructor(){super(...arguments);this.code=z.String({required:!1,validator:nd(id(),[sd(/^YN[0-9]{4}$/)])});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins);if(typeof this.code<"u"){let i=Aae(this.code),n=ee.pretty(t,i,ee.Type.CODE),s=this.cli.format().header(`${this.code} - ${n}`),a=(await Q4e(t)).get(this.code),l=typeof a<"u"?ee.jsonOrPretty(this.json,t,ee.tuple(ee.Type.MARKDOWN,{text:a,format:this.cli.format(),paragraphs:!0})):`This error code does not have a description.
+
+You can help us by editing this page on GitHub \u{1F642}:
+${ee.jsonOrPretty(this.json,t,ee.tuple(ee.Type.URL,"https://github.com/yarnpkg/berry/blob/master/packages/gatsby/content/advanced/error-codes.md"))}
+`;this.json?this.context.stdout.write(`${JSON.stringify({code:this.code,name:i,details:l})}
+`):this.context.stdout.write(`${s}
+
+${l}
+`)}else{let i={children:Ie.mapAndFilter(Object.entries(Ct),([n,s])=>Number.isNaN(Number(n))?Ie.mapAndFilter.skip:{label:RA(Number(n)),value:ee.tuple(ee.Type.CODE,s)})};_n.emitTree(i,{configuration:t,stdout:this.context.stdout,json:this.json})}}};pu.paths=[["explain"]],pu.usage=ve.Usage({description:"explain an error code",details:`
+      When the code argument is specified, this command prints its name and its details.
+
+      When used without arguments, this command lists all error codes and their names.
+    `,examples:[["Explain an error code","$0 explain YN0006"],["List all error codes","$0 explain"]]});var lae=Pe(yn()),du=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Print versions of a package from the whole project"});this.recursive=z.Boolean("-R,--recursive",!1,{description:"Print information for all packages, including transitive dependencies"});this.extra=z.Array("-X,--extra",[],{description:"An array of requests of extra data provided by plugins"});this.cache=z.Boolean("--cache",!1,{description:"Print information about the cache entry of a package (path, size, checksum)"});this.dependents=z.Boolean("--dependents",!1,{description:"Print all dependents for each matching package"});this.manifest=z.Boolean("--manifest",!1,{description:"Print data obtained by looking at the package archive (license, homepage, ...)"});this.nameOnly=z.Boolean("--name-only",!1,{description:"Only print the name for the matching packages"});this.virtuals=z.Boolean("--virtuals",!1,{description:"Print each instance of the virtual packages"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.patterns=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n&&!this.all)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState();let o=new Set(this.extra);this.cache&&o.add("cache"),this.dependents&&o.add("dependents"),this.manifest&&o.add("manifest");let a=(L,{recursive:H})=>{let j=L.anchoredLocator.locatorHash,$=new Map,V=[j];for(;V.length>0;){let W=V.shift();if($.has(W))continue;let _=i.storedPackages.get(W);if(typeof _>"u")throw new Error("Assertion failed: Expected the package to be registered");if($.set(W,_),P.isVirtualLocator(_)&&V.push(P.devirtualizeLocator(_).locatorHash),!(!H&&W!==j))for(let A of _.dependencies.values()){let ae=i.storedResolutions.get(A.descriptorHash);if(typeof ae>"u")throw new Error("Assertion failed: Expected the resolution to be registered");V.push(ae)}}return $.values()},l=({recursive:L})=>{let H=new Map;for(let j of i.workspaces)for(let $ of a(j,{recursive:L}))H.set($.locatorHash,$);return H.values()},c=({all:L,recursive:H})=>L&&H?i.storedPackages.values():L?l({recursive:H}):a(n,{recursive:H}),u=({all:L,recursive:H})=>{let j=c({all:L,recursive:H}),$=this.patterns.map(_=>{let A=P.parseLocator(_),ae=lae.default.makeRe(P.stringifyIdent(A)),ge=P.isVirtualLocator(A),re=ge?P.devirtualizeLocator(A):A;return O=>{let F=P.stringifyIdent(O);if(!ae.test(F))return!1;if(A.reference==="unknown")return!0;let ue=P.isVirtualLocator(O),he=ue?P.devirtualizeLocator(O):O;return!(ge&&ue&&A.reference!==O.reference||re.reference!==he.reference)}}),V=Ie.sortMap([...j],_=>P.stringifyLocator(_));return{selection:V.filter(_=>$.length===0||$.some(A=>A(_))),sortedLookup:V}},{selection:g,sortedLookup:f}=u({all:this.all,recursive:this.recursive});if(g.length===0)throw new be("No package matched your request");let h=new Map;if(this.dependents)for(let L of f)for(let H of L.dependencies.values()){let j=i.storedResolutions.get(H.descriptorHash);if(typeof j>"u")throw new Error("Assertion failed: Expected the resolution to be registered");Ie.getArrayWithDefault(h,j).push(L)}let p=new Map;for(let L of f){if(!P.isVirtualLocator(L))continue;let H=P.devirtualizeLocator(L);Ie.getArrayWithDefault(p,H.locatorHash).push(L)}let C={},y={children:C},B=t.makeFetcher(),v={project:i,fetcher:B,cache:s,checksums:i.storedChecksums,report:new ti,cacheOptions:{skipIntegrityCheck:!0},skipIntegrityCheck:!0},D=[async(L,H,j)=>{var W,_;if(!H.has("manifest"))return;let $=await B.fetch(L,v),V;try{V=await ot.find($.prefixPath,{baseFs:$.packageFs})}finally{(W=$.releaseFs)==null||W.call($)}j("Manifest",{License:ee.tuple(ee.Type.NO_HINT,V.license),Homepage:ee.tuple(ee.Type.URL,(_=V.raw.homepage)!=null?_:null)})},async(L,H,j)=>{var ae;if(!H.has("cache"))return;let $={mockedPackages:i.disabledLocators,unstablePackages:i.conditionalLocators},V=(ae=i.storedChecksums.get(L.locatorHash))!=null?ae:null,W=s.getLocatorPath(L,V,$),_;if(W!==null)try{_=M.statSync(W)}catch{}let A=typeof _<"u"?[_.size,ee.Type.SIZE]:void 0;j("Cache",{Checksum:ee.tuple(ee.Type.NO_HINT,V),Path:ee.tuple(ee.Type.PATH,W),Size:A})}];for(let L of g){let H=P.isVirtualLocator(L);if(!this.virtuals&&H)continue;let j={},$={value:[L,ee.Type.LOCATOR],children:j};if(C[P.stringifyLocator(L)]=$,this.nameOnly){delete $.children;continue}let V=p.get(L.locatorHash);typeof V<"u"&&(j.Instances={label:"Instances",value:ee.tuple(ee.Type.NUMBER,V.length)}),j.Version={label:"Version",value:ee.tuple(ee.Type.NO_HINT,L.version)};let W=(A,ae)=>{let ge={};if(j[A]=ge,Array.isArray(ae))ge.children=ae.map(re=>({value:re}));else{let re={};ge.children=re;for(let[O,F]of Object.entries(ae))typeof F>"u"||(re[O]={label:O,value:F})}};if(!H){for(let A of D)await A(L,o,W);await t.triggerHook(A=>A.fetchPackageInfo,L,o,W)}L.bin.size>0&&!H&&W("Exported Binaries",[...L.bin.keys()].map(A=>ee.tuple(ee.Type.PATH,A)));let _=h.get(L.locatorHash);typeof _<"u"&&_.length>0&&W("Dependents",_.map(A=>ee.tuple(ee.Type.LOCATOR,A))),L.dependencies.size>0&&!H&&W("Dependencies",[...L.dependencies.values()].map(A=>{var re;let ae=i.storedResolutions.get(A.descriptorHash),ge=typeof ae<"u"&&(re=i.storedPackages.get(ae))!=null?re:null;return ee.tuple(ee.Type.RESOLUTION,{descriptor:A,locator:ge})})),L.peerDependencies.size>0&&H&&W("Peer dependencies",[...L.peerDependencies.values()].map(A=>{var O,F;let ae=L.dependencies.get(A.identHash),ge=typeof ae<"u"&&(O=i.storedResolutions.get(ae.descriptorHash))!=null?O:null,re=ge!==null&&(F=i.storedPackages.get(ge))!=null?F:null;return ee.tuple(ee.Type.RESOLUTION,{descriptor:A,locator:re})}))}_n.emitTree(y,{configuration:t,json:this.json,stdout:this.context.stdout,separators:this.nameOnly?0:2})}};du.paths=[["info"]],du.usage=ve.Usage({description:"see information related to packages",details:"\n      This command prints various information related to the specified packages, accepting glob patterns.\n\n      By default, if the locator reference is missing, Yarn will default to print the information about all the matching direct dependencies of the package for the active workspace. To instead print all versions of the package that are direct dependencies of any of your workspaces, use the `-A,--all` flag. Adding the `-R,--recursive` flag will also report transitive dependencies.\n\n      Some fields will be hidden by default in order to keep the output readable, but can be selectively displayed by using additional options (`--dependents`, `--manifest`, `--virtuals`, ...) described in the option descriptions.\n\n      Note that this command will only print the information directly related to the selected packages - if you wish to know why the package is there in the first place, use `yarn why` which will do just that (it also provides a `-R,--recursive` flag that may be of some help).\n    ",examples:[["Show information about Lodash","$0 info lodash"]]});var DQ=Pe(nc());as();var Cu=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.immutable=z.Boolean("--immutable",{description:"Abort with an error exit code if the lockfile was to be modified"});this.immutableCache=z.Boolean("--immutable-cache",{description:"Abort with an error exit code if the cache folder was to be modified"});this.checkCache=z.Boolean("--check-cache",!1,{description:"Always refetch the packages and ensure that their checksums are consistent"});this.inlineBuilds=z.Boolean("--inline-builds",{description:"Verbosely print the output of the build steps of dependencies"});this.mode=z.String("--mode",{description:"Change what artifacts installs generate",validator:Vi($n)});this.cacheFolder=z.String("--cache-folder",{hidden:!0});this.frozenLockfile=z.Boolean("--frozen-lockfile",{hidden:!0});this.ignoreEngines=z.Boolean("--ignore-engines",{hidden:!0});this.nonInteractive=z.Boolean("--non-interactive",{hidden:!0});this.preferOffline=z.Boolean("--prefer-offline",{hidden:!0});this.production=z.Boolean("--production",{hidden:!0});this.registry=z.String("--registry",{hidden:!0});this.silent=z.Boolean("--silent",{hidden:!0});this.networkTimeout=z.String("--network-timeout",{hidden:!0})}async execute(){var f;let t=await ye.find(this.context.cwd,this.context.plugins);typeof this.inlineBuilds<"u"&&t.useWithSource("<cli>",{enableInlineBuilds:this.inlineBuilds},t.startingCwd,{overwrite:!0});let i=!!process.env.FUNCTION_TARGET||!!process.env.GOOGLE_RUNTIME,n=async(h,{error:p})=>{let C=await Ge.start({configuration:t,stdout:this.context.stdout,includeFooter:!1},async y=>{p?y.reportError(50,h):y.reportWarning(50,h)});return C.hasErrors()?C.exitCode():null};if(typeof this.ignoreEngines<"u"){let h=await n("The --ignore-engines option is deprecated; engine checking isn't a core feature anymore",{error:!DQ.default.VERCEL});if(h!==null)return h}if(typeof this.registry<"u"){let h=await n("The --registry option is deprecated; prefer setting npmRegistryServer in your .yarnrc.yml file",{error:!1});if(h!==null)return h}if(typeof this.preferOffline<"u"){let h=await n("The --prefer-offline flag is deprecated; use the --cached flag with 'yarn add' instead",{error:!DQ.default.VERCEL});if(h!==null)return h}if(typeof this.production<"u"){let h=await n("The --production option is deprecated on 'install'; use 'yarn workspaces focus' instead",{error:!0});if(h!==null)return h}if(typeof this.nonInteractive<"u"){let h=await n("The --non-interactive option is deprecated",{error:!i});if(h!==null)return h}if(typeof this.frozenLockfile<"u"&&(await n("The --frozen-lockfile option is deprecated; use --immutable and/or --immutable-cache instead",{error:!1}),this.immutable=this.frozenLockfile),typeof this.cacheFolder<"u"){let h=await n("The cache-folder option has been deprecated; use rc settings instead",{error:!DQ.default.NETLIFY});if(h!==null)return h}let s=this.mode==="update-lockfile";if(s&&(this.immutable||this.immutableCache))throw new be(`${ee.pretty(t,"--immutable",ee.Type.CODE)} and ${ee.pretty(t,"--immutable-cache",ee.Type.CODE)} cannot be used with ${ee.pretty(t,"--mode=update-lockfile",ee.Type.CODE)}`);let o=((f=this.immutable)!=null?f:t.get("enableImmutableInstalls"))&&!s,a=this.immutableCache&&!s;if(t.projectCwd!==null){let h=await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout,includeFooter:!1},async p=>{await x4e(t,o)&&(p.reportInfo(48,"Automatically fixed merge conflicts \u{1F44D}"),p.reportSeparator())});if(h.hasErrors())return h.exitCode()}if(t.projectCwd!==null&&typeof t.sources.get("nodeLinker")>"u"){let h=t.projectCwd,p;try{p=await M.readFilePromise(x.join(h,xt.lockfile),"utf8")}catch{}if(p!=null&&p.includes("yarn lockfile v1")){let C=await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout,includeFooter:!1},async y=>{y.reportInfo(70,"Migrating from Yarn 1; automatically enabling the compatibility node-modules linker \u{1F44D}"),y.reportSeparator(),t.use("<compat>",{nodeLinker:"node-modules"},h,{overwrite:!0}),await ye.updateConfiguration(h,{nodeLinker:"node-modules"})});if(C.hasErrors())return C.exitCode()}}if(t.projectCwd!==null){let h=await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout,includeFooter:!1},async p=>{var C;(C=ye.telemetry)!=null&&C.isNew&&(p.reportInfo(65,"Yarn will periodically gather anonymous telemetry: https://yarnpkg.com/advanced/telemetry"),p.reportInfo(65,`Run ${ee.pretty(t,"yarn config set --home enableTelemetry 0",ee.Type.CODE)} to disable`),p.reportSeparator())});if(h.hasErrors())return h.exitCode()}let{project:l,workspace:c}=await je.find(t,this.context.cwd),u=await Rt.find(t,{immutable:a,check:this.checkCache});if(!c)throw new ct(l.cwd,this.context.cwd);return await l.restoreInstallState({restoreResolutions:!1}),(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout,includeLogs:!0},async h=>{await l.install({cache:u,report:h,immutable:o,mode:this.mode})})).exitCode()}};Cu.paths=[["install"],ve.Default],Cu.usage=ve.Usage({description:"install the project dependencies",details:`
+      This command sets up your project if needed. The installation is split into four different steps that each have their own characteristics:
+
+      - **Resolution:** First the package manager will resolve your dependencies. The exact way a dependency version is privileged over another isn't standardized outside of the regular semver guarantees. If a package doesn't resolve to what you would expect, check that all dependencies are correctly declared (also check our website for more information: ).
+
+      - **Fetch:** Then we download all the dependencies if needed, and make sure that they're all stored within our cache (check the value of \`cacheFolder\` in \`yarn config\` to see where the cache files are stored).
+
+      - **Link:** Then we send the dependency tree information to internal plugins tasked with writing them on the disk in some form (for example by generating the .pnp.cjs file you might know).
+
+      - **Build:** Once the dependency tree has been written on the disk, the package manager will now be free to run the build scripts for all packages that might need it, in a topological order compatible with the way they depend on one another. See https://yarnpkg.com/advanced/lifecycle-scripts for detail.
+
+      Note that running this command is not part of the recommended workflow. Yarn supports zero-installs, which means that as long as you store your cache and your .pnp.cjs file inside your repository, everything will work without requiring any install right after cloning your repository or switching branches.
+
+      If the \`--immutable\` option is set (defaults to true on CI), Yarn will abort with an error exit code if the lockfile was to be modified (other paths can be added using the \`immutablePatterns\` configuration setting). For backward compatibility we offer an alias under the name of \`--frozen-lockfile\`, but it will be removed in a later release.
+
+      If the \`--immutable-cache\` option is set, Yarn will abort with an error exit code if the cache folder was to be modified (either because files would be added, or because they'd be removed).
+
+      If the \`--check-cache\` option is set, Yarn will always refetch the packages and will ensure that their checksum matches what's 1/ described in the lockfile 2/ inside the existing cache files (if present). This is recommended as part of your CI workflow if you're both following the Zero-Installs model and accepting PRs from third-parties, as they'd otherwise have the ability to alter the checked-in packages before submitting them.
+
+      If the \`--inline-builds\` option is set, Yarn will verbosely print the output of the build steps of your dependencies (instead of writing them into individual files). This is likely useful mostly for debug purposes only when using Docker-like environments.
+
+      If the \`--mode=<mode>\` option is set, Yarn will change which artifacts are generated. The modes currently supported are:
+
+      - \`skip-build\` will not run the build scripts at all. Note that this is different from setting \`enableScripts\` to false because the latter will disable build scripts, and thus affect the content of the artifacts generated on disk, whereas the former will just disable the build step - but not the scripts themselves, which just won't run.
+
+      - \`update-lockfile\` will skip the link step altogether, and only fetch packages that are missing from the lockfile (or that have no associated checksums). This mode is typically used by tools like Renovate or Dependabot to keep a lockfile up-to-date without incurring the full install cost.
+    `,examples:[["Install the project","$0 install"],["Validate a project when using Zero-Installs","$0 install --immutable --immutable-cache"],["Validate a project when using Zero-Installs (slightly safer if you accept external PRs)","$0 install --immutable --immutable-cache --check-cache"]]});var b4e="|||||||",S4e=">>>>>>>",v4e="=======",cae="<<<<<<<";async function x4e(r,e){if(!r.projectCwd)return!1;let t=x.join(r.projectCwd,r.get("lockfileFilename"));if(!await M.existsPromise(t))return!1;let i=await M.readFilePromise(t,"utf8");if(!i.includes(cae))return!1;if(e)throw new at(47,"Cannot autofix a lockfile when running an immutable install");let[n,s]=P4e(i),o,a;try{o=yi(n),a=yi(s)}catch{throw new at(46,"The individual variants of the lockfile failed to parse")}let l={...o,...a};for(let[c,u]of Object.entries(l))typeof u=="string"&&delete l[c];return await M.changeFilePromise(t,wa(l),{automaticNewlines:!0}),!0}function P4e(r){let e=[[],[]],t=r.split(/\r?\n/g),i=!1;for(;t.length>0;){let n=t.shift();if(typeof n>"u")throw new Error("Assertion failed: Some lines should remain");if(n.startsWith(cae)){for(;t.length>0;){let s=t.shift();if(typeof s>"u")throw new Error("Assertion failed: Some lines should remain");if(s===v4e){i=!1;break}else if(i||s.startsWith(b4e)){i=!0;continue}else e[0].push(s)}for(;t.length>0;){let s=t.shift();if(typeof s>"u")throw new Error("Assertion failed: Some lines should remain");if(s.startsWith(S4e))break;e[1].push(s)}}else e[0].push(n),e[1].push(n)}return[e[0].join(`
+`),e[1].join(`
+`)]}var mu=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Link all workspaces belonging to the target project to the current one"});this.private=z.Boolean("-p,--private",!1,{description:"Also link private workspaces belonging to the target project to the current one"});this.relative=z.Boolean("-r,--relative",!1,{description:"Link workspaces using relative paths instead of absolute paths"});this.destination=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState({restoreResolutions:!1});let o=x.resolve(this.context.cwd,K.toPortablePath(this.destination)),a=await ye.find(o,this.context.plugins,{useRc:!1,strict:!1}),{project:l,workspace:c}=await je.find(a,o);if(i.cwd===l.cwd)throw new be("Invalid destination; Can't link the project to itself");if(!c)throw new ct(l.cwd,o);let u=i.topLevelWorkspace,g=[];if(this.all){for(let h of l.workspaces)h.manifest.name&&(!h.manifest.private||this.private)&&g.push(h);if(g.length===0)throw new be("No workspace found to be linked in the target project")}else{if(!c.manifest.name)throw new be("The target workspace doesn't have a name and thus cannot be linked");if(c.manifest.private&&!this.private)throw new be("The target workspace is marked private - use the --private flag to link it anyway");g.push(c)}for(let h of g){let p=P.stringifyIdent(h.locator),C=this.relative?x.relative(i.cwd,h.cwd):h.cwd;u.manifest.resolutions.push({pattern:{descriptor:{fullName:p}},reference:`portal:${C}`})}return(await Ge.start({configuration:t,stdout:this.context.stdout},async h=>{await i.install({cache:s,report:h})})).exitCode()}};mu.paths=[["link"]],mu.usage=ve.Usage({description:"connect the local project to another one",details:"\n      This command will set a new `resolutions` field in the project-level manifest and point it to the workspace at the specified location (even if part of another project).\n    ",examples:[["Register a remote workspace for use in the current project","$0 link ~/ts-loader"],["Register all workspaces from a remote project for use in the current project","$0 link ~/jest --all"]]});var Eu=class extends De{constructor(){super(...arguments);this.args=z.Proxy()}async execute(){return this.cli.run(["exec","node",...this.args])}};Eu.paths=[["node"]],Eu.usage=ve.Usage({description:"run node with the hook already setup",details:`
+      This command simply runs Node. It also makes sure to call it in a way that's compatible with the current project (for example, on PnP projects the environment will be setup in such a way that PnP will be correctly injected into the environment).
+
+      The Node process will use the exact same version of Node as the one used to run Yarn itself, which might be a good way to ensure that your commands always use a consistent Node version.
+    `,examples:[["Run a Node script","$0 node ./my-script.js"]]});var dae=J("os");var uae=J("os");var D4e="https://raw.githubusercontent.com/yarnpkg/berry/master/plugins.yml";async function yu(r){let e=await Xt.get(D4e,{configuration:r});return yi(e.toString())}var Iu=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins);return(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout},async n=>{let s=await yu(t);for(let[o,{experimental:a,...l}]of Object.entries(s)){let c=o;a&&(c+=" [experimental]"),n.reportJson({name:o,experimental:a,...l}),n.reportInfo(null,c)}})).exitCode()}};Iu.paths=[["plugin","list"]],Iu.usage=ve.Usage({category:"Plugin-related commands",description:"list the available official plugins",details:"\n      This command prints the plugins available directly from the Yarn repository. Only those plugins can be referenced by name in `yarn plugin import`.\n    ",examples:[["List the official plugins","$0 plugin list"]]});var k4e=/^[0-9]+$/;function gae(r){return k4e.test(r)?`pull/${r}/head`:r}var R4e=({repository:r,branch:e},t)=>[["git","init",K.fromPortablePath(t)],["git","remote","add","origin",r],["git","fetch","origin","--depth=1",gae(e)],["git","reset","--hard","FETCH_HEAD"]],F4e=({branch:r})=>[["git","fetch","origin","--depth=1",gae(r),"--force"],["git","reset","--hard","FETCH_HEAD"],["git","clean","-dfx"]],N4e=({plugins:r,noMinify:e},t)=>[["yarn","build:cli",...new Array().concat(...r.map(i=>["--plugin",x.resolve(t,i)])),...e?["--no-minify"]:[],"|"]],wu=class extends De{constructor(){super(...arguments);this.installPath=z.String("--path",{description:"The path where the repository should be cloned to"});this.repository=z.String("--repository","https://github.com/yarnpkg/berry.git",{description:"The repository that should be cloned"});this.branch=z.String("--branch","master",{description:"The branch of the repository that should be cloned"});this.plugins=z.Array("--plugin",[],{description:"An array of additional plugins that should be included in the bundle"});this.noMinify=z.Boolean("--no-minify",!1,{description:"Build a bundle for development (debugging) - non-minified and non-mangled"});this.force=z.Boolean("-f,--force",!1,{description:"Always clone the repository instead of trying to fetch the latest commits"});this.skipPlugins=z.Boolean("--skip-plugins",!1,{description:"Skip updating the contrib plugins"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i}=await je.find(t,this.context.cwd),n=typeof this.installPath<"u"?x.resolve(this.context.cwd,K.toPortablePath(this.installPath)):x.resolve(K.toPortablePath((0,uae.tmpdir)()),"yarnpkg-sources",li.makeHash(this.repository).slice(0,6));return(await Ge.start({configuration:t,stdout:this.context.stdout},async o=>{await $T(this,{configuration:t,report:o,target:n}),o.reportSeparator(),o.reportInfo(0,"Building a fresh bundle"),o.reportSeparator(),await qm(N4e(this,n),{configuration:t,context:this.context,target:n}),o.reportSeparator();let a=x.resolve(n,"packages/yarnpkg-cli/bundles/yarn.js"),l=await M.readFilePromise(a);await _T(t,"sources",l,{report:o}),this.skipPlugins||await L4e(this,{project:i,report:o,target:n})})).exitCode()}};wu.paths=[["set","version","from","sources"]],wu.usage=ve.Usage({description:"build Yarn from master",details:`
+      This command will clone the Yarn repository into a temporary folder, then build it. The resulting bundle will then be copied into the local project.
+
+      By default, it also updates all contrib plugins to the same commit the bundle is built from. This behavior can be disabled by using the \`--skip-plugins\` flag.
+    `,examples:[["Build Yarn from master","$0 set version from sources"]]});async function qm(r,{configuration:e,context:t,target:i}){for(let[n,...s]of r){let o=s[s.length-1]==="|";if(o&&s.pop(),o)await Cr.pipevp(n,s,{cwd:i,stdin:t.stdin,stdout:t.stdout,stderr:t.stderr,strict:!0});else{t.stdout.write(`${ee.pretty(e,`  $ ${[n,...s].join(" ")}`,"grey")}
+`);try{await Cr.execvp(n,s,{cwd:i,strict:!0})}catch(a){throw t.stdout.write(a.stdout||a.stack),a}}}}async function $T(r,{configuration:e,report:t,target:i}){let n=!1;if(!r.force&&M.existsSync(x.join(i,".git"))){t.reportInfo(0,"Fetching the latest commits"),t.reportSeparator();try{await qm(F4e(r),{configuration:e,context:r.context,target:i}),n=!0}catch{t.reportSeparator(),t.reportWarning(0,"Repository update failed; we'll try to regenerate it")}}n||(t.reportInfo(0,"Cloning the remote repository"),t.reportSeparator(),await M.removePromise(i),await M.mkdirPromise(i,{recursive:!0}),await qm(R4e(r,i),{configuration:e,context:r.context,target:i}))}async function L4e(r,{project:e,report:t,target:i}){let n=await yu(e.configuration),s=new Set(Object.keys(n));for(let o of e.configuration.plugins.keys())!s.has(o)||await eO(o,r,{project:e,report:t,target:i})}var fae=Pe(Xr()),hae=J("url"),pae=J("vm");var Bu=class extends De{constructor(){super(...arguments);this.name=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins);return(await Ge.start({configuration:t,stdout:this.context.stdout},async n=>{let{project:s}=await je.find(t,this.context.cwd),o,a;if(this.name.match(/^\.{0,2}[\\/]/)||K.isAbsolute(this.name)){let l=x.resolve(this.context.cwd,K.toPortablePath(this.name));n.reportInfo(0,`Reading ${ee.pretty(t,l,ee.Type.PATH)}`),o=x.relative(s.cwd,l),a=await M.readFilePromise(l)}else{let l;if(this.name.match(/^https?:/)){try{new hae.URL(this.name)}catch{throw new at(52,`Plugin specifier "${this.name}" is neither a plugin name nor a valid url`)}o=this.name,l=this.name}else{let c=P.parseLocator(this.name.replace(/^((@yarnpkg\/)?plugin-)?/,"@yarnpkg/plugin-"));if(c.reference!=="unknown"&&!fae.default.valid(c.reference))throw new at(0,"Official plugins only accept strict version references. Use an explicit URL if you wish to download them from another location.");let u=P.stringifyIdent(c),g=await yu(t);if(!Object.prototype.hasOwnProperty.call(g,u))throw new at(51,`Couldn't find a plugin named "${u}" on the remote registry. Note that only the plugins referenced on our website (https://github.com/yarnpkg/berry/blob/master/plugins.yml) can be referenced by their name; any other plugin will have to be referenced through its public url (for example https://github.com/yarnpkg/berry/raw/master/packages/plugin-typescript/bin/%40yarnpkg/plugin-typescript.js).`);o=u,l=g[u].url,c.reference!=="unknown"?l=l.replace(/\/master\//,`/${u}/${c.reference}/`):Lr!==null&&(l=l.replace(/\/master\//,`/@yarnpkg/cli/${Lr}/`))}n.reportInfo(0,`Downloading ${ee.pretty(t,l,"green")}`),a=await Xt.get(l,{configuration:t})}await tO(o,a,{project:s,report:n})})).exitCode()}};Bu.paths=[["plugin","import"]],Bu.usage=ve.Usage({category:"Plugin-related commands",description:"download a plugin",details:`
+      This command downloads the specified plugin from its remote location and updates the configuration to reference it in further CLI invocations.
+
+      Three types of plugin references are accepted:
+
+      - If the plugin is stored within the Yarn repository, it can be referenced by name.
+      - Third-party plugins can be referenced directly through their public urls.
+      - Local plugins can be referenced by their path on the disk.
+
+      Plugins cannot be downloaded from the npm registry, and aren't allowed to have dependencies (they need to be bundled into a single file, possibly thanks to the \`@yarnpkg/builder\` package).
+    `,examples:[['Download and activate the "@yarnpkg/plugin-exec" plugin',"$0 plugin import @yarnpkg/plugin-exec"],['Download and activate the "@yarnpkg/plugin-exec" plugin (shorthand)',"$0 plugin import exec"],["Download and activate a community plugin","$0 plugin import https://example.org/path/to/plugin.js"],["Activate a local plugin","$0 plugin import ./path/to/plugin.js"]]});async function tO(r,e,{project:t,report:i}){let{configuration:n}=t,s={},o={exports:s};(0,pae.runInNewContext)(e.toString(),{module:o,exports:s});let a=o.exports.name,l=`.yarn/plugins/${a}.cjs`,c=x.resolve(t.cwd,l);i.reportInfo(0,`Saving the new plugin in ${ee.pretty(n,l,"magenta")}`),await M.mkdirPromise(x.dirname(c),{recursive:!0}),await M.writeFilePromise(c,e);let u={path:l,spec:r};await ye.updateConfiguration(t.cwd,g=>{let f=[],h=!1;for(let p of g.plugins||[]){let C=typeof p!="string"?p.path:p,y=x.resolve(t.cwd,K.toPortablePath(C)),{name:B}=Ie.dynamicRequire(y);B!==a?f.push(p):(f.push(u),h=!0)}return h||f.push(u),{...g,plugins:f}})}var T4e=({pluginName:r,noMinify:e},t)=>[["yarn",`build:${r}`,...e?["--no-minify"]:[],"|"]],Qu=class extends De{constructor(){super(...arguments);this.installPath=z.String("--path",{description:"The path where the repository should be cloned to"});this.repository=z.String("--repository","https://github.com/yarnpkg/berry.git",{description:"The repository that should be cloned"});this.branch=z.String("--branch","master",{description:"The branch of the repository that should be cloned"});this.noMinify=z.Boolean("--no-minify",!1,{description:"Build a plugin for development (debugging) - non-minified and non-mangled"});this.force=z.Boolean("-f,--force",!1,{description:"Always clone the repository instead of trying to fetch the latest commits"});this.name=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=typeof this.installPath<"u"?x.resolve(this.context.cwd,K.toPortablePath(this.installPath)):x.resolve(K.toPortablePath((0,dae.tmpdir)()),"yarnpkg-sources",li.makeHash(this.repository).slice(0,6));return(await Ge.start({configuration:t,stdout:this.context.stdout},async s=>{let{project:o}=await je.find(t,this.context.cwd),a=P.parseIdent(this.name.replace(/^((@yarnpkg\/)?plugin-)?/,"@yarnpkg/plugin-")),l=P.stringifyIdent(a),c=await yu(t);if(!Object.prototype.hasOwnProperty.call(c,l))throw new at(51,`Couldn't find a plugin named "${l}" on the remote registry. Note that only the plugins referenced on our website (https://github.com/yarnpkg/berry/blob/master/plugins.yml) can be built and imported from sources.`);let u=l;await $T(this,{configuration:t,report:s,target:i}),await eO(u,this,{project:o,report:s,target:i})})).exitCode()}};Qu.paths=[["plugin","import","from","sources"]],Qu.usage=ve.Usage({category:"Plugin-related commands",description:"build a plugin from sources",details:`
+      This command clones the Yarn repository into a temporary folder, builds the specified contrib plugin and updates the configuration to reference it in further CLI invocations.
+
+      The plugins can be referenced by their short name if sourced from the official Yarn repository.
+    `,examples:[['Build and activate the "@yarnpkg/plugin-exec" plugin',"$0 plugin import from sources @yarnpkg/plugin-exec"],['Build and activate the "@yarnpkg/plugin-exec" plugin (shorthand)',"$0 plugin import from sources exec"]]});async function eO(r,{context:e,noMinify:t},{project:i,report:n,target:s}){let o=r.replace(/@yarnpkg\//,""),{configuration:a}=i;n.reportSeparator(),n.reportInfo(0,`Building a fresh ${o}`),n.reportSeparator(),await qm(T4e({pluginName:o,noMinify:t},s),{configuration:a,context:e,target:s}),n.reportSeparator();let l=x.resolve(s,`packages/${o}/bundles/${r}.js`),c=await M.readFilePromise(l);await tO(r,c,{project:i,report:n})}var bu=class extends De{constructor(){super(...arguments);this.name=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i}=await je.find(t,this.context.cwd);return(await Ge.start({configuration:t,stdout:this.context.stdout},async s=>{let o=this.name,a=P.parseIdent(o);if(!t.plugins.has(o))throw new be(`${P.prettyIdent(t,a)} isn't referenced by the current configuration`);let l=`.yarn/plugins/${o}.cjs`,c=x.resolve(i.cwd,l);M.existsSync(c)&&(s.reportInfo(0,`Removing ${ee.pretty(t,l,ee.Type.PATH)}...`),await M.removePromise(c)),s.reportInfo(0,"Updating the configuration..."),await ye.updateConfiguration(i.cwd,u=>{if(!Array.isArray(u.plugins))return u;let g=u.plugins.filter(f=>f.path!==l);return u.plugins.length===g.length?u:{...u,plugins:g}})})).exitCode()}};bu.paths=[["plugin","remove"]],bu.usage=ve.Usage({category:"Plugin-related commands",description:"remove a plugin",details:`
+      This command deletes the specified plugin from the .yarn/plugins folder and removes it from the configuration.
+
+      **Note:** The plugins have to be referenced by their name property, which can be obtained using the \`yarn plugin runtime\` command. Shorthands are not allowed.
+   `,examples:[["Remove a plugin imported from the Yarn repository","$0 plugin remove @yarnpkg/plugin-typescript"],["Remove a plugin imported from a local file","$0 plugin remove my-local-plugin"]]});var Su=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins);return(await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout},async n=>{for(let s of t.plugins.keys()){let o=this.context.plugins.plugins.has(s),a=s;o&&(a+=" [builtin]"),n.reportJson({name:s,builtin:o}),n.reportInfo(null,`${a}`)}})).exitCode()}};Su.paths=[["plugin","runtime"]],Su.usage=ve.Usage({category:"Plugin-related commands",description:"list the active plugins",details:`
+      This command prints the currently active plugins. Will be displayed both builtin plugins and external plugins.
+    `,examples:[["List the currently active plugins","$0 plugin runtime"]]});var vu=class extends De{constructor(){super(...arguments);this.idents=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);let o=new Set;for(let l of this.idents)o.add(P.parseIdent(l).identHash);if(await i.restoreInstallState({restoreResolutions:!1}),await i.resolveEverything({cache:s,report:new ti}),o.size>0)for(let l of i.storedPackages.values())o.has(l.identHash)&&i.storedBuildState.delete(l.locatorHash);else i.storedBuildState.clear();return(await Ge.start({configuration:t,stdout:this.context.stdout,includeLogs:!this.context.quiet},async l=>{await i.install({cache:s,report:l})})).exitCode()}};vu.paths=[["rebuild"]],vu.usage=ve.Usage({description:"rebuild the project's native packages",details:`
+      This command will automatically cause Yarn to forget about previous compilations of the given packages and to run them again.
+
+      Note that while Yarn forgets the compilation, the previous artifacts aren't erased from the filesystem and may affect the next builds (in good or bad). To avoid this, you may remove the .yarn/unplugged folder, or any other relevant location where packages might have been stored (Yarn may offer a way to do that automatically in the future).
+
+      By default all packages will be rebuilt, but you can filter the list by specifying the names of the packages you want to clear from memory.
+    `,examples:[["Rebuild all packages","$0 rebuild"],["Rebuild fsevents only","$0 rebuild fsevents"]]});var rO=Pe(yn());as();var xu=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Apply the operation to all workspaces from the current project"});this.mode=z.String("--mode",{description:"Change what artifacts installs generate",validator:Vi($n)});this.patterns=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState({restoreResolutions:!1});let o=this.all?i.workspaces:[n],a=["dependencies","devDependencies","peerDependencies"],l=[],c=!1,u=[];for(let p of this.patterns){let C=!1,y=P.parseIdent(p);for(let B of o){let v=[...B.manifest.peerDependenciesMeta.keys()];for(let D of(0,rO.default)(v,p))B.manifest.peerDependenciesMeta.delete(D),c=!0,C=!0;for(let D of a){let L=B.manifest.getForScope(D),H=[...L.values()].map(j=>P.stringifyIdent(j));for(let j of(0,rO.default)(H,P.stringifyIdent(y))){let{identHash:$}=P.parseIdent(j),V=L.get($);if(typeof V>"u")throw new Error("Assertion failed: Expected the descriptor to be registered");B.manifest[D].delete($),u.push([B,D,V]),c=!0,C=!0}}}C||l.push(p)}let g=l.length>1?"Patterns":"Pattern",f=l.length>1?"don't":"doesn't",h=this.all?"any":"this";if(l.length>0)throw new be(`${g} ${ee.prettyList(t,l,xi.CODE)} ${f} match any packages referenced by ${h} workspace`);return c?(await t.triggerMultipleHooks(C=>C.afterWorkspaceDependencyRemoval,u),(await Ge.start({configuration:t,stdout:this.context.stdout},async C=>{await i.install({cache:s,report:C,mode:this.mode})})).exitCode()):0}};xu.paths=[["remove"]],xu.usage=ve.Usage({description:"remove dependencies from the project",details:`
+      This command will remove the packages matching the specified patterns from the current workspace.
+
+      If the \`--mode=<mode>\` option is set, Yarn will change which artifacts are generated. The modes currently supported are:
+
+      - \`skip-build\` will not run the build scripts at all. Note that this is different from setting \`enableScripts\` to false because the latter will disable build scripts, and thus affect the content of the artifacts generated on disk, whereas the former will just disable the build step - but not the scripts themselves, which just won't run.
+
+      - \`update-lockfile\` will skip the link step altogether, and only fetch packages that are missing from the lockfile (or that have no associated checksums). This mode is typically used by tools like Renovate or Dependabot to keep a lockfile up-to-date without incurring the full install cost.
+
+      This command accepts glob patterns as arguments (if valid Idents and supported by [micromatch](https://github.com/micromatch/micromatch)). Make sure to escape the patterns, to prevent your own shell from trying to expand them.
+    `,examples:[["Remove a dependency from the current project","$0 remove lodash"],["Remove a dependency from all workspaces at once","$0 remove lodash --all"],["Remove all dependencies starting with `eslint-`","$0 remove 'eslint-*'"],["Remove all dependencies with the `@babel` scope","$0 remove '@babel/*'"],["Remove all dependencies matching `react-dom` or `react-helmet`","$0 remove 'react-{dom,helmet}'"]]});var Cae=J("util"),Vh=class extends De{async execute(){let e=await ye.find(this.context.cwd,this.context.plugins),{project:t,workspace:i}=await je.find(e,this.context.cwd);if(!i)throw new ct(t.cwd,this.context.cwd);return(await Ge.start({configuration:e,stdout:this.context.stdout},async s=>{let o=i.manifest.scripts,a=Ie.sortMap(o.keys(),u=>u),l={breakLength:1/0,colors:e.get("enableColors"),maxArrayLength:2},c=a.reduce((u,g)=>Math.max(u,g.length),0);for(let[u,g]of o.entries())s.reportInfo(null,`${u.padEnd(c," ")}   ${(0,Cae.inspect)(g,l)}`)})).exitCode()}};Vh.paths=[["run"]];var Pu=class extends De{constructor(){super(...arguments);this.inspect=z.String("--inspect",!1,{tolerateBoolean:!0,description:"Forwarded to the underlying Node process when executing a binary"});this.inspectBrk=z.String("--inspect-brk",!1,{tolerateBoolean:!0,description:"Forwarded to the underlying Node process when executing a binary"});this.topLevel=z.Boolean("-T,--top-level",!1,{description:"Check the root workspace for scripts and/or binaries instead of the current one"});this.binariesOnly=z.Boolean("-B,--binaries-only",!1,{description:"Ignore any user defined scripts and only check for binaries"});this.silent=z.Boolean("--silent",{hidden:!0});this.scriptName=z.String();this.args=z.Proxy()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n,locator:s}=await je.find(t,this.context.cwd);await i.restoreInstallState();let o=this.topLevel?i.topLevelWorkspace.anchoredLocator:s;if(!this.binariesOnly&&await Wt.hasPackageScript(o,this.scriptName,{project:i}))return await Wt.executePackageScript(o,this.scriptName,this.args,{project:i,stdin:this.context.stdin,stdout:this.context.stdout,stderr:this.context.stderr});let a=await Wt.getPackageAccessibleBinaries(o,{project:i});if(a.get(this.scriptName)){let c=[];return this.inspect&&(typeof this.inspect=="string"?c.push(`--inspect=${this.inspect}`):c.push("--inspect")),this.inspectBrk&&(typeof this.inspectBrk=="string"?c.push(`--inspect-brk=${this.inspectBrk}`):c.push("--inspect-brk")),await Wt.executePackageAccessibleBinary(o,this.scriptName,this.args,{cwd:this.context.cwd,project:i,stdin:this.context.stdin,stdout:this.context.stdout,stderr:this.context.stderr,nodeArgs:c,packageAccessibleBinaries:a})}if(!this.topLevel&&!this.binariesOnly&&n&&this.scriptName.includes(":")){let u=(await Promise.all(i.workspaces.map(async g=>g.manifest.scripts.has(this.scriptName)?g:null))).filter(g=>g!==null);if(u.length===1)return await Wt.executeWorkspaceScript(u[0],this.scriptName,this.args,{stdin:this.context.stdin,stdout:this.context.stdout,stderr:this.context.stderr})}if(this.topLevel)throw this.scriptName==="node-gyp"?new be(`Couldn't find a script name "${this.scriptName}" in the top-level (used by ${P.prettyLocator(t,s)}). This typically happens because some package depends on "node-gyp" to build itself, but didn't list it in their dependencies. To fix that, please run "yarn add node-gyp" into your top-level workspace. You also can open an issue on the repository of the specified package to suggest them to use an optional peer dependency.`):new be(`Couldn't find a script name "${this.scriptName}" in the top-level (used by ${P.prettyLocator(t,s)}).`);{if(this.scriptName==="global")throw new be("The 'yarn global' commands have been removed in 2.x - consider using 'yarn dlx' or a third-party plugin instead");let c=[this.scriptName].concat(this.args);for(let[u,g]of Qh)for(let f of g)if(c.length>=f.length&&JSON.stringify(c.slice(0,f.length))===JSON.stringify(f))throw new be(`Couldn't find a script named "${this.scriptName}", but a matching command can be found in the ${u} plugin. You can install it with "yarn plugin import ${u}".`);throw new be(`Couldn't find a script named "${this.scriptName}".`)}}};Pu.paths=[["run"]],Pu.usage=ve.Usage({description:"run a script defined in the package.json",details:`
+      This command will run a tool. The exact tool that will be executed will depend on the current state of your workspace:
+
+      - If the \`scripts\` field from your local package.json contains a matching script name, its definition will get executed.
+
+      - Otherwise, if one of the local workspace's dependencies exposes a binary with a matching name, this binary will get executed.
+
+      - Otherwise, if the specified name contains a colon character and if one of the workspaces in the project contains exactly one script with a matching name, then this script will get executed.
+
+      Whatever happens, the cwd of the spawned process will be the workspace that declares the script (which makes it possible to call commands cross-workspaces using the third syntax).
+    `,examples:[["Run the tests from the local workspace","$0 run test"],['Same thing, but without the "run" keyword',"$0 test"],["Inspect Webpack while running","$0 run --inspect-brk webpack"]]});var Du=class extends De{constructor(){super(...arguments);this.save=z.Boolean("-s,--save",!1,{description:"Persist the resolution inside the top-level manifest"});this.descriptor=z.String();this.resolution=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(await i.restoreInstallState({restoreResolutions:!1}),!n)throw new ct(i.cwd,this.context.cwd);let o=P.parseDescriptor(this.descriptor,!0),a=P.makeDescriptor(o,this.resolution);return i.storedDescriptors.set(o.descriptorHash,o),i.storedDescriptors.set(a.descriptorHash,a),i.resolutionAliases.set(o.descriptorHash,a.descriptorHash),(await Ge.start({configuration:t,stdout:this.context.stdout},async c=>{await i.install({cache:s,report:c})})).exitCode()}};Du.paths=[["set","resolution"]],Du.usage=ve.Usage({description:"enforce a package resolution",details:'\n      This command updates the resolution table so that `descriptor` is resolved by `resolution`.\n\n      Note that by default this command only affect the current resolution table - meaning that this "manual override" will disappear if you remove the lockfile, or if the package disappear from the table. If you wish to make the enforced resolution persist whatever happens, add the `-s,--save` flag which will also edit the `resolutions` field from your top-level manifest.\n\n      Note that no attempt is made at validating that `resolution` is a valid resolution entry for `descriptor`.\n    ',examples:[["Force all instances of lodash@npm:^1.2.3 to resolve to 1.5.0","$0 set resolution lodash@npm:^1.2.3 1.5.0"]]});var mae=Pe(yn()),ku=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Unlink all workspaces belonging to the target project from the current one"});this.leadingArguments=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);let o=i.topLevelWorkspace,a=new Set;if(this.leadingArguments.length===0&&this.all)for(let{pattern:c,reference:u}of o.manifest.resolutions)u.startsWith("portal:")&&a.add(c.descriptor.fullName);if(this.leadingArguments.length>0)for(let c of this.leadingArguments){let u=x.resolve(this.context.cwd,K.toPortablePath(c));if(Ie.isPathLike(c)){let g=await ye.find(u,this.context.plugins,{useRc:!1,strict:!1}),{project:f,workspace:h}=await je.find(g,u);if(!h)throw new ct(f.cwd,u);if(this.all){for(let p of f.workspaces)p.manifest.name&&a.add(P.stringifyIdent(p.locator));if(a.size===0)throw new be("No workspace found to be unlinked in the target project")}else{if(!h.manifest.name)throw new be("The target workspace doesn't have a name and thus cannot be unlinked");a.add(P.stringifyIdent(h.locator))}}else{let g=[...o.manifest.resolutions.map(({pattern:f})=>f.descriptor.fullName)];for(let f of(0,mae.default)(g,c))a.add(f)}}return o.manifest.resolutions=o.manifest.resolutions.filter(({pattern:c})=>!a.has(c.descriptor.fullName)),(await Ge.start({configuration:t,stdout:this.context.stdout},async c=>{await i.install({cache:s,report:c})})).exitCode()}};ku.paths=[["unlink"]],ku.usage=ve.Usage({description:"disconnect the local project from another one",details:`
+      This command will remove any resolutions in the project-level manifest that would have been added via a yarn link with similar arguments.
+    `,examples:[["Unregister a remote workspace in the current project","$0 unlink ~/ts-loader"],["Unregister all workspaces from a remote project in the current project","$0 unlink ~/jest --all"],["Unregister all previously linked workspaces","$0 unlink --all"],["Unregister all workspaces matching a glob","$0 unlink '@babel/*' 'pkg-{a,b}'"]]});var Eae=Pe(Om()),iO=Pe(yn());as();var Cl=class extends De{constructor(){super(...arguments);this.interactive=z.Boolean("-i,--interactive",{description:"Offer various choices, depending on the detected upgrade paths"});this.exact=z.Boolean("-E,--exact",!1,{description:"Don't use any semver modifier on the resolved range"});this.tilde=z.Boolean("-T,--tilde",!1,{description:"Use the `~` semver modifier on the resolved range"});this.caret=z.Boolean("-C,--caret",!1,{description:"Use the `^` semver modifier on the resolved range"});this.recursive=z.Boolean("-R,--recursive",!1,{description:"Resolve again ALL resolutions for those packages"});this.mode=z.String("--mode",{description:"Change what artifacts installs generate",validator:Vi($n)});this.patterns=z.Rest()}async execute(){return this.recursive?await this.executeUpRecursive():await this.executeUpClassic()}async executeUpRecursive(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState({restoreResolutions:!1});let o=[...i.storedDescriptors.values()],a=o.map(g=>P.stringifyIdent(g)),l=new Set;for(let g of this.patterns){if(P.parseDescriptor(g).range!=="unknown")throw new be("Ranges aren't allowed when using --recursive");for(let f of(0,iO.default)(a,g)){let h=P.parseIdent(f);l.add(h.identHash)}}let c=o.filter(g=>l.has(g.identHash));for(let g of c)i.storedDescriptors.delete(g.descriptorHash),i.storedResolutions.delete(g.descriptorHash);return(await Ge.start({configuration:t,stdout:this.context.stdout},async g=>{await i.install({cache:s,report:g})})).exitCode()}async executeUpClassic(){var y;let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState({restoreResolutions:!1});let o=(y=this.interactive)!=null?y:t.get("preferInteractive"),a=Km(this,i),l=o?["keep","reuse","project","latest"]:["project","latest"],c=[],u=[];for(let B of this.patterns){let v=!1,D=P.parseDescriptor(B);for(let L of i.workspaces)for(let H of["dependencies","devDependencies"]){let $=[...L.manifest.getForScope(H).values()].map(V=>P.stringifyIdent(V));for(let V of(0,iO.default)($,P.stringifyIdent(D))){let W=P.parseIdent(V),_=L.manifest[H].get(W.identHash);if(typeof _>"u")throw new Error("Assertion failed: Expected the descriptor to be registered");let A=P.makeDescriptor(W,D.range);c.push(Promise.resolve().then(async()=>[L,H,_,await Um(A,{project:i,workspace:L,cache:s,target:H,modifier:a,strategies:l})])),v=!0}}v||u.push(B)}if(u.length>1)throw new be(`Patterns ${ee.prettyList(t,u,xi.CODE)} don't match any packages referenced by any workspace`);if(u.length>0)throw new be(`Pattern ${ee.prettyList(t,u,xi.CODE)} doesn't match any packages referenced by any workspace`);let g=await Promise.all(c),f=await ra.start({configuration:t,stdout:this.context.stdout,suggestInstall:!1},async B=>{for(let[,,v,{suggestions:D,rejections:L}]of g){let H=D.filter(j=>j.descriptor!==null);if(H.length===0){let[j]=L;if(typeof j>"u")throw new Error("Assertion failed: Expected an error to have been set");let $=this.cli.error(j);i.configuration.get("enableNetwork")?B.reportError(27,`${P.prettyDescriptor(t,v)} can't be resolved to a satisfying range
+
+${$}`):B.reportError(27,`${P.prettyDescriptor(t,v)} can't be resolved to a satisfying range (note: network resolution has been disabled)
+
+${$}`)}else H.length>1&&!o&&B.reportError(27,`${P.prettyDescriptor(t,v)} has multiple possible upgrade strategies; use -i to disambiguate manually`)}});if(f.hasErrors())return f.exitCode();let h=!1,p=[];for(let[B,v,,{suggestions:D}]of g){let L,H=D.filter(W=>W.descriptor!==null),j=H[0].descriptor,$=H.every(W=>P.areDescriptorsEqual(W.descriptor,j));H.length===1||$?L=j:(h=!0,{answer:L}=await(0,Eae.prompt)({type:"select",name:"answer",message:`Which range to you want to use in ${P.prettyWorkspace(t,B)} \u276F ${v}?`,choices:D.map(({descriptor:W,name:_,reason:A})=>W?{name:_,hint:A,descriptor:W}:{name:_,hint:A,disabled:!0}),onCancel:()=>process.exit(130),result(W){return this.find(W,"descriptor")},stdin:this.context.stdin,stdout:this.context.stdout}));let V=B.manifest[v].get(L.identHash);if(typeof V>"u")throw new Error("Assertion failed: This descriptor should have a matching entry");if(V.descriptorHash!==L.descriptorHash)B.manifest[v].set(L.identHash,L),p.push([B,v,V,L]);else{let W=t.makeResolver(),_={project:i,resolver:W},A=W.bindDescriptor(V,B.anchoredLocator,_);i.forgetResolution(A)}}return await t.triggerMultipleHooks(B=>B.afterWorkspaceDependencyReplacement,p),h&&this.context.stdout.write(`
+`),(await Ge.start({configuration:t,stdout:this.context.stdout},async B=>{await i.install({cache:s,report:B,mode:this.mode})})).exitCode()}};Cl.paths=[["up"]],Cl.usage=ve.Usage({description:"upgrade dependencies across the project",details:"\n      This command upgrades the packages matching the list of specified patterns to their latest available version across the whole project (regardless of whether they're part of `dependencies` or `devDependencies` - `peerDependencies` won't be affected). This is a project-wide command: all workspaces will be upgraded in the process.\n\n      If `-R,--recursive` is set the command will change behavior and no other switch will be allowed. When operating under this mode `yarn up` will force all ranges matching the selected packages to be resolved again (often to the highest available versions) before being stored in the lockfile. It however won't touch your manifests anymore, so depending on your needs you might want to run both `yarn up` and `yarn up -R` to cover all bases.\n\n      If `-i,--interactive` is set (or if the `preferInteractive` settings is toggled on) the command will offer various choices, depending on the detected upgrade paths. Some upgrades require this flag in order to resolve ambiguities.\n\n      The, `-C,--caret`, `-E,--exact` and  `-T,--tilde` options have the same meaning as in the `add` command (they change the modifier used when the range is missing or a tag, and are ignored when the range is explicitly set).\n\n      If the `--mode=<mode>` option is set, Yarn will change which artifacts are generated. The modes currently supported are:\n\n      - `skip-build` will not run the build scripts at all. Note that this is different from setting `enableScripts` to false because the latter will disable build scripts, and thus affect the content of the artifacts generated on disk, whereas the former will just disable the build step - but not the scripts themselves, which just won't run.\n\n      - `update-lockfile` will skip the link step altogether, and only fetch packages that are missing from the lockfile (or that have no associated checksums). This mode is typically used by tools like Renovate or Dependabot to keep a lockfile up-to-date without incurring the full install cost.\n\n      Generally you can see `yarn up` as a counterpart to what was `yarn upgrade --latest` in Yarn 1 (ie it ignores the ranges previously listed in your manifests), but unlike `yarn upgrade` which only upgraded dependencies in the current workspace, `yarn up` will upgrade all workspaces at the same time.\n\n      This command accepts glob patterns as arguments (if valid Descriptors and supported by [micromatch](https://github.com/micromatch/micromatch)). Make sure to escape the patterns, to prevent your own shell from trying to expand them.\n\n      **Note:** The ranges have to be static, only the package scopes and names can contain glob patterns.\n    ",examples:[["Upgrade all instances of lodash to the latest release","$0 up lodash"],["Upgrade all instances of lodash to the latest release, but ask confirmation for each","$0 up lodash -i"],["Upgrade all instances of lodash to 1.2.3","$0 up lodash@1.2.3"],["Upgrade all instances of packages with the `@babel` scope to the latest release","$0 up '@babel/*'"],["Upgrade all instances of packages containing the word `jest` to the latest release","$0 up '*jest*'"],["Upgrade all instances of packages with the `@babel` scope to 7.0.0","$0 up '@babel/*@7.0.0'"]]}),Cl.schema=[av("recursive",sc.Forbids,["interactive","exact","tilde","caret"],{ignore:[void 0,!1]})];var Ru=class extends De{constructor(){super(...arguments);this.recursive=z.Boolean("-R,--recursive",!1,{description:"List, for each workspace, what are all the paths that lead to the dependency"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.peers=z.Boolean("--peers",!1,{description:"Also print the peer dependencies that match the specified name"});this.package=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState();let s=P.parseIdent(this.package).identHash,o=this.recursive?M4e(i,s,{configuration:t,peers:this.peers}):O4e(i,s,{configuration:t,peers:this.peers});_n.emitTree(o,{configuration:t,stdout:this.context.stdout,json:this.json,separators:1})}};Ru.paths=[["why"]],Ru.usage=ve.Usage({description:"display the reason why a package is needed",details:`
+      This command prints the exact reasons why a package appears in the dependency tree.
+
+      If \`-R,--recursive\` is set, the listing will go in depth and will list, for each workspaces, what are all the paths that lead to the dependency. Note that the display is somewhat optimized in that it will not print the package listing twice for a single package, so if you see a leaf named "Foo" when looking for "Bar", it means that "Foo" already got printed higher in the tree.
+    `,examples:[["Explain why lodash is used in your project","$0 why lodash"]]});function O4e(r,e,{configuration:t,peers:i}){let n=Ie.sortMap(r.storedPackages.values(),a=>P.stringifyLocator(a)),s={},o={children:s};for(let a of n){let l={};for(let u of a.dependencies.values()){if(!i&&a.peerDependencies.has(u.identHash))continue;let g=r.storedResolutions.get(u.descriptorHash);if(!g)throw new Error("Assertion failed: The resolution should have been registered");let f=r.storedPackages.get(g);if(!f)throw new Error("Assertion failed: The package should have been registered");if(f.identHash!==e)continue;{let p=P.stringifyLocator(a);s[p]={value:[a,ee.Type.LOCATOR],children:l}}let h=P.stringifyLocator(f);l[h]={value:[{descriptor:u,locator:f},ee.Type.DEPENDENT]}}}return o}function M4e(r,e,{configuration:t,peers:i}){let n=Ie.sortMap(r.workspaces,f=>P.stringifyLocator(f.anchoredLocator)),s=new Set,o=new Set,a=f=>{if(s.has(f.locatorHash))return 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RQ=class{supports(e,t){return Zh(e.reference)}getLocalPath(e,t){return null}async fetch(e,t){let i=t.checksums.get(e.locatorHash)||null,n=uO(e),s=new Map(t.checksums);s.set(n.locatorHash,i);let o={...t,checksums:s},a=await this.downloadHosted(n,o);if(a!==null)return a;let[l,c,u]=await t.cache.fetchPackageFromCache(e,i,{onHit:()=>t.report.reportCacheHit(e),onMiss:()=>t.report.reportCacheMiss(e,`${P.prettyLocator(t.project.configuration,e)} can't be found in the cache and will be fetched from the remote repository`),loader:()=>this.cloneFromRemote(n,o),skipIntegrityCheck:t.skipIntegrityCheck,...t.cacheOptions});return{packageFs:l,releaseFs:c,prefixPath:P.getIdentVendorPath(e),checksum:u}}async downloadHosted(e,t){return t.project.configuration.reduceHook(i=>i.fetchHostedRepository,null,e,t)}async cloneFromRemote(e,t){let i=await fO(e.reference,t.project.configuration),n=Jm(e.reference),s=x.join(i,"package.tgz");await 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By default Yarn will use the refs specified by the `changesetBaseRefs` configuration option.\n\n      - If `-R,--recursive` is set, Yarn will find workspaces to run the command on by recursively evaluating `dependencies` and `devDependencies` fields, instead of looking at the `workspaces` fields.\n\n      - If `--no-private` is set, Yarn will not list any workspaces that have the `private` field set to `true`.\n\n      - If both the `-v,--verbose` and `--json` options are set, Yarn will also return the cross-dependencies between each workspaces (useful when you wish to automatically generate Buck / Bazel rules).\n    "});var Nu=class extends De{constructor(){super(...arguments);this.workspaceName=z.String();this.commandName=z.String();this.args=z.Proxy()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);let s=i.workspaces,o=new Map(s.map(l=>[P.stringifyIdent(l.locator),l])),a=o.get(this.workspaceName);if(a===void 0){let l=Array.from(o.keys()).sort();throw new be(`Workspace '${this.workspaceName}' not found. Did you mean any of the following:
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+  - `)}?`)}return this.cli.run([this.commandName,...this.args],{cwd:a.cwd})}};Nu.paths=[["workspace"]],Nu.usage=ve.Usage({category:"Workspace-related commands",description:"run a command within the specified workspace",details:`
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EO>"u"&&(EO=J("zlib").brotliDecompressSync(Buffer.from("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","base64")).toString()),EO}var Wae=new Map([[P.makeIdent(null,"fsevents").identHash,jae],[P.makeIdent(null,"resolve").identHash,qae],[P.makeIdent(null,"typescript").identHash,Jae]]),a3e={hooks:{registerPackageExtensions:async(r,e)=>{for(let[t,i]of dO)e(P.parseDescriptor(t,!0),i)},getBuiltinPatch:async(r,e)=>{var s;let t="compat/";if(!e.startsWith(t))return;let i=P.parseIdent(e.slice(t.length)),n=(s=Wae.get(i.identHash))==null?void 0:s();return typeof n<"u"?n:null},reduceDependency:async(r,e,t,i)=>typeof Wae.get(r.identHash)>"u"?r:P.makeDescriptor(r,P.makeRange({protocol:"patch:",source:P.stringifyDescriptor(r),selector:`~builtin<compat/${P.stringifyIdent(r)}>`,params:null}))}},A3e=a3e;var yO={};ut(yO,{default:()=>c3e});var _h=class extends De{constructor(){super(...arguments);this.pkg=z.String("-p,--package",{description:"The package to run the provided command from"});this.quiet=z.Boolean("-q,--quiet",!1,{description:"Only report critical errors instead of printing the full install logs"});this.command=z.String();this.args=z.Proxy()}async execute(){let t=[];this.pkg&&t.push("--package",this.pkg),this.quiet&&t.push("--quiet");let i=P.parseDescriptor(this.command),n;i.scope?n=P.makeIdent(i.scope,`create-${i.name}`):i.name.startsWith("@")?n=P.makeIdent(i.name.substring(1),"create"):n=P.makeIdent(null,`create-${i.name}`);let s=P.stringifyIdent(n);return i.range!=="unknown"&&(s+=`@${i.range}`),this.cli.run(["dlx",...t,s,...this.args])}};_h.paths=[["create"]];var Lu=class extends De{constructor(){super(...arguments);this.packages=z.Array("-p,--package",{description:"The package(s) to install before running the command"});this.quiet=z.Boolean("-q,--quiet",!1,{description:"Only report critical errors instead of printing the full install logs"});this.command=z.String();this.args=z.Proxy()}async execute(){return ye.telemetry=null,await M.mktempPromise(async t=>{var C;let i=x.join(t,`dlx-${process.pid}`);await M.mkdirPromise(i),await M.writeFilePromise(x.join(i,"package.json"),`{}
+`),await M.writeFilePromise(x.join(i,"yarn.lock"),"");let n=x.join(i,".yarnrc.yml"),s=await ye.findProjectCwd(this.context.cwd,xt.lockfile),o=!(await ye.find(this.context.cwd,null,{strict:!1})).get("enableGlobalCache"),a=s!==null?x.join(s,".yarnrc.yml"):null;a!==null&&M.existsSync(a)?(await M.copyFilePromise(a,n),await ye.updateConfiguration(i,y=>{let B={...y,enableGlobalCache:o,enableTelemetry:!1};return Array.isArray(y.plugins)&&(B.plugins=y.plugins.map(v=>{let D=typeof v=="string"?v:v.path,L=K.isAbsolute(D)?D:K.resolve(K.fromPortablePath(s),D);return typeof v=="string"?L:{path:L,spec:v.spec}})),B})):await M.writeFilePromise(n,`enableGlobalCache: ${o}
+enableTelemetry: false
+`);let l=(C=this.packages)!=null?C:[this.command],c=P.parseDescriptor(this.command).name,u=await this.cli.run(["add","--",...l],{cwd:i,quiet:this.quiet});if(u!==0)return u;this.quiet||this.context.stdout.write(`
+`);let g=await ye.find(i,this.context.plugins),{project:f,workspace:h}=await je.find(g,i);if(h===null)throw new ct(f.cwd,i);await f.restoreInstallState();let p=await Wt.getWorkspaceAccessibleBinaries(h);return p.has(c)===!1&&p.size===1&&typeof this.packages>"u"&&(c=Array.from(p)[0][0]),await Wt.executeWorkspaceAccessibleBinary(h,c,this.args,{packageAccessibleBinaries:p,cwd:this.context.cwd,stdin:this.context.stdin,stdout:this.context.stdout,stderr:this.context.stderr})})}};Lu.paths=[["dlx"]],Lu.usage=ve.Usage({description:"run a package in a temporary environment",details:"\n      This command will install a package within a temporary environment, and run its binary script if it contains any. 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n.raw.private>"u"&&(this.private||this.workspace&&n.workspaceDefinitions.length===0)&&(n.private=!0),this.workspace&&n.workspaceDefinitions.length===0&&(await M.mkdirPromise(x.join(this.context.cwd,"packages"),{recursive:!0}),n.workspaceDefinitions=[{pattern:"packages/*"}]);let o={};n.exportTo(o),DO.inspect.styles.name="cyan",this.context.stdout.write(`${(0,DO.inspect)(o,{depth:1/0,colors:!0,compact:!1})}
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Additionally, Yarn will generate an EditorConfig file whose rules can be altered via `initEditorConfig`, and will initialize a Git repository in the current directory.\n    ",examples:[["Create a new package in the local directory","yarn init"],["Create a new private package in the local directory","yarn init -p"],["Create a new package and store the Yarn release inside","yarn init -i=latest"],["Create a new private package and defines it as a workspace root","yarn init -w"]]});var E8e={configuration:{initScope:{description:"Scope used when creating packages via the init command",type:"STRING",default:null},initFields:{description:"Additional fields to set when creating packages via the init command",type:"MAP",valueDefinition:{description:"",type:"ANY"}},initEditorConfig:{description:"Extra rules to define in the generator editorconfig",type:"MAP",valueDefinition:{description:"",type:"ANY"}}},commands:[Tu]},I8e=E8e;var RO={};ut(RO,{default:()=>w8e});var AA="portal:",lA="link:";var 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+Source path: ${ne}
+${we.map(pe=>`Not found: ${fo(pe)}
+`).join("")}`,{unqualifiedPath:ne,extensions:le})}}function ke(oe,le,we){var Ae;if(!le)throw new Error("Assertion failed: An issuer is required to resolve private import mappings");let fe=ile({name:oe,base:(0,rp.pathToFileURL)(K.fromPortablePath(le)),conditions:(Ae=we.conditions)!=null?Ae:D,readFileSyncFn:O});if(fe instanceof rp.URL)return he(K.toPortablePath((0,rp.fileURLToPath)(fe)),{extensions:we.extensions});if(fe.startsWith("#"))throw new Error("Mapping from one private import to another isn't allowed");return Fe(fe,le,we)}function Fe(oe,le,we={}){try{if(oe.startsWith("#"))return ke(oe,le,we);let{considerBuiltins:fe,extensions:Ae,conditions:qe}=we,ne=F(oe,le,{considerBuiltins:fe});if(oe==="pnpapi")return ne;if(ne===null)return null;let Y=()=>le!==null?V(le):!1,pe=(!fe||!eb(oe))&&!Y()?ue(oe,ne,qe):ne;return he(pe,{extensions:Ae})}catch(fe){throw Object.prototype.hasOwnProperty.call(fe,"pnpCode")&&Object.assign(fe.data,{request:fo(oe),issuer:le&&fo(le)}),fe}}function Ne(oe){let le=x.normalize(oe),we=Br.resolveVirtual(le);return we!==le?we:null}return{VERSIONS:W,topLevel:_,getLocator:(oe,le)=>Array.isArray(le)?{name:le[0],reference:le[1]}:{name:oe,reference:le},getDependencyTreeRoots:()=>[...r.dependencyTreeRoots],getAllLocators(){let oe=[];for(let[le,we]of f)for(let fe of we.keys())le!==null&&fe!==null&&oe.push({name:le,reference:fe});return oe},getPackageInformation:oe=>{let le=A(oe);if(le===null)return null;let we=K.fromPortablePath(le.packageLocation);return{...le,packageLocation:we}},findPackageLocator:oe=>re(K.toPortablePath(oe)),resolveToUnqualified:y("resolveToUnqualified",(oe,le,we)=>{let fe=le!==null?K.toPortablePath(le):null,Ae=F(K.toPortablePath(oe),fe,we);return Ae===null?null:K.fromPortablePath(Ae)}),resolveUnqualified:y("resolveUnqualified",(oe,le)=>K.fromPortablePath(he(K.toPortablePath(oe),le))),resolveRequest:y("resolveRequest",(oe,le,we)=>{let fe=le!==null?K.toPortablePath(le):null,Ae=Fe(K.toPortablePath(oe),fe,we);return Ae===null?null:K.fromPortablePath(Ae)}),resolveVirtual:y("resolveVirtual",oe=>{let le=Ne(K.toPortablePath(oe));return le!==null?K.fromPortablePath(le):null})}}var EBt=(0,fle.promisify)(gle.readFile);var hle=(r,e,t)=>{let i=rE(r),n=UO(i,{basePath:e}),s=K.join(e,xt.pnpCjs);return zO(n,{fakeFs:t,pnpapiResolution:s})};var XO=Pe(dle());var po={};ut(po,{checkAndReportManifestCompatibility:()=>mle,checkManifestCompatibility:()=>Cle,extractBuildScripts:()=>tb,getExtractHint:()=>ZO,hasBindingGyp:()=>_O});function Cle(r){return P.isPackageCompatible(r,Is.getArchitectureSet())}function mle(r,e,{configuration:t,report:i}){return Cle(r)?!0:(i==null||i.reportWarningOnce(76,`${P.prettyLocator(t,r)} The ${Is.getArchitectureName()} architecture is incompatible with this package, ${e} skipped.`),!1)}function tb(r,e,t,{configuration:i,report:n}){let s=[];for(let a of["preinstall","install","postinstall"])e.manifest.scripts.has(a)&&s.push([0,a]);return!e.manifest.scripts.has("install")&&e.misc.hasBindingGyp&&s.push([1,"node-gyp rebuild"]),s.length===0?[]:r.linkType!=="HARD"?(n==null||n.reportWarningOnce(6,`${P.prettyLocator(i,r)} lists build scripts, but is referenced through a soft link. Soft links don't support build scripts, so they'll be ignored.`),[]):t&&t.built===!1?(n==null||n.reportInfoOnce(5,`${P.prettyLocator(i,r)} lists build scripts, but its build has been explicitly disabled through configuration.`),[]):!i.get("enableScripts")&&!t.built?(n==null||n.reportWarningOnce(4,`${P.prettyLocator(i,r)} lists build scripts, but all build scripts have been disabled.`),[]):mle(r,"build",{configuration:i,report:n})?s:[]}var oze=new Set([".exe",".h",".hh",".hpp",".c",".cc",".cpp",".java",".jar",".node"]);function ZO(r){return r.packageFs.getExtractHint({relevantExtensions:oze})}function _O(r){let e=x.join(r.prefixPath,"binding.gyp");return r.packageFs.existsSync(e)}var cE={};ut(cE,{getUnpluggedPath:()=>lE});function lE(r,{configuration:e}){return x.resolve(e.get("pnpUnpluggedFolder"),P.slugifyLocator(r))}var aze=new Set([P.makeIdent(null,"open").identHash,P.makeIdent(null,"opn").identHash]),ml=class{constructor(){this.mode="strict";this.pnpCache=new Map}supportsPackage(e,t){return this.isEnabled(t)}async findPackageLocation(e,t){if(!this.isEnabled(t))throw new Error("Assertion failed: Expected the PnP linker to be enabled");let i=El(t.project).cjs;if(!M.existsSync(i))throw new be(`The project in ${ee.pretty(t.project.configuration,`${t.project.cwd}/package.json`,ee.Type.PATH)} doesn't seem to have been installed - running an install there might help`);let n=Ie.getFactoryWithDefault(this.pnpCache,i,()=>Ie.dynamicRequire(i,{cachingStrategy:Ie.CachingStrategy.FsTime})),s={name:P.stringifyIdent(e),reference:e.reference},o=n.getPackageInformation(s);if(!o)throw new be(`Couldn't find ${P.prettyLocator(t.project.configuration,e)} in the currently installed PnP map - running an install might help`);return K.toPortablePath(o.packageLocation)}async findPackageLocator(e,t){if(!this.isEnabled(t))return null;let i=El(t.project).cjs;if(!M.existsSync(i))return null;let s=Ie.getFactoryWithDefault(this.pnpCache,i,()=>Ie.dynamicRequire(i,{cachingStrategy:Ie.CachingStrategy.FsTime})).findPackageLocator(K.fromPortablePath(e));return s?P.makeLocator(P.parseIdent(s.name),s.reference):null}makeInstaller(e){return new Uu(e)}isEnabled(e){return!(e.project.configuration.get("nodeLinker")!=="pnp"||e.project.configuration.get("pnpMode")!==this.mode)}},Uu=class{constructor(e){this.opts=e;this.mode="strict";this.asyncActions=new Ie.AsyncActions(10);this.packageRegistry=new Map;this.virtualTemplates=new Map;this.isESMLoaderRequired=!1;this.customData={store:new Map};this.unpluggedPaths=new Set;this.opts=e}getCustomDataKey(){return JSON.stringify({name:"PnpInstaller",version:2})}attachCustomData(e){this.customData=e}async installPackage(e,t,i){let n=P.stringifyIdent(e),s=e.reference,o=!!this.opts.project.tryWorkspaceByLocator(e),a=P.isVirtualLocator(e),l=e.peerDependencies.size>0&&!a,c=!l&&!o,u=!l&&e.linkType!=="SOFT",g,f;if(c||u){let D=a?P.devirtualizeLocator(e):e;g=this.customData.store.get(D.locatorHash),typeof g>"u"&&(g=await Aze(t),e.linkType==="HARD"&&this.customData.store.set(D.locatorHash,g)),g.manifest.type==="module"&&(this.isESMLoaderRequired=!0),f=this.opts.project.getDependencyMeta(D,e.version)}let h=c?tb(e,g,f,{configuration:this.opts.project.configuration,report:this.opts.report}):[],p=u?await this.unplugPackageIfNeeded(e,g,t,f,i):t.packageFs;if(x.isAbsolute(t.prefixPath))throw new Error(`Assertion failed: Expected the prefix path (${t.prefixPath}) to be relative to the parent`);let C=x.resolve(p.getRealPath(),t.prefixPath),y=$O(this.opts.project.cwd,C),B=new Map,v=new Set;if(a){for(let D of e.peerDependencies.values())B.set(P.stringifyIdent(D),null),v.add(P.stringifyIdent(D));if(!o){let D=P.devirtualizeLocator(e);this.virtualTemplates.set(D.locatorHash,{location:$O(this.opts.project.cwd,Br.resolveVirtual(C)),locator:D})}}return Ie.getMapWithDefault(this.packageRegistry,n).set(s,{packageLocation:y,packageDependencies:B,packagePeers:v,linkType:e.linkType,discardFromLookup:t.discardFromLookup||!1}),{packageLocation:C,buildDirective:h.length>0?h:null}}async attachInternalDependencies(e,t){let i=this.getPackageInformation(e);for(let[n,s]of t){let o=P.areIdentsEqual(n,s)?s.reference:[P.stringifyIdent(s),s.reference];i.packageDependencies.set(P.stringifyIdent(n),o)}}async attachExternalDependents(e,t){for(let i of t)this.getDiskInformation(i).packageDependencies.set(P.stringifyIdent(e),e.reference)}async finalizeInstall(){if(this.opts.project.configuration.get("pnpMode")!==this.mode)return;let e=El(this.opts.project);if(M.existsSync(e.cjsLegacy)&&(this.opts.report.reportWarning(0,`Removing the old ${ee.pretty(this.opts.project.configuration,xt.pnpJs,ee.Type.PATH)} file. You might need to manually update existing references to reference the new ${ee.pretty(this.opts.project.configuration,xt.pnpCjs,ee.Type.PATH)} file. If you use Editor SDKs, you'll have to rerun ${ee.pretty(this.opts.project.configuration,"yarn sdks",ee.Type.CODE)}.`),await M.removePromise(e.cjsLegacy)),this.isEsmEnabled()||await M.removePromise(e.esmLoader),this.opts.project.configuration.get("nodeLinker")!=="pnp"){await M.removePromise(e.cjs),await M.removePromise(this.opts.project.configuration.get("pnpDataPath")),await M.removePromise(e.esmLoader),await M.removePromise(this.opts.project.configuration.get("pnpUnpluggedFolder"));return}for(let{locator:u,location:g}of this.virtualTemplates.values())Ie.getMapWithDefault(this.packageRegistry,P.stringifyIdent(u)).set(u.reference,{packageLocation:g,packageDependencies:new Map,packagePeers:new Set,linkType:"SOFT",discardFromLookup:!1});this.packageRegistry.set(null,new Map([[null,this.getPackageInformation(this.opts.project.topLevelWorkspace.anchoredLocator)]]));let t=this.opts.project.configuration.get("pnpFallbackMode"),i=this.opts.project.workspaces.map(({anchoredLocator:u})=>({name:P.stringifyIdent(u),reference:u.reference})),n=t!=="none",s=[],o=new Map,a=Ie.buildIgnorePattern([".yarn/sdks/**",...this.opts.project.configuration.get("pnpIgnorePatterns")]),l=this.packageRegistry,c=this.opts.project.configuration.get("pnpShebang");if(t==="dependencies-only")for(let u of this.opts.project.storedPackages.values())this.opts.project.tryWorkspaceByLocator(u)&&s.push({name:P.stringifyIdent(u),reference:u.reference});return await this.asyncActions.wait(),await this.finalizeInstallWithPnp({dependencyTreeRoots:i,enableTopLevelFallback:n,fallbackExclusionList:s,fallbackPool:o,ignorePattern:a,packageRegistry:l,shebang:c}),{customData:this.customData}}async transformPnpSettings(e){}isEsmEnabled(){if(this.opts.project.configuration.sources.has("pnpEnableEsmLoader"))return this.opts.project.configuration.get("pnpEnableEsmLoader");if(this.isESMLoaderRequired)return!0;for(let e of this.opts.project.workspaces)if(e.manifest.type==="module")return!0;return!1}async finalizeInstallWithPnp(e){let t=El(this.opts.project),i=this.opts.project.configuration.get("pnpDataPath"),n=await this.locateNodeModules(e.ignorePattern);if(n.length>0){this.opts.report.reportWarning(31,"One or more node_modules have been detected and will be removed. This operation may take some time.");for(let o of n)await M.removePromise(o)}if(await this.transformPnpSettings(e),this.opts.project.configuration.get("pnpEnableInlining")){let o=HAe(e);await M.changeFilePromise(t.cjs,o,{automaticNewlines:!0,mode:493}),await M.removePromise(i)}else{let o=x.relative(x.dirname(t.cjs),i),{dataFile:a,loaderFile:l}=GAe({...e,dataLocation:o});await M.changeFilePromise(t.cjs,l,{automaticNewlines:!0,mode:493}),await M.changeFilePromise(i,a,{automaticNewlines:!0,mode:420})}this.isEsmEnabled()&&(this.opts.report.reportWarning(0,"ESM support for PnP uses the experimental loader API and is therefore experimental"),await M.changeFilePromise(t.esmLoader,(0,XO.default)(),{automaticNewlines:!0,mode:420}));let s=this.opts.project.configuration.get("pnpUnpluggedFolder");if(this.unpluggedPaths.size===0)await M.removePromise(s);else for(let o of await M.readdirPromise(s)){let a=x.resolve(s,o);this.unpluggedPaths.has(a)||await M.removePromise(a)}}async locateNodeModules(e){let t=[],i=e?new RegExp(e):null;for(let n of this.opts.project.workspaces){let s=x.join(n.cwd,"node_modules");if(i&&i.test(x.relative(this.opts.project.cwd,n.cwd))||!M.existsSync(s))continue;let o=await M.readdirPromise(s,{withFileTypes:!0}),a=o.filter(l=>!l.isDirectory()||l.name===".bin"||!l.name.startsWith("."));if(a.length===o.length)t.push(s);else for(let l of a)t.push(x.join(s,l.name))}return t}async unplugPackageIfNeeded(e,t,i,n,s){return this.shouldBeUnplugged(e,t,n)?this.unplugPackage(e,i,s):i.packageFs}shouldBeUnplugged(e,t,i){return typeof i.unplugged<"u"?i.unplugged:aze.has(e.identHash)||e.conditions!=null?!0:t.manifest.preferUnplugged!==null?t.manifest.preferUnplugged:!!(tb(e,t,i,{configuration:this.opts.project.configuration}).length>0||t.misc.extractHint)}async unplugPackage(e,t,i){let n=lE(e,{configuration:this.opts.project.configuration});return this.opts.project.disabledLocators.has(e.locatorHash)?new bo(n,{baseFs:t.packageFs,pathUtils:x}):(this.unpluggedPaths.add(n),i.holdFetchResult(this.asyncActions.set(e.locatorHash,async()=>{let s=x.join(n,t.prefixPath,".ready");await M.existsPromise(s)||(this.opts.project.storedBuildState.delete(e.locatorHash),await M.mkdirPromise(n,{recursive:!0}),await M.copyPromise(n,Oe.dot,{baseFs:t.packageFs,overwrite:!1}),await M.writeFilePromise(s,""))})),new qt(n))}getPackageInformation(e){let t=P.stringifyIdent(e),i=e.reference,n=this.packageRegistry.get(t);if(!n)throw new Error(`Assertion failed: The package information store should have been available (for ${P.prettyIdent(this.opts.project.configuration,e)})`);let s=n.get(i);if(!s)throw new Error(`Assertion failed: The package information should have been available (for ${P.prettyLocator(this.opts.project.configuration,e)})`);return s}getDiskInformation(e){let t=Ie.getMapWithDefault(this.packageRegistry,"@@disk"),i=$O(this.opts.project.cwd,e);return Ie.getFactoryWithDefault(t,i,()=>({packageLocation:i,packageDependencies:new Map,packagePeers:new Set,linkType:"SOFT",discardFromLookup:!1}))}};function $O(r,e){let t=x.relative(r,e);return t.match(/^\.{0,2}\//)||(t=`./${t}`),t.replace(/\/?$/,"/")}async function Aze(r){var i;let e=(i=await ot.tryFind(r.prefixPath,{baseFs:r.packageFs}))!=null?i:new ot,t=new Set(["preinstall","install","postinstall"]);for(let n of e.scripts.keys())t.has(n)||e.scripts.delete(n);return{manifest:{scripts:e.scripts,preferUnplugged:e.preferUnplugged,type:e.type},misc:{extractHint:ZO(r),hasBindingGyp:_O(r)}}}var Ele=Pe(yn());var Hu=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Unplug direct dependencies from the entire project"});this.recursive=z.Boolean("-R,--recursive",!1,{description:"Unplug both direct and transitive dependencies"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.patterns=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);if(t.get("nodeLinker")!=="pnp")throw new be("This command can only be used if the `nodeLinker` option is set to `pnp`");await i.restoreInstallState();let o=new Set(this.patterns),a=this.patterns.map(h=>{let p=P.parseDescriptor(h),C=p.range!=="unknown"?p:P.makeDescriptor(p,"*");if(!vt.validRange(C.range))throw new be(`The range of the descriptor patterns must be a valid semver range (${P.prettyDescriptor(t,C)})`);return y=>{let B=P.stringifyIdent(y);return!Ele.default.isMatch(B,P.stringifyIdent(C))||y.version&&!vt.satisfiesWithPrereleases(y.version,C.range)?!1:(o.delete(h),!0)}}),l=()=>{let h=[];for(let p of i.storedPackages.values())!i.tryWorkspaceByLocator(p)&&!P.isVirtualLocator(p)&&a.some(C=>C(p))&&h.push(p);return h},c=h=>{let p=new Set,C=[],y=(B,v)=>{if(!p.has(B.locatorHash)&&(p.add(B.locatorHash),!i.tryWorkspaceByLocator(B)&&a.some(D=>D(B))&&C.push(B),!(v>0&&!this.recursive)))for(let D of B.dependencies.values()){let L=i.storedResolutions.get(D.descriptorHash);if(!L)throw new Error("Assertion failed: The resolution should have been registered");let H=i.storedPackages.get(L);if(!H)throw new Error("Assertion failed: The package should have been registered");y(H,v+1)}};for(let B of h){let v=i.storedPackages.get(B.anchoredLocator.locatorHash);if(!v)throw new Error("Assertion failed: The package should have been registered");y(v,0)}return C},u,g;if(this.all&&this.recursive?(u=l(),g="the project"):this.all?(u=c(i.workspaces),g="any workspace"):(u=c([n]),g="this workspace"),o.size>1)throw new be(`Patterns ${ee.prettyList(t,o,ee.Type.CODE)} don't match any packages referenced by ${g}`);if(o.size>0)throw new be(`Pattern ${ee.prettyList(t,o,ee.Type.CODE)} doesn't match any packages referenced by ${g}`);return u=Ie.sortMap(u,h=>P.stringifyLocator(h)),(await Ge.start({configuration:t,stdout:this.context.stdout,json:this.json},async h=>{var p;for(let C of u){let y=(p=C.version)!=null?p:"unknown",B=i.topLevelWorkspace.manifest.ensureDependencyMeta(P.makeDescriptor(C,y));B.unplugged=!0,h.reportInfo(0,`Will unpack ${P.prettyLocator(t,C)} to ${ee.pretty(t,lE(C,{configuration:t}),ee.Type.PATH)}`),h.reportJson({locator:P.stringifyLocator(C),version:y})}await i.topLevelWorkspace.persistManifest(),h.reportSeparator(),await i.install({cache:s,report:h})})).exitCode()}};Hu.paths=[["unplug"]],Hu.usage=ve.Usage({description:"force the unpacking of a list of packages",details:"\n      This command will add the selectors matching the specified patterns to the list of packages that must be unplugged when installed.\n\n      A package being unplugged means that instead of being referenced directly through its archive, it will be unpacked at install time in the directory configured via `pnpUnpluggedFolder`. Note that unpacking packages this way is generally not recommended because it'll make it harder to store your packages within the repository. However, it's a good approach to quickly and safely debug some packages, and can even sometimes be required depending on the context (for example when the package contains shellscripts).\n\n      Running the command will set a persistent flag inside your top-level `package.json`, in the `dependenciesMeta` field. As such, to undo its effects, you'll need to revert the changes made to the manifest and run `yarn install` to apply the modification.\n\n      By default, only direct dependencies from the current workspace are affected. If `-A,--all` is set, direct dependencies from the entire project are affected. Using the `-R,--recursive` flag will affect transitive dependencies as well as direct ones.\n\n      This command accepts glob patterns inside the scope and name components (not the range). Make sure to escape the patterns to prevent your own shell from trying to expand them.\n    ",examples:[["Unplug the lodash dependency from the active workspace","yarn unplug lodash"],["Unplug all instances of lodash referenced by any workspace","yarn unplug lodash -A"],["Unplug all instances of lodash referenced by the active workspace and its dependencies","yarn unplug lodash -R"],["Unplug all instances of lodash, anywhere","yarn unplug lodash -AR"],["Unplug one specific version of lodash","yarn unplug lodash@1.2.3"],["Unplug all packages with the `@babel` scope","yarn unplug '@babel/*'"],["Unplug all packages (only for testing, not recommended)","yarn unplug -R '*'"]]});var El=r=>({cjs:x.join(r.cwd,xt.pnpCjs),cjsLegacy:x.join(r.cwd,xt.pnpJs),esmLoader:x.join(r.cwd,".pnp.loader.mjs")}),wle=r=>/\s/.test(r)?JSON.stringify(r):r;async function lze(r,e,t){let i=El(r),n=`--require ${wle(K.fromPortablePath(i.cjs))}`;if(M.existsSync(i.esmLoader)&&(n=`${n} --experimental-loader ${(0,yle.pathToFileURL)(K.fromPortablePath(i.esmLoader)).href}`),i.cjs.includes(" ")&&Ile.default.lt(process.versions.node,"12.0.0"))throw new Error(`Expected the build location to not include spaces when using Node < 12.0.0 (${process.versions.node})`);if(M.existsSync(i.cjs)){let s=e.NODE_OPTIONS||"",o=/\s*--require\s+\S*\.pnp\.c?js\s*/g,a=/\s*--experimental-loader\s+\S*\.pnp\.loader\.mjs\s*/;s=s.replace(o," ").replace(a," ").trim(),s=s?`${n} ${s}`:n,e.NODE_OPTIONS=s}}async function cze(r,e){let t=El(r);e(t.cjs),e(t.esmLoader),e(r.configuration.get("pnpDataPath")),e(r.configuration.get("pnpUnpluggedFolder"))}var uze={hooks:{populateYarnPaths:cze,setupScriptEnvironment:lze},configuration:{nodeLinker:{description:'The linker used for installing Node packages, one of: "pnp", "node-modules"',type:"STRING",default:"pnp"},pnpMode:{description:"If 'strict', generates standard PnP maps. If 'loose', merges them with the n_m resolution.",type:"STRING",default:"strict"},pnpShebang:{description:"String to prepend to the generated PnP script",type:"STRING",default:"#!/usr/bin/env node"},pnpIgnorePatterns:{description:"Array of glob patterns; files matching them will use the classic resolution",type:"STRING",default:[],isArray:!0},pnpEnableEsmLoader:{description:"If true, Yarn will generate an ESM loader (`.pnp.loader.mjs`). 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i}function Hue(r,e){var i;let t=XVe(r,e);for(let n of Object.keys(t))if((i=t[n])!=null?i:0>0)return!0;return!1}function Gue(r,e){var s;let t={},i={children:t},n=Object.values(r.advisories);if(e!=null){let o=Uue(e);n=n.filter(a=>o.has(a.severity))}for(let o of Ie.sortMap(n,a=>a.module_name))t[o.module_name]={label:o.module_name,value:ee.tuple(ee.Type.RANGE,o.findings.map(a=>a.version).join(", ")),children:{ID:{label:"ID",value:ee.tuple(ee.Type.NUMBER,o.id)},Issue:{label:"Issue",value:ee.tuple(ee.Type.NO_HINT,o.title)},URL:{label:"URL",value:ee.tuple(ee.Type.URL,o.url)},Severity:{label:"Severity",value:ee.tuple(ee.Type.NO_HINT,o.severity)},["Vulnerable Versions"]:{label:"Vulnerable Versions",value:ee.tuple(ee.Type.RANGE,o.vulnerable_versions)},["Patched Versions"]:{label:"Patched Versions",value:ee.tuple(ee.Type.RANGE,o.patched_versions)},Via:{label:"Via",value:ee.tuple(ee.Type.NO_HINT,Array.from(new Set(o.findings.map(a=>a.paths).flat().map(a=>a.split(">")[0]))).join(", "))},Recommendation:{label:"Recommendation",value:ee.tuple(ee.Type.NO_HINT,(s=o.recommendation)==null?void 0:s.replace(/\n/g," "))}}};return i}function Yue(r,e,{all:t,environment:i}){let n=t?r.workspaces:[e],s=["all","production"].includes(i),o=[];if(s)for(let c of n)for(let u of c.manifest.dependencies.values())o.push(u);let a=["all","development"].includes(i),l=[];if(a)for(let c of n)for(let u of c.manifest.devDependencies.values())l.push(u);return Kue([...o,...l].filter(c=>P.parseRange(c.range).protocol===null))}function jue(r,e,{all:t}){var s;let i=VVe(r,e,{all:t}),n={};for(let o of r.storedPackages.values())n[P.stringifyIdent(o)]={version:(s=o.version)!=null?s:"0.0.0",integrity:o.identHash,requires:Kue(o.dependencies.values()),dev:i.has(P.convertLocatorToDescriptor(o).descriptorHash)};return n}var Vu=class extends De{constructor(){super(...arguments);this.all=z.Boolean("-A,--all",!1,{description:"Audit dependencies from all workspaces"});this.recursive=z.Boolean("-R,--recursive",!1,{description:"Audit transitive dependencies as well"});this.environment=z.String("--environment","all",{description:"Which environments to cover",validator:Vi(Ob)});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.severity=z.String("--severity","info",{description:"Minimal severity requested for packages to be displayed",validator:Vi(Mb)});this.excludes=z.Array("--exclude",[],{description:"Array of glob patterns of packages to exclude from audit"});this.ignores=z.Array("--ignore",[],{description:"Array of glob patterns of advisory ID's to ignore in the audit report"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState();let s=Yue(i,n,{all:this.all,environment:this.environment}),o=jue(i,n,{all:this.all});if(!this.recursive)for(let C of Object.keys(o))Object.prototype.hasOwnProperty.call(s,C)?o[C].requires={}:delete o[C];let a=Array.from(new Set([...t.get("npmAuditExcludePackages"),...this.excludes]));if(a){for(let C of Object.keys(s))vE.default.isMatch(C,a)&&delete s[C];for(let C of Object.keys(o))vE.default.isMatch(C,a)&&delete o[C];for(let C of Object.keys(o))for(let y of Object.keys(o[C].requires))vE.default.isMatch(y,a)&&delete o[C].requires[y]}let l={requires:s,dependencies:o},c=or.getAuditRegistry(n.manifest,{configuration:t}),u,g=await ra.start({configuration:t,stdout:this.context.stdout},async()=>{u=await Mt.post("/-/npm/v1/security/audits/quick",l,{authType:Mt.AuthType.BEST_EFFORT,configuration:t,jsonResponse:!0,registry:c})});if(g.hasErrors())return g.exitCode();let f=Array.from(new Set([...t.get("npmAuditIgnoreAdvisories"),...this.ignores]));if(f){for(let C of Object.keys(u.advisories))if(vE.default.isMatch(C,f)){let y=u.advisories[C];u.metadata.vulnerabilities[y.severity]-=1,delete u.advisories[C]}}let h=Hue(u.metadata.vulnerabilities,this.severity);return!this.json&&h?(_n.emitTree(Gue(u,this.severity),{configuration:t,json:this.json,stdout:this.context.stdout,separators:2}),1):(await Ge.start({configuration:t,includeFooter:!1,json:this.json,stdout:this.context.stdout},async C=>{C.reportJson(u),h||C.reportInfo(1,"No audit suggestions")})).exitCode()}};Vu.paths=[["npm","audit"]],Vu.usage=ve.Usage({description:"perform a vulnerability audit against the installed packages",details:`
+      This command checks for known security reports on the packages you use. The reports are by default extracted from the npm registry, and may or may not be relevant to your actual program (not all vulnerabilities affect all code paths).
+
+      For consistency with our other commands the default is to only check the direct dependencies for the active workspace. To extend this search to all workspaces, use \`-A,--all\`. To extend this search to both direct and transitive dependencies, use \`-R,--recursive\`.
+
+      Applying the \`--severity\` flag will limit the audit table to vulnerabilities of the corresponding severity and above. Valid values are ${SE.map(t=>`\`${t}\``).join(", ")}.
+
+      If the \`--json\` flag is set, Yarn will print the output exactly as received from the registry. Regardless of this flag, the process will exit with a non-zero exit code if a report is found for the selected packages.
+
+      If certain packages produce false positives for a particular environment, the \`--exclude\` flag can be used to exclude any number of packages from the audit. This can also be set in the configuration file with the \`npmAuditExcludePackages\` option.
+
+      If particular advisories are needed to be ignored, the \`--ignore\` flag can be used with Advisory ID's to ignore any number of advisories in the audit report. This can also be set in the configuration file with the \`npmAuditIgnoreAdvisories\` option.
+
+      To understand the dependency tree requiring vulnerable packages, check the raw report with the \`--json\` flag or use \`yarn why <package>\` to get more information as to who depends on them.
+    `,examples:[["Checks for known security issues with the installed packages. The output is a list of known issues.","yarn npm audit"],["Audit dependencies in all workspaces","yarn npm audit --all"],["Limit auditing to `dependencies` (excludes `devDependencies`)","yarn npm audit --environment production"],["Show audit report as valid JSON","yarn npm audit --json"],["Audit all direct and transitive dependencies","yarn npm audit --recursive"],["Output moderate (or more severe) vulnerabilities","yarn npm audit --severity moderate"],["Exclude certain packages","yarn npm audit --exclude package1 --exclude package2"],["Ignore specific advisories","yarn npm audit --ignore 1234567 --ignore 7654321"]]});var l1=Pe(Xr()),c1=J("util"),Xu=class extends De{constructor(){super(...arguments);this.fields=z.String("-f,--fields",{description:"A comma-separated list of manifest fields that should be displayed"});this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.packages=z.Rest()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i}=await je.find(t,this.context.cwd),n=typeof this.fields<"u"?new Set(["name",...this.fields.split(/\s*,\s*/)]):null,s=[],o=!1,a=await Ge.start({configuration:t,includeFooter:!1,json:this.json,stdout:this.context.stdout},async l=>{for(let c of this.packages){let u;if(c==="."){let L=i.topLevelWorkspace;if(!L.manifest.name)throw new be(`Missing ${ee.pretty(t,"name",ee.Type.CODE)} field in ${K.fromPortablePath(x.join(L.cwd,xt.manifest))}`);u=P.makeDescriptor(L.manifest.name,"unknown")}else u=P.parseDescriptor(c);let g=Mt.getIdentUrl(u),f=u1(await Mt.get(g,{configuration:t,ident:u,jsonResponse:!0,customErrorMessage:Mt.customPackageError})),h=Object.keys(f.versions).sort(l1.default.compareLoose),C=f["dist-tags"].latest||h[h.length-1],y=vt.validRange(u.range);if(y){let L=l1.default.maxSatisfying(h,y);L!==null?C=L:(l.reportWarning(0,`Unmet range ${P.prettyRange(t,u.range)}; falling back to the latest version`),o=!0)}else Object.prototype.hasOwnProperty.call(f["dist-tags"],u.range)?C=f["dist-tags"][u.range]:u.range!=="unknown"&&(l.reportWarning(0,`Unknown tag ${P.prettyRange(t,u.range)}; falling back to the latest version`),o=!0);let B=f.versions[C],v={...f,...B,version:C,versions:h},D;if(n!==null){D={};for(let L of n){let H=v[L];if(typeof H<"u")D[L]=H;else{l.reportWarning(1,`The ${ee.pretty(t,L,ee.Type.CODE)} field doesn't exist inside ${P.prettyIdent(t,u)}'s information`),o=!0;continue}}}else this.json||(delete v.dist,delete v.readme,delete v.users),D=v;l.reportJson(D),this.json||s.push(D)}});c1.inspect.styles.name="cyan";for(let l of s)(l!==s[0]||o)&&this.context.stdout.write(`
+`),this.context.stdout.write(`${(0,c1.inspect)(l,{depth:1/0,colors:!0,compact:!1})}
+`);return a.exitCode()}};Xu.paths=[["npm","info"]],Xu.usage=ve.Usage({category:"Npm-related commands",description:"show information about a package",details:"\n      This command fetches information about a package from the npm registry and prints it in a tree format.\n\n      The package does not have to be installed locally, but needs to have been published (in particular, local changes will be ignored even for workspaces).\n\n      Append `@<range>` to the package argument to provide information specific to the latest version that satisfies the range or to the corresponding tagged version. If the range is invalid or if there is no version satisfying the range, the command will print a warning and fall back to the latest version.\n\n      If the `-f,--fields` option is set, it's a comma-separated list of fields which will be used to only display part of the package information.\n\n      By default, this command won't return the `dist`, `readme`, and `users` fields, since they are often very long. To explicitly request those fields, explicitly list them with the `--fields` flag or request the output in JSON mode.\n    ",examples:[["Show all available information about react (except the `dist`, `readme`, and `users` fields)","yarn npm info react"],["Show all available information about react as valid JSON (including the `dist`, `readme`, and `users` fields)","yarn npm info react --json"],["Show all available information about react@16.12.0","yarn npm info react@16.12.0"],["Show all available information about react@next","yarn npm info react@next"],["Show the description of react","yarn npm info react --fields description"],["Show all available versions of react","yarn npm info react --fields versions"],["Show the readme of react","yarn npm info react --fields readme"],["Show a few fields of react","yarn npm info react --fields homepage,repository"]]});function u1(r){if(Array.isArray(r)){let e=[];for(let t of r)t=u1(t),t&&e.push(t);return e}else if(typeof r=="object"&&r!==null){let e={};for(let t of Object.keys(r)){if(t.startsWith("_"))continue;let i=u1(r[t]);i&&(e[t]=i)}return e}else return r||null}var que=Pe(Om()),Zu=class extends De{constructor(){super(...arguments);this.scope=z.String("-s,--scope",{description:"Login to the registry configured for a given scope"});this.publish=z.Boolean("--publish",!1,{description:"Login to the publish registry"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=await Kb({configuration:t,cwd:this.context.cwd,publish:this.publish,scope:this.scope});return(await Ge.start({configuration:t,stdout:this.context.stdout,includeFooter:!1},async s=>{let o=await $Ve({configuration:t,registry:i,report:s,stdin:this.context.stdin,stdout:this.context.stdout}),a=`/-/user/org.couchdb.user:${encodeURIComponent(o.name)}`,l=await Mt.put(a,o,{attemptedAs:o.name,configuration:t,registry:i,jsonResponse:!0,authType:Mt.AuthType.NO_AUTH});return await _Ve(i,l.token,{configuration:t,scope:this.scope}),s.reportInfo(0,"Successfully logged in")})).exitCode()}};Zu.paths=[["npm","login"]],Zu.usage=ve.Usage({category:"Npm-related commands",description:"store new login info to access the npm registry",details:"\n      This command will ask you for your username, password, and 2FA One-Time-Password (when it applies). It will then modify your local configuration (in your home folder, never in the project itself) to reference the new tokens thus generated.\n\n      Adding the `-s,--scope` flag will cause the authentication to be done against whatever registry is configured for the associated scope (see also `npmScopes`).\n\n      Adding the `--publish` flag will cause the authentication to be done against the registry used when publishing the package (see also `publishConfig.registry` and `npmPublishRegistry`).\n    ",examples:[["Login to the default registry","yarn npm login"],["Login to the registry linked to the @my-scope registry","yarn npm login --scope my-scope"],["Login to the publish registry for the current package","yarn npm login --publish"]]});async function Kb({scope:r,publish:e,configuration:t,cwd:i}){return r&&e?or.getScopeRegistry(r,{configuration:t,type:or.RegistryType.PUBLISH_REGISTRY}):r?or.getScopeRegistry(r,{configuration:t}):e?or.getPublishRegistry((await Mh(t,i)).manifest,{configuration:t}):or.getDefaultRegistry({configuration:t})}async function _Ve(r,e,{configuration:t,scope:i}){let n=o=>a=>{let l=Ie.isIndexableObject(a)?a:{},c=l[o],u=Ie.isIndexableObject(c)?c:{};return{...l,[o]:{...u,npmAuthToken:e}}},s=i?{npmScopes:n(i)}:{npmRegistries:n(r)};return await ye.updateHomeConfiguration(s)}async function $Ve({configuration:r,registry:e,report:t,stdin:i,stdout:n}){t.reportInfo(0,`Logging in to ${ee.pretty(r,e,ee.Type.URL)}`);let s=!1;if(e.match(/^https:\/\/npm\.pkg\.github\.com(\/|$)/)&&(t.reportInfo(0,"You seem to be using the GitHub Package Registry. Tokens must be generated with the 'repo', 'write:packages', and 'read:packages' permissions."),s=!0),t.reportSeparator(),process.env.YARN_IS_TEST_ENV)return{name:process.env.YARN_INJECT_NPM_USER||"",password:process.env.YARN_INJECT_NPM_PASSWORD||""};let{username:o,password:a}=await(0,que.prompt)([{type:"input",name:"username",message:"Username:",required:!0,onCancel:()=>process.exit(130),stdin:i,stdout:n},{type:"password",name:"password",message:s?"Token:":"Password:",required:!0,onCancel:()=>process.exit(130),stdin:i,stdout:n}]);return t.reportSeparator(),{name:o,password:a}}var Cp=new Set(["npmAuthIdent","npmAuthToken"]),_u=class extends De{constructor(){super(...arguments);this.scope=z.String("-s,--scope",{description:"Logout of the registry configured for a given scope"});this.publish=z.Boolean("--publish",!1,{description:"Logout of the publish registry"});this.all=z.Boolean("-A,--all",!1,{description:"Logout of all registries"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i=async()=>{var c;let s=await Kb({configuration:t,cwd:this.context.cwd,publish:this.publish,scope:this.scope}),o=await ye.find(this.context.cwd,this.context.plugins),a=P.makeIdent((c=this.scope)!=null?c:null,"pkg");return!or.getAuthConfiguration(s,{configuration:o,ident:a}).get("npmAuthToken")};return(await Ge.start({configuration:t,stdout:this.context.stdout},async s=>{if(this.all&&(await t7e(),s.reportInfo(0,"Successfully logged out from everything")),this.scope){await Jue("npmScopes",this.scope),await i()?s.reportInfo(0,`Successfully logged out from ${this.scope}`):s.reportWarning(0,"Scope authentication settings removed, but some other ones settings still apply to it");return}let o=await Kb({configuration:t,cwd:this.context.cwd,publish:this.publish});await Jue("npmRegistries",o),await i()?s.reportInfo(0,`Successfully logged out from ${o}`):s.reportWarning(0,"Registry authentication settings removed, but some other ones settings still apply to it")})).exitCode()}};_u.paths=[["npm","logout"]],_u.usage=ve.Usage({category:"Npm-related commands",description:"logout of the npm registry",details:"\n      This command will log you out by modifying your local configuration (in your home folder, never in the project itself) to delete all credentials linked to a registry.\n\n      Adding the `-s,--scope` flag will cause the deletion to be done against whatever registry is configured for the associated scope (see also `npmScopes`).\n\n      Adding the `--publish` flag will cause the deletion to be done against the registry used when publishing the package (see also `publishConfig.registry` and `npmPublishRegistry`).\n\n      Adding the `-A,--all` flag will cause the deletion to be done against all registries and scopes.\n    ",examples:[["Logout of the default registry","yarn npm logout"],["Logout of the @my-scope scope","yarn npm logout --scope my-scope"],["Logout of the publish registry for the current package","yarn npm logout --publish"],["Logout of all registries","yarn npm logout --all"]]});function e7e(r,e){let t=r[e];if(!Ie.isIndexableObject(t))return!1;let i=new Set(Object.keys(t));if([...Cp].every(s=>!i.has(s)))return!1;for(let s of Cp)i.delete(s);if(i.size===0)return r[e]=void 0,!0;let n={...t};for(let s of Cp)delete n[s];return r[e]=n,!0}async function t7e(){let r=e=>{let t=!1,i=Ie.isIndexableObject(e)?{...e}:{};i.npmAuthToken&&(delete i.npmAuthToken,t=!0);for(let n of Object.keys(i))e7e(i,n)&&(t=!0);if(Object.keys(i).length!==0)return t?i:e};return await ye.updateHomeConfiguration({npmRegistries:r,npmScopes:r})}async function Jue(r,e){return await ye.updateHomeConfiguration({[r]:t=>{let i=Ie.isIndexableObject(t)?t:{};if(!Object.prototype.hasOwnProperty.call(i,e))return t;let n=i[e],s=Ie.isIndexableObject(n)?n:{},o=new Set(Object.keys(s));if([...Cp].every(l=>!o.has(l)))return t;for(let l of Cp)o.delete(l);if(o.size===0)return Object.keys(i).length===1?void 0:{...i,[e]:void 0};let a={};for(let l of Cp)a[l]=void 0;return{...i,[e]:{...s,...a}}}})}var $u=class extends De{constructor(){super(...arguments);this.access=z.String("--access",{description:"The access for the published package (public or restricted)"});this.tag=z.String("--tag","latest",{description:"The tag on the registry that the package should be attached to"});this.tolerateRepublish=z.Boolean("--tolerate-republish",!1,{description:"Warn and exit when republishing an already existing version of a package"});this.otp=z.String("--otp",{description:"The OTP token to use with the command"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);if(n.manifest.private)throw new be("Private workspaces cannot be published");if(n.manifest.name===null||n.manifest.version===null)throw new be("Workspaces must have valid names and versions to be published on an external registry");await i.restoreInstallState();let s=n.manifest.name,o=n.manifest.version,a=or.getPublishRegistry(n.manifest,{configuration:t});return(await Ge.start({configuration:t,stdout:this.context.stdout},async c=>{var u,g;if(this.tolerateRepublish)try{let f=await Mt.get(Mt.getIdentUrl(s),{configuration:t,registry:a,ident:s,jsonResponse:!0});if(!Object.prototype.hasOwnProperty.call(f,"versions"))throw new at(15,'Registry returned invalid data for - missing "versions" field');if(Object.prototype.hasOwnProperty.call(f.versions,o)){c.reportWarning(0,`Registry already knows about version ${o}; skipping.`);return}}catch(f){if(((g=(u=f.originalError)==null?void 0:u.response)==null?void 0:g.statusCode)!==404)throw f}await Wt.maybeExecuteWorkspaceLifecycleScript(n,"prepublish",{report:c}),await Aa.prepareForPack(n,{report:c},async()=>{let f=await Aa.genPackList(n);for(let B of f)c.reportInfo(null,B);let h=await Aa.genPackStream(n,f),p=await Ie.bufferStream(h),C=await dp.getGitHead(n.cwd),y=await dp.makePublishBody(n,p,{access:this.access,tag:this.tag,registry:a,gitHead:C});await Mt.put(Mt.getIdentUrl(s),y,{configuration:t,registry:a,ident:s,otp:this.otp,jsonResponse:!0})}),c.reportInfo(0,"Package archive published")})).exitCode()}};$u.paths=[["npm","publish"]],$u.usage=ve.Usage({category:"Npm-related commands",description:"publish the active workspace to the npm registry",details:'\n      This command will pack the active workspace into a fresh archive and upload it to the npm registry.\n\n      The package will by default be attached to the `latest` tag on the registry, but this behavior can be overriden by using the `--tag` option.\n\n      Note that for legacy reasons scoped packages are by default published with an access set to `restricted` (aka "private packages"). This requires you to register for a paid npm plan. In case you simply wish to publish a public scoped package to the registry (for free), just add the `--access public` flag. This behavior can be enabled by default through the `npmPublishAccess` settings.\n    ',examples:[["Publish the active workspace","yarn npm publish"]]});var Wue=Pe(Xr());var eg=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.package=z.String({required:!1})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s;if(typeof this.package<"u")s=P.parseIdent(this.package);else{if(!n)throw new ct(i.cwd,this.context.cwd);if(!n.manifest.name)throw new be(`Missing 'name' field in ${K.fromPortablePath(x.join(n.cwd,xt.manifest))}`);s=n.manifest.name}let o=await xE(s,t),l={children:Ie.sortMap(Object.entries(o),([c])=>c).map(([c,u])=>({value:ee.tuple(ee.Type.RESOLUTION,{descriptor:P.makeDescriptor(s,c),locator:P.makeLocator(s,u)})}))};return _n.emitTree(l,{configuration:t,json:this.json,stdout:this.context.stdout})}};eg.paths=[["npm","tag","list"]],eg.usage=ve.Usage({category:"Npm-related commands",description:"list all dist-tags of a package",details:`
+      This command will list all tags of a package from the npm registry.
+
+      If the package is not specified, Yarn will default to the current workspace.
+    `,examples:[["List all tags of package `my-pkg`","yarn npm tag list my-pkg"]]});async function xE(r,e){let t=`/-/package${Mt.getIdentUrl(r)}/dist-tags`;return Mt.get(t,{configuration:e,ident:r,jsonResponse:!0,customErrorMessage:Mt.customPackageError})}var tg=class extends De{constructor(){super(...arguments);this.package=z.String();this.tag=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);let s=P.parseDescriptor(this.package,!0),o=s.range;if(!Wue.default.valid(o))throw new be(`The range ${ee.pretty(t,s.range,ee.Type.RANGE)} must be a valid semver version`);let a=or.getPublishRegistry(n.manifest,{configuration:t}),l=ee.pretty(t,s,ee.Type.IDENT),c=ee.pretty(t,o,ee.Type.RANGE),u=ee.pretty(t,this.tag,ee.Type.CODE);return(await Ge.start({configuration:t,stdout:this.context.stdout},async f=>{let h=await xE(s,t);Object.prototype.hasOwnProperty.call(h,this.tag)&&h[this.tag]===o&&f.reportWarning(0,`Tag ${u} is already set to version ${c}`);let p=`/-/package${Mt.getIdentUrl(s)}/dist-tags/${encodeURIComponent(this.tag)}`;await Mt.put(p,o,{configuration:t,registry:a,ident:s,jsonRequest:!0,jsonResponse:!0}),f.reportInfo(0,`Tag ${u} added to version ${c} of package ${l}`)})).exitCode()}};tg.paths=[["npm","tag","add"]],tg.usage=ve.Usage({category:"Npm-related commands",description:"add a tag for a specific version of a package",details:`
+      This command will add a tag to the npm registry for a specific version of a package. If the tag already exists, it will be overwritten.
+    `,examples:[["Add a `beta` tag for version `2.3.4-beta.4` of package `my-pkg`","yarn npm tag add my-pkg@2.3.4-beta.4 beta"]]});var rg=class extends De{constructor(){super(...arguments);this.package=z.String();this.tag=z.String()}async execute(){if(this.tag==="latest")throw new be("The 'latest' tag cannot be removed.");let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);let s=P.parseIdent(this.package),o=or.getPublishRegistry(n.manifest,{configuration:t}),a=ee.pretty(t,this.tag,ee.Type.CODE),l=ee.pretty(t,s,ee.Type.IDENT),c=await xE(s,t);if(!Object.prototype.hasOwnProperty.call(c,this.tag))throw new be(`${a} is not a tag of package ${l}`);return(await Ge.start({configuration:t,stdout:this.context.stdout},async g=>{let f=`/-/package${Mt.getIdentUrl(s)}/dist-tags/${encodeURIComponent(this.tag)}`;await Mt.del(f,{configuration:t,registry:o,ident:s,jsonResponse:!0}),g.reportInfo(0,`Tag ${a} removed from package ${l}`)})).exitCode()}};rg.paths=[["npm","tag","remove"]],rg.usage=ve.Usage({category:"Npm-related commands",description:"remove a tag from a package",details:`
+      This command will remove a tag from a package from the npm registry.
+    `,examples:[["Remove the `beta` tag from package `my-pkg`","yarn npm tag remove my-pkg beta"]]});var ig=class extends De{constructor(){super(...arguments);this.scope=z.String("-s,--scope",{description:"Print username for the registry configured for a given scope"});this.publish=z.Boolean("--publish",!1,{description:"Print username for the publish registry"})}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),i;return this.scope&&this.publish?i=or.getScopeRegistry(this.scope,{configuration:t,type:or.RegistryType.PUBLISH_REGISTRY}):this.scope?i=or.getScopeRegistry(this.scope,{configuration:t}):this.publish?i=or.getPublishRegistry((await Mh(t,this.context.cwd)).manifest,{configuration:t}):i=or.getDefaultRegistry({configuration:t}),(await Ge.start({configuration:t,stdout:this.context.stdout},async s=>{var a,l;let o;try{o=await Mt.get("/-/whoami",{configuration:t,registry:i,authType:Mt.AuthType.ALWAYS_AUTH,jsonResponse:!0,ident:this.scope?P.makeIdent(this.scope,""):void 0})}catch(c){if(((a=c.response)==null?void 0:a.statusCode)===401||((l=c.response)==null?void 0:l.statusCode)===403){s.reportError(41,"Authentication failed - your credentials may have expired");return}else throw c}s.reportInfo(0,o.username)})).exitCode()}};ig.paths=[["npm","whoami"]],ig.usage=ve.Usage({category:"Npm-related commands",description:"display the name of the authenticated user",details:"\n      Print the username associated with the current authentication settings to the standard output.\n\n      When using `-s,--scope`, the username printed will be the one that matches the authentication settings of the registry associated with the given scope (those settings can be overriden using the `npmRegistries` map, and the registry associated with the scope is configured via the `npmScopes` map).\n\n      When using `--publish`, the registry we'll select will by default be the one used when publishing packages (`publishConfig.registry` or `npmPublishRegistry` if available, otherwise we'll fallback to the regular `npmRegistryServer`).\n    ",examples:[["Print username for the default registry","yarn npm whoami"],["Print username for the registry on a given scope","yarn npm whoami --scope company"]]});var r7e={configuration:{npmPublishAccess:{description:"Default access of the published packages",type:"STRING",default:null},npmAuditExcludePackages:{description:"Array of glob patterns of packages to exclude from npm audit",type:"STRING",default:[],isArray:!0},npmAuditIgnoreAdvisories:{description:"Array of glob patterns of advisory IDs to exclude from npm audit",type:"STRING",default:[],isArray:!0}},commands:[Vu,Xu,Zu,_u,$u,tg,eg,rg,ig]},i7e=r7e;var y1={};ut(y1,{default:()=>E7e,patchUtils:()=>ng});var ng={};ut(ng,{applyPatchFile:()=>Hb,diffFolders:()=>E1,ensureUnpatchedDescriptor:()=>h1,extractPackageToDisk:()=>m1,extractPatchFlags:()=>ege,isParentRequired:()=>C1,loadPatchFiles:()=>RE,makeDescriptor:()=>p1,makeLocator:()=>d1,makePatchHash:()=>I1,parseDescriptor:()=>DE,parseLocator:()=>kE,parsePatchFile:()=>PE});var n7e=/^@@ -(\d+)(,(\d+))? 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+`)+(n.hunk.parts[0].noNewlineAtEndOfFile?"":`
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+`),{mode:n})}function Zue(r,e,t){let i=[];for(let n of r.parts)switch(n.type){case"context":case"deletion":{for(let s of n.lines){let o=e[t];if(o==null||!h7e(o,s))return null;t+=1}n.type==="deletion"&&(i.push({type:"splice",index:t-n.lines.length,numToDelete:n.lines.length,linesToInsert:[]}),n.noNewlineAtEndOfFile&&i.push({type:"push",line:""}))}break;case"insertion":i.push({type:"splice",index:t,numToDelete:0,linesToInsert:n.lines}),n.noNewlineAtEndOfFile&&i.push({type:"pop"});break;default:Ie.assertNever(n.type);break}return i}var C7e=/^builtin<([^>]+)>$/;function f1(r,e){let{source:t,selector:i,params:n}=P.parseRange(r);if(t===null)throw new Error("Patch locators must explicitly define their source");let s=i?i.split(/&/).map(c=>K.toPortablePath(c)):[],o=n&&typeof n.locator=="string"?P.parseLocator(n.locator):null,a=n&&typeof n.version=="string"?n.version:null,l=e(t);return{parentLocator:o,sourceItem:l,patchPaths:s,sourceVersion:a}}function DE(r){let{sourceItem:e,...t}=f1(r.range,P.parseDescriptor);return{...t,sourceDescriptor:e}}function kE(r){let{sourceItem:e,...t}=f1(r.reference,P.parseLocator);return{...t,sourceLocator:e}}function h1(r){if(!r.range.startsWith("patch:"))return r;let{sourceItem:e}=f1(r.range,P.parseDescriptor);return e}function _ue({parentLocator:r,sourceItem:e,patchPaths:t,sourceVersion:i,patchHash:n},s){let o=r!==null?{locator:P.stringifyLocator(r)}:{},a=typeof i<"u"?{version:i}:{},l=typeof n<"u"?{hash:n}:{};return P.makeRange({protocol:"patch:",source:s(e),selector:t.join("&"),params:{...a,...l,...o}})}function p1(r,{parentLocator:e,sourceDescriptor:t,patchPaths:i}){return P.makeDescriptor(r,_ue({parentLocator:e,sourceItem:t,patchPaths:i},P.stringifyDescriptor))}function d1(r,{parentLocator:e,sourcePackage:t,patchPaths:i,patchHash:n}){return P.makeLocator(r,_ue({parentLocator:e,sourceItem:t,sourceVersion:t.version,patchPaths:i,patchHash:n},P.stringifyLocator))}function $ue({onAbsolute:r,onRelative:e,onBuiltin:t},i){i.startsWith("~")&&(i=i.slice(1));let s=i.match(C7e);return s!==null?t(s[1]):x.isAbsolute(i)?r(i):e(i)}function ege(r){let e=r.startsWith("~");return e&&(r=r.slice(1)),{optional:e}}function C1(r){return $ue({onAbsolute:()=>!1,onRelative:()=>!0,onBuiltin:()=>!1},r)}async function RE(r,e,t){let i=r!==null?await t.fetcher.fetch(r,t):null,n=i&&i.localPath?{packageFs:new qt(Oe.root),prefixPath:x.relative(Oe.root,i.localPath)}:i;i&&i!==n&&i.releaseFs&&i.releaseFs();let s=await Ie.releaseAfterUseAsync(async()=>await Promise.all(e.map(async o=>{let a=ege(o),l=await $ue({onAbsolute:async()=>await M.readFilePromise(o,"utf8"),onRelative:async()=>{if(n===null)throw new Error("Assertion failed: The parent locator should have been fetched");return await n.packageFs.readFilePromise(x.join(n.prefixPath,o),"utf8")},onBuiltin:async c=>await t.project.configuration.firstHook(u=>u.getBuiltinPatch,t.project,c)},o);return{...a,source:l}})));for(let o of s)typeof o.source=="string"&&(o.source=o.source.replace(/\r\n?/g,`
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+The following error was reported by 'git':
+${s}`);let o=t.startsWith("/")?a=>a.slice(1):a=>a;return n.replace(new RegExp(`(a|b)(${Ie.escapeRegExp(`/${o(t)}/`)})`,"g"),"$1/").replace(new RegExp(`(a|b)${Ie.escapeRegExp(`/${o(i)}/`)}`,"g"),"$1/").replace(new RegExp(Ie.escapeRegExp(`${t}/`),"g"),"").replace(new RegExp(Ie.escapeRegExp(`${i}/`),"g"),"")}function I1(r,e){let t=[];for(let{source:i}of r){if(i===null)continue;let n=PE(i);for(let s of n){let{semverExclusivity:o,...a}=s;o!==null&&e!==null&&!vt.satisfiesWithPrereleases(e,o)||t.push(JSON.stringify(a))}}return li.makeHash(`${3}`,...t).slice(0,6)}function tge(r,{configuration:e,report:t}){for(let i of r.parts)for(let n of i.lines)switch(i.type){case"context":t.reportInfo(null,`  ${ee.pretty(e,n,"grey")}`);break;case"deletion":t.reportError(28,`- ${ee.pretty(e,n,ee.Type.REMOVED)}`);break;case"insertion":t.reportError(28,`+ ${ee.pretty(e,n,ee.Type.ADDED)}`);break;default:Ie.assertNever(i.type)}}var Gb=class{supports(e,t){return!!e.reference.startsWith("patch:")}getLocalPath(e,t){return null}async fetch(e,t){let i=t.checksums.get(e.locatorHash)||null,[n,s,o]=await t.cache.fetchPackageFromCache(e,i,{onHit:()=>t.report.reportCacheHit(e),onMiss:()=>t.report.reportCacheMiss(e,`${P.prettyLocator(t.project.configuration,e)} can't be found in the cache and will be fetched from the disk`),loader:()=>this.patchPackage(e,t),skipIntegrityCheck:t.skipIntegrityCheck,...t.cacheOptions});return{packageFs:n,releaseFs:s,prefixPath:P.getIdentVendorPath(e),localPath:this.getLocalPath(e,t),checksum:o}}async patchPackage(e,t){let{parentLocator:i,sourceLocator:n,sourceVersion:s,patchPaths:o}=kE(e),a=await RE(i,o,t),l=await M.mktempPromise(),c=x.join(l,"current.zip"),u=await t.fetcher.fetch(n,t),g=P.getIdentVendorPath(e),f=await sn(),h=new Wr(c,{libzip:f,create:!0,level:t.project.configuration.get("compressionLevel")});await Ie.releaseAfterUseAsync(async()=>{await h.copyPromise(g,u.prefixPath,{baseFs:u.packageFs,stableSort:!0})},u.releaseFs),h.saveAndClose();for(let{source:p,optional:C}of a){if(p===null)continue;let y=new Wr(c,{libzip:f,level:t.project.configuration.get("compressionLevel")}),B=new qt(x.resolve(Oe.root,g),{baseFs:y});try{await Hb(PE(p),{baseFs:B,version:s})}catch(v){if(!(v instanceof Ep))throw v;let D=t.project.configuration.get("enableInlineHunks"),L=!D&&!C?" (set enableInlineHunks for details)":"",H=`${P.prettyLocator(t.project.configuration,e)}: ${v.message}${L}`,j=$=>{!D||tge(v.hunk,{configuration:t.project.configuration,report:$})};if(y.discardAndClose(),C){t.report.reportWarningOnce(66,H,{reportExtra:j});continue}else throw new at(66,H,j)}y.saveAndClose()}return new Wr(c,{libzip:f,level:t.project.configuration.get("compressionLevel")})}};var Yb=class{supportsDescriptor(e,t){return!!e.range.startsWith("patch:")}supportsLocator(e,t){return!!e.reference.startsWith("patch:")}shouldPersistResolution(e,t){return!1}bindDescriptor(e,t,i){let{patchPaths:n}=DE(e);return n.every(s=>!C1(s))?e:P.bindDescriptor(e,{locator:P.stringifyLocator(t)})}getResolutionDependencies(e,t){let{sourceDescriptor:i}=DE(e);return[i]}async getCandidates(e,t,i){if(!i.fetchOptions)throw new Error("Assertion failed: This resolver cannot be used unless a fetcher is configured");let{parentLocator:n,sourceDescriptor:s,patchPaths:o}=DE(e),a=await RE(n,o,i.fetchOptions),l=t.get(s.descriptorHash);if(typeof l>"u")throw new Error("Assertion failed: The dependency should have been resolved");let c=I1(a,l.version);return[d1(e,{parentLocator:n,sourcePackage:l,patchPaths:o,patchHash:c})]}async getSatisfying(e,t,i){return null}async resolve(e,t){let{sourceLocator:i}=kE(e);return{...await t.resolver.resolve(i,t),...e}}};var sg=class extends De{constructor(){super(...arguments);this.save=z.Boolean("-s,--save",!1,{description:"Add the patch to your resolution entries"});this.patchFolder=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState();let s=x.resolve(this.context.cwd,K.toPortablePath(this.patchFolder)),o=x.join(s,"../source"),a=x.join(s,"../.yarn-patch.json");if(!M.existsSync(o))throw new be("The argument folder didn't get created by 'yarn patch'");let l=await E1(o,s),c=await M.readJsonPromise(a),u=P.parseLocator(c.locator,!0);if(!i.storedPackages.has(u.locatorHash))throw new be("No package found in the project for the given locator");if(!this.save){this.context.stdout.write(l);return}let g=t.get("patchFolder"),f=x.join(g,`${P.slugifyLocator(u)}.patch`);await M.mkdirPromise(g,{recursive:!0}),await M.writeFilePromise(f,l);let h=new Map;for(let p of i.storedPackages.values()){if(P.isVirtualLocator(p))continue;let C=p.dependencies.get(u.identHash);if(!C)continue;let y=P.isVirtualDescriptor(C)?P.devirtualizeDescriptor(C):C,B=h1(y),v=i.storedResolutions.get(B.descriptorHash);if(!v)throw new Error("Assertion failed: Expected the resolution to have been registered");if(!i.storedPackages.get(v))throw new Error("Assertion failed: Expected the package to have been registered");let L=i.originalPackages.get(p.locatorHash);if(!L)throw new Error("Assertion failed: Expected the original package to have been registered");let H=L.dependencies.get(C.identHash);if(!H)throw new Error("Assertion failed: Expected the original dependency to have been registered");h.set(H.descriptorHash,H)}for(let p of h.values()){let C=p1(p,{parentLocator:null,sourceDescriptor:P.convertLocatorToDescriptor(u),sourceVersion:null,patchPaths:[`./${x.relative(i.cwd,f)}`]});i.topLevelWorkspace.manifest.resolutions.push({pattern:{descriptor:{fullName:P.stringifyIdent(C),description:p.range}},reference:C.range})}await i.persist()}};sg.paths=[["patch-commit"]],sg.usage=ve.Usage({description:"generate a patch out of a directory",details:"\n      By default, this will print a patchfile on stdout based on the diff between the folder passed in and the original version of the package. Such file is suitable for consumption with the `patch:` protocol.\n\n      With the `-s,--save` option set, the patchfile won't be printed on stdout anymore and will instead be stored within a local file (by default kept within `.yarn/patches`, but configurable via the `patchFolder` setting). A `resolutions` entry will also be added to your top-level manifest, referencing the patched package via the `patch:` protocol.\n\n      Note that only folders generated by `yarn patch` are accepted as valid input for `yarn patch-commit`.\n    "});var og=class extends De{constructor(){super(...arguments);this.json=z.Boolean("--json",!1,{description:"Format the output as an NDJSON stream"});this.package=z.String()}async execute(){let t=await ye.find(this.context.cwd,this.context.plugins),{project:i,workspace:n}=await je.find(t,this.context.cwd),s=await Rt.find(t);if(!n)throw new ct(i.cwd,this.context.cwd);await i.restoreInstallState();let o=P.parseLocator(this.package);if(o.reference==="unknown"){let a=Ie.mapAndFilter([...i.storedPackages.values()],l=>l.identHash!==o.identHash?Ie.mapAndFilter.skip:P.isVirtualLocator(l)?Ie.mapAndFilter.skip:l);if(a.length===0)throw new be("No package found in the project for the given locator");if(a.length>1)throw new be(`Multiple candidate packages found; explicitly choose one of them (use \`yarn why <package>\` to get more information as to who depends on them):
+${a.map(l=>`
+- ${P.prettyLocator(t,l)}`).join("")}`);o=a[0]}if(!i.storedPackages.has(o.locatorHash))throw new be("No package found in the project for the given locator");await Ge.start({configuration:t,json:this.json,stdout:this.context.stdout},async a=>{let l=await m1(o,{cache:s,project:i});a.reportJson({locator:P.stringifyLocator(o),path:K.fromPortablePath(l)}),a.reportInfo(0,`Package ${P.prettyLocator(t,o)} got extracted with success!`),a.reportInfo(0,`You can now edit the following folder: ${ee.pretty(t,K.fromPortablePath(l),"magenta")}`),a.reportInfo(0,`Once you are done run ${ee.pretty(t,`yarn patch-commit -s ${process.platform==="win32"?'"':""}${K.fromPortablePath(l)}${process.platform==="win32"?'"':""}`,"cyan")} and Yarn will store a patchfile based on your changes.`)})}};og.paths=[["patch"]],og.usage=ve.Usage({description:"prepare a package for patching",details:"\n      This command will cause a package to be extracted in a temporary directory intended to be editable at will.\n      \n      Once you're done with your changes, run `yarn patch-commit -s <path>` (with `<path>` being the temporary directory you received) to generate a patchfile and register it into your top-level manifest via the `patch:` protocol. Run `yarn patch-commit -h` for more details.\n    "});var m7e={configuration:{enableInlineHunks:{description:"If true, the installs will print unmatched patch hunks",type:"BOOLEAN",default:!1},patchFolder:{description:"Folder where the patch files must be written",type:"ABSOLUTE_PATH",default:"./.yarn/patches"}},commands:[sg,og],fetchers:[Gb],resolvers:[Yb]},E7e=m7e;var b1={};ut(b1,{default:()=>w7e});var jb=class{supportsPackage(e,t){return this.isEnabled(t)}async findPackageLocation(e,t){if(!this.isEnabled(t))throw new Error("Assertion failed: Expected the pnpm linker to be enabled");let i=B1(),n=t.project.installersCustomData.get(i);if(!n)throw new be(`The project in ${ee.pretty(t.project.configuration,`${t.project.cwd}/package.json`,ee.Type.PATH)} doesn't seem to have been installed - running an install there might help`);let s=n.pathByLocator.get(e.locatorHash);if(typeof s>"u")throw new be(`Couldn't find ${P.prettyLocator(t.project.configuration,e)} in the currently installed pnpm map - running an install might help`);return s}async findPackageLocator(e,t){if(!this.isEnabled(t))return null;let i=B1(),n=t.project.installersCustomData.get(i);if(!n)throw new be(`The project in ${ee.pretty(t.project.configuration,`${t.project.cwd}/package.json`,ee.Type.PATH)} doesn't seem to have been installed - running an install there might help`);let s=e.match(/(^.*\/node_modules\/(@[^/]*\/)?[^/]+)(\/.*$)/);if(s){let l=n.locatorByPath.get(s[1]);if(l)return l}let o=e,a=e;do{a=o,o=x.dirname(a);let l=n.locatorByPath.get(a);if(l)return l}while(o!==a);return null}makeInstaller(e){return new w1(e)}isEnabled(e){return e.project.configuration.get("nodeLinker")==="pnpm"}},w1=class{constructor(e){this.opts=e;this.asyncActions=new Ie.AsyncActions(10);this.customData={pathByLocator:new Map,locatorByPath:new Map}}getCustomDataKey(){return B1()}attachCustomData(e){}async installPackage(e,t,i){switch(e.linkType){case"SOFT":return this.installPackageSoft(e,t,i);case"HARD":return this.installPackageHard(e,t,i)}throw new Error("Assertion failed: Unsupported package link type")}async installPackageSoft(e,t,i){let n=x.resolve(t.packageFs.getRealPath(),t.prefixPath);return this.customData.pathByLocator.set(e.locatorHash,n),{packageLocation:n,buildDirective:null}}async installPackageHard(e,t,i){var u;let n=I7e(e,{project:this.opts.project});this.customData.locatorByPath.set(n,P.stringifyLocator(e)),this.customData.pathByLocator.set(e.locatorHash,n),i.holdFetchResult(this.asyncActions.set(e.locatorHash,async()=>{await M.mkdirPromise(n,{recursive:!0}),await M.copyPromise(n,t.prefixPath,{baseFs:t.packageFs,overwrite:!1})}));let o=P.isVirtualLocator(e)?P.devirtualizeLocator(e):e,a={manifest:(u=await ot.tryFind(t.prefixPath,{baseFs:t.packageFs}))!=null?u:new ot,misc:{hasBindingGyp:po.hasBindingGyp(t)}},l=this.opts.project.getDependencyMeta(o,e.version),c=po.extractBuildScripts(e,a,l,{configuration:this.opts.project.configuration,report:this.opts.report});return{packageLocation:n,buildDirective:c}}async attachInternalDependencies(e,t){this.opts.project.configuration.get("nodeLinker")==="pnpm"&&(!rge(e,{project:this.opts.project})||this.asyncActions.reduce(e.locatorHash,async i=>{await i;let n=this.customData.pathByLocator.get(e.locatorHash);if(typeof n>"u")throw new Error(`Assertion failed: Expected the package to have been registered (${P.stringifyLocator(e)})`);let s=x.join(n,xt.nodeModules),o=[],a=await ige(s);for(let[l,c]of t){let u=c;rge(c,{project:this.opts.project})||(this.opts.report.reportWarningOnce(0,"The pnpm linker doesn't support providing different versions to workspaces' peer dependencies"),u=P.devirtualizeLocator(c));let g=this.customData.pathByLocator.get(u.locatorHash);if(typeof g>"u")throw new Error(`Assertion failed: Expected the package to have been registered (${P.stringifyLocator(c)})`);let f=P.stringifyIdent(l),h=x.join(s,f),p=x.relative(x.dirname(h),g),C=a.get(f);a.delete(f),o.push(Promise.resolve().then(async()=>{if(C){if(C.isSymbolicLink()&&await M.readlinkPromise(h)===p)return;await M.removePromise(h)}await M.mkdirpPromise(x.dirname(h)),process.platform=="win32"?await M.symlinkPromise(g,h,"junction"):await M.symlinkPromise(p,h)}))}o.push(nge(s,a)),await Promise.all(o)}))}async attachExternalDependents(e,t){throw new Error("External dependencies haven't been implemented for the pnpm linker")}async finalizeInstall(){let e=oge(this.opts.project);if(this.opts.project.configuration.get("nodeLinker")!=="pnpm")await M.removePromise(e);else{let t=[],i=new Set;for(let s of this.customData.pathByLocator.values()){let o=x.contains(e,s);if(o!==null){let[a,,...l]=o.split(x.sep);i.add(a);let c=x.join(e,a);t.push(M.readdirPromise(c).then(u=>Promise.all(u.map(async g=>{let f=x.join(c,g);if(g===xt.nodeModules){let h=await ige(f);return h.delete(l.join(x.sep)),nge(f,h)}else return M.removePromise(f)}))).catch(u=>{if(u.code!=="ENOENT")throw u}))}}let n;try{n=await M.readdirPromise(e)}catch{n=[]}for(let s of n)i.has(s)||t.push(M.removePromise(x.join(e,s)));await Promise.all(t)}return await this.asyncActions.wait(),await Q1(e),this.opts.project.configuration.get("nodeLinker")!=="node-modules"&&await Q1(sge(this.opts.project)),{customData:this.customData}}};function B1(){return JSON.stringify({name:"PnpmInstaller",version:2})}function sge(r){return x.join(r.cwd,xt.nodeModules)}function oge(r){return x.join(sge(r),".store")}function I7e(r,{project:e}){let t=P.slugifyLocator(r),i=P.getIdentVendorPath(r);return x.join(oge(e),t,i)}function rge(r,{project:e}){return!P.isVirtualLocator(r)||!e.tryWorkspaceByLocator(r)}async function ige(r){let e=new Map,t=[];try{t=await M.readdirPromise(r,{withFileTypes:!0})}catch(i){if(i.code!=="ENOENT")throw i}try{for(let i of t)if(!i.name.startsWith("."))if(i.name.startsWith("@")){let n=await M.readdirPromise(x.join(r,i.name),{withFileTypes:!0});if(n.length===0)e.set(i.name,i);else for(let s of n)e.set(`${i.name}/${s.name}`,s)}else e.set(i.name,i)}catch(i){if(i.code!=="ENOENT")throw i}return e}async function nge(r,e){var n;let t=[],i=new Set;for(let s of e.keys()){t.push(M.removePromise(x.join(r,s)));let o=(n=P.tryParseIdent(s))==null?void 0:n.scope;o&&i.add(`@${o}`)}return Promise.all(t).then(()=>Promise.all([...i].map(s=>Q1(x.join(r,s)))))}async function Q1(r){try{await M.rmdirPromise(r)}catch(e){if(e.code!=="ENOENT"&&e.code!=="ENOTEMPTY")throw e}}var y7e={linkers:[jb]},w7e=y7e;var mQ=()=>({modules:new Map([["@yarnpkg/cli",Rm],["@yarnpkg/core",im],["@yarnpkg/fslib",qp],["@yarnpkg/libzip",SC],["@yarnpkg/parsers",$p],["@yarnpkg/shell",DC],["clipanion",k$(ld)],["semver",B7e],["typanion",gn],["yup",Q7e],["@yarnpkg/plugin-essentials",pO],["@yarnpkg/plugin-compat",IO],["@yarnpkg/plugin-dlx",yO],["@yarnpkg/plugin-file",bO],["@yarnpkg/plugin-git",hO],["@yarnpkg/plugin-github",SO],["@yarnpkg/plugin-http",vO],["@yarnpkg/plugin-init",kO],["@yarnpkg/plugin-link",RO],["@yarnpkg/plugin-nm",uM],["@yarnpkg/plugin-npm",A1],["@yarnpkg/plugin-npm-cli",g1],["@yarnpkg/plugin-pack",i1],["@yarnpkg/plugin-patch",y1],["@yarnpkg/plugin-pnp",eM],["@yarnpkg/plugin-pnpm",b1]]),plugins:new Set(["@yarnpkg/plugin-essentials","@yarnpkg/plugin-compat","@yarnpkg/plugin-dlx","@yarnpkg/plugin-file","@yarnpkg/plugin-git","@yarnpkg/plugin-github","@yarnpkg/plugin-http","@yarnpkg/plugin-init","@yarnpkg/plugin-link","@yarnpkg/plugin-nm","@yarnpkg/plugin-npm","@yarnpkg/plugin-npm-cli","@yarnpkg/plugin-pack","@yarnpkg/plugin-patch","@yarnpkg/plugin-pnp","@yarnpkg/plugin-pnpm"])});z0({binaryVersion:Lr||"<unknown>",pluginConfiguration:mQ()});})();
+/*!
+ * buildToken
+ * Builds OAuth token prefix (helper function)
+ *
+ * @name buildToken
+ * @function
+ * @param {GitUrl} obj The parsed Git url object.
+ * @return {String} token prefix
  */
-
-/* So you can 'var VError = require('verror')' */
-module.exports = VError;
-/* For compatibility */
-VError.VError = VError;
-/* Other exported classes */
-VError.SError = SError;
-VError.WError = WError;
-VError.MultiError = MultiError;
-
-/*
- * Common function used to parse constructor arguments for VError, WError, and
- * SError.  Named arguments to this function:
- *
- *     strict		force strict interpretation of sprintf arguments, even
- *     			if the options in "argv" don't say so
- *
- *     argv		error's constructor arguments, which are to be
- *     			interpreted as described in README.md.  For quick
- *     			reference, "argv" has one of the following forms:
- *
- *          [ sprintf_args... ]           (argv[0] is a string)
- *          [ cause, sprintf_args... ]    (argv[0] is an Error)
- *          [ options, sprintf_args... ]  (argv[0] is an object)
- *
- * This function normalizes these forms, producing an object with the following
- * properties:
- *
- *    options           equivalent to "options" in third form.  This will never
- *    			be a direct reference to what the caller passed in
- *    			(i.e., it may be a shallow copy), so it can be freely
- *    			modified.
+/*!
+ * fill-range <https://github.com/jonschlinkert/fill-range>
  *
- *    shortmessage      result of sprintf(sprintf_args), taking options.strict
- *    			into account as described in README.md.
- */
-function parseConstructorArguments(args)
-{
-	var argv, options, sprintf_args, shortmessage, k;
-
-	mod_assertplus.object(args, 'args');
-	mod_assertplus.bool(args.strict, 'args.strict');
-	mod_assertplus.array(args.argv, 'args.argv');
-	argv = args.argv;
-
-	/*
-	 * First, figure out which form of invocation we've been given.
-	 */
-	if (argv.length === 0) {
-		options = {};
-		sprintf_args = [];
-	} else if (mod_isError(argv[0])) {
-		options = { 'cause': argv[0] };
-		sprintf_args = argv.slice(1);
-	} else if (typeof (argv[0]) === 'object') {
-		options = {};
-		for (k in argv[0]) {
-			options[k] = argv[0][k];
-		}
-		sprintf_args = argv.slice(1);
-	} else {
-		mod_assertplus.string(argv[0],
-		    'first argument to VError, SError, or WError ' +
-		    'constructor must be a string, object, or Error');
-		options = {};
-		sprintf_args = argv;
-	}
-
-	/*
-	 * Now construct the error's message.
-	 *
-	 * extsprintf (which we invoke here with our caller's arguments in order
-	 * to construct this Error's message) is strict in its interpretation of
-	 * values to be processed by the "%s" specifier.  The value passed to
-	 * extsprintf must actually be a string or something convertible to a
-	 * String using .toString().  Passing other values (notably "null" and
-	 * "undefined") is considered a programmer error.  The assumption is
-	 * that if you actually want to print the string "null" or "undefined",
-	 * then that's easy to do that when you're calling extsprintf; on the
-	 * other hand, if you did NOT want that (i.e., there's actually a bug
-	 * where the program assumes some variable is non-null and tries to
-	 * print it, which might happen when constructing a packet or file in
-	 * some specific format), then it's better to stop immediately than
-	 * produce bogus output.
-	 *
-	 * However, sometimes the bug is only in the code calling VError, and a
-	 * programmer might prefer to have the error message contain "null" or
-	 * "undefined" rather than have the bug in the error path crash the
-	 * program (making the first bug harder to identify).  For that reason,
-	 * by default VError converts "null" or "undefined" arguments to their
-	 * string representations and passes those to extsprintf.  Programmers
-	 * desiring the strict behavior can use the SError class or pass the
-	 * "strict" option to the VError constructor.
-	 */
-	mod_assertplus.object(options);
-	if (!options.strict && !args.strict) {
-		sprintf_args = sprintf_args.map(function (a) {
-			return (a === null ? 'null' :
-			    a === undefined ? 'undefined' : a);
-		});
-	}
-
-	if (sprintf_args.length === 0) {
-		shortmessage = '';
-	} else {
-		shortmessage = sprintf.apply(null, sprintf_args);
-	}
-
-	return ({
-	    'options': options,
-	    'shortmessage': shortmessage
-	});
-}
-
-/*
- * See README.md for reference documentation.
- */
-function VError()
-{
-	var args, obj, parsed, cause, ctor, message, k;
-
-	args = Array.prototype.slice.call(arguments, 0);
-
-	/*
-	 * This is a regrettable pattern, but JavaScript's built-in Error class
-	 * is defined to work this way, so we allow the constructor to be called
-	 * without "new".
-	 */
-	if (!(this instanceof VError)) {
-		obj = Object.create(VError.prototype);
-		VError.apply(obj, arguments);
-		return (obj);
-	}
-
-	/*
-	 * For convenience and backwards compatibility, we support several
-	 * different calling forms.  Normalize them here.
-	 */
-	parsed = parseConstructorArguments({
-	    'argv': args,
-	    'strict': false
-	});
-
-	/*
-	 * If we've been given a name, apply it now.
-	 */
-	if (parsed.options.name) {
-		mod_assertplus.string(parsed.options.name,
-		    'error\'s "name" must be a string');
-		this.name = parsed.options.name;
-	}
-
-	/*
-	 * For debugging, we keep track of the original short message (attached
-	 * this Error particularly) separately from the complete message (which
-	 * includes the messages of our cause chain).
-	 */
-	this.jse_shortmsg = parsed.shortmessage;
-	message = parsed.shortmessage;
-
-	/*
-	 * If we've been given a cause, record a reference to it and update our
-	 * message appropriately.
-	 */
-	cause = parsed.options.cause;
-	if (cause) {
-		mod_assertplus.ok(mod_isError(cause), 'cause is not an Error');
-		this.jse_cause = cause;
-
-		if (!parsed.options.skipCauseMessage) {
-			message += ': ' + cause.message;
-		}
-	}
-
-	/*
-	 * If we've been given an object with properties, shallow-copy that
-	 * here.  We don't want to use a deep copy in case there are non-plain
-	 * objects here, but we don't want to use the original object in case
-	 * the caller modifies it later.
-	 */
-	this.jse_info = {};
-	if (parsed.options.info) {
-		for (k in parsed.options.info) {
-			this.jse_info[k] = parsed.options.info[k];
-		}
-	}
-
-	this.message = message;
-	Error.call(this, message);
-
-	if (Error.captureStackTrace) {
-		ctor = parsed.options.constructorOpt || this.constructor;
-		Error.captureStackTrace(this, ctor);
-	}
-
-	return (this);
-}
-
-mod_util.inherits(VError, Error);
-VError.prototype.name = 'VError';
-
-VError.prototype.toString = function ve_toString()
-{
-	var str = (this.hasOwnProperty('name') && this.name ||
-		this.constructor.name || this.constructor.prototype.name);
-	if (this.message)
-		str += ': ' + this.message;
-
-	return (str);
-};
-
-/*
- * This method is provided for compatibility.  New callers should use
- * VError.cause() instead.  That method also uses the saner `null` return value
- * when there is no cause.
+ * Copyright (c) 2014-present, Jon Schlinkert.
+ * Licensed under the MIT License.
  */
-VError.prototype.cause = function ve_cause()
-{
-	var cause = VError.cause(this);
-	return (cause === null ? undefined : cause);
-};
-
-/*
- * Static methods
+/*!
+ * is-extglob <https://github.com/jonschlinkert/is-extglob>
  *
- * These class-level methods are provided so that callers can use them on
- * instances of Errors that are not VErrors.  New interfaces should be provided
- * only using static methods to eliminate the class of programming mistake where
- * people fail to check whether the Error object has the corresponding methods.
- */
-
-VError.cause = function (err)
-{
-	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
-	return (mod_isError(err.jse_cause) ? err.jse_cause : null);
-};
-
-VError.info = function (err)
-{
-	var rv, cause, k;
-
-	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
-	cause = VError.cause(err);
-	if (cause !== null) {
-		rv = VError.info(cause);
-	} else {
-		rv = {};
-	}
-
-	if (typeof (err.jse_info) == 'object' && err.jse_info !== null) {
-		for (k in err.jse_info) {
-			rv[k] = err.jse_info[k];
-		}
-	}
-
-	return (rv);
-};
-
-VError.findCauseByName = function (err, name)
-{
-	var cause;
-
-	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
-	mod_assertplus.string(name, 'name');
-	mod_assertplus.ok(name.length > 0, 'name cannot be empty');
-
-	for (cause = err; cause !== null; cause = VError.cause(cause)) {
-		mod_assertplus.ok(mod_isError(cause));
-		if (cause.name == name) {
-			return (cause);
-		}
-	}
-
-	return (null);
-};
-
-VError.hasCauseWithName = function (err, name)
-{
-	return (VError.findCauseByName(err, name) !== null);
-};
-
-VError.fullStack = function (err)
-{
-	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
-
-	var cause = VError.cause(err);
-
-	if (cause) {
-		return (err.stack + '\ncaused by: ' + VError.fullStack(cause));
-	}
-
-	return (err.stack);
-};
-
-VError.errorFromList = function (errors)
-{
-	mod_assertplus.arrayOfObject(errors, 'errors');
-
-	if (errors.length === 0) {
-		return (null);
-	}
-
-	errors.forEach(function (e) {
-		mod_assertplus.ok(mod_isError(e));
-	});
-
-	if (errors.length == 1) {
-		return (errors[0]);
-	}
-
-	return (new MultiError(errors));
-};
-
-VError.errorForEach = function (err, func)
-{
-	mod_assertplus.ok(mod_isError(err), 'err must be an Error');
-	mod_assertplus.func(func, 'func');
-
-	if (err instanceof MultiError) {
-		err.errors().forEach(function iterError(e) { func(e); });
-	} else {
-		func(err);
-	}
-};
-
-
-/*
- * SError is like VError, but stricter about types.  You cannot pass "null" or
- * "undefined" as string arguments to the formatter.
- */
-function SError()
-{
-	var args, obj, parsed, options;
-
-	args = Array.prototype.slice.call(arguments, 0);
-	if (!(this instanceof SError)) {
-		obj = Object.create(SError.prototype);
-		SError.apply(obj, arguments);
-		return (obj);
-	}
-
-	parsed = parseConstructorArguments({
-	    'argv': args,
-	    'strict': true
-	});
-
-	options = parsed.options;
-	VError.call(this, options, '%s', parsed.shortmessage);
-
-	return (this);
-}
-
-/*
- * We don't bother setting SError.prototype.name because once constructed,
- * SErrors are just like VErrors.
- */
-mod_util.inherits(SError, VError);
-
-
-/*
- * Represents a collection of errors for the purpose of consumers that generally
- * only deal with one error.  Callers can extract the individual errors
- * contained in this object, but may also just treat it as a normal single
- * error, in which case a summary message will be printed.
- */
-function MultiError(errors)
-{
-	mod_assertplus.array(errors, 'list of errors');
-	mod_assertplus.ok(errors.length > 0, 'must be at least one error');
-	this.ase_errors = errors;
-
-	VError.call(this, {
-	    'cause': errors[0]
-	}, 'first of %d error%s', errors.length, errors.length == 1 ? '' : 's');
-}
-
-mod_util.inherits(MultiError, VError);
-MultiError.prototype.name = 'MultiError';
-
-MultiError.prototype.errors = function me_errors()
-{
-	return (this.ase_errors.slice(0));
-};
-
-
-/*
- * See README.md for reference details.
- */
-function WError()
-{
-	var args, obj, parsed, options;
-
-	args = Array.prototype.slice.call(arguments, 0);
-	if (!(this instanceof WError)) {
-		obj = Object.create(WError.prototype);
-		WError.apply(obj, args);
-		return (obj);
-	}
-
-	parsed = parseConstructorArguments({
-	    'argv': args,
-	    'strict': false
-	});
-
-	options = parsed.options;
-	options['skipCauseMessage'] = true;
-	VError.call(this, options, '%s', parsed.shortmessage);
-
-	return (this);
-}
-
-mod_util.inherits(WError, VError);
-WError.prototype.name = 'WError';
-
-WError.prototype.toString = function we_toString()
-{
-	var str = (this.hasOwnProperty('name') && this.name ||
-		this.constructor.name || this.constructor.prototype.name);
-	if (this.message)
-		str += ': ' + this.message;
-	if (this.jse_cause && this.jse_cause.message)
-		str += '; caused by ' + this.jse_cause.toString();
-
-	return (str);
-};
-
-/*
- * For purely historical reasons, WError's cause() function allows you to set
- * the cause.
+ * Copyright (c) 2014-2016, Jon Schlinkert.
+ * Licensed under the MIT License.
  */
-WError.prototype.cause = function we_cause(c)
-{
-	if (mod_isError(c))
-		this.jse_cause = c;
-
-	return (this.jse_cause);
-};
-
-
-/***/ }),
-/* 961 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/*
- * extsprintf.js: extended POSIX-style sprintf
+/*!
+ * is-glob <https://github.com/jonschlinkert/is-glob>
+ *
+ * Copyright (c) 2014-2017, Jon Schlinkert.
+ * Released under the MIT License.
  */
-
-var mod_assert = __webpack_require__(28);
-var mod_util = __webpack_require__(3);
-
-/*
- * Public interface
+/*!
+ * is-number <https://github.com/jonschlinkert/is-number>
+ *
+ * Copyright (c) 2014-present, Jon Schlinkert.
+ * Released under the MIT License.
  */
-exports.sprintf = jsSprintf;
-exports.printf = jsPrintf;
-exports.fprintf = jsFprintf;
-
-/*
- * Stripped down version of s[n]printf(3c).  We make a best effort to throw an
- * exception when given a format string we don't understand, rather than
- * ignoring it, so that we won't break existing programs if/when we go implement
- * the rest of this.
+/*!
+ * is-windows <https://github.com/jonschlinkert/is-windows>
  *
- * This implementation currently supports specifying
- *	- field alignment ('-' flag),
- * 	- zero-pad ('0' flag)
- *	- always show numeric sign ('+' flag),
- *	- field width
- *	- conversions for strings, decimal integers, and floats (numbers).
- *	- argument size specifiers.  These are all accepted but ignored, since
- *	  Javascript has no notion of the physical size of an argument.
+ * Copyright © 2015-2018, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+/*!
+ * to-regex-range <https://github.com/micromatch/to-regex-range>
  *
- * Everything else is currently unsupported, most notably precision, unsigned
- * numbers, non-decimal numbers, and characters.
+ * Copyright (c) 2015-present, Jon Schlinkert.
+ * Released under the MIT License.
  */
-function jsSprintf(ofmt)
-{
-	var regex = [
-	    '([^%]*)',				/* normal text */
-	    '%',				/* start of format */
-	    '([\'\\-+ #0]*?)',			/* flags (optional) */
-	    '([1-9]\\d*)?',			/* width (optional) */
-	    '(\\.([1-9]\\d*))?',		/* precision (optional) */
-	    '[lhjztL]*?',			/* length mods (ignored) */
-	    '([diouxXfFeEgGaAcCsSp%jr])'	/* conversion */
-	].join('');
-
-	var re = new RegExp(regex);
-
-	/* variadic arguments used to fill in conversion specifiers */
-	var args = Array.prototype.slice.call(arguments, 1);
-	/* remaining format string */
-	var fmt = ofmt;
-
-	/* components of the current conversion specifier */
-	var flags, width, precision, conversion;
-	var left, pad, sign, arg, match;
-
-	/* return value */
-	var ret = '';
-
-	/* current variadic argument (1-based) */
-	var argn = 1;
-	/* 0-based position in the format string that we've read */
-	var posn = 0;
-	/* 1-based position in the format string of the current conversion */
-	var convposn;
-	/* current conversion specifier */
-	var curconv;
-
-	mod_assert.equal('string', typeof (fmt),
-	    'first argument must be a format string');
-
-	while ((match = re.exec(fmt)) !== null) {
-		ret += match[1];
-		fmt = fmt.substring(match[0].length);
-
-		/*
-		 * Update flags related to the current conversion specifier's
-		 * position so that we can report clear error messages.
-		 */
-		curconv = match[0].substring(match[1].length);
-		convposn = posn + match[1].length + 1;
-		posn += match[0].length;
-
-		flags = match[2] || '';
-		width = match[3] || 0;
-		precision = match[4] || '';
-		conversion = match[6];
-		left = false;
-		sign = false;
-		pad = ' ';
-
-		if (conversion == '%') {
-			ret += '%';
-			continue;
-		}
-
-		if (args.length === 0) {
-			throw (jsError(ofmt, convposn, curconv,
-			    'has no matching argument ' +
-			    '(too few arguments passed)'));
-		}
-
-		arg = args.shift();
-		argn++;
-
-		if (flags.match(/[\' #]/)) {
-			throw (jsError(ofmt, convposn, curconv,
-			    'uses unsupported flags'));
-		}
-
-		if (precision.length > 0) {
-			throw (jsError(ofmt, convposn, curconv,
-			    'uses non-zero precision (not supported)'));
-		}
-
-		if (flags.match(/-/))
-			left = true;
-
-		if (flags.match(/0/))
-			pad = '0';
-
-		if (flags.match(/\+/))
-			sign = true;
-
-		switch (conversion) {
-		case 's':
-			if (arg === undefined || arg === null) {
-				throw (jsError(ofmt, convposn, curconv,
-				    'attempted to print undefined or null ' +
-				    'as a string (argument ' + argn + ' to ' +
-				    'sprintf)'));
-			}
-			ret += doPad(pad, width, left, arg.toString());
-			break;
-
-		case 'd':
-			arg = Math.floor(arg);
-			/*jsl:fallthru*/
-		case 'f':
-			sign = sign && arg > 0 ? '+' : '';
-			ret += sign + doPad(pad, width, left,
-			    arg.toString());
-			break;
-
-		case 'x':
-			ret += doPad(pad, width, left, arg.toString(16));
-			break;
-
-		case 'j': /* non-standard */
-			if (width === 0)
-				width = 10;
-			ret += mod_util.inspect(arg, false, width);
-			break;
-
-		case 'r': /* non-standard */
-			ret += dumpException(arg);
-			break;
-
-		default:
-			throw (jsError(ofmt, convposn, curconv,
-			    'is not supported'));
-		}
-	}
-
-	ret += fmt;
-	return (ret);
-}
-
-function jsError(fmtstr, convposn, curconv, reason) {
-	mod_assert.equal(typeof (fmtstr), 'string');
-	mod_assert.equal(typeof (curconv), 'string');
-	mod_assert.equal(typeof (convposn), 'number');
-	mod_assert.equal(typeof (reason), 'string');
-	return (new Error('format string "' + fmtstr +
-	    '": conversion specifier "' + curconv + '" at character ' +
-	    convposn + ' ' + reason));
-}
-
-function jsPrintf() {
-	var args = Array.prototype.slice.call(arguments);
-	args.unshift(process.stdout);
-	jsFprintf.apply(null, args);
-}
-
-function jsFprintf(stream) {
-	var args = Array.prototype.slice.call(arguments, 1);
-	return (stream.write(jsSprintf.apply(this, args)));
-}
-
-function doPad(chr, width, left, str)
-{
-	var ret = str;
-
-	while (ret.length < width) {
-		if (left)
-			ret += chr;
-		else
-			ret = chr + ret;
-	}
+/**
+  @license
+  Copyright (c) 2015, Rebecca Turner
 
-	return (ret);
-}
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
 
-/*
- * This function dumps long stack traces for exceptions having a cause() method.
- * See node-verror for an example.
+  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+  REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+  LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+  OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+  PERFORMANCE OF THIS SOFTWARE.
  */
-function dumpException(ex)
-{
-	var ret;
-
-	if (!(ex instanceof Error))
-		throw (new Error(jsSprintf('invalid type for %%r: %j', ex)));
-
-	/* Note that V8 prepends "ex.stack" with ex.toString(). */
-	ret = 'EXCEPTION: ' + ex.constructor.name + ': ' + ex.stack;
-
-	if (ex.cause && typeof (ex.cause) === 'function') {
-		var cex = ex.cause();
-		if (cex) {
-			ret += '\nCaused by: ' + dumpException(cex);
-		}
-	}
-
-	return (ret);
-}
-
-
-/***/ }),
-/* 962 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-const lenient = __webpack_require__(963);
-
-module.exports = (val, opts) => {
-	val = String(val).trim();
-	opts = Object.assign({
-		lenient: false,
-		default: null
-	}, opts);
-
-	if (opts.default !== null && typeof opts.default !== 'boolean') {
-		throw new TypeError(`Expected the \`default\` option to be of type \`boolean\`, got \`${typeof opts.default}\``);
-	}
-
-	if (/^(?:y|yes|true|1)$/i.test(val)) {
-		return true;
-	}
-
-	if (/^(?:n|no|false|0)$/i.test(val)) {
-		return false;
-	}
-
-	if (opts.lenient === true) {
-		return lenient(val, opts);
-	}
-
-	return opts.default;
-};
-
-
-/***/ }),
-/* 963 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-const YES_MATCH_SCORE_THRESHOLD = 2;
-const NO_MATCH_SCORE_THRESHOLD = 1.25;
-
-const yMatch = new Map([
-	[5, 0.25],
-	[6, 0.25],
-	[7, 0.25],
-	['t', 0.75],
-	['y', 1],
-	['u', 0.75],
-	['g', 0.25],
-	['h', 0.25],
-	['k', 0.25]
-]);
-
-const eMatch = new Map([
-	[2, 0.25],
-	[3, 0.25],
-	[4, 0.25],
-	['w', 0.75],
-	['e', 1],
-	['r', 0.75],
-	['s', 0.25],
-	['d', 0.25],
-	['f', 0.25]
-]);
-
-const sMatch = new Map([
-	['q', 0.25],
-	['w', 0.25],
-	['e', 0.25],
-	['a', 0.75],
-	['s', 1],
-	['d', 0.75],
-	['z', 0.25],
-	['x', 0.25],
-	['c', 0.25]
-]);
-
-const nMatch = new Map([
-	['h', 0.25],
-	['j', 0.25],
-	['k', 0.25],
-	['b', 0.75],
-	['n', 1],
-	['m', 0.75]
-]);
-
-const oMatch = new Map([
-	[9, 0.25],
-	[0, 0.25],
-	['i', 0.75],
-	['o', 1],
-	['p', 0.75],
-	['k', 0.25],
-	['l', 0.25]
-]);
-
-function getYesMatchScore(val) {
-	let score = 0;
-	const y = val[0];
-	const e = val[1];
-	const s = val[2];
-
-	if (yMatch.has(y)) {
-		score += yMatch.get(y);
-	}
-
-	if (eMatch.has(e)) {
-		score += eMatch.get(e);
-	}
-
-	if (sMatch.has(s)) {
-		score += sMatch.get(s);
-	}
-
-	return score;
-}
-
-function getNoMatchScore(val) {
-	let score = 0;
-	const n = val[0];
-	const o = val[1];
-
-	if (nMatch.has(n)) {
-		score += nMatch.get(n);
-	}
-
-	if (oMatch.has(o)) {
-		score += oMatch.get(o);
-	}
-
-	return score;
-}
-
-module.exports = (val, opts) => {
-	if (getYesMatchScore(val) >= YES_MATCH_SCORE_THRESHOLD) {
-		return true;
-	}
-
-	if (getNoMatchScore(val) >= NO_MATCH_SCORE_THRESHOLD) {
-		return false;
-	}
+/**
+  @license
+  Copyright Joyent, Inc. and other Node contributors.
 
-	return opts.default;
-};
+  Permission is hereby granted, free of charge, to any person obtaining a
+  copy of this software and associated documentation files (the
+  "Software"), to deal in the Software without restriction, including
+  without limitation the rights to use, copy, modify, merge, publish,
+  distribute, sublicense, and/or sell copies of the Software, and to permit
+  persons to whom the Software is furnished to do so, subject to the
+  following conditions:
 
+  The above copyright notice and this permission notice shall be included
+  in all copies or substantial portions of the Software.
 
-/***/ }),
-/* 964 */
-/***/ (function(module, exports) {
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+  NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+  OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+  USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+/**
+  @license
+  Copyright Node.js contributors. All rights reserved.
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to
+  deal in the Software without restriction, including without limitation the
+  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+  sell copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+  IN THE SOFTWARE.
+*/
+/**
+  @license
+  The MIT License (MIT)
 
-module.exports = require("dns");
+  Copyright (c) 2014 Blake Embrey (hello@blakeembrey.com)
 
-/***/ }),
-/* 965 */
-/***/ (function(module, exports) {
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
 
-module.exports = require("domain");
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
 
-/***/ })
-/******/ ]);
\ No newline at end of file
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
diff --git a/jupyterlab/staging/yarn.lock b/jupyterlab/staging/yarn.lock
index 64336daafd1a..b06bf262fb07 100644
--- a/jupyterlab/staging/yarn.lock
+++ b/jupyterlab/staging/yarn.lock
@@ -1,7476 +1,10344 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@babel/runtime@^7.1.2", "@babel/runtime@^7.15.4":
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-  resolved "https://registry.yarnpkg.com/caniuse-lite/-/caniuse-lite-1.0.30001243.tgz#d9250155c91e872186671c523f3ae50cfc94a3aa"
-  integrity sha512-vNxw9mkTBtkmLFnJRv/2rhs1yufpDfCkBZexG3Y0xdOH2Z/eE/85E4Dl5j1YUN34nZVsSp6vVRFQRrez9wJMRA==
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-  version "0.12.0"
-  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
-  integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
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-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
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-    supports-color "^5.3.0"
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-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.1.tgz#c80b3fab28bf6371e6863325eee67e618b77e6ad"
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-    ansi-styles "^4.1.0"
-    supports-color "^7.1.0"
-
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-  version "0.7.0"
-  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.7.0.tgz#90094849f0937f2eedc2425d0d28a9e5f0cbad9e"
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-  version "8.0.3"
-  resolved "https://registry.yarnpkg.com/check-types/-/check-types-8.0.3.tgz#3356cca19c889544f2d7a95ed49ce508a0ecf552"
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-
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-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/child_process/-/child_process-1.0.2.tgz#b1f7e7fc73d25e7fd1d455adc94e143830182b5a"
-  integrity sha1-sffn/HPSXn/R1FWtyU4UODAYK1o=
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-  version "3.5.2"
-  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-3.5.2.tgz#dba3976fcadb016f66fd365021d91600d01c1e75"
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-    is-binary-path "~2.1.0"
-    is-glob "~4.0.1"
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-
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-  version "2.0.0"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/chrome-trace-event/-/chrome-trace-event-1.0.3.tgz#1015eced4741e15d06664a957dbbf50d041e26ac"
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-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/classnames/-/classnames-2.3.1.tgz#dfcfa3891e306ec1dad105d0e88f4417b8535e8e"
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-  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.2.3.tgz#507b5de7d97b48ee53d84adb0160ff6216380f78"
-  integrity sha512-VcMWDN54ZN/DS+g58HYL5/n4Zrqe8vHJpGA8KdgUXFU4fuP/aHNw8eld9SyEIyabIMJX/0RaY/fplOo5hYLSFA==
-  dependencies:
-    source-map "~0.6.0"
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-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/clean-stack/-/clean-stack-2.2.0.tgz#ee8472dbb129e727b31e8a10a427dee9dfe4008b"
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-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-3.1.0.tgz#264305a7ae490d1d03bf0c9ba7c925d1753af307"
-  integrity sha512-I/zHAwsKf9FqGoXM4WWRACob9+SNukZTd94DWF57E4toouRulbCxcUh6RKUEOQlYTHJnzkPMySvPNaaSLNfLZw==
-  dependencies:
-    restore-cursor "^3.1.0"
-
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-3.0.0.tgz#a2f48437a2caa9a22436e794bf071ec9e61cedf6"
-  integrity sha512-FxqpkPPwu1HjuN93Omfm4h8uIanXofW0RxVEW3k5RKx+mJJYSthzNhp32Kzxxy3YAEZ/Dc/EWN1vZRY0+kOhbw==
-
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-  version "3.2.0-rc.14"
-  resolved "https://registry.yarnpkg.com/clipanion/-/clipanion-3.2.0-rc.14.tgz#d98154a74ae533a940de1af041e6246ba9725f0e"
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-  dependencies:
-    typanion "^3.8.0"
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-  version "7.0.4"
-  resolved "https://registry.yarnpkg.com/cliui/-/cliui-7.0.4.tgz#a0265ee655476fc807aea9df3df8df7783808b4f"
-  integrity sha512-OcRE68cOsVMXp1Yvonl/fzkQOyjLSu/8bhPDfQt0e0/Eb283TKP20Fs2MqoPsr9SwA595rRCA+QMzYc9nBP+JQ==
-  dependencies:
-    string-width "^4.2.0"
-    strip-ansi "^6.0.0"
-    wrap-ansi "^7.0.0"
-
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-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/clone-deep/-/clone-deep-4.0.1.tgz#c19fd9bdbbf85942b4fd979c84dcf7d5f07c2387"
-  integrity sha512-neHB9xuzh/wk0dIHweyAXv2aPGZIVk3pLMe+/RNzINf17fe0OG96QroktYAUm7SM1PBnzTabaLboqqxDyMU+SQ==
-  dependencies:
-    is-plain-object "^2.0.4"
-    kind-of "^6.0.2"
-    shallow-clone "^3.0.0"
-
-clone-response@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/clone-response/-/clone-response-1.0.2.tgz#d1dc973920314df67fbeb94223b4ee350239e96b"
-  integrity sha1-0dyXOSAxTfZ/vrlCI7TuNQI56Ws=
-  dependencies:
-    mimic-response "^1.0.0"
-
-clone@~2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/clone/-/clone-2.1.2.tgz#1b7f4b9f591f1e8f83670401600345a02887435f"
-  integrity sha1-G39Ln1kfHo+DZwQBYANFoCiHQ18=
-
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-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/clsx/-/clsx-1.2.1.tgz#0ddc4a20a549b59c93a4116bb26f5294ca17dc12"
-  integrity sha512-EcR6r5a8bj6pu3ycsa/E/cKVGuTgZJZdsyUYHOksG/UHIiKfjxzRxYJpyVBwYaQeOvghal9fcc4PidlgzugAQg==
-
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-  version "5.61.1"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.61.1.tgz#ccfc8a43b8fcfb8b12e8e75b5ffde48d541406e0"
-  integrity sha512-+D1NZjAucuzE93vJGbAaXzvoBHwp9nJZWWWF9utjv25+5AZUiah6CIlfb4ikG4MoDsFsCG8niiJH5++OO2LgIQ==
-
-color-convert@^1.9.0, color-convert@^1.9.1:
-  version "1.9.3"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
-  integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
-  dependencies:
-    color-name "1.1.3"
-
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-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-2.0.1.tgz#72d3a68d598c9bdb3af2ad1e84f21d896abd4de3"
-  integrity sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==
-  dependencies:
-    color-name "~1.1.4"
-
-color-name@1.1.3:
-  version "1.1.3"
-  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
-  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
-
-color-name@^1.0.0, color-name@~1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
-  integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
-
-color-string@^1.5.4:
-  version "1.5.5"
-  resolved "https://registry.yarnpkg.com/color-string/-/color-string-1.5.5.tgz#65474a8f0e7439625f3d27a6a19d89fc45223014"
-  integrity sha512-jgIoum0OfQfq9Whcfc2z/VhCNcmQjWbey6qBX0vqt7YICflUmBCh9E9CiQD5GSJ+Uehixm3NUwHVhqUAWRivZg==
-  dependencies:
-    color-name "^1.0.0"
-    simple-swizzle "^0.2.2"
-
-color@^3.1.2:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/color/-/color-3.1.3.tgz#ca67fb4e7b97d611dcde39eceed422067d91596e"
-  integrity sha512-xgXAcTHa2HeFCGLE9Xs/R82hujGtu9Jd9x4NW3T34+OMs7VoPsjwzRczKHvTAHeJwWFwX5j15+MgAppE8ztObQ==
-  dependencies:
-    color-convert "^1.9.1"
-    color-string "^1.5.4"
-
-colorette@2.0.19:
-  version "2.0.19"
-  resolved "https://registry.yarnpkg.com/colorette/-/colorette-2.0.19.tgz#cdf044f47ad41a0f4b56b3a0d5b4e6e1a2d5a798"
-  integrity sha512-3tlv/dIP7FWvj3BsbHrGLJ6l/oKh1O3TcgBqMn+yyCagOxc23fyzDS6HypQbgxWbkpDnf52p1LuR4eWDQ/K9WQ==
-
-colorette@^1.2.1, colorette@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.yarnpkg.com/colorette/-/colorette-1.2.2.tgz#cbcc79d5e99caea2dbf10eb3a26fd8b3e6acfa94"
-  integrity sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==
-
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-  version "1.0.8"
-  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
-  integrity sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==
-  dependencies:
-    delayed-stream "~1.0.0"
-
-commander@2, commander@^2.18.0, commander@^2.20.0:
-  version "2.20.3"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
-  integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
-
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-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-4.1.1.tgz#9fd602bd936294e9e9ef46a3f4d6964044b18068"
-  integrity sha512-NOKm8xhkzAjzFx8B2v5OAHT+u5pRQc2UCa2Vq9jYL/31o2wi9mxBA7LIFs3sV5VSC49z6pEhfbMULvShKj26WA==
-
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-  version "5.1.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-5.1.0.tgz#46abbd1652f8e059bddaef99bbdcb2ad9cf179ae"
-  integrity sha512-P0CysNDQ7rtVw4QIQtm+MRxV66vKFSvlsQvGYXZWR3qFU0jlMKHZZZgw8e+8DSah4UDKMqnknRDQz+xuQXQ/Zg==
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-commander@^7.0.0:
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-7.2.0.tgz#a36cb57d0b501ce108e4d20559a150a391d97ab7"
-  integrity sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw==
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-  version "2.19.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.19.0.tgz#f6198aa84e5b83c46054b94ddedbfed5ee9ff12a"
-  integrity sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg==
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-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-6.0.0.tgz#2b270da94f8fb9014455312f829a1129dbf8887e"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/commondir/-/commondir-1.0.1.tgz#ddd800da0c66127393cca5950ea968a3aaf1253b"
-  integrity sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=
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-  version "2.0.18"
-  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.18.tgz#af53cca6b070d4c3c0750fbd77286a6d7cc46fba"
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-  dependencies:
-    mime-db ">= 1.43.0 < 2"
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-  version "1.7.4"
-  resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.4.tgz#95523eff170ca57c29a0ca41e6fe131f41e5bb8f"
-  integrity sha512-jaSIDzP9pZVS4ZfQ+TzvtiWhdpFhE2RDHz8QJkpX9SIpLq88VueF5jJw6t+6CUQcAoA6t+x89MLrWAqpfDE8iQ==
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-    vary "~1.1.2"
-
-compute-gcd@^1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/compute-gcd/-/compute-gcd-1.2.1.tgz#34d639f3825625e1357ce81f0e456a6249d8c77f"
-  integrity sha512-TwMbxBNz0l71+8Sc4czv13h4kEqnchV9igQZBi6QUaz09dnz13juGnnaWWJTRsP3brxOoxeB4SA2WELLw1hCtg==
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-    validate.io-function "^1.0.2"
-    validate.io-integer-array "^1.0.0"
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-compute-lcm@^1.1.0:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/compute-lcm/-/compute-lcm-1.1.2.tgz#9107c66b9dca28cefb22b4ab4545caac4034af23"
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-  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
-  integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
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-  version "0.5.4"
-  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.4.tgz#8b82b4efac82512a02bb0b1dcec9d2c5e8eb5bfe"
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-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
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-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
-  integrity sha1-4wOogrNCzD7oylE6eZmXNNqzriw=
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-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.5.0.tgz#d1f5d71adec6558c58f389987c366aa47e994f8b"
-  integrity sha512-YZ3GUyn/o8gfKJlnlX7g7xq4gyO6OSuhGPKaaGssGB2qgDUS0gPgtTvoyZLTt9Ab6dC4hfc9dV5arkvc/OCmrw==
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-  version "0.8.0"
-  resolved "https://registry.yarnpkg.com/cookies/-/cookies-0.8.0.tgz#1293ce4b391740a8406e3c9870e828c4b54f3f90"
-  integrity sha512-8aPsApQfebXnuI+537McwYsDtjVxGm8gTIzQI3FDW6t5t/DAhERxtnbEPN/8RX+uZthoz4eCOgloXaE5cYyNow==
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diff --git a/jupyterlab/tests/__init__.py b/jupyterlab/tests/__init__.py
index 96d846d6ddfb..1811c14bf396 100644
--- a/jupyterlab/tests/__init__.py
+++ b/jupyterlab/tests/__init__.py
@@ -3,21 +3,6 @@
 
 from typing import NamedTuple
 
-try:
-    from unittest.mock import AsyncMock
-except ImportError:
-    AsyncMock = None
-
-from jupyter_server.utils import ensure_async
-
-
-def to_async_mock(args):
-    """Convert arguments to awaitable arguments or asynchronous mock."""
-    if AsyncMock is None:
-        return ensure_async(args)
-    else:
-        return AsyncMock(return_value=args)
-
 
 class Response(NamedTuple):
     """Fake tornado response."""
diff --git a/jupyterlab/tests/conftest.py b/jupyterlab/tests/conftest.py
index 60f5b41f3864..c5d497ece01e 100644
--- a/jupyterlab/tests/conftest.py
+++ b/jupyterlab/tests/conftest.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import pytest
 
 from jupyterlab import __version__
diff --git a/jupyterlab/tests/echo_kernel.py b/jupyterlab/tests/echo_kernel.py
index f52b37784e51..4f61168c2ec2 100644
--- a/jupyterlab/tests/echo_kernel.py
+++ b/jupyterlab/tests/echo_kernel.py
@@ -1,4 +1,6 @@
-# -*- coding: utf-8 -*-
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import logging
 
 from ipykernel.kernelapp import IPKernelApp
diff --git a/jupyterlab/tests/mock_packages/.yarnrc.yml b/jupyterlab/tests/mock_packages/.yarnrc.yml
new file mode 100644
index 000000000000..9a68ff4c8207
--- /dev/null
+++ b/jupyterlab/tests/mock_packages/.yarnrc.yml
@@ -0,0 +1,7 @@
+enableImmutableInstalls: false
+enableInlineBuilds: false
+enableTelemetry: false
+unsafeHttpWhitelist:
+  - '0.0.0.0'
+httpTimeout: 60000
+nodeLinker: node-modules
diff --git a/jupyterlab/tests/mock_packages/extension/mock_package.py b/jupyterlab/tests/mock_packages/extension/mock_package.py
index 02e9a21c1648..1e88a2e8d6e2 100644
--- a/jupyterlab/tests/mock_packages/extension/mock_package.py
+++ b/jupyterlab/tests/mock_packages/extension/mock_package.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 
diff --git a/jupyterlab/tests/mock_packages/extension/package.json b/jupyterlab/tests/mock_packages/extension/package.json
index 49348f034917..b70b984d735b 100644
--- a/jupyterlab/tests/mock_packages/extension/package.json
+++ b/jupyterlab/tests/mock_packages/extension/package.json
@@ -1,12 +1,12 @@
 {
   "name": "@jupyterlab/mock-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "dependencies": {
-    "@jupyterlab/launcher": "^3.6.6"
+    "@jupyterlab/launcher": "^4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6"
+    "@jupyterlab/builder": "^4.0.8"
   },
   "jupyterlab": {
     "extension": true,
diff --git a/jupyterlab/tests/mock_packages/extension/setup.py b/jupyterlab/tests/mock_packages/extension/setup.py
index e41ae2729ac5..6c6e72c41ee8 100644
--- a/jupyterlab/tests/mock_packages/extension/setup.py
+++ b/jupyterlab/tests/mock_packages/extension/setup.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 
@@ -7,6 +10,6 @@
 with open(osp.join(HERE, "package.json")) as fid:
     data = json.load(fid)
 
-from setuptools import setup
+from setuptools import setup  # noqa
 
 setup(name=name, version=data["version"], py_modules=[name])
diff --git a/jupyterlab/tests/mock_packages/extension/yarn.lock b/jupyterlab/tests/mock_packages/extension/yarn.lock
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/jupyterlab/tests/mock_packages/interop/consumer/jlab_mock_consumer.py b/jupyterlab/tests/mock_packages/interop/consumer/jlab_mock_consumer.py
index 02e9a21c1648..1e88a2e8d6e2 100644
--- a/jupyterlab/tests/mock_packages/interop/consumer/jlab_mock_consumer.py
+++ b/jupyterlab/tests/mock_packages/interop/consumer/jlab_mock_consumer.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 
diff --git a/jupyterlab/tests/mock_packages/interop/consumer/package.json b/jupyterlab/tests/mock_packages/interop/consumer/package.json
index d5247e3c6122..78a4dd1cafd7 100644
--- a/jupyterlab/tests/mock_packages/interop/consumer/package.json
+++ b/jupyterlab/tests/mock_packages/interop/consumer/package.json
@@ -1,12 +1,12 @@
 {
   "name": "@jupyterlab/mock-consumer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "dependencies": {
-    "@jupyterlab/mock-token": "^3.6.6"
+    "@jupyterlab/mock-token": "^4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6"
+    "@jupyterlab/builder": "^4.0.8"
   },
   "jupyterlab": {
     "extension": true,
diff --git a/jupyterlab/tests/mock_packages/interop/consumer/setup.py b/jupyterlab/tests/mock_packages/interop/consumer/setup.py
index eaf0186e7226..e5946b8ead57 100644
--- a/jupyterlab/tests/mock_packages/interop/consumer/setup.py
+++ b/jupyterlab/tests/mock_packages/interop/consumer/setup.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 from glob import glob
@@ -8,7 +11,7 @@
 with open(osp.join(HERE, "package.json")) as fid:
     data = json.load(fid)
 
-from setuptools import setup
+from setuptools import setup  # noqa
 
 js_name = data["name"]
 
diff --git a/jupyterlab/tests/mock_packages/interop/provider/jlab_mock_provider.py b/jupyterlab/tests/mock_packages/interop/provider/jlab_mock_provider.py
index 8b920ba66998..84d65ba56218 100644
--- a/jupyterlab/tests/mock_packages/interop/provider/jlab_mock_provider.py
+++ b/jupyterlab/tests/mock_packages/interop/provider/jlab_mock_provider.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 
diff --git a/jupyterlab/tests/mock_packages/interop/provider/package.json b/jupyterlab/tests/mock_packages/interop/provider/package.json
index e1ed963b15f8..6f045f90ecb2 100644
--- a/jupyterlab/tests/mock_packages/interop/provider/package.json
+++ b/jupyterlab/tests/mock_packages/interop/provider/package.json
@@ -1,12 +1,12 @@
 {
   "name": "@jupyterlab/mock-provider",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "dependencies": {
-    "@jupyterlab/mock-token": "^3.6.6"
+    "@jupyterlab/mock-token": "^4.0.8"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.6.6"
+    "@jupyterlab/builder": "^4.0.8"
   },
   "jupyterlab": {
     "extension": true
diff --git a/jupyterlab/tests/mock_packages/interop/provider/setup.py b/jupyterlab/tests/mock_packages/interop/provider/setup.py
index 160ecfa22f56..a89a4738f637 100644
--- a/jupyterlab/tests/mock_packages/interop/provider/setup.py
+++ b/jupyterlab/tests/mock_packages/interop/provider/setup.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import json
 import os.path as osp
 from glob import glob
@@ -8,7 +11,7 @@
 with open(osp.join(HERE, "package.json")) as fid:
     data = json.load(fid)
 
-from setuptools import setup
+from setuptools import setup  # noqa
 
 js_name = data["name"]
 
diff --git a/jupyterlab/tests/mock_packages/interop/token/package.json b/jupyterlab/tests/mock_packages/interop/token/package.json
index 933f3acaafbf..d6ebc0f90a78 100644
--- a/jupyterlab/tests/mock_packages/interop/token/package.json
+++ b/jupyterlab/tests/mock_packages/interop/token/package.json
@@ -1,8 +1,8 @@
 {
   "name": "@jupyterlab/mock-token",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "dependencies": {
-    "@lumino/coreutils": "^1.11.0"
+    "@lumino/coreutils": "^2.1.2"
   }
 }
diff --git a/jupyterlab/tests/mock_packages/mimeextension/package.json b/jupyterlab/tests/mock_packages/mimeextension/package.json
index a86783291e65..b5cca929f47b 100644
--- a/jupyterlab/tests/mock_packages/mimeextension/package.json
+++ b/jupyterlab/tests/mock_packages/mimeextension/package.json
@@ -3,7 +3,7 @@
   "version": "0.3.0",
   "private": true,
   "dependencies": {
-    "@lumino/widgets": "^1.37.2"
+    "@lumino/widgets": "^2.3.0"
   },
   "jupyterlab": {
     "mimeExtension": true
diff --git a/jupyterlab/tests/mock_packages/mimeextension/yarn.lock b/jupyterlab/tests/mock_packages/mimeextension/yarn.lock
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/jupyterlab/tests/mock_packages/test-hyphens-underscore/MANIFEST.in b/jupyterlab/tests/mock_packages/test-hyphens-underscore/MANIFEST.in
index dc7eae21e44c..adad086b9c78 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens-underscore/MANIFEST.in
+++ b/jupyterlab/tests/mock_packages/test-hyphens-underscore/MANIFEST.in
@@ -2,4 +2,4 @@ graft test_hyphens_underscore/labextension
 
 include index.js
 include package.json
-include pyproject.toml
\ No newline at end of file
+include pyproject.toml
diff --git a/jupyterlab/tests/mock_packages/test-hyphens-underscore/pyproject.toml b/jupyterlab/tests/mock_packages/test-hyphens-underscore/pyproject.toml
index 5e39a4dd5d79..f4bbacd03129 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens-underscore/pyproject.toml
+++ b/jupyterlab/tests/mock_packages/test-hyphens-underscore/pyproject.toml
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 [build-system]
 requires = ["jupyter_packaging~=0.10,<2", "jupyterlab~=3.0"]
 build-backend = "jupyter_packaging.build_api"
diff --git a/jupyterlab/tests/mock_packages/test-hyphens-underscore/setup.py b/jupyterlab/tests/mock_packages/test-hyphens-underscore/setup.py
index eaa3a3751ccd..41e36d5d82e1 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens-underscore/setup.py
+++ b/jupyterlab/tests/mock_packages/test-hyphens-underscore/setup.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 from os import path
 
 from setuptools import setup
@@ -12,7 +15,7 @@
 
 data_files_spec = [("share/jupyter/labextensions/" + lab_ext_name, lab_path, "**")]
 
-setup_args = dict(name=name, version=version, packages=[module_name])
+setup_args = {"name": name, "version": version, "packages": [module_name]}
 
 
 try:
@@ -22,10 +25,10 @@
     cmdclass = wrap_installers(post_develop=post_develop)
 
     setup_args.update(
-        dict(
-            cmdclass=cmdclass,
-            data_files=get_data_files(data_files_spec),
-        )
+        {
+            "cmdclass": cmdclass,
+            "data_files": get_data_files(data_files_spec),
+        }
     )
 except ImportError:
     pass
diff --git a/jupyterlab/tests/mock_packages/test-hyphens-underscore/test_hyphens_underscore/__init__.py b/jupyterlab/tests/mock_packages/test-hyphens-underscore/test_hyphens_underscore/__init__.py
index 834440b5348a..baeeceb659d4 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens-underscore/test_hyphens_underscore/__init__.py
+++ b/jupyterlab/tests/mock_packages/test-hyphens-underscore/test_hyphens_underscore/__init__.py
@@ -1,4 +1,6 @@
-import json
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 
 
 def _jupyter_labextension_paths():
diff --git a/jupyterlab/tests/mock_packages/test-hyphens-underscore/yarn.lock b/jupyterlab/tests/mock_packages/test-hyphens-underscore/yarn.lock
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/MANIFEST.in b/jupyterlab/tests/mock_packages/test-hyphens/MANIFEST.in
index 307ee9e5916f..2b0136c3f5f0 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens/MANIFEST.in
+++ b/jupyterlab/tests/mock_packages/test-hyphens/MANIFEST.in
@@ -1,5 +1,5 @@
-graft test-hyphens/labextension
+graft test_hyphens/labextension
 
 include index.js
 include package.json
-include pyproject.toml
\ No newline at end of file
+include pyproject.toml
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/package.json b/jupyterlab/tests/mock_packages/test-hyphens/package.json
index 6b16a1350ece..a9cb8d8386df 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens/package.json
+++ b/jupyterlab/tests/mock_packages/test-hyphens/package.json
@@ -3,22 +3,22 @@
   "version": "3.0.2",
   "private": true,
   "main": "index.js",
+  "files": [
+    "index.js"
+  ],
   "scripts": {
     "build:labextension": "jupyter labextension build .",
-    "clean": "rimraf ./test-hyphens/labextension"
+    "clean": "rimraf ./test_hyphens/labextension"
   },
   "dependencies": {
-    "@jupyterlab/launcher": "^3.1.0-alpha.5"
+    "@jupyterlab/launcher": "^4.0.0-alpha.21"
   },
   "devDependencies": {
-    "@jupyterlab/builder": "^3.1.0-alpha.5",
-    "rimraf": "^3.0.2"
+    "@jupyterlab/builder": "^4.0.0-alpha.21",
+    "rimraf": "~3.0.0"
   },
-  "files": [
-    "index.js"
-  ],
   "jupyterlab": {
     "extension": true,
-    "outputDir": "./test-hyphens/labextension"
+    "outputDir": "./test_hyphens/labextension"
   }
 }
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/pyproject.toml b/jupyterlab/tests/mock_packages/test-hyphens/pyproject.toml
index 236ee497d106..712944334f65 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens/pyproject.toml
+++ b/jupyterlab/tests/mock_packages/test-hyphens/pyproject.toml
@@ -1,9 +1,12 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 [build-system]
-requires = ["jupyter_packaging~=0.10,<2", "jupyterlab~=3.0"]
+requires = ["jupyter_packaging~=0.10,<2", "jupyterlab>=4.0.0a36,<5.0.0"]
 build-backend = "jupyter_packaging.build_api"
 
 [tool.jupyter-packaging.options]
-ensured-targets = ["test-hyphens/labextension/package.json"]
+ensured-targets = ["test_hyphens/labextension/package.json"]
 
 [tool.jupyter-packaging.builder]
 factory = "jupyter_packaging.npm_builder"
@@ -13,4 +16,4 @@ build_cmd = "build:labextension"
 npm = ["jlpm"]
 
 [tool.check-manifest]
-ignore = ["test-hyphens/labextension/**", "yarn.lock", ".*", "package-lock.json"]
+ignore = ["test_hyphens/labextension/**", "yarn.lock", ".*", "package-lock.json"]
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/setup.py b/jupyterlab/tests/mock_packages/test-hyphens/setup.py
index 3acf0ad4cfff..508cab3c4450 100644
--- a/jupyterlab/tests/mock_packages/test-hyphens/setup.py
+++ b/jupyterlab/tests/mock_packages/test-hyphens/setup.py
@@ -1,10 +1,13 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 from os import path
 
 from setuptools import setup
 
 version = "3.0.2"
-name = "test-hyphens"
-module_name = "test-hyphens"
+name = "test_hyphens"
+module_name = "test_hyphens"
 lab_ext_name = "test-hyphens"
 
 HERE = path.abspath(path.dirname(__file__))
@@ -12,7 +15,7 @@
 
 data_files_spec = [("share/jupyter/labextensions/" + lab_ext_name, lab_path, "**")]
 
-setup_args = dict(name=name, version=version, packages=[module_name])
+setup_args = {"name": name, "version": version, "packages": [module_name]}
 
 try:
     from jupyter_packaging import get_data_files, npm_builder, wrap_installers
@@ -22,10 +25,10 @@
     cmdclass = wrap_installers(post_develop=post_develop)
 
     setup_args.update(
-        dict(
-            cmdclass=cmdclass,
-            data_files=get_data_files(data_files_spec),
-        )
+        {
+            "cmdclass": cmdclass,
+            "data_files": get_data_files(data_files_spec),
+        }
     )
 except ImportError:
     pass
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/test-hyphens/__init__.py b/jupyterlab/tests/mock_packages/test-hyphens/test-hyphens/__init__.py
deleted file mode 100644
index ad6e03e16f7a..000000000000
--- a/jupyterlab/tests/mock_packages/test-hyphens/test-hyphens/__init__.py
+++ /dev/null
@@ -1,2 +0,0 @@
-def _jupyter_labextension_paths():
-    return [{"src": "labextension", "dest": "test-hyphens"}]
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/test_hyphens/__init__.py b/jupyterlab/tests/mock_packages/test-hyphens/test_hyphens/__init__.py
new file mode 100644
index 000000000000..4ce02e093a66
--- /dev/null
+++ b/jupyterlab/tests/mock_packages/test-hyphens/test_hyphens/__init__.py
@@ -0,0 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+
+def _jupyter_labextension_paths():
+    return [{"src": "labextension", "dest": "test-hyphens"}]
diff --git a/jupyterlab/tests/mock_packages/test-hyphens/yarn.lock b/jupyterlab/tests/mock_packages/test-hyphens/yarn.lock
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/jupyterlab/tests/mock_packages/test_no_hyphens/MANIFEST.in b/jupyterlab/tests/mock_packages/test_no_hyphens/MANIFEST.in
index 08e7dd59ee7d..3e588c9ef115 100644
--- a/jupyterlab/tests/mock_packages/test_no_hyphens/MANIFEST.in
+++ b/jupyterlab/tests/mock_packages/test_no_hyphens/MANIFEST.in
@@ -2,4 +2,4 @@ graft test_no_hyphens/labextension
 
 include index.js
 include package.json
-include pyproject.toml
\ No newline at end of file
+include pyproject.toml
diff --git a/jupyterlab/tests/mock_packages/test_no_hyphens/pyproject.toml b/jupyterlab/tests/mock_packages/test_no_hyphens/pyproject.toml
index cfc11863beb5..3a7e5f15a507 100644
--- a/jupyterlab/tests/mock_packages/test_no_hyphens/pyproject.toml
+++ b/jupyterlab/tests/mock_packages/test_no_hyphens/pyproject.toml
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 [build-system]
 requires = ["jupyter_packaging~=0.10,<2", "jupyterlab~=3.0"]
 build-backend = "jupyter_packaging.build_api"
diff --git a/jupyterlab/tests/mock_packages/test_no_hyphens/setup.py b/jupyterlab/tests/mock_packages/test_no_hyphens/setup.py
index 2f543d15e32f..1813e52385ad 100644
--- a/jupyterlab/tests/mock_packages/test_no_hyphens/setup.py
+++ b/jupyterlab/tests/mock_packages/test_no_hyphens/setup.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 from os import path
 
 from setuptools import setup
@@ -12,7 +15,7 @@
 
 data_files_spec = [("share/jupyter/labextensions/" + lab_ext_name, lab_path, "**")]
 
-setup_args = dict(name=name, version=version, packages=[module_name])
+setup_args = {"name": name, "version": version, "packages": [module_name]}
 
 
 try:
@@ -20,7 +23,7 @@
 
     post_develop = npm_builder(build_cmd="build:labextension", build_dir=lab_path, npm=["jlpm"])
     cmdclass = wrap_installers(post_develop=post_develop)
-    setup_args.update(dict(cmdclass=cmdclass, data_files=get_data_files(data_files_spec)))
+    setup_args.update({"cmdclass": cmdclass, "data_files": get_data_files(data_files_spec)})
 except ImportError:
     pass
 
diff --git a/jupyterlab/tests/mock_packages/test_no_hyphens/test_no_hyphens/__init__.py b/jupyterlab/tests/mock_packages/test_no_hyphens/test_no_hyphens/__init__.py
index c5996135976b..a84cec581cde 100644
--- a/jupyterlab/tests/mock_packages/test_no_hyphens/test_no_hyphens/__init__.py
+++ b/jupyterlab/tests/mock_packages/test_no_hyphens/test_no_hyphens/__init__.py
@@ -1,2 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+
 def _jupyter_labextension_paths():
     return [{"src": "labextension", "dest": "test_no_hyphens"}]
diff --git a/jupyterlab/tests/mock_packages/test_no_hyphens/yarn.lock b/jupyterlab/tests/mock_packages/test_no_hyphens/yarn.lock
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/jupyterlab/tests/test_announcements.py b/jupyterlab/tests/test_announcements.py
index 5eade31e6304..5c5274462726 100644
--- a/jupyterlab/tests/test_announcements.py
+++ b/jupyterlab/tests/test_announcements.py
@@ -66,7 +66,7 @@ async def test_CheckForUpdateHandler_get_pypi_success(mock_client, labserverapp,
         "https://github.com/jupyterlab/jupyterlab/releases/tag/v1000.0.0",
     ]
     assert payload["notification"]["options"] == {
-        "data": {"id": hashlib.sha1(message.encode()).hexdigest(), "tags": ["update"]}
+        "data": {"id": hashlib.sha1(message.encode()).hexdigest(), "tags": ["update"]}  # noqa: S324
     }
 
 
diff --git a/jupyterlab/tests/test_app.py b/jupyterlab/tests/test_app.py
index d635750bd20e..e1262e9abb77 100644
--- a/jupyterlab/tests/test_app.py
+++ b/jupyterlab/tests/test_app.py
@@ -1,15 +1,20 @@
-# coding: utf-8
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 """A lab app that runs a sub process for a demo or a test."""
 
-import argparse
 import atexit
-import glob
 import json
-import logging
 import os
 import shutil
 import sys
 import tempfile
+
+try:
+    from importlib.resources import files
+except ImportError:
+    from importlib_resources import files
+
 from os import path as osp
 from os.path import join as pjoin
 from stat import S_IRGRP, S_IROTH, S_IRUSR
@@ -18,14 +23,10 @@
 
 import jupyter_core
 import jupyterlab_server
-import pkg_resources
 from ipykernel.kernelspec import write_kernel_spec
-from jupyter_core.application import base_aliases, base_flags
 from jupyter_server.serverapp import ServerApp
 from jupyterlab_server.process_app import ProcessApp
-from traitlets import Bool, Dict, Unicode, default
-
-from jupyterlab.utils import deprecated
+from traitlets import default
 
 HERE = osp.realpath(osp.dirname(__file__))
 
@@ -74,8 +75,7 @@ def _create_schemas_dir():
     # Get schema content.
     schema_package = jupyterlab_server.__name__
     schema_path = "tests/schemas/@jupyterlab/apputils-extension/themes.json"
-    themes = pkg_resources.resource_string(schema_package, schema_path)
-
+    themes = files(schema_package).joinpath(schema_path).read_bytes()
     with open(osp.join(extension_dir, "themes.json"), "w") as fid:
         fid.write(themes.decode("utf-8"))
     atexit.register(lambda: shutil.rmtree(root_dir, True))
@@ -96,7 +96,7 @@ def _create_workspaces_dir():
     return root_dir
 
 
-class TestEnv(object):
+class TestEnv:
     """Set Jupyter path variables to a temporary directory
 
     Useful as a context manager or with explicit start/stop
@@ -128,7 +128,7 @@ def stop(self):
         self.path_patch.stop()
         try:
             self.test_dir.cleanup()
-        except (OSError, PermissionError) as e:
+        except OSError:
             pass
 
     def __enter__(self):
@@ -149,7 +149,6 @@ def initialize_templates(self):
         self.template_paths = [_create_template_dir()]
 
     def initialize_settings(self):
-
         self.env_patch = TestEnv()
         self.env_patch.start()
         ProcessApp.__init__(self)
@@ -215,179 +214,6 @@ def _process_finished(self, future):
             os._exit(1)
 
 
-jest_aliases = dict(base_aliases)
-jest_aliases.update({"testPathPattern": "JestApp.testPathPattern"})
-jest_aliases.update({"testNamePattern": "JestApp.testNamePattern"})
-
-
-jest_flags = dict(base_flags)
-jest_flags["coverage"] = ({"JestApp": {"coverage": True}}, "Run coverage")
-jest_flags["watchAll"] = ({"JestApp": {"watchAll": True}}, "Watch all test files")
-
-
-class JestApp(ProcessTestApp):
-    """DEPRECATED: A notebook app that runs a jest test."""
-
-    default_url = Unicode("/lab")
-    extension_url = "/lab"
-    name = __name__
-    app_name = "JupyterLab Jest Application"
-    app_url = "/lab"
-
-    coverage = Bool(False, help="Whether to run coverage").tag(config=True)
-
-    testPathPattern = Unicode("").tag(config=True)
-
-    testNamePattern = Unicode("").tag(config=True)
-
-    watchAll = Bool(False).tag(config=True)
-
-    aliases = jest_aliases
-
-    flags = jest_flags
-
-    jest_dir = Unicode("")
-
-    test_config = Dict(dict(foo="bar"))
-
-    @deprecated(removed_version=4)
-    def get_command(self):
-        """Get the command to run"""
-        terminalsAvailable = self.settings["terminals_available"]
-        debug = self.log.level == logging.DEBUG
-
-        # find jest
-        target = osp.join("node_modules", "jest", "bin", "jest.js")
-        jest = ""
-        cwd = osp.realpath(self.jest_dir)
-        while osp.dirname(cwd) != cwd:
-            if osp.exists(osp.join(cwd, target)):
-                jest = osp.join(cwd, target)
-                break
-            cwd = osp.dirname(cwd)
-        if not jest:
-            raise RuntimeError("jest not found!")
-
-        cmd = ["node"]
-        if self.coverage:
-            cmd += [jest, "--coverage"]
-        elif debug:
-            cmd += ["--inspect-brk", jest, "--no-cache"]
-            if self.watchAll:
-                cmd += ["--watchAll"]
-            else:
-                cmd += ["--watch"]
-        else:
-            cmd += [jest]
-
-        if self.testPathPattern:
-            cmd += ["--testPathPattern", self.testPathPattern]
-
-        if self.testNamePattern:
-            cmd += ["--testNamePattern", self.testNamePattern]
-
-        cmd += ["--runInBand"]
-
-        if self.log_level > logging.INFO:
-            cmd += ["--silent"]
-
-        config = dict(
-            baseUrl=self.serverapp.connection_url,
-            terminalsAvailable=str(terminalsAvailable),
-            token=self.settings["token"],
-        )
-        config.update(**self.test_config)
-
-        td = tempfile.mkdtemp()
-        atexit.register(lambda: shutil.rmtree(td, True))
-
-        config_path = os.path.join(td, "config.json")
-        with open(config_path, "w") as fid:
-            json.dump(config, fid)
-
-        env = os.environ.copy()
-        env["JUPYTER_CONFIG_DATA"] = config_path
-        return cmd, dict(cwd=self.jest_dir, env=env)
-
-
-class KarmaTestApp(ProcessTestApp):
-    """DEPRECATED: A notebook app that runs the jupyterlab karma tests."""
-
-    default_url = Unicode("/lab")
-    extension_url = "/lab"
-    name = __name__
-    app_name = "JupyterLab Karma Application"
-    app_url = "/lab"
-
-    karma_pattern = Unicode("src/*.spec.ts*")
-    karma_base_dir = Unicode("")
-    karma_coverage_dir = Unicode("")
-
-    @deprecated(removed_version=4)
-    def get_command(self):
-        """Get the command to run."""
-        terminalsAvailable = self.settings["terminals_available"]
-        token = self.settings["token"]
-        config = dict(
-            baseUrl=self.serverapp.connection_url,
-            token=token,
-            terminalsAvailable=str(terminalsAvailable),
-            foo="bar",
-        )
-
-        cwd = self.karma_base_dir
-
-        karma_inject_file = pjoin(cwd, "build", "injector.js")
-        if not os.path.exists(pjoin(cwd, "build")):
-            os.makedirs(pjoin(cwd, "build"))
-
-        with open(karma_inject_file, "w") as fid:
-            fid.write(
-                """
-            require('es6-promise/dist/es6-promise.js');
-            require('@lumino/widgets/style/index.css');
-
-            var node = document.createElement('script');
-            node.id = 'jupyter-config-data';
-            node.type = 'application/json';
-            node.textContent = '%s';
-            document.body.appendChild(node);
-            """
-                % json.dumps(config)
-            )
-
-        # validate the pattern
-        parser = argparse.ArgumentParser()
-        parser.add_argument("--pattern", action="store")
-        args, argv = parser.parse_known_args()
-        pattern = args.pattern or self.karma_pattern
-        files = glob.glob(pjoin(cwd, pattern))
-        if not files:
-            msg = 'No files matching "%s" found in "%s"'
-            raise ValueError(msg % (pattern, cwd))
-
-        # Find and validate the coverage folder if not specified
-        if not self.karma_coverage_dir:
-            with open(pjoin(cwd, "package.json")) as fid:
-                data = json.load(fid)
-            name = data["name"].replace("@jupyterlab/test-", "")
-            folder = osp.realpath(pjoin(HERE, "..", "..", "packages", name))
-            if not osp.exists(folder):
-                raise ValueError(
-                    'No source package directory found for "%s", use the pattern '
-                    '"@jupyterlab/test-<package_dir_name>"' % name
-                )
-            self.karma_coverage_dir = folder
-
-        env = os.environ.copy()
-        env["KARMA_INJECT_FILE"] = karma_inject_file
-        env.setdefault("KARMA_FILE_PATTERN", pattern)
-        env.setdefault("KARMA_COVER_FOLDER", self.karma_coverage_dir)
-        cwd = self.karma_base_dir
-        cmd = ["karma", "start"] + sys.argv[1:]
-        return cmd, dict(env=env, cwd=cwd)
-
-
 class RootedServerApp(ServerApp):
     @default("root_dir")
     def _default_root_dir(self):
@@ -404,32 +230,3 @@ def _default_root_dir(self):
         os.chmod(readonly_filepath, S_IRUSR | S_IRGRP | S_IROTH)
         atexit.register(lambda: shutil.rmtree(root_dir, True))
         return root_dir
-
-
-@deprecated(removed_version=4)
-def run_jest(jest_dir):
-    """Run a jest test in the given base directory."""
-
-    def _jupyter_server_extension_points():
-        return [{"module": __name__, "app": JestApp}]
-
-    sys.modules[__name__]._jupyter_server_extension_points = _jupyter_server_extension_points
-    JestApp.jest_dir = jest_dir
-    RootedServerApp.jpserver_extensions = Dict({__name__: True})
-    RootedServerApp.flags = jest_flags
-    RootedServerApp.launch_instance()
-
-
-@deprecated(removed_version=4)
-def run_karma(base_dir, coverage_dir=""):
-    """Run a karma test in the given base directory."""
-    logging.disable(logging.WARNING)
-
-    def _jupyter_server_extension_points():
-        return [{"module": __name__, "app": KarmaTestApp}]
-
-    sys.modules[__name__]._jupyter_server_extension_points = _jupyter_server_extension_points
-    KarmaTestApp.karma_base_dir = base_dir
-    KarmaTestApp.karma_coverage_dir = coverage_dir
-    RootedServerApp.jpserver_extensions = Dict({__name__: True})
-    RootedServerApp.launch_instance(argv=[])
diff --git a/jupyterlab/tests/test_build_api.py b/jupyterlab/tests/test_build_api.py
index fd697b094c6d..5c46a6db433d 100644
--- a/jupyterlab/tests/test_build_api.py
+++ b/jupyterlab/tests/test_build_api.py
@@ -1,3 +1,6 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 """Test the kernels service API."""
 import asyncio
 import json
@@ -104,12 +107,11 @@ async def test_clear(self, build_api_tester):
         assert expected_http_error(e, 500)
 
         loop = asyncio.get_event_loop()
-        asyncio.ensure_future(build_api_tester.build(), loop=loop)
+        asyncio.ensure_future(build_api_tester.build(), loop=loop)  # noqa RUF006
 
         while True:
             r = await build_api_tester.getStatus()
             res = r.body.decode()
-            print(res)
             resp = json.loads(res)
             if resp["status"] == "building":
                 break
diff --git a/jupyterlab/tests/test_extensions.py b/jupyterlab/tests/test_extensions.py
new file mode 100644
index 000000000000..e19d60c8e353
--- /dev/null
+++ b/jupyterlab/tests/test_extensions.py
@@ -0,0 +1,344 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import json
+from unittest.mock import Mock, patch
+
+import pytest
+from traitlets.config import Config, Configurable
+
+from jupyterlab.extensions import PyPIExtensionManager, ReadOnlyExtensionManager
+from jupyterlab.extensions.manager import ExtensionManager, ExtensionPackage
+
+from . import fake_client_factory
+
+
+@pytest.mark.parametrize(
+    "version, expected",
+    (
+        ("1", "1"),
+        ("1.0", "1.0"),
+        ("1.0.0", "1.0.0"),
+        ("1.0.0a52", "1.0.0-alpha.52"),
+        ("1.0.0b3", "1.0.0-beta.3"),
+        ("1.0.0rc22", "1.0.0-rc.22"),
+        ("1.0.0rc23.post2", "1.0.0-rc.23"),
+        ("1.0.0rc24.dev2", "1.0.0-rc.24"),
+        ("1.0.0rc25.post4.dev2", "1.0.0-rc.25"),
+    ),
+)
+def test_ExtensionManager_get_semver_version(version, expected):
+    assert ExtensionManager.get_semver_version(version) == expected
+
+
+async def test_ExtensionManager_list_extensions_installed(monkeypatch):
+    extension1 = ExtensionPackage("extension1", "Extension 1 description", "", "prebuilt")
+
+    async def mock_installed(*args, **kwargs):
+        return {"extension1": extension1}
+
+    monkeypatch.setattr(ReadOnlyExtensionManager, "_get_installed_extensions", mock_installed)
+
+    manager = ReadOnlyExtensionManager()
+
+    extensions = await manager.list_extensions()
+
+    assert extensions == ([extension1], 1)
+
+
+async def test_ExtensionManager_list_extensions_query(monkeypatch):
+    extension1 = ExtensionPackage("extension1", "Extension 1 description", "", "prebuilt")
+    extension2 = ExtensionPackage("extension2", "Extension 2 description", "", "prebuilt")
+
+    async def mock_list(*args, **kwargs):
+        return {"extension1": extension1, "extension2": extension2}, None
+
+    monkeypatch.setattr(ReadOnlyExtensionManager, "list_packages", mock_list)
+
+    manager = ReadOnlyExtensionManager()
+
+    extensions = await manager.list_extensions("ext")
+
+    assert extensions == ([extension1, extension2], 1)
+
+
+@patch("tornado.httpclient.AsyncHTTPClient", new_callable=fake_client_factory)
+async def test_ExtensionManager_list_extensions_query_allow(mock_client, monkeypatch):
+    extension1 = ExtensionPackage("extension1", "Extension 1 description", "", "prebuilt")
+    extension2 = ExtensionPackage("extension2", "Extension 2 description", "", "prebuilt")
+
+    mock_client.body = json.dumps({"allowed_extensions": [{"name": "extension1"}]}).encode()
+
+    async def mock_list(*args, **kwargs):
+        return {"extension1": extension1, "extension2": extension2}, None
+
+    monkeypatch.setattr(ReadOnlyExtensionManager, "list_packages", mock_list)
+
+    manager = ReadOnlyExtensionManager(
+        ext_options={"allowed_extensions_uris": {"http://dummy-allowed-extension"}},
+    )
+
+    extensions = await manager.list_extensions("ext")
+
+    assert extensions == ([extension1], 1)
+
+
+@patch("tornado.httpclient.AsyncHTTPClient", new_callable=fake_client_factory)
+async def test_ExtensionManager_list_extensions_query_block(mock_client, monkeypatch):
+    extension1 = ExtensionPackage("extension1", "Extension 1 description", "", "prebuilt")
+    extension2 = ExtensionPackage("extension2", "Extension 2 description", "", "prebuilt")
+
+    mock_client.body = json.dumps({"blocked_extensions": [{"name": "extension1"}]}).encode()
+
+    async def mock_list(*args, **kwargs):
+        return {"extension1": extension1, "extension2": extension2}, None
+
+    monkeypatch.setattr(ReadOnlyExtensionManager, "list_packages", mock_list)
+
+    manager = ReadOnlyExtensionManager(
+        ext_options={"blocked_extensions_uris": {"http://dummy-blocked-extension"}}
+    )
+
+    extensions = await manager.list_extensions("ext")
+
+    assert extensions == ([extension2], 1)
+
+
+@patch("tornado.httpclient.AsyncHTTPClient", new_callable=fake_client_factory)
+async def test_ExtensionManager_list_extensions_query_allow_block(mock_client, monkeypatch):
+    extension1 = ExtensionPackage("extension1", "Extension 1 description", "", "prebuilt")
+    extension2 = ExtensionPackage("extension2", "Extension 2 description", "", "prebuilt")
+
+    mock_client.body = json.dumps(
+        {
+            "allowed_extensions": [{"name": "extension1"}],
+            "blocked_extensions": [{"name": "extension1"}],
+        }
+    ).encode()
+
+    async def mock_list(*args, **kwargs):
+        return {"extension1": extension1, "extension2": extension2}, None
+
+    monkeypatch.setattr(ReadOnlyExtensionManager, "list_packages", mock_list)
+
+    manager = ReadOnlyExtensionManager(
+        ext_options={
+            "allowed_extensions_uris": {"http://dummy-allowed-extension"},
+            "blocked_extensions_uris": {"http://dummy-blocked-extension"},
+        }
+    )
+
+    extensions = await manager.list_extensions("ext")
+
+    assert extensions == ([extension1], 1)
+
+
+async def test_ExtensionManager_install():
+    manager = ReadOnlyExtensionManager()
+
+    result = await manager.install("extension1")
+
+    assert result.status == "error"
+    assert result.message == "Extension installation not supported."
+
+
+async def test_ExtensionManager_uninstall():
+    manager = ReadOnlyExtensionManager()
+
+    result = await manager.uninstall("extension1")
+
+    assert result.status == "error"
+    assert result.message == "Extension removal not supported."
+
+
+@patch("jupyterlab.extensions.pypi.xmlrpc.client")
+async def test_PyPiExtensionManager_list_extensions_query(mocked_rpcclient):
+    extension1 = ExtensionPackage(
+        name="jupyterlab-git",
+        description="A JupyterLab extension for version control using git",
+        homepage_url="https://github.com/jupyterlab/jupyterlab-git",
+        pkg_type="prebuilt",
+        latest_version="0.37.1",
+        author="Jupyter Development Team",
+        license="BSD-3-Clause",
+        package_manager_url="https://pypi.org/project/jupyterlab-git/",
+    )
+    extension2 = ExtensionPackage(
+        name="jupyterlab-github",
+        description="JupyterLab viewer for GitHub repositories",
+        homepage_url="https://github.com/jupyterlab/jupyterlab-github/blob/main/README.md",
+        pkg_type="prebuilt",
+        latest_version="3.0.1",
+        author="Ian Rose",
+        license="BSD-3-Clause",
+        bug_tracker_url="https://github.com/jupyterlab/jupyterlab-github/issues",
+        package_manager_url="https://pypi.org/project/jupyterlab-github/",
+        repository_url="https://github.com/jupyterlab/jupyterlab-github",
+    )
+
+    proxy = Mock(
+        browse=Mock(
+            return_value=[
+                ["jupyterlab-git", "0.33.0"],
+                ["jupyterlab-git", "0.34.0"],
+                ["jupyterlab-git", "0.34.1"],
+                ["jupyterlab-git", "0.37.0"],
+                ["jupyterlab-git", "0.37.1"],
+                ["jupyterlab-github", "3.0.0"],
+                ["jupyterlab-github", "3.0.1"],
+            ]
+        ),
+    )
+    mocked_rpcclient.ServerProxy = Mock(return_value=proxy)
+
+    manager = PyPIExtensionManager()
+
+    async def mock_pkg_metadata(n, l, b):  # noqa
+        return (
+            {
+                "name": "jupyterlab-git",
+                "version": "0.37.1",
+                "stable_version": None,
+                "bugtrack_url": None,
+                "package_url": "https://pypi.org/project/jupyterlab-git/",
+                "release_url": "https://pypi.org/project/jupyterlab-git/0.37.1/",
+                "docs_url": None,
+                "home_page": "https://github.com/jupyterlab/jupyterlab-git",
+                "download_url": "",
+                "project_url": "",
+                "project_urls": {},
+                "author": "Jupyter Development Team",
+                "author_email": "",
+                "maintainer": "",
+                "maintainer_email": "",
+                "summary": "A JupyterLab extension for version control using git",
+                "license": "BSD-3-Clause",
+                "keywords": "Jupyter,JupyterLab,JupyterLab3,jupyterlab-extension,Git",
+                "platform": "Linux",
+                "classifiers": [
+                    "Framework :: Jupyter",
+                    "Framework :: Jupyter :: JupyterLab",
+                    "Framework :: Jupyter :: JupyterLab :: 3",
+                    "Framework :: Jupyter :: JupyterLab :: Extensions",
+                    "Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt",
+                    "Intended Audience :: Developers",
+                    "Intended Audience :: Science/Research",
+                    "License :: OSI Approved :: BSD License",
+                    "Programming Language :: Python",
+                    "Programming Language :: Python :: 3",
+                    "Programming Language :: Python :: 3.10",
+                    "Programming Language :: Python :: 3.6",
+                    "Programming Language :: Python :: 3.7",
+                    "Programming Language :: Python :: 3.8",
+                    "Programming Language :: Python :: 3.9",
+                ],
+                "requires": [],
+                "requires_dist": [
+                    "jupyter-server",
+                    "nbdime (~=3.1)",
+                    "nbformat",
+                    "packaging",
+                    "pexpect",
+                    "black ; extra == 'dev'",
+                    "coverage ; extra == 'dev'",
+                    "jupyter-packaging (~=0.7.9) ; extra == 'dev'",
+                    "jupyterlab (~=3.0) ; extra == 'dev'",
+                    "pre-commit ; extra == 'dev'",
+                    "pytest ; extra == 'dev'",
+                    "pytest-asyncio ; extra == 'dev'",
+                    "pytest-cov ; extra == 'dev'",
+                    "pytest-tornasync ; extra == 'dev'",
+                    "black ; extra == 'tests'",
+                    "coverage ; extra == 'tests'",
+                    "jupyter-packaging (~=0.7.9) ; extra == 'tests'",
+                    "jupyterlab (~=3.0) ; extra == 'tests'",
+                    "pre-commit ; extra == 'tests'",
+                    "pytest ; extra == 'tests'",
+                    "pytest-asyncio ; extra == 'tests'",
+                    "pytest-cov ; extra == 'tests'",
+                    "pytest-tornasync ; extra == 'tests'",
+                    "hybridcontents ; extra == 'tests'",
+                    "jupytext ; extra == 'tests'",
+                ],
+                "provides": [],
+                "provides_dist": [],
+                "obsoletes": [],
+                "obsoletes_dist": [],
+                "requires_python": "<4,>=3.6",
+                "requires_external": [],
+                "_pypi_ordering": 55,
+                "downloads": {"last_day": -1, "last_week": -1, "last_month": -1},
+                "cheesecake_code_kwalitee_id": None,
+                "cheesecake_documentation_id": None,
+                "cheesecake_installability_id": None,
+            }
+            if n == "jupyterlab-git"
+            else {
+                "name": "jupyterlab-github",
+                "version": "3.0.1",
+                "stable_version": None,
+                "bugtrack_url": None,
+                "package_url": "https://pypi.org/project/jupyterlab-github/",
+                "release_url": "https://pypi.org/project/jupyterlab-github/3.0.1/",
+                "docs_url": None,
+                "home_page": "",
+                "download_url": "",
+                "project_url": "",
+                "project_urls": {
+                    "Homepage": "https://github.com/jupyterlab/jupyterlab-github/blob/main/README.md",
+                    "Bug Tracker": "https://github.com/jupyterlab/jupyterlab-github/issues",
+                    "Source Code": "https://github.com/jupyterlab/jupyterlab-github",
+                },
+                "author": "Ian Rose",
+                "author_email": "jupyter@googlegroups.com",
+                "maintainer": "",
+                "maintainer_email": "",
+                "summary": "JupyterLab viewer for GitHub repositories",
+                "license": "BSD-3-Clause",
+                "keywords": "Jupyter,JupyterLab,JupyterLab3",
+                "platform": "Linux",
+                "classifiers": [
+                    "Framework :: Jupyter",
+                    "Framework :: Jupyter :: JupyterLab",
+                    "Framework :: Jupyter :: JupyterLab :: 3",
+                    "Framework :: Jupyter :: JupyterLab :: Extensions",
+                    "Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt",
+                    "License :: OSI Approved :: BSD License",
+                    "Programming Language :: Python",
+                    "Programming Language :: Python :: 3",
+                    "Programming Language :: Python :: 3.6",
+                    "Programming Language :: Python :: 3.7",
+                    "Programming Language :: Python :: 3.8",
+                    "Programming Language :: Python :: 3.9",
+                ],
+                "requires": [],
+                "requires_dist": ["jupyterlab (~=3.0)"],
+                "provides": [],
+                "provides_dist": [],
+                "obsoletes": [],
+                "obsoletes_dist": [],
+                "requires_python": ">=3.6",
+                "requires_external": [],
+                "_pypi_ordering": 12,
+                "downloads": {"last_day": -1, "last_week": -1, "last_month": -1},
+                "cheesecake_code_kwalitee_id": None,
+                "cheesecake_documentation_id": None,
+                "cheesecake_installability_id": None,
+            }
+        )
+
+    manager._fetch_package_metadata = mock_pkg_metadata
+
+    extensions = await manager.list_extensions("git")
+
+    assert extensions == ([extension1, extension2], 1)
+
+
+async def test_PyPiExtensionManager_custom_server_url():
+    BASE_URL = "https://mylocal.pypi.server/pypi"  # noqa
+
+    parent = Configurable(config=Config({"PyPIExtensionManager": {"base_url": BASE_URL}}))
+
+    manager = PyPIExtensionManager(parent=parent)
+
+    assert manager.base_url == BASE_URL
diff --git a/jupyterlab/tests/test_jupyterlab.py b/jupyterlab/tests/test_jupyterlab.py
index 54331a5449dd..f10f5c1821fa 100644
--- a/jupyterlab/tests/test_jupyterlab.py
+++ b/jupyterlab/tests/test_jupyterlab.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 """Test installation of JupyterLab extensions"""
 
 # Copyright (c) Jupyter Development Team.
@@ -53,7 +52,7 @@ def touch(file, mtime=None):
     dirname = os.path.dirname(file)
     if not os.path.exists(dirname):
         os.makedirs(dirname)
-    open(file, "a").close()
+    open(file, "a").close()  # noqa
     # set explicit mtime
     if mtime:
         atime = os.stat(file).st_atime
@@ -78,7 +77,7 @@ def setUp(self):
         # Any TemporaryDirectory objects appended to this list will be cleaned
         # up at the end of the test run.
         self.tempdirs = []
-        self.devnull = open(os.devnull, "w")
+        self.devnull = open(os.devnull, "w")  # noqa
 
         @self.addCleanup
         def cleanup_tempdirs():
@@ -89,7 +88,7 @@ def cleanup_tempdirs():
 
         self.data_dir = pjoin(self.test_dir, "data")
         self.config_dir = pjoin(self.test_dir, "config")
-        self.pkg_names = dict()
+        self.pkg_names = {}
 
         # Copy in the mock packages.
         for name in ["extension", "incompat", "package", "mimeextension"]:
@@ -261,7 +260,7 @@ def test_install_and_uninstall_pinned(self):
         You should be able to install different versions of the same extension with different
         pinned names and uninstall them with those names.
         """
-        NAMES = ["test-1", "test-2"]
+        NAMES = ["test-1", "test-2"]  # noqa
         assert install_extension(self.pinned_packages[0], pin=NAMES[0])
         assert install_extension(self.pinned_packages[1], pin=NAMES[1])
 
@@ -294,9 +293,9 @@ def test_install_and_uninstall_pinned_folder(self):
         # The archive file names are printed to stdout when run `npm pack`
         packages = [
             subprocess.run(
-                ["npm", "pack", name],
+                ["npm", "pack", name],  # noqa S603 S607
                 stdout=subprocess.PIPE,
-                universal_newlines=True,
+                text=True,
                 check=True,
                 cwd=str(base_dir),
             ).stdout.strip()
@@ -680,25 +679,25 @@ def _mock_metadata(registry, name, logger):
             }
 
         def _mock_extract(self, source, tempdir, *args, **kwargs):
-            data = dict(
-                name=source,
-                version="2.1.0",
-                jupyterlab=dict(extension=True),
-                jupyterlab_extracted_files=["index.js"],
-            )
+            data = {
+                "name": source,
+                "version": "2.1.0",
+                "jupyterlab": {"extension": True},
+                "jupyterlab_extracted_files": ["index.js"],
+            }
             data.update(_gen_dep("^2000.0.0"))
-            info = dict(
-                source=source,
-                is_dir=False,
-                data=data,
-                name=source,
-                version=data["version"],
-                filename="mockextension.tgz",
-                path=pjoin(tempdir, "mockextension.tgz"),
-            )
+            info = {
+                "source": source,
+                "is_dir": False,
+                "data": data,
+                "name": source,
+                "version": data["version"],
+                "filename": "mockextension.tgz",
+                "path": pjoin(tempdir, "mockextension.tgz"),
+            }
             return info
 
-        class Success(Exception):
+        class Success(Exception):  # noqa
             pass
 
         def _mock_install(self, name, *args, **kwargs):
@@ -720,7 +719,7 @@ def test_update_single(self):
 
         def _mock_install(self, name, *args, **kwargs):
             installed.append(name[0] + name[1:].split("@")[0])
-            return dict(name=name, is_dir=False, path="foo/bar/" + name)
+            return {"name": name, "is_dir": False, "path": "foo/bar/" + name}
 
         def _mock_latest(self, name):
             return "10000.0.0"
@@ -736,14 +735,14 @@ def _mock_latest(self, name):
         assert installed == [self.pkg_names["extension"]]
 
     def test_update_missing_extension(self):
-        assert False == update_extension("foo")
+        assert update_extension("foo") is False
 
     def test_update_multiple(self):
         installed = []
 
         def _mock_install(self, name, *args, **kwargs):
             installed.append(name[0] + name[1:].split("@")[0])
-            return dict(name=name, is_dir=False, path="foo/bar/" + name)
+            return {"name": name, "is_dir": False, "path": "foo/bar/" + name}
 
         def _mock_latest(self, name):
             return "10000.0.0"
diff --git a/jupyterlab/tests/test_registry.py b/jupyterlab/tests/test_registry.py
index 7415217a16db..87b96fab8a3c 100644
--- a/jupyterlab/tests/test_registry.py
+++ b/jupyterlab/tests/test_registry.py
@@ -55,7 +55,7 @@ def test_yarn_config(self):
     def test_yarn_config_failure(self):
         with patch("subprocess.check_output") as check_output:
             check_output.side_effect = subprocess.CalledProcessError(
-                1, ["yarn", "config", "list"], stderr=b"yarn config failed."
+                1, ["yarn", "config", "list"], b"", stderr=b"yarn config failed."
             )
 
             logger = logging.getLogger("jupyterlab")
@@ -107,5 +107,6 @@ def test_populate_staging(self):
             with open(lock_path) as f:
                 lock = f.read()
 
+            # yarn >=2.x does not record the registry in the lockfile
             self.assertNotIn(commands.YARN_DEFAULT_REGISTRY, lock)
-            self.assertIn(yarn_registry, lock)
+            self.assertNotIn(yarn_registry, lock)
diff --git a/jupyterlab/upgrade_extension.py b/jupyterlab/upgrade_extension.py
index dc56b7cf8aa0..f8b86ba2ccaa 100644
--- a/jupyterlab/upgrade_extension.py
+++ b/jupyterlab/upgrade_extension.py
@@ -1,143 +1,215 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+import configparser
 import json
-import os
-import os.path as osp
+import re
 import shutil
 import subprocess
 import sys
-from pathlib import Path
-
-import pkg_resources
+from typing import Optional
 
 try:
-    from cookiecutter.main import cookiecutter
+    import tomllib
 except ImportError:
-    raise RuntimeError("Please install cookiecutter")
-
-
-DEFAULT_COOKIECUTTER_BRANCH = "3.0"
+    import tomli as tomllib
 
+try:
+    from importlib.resources import files
+except ImportError:
+    from importlib_resources import files
+from pathlib import Path
 
-def update_extension(target, branch=DEFAULT_COOKIECUTTER_BRANCH, interactive=True):
+try:
+    import copier
+except ImportError:
+    msg = "Please install copier and jinja2-time"
+    raise RuntimeError(msg) from None
+
+# List of files recommended to be overridden
+RECOMMENDED_TO_OVERRIDE = [
+    ".github/workflows/binder-on-pr.yml",
+    ".github/workflows/build.yml",
+    ".github/workflows/check-release.yml",
+    ".github/workflows/enforce-label.yml",
+    ".github/workflows/prep-release.yml",
+    ".github/workflows/publish-release.yml",
+    ".github/workflows/update-integration-tests.yml",
+    "binder/postBuild",
+    ".eslintignore",
+    ".eslintrc.js",
+    ".gitignore",
+    ".prettierignore",
+    ".prettierrc",
+    ".stylelintrc",
+    "RELEASE.md",
+    "babel.config.js",
+    "conftest.py",
+    "jest.config.js",
+    "pyproject.toml",
+    "setup.py",
+    "tsconfig.json",
+    "tsconfig.test.json",
+    "ui-tests/README.md",
+    "ui-tests/jupyter_server_test_config.py",
+    "ui-tests/package.json",
+    "ui-tests/playwright.config.js",
+]
+
+JUPYTER_SERVER_REQUIREMENT = re.compile("^jupyter_server([^\\w]|$)")
+
+
+def update_extension(  # noqa
+    target: str, vcs_ref: Optional[str] = None, interactive: bool = True
+) -> None:
     """Update an extension to the current JupyterLab
 
     target: str
         Path to the extension directory containing the extension
-    branch: str [default: DEFAULT_COOKIECUTTER_BRANCH]
-        Template branch to checkout
+    vcs_ref: str [default: None]
+        Template vcs_ref to checkout
     interactive: bool [default: true]
         Whether to ask before overwriting content
 
     """
     # Input is a directory with a package.json or the current directory
-    # Use the cookiecutter as the source
+    # Use the extension template as the source
     # Pull in the relevant config
     # Pull in the Python parts if possible
     # Pull in the scripts if possible
-    target = osp.abspath(target)
-    package_file = osp.join(target, "package.json")
-    setup_file = osp.join(target, "setup.py")
-    if not osp.exists(package_file):
-        raise RuntimeError("No package.json exists in %s" % target)
+    target = Path(target).resolve()
+    package_file = target / "package.json"
+    pyproject_file = target / "pyproject.toml"
+    setup_file = target / "setup.py"
+    if not package_file.exists():
+        msg = f"No package.json exists in {target!s}"
+        raise RuntimeError(msg)
 
     # Infer the options from the current directory
     with open(package_file) as fid:
         data = json.load(fid)
 
-    if osp.exists(setup_file):
-        python_name = (
-            subprocess.check_output([sys.executable, "setup.py", "--name"], cwd=target)
-            .decode("utf8")
-            .strip()
-        )
-    else:
-        python_name = data["name"]
-        if "@" in python_name:
-            python_name = python_name[1:].replace("/", "_").replace("-", "_")
-
-    output_dir = osp.join(target, "_temp_extension")
-    if osp.exists(output_dir):
+    python_name = None
+    if pyproject_file.exists():
+        pyproject = tomllib.loads(pyproject_file.read_text())
+        python_name = pyproject.get("project", {}).get("name")
+
+    if python_name is None:
+        if setup_file.exists():
+            python_name = (
+                subprocess.check_output(
+                    [sys.executable, "setup.py", "--name"], cwd=target  # noqa S603
+                )
+                .decode("utf8")
+                .strip()
+            )
+        else:
+            python_name = data["name"]
+            if "@" in python_name:
+                python_name = python_name[1:]
+            # Clean up the name to be valid package module name
+        python_name = python_name.replace("/", "_").replace("-", "_")
+
+    output_dir = target / "_temp_extension"
+    if output_dir.exists():
         shutil.rmtree(output_dir)
 
-    # Build up the cookiecutter args and run the cookiecutter
-    extra_context = dict(
-        author_name=data.get("author", "<author_name>"),
-        labextension_name=data["name"],
-        project_short_description=data.get("description", "<description>"),
-        has_server_extension="y" if osp.exists(osp.join(target, "jupyter-config")) else "n",
-        has_binder="y" if osp.exists(osp.join(target, "binder")) else "n",
-        repository=data.get("repository", {}).get("url", "<repository"),
-        python_name=python_name,
-    )
-
-    template = "https://github.com/jupyterlab/extension-cookiecutter-ts"
-    cookiecutter(
-        template=template,
-        checkout=branch,
-        output_dir=output_dir,
-        extra_context=extra_context,
-        no_input=not interactive,
+    # Build up the template answers and run the template engine
+    author = data.get("author", "<author_name>")
+    author_email = ""
+    if isinstance(author, dict):
+        author_name = author.get("name", "<author_name>")
+        author_email = author.get("email", author_email)
+    else:
+        author_name = author
+
+    kind = "frontend"
+    if (target / "jupyter-config").exists():
+        kind = "server"
+    elif data.get("jupyterlab", {}).get("themePath", ""):
+        kind = "theme"
+
+    has_test = (
+        (target / "conftest.py").exists()
+        or (target / "jest.config.js").exists()
+        or (target / "ui-tests").exists()
     )
 
-    python_name = os.listdir(output_dir)[0]
-
-    # hoist the output up one level
-    shutil.move(osp.join(output_dir, python_name), osp.join(output_dir, "_temp"))
-    for filename in os.listdir(osp.join(output_dir, "_temp")):
-        shutil.move(osp.join(output_dir, "_temp", filename), osp.join(output_dir, filename))
-    shutil.rmtree(osp.join(output_dir, "_temp"))
-
-    # Check whether there are any phosphor dependencies
-    has_phosphor = False
-    for name in ["devDependencies", "dependencies"]:
-        if name not in data:
-            continue
-
-        for (key, value) in list(data[name].items()):
-            if key.startswith("@phosphor/"):
-                has_phosphor = True
-                data[name][key.replace("@phosphor/", "@lumino/")] = value
-
-        for key in list(data[name]):
-            if key.startswith("@phosphor/"):
-                del data[name][key]
+    extra_context = {
+        "kind": kind,
+        "author_name": author_name,
+        "author_email": author_email,
+        "labextension_name": data["name"],
+        "python_name": python_name,
+        "project_short_description": data.get("description", "<description>"),
+        "has_settings": bool(data.get("jupyterlab", {}).get("schemaDir", "")),
+        "has_binder": bool((target / "binder").exists()),
+        "test": bool(has_test),
+        "repository": data.get("repository", {}).get("url", "<repository"),
+    }
+
+    template = "https://github.com/jupyterlab/extension-template"
+    if tuple(copier.__version__.split('.')) < ('8', '0', '0'):
+        copier.run_auto(template, output_dir, vcs_ref=vcs_ref, data=extra_context, defaults=True)
+    else:
+        copier.run_copy(
+            template, output_dir, vcs_ref=vcs_ref, data=extra_context, defaults=True, unsafe=True
+        )
 
     # From the created package.json grab the devDependencies
-    with open(osp.join(output_dir, "package.json")) as fid:
+    with (output_dir / "package.json").open() as fid:
         temp_data = json.load(fid)
 
     if data.get("devDependencies"):
-        for (key, value) in temp_data["devDependencies"].items():
+        for key, value in temp_data["devDependencies"].items():
             data["devDependencies"][key] = value
     else:
         data["devDependencies"] = temp_data["devDependencies"].copy()
 
     # Ask the user whether to upgrade the scripts automatically
     warnings = []
-    if interactive:
-        choice = input("overwrite scripts in package.json? [n]: ")
-    else:
-        choice = "y"
+    choice = input("Overwrite scripts in package.json? [n]: ") if interactive else "y"
     if choice.upper().startswith("Y"):
         warnings.append("Updated scripts in package.json")
-        data.setdefault("scripts", dict())
-        for (key, value) in temp_data["scripts"].items():
+        data.setdefault("scripts", {})
+        for key, value in temp_data["scripts"].items():
             data["scripts"][key] = value
         if "install-ext" in data["scripts"]:
             del data["scripts"]["install-ext"]
+        if "prepare" in data["scripts"]:
+            del data["scripts"]["prepare"]
     else:
         warnings.append("package.json scripts must be updated manually")
 
     # Set the output directory
     data["jupyterlab"]["outputDir"] = temp_data["jupyterlab"]["outputDir"]
 
+    # Set linters
+    ## Map package.json key to previous config file
+    linters = {
+        "eslintConfig": ".eslintrc.js",
+        "eslintIgnore": ".eslintignore",
+        "prettier": ".prettierrc",
+        "stylelint": ".stylelintrc",
+    }
+
+    for key, file in linters.items():
+        if key in temp_data:
+            data[key] = temp_data[key]
+
+            linter_file = target / file
+            if linter_file.exists():
+                linter_file.unlink()
+                warnings.append(f"DELETED {file}")
+
     # Look for resolutions in JupyterLab metadata and upgrade those as well
-    root_jlab_package = pkg_resources.resource_filename("jupyterlab", "staging/package.json")
-    with open(root_jlab_package) as fid:
+    root_jlab_package = files("jupyterlab").joinpath("staging/package.json")
+    with root_jlab_package.open() as fid:
         root_jlab_data = json.load(fid)
 
-    data.setdefault("dependencies", dict())
-    data.setdefault("devDependencies", dict())
-    for (key, value) in root_jlab_data["resolutions"].items():
+    data.setdefault("dependencies", {})
+    data.setdefault("devDependencies", {})
+    for key, value in root_jlab_data["resolutions"].items():
         if key in data["dependencies"]:
             data["dependencies"][key] = value.replace("~", "^")
         if key in data["devDependencies"]:
@@ -158,37 +230,90 @@ def update_extension(target, branch=DEFAULT_COOKIECUTTER_BRANCH, interactive=Tru
         data["files"].append("style/index.js")
 
     # Update the root package.json file
-    with open(package_file, "w") as fid:
-        json.dump(data, fid, indent=2)
+    package_file.write_text(json.dumps(data, indent=2))
 
+    override_pyproject = False
     # For the other files, ask about whether to override (when it exists)
     # At the end, list the files that were: added, overridden, skipped
-    path = Path(output_dir)
-    for p in path.rglob("*"):
-        relpath = osp.relpath(p, path)
-        if relpath == "package.json":
+    for p in output_dir.rglob("*"):
+        relpath = p.relative_to(output_dir)
+        if str(relpath) == "package.json":
             continue
         if p.is_dir():
             continue
-        file_target = osp.join(target, relpath)
-        if not osp.exists(file_target):
-            os.makedirs(osp.dirname(file_target), exist_ok=True)
+        file_target = target / relpath
+        if not file_target.exists():
+            file_target.parent.mkdir(parents=True, exist_ok=True)
             shutil.copy(p, file_target)
+            if file_target.name == "pyproject.toml":
+                override_pyproject = True
         else:
-            with open(p, "rb") as fid:
-                old_data = fid.read()
-            with open(file_target, "rb") as fid:
-                new_data = fid.read()
+            old_data = p.read_bytes()
+            new_data = file_target.read_bytes()
             if old_data == new_data:
                 continue
-            if interactive:
-                choice = input('overwrite "%s"? [n]: ' % relpath)
-            else:
-                choice = "n"
+            default = "y" if relpath.as_posix() in RECOMMENDED_TO_OVERRIDE else "n"
+            choice = (
+                (input(f'overwrite "{relpath!s}"? [{default}]: ') or default)
+                if interactive
+                else "n"
+            )
             if choice.upper().startswith("Y"):
                 shutil.copy(p, file_target)
+                if file_target.name == "pyproject.toml":
+                    override_pyproject = True
             else:
-                warnings.append("skipped _temp_extension/%s" % relpath)
+                warnings.append(f"skipped _temp_extension/{relpath!s}")
+
+    if override_pyproject:
+        if (target / "setup.cfg").exists():
+            try:
+                import tomli_w
+            except ImportError:
+                msg = "To update pyproject.toml, you need to install tomli-w"
+                print(msg)
+            else:
+                config = configparser.ConfigParser()
+                with (target / "setup.cfg").open() as setup_cfg_file:
+                    config.read_file(setup_cfg_file)
+
+                pyproject_file = target / "pyproject.toml"
+                pyproject = tomllib.loads(pyproject_file.read_text())
+
+                # Backport requirements
+                requirements_raw = config.get('options', 'install_requires', fallback=None)
+                if requirements_raw is not None:
+                    requirements = list(
+                        filter(
+                            lambda r: r and JUPYTER_SERVER_REQUIREMENT.match(r) is None,
+                            requirements_raw.splitlines(),
+                        )
+                    )
+                else:
+                    requirements = []
+
+                pyproject["project"]["dependencies"] = (
+                    pyproject["project"].get("dependencies", []) + requirements
+                )
+
+                # Backport extras
+                if config.has_section('options.extras_require'):
+                    for extra, deps_raw in config.items('options.extras_require'):
+                        deps = list(filter(lambda r: r, deps_raw.splitlines()))
+                        if extra in pyproject["project"].get("optional-dependencies", {}):
+                            if pyproject["project"].get("optional-dependencies") is None:
+                                pyproject["project"]["optional-dependencies"] = {}
+                            deps = pyproject["project"]["optional-dependencies"][extra] + deps
+                        pyproject["project"]["optional-dependencies"][extra] = deps
+
+                pyproject_file.write_text(tomli_w.dumps(pyproject))
+                (target / "setup.cfg").unlink()
+                warnings.append("DELETED setup.cfg")
+
+        manifest_in = target / "MANIFEST.in"
+        if manifest_in.exists():
+            manifest_in.unlink()
+            warnings.append("DELETED MANIFEST.in")
 
     # Print out all warnings
     for warning in warnings:
@@ -196,11 +321,6 @@ def update_extension(target, branch=DEFAULT_COOKIECUTTER_BRANCH, interactive=Tru
 
     print("** Remove _temp_extensions directory when finished")
 
-    if has_phosphor:
-        print(
-            "** Phosphor dependencies were upgraded to lumino dependencies, update imports as needed"
-        )
-
 
 if __name__ == "__main__":
     import argparse
@@ -211,10 +331,16 @@ def update_extension(target, branch=DEFAULT_COOKIECUTTER_BRANCH, interactive=Tru
 
     parser.add_argument("path", action="store", type=str, help="the target path")
 
-    parser.add_argument(
-        "--branch", help="the template branch to checkout", default=DEFAULT_COOKIECUTTER_BRANCH
-    )
+    parser.add_argument("--vcs-ref", help="the template hash to checkout", default=None)
 
     args = parser.parse_args()
 
-    update_extension(args.path, args.branch, args.no_input == False)
+    answer_file = Path(args.path) / ".copier-answers.yml"
+
+    if answer_file.exists():
+        msg = "This script won't do anything for copier template, instead execute in your extension directory:\n\n    copier update"
+        if tuple(copier.__version__.split('.')) >= ('8', '0', '0'):
+            msg += " --UNSAFE"
+        print(msg)
+    else:
+        update_extension(args.path, args.vcs_ref, args.no_input is False)
diff --git a/jupyterlab/utils.py b/jupyterlab/utils.py
index a9c3a47bad0d..a2662a2c3c9e 100644
--- a/jupyterlab/utils.py
+++ b/jupyterlab/utils.py
@@ -1,8 +1,11 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 import functools
 import warnings
 
 
-class jupyterlab_deprecation(Warning):
+class jupyterlab_deprecation(Warning):  # noqa
     """Create our own deprecation class, since Python >= 2.7
     silences deprecations by default.
     """
@@ -10,7 +13,7 @@ class jupyterlab_deprecation(Warning):
     pass
 
 
-class deprecated(object):
+class deprecated:  # noqa
     """Decorator to mark deprecated functions with warning.
     Adapted from `scikit-image/skimage/_shared/utils.py`.
 
@@ -31,7 +34,6 @@ def __init__(self, alt_func=None, behavior="warn", removed_version=None):
         self.removed_version = removed_version
 
     def __call__(self, func):
-
         alt_msg = ""
         if self.alt_func is not None:
             alt_msg = " Use ``%s`` instead." % self.alt_func
diff --git a/lerna.json b/lerna.json
index bd5bfb61a413..f7ba698e15e2 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,6 +1,5 @@
 {
-  "lerna": "3.2.1",
+  "$schema": "node_modules/lerna/schemas/lerna-schema.json",
   "version": "independent",
-  "npmClient": "yarn",
-  "useWorkspaces": true
+  "npmClient": "yarn"
 }
diff --git a/package.json b/package.json
index c6b77c73c0b4..dfca9df864d4 100644
--- a/package.json
+++ b/package.json
@@ -3,120 +3,131 @@
   "version": "0.0.1",
   "private": true,
   "files": [],
-  "workspaces": {
-    "packages": [
-      "dev_mode",
-      "examples/*",
-      "examples/federated/*",
-      "packages/*",
-      "packages/services/examples/node",
-      "packages/services/examples/browser",
-      "packages/services/examples/typescript-browser-with-output",
-      "builder",
-      "buildutils",
-      "buildutils/template",
-      "buildutils/test-template",
-      "galata",
-      "tests",
-      "tests/test-*",
-      "testutils",
-      "jupyterlab/tests/mock_packages/extension",
-      "jupyterlab/tests/mock_packages/interop/*"
-    ]
-  },
+  "workspaces": [
+    "dev_mode",
+    "examples/*",
+    "examples/federated/*",
+    "packages/*",
+    "packages/services/examples/node",
+    "packages/services/examples/browser",
+    "packages/services/examples/typescript-browser-with-output",
+    "packages/ui-components/examples/*",
+    "builder",
+    "buildutils",
+    "buildutils/template",
+    "buildutils/test-template",
+    "galata",
+    "galata/extension",
+    "tests",
+    "tests/test-*",
+    "testutils",
+    "jupyterlab/tests/mock_packages/extension",
+    "jupyterlab/tests/mock_packages/interop/*"
+  ],
   "scripts": {
-    "add:sibling": "node buildutils/lib/add-sibling.js",
-    "after:publish:assets": "jlpm && jlpm run build:utils && node buildutils/lib/publish --skip-publish",
-    "analyze": "jlpm run analyze:dev",
-    "analyze:dev": "cd dev_mode && jlpm run build --analyze",
-    "analyze:prod": "cd dev_mode && jlpm run build:prod --analyze",
+    "after:publish:assets": "jlpm && npm run build:utils && node buildutils/lib/publish --skip-publish",
+    "analyze": "npm run analyze:dev",
+    "analyze:dev": "cd dev_mode && npm run build --analyze",
+    "analyze:prod": "cd dev_mode && npm run build:prod --analyze",
     "before:build:python": "node buildutils/lib/local-repository.js publish-dists --path ./dist && node buildutils/lib/update-core-mode.js",
-    "build": "jlpm run build:dev",
+    "build": "npm run build:dev",
+    "prebuild:all": "npm run build:utils && npm run build:builder",
     "build:all": "lerna run build:all",
-    "build:builder": "cd builder && jlpm run build",
-    "build:core": "cd jupyterlab/staging && jlpm && (jlpm deduplicate || jlpm) && jlpm run build",
-    "build:dev": "jlpm run integrity && jlpm run build:all && cd dev_mode && jlpm run build",
-    "build:dev:prod": "jlpm run integrity && jlpm run build:all && cd dev_mode && jlpm run build:prod",
-    "build:dev:prod:release": "jlpm run integrity && jlpm run build:all && cd dev_mode && jlpm run build:prod:release",
+    "postbuild:all": "npm run build:testutils && npm run build:galata",
+    "build:builder": "cd builder && npm run build",
+    "build:core": "cd jupyterlab/staging && jlpm && (jlpm dlx yarn-berry-deduplicate -s fewerHighest || jlpm) && jlpm && npm run build",
+    "build:dev": "npm run integrity && npm run build:all && cd dev_mode && npm run build",
+    "build:dev:prod": "npm run integrity && npm run build:all && cd dev_mode && npm run build:prod",
+    "build:dev:prod:minimize": "npm run integrity && npm run build:all && cd dev_mode && npm run build:prod:minimize",
+    "build:dev:prod:minimize:report": "npm run integrity && npm run build:all && cd dev_mode && npm run build:prod:minimize:report",
+    "build:dev:prod:release": "npm run integrity && npm run build:all && cd dev_mode && npm run build:prod:release",
     "build:examples": "lerna run build --scope \"@jupyterlab/example-*\"",
-    "build:galata": "cd galata && jlpm run build",
-    "build:nbconvert:css": "cd packages/nbconvert-css && jlpm run build",
-    "build:packages": "cd packages/metapackage && jlpm run build",
+    "build:galata": "cd galata && npm run build",
+    "build:nbconvert:css": "cd packages/nbconvert-css && npm run build",
+    "build:packages": "cd packages/metapackage && npm run build",
     "build:packages:scope": "lerna run build",
     "build:src": "lerna run build --scope \"@jupyterlab/!(test-|example-|application-top)*\" --concurrency 1",
-    "build:storybook": "lerna run build:storybook --concurrency 1",
     "build:test": "lerna run build:test",
-    "build:test:scope": "lerna run build --concurrency 1",
-    "build:testutils": "cd testutils && jlpm run build",
-    "build:utils": "cd buildutils && jlpm run build",
+    "build:test:scope": "lerna run build:test --concurrency 1",
+    "build:testutils": "cd testutils && npm run build",
+    "build:utils": "cd buildutils && npm run build",
     "bump:js:major": "node buildutils/lib/bump-js-major.js",
     "bumpversion": "node buildutils/lib/bumpversion.js",
-    "clean": "jlpm run clean:dev && jlpm run clean:packages",
-    "clean:core": "cd jupyterlab/staging && jlpm run clean",
-    "clean:dev": "cd dev_mode && jlpm run clean",
+    "clean": "npm run clean:dev && npm run clean:packages",
+    "clean:core": "cd jupyterlab/staging && npm run clean",
+    "clean:dev": "cd dev_mode && npm run clean",
     "clean:examples": "node buildutils/lib/clean-packages.js examples",
-    "clean:galata": "cd galata && jlpm run clean",
+    "clean:galata": "cd galata && npm run clean",
     "clean:packages": "node buildutils/lib/clean-packages.js packages",
     "clean:slate": "python clean.py && python -m pip install -v -e .",
-    "clean:src": "jlpm run clean",
+    "clean:src": "npm run clean",
     "clean:test": "lerna run clean --scope \"@jupyterlab/test-*\"",
-    "clean:utils": "cd buildutils && jlpm run clean",
+    "clean:utils": "cd buildutils && npm run clean",
     "coverage": "lerna run coverage --scope \"@jupyterlab/test-*\" --stream --concurrency 1",
     "create:package": "node buildutils/lib/create-package.js",
     "create:test": "node buildutils/lib/create-test-package.js",
-    "create:theme": "node buildutils/lib/create-theme.js",
-    "deduplicate": "jlpm yarn-deduplicate -s fewer --fail",
+    "deduplicate": "jlpm dlx yarn-berry-deduplicate -s fewerHighest && jlpm install",
     "docs": "typedoc --options typedoc.js",
     "docs:init": "lerna run docs:init",
-    "eslint": "eslint --ext .js,.jsx,.ts,.tsx --fix .",
-    "eslint:check": "eslint --ext .js,.jsx,.ts,.tsx .",
+    "eslint": "eslint --ext .js,.jsx,.ts,.tsx --cache --fix .",
+    "eslint:check": "eslint --ext .js,.jsx,.ts,.tsx --cache .",
+    "eslint:check:typed": "eslint --config .eslintrc.typecheck.js --ext .js,.jsx,.ts,.tsx --cache .",
     "eslint:files": "eslint --fix",
+    "eslint:typed": "eslint --config .eslintrc.typecheck.js --cache --ext .js,.jsx,.ts,.tsx --fix .",
     "get:dependency": "node buildutils/lib/get-dependency.js",
     "postinstall": "node scripts/ensure-buildutils.js",
     "integrity": "node scripts/ensure-buildutils.js && node buildutils/lib/ensure-repo.js",
-    "lighthouse": "lighthouse http://localhost:8888/ --chrome-flags='--headless' --emulated-form-factor=none --throttling-method=provided --only-categories performance",
-    "lighthouse:compare": "node testutils/lib/compare-lighthouse.js",
-    "lighthouse:throttling:start": "comcast --latency=40 --target-bw=30000 --packet-loss=0.2%",
-    "lighthouse:throttling:stop": "comcast --stop",
-    "lint": "jlpm && jlpm run prettier && jlpm run eslint",
-    "lint:check": "jlpm run prettier:check && jlpm run eslint:check",
+    "lint": "jlpm && jlpm prettier && jlpm eslint && jlpm stylelint",
+    "lint:check": "jlpm prettier:check && jlpm eslint:check && jlpm stylelint:check",
     "patch:release": "node buildutils/lib/patch-release.js",
     "prepare:python-release": "node buildutils/lib/prepare-python-release.js",
     "prepublish:check": "node buildutils/lib/prepublish-check.js",
-    "prettier": "prettier --write \"**/*{.ts,.tsx,.js,.jsx,.css,.json}\"",
-    "prettier:check": "prettier --check \"**/*{.ts,.tsx,.js,.jsx,.css,.json}\"",
+    "prettier": "prettier --list-different --write \"**/*{.ts,.tsx,.js,.jsx,.css,.json,.md}\"",
+    "prettier:check": "prettier --check \"**/*{.ts,.tsx,.js,.jsx,.css,.json,.md}\"",
     "prettier:files": "prettier --write",
     "publish:js": "node buildutils/lib/publish.js",
     "remove:dependency": "node buildutils/lib/remove-dependency.js",
     "remove:package": "node buildutils/lib/remove-package.js",
     "remove:sibling": "node buildutils/lib/remove-package.js",
-    "test": "lerna run test --scope \"@jupyterlab/*\" --concurrency 1 --stream",
-    "test:all": "lerna run test --scope \"@jupyterlab/*\" --concurrency 1 --stream --no-bail",
+    "stylelint": "jlpm stylelint:check --fix",
+    "stylelint:check": "stylelint --cache \"{packages/*,galata}/style/**/*.css\" \"{examples/*,docs/**}/*.css\"",
+    "stylelint:files": "stylelint --fix",
+    "test": "lerna run test --scope \"@jupyterlab/!(galata|template)*\" --concurrency 1 --stream",
+    "test:all": "lerna run test --scope \"@jupyterlab/!(galata|template)*\" --concurrency 1 --stream --no-bail",
     "test:examples": "python examples/test_examples.py",
     "test:galata": "lerna run test --scope \"@jupyterlab/galata\" --concurrency 1 --stream",
     "test:scope": "lerna run test --concurrency 1 --stream",
-    "test:summary": "lerna run test --scope \"@jupyterlab/*\" --parallel --no-bail | grep -Ei '.* test.*(failed|passed|total|completed|skipped)' | sort",
+    "test:summary": "lerna run test --scope \"@jupyterlab/!(galata|template)*\" --parallel --no-bail | grep -Ei '.* test.*(failed|passed|total|completed|skipped)' | sort",
     "update:dependency": "node buildutils/lib/update-dependency.js --lerna",
     "watch": "python scripts/watch_dev.py",
-    "watch:main": "jlpm run watch",
+    "watch:main": "npm run watch",
     "watch:packages": "python scripts/watch_packages.py"
   },
   "resolutions": {
-    "@types/node": "^14.6.1",
-    "vega-typings": "~0.22.0"
+    "@jupyterlab/services/ws": "8.12.0",
+    "@types/react": "^18.0.26",
+    "react": "^18.2.0",
+    "yjs": "^13.5.40"
+  },
+  "dependencies": {
+    "@typescript-eslint/eslint-plugin": "~5.55.0",
+    "@typescript-eslint/parser": "~5.55.0",
+    "eslint": "~8.36.0",
+    "eslint-config-prettier": "~8.7.0",
+    "eslint-plugin-jest": "~27.2.1",
+    "eslint-plugin-prettier": "~5.0.0",
+    "eslint-plugin-react": "~7.32.2",
+    "prettier": "~3.0.0",
+    "stylelint": "^15.10.1",
+    "stylelint-config-prettier": "^9.0.3",
+    "stylelint-config-recommended": "^13.0.0",
+    "stylelint-config-standard": "^34.0.0",
+    "stylelint-csstree-validator": "^3.0.0",
+    "stylelint-prettier": "^4.0.0"
   },
-  "dependencies": {},
   "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "~4.8.1",
-    "@typescript-eslint/parser": "~4.8.1",
-    "eslint": "~7.14.0",
-    "eslint-config-prettier": "~6.15.0",
-    "eslint-plugin-jest": "~24.1.3",
-    "eslint-plugin-prettier": "~3.1.4",
-    "eslint-plugin-react": "~7.21.5",
-    "lerna": "^4.0.0",
-    "prettier": "~2.1.1",
-    "typedoc": "~0.21.2",
-    "yarn": "1.21.1"
+    "lerna": "^7.1.4",
+    "typedoc": "~0.24.7",
+    "typedoc-plugin-mdn-links": "^3.0.3"
   }
 }
diff --git a/packages/application-extension/package.json b/packages/application-extension/package.json
index 02d529b8ec61..699c5018ecb7 100644
--- a/packages/application-extension/package.json
+++ b/packages/application-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/application-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Application Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,24 +38,26 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/property-inspector": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/property-inspector": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/application-extension/schema/commands.json b/packages/application-extension/schema/commands.json
index d1111f83a162..cc39ccb9c32f 100644
--- a/packages/application-extension/schema/commands.json
+++ b/packages/application-extension/schema/commands.json
@@ -71,28 +71,64 @@
         "id": "jp-mainmenu-view",
         "items": [
           {
-            "type": "separator",
-            "rank": 1
-          },
-          {
-            "command": "application:toggle-mode",
-            "rank": 1
-          },
-          {
-            "command": "application:toggle-presentation-mode",
-            "rank": 1
+            "type": "submenu",
+            "rank": 1,
+            "submenu": {
+              "id": "jp-mainmenu-view-appearance",
+              "label": "Appearance",
+              "items": [
+                {
+                  "command": "application:toggle-mode",
+                  "rank": 0
+                },
+                {
+                  "command": "application:toggle-presentation-mode",
+                  "rank": 0
+                },
+                {
+                  "type": "separator",
+                  "rank": 10
+                },
+                {
+                  "command": "application:toggle-left-area",
+                  "rank": 11
+                },
+                {
+                  "command": "application:toggle-side-tabbar",
+                  "rank": 12,
+                  "args": {
+                    "side": "left"
+                  }
+                },
+                {
+                  "command": "application:toggle-right-area",
+                  "rank": 13
+                },
+                {
+                  "command": "application:toggle-side-tabbar",
+                  "rank": 14,
+                  "args": {
+                    "side": "right"
+                  }
+                },
+                {
+                  "command": "application:toggle-header",
+                  "rank": 15
+                },
+                {
+                  "type": "separator",
+                  "rank": 50
+                },
+                {
+                  "command": "application:reset-layout",
+                  "rank": 51
+                }
+              ]
+            }
           },
           {
             "type": "separator",
-            "rank": 2
-          },
-          {
-            "command": "application:toggle-left-area",
-            "rank": 2
-          },
-          {
-            "command": "application:toggle-right-area",
-            "rank": 2
+            "rank": 1
           }
         ]
       }
@@ -100,17 +136,22 @@
     "context": [
       {
         "command": "application:close",
-        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar.jp-Activity .lm-TabBar-tab",
+        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar .lm-TabBar-tab",
         "rank": 4
       },
       {
         "command": "application:close-other-tabs",
-        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar.jp-Activity .lm-TabBar-tab",
+        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar .lm-TabBar-tab",
+        "rank": 4
+      },
+      {
+        "command": "application:close-all",
+        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar .lm-TabBar-tab",
         "rank": 4
       },
       {
         "command": "application:close-right-tabs",
-        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar.jp-Activity .lm-TabBar-tab",
+        "selector": "#jp-main-dock-panel .lm-DockPanel-tabBar .lm-TabBar-tab",
         "rank": 5
       },
       {
diff --git a/packages/application-extension/schema/property-inspector.json b/packages/application-extension/schema/property-inspector.json
new file mode 100644
index 000000000000..cb1367a71c0b
--- /dev/null
+++ b/packages/application-extension/schema/property-inspector.json
@@ -0,0 +1,27 @@
+{
+  "title": "Property Inspector",
+  "description": "Property Inspector Settings.",
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "command": "property-inspector:show-panel",
+            "rank": 2
+          }
+        ]
+      }
+    ]
+  },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "property-inspector:show-panel",
+      "keys": ["Accel Shift U"],
+      "selector": "body"
+    }
+  ],
+  "properties": {},
+  "additionalProperties": false,
+  "type": "object"
+}
diff --git a/packages/application-extension/schema/shell.json b/packages/application-extension/schema/shell.json
index 1217b4754924..0bab5cbc0bc0 100644
--- a/packages/application-extension/schema/shell.json
+++ b/packages/application-extension/schema/shell.json
@@ -1,6 +1,16 @@
 {
+  "$schema": "http://json-schema.org/draft-07/schema",
   "title": "JupyterLab Shell",
   "description": "JupyterLab Shell layout settings.",
+  "jupyter.lab.menus": {
+    "context": [
+      {
+        "command": "sidebar:switch",
+        "selector": ".jp-SideBar .lm-TabBar-tab",
+        "rank": 500
+      }
+    ]
+  },
   "properties": {
     "hiddenMode": {
       "type": "string",
@@ -8,8 +18,79 @@
       "description": "The method for hiding widgets in the main dock panel. Using `scale` will increase performance on Firefox but don't use it with Chrome, Chromium or Edge. Similar performance gains are seen with `contentVisibility` which is only available in Chromium-based browsers.",
       "enum": ["display", "scale", "contentVisibility"],
       "default": "display"
+    },
+    "startMode": {
+      "enum": ["", "single", "multiple"],
+      "title": "Start mode: ``, `single` or `multiple`",
+      "description": "The mode under which JupyterLab should start. If empty, the mode will be imposed by the URL",
+      "default": ""
+    },
+    "layout": {
+      "type": "object",
+      "title": "Customize shell widget positioning",
+      "description": "Overrides default widget position in the application layout\ne.g. to position terminals in the right sidebar in multiple documents mode and in the down are in single document mode, {\n  \"single\": { \"Terminal\": { \"area\": \"down\" } },\n  \"multiple\": { \"Terminal\": { \"area\": \"right\" } }\n}.",
+      "properties": {
+        "single": {
+          "$ref": "#/definitions/layout",
+          "default": {
+            "Linked Console": { "area": "down" },
+            "Inspector": { "area": "down" },
+            "Cloned Output": { "area": "down" }
+          }
+        },
+        "multiple": { "$ref": "#/definitions/layout", "default": {} }
+      },
+      "default": {
+        "single": {
+          "Linked Console": { "area": "down" },
+          "Inspector": { "area": "down" },
+          "Cloned Output": { "area": "down" }
+        },
+        "multiple": {}
+      },
+      "additionalProperties": false
     }
   },
   "additionalProperties": false,
-  "type": "object"
+  "type": "object",
+  "definitions": {
+    "layout": {
+      "type": "object",
+      "properties": {
+        "[\\w-]+": {
+          "type": "object",
+          "properties": {
+            "area": {
+              "enum": ["main", "left", "right", "down"]
+            },
+            "options": {
+              "$ref": "#/definitions/options"
+            }
+          },
+          "additionalProperties": false
+        }
+      }
+    },
+    "options": {
+      "type": "object",
+      "properties": {
+        "mode": {
+          "type": "string",
+          "enum": [
+            "split-top",
+            "split-left",
+            "split-right",
+            "split-bottom",
+            "tab-before",
+            "tab-after"
+          ]
+        },
+        "rank": { "type": "number", "minimum": 0 },
+        "ref": {
+          "type": "string",
+          "minLength": 1
+        }
+      }
+    }
+  }
 }
diff --git a/packages/application-extension/schema/sidebar.json b/packages/application-extension/schema/sidebar.json
deleted file mode 100644
index 6e419fcf7c73..000000000000
--- a/packages/application-extension/schema/sidebar.json
+++ /dev/null
@@ -1,29 +0,0 @@
-{
-  "jupyter.lab.setting-icon-label": "Sidebar",
-  "title": "Sidebar",
-  "description": "Sidebar layout settings.",
-  "jupyter.lab.menus": {
-    "context": [
-      {
-        "command": "sidebar:switch",
-        "selector": ".jp-SideBar .lm-TabBar-tab",
-        "rank": 500
-      }
-    ]
-  },
-  "properties": {
-    "overrides": {
-      "type": "object",
-      "title": "Overrides",
-      "default": {},
-      "description": "Overrides for where to show sidebar items\ne.g., {\"jp-debugger-sidebar\": \"left\"}\nYou can also change this by right-clicking the sidebar icons.",
-      "properties": {},
-      "additionalProperties": {
-        "type": "string",
-        "enum": ["left", "right"]
-      }
-    }
-  },
-  "additionalProperties": false,
-  "type": "object"
-}
diff --git a/packages/application-extension/schema/top-bar.json b/packages/application-extension/schema/top-bar.json
new file mode 100644
index 000000000000..036ca9d787a2
--- /dev/null
+++ b/packages/application-extension/schema/top-bar.json
@@ -0,0 +1,80 @@
+{
+  "title": "Top Bar",
+  "description": "Top Bar settings.",
+  "jupyter.lab.toolbars": {
+    "TopBar": [
+      {
+        "name": "spacer",
+        "type": "spacer",
+        "rank": 50
+      }
+    ]
+  },
+  "jupyter.lab.transform": true,
+  "properties": {
+    "toolbar": {
+      "title": "Top bar items",
+      "description": "Note: To disable a item,\ncopy it to User Preferences and add the\n\"disabled\" key. The following example will disable the user menu:\n{\n  \"toolbar\": [\n    {\n      \"name\": \"user-menu\",\n      \"disabled\": true\n    }\n  ]\n}\n\nTop bar description:",
+      "items": {
+        "$ref": "#/definitions/toolbarItem"
+      },
+      "type": "array",
+      "default": []
+    }
+  },
+  "additionalProperties": false,
+  "type": "object",
+  "definitions": {
+    "toolbarItem": {
+      "properties": {
+        "name": {
+          "title": "Unique name",
+          "type": "string"
+        },
+        "args": {
+          "title": "Command arguments",
+          "type": "object"
+        },
+        "command": {
+          "title": "Command id",
+          "type": "string",
+          "default": ""
+        },
+        "disabled": {
+          "title": "Whether the item is ignored or not",
+          "type": "boolean",
+          "default": false
+        },
+        "icon": {
+          "title": "Item icon id",
+          "description": "If defined, it will override the command icon",
+          "type": "string"
+        },
+        "label": {
+          "title": "Item label",
+          "description": "If defined, it will override the command label",
+          "type": "string"
+        },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
+        "type": {
+          "title": "Item type",
+          "type": "string",
+          "enum": ["command", "spacer"]
+        },
+        "rank": {
+          "title": "Item rank",
+          "type": "number",
+          "minimum": 0,
+          "default": 50
+        }
+      },
+      "required": ["name"],
+      "additionalProperties": false,
+      "type": "object"
+    }
+  }
+}
diff --git a/packages/application-extension/src/index.tsx b/packages/application-extension/src/index.tsx
index 0bd6439da948..139646d89710 100644
--- a/packages/application-extension/src/index.tsx
+++ b/packages/application-extension/src/index.tsx
@@ -36,18 +36,30 @@ import {
 } from '@jupyterlab/property-inspector';
 import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { IStateDB } from '@jupyterlab/statedb';
-import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
+import { IStatusBar } from '@jupyterlab/statusbar';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
 import {
   buildIcon,
   ContextMenuSvg,
   jupyterIcon,
-  RankedMenu
+  RankedMenu,
+  Switch
 } from '@jupyterlab/ui-components';
-import { each, iter, toArray } from '@lumino/algorithm';
-import { JSONExt, PromiseDelegate } from '@lumino/coreutils';
+import { find, some } from '@lumino/algorithm';
+import {
+  JSONExt,
+  PromiseDelegate,
+  ReadonlyPartialJSONValue
+} from '@lumino/coreutils';
+import { CommandRegistry } from '@lumino/commands';
 import { DisposableDelegate, DisposableSet } from '@lumino/disposable';
 import { DockLayout, DockPanel, Widget } from '@lumino/widgets';
 import * as React from 'react';
+import { topbar } from './topbar';
 
 /**
  * Default context menu item rank
@@ -78,12 +90,20 @@ namespace CommandIDs {
 
   export const setMode: string = 'application:set-mode';
 
+  export const showPropertyPanel: string = 'property-inspector:show-panel';
+
+  export const resetLayout: string = 'application:reset-layout';
+
+  export const toggleHeader: string = 'application:toggle-header';
+
   export const toggleMode: string = 'application:toggle-mode';
 
   export const toggleLeftArea: string = 'application:toggle-left-area';
 
   export const toggleRightArea: string = 'application:toggle-right-area';
 
+  export const toggleSideTabBar: string = 'application:toggle-side-tabbar';
+
   export const togglePresentationMode: string =
     'application:toggle-presentation-mode';
 
@@ -97,6 +117,7 @@ namespace CommandIDs {
  */
 const mainCommands: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:commands',
+  description: 'Adds commands related to the shell.',
   autoStart: true,
   requires: [ITranslator],
   optional: [ILabShell, ICommandPalette],
@@ -127,15 +148,10 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
         return shell.currentWidget;
       }
 
-      const matches = toArray(shell.widgets('main')).filter(
-        widget => widget.id === node.dataset.id
+      return (
+        find(shell.widgets('main'), widget => widget.id === node.dataset.id) ||
+        shell.currentWidget
       );
-
-      if (matches.length < 1) {
-        return shell.currentWidget;
-      }
-
-      return matches[0];
     };
 
     // Closes an array of widgets.
@@ -148,26 +164,18 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
       area: DockLayout.AreaConfig,
       widget: Widget
     ): DockLayout.ITabAreaConfig | null => {
-      switch (area.type) {
-        case 'split-area': {
-          const iterator = iter(area.children);
-          let tab: DockLayout.ITabAreaConfig | null = null;
-          let value: DockLayout.AreaConfig | undefined;
-          do {
-            value = iterator.next();
-            if (value) {
-              tab = findTab(value, widget);
-            }
-          } while (!tab && value);
-          return tab;
-        }
-        case 'tab-area': {
-          const { id } = widget;
-          return area.widgets.some(widget => widget.id === id) ? area : null;
+      if (area.type === 'tab-area') {
+        return area.widgets.includes(widget) ? area : null;
+      }
+      if (area.type === 'split-area') {
+        for (const child of area.children) {
+          const found = findTab(child, widget);
+          if (found) {
+            return found;
+          }
         }
-        default:
-          return null;
       }
+      return null;
     };
 
     // Find the tab area for a widget within the main dock area.
@@ -178,10 +186,7 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
         return null;
       }
       const area = mainArea.dock?.main;
-      if (!area) {
-        return null;
-      }
-      return findTab(area, widget);
+      return area ? findTab(area, widget) : null;
     };
 
     // Returns an array of all widgets to the right of a widget in a tab area.
@@ -214,8 +219,7 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
       label: () => trans.__('Close All Other Tabs'),
       isEnabled: () => {
         // Ensure there are at least two widgets.
-        const iterator = shell.widgets('main');
-        return !!iterator.next() && !!iterator.next();
+        return some(shell.widgets('main'), (_, i) => i === 1);
       },
       execute: () => {
         const widget = contextMenuWidget();
@@ -223,10 +227,11 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
           return;
         }
         const { id } = widget;
-        const otherWidgets = toArray(shell.widgets('main')).filter(
-          widget => widget.id !== id
-        );
-        closeWidgets(otherWidgets);
+        for (const widget of shell.widgets('main')) {
+          if (widget.id !== id) {
+            widget.close();
+          }
+        }
       }
     });
 
@@ -280,8 +285,19 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
         }
       });
 
+      commands.addCommand(CommandIDs.toggleHeader, {
+        label: trans.__('Show Header'),
+        execute: () => {
+          if (labShell.mode === 'single-document') {
+            labShell.toggleTopInSimpleModeVisibility();
+          }
+        },
+        isToggled: () => labShell.isTopInSimpleModeVisible(),
+        isVisible: () => labShell.mode === 'single-document'
+      });
+
       commands.addCommand(CommandIDs.toggleLeftArea, {
-        label: () => trans.__('Show Left Sidebar'),
+        label: trans.__('Show Left Sidebar'),
         execute: () => {
           if (labShell.leftCollapsed) {
             labShell.expandLeft();
@@ -293,11 +309,11 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
           }
         },
         isToggled: () => !labShell.leftCollapsed,
-        isVisible: () => !labShell.isEmpty('left')
+        isEnabled: () => !labShell.isEmpty('left')
       });
 
       commands.addCommand(CommandIDs.toggleRightArea, {
-        label: () => trans.__('Show Right Sidebar'),
+        label: trans.__('Show Right Sidebar'),
         execute: () => {
           if (labShell.rightCollapsed) {
             labShell.expandRight();
@@ -309,7 +325,29 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
           }
         },
         isToggled: () => !labShell.rightCollapsed,
-        isVisible: () => !labShell.isEmpty('right')
+        isEnabled: () => !labShell.isEmpty('right')
+      });
+
+      commands.addCommand(CommandIDs.toggleSideTabBar, {
+        label: args =>
+          args.side === 'right'
+            ? trans.__('Show Right Activity Bar')
+            : trans.__('Show Left Activity Bar'),
+        execute: args => {
+          if (args.side === 'right') {
+            labShell.toggleSideTabBarVisibility('right');
+          } else {
+            labShell.toggleSideTabBarVisibility('left');
+          }
+        },
+        isToggled: args =>
+          args.side === 'right'
+            ? labShell.isSideTabBarVisible('right')
+            : labShell.isSideTabBarVisible('left'),
+        isEnabled: args =>
+          args.side === 'right'
+            ? !labShell.isEmpty('right')
+            : !labShell.isEmpty('left')
       });
 
       commands.addCommand(CommandIDs.togglePresentationMode, {
@@ -322,6 +360,13 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
       });
 
       commands.addCommand(CommandIDs.setMode, {
+        label: args =>
+          args['mode']
+            ? trans.__('Set %1 mode.', args['mode'])
+            : trans.__('Set the layout `mode`.'),
+        caption: trans.__(
+          'The layout `mode` can be "single-document" or "multiple-document".'
+        ),
         isVisible: args => {
           const mode = args['mode'] as string;
           return mode === 'single-document' || mode === 'multiple-document';
@@ -347,6 +392,45 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
           return commands.execute(CommandIDs.setMode, args);
         }
       });
+
+      commands.addCommand(CommandIDs.resetLayout, {
+        label: trans.__('Reset Default Layout'),
+        execute: () => {
+          // Turn off presentation mode
+          if (labShell.presentationMode) {
+            commands
+              .execute(CommandIDs.togglePresentationMode)
+              .catch(reason => {
+                console.error('Failed to undo presentation mode.', reason);
+              });
+          }
+          // Display top header
+          if (
+            labShell.mode === 'single-document' &&
+            !labShell.isTopInSimpleModeVisible()
+          ) {
+            commands.execute(CommandIDs.toggleHeader).catch(reason => {
+              console.error('Failed to display title header.', reason);
+            });
+          }
+          // Display side tabbar
+          (['left', 'right'] as ('left' | 'right')[]).forEach(side => {
+            if (
+              !labShell.isSideTabBarVisible(side) &&
+              !labShell.isEmpty(side)
+            ) {
+              commands
+                .execute(CommandIDs.toggleSideTabBar, { side })
+                .catch(reason => {
+                  console.error(`Failed to show ${side} activity bar.`, reason);
+                });
+            }
+          });
+
+          // Some actions are also trigger indirectly
+          // - by listening to this command execution.
+        }
+      });
     }
 
     if (palette) {
@@ -359,11 +443,21 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
         CommandIDs.closeAll,
         CommandIDs.closeOtherTabs,
         CommandIDs.closeRightTabs,
+        CommandIDs.toggleHeader,
         CommandIDs.toggleLeftArea,
         CommandIDs.toggleRightArea,
         CommandIDs.togglePresentationMode,
-        CommandIDs.toggleMode
+        CommandIDs.toggleMode,
+        CommandIDs.resetLayout
       ].forEach(command => palette.addItem({ command, category }));
+
+      ['right', 'left'].forEach(side => {
+        palette.addItem({
+          command: CommandIDs.toggleSideTabBar,
+          category,
+          args: { side }
+        });
+      });
     }
   }
 };
@@ -373,6 +467,8 @@ const mainCommands: JupyterFrontEndPlugin<void> = {
  */
 const main: JupyterFrontEndPlugin<ITreePathUpdater> = {
   id: '@jupyterlab/application-extension:main',
+  description:
+    'Initializes the application and provides the URL tree path handler.',
   requires: [
     IRouter,
     IWindowResolver,
@@ -557,6 +653,7 @@ const main: JupyterFrontEndPlugin<ITreePathUpdater> = {
  */
 const contextMenuPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:context-menu',
+  description: 'Populates the context menu.',
   autoStart: true,
   requires: [ISettingRegistry, ITranslator],
   activate: (
@@ -598,6 +695,8 @@ const contextMenuPlugin: JupyterFrontEndPlugin<void> = {
  */
 const dirty: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:dirty',
+  description:
+    'Adds safeguard dialog when closing the browser tab with unsaved modifications.',
   autoStart: true,
   requires: [ITranslator],
   activate: (app: JupyterFrontEnd, translator: ITranslator): void => {
@@ -627,14 +726,17 @@ const dirty: JupyterFrontEndPlugin<void> = {
  */
 const layout: JupyterFrontEndPlugin<ILayoutRestorer> = {
   id: '@jupyterlab/application-extension:layout',
-  requires: [IStateDB, ILabShell, ISettingRegistry, ITranslator],
+  description: 'Provides the shell layout restorer.',
+  requires: [IStateDB, ILabShell, ISettingRegistry],
+  optional: [ITranslator],
   activate: (
     app: JupyterFrontEnd,
     state: IStateDB,
     labShell: ILabShell,
     settingRegistry: ISettingRegistry,
-    translator: ITranslator
+    translator: ITranslator | null
   ) => {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     const first = app.started;
     const registry = app.commands;
 
@@ -645,23 +747,62 @@ const layout: JupyterFrontEndPlugin<ILayoutRestorer> = {
       registry,
       mode
     });
+    settingRegistry
+      .load(shell.id)
+      .then(settings => {
+        // Add a layer of customization to support app shell mode
+        const customizedLayout = settings.composite['layout'] as any;
+
+        // Restore the layout.
+        void labShell
+          .restoreLayout(mode, restorer, {
+            'multiple-document': customizedLayout.multiple ?? {},
+            'single-document': customizedLayout.single ?? {}
+          })
+          .then(() => {
+            labShell.layoutModified.connect(() => {
+              void restorer.save(labShell.saveLayout());
+            });
 
-    // Restore the layout.
-    void labShell.restoreLayout(mode, restorer).then(saved => {
-      labShell.layoutModified.connect(() => {
-        void restorer.save(labShell.saveLayout());
+            settings.changed.connect(onSettingsChanged);
+            Private.activateSidebarSwitcher(app, labShell, settings, trans);
+          });
+      })
+      .catch(reason => {
+        console.error('Fail to load settings for the layout restorer.');
+        console.error(reason);
       });
 
-      Private.activateSidebarSwitcher(
-        app,
-        labShell,
-        settingRegistry,
-        translator,
-        saved
-      );
-    });
-
     return restorer;
+
+    async function onSettingsChanged(
+      settings: ISettingRegistry.ISettings
+    ): Promise<void> {
+      if (
+        !JSONExt.deepEqual(
+          settings.composite['layout'] as ReadonlyPartialJSONValue,
+          {
+            single: labShell.userLayout['single-document'],
+            multiple: labShell.userLayout['multiple-document']
+          } as any
+        )
+      ) {
+        const result = await showDialog({
+          title: trans.__('Information'),
+          body: trans.__(
+            'User layout customization has changed. You may need to reload JupyterLab to see the changes.'
+          ),
+          buttons: [
+            Dialog.cancelButton(),
+            Dialog.okButton({ label: trans.__('Reload') })
+          ]
+        });
+
+        if (result.button.accept) {
+          location.reload();
+        }
+      }
+    }
   },
   autoStart: true,
   provides: ILayoutRestorer
@@ -672,6 +813,7 @@ const layout: JupyterFrontEndPlugin<ILayoutRestorer> = {
  */
 const router: JupyterFrontEndPlugin<IRouter> = {
   id: '@jupyterlab/application-extension:router',
+  description: 'Provides the URL router',
   requires: [JupyterFrontEnd.IPaths],
   activate: (app: JupyterFrontEnd, paths: JupyterFrontEnd.IPaths) => {
     const { commands } = app;
@@ -699,6 +841,7 @@ const router: JupyterFrontEndPlugin<IRouter> = {
  */
 const tree: JupyterFrontEndPlugin<JupyterFrontEnd.ITreeResolver> = {
   id: '@jupyterlab/application-extension:tree-resolver',
+  description: 'Provides the tree route resolver',
   autoStart: true,
   requires: [IRouter],
   provides: JupyterFrontEnd.ITreeResolver,
@@ -763,6 +906,7 @@ const tree: JupyterFrontEndPlugin<JupyterFrontEnd.ITreeResolver> = {
  */
 const notfound: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:notfound',
+  description: 'Defines the behavior for not found URL (aka route).',
   requires: [JupyterFrontEnd.IPaths, IRouter, ITranslator],
   activate: (
     _: JupyterFrontEnd,
@@ -797,6 +941,7 @@ const notfound: JupyterFrontEndPlugin<void> = {
  */
 const busy: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:faviconbusy',
+  description: 'Handles the favicon depending on the application status.',
   requires: [ILabStatus],
   activate: async (_: JupyterFrontEnd, status: ILabStatus) => {
     status.busySignal.connect((_, isBusy) => {
@@ -831,6 +976,8 @@ const busy: JupyterFrontEndPlugin<void> = {
  */
 const shell: JupyterFrontEndPlugin<ILabShell> = {
   id: '@jupyterlab/application-extension:shell',
+  description:
+    'Provides the JupyterLab shell. It has an extended API compared to `app.shell`.',
   optional: [ISettingRegistry],
   activate: (
     app: JupyterFrontEnd,
@@ -840,17 +987,12 @@ const shell: JupyterFrontEndPlugin<ILabShell> = {
       throw new Error(`${shell.id} did not find a LabShell instance.`);
     }
     if (settingRegistry) {
-      settingRegistry
-        .load(shell.id)
-        .then(settings => {
+      void settingRegistry.load(shell.id).then(settings => {
+        (app.shell as LabShell).updateConfig(settings.composite);
+        settings.changed.connect(() => {
           (app.shell as LabShell).updateConfig(settings.composite);
-          settings.changed.connect(() => {
-            (app.shell as LabShell).updateConfig(settings.composite);
-          });
-        })
-        .catch(error => {
-          console.error('Failed to load shell settings.', error);
         });
+      });
     }
     return app.shell;
   },
@@ -863,6 +1005,7 @@ const shell: JupyterFrontEndPlugin<ILabShell> = {
  */
 const status: JupyterFrontEndPlugin<ILabStatus> = {
   id: '@jupyterlab/application-extension:status',
+  description: 'Provides the application status.',
   activate: (app: JupyterFrontEnd) => {
     if (!(app instanceof JupyterLab)) {
       throw new Error(`${status.id} must be activated in JupyterLab.`);
@@ -883,6 +1026,7 @@ const status: JupyterFrontEndPlugin<ILabStatus> = {
  */
 const info: JupyterFrontEndPlugin<JupyterLab.IInfo> = {
   id: '@jupyterlab/application-extension:info',
+  description: 'Provides the application information.',
   activate: (app: JupyterFrontEnd) => {
     if (!(app instanceof JupyterLab)) {
       throw new Error(`${info.id} must be activated in JupyterLab.`);
@@ -897,7 +1041,8 @@ const info: JupyterFrontEndPlugin<JupyterLab.IInfo> = {
  * The default JupyterLab paths dictionary provider.
  */
 const paths: JupyterFrontEndPlugin<JupyterFrontEnd.IPaths> = {
-  id: '@jupyterlab/apputils-extension:paths',
+  id: '@jupyterlab/application-extension:paths',
+  description: 'Provides the application paths.',
   activate: (app: JupyterFrontEnd): JupyterFrontEnd.IPaths => {
     if (!(app instanceof JupyterLab)) {
       throw new Error(`${paths.id} must be activated in JupyterLab.`);
@@ -913,6 +1058,7 @@ const paths: JupyterFrontEndPlugin<JupyterFrontEnd.IPaths> = {
  */
 const propertyInspector: JupyterFrontEndPlugin<IPropertyInspectorProvider> = {
   id: '@jupyterlab/application-extension:property-inspector',
+  description: 'Provides the property inspector.',
   autoStart: true,
   requires: [ILabShell, ITranslator],
   optional: [ILayoutRestorer],
@@ -924,15 +1070,22 @@ const propertyInspector: JupyterFrontEndPlugin<IPropertyInspectorProvider> = {
     restorer: ILayoutRestorer | null
   ) => {
     const trans = translator.load('jupyterlab');
-    const widget = new SideBarPropertyInspectorProvider(
-      labshell,
-      undefined,
+    const widget = new SideBarPropertyInspectorProvider({
+      shell: labshell,
       translator
-    );
+    });
     widget.title.icon = buildIcon;
     widget.title.caption = trans.__('Property Inspector');
     widget.id = 'jp-property-inspector';
-    labshell.add(widget, 'right', { rank: 100 });
+    labshell.add(widget, 'right', { rank: 100, type: 'Property Inspector' });
+
+    app.commands.addCommand(CommandIDs.showPropertyPanel, {
+      label: trans.__('Property Inspector'),
+      execute: () => {
+        labshell.activateById(widget.id);
+      }
+    });
+
     if (restorer) {
       restorer.add(widget, 'jp-property-inspector');
     }
@@ -940,8 +1093,9 @@ const propertyInspector: JupyterFrontEndPlugin<IPropertyInspectorProvider> = {
   }
 };
 
-const JupyterLogo: JupyterFrontEndPlugin<void> = {
+const jupyterLogo: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/application-extension:logo',
+  description: 'Sets the application logo.',
   autoStart: true,
   requires: [ILabShell],
   activate: (app: JupyterFrontEnd, shell: ILabShell) => {
@@ -958,6 +1112,83 @@ const JupyterLogo: JupyterFrontEndPlugin<void> = {
   }
 };
 
+/**
+ * The simple interface mode switch in the status bar.
+ */
+const modeSwitchPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/application-extension:mode-switch',
+  description: 'Adds the interface mode switch',
+  requires: [ILabShell, ITranslator],
+  optional: [IStatusBar, ISettingRegistry],
+  activate: (
+    app: JupyterFrontEnd,
+    labShell: ILabShell,
+    translator: ITranslator,
+    statusBar: IStatusBar | null,
+    settingRegistry: ISettingRegistry | null
+  ) => {
+    if (statusBar === null) {
+      // Bail early
+      return;
+    }
+    const trans = translator.load('jupyterlab');
+    const modeSwitch = new Switch();
+    modeSwitch.id = 'jp-single-document-mode';
+
+    modeSwitch.valueChanged.connect((_, args) => {
+      labShell.mode = args.newValue ? 'single-document' : 'multiple-document';
+    });
+    labShell.modeChanged.connect((_, mode) => {
+      modeSwitch.value = mode === 'single-document';
+    });
+
+    if (settingRegistry) {
+      const loadSettings = settingRegistry.load(shell.id);
+      const updateSettings = (settings: ISettingRegistry.ISettings): void => {
+        const startMode = settings.get('startMode').composite as string;
+        if (startMode) {
+          labShell.mode =
+            startMode === 'single' ? 'single-document' : 'multiple-document';
+        }
+      };
+
+      Promise.all([loadSettings, app.restored])
+        .then(([settings]) => {
+          updateSettings(settings);
+        })
+        .catch((reason: Error) => {
+          console.error(reason.message);
+        });
+    }
+
+    // Show the current file browser shortcut in its title.
+    const updateModeSwitchTitle = () => {
+      const binding = app.commands.keyBindings.find(
+        b => b.command === 'application:toggle-mode'
+      );
+      if (binding) {
+        const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
+        modeSwitch.caption = trans.__('Simple Interface (%1)', ks);
+      } else {
+        modeSwitch.caption = trans.__('Simple Interface');
+      }
+    };
+    updateModeSwitchTitle();
+    app.commands.keyBindingChanged.connect(() => {
+      updateModeSwitchTitle();
+    });
+
+    modeSwitch.label = trans.__('Simple');
+
+    statusBar.registerStatusItem(modeSwitchPlugin.id, {
+      item: modeSwitch,
+      align: 'left',
+      rank: -1
+    });
+  },
+  autoStart: true
+};
+
 /**
  * Export the plugins as default.
  */
@@ -974,16 +1205,16 @@ const plugins: JupyterFrontEndPlugin<any>[] = [
   shell,
   status,
   info,
+  modeSwitchPlugin,
   paths,
   propertyInspector,
-  JupyterLogo
+  jupyterLogo,
+  topbar
 ];
 
 export default plugins;
 
 namespace Private {
-  type SidebarOverrides = { [id: string]: 'left' | 'right' };
-
   async function displayInformation(trans: TranslationBundle): Promise<void> {
     const result = await showDialog({
       title: trans.__('Information'),
@@ -1163,46 +1394,9 @@ namespace Private {
   export function activateSidebarSwitcher(
     app: JupyterFrontEnd,
     labShell: ILabShell,
-    settingRegistry: ISettingRegistry,
-    translator: ITranslator,
-    initial: ILabShell.ILayout
+    settings: ISettingRegistry.ISettings,
+    trans: TranslationBundle
   ): void {
-    const setting = '@jupyterlab/application-extension:sidebar';
-    const trans = translator.load('jupyterlab');
-    let overrides: SidebarOverrides = {};
-    const update = (_: ILabShell, layout: ILabShell.ILayout | void) => {
-      each(labShell.widgets('left'), widget => {
-        if (overrides[widget.id] && overrides[widget.id] === 'right') {
-          labShell.add(widget, 'right');
-          if (layout && layout.rightArea?.currentWidget === widget) {
-            labShell.activateById(widget.id);
-          }
-        }
-      });
-      each(labShell.widgets('right'), widget => {
-        if (overrides[widget.id] && overrides[widget.id] === 'left') {
-          labShell.add(widget, 'left');
-          if (layout && layout.leftArea?.currentWidget === widget) {
-            labShell.activateById(widget.id);
-          }
-        }
-      });
-    };
-    // Fetch overrides from the settings system.
-    void Promise.all([settingRegistry.load(setting), app.restored]).then(
-      ([settings]) => {
-        overrides = (settings.get('overrides').composite ||
-          {}) as SidebarOverrides;
-        settings.changed.connect(settings => {
-          overrides = (settings.get('overrides').composite ||
-            {}) as SidebarOverrides;
-          update(labShell);
-        });
-        labShell.layoutModified.connect(update);
-        update(labShell, initial);
-      }
-    );
-
     // Add a command to switch a side panels's side
     app.commands.addCommand(CommandIDs.switchSidebar, {
       label: trans.__('Switch Sidebar Side'),
@@ -1219,18 +1413,46 @@ namespace Private {
         const id = contextNode.dataset['id']!;
         const leftPanel = document.getElementById('jp-left-stack');
         const node = document.getElementById(id);
-        let side: 'left' | 'right';
 
+        let newLayout: {
+          'single-document': ILabShell.IUserLayout;
+          'multiple-document': ILabShell.IUserLayout;
+        } | null = null;
+        // Move the panel to the other side.
         if (leftPanel && node && leftPanel.contains(node)) {
-          side = 'right';
+          const widget = find(labShell.widgets('left'), w => w.id === id);
+          if (widget) {
+            newLayout = labShell.move(widget, 'right');
+            labShell.activateById(widget.id);
+          }
         } else {
-          side = 'left';
+          const widget = find(labShell.widgets('right'), w => w.id === id);
+          if (widget) {
+            newLayout = labShell.move(widget, 'left');
+            labShell.activateById(widget.id);
+          }
         }
 
-        // Move the panel to the other side.
-        return settingRegistry.set(setting, 'overrides', {
-          ...overrides,
-          [id]: side
+        if (newLayout) {
+          settings
+            .set('layout', {
+              single: newLayout['single-document'],
+              multiple: newLayout['multiple-document']
+            } as any)
+            .catch(reason => {
+              console.error(
+                'Failed to save user layout customization.',
+                reason
+              );
+            });
+        }
+      }
+    });
+
+    app.commands.commandExecuted.connect((registry, executed) => {
+      if (executed.id === CommandIDs.resetLayout) {
+        settings.remove('layout').catch(reason => {
+          console.error('Failed to remove user layout customization.', reason);
         });
       }
     });
diff --git a/packages/application-extension/src/topbar.ts b/packages/application-extension/src/topbar.ts
new file mode 100644
index 000000000000..747344b1383a
--- /dev/null
+++ b/packages/application-extension/src/topbar.ts
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import {
+  createToolbarFactory,
+  IToolbarWidgetRegistry,
+  setToolbar
+} from '@jupyterlab/apputils';
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { Toolbar } from '@jupyterlab/ui-components';
+
+const TOPBAR_FACTORY = 'TopBar';
+
+/**
+ * A plugin adding a toolbar to the top area.
+ */
+export const topbar: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/application-extension:top-bar',
+  description: 'Adds a toolbar to the top area (next to the main menu bar).',
+  autoStart: true,
+  requires: [ISettingRegistry, IToolbarWidgetRegistry],
+  optional: [ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    settingRegistry: ISettingRegistry,
+    toolbarRegistry: IToolbarWidgetRegistry,
+    translator: ITranslator | null
+  ) => {
+    const toolbar = new Toolbar();
+    toolbar.id = 'jp-top-bar';
+
+    // Set toolbar
+    setToolbar(
+      toolbar,
+      createToolbarFactory(
+        toolbarRegistry,
+        settingRegistry,
+        TOPBAR_FACTORY,
+        topbar.id,
+        translator ?? nullTranslator
+      ),
+      toolbar
+    );
+
+    app.shell.add(toolbar, 'top', { rank: 900 });
+  }
+};
diff --git a/packages/application-extension/style/base.css b/packages/application-extension/style/base.css
index 88e5cf5aeb6b..18025e52c5c0 100644
--- a/packages/application-extension/style/base.css
+++ b/packages/application-extension/style/base.css
@@ -7,3 +7,13 @@
 #jp-MainLogo {
   width: calc(var(--jp-private-sidebar-tab-width) + var(--jp-border-width));
 }
+
+#jp-top-bar {
+  --jp-private-toolbar-height: var(--jp-private-menu-panel-height);
+
+  flex: 1 1 auto;
+  padding: 0 2px;
+  box-shadow: none;
+  border: none;
+  align-items: center;
+}
diff --git a/packages/application-extension/style/index.css b/packages/application-extension/style/index.css
index 581688a62f01..425e9863d8f0 100644
--- a/packages/application-extension/style/index.css
+++ b/packages/application-extension/style/index.css
@@ -6,7 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/property-inspector/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/application-extension/style/index.js b/packages/application-extension/style/index.js
index cffba0811a3e..97ecd8c5d3ba 100644
--- a/packages/application-extension/style/index.js
+++ b/packages/application-extension/style/index.js
@@ -6,6 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/property-inspector/style/index.js';
 
diff --git a/packages/application-extension/tsconfig.json b/packages/application-extension/tsconfig.json
index 2ec4a9fcab98..973e930c7b12 100644
--- a/packages/application-extension/tsconfig.json
+++ b/packages/application-extension/tsconfig.json
@@ -24,6 +24,9 @@
     {
       "path": "../statedb"
     },
+    {
+      "path": "../statusbar"
+    },
     {
       "path": "../translation"
     },
diff --git a/packages/application/.vscode/launch.json b/packages/application/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/application/.vscode/launch.json
+++ b/packages/application/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/application/babel.config.js b/packages/application/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/application/babel.config.js
+++ b/packages/application/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/application/jest.config.js b/packages/application/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/application/jest.config.js
+++ b/packages/application/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/application/package.json b/packages/application/package.json
index eac2a3099afc..2a5af9fdc709 100644
--- a/packages/application/package.json
+++ b/packages/application/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/application",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Application",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,40 +37,39 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.12.0",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/application": "^1.31.4",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/application": "^2.2.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/application/src/frontend.ts b/packages/application/src/frontend.ts
index 24cba6eeb8b4..77dc5fb9209b 100644
--- a/packages/application/src/frontend.ts
+++ b/packages/application/src/frontend.ts
@@ -5,7 +5,6 @@ import { CommandLinker } from '@jupyterlab/apputils';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import { ServiceManager } from '@jupyterlab/services';
 import { ContextMenuSvg } from '@jupyterlab/ui-components';
-import { IIterator } from '@lumino/algorithm';
 import { Application, IPlugin } from '@lumino/application';
 import { Token } from '@lumino/coreutils';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -109,7 +108,7 @@ export abstract class JupyterFrontEnd<
   /**
    * The service manager used by the application.
    */
-  readonly serviceManager: ServiceManager;
+  readonly serviceManager: ServiceManager.IManager;
 
   /**
    * The application form factor, e.g., `desktop` or `mobile`.
@@ -231,7 +230,7 @@ export namespace JupyterFrontEnd {
     /**
      * The service manager used by the application.
      */
-    serviceManager?: ServiceManager;
+    serviceManager?: ServiceManager.IManager;
 
     /**
      * Promise that resolves when state is first restored, returning layout
@@ -282,7 +281,7 @@ export namespace JupyterFrontEnd {
      *
      * @param area - Optional regions in the shell whose widgets are iterated.
      */
-    widgets(area?: string): IIterator<Widget>;
+    widgets(area?: string): IterableIterator<Widget>;
   }
 
   /**
@@ -304,7 +303,12 @@ export namespace JupyterFrontEnd {
   /**
    * The application paths dictionary token.
    */
-  export const IPaths = new Token<IPaths>('@jupyterlab/application:IPaths');
+  export const IPaths = new Token<IPaths>(
+    '@jupyterlab/application:IPaths',
+    `A service providing information about various
+  URLs and server paths for the current application. Use this service if you want to
+  assemble URLs to use the JupyterLab REST API.`
+  );
 
   /**
    * An interface for URL and directory paths used by a Jupyter front-end.
@@ -365,7 +369,8 @@ export namespace JupyterFrontEnd {
    * dependency if it is possible to make it an optional dependency.
    */
   export const ITreeResolver = new Token<ITreeResolver>(
-    '@jupyterlab/application:ITreeResolver'
+    '@jupyterlab/application:ITreeResolver',
+    'A service to resolve the tree path.'
   );
 
   /**
diff --git a/packages/application/src/index.ts b/packages/application/src/index.ts
index 2845e063e098..8bf1a81c904f 100644
--- a/packages/application/src/index.ts
+++ b/packages/application/src/index.ts
@@ -20,6 +20,6 @@ export {
 } from './mimerenderers';
 export { Router } from './router';
 export { ILabShell, LabShell } from './shell';
-export { ILabStatus } from './status';
 export * from './tokens';
 export { ITreePathUpdater } from './treepathupdater';
+export * from './utils';
diff --git a/packages/application/src/lab.ts b/packages/application/src/lab.ts
index a5405ab3d4aa..1b15a6f9bf8e 100644
--- a/packages/application/src/lab.ts
+++ b/packages/application/src/lab.ts
@@ -5,6 +5,7 @@ import { Notification, NotificationManager } from '@jupyterlab/apputils';
 import { PageConfig } from '@jupyterlab/coreutils';
 import { Base64ModelFactory } from '@jupyterlab/docregistry';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
+import { ServiceManager } from '@jupyterlab/services';
 import { Token } from '@lumino/coreutils';
 import { JupyterFrontEnd, JupyterFrontEndPlugin } from './frontend';
 import { createRendermimePlugins } from './mimerenderers';
@@ -19,7 +20,17 @@ export class JupyterLab extends JupyterFrontEnd<ILabShell> {
    * Construct a new JupyterLab object.
    */
   constructor(options: JupyterLab.IOptions = { shell: new LabShell() }) {
-    super({ ...options, shell: options.shell || new LabShell() });
+    super({
+      ...options,
+      shell: options.shell || new LabShell(),
+      serviceManager:
+        options.serviceManager ||
+        new ServiceManager({
+          standby: () => {
+            return !this._info.isConnected || 'when-hidden';
+          }
+        })
+    });
     this.restored = this.shell.restored
       .then(() => undefined)
       .catch(() => undefined);
@@ -171,7 +182,7 @@ export class JupyterLab extends JupyterFrontEnd<ILabShell> {
     });
   }
 
-  private _info: JupyterLab.IInfo;
+  private _info: JupyterLab.IInfo = JupyterLab.defaultInfo;
   private _paths: JupyterFrontEnd.IPaths;
 }
 
@@ -183,7 +194,7 @@ export namespace JupyterLab {
    * The options used to initialize a JupyterLab object.
    */
   export interface IOptions
-    extends JupyterFrontEnd.IOptions<LabShell>,
+    extends Partial<JupyterFrontEnd.IOptions<ILabShell>>,
       Partial<IInfo> {
     paths?: Partial<JupyterFrontEnd.IPaths>;
   }
@@ -191,7 +202,10 @@ export namespace JupyterLab {
   /**
    * The layout restorer token.
    */
-  export const IInfo = new Token<IInfo>('@jupyterlab/application:IInfo');
+  export const IInfo = new Token<IInfo>(
+    '@jupyterlab/application:IInfo',
+    'A service providing metadata about the current application, including disabled extensions and whether dev mode is enabled.'
+  );
 
   /**
    * The information about a JupyterLab application.
@@ -221,6 +235,18 @@ export namespace JupyterLab {
      * Whether files are cached on the server.
      */
     readonly filesCached: boolean;
+
+    /**
+     * Every periodic network polling should be paused while this is set
+     * to `false`. Extensions should use this value to decide whether to proceed
+     * with the polling.
+     * The extensions may also set this value to `false` if there is no need to
+     * fetch anything from the server backend basing on some conditions
+     * (e.g. when an error message dialog is displayed).
+     * At the same time, the extensions are responsible for setting this value
+     * back to `true`.
+     */
+    isConnected: boolean;
   }
 
   /**
@@ -231,7 +257,8 @@ export namespace JupyterLab {
     deferred: { patterns: [], matches: [] },
     disabled: { patterns: [], matches: [] },
     mimeExtensions: [],
-    filesCached: PageConfig.getOption('cacheFiles').toLowerCase() === 'true'
+    filesCached: PageConfig.getOption('cacheFiles').toLowerCase() === 'true',
+    isConnected: true
   };
 
   /**
diff --git a/packages/application/src/layoutrestorer.ts b/packages/application/src/layoutrestorer.ts
index 4f7100b6f53b..5449f8bc47e4 100644
--- a/packages/application/src/layoutrestorer.ts
+++ b/packages/application/src/layoutrestorer.ts
@@ -23,7 +23,8 @@ import { ILabShell } from './shell';
  * The layout restorer token.
  */
 export const ILayoutRestorer = new Token<ILayoutRestorer>(
-  '@jupyterlab/application:ILayoutRestorer'
+  '@jupyterlab/application:ILayoutRestorer',
+  'A service providing application layout restoration functionality. Use this to have your activities restored across page loads.'
 );
 
 /**
@@ -176,6 +177,7 @@ export class LayoutRestorer implements ILayoutRestorer {
       downArea: null,
       leftArea: null,
       rightArea: null,
+      topArea: null,
       relativeSizes: null
     };
     const layout = this._connector.fetch(KEY);
@@ -187,13 +189,8 @@ export class LayoutRestorer implements ILayoutRestorer {
         return blank;
       }
 
-      const {
-        main,
-        down,
-        left,
-        right,
-        relativeSizes
-      } = data as Private.ILayout;
+      const { main, down, left, right, relativeSizes, top } =
+        data as Private.ILayout;
 
       // If any data exists, then this is not a fresh session.
       const fresh = false;
@@ -221,7 +218,8 @@ export class LayoutRestorer implements ILayoutRestorer {
         downArea,
         leftArea,
         rightArea,
-        relativeSizes: relativeSizes || null
+        relativeSizes: relativeSizes || null,
+        topArea: (top as any) ?? null
       };
     } catch (error) {
       return blank;
@@ -325,7 +323,7 @@ export class LayoutRestorer implements ILayoutRestorer {
   /**
    * Save the layout state for the application.
    */
-  save(data: ILabShell.ILayout): Promise<void> {
+  save(layout: ILabShell.ILayout): Promise<void> {
     // If there are promises that are unresolved, bail.
     if (!this._promisesDone) {
       const warning = 'save() was called prematurely.';
@@ -334,14 +332,16 @@ export class LayoutRestorer implements ILayoutRestorer {
     }
 
     const dehydrated: Private.ILayout = {};
+
     // Save the cached main area layout if restoration is deferred.
     dehydrated.main = this.isDeferred
       ? this._deferredMainArea
-      : this._dehydrateMainArea(data.mainArea);
-    dehydrated.down = this._dehydrateDownArea(data.downArea);
-    dehydrated.left = this._dehydrateSideArea(data.leftArea);
-    dehydrated.right = this._dehydrateSideArea(data.rightArea);
-    dehydrated.relativeSizes = data.relativeSizes;
+      : this._dehydrateMainArea(layout.mainArea);
+    dehydrated.down = this._dehydrateDownArea(layout.downArea);
+    dehydrated.left = this._dehydrateSideArea(layout.leftArea);
+    dehydrated.right = this._dehydrateSideArea(layout.rightArea);
+    dehydrated.relativeSizes = layout.relativeSizes;
+    dehydrated.top = { ...layout.topArea };
 
     return this._connector.save(KEY, dehydrated);
   }
@@ -359,7 +359,7 @@ export class LayoutRestorer implements ILayoutRestorer {
   }
 
   /**
-   * Reydrate a serialized main area description object.
+   * Rehydrate a serialized main area description object.
    *
    * #### Notes
    * This function consumes data that can become corrupted, so it uses type
@@ -405,7 +405,7 @@ export class LayoutRestorer implements ILayoutRestorer {
   }
 
   /**
-   * Reydrate a serialized side area description object.
+   * Rehydrate a serialized side area description object.
    *
    * #### Notes
    * This function consumes data that can become corrupted, so it uses type
@@ -446,7 +446,10 @@ export class LayoutRestorer implements ILayoutRestorer {
     if (!area) {
       return null;
     }
-    const dehydrated: Private.ISideArea = { collapsed: area.collapsed };
+    const dehydrated: Private.ISideArea = {
+      collapsed: area.collapsed,
+      visible: area.visible
+    };
     if (area.currentWidget) {
       const current = Private.nameProperty.get(area.currentWidget);
       if (current) {
@@ -462,7 +465,7 @@ export class LayoutRestorer implements ILayoutRestorer {
   }
 
   /**
-   * Reydrate a serialized side area description object.
+   * Rehydrate a serialized side area description object.
    *
    * #### Notes
    * This function consumes data that can become corrupted, so it uses type
@@ -472,7 +475,12 @@ export class LayoutRestorer implements ILayoutRestorer {
     area?: Private.ISideArea | null
   ): ILabShell.ISideArea {
     if (!area) {
-      return { collapsed: true, currentWidget: null, widgets: null };
+      return {
+        collapsed: true,
+        currentWidget: null,
+        visible: true,
+        widgets: null
+      };
     }
     const internal = this._widgets;
     const collapsed = area.collapsed ?? false;
@@ -490,7 +498,8 @@ export class LayoutRestorer implements ILayoutRestorer {
     return {
       collapsed,
       currentWidget: currentWidget!,
-      widgets: widgets as Widget[] | null
+      widgets: widgets as Widget[] | null,
+      visible: area.visible ?? true
     };
   }
 
@@ -586,6 +595,11 @@ namespace Private {
      * The relatives sizes of the areas of the user interface.
      */
     relativeSizes?: number[] | null;
+
+    /**
+     * The restorable description of the top area in the user interface.
+     */
+    top?: ITopArea | null;
   }
 
   /**
@@ -622,6 +636,11 @@ namespace Private {
      */
     current?: string | null;
 
+    /**
+     * A flag denoting whether the side tab bar is visible.
+     */
+    visible?: boolean | null;
+
     /**
      * The collection of widgets held by the sidebar.
      */
@@ -648,6 +667,16 @@ namespace Private {
     currentIndex: number;
   }
 
+  /**
+   * The restorable description of the top area in the user interface.
+   */
+  export interface ITopArea extends PartialJSONObject {
+    /**
+     * Top area visibility in simple mode.
+     */
+    readonly simpleVisibility?: boolean;
+  }
+
   /**
    * The restorable description of a split area in the user interface.
    */
diff --git a/packages/application/src/mimerenderers.ts b/packages/application/src/mimerenderers.ts
index 2d1fc10f996d..7a6c40755986 100644
--- a/packages/application/src/mimerenderers.ts
+++ b/packages/application/src/mimerenderers.ts
@@ -25,7 +25,8 @@ export interface IMimeDocumentTracker extends IWidgetTracker<MimeDocument> {}
  * The mime document tracker token.
  */
 export const IMimeDocumentTracker = new Token<IMimeDocumentTracker>(
-  '@jupyterlab/application:IMimeDocumentTracker'
+  '@jupyterlab/application:IMimeDocumentTracker',
+  'A widget tracker for documents rendered using a mime renderer extension. Use this if you want to list and interact with documents rendered by such extensions.'
 );
 
 /**
@@ -58,6 +59,7 @@ export function createRendermimePlugins(
   // and exposing the mime document widget tracker.
   plugins.push({
     id: '@jupyterlab/application:mimedocument',
+    description: 'Provides a mime document widget tracker.',
     optional: [ILayoutRestorer],
     provides: IMimeDocumentTracker,
     autoStart: true,
@@ -89,6 +91,7 @@ export function createRendermimePlugin(
 ): JupyterFrontEndPlugin<void> {
   return {
     id: item.id,
+    description: item.description,
     requires: [IRenderMimeRegistry, ITranslator],
     autoStart: true,
     activate: (
diff --git a/packages/application/src/shell.ts b/packages/application/src/shell.ts
index 4a1749e31182..3874d6e829ad 100644
--- a/packages/application/src/shell.ts
+++ b/packages/application/src/shell.ts
@@ -7,10 +7,12 @@ import {
   classes,
   DockPanelSvg,
   LabIcon,
+  TabBarSvg,
+  tabIcon,
   TabPanelSvg
 } from '@jupyterlab/ui-components';
-import { ArrayExt, find, IIterator, iter, toArray } from '@lumino/algorithm';
-import { PromiseDelegate, Token } from '@lumino/coreutils';
+import { ArrayExt, find, map } from '@lumino/algorithm';
+import { JSONExt, PromiseDelegate, Token } from '@lumino/coreutils';
 import { IMessageHandler, Message, MessageLoop } from '@lumino/messaging';
 import { Debouncer } from '@lumino/polling';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -62,7 +64,8 @@ const ACTIVITY_CLASS = 'jp-Activity';
  * The JupyterLab application shell token.
  */
 export const ILabShell = new Token<ILabShell>(
-  '@jupyterlab/application:ILabShell'
+  '@jupyterlab/application:ILabShell',
+  'A service for interacting with the JupyterLab shell. The top-level ``application`` object also has a reference to the shell, but it has a restricted interface in order to be agnostic to different shell implementations on the application. Use this to get more detailed information about currently active widgets and layout state.'
 );
 
 /**
@@ -97,9 +100,12 @@ export namespace ILabShell {
    */
   export type IOptions = {
     /**
-     * The application language translator.
+     * Whether the layout should wait to be restored before adding widgets or not.
+     *
+     * #### Notes
+     * It defaults to true
      */
-    translator?: ITranslator;
+    waitForRestore?: boolean;
   };
 
   /**
@@ -121,6 +127,37 @@ export namespace ILabShell {
     hiddenMode: 'display' | 'scale' | 'contentVisibility';
   }
 
+  /**
+   * Widget position
+   */
+  export interface IWidgetPosition {
+    /**
+     * Widget area
+     */
+    area?: Area;
+    /**
+     * Widget opening options
+     */
+    options?: DocumentRegistry.IOpenOptions;
+  }
+
+  /**
+   * To-be-added widget and associated position
+   */
+  export interface IDelayedWidget extends IWidgetPosition {
+    widget: Widget;
+  }
+
+  /**
+   * Mapping of widget type identifier and their user customized position
+   */
+  export interface IUserLayout {
+    /**
+     * Widget customized position
+     */
+    [k: string]: IWidgetPosition;
+  }
+
   /**
    * The args for the current path change signal.
    */
@@ -171,6 +208,11 @@ export namespace ILabShell {
      */
     readonly rightArea: ISideArea | null;
 
+    /**
+     * The top area of the user interface.
+     */
+    readonly topArea: ITopArea | null;
+
     /**
      * The relatives sizes of the areas of the user interface.
      */
@@ -225,6 +267,11 @@ export namespace ILabShell {
      */
     readonly currentWidget: Widget | null;
 
+    /**
+     * A flag denoting whether the side tab bar is visible.
+     */
+    readonly visible: boolean;
+
     /**
      * The collection of widgets held by the sidebar.
      */
@@ -232,6 +279,16 @@ export namespace ILabShell {
   }
 }
 
+/**
+ * The restorable description of the top area in the user interface.
+ */
+export interface ITopArea {
+  /**
+   * Top area visibility in simple mode.
+   */
+  readonly simpleVisibility: boolean;
+}
+
 /**
  * The application shell for JupyterLab.
  */
@@ -243,27 +300,37 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     super();
     this.addClass(APPLICATION_SHELL_CLASS);
     this.id = 'main';
+    if (options?.waitForRestore === false) {
+      this._userLayout = { 'multiple-document': {}, 'single-document': {} };
+    }
+
+    // Skip Links
+    const skipLinkWidget = (this._skipLinkWidget = new Private.SkipLinkWidget(
+      this
+    ));
+    this._skipLinkWidget.show();
+    //  Wrap the skip widget to customize its position and size
+    const skipLinkWrapper = new Panel();
+    skipLinkWrapper.addClass('jp-skiplink-wrapper');
+    skipLinkWrapper.addWidget(skipLinkWidget);
 
-    const trans = ((options && options.translator) || nullTranslator).load(
-      'jupyterlab'
-    );
     const headerPanel = (this._headerPanel = new BoxPanel());
     const menuHandler = (this._menuHandler = new Private.PanelHandler());
     menuHandler.panel.node.setAttribute('role', 'navigation');
-    menuHandler.panel.node.setAttribute('aria-label', trans.__('main'));
     const topHandler = (this._topHandler = new Private.PanelHandler());
     topHandler.panel.node.setAttribute('role', 'banner');
     const bottomPanel = (this._bottomPanel = new BoxPanel());
     bottomPanel.node.setAttribute('role', 'contentinfo');
     const hboxPanel = new BoxPanel();
-    const vsplitPanel = (this._vsplitPanel = new Private.RestorableSplitPanel());
+    const vsplitPanel = (this._vsplitPanel =
+      new Private.RestorableSplitPanel());
     const dockPanel = (this._dockPanel = new DockPanelSvg({
-      hiddenMode: Widget.HiddenMode.Display,
-      translator: options?.translator
+      hiddenMode: Widget.HiddenMode.Display
     }));
     MessageLoop.installMessageHook(dockPanel, this._dockChildHook);
 
-    const hsplitPanel = (this._hsplitPanel = new Private.RestorableSplitPanel());
+    const hsplitPanel = (this._hsplitPanel =
+      new Private.RestorableSplitPanel());
     const downPanel = (this._downPanel = new TabPanelSvg({
       tabsMovable: true
     }));
@@ -283,27 +350,11 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
 
     leftHandler.sideBar.addClass(SIDEBAR_CLASS);
     leftHandler.sideBar.addClass('jp-mod-left');
-    leftHandler.sideBar.node.setAttribute(
-      'aria-label',
-      trans.__('main sidebar')
-    );
-    leftHandler.sideBar.contentNode.setAttribute(
-      'aria-label',
-      trans.__('main sidebar')
-    );
     leftHandler.sideBar.node.setAttribute('role', 'complementary');
     leftHandler.stackedPanel.id = 'jp-left-stack';
 
     rightHandler.sideBar.addClass(SIDEBAR_CLASS);
     rightHandler.sideBar.addClass('jp-mod-right');
-    rightHandler.sideBar.node.setAttribute(
-      'aria-label',
-      trans.__('alternate sidebar')
-    );
-    rightHandler.sideBar.contentNode.setAttribute(
-      'aria-label',
-      trans.__('alternate sidebar')
-    );
     rightHandler.sideBar.node.setAttribute('role', 'complementary');
     rightHandler.stackedPanel.id = 'jp-right-stack';
 
@@ -356,6 +407,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     BoxLayout.setStretch(hboxPanel, 1);
     BoxLayout.setStretch(bottomPanel, 0);
 
+    rootLayout.addWidget(skipLinkWrapper);
     rootLayout.addWidget(headerPanel);
     rootLayout.addWidget(topHandler.panel);
     rootLayout.addWidget(hboxPanel);
@@ -387,14 +439,8 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     );
 
     // Catch current changed events on the side handlers.
-    this._leftHandler.sideBar.currentChanged.connect(
-      this._onLayoutModified,
-      this
-    );
-    this._rightHandler.sideBar.currentChanged.connect(
-      this._onLayoutModified,
-      this
-    );
+    this._leftHandler.updated.connect(this._onLayoutModified, this);
+    this._rightHandler.updated.connect(this._onLayoutModified, this);
 
     // Catch update events on the horizontal split panel
     this._hsplitPanel.updated.connect(this._onLayoutModified, this);
@@ -407,16 +453,10 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       this._topHandler.addWidget(this._menuHandler.panel, 100);
       titleHandler.hide();
     } else {
-      rootLayout.insertWidget(2, this._menuHandler.panel);
+      rootLayout.insertWidget(3, this._menuHandler.panel);
     }
 
-    // Skip Links
-    const skipLinkWidget = (this._skipLinkWidget = new Private.SkipLinkWidget(
-      this
-    ));
-
-    this.add(skipLinkWidget, 'top', { rank: 0 });
-    this._skipLinkWidget.show();
+    this.translator = nullTranslator;
 
     // Wire up signals to update the title panel of the simple interface mode to
     // follow the title of this.currentWidget
@@ -427,16 +467,23 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       // Stop watching the title of the previously current widget
       if (oldValue) {
         oldValue.title.changed.disconnect(this._updateTitlePanelTitle, this);
+
+        if (oldValue instanceof DocumentWidget) {
+          oldValue.context.pathChanged.disconnect(
+            this._updateCurrentPath,
+            this
+          );
+        }
       }
 
       // Start watching the title of the new current widget
       if (newValue) {
         newValue.title.changed.connect(this._updateTitlePanelTitle, this);
         this._updateTitlePanelTitle();
-      }
 
-      if (newValue && newValue instanceof DocumentWidget) {
-        newValue.context.pathChanged.connect(this._updateCurrentPath, this);
+        if (newValue instanceof DocumentWidget) {
+          newValue.context.pathChanged.connect(this._updateCurrentPath, this);
+        }
       }
       this._updateCurrentPath();
     });
@@ -456,6 +503,23 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     return this._tracker.activeWidget;
   }
 
+  /**
+   * Whether the add buttons for each main area tab bar are enabled.
+   */
+  get addButtonEnabled(): boolean {
+    return this._dockPanel.addButtonEnabled;
+  }
+  set addButtonEnabled(value: boolean) {
+    this._dockPanel.addButtonEnabled = value;
+  }
+
+  /**
+   * A signal emitted when the add button on a main area tab bar is clicked.
+   */
+  get addRequested(): ISignal<DockPanel, TabBar<Widget>> {
+    return this._dockPanel.addRequested;
+  }
+
   /**
    * A signal emitted when main area's current focus changes.
    */
@@ -464,10 +528,11 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
   }
 
   /**
-   * A signal emitted when the shell/dock panel change modes (single/multiple document).
+   * Current document path.
    */
-  get modeChanged(): ISignal<this, DockPanel.Mode> {
-    return this._modeChanged;
+  // FIXME deprecation `undefined` is to ensure backward compatibility in 4.x
+  get currentPath(): string | null | undefined {
+    return this._currentPath;
   }
 
   /**
@@ -514,11 +579,6 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
   get presentationMode(): boolean {
     return this.hasClass('jp-mod-presentationMode');
   }
-
-  /**
-   * Enable/disable presentation mode (`jp-mod-presentationMode` CSS class) with
-   * a boolean.
-   */
   set presentationMode(value: boolean) {
     this.toggleClass('jp-mod-presentationMode', value);
   }
@@ -549,13 +609,16 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       }
 
       // Adjust menu and title
-      (this.layout as BoxLayout).insertWidget(2, this._menuHandler.panel);
+      (this.layout as BoxLayout).insertWidget(3, this._menuHandler.panel);
       this._titleHandler.show();
       this._updateTitlePanelTitle();
+      if (this._topHandlerHiddenByUser) {
+        this._topHandler.panel.hide();
+      }
     } else {
       // Cache a reference to every widget currently in the dock panel before
       // changing its mode.
-      const widgets = toArray(dock.widgets());
+      const widgets = Array.from(dock.widgets());
       dock.mode = mode;
 
       // Restore cached layout if possible.
@@ -610,7 +673,6 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
 
       // Adjust menu and title
       this.add(this._menuHandler.panel, 'top', { rank: 100 });
-      // this._topHandler.addWidget(this._menuHandler.panel, 100)
       this._titleHandler.hide();
     }
 
@@ -622,6 +684,13 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     this._modeChanged.emit(mode);
   }
 
+  /**
+   * A signal emitted when the shell/dock panel change modes (single/multiple document).
+   */
+  get modeChanged(): ISignal<this, DockPanel.Mode> {
+    return this._modeChanged;
+  }
+
   /**
    * Promise that resolves when state is first restored, returning layout
    * description.
@@ -630,6 +699,47 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     return this._restored.promise;
   }
 
+  get translator(): ITranslator {
+    return this._translator ?? nullTranslator;
+  }
+  set translator(value: ITranslator) {
+    if (value !== this._translator) {
+      this._translator = value;
+
+      // Set translator for tab bars
+      TabBarSvg.translator = value;
+
+      const trans = value.load('jupyterlab');
+      this._menuHandler.panel.node.setAttribute('aria-label', trans.__('main'));
+      this._leftHandler.sideBar.node.setAttribute(
+        'aria-label',
+        trans.__('main sidebar')
+      );
+      this._leftHandler.sideBar.contentNode.setAttribute(
+        'aria-label',
+        trans.__('main sidebar')
+      );
+      this._rightHandler.sideBar.node.setAttribute(
+        'aria-label',
+        trans.__('alternate sidebar')
+      );
+      this._rightHandler.sideBar.contentNode.setAttribute(
+        'aria-label',
+        trans.__('alternate sidebar')
+      );
+    }
+  }
+
+  /**
+   * User customized shell layout.
+   */
+  get userLayout(): {
+    'single-document': ILabShell.IUserLayout;
+    'multiple-document': ILabShell.IUserLayout;
+  } {
+    return JSONExt.deepCopy(this._userLayout as any);
+  }
+
   /**
    * Activate a widget in its area.
    */
@@ -660,7 +770,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
-  /*
+  /**
    * Activate the next Tab in the active TabBar.
    */
   activateNextTab(): void {
@@ -693,25 +803,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
-  /*
-   * Whether the add buttons for each main area tab bar are enabled.
-   */
-  get addButtonEnabled(): boolean {
-    return this._dockPanel.addButtonEnabled;
-  }
-
-  set addButtonEnabled(value: boolean) {
-    this._dockPanel.addButtonEnabled = value;
-  }
-
-  /*
-   * A signal emitted when the add button on a main area tab bar is clicked.
-   */
-  get addRequested(): ISignal<DockPanel, TabBar<Widget>> {
-    return this._dockPanel.addRequested;
-  }
-
-  /*
+  /**
    * Activate the previous Tab in the active TabBar.
    */
   activatePreviousTab(): void {
@@ -745,7 +837,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
-  /*
+  /**
    * Activate the next TabBar.
    */
   activateNextTabBar(): void {
@@ -757,7 +849,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
-  /*
+  /**
    * Activate the next TabBar.
    */
   activatePreviousTabBar(): void {
@@ -769,11 +861,46 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
+  /**
+   * Add a widget to the JupyterLab shell
+   *
+   * @param widget Widget
+   * @param area Area
+   * @param options Options
+   */
   add(
     widget: Widget,
     area: ILabShell.Area = 'main',
     options?: DocumentRegistry.IOpenOptions
   ): void {
+    if (!this._userLayout) {
+      this._delayedWidget.push({ widget, area, options });
+      return;
+    }
+
+    let userPosition: ILabShell.IWidgetPosition | undefined;
+    if (options?.type && this._userLayout[this.mode][options.type]) {
+      userPosition = this._userLayout[this.mode][options.type];
+      this._idTypeMap.set(widget.id, options.type);
+    } else {
+      userPosition = this._userLayout[this.mode][widget.id];
+    }
+    if (options?.type) {
+      this._idTypeMap.set(widget.id, options.type);
+      widget.disposed.connect(() => {
+        this._idTypeMap.delete(widget.id);
+      });
+    }
+
+    area = userPosition?.area ?? area;
+    options =
+      options || userPosition?.options
+        ? {
+            ...options,
+            ...userPosition?.options
+          }
+        : undefined;
+
     switch (area || 'main') {
       case 'bottom':
         return this._addToBottomArea(widget, options);
@@ -796,6 +923,43 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
     }
   }
 
+  /**
+   * Move a widget type to a new area.
+   *
+   * The type is determined from the `widget.id` and fallback to `widget.id`.
+   *
+   * #### Notes
+   * If `mode` is undefined, both mode are updated.
+   * The new layout is now persisted.
+   *
+   * @param widget Widget to move
+   * @param area New area
+   * @param mode Mode to change
+   * @returns The new user layout
+   */
+  move(
+    widget: Widget,
+    area: ILabShell.Area,
+    mode?: DockPanel.Mode
+  ): {
+    'single-document': ILabShell.IUserLayout;
+    'multiple-document': ILabShell.IUserLayout;
+  } {
+    const type = this._idTypeMap.get(widget.id) ?? widget.id;
+    for (const m of ['single-document', 'multiple-document'].filter(
+      c => !mode || c === mode
+    )) {
+      this._userLayout[m as DockPanel.Mode][type] = {
+        ...this._userLayout[m as DockPanel.Mode][type],
+        area
+      };
+    }
+
+    this.add(widget, area);
+
+    return this._userLayout;
+  }
+
   /**
    * Collapse the left area.
    */
@@ -851,14 +1015,38 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
    * Close all widgets in the main and down area.
    */
   closeAll(): void {
-    // Make a copy of all the widget in the dock panel (using `toArray()`)
+    // Make a copy of all the widget in the dock panel (using `Array.from()`)
     // before removing them because removing them while iterating through them
     // modifies the underlying data of the iterator.
-    toArray(this._dockPanel.widgets()).forEach(widget => widget.close());
+    Array.from(this._dockPanel.widgets()).forEach(widget => widget.close());
 
     this._downPanel.stackedPanel.widgets.forEach(widget => widget.close());
   }
 
+  /**
+   * Whether an side tab bar is visible or not.
+   *
+   * @param side Sidebar of interest
+   * @returns Side tab bar visibility
+   */
+  isSideTabBarVisible(side: 'left' | 'right'): boolean {
+    switch (side) {
+      case 'left':
+        return this._leftHandler.isVisible;
+      case 'right':
+        return this._rightHandler.isVisible;
+    }
+  }
+
+  /**
+   * Whether the top bar in simple mode is visible or not.
+   *
+   * @returns Top bar visibility
+   */
+  isTopInSimpleModeVisible(): boolean {
+    return !this._topHandlerHiddenByUser;
+  }
+
   /**
    * True if the given area is empty.
    */
@@ -886,19 +1074,35 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
   }
 
   /**
-   * Restore the layout state for the application shell.
+   * Restore the layout state and configuration for the application shell.
+   *
+   * #### Notes
+   * This should only be called once.
    */
   async restoreLayout(
     mode: DockPanel.Mode,
-    layoutRestorer: LayoutRestorer
-  ): Promise<ILabShell.ILayout> {
+    layoutRestorer: LayoutRestorer,
+    configuration: {
+      [m: string]: ILabShell.IUserLayout;
+    } = {}
+  ): Promise<void> {
+    // Set the configuration and add widgets added before the shell was ready.
+    this._userLayout = {
+      'single-document': configuration['single-document'] ?? {},
+      'multiple-document': configuration['multiple-document'] ?? {}
+    };
+    this._delayedWidget.forEach(({ widget, area, options }) => {
+      this.add(widget, area, options);
+    });
+    this._delayedWidget.length = 0;
     this._layoutRestorer = layoutRestorer;
 
     // Get the layout from the restorer
     const layout = await layoutRestorer.fetch();
 
     // Reset the layout
-    const { mainArea, downArea, leftArea, rightArea, relativeSizes } = layout;
+    const { mainArea, downArea, leftArea, rightArea, topArea, relativeSizes } =
+      layout;
 
     // Rehydrate the main area.
     if (mainArea) {
@@ -920,6 +1124,13 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       }
     }
 
+    if (topArea?.simpleVisibility !== undefined) {
+      this._topHandlerHiddenByUser = !topArea.simpleVisibility;
+      if (this.mode === 'single-document') {
+        this._topHandler.panel.setHidden(this._topHandlerHiddenByUser);
+      }
+    }
+
     // Rehydrate the down area
     if (downArea) {
       const { currentWidget, widgets, size } = downArea;
@@ -1000,8 +1211,6 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       MessageLoop.flush();
       this._restored.resolve(layout);
     }
-
-    return layout;
   }
 
   /**
@@ -1020,15 +1229,58 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       },
       downArea: {
         currentWidget: this._downPanel.currentWidget,
-        widgets: toArray(this._downPanel.stackedPanel.widgets),
+        widgets: Array.from(this._downPanel.stackedPanel.widgets),
         size: this._vsplitPanel.relativeSizes()[1]
       },
       leftArea: this._leftHandler.dehydrate(),
       rightArea: this._rightHandler.dehydrate(),
+      topArea: { simpleVisibility: !this._topHandlerHiddenByUser },
       relativeSizes: this._hsplitPanel.relativeSizes()
     };
     return layout;
   }
+
+  /**
+   * Toggle top header visibility in simple mode
+   *
+   * Note: Does nothing in multi-document mode
+   */
+  toggleTopInSimpleModeVisibility(): void {
+    if (this.mode === 'single-document') {
+      if (this._topHandler.panel.isVisible) {
+        this._topHandlerHiddenByUser = true;
+        this._topHandler.panel.hide();
+      } else {
+        this._topHandlerHiddenByUser = false;
+        this._topHandler.panel.show();
+
+        this._updateTitlePanelTitle();
+      }
+      this._onLayoutModified();
+    }
+  }
+
+  /**
+   * Toggle side tab bar visibility
+   *
+   * @param side Sidebar of interest
+   */
+  toggleSideTabBarVisibility(side: 'right' | 'left'): void {
+    if (side === 'right') {
+      if (this._rightHandler.isVisible) {
+        this._rightHandler.hide();
+      } else {
+        this._rightHandler.show();
+      }
+    } else {
+      if (this._leftHandler.isVisible) {
+        this._leftHandler.hide();
+      } else {
+        this._leftHandler.show();
+      }
+    }
+  }
+
   /**
    * Update the shell configuration.
    *
@@ -1053,14 +1305,14 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
   /**
    * Returns the widgets for an application area.
    */
-  widgets(area?: ILabShell.Area): IIterator<Widget> {
+  widgets(area?: ILabShell.Area): IterableIterator<Widget> {
     switch (area ?? 'main') {
       case 'main':
         return this._dockPanel.widgets();
       case 'left':
-        return iter(this._leftHandler.sideBar.titles.map(t => t.owner));
+        return map(this._leftHandler.sideBar.titles, t => t.owner);
       case 'right':
-        return iter(this._rightHandler.sideBar.titles.map(t => t.owner));
+        return map(this._rightHandler.sideBar.titles, t => t.owner);
       case 'header':
         return this._headerPanel.children();
       case 'top':
@@ -1345,7 +1597,7 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
       return null;
     }
 
-    const bars = toArray(this._dockPanel.tabBars());
+    const bars = Array.from(this._dockPanel.tabBars());
     const len = bars.length;
     const index = bars.indexOf(current);
 
@@ -1477,12 +1729,20 @@ export class LabShell extends Widget implements JupyterFrontEnd.IShell {
   private _hsplitPanel: Private.RestorableSplitPanel;
   private _vsplitPanel: Private.RestorableSplitPanel;
   private _topHandler: Private.PanelHandler;
+  private _topHandlerHiddenByUser = false;
   private _menuHandler: Private.PanelHandler;
   private _skipLinkWidget: Private.SkipLinkWidget;
   private _titleHandler: Private.TitleHandler;
   private _bottomPanel: Panel;
+  private _idTypeMap = new Map<string, string>();
   private _mainOptionsCache = new Map<Widget, DocumentRegistry.IOpenOptions>();
   private _sideOptionsCache = new Map<Widget, DocumentRegistry.IOpenOptions>();
+  private _userLayout: {
+    'single-document': ILabShell.IUserLayout;
+    'multiple-document': ILabShell.IUserLayout;
+  };
+  private _delayedWidget = new Array<ILabShell.IDelayedWidget>();
+  private _translator: ITranslator;
   private _layoutRestorer: LayoutRestorer;
 }
 
@@ -1541,7 +1801,7 @@ namespace Private {
     /**
      * Get the panel managed by the handler.
      */
-    get panel() {
+    get panel(): Panel {
       return this._panel;
     }
 
@@ -1621,6 +1881,13 @@ namespace Private {
       this._stackedPanel.widgetRemoved.connect(this._onWidgetRemoved, this);
     }
 
+    /**
+     * Whether the side bar is visible
+     */
+    get isVisible(): boolean {
+      return this._sideBar.isVisible;
+    }
+
     /**
      * Get the tab bar managed by the handler.
      */
@@ -1635,6 +1902,13 @@ namespace Private {
       return this._stackedPanel;
     }
 
+    /**
+     * Signal fires when the stack panel or the sidebar changes
+     */
+    get updated(): ISignal<SideBarHandler, void> {
+      return this._updated;
+    }
+
     /**
      * Expand the sidebar.
      *
@@ -1699,9 +1973,14 @@ namespace Private {
         title.icon = title.icon.bindprops({
           stylesheet: 'sideBar'
         });
-      } else if (typeof title.icon === 'string' || !title.icon) {
+      } else if (typeof title.icon === 'string' && title.icon != '') {
         // add some classes to help with displaying css background imgs
         title.iconClass = classes(title.iconClass, 'jp-Icon', 'jp-Icon-20');
+      } else if (!title.icon && !title.label) {
+        // add a fallback icon if there is no title label nor icon
+        title.icon = tabIcon.bindprops({
+          stylesheet: 'sideBar'
+        });
       }
 
       this._refreshVisibility();
@@ -1712,9 +1991,14 @@ namespace Private {
      */
     dehydrate(): ILabShell.ISideArea {
       const collapsed = this._sideBar.currentTitle === null;
-      const widgets = toArray(this._stackedPanel.widgets);
+      const widgets = Array.from(this._stackedPanel.widgets);
       const currentWidget = widgets[this._sideBar.currentIndex];
-      return { collapsed, currentWidget, widgets };
+      return {
+        collapsed,
+        currentWidget,
+        visible: !this._isHiddenByUser,
+        widgets
+      };
     }
 
     /**
@@ -1727,6 +2011,25 @@ namespace Private {
       if (data.collapsed) {
         this.collapse();
       }
+      if (!data.visible) {
+        this.hide();
+      }
+    }
+
+    /**
+     * Hide the side bar even if it contains widgets
+     */
+    hide(): void {
+      this._isHiddenByUser = true;
+      this._refreshVisibility();
+    }
+
+    /**
+     * Show the side bar if it contains widgets
+     */
+    show(): void {
+      this._isHiddenByUser = false;
+      this._refreshVisibility();
     }
 
     /**
@@ -1763,8 +2066,11 @@ namespace Private {
      * Refresh the visibility of the side bar and stacked panel.
      */
     private _refreshVisibility(): void {
-      this._sideBar.setHidden(this._sideBar.titles.length === 0);
       this._stackedPanel.setHidden(this._sideBar.currentTitle === null);
+      this._sideBar.setHidden(
+        this._isHiddenByUser || this._sideBar.titles.length === 0
+      );
+      this._updated.emit();
     }
 
     /**
@@ -1812,10 +2118,12 @@ namespace Private {
       this._refreshVisibility();
     }
 
+    private _isHiddenByUser = false;
     private _items = new Array<Private.IRankItem>();
     private _sideBar: TabBar<Widget>;
     private _stackedPanel: StackedPanel;
     private _lastCurrent: Widget | null;
+    private _updated: Signal<SideBarHandler, void> = new Signal(this);
   }
 
   export class SkipLinkWidget extends Widget {
diff --git a/packages/application/src/status.ts b/packages/application/src/status.ts
index 631dd1cf8b3e..22cdbc017bbf 100644
--- a/packages/application/src/status.ts
+++ b/packages/application/src/status.ts
@@ -1,58 +1,10 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Token } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 import { JupyterFrontEnd } from './frontend';
-
-/* tslint:disable */
-/**
- * The application status token.
- */
-export const ILabStatus = new Token<ILabStatus>(
-  '@jupyterlab/application:ILabStatus'
-);
-/* tslint:enable */
-
-/**
- * An interface for JupyterLab-like application status functionality.
- */
-export interface ILabStatus {
-  /**
-   * A signal for when application changes its busy status.
-   */
-  readonly busySignal: ISignal<JupyterFrontEnd<any, any>, boolean>;
-
-  /**
-   * A signal for when application changes its dirty status.
-   */
-  readonly dirtySignal: ISignal<JupyterFrontEnd<any, any>, boolean>;
-
-  /**
-   * Whether the application is busy.
-   */
-  readonly isBusy: boolean;
-
-  /**
-   * Whether the application is dirty.
-   */
-  readonly isDirty: boolean;
-
-  /**
-   * Set the application state to busy.
-   *
-   * @returns A disposable used to clear the busy state for the caller.
-   */
-  setBusy(): IDisposable;
-
-  /**
-   * Set the application state to dirty.
-   *
-   * @returns A disposable used to clear the dirty state for the caller.
-   */
-  setDirty(): IDisposable;
-}
+import { ILabStatus } from './tokens';
 
 /**
  * The application status signals and flags class.
diff --git a/packages/application/src/tokens.ts b/packages/application/src/tokens.ts
index e2ce76742b2a..6c209d5550ee 100644
--- a/packages/application/src/tokens.ts
+++ b/packages/application/src/tokens.ts
@@ -7,13 +7,17 @@ import { CommandRegistry } from '@lumino/commands';
 import { ReadonlyPartialJSONObject, Token } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
+import { JupyterFrontEnd } from './frontend';
 
 /**
  * A token for which a plugin can provide to respond to connection failures
  * to the application server.
  */
 export const IConnectionLost = new Token<IConnectionLost>(
-  '@jupyterlab/apputils:IConnectionLost'
+  '@jupyterlab/application:IConnectionLost',
+  `A service for invoking the dialog shown
+  when JupyterLab has lost its connection to the server. Use this if, for some reason,
+  you want to bring up the "connection lost" dialog under new circumstances.`
 );
 
 /**
@@ -30,10 +34,62 @@ export type IConnectionLost = (
   translator?: ITranslator
 ) => Promise<void>;
 
+/**
+ * The application status token.
+ */
+export const ILabStatus = new Token<ILabStatus>(
+  '@jupyterlab/application:ILabStatus',
+  `A service for interacting with the application busy/dirty
+  status. Use this if you want to set the application "busy" favicon, or to set
+  the application "dirty" status, which asks the user for confirmation before leaving the application page.`
+);
+
+/**
+ * An interface for JupyterLab-like application status functionality.
+ */
+export interface ILabStatus {
+  /**
+   * A signal for when application changes its busy status.
+   */
+  readonly busySignal: ISignal<JupyterFrontEnd<any, any>, boolean>;
+
+  /**
+   * A signal for when application changes its dirty status.
+   */
+  readonly dirtySignal: ISignal<JupyterFrontEnd<any, any>, boolean>;
+
+  /**
+   * Whether the application is busy.
+   */
+  readonly isBusy: boolean;
+
+  /**
+   * Whether the application is dirty.
+   */
+  readonly isDirty: boolean;
+
+  /**
+   * Set the application state to busy.
+   *
+   * @returns A disposable used to clear the busy state for the caller.
+   */
+  setBusy(): IDisposable;
+
+  /**
+   * Set the application state to dirty.
+   *
+   * @returns A disposable used to clear the dirty state for the caller.
+   */
+  setDirty(): IDisposable;
+}
+
 /**
  * The URL Router token.
  */
-export const IRouter = new Token<IRouter>('@jupyterlab/application:IRouter');
+export const IRouter = new Token<IRouter>(
+  '@jupyterlab/application:IRouter',
+  'The URL router used by the application. Use this to add custom URL-routing for your extension (e.g., to invoke a command if the user navigates to a sub-path).'
+);
 
 /**
  * A static class that routes URLs within the application.
diff --git a/packages/application/src/treepathupdater.ts b/packages/application/src/treepathupdater.ts
index ae256c856109..5cf315a05b51 100644
--- a/packages/application/src/treepathupdater.ts
+++ b/packages/application/src/treepathupdater.ts
@@ -9,7 +9,8 @@ import { Token } from '@lumino/coreutils';
  * The tree path updater token.
  */
 export const ITreePathUpdater = new Token<ITreePathUpdater>(
-  '@jupyterlab/application:ITreePathUpdater'
+  '@jupyterlab/application:ITreePathUpdater',
+  'A service to update the tree path.'
 );
 
 /**
diff --git a/packages/application/src/utils.ts b/packages/application/src/utils.ts
new file mode 100644
index 000000000000..af733a6853dc
--- /dev/null
+++ b/packages/application/src/utils.ts
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { SemanticCommand } from '@jupyterlab/apputils';
+import { TranslationBundle } from '@jupyterlab/translation';
+import { CommandRegistry } from '@lumino/commands';
+import { JupyterFrontEnd } from './frontend';
+
+export interface ISemanticCommandDefault {
+  /**
+   * Default command to execute if no command is enabled
+   */
+  execute?: string;
+  /**
+   * Default command label
+   */
+  label?: string;
+  /**
+   * Default command caption
+   */
+  caption?: string;
+  /**
+   * Whether the default command is enabled.
+   */
+  isEnabled?: boolean;
+  /**
+   * Whether the default command is toggled.
+   */
+  isToggled?: boolean;
+  /**
+   * Whether the default command is visible.
+   */
+  isVisible?: boolean;
+}
+
+/**
+ * Create the command options from the given semantic commands list
+ * and the given default values.
+ *
+ * @param app Jupyter Application
+ * @param semanticCommands Single semantic command  or a list of commands
+ * @param defaultValues Default values
+ * @param trans Translation bundle
+ * @returns Command options
+ */
+export function createSemanticCommand(
+  app: JupyterFrontEnd,
+  semanticCommands: SemanticCommand | SemanticCommand[],
+  defaultValues: ISemanticCommandDefault,
+  trans: TranslationBundle
+): CommandRegistry.ICommandOptions {
+  const { commands, shell } = app;
+  const commandList = Array.isArray(semanticCommands)
+    ? semanticCommands
+    : [semanticCommands];
+
+  return {
+    label: concatenateTexts('label'),
+    caption: concatenateTexts('caption'),
+    isEnabled: () => {
+      const isEnabled = reduceAttribute('isEnabled');
+      return (
+        (isEnabled.length > 0 &&
+          !isEnabled.some(enabled => enabled === false)) ||
+        (defaultValues.isEnabled ?? false)
+      );
+    },
+    isToggled: () => {
+      const isToggled = reduceAttribute('isToggled');
+      return (
+        isToggled.some(enabled => enabled === true) ||
+        (defaultValues.isToggled ?? false)
+      );
+    },
+    isVisible: () => {
+      const isVisible = reduceAttribute('isVisible');
+      return (
+        (isVisible.length > 0 &&
+          !isVisible.some(visible => visible === false)) ||
+        (defaultValues.isVisible ?? true)
+      );
+    },
+    execute: async () => {
+      const widget = shell.currentWidget;
+      const commandIds = commandList.map(cmd =>
+        widget !== null ? cmd.getActiveCommandId(widget) : null
+      );
+      const toExecute = commandIds.filter(
+        commandId => commandId !== null && commands.isEnabled(commandId)
+      );
+
+      let result: any = null;
+      if (toExecute.length > 0) {
+        for (const commandId of toExecute) {
+          result = await commands.execute(commandId!);
+          if (typeof result === 'boolean' && result === false) {
+            // If a command returns a boolean, assume it is the execution success status
+            // So break if it is false.
+            break;
+          }
+        }
+      } else if (defaultValues.execute) {
+        result = await commands.execute(defaultValues.execute);
+      }
+      return result;
+    }
+  };
+
+  function reduceAttribute(
+    attribute: keyof CommandRegistry.ICommandOptions
+  ): any[] {
+    const widget = shell.currentWidget;
+    const commandIds = commandList.map(cmd =>
+      widget !== null ? cmd.getActiveCommandId(widget) : null
+    );
+    const attributes = commandIds
+      .filter(commandId => commandId !== null)
+      .map(commandId => commands[attribute](commandId!));
+    return attributes;
+  }
+
+  function concatenateTexts(
+    attribute: 'label' | 'caption'
+  ): string | CommandRegistry.CommandFunc<string> | undefined {
+    return () => {
+      const texts = (reduceAttribute(attribute) as string[]).map(
+        (text, textIndex) =>
+          attribute == 'caption' && textIndex > 0
+            ? text.toLocaleLowerCase()
+            : text
+      );
+
+      switch (texts.length) {
+        case 0:
+          return defaultValues[attribute] ?? '';
+        case 1:
+          return texts[0];
+        default: {
+          const hasEllipsis = texts.some(l => /…$/.test(l));
+          const main = texts
+            .slice(undefined, -1)
+            .map(l => l.replace(/…$/, ''))
+            .join(', ');
+          const end =
+            texts.slice(-1)[0].replace(/…$/, '') + (hasEllipsis ? '…' : '');
+          return trans.__('%1 and %2', main, end);
+        }
+      }
+    };
+  }
+}
diff --git a/packages/application/style/base.css b/packages/application/style/base.css
index 25daa9c913fe..7b5ed1092006 100644
--- a/packages/application/style/base.css
+++ b/packages/application/style/base.css
@@ -3,90 +3,8 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-:root {
-  --jp-private-menu-panel-height: 27px;
-}
-
-.lm-Widget.lm-mod-hidden {
-  display: none !important;
-}
-
-body {
-  font-family: var(--jp-ui-font-family);
-  background: var(--jp-layout-color3);
-  margin: 0;
-  padding: 0;
-  overflow: hidden;
-}
-
-.jp-LabShell {
-  position: absolute;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-}
-
-.jp-LabShell.jp-mod-devMode {
-  border-top: 4px solid red;
-}
-
-#jp-main-dock-panel {
-  padding: 5px;
-}
-
-#jp-main-dock-panel[data-mode='single-document'] {
-  padding: 0;
-}
-
-#jp-main-dock-panel[data-mode='single-document'] .jp-MainAreaWidget {
-  border: none;
-}
-
-#jp-top-panel {
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color0);
-  background: var(--jp-layout-color1);
-  display: flex;
-  min-height: var(--jp-private-menubar-height);
-  overflow: visible;
-}
-
-#jp-menu-panel {
-  min-height: var(--jp-private-menu-panel-height);
-  background: var(--jp-layout-color1);
-}
-
-#jp-down-stack {
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
-}
-
-.jp-LabShell[data-shell-mode='single-document'] #jp-top-panel {
-  border-bottom: none;
-}
-
-.jp-LabShell[data-shell-mode='single-document'] #jp-menu-panel {
-  padding-left: calc(
-    var(--jp-private-sidebar-tab-width) + var(--jp-border-width)
-  );
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color0);
-  /* Adjust min-height so open menus show up in the right place */
-  min-height: calc(
-    var(--jp-private-menu-panel-height) + var(--jp-border-width)
-  );
-}
-
-#jp-bottom-panel {
-  background: var(--jp-layout-color1);
-  display: flex;
-}
-
-#jp-single-document-mode {
-  margin: 0px 8px;
-  display: flex;
-  align-items: center;
-}
-
 /* Sibling imports */
+@import './core.css';
 @import './datagrid.css';
 @import './dockpanel.css';
 @import './menus.css';
diff --git a/packages/application/style/buttons.css b/packages/application/style/buttons.css
index 596e35bb6b72..4d0b08b58ef8 100644
--- a/packages/application/style/buttons.css
+++ b/packages/application/style/buttons.css
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /*-----------------------------------------------------------------------------
 | Variables
 |----------------------------------------------------------------------------*/
@@ -17,68 +22,67 @@ button {
 }
 
 button:focus-visible {
-  outline: 1px solid var(--md-blue-900);
+  outline: 1px solid var(--jp-accept-color-active, var(--jp-brand-color1));
   outline-offset: -1px;
 }
 
 button.jp-mod-styled.jp-mod-accept {
-  background: var(--md-blue-700);
+  background: var(--jp-accept-color-normal, var(--md-blue-500));
   border: 0;
   color: white;
 }
 
 button.jp-mod-styled.jp-mod-accept:hover {
-  background: var(--md-blue-800);
+  background: var(--jp-accept-color-hover, var(--md-blue-600));
 }
 
 button.jp-mod-styled.jp-mod-accept:active {
-  background: var(--md-blue-900);
+  background: var(--jp-accept-color-active, var(--md-blue-700));
 }
 
 button.jp-mod-styled.jp-mod-accept:focus-visible {
-  outline: 1px solid var(--md-blue-900);
+  outline: 1px solid var(--jp-accept-color-active, var(--jp-brand-color1));
 }
 
 button.jp-mod-styled.jp-mod-reject {
-  background: var(--md-grey-600);
+  background: var(--jp-reject-color-normal, var(--md-grey-500));
   border: 0;
   color: white;
 }
 
 button.jp-mod-styled.jp-mod-reject:hover {
-  background: var(--md-grey-700);
+  background: var(--jp-reject-color-hover, var(--md-grey-600));
 }
 
 button.jp-mod-styled.jp-mod-reject:active {
-  background: var(--md-grey-800);
+  background: var(--jp-reject-color-active, var(--md-grey-700));
 }
 
 button.jp-mod-styled.jp-mod-reject:focus-visible {
-  outline: 1px solid var(--md-grey-800);
+  outline: 1px solid var(--jp-reject-color-active, var(--md-grey-700));
 }
 
 button.jp-mod-styled.jp-mod-warn {
-  background: var(--md-red-700);
+  background: var(--jp-warn-color-normal, var(--jp-error-color1));
   border: 0;
   color: white;
 }
 
 button.jp-mod-styled.jp-mod-warn:hover {
-  background: var(--md-red-800);
+  background: var(--jp-warn-color-hover, var(--md-red-600));
 }
 
 button.jp-mod-styled.jp-mod-warn:active {
-  background: var(--md-red-900);
+  background: var(--jp-warn-color-active, var(--md-red-700));
 }
 
 button.jp-mod-styled.jp-mod-warn:focus-visible {
-  outline: 1px solid var(--md-red-900);
+  outline: 1px solid var(--jp-warn-color-active, var(--md-red-700));
 }
 
 .jp-Button-flat {
   text-decoration: none;
   padding: var(--jp-flat-button-padding);
-  color: var(--md-grey-600);
   font-weight: 500;
   background-color: transparent;
   height: var(--jp-private-running-shutdown-button-height);
@@ -87,12 +91,7 @@ button.jp-mod-styled.jp-mod-warn:focus-visible {
   border-radius: 2px;
 }
 
-.jp-Button-flat:hover {
-  background-color: var(--md-grey-700);
-}
-
 .jp-Button-flat:focus {
   border: none;
   box-shadow: none;
-  background-color: var(--md-grey-800);
 }
diff --git a/packages/application/style/core.css b/packages/application/style/core.css
new file mode 100644
index 000000000000..5172f173c1c9
--- /dev/null
+++ b/packages/application/style/core.css
@@ -0,0 +1,92 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+:root {
+  --jp-private-menu-panel-height: 27px;
+}
+
+.lm-Widget.lm-mod-hidden {
+  display: none !important;
+}
+
+body {
+  font-family: var(--jp-ui-font-family);
+  background: var(--jp-layout-color3);
+  margin: 0;
+  padding: 0;
+  overflow: hidden;
+}
+
+.jp-LabShell {
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+
+.jp-LabShell.jp-mod-devMode {
+  border-top: 4px solid red;
+}
+
+#jp-main-dock-panel {
+  padding: 5px;
+}
+
+#jp-main-dock-panel[data-mode='single-document'] {
+  padding: 0;
+}
+
+#jp-main-dock-panel[data-mode='single-document'] .jp-MainAreaWidget {
+  border: none;
+}
+
+#jp-top-panel {
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color0);
+  background: var(--jp-layout-color1);
+  display: flex;
+  min-height: var(--jp-private-menubar-height);
+  overflow: visible;
+
+  /* relax lumino strict CSS contaiment to allow painting the menu bar item
+  over the menu in order to create an illusion of partial border */
+  contain: style size !important;
+}
+
+#jp-menu-panel {
+  min-height: var(--jp-private-menu-panel-height);
+  background: var(--jp-layout-color1);
+}
+
+#jp-down-stack {
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
+}
+
+.jp-LabShell[data-shell-mode='single-document'] #jp-top-panel {
+  border-bottom: none;
+}
+
+.jp-LabShell[data-shell-mode='single-document'] #jp-menu-panel {
+  padding-left: calc(
+    var(--jp-private-sidebar-tab-width) + var(--jp-border-width)
+  );
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color0);
+
+  /* Adjust min-height so open menus show up in the right place */
+  min-height: calc(
+    var(--jp-private-menu-panel-height) + var(--jp-border-width)
+  );
+}
+
+#jp-bottom-panel {
+  background: var(--jp-layout-color1);
+  display: flex;
+}
+
+#jp-single-document-mode {
+  margin: 0 8px;
+  display: flex;
+  align-items: center;
+}
diff --git a/packages/application/style/index.css b/packages/application/style/index.css
index 93db4cd17395..02e1397e33af 100644
--- a/packages/application/style/index.css
+++ b/packages/application/style/index.css
@@ -10,5 +10,4 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/application/style/menus.css b/packages/application/style/menus.css
index e972b188349d..132e65c9ceb6 100644
--- a/packages/application/style/menus.css
+++ b/packages/application/style/menus.css
@@ -31,7 +31,7 @@
 }
 
 .lm-MenuBar-item {
-  padding: 0px 8px;
+  padding: 0 8px;
   border-left: var(--jp-border-width) solid transparent;
   border-right: var(--jp-border-width) solid transparent;
   border-top: var(--jp-border-width) solid transparent;
@@ -63,11 +63,13 @@
 .lm-MenuBar.lm-mod-active .lm-MenuBar-item.lm-mod-active {
   z-index: 10001;
   background: var(--jp-layout-color0);
+  color: var(--jp-ui-font-color0);
   border-left: var(--jp-border-width) solid var(--jp-border-color1);
   border-right: var(--jp-border-width) solid var(--jp-border-color1);
   box-shadow: var(--jp-elevation-z6);
 }
 
+/* stylelint-disable-next-line selector-max-class */
 .jp-LabShell[data-shell-mode='single-document']
   .lm-MenuBar.lm-mod-active
   .lm-MenuBar-item.lm-mod-active {
@@ -95,9 +97,9 @@
 
 .lm-Menu {
   z-index: 10000;
-  padding: 4px 0px;
+  padding: 4px 0;
   background: var(--jp-layout-color0);
-  color: var(--jp-ui-font-color1);
+  color: var(--jp-ui-font-color0);
   border: var(--jp-border-width) solid var(--jp-border-color1);
   font-size: var(--jp-ui-font-size1);
   box-shadow: var(--jp-elevation-z6);
@@ -106,7 +108,7 @@
 .lm-Menu-item {
   min-height: var(--jp-private-menu-item-height);
   max-height: var(--jp-private-menu-item-height);
-  padding: 0px;
+  padding: 0;
   line-height: var(--jp-private-menu-item-height);
 }
 
@@ -120,12 +122,12 @@
 
 .lm-Menu-itemIcon {
   width: 21px;
-  padding: 0px 2px 0px 4px;
+  padding: 0 2px 0 4px;
   margin-top: -2px;
 }
 
 .lm-Menu-itemLabel {
-  padding: 0px 32px 0px 2px;
+  padding: 0 32px 0 2px;
 }
 
 .lm-Menu-itemMnemonic {
@@ -133,12 +135,12 @@
 }
 
 .lm-Menu-itemShortcut {
-  padding: 0px;
+  padding: 0;
 }
 
 .lm-Menu-itemSubmenuIcon {
   width: 18px;
-  padding: 0px 4px 0px 0px;
+  padding: 0 4px 0 0;
 }
 
 .lm-Menu-item[data-type='separator'] > div {
diff --git a/packages/application/style/scrollbar.css b/packages/application/style/scrollbar.css
index 31aec8e54d7e..47b2c359abc4 100644
--- a/packages/application/style/scrollbar.css
+++ b/packages/application/style/scrollbar.css
@@ -27,71 +27,6 @@
   scrollbar-width: thin;
 }
 
-/*
- * Webkit scrollbar styling
- */
-
-/* use standard opaque scrollbars for most nodes */
-
-[data-jp-theme-scrollbars='true'] ::-webkit-scrollbar,
-[data-jp-theme-scrollbars='true'] ::-webkit-scrollbar-corner {
-  background: var(--jp-scrollbar-background-color);
-}
-
-[data-jp-theme-scrollbars='true'] ::-webkit-scrollbar-thumb {
-  background: rgb(var(--jp-scrollbar-thumb-color));
-  border: var(--jp-scrollbar-thumb-margin) solid transparent;
-  background-clip: content-box;
-  border-radius: var(--jp-scrollbar-thumb-radius);
-}
-
-[data-jp-theme-scrollbars='true'] ::-webkit-scrollbar-track:horizontal {
-  border-left: var(--jp-scrollbar-endpad) solid
-    var(--jp-scrollbar-background-color);
-  border-right: var(--jp-scrollbar-endpad) solid
-    var(--jp-scrollbar-background-color);
-}
-
-[data-jp-theme-scrollbars='true'] ::-webkit-scrollbar-track:vertical {
-  border-top: var(--jp-scrollbar-endpad) solid
-    var(--jp-scrollbar-background-color);
-  border-bottom: var(--jp-scrollbar-endpad) solid
-    var(--jp-scrollbar-background-color);
-}
-
-/* for code nodes, use a transparent style of scrollbar */
-
-[data-jp-theme-scrollbars='true'] .CodeMirror-hscrollbar::-webkit-scrollbar,
-[data-jp-theme-scrollbars='true'] .CodeMirror-vscrollbar::-webkit-scrollbar,
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-hscrollbar::-webkit-scrollbar-corner,
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-vscrollbar::-webkit-scrollbar-corner {
-  background-color: transparent;
-}
-
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-hscrollbar::-webkit-scrollbar-thumb,
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-vscrollbar::-webkit-scrollbar-thumb {
-  background: rgba(var(--jp-scrollbar-thumb-color), 0.5);
-  border: var(--jp-scrollbar-thumb-margin) solid transparent;
-  background-clip: content-box;
-  border-radius: var(--jp-scrollbar-thumb-radius);
-}
-
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-hscrollbar::-webkit-scrollbar-track:horizontal {
-  border-left: var(--jp-scrollbar-endpad) solid transparent;
-  border-right: var(--jp-scrollbar-endpad) solid transparent;
-}
-
-[data-jp-theme-scrollbars='true']
-  .CodeMirror-vscrollbar::-webkit-scrollbar-track:vertical {
-  border-top: var(--jp-scrollbar-endpad) solid transparent;
-  border-bottom: var(--jp-scrollbar-endpad) solid transparent;
-}
-
 /* tiny scrollbar */
 
 .jp-scrollbar-tiny::-webkit-scrollbar,
@@ -106,17 +41,17 @@
 }
 
 .jp-scrollbar-tiny::-webkit-scrollbar-track:horizontal {
-  border-left: 0px solid transparent;
-  border-right: 0px solid transparent;
+  border-left: 0 solid transparent;
+  border-right: 0 solid transparent;
 }
 
 .jp-scrollbar-tiny::-webkit-scrollbar-track:vertical {
-  border-top: 0px solid transparent;
-  border-bottom: 0px solid transparent;
+  border-top: 0 solid transparent;
+  border-bottom: 0 solid transparent;
 }
 
 /*
- * Phosphor
+ * Lumino
  */
 
 .lm-ScrollBar[data-orientation='horizontal'] {
diff --git a/packages/application/style/sidepanel.css b/packages/application/style/sidepanel.css
index d19f2d2841a6..a849f3d6c2f5 100644
--- a/packages/application/style/sidepanel.css
+++ b/packages/application/style/sidepanel.css
@@ -23,7 +23,7 @@
 
 .jp-SideBar.lm-TabBar,
 #jp-down-stack .lm-TabBar {
-  color: var(--jp-ui-font-color1);
+  color: var(--jp-ui-font-color2);
   background: var(--jp-layout-color2);
   font-size: var(--jp-ui-font-size1);
   overflow: visible;
@@ -42,23 +42,25 @@
   align-items: stretch;
   list-style-type: none;
   height: var(--jp-private-sidebar-tab-width);
-  transform-origin: 0 0 0;
 }
 
 .jp-SideBar .lm-TabBar-tab {
-  padding: 0 16px;
+  padding: 16px 0;
   border: none;
   overflow: visible;
+  flex-direction: column;
+  position: relative;
 }
 
-.jp-SideBar .lm-TabBar-tab.lm-mod-current {
-  min-height: calc(
-    var(--jp-private-sidebar-tab-width) + var(--jp-border-width)
-  );
-  max-height: calc(
-    var(--jp-private-sidebar-tab-width) + var(--jp-border-width)
-  );
-  /* transform: translateY(var(--jp-border-width)); */
+.jp-SideBar .lm-TabBar-tab.lm-mod-current::after {
+  /* Internal border override pseudo-element */
+  position: absolute;
+  content: '';
+  bottom: 0;
+  right: 0;
+  top: 0;
+  left: 0;
+  border: var(--jp-border-width) solid var(--jp-layout-color1);
 }
 
 .jp-SideBar .lm-TabBar-tab:not(.lm-mod-current),
@@ -85,106 +87,83 @@
   background: var(--jp-layout-color1);
 }
 
-/* Left */
+.jp-SideBar.lm-TabBar::after {
+  /* Internal border pseudo-element */
+  position: absolute;
+  content: '';
+  bottom: 0;
+  right: 0;
+  top: 0;
+  left: 0;
+  pointer-events: none;
+}
 
 /* Borders */
 
-.jp-SideBar.lm-TabBar.jp-mod-left {
-  border-right: var(--jp-border-width) solid var(--jp-border-color0);
-}
+/* stylelint-disable selector-max-class */
 
-.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-tab + .lm-TabBar-tab {
-  border-right: var(--jp-border-width) solid var(--jp-layout-color2);
+.jp-SideBar.lm-TabBar .lm-TabBar-tab + .lm-TabBar-tab {
+  border-top: var(--jp-border-width) solid var(--jp-layout-color2);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-left
-  .lm-TabBar-tab.lm-mod-current
-  + .lm-TabBar-tab {
-  border-right: var(--jp-border-width) solid var(--jp-border-color0);
-}
-
-.jp-SideBar.lm-TabBar.jp-mod-left
-  .lm-TabBar-tab
-  + .lm-TabBar-tab.lm-mod-current {
-  border-right: var(--jp-border-width) solid var(--jp-border-color0);
-}
-
-.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-tab.lm-mod-current:last-child {
-  border-left: var(--jp-border-width) solid var(--jp-border-color0);
+.jp-SideBar.lm-TabBar .lm-TabBar-tab.lm-mod-current + .lm-TabBar-tab {
+  border-top: var(--jp-border-width) solid var(--jp-border-color0);
 }
 
-/* Transforms */
-
-.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-content {
-  flex-direction: row-reverse;
-  transform: rotate(-90deg) translateX(-100%);
+.jp-SideBar.lm-TabBar .lm-TabBar-tab + .lm-TabBar-tab.lm-mod-current {
+  border-top: var(--jp-border-width) solid var(--jp-border-color0);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-left
-  .lm-TabBar-tab:not(.lm-mod-current)
-  .lm-TabBar-tabIcon {
-  transform: rotate(90deg);
+.jp-SideBar.lm-TabBar .lm-TabBar-tab.lm-mod-current:last-child {
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color0);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-left
-  .lm-TabBar-tab.lm-mod-current
-  .lm-TabBar-tabIcon {
-  transform: rotate(90deg)
-    translate(
-      calc(-0.5 * var(--jp-border-width)),
-      calc(-0.5 * var(--jp-border-width))
-    );
+.jp-SideBar.lm-TabBar .lm-TabBar-tabLabel {
+  writing-mode: vertical-rl;
 }
 
-/* Right */
+/* Left */
 
 /* Borders */
 
-.jp-SideBar.lm-TabBar.jp-mod-right {
-  border-left: var(--jp-border-width) solid var(--jp-border-color0);
+.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-content {
+  /* Internal border spacing */
+  margin-right: var(--jp-border-width);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-right .lm-TabBar-tab + .lm-TabBar-tab {
-  border-left: var(--jp-border-width) solid var(--jp-layout-color2);
+.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-tab.lm-mod-current::after {
+  /* Internal border override */
+  right: calc(-1 * var(--jp-border-width));
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-right
-  .lm-TabBar-tab.lm-mod-current
-  + .lm-TabBar-tab {
-  border-left: var(--jp-border-width) solid var(--jp-border-color0);
+.jp-SideBar.lm-TabBar.jp-mod-left::after {
+  /* Internal border */
+  border-right: var(--jp-border-width) solid var(--jp-border-color0);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-right
-  .lm-TabBar-tab
-  + .lm-TabBar-tab.lm-mod-current {
-  border-left: var(--jp-border-width) solid var(--jp-border-color0);
-}
+/* Transforms */
 
-.jp-SideBar.lm-TabBar.jp-mod-right .lm-TabBar-tab.lm-mod-current:last-child {
-  border-right: var(--jp-border-width) solid var(--jp-border-color0);
+.jp-SideBar.lm-TabBar.jp-mod-left .lm-TabBar-tabLabel {
+  transform: rotate(180deg);
 }
 
-/* Transforms */
+/* Right */
+
+/* Borders */
 
 .jp-SideBar.lm-TabBar.jp-mod-right .lm-TabBar-content {
-  flex-direction: row;
-  transform: rotate(90deg) translateY(-100%);
+  /* Internal border spacing */
+  margin-left: var(--jp-border-width);
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-right
-  .lm-TabBar-tab:not(.lm-mod-current)
-  .lm-TabBar-tabIcon {
-  transform: rotate(-90deg);
+.jp-SideBar.lm-TabBar.jp-mod-right .lm-TabBar-tab.lm-mod-current::after {
+  /* Internal border override */
+  left: calc(-1 * var(--jp-border-width));
 }
 
-.jp-SideBar.lm-TabBar.jp-mod-right
-  .lm-TabBar-tab.lm-mod-current
-  .lm-TabBar-tabIcon {
-  transform: rotate(-90deg)
-    translate(
-      calc(0.5 * var(--jp-border-width)),
-      calc(-0.5 * var(--jp-border-width))
-    );
+.jp-SideBar.lm-TabBar.jp-mod-right::after {
+  /* Internal border */
+  border-left: var(--jp-border-width) solid var(--jp-border-color0);
 }
 
 /* Down */
@@ -212,11 +191,14 @@
   border-right: var(--jp-border-width) solid var(--jp-border-color1);
 }
 
+/* stylelint-enable selector-max-class */
+
 /* Stack panels */
 
 #jp-left-stack > .lm-Widget,
 #jp-right-stack > .lm-Widget {
   min-width: var(--jp-sidebar-min-width);
+  background-color: var(--jp-layout-color1);
 }
 
 #jp-right-stack {
diff --git a/packages/application/style/skiplink.css b/packages/application/style/skiplink.css
index a1c0a4410690..d957e8255af1 100644
--- a/packages/application/style/skiplink.css
+++ b/packages/application/style/skiplink.css
@@ -4,6 +4,10 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+.jp-skiplink-wrapper {
+  overflow: visible;
+}
+
 .jp-skiplink {
   position: absolute;
   top: -100em;
diff --git a/packages/application/style/tabs.css b/packages/application/style/tabs.css
index ca2e43a418dc..da03446184cd 100644
--- a/packages/application/style/tabs.css
+++ b/packages/application/style/tabs.css
@@ -50,10 +50,10 @@
   min-height: calc(
     var(--jp-private-horizontal-tab-height) + 2 * var(--jp-border-width)
   );
-  min-width: 0px;
+  min-width: 0;
   margin-left: calc(-1 * var(--jp-border-width));
   line-height: var(--jp-private-horizontal-tab-height);
-  padding: 0px 8px;
+  padding: 0 8px;
   background: var(--jp-layout-color2);
   border: var(--jp-border-width) solid var(--jp-border-color1);
   border-bottom: none;
@@ -63,6 +63,7 @@
 .lm-DockPanel-tabBar .lm-TabBar-tab:hover:not(.lm-mod-current),
 .lm-TabPanel-tabBar .lm-TabBar-tab:hover:not(.lm-mod-current) {
   background: var(--jp-layout-color1);
+  color: var(--jp-ui-font-color1);
 }
 
 .lm-DockPanel-tabBar .lm-TabBar-tab:not(.lm-mod-current)::after,
@@ -83,16 +84,16 @@
 /* This is a current tab of a tab bar in the dock panel: each tab bar has 1. */
 .lm-DockPanel-tabBar .lm-TabBar-tab.lm-mod-current {
   background: var(--jp-layout-color1);
-  color: var(--jp-ui-font-color0);
+  color: var(--jp-ui-font-color1);
 }
 
 .lm-TabPanel-tabBar .lm-TabBar-tab.lm-mod-current {
   background: var(--jp-layout-color1);
-  color: var(--jp-ui-font-color0);
+  color: var(--jp-ui-font-color1);
 }
 
 /* This is the main application level current tab: only 1 exists. */
-.lm-DockPanel-tabBar .lm-TabBar-tab.jp-mod-current:before {
+.lm-DockPanel-tabBar .lm-TabBar-tab.jp-mod-current::before {
   position: absolute;
   top: calc(-1 * var(--jp-border-width) + 1px);
   left: calc(-1 * var(--jp-border-width));
@@ -104,8 +105,8 @@
 
 /* This is the left tab bar current tab: only 1 exists. */
 .lm-TabBar-tab.lm-mod-current {
-  color: var(--jp-ui-font-color0);
   background: var(--jp-layout-color1);
+  color: var(--jp-ui-font-color1);
 }
 
 .lm-DockPanel-tabBar .lm-TabBar.lm-mod-left .lm-TabBar-tab,
@@ -128,6 +129,8 @@
   margin-top: 0;
 }
 
+/* stylelint-disable selector-max-class */
+
 .lm-DockPanel-tabBar .lm-TabBar.lm-mod-left .lm-TabBar-tab.lm-mod-current,
 .lm-DockPanel-tabBar .lm-TabBar.lm-mod-right .lm-TabBar-tab.lm-mod-current {
   min-width: 80px;
@@ -148,16 +151,18 @@
   margin-right: 4px;
 }
 
+/* stylelint-enable selector-max-class */
+
 .lm-TabBar-tab.lm-mod-drag-image {
   background: var(--jp-layout-color1);
+  color: var(--jp-ui-font-color1);
   border: var(--jp-border-width) solid var(--jp-border-color1);
   border-top: var(--jp-border-width) solid var(--jp-brand-color1);
   box-shadow: var(--jp-elevation-z4);
-  color: var(--jp-ui-font-color1);
   font-size: var(--jp-ui-font-size1);
   line-height: var(--jp-private-horizontal-tab-height);
   min-height: var(--jp-private-horizontal-tab-height);
   min-width: var(--jp-private-horizontal-tab-width);
-  padding: 0px 10px;
+  padding: 0 10px;
   transform: translateX(-40%) translateY(-58%);
 }
diff --git a/packages/application/test/layoutrestorer.spec.ts b/packages/application/test/layoutrestorer.spec.ts
index f309b298d4dc..f3907e36f16a 100644
--- a/packages/application/test/layoutrestorer.spec.ts
+++ b/packages/application/test/layoutrestorer.spec.ts
@@ -40,7 +40,7 @@ describe('apputils', () => {
         });
         const promise = restorer.restored;
         ready.resolve(void 0);
-        await promise;
+        await expect(promise).resolves.not.toThrow();
       });
     });
 
@@ -56,9 +56,20 @@ describe('apputils', () => {
         const dehydrated: ILabShell.ILayout = {
           mainArea: { currentWidget, dock: null },
           downArea: { currentWidget: null, widgets: null, size: null },
-          leftArea: { collapsed: true, currentWidget: null, widgets: null },
-          rightArea: { collapsed: true, currentWidget: null, widgets: null },
-          relativeSizes: null
+          leftArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          rightArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          relativeSizes: null,
+          topArea: { simpleVisibility: true }
         };
         restorer.add(currentWidget, 'test-one');
         ready.resolve(void 0);
@@ -79,9 +90,20 @@ describe('apputils', () => {
         const dehydrated: ILabShell.ILayout = {
           mainArea: { currentWidget: null, dock: null },
           downArea: { currentWidget, widgets: null, size: null },
-          leftArea: { collapsed: true, currentWidget: null, widgets: null },
-          rightArea: { collapsed: true, currentWidget: null, widgets: null },
-          relativeSizes: null
+          leftArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          rightArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          relativeSizes: null,
+          topArea: { simpleVisibility: true }
         };
         restorer.add(currentWidget, 'test-one');
         ready.resolve(void 0);
@@ -119,10 +141,17 @@ describe('apputils', () => {
           leftArea: {
             currentWidget,
             collapsed: true,
-            widgets: [currentWidget]
+            widgets: [currentWidget],
+            visible: true
           },
-          rightArea: { collapsed: true, currentWidget: null, widgets: null },
-          relativeSizes: null
+          rightArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          relativeSizes: null,
+          topArea: { simpleVisibility: true }
         };
         restorer.add(currentWidget, 'test-one');
         ready.resolve(void 0);
@@ -175,9 +204,20 @@ describe('apputils', () => {
         const dehydrated: ILabShell.ILayout = {
           mainArea: { currentWidget: null, dock: null },
           downArea: { currentWidget: null, widgets: null, size: null },
-          leftArea: { currentWidget: null, collapsed: true, widgets: null },
-          rightArea: { collapsed: true, currentWidget: null, widgets: null },
-          relativeSizes: null
+          leftArea: {
+            currentWidget: null,
+            collapsed: true,
+            widgets: null,
+            visible: false
+          },
+          rightArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
+          },
+          relativeSizes: null,
+          topArea: { simpleVisibility: true }
         };
 
         await expect(restorer.save(dehydrated)).rejects.toBe(
@@ -201,10 +241,17 @@ describe('apputils', () => {
           leftArea: {
             currentWidget,
             collapsed: true,
-            widgets: [currentWidget]
+            widgets: [currentWidget],
+            visible: true
+          },
+          rightArea: {
+            collapsed: true,
+            currentWidget: null,
+            widgets: null,
+            visible: false
           },
-          rightArea: { collapsed: true, currentWidget: null, widgets: null },
-          relativeSizes: null
+          relativeSizes: null,
+          topArea: { simpleVisibility: true }
         };
         restorer.add(currentWidget, 'test-one');
         ready.resolve(void 0);
diff --git a/packages/application/test/router.spec.ts b/packages/application/test/router.spec.ts
index 07ade6456cb1..c308e6be437e 100644
--- a/packages/application/test/router.spec.ts
+++ b/packages/application/test/router.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Router } from '@jupyterlab/application';
-import { signalToPromise } from '@jupyterlab/testutils';
+import { signalToPromise } from '@jupyterlab/testing';
 import { CommandRegistry } from '@lumino/commands';
 import { Token } from '@lumino/coreutils';
 
@@ -107,7 +107,7 @@ describe('apputils', () => {
     });
 
     describe('#navigate()', () => {
-      it('cannot be tested since changing location is a security risk', () => {
+      it.skip('cannot be tested since changing location is a security risk', () => {
         // Router#navigate() changes window.location.href but karma tests
         // disallow changing the window location.
       });
diff --git a/packages/application/test/shell.spec.ts b/packages/application/test/shell.spec.ts
index 05156ef4f188..ccf8b7273d5b 100644
--- a/packages/application/test/shell.spec.ts
+++ b/packages/application/test/shell.spec.ts
@@ -3,8 +3,7 @@
 
 import { LabShell, LayoutRestorer } from '@jupyterlab/application';
 import { StateDB } from '@jupyterlab/statedb';
-import { framePromise } from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { framePromise } from '@jupyterlab/testing';
 import { CommandRegistry } from '@lumino/commands';
 import { Message } from '@lumino/messaging';
 import { DockPanel, Widget } from '@lumino/widgets';
@@ -28,7 +27,7 @@ describe('LabShell', () => {
   });
 
   beforeEach(() => {
-    shell = new LabShell();
+    shell = new LabShell({ waitForRestore: false });
     Widget.attach(shell, document.body);
   });
 
@@ -180,14 +179,14 @@ describe('LabShell', () => {
       widget.id = 'foo';
       shell.add(widget, 'top');
       // top-level title and menu area are added by default
-      expect(toArray(shell.widgets('top')).length).toEqual(4);
+      expect(Array.from(shell.widgets('top')).length).toEqual(3);
     });
 
     it('should be a no-op if the widget has no id', () => {
       const widget = new Widget();
       shell.add(widget, 'top');
       // top-level title and menu area are added by default
-      expect(toArray(shell.widgets('top')).length).toEqual(3);
+      expect(Array.from(shell.widgets('top')).length).toEqual(2);
     });
 
     it('should accept options', () => {
@@ -195,7 +194,7 @@ describe('LabShell', () => {
       widget.id = 'foo';
       shell.add(widget, 'top', { rank: 10 });
       // top-level title and menu area are added by default
-      expect(toArray(shell.widgets('top')).length).toEqual(4);
+      expect(Array.from(shell.widgets('top')).length).toEqual(3);
     });
 
     it('should add widgets according to their ranks', () => {
@@ -206,7 +205,7 @@ describe('LabShell', () => {
       shell.add(foo, 'top', { rank: 10001 });
       shell.add(bar, 'top', { rank: 10000 });
       expect(
-        toArray(shell.widgets('top'))
+        Array.from(shell.widgets('top'))
           .slice(-2)
           .map(v => v.id)
       ).toEqual(['bar', 'foo']);
@@ -473,29 +472,37 @@ describe('LabShell', () => {
       widget.id = 'main';
       shell.add(widget, 'main');
 
-      expect(toArray(shell.widgets('header')).map(v => v.id)).toEqual([
+      expect(Array.from(shell.widgets('header')).map(v => v.id)).toEqual([
         'header'
       ]);
       expect(
-        toArray(shell.widgets('top'))
+        Array.from(shell.widgets('top'))
           .slice(-1)
           .map(v => v.id)
       ).toEqual(['top']);
-      expect(toArray(shell.widgets('menu')).map(v => v.id)).toEqual(['menu']);
-      expect(toArray(shell.widgets('left')).map(v => v.id)).toEqual(['left']);
-      expect(toArray(shell.widgets('right')).map(v => v.id)).toEqual(['right']);
-      expect(toArray(shell.widgets('main')).map(v => v.id)).toEqual(['main']);
+      expect(Array.from(shell.widgets('menu')).map(v => v.id)).toEqual([
+        'menu'
+      ]);
+      expect(Array.from(shell.widgets('left')).map(v => v.id)).toEqual([
+        'left'
+      ]);
+      expect(Array.from(shell.widgets('right')).map(v => v.id)).toEqual([
+        'right'
+      ]);
+      expect(Array.from(shell.widgets('main')).map(v => v.id)).toEqual([
+        'main'
+      ]);
     });
 
     it('should default to main area', () => {
       const widget = new Widget();
       widget.id = 'foo';
       shell.add(widget, 'main');
-      expect(toArray(shell.widgets()).map(v => v.id)).toEqual(['foo']);
+      expect(Array.from(shell.widgets()).map(v => v.id)).toEqual(['foo']);
     });
 
     it('should throw an error when an unrecognized area is given', () => {
-      expect(() => shell.widgets('foo' as any)).toThrowError(/Invalid area/);
+      expect(() => shell.widgets('foo' as any)).toThrow(/Invalid area/);
     });
   });
 
diff --git a/packages/application/test/utils.spec.ts b/packages/application/test/utils.spec.ts
new file mode 100644
index 000000000000..819afb32f4b4
--- /dev/null
+++ b/packages/application/test/utils.spec.ts
@@ -0,0 +1,231 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  createSemanticCommand,
+  JupyterLab,
+  LabShell
+} from '@jupyterlab/application';
+import { SemanticCommand } from '@jupyterlab/apputils';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { CommandRegistry } from '@lumino/commands';
+import { Widget } from '@lumino/widgets';
+
+describe('@jupyterlab/application', () => {
+  describe('createSemanticCommand', () => {
+    let app: JupyterLab;
+    let commands: CommandRegistry;
+    let currentWidget;
+    let translator: ITranslator;
+    let semanticCmd: SemanticCommand;
+
+    beforeEach(() => {
+      commands = new CommandRegistry();
+      currentWidget = new Widget();
+      translator = nullTranslator;
+      semanticCmd = new SemanticCommand();
+      app = {
+        commands,
+        shell: {
+          currentWidget
+        } as LabShell
+      } as any as JupyterLab;
+    });
+
+    it.each([
+      [[true, false], false, true],
+      [[true, false], true, true],
+      [[true, false], undefined, true],
+      [[false, false], false, false],
+      [[false, false], undefined, false],
+      [[false, false], true, true],
+      [[true, true], false, true],
+      [[true, true], true, true],
+      [[true, true], undefined, true],
+      [[], false, false],
+      [[], undefined, false],
+      [[], true, true]
+    ])('%j & default %s has isEnabled %s', (values, defaultValue, expected) => {
+      for (let i = 0; i < values.length; i++) {
+        const id = `command-${i}`;
+        commands.addCommand(id, {
+          execute: () => null,
+          isEnabled: () => values[i]
+        });
+
+        semanticCmd.add({ id });
+      }
+
+      const contextualCommand = createSemanticCommand(
+        app,
+        semanticCmd,
+        {
+          isEnabled: defaultValue
+        },
+        translator.load('jupyterlab')
+      );
+
+      expect(contextualCommand.isEnabled?.call({})).toEqual(expected);
+    });
+
+    it.each([
+      [[true, false], false, true],
+      [[true, false], true, true],
+      [[true, false], undefined, true],
+      [[false, false], false, false],
+      [[false, false], undefined, false],
+      [[false, false], true, true],
+      [[true, true], false, true],
+      [[true, true], true, true],
+      [[true, true], undefined, true],
+      [[], false, false],
+      [[], undefined, false],
+      [[], true, true]
+    ])('%j & default %s has isToggled %s', (values, defaultValue, expected) => {
+      for (let i = 0; i < values.length; i++) {
+        const id = `command-${i}`;
+        commands.addCommand(id, {
+          execute: () => null,
+          isToggled: () => values[i]
+        });
+
+        semanticCmd.add({ id });
+      }
+
+      const contextualCommand = createSemanticCommand(
+        app,
+        semanticCmd,
+        {
+          isToggled: defaultValue
+        },
+        translator.load('jupyterlab')
+      );
+
+      expect(contextualCommand.isToggled?.call({})).toEqual(expected);
+    });
+
+    it.each([
+      [[true, false], false, true],
+      [[true, false], true, true],
+      [[true, false], undefined, true],
+      [[false, false], false, false],
+      [[false, false], undefined, true],
+      [[false, false], true, true],
+      [[true, true], false, true],
+      [[true, true], true, true],
+      [[true, true], undefined, true],
+      [[], false, false],
+      [[], undefined, true],
+      [[], true, true]
+    ])('%j & default %s has isVisible %s', (values, defaultValue, expected) => {
+      for (let i = 0; i < values.length; i++) {
+        const id = `command-${i}`;
+        commands.addCommand(id, {
+          execute: () => null,
+          isVisible: () => values[i]
+        });
+
+        semanticCmd.add({ id });
+      }
+
+      const contextualCommand = createSemanticCommand(
+        app,
+        semanticCmd,
+        {
+          isVisible: defaultValue
+        },
+        translator.load('jupyterlab')
+      );
+
+      expect(contextualCommand.isVisible?.call({})).toEqual(expected);
+    });
+
+    // Labels/captions, defaultLabel/defaultCaption, expected
+    it.each([
+      [[], undefined, ''],
+      [[], 'default', 'default'],
+      [[''], 'default', ''],
+      [['label a'], 'default', 'label a'],
+      [['label a', 'label b'], 'default', 'label a and label b'],
+      [['label a', 'label b…'], 'default', 'label a and label b…'],
+      [['label a…', 'label b'], 'default', 'label a and label b…'],
+      [['label a…', 'label b…'], 'default', 'label a and label b…'],
+      [
+        ['label a', 'label b', 'label c'],
+        'default',
+        'label a, label b and label c'
+      ],
+      [
+        ['label a…', 'label b…', 'label c'],
+        'default',
+        'label a, label b and label c…'
+      ],
+      [
+        ['label a…', 'label b', 'label c…'],
+        'default',
+        'label a, label b and label c…'
+      ],
+      [
+        ['label a…', 'label b…', 'label c…'],
+        'default',
+        'label a, label b and label c…'
+      ],
+      [
+        ['label a', 'label b…', 'label c'],
+        'default',
+        'label a, label b and label c…'
+      ],
+      [
+        ['label a', 'label b…', 'label c…'],
+        'default',
+        'label a, label b and label c…'
+      ],
+      [
+        ['label a', 'label b', 'label c…'],
+        'default',
+        'label a, label b and label c…'
+      ]
+    ])(
+      'labels/captions %j, and default %s has label/caption %s',
+      (values, defaultValue, expected) => {
+        let myCommands: SemanticCommand[] = [];
+
+        for (let i = 0; i < values.length; i++) {
+          semanticCmd = new SemanticCommand();
+          const id = `command-${i}`;
+          const label = values[i];
+          const caption = label.replace('label', 'caption');
+          commands.addCommand(id, {
+            execute: () => null,
+            label: label,
+            caption: caption
+          });
+
+          semanticCmd.add({ id });
+          myCommands.push(semanticCmd);
+        }
+
+        const semanticCommandId = 'my-semantic-command';
+        commands.addCommand(
+          semanticCommandId,
+          createSemanticCommand(
+            app,
+            myCommands,
+            {
+              label: defaultValue,
+              caption: defaultValue?.replace('label', 'caption')
+            },
+            translator.load('jupyterlab')
+          )
+        );
+
+        expect(commands.label(semanticCommandId)).toEqual(expected);
+        expect(commands.caption(semanticCommandId)).toEqual(
+          expected.replace(/label/g, 'caption')
+        );
+      }
+    );
+  });
+});
diff --git a/packages/application/tsconfig.test.json b/packages/application/tsconfig.test.json
index aae548fd1d46..2a43635e284a 100644
--- a/packages/application/tsconfig.test.json
+++ b/packages/application/tsconfig.test.json
@@ -33,34 +33,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../rendermime-interfaces"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../statedb"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/apputils-extension/package.json b/packages/apputils-extension/package.json
index 2183295da24d..8b5e5f819cb9 100644
--- a/packages/apputils-extension/package.json
+++ b/packages/apputils-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/apputils-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Application Utilities Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "style/*.css",
     "style/images/*.svg",
     "schema/*.json",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,33 +38,34 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/widgets": "^1.37.2",
-    "es6-promise": "~4.2.8",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
     "react-toastify": "^9.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/apputils-extension/schema/notification.json b/packages/apputils-extension/schema/notification.json
index aaed41180902..c2248b4271f2 100644
--- a/packages/apputils-extension/schema/notification.json
+++ b/packages/apputils-extension/schema/notification.json
@@ -27,7 +27,7 @@
   "properties": {
     "checkForUpdates": {
       "title": "Check for JupyterLab updates",
-      "description": "Whether to check for newer version of JupyterLab or not. It requires `fechNews` to be `true` to be active. If `true`, it will make a request to a website.",
+      "description": "Whether to check for newer version of JupyterLab or not. It requires `fetchNews` to be `true` to be active. If `true`, it will make a request to a website.",
       "type": "boolean",
       "default": true
     },
diff --git a/packages/apputils-extension/schema/palette.json b/packages/apputils-extension/schema/palette.json
index 106ec767b13a..17c341e30083 100644
--- a/packages/apputils-extension/schema/palette.json
+++ b/packages/apputils-extension/schema/palette.json
@@ -11,6 +11,10 @@
           {
             "command": "apputils:activate-command-palette",
             "rank": 0
+          },
+          {
+            "type": "separator",
+            "rank": 0
           }
         ]
       }
diff --git a/packages/apputils-extension/schema/sanitizer.json b/packages/apputils-extension/schema/sanitizer.json
index ebc7762939d1..39a212c0eed8 100644
--- a/packages/apputils-extension/schema/sanitizer.json
+++ b/packages/apputils-extension/schema/sanitizer.json
@@ -13,6 +13,12 @@
         "type": "string"
       },
       "default": ["http", "https", "ftp", "mailto", "tel"]
+    },
+    "autolink": {
+      "type": "boolean",
+      "title": "Autolink URL replacement",
+      "description": "Whether to replace URLs with links or not.",
+      "default": true
     }
   },
   "type": "object"
diff --git a/packages/apputils-extension/schema/utilityCommands.json b/packages/apputils-extension/schema/utilityCommands.json
new file mode 100644
index 000000000000..b6ce4f519f7e
--- /dev/null
+++ b/packages/apputils-extension/schema/utilityCommands.json
@@ -0,0 +1,35 @@
+{
+  "title": "Shortcuts Help",
+  "description": "Shortcut help settings.",
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-help",
+        "items": [
+          {
+            "type": "separator",
+            "rank": 0.1
+          },
+          {
+            "command": "apputils:display-shortcuts",
+            "rank": 0.1
+          },
+          {
+            "type": "separator",
+            "rank": 0.1
+          }
+        ]
+      }
+    ]
+  },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "apputils:display-shortcuts",
+      "keys": ["Accel Shift H"],
+      "selector": "body"
+    }
+  ],
+  "properties": {},
+  "type": "object",
+  "additionalProperties": false
+}
diff --git a/packages/apputils-extension/src/announcements.ts b/packages/apputils-extension/src/announcements.ts
index fbac5087a82a..61acaed571d3 100644
--- a/packages/apputils-extension/src/announcements.ts
+++ b/packages/apputils-extension/src/announcements.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
@@ -12,7 +17,7 @@ const COMMAND_HELP_OPEN = 'help:open';
 const NEWS_API_URL = '/lab/api/news';
 const UPDATE_API_URL = '/lab/api/update';
 const PRIVACY_URL =
-  'https://jupyterlab.readthedocs.io/en/3.6.x/privacy_policies.html';
+  'https://jupyterlab.readthedocs.io/en/stable/privacy_policies.html';
 
 /**
  * Call the announcement API
@@ -47,6 +52,8 @@ async function requestAPI<T>(
 
 export const announcements: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:announcements',
+  description:
+    'Add the announcement feature. It will fetch news on the internet and check for application updates.',
   autoStart: true,
   optional: [ISettingRegistry, ITranslator],
   activate: (
diff --git a/packages/apputils-extension/src/index.ts b/packages/apputils-extension/src/index.ts
index b6c02df4ce4f..c97276ebb8eb 100644
--- a/packages/apputils-extension/src/index.ts
+++ b/packages/apputils-extension/src/index.ts
@@ -23,13 +23,13 @@ import {
   MainAreaWidget,
   Printing,
   Sanitizer,
-  sessionContextDialogs,
+  SessionContextDialogs,
   WindowResolver
 } from '@jupyterlab/apputils';
 import { PageConfig, PathExt, URLExt } from '@jupyterlab/coreutils';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStateDB, StateDB } from '@jupyterlab/statedb';
-import { ITranslator } from '@jupyterlab/translation';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { jupyterFaviconIcon } from '@jupyterlab/ui-components';
 import { PromiseDelegate } from '@lumino/coreutils';
 import { DisposableDelegate } from '@lumino/disposable';
@@ -38,9 +38,12 @@ import { announcements } from './announcements';
 import { notificationPlugin } from './notificationplugin';
 import { Palette } from './palette';
 import { settingsPlugin } from './settingsplugin';
+import { kernelStatus, runningSessionsStatus } from './statusbarplugin';
 import { themesPaletteMenuPlugin, themesPlugin } from './themesplugins';
 import { toolbarRegistry } from './toolbarregistryplugin';
 import { workspacesPlugin } from './workspacesplugin';
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
+import { displayShortcuts } from './shortcuts';
 
 /**
  * The interval in milliseconds before recover options appear during splash.
@@ -64,6 +67,8 @@ namespace CommandIDs {
   export const runAllEnabled = 'apputils:run-all-enabled';
 
   export const toggleHeader = 'apputils:toggle-header';
+
+  export const displayShortcuts = 'apputils:display-shortcuts';
 }
 
 /**
@@ -71,6 +76,7 @@ namespace CommandIDs {
  */
 const palette: JupyterFrontEndPlugin<ICommandPalette> = {
   id: '@jupyterlab/apputils-extension:palette',
+  description: 'Provides the command palette.',
   autoStart: true,
   requires: [ITranslator],
   provides: ICommandPalette,
@@ -95,6 +101,7 @@ const palette: JupyterFrontEndPlugin<ICommandPalette> = {
  */
 const paletteRestorer: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:palette-restorer',
+  description: 'Restores the command palette.',
   autoStart: true,
   requires: [ILayoutRestorer, ITranslator],
   activate: (
@@ -111,6 +118,7 @@ const paletteRestorer: JupyterFrontEndPlugin<void> = {
  */
 const resolver: JupyterFrontEndPlugin<IWindowResolver> = {
   id: '@jupyterlab/apputils-extension:resolver',
+  description: 'Provides the window name resolver.',
   autoStart: true,
   provides: IWindowResolver,
   requires: [JupyterFrontEnd.IPaths, IRouter],
@@ -160,6 +168,7 @@ const resolver: JupyterFrontEndPlugin<IWindowResolver> = {
  */
 const splash: JupyterFrontEndPlugin<ISplashScreen> = {
   id: '@jupyterlab/apputils-extension:splash',
+  description: 'Provides the splash screen.',
   autoStart: true,
   requires: [ITranslator],
   provides: ISplashScreen,
@@ -272,6 +281,7 @@ Would you like to clear the workspace or keep waiting?`),
 
 const print: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:print',
+  description: 'Add the print capability',
   autoStart: true,
   requires: [ITranslator],
   activate: (app: JupyterFrontEnd, translator: ITranslator) => {
@@ -295,6 +305,7 @@ const print: JupyterFrontEndPlugin<void> = {
 
 export const toggleHeader: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:toggle-header',
+  description: 'Adds a command to display the main area widget content header.',
   autoStart: true,
   requires: [ITranslator],
   optional: [ICommandPalette],
@@ -310,6 +321,7 @@ export const toggleHeader: JupyterFrontEndPlugin<void> = {
       label: trans.__('Show Header Above Content'),
       isEnabled: () =>
         app.shell.currentWidget instanceof MainAreaWidget &&
+        !app.shell.currentWidget.contentHeader.isDisposed &&
         app.shell.currentWidget.contentHeader.widgets.length > 0,
       isToggled: () => {
         const widget = app.shell.currentWidget;
@@ -378,6 +390,7 @@ async function updateTabTitle(workspace: string, db: IStateDB, name: string) {
  */
 const state: JupyterFrontEndPlugin<IStateDB> = {
   id: '@jupyterlab/apputils-extension:state',
+  description: 'Provides the application state. It is stored per workspaces.',
   autoStart: true,
   provides: IStateDB,
   requires: [JupyterFrontEnd.IPaths, IRouter, ITranslator],
@@ -413,6 +426,7 @@ const state: JupyterFrontEndPlugin<IStateDB> = {
     db.changed.connect(() => updateTabTitle(workspace, db, name));
 
     commands.addCommand(CommandIDs.loadState, {
+      label: trans.__('Load state for the current workspace.'),
       execute: async (args: IRouter.ILocation) => {
         // Since the command can be executed an arbitrary number of times, make
         // sure it is safe to call multiple times.
@@ -487,6 +501,7 @@ const state: JupyterFrontEndPlugin<IStateDB> = {
     });
 
     commands.addCommand(CommandIDs.resetOnLoad, {
+      label: trans.__('Reset state when loading for the workspace.'),
       execute: (args: IRouter.ILocation) => {
         const { hash, path, search } = args;
         const query = URLExt.queryStringToObject(search || '');
@@ -549,10 +564,14 @@ const state: JupyterFrontEndPlugin<IStateDB> = {
  */
 const sessionDialogs: JupyterFrontEndPlugin<ISessionContextDialogs> = {
   id: '@jupyterlab/apputils-extension:sessionDialogs',
+  description: 'Provides the session context dialogs.',
   provides: ISessionContextDialogs,
+  optional: [ITranslator],
   autoStart: true,
-  activate: () => {
-    return sessionContextDialogs;
+  activate: async (app: JupyterFrontEnd, translator: ITranslator | null) => {
+    return new SessionContextDialogs({
+      translator: translator ?? nullTranslator
+    });
   }
 };
 
@@ -561,9 +580,15 @@ const sessionDialogs: JupyterFrontEndPlugin<ISessionContextDialogs> = {
  */
 const utilityCommands: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:utilityCommands',
+  description: 'Adds meta commands to run set of other commands.',
   requires: [ITranslator],
+  optional: [ICommandPalette],
   autoStart: true,
-  activate: (app: JupyterFrontEnd, translator: ITranslator) => {
+  activate: (
+    app: JupyterFrontEnd,
+    translator: ITranslator,
+    palette: ICommandPalette | null
+  ) => {
     const trans = translator.load('jupyterlab');
     const { commands } = app;
     commands.addCommand(CommandIDs.runFirstEnabled, {
@@ -582,13 +607,16 @@ const utilityCommands: JupyterFrontEndPlugin<void> = {
       }
     });
 
+    // Add a command for taking lists of commands and command arguments
+    // and running all the enabled commands.
     commands.addCommand(CommandIDs.runAllEnabled, {
       label: trans.__('Run All Enabled Commands Passed as Args'),
       execute: async args => {
-        const commands: string[] = args.commands as string[];
+        const commands: string[] = (args.commands as string[]) ?? [];
         const commandArgs: any = args.args;
         const argList = Array.isArray(args);
-        const errorIfNotEnabled: boolean = args.errorIfNotEnabled as boolean;
+        const errorIfNotEnabled: boolean =
+          (args.errorIfNotEnabled as boolean) ?? false;
         for (let i = 0; i < commands.length; i++) {
           const cmd = commands[i];
           const arg = argList ? commandArgs[i] : commandArgs;
@@ -600,29 +628,68 @@ const utilityCommands: JupyterFrontEndPlugin<void> = {
             }
           }
         }
+      },
+      isEnabled: args => {
+        const commands: string[] = (args.commands as string[]) ?? [];
+        const commandArgs: any = args.args;
+        const argList = Array.isArray(args);
+
+        return commands.some((cmd, idx) =>
+          app.commands.isEnabled(cmd, argList ? commandArgs[idx] : commandArgs)
+        );
       }
     });
+
+    commands.addCommand(CommandIDs.displayShortcuts, {
+      label: trans.__('Show Keyboard Shortcuts'),
+      caption: trans.__(
+        'Show relevant keyboard shortcuts for the current active widget'
+      ),
+      execute: args => {
+        const currentWidget = app.shell.currentWidget;
+        const included = currentWidget?.node.contains(document.activeElement);
+
+        if (!included && currentWidget instanceof MainAreaWidget) {
+          const currentNode = currentWidget.content.node ?? currentWidget?.node;
+          currentNode?.focus();
+        }
+        const options = { commands, trans };
+        return displayShortcuts(options);
+      }
+    });
+
+    if (palette) {
+      const category: string = trans.__('Help');
+      palette.addItem({ command: CommandIDs.displayShortcuts, category });
+    }
   }
 };
 
 /**
  * The default HTML sanitizer.
  */
-const sanitizer: JupyterFrontEndPlugin<ISanitizer> = {
-  id: '@jupyter/apputils-extension:sanitizer',
+const sanitizer: JupyterFrontEndPlugin<IRenderMime.ISanitizer> = {
+  id: '@jupyterlab/apputils-extension:sanitizer',
+  description: 'Provides the HTML sanitizer.',
   autoStart: true,
   provides: ISanitizer,
   requires: [ISettingRegistry],
-  activate: (app: JupyterFrontEnd, settings: ISettingRegistry): ISanitizer => {
+  activate: (
+    app: JupyterFrontEnd,
+    settings: ISettingRegistry
+  ): IRenderMime.ISanitizer => {
     const sanitizer = new Sanitizer();
     const loadSetting = (setting: ISettingRegistry.ISettings): void => {
-      const allowedSchemes = setting.get('allowedSchemes').composite as Array<
-        string
-      >;
+      const allowedSchemes = setting.get('allowedSchemes')
+        .composite as Array<string>;
+
+      const autolink = setting.get('autolink').composite as boolean;
 
       if (allowedSchemes) {
         sanitizer.setAllowedSchemes(allowedSchemes);
       }
+
+      sanitizer.setAutolink(autolink);
     };
 
     // Wait for the application to be restored and
@@ -649,11 +716,13 @@ const sanitizer: JupyterFrontEndPlugin<ISanitizer> = {
  */
 const plugins: JupyterFrontEndPlugin<any>[] = [
   announcements,
+  kernelStatus,
   notificationPlugin,
   palette,
   paletteRestorer,
   print,
   resolver,
+  runningSessionsStatus,
   sanitizer,
   settingsPlugin,
   state,
diff --git a/packages/apputils-extension/src/notificationplugin.tsx b/packages/apputils-extension/src/notificationplugin.tsx
index f4163329b9e8..c3d08fef5e63 100644
--- a/packages/apputils-extension/src/notificationplugin.tsx
+++ b/packages/apputils-extension/src/notificationplugin.tsx
@@ -10,10 +10,7 @@ import {
 import {
   Notification,
   NotificationManager,
-  ReactWidget,
-  ToolbarButtonComponent,
-  UseSignal,
-  VDomModel
+  ReactWidget
 } from '@jupyterlab/apputils';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import {
@@ -33,11 +30,18 @@ import {
   Button,
   closeIcon,
   deleteIcon,
-  LabIcon
+  LabIcon,
+  ToolbarButtonComponent,
+  UseSignal,
+  VDomModel
 } from '@jupyterlab/ui-components';
-import { ReadonlyJSONObject, ReadonlyJSONValue } from '@lumino/coreutils';
+import {
+  PromiseDelegate,
+  ReadonlyJSONObject,
+  ReadonlyJSONValue
+} from '@lumino/coreutils';
 import * as React from 'react';
-import * as ReactDOM from 'react-dom';
+import { createRoot } from 'react-dom/client';
 import type {
   ClearWaitingQueueParams,
   CloseButtonProps,
@@ -364,12 +368,12 @@ function NotificationStatus(props: INotificationStatusProps): JSX.Element {
  */
 export const notificationPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:notification',
+  description: 'Add the notification center and its status indicator.',
   autoStart: true,
-  requires: [IStatusBar],
-  optional: [ISettingRegistry, ITranslator],
+  optional: [IStatusBar, ISettingRegistry, ITranslator],
   activate: (
     app: JupyterFrontEnd,
-    statusBar: IStatusBar,
+    statusBar: IStatusBar | null,
     settingRegistry: ISettingRegistry | null,
     translator: ITranslator | null
   ): void => {
@@ -569,26 +573,23 @@ export const notificationPlugin: JupyterFrontEndPlugin<void> = {
         });
 
         // Dismiss all toasts when opening the notification center
-        const finalize = () => {
-          popup?.launch();
-
-          // Focus on the pop-up
-          notificationList.node.focus();
-
-          popup?.disposed.connect(() => {
-            model.listOpened = false;
-            popup = null;
-          });
-        };
-
         Private.toast()
           .then(t => {
             t.dismiss();
-            finalize();
           })
           .catch(r => {
             console.error(`Failed to dismiss all toasts:\n${r}`);
-            finalize();
+          })
+          .finally(() => {
+            popup?.launch();
+
+            // Focus on the pop-up
+            notificationList.node.focus();
+
+            popup?.disposed.connect(() => {
+              model.listOpened = false;
+              popup = null;
+            });
           });
       }
 
@@ -622,11 +623,13 @@ export const notificationPlugin: JupyterFrontEndPlugin<void> = {
 
     notificationStatus.addClass('jp-Notification-Status');
 
-    statusBar.registerStatusItem(notificationPlugin.id, {
-      item: notificationStatus,
-      align: 'right',
-      rank: -1
-    });
+    if (statusBar) {
+      statusBar.registerStatusItem(notificationPlugin.id, {
+        item: notificationStatus,
+        align: 'right',
+        rank: -1
+      });
+    }
   }
 };
 
@@ -663,16 +666,16 @@ namespace Private {
     closeIconMargin?: boolean;
   }
 
-  export function CloseButton(props: ICloseButtonProps): JSX.Element {
+  export function CloseButton(props: ICloseButtonProps) {
     return (
       <button
-        className={`bp3-button bp3-minimal jp-Button jp-mod-minimal ${TOAST_CLOSE_BUTTON_CLASS}${
+        className={`jp-Button jp-mod-minimal ${TOAST_CLOSE_BUTTON_CLASS}${
           props.closeIconMargin ? ` ${TOAST_CLOSE_BUTTON_MARGIN_CLASS}` : ''
         }`}
         title={props.title ?? ''}
         onClick={props.close}
       >
-        <props.closeIcon tag="span" />
+        <props.closeIcon className="jp-icon-hover" tag="span" />
       </button>
     );
   }
@@ -750,12 +753,20 @@ namespace Private {
     onChange(callback: (toast: ToastItem) => void): () => void;
   }
 
+  let waitForToastify: PromiseDelegate<void> | null = null;
+
   /**
    * Asynchronously load the toast container
    *
    * @returns The toast object
    */
   export async function toast(): Promise<IToast> {
+    if (waitForToastify === null) {
+      waitForToastify = new PromiseDelegate();
+    } else {
+      await waitForToastify.promise;
+    }
+
     if (toastify === null) {
       toastify = await import('react-toastify');
 
@@ -763,8 +774,9 @@ namespace Private {
         document.createElement('div')
       );
       container.id = 'react-toastify-container';
+      const root = createRoot(container);
 
-      ReactDOM.render(
+      root.render(
         <toastify.ToastContainer
           draggable={false}
           closeOnClick={false}
@@ -776,9 +788,10 @@ namespace Private {
           className="jp-toastContainer"
           transition={toastify.Slide}
           closeButton={ToastifyCloseButton}
-        />,
-        container
+        />
       );
+
+      waitForToastify.resolve();
     }
 
     return toastify.toast;
@@ -912,11 +925,11 @@ namespace Private {
     } as any;
 
     return t(
-      ({ closeToast }: { closeToast: () => void }) =>
+      ({ closeToast }: { closeToast?: () => void }) =>
         createContent(
           message,
           () => {
-            closeToast();
+            if (closeToast) closeToast();
             Notification.manager.dismiss(toastId);
           },
           actions
diff --git a/packages/apputils-extension/src/palette.ts b/packages/apputils-extension/src/palette.ts
index c40113449c66..4ebefc07c4e5 100644
--- a/packages/apputils-extension/src/palette.ts
+++ b/packages/apputils-extension/src/palette.ts
@@ -100,8 +100,7 @@ export namespace Palette {
       'aria-label',
       trans.__('Command Palette Section')
     );
-    shell.add(palette, 'left', { rank: 300 });
-
+    shell.add(palette, 'left', { rank: 300, type: 'Command Palette' });
     if (settingRegistry) {
       const loadSettings = settingRegistry.load(PALETTE_PLUGIN_ID);
       const updateSettings = (settings: ISettingRegistry.ISettings): void => {
@@ -109,7 +108,7 @@ export namespace Palette {
         if (modal && !newModal) {
           palette.parent = null;
           modalPalette.detach();
-          shell.add(palette, 'left', { rank: 300 });
+          shell.add(palette, 'left', { rank: 300, type: 'Command Palette' });
         } else if (!modal && newModal) {
           palette.parent = null;
           modalPalette.palette = palette;
diff --git a/packages/apputils-extension/src/settingconnector.ts b/packages/apputils-extension/src/settingconnector.ts
index 7c00224cb33f..ec7490d9fc62 100644
--- a/packages/apputils-extension/src/settingconnector.ts
+++ b/packages/apputils-extension/src/settingconnector.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { PageConfig } from '@jupyterlab/coreutils';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { DataConnector, IDataConnector } from '@jupyterlab/statedb';
@@ -33,16 +38,26 @@ export class SettingConnector extends DataConnector<
     return throttlers[id].invoke();
   }
 
+  async list(query: 'ids'): Promise<{ ids: string[] }>;
+  async list(
+    query: 'active' | 'all'
+  ): Promise<{ ids: string[]; values: ISettingRegistry.IPlugin[] }>;
   async list(
-    query: 'active' | 'all' = 'all'
-  ): Promise<{ ids: string[]; values: ISettingRegistry.IPlugin[] }> {
+    query: 'active' | 'all' | 'ids' = 'all'
+  ): Promise<{ ids: string[]; values?: ISettingRegistry.IPlugin[] }> {
     const { isDeferred, isDisabled } = PageConfig.Extension;
-    const { ids, values } = await this._connector.list();
+    const { ids, values } = await this._connector.list(
+      query === 'ids' ? 'ids' : undefined
+    );
 
     if (query === 'all') {
       return { ids, values };
     }
 
+    if (query === 'ids') {
+      return { ids };
+    }
+
     return {
       ids: ids.filter(id => !isDeferred(id) && !isDisabled(id)),
       values: values.filter(({ id }) => !isDeferred(id) && !isDisabled(id))
diff --git a/packages/apputils-extension/src/settingsplugin.ts b/packages/apputils-extension/src/settingsplugin.ts
index e23c333bfc8b..3ea1cd2ca57f 100644
--- a/packages/apputils-extension/src/settingsplugin.ts
+++ b/packages/apputils-extension/src/settingsplugin.ts
@@ -16,13 +16,22 @@ import { SettingConnector } from './settingconnector';
  */
 export const settingsPlugin: JupyterFrontEndPlugin<ISettingRegistry> = {
   id: '@jupyterlab/apputils-extension:settings',
+  description: 'Provides the setting registry.',
   activate: async (app: JupyterFrontEnd): Promise<ISettingRegistry> => {
     const { isDisabled } = PageConfig.Extension;
     const connector = new SettingConnector(app.serviceManager.settings);
 
+    // On startup, check if a plugin is available in the application.
+    // This helps avoid loading plugin files from other lab-based applications
+    // that have placed their schemas next to the JupyterLab schemas. Different lab-based
+    // applications might not have the same set of plugins loaded on the page.
+    // As an example this helps prevent having new toolbar items added by another application
+    // appear in JupyterLab as a side-effect when they are defined via the settings system.
     const registry = new SettingRegistry({
       connector,
-      plugins: (await connector.list('active')).values
+      plugins: (await connector.list('active')).values.filter(value =>
+        app.hasPlugin(value.id)
+      )
     });
 
     // If there are plugins that have schemas that are not in the setting
@@ -30,9 +39,9 @@ export const settingsPlugin: JupyterFrontEndPlugin<ISettingRegistry> = {
     // because otherwise, its settings will never become available in the
     // setting registry.
     void app.restored.then(async () => {
-      const plugins = await connector.list('all');
-      plugins.ids.forEach(async (id, index) => {
-        if (isDisabled(id) || id in registry.plugins) {
+      const plugins = await connector.list('ids');
+      plugins.ids.forEach(async id => {
+        if (!app.hasPlugin(id) || isDisabled(id) || id in registry.plugins) {
           return;
         }
 
@@ -40,10 +49,11 @@ export const settingsPlugin: JupyterFrontEndPlugin<ISettingRegistry> = {
           await registry.load(id);
         } catch (error) {
           console.warn(`Settings failed to load for (${id})`, error);
-          if (plugins.values[index].schema['jupyter.lab.transform']) {
+          if (!app.isPluginActivated(id)) {
             console.warn(
-              `This may happen if {autoStart: false} in (${id}) ` +
-                `or if it is one of the deferredExtensions in page config.`
+              `If 'jupyter.lab.transform=true' in the plugin schema, this ` +
+                `may happen if {autoStart: false} in (${id}) or if it is ` +
+                `one of the deferredExtensions in page config.`
             );
           }
         }
diff --git a/packages/apputils-extension/src/shortcuts.tsx b/packages/apputils-extension/src/shortcuts.tsx
new file mode 100644
index 000000000000..8dcd69805a11
--- /dev/null
+++ b/packages/apputils-extension/src/shortcuts.tsx
@@ -0,0 +1,201 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { CommandRegistry } from '@lumino/commands';
+import { Selector } from '@lumino/domutils';
+import * as React from 'react';
+import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { TranslationBundle } from '@jupyterlab/translation';
+
+/**
+ * The class name for each row of ContextShortcutTable
+ */
+const SHORTCUT_TABLE_ROW_CLASS = 'jp-ContextualShortcut-TableRow';
+/**
+ * The class name for the last row of ContextShortcutTable
+ */
+const SHORTCUT_TABLE_LAST_ROW_CLASS = 'jp-ContextualShortcut-TableLastRow';
+/**
+ * The class name for each item of ContextShortcutTable
+ */
+const SHORTCUT_TABLE_ITEM_CLASS = 'jp-ContextualShortcut-TableItem';
+/**
+ * The class name for each button-like symbol representing a key used in a shortcut in the ContextShortcutTable
+ */
+const SHORTCUT_KEY_CLASS = 'jp-ContextualShortcut-Key';
+
+/**
+ * Display shortcuts options
+ */
+export interface IOptions {
+  /**
+   * Application commands registry
+   */
+  commands: CommandRegistry;
+  /**
+   * Translation object
+   */
+  trans: TranslationBundle;
+  /**
+   * Element on which to display the keyboard shortcuts help
+   */
+  activeElement?: Element;
+}
+
+export function displayShortcuts(options: IOptions) {
+  const { commands, trans, activeElement } = options;
+  const elt = activeElement ?? document.activeElement;
+
+  /**
+   * Find the distance from the target node to the first matching node.
+   *
+   * Based on Lumino private function commands.Private.targetDistance
+   * This traverses the DOM path from `elt` to the root
+   * computes the distance from `elt` to the first node which matches
+   * the CSS selector. If no match is found, `-1` is returned.
+   *
+   * It also stops traversal if the `data-lm-suppress-shortcuts` or
+   * `data-p-suppress-shortcuts` attributes are found.
+   */
+
+  function formatKeys(keys: string[]): JSX.Element {
+    const topContainer: JSX.Element[] = [];
+    keys.forEach((key, index) => {
+      const container: JSX.Element[] = [];
+      key.split(' ').forEach((ch, chIndex) => {
+        container.push(
+          <span className={SHORTCUT_KEY_CLASS} key={`ch-${chIndex}`}>
+            <kbd>{ch}</kbd>
+          </span>,
+          <React.Fragment key={`fragment-${chIndex}`}> + </React.Fragment>
+        );
+      });
+      topContainer.push(
+        <span key={`key-${index}`}>{container.slice(0, -1)}</span>,
+        <React.Fragment key={`fragment-${index}`}> + </React.Fragment>
+      );
+    });
+    return <span>{topContainer.slice(0, -1)}</span>;
+  }
+
+  function capitalizeString(str: string) {
+    const capitalizedStr = str.charAt(0).toUpperCase() + str.slice(1);
+    return capitalizedStr;
+  }
+
+  function formatLabel(b: CommandRegistry.IKeyBinding) {
+    const label = commands.label(b.command);
+    const commandID = b.command.split(':')[1];
+    const automaticLabel = commandID.split('-');
+    let capitalizedLabel = '';
+    for (let i = 0; i < automaticLabel.length; i++) {
+      const str = capitalizeString(automaticLabel[i]);
+      capitalizedLabel = capitalizedLabel + ' ' + str;
+    }
+
+    if (label.length > 0) {
+      return label;
+    } else {
+      return capitalizedLabel;
+    }
+  }
+
+  function matchDistance(selector: string, elt: Element | null): number {
+    let targ = elt;
+    for (
+      let dist = 0;
+      targ !== null && targ !== targ.parentElement;
+      targ = targ.parentElement, ++dist
+    ) {
+      if (targ.hasAttribute('data-lm-suppress-shortcuts')) {
+        return -1;
+      }
+      if (targ.matches(selector)) {
+        return dist;
+      }
+    }
+    return -1;
+  }
+
+  // Find active keybindings for target element
+  const activeBindings = new Map<
+    string,
+    [number, CommandRegistry.IKeyBinding]
+  >();
+  for (let i = 0; i < commands.keyBindings.length; i++) {
+    const kb = commands.keyBindings[i];
+    let distance = matchDistance(kb.selector, elt);
+    if (distance < 0) {
+      continue;
+    }
+    let formatted = CommandRegistry.formatKeystroke(kb.keys);
+    if (activeBindings.has(formatted)) {
+      let oldBinding = activeBindings.get(formatted)!;
+      // if the existing binding takes precedence, ignore this binding by continuing
+      if (
+        oldBinding[0] < distance ||
+        (oldBinding[0] === distance &&
+          Selector.calculateSpecificity(oldBinding[1].selector) >
+            Selector.calculateSpecificity(kb.selector))
+      ) {
+        continue;
+      }
+    }
+    activeBindings.set(formatted, [distance, kb]);
+  }
+
+  // Group shortcuts by distance
+  let maxDistance = -1;
+  const groupedBindings = new Map<number, CommandRegistry.IKeyBinding[]>();
+  for (let [distance, binding] of activeBindings.values()) {
+    maxDistance = Math.max(distance, maxDistance);
+    if (!groupedBindings.has(distance)) {
+      groupedBindings.set(distance, []);
+    }
+    groupedBindings.get(distance)!.push(binding);
+  }
+
+  // Display shortcuts by group
+  const bindingTable: any = [];
+  for (let d = 0; d <= maxDistance; d++) {
+    if (groupedBindings.has(d)) {
+      bindingTable.push(
+        groupedBindings.get(d)!.map(b => (
+          <tr
+            className={SHORTCUT_TABLE_ROW_CLASS}
+            key={`${b.command}-${b.keys.join('-').replace(' ', '_')}`}
+          >
+            <td className={SHORTCUT_TABLE_ITEM_CLASS}>{formatLabel(b)}</td>
+            <td className={SHORTCUT_TABLE_ITEM_CLASS}>
+              {formatKeys([...b.keys])}
+            </td>
+          </tr>
+        ))
+      );
+      bindingTable.push(
+        <tr
+          className={SHORTCUT_TABLE_LAST_ROW_CLASS}
+          key={`group-${d}-last`}
+        ></tr>
+      );
+    }
+  }
+
+  const body = (
+    <table>
+      <tbody>{bindingTable}</tbody>
+    </table>
+  );
+
+  return showDialog({
+    title: trans.__('Keyboard Shortcuts'),
+    body,
+    buttons: [
+      Dialog.cancelButton({
+        label: trans.__('Close')
+      })
+    ]
+  });
+}
diff --git a/packages/apputils-extension/src/statusbarplugin.ts b/packages/apputils-extension/src/statusbarplugin.ts
new file mode 100644
index 000000000000..d082b21fc3ad
--- /dev/null
+++ b/packages/apputils-extension/src/statusbarplugin.ts
@@ -0,0 +1,147 @@
+/* -----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+import {
+  ILabShell,
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import {
+  IKernelStatusModel,
+  ISessionContext,
+  ISessionContextDialogs,
+  KernelStatus,
+  RunningSessions,
+  SessionContextDialogs
+} from '@jupyterlab/apputils';
+import { IStatusBar } from '@jupyterlab/statusbar';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { Title, Widget } from '@lumino/widgets';
+
+/**
+ * A plugin that provides a kernel status item to the status bar.
+ */
+export const kernelStatus: JupyterFrontEndPlugin<IKernelStatusModel> = {
+  id: '@jupyterlab/apputils-extension:kernel-status',
+  description: 'Provides the kernel status indicator model.',
+  autoStart: true,
+  requires: [IStatusBar],
+  provides: IKernelStatusModel,
+  optional: [ISessionContextDialogs, ITranslator, ILabShell],
+  activate: (
+    app: JupyterFrontEnd,
+    statusBar: IStatusBar,
+    sessionDialogs_: ISessionContextDialogs | null,
+    translator_: ITranslator | null,
+    labShell: ILabShell | null
+  ): IKernelStatusModel => {
+    const translator = translator_ ?? nullTranslator;
+    const sessionDialogs =
+      sessionDialogs_ ?? new SessionContextDialogs({ translator });
+    // When the status item is clicked, launch the kernel
+    // selection dialog for the current session.
+    const changeKernel = async () => {
+      if (!item.model.sessionContext) {
+        return;
+      }
+      await sessionDialogs.selectKernel(item.model.sessionContext);
+    };
+
+    // Create the status item.
+    const item = new KernelStatus({ onClick: changeKernel }, translator);
+
+    const providers = new Set<(w: Widget | null) => ISessionContext | null>();
+
+    const addSessionProvider = (
+      provider: (w: Widget | null) => ISessionContext | null
+    ): void => {
+      providers.add(provider);
+
+      if (app.shell.currentWidget) {
+        updateSession(app.shell, {
+          newValue: app.shell.currentWidget,
+          oldValue: null
+        });
+      }
+    };
+
+    function updateSession(
+      shell: JupyterFrontEnd.IShell,
+      changes: ILabShell.IChangedArgs
+    ) {
+      const { oldValue, newValue } = changes;
+
+      // Clean up after the old value if it exists,
+      // listen for changes to the title of the activity
+      if (oldValue) {
+        oldValue.title.changed.disconnect(onTitleChanged);
+      }
+
+      item.model.sessionContext =
+        [...providers]
+          .map(provider => provider(changes.newValue))
+          .filter(session => session !== null)[0] ?? null;
+
+      if (newValue && item.model.sessionContext) {
+        onTitleChanged(newValue.title);
+        newValue.title.changed.connect(onTitleChanged);
+      }
+    }
+
+    // When the title of the active widget changes, update the label
+    // of the hover text.
+    const onTitleChanged = (title: Title<Widget>) => {
+      item.model!.activityName = title.label;
+    };
+
+    if (labShell) {
+      labShell.currentChanged.connect(updateSession);
+    }
+
+    statusBar.registerStatusItem(kernelStatus.id, {
+      item,
+      align: 'left',
+      rank: 1,
+      isActive: () => item.model!.sessionContext !== null
+    });
+
+    return { addSessionProvider };
+  }
+};
+
+/*
+ * A plugin providing running terminals and sessions information
+ * to the status bar.
+ */
+export const runningSessionsStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/apputils-extension:running-sessions-status',
+  description: 'Add the running sessions and terminals status bar item.',
+  autoStart: true,
+  requires: [IStatusBar, ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    statusBar: IStatusBar,
+    translator: ITranslator
+  ) => {
+    const item = new RunningSessions({
+      onClick: () => app.shell.activateById('jp-running-sessions'),
+      serviceManager: app.serviceManager,
+      translator
+    });
+
+    item.model.sessions = Array.from(
+      app.serviceManager.sessions.running()
+    ).length;
+    item.model.terminals = Array.from(
+      app.serviceManager.terminals.running()
+    ).length;
+
+    statusBar.registerStatusItem(runningSessionsStatus.id, {
+      item,
+      align: 'left',
+      rank: 0
+    });
+  }
+};
diff --git a/packages/apputils-extension/src/themesplugins.ts b/packages/apputils-extension/src/themesplugins.ts
index 2efdc84a3b2e..0d248fc24e0d 100644
--- a/packages/apputils-extension/src/themesplugins.ts
+++ b/packages/apputils-extension/src/themesplugins.ts
@@ -18,6 +18,8 @@ import { IMainMenu } from '@jupyterlab/mainmenu';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
 
+import scrollbarStyleText from '../style/scrollbar.raw.css';
+
 namespace CommandIDs {
   export const changeTheme = 'apputils:change-theme';
 
@@ -30,11 +32,19 @@ namespace CommandIDs {
   export const decrFontSize = 'apputils:decr-font-size';
 }
 
+function createStyleSheet(text: string): HTMLStyleElement {
+  const style = document.createElement('style');
+  style.setAttribute('type', 'text/css');
+  style.appendChild(document.createTextNode(text));
+  return style;
+}
+
 /**
  * The default theme manager provider.
  */
 export const themesPlugin: JupyterFrontEndPlugin<IThemeManager> = {
   id: '@jupyterlab/apputils-extension:themes',
+  description: 'Provides the theme manager.',
   requires: [ISettingRegistry, JupyterFrontEnd.IPaths, ITranslator],
   optional: [ISplashScreen],
   activate: (
@@ -56,6 +66,7 @@ export const themesPlugin: JupyterFrontEndPlugin<IThemeManager> = {
       splash: splash ?? undefined,
       url
     });
+    let scrollbarsStyleElement: HTMLStyleElement | null = null;
 
     // Keep a synchronously set reference to the current theme,
     // since the asynchronous setting of the theme in `changeTheme`
@@ -76,6 +87,20 @@ export const themesPlugin: JupyterFrontEndPlugin<IThemeManager> = {
         document.body.dataset.jpThemeScrollbars = String(
           manager.themeScrollbars(currentTheme)
         );
+        if (manager.themeScrollbars(currentTheme)) {
+          if (!scrollbarsStyleElement) {
+            scrollbarsStyleElement = createStyleSheet(scrollbarStyleText);
+          }
+          if (!scrollbarsStyleElement.parentElement) {
+            document.body.appendChild(scrollbarsStyleElement);
+          }
+        } else {
+          if (scrollbarsStyleElement && scrollbarsStyleElement.parentElement) {
+            scrollbarsStyleElement.parentElement.removeChild(
+              scrollbarsStyleElement
+            );
+          }
+        }
       }
 
       commands.notifyCommandChanged(CommandIDs.changeTheme);
@@ -83,6 +108,9 @@ export const themesPlugin: JupyterFrontEndPlugin<IThemeManager> = {
 
     commands.addCommand(CommandIDs.changeTheme, {
       label: args => {
+        if (args.theme === undefined) {
+          return trans.__('Switch to the provided `theme`.');
+        }
         const theme = args['theme'] as string;
         const displayName = manager.getDisplayName(theme);
         return args['isPalette']
@@ -162,6 +190,7 @@ export const themesPlugin: JupyterFrontEndPlugin<IThemeManager> = {
  */
 export const themesPaletteMenuPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:themes-palette-menu',
+  description: 'Adds theme commands to the menu and the command palette.',
   requires: [IThemeManager, ITranslator],
   optional: [ICommandPalette, IMainMenu],
   activate: (
diff --git a/packages/apputils-extension/src/toolbarregistryplugin.ts b/packages/apputils-extension/src/toolbarregistryplugin.ts
index 7a47800bfcd1..014c543daa33 100644
--- a/packages/apputils-extension/src/toolbarregistryplugin.ts
+++ b/packages/apputils-extension/src/toolbarregistryplugin.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
@@ -13,6 +18,7 @@ import {
  */
 export const toolbarRegistry: JupyterFrontEndPlugin<IToolbarWidgetRegistry> = {
   id: '@jupyterlab/apputils-extension:toolbar-registry',
+  description: 'Provides toolbar items registry.',
   autoStart: true,
   provides: IToolbarWidgetRegistry,
   activate: (app: JupyterFrontEnd) => {
diff --git a/packages/apputils-extension/src/typings.d.ts b/packages/apputils-extension/src/typings.d.ts
new file mode 100644
index 000000000000..76462fe09215
--- /dev/null
+++ b/packages/apputils-extension/src/typings.d.ts
@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+declare module '*.raw.css' {
+  const script: string;
+  export default script;
+}
diff --git a/packages/apputils-extension/src/workspacesplugin.ts b/packages/apputils-extension/src/workspacesplugin.ts
index ffcefb6ded75..c487446ab98f 100644
--- a/packages/apputils-extension/src/workspacesplugin.ts
+++ b/packages/apputils-extension/src/workspacesplugin.ts
@@ -14,12 +14,8 @@ import {
   DocumentWidget,
   IDocumentWidget
 } from '@jupyterlab/docregistry';
-import { FileBrowser, IFileBrowserFactory } from '@jupyterlab/filebrowser';
-import {
-  ContentsManager,
-  Workspace,
-  WorkspaceManager
-} from '@jupyterlab/services';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
+import { Contents, Workspace, WorkspaceManager } from '@jupyterlab/services';
 import { IStateDB } from '@jupyterlab/statedb';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { Widget } from '@lumino/widgets';
@@ -40,9 +36,10 @@ const ICON_NAME = 'jp-JupyterIcon';
  */
 export const workspacesPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/apputils-extension:workspaces',
+  description: 'Add workspace file type and commands.',
   autoStart: true,
   requires: [
-    IFileBrowserFactory,
+    IDefaultFileBrowser,
     IWindowResolver,
     IStateDB,
     ITranslator,
@@ -51,7 +48,7 @@ export const workspacesPlugin: JupyterFrontEndPlugin<void> = {
   optional: [IRouter],
   activate: (
     app: JupyterFrontEnd,
-    fbf: IFileBrowserFactory,
+    fileBrowser: IDefaultFileBrowser,
     resolver: IWindowResolver,
     state: IStateDB,
     translator: ITranslator,
@@ -83,7 +80,7 @@ export const workspacesPlugin: JupyterFrontEndPlugin<void> = {
       execute: async () => {
         const data = app.serviceManager.workspaces.fetch(resolver.name);
         await Private.saveAs(
-          fbf.defaultBrowser,
+          fileBrowser,
           app.serviceManager.contents,
           data,
           state,
@@ -99,13 +96,7 @@ export const workspacesPlugin: JupyterFrontEndPlugin<void> = {
         const data = app.serviceManager.workspaces.fetch(resolver.name);
         const lastSave = (await state.fetch(LAST_SAVE_ID)) as string;
         if (lastSave === undefined) {
-          await Private.saveAs(
-            fbf.defaultBrowser,
-            contents,
-            data,
-            state,
-            translator
-          );
+          await Private.saveAs(fileBrowser, contents, data, state, translator);
         } else {
           await Private.save(lastSave, contents, data, state);
         }
@@ -120,7 +111,7 @@ namespace Private {
    */
   export async function save(
     userPath: string,
-    contents: ContentsManager,
+    contents: Contents.IManager,
     data: Promise<Workspace.IWorkspace>,
     state: IStateDB
   ): Promise<void> {
@@ -150,8 +141,8 @@ namespace Private {
    * Default location is the current directory in the file browser
    */
   export async function saveAs(
-    browser: FileBrowser,
-    contents: ContentsManager,
+    browser: IDefaultFileBrowser,
+    contents: Contents.IManager,
     data: Promise<Workspace.IWorkspace>,
     state: IStateDB,
     translator?: ITranslator
@@ -186,7 +177,8 @@ namespace Private {
     constructor(options: WorkspaceFactory.IOptions) {
       const trans = (options.translator || nullTranslator).load('jupyterlab');
       super({
-        name: trans.__('Workspace loader'),
+        name: 'Workspace loader',
+        label: trans.__('Workspace loader'),
         fileTypes: [WORKSPACE_NAME],
         defaultFor: [WORKSPACE_NAME],
         readOnly: true
@@ -207,7 +199,7 @@ namespace Private {
       // Save a file's contents as a workspace and navigate to that workspace.
       void context.ready.then(async () => {
         const file = context.model;
-        const workspace = (file.toJSON() as unknown) as Workspace.IWorkspace;
+        const workspace = file.toJSON() as unknown as Workspace.IWorkspace;
         const path = context.path;
         const id = workspace.metadata.id;
 
@@ -271,11 +263,14 @@ namespace Private {
   ): Promise<string | null> {
     translator = translator || nullTranslator;
     const trans = translator.load('jupyterlab');
-    const saveBtn = Dialog.okButton({ label: trans.__('Save') });
+    const saveBtn = Dialog.okButton({
+      label: trans.__('Save'),
+      ariaLabel: trans.__('Save Current Workspace')
+    });
     const result = await showDialog({
       title: trans.__('Save Current Workspace As…'),
       body: new SaveWidget(defaultPath),
-      buttons: [Dialog.cancelButton({ label: trans.__('Cancel') }), saveBtn]
+      buttons: [Dialog.cancelButton(), saveBtn]
     });
     if (result.button.label === trans.__('Save')) {
       return result.value;
diff --git a/packages/apputils-extension/style/base.css b/packages/apputils-extension/style/base.css
index 2ab5003ac4a9..6133a32abf9d 100644
--- a/packages/apputils-extension/style/base.css
+++ b/packages/apputils-extension/style/base.css
@@ -6,3 +6,4 @@
 
 @import './notification.css';
 @import './splash.css';
+@import './contextualhelp.css';
diff --git a/packages/apputils-extension/style/contextualhelp.css b/packages/apputils-extension/style/contextualhelp.css
new file mode 100644
index 000000000000..b4d2e3ecba66
--- /dev/null
+++ b/packages/apputils-extension/style/contextualhelp.css
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+:root {
+  --jp-private-shortcuts-key-padding-horizontal: 0.47em;
+  --jp-private-shortcuts-key-padding-vertical: 0.28em;
+  --jp-private-shortcuts-label-padding-horizontal: 0.47em;
+}
+
+.jp-ContextualShortcut-TableRow {
+  font-size: var(--jp-ui-font-size1);
+  font-family: var(--jp-ui-font-family);
+}
+
+.jp-ContextualShortcut-TableItem {
+  margin-left: auto;
+  margin-right: auto;
+  color: var(--jp-inverse-layout-color0);
+  font-size: var(--jp-ui-font-size1);
+  line-height: 2em;
+  padding-right: var(--jp-private-shortcuts-label-padding-horizontal);
+}
+
+.jp-ContextualShortcut-TableLastRow {
+  height: 2em;
+}
+
+.jp-ContextualShortcut-Key {
+  font-family: var(--jp-code-font-family);
+  border-width: var(--jp-border-width);
+  border-radius: var(--jp-border-radius);
+  border-style: solid;
+  border-color: var(--jp-border-color1);
+  color: var(--jp-ui-font-color1);
+  background: var(--jp-layout-color1);
+  padding-left: var(--jp-private-shortcuts-key-padding-horizontal);
+  padding-right: var(--jp-private-shortcuts-key-padding-horizontal);
+  padding-top: var(--jp-private-shortcuts-key-padding-vertical);
+  padding-bottom: var(--jp-private-shortcuts-key-padding-vertical);
+}
diff --git a/packages/apputils-extension/style/index.css b/packages/apputils-extension/style/index.css
index 5bc08d12bad4..b97011761127 100644
--- a/packages/apputils-extension/style/index.css
+++ b/packages/apputils-extension/style/index.css
@@ -6,11 +6,11 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
 @import url('~@jupyterlab/mainmenu/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/apputils-extension/style/index.js b/packages/apputils-extension/style/index.js
index 44b5fc40d1b3..50149c238e1b 100644
--- a/packages/apputils-extension/style/index.js
+++ b/packages/apputils-extension/style/index.js
@@ -6,6 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
diff --git a/packages/apputils-extension/style/notification.css b/packages/apputils-extension/style/notification.css
index 5dc30d8f259b..63da3f557fa5 100644
--- a/packages/apputils-extension/style/notification.css
+++ b/packages/apputils-extension/style/notification.css
@@ -191,11 +191,9 @@
   margin-bottom: 1px;
   margin-right: 0;
   margin-left: 3px;
-  color: var(--jp-ui-font-color1) !important;
-  background-color: var(--jp-layout-color2) !important;
-  background-image: none !important;
-  box-shadow: none !important;
-  border: none !important;
+  color: var(--jp-ui-font-color1);
+  background-color: var(--jp-layout-color2);
+  border: none;
 }
 
 .jp-toast-button:focus {
@@ -209,8 +207,7 @@
 }
 
 .jp-toast-button:hover {
-  background-color: var(--jp-layout-color3) !important;
-  box-shadow: none !important;
+  background-color: var(--jp-layout-color3);
 }
 
 .jp-toast-button.jp-mod-accept {
diff --git a/packages/apputils-extension/style/scrollbar.raw.css b/packages/apputils-extension/style/scrollbar.raw.css
new file mode 100644
index 000000000000..54d343f310a4
--- /dev/null
+++ b/packages/apputils-extension/style/scrollbar.raw.css
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/*
+ * Webkit scrollbar styling.
+ * Separate file which is dynamically loaded based on user/theme settings.
+ */
+
+/* use standard opaque scrollbars for most nodes */
+
+::-webkit-scrollbar,
+::-webkit-scrollbar-corner {
+  background: var(--jp-scrollbar-background-color);
+}
+
+::-webkit-scrollbar-thumb {
+  background: rgb(var(--jp-scrollbar-thumb-color));
+  border: var(--jp-scrollbar-thumb-margin) solid transparent;
+  background-clip: content-box;
+  border-radius: var(--jp-scrollbar-thumb-radius);
+}
+
+::-webkit-scrollbar-track:horizontal {
+  border-left: var(--jp-scrollbar-endpad) solid
+    var(--jp-scrollbar-background-color);
+  border-right: var(--jp-scrollbar-endpad) solid
+    var(--jp-scrollbar-background-color);
+}
+
+::-webkit-scrollbar-track:vertical {
+  border-top: var(--jp-scrollbar-endpad) solid
+    var(--jp-scrollbar-background-color);
+  border-bottom: var(--jp-scrollbar-endpad) solid
+    var(--jp-scrollbar-background-color);
+}
+
+/* for code nodes, use a transparent style of scrollbar */
+
+.CodeMirror-hscrollbar::-webkit-scrollbar,
+.CodeMirror-vscrollbar::-webkit-scrollbar,
+.CodeMirror-hscrollbar::-webkit-scrollbar-corner,
+.CodeMirror-vscrollbar::-webkit-scrollbar-corner {
+  background-color: transparent;
+}
+
+.CodeMirror-hscrollbar::-webkit-scrollbar-thumb,
+.CodeMirror-vscrollbar::-webkit-scrollbar-thumb {
+  background: rgba(var(--jp-scrollbar-thumb-color), 0.5);
+  border: var(--jp-scrollbar-thumb-margin) solid transparent;
+  background-clip: content-box;
+  border-radius: var(--jp-scrollbar-thumb-radius);
+}
+
+.CodeMirror-hscrollbar::-webkit-scrollbar-track:horizontal {
+  border-left: var(--jp-scrollbar-endpad) solid transparent;
+  border-right: var(--jp-scrollbar-endpad) solid transparent;
+}
+
+.CodeMirror-vscrollbar::-webkit-scrollbar-track:vertical {
+  border-top: var(--jp-scrollbar-endpad) solid transparent;
+  border-bottom: var(--jp-scrollbar-endpad) solid transparent;
+}
diff --git a/packages/apputils-extension/style/splash.css b/packages/apputils-extension/style/splash.css
index 891adef97267..8818fa8153e6 100644
--- a/packages/apputils-extension/style/splash.css
+++ b/packages/apputils-extension/style/splash.css
@@ -118,6 +118,7 @@
   0% {
     transform: rotateZ(0deg);
   }
+
   100% {
     transform: rotateZ(-720deg);
   }
@@ -127,6 +128,7 @@
   0% {
     transform: rotateZ(0deg);
   }
+
   100% {
     transform: rotateZ(720deg);
   }
@@ -136,6 +138,7 @@
   0% {
     opacity: 0;
   }
+
   100% {
     opacity: 1;
   }
@@ -145,6 +148,7 @@
   0% {
     opacity: 1;
   }
+
   100% {
     opacity: 0;
   }
diff --git a/packages/apputils-extension/tsconfig.json b/packages/apputils-extension/tsconfig.json
index 8d3ff3ee3aeb..29f665978685 100644
--- a/packages/apputils-extension/tsconfig.json
+++ b/packages/apputils-extension/tsconfig.json
@@ -24,6 +24,9 @@
     {
       "path": "../mainmenu"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../services"
     },
diff --git a/packages/apputils/.vscode/launch.json b/packages/apputils/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/apputils/.vscode/launch.json
+++ b/packages/apputils/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/apputils/babel.config.js b/packages/apputils/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/apputils/babel.config.js
+++ b/packages/apputils/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/apputils/jest.config.js b/packages/apputils/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/apputils/jest.config.js
+++ b/packages/apputils/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/apputils/package.json b/packages/apputils/package.json
index f8d62805030c..e73b400717aa 100644
--- a/packages/apputils/package.json
+++ b/packages/apputils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/apputils",
-  "version": "3.6.6",
+  "version": "4.1.8",
   "description": "JupyterLab - Application Utilities",
   "keywords": [
     "jupyter",
@@ -30,54 +30,51 @@
   "files": [
     "lib/**/*.{d.ts,js,js.map}",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "docs": "typedoc src",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test": "jest -i",
+    "test:cov": "jest -i --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "@types/react": "^17.0.0",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
-    "sanitize-html": "~2.7.3",
-    "url": "^0.11.0"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "@types/react": "^18.0.26",
+    "react": "^18.2.0",
+    "sanitize-html": "~2.7.3"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/react-dom": "^17.0.0",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
     "@types/sanitize-html": "^2.3.1",
-    "jest": "^26.4.2",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/apputils/src/commandpalette.ts b/packages/apputils/src/commandpalette.ts
index 4da88f5dfbfa..6d50ab176121 100644
--- a/packages/apputils/src/commandpalette.ts
+++ b/packages/apputils/src/commandpalette.ts
@@ -3,49 +3,9 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { Token } from '@lumino/coreutils';
-import { IDisposable } from '@lumino/disposable';
+import { searchIcon } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
 import { CommandPalette, Panel, Widget } from '@lumino/widgets';
-import { searchIcon } from '@jupyterlab/ui-components';
-
-/* tslint:disable */
-/**
- * The command palette token.
- */
-export const ICommandPalette = new Token<ICommandPalette>(
-  '@jupyterlab/apputils:ICommandPalette'
-);
-/* tslint:enable */
-
-/**
- * The options for creating a command palette item.
- */
-export interface IPaletteItem extends CommandPalette.IItemOptions {}
-
-/**
- * The interface for a Jupyter Lab command palette.
- */
-export interface ICommandPalette {
-  /**
-   * The placeholder text of the command palette's search input.
-   */
-  placeholder: string;
-
-  /**
-   * Activate the command palette for user input.
-   */
-  activate(): void;
-
-  /**
-   * Add a command item to the command palette.
-   *
-   * @param options - The options for creating the command item.
-   *
-   * @returns A disposable that will remove the item from the palette.
-   */
-  addItem(options: IPaletteItem): IDisposable;
-}
 
 /**
  * Class name identifying the input group with search icon.
diff --git a/packages/apputils/src/dialog.tsx b/packages/apputils/src/dialog.tsx
index c5f16699e077..e9381d254c8c 100644
--- a/packages/apputils/src/dialog.tsx
+++ b/packages/apputils/src/dialog.tsx
@@ -1,14 +1,19 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Button, closeIcon, LabIcon } from '@jupyterlab/ui-components';
-import { ArrayExt, each, map, toArray } from '@lumino/algorithm';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import {
+  Button,
+  closeIcon,
+  LabIcon,
+  ReactWidget,
+  Styling
+} from '@jupyterlab/ui-components';
+import { ArrayExt } from '@lumino/algorithm';
 import { PromiseDelegate } from '@lumino/coreutils';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Panel, PanelLayout, Widget } from '@lumino/widgets';
 import * as React from 'react';
-import { Styling } from './styling';
-import { ReactWidget } from './vdom';
 import { WidgetTracker } from './widgettracker';
 
 /**
@@ -35,11 +40,11 @@ export function showDialog<T>(
  */
 export function showErrorMessage(
   title: string,
-  error: any,
-  buttons: ReadonlyArray<Dialog.IButton> = [
-    Dialog.okButton({ label: 'Dismiss' })
-  ]
+  error: string | Dialog.IError,
+  buttons?: ReadonlyArray<Dialog.IButton>
 ): Promise<void> {
+  const trans = Dialog.translator.load('jupyterlab');
+  buttons = buttons ?? [Dialog.okButton({ label: trans.__('Dismiss') })];
   console.warn('Showing error:', error);
 
   // Cache promises to prevent multiple copies of identical dialogs showing
@@ -79,7 +84,9 @@ export class Dialog<T> extends Widget {
    * @param options - The dialog setup options.
    */
   constructor(options: Partial<Dialog.IOptions<T>> = {}) {
-    super();
+    const dialogNode = document.createElement('dialog');
+    dialogNode.ariaModal = 'true';
+    super({ node: dialogNode });
     this.addClass('jp-Dialog');
     const normalized = Private.handleOptions(options);
     const renderer = normalized.renderer;
@@ -88,13 +95,10 @@ export class Dialog<T> extends Widget {
     this._defaultButton = normalized.defaultButton;
     this._buttons = normalized.buttons;
     this._hasClose = normalized.hasClose;
-    this._buttonNodes = toArray(
-      map(this._buttons, button => {
-        return renderer.createButtonNode(button);
-      })
-    );
-
+    this._buttonNodes = this._buttons.map(b => renderer.createButtonNode(b));
     this._checkboxNode = null;
+    this._lastMouseDownInDialog = false;
+
     if (normalized.checkbox) {
       const {
         label = '',
@@ -110,13 +114,12 @@ export class Dialog<T> extends Widget {
       });
     }
 
-    this._lastMouseDownInDialog = false;
-
     const layout = (this.layout = new PanelLayout());
     const content = new Panel();
     content.addClass('jp-Dialog-content');
     if (typeof options.body === 'string') {
       content.addClass('jp-Dialog-content-small');
+      dialogNode.ariaLabel = [normalized.title, options.body].join(' ');
     }
     layout.addWidget(content);
 
@@ -133,6 +136,7 @@ export class Dialog<T> extends Widget {
     content.addWidget(body);
     content.addWidget(footer);
 
+    this._bodyWidget = body;
     this._primary = this._buttonNodes[this._defaultButton];
     this._focusNodeSelector = options.focusNodeSelector;
 
@@ -140,6 +144,13 @@ export class Dialog<T> extends Widget {
     void Dialog.tracker.add(this);
   }
 
+  /**
+   * A promise that resolves when the Dialog first rendering is done.
+   */
+  get ready(): Promise<void> {
+    return this._ready.promise;
+  }
+
   /**
    * Dispose of the resources used by the dialog.
    */
@@ -258,15 +269,34 @@ export class Dialog<T> extends Widget {
     document.addEventListener('focus', this, true);
     this._first = Private.findFirstFocusable(this.node);
     this._original = document.activeElement as HTMLElement;
-    if (this._focusNodeSelector) {
-      const body = this.node.querySelector('.jp-Dialog-body');
-      const el = body?.querySelector(this._focusNodeSelector);
 
-      if (el) {
-        this._primary = el as HTMLElement;
+    const setFocus = () => {
+      if (this._focusNodeSelector) {
+        const body = this.node.querySelector('.jp-Dialog-body');
+        const el = body?.querySelector(this._focusNodeSelector);
+
+        if (el) {
+          this._primary = el as HTMLElement;
+        }
       }
+      this._primary?.focus();
+      this._ready.resolve();
+    };
+
+    if (
+      this._bodyWidget instanceof ReactWidget &&
+      (this._bodyWidget as ReactWidget).renderPromise !== undefined
+    ) {
+      (this._bodyWidget as ReactWidget)
+        .renderPromise!.then(() => {
+          setFocus();
+        })
+        .catch(() => {
+          console.error("Error while loading Dialog's body");
+        });
+    } else {
+      setFocus();
     }
-    this._primary?.focus();
   }
 
   /**
@@ -457,6 +487,7 @@ export class Dialog<T> extends Widget {
     });
   }
 
+  private _ready: PromiseDelegate<void> = new PromiseDelegate<void>();
   private _buttonNodes: ReadonlyArray<HTMLElement>;
   private _buttons: ReadonlyArray<Dialog.IButton>;
   private _checkboxNode: HTMLElement | null;
@@ -470,12 +501,18 @@ export class Dialog<T> extends Widget {
   private _body: Dialog.Body<T>;
   private _lastMouseDownInDialog: boolean;
   private _focusNodeSelector: string | undefined = '';
+  private _bodyWidget: Widget;
 }
 
 /**
  * The namespace for Dialog class statics.
  */
 export namespace Dialog {
+  /**
+   * Translator object.
+   */
+  export let translator: ITranslator = nullTranslator;
+
   /**
    * The body input types.
    */
@@ -500,6 +537,10 @@ export namespace Dialog {
    * The options used to make a button item.
    */
   export interface IButton {
+    /**
+     * The aria label for the button.
+     */
+    ariaLabel: string;
     /**
      * The label for the button.
      */
@@ -566,6 +607,16 @@ export namespace Dialog {
     className: string;
   }
 
+  /**
+   * Error object interface
+   */
+  export interface IError {
+    /**
+     * Error message
+     */
+    message: string | React.ReactElement<any>;
+  }
+
   /**
    * The options used to create a dialog.
    */
@@ -715,8 +766,10 @@ export namespace Dialog {
    */
   export function createButton(value: Partial<IButton>): Readonly<IButton> {
     value.accept = value.accept !== false;
-    const defaultLabel = value.accept ? 'OK' : 'Cancel';
+    const trans = translator.load('jupyterlab');
+    const defaultLabel = value.accept ? trans.__('Ok') : trans.__('Cancel');
     return {
+      ariaLabel: value.ariaLabel || value.label || defaultLabel,
       label: value.label || defaultLabel,
       iconClass: value.iconClass || '',
       iconLabel: value.iconLabel || '',
@@ -805,6 +858,7 @@ export namespace Dialog {
       };
 
       if (typeof title === 'string') {
+        const trans = translator.load('jupyterlab');
         header = ReactWidget.create(
           <>
             {title}
@@ -813,7 +867,7 @@ export namespace Dialog {
                 className="jp-Dialog-close-button"
                 onMouseDown={handleMouseDown}
                 onKeyDown={handleKeyDown}
-                title="Cancel"
+                title={trans.__('Cancel')}
                 minimal
               >
                 <LabIcon.resolveReact
@@ -842,20 +896,39 @@ export namespace Dialog {
      * @returns A widget for the body.
      */
     createBody(value: Body<any>): Widget {
+      const styleReactWidget = (widget: ReactWidget) => {
+        if (widget.renderPromise !== undefined) {
+          widget.renderPromise
+            .then(() => {
+              Styling.styleNode(widget.node);
+            })
+            .catch(() => {
+              console.error("Error while loading Dialog's body");
+            });
+        } else {
+          Styling.styleNode(widget.node);
+        }
+      };
+
       let body: Widget;
       if (typeof value === 'string') {
         body = new Widget({ node: document.createElement('span') });
         body.node.textContent = value;
       } else if (value instanceof Widget) {
         body = value;
+        if (body instanceof ReactWidget) {
+          styleReactWidget(body);
+        } else {
+          Styling.styleNode(body.node);
+        }
       } else {
         body = ReactWidget.create(value);
         // Immediately update the body even though it has not yet attached in
         // order to trigger a render of the DOM nodes from the React element.
         MessageLoop.sendMessage(body, Widget.Msg.UpdateRequest);
+        styleReactWidget(body as ReactWidget);
       }
       body.addClass('jp-Dialog-body');
-      Styling.styleNode(body.node);
       return body;
     }
 
@@ -872,6 +945,7 @@ export namespace Dialog {
       checkbox: HTMLElement | null
     ): Widget {
       const footer = new Widget();
+
       footer.addClass('jp-Dialog-footer');
       if (checkbox) {
         footer.node.appendChild(checkbox);
@@ -880,10 +954,11 @@ export namespace Dialog {
           '<div class="jp-Dialog-spacer"></div>'
         );
       }
-      each(buttons, button => {
+      for (const button of buttons) {
         footer.node.appendChild(button);
-      });
+      }
       Styling.styleNode(footer.node);
+
       return footer;
     }
 
@@ -993,6 +1068,7 @@ export namespace Dialog {
       const e = document.createElement('div');
       e.className = 'jp-Dialog-buttonLabel';
       e.title = data.caption;
+      e.ariaLabel = data.ariaLabel;
       e.appendChild(document.createTextNode(data.label));
       return e;
     }
diff --git a/packages/apputils/src/domutils.ts b/packages/apputils/src/domutils.ts
index 1b3bbc92e21e..39d03b810559 100644
--- a/packages/apputils/src/domutils.ts
+++ b/packages/apputils/src/domutils.ts
@@ -39,9 +39,9 @@ export namespace DOMUtils {
     parent: HTMLElement,
     className: string
   ): HTMLCollectionOf<HTMLElement> {
-    return parent.getElementsByClassName(className) as HTMLCollectionOf<
-      HTMLElement
-    >;
+    return parent.getElementsByClassName(
+      className
+    ) as HTMLCollectionOf<HTMLElement>;
   }
 
   /**
diff --git a/packages/apputils/src/index.ts b/packages/apputils/src/index.ts
index 277833a2ff0f..dbf4cc428c5b 100644
--- a/packages/apputils/src/index.ts
+++ b/packages/apputils/src/index.ts
@@ -4,30 +4,75 @@
  * @packageDocumentation
  * @module apputils
  */
+import { Toolbar as UIToolbar } from '@jupyterlab/ui-components';
+import { Widget } from '@lumino/widgets';
+import { Toolbar as ApputilsToolbar } from './toolbar';
+
+/**
+ * @deprecated since v4
+ * These widgets are now in @jupyterlab/ui-components
+ */
+export {
+  addCommandToolbarButtonClass,
+  addToolbarButtonClass,
+  Collapser as Collapse,
+  CommandToolbarButton,
+  CommandToolbarButtonComponent,
+  IFrame,
+  IUseSignalProps,
+  IUseSignalState,
+  HoverBox,
+  ReactWidget,
+  Spinner,
+  Styling,
+  ToolbarButton,
+  ToolbarButtonComponent,
+  UseSignal,
+  VDomModel,
+  VDomRenderer
+} from '@jupyterlab/ui-components';
 
 export * from './clipboard';
-export * from './collapse';
 export * from './commandlinker';
 export * from './commandpalette';
 export * from './dialog';
 export * from './domutils';
-export * from './hoverbox';
-export * from './iframe';
 export * from './inputdialog';
+export * from './kernelstatuses';
 export * from './mainareawidget';
 export * from './menufactory';
 export * from './notification';
 export * from './printing';
+export * from './runningSessions';
 export * from './sanitizer';
-export * from './search';
+export * from './semanticCommand';
 export * from './sessioncontext';
-export * from './spinner';
-export * from './splash';
-export * from './styling';
 export * from './thememanager';
 export * from './tokens';
-export * from './toolbar';
-export * from './vdom';
+export {
+  ToolbarWidgetRegistry,
+  createDefaultFactory,
+  createToolbarFactory,
+  setToolbar
+} from './toolbar';
 export * from './widgettracker';
 export * from './windowresolver';
-export * from './kernelstatuses';
+
+// Merge Toolbar namespace to preserve API
+/**
+ * @deprecated since v4
+ * This class is in @jupyterlab/ui-components
+ */
+export class Toolbar<T extends Widget = Widget> extends UIToolbar<T> {}
+
+export namespace Toolbar {
+  export const createInterruptButton = ApputilsToolbar.createInterruptButton;
+  export const createKernelNameItem = ApputilsToolbar.createKernelNameItem;
+  export const createKernelStatusItem = ApputilsToolbar.createKernelStatusItem;
+  export const createRestartButton = ApputilsToolbar.createRestartButton;
+  /**
+   * @deprecated since v4
+   * This helper function is in @jupyterlab/ui-components
+   */
+  export const createSpacerItem = UIToolbar.createSpacerItem;
+}
diff --git a/packages/apputils/src/inputdialog.ts b/packages/apputils/src/inputdialog.ts
index 72559dc68d87..fa87352c2790 100644
--- a/packages/apputils/src/inputdialog.ts
+++ b/packages/apputils/src/inputdialog.ts
@@ -4,7 +4,6 @@
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { Dialog, showDialog } from './dialog';
-import { Styling } from './styling';
 
 const INPUT_DIALOG_CLASS = 'jp-Input-Dialog';
 
@@ -163,6 +162,40 @@ export namespace InputDialog {
     });
   }
 
+  /**
+   * Constructor options for item selection input dialogs
+   */
+  export interface IMultipleItemsOptions extends IOptions {
+    /**
+     * List of choices
+     */
+    items: Array<string>;
+    /**
+     * Default choices
+     */
+    defaults?: string[];
+  }
+
+  /**
+   * Create and show a input dialog for a choice.
+   *
+   * @param options - The dialog setup options.
+   *
+   * @returns A promise that resolves with whether the dialog was accepted
+   */
+  export function getMultipleItems(
+    options: IMultipleItemsOptions
+  ): Promise<Dialog.IResult<string[]>> {
+    return showDialog({
+      ...options,
+      body: new InputMultipleItemsDialog(options),
+      buttons: [
+        Dialog.cancelButton({ label: options.cancelLabel }),
+        Dialog.okButton({ label: options.okLabel })
+      ]
+    });
+  }
+
   /**
    * Constructor options for text input dialogs
    */
@@ -442,7 +475,7 @@ class InputItemsDialog extends InputDialogBase<string> {
     } else {
       /* Use select directly */
       this._input.remove();
-      this.node.appendChild(Styling.wrapSelect(this._list));
+      this.node.appendChild(this._list);
     }
   }
 
@@ -460,3 +493,59 @@ class InputItemsDialog extends InputDialogBase<string> {
   private _list: HTMLSelectElement;
   private _editable: boolean;
 }
+
+/**
+ * Widget body for input list dialog
+ */
+class InputMultipleItemsDialog extends InputDialogBase<string> {
+  /**
+   * InputMultipleItemsDialog constructor
+   *
+   * @param options Constructor options
+   */
+  constructor(options: InputDialog.IMultipleItemsOptions) {
+    super(options.label);
+
+    let defaults = options.defaults || [];
+
+    this._list = document.createElement('select');
+    this._list.setAttribute('multiple', '');
+
+    options.items.forEach(item => {
+      const option = document.createElement('option');
+      option.value = item;
+      option.textContent = item;
+      this._list.appendChild(option);
+    });
+
+    // use the select
+    this._input.remove();
+    this.node.appendChild(this._list);
+
+    // select the current ones
+    const htmlOptions = this._list.options;
+    for (let i: number = 0; i < htmlOptions.length; i++) {
+      const option = htmlOptions[i];
+      if (defaults.includes(option.value)) {
+        option.selected = true;
+      } else {
+        option.selected = false;
+      }
+    }
+  }
+
+  /**
+   * Get the user choices
+   */
+  getValue(): string[] {
+    let result = [];
+    for (let opt of this._list.options) {
+      if (opt.selected && !opt.classList.contains('hidden')) {
+        result.push(opt.value || opt.text);
+      }
+    }
+    return result;
+  }
+
+  private _list: HTMLSelectElement;
+}
diff --git a/packages/statusbar/src/defaults/kernelStatus.tsx b/packages/apputils/src/kernelstatuses.tsx
similarity index 81%
rename from packages/statusbar/src/defaults/kernelStatus.tsx
rename to packages/apputils/src/kernelstatuses.tsx
index a2a4f327aa03..fe8d36c9d405 100644
--- a/packages/statusbar/src/defaults/kernelStatus.tsx
+++ b/packages/apputils/src/kernelstatuses.tsx
@@ -1,21 +1,47 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ISessionContext,
-  translateKernelStatuses,
-  VDomModel,
-  VDomRenderer
-} from '@jupyterlab/apputils';
 import { Session } from '@jupyterlab/services';
+import { TextItem } from '@jupyterlab/statusbar';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { JSONArray, JSONExt } from '@lumino/coreutils';
 import React from 'react';
-import { interactiveItem, TextItem } from '..';
+import { ISessionContext } from './sessioncontext';
+
+/**
+ * Helper function to translate kernel statuses mapping by using
+ * input translator.
+ *
+ * @param translator - Language translator.
+ * @return The translated kernel status mapping.
+ */
+export function translateKernelStatuses(
+  translator?: ITranslator
+): Record<ISessionContext.KernelDisplayStatus, string> {
+  translator = translator || nullTranslator;
+  const trans = translator.load('jupyterlab');
+  const translated: Record<ISessionContext.KernelDisplayStatus, string> = {
+    unknown: trans.__('Unknown'),
+    starting: trans.__('Starting'),
+    idle: trans.__('Idle'),
+    busy: trans.__('Busy'),
+    terminating: trans.__('Terminating'),
+    restarting: trans.__('Restarting'),
+    autorestarting: trans.__('Autorestarting'),
+    dead: trans.__('Dead'),
+    connected: trans.__('Connected'),
+    connecting: trans.__('Connecting'),
+    disconnected: trans.__('Disconnected'),
+    initializing: trans.__('Initializing'),
+    '': ''
+  };
+  return translated;
+}
 
 /**
  * A pure functional component for rendering kernel status.
@@ -85,13 +111,13 @@ export class KernelStatus extends VDomRenderer<KernelStatus.Model> {
     super(new KernelStatus.Model(translator));
     this.translator = translator || nullTranslator;
     this._handleClick = opts.onClick;
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
   }
 
   /**
    * Render the kernel status item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (this.model === null) {
       return null;
     } else {
@@ -121,23 +147,22 @@ export namespace KernelStatus {
   export class Model extends VDomModel {
     constructor(translator?: ITranslator) {
       super();
-      translator = translator || nullTranslator;
+      translator = translator ?? nullTranslator;
       this._trans = translator.load('jupyterlab');
-      this._kernelName = this._trans.__('No Kernel!');
       this._statusNames = translateKernelStatuses(translator);
     }
 
     /**
      * The name of the kernel.
      */
-    get kernelName() {
+    get kernelName(): string {
       return this._kernelName;
     }
 
     /**
      * The current status of the kernel.
      */
-    get status() {
+    get status(): string | undefined {
       return this._kernelStatus
         ? this._statusNames[this._kernelStatus]
         : undefined;
@@ -155,7 +180,7 @@ export namespace KernelStatus {
         return;
       }
       this._activityName = val;
-      this.stateChanged.emit(void 0);
+      this.stateChanged.emit();
     }
 
     /**
@@ -227,8 +252,8 @@ export namespace KernelStatus {
 
     protected translation: ITranslator;
     private _trans: TranslationBundle;
-    private _activityName: string = 'activity'; // FIXME-TRANS:?
-    private _kernelName: string; // Initialized in constructor due to localization
+    private _activityName: string = '';
+    private _kernelName: string = '';
     private _kernelStatus: ISessionContext.KernelDisplayStatus | undefined = '';
     private _sessionContext: ISessionContext | null = null;
     private readonly _statusNames: Record<
diff --git a/packages/apputils/src/mainareawidget.ts b/packages/apputils/src/mainareawidget.ts
index 35b88af74d68..fbc88ccf2d76 100644
--- a/packages/apputils/src/mainareawidget.ts
+++ b/packages/apputils/src/mainareawidget.ts
@@ -2,12 +2,11 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { ReactiveToolbar, Spinner, Toolbar } from '@jupyterlab/ui-components';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { BoxLayout, BoxPanel, Widget } from '@lumino/widgets';
 import { DOMUtils } from './domutils';
 import { Printing } from './printing';
-import { Spinner } from './spinner';
-import { ReactiveToolbar, Toolbar } from './toolbar';
 
 /**
  * A flag to indicate that event handlers are caught in the capture phase.
@@ -25,7 +24,8 @@ const USE_CAPTURE = true;
  */
 export class MainAreaWidget<T extends Widget = Widget>
   extends Widget
-  implements Printing.IPrintable {
+  implements Printing.IPrintable
+{
   /**
    * Construct a new main area widget.
    *
@@ -350,7 +350,7 @@ export namespace MainAreaWidget {
     content?: T;
 
     /**
-     * The toolbar to use for the widget.  Defaults to an empty toolbar.
+     * The toolbar to use for the widget. Defaults to an empty toolbar.
      */
     toolbar?: Toolbar;
 
diff --git a/packages/apputils/src/menufactory.ts b/packages/apputils/src/menufactory.ts
index a4507f1ec9da..b06fc65cbc2f 100644
--- a/packages/apputils/src/menufactory.ts
+++ b/packages/apputils/src/menufactory.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { Text } from '@jupyterlab/coreutils';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { LabIcon } from '@jupyterlab/ui-components';
diff --git a/packages/statusbar/src/defaults/runningSessions.tsx b/packages/apputils/src/runningSessions.tsx
similarity index 92%
rename from packages/statusbar/src/defaults/runningSessions.tsx
rename to packages/apputils/src/runningSessions.tsx
index 659cfa6f081c..d7199faec972 100644
--- a/packages/statusbar/src/defaults/runningSessions.tsx
+++ b/packages/apputils/src/runningSessions.tsx
@@ -1,7 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
 import {
   ServiceManager,
   Session,
@@ -14,9 +13,14 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { kernelIcon, terminalIcon } from '@jupyterlab/ui-components';
+import {
+  kernelIcon,
+  terminalIcon,
+  VDomModel,
+  VDomRenderer
+} from '@jupyterlab/ui-components';
 import React from 'react';
-import { GroupItem, interactiveItem, TextItem } from '..';
+import { GroupItem, TextItem } from '@jupyterlab/statusbar';
 
 /**
  * Half spacing between subitems in a status item.
@@ -85,7 +89,7 @@ export class RunningSessions extends VDomRenderer<RunningSessions.Model> {
     this._serviceManager = opts.serviceManager;
     this._handleClick = opts.onClick;
     this.translator = opts.translator || nullTranslator;
-    this._trans = this.translator.load('jupyterload');
+    this._trans = this.translator.load('jupyterlab');
 
     this._serviceManager.sessions.runningChanged.connect(
       this._onSessionsRunningChanged,
@@ -96,13 +100,13 @@ export class RunningSessions extends VDomRenderer<RunningSessions.Model> {
       this
     );
 
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
   }
 
   /**
    * Render the running sessions widget.
    */
-  render() {
+  render(): JSX.Element | null {
     if (!this.model) {
       return null;
     }
@@ -125,7 +129,7 @@ export class RunningSessions extends VDomRenderer<RunningSessions.Model> {
   /**
    * Dispose of the status item.
    */
-  dispose() {
+  dispose(): void {
     super.dispose();
 
     this._serviceManager.sessions.runningChanged.disconnect(
@@ -161,7 +165,7 @@ export class RunningSessions extends VDomRenderer<RunningSessions.Model> {
   protected translator: ITranslator;
   private _trans: TranslationBundle;
   private _handleClick: () => void;
-  private _serviceManager: ServiceManager;
+  private _serviceManager: ServiceManager.IManager;
 }
 
 /**
@@ -213,7 +217,7 @@ export namespace RunningSessions {
     /**
      * The application service manager.
      */
-    serviceManager: ServiceManager;
+    serviceManager: ServiceManager.IManager;
 
     /**
      * A click handler for the item. By default this is used
diff --git a/packages/apputils/src/sanitizer.ts b/packages/apputils/src/sanitizer.ts
index 2e22a91a9c53..aab3981a7d7f 100644
--- a/packages/apputils/src/sanitizer.ts
+++ b/packages/apputils/src/sanitizer.ts
@@ -1,10 +1,9 @@
+/* eslint-disable camelcase */
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-// sanitize-html uses the url package, so we depend on a standalone version of
-// it which acts as a polyfill for browsers.
 import sanitize from 'sanitize-html';
-import { ISanitizer } from './tokens';
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 
 /**
  * Helper class that contains regular expressions for inline CSS style validation.
@@ -434,7 +433,7 @@ class CssProp {
 /**
  * A class to sanitize HTML strings.
  */
-export class Sanitizer implements ISanitizer {
+export class Sanitizer implements IRenderMime.ISanitizer {
   /**
    * Sanitize an HTML string.
    *
@@ -444,10 +443,17 @@ export class Sanitizer implements ISanitizer {
    *
    * @returns The sanitized string.
    */
-  sanitize(dirty: string, options?: ISanitizer.IOptions): string {
+  sanitize(dirty: string, options?: IRenderMime.ISanitizerOptions): string {
     return sanitize(dirty, { ...this._options, ...(options || {}) });
   }
 
+  /**
+   * @returns Whether to replace URLs by HTML anchors.
+   */
+  getAutolink(): boolean {
+    return this._autolink;
+  }
+
   /**
    * Set the allowed schemes
    *
@@ -458,6 +464,17 @@ export class Sanitizer implements ISanitizer {
     this._options.allowedSchemes = [...scheme];
   }
 
+  /**
+   * Set the URL replacement boolean.
+   *
+   * @param autolink URL replacement boolean.
+   */
+  setAutolink(autolink: boolean): void {
+    this._autolink = autolink;
+  }
+
+  private _autolink: boolean = true;
+
   private _options: sanitize.IOptions = {
     // HTML tags that are allowed to be used. Tags were extracted from Google Caja
     allowedTags: [
@@ -967,11 +984,3 @@ export class Sanitizer implements ISanitizer {
     allowedSchemesAppliedToAttributes: ['href', 'cite']
   };
 }
-
-/**
- * The default instance of an `ISanitizer` meant for use by user code.
- *
- * @deprecated It will be removed in JupyterLab v4. You should request the `ISanitizer` in
- * your plugin instead.
- */
-export const defaultSanitizer: ISanitizer = new Sanitizer();
diff --git a/packages/apputils/src/semanticCommand.ts b/packages/apputils/src/semanticCommand.ts
new file mode 100644
index 000000000000..afecc0c32717
--- /dev/null
+++ b/packages/apputils/src/semanticCommand.ts
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { Widget } from '@lumino/widgets';
+
+/**
+ * Options when add a command to a semantic group.
+ */
+interface ISemanticCommand {
+  /**
+   * Command id
+   */
+  id: string;
+  /**
+   * Whether this command is enabled for a given widget
+   * @param widget Widget
+   */
+  isEnabled?(widget: Widget): boolean;
+  /**
+   * Command rank in the semantic group
+   *
+   * #### Note
+   * If multiple commands are enabled at the same time,
+   * the one with the smallest rank will be executed.
+   */
+  rank?: number;
+}
+
+/**
+ * Semantic group of commands
+ */
+export class SemanticCommand {
+  /**
+   * Default rank for semantic command
+   */
+  static readonly DEFAULT_RANK = 500;
+
+  /**
+   * Add a command to the semantic group
+   *
+   * @param command Command to add
+   */
+  add(command: ISemanticCommand): void {
+    if (this._commands.map(c => c.id).includes(command.id)) {
+      throw Error(`Command ${command.id} is already defined.`);
+    }
+
+    this._commands.push({
+      isEnabled: () => true,
+      rank: SemanticCommand.DEFAULT_RANK,
+      ...command
+    });
+  }
+
+  /**
+   * Get the command id of the enabled command from this group
+   * for the given widget.
+   *
+   * @param widget Widget
+   * @returns Command id
+   */
+  getActiveCommandId(widget: Widget): string | null {
+    const commands = this._commands
+      .filter(c => c.isEnabled(widget))
+      .sort((a, b) => {
+        const rankDelta = a.rank - b.rank;
+        return rankDelta || (a.id < b.id ? -1 : 1);
+      });
+
+    const command = commands[0] ?? { id: null };
+    return command.id;
+  }
+
+  protected _commands = new Array<Required<ISemanticCommand>>();
+}
diff --git a/packages/apputils/src/sessioncontext.tsx b/packages/apputils/src/sessioncontext.tsx
index 1b2cec3e0cd5..030525584536 100644
--- a/packages/apputils/src/sessioncontext.tsx
+++ b/packages/apputils/src/sessioncontext.tsx
@@ -14,8 +14,8 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { each, find, IterableOrArrayLike } from '@lumino/algorithm';
-import { PromiseDelegate, UUID } from '@lumino/coreutils';
+import { find } from '@lumino/algorithm';
+import { JSONExt, PromiseDelegate, UUID } from '@lumino/coreutils';
 import { IDisposable, IObservableDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
@@ -96,6 +96,14 @@ export interface ISessionContext extends IObservableDisposable {
     >
   >;
 
+  /**
+   * Signal emitted if the kernel preference changes.
+   */
+  readonly kernelPreferenceChanged: ISignal<
+    this,
+    IChangedArgs<ISessionContext.IKernelPreference>
+  >;
+
   /**
    * A signal emitted when the kernel status changes, proxied from the session connection.
    */
@@ -198,6 +206,13 @@ export interface ISessionContext extends IObservableDisposable {
    */
   readonly specsManager: KernelSpec.IManager;
 
+  /**
+   * Starts new Kernel.
+   *
+   * @returns Whether to ask the user to pick a kernel.
+   */
+  startKernel(): Promise<boolean>;
+
   /**
    * Restart the current Kernel.
    *
@@ -269,7 +284,7 @@ export namespace ISessionContext {
 
     /**
      * Automatically start the default kernel if no other matching kernel is
-     * found (default `true`).
+     * found (default `false`).
      */
     readonly autoStartDefault?: boolean;
   }
@@ -287,10 +302,7 @@ export namespace ISessionContext {
     /**
      * Select a kernel for the session.
      */
-    selectKernel(
-      session: ISessionContext,
-      translator?: ITranslator
-    ): Promise<void>;
+    selectKernel(session: ISessionContext): Promise<void>;
 
     /**
      * Restart the session context.
@@ -303,10 +315,17 @@ export namespace ISessionContext {
      * kernel name and resolves with `true`. If no kernel has been started,
      * this is a no-op, and resolves with `false`.
      */
-    restart(
-      session: ISessionContext,
-      translator?: ITranslator
-    ): Promise<boolean>;
+    restart(session: ISessionContext): Promise<boolean>;
+  }
+
+  /**
+   * Session context dialog options
+   */
+  export interface IDialogsOptions {
+    /**
+     * Application translator object
+     */
+    translator?: ITranslator;
   }
 }
 
@@ -445,7 +464,25 @@ export class SessionContext implements ISessionContext {
     return this._kernelPreference;
   }
   set kernelPreference(value: ISessionContext.IKernelPreference) {
-    this._kernelPreference = value;
+    if (!JSONExt.deepEqual(value as any, this._kernelPreference as any)) {
+      const oldValue = this._kernelPreference;
+      this._kernelPreference = value;
+      this._preferenceChanged.emit({
+        name: 'kernelPreference',
+        oldValue,
+        newValue: JSONExt.deepCopy(value as any)
+      });
+    }
+  }
+
+  /**
+   * Signal emitted if the kernel preference changes.
+   */
+  get kernelPreferenceChanged(): ISignal<
+    this,
+    IChangedArgs<ISessionContext.IKernelPreference>
+  > {
+    return this._preferenceChanged;
   }
 
   /**
@@ -508,26 +545,7 @@ export class SessionContext implements ISessionContext {
     if (this._pendingKernelName === this.noKernelName) {
       return this.noKernelName;
     }
-    if (
-      !kernel &&
-      !this.isReady &&
-      this.kernelPreference.canStart !== false &&
-      this.kernelPreference.shouldStart !== false
-    ) {
-      let name =
-        this._pendingKernelName ||
-        SessionContext.getDefaultKernel({
-          specs: this.specsManager.specs,
-          sessions: this.sessionManager.running(),
-          preference: this.kernelPreference
-        }) ||
-        '';
-      if (name) {
-        name = this.specsManager.specs?.kernelspecs[name]?.display_name ?? name;
-        return name;
-      }
-      return this.noKernelName;
-    }
+
     if (this._pendingKernelName) {
       return (
         this.specsManager.specs?.kernelspecs[this._pendingKernelName]
@@ -645,6 +663,45 @@ export class SessionContext implements ISessionContext {
     Signal.clearData(this);
   }
 
+  /**
+   * Starts new Kernel.
+   *
+   * @returns Whether to ask the user to pick a kernel.
+   */
+  async startKernel(): Promise<boolean> {
+    const preference = this.kernelPreference;
+
+    if (!preference.autoStartDefault && preference.shouldStart === false) {
+      return true;
+    }
+
+    let options: Partial<Kernel.IModel> | undefined;
+    if (preference.id) {
+      options = { id: preference.id };
+    } else {
+      const name = Private.getDefaultKernel({
+        specs: this.specsManager.specs,
+        sessions: this.sessionManager.running(),
+        preference
+      });
+      if (name) {
+        options = { name };
+      }
+    }
+
+    if (options) {
+      try {
+        await this._changeKernel(options);
+        return false;
+      } catch (err) {
+        /* no-op */
+      }
+    }
+
+    // Always fall back to selecting a kernel
+    return true;
+  }
+
   /**
    * Restart the current Kernel.
    *
@@ -817,39 +874,14 @@ export class SessionContext implements ISessionContext {
       return false;
     }
 
-    let options: Partial<Kernel.IModel> | undefined;
-    if (preference.id) {
-      options = { id: preference.id };
-    } else {
-      const name = SessionContext.getDefaultKernel({
-        specs: this.specsManager.specs,
-        sessions: this.sessionManager.running(),
-        preference
-      });
-      if (name) {
-        options = { name };
-      }
-    }
-
-    if (options) {
-      try {
-        await this._changeKernel(options);
-        return false;
-      } catch (err) {
-        /* no-op */
-      }
-    }
-
-    // Always fall back to selecting a kernel
-    return true;
+    return this.startKernel();
   }
 
   /**
    * Change the kernel.
    */
   private async _changeKernel(
-    model: Partial<Kernel.IModel> = {},
-    isInit = false
+    model: Partial<Kernel.IModel> = {}
   ): Promise<Kernel.IKernelConnection | null> {
     if (model.name) {
       this._pendingKernelName = model.name;
@@ -1168,6 +1200,10 @@ export class SessionContext implements ISessionContext {
     this,
     Session.ISessionConnection.IKernelChangedArgs
   >(this);
+  private _preferenceChanged = new Signal<
+    this,
+    IChangedArgs<ISessionContext.IKernelPreference>
+  >(this);
   private _sessionChanged = new Signal<
     this,
     IChangedArgs<
@@ -1259,13 +1295,20 @@ export namespace SessionContext {
     /**
      * The current running sessions.
      */
-    sessions?: IterableOrArrayLike<Session.IModel>;
+    sessions?: Iterable<Session.IModel>;
   }
 
   /**
    * Get the default kernel name given select options.
    */
   export function getDefaultKernel(options: IKernelSearch): string | null {
+    const { preference } = options;
+    const { shouldStart } = preference;
+
+    if (shouldStart === false) {
+      return null;
+    }
+
     return Private.getDefaultKernel(options);
   }
 }
@@ -1273,19 +1316,19 @@ export namespace SessionContext {
 /**
  * The default implementation of the client session dialog provider.
  */
-export const sessionContextDialogs: ISessionContext.IDialogs = {
+export class SessionContextDialogs implements ISessionContext.IDialogs {
+  constructor(options: ISessionContext.IDialogsOptions = {}) {
+    this._translator = options.translator ?? nullTranslator;
+  }
+
   /**
    * Select a kernel for the session.
    */
-  async selectKernel(
-    sessionContext: ISessionContext,
-    translator?: ITranslator
-  ): Promise<void> {
+  async selectKernel(sessionContext: ISessionContext): Promise<void> {
     if (sessionContext.isDisposed) {
       return Promise.resolve();
     }
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
+    const trans = this._translator.load('jupyterlab');
 
     // If there is no existing kernel, offer the option
     // to keep no kernel.
@@ -1294,20 +1337,46 @@ export const sessionContextDialogs: ISessionContext.IDialogs = {
       label = sessionContext.kernelDisplayName;
     }
     const buttons = [
-      Dialog.cancelButton({ label }),
-      Dialog.okButton({ label: trans.__('Select') })
+      Dialog.cancelButton({
+        label
+      }),
+      Dialog.okButton({
+        label: trans.__('Select'),
+        ariaLabel: trans.__('Select Kernel')
+      })
     ];
 
+    const autoStartDefault = sessionContext.kernelPreference.autoStartDefault;
+    const hasCheckbox = typeof autoStartDefault === 'boolean';
+
     const dialog = new Dialog({
       title: trans.__('Select Kernel'),
-      body: new Private.KernelSelector(sessionContext, translator),
-      buttons
+      body: new Private.KernelSelector(sessionContext, this._translator),
+      buttons,
+      checkbox: hasCheckbox
+        ? {
+            label: trans.__('Always start the preferred kernel'),
+            caption: trans.__(
+              'Remember my choice and always start the preferred kernel'
+            ),
+            checked: autoStartDefault
+          }
+        : null
     });
 
     const result = await dialog.launch();
+
     if (sessionContext.isDisposed || !result.button.accept) {
       return;
     }
+
+    if (hasCheckbox && result.isChecked !== null) {
+      sessionContext.kernelPreference = {
+        ...sessionContext.kernelPreference,
+        autoStartDefault: result.isChecked
+      };
+    }
+
     const model = result.value;
     if (model === null && !sessionContext.hasNoKernel) {
       return sessionContext.shutdown();
@@ -1315,7 +1384,7 @@ export const sessionContextDialogs: ISessionContext.IDialogs = {
     if (model) {
       await sessionContext.changeKernel(model);
     }
-  },
+  }
 
   /**
    * Restart the session.
@@ -1327,12 +1396,8 @@ export const sessionContextDialogs: ISessionContext.IDialogs = {
    * If there is no kernel, we start a kernel with the last run
    * kernel name and resolves with `true`.
    */
-  async restart(
-    sessionContext: ISessionContext,
-    translator?: ITranslator
-  ): Promise<boolean> {
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
+  async restart(sessionContext: ISessionContext): Promise<boolean> {
+    const trans = this._translator.load('jupyterlab');
 
     await sessionContext.initialize();
     if (sessionContext.isDisposed) {
@@ -1350,13 +1415,20 @@ export const sessionContextDialogs: ISessionContext.IDialogs = {
       throw new Error('No kernel to restart');
     }
 
-    const restartBtn = Dialog.warnButton({ label: 'Restart' });
+    const restartBtn = Dialog.warnButton({
+      label: trans.__('Restart'),
+      ariaLabel: trans.__('Confirm Kernel Restart')
+    });
     const result = await showDialog({
       title: trans.__('Restart Kernel?'),
       body: trans.__(
-        'Do you want to restart the current kernel? All variables will be lost.'
+        'Do you want to restart the kernel of %1? All variables will be lost.',
+        sessionContext.name
       ),
-      buttons: [Dialog.cancelButton(), restartBtn]
+      buttons: [
+        Dialog.cancelButton({ ariaLabel: trans.__('Cancel Kernel Restart') }),
+        restartBtn
+      ]
     });
 
     if (kernel.isDisposed) {
@@ -1368,7 +1440,9 @@ export const sessionContextDialogs: ISessionContext.IDialogs = {
     }
     return false;
   }
-};
+
+  private _translator: ITranslator;
+}
 
 /**
  * The namespace for module private data.
@@ -1431,15 +1505,9 @@ namespace Private {
     options: SessionContext.IKernelSearch
   ): string | null {
     const { specs, preference } = options;
-    const {
-      name,
-      language,
-      shouldStart,
-      canStart,
-      autoStartDefault
-    } = preference;
-
-    if (!specs || shouldStart === false || canStart === false) {
+    const { name, language, canStart, autoStartDefault } = preference;
+
+    if (!specs || canStart === false) {
       return null;
     }
 
@@ -1559,7 +1627,7 @@ namespace Private {
     }
 
     // Add an option for no kernel
-    node.appendChild(optionForNone());
+    node.appendChild(optionForNone(translator));
 
     const other = document.createElement('optgroup');
     other.label = trans.__('Start Other Kernel');
@@ -1588,7 +1656,7 @@ namespace Private {
       let selectedIndex = 0;
       if (currentKernelDisplayName) {
         // Select current kernel by default.
-        selectedIndex = Array.from(node.options).findIndex(
+        selectedIndex = [...node.options].findIndex(
           option => option.text === currentKernelDisplayName
         );
         selectedIndex = Math.max(selectedIndex, 0);
@@ -1605,7 +1673,7 @@ namespace Private {
     const matchingSessions: Session.IModel[] = [];
     const otherSessions: Session.IModel[] = [];
 
-    each(sessions, session => {
+    for (const session of sessions) {
       if (
         language &&
         session.kernel &&
@@ -1616,7 +1684,7 @@ namespace Private {
       } else if (session.kernel?.id !== id) {
         otherSessions.push(session);
       }
-    });
+    }
 
     const matching = document.createElement('optgroup');
     matching.label = trans.__('Use Kernel from Preferred Session');
@@ -1627,10 +1695,10 @@ namespace Private {
         return a.path.localeCompare(b.path);
       });
 
-      each(matchingSessions, session => {
+      for (const session of matchingSessions) {
         const name = session.kernel ? displayNames[session.kernel.name] : '';
         matching.appendChild(optionForSession(session, name, translator));
-      });
+      }
     }
 
     const otherSessionsNode = document.createElement('optgroup');
@@ -1642,14 +1710,14 @@ namespace Private {
         return a.path.localeCompare(b.path);
       });
 
-      each(otherSessions, session => {
+      for (const session of otherSessions) {
         const name = session.kernel
           ? displayNames[session.kernel.name] || session.kernel.name
           : '';
         otherSessionsNode.appendChild(
           optionForSession(session, name, translator)
         );
-      });
+      }
     }
   }
 
diff --git a/packages/apputils/src/splash.ts b/packages/apputils/src/splash.ts
deleted file mode 100644
index 64f7c81986bb..000000000000
--- a/packages/apputils/src/splash.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Token } from '@lumino/coreutils';
-import { IDisposable } from '@lumino/disposable';
-
-/* tslint:disable */
-/**
- * The main menu token.
- */
-export const ISplashScreen = new Token<ISplashScreen>(
-  '@jupyterlab/apputils:ISplashScreen'
-);
-/* tslint:enable */
-
-/**
- * The interface for an application splash screen.
- */
-export interface ISplashScreen {
-  /**
-   * Show the application splash screen.
-   *
-   * @param light - Whether to show the light splash screen or the dark one.
-   *
-   * @returns A disposable used to clear the splash screen.
-   */
-  show(light?: boolean): IDisposable;
-}
diff --git a/packages/apputils/src/testutils.ts b/packages/apputils/src/testutils.ts
new file mode 100644
index 000000000000..986aa071dfe8
--- /dev/null
+++ b/packages/apputils/src/testutils.ts
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ServiceManager } from '@jupyterlab/services';
+import { UUID } from '@lumino/coreutils';
+import { SessionContext } from './sessioncontext';
+
+/**
+ * Create a client session object.
+ */
+export async function createSessionContext(
+  options: Partial<SessionContext.IOptions> = {}
+): Promise<SessionContext> {
+  const manager = options.sessionManager ?? Private.getManager().sessions;
+  const specsManager = options.specsManager ?? Private.getManager().kernelspecs;
+
+  await Promise.all([manager.ready, specsManager.ready]);
+  return new SessionContext({
+    sessionManager: manager,
+    specsManager,
+    path: options.path ?? UUID.uuid4(),
+    name: options.name,
+    type: options.type,
+    kernelPreference: options.kernelPreference ?? {
+      shouldStart: true,
+      canStart: true,
+      name: specsManager.specs?.default
+    }
+  });
+}
+
+/**
+ * A namespace for private data.
+ */
+namespace Private {
+  let manager: ServiceManager;
+
+  /**
+   * Get or create the service manager singleton.
+   */
+  export function getManager(): ServiceManager {
+    if (!manager) {
+      manager = new ServiceManager({ standby: 'never' });
+    }
+    return manager;
+  }
+}
diff --git a/packages/apputils/src/thememanager.ts b/packages/apputils/src/thememanager.ts
index 8deb564f7f35..c6feff9c45d7 100644
--- a/packages/apputils/src/thememanager.ts
+++ b/packages/apputils/src/thememanager.ts
@@ -8,13 +8,11 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { each } from '@lumino/algorithm';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import { Dialog, showDialog } from './dialog';
-import { ISplashScreen } from './splash';
-import { IThemeManager } from './tokens';
+import { ISplashScreen, IThemeManager } from './tokens';
 
 /**
  * The number of milliseconds between theme loading attempts.
@@ -81,7 +79,7 @@ export class ThemeManager implements IThemeManager {
    *
    * @param key - A Jupyterlab CSS variable, without the leading '--jp-'.
    *
-   * @return value - The current value of the Jupyterlab CSS variable
+   * @returns value - The current value of the Jupyterlab CSS variable
    */
   getCSS(key: string): string {
     return (
@@ -524,7 +522,9 @@ namespace Private {
    * Fit a widget and all of its children, recursively.
    */
   export function fitAll(widget: Widget): void {
-    each(widget.children(), fitAll);
+    for (const child of widget.children()) {
+      fitAll(child);
+    }
     widget.fit();
   }
 }
diff --git a/packages/apputils/src/tokens.ts b/packages/apputils/src/tokens.ts
index 1b95ff2f4ec2..4a5100e76dd5 100644
--- a/packages/apputils/src/tokens.ts
+++ b/packages/apputils/src/tokens.ts
@@ -2,35 +2,95 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IChangedArgs } from '@jupyterlab/coreutils';
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { Token } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
+import { CommandPalette, Widget } from '@lumino/widgets';
 import { ISessionContext } from './sessioncontext';
 
+/**
+ * The command palette token.
+ */
+export const ICommandPalette = new Token<ICommandPalette>(
+  '@jupyterlab/apputils:ICommandPalette',
+  `A service for the application command palette
+  in the left panel. Use this to add commands to the palette.`
+);
+
+/**
+ * The options for creating a command palette item.
+ */
+export interface IPaletteItem extends CommandPalette.IItemOptions {}
+
+/**
+ * The interface for a Jupyter Lab command palette.
+ */
+export interface ICommandPalette {
+  /**
+   * The placeholder text of the command palette's search input.
+   */
+  placeholder: string;
+
+  /**
+   * Activate the command palette for user input.
+   */
+  activate(): void;
+
+  /**
+   * Add a command item to the command palette.
+   *
+   * @param options - The options for creating the command item.
+   *
+   * @returns A disposable that will remove the item from the palette.
+   */
+  addItem(options: IPaletteItem): IDisposable;
+}
+
+/**
+ * The kernel status indicator model.
+ */
+export const IKernelStatusModel = new Token<IKernelStatusModel>(
+  '@jupyterlab/apputils:IKernelStatusModel',
+  'A service to register kernel session provider to the kernel status indicator.'
+);
+
+/**
+ * Kernel status indicator model.
+ */
+export interface IKernelStatusModel {
+  /**
+   * Add a session context provider.
+   *
+   * A provider will receive the currently active widget and must return the
+   * associated session context if it can or null otherwise.
+   */
+  addSessionProvider: (
+    provider: (widget: Widget | null) => ISessionContext | null
+  ) => void;
+}
+
 /**
  * An interface for the session context dialogs.
  */
 export interface ISessionContextDialogs extends ISessionContext.IDialogs {}
 
-/* tslint:disable */
 /**
  * The session context dialogs token.
  */
 export const ISessionContextDialogs = new Token<ISessionContext.IDialogs>(
-  '@jupyterlab/apputils:ISessionContextDialogs'
+  '@jupyterlab/apputils:ISessionContextDialogs',
+  'A service for handling the session dialogs.'
 );
-/* tslint:enable */
 
-/* tslint:disable */
 /**
  * The theme manager token.
  */
 export const IThemeManager = new Token<IThemeManager>(
-  '@jupyterlab/apputils:IThemeManager'
+  '@jupyterlab/apputils:IThemeManager',
+  'A service for the theme manager for the application. This is used primarily in theme extensions to register new themes.'
 );
-/* tslint:enable */
 
 /**
  * An interface for a theme manager.
@@ -139,46 +199,69 @@ export namespace IThemeManager {
 /**
  * The sanitizer token.
  */
-export const ISanitizer = new Token<ISanitizer>(
-  '@jupyterlab/apputils:ISanitizer'
+export const ISanitizer = new Token<IRenderMime.ISanitizer>(
+  '@jupyterlab/apputils:ISanitizer',
+  'A service for sanitizing HTML strings.'
 );
 
-export interface ISanitizer {
+/**
+ * @deprecated since v4 use {@link IRenderMime.ISanitizer}
+ */
+export type ISanitizer = IRenderMime.ISanitizer;
+
+/**
+ * The namespace for `ISanitizer` related interfaces.
+ */
+export namespace ISanitizer {
   /**
-   * Sanitize an HTML string.
-   *
-   * @param dirty - The dirty text.
-   *
-   * @param options - The optional sanitization options.
+   * The options used to sanitize.
    *
-   * @returns The sanitized string.
+   * @deprecated in v4 use {@link IRenderMime.ISanitizerOptions}
    */
-  sanitize(dirty: string, options?: ISanitizer.IOptions): string;
+  export type IOptions = IRenderMime.ISanitizerOptions;
 }
 
 /**
- * The namespace for `ISanitizer` related interfaces.
+ * The main menu token.
  */
-export namespace ISanitizer {
+export const ISplashScreen = new Token<ISplashScreen>(
+  '@jupyterlab/apputils:ISplashScreen',
+  `A service for the splash screen for the application.
+  Use this if you want to show the splash screen for your own purposes.`
+);
+
+/**
+ * The interface for an application splash screen.
+ */
+export interface ISplashScreen {
   /**
-   * The options used to sanitize.
+   * Show the application splash screen.
+   *
+   * @param light - Whether to show the light splash screen or the dark one.
+   *
+   * @returns A disposable used to clear the splash screen.
    */
-  export interface IOptions {
-    /**
-     * The allowed tags.
-     */
-    allowedTags?: string[];
+  show(light?: boolean): IDisposable;
+}
 
-    /**
-     * The allowed attributes for a given tag.
-     */
-    allowedAttributes?: { [key: string]: string[] };
+/**
+ * The default window resolver token.
+ */
+export const IWindowResolver = new Token<IWindowResolver>(
+  '@jupyterlab/apputils:IWindowResolver',
+  `A service for a window resolver for the
+  application. JupyterLab workspaces are given a name, which are determined using
+  the window resolver. Require this if you want to use the name of the current workspace.`
+);
 
-    /**
-     * The allowed style values for a given tag.
-     */
-    allowedStyles?: { [key: string]: { [key: string]: RegExp[] } };
-  }
+/**
+ * The description of a window name resolver.
+ */
+export interface IWindowResolver {
+  /**
+   * A window name to use as a handle among shared resources.
+   */
+  readonly name: string;
 }
 
 /**
@@ -188,16 +271,7 @@ export namespace ToolbarRegistry {
   /**
    * Interface of item to be inserted in a toolbar
    */
-  export interface IToolbarItem {
-    /**
-     * Unique item name
-     */
-    name: string;
-    /**
-     * Toolbar widget
-     */
-    widget: Widget;
-  }
+  export interface IToolbarItem extends IRenderMime.IToolbarItem {}
 
   /**
    * Interface describing a toolbar item widget
@@ -229,6 +303,20 @@ export namespace ToolbarRegistry {
  * Toolbar widget registry interface
  */
 export interface IToolbarWidgetRegistry {
+  /**
+   * Add a new toolbar item factory
+   *
+   * @param widgetFactory The widget factory name that creates the toolbar
+   * @param toolbarItemName The unique toolbar item
+   * @param factory The factory function that receives the widget containing the toolbar and returns the toolbar widget.
+   * @returns The previously defined factory
+   */
+  addFactory<T extends Widget = Widget>(
+    widgetFactory: string,
+    toolbarItemName: string,
+    factory: (main: T) => Widget
+  ): ((main: T) => Widget) | undefined;
+
   /**
    * Default toolbar item factory
    */
@@ -259,17 +347,26 @@ export interface IToolbarWidgetRegistry {
    * @param toolbarItemName The unique toolbar item
    * @param factory The factory function that receives the widget containing the toolbar and returns the toolbar widget.
    * @returns The previously defined factory
+   *
+   * @deprecated since v4 use `addFactory` instead
    */
   registerFactory<T extends Widget = Widget>(
     widgetFactory: string,
     toolbarItemName: string,
     factory: (main: T) => Widget
   ): ((main: T) => Widget) | undefined;
+
+  /**
+   * A signal emitted when a factory widget has been added.
+   */
+  readonly factoryAdded: ISignal<this, string>;
 }
 
 /**
  * The toolbar registry token.
  */
 export const IToolbarWidgetRegistry = new Token<IToolbarWidgetRegistry>(
-  '@jupyterlab/apputils:IToolbarWidgetRegistry'
+  '@jupyterlab/apputils:IToolbarWidgetRegistry',
+  `A registry for toolbar widgets. Require this
+  if you want to build the toolbar dynamically from a data definition (stored in settings for example).`
 );
diff --git a/packages/apputils/src/toolbar/factory.ts b/packages/apputils/src/toolbar/factory.ts
index 3324c86b5641..252407ab01aa 100644
--- a/packages/apputils/src/toolbar/factory.ts
+++ b/packages/apputils/src/toolbar/factory.ts
@@ -1,12 +1,17 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { IObservableList, ObservableList } from '@jupyterlab/observables';
 import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
-import { findIndex, toArray } from '@lumino/algorithm';
+import { Toolbar } from '@jupyterlab/ui-components';
+import { findIndex } from '@lumino/algorithm';
 import { JSONExt, PartialJSONObject } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 import { Dialog, showDialog } from '../dialog';
 import { IToolbarWidgetRegistry, ToolbarRegistry } from '../tokens';
-import { Toolbar } from './widget';
 
 /**
  * Default toolbar item rank
@@ -98,17 +103,16 @@ async function setToolbarItems(
       // Apply default value as last step to take into account overrides.json
       // The standard toolbars default is [] as the plugin must use
       // `jupyter.lab.toolbars.<factory>` to define its default value.
-      schema.properties![
-        propertyId
-      ].default = SettingRegistry.reconcileToolbarItems(
-        pluginDefaults,
-        schema.properties![propertyId].default as any[],
-        true
-      )!.sort(
-        (a, b) =>
-          (a.rank ?? DEFAULT_TOOLBAR_ITEM_RANK) -
-          (b.rank ?? DEFAULT_TOOLBAR_ITEM_RANK)
-      );
+      schema.properties![propertyId].default =
+        SettingRegistry.reconcileToolbarItems(
+          pluginDefaults,
+          schema.properties![propertyId].default as any[],
+          true
+        )!.sort(
+          (a, b) =>
+            (a.rank ?? DEFAULT_TOOLBAR_ITEM_RANK) -
+            (b.rank ?? DEFAULT_TOOLBAR_ITEM_RANK)
+        );
     }
 
     // Transform the plugin object to return different schema than the default.
@@ -216,9 +220,13 @@ async function setToolbarItems(
         await displayInformation(trans);
       } else {
         if (newItems.length > 0) {
+          // Empty the default values to avoid toolbar settings collisions.
           canonical = null;
-          // This will trigger a settings.changed signal that will update the items
-          await registry.reload(pluginId);
+          const schema = registry.plugins[pluginId]!.schema;
+          schema.properties!.toolbar.default = [];
+
+          // Run again the transformations.
+          await registry.load(pluginId, true);
         }
       }
     }
@@ -295,8 +303,27 @@ export function createToolbarFactory(
       }
     };
 
+    const updateWidget = (
+      registry: IToolbarWidgetRegistry,
+      itemName: string
+    ) => {
+      const itemIndex = Array.from(items).findIndex(
+        item => item.name === itemName
+      );
+      if (itemIndex >= 0) {
+        toolbar.set(itemIndex, {
+          name: itemName,
+          widget: toolbarRegistry.createWidget(
+            factoryName,
+            widget,
+            items.get(itemIndex)
+          )
+        });
+      }
+    };
+
     const toolbar = new ObservableList<ToolbarRegistry.IToolbarItem>({
-      values: toArray(items).map(item => {
+      values: Array.from(items).map(item => {
         return {
           name: item.name,
           widget: toolbarRegistry.createWidget(factoryName, widget, item)
@@ -304,9 +331,14 @@ export function createToolbarFactory(
       })
     });
 
+    // Re-render the widget if a new factory has been added.
+    toolbarRegistry.factoryAdded.connect(updateWidget);
+
     items.changed.connect(updateToolbar);
+
     widget.disposed.connect(() => {
       items.changed.disconnect(updateToolbar);
+      toolbarRegistry.factoryAdded.disconnect(updateWidget);
     });
 
     return toolbar;
@@ -318,24 +350,33 @@ export function createToolbarFactory(
  *
  * @param widget Widget with the toolbar to set
  * @param factory Toolbar items factory
+ * @param toolbar Separated toolbar if widget is a raw widget
  */
 export function setToolbar(
-  widget: Toolbar.IWidgetToolbar,
+  widget: Toolbar.IWidgetToolbar | Widget,
   factory: (
     widget: Widget
   ) =>
     | IObservableList<ToolbarRegistry.IToolbarItem>
-    | ToolbarRegistry.IToolbarItem[]
+    | ToolbarRegistry.IToolbarItem[],
+  toolbar?: Toolbar
 ): void {
-  if (!widget.toolbar) {
-    console.log(`Widget ${widget.id} has no 'toolbar'.`);
+  // @ts-expect-error Widget has no toolbar
+  if (!widget.toolbar && !toolbar) {
+    console.log(
+      `Widget ${widget.id} has no 'toolbar' and no explicit toolbar was provided.`
+    );
     return;
   }
+
+  // @ts-expect-error Widget has no toolbar
+  const toolbar_ = (widget.toolbar as Toolbar) ?? toolbar;
+
   const items = factory(widget);
 
   if (Array.isArray(items)) {
     items.forEach(({ name, widget: item }) => {
-      widget.toolbar!.addItem(name, item);
+      toolbar_.addItem(name, item);
     });
   } else {
     const updateToolbar = (
@@ -345,7 +386,7 @@ export function setToolbar(
       switch (changes.type) {
         case 'add':
           changes.newValues.forEach((item, index) => {
-            widget.toolbar!.insertItem(
+            toolbar_.insertItem(
               changes.newIndex + index,
               item.name,
               item.widget
@@ -357,7 +398,7 @@ export function setToolbar(
             item.widget.parent = null;
           });
           changes.newValues.forEach((item, index) => {
-            widget.toolbar!.insertItem(
+            toolbar_.insertItem(
               changes.newIndex + index,
               item.name,
               item.widget
@@ -376,14 +417,14 @@ export function setToolbar(
 
           changes.newValues.forEach((item, index) => {
             const existingIndex = findIndex(
-              widget.toolbar!.names(),
+              toolbar_.names(),
               name => item.name === name
             );
             if (existingIndex >= 0) {
-              toArray(widget.toolbar!.children())[existingIndex].parent = null;
+              Array.from(toolbar_.children())[existingIndex].parent = null;
             }
 
-            widget.toolbar!.insertItem(
+            toolbar_.insertItem(
               changes.newIndex + index,
               item.name,
               item.widget
@@ -395,7 +436,7 @@ export function setToolbar(
 
     updateToolbar(items, {
       newIndex: 0,
-      newValues: toArray(items),
+      newValues: Array.from(items),
       oldIndex: 0,
       oldValues: [],
       type: 'add'
diff --git a/packages/apputils/src/toolbar/index.ts b/packages/apputils/src/toolbar/index.ts
index 267d80ea5334..5ad44a0754e9 100644
--- a/packages/apputils/src/toolbar/index.ts
+++ b/packages/apputils/src/toolbar/index.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 export * from './factory';
 export * from './registry';
 export * from './widget';
diff --git a/packages/apputils/src/toolbar/registry.ts b/packages/apputils/src/toolbar/registry.ts
index cc4f1e6a7dbf..6cb0613e7623 100644
--- a/packages/apputils/src/toolbar/registry.ts
+++ b/packages/apputils/src/toolbar/registry.ts
@@ -1,8 +1,17 @@
-import { LabIcon } from '@jupyterlab/ui-components';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  CommandToolbarButton,
+  LabIcon,
+  Toolbar
+} from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { Widget } from '@lumino/widgets';
 import { IToolbarWidgetRegistry, ToolbarRegistry } from '../tokens';
-import { CommandToolbarButton, Toolbar } from './widget';
+import { ISignal, Signal } from '@lumino/signaling';
 
 /**
  * Concrete implementation of IToolbarWidgetRegistry interface
@@ -32,6 +41,13 @@ export class ToolbarWidgetRegistry implements IToolbarWidgetRegistry {
     this._defaultFactory = factory;
   }
 
+  /**
+   * A signal emitted when a factory widget has been added.
+   */
+  get factoryAdded(): ISignal<this, string> {
+    return this._factoryAdded;
+  }
+
   /**
    * Create a toolbar item widget
    *
@@ -52,14 +68,14 @@ export class ToolbarWidgetRegistry implements IToolbarWidgetRegistry {
   }
 
   /**
-   * Register a new toolbar item factory
+   * Add a new toolbar item factory
    *
    * @param widgetFactory The widget factory name that creates the toolbar
    * @param toolbarItemName The unique toolbar item
    * @param factory The factory function that receives the widget containing the toolbar and returns the toolbar widget.
    * @returns The previously defined factory
    */
-  registerFactory<T extends Widget = Widget>(
+  addFactory<T extends Widget = Widget>(
     widgetFactory: string,
     toolbarItemName: string,
     factory: (main: T) => Widget
@@ -71,18 +87,36 @@ export class ToolbarWidgetRegistry implements IToolbarWidgetRegistry {
       this._widgets.set(widgetFactory, namespace);
     }
     namespace.set(toolbarItemName, factory);
+    this._factoryAdded.emit(toolbarItemName);
     return oldFactory;
   }
 
+  /**
+   * Register a new toolbar item factory
+   *
+   * @param widgetFactory The widget factory name that creates the toolbar
+   * @param toolbarItemName The unique toolbar item
+   * @param factory The factory function that receives the widget containing the toolbar and returns the toolbar widget.
+   * @returns The previously defined factory
+   *
+   * @deprecated since v4 use `addFactory` instead
+   */
+  registerFactory<T extends Widget = Widget>(
+    widgetFactory: string,
+    toolbarItemName: string,
+    factory: (main: T) => Widget
+  ): ((main: T) => Widget) | undefined {
+    return this.addFactory(widgetFactory, toolbarItemName, factory);
+  }
+
   protected _defaultFactory: (
     widgetFactory: string,
     widget: Widget,
     toolbarItem: ToolbarRegistry.IWidget
   ) => Widget;
-  protected _widgets: Map<
-    string,
-    Map<string, (main: Widget) => Widget>
-  > = new Map<string, Map<string, (main: Widget) => Widget>>();
+  protected _widgets: Map<string, Map<string, (main: Widget) => Widget>> =
+    new Map<string, Map<string, (main: Widget) => Widget>>();
+  protected _factoryAdded = new Signal<this, string>(this);
 }
 
 /**
@@ -109,6 +143,7 @@ export function createDefaultFactory(
           command: tId,
           args: tArgs,
           label: tLabel,
+          caption: tCaption,
           icon: tIcon
         } = toolbarItem;
         const id = tId ?? '';
@@ -122,7 +157,8 @@ export function createDefaultFactory(
           id,
           args,
           icon,
-          label
+          label,
+          caption: tCaption as string
         });
       }
       case 'spacer':
diff --git a/packages/apputils/src/toolbar/widget.tsx b/packages/apputils/src/toolbar/widget.tsx
index b46cb8f6aa84..266c02b25f6b 100644
--- a/packages/apputils/src/toolbar/widget.tsx
+++ b/packages/apputils/src/toolbar/widget.tsx
@@ -7,589 +7,35 @@ import {
   TranslationBundle
 } from '@jupyterlab/translation';
 import {
-  Button,
   circleEmptyIcon,
   circleIcon,
-  classes,
-  ellipsesIcon,
   LabIcon,
   offlineBoltIcon,
+  ReactWidget,
   refreshIcon,
-  stopIcon
+  stopIcon,
+  ToolbarButton,
+  ToolbarButtonComponent,
+  UseSignal
 } from '@jupyterlab/ui-components';
-import { find, IIterator, map, some } from '@lumino/algorithm';
-import { CommandRegistry } from '@lumino/commands';
-import { ReadonlyJSONObject } from '@lumino/coreutils';
-import { Message, MessageLoop } from '@lumino/messaging';
-import { AttachedProperty } from '@lumino/properties';
-import { Layout, PanelLayout, Widget } from '@lumino/widgets';
+import { Widget } from '@lumino/widgets';
 import * as React from 'react';
-import { ISessionContext, sessionContextDialogs } from '../sessioncontext';
+import { ISessionContext, SessionContextDialogs } from '../sessioncontext';
 import { translateKernelStatuses } from '../kernelstatuses';
-import { ReactWidget, UseSignal } from '../vdom';
-import { Throttler } from '@lumino/polling';
-
-/**
- * The class name added to toolbars.
- */
-const TOOLBAR_CLASS = 'jp-Toolbar';
-
-/**
- * Toolbar pop-up opener button name
- */
-const TOOLBAR_OPENER_NAME = 'toolbar-popup-opener';
-
-/**
- * The class name added to toolbar items.
- */
-const TOOLBAR_ITEM_CLASS = 'jp-Toolbar-item';
-
 /**
  * The class name added to toolbar kernel name text.
  */
 const TOOLBAR_KERNEL_NAME_CLASS = 'jp-Toolbar-kernelName';
 
-/**
- * The class name added to toolbar spacer.
- */
-const TOOLBAR_SPACER_CLASS = 'jp-Toolbar-spacer';
-
 /**
  * The class name added to toolbar kernel status icon.
  */
 const TOOLBAR_KERNEL_STATUS_CLASS = 'jp-Toolbar-kernelStatus';
 
-/**
- * A layout for toolbars.
- *
- * #### Notes
- * This layout automatically collapses its height if there are no visible
- * toolbar widgets, and expands to the standard toolbar height if there are
- * visible toolbar widgets.
- */
-class ToolbarLayout extends PanelLayout {
-  /**
-   * A message handler invoked on a `'fit-request'` message.
-   *
-   * If any child widget is visible, expand the toolbar height to the normal
-   * toolbar height.
-   */
-  protected onFitRequest(msg: Message): void {
-    super.onFitRequest(msg);
-    if (this.parent!.isAttached) {
-      // If there are any widgets not explicitly hidden, expand the toolbar to
-      // accommodate them.
-      if (some(this.widgets, w => !w.isHidden)) {
-        this.parent!.node.style.minHeight = 'var(--jp-private-toolbar-height)';
-        this.parent!.removeClass('jp-Toolbar-micro');
-      } else {
-        this.parent!.node.style.minHeight = '';
-        this.parent!.addClass('jp-Toolbar-micro');
-      }
-    }
-
-    // Set the dirty flag to ensure only a single update occurs.
-    this._dirty = true;
-
-    // Notify the ancestor that it should fit immediately. This may
-    // cause a resize of the parent, fulfilling the required update.
-    if (this.parent!.parent) {
-      MessageLoop.sendMessage(this.parent!.parent!, Widget.Msg.FitRequest);
-    }
-
-    // If the dirty flag is still set, the parent was not resized.
-    // Trigger the required update on the parent widget immediately.
-    if (this._dirty) {
-      MessageLoop.sendMessage(this.parent!, Widget.Msg.UpdateRequest);
-    }
-  }
-
-  /**
-   * A message handler invoked on an `'update-request'` message.
-   */
-  protected onUpdateRequest(msg: Message): void {
-    super.onUpdateRequest(msg);
-    if (this.parent!.isVisible) {
-      this._dirty = false;
-    }
-  }
-
-  /**
-   * A message handler invoked on a `'child-shown'` message.
-   */
-  protected onChildShown(msg: Widget.ChildMessage): void {
-    super.onChildShown(msg);
-
-    // Post a fit request for the parent widget.
-    this.parent!.fit();
-  }
-
-  /**
-   * A message handler invoked on a `'child-hidden'` message.
-   */
-  protected onChildHidden(msg: Widget.ChildMessage): void {
-    super.onChildHidden(msg);
-
-    // Post a fit request for the parent widget.
-    this.parent!.fit();
-  }
-
-  /**
-   * A message handler invoked on a `'before-attach'` message.
-   */
-  protected onBeforeAttach(msg: Message): void {
-    super.onBeforeAttach(msg);
-
-    // Post a fit request for the parent widget.
-    this.parent!.fit();
-  }
-
-  /**
-   * Attach a widget to the parent's DOM node.
-   *
-   * @param index - The current index of the widget in the layout.
-   *
-   * @param widget - The widget to attach to the parent.
-   *
-   * #### Notes
-   * This is a reimplementation of the superclass method.
-   */
-  protected attachWidget(index: number, widget: Widget): void {
-    super.attachWidget(index, widget);
-
-    // Post a fit request for the parent widget.
-    this.parent!.fit();
-  }
-
-  /**
-   * Detach a widget from the parent's DOM node.
-   *
-   * @param index - The previous index of the widget in the layout.
-   *
-   * @param widget - The widget to detach from the parent.
-   *
-   * #### Notes
-   * This is a reimplementation of the superclass method.
-   */
-  protected detachWidget(index: number, widget: Widget): void {
-    super.detachWidget(index, widget);
-
-    // Post a fit request for the parent widget.
-    this.parent!.fit();
-  }
-
-  private _dirty = false;
-}
-
-/**
- * A class which provides a toolbar widget.
- */
-export class Toolbar<T extends Widget = Widget> extends Widget {
-  /**
-   * Construct a new toolbar widget.
-   */
-  constructor(options: Toolbar.IOptions = {}) {
-    super();
-    this.addClass(TOOLBAR_CLASS);
-    this.layout = options.layout ?? new ToolbarLayout();
-  }
-
-  /**
-   * Get an iterator over the ordered toolbar item names.
-   *
-   * @returns An iterator over the toolbar item names.
-   */
-  names(): IIterator<string> {
-    const layout = this.layout as ToolbarLayout;
-    return map(layout.widgets, widget => {
-      return Private.nameProperty.get(widget);
-    });
-  }
-
-  /**
-   * Add an item to the end of the toolbar.
-   *
-   * @param name - The name of the widget to add to the toolbar.
-   *
-   * @param widget - The widget to add to the toolbar.
-   *
-   * @param index - The optional name of the item to insert after.
-   *
-   * @returns Whether the item was added to toolbar.  Returns false if
-   *   an item of the same name is already in the toolbar.
-   *
-   * #### Notes
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  addItem(name: string, widget: T): boolean {
-    const layout = this.layout as ToolbarLayout;
-    return this.insertItem(layout.widgets.length, name, widget);
-  }
-
-  /**
-   * Insert an item into the toolbar at the specified index.
-   *
-   * @param index - The index at which to insert the item.
-   *
-   * @param name - The name of the item.
-   *
-   * @param widget - The widget to add.
-   *
-   * @returns Whether the item was added to the toolbar. Returns false if
-   *   an item of the same name is already in the toolbar.
-   *
-   * #### Notes
-   * The index will be clamped to the bounds of the items.
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  insertItem(index: number, name: string, widget: T): boolean {
-    const existing = find(this.names(), value => value === name);
-    if (existing) {
-      return false;
-    }
-    widget.addClass(TOOLBAR_ITEM_CLASS);
-    const layout = this.layout as ToolbarLayout;
-
-    const j = Math.max(0, Math.min(index, layout.widgets.length));
-    layout.insertWidget(j, widget);
-
-    Private.nameProperty.set(widget, name);
-    return true;
-  }
-
-  /**
-   * Insert an item into the toolbar at the after a target item.
-   *
-   * @param at - The target item to insert after.
-   *
-   * @param name - The name of the item.
-   *
-   * @param widget - The widget to add.
-   *
-   * @returns Whether the item was added to the toolbar. Returns false if
-   *   an item of the same name is already in the toolbar.
-   *
-   * #### Notes
-   * The index will be clamped to the bounds of the items.
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  insertAfter(at: string, name: string, widget: T): boolean {
-    return this._insertRelative(at, 1, name, widget);
-  }
-
-  /**
-   * Insert an item into the toolbar at the before a target item.
-   *
-   * @param at - The target item to insert before.
-   *
-   * @param name - The name of the item.
-   *
-   * @param widget - The widget to add.
-   *
-   * @returns Whether the item was added to the toolbar. Returns false if
-   *   an item of the same name is already in the toolbar.
-   *
-   * #### Notes
-   * The index will be clamped to the bounds of the items.
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  insertBefore(at: string, name: string, widget: T): boolean {
-    return this._insertRelative(at, 0, name, widget);
-  }
-
-  private _insertRelative(
-    at: string,
-    offset: number,
-    name: string,
-    widget: T
-  ): boolean {
-    const nameWithIndex = map(this.names(), (name, i) => {
-      return { name: name, index: i };
-    });
-    const target = find(nameWithIndex, x => x.name === at);
-    if (target) {
-      return this.insertItem(target.index + offset, name, widget);
-    }
-    return false;
-  }
-
-  /**
-   * Handle the DOM events for the widget.
-   *
-   * @param event - The DOM event sent to the widget.
-   *
-   * #### Notes
-   * This method implements the DOM `EventListener` interface and is
-   * called in response to events on the dock panel's node. It should
-   * not be called directly by user code.
-   */
-  handleEvent(event: Event): void {
-    switch (event.type) {
-      case 'click':
-        this.handleClick(event);
-        break;
-      default:
-        break;
-    }
-  }
-
-  /**
-   * Handle a DOM click event.
-   */
-  protected handleClick(event: Event): void {
-    // Stop propagating the click outside the toolbar
-    event.stopPropagation();
-
-    // Clicking a label focuses the corresponding control
-    // that is linked with `for` attribute, so let it be.
-    if (event.target instanceof HTMLLabelElement) {
-      const forId = event.target.getAttribute('for');
-      if (forId && this.node.querySelector(`#${forId}`)) {
-        return;
-      }
-    }
-
-    // If this click already focused a control, let it be.
-    if (this.node.contains(document.activeElement)) {
-      return;
-    }
-
-    // Otherwise, activate the parent widget, which may take focus if desired.
-    if (this.parent) {
-      this.parent.activate();
-    }
-  }
-
-  /**
-   * Handle `after-attach` messages for the widget.
-   */
-  protected onAfterAttach(msg: Message): void {
-    this.node.addEventListener('click', this);
-  }
-
-  /**
-   * Handle `before-detach` messages for the widget.
-   */
-  protected onBeforeDetach(msg: Message): void {
-    this.node.removeEventListener('click', this);
-  }
-}
-
-/**
- * A class which provides a toolbar widget.
- */
-export class ReactiveToolbar extends Toolbar<Widget> {
-  /**
-   * Construct a new toolbar widget.
-   */
-  constructor() {
-    super();
-    this.insertItem(0, TOOLBAR_OPENER_NAME, this.popupOpener);
-    this.popupOpener.hide();
-    this._resizer = new Throttler(this._onResize.bind(this), 500);
-  }
-
-  /**
-   * Dispose of the widget and its descendant widgets.
-   */
-  dispose(): void {
-    if (this.isDisposed) {
-      return;
-    }
-
-    if (this._resizer) {
-      this._resizer.dispose();
-    }
-
-    super.dispose();
-  }
-
-  /**
-   * Insert an item into the toolbar at the after a target item.
-   *
-   * @param at - The target item to insert after.
-   *
-   * @param name - The name of the item.
-   *
-   * @param widget - The widget to add.
-   *
-   * @returns Whether the item was added to the toolbar. Returns false if
-   *   an item of the same name is already in the toolbar or if the target
-   *   is the toolbar pop-up opener.
-   *
-   * #### Notes
-   * The index will be clamped to the bounds of the items.
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  insertAfter(at: string, name: string, widget: Widget): boolean {
-    if (at === TOOLBAR_OPENER_NAME) {
-      return false;
-    }
-    return super.insertAfter(at, name, widget);
-  }
-
-  /**
-   * Insert an item into the toolbar at the specified index.
-   *
-   * @param index - The index at which to insert the item.
-   *
-   * @param name - The name of the item.
-   *
-   * @param widget - The widget to add.
-   *
-   * @returns Whether the item was added to the toolbar. Returns false if
-   *   an item of the same name is already in the toolbar.
-   *
-   * #### Notes
-   * The index will be clamped to the bounds of the items.
-   * The item can be removed from the toolbar by setting its parent to `null`.
-   */
-  insertItem(index: number, name: string, widget: Widget): boolean {
-    if (widget instanceof ToolbarPopupOpener) {
-      return super.insertItem(index, name, widget);
-    } else {
-      const j = Math.max(
-        0,
-        Math.min(index, (this.layout as ToolbarLayout).widgets.length - 1)
-      );
-      return super.insertItem(j, name, widget);
-    }
-  }
-
-  /**
-   * A message handler invoked on a `'before-hide'` message.
-   *
-   * It will hide the pop-up panel
-   */
-  onBeforeHide(msg: Message): void {
-    this.popupOpener.hidePopup();
-    super.onBeforeHide(msg);
-  }
-
-  protected onResize(msg: Widget.ResizeMessage): void {
-    super.onResize(msg);
-    if (msg.width > 0 && this._resizer) {
-      void this._resizer.invoke();
-    }
-  }
-
-  private _onResize() {
-    if (this.parent && this.parent.isAttached) {
-      const toolbarWidth = this.node.clientWidth;
-      const opener = this.popupOpener;
-      const openerWidth = 30;
-      const toolbarPadding = 2;
-      const layout = this.layout as ToolbarLayout;
-
-      let width = opener.isHidden
-        ? toolbarPadding
-        : toolbarPadding + openerWidth;
-      let index = 0;
-      const widgetsToRemove = [];
-      const toIndex = layout.widgets.length - 1;
-
-      while (index < toIndex) {
-        const widget = layout.widgets[index];
-        this._saveWidgetWidth(widget);
-        width += this._getWidgetWidth(widget);
-        if (
-          widgetsToRemove.length === 0 &&
-          opener.isHidden &&
-          width + openerWidth > toolbarWidth
-        ) {
-          width += openerWidth;
-        }
-        if (width > toolbarWidth) {
-          widgetsToRemove.push(widget);
-        }
-        index++;
-      }
-
-      while (widgetsToRemove.length > 0) {
-        const widget = widgetsToRemove.pop() as Widget;
-        width -= this._getWidgetWidth(widget);
-        opener.addWidget(widget);
-      }
-
-      if (opener.widgetCount() > 0) {
-        const widgetsToAdd = [];
-        let index = 0;
-        let widget = opener.widgetAt(index);
-        const widgetCount = opener.widgetCount();
-
-        width += this._getWidgetWidth(widget);
-
-        if (widgetCount === 1 && width - openerWidth <= toolbarWidth) {
-          width -= openerWidth;
-        }
-
-        while (width < toolbarWidth && index < widgetCount) {
-          widgetsToAdd.push(widget);
-          index++;
-          widget = opener.widgetAt(index);
-          if (widget) {
-            width += this._getWidgetWidth(widget);
-          } else {
-            break;
-          }
-        }
-
-        while (widgetsToAdd.length > 0) {
-          const widget = widgetsToAdd.shift()!;
-          this.addItem(Private.nameProperty.get(widget), widget);
-        }
-      }
-
-      if (opener.widgetCount() > 0) {
-        opener.updatePopup();
-        opener.show();
-      } else {
-        opener.hide();
-      }
-    }
-  }
-
-  private _saveWidgetWidth(widget: Widget) {
-    const widgetName = Private.nameProperty.get(widget);
-    this._widgetWidths![widgetName] = widget.hasClass(TOOLBAR_SPACER_CLASS)
-      ? 2
-      : widget.node.clientWidth;
-  }
-
-  private _getWidgetWidth(widget: Widget): number {
-    const widgetName = Private.nameProperty.get(widget);
-    return this._widgetWidths![widgetName];
-  }
-
-  protected readonly popupOpener: ToolbarPopupOpener = new ToolbarPopupOpener();
-  private readonly _widgetWidths: { [key: string]: number } = {};
-  private readonly _resizer: Throttler;
-}
-
 /**
  * The namespace for Toolbar class statics.
  */
 export namespace Toolbar {
-  /**
-   * The options used to create a toolbar.
-   */
-  export interface IOptions {
-    /**
-     * Toolbar widget layout.
-     */
-    layout?: Layout;
-  }
-
-  /**
-   * Widget with associated toolbar
-   */
-  export interface IWidgetToolbar extends Widget {
-    /**
-     * Toolbar of actions on the widget
-     */
-    toolbar?: Toolbar;
-  }
-
   /**
    * Create an interrupt toolbar item.
    *
@@ -622,31 +68,19 @@ export namespace Toolbar {
     dialogs?: ISessionContext.IDialogs,
     translator?: ITranslator
   ): Widget {
-    translator = translator || nullTranslator;
+    translator = translator ?? nullTranslator;
     const trans = translator.load('jupyterlab');
     return new ToolbarButton({
       icon: refreshIcon,
       onClick: () => {
-        void (dialogs ?? sessionContextDialogs).restart(
-          sessionContext,
-          translator
+        void (dialogs ?? new SessionContextDialogs({ translator })).restart(
+          sessionContext
         );
       },
       tooltip: trans.__('Restart the kernel')
     });
   }
 
-  /**
-   * Create a toolbar spacer item.
-   *
-   * #### Notes
-   * It is a flex spacer that separates the left toolbar items
-   * from the right toolbar items.
-   */
-  export function createSpacerItem(): Widget {
-    return new Private.Spacer();
-  }
-
   /**
    * Create a kernel name indicator item.
    *
@@ -662,7 +96,7 @@ export namespace Toolbar {
     const el = ReactWidget.create(
       <Private.KernelNameComponent
         sessionContext={sessionContext}
-        dialogs={dialogs ?? sessionContextDialogs}
+        dialogs={dialogs ?? new SessionContextDialogs({ translator })}
         translator={translator}
       />
     );
@@ -689,552 +123,10 @@ export namespace Toolbar {
   }
 }
 
-/**
- * Namespace for ToolbarButtonComponent.
- */
-export namespace ToolbarButtonComponent {
-  /**
-   * Interface for ToolbarButtonComponent props.
-   */
-  export interface IProps {
-    className?: string;
-    /**
-     * Data set of the button
-     */
-    dataset?: DOMStringMap;
-    label?: string;
-    icon?: LabIcon.IMaybeResolvable;
-    iconClass?: string;
-    iconLabel?: string;
-    tooltip?: string;
-    onClick?: () => void;
-    enabled?: boolean;
-    pressed?: boolean;
-    pressedIcon?: LabIcon.IMaybeResolvable;
-    pressedTooltip?: string;
-    disabledTooltip?: string;
-
-    /**
-     * Trigger the button on the actual onClick event rather than onMouseDown.
-     *
-     * See note in ToolbarButtonComponent below as to why the default is to
-     * trigger on onMouseDown.
-     */
-    actualOnClick?: boolean;
-
-    /**
-     * The application language translator.
-     */
-    translator?: ITranslator;
-  }
-}
-
-/**
- * React component for a toolbar button.
- *
- * @param props - The props for ToolbarButtonComponent.
- */
-export function ToolbarButtonComponent(
-  props: ToolbarButtonComponent.IProps
-): JSX.Element {
-  // In some browsers, a button click event moves the focus from the main
-  // content to the button (see https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#Clicking_and_focus).
-  // We avoid a click event by calling preventDefault in mousedown, and
-  // we bind the button action to `mousedown`.
-  const handleMouseDown = (event: React.MouseEvent) => {
-    // Fire action only when left button is pressed.
-    if (event.button === 0) {
-      event.preventDefault();
-      props.onClick?.();
-    }
-  };
-
-  const handleKeyDown = (event: React.KeyboardEvent) => {
-    const { key } = event;
-    if (key === 'Enter' || key === ' ') {
-      props.onClick?.();
-    }
-  };
-
-  const handleClick = (event: React.MouseEvent) => {
-    if (event.button === 0) {
-      props.onClick?.();
-    }
-  };
-
-  const getTooltip = () => {
-    if (props.enabled === false && props.disabledTooltip) {
-      return props.disabledTooltip;
-    } else if (props.pressed && props.pressedTooltip) {
-      return props.pressedTooltip;
-    } else {
-      return props.tooltip || props.iconLabel;
-    }
-  };
-
-  return (
-    <Button
-      className={
-        props.className
-          ? props.className + ' jp-ToolbarButtonComponent'
-          : 'jp-ToolbarButtonComponent'
-      }
-      aria-pressed={props.pressed}
-      aria-disabled={props.enabled === false}
-      {...props.dataset}
-      disabled={props.enabled === false}
-      onClick={props.actualOnClick ?? false ? handleClick : undefined}
-      onMouseDown={
-        !(props.actualOnClick ?? false) ? handleMouseDown : undefined
-      }
-      onKeyDown={handleKeyDown}
-      title={getTooltip()}
-      minimal
-    >
-      {(props.icon || props.iconClass) && (
-        <LabIcon.resolveReact
-          icon={props.pressed ? props.pressedIcon : props.icon}
-          iconClass={
-            // add some extra classes for proper support of icons-as-css-background
-            classes(props.iconClass, 'jp-Icon')
-          }
-          className="jp-ToolbarButtonComponent-icon"
-          tag="span"
-          stylesheet="toolbarButton"
-        />
-      )}
-      {props.label && (
-        <span className="jp-ToolbarButtonComponent-label">{props.label}</span>
-      )}
-    </Button>
-  );
-}
-
-/**
- * Adds the toolbar button class to the toolbar widget.
- * @param w Toolbar button widget.
- */
-export function addToolbarButtonClass(w: Widget): Widget {
-  w.addClass('jp-ToolbarButton');
-  return w;
-}
-
-/**
- * Phosphor Widget version of static ToolbarButtonComponent.
- */
-export class ToolbarButton extends ReactWidget {
-  /**
-   * Creates a toolbar button
-   * @param props props for underlying `ToolbarButton` component
-   */
-  constructor(private props: ToolbarButtonComponent.IProps = {}) {
-    super();
-    addToolbarButtonClass(this);
-    this._enabled = props.enabled ?? true;
-    this._pressed = this._enabled! && (props.pressed ?? false);
-    this._onClick = props.onClick!;
-  }
-
-  /**
-   * Sets the pressed state for the button
-   * @param value true if button is pressed, false otherwise
-   */
-  set pressed(value: boolean) {
-    if (this.enabled && value !== this._pressed) {
-      this._pressed = value;
-      this.update();
-    }
-  }
-
-  /**
-   * Returns true if button is pressed, false otherwise
-   */
-  get pressed(): boolean {
-    return this._pressed!;
-  }
-
-  /**
-   * Sets the enabled state for the button
-   * @param value true to enable the button, false otherwise
-   */
-  set enabled(value: boolean) {
-    if (value != this._enabled) {
-      this._enabled = value;
-      if (!this._enabled) {
-        this._pressed = false;
-      }
-      this.update();
-    }
-  }
-
-  /**
-   * Returns true if button is enabled, false otherwise
-   */
-  get enabled(): boolean {
-    return this._enabled;
-  }
-
-  /**
-   * Sets the click handler for the button
-   * @param value click handler
-   */
-  set onClick(value: () => void) {
-    if (value !== this._onClick) {
-      this._onClick = value;
-      this.update();
-    }
-  }
-
-  /**
-   * Returns the click handler for the button
-   */
-  get onClick() {
-    return this._onClick!;
-  }
-
-  render(): JSX.Element {
-    return (
-      <ToolbarButtonComponent
-        {...this.props}
-        pressed={this.pressed}
-        enabled={this.enabled}
-        onClick={this.onClick}
-      />
-    );
-  }
-
-  private _pressed: boolean;
-  private _enabled: boolean;
-  private _onClick: () => void;
-}
-
-/**
- * Namespace for CommandToolbarButtonComponent.
- */
-export namespace CommandToolbarButtonComponent {
-  /**
-   * Interface for CommandToolbarButtonComponent props.
-   */
-  export interface IProps {
-    /**
-     * Application commands registry
-     */
-    commands: CommandRegistry;
-    /**
-     * Command unique id
-     */
-    id: string;
-    /**
-     * Command arguments
-     */
-    args?: ReadonlyJSONObject;
-    /**
-     * Overrides command icon
-     */
-    icon?: LabIcon;
-    /**
-     * Overrides command label
-     */
-    label?: string;
-  }
-}
-
-/**
- * React component for a toolbar button that wraps a command.
- *
- * This wraps the ToolbarButtonComponent and watches the command registry
- * for changes to the command.
- */
-export function CommandToolbarButtonComponent(
-  props: CommandToolbarButtonComponent.IProps
-) {
-  return (
-    <UseSignal
-      signal={props.commands.commandChanged}
-      shouldUpdate={(sender, args) =>
-        (args.id === props.id && args.type === 'changed') ||
-        args.type === 'many-changed'
-      }
-    >
-      {() => <ToolbarButtonComponent {...Private.propsFromCommand(props)} />}
-    </UseSignal>
-  );
-}
-
-/*
- * Adds the command toolbar button class to the command toolbar widget.
- * @param w Command toolbar button widget.
- */
-export function addCommandToolbarButtonClass(w: Widget): Widget {
-  w.addClass('jp-CommandToolbarButton');
-  return w;
-}
-
-/**
- * Phosphor Widget version of CommandToolbarButtonComponent.
- */
-export class CommandToolbarButton extends ReactWidget {
-  /**
-   * Creates a command toolbar button
-   * @param props props for underlying `CommandToolbarButtonComponent` component
-   */
-  constructor(private props: CommandToolbarButtonComponent.IProps) {
-    super();
-    addCommandToolbarButtonClass(this);
-  }
-  render(): JSX.Element {
-    return <CommandToolbarButtonComponent {...this.props} />;
-  }
-}
-
-/**
- *  A class which provides a toolbar popup
- *  used to store widgets that don't fit
- *  in the toolbar when it is resized
- */
-class ToolbarPopup extends Widget {
-  width: number = 0;
-
-  /**
-   *  Construct a new ToolbarPopup
-   */
-  constructor() {
-    super();
-    this.addClass('jp-Toolbar-responsive-popup');
-    this.layout = new PanelLayout();
-    Widget.attach(this, document.body);
-    this.hide();
-  }
-
-  /**
-   * Updates the width of the popup, this
-   * should match with the toolbar width
-   *
-   * @param width - The width to resize to
-   * @protected
-   */
-  updateWidth(width: number) {
-    if (width > 0) {
-      this.width = width;
-      this.node.style.width = `${width}px`;
-    }
-  }
-
-  /**
-   * Aligns the popup to left bottom of widget
-   *
-   * @param widget the widget to align to
-   * @private
-   */
-  alignTo(widget: Widget) {
-    const {
-      height: widgetHeight,
-      width: widgetWidth,
-      x: widgetX,
-      y: widgetY
-    } = widget.node.getBoundingClientRect();
-    const width = this.width;
-    this.node.style.left = `${widgetX + widgetWidth - width + 1}px`;
-    this.node.style.top = `${widgetY + widgetHeight + 1}px`;
-  }
-
-  /**
-   * Inserts the widget at specified index
-   * @param index the index
-   * @param widget widget to add
-   */
-  insertWidget(index: number, widget: Widget) {
-    (this.layout as PanelLayout).insertWidget(0, widget);
-  }
-
-  /**
-   *  Total number of widgets in the popup
-   */
-  widgetCount() {
-    return (this.layout as PanelLayout).widgets.length;
-  }
-
-  /**
-   * Returns the widget at index
-   * @param index the index
-   */
-  widgetAt(index: number) {
-    return (this.layout as PanelLayout).widgets[index];
-  }
-}
-
-/**
- *  A class that provides a ToolbarPopupOpener,
- *  which is a button added to toolbar when
- *  the toolbar items overflow toolbar width
- */
-class ToolbarPopupOpener extends ToolbarButton {
-  /**
-   *  Create a new popup opener
-   */
-  constructor() {
-    super({
-      icon: ellipsesIcon,
-      onClick: () => {
-        this.handleClick();
-      }
-    });
-    this.addClass('jp-Toolbar-responsive-opener');
-    this.popup = new ToolbarPopup();
-  }
-
-  /**
-   * Add widget to the popup, prepends widgets
-   * @param widget the widget to add
-   */
-  addWidget(widget: Widget) {
-    this.popup.insertWidget(0, widget);
-  }
-
-  /**
-   * Dispose of the widget and its descendant widgets.
-   *
-   * #### Notes
-   * It is unsafe to use the widget after it has been disposed.
-   *
-   * All calls made to this method after the first are a no-op.
-   */
-  dispose(): void {
-    if (this.isDisposed) {
-      return;
-    }
-    this.popup.dispose();
-    super.dispose();
-  }
-
-  /**
-   * Hides the opener and the popup
-   */
-  hide(): void {
-    super.hide();
-    this.hidePopup();
-  }
-
-  /**
-   * Hides the popup
-   */
-  hidePopup(): void {
-    this.popup.hide();
-  }
-
-  /**
-   *  Updates width and position of the popup
-   *  to align with the toolbar
-   */
-  updatePopup(): void {
-    this.popup.updateWidth(this.parent!.node.clientWidth);
-    this.popup.alignTo(this.parent!);
-  }
-
-  /**
-   * Returns widget at index in the popup
-   * @param index
-   */
-  widgetAt(index: number) {
-    return this.popup.widgetAt(index);
-  }
-
-  /**
-   * Returns total number of widgets in the popup
-   *
-   * @returns Number of widgets
-   */
-  widgetCount(): number {
-    return this.popup.widgetCount();
-  }
-
-  protected handleClick() {
-    this.updatePopup();
-    this.popup.setHidden(!this.popup.isHidden);
-  }
-
-  protected popup: ToolbarPopup;
-}
-
 /**
  * A namespace for private data.
  */
 namespace Private {
-  export function propsFromCommand(
-    options: CommandToolbarButtonComponent.IProps
-  ): ToolbarButtonComponent.IProps {
-    const { commands, id, args } = options;
-
-    const iconClass = commands.iconClass(id, args);
-    const iconLabel = commands.iconLabel(id, args);
-    // DEPRECATED: remove _icon when lumino 2.0 is adopted
-    // if icon is aliasing iconClass, don't use it
-    const _icon = options.icon ?? commands.icon(id, args);
-    const icon = _icon === iconClass ? undefined : _icon;
-
-    const label = commands.label(id, args);
-    let className = commands.className(id, args);
-    // Add the boolean state classes.
-    if (commands.isToggled(id, args)) {
-      className += ' lm-mod-toggled';
-    }
-    if (!commands.isVisible(id, args)) {
-      className += ' lm-mod-hidden';
-    }
-
-    let tooltip =
-      commands.caption(id, args) || options.label || label || iconLabel;
-    // Shows hot keys in tooltips
-    const binding = commands.keyBindings.find(b => b.command === id);
-    if (binding) {
-      const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
-      tooltip = `${tooltip} (${ks})`;
-    }
-    const onClick = () => {
-      void commands.execute(id, args);
-    };
-    const enabled = commands.isEnabled(id, args);
-
-    return {
-      className,
-      dataset: { 'data-command': options.id },
-      icon,
-      iconClass,
-      tooltip,
-      onClick,
-      enabled,
-      label: options.label ?? label
-    };
-  }
-
-  /**
-   * An attached property for the name of a toolbar item.
-   */
-  export const nameProperty = new AttachedProperty<Widget, string>({
-    name: 'name',
-    create: () => ''
-  });
-
-  /**
-   * A no-op function.
-   */
-  export function noOp() {
-    /* no-op */
-  }
-
-  /**
-   * A spacer widget.
-   */
-  export class Spacer extends Widget {
-    /**
-     * Construct a new spacer widget.
-     */
-    constructor() {
-      super();
-      this.addClass(TOOLBAR_SPACER_CLASS);
-    }
-  }
-
   /**
    * Namespace for KernelNameComponent.
    */
@@ -1256,11 +148,13 @@ namespace Private {
    * session for changes.
    */
 
-  export function KernelNameComponent(props: KernelNameComponent.IProps) {
+  export function KernelNameComponent(
+    props: KernelNameComponent.IProps
+  ): JSX.Element {
     const translator = props.translator || nullTranslator;
     const trans = translator.load('jupyterlab');
     const callback = () => {
-      void props.dialogs.selectKernel(props.sessionContext, translator);
+      void props.dialogs.selectKernel(props.sessionContext);
     };
     return (
       <UseSignal
diff --git a/packages/apputils/src/widgettracker.ts b/packages/apputils/src/widgettracker.ts
index 24526c29fcd9..7711d03fa774 100644
--- a/packages/apputils/src/widgettracker.ts
+++ b/packages/apputils/src/widgettracker.ts
@@ -110,7 +110,8 @@ export interface IWidgetTracker<T extends Widget = Widget> extends IDisposable {
  * internally by plugins to restore state as well.
  */
 export class WidgetTracker<T extends Widget = Widget>
-  implements IWidgetTracker<T>, IRestorable<T> {
+  implements IWidgetTracker<T>, IRestorable<T>
+{
   /**
    * Create a new widget tracker.
    *
diff --git a/packages/apputils/src/windowresolver.ts b/packages/apputils/src/windowresolver.ts
index fdb96648d098..ec687dd9a4de 100644
--- a/packages/apputils/src/windowresolver.ts
+++ b/packages/apputils/src/windowresolver.ts
@@ -1,26 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { PromiseDelegate, Token } from '@lumino/coreutils';
-
-/* tslint:disable */
-/**
- * The default window resolver token.
- */
-export const IWindowResolver = new Token<IWindowResolver>(
-  '@jupyterlab/apputils:IWindowResolver'
-);
-/* tslint:enable */
-
-/**
- * The description of a window name resolver.
- */
-export interface IWindowResolver {
-  /**
-   * A window name to use as a handle among shared resources.
-   */
-  readonly name: string;
-}
+import { PromiseDelegate } from '@lumino/coreutils';
+import { IWindowResolver } from './tokens';
 
 /**
  * A concrete implementation of a window name resolver.
diff --git a/packages/apputils/style/base.css b/packages/apputils/style/base.css
index 180bcdb952e0..4da2a29b3856 100644
--- a/packages/apputils/style/base.css
+++ b/packages/apputils/style/base.css
@@ -4,14 +4,8 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-@import './collapse.css';
 @import './commandpalette.css';
 @import './dialog.css';
-@import './hoverbox.css';
-@import './iframe.css';
 @import './inputdialog.css';
 @import './mainareawidget.css';
 @import './materialcolors.css';
-@import './spinner.css';
-@import './styling.css';
-@import './toolbar.css';
diff --git a/packages/apputils/style/commandpalette.css b/packages/apputils/style/commandpalette.css
index d4740a0baefd..2229f1840c2d 100644
--- a/packages/apputils/style/commandpalette.css
+++ b/packages/apputils/style/commandpalette.css
@@ -16,9 +16,10 @@
 |----------------------------------------------------------------------------*/
 
 .lm-CommandPalette {
-  padding-bottom: 0px;
+  padding-bottom: 0;
   color: var(--jp-ui-font-color1);
   background: var(--jp-layout-color1);
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
@@ -75,15 +76,17 @@
 }
 
 .lm-CommandPalette-wrapper {
+  /* stylelint-disable-next-line csstree/validator */
   overflow: overlay;
-  padding: 0px 9px;
+  padding: 0 9px;
   background-color: var(--jp-input-active-background);
   height: 30px;
   box-shadow: inset 0 0 0 var(--jp-border-width) var(--jp-input-border-color);
 }
 
 .lm-CommandPalette.lm-mod-focused .lm-CommandPalette-wrapper {
-  box-shadow: inset 0 0 0 1px var(--jp-input-active-box-shadow-color),
+  box-shadow:
+    inset 0 0 0 1px var(--jp-input-active-box-shadow-color),
     inset 0 0 0 3px var(--jp-input-active-box-shadow-color);
 }
 
@@ -93,7 +96,7 @@
   position: absolute;
   top: 4px;
   right: 4px;
-  padding: 5px 5px 1px 5px;
+  padding: 5px 5px 1px;
 }
 
 .jp-SearchIconGroup svg {
@@ -128,7 +131,7 @@
 |----------------------------------------------------------------------------*/
 
 .lm-CommandPalette-header:first-child {
-  margin-top: 0px;
+  margin-top: 0;
 }
 
 .lm-CommandPalette-header {
@@ -179,10 +182,6 @@
   fill: var(--jp-layout-color0);
 }
 
-.lm-CommandPalette-item.lm-mod-active .lm-CommandPalette-itemLabel > mark {
-  color: var(--jp-ui-inverse-font-color0);
-}
-
 .lm-CommandPalette-item.lm-mod-active:hover:not(.lm-mod-disabled) {
   color: var(--jp-ui-inverse-font-color1);
   background: var(--jp-brand-color1);
@@ -230,7 +229,7 @@
   background-color: var(--jp-layout-color1);
 }
 
-.lm-CommandPalette-content:empty:after {
+.lm-CommandPalette-content:empty::after {
   content: 'No results';
   margin: auto;
   margin-top: 20px;
@@ -245,6 +244,6 @@
   text-align: center;
   margin-top: 24px;
   line-height: 1.32;
-  padding: 0px 8px;
+  padding: 0 8px;
   color: var(--jp-content-font-color3);
 }
diff --git a/packages/apputils/style/dialog.css b/packages/apputils/style/dialog.css
index 68e4f5c663ee..461be60c5bbc 100644
--- a/packages/apputils/style/dialog.css
+++ b/packages/apputils/style/dialog.css
@@ -11,8 +11,8 @@
   flex-direction: column;
   align-items: center;
   justify-content: center;
-  top: 0px;
-  left: 0px;
+  top: 0;
+  left: 0;
   margin: 0;
   padding: 0;
   width: 100%;
@@ -26,7 +26,7 @@
   margin-left: auto;
   margin-right: auto;
   background: var(--jp-layout-color1);
-  padding: 24px 24px 12px 24px;
+  padding: 24px 24px 12px;
   min-width: 300px;
   min-height: 150px;
   max-width: 1000px;
@@ -35,6 +35,7 @@
   box-shadow: var(--jp-elevation-z20);
   word-wrap: break-word;
   border-radius: var(--jp-border-radius);
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
@@ -53,7 +54,7 @@
 button.jp-Dialog-button:focus {
   outline: 1px solid var(--jp-brand-color1);
   outline-offset: 4px;
-  -moz-outline-radius: 0px;
+  -moz-outline-radius: 0;
 }
 
 button.jp-Dialog-button:focus::-moz-focus-inner {
@@ -64,19 +65,19 @@ button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus,
 button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus,
 button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus {
   outline-offset: 4px;
-  -moz-outline-radius: 0px;
+  -moz-outline-radius: 0;
 }
 
 button.jp-Dialog-button.jp-mod-styled.jp-mod-accept:focus {
-  outline: 1px solid var(--md-blue-700);
+  outline: 1px solid var(--jp-accept-color-normal, var(--jp-brand-color1));
 }
 
 button.jp-Dialog-button.jp-mod-styled.jp-mod-warn:focus {
-  outline: 1px solid var(--md-red-600);
+  outline: 1px solid var(--jp-warn-color-normal, var(--jp-error-color1));
 }
 
 button.jp-Dialog-button.jp-mod-styled.jp-mod-reject:focus {
-  outline: 1px solid var(--md-grey-700);
+  outline: 1px solid var(--jp-reject-color-normal, var(--md-grey-600));
 }
 
 button.jp-Dialog-close-button {
@@ -93,7 +94,7 @@ button.jp-Dialog-close-button {
   padding-bottom: 12px;
   font-size: var(--jp-ui-font-size3);
   font-weight: 400;
-  color: var(--jp-ui-font-color0);
+  color: var(--jp-ui-font-color1);
 }
 
 .jp-Dialog-body {
@@ -102,6 +103,7 @@ button.jp-Dialog-close-button {
   flex: 1 1 auto;
   font-size: var(--jp-ui-font-size1);
   background: var(--jp-layout-color1);
+  color: var(--jp-ui-font-color1);
   overflow: auto;
 }
 
@@ -140,7 +142,7 @@ button.jp-Dialog-close-button {
 }
 
 .jp-Dialog-body > button {
-  padding: 0px 16px;
+  padding: 0 16px;
 }
 
 .jp-Dialog-body > label {
diff --git a/packages/apputils/style/hoverbox.css b/packages/apputils/style/hoverbox.css
deleted file mode 100644
index a9a6f64748a8..000000000000
--- a/packages/apputils/style/hoverbox.css
+++ /dev/null
@@ -1,13 +0,0 @@
-/*-----------------------------------------------------------------------------
-| Copyright (c) 2014-2016, Jupyter Development Team.
-|
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-.jp-HoverBox {
-  position: fixed;
-}
-
-.jp-HoverBox.jp-mod-outofview {
-  display: none;
-}
diff --git a/packages/apputils/style/index.css b/packages/apputils/style/index.css
index bd9f8cebad79..e9acc61b041c 100644
--- a/packages/apputils/style/index.css
+++ b/packages/apputils/style/index.css
@@ -6,5 +6,5 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('./base.css');
diff --git a/packages/apputils/style/index.js b/packages/apputils/style/index.js
index d7ce681a90b2..460f413b0481 100644
--- a/packages/apputils/style/index.js
+++ b/packages/apputils/style/index.js
@@ -6,5 +6,6 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 
 import './base.css';
diff --git a/packages/apputils/style/inputdialog.css b/packages/apputils/style/inputdialog.css
index ce1f383fb165..4603a4d5612c 100644
--- a/packages/apputils/style/inputdialog.css
+++ b/packages/apputils/style/inputdialog.css
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 .jp-Input-Boolean-Dialog {
   flex-direction: row-reverse;
   align-items: end;
diff --git a/packages/apputils/style/mainareawidget.css b/packages/apputils/style/mainareawidget.css
index b69b37971ce7..175621e18d77 100644
--- a/packages/apputils/style/mainareawidget.css
+++ b/packages/apputils/style/mainareawidget.css
@@ -23,7 +23,3 @@
   white-space: pre-wrap;
   word-wrap: break-word;
 }
-
-.jp-MainAreaWidget {
-  contain: strict;
-}
diff --git a/packages/apputils/style/materialcolors.css b/packages/apputils/style/materialcolors.css
index ce84bb90e0cc..f3e797dcb502 100644
--- a/packages/apputils/style/materialcolors.css
+++ b/packages/apputils/style/materialcolors.css
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /**
  * google-material-color v1.2.6
  * https://github.com/danlevan/google-material-color
@@ -17,7 +22,6 @@
   --md-red-A200: #ff5252;
   --md-red-A400: #ff1744;
   --md-red-A700: #d50000;
-
   --md-pink-50: #fce4ec;
   --md-pink-100: #f8bbd0;
   --md-pink-200: #f48fb1;
@@ -32,7 +36,6 @@
   --md-pink-A200: #ff4081;
   --md-pink-A400: #f50057;
   --md-pink-A700: #c51162;
-
   --md-purple-50: #f3e5f5;
   --md-purple-100: #e1bee7;
   --md-purple-200: #ce93d8;
@@ -46,8 +49,7 @@
   --md-purple-A100: #ea80fc;
   --md-purple-A200: #e040fb;
   --md-purple-A400: #d500f9;
-  --md-purple-A700: #aa00ff;
-
+  --md-purple-A700: #a0f;
   --md-deep-purple-50: #ede7f6;
   --md-deep-purple-100: #d1c4e9;
   --md-deep-purple-200: #b39ddb;
@@ -62,7 +64,6 @@
   --md-deep-purple-A200: #7c4dff;
   --md-deep-purple-A400: #651fff;
   --md-deep-purple-A700: #6200ea;
-
   --md-indigo-50: #e8eaf6;
   --md-indigo-100: #c5cae9;
   --md-indigo-200: #9fa8da;
@@ -77,7 +78,6 @@
   --md-indigo-A200: #536dfe;
   --md-indigo-A400: #3d5afe;
   --md-indigo-A700: #304ffe;
-
   --md-blue-50: #e3f2fd;
   --md-blue-100: #bbdefb;
   --md-blue-200: #90caf9;
@@ -92,7 +92,6 @@
   --md-blue-A200: #448aff;
   --md-blue-A400: #2979ff;
   --md-blue-A700: #2962ff;
-
   --md-light-blue-50: #e1f5fe;
   --md-light-blue-100: #b3e5fc;
   --md-light-blue-200: #81d4fa;
@@ -107,7 +106,6 @@
   --md-light-blue-A200: #40c4ff;
   --md-light-blue-A400: #00b0ff;
   --md-light-blue-A700: #0091ea;
-
   --md-cyan-50: #e0f7fa;
   --md-cyan-100: #b2ebf2;
   --md-cyan-200: #80deea;
@@ -122,7 +120,6 @@
   --md-cyan-A200: #18ffff;
   --md-cyan-A400: #00e5ff;
   --md-cyan-A700: #00b8d4;
-
   --md-teal-50: #e0f2f1;
   --md-teal-100: #b2dfdb;
   --md-teal-200: #80cbc4;
@@ -137,7 +134,6 @@
   --md-teal-A200: #64ffda;
   --md-teal-A400: #1de9b6;
   --md-teal-A700: #00bfa5;
-
   --md-green-50: #e8f5e9;
   --md-green-100: #c8e6c9;
   --md-green-200: #a5d6a7;
@@ -152,7 +148,6 @@
   --md-green-A200: #69f0ae;
   --md-green-A400: #00e676;
   --md-green-A700: #00c853;
-
   --md-light-green-50: #f1f8e9;
   --md-light-green-100: #dcedc8;
   --md-light-green-200: #c5e1a5;
@@ -167,7 +162,6 @@
   --md-light-green-A200: #b2ff59;
   --md-light-green-A400: #76ff03;
   --md-light-green-A700: #64dd17;
-
   --md-lime-50: #f9fbe7;
   --md-lime-100: #f0f4c3;
   --md-lime-200: #e6ee9c;
@@ -182,7 +176,6 @@
   --md-lime-A200: #eeff41;
   --md-lime-A400: #c6ff00;
   --md-lime-A700: #aeea00;
-
   --md-yellow-50: #fffde7;
   --md-yellow-100: #fff9c4;
   --md-yellow-200: #fff59d;
@@ -194,10 +187,9 @@
   --md-yellow-800: #f9a825;
   --md-yellow-900: #f57f17;
   --md-yellow-A100: #ffff8d;
-  --md-yellow-A200: #ffff00;
+  --md-yellow-A200: #ff0;
   --md-yellow-A400: #ffea00;
   --md-yellow-A700: #ffd600;
-
   --md-amber-50: #fff8e1;
   --md-amber-100: #ffecb3;
   --md-amber-200: #ffe082;
@@ -212,7 +204,6 @@
   --md-amber-A200: #ffd740;
   --md-amber-A400: #ffc400;
   --md-amber-A700: #ffab00;
-
   --md-orange-50: #fff3e0;
   --md-orange-100: #ffe0b2;
   --md-orange-200: #ffcc80;
@@ -227,7 +218,6 @@
   --md-orange-A200: #ffab40;
   --md-orange-A400: #ff9100;
   --md-orange-A700: #ff6d00;
-
   --md-deep-orange-50: #fbe9e7;
   --md-deep-orange-100: #ffccbc;
   --md-deep-orange-200: #ffab91;
@@ -242,7 +232,6 @@
   --md-deep-orange-A200: #ff6e40;
   --md-deep-orange-A400: #ff3d00;
   --md-deep-orange-A700: #dd2c00;
-
   --md-brown-50: #efebe9;
   --md-brown-100: #d7ccc8;
   --md-brown-200: #bcaaa4;
@@ -253,10 +242,9 @@
   --md-brown-700: #5d4037;
   --md-brown-800: #4e342e;
   --md-brown-900: #3e2723;
-
   --md-grey-50: #fafafa;
   --md-grey-100: #f5f5f5;
-  --md-grey-200: #eeeeee;
+  --md-grey-200: #eee;
   --md-grey-300: #e0e0e0;
   --md-grey-400: #bdbdbd;
   --md-grey-500: #9e9e9e;
@@ -264,7 +252,6 @@
   --md-grey-700: #616161;
   --md-grey-800: #424242;
   --md-grey-900: #212121;
-
   --md-blue-grey-50: #eceff1;
   --md-blue-grey-100: #cfd8dc;
   --md-blue-grey-200: #b0bec5;
diff --git a/packages/apputils/test/dialog.spec.tsx b/packages/apputils/test/dialog.spec.tsx
index e55d84101094..28a6c554cc97 100644
--- a/packages/apputils/test/dialog.spec.tsx
+++ b/packages/apputils/test/dialog.spec.tsx
@@ -2,13 +2,12 @@
 
 // Distributed under the terms of the Modified BSD License.
 
-import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { Dialog, ReactWidget, showDialog } from '@jupyterlab/apputils';
 import {
   acceptDialog,
   dismissDialog,
   waitForDialog
-} from '@jupyterlab/testutils';
-import { each } from '@lumino/algorithm';
+} from '@jupyterlab/testing';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
@@ -71,7 +70,6 @@ describe('@jupyterlab/apputils', () => {
         });
 
         expect(dialog).toBeInstanceOf(Dialog);
-        dialog.dispose();
       });
     });
 
@@ -277,8 +275,9 @@ describe('@jupyterlab/apputils', () => {
     });
 
     describe('#onAfterAttach()', () => {
-      it('should attach event listeners', () => {
+      it('should attach event listeners', async () => {
         Widget.attach(dialog, document.body);
+        await dialog.ready;
         expect(dialog.methods).toContain('onAfterAttach');
         ['keydown', 'contextmenu', 'click', 'focus'].forEach(event => {
           simulate(dialog.node, event);
@@ -291,15 +290,16 @@ describe('@jupyterlab/apputils', () => {
         expect(document.activeElement!.className).toContain('jp-mod-accept');
       });
 
-      it('should focus the primary element', () => {
+      it('should focus the primary element', async () => {
         const body = (
           <div>
             <input type={'text'} />
           </div>
         );
-        const dialog = new TestDialog({ body, focusNodeSelector: 'input' });
 
+        const dialog = new TestDialog({ body, focusNodeSelector: 'input' });
         Widget.attach(dialog, document.body);
+        await dialog.ready;
         expect(document.activeElement!.localName).toBe('input');
         dialog.dispose();
       });
@@ -356,6 +356,7 @@ describe('@jupyterlab/apputils', () => {
       };
 
       const data: Dialog.IButton = {
+        ariaLabel: 'ariafoo',
         label: 'foo',
         iconClass: 'bar',
         iconLabel: 'foo',
@@ -382,7 +383,7 @@ describe('@jupyterlab/apputils', () => {
           expect(widget.node.firstChild!.textContent).toBe('foo');
         });
 
-        it('should create the body from a virtual node', () => {
+        it('should create the body from a virtual node', async () => {
           const vnode = (
             <div>
               <input type={'text'} />
@@ -393,11 +394,13 @@ describe('@jupyterlab/apputils', () => {
             </div>
           );
           const widget = renderer.createBody(vnode);
+          Widget.attach(widget, document.body);
+          await (widget as ReactWidget).renderPromise;
+
           const button = widget.node.querySelector('button')!;
           const input = widget.node.querySelector('input')!;
           const select = widget.node.querySelector('select')!;
 
-          Widget.attach(widget, document.body);
           expect(button.className).toContain('jp-mod-styled');
           expect(input.className).toContain('jp-mod-styled');
           expect(select.className).toContain('jp-mod-styled');
@@ -415,8 +418,8 @@ describe('@jupyterlab/apputils', () => {
       describe('#createFooter()', () => {
         it('should create the footer of the dialog', () => {
           const buttons = [Dialog.okButton, { label: 'foo' }];
-          const nodes = buttons.map((button: Dialog.IButton) => {
-            return renderer.createButtonNode(button);
+          const nodes = buttons.map(button => {
+            return renderer.createButtonNode(button as Dialog.IButton);
           });
           const footer = renderer.createFooter(nodes, null);
           const buttonNodes = footer.node.querySelectorAll('button');
@@ -425,9 +428,9 @@ describe('@jupyterlab/apputils', () => {
           expect(footer.node.contains(nodes[0])).toBe(true);
           expect(footer.node.contains(nodes[1])).toBe(true);
           expect(buttonNodes.length).toBeGreaterThan(0);
-          each(buttonNodes, (node: Element) => {
+          for (const node of buttonNodes) {
             expect(node.className).toContain('jp-mod-styled');
-          });
+          }
         });
 
         it('should create the footer of the dialog with checkbox', () => {
diff --git a/packages/apputils/test/inputdialog.spec.ts b/packages/apputils/test/inputdialog.spec.ts
index 389c295ac42b..961e9c59b7c1 100644
--- a/packages/apputils/test/inputdialog.spec.ts
+++ b/packages/apputils/test/inputdialog.spec.ts
@@ -6,7 +6,7 @@ import {
   acceptDialog,
   dismissDialog,
   waitForDialog
-} from '@jupyterlab/testutils';
+} from '@jupyterlab/testing';
 
 describe('@jupyterlab/apputils', () => {
   describe('InputDialog', () => {
@@ -144,6 +144,48 @@ describe('@jupyterlab/apputils', () => {
       });
     });
 
+    describe('getMultipleItems()', () => {
+      it('should accept at least two arguments', async () => {
+        const dialog = InputDialog.getMultipleItems({
+          title: 'list',
+          items: ['item1']
+        });
+
+        await dismissDialog();
+        expect((await dialog).button.accept).toBe(false);
+      });
+
+      it('should return empty list if none is selected', async () => {
+        const dialog = InputDialog.getMultipleItems({
+          items: ['item1', 'item2'],
+          title: 'Pick a choice'
+        });
+
+        await acceptDialog();
+
+        const result = await dialog;
+
+        expect(result.button.accept).toBe(true);
+        expect(result.value).toStrictEqual([]);
+      });
+
+      it('should accept option "defaults"', async () => {
+        const dialog = InputDialog.getMultipleItems({
+          label: 'list',
+          items: ['item1', 'item2', 'item3'],
+          defaults: ['item1', 'item3'],
+          title: 'Pick a choice'
+        });
+
+        await acceptDialog();
+
+        const result = await dialog;
+
+        expect(result.button.accept).toBe(true);
+        expect(result.value).toStrictEqual(['item1', 'item3']);
+      });
+    });
+
     describe('getText()', () => {
       it('should accept at least one argument', async () => {
         const dialog = InputDialog.getText({
diff --git a/packages/apputils/test/notification.spec.ts b/packages/apputils/test/notification.spec.ts
index c2a288cf6fa8..20fb1baf9c2d 100644
--- a/packages/apputils/test/notification.spec.ts
+++ b/packages/apputils/test/notification.spec.ts
@@ -145,13 +145,13 @@ describe('@jupyterlab/apputils', () => {
 
         const done = new PromiseDelegate<void>();
         // Wait for promise to allow notification update to occurs
-        setImmediate(() => {
+        setTimeout(() => {
           expect(Notification.manager.notifications[0].type).toEqual('success');
           expect(Notification.manager.notifications[0].message).toEqual(
             'Promise was resolved: Done'
           );
           done.resolve();
-        });
+        }, 0);
 
         await done.promise;
       });
@@ -179,13 +179,13 @@ describe('@jupyterlab/apputils', () => {
 
         const done = new PromiseDelegate<void>();
         // Wait for promise to allow notification update to occurs
-        setImmediate(() => {
+        setTimeout(() => {
           expect(Notification.manager.notifications[0].type).toEqual('error');
           expect(Notification.manager.notifications[0].message).toEqual(
             'Promise got rejected: Failed'
           );
           done.resolve();
-        });
+        }, 0);
 
         await done.promise;
       });
diff --git a/packages/apputils/test/semanticCommand.spec.ts b/packages/apputils/test/semanticCommand.spec.ts
new file mode 100644
index 000000000000..f53766eea30c
--- /dev/null
+++ b/packages/apputils/test/semanticCommand.spec.ts
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { SemanticCommand } from '@jupyterlab/apputils';
+import { Widget } from '@lumino/widgets';
+
+describe('@jupyterlab/apputils', () => {
+  describe('SemanticCommand', () => {
+    let semanticCmd: SemanticCommand;
+
+    beforeEach(() => {
+      semanticCmd = new SemanticCommand();
+    });
+
+    describe('#add', () => {
+      it('should add a new command', () => {
+        const commandId = 'test:command';
+        let test = 2;
+        semanticCmd.add({
+          id: commandId,
+          isEnabled: () => test === 2,
+          rank: 10
+        });
+
+        expect(semanticCmd.getActiveCommandId(new Widget())).toEqual(commandId);
+      });
+
+      it('should add a command with default rank if not provided', () => {
+        semanticCmd.add({
+          id: 'not:selected',
+          rank: SemanticCommand.DEFAULT_RANK + 1
+        });
+
+        const commandId = 'test:command';
+        semanticCmd.add({
+          id: commandId
+        });
+
+        expect(semanticCmd.getActiveCommandId(new Widget())).toEqual(commandId);
+      });
+
+      it('should add an enabled command if isEnabled not provided', () => {
+        semanticCmd.add({
+          id: 'not:selected',
+          isEnabled: () => false
+        });
+
+        const commandId = 'test:command';
+        semanticCmd.add({
+          id: commandId
+        });
+
+        expect(semanticCmd.getActiveCommandId(new Widget())).toEqual(commandId);
+      });
+
+      it('should reject adding a command with an already used id', () => {
+        const commandId = 'test:command';
+        semanticCmd.add({
+          id: commandId
+        });
+
+        expect(() => {
+          semanticCmd.add({ id: commandId });
+        }).toThrow(/Command\s.+\sis already defined\./);
+      });
+    });
+
+    describe('#getActiveCommandId', () => {
+      it('should return null if no command is defined', () => {
+        expect(semanticCmd.getActiveCommandId(new Widget())).toBeNull();
+      });
+
+      it('should return null if no command is enabled', () => {
+        semanticCmd.add({
+          id: 'test:disabled',
+          isEnabled: () => false
+        });
+        expect(semanticCmd.getActiveCommandId(new Widget())).toBeNull();
+      });
+
+      it('should return the enabled command with the smallest rank', () => {
+        semanticCmd.add({
+          id: 'not:selected',
+          rank: 20
+        });
+
+        const commandId = 'test:command';
+        semanticCmd.add({
+          id: commandId,
+          rank: 10
+        });
+
+        expect(semanticCmd.getActiveCommandId(new Widget())).toEqual(commandId);
+      });
+    });
+  });
+});
diff --git a/packages/apputils/test/sessioncontext.spec.ts b/packages/apputils/test/sessioncontext.spec.ts
index 9fcb739120ea..1e1f365ccb15 100644
--- a/packages/apputils/test/sessioncontext.spec.ts
+++ b/packages/apputils/test/sessioncontext.spec.ts
@@ -4,8 +4,9 @@
 import {
   Dialog,
   ISessionContext,
+  ISessionContextDialogs,
   SessionContext,
-  sessionContextDialogs
+  SessionContextDialogs
 } from '@jupyterlab/apputils';
 import {
   KernelManager,
@@ -13,26 +14,29 @@ import {
   SessionAPI,
   SessionManager
 } from '@jupyterlab/services';
+import { IKernelConnection } from '@jupyterlab/services/lib/kernel/kernel';
 import {
   acceptDialog,
   dismissDialog,
-  flakyIt as it,
   JupyterServer,
   testEmission
-} from '@jupyterlab/testutils';
+} from '@jupyterlab/testing';
 import { PromiseDelegate, UUID } from '@lumino/coreutils';
 
-const server = new JupyterServer();
+describe('@jupyterlab/apputils', () => {
+  let server: JupyterServer;
 
-beforeAll(async () => {
-  await server.start();
-});
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
+  }, 30000);
 
-afterAll(async () => {
-  await server.shutdown();
-});
+  afterAll(async () => {
+    await server.shutdown();
+  });
+
+  jest.retryTimes(3);
 
-describe('@jupyterlab/apputils', () => {
   describe('SessionContext', () => {
     let kernelManager: KernelManager;
     let sessionManager: SessionManager;
@@ -41,7 +45,6 @@ describe('@jupyterlab/apputils', () => {
     let sessionContext: SessionContext;
 
     beforeAll(async () => {
-      jest.setTimeout(20000);
       kernelManager = new KernelManager();
       sessionManager = new SessionManager({ kernelManager });
       specsManager = new KernelSpecManager();
@@ -50,7 +53,7 @@ describe('@jupyterlab/apputils', () => {
         kernelManager.ready,
         specsManager.ready
       ]);
-    });
+    }, 30000);
 
     beforeEach(async () => {
       Dialog.flush();
@@ -336,15 +339,6 @@ describe('@jupyterlab/apputils', () => {
         };
         expect(sessionContext.kernelDisplayName).toBe('No Kernel');
       });
-
-      it('should display the pending kernel name when it looks like we are starting a kernel', async () => {
-        sessionContext.kernelPreference = {
-          autoStartDefault: true,
-          canStart: true,
-          shouldStart: true
-        };
-        expect(sessionContext.kernelDisplayName).toBe('Echo Kernel');
-      });
     });
 
     describe('#kernelDisplayStatus', () => {
@@ -418,7 +412,7 @@ describe('@jupyterlab/apputils', () => {
           }
         });
         sessionContext.dispose();
-        return delegate.promise;
+        await expect(delegate.promise).resolves.not.toThrow();
       });
     });
 
@@ -439,7 +433,7 @@ describe('@jupyterlab/apputils', () => {
         const name = 'echo';
         const kernelPromise = sessionContext.changeKernel({ name });
 
-        let lastKernel = null;
+        let lastKernel: IKernelConnection | null | undefined = null;
         sessionContext.kernelChanged.connect(() => {
           lastKernel = sessionContext.session?.kernel;
         });
@@ -457,7 +451,7 @@ describe('@jupyterlab/apputils', () => {
         // The last launched kernel should win.
         const kernelPromise1 = sessionContext.changeKernel({ name });
 
-        let lastKernel = null;
+        let lastKernel: IKernelConnection | null | undefined = null;
         sessionContext.kernelChanged.connect(() => {
           lastKernel = sessionContext.session?.kernel;
         });
@@ -496,9 +490,8 @@ describe('@jupyterlab/apputils', () => {
       });
 
       it('should return a matching name', () => {
-        const spec = specsManager.specs!.kernelspecs[
-          specsManager.specs!.default
-        ]!;
+        const spec =
+          specsManager.specs!.kernelspecs[specsManager.specs!.default]!;
 
         expect(
           SessionContext.getDefaultKernel({
@@ -518,9 +511,8 @@ describe('@jupyterlab/apputils', () => {
       });
 
       it('should return a matching language', () => {
-        const spec = specsManager.specs!.kernelspecs[
-          specsManager.specs!.default
-        ]!;
+        const spec =
+          specsManager.specs!.kernelspecs[specsManager.specs!.default]!;
         const kernelspecs: any = {};
 
         kernelspecs[spec.name] = spec;
@@ -536,9 +528,8 @@ describe('@jupyterlab/apputils', () => {
       });
 
       it('should return null if a language matches twice', () => {
-        const spec = specsManager.specs!.kernelspecs[
-          specsManager.specs!.default
-        ]!;
+        const spec =
+          specsManager.specs!.kernelspecs[specsManager.specs!.default]!;
         const kernelspecs: any = {};
 
         kernelspecs['foo'] = spec;
@@ -554,74 +545,116 @@ describe('@jupyterlab/apputils', () => {
         ).toBeNull();
       });
     });
+  });
+  describe('SessionContextDialogs', () => {
+    let sessionContextDialogs: ISessionContextDialogs;
+    let kernelManager: KernelManager;
+    let sessionManager: SessionManager;
+    let specsManager: KernelSpecManager;
+    let path = '';
+    let sessionContext: SessionContext;
 
-    describe('.sessionContextDialogs', () => {
-      describe('#selectKernel()', () => {
-        it('should select a kernel for the session', async () => {
-          await sessionContext.initialize();
+    beforeAll(async () => {
+      kernelManager = new KernelManager();
+      sessionManager = new SessionManager({ kernelManager });
+      specsManager = new KernelSpecManager();
+      await Promise.all([
+        sessionManager.ready,
+        kernelManager.ready,
+        specsManager.ready
+      ]);
+    }, 30000);
 
-          const { id, name } = sessionContext?.session!.kernel!;
-          const accept = acceptDialog();
+    beforeEach(async () => {
+      Dialog.flush();
+      path = UUID.uuid4();
+      sessionContext = new SessionContext({
+        path,
+        sessionManager,
+        specsManager,
+        kernelPreference: { name: specsManager.specs?.default }
+      });
 
-          await sessionContextDialogs.selectKernel(sessionContext);
-          await accept;
+      sessionContextDialogs = new SessionContextDialogs();
+    });
 
-          const session = sessionContext?.session;
-          expect(session!.kernel!.id).not.toBe(id);
-          expect(session!.kernel!.name).toBe(name);
-        });
+    afterEach(async () => {
+      Dialog.flush();
+      try {
+        if (sessionContext.session) {
+          await sessionContext.shutdown();
+        }
+      } catch (error) {
+        console.warn('Session shutdown failed.', error);
+      }
+      sessionContext.dispose();
+    });
 
-        it('should keep the existing kernel if dismissed', async () => {
-          await sessionContext.initialize();
+    describe('#selectKernel()', () => {
+      it('should select a kernel for the session', async () => {
+        await sessionContext.initialize();
 
-          const { id, name } = sessionContext!.session!.kernel!;
-          const dismiss = dismissDialog();
+        const { id, name } = sessionContext!.session!.kernel!;
+        const accept = acceptDialog();
 
-          await sessionContextDialogs.selectKernel(sessionContext);
-          await dismiss;
+        await sessionContextDialogs.selectKernel(sessionContext);
+        await accept;
 
-          const session = sessionContext.session;
-          expect(session!.kernel!.id).toBe(id);
-          expect(session!.kernel!.name).toBe(name);
-        });
+        const session = sessionContext?.session;
+        expect(session!.kernel!.id).not.toBe(id);
+        expect(session!.kernel!.name).toBe(name);
       });
 
-      describe('#restart()', () => {
-        it('should restart if the user accepts the dialog', async () => {
-          const emission = testEmission(sessionContext.statusChanged, {
-            find: (_, args) => args === 'restarting'
-          });
-          await sessionContext.initialize();
-          await sessionContext!.session?.kernel?.info;
-          const restart = sessionContextDialogs.restart(sessionContext);
+      it('should keep the existing kernel if dismissed', async () => {
+        await sessionContext.initialize();
 
-          await acceptDialog();
-          expect(await restart).toBe(true);
-          await emission;
-        });
+        const { id, name } = sessionContext!.session!.kernel!;
+        const dismiss = dismissDialog();
 
-        it('should not restart if the user rejects the dialog', async () => {
-          let called = false;
+        await sessionContextDialogs.selectKernel(sessionContext);
+        await dismiss;
 
-          await sessionContext.initialize();
-          sessionContext.statusChanged.connect((sender, args) => {
-            if (args === 'restarting') {
-              called = true;
-            }
-          });
+        const session = sessionContext.session;
+        expect(session!.kernel!.id).toBe(id);
+        expect(session!.kernel!.name).toBe(name);
+      });
+    });
 
-          const restart = sessionContextDialogs.restart(sessionContext);
-          await dismissDialog();
-          expect(await restart).toBe(false);
-          expect(called).toBe(false);
+    describe('#restart()', () => {
+      it('should restart if the user accepts the dialog', async () => {
+        const emission = testEmission(sessionContext.statusChanged, {
+          find: (_, args) => args === 'restarting'
         });
+        await sessionContext.initialize();
+        await sessionContext!.session?.kernel?.info;
+        const restart = sessionContextDialogs.restart(sessionContext);
 
-        it('should start the same kernel as the previously started kernel', async () => {
-          await sessionContext.initialize();
-          await sessionContext.shutdown();
-          await sessionContextDialogs.restart(sessionContext);
-          expect(sessionContext?.session?.kernel).toBeTruthy();
+        await acceptDialog();
+        expect(await restart).toBe(true);
+        await emission;
+      });
+
+      it('should not restart if the user rejects the dialog', async () => {
+        let called = false;
+
+        await sessionContext.initialize();
+        sessionContext.statusChanged.connect((sender, args) => {
+          if (args === 'restarting') {
+            called = true;
+          }
         });
+
+        const restart = sessionContextDialogs.restart(sessionContext);
+        await dismissDialog();
+        expect(await restart).toBe(false);
+        expect(called).toBe(false);
+      });
+
+      it('should start the same kernel as the previously started kernel', async () => {
+        await sessionContext.initialize();
+        await sessionContext.shutdown();
+        await sessionContextDialogs.restart(sessionContext);
+        expect(sessionContext?.session?.kernel).toBeTruthy();
       });
     });
   });
diff --git a/packages/apputils/test/toolbar.spec.ts b/packages/apputils/test/toolbar.spec.ts
index 25b6d17d44e3..9d4685628273 100644
--- a/packages/apputils/test/toolbar.spec.ts
+++ b/packages/apputils/test/toolbar.spec.ts
@@ -2,393 +2,33 @@
 // Distributed under the terms of the Modified BSD License.
 
 import {
-  CommandToolbarButton,
   createToolbarFactory,
-  ReactiveToolbar,
   SessionContext,
+  SessionContextDialogs,
   Toolbar,
-  ToolbarButton,
   ToolbarRegistry,
   ToolbarWidgetRegistry
 } from '@jupyterlab/apputils';
 import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { IDataConnector } from '@jupyterlab/statedb';
-import {
-  createSessionContext,
-  framePromise,
-  JupyterServer
-} from '@jupyterlab/testutils';
+import { framePromise, JupyterServer } from '@jupyterlab/testing';
 import { ITranslator } from '@jupyterlab/translation';
-import {
-  blankIcon,
-  bugDotIcon,
-  bugIcon,
-  jupyterIcon
-} from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
-import { CommandRegistry } from '@lumino/commands';
-import {
-  JSONExt,
-  PromiseDelegate,
-  ReadonlyPartialJSONObject
-} from '@lumino/coreutils';
-import { PanelLayout, Widget } from '@lumino/widgets';
-import { simulate } from 'simulate-event';
+import { JSONExt, PromiseDelegate } from '@lumino/coreutils';
+import { Widget } from '@lumino/widgets';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 
 const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
 });
 
 describe('@jupyterlab/apputils', () => {
-  describe('CommandToolbarButton', () => {
-    let commands: CommandRegistry;
-    const id = 'test-command';
-    const options: CommandRegistry.ICommandOptions = {
-      execute: jest.fn()
-    };
-
-    beforeEach(() => {
-      commands = new CommandRegistry();
-    });
-
-    it('should render a command', async () => {
-      commands.addCommand(id, options);
-      const button = new CommandToolbarButton({
-        commands,
-        id
-      });
-
-      Widget.attach(button, document.body);
-      await framePromise();
-
-      expect(button.hasClass('jp-CommandToolbarButton')).toBe(true);
-      simulate(button.node.firstElementChild!, 'mousedown');
-      expect(options.execute).toBeCalledTimes(1);
-    });
-
-    it('should render the label command', async () => {
-      const label = 'This is a test label';
-      commands.addCommand(id, { ...options, label });
-      const button = new CommandToolbarButton({
-        commands,
-        id
-      });
-
-      Widget.attach(button, document.body);
-      await framePromise();
-
-      expect(button.node.textContent).toMatch(label);
-    });
-
-    it('should render the customized label command', async () => {
-      const label = 'This is a test label';
-      const buttonLabel = 'This is the button label';
-      commands.addCommand(id, { ...options, label });
-      const button = new CommandToolbarButton({
-        commands,
-        id,
-        label: buttonLabel
-      });
-
-      Widget.attach(button, document.body);
-      await framePromise();
-
-      expect(button.node.textContent).toMatch(buttonLabel);
-      expect(button.node.textContent).not.toMatch(label);
-    });
-
-    it('should render the icon command', async () => {
-      const icon = jupyterIcon;
-      commands.addCommand(id, { ...options, icon });
-      const button = new CommandToolbarButton({
-        commands,
-        id
-      });
-
-      Widget.attach(button, document.body);
-      await framePromise();
-
-      expect(button.node.getElementsByTagName('svg')[0].dataset.icon).toMatch(
-        icon.name
-      );
-    });
-
-    it('should render the customized icon command', async () => {
-      const icon = jupyterIcon;
-      const buttonIcon = blankIcon;
-      commands.addCommand(id, { ...options, icon });
-      const button = new CommandToolbarButton({
-        commands,
-        id,
-        icon: buttonIcon
-      });
-
-      Widget.attach(button, document.body);
-      await framePromise();
-
-      const iconSVG = button.node.getElementsByTagName('svg')[0];
-      expect(iconSVG.dataset.icon).toMatch(buttonIcon.name);
-      expect(iconSVG.dataset.icon).not.toMatch(icon.name);
-    });
-  });
-
   describe('Toolbar', () => {
-    let widget: Toolbar<Widget>;
-
-    beforeEach(async () => {
-      jest.setTimeout(20000);
-      widget = new Toolbar();
-    });
-
-    afterEach(async () => {
-      widget.dispose();
-    });
-
-    describe('#constructor()', () => {
-      it('should construct a new toolbar widget', () => {
-        const widget = new Toolbar();
-        expect(widget).toBeInstanceOf(Toolbar);
-      });
-
-      it('should add the `jp-Toolbar` class', () => {
-        const widget = new Toolbar();
-        expect(widget.hasClass('jp-Toolbar')).toBe(true);
-      });
-    });
-
-    describe('#names()', () => {
-      it('should get an ordered list the toolbar item names', () => {
-        widget.addItem('foo', new Widget());
-        widget.addItem('bar', new Widget());
-        widget.addItem('baz', new Widget());
-        expect(toArray(widget.names())).toEqual(['foo', 'bar', 'baz']);
-      });
-    });
-
-    describe('#addItem()', () => {
-      it('should add an item to the toolbar', () => {
-        const item = new Widget();
-        expect(widget.addItem('test', item)).toBe(true);
-        expect(toArray(widget.names())).toContain('test');
-      });
-
-      it('should add the `jp-Toolbar-item` class to the widget', () => {
-        const item = new Widget();
-        widget.addItem('test', item);
-        expect(item.hasClass('jp-Toolbar-item')).toBe(true);
-      });
-
-      it('should return false if the name is already used', () => {
-        widget.addItem('test', new Widget());
-        expect(widget.addItem('test', new Widget())).toBe(false);
-      });
-    });
-
-    describe('#insertItem()', () => {
-      it('should insert the item into the toolbar', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        widget.insertItem(1, 'c', new Widget());
-        expect(toArray(widget.names())).toEqual(['a', 'c', 'b']);
-      });
-
-      it('should clamp the bounds', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        widget.insertItem(10, 'c', new Widget());
-        expect(toArray(widget.names())).toEqual(['a', 'b', 'c']);
-      });
-    });
-
-    describe('#insertAfter()', () => {
-      it('should insert an item into the toolbar after `c`', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        widget.insertItem(1, 'c', new Widget());
-        widget.insertAfter('c', 'd', new Widget());
-        expect(toArray(widget.names())).toEqual(['a', 'c', 'd', 'b']);
-      });
-
-      it('should return false if the target item does not exist', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        const value = widget.insertAfter('c', 'd', new Widget());
-        expect(value).toBe(false);
-      });
-    });
-
-    describe('#insertBefore()', () => {
-      it('should insert an item into the toolbar before `c`', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        widget.insertItem(1, 'c', new Widget());
-        widget.insertBefore('c', 'd', new Widget());
-        expect(toArray(widget.names())).toEqual(['a', 'd', 'c', 'b']);
-      });
-
-      it('should return false if the target item does not exist', () => {
-        widget.addItem('a', new Widget());
-        widget.addItem('b', new Widget());
-        const value = widget.insertBefore('c', 'd', new Widget());
-        expect(value).toBe(false);
-      });
-    });
-
-    describe('.createFromCommand', () => {
-      const commands = new CommandRegistry();
-      const testLogCommandId = 'test:toolbar-log';
-      const logArgs: ReadonlyPartialJSONObject[] = [];
-      let enabled = false;
-      let toggled = true;
-      let visible = false;
-      commands.addCommand(testLogCommandId, {
-        execute: args => {
-          logArgs.push(args);
-        },
-        label: 'Test log command label',
-        caption: 'Test log command caption',
-        usage: 'Test log command usage',
-        iconClass: 'test-icon-class',
-        className: 'test-log-class',
-        isEnabled: () => enabled,
-        isToggled: () => toggled,
-        isVisible: () => visible
-      });
-
-      async function render(button: CommandToolbarButton) {
-        button.update();
-        await framePromise();
-        expect(button.renderPromise).toBeDefined();
-        await button.renderPromise;
-      }
-
-      it('should create a button', () => {
-        const button = new CommandToolbarButton({
-          commands,
-          id: testLogCommandId
-        });
-        expect(button).toBeInstanceOf(CommandToolbarButton);
-        button.dispose();
-      });
-
-      it('should add main class', async () => {
-        const button = new CommandToolbarButton({
-          commands,
-          id: testLogCommandId
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.classList.contains('test-log-class')).toBe(true);
-        button.dispose();
-      });
-
-      it('should add an icon with icon class and label', async () => {
-        const button = new CommandToolbarButton({
-          commands,
-          id: testLogCommandId
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.title).toBe('Test log command caption');
-        const wrapperNode = buttonNode.firstChild as HTMLElement;
-        const iconNode = wrapperNode.firstChild as HTMLElement;
-        expect(iconNode.classList.contains('test-icon-class')).toBe(true);
-        button.dispose();
-      });
-
-      it('should apply state classes', async () => {
-        enabled = false;
-        toggled = true;
-        visible = false;
-        const button = new CommandToolbarButton({
-          commands,
-          id: testLogCommandId
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.disabled).toBe(true);
-        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
-        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(true);
-        button.dispose();
-      });
-
-      it('should update state classes', async () => {
-        enabled = false;
-        toggled = true;
-        visible = false;
-        const button = new CommandToolbarButton({
-          commands,
-          id: testLogCommandId
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.disabled).toBe(true);
-        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
-        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(true);
-        enabled = true;
-        visible = true;
-        commands.notifyCommandChanged(testLogCommandId);
-        expect(buttonNode.disabled).toBe(false);
-        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
-        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(false);
-        enabled = false;
-        visible = false;
-        button.dispose();
-      });
-
-      it('should use the command label if no icon class/label', async () => {
-        const id = 'to-be-removed';
-        const cmd = commands.addCommand(id, {
-          execute: () => {
-            return;
-          },
-          label: 'Label-only button'
-        });
-        const button = new CommandToolbarButton({
-          commands,
-          id
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.textContent).toBe('Label-only button');
-        cmd.dispose();
-      });
-
-      it('should update the node content on command change event', async () => {
-        const id = 'to-be-removed';
-        let iconClassValue: string = '';
-        const cmd = commands.addCommand(id, {
-          execute: () => {
-            /* no op */
-          },
-          label: 'Label-only button',
-          iconClass: () => iconClassValue ?? ''
-        });
-        const button = new CommandToolbarButton({
-          commands,
-          id
-        });
-        await render(button);
-        const buttonNode = button.node.firstChild as HTMLButtonElement;
-        expect(buttonNode.textContent).toBe('Label-only button');
-        expect(buttonNode.classList.contains(iconClassValue)).toBe(false);
-
-        iconClassValue = 'updated-icon-class';
-        commands.notifyCommandChanged(id);
-        await render(button);
-        const wrapperNode = buttonNode.firstChild as HTMLElement;
-        const iconNode = wrapperNode.firstChild as HTMLElement;
-        expect(iconNode.classList.contains(iconClassValue)).toBe(true);
-        cmd.dispose();
-      });
-    });
-
     describe('Kernel buttons', () => {
       let sessionContext: SessionContext;
       beforeEach(async () => {
@@ -413,7 +53,10 @@ describe('@jupyterlab/apputils', () => {
 
       describe('.createRestartButton()', () => {
         it("should add an inline svg node with the 'refresh' icon", async () => {
-          const button = Toolbar.createRestartButton(sessionContext);
+          const button = Toolbar.createRestartButton(
+            sessionContext,
+            new SessionContextDialogs()
+          );
           Widget.attach(button, document.body);
           await framePromise();
           expect(
@@ -424,7 +67,10 @@ describe('@jupyterlab/apputils', () => {
 
       describe('.createKernelNameItem()', () => {
         it("should display the `'display_name'` of the kernel", async () => {
-          const item = Toolbar.createKernelNameItem(sessionContext);
+          const item = Toolbar.createKernelNameItem(
+            sessionContext,
+            new SessionContextDialogs()
+          );
           await sessionContext.initialize();
           Widget.attach(item, document.body);
           await framePromise();
@@ -446,13 +92,14 @@ describe('@jupyterlab/apputils', () => {
           let called = false;
           sessionContext.statusChanged.connect((_, status) => {
             if (status === 'busy') {
+              // eslint-disable-next-line jest/no-conditional-expect
               expect(
                 item.node.querySelector("[data-icon$='circle']")
               ).toBeDefined();
               called = true;
             }
           });
-          const future = sessionContext.session?.kernel?.requestExecute({
+          const future = sessionContext.session!.kernel!.requestExecute({
             code: 'a = 109\na'
           })!;
           await future.done;
@@ -464,11 +111,12 @@ describe('@jupyterlab/apputils', () => {
           const status = sessionContext.session?.kernel?.status;
           expect(item.node.title.toLowerCase()).toContain(status);
           let called = false;
-          const future = sessionContext.session?.kernel?.requestExecute({
+          const future = sessionContext.session!.kernel!.requestExecute({
             code: 'a = 1'
           })!;
           future.onIOPub = msg => {
             if (sessionContext.session?.kernel?.status === 'busy') {
+              // eslint-disable-next-line jest/no-conditional-expect
               expect(item.node.title.toLowerCase()).toContain('busy');
               called = true;
             }
@@ -494,264 +142,6 @@ describe('@jupyterlab/apputils', () => {
     });
   });
 
-  describe('ReactiveToolbar', () => {
-    let toolbar: ReactiveToolbar;
-
-    beforeEach(() => {
-      toolbar = new ReactiveToolbar();
-      Widget.attach(toolbar, document.body);
-    });
-
-    afterEach(() => {
-      toolbar.dispose();
-    });
-
-    describe('#constructor()', () => {
-      it('should append a node to body for the pop-up', () => {
-        const popup = document.body.querySelector(
-          '.jp-Toolbar-responsive-popup'
-        );
-        expect(popup).toBeDefined();
-        expect(popup!.parentNode!.nodeName).toEqual('BODY');
-      });
-    });
-
-    describe('#addItem()', () => {
-      it('should insert item before the toolbar pop-up button', () => {
-        const w = new Widget();
-        toolbar.addItem('test', w);
-        expect(
-          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
-        ).toEqual((toolbar.layout as PanelLayout).widgets.length - 2);
-      });
-    });
-
-    describe('#insertItem()', () => {
-      it('should insert item before the toolbar pop-up button', () => {
-        const w = new Widget();
-        toolbar.insertItem(2, 'test', w);
-        expect(
-          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
-        ).toEqual((toolbar.layout as PanelLayout).widgets.length - 2);
-      });
-    });
-
-    describe('#insertAfter()', () => {
-      it('should not insert item after the toolbar pop-up button', () => {
-        const w = new Widget();
-        const r = toolbar.insertAfter('toolbar-popup-opener', 'test', w);
-        expect(r).toEqual(false);
-        expect(
-          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
-        ).toEqual(-1);
-      });
-    });
-  });
-
-  describe('ToolbarButton', () => {
-    describe('#constructor()', () => {
-      it('should accept no arguments', () => {
-        const widget = new ToolbarButton();
-        expect(widget).toBeInstanceOf(ToolbarButton);
-      });
-
-      it('should accept options', async () => {
-        const widget = new ToolbarButton({
-          className: 'foo',
-          iconClass: 'iconFoo',
-          onClick: () => {
-            return void 0;
-          },
-          tooltip: 'bar'
-        });
-        Widget.attach(widget, document.body);
-        await framePromise();
-        const button = widget.node.firstChild as HTMLElement;
-        expect(button.classList.contains('foo')).toBe(true);
-        expect(button.querySelector('.iconFoo')).toBeDefined();
-        expect(button.title).toBe('bar');
-      });
-    });
-
-    describe('#dispose()', () => {
-      it('should dispose of the resources used by the widget', () => {
-        const button = new ToolbarButton();
-        button.dispose();
-        expect(button.isDisposed).toBe(true);
-      });
-
-      it('should be safe to call more than once', () => {
-        const button = new ToolbarButton();
-        button.dispose();
-        button.dispose();
-        expect(button.isDisposed).toBe(true);
-      });
-    });
-
-    describe('#handleEvent()', () => {
-      describe('click', () => {
-        it('should activate the callback', async () => {
-          let called = false;
-          const button = new ToolbarButton({
-            onClick: () => {
-              called = true;
-            }
-          });
-          Widget.attach(button, document.body);
-          await framePromise();
-          simulate(button.node.firstChild as HTMLElement, 'mousedown');
-          expect(called).toBe(true);
-          button.dispose();
-        });
-      });
-      describe('keydown', () => {
-        it('Enter should activate the callback', async () => {
-          let called = false;
-          const button = new ToolbarButton({
-            onClick: () => {
-              called = true;
-            }
-          });
-          Widget.attach(button, document.body);
-          await framePromise();
-          simulate(button.node.firstChild as HTMLElement, 'keydown', {
-            key: 'Enter'
-          });
-          expect(called).toBe(true);
-          button.dispose();
-        });
-        it('Space should activate the callback', async () => {
-          let called = false;
-          const button = new ToolbarButton({
-            onClick: () => {
-              called = true;
-            }
-          });
-          Widget.attach(button, document.body);
-          await framePromise();
-          simulate(button.node.firstChild as HTMLElement, 'keydown', {
-            key: ' '
-          });
-          expect(called).toBe(true);
-          button.dispose();
-        });
-      });
-    });
-
-    describe('#pressed()', () => {
-      it('should update the pressed state', async () => {
-        const widget = new ToolbarButton({
-          icon: bugIcon,
-          tooltip: 'tooltip',
-          pressedTooltip: 'pressed tooltip',
-          pressedIcon: bugDotIcon
-        });
-        Widget.attach(widget, document.body);
-        await framePromise();
-        const button = widget.node.firstChild as HTMLElement;
-        expect(widget.pressed).toBe(false);
-        expect(button.title).toBe('tooltip');
-        expect(button.getAttribute('aria-pressed')).toEqual('false');
-        let icon = button.querySelectorAll('svg');
-        expect(icon[0].getAttribute('data-icon')).toEqual('ui-components:bug');
-        widget.pressed = true;
-        await framePromise();
-        expect(widget.pressed).toBe(true);
-        expect(button.title).toBe('pressed tooltip');
-        expect(button.getAttribute('aria-pressed')).toEqual('true');
-        icon = button.querySelectorAll('svg');
-        expect(icon[0].getAttribute('data-icon')).toEqual(
-          'ui-components:bug-dot'
-        );
-        widget.dispose();
-      });
-
-      it('should not have the pressed state when not enabled', async () => {
-        const widget = new ToolbarButton({
-          icon: bugIcon,
-          tooltip: 'tooltip',
-          pressedTooltip: 'pressed tooltip',
-          disabledTooltip: 'disabled tooltip',
-          pressedIcon: bugDotIcon,
-          enabled: false
-        });
-        Widget.attach(widget, document.body);
-        await framePromise();
-        const button = widget.node.firstChild as HTMLElement;
-        expect(widget.pressed).toBe(false);
-        expect(button.title).toBe('disabled tooltip');
-        expect(button.getAttribute('aria-pressed')).toEqual('false');
-        widget.pressed = true;
-        await framePromise();
-        expect(widget.pressed).toBe(false);
-        expect(button.title).toBe('disabled tooltip');
-        expect(button.getAttribute('aria-pressed')).toEqual('false');
-        const icon = button.querySelectorAll('svg');
-        expect(icon[0].getAttribute('data-icon')).toEqual('ui-components:bug');
-        widget.dispose();
-      });
-    });
-
-    describe('#enabled()', () => {
-      it('should update the enabled state', async () => {
-        const widget = new ToolbarButton({
-          icon: bugIcon,
-          tooltip: 'tooltip',
-          pressedTooltip: 'pressed tooltip',
-          disabledTooltip: 'disabled tooltip',
-          pressedIcon: bugDotIcon
-        });
-        Widget.attach(widget, document.body);
-        await framePromise();
-        const button = widget.node.firstChild as HTMLElement;
-        expect(widget.enabled).toBe(true);
-        expect(widget.pressed).toBe(false);
-        expect(button.getAttribute('aria-disabled')).toEqual('false');
-
-        widget.pressed = true;
-        await framePromise();
-        expect(widget.pressed).toBe(true);
-
-        widget.enabled = false;
-        await framePromise();
-        expect(widget.enabled).toBe(false);
-        expect(widget.pressed).toBe(false);
-        expect(button.getAttribute('aria-disabled')).toEqual('true');
-        widget.dispose();
-      });
-    });
-
-    describe('#onClick()', () => {
-      it('should update the onClick state', async () => {
-        let mockCalled = false;
-        const mockOnClick = () => {
-          mockCalled = true;
-        };
-        const widget = new ToolbarButton({
-          icon: bugIcon,
-          tooltip: 'tooltip',
-          onClick: mockOnClick
-        });
-        Widget.attach(widget, document.body);
-        await framePromise();
-        simulate(widget.node.firstChild as HTMLElement, 'mousedown');
-        expect(mockCalled).toBe(true);
-
-        mockCalled = false;
-        let mockUpdatedCalled = false;
-        const mockOnClickUpdated = () => {
-          mockUpdatedCalled = true;
-        };
-        widget.onClick = mockOnClickUpdated;
-        await framePromise();
-        simulate(widget.node.firstChild as HTMLElement, 'mousedown');
-        expect(mockCalled).toBe(false);
-        expect(mockUpdatedCalled).toBe(true);
-        widget.dispose();
-      });
-    });
-  });
-
   describe('ToolbarWidgetRegistry', () => {
     describe('#constructor', () => {
       it('should set a default factory', () => {
@@ -794,7 +184,7 @@ describe('@jupyterlab/apputils', () => {
         const widget = registry.createWidget('factory', documentWidget, item);
 
         expect(widget).toBe(dummyWidget);
-        expect(dummy).toBeCalledWith('factory', documentWidget, item);
+        expect(dummy).toHaveBeenCalledWith('factory', documentWidget, item);
       });
 
       it('should call the registered factory', () => {
@@ -810,17 +200,17 @@ describe('@jupyterlab/apputils', () => {
           name: 'test'
         };
 
-        registry.registerFactory('factory', item.name, dummy);
+        registry.addFactory('factory', item.name, dummy);
 
         const widget = registry.createWidget('factory', documentWidget, item);
 
         expect(widget).toBe(dummyWidget);
-        expect(dummy).toBeCalledWith(documentWidget);
-        expect(defaultFactory).toBeCalledTimes(0);
+        expect(dummy).toHaveBeenCalledWith(documentWidget);
+        expect(defaultFactory).toHaveBeenCalledTimes(0);
       });
     });
 
-    describe('#registerFactory', () => {
+    describe('#addFactory', () => {
       it('should return the previous registered factory', () => {
         const defaultFactory = jest.fn();
         const dummy = jest.fn();
@@ -834,11 +224,9 @@ describe('@jupyterlab/apputils', () => {
         };
 
         expect(
-          registry.registerFactory('factory', item.name, dummy)
+          registry.addFactory('factory', item.name, dummy)
         ).toBeUndefined();
-        expect(registry.registerFactory('factory', item.name, dummy2)).toBe(
-          dummy
-        );
+        expect(registry.addFactory('factory', item.name, dummy2)).toBe(dummy);
       });
     });
   });
@@ -911,6 +299,7 @@ describe('@jupyterlab/apputils', () => {
       });
 
       const translator: ITranslator = {
+        languageCode: 'en',
         load: jest.fn()
       };
 
@@ -1019,6 +408,7 @@ describe('@jupyterlab/apputils', () => {
       });
 
       const translator: ITranslator = {
+        languageCode: 'en',
         load: jest.fn()
       };
 
@@ -1119,6 +509,7 @@ describe('@jupyterlab/apputils', () => {
       });
 
       const translator: ITranslator = {
+        languageCode: 'en',
         load: jest.fn()
       };
 
@@ -1143,5 +534,99 @@ describe('@jupyterlab/apputils', () => {
       expect(factory(new Widget())).toHaveLength(3);
       expect(factory2(new Widget())).toHaveLength(3);
     });
+
+    it('should update the toolbar items with late item factory', async () => {
+      const factoryName = 'dummyFactory';
+      const pluginId = 'test-plugin:settings';
+
+      const dummyWidget = new Widget();
+      const defaultFactory = jest.fn().mockReturnValue(dummyWidget);
+
+      const textContent = 'This is a test widget';
+      const node = document.createElement('div');
+      node.textContent = textContent;
+      const testWidget = new Widget({ node });
+      const itemFactory = jest.fn().mockReturnValue(testWidget);
+
+      const toolbarRegistry = new ToolbarWidgetRegistry({
+        defaultFactory: defaultFactory
+      });
+
+      const bar: ISettingRegistry.IPlugin = {
+        data: {
+          composite: {},
+          user: {}
+        },
+        id: pluginId,
+        raw: '{}',
+        schema: {
+          'jupyter.lab.toolbars': {
+            dummyFactory: [
+              {
+                name: 'test',
+                rank: 20
+              }
+            ]
+          },
+          'jupyter.lab.transform': true,
+          properties: {
+            toolbar: {
+              type: 'array'
+            }
+          },
+          type: 'object'
+        },
+        version: 'test'
+      };
+
+      const connector: IDataConnector<
+        ISettingRegistry.IPlugin,
+        string,
+        string,
+        string
+      > = {
+        fetch: jest.fn().mockImplementation((id: string) => {
+          switch (id) {
+            case bar.id:
+              return bar;
+            default:
+              return {};
+          }
+        }),
+        list: jest.fn(),
+        save: jest.fn(),
+        remove: jest.fn()
+      };
+
+      const settingRegistry = new SettingRegistry({
+        connector
+      });
+
+      const translator: ITranslator = {
+        languageCode: 'en',
+        load: jest.fn()
+      };
+
+      const factory = createToolbarFactory(
+        toolbarRegistry,
+        settingRegistry,
+        factoryName,
+        pluginId,
+        translator
+      );
+
+      await settingRegistry.load(bar.id);
+
+      const toolbar = factory(new Widget());
+
+      // Should contain the defaultFactory widget
+      expect(toolbar).toHaveLength(1);
+      expect(toolbar.get(0).widget.node.textContent).not.toContain(textContent);
+
+      // Add a factory item to the toolbar should re-render the widget.
+      toolbarRegistry.addFactory(factoryName, 'test', itemFactory);
+      expect(toolbar).toHaveLength(1);
+      expect(toolbar.get(0).widget.node.textContent).toContain(textContent);
+    });
   });
 });
diff --git a/packages/apputils/test/widgettracker.spec.ts b/packages/apputils/test/widgettracker.spec.ts
index c2bfee8e96e7..1b4360eb84aa 100644
--- a/packages/apputils/test/widgettracker.spec.ts
+++ b/packages/apputils/test/widgettracker.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { WidgetTracker } from '@jupyterlab/apputils';
-import { signalToPromise, testEmission } from '@jupyterlab/testutils';
+import { signalToPromise, testEmission } from '@jupyterlab/testing';
 import { Panel, Widget } from '@lumino/widgets';
 import { simulate } from 'simulate-event';
 
@@ -50,28 +50,33 @@ describe('@jupyterlab/apputils', () => {
     });
 
     describe('#currentChanged', () => {
+      let widget: Widget;
+      let widget2: Widget;
+
+      beforeEach(() => {
+        widget = createWidget();
+        widget2 = createWidget();
+      });
+
+      afterEach(() => {
+        widget.dispose();
+        widget2.dispose();
+      });
+
       it('should emit for the first added widget', async () => {
-        const widget = createWidget();
         const promise = signalToPromise(tracker.currentChanged);
         void tracker.add(widget);
-        await promise;
-        widget.dispose();
+        await expect(promise).resolves.not.toThrow();
       });
 
       it('should emit when a widget is added and there is another widget that does not have focus', async () => {
-        const widget = createWidget();
-        const widget2 = createWidget();
         await tracker.add(widget);
         const promise = signalToPromise(tracker.currentChanged);
         await tracker.add(widget2);
-        await promise;
-        widget.dispose();
-        widget2.dispose();
+        await expect(promise).resolves.not.toThrow();
       });
 
       it('should not emit when a widget is added and there is another widget that has focus', async () => {
-        const widget = createWidget();
-        const widget2 = createWidget();
         Widget.attach(widget, document.body);
         focus(widget);
         await tracker.add(widget);
@@ -81,13 +86,9 @@ describe('@jupyterlab/apputils', () => {
         });
         await tracker.add(widget2);
         expect(called).toBe(false);
-        widget.dispose();
-        widget2.dispose();
       });
 
       it('should emit when the focus changes', async () => {
-        const widget = createWidget();
-        const widget2 = createWidget();
         Widget.attach(widget, document.body);
         Widget.attach(widget2, document.body);
         focus(widget);
@@ -95,15 +96,25 @@ describe('@jupyterlab/apputils', () => {
         await tracker.add(widget2);
         const promise = signalToPromise(tracker.currentChanged);
         focus(widget2);
-        await promise;
-        widget.dispose();
-        widget2.dispose();
+        await expect(promise).resolves.not.toThrow();
       });
     });
 
     describe('#widgetAdded', () => {
+      let widget: Widget;
+      let widget2: Widget;
+
+      beforeEach(() => {
+        widget = createWidget();
+        widget2 = createWidget();
+      });
+
+      afterEach(() => {
+        widget.dispose();
+        widget2.dispose();
+      });
+
       it('should emit when a widget has been added', async () => {
-        const widget = createWidget();
         const promise = signalToPromise(tracker.widgetAdded);
 
         await tracker.add(widget);
@@ -112,12 +123,9 @@ describe('@jupyterlab/apputils', () => {
 
         expect(sender).toBe(tracker);
         expect(args).toBe(widget);
-        widget.dispose();
       });
 
       it('should not emit when a widget has been injected', async () => {
-        const one = createWidget();
-        const two = createWidget();
         let total = 0;
         const promise = testEmission(tracker.currentChanged, {
           find: () => {
@@ -128,14 +136,12 @@ describe('@jupyterlab/apputils', () => {
         tracker.widgetAdded.connect(() => {
           total++;
         });
-        void tracker.add(one);
-        void tracker.inject(two);
-        Widget.attach(two, document.body);
-        focus(two);
-        Widget.detach(two);
-        await promise;
-        one.dispose();
-        two.dispose();
+        void tracker.add(widget);
+        void tracker.inject(widget2);
+        Widget.attach(widget2, document.body);
+        focus(widget2);
+        Widget.detach(widget2);
+        await expect(promise).resolves.not.toThrow();
       });
     });
 
diff --git a/packages/apputils/tsconfig.json b/packages/apputils/tsconfig.json
index 386ee5868935..6d376f7368a1 100644
--- a/packages/apputils/tsconfig.json
+++ b/packages/apputils/tsconfig.json
@@ -12,6 +12,9 @@
     {
       "path": "../observables"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../services"
     },
@@ -21,6 +24,9 @@
     {
       "path": "../statedb"
     },
+    {
+      "path": "../statusbar"
+    },
     {
       "path": "../translation"
     },
diff --git a/packages/apputils/tsconfig.test.json b/packages/apputils/tsconfig.test.json
index 0906c34437d5..b695d79012bb 100644
--- a/packages/apputils/tsconfig.test.json
+++ b/packages/apputils/tsconfig.test.json
@@ -8,6 +8,9 @@
     {
       "path": "../observables"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../services"
     },
@@ -17,6 +20,9 @@
     {
       "path": "../statedb"
     },
+    {
+      "path": "../statusbar"
+    },
     {
       "path": "../translation"
     },
@@ -27,28 +33,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../settingregistry"
-    },
-    {
-      "path": "../statedb"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/attachments/package.json b/packages/attachments/package.json
index 8c34ffe14e3d..a8fd741dd7d0 100644
--- a/packages/attachments/package.json
+++ b/packages/attachments/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/attachments",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Notebook Cell Attachments",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,17 +37,17 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0"
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/attachments/src/model.ts b/packages/attachments/src/model.ts
index 4c1221b951a6..3d4ad359f8c1 100644
--- a/packages/attachments/src/model.ts
+++ b/packages/attachments/src/model.ts
@@ -3,11 +3,9 @@
 
 import * as nbformat from '@jupyterlab/nbformat';
 import {
-  IModelDB,
   IObservableMap,
   IObservableValue,
-  ObservableMap,
-  ObservableValue
+  ObservableMap
 } from '@jupyterlab/observables';
 import {
   AttachmentModel,
@@ -106,11 +104,6 @@ export namespace IAttachmentsModel {
      * If not given, a default factory will be used.
      */
     contentFactory?: IContentFactory;
-
-    /**
-     * An optional IModelDB to store the attachments model.
-     */
-    modelDB?: IModelDB;
   }
 
   /**
@@ -136,9 +129,9 @@ export class AttachmentsModel implements IAttachmentsModel {
   /**
    * Construct a new observable outputs instance.
    */
-  constructor(options: IAttachmentsModel.IOptions = {}) {
+  constructor(options: IAttachmentsModel.IOptions) {
     this.contentFactory =
-      options.contentFactory || AttachmentsModel.defaultContentFactory;
+      options.contentFactory ?? AttachmentsModel.defaultContentFactory;
     if (options.values) {
       for (const key of Object.keys(options.values)) {
         if (options.values[key] !== undefined) {
@@ -147,19 +140,6 @@ export class AttachmentsModel implements IAttachmentsModel {
       }
     }
     this._map.changed.connect(this._onMapChanged, this);
-
-    // If we are given a IModelDB, keep an up-to-date
-    // serialized copy of the AttachmentsModel in it.
-    if (options.modelDB) {
-      this._modelDB = options.modelDB;
-      this._serialized = this._modelDB.createValue('attachments');
-      if (this._serialized.get()) {
-        this.fromJSON(this._serialized.get() as nbformat.IAttachments);
-      } else {
-        this._serialized.set(this.toJSON());
-      }
-      this._serialized.changed.connect(this._onSerializedChanged, this);
-    }
   }
 
   /**
@@ -260,7 +240,7 @@ export class AttachmentsModel implements IAttachmentsModel {
    * #### Notes
    * This will clear any existing data.
    */
-  fromJSON(values: nbformat.IAttachments) {
+  fromJSON(values: nbformat.IAttachments): void {
     this.clear();
     Object.keys(values).forEach(key => {
       if (values[key] !== undefined) {
@@ -306,21 +286,6 @@ export class AttachmentsModel implements IAttachmentsModel {
     this._stateChanged.emit(void 0);
   }
 
-  /**
-   * If the serialized version of the outputs have changed due to a remote
-   * action, then update the model accordingly.
-   */
-  private _onSerializedChanged(
-    sender: IObservableValue,
-    args: ObservableValue.IChangedArgs
-  ) {
-    if (!this._changeGuard) {
-      this._changeGuard = true;
-      this.fromJSON(args.newValue as nbformat.IAttachments);
-      this._changeGuard = false;
-    }
-  }
-
   /**
    * Handle a change to an item.
    */
@@ -332,7 +297,6 @@ export class AttachmentsModel implements IAttachmentsModel {
   private _isDisposed = false;
   private _stateChanged = new Signal<IAttachmentsModel, void>(this);
   private _changed = new Signal<this, IAttachmentsModel.ChangedArgs>(this);
-  private _modelDB: IModelDB | null = null;
   private _serialized: IObservableValue | null = null;
   private _changeGuard = false;
 }
diff --git a/packages/cell-toolbar-extension/package.json b/packages/cell-toolbar-extension/package.json
index dbf43b68d83d..e97cfbe0dafe 100644
--- a/packages/cell-toolbar-extension/package.json
+++ b/packages/cell-toolbar-extension/package.json
@@ -1,7 +1,13 @@
 {
-  "name": "@jupyterlab/cell-toolbar-extension",
+<<<<<<<< HEAD:packages/mathjax2/package.json
+  "name": "@jupyterlab/mathjax2",
   "version": "3.6.6",
+  "description": "A MathJax 2 Typesetting provider for JupyterLab",
+========
+  "name": "@jupyterlab/cell-toolbar-extension",
+  "version": "4.0.8",
   "description": "Extension for cell toolbar adapted from jlab-enhanced-cell-toolbar",
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/cell-toolbar-extension/package.json
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
     "url": "https://github.com/jupyterlab/jupyterlab/issues"
@@ -25,33 +31,33 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:all": "npm run build",
-    "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+<<<<<<<< HEAD:packages/mathjax2/package.json
+    "docs": "typedoc src",
+    "watch": "tsc -b --watch"
+  },
+  "dependencies": {
+    "@jupyterlab/rendermime-interfaces": "^3.6.6",
+    "@lumino/coreutils": "^1.11.0"
+========
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cell-toolbar": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cell-toolbar": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/cell-toolbar-extension/package.json
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/cell-toolbar-extension/schema/plugin.json b/packages/cell-toolbar-extension/schema/plugin.json
index 519809812b31..e42bdd329367 100644
--- a/packages/cell-toolbar-extension/schema/plugin.json
+++ b/packages/cell-toolbar-extension/schema/plugin.json
@@ -70,6 +70,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/cell-toolbar-extension/src/index.ts b/packages/cell-toolbar-extension/src/index.ts
index db89161a91e4..9abe2097faaf 100644
--- a/packages/cell-toolbar-extension/src/index.ts
+++ b/packages/cell-toolbar-extension/src/index.ts
@@ -21,6 +21,7 @@ import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
 const cellToolbar: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/cell-toolbar-extension:plugin',
+  description: 'Add the cells toolbar.',
   autoStart: true,
   activate: async (
     app: JupyterFrontEnd,
diff --git a/packages/cell-toolbar/babel.config.js b/packages/cell-toolbar/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/cell-toolbar/babel.config.js
+++ b/packages/cell-toolbar/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/cell-toolbar/jest.config.js b/packages/cell-toolbar/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/cell-toolbar/jest.config.js
+++ b/packages/cell-toolbar/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/cell-toolbar/package.json b/packages/cell-toolbar/package.json
index 628aefb11c1b..ab483efecf54 100644
--- a/packages/cell-toolbar/package.json
+++ b/packages/cell-toolbar/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/cell-toolbar",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "Contextual cell toolbar adapted from jlab-enhanced-cell-toolbar",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -26,38 +26,39 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:all": "npm run build",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/cell-toolbar/src/celltoolbartracker.ts b/packages/cell-toolbar/src/celltoolbartracker.ts
index 8925721ef03d..8a385958de2a 100644
--- a/packages/cell-toolbar/src/celltoolbartracker.ts
+++ b/packages/cell-toolbar/src/celltoolbartracker.ts
@@ -2,20 +2,24 @@
 | Copyright (c) Jupyter Development Team.
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
+import { createDefaultFactory, ToolbarRegistry } from '@jupyterlab/apputils';
 import {
-  createDefaultFactory,
-  Toolbar,
-  ToolbarRegistry
-} from '@jupyterlab/apputils';
-import { Cell, CodeCell, ICellModel, MarkdownCell } from '@jupyterlab/cells';
+  Cell,
+  CellModel,
+  CodeCell,
+  ICellModel,
+  MarkdownCell
+} from '@jupyterlab/cells';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import { Notebook, NotebookPanel } from '@jupyterlab/notebook';
 import { IObservableList, ObservableList } from '@jupyterlab/observables';
-import { each, toArray } from '@lumino/algorithm';
+import { ReactWidget, Toolbar } from '@jupyterlab/ui-components';
+import { some } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import { IDisposable } from '@lumino/disposable';
 import { Signal } from '@lumino/signaling';
 import { PanelLayout, Widget } from '@lumino/widgets';
+import { IMapChange } from '@jupyter/ydoc';
 
 /*
  * Text mime types
@@ -53,7 +57,12 @@ export class CellToolbarTracker implements IDisposable {
     this._toolbar.changed.connect(this._onToolbarChanged, this);
 
     // Only add the toolbar to the notebook's active cell (if any) once it has fully rendered and been revealed.
-    void panel.revealed.then(() => this._onActiveCellChanged(panel.content));
+    void panel.revealed.then(() => {
+      // Wait one frame (at 60 fps) for the panel to render the first cell, then display the cell toolbar on it if possible.
+      setTimeout(() => {
+        this._onActiveCellChanged(panel.content);
+      }, 1000 / 60);
+    });
 
     // Check whether the toolbar should be rendered upon a layout change
     panel.content.renderingLayoutChanged.connect(
@@ -63,23 +72,56 @@ export class CellToolbarTracker implements IDisposable {
 
     // Handle subsequent changes of active cell.
     panel.content.activeCellChanged.connect(this._onActiveCellChanged, this);
+    panel.content.activeCell?.model.metadataChanged.connect(
+      this._onMetadataChanged,
+      this
+    );
+    panel.disposed.connect(() => {
+      panel.content.activeCellChanged.disconnect(this._onActiveCellChanged);
+      panel.content.activeCell?.model.metadataChanged.disconnect(
+        this._onMetadataChanged
+      );
+    });
   }
 
+  _onMetadataChanged(model: CellModel, args: IMapChange) {
+    if (args.key === 'jupyter') {
+      if (
+        typeof args.newValue === 'object' &&
+        args.newValue.source_hidden === true &&
+        (args.type === 'add' || args.type === 'change')
+      ) {
+        // Cell just became hidden; remove toolbar
+        this._removeToolbar(model);
+      }
+      // Check whether input visibility changed
+      else if (
+        typeof args.oldValue === 'object' &&
+        args.oldValue.source_hidden === true
+      ) {
+        // Cell just became visible; add toolbar
+        this._addToolbar(model);
+      }
+    }
+  }
   _onActiveCellChanged(notebook: Notebook): void {
     if (this._previousActiveCell && !this._previousActiveCell.isDisposed) {
-      // Disposed cells do not have model anymore.
+      // Disposed cells do not have a model anymore.
       this._removeToolbar(this._previousActiveCell.model);
+      this._previousActiveCell.model.metadataChanged.disconnect(
+        this._onMetadataChanged
+      );
     }
 
     const activeCell = notebook.activeCell;
-    if (!activeCell) {
+    if (activeCell === null || activeCell.inputHidden) {
       return;
     }
 
+    activeCell.model.metadataChanged.connect(this._onMetadataChanged, this);
+
     this._addToolbar(activeCell.model);
     this._previousActiveCell = activeCell;
-
-    this._updateCellForToolbarOverlap(activeCell);
   }
 
   get isDisposed(): boolean {
@@ -96,7 +138,9 @@ export class CellToolbarTracker implements IDisposable {
 
     const cells = this._panel?.context.model.cells;
     if (cells) {
-      each(cells.iter(), model => this._removeToolbar(model));
+      for (const model of cells) {
+        this._removeToolbar(model);
+      }
     }
 
     this._panel = null;
@@ -111,18 +155,36 @@ export class CellToolbarTracker implements IDisposable {
       const toolbarWidget = new Toolbar();
       toolbarWidget.addClass(CELL_MENU_CLASS);
 
-      toArray(this._toolbar).forEach(({ name, widget }) => {
+      const promises: Promise<void>[] = [];
+      for (const { name, widget } of this._toolbar) {
         toolbarWidget.addItem(name, widget);
-      });
+        if (
+          widget instanceof ReactWidget &&
+          (widget as ReactWidget).renderPromise !== undefined
+        ) {
+          (widget as ReactWidget).update();
+          promises.push((widget as ReactWidget).renderPromise!);
+        }
+      }
+
+      // Wait for all the buttons to be rendered before attaching the toolbar.
+      Promise.all(promises)
+        .then(() => {
+          toolbarWidget.addClass(CELL_TOOLBAR_CLASS);
+          (cell.layout as PanelLayout).insertWidget(0, toolbarWidget);
 
-      toolbarWidget.addClass(CELL_TOOLBAR_CLASS);
-      (cell.layout as PanelLayout).insertWidget(0, toolbarWidget);
+          // For rendered markdown, watch for resize events.
+          cell.displayChanged.connect(this._resizeEventCallback, this);
 
-      // For rendered markdown, watch for resize events.
-      cell.displayChanged.connect(this._resizeEventCallback, this);
+          // Watch for changes in the cell's contents.
+          cell.model.contentChanged.connect(this._changedEventCallback, this);
 
-      // Watch for changes in the cell's contents.
-      cell.model.contentChanged.connect(this._changedEventCallback, this);
+          // Hide the cell toolbar if it overlaps with cell contents
+          this._updateCellForToolbarOverlap(cell);
+        })
+        .catch(e => {
+          console.error('Error rendering buttons of the cell toolbar: ', e);
+        });
     }
   }
 
@@ -140,7 +202,9 @@ export class CellToolbarTracker implements IDisposable {
   private _removeToolbar(model: ICellModel): void {
     const cell = this._getCell(model);
     if (cell) {
-      this._findToolbarWidgets(cell).forEach(widget => widget.dispose());
+      this._findToolbarWidgets(cell).forEach(widget => {
+        widget.dispose();
+      });
       // Attempt to remove the resize and changed event handlers.
       cell.displayChanged.disconnect(this._resizeEventCallback, this);
     }
@@ -152,8 +216,8 @@ export class CellToolbarTracker implements IDisposable {
    */
   private _onToolbarChanged(): void {
     // Reset toolbar when settings changes
-    const activeCell: Cell<ICellModel> | null | undefined = this._panel?.content
-      .activeCell;
+    const activeCell: Cell<ICellModel> | null | undefined =
+      this._panel?.content.activeCell;
     if (activeCell) {
       this._removeToolbar(activeCell.model);
       this._addToolbar(activeCell.model);
@@ -179,15 +243,19 @@ export class CellToolbarTracker implements IDisposable {
   }
 
   private _updateCellForToolbarOverlap(activeCell: Cell<ICellModel>) {
-    // Remove the "toolbar overlap" class from the cell, rendering the cell's toolbar
-    const activeCellElement = activeCell.node;
-    activeCellElement.classList.remove(TOOLBAR_OVERLAP_CLASS);
-
-    if (this._cellToolbarOverlapsContents(activeCell)) {
-      // Add the "toolbar overlap" class to the cell, completely concealing the toolbar,
-      // if the first line of the content overlaps with it at all
-      activeCellElement.classList.add(TOOLBAR_OVERLAP_CLASS);
-    }
+    // When we do change in cell, If we don't wait the browser might not have
+    // completed the layout update, resulting in the previous width being returned
+    // using `getBoundingClientRect().width` in later functions.
+    requestAnimationFrame(() => {
+      // Remove the "toolbar overlap" class from the cell, rendering the cell's toolbar
+      const activeCellElement = activeCell.node;
+      activeCellElement.classList.remove(TOOLBAR_OVERLAP_CLASS);
+      if (this._cellToolbarOverlapsContents(activeCell)) {
+        // Add the "toolbar overlap" class to the cell, completely concealing the toolbar,
+        // if the first line of the content overlaps with it at all
+        activeCellElement.classList.add(TOOLBAR_OVERLAP_CLASS);
+      }
+    });
   }
 
   private _cellToolbarOverlapsContents(activeCell: Cell<ICellModel>): boolean {
@@ -228,12 +296,16 @@ export class CellToolbarTracker implements IDisposable {
    */
   private _markdownOverlapsToolbar(activeCell: MarkdownCell): boolean {
     const markdownOutput = activeCell.inputArea; // Rendered markdown appears in the input area
+    if (!markdownOutput) {
+      return false;
+    }
 
     // Get the rendered markdown as a widget.
     const markdownOutputWidget = markdownOutput.renderedInput;
     const markdownOutputElement = markdownOutputWidget.node;
 
-    const firstOutputElementChild = markdownOutputElement.firstElementChild as HTMLElement;
+    const firstOutputElementChild =
+      markdownOutputElement.firstElementChild as HTMLElement;
     if (firstOutputElementChild === null) {
       return false;
     }
@@ -259,7 +331,7 @@ export class CellToolbarTracker implements IDisposable {
       const toolbarRect = this._cellToolbarRect(activeCell);
       if (toolbarRect) {
         const { left: toolbarLeft, bottom: toolbarBottom } = toolbarRect;
-        return Array.from(outputs).some(output => {
+        return some(outputs, output => {
           const node = output.firstElementChild;
           if (node) {
             const range = new Range();
@@ -274,10 +346,8 @@ export class CellToolbarTracker implements IDisposable {
             } else {
               range.selectNode(node);
             }
-            const {
-              right: nodeRight,
-              top: nodeTop
-            } = range.getBoundingClientRect();
+            const { right: nodeRight, top: nodeTop } =
+              range.getBoundingClientRect();
 
             // Note: y-coordinate increases toward the bottom of page
             return nodeRight > toolbarLeft && nodeTop < toolbarBottom;
@@ -292,18 +362,23 @@ export class CellToolbarTracker implements IDisposable {
   private _codeOverlapsToolbar(activeCell: Cell<ICellModel>): boolean {
     const editorWidget = activeCell.editorWidget;
     const editor = activeCell.editor;
+    if (!editorWidget || !editor) {
+      return false;
+    }
+
     if (editor.lineCount < 1) {
       return false; // Nothing in the editor
     }
 
-    const codeMirrorLines = editorWidget.node.getElementsByClassName(
-      'CodeMirror-line'
-    );
+    const codeMirrorLines = editorWidget.node.getElementsByClassName('cm-line');
     if (codeMirrorLines.length < 1) {
       return false; // No lines present
     }
-    const lineRight = codeMirrorLines[0].children[0] // First span under first pre
-      .getBoundingClientRect().right;
+
+    let lineRight = codeMirrorLines[0].getBoundingClientRect().left;
+    const range = document.createRange();
+    range.selectNodeContents(codeMirrorLines[0]);
+    lineRight += range.getBoundingClientRect().width;
 
     const toolbarLeft = this._cellToolbarLeft(activeCell);
 
@@ -311,11 +386,11 @@ export class CellToolbarTracker implements IDisposable {
   }
 
   private _cellEditorWidgetLeft(activeCell: Cell<ICellModel>): number {
-    return activeCell.editorWidget.node.getBoundingClientRect().left;
+    return activeCell.editorWidget?.node.getBoundingClientRect().left ?? 0;
   }
 
   private _cellEditorWidgetRight(activeCell: Cell<ICellModel>): number {
-    return activeCell.editorWidget.node.getBoundingClientRect().right;
+    return activeCell.editorWidget?.node.getBoundingClientRect().right ?? 0;
   }
 
   private _cellToolbarRect(activeCell: Cell<ICellModel>): DOMRect | null {
diff --git a/packages/cell-toolbar/style/base.css b/packages/cell-toolbar/style/base.css
index be137d7117c4..ec96edb81f33 100644
--- a/packages/cell-toolbar/style/base.css
+++ b/packages/cell-toolbar/style/base.css
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 .jp-cell-button .jp-icon3[fill] {
   fill: var(--jp-inverse-layout-color4);
 }
@@ -21,19 +26,15 @@
   right: 8px;
 
   /* Override .jp-Toolbar */
-  background-color: inherit;
+  background-color: transparent;
   border-bottom: inherit;
   box-shadow: inherit;
 }
 
-/* Overrides for mobile view: Move cell toolbar up, don't hide it if it overlaps */
-@media only screen and (max-width: 760px) {
-  .jp-toolbar-overlap .jp-cell-toolbar {
-    display: flex;
-  }
-
-  .jp-cell-toolbar {
-    top: -5px;
+/* Overrides for mobile view hiding cell toolbar */
+@media only screen and (width <= 760px) {
+  .jp-cell-menu.jp-cell-toolbar {
+    display: none;
   }
 }
 
diff --git a/packages/cell-toolbar/style/index.css b/packages/cell-toolbar/style/index.css
index b6ebec450237..71af0bc3a6fd 100644
--- a/packages/cell-toolbar/style/index.css
+++ b/packages/cell-toolbar/style/index.css
@@ -5,9 +5,9 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/cells/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/cell-toolbar/style/index.js b/packages/cell-toolbar/style/index.js
index 4bed55eeed99..1222bcc0b617 100644
--- a/packages/cell-toolbar/style/index.js
+++ b/packages/cell-toolbar/style/index.js
@@ -5,6 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/cells/style/index.js';
diff --git a/packages/cell-toolbar/test/celltoolbartracker.spec.ts b/packages/cell-toolbar/test/celltoolbartracker.spec.ts
index ddff01be718f..efbd265b650f 100644
--- a/packages/cell-toolbar/test/celltoolbartracker.spec.ts
+++ b/packages/cell-toolbar/test/celltoolbartracker.spec.ts
@@ -8,9 +8,9 @@ import {
 } from '@jupyterlab/apputils';
 import { CellBarExtension, CellToolbarTracker } from '@jupyterlab/cell-toolbar';
 import { NotebookPanel } from '@jupyterlab/notebook';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
 import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { IDataConnector } from '@jupyterlab/statedb';
-import { NBTestUtils } from '@jupyterlab/testutils';
 import { ITranslator } from '@jupyterlab/translation';
 import { CommandRegistry } from '@lumino/commands';
 import { Widget } from '@lumino/widgets';
@@ -82,6 +82,7 @@ function testToolbarFactory() {
   });
   const factoryName = 'dummyFactory';
   const translator: ITranslator = {
+    languageCode: 'en',
     load: jest.fn()
   };
 
diff --git a/packages/cell-toolbar/tsconfig.json b/packages/cell-toolbar/tsconfig.json
index b1d06a2080a8..1c22ce4bce35 100644
--- a/packages/cell-toolbar/tsconfig.json
+++ b/packages/cell-toolbar/tsconfig.json
@@ -20,6 +20,9 @@
     },
     {
       "path": "../observables"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/cell-toolbar/tsconfig.test.json b/packages/cell-toolbar/tsconfig.test.json
index afab23d3a570..8167520de55d 100644
--- a/packages/cell-toolbar/tsconfig.test.json
+++ b/packages/cell-toolbar/tsconfig.test.json
@@ -18,25 +18,13 @@
       "path": "../observables"
     },
     {
-      "path": "."
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
+      "path": "../ui-components"
     },
     {
-      "path": "../cells"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../notebook"
+      "path": "."
     },
     {
-      "path": "../observables"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/cells/.vscode/launch.json b/packages/cells/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/cells/.vscode/launch.json
+++ b/packages/cells/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/cells/babel.config.js b/packages/cells/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/cells/babel.config.js
+++ b/packages/cells/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/cells/jest.config.js b/packages/cells/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/cells/jest.config.js
+++ b/packages/cells/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/cells/package.json b/packages/cells/package.json
index 9db2e9665e69..fbeb75368519 100644
--- a/packages/cells/package.json
+++ b/packages/cells/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/cells",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Notebook Cells",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,47 +37,49 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "test:watch": "jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/attachments": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/outputarea": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "marked": "^4.0.17",
-    "react": "^17.0.1"
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/attachments": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/outputarea": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/marked": "^4.0.3",
-    "@types/react": "^17.0.0",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react": "^18.0.26",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/cells/src/celldragutils.ts b/packages/cells/src/celldragutils.ts
index f44ea59a49bf..35a68c5c34ce 100644
--- a/packages/cells/src/celldragutils.ts
+++ b/packages/cells/src/celldragutils.ts
@@ -9,7 +9,6 @@
  * Notebook widgets.
  */
 
-import { each, IterableOrArrayLike } from '@lumino/algorithm';
 import { ICodeCellModel } from './model';
 import { Cell } from './widget';
 import { h, VirtualDOM } from '@lumino/virtualdom';
@@ -66,18 +65,19 @@ export namespace CellDragUtils {
    */
   export function findCell(
     node: HTMLElement,
-    cells: IterableOrArrayLike<Cell>,
+    cells: Iterable<Cell>,
     isCellNode: (node: HTMLElement) => boolean
   ): number {
-    let cellIndex: number = -1;
+    let cellIndex = -1;
     while (node && node.parentElement) {
       if (isCellNode(node)) {
-        each(cells, (cell, index) => {
+        let index = -1;
+        for (const cell of cells) {
           if (cell.node === node) {
-            cellIndex = index;
-            return false;
+            cellIndex = ++index;
+            break;
           }
-        });
+        }
         break;
       }
       node = node.parentElement;
@@ -97,9 +97,9 @@ export namespace CellDragUtils {
   ): ICellTargetArea {
     let targetArea: ICellTargetArea;
     if (cell) {
-      if (cell.editorWidget.node.contains(target)) {
+      if (cell.editorWidget?.node.contains(target)) {
         targetArea = 'input';
-      } else if (cell.promptNode.contains(target)) {
+      } else if (cell.promptNode?.contains(target)) {
         targetArea = 'prompt';
       } else {
         targetArea = 'cell';
@@ -153,7 +153,10 @@ export namespace CellDragUtils {
       promptNumber = '';
     }
 
-    const cellContent = activeCell.model.value.text.split('\n')[0].slice(0, 26);
+    const cellContent = activeCell.model.sharedModel
+      .getSource()
+      .split('\n')[0]
+      .slice(0, 26);
     if (count > 1) {
       if (promptNumber !== '') {
         return VirtualDOM.realize(
diff --git a/packages/cells/src/collapser.tsx b/packages/cells/src/collapser.tsx
index a074d9b455ec..3274c7221615 100644
--- a/packages/cells/src/collapser.tsx
+++ b/packages/cells/src/collapser.tsx
@@ -3,7 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ReactWidget } from '@jupyterlab/apputils';
+import { ReactWidget } from '@jupyterlab/ui-components';
 import { ElementExt } from '@lumino/domutils';
 
 import * as React from 'react';
diff --git a/packages/cells/src/index.ts b/packages/cells/src/index.ts
index 733a31bf7f45..8a7155f500c0 100644
--- a/packages/cells/src/index.ts
+++ b/packages/cells/src/index.ts
@@ -13,4 +13,5 @@ export * from './headerfooter';
 export * from './inputarea';
 export * from './model';
 export * from './placeholder';
+export * from './searchprovider';
 export * from './widget';
diff --git a/packages/cells/src/inputarea.ts b/packages/cells/src/inputarea.ts
index 51f62f8fdf66..79bb44d57467 100644
--- a/packages/cells/src/inputarea.ts
+++ b/packages/cells/src/inputarea.ts
@@ -9,8 +9,6 @@ import { Widget } from '@lumino/widgets';
 
 import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
 
-import { CodeMirrorEditorFactory } from '@jupyterlab/codemirror';
-
 import { ICellModel } from './model';
 
 /**
@@ -47,28 +45,25 @@ export class InputArea extends Widget {
   constructor(options: InputArea.IOptions) {
     super();
     this.addClass(INPUT_AREA_CLASS);
-    const model = (this.model = options.model);
-    const contentFactory = (this.contentFactory =
-      options.contentFactory || InputArea.defaultContentFactory);
+    const { contentFactory, editorOptions, model } = options;
+    this.model = model;
+    this.contentFactory = contentFactory;
 
     // Prompt
     const prompt = (this._prompt = contentFactory.createInputPrompt());
     prompt.addClass(INPUT_AREA_PROMPT_CLASS);
 
     // Editor
-    const editorOptions = {
-      model,
+    const editor = (this._editor = new CodeEditorWrapper({
       factory: contentFactory.editorFactory,
-      updateOnShow: options.updateOnShow
-    };
-    const editor = (this._editor = new CodeEditorWrapper(editorOptions));
+      model,
+      editorOptions
+    }));
     editor.addClass(INPUT_AREA_EDITOR_CLASS);
 
     const layout = (this.layout = new PanelLayout());
     layout.addWidget(prompt);
-    if (!options.placeholder) {
-      layout.addWidget(editor);
-    }
+    layout.addWidget(editor);
   }
 
   /**
@@ -142,7 +137,7 @@ export class InputArea extends Widget {
   /**
    * Dispose of the resources held by the widget.
    */
-  dispose() {
+  dispose(): void {
     // Do nothing if already disposed.
     if (this.isDisposed) {
       return;
@@ -173,20 +168,13 @@ export namespace InputArea {
 
     /**
      * The content factory used by the widget to create children.
-     *
-     * Defaults to one that uses CodeMirror.
      */
-    contentFactory?: IContentFactory;
+    contentFactory: IContentFactory;
 
     /**
-     * Whether to send an update request to the editor when it is shown.
+     * Editor options
      */
-    updateOnShow?: boolean;
-
-    /**
-     * Whether this input area is a placeholder for future rendering.
-     */
-    placeholder?: boolean;
+    editorOptions?: Omit<CodeEditor.IOptions, 'host' | 'model'>;
   }
 
   /**
@@ -219,8 +207,8 @@ export namespace InputArea {
     /**
      * Construct a `ContentFactory`.
      */
-    constructor(options: ContentFactory.IOptions = {}) {
-      this._editor = options.editorFactory || defaultEditorFactory;
+    constructor(options: ContentFactory.IOptions) {
+      this._editor = options.editorFactory;
     }
 
     /**
@@ -254,27 +242,9 @@ export namespace InputArea {
        * If this is not passed, a default CodeMirror editor factory
        * will be used.
        */
-      editorFactory?: CodeEditor.Factory;
+      editorFactory: CodeEditor.Factory;
     }
   }
-
-  /**
-   * A function to create the default CodeMirror editor factory.
-   */
-  function _createDefaultEditorFactory(): CodeEditor.Factory {
-    const editorServices = new CodeMirrorEditorFactory();
-    return editorServices.newInlineEditor;
-  }
-
-  /**
-   * The default editor factory singleton based on CodeMirror.
-   */
-  export const defaultEditorFactory: CodeEditor.Factory = _createDefaultEditorFactory();
-
-  /**
-   * The default `ContentFactory` instance.
-   */
-  export const defaultContentFactory = new ContentFactory({});
 }
 
 /** ****************************************************************************
diff --git a/packages/cells/src/model.ts b/packages/cells/src/model.ts
index 766285a341af..91383ad3f957 100644
--- a/packages/cells/src/model.ts
+++ b/packages/cells/src/model.ts
@@ -3,8 +3,6 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { JSONExt, JSONObject, JSONValue } from '@lumino/coreutils';
-
 import { ISignal, Signal } from '@lumino/signaling';
 
 import { AttachmentsModel, IAttachmentsModel } from '@jupyterlab/attachments';
@@ -15,20 +13,24 @@ import { IChangedArgs } from '@jupyterlab/coreutils';
 
 import * as nbformat from '@jupyterlab/nbformat';
 
-import * as models from '@jupyterlab/shared-models';
+import { ObservableValue } from '@jupyterlab/observables';
 
-import { UUID } from '@lumino/coreutils';
+import { IOutputAreaModel, OutputAreaModel } from '@jupyterlab/outputarea';
 
 import {
-  IModelDB,
-  IObservableJSON,
-  IObservableMap,
-  IObservableValue,
-  ObservableValue
-} from '@jupyterlab/observables';
-
-import { IOutputAreaModel, OutputAreaModel } from '@jupyterlab/outputarea';
-const globalModelDBMutex = models.createMutex();
+  CellChange,
+  createMutex,
+  createStandaloneCell,
+  IMapChange,
+  ISharedAttachmentsCell,
+  ISharedCell,
+  ISharedCodeCell,
+  ISharedMarkdownCell,
+  ISharedRawCell,
+  YCodeCell
+} from '@jupyter/ydoc';
+
+const globalModelDBMutex = createMutex();
 
 /**
  * The definition of a model object for a cell.
@@ -52,7 +54,10 @@ export interface ICellModel extends CodeEditor.IModel {
   /**
    * A signal emitted when a model state changes.
    */
-  readonly stateChanged: ISignal<ICellModel, IChangedArgs<any>>;
+  readonly stateChanged: ISignal<
+    ICellModel,
+    IChangedArgs<boolean, boolean, any>
+  >;
 
   /**
    * Whether the cell is trusted.
@@ -61,10 +66,49 @@ export interface ICellModel extends CodeEditor.IModel {
 
   /**
    * The metadata associated with the cell.
+   *
+   * ### Notes
+   * This is a copy of the metadata. Changing a part of it
+   * won't affect the model.
+   * As this returns a copy of all metadata, it is advised to
+   * use `getMetadata` to speed up the process of getting a single key.
+   */
+  readonly metadata: Omit<nbformat.IBaseCellMetadata, 'trusted'>;
+
+  /**
+   * Signal emitted when cell metadata changes.
    */
-  readonly metadata: IObservableJSON;
+  readonly metadataChanged: ISignal<ICellModel, IMapChange>;
 
-  readonly sharedModel: models.ISharedCell & models.ISharedText;
+  /**
+   * The cell shared model.
+   */
+  readonly sharedModel: ISharedCell;
+
+  /**
+   * Delete a metadata.
+   *
+   * @param key Metadata key
+   */
+  deleteMetadata(key: string): void;
+
+  /**
+   * Get a metadata
+   *
+   * ### Notes
+   * This returns a copy of the key value.
+   *
+   * @param key Metadata key
+   */
+  getMetadata(key: string): any;
+
+  /**
+   * Set a metadata
+   *
+   * @param key Metadata key
+   * @param value Metadata value
+   */
+  setMetadata(key: string, value: any): void;
 
   /**
    * Serialize the model to JSON.
@@ -118,6 +162,11 @@ export interface ICodeCellModel extends ICellModel {
    * Clear execution, outputs, and related metadata
    */
   clearExecution(): void;
+
+  /**
+   * The code cell shared model
+   */
+  readonly sharedModel: ISharedCodeCell;
 }
 
 /**
@@ -167,76 +216,51 @@ export function isRawCellModel(model: ICellModel): model is IRawCellModel {
 /**
  * An implementation of the cell model.
  */
-export class CellModel extends CodeEditor.Model implements ICellModel {
-  /**
-   * Construct a cell model from optional cell content.
-   */
-  constructor(options: CellModel.IOptions) {
+export abstract class CellModel extends CodeEditor.Model implements ICellModel {
+  constructor(options: CellModel.IOptions<ISharedCell> = {}) {
+    const { cell_type, sharedModel, ...others } = options;
     super({
-      modelDB: options.modelDB,
-      id: options.id || (options.cell?.id as string) || UUID.uuid4()
+      sharedModel:
+        sharedModel ??
+        createStandaloneCell({
+          cell_type: cell_type ?? 'raw',
+          id: options.id
+        }),
+      ...others
     });
+    this.standaloneModel = typeof options.sharedModel === 'undefined';
+    this.trusted = !!this.getMetadata('trusted') || !!options.trusted;
 
-    this.value.changed.connect(this.onGenericChange, this);
-
-    const cellType = this.modelDB.createValue('type');
-    cellType.set(this.type);
-
-    const observableMetadata = this.modelDB.createMap('metadata');
-    observableMetadata.changed.connect(this.onModelDBMetadataChange, this);
-    observableMetadata.changed.connect(this.onGenericChange, this);
-
-    const cell = options.cell;
-    const trusted = this.modelDB.createValue('trusted');
-    trusted.changed.connect(this.onTrustedChanged, this);
-
-    if (!cell) {
-      trusted.set(false);
-      return;
-    }
-    trusted.set(!!cell.metadata['trusted']);
-    delete cell.metadata['trusted'];
-
-    // Set the text value, normalizing line endings to \n
-    if (Array.isArray(cell.source)) {
-      this.value.text = cell.source
-        .map(s => s.replace(/\r\n/g, '\n').replace(/\r/g, '\n'))
-        .join('');
-    } else {
-      this.value.text = cell.source.replace(/\r\n/g, '\n').replace(/\r/g, '\n');
-    }
-    const metadata = JSONExt.deepCopy(cell.metadata);
-    if (this.type !== 'raw') {
-      delete metadata['format'];
-    }
-    if (this.type !== 'code') {
-      delete metadata['collapsed'];
-      delete metadata['scrolled'];
-    }
-
-    for (const key in metadata) {
-      observableMetadata.set(key, metadata[key]);
-    }
+    this.sharedModel.changed.connect(this.onGenericChange, this);
+    this.sharedModel.metadataChanged.connect(this._onMetadataChanged, this);
   }
 
+  readonly sharedModel: ISharedCell;
+
   /**
    * The type of cell.
    */
-  get type(): nbformat.CellType {
-    // This getter really should be abstract, but our current constructor
-    // depends on .type working
-    return 'raw';
-  }
+  abstract get type(): nbformat.CellType;
 
   /**
    * A signal emitted when the state of the model changes.
    */
   readonly contentChanged = new Signal<this, void>(this);
 
+  /**
+   * Signal emitted when cell metadata changes.
+   */
+  get metadataChanged(): ISignal<ICellModel, IMapChange> {
+    return this._metadataChanged;
+  }
+
   /**
    * A signal emitted when a model state changes.
    */
-  readonly stateChanged = new Signal<this, IChangedArgs<any>>(this);
+  readonly stateChanged = new Signal<
+    this,
+    IChangedArgs<any, any, 'isDirty' | 'trusted' | 'executionCount'>
+  >(this);
 
   /**
    * The id for the cell.
@@ -248,45 +272,34 @@ export class CellModel extends CodeEditor.Model implements ICellModel {
   /**
    * The metadata associated with the cell.
    */
-  get metadata(): IObservableJSON {
-    return this.modelDB.get('metadata') as IObservableJSON;
+  get metadata(): Omit<nbformat.IBaseCellMetadata, 'trusted'> {
+    return this.sharedModel.metadata;
   }
 
   /**
-   * Get the trusted state of the model.
+   * The trusted state of the model.
    */
   get trusted(): boolean {
-    return this.modelDB.getValue('trusted') as boolean;
+    return this._trusted;
   }
-
-  /**
-   * Set the trusted state of the model.
-   */
   set trusted(newValue: boolean) {
     const oldValue = this.trusted;
-    if (oldValue === newValue) {
-      return;
+    if (oldValue !== newValue) {
+      this._trusted = newValue;
+      this.onTrustedChanged(this, { newValue, oldValue });
     }
-    this.modelDB.setValue('trusted', newValue);
   }
 
   /**
-   * Serialize the model to JSON.
+   * Dispose of the resources held by the model.
    */
-  toJSON(): nbformat.ICell {
-    const metadata: nbformat.IBaseCellMetadata = Object.create(null);
-    for (const key of this.metadata.keys()) {
-      const value = JSON.parse(JSON.stringify(this.metadata.get(key)));
-      metadata[key] = value as JSONValue;
-    }
-    if (this.trusted) {
-      metadata['trusted'] = true;
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
     }
-    return {
-      cell_type: this.type,
-      source: this.value.text,
-      metadata
-    } as nbformat.ICell;
+    this.sharedModel.changed.disconnect(this.onGenericChange, this);
+    this.sharedModel.metadataChanged.disconnect(this._onMetadataChanged, this);
+    super.dispose();
   }
 
   /**
@@ -295,136 +308,52 @@ export class CellModel extends CodeEditor.Model implements ICellModel {
    * The default implementation is a no-op.
    */
   onTrustedChanged(
-    trusted: IObservableValue,
+    trusted: CellModel,
     args: ObservableValue.IChangedArgs
   ): void {
     /* no-op */
   }
 
   /**
-   * When we initialize a cell model, we create a standalone model that cannot be shared in a YNotebook.
-   * Call this function to re-initialize the local representation based on a fresh shared model (e.g. models.YFile or models.YCodeCell).
+   * Delete a metadata
    *
-   * @param sharedModel
-   * @param reinitialize Whether to reinitialize the shared model.
+   * @param key Metadata key
    */
-  switchSharedModel(
-    sharedModel: models.ISharedCodeCell,
-    reinitialize?: boolean
-  ): void {
-    if (reinitialize) {
-      const newValue = sharedModel.getMetadata();
-      if (newValue) {
-        this._updateModelDBMetadata(newValue);
-      }
-    }
-    super.switchSharedModel(sharedModel, reinitialize);
+  deleteMetadata(key: string): any {
+    return this.sharedModel.deleteMetadata(key);
   }
 
   /**
-   * Handle a change to the cell metadata modelDB and reflect it in the shared model.
+   * Get a metadata
+   *
+   * ### Notes
+   * This returns a copy of the key value.
+   *
+   * @param key Metadata key
    */
-  protected onModelDBMetadataChange(
-    sender: IObservableJSON,
-    event: IObservableJSON.IChangedArgs
-  ): void {
-    const metadata = this.sharedModel.getMetadata();
-    globalModelDBMutex(() => {
-      switch (event.type) {
-        case 'add':
-          this._changeCellMetadata(metadata, event);
-          break;
-        case 'change':
-          this._changeCellMetadata(metadata, event);
-          break;
-        case 'remove':
-          delete metadata[event.key];
-          break;
-        default:
-          throw new Error(`Invalid event type: ${event.type}`);
-      }
-      this.sharedModel.setMetadata(metadata);
-    });
+  getMetadata(key: string): any {
+    return this.sharedModel.getMetadata(key);
   }
 
   /**
-   * Change the cell metadata for a given event.
+   * Set a metadata
    *
-   * @param metadata The cell metadata.
-   * @param event The event to handle.
+   * @param key Metadata key
+   * @param value Metadata value
    */
-  private _changeCellMetadata(
-    metadata: Partial<nbformat.IBaseCellMetadata>,
-    event: IObservableJSON.IChangedArgs
-  ): void {
-    switch (event.key) {
-      case 'jupyter':
-        metadata.jupyter = event.newValue as any;
-        break;
-      case 'collapsed':
-        metadata.collapsed = event.newValue as any;
-        break;
-      case 'name':
-        metadata.name = event.newValue as any;
-        break;
-      case 'scrolled':
-        metadata.scrolled = event.newValue as any;
-        break;
-      case 'tags':
-        metadata.tags = event.newValue as any;
-        break;
-      case 'trusted':
-        metadata.trusted = event.newValue as any;
-        break;
-      default:
-        // The default is applied for custom metadata that are not
-        // defined in the official nbformat but which are defined
-        // by the user.
-        metadata[event.key] = event.newValue as any;
+  setMetadata(key: string, value: any): void {
+    if (typeof value === 'undefined') {
+      this.sharedModel.deleteMetadata(key);
+    } else {
+      this.sharedModel.setMetadata(key, value);
     }
   }
 
   /**
-   * Handle a change to the cell shared model and reflect it in modelDB.
-   * We update the modeldb metadata when the shared model changes.
-   *
-   * This method overrides the CodeEditor protected _onSharedModelChanged
-   * so we first call super._onSharedModelChanged
-   *
-   * @override CodeEditor._onSharedModelChanged
+   * Serialize the model to JSON.
    */
-  protected _onSharedModelChanged(
-    sender: models.ISharedCodeCell,
-    change: models.CellChange<nbformat.IBaseCellMetadata>
-  ): void {
-    super._onSharedModelChanged(sender, change);
-    globalModelDBMutex(() => {
-      if (change.metadataChange) {
-        const newValue = this.sharedModel.getMetadata();
-        if (newValue) {
-          this._updateModelDBMetadata(newValue);
-        }
-      }
-    });
-  }
-
-  private _updateModelDBMetadata(
-    metadata: Partial<nbformat.IBaseCellMetadata>
-  ): void {
-    this.metadata.clear();
-    Object.entries(metadata).forEach(([key, value]) => {
-      switch (key) {
-        case 'trusted':
-          this.metadata.set('trusted', value);
-          this.trusted = value as boolean;
-          break;
-        default:
-          // The default is applied for custom metadata that are not
-          // defined in the official nbformat but which are defined
-          // by the user.
-          this.metadata.set(key, value);
-      }
-    });
+  toJSON(): nbformat.ICell {
+    return this.sharedModel.toJSON();
   }
 
   /**
@@ -433,7 +362,13 @@ export class CellModel extends CodeEditor.Model implements ICellModel {
   protected onGenericChange(): void {
     this.contentChanged.emit(void 0);
   }
-  sharedModel: models.ISharedCell;
+
+  private _onMetadataChanged(sender: ISharedCell, change: IMapChange) {
+    this._metadataChanged.emit(change);
+  }
+
+  private _metadataChanged = new Signal<this, IMapChange>(this);
+  private _trusted = false;
 }
 
 /**
@@ -443,48 +378,48 @@ export namespace CellModel {
   /**
    * The options used to initialize a `CellModel`.
    */
-  export interface IOptions {
+  export interface IOptions<T extends ISharedCell> {
     /**
-     * The source cell data.
+     * A unique identifier for the model.
      */
-    cell?: nbformat.IBaseCell;
+    id?: string;
 
     /**
-     * An IModelDB in which to store cell data.
+     * The cell shared model.
      */
-    modelDB?: IModelDB;
+    sharedModel?: T;
 
     /**
-     * A unique identifier for this cell.
+     * The cell type
      */
-    id?: string;
+    cell_type?: string;
+
+    /**
+     * Whether the cell is trusted or not.
+     */
+    trusted?: boolean;
   }
 }
 
 /**
  * A base implementation for cell models with attachments.
  */
-export class AttachmentsCellModel extends CellModel {
+export abstract class AttachmentsCellModel extends CellModel {
   /**
    * Construct a new cell with optional attachments.
    */
-  constructor(options: AttachmentsCellModel.IOptions) {
+  constructor(options: AttachmentsCellModel.IOptions<ISharedCell>) {
     super(options);
     const factory =
-      options.contentFactory || AttachmentsCellModel.defaultContentFactory;
-    let attachments: nbformat.IAttachments | undefined;
-    const cell = options.cell;
-    if (cell && (cell.cell_type === 'raw' || cell.cell_type === 'markdown')) {
-      attachments = (cell as nbformat.IRawCell | nbformat.IMarkdownCell)
-        .attachments;
-    }
-
-    this._attachments = factory.createAttachmentsModel({
-      values: attachments,
-      modelDB: this.modelDB
-    });
+      options.contentFactory ?? AttachmentsCellModel.defaultContentFactory;
+    const values = (
+      this.sharedModel as ISharedAttachmentsCell
+    ).getAttachments();
+    this._attachments = factory.createAttachmentsModel({ values });
     this._attachments.stateChanged.connect(this.onGenericChange, this);
-    this._attachments.changed.connect(this.onModelDBAttachmentsChange, this);
+    this._attachments.changed.connect(this._onAttachmentsChange, this);
+
+    this.sharedModel.changed.connect(this._onSharedModelChanged, this);
   }
 
   /**
@@ -495,69 +430,50 @@ export class AttachmentsCellModel extends CellModel {
   }
 
   /**
-   * Serialize the model to JSON.
+   * Dispose of the resources held by the model.
    */
-  toJSON(): nbformat.IRawCell | nbformat.IMarkdownCell {
-    const cell = super.toJSON() as nbformat.IRawCell | nbformat.IMarkdownCell;
-    if (this.attachments.length) {
-      cell.attachments = this.attachments.toJSON();
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
     }
-    return cell;
+    this._attachments.stateChanged.disconnect(this.onGenericChange, this);
+    this._attachments.changed.disconnect(this._onAttachmentsChange, this);
+    this._attachments.dispose();
+    this.sharedModel.changed.disconnect(this._onSharedModelChanged, this);
+    super.dispose();
   }
 
-  public switchSharedModel(
-    sharedModel: models.ISharedCodeCell,
-    reinitialize?: boolean
-  ): void {
-    if (reinitialize) {
-      const attachments = ((sharedModel as unknown) as models.YRawCell).getAttachments();
-      this._attachments.fromJSON(attachments ?? {});
-    }
-    super.switchSharedModel(sharedModel, reinitialize);
+  /**
+   * Serialize the model to JSON.
+   */
+  toJSON(): nbformat.IRawCell | nbformat.IMarkdownCell {
+    return super.toJSON() as nbformat.IRawCell | nbformat.IMarkdownCell;
   }
 
   /**
    * Handle a change to the cell outputs modelDB and reflect it in the shared model.
    */
-  protected onModelDBAttachmentsChange(
+  private _onAttachmentsChange(
     sender: IAttachmentsModel,
     event: IAttachmentsModel.ChangedArgs
   ): void {
-    const sharedModel = this.sharedModel as models.YRawCell;
-    globalModelDBMutex(() => {
-      switch (event.type) {
-        case 'add':
-        case 'change':
-        case 'remove':
-          sharedModel.setAttachments(sender.toJSON());
-          break;
-        default:
-          throw new Error(`Invalid event type: ${event.type}`);
-      }
-    });
+    const cell = this.sharedModel as ISharedAttachmentsCell;
+    globalModelDBMutex(() => cell.setAttachments(sender.toJSON()));
   }
 
   /**
-   * Handle a change to the output shared model and reflect it in modelDB.
-   * We update the modeldb metadata when the nbcell changes.
-   *
-   * This method overrides the CellModel protected _onSharedModelChanged
-   * so we first call super._onSharedModelChanged
-   *
-   * @override CellModel._onSharedModelChanged
+   * Handle a change to the code cell value.
    */
-  protected _onSharedModelChanged(
-    sender: models.ISharedCodeCell,
-    change: models.CellChange<nbformat.IBaseCellMetadata>
+  private _onSharedModelChanged(
+    slot: ISharedAttachmentsCell,
+    change: CellChange
   ): void {
-    super._onSharedModelChanged(sender, change);
-    const sharedModel = this.sharedModel as models.YRawCell;
-    globalModelDBMutex(() => {
-      if (change.attachmentsChange) {
-        const attachments = sharedModel.getAttachments();
-        this._attachments.fromJSON(attachments ?? {});
-      }
-    });
+    if (change.attachmentsChange) {
+      const cell = this.sharedModel as ISharedAttachmentsCell;
+      globalModelDBMutex(() =>
+        this._attachments.fromJSON(cell.getAttachments() ?? {})
+      );
+    }
   }
 
   private _attachments: IAttachmentsModel;
@@ -570,7 +486,8 @@ export namespace AttachmentsCellModel {
   /**
    * The options used to initialize a `AttachmentsCellModel`.
    */
-  export interface IOptions extends CellModel.IOptions {
+  export interface IOptions<T extends ISharedCell>
+    extends CellModel.IOptions<T> {
     /**
      * The factory for attachment model creation.
      */
@@ -613,6 +530,21 @@ export namespace AttachmentsCellModel {
  * An implementation of a raw cell model.
  */
 export class RawCellModel extends AttachmentsCellModel {
+  /**
+   * Construct a raw cell model from optional shared model.
+   */
+  constructor(
+    options: Omit<
+      AttachmentsCellModel.IOptions<ISharedRawCell>,
+      'cell_type'
+    > = {}
+  ) {
+    super({
+      cell_type: 'raw',
+      ...options
+    });
+  }
+
   /**
    * The type of the cell.
    */
@@ -624,9 +556,7 @@ export class RawCellModel extends AttachmentsCellModel {
    * Serialize the model to JSON.
    */
   toJSON(): nbformat.IRawCell {
-    const cell = super.toJSON() as nbformat.IRawCell;
-    cell.id = this.id;
-    return cell;
+    return super.toJSON() as nbformat.IRawCell;
   }
 }
 
@@ -635,10 +565,18 @@ export class RawCellModel extends AttachmentsCellModel {
  */
 export class MarkdownCellModel extends AttachmentsCellModel {
   /**
-   * Construct a markdown cell model from optional cell content.
+   * Construct a markdown cell model from optional shared model.
    */
-  constructor(options: CellModel.IOptions) {
-    super(options);
+  constructor(
+    options: Omit<
+      AttachmentsCellModel.IOptions<ISharedMarkdownCell>,
+      'cell_type'
+    > = {}
+  ) {
+    super({
+      cell_type: 'markdown',
+      ...options
+    });
     // Use the Github-flavored markdown mode.
     this.mimeType = 'text/x-ipythongfm';
   }
@@ -654,9 +592,7 @@ export class MarkdownCellModel extends AttachmentsCellModel {
    * Serialize the model to JSON.
    */
   toJSON(): nbformat.IMarkdownCell {
-    const cell = super.toJSON() as nbformat.IMarkdownCell;
-    cell.id = this.id;
-    return cell;
+    return super.toJSON() as nbformat.IMarkdownCell;
   }
 }
 
@@ -667,77 +603,21 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
   /**
    * Construct a new code cell with optional original cell content.
    */
-  constructor(options: CodeCellModel.IOptions) {
-    super(options);
+  constructor(options: CodeCellModel.IOptions = {}) {
+    super({
+      cell_type: 'code',
+      ...options
+    });
+
     const factory =
-      options.contentFactory || CodeCellModel.defaultContentFactory;
+      options?.contentFactory ?? CodeCellModel.defaultContentFactory;
     const trusted = this.trusted;
-    const cell = options.cell as nbformat.ICodeCell;
-    let outputs: nbformat.IOutput[] = [];
-    const executionCount = this.modelDB.createValue('executionCount');
-    if (!executionCount.get()) {
-      if (cell && cell.cell_type === 'code') {
-        executionCount.set(cell.execution_count || null);
-        outputs = cell.outputs ?? [];
-        // If execution count is not null presume the input code was the latest executed
-        // TODO load from the notebook file when the dirty state is stored in it
-        if (cell.execution_count != null) {
-          // True if execution_count is null or undefined
-          this._executedCode = this.value.text.trim();
-        }
-      } else {
-        executionCount.set(null);
-      }
-    }
-    this.value.changed.connect(this._onValueChanged, this);
-
-    executionCount.changed.connect(this._onExecutionCountChanged, this);
-
-    globalModelDBMutex(() => {
-      const sharedCell = this.sharedModel as models.ISharedCodeCell;
-      sharedCell.setOutputs(outputs);
-    });
+    const outputs = this.sharedModel.getOutputs();
     this._outputs = factory.createOutputArea({ trusted, values: outputs });
-    this._outputs.changed.connect(this.onGenericChange, this);
-    this._outputs.changed.connect(this.onModelDBOutputsChange, this);
-
-    // We keep `collapsed` and `jupyter.outputs_hidden` metadata in sync, since
-    // they are redundant in nbformat 4.4. See
-    // https://github.com/jupyter/nbformat/issues/137
-    this.metadata.changed.connect(Private.collapseChanged, this);
-
-    // Sync `collapsed` and `jupyter.outputs_hidden` for the first time, giving
-    // preference to `collapsed`.
-    if (this.metadata.has('collapsed')) {
-      const collapsed = this.metadata.get('collapsed') as boolean | undefined;
-      Private.collapseChanged(this.metadata, {
-        type: 'change',
-        key: 'collapsed',
-        oldValue: collapsed,
-        newValue: collapsed
-      });
-    } else if (this.metadata.has('jupyter')) {
-      const jupyter = this.metadata.get('jupyter') as JSONObject;
-      if (jupyter.hasOwnProperty('outputs_hidden')) {
-        Private.collapseChanged(this.metadata, {
-          type: 'change',
-          key: 'jupyter',
-          oldValue: jupyter,
-          newValue: jupyter
-        });
-      }
-    }
-  }
 
-  public switchSharedModel(
-    sharedModel: models.ISharedCodeCell,
-    reinitialize?: boolean
-  ): void {
-    if (reinitialize) {
-      this.clearExecution();
-      sharedModel.getOutputs().forEach(output => this._outputs.add(output));
-    }
-    super.switchSharedModel(sharedModel, reinitialize);
+    this.sharedModel.changed.connect(this._onSharedModelChanged, this);
+    this._outputs.changed.connect(this.onGenericChange, this);
+    this._outputs.changed.connect(this.onOutputsChange, this);
   }
 
   /**
@@ -751,16 +631,10 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
    * The execution count of the cell.
    */
   get executionCount(): nbformat.ExecutionCount {
-    return this.modelDB.has('executionCount')
-      ? (this.modelDB.getValue('executionCount') as nbformat.ExecutionCount)
-      : null;
+    return this.sharedModel.execution_count || null;
   }
   set executionCount(newValue: nbformat.ExecutionCount) {
-    const oldValue = this.executionCount;
-    if (newValue === oldValue) {
-      return;
-    }
-    this.modelDB.setValue('executionCount', newValue || null);
+    this.sharedModel.execution_count = newValue || null;
   }
 
   /**
@@ -776,34 +650,21 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
   }
 
   /**
-   * Set whether the cell is dirty or not.
+   * The cell outputs.
    */
-  private _setDirty(v: boolean) {
-    if (v !== this._isDirty) {
-      if (!v) {
-        this._executedCode = this.value.text.trim();
-      }
-      this._isDirty = v;
-      this.stateChanged.emit({
-        name: 'isDirty',
-        oldValue: !v,
-        newValue: v
-      });
-    }
+  get outputs(): IOutputAreaModel {
+    return this._outputs;
   }
 
+  readonly sharedModel: ISharedCodeCell;
+
   clearExecution(): void {
     this.outputs.clear();
     this.executionCount = null;
     this._setDirty(false);
-    this.metadata.delete('execution');
-  }
-
-  /**
-   * The cell outputs.
-   */
-  get outputs(): IOutputAreaModel {
-    return this._outputs;
+    this.sharedModel.deleteMetadata('execution');
+    // We trust this cell as it no longer has any outputs.
+    this.trusted = true;
   }
 
   /**
@@ -813,27 +674,19 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
     if (this.isDisposed) {
       return;
     }
+    this.sharedModel.changed.disconnect(this._onSharedModelChanged, this);
+    this._outputs.changed.disconnect(this.onGenericChange, this);
+    this._outputs.changed.disconnect(this.onOutputsChange, this);
     this._outputs.dispose();
     this._outputs = null!;
     super.dispose();
   }
 
-  /**
-   * Serialize the model to JSON.
-   */
-  toJSON(): nbformat.ICodeCell {
-    const cell = super.toJSON() as nbformat.ICodeCell;
-    cell.execution_count = this.executionCount || null;
-    cell.outputs = this.outputs.toJSON();
-    cell.id = this.id;
-    return cell;
-  }
-
   /**
    * Handle a change to the trusted state.
    */
   onTrustedChanged(
-    trusted: IObservableValue,
+    trusted: CellModel,
     args: ObservableValue.IChangedArgs
   ): void {
     const newTrusted = args.newValue as boolean;
@@ -841,35 +694,38 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
       this._outputs.trusted = newTrusted;
     }
     if (newTrusted) {
-      const codeCell = this.sharedModel as models.YCodeCell;
+      const codeCell = this.sharedModel as YCodeCell;
       const metadata = codeCell.getMetadata();
       metadata.trusted = true;
       codeCell.setMetadata(metadata);
     }
     this.stateChanged.emit({
       name: 'trusted',
-      oldValue: args.oldValue,
+      oldValue: args.oldValue as boolean,
       newValue: newTrusted
     });
   }
 
+  /**
+   * Serialize the model to JSON.
+   */
+  toJSON(): nbformat.ICodeCell {
+    return super.toJSON() as nbformat.ICodeCell;
+  }
+
   /**
    * Handle a change to the cell outputs modelDB and reflect it in the shared model.
    */
-  protected onModelDBOutputsChange(
+  protected onOutputsChange(
     sender: IOutputAreaModel,
     event: IOutputAreaModel.ChangedArgs
   ): void {
-    const codeCell = this.sharedModel as models.YCodeCell;
+    const codeCell = this.sharedModel as YCodeCell;
     globalModelDBMutex(() => {
       switch (event.type) {
         case 'add': {
           const outputs = event.newValues.map(output => output.toJSON());
-          codeCell.updateOutputs(
-            event.newIndex,
-            event.newIndex + outputs.length,
-            outputs
-          );
+          codeCell.updateOutputs(event.newIndex, event.newIndex, outputs);
           break;
         }
         case 'set': {
@@ -893,67 +749,56 @@ export class CodeCellModel extends CellModel implements ICodeCellModel {
   /**
    * Handle a change to the code cell value.
    */
-  private _onValueChanged(): void {
-    if (this.executionCount !== null) {
-      this._setDirty(this._executedCode !== this.value.text.trim());
+  private _onSharedModelChanged(
+    slot: ISharedCodeCell,
+    change: CellChange
+  ): void {
+    if (change.outputsChange) {
+      globalModelDBMutex(() => {
+        this.outputs.clear();
+        slot.getOutputs().forEach(output => this._outputs.add(output));
+      });
     }
-  }
 
-  /**
-   * Handle a change to the output shared model and reflect it in modelDB.
-   * We update the modeldb metadata when the nbcell changes.
-   *
-   * This method overrides the CellModel protected _onSharedModelChanged
-   * so we first call super._onSharedModelChanged
-   *
-   * @override CellModel._onSharedModelChanged
-   */
-  protected _onSharedModelChanged(
-    sender: models.ISharedCodeCell,
-    change: models.CellChange<nbformat.IBaseCellMetadata>
-  ): void {
-    super._onSharedModelChanged(sender, change);
-    globalModelDBMutex(() => {
-      if (change.outputsChange) {
-        this.clearExecution();
-        sender.getOutputs().forEach(output => this._outputs.add(output));
+    if (change.executionCountChange) {
+      if (
+        change.executionCountChange.newValue &&
+        (this.isDirty || !change.executionCountChange.oldValue)
+      ) {
+        this._setDirty(false);
       }
+      this.stateChanged.emit({
+        name: 'executionCount',
+        oldValue: change.executionCountChange.oldValue,
+        newValue: change.executionCountChange.newValue
+      });
+    }
 
-      if (change.executionCountChange) {
-        this.executionCount = change.executionCountChange.newValue
-          ? change.executionCountChange.newValue
-          : null;
-      }
-    });
+    if (change.sourceChange && this.executionCount !== null) {
+      this._setDirty(
+        this._executedCode !== this.sharedModel.getSource().trim()
+      );
+    }
   }
 
   /**
-   * Handle a change to the execution count.
+   * Set whether the cell is dirty or not.
    */
-  private _onExecutionCountChanged(
-    count: IObservableValue,
-    args: ObservableValue.IChangedArgs
-  ): void {
-    const codeCell = this.sharedModel as models.YCodeCell;
-    globalModelDBMutex(() => {
-      codeCell.transact(() => {
-        codeCell.execution_count = args.newValue
-          ? (args.newValue as number)
-          : null;
-      }, false);
-    });
-    this.contentChanged.emit(void 0);
-    this.stateChanged.emit({
-      name: 'executionCount',
-      oldValue: args.oldValue,
-      newValue: args.newValue
-    });
-    if (args.newValue && this.isDirty) {
-      this._setDirty(false);
+  private _setDirty(v: boolean) {
+    if (!v) {
+      this._executedCode = this.sharedModel.getSource().trim();
+    }
+    if (v !== this._isDirty) {
+      this._isDirty = v;
+      this.stateChanged.emit({
+        name: 'isDirty',
+        oldValue: !v,
+        newValue: v
+      });
     }
   }
 
-  private _executedCode: string = '';
+  private _executedCode = '';
   private _isDirty = false;
   private _outputs: IOutputAreaModel;
 }
@@ -965,7 +810,8 @@ export namespace CodeCellModel {
   /**
    * The options used to initialize a `CodeCellModel`.
    */
-  export interface IOptions extends CellModel.IOptions {
+  export interface IOptions
+    extends Omit<CellModel.IOptions<ISharedCodeCell>, 'cell_type'> {
     /**
      * The factory for output area model creation.
      */
@@ -999,33 +845,3 @@ export namespace CodeCellModel {
    */
   export const defaultContentFactory = new ContentFactory();
 }
-
-namespace Private {
-  export function collapseChanged(
-    metadata: IObservableJSON,
-    args: IObservableMap.IChangedArgs<JSONValue>
-  ): void {
-    if (args.key === 'collapsed') {
-      const jupyter = (metadata.get('jupyter') || {}) as JSONObject;
-      const { outputs_hidden, ...newJupyter } = jupyter;
-
-      if (outputs_hidden !== args.newValue) {
-        if (args.newValue !== undefined) {
-          newJupyter['outputs_hidden'] = args.newValue;
-        }
-        if (Object.keys(newJupyter).length === 0) {
-          metadata.delete('jupyter');
-        } else {
-          metadata.set('jupyter', newJupyter);
-        }
-      }
-    } else if (args.key === 'jupyter') {
-      const jupyter = (args.newValue || {}) as JSONObject;
-      if (jupyter.hasOwnProperty('outputs_hidden')) {
-        metadata.set('collapsed', jupyter.outputs_hidden);
-      } else {
-        metadata.delete('collapsed');
-      }
-    }
-  }
-}
diff --git a/packages/cells/src/placeholder.ts b/packages/cells/src/placeholder.ts
new file mode 100644
index 000000000000..4bebbf5dd88f
--- /dev/null
+++ b/packages/cells/src/placeholder.ts
@@ -0,0 +1,153 @@
+/* -----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+import { ellipsesIcon } from '@jupyterlab/ui-components';
+import { Widget } from '@lumino/widgets';
+import { Message } from '@lumino/messaging';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+
+/**
+ * The CSS class added to placeholders.
+ */
+const PLACEHOLDER_CLASS = 'jp-Placeholder';
+
+/**
+ * The CSS classes added to input placeholder prompts.
+ */
+const INPUT_PROMPT_CLASS = 'jp-Placeholder-prompt jp-InputPrompt';
+
+/**
+ * The CSS classes added to output placeholder prompts.
+ */
+const OUTPUT_PROMPT_CLASS = 'jp-Placeholder-prompt jp-OutputPrompt';
+
+/**
+ * The CSS class added to placeholder content.
+ */
+const CONTENT_CLASS = 'jp-Placeholder-content';
+
+/**
+ * The CSS class added to input placeholders.
+ */
+const INPUT_PLACEHOLDER_CLASS = 'jp-InputPlaceholder';
+
+/**
+ * The CSS class added to output placeholders.
+ */
+const OUTPUT_PLACEHOLDER_CLASS = 'jp-OutputPlaceholder';
+
+/**
+ * Placeholder widget options
+ */
+export interface IPlaceholderOptions {
+  /**
+   * Prompt element CSS class
+   */
+  promptClass?: string;
+  /**
+   * Ellipsis button callback
+   */
+  callback: (e: MouseEvent) => void;
+  /**
+   * Text to include with the placeholder
+   */
+  text?: string;
+
+  /**
+   * Translator object
+   */
+  translator?: ITranslator;
+}
+
+/**
+ * An base class for placeholders
+ *
+ * ### Notes
+ * A placeholder is the element that is shown when input/output
+ * is hidden.
+ */
+export class Placeholder extends Widget {
+  /**
+   * Construct a new placeholder.
+   */
+  constructor(options: IPlaceholderOptions) {
+    const node = document.createElement('div');
+
+    super({ node });
+    const trans = (options.translator ?? nullTranslator).load('jupyterlab');
+    const innerNode = document.createElement('div');
+    innerNode.className = options.promptClass ?? '';
+    node.insertAdjacentHTML('afterbegin', innerNode.outerHTML);
+    this._cell = document.createElement('div');
+    this._cell.classList.add(CONTENT_CLASS);
+    this._cell.title = trans.__('Click to expand');
+    const container = this._cell.appendChild(document.createElement('div'));
+    container.classList.add('jp-Placeholder-contentContainer');
+    this._textContent = container.appendChild(document.createElement('span'));
+    this._textContent.className = 'jp-PlaceholderText';
+    this._textContent.innerText = options.text ?? '';
+    node.appendChild(this._cell);
+    ellipsesIcon.element({
+      container: container.appendChild(document.createElement('span')),
+      className: 'jp-MoreHorizIcon',
+      elementPosition: 'center',
+      height: 'auto',
+      width: '32px'
+    });
+
+    this.addClass(PLACEHOLDER_CLASS);
+    this._callback = options.callback;
+  }
+
+  /**
+   * The text displayed in the placeholder.
+   */
+  set text(t: string) {
+    this._textContent.innerText = t;
+  }
+  get text(): string {
+    return this._textContent.innerText;
+  }
+
+  protected onAfterAttach(msg: Message): void {
+    super.onAfterAttach(msg);
+    this.node.addEventListener('click', this._callback);
+  }
+
+  protected onBeforeDetach(msg: Message): void {
+    this.node.removeEventListener('click', this._callback);
+    super.onBeforeDetach(msg);
+  }
+
+  private _callback: (e: MouseEvent) => void;
+  private _cell: HTMLElement;
+  private _textContent: HTMLSpanElement;
+}
+
+/**
+ * The input placeholder class.
+ */
+export class InputPlaceholder extends Placeholder {
+  /**
+   * Construct a new input placeholder.
+   */
+  constructor(options: IPlaceholderOptions) {
+    super({ ...options, promptClass: INPUT_PROMPT_CLASS });
+    this.addClass(INPUT_PLACEHOLDER_CLASS);
+  }
+}
+
+/**
+ * The output placeholder class.
+ */
+export class OutputPlaceholder extends Placeholder {
+  /**
+   * Construct a new output placeholder.
+   */
+  constructor(options: IPlaceholderOptions) {
+    super({ ...options, promptClass: OUTPUT_PROMPT_CLASS });
+    this.addClass(OUTPUT_PLACEHOLDER_CLASS);
+  }
+}
diff --git a/packages/cells/src/placeholder.tsx b/packages/cells/src/placeholder.tsx
deleted file mode 100644
index 2f578389b29f..000000000000
--- a/packages/cells/src/placeholder.tsx
+++ /dev/null
@@ -1,135 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import * as React from 'react';
-
-import { ReactWidget } from '@jupyterlab/apputils';
-import { ellipsesIcon } from '@jupyterlab/ui-components';
-
-/**
- * The CSS class added to placeholders.
- */
-const PLACEHOLDER_CLASS = 'jp-Placeholder';
-
-/**
- * The CSS classes added to input placeholder prompts.
- */
-const INPUT_PROMPT_CLASS = 'jp-Placeholder-prompt jp-InputPrompt';
-
-/**
- * The CSS classes added to output placeholder prompts.
- */
-const OUTPUT_PROMPT_CLASS = 'jp-Placeholder-prompt jp-OutputPrompt';
-
-/**
- * The CSS class added to placeholder content.
- */
-const CONTENT_CLASS = 'jp-Placeholder-content';
-
-/**
- * The CSS class added to input placeholders.
- */
-const INPUT_PLACEHOLDER_CLASS = 'jp-InputPlaceholder';
-
-/**
- * The CSS class added to output placeholders.
- */
-const OUTPUT_PLACEHOLDER_CLASS = 'jp-OutputPlaceholder';
-
-/**
- * An abstract base class for placeholders
- *
- * ### Notes
- * A placeholder is the element that is shown when input/output
- * is hidden.
- */
-export abstract class Placeholder extends ReactWidget {
-  /**
-   * Construct a new placeholder.
-   */
-  constructor(callback: (e: React.MouseEvent<HTMLDivElement>) => void) {
-    super();
-    this.addClass(PLACEHOLDER_CLASS);
-    this._callback = callback;
-  }
-
-  /**
-   * Handle the click event.
-   */
-  protected handleClick(e: React.MouseEvent<HTMLDivElement>): void {
-    const callback = this._callback;
-    callback(e);
-  }
-
-  private _callback: (e: React.MouseEvent<HTMLDivElement>) => void;
-}
-
-/**
- * The input placeholder class.
- */
-export class InputPlaceholder extends Placeholder {
-  /**
-   * Construct a new input placeholder.
-   */
-  constructor(callback: (e: React.MouseEvent<HTMLDivElement>) => void) {
-    super(callback);
-    this.addClass(INPUT_PLACEHOLDER_CLASS);
-  }
-
-  /**
-   * Render the input placeholder using the virtual DOM.
-   */
-  protected render(): React.ReactElement<any>[] {
-    return [
-      <div className={INPUT_PROMPT_CLASS} key="input" />,
-      <div
-        className={CONTENT_CLASS}
-        onClick={e => this.handleClick(e)}
-        key="content"
-      >
-        <ellipsesIcon.react
-          className="jp-MoreHorizIcon"
-          elementPosition="center"
-          height="auto"
-          width="32px"
-        />
-      </div>
-    ];
-  }
-}
-
-/**
- * The output placeholder class.
- */
-export class OutputPlaceholder extends Placeholder {
-  /**
-   * Construct a new output placeholder.
-   */
-  constructor(callback: (e: React.MouseEvent<HTMLDivElement>) => void) {
-    super(callback);
-    this.addClass(OUTPUT_PLACEHOLDER_CLASS);
-  }
-
-  /**
-   * Render the output placeholder using the virtual DOM.
-   */
-  protected render(): React.ReactElement<any>[] {
-    return [
-      <div className={OUTPUT_PROMPT_CLASS} key="output" />,
-      <div
-        className={CONTENT_CLASS}
-        onClick={e => this.handleClick(e)}
-        key="content"
-      >
-        <ellipsesIcon.react
-          className="jp-MoreHorizIcon"
-          elementPosition="center"
-          height="auto"
-          width="32px"
-        />
-      </div>
-    ];
-  }
-}
diff --git a/packages/cells/src/resizeHandle.ts b/packages/cells/src/resizeHandle.ts
index fab2642603bd..246331c1a495 100644
--- a/packages/cells/src/resizeHandle.ts
+++ b/packages/cells/src/resizeHandle.ts
@@ -1,5 +1,12 @@
-import { Widget } from '@lumino/widgets';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { Message } from '@lumino/messaging';
+import { Throttler } from '@lumino/polling';
+import { Widget } from '@lumino/widgets';
+import { Signal } from '@lumino/signaling';
 
 const RESIZE_HANDLE_CLASS = 'jp-CellResizeHandle';
 
@@ -9,25 +16,18 @@ const CELL_RESIZED_CLASS = 'jp-mod-resizedCell';
  * A handle that allows to change input/output proportions in side-by-side mode.
  */
 export class ResizeHandle extends Widget {
-  private _isActive: boolean = false;
-  private _isDragging: boolean = false;
-  private _protectedWidth = 10;
-
   constructor(protected targetNode: HTMLElement) {
     super();
     this.addClass(RESIZE_HANDLE_CLASS);
+    this._resizer = new Throttler(event => this._resize(event), 50);
   }
 
-  protected onAfterAttach(msg: Message) {
-    super.onAfterAttach(msg);
-    this.node.addEventListener('dblclick', this);
-    this.node.addEventListener('mousedown', this);
-  }
-
-  protected onAfterDetach(msg: Message) {
-    super.onAfterAttach(msg);
-    this.node.removeEventListener('dblclick', this);
-    this.node.removeEventListener('mousedown', this);
+  /**
+   * Dispose the resizer handle.
+   */
+  dispose(): void {
+    this._resizer.dispose();
+    super.dispose();
   }
 
   /**
@@ -42,12 +42,10 @@ export class ResizeHandle extends Widget {
         this.targetNode.parentNode?.childNodes.forEach(node => {
           (node as HTMLElement).classList.remove(CELL_RESIZED_CLASS);
         });
-
         document.documentElement.style.setProperty(
           '--jp-side-by-side-output-size',
-          '1fr'
+          `1fr`
         );
-
         this._isActive = false;
         break;
       case 'mousedown':
@@ -63,22 +61,9 @@ export class ResizeHandle extends Widget {
         window.addEventListener('mouseup', this);
         break;
       case 'mousemove': {
-        if (!this._isActive || !this._isDragging) {
-          return;
+        if (this._isActive && this._isDragging) {
+          void this._resizer.invoke(event as MouseEvent);
         }
-        const targetRect = this.targetNode.getBoundingClientRect();
-
-        const width = targetRect.width - this._protectedWidth * 2;
-        const position =
-          (event as MouseEvent).clientX - targetRect.x - this._protectedWidth;
-
-        const outputRatio = width / position - 1;
-
-        document.documentElement.style.setProperty(
-          '--jp-side-by-side-output-size',
-          `${outputRatio}fr`
-        );
-
         break;
       }
       case 'mouseup':
@@ -90,4 +75,46 @@ export class ResizeHandle extends Widget {
         break;
     }
   }
+
+  /**
+   * Handle `after-attach` messages.
+   */
+  protected onAfterAttach(msg: Message) {
+    this.node.addEventListener('dblclick', this);
+    this.node.addEventListener('mousedown', this);
+    super.onAfterAttach(msg);
+  }
+
+  /**
+   * Handle `before-detach` messages.
+   */
+  protected onBeforeDetach(msg: Message) {
+    this.node.removeEventListener('dblclick', this);
+    this.node.removeEventListener('mousedown', this);
+    super.onBeforeDetach(msg);
+  }
+
+  private _resize(event: MouseEvent): void {
+    // Gate the output size ratio between {0.05, 50} as sensible defaults.
+    const { width, x } = this.targetNode.getBoundingClientRect();
+    const position = event.clientX - x;
+    const ratio = width / position - 1;
+    if (0 < ratio) {
+      const normalized = Math.max(Math.min(Math.abs(ratio), 50), 0.05);
+      document.documentElement.style.setProperty(
+        '--jp-side-by-side-output-size',
+        `${normalized}fr`
+      );
+      this.sizeChanged.emit(normalized);
+    }
+  }
+
+  private _isActive = false;
+  private _isDragging = false;
+  private _resizer: Throttler<void, void, [MouseEvent]>;
+
+  /**
+   * A public signal used to indicate the size of the cell and output has changed.
+   */
+  readonly sizeChanged = new Signal<this, number>(this);
 }
diff --git a/packages/cells/src/searchprovider.ts b/packages/cells/src/searchprovider.ts
new file mode 100644
index 000000000000..b5fe8bc87464
--- /dev/null
+++ b/packages/cells/src/searchprovider.ts
@@ -0,0 +1,440 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import {
+  CodeMirrorEditor,
+  EditorSearchProvider,
+  IHighlightAdjacentMatchOptions
+} from '@jupyterlab/codemirror';
+import { signalToPromise } from '@jupyterlab/coreutils';
+import {
+  GenericSearchProvider,
+  IBaseSearchProvider,
+  IFilters,
+  ISearchMatch
+} from '@jupyterlab/documentsearch';
+import { OutputArea } from '@jupyterlab/outputarea';
+import { ICellModel } from './model';
+import { Cell, CodeCell, MarkdownCell } from './widget';
+
+/**
+ * Class applied on highlighted search matches
+ */
+export const SELECTED_HIGHLIGHT_CLASS = 'jp-mod-selected';
+
+/**
+ * Search provider for cells.
+ */
+export class CellSearchProvider
+  extends EditorSearchProvider<ICellModel>
+  implements IBaseSearchProvider
+{
+  constructor(protected cell: Cell<ICellModel>) {
+    super();
+    if (!this.cell.inViewport && !this.cell.editor) {
+      void signalToPromise(cell.inViewportChanged).then(([, inViewport]) => {
+        if (inViewport) {
+          this.cmHandler.setEditor(this.editor as CodeMirrorEditor);
+        }
+      });
+    }
+  }
+
+  /**
+   * Text editor
+   */
+  protected get editor(): CodeEditor.IEditor | null {
+    return this.cell.editor;
+  }
+
+  /**
+   * Editor content model
+   */
+  protected get model() {
+    return this.cell.model;
+  }
+}
+
+/**
+ * Code cell search provider
+ */
+class CodeCellSearchProvider extends CellSearchProvider {
+  /**
+   * Constructor
+   *
+   * @param cell Cell widget
+   */
+  constructor(cell: Cell<ICellModel>) {
+    super(cell);
+
+    this.currentProviderIndex = -1;
+    this.outputsProvider = [];
+
+    const outputs = (this.cell as CodeCell).outputArea;
+    this._onOutputsChanged(outputs, outputs.widgets.length).catch(reason => {
+      console.error(`Failed to initialize search on cell outputs.`, reason);
+    });
+    outputs.outputLengthChanged.connect(this._onOutputsChanged, this);
+    outputs.disposed.connect(() => {
+      outputs.outputLengthChanged.disconnect(this._onOutputsChanged);
+    }, this);
+  }
+
+  /**
+   * Number of matches in the cell.
+   */
+  get matchesCount(): number {
+    if (!this.isActive) {
+      return 0;
+    }
+
+    return (
+      super.matchesCount +
+      this.outputsProvider.reduce(
+        (sum, provider) => sum + (provider.matchesCount ?? 0),
+        0
+      )
+    );
+  }
+
+  /**
+   * Clear currently highlighted match.
+   */
+  async clearHighlight(): Promise<void> {
+    await super.clearHighlight();
+    await Promise.all(
+      this.outputsProvider.map(provider => provider.clearHighlight())
+    );
+  }
+
+  /**
+   * Dispose the search provider
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    super.dispose();
+    this.outputsProvider.map(provider => {
+      provider.dispose();
+    });
+    this.outputsProvider.length = 0;
+  }
+
+  /**
+   * Highlight the next match.
+   *
+   * @returns The next match if there is one.
+   */
+  async highlightNext(
+    loop?: boolean,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    if (this.matchesCount === 0 || !this.isActive) {
+      this.currentIndex = null;
+    } else {
+      if (this.currentProviderIndex === -1) {
+        const match = await super.highlightNext(true, options);
+        if (match) {
+          this.currentIndex = this.cmHandler.currentIndex;
+          return match;
+        } else {
+          this.currentProviderIndex = 0;
+        }
+      }
+
+      while (this.currentProviderIndex < this.outputsProvider.length) {
+        const provider = this.outputsProvider[this.currentProviderIndex];
+        const match = await provider.highlightNext(false);
+        if (match) {
+          this.currentIndex =
+            super.matchesCount +
+            this.outputsProvider
+              .slice(0, this.currentProviderIndex)
+              .reduce(
+                (sum, provider) => (sum += provider.matchesCount ?? 0),
+                0
+              ) +
+            provider.currentMatchIndex!;
+          return match;
+        } else {
+          this.currentProviderIndex += 1;
+        }
+      }
+
+      this.currentProviderIndex = -1;
+      this.currentIndex = null;
+      return undefined;
+    }
+  }
+
+  /**
+   * Highlight the previous match.
+   *
+   * @returns The previous match if there is one.
+   */
+  async highlightPrevious(): Promise<ISearchMatch | undefined> {
+    if (this.matchesCount === 0 || !this.isActive) {
+      this.currentIndex = null;
+    } else {
+      if (this.currentIndex === null) {
+        this.currentProviderIndex = this.outputsProvider.length - 1;
+      }
+
+      while (this.currentProviderIndex >= 0) {
+        const provider = this.outputsProvider[this.currentProviderIndex];
+
+        const match = await provider.highlightPrevious(false);
+        if (match) {
+          this.currentIndex =
+            super.matchesCount +
+            this.outputsProvider
+              .slice(0, this.currentProviderIndex)
+              .reduce(
+                (sum, provider) => (sum += provider.matchesCount ?? 0),
+                0
+              ) +
+            provider.currentMatchIndex!;
+          return match;
+        } else {
+          this.currentProviderIndex -= 1;
+        }
+      }
+
+      const match = await super.highlightPrevious();
+      if (match) {
+        this.currentIndex = this.cmHandler.currentIndex;
+        return match;
+      } else {
+        this.currentIndex = null;
+        return undefined;
+      }
+    }
+  }
+
+  /**
+   * Initialize the search using the provided options. Should update the UI to highlight
+   * all matches and "select" the first match.
+   *
+   * @param query A RegExp to be use to perform the search
+   * @param filters Filter parameters to pass to provider
+   */
+  async startQuery(query: RegExp | null, filters?: IFilters): Promise<void> {
+    await super.startQuery(query, filters);
+
+    // Search outputs
+    if (filters?.output !== false && this.isActive) {
+      await Promise.all(
+        this.outputsProvider.map(provider => provider.startQuery(query))
+      );
+    }
+  }
+
+  async endQuery(): Promise<void> {
+    await super.endQuery();
+    if (this.filters?.output !== false && this.isActive) {
+      await Promise.all(
+        this.outputsProvider.map(provider => provider.endQuery())
+      );
+    }
+  }
+
+  private async _onOutputsChanged(
+    outputArea: OutputArea,
+    changes: number
+  ): Promise<void> {
+    this.outputsProvider.forEach(provider => {
+      provider.dispose();
+    });
+    this.outputsProvider.length = 0;
+
+    this.currentProviderIndex = -1;
+    this.outputsProvider = (this.cell as CodeCell).outputArea.widgets.map(
+      output => new GenericSearchProvider(output)
+    );
+
+    if (this.isActive && this.query && this.filters?.output !== false) {
+      await Promise.all([
+        this.outputsProvider.map(provider => {
+          void provider.startQuery(this.query);
+        })
+      ]);
+    }
+
+    this._stateChanged.emit();
+  }
+
+  protected outputsProvider: GenericSearchProvider[];
+  protected currentProviderIndex: number;
+}
+
+/**
+ * Markdown cell search provider
+ */
+class MarkdownCellSearchProvider extends CellSearchProvider {
+  /**
+   * Constructor
+   *
+   * @param cell Cell widget
+   */
+  constructor(cell: Cell<ICellModel>) {
+    super(cell);
+    this.renderedProvider = new GenericSearchProvider(
+      (cell as MarkdownCell).renderer
+    );
+  }
+
+  /**
+   * Clear currently highlighted match
+   */
+  async clearHighlight(): Promise<void> {
+    await super.clearHighlight();
+    await this.renderedProvider.clearHighlight();
+  }
+
+  /**
+   * Dispose the search provider
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    super.dispose();
+    this.renderedProvider.dispose();
+  }
+
+  /**
+   * Stop the search and clean any UI elements.
+   */
+  async endQuery(): Promise<void> {
+    await super.endQuery();
+    await this.renderedProvider.endQuery();
+  }
+
+  /**
+   * Highlight the next match.
+   *
+   * @returns The next match if there is one.
+   */
+  async highlightNext(): Promise<ISearchMatch | undefined> {
+    let match: ISearchMatch | undefined = undefined;
+    if (!this.isActive) {
+      return match;
+    }
+
+    const cell = this.cell as MarkdownCell;
+    if (cell.rendered && this.matchesCount > 0) {
+      // Unrender the cell
+      this._unrenderedByHighligh = true;
+      const waitForRendered = signalToPromise(cell.renderedChanged);
+      cell.rendered = false;
+      await waitForRendered;
+    }
+
+    match = await super.highlightNext();
+
+    return match;
+  }
+
+  /**
+   * Highlight the previous match.
+   *
+   * @returns The previous match if there is one.
+   */
+  async highlightPrevious(): Promise<ISearchMatch | undefined> {
+    let match: ISearchMatch | undefined = undefined;
+    const cell = this.cell as MarkdownCell;
+    if (cell.rendered && this.matchesCount > 0) {
+      // Unrender the cell if there are matches within the cell
+      this._unrenderedByHighligh = true;
+      const waitForRendered = signalToPromise(cell.renderedChanged);
+      cell.rendered = false;
+      await waitForRendered;
+    }
+
+    match = await super.highlightPrevious();
+
+    return match;
+  }
+
+  /**
+   * Initialize the search using the provided options. Should update the UI
+   * to highlight all matches and "select" the first match.
+   *
+   * @param query A RegExp to be use to perform the search
+   * @param filters Filter parameters to pass to provider
+   */
+  async startQuery(query: RegExp | null, filters?: IFilters): Promise<void> {
+    await super.startQuery(query, filters);
+    const cell = this.cell as MarkdownCell;
+    if (cell.rendered) {
+      this.onRenderedChanged(cell, cell.rendered);
+    }
+    cell.renderedChanged.connect(this.onRenderedChanged, this);
+  }
+
+  /**
+   * Replace all matches in the cell source with the provided text
+   *
+   * @param newText The replacement text.
+   * @returns Whether a replace occurred.
+   */
+  async replaceAllMatches(newText: string): Promise<boolean> {
+    const result = await super.replaceAllMatches(newText);
+    // if the cell is rendered force update
+    if ((this.cell as MarkdownCell).rendered) {
+      this.cell.update();
+    }
+
+    return result;
+  }
+
+  /**
+   * Callback on rendered state change
+   *
+   * @param cell Cell that emitted the change
+   * @param rendered New rendered value
+   */
+  protected onRenderedChanged(cell: MarkdownCell, rendered: boolean): void {
+    if (!this._unrenderedByHighligh) {
+      this.currentIndex = null;
+    }
+    this._unrenderedByHighligh = false;
+    if (this.isActive) {
+      if (rendered) {
+        void this.renderedProvider.startQuery(this.query);
+      } else {
+        // Force cursor position to ensure reverse search is working as expected
+        cell.editor?.setCursorPosition({ column: 0, line: 0 });
+        void this.renderedProvider.endQuery();
+      }
+    }
+  }
+
+  protected renderedProvider: GenericSearchProvider;
+  private _unrenderedByHighligh = false;
+}
+
+/**
+ * Factory to create a cell search provider
+ *
+ * @param cell Cell widget
+ * @returns Cell search provider
+ */
+export function createCellSearchProvider(
+  cell: Cell<ICellModel>
+): CellSearchProvider {
+  if (cell.isPlaceholder()) {
+    return new CellSearchProvider(cell);
+  }
+
+  switch (cell.model.type) {
+    case 'code':
+      return new CodeCellSearchProvider(cell);
+    case 'markdown':
+      return new MarkdownCellSearchProvider(cell);
+    default:
+      return new CellSearchProvider(cell);
+  }
+}
diff --git a/packages/cells/src/testutils.ts b/packages/cells/src/testutils.ts
new file mode 100644
index 000000000000..83c784ed6868
--- /dev/null
+++ b/packages/cells/src/testutils.ts
@@ -0,0 +1,57 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeEditorWrapper, IEditorServices } from '@jupyterlab/codeeditor';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorLanguageRegistry
+} from '@jupyterlab/codemirror';
+import { CodeCellModel } from './model';
+import { Cell } from './widget';
+
+/**
+ * The default notebook content.
+ */
+
+export namespace NBTestUtils {
+  const editorServices: IEditorServices = (function () {
+    const languages = new EditorLanguageRegistry();
+    const factoryService = new CodeMirrorEditorFactory({ languages });
+    const mimeTypeService = new CodeMirrorMimeTypeService(languages);
+    return {
+      factoryService,
+      mimeTypeService
+    };
+  })();
+
+  export const editorFactory =
+    editorServices.factoryService.newInlineEditor.bind(
+      editorServices.factoryService
+    );
+
+  export const mimeTypeService = editorServices.mimeTypeService;
+  /**
+   * Create a base cell content factory.
+   */
+  export function createBaseCellFactory(): Cell.IContentFactory {
+    return new Cell.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a new code cell content factory.
+   */
+  export function createCodeCellFactory(): Cell.IContentFactory {
+    return new Cell.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a cell editor widget.
+   */
+  export function createCellEditor(model?: CodeCellModel): CodeEditorWrapper {
+    return new CodeEditorWrapper({
+      model: model ?? new CodeCellModel(),
+      factory: editorFactory
+    });
+  }
+}
diff --git a/packages/cells/src/widget.ts b/packages/cells/src/widget.ts
index 75b08c84993b..4689d2bda786 100644
--- a/packages/cells/src/widget.ts
+++ b/packages/cells/src/widget.ts
@@ -3,7 +3,9 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { marked } from 'marked';
+import { Extension } from '@codemirror/state';
+
+import { EditorView } from '@codemirror/view';
 
 import { AttachmentsResolver } from '@jupyterlab/attachments';
 
@@ -17,8 +19,6 @@ import { DirListing } from '@jupyterlab/filebrowser';
 
 import * as nbformat from '@jupyterlab/nbformat';
 
-import { IObservableJSON, IObservableMap } from '@jupyterlab/observables';
-
 import {
   IOutputPrompt,
   IStdin,
@@ -37,21 +37,21 @@ import {
 
 import { Kernel, KernelMessage } from '@jupyterlab/services';
 
+import { IMapChange } from '@jupyter/ydoc';
+
+import { TableOfContentsUtils } from '@jupyterlab/toc';
+
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+
 import { addIcon } from '@jupyterlab/ui-components';
 
-import {
-  JSONObject,
-  JSONValue,
-  PartialJSONValue,
-  PromiseDelegate,
-  UUID
-} from '@lumino/coreutils';
+import { JSONObject, PromiseDelegate, UUID } from '@lumino/coreutils';
 
-import { filter, some, toArray } from '@lumino/algorithm';
+import { some } from '@lumino/algorithm';
 
-import { IDragEvent } from '@lumino/dragdrop';
+import { Drag } from '@lumino/dragdrop';
 
-import { Message } from '@lumino/messaging';
+import { Message, MessageLoop } from '@lumino/messaging';
 
 import { Debouncer } from '@lumino/polling';
 
@@ -71,6 +71,7 @@ import {
 import { IInputPrompt, InputArea, InputPrompt } from './inputarea';
 
 import {
+  CellModel,
   IAttachmentsCellModel,
   ICellModel,
   ICodeCellModel,
@@ -127,11 +128,6 @@ const CELL_INPUT_COLLAPSER_CLASS = 'jp-Cell-inputCollapser';
  */
 const CELL_OUTPUT_COLLAPSER_CLASS = 'jp-Cell-outputCollapser';
 
-/**
- * The class name added to the cell when readonly.
- */
-const READONLY_CLASS = 'jp-mod-readOnly';
-
 /**
  * The class name added to the cell when dirty.
  */
@@ -152,7 +148,7 @@ const MARKDOWN_CELL_CLASS = 'jp-MarkdownCell';
  */
 const MARKDOWN_OUTPUT_CLASS = 'jp-MarkdownOutput';
 
-export const MARKDOWN_HEADING_COLLAPSED = 'jp-MarkdownHeadingCollapsed';
+const MARKDOWN_HEADING_COLLAPSED = 'jp-MarkdownHeadingCollapsed';
 
 const HEADING_COLLAPSER_CLASS = 'jp-collapseHeadingButton';
 
@@ -200,46 +196,18 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     super();
     this.addClass(CELL_CLASS);
     const model = (this._model = options.model);
-    const contentFactory = (this.contentFactory =
-      options.contentFactory || Cell.defaultContentFactory);
-    this.layout = new PanelLayout();
-
-    // Header
-    const header = contentFactory.createCellHeader();
-    header.addClass(CELL_HEADER_CLASS);
-    (this.layout as PanelLayout).addWidget(header);
-
-    // Input
-    const inputWrapper = (this._inputWrapper = new Panel());
-    inputWrapper.addClass(CELL_INPUT_WRAPPER_CLASS);
-    const inputCollapser = new InputCollapser();
-    inputCollapser.addClass(CELL_INPUT_COLLAPSER_CLASS);
-    const input = (this._input = new InputArea({
-      model,
-      contentFactory,
-      updateOnShow: options.updateEditorOnShow,
-      placeholder: options.placeholder
-    }));
-    input.addClass(CELL_INPUT_AREA_CLASS);
-    inputWrapper.addWidget(inputCollapser);
-    inputWrapper.addWidget(input);
-    (this.layout as PanelLayout).addWidget(inputWrapper);
-
-    this._inputPlaceholder = new InputPlaceholder(() => {
-      this.inputHidden = !this.inputHidden;
-    });
 
-    // Footer
-    const footer = this.contentFactory.createCellFooter();
-    footer.addClass(CELL_FOOTER_CLASS);
-    (this.layout as PanelLayout).addWidget(footer);
+    this.contentFactory = options.contentFactory;
+    this.layout = options.layout ?? new PanelLayout();
+    // Set up translator for aria labels
+    this.translator = options.translator ?? nullTranslator;
 
-    // Editor settings
-    if (options.editorConfig) {
-      this.editor.setOptions({ ...options.editorConfig });
-    }
+    this._editorConfig = options.editorConfig ?? {};
+    this._placeholder = true;
+    this._inViewport = false;
+    this.placeholder = options.placeholder ?? true;
 
-    model.metadata.changed.connect(this.onMetadataChanged, this);
+    model.metadataChanged.connect(this.onMetadataChanged, this);
   }
 
   /**
@@ -267,12 +235,51 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     return this._displayChanged;
   }
 
+  /**
+   * Whether the cell is in viewport or not.
+   */
+  get inViewport(): boolean {
+    return this._inViewport;
+  }
+  set inViewport(v: boolean) {
+    if (this._inViewport !== v) {
+      this._inViewport = v;
+      this._inViewportChanged.emit(this._inViewport);
+    }
+  }
+
+  /**
+   * Will emit true just after the node is attached to the DOM
+   * Will emit false just before the node is detached of the DOM
+   */
+  get inViewportChanged(): ISignal<Cell, boolean> {
+    return this._inViewportChanged;
+  }
+
+  /**
+   * Whether the cell is a placeholder not yet fully rendered or not.
+   */
+  protected get placeholder(): boolean {
+    return this._placeholder;
+  }
+  protected set placeholder(v: boolean) {
+    if (this._placeholder !== v && v === false) {
+      this.initializeDOM();
+      this._placeholder = v;
+      this._ready.resolve();
+    }
+  }
+
   /**
    * Get the prompt node used by the cell.
    */
-  get promptNode(): HTMLElement {
+  get promptNode(): HTMLElement | null {
+    if (this.placeholder) {
+      return null;
+    }
+
     if (!this._inputHidden) {
-      return this._input.promptNode;
+      return this._input!.promptNode;
     } else {
       return (this._inputPlaceholder!.node as HTMLElement)
         .firstElementChild as HTMLElement;
@@ -282,15 +289,29 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
   /**
    * Get the CodeEditorWrapper used by the cell.
    */
-  get editorWidget(): CodeEditorWrapper {
-    return this._input.editorWidget;
+  get editorWidget(): CodeEditorWrapper | null {
+    return this._input?.editorWidget ?? null;
   }
 
   /**
    * Get the CodeEditor used by the cell.
    */
-  get editor(): CodeEditor.IEditor {
-    return this._input.editor;
+  get editor(): CodeEditor.IEditor | null {
+    return this._input?.editor ?? null;
+  }
+
+  /**
+   * Editor configuration
+   */
+  get editorConfig(): Record<string, any> {
+    return this._editorConfig;
+  }
+
+  /**
+   * Cell headings
+   */
+  get headings(): Cell.IHeading[] {
+    return new Array<Cell.IHeading>();
   }
 
   /**
@@ -303,7 +324,7 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
   /**
    * Get the input area for the cell.
    */
-  get inputArea(): InputArea {
+  get inputArea(): InputArea | null {
     return this._input;
   }
 
@@ -324,12 +345,23 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     this.update();
   }
 
+  /**
+   * Whether the cell is a placeholder that defer rendering
+   *
+   * #### Notes
+   * You can wait for the promise `Cell.ready` to wait for the
+   * cell to be rendered.
+   */
+  isPlaceholder(): boolean {
+    return this.placeholder;
+  }
+
   /**
    * Save view editable state to model
    */
-  saveEditableState() {
-    const { metadata } = this.model;
-    const current = metadata.get('editable');
+  saveEditableState(): void {
+    const { sharedModel } = this.model;
+    const current = sharedModel.getMetadata('editable') as unknown as boolean;
 
     if (
       (this.readOnly && current === false) ||
@@ -337,33 +369,35 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     ) {
       return;
     }
-
     if (this.readOnly) {
-      this.model.metadata.set('editable', false);
+      sharedModel.setMetadata('editable', false);
     } else {
-      this.model.metadata.delete('editable');
+      sharedModel.deleteMetadata('editable');
     }
   }
 
   /**
    * Load view editable state from model.
    */
-  loadEditableState() {
-    this.readOnly = this.model.metadata.get('editable') === false;
+  loadEditableState(): void {
+    this.readOnly =
+      (this.model.sharedModel.getMetadata('editable') as unknown as boolean) ===
+      false;
   }
 
   /**
    * A promise that resolves when the widget renders for the first time.
    */
   get ready(): Promise<void> {
-    return Promise.resolve(undefined);
+    return this._ready.promise;
   }
 
   /**
    * Set the prompt for the widget.
    */
   setPrompt(value: string): void {
-    this._input.setPrompt(value);
+    this.prompt = value;
+    this._input?.setPrompt(value);
   }
 
   /**
@@ -376,13 +410,20 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     if (this._inputHidden === value) {
       return;
     }
-    const layout = this._inputWrapper.layout as PanelLayout;
-    if (value) {
-      this._input.parent = null;
-      layout.addWidget(this._inputPlaceholder);
-    } else {
-      this._inputPlaceholder.parent = null;
-      layout.addWidget(this._input);
+    if (!this.placeholder) {
+      const layout = this._inputWrapper!.layout as PanelLayout;
+      if (value) {
+        this._input!.parent = null;
+        if (this._inputPlaceholder) {
+          this._inputPlaceholder.text = this.model.sharedModel
+            .getSource()
+            .split('\n')?.[0];
+        }
+        layout.addWidget(this._inputPlaceholder!);
+      } else {
+        this._inputPlaceholder!.parent = null;
+        layout.addWidget(this._input!);
+      }
     }
     this._inputHidden = value;
     if (this.syncCollapse) {
@@ -394,8 +435,8 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
   /**
    * Save view collapse state to model
    */
-  saveCollapseState() {
-    const jupyter = { ...(this.model.metadata.get('jupyter') as any) };
+  saveCollapseState(): void {
+    const jupyter = { ...(this.model.getMetadata('jupyter') as any) };
 
     if (
       (this.inputHidden && jupyter.source_hidden === true) ||
@@ -410,17 +451,17 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
       delete jupyter.source_hidden;
     }
     if (Object.keys(jupyter).length === 0) {
-      this.model.metadata.delete('jupyter');
+      this.model.deleteMetadata('jupyter');
     } else {
-      this.model.metadata.set('jupyter', jupyter);
+      this.model.setMetadata('jupyter', jupyter);
     }
   }
 
   /**
    * Revert view collapse state from model.
    */
-  loadCollapseState() {
-    const jupyter = (this.model.metadata.get('jupyter') as any) || {};
+  loadCollapseState(): void {
+    const jupyter = (this.model.getMetadata('jupyter') as any) ?? {};
     this.inputHidden = !!jupyter.source_hidden;
   }
 
@@ -476,14 +517,15 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     return new constructor({
       model: this.model,
       contentFactory: this.contentFactory,
-      placeholder: false
+      placeholder: false,
+      translator: this.translator
     });
   }
 
   /**
    * Dispose of the resources held by the widget.
    */
-  dispose() {
+  dispose(): void {
     // Do nothing if already disposed.
     if (this.isDisposed) {
       return;
@@ -496,6 +538,94 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     super.dispose();
   }
 
+  /**
+   * Update the editor configuration with the partial provided dictionary.
+   *
+   * @param v Partial editor configuration
+   */
+  updateEditorConfig(v: Record<string, any>): void {
+    this._editorConfig = { ...this._editorConfig, ...v };
+    if (this.editor) {
+      this.editor.setOptions(this._editorConfig);
+    }
+  }
+
+  /**
+   * Create children widgets.
+   */
+  protected initializeDOM(): void {
+    if (!this.placeholder) {
+      return;
+    }
+
+    const contentFactory = this.contentFactory;
+    const model = this._model;
+
+    // Header
+    const header = contentFactory.createCellHeader();
+    header.addClass(CELL_HEADER_CLASS);
+    (this.layout as PanelLayout).addWidget(header);
+
+    // Input
+    const inputWrapper = (this._inputWrapper = new Panel());
+    inputWrapper.addClass(CELL_INPUT_WRAPPER_CLASS);
+    const inputCollapser = new InputCollapser();
+    inputCollapser.addClass(CELL_INPUT_COLLAPSER_CLASS);
+    const input = (this._input = new InputArea({
+      model,
+      contentFactory,
+      editorOptions: this.getEditorOptions()
+    }));
+    input.addClass(CELL_INPUT_AREA_CLASS);
+    inputWrapper.addWidget(inputCollapser);
+    inputWrapper.addWidget(input);
+    (this.layout as PanelLayout).addWidget(inputWrapper);
+
+    this._inputPlaceholder = new InputPlaceholder({
+      callback: () => {
+        this.inputHidden = !this.inputHidden;
+      },
+      text: input.model.sharedModel.getSource().split('\n')[0],
+      translator: this.translator
+    });
+
+    input.model.contentChanged.connect((sender, args) => {
+      if (this._inputPlaceholder && this.inputHidden) {
+        this._inputPlaceholder.text = sender.sharedModel
+          .getSource()
+          .split('\n')?.[0];
+      }
+    });
+
+    if (this.inputHidden) {
+      input.parent = null;
+      (inputWrapper.layout as PanelLayout).addWidget(this._inputPlaceholder!);
+    }
+
+    // Footer
+    const footer = this.contentFactory.createCellFooter();
+    footer.addClass(CELL_FOOTER_CLASS);
+    (this.layout as PanelLayout).addWidget(footer);
+  }
+
+  /**
+   * Get the editor options at initialization.
+   *
+   * @returns Editor options
+   */
+  protected getEditorOptions(): InputArea.IOptions['editorOptions'] {
+    return { config: this.editorConfig };
+  }
+
+  /**
+   * Handle `before-attach` messages.
+   */
+  protected onBeforeAttach(msg: Message): void {
+    if (this.placeholder) {
+      this.placeholder = false;
+    }
+  }
+
   /**
    * Handle `after-attach` messages.
    */
@@ -507,15 +637,7 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
    * Handle `'activate-request'` messages.
    */
   protected onActivateRequest(msg: Message): void {
-    this.editor.focus();
-  }
-
-  /**
-   * Handle `fit-request` messages.
-   */
-  protected onFitRequest(msg: Message): void {
-    // need this for for when a theme changes font size
-    this.editor.refresh();
+    this.editor?.focus();
   }
 
   /**
@@ -533,19 +655,23 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
       return;
     }
     // Handle read only state.
-    if (this.editor.getOption('readOnly') !== this._readOnly) {
-      this.editor.setOption('readOnly', this._readOnly);
-      this.toggleClass(READONLY_CLASS, this._readOnly);
+    if (this.editor?.getOption('readOnly') !== this._readOnly) {
+      this.editor?.setOption('readOnly', this._readOnly);
+    }
+  }
+
+  protected onContentChanged() {
+    if (this.inputHidden && this._inputPlaceholder) {
+      this._inputPlaceholder.text = this.model.sharedModel
+        .getSource()
+        .split('\n')?.[0];
     }
   }
 
   /**
    * Handle changes in the metadata.
    */
-  protected onMetadataChanged(
-    model: IObservableJSON,
-    args: IObservableMap.IChangedArgs<PartialJSONValue | undefined>
-  ): void {
+  protected onMetadataChanged(model: CellModel, args: IMapChange): void {
     switch (args.key) {
       case 'jupyter':
         if (this.syncCollapse) {
@@ -562,18 +688,28 @@ export class Cell<T extends ICellModel = ICellModel> extends Widget {
     }
   }
 
+  protected prompt = '';
+  protected translator: ITranslator;
   protected _displayChanged = new Signal<this, void>(this);
-  private _readOnly = false;
-  private _model: T;
+
+  private _editorConfig: Record<string, any> = {};
+  private _input: InputArea | null;
   private _inputHidden = false;
-  private _input: InputArea;
-  private _inputWrapper: Widget;
-  private _inputPlaceholder: InputPlaceholder;
-  private _syncCollapse = false;
-  private _syncEditable = false;
+  private _inputWrapper: Widget | null;
+  private _inputPlaceholder: InputPlaceholder | null;
+  private _inViewport: boolean;
+  private _inViewportChanged: Signal<Cell, boolean> = new Signal<Cell, boolean>(
+    this
+  );
+  private _model: T;
+  private _placeholder: boolean;
+  private _readOnly = false;
+  private _ready = new PromiseDelegate<void>();
   private _resizeDebouncer = new Debouncer(() => {
     this._displayChanged.emit();
   }, 0);
+  private _syncCollapse = false;
+  private _syncEditable = false;
 }
 
 /**
@@ -592,27 +728,81 @@ export namespace Cell {
     /**
      * The factory object for customizable cell children.
      */
-    contentFactory?: IContentFactory;
+    contentFactory: IContentFactory;
 
     /**
      * The configuration options for the text editor widget.
      */
-    editorConfig?: Partial<CodeEditor.IConfig>;
+    editorConfig?: Record<string, any>;
 
     /**
-     * Whether to send an update request to the editor when it is shown.
+     * Editor extensions to be added.
      */
-    updateEditorOnShow?: boolean;
+    editorExtensions?: Extension[];
+
+    /**
+     * Cell widget layout.
+     */
+    layout?: PanelLayout;
 
     /**
      * The maximum number of output items to display in cell output.
      */
     maxNumberOutputs?: number;
 
+    /**
+     * Whether to split stdin line history by kernel session or keep globally accessible.
+     */
+    inputHistoryScope?: 'global' | 'session';
+
     /**
      * Whether this cell is a placeholder for future rendering.
      */
     placeholder?: boolean;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator;
+  }
+
+  /**
+   * Cell heading
+   */
+  export interface IHeading {
+    /**
+     * Heading text.
+     */
+    text: string;
+
+    /**
+     * HTML heading level.
+     */
+    level: number;
+
+    /**
+     * Index of the output containing the heading
+     */
+    outputIndex?: number;
+
+    /**
+     * Type of heading
+     */
+    type: HeadingType;
+  }
+
+  /**
+   * Type of headings
+   */
+  export enum HeadingType {
+    /**
+     * Heading from HTML output
+     */
+    HTML,
+    /**
+     * Heading from Markdown cell or Markdown output
+     */
+    Markdown
   }
 
   /**
@@ -647,9 +837,8 @@ export namespace Cell {
     /**
      * Create a content factory for a cell.
      */
-    constructor(options: ContentFactory.IOptions = {}) {
-      this._editorFactory =
-        options.editorFactory || InputArea.defaultEditorFactory;
+    constructor(options: ContentFactory.IOptions) {
+      this._editorFactory = options.editorFactory;
     }
 
     /**
@@ -667,7 +856,7 @@ export namespace Cell {
     }
 
     /**
-     * Create a new cell header for the parent widget.
+     * Create a new cell footer for the parent widget.
      */
     createCellFooter(): ICellFooter {
       return new CellFooter();
@@ -707,24 +896,92 @@ export namespace Cell {
     export interface IOptions {
       /**
        * The editor factory used by the content factory.
-       *
-       * If this is not passed, a default CodeMirror editor factory
-       * will be used.
        */
-      editorFactory?: CodeEditor.Factory;
+      editorFactory: CodeEditor.Factory;
     }
   }
-
-  /**
-   * The default content factory for cells.
-   */
-  export const defaultContentFactory = new ContentFactory();
 }
 
 /** ****************************************************************************
  * CodeCell
  ******************************************************************************/
 
+/**
+ * Code cell layout
+ *
+ * It will not detached the output area when the cell is detached.
+ */
+export class CodeCellLayout extends PanelLayout {
+  /**
+   * A message handler invoked on a `'before-attach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onBeforeAttach(msg: Message): void {
+    let beforeOutputArea = true;
+    const outputAreaWrapper = this.parent!.node.firstElementChild;
+    for (const widget of this) {
+      if (outputAreaWrapper) {
+        if (widget.node === outputAreaWrapper) {
+          beforeOutputArea = false;
+        } else {
+          MessageLoop.sendMessage(widget, msg);
+
+          if (beforeOutputArea) {
+            this.parent!.node.insertBefore(widget.node, outputAreaWrapper);
+          } else {
+            this.parent!.node.appendChild(widget.node);
+          }
+
+          // Force setting isVisible to true as it requires the parent widget to be
+          // visible. But that flag will be set only during the `onAfterAttach` call.
+          if (!this.parent!.isHidden) {
+            widget.setFlag(Widget.Flag.IsVisible);
+          }
+
+          // Not called in NotebookWindowedLayout to avoid outputArea
+          // widgets unwanted update or reset.
+          MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);
+        }
+      }
+    }
+  }
+
+  /**
+   * A message handler invoked on an `'after-detach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onAfterDetach(msg: Message): void {
+    for (const widget of this) {
+      // TODO we could improve this further by removing outputs based
+      // on their mime type (for example plain/text or markdown could safely be detached)
+      // If the cell is out of the view port, its children are already detached -> skip detaching
+      if (
+        !widget.hasClass(CELL_OUTPUT_WRAPPER_CLASS) &&
+        widget.node.isConnected
+      ) {
+        // Not called in NotebookWindowedLayout for windowed notebook
+        MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);
+
+        this.parent!.node.removeChild(widget.node);
+
+        MessageLoop.sendMessage(widget, msg);
+      }
+    }
+  }
+}
+
 /**
  * A widget for a code cell.
  */
@@ -733,48 +990,143 @@ export class CodeCell extends Cell<ICodeCellModel> {
    * Construct a code cell widget.
    */
   constructor(options: CodeCell.IOptions) {
-    super(options);
+    super({ layout: new CodeCellLayout(), ...options, placeholder: true });
     this.addClass(CODE_CELL_CLASS);
+    const trans = this.translator.load('jupyterlab');
 
     // Only save options not handled by parent constructor.
     const rendermime = (this._rendermime = options.rendermime);
     const contentFactory = this.contentFactory;
     const model = this.model;
+    this.maxNumberOutputs = options.maxNumberOutputs;
+
+    // Note that modifying the below label warrants one to also modify
+    // the same in this._outputLengthHandler. Ideally, this label must
+    // have been a constant and used in both places but it is not done
+    // so because of limitations in the translation manager.
+    const ariaLabel =
+      model.outputs.length === 0
+        ? trans.__('Code Cell Content')
+        : trans.__('Code Cell Content with Output');
+    this.node.setAttribute('aria-label', ariaLabel);
+
+    const output = (this._output = new OutputArea({
+      model: this.model.outputs,
+      rendermime,
+      contentFactory: contentFactory,
+      maxNumberOutputs: this.maxNumberOutputs,
+      translator: this.translator,
+      promptOverlay: true,
+      inputHistoryScope: options.inputHistoryScope
+    }));
+    output.addClass(CELL_OUTPUT_AREA_CLASS);
+    output.toggleScrolling.connect(() => {
+      this.outputsScrolled = !this.outputsScrolled;
+    });
 
-    if (!options.placeholder) {
-      // Insert the output before the cell footer.
-      const outputWrapper = (this._outputWrapper = new Panel());
-      outputWrapper.addClass(CELL_OUTPUT_WRAPPER_CLASS);
-      const outputCollapser = new OutputCollapser();
-      outputCollapser.addClass(CELL_OUTPUT_COLLAPSER_CLASS);
-      const output = (this._output = new OutputArea({
-        model: model.outputs,
-        rendermime,
-        contentFactory: contentFactory,
-        maxNumberOutputs: options.maxNumberOutputs
-      }));
-      output.addClass(CELL_OUTPUT_AREA_CLASS);
-      // Set a CSS if there are no outputs, and connect a signal for future
-      // changes to the number of outputs. This is for conditional styling
-      // if there are no outputs.
-      if (model.outputs.length === 0) {
-        this.addClass(NO_OUTPUTS_CLASS);
-      }
-      output.outputLengthChanged.connect(this._outputLengthHandler, this);
-      outputWrapper.addWidget(outputCollapser);
-      outputWrapper.addWidget(output);
-      (this.layout as PanelLayout).insertWidget(2, new ResizeHandle(this.node));
-      (this.layout as PanelLayout).insertWidget(3, outputWrapper);
-
-      if (model.isDirty) {
-        this.addClass(DIRTY_CLASS);
-      }
+    // Defer setting placeholder as OutputArea must be instantiated before initializing the DOM
+    this.placeholder = options.placeholder ?? true;
 
-      this._outputPlaceholder = new OutputPlaceholder(() => {
+    model.outputs.changed.connect(this.onOutputChanged, this);
+    model.outputs.stateChanged.connect(this.onOutputChanged, this);
+    model.stateChanged.connect(this.onStateChanged, this);
+  }
+
+  /**
+   * Maximum number of outputs to display.
+   */
+  protected maxNumberOutputs: number | undefined;
+
+  /**
+   * Create children widgets.
+   */
+  protected initializeDOM(): void {
+    if (!this.placeholder) {
+      return;
+    }
+
+    super.initializeDOM();
+
+    this.setPrompt(this.prompt);
+
+    // Insert the output before the cell footer.
+    const outputWrapper = (this._outputWrapper = new Panel());
+    outputWrapper.addClass(CELL_OUTPUT_WRAPPER_CLASS);
+    const outputCollapser = new OutputCollapser();
+    outputCollapser.addClass(CELL_OUTPUT_COLLAPSER_CLASS);
+    outputWrapper.addWidget(outputCollapser);
+    // Set a CSS if there are no outputs, and connect a signal for future
+    // changes to the number of outputs. This is for conditional styling
+    // if there are no outputs.
+    if (this.model.outputs.length === 0) {
+      this.addClass(NO_OUTPUTS_CLASS);
+    }
+    this._output.outputLengthChanged.connect(this._outputLengthHandler, this);
+    outputWrapper.addWidget(this._output);
+    const layout = this.layout as PanelLayout;
+    const resizeHandle = new ResizeHandle(this.node);
+    resizeHandle.sizeChanged.connect(this._sizeChangedHandler, this);
+    layout.insertWidget(layout.widgets.length - 1, resizeHandle);
+    layout.insertWidget(layout.widgets.length - 1, outputWrapper);
+
+    if (this.model.isDirty) {
+      this.addClass(DIRTY_CLASS);
+    }
+
+    this._outputPlaceholder = new OutputPlaceholder({
+      callback: () => {
         this.outputHidden = !this.outputHidden;
-      });
+      },
+      text: this.getOutputPlaceholderText(),
+      translator: this.translator
+    });
+
+    const layoutWrapper = outputWrapper.layout as PanelLayout;
+    if (this.outputHidden) {
+      layoutWrapper.removeWidget(this._output);
+      layoutWrapper.addWidget(this._outputPlaceholder);
+      if (this.inputHidden && !outputWrapper.isHidden) {
+        this._outputWrapper!.hide();
+      }
     }
-    model.stateChanged.connect(this.onStateChanged, this);
+
+    const trans = this.translator.load('jupyterlab');
+    const ariaLabel =
+      this.model.outputs.length === 0
+        ? trans.__('Code Cell Content')
+        : trans.__('Code Cell Content with Output');
+    this.node.setAttribute('aria-label', ariaLabel);
+  }
+
+  protected getOutputPlaceholderText(): string | undefined {
+    const firstOutput = this.model.outputs.get(0);
+    const outputData = firstOutput?.data;
+    if (!outputData) {
+      return undefined;
+    }
+    const supportedOutputTypes = [
+      'text/html',
+      'image/svg+xml',
+      'application/pdf',
+      'text/markdown',
+      'text/plain',
+      'application/vnd.jupyter.stderr',
+      'application/vnd.jupyter.stdout',
+      'text'
+    ];
+    const preferredOutput = supportedOutputTypes.find(mt => {
+      const data = firstOutput.data[mt];
+      return (Array.isArray(data) ? typeof data[0] : typeof data) === 'string';
+    });
+    const dataToDisplay = firstOutput.data[preferredOutput ?? ''];
+    if (dataToDisplay !== undefined) {
+      return (
+        Array.isArray(dataToDisplay)
+          ? dataToDisplay
+          : (dataToDisplay as string)?.split('\n')
+      )?.find(part => part !== '');
+    }
+    return undefined;
   }
 
   /**
@@ -792,6 +1144,60 @@ export class CodeCell extends Cell<ICodeCellModel> {
     return this;
   }
 
+  get headings(): Cell.IHeading[] {
+    if (!this._headingsCache) {
+      const headings: Cell.IHeading[] = [];
+
+      // Iterate over the code cell outputs to check for Markdown or HTML from which we can generate ToC headings...
+      const outputs = this.model.outputs;
+      for (let j = 0; j < outputs.length; j++) {
+        const m = outputs.get(j);
+
+        let htmlType: string | null = null;
+        let mdType: string | null = null;
+
+        Object.keys(m.data).forEach(t => {
+          if (!mdType && TableOfContentsUtils.Markdown.isMarkdown(t)) {
+            mdType = t;
+          } else if (!htmlType && TableOfContentsUtils.isHTML(t)) {
+            htmlType = t;
+          }
+        });
+
+        // Parse HTML output
+        if (htmlType) {
+          headings.push(
+            ...TableOfContentsUtils.getHTMLHeadings(
+              this._rendermime.sanitizer.sanitize(m.data[htmlType] as string)
+            ).map(heading => {
+              return {
+                ...heading,
+                outputIndex: j,
+                type: Cell.HeadingType.HTML
+              };
+            })
+          );
+        } else if (mdType) {
+          headings.push(
+            ...TableOfContentsUtils.Markdown.getHeadings(
+              m.data[mdType] as string
+            ).map(heading => {
+              return {
+                ...heading,
+                outputIndex: j,
+                type: Cell.HeadingType.Markdown
+              };
+            })
+          );
+        }
+      }
+
+      this._headingsCache = headings;
+    }
+
+    return [...this._headingsCache!];
+  }
+
   /**
    * Get the output area for the cell.
    */
@@ -809,19 +1215,25 @@ export class CodeCell extends Cell<ICodeCellModel> {
     if (this._outputHidden === value) {
       return;
     }
-    const layout = this._outputWrapper.layout as PanelLayout;
-    if (value) {
-      layout.removeWidget(this._output);
-      layout.addWidget(this._outputPlaceholder);
-      if (this.inputHidden && !this._outputWrapper.isHidden) {
-        this._outputWrapper.hide();
-      }
-    } else {
-      if (this._outputWrapper.isHidden) {
-        this._outputWrapper.show();
+
+    if (!this.placeholder) {
+      const layout = this._outputWrapper!.layout as PanelLayout;
+      if (value) {
+        layout.removeWidget(this._output);
+        layout.addWidget(this._outputPlaceholder!);
+        if (this.inputHidden && !this._outputWrapper!.isHidden) {
+          this._outputWrapper!.hide();
+        }
+        if (this._outputPlaceholder) {
+          this._outputPlaceholder.text = this.getOutputPlaceholderText() ?? '';
+        }
+      } else {
+        if (this._outputWrapper!.isHidden) {
+          this._outputWrapper!.show();
+        }
+        layout.removeWidget(this._outputPlaceholder!);
+        layout.addWidget(this._output);
       }
-      layout.removeWidget(this._outputPlaceholder);
-      layout.addWidget(this._output);
     }
     this._outputHidden = value;
     if (this.syncCollapse) {
@@ -832,19 +1244,16 @@ export class CodeCell extends Cell<ICodeCellModel> {
   /**
    * Save view collapse state to model
    */
-  saveCollapseState() {
+  saveCollapseState(): void {
     // Because collapse state for a code cell involves two different pieces of
     // metadata (the `collapsed` and `jupyter` metadata keys), we block reacting
     // to changes in metadata until we have fully committed our changes.
     // Otherwise setting one key can trigger a write to the other key to
     // maintain the synced consistency.
-    this._savingMetadata = true;
-
-    try {
+    this.model.sharedModel.transact(() => {
       super.saveCollapseState();
 
-      const metadata = this.model.metadata;
-      const collapsed = this.model.metadata.get('collapsed');
+      const collapsed = this.model.getMetadata('collapsed');
 
       if (
         (this.outputHidden && collapsed === true) ||
@@ -856,13 +1265,11 @@ export class CodeCell extends Cell<ICodeCellModel> {
       // Do not set jupyter.outputs_hidden since it is redundant. See
       // and https://github.com/jupyter/nbformat/issues/137
       if (this.outputHidden) {
-        metadata.set('collapsed', true);
+        this.model.setMetadata('collapsed', true);
       } else {
-        metadata.delete('collapsed');
+        this.model.deleteMetadata('collapsed');
       }
-    } finally {
-      this._savingMetadata = false;
-    }
+    }, false);
   }
 
   /**
@@ -871,9 +1278,9 @@ export class CodeCell extends Cell<ICodeCellModel> {
    * We consider the `collapsed` metadata key as the source of truth for outputs
    * being hidden.
    */
-  loadCollapseState() {
+  loadCollapseState(): void {
     super.loadCollapseState();
-    this.outputHidden = !!this.model.metadata.get('collapsed');
+    this.outputHidden = !!this.model.getMetadata('collapsed');
   }
 
   /**
@@ -893,9 +1300,8 @@ export class CodeCell extends Cell<ICodeCellModel> {
   /**
    * Save view collapse state to model
    */
-  saveScrolledState() {
-    const { metadata } = this.model;
-    const current = metadata.get('scrolled');
+  saveScrolledState(): void {
+    const current = this.model.getMetadata('scrolled');
 
     if (
       (this.outputsScrolled && current === true) ||
@@ -904,23 +1310,21 @@ export class CodeCell extends Cell<ICodeCellModel> {
       return;
     }
     if (this.outputsScrolled) {
-      metadata.set('scrolled', true);
+      this.model.setMetadata('scrolled', true);
     } else {
-      metadata.delete('scrolled');
+      this.model.deleteMetadata('scrolled');
     }
   }
 
   /**
    * Revert view collapse state from model.
    */
-  loadScrolledState() {
-    const metadata = this.model.metadata;
-
+  loadScrolledState(): void {
     // We don't have the notion of 'auto' scrolled, so we make it false.
-    if (metadata.get('scrolled') === 'auto') {
+    if (this.model.getMetadata('scrolled') === 'auto') {
       this.outputsScrolled = false;
     } else {
-      this.outputsScrolled = !!metadata.get('scrolled');
+      this.outputsScrolled = !!this.model.getMetadata('scrolled');
     }
   }
 
@@ -949,10 +1353,13 @@ export class CodeCell extends Cell<ICodeCellModel> {
    * is hidden without accessing private state.
    */
   protected handleInputHidden(value: boolean): void {
-    if (!value && this._outputWrapper.isHidden) {
-      this._outputWrapper.show();
-    } else if (value && !this._outputWrapper.isHidden && this._outputHidden) {
-      this._outputWrapper.hide();
+    if (this.placeholder) {
+      return;
+    }
+    if (!value && this._outputWrapper!.isHidden) {
+      this._outputWrapper!.show();
+    } else if (value && !this._outputWrapper!.isHidden && this._outputHidden) {
+      this._outputWrapper!.hide();
     }
   }
 
@@ -965,7 +1372,8 @@ export class CodeCell extends Cell<ICodeCellModel> {
       model: this.model,
       contentFactory: this.contentFactory,
       rendermime: this._rendermime,
-      placeholder: false
+      placeholder: false,
+      translator: this.translator
     });
   }
 
@@ -1019,16 +1427,19 @@ export class CodeCell extends Cell<ICodeCellModel> {
   }
 
   /**
-   * Handle changes in the metadata.
+   * Callback on output changes
    */
-  protected onMetadataChanged(
-    model: IObservableJSON,
-    args: IObservableMap.IChangedArgs<JSONValue>
-  ): void {
-    if (this._savingMetadata) {
-      // We are in middle of a metadata transaction, so don't react to it.
-      return;
+  protected onOutputChanged(): void {
+    this._headingsCache = null;
+    if (this._outputPlaceholder && this.outputHidden) {
+      this._outputPlaceholder.text = this.getOutputPlaceholderText() ?? '';
     }
+  }
+
+  /**
+   * Handle changes in the metadata.
+   */
+  protected onMetadataChanged(model: CellModel, args: IMapChange): void {
     switch (args.key) {
       case 'scrolled':
         if (this.syncScrolled) {
@@ -1052,16 +1463,28 @@ export class CodeCell extends Cell<ICodeCellModel> {
   private _outputLengthHandler(sender: OutputArea, args: number) {
     const force = args === 0 ? true : false;
     this.toggleClass(NO_OUTPUTS_CLASS, force);
+    const trans = this.translator.load('jupyterlab');
+    const ariaLabel = force
+      ? trans.__('Code Cell Content')
+      : trans.__('Code Cell Content with Output');
+    this.node.setAttribute('aria-label', ariaLabel);
   }
 
+  /**
+   * Handle changes in input/output proportions in side-by-side mode.
+   */
+  private _sizeChangedHandler(sender: ResizeHandle) {
+    this._displayChanged.emit();
+  }
+
+  private _headingsCache: Cell.IHeading[] | null = null;
   private _rendermime: IRenderMimeRegistry;
   private _outputHidden = false;
   private _outputsScrolled: boolean;
-  private _outputWrapper: Widget;
-  private _outputPlaceholder: OutputPlaceholder;
+  private _outputWrapper: Widget | null = null;
+  private _outputPlaceholder: OutputPlaceholder | null = null;
   private _output: OutputArea;
   private _syncScrolled = false;
-  private _savingMetadata = false;
 }
 
 /**
@@ -1072,6 +1495,10 @@ export namespace CodeCell {
    * An options object for initializing a base cell widget.
    */
   export interface IOptions extends Cell.IOptions<ICodeCellModel> {
+    /**
+     * Code cell layout.
+     */
+    layout?: CodeCellLayout;
     /**
      * The mime renderer for the cell widget.
      */
@@ -1087,20 +1514,24 @@ export namespace CodeCell {
     metadata?: JSONObject
   ): Promise<KernelMessage.IExecuteReplyMsg | void> {
     const model = cell.model;
-    const code = model.value.text;
+    const code = model.sharedModel.getSource();
     if (!code.trim() || !sessionContext.session?.kernel) {
-      model.clearExecution();
+      model.sharedModel.transact(() => {
+        model.clearExecution();
+      }, false);
       return;
     }
-    const cellId = { cellId: model.id };
+    const cellId = { cellId: model.sharedModel.getId() };
     metadata = {
-      ...model.metadata.toJSON(),
+      ...model.metadata,
       ...metadata,
       ...cellId
     };
     const { recordTiming } = metadata;
-    model.clearExecution();
-    cell.outputHidden = false;
+    model.sharedModel.transact(() => {
+      model.clearExecution();
+      cell.outputHidden = false;
+    }, false);
     cell.setPrompt('*');
     model.trusted = true;
     let future:
@@ -1137,15 +1568,15 @@ export namespace CodeCell {
           const value = msg.header.date || new Date().toISOString();
           const timingInfo: any = Object.assign(
             {},
-            model.metadata.get('execution')
+            model.getMetadata('execution')
           );
           timingInfo[`iopub.${label}`] = value;
-          model.metadata.set('execution', timingInfo);
+          model.setMetadata('execution', timingInfo);
           return true;
         };
         cell.outputArea.future.registerMessageHook(recordTimingHook);
       } else {
-        model.metadata.delete('execution');
+        model.deleteMetadata('execution');
       }
       // Save this execution's future so we can compare in the catch below.
       future = cell.outputArea.future;
@@ -1154,7 +1585,7 @@ export namespace CodeCell {
       if (recordTiming) {
         const timingInfo = Object.assign(
           {},
-          model.metadata.get('execution') as any
+          model.getMetadata('execution') as any
         );
         const started = msg.metadata.started as string;
         // Started is not in the API, but metadata IPyKernel sends
@@ -1165,7 +1596,7 @@ export namespace CodeCell {
         const finished = msg.header.date as string;
         timingInfo['shell.execute_reply'] =
           finished || new Date().toISOString();
-        model.metadata.set('execution', timingInfo);
+        model.setMetadata('execution', timingInfo);
       }
       return msg;
     } catch (e) {
@@ -1198,29 +1629,44 @@ export abstract class AttachmentsCell<
    */
   handleEvent(event: Event): void {
     switch (event.type) {
-      case 'paste':
-        this._evtPaste(event as ClipboardEvent);
-        break;
-      case 'dragenter':
-        event.preventDefault();
-        break;
-      case 'dragover':
-        event.preventDefault();
-        break;
-      case 'drop':
-        this._evtNativeDrop(event as DragEvent);
-        break;
       case 'lm-dragover':
-        this._evtDragOver(event as IDragEvent);
+        this._evtDragOver(event as Drag.Event);
         break;
       case 'lm-drop':
-        this._evtDrop(event as IDragEvent);
+        this._evtDrop(event as Drag.Event);
         break;
       default:
         break;
     }
   }
 
+  /**
+   * Get the editor options at initialization.
+   *
+   * @returns Editor options
+   */
+  protected getEditorOptions(): InputArea.IOptions['editorOptions'] {
+    const base = super.getEditorOptions() ?? {};
+    base.extensions = [
+      ...(base.extensions ?? []),
+      EditorView.domEventHandlers({
+        dragenter: (event: DragEvent) => {
+          event.preventDefault();
+        },
+        dragover: (event: DragEvent) => {
+          event.preventDefault();
+        },
+        drop: (event: DragEvent) => {
+          this._evtNativeDrop(event);
+        },
+        paste: (event: ClipboardEvent) => {
+          this._evtPaste(event);
+        }
+      })
+    ];
+    return base;
+  }
+
   /**
    * Modify the cell source to include a reference to the attachment.
    */
@@ -1234,13 +1680,10 @@ export abstract class AttachmentsCell<
    */
   protected onAfterAttach(msg: Message): void {
     super.onAfterAttach(msg);
+
     const node = this.node;
     node.addEventListener('lm-dragover', this);
     node.addEventListener('lm-drop', this);
-    node.addEventListener('dragenter', this);
-    node.addEventListener('dragover', this);
-    node.addEventListener('drop', this);
-    node.addEventListener('paste', this);
   }
 
   /**
@@ -1249,15 +1692,13 @@ export abstract class AttachmentsCell<
    */
   protected onBeforeDetach(msg: Message): void {
     const node = this.node;
-    node.removeEventListener('drop', this);
-    node.removeEventListener('dragover', this);
-    node.removeEventListener('dragenter', this);
-    node.removeEventListener('paste', this);
     node.removeEventListener('lm-dragover', this);
     node.removeEventListener('lm-drop', this);
+
+    super.onBeforeDetach(msg);
   }
 
-  private _evtDragOver(event: IDragEvent) {
+  private _evtDragOver(event: Drag.Event) {
     const supportedMimeType = some(imageRendererFactory.mimeTypes, mimeType => {
       if (!event.mimeData.hasData(CONTENTS_MIME_RICH)) {
         return false;
@@ -1288,7 +1729,7 @@ export abstract class AttachmentsCell<
             continue;
           }
           items[i].getAsString(text => {
-            this.editor.replaceSelection?.(text);
+            this.editor!.replaceSelection?.(text);
           });
         }
         this._attachFiles(event.clipboardData.items);
@@ -1310,20 +1751,18 @@ export abstract class AttachmentsCell<
   /**
    * Handle the `'lm-drop'` event for the widget.
    */
-  private _evtDrop(event: IDragEvent): void {
-    const supportedMimeTypes = toArray(
-      filter(event.mimeData.types(), mimeType => {
-        if (mimeType === CONTENTS_MIME_RICH) {
-          const data = event.mimeData.getData(
-            CONTENTS_MIME_RICH
-          ) as DirListing.IContentsThunk;
-          return (
-            imageRendererFactory.mimeTypes.indexOf(data.model.mimetype) !== -1
-          );
-        }
-        return imageRendererFactory.mimeTypes.indexOf(mimeType) !== -1;
-      })
-    );
+  private _evtDrop(event: Drag.Event): void {
+    const supportedMimeTypes = event.mimeData.types().filter(mimeType => {
+      if (mimeType === CONTENTS_MIME_RICH) {
+        const data = event.mimeData.getData(
+          CONTENTS_MIME_RICH
+        ) as DirListing.IContentsThunk;
+        return (
+          imageRendererFactory.mimeTypes.indexOf(data.model.mimetype) !== -1
+        );
+      }
+      return imageRendererFactory.mimeTypes.indexOf(mimeType) !== -1;
+    });
     if (supportedMimeTypes.length === 0) {
       return;
     }
@@ -1438,8 +1877,11 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
    * Construct a Markdown cell widget.
    */
   constructor(options: MarkdownCell.IOptions) {
-    super(options);
+    super({ ...options, placeholder: true });
     this.addClass(MARKDOWN_CELL_CLASS);
+    this.model.contentChanged.connect(this.onContentChanged, this);
+    const trans = this.translator.load('jupyterlab');
+    this.node.setAttribute('aria-label', trans.__('Markdown Cell Content'));
     // Ensure we can resolve attachments:
     this._rendermime = options.rendermime.clone({
       resolver: new AttachmentsResolver({
@@ -1448,97 +1890,125 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
       })
     });
 
-    // Stop codemirror handling paste
-    this.editor.setOption('handlePaste', false);
+    this._renderer = this._rendermime.createRenderer('text/markdown');
+    this._renderer.addClass(MARKDOWN_OUTPUT_CLASS);
 
     // Check if heading cell is set to be collapsed
-    this._headingCollapsed = (this.model.metadata.get(
+    this._headingCollapsed = (this.model.getMetadata(
       MARKDOWN_HEADING_COLLAPSED
     ) ?? false) as boolean;
 
-    // Throttle the rendering rate of the widget.
+    this._showEditorForReadOnlyMarkdown =
+      options.showEditorForReadOnlyMarkdown ??
+      MarkdownCell.defaultShowEditorForReadOnlyMarkdown;
+
+    // Defer setting placeholder as the renderer must be instantiated before initializing the DOM
+    this.placeholder = options.placeholder ?? true;
+
     this._monitor = new ActivityMonitor({
       signal: this.model.contentChanged,
       timeout: RENDER_TIMEOUT
     });
-    this._monitor.activityStopped.connect(() => {
-      if (this._rendered) {
-        this.update();
-      }
-    }, this);
-
-    void this._updateRenderedInput().then(() => {
-      this._ready.resolve(void 0);
-    });
-    this.renderCollapseButtons(this._renderer!);
-    this.renderInput(this._renderer!);
-    this._showEditorForReadOnlyMarkdown =
-      options.showEditorForReadOnlyMarkdown ??
-      MarkdownCell.defaultShowEditorForReadOnlyMarkdown;
-  }
 
-  /**
-   * A promise that resolves when the widget renders for the first time.
-   */
-  get ready(): Promise<void> {
-    return this._ready.promise;
+    // Throttle the rendering rate of the widget.
+    this.ready
+      .then(() => {
+        if (this.isDisposed) {
+          // Bail early
+          return;
+        }
+        this._monitor.activityStopped.connect(() => {
+          if (this._rendered) {
+            this.update();
+          }
+        }, this);
+      })
+      .catch(reason => {
+        console.error('Failed to be ready', reason);
+      });
   }
 
   /**
-   * Text that represents the heading if cell is a heading.
+   * Text that represents the highest heading (i.e. lowest level) if cell is a heading.
    * Returns empty string if not a heading.
    */
   get headingInfo(): { text: string; level: number } {
-    let text = this.model.value.text;
-    const lines = marked.lexer(text);
-    let line: any;
-    for (line of lines) {
-      if (line.type === 'heading') {
-        return { text: line.text, level: line.depth };
-      } else if (line.type === 'html') {
-        let match = line.raw.match(/<h([1-6])(.*?)>(.*?)<\/h\1>/);
-        if (match?.[3]) {
-          return { text: match[3], level: parseInt(match[1]) };
-        }
-        return { text: '', level: -1 };
-      }
+    // Use table of content algorithm for consistency
+    const headings = this.headings;
+
+    if (headings.length > 0) {
+      // Return the highest level
+      const { text, level } = headings.reduce(
+        (prev, curr) => (prev.level <= curr.level ? prev : curr),
+        headings[0]
+      );
+      return { text, level };
+    } else {
+      return { text: '', level: -1 };
+    }
+  }
+
+  get headings(): Cell.IHeading[] {
+    if (!this._headingsCache) {
+      // Use table of content algorithm for consistency
+      const headings = TableOfContentsUtils.Markdown.getHeadings(
+        this.model.sharedModel.getSource()
+      );
+      this._headingsCache = headings.map(h => {
+        return { ...h, type: Cell.HeadingType.Markdown };
+      });
     }
-    return { text: '', level: -1 };
+
+    return [...this._headingsCache!];
   }
 
+  /**
+   * Whether the heading is collapsed or not.
+   */
   get headingCollapsed(): boolean {
     return this._headingCollapsed;
   }
   set headingCollapsed(value: boolean) {
-    this._headingCollapsed = value;
-    if (value) {
-      this.model.metadata.set(MARKDOWN_HEADING_COLLAPSED, value);
-    } else if (this.model.metadata.has(MARKDOWN_HEADING_COLLAPSED)) {
-      this.model.metadata.delete(MARKDOWN_HEADING_COLLAPSED);
-    }
-    const collapseButton = this.inputArea.promptNode.getElementsByClassName(
-      HEADING_COLLAPSER_CLASS
-    )[0];
-    if (collapseButton) {
+    if (this._headingCollapsed !== value) {
+      this._headingCollapsed = value;
       if (value) {
-        collapseButton.classList.add('jp-mod-collapsed');
-      } else {
-        collapseButton.classList.remove('jp-mod-collapsed');
+        this.model.setMetadata(MARKDOWN_HEADING_COLLAPSED, value);
+      } else if (
+        this.model.getMetadata(MARKDOWN_HEADING_COLLAPSED) !== 'undefined'
+      ) {
+        this.model.deleteMetadata(MARKDOWN_HEADING_COLLAPSED);
       }
+      const collapseButton = this.inputArea?.promptNode.getElementsByClassName(
+        HEADING_COLLAPSER_CLASS
+      )[0];
+      if (collapseButton) {
+        if (value) {
+          collapseButton.classList.add('jp-mod-collapsed');
+        } else {
+          collapseButton.classList.remove('jp-mod-collapsed');
+        }
+      }
+      this.renderCollapseButtons(this._renderer);
+      this._headingCollapsedChanged.emit(this._headingCollapsed);
     }
-    this.renderCollapseButtons(this._renderer!);
   }
 
+  /**
+   * Number of collapsed sub cells.
+   */
   get numberChildNodes(): number {
     return this._numberChildNodes;
   }
   set numberChildNodes(value: number) {
     this._numberChildNodes = value;
-    this.renderCollapseButtons(this._renderer!);
+    this.renderCollapseButtons(this._renderer);
   }
 
-  get toggleCollapsedSignal(): Signal<this, boolean> {
-    return this._toggleCollapsedSignal;
+  /**
+   * Signal emitted when the cell collapsed state changes.
+   */
+  get headingCollapsedChanged(): ISignal<MarkdownCell, boolean> {
+    return this._headingCollapsedChanged;
   }
 
   /**
@@ -1556,16 +2026,22 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
       return;
     }
     this._rendered = value;
-    this._handleRendered();
-    // Refreshing an editor can be really expensive, so we don't call it from
-    // _handleRendered, since _handledRendered is also called on every update
-    // request.
-    if (!this._rendered) {
-      this.editor.refresh();
-    }
+    this._handleRendered()
+      .then(() => {
+        // If the rendered state changed, raise an event.
+        this._displayChanged.emit();
+        this._renderedChanged.emit(this._rendered);
+      })
+      .catch(reason => {
+        console.error('Failed to render', reason);
+      });
+  }
 
-    // If the rendered state changed, raise an event.
-    this._displayChanged.emit();
+  /**
+   * Signal emitted when the markdown cell rendered state changes
+   */
+  get renderedChanged(): ISignal<MarkdownCell, boolean> {
+    return this._renderedChanged;
   }
 
   /*
@@ -1581,6 +2057,16 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
     }
   }
 
+  /**
+   * Renderer
+   */
+  get renderer(): IRenderMime.IRenderer {
+    return this._renderer;
+  }
+
+  /**
+   * Dispose of the resources held by the widget.
+   */
   dispose(): void {
     if (this.isDisposed) {
       return;
@@ -1589,20 +2075,35 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
     super.dispose();
   }
 
+  /**
+   * Create children widgets.
+   */
+  protected initializeDOM(): void {
+    if (!this.placeholder) {
+      return;
+    }
+
+    super.initializeDOM();
+
+    this.renderCollapseButtons(this._renderer!);
+
+    this._handleRendered().catch(reason => {
+      console.error('Failed to render', reason);
+    });
+  }
+
   protected maybeCreateCollapseButton(): void {
+    const { level } = this.headingInfo;
     if (
-      this.headingInfo.level > 0 &&
-      this.inputArea.promptNode.getElementsByClassName(HEADING_COLLAPSER_CLASS)
+      level > 0 &&
+      this.inputArea?.promptNode.getElementsByClassName(HEADING_COLLAPSER_CLASS)
         .length == 0
     ) {
       let collapseButton = this.inputArea.promptNode.appendChild(
         document.createElement('button')
       );
       collapseButton.className = `jp-Button ${HEADING_COLLAPSER_CLASS}`;
-      collapseButton.setAttribute(
-        'data-heading-level',
-        this.headingInfo.level.toString()
-      );
+      collapseButton.setAttribute('data-heading-level', level.toString());
       if (this._headingCollapsed) {
         collapseButton.classList.add('jp-mod-collapsed');
       } else {
@@ -1610,49 +2111,65 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
       }
       collapseButton.onclick = (event: Event) => {
         this.headingCollapsed = !this.headingCollapsed;
-        this._toggleCollapsedSignal.emit(this._headingCollapsed);
       };
     }
   }
 
+  /**
+   * Create, update or remove the hidden cells button.
+   * Note that the actual visibility is controlled in Static Notebook by toggling jp-mod-showHiddenCellsButton class.
+   */
   protected maybeCreateOrUpdateExpandButton(): void {
-    const expandButton = this.node.getElementsByClassName(
+    const showHiddenCellsButtonList = this.node.getElementsByClassName(
       SHOW_HIDDEN_CELLS_CLASS
     );
-    // Create the "show hidden" button if not already created
-    if (
+    let trans = this.translator.load('jupyterlab');
+    let buttonText = trans._n(
+      '%1 cell hidden',
+      '%1 cells hidden',
+      this._numberChildNodes
+    );
+    let needToCreateButton =
       this.headingCollapsed &&
-      expandButton.length === 0 &&
-      this._numberChildNodes > 0
-    ) {
-      const numberChildNodes = document.createElement('button');
-      numberChildNodes.className = `bp3-button bp3-minimal jp-Button ${SHOW_HIDDEN_CELLS_CLASS}`;
-      addIcon.render(numberChildNodes);
-      const numberChildNodesText = document.createElement('div');
-      numberChildNodesText.nodeValue = `${this._numberChildNodes} cell${
-        this._numberChildNodes > 1 ? 's' : ''
-      } hidden`;
-      numberChildNodes.appendChild(numberChildNodesText);
-      numberChildNodes.onclick = () => {
+      this._numberChildNodes > 0 &&
+      showHiddenCellsButtonList.length == 0;
+    if (needToCreateButton) {
+      const newShowHiddenCellsButton = document.createElement('button');
+      newShowHiddenCellsButton.className = `jp-mod-minimal jp-Button ${SHOW_HIDDEN_CELLS_CLASS}`;
+      addIcon.render(newShowHiddenCellsButton);
+      const buttonTextElement = document.createElement('div');
+      buttonTextElement.textContent = buttonText;
+      newShowHiddenCellsButton.appendChild(buttonTextElement);
+      newShowHiddenCellsButton.onclick = () => {
         this.headingCollapsed = false;
-        this._toggleCollapsedSignal.emit(this._headingCollapsed);
       };
-      this.node.appendChild(numberChildNodes);
-    } else if (expandButton?.[0]?.childNodes?.length > 1) {
-      // If the heading is collapsed, update text
-      if (this._headingCollapsed) {
-        expandButton[0].childNodes[1].textContent = `${
-          this._numberChildNodes
-        } cell${this._numberChildNodes > 1 ? 's' : ''} hidden`;
-        // If the heading isn't collapsed, remove the button
-      } else {
-        for (const el of Array.from(expandButton)) {
-          this.node.removeChild(el);
-        }
+      this.node.appendChild(newShowHiddenCellsButton);
+    }
+    let needToUpdateButtonText =
+      this.headingCollapsed &&
+      this._numberChildNodes > 0 &&
+      showHiddenCellsButtonList.length == 1;
+    if (needToUpdateButtonText) {
+      showHiddenCellsButtonList[0].childNodes[1].textContent = buttonText;
+    }
+    let needToRemoveButton = !(
+      this.headingCollapsed && this._numberChildNodes > 0
+    );
+    if (needToRemoveButton) {
+      for (const button of showHiddenCellsButtonList) {
+        this.node.removeChild(button);
       }
     }
   }
 
+  /**
+   * Callback on content changed
+   */
+  protected onContentChanged(): void {
+    super.onContentChanged();
+    this._headingsCache = null;
+  }
+
   /**
    * Render the collapse button for heading cells,
    * and for collapsed heading cells render the "expand hidden cells"
@@ -1672,8 +2189,10 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
    */
   protected renderInput(widget: Widget): void {
     this.addClass(RENDERED_CLASS);
-    this.renderCollapseButtons(widget);
-    this.inputArea.renderInput(widget);
+    if (!this.placeholder && !this.isDisposed) {
+      this.renderCollapseButtons(widget);
+      this.inputArea!.renderInput(widget);
+    }
   }
 
   /**
@@ -1681,7 +2200,19 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
    */
   protected showEditor(): void {
     this.removeClass(RENDERED_CLASS);
-    this.inputArea.showEditor();
+    if (!this.placeholder && !this.isDisposed) {
+      this.inputArea!.showEditor();
+      // if this is going to be a heading, place the cursor accordingly
+      let numHashAtStart = (this.model.sharedModel
+        .getSource()
+        .match(/^#+/g) || [''])[0].length;
+      if (numHashAtStart > 0) {
+        this.inputArea!.editor.setCursorPosition({
+          column: numHashAtStart + 1,
+          line: 0
+        });
+      }
+    }
   }
 
   /*
@@ -1689,7 +2220,9 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
    */
   protected onUpdateRequest(msg: Message): void {
     // Make sure we are properly rendered.
-    this._handleRendered();
+    this._handleRendered().catch(reason => {
+      console.error('Failed to render', reason);
+    });
     super.onUpdateRequest(msg);
   }
 
@@ -1699,24 +2232,28 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
   protected updateCellSourceWithAttachment(
     attachmentName: string,
     URI?: string
-  ) {
+  ): void {
     const textToBeAppended = `![${attachmentName}](attachment:${
       URI ?? attachmentName
     })`;
-    this.editor.replaceSelection?.(textToBeAppended);
+    // TODO this should be done on the model...
+    this.editor?.replaceSelection?.(textToBeAppended);
   }
 
   /**
    * Handle the rendered state.
    */
-  private _handleRendered(): void {
+  private async _handleRendered(): Promise<void> {
     if (!this._rendered) {
       this.showEditor();
     } else {
       // TODO: It would be nice for the cell to provide a way for
       // its consumers to hook into when the rendering is done.
-      void this._updateRenderedInput();
-      this.renderInput(this._renderer!);
+      await this._updateRenderedInput();
+      if (this._rendered) {
+        // The rendered flag may be updated in the mean time
+        this.renderInput(this._renderer);
+      }
     }
   }
 
@@ -1724,19 +2261,20 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
    * Update the rendered input.
    */
   private _updateRenderedInput(): Promise<void> {
+    if (this.placeholder) {
+      return Promise.resolve();
+    }
+
     const model = this.model;
-    const text = (model && model.value.text) || DEFAULT_MARKDOWN_TEXT;
+    const text =
+      (model && model.sharedModel.getSource()) || DEFAULT_MARKDOWN_TEXT;
     // Do not re-render if the text has not changed.
     if (text !== this._prevText) {
       const mimeModel = new MimeModel({ data: { 'text/markdown': text } });
-      if (!this._renderer) {
-        this._renderer = this._rendermime.createRenderer('text/markdown');
-        this._renderer.addClass(MARKDOWN_OUTPUT_CLASS);
-      }
       this._prevText = text;
       return this._renderer.renderModel(mimeModel);
     }
-    return Promise.resolve(void 0);
+    return Promise.resolve();
   }
 
   /**
@@ -1748,19 +2286,21 @@ export class MarkdownCell extends AttachmentsCell<IMarkdownCellModel> {
       model: this.model,
       contentFactory: this.contentFactory,
       rendermime: this._rendermime,
-      placeholder: false
+      placeholder: false,
+      translator: this.translator
     });
   }
 
+  private _headingsCache: Cell.IHeading[] | null = null;
+  private _headingCollapsed: boolean;
+  private _headingCollapsedChanged = new Signal<MarkdownCell, boolean>(this);
   private _monitor: ActivityMonitor<ICellModel, void>;
   private _numberChildNodes: number;
-  private _headingCollapsed: boolean;
-  private _toggleCollapsedSignal = new Signal<this, boolean>(this);
-  private _renderer: IRenderMime.IRenderer | null = null;
+  private _prevText = '';
+  private _renderer: IRenderMime.IRenderer;
   private _rendermime: IRenderMimeRegistry;
   private _rendered = true;
-  private _prevText = '';
-  private _ready = new PromiseDelegate<void>();
+  private _renderedChanged = new Signal<this, boolean>(this);
   private _showEditorForReadOnlyMarkdown = true;
 }
 
@@ -1803,6 +2343,8 @@ export class RawCell extends Cell<IRawCellModel> {
   constructor(options: RawCell.IOptions) {
     super(options);
     this.addClass(RAW_CELL_CLASS);
+    const trans = this.translator.load('jupyterlab');
+    this.node.setAttribute('aria-label', trans.__('Raw Cell Content'));
   }
 
   /**
@@ -1813,7 +2355,8 @@ export class RawCell extends Cell<IRawCellModel> {
     return new constructor({
       model: this.model,
       contentFactory: this.contentFactory,
-      placeholder: false
+      placeholder: false,
+      translator: this.translator
     });
   }
 }
diff --git a/packages/cells/style/collapser.css b/packages/cells/style/collapser.css
index 13469e4890b9..01ab311ce741 100644
--- a/packages/cells/style/collapser.css
+++ b/packages/cells/style/collapser.css
@@ -5,8 +5,8 @@
 
 .jp-Collapser {
   flex: 0 0 var(--jp-cell-collapser-width);
-  padding: 0px;
-  margin: 0px;
+  padding: 0;
+  margin: 0;
   border: none;
   outline: none;
   background: transparent;
@@ -18,8 +18,25 @@
   display: block;
   width: 100%;
   box-sizing: border-box;
+
   /* height: 100% doesn't work because the height of its parent is computed from content */
   position: absolute;
-  top: 0px;
-  bottom: 0px;
+  top: 0;
+  bottom: 0;
+}
+
+/*-----------------------------------------------------------------------------
+| Printing
+|----------------------------------------------------------------------------*/
+
+/*
+Hiding collapsers in print mode.
+
+Note: input and output wrappers have "display: block" propery in print mode.
+*/
+
+@media print {
+  .jp-Collapser {
+    display: none;
+  }
 }
diff --git a/packages/cells/style/headerfooter.css b/packages/cells/style/headerfooter.css
index 5157abaacc9d..8fe7dc561bcf 100644
--- a/packages/cells/style/headerfooter.css
+++ b/packages/cells/style/headerfooter.css
@@ -10,10 +10,10 @@
 /* Hidden by zero height by default */
 .jp-CellHeader,
 .jp-CellFooter {
-  height: 0px;
+  height: 0;
   width: 100%;
-  padding: 0px;
-  margin: 0px;
+  padding: 0;
+  margin: 0;
   border: none;
   outline: none;
   background: transparent;
diff --git a/packages/cells/style/index.css b/packages/cells/style/index.css
index 68884f9bf4e5..2f25f99d5532 100644
--- a/packages/cells/style/index.css
+++ b/packages/cells/style/index.css
@@ -7,12 +7,13 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/rendermime/style/index.css');
+@import url('~@jupyterlab/attachments/style/index.css');
 @import url('~@lumino/dragdrop/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
+@import url('~@jupyterlab/documentsearch/style/index.css');
 @import url('~@jupyterlab/codemirror/style/index.css');
-@import url('~@jupyterlab/rendermime/style/index.css');
-@import url('~@jupyterlab/attachments/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
 @import url('~@jupyterlab/outputarea/style/index.css');
-
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('./base.css');
diff --git a/packages/cells/style/index.js b/packages/cells/style/index.js
index 6b319ba51d0d..cfdade93f4aa 100644
--- a/packages/cells/style/index.js
+++ b/packages/cells/style/index.js
@@ -7,12 +7,14 @@
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/rendermime/style/index.js';
+import '@jupyterlab/attachments/style/index.js';
 import '@lumino/dragdrop/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
+import '@jupyterlab/documentsearch/style/index.js';
 import '@jupyterlab/codemirror/style/index.js';
-import '@jupyterlab/rendermime/style/index.js';
-import '@jupyterlab/attachments/style/index.js';
 import '@jupyterlab/filebrowser/style/index.js';
 import '@jupyterlab/outputarea/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 
 import './base.css';
diff --git a/packages/cells/style/inputarea.css b/packages/cells/style/inputarea.css
index ec6f1620c0ae..3495e96a7f49 100644
--- a/packages/cells/style/inputarea.css
+++ b/packages/cells/style/inputarea.css
@@ -11,31 +11,23 @@
 .jp-InputArea {
   display: flex;
   flex-direction: row;
+  width: 100%;
   overflow: hidden;
 }
 
-body[data-format='mobile'] .jp-InputArea {
-  flex-direction: column;
-}
-
 .jp-InputArea-editor {
   flex: 1 1 auto;
   overflow: hidden;
-}
 
-.jp-InputArea-editor {
   /* This is the non-active, default styling */
   border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
-  border-radius: 0px;
+  border-radius: 0;
   background: var(--jp-cell-editor-background);
 }
 
-body[data-format='mobile'] .jp-InputArea-editor {
-  margin-left: var(--jp-notebook-padding);
-}
-
 .jp-InputPrompt {
   flex: 0 0 var(--jp-cell-prompt-width);
+  width: var(--jp-cell-prompt-width);
   color: var(--jp-cell-inprompt-font-color);
   font-family: var(--jp-cell-prompt-font-family);
   padding: var(--jp-code-padding);
@@ -44,12 +36,13 @@ body[data-format='mobile'] .jp-InputArea-editor {
   line-height: var(--jp-code-line-height);
   font-size: var(--jp-code-font-size);
   border: var(--jp-border-width) solid transparent;
-  opacity: var(--jp-cell-prompt-opacity);
+
   /* Right align prompt text, don't wrap to handle large prompt numbers */
   text-align: right;
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
+
   /* Disable text selection */
   -webkit-user-select: none;
   -moz-user-select: none;
@@ -57,7 +50,40 @@ body[data-format='mobile'] .jp-InputArea-editor {
   user-select: none;
 }
 
-body[data-format='mobile'] .jp-InputPrompt {
-  flex: 0 0 auto;
-  text-align: left;
+/*-----------------------------------------------------------------------------
+| Print
+|----------------------------------------------------------------------------*/
+@media print {
+  .jp-InputArea {
+    display: table;
+    table-layout: fixed;
+  }
+
+  .jp-InputArea-editor {
+    display: table-cell;
+    vertical-align: top;
+  }
+
+  .jp-InputPrompt {
+    display: table-cell;
+    vertical-align: top;
+  }
+}
+
+/*-----------------------------------------------------------------------------
+| Mobile
+|----------------------------------------------------------------------------*/
+@media only screen and (width <= 760px) {
+  .jp-InputArea {
+    flex-direction: column;
+  }
+
+  .jp-InputArea-editor {
+    margin-left: var(--jp-code-padding);
+  }
+
+  .jp-InputPrompt {
+    flex: 0 0 auto;
+    text-align: left;
+  }
 }
diff --git a/packages/cells/style/placeholder.css b/packages/cells/style/placeholder.css
index b70e3d677901..0f1357c139a6 100644
--- a/packages/cells/style/placeholder.css
+++ b/packages/cells/style/placeholder.css
@@ -10,19 +10,31 @@
 .jp-Placeholder {
   display: flex;
   flex-direction: row;
-  flex: 1 1 auto;
+  width: 100%;
 }
 
 .jp-Placeholder-prompt {
+  flex: 0 0 var(--jp-cell-prompt-width);
   box-sizing: border-box;
 }
 
 .jp-Placeholder-content {
   flex: 1 1 auto;
-  border: none;
-  background: transparent;
-  height: 20px;
+  padding: 4px 6px;
+  border: 1px solid transparent;
+  border-radius: 0;
+  background: none;
   box-sizing: border-box;
+  cursor: pointer;
+}
+
+.jp-Placeholder-contentContainer {
+  display: flex;
+}
+
+.jp-Placeholder-content:hover,
+.jp-InputPlaceholder > .jp-Placeholder-content:hover {
+  border-color: var(--jp-layout-color3);
 }
 
 .jp-Placeholder-content .jp-MoreHorizIcon {
@@ -34,6 +46,36 @@
 
 .jp-Placeholder-content .jp-MoreHorizIcon:hover {
   border: 1px solid var(--jp-border-color1);
-  box-shadow: 0px 0px 2px 0px rgba(0, 0, 0, 0.25);
+  box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.25);
   background-color: var(--jp-layout-color0);
 }
+
+.jp-PlaceholderText {
+  white-space: nowrap;
+  overflow-x: hidden;
+  color: var(--jp-inverse-layout-color3);
+  font-family: var(--jp-code-font-family);
+}
+
+.jp-InputPlaceholder > .jp-Placeholder-content {
+  border-color: var(--jp-cell-editor-border-color);
+  background: var(--jp-cell-editor-background);
+}
+
+/*-----------------------------------------------------------------------------
+| Print
+|----------------------------------------------------------------------------*/
+@media print {
+  .jp-Placeholder {
+    display: table;
+    table-layout: fixed;
+  }
+
+  .jp-Placeholder-content {
+    display: table-cell;
+  }
+
+  .jp-Placeholder-prompt {
+    display: table-cell;
+  }
+}
diff --git a/packages/cells/style/widget.css b/packages/cells/style/widget.css
index c7bd9c6f95f8..771adb77f85c 100644
--- a/packages/cells/style/widget.css
+++ b/packages/cells/style/widget.css
@@ -17,7 +17,7 @@
 
 .jp-Cell {
   padding: var(--jp-cell-padding);
-  margin: 0px;
+  margin: 0;
   border: none;
   outline: none;
   background: transparent;
@@ -31,8 +31,9 @@
 .jp-Cell-outputWrapper {
   display: flex;
   flex-direction: row;
-  padding: 0px;
-  margin: 0px;
+  padding: 0;
+  margin: 0;
+
   /* Added to reveal the box-shadow on the input and output collapsers. */
   overflow: visible;
 }
@@ -72,6 +73,11 @@
   overflow-y: auto;
   max-height: 24em;
   margin-left: var(--jp-private-cell-scrolling-output-offset);
+  resize: vertical;
+}
+
+.jp-CodeCell.jp-mod-outputsScrolled .jp-Cell-outputArea[style*='height'] {
+  max-height: unset;
 }
 
 .jp-CodeCell.jp-mod-outputsScrolled .jp-Cell-outputArea::after {
@@ -93,6 +99,9 @@
 }
 
 .jp-CodeCell.jp-mod-outputsScrolled .jp-OutputArea-prompt {
+  width: calc(
+    var(--jp-cell-prompt-width) - var(--jp-private-cell-scrolling-output-offset)
+  );
   flex: 0 0
     calc(
       var(--jp-cell-prompt-width) -
@@ -100,6 +109,10 @@
     );
 }
 
+.jp-CodeCell.jp-mod-outputsScrolled .jp-OutputArea-promptOverlay {
+  left: calc(-1 * var(--jp-private-cell-scrolling-output-offset));
+}
+
 /*-----------------------------------------------------------------------------
 | CodeCell
 |----------------------------------------------------------------------------*/
@@ -110,6 +123,7 @@
 
 .jp-MarkdownOutput {
   flex: 1 1 auto;
+  width: 100%;
   margin-top: 0;
   margin-bottom: 0;
   padding-left: var(--jp-code-padding);
@@ -121,35 +135,25 @@
 
 /* collapseHeadingButton (show always if hiddenCellsButton is _not_ shown) */
 .jp-collapseHeadingButton {
-  display: none;
+  display: flex;
   min-height: var(--jp-cell-collapser-min-height);
   font-size: var(--jp-code-font-size);
   position: absolute;
-  right: 0;
-  top: 0;
-  bottom: 0;
   background-color: transparent;
   background-size: 25px;
   background-repeat: no-repeat;
   background-position-x: center;
   background-position-y: top;
   background-image: var(--jp-icon-caret-down);
-  border: none;
-  cursor: pointer;
-}
-
-.jp-collapseHeadingButton:hover {
-  background-color: var(--jp-layout-color2);
+  right: 0;
+  top: 0;
+  bottom: 0;
 }
 
 .jp-collapseHeadingButton.jp-mod-collapsed {
   background-image: var(--jp-icon-caret-right);
 }
 
-:is(.jp-MarkdownCell:hover, .jp-mod-active) .jp-collapseHeadingButton {
-  display: flex;
-}
-
 /*
  set the container font size to match that of content
  so that the nested collapse buttons have the right size
@@ -192,14 +196,52 @@
   background-position-y: top;
 }
 
-.jp-showHiddenCellsButton {
+/* collapseHeadingButton (show only on (hover,active) if hiddenCellsButton is shown) */
+.jp-Notebook.jp-mod-showHiddenCellsButton .jp-collapseHeadingButton {
+  display: none;
+}
+
+.jp-Notebook.jp-mod-showHiddenCellsButton
+  :is(.jp-MarkdownCell:hover, .jp-mod-active)
+  .jp-collapseHeadingButton {
+  display: flex;
+}
+
+/* showHiddenCellsButton (only show if jp-mod-showHiddenCellsButton is set, which
+is a consequence of the showHiddenCellsButton option in Notebook Settings)*/
+.jp-Notebook.jp-mod-showHiddenCellsButton .jp-showHiddenCellsButton {
   margin-left: calc(var(--jp-cell-prompt-width) + 2 * var(--jp-code-padding));
   margin-top: var(--jp-code-padding);
   border: 1px solid var(--jp-border-color2);
   background-color: var(--jp-border-color3) !important;
   color: var(--jp-content-font-color0) !important;
+  display: flex;
 }
 
-.jp-showHiddenCellsButton:hover {
+.jp-Notebook.jp-mod-showHiddenCellsButton .jp-showHiddenCellsButton:hover {
   background-color: var(--jp-border-color2) !important;
 }
+
+.jp-showHiddenCellsButton {
+  display: none;
+}
+
+/*-----------------------------------------------------------------------------
+| Printing
+|----------------------------------------------------------------------------*/
+
+/*
+Using block instead of flex to allow the use of the break-inside CSS property for
+cell outputs.
+*/
+
+@media print {
+  .jp-Cell-inputWrapper,
+  .jp-Cell-outputWrapper {
+    display: block;
+  }
+
+  .jp-MarkdownOutput {
+    display: table-cell;
+  }
+}
diff --git a/packages/cells/test/inputarea.spec.ts b/packages/cells/test/inputarea.spec.ts
index 7da107fab3f8..0c5e60c2224e 100644
--- a/packages/cells/test/inputarea.spec.ts
+++ b/packages/cells/test/inputarea.spec.ts
@@ -7,57 +7,83 @@ import { CodeEditorWrapper } from '@jupyterlab/codeeditor';
 
 import { CodeCellModel, InputArea, InputPrompt } from '@jupyterlab/cells';
 
+import { NBTestUtils } from '@jupyterlab/cells/lib/testutils';
+
 const PROMPT_CLASS = 'jp-InputArea-prompt';
 
 describe('@jupyterlab/cells', () => {
-  const model = new CodeCellModel({});
+  const contentFactory = new InputArea.ContentFactory({
+    editorFactory: NBTestUtils.editorFactory
+  });
+  const model = new CodeCellModel();
 
   describe('InputArea', () => {
     describe('#constructor()', () => {
       it('should create an input area widget', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         expect(widget).toBeInstanceOf(InputArea);
       });
     });
 
     describe('#model', () => {
       it('should be the model used by the input area', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         expect(widget.model).toBe(model);
       });
     });
 
     describe('#contentFactory', () => {
       it('should be the content factory used by the input area', () => {
-        const widget = new InputArea({ model });
-        expect(widget.contentFactory).toBe(InputArea.defaultContentFactory);
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
+        expect(widget.contentFactory).toBe(contentFactory);
       });
     });
 
     describe('#editorWidget', () => {
       it('should be the editor widget used by the input area', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         expect(widget.editorWidget).toBeInstanceOf(CodeEditorWrapper);
       });
     });
 
     describe('#editor', () => {
       it('should be the code editor used by the cell', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         expect(widget.editor.host).toBe(widget.editorWidget.node);
       });
     });
 
     describe('#promptNode', () => {
       it('should be the prompt node used by the cell', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         expect(widget.promptNode.className).toContain('jp-InputPrompt');
       });
     });
 
     describe('#renderInput()', () => {
       it('should render the widget', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         const rendered = new Widget();
         Widget.attach(widget, document.body);
         widget.renderInput(rendered);
@@ -68,7 +94,10 @@ describe('@jupyterlab/cells', () => {
 
     describe('#showEditor()', () => {
       it('should be called to show the editor', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         const rendered = new Widget();
         Widget.attach(widget, document.body);
         widget.renderInput(rendered);
@@ -80,7 +109,10 @@ describe('@jupyterlab/cells', () => {
 
     describe('#setPrompt()', () => {
       it('should change the value of the input prompt', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         const prompt = widget.node.querySelector(`.${PROMPT_CLASS}`)!;
         expect(prompt.textContent).toHaveLength(0);
         widget.setPrompt('foo');
@@ -90,7 +122,10 @@ describe('@jupyterlab/cells', () => {
 
     describe('#dispose()', () => {
       it('should dispose of the resources used by the widget', () => {
-        const widget = new InputArea({ model });
+        const widget = new InputArea({
+          contentFactory,
+          model
+        });
         widget.dispose();
         expect(widget.isDisposed).toBe(true);
         widget.dispose();
@@ -101,41 +136,31 @@ describe('@jupyterlab/cells', () => {
     describe('.ContentFactory', () => {
       describe('#constructor()', () => {
         it('should create a new content factory', () => {
-          const factory = new InputArea.ContentFactory();
+          const factory = new InputArea.ContentFactory({
+            editorFactory: NBTestUtils.editorFactory
+          });
           expect(factory).toBeInstanceOf(InputArea.ContentFactory);
         });
       });
 
       describe('#editorFactory', () => {
         it('should be the code editor factory being used', () => {
-          const factory = new InputArea.ContentFactory();
-          expect(factory.editorFactory).toBe(InputArea.defaultEditorFactory);
+          const factory = new InputArea.ContentFactory({
+            editorFactory: NBTestUtils.editorFactory
+          });
+          expect(factory.editorFactory).toBe(NBTestUtils.editorFactory);
         });
       });
 
       describe('#createInputPrompt()', () => {
         it('should create an input prompt', () => {
-          const factory = new InputArea.ContentFactory();
+          const factory = new InputArea.ContentFactory({
+            editorFactory: NBTestUtils.editorFactory
+          });
           expect(factory.createInputPrompt()).toBeInstanceOf(InputPrompt);
         });
       });
     });
-
-    describe('.defaultContentFactory', () => {
-      it('should be an instance of the content factory', () => {
-        expect(InputArea.defaultContentFactory).toBeInstanceOf(
-          InputArea.ContentFactory
-        );
-      });
-    });
-
-    describe('.defaultEditorFactory', () => {
-      it('should be an editor factory', () => {
-        const factory = InputArea.defaultEditorFactory;
-        const host = document.createElement('div');
-        expect(factory({ host, model }).host).toBe(host);
-      });
-    });
   });
 
   describe('InputPrompt', () => {
diff --git a/packages/cells/test/model.spec.ts b/packages/cells/test/model.spec.ts
index a8c92f01eff7..2ef2c69a5be9 100644
--- a/packages/cells/test/model.spec.ts
+++ b/packages/cells/test/model.spec.ts
@@ -1,24 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { toArray } from '@lumino/algorithm';
-
-import { IChangedArgs } from '@jupyterlab/coreutils';
-
+import {
+  createStandaloneCell,
+  ISharedCodeCell,
+  YCodeCell,
+  YMarkdownCell,
+  YRawCell
+} from '@jupyter/ydoc';
 import {
   CellModel,
   CodeCellModel,
   MarkdownCellModel,
   RawCellModel
 } from '@jupyterlab/cells';
-
+import { IChangedArgs } from '@jupyterlab/coreutils';
 import * as nbformat from '@jupyterlab/nbformat';
-
 import { OutputAreaModel } from '@jupyterlab/outputarea';
-
-import { NBTestUtils } from '@jupyterlab/testutils';
+import { DEFAULT_OUTPUTS } from '@jupyterlab/rendermime/lib/testutils';
 import { JSONObject } from '@lumino/coreutils';
-import { YCodeCell } from '@jupyterlab/shared-models';
 
 class TestModel extends CellModel {
   get type(): 'raw' {
@@ -30,64 +30,60 @@ describe('cells/model', () => {
   describe('CellModel', () => {
     describe('#constructor()', () => {
       it('should create a cell model', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         expect(model).toBeInstanceOf(CellModel);
       });
 
       it('should accept a base cell argument', () => {
-        const cell: nbformat.IRawCell = {
+        const sharedModel = createStandaloneCell({
           cell_type: 'raw',
           source: 'foo',
           metadata: { trusted: false }
-        };
-        const model = new CellModel({ cell });
+        }) as YRawCell;
+        const model = new TestModel({ sharedModel });
         expect(model).toBeInstanceOf(CellModel);
-        expect(model.value.text).toBe(cell.source);
+        expect(model.sharedModel.getSource()).toBe('foo');
       });
 
       it('should accept a base cell argument with a multiline source', () => {
-        const cell: nbformat.IRawCell = {
+        const sharedModel = createStandaloneCell({
           cell_type: 'raw',
           source: ['foo\n', 'bar\n', 'baz'],
           metadata: { trusted: false },
           id: 'cell_id'
-        };
-        const model = new CellModel({ cell });
+        }) as YRawCell;
+        const model = new TestModel({ sharedModel });
         expect(model).toBeInstanceOf(CellModel);
-        expect(model.value.text).toBe((cell.source as string[]).join(''));
+        expect(model.sharedModel.getSource()).toBe('foo\n\nbar\n\nbaz');
       });
 
-      it('should use the id argument', () => {
-        const cell: nbformat.IRawCell = {
+      it('should use the cell id if an id is supplied', () => {
+        const sharedModel = createStandaloneCell({
           cell_type: 'raw',
           source: ['foo\n', 'bar\n', 'baz'],
           metadata: { trusted: false },
           id: 'cell_id'
-        };
-        const model = new CellModel({ cell, id: 'my_id' });
+        }) as YRawCell;
+        const model = new TestModel({ sharedModel, id: 'my_id' });
         expect(model).toBeInstanceOf(CellModel);
-        expect(model.id).toBe('my_id');
+        expect(model.id).toBe('cell_id');
       });
 
-      it('should use the cell id if an id is not supplied', () => {
-        const cell: nbformat.IRawCell = {
-          cell_type: 'raw',
-          source: ['foo\n', 'bar\n', 'baz'],
-          metadata: { trusted: false },
-          id: 'cell_id'
-        };
-        const model = new CellModel({ cell });
+      it('should use the id if an cell is not supplied', () => {
+        const model = new TestModel({ id: 'cell_id' });
         expect(model).toBeInstanceOf(CellModel);
         expect(model.id).toBe('cell_id');
       });
 
       it('should generate an id if an id or cell id is not supplied', () => {
-        const cell = {
+        const sharedModel = createStandaloneCell({
           cell_type: 'raw',
           source: ['foo\n', 'bar\n', 'baz'],
           metadata: { trusted: false }
-        };
-        const model = new CellModel({ cell });
+        }) as YRawCell;
+        const model = new TestModel({ sharedModel });
         expect(model).toBeInstanceOf(CellModel);
         expect(model.id.length).toBeGreaterThan(0);
       });
@@ -95,23 +91,26 @@ describe('cells/model', () => {
 
     describe('#contentChanged', () => {
       it('should signal when model content has changed', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         let called = false;
         model.contentChanged.connect(() => {
           called = true;
         });
         expect(called).toBe(false);
-        model.value.text = 'foo';
+        model.sharedModel.setSource('foo');
         expect(called).toBe(true);
       });
     });
 
     describe('#stateChanged', () => {
       it('should signal when model state has changed', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = false;
         const listener = (sender: any, args: IChangedArgs<any>) => {
           if (args.name == 'executionCount') {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(args.newValue).toBe(1);
             called = true;
           }
@@ -122,10 +121,10 @@ describe('cells/model', () => {
       });
 
       it('should not signal when model state has not changed', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = 0;
-        model.stateChanged.connect((model, args) => {
-          if (args.name == 'executionCount') {
+        model.sharedModel.changed.connect((model, change) => {
+          if (change.executionCountChange) {
             called++;
           }
         });
@@ -139,17 +138,19 @@ describe('cells/model', () => {
 
     describe('#trusted', () => {
       it('should be the trusted state of the cell', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         expect(model.trusted).toBe(false);
         model.trusted = true;
         expect(model.trusted).toBe(true);
-        const other = new CodeCellModel({ cell: model.toJSON() });
+        const other = new CodeCellModel({
+          trusted: true
+        });
         expect(other.trusted).toBe(true);
       });
 
       it('should update the trusted state of the output models', () => {
-        const model = new CodeCellModel({});
-        model.outputs.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        const model = new CodeCellModel();
+        model.outputs.add(DEFAULT_OUTPUTS[0]);
         expect(model.outputs.get(0).trusted).toBe(false);
         model.trusted = true;
         expect(model.outputs.get(0).trusted).toBe(true);
@@ -158,53 +159,59 @@ describe('cells/model', () => {
 
     describe('#metadataChanged', () => {
       it('should signal when model metadata has changed', () => {
-        const model = new TestModel({});
+        const model = new CodeCellModel();
         const listener = (sender: any, args: any) => {
           value = args.newValue;
         };
         let value = '';
-        model.metadata.changed.connect(listener);
+        model.metadataChanged.connect(listener);
         expect(Object.keys(value)).toHaveLength(0);
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(value).toBe('bar');
       });
 
       it('should not signal when model metadata has not changed', () => {
-        const model = new TestModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' })
+        });
         let called = 0;
-        model.metadata.changed.connect(() => {
+        model.metadataChanged.connect(() => {
           called++;
         });
         expect(called).toBe(0);
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(called).toBe(1);
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(called).toBe(1);
       });
     });
 
     describe('#source', () => {
       it('should default to an empty string', () => {
-        const model = new CellModel({});
-        expect(model.value.text).toHaveLength(0);
+        const model = new CodeCellModel();
+        expect(model.sharedModel.getSource()).toHaveLength(0);
       });
 
       it('should be settable', () => {
-        const model = new CellModel({});
-        expect(model.value.text).toHaveLength(0);
-        model.value.text = 'foo';
-        expect(model.value.text).toBe('foo');
+        const model = new CodeCellModel();
+        expect(model.sharedModel.getSource()).toHaveLength(0);
+        model.sharedModel.setSource('foo');
+        expect(model.sharedModel.getSource()).toBe('foo');
       });
     });
 
     describe('#isDisposed', () => {
       it('should be false by default', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         expect(model.isDisposed).toBe(false);
       });
 
       it('should be true after model is disposed', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         model.dispose();
         expect(model.isDisposed).toBe(true);
       });
@@ -212,13 +219,17 @@ describe('cells/model', () => {
 
     describe('#dispose()', () => {
       it('should dispose of the resources held by the model', () => {
-        const model = new TestModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' })
+        });
         model.dispose();
         expect(model.isDisposed).toBe(true);
       });
 
       it('should be safe to call multiple times', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         model.dispose();
         model.dispose();
         expect(model.isDisposed).toBe(true);
@@ -228,23 +239,29 @@ describe('cells/model', () => {
     describe('#toJSON()', () => {
       it('should return a base cell encapsulation of the model value', () => {
         const cell: nbformat.IRawCell = {
+          id: '42',
           cell_type: 'raw',
           source: 'foo',
           metadata: { trusted: false }
         };
-        const model = new TestModel({ cell });
+        const model = new TestModel({
+          sharedModel: createStandaloneCell(cell)
+        });
         expect(model.toJSON()).not.toBe(cell);
         expect(model.toJSON()).toEqual(cell);
       });
 
       it('should always return a string source', () => {
         const cell: nbformat.IRawCell = {
+          id: '42',
           cell_type: 'raw',
           source: ['foo\n', 'bar\n', 'baz'],
           metadata: { trusted: false }
         };
-        const model = new TestModel({ cell });
-        cell.source = (cell.source as string[]).join('');
+        const model = new TestModel({
+          sharedModel: createStandaloneCell(cell)
+        });
+        cell.source = (cell.source as string[]).join('\n');
         expect(model.toJSON()).not.toBe(cell);
         expect(model.toJSON()).toEqual(cell);
       });
@@ -252,26 +269,32 @@ describe('cells/model', () => {
 
     describe('#metadata', () => {
       it('should handle a metadata for the cell', () => {
-        const model = new CellModel({});
-        expect(model.metadata.get('foo')).toBeUndefined();
-        model.metadata.set('foo', 1);
-        expect(model.metadata.get('foo')).toBe(1);
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        expect(model.getMetadata('foo')).toBeUndefined();
+        model.setMetadata('foo', 1);
+        expect(model.getMetadata('foo')).toBe(1);
       });
 
       it('should get a list of user metadata keys', () => {
-        const model = new CellModel({});
-        expect(toArray(model.metadata.keys())).toHaveLength(0);
-        model.metadata.set('foo', 1);
-        expect(model.metadata.keys()).toEqual(['foo']);
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        expect(Array.from(Object.keys(model.metadata))).toHaveLength(0);
+        model.setMetadata('foo', 1);
+        expect(Object.keys(model.metadata)).toEqual(['foo']);
       });
 
       it('should trigger changed signal', () => {
-        const model = new CellModel({});
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
         let called = false;
-        model.metadata.changed.connect(() => {
+        model.metadataChanged.connect(() => {
           called = true;
         });
-        model.metadata.set('foo', 1);
+        model.setMetadata('foo', 1);
         expect(called).toBe(true);
       });
     });
@@ -280,7 +303,7 @@ describe('cells/model', () => {
   describe('RawCellModel', () => {
     describe('#type', () => {
       it('should be set with type "raw"', () => {
-        const model = new RawCellModel({});
+        const model = new RawCellModel();
         expect(model.type).toBe('raw');
       });
     });
@@ -292,7 +315,9 @@ describe('cells/model', () => {
           metadata: {},
           id: 'cell_id'
         };
-        const model = new RawCellModel({ cell });
+        const model = new RawCellModel({
+          sharedModel: createStandaloneCell(cell) as YRawCell
+        });
         const serialized = model.toJSON();
         expect(serialized).not.toBe(cell);
         expect(serialized).toEqual(cell);
@@ -303,7 +328,7 @@ describe('cells/model', () => {
   describe('MarkdownCellModel', () => {
     describe('#type', () => {
       it('should be set with type "markdown"', () => {
-        const model = new MarkdownCellModel({});
+        const model = new MarkdownCellModel();
         expect(model.type).toBe('markdown');
       });
     });
@@ -315,7 +340,9 @@ describe('cells/model', () => {
           metadata: {},
           id: 'cell_id'
         };
-        const model = new MarkdownCellModel({ cell });
+        const model = new MarkdownCellModel({
+          sharedModel: createStandaloneCell(cell) as YMarkdownCell
+        });
         const serialized = model.toJSON();
         expect(serialized).not.toBe(cell);
         expect(serialized).toEqual(cell);
@@ -326,12 +353,12 @@ describe('cells/model', () => {
   describe('CodeCellModel', () => {
     describe('#constructor()', () => {
       it('should create a code cell model', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         expect(model).toBeInstanceOf(CodeCellModel);
       });
 
       it('should accept a code cell argument', () => {
-        const cell: nbformat.ICodeCell = {
+        const sharedModel = createStandaloneCell({
           cell_type: 'code',
           execution_count: 1,
           outputs: [
@@ -343,10 +370,10 @@ describe('cells/model', () => {
           ],
           source: 'foo',
           metadata: { trusted: false }
-        };
-        const model = new CodeCellModel({ cell });
+        }) as YCodeCell;
+        const model = new CodeCellModel({ sharedModel });
         expect(model).toBeInstanceOf(CodeCellModel);
-        expect(model.value.text).toBe(cell.source);
+        expect(model.sharedModel.getSource()).toBe('foo');
       });
 
       it('should connect the outputs changes to content change signal', () => {
@@ -355,7 +382,7 @@ describe('cells/model', () => {
           data: { 'text/plain': 'foo' },
           metadata: {}
         } as nbformat.IDisplayData;
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = false;
         model.contentChanged.connect(() => {
           called = true;
@@ -371,76 +398,74 @@ describe('cells/model', () => {
 
         // Setting `collapsed` works
         model = new CodeCellModel({
-          cell: {
+          sharedModel: createStandaloneCell({
             cell_type: 'code',
             source: '',
             metadata: { collapsed: true }
-          }
+          }) as YCodeCell
         });
-        expect(model.metadata.get('collapsed')).toBe(true);
-        jupyter = model.metadata.get('jupyter') as JSONObject;
+        expect(model.getMetadata('collapsed')).toBe(true);
+        jupyter = model.getMetadata('jupyter') as JSONObject;
         expect(jupyter.outputs_hidden).toBe(true);
 
         // Setting `jupyter.outputs_hidden` works
         model = new CodeCellModel({
-          cell: {
+          sharedModel: createStandaloneCell({
             cell_type: 'code',
             source: '',
             metadata: { jupyter: { outputs_hidden: true } }
-          }
+          }) as YCodeCell
         });
-        expect(model.metadata.get('collapsed')).toBe(true);
-        jupyter = model.metadata.get('jupyter') as JSONObject;
+        expect(model.getMetadata('collapsed')).toBe(true);
+        jupyter = model.getMetadata('jupyter') as JSONObject;
         expect(jupyter.outputs_hidden).toBe(true);
 
         // `collapsed` takes precedence
         model = new CodeCellModel({
-          cell: {
+          sharedModel: createStandaloneCell({
             cell_type: 'code',
             source: '',
             metadata: { collapsed: false, jupyter: { outputs_hidden: true } }
-          }
+          }) as YCodeCell
         });
-        expect(model.metadata.get('collapsed')).toBe(false);
-        jupyter = model.metadata.get('jupyter') as JSONObject;
+        expect(model.getMetadata('collapsed')).toBe(false);
+        jupyter = model.getMetadata('jupyter') as JSONObject;
         expect(jupyter.outputs_hidden).toBe(false);
       });
     });
 
     describe('#type', () => {
       it('should be set with type "code"', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         expect(model.type).toBe('code');
       });
     });
 
     describe('#executionCount', () => {
       it('should show the execution count of the cell', () => {
-        const cell: nbformat.ICodeCell = {
+        const sharedModel = createStandaloneCell({
           cell_type: 'code',
           execution_count: 1,
           outputs: [],
           source: 'foo',
           metadata: { trusted: false }
-        };
-        const model = new CodeCellModel({ cell });
+        }) as YCodeCell;
+        const model = new CodeCellModel({ sharedModel });
         expect(model.executionCount).toBe(1);
       });
 
       it('should be settable', () => {
-        const model = new CodeCellModel({});
-        expect(model.executionCount).toBeNull();
+        const model = new CodeCellModel();
         model.executionCount = 1;
         expect(model.executionCount).toBe(1);
       });
 
       it('should emit a state change signal when set', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = false;
         model.stateChanged.connect(() => {
           called = true;
         });
-        expect(model.executionCount).toBeNull();
         expect(called).toBe(false);
         model.executionCount = 1;
         expect(model.executionCount).toBe(1);
@@ -448,14 +473,13 @@ describe('cells/model', () => {
       });
 
       it('should not signal when state has not changed', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = 0;
-        model.stateChanged.connect((model, args) => {
-          if (args.name == 'executionCount') {
+        model.sharedModel.changed.connect((model, args) => {
+          if (args.executionCountChange) {
             called++;
           }
         });
-        expect(model.executionCount).toBeNull();
         expect(called).toBe(0);
         model.executionCount = 1;
         expect(model.executionCount).toBe(1);
@@ -464,14 +488,14 @@ describe('cells/model', () => {
       });
 
       it('should set dirty flag and signal', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         let called = 0;
         model.stateChanged.connect((model, args) => {
           if (args.name == 'isDirty') {
             called++;
           }
         });
-        expect(model.executionCount).toBeNull();
+        expect(model.executionCount).toBe(null);
         expect(model.isDirty).toBe(false);
         expect(called).toBe(0);
 
@@ -479,7 +503,7 @@ describe('cells/model', () => {
         expect(model.isDirty).toBe(false);
         expect(called).toBe(0);
 
-        model.value.text = 'foo';
+        model.sharedModel.setSource('foo');
         expect(model.isDirty).toBe(true);
         expect(called).toBe(1);
 
@@ -491,14 +515,14 @@ describe('cells/model', () => {
 
     describe('#outputs', () => {
       it('should be an output area model', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         expect(model.outputs).toBeInstanceOf(OutputAreaModel);
       });
     });
 
     describe('#dispose()', () => {
       it('should dispose of the resources held by the model', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         expect(model.outputs).toBeInstanceOf(OutputAreaModel);
         model.dispose();
         expect(model.isDisposed).toBe(true);
@@ -506,7 +530,7 @@ describe('cells/model', () => {
       });
 
       it('should be safe to call multiple times', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         model.dispose();
         model.dispose();
         expect(model.isDisposed).toBe(true);
@@ -532,7 +556,9 @@ describe('cells/model', () => {
           metadata: { trusted: false },
           id: 'cell_id'
         };
-        const model = new CodeCellModel({ cell });
+        const model = new CodeCellModel({
+          sharedModel: createStandaloneCell(cell) as ISharedCodeCell
+        });
         const serialized = model.toJSON();
         expect(serialized).not.toBe(cell);
         expect(serialized).toEqual(cell);
@@ -541,7 +567,7 @@ describe('cells/model', () => {
       });
     });
 
-    describe('#onModelDBOutputsChange()', () => {
+    describe('#onOutputsChange()', () => {
       const output0 = {
         output_type: 'display_data',
         data: {
@@ -575,7 +601,7 @@ describe('cells/model', () => {
         id: 'cell_id'
       };
       it('should add new items correctly', () => {
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         const sharedModel = model.sharedModel as YCodeCell;
         expect(sharedModel.ymodel.get('outputs').length).toBe(0);
 
@@ -586,7 +612,7 @@ describe('cells/model', () => {
           oldIndex: -1,
           newIndex: 0
         } as any;
-        model['onModelDBOutputsChange'](null as any, newEvent0);
+        model['onOutputsChange'](null as any, newEvent0);
         expect(sharedModel.ymodel.get('outputs').length).toBe(1);
         expect(sharedModel.ymodel.get('outputs').get(0)).toEqual(output0);
 
@@ -597,13 +623,15 @@ describe('cells/model', () => {
           oldIndex: -1,
           newIndex: 1
         } as any;
-        model['onModelDBOutputsChange'](null as any, newEvent1);
+        model['onOutputsChange'](null as any, newEvent1);
         expect(sharedModel.ymodel.get('outputs').length).toBe(2);
         expect(sharedModel.ymodel.get('outputs').get(1)).toEqual(output1);
       });
 
       it('should set new items correctly', () => {
-        const model = new CodeCellModel({ cell });
+        const model = new CodeCellModel({
+          sharedModel: createStandaloneCell(cell) as ISharedCodeCell
+        });
         const sharedModel = model.sharedModel as YCodeCell;
         expect(sharedModel.ymodel.get('outputs').length).toBe(2);
 
@@ -614,7 +642,7 @@ describe('cells/model', () => {
           oldIndex: 0,
           newIndex: 0
         } as any;
-        model['onModelDBOutputsChange'](null as any, newEvent0);
+        model['onOutputsChange'](null as any, newEvent0);
         expect(sharedModel.ymodel.get('outputs').length).toBe(2);
         expect(sharedModel.ymodel.get('outputs').get(0)).toEqual(output2);
         const newEvent1 = {
@@ -624,16 +652,17 @@ describe('cells/model', () => {
           oldIndex: 1,
           newIndex: 1
         } as any;
-        model['onModelDBOutputsChange'](null as any, newEvent1);
+        model['onOutputsChange'](null as any, newEvent1);
         expect(sharedModel.ymodel.get('outputs').length).toBe(2);
         expect(sharedModel.ymodel.get('outputs').get(1)).toEqual(output2);
       });
 
       it('should remove items correctly', () => {
-        const model = new CodeCellModel({ cell });
+        const model = new CodeCellModel({
+          sharedModel: createStandaloneCell(cell) as ISharedCodeCell
+        });
         const sharedModel = model.sharedModel as YCodeCell;
-        expect(sharedModel.ymodel.get('outputs').length).toBe(2);
-
+        expect(sharedModel.getOutputs().length).toBe(2);
         const newEvent0 = {
           type: 'remove',
           newValues: [],
@@ -641,75 +670,75 @@ describe('cells/model', () => {
           oldIndex: 0,
           newIndex: 0
         } as any;
-        model['onModelDBOutputsChange'](null as any, newEvent0);
+        model['onOutputsChange'](null as any, newEvent0);
         expect(sharedModel.ymodel.get('outputs').length).toBe(0);
       });
     });
 
     describe('.metadata', () => {
       it('should sync collapsed and jupyter.outputs_hidden metadata when changed', () => {
-        const metadata = new CodeCellModel({}).metadata;
+        const cell = new CodeCellModel();
 
-        expect(metadata.get('collapsed')).toBeUndefined();
-        expect(metadata.get('jupyter')).toBeUndefined();
+        expect(cell.getMetadata('collapsed')).toBeUndefined();
+        expect(cell.getMetadata('jupyter')).toBeUndefined();
 
         // Setting collapsed sets jupyter.outputs_hidden
-        metadata.set('collapsed', true);
-        expect(metadata.get('collapsed')).toBe(true);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('collapsed', true);
+        expect(cell.getMetadata('collapsed')).toBe(true);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: true
         });
 
-        metadata.set('collapsed', false);
-        expect(metadata.get('collapsed')).toBe(false);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('collapsed', false);
+        expect(cell.getMetadata('collapsed')).toBe(false);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: false
         });
 
-        metadata.delete('collapsed');
-        expect(metadata.get('collapsed')).toBeUndefined();
-        expect(metadata.get('jupyter')).toBeUndefined();
+        cell.deleteMetadata('collapsed');
+        expect(cell.getMetadata('collapsed')).toBeUndefined();
+        expect(cell.getMetadata('jupyter')).toBeUndefined();
 
         // Setting jupyter.outputs_hidden sets collapsed
-        metadata.set('jupyter', { outputs_hidden: true });
-        expect(metadata.get('collapsed')).toBe(true);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('jupyter', { outputs_hidden: true });
+        expect(cell.getMetadata('collapsed')).toBe(true);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: true
         });
 
-        metadata.set('jupyter', { outputs_hidden: false });
-        expect(metadata.get('collapsed')).toBe(false);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('jupyter', { outputs_hidden: false });
+        expect(cell.getMetadata('collapsed')).toBe(false);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: false
         });
 
-        metadata.delete('jupyter');
-        expect(metadata.get('collapsed')).toBeUndefined();
-        expect(metadata.get('jupyter')).toBeUndefined();
+        cell.deleteMetadata('jupyter');
+        expect(cell.getMetadata('collapsed')).toBeUndefined();
+        expect(cell.getMetadata('jupyter')).toBeUndefined();
 
         // Deleting jupyter.outputs_hidden preserves other jupyter fields
-        metadata.set('jupyter', { outputs_hidden: true, other: true });
-        expect(metadata.get('collapsed')).toBe(true);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('jupyter', { outputs_hidden: true, other: true });
+        expect(cell.getMetadata('collapsed')).toBe(true);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: true,
           other: true
         });
-        metadata.set('jupyter', { other: true });
-        expect(metadata.get('collapsed')).toBeUndefined();
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('jupyter', { other: true });
+        expect(cell.getMetadata('collapsed')).toBeUndefined();
+        expect(cell.getMetadata('jupyter')).toEqual({
           other: true
         });
 
         // Deleting collapsed preserves other jupyter fields
-        metadata.set('jupyter', { outputs_hidden: true, other: true });
-        expect(metadata.get('collapsed')).toBe(true);
-        expect(metadata.get('jupyter')).toEqual({
+        cell.setMetadata('jupyter', { outputs_hidden: true, other: true });
+        expect(cell.getMetadata('collapsed')).toBe(true);
+        expect(cell.getMetadata('jupyter')).toEqual({
           outputs_hidden: true,
           other: true
         });
-        metadata.delete('collapsed');
-        expect(metadata.get('collapsed')).toBeUndefined();
-        expect(metadata.get('jupyter')).toEqual({
+        cell.deleteMetadata('collapsed');
+        expect(cell.getMetadata('collapsed')).toBeUndefined();
+        expect(cell.getMetadata('jupyter')).toEqual({
           other: true
         });
       });
diff --git a/packages/cells/test/widget.spec.ts b/packages/cells/test/widget.spec.ts
index 432a2c038a96..3aab72411e9e 100644
--- a/packages/cells/test/widget.spec.ts
+++ b/packages/cells/test/widget.spec.ts
@@ -1,14 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Message, MessageLoop } from '@lumino/messaging';
-
-import { Widget } from '@lumino/widgets';
-
+import { createStandaloneCell, YCodeCell } from '@jupyter/ydoc';
 import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
-
-import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
-
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import {
   Cell,
   CellFooter,
@@ -23,26 +18,38 @@ import {
   RawCell,
   RawCellModel
 } from '@jupyterlab/cells';
-
+import { NBTestUtils } from '@jupyterlab/cells/lib/testutils';
+import { CodeEditorWrapper } from '@jupyterlab/codeeditor';
 import { OutputArea, OutputPrompt } from '@jupyterlab/outputarea';
-
+import { defaultRenderMime } from '@jupyterlab/rendermime/lib/testutils';
+import { IExecuteReplyMsg } from '@jupyterlab/services/lib/kernel/messages';
 import {
-  createSessionContext,
   framePromise,
   JupyterServer,
-  NBTestUtils
-} from '@jupyterlab/testutils';
+  signalToPromise
+} from '@jupyterlab/testing';
+import { Message, MessageLoop } from '@lumino/messaging';
+import { Widget } from '@lumino/widgets';
 
 const RENDERED_CLASS = 'jp-mod-rendered';
-const rendermime = NBTestUtils.defaultRenderMime();
+const rendermime = defaultRenderMime();
+
+class TestModel extends CellModel {
+  get type(): 'raw' {
+    return 'raw';
+  }
+}
 
 class LogBaseCell extends Cell {
   methods: string[] = [];
 
   constructor() {
     super({
-      model: new CellModel({}),
-      contentFactory: NBTestUtils.createBaseCellFactory()
+      contentFactory: NBTestUtils.createBaseCellFactory(),
+      model: new TestModel({
+        sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+      }),
+      placeholder: false
     });
   }
 
@@ -67,14 +74,15 @@ class LogCodeCell extends CodeCell {
 
   constructor() {
     super({
-      model: new CodeCellModel({}),
       contentFactory: NBTestUtils.createCodeCellFactory(),
-      rendermime
+      model: new CodeCellModel(),
+      rendermime,
+      placeholder: false
     });
   }
 
   protected onUpdateRequest(msg: Message): void {
-    super.onAfterAttach(msg);
+    super.onUpdateRequest(msg);
     this.methods.push('onUpdateRequest');
   }
 
@@ -88,31 +96,25 @@ class LogMarkdownCell extends MarkdownCell {
   methods: string[] = [];
 
   protected onUpdateRequest(msg: Message): void {
-    super.onAfterAttach(msg);
+    super.onUpdateRequest(msg);
     this.methods.push('onUpdateRequest');
   }
 }
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('cells/widget', () => {
   const editorFactory = NBTestUtils.editorFactory;
 
   describe('Cell', () => {
-    const contentFactory = NBTestUtils.createBaseCellFactory();
-    const model = new CellModel({});
+    const model = new TestModel({
+      sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+    });
 
     describe('#constructor()', () => {
       it('should create a base cell widget', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
+        }).initializeState();
         expect(widget).toBeInstanceOf(Cell);
       });
 
@@ -123,67 +125,89 @@ describe('cells/widget', () => {
       });
 
       it('should accept a custom editorConfig', () => {
-        const editorConfig: Partial<CodeEditor.IConfig> = {
-          insertSpaces: false,
+        const editorConfig: Record<string, any> = {
           matchBrackets: false
         };
         const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
           editorConfig,
           model,
-          contentFactory
+          placeholder: false
         }).initializeState();
-        expect(widget.editor.getOption('insertSpaces')).toEqual(false);
-        expect(widget.editor.getOption('matchBrackets')).toEqual(false);
-        expect(widget.editor.getOption('lineNumbers')).toEqual(
-          CodeEditor.defaultConfig.lineNumbers
-        );
+        expect(widget.editor!.getOption('matchBrackets')).toEqual(false);
       });
     });
 
     describe('#model', () => {
       it('should be the model used by the widget', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.model).toEqual(model);
       });
     });
 
     describe('#editorWidget', () => {
       it('should be a code editor widget', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.editorWidget).toBeInstanceOf(CodeEditorWrapper);
       });
     });
 
     describe('#editor', () => {
       it('should be a cell editor', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
-        expect(widget.editor.uuid).toBeTruthy();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
+        expect(widget.editor!.uuid).toBeTruthy();
       });
     });
 
     describe('#inputArea', () => {
       it('should be the input area for the cell', () => {
-        const widget = new Cell({ model }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.inputArea).toBeInstanceOf(InputArea);
       });
     });
 
     describe('#readOnly', () => {
       it('should be a boolean', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(typeof widget.readOnly).toEqual('boolean');
       });
 
       it('should default to false', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.readOnly).toEqual(false);
       });
 
       it('should be settable', () => {
         const widget = new Cell({
-          model,
-          contentFactory
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
         }).initializeState();
         widget.readOnly = true;
         expect(widget.readOnly).toEqual(true);
@@ -198,11 +222,12 @@ describe('cells/widget', () => {
       });
 
       it('should reflect model metadata', () => {
-        model.metadata.set('editable', false);
+        model.setMetadata('editable', false);
 
         const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
           model,
-          contentFactory
+          placeholder: false
         }).initializeState();
         expect(widget.readOnly).toEqual(true);
       });
@@ -219,15 +244,20 @@ describe('cells/widget', () => {
 
     describe('#loadEditableState()', () => {
       it('should load the editable state from the model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
+        }).initializeState();
         expect(widget.readOnly).toEqual(false);
 
-        model.metadata.set('editable', false);
+        model.setMetadata('editable', false);
         widget.loadEditableState();
         expect(widget.readOnly).toEqual(true);
 
-        model.metadata.set('editable', true);
+        model.setMetadata('editable', true);
         widget.loadEditableState();
         expect(widget.readOnly).toEqual(false);
       });
@@ -235,64 +265,82 @@ describe('cells/widget', () => {
 
     describe('#saveEditableState()', () => {
       it('should save the editable state to the model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.readOnly).toEqual(false);
 
         widget.readOnly = true;
         widget.saveEditableState();
-        expect(model.metadata.get('editable')).toEqual(false);
+        expect(model.getMetadata('editable')).toEqual(false);
 
         widget.readOnly = false;
         widget.saveEditableState();
         // Default values are not saved explicitly
-        expect(model.metadata.get('editable')).toEqual(undefined);
+        expect(model.getMetadata('editable')).toEqual(undefined);
       });
     });
 
     describe('#syncEditable', () => {
       it('should control automatic syncing of editable state with model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.syncEditable).toEqual(false);
         expect(widget.readOnly).toEqual(false);
 
         // Not synced if setting widget attribute
         widget.readOnly = true;
-        expect(model.metadata.get('editable')).toEqual(undefined);
+        expect(model.getMetadata('editable')).toEqual(undefined);
 
         // Not synced if setting metadata attribute
-        model.metadata.set('editable', true);
+        model.setMetadata('editable', true);
         expect(widget.readOnly).toEqual(true);
 
         widget.syncEditable = true;
 
         // Setting sync does an initial sync from model to view. This also sets
         // the metadata to undefined if it is the default value.
-        expect(model.metadata.get('editable')).toEqual(undefined);
+        expect(model.getMetadata('editable')).toEqual(undefined);
         expect(widget.readOnly).toEqual(false);
 
         // Synced if setting widget attribute
         widget.readOnly = true;
-        expect(model.metadata.get('editable')).toEqual(false);
+        expect(model.getMetadata('editable')).toEqual(false);
 
         // Synced if setting metadata attribute
-        model.metadata.set('editable', true);
+        model.setMetadata('editable', true);
         expect(widget.readOnly).toEqual(false);
       });
     });
 
     describe('#loadCollapseState()', () => {
       it('should load the input collapse state from the model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.inputHidden).toEqual(false);
 
-        model.metadata.set('jupyter', { source_hidden: true });
+        model.setMetadata('jupyter', { source_hidden: true });
         widget.loadCollapseState();
         expect(widget.inputHidden).toEqual(true);
 
-        model.metadata.set('jupyter', { source_hidden: false });
+        model.setMetadata('jupyter', { source_hidden: false });
         widget.loadCollapseState();
         expect(widget.inputHidden).toEqual(false);
       });
@@ -300,53 +348,65 @@ describe('cells/widget', () => {
 
     describe('#saveCollapseState()', () => {
       it('should save the collapse state to the model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.inputHidden).toEqual(false);
 
         widget.inputHidden = true;
         widget.saveCollapseState();
-        expect(model.metadata.get('jupyter')).toEqual({
+        expect(model.getMetadata('jupyter')).toEqual({
           source_hidden: true
         });
 
         widget.inputHidden = false;
         widget.saveCollapseState();
         // Default values are not saved explicitly
-        expect(model.metadata.get('jupyter')).toEqual(undefined);
+        expect(model.getMetadata('jupyter')).toEqual(undefined);
       });
     });
 
     describe('#syncCollapse', () => {
       it('should control automatic syncing of collapse state with model', () => {
-        const model = new CellModel({});
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const model = new TestModel({
+          sharedModel: createStandaloneCell({ cell_type: 'code' }) as YCodeCell
+        });
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model,
+          placeholder: false
+        }).initializeState();
         expect(widget.syncCollapse).toEqual(false);
         expect(widget.inputHidden).toEqual(false);
 
         // Not synced if setting widget attribute
         widget.inputHidden = true;
-        expect(model.metadata.get('jupyter')).toEqual(undefined);
+        expect(model.getMetadata('jupyter')).toEqual(undefined);
 
         // Not synced if setting metadata attribute
-        model.metadata.set('jupyter', { source_hidden: false });
+        model.setMetadata('jupyter', { source_hidden: false });
         expect(widget.inputHidden).toEqual(true);
 
         widget.syncCollapse = true;
 
         // Setting sync does an initial sync from model to view. This also sets
         // the metadata to undefined if it is the default value.
-        expect(model.metadata.get('jupyter')).toEqual(undefined);
+        expect(model.getMetadata('jupyter')).toEqual(undefined);
         expect(widget.inputHidden).toEqual(false);
 
         // Synced if setting widget attribute
         widget.inputHidden = true;
-        expect(model.metadata.get('jupyter')).toEqual({
+        expect(model.getMetadata('jupyter')).toEqual({
           source_hidden: true
         });
 
         // Synced if setting metadata attribute
-        model.metadata.set('jupyter', {});
+        model.setMetadata('jupyter', {});
         expect(widget.inputHidden).toEqual(false);
       });
     });
@@ -359,14 +419,17 @@ describe('cells/widget', () => {
         await framePromise();
         expect(widget.methods).toContain('onActivateRequest');
         await framePromise();
-        expect(widget.editor.hasFocus()).toEqual(true);
+        expect(widget.editor!.hasFocus()).toEqual(true);
         widget.dispose();
       });
     });
 
     describe('#setPrompt()', () => {
       it('should not throw an error (full test in input area)', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
+        }).initializeState();
         expect(() => {
           widget.setPrompt('');
         }).not.toThrow();
@@ -381,13 +444,19 @@ describe('cells/widget', () => {
 
     describe('#dispose()', () => {
       it('should dispose of the resources held by the widget', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
+        }).initializeState();
         widget.dispose();
         expect(widget.isDisposed).toEqual(true);
       });
 
       it('should be safe to call multiple times', () => {
-        const widget = new Cell({ model, contentFactory }).initializeState();
+        const widget = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model
+        }).initializeState();
         widget.dispose();
         widget.dispose();
         expect(widget.isDisposed).toEqual(true);
@@ -413,12 +482,6 @@ describe('cells/widget', () => {
       });
     });
 
-    describe('#.defaultContentFactory', () => {
-      it('should be a contentFactory', () => {
-        expect(Cell.defaultContentFactory).toBeInstanceOf(Cell.ContentFactory);
-      });
-    });
-
     describe('.ContentFactory', () => {
       describe('#constructor', () => {
         it('should create a ContentFactory', () => {
@@ -436,28 +499,28 @@ describe('cells/widget', () => {
 
       describe('#createCellHeader()', () => {
         it('should create a new cell header', () => {
-          const factory = new Cell.ContentFactory();
+          const factory = new Cell.ContentFactory({ editorFactory });
           expect(factory.createCellHeader()).toBeInstanceOf(CellHeader);
         });
       });
 
       describe('#createCellFooter()', () => {
         it('should create a new cell footer', () => {
-          const factory = new Cell.ContentFactory();
+          const factory = new Cell.ContentFactory({ editorFactory });
           expect(factory.createCellFooter()).toBeInstanceOf(CellFooter);
         });
       });
 
       describe('#createOutputPrompt()', () => {
         it('should create a new output prompt', () => {
-          const factory = new Cell.ContentFactory();
+          const factory = new Cell.ContentFactory({ editorFactory });
           expect(factory.createOutputPrompt()).toBeInstanceOf(OutputPrompt);
         });
       });
 
       describe('#createInputPrompt()', () => {
         it('should create a new input prompt', () => {
-          const factory = new Cell.ContentFactory();
+          const factory = new Cell.ContentFactory({ editorFactory });
           expect(factory.createInputPrompt()).toBeInstanceOf(InputPrompt);
         });
       });
@@ -466,7 +529,7 @@ describe('cells/widget', () => {
 
   describe('CodeCell', () => {
     const contentFactory = NBTestUtils.createCodeCellFactory();
-    const model = new CodeCellModel({});
+    const model = new CodeCellModel();
 
     describe('#constructor()', () => {
       it('should create a code cell widget', () => {
@@ -485,7 +548,11 @@ describe('cells/widget', () => {
 
     describe('#outputArea', () => {
       it('should be the output area used by the cell', () => {
-        const widget = new CodeCell({ model, rendermime });
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputArea).toBeInstanceOf(OutputArea);
       });
@@ -493,25 +560,41 @@ describe('cells/widget', () => {
 
     describe('#outputCollapsed', () => {
       it('should initialize from the model', () => {
-        const collapsedModel = new CodeCellModel({});
-        let widget = new CodeCell({ model: collapsedModel, rendermime });
+        const collapsedModel = new CodeCellModel();
+        let widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model: collapsedModel,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputHidden).toEqual(false);
 
-        collapsedModel.metadata.set('collapsed', true);
-        widget = new CodeCell({ model: collapsedModel, rendermime });
+        collapsedModel.setMetadata('collapsed', true);
+        widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model: collapsedModel,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputHidden).toEqual(true);
 
-        collapsedModel.metadata.delete('collapsed');
-        collapsedModel.metadata.set('jupyter', { outputs_hidden: true });
-        widget = new CodeCell({ model: collapsedModel, rendermime });
+        collapsedModel.deleteMetadata('collapsed');
+        collapsedModel.setMetadata('jupyter', { outputs_hidden: true });
+        widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model: collapsedModel,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputHidden).toEqual(true);
       });
 
       it('should be the view state of the output being collapsed', () => {
-        const widget = new CodeCell({ model, rendermime });
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputHidden).toEqual(false);
         widget.outputHidden = true;
@@ -521,23 +604,39 @@ describe('cells/widget', () => {
 
     describe('#outputsScrolled', () => {
       it('should initialize from the model', () => {
-        const model = new CodeCellModel({});
-        let widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        let widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(false);
 
-        model.metadata.set('scrolled', false);
-        widget = new CodeCell({ model, rendermime });
+        model.setMetadata('scrolled', false);
+        widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(false);
 
-        model.metadata.set('scrolled', 'auto');
-        widget = new CodeCell({ model, rendermime });
+        model.setMetadata('scrolled', 'auto');
+        widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(false);
 
-        model.metadata.set('scrolled', true);
-        widget = new CodeCell({ model, rendermime });
+        model.setMetadata('scrolled', true);
+        widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(true);
       });
@@ -545,16 +644,20 @@ describe('cells/widget', () => {
 
     describe('#loadScrolledState()', () => {
       it('should load the output scrolled state from the model', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(false);
 
-        model.metadata.set('scrolled', true);
+        model.setMetadata('scrolled', true);
         widget.loadScrolledState();
         expect(widget.outputsScrolled).toEqual(true);
 
-        model.metadata.set('scrolled', false);
+        model.setMetadata('scrolled', false);
         widget.loadScrolledState();
         expect(widget.outputsScrolled).toEqual(false);
       });
@@ -562,68 +665,80 @@ describe('cells/widget', () => {
 
     describe('#saveScrolledState()', () => {
       it('should save the collapse state to the model', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputsScrolled).toEqual(false);
 
         widget.outputsScrolled = true;
         widget.saveScrolledState();
-        expect(model.metadata.get('scrolled')).toEqual(true);
+        expect(model.getMetadata('scrolled')).toEqual(true);
 
         widget.outputsScrolled = false;
         widget.saveScrolledState();
         // Default values are not saved explicitly
-        expect(model.metadata.get('scrolled')).toEqual(undefined);
+        expect(model.getMetadata('scrolled')).toEqual(undefined);
       });
     });
 
     describe('#syncScrolled', () => {
       it('should control automatic syncing of scrolled state with model', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.syncScrolled).toEqual(false);
         expect(widget.outputsScrolled).toEqual(false);
 
         // Not synced if setting widget attribute
         widget.outputsScrolled = true;
-        expect(model.metadata.get('scrolled')).toEqual(undefined);
+        expect(model.getMetadata('scrolled')).toEqual(undefined);
 
         // Not synced if setting metadata attribute
-        model.metadata.set('scrolled', false);
+        model.setMetadata('scrolled', false);
         expect(widget.outputsScrolled).toEqual(true);
 
         widget.syncScrolled = true;
 
         // Setting sync does an initial sync from model to view. This also sets
         // the metadata to undefined if it is the default value.
-        expect(model.metadata.get('scrolled')).toEqual(undefined);
+        expect(model.getMetadata('scrolled')).toEqual(undefined);
         expect(widget.outputsScrolled).toEqual(false);
 
         // Synced if setting widget attribute
         widget.outputsScrolled = true;
-        expect(model.metadata.get('scrolled')).toEqual(true);
+        expect(model.getMetadata('scrolled')).toEqual(true);
 
         // Synced if setting metadata attribute
-        model.metadata.set('scrolled', false);
+        model.setMetadata('scrolled', false);
         expect(widget.outputsScrolled).toEqual(false);
       });
     });
 
     describe('#loadCollapseState()', () => {
       it('should load the output collapse state from the model', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         widget.loadCollapseState();
         expect(widget.outputHidden).toEqual(false);
 
-        model.metadata.set('collapsed', true);
+        model.setMetadata('collapsed', true);
         widget.loadCollapseState();
         expect(widget.outputHidden).toEqual(true);
 
-        model.metadata.set('collapsed', false);
+        model.setMetadata('collapsed', false);
         widget.loadCollapseState();
         expect(widget.outputHidden).toEqual(false);
       });
@@ -631,62 +746,70 @@ describe('cells/widget', () => {
 
     describe('#saveCollapseState()', () => {
       it('should save the collapse state to the model `collapsed` metadata', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.outputHidden).toEqual(false);
 
         widget.outputHidden = true;
         widget.saveCollapseState();
-        expect(model.metadata.get('collapsed')).toEqual(true);
+        expect(model.getMetadata('collapsed')).toEqual(true);
 
         // Default values are not saved explicitly
         widget.outputHidden = false;
         widget.saveCollapseState();
-        expect(model.metadata.get('collapsed')).toEqual(undefined);
+        expect(model.getMetadata('collapsed')).toEqual(undefined);
 
         // Default values are explicitly deleted
-        model.metadata.set('collapsed', false);
+        model.setMetadata('collapsed', false);
         widget.outputHidden = false;
         widget.saveCollapseState();
-        expect(model.metadata.get('collapsed')).toEqual(undefined);
+        expect(model.getMetadata('collapsed')).toEqual(undefined);
       });
     });
 
     describe('#syncCollapse', () => {
       it('should control automatic syncing of collapse state with model', () => {
-        const model = new CodeCellModel({});
-        const widget = new CodeCell({ model, rendermime });
+        const model = new CodeCellModel();
+        const widget = new CodeCell({
+          contentFactory: NBTestUtils.createCodeCellFactory(),
+          model,
+          rendermime
+        });
         widget.initializeState();
         expect(widget.syncCollapse).toEqual(false);
         expect(widget.outputHidden).toEqual(false);
 
         // Not synced if setting widget attribute
         widget.outputHidden = true;
-        expect(model.metadata.get('collapsed')).toEqual(undefined);
+        expect(model.getMetadata('collapsed')).toEqual(undefined);
 
         // Not synced if setting metadata attribute
-        model.metadata.set('collapsed', false);
+        model.setMetadata('collapsed', false);
         expect(widget.outputHidden).toEqual(true);
 
         widget.syncCollapse = true;
 
         // Setting sync does an initial sync from model to view.
-        expect(model.metadata.get('collapsed')).toEqual(undefined);
+        expect(model.getMetadata('collapsed')).toEqual(undefined);
         expect(widget.outputHidden).toEqual(false);
 
         // Synced if setting widget attribute
         widget.outputHidden = true;
-        expect(model.metadata.get('collapsed')).toEqual(true);
+        expect(model.getMetadata('collapsed')).toEqual(true);
 
         // Synced if setting metadata attribute
-        model.metadata.set('collapsed', false);
+        model.setMetadata('collapsed', false);
         expect(widget.outputHidden).toEqual(false);
 
         // Synced if deleting collapsed metadata attribute
         widget.outputHidden = true;
-        expect(model.metadata.get('collapsed')).toEqual(true);
-        model.metadata.delete('collapsed');
+        expect(model.getMetadata('collapsed')).toEqual(true);
+        model.deleteMetadata('collapsed');
         expect(widget.outputHidden).toEqual(false);
       });
     });
@@ -722,7 +845,7 @@ describe('cells/widget', () => {
         const method = 'onMetadataChanged';
         const widget = new LogCodeCell().initializeState();
         expect(widget.methods).not.toContain(method);
-        widget.model.metadata.set('foo', 1);
+        widget.model.setMetadata('foo', 1);
         expect(widget.methods).toContain(method);
       });
     });
@@ -730,6 +853,16 @@ describe('cells/widget', () => {
     describe('.execute()', () => {
       let sessionContext: ISessionContext;
 
+      const server = new JupyterServer();
+
+      beforeAll(async () => {
+        await server.start();
+      }, 30000);
+
+      afterAll(async () => {
+        await server.shutdown();
+      });
+
       beforeEach(async () => {
         sessionContext = await createSessionContext();
         await (sessionContext as SessionContext).initialize();
@@ -741,16 +874,28 @@ describe('cells/widget', () => {
       });
 
       it('should fulfill a promise if there is no code to execute', async () => {
-        const widget = new CodeCell({ model, rendermime, contentFactory });
+        const widget = new CodeCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
-        await CodeCell.execute(widget, sessionContext);
+        await expect(
+          CodeCell.execute(widget, sessionContext)
+        ).resolves.not.toThrow();
       });
 
       it('should fulfill a promise if there is code to execute', async () => {
-        const widget = new CodeCell({ model, rendermime, contentFactory });
+        const widget = new CodeCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         let originalCount: number;
-        widget.model.value.text = 'foo';
+        widget.model.sharedModel.setSource('foo');
         originalCount = widget.model.executionCount!;
         await CodeCell.execute(widget, sessionContext);
         const executionCount = widget.model.executionCount;
@@ -766,62 +911,88 @@ describe('cells/widget', () => {
       ];
 
       it('should not save timing info by default', async () => {
-        const widget = new CodeCell({ model, rendermime, contentFactory });
+        const widget = new CodeCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         await CodeCell.execute(widget, sessionContext);
-        expect(widget.model.metadata.get('execution')).toBeUndefined();
+        expect(widget.model.getMetadata('execution')).toBeUndefined();
       });
       it('should save timing info if requested', async () => {
-        const widget = new CodeCell({ model, rendermime, contentFactory });
+        const widget = new CodeCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         await CodeCell.execute(widget, sessionContext, { recordTiming: true });
-        expect(widget.model.metadata.get('execution')).toBeDefined();
-        const timingInfo = widget.model.metadata.get('execution') as any;
+        expect(widget.model.getMetadata('execution')).toBeDefined();
+        const timingInfo = widget.model.getMetadata('execution') as any;
         for (const key of TIMING_KEYS) {
           expect(timingInfo[key]).toBeDefined();
         }
       });
 
       it('should set the cell prompt properly while executing', async () => {
-        const widget = new CodeCell({ model, rendermime, contentFactory });
+        const widget = new CodeCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
-        widget.model.value.text = 'foo';
+        widget.model.sharedModel.setSource('foo');
         const future1 = CodeCell.execute(widget, sessionContext);
-        expect(widget.promptNode.textContent).toEqual('[*]:');
+        expect(widget.promptNode!.textContent).toEqual('[*]:');
         const future2 = CodeCell.execute(widget, sessionContext);
-        expect(widget.promptNode.textContent).toEqual('[*]:');
+        expect(widget.promptNode!.textContent).toEqual('[*]:');
         await expect(future1).rejects.toThrow('Canceled');
-        expect(widget.promptNode.textContent).toEqual('[*]:');
+        expect(widget.promptNode!.textContent).toEqual('[*]:');
         const msg = await future2;
         expect(msg).not.toBeUndefined();
 
-        // The `if` is a Typescript type guard so that msg.content works below.
-        if (msg) {
-          expect(widget.promptNode.textContent).toEqual(
-            `[${msg.content.execution_count}]:`
-          );
-        }
+        expect(widget.promptNode!.textContent).toEqual(
+          `[${(msg as IExecuteReplyMsg).content.execution_count}]:`
+        );
       });
     });
   });
 
   describe('MarkdownCell', () => {
     const contentFactory = NBTestUtils.createBaseCellFactory();
-    const model = new MarkdownCellModel({});
-
+    const model = new MarkdownCellModel();
     describe('#constructor()', () => {
       it('should create a markdown cell widget', () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         expect(widget).toBeInstanceOf(MarkdownCell);
       });
 
       it('should accept a custom contentFactory', () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         expect(widget).toBeInstanceOf(MarkdownCell);
       });
 
       it('should set the default mimetype to text/x-ipythongfm', () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         expect(widget.model.mimeType).toEqual('text/x-ipythongfm');
       });
@@ -829,7 +1000,12 @@ describe('cells/widget', () => {
 
     describe('#rendered', () => {
       it('should default to true', async () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         Widget.attach(widget, document.body);
         expect(widget.rendered).toEqual(true);
@@ -838,10 +1014,16 @@ describe('cells/widget', () => {
       });
 
       it('should unrender the widget', async () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         Widget.attach(widget, document.body);
         widget.rendered = false;
+        await signalToPromise(widget.renderedChanged);
         await framePromise();
         expect(widget.node.classList.contains(RENDERED_CLASS)).toEqual(false);
         widget.dispose();
@@ -850,14 +1032,24 @@ describe('cells/widget', () => {
 
     describe('#dispose()', () => {
       it('should dispose of the resources held by the widget', () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         widget.dispose();
         expect(widget.isDisposed).toEqual(true);
       });
 
       it('should be safe to call multiple times', () => {
-        const widget = new MarkdownCell({ model, rendermime, contentFactory });
+        const widget = new MarkdownCell({
+          model,
+          rendermime,
+          contentFactory,
+          placeholder: false
+        });
         widget.initializeState();
         widget.dispose();
         widget.dispose();
@@ -870,7 +1062,8 @@ describe('cells/widget', () => {
         const widget = new LogMarkdownCell({
           model,
           rendermime,
-          contentFactory
+          contentFactory,
+          placeholder: false
         }).initializeState();
         expect(widget.methods).not.toContain('onUpdateRequest');
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
@@ -884,8 +1077,12 @@ describe('cells/widget', () => {
 
     describe('#constructor()', () => {
       it('should create a raw cell widget', () => {
-        const model = new RawCellModel({});
-        const widget = new RawCell({ model, contentFactory }).initializeState();
+        const model = new RawCellModel();
+        const widget = new RawCell({
+          model,
+          contentFactory,
+          placeholder: false
+        }).initializeState();
         expect(widget).toBeInstanceOf(RawCell);
       });
     });
diff --git a/packages/cells/tsconfig.json b/packages/cells/tsconfig.json
index 7ecd5c4a2465..a668a076759f 100644
--- a/packages/cells/tsconfig.json
+++ b/packages/cells/tsconfig.json
@@ -21,6 +21,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../documentsearch"
+    },
     {
       "path": "../filebrowser"
     },
@@ -40,7 +43,10 @@
       "path": "../services"
     },
     {
-      "path": "../shared-models"
+      "path": "../toc"
+    },
+    {
+      "path": "../translation"
     },
     {
       "path": "../ui-components"
diff --git a/packages/cells/tsconfig.test.json b/packages/cells/tsconfig.test.json
index 92151ac14579..71299f9a9f16 100644
--- a/packages/cells/tsconfig.test.json
+++ b/packages/cells/tsconfig.test.json
@@ -17,6 +17,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../documentsearch"
+    },
     {
       "path": "../filebrowser"
     },
@@ -36,55 +39,19 @@
       "path": "../services"
     },
     {
-      "path": "../shared-models"
-    },
-    {
-      "path": "../ui-components"
-    },
-    {
-      "path": "."
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../attachments"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../coreutils"
+      "path": "../toc"
     },
     {
-      "path": "../filebrowser"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
+      "path": "../translation"
     },
     {
-      "path": "../outputarea"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
+      "path": "../ui-components"
     },
     {
-      "path": "../shared-models"
+      "path": "."
     },
     {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/celltags-extension/README.md b/packages/celltags-extension/README.md
index 7a2c75e70730..502e35219836 100644
--- a/packages/celltags-extension/README.md
+++ b/packages/celltags-extension/README.md
@@ -1,4 +1,3 @@
 # @jupyterlab/celltags-extension
 
-A JupyterLab extension which provides an entry point for
-[@jupyterlab/celltags](../celltags).
+A JupyterLab extension which provides a form renderer for NotebookTools common tool.
diff --git a/packages/celltags-extension/package.json b/packages/celltags-extension/package.json
index d3725c087601..04987687d097 100644
--- a/packages/celltags-extension/package.json
+++ b/packages/celltags-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/celltags-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "An extension for manipulating tags in cell metadata",
   "keywords": [
     "jupyter",
@@ -30,7 +30,9 @@
   "files": [
     "lib/*.{d.ts,js,js.map}",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}",
+    "schema/*.json"
   ],
   "scripts": {
     "build": "tsc",
@@ -38,20 +40,24 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/celltags": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@rjsf/utils": "^5.1.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
   },
   "jupyterlab": {
-    "extension": true
+    "extension": true,
+    "schemaDir": "schema"
   },
   "styleModule": "style/index.js"
 }
diff --git a/packages/celltags-extension/schema/plugin.json b/packages/celltags-extension/schema/plugin.json
new file mode 100644
index 000000000000..09acd9c2e766
--- /dev/null
+++ b/packages/celltags-extension/schema/plugin.json
@@ -0,0 +1,33 @@
+{
+  "type": "object",
+  "title": "Common tools",
+  "description": "Setting for the common tools",
+  "jupyter.lab.metadataforms": [
+    {
+      "id": "commonToolsSection",
+      "label": "Common tools",
+      "metadataSchema": {
+        "type": "object",
+        "properties": {
+          "/tags": {
+            "title": "Cell tag",
+            "type": "array",
+            "default": [],
+            "items": {
+              "type": "string"
+            }
+          }
+        }
+      },
+      "uiSchema": {
+        "ui:order": ["_CELL-TOOL", "/tags", "*"]
+      },
+      "metadataOptions": {
+        "/tags": {
+          "customRenderer": "@jupyterlab/celltags-extension:plugin.renderer"
+        }
+      }
+    }
+  ],
+  "additionalProperties": false
+}
diff --git a/packages/celltags-extension/src/celltag.tsx b/packages/celltags-extension/src/celltag.tsx
new file mode 100644
index 000000000000..22ae661b90e0
--- /dev/null
+++ b/packages/celltags-extension/src/celltag.tsx
@@ -0,0 +1,243 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+import { FieldProps } from '@rjsf/utils';
+import { INotebookTracker } from '@jupyterlab/notebook';
+import { addIcon, checkIcon, LabIcon } from '@jupyterlab/ui-components';
+import { reduce } from '@lumino/algorithm';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+
+/**
+ * The class name added to the cell-tags field.
+ */
+const CELL_TAGS_WIDGET_CLASS = 'jp-CellTags';
+/**
+ * The class name added to each tag element.
+ */
+const CELL_TAGS_ELEMENT_CLASS = 'jp-CellTags-Tag';
+/**
+ * The class name added to each applied tag element.
+ */
+const CELL_TAGS_ELEMENT_APPLIED_CLASS = 'jp-CellTags-Applied';
+/**
+ * The class name added to each unapplied tag element.
+ */
+const CELL_TAGS_ELEMENT_UNAPPLIED_CLASS = 'jp-CellTags-Unapplied';
+/**
+ * The class name added to the tag holder.
+ */
+const CELL_TAGS_HOLDER_CLASS = 'jp-CellTags-Holder';
+/**
+ * The class name added to the add-tag input.
+ */
+const CELL_TAGS_ADD_CLASS = 'jp-CellTags-Add';
+/**
+ * The class name added to an empty input.
+ */
+const CELL_TAGS_EMPTY_CLASS = 'jp-CellTags-Empty';
+
+export class CellTagField {
+  constructor(tracker: INotebookTracker, translator?: ITranslator) {
+    this._tracker = tracker;
+    this._translator = translator || nullTranslator;
+    this._trans = this._translator.load('jupyterlab');
+    this._editing = false;
+  }
+
+  addTag(props: FieldProps, tag: string) {
+    const data = props.formData;
+    if (tag && !data.includes(tag)) {
+      data.push(tag);
+      props.formContext.updateMetadata({ [props.name]: data }, true);
+    }
+  }
+
+  /**
+   * Pull from cell metadata all the tags used in the notebook and update the
+   * stored tag list.
+   */
+  pullTags(): string[] {
+    const notebook = this._tracker?.currentWidget;
+    const cells = notebook?.model?.cells;
+    if (cells === undefined) {
+      return [];
+    }
+    const allTags = reduce(
+      cells,
+      (allTags: string[], cell) => {
+        const tags: string[] = (cell.getMetadata('tags') as string[]) ?? [];
+        return [...allTags, ...tags];
+      },
+      []
+    );
+    return [...new Set(allTags)].filter(tag => tag !== '');
+  }
+
+  private _emptyAddTag(target: HTMLInputElement) {
+    target.value = '';
+    target.style.width = '';
+    target.classList.add(CELL_TAGS_EMPTY_CLASS);
+  }
+
+  private _onAddTagKeyDown(
+    props: FieldProps,
+    event: React.KeyboardEvent<HTMLInputElement>
+  ) {
+    const input = event.target as HTMLInputElement;
+
+    if (event.ctrlKey) return;
+
+    if (event.key === 'Enter') {
+      this.addTag(props, input.value);
+    } else if (event.key === 'Escape') {
+      this._emptyAddTag(input);
+    }
+  }
+
+  private _onAddTagFocus(event: React.FocusEvent<HTMLInputElement>) {
+    if (!this._editing) {
+      (event.target as HTMLInputElement).blur();
+    }
+  }
+
+  private _onAddTagBlur(input: HTMLInputElement) {
+    if (this._editing) {
+      this._editing = false;
+      this._emptyAddTag(input);
+    }
+  }
+
+  private _onChange(event: React.ChangeEvent<HTMLInputElement>) {
+    if (!event.target.value) {
+      this._emptyAddTag(event.target);
+    } else {
+      event.target.classList.remove(CELL_TAGS_EMPTY_CLASS);
+      const tmp = document.createElement('span');
+      tmp.className = CELL_TAGS_ADD_CLASS;
+      tmp.textContent = event.target.value;
+      // set width to the pixel length of the text
+      document.body.appendChild(tmp);
+      event.target.style.setProperty(
+        'width',
+        `calc(${
+          tmp.getBoundingClientRect().width
+        }px + var(--jp-add-tag-extra-width))`
+      );
+      document.body.removeChild(tmp);
+    }
+  }
+
+  private _onAddTagClick(
+    props: FieldProps,
+    event: React.MouseEvent<HTMLElement>
+  ) {
+    const elem = (event.target as HTMLElement).closest('div');
+    const input = elem?.childNodes[0] as HTMLInputElement;
+    if (!this._editing) {
+      this._editing = true;
+      input.value = '';
+      input.focus();
+    } else if (event.target !== input) {
+      this.addTag(props, input.value);
+    }
+    event.preventDefault();
+  }
+
+  private _onTagClick(props: FieldProps, tag: string) {
+    const data = props.formData;
+    if (data.includes(tag)) {
+      data.splice(data.indexOf(tag), 1);
+    } else {
+      data.push(tag);
+    }
+
+    props.formContext.updateMetadata({ [props.name]: data }, true);
+  }
+
+  render(props: FieldProps): JSX.Element {
+    const allTags: string[] = this.pullTags();
+
+    return (
+      <div className={CELL_TAGS_WIDGET_CLASS}>
+        <div className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+          Cell Tags
+        </div>
+        {allTags &&
+          allTags.map((tag: string, i: number) => (
+            <div
+              key={i}
+              className={`${CELL_TAGS_ELEMENT_CLASS} ${
+                props.formData.includes(tag)
+                  ? CELL_TAGS_ELEMENT_APPLIED_CLASS
+                  : CELL_TAGS_ELEMENT_UNAPPLIED_CLASS
+              }`}
+              onClick={() => this._onTagClick(props, tag)}
+            >
+              <div className={CELL_TAGS_HOLDER_CLASS}>
+                <span>{tag}</span>
+                {props.formData.includes(tag) && (
+                  <LabIcon.resolveReact
+                    icon={checkIcon}
+                    tag="span"
+                    elementPosition="center"
+                    height="18px"
+                    width="18px"
+                    marginLeft="5px"
+                    marginRight="-3px"
+                  />
+                )}
+              </div>
+            </div>
+          ))}
+        <div
+          className={`${CELL_TAGS_ELEMENT_CLASS} ${CELL_TAGS_ELEMENT_UNAPPLIED_CLASS}`}
+        >
+          <div
+            className={CELL_TAGS_HOLDER_CLASS}
+            onMouseDown={(e: React.MouseEvent<HTMLElement>) =>
+              this._onAddTagClick(props, e)
+            }
+          >
+            <input
+              className={`${CELL_TAGS_ADD_CLASS} ${CELL_TAGS_EMPTY_CLASS}`}
+              type="text"
+              placeholder={this._trans.__('Add Tag')}
+              onKeyDown={(e: React.KeyboardEvent<HTMLInputElement>) =>
+                this._onAddTagKeyDown(props, e)
+              }
+              onFocus={(e: React.FocusEvent<HTMLInputElement>) =>
+                this._onAddTagFocus(e)
+              }
+              onBlur={(e: React.FocusEvent<HTMLInputElement>) =>
+                this._onAddTagBlur(e.target)
+              }
+              onChange={(e: React.ChangeEvent<HTMLInputElement>) => {
+                this._onChange(e);
+              }}
+            />
+            <LabIcon.resolveReact
+              icon={addIcon}
+              tag="span"
+              height="18px"
+              width="18px"
+              marginLeft="5px"
+              marginRight="-3px"
+            />
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  private _tracker: INotebookTracker;
+  private _translator: ITranslator;
+  private _trans: TranslationBundle;
+  private _editing: boolean;
+}
diff --git a/packages/celltags-extension/src/index.ts b/packages/celltags-extension/src/index.ts
index 7a46c4b1348f..56dca38ed7a6 100644
--- a/packages/celltags-extension/src/index.ts
+++ b/packages/celltags-extension/src/index.ts
@@ -5,33 +5,47 @@
  * @module celltags-extension
  */
 
+import type { FieldProps } from '@rjsf/utils';
 import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 
-import { INotebookTools, INotebookTracker } from '@jupyterlab/notebook';
+import { INotebookTracker } from '@jupyterlab/notebook';
 
-import { TagTool } from '@jupyterlab/celltags';
-
-import { ITranslator } from '@jupyterlab/translation';
+import { CellTagField } from './celltag';
+import {
+  IFormRenderer,
+  IFormRendererRegistry
+} from '@jupyterlab/ui-components';
 
 /**
- * Initialization data for the celltags extension.
+ * Registering cell tag field.
  */
-const celltags: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/celltags',
+const customCellTag: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/celltags-extension:plugin',
+  description: 'Adds the cell tags editor.',
   autoStart: true,
-  requires: [INotebookTools, INotebookTracker, ITranslator],
+  requires: [INotebookTracker],
+  optional: [IFormRendererRegistry],
   activate: (
     app: JupyterFrontEnd,
-    tools: INotebookTools,
     tracker: INotebookTracker,
-    translator: ITranslator
+    formRegistry?: IFormRendererRegistry
   ) => {
-    const tool = new TagTool(tracker, app, translator);
-    tools.addItem({ tool: tool, rank: 1.6 });
+    // Register the custom field
+    if (formRegistry) {
+      const component: IFormRenderer = {
+        fieldRenderer: (props: FieldProps) => {
+          return new CellTagField(tracker).render(props);
+        }
+      };
+      formRegistry.addRenderer(
+        '@jupyterlab/celltags-extension:plugin.renderer',
+        component
+      );
+    }
   }
 };
 
-export default celltags;
+export default [customCellTag];
diff --git a/packages/celltags/style/base.css b/packages/celltags-extension/style/base.css
similarity index 63%
rename from packages/celltags/style/base.css
rename to packages/celltags-extension/style/base.css
index 0cba14e38594..25cfcbe197e6 100644
--- a/packages/celltags/style/base.css
+++ b/packages/celltags-extension/style/base.css
@@ -1,9 +1,18 @@
-.tag {
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+:root {
+  --jp-add-tag-extra-width: 8px;
+}
+
+.jp-CellTags-Tag {
   height: 20px;
   border-radius: 10px;
   margin-right: 5px;
   margin-bottom: 10px;
-  padding: 0px 8px;
+  padding: 0 8px;
   font-size: var(--jp-ui-font-size1);
   display: inline-flex;
   justify-content: center;
@@ -19,15 +28,15 @@
   user-select: none;
 }
 
-.unapplied-tag {
+.jp-CellTags-Unapplied {
   background-color: var(--jp-layout-color2);
 }
 
-.applied-tag {
+.jp-CellTags-Applied {
   background-color: var(--jp-layout-color3);
 }
 
-.add-tag {
+.jp-CellTags-Add {
   white-space: nowrap;
   overflow: hidden;
   border: none;
@@ -38,25 +47,12 @@
   background: var(--jp-layout-color2);
 }
 
-.tag-holder {
+.jp-CellTags-Holder {
   display: flex;
   justify-content: center;
   align-items: center;
 }
 
-.tag-label {
-  flex: 0 0 auto;
-  font-size: var(--jp-ui-font-size1);
-  color: var(--jp-ui-font-color1);
-  padding: 0px 12px;
-}
-
-/* Need a more specific selector to override another rule on .jp-NotebookTools children. */
-.jp-NotebookTools .tag-label {
-  margin: 0px;
-}
-
-/* Need a more specific selector to override another rule .jp-NotebookTools children. */
-.jp-NotebookTools div.jp-TagTool {
-  margin-top: 4px;
+.jp-CellTags-Empty {
+  width: 4em;
 }
diff --git a/packages/celltags-extension/style/index.css b/packages/celltags-extension/style/index.css
index 7761b8fe68b8..2686721edf32 100644
--- a/packages/celltags-extension/style/index.css
+++ b/packages/celltags-extension/style/index.css
@@ -4,6 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
-@import url('~@jupyterlab/celltags/style/index.css');
+@import url('./base.css');
diff --git a/packages/celltags-extension/style/index.js b/packages/celltags-extension/style/index.js
index 92f74a6af8d0..64c2185d7d74 100644
--- a/packages/celltags-extension/style/index.js
+++ b/packages/celltags-extension/style/index.js
@@ -4,6 +4,8 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/notebook/style/index.js';
-import '@jupyterlab/celltags/style/index.js';
+
+import './base.css';
diff --git a/packages/celltags-extension/tsconfig.json b/packages/celltags-extension/tsconfig.json
index b17cd80dff90..be02fd26f7fb 100644
--- a/packages/celltags-extension/tsconfig.json
+++ b/packages/celltags-extension/tsconfig.json
@@ -9,14 +9,14 @@
     {
       "path": "../application"
     },
-    {
-      "path": "../celltags"
-    },
     {
       "path": "../notebook"
     },
     {
       "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
     }
   ],
   "extends": "../../tsconfigbase"
diff --git a/packages/celltags/README.md b/packages/celltags/README.md
deleted file mode 100644
index 52550c724dd1..000000000000
--- a/packages/celltags/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# @jupyterlab/celltags
-
-A JupyterLab package which provides an interface for viewing and manipulating
-descriptive tags in notebook cell metadata.
diff --git a/packages/celltags/package.json b/packages/celltags/package.json
deleted file mode 100644
index 0ebaf0b15905..000000000000
--- a/packages/celltags/package.json
+++ /dev/null
@@ -1,60 +0,0 @@
-{
-  "name": "@jupyterlab/celltags",
-  "version": "3.6.6",
-  "description": "An extension for manipulating tags in cell metadata",
-  "keywords": [
-    "jupyter",
-    "jupyterlab",
-    "jupyterlab-extension"
-  ],
-  "homepage": "https://github.com/jupyterlab/jupyterlab",
-  "bugs": {
-    "url": "https://github.com/jupyterlab/jupyterlab/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/jupyterlab/jupyterlab.git"
-  },
-  "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
-  "sideEffects": [
-    "style/*.css",
-    "style/index.js"
-  ],
-  "main": "lib/index.js",
-  "types": "lib/index.d.ts",
-  "style": "style/index.css",
-  "directories": {
-    "lib": "lib/"
-  },
-  "files": [
-    "lib/*.{d.ts,js,js.map}",
-    "style/*.css",
-    "static/*.svg",
-    "style/index.js"
-  ],
-  "scripts": {
-    "build": "tsc -b",
-    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "watch": "tsc -b --watch"
-  },
-  "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
-  },
-  "devDependencies": {
-    "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "styleModule": "style/index.js"
-}
diff --git a/packages/celltags/src/addwidget.ts b/packages/celltags/src/addwidget.ts
deleted file mode 100644
index 83e5d1ca77bd..000000000000
--- a/packages/celltags/src/addwidget.ts
+++ /dev/null
@@ -1,169 +0,0 @@
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { addIcon } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { TagTool } from './tool';
-
-/**
- * A widget which hosts a cell tags area.
- */
-export class AddWidget extends Widget {
-  /**
-   * Construct a new tag widget.
-   */
-  constructor(translator?: ITranslator) {
-    super();
-    this.translator = translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
-    this.addClass('tag');
-    this.editing = false;
-    this.buildTag();
-  }
-
-  /**
-   * Create input box with icon and attach to this.node.
-   */
-  buildTag() {
-    const text = this.input || document.createElement('input');
-    text.value = this._trans.__('Add Tag');
-    text.contentEditable = 'true';
-    text.className = 'add-tag';
-    text.style.width = '49px';
-    this.input = text;
-    const tag = document.createElement('div');
-    tag.className = 'tag-holder';
-    tag.appendChild(text);
-    const iconContainer = addIcon.element({
-      tag: 'span',
-      elementPosition: 'center',
-      height: '18px',
-      width: '18px',
-      marginLeft: '3px',
-      marginRight: '-5px'
-    });
-    this.addClass('unapplied-tag');
-    tag.appendChild(iconContainer);
-    this.node.appendChild(tag);
-  }
-
-  /**
-   * Handle `after-attach` messages for the widget.
-   */
-  onAfterAttach() {
-    this.node.addEventListener('mousedown', this);
-    this.input.addEventListener('keydown', this);
-    this.input.addEventListener('focus', this);
-    this.input.addEventListener('blur', this);
-  }
-
-  /**
-   * Handle `before-detach` messages for the widget.
-   */
-  onBeforeDetach() {
-    this.node.removeEventListener('mousedown', this);
-    this.input.removeEventListener('keydown', this);
-    this.input.removeEventListener('focus', this);
-    this.input.removeEventListener('blur', this);
-  }
-
-  /**
-   * Handle the DOM events for the widget.
-   *
-   * @param event - The DOM event sent to the widget.
-   *
-   * #### Notes
-   * This method implements the DOM `EventListener` interface and is
-   * called in response to events on the dock panel's node. It should
-   * not be called directly by user code.
-   */
-  handleEvent(event: Event): void {
-    switch (event.type) {
-      case 'mousedown':
-        this._evtMouseDown(event as MouseEvent);
-        break;
-      case 'keydown':
-        this._evtKeyDown(event as KeyboardEvent);
-        break;
-      case 'blur':
-        this._evtBlur();
-        break;
-      case 'focus':
-        this._evtFocus();
-        break;
-      default:
-        break;
-    }
-  }
-
-  /**
-   * Handle the `'mousedown'` event for the input box.
-   *
-   * @param event - The DOM event sent to the widget
-   */
-  private _evtMouseDown(event: MouseEvent) {
-    if (!this.editing) {
-      this.editing = true;
-      this.input.value = '';
-      this.input.focus();
-    } else if (event.target !== this.input) {
-      if (this.input.value !== '') {
-        const value = this.input.value;
-        (this.parent as TagTool).addTag(value);
-        this.input.blur();
-        this._evtBlur();
-      }
-    }
-    event.preventDefault();
-  }
-
-  /**
-   * Handle the `'focus'` event for the input box.
-   */
-  private _evtFocus() {
-    if (!this.editing) {
-      this.input.blur();
-    }
-  }
-
-  /**
-   * Handle the `'keydown'` event for the input box.
-   *
-   * @param event - The DOM event sent to the widget
-   */
-  private _evtKeyDown(event: KeyboardEvent) {
-    const tmp = document.createElement('span');
-    tmp.className = 'add-tag';
-    tmp.innerHTML = this.input.value;
-    // set width to the pixel length of the text
-    document.body.appendChild(tmp);
-    this.input.style.width = tmp.getBoundingClientRect().width + 8 + 'px';
-    document.body.removeChild(tmp);
-    // if they hit Enter, add the tag and reset state
-    if (event.keyCode === 13) {
-      const value = this.input.value;
-      (this.parent as TagTool).addTag(value);
-      this.input.blur();
-      this._evtBlur();
-    }
-  }
-
-  /**
-   * Handle the `'focusout'` event for the input box.
-   */
-  private _evtBlur() {
-    if (this.editing) {
-      this.editing = false;
-      this.input.value = this._trans.__('Add Tag');
-      this.input.style.width = '49px';
-    }
-  }
-
-  public parent: TagTool | null = null;
-  private editing: boolean;
-  private input: HTMLInputElement = document.createElement('input');
-  protected translator: ITranslator;
-  private _trans: TranslationBundle;
-}
diff --git a/packages/celltags/src/tool.ts b/packages/celltags/src/tool.ts
deleted file mode 100644
index 27f04626dac1..000000000000
--- a/packages/celltags/src/tool.ts
+++ /dev/null
@@ -1,270 +0,0 @@
-import { JupyterFrontEnd } from '@jupyterlab/application';
-import { Cell } from '@jupyterlab/cells';
-import { INotebookTracker, NotebookTools } from '@jupyterlab/notebook';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { reduce } from '@lumino/algorithm';
-import { Message } from '@lumino/messaging';
-import { Signal } from '@lumino/signaling';
-import { PanelLayout } from '@lumino/widgets';
-import { AddWidget } from './addwidget';
-import { TagWidget } from './widget';
-
-/**
- * A Tool for tag operations.
- */
-export class TagTool extends NotebookTools.Tool {
-  /**
-   * Construct a new tag Tool.
-   *
-   * @param tracker - The notebook tracker.
-   */
-  constructor(
-    tracker: INotebookTracker,
-    app: JupyterFrontEnd,
-    translator?: ITranslator
-  ) {
-    super();
-    app;
-    this.translator = translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
-    this.tracker = tracker;
-    this.layout = new PanelLayout();
-    this.createTagInput();
-    this.addClass('jp-TagTool');
-  }
-
-  /**
-   * Add an AddWidget input box to the layout.
-   */
-  createTagInput() {
-    const layout = this.layout as PanelLayout;
-    const input = new AddWidget(this.translator);
-    input.id = 'add-tag';
-    layout.insertWidget(0, input);
-  }
-
-  /**
-   * Check whether a tag is applied to the current active cell
-   *
-   * @param name - The name of the tag.
-   *
-   * @returns A boolean representing whether it is applied.
-   */
-  checkApplied(name: string): boolean {
-    const activeCell = this.tracker?.activeCell;
-    if (activeCell) {
-      const tags = activeCell.model.metadata.get('tags') as string[];
-      if (tags) {
-        return tags.includes(name);
-      }
-    }
-    return false;
-  }
-
-  /**
-   * Add a tag to the current active cell.
-   *
-   * @param name - The name of the tag.
-   */
-  addTag(name: string) {
-    const cell = this.tracker?.activeCell;
-    if (cell) {
-      const oldTags = [
-        ...((cell.model.metadata.get('tags') as string[]) ?? [])
-      ];
-      let tagsToAdd = name.split(/[,\s]+/);
-      tagsToAdd = tagsToAdd.filter(tag => tag !== '' && !oldTags.includes(tag));
-      cell.model.metadata.set('tags', oldTags.concat(tagsToAdd));
-      this.refreshTags();
-      this.loadActiveTags();
-    }
-  }
-
-  /**
-   * Remove a tag from the current active cell.
-   *
-   * @param name - The name of the tag.
-   */
-  removeTag(name: string) {
-    const cell = this.tracker?.activeCell;
-    if (cell) {
-      const oldTags = [
-        ...((cell.model.metadata.get('tags') as string[]) ?? [])
-      ];
-      let tags = oldTags.filter(tag => tag !== name);
-      cell.model.metadata.set('tags', tags);
-      if (tags.length === 0) {
-        cell.model.metadata.delete('tags');
-      }
-      this.refreshTags();
-      this.loadActiveTags();
-    }
-  }
-
-  /**
-   * Update each tag widget to represent whether it is applied to the current
-   * active cell.
-   */
-  loadActiveTags() {
-    const layout = this.layout as PanelLayout;
-    for (const widget of layout.widgets) {
-      widget.update();
-    }
-  }
-
-  /**
-   * Pull from cell metadata all the tags used in the notebook and update the
-   * stored tag list.
-   */
-  pullTags() {
-    const notebook = this.tracker?.currentWidget;
-    const cells = notebook?.model?.cells ?? [];
-    const allTags = reduce(
-      cells,
-      (allTags: string[], cell) => {
-        const tags = (cell.metadata.get('tags') as string[]) ?? [];
-        return [...allTags, ...tags];
-      },
-      []
-    );
-    this.tagList = [...new Set(allTags)].filter(tag => tag !== '');
-  }
-
-  /**
-   * Pull the most recent list of tags and update the tag widgets - dispose if
-   * the tag no longer exists, and create new widgets for new tags.
-   */
-  refreshTags() {
-    this.pullTags();
-    const layout = this.layout as PanelLayout;
-    const tagWidgets = layout.widgets.filter(w => w.id !== 'add-tag');
-    tagWidgets.forEach(widget => {
-      if (!this.tagList.includes((widget as TagWidget).name)) {
-        widget.dispose();
-      }
-    });
-    const tagWidgetNames = tagWidgets.map(w => (w as TagWidget).name);
-    this.tagList.forEach(tag => {
-      if (!tagWidgetNames.includes(tag)) {
-        const idx = layout.widgets.length - 1;
-        layout.insertWidget(idx, new TagWidget(tag));
-      }
-    });
-  }
-
-  /**
-   * Validate the 'tags' of cell metadata, ensuring it is a list of strings and
-   * that each string doesn't include spaces.
-   */
-  validateTags(cell: Cell, tags: string[]) {
-    tags = tags.filter(tag => typeof tag === 'string');
-    tags = reduce(
-      tags,
-      (allTags: string[], tag) => {
-        return [...allTags, ...tag.split(/[,\s]+/)];
-      },
-      []
-    );
-    const validTags = [...new Set(tags)].filter(tag => tag !== '');
-    cell.model.metadata.set('tags', validTags);
-    this.refreshTags();
-    this.loadActiveTags();
-  }
-
-  /**
-   * Handle a change to the active cell.
-   */
-  protected onActiveCellChanged(): void {
-    this.loadActiveTags();
-  }
-
-  /**
-   * Get all tags once available.
-   */
-  protected onAfterShow() {
-    this.refreshTags();
-    this.loadActiveTags();
-  }
-
-  /**
-   * Upon attach, add label if it doesn't already exist and listen for changes
-   * from the notebook tracker.
-   */
-  protected onAfterAttach(msg: Message): void {
-    if (!this.label) {
-      const label = document.createElement('label');
-      label.textContent = this._trans.__('Cell Tags');
-      label.className = 'tag-label';
-      this.parent!.node.insertBefore(label, this.node);
-      this.label = true;
-    }
-    this.onCurrentChanged();
-    super.onAfterAttach(msg);
-  }
-
-  /**
-   * Clear signal connections before detaching
-   */
-  protected onBeforeDetach(msg: Message): void {
-    super.onBeforeDetach(msg);
-    Signal.disconnectReceiver(this);
-  }
-
-  /**
-   * Handle a change to active cell metadata.
-   */
-  protected onActiveCellMetadataChanged(): void {
-    const tags = this.tracker.activeCell!.model.metadata.get(
-      'tags'
-    ) as string[];
-    let taglist: string[] = [];
-    if (tags) {
-      if (typeof tags === 'string') {
-        taglist.push(tags);
-      } else {
-        taglist = tags as string[];
-      }
-    }
-    this.validateTags(this.tracker.activeCell!, taglist);
-  }
-
-  /**
-   * Callback on current widget changes
-   */
-  protected onCurrentChanged(): void {
-    Signal.disconnectReceiver(this);
-    this.tracker.currentChanged.connect(this.onCurrentChanged, this);
-    if (this.tracker.currentWidget) {
-      void this.tracker.currentWidget.context.ready.then(() => {
-        this.refresh();
-      });
-      this.tracker.currentWidget.model!.cells.changed.connect(
-        this.refresh,
-        this
-      );
-      this.tracker.currentWidget.content.activeCellChanged.connect(
-        this.refresh,
-        this
-      );
-    }
-    this.refresh();
-  }
-
-  /**
-   * Refresh tags and active status
-   */
-  protected refresh(): void {
-    this.refreshTags();
-    this.loadActiveTags();
-  }
-
-  public tracker: INotebookTracker;
-  private tagList: string[] = [];
-  private label: boolean = false;
-  protected translator: ITranslator;
-  private _trans: TranslationBundle;
-}
diff --git a/packages/celltags/src/widget.ts b/packages/celltags/src/widget.ts
deleted file mode 100644
index 49897a938208..000000000000
--- a/packages/celltags/src/widget.ts
+++ /dev/null
@@ -1,149 +0,0 @@
-import { checkIcon } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { TagTool } from './tool';
-
-/**
- * A widget which hosts a cell tags area.
- */
-export class TagWidget extends Widget {
-  /**
-   * Construct a new tag widget.
-   */
-  constructor(name: string) {
-    super();
-    this.applied = true;
-    this.name = name;
-    this.addClass('tag');
-    this.buildTag();
-  }
-
-  /**
-   * Create tag div with icon and attach to this.node.
-   */
-  buildTag() {
-    const text = document.createElement('span');
-    text.textContent = this.name;
-    text.style.textOverflow = 'ellipsis';
-    const tag = document.createElement('div');
-    tag.className = 'tag-holder';
-    tag.appendChild(text);
-    const iconContainer = checkIcon.element({
-      tag: 'span',
-      elementPosition: 'center',
-      height: '18px',
-      width: '18px',
-      marginLeft: '5px',
-      marginRight: '-3px'
-    });
-    if (this.applied) {
-      this.addClass('applied-tag');
-    } else {
-      this.addClass('unapplied-tag');
-      iconContainer.style.display = 'none';
-    }
-    tag.appendChild(iconContainer);
-    this.node.appendChild(tag);
-  }
-
-  /**
-   * Handle `after-attach` messages for the widget.
-   */
-  onAfterAttach() {
-    this.node.addEventListener('mousedown', this);
-    this.node.addEventListener('mouseover', this);
-    this.node.addEventListener('mouseout', this);
-  }
-
-  /**
-   * Handle `before-detach` messages for the widget.
-   */
-  onBeforeDetach() {
-    this.node.removeEventListener('mousedown', this);
-    this.node.removeEventListener('mouseover', this);
-    this.node.removeEventListener('mouseout', this);
-  }
-
-  /**
-   * Handle the DOM events for the widget.
-   *
-   * @param event - The DOM event sent to the widget.
-   *
-   * #### Notes
-   * This method implements the DOM `EventListener` interface and is
-   * called in response to events on the dock panel's node. It should
-   * not be called directly by user code.
-   */
-  handleEvent(event: Event): void {
-    switch (event.type) {
-      case 'mousedown':
-        this._evtClick();
-        break;
-      case 'mouseover':
-        this._evtMouseOver();
-        break;
-      case 'mouseout':
-        this._evtMouseOut();
-        break;
-      default:
-        break;
-    }
-  }
-
-  /**
-   * Handle `update-request` messages. Check if applied to current active cell.
-   */
-  onUpdateRequest() {
-    const applied = this.parent?.checkApplied(this.name);
-    if (applied !== this.applied) {
-      this.toggleApplied();
-    }
-  }
-
-  /**
-   * Update styling to reflect whether tag is applied to current active cell.
-   */
-  toggleApplied() {
-    if (this.applied) {
-      this.removeClass('applied-tag');
-      (this.node.firstChild?.lastChild as HTMLSpanElement).style.display =
-        'none';
-      this.addClass('unapplied-tag');
-    } else {
-      this.removeClass('unapplied-tag');
-      (this.node.firstChild?.lastChild as HTMLSpanElement).style.display =
-        'inline-block';
-      this.addClass('applied-tag');
-    }
-    this.applied = !this.applied;
-  }
-
-  /**
-   * Handle the `'click'` event for the widget.
-   */
-  private _evtClick() {
-    if (this.applied) {
-      this.parent?.removeTag(this.name);
-    } else {
-      this.parent?.addTag(this.name);
-    }
-    this.toggleApplied();
-  }
-
-  /**
-   * Handle the `'mouseover'` event for the widget.
-   */
-  private _evtMouseOver() {
-    (this.node as HTMLElement).classList.add('tag-hover');
-  }
-
-  /**
-   * Handle the `'mouseout'` event for the widget.
-   */
-  private _evtMouseOut() {
-    (this.node as HTMLElement).classList.remove('tag-hover');
-  }
-
-  public name: string;
-  private applied: boolean;
-  public parent: TagTool | null = null;
-}
diff --git a/packages/codeeditor/.vscode/launch.json b/packages/codeeditor/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/codeeditor/.vscode/launch.json
+++ b/packages/codeeditor/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/codeeditor/babel.config.js b/packages/codeeditor/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/codeeditor/babel.config.js
+++ b/packages/codeeditor/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/codeeditor/jest.config.js b/packages/codeeditor/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/codeeditor/jest.config.js
+++ b/packages/codeeditor/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/codeeditor/package.json b/packages/codeeditor/package.json
index 50910c93caa7..4d999a991806 100644
--- a/packages/codeeditor/package.json
+++ b/packages/codeeditor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/codeeditor",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Abstract Code Editor",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,32 +37,34 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@codemirror/state": "^6.2.0",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/codeeditor/src/editor.ts b/packages/codeeditor/src/editor.ts
index 37b6eed4baff..04f6d9219d18 100644
--- a/packages/codeeditor/src/editor.ts
+++ b/packages/codeeditor/src/editor.ts
@@ -1,24 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import type { Extension } from '@codemirror/state';
+import { ISharedText, YFile } from '@jupyter/ydoc';
 import { IChangedArgs } from '@jupyterlab/coreutils';
-import * as nbformat from '@jupyterlab/nbformat';
-import {
-  IModelDB,
-  IObservableMap,
-  IObservableString,
-  IObservableValue,
-  ModelDB,
-  ObservableValue
-} from '@jupyterlab/observables';
-import * as models from '@jupyterlab/shared-models';
+import { IObservableMap, ObservableMap } from '@jupyterlab/observables';
 import { ITranslator } from '@jupyterlab/translation';
 import { JSONObject } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 
-const globalModelDBMutex = models.createMutex();
-
 /**
  * A namespace for code editors.
  *
@@ -61,7 +52,7 @@ export namespace CodeEditor {
   /**
    * An interface describing editor state coordinates.
    */
-  export interface ICoordinate extends JSONObject, ClientRect {}
+  export interface ICoordinate extends DOMRectReadOnly {}
 
   /**
    * A range.
@@ -86,35 +77,6 @@ export namespace CodeEditor {
     readonly end: IPosition;
   }
 
-  /**
-   * A selection style.
-   */
-  export interface ISelectionStyle extends JSONObject {
-    /**
-     * A class name added to a selection.
-     */
-    className: string;
-
-    /**
-     * A display name added to a selection.
-     */
-    displayName: string;
-
-    /**
-     * A color for UI elements.
-     */
-    color: string;
-  }
-
-  /**
-   * The default selection style.
-   */
-  export const defaultSelectionStyle: ISelectionStyle = {
-    className: '',
-    displayName: '',
-    color: 'black'
-  };
-
   /**
    * A text selection.
    */
@@ -123,11 +85,6 @@ export namespace CodeEditor {
      * The uuid of the text selection owner.
      */
     readonly uuid: string;
-
-    /**
-     * The style of this selection.
-     */
-    readonly style: ISelectionStyle;
   }
 
   /**
@@ -176,16 +133,6 @@ export namespace CodeEditor {
      */
     mimeTypeChanged: ISignal<IModel, IChangedArgs<string>>;
 
-    /**
-     * A signal emitted when the shared model was switched.
-     */
-    sharedModelSwitched: ISignal<IModel, boolean>;
-
-    /**
-     * The text stored in the model.
-     */
-    readonly value: IObservableString;
-
     /**
      * A mime type of the model.
      *
@@ -199,25 +146,10 @@ export namespace CodeEditor {
      */
     readonly selections: IObservableMap<ITextSelection[]>;
 
-    /**
-     * The underlying `IModelDB` instance in which model
-     * data is stored.
-     */
-    readonly modelDB: IModelDB;
-
     /**
      * The shared model for the cell editor.
      */
-    readonly sharedModel: models.ISharedText;
-
-    /**
-     * When we initialize a cell model, we create a standalone cell model that cannot be shared in a YNotebook.
-     * Call this function to re-initialize the local representation based on a fresh shared model (e.g. models.YFile or models.YCodeCell).
-     */
-    switchSharedModel(
-      sharedModel: models.ISharedText,
-      reinitialize: boolean
-    ): void;
+    readonly sharedModel: ISharedText;
   }
 
   /**
@@ -227,124 +159,17 @@ export namespace CodeEditor {
     /**
      * Construct a new Model.
      */
-    constructor(options?: Model.IOptions) {
-      options = options || {};
-      if (options.modelDB) {
-        this.modelDB = options.modelDB;
-      } else {
-        this.modelDB = new ModelDB();
-      }
-      this.sharedModel = models.createStandaloneCell({
-        cell_type: this.type,
-        id: options.id
-      }) as models.ISharedText;
-      this.sharedModel.changed.connect(this._onSharedModelChanged, this);
-
-      const value = this.modelDB.createString('value');
-      value.changed.connect(this._onModelDBValueChanged, this);
-      value.text = value.text || options.value || '';
-
-      const mimeType = this.modelDB.createValue('mimeType');
-      mimeType.changed.connect(this._onModelDBMimeTypeChanged, this);
-      mimeType.set(options.mimeType || 'text/plain');
-
-      this.modelDB.createMap('selections');
-    }
-
-    /**
-     * When we initialize a cell model, we create a standalone model that cannot be shared in a YNotebook.
-     * Call this function to re-initialize the local representation based on a fresh shared model (e.g. models.YFile or models.YCodeCell).
-     *
-     * @param sharedModel
-     * @param reinitialize Whether to reinitialize the shared model.
-     */
-    public switchSharedModel(
-      sharedModel: models.ISharedText,
-      reinitialize?: boolean
-    ): void {
-      if (reinitialize) {
-        // update local modeldb
-        // @todo also change metadata
-        this.value.text = sharedModel.getSource();
-      }
-      this.sharedModel.changed.disconnect(this._onSharedModelChanged, this);
-      this.sharedModel.dispose();
-      // clone model retrieve a shared (not standalone) model
-      this.sharedModel = sharedModel;
-      this.sharedModel.changed.connect(this._onSharedModelChanged, this);
-      this._sharedModelSwitched.emit(true);
-    }
-
-    /**
-     * We update the modeldb store when the shared model changes.
-     * To ensure that we don't run into infinite loops, we wrap this call in a "mutex".
-     * The "mutex" ensures that the wrapped code can only be executed by either the sharedModelChanged handler
-     * or the modelDB change handler.
-     */
-    protected _onSharedModelChanged(
-      sender: models.ISharedBaseCell<any>,
-      change: models.CellChange<nbformat.IBaseCellMetadata>
-    ): void {
-      globalModelDBMutex(() => {
-        if (change.sourceChange) {
-          const value = this.modelDB.get('value') as IObservableString;
-          let currpos = 0;
-          change.sourceChange.forEach(delta => {
-            if (delta.insert != null) {
-              value.insert(currpos, delta.insert);
-              currpos += delta.insert.length;
-            } else if (delta.delete != null) {
-              value.remove(currpos, currpos + delta.delete);
-            } else if (delta.retain != null) {
-              currpos += delta.retain;
-            }
-          });
-        }
-      });
-    }
-
-    /**
-     * Handle a change to the modelDB value.
-     */
-    private _onModelDBValueChanged(
-      value: IObservableString,
-      event: IObservableString.IChangedArgs
-    ): void {
-      globalModelDBMutex(() => {
-        this.sharedModel.transact(() => {
-          switch (event.type) {
-            case 'insert':
-              this.sharedModel.updateSource(
-                event.start,
-                event.start,
-                event.value
-              );
-              break;
-            case 'remove':
-              this.sharedModel.updateSource(event.start, event.end);
-              break;
-            default:
-              this.sharedModel.setSource(value.text);
-              break;
-          }
-        });
-      });
-    }
-
-    get type(): nbformat.CellType {
-      return 'code';
+    constructor(options: Model.IOptions = {}) {
+      // Track if we need to dispose the model or not.
+      this.standaloneModel = typeof options.sharedModel === 'undefined';
+      this.sharedModel = options.sharedModel ?? new YFile();
+      this._mimeType = options.mimeType ?? 'text/plain';
     }
 
     /**
      * The shared model for the cell editor.
      */
-    sharedModel: models.ISharedText;
-
-    /**
-     * The underlying `IModelDB` instance in which model
-     * data is stored.
-     */
-    readonly modelDB: IModelDB;
+    readonly sharedModel: ISharedText;
 
     /**
      * A signal emitted when a mimetype changes.
@@ -353,39 +178,30 @@ export namespace CodeEditor {
       return this._mimeTypeChanged;
     }
 
-    /**
-     * A signal emitted when the shared model was switched.
-     */
-    get sharedModelSwitched(): ISignal<this, boolean> {
-      return this._sharedModelSwitched;
-    }
-
-    /**
-     * Get the value of the model.
-     */
-    get value(): IObservableString {
-      return this.modelDB.get('value') as IObservableString;
-    }
-
     /**
      * Get the selections for the model.
      */
     get selections(): IObservableMap<ITextSelection[]> {
-      return this.modelDB.get('selections') as IObservableMap<ITextSelection[]>;
+      return this._selections;
     }
 
     /**
      * A mime type of the model.
      */
     get mimeType(): string {
-      return this.modelDB.getValue('mimeType') as string;
+      return this._mimeType;
     }
     set mimeType(newValue: string) {
       const oldValue = this.mimeType;
       if (oldValue === newValue) {
         return;
       }
-      this.modelDB.setValue('mimeType', newValue);
+      this._mimeType = newValue;
+      this._mimeTypeChanged.emit({
+        name: 'mimeType',
+        oldValue: oldValue,
+        newValue: newValue
+      });
     }
 
     /**
@@ -403,24 +219,22 @@ export namespace CodeEditor {
         return;
       }
       this._isDisposed = true;
-      this.modelDB.dispose();
+      this._selections.dispose();
+      if (this.standaloneModel) {
+        this.sharedModel.dispose();
+      }
       Signal.clearData(this);
     }
 
-    private _onModelDBMimeTypeChanged(
-      mimeType: IObservableValue,
-      args: ObservableValue.IChangedArgs
-    ): void {
-      this._mimeTypeChanged.emit({
-        name: 'mimeType',
-        oldValue: args.oldValue as string,
-        newValue: args.newValue as string
-      });
-    }
+    /**
+     * Whether the model should disposed the shared model on disposal or not.
+     */
+    protected standaloneModel = false;
 
     private _isDisposed = false;
+    private _selections = new ObservableMap<ITextSelection[]>();
+    private _mimeType = 'text/plain';
     private _mimeTypeChanged = new Signal<this, IChangedArgs<string>>(this);
-    private _sharedModelSwitched = new Signal<this, boolean>(this);
   }
 
   /**
@@ -499,6 +313,9 @@ export namespace CodeEditor {
 
   /**
    * A widget that provides a code editor.
+   *
+   * As of JupyterLab 4.0.0, it is not possible to provide an editor
+   * that is different of CodeMirror 6.
    */
   export interface IEditor extends ISelectionOwner, IDisposable {
     /**
@@ -506,11 +323,6 @@ export namespace CodeEditor {
      */
     readonly edgeRequested: ISignal<IEditor, EdgeLocation>;
 
-    /**
-     * The default selection style for the editor.
-     */
-    selectionStyle: CodeEditor.ISelectionStyle;
-
     /**
      * The DOM node that hosts the editor.
      */
@@ -539,17 +351,26 @@ export namespace CodeEditor {
     /**
      * Get a config option for the editor.
      */
-    getOption<K extends keyof IConfig>(option: K): IConfig[K];
+    getOption(option: string): unknown;
 
     /**
      * Set a config option for the editor.
      */
-    setOption<K extends keyof IConfig>(option: K, value: IConfig[K]): void;
+    setOption(option: string, value: unknown): void;
 
     /**
      * Set config options for the editor.
      */
-    setOptions(options: Partial<IConfig>): void;
+    setOptions(options: Record<string, any>): void;
+
+    /**
+     * Inject an extension into the editor
+     *
+     * @alpha
+     * @experimental
+     * @param ext Editor extension
+     */
+    injectExtension(ext: Extension): void;
 
     /**
      * Returns the content for the given line number.
@@ -614,38 +435,6 @@ export namespace CodeEditor {
      */
     blur(): void;
 
-    /**
-     * Repaint the editor.
-     *
-     * #### Notes
-     * A repainted editor should fit to its host node.
-     */
-    refresh(): void;
-
-    /**
-     * Resize the editor to fit its host node.
-     */
-    resizeToFit(): void;
-
-    /**
-     * Add a keydown handler to the editor.
-     *
-     * @param handler - A keydown handler.
-     *
-     * @returns A disposable that can be used to remove the handler.
-     */
-    addKeydownHandler(handler: KeydownHandler): IDisposable;
-
-    /**
-     * Set the size of the editor.
-     *
-     * @param size - The desired size.
-     *
-     * #### Notes
-     * Use `null` if the size is unknown.
-     */
-    setSize(size: IDimension | null): void;
-
     /**
      * Reveals the given position in the editor.
      *
@@ -656,7 +445,7 @@ export namespace CodeEditor {
     /**
      * Reveals the given selection in the editor.
      *
-     * @param position - The desired selection to reveal.
+     * @param selection - The desired selection to reveal.
      */
     revealSelection(selection: IRange): void;
 
@@ -680,19 +469,24 @@ export namespace CodeEditor {
     getPositionForCoordinate(coordinate: ICoordinate): IPosition | null;
 
     /**
-     * Inserts a new line at the cursor position and indents it.
+     * Get a list of tokens for the current editor text content.
      */
-    newIndentedLine(): void;
+    getTokens(): CodeEditor.IToken[];
 
     /**
-     * Gets the token at a given position.
+     * Get the token at a given editor position.
      */
-    getTokenForPosition(position: IPosition): IToken;
+    getTokenAt(offset: number): CodeEditor.IToken;
 
     /**
-     * Gets the list of tokens for the editor model.
+     * Get the token a the cursor position.
      */
-    getTokens(): IToken[];
+    getTokenAtCursor(): CodeEditor.IToken;
+
+    /**
+     * Inserts a new line at the cursor position and indents it.
+     */
+    newIndentedLine(): void;
 
     /**
      * Replaces selection with the given text.
@@ -705,119 +499,6 @@ export namespace CodeEditor {
    */
   export type Factory = (options: IOptions) => CodeEditor.IEditor;
 
-  /**
-   * The configuration options for an editor.
-   */
-  export interface IConfig {
-    /**
-     * Half-period in milliseconds used for cursor blinking.
-     * By setting this to zero, blinking can be disabled.
-     * A negative value hides the cursor entirely.
-     */
-    cursorBlinkRate: number;
-
-    /**
-     * User preferred font family for text editors.
-     */
-    fontFamily: string | null;
-
-    /**
-     * User preferred size in pixel of the font used in text editors.
-     */
-    fontSize: number | null;
-
-    /**
-     * User preferred text line height, as a multiplier of font size.
-     */
-    lineHeight: number | null;
-
-    /**
-     * Whether line numbers should be displayed.
-     */
-    lineNumbers: boolean;
-
-    /**
-     * Control the line wrapping of the editor. Possible values are:
-     * - "off", lines will never wrap.
-     * - "on", lines will wrap at the viewport border.
-     * - "wordWrapColumn", lines will wrap at `wordWrapColumn`.
-     * - "bounded", lines will wrap at minimum between viewport width and wordWrapColumn.
-     */
-    lineWrap: 'off' | 'on' | 'wordWrapColumn' | 'bounded';
-
-    /**
-     * Whether the editor is read-only.
-     */
-    readOnly: boolean;
-
-    /**
-     * The number of spaces a tab is equal to.
-     */
-    tabSize: number;
-
-    /**
-     * Whether to insert spaces when pressing Tab.
-     */
-    insertSpaces: boolean;
-
-    /**
-     * Whether to highlight matching brackets when one of them is selected.
-     */
-    matchBrackets: boolean;
-
-    /**
-     * Whether to automatically close brackets after opening them.
-     */
-    autoClosingBrackets: boolean;
-
-    /**
-     * Whether the editor should handle paste events.
-     */
-    handlePaste?: boolean;
-
-    /**
-     * The column where to break text line.
-     */
-    wordWrapColumn: number;
-
-    /**
-     * Column index at which rulers should be added.
-     */
-    rulers: Array<number>;
-
-    /**
-     * Whether to allow code folding
-     */
-    codeFolding: boolean;
-
-    /**
-     * Whether to highlight trailing whitespace
-     */
-    showTrailingSpace: boolean;
-  }
-
-  /**
-   * The default configuration options for an editor.
-   */
-  export const defaultConfig: IConfig = {
-    autoClosingBrackets: false,
-    codeFolding: false,
-    cursorBlinkRate: 530,
-    fontFamily: null,
-    fontSize: null,
-    handlePaste: true,
-    insertSpaces: true,
-    lineHeight: null,
-    lineNumbers: false,
-    lineWrap: 'on',
-    matchBrackets: true,
-    readOnly: false,
-    tabSize: 4,
-    rulers: [],
-    showTrailingSpace: false,
-    wordWrapColumn: 80
-  };
-
   /**
    * The options used to initialize an editor.
    */
@@ -833,24 +514,29 @@ export namespace CodeEditor {
     model: IModel;
 
     /**
-     * The desired uuid for the editor.
+     * The configuration options for the editor.
      */
-    uuid?: string;
+    config?: Record<string, any>;
 
     /**
-     * The default selection style for the editor.
+     * List of editor extensions to be added.
      */
-    selectionStyle?: Partial<CodeEditor.ISelectionStyle>;
+    extensions?: Extension[];
 
     /**
-     * The configuration options for the editor.
+     * Whether the editor will be inline or not.
      */
-    config?: Partial<IConfig>;
+    inline?: boolean;
 
     /**
      * The configuration options for the editor.
      */
     translator?: ITranslator;
+
+    /**
+     * The desired uuid for the editor.
+     */
+    uuid?: string;
   }
 
   export namespace Model {
@@ -860,20 +546,15 @@ export namespace CodeEditor {
        */
       id?: string;
 
-      /**
-       * The initial value of the model.
-       */
-      value?: string;
-
       /**
        * The mimetype of the model.
        */
       mimeType?: string;
 
       /**
-       * An optional modelDB for storing model state.
+       * Shared editor text.
        */
-      modelDB?: IModelDB;
+      sharedModel?: ISharedText;
     }
   }
 }
diff --git a/packages/codeeditor/src/factory.ts b/packages/codeeditor/src/factory.ts
index ac4609ebeb43..836de272caf9 100644
--- a/packages/codeeditor/src/factory.ts
+++ b/packages/codeeditor/src/factory.ts
@@ -10,10 +10,10 @@ export interface IEditorFactoryService {
   /**
    * Create a new editor for inline code.
    */
-  newInlineEditor(options: CodeEditor.IOptions): CodeEditor.IEditor;
+  newInlineEditor: CodeEditor.Factory;
 
   /**
    * Create a new editor for a full document.
    */
-  newDocumentEditor(options: CodeEditor.IOptions): CodeEditor.IEditor;
+  newDocumentEditor: CodeEditor.Factory;
 }
diff --git a/packages/codeeditor/src/index.ts b/packages/codeeditor/src/index.ts
index 9d5ce519dfdd..2d2bb0768ece 100644
--- a/packages/codeeditor/src/index.ts
+++ b/packages/codeeditor/src/index.ts
@@ -6,8 +6,10 @@
  */
 
 export * from './editor';
-export * from './jsoneditor';
-export * from './widget';
 export * from './factory';
+export * from './jsoneditor';
+export * from './lineCol';
 export * from './mimetype';
 export * from './tokens';
+export * from './viewer';
+export * from './widget';
diff --git a/packages/codeeditor/src/jsoneditor.ts b/packages/codeeditor/src/jsoneditor.ts
index 380efe374a28..2effbf72d817 100644
--- a/packages/codeeditor/src/jsoneditor.ts
+++ b/packages/codeeditor/src/jsoneditor.ts
@@ -2,6 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IObservableJSON } from '@jupyterlab/observables';
+import { ISharedText, SourceChange } from '@jupyter/ydoc';
 import {
   ITranslator,
   nullTranslator,
@@ -73,14 +74,17 @@ export class JSONEditor extends Widget {
     this.node.appendChild(this.headerNode);
     this.node.appendChild(this.editorHostNode);
 
-    const model = new CodeEditor.Model();
+    const model = new CodeEditor.Model({ mimeType: 'application/json' });
+    model.sharedModel.changed.connect(this._onModelChanged, this);
 
-    model.value.text = this._trans.__('No data!');
-    model.mimeType = 'application/json';
-    model.value.changed.connect(this._onValueChanged, this);
     this.model = model;
-    this.editor = options.editorFactory({ host: this.editorHostNode, model });
-    this.editor.setOption('readOnly', true);
+    this.editor = options.editorFactory({
+      host: this.editorHostNode,
+      model,
+      config: {
+        readOnly: true
+      }
+    });
   }
 
   /**
@@ -149,8 +153,7 @@ export class JSONEditor extends Widget {
       return;
     }
 
-    // The model does not dispose the shared model by default
-    this.model.sharedModel.dispose();
+    this.source?.dispose();
     this.model.dispose();
     this.editor.dispose();
 
@@ -190,23 +193,6 @@ export class JSONEditor extends Widget {
     this.revertButtonNode.hidden = true;
     this.commitButtonNode.hidden = true;
     this.headerNode.addEventListener('click', this);
-    if (this.isVisible) {
-      this.update();
-    }
-  }
-
-  /**
-   * Handle `after-show` messages for the widget.
-   */
-  protected onAfterShow(msg: Message): void {
-    this.update();
-  }
-
-  /**
-   * Handle `update-request` messages for the widget.
-   */
-  protected onUpdateRequest(msg: Message): void {
-    this.editor.refresh();
   }
 
   /**
@@ -239,20 +225,22 @@ export class JSONEditor extends Widget {
   /**
    * Handle change events.
    */
-  private _onValueChanged(): void {
-    let valid = true;
-    try {
-      const value = JSON.parse(this.editor.model.value.text);
-      this.removeClass(ERROR_CLASS);
-      this._inputDirty =
-        !this._changeGuard && !JSONExt.deepEqual(value, this._originalValue);
-    } catch (err) {
-      this.addClass(ERROR_CLASS);
-      this._inputDirty = true;
-      valid = false;
+  private _onModelChanged(model: ISharedText, change: SourceChange): void {
+    if (change.sourceChange) {
+      let valid = true;
+      try {
+        const value = JSON.parse(this.editor.model.sharedModel.getSource());
+        this.removeClass(ERROR_CLASS);
+        this._inputDirty =
+          !this._changeGuard && !JSONExt.deepEqual(value, this._originalValue);
+      } catch (err) {
+        this.addClass(ERROR_CLASS);
+        this._inputDirty = true;
+        valid = false;
+      }
+      this.revertButtonNode.hidden = !this._inputDirty;
+      this.commitButtonNode.hidden = !valid || !this._inputDirty;
     }
-    this.revertButtonNode.hidden = !this._inputDirty;
-    this.commitButtonNode.hidden = !valid || !this._inputDirty;
   }
 
   /**
@@ -290,7 +278,7 @@ export class JSONEditor extends Widget {
   private _mergeContent(): void {
     const model = this.editor.model;
     const old = this._originalValue;
-    const user = JSON.parse(model.value.text) as JSONObject;
+    const user = JSON.parse(model.sharedModel.getSource()) as JSONObject;
     const source = this.source;
     if (!source) {
       return;
@@ -324,18 +312,17 @@ export class JSONEditor extends Widget {
     const content = this._source ? this._source.toJSON() : {};
     this._changeGuard = true;
     if (content === void 0) {
-      model.value.text = this._trans.__('No data!');
+      model.sharedModel.setSource(this._trans.__('No data!'));
       this._originalValue = JSONExt.emptyObject;
     } else {
       const value = JSON.stringify(content, null, 4);
-      model.value.text = value;
+      model.sharedModel.setSource(value);
       this._originalValue = content;
       // Move the cursor to within the brace.
       if (value.length > 1 && value[0] === '{') {
         this.editor.setCursorPosition({ line: 0, column: 1 });
       }
     }
-    this.editor.refresh();
     this._changeGuard = false;
     this.commitButtonNode.hidden = true;
     this.revertButtonNode.hidden = true;
diff --git a/packages/statusbar/src/defaults/lineCol.tsx b/packages/codeeditor/src/lineCol.tsx
similarity index 89%
rename from packages/statusbar/src/defaults/lineCol.tsx
rename to packages/codeeditor/src/lineCol.tsx
index 24e631ad0316..4b47a3ee5848 100644
--- a/packages/statusbar/src/defaults/lineCol.tsx
+++ b/packages/codeeditor/src/lineCol.tsx
@@ -1,27 +1,21 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ReactWidget, VDomModel, VDomRenderer } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
+import { Popup, showPopup, TextItem } from '@jupyterlab/statusbar';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { lineFormIcon } from '@jupyterlab/ui-components';
-import React from 'react';
-import { classes } from 'typestyle/lib';
-import { interactiveItem, Popup, showPopup, TextItem } from '..';
 import {
-  lineFormButton,
-  lineFormButtonDiv,
-  lineFormButtonIcon,
-  lineFormCaption,
-  lineFormInput,
-  lineFormSearch,
-  lineFormWrapper,
-  lineFormWrapperFocusWithin
-} from '../style/lineForm';
+  classes,
+  lineFormIcon,
+  ReactWidget,
+  VDomModel,
+  VDomRenderer
+} from '@jupyterlab/ui-components';
+import React from 'react';
+import { CodeEditor } from './editor';
 
 /**
  * A namespace for LineFormComponent statics.
@@ -101,18 +95,18 @@ class LineFormComponent extends React.Component<
    */
   render() {
     return (
-      <div className={lineFormSearch}>
+      <div className="jp-lineFormSearch">
         <form name="lineColumnForm" onSubmit={this._handleSubmit} noValidate>
           <div
             className={classes(
-              lineFormWrapper,
+              'jp-lineFormWrapper',
               'lm-lineForm-wrapper',
-              this.state.hasFocus ? lineFormWrapperFocusWithin : undefined
+              this.state.hasFocus ? 'jp-lineFormWrapperFocusWithin' : undefined
             )}
           >
             <input
               type="text"
-              className={lineFormInput}
+              className="jp-lineFormInput"
               onChange={this._handleChange}
               onFocus={this._handleFocus}
               onBlur={this._handleBlur}
@@ -121,15 +115,19 @@ class LineFormComponent extends React.Component<
                 this._textInput = input;
               }}
             />
-            <div className={lineFormButtonDiv}>
+            <div className="jp-baseLineForm jp-lineFormButtonContainer">
               <lineFormIcon.react
-                className={lineFormButtonIcon}
+                className="jp-baseLineForm jp-lineFormButtonIcon"
                 elementPosition="center"
               />
-              <input type="submit" className={lineFormButton} value="" />
+              <input
+                type="submit"
+                className="jp-baseLineForm jp-lineFormButton"
+                value=""
+              />
             </div>
           </div>
-          <label className={lineFormCaption}>
+          <label className="jp-lineFormCaption">
             {this._trans.__(
               'Go to line number between 1 and %1',
               this.props.maxLine
@@ -243,7 +241,7 @@ export class LineCol extends VDomRenderer<LineCol.Model> {
    */
   constructor(translator?: ITranslator) {
     super(new LineCol.Model());
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
     this.translator = translator || nullTranslator;
   }
 
diff --git a/packages/codeeditor/src/mimetype.ts b/packages/codeeditor/src/mimetype.ts
index 184e67aa7512..e2e4b2ef1c61 100644
--- a/packages/codeeditor/src/mimetype.ts
+++ b/packages/codeeditor/src/mimetype.ts
@@ -16,6 +16,8 @@ export interface IEditorMimeTypeService {
    *
    * #### Notes
    * If a mime type cannot be found returns the default mime type `text/plain`, never `null`.
+   * There may be more than one mime type, but only the first one will be returned.
+   * To access all mime types, use `IEditorLanguageRegistry` instead.
    */
   getMimeTypeByLanguage(info: nbformat.ILanguageInfoMetadata): string;
 
@@ -28,6 +30,8 @@ export interface IEditorMimeTypeService {
    *
    * #### Notes
    * If a mime type cannot be found returns the default mime type `text/plain`, never `null`.
+   * There may be more than one mime type, but only the first one will be returned.
+   * To access all mime types, use `IEditorLanguageRegistry` instead.
    */
   getMimeTypeByFilePath(filePath: string): string;
 }
diff --git a/packages/codeeditor/src/tokens.ts b/packages/codeeditor/src/tokens.ts
index 88c51742ac14..f0b7f199b9c1 100644
--- a/packages/codeeditor/src/tokens.ts
+++ b/packages/codeeditor/src/tokens.ts
@@ -2,17 +2,20 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Token } from '@lumino/coreutils';
+import { Widget } from '@lumino/widgets';
+import { CodeEditor } from './editor';
 import { IEditorFactoryService } from './factory';
 import { IEditorMimeTypeService } from './mimetype';
 
-/* tslint:disable */
 /**
  * Code editor services token.
  */
 export const IEditorServices = new Token<IEditorServices>(
-  '@jupyterlab/codeeditor:IEditorServices'
+  '@jupyterlab/codeeditor:IEditorServices',
+  `A service for the text editor provider
+  for the application. Use this to create new text editors and host them in your
+  UI elements.`
 );
-/* tslint:enable */
 
 /**
  * Code editor services.
@@ -28,3 +31,31 @@ export interface IEditorServices {
    */
   readonly mimeTypeService: IEditorMimeTypeService;
 }
+
+/**
+ * Code editor cursor position token.
+ */
+export const IPositionModel = new Token<IPositionModel>(
+  '@jupyterlab/codeeditor:IPositionModel',
+  `A service to handle an code editor cursor position.`
+);
+
+/**
+ * Code editor cursor position model.
+ */
+export interface IPositionModel {
+  /**
+   * Add a editor provider.
+   *
+   * A provider will receive the currently active widget and must return the
+   * associated editor if it can or null otherwise.
+   */
+  addEditorProvider: (
+    provider: (widget: Widget | null) => Promise<CodeEditor.IEditor | null>
+  ) => void;
+
+  /**
+   * Callback to force updating the provider
+   */
+  update(): void;
+}
diff --git a/packages/codeeditor/src/viewer.ts b/packages/codeeditor/src/viewer.ts
new file mode 100644
index 000000000000..6d56f630a3f6
--- /dev/null
+++ b/packages/codeeditor/src/viewer.ts
@@ -0,0 +1,93 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { StackedLayout, Widget } from '@lumino/widgets';
+import { CodeEditor } from './editor';
+import { CodeEditorWrapper } from './widget';
+
+export class CodeViewerWidget extends Widget {
+  /**
+   * Construct a new code viewer widget.
+   */
+  constructor(options: CodeViewerWidget.IOptions) {
+    super();
+    this.model = options.model;
+
+    const editorWidget = new CodeEditorWrapper({
+      factory: options.factory,
+      model: this.model,
+      editorOptions: {
+        ...options.editorOptions,
+        config: { ...options.editorOptions?.config, readOnly: true }
+      }
+    });
+    this.editor = editorWidget.editor;
+
+    const layout = (this.layout = new StackedLayout());
+    layout.addWidget(editorWidget);
+  }
+
+  static createCodeViewer(
+    options: CodeViewerWidget.INoModelOptions
+  ): CodeViewerWidget {
+    const { content, mimeType, ...others } = options;
+    const model = new CodeEditor.Model({
+      mimeType
+    });
+    model.sharedModel.setSource(content);
+    const widget = new CodeViewerWidget({ ...others, model });
+    widget.disposed.connect(() => {
+      model.dispose();
+    });
+    return widget;
+  }
+
+  get content(): string {
+    return this.model.sharedModel.getSource();
+  }
+
+  get mimeType(): string {
+    return this.model.mimeType;
+  }
+
+  readonly model: CodeEditor.IModel;
+  readonly editor: CodeEditor.IEditor;
+}
+
+/**
+ * The namespace for code viewer widget.
+ */
+export namespace CodeViewerWidget {
+  /**
+   * The options used to create an code viewer widget.
+   */
+  export interface IOptions {
+    /**
+     * A code editor factory.
+     */
+    factory: CodeEditor.Factory;
+    /**
+     * The content model for the viewer.
+     */
+    model: CodeEditor.IModel;
+    /**
+     * Code editor options
+     */
+    editorOptions?: Omit<CodeEditor.IOptions, 'host' | 'model'>;
+  }
+
+  /**
+   * The options used to create an code viewer widget without a model.
+   */
+  export interface INoModelOptions extends Omit<IOptions, 'model'> {
+    /**
+     * The content to display in the viewer.
+     */
+    content: string;
+
+    /**
+     * The mime type for the content.
+     */
+    mimeType?: string;
+  }
+}
diff --git a/packages/codeeditor/src/widget.ts b/packages/codeeditor/src/widget.ts
index 2d98f14473d5..1844f8715798 100644
--- a/packages/codeeditor/src/widget.ts
+++ b/packages/codeeditor/src/widget.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { MimeData } from '@lumino/coreutils';
-import { IDragEvent } from '@lumino/dragdrop';
+import { Drag } from '@lumino/dragdrop';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { CodeEditor } from './';
@@ -37,15 +37,13 @@ export class CodeEditorWrapper extends Widget {
    */
   constructor(options: CodeEditorWrapper.IOptions) {
     super();
-    const editor = (this.editor = options.factory({
+    const { factory, model, editorOptions } = options;
+    const editor = (this.editor = factory({
       host: this.node,
-      model: options.model,
-      uuid: options.uuid,
-      config: options.config,
-      selectionStyle: options.selectionStyle
+      model,
+      ...editorOptions
     }));
     editor.model.selections.changed.connect(this._onSelectionsChanged, this);
-    this._updateOnShow = options.updateOnShow !== false;
   }
 
   /**
@@ -63,12 +61,12 @@ export class CodeEditorWrapper extends Widget {
   /**
    * Dispose of the resources held by the widget.
    */
-  dispose() {
+  dispose(): void {
     if (this.isDisposed) {
       return;
     }
-    super.dispose();
     this.editor.dispose();
+    super.dispose();
   }
 
   /**
@@ -84,16 +82,16 @@ export class CodeEditorWrapper extends Widget {
   handleEvent(event: Event): void {
     switch (event.type) {
       case 'lm-dragenter':
-        this._evtDragEnter(event as IDragEvent);
+        this._evtDragEnter(event as Drag.Event);
         break;
       case 'lm-dragleave':
-        this._evtDragLeave(event as IDragEvent);
+        this._evtDragLeave(event as Drag.Event);
         break;
       case 'lm-dragover':
-        this._evtDragOver(event as IDragEvent);
+        this._evtDragOver(event as Drag.Event);
         break;
       case 'lm-drop':
-        this._evtDrop(event as IDragEvent);
+        this._evtDrop(event as Drag.Event);
         break;
       default:
         break;
@@ -117,12 +115,6 @@ export class CodeEditorWrapper extends Widget {
     node.addEventListener('lm-dragleave', this);
     node.addEventListener('lm-dragover', this);
     node.addEventListener('lm-drop', this);
-    // We have to refresh at least once after attaching,
-    // while visible.
-    this._hasRefreshedSinceAttach = false;
-    if (this.isVisible) {
-      this.update();
-    }
   }
 
   /**
@@ -136,36 +128,6 @@ export class CodeEditorWrapper extends Widget {
     node.removeEventListener('lm-drop', this);
   }
 
-  /**
-   * A message handler invoked on an `'after-show'` message.
-   */
-  protected onAfterShow(msg: Message): void {
-    if (this._updateOnShow || !this._hasRefreshedSinceAttach) {
-      this.update();
-    }
-  }
-
-  /**
-   * A message handler invoked on a `'resize'` message.
-   */
-  protected onResize(msg: Widget.ResizeMessage): void {
-    if (msg.width >= 0 && msg.height >= 0) {
-      this.editor.setSize(msg);
-    } else if (this.isVisible) {
-      this.editor.resizeToFit();
-    }
-  }
-
-  /**
-   * A message handler invoked on an `'update-request'` message.
-   */
-  protected onUpdateRequest(msg: Message): void {
-    if (this.isVisible) {
-      this._hasRefreshedSinceAttach = true;
-      this.editor.refresh();
-    }
-  }
-
   /**
    * Handle a change in model selections.
    */
@@ -196,7 +158,7 @@ export class CodeEditorWrapper extends Widget {
   /**
    * Handle the `'lm-dragenter'` event for the widget.
    */
-  private _evtDragEnter(event: IDragEvent): void {
+  private _evtDragEnter(event: Drag.Event): void {
     if (this.editor.getOption('readOnly') === true) {
       return;
     }
@@ -212,7 +174,7 @@ export class CodeEditorWrapper extends Widget {
   /**
    * Handle the `'lm-dragleave'` event for the widget.
    */
-  private _evtDragLeave(event: IDragEvent): void {
+  private _evtDragLeave(event: Drag.Event): void {
     this.removeClass(DROP_TARGET_CLASS);
     if (this.editor.getOption('readOnly') === true) {
       return;
@@ -228,7 +190,7 @@ export class CodeEditorWrapper extends Widget {
   /**
    * Handle the `'lm-dragover'` event for the widget.
    */
-  private _evtDragOver(event: IDragEvent): void {
+  private _evtDragOver(event: Drag.Event): void {
     this.removeClass(DROP_TARGET_CLASS);
     if (this.editor.getOption('readOnly') === true) {
       return;
@@ -246,7 +208,7 @@ export class CodeEditorWrapper extends Widget {
   /**
    * Handle the `'lm-drop'` event for the widget.
    */
-  private _evtDrop(event: IDragEvent): void {
+  private _evtDrop(event: Drag.Event): void {
     if (this.editor.getOption('readOnly') === true) {
       return;
     }
@@ -263,7 +225,7 @@ export class CodeEditorWrapper extends Widget {
       y: event.y,
       width: 0,
       height: 0
-    };
+    } as CodeEditor.ICoordinate;
     const position = this.editor.getPositionForCoordinate(coordinate);
     if (position === null) {
       return;
@@ -276,11 +238,8 @@ export class CodeEditorWrapper extends Widget {
       return;
     }
     const offset = this.editor.getOffsetAt(position);
-    this.model.value.insert(offset, data);
+    this.model.sharedModel.updateSource(offset, offset, data);
   }
-
-  private _updateOnShow: boolean;
-  private _hasRefreshedSinceAttach = false;
 }
 
 /**
@@ -295,35 +254,20 @@ export namespace CodeEditorWrapper {
      * A code editor factory.
      *
      * #### Notes
-     * The widget needs a factory and a model instead of a `CodeEditor.IEditor`
-     * object because it needs to provide its own node as the host.
+     * The widget needs a factory and a the editor options
+     * because it needs to provide its own node as the host.
      */
     factory: CodeEditor.Factory;
 
     /**
-     * The model used to initialize the code editor.
+     * The content model for the wrapper.
      */
     model: CodeEditor.IModel;
 
     /**
-     * The desired uuid for the editor.
-     */
-    uuid?: string;
-
-    /**
-     * The configuration options for the editor.
-     */
-    config?: Partial<CodeEditor.IConfig>;
-
-    /**
-     * The default selection style for the editor.
-     */
-    selectionStyle?: CodeEditor.ISelectionStyle;
-
-    /**
-     * Whether to send an update request to the editor when it is shown.
+     * Code editor options
      */
-    updateOnShow?: boolean;
+    editorOptions?: Omit<CodeEditor.IOptions, 'host' | 'model'>;
   }
 }
 
diff --git a/packages/codeeditor/style/base.css b/packages/codeeditor/style/base.css
index e9ec26d4b8f8..b57de46a3edc 100644
--- a/packages/codeeditor/style/base.css
+++ b/packages/codeeditor/style/base.css
@@ -3,6 +3,7 @@
 |
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
+@import url('./linecol.css');
 
 .jp-JSONEditor {
   display: flex;
@@ -13,7 +14,7 @@
 .jp-JSONEditor-host {
   flex: 1 1 auto;
   border: var(--jp-border-width) solid var(--jp-input-border-color);
-  border-radius: 0px;
+  border-radius: 0;
   background: var(--jp-layout-color0);
   min-height: 50px;
   padding: 1px;
diff --git a/packages/codeeditor/style/index.css b/packages/codeeditor/style/index.css
index 4d4c5798f0af..5754d5a02af6 100644
--- a/packages/codeeditor/style/index.css
+++ b/packages/codeeditor/style/index.css
@@ -6,6 +6,6 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@lumino/dragdrop/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/codeeditor/style/index.js b/packages/codeeditor/style/index.js
index d68de46b864b..334e1408fa3a 100644
--- a/packages/codeeditor/style/index.js
+++ b/packages/codeeditor/style/index.js
@@ -6,6 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@lumino/dragdrop/style/index.js';
 
 import './base.css';
diff --git a/packages/codeeditor/style/linecol.css b/packages/codeeditor/style/linecol.css
new file mode 100644
index 000000000000..798f37a2767b
--- /dev/null
+++ b/packages/codeeditor/style/linecol.css
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+.jp-lineFormSearch {
+  padding: 4px 12px;
+  background-color: var(--jp-layout-color2);
+  box-shadow: var(--jp-toolbar-box-shadow);
+  z-index: 2;
+  font-size: var(--jp-ui-font-size1);
+}
+
+.jp-lineFormCaption {
+  font-size: var(--jp-ui-font-size0);
+  line-height: var(--jp-ui-font-size1);
+  margin-top: 4px;
+  color: var(--jp-ui-font-color0);
+}
+
+.jp-baseLineForm {
+  border: none;
+  border-radius: 0;
+  position: absolute;
+  background-size: 16px;
+  background-repeat: no-repeat;
+  background-position: center;
+  outline: none;
+}
+
+.jp-lineFormButtonContainer {
+  top: 4px;
+  right: 8px;
+  height: 24px;
+  padding: 0 12px;
+  width: 12px;
+}
+
+.jp-lineFormButtonIcon {
+  top: 0;
+  right: 0;
+  background-color: var(--jp-brand-color1);
+  height: 100%;
+  width: 100%;
+  box-sizing: border-box;
+  padding: 4px 6px;
+}
+
+.jp-lineFormButton {
+  top: 0;
+  right: 0;
+  background-color: transparent;
+  height: 100%;
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.jp-lineFormWrapper {
+  overflow: hidden;
+  padding: 0 8px;
+  border: 1px solid var(--jp-border-color0);
+  background-color: var(--jp-input-active-background);
+  height: 22px;
+}
+
+.jp-lineFormWrapperFocusWithin {
+  border: var(--jp-border-width) solid var(--md-blue-500);
+  box-shadow: inset 0 0 4px var(--md-blue-300);
+}
+
+.jp-lineFormInput {
+  background: transparent;
+  width: 200px;
+  height: 100%;
+  border: none;
+  outline: none;
+  color: var(--jp-ui-font-color0);
+  line-height: 28px;
+}
diff --git a/packages/codeeditor/test/editor.spec.ts b/packages/codeeditor/test/editor.spec.ts
index 21ee1d47fa11..8d8a5fa4bd67 100644
--- a/packages/codeeditor/test/editor.spec.ts
+++ b/packages/codeeditor/test/editor.spec.ts
@@ -2,13 +2,14 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { IObservableString } from '@jupyterlab/observables';
+import { ISharedText, SourceChange, YFile } from '@jupyter/ydoc';
 
 describe('CodeEditor.Model', () => {
   let model: CodeEditor.Model;
 
   beforeEach(() => {
-    model = new CodeEditor.Model();
+    const sharedModel = new YFile();
+    model = new CodeEditor.Model({ sharedModel });
   });
 
   afterEach(() => {
@@ -18,24 +19,28 @@ describe('CodeEditor.Model', () => {
   describe('#constructor()', () => {
     it('should create a CodeEditor Model', () => {
       expect(model).toBeInstanceOf(CodeEditor.Model);
-      expect(model.value.text).toBe('');
+      expect(model.sharedModel.getSource()).toBe('');
     });
 
     it('should create a CodeEditor Model with an initial value', () => {
-      const other = new CodeEditor.Model({ value: 'Initial text here' });
+      const sharedEditorModel = new YFile();
+      sharedEditorModel.setSource('Initial text here');
+      const other = new CodeEditor.Model({ sharedModel: sharedEditorModel });
       expect(other).toBeInstanceOf(CodeEditor.Model);
-      expect(other.value.text).toBe('Initial text here');
+      expect(other.sharedModel.getSource()).toBe('Initial text here');
       other.dispose();
     });
 
     it('should create a CodeEditor Model with an initial mimetype', () => {
+      const sharedEditorModel = new YFile();
+      sharedEditorModel.setSource('import this');
       const other = new CodeEditor.Model({
-        value: 'import this',
+        sharedModel: sharedEditorModel,
         mimeType: 'text/x-python'
       });
       expect(other).toBeInstanceOf(CodeEditor.Model);
       expect(other.mimeType).toBe('text/x-python');
-      expect(other.value.text).toBe('import this');
+      expect(other.sharedModel.getSource()).toBe('import this');
       other.dispose();
     });
   });
@@ -57,52 +62,40 @@ describe('CodeEditor.Model', () => {
   describe('#value', () => {
     it('should be the observable value of the model', () => {
       let called = false;
-      const handler = (
-        sender: IObservableString,
-        args: IObservableString.IChangedArgs
-      ) => {
-        expect(sender).toBe(model.value);
-        expect(args.type).toBe('set');
-        expect(args.value).toBe('foo');
+      const handler = (sender: ISharedText, args: SourceChange) => {
+        expect(sender).toBe(model.sharedModel);
+        expect(args.sourceChange).toEqual([{ insert: 'foo' }]);
         called = true;
       };
-      model.value.changed.connect(handler);
-      model.value.text = 'foo';
+      model.sharedModel.changed.connect(handler);
+      model.sharedModel.setSource('foo');
       expect(called).toBe(true);
-      model.value.changed.disconnect(handler);
+      model.sharedModel.changed.disconnect(handler);
     });
 
     it('should handle an insert', () => {
       let called = false;
-      const handler = (
-        sender: IObservableString,
-        args: IObservableString.IChangedArgs
-      ) => {
-        expect(args.type).toBe('insert');
-        expect(args.value).toBe('foo');
+      const handler = (sender: ISharedText, args: SourceChange) => {
+        expect(args.sourceChange).toEqual([{ insert: 'foo' }]);
         called = true;
       };
-      model.value.changed.connect(handler);
-      model.value.insert(0, 'foo');
+      model.sharedModel.changed.connect(handler);
+      model.sharedModel.updateSource(0, 0, 'foo');
       expect(called).toBe(true);
-      model.value.changed.disconnect(handler);
+      model.sharedModel.changed.disconnect(handler);
     });
 
     it('should handle a remove', () => {
       let called = false;
-      model.value.text = 'foo';
-      const handler = (
-        sender: IObservableString,
-        args: IObservableString.IChangedArgs
-      ) => {
-        expect(args.type).toBe('remove');
-        expect(args.value).toBe('f');
+      model.sharedModel.setSource('foo');
+      const handler = (sender: ISharedText, args: SourceChange) => {
+        expect(args.sourceChange).toEqual([{ delete: 1 }]);
         called = true;
       };
-      model.value.changed.connect(handler);
-      model.value.remove(0, 1);
+      model.sharedModel.changed.connect(handler);
+      model.sharedModel.updateSource(0, 1);
       expect(called).toBe(true);
-      model.value.changed.disconnect(handler);
+      model.sharedModel.changed.disconnect(handler);
     });
   });
 
@@ -120,12 +113,6 @@ describe('CodeEditor.Model', () => {
     });
   });
 
-  describe('#modelDB', () => {
-    it('should get the modelDB object associated with the model', () => {
-      expect(model.modelDB.has('value')).toBe(true);
-    });
-  });
-
   describe('#isDisposed', () => {
     it('should test whether the model is disposed', () => {
       expect(model.isDisposed).toBe(false);
diff --git a/packages/codeeditor/test/jsoneditor.spec.ts b/packages/codeeditor/test/jsoneditor.spec.ts
index fbc6a53c80ee..8374d7cf88f0 100644
--- a/packages/codeeditor/test/jsoneditor.spec.ts
+++ b/packages/codeeditor/test/jsoneditor.spec.ts
@@ -1,10 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JSONEditor } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditorFactory } from '@jupyterlab/codemirror';
+import { CodeEditor, JSONEditor } from '@jupyterlab/codeeditor';
 import { ObservableJSON } from '@jupyterlab/observables';
-import { framePromise } from '@jupyterlab/testutils';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { simulate } from 'simulate-event';
@@ -43,8 +41,20 @@ class LogEditor extends JSONEditor {
 describe('codeeditor', () => {
   describe('JSONEditor', () => {
     let editor: LogEditor;
-    const editorServices = new CodeMirrorEditorFactory();
-    const editorFactory = editorServices.newInlineEditor.bind(editorServices);
+    const editorFactory: CodeEditor.Factory = ({ model }) => {
+      let _hasFocus = false;
+      return {
+        dispose: jest.fn(),
+        focus: () => {
+          _hasFocus = true;
+        },
+        hasFocus: () => _hasFocus,
+        model,
+        refresh: jest.fn(),
+        setCursorPosition: jest.fn(),
+        setOption: jest.fn()
+      } as any;
+    };
 
     beforeEach(() => {
       editor = new LogEditor({ editorFactory });
@@ -106,9 +116,9 @@ describe('codeeditor', () => {
 
       it('should update the text area value', () => {
         const model = editor.model;
-        expect(model.value.text).toBe('No data!');
+        expect(model.sharedModel.getSource()).toBe('');
         editor.source = new ObservableJSON();
-        expect(model.value.text).toBe('{}');
+        expect(model.sharedModel.getSource()).toBe('{}');
       });
     });
 
@@ -116,7 +126,7 @@ describe('codeeditor', () => {
       it('should test whether the editor value is dirty', () => {
         expect(editor.isDirty).toBe(false);
         Widget.attach(editor, document.body);
-        editor.model.value.text = 'a';
+        editor.model.sharedModel.setSource('a');
         expect(editor.isDirty).toBe(true);
       });
 
@@ -140,23 +150,23 @@ describe('codeeditor', () => {
 
     describe('model.value.changed', () => {
       it('should add the error flag if invalid JSON', () => {
-        editor.model.value.text = 'foo';
+        editor.model.sharedModel.setSource('foo');
         expect(editor.hasClass('jp-mod-error')).toBe(true);
       });
 
       it('should show the commit button if the value has changed', () => {
-        editor.model.value.text = '{"foo": 2}';
-        editor.model.value.text = '{"foo": 1}';
+        editor.model.sharedModel.setSource('{"foo": 2}');
+        editor.model.sharedModel.setSource('{"foo": 1}');
         expect(editor.commitButtonNode.hidden).toBe(false);
       });
 
       it('should not show the commit button if the value is invalid', () => {
-        editor.model.value.text = 'foo';
+        editor.model.sharedModel.setSource('foo');
         expect(editor.commitButtonNode.hidden).toBe(true);
       });
 
       it('should show the revert button if the value has changed', () => {
-        editor.model.value.text = 'foo';
+        editor.model.sharedModel.setSource('foo');
         expect(editor.revertButtonNode.hidden).toBe(false);
       });
     });
@@ -178,19 +188,19 @@ describe('codeeditor', () => {
           editor.editor.focus();
           editor.source.set('foo', 1);
           const model = editor.model;
-          expect(model.value.text).toBe('{}');
+          expect(model.sharedModel.getSource()).toBe('{}');
           simulate(editor.editorHostNode, 'blur');
-          expect(model.value.text).toBe('{\n    "foo": 1\n}');
+          expect(model.sharedModel.getSource()).toBe('{\n    "foo": 1\n}');
         });
 
         it('should not revert to current data if there was a change', () => {
           editor.source = new ObservableJSON();
-          editor.model.value.text = 'foo';
+          editor.model.sharedModel.setSource('foo');
           editor.source.set('foo', 1);
           const model = editor.model;
-          expect(model.value.text).toBe('foo');
+          expect(model.sharedModel.getSource()).toBe('foo');
           simulate(editor.editorHostNode, 'blur');
-          expect(model.value.text).toBe('foo');
+          expect(model.sharedModel.getSource()).toBe('foo');
           expect(editor.commitButtonNode.hidden).toBe(true);
           expect(editor.revertButtonNode.hidden).toBe(false);
         });
@@ -204,17 +214,19 @@ describe('codeeditor', () => {
 
         it('should revert the current data', () => {
           editor.source = new ObservableJSON();
-          editor.model.value.text = 'foo';
+          editor.model.sharedModel.setSource('foo');
           simulate(editor.revertButtonNode, 'click');
-          expect(editor.model.value.text).toBe('{}');
+          expect(editor.model.sharedModel.getSource()).toBe('{}');
         });
 
         it('should handle programmatic changes', () => {
           editor.source = new ObservableJSON();
-          editor.model.value.text = 'foo';
+          editor.model.sharedModel.setSource('foo');
           editor.source.set('foo', 1);
           simulate(editor.revertButtonNode, 'click');
-          expect(editor.model.value.text).toBe('{\n    "foo": 1\n}');
+          expect(editor.model.sharedModel.getSource()).toBe(
+            '{\n    "foo": 1\n}'
+          );
         });
 
         it('should handle click events on the commit button', () => {
@@ -224,70 +236,76 @@ describe('codeeditor', () => {
 
         it('should bail if it is not valid JSON', () => {
           editor.source = new ObservableJSON();
-          editor.model.value.text = 'foo';
+          editor.model.sharedModel.setSource('foo');
           editor.source.set('foo', 1);
           simulate(editor.commitButtonNode, 'click');
-          expect(editor.model.value.text).toBe('foo');
+          expect(editor.model.sharedModel.getSource()).toBe('foo');
         });
 
         it('should override a key that was set programmatically', () => {
           editor.source = new ObservableJSON();
-          editor.model.value.text = '{"foo": 2}';
+          editor.model.sharedModel.setSource('{"foo": 2}');
           editor.source.set('foo', 1);
           simulate(editor.commitButtonNode, 'click');
-          expect(editor.model.value.text).toBe('{\n    "foo": 2\n}');
+          expect(editor.model.sharedModel.getSource()).toBe(
+            '{\n    "foo": 2\n}'
+          );
         });
 
         it('should allow a programmatic key to update', () => {
           editor.source = new ObservableJSON();
           editor.source.set('foo', 1);
           editor.source.set('bar', 1);
-          editor.model.value.text = '{"foo":1, "bar": 2}';
+          editor.model.sharedModel.setSource('{"foo":1, "bar": 2}');
           editor.source.set('foo', 2);
           simulate(editor.commitButtonNode, 'click');
           const expected = '{\n    "foo": 2,\n    "bar": 2\n}';
-          expect(editor.model.value.text).toBe(expected);
+          expect(editor.model.sharedModel.getSource()).toBe(expected);
         });
 
         it('should allow a key to be added by the user', () => {
           editor.source = new ObservableJSON();
           editor.source.set('foo', 1);
           editor.source.set('bar', 1);
-          editor.model.value.text = '{"foo":1, "bar": 2, "baz": 3}';
+          editor.model.sharedModel.setSource('{"foo":1, "bar": 2, "baz": 3}');
           editor.source.set('foo', 2);
           simulate(editor.commitButtonNode, 'click');
           const value = '{\n    "foo": 2,\n    "bar": 2,\n    "baz": 3\n}';
-          expect(editor.model.value.text).toBe(value);
+          expect(editor.model.sharedModel.getSource()).toBe(value);
         });
 
         it('should allow a key to be removed by the user', () => {
           editor.source = new ObservableJSON();
           editor.source.set('foo', 1);
           editor.source.set('bar', 1);
-          editor.model.value.text = '{"foo": 1}';
+          editor.model.sharedModel.setSource('{"foo": 1}');
           simulate(editor.commitButtonNode, 'click');
-          expect(editor.model.value.text).toBe('{\n    "foo": 1\n}');
+          expect(editor.model.sharedModel.getSource()).toBe(
+            '{\n    "foo": 1\n}'
+          );
         });
 
         it('should allow a key to be removed programmatically that was not set by the user', () => {
           editor.source = new ObservableJSON();
           editor.source.set('foo', 1);
           editor.source.set('bar', 1);
-          editor.model.value.text = '{"foo": 1, "bar": 3}';
+          editor.model.sharedModel.setSource('{"foo": 1, "bar": 3}');
           editor.source.delete('foo');
           simulate(editor.commitButtonNode, 'click');
-          expect(editor.model.value.text).toBe('{\n    "bar": 3\n}');
+          expect(editor.model.sharedModel.getSource()).toBe(
+            '{\n    "bar": 3\n}'
+          );
         });
 
         it('should keep a key that was removed programmatically that was changed by the user', () => {
           editor.source = new ObservableJSON();
           editor.source.set('foo', 1);
           editor.source.set('bar', 1);
-          editor.model.value.text = '{"foo": 2, "bar": 3}';
+          editor.model.sharedModel.setSource('{"foo": 2, "bar": 3}');
           editor.source.set('foo', null);
           simulate(editor.commitButtonNode, 'click');
           const expected = '{\n    "foo": 2,\n    "bar": 3\n}';
-          expect(editor.model.value.text).toBe(expected);
+          expect(editor.model.sharedModel.getSource()).toBe(expected);
         });
       });
     });
@@ -306,18 +324,6 @@ describe('codeeditor', () => {
       });
     });
 
-    describe('#onAfterShow()', () => {
-      it('should update the editor', async () => {
-        editor.hide();
-        Widget.attach(editor, document.body);
-        editor.show();
-        await framePromise();
-        expect(editor.methods).toEqual(
-          expect.arrayContaining(['onUpdateRequest'])
-        );
-      });
-    });
-
     describe('#onBeforeDetach()', () => {
       it('should remove event listeners', () => {
         Widget.attach(editor, document.body);
@@ -337,24 +343,24 @@ describe('codeeditor', () => {
       it('should update the value', () => {
         editor.source = new ObservableJSON();
         editor.source.set('foo', 1);
-        expect(editor.model.value.text).toBe('{\n    "foo": 1\n}');
+        expect(editor.model.sharedModel.getSource()).toBe('{\n    "foo": 1\n}');
       });
 
       it('should bail if the input is dirty', () => {
         Widget.attach(editor, document.body);
         editor.source = new ObservableJSON();
-        editor.model.value.text = 'ha';
+        editor.model.sharedModel.setSource('ha');
         editor.source.set('foo', 2);
-        expect(editor.model.value.text).toBe('ha');
+        expect(editor.model.sharedModel.getSource()).toBe('ha');
       });
 
       it('should bail if the input is focused', () => {
         Widget.attach(editor, document.body);
-        editor.model.value.text = '{}';
+        editor.model.sharedModel.setSource('{}');
         editor.source = new ObservableJSON();
         editor.editor.focus();
         editor.source.set('foo', 2);
-        expect(editor.model.value.text).toBe('{}');
+        expect(editor.model.sharedModel.getSource()).toBe('{}');
       });
     });
   });
diff --git a/packages/codeeditor/tsconfig.json b/packages/codeeditor/tsconfig.json
index ef1859393688..a1b61b1b79a5 100644
--- a/packages/codeeditor/tsconfig.json
+++ b/packages/codeeditor/tsconfig.json
@@ -16,7 +16,7 @@
       "path": "../observables"
     },
     {
-      "path": "../shared-models"
+      "path": "../statusbar"
     },
     {
       "path": "../translation"
diff --git a/packages/codeeditor/tsconfig.test.json b/packages/codeeditor/tsconfig.test.json
index 695479c3ca6a..cf83def5fd55 100644
--- a/packages/codeeditor/tsconfig.test.json
+++ b/packages/codeeditor/tsconfig.test.json
@@ -12,7 +12,7 @@
       "path": "../observables"
     },
     {
-      "path": "../shared-models"
+      "path": "../statusbar"
     },
     {
       "path": "../translation"
@@ -24,25 +24,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../shared-models"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/codemirror-extension/package.json b/packages/codemirror-extension/package.json
index 55d872df3ddc..2a0ee1df4eaa 100644
--- a/packages/codemirror-extension/package.json
+++ b/packages/codemirror-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/codemirror-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - CodeMirror Provider Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,21 +38,28 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "codemirror": "~5.61.0"
+    "@codemirror/lang-markdown": "^6.1.1",
+    "@codemirror/language": "^6.6.0",
+    "@codemirror/legacy-modes": "^6.3.2",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "@rjsf/utils": "^5.1.0",
+    "@rjsf/validator-ajv8": "^5.1.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
+    "@types/react": "^18.0.26",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/codemirror-extension/schema/commands.json b/packages/codemirror-extension/schema/commands.json
deleted file mode 100644
index aee0ec9849e9..000000000000
--- a/packages/codemirror-extension/schema/commands.json
+++ /dev/null
@@ -1,241 +0,0 @@
-{
-  "jupyter.lab.setting-icon": "ui-components:text-editor",
-  "jupyter.lab.setting-icon-label": "CodeMirror",
-  "jupyter.lab.menus": {
-    "main": [
-      {
-        "id": "jp-mainmenu-view",
-        "items": [
-          {
-            "type": "separator",
-            "rank": 40
-          },
-          {
-            "type": "submenu",
-            "submenu": {
-              "id": "jp-mainmenu-view-codemirror-theme",
-              "label": "Text Editor Syntax Highlighting"
-            },
-            "rank": 40
-          },
-          {
-            "type": "separator",
-            "rank": 40
-          }
-        ]
-      },
-      {
-        "id": "jp-mainmenu-settings",
-        "items": [
-          {
-            "type": "submenu",
-            "submenu": {
-              "id": "jp-mainmenu-view-codemirror-keymap",
-              "label": "Text Editor Key Map",
-              "items": [
-                {
-                  "command": "codemirror:change-keymap",
-                  "args": {
-                    "keyMap": "default"
-                  }
-                },
-                {
-                  "command": "codemirror:change-keymap",
-                  "args": {
-                    "keyMap": "sublime"
-                  }
-                },
-                {
-                  "command": "codemirror:change-keymap",
-                  "args": {
-                    "keyMap": "vim"
-                  }
-                },
-                {
-                  "command": "codemirror:change-keymap",
-                  "args": {
-                    "keyMap": "emacs"
-                  }
-                }
-              ]
-            },
-            "rank": 31
-          },
-          {
-            "type": "submenu",
-            "submenu": {
-              "id": "jp-mainmenu-view-codemirror-theme",
-              "label": "Text Editor Theme",
-              "items": [
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "jupyter"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "default"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "abcdef"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "base16-dark"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "base16-light"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "hopscotch"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "material"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "mbo"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "mdn-like"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "seti"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "solarized dark"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "solarized light"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "the-matrix"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "xq-light"
-                  }
-                },
-                {
-                  "command": "codemirror:change-theme",
-                  "args": {
-                    "theme": "zenburn"
-                  }
-                }
-              ]
-            },
-            "rank": 31
-          },
-          {
-            "type": "separator",
-            "rank": 39
-          }
-        ]
-      }
-    ]
-  },
-  "title": "CodeMirror",
-  "description": "Text editor settings for all CodeMirror editors.",
-  "properties": {
-    "keyMap": {
-      "type": "string",
-      "title": "Key Map",
-      "description": "Configures the keymap to use",
-      "default": "default"
-    },
-    "theme": {
-      "type": "string",
-      "title": "Theme",
-      "description": "CSS file defining the corresponding\n.cm-s-[name] styles is loaded",
-      "default": "jupyter"
-    },
-    "scrollPastEnd": {
-      "type": "boolean",
-      "title": "Scroll behavior",
-      "description": "Whether to scroll past the end of text document",
-      "default": true
-    },
-    "styleActiveLine": {
-      "oneOf": [
-        {
-          "type": "boolean",
-          "title": "Boolean"
-        },
-        {
-          "type": "object",
-          "properties": {
-            "nonEmpty": {
-              "type": "boolean"
-            }
-          },
-          "title": "Object"
-        }
-      ],
-      "title": "Style Active Line",
-      "description": "Highlight active line. Value is boolean, or { nonEmpty: boolean }.",
-      "default": false
-    },
-    "styleSelectedText": {
-      "type": "boolean",
-      "title": "Style Selected Text",
-      "default": true
-    },
-    "selectionPointer": {
-      "oneOf": [
-        {
-          "type": "boolean",
-          "title": "Use default"
-        },
-        {
-          "type": "string",
-          "title": "Cursor pointer name"
-        }
-      ],
-      "title": "Selection Pointer",
-      "description": "Control the mouse cursor appearance when hovering over the selection. Value is boolean or string, e.g. 'pointer'.",
-      "default": false
-    },
-    "lineWiseCopyCut": {
-      "type": "boolean",
-      "title": "Line-wise Ctrl-C",
-      "description": "When enabled, which is the default, doing copy or cut when there is no selection will copy or cut the whole lines that have cursors on them.",
-      "default": true
-    }
-  },
-  "type": "object"
-}
diff --git a/packages/codemirror-extension/schema/plugin.json b/packages/codemirror-extension/schema/plugin.json
new file mode 100644
index 000000000000..8f0a6d02716f
--- /dev/null
+++ b/packages/codemirror-extension/schema/plugin.json
@@ -0,0 +1,14 @@
+{
+  "jupyter.lab.setting-icon": "ui-components:text-editor",
+  "jupyter.lab.setting-icon-label": "CodeMirror",
+  "title": "CodeMirror",
+  "description": "Text editor settings for all CodeMirror editors.",
+  "properties": {
+    "defaultConfig": {
+      "title": "Default editor configuration",
+      "description": "Base configuration used by all CodeMirror editors.",
+      "type": "object"
+    }
+  },
+  "type": "object"
+}
diff --git a/packages/codemirror-extension/src/index.ts b/packages/codemirror-extension/src/index.ts
index d945b1553225..c31c593cec23 100644
--- a/packages/codemirror-extension/src/index.ts
+++ b/packages/codemirror-extension/src/index.ts
@@ -10,415 +10,101 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-import { IEditorServices } from '@jupyterlab/codeeditor';
-import {
-  CodeMirrorEditor,
-  editorServices,
-  EditorSyntaxStatus,
-  ICodeMirror,
-  Mode
-} from '@jupyterlab/codemirror';
-import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
-import { IEditMenu, IMainMenu } from '@jupyterlab/mainmenu';
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { CodeEditor, IPositionModel, LineCol } from '@jupyterlab/codeeditor';
 import { IStatusBar } from '@jupyterlab/statusbar';
 import { ITranslator } from '@jupyterlab/translation';
-import CodeMirror from 'codemirror';
-
-/**
- * The command IDs used by the codemirror plugin.
- */
-namespace CommandIDs {
-  export const changeKeyMap = 'codemirror:change-keymap';
-
-  export const changeTheme = 'codemirror:change-theme';
-
-  export const changeMode = 'codemirror:change-mode';
-
-  export const find = 'codemirror:find';
-
-  export const goToLine = 'codemirror:go-to-line';
-}
-
-/** The CodeMirror singleton. */
-const codemirrorSingleton: JupyterFrontEndPlugin<ICodeMirror> = {
-  id: '@jupyterlab/codemirror-extension:codemirror',
-  provides: ICodeMirror,
-  activate: activateCodeMirror
-};
-
-/**
- * The editor services.
- */
-const services: JupyterFrontEndPlugin<IEditorServices> = {
-  id: '@jupyterlab/codemirror-extension:services',
-  provides: IEditorServices,
-  activate: activateEditorServices
-};
-
-/**
- * The editor commands.
- */
-const commands: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/codemirror-extension:commands',
-  requires: [IEditorTracker, ISettingRegistry, ITranslator, ICodeMirror],
-  optional: [IMainMenu],
-  activate: activateEditorCommands,
-  autoStart: true
-};
+import { Widget } from '@lumino/widgets';
+import {
+  bindingPlugin,
+  extensionPlugin,
+  languagePlugin,
+  servicesPlugin,
+  themePlugin
+} from './services';
 
 /**
- * The JupyterLab plugin for the EditorSyntax status item.
+ * A plugin providing a line/column status item to the application.
  */
-export const editorSyntaxStatus: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/codemirror-extension:editor-syntax-status',
+export const lineColItem: JupyterFrontEndPlugin<IPositionModel> = {
+  id: '@jupyterlab/codemirror-extension:line-col-status',
+  description: 'Provides the code editor cursor position model.',
   autoStart: true,
-  requires: [IEditorTracker, ILabShell, ITranslator],
-  optional: [IStatusBar],
+  requires: [ITranslator],
+  optional: [ILabShell, IStatusBar],
+  provides: IPositionModel,
   activate: (
     app: JupyterFrontEnd,
-    tracker: IEditorTracker,
-    labShell: ILabShell,
     translator: ITranslator,
+    labShell: ILabShell | null,
     statusBar: IStatusBar | null
-  ) => {
-    if (!statusBar) {
-      // Automatically disable if statusbar missing
-      return;
-    }
-    const item = new EditorSyntaxStatus({ commands: app.commands, translator });
-    labShell.currentChanged.connect(() => {
-      const current = labShell.currentWidget;
-      if (current && tracker.has(current) && item.model) {
-        item.model.editor = (current as IDocumentWidget<
-          FileEditor
-        >).content.editor;
-      }
-    });
-    statusBar.registerStatusItem(
-      '@jupyterlab/codemirror-extension:editor-syntax-status',
-      {
-        item,
-        align: 'left',
-        rank: 0,
-        isActive: () =>
-          !!labShell.currentWidget &&
-          !!tracker.currentWidget &&
-          labShell.currentWidget === tracker.currentWidget
-      }
-    );
-  }
-};
-
-/**
- * Export the plugins as default.
- */
-const plugins: JupyterFrontEndPlugin<any>[] = [
-  commands,
-  services,
-  editorSyntaxStatus,
-  codemirrorSingleton
-];
-export default plugins;
-
-/**
- * The plugin ID used as the key in the setting registry.
- */
-const id = commands.id;
-
-/**
- * Set up the editor services.
- */
-function activateEditorServices(app: JupyterFrontEnd): IEditorServices {
-  CodeMirror.prototype.save = () => {
-    void app.commands.execute('docmanager:save');
-  };
-  return editorServices;
-}
-
-/**
- * Simplest implementation of the CodeMirror singleton provider.
- */
-class CodeMirrorSingleton implements ICodeMirror {
-  get CodeMirror() {
-    return CodeMirror;
-  }
-
-  async ensureVimKeymap() {
-    if (!('Vim' in (CodeMirror as any))) {
-      // @ts-expect-error
-      await import('codemirror/keymap/vim.js');
-    }
-  }
-}
-
-/**
- * Set up the CodeMirror singleton.
- */
-function activateCodeMirror(app: JupyterFrontEnd): ICodeMirror {
-  return new CodeMirrorSingleton();
-}
-
-/**
- * Set up the editor widget menu and commands.
- */
-function activateEditorCommands(
-  app: JupyterFrontEnd,
-  tracker: IEditorTracker,
-  settingRegistry: ISettingRegistry,
-  translator: ITranslator,
-  codeMirror: ICodeMirror,
-  mainMenu: IMainMenu | null
-): void {
-  const trans = translator.load('jupyterlab');
-  const { commands, restored } = app;
-  let {
-    theme,
-    keyMap,
-    scrollPastEnd,
-    styleActiveLine,
-    styleSelectedText,
-    selectionPointer,
-    lineWiseCopyCut
-  } = CodeMirrorEditor.defaultConfig;
-
-  /**
-   * Update the setting values.
-   */
-  async function updateSettings(
-    settings: ISettingRegistry.ISettings
-  ): Promise<void> {
-    keyMap = (settings.get('keyMap').composite as string | null) || keyMap;
-
-    // Lazy loading of vim mode
-    if (keyMap === 'vim') {
-      await codeMirror.ensureVimKeymap();
-    }
-
-    theme = (settings.get('theme').composite as string | null) || theme;
+  ): IPositionModel => {
+    const item = new LineCol(translator);
 
-    // Lazy loading of theme stylesheets
-    if (theme !== 'jupyter' && theme !== 'default') {
-      const filename =
-        theme === 'solarized light' || theme === 'solarized dark'
-          ? 'solarized'
-          : theme;
+    const providers = new Set<
+      (widget: Widget | null) => Promise<CodeEditor.IEditor | null>
+    >();
 
-      await import(`codemirror/theme/${filename}.css`);
+    if (statusBar) {
+      // Add the status item to the status bar.
+      statusBar.registerStatusItem(lineColItem.id, {
+        item,
+        align: 'right',
+        rank: 2,
+        isActive: () => !!item.model.editor
+      });
     }
 
-    scrollPastEnd =
-      (settings.get('scrollPastEnd').composite as boolean | null) ??
-      scrollPastEnd;
-    styleActiveLine =
-      (settings.get('styleActiveLine').composite as
-        | boolean
-        | CodeMirror.StyleActiveLine) ?? styleActiveLine;
-    styleSelectedText =
-      (settings.get('styleSelectedText').composite as boolean) ??
-      styleSelectedText;
-    selectionPointer =
-      (settings.get('selectionPointer').composite as boolean | string) ??
-      selectionPointer;
-    lineWiseCopyCut =
-      (settings.get('lineWiseCopyCut').composite as boolean) ?? lineWiseCopyCut;
-  }
+    const addEditorProvider = (
+      provider: (widget: Widget | null) => Promise<CodeEditor.IEditor | null>
+    ): void => {
+      providers.add(provider);
 
-  /**
-   * Update the settings of the current tracker instances.
-   */
-  function updateTracker(): void {
-    const editorOptions: any = {
-      keyMap,
-      theme,
-      scrollPastEnd,
-      styleActiveLine,
-      styleSelectedText,
-      selectionPointer,
-      lineWiseCopyCut
-    };
-    tracker.forEach(widget => {
-      if (widget.content.editor instanceof CodeMirrorEditor) {
-        widget.content.editor.setOptions(editorOptions);
+      if (app.shell.currentWidget) {
+        updateEditor(app.shell, {
+          newValue: app.shell.currentWidget,
+          oldValue: null
+        });
       }
-    });
-  }
-
-  // Fetch the initial state of the settings.
-  Promise.all([settingRegistry.load(id), restored])
-    .then(async ([settings]) => {
-      await updateSettings(settings);
-      updateTracker();
-      settings.changed.connect(async () => {
-        await updateSettings(settings);
-        updateTracker();
-      });
-    })
-    .catch((reason: Error) => {
-      console.error(reason.message);
-      updateTracker();
-    });
-
-  /**
-   * Handle the settings of new widgets.
-   */
-  tracker.widgetAdded.connect((sender, widget) => {
-    const editorOptions: any = {
-      keyMap,
-      theme,
-      scrollPastEnd,
-      styleActiveLine,
-      styleSelectedText,
-      selectionPointer,
-      lineWiseCopyCut
     };
-    if (widget.content.editor instanceof CodeMirrorEditor) {
-      widget.content.editor.setOptions(editorOptions);
-    }
-  });
-
-  /**
-   * A test for whether the tracker has an active widget.
-   */
-  function isEnabled(): boolean {
-    return (
-      tracker.currentWidget !== null &&
-      tracker.currentWidget === app.shell.currentWidget
-    );
-  }
-
-  /**
-   * Create a menu for the editor.
-   */
-  commands.addCommand(CommandIDs.changeTheme, {
-    label: args =>
-      args.theme === 'default'
-        ? trans.__('codemirror')
-        : trans.__((args.theme as string) ?? theme),
-    execute: args => {
-      const key = 'theme';
-      const value = (theme = (args['theme'] as string) ?? theme);
-
-      return settingRegistry.set(id, key, value).catch((reason: Error) => {
-        console.error(`Failed to set ${id}:${key} - ${reason.message}`);
-      });
-    },
-    isToggled: args => args['theme'] === theme
-  });
-
-  commands.addCommand(CommandIDs.changeKeyMap, {
-    label: args => {
-      const theKeyMap = (args['keyMap'] as string) ?? keyMap;
-      return theKeyMap === 'sublime'
-        ? trans.__('Sublime Text')
-        : trans.__(theKeyMap);
-    },
-    execute: args => {
-      const key = 'keyMap';
-      const value = (keyMap = (args['keyMap'] as string) ?? keyMap);
 
-      return settingRegistry.set(id, key, value).catch((reason: Error) => {
-        console.error(`Failed to set ${id}:${key} - ${reason.message}`);
+    const update = (): void => {
+      updateEditor(app.shell, {
+        oldValue: app.shell.currentWidget,
+        newValue: app.shell.currentWidget
       });
-    },
-    isToggled: args => args['keyMap'] === keyMap
-  });
-
-  commands.addCommand(CommandIDs.find, {
-    label: trans.__('Find…'),
-    execute: () => {
-      const widget = tracker.currentWidget;
-      if (!widget) {
-        return;
-      }
-      const editor = widget.content.editor as CodeMirrorEditor;
-      editor.execCommand('find');
-    },
-    isEnabled
-  });
-
-  commands.addCommand(CommandIDs.goToLine, {
-    label: trans.__('Go to Line…'),
-    execute: args => {
-      const widget = tracker.currentWidget;
-      if (!widget) {
-        return;
-      }
-      const line = args['line'] as number | undefined;
-      const column = args['column'] as number | undefined;
+    };
 
-      const editor = widget.content.editor as CodeMirrorEditor;
-      if (line !== undefined || column !== undefined) {
-        editor.setCursorPosition({
-          line: (line ?? 1) - 1,
-          column: (column ?? 1) - 1
+    function updateEditor(
+      shell: JupyterFrontEnd.IShell,
+      changes: ILabShell.IChangedArgs
+    ) {
+      Promise.all([...providers].map(provider => provider(changes.newValue)))
+        .then(editors => {
+          item.model.editor =
+            editors.filter(editor => editor !== null)[0] ?? null;
+        })
+        .catch(reason => {
+          console.error('Get editors', reason);
         });
-      } else {
-        editor.execCommand('jumpToLine');
-      }
-      editor.focus();
-    },
-    isEnabled
-  });
-
-  commands.addCommand(CommandIDs.changeMode, {
-    label: args => args['name'] as string,
-    execute: args => {
-      const name = args['name'] as string;
-      const widget = tracker.currentWidget;
-      if (name && widget) {
-        const spec = Mode.findByName(name);
-        if (spec) {
-          widget.content.model.mimeType = spec.mime;
-        }
-      }
-    },
-    isEnabled,
-    isToggled: args => {
-      const widget = tracker.currentWidget;
-      if (!widget) {
-        return false;
-      }
-      const mime = widget.content.model.mimeType;
-      const spec = Mode.findByMIME(mime);
-      const name = spec && spec.name;
-      return args['name'] === name;
     }
-  });
-
-  if (mainMenu) {
-    const modeMenu = mainMenu.viewMenu.items.find(
-      item =>
-        item.type === 'submenu' &&
-        item.submenu?.id === 'jp-mainmenu-view-codemirror-theme'
-    )?.submenu;
 
-    if (modeMenu) {
-      Mode.getModeInfo()
-        .sort((a, b) => {
-          const aName = a.name || '';
-          const bName = b.name || '';
-          return aName.localeCompare(bName);
-        })
-        .forEach(spec => {
-          // Avoid mode name with a curse word.
-          if (spec.mode.indexOf('brainf') === 0) {
-            return;
-          }
-          modeMenu.addItem({
-            command: CommandIDs.changeMode,
-            args: { ...spec } as any // TODO: Casting to `any` until lumino typings are fixed
-          });
-        });
+    if (labShell) {
+      labShell.currentChanged.connect(updateEditor);
     }
-    // Add go to line capabilities to the edit menu.
-    mainMenu.editMenu.goToLiners.add({
-      tracker,
-      goToLine: (widget: IDocumentWidget<FileEditor>) => {
-        const editor = widget.content.editor as CodeMirrorEditor;
-        editor.execCommand('jumpToLine');
-      }
-    } as IEditMenu.IGoToLiner<IDocumentWidget<FileEditor>>);
+
+    return { addEditorProvider, update };
   }
-}
+};
+
+/**
+ * Export the plugins as default.
+ */
+const plugins: JupyterFrontEndPlugin<any>[] = [
+  languagePlugin,
+  themePlugin,
+  bindingPlugin,
+  extensionPlugin,
+  servicesPlugin,
+  lineColItem
+];
+export default plugins;
diff --git a/packages/codemirror-extension/src/services.tsx b/packages/codemirror-extension/src/services.tsx
new file mode 100644
index 000000000000..597c214fb866
--- /dev/null
+++ b/packages/codemirror-extension/src/services.tsx
@@ -0,0 +1,264 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { StreamLanguage } from '@codemirror/language';
+import { IYText } from '@jupyter/ydoc';
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import { IEditorServices } from '@jupyterlab/codeeditor';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  EditorThemeRegistry,
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry,
+  IEditorThemeRegistry,
+  parseMathIPython,
+  ybinding
+} from '@jupyterlab/codemirror';
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import {
+  FormComponent,
+  IFormRendererRegistry
+} from '@jupyterlab/ui-components';
+import { JSONExt, ReadonlyJSONValue } from '@lumino/coreutils';
+import type { FieldProps } from '@rjsf/utils';
+import validatorAjv8 from '@rjsf/validator-ajv8';
+import React from 'react';
+
+/**
+ * CodeMirror settings plugin ID
+ */
+const SETTINGS_ID = '@jupyterlab/codemirror-extension:plugin';
+
+/**
+ * CodeMirror language registry provider.
+ */
+export const languagePlugin: JupyterFrontEndPlugin<IEditorLanguageRegistry> = {
+  id: '@jupyterlab/codemirror-extension:languages',
+  description: 'Provides the CodeMirror languages registry.',
+  provides: IEditorLanguageRegistry,
+  optional: [ITranslator],
+  activate: (app: JupyterFrontEnd, translator: ITranslator | null) => {
+    const languages = new EditorLanguageRegistry();
+
+    // Register default languages
+    for (const language of EditorLanguageRegistry.getDefaultLanguages(
+      translator
+    )) {
+      languages.addLanguage(language);
+    }
+
+    // Add Jupyter Markdown flavor here to support
+    // code block highlighting.
+    languages.addLanguage({
+      name: 'ipythongfm',
+      mime: 'text/x-ipythongfm',
+      load: async () => {
+        const [m, tex] = await Promise.all([
+          import('@codemirror/lang-markdown'),
+          import('@codemirror/legacy-modes/mode/stex')
+        ]);
+        return m.markdown({
+          base: m.markdownLanguage,
+          codeLanguages: (info: string) => languages.findBest(info) as any,
+          extensions: [
+            parseMathIPython(StreamLanguage.define(tex.stexMath).parser)
+          ]
+        });
+      }
+    });
+    return languages;
+  }
+};
+
+/**
+ * CodeMirror theme registry provider.
+ */
+export const themePlugin: JupyterFrontEndPlugin<IEditorThemeRegistry> = {
+  id: '@jupyterlab/codemirror-extension:themes',
+  description: 'Provides the CodeMirror theme registry',
+  provides: IEditorThemeRegistry,
+  optional: [ITranslator],
+  activate: (app: JupyterFrontEnd, translator: ITranslator | null) => {
+    const themes = new EditorThemeRegistry();
+    // Register default themes
+    for (const theme of EditorThemeRegistry.getDefaultThemes(translator)) {
+      themes.addTheme(theme);
+    }
+    return themes;
+  }
+};
+
+/**
+ * CodeMirror editor extensions registry provider.
+ */
+export const extensionPlugin: JupyterFrontEndPlugin<IEditorExtensionRegistry> =
+  {
+    id: '@jupyterlab/codemirror-extension:extensions',
+    description: 'Provides the CodeMirror extension factory registry.',
+    provides: IEditorExtensionRegistry,
+    requires: [IEditorThemeRegistry],
+    optional: [ITranslator, ISettingRegistry, IFormRendererRegistry],
+    activate: (
+      app: JupyterFrontEnd,
+      themes: IEditorThemeRegistry,
+      translator: ITranslator | null,
+      settingRegistry: ISettingRegistry | null,
+      formRegistry: IFormRendererRegistry | null
+    ): IEditorExtensionRegistry => {
+      const registry = new EditorExtensionRegistry();
+
+      // Register default extensions
+      for (const extensionFactory of EditorExtensionRegistry.getDefaultExtensions(
+        {
+          themes,
+          translator
+        }
+      )) {
+        registry.addExtension(extensionFactory);
+      }
+
+      if (settingRegistry) {
+        const updateSettings = (settings: ISettingRegistry.ISettings) => {
+          registry.baseConfiguration =
+            (settings.get('defaultConfig').composite as Record<string, any>) ??
+            {};
+        };
+        void Promise.all([
+          settingRegistry.load(SETTINGS_ID),
+          app.restored
+        ]).then(([settings]) => {
+          updateSettings(settings);
+          settings.changed.connect(updateSettings);
+        });
+
+        formRegistry?.addRenderer(`${SETTINGS_ID}.defaultConfig`, {
+          fieldRenderer: (props: FieldProps) => {
+            const properties = React.useMemo(
+              () => registry.settingsSchema,
+              []
+            ) as any;
+            const defaultFormData: Record<string, any> = {};
+            // Only provide customizable options
+            for (const [key, value] of Object.entries(
+              registry.defaultConfiguration
+            )) {
+              if (typeof properties[key] !== 'undefined') {
+                defaultFormData[key] = value;
+              }
+            }
+
+            return (
+              <div className="jp-FormGroup-contentNormal">
+                <h3 className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+                  {props.schema.title}
+                </h3>
+                {props.schema.description && (
+                  <div className="jp-FormGroup-description">
+                    {props.schema.description}
+                  </div>
+                )}
+                <FormComponent
+                  schema={{
+                    title: props.schema.title,
+                    description: props.schema.description,
+                    type: 'object',
+                    properties,
+                    additionalProperties: false
+                  }}
+                  validator={validatorAjv8}
+                  formData={{ ...defaultFormData, ...props.formData }}
+                  formContext={{ defaultFormData }}
+                  liveValidate
+                  onChange={e => {
+                    // Only save non-default values
+                    const nonDefault: Record<string, ReadonlyJSONValue> = {};
+                    for (const [property, value] of Object.entries(
+                      e.formData ?? {}
+                    )) {
+                      const default_ = defaultFormData[property];
+                      if (
+                        default_ === undefined ||
+                        !JSONExt.deepEqual(value, default_)
+                      ) {
+                        nonDefault[property] = value;
+                      }
+                    }
+                    props.onChange(nonDefault);
+                  }}
+                  tagName="div"
+                  translator={translator ?? nullTranslator}
+                />
+              </div>
+            );
+          }
+        });
+      }
+
+      return registry;
+    }
+  };
+
+/**
+ * CodeMirror shared model binding provider.
+ */
+export const bindingPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/codemirror-extension:binding',
+  description:
+    'Register the CodeMirror extension factory binding the editor and the shared model.',
+  autoStart: true,
+  requires: [IEditorExtensionRegistry],
+  activate: (app: JupyterFrontEnd, extensions: IEditorExtensionRegistry) => {
+    extensions.addExtension({
+      name: 'shared-model-binding',
+      factory: options => {
+        const sharedModel = options.model.sharedModel as IYText;
+        return EditorExtensionRegistry.createImmutableExtension(
+          ybinding({
+            ytext: sharedModel.ysource,
+            undoManager: sharedModel.undoManager ?? undefined
+          })
+        );
+      }
+    });
+  }
+};
+
+/**
+ * The editor services.
+ */
+export const servicesPlugin: JupyterFrontEndPlugin<IEditorServices> = {
+  id: '@jupyterlab/codemirror-extension:services',
+  description: 'Provides the service to instantiate CodeMirror editors.',
+  provides: IEditorServices,
+  requires: [
+    IEditorLanguageRegistry,
+    IEditorExtensionRegistry,
+    IEditorThemeRegistry
+  ],
+  optional: [ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    languages: IEditorLanguageRegistry,
+    extensions: IEditorExtensionRegistry,
+    translator: ITranslator | null
+  ): IEditorServices => {
+    const factory = new CodeMirrorEditorFactory({
+      extensions,
+      languages,
+      translator: translator ?? nullTranslator
+    });
+    return {
+      factoryService: factory,
+      mimeTypeService: new CodeMirrorMimeTypeService(languages)
+    };
+  }
+};
diff --git a/packages/codemirror-extension/style/index.css b/packages/codemirror-extension/style/index.css
index 15f3b3091d80..c5a5707093b4 100644
--- a/packages/codemirror-extension/style/index.css
+++ b/packages/codemirror-extension/style/index.css
@@ -4,10 +4,9 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@jupyterlab/codeeditor/style/index.css');
+@import url('~@lumino/widgets/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~@jupyterlab/codemirror/style/index.css');
-@import url('~@jupyterlab/docregistry/style/index.css');
+@import url('~@jupyterlab/codeeditor/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
-@import url('~@jupyterlab/fileeditor/style/index.css');
-@import url('~@jupyterlab/mainmenu/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
diff --git a/packages/codemirror-extension/style/index.js b/packages/codemirror-extension/style/index.js
index 7192afe14f84..2c0c81c0597b 100644
--- a/packages/codemirror-extension/style/index.js
+++ b/packages/codemirror-extension/style/index.js
@@ -4,10 +4,9 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@jupyterlab/codeeditor/style/index.js';
+import '@lumino/widgets/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
-import '@jupyterlab/codemirror/style/index.js';
-import '@jupyterlab/docregistry/style/index.js';
+import '@jupyterlab/codeeditor/style/index.js';
 import '@jupyterlab/application/style/index.js';
-import '@jupyterlab/fileeditor/style/index.js';
-import '@jupyterlab/mainmenu/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
diff --git a/packages/codemirror-extension/tsconfig.json b/packages/codemirror-extension/tsconfig.json
index f506129c2955..99410f6dbe92 100644
--- a/packages/codemirror-extension/tsconfig.json
+++ b/packages/codemirror-extension/tsconfig.json
@@ -15,15 +15,6 @@
     {
       "path": "../codemirror"
     },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../mainmenu"
-    },
     {
       "path": "../settingregistry"
     },
@@ -32,6 +23,9 @@
     },
     {
       "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/codemirror/.vscode/launch.json b/packages/codemirror/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/codemirror/.vscode/launch.json
+++ b/packages/codemirror/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/codemirror/babel.config.js b/packages/codemirror/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/codemirror/babel.config.js
+++ b/packages/codemirror/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/codemirror/jest.config.js b/packages/codemirror/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/codemirror/jest.config.js
+++ b/packages/codemirror/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/codemirror/package.json b/packages/codemirror/package.json
index e128e9f904a1..f745b1a070bc 100644
--- a/packages/codemirror/package.json
+++ b/packages/codemirror/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/codemirror",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - CodeMirror Editor Provider",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -20,65 +20,71 @@
     "lib": "lib/"
   },
   "files": [
-    "lib/*.d.ts",
-    "lib/*.js.map",
-    "lib/*.js",
+    "lib/**/*.{d.ts,js,js.map}",
     "style/*.css",
     "typings/codemirror/*.d.ts",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:test": "tsc --build tsconfig.test.json",
+    "build:test": "lezer-generator test/foo.grammar -o test/foo.js && tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "codemirror": "~5.61.0",
-    "react": "^17.0.1",
-    "y-codemirror": "^3.0.1"
+    "@codemirror/autocomplete": "^6.5.1",
+    "@codemirror/commands": "^6.2.3",
+    "@codemirror/lang-cpp": "^6.0.2",
+    "@codemirror/lang-css": "^6.1.1",
+    "@codemirror/lang-html": "^6.4.3",
+    "@codemirror/lang-java": "^6.0.1",
+    "@codemirror/lang-javascript": "^6.1.7",
+    "@codemirror/lang-json": "^6.0.1",
+    "@codemirror/lang-markdown": "^6.1.1",
+    "@codemirror/lang-php": "^6.0.1",
+    "@codemirror/lang-python": "^6.1.3",
+    "@codemirror/lang-rust": "^6.0.1",
+    "@codemirror/lang-sql": "^6.4.1",
+    "@codemirror/lang-wast": "^6.0.1",
+    "@codemirror/lang-xml": "^6.0.2",
+    "@codemirror/language": "^6.6.0",
+    "@codemirror/legacy-modes": "^6.3.2",
+    "@codemirror/search": "^6.3.0",
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lezer/common": "^1.0.2",
+    "@lezer/generator": "^1.2.2",
+    "@lezer/highlight": "^1.1.4",
+    "@lezer/markdown": "^1.0.2",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "yjs": "^13.5.40"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/codemirror": "^0.0.109",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@lezer/generator": "^1.2.2",
+    "@lezer/lr": "^1.3.3",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
   },
-  "jupyterlab": {
-    "extraStyles": {
-      "codemirror": [
-        "lib/codemirror.css",
-        "addon/dialog/dialog.css",
-        "addon/fold/foldgutter.css"
-      ]
-    }
-  },
   "styleModule": "style/index.js"
 }
diff --git a/packages/codemirror/src/codemirror-ipython.ts b/packages/codemirror/src/codemirror-ipython.ts
deleted file mode 100644
index 23b1ab446d92..000000000000
--- a/packages/codemirror/src/codemirror-ipython.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import CodeMirror from 'codemirror';
-import 'codemirror/mode/meta';
-import 'codemirror/mode/python/python';
-
-/**
- * Define an IPython codemirror mode.
- *
- * It is a slightly altered Python Mode with a `?` operator.
- */
-CodeMirror.defineMode(
-  'ipython',
-  (config: CodeMirror.EditorConfiguration, modeOptions?: any) => {
-    const pythonConf: any = {};
-    for (const prop in modeOptions) {
-      if (modeOptions.hasOwnProperty(prop)) {
-        pythonConf[prop] = modeOptions[prop];
-      }
-    }
-    pythonConf.name = 'python';
-    pythonConf.singleOperators = new RegExp('^[\\+\\-\\*/%&|@\\^~<>!\\?]');
-    pythonConf.identifiers = new RegExp(
-      '^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*'
-    );
-    return CodeMirror.getMode(config, pythonConf);
-  },
-  'python'
-);
-
-CodeMirror.defineMIME('text/x-ipython', 'ipython');
-CodeMirror.modeInfo.push({
-  ext: [],
-  mime: 'text/x-ipython',
-  mode: 'ipython',
-  name: 'ipython'
-});
diff --git a/packages/codemirror/src/codemirror-ipythongfm.ts b/packages/codemirror/src/codemirror-ipythongfm.ts
deleted file mode 100644
index 6d925ae03890..000000000000
--- a/packages/codemirror/src/codemirror-ipythongfm.ts
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import CodeMirror from 'codemirror';
-import 'codemirror/addon/mode/multiplex';
-import 'codemirror/mode/gfm/gfm';
-import 'codemirror/mode/stex/stex';
-
-/**
- * Define an IPython GFM (GitHub Flavored Markdown) mode.
- *
- * Is just a slightly altered GFM Mode with support for LaTeX.
- * LaTeX support was supported by Codemirror GFM as of
- *   https://github.com/codemirror/CodeMirror/pull/567
- *  But was later removed in
- *   https://github.com/codemirror/CodeMirror/commit/d9c9f1b1ffe984aee41307f3e927f80d1f23590c
- */
-CodeMirror.defineMode(
-  'ipythongfm',
-  (config: CodeMirror.EditorConfiguration, modeOptions?: any) => {
-    const gfmMode = CodeMirror.getMode(config, {
-      name: 'gfm',
-      // Override list3 with an under-used token, rather than `keyword`
-      tokenTypeOverrides: { list3: 'string-2' }
-    });
-    const texMode = CodeMirror.getMode(config, {
-      name: 'stex',
-      inMathMode: true
-    });
-
-    return CodeMirror.multiplexingMode(
-      gfmMode,
-      // force parsing inline code and code blocks with gfmMode to prevent
-      // parsing them as tex see:
-      // https://github.com/jupyterlab/jupyterlab/issues/6774
-      {
-        open: '<code>',
-        close: '</code>',
-        mode: gfmMode,
-        parseDelimiters: true
-      },
-      {
-        open: '<pre>',
-        close: '</pre>',
-        mode: gfmMode,
-        parseDelimiters: true
-      },
-      {
-        open: '```',
-        close: '```',
-        mode: gfmMode,
-        parseDelimiters: true
-      },
-      {
-        open: '`',
-        close: '`',
-        mode: gfmMode,
-        parseDelimiters: true
-      },
-      // only if we did not match a code element or block,
-      // then try do parse using the tex mode
-      {
-        open: '$$',
-        close: '$$',
-        mode: texMode,
-        delimStyle: 'delimit'
-      },
-      {
-        // `$math mode$` is only matched if both opening
-        // and closing $ are in the same line
-        open: /\$(?=.*\$)/,
-        close: '$',
-        mode: texMode,
-        delimStyle: 'delimit'
-      },
-      {
-        open: '\\(',
-        close: '\\)',
-        mode: texMode,
-        delimStyle: 'delimit'
-      },
-      {
-        open: '\\[',
-        close: '\\]',
-        mode: texMode,
-        delimStyle: 'delimit'
-      }
-      // .. more multiplexed styles can follow here
-    );
-  },
-  'gfm'
-);
-
-CodeMirror.defineMIME('text/x-ipythongfm', 'ipythongfm');
-CodeMirror.modeInfo.push({
-  ext: [],
-  mime: 'text/x-ipythongfm',
-  mode: 'ipythongfm',
-  name: 'ipythongfm'
-});
diff --git a/packages/codemirror/src/commands.ts b/packages/codemirror/src/commands.ts
new file mode 100644
index 000000000000..fb9ef09fbf36
--- /dev/null
+++ b/packages/codemirror/src/commands.ts
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { indentMore, insertTab } from '@codemirror/commands';
+import { EditorState, Transaction } from '@codemirror/state';
+
+/**
+ * CodeMirror commands namespace
+ */
+export namespace StateCommands {
+  /**
+   * Indent or insert a tab as appropriate.
+   */
+  export function indentMoreOrInsertTab(target: {
+    state: EditorState;
+    dispatch: (transaction: Transaction) => void;
+  }): boolean {
+    const arg = { state: target.state, dispatch: target.dispatch };
+    const from = target.state.selection.main.from;
+    const to = target.state.selection.main.to;
+    if (from != to) {
+      return indentMore(arg);
+    }
+    const line = target.state.doc.lineAt(from);
+    const before = target.state.doc.slice(line.from, from).toString();
+    if (/^\s*$/.test(before)) {
+      return indentMore(arg);
+    } else {
+      return insertTab(arg);
+    }
+  }
+}
diff --git a/packages/codemirror/src/editor.ts b/packages/codemirror/src/editor.ts
index 3461ced01610..d34670281e1e 100644
--- a/packages/codemirror/src/editor.ts
+++ b/packages/codemirror/src/editor.ts
@@ -1,74 +1,36 @@
+/* eslint-disable @typescript-eslint/ban-types */
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-// / <reference types="codemirror"/>
-// / <reference types="codemirror/searchcursor"/>
 
-import { showDialog } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
-import {
-  ICollaborator,
-  IObservableMap,
-  IObservableString
-} from '@jupyterlab/observables';
-import * as models from '@jupyterlab/shared-models';
+import { insertNewlineAndIndent } from '@codemirror/commands';
+import { ensureSyntaxTree } from '@codemirror/language';
 import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { ArrayExt } from '@lumino/algorithm';
-import { JSONExt, UUID } from '@lumino/coreutils';
-import { DisposableDelegate, IDisposable } from '@lumino/disposable';
-import { Poll } from '@lumino/polling';
+  Compartment,
+  EditorSelection,
+  EditorState,
+  Extension,
+  Prec,
+  StateCommand,
+  Text
+} from '@codemirror/state';
+import { Command, EditorView, ViewUpdate } from '@codemirror/view';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import { SyntaxNodeRef } from '@lezer/common';
+import { UUID } from '@lumino/coreutils';
 import { Signal } from '@lumino/signaling';
-import CodeMirror from 'codemirror';
-import 'codemirror/addon/comment/comment.js';
-import 'codemirror/addon/display/rulers.js';
-import 'codemirror/addon/edit/closebrackets.js';
-import 'codemirror/addon/edit/matchbrackets.js';
-import 'codemirror/addon/fold/brace-fold.js';
-import 'codemirror/addon/fold/comment-fold.js';
-import 'codemirror/addon/fold/foldcode.js';
-import 'codemirror/addon/fold/foldgutter.js';
-import 'codemirror/addon/fold/indent-fold.js';
-import 'codemirror/addon/fold/markdown-fold.js';
-import 'codemirror/addon/fold/xml-fold.js';
-import 'codemirror/addon/mode/simple';
-import 'codemirror/addon/scroll/scrollpastend.js';
-import 'codemirror/addon/search/jump-to-line';
-import 'codemirror/addon/search/search';
-import 'codemirror/addon/search/searchcursor';
-import 'codemirror/addon/selection/active-line';
-import 'codemirror/addon/selection/mark-selection';
-import 'codemirror/addon/selection/selection-pointer';
-import 'codemirror/addon/edit/trailingspace.js';
-import 'codemirror/keymap/emacs.js';
-import 'codemirror/keymap/sublime.js';
-import { CodemirrorBinding } from 'y-codemirror';
-import { Mode } from './mode';
-
-// import 'codemirror/keymap/vim.js';  lazy loading of vim mode is available in ../codemirror-extension/index.ts
+import { ExtensionsHandler } from './extension';
+import { EditorLanguageRegistry } from './language';
+import {
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry,
+  IExtensionsHandler
+} from './token';
 
 /**
  * The class name added to CodeMirrorWidget instances.
  */
 const EDITOR_CLASS = 'jp-CodeMirrorEditor';
 
-/**
- * The class name added to read only cell editor widgets.
- */
-const READ_ONLY_CLASS = 'jp-mod-readOnly';
-
-/**
- * The class name for the hover box for collaborator cursors.
- */
-const COLLABORATOR_CURSOR_CLASS = 'jp-CollaboratorCursor';
-
-/**
- * The class name for the hover box for collaborator cursors.
- */
-const COLLABORATOR_HOVER_CLASS = 'jp-CollaboratorCursor-hover';
-
 /**
  * The key code for the up arrow key.
  */
@@ -79,15 +41,6 @@ const UP_ARROW = 38;
  */
 const DOWN_ARROW = 40;
 
-/**
- * The time that a collaborator name hover persists.
- */
-const HOVER_TIMEOUT = 1000;
-
-// @todo Remove the duality of having a modeldb and a y-codemirror
-// binding as it just introduces a lot of additional complexity without gaining anything.
-const USE_YCODEMIRROR_BINDING = true;
-
 /**
  * CodeMirror editor.
  */
@@ -96,9 +49,13 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Construct a CodeMirror editor.
    */
   constructor(options: CodeMirrorEditor.IOptions) {
+    this._languages = options.languages ?? new EditorLanguageRegistry();
+    this._configurator =
+      options.extensionsRegistry?.createNew({
+        ...options,
+        inline: options.inline ?? false
+      }) ?? new ExtensionsHandler();
     const host = (this.host = options.host);
-    this.translator = options.translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
 
     host.classList.add(EDITOR_CLASS);
     host.classList.add('jp-Editor');
@@ -106,119 +63,43 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     host.addEventListener('blur', this, true);
     host.addEventListener('scroll', this, true);
 
-    this._uuid = options.uuid || UUID.uuid4();
-
-    // Handle selection style.
-    const style = options.selectionStyle || {};
-    this._selectionStyle = {
-      ...CodeEditor.defaultSelectionStyle,
-      ...(style as CodeEditor.ISelectionStyle)
-    };
+    this._uuid = options.uuid ?? UUID.uuid4();
 
     const model = (this._model = options.model);
-    const config = options.config || {};
-    const fullConfig = (this._config = {
-      ...CodeMirrorEditor.defaultConfig,
-      ...config
-    });
-    const editor = (this._editor = Private.createEditor(host, fullConfig));
-    this._initializeEditorBinding();
-    // every time the model is switched, we need to re-initialize the editor binding
-    this.model.sharedModelSwitched.connect(this._initializeEditorBinding, this);
-
-    const doc = editor.getDoc();
 
-    // Handle initial values for text, mimetype, and selections.
-    if (!USE_YCODEMIRROR_BINDING) {
-      doc.setValue(model.value.text);
-    }
-    this._onMimeTypeChanged();
-    this._onCursorActivity();
-    this._poll = new Poll({
-      factory: async () => {
-        this._checkSync();
-      },
-      frequency: { interval: 3000, backoff: false },
-      standby: () => {
-        // If changed, only stand by when hidden, otherwise always stand by.
-        return this._lastChange ? 'when-hidden' : true;
+    // Default keydown handler - it will have low priority
+    const onKeyDown = EditorView.domEventHandlers({
+      keydown: (event: KeyboardEvent, view: EditorView) => {
+        return this.onKeydown(event);
       }
     });
 
-    // Connect to changes.
-    if (!USE_YCODEMIRROR_BINDING) {
-      model.value.changed.connect(this._onValueChanged, this);
-    }
-    model.mimeTypeChanged.connect(this._onMimeTypeChanged, this);
-    model.selections.changed.connect(this._onSelectionsChanged, this);
-
-    CodeMirror.on(editor, 'keydown', (editor: CodeMirror.Editor, event) => {
-      const index = ArrayExt.findFirstIndex(this._keydownHandlers, handler => {
-        if (handler(this, event) === true) {
-          event.preventDefault();
-          return true;
-        }
-        return false;
-      });
-      if (index === -1) {
-        this.onKeydown(event);
+    const updateListener = EditorView.updateListener.of(
+      (update: ViewUpdate) => {
+        this._onDocChanged(update);
       }
-    });
-
-    if (USE_YCODEMIRROR_BINDING) {
-      this._yeditorBinding?.on('cursorActivity', () =>
-        this._onCursorActivity()
-      );
-    } else {
-      CodeMirror.on(editor, 'cursorActivity', () => this._onCursorActivity());
-      CodeMirror.on(editor.getDoc(), 'beforeChange', (instance, change) => {
-        this._beforeDocChanged(instance, change);
-      });
-    }
-    CodeMirror.on(editor.getDoc(), 'change', (instance, change) => {
-      // Manually refresh after setValue to make sure editor is properly sized.
-      if (change.origin === 'setValue' && this.hasFocus()) {
-        this.refresh();
-      }
-      this._lastChange = change;
-    });
+    );
 
-    // Turn off paste handling in codemirror since sometimes we want to
-    // replace it with our own.
-    editor.on('paste', (instance: CodeMirror.Editor, event: any) => {
-      const handlePaste = this._config['handlePaste'] ?? true;
-      if (!handlePaste) {
-        event.codemirrorIgnore = true;
-      }
-    });
+    this._editor = Private.createEditor(
+      host,
+      this._configurator,
+      [
+        // We need to set the order to high, otherwise the keybinding for ArrowUp/ArrowDown
+        // will process the event shunting our edge detection code.
+        Prec.high(onKeyDown),
+        updateListener,
+        // Initialize with empty extension
+        this._language.of([]),
+        ...(options.extensions ?? [])
+      ],
+      model.sharedModel.source
+    );
 
-    // Manually refresh on paste to make sure editor is properly sized.
-    editor.getWrapperElement().addEventListener('paste', () => {
-      if (this.hasFocus()) {
-        this.refresh();
-      }
-    });
-  }
+    this._onMimeTypeChanged();
+    this._onCursorActivity();
 
-  /**
-   * Initialize the editor binding.
-   */
-  private _initializeEditorBinding(): void {
-    if (!USE_YCODEMIRROR_BINDING) {
-      return;
-    }
-    this._yeditorBinding?.destroy();
-    const sharedModel = this.model.sharedModel as models.IYText;
-    const opts = sharedModel.undoManager
-      ? { yUndoManager: sharedModel.undoManager }
-      : {};
-    const awareness = sharedModel.awareness;
-    this._yeditorBinding = new CodemirrorBinding(
-      sharedModel.ysource,
-      this.editor,
-      awareness,
-      opts
-    );
+    this._configurator.configChanged.connect(this.onConfigChanged, this);
+    model.mimeTypeChanged.connect(this._onMimeTypeChanged, this);
   }
 
   /**
@@ -241,35 +122,25 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     this._uuid = value;
   }
 
-  /**
-   * The selection style of this editor.
-   */
-  get selectionStyle(): CodeEditor.ISelectionStyle {
-    return this._selectionStyle;
-  }
-  set selectionStyle(value: CodeEditor.ISelectionStyle) {
-    this._selectionStyle = value;
-  }
-
   /**
    * Get the codemirror editor wrapped by the editor.
    */
-  get editor(): CodeMirror.Editor {
+  get editor(): EditorView {
     return this._editor;
   }
 
   /**
    * Get the codemirror doc wrapped by the widget.
    */
-  get doc(): CodeMirror.Doc {
-    return this._editor.getDoc();
+  get doc(): Text {
+    return this._editor.state.doc;
   }
 
   /**
    * Get the number of lines in the editor.
    */
   get lineCount(): number {
-    return this.doc.lineCount();
+    return this.doc.lines;
   }
 
   /**
@@ -283,14 +154,14 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * The height of a line in the editor in pixels.
    */
   get lineHeight(): number {
-    return this._editor.defaultTextHeight();
+    return this._editor.defaultLineHeight;
   }
 
   /**
    * The widget of a character in the editor in pixels.
    */
   get charWidth(): number {
-    return this._editor.defaultCharWidth();
+    return this._editor.defaultCharacterWidth;
   }
 
   /**
@@ -311,35 +182,30 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     this.host.removeEventListener('focus', this, true);
     this.host.removeEventListener('blur', this, true);
     this.host.removeEventListener('scroll', this, true);
-    if (this._yeditorBinding) {
-      this._yeditorBinding.destroy();
-    }
-    this._keydownHandlers.length = 0;
-    this._poll.dispose();
+    this._configurator.dispose();
     Signal.clearData(this);
+    this.editor.destroy();
   }
 
   /**
    * Get a config option for the editor.
    */
-  getOption<K extends keyof CodeMirrorEditor.IConfig>(
-    option: K
-  ): CodeMirrorEditor.IConfig[K] {
-    return this._config[option];
+  getOption(option: string): unknown {
+    return this._configurator.getOption(option);
+  }
+
+  /**
+   * Whether the option exists or not.
+   */
+  hasOption(option: string): boolean {
+    return this._configurator.hasOption(option);
   }
 
   /**
    * Set a config option for the editor.
    */
-  setOption<K extends keyof CodeMirrorEditor.IConfig>(
-    option: K,
-    value: CodeMirrorEditor.IConfig[K]
-  ): void {
-    // Don't bother setting the option if it is already the same.
-    if (this._config[option] !== value) {
-      this._config[option] = value;
-      Private.setOption(this.editor, option, value, this._config);
-    }
+  setOption(option: string, value: unknown): void {
+    this._configurator.setOption(option, value);
   }
 
   /**
@@ -350,41 +216,45 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * the costly update at the end, and not after every option
    * is set.
    */
-  setOptions(options: Partial<CodeMirrorEditor.IConfig>): void {
-    const editor = this._editor;
-    editor.startOperation();
-    for (const key in options) {
-      const k = key as keyof CodeMirrorEditor.IConfig;
-      editor.operation(() => {
-        this.setOption(k, options[k]);
-      });
-    }
-    editor.endOperation();
+  setOptions(options: Record<string, any>): void {
+    this._configurator.setOptions(options);
+  }
+
+  /**
+   * Inject an extension into the editor
+   *
+   * @alpha
+   * @experimental
+   * @param ext CodeMirror 6 extension
+   */
+  injectExtension(ext: Extension): void {
+    this._configurator.injectExtension(this._editor, ext);
   }
 
   /**
    * Returns the content for the given line number.
    */
   getLine(line: number): string | undefined {
-    return this.doc.getLine(line);
+    // TODO: CM6 remove +1 when CM6 first line number has propagated
+    line = line + 1;
+    return line <= this.doc.lines ? this.doc.line(line).text : undefined;
   }
 
   /**
    * Find an offset for the given position.
    */
   getOffsetAt(position: CodeEditor.IPosition): number {
-    return this.doc.indexFromPos({
-      ch: position.column,
-      line: position.line
-    });
+    // TODO: CM6 remove +1 when CM6 first line number has propagated
+    return this.doc.line(position.line + 1).from + position.column;
   }
 
   /**
    * Find a position for the given offset.
    */
   getPositionAt(offset: number): CodeEditor.IPosition {
-    const { ch, line } = this.doc.posFromIndex(offset);
-    return { line, column: ch };
+    // TODO: CM6 remove -1 when CM6 first line number has propagated
+    const line = this.doc.lineAt(offset);
+    return { line: line.number - 1, column: offset - line.from };
   }
 
   /**
@@ -405,7 +275,7 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Clear the undo history.
    */
   clearHistory(): void {
-    this._yeditorBinding?.yUndoManager?.clear();
+    this.model.sharedModel.clearUndoHistory();
   }
 
   /**
@@ -419,150 +289,68 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Test whether the editor has keyboard focus.
    */
   hasFocus(): boolean {
-    return this._editor.getWrapperElement().contains(document.activeElement);
+    return this._editor.hasFocus;
   }
 
   /**
    * Explicitly blur the editor.
    */
   blur(): void {
-    this._editor.getInputField().blur();
+    this._editor.contentDOM.blur();
   }
 
-  /**
-   * Repaint editor.
-   */
-  refresh(): void {
-    this._editor.refresh();
-    this._needsRefresh = false;
-  }
-
-  /**
-   * Refresh the editor if it is focused;
-   * otherwise postpone refreshing till focusing.
-   */
-  resizeToFit(): void {
-    if (this.hasFocus()) {
-      this.refresh();
-    } else {
-      this._needsRefresh = true;
-    }
-    this._clearHover();
-  }
-
-  // todo: docs, maybe define overlay options as a type?
-  addOverlay(mode: string | object, options?: object): void {
-    this._editor.addOverlay(mode, options);
-  }
-
-  removeOverlay(mode: string | object): void {
-    this._editor.removeOverlay(mode);
-  }
-
-  getSearchCursor(
-    query: string | RegExp,
-    start?: CodeMirror.Position,
-    caseFold?: boolean
-  ): CodeMirror.SearchCursor {
-    return this._editor.getDoc().getSearchCursor(query, start, caseFold);
-  }
-
-  getCursor(start?: string): CodeMirror.Position {
-    return this._editor.getDoc().getCursor(start);
-  }
-
-  get state(): any {
+  get state(): EditorState {
     return this._editor.state;
   }
 
-  operation<T>(fn: () => T): T {
-    return this._editor.operation(fn);
-  }
-
   firstLine(): number {
-    return this._editor.getDoc().firstLine();
+    // TODO: return 1 when CM6 first line number has propagated
+    return 0;
   }
 
   lastLine(): number {
-    return this._editor.getDoc().lastLine();
-  }
-
-  scrollIntoView(
-    pos: { from: CodeMirror.Position; to: CodeMirror.Position },
-    margin: number
-  ): void {
-    this._editor.scrollIntoView(pos, margin);
-  }
-
-  scrollIntoViewCentered(pos: CodeMirror.Position): void {
-    const top = this._editor.charCoords(pos, 'local').top;
-    const height = this._editor.getWrapperElement().offsetHeight;
-    this.host.scrollIntoView?.({
-      behavior: 'auto',
-      block: 'center',
-      inline: 'center'
-    });
-    this._editor.scrollTo(null, top - height / 2);
+    return this.doc.lines - 1;
   }
 
   cursorCoords(
     where: boolean,
     mode?: 'window' | 'page' | 'local'
   ): { left: number; top: number; bottom: number } {
-    return this._editor.cursorCoords(where, mode);
+    const selection = this.state.selection.main;
+    const pos = where ? selection.from : selection.to;
+    const rect = this.editor.coordsAtPos(pos);
+    return rect as { left: number; top: number; bottom: number };
   }
 
   getRange(
-    from: CodeMirror.Position,
-    to: CodeMirror.Position,
+    from: { line: number; ch: number },
+    to: { line: number; ch: number },
     separator?: string
   ): string {
-    return this._editor.getDoc().getRange(from, to, separator);
-  }
-
-  /**
-   * Add a keydown handler to the editor.
-   *
-   * @param handler - A keydown handler.
-   *
-   * @returns A disposable that can be used to remove the handler.
-   */
-  addKeydownHandler(handler: CodeEditor.KeydownHandler): IDisposable {
-    this._keydownHandlers.push(handler);
-    return new DisposableDelegate(() => {
-      ArrayExt.removeAllWhere(this._keydownHandlers, val => val === handler);
-    });
-  }
-
-  /**
-   * Set the size of the editor in pixels.
-   */
-  setSize(dimension: CodeEditor.IDimension | null): void {
-    if (dimension) {
-      this._editor.setSize(dimension.width, dimension.height);
-    } else {
-      this._editor.setSize(null, null);
-    }
-    this._needsRefresh = false;
+    const fromOffset = this.getOffsetAt(this._toPosition(from));
+    const toOffset = this.getOffsetAt(this._toPosition(to));
+    return this.state.sliceDoc(fromOffset, toOffset);
   }
 
   /**
    * Reveal the given position in the editor.
    */
   revealPosition(position: CodeEditor.IPosition): void {
-    const cmPosition = this._toCodeMirrorPosition(position);
-    this._editor.scrollIntoView(cmPosition);
+    const offset = this.getOffsetAt(position);
+    this._editor.dispatch({
+      effects: EditorView.scrollIntoView(offset)
+    });
   }
 
   /**
    * Reveal the given selection in the editor.
    */
   revealSelection(selection: CodeEditor.IRange): void {
-    const range = {
-      from: this._toCodeMirrorPosition(selection.start),
-      to: this._toCodeMirrorPosition(selection.end)
-    };
-    this._editor.scrollIntoView(range);
+    const start = this.getOffsetAt(selection.start);
+    const end = this.getOffsetAt(selection.end);
+    this._editor.dispatch({
+      effects: EditorView.scrollIntoView(EditorSelection.range(start, end))
+    });
   }
 
   /**
@@ -571,8 +359,8 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
   getCoordinateForPosition(
     position: CodeEditor.IPosition
   ): CodeEditor.ICoordinate {
-    const pos = this._toCodeMirrorPosition(position);
-    const rect = this.editor.charCoords(pos, 'page');
+    const offset = this.getOffsetAt(position);
+    const rect = this.editor.coordsAtPos(offset);
     return rect as CodeEditor.ICoordinate;
   }
 
@@ -587,15 +375,19 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
   getPositionForCoordinate(
     coordinate: CodeEditor.ICoordinate
   ): CodeEditor.IPosition | null {
-    return this._toPosition(this.editor.coordsChar(coordinate)) || null;
+    const offset = this.editor.posAtCoords({
+      x: coordinate.left,
+      y: coordinate.top
+    });
+    return this.getPositionAt(offset!) || null;
   }
 
   /**
    * Returns the primary position of the cursor, never `null`.
    */
   getCursorPosition(): CodeEditor.IPosition {
-    const cursor = this.doc.getCursor();
-    return this._toPosition(cursor);
+    const offset = this.state.selection.main.head;
+    return this.getPositionAt(offset);
   }
 
   /**
@@ -608,12 +400,15 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     position: CodeEditor.IPosition,
     options?: { bias?: number; origin?: string; scroll?: boolean }
   ): void {
-    const cursor = this._toCodeMirrorPosition(position);
-    this.doc.setCursor(cursor, undefined, options);
+    const offset = this.getOffsetAt(position);
+    this.editor.dispatch({
+      selection: { anchor: offset },
+      scrollIntoView: true
+    });
     // If the editor does not have focus, this cursor change
     // will get screened out in _onCursorsChanged(). Make an
     // exception for this method.
-    if (!this.editor.hasFocus()) {
+    if (!this.editor.hasFocus) {
       this.model.selections.set(this.uuid, this.getSelections());
     }
   }
@@ -636,11 +431,17 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Gets the selections for all the cursors, never `null` or empty.
    */
   getSelections(): CodeEditor.ITextSelection[] {
-    const selections = this.doc.listSelections();
+    const selections = this.state.selection.ranges; //= [{anchor: number, head: number}]
     if (selections.length > 0) {
-      return selections.map(selection => this._toSelection(selection));
+      const sel = selections.map(r => ({
+        anchor: this._toCodeMirrorPosition(this.getPositionAt(r.from)),
+        head: this._toCodeMirrorPosition(this.getPositionAt(r.to))
+      }));
+      return sel.map(selection => this._toSelection(selection));
     }
-    const cursor = this.doc.getCursor();
+    const cursor = this._toCodeMirrorPosition(
+      this.getPositionAt(this.state.selection.main.head)
+    );
     const selection = this._toSelection({ anchor: cursor, head: cursor });
     return [selection];
   }
@@ -651,31 +452,56 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Passing an empty array resets a cursor position to the start of a document.
    */
   setSelections(selections: CodeEditor.IRange[]): void {
-    const cmSelections = this._toCodeMirrorSelections(selections);
-    this.doc.setSelections(cmSelections, 0);
+    const sel = selections.length
+      ? selections.map(r =>
+          EditorSelection.range(
+            this.getOffsetAt(r.start),
+            this.getOffsetAt(r.end)
+          )
+        )
+      : [EditorSelection.range(0, 0)];
+    this.editor.dispatch({ selection: EditorSelection.create(sel) });
   }
 
   /**
    * Replaces the current selection with the given text.
    *
+   * Behaviour for multiple selections is undefined.
+   *
    * @param text The text to be inserted.
    */
   replaceSelection(text: string): void {
-    this.doc.replaceSelection(text);
+    const firstSelection = this.getSelections()[0];
+    this.model.sharedModel.updateSource(
+      this.getOffsetAt(firstSelection.start),
+      this.getOffsetAt(firstSelection.end),
+      text
+    );
+    const newPosition = this.getPositionAt(
+      this.getOffsetAt(firstSelection.start) + text.length
+    );
+    this.setSelection({ start: newPosition, end: newPosition });
   }
 
   /**
    * Get a list of tokens for the current editor text content.
    */
   getTokens(): CodeEditor.IToken[] {
-    let tokens: CodeEditor.IToken[] = [];
-    for (let i = 0; i < this.lineCount; ++i) {
-      const lineTokens = this.editor.getLineTokens(i).map(t => ({
-        offset: this.getOffsetAt({ column: t.start, line: i }),
-        value: t.string,
-        type: t.type || ''
-      }));
-      tokens = tokens.concat(lineTokens);
+    const tokens: CodeEditor.IToken[] = [];
+    const tree = ensureSyntaxTree(this.state, this.doc.length);
+    if (tree) {
+      tree.iterate({
+        enter: (ref: SyntaxNodeRef) => {
+          if (ref.node.firstChild === null) {
+            tokens.push({
+              value: this.state.sliceDoc(ref.from, ref.to),
+              offset: ref.from,
+              type: ref.name
+            });
+          }
+          return true;
+        }
+      });
     }
     return tokens;
   }
@@ -683,21 +509,51 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
   /**
    * Get the token at a given editor position.
    */
-  getTokenForPosition(position: CodeEditor.IPosition): CodeEditor.IToken {
-    const cursor = this._toCodeMirrorPosition(position);
-    const token = this.editor.getTokenAt(cursor);
-    return {
-      offset: this.getOffsetAt({ column: token.start, line: cursor.line }),
-      value: token.string,
-      type: token.type ?? undefined
-    };
+  getTokenAt(offset: number): CodeEditor.IToken {
+    const tree = ensureSyntaxTree(this.state, offset);
+    let token: CodeEditor.IToken | null = null;
+    if (tree) {
+      tree.iterate({
+        enter: (ref: SyntaxNodeRef) => {
+          // If a token has already been discovered, stop iterating.
+          if (token) {
+            return false;
+          }
+          // If it is not a leaf, keep iterating.
+          if (ref.node.firstChild) {
+            return true;
+          }
+          // If the relevant leaf token has been found, stop iterating.
+          if (offset >= ref.from && offset <= ref.to) {
+            token = {
+              value: this.state.sliceDoc(ref.from, ref.to),
+              offset: ref.from,
+              type: ref.name
+            };
+            return false;
+          }
+          return true;
+        }
+      });
+    }
+    return token || { offset, value: '' };
+  }
+
+  /**
+   * Get the token a the cursor position.
+   */
+  getTokenAtCursor(): CodeEditor.IToken {
+    return this.getTokenAt(this.state.selection.main.head);
   }
 
   /**
    * Insert a new indented line at the current cursor position.
    */
   newIndentedLine(): void {
-    this.execCommand('newlineAndIndent');
+    insertNewlineAndIndent({
+      state: this.state,
+      dispatch: this.editor.dispatch
+    });
   }
 
   /**
@@ -705,171 +561,70 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    *
    * @param command - The name of the command to execute.
    */
-  execCommand(command: string): void {
-    this._editor.execCommand(command);
+  execCommand(command: Command | StateCommand): void {
+    command(this.editor);
+  }
+
+  protected onConfigChanged(
+    configurator: IExtensionsHandler,
+    changes: Record<string, any>
+  ): void {
+    configurator.reconfigureExtensions(this._editor, changes);
   }
 
   /**
    * Handle keydown events from the editor.
    */
   protected onKeydown(event: KeyboardEvent): boolean {
-    const position = this.getCursorPosition();
-    const { line, column } = position;
+    const position = this.state.selection.main.head;
 
-    if (line === 0 && column === 0 && event.keyCode === UP_ARROW) {
+    if (position === 0 && event.keyCode === UP_ARROW) {
       if (!event.shiftKey) {
         this.edgeRequested.emit('top');
       }
       return false;
     }
 
-    if (line === 0 && event.keyCode === UP_ARROW) {
+    const line = this.doc.lineAt(position).number;
+    if (line === 1 && event.keyCode === UP_ARROW) {
       if (!event.shiftKey) {
         this.edgeRequested.emit('topLine');
       }
       return false;
     }
 
-    const lastLine = this.lineCount - 1;
-    const lastCh = this.getLine(lastLine)!.length;
-    if (
-      line === lastLine &&
-      column === lastCh &&
-      event.keyCode === DOWN_ARROW
-    ) {
+    const length = this.doc.length;
+    if (position === length && event.keyCode === DOWN_ARROW) {
       if (!event.shiftKey) {
         this.edgeRequested.emit('bottom');
       }
       return false;
     }
-    return false;
-  }
 
-  /**
-   * Converts selections to code mirror selections.
-   */
-  private _toCodeMirrorSelections(
-    selections: CodeEditor.IRange[]
-  ): CodeMirror.Selection[] {
-    if (selections.length > 0) {
-      return selections.map(selection =>
-        this._toCodeMirrorSelection(selection)
-      );
-    }
-    const position = { line: 0, ch: 0 };
-    return [{ anchor: position, head: position }];
+    return false;
   }
 
   /**
    * Handles a mime type change.
    */
   private _onMimeTypeChanged(): void {
-    const mime = this._model.mimeType;
-    const editor = this._editor;
-    const extraKeys = (editor.getOption('extraKeys' as any) ||
-      {}) as CodeMirror.KeyMap;
-    const isCode = mime !== 'text/plain' && mime !== 'text/x-ipythongfm';
-    if (isCode) {
-      extraKeys['Backspace'] = 'delSpaceToPrevTabStop';
-    } else {
-      delete extraKeys['Backspace'];
-    }
-    this.setOption('extraKeys', extraKeys);
-
     // TODO: should we provide a hook for when the mode is done being set?
-    void Mode.ensure(mime).then(spec => {
-      this.setOption('mode', spec?.mime ?? 'null');
-    });
-  }
-
-  /**
-   * Handles a selections change.
-   */
-  private _onSelectionsChanged(
-    selections: IObservableMap<CodeEditor.ITextSelection[]>,
-    args: IObservableMap.IChangedArgs<CodeEditor.ITextSelection[]>
-  ): void {
-    const uuid = args.key;
-    if (uuid !== this.uuid) {
-      this._cleanSelections(uuid);
-      if (args.type !== 'remove' && args.newValue) {
-        this._markSelections(uuid, args.newValue);
-      }
-    }
-  }
-
-  /**
-   * Clean selections for the given uuid.
-   */
-  private _cleanSelections(uuid: string) {
-    const markers = this.selectionMarkers[uuid];
-    if (markers) {
-      markers.forEach(marker => {
-        marker.clear();
-      });
-    }
-    delete this.selectionMarkers[uuid];
-  }
-
-  /**
-   * Marks selections.
-   */
-  private _markSelections(
-    uuid: string,
-    selections: CodeEditor.ITextSelection[]
-  ) {
-    const markers: CodeMirror.TextMarker[] = [];
-
-    // If we are marking selections corresponding to an active hover,
-    // remove it.
-    if (uuid === this._hoverId) {
-      this._clearHover();
-    }
-    // If we can id the selection to a specific collaborator,
-    // use that information.
-    let collaborator: ICollaborator | undefined;
-    if (this._model.modelDB.collaborators) {
-      collaborator = this._model.modelDB.collaborators.get(uuid);
-    }
-
-    // Style each selection for the uuid.
-    selections.forEach(selection => {
-      // Only render selections if the start is not equal to the end.
-      // In that case, we don't need to render the cursor.
-      if (!JSONExt.deepEqual(selection.start, selection.end)) {
-        // Selections only appear to render correctly if the anchor
-        // is before the head in the document. That is, reverse selections
-        // do not appear as intended.
-        const forward: boolean =
-          selection.start.line < selection.end.line ||
-          (selection.start.line === selection.end.line &&
-            selection.start.column <= selection.end.column);
-        const anchor = this._toCodeMirrorPosition(
-          forward ? selection.start : selection.end
-        );
-        const head = this._toCodeMirrorPosition(
-          forward ? selection.end : selection.start
-        );
-        let markerOptions: CodeMirror.TextMarkerOptions;
-        if (collaborator) {
-          markerOptions = this._toTextMarkerOptions({
-            ...selection.style,
-            color: collaborator.color
-          });
-        } else {
-          markerOptions = this._toTextMarkerOptions(selection.style);
-        }
-        markers.push(this.doc.markText(anchor, head, markerOptions));
-      } else if (collaborator) {
-        const caret = this._getCaret(collaborator);
-        markers.push(
-          this.doc.setBookmark(this._toCodeMirrorPosition(selection.end), {
-            widget: caret
-          })
+    this._languages
+      .getLanguage(this._model.mimeType)
+      .then(language => {
+        this._editor.dispatch({
+          effects: this._language.reconfigure(language?.support ?? [])
+        });
+      })
+      .catch(reason => {
+        console.log(
+          `Failed to load language for '${this._model.mimeType}'.`,
+          reason
         );
-      }
-    });
-    this.selectionMarkers[uuid] = markers;
+        this._editor.dispatch({
+          effects: this._language.reconfigure([])
+        });
+      });
   }
 
   /**
@@ -878,7 +633,7 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
   private _onCursorActivity(): void {
     // Only add selections if the editor has focus. This avoids unwanted
     // triggering of cursor activity due to collaborator actions.
-    if (this._editor.hasFocus()) {
+    if (this._editor.hasFocus) {
       const selections = this.getSelections();
       this.model.selections.set(this.uuid, selections);
     }
@@ -887,50 +642,21 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
   /**
    * Converts a code mirror selection to an editor selection.
    */
-  private _toSelection(
-    selection: CodeMirror.Selection
-  ): CodeEditor.ITextSelection {
+  private _toSelection(selection: {
+    anchor: { line: number; ch: number };
+    head: { line: number; ch: number };
+  }): CodeEditor.ITextSelection {
     return {
       uuid: this.uuid,
       start: this._toPosition(selection.anchor),
-      end: this._toPosition(selection.head),
-      style: this.selectionStyle
-    };
-  }
-
-  /**
-   * Converts the selection style to a text marker options.
-   */
-  private _toTextMarkerOptions(
-    style: CodeEditor.ISelectionStyle
-  ): CodeMirror.TextMarkerOptions {
-    const r = parseInt(style.color.slice(1, 3), 16);
-    const g = parseInt(style.color.slice(3, 5), 16);
-    const b = parseInt(style.color.slice(5, 7), 16);
-    const css = `background-color: rgba( ${r}, ${g}, ${b}, 0.15)`;
-    return {
-      className: style.className,
-      title: style.displayName,
-      css
-    };
-  }
-
-  /**
-   * Converts an editor selection to a code mirror selection.
-   */
-  private _toCodeMirrorSelection(
-    selection: CodeEditor.IRange
-  ): CodeMirror.Selection {
-    return {
-      anchor: this._toCodeMirrorPosition(selection.start),
-      head: this._toCodeMirrorPosition(selection.end)
+      end: this._toPosition(selection.head)
     };
   }
 
   /**
    * Convert a code mirror position to an editor position.
    */
-  private _toPosition(position: CodeMirror.Position) {
+  private _toPosition(position: { line: number; ch: number }) {
     return {
       line: position.line,
       column: position.ch
@@ -947,68 +673,13 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     };
   }
 
-  /**
-   * Handle model value changes.
-   */
-  private _onValueChanged(
-    value: IObservableString,
-    args: IObservableString.IChangedArgs
-  ): void {
-    if (this._changeGuard) {
-      return;
-    }
-    this._changeGuard = true;
-    const doc = this.doc;
-    switch (args.type) {
-      case 'insert': {
-        const pos = doc.posFromIndex(args.start);
-        // Replace the range, including a '+input' origin,
-        // which indicates that CodeMirror may merge changes
-        // for undo/redo purposes.
-        doc.replaceRange(args.value, pos, pos, '+input');
-        break;
-      }
-      case 'remove': {
-        const from = doc.posFromIndex(args.start);
-        const to = doc.posFromIndex(args.end);
-        // Replace the range, including a '+input' origin,
-        // which indicates that CodeMirror may merge changes
-        // for undo/redo purposes.
-        doc.replaceRange('', from, to, '+input');
-        break;
-      }
-      case 'set':
-        doc.setValue(args.value);
-        break;
-      default:
-        break;
-    }
-    this._changeGuard = false;
-  }
-
   /**
    * Handles document changes.
    */
-  private _beforeDocChanged(
-    doc: CodeMirror.Doc,
-    change: CodeMirror.EditorChange
-  ) {
-    if (this._changeGuard) {
-      return;
-    }
-    this._changeGuard = true;
-    const value = this._model.value;
-    const start = doc.indexFromPos(change.from);
-    const end = doc.indexFromPos(change.to);
-    const inserted = change.text.join('\n');
-
-    if (end !== start) {
-      value.remove(start, end);
+  private _onDocChanged(update: ViewUpdate) {
+    if (update.transactions.length && update.transactions[0].selection) {
+      this._onCursorActivity();
     }
-    if (inserted) {
-      value.insert(start, inserted);
-    }
-    this._changeGuard = false;
   }
 
   /**
@@ -1029,9 +700,6 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
       case 'blur':
         this._evtBlur(event as FocusEvent);
         break;
-      case 'scroll':
-        this._evtScroll();
-        break;
       default:
         break;
     }
@@ -1041,9 +709,6 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
    * Handle `focus` events for the editor.
    */
   private _evtFocus(event: FocusEvent): void {
-    if (this._needsRefresh) {
-      this.refresh();
-    }
     this.host.classList.add('jp-mod-focused');
 
     // Update the selections on editor gaining focus because
@@ -1059,129 +724,13 @@ export class CodeMirrorEditor implements CodeEditor.IEditor {
     this.host.classList.remove('jp-mod-focused');
   }
 
-  /**
-   * Handle `scroll` events for the editor.
-   */
-  private _evtScroll(): void {
-    // Remove any active hover.
-    this._clearHover();
-  }
-
-  /**
-   * Clear the hover for a caret, due to things like
-   * scrolling, resizing, deactivation, etc, where
-   * the position is no longer valid.
-   */
-  private _clearHover(): void {
-    if (this._caretHover) {
-      window.clearTimeout(this._hoverTimeout);
-      document.body.removeChild(this._caretHover);
-      this._caretHover = null;
-    }
-  }
-
-  /**
-   * Construct a caret element representing the position
-   * of a collaborator's cursor.
-   */
-  private _getCaret(collaborator: ICollaborator): HTMLElement {
-    // FIXME-TRANS: Is this localizable?
-    const name = collaborator ? collaborator.displayName : 'Anonymous';
-    const color = collaborator
-      ? collaborator.color
-      : this._selectionStyle.color;
-    const caret: HTMLElement = document.createElement('span');
-    caret.className = COLLABORATOR_CURSOR_CLASS;
-    caret.style.borderBottomColor = color;
-    caret.onmouseenter = () => {
-      this._clearHover();
-      this._hoverId = collaborator.sessionId;
-      const rect = caret.getBoundingClientRect();
-      // Construct and place the hover box.
-      const hover = document.createElement('div');
-      hover.className = COLLABORATOR_HOVER_CLASS;
-      hover.style.left = String(rect.left) + 'px';
-      hover.style.top = String(rect.bottom) + 'px';
-      hover.textContent = name;
-      hover.style.backgroundColor = color;
-
-      // If the user mouses over the hover, take over the timer.
-      hover.onmouseenter = () => {
-        window.clearTimeout(this._hoverTimeout);
-      };
-      hover.onmouseleave = () => {
-        this._hoverTimeout = window.setTimeout(() => {
-          this._clearHover();
-        }, HOVER_TIMEOUT);
-      };
-      this._caretHover = hover;
-      document.body.appendChild(hover);
-    };
-    caret.onmouseleave = () => {
-      this._hoverTimeout = window.setTimeout(() => {
-        this._clearHover();
-      }, HOVER_TIMEOUT);
-    };
-    return caret;
-  }
-
-  /**
-   * Check for an out of sync editor.
-   */
-  private _checkSync(): void {
-    const change = this._lastChange;
-    if (!change) {
-      return;
-    }
-    this._lastChange = null;
-    const editor = this._editor;
-    const doc = editor.getDoc();
-    if (doc.getValue() === this._model.value.text) {
-      return;
-    }
-
-    void showDialog({
-      title: this._trans.__('Code Editor out of Sync'),
-      body: this._trans.__(
-        'Please open your browser JavaScript console for bug report instructions'
-      )
-    });
-    console.warn(
-      'If you are able and willing to publicly share the text or code in your editor, you can help us debug the "Code Editor out of Sync" message by pasting the following to the public issue at https://github.com/jupyterlab/jupyterlab/issues/2951. Please note that the data below includes the text/code in your editor.'
-    );
-    console.warn(
-      JSON.stringify({
-        model: this._model.value.text,
-        view: doc.getValue(),
-        selections: this.getSelections(),
-        cursor: this.getCursorPosition(),
-        lineSep: editor.getOption('lineSeparator'),
-        mode: editor.getOption('mode'),
-        change
-      })
-    );
-  }
-
-  protected translator: ITranslator;
-  private _trans: TranslationBundle;
+  private _configurator: IExtensionsHandler;
+  private _editor: EditorView;
+  private _isDisposed = false;
+  private _language = new Compartment();
+  private _languages: IEditorLanguageRegistry;
   private _model: CodeEditor.IModel;
-  private _editor: CodeMirror.Editor;
-  protected selectionMarkers: {
-    [key: string]: CodeMirror.TextMarker[] | undefined;
-  } = {};
-  private _caretHover: HTMLElement | null;
-  private readonly _config: CodeMirrorEditor.IConfig;
-  private _hoverTimeout: number;
-  private _hoverId: string;
-  private _keydownHandlers = new Array<CodeEditor.KeydownHandler>();
-  private _changeGuard = false;
-  private _selectionStyle: CodeEditor.ISelectionStyle;
   private _uuid = '';
-  private _needsRefresh = false;
-  private _isDisposed = false;
-  private _lastChange: CodeMirror.EditorChange | null = null;
-  private _poll: Poll;
-  private _yeditorBinding: CodemirrorBinding | null;
 }
 
 /**
@@ -1193,437 +742,36 @@ export namespace CodeMirrorEditor {
    */
   export interface IOptions extends CodeEditor.IOptions {
     /**
-     * The configuration options for the editor.
-     */
-    config?: Partial<IConfig>;
-  }
-
-  /**
-   * The configuration options for a codemirror editor.
-   */
-  export interface IConfig extends CodeEditor.IConfig {
-    /**
-     * The mode to use.
-     */
-    mode?: string | Mode.IMode;
-
-    /**
-     * The theme to style the editor with.
-     * You must make sure the CSS file defining the corresponding
-     * .cm-s-[name] styles is loaded.
-     */
-    theme?: string;
-
-    // FIXME-TRANS: Handle theme localizable names
-    // themeDisplayName?: string
-
-    /**
-     * Whether to use the context-sensitive indentation that the mode provides
-     * (or just indent the same as the line before).
-     */
-    smartIndent?: boolean;
-
-    /**
-     * Configures whether the editor should re-indent the current line when a
-     * character is typed that might change its proper indentation
-     * (only works if the mode supports indentation).
-     */
-    electricChars?: boolean;
-
-    /**
-     * Configures the keymap to use. The default is "default", which is the
-     * only keymap defined in codemirror.js itself.
-     * Extra keymaps are found in the CodeMirror keymap directory.
-     */
-    keyMap?: string;
-
-    /**
-     * Can be used to specify extra keybindings for the editor, alongside the
-     * ones defined by keyMap. Should be either null, or a valid keymap value.
+     * CodeMirror extensions registry
      */
-    extraKeys?: CodeMirror.KeyMap | null;
-
+    extensionsRegistry?: IEditorExtensionRegistry;
     /**
-     * Can be used to add extra gutters (beyond or instead of the line number
-     * gutter).
-     * Should be an array of CSS class names, each of which defines a width
-     * (and optionally a background),
-     * and which will be used to draw the background of the gutters.
-     * May include the CodeMirror-linenumbers class, in order to explicitly
-     * set the position of the line number gutter
-     * (it will default to be to the right of all other gutters).
-     * These class names are the keys passed to setGutterMarker.
+     * CodeMirror languages registry
      */
-    gutters?: string[];
-
-    /**
-     * Determines whether the gutter scrolls along with the content
-     * horizontally (false)
-     * or whether it stays fixed during horizontal scrolling (true,
-     * the default).
-     */
-    fixedGutter?: boolean;
-
-    /**
-     * Whether the folding gutter should be drawn
-     */
-    foldGutter?: boolean;
-
-    /**
-     * Whether the cursor should be drawn when a selection is active.
-     */
-    showCursorWhenSelecting?: boolean;
-
-    /**
-     * When fixedGutter is on, and there is a horizontal scrollbar, by default
-     * the gutter will be visible to the left of this scrollbar. If this
-     * option is set to true, it will be covered by an element with class
-     * CodeMirror-gutter-filler.
-     */
-    coverGutterNextToScrollbar?: boolean;
-
-    /**
-     * Controls whether drag-and-drop is enabled.
-     */
-    dragDrop?: boolean;
-
-    /**
-     * Explicitly set the line separator for the editor.
-     * By default (value null), the document will be split on CRLFs as well as
-     * lone CRs and LFs, and a single LF will be used as line separator in all
-     * output (such as getValue). When a specific string is given, lines will
-     * only be split on that string, and output will, by default, use that
-     * same separator.
-     */
-    lineSeparator?: string | null;
-
-    /**
-     * Chooses a scrollbar implementation. The default is "native", showing
-     * native scrollbars. The core library also provides the "null" style,
-     * which completely hides the scrollbars. Addons can implement additional
-     * scrollbar models.
-     */
-    scrollbarStyle?: string;
-
-    /**
-     * When enabled, which is the default, doing copy or cut when there is no
-     * selection will copy or cut the whole lines that have cursors on them.
-     */
-    lineWiseCopyCut?: boolean;
-
-    /**
-     * Whether to scroll past the end of the buffer.
-     */
-    scrollPastEnd?: boolean;
-
-    /**
-     * Whether to give the wrapper of the line that contains the cursor the class
-     * CodeMirror-activeline, adds a background with the class
-     * CodeMirror-activeline-background, and adds the class
-     * CodeMirror-activeline-gutter to the line's gutter space is enabled.
-     */
-    styleActiveLine: boolean | CodeMirror.StyleActiveLine;
-
-    /**
-     * Whether to causes the selected text to be marked with the CSS class
-     * CodeMirror-selectedtext. Useful to change the colour of the selection
-     * (in addition to the background).
-     */
-    styleSelectedText: boolean;
-
-    /**
-     * Defines the mouse cursor appearance when hovering over the selection.
-     * It can be set to a string, like "pointer", or to true,
-     * in which case the "default" (arrow) cursor will be used.
-     */
-    selectionPointer: boolean | string;
-  }
-
-  /**
-   * The default configuration options for an editor.
-   */
-  export const defaultConfig: Required<IConfig> = {
-    ...CodeEditor.defaultConfig,
-    mode: 'null',
-    theme: 'jupyter',
-    smartIndent: true,
-    electricChars: true,
-    keyMap: 'default',
-    extraKeys: null,
-    gutters: [],
-    fixedGutter: true,
-    showCursorWhenSelecting: false,
-    coverGutterNextToScrollbar: false,
-    dragDrop: true,
-    lineSeparator: null,
-    scrollbarStyle: 'native',
-    lineWiseCopyCut: true,
-    scrollPastEnd: false,
-    styleActiveLine: false,
-    styleSelectedText: true,
-    selectionPointer: false,
-    rulers: [],
-    foldGutter: false,
-    handlePaste: true
-  };
-
-  /**
-   * Add a command to CodeMirror.
-   *
-   * @param name - The name of the command to add.
-   *
-   * @param command - The command function.
-   */
-  export function addCommand(
-    name: string,
-    command: (cm: CodeMirror.Editor) => void
-  ): void {
-    (CodeMirror.commands as any)[name] = command;
+    languages?: IEditorLanguageRegistry;
   }
 }
+
 /**
  * The namespace for module private data.
  */
 namespace Private {
   export function createEditor(
     host: HTMLElement,
-    config: CodeMirrorEditor.IConfig
-  ): CodeMirror.Editor {
-    const {
-      autoClosingBrackets,
-      fontFamily,
-      fontSize,
-      insertSpaces,
-      lineHeight,
-      lineWrap,
-      wordWrapColumn,
-      tabSize,
-      readOnly,
-      ...otherOptions
-    } = config;
-    const bareConfig = {
-      autoCloseBrackets: autoClosingBrackets ? {} : false,
-      indentUnit: tabSize,
-      indentWithTabs: !insertSpaces,
-      lineWrapping: lineWrap === 'off' ? false : true,
-      readOnly,
-      ...otherOptions
-    } as CodeMirror.EditorConfiguration;
-    return CodeMirror(el => {
-      if (fontFamily) {
-        el.style.fontFamily = fontFamily;
-      }
-      if (fontSize) {
-        el.style.fontSize = fontSize + 'px';
-      }
-      if (lineHeight) {
-        el.style.lineHeight = lineHeight.toString();
-      }
-      if (readOnly) {
-        el.classList.add(READ_ONLY_CLASS);
-      }
-      if (lineWrap === 'wordWrapColumn') {
-        const lines = el.querySelector('.CodeMirror-lines') as HTMLDivElement;
-        lines.style.width = `${wordWrapColumn}ch`;
-      }
-      if (lineWrap === 'bounded') {
-        const lines = el.querySelector('.CodeMirror-lines') as HTMLDivElement;
-        lines.style.maxWidth = `${wordWrapColumn}ch`;
-      }
-      host.appendChild(el);
-    }, bareConfig);
-  }
-
-  /**
-   * Indent or insert a tab as appropriate.
-   */
-  export function indentMoreOrinsertTab(cm: CodeMirror.Editor): void {
-    const doc = cm.getDoc();
-    const from = doc.getCursor('from');
-    const to = doc.getCursor('to');
-    const sel = !posEq(from, to);
-    if (sel) {
-      CodeMirror.commands['indentMore'](cm);
-      return;
-    }
-    // Check for start of line.
-    const line = doc.getLine(from.line);
-    const before = line.slice(0, from.ch);
-    if (/^\s*$/.test(before)) {
-      CodeMirror.commands['indentMore'](cm);
-    } else {
-      if (cm.getOption('indentWithTabs')) {
-        CodeMirror.commands['insertTab'](cm);
-      } else {
-        CodeMirror.commands['insertSoftTab'](cm);
-      }
-    }
-  }
-
-  /**
-   * Delete spaces to the previous tab stop in a codemirror editor.
-   */
-  export function delSpaceToPrevTabStop(cm: CodeMirror.Editor): void {
-    const doc = cm.getDoc();
-    // default tabsize is 2, according to codemirror docs: https://codemirror.net/doc/manual.html#config
-    const tabSize = cm.getOption('indentUnit') ?? 2;
-    const ranges = doc.listSelections(); // handle multicursor
-    for (let i = ranges.length - 1; i >= 0; i--) {
-      // iterate reverse so any deletions don't overlap
-      const head = ranges[i].head;
-      const anchor = ranges[i].anchor;
-      const isSelection = !posEq(head, anchor);
-      if (isSelection) {
-        doc.replaceRange('', anchor, head);
-      } else {
-        const line = doc.getLine(head.line).substring(0, head.ch);
-        if (line.match(/^\ +$/) !== null) {
-          // delete tabs
-          const prevTabStop = (Math.ceil(head.ch / tabSize) - 1) * tabSize;
-          const from = CodeMirror.Pos(head.line, prevTabStop);
-          doc.replaceRange('', from, head);
-        } else {
-          // delete non-tabs
-          const from = cm.findPosH(head, -1, 'char', false);
-          doc.replaceRange('', from, head);
-        }
-      }
-    }
-  }
-
-  /**
-   * Test whether two CodeMirror positions are equal.
-   */
-  export function posEq(
-    a: CodeMirror.Position,
-    b: CodeMirror.Position
-  ): boolean {
-    return a.line === b.line && a.ch === b.ch;
-  }
-
-  /**
-   * Get the list of active gutters
-   *
-   * @param config Editor configuration
-   */
-  function getActiveGutters(config: CodeMirrorEditor.IConfig): string[] {
-    // The order of the classes will be the gutters order
-    const classToSwitch: { [val: string]: keyof CodeMirrorEditor.IConfig } = {
-      'CodeMirror-linenumbers': 'lineNumbers',
-      'CodeMirror-foldgutter': 'codeFolding'
-    };
-    return Object.keys(classToSwitch).filter(
-      gutter => config[classToSwitch[gutter]]
-    );
-  }
+    editorConfig: IExtensionsHandler,
+    additionalExtensions: Extension[],
+    doc?: string
+  ): EditorView {
+    const extensions = editorConfig.getInitialExtensions();
+    extensions.push(...additionalExtensions);
+    const view = new EditorView({
+      state: EditorState.create({
+        doc,
+        extensions
+      }),
+      parent: host
+    });
 
-  /**
-   * Set a config option for the editor.
-   */
-  export function setOption<K extends keyof CodeMirrorEditor.IConfig>(
-    editor: CodeMirror.Editor,
-    option: K,
-    value: CodeMirrorEditor.IConfig[K],
-    config: CodeMirrorEditor.IConfig
-  ): void {
-    const el = editor.getWrapperElement();
-    switch (option) {
-      case 'cursorBlinkRate':
-        (editor.setOption as any)(option, value);
-        break;
-      case 'lineWrap': {
-        const lineWrapping = value === 'off' ? false : true;
-        const lines = el.querySelector('.CodeMirror-lines') as HTMLDivElement;
-        const maxWidth =
-          value === 'bounded' ? `${config.wordWrapColumn}ch` : null;
-        const width =
-          value === 'wordWrapColumn' ? `${config.wordWrapColumn}ch` : null;
-        lines.style.setProperty('max-width', maxWidth);
-        lines.style.setProperty('width', width);
-        editor.setOption('lineWrapping', lineWrapping);
-        break;
-      }
-      case 'wordWrapColumn': {
-        const { lineWrap } = config;
-        if (lineWrap === 'wordWrapColumn' || lineWrap === 'bounded') {
-          const lines = el.querySelector('.CodeMirror-lines') as HTMLDivElement;
-          const prop = lineWrap === 'wordWrapColumn' ? 'width' : 'maxWidth';
-          lines.style[prop] = `${value}ch`;
-        }
-        break;
-      }
-      case 'tabSize':
-        editor.setOption(
-          'indentUnit',
-          value as CodeMirror.EditorConfiguration['tabSize']
-        );
-        break;
-      case 'insertSpaces':
-        editor.setOption('indentWithTabs', !value);
-        break;
-      case 'autoClosingBrackets':
-        editor.setOption('autoCloseBrackets', value as any);
-        break;
-      case 'rulers': {
-        const rulers = value as Array<number>;
-        (editor.setOption as any)(
-          'rulers',
-          rulers.map(column => {
-            return {
-              column,
-              className: 'jp-CodeMirror-ruler'
-            };
-          })
-        );
-        break;
-      }
-      case 'readOnly':
-        el.classList.toggle(READ_ONLY_CLASS, value as boolean);
-        (editor.setOption as any)(option, value);
-        break;
-      case 'fontFamily':
-        el.style.fontFamily = value as string;
-        break;
-      case 'fontSize':
-        el.style.setProperty('font-size', value ? value + 'px' : null);
-        break;
-      case 'lineHeight':
-        el.style.lineHeight = (value ? value.toString() : null) as any;
-        break;
-      case 'gutters':
-        (editor.setOption as any)(option, getActiveGutters(config));
-        break;
-      case 'lineNumbers':
-        (editor.setOption as any)(option, value);
-        editor.setOption('gutters', getActiveGutters(config));
-        break;
-      case 'codeFolding':
-        (editor.setOption as any)('foldGutter', value);
-        editor.setOption('gutters', getActiveGutters(config));
-        break;
-      case 'showTrailingSpace':
-        (editor.setOption as any)(option, value);
-        break;
-      default:
-        (editor.setOption as any)(option, value);
-        break;
-    }
+    return view;
   }
 }
-
-/**
- * Add a CodeMirror command to delete until previous non blanking space
- * character or first multiple of tabsize tabstop.
- */
-CodeMirrorEditor.addCommand(
-  'delSpaceToPrevTabStop',
-  Private.delSpaceToPrevTabStop
-);
-
-/**
- * Add a CodeMirror command to indent or insert a tab as appropriate.
- */
-CodeMirrorEditor.addCommand(
-  'indentMoreOrinsertTab',
-  Private.indentMoreOrinsertTab
-);
diff --git a/packages/codemirror/src/extension.ts b/packages/codemirror/src/extension.ts
new file mode 100644
index 000000000000..1d2fc7c55b87
--- /dev/null
+++ b/packages/codemirror/src/extension.ts
@@ -0,0 +1,928 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { closeBrackets, closeBracketsKeymap } from '@codemirror/autocomplete';
+import { defaultKeymap, indentLess } from '@codemirror/commands';
+import {
+  bracketMatching,
+  foldGutter,
+  indentOnInput,
+  indentUnit
+} from '@codemirror/language';
+import {
+  Compartment,
+  EditorState,
+  Extension,
+  Prec,
+  StateEffect
+} from '@codemirror/state';
+import {
+  crosshairCursor,
+  drawSelection,
+  EditorView,
+  highlightActiveLine,
+  highlightTrailingWhitespace,
+  highlightWhitespace,
+  KeyBinding,
+  keymap,
+  lineNumbers,
+  rectangularSelection,
+  scrollPastEnd,
+  tooltips
+} from '@codemirror/view';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { JSONExt, ReadonlyJSONObject } from '@lumino/coreutils';
+import { IObservableDisposable } from '@lumino/disposable';
+import { ISignal, Signal } from '@lumino/signaling';
+import { StateCommands } from './commands';
+import { customTheme, CustomTheme, rulers } from './extensions';
+import {
+  IConfigurableExtension,
+  IEditorExtensionFactory,
+  IEditorExtensionRegistry,
+  IEditorThemeRegistry,
+  IExtensionsHandler
+} from './token';
+
+/**
+ * The class name added to read only editor widgets.
+ */
+const READ_ONLY_CLASS = 'jp-mod-readOnly';
+
+/**
+ * Editor configuration handler options
+ */
+export interface IEditorHandlerOptions {
+  /**
+   * The base configuration options for all editor.
+   */
+  baseConfiguration?: Record<string, any>;
+  /**
+   * The configuration options for the editor.
+   *
+   * They take precendence over the base configuration.
+   */
+  config?: Record<string, any>;
+  /**
+   * Editor default extensions.
+   *
+   * Extension defined in the mapping without a base configuration
+   * will not be configurable.
+   */
+  defaultExtensions?: [string, IConfigurableExtension<any>][];
+}
+
+/**
+ * Editor configuration handler
+ *
+ * It stores the editor configuration and the editor extensions.
+ * It also allows to inject new extensions into an editor.
+ */
+export class ExtensionsHandler
+  implements IExtensionsHandler, IObservableDisposable
+{
+  constructor({
+    baseConfiguration,
+    config,
+    defaultExtensions
+  }: IEditorHandlerOptions = {}) {
+    this._baseConfig = baseConfiguration ?? {};
+    this._config = config ?? {};
+
+    this._configurableBuilderMap = new Map<string, IConfigurableExtension<any>>(
+      defaultExtensions
+    );
+
+    const configurables = Object.keys(this._config).concat(
+      Object.keys(this._baseConfig)
+    );
+    this._immutables = new Set(
+      [...this._configurableBuilderMap.keys()].filter(
+        key => !configurables.includes(key)
+      )
+    );
+  }
+
+  /**
+   * Signal triggered when the editor configuration changes.
+   * It provides the mapping of the new configuration (only those that changed).
+   *
+   * It should result in a call to `IExtensionsHandler.reconfigureExtensions`.
+   */
+  get configChanged(): ISignal<this, Record<string, any>> {
+    return this._configChanged;
+  }
+
+  /**
+   * A signal emitted when the object is disposed.
+   */
+  get disposed(): ISignal<this, void> {
+    return this._disposed;
+  }
+
+  /**
+   * Tests whether the object is disposed.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Dispose of the resources held by the object.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    this._disposed.emit();
+    Signal.clearData(this);
+  }
+
+  /**
+   * Get a config option for the editor.
+   */
+  getOption(option: string): unknown {
+    return this._config[option] ?? this._baseConfig[option];
+  }
+
+  /**
+   * Whether the option exists or not.
+   */
+  hasOption(option: string): boolean {
+    return (
+      Object.keys(this._config).includes(option) ||
+      Object.keys(this._baseConfig).includes(option)
+    );
+  }
+
+  /**
+   * Set a config option for the editor.
+   *
+   * You will need to reconfigure the editor extensions by listening
+   * to `IExtensionsHandler.configChanged`.
+   */
+  setOption(option: string, value: unknown): void {
+    // Don't bother setting the option if it is already the same.
+    if (this._config[option] !== value) {
+      this._config[option] = value;
+      this._configChanged.emit({ [option]: value });
+    }
+  }
+
+  /**
+   * Set a base config option for the editor.
+   *
+   * You will need to reconfigure the editor extensions by listening
+   * to `IExtensionsHandler.configChanged`.
+   */
+  setBaseOptions(options: Record<string, any>): void {
+    const changed = this._getChangedOptions(options, this._baseConfig);
+    if (changed.length > 0) {
+      this._baseConfig = options;
+      const customizedKeys = Object.keys(this._config);
+      const notOverridden = changed.filter(k => !customizedKeys.includes(k));
+      if (notOverridden.length > 0) {
+        this._configChanged.emit(
+          notOverridden.reduce<Record<string, any>>((agg, key) => {
+            agg[key] = this._baseConfig[key];
+            return agg;
+          }, {})
+        );
+      }
+    }
+  }
+
+  /**
+   * Set config options for the editor.
+   *
+   * You will need to reconfigure the editor extensions by listening
+   * to `EditorHandler.configChanged`.
+   *
+   * This method is preferred when setting several options. The
+   * options are set within an operation, which only performs
+   * the costly update at the end, and not after every option
+   * is set.
+   */
+  setOptions(options: Record<string, any>): void {
+    const changed = this._getChangedOptions(options, this._config);
+    if (changed.length > 0) {
+      this._config = { ...options };
+
+      this._configChanged.emit(
+        changed.reduce<Record<string, any>>((agg, key) => {
+          agg[key] = this._config[key] ?? this._baseConfig[key];
+          return agg;
+        }, {})
+      );
+    }
+  }
+
+  /**
+   * Reconfigures the extension mapped with key with the provided value.
+   *
+   * @param view Editor view
+   * @param key Parameter unique key
+   * @param value Parameter value to be applied
+   */
+  reconfigureExtension<T>(view: EditorView, key: string, value: T): void {
+    const effect = this.getEffect<T>(view.state, key, value);
+
+    if (effect) {
+      view.dispatch({
+        effects: [effect]
+      });
+    }
+  }
+
+  /**
+   * Reconfigures all the extensions mapped with the options from the
+   * provided partial configuration.
+   *
+   * @param view Editor view
+   * @param configuration Editor configuration
+   */
+  reconfigureExtensions(
+    view: EditorView,
+    configuration: Record<string, any>
+  ): void {
+    const effects = Object.keys(configuration)
+      .filter(key => this.has(key))
+      .map(key => this.getEffect(view.state, key, configuration[key]));
+
+    view.dispatch({
+      effects: effects.filter(
+        effect => effect !== null
+      ) as StateEffect<unknown>[]
+    });
+  }
+
+  /**
+   * Appends extensions to the top-level configuration of the
+   * editor.
+   *
+   * Injected extension cannot be removed.
+   *
+   * ### Notes
+   * You should prefer registering a IEditorExtensionFactory instead
+   * of this feature.
+   *
+   * @alpha
+   * @param view Editor view
+   * @param extension Editor extension to inject
+   */
+  injectExtension(view: EditorView, extension: Extension): void {
+    view.dispatch({
+      effects: StateEffect.appendConfig.of(extension)
+    });
+  }
+
+  /**
+   * Returns the list of initial extensions of an editor
+   * based on the configuration.
+   *
+   * @returns The initial editor extensions
+   */
+  getInitialExtensions(): Extension[] {
+    const configuration = { ...this._baseConfig, ...this._config };
+
+    const extensions = [...this._immutables]
+      .map(key => this.get(key)?.instance(undefined))
+      .filter(ext => ext) as Extension[];
+    for (const k of Object.keys(configuration)) {
+      const builder = this.get(k);
+      if (builder) {
+        const value = configuration[k];
+        extensions.push(builder.instance(value));
+      }
+    }
+
+    return extensions;
+  }
+
+  /**
+   * Get a extension builder
+   * @param key Extension unique identifier
+   * @returns The extension builder
+   */
+  protected get(key: string): IConfigurableExtension<any> | undefined {
+    return this._configurableBuilderMap.get(key);
+  }
+
+  /**
+   * Whether the editor has an extension for the identifier.
+   *
+   * @param key Extension unique identifier
+   * @returns Extension existence
+   */
+  protected has(key: string): boolean {
+    return this._configurableBuilderMap.has(key);
+  }
+
+  protected getEffect<T>(
+    state: EditorState,
+    key: string,
+    value: T
+  ): StateEffect<unknown> | null {
+    const builder = this.get(key);
+    return builder?.reconfigure(value) ?? null;
+  }
+
+  private _getChangedOptions(
+    newConfig: Record<string, any>,
+    oldConfig: Record<string, any>
+  ): string[] {
+    const changed = new Array<string>();
+    const newKeys = new Array<string>();
+    for (const [key, value] of Object.entries(newConfig)) {
+      newKeys.push(key);
+      if (oldConfig[key] !== value) {
+        changed.push(key);
+      }
+    }
+    // Add removed old keys
+    changed.push(...Object.keys(oldConfig).filter(k => !newKeys.includes(k)));
+
+    return changed;
+  }
+
+  private _baseConfig: Record<string, any>;
+  private _config: Record<string, any>;
+  private _configChanged = new Signal<this, Record<string, any>>(this);
+  private _configurableBuilderMap: Map<string, IConfigurableExtension<any>>;
+  private _disposed = new Signal<this, void>(this);
+  private _isDisposed = false;
+  private _immutables = new Set<string>();
+}
+
+/**
+ * CodeMirror extensions registry
+ */
+export class EditorExtensionRegistry implements IEditorExtensionRegistry {
+  /**
+   * Base editor configuration
+   *
+   * This is the default configuration optionally modified by the user;
+   * e.g. through user settings.
+   */
+  get baseConfiguration(): Record<string, any> {
+    return { ...this.defaultOptions, ...this._baseConfiguration };
+  }
+  set baseConfiguration(v: Record<string, any>) {
+    if (!JSONExt.deepEqual(v, this._baseConfiguration)) {
+      this._baseConfiguration = v;
+      for (const handler of this.handlers) {
+        handler.setBaseOptions(this.baseConfiguration);
+      }
+    }
+  }
+
+  /**
+   * Default editor configuration
+   *
+   * This is the default configuration as defined when extensions
+   * are registered.
+   */
+  get defaultConfiguration(): Record<string, any> {
+    // Only options with schema should be JSON serializable
+    // So we cannot use `JSONExt.deepCopy` on the default options.
+    return Object.freeze({ ...this.defaultOptions });
+  }
+
+  /**
+   * Editor configuration JSON schema
+   */
+  get settingsSchema(): ReadonlyJSONObject {
+    return Object.freeze(JSONExt.deepCopy(this.configurationSchema));
+  }
+
+  /**
+   * Add a default editor extension
+   *
+   * @template T Extension parameter type
+   * @param factory Extension factory
+   */
+  addExtension<T>(factory: IEditorExtensionFactory<T>): void {
+    if (this.configurationBuilder.has(factory.name)) {
+      throw new Error(`Extension named ${factory.name} is already registered.`);
+    }
+
+    this.configurationBuilder.set(factory.name, factory);
+    if (typeof factory.default != 'undefined') {
+      this.defaultOptions[factory.name] = factory.default;
+    }
+    if (factory.schema) {
+      this.configurationSchema[factory.name] = {
+        default: factory.default ?? null,
+        ...factory.schema
+      };
+      this.defaultOptions[factory.name] =
+        this.configurationSchema[factory.name].default;
+    }
+  }
+
+  /**
+   * Create a new extensions handler for an editor
+   *
+   * @param options Extensions options and initial editor configuration
+   */
+  createNew(
+    options: IEditorExtensionFactory.IOptions & {
+      /**
+       * The configuration options for the editor.
+       */
+      config?: Record<string, any>;
+    }
+  ): IExtensionsHandler {
+    const configuration = new Array<[string, IConfigurableExtension<any>]>();
+    for (const [key, builder] of this.configurationBuilder.entries()) {
+      const extension = builder.factory(options);
+      if (extension) {
+        configuration.push([key, extension]);
+      }
+    }
+
+    const handler = new ExtensionsHandler({
+      baseConfiguration: this.baseConfiguration,
+      config: options.config,
+      defaultExtensions: configuration
+    });
+
+    this.handlers.add(handler);
+    handler.disposed.connect(() => {
+      this.handlers.delete(handler);
+    });
+
+    return handler;
+  }
+  protected configurationBuilder = new Map<
+    string,
+    IEditorExtensionFactory<any>
+  >();
+  protected configurationSchema: Record<string, any> = {};
+
+  protected defaultOptions: Record<string, any> = {};
+  protected handlers = new Set<ExtensionsHandler>();
+  protected immutableExtensions = new Set<string>();
+  private _baseConfiguration: Record<string, any> = {};
+}
+
+/**
+ * Editor extension registry namespace
+ */
+export namespace EditorExtensionRegistry {
+  /**
+   * Dynamically configurable editor extension.
+   */
+  class ConfigurableExtension<T> implements IConfigurableExtension<T> {
+    /**
+     * Create a dynamic editor extension.
+     *
+     * @param builder Extension builder
+     */
+    constructor(builder: (value: T) => Extension) {
+      this._compartment = new Compartment();
+      this._builder = builder;
+    }
+
+    /**
+     * Create an editor extension for the provided value.
+     *
+     * @param value Editor extension parameter value
+     * @returns The editor extension
+     */
+    instance(value: T): Extension {
+      return this._compartment.of(this._builder(value));
+    }
+
+    /**
+     * Reconfigure an editor extension.
+     *
+     * @param value Editor extension value
+     * @returns Editor state effect
+     */
+    reconfigure(value: T): StateEffect<T> {
+      return this._compartment.reconfigure(
+        this._builder(value)
+      ) as StateEffect<T>;
+    }
+
+    private _compartment: Compartment;
+    private _builder: (value: T) => Extension;
+  }
+
+  /**
+   * Immutable editor extension class
+   */
+  class ImmutableExtension implements IConfigurableExtension<undefined> {
+    /**
+     * Create an immutable editor extension.
+     *
+     * @param extension Extension
+     */
+    constructor(extension: Extension) {
+      this._extension = extension;
+    }
+
+    /**
+     * Create an editor extension.
+     *
+     * @returns The editor extension
+     */
+    instance(): Extension {
+      return this._extension;
+    }
+
+    /**
+     * Reconfigure an editor extension.
+     *
+     * This is a no-op
+     */
+    reconfigure(): null {
+      // This is a no-op
+      return null;
+    }
+
+    private _extension: Extension;
+  }
+
+  /**
+   * Creates a dynamically configurable editor extension.
+   *
+   * @param builder Extension builder
+   * @return The extension
+   */
+  export function createConfigurableExtension<T>(
+    builder: (value: T) => Extension
+  ): IConfigurableExtension<T> {
+    return new ConfigurableExtension<T>(builder);
+  }
+
+  /**
+   * Creates a configurable extension returning
+   * one of two extensions depending on a boolean value.
+   *
+   * @param truthy Extension to apply when the parameter is true
+   * @param falsy Extension to apply when the parameter is false
+   * @return The extension
+   */
+  export function createConditionalExtension(
+    truthy: Extension,
+    falsy: Extension = []
+  ): IConfigurableExtension<boolean> {
+    return new ConfigurableExtension<boolean>(value =>
+      value ? truthy : falsy
+    );
+  }
+
+  /**
+   * Creates an immutable extension.
+   *
+   * @param extension Immutable extension
+   * @return The extension
+   */
+  export function createImmutableExtension(
+    extension: Extension
+  ): IConfigurableExtension<undefined> {
+    return new ImmutableExtension(extension);
+  }
+
+  /**
+   * Get the default editor extensions.
+   *
+   * @returns CodeMirror 6 extension factories
+   */
+  export function getDefaultExtensions(
+    options: {
+      themes?: IEditorThemeRegistry;
+      translator?: ITranslator | null;
+    } = {}
+  ): ReadonlyArray<Readonly<IEditorExtensionFactory<any>>> {
+    const { themes, translator } = options;
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+    const extensions: IEditorExtensionFactory<any>[] = [
+      Object.freeze({
+        name: 'autoClosingBrackets',
+        default: false,
+        factory: () => createConditionalExtension(closeBrackets()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Auto Closing Brackets')
+        }
+      }),
+      Object.freeze({
+        name: 'codeFolding',
+        default: false,
+        factory: () => createConditionalExtension(foldGutter()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Code Folding')
+        }
+      }),
+      Object.freeze({
+        name: 'cursorBlinkRate',
+        default: 1200,
+        factory: () =>
+          createConfigurableExtension((value: number) =>
+            drawSelection({ cursorBlinkRate: value })
+          ),
+        schema: {
+          type: 'number',
+          title: trans.__('Cursor blinking rate'),
+          description: trans.__(
+            'Half-period in milliseconds used for cursor blinking. The default blink rate is 1200ms. By setting this to zero, blinking can be disabled.'
+          )
+        }
+      }),
+      Object.freeze({
+        name: 'highlightActiveLine',
+        default: false,
+        factory: () => createConditionalExtension(highlightActiveLine()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Highlight the active line')
+        }
+      }),
+      Object.freeze({
+        name: 'highlightTrailingWhitespace',
+        default: false,
+        factory: () =>
+          createConditionalExtension(highlightTrailingWhitespace()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Highlight trailing white spaces')
+        }
+      }),
+      Object.freeze({
+        name: 'highlightWhitespace',
+        default: false,
+        factory: () => createConditionalExtension(highlightWhitespace()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Highlight white spaces')
+        }
+      }),
+      Object.freeze({
+        name: 'indentUnit',
+        default: '4',
+        factory: () =>
+          createConfigurableExtension<string>((value: string) =>
+            value == 'Tab'
+              ? indentUnit.of('\t')
+              : indentUnit.of(' '.repeat(parseInt(value, 10)))
+          ),
+        schema: {
+          type: 'string',
+          title: trans.__('Indentation unit'),
+          description: trans.__(
+            'The indentation is a `Tab` or the number of spaces. This defaults to 4 spaces.'
+          ),
+          enum: ['Tab', '1', '2', '4', '8']
+        }
+      }),
+      // Default keyboard shortcuts
+      // TODO at some point we may want to get this configurable
+      Object.freeze({
+        name: 'keymap',
+        default: [
+          ...defaultKeymap,
+          {
+            key: 'Tab',
+            run: StateCommands.indentMoreOrInsertTab,
+            shift: indentLess
+          }
+        ],
+        factory: () =>
+          createConfigurableExtension<KeyBinding[]>(value => keymap.of(value))
+      }),
+      Object.freeze({
+        name: 'lineNumbers',
+        default: true,
+        factory: () => createConditionalExtension(lineNumbers()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Line Numbers')
+        }
+      }),
+      Object.freeze({
+        name: 'lineWrap',
+        factory: () => createConditionalExtension(EditorView.lineWrapping),
+        default: true,
+        schema: {
+          type: 'boolean',
+          title: trans.__('Line Wrap')
+        }
+      }),
+      Object.freeze({
+        name: 'matchBrackets',
+        default: true,
+        factory: () =>
+          createConditionalExtension([
+            bracketMatching(),
+            // closeBracketsKeymap must have higher precedence over defaultKeymap
+            Prec.high(keymap.of(closeBracketsKeymap))
+          ]),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Match Brackets')
+        }
+      }),
+      Object.freeze({
+        name: 'rectangularSelection',
+        default: true,
+        factory: () =>
+          createConditionalExtension([
+            rectangularSelection(),
+            crosshairCursor()
+          ]),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Rectangular selection'),
+          description: trans.__(
+            'Rectangular (block) selection can be created by dragging the mouse pointer while holding the left mouse button and the Alt key. When the Alt key is pressed, a crosshair cursor will appear, indicating that the rectangular selection mode is active.'
+          )
+        }
+      }),
+      Object.freeze({
+        name: 'readOnly',
+        default: false,
+        factory: () =>
+          createConfigurableExtension((value: boolean) => [
+            EditorState.readOnly.of(value),
+            value
+              ? EditorView.editorAttributes.of({ class: READ_ONLY_CLASS })
+              : []
+          ])
+      }),
+      Object.freeze({
+        name: 'rulers',
+        default: [],
+        factory: () =>
+          createConfigurableExtension((value: number[]) =>
+            value.length > 0 ? rulers(value) : []
+          ),
+        schema: {
+          type: 'array',
+          title: trans.__('Rulers'),
+          items: {
+            type: 'number',
+            minimum: 0
+          }
+        }
+      }),
+      Object.freeze({
+        name: 'scrollPastEnd',
+        default: false,
+        factory: (options: IEditorExtensionFactory.IOptions) =>
+          options.inline ? null : createConditionalExtension(scrollPastEnd())
+      }),
+      Object.freeze({
+        name: 'smartIndent',
+        default: true,
+        factory: () => createConditionalExtension(indentOnInput()),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Smart Indentation')
+        }
+      }),
+      Object.freeze({
+        name: 'tabSize',
+        default: 4,
+        factory: () =>
+          createConfigurableExtension((value: number) =>
+            EditorState.tabSize.of(value)
+          ),
+        schema: {
+          type: 'number',
+          title: trans.__('Tab size')
+        }
+      }),
+      Object.freeze({
+        name: 'tooltips',
+        factory: () =>
+          // we need `absolute` due to use of `contain: layout` in lumino;
+          // we attach to body to ensure cursor collaboration tooltip is
+          // visible in first line of the editor.
+          createImmutableExtension(
+            tooltips({
+              position: 'absolute',
+              parent: document.body
+            })
+          )
+      }),
+      Object.freeze({
+        name: 'allowMultipleSelections',
+        default: true,
+        factory: () =>
+          createConfigurableExtension((value: boolean) =>
+            EditorState.allowMultipleSelections.of(value)
+          ),
+        schema: {
+          type: 'boolean',
+          title: trans.__('Multiple selections')
+        }
+      }),
+      Object.freeze({
+        name: 'customStyles',
+        factory: () =>
+          createConfigurableExtension<CustomTheme>(config =>
+            customTheme(config)
+          ),
+        default: {
+          fontFamily: null,
+          fontSize: null,
+          lineHeight: null
+        },
+        schema: {
+          title: trans.__('Custom editor styles'),
+          type: 'object',
+          properties: {
+            fontFamily: {
+              type: ['string', 'null'],
+              title: trans.__('Font Family')
+            },
+            fontSize: {
+              type: ['number', 'null'],
+              minimum: 1,
+              maximum: 100,
+              title: trans.__('Font Size')
+            },
+            lineHeight: {
+              type: ['number', 'null'],
+              title: trans.__('Line Height')
+            }
+          },
+          additionalProperties: false
+        }
+      })
+    ];
+
+    if (themes) {
+      extensions.push(
+        Object.freeze({
+          name: 'theme',
+          default: 'jupyter',
+          factory: () =>
+            createConfigurableExtension<string>(value =>
+              themes.getTheme(value)
+            ),
+          schema: {
+            type: 'string',
+            title: trans.__('Theme'),
+            description: trans.__('CodeMirror theme')
+          }
+        })
+      );
+    }
+
+    if (translator) {
+      extensions.push(
+        Object.freeze({
+          name: 'translation',
+          // The list of internal strings is available at https://codemirror.net/examples/translate/
+          default: {
+            // @codemirror/view
+            'Control character': trans.__('Control character'),
+            // @codemirror/commands
+            'Selection deleted': trans.__('Selection deleted'),
+            // @codemirror/language
+            'Folded lines': trans.__('Folded lines'),
+            'Unfolded lines': trans.__('Unfolded lines'),
+            to: trans.__('to'),
+            'folded code': trans.__('folded code'),
+            unfold: trans.__('unfold'),
+            'Fold line': trans.__('Fold line'),
+            'Unfold line': trans.__('Unfold line'),
+            // @codemirror/search
+            'Go to line': trans.__('Go to line'),
+            go: trans.__('go'),
+            Find: trans.__('Find'),
+            Replace: trans.__('Replace'),
+            next: trans.__('next'),
+            previous: trans.__('previous'),
+            all: trans.__('all'),
+            'match case': trans.__('match case'),
+            replace: trans.__('replace'),
+            'replace all': trans.__('replace all'),
+            close: trans.__('close'),
+            'current match': trans.__('current match'),
+            'replaced $ matches': trans.__('replaced $ matches'),
+            'replaced match on line $': trans.__('replaced match on line $'),
+            'on line': trans.__('on line'),
+            // @codemirror/autocomplete
+            Completions: trans.__('Completions'),
+            // @codemirror/lint
+            Diagnostics: trans.__('Diagnostics'),
+            'No diagnostics': trans.__('No diagnostics')
+          },
+          factory: () =>
+            createConfigurableExtension<Record<string, string>>(value =>
+              EditorState.phrases.of(value)
+            )
+        })
+      );
+    }
+
+    return extensions;
+  }
+}
diff --git a/packages/codemirror/src/extensions/customStyle.ts b/packages/codemirror/src/extensions/customStyle.ts
new file mode 100644
index 000000000000..642e50309687
--- /dev/null
+++ b/packages/codemirror/src/extensions/customStyle.ts
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { combineConfig, Extension, Facet } from '@codemirror/state';
+import { EditorView } from '@codemirror/view';
+
+/**
+ * Editor customizable styles
+ */
+export type CustomTheme = {
+  /**
+   * Font family
+   */
+  fontFamily: string | null;
+  /**
+   * Font size
+   */
+  fontSize: number | null;
+  /**
+   * Line height
+   */
+  lineHeight: number | null;
+};
+
+/**
+ * Custom theme configuration
+ *
+ * The first non-null value takes precedence
+ */
+const customThemeConfig = Facet.define<CustomTheme, CustomTheme>({
+  combine(configs: CustomTheme[]) {
+    return combineConfig(
+      configs,
+      {
+        fontFamily: null,
+        fontSize: null,
+        lineHeight: null
+      },
+      {
+        fontFamily: (a, b) => a ?? b,
+        fontSize: (a, b) => a ?? b,
+        lineHeight: (a, b) => a ?? b
+      }
+    );
+  }
+});
+
+function setEditorStyle(view: EditorView): Record<string, string> | null {
+  const { fontFamily, fontSize, lineHeight } =
+    view.state.facet(customThemeConfig);
+
+  let style = '';
+  if (fontSize) {
+    style += `font-size: ${fontSize}px !important;`;
+  }
+  if (fontFamily) {
+    style += `font-family: ${fontFamily} !important;`;
+  }
+  if (lineHeight) {
+    style += `line-height: ${lineHeight.toString()} !important`;
+  }
+
+  return { style: style };
+}
+
+/**
+ * Get the extension to customize an editor theme.
+ *
+ * @param config Theme customization
+ * @returns Editor extension
+ */
+export function customTheme(config: CustomTheme): Extension {
+  return [
+    customThemeConfig.of(config),
+    EditorView.editorAttributes.of(setEditorStyle)
+  ];
+}
diff --git a/packages/codemirror/src/extensions/index.ts b/packages/codemirror/src/extensions/index.ts
new file mode 100644
index 000000000000..65a166be9138
--- /dev/null
+++ b/packages/codemirror/src/extensions/index.ts
@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+export * from './customStyle';
+export * from './ipython-md';
+export * from './rulers';
+export * from './ybinding';
diff --git a/packages/codemirror/src/extensions/ipython-md.ts b/packages/codemirror/src/extensions/ipython-md.ts
new file mode 100644
index 000000000000..6ae6ee18665c
--- /dev/null
+++ b/packages/codemirror/src/extensions/ipython-md.ts
@@ -0,0 +1,158 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { parseMixed, Parser } from '@lezer/common';
+import { tags } from '@lezer/highlight';
+import {
+  DelimiterType,
+  InlineContext,
+  MarkdownConfig,
+  NodeSpec
+} from '@lezer/markdown';
+
+// Mathematical expression delimiters
+const INLINE_MATH_DOLLAR = 'InlineMathDollar';
+const INLINE_MATH_BRACKET = 'InlineMathBracket';
+const BLOCK_MATH_DOLLAR = 'BlockMathDollar';
+const BLOCK_MATH_BRACKET = 'BlockMathBracket';
+
+/**
+ * Lengh of the delimiter for a math expression
+ */
+const DELIMITER_LENGTH: Record<string, number> = {
+  [INLINE_MATH_DOLLAR]: 1,
+  [INLINE_MATH_BRACKET]: 3,
+  [BLOCK_MATH_DOLLAR]: 2,
+  [BLOCK_MATH_BRACKET]: 3
+};
+
+/**
+ * Delimiters for math expressions
+ */
+// Delimiters must be defined as constant because they are used in object match tests
+const DELIMITERS = Object.keys(DELIMITER_LENGTH).reduce<
+  Record<string, DelimiterType>
+>((agg, name) => {
+  agg[name] = { mark: `${name}Mark`, resolve: name };
+  return agg;
+}, {});
+
+/**
+ * Define an IPython mathematical expression parser for Markdown.
+ *
+ * @param latexParser CodeMirror {@link Parser} for LaTeX mathematical expression
+ * @returns Markdown extension
+ */
+export function parseMathIPython(latexParser?: Parser): MarkdownConfig {
+  const defineNodes = new Array<NodeSpec>();
+  Object.keys(DELIMITER_LENGTH).forEach(name => {
+    defineNodes.push(
+      {
+        name,
+        style: tags.emphasis
+      },
+      { name: `${name}Mark`, style: tags.processingInstruction }
+    );
+  });
+  return {
+    defineNodes,
+    parseInline: [
+      {
+        name: BLOCK_MATH_DOLLAR,
+        parse(cx: InlineContext, next: number, pos: number): number {
+          if (next != 36 /* '$' */ || cx.char(pos + 1) != 36) {
+            return -1;
+          }
+
+          return cx.addDelimiter(
+            DELIMITERS[BLOCK_MATH_DOLLAR],
+            pos,
+            pos + DELIMITER_LENGTH[BLOCK_MATH_DOLLAR],
+            true,
+            true
+          );
+        }
+      },
+      {
+        name: INLINE_MATH_DOLLAR,
+        parse(cx: InlineContext, next: number, pos: number): number {
+          if (next != 36 /* '$' */ || cx.char(pos + 1) == 36) {
+            return -1;
+          }
+
+          return cx.addDelimiter(
+            DELIMITERS[INLINE_MATH_DOLLAR],
+            pos,
+            pos + DELIMITER_LENGTH[INLINE_MATH_DOLLAR],
+            true,
+            true
+          );
+        }
+      },
+      // Inline expression wrapped in \\( ... \\)
+      {
+        name: INLINE_MATH_BRACKET,
+        before: 'Escape', // Search for this delimiter before the escape character
+        parse(cx: InlineContext, next: number, pos: number): number {
+          if (
+            next != 92 /* '\' */ ||
+            cx.char(pos + 1) != 92 ||
+            ![40 /* '(' */, 41 /* ')' */].includes(cx.char(pos + 2))
+          ) {
+            return -1;
+          }
+
+          return cx.addDelimiter(
+            DELIMITERS[INLINE_MATH_BRACKET],
+            pos,
+            pos + DELIMITER_LENGTH[INLINE_MATH_BRACKET],
+            cx.char(pos + 2) == 40,
+            cx.char(pos + 2) == 41
+          );
+        }
+      },
+      // Block expression wrapped in \\[ ... \\]
+      {
+        name: BLOCK_MATH_BRACKET,
+        before: 'Escape', // Search for this delimiter before the escape character
+        parse(cx: InlineContext, next: number, pos: number): number {
+          if (
+            next != 92 /* '\' */ ||
+            cx.char(pos + 1) != 92 ||
+            ![91 /* '[' */, 93 /* ']' */].includes(cx.char(pos + 2))
+          ) {
+            return -1;
+          }
+
+          return cx.addDelimiter(
+            DELIMITERS[BLOCK_MATH_BRACKET],
+            pos,
+            pos + DELIMITER_LENGTH[BLOCK_MATH_BRACKET],
+            cx.char(pos + 2) == 91,
+            cx.char(pos + 2) == 93
+          );
+        }
+      }
+    ],
+    wrap: latexParser
+      ? parseMixed((node, input) => {
+          // Test if the node type is one of the math expression
+          const delimiterLength = DELIMITER_LENGTH[node.type.name];
+          if (delimiterLength) {
+            return {
+              parser: latexParser,
+              // Remove delimiter from LaTeX parser otherwise it won't be highlighted
+              overlay: [
+                {
+                  from: node.from + delimiterLength,
+                  to: node.to - delimiterLength
+                }
+              ]
+            };
+          }
+
+          return null;
+        })
+      : undefined
+  };
+}
diff --git a/packages/codemirror/src/extensions/rulers.ts b/packages/codemirror/src/extensions/rulers.ts
new file mode 100644
index 000000000000..927c0f08ba1e
--- /dev/null
+++ b/packages/codemirror/src/extensions/rulers.ts
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// Inspired by https://discuss.codemirror.net/t/how-to-implement-ruler/4616/
+
+import { Extension, Facet } from '@codemirror/state';
+import { EditorView, ViewPlugin, ViewUpdate } from '@codemirror/view';
+import { JSONExt } from '@lumino/coreutils';
+
+const RULERS_CLASSNAME = 'cm-rulers';
+
+/**
+ * Rulers style
+ */
+const baseTheme = EditorView.baseTheme({
+  [`.${RULERS_CLASSNAME}`]: { borderRight: '1px dotted gray', opacity: 0.7 }
+});
+
+/**
+ * Rulers facet
+ */
+const rulerConfig = Facet.define<number[], number[]>({
+  // Merge all unique values
+  combine(value) {
+    const final = value.reduce(
+      (agg, arr) =>
+        agg.concat(
+          // Check value is not in aggregate nor multiple time in the array.
+          arr.filter((v, idx) => !agg.includes(v) && idx == arr.lastIndexOf(v))
+        ),
+      []
+    );
+    return final;
+  }
+});
+
+/**
+ * View plugin displaying the rulers
+ */
+const plugin = ViewPlugin.fromClass(
+  class {
+    constructor(view: EditorView) {
+      this.rulersContainer = view.dom.appendChild(
+        document.createElement('div')
+      );
+      this.rulersContainer.style.cssText = `
+                position: absolute;
+                left: 0;
+                top: 0;
+                width: 100%;
+                height: 100%;
+                pointer-events: none;
+                overflow: hidden;
+            `;
+
+      const defaultCharacterWidth = view.defaultCharacterWidth;
+      const widths = view.state.facet(rulerConfig);
+      const guttersWidths =
+        view.scrollDOM.querySelector('.cm-gutters')?.clientWidth ?? 0;
+      this.rulers = widths.map(width => {
+        const ruler = this.rulersContainer.appendChild(
+          document.createElement('div')
+        );
+        ruler.classList.add(RULERS_CLASSNAME);
+        ruler.style.cssText = `
+                position: absolute;
+                left: ${guttersWidths + width * defaultCharacterWidth}px;
+                height: 100%;
+            `;
+        // FIXME: This should be equal to the amount of padding on a line.
+        // This value should be extracted from CodeMirror rather than hardcoded.
+        ruler.style.width = '6px';
+
+        return ruler;
+      });
+    }
+
+    update(update: ViewUpdate) {
+      const widths = update.view.state.facet(rulerConfig);
+
+      if (
+        update.viewportChanged ||
+        update.geometryChanged ||
+        !JSONExt.deepEqual(widths, update.startState.facet(rulerConfig))
+      ) {
+        const guttersWidth =
+          update.view.scrollDOM.querySelector('.cm-gutters')?.clientWidth ?? 0;
+        const defaultCharacterWidth = update.view.defaultCharacterWidth;
+        this.rulers.forEach((ruler, rulerIdx) => {
+          ruler.style.left = `${
+            guttersWidth + widths[rulerIdx] * defaultCharacterWidth
+          }px`;
+        });
+      }
+    }
+
+    destroy() {
+      this.rulers.forEach(ruler => {
+        ruler.remove();
+      });
+      this.rulersContainer.remove();
+    }
+
+    rulersContainer: HTMLDivElement;
+    rulers: HTMLDivElement[];
+  }
+);
+
+/**
+ * Extension for CodeMirror 6 displaying rulers.
+ *
+ * @param value Rulers position
+ * @returns CodeMirror 6 extension
+ */
+export function rulers(value: number[]): Extension {
+  return [baseTheme, rulerConfig.of(value), plugin];
+}
diff --git a/packages/codemirror/src/extensions/ybinding.ts b/packages/codemirror/src/extensions/ybinding.ts
new file mode 100644
index 000000000000..ba8c1e0e333a
--- /dev/null
+++ b/packages/codemirror/src/extensions/ybinding.ts
@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ *
+ * Binding for yjs and codemirror
+ *
+ * It is a simplification of https://github.com/yjs/y-codemirror.next
+ * licensed under MIT License by Kevin Jahns
+ */
+import {
+  Annotation,
+  EditorSelection,
+  Extension,
+  Facet,
+  SelectionRange
+} from '@codemirror/state';
+import { EditorView, ViewPlugin, ViewUpdate } from '@codemirror/view';
+import type {
+  RelativePosition,
+  Text,
+  Transaction,
+  UndoManager,
+  YTextEvent
+} from 'yjs';
+import {
+  createAbsolutePositionFromRelativePosition,
+  createRelativePositionFromJSON,
+  createRelativePositionFromTypeIndex,
+  relativePositionToJSON
+} from 'yjs';
+
+export type ID = {
+  client: number;
+  clock: number;
+};
+
+export type Position = {
+  type: ID | null;
+  tname: string | null;
+  item: ID | null;
+  assoc: number;
+};
+
+export type Range = {
+  yanchor: Position;
+  yhead: Position;
+};
+
+/**
+ * Defines a range on text using relative positions that can be transformed back to
+ * absolute positions. (https://docs.yjs.dev/api/relative-positions)
+ */
+export class YRange {
+  /**
+   * @param yanchor
+   * @param yhead
+   */
+  constructor(
+    public yanchor: RelativePosition,
+    public yhead: RelativePosition
+  ) {}
+
+  /**
+   * Convert the position to JSON
+   */
+  toJSON(): Range {
+    return {
+      yanchor: relativePositionToJSON(this.yanchor),
+      yhead: relativePositionToJSON(this.yhead)
+    };
+  }
+
+  /**
+   * Convert a JSON range to a YRange
+   * @param json Range to convert
+   * @return The range as YRange
+   */
+  static fromJSON(json: Range): YRange {
+    return new YRange(
+      createRelativePositionFromJSON(json.yanchor),
+      createRelativePositionFromJSON(json.yhead)
+    );
+  }
+}
+
+/**
+ * Yjs binding configuration
+ */
+export class YSyncConfig {
+  /**
+   * Create a new binding configuration
+   *
+   * @param ytext Yjs text to synchronize
+   */
+  constructor(public ytext: Text) {}
+
+  /**
+   * Helper function to transform an absolute index position to a Yjs-based relative position
+   * (https://docs.yjs.dev/api/relative-positions).
+   *
+   * A relative position can be transformed back to an absolute position even after the document has changed. The position is
+   * automatically adapted. This does not require any position transformations. Relative positions are computed based on
+   * the internal Yjs document model. Peers that share content through Yjs are guaranteed that their positions will always
+   * synced up when using relative positions.
+   *
+   * ```js
+   * import { ySyncFacet } from 'y-codemirror'
+   *
+   * ..
+   * const ysync = view.state.facet(ySyncFacet)
+   * // transform an absolute index position to a ypos
+   * const ypos = ysync.getYPos(3)
+   * // transform the ypos back to an absolute position
+   * ysync.fromYPos(ypos) // => 3
+   * ```
+   *
+   * It cannot be guaranteed that absolute index positions can be synced up between peers.
+   * This might lead to undesired behavior when implementing features that require that all peers see the
+   * same marked range (e.g. a comment plugin).
+   *
+   * @param pos
+   * @param assoc
+   */
+  toYPos(pos: number, assoc = 0): RelativePosition {
+    return createRelativePositionFromTypeIndex(this.ytext, pos, assoc);
+  }
+
+  /**
+   * @param rpos
+   */
+  fromYPos(rpos: RelativePosition | Record<string, any>) {
+    const pos = createAbsolutePositionFromRelativePosition(
+      createRelativePositionFromJSON(rpos),
+      this.ytext.doc!
+    );
+    if (pos == null || pos.type !== this.ytext) {
+      throw new Error(
+        '[y-codemirror] The position you want to retrieve was created by a different document'
+      );
+    }
+    return {
+      pos: pos.index,
+      assoc: pos.assoc
+    };
+  }
+
+  /**
+   * @param range
+   * @return
+   */
+  toYRange(range: SelectionRange): YRange {
+    const assoc = range.assoc;
+    const yanchor = this.toYPos(range.anchor, assoc);
+    const yhead = this.toYPos(range.head, assoc);
+    return new YRange(yanchor, yhead);
+  }
+
+  /**
+   * @param yrange
+   */
+  fromYRange(yrange: YRange): SelectionRange {
+    const anchor = this.fromYPos(yrange.yanchor);
+    const head = this.fromYPos(yrange.yhead);
+    if (anchor.pos === head.pos) {
+      return EditorSelection.cursor(head.pos, head.assoc);
+    }
+    return EditorSelection.range(anchor.pos, head.pos);
+  }
+}
+
+/**
+ * Yjs binding facet
+ */
+export const ySyncFacet = Facet.define<YSyncConfig, YSyncConfig>({
+  combine(inputs) {
+    return inputs[inputs.length - 1];
+  }
+});
+
+/**
+ * Yjs binding annotation
+ *
+ * It is used to track the origin of the document changes
+ */
+export const ySyncAnnotation = Annotation.define<YSyncConfig>();
+
+/**
+ * Yjs binding view plugin to synchronize the
+ * editor state with the Yjs document.
+ */
+export const ySync = ViewPlugin.fromClass(
+  class {
+    constructor(view: EditorView) {
+      this.conf = view.state.facet(ySyncFacet);
+      this._observer = (event: YTextEvent, tr: Transaction) => {
+        if (tr.origin !== this.conf) {
+          const delta = event.delta;
+          const changes: any[] = [];
+          let pos = 0;
+          for (let i = 0; i < delta.length; i++) {
+            const d = delta[i];
+            if (d.insert != null) {
+              changes.push({ from: pos, to: pos, insert: d.insert });
+            } else if (d.delete != null) {
+              changes.push({ from: pos, to: pos + d.delete, insert: '' });
+              pos += d.delete;
+            } else {
+              pos += d.retain ?? 0;
+            }
+          }
+          view.dispatch({
+            changes,
+            // Specified the changes origin to not loop when synchronizing
+            annotations: [ySyncAnnotation.of(this.conf)]
+          });
+        }
+      };
+      this._ytext = this.conf.ytext;
+      this._ytext.observe(this._observer);
+    }
+
+    update(update: ViewUpdate) {
+      if (
+        !update.docChanged ||
+        (update.transactions.length > 0 &&
+          update.transactions[0].annotation(ySyncAnnotation) === this.conf)
+      ) {
+        return;
+      }
+
+      const ytext = this.conf.ytext;
+      ytext.doc!.transact(() => {
+        /**
+         * This variable adjusts the fromA position to the current position in the Y.Text type.
+         */
+        let adj = 0;
+        update.changes.iterChanges((fromA, toA, fromB, toB, insert) => {
+          const insertText = insert.sliceString(0, insert.length, '\n');
+          if (fromA !== toA) {
+            ytext.delete(fromA + adj, toA - fromA);
+          }
+          if (insertText.length > 0) {
+            ytext.insert(fromA + adj, insertText);
+          }
+          adj += insertText.length - (toA - fromA);
+        });
+        // Set the configuration as origin to not loop when synchronizing
+      }, this.conf);
+    }
+
+    destroy() {
+      this._ytext.unobserve(this._observer);
+    }
+
+    conf: YSyncConfig;
+    _observer: (event: YTextEvent, tr: Transaction) => void;
+    _ytext: Text;
+  }
+);
+
+/**
+ * Extension for CodeMirror 6 binding the Yjs text (source of truth)
+ * and the editor state.
+ *
+ * @param ytext Yjs text to bind
+ * @param undoManager Yjs text undo manager
+ * @returns CodeMirror 6 extension
+ */
+export function ybinding({
+  ytext,
+  undoManager
+}: {
+  ytext: Text;
+  undoManager?: UndoManager;
+}): Extension {
+  const ySyncConfig = new YSyncConfig(ytext);
+  // We don't need the undo manager extension as in y-codemirror.next
+  // because we deal with undo/redo with our own keyboard shortcut mechanism.
+  return [
+    ySyncFacet.of(ySyncConfig),
+    ySync,
+    // We need to add a new origin to the undo manager to ensure text updates
+    // are tracked.
+    undoManager
+      ? ViewPlugin.define(() => {
+          undoManager.addTrackedOrigin(ySyncConfig);
+          return {
+            destroy: () => {
+              undoManager.removeTrackedOrigin(ySyncConfig);
+            }
+          };
+        })
+      : []
+  ];
+}
diff --git a/packages/codemirror/src/factory.ts b/packages/codemirror/src/factory.ts
index 613398bad2e1..00010e0de55f 100644
--- a/packages/codemirror/src/factory.ts
+++ b/packages/codemirror/src/factory.ts
@@ -3,7 +3,17 @@
 
 import { CodeEditor, IEditorFactoryService } from '@jupyterlab/codeeditor';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { EditorExtensionRegistry } from './extension';
 import { CodeMirrorEditor } from './editor';
+import { EditorLanguageRegistry } from './language';
+import {
+  IEditorExtensionFactory,
+  IEditorExtensionRegistry,
+  IEditorFactoryOptions,
+  IEditorLanguageRegistry
+} from './token';
+import { EditorView, keymap } from '@codemirror/view';
+import { searchKeymap } from '@codemirror/search';
 
 /**
  * CodeMirror editor factory.
@@ -12,68 +22,79 @@ export class CodeMirrorEditorFactory implements IEditorFactoryService {
   /**
    * Construct an IEditorFactoryService for CodeMirrorEditors.
    */
-  constructor(
-    defaults: Partial<CodeMirrorEditor.IConfig> = {},
-    translator?: ITranslator
-  ) {
-    this.translator = translator || nullTranslator;
-    this.inlineCodeMirrorConfig = {
-      ...CodeMirrorEditor.defaultConfig,
-      extraKeys: {
-        'Cmd-Right': 'goLineRight',
-        End: 'goLineRight',
-        'Cmd-Left': 'goLineLeft',
-        Tab: 'indentMoreOrinsertTab',
-        'Shift-Tab': 'indentLess',
-        'Cmd-/': cm => cm.toggleComment({ indent: true }),
-        'Ctrl-/': cm => cm.toggleComment({ indent: true }),
-        'Ctrl-G': 'find',
-        'Cmd-G': 'find'
-      },
-      ...defaults
-    };
+  constructor(options: IEditorFactoryOptions = {}) {
+    this.languages = options.languages ?? new EditorLanguageRegistry();
+    this.extensions = options.extensions ?? new EditorExtensionRegistry();
+    this.translator = options.translator ?? nullTranslator;
+    this.inlineCodeMirrorConfig = {};
     this.documentCodeMirrorConfig = {
-      ...CodeMirrorEditor.defaultConfig,
-      extraKeys: {
-        Tab: 'indentMoreOrinsertTab',
-        'Shift-Tab': 'indentLess',
-        'Cmd-/': cm => cm.toggleComment({ indent: true }),
-        'Ctrl-/': cm => cm.toggleComment({ indent: true }),
-        'Shift-Enter': () => {
-          /* no-op */
-        }
-      },
       lineNumbers: true,
-      scrollPastEnd: true,
-      ...defaults
+      scrollPastEnd: true
     };
   }
 
   /**
    * Create a new editor for inline code.
    */
-  newInlineEditor = (options: CodeEditor.IOptions) => {
+  readonly newInlineEditor = (
+    options: CodeEditor.IOptions
+  ): CodeMirrorEditor => {
     options.host.dataset.type = 'inline';
-    return new CodeMirrorEditor({
+    return this.newEditor({
       ...options,
       config: { ...this.inlineCodeMirrorConfig, ...(options.config || {}) },
-      translator: this.translator
+      inline: true,
+      // FIXME the search keymap should be added in the search plugin
+      extensions: [keymap.of(searchKeymap)].concat(options.extensions ?? [])
     });
   };
 
   /**
    * Create a new editor for a full document.
    */
-  newDocumentEditor = (options: CodeEditor.IOptions) => {
+  readonly newDocumentEditor = (
+    options: CodeEditor.IOptions
+  ): CodeMirrorEditor => {
     options.host.dataset.type = 'document';
-    return new CodeMirrorEditor({
+    return this.newEditor({
       ...options,
-      config: { ...this.documentCodeMirrorConfig, ...(options.config || {}) },
-      translator: this.translator
+      config: { ...this.documentCodeMirrorConfig, ...(options.config ?? {}) },
+      inline: false,
+      extensions: [
+        keymap.of([
+          {
+            key: 'Shift-Enter',
+            run: (target: EditorView) => {
+              return true;
+            }
+          }
+        ])
+      ].concat(options.extensions ?? [])
     });
   };
 
+  /**
+   * Create a new editor
+   *
+   * @param options Editor options
+   * @returns The editor
+   */
+  protected newEditor(
+    options: CodeEditor.IOptions & IEditorExtensionFactory.IOptions
+  ): CodeMirrorEditor {
+    const editor = new CodeMirrorEditor({
+      extensionsRegistry: this.extensions,
+      languages: this.languages,
+      translator: this.translator,
+      ...options
+    });
+
+    return editor;
+  }
+
+  protected extensions: IEditorExtensionRegistry;
+  protected languages: IEditorLanguageRegistry;
   protected translator: ITranslator;
-  protected inlineCodeMirrorConfig: Partial<CodeMirrorEditor.IConfig>;
-  protected documentCodeMirrorConfig: Partial<CodeMirrorEditor.IConfig>;
+  protected inlineCodeMirrorConfig: Record<string, any>;
+  protected documentCodeMirrorConfig: Record<string, any>;
 }
diff --git a/packages/codemirror/src/index.ts b/packages/codemirror/src/index.ts
index 68fd3d8b7dd7..33b1c4d60ed0 100644
--- a/packages/codemirror/src/index.ts
+++ b/packages/codemirror/src/index.ts
@@ -5,33 +5,13 @@
  * @module codemirror
  */
 
-import { IEditorServices } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditorFactory } from './factory';
-import { CodeMirrorMimeTypeService } from './mimetype';
-
+export * from './commands';
 export * from './editor';
+export * from './extension';
+export * from './extensions';
 export * from './factory';
+export * from './language';
 export * from './mimetype';
-export * from './mode';
-export * from './syntaxstatus';
-export * from './tokens';
-
-/**
- * The default editor services.
- */
-export const editorServices: IEditorServices = {
-  factoryService: new CodeMirrorEditorFactory(),
-  mimeTypeService: new CodeMirrorMimeTypeService()
-};
-
-/**
- * FIXME-TRANS: Maybe an option to be able to pass a translator to the factories?
- *
-
-export function getEditorServices(translator: ITranslator): IEditorServices {
-  return {
-    factoryService: new CodeMirrorEditorFactory({}, translator),
-    mimeTypeService: new CodeMirrorMimeTypeService(translator)
-  };
-}
- */
+export * from './searchprovider';
+export * from './theme';
+export * from './token';
diff --git a/packages/codemirror/src/language.ts b/packages/codemirror/src/language.ts
new file mode 100644
index 000000000000..3bafd287a416
--- /dev/null
+++ b/packages/codemirror/src/language.ts
@@ -0,0 +1,1726 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  LanguageDescription,
+  LanguageSupport,
+  LRLanguage,
+  StreamLanguage,
+  StreamParser
+} from '@codemirror/language';
+import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
+import { PathExt } from '@jupyterlab/coreutils';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { buildParser } from '@lezer/generator';
+import { highlightTree } from '@lezer/highlight';
+
+import { jupyterHighlightStyle } from './theme';
+import { IEditorLanguage, IEditorLanguageRegistry } from './token';
+
+/**
+ * CodeMirror language registry
+ */
+export class EditorLanguageRegistry implements IEditorLanguageRegistry {
+  private _modeList: IEditorLanguage[] = [];
+
+  constructor() {
+    // Add default language text/plain -> No expressions to parse
+    this.addLanguage({
+      name: 'none',
+      mime: 'text/plain',
+      support: new LanguageSupport(
+        // Create a dummy parser that as no expression to parse
+        LRLanguage.define({ parser: buildParser('@top Program { }') })
+      )
+    });
+  }
+
+  /**
+   * Register a new language for CodeMirror
+   *
+   * @param language Language to register
+   */
+  addLanguage(language: IEditorLanguage): void {
+    const info =
+      this.findByName(language.name) ?? this.findByMIME(language.mime, true);
+    if (info) {
+      throw new Error(`${language.mime} already registered`);
+    }
+    this._modeList.push(this.makeSpec(language));
+  }
+
+  /**
+   * Ensure a codemirror mode is available by name or Codemirror spec.
+   *
+   * @param language - The mode to ensure.  If it is a string, uses [findBest]
+   *   to get the appropriate spec.
+   *
+   * @returns A promise that resolves when the mode is available.
+   */
+  async getLanguage(
+    language: string | IEditorLanguage
+  ): Promise<IEditorLanguage | null> {
+    const spec = this.findBest(language);
+    if (spec && !spec.support) {
+      spec.support = await spec.load!();
+    }
+    return spec;
+  }
+
+  /**
+   * Get the raw list of available modes specs.
+   *
+   * @returns The available modes
+   */
+  getLanguages(): IEditorLanguage[] {
+    return [...this._modeList] as IEditorLanguage[];
+  }
+
+  /**
+   * Find a codemirror mode by MIME.
+   *
+   * @param mime Mime type to look for
+   * @param strict Whether xml and json should be assimilated to the generic mimetype
+   * @returns The mode or null
+   */
+  findByMIME(
+    mime: string | readonly string[],
+    strict = false
+  ): IEditorLanguage | null {
+    if (Array.isArray(mime)) {
+      for (let i = 0; i < mime.length; i++) {
+        const spec = this.findByMIME(mime[i]);
+        if (spec) return spec;
+      }
+      return null;
+    }
+    mime = (mime as string).toLowerCase();
+    for (let i = 0; i < this._modeList.length; i++) {
+      let info = this._modeList[i];
+      if (Array.isArray(info.mime)) {
+        for (let j = 0; j < info.mime.length; j++) {
+          if (info.mime[j] == mime) {
+            return info;
+          }
+        }
+      } else if (info.mime == mime) {
+        return info;
+      }
+    }
+    if (!strict) {
+      if (/\+xml$/.test(mime)) return this.findByMIME('application/xml');
+      if (/\+json$/.test(mime)) return this.findByMIME('application/json');
+    }
+    return null;
+  }
+
+  /**
+   * Find a codemirror mode by name.
+   *
+   * @param name The mode name
+   * @returns The mode or null
+   */
+  findByName(name: string): IEditorLanguage | null {
+    name = name.toLowerCase();
+    for (let i = 0; i < this._modeList.length; i++) {
+      let info = this._modeList[i];
+      if (info.name.toLowerCase() == name) return info;
+      if (info.alias) {
+        for (let j = 0; j < info.alias.length; j++) {
+          if (info.alias[j].toLowerCase() == name) {
+            return info;
+          }
+        }
+      }
+    }
+    return null;
+  }
+
+  /**
+   * Find a codemirror mode by extension.
+   *
+   * @param ext The extension name
+   * @returns The mode or null
+   */
+  findByExtension(ext: string | readonly string[]): IEditorLanguage | null {
+    if (Array.isArray(ext)) {
+      for (let i = 0; i < ext.length; i++) {
+        const spec = this.findByExtension(ext[i]);
+        if (spec) return spec;
+      }
+      return null;
+    }
+    ext = (ext as string).toLowerCase();
+    for (let i = 0; i < this._modeList.length; i++) {
+      let info = this._modeList[i];
+      for (let j = 0; j < info.extensions!.length; j++) {
+        if (info.extensions![j].toLowerCase() == ext) {
+          return info;
+        }
+      }
+    }
+    return null;
+  }
+
+  /**
+   * Find a codemirror mode by filename.
+   *
+   * @param name File name
+   * @returns The mode or null
+   */
+  findByFileName(name: string): IEditorLanguage | null {
+    const basename = PathExt.basename(name);
+    for (let i = 0; i < this._modeList.length; i++) {
+      let info = this._modeList[i];
+      if (info.filename && info.filename.test(basename)) {
+        return info;
+      }
+    }
+    let dot = basename.lastIndexOf('.');
+    let ext = dot > -1 && basename.substring(dot + 1, basename.length);
+    if (ext) {
+      return this.findByExtension(ext);
+    }
+    return null;
+  }
+
+  /**
+   * Find a codemirror mode by name or CodeMirror spec.
+   *
+   * @param language The CodeMirror mode
+   * @param fallback Whether to fallback to default mimetype spec or not
+   * @returns The mode or null
+   */
+  findBest(
+    language: string | IEditorLanguage,
+    fallback = true
+  ): IEditorLanguage | null {
+    const modename = typeof language === 'string' ? language : language.name;
+    const mimetype = typeof language !== 'string' ? language.mime : modename;
+    const ext = typeof language !== 'string' ? language.extensions ?? [] : [];
+
+    return (
+      (modename ? this.findByName(modename) : null) ??
+      (mimetype ? this.findByMIME(mimetype) : null) ??
+      this.findByExtension(ext) ??
+      (fallback
+        ? this.findByMIME(IEditorMimeTypeService.defaultMimeType)
+        : null)
+    );
+  }
+
+  /**
+   * Parse and style a string.
+   *
+   * @param code Code to highlight
+   * @param language Code language
+   * @param el HTML element into which the highlighted code will be inserted
+   */
+  async highlight(
+    code: string,
+    language: IEditorLanguage | null,
+    el: HTMLElement
+  ): Promise<void> {
+    if (language) {
+      await this.getLanguage(language);
+    }
+
+    const language_ = language?.support?.language;
+    if (!language_) {
+      el.appendChild(document.createTextNode(code));
+      return;
+    }
+
+    const tree = language_.parser.parse(code);
+    // position state required because unstyled tokens are not emitted
+    // in highlightTree
+    let pos = 0;
+    highlightTree(tree, jupyterHighlightStyle, (from, to, classes) => {
+      if (from > pos) {
+        // No style applied to the token between pos and from
+        el.appendChild(document.createTextNode(code.slice(pos, from)));
+      }
+      const sp = el.appendChild(document.createElement('span'));
+      sp.className = classes;
+      sp.appendChild(document.createTextNode(code.slice(from, to)));
+      pos = to;
+    });
+
+    if (pos < tree.length - 1) {
+      // No style applied on the trailing text
+      el.appendChild(document.createTextNode(code.slice(pos, tree.length)));
+    }
+  }
+
+  // Code mirror uses two similar structures, a plain object with optional fields,
+  // and a class with the same fields but all mandatory. Maybe adopting the same
+  // pattern would be less confusing (although far more verbose)
+  protected makeSpec(spec: IEditorLanguage): IEditorLanguage {
+    let res = LanguageDescription.of(spec) as any;
+    // CodeMirror does not store/use mime type of a language
+    res.mime = spec.mime;
+    res.displayName = spec.displayName;
+    return res as IEditorLanguage;
+  }
+}
+
+/**
+ * EditorLanguageRegistry namespace
+ */
+export namespace EditorLanguageRegistry {
+  /**
+   * Convert an CodeMirror 5 language parser to CodeMirror 6
+   *
+   * @param parser Legacy parser
+   * @returns Language object
+   */
+  export function legacy(parser: StreamParser<unknown>): LanguageSupport {
+    return new LanguageSupport(StreamLanguage.define(parser));
+  }
+
+  /**
+   * Create a dialect of SQL
+   *
+   * @param dialectName SQL dialect
+   * @returns Language object
+   */
+  async function sql(
+    dialectName: keyof typeof import('@codemirror/lang-sql')
+  ): Promise<LanguageSupport> {
+    const m = await import('@codemirror/lang-sql');
+    return m.sql({ dialect: (m as any)[dialectName] });
+  }
+
+  /**
+   * Get the default editor languages
+   *
+   * @param translator Application translator
+   * @returns Default CodeMirror 6 languages
+   */
+  export function getDefaultLanguages(
+    translator?: ITranslator | null
+  ): ReadonlyArray<IEditorLanguage> {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+    return [
+      {
+        name: 'C',
+        displayName: trans.__('C'),
+        mime: 'text/x-csrc',
+        extensions: ['c', 'h', 'ino'],
+        async load() {
+          const m = await import('@codemirror/lang-cpp');
+          return m.cpp();
+        }
+      },
+      {
+        name: 'C++',
+        displayName: trans.__('C++'),
+        mime: 'text/x-c++src',
+        extensions: ['cpp', 'c++', 'cc', 'cxx', 'hpp', 'h++', 'hh', 'hxx'],
+        async load() {
+          const m = await import('@codemirror/lang-cpp');
+          return m.cpp();
+        }
+      },
+      {
+        name: 'CQL',
+        displayName: trans.__('CQL'),
+        mime: 'text/x-cassandra',
+        extensions: ['cql'],
+        load() {
+          return sql('Cassandra');
+        }
+      },
+      {
+        name: 'CSS',
+        displayName: trans.__('CSS'),
+        mime: 'text/css',
+        extensions: ['css'],
+        async load() {
+          const m = await import('@codemirror/lang-css');
+          return m.css();
+        }
+      },
+      {
+        name: 'HTML',
+        displayName: trans.__('HTML'),
+        alias: ['xhtml'],
+        mime: 'text/html',
+        extensions: ['html', 'htm', 'handlebars', 'hbs'],
+        async load() {
+          const m = await import('@codemirror/lang-html');
+          return m.html();
+        }
+      },
+      {
+        name: 'Java',
+        displayName: trans.__('Java'),
+        mime: 'text/x-java',
+        extensions: ['java'],
+        async load() {
+          const m = await import('@codemirror/lang-java');
+          return m.java();
+        }
+      },
+      {
+        name: 'Javascript',
+        displayName: trans.__('Javascript'),
+        alias: ['ecmascript', 'js', 'node'],
+        mime: [
+          'text/javascript',
+          'text/ecmascript',
+          'application/javascript',
+          'application/x-javascript',
+          'application/ecmascript'
+        ],
+        extensions: ['js', 'mjs', 'cjs'],
+        async load() {
+          const m = await import('@codemirror/lang-javascript');
+          return m.javascript();
+        }
+      },
+      {
+        name: 'JSON',
+        displayName: trans.__('JSON'),
+        alias: ['json5'],
+        mime: ['application/json', 'application/x-json'],
+        extensions: ['json', 'map'],
+        async load() {
+          const m = await import('@codemirror/lang-json');
+          return m.json();
+        }
+      },
+      {
+        name: 'JSX',
+        displayName: trans.__('JSX'),
+        mime: 'text/jsx',
+        extensions: ['jsx'],
+        async load() {
+          const m = await import('@codemirror/lang-javascript');
+          return m.javascript({ jsx: true });
+        }
+      },
+      {
+        name: 'MariaDB SQL',
+        displayName: trans.__('MariaDB SQL'),
+        mime: 'text/x-mariadb',
+        load() {
+          return sql('MariaSQL');
+        }
+      },
+      {
+        name: 'Markdown',
+        displayName: trans.__('Markdown'),
+        mime: 'text/x-markdown',
+        extensions: ['md', 'markdown', 'mkd'],
+        async load() {
+          const m = await import('@codemirror/lang-markdown');
+          return m.markdown({ codeLanguages: this._modeList as any });
+        }
+      },
+      {
+        name: 'MS SQL',
+        displayName: trans.__('MS SQL'),
+        mime: 'text/x-mssql',
+        load() {
+          return sql('MSSQL');
+        }
+      },
+      {
+        name: 'MySQL',
+        displayName: trans.__('MySQL'),
+        mime: 'text/x-mysql',
+        load() {
+          return sql('MySQL');
+        }
+      },
+      {
+        name: 'PHP',
+        displayName: trans.__('PHP'),
+        mime: [
+          'text/x-php',
+          'application/x-httpd-php',
+          'application/x-httpd-php-open'
+        ],
+        extensions: ['php', 'php3', 'php4', 'php5', 'php7', 'phtml'],
+        async load() {
+          const m = await import('@codemirror/lang-php');
+          return m.php();
+        }
+      },
+      {
+        name: 'PLSQL',
+        displayName: trans.__('PLSQL'),
+        mime: 'text/x-plsql',
+        extensions: ['pls'],
+        load() {
+          return sql('PLSQL');
+        }
+      },
+      {
+        name: 'PostgreSQL',
+        displayName: trans.__('PostgreSQL'),
+        mime: 'text/x-pgsql',
+        load() {
+          return sql('PostgreSQL');
+        }
+      },
+      {
+        name: 'Python',
+        displayName: trans.__('Python'),
+        mime: 'text/x-python',
+        extensions: ['BUILD', 'bzl', 'py', 'pyw'],
+        filename: /^(BUCK|BUILD)$/,
+        async load() {
+          const m = await import('@codemirror/lang-python');
+          return m.python();
+        }
+      },
+      {
+        name: 'ipython',
+        displayName: trans.__('ipython'),
+        mime: 'text/x-ipython',
+        async load() {
+          // FIXME Restore '?' operator - using the default python LanguageSupport allows
+          // to activate feature such as code folding.
+          // return Promise.resolve(legacy(mkPython({ singleOperators: /\?/ })));
+          const m = await import('@codemirror/lang-python');
+          return m.python();
+        }
+      },
+      {
+        name: 'Rust',
+        displayName: trans.__('Rust'),
+        mime: 'text/x-rustsrc',
+        extensions: ['rs'],
+        async load() {
+          const m = await import('@codemirror/lang-rust');
+          return m.rust();
+        }
+      },
+      {
+        name: 'SQL',
+        displayName: trans.__('SQL'),
+        mime: ['application/sql', 'text/x-sql'],
+        extensions: ['sql'],
+        load() {
+          return sql('StandardSQL');
+        }
+      },
+      {
+        name: 'SQLite',
+        displayName: trans.__('SQLite'),
+        mime: 'text/x-sqlite',
+        load() {
+          return sql('SQLite');
+        }
+      },
+      {
+        name: 'TSX',
+        displayName: trans.__('TSX'),
+        alias: ['TypeScript-JSX'],
+        mime: 'text/typescript-jsx',
+        extensions: ['tsx'],
+        async load() {
+          const m = await import('@codemirror/lang-javascript');
+          return m.javascript({ jsx: true, typescript: true });
+        }
+      },
+      {
+        name: 'TypeScript',
+        displayName: trans.__('TypeScript'),
+        alias: ['ts'],
+        mime: 'application/typescript',
+        extensions: ['ts'],
+        async load() {
+          const m = await import('@codemirror/lang-javascript');
+          return m.javascript({ typescript: true });
+        }
+      },
+      {
+        name: 'WebAssembly',
+        displayName: trans.__('WebAssembly'),
+        mime: 'text/webassembly',
+        extensions: ['wat', 'wast'],
+        async load() {
+          const m = await import('@codemirror/lang-wast');
+          return m.wast();
+        }
+      },
+      {
+        name: 'XML',
+        displayName: trans.__('XML'),
+        alias: ['rss', 'wsdl', 'xsd'],
+        mime: ['application/xml', 'text/xml'],
+        extensions: ['xml', 'xsl', 'xsd', 'svg'],
+        async load() {
+          const m = await import('@codemirror/lang-xml');
+          return m.xml();
+        }
+      },
+      // Legacy modes ported from CodeMirror 5
+      {
+        name: 'APL',
+        displayName: trans.__('APL'),
+        mime: 'text/apl',
+        extensions: ['dyalog', 'apl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/apl');
+          return legacy(m.apl);
+        }
+      },
+      {
+        name: 'PGP',
+        displayName: trans.__('PGP'),
+        alias: ['asciiarmor'],
+        mime: [
+          'application/pgp',
+          'application/pgp-encrypted',
+          'application/pgp-keys',
+          'application/pgp-signature'
+        ],
+        extensions: ['asc', 'pgp', 'sig'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/asciiarmor');
+          return legacy(m.asciiArmor);
+        }
+      },
+      {
+        name: 'ASN.1',
+        displayName: trans.__('ASN.1'),
+        mime: 'text/x-ttcn-asn',
+        extensions: ['asn', 'asn1'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/asn1');
+          return legacy(m.asn1({}));
+        }
+      },
+      {
+        name: 'Asterisk',
+        displayName: trans.__('Asterisk'),
+        mime: 'text/x-asterisk',
+        filename: /^extensions\.conf$/i,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/asterisk');
+          return legacy(m.asterisk);
+        }
+      },
+      {
+        name: 'Brainfuck',
+        displayName: trans.__('Brainfuck'),
+        mime: 'text/x-brainfuck',
+        extensions: ['b', 'bf'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/brainfuck');
+          return legacy(m.brainfuck);
+        }
+      },
+      {
+        name: 'Cobol',
+        displayName: trans.__('Cobol'),
+        mime: 'text/x-cobol',
+        extensions: ['cob', 'cpy'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/cobol');
+          return legacy(m.cobol);
+        }
+      },
+      {
+        name: 'C#',
+        displayName: trans.__('C#'),
+        alias: ['csharp', 'cs'],
+        mime: 'text/x-csharp',
+        extensions: ['cs'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.csharp);
+        }
+      },
+      {
+        name: 'Clojure',
+        displayName: trans.__('Clojure'),
+        mime: 'text/x-clojure',
+        extensions: ['clj', 'cljc', 'cljx'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clojure');
+          return legacy(m.clojure);
+        }
+      },
+      {
+        name: 'ClojureScript',
+        displayName: trans.__('ClojureScript'),
+        mime: 'text/x-clojurescript',
+        extensions: ['cljs'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clojure');
+          return legacy(m.clojure);
+        }
+      },
+      {
+        name: 'Closure Stylesheets (GSS)',
+        displayName: trans.__('Closure Stylesheets (GSS)'),
+        mime: 'text/x-gss',
+        extensions: ['gss'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/css');
+          return legacy(m.gss);
+        }
+      },
+      {
+        name: 'CMake',
+        displayName: trans.__('CMake'),
+        mime: 'text/x-cmake',
+        extensions: ['cmake', 'cmake.in'],
+        filename: /^CMakeLists\.txt$/,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/cmake');
+          return legacy(m.cmake);
+        }
+      },
+      {
+        name: 'CoffeeScript',
+        displayName: trans.__('CoffeeScript'),
+        alias: ['coffee', 'coffee-script'],
+        mime: [
+          'application/vnd.coffeescript',
+          'text/coffeescript',
+          'text/x-coffeescript'
+        ],
+        extensions: ['coffee'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/coffeescript');
+          return legacy(m.coffeeScript);
+        }
+      },
+      {
+        name: 'Common Lisp',
+        displayName: trans.__('Common Lisp'),
+        alias: ['lisp'],
+        mime: 'text/x-common-lisp',
+        extensions: ['cl', 'lisp', 'el'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/commonlisp');
+          return legacy(m.commonLisp);
+        }
+      },
+      {
+        name: 'Cypher',
+        displayName: trans.__('Cypher'),
+        mime: 'application/x-cypher-query',
+        extensions: ['cyp', 'cypher'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/cypher');
+          return legacy(m.cypher);
+        }
+      },
+      {
+        name: 'Cython',
+        displayName: trans.__('Cython'),
+        mime: 'text/x-cython',
+        extensions: ['pyx', 'pxd', 'pxi'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/python');
+          return legacy(m.cython);
+        }
+      },
+      {
+        name: 'Crystal',
+        displayName: trans.__('Crystal'),
+        mime: 'text/x-crystal',
+        extensions: ['cr'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/crystal');
+          return legacy(m.crystal);
+        }
+      },
+      {
+        name: 'D',
+        displayName: trans.__('D'),
+        mime: 'text/x-d',
+        extensions: ['d'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/d');
+          return legacy(m.d);
+        }
+      },
+      {
+        name: 'Dart',
+        displayName: trans.__('Dart'),
+        mime: ['application/dart', 'text/x-dart'],
+        extensions: ['dart'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.dart);
+        }
+      },
+      {
+        name: 'diff',
+        displayName: trans.__('diff'),
+        mime: 'text/x-diff',
+        extensions: ['diff', 'patch'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/diff');
+          return legacy(m.diff);
+        }
+      },
+      {
+        name: 'Dockerfile',
+        displayName: trans.__('Dockerfile'),
+        mime: 'text/x-dockerfile',
+        filename: /^Dockerfile$/,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/dockerfile');
+          return legacy(m.dockerFile);
+        }
+      },
+      {
+        name: 'DTD',
+        displayName: trans.__('DTD'),
+        mime: 'application/xml-dtd',
+        extensions: ['dtd'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/dtd');
+          return legacy(m.dtd);
+        }
+      },
+      {
+        name: 'Dylan',
+        displayName: trans.__('Dylan'),
+        mime: 'text/x-dylan',
+        extensions: ['dylan', 'dyl', 'intr'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/dylan');
+          return legacy(m.dylan);
+        }
+      },
+      {
+        name: 'EBNF',
+        displayName: trans.__('EBNF'),
+        mime: 'text/x-ebnf',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ebnf');
+          return legacy(m.ebnf);
+        }
+      },
+      {
+        name: 'ECL',
+        displayName: trans.__('ECL'),
+        mime: 'text/x-ecl',
+        extensions: ['ecl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ecl');
+          return legacy(m.ecl);
+        }
+      },
+      {
+        name: 'edn',
+        displayName: trans.__('edn'),
+        mime: 'application/edn',
+        extensions: ['edn'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clojure');
+          return legacy(m.clojure);
+        }
+      },
+      {
+        name: 'Eiffel',
+        displayName: trans.__('Eiffel'),
+        mime: 'text/x-eiffel',
+        extensions: ['e'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/eiffel');
+          return legacy(m.eiffel);
+        }
+      },
+      {
+        name: 'Elm',
+        displayName: trans.__('Elm'),
+        mime: 'text/x-elm',
+        extensions: ['elm'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/elm');
+          return legacy(m.elm);
+        }
+      },
+      {
+        name: 'Erlang',
+        displayName: trans.__('Erlang'),
+        mime: 'text/x-erlang',
+        extensions: ['erl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/erlang');
+          return legacy(m.erlang);
+        }
+      },
+      {
+        name: 'Esper',
+        displayName: trans.__('Esper'),
+        mime: 'text/x-esper',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/sql');
+          return legacy(m.esper);
+        }
+      },
+      {
+        name: 'Factor',
+        displayName: trans.__('Factor'),
+        mime: 'text/x-factor',
+        extensions: ['factor'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/factor');
+          return legacy(m.factor);
+        }
+      },
+      {
+        name: 'FCL',
+        displayName: trans.__('FCL'),
+        mime: 'text/x-fcl',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/fcl');
+          return legacy(m.fcl);
+        }
+      },
+      {
+        name: 'Forth',
+        displayName: trans.__('Forth'),
+        mime: 'text/x-forth',
+        extensions: ['forth', 'fth', '4th'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/forth');
+          return legacy(m.forth);
+        }
+      },
+      {
+        name: 'Fortran',
+        displayName: trans.__('Fortran'),
+        mime: 'text/x-fortran',
+        extensions: ['f', 'for', 'f77', 'f90', 'f95'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/fortran');
+          return legacy(m.fortran);
+        }
+      },
+      {
+        name: 'F#',
+        displayName: trans.__('F#'),
+        alias: ['fsharp'],
+        mime: 'text/x-fsharp',
+        extensions: ['fs'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mllike');
+          return legacy(m.fSharp);
+        }
+      },
+      {
+        name: 'Gas',
+        displayName: trans.__('Gas'),
+        mime: 'text/x-gas',
+        extensions: ['s'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/gas');
+          return legacy(m.gas);
+        }
+      },
+      {
+        name: 'Gherkin',
+        displayName: trans.__('Gherkin'),
+        mime: 'text/x-feature',
+        extensions: ['feature'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/gherkin');
+          return legacy(m.gherkin);
+        }
+      },
+      {
+        name: 'Go',
+        displayName: trans.__('Go'),
+        mime: 'text/x-go',
+        extensions: ['go'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/go');
+          return legacy(m.go);
+        }
+      },
+      {
+        name: 'Groovy',
+        displayName: trans.__('Groovy'),
+        mime: 'text/x-groovy',
+        extensions: ['groovy', 'gradle'],
+        filename: /^Jenkinsfile$/,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/groovy');
+          return legacy(m.groovy);
+        }
+      },
+      {
+        name: 'Haskell',
+        displayName: trans.__('Haskell'),
+        mime: 'text/x-haskell',
+        extensions: ['hs'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/haskell');
+          return legacy(m.haskell);
+        }
+      },
+      {
+        name: 'Haxe',
+        displayName: trans.__('Haxe'),
+        mime: 'text/x-haxe',
+        extensions: ['hx'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/haxe');
+          return legacy(m.haxe);
+        }
+      },
+      {
+        name: 'HXML',
+        displayName: trans.__('HXML'),
+        mime: 'text/x-hxml',
+        extensions: ['hxml'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/haxe');
+          return legacy(m.hxml);
+        }
+      },
+      {
+        name: 'HTTP',
+        displayName: trans.__('HTTP'),
+        mime: 'message/http',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/http');
+          return legacy(m.http);
+        }
+      },
+      {
+        name: 'IDL',
+        displayName: trans.__('IDL'),
+        mime: 'text/x-idl',
+        extensions: ['pro'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/idl');
+          return legacy(m.idl);
+        }
+      },
+      {
+        name: 'JSON-LD',
+        displayName: trans.__('JSON-LD'),
+        alias: ['jsonld'],
+        mime: 'application/ld+json',
+        extensions: ['jsonld'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/javascript');
+          return legacy(m.jsonld);
+        }
+      },
+      {
+        name: 'Jinja2',
+        displayName: trans.__('Jinja2'),
+        mime: 'text/jinja2',
+        extensions: ['j2', 'jinja', 'jinja2'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/jinja2');
+          return legacy(m.jinja2);
+        }
+      },
+      {
+        name: 'Julia',
+        displayName: trans.__('Julia'),
+        mime: 'text/x-julia',
+        extensions: ['jl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/julia');
+          return legacy(m.julia);
+        }
+      },
+      {
+        name: 'Kotlin',
+        displayName: trans.__('Kotlin'),
+        mime: 'text/x-kotlin',
+        extensions: ['kt'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.kotlin);
+        }
+      },
+      {
+        name: 'LESS',
+        displayName: trans.__('LESS'),
+        mime: 'text/x-less',
+        extensions: ['less'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/css');
+          return legacy(m.less);
+        }
+      },
+      {
+        name: 'LiveScript',
+        displayName: trans.__('LiveScript'),
+        alias: ['ls'],
+        mime: 'text/x-livescript',
+        extensions: ['ls'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/livescript');
+          return legacy(m.liveScript);
+        }
+      },
+      {
+        name: 'Lua',
+        displayName: trans.__('Lua'),
+        mime: 'text/x-lua',
+        extensions: ['lua'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/lua');
+          return legacy(m.lua);
+        }
+      },
+      {
+        name: 'mIRC',
+        displayName: trans.__('mIRC'),
+        mime: 'text/mirc',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mirc');
+          return legacy(m.mirc);
+        }
+      },
+      {
+        name: 'Mathematica',
+        displayName: trans.__('Mathematica'),
+        mime: 'text/x-mathematica',
+        extensions: ['m', 'nb', 'wl', 'wls'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mathematica');
+          return legacy(m.mathematica);
+        }
+      },
+      {
+        name: 'Modelica',
+        displayName: trans.__('Modelica'),
+        mime: 'text/x-modelica',
+        extensions: ['mo'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/modelica');
+          return legacy(m.modelica);
+        }
+      },
+      {
+        name: 'MUMPS',
+        displayName: trans.__('MUMPS'),
+        mime: 'text/x-mumps',
+        extensions: ['mps'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mumps');
+          return legacy(m.mumps);
+        }
+      },
+      {
+        name: 'mbox',
+        displayName: trans.__('mbox'),
+        mime: 'application/mbox',
+        extensions: ['mbox'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mbox');
+          return legacy(m.mbox);
+        }
+      },
+      {
+        name: 'Nginx',
+        displayName: trans.__('Nginx'),
+        mime: 'text/x-nginx-conf',
+        filename: /nginx.*\.conf$/i,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/nginx');
+          return legacy(m.nginx);
+        }
+      },
+      {
+        name: 'NSIS',
+        displayName: trans.__('NSIS'),
+        mime: 'text/x-nsis',
+        extensions: ['nsh', 'nsi'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/nsis');
+          return legacy(m.nsis);
+        }
+      },
+      {
+        name: 'NTriples',
+        displayName: trans.__('NTriples'),
+        mime: [
+          'application/n-triples',
+          'application/n-quads',
+          'text/n-triples'
+        ],
+        extensions: ['nt', 'nq'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ntriples');
+          return legacy(m.ntriples);
+        }
+      },
+      {
+        name: 'Objective-C',
+        displayName: trans.__('Objective-C'),
+        alias: ['objective-c', 'objc'],
+        mime: 'text/x-objectivec',
+        extensions: ['m'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.objectiveC);
+        }
+      },
+      {
+        name: 'Objective-C++',
+        displayName: trans.__('Objective-C++'),
+        alias: ['objective-c++', 'objc++'],
+        mime: 'text/x-objectivec++',
+        extensions: ['mm'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.objectiveCpp);
+        }
+      },
+      {
+        name: 'OCaml',
+        displayName: trans.__('OCaml'),
+        mime: 'text/x-ocaml',
+        extensions: ['ml', 'mli', 'mll', 'mly'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mllike');
+          return legacy(m.oCaml);
+        }
+      },
+      {
+        name: 'Octave',
+        displayName: trans.__('Octave'),
+        mime: 'text/x-octave',
+        extensions: ['m'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/octave');
+          return legacy(m.octave);
+        }
+      },
+      {
+        name: 'Oz',
+        displayName: trans.__('Oz'),
+        mime: 'text/x-oz',
+        extensions: ['oz'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/oz');
+          return legacy(m.oz);
+        }
+      },
+      {
+        name: 'Pascal',
+        displayName: trans.__('Pascal'),
+        mime: 'text/x-pascal',
+        extensions: ['p', 'pas'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/pascal');
+          return legacy(m.pascal);
+        }
+      },
+      {
+        name: 'Perl',
+        displayName: trans.__('Perl'),
+        mime: 'text/x-perl',
+        extensions: ['pl', 'pm'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/perl');
+          return legacy(m.perl);
+        }
+      },
+      {
+        name: 'Pig',
+        displayName: trans.__('Pig'),
+        mime: 'text/x-pig',
+        extensions: ['pig'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/pig');
+          return legacy(m.pig);
+        }
+      },
+      {
+        name: 'PowerShell',
+        displayName: trans.__('PowerShell'),
+        mime: 'application/x-powershell',
+        extensions: ['ps1', 'psd1', 'psm1'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/powershell');
+          return legacy(m.powerShell);
+        }
+      },
+      {
+        name: 'Properties files',
+        displayName: trans.__('Properties files'),
+        alias: ['ini', 'properties'],
+        mime: 'text/x-properties',
+        extensions: ['properties', 'ini', 'in'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/properties');
+          return legacy(m.properties);
+        }
+      },
+      {
+        name: 'ProtoBuf',
+        displayName: trans.__('ProtoBuf'),
+        mime: 'text/x-protobuf',
+        extensions: ['proto'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/protobuf');
+          return legacy(m.protobuf);
+        }
+      },
+      {
+        name: 'Puppet',
+        displayName: trans.__('Puppet'),
+        mime: 'text/x-puppet',
+        extensions: ['pp'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/puppet');
+          return legacy(m.puppet);
+        }
+      },
+      {
+        name: 'Q',
+        displayName: trans.__('Q'),
+        mime: 'text/x-q',
+        extensions: ['q'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/q');
+          return legacy(m.q);
+        }
+      },
+      {
+        name: 'R',
+        displayName: trans.__('R'),
+        alias: ['rscript'],
+        mime: 'text/x-rsrc',
+        extensions: ['r', 'R'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/r');
+          return legacy(m.r);
+        }
+      },
+      {
+        name: 'RPM Changes',
+        displayName: trans.__('RPM Changes'),
+        mime: 'text/x-rpm-changes',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/rpm');
+          return legacy(m.rpmChanges);
+        }
+      },
+      {
+        name: 'RPM Spec',
+        displayName: trans.__('RPM Spec'),
+        mime: 'text/x-rpm-spec',
+        extensions: ['spec'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/rpm');
+          return legacy(m.rpmSpec);
+        }
+      },
+      {
+        name: 'Ruby',
+        displayName: trans.__('Ruby'),
+        alias: ['jruby', 'macruby', 'rake', 'rb', 'rbx'],
+        mime: 'text/x-ruby',
+        extensions: ['rb'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ruby');
+          return legacy(m.ruby);
+        }
+      },
+      {
+        name: 'SAS',
+        displayName: trans.__('SAS'),
+        mime: 'text/x-sas',
+        extensions: ['sas'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/sas');
+          return legacy(m.sas);
+        }
+      },
+      {
+        name: 'Scala',
+        displayName: trans.__('Scala'),
+        mime: 'text/x-scala',
+        extensions: ['scala'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.scala);
+        }
+      },
+      {
+        name: 'Scheme',
+        displayName: trans.__('Scheme'),
+        mime: 'text/x-scheme',
+        extensions: ['scm', 'ss'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/scheme');
+          return legacy(m.scheme);
+        }
+      },
+      {
+        name: 'SCSS',
+        displayName: trans.__('SCSS'),
+        mime: 'text/x-scss',
+        extensions: ['scss'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/css');
+          return legacy(m.sCSS);
+        }
+      },
+      {
+        name: 'Shell',
+        displayName: trans.__('Shell'),
+        alias: ['bash', 'sh', 'zsh'],
+        mime: ['text/x-sh', 'application/x-sh'],
+        extensions: ['sh', 'ksh', 'bash'],
+        filename: /^PKGBUILD$/,
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/shell');
+          return legacy(m.shell);
+        }
+      },
+      {
+        name: 'Sieve',
+        displayName: trans.__('Sieve'),
+        mime: 'application/sieve',
+        extensions: ['siv', 'sieve'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/sieve');
+          return legacy(m.sieve);
+        }
+      },
+      {
+        name: 'Smalltalk',
+        displayName: trans.__('Smalltalk'),
+        mime: 'text/x-stsrc',
+        extensions: ['st'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/smalltalk');
+          return legacy(m.smalltalk);
+        }
+      },
+      {
+        name: 'Solr',
+        displayName: trans.__('Solr'),
+        mime: 'text/x-solr',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/solr');
+          return legacy(m.solr);
+        }
+      },
+      {
+        name: 'SML',
+        displayName: trans.__('SML'),
+        mime: 'text/x-sml',
+        extensions: ['sml', 'sig', 'fun', 'smackspec'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mllike');
+          return legacy(m.sml);
+        }
+      },
+      {
+        name: 'SPARQL',
+        displayName: trans.__('SPARQL'),
+        alias: ['sparul'],
+        mime: 'application/sparql-query',
+        extensions: ['rq', 'sparql'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/sparql');
+          return legacy(m.sparql);
+        }
+      },
+      {
+        name: 'Spreadsheet',
+        displayName: trans.__('Spreadsheet'),
+        alias: ['excel', 'formula'],
+        mime: 'text/x-spreadsheet',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/spreadsheet');
+          return legacy(m.spreadsheet);
+        }
+      },
+      {
+        name: 'Squirrel',
+        displayName: trans.__('Squirrel'),
+        mime: 'text/x-squirrel',
+        extensions: ['nut'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/clike');
+          return legacy(m.squirrel);
+        }
+      },
+      {
+        name: 'Stylus',
+        displayName: trans.__('Stylus'),
+        mime: 'text/x-styl',
+        extensions: ['styl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/stylus');
+          return legacy(m.stylus);
+        }
+      },
+      {
+        name: 'Swift',
+        displayName: trans.__('Swift'),
+        mime: 'text/x-swift',
+        extensions: ['swift'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/swift');
+          return legacy(m.swift);
+        }
+      },
+      {
+        name: 'sTeX',
+        displayName: trans.__('sTeX'),
+        mime: 'text/x-stex',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/stex');
+          return legacy(m.stex);
+        }
+      },
+      {
+        name: 'LaTeX',
+        displayName: trans.__('LaTeX'),
+        alias: ['tex'],
+        mime: 'text/x-latex',
+        extensions: ['text', 'ltx', 'tex'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/stex');
+          return legacy(m.stex);
+        }
+      },
+      {
+        name: 'SystemVerilog',
+        displayName: trans.__('SystemVerilog'),
+        mime: 'text/x-systemverilog',
+        extensions: ['v', 'sv', 'svh'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/verilog');
+          return legacy(m.verilog);
+        }
+      },
+      {
+        name: 'Tcl',
+        displayName: trans.__('Tcl'),
+        mime: 'text/x-tcl',
+        extensions: ['tcl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/tcl');
+          return legacy(m.tcl);
+        }
+      },
+      {
+        name: 'Textile',
+        displayName: trans.__('Textile'),
+        mime: 'text/x-textile',
+        extensions: ['textile'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/textile');
+          return legacy(m.textile);
+        }
+      },
+      {
+        name: 'TiddlyWiki',
+        displayName: trans.__('TiddlyWiki'),
+        mime: 'text/x-tiddlywiki',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/tiddlywiki');
+          return legacy(m.tiddlyWiki);
+        }
+      },
+      {
+        name: 'Tiki wiki',
+        displayName: trans.__('Tiki wiki'),
+        mime: 'text/tiki',
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/tiki');
+          return legacy(m.tiki);
+        }
+      },
+      {
+        name: 'TOML',
+        displayName: trans.__('TOML'),
+        mime: 'text/x-toml',
+        extensions: ['toml'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/toml');
+          return legacy(m.toml);
+        }
+      },
+      {
+        name: 'troff',
+        displayName: trans.__('troff'),
+        mime: 'text/troff',
+        extensions: ['1', '2', '3', '4', '5', '6', '7', '8', '9'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/troff');
+          return legacy(m.troff);
+        }
+      },
+      {
+        name: 'TTCN',
+        displayName: trans.__('TTCN'),
+        mime: 'text/x-ttcn',
+        extensions: ['ttcn', 'ttcn3', 'ttcnpp'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ttcn');
+          return legacy(m.ttcn);
+        }
+      },
+      {
+        name: 'TTCN_CFG',
+        displayName: trans.__('TTCN_CFG'),
+        mime: 'text/x-ttcn-cfg',
+        extensions: ['cfg'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/ttcn-cfg');
+          return legacy(m.ttcnCfg);
+        }
+      },
+      {
+        name: 'Turtle',
+        displayName: trans.__('Turtle'),
+        mime: 'text/turtle',
+        extensions: ['ttl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/turtle');
+          return legacy(m.turtle);
+        }
+      },
+      {
+        name: 'Web IDL',
+        displayName: trans.__('Web IDL'),
+        mime: 'text/x-webidl',
+        extensions: ['webidl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/webidl');
+          return legacy(m.webIDL);
+        }
+      },
+      {
+        name: 'VB.NET',
+        displayName: trans.__('VB.NET'),
+        mime: 'text/x-vb',
+        extensions: ['vb'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/vb');
+          return legacy(m.vb);
+        }
+      },
+      {
+        name: 'VBScript',
+        displayName: trans.__('VBScript'),
+        mime: 'text/vbscript',
+        extensions: ['vbs'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/vbscript');
+          return legacy(m.vbScript);
+        }
+      },
+      {
+        name: 'Velocity',
+        displayName: trans.__('Velocity'),
+        mime: 'text/velocity',
+        extensions: ['vtl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/velocity');
+          return legacy(m.velocity);
+        }
+      },
+      {
+        name: 'Verilog',
+        displayName: trans.__('Verilog'),
+        mime: 'text/x-verilog',
+        extensions: ['v'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/verilog');
+          return legacy(m.verilog);
+        }
+      },
+      {
+        name: 'VHDL',
+        displayName: trans.__('VHDL'),
+        mime: 'text/x-vhdl',
+        extensions: ['vhd', 'vhdl'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/vhdl');
+          return legacy(m.vhdl);
+        }
+      },
+      {
+        name: 'XQuery',
+        displayName: trans.__('XQuery'),
+        mime: 'application/xquery',
+        extensions: ['xy', 'xquery'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/xquery');
+          return legacy(m.xQuery);
+        }
+      },
+      {
+        name: 'Yacas',
+        displayName: trans.__('Yacas'),
+        mime: 'text/x-yacas',
+        extensions: ['ys'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/yacas');
+          return legacy(m.yacas);
+        }
+      },
+      {
+        name: 'YAML',
+        displayName: trans.__('YAML'),
+        alias: ['yml'],
+        mime: ['text/x-yaml', 'text/yaml'],
+        extensions: ['yaml', 'yml'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/yaml');
+          return legacy(m.yaml);
+        }
+      },
+      {
+        name: 'Z80',
+        displayName: trans.__('Z80'),
+        mime: 'text/x-z80',
+        extensions: ['z80'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/z80');
+          return legacy(m.z80);
+        }
+      },
+      {
+        name: 'mscgen',
+        displayName: trans.__('mscgen'),
+        mime: 'text/x-mscgen',
+        extensions: ['mscgen', 'mscin', 'msc'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mscgen');
+          return legacy(m.mscgen);
+        }
+      },
+      {
+        name: 'xu',
+        displayName: trans.__('xu'),
+        mime: 'text/x-xu',
+        extensions: ['xu'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mscgen');
+          return legacy(m.xu);
+        }
+      },
+      {
+        name: 'msgenny',
+        displayName: trans.__('msgenny'),
+        mime: 'text/x-msgenny',
+        extensions: ['msgenny'],
+        async load() {
+          const m = await import('@codemirror/legacy-modes/mode/mscgen');
+          return legacy(m.msgenny);
+        }
+      }
+    ];
+  }
+}
diff --git a/packages/codemirror/src/mimetype.ts b/packages/codemirror/src/mimetype.ts
index 0d28b012525c..a8e92555f5af 100644
--- a/packages/codemirror/src/mimetype.ts
+++ b/packages/codemirror/src/mimetype.ts
@@ -4,27 +4,35 @@
 import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
 import { PathExt } from '@jupyterlab/coreutils';
 import * as nbformat from '@jupyterlab/nbformat';
-import { Mode } from './mode';
+import { IEditorLanguageRegistry } from './token';
 
 /**
  * The mime type service for CodeMirror.
  */
 export class CodeMirrorMimeTypeService implements IEditorMimeTypeService {
+  constructor(protected languages: IEditorLanguageRegistry) {}
   /**
    * Returns a mime type for the given language info.
    *
    * #### Notes
    * If a mime type cannot be found returns the default mime type `text/plain`, never `null`.
+   * There may be more than one mime type, but only the first one will be returned.
+   * To access all mime types, use `IEditorLanguageRegistry` instead.
    */
   getMimeTypeByLanguage(info: nbformat.ILanguageInfoMetadata): string {
     const ext = info.file_extension || '';
-    return Mode.findBest(
+    const mode = this.languages.findBest(
       (info.codemirror_mode as any) || {
         mimetype: info.mimetype,
         name: info.name,
         ext: [ext.split('.').slice(-1)[0]]
       }
-    ).mime as string;
+    );
+    return mode
+      ? Array.isArray(mode.mime)
+        ? mode.mime[0] ?? IEditorMimeTypeService.defaultMimeType
+        : mode.mime
+      : IEditorMimeTypeService.defaultMimeType;
   }
 
   /**
@@ -32,6 +40,8 @@ export class CodeMirrorMimeTypeService implements IEditorMimeTypeService {
    *
    * #### Notes
    * If a mime type cannot be found returns the default mime type `text/plain`, never `null`.
+   * There may be more than one mime type, but only the first one will be returned.
+   * To access all mime types, use `IEditorLanguageRegistry` instead.
    */
   getMimeTypeByFilePath(path: string): string {
     const ext = PathExt.extname(path);
@@ -40,7 +50,11 @@ export class CodeMirrorMimeTypeService implements IEditorMimeTypeService {
     } else if (ext === '.md') {
       return 'text/x-ipythongfm';
     }
-    const mode = Mode.findByFileName(path) || Mode.findBest('');
-    return mode.mime as string;
+    const mode = this.languages.findByFileName(path);
+    return mode
+      ? Array.isArray(mode.mime)
+        ? mode.mime[0] ?? IEditorMimeTypeService.defaultMimeType
+        : mode.mime
+      : IEditorMimeTypeService.defaultMimeType;
   }
 }
diff --git a/packages/codemirror/src/mode.ts b/packages/codemirror/src/mode.ts
deleted file mode 100644
index bbcdfaa04732..000000000000
--- a/packages/codemirror/src/mode.ts
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
-import { PathExt } from '@jupyterlab/coreutils';
-import { ArrayExt } from '@lumino/algorithm';
-import { JSONValue } from '@lumino/coreutils';
-import CodeMirror from 'codemirror';
-import 'codemirror/addon/runmode/runmode';
-import 'codemirror/mode/clike/clike';
-import 'codemirror/mode/css/css';
-// Bundle other common modes
-import 'codemirror/mode/javascript/javascript';
-import 'codemirror/mode/jsx/jsx';
-import 'codemirror/mode/julia/julia';
-import 'codemirror/mode/markdown/markdown';
-import 'codemirror/mode/meta';
-import 'codemirror/mode/r/r';
-import 'codemirror/mode/shell/shell';
-import 'codemirror/mode/sql/sql';
-import './codemirror-ipython';
-import './codemirror-ipythongfm';
-
-// Stub for the require function.
-declare let require: any;
-
-/**
- * The namespace for CodeMirror Mode functionality.
- */
-export namespace Mode {
-  /**
-   * The interface of a codemirror modeInfo spec.
-   */
-  export interface ISpec {
-    ext?: string[];
-    name?: string;
-    mode: string;
-    mime: string;
-  }
-
-  /**
-   * The interface of a codemirror mode spec.
-   */
-  export interface IMode {
-    name: string;
-    [key: string]: JSONValue;
-  }
-
-  /**
-   * The interface for a codemirror spec resolver.
-   */
-  export interface ISpecLoader {
-    /**
-     * A function which returns whether it was successfully loaded
-     */
-    (spec: ISpec): Promise<boolean>;
-  }
-
-  const specLoaders: Private.IRankItem[] = [
-    {
-      // Simplest, cheapest check by mode name.
-      loader: async spec => CodeMirror.modes.hasOwnProperty(spec.mode),
-      rank: 0
-    },
-    {
-      // Fetch the mode asynchronously.
-      loader: function (spec) {
-        return new Promise<boolean>((resolve, reject) => {
-          // An arrow function below seems to miscompile in our current webpack to
-          // invalid js.
-          require([
-            `codemirror/mode/${spec.mode}/${spec.mode}.js`
-          ], function () {
-            resolve(true);
-          });
-        });
-      },
-      rank: 99
-    }
-  ];
-
-  /**
-   * Get the raw list of available modes specs.
-   */
-  export function getModeInfo(): ISpec[] {
-    return CodeMirror.modeInfo as ISpec[];
-  }
-
-  /**
-   * Running a CodeMirror mode outside of an editor.
-   */
-  export function run(
-    code: string,
-    mode: string | ISpec,
-    el: HTMLElement
-  ): void {
-    CodeMirror.runMode(code, mode, el);
-  }
-
-  /**
-   * Ensure a codemirror mode is available by name or Codemirror spec.
-   *
-   * @param mode - The mode to ensure.  If it is a string, uses [findBest]
-   *   to get the appropriate spec.
-   *
-   * @returns A promise that resolves when the mode is available.
-   */
-  export async function ensure(mode: string | ISpec): Promise<ISpec | null> {
-    const spec = findBest(mode);
-
-    for (const specLoader of specLoaders) {
-      if (await specLoader.loader(spec)) {
-        return spec;
-      }
-    }
-
-    return null;
-  }
-
-  export function addSpecLoader(loader: ISpecLoader, rank: number) {
-    const item = { loader, rank };
-    const index = ArrayExt.upperBound(specLoaders, item, Private.itemCmp);
-    ArrayExt.insert(specLoaders, index, item);
-  }
-
-  /**
-   * Find a codemirror mode by name or CodeMirror spec.
-   */
-  export function findBest(mode: string | ISpec): ISpec {
-    const modename = typeof mode === 'string' ? mode : mode.mode || mode.name;
-    const mimetype = typeof mode !== 'string' ? mode.mime : modename;
-    const ext = typeof mode !== 'string' ? mode.ext ?? [] : [];
-
-    return (
-      CodeMirror.findModeByName(modename || '') ||
-      CodeMirror.findModeByMIME(mimetype || '') ||
-      findByExtension(ext) ||
-      CodeMirror.findModeByMIME(IEditorMimeTypeService.defaultMimeType) ||
-      CodeMirror.findModeByMIME('text/plain')
-    );
-  }
-
-  /**
-   * Find a codemirror mode by MIME.
-   */
-  export function findByMIME(mime: string): ISpec {
-    return CodeMirror.findModeByMIME(mime);
-  }
-
-  /**
-   * Find a codemirror mode by name.
-   */
-  export function findByName(name: string): ISpec {
-    return CodeMirror.findModeByName(name);
-  }
-
-  /**
-   * Find a codemirror mode by filename.
-   */
-  export function findByFileName(name: string): ISpec {
-    const basename = PathExt.basename(name);
-    return CodeMirror.findModeByFileName(basename);
-  }
-
-  /**
-   * Find a codemirror mode by extension.
-   */
-  export function findByExtension(ext: string | string[]): ISpec | null {
-    if (typeof ext === 'string') {
-      return CodeMirror.findModeByExtension(ext);
-    }
-    for (let i = 0; i < ext.length; i++) {
-      const mode = CodeMirror.findModeByExtension(ext[i]);
-      if (mode) {
-        return mode;
-      }
-    }
-    return null;
-  }
-}
-
-namespace Private {
-  export interface IRankItem {
-    /**
-     * The loader for the item
-     */
-    loader: Mode.ISpecLoader;
-
-    /**
-     * The sort rank of the widget.
-     */
-    rank: number;
-  }
-
-  /**
-   * A less-than comparison function for the loader rank
-   */
-  export function itemCmp(first: IRankItem, second: IRankItem): number {
-    return first.rank - second.rank;
-  }
-}
diff --git a/packages/codemirror/src/searchprovider.ts b/packages/codemirror/src/searchprovider.ts
new file mode 100644
index 000000000000..587187fe15d7
--- /dev/null
+++ b/packages/codemirror/src/searchprovider.ts
@@ -0,0 +1,921 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+/*
+  Parts of the implementation of the search in this file were derived from
+  CodeMirror's search at:
+  https://github.com/codemirror/CodeMirror/blob/c2676685866c571a1c9c82cb25018cc08b4d42b2/addon/search/search.js
+  which is licensed with the following license:
+
+  MIT License
+
+  Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in
+  all copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+  THE SOFTWARE.
+*/
+
+import { ISearchMatch } from '@jupyterlab/documentsearch';
+import { CodeMirrorEditor } from './editor';
+import {
+  EditorSelection,
+  Extension,
+  StateEffect,
+  StateEffectType,
+  StateField
+} from '@codemirror/state';
+import { Decoration, DecorationSet, EditorView } from '@codemirror/view';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import {
+  GenericSearchProvider,
+  IBaseSearchProvider,
+  IFilters,
+  IReplaceOptions,
+  TextSearchEngine
+} from '@jupyterlab/documentsearch';
+import { ISignal, Signal } from '@lumino/signaling';
+import { ISharedText, SourceChange } from '@jupyter/ydoc';
+
+/**
+ * Defines from which position the search should be executed.
+ * - `'selection'` - search from selection head/anchor (depending on search direction)
+ * - `'previous-match'` - search from previous match
+ * - `'auto'` - search from selection if editor is focused or previous match otherwise
+ * - `'selection-start'` - search from selection head/anchor whichever is smaller
+ * - `'start'` - from start of the editor
+ */
+type SearchStartAnchor =
+  | 'auto'
+  | 'selection'
+  | 'selection-start'
+  | 'previous-match'
+  | 'start';
+
+interface IHighlightMatchOptions {
+  /**
+   * Whether the highlighted match should be scrolled into view.
+   * Defaults to `true`.
+   */
+  scroll?: boolean;
+  /**
+   * Whether the user cursor should be moved to select the match.
+   * `protectSelection` flag takes precedence over this option.
+   * Defaults to `true`.
+   */
+  select?: boolean;
+}
+
+export interface IHighlightAdjacentMatchOptions extends IHighlightMatchOptions {
+  /**
+   * What should be used as an anchor when searching for adjacent match.
+   * Defaults to `'auto'`.
+   */
+  from?: SearchStartAnchor;
+}
+
+/**
+ * Search provider for editors.
+ */
+export abstract class EditorSearchProvider<
+  T extends CodeEditor.IModel = CodeEditor.IModel
+> implements IBaseSearchProvider
+{
+  /**
+   * Constructor
+   */
+  constructor() {
+    this.currentIndex = null;
+    this._stateChanged = new Signal<IBaseSearchProvider, void>(this);
+  }
+
+  /**
+   * CodeMirror search highlighter
+   */
+  protected get cmHandler(): CodeMirrorSearchHighlighter {
+    if (!this._cmHandler) {
+      this._cmHandler = new CodeMirrorSearchHighlighter(
+        this.editor as CodeMirrorEditor
+      );
+    }
+    return this._cmHandler;
+  }
+
+  /**
+   * Text editor
+   */
+  protected abstract get editor(): CodeEditor.IEditor | null;
+  /**
+   * Editor content model
+   */
+  protected abstract get model(): T;
+
+  /**
+   * Changed signal to be emitted when search matches change.
+   */
+  get stateChanged(): ISignal<IBaseSearchProvider, void> {
+    return this._stateChanged;
+  }
+
+  /**
+   * Current match index
+   */
+  get currentMatchIndex(): number | null {
+    return this.isActive ? this.currentIndex : null;
+  }
+
+  /**
+   * Whether the cell search is active.
+   *
+   * This is used when applying search only on selected cells.
+   */
+  get isActive(): boolean {
+    return this._isActive;
+  }
+
+  /**
+   * Whether the search provider is disposed or not.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Number of matches in the cell.
+   */
+  get matchesCount(): number {
+    return this.isActive ? this.cmHandler.matches.length : 0;
+  }
+
+  /**
+   * Clear currently highlighted match
+   */
+  clearHighlight(): Promise<void> {
+    this.currentIndex = null;
+    this.cmHandler.clearHighlight();
+
+    return Promise.resolve();
+  }
+
+  /**
+   * Dispose the search provider
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    Signal.clearData(this);
+    if (this.isActive) {
+      this.endQuery().catch(reason => {
+        console.error(`Failed to end search query on cells.`, reason);
+      });
+    }
+  }
+
+  /**
+   * Set `isActive` status.
+   *
+   * #### Notes
+   * It will start or end the search
+   *
+   * @param v New value
+   */
+  async setIsActive(v: boolean): Promise<void> {
+    if (this._isActive === v) {
+      return;
+    }
+    this._isActive = v;
+    if (this._isActive) {
+      if (this.query !== null) {
+        await this.startQuery(this.query, this.filters);
+      }
+    } else {
+      await this.endQuery();
+    }
+  }
+
+  /**
+   * Set whether search should be limitted to specified text selection.
+   */
+  async setSearchSelection(selection: CodeEditor.IRange | null): Promise<void> {
+    if (this._inSelection === selection) {
+      return;
+    }
+    this._inSelection = selection;
+    await this.updateCodeMirror(this.model.sharedModel.getSource());
+    this._stateChanged.emit();
+  }
+
+  /**
+   * Set whether user selection should be protected from modifications.
+   *
+   * If disabled, the selection will be updated on search and on editor focus
+   * to cover the current match. We need to protect selection from modifications
+   * for both: search in text and search in cells; since `setSearchSelection`
+   * is only telling us about search in text, we need to have an additional
+   * way to signal that either search in text or in cells is active, or for
+   * any other reason selection range should be protected.
+   */
+  setProtectSelection(v: boolean) {
+    this.cmHandler.protectSelection = v;
+  }
+
+  /**
+   * Initialize the search using the provided options. Should update the UI
+   * to highlight all matches and "select" the first match.
+   *
+   * @param query A RegExp to be use to perform the search
+   * @param filters Filter parameters to pass to provider
+   */
+  async startQuery(query: RegExp | null, filters?: IFilters): Promise<void> {
+    this.query = query;
+    this.filters = filters;
+
+    // Search input
+    const content = this.model.sharedModel.getSource();
+    await this.updateCodeMirror(content);
+    this.model.sharedModel.changed.connect(this.onSharedModelChanged, this);
+  }
+
+  /**
+   * Stop the search and clean any UI elements.
+   */
+  async endQuery(): Promise<void> {
+    await this.clearHighlight();
+    await this.cmHandler.endQuery();
+    this.currentIndex = null;
+  }
+
+  /**
+   * Highlight the next match.
+   *
+   * @returns The next match if there is one.
+   */
+  async highlightNext(
+    loop = true,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    if (this.matchesCount === 0 || !this.isActive) {
+      this.currentIndex = null;
+    } else {
+      let match = await this.cmHandler.highlightNext(options);
+      if (match) {
+        this.currentIndex = this.cmHandler.currentIndex;
+      } else {
+        // Note: the loop logic is only used in single-editor (e.g. file editor)
+        // provider sub-classes, notebook has it's own loop logic and ignores
+        // `currentIndex` as set here.
+        this.currentIndex = loop ? 0 : null;
+      }
+      return match;
+    }
+
+    return Promise.resolve(this.getCurrentMatch());
+  }
+
+  /**
+   * Highlight the previous match.
+   *
+   * @returns The previous match if there is one.
+   */
+  async highlightPrevious(
+    loop = true,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    if (this.matchesCount === 0 || !this.isActive) {
+      this.currentIndex = null;
+    } else {
+      let match = await this.cmHandler.highlightPrevious(options);
+      if (match) {
+        this.currentIndex = this.cmHandler.currentIndex;
+      } else {
+        this.currentIndex = loop ? this.matchesCount - 1 : null;
+      }
+      return match;
+    }
+
+    return Promise.resolve(this.getCurrentMatch());
+  }
+
+  /**
+   * Replace the currently selected match with the provided text.
+   *
+   * If no match is selected, it won't do anything.
+   *
+   * The caller of this method is expected to call `highlightNext` if after
+   * calling `replaceCurrentMatch()` attribute `this.currentIndex` is null.
+   * It is necesary to let the caller handle highlighting because this
+   * method is used in composition pattern (search engine of notebook cells)
+   * and highligthing on the composer (notebook) level needs to switch to next
+   * engine (cell) with matches.
+   *
+   * @param newText The replacement text.
+   * @returns Whether a replace occurred.
+   */
+  replaceCurrentMatch(
+    newText: string,
+    loop?: boolean,
+    options?: IReplaceOptions
+  ): Promise<boolean> {
+    if (!this.isActive) {
+      return Promise.resolve(false);
+    }
+
+    let occurred = false;
+
+    if (
+      this.currentIndex !== null &&
+      this.currentIndex < this.cmHandler.matches.length
+    ) {
+      const match = this.getCurrentMatch();
+      // If cursor there is no match selected, highlight the next match
+      if (!match) {
+        this.currentIndex = null;
+      } else {
+        this.cmHandler.matches.splice(this.currentIndex, 1);
+        this.currentIndex =
+          this.currentIndex < this.cmHandler.matches.length
+            ? Math.max(this.currentIndex - 1, 0)
+            : null;
+        const substitutedText = options?.regularExpression
+          ? match!.text.replace(this.query!, newText)
+          : newText;
+        const insertText = options?.preserveCase
+          ? GenericSearchProvider.preserveCase(match.text, substitutedText)
+          : substitutedText;
+        this.model.sharedModel.updateSource(
+          match!.position,
+          match!.position + match!.text.length,
+          insertText
+        );
+        occurred = true;
+      }
+    }
+
+    return Promise.resolve(occurred);
+  }
+
+  /**
+   * Replace all matches in the cell source with the provided text
+   *
+   * @param newText The replacement text.
+   * @returns Whether a replace occurred.
+   */
+  replaceAllMatches(
+    newText: string,
+    options?: IReplaceOptions
+  ): Promise<boolean> {
+    if (!this.isActive) {
+      return Promise.resolve(false);
+    }
+
+    let occurred = this.cmHandler.matches.length > 0;
+    let src = this.model.sharedModel.getSource();
+    let lastEnd = 0;
+    const finalSrc = this.cmHandler.matches.reduce((agg, match) => {
+      const start = match.position as number;
+      const end = start + match.text.length;
+      const substitutedText = options?.regularExpression
+        ? match!.text.replace(this.query!, newText)
+        : newText;
+      const insertText = options?.preserveCase
+        ? GenericSearchProvider.preserveCase(match.text, substitutedText)
+        : substitutedText;
+      const newStep = `${agg}${src.slice(lastEnd, start)}${insertText}`;
+      lastEnd = end;
+      return newStep;
+    }, '');
+
+    if (occurred) {
+      this.cmHandler.matches = [];
+      this.currentIndex = null;
+      this.model.sharedModel.setSource(`${finalSrc}${src.slice(lastEnd)}`);
+    }
+    return Promise.resolve(occurred);
+  }
+
+  /**
+   * Get the current match if it exists.
+   *
+   * @returns The current match
+   */
+  getCurrentMatch(): ISearchMatch | undefined {
+    if (this.currentIndex === null) {
+      return undefined;
+    } else {
+      let match: ISearchMatch | undefined = undefined;
+      if (this.currentIndex < this.cmHandler.matches.length) {
+        match = this.cmHandler.matches[this.currentIndex];
+      }
+      return match;
+    }
+  }
+
+  /**
+   * Callback on source change
+   *
+   * @param emitter Source of the change
+   * @param changes Source change
+   */
+  protected async onSharedModelChanged(
+    emitter: ISharedText,
+    changes: SourceChange
+  ): Promise<void> {
+    if (changes.sourceChange) {
+      await this.updateCodeMirror(emitter.getSource());
+      this._stateChanged.emit();
+    }
+  }
+
+  /**
+   * Update matches
+   */
+  protected async updateCodeMirror(content: string) {
+    if (this.query !== null && this.isActive) {
+      const allMatches = await TextSearchEngine.search(this.query, content);
+      if (this._inSelection) {
+        const editor = this.editor!;
+        const start = editor.getOffsetAt(this._inSelection.start);
+        const end = editor.getOffsetAt(this._inSelection.end);
+        this.cmHandler.matches = allMatches.filter(
+          match => match.position >= start && match.position <= end
+        );
+        // A special case to always have a current match when in line selection mode.
+        if (
+          this.cmHandler.currentIndex === null &&
+          this.cmHandler.matches.length > 0
+        ) {
+          await this.cmHandler.highlightNext({
+            from: 'selection',
+            select: false,
+            scroll: false
+          });
+        }
+        this.currentIndex = this.cmHandler.currentIndex;
+      } else {
+        this.cmHandler.matches = allMatches;
+      }
+    } else {
+      this.cmHandler.matches = [];
+    }
+  }
+
+  /**
+   * Current match index
+   */
+  protected currentIndex: number | null = null;
+  /**
+   * Current search filters
+   */
+  protected filters: IFilters | undefined;
+  /**
+   * Current search query
+   */
+  protected query: RegExp | null = null;
+  // Needs to be protected so subclass can emit the signal too.
+  protected _stateChanged: Signal<IBaseSearchProvider, void>;
+  private _isActive = true;
+  private _inSelection: CodeEditor.IRange | null = null;
+  private _isDisposed = false;
+  private _cmHandler: CodeMirrorSearchHighlighter | null = null;
+}
+
+/**
+ * Matches to be highlighted.
+ */
+interface IEffectValue {
+  matches: ISearchMatch[];
+  currentMatch: ISearchMatch | null;
+}
+
+/**
+ * Helper class to highlight texts in a code mirror editor.
+ *
+ * Highlighted texts (aka `matches`) must be provided through
+ * the `matches` attributes.
+ *
+ * **NOTES:**
+ * - to retain the selection visibility `drawSelection` extension is needed.
+ * - highlighting starts from the cursor (if editor is focused and `from` is set
+ *   to `'auto'`, cursor moved, or `from` argument is set to `'selection'` or
+ *   `'selection-start'`), or from last "current" match otherwise.
+ * - `currentIndex` is the (readonly) source of truth for the current match.
+ */
+export class CodeMirrorSearchHighlighter {
+  /**
+   * Constructor
+   *
+   * @param editor The CodeMirror editor
+   */
+  constructor(editor: CodeMirrorEditor | null) {
+    this._cm = editor;
+    this._matches = new Array<ISearchMatch>();
+    this._currentIndex = null;
+
+    this._highlightEffect = StateEffect.define<IEffectValue>({
+      map: (value, mapping) => {
+        const transform = (v: ISearchMatch) => ({
+          text: v.text,
+          position: mapping.mapPos(v.position)
+        });
+        return {
+          matches: value.matches.map(transform),
+          currentMatch: value.currentMatch
+            ? transform(value.currentMatch)
+            : null
+        };
+      }
+    });
+    this._highlightMark = Decoration.mark({ class: 'cm-searching' });
+    this._currentMark = Decoration.mark({ class: 'jp-current-match' });
+
+    this._highlightField = StateField.define<DecorationSet>({
+      create: () => {
+        return Decoration.none;
+      },
+      update: (highlights, transaction) => {
+        highlights = highlights.map(transaction.changes);
+        for (let ef of transaction.effects) {
+          if (ef.is(this._highlightEffect)) {
+            const e = ef as StateEffect<IEffectValue>;
+            if (e.value.matches.length) {
+              // Note: nesting will vary; sometimes `.cm-searching` will be
+              // inside `.jp-current-match`, sometime the other way round.
+              highlights = highlights.update({
+                add: e.value.matches.map(m =>
+                  this._highlightMark.range(
+                    m.position,
+                    m.position + m.text.length
+                  )
+                ),
+                // filter out old marks
+                filter: () => false
+              });
+              highlights = highlights.update({
+                add: e.value.currentMatch
+                  ? [
+                      this._currentMark.range(
+                        e.value.currentMatch.position,
+                        e.value.currentMatch.position +
+                          e.value.currentMatch.text.length
+                      )
+                    ]
+                  : []
+              });
+            } else {
+              highlights = Decoration.none;
+            }
+          }
+        }
+        return highlights;
+      },
+      provide: f => EditorView.decorations.from(f)
+    });
+
+    this._domEventHandlers = EditorView.domEventHandlers({
+      focus: () => {
+        // Set cursor on active match when editor gets focused.
+        this._selectCurrentMatch();
+      }
+    });
+  }
+
+  /**
+   * The current index of the selected match.
+   */
+  get currentIndex(): number | null {
+    return this._currentIndex;
+  }
+
+  /**
+   * The list of matches
+   */
+  get matches(): ISearchMatch[] {
+    return this._matches;
+  }
+  set matches(v: ISearchMatch[]) {
+    this._matches = v;
+    if (
+      this._currentIndex !== null &&
+      this._currentIndex > this._matches.length
+    ) {
+      this._currentIndex = this._matches.length > 0 ? 0 : null;
+    }
+    this._highlightCurrentMatch({ select: false });
+  }
+
+  private _current: ISearchMatch | null = null;
+
+  /**
+   * Whether the cursor/selection should not be modified.
+   */
+  get protectSelection(): boolean {
+    return this._protectSelection;
+  }
+  set protectSelection(v: boolean) {
+    this._protectSelection = v;
+  }
+  private _protectSelection: boolean;
+
+  /**
+   * Clear all highlighted matches
+   */
+  clearHighlight(): void {
+    this._currentIndex = null;
+    this._highlightCurrentMatch();
+  }
+
+  /**
+   * Clear the highlighted matches.
+   */
+  endQuery(): Promise<void> {
+    this._currentIndex = null;
+    this._matches = [];
+
+    if (this._cm) {
+      this._cm.editor.dispatch({
+        effects: this._highlightEffect.of({ matches: [], currentMatch: null })
+      });
+    }
+
+    return Promise.resolve();
+  }
+
+  /**
+   * Highlight the next match
+   *
+   * @returns The next match if available
+   */
+  highlightNext(
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    this._currentIndex = this._findNext(false, options?.from ?? 'auto');
+    this._highlightCurrentMatch(options);
+    return Promise.resolve(
+      this._currentIndex !== null
+        ? this._matches[this._currentIndex]
+        : undefined
+    );
+  }
+
+  /**
+   * Highlight the previous match
+   *
+   * @returns The previous match if available
+   */
+  highlightPrevious(
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    this._currentIndex = this._findNext(true, options?.from ?? 'auto');
+    this._highlightCurrentMatch(options);
+    return Promise.resolve(
+      this._currentIndex !== null
+        ? this._matches[this._currentIndex]
+        : undefined
+    );
+  }
+
+  /**
+   * Set the editor
+   *
+   * @param editor Editor
+   */
+  setEditor(editor: CodeMirrorEditor): void {
+    if (this._cm) {
+      throw new Error('CodeMirrorEditor already set.');
+    } else {
+      this._cm = editor;
+      if (this._currentIndex !== null) {
+        this._highlightCurrentMatch();
+      }
+      this._cm.editor.dispatch({
+        effects: StateEffect.appendConfig.of(this._domEventHandlers)
+      });
+      this._refresh();
+    }
+  }
+
+  private _selectCurrentMatch(scroll = true): void {
+    // This method has two responsibilities:
+    // 1) Scroll the current match into the view - useful for long lines,
+    //    and file editors with more lines that fit on the screen
+    // 2) When user has focus on the editor (not search box) and presses
+    //    ctrl + g/ctrl + shift + g to jump to next match they want their
+    //    cursor to jump too.
+    // We execute (1) and (2) together as CodeMirror has a special code path
+    // to handle both in a single dispatch.
+    // The (2) case is inapplicable to search in selection mode, as it would
+    // invalidate the query selection, so in that case we only execute (1).
+    const match = this._current;
+    if (!match) {
+      return;
+    }
+    if (!this._cm) {
+      return;
+    }
+    const cursor = {
+      anchor: match.position,
+      head: match.position + match.text.length
+    };
+    const selection = this._cm.editor.state.selection.main;
+    if (
+      (selection.from === match.position &&
+        selection.to === match.position + match.text.length) ||
+      this._protectSelection
+    ) {
+      // Correct selection is already set or search is restricted to selection:
+      // scroll without changing the selection.
+      if (scroll) {
+        this._cm.editor.dispatch({
+          effects: EditorView.scrollIntoView(
+            EditorSelection.range(cursor.anchor, cursor.head)
+          )
+        });
+        return;
+      }
+    } else {
+      this._cm.editor.dispatch({
+        selection: cursor,
+        scrollIntoView: scroll
+      });
+    }
+  }
+
+  private _highlightCurrentMatch(options?: IHighlightMatchOptions): void {
+    if (!this._cm) {
+      // no-op
+      return;
+    }
+
+    // Highlight the current index
+    if (this._currentIndex !== null) {
+      const match = this.matches[this._currentIndex];
+      this._current = match;
+      // We do not change selection nor scroll if:
+      // - user is selecting text,
+      // - document was modified
+      if (options?.select ?? true) {
+        if (this._cm.hasFocus()) {
+          // If editor is focused we actually set the cursor on the match.
+          this._selectCurrentMatch(options?.scroll ?? true);
+        } else if (options?.scroll ?? true) {
+          // otherwise we just scroll to preserve the selection.
+          this._cm.editor.dispatch({
+            effects: EditorView.scrollIntoView(match.position)
+          });
+        }
+      }
+    } else {
+      this._current = null;
+    }
+    this._refresh();
+  }
+
+  private _refresh(): void {
+    if (!this._cm) {
+      // no-op
+      return;
+    }
+    let effects: StateEffect<unknown>[] = [
+      this._highlightEffect.of({
+        matches: this.matches,
+        currentMatch: this._current
+      })
+    ];
+
+    if (!this._cm!.state.field(this._highlightField, false)) {
+      effects.push(StateEffect.appendConfig.of([this._highlightField]));
+    }
+    this._cm!.editor.dispatch({ effects });
+  }
+
+  private _findNext(
+    reverse: boolean,
+    from: SearchStartAnchor = 'auto'
+  ): number | null {
+    if (this._matches.length === 0) {
+      // No-op
+      return null;
+    }
+
+    let lastPosition = 0;
+    if ((from === 'auto' && this._cm!.hasFocus()) || from === 'selection') {
+      const cursor = this._cm!.state.selection.main;
+      lastPosition = reverse ? cursor.anchor : cursor.head;
+    } else if (from === 'selection-start') {
+      const cursor = this._cm!.state.selection.main;
+      lastPosition = Math.min(cursor.anchor, cursor.head);
+    } else if (from === 'start') {
+      lastPosition = 0;
+    } else if (this._current) {
+      lastPosition = reverse
+        ? this._current.position
+        : this._current.position + this._current.text.length;
+    }
+    if (lastPosition === 0 && reverse && this.currentIndex === null) {
+      // The default position is (0, 0) but we want to start from the end in that case
+      lastPosition = this._cm!.doc.length;
+    }
+
+    const position = lastPosition;
+
+    let found = Utils.findNext(
+      this._matches,
+      position,
+      0,
+      this._matches.length - 1
+    );
+
+    if (found === null) {
+      // Don't loop
+      return reverse ? this._matches.length - 1 : null;
+    }
+
+    if (reverse) {
+      found -= 1;
+      if (found < 0) {
+        // Don't loop
+        return null;
+      }
+    }
+
+    return found;
+  }
+
+  private _cm: CodeMirrorEditor | null;
+  private _currentIndex: number | null;
+  private _matches: ISearchMatch[];
+  private _highlightEffect: StateEffectType<IEffectValue>;
+  private _highlightMark: Decoration;
+  private _currentMark: Decoration;
+  private _highlightField: StateField<DecorationSet>;
+  private _domEventHandlers: Extension;
+}
+
+/**
+ * Helpers namespace
+ */
+namespace Utils {
+  /**
+   * Find the closest match at `position` just after it.
+   *
+   * #### Notes
+   * Search is done using a binary search algorithm
+   *
+   * @param matches List of matches
+   * @param position Searched position
+   * @param lowerBound Lower range index
+   * @param higherBound High range index
+   * @returns The next match or null if none exists
+   */
+  export function findNext(
+    matches: ISearchMatch[],
+    position: number,
+    lowerBound = 0,
+    higherBound = Infinity
+  ): number | null {
+    higherBound = Math.min(matches.length - 1, higherBound);
+
+    while (lowerBound <= higherBound) {
+      let middle = Math.floor(0.5 * (lowerBound + higherBound));
+      const currentPosition = matches[middle].position;
+
+      if (currentPosition < position) {
+        lowerBound = middle + 1;
+        if (
+          lowerBound < matches.length &&
+          matches[lowerBound].position > position
+        ) {
+          return lowerBound;
+        }
+      } else if (currentPosition > position) {
+        higherBound = middle - 1;
+        if (higherBound > 0 && matches[higherBound].position < position) {
+          return middle;
+        }
+      } else {
+        return middle;
+      }
+    }
+
+    // Next could be the first item
+    const first = lowerBound > 0 ? lowerBound - 1 : 0;
+    const match = matches[first];
+    return match.position >= position ? first : null;
+  }
+}
diff --git a/packages/codemirror/src/theme.ts b/packages/codemirror/src/theme.ts
new file mode 100644
index 000000000000..eec13b0a5c60
--- /dev/null
+++ b/packages/codemirror/src/theme.ts
@@ -0,0 +1,242 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  defaultHighlightStyle,
+  HighlightStyle,
+  syntaxHighlighting
+} from '@codemirror/language';
+import { Extension } from '@codemirror/state';
+import { EditorView } from '@codemirror/view';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { tags as t } from '@lezer/highlight';
+import { IEditorTheme, IEditorThemeRegistry } from './token';
+
+export const jupyterEditorTheme = EditorView.theme({
+  /**
+   * CodeMirror themes are handling the background/color in this way. This works
+   * fine for CodeMirror editors outside the notebook, but the notebook styles
+   * these things differently.
+   */
+  '&': {
+    background: 'var(--jp-layout-color0)',
+    color: 'var(--jp-content-font-color1)'
+  },
+
+  /* In the notebook, we want this styling to be handled by its container */
+  '.jp-CodeConsole &, .jp-Notebook &': {
+    background: 'transparent'
+  },
+
+  '.cm-content': {
+    caretColor: 'var(--jp-editor-cursor-color)'
+  },
+
+  /* Inherit font family from .cm-editor */
+  '.cm-scroller': {
+    fontFamily: 'inherit'
+  },
+
+  '.cm-cursor, .cm-dropCursor': {
+    borderLeft:
+      'var(--jp-code-cursor-width0) solid var(--jp-editor-cursor-color)'
+  },
+
+  '.cm-selectionBackground, .cm-content ::selection': {
+    backgroundColor: 'var(--jp-editor-selected-background)'
+  },
+
+  '&.cm-focused > .cm-scroller > .cm-selectionLayer .cm-selectionBackground': {
+    backgroundColor: 'var(--jp-editor-selected-focused-background)'
+  },
+
+  '.cm-gutters': {
+    borderRight: '1px solid var(--jp-border-color2)',
+    backgroundColor: 'var(--jp-layout-color2)'
+  },
+
+  '.cm-gutter': {
+    backgroundColor: 'var(--jp-layout-color2)'
+  },
+
+  '.cm-activeLine': {
+    backgroundColor:
+      'color-mix(in srgb, var(--jp-layout-color3) 25%, transparent)'
+  },
+
+  '.cm-lineNumbers': {
+    color: 'var(--jp-ui-font-color2)'
+  },
+
+  '.cm-searchMatch': {
+    backgroundColor: 'var(--jp-search-unselected-match-background-color)',
+    color: 'var(--jp-search-unselected-match-color)'
+  },
+
+  '.cm-searchMatch.cm-searchMatch-selected': {
+    backgroundColor:
+      'var(--jp-search-selected-match-background-color) !important',
+    color: 'var(--jp-search-selected-match-color) !important'
+  },
+
+  '.cm-tooltip': {
+    backgroundColor: 'var(--jp-layout-color1)'
+  }
+});
+
+// The list of available tags for syntax highlighting is available at
+// https://lezer.codemirror.net/docs/ref/#highlight.tags
+export const jupyterHighlightStyle = HighlightStyle.define([
+  // Order matters - a rule will override the previous ones; important for example for in headings styles.
+  { tag: t.meta, color: 'var(--jp-mirror-editor-meta-color)' },
+  { tag: t.heading, color: 'var(--jp-mirror-editor-header-color)' },
+  {
+    tag: [t.heading1, t.heading2, t.heading3, t.heading4],
+    color: 'var(--jp-mirror-editor-header-color)',
+    fontWeight: 'bold'
+  },
+  {
+    tag: t.keyword,
+    color: 'var(--jp-mirror-editor-keyword-color)',
+    fontWeight: 'bold'
+  },
+  { tag: t.atom, color: 'var(--jp-mirror-editor-atom-color)' },
+  { tag: t.number, color: 'var(--jp-mirror-editor-number-color)' },
+  {
+    tag: [t.definition(t.name), t.function(t.definition(t.variableName))],
+    color: 'var(--jp-mirror-editor-def-color)'
+  },
+  {
+    tag: t.standard(t.variableName),
+    color: 'var(--jp-mirror-editor-builtin-color)'
+  },
+  {
+    tag: [t.special(t.variableName), t.self],
+    color: 'var(--jp-mirror-editor-variable-2-color)'
+  },
+  { tag: t.punctuation, color: 'var(--jp-mirror-editor-punctuation-color)' },
+  { tag: t.propertyName, color: 'var(--jp-mirror-editor-property-color)' },
+  {
+    tag: t.operator,
+    color: 'var(--jp-mirror-editor-operator-color)',
+    fontWeight: 'bold'
+  },
+  {
+    tag: t.comment,
+    color: 'var(--jp-mirror-editor-comment-color)',
+    fontStyle: 'italic'
+  },
+  { tag: t.string, color: 'var(--jp-mirror-editor-string-color)' },
+  {
+    tag: [t.labelName, t.monospace, t.special(t.string)],
+    color: 'var(--jp-mirror-editor-string-2-color)'
+  },
+  { tag: t.bracket, color: 'var(--jp-mirror-editor-bracket-color)' },
+  { tag: t.tagName, color: 'var(--jp-mirror-editor-tag-color)' },
+  { tag: t.attributeName, color: 'var(--jp-mirror-editor-attribute-color)' },
+  { tag: t.quote, color: 'var(--jp-mirror-editor-quote-color)' },
+  {
+    tag: t.link,
+    color: 'var(--jp-mirror-editor-link-color)',
+    textDecoration: 'underline'
+  },
+  { tag: [t.separator, t.derefOperator, t.paren], color: '' },
+  { tag: t.strong, fontWeight: 'bold' },
+  { tag: t.emphasis, fontStyle: 'italic' },
+  { tag: t.strikethrough, textDecoration: 'line-through' },
+  {
+    tag: t.bool,
+    color: 'var(--jp-mirror-editor-keyword-color)',
+    fontWeight: 'bold'
+  }
+]);
+
+/**
+ * JupyterLab CodeMirror 6 theme
+ */
+export const jupyterTheme: Extension = [
+  jupyterEditorTheme,
+  syntaxHighlighting(jupyterHighlightStyle)
+];
+
+/**
+ * CodeMirror 6 theme registry
+ */
+export class EditorThemeRegistry implements IEditorThemeRegistry {
+  /**
+   * CodeMirror 6 themes
+   */
+  private _themeMap: Map<string, IEditorTheme> = new Map([
+    ['jupyter', Object.freeze({ name: 'jupyter', theme: jupyterTheme })]
+  ]);
+
+  /**
+   * Get all themes
+   */
+  get themes(): IEditorTheme[] {
+    return Array.from(this._themeMap.values());
+  }
+
+  /**
+   * Get the default CodeMirror 6 theme for JupyterLab
+   *
+   * @returns Default theme
+   */
+  defaultTheme(): Extension {
+    return this._themeMap.get('jupyter')!.theme;
+  }
+
+  /**
+   * Register a new theme.
+   *
+   * @param theme Codemirror 6 theme
+   */
+  addTheme(theme: IEditorTheme) {
+    if (this._themeMap.has(theme.name)) {
+      throw new Error(`A theme named '${theme.name}' is already registered.`);
+    }
+    this._themeMap.set(theme.name, { displayName: theme.name, ...theme });
+  }
+
+  /**
+   * Get a theme.
+   *
+   * #### Notes
+   * It falls back to the default theme
+   *
+   * @param name Theme name
+   * @returns Theme extension
+   */
+  getTheme(name: string): Extension {
+    const ext = this._themeMap.get(name)?.theme;
+
+    return ext ?? this.defaultTheme();
+  }
+}
+
+/**
+ * EditorThemeRegistry namespace
+ */
+export namespace EditorThemeRegistry {
+  /**
+   * Get the default editor themes.
+   *
+   * @param translator Application translator
+   * @returns Default CodeMirror 6 themes
+   */
+  export function getDefaultThemes(
+    translator?: ITranslator | null
+  ): ReadonlyArray<Readonly<IEditorTheme>> {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+    return [
+      Object.freeze({
+        name: 'codemirror',
+        displayName: trans.__('codemirror'),
+        theme: [
+          EditorView.baseTheme({}),
+          syntaxHighlighting(defaultHighlightStyle)
+        ]
+      })
+    ];
+  }
+}
diff --git a/packages/codemirror/src/token.ts b/packages/codemirror/src/token.ts
new file mode 100644
index 000000000000..799cbc43dbf2
--- /dev/null
+++ b/packages/codemirror/src/token.ts
@@ -0,0 +1,439 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import type { LanguageSupport } from '@codemirror/language';
+import type { Extension, StateEffect } from '@codemirror/state';
+import type { EditorView } from '@codemirror/view';
+import type { CodeEditor } from '@jupyterlab/codeeditor';
+import type { ITranslator } from '@jupyterlab/translation';
+import { ReadonlyJSONObject, Token } from '@lumino/coreutils';
+import type { IDisposable } from '@lumino/disposable';
+import type { ISignal } from '@lumino/signaling';
+
+/**
+ * Dynamically configurable editor extension interface.
+ */
+export interface IConfigurableExtension<T> {
+  /**
+   * Create an editor extension for the provided value.
+   *
+   * @param value Editor extension parameter value
+   * @returns The editor extension
+   */
+  instance(value: T): Extension;
+  /**
+   * Reconfigure an editor extension.
+   *
+   * ### Notes
+   * Return `null` if the value does not trigger
+   * a state effect. In particular for immutable extension.
+   *
+   * @param value Editor extension value
+   * @returns Editor state effect
+   */
+  reconfigure(value: T): StateEffect<T> | null;
+}
+
+/**
+ * Editor language token.
+ */
+export const IEditorExtensionRegistry = new Token<IEditorExtensionRegistry>(
+  '@jupyterlab/codemirror:IEditorExtensionRegistry',
+  `A registry for CodeMirror extension factories.`
+);
+
+/**
+ * Interface of CodeMirror editor extensions handler
+ *
+ * ### Notes
+ * This handler is instantiated for each editor to manage its own
+ * set of extensions.
+ */
+export interface IExtensionsHandler extends IDisposable {
+  /**
+   * Signal triggered when the editor configuration changes.
+   * It provides the mapping of the new configuration (only those that changed).
+   *
+   * It should result in a call to `IExtensionsHandler.reconfigureExtensions`.
+   */
+  readonly configChanged: ISignal<this, Record<string, any>>;
+
+  /**
+   * Get a config option for the editor.
+   */
+  getOption(option: string): unknown;
+
+  /**
+   * Whether the option exists or not.
+   */
+  hasOption(option: string): boolean;
+
+  /**
+   * Set a config option for the editor.
+   *
+   * You will need to reconfigure the editor extensions by listening
+   * to `IExtensionsHandler.configChanged`.
+   */
+  setOption(option: string, value: unknown): void;
+
+  /**
+   * Set config options for the editor.
+   *
+   * You will need to reconfigure the editor extensions by listening
+   * to `IExtensionsHandler.configChanged`.
+   *
+   * This method is preferred when setting several options. The
+   * options are set within an operation, which only performs
+   * the costly update at the end, and not after every option
+   * is set.
+   */
+  setOptions(options: Record<string, any>): void;
+
+  /**
+   * Returns the list of initial extensions of an editor.
+   *
+   * @returns The initial editor extensions
+   */
+  getInitialExtensions(): Extension[];
+
+  /**
+   * Appends extensions to the top-level configuration of the
+   * editor.
+   *
+   * @alpha
+   * @param view Editor view
+   * @param extension Editor extension to inject
+   */
+  injectExtension(view: EditorView, extension: Extension): void;
+
+  /**
+   * Reconfigures the extension mapped with key with the provided value.
+   *
+   * @param view Editor view
+   * @param key Parameter unique key
+   * @param value Parameter value to be applied
+   */
+  reconfigureExtension<T>(view: EditorView, key: string, value: T): void;
+
+  /**
+   * Reconfigures all the extensions mapped with the options from the
+   * provided partial configuration.
+   *
+   * @param view Editor view
+   * @param configuration Editor configuration
+   */
+  reconfigureExtensions(
+    view: EditorView,
+    configuration: Record<string, any>
+  ): void;
+}
+
+/**
+ * Editor extension factory interface.
+ *
+ * @template T Extension parameter type.
+ */
+export interface IEditorExtensionFactory<T = undefined> {
+  /**
+   * Editor extension unique identifier.
+   */
+  readonly name: string;
+  /**
+   * Extension factory.
+   *
+   * @param options
+   * @returns The extension builder or null if the extension is not active for that document
+   */
+  readonly factory: (
+    options: IEditorExtensionFactory.IOptions
+  ) => IConfigurableExtension<T> | null;
+  /**
+   * Extension default value
+   *
+   * ### Notes
+   * If undefined but has a schema, the default value will be `null` to be JSON serializable.
+   */
+  readonly default?: T;
+  /**
+   * JSON schema defining the configurable option through user settings.
+   *
+   * If this is defined, every time the setting changes, `IConfigurableExtension.reconfigure`
+   * will be called with the new setting value.
+   *
+   * ### Notes
+   * If no default value is provided, `IEditorExtensionFactory.default` will be used.
+   * If the extension is to be handled by the code only, this should not be defined.
+   */
+  readonly schema?: ReadonlyJSONObject;
+}
+
+/**
+ * CodeMirror extension factory namespace
+ */
+export namespace IEditorExtensionFactory {
+  /**
+   * CodeMirror extension factory options
+   */
+  export interface IOptions {
+    /**
+     * Whether the editor will be inline or not.
+     */
+    inline: boolean;
+    /**
+     * The model used by the editor.
+     */
+    model: CodeEditor.IModel;
+  }
+}
+
+/**
+ * Interface for generating editor configuration registry.
+ */
+export interface IEditorExtensionRegistry {
+  /**
+   * Base editor configuration
+   *
+   * This is the default configuration.
+   */
+  readonly baseConfiguration: Record<string, any>;
+
+  /**
+   * Add a default editor extension
+   *
+   * @template T Extension parameter type
+   * @param factory Extension factory
+   */
+  addExtension<T>(factory: IEditorExtensionFactory<T>): void;
+
+  /**
+   * Create a new extensions handler for an editor
+   *
+   * @param options Extensions options and initial editor configuration
+   */
+  createNew(
+    options: IEditorExtensionFactory.IOptions & {
+      /**
+       * The configuration options for the editor.
+       */
+      config?: Record<string, any>;
+    }
+  ): IExtensionsHandler;
+}
+
+/**
+ * Editor factory constructor options
+ */
+export interface IEditorFactoryOptions {
+  /**
+   * Editor extensions registry
+   */
+  extensions?: IEditorExtensionRegistry;
+  /**
+   * Editor languages registry
+   */
+  languages?: IEditorLanguageRegistry;
+  /**
+   * Application translation registry
+   */
+  translator?: ITranslator;
+}
+
+/**
+ * Editor language token.
+ */
+export const IEditorLanguageRegistry = new Token<IEditorLanguageRegistry>(
+  '@jupyterlab/codemirror:IEditorLanguageRegistry',
+  'A registry for CodeMirror languages.'
+);
+
+/**
+ * The interface of a codemirror language specification.
+ */
+export interface IEditorLanguage {
+  /**
+   * Language name.
+   */
+  readonly name: string;
+  /**
+   * Language displayed name.
+   */
+  readonly displayName?: string;
+  /**
+   * Language name alias.
+   */
+  readonly alias?: readonly string[];
+  /**
+   * Language mime types.
+   */
+  readonly mime: string | readonly string[];
+  /**
+   * Language support loader.
+   */
+  readonly load?: () => Promise<LanguageSupport>;
+  /**
+   * Supported file extensions.
+   */
+  readonly extensions?: readonly string[];
+  /**
+   * Filename expression supported by the language.
+   */
+  readonly filename?: RegExp;
+  /**
+   * CodeMirror language support.
+   *
+   * ### Notes
+   * It can provided directly or it will be obtained using `load`.
+   */
+  support?: LanguageSupport;
+}
+
+/**
+ * Editor language interface
+ */
+export interface IEditorLanguageRegistry {
+  /**
+   * Register a new language for CodeMirror
+   *
+   * @param language Language to register
+   */
+  addLanguage(language: IEditorLanguage): void;
+
+  /**
+   * Find a codemirror language by name or CodeMirror spec.
+   *
+   * @param language The CodeMirror language
+   * @param fallback Whether to fallback to default mimetype spec or not
+   * @returns The language or null
+   */
+  findBest(
+    language: string | IEditorLanguage,
+    fallback?: boolean
+  ): IEditorLanguage | null;
+
+  /**
+   * Find a codemirror language by MIME.
+   *
+   * @param mime Mime type to look for
+   * @returns The language or null
+   */
+  findByMIME(mime: string | readonly string[]): IEditorLanguage | null;
+
+  /**
+   * Find a codemirror language by name.
+   *
+   * @param name The language name
+   * @returns The language or null
+   */
+  findByName(name: string): IEditorLanguage | null;
+
+  /**
+   * Find a codemirror language by extension.
+   *
+   * @param ext The extension name
+   * @returns The language or null
+   */
+  findByExtension(ext: string | readonly string[]): IEditorLanguage | null;
+
+  /**
+   * Find a codemirror language by filename.
+   *
+   * @param name File name
+   * @returns The language or null
+   */
+  findByFileName(name: string): IEditorLanguage | null;
+
+  /**
+   * Load a CodeMirror language specified by name or Codemirror spec.
+   *
+   * @param language - The language to ensure.  If it is a string, uses {@link findBest}
+   *   to get the appropriate spec.
+   *
+   * @returns A promise that resolves when the language is available.
+   */
+  getLanguage(
+    language: string | IEditorLanguage
+  ): Promise<IEditorLanguage | null>;
+
+  /**
+   * Get the raw list of available languages specs.
+   *
+   * @returns The available languages
+   */
+  getLanguages(): IEditorLanguage[];
+
+  /**
+   * Parse and style a string.
+   *
+   * @param code Code to highlight
+   * @param language Code language
+   * @param el HTML element into which the highlighted code will be inserted
+   */
+  highlight(
+    code: string,
+    language: IEditorLanguage | null,
+    el: HTMLElement
+  ): Promise<void>;
+}
+
+/**
+ * Editor theme token.
+ */
+export const IEditorThemeRegistry = new Token<IEditorThemeRegistry>(
+  '@jupyterlab/codemirror:IEditorThemeRegistry',
+  'A registry for CodeMirror theme.'
+);
+
+/**
+ * Editor theme interface
+ */
+export interface IEditorTheme {
+  /**
+   * Theme unique identifier
+   */
+  readonly name: string;
+  /**
+   * Theme name
+   */
+  readonly displayName?: string;
+  /**
+   * Editor extension for the theme
+   */
+  readonly theme: Extension;
+}
+
+/**
+ * Theme editor registry interface
+ */
+export interface IEditorThemeRegistry {
+  /**
+   * Register a new theme.
+   *
+   * @param theme Codemirror 6 theme
+   */
+  addTheme(theme: IEditorTheme): void;
+
+  /**
+   * Get the default CodeMirror 6 theme for JupyterLab
+   *
+   * @returns Default theme as a CodeMirror extension
+   */
+  defaultTheme(): Extension;
+
+  /**
+   * Get a theme.
+   *
+   * #### Notes
+   * It falls back to the default theme
+   *
+   * @param name Theme name
+   * @returns Theme extension
+   */
+  getTheme(name: string): Extension;
+
+  /**
+   * Get all themes
+   */
+  readonly themes: IEditorTheme[];
+}
diff --git a/packages/codemirror/src/tokens.ts b/packages/codemirror/src/tokens.ts
deleted file mode 100644
index 31812a2d6c8c..000000000000
--- a/packages/codemirror/src/tokens.ts
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Token } from '@lumino/coreutils';
-import CodeMirror from 'codemirror';
-
-/* tslint:disable */
-/**
- * The CodeMirror token.
- */
-export const ICodeMirror = new Token<ICodeMirror>(
-  '@jupyterlab/codemirror:ICodeMirror'
-);
-/* tslint:enable */
-
-/** The CodeMirror interface. */
-export interface ICodeMirror {
-  /**
-   * A singleton CodeMirror module, rexported.
-   */
-  CodeMirror: typeof CodeMirror;
-
-  /**
-   * A function to allow extensions to ensure that
-   * the vim keymap has been imported
-   */
-  ensureVimKeymap: () => Promise<void>;
-}
diff --git a/packages/codemirror/src/typings.d.ts b/packages/codemirror/src/typings.d.ts
index ce8088cd9690..e5c30d0194d7 100644
--- a/packages/codemirror/src/typings.d.ts
+++ b/packages/codemirror/src/typings.d.ts
@@ -1,5 +1,13 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-/// <reference path="../typings/codemirror/codemirror.d.ts"/>
-/// <reference types="@types/codemirror/addon/search/searchcursor"/>
+declare module '@codemirror/legacy-modes/mode/python' {
+  import { StreamParser } from '@codemirror/language';
+
+  export const python: StreamParser<unknown>;
+  export const cython: StreamParser<unknown>;
+
+  export function mkPython(parserConf: any): StreamParser<unknown>;
+}
diff --git a/packages/codemirror/style/base.css b/packages/codemirror/style/base.css
index 2af8af92cbda..d3cf35f6fb93 100644
--- a/packages/codemirror/style/base.css
+++ b/packages/codemirror/style/base.css
@@ -3,72 +3,50 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-.CodeMirror {
+.cm-editor {
   line-height: var(--jp-code-line-height);
   font-size: var(--jp-code-font-size);
   font-family: var(--jp-code-font-family);
   border: 0;
   border-radius: 0;
   height: auto;
+
   /* Changed to auto to autogrow */
 }
 
-.CodeMirror pre {
+.cm-editor pre {
   padding: 0 var(--jp-code-padding);
 }
 
-.CodeMirror.cm-fat-cursor .cm-overlay.cm-searching {
-  opacity: 0.5;
-}
-
-.jp-CodeMirrorEditor[data-type='inline'] .CodeMirror-dialog {
+.jp-CodeMirrorEditor[data-type='inline'] .cm-dialog {
   background-color: var(--jp-layout-color0);
   color: var(--jp-content-font-color1);
 }
 
-/* This causes https://github.com/jupyter/jupyterlab/issues/522 */
-/* May not cause it not because we changed it! */
-.CodeMirror-lines {
-  padding: var(--jp-code-padding) 0;
-}
-
-.CodeMirror-linenumber {
-  padding: 0 8px;
-}
-
 .jp-CodeMirrorEditor {
   cursor: text;
 }
 
-.jp-CodeMirrorEditor[data-type='inline'] .CodeMirror-cursor {
-  border-left: var(--jp-code-cursor-width0) solid var(--jp-editor-cursor-color);
-}
-
 /* When zoomed out 67% and 33% on a screen of 1440 width x 900 height */
-@media screen and (min-width: 2138px) and (max-width: 4319px) {
-  .jp-CodeMirrorEditor[data-type='inline'] .CodeMirror-cursor {
+@media screen and (width >= 2138px) and (width <= 4319px) {
+  .jp-CodeMirrorEditor[data-type='inline'] .cm-cursor {
     border-left: var(--jp-code-cursor-width1) solid
       var(--jp-editor-cursor-color);
   }
 }
 
 /* When zoomed out less than 33% */
-@media screen and (min-width: 4320px) {
-  .jp-CodeMirrorEditor[data-type='inline'] .CodeMirror-cursor {
+@media screen and (width >= 4320px) {
+  .jp-CodeMirrorEditor[data-type='inline'] .cm-cursor {
     border-left: var(--jp-code-cursor-width2) solid
       var(--jp-editor-cursor-color);
   }
 }
 
-.CodeMirror.jp-mod-readOnly .CodeMirror-cursor {
+.cm-editor.jp-mod-readOnly .cm-cursor {
   display: none;
 }
 
-.CodeMirror-gutters {
-  border-right: 1px solid var(--jp-border-color2);
-  background-color: var(--jp-layout-color0);
-}
-
 .jp-CollaboratorCursor {
   border-left: 5px solid transparent;
   border-right: 5px solid transparent;
@@ -79,30 +57,38 @@
   margin-right: -5px;
 }
 
-.CodeMirror-selectedtext.cm-searching {
-  background-color: var(--jp-search-selected-match-background-color) !important;
-  color: var(--jp-search-selected-match-color) !important;
+.cm-searching,
+.cm-searching span {
+  /* `.cm-searching span`: we need to override syntax highlighting */
+  background-color: var(--jp-search-unselected-match-background-color);
+  color: var(--jp-search-unselected-match-color);
 }
 
-.cm-searching {
-  background-color: var(
-    --jp-search-unselected-match-background-color
-  ) !important;
-  color: var(--jp-search-unselected-match-color) !important;
+.cm-searching::selection,
+.cm-searching span::selection {
+  background-color: var(--jp-search-unselected-match-background-color);
+  color: var(--jp-search-unselected-match-color);
 }
 
-.cm-trailingspace {
-  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAFCAYAAAB4ka1VAAAAsElEQVQIHQGlAFr/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA7+r3zKmT0/+pk9P/7+r3zAAAAAAAAAAABAAAAAAAAAAA6OPzM+/q9wAAAAAA6OPzMwAAAAAAAAAAAgAAAAAAAAAAGR8NiRQaCgAZIA0AGR8NiQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQyoYJ/SY80UAAAAASUVORK5CYII=);
-  background-position: center left;
-  background-repeat: repeat-x;
+.jp-current-match > .cm-searching,
+.jp-current-match > .cm-searching span,
+.cm-searching > .jp-current-match,
+.cm-searching > .jp-current-match span {
+  background-color: var(--jp-search-selected-match-background-color);
+  color: var(--jp-search-selected-match-color);
 }
 
-.CodeMirror-focused .CodeMirror-selected {
-  background-color: var(--jp-editor-selected-focused-background);
+.jp-current-match > .cm-searching::selection,
+.cm-searching > .jp-current-match::selection,
+.jp-current-match > .cm-searching span::selection {
+  background-color: var(--jp-search-selected-match-background-color);
+  color: var(--jp-search-selected-match-color);
 }
 
-.CodeMirror-selected {
-  background-color: var(--jp-editor-selected-background);
+.cm-trailingspace {
+  background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAFCAYAAAB4ka1VAAAAsElEQVQIHQGlAFr/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA7+r3zKmT0/+pk9P/7+r3zAAAAAAAAAAABAAAAAAAAAAA6OPzM+/q9wAAAAAA6OPzMwAAAAAAAAAAAgAAAAAAAAAAGR8NiRQaCgAZIA0AGR8NiQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQyoYJ/SY80UAAAAASUVORK5CYII=);
+  background-position: center left;
+  background-repeat: repeat-x;
 }
 
 .jp-CollaboratorCursor-hover {
@@ -124,136 +110,22 @@
   border-left: 1px dashed var(--jp-border-color2);
 }
 
-/**
- * Here is our jupyter theme for CodeMirror syntax highlighting
- * This is used in our marked.js syntax highlighting and CodeMirror itself
- * The string "jupyter" is set in ../codemirror/widget.DEFAULT_CODEMIRROR_THEME
- * This came from the classic notebook, which came form highlight.js/GitHub
- */
-
-/**
- * CodeMirror themes are handling the background/color in this way. This works
- * fine for CodeMirror editors outside the notebook, but the notebook styles
- * these things differently.
- */
-.CodeMirror.cm-s-jupyter {
-  background: var(--jp-layout-color0);
-  color: var(--jp-content-font-color1);
-}
-
-/* In the notebook, we want this styling to be handled by its container */
-.jp-CodeConsole .CodeMirror.cm-s-jupyter,
-.jp-Notebook .CodeMirror.cm-s-jupyter {
-  background: transparent;
-}
-
-.cm-s-jupyter .CodeMirror-cursor {
-  border-left: var(--jp-code-cursor-width0) solid var(--jp-editor-cursor-color);
-}
-.cm-s-jupyter span.cm-keyword {
-  color: var(--jp-mirror-editor-keyword-color);
-  font-weight: bold;
-}
-.cm-s-jupyter span.cm-atom {
-  color: var(--jp-mirror-editor-atom-color);
-}
-.cm-s-jupyter span.cm-number {
-  color: var(--jp-mirror-editor-number-color);
-}
-.cm-s-jupyter span.cm-def {
-  color: var(--jp-mirror-editor-def-color);
-}
-.cm-s-jupyter span.cm-variable {
-  color: var(--jp-mirror-editor-variable-color);
-}
-.cm-s-jupyter span.cm-variable-2 {
-  color: var(--jp-mirror-editor-variable-2-color);
-}
-.cm-s-jupyter span.cm-variable-3 {
-  color: var(--jp-mirror-editor-variable-3-color);
-}
-.cm-s-jupyter span.cm-punctuation {
-  color: var(--jp-mirror-editor-punctuation-color);
-}
-.cm-s-jupyter span.cm-property {
-  color: var(--jp-mirror-editor-property-color);
-}
-.cm-s-jupyter span.cm-operator {
-  color: var(--jp-mirror-editor-operator-color);
-  font-weight: bold;
-}
-.cm-s-jupyter span.cm-comment {
-  color: var(--jp-mirror-editor-comment-color);
-  font-style: italic;
-}
-.cm-s-jupyter span.cm-string {
-  color: var(--jp-mirror-editor-string-color);
-}
-.cm-s-jupyter span.cm-string-2 {
-  color: var(--jp-mirror-editor-string-2-color);
-}
-.cm-s-jupyter span.cm-meta {
-  color: var(--jp-mirror-editor-meta-color);
-}
-.cm-s-jupyter span.cm-qualifier {
-  color: var(--jp-mirror-editor-qualifier-color);
-}
-.cm-s-jupyter span.cm-builtin {
-  color: var(--jp-mirror-editor-builtin-color);
-}
-.cm-s-jupyter span.cm-bracket {
-  color: var(--jp-mirror-editor-bracket-color);
-}
-.cm-s-jupyter span.cm-tag {
-  color: var(--jp-mirror-editor-tag-color);
-}
-.cm-s-jupyter span.cm-attribute {
-  color: var(--jp-mirror-editor-attribute-color);
-}
-.cm-s-jupyter span.cm-header {
-  color: var(--jp-mirror-editor-header-color);
-}
-.cm-s-jupyter span.cm-quote {
-  color: var(--jp-mirror-editor-quote-color);
-}
-.cm-s-jupyter span.cm-link {
-  color: var(--jp-mirror-editor-link-color);
-}
-.cm-s-jupyter span.cm-error {
-  color: var(--jp-mirror-editor-error-color);
-}
-.cm-s-jupyter span.cm-hr {
-  color: #999;
-}
-
-.cm-s-jupyter span.cm-tab {
-  background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAMCAYAAAAkuj5RAAAAAXNSR0IArs4c6QAAAGFJREFUSMft1LsRQFAQheHPowAKoACx3IgEKtaEHujDjORSgWTH/ZOdnZOcM/sgk/kFFWY0qV8foQwS4MKBCS3qR6ixBJvElOobYAtivseIE120FaowJPN75GMu8j/LfMwNjh4HUpwg4LUAAAAASUVORK5CYII=);
-  background-position: right;
-  background-repeat: no-repeat;
-}
-
-.cm-s-jupyter .CodeMirror-activeline-background,
-.cm-s-jupyter .CodeMirror-gutter {
-  background-color: var(--jp-layout-color2);
-}
-
 /* Styles for shared cursors (remote cursor locations and selected ranges) */
-.jp-CodeMirrorEditor .remote-caret {
+.jp-CodeMirrorEditor .cm-ySelectionCaret {
   position: relative;
-  border-left: 2px solid black;
+  border-left: 1px solid black;
   margin-left: -1px;
   margin-right: -1px;
   box-sizing: border-box;
 }
 
-.jp-CodeMirrorEditor .remote-caret > div {
+.jp-CodeMirrorEditor .cm-ySelectionCaret > .cm-ySelectionInfo {
   white-space: nowrap;
   position: absolute;
   top: -1.15em;
   padding-bottom: 0.05em;
-  left: -2px;
+  left: -1px;
   font-size: 0.95em;
-  background-color: rgb(250, 129, 0);
   font-family: var(--jp-ui-font-family);
   font-weight: bold;
   line-height: normal;
@@ -261,19 +133,16 @@
   color: white;
   padding-left: 2px;
   padding-right: 2px;
-  z-index: 3;
+  z-index: 101;
   transition: opacity 0.3s ease-in-out;
 }
 
-.jp-CodeMirrorEditor .remote-caret.hide-name > div {
+.jp-CodeMirrorEditor .cm-ySelectionInfo {
   transition-delay: 0.7s;
   opacity: 0;
 }
 
-/* Use `div[style]` as more specific selector on 3.4.x to reduce the impact of
- * Chromium style invalidation strategy on performance when many divs are present.
- */
-.jp-CodeMirrorEditor .remote-caret:hover > div[style] {
+.jp-CodeMirrorEditor .cm-ySelectionCaret:hover > .cm-ySelectionInfo {
   opacity: 1;
   transition-delay: 0s;
 }
diff --git a/packages/codemirror/style/index.css b/packages/codemirror/style/index.css
index f4413fa8af74..416b64aafa2e 100644
--- a/packages/codemirror/style/index.css
+++ b/packages/codemirror/style/index.css
@@ -4,12 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~codemirror/lib/codemirror.css');
-@import url('~codemirror/addon/dialog/dialog.css');
-@import url('~codemirror/addon/fold/foldgutter.css');
-
+@import url('~@jupyterlab/documentsearch/style/index.css');
 @import url('./base.css');
diff --git a/packages/codemirror/style/index.js b/packages/codemirror/style/index.js
index 5557e3f6e8e7..bf7bb9519186 100644
--- a/packages/codemirror/style/index.js
+++ b/packages/codemirror/style/index.js
@@ -4,12 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@lumino/widgets/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/statusbar/style/index.js';
-import 'codemirror/lib/codemirror.css';
-import 'codemirror/addon/dialog/dialog.css';
-import 'codemirror/addon/fold/foldgutter.css';
+import '@jupyterlab/documentsearch/style/index.js';
 
 import './base.css';
diff --git a/packages/codemirror/test/editor.spec.ts b/packages/codemirror/test/editor.spec.ts
index cdef16755b7d..57ff4612f39d 100644
--- a/packages/codemirror/test/editor.spec.ts
+++ b/packages/codemirror/test/editor.spec.ts
@@ -1,16 +1,23 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { YFile } from '@jupyter/ydoc';
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import {
+  CodeMirrorEditor,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
+import { sleep } from '@jupyterlab/testutils';
 import { generate, simulate } from 'simulate-event';
 
 const UP_ARROW = 38;
 
 const DOWN_ARROW = 40;
 
-const ENTER = 13;
-
 class LogFileEditor extends CodeMirrorEditor {
   methods: string[] = [];
 
@@ -26,12 +33,38 @@ describe('CodeMirrorEditor', () => {
   let host: HTMLElement;
   let model: CodeEditor.IModel;
   const TEXT = new Array(100).join('foo bar baz\n');
+  let languages: IEditorLanguageRegistry;
+  let extensionsRegistry: IEditorExtensionRegistry;
+
+  beforeAll(async () => {
+    languages = new EditorLanguageRegistry();
+    extensionsRegistry = new EditorExtensionRegistry();
+    EditorExtensionRegistry.getDefaultExtensions()
+      .filter(ext => ['lineNumbers', 'lineWrap', 'readOnly'].includes(ext.name))
+      .forEach(ext => {
+        extensionsRegistry.addExtension(ext);
+      });
+    for (const language of EditorLanguageRegistry.getDefaultLanguages().filter(
+      spec => spec.name === 'Python'
+    )) {
+      languages.addLanguage(language);
+      await languages.getLanguage(language.name);
+    }
+  });
 
   beforeEach(() => {
     host = document.createElement('div');
     document.body.appendChild(host);
-    model = new CodeEditor.Model();
-    editor = new LogFileEditor({ host, model });
+    const sharedModel = new YFile();
+    model = new CodeEditor.Model({ sharedModel });
+    editor = new LogFileEditor({
+      extensionsRegistry,
+      host,
+      model,
+      languages,
+      // Binding between the editor and the Yjs model
+      extensions: [ybinding({ ytext: sharedModel.ysource })]
+    });
   });
 
   afterEach(() => {
@@ -54,7 +87,7 @@ describe('CodeMirrorEditor', () => {
       };
       editor.edgeRequested.connect(listener);
       expect(edge).toBeNull();
-      editor.editor.triggerOnKeyDown(event);
+      editor.editor.contentDOM.dispatchEvent(event);
       expect(edge).toBe('top');
     });
 
@@ -66,7 +99,7 @@ describe('CodeMirrorEditor', () => {
       };
       editor.edgeRequested.connect(listener);
       expect(edge).toBeNull();
-      editor.editor.triggerOnKeyDown(event);
+      editor.editor.contentDOM.dispatchEvent(event);
       expect(edge).toBe('bottom');
     });
   });
@@ -75,56 +108,39 @@ describe('CodeMirrorEditor', () => {
     it('should be the unique id of the editor', () => {
       expect(editor.uuid).toBeTruthy();
       const uuid = 'foo';
-      editor = new LogFileEditor({ model, host, uuid });
+      editor = new LogFileEditor({
+        extensionsRegistry,
+        model,
+        host,
+        uuid,
+        languages
+      });
       expect(editor.uuid).toBe('foo');
     });
   });
 
-  describe('#selectionStyle', () => {
-    it('should be the selection style of the editor', () => {
-      expect(editor.selectionStyle).toEqual(CodeEditor.defaultSelectionStyle);
-    });
-
-    it('should be settable', () => {
-      const style = {
-        className: 'foo',
-        displayName: 'bar',
-        color: 'black'
-      };
-      editor.selectionStyle = style;
-      expect(editor.selectionStyle).toEqual(style);
-    });
-  });
-
   describe('#editor', () => {
     it('should be the codemirror editor wrapped by the editor', () => {
       const cm = editor.editor;
-      expect(cm.getDoc()).toBe(editor.doc);
-    });
-  });
-
-  describe('#doc', () => {
-    it('should be the codemirror doc wrapped by the editor', () => {
-      const doc = editor.doc;
-      expect(doc.getEditor()).toBe(editor.editor);
+      expect(cm.state.doc).toBe(editor.doc);
     });
   });
 
   describe('#lineCount', () => {
     it('should get the number of lines in the editor', () => {
       expect(editor.lineCount).toBe(1);
-      editor.model.value.text = 'foo\nbar\nbaz';
+      editor.model.sharedModel.setSource('foo\nbar\nbaz');
       expect(editor.lineCount).toBe(3);
     });
   });
 
   describe('#getOption()', () => {
     it('should get whether line numbers should be shown', () => {
-      expect(editor.getOption('lineNumbers')).toBe(false);
+      expect(editor.getOption('lineNumbers')).toBe(true);
     });
 
     it('should get whether horizontally scrolling should be used', () => {
-      expect(editor.getOption('lineWrap')).toBe('on');
+      expect(editor.getOption('lineWrap')).toBe(true);
     });
 
     it('should get whether the editor is readonly', () => {
@@ -134,13 +150,13 @@ describe('CodeMirrorEditor', () => {
 
   describe('#setOption()', () => {
     it('should set whether line numbers should be shown', () => {
-      editor.setOption('lineNumbers', true);
-      expect(editor.getOption('lineNumbers')).toBe(true);
+      editor.setOption('lineNumbers', false);
+      expect(editor.getOption('lineNumbers')).toBe(false);
     });
 
     it('should set whether horizontally scrolling should be used', () => {
-      editor.setOption('lineWrap', 'off');
-      expect(editor.getOption('lineWrap')).toBe('off');
+      editor.setOption('lineWrap', false);
+      expect(editor.getOption('lineWrap')).toBe(false);
     });
 
     it('should set whether the editor is readonly', () => {
@@ -187,7 +203,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#getLine()', () => {
     it('should get a line of text', () => {
-      model.value.text = 'foo\nbar';
+      model.sharedModel.setSource('foo\nbar');
       expect(editor.getLine(0)).toBe('foo');
       expect(editor.getLine(1)).toBe('bar');
       expect(editor.getLine(2)).toBeUndefined();
@@ -196,7 +212,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#getOffsetAt()', () => {
     it('should get the offset for a given position', () => {
-      model.value.text = 'foo\nbar';
+      model.sharedModel.setSource('foo\nbar');
       let pos = {
         column: 2,
         line: 1
@@ -206,45 +222,47 @@ describe('CodeMirrorEditor', () => {
         column: 2,
         line: 5
       };
-      expect(editor.getOffsetAt(pos)).toBe(7);
+      expect(() => {
+        editor.getOffsetAt(pos);
+      }).toThrow(RangeError);
     });
   });
 
   describe('#getPositionAt()', () => {
     it('should get the position for a given offset', () => {
-      model.value.text = 'foo\nbar';
+      model.sharedModel.setSource('foo\nbar');
       let pos = editor.getPositionAt(6);
       expect(pos.column).toBe(2);
       expect(pos.line).toBe(1);
-      pos = editor.getPositionAt(101);
-      expect(pos.column).toBe(3);
-      expect(pos.line).toBe(1);
+      expect(() => {
+        pos = editor.getPositionAt(101);
+      }).toThrow(RangeError);
     });
   });
 
   describe('#undo()', () => {
     it('should undo one edit', () => {
-      model.value.text = 'foo';
+      model.sharedModel.setSource('foo');
       editor.undo();
-      expect(model.value.text).toBe('');
+      expect(model.sharedModel.getSource()).toBe('');
     });
   });
 
   describe('#redo()', () => {
     it('should redo one undone edit', () => {
-      model.value.text = 'foo';
+      model.sharedModel.setSource('foo');
       editor.undo();
       editor.redo();
-      expect(model.value.text).toBe('foo');
+      expect(model.sharedModel.getSource()).toBe('foo');
     });
   });
 
   describe('#clearHistory()', () => {
     it('should clear the undo history', () => {
-      model.value.text = 'foo';
+      model.sharedModel.setSource('foo');
       editor.clearHistory();
       editor.undo();
-      expect(model.value.text).toBe('foo');
+      expect(model.sharedModel.getSource()).toBe('foo');
     });
   });
 
@@ -276,59 +294,24 @@ describe('CodeMirrorEditor', () => {
   describe('#handleEvent', () => {
     describe('focus', () => {
       it('should add the focus class to the host', () => {
-        simulate(editor.editor.getInputField(), 'focus');
+        simulate(editor.editor.contentDOM, 'focus');
         expect(host.classList.contains('jp-mod-focused')).toBe(true);
       });
     });
 
     describe('blur', () => {
       it('should remove the focus class from the host', () => {
-        simulate(editor.editor.getInputField(), 'focus');
+        simulate(editor.editor.contentDOM, 'focus');
         expect(host.classList.contains('jp-mod-focused')).toBe(true);
-        simulate(editor.editor.getInputField(), 'blur');
+        simulate(editor.editor.contentDOM, 'blur');
         expect(host.classList.contains('jp-mod-focused')).toBe(false);
       });
     });
   });
 
-  describe('#refresh()', () => {
-    it('should repaint the editor', () => {
-      editor.refresh();
-      expect(editor).toBeTruthy();
-    });
-  });
-
-  describe('#addKeydownHandler()', () => {
-    it('should add a keydown handler to the editor', () => {
-      let called = 0;
-      const handler = () => {
-        called++;
-        return true;
-      };
-      const disposable = editor.addKeydownHandler(handler);
-      let evt = generate('keydown', { keyCode: ENTER });
-      editor.editor.triggerOnKeyDown(evt);
-      expect(called).toBe(1);
-      disposable.dispose();
-      expect(disposable.isDisposed).toBe(true);
-
-      evt = generate('keydown', { keyCode: ENTER });
-      editor.editor.triggerOnKeyDown(evt);
-      expect(called).toBe(1);
-    });
-  });
-
-  describe('#setSize()', () => {
-    it('should set the size of the editor in pixels', () => {
-      editor.setSize({ width: 100, height: 100 });
-      editor.setSize(null);
-      expect(editor).toBeTruthy();
-    });
-  });
-
   describe('#revealPosition()', () => {
     it('should reveal the given position in the editor', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       editor.revealPosition({ line: 50, column: 0 });
       expect(editor).toBeTruthy();
     });
@@ -336,7 +319,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#revealSelection()', () => {
     it('should reveal the given selection in the editor', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       const start = { line: 50, column: 0 };
       const end = { line: 52, column: 0 };
       editor.setSelection({ start, end });
@@ -345,31 +328,9 @@ describe('CodeMirrorEditor', () => {
     });
   });
 
-  describe('#getCoordinateForPosition()', () => {
-    it('should get the window coordinates given a cursor position', () => {
-      model.value.text = TEXT;
-      const coord = editor.getCoordinateForPosition({ line: 10, column: 1 });
-      if (typeof process !== 'undefined') {
-        expect(coord.left).toBe(0);
-      } else {
-        expect(coord.left).toBeGreaterThan(0);
-      }
-    });
-  });
-
-  describe('#getPositionForCoordinate()', () => {
-    it('should get the window coordinates given a cursor position', () => {
-      model.value.text = TEXT;
-      const coord = editor.getCoordinateForPosition({ line: 10, column: 1 });
-      const newPos = editor.getPositionForCoordinate(coord)!;
-      expect(newPos.line).toBeTruthy();
-      expect(newPos.column).toBeTruthy();
-    });
-  });
-
   describe('#getCursorPosition()', () => {
     it('should get the primary position of the cursor', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       let pos = editor.getCursorPosition();
       expect(pos.line).toBe(0);
       expect(pos.column).toBe(0);
@@ -383,7 +344,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#setCursorPosition()', () => {
     it('should set the primary position of the cursor', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       editor.setCursorPosition({ line: 12, column: 3 });
       const pos = editor.getCursorPosition();
       expect(pos.line).toBe(12);
@@ -401,7 +362,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#setSelection()', () => {
     it('should set the primary selection of the editor', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       const start = { line: 50, column: 0 };
       const end = { line: 52, column: 0 };
       editor.setSelection({ start, end });
@@ -410,7 +371,7 @@ describe('CodeMirrorEditor', () => {
     });
 
     it('should remove any secondary cursors', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       const range0 = {
         start: { line: 50, column: 0 },
         end: { line: 52, column: 0 }
@@ -427,7 +388,7 @@ describe('CodeMirrorEditor', () => {
 
   describe('#getSelections()', () => {
     it('should get the selections for all the cursors', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       const range0 = {
         start: { line: 50, column: 0 },
         end: { line: 52, column: 0 }
@@ -444,8 +405,8 @@ describe('CodeMirrorEditor', () => {
   });
 
   describe('#setSelections()', () => {
-    it('should set the selections for all the cursors', () => {
-      model.value.text = TEXT;
+    it('should set the selections for all the cursors', async () => {
+      model.sharedModel.setSource(TEXT);
       const range0 = {
         start: { line: 50, column: 0 },
         end: { line: 52, column: 0 }
@@ -461,7 +422,7 @@ describe('CodeMirrorEditor', () => {
     });
 
     it('should set a default selection for an empty array', () => {
-      model.value.text = TEXT;
+      model.sharedModel.setSource(TEXT);
       editor.setSelections([]);
       const selection = editor.getSelection();
       expect(selection.start.line).toBe(0);
@@ -473,8 +434,98 @@ describe('CodeMirrorEditor', () => {
     it('should run when there is a keydown event on the editor', () => {
       const event = generate('keydown', { keyCode: UP_ARROW });
       expect(editor.methods).toEqual(expect.not.arrayContaining(['onKeydown']));
-      editor.editor.triggerOnKeyDown(event);
+      editor.editor.contentDOM.dispatchEvent(event);
       expect(editor.methods).toEqual(expect.arrayContaining(['onKeydown']));
     });
   });
+
+  describe('#getTokenAt()', () => {
+    it('should return innermost token', async () => {
+      model.mimeType = 'text/x-python';
+      model.sharedModel.setSource('foo = "a"\nbar = 1');
+      // Needed to have the sharedModel content transferred to the editor document
+      await sleep(0.01);
+      expect(editor.getTokenAt(1)).toStrictEqual({
+        offset: 0,
+        type: 'VariableName',
+        value: 'foo'
+      });
+
+      expect(editor.getTokenAt(11)).toStrictEqual({
+        offset: 10,
+        type: 'VariableName',
+        value: 'bar'
+      });
+    });
+    it('should return preceeding token when it is the last token', async () => {
+      model.mimeType = 'text/x-python';
+      model.sharedModel.setSource('import');
+      // Needed to have the sharedModel content transferred to the editor document
+      await sleep(0.01);
+      expect(editor.getTokenAt(6)).toStrictEqual({
+        type: 'import',
+        offset: 0,
+        value: 'import'
+      });
+    });
+  });
+
+  describe('#getTokens()', () => {
+    it('should get a list of tokens', async () => {
+      model.mimeType = 'text/x-python';
+      model.sharedModel.setSource('foo = "a"\nbar = 1');
+      // Needed to have the sharedModel content transferred to the editor document
+      await sleep(0.01);
+      expect(editor.getTokens()).toStrictEqual([
+        {
+          offset: 0,
+          type: 'VariableName',
+          value: 'foo'
+        },
+        {
+          offset: 4,
+          type: 'AssignOp',
+          value: '='
+        },
+        {
+          offset: 6,
+          type: 'String',
+          value: '"a"'
+        },
+        {
+          offset: 10,
+          type: 'VariableName',
+          value: 'bar'
+        },
+        {
+          offset: 14,
+          type: 'AssignOp',
+          value: '='
+        },
+        {
+          offset: 16,
+          type: 'Number',
+          value: '1'
+        }
+      ]);
+    });
+  });
+
+  describe('#replaceSelection()', () => {
+    it('should set text in empty editor', () => {
+      model.sharedModel.setSource('');
+      editor.replaceSelection('text');
+      expect(model.sharedModel.source).toBe('text');
+      expect(editor.getSelection().end.column).toBe(4);
+    });
+
+    it('should replace from start to end of selection', () => {
+      model.sharedModel.setSource('axxc');
+      const start = { line: 0, column: 1 };
+      const end = { line: 0, column: 3 };
+      editor.setSelection({ start, end });
+      editor.replaceSelection('b');
+      expect(model.sharedModel.source).toBe('abc');
+    });
+  });
 });
diff --git a/packages/codemirror/test/extension.spec.ts b/packages/codemirror/test/extension.spec.ts
new file mode 100644
index 000000000000..c3c60eaeaf83
--- /dev/null
+++ b/packages/codemirror/test/extension.spec.ts
@@ -0,0 +1,394 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import {
+  EditorExtensionRegistry,
+  ExtensionsHandler
+} from '@jupyterlab/codemirror';
+import { signalToPromise } from '@jupyterlab/coreutils';
+
+describe('@jupyterlab/codemirror', () => {
+  describe('EditorExtensionRegistry', () => {
+    function createRegistry(): EditorExtensionRegistry {
+      const extensions = new EditorExtensionRegistry();
+
+      EditorExtensionRegistry.getDefaultExtensions()
+        .filter(extension =>
+          [
+            // User configurable extension
+            'lineNumbers',
+            // Programmatic configurable extension
+            'readOnly'
+          ].includes(extension.name)
+        )
+        .forEach(extension => {
+          extensions.addExtension(extension);
+        });
+
+      extensions.addExtension({
+        name: 'immutable',
+        factory: () => EditorExtensionRegistry.createImmutableExtension([])
+      });
+      return extensions;
+    }
+
+    describe('baseConfiguration', () => {
+      it('should return the default configuration by default', () => {
+        const registry = createRegistry();
+
+        expect(registry.baseConfiguration).toEqual({
+          lineNumbers: true,
+          readOnly: false
+        });
+      });
+
+      it('should override the default configuration', () => {
+        const registry = createRegistry();
+        registry.baseConfiguration = { readOnly: true };
+        expect(registry.baseConfiguration).toEqual({
+          lineNumbers: true,
+          readOnly: true
+        });
+      });
+    });
+
+    describe('defaultConfiguration', () => {
+      it('should return the default configuration', () => {
+        const registry = createRegistry();
+
+        expect(registry.defaultConfiguration).toEqual({
+          lineNumbers: true,
+          readOnly: false
+        });
+      });
+    });
+
+    describe('settingsSchema', () => {
+      it('should return the configurable json schema', () => {
+        const registry = createRegistry();
+
+        expect(registry.settingsSchema).toEqual({
+          lineNumbers: {
+            type: 'boolean',
+            title: 'Line Numbers',
+            default: true
+          }
+        });
+      });
+
+      it('should have schema default if defined', () => {
+        const registry = new EditorExtensionRegistry();
+        registry.addExtension({
+          name: 'dummy',
+          default: true,
+          factory: () =>
+            EditorExtensionRegistry.createConfigurableExtension(v => []),
+          schema: {
+            type: 'boolean',
+            default: false
+          }
+        });
+
+        expect(registry.settingsSchema).toEqual({
+          dummy: {
+            type: 'boolean',
+            default: false
+          }
+        });
+      });
+
+      it('should have null as default if undefined', () => {
+        const registry = new EditorExtensionRegistry();
+        registry.addExtension({
+          name: 'dummy',
+          factory: () =>
+            EditorExtensionRegistry.createConfigurableExtension(v => []),
+          schema: {
+            type: ['string', 'null']
+          }
+        });
+
+        expect(registry.settingsSchema).toEqual({
+          dummy: {
+            type: ['string', 'null'],
+            default: null
+          }
+        });
+      });
+    });
+
+    describe('#addExtension', () => {
+      it('should add a configurable extension factory', () => {
+        const registry = new EditorExtensionRegistry();
+        registry.addExtension({
+          name: 'dummy',
+          default: true,
+          factory: () =>
+            EditorExtensionRegistry.createConfigurableExtension(v => [])
+        });
+
+        expect(
+          registry
+            .createNew({ inline: false, model: {} as CodeEditor.IModel })
+            .hasOption('dummy')
+        ).toEqual(true);
+      });
+
+      it('should add an immutable extension factory', () => {
+        const registry = new EditorExtensionRegistry();
+        registry.addExtension({
+          name: 'dummy',
+          factory: () =>
+            EditorExtensionRegistry.createConfigurableExtension(v => [])
+        });
+
+        const handler = registry.createNew({
+          inline: false,
+          model: {} as CodeEditor.IModel
+        });
+        expect(handler.hasOption('dummy')).toEqual(false);
+        expect(handler.getInitialExtensions()).toHaveLength(1);
+      });
+
+      it('should raise if an extension with the same name already exists', () => {
+        const registry = new EditorExtensionRegistry();
+        registry.addExtension({
+          name: 'dummy',
+          factory: () =>
+            EditorExtensionRegistry.createConfigurableExtension(v => [])
+        });
+
+        expect(() => {
+          registry.addExtension({
+            name: 'dummy',
+            factory: () =>
+              EditorExtensionRegistry.createConfigurableExtension(v => [])
+          });
+        }).toThrow();
+      });
+    });
+
+    describe('#createNew', () => {
+      it('should create a extension handler', () => {
+        const registry = createRegistry();
+
+        const handler = registry.createNew({
+          inline: false,
+          model: {} as CodeEditor.IModel
+        });
+
+        expect(handler.getOption('lineNumbers')).toEqual(true);
+        expect(handler.getOption('readOnly')).toEqual(false);
+        expect(handler.hasOption('immutable')).toEqual(false);
+      });
+
+      it('should create a extension handler with custom configuration', () => {
+        const registry = createRegistry();
+        registry.baseConfiguration = {
+          lineNumbers: true,
+          readOnly: true
+        };
+        const handler = registry.createNew({
+          inline: false,
+          model: {} as CodeEditor.IModel,
+          config: {
+            lineNumbers: false
+          }
+        });
+
+        expect(handler.getOption('lineNumbers')).toEqual(false);
+        expect(handler.getOption('readOnly')).toEqual(true);
+        expect(handler.hasOption('immutable')).toEqual(false);
+      });
+    });
+  });
+
+  describe('ExtensionsHandler', () => {
+    function createHandler(config?: Record<string, any>) {
+      return new ExtensionsHandler({
+        baseConfiguration: {
+          lineNumbers: true,
+          readOnly: false
+        },
+        config,
+        defaultExtensions: [
+          [
+            'lineNumbers',
+            EditorExtensionRegistry.createConditionalExtension([])
+          ],
+          ['readOnly', EditorExtensionRegistry.createConditionalExtension([])],
+          ['immutable', EditorExtensionRegistry.createImmutableExtension([])]
+        ]
+      });
+    }
+    describe('#constructor', () => {
+      it('should accept no options', () => {
+        const handler = new ExtensionsHandler();
+
+        expect(handler).toBeInstanceOf(ExtensionsHandler);
+      });
+
+      it('should accept options', () => {
+        const handler = createHandler({
+          lineNumbers: false
+        });
+
+        expect(handler.getOption('lineNumbers')).toEqual(false);
+        expect(handler.getOption('readOnly')).toEqual(false);
+        expect(handler.hasOption('immutable')).toEqual(false);
+
+        expect(handler.getInitialExtensions()).toHaveLength(3);
+      });
+    });
+
+    describe('#configChanged', () => {
+      it('should be emitted when an option change', async () => {
+        const handler = createHandler();
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setOption('lineNumbers', false);
+
+        const [_, args] = await configChanged;
+        expect(args).toEqual({ lineNumbers: false });
+      });
+      it('should be emitted when some base options change', async () => {
+        const handler = createHandler();
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setBaseOptions({ lineNumbers: false, readOnly: true });
+        const [_, args] = await configChanged;
+        expect(args).toEqual({
+          lineNumbers: false,
+          readOnly: true
+        });
+      });
+      it('should be emitted when some options change', async () => {
+        const handler = createHandler();
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setOptions({ lineNumbers: false, readOnly: true });
+        const [_, args] = await configChanged;
+        expect(args).toEqual({
+          lineNumbers: false,
+          readOnly: true
+        });
+      });
+    });
+
+    describe('#disposed', () => {
+      it('should be emitted when the handler is disposed', async () => {
+        const handler = new ExtensionsHandler();
+
+        const disposed = signalToPromise(handler.disposed);
+        handler.dispose();
+        await disposed;
+
+        expect(handler.isDisposed).toEqual(true);
+      });
+    });
+
+    describe('#isDisposed', () => {
+      it('should be false by default', () => {
+        const handler = new ExtensionsHandler();
+
+        expect(handler.isDisposed).toEqual(false);
+      });
+
+      it('should be true when the handler is disposed', async () => {
+        const handler = new ExtensionsHandler();
+
+        const disposed = signalToPromise(handler.disposed);
+        handler.dispose();
+        await disposed;
+
+        expect(handler.isDisposed).toEqual(true);
+      });
+    });
+
+    describe('#dispose', () => {
+      it('should dispose the resources of the handler', () => {
+        const handler = new ExtensionsHandler();
+        handler.dispose();
+        expect(handler.isDisposed).toEqual(true);
+      });
+    });
+
+    describe('#getOption', () => {
+      it('should return the value of an option', () => {
+        const handler = createHandler();
+
+        expect(handler.getOption('lineNumbers')).toEqual(true);
+      });
+
+      it('should return undefined if the option does not exist', () => {
+        const handler = new ExtensionsHandler();
+
+        expect(handler.getOption('lineNumbers')).toBeUndefined();
+      });
+    });
+
+    describe('#hasOption', () => {
+      it('should return true if an option exists', () => {
+        const handler = createHandler();
+
+        expect(handler.hasOption('lineNumbers')).toEqual(true);
+      });
+
+      it('should return false if the option does not exist', () => {
+        const handler = new ExtensionsHandler();
+
+        expect(handler.hasOption('lineNumbers')).toEqual(false);
+      });
+    });
+
+    describe('#setOption', () => {
+      it('should set an option and emit a signal', async () => {
+        const handler = createHandler();
+
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setOption('lineNumbers', false);
+
+        const [_, args] = await configChanged;
+        expect(args).toEqual({ lineNumbers: false });
+      });
+    });
+
+    describe('#setBaseOptions', () => {
+      it('should set the base options and emit a signal', async () => {
+        const handler = createHandler();
+
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setBaseOptions({ lineNumbers: false });
+
+        const [_, args] = await configChanged;
+        expect(args).toEqual({
+          lineNumbers: false,
+          // The signal will emit removed option with `undefined` value
+          readOnly: undefined
+        });
+      });
+    });
+
+    describe('#setOptions', () => {
+      it('should set the options and emit a signal', async () => {
+        const handler = createHandler({ readOnly: true });
+
+        const configChanged = signalToPromise(handler.configChanged);
+        handler.setOptions({ lineNumbers: false });
+
+        const [_, args] = await configChanged;
+        expect(args).toEqual({
+          lineNumbers: false,
+          // The signal will emit removed option with base configuration value
+          readOnly: false
+        });
+      });
+    });
+
+    describe('#getInitialExtensions', () => {
+      it('should return the list of initial editor extensions', () => {
+        const handler = createHandler();
+
+        expect(handler.getInitialExtensions()).toHaveLength(3);
+      });
+    });
+  });
+});
diff --git a/packages/codemirror/test/factory.spec.ts b/packages/codemirror/test/factory.spec.ts
index 208f6ecc9aee..36063364a85b 100644
--- a/packages/codemirror/test/factory.spec.ts
+++ b/packages/codemirror/test/factory.spec.ts
@@ -4,30 +4,40 @@
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import {
   CodeMirrorEditor,
-  CodeMirrorEditorFactory
+  CodeMirrorEditorFactory,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  IEditorExtensionRegistry
 } from '@jupyterlab/codemirror';
-
-class ExposeCodeMirrorEditorFactory extends CodeMirrorEditorFactory {
-  public inlineCodeMirrorConfig: CodeMirrorEditor.IConfig;
-  public documentCodeMirrorConfig: CodeMirrorEditor.IConfig;
-}
+import { YFile } from '@jupyter/ydoc';
 
 describe('CodeMirrorEditorFactory', () => {
   let host: HTMLElement;
   let model: CodeEditor.IModel;
+  let extensions: IEditorExtensionRegistry;
 
-  const options: Partial<CodeMirrorEditor.IConfig> = {
+  const defaults: Record<string, any> = {
     lineNumbers: false,
-    lineWrap: 'on',
-    extraKeys: {
-      'Ctrl-Tab': 'indentAuto'
-    }
+    lineWrap: true
   };
 
   beforeEach(() => {
     host = document.createElement('div');
     document.body.appendChild(host);
-    model = new CodeEditor.Model();
+    extensions = new EditorExtensionRegistry();
+    extensions.addExtension({
+      name: 'lineNumbers',
+      default: true,
+      factory: () => EditorExtensionRegistry.createImmutableExtension([])
+    });
+    extensions.addExtension({
+      name: 'lineWrap',
+      default: false,
+      factory: () => EditorExtensionRegistry.createImmutableExtension([])
+    });
+    model = new CodeEditor.Model({
+      sharedModel: new YFile()
+    });
   });
 
   afterEach(() => {
@@ -41,14 +51,12 @@ describe('CodeMirrorEditorFactory', () => {
     });
 
     it('should create a CodeMirrorEditorFactory with options', () => {
-      const factory = new ExposeCodeMirrorEditorFactory(options);
+      const languages = new EditorLanguageRegistry();
+      const findBest = jest.spyOn(languages, 'findBest');
+      const factory = new CodeMirrorEditorFactory({ languages });
       expect(factory).toBeInstanceOf(CodeMirrorEditorFactory);
-      expect(factory.inlineCodeMirrorConfig.extraKeys).toEqual(
-        options.extraKeys
-      );
-      expect(factory.documentCodeMirrorConfig.extraKeys).toEqual(
-        options.extraKeys
-      );
+      factory.newInlineEditor({ host, model });
+      expect(findBest).toHaveBeenCalled();
     });
   });
 
@@ -61,15 +69,15 @@ describe('CodeMirrorEditorFactory', () => {
     });
 
     it('should create a new editor with given options', () => {
-      const factory = new CodeMirrorEditorFactory(options);
+      const factory = new CodeMirrorEditorFactory();
       const editor = factory.newInlineEditor({
         host,
         model
       }) as CodeMirrorEditor;
       expect(editor).toBeInstanceOf(CodeMirrorEditor);
-      for (const key in Object.keys(options)) {
-        const option = key as keyof CodeMirrorEditor.IConfig;
-        expect(editor.getOption(option)).toBe(options[option]);
+      for (const key in Object.keys(defaults)) {
+        const option = key as keyof Record<string, any>;
+        expect(editor.getOption(option)).toBe(defaults[option]);
       }
       editor.dispose();
     });
@@ -84,15 +92,15 @@ describe('CodeMirrorEditorFactory', () => {
     });
 
     it('should create a new editor with given options', () => {
-      const factory = new CodeMirrorEditorFactory(options);
+      const factory = new CodeMirrorEditorFactory({ extensions });
       const editor = factory.newDocumentEditor({
         host,
-        model
+        model,
+        config: defaults
       }) as CodeMirrorEditor;
       expect(editor).toBeInstanceOf(CodeMirrorEditor);
-      for (const key in Object.keys(options)) {
-        const option = key as keyof CodeMirrorEditor.IConfig;
-        expect(editor.getOption(option)).toBe(options[option]);
+      for (const key in Object.keys(defaults)) {
+        expect(editor.getOption(key)).toBe(defaults[key]);
       }
       editor.dispose();
     });
diff --git a/packages/codemirror/test/foo.d.ts b/packages/codemirror/test/foo.d.ts
new file mode 100644
index 000000000000..4218be8a2111
--- /dev/null
+++ b/packages/codemirror/test/foo.d.ts
@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { LRParser } from '@lezer/lr';
+
+export declare const parser: LRParser;
diff --git a/packages/codemirror/test/foo.grammar b/packages/codemirror/test/foo.grammar
new file mode 100644
index 000000000000..c8aca91d9450
--- /dev/null
+++ b/packages/codemirror/test/foo.grammar
@@ -0,0 +1,26 @@
+@top Program { expression* }
+
+@skip { space | LineComment }
+
+expression {
+  Identifier |
+  String |
+  Boolean |
+  Application { "(" expression* ")" }
+}
+
+@tokens {
+  Identifier { $[a-zA-Z_\-0-9]+ }
+
+  String { '"' (!["\\] | "\\" _)* '"' }
+
+  Boolean { "#t" | "#f" }
+
+  LineComment { ";" ![\n]* }
+
+  space { $[ \t\n\r]+ }
+
+  "(" ")"
+}
+
+@detectDelim
diff --git a/packages/codemirror/test/foolanguage.ts b/packages/codemirror/test/foolanguage.ts
new file mode 100644
index 000000000000..6d517e6329de
--- /dev/null
+++ b/packages/codemirror/test/foolanguage.ts
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/*
+ * New mode example using https://github.com/codemirror/lang-example
+ * Licensed under MIT License, Copyright (C) 2021 by Marijn Haverbeke <marijnh@gmail.com> and others
+ */
+
+import {
+  delimitedIndent,
+  foldInside,
+  foldNodeProp,
+  indentNodeProp,
+  LanguageSupport,
+  LRLanguage
+} from '@codemirror/language';
+import { styleTags, tags as t } from '@lezer/highlight';
+import { parser } from './foo';
+
+/**
+ * Configure the parser
+ */
+let parserWithMetadata = parser.configure({
+  props: [
+    styleTags({
+      Identifier: t.variableName,
+      Boolean: t.bool,
+      String: t.string,
+      LineComment: t.lineComment,
+      '( )': t.paren
+    }),
+    indentNodeProp.add({
+      Application: delimitedIndent({ closing: ')', align: false })
+    }),
+    foldNodeProp.add({
+      Application: foldInside
+    })
+  ]
+});
+
+/**
+ * Define the new language
+ */
+const fooLanguage = LRLanguage.define({
+  parser: parserWithMetadata,
+  languageData: {
+    commentTokens: { line: ';' }
+  }
+});
+
+/**
+ * Instantiate the language support for foo.
+ *
+ * @returns Foo language
+ */
+export function foo() {
+  return new LanguageSupport(fooLanguage);
+}
diff --git a/packages/codemirror/test/language.spec.ts b/packages/codemirror/test/language.spec.ts
new file mode 100644
index 000000000000..c38bcf9f84a9
--- /dev/null
+++ b/packages/codemirror/test/language.spec.ts
@@ -0,0 +1,68 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { EditorLanguageRegistry } from '@jupyterlab/codemirror';
+
+import { foo } from './foolanguage';
+
+describe('@jupyterlab/codemirror', () => {
+  describe('EditorLanguageRegistry', () => {
+    let languages: EditorLanguageRegistry;
+
+    beforeEach(() => {
+      languages = new EditorLanguageRegistry();
+      languages.addLanguage({
+        name: 'foo',
+        mime: 'text/foo',
+        load: () => Promise.resolve(foo())
+      });
+    });
+
+    describe('#getLanguage', () => {
+      it('should get a non-empty list of spec', () => {
+        const specs = languages.getLanguages();
+        expect(specs.length).toBeTruthy();
+      });
+
+      it('should load a defined spec', async () => {
+        const spec = (await languages.getLanguage('text/foo'))!;
+        expect(spec.name).toBe('foo');
+      });
+
+      it('should load a bundled spec', async () => {
+        for (const language of EditorLanguageRegistry.getDefaultLanguages().filter(
+          spec => spec.name === 'JSON'
+        )) {
+          languages.addLanguage(language);
+        }
+        const spec = (await languages.getLanguage('application/json'))!;
+        expect(spec.name).toBe('JSON');
+      });
+
+      it('should default to null', async () => {
+        const spec = (await languages.getLanguage('this is not a mode'))!;
+        expect(spec.name).toBe('none');
+      });
+    });
+
+    describe('#highlight', () => {
+      it('should load a defined spec', async () => {
+        const container = document.createElement('pre');
+        await languages.highlight(
+          `(defun check-login (name password) ; absolutely secure
+      (if (equal name "admin")
+        (equal password "12345")
+        #t))`,
+          languages.findBest('text/foo'),
+          container
+        );
+        expect(container.innerHTML).toEqual(
+          `<span class="ͼ19">(</span>defun check-login <span class="ͼ19">(</span>name password<span class="ͼ19">)</span> <span class="ͼ11">; absolutely secure</span>
+      <span class="ͼ19">(</span>if <span class="ͼ19">(</span>equal name <span class="ͼ12">"admin"</span><span class="ͼ19">)</span>
+        <span class="ͼ19">(</span>equal password <span class="ͼ12">"12345"</span><span class="ͼ19">)</span>
+        <span class="ͼ1d">#t</span><span class="ͼ19">)</span><span class="ͼ19">)</span>`
+        );
+      });
+    });
+  });
+});
diff --git a/packages/codemirror/test/mathparser.spec.ts b/packages/codemirror/test/mathparser.spec.ts
new file mode 100644
index 000000000000..ba2fd76df952
--- /dev/null
+++ b/packages/codemirror/test/mathparser.spec.ts
@@ -0,0 +1,296 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// This test utils are modified from the ones in @lezer/markdown licensed under MIT License
+// Copyright (C) 2020 by Marijn Haverbeke <marijnh@gmail.com> and others
+
+import { parseMathIPython } from '@jupyterlab/codemirror';
+import { Tree } from '@lezer/common';
+import { MarkdownParser, parser } from '@lezer/markdown';
+
+const ipythonParser = parser.configure([parseMathIPython()]);
+
+function compareTree(a: Tree, b: Tree) {
+  let curA = a.cursor(),
+    curB = b.cursor();
+  for (;;) {
+    let mismatch: string | null = null,
+      next = false;
+    if (curA.type != curB.type)
+      mismatch = `Node type mismatch (${curA.name} vs ${curB.name})`;
+    else if (curA.from != curB.from)
+      mismatch = `Start pos mismatch for ${curA.name}: ${curA.from} vs ${curB.from}`;
+    else if (curA.to != curB.to)
+      mismatch = `End pos mismatch for ${curA.name}: ${curA.to} vs ${curB.to}`;
+    else if ((next = curA.next()) != curB.next())
+      mismatch = `Tree size mismatch`;
+    if (mismatch) throw new Error(`${mismatch}\n  ${a}\n  ${b}`);
+    if (!next) break;
+  }
+}
+
+const abbrev: { [abbr: string]: string } = {
+  __proto__: null as any,
+  CB: 'CodeBlock',
+  FC: 'FencedCode',
+  Q: 'Blockquote',
+  HR: 'HorizontalRule',
+  BL: 'BulletList',
+  OL: 'OrderedList',
+  LI: 'ListItem',
+  H1: 'ATXHeading1',
+  H2: 'ATXHeading2',
+  H3: 'ATXHeading3',
+  H4: 'ATXHeading4',
+  H5: 'ATXHeading5',
+  H6: 'ATXHeading6',
+  SH1: 'SetextHeading1',
+  SH2: 'SetextHeading2',
+  HB: 'HTMLBlock',
+  PI: 'ProcessingInstructionBlock',
+  CMB: 'CommentBlock',
+  LR: 'LinkReference',
+  P: 'Paragraph',
+  Esc: 'Escape',
+  Ent: 'Entity',
+  BR: 'HardBreak',
+  Em: 'Emphasis',
+  St: 'StrongEmphasis',
+  Ln: 'Link',
+  Im: 'Image',
+  C: 'InlineCode',
+  HT: 'HTMLTag',
+  CM: 'Comment',
+  Pi: 'ProcessingInstruction',
+  h: 'HeaderMark',
+  q: 'QuoteMark',
+  l: 'ListMark',
+  L: 'LinkMark',
+  e: 'EmphasisMark',
+  c: 'CodeMark',
+  cI: 'CodeInfo',
+  cT: 'CodeText',
+  LT: 'LinkTitle',
+  LL: 'LinkLabel',
+  MaID: 'InlineMathDollar',
+  maID: 'InlineMathDollarMark',
+  MaIB: 'InlineMathBracket',
+  maIB: 'InlineMathBracketMark',
+  MaBD: 'BlockMathDollar',
+  maBD: 'BlockMathDollarMark',
+  MaBB: 'BlockMathBracket',
+  maBB: 'BlockMathBracketMark'
+};
+
+class SpecParser {
+  constructor(
+    readonly parser: MarkdownParser,
+    readonly localAbbrev?: { [name: string]: string }
+  ) {}
+
+  type(name: string) {
+    name = (this.localAbbrev && this.localAbbrev[name]) || abbrev[name] || name;
+    return this.parser.nodeSet.types.find(t => t.name == name)?.id;
+  }
+
+  parse(spec: string, specName: string) {
+    let doc = '',
+      buffer: number[] = [],
+      hasOpenedCurlyBrace = 0,
+      stack: number[] = [];
+    for (let pos = 0; pos < spec.length; pos++) {
+      let ch = spec[pos];
+      if (ch == '{') {
+        let name = /^(\w+):/.exec(spec.slice(pos + 1)),
+          tag = name && this.type(name[1]);
+        if (tag == null) {
+          if (name != null)
+            throw new Error(
+              `Invalid node opening mark at ${pos} in ${specName}`
+            );
+          // If no tag found, assume curly brace is part of the document
+          hasOpenedCurlyBrace++;
+          doc += ch;
+          continue;
+        }
+        pos += name![0].length;
+        stack.push(tag, doc.length, buffer.length);
+      } else if (ch == '}') {
+        if (!stack.length && !hasOpenedCurlyBrace)
+          throw new Error(
+            `Mismatched node close mark at ${pos} in ${specName}`
+          );
+        if (hasOpenedCurlyBrace) {
+          hasOpenedCurlyBrace--;
+          doc += ch;
+          continue;
+        }
+        let bufStart = stack.pop()!,
+          from = stack.pop()!,
+          type = stack.pop()!;
+        buffer.push(type, from, doc.length, 4 + buffer.length - bufStart);
+      } else {
+        doc += ch;
+      }
+    }
+    if (stack.length) throw new Error(`Unclosed node in ${specName}`);
+    return {
+      tree: Tree.build({
+        buffer,
+        nodeSet: this.parser.nodeSet,
+        topID: this.type('Document')!,
+        length: doc.length
+      }),
+      doc
+    };
+  }
+}
+
+const specParser = new SpecParser(ipythonParser);
+
+function test(name: string, spec: string) {
+  // eslint-disable-next-line jest/expect-expect
+  it(name, () => {
+    let { tree, doc } = specParser.parse(spec, name);
+    // Uncomment the following line if you want to display the test document
+    // console.log(doc)
+    compareTree(ipythonParser.parse(doc), tree);
+  });
+}
+
+/*
+  The test utils will reconstitue the document by removing
+  the tree node spec. Then the tree will be compared to the
+  parsing of that extracted document.
+
+  As an example, the tree
+
+  `
+ {H3:{h:###} foo}
+  {H2:{h:##} foo}
+   {H1:{h:#} foo}
+`
+
+  will produce the document
+
+  `
+ ### foo
+  ## foo
+   # foo
+`
+ */
+
+// Inline math $
+
+test(
+  'Inline math $ with no space',
+  `
+{P:{MaID:{maID:$}\\vec{F} = m \\vec{a}{maID:$}}}
+`
+);
+
+test(
+  'Inline math $ with space after start',
+  `
+{P:{MaID:{maID:$} \\vec{F} = m \\vec{a}{maID:$}}}
+`
+);
+
+test(
+  'Inline math $ with space before end',
+  `
+{P:{MaID:{maID:$}\\vec{F} = m \\vec{a} {maID:$}}}
+`
+);
+
+test(
+  'Inline math $ with spaces',
+  `
+ {P:{MaID:{maID:$} \\vec{F} = m \\vec{a} {maID:$}} }
+`
+);
+
+test(
+  'Inline math $ on multilines',
+  `
+{P:{MaID:{maID:$}\\vec{F} =
+m \\vec{a}{maID:$}}}
+`
+);
+
+test(
+  'Not math $',
+  `
+{P:Not a math dollar $}
+`
+);
+
+test(
+  'Money symbol considered as math',
+  `
+{P:Problematic case: {MaID:{maID:$}20 and {maID:$}}22}
+`
+);
+
+// Inline math \\( \\)
+
+test(
+  'Inline math \\( \\)',
+  `
+{P:{MaIB:{maIB:\\\\(}\\vec{F} = m \\vec{a}{maIB:\\\\)}}}
+`
+);
+
+test(
+  'Inline math \\( \\) on multilines',
+  `
+{P:{MaIB:{maIB:\\\\(}\\vec{F} =
+m \\vec{a}{maIB:\\\\)}}}
+`
+);
+
+// Block math $$
+
+test(
+  'Block math $$',
+  `
+{P:{MaBD:{maBD:$$}\\vec{F} = m \\vec{a}{maBD:$$}}}
+`
+);
+
+test(
+  'Block math $$ on multilines',
+  `
+{P:{MaBD:{maBD:$$}
+\\begin{aligned}
+\\dot{x} & = \\sigma(y-x) {Esc:\\\\}
+\\dot{y} & = \\rho x - y - xz {Esc:\\\\}
+\\dot{z} & = -\\beta z + xy
+\\end{aligned}
+{maBD:$$}}}
+`
+);
+
+// Block math \\[ \\]
+
+test(
+  'Block math \\[ \\]',
+  `
+{P:{MaBB:{maBB:\\\\[}\\vec{F} = m \\vec{a}{maBB:\\\\]}}}
+`
+);
+
+test(
+  'Block math \\[ \\] on multilines',
+  `
+{P:{MaBB:{maBB:\\\\[}
+\\begin{aligned}
+\\dot{x} & = \\sigma(y-x) {Esc:\\\\}
+\\dot{y} & = \\rho x - y - xz {Esc:\\\\}
+\\dot{z} & = -\\beta z + xy
+\\end{aligned}
+{maBB:\\\\]}}}
+`
+);
diff --git a/packages/codemirror/test/mimetype.spec.ts b/packages/codemirror/test/mimetype.spec.ts
new file mode 100644
index 000000000000..37085b27d999
--- /dev/null
+++ b/packages/codemirror/test/mimetype.spec.ts
@@ -0,0 +1,60 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  CodeMirrorMimeTypeService,
+  EditorLanguageRegistry
+} from '@jupyterlab/codemirror';
+
+import { foo } from './foolanguage';
+
+describe('@jupyterlab/codemirror', () => {
+  describe('CodeMirrorMimeTypeService', () => {
+    let languages: EditorLanguageRegistry;
+    let mimetypeService: CodeMirrorMimeTypeService;
+
+    beforeEach(() => {
+      languages = new EditorLanguageRegistry();
+      languages.addLanguage({
+        name: 'foo',
+        mime: 'text/foo',
+        load: () => Promise.resolve(foo())
+      });
+      mimetypeService = new CodeMirrorMimeTypeService(languages);
+    });
+
+    describe('#getMimeTypeByLanguage', () => {
+      it('should get a single MIME type for foo language', () => {
+        const mime = mimetypeService.getMimeTypeByLanguage({ name: 'foo' });
+        expect(mime).toBe('text/foo');
+      });
+
+      it('should return first applicable MIME type', async () => {
+        languages.addLanguage({
+          name: 'javascript',
+          mime: ['text/javascript', 'application/javascript'],
+          load: () => Promise.resolve(foo())
+        });
+        const mime = mimetypeService.getMimeTypeByLanguage({
+          name: 'javascript'
+        });
+        expect(mime).toBe('text/javascript');
+      });
+
+      it('should return a text/plain for unknown language', async () => {
+        const mime = mimetypeService.getMimeTypeByLanguage({ name: 'bar' });
+        expect(mime).toBe('text/plain');
+      });
+
+      it('should return a text/plain for language with empty array of MIME types', async () => {
+        languages.addLanguage({
+          name: 'bar',
+          mime: [],
+          load: () => Promise.resolve(foo())
+        });
+        const mime = mimetypeService.getMimeTypeByLanguage({ name: 'bar' });
+        expect(mime).toBe('text/plain');
+      });
+    });
+  });
+});
diff --git a/packages/codemirror/test/mode.spec.ts b/packages/codemirror/test/mode.spec.ts
deleted file mode 100644
index ba1a640bf6fa..000000000000
--- a/packages/codemirror/test/mode.spec.ts
+++ /dev/null
@@ -1,161 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-/// <reference types="../typings/codemirror/codemirror" />
-
-import { Mode } from '@jupyterlab/codemirror';
-import CodeMirror from 'codemirror';
-
-function fakeMode(name: string) {
-  return {
-    mode: name,
-    ext: [name],
-    mime: `text/${name}`,
-    name: name.toUpperCase()
-  };
-}
-
-/**
- * State names used in simple mode.
- */
-type S = 'start' | 'comment';
-
-/**
- * Tokens used in simple mode.
- * */
-enum T {
-  AM = 'atom',
-  AT = 'attribute',
-  BE = 'builtin.em',
-  BI = 'builtin',
-  BK = 'bracket',
-  CM = 'comment',
-  DF = 'def',
-  HL = 'header',
-  KW = 'keyword',
-  MT = 'meta',
-  NB = 'number',
-  OP = 'operator',
-  PC = 'punctuation',
-  PR = 'property',
-  SE = 'string.em',
-  SH = 'string.header',
-  SS = 'string.strong',
-  SSE = 'string.strong.em',
-  S2 = 'string-2',
-  ST = 'string',
-  TG = 'tag',
-  V1 = 'variable',
-  V2 = 'variable-2',
-  V3 = 'variable-3'
-}
-
-/**
- * Simple mode states from CodeMirror demo:
- * from https://codemirror.net/demo/simplemode.html
- */
-const FAKE_SIMPLE_STATES: CodeMirror.TSimpleTopState<S, T> = {
-  // The start state contains the rules that are initially used
-  start: [
-    // The regex matches the token, the token property contains the type
-    { regex: /"(?:[^\\]|\\.)*?(?:"|$)/, token: T.ST },
-    // You can match multiple tokens at once. Note that the captured
-    // groups must span the whole string in this case
-    { regex: /(function)(\s+)([a-z$][\w$]*)/, token: [T.KW, null, T.V2] },
-    // Rules are matched in the order in which they appear, so there is
-    // no ambiguity between this one and the one above
-    {
-      regex: /(?:function|var|return|if|for|while|else|do|this)\b/,
-      token: T.KW
-    },
-    { regex: /true|false|null|undefined/, token: T.AT },
-    {
-      regex: /0x[a-f\d]+|[-+]?(?:\.\d+|\d+\.?\d*)(?:e[-+]?\d+)?/i,
-      token: T.NB
-    },
-    { regex: /\/\/.*/, token: T.CM },
-    { regex: /\/(?:[^\\]|\\.)*?\//, token: T.V3 },
-    // A next property will cause the mode to move to a different state
-    { regex: /\/\*/, token: T.CM, next: T.CM },
-    { regex: /[-+\/*=<>!]+/, token: T.OP },
-    // indent and dedent properties guide autoindentation
-    { regex: /[\{\[\(]/, indent: true },
-    { regex: /[\}\]\)]/, dedent: true },
-    { regex: /[a-z$][\w$]*/, token: T.V1 },
-    // You can embed other modes with the mode property. This rule
-    // causes all code between << and >> to be highlighted with the XML
-    // mode.
-    { regex: /<</, token: T.MT, mode: { spec: 'xml', end: />>/ } }
-  ],
-  // The multi-line comment state.
-  comment: [
-    { regex: /.*?\*\//, token: T.CM, next: 'start' },
-    { regex: /.*/, token: T.CM }
-  ]
-};
-
-FAKE_SIMPLE_STATES.meta = {
-  dontIndentStates: ['comment']
-};
-
-describe('Mode', () => {
-  describe('#ensure', () => {
-    it('should load a defined spec', async () => {
-      CodeMirror.modeInfo.push(fakeMode('foo'));
-      CodeMirror.defineMode('foo', () => {
-        return {};
-      });
-      const spec = (await Mode.ensure('text/foo'))!;
-      expect(spec.name).toBe('FOO');
-    });
-
-    it('should load a bundled spec', async () => {
-      const spec = (await Mode.ensure('application/json'))!;
-      expect(spec.name).toBe('JSON');
-    });
-
-    it('should add a spec loader', async () => {
-      let called = 0;
-      let loaded = 0;
-
-      Mode.addSpecLoader(async spec => {
-        called++;
-        if (spec.mode !== 'bar') {
-          return false;
-        }
-        loaded++;
-        return true;
-      }, 42);
-
-      CodeMirror.modeInfo.push(fakeMode('bar'));
-
-      let spec = await Mode.ensure('bar');
-      expect(called).toBe(1);
-      expect(loaded).toBe(1);
-      expect(spec!.name).toBe('BAR');
-
-      spec = await Mode.ensure('python');
-      expect(called).toBe(1);
-      expect(loaded).toBe(1);
-
-      try {
-        spec = await Mode.ensure('APL');
-      } catch (err) {
-        // apparently one cannot use webpack `require` in jest
-      }
-      expect(called).toBe(2);
-      expect(loaded).toBe(1);
-    });
-
-    it('should default to plain text', async () => {
-      const spec = (await Mode.ensure('this is not a mode'))!;
-      expect(spec.name).toBe('Plain Text');
-    });
-
-    it('should create a simple mode', async () => {
-      CodeMirror.modeInfo.push(fakeMode('baz'));
-      CodeMirror.defineSimpleMode('baz', FAKE_SIMPLE_STATES);
-      const spec = (await Mode.ensure('text/baz'))!;
-      expect(spec.name).toBe('BAZ');
-    });
-  });
-});
diff --git a/packages/codemirror/test/onedarktheme.ts b/packages/codemirror/test/onedarktheme.ts
new file mode 100644
index 000000000000..33d6725e0812
--- /dev/null
+++ b/packages/codemirror/test/onedarktheme.ts
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/*
+ * New theme example using https://github.com/codemirror/theme-one-dark
+ * Licensed under MIT License, Copyright (C) 2021 by Marijn Haverbeke <marijnh@gmail.com> and others
+ */
+
+import { EditorView } from '@codemirror/view';
+import { Extension } from '@codemirror/state';
+import { HighlightStyle, syntaxHighlighting } from '@codemirror/language';
+import { tags as t } from '@lezer/highlight';
+
+// Using https://github.com/one-dark/vscode-one-dark-theme/ as reference for the colors
+
+const chalky = '#e5c07b',
+  coral = '#e06c75',
+  cyan = '#56b6c2',
+  invalid = '#ffffff',
+  ivory = '#abb2bf',
+  stone = '#7d8799', // Brightened compared to original to increase contrast
+  malibu = '#61afef',
+  sage = '#98c379',
+  whiskey = '#d19a66',
+  violet = '#c678dd',
+  darkBackground = '#21252b',
+  highlightBackground = '#2c313a',
+  background = '#282c34',
+  tooltipBackground = '#353a42',
+  selection = '#3E4451',
+  cursor = '#528bff';
+
+/// The colors used in the theme, as CSS color strings.
+export const color = {
+  chalky,
+  coral,
+  cyan,
+  invalid,
+  ivory,
+  stone,
+  malibu,
+  sage,
+  whiskey,
+  violet,
+  darkBackground,
+  highlightBackground,
+  background,
+  tooltipBackground,
+  selection,
+  cursor
+};
+
+/// The editor theme styles for One Dark.
+export const oneDarkTheme = EditorView.theme(
+  {
+    '&': {
+      color: ivory,
+      backgroundColor: background
+    },
+
+    '.cm-content': {
+      caretColor: cursor
+    },
+
+    '.cm-cursor, .cm-dropCursor': { borderLeftColor: cursor },
+    '&.cm-focused .cm-selectionBackground, .cm-selectionBackground, .cm-content ::selection':
+      { backgroundColor: selection },
+
+    '.cm-panels': { backgroundColor: darkBackground, color: ivory },
+    '.cm-panels.cm-panels-top': { borderBottom: '2px solid black' },
+    '.cm-panels.cm-panels-bottom': { borderTop: '2px solid black' },
+
+    '.cm-searchMatch': {
+      backgroundColor: '#72a1ff59',
+      outline: '1px solid #457dff'
+    },
+    '.cm-searchMatch.cm-searchMatch-selected': {
+      backgroundColor: '#6199ff2f'
+    },
+
+    '.cm-activeLine': { backgroundColor: highlightBackground },
+    '.cm-selectionMatch': { backgroundColor: '#aafe661a' },
+
+    '&.cm-focused .cm-matchingBracket, &.cm-focused .cm-nonmatchingBracket': {
+      backgroundColor: '#bad0f847',
+      outline: '1px solid #515a6b'
+    },
+
+    '.cm-gutters': {
+      backgroundColor: background,
+      color: stone,
+      border: 'none'
+    },
+
+    '.cm-activeLineGutter': {
+      backgroundColor: highlightBackground
+    },
+
+    '.cm-foldPlaceholder': {
+      backgroundColor: 'transparent',
+      border: 'none',
+      color: '#ddd'
+    },
+
+    '.cm-tooltip': {
+      border: 'none',
+      backgroundColor: tooltipBackground
+    },
+    '.cm-tooltip .cm-tooltip-arrow:before': {
+      borderTopColor: 'transparent',
+      borderBottomColor: 'transparent'
+    },
+    '.cm-tooltip .cm-tooltip-arrow:after': {
+      borderTopColor: tooltipBackground,
+      borderBottomColor: tooltipBackground
+    },
+    '.cm-tooltip-autocomplete': {
+      '& > ul > li[aria-selected]': {
+        backgroundColor: highlightBackground,
+        color: ivory
+      }
+    }
+  },
+  { dark: true }
+);
+
+/// The highlighting style for code in the One Dark theme.
+export const oneDarkHighlightStyle = HighlightStyle.define([
+  // Order matters - a rule will override the previous ones; important for example for in headings styles.
+  { tag: t.keyword, color: violet },
+  {
+    tag: [t.name, t.deleted, t.character, t.propertyName, t.macroName],
+    color: coral
+  },
+  { tag: [t.function(t.variableName), t.labelName], color: malibu },
+  { tag: [t.color, t.constant(t.name), t.standard(t.name)], color: whiskey },
+  { tag: [t.definition(t.name), t.separator], color: ivory },
+  {
+    tag: [
+      t.typeName,
+      t.className,
+      t.number,
+      t.changed,
+      t.annotation,
+      t.modifier,
+      t.self,
+      t.namespace
+    ],
+    color: chalky
+  },
+  {
+    tag: [
+      t.operator,
+      t.operatorKeyword,
+      t.url,
+      t.escape,
+      t.regexp,
+      t.link,
+      t.special(t.string)
+    ],
+    color: cyan
+  },
+  { tag: [t.meta, t.comment], color: stone },
+  { tag: t.strong, fontWeight: 'bold' },
+  { tag: t.emphasis, fontStyle: 'italic' },
+  { tag: t.strikethrough, textDecoration: 'line-through' },
+  { tag: t.link, color: stone, textDecoration: 'underline' },
+  { tag: t.heading, fontWeight: 'bold', color: coral },
+  { tag: [t.atom, t.bool, t.special(t.variableName)], color: whiskey },
+  { tag: [t.processingInstruction, t.string, t.inserted], color: sage },
+  { tag: t.invalid, color: invalid }
+]);
+
+/// Extension to enable the One Dark theme (both the editor theme and
+/// the highlight style).
+export const oneDark: Extension = [
+  oneDarkTheme,
+  syntaxHighlighting(oneDarkHighlightStyle)
+];
diff --git a/packages/codemirror/test/theme.spec.ts b/packages/codemirror/test/theme.spec.ts
new file mode 100644
index 000000000000..f8bd387b5b31
--- /dev/null
+++ b/packages/codemirror/test/theme.spec.ts
@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  EditorThemeRegistry,
+  IEditorThemeRegistry
+} from '@jupyterlab/codemirror';
+import { oneDark } from './onedarktheme';
+
+describe('themes', () => {
+  let themes: IEditorThemeRegistry;
+
+  beforeEach(() => {
+    themes = new EditorThemeRegistry();
+  });
+
+  describe('#defaultTheme', () => {
+    it('should return the `jupyter` theme', () => {
+      expect(themes.defaultTheme()).toBe(themes.getTheme('jupyter'));
+    });
+  });
+
+  describe('#addTheme', () => {
+    it('should add a new theme', () => {
+      themes.addTheme({ name: 'one dark', theme: oneDark });
+
+      expect(themes.getTheme('one dark')).toBe(oneDark);
+    });
+  });
+
+  describe('#getTheme', () => {
+    it('should return the given theme', () => {
+      themes.addTheme({ name: 'one dark', theme: oneDark });
+
+      expect(themes.getTheme('one dark')).toBe(oneDark);
+    });
+
+    it('should return the default theme if the name does not exist', () => {
+      expect(themes.getTheme('bar')).toBe(themes.defaultTheme());
+    });
+  });
+});
diff --git a/packages/codeeditor/test/widget.spec.ts b/packages/codemirror/test/widget.spec.ts
similarity index 54%
rename from packages/codeeditor/test/widget.spec.ts
rename to packages/codemirror/test/widget.spec.ts
index 213c31ecc4bf..0dd794fe565d 100644
--- a/packages/codeeditor/test/widget.spec.ts
+++ b/packages/codemirror/test/widget.spec.ts
@@ -2,8 +2,11 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
-import { framePromise } from '@jupyterlab/testutils';
+import {
+  CodeMirrorEditor,
+  EditorExtensionRegistry
+} from '@jupyterlab/codemirror';
+import { YFile } from '@jupyter/ydoc';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { simulate } from 'simulate-event';
@@ -16,16 +19,6 @@ class LogEditor extends CodeMirrorEditor {
     super.handleEvent(event);
     this.events.push(event.type);
   }
-
-  refresh(): void {
-    super.refresh();
-    this.methods.push('refresh');
-  }
-
-  setSize(dims: CodeEditor.IDimension | null): void {
-    super.setSize(dims);
-    this.methods.push('setSize');
-  }
 }
 
 class LogWidget extends CodeEditorWrapper {
@@ -59,14 +52,26 @@ class LogWidget extends CodeEditorWrapper {
 
 describe('CodeEditorWrapper', () => {
   let widget: LogWidget;
+  const extensionsRegistry = (() => {
+    const registry = new EditorExtensionRegistry();
+    EditorExtensionRegistry.getDefaultExtensions()
+      .filter(ext => ['lineNumbers'].includes(ext.name))
+      .forEach(ext => {
+        registry.addExtension(ext);
+      });
+    return registry;
+  })();
   const editorFactory = (options: CodeEditor.IOptions) => {
     options.uuid = 'foo';
-    return new LogEditor(options);
+    return new LogEditor({ ...options, extensionsRegistry });
   };
 
   beforeEach(() => {
-    const model = new CodeEditor.Model();
-    widget = new LogWidget({ factory: editorFactory, model });
+    const model = new CodeEditor.Model({ sharedModel: new YFile() });
+    widget = new LogWidget({
+      factory: editorFactory,
+      model
+    });
   });
 
   afterEach(() => {
@@ -88,7 +93,7 @@ describe('CodeEditorWrapper', () => {
 
   describe('#editor', () => {
     it('should be a a code editor', () => {
-      expect(widget.editor.getOption('lineNumbers')).toBe(false);
+      expect(widget.editor.getOption('lineNumbers')).toBe(true);
     });
   });
 
@@ -119,18 +124,9 @@ describe('CodeEditorWrapper', () => {
         Widget.attach(widget, document.body);
         const editor = widget.editor as LogEditor;
         editor.methods = [];
-        simulate(editor.editor.getInputField(), 'focus');
+        simulate(editor.editor.contentDOM, 'focus');
         expect(editor.methods).toEqual([]);
       });
-
-      it('should refresh if editor was resized', () => {
-        Widget.attach(widget, document.body);
-        const editor = widget.editor as LogEditor;
-        MessageLoop.sendMessage(widget, Widget.ResizeMessage.UnknownSize);
-        editor.methods = [];
-        simulate(editor.editor.getInputField(), 'focus');
-        expect(editor.methods).toEqual(['refresh']);
-      });
     });
   });
 
@@ -144,54 +140,4 @@ describe('CodeEditorWrapper', () => {
       expect(widget.editor.hasFocus()).toBe(true);
     });
   });
-
-  describe('#onAfterAttach()', () => {
-    it('should refresh the editor', async () => {
-      Widget.attach(widget, document.body);
-      const editor = widget.editor as LogEditor;
-      await framePromise();
-      expect(editor.methods).toEqual(expect.arrayContaining(['refresh']));
-    });
-  });
-
-  describe('#onAfterShow()', () => {
-    it('should refresh the editor', async () => {
-      widget.hide();
-      Widget.attach(widget, document.body);
-      const editor = widget.editor as LogEditor;
-      expect(editor.methods).toEqual(expect.not.arrayContaining(['refresh']));
-      widget.show();
-      expect(widget.methods).toEqual(expect.arrayContaining(['onAfterShow']));
-      await framePromise();
-      expect(editor.methods).toEqual(expect.arrayContaining(['refresh']));
-    });
-  });
-
-  describe('#onResize()', () => {
-    it('should set the size of the editor', () => {
-      const msg = new Widget.ResizeMessage(10, 10);
-      const editor = widget.editor as LogEditor;
-      MessageLoop.sendMessage(widget, msg);
-      expect(editor.methods).toEqual(expect.arrayContaining(['setSize']));
-    });
-
-    it('should refresh the editor', () => {
-      const editor = widget.editor as LogEditor;
-      Widget.attach(widget, document.body);
-      editor.focus();
-      editor.methods = [];
-      MessageLoop.sendMessage(widget, Widget.ResizeMessage.UnknownSize);
-      expect(editor.methods).toEqual(expect.arrayContaining(['refresh']));
-    });
-
-    it('should defer the refresh until focused', () => {
-      const editor = widget.editor as LogEditor;
-      Widget.attach(widget, document.body);
-      editor.methods = [];
-      MessageLoop.sendMessage(widget, Widget.ResizeMessage.UnknownSize);
-      expect(editor.methods).toEqual([]);
-      simulate(editor.editor.getInputField(), 'focus');
-      expect(editor.methods).toEqual(['refresh']);
-    });
-  });
 });
diff --git a/packages/codemirror/tsconfig.json b/packages/codemirror/tsconfig.json
index 8a872ee206a1..ec46d93a8774 100644
--- a/packages/codemirror/tsconfig.json
+++ b/packages/codemirror/tsconfig.json
@@ -4,11 +4,8 @@
     "outDir": "lib",
     "rootDir": "src"
   },
-  "include": ["src/*"],
+  "include": ["src/**/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../codeeditor"
     },
@@ -16,16 +13,10 @@
       "path": "../coreutils"
     },
     {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../shared-models"
+      "path": "../documentsearch"
     },
     {
-      "path": "../statusbar"
+      "path": "../nbformat"
     },
     {
       "path": "../translation"
diff --git a/packages/codemirror/tsconfig.test.json b/packages/codemirror/tsconfig.test.json
index d8b95c0b1238..5bbb1ba56780 100644
--- a/packages/codemirror/tsconfig.test.json
+++ b/packages/codemirror/tsconfig.test.json
@@ -1,10 +1,7 @@
 {
   "extends": "../../tsconfigbase.test",
-  "include": ["src/*", "test/*"],
+  "include": ["src/**/*", "test/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../codeeditor"
     },
@@ -12,16 +9,10 @@
       "path": "../coreutils"
     },
     {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../shared-models"
+      "path": "../documentsearch"
     },
     {
-      "path": "../statusbar"
+      "path": "../nbformat"
     },
     {
       "path": "../translation"
@@ -30,31 +21,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../shared-models"
-    },
-    {
-      "path": "../statusbar"
-    },
-    {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/codemirror/typings/codemirror/codemirror.d.ts b/packages/codemirror/typings/codemirror/codemirror.d.ts
deleted file mode 100644
index 44b529194ab9..000000000000
--- a/packages/codemirror/typings/codemirror/codemirror.d.ts
+++ /dev/null
@@ -1,227 +0,0 @@
-// Type definitions for CodeMirror
-// Project: https://github.com/marijnh/CodeMirror
-// Definitions by: mihailik <https://github.com/mihailik>
-// Definitions: https://github.com/borisyankov/DefinitelyTyped
-
-import * as CodeMirror from 'codemirror';
-
-/**
- * Define extra codemirror types that do not exist in the DefinitelyTyped
- * type resources
- */
-declare module 'codemirror' {
-  /**
-   * id will be the id for the defined mode. Typically, you should use this second argument to defineMode as your module scope function
-   * (modes should not leak anything into the global scope!), i.e. write your whole mode inside this function.
-   */
-  function defineMode(
-    id: string,
-    modefactory: ModeFactory<any>,
-    base: any
-  ): void;
-
-  /**
-   * An implementation of the CodeMirror simple mode object
-   * https://github.com/codemirror/CodeMirror/blob/master/addon/mode/simple.js
-   *
-   * Optionally generic over [S]tate names and [T]okens
-   */
-  interface ISimpleState<S, T> {
-    /**
-     * The regular expression that matches the token. May be a string or a
-     * regex object. When a regex, the ignoreCase flag will be taken into
-     * account when matching the token. This regex has to capture groups when
-     * the token property is an array. If it captures groups, it must capture
-     * all of the string (since JS provides no way to find out where a group
-     * matched).
-     */
-    regex: string | RegExp;
-    /**
-     * An optional token style. Multiple styles can be specified by separating
-     * them with dots or spaces. When this property holds an array of token styles,
-     * the regex for this rule must capture a group for each array item.
-     */
-    token?: T | null | (T | null)[];
-    /**
-     * When true, this token will only match at the start of the line.
-     * (The ^ regexp marker doesn't work as you'd expect in this context because
-     * of limitations in JavaScript's RegExp API.)
-     */
-    sol?: boolean;
-    /**
-     * When a next property is present, the mode will transfer to the state
-     * named by the property when the token is encountered.
-     */
-    next?: S;
-    /**
-     * Like next, but instead replacing the current state by the new state, the
-     * current state is kept on a stack, and can be returned to with the pop
-     * directive.
-     */
-    push?: S;
-    /**
-     * When true, and there is another state on the state stack, will cause the
-     * mode to pop that state off the stack and transition to it.
-     */
-    pop?: boolean;
-    /**
-     * Can be used to embed another mode inside a mode. When present, must hold
-     * an object with a spec property that describes the embedded mode, and an
-     * optional end end property that specifies the regexp that will end the
-     * extent of the mode. When a persistent property is set (and true), the
-     * nested mode's state will be preserved between occurrences of the mode.
-     */
-    mode?: {
-      spec: string;
-      end?: string | RegExp;
-      persistent?: boolean;
-    };
-    /**
-     * When true, this token changes the indentation to be one unit more than
-     * the current line's indentation.
-     */
-    indent?: boolean;
-    /**
-     * When true, this token will pop one scope off the indentation stack.
-     */
-    dedent?: boolean;
-    /**
-     * If a token has its dedent property set, it will, by default, cause lines
-     * where it appears at the start to be dedented. Set this property to false
-     * to prevent that behavior.
-     */
-    dedentIfLineStart?: boolean;
-  }
-
-  /**
-   * Special mode values interpreted by simple modes
-   */
-  export interface ISimpleMode<S> extends CodeMirror.Mode<S> {
-    /**
-     * Keys of simple states that should not be indented.
-     */
-    dontIndentStates?: S[];
-  }
-
-  /**
-   * A string-keyed set of simple state rule lists.
-   */
-  export type TSimpleStates<S = string, T = any> = {
-    [key: string]: ISimpleState<S, T>[];
-  };
-
-  /**
-   * The special-case for mode metadata in an otherwise state-keyed map.
-   */
-  export interface ISimpleMeta<S, T> {
-    meta: ISimpleMode<S>;
-  }
-
-  /**
-   * A top-level simple state.
-   */
-  export type TSimpleTopState<S, T> = Partial<
-    TSimpleStates<S, T> & ISimpleMeta<S, T>
-  >;
-
-  /**
-   * Create an instance of a simple mode from its config and states.
-   */
-  function simpleMode<S, T>(config: any, states: TSimpleTopState<S, T>): void;
-
-  /**
-   * Define a named simple mode from states and optional metadata
-   *
-   * ### Notes
-   * Provide generic States (S) and Tokens (T) for more precision.
-   */
-  function defineSimpleMode<S, T>(
-    name: string,
-    states: TSimpleTopState<S, T>
-  ): void;
-
-  /**
-   * Define a mimetype.
-   */
-  function defineMIME(mimetype: string, mode: any): void;
-
-  /**
-   * A mode that encompasses many mode types.
-   */
-  function multiplexingMode<T>(...modes: any[]): Mode<T>;
-
-  /**
-   * Fired on a keydown event on the editor.
-   */
-  function on(
-    editor: Editor,
-    eventName: 'keydown',
-    handler: (instance: Editor, event: KeyboardEvent) => void
-  ): void;
-  function off(
-    editor: Editor,
-    eventName: 'keydown',
-    handler: (instance: Editor, event: KeyboardEvent) => void
-  ): void;
-
-  interface Editor {
-    /** Scrolls the given element into view. pos is a { from, to } object, in editor-local coordinates.
-     The margin parameter is optional. When given, it indicates the amount of pixels around the given area that should be made visible as well. */
-    scrollIntoView(
-      pos: { from: CodeMirror.Position; to: CodeMirror.Position },
-      margin?: number
-    ): void;
-
-    /** Trigger key events onto the editor instance. Not for production use, only for testing.
-     See this comment: https://github.com/codemirror/CodeMirror/issues/1935#issuecomment-28178991 */
-    triggerOnKeyDown(event: Event): void;
-  }
-
-  interface Selection {
-    /**
-     * the fixed side of the selection
-     */
-    anchor: Position;
-    /**
-     * the side of the selection that moves
-     */
-    head: Position;
-  }
-
-  // findMode* functions are from loading the codemirror/mode/meta module
-  interface modespec {
-    ext?: string[];
-    name?: string;
-    mode: string;
-    mime: string;
-  }
-
-  function runMode(
-    code: string,
-    mode: modespec | string,
-    el: HTMLElement
-  ): void;
-
-  function findModeByName(name: string): modespec;
-  function findModeByExtension(name: string): modespec;
-  function findModeByFileName(name: string): modespec;
-  function findModeByMIME(mime: string): modespec;
-
-  // come back to this later
-  interface Context {
-    state: any;
-    doc: Document;
-    line: number;
-    maxLookAhead: number;
-    baseTokens: string[];
-    baseTokenPos: number;
-  }
-
-  interface StringStream {
-    lineOracle: Context;
-  }
-
-  interface EditorConfiguration {
-    lineSeparator?: string | null;
-  }
-}
diff --git a/packages/completer-extension/package.json b/packages/completer-extension/package.json
index 845a6a90a2ee..55cc251e9ef6 100644
--- a/packages/completer-extension/package.json
+++ b/packages/completer-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/completer-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Completer Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,20 +38,18 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/completer": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@rjsf/utils": "^5.1.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer-extension/schema/manager.json b/packages/completer-extension/schema/manager.json
new file mode 100644
index 000000000000..672a2c5b0335
--- /dev/null
+++ b/packages/completer-extension/schema/manager.json
@@ -0,0 +1,43 @@
+{
+  "title": "Code Completion",
+  "description": "Code Completion settings.",
+  "jupyter.lab.setting-icon-label": "Code Completion settings",
+  "jupyter.lab.transform": true,
+  "properties": {
+    "availableProviders": {
+      "title": "Completion providers rank setting.",
+      "description": "Providers with higher rank will be shown before the ones with lower rank, providers with negative rank are disabled.",
+      "type": "object",
+      "patternProperties": {
+        "^.*$": {
+          "type": "integer"
+        }
+      },
+      "additionalProperties": false,
+      "default": {
+        "CompletionProvider:context": 500,
+        "CompletionProvider:kernel": 550
+      }
+    },
+    "providerTimeout": {
+      "title": "Default timeout for a provider.",
+      "description": "If a provider can not return the response for a completer request before timeout, the result of this provider will be ignored. Value is in millisecond",
+      "type": "number",
+      "default": 1000
+    },
+    "showDocumentationPanel": {
+      "title": "Show the documentation panel.",
+      "description": "Documentation panel setting.",
+      "type": "boolean",
+      "default": false
+    },
+    "autoCompletion": {
+      "title": "Enable autocompletion.",
+      "description": "Autocompletion setting.",
+      "type": "boolean",
+      "default": false
+    }
+  },
+  "additionalProperties": false,
+  "type": "object"
+}
diff --git a/packages/completer-extension/src/index.ts b/packages/completer-extension/src/index.ts
index f3d0259fbecd..282550e82144 100644
--- a/packages/completer-extension/src/index.ts
+++ b/packages/completer-extension/src/index.ts
@@ -9,385 +9,120 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-import { ISanitizer } from '@jupyterlab/apputils';
 import {
-  Completer,
-  CompleterModel,
-  CompletionConnector,
-  CompletionHandler,
-  ContextConnector,
-  ICompletionManager
+  CompletionProviderManager,
+  ContextCompleterProvider,
+  ICompletionProviderManager,
+  KernelCompleterProvider
 } from '@jupyterlab/completer';
-import { IConsoleTracker } from '@jupyterlab/console';
-import { IEditorTracker } from '@jupyterlab/fileeditor';
-import { INotebookTracker } from '@jupyterlab/notebook';
-import { Session } from '@jupyterlab/services';
-import { find, toArray } from '@lumino/algorithm';
-import { Widget } from '@lumino/widgets';
-
-/**
- * The command IDs used by the completer plugin.
- */
-namespace CommandIDs {
-  export const invoke = 'completer:invoke';
-
-  export const invokeConsole = 'completer:invoke-console';
-
-  export const invokeNotebook = 'completer:invoke-notebook';
-
-  export const invokeFile = 'completer:invoke-file';
-
-  export const select = 'completer:select';
-
-  export const selectConsole = 'completer:select-console';
-
-  export const selectNotebook = 'completer:select-notebook';
-
-  export const selectFile = 'completer:select-file';
-}
-
-/**
- * A plugin providing code completion for editors.
- */
-const manager: JupyterFrontEndPlugin<ICompletionManager> = {
-  id: '@jupyterlab/completer-extension:manager',
-  autoStart: true,
-  provides: ICompletionManager,
-  optional: [ISanitizer],
-  activate: (
-    app: JupyterFrontEnd,
-    sanitizer: ISanitizer | null
-  ): ICompletionManager => {
-    const handlers: { [id: string]: CompletionHandler } = {};
-
-    app.commands.addCommand(CommandIDs.invoke, {
-      execute: args => {
-        const id = args && (args['id'] as string);
-        if (!id) {
-          return;
-        }
-
-        const handler = handlers[id];
-        if (handler) {
-          handler.invoke();
-        }
-      }
-    });
-
-    app.commands.addCommand(CommandIDs.select, {
-      execute: args => {
-        const id = args && (args['id'] as string);
-        if (!id) {
-          return;
-        }
-
-        const handler = handlers[id];
-        if (handler) {
-          handler.completer.selectActive();
-        }
-      }
-    });
-
-    return {
-      register: (
-        completable: ICompletionManager.ICompletable,
-        renderer: Completer.IRenderer = Completer.getDefaultRenderer(
-          sanitizer ?? undefined
-        )
-      ): ICompletionManager.ICompletableAttributes => {
-        const { connector, editor, parent } = completable;
-        const model = new CompleterModel();
-        const completer = new Completer({
-          editor,
-          model,
-          renderer,
-          sanitizer: sanitizer ?? undefined
-        });
-        const handler = new CompletionHandler({
-          completer,
-          connector
-        });
-        const id = parent.id;
-
-        // Hide the widget when it first loads.
-        completer.hide();
-
-        // Associate the handler with the parent widget.
-        handlers[id] = handler;
-
-        // Set the handler's editor.
-        handler.editor = editor;
-
-        // Attach the completer widget.
-        Widget.attach(completer, document.body);
-
-        // Listen for parent disposal.
-        parent.disposed.connect(() => {
-          delete handlers[id];
-          model.dispose();
-          completer.dispose();
-          handler.dispose();
-        });
-
-        return handler;
-      }
-    };
-  }
-};
-
-/**
- * An extension that registers consoles for code completion.
- */
-const consoles: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/completer-extension:consoles',
-  requires: [ICompletionManager, IConsoleTracker],
-  autoStart: true,
-  activate: (
-    app: JupyterFrontEnd,
-    manager: ICompletionManager,
-    consoles: IConsoleTracker
-  ): void => {
-    // Create a handler for each console that is created.
-    consoles.widgetAdded.connect((sender, widget) => {
-      const anchor = widget.console;
-      const editor = anchor.promptCell?.editor ?? null;
-      const session = anchor.sessionContext.session;
-      // TODO: CompletionConnector assumes editor and session are not null
-      const connector = new CompletionConnector({ session, editor });
-      const handler = manager.register({ connector, editor, parent: widget });
-
-      const updateConnector = () => {
-        const editor = anchor.promptCell?.editor ?? null;
-        const session = anchor.sessionContext.session;
-
-        handler.editor = editor;
-        // TODO: CompletionConnector assumes editor and session are not null
-        handler.connector = new CompletionConnector({ session, editor });
-      };
-
-      // Update the handler whenever the prompt or session changes
-      anchor.promptCellCreated.connect(updateConnector);
-      anchor.sessionContext.sessionChanged.connect(updateConnector);
-    });
-
-    // Add console completer invoke command.
-    app.commands.addCommand(CommandIDs.invokeConsole, {
-      execute: () => {
-        const id = consoles.currentWidget && consoles.currentWidget.id;
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import {
+  IFormRenderer,
+  IFormRendererRegistry
+} from '@jupyterlab/ui-components';
+import type { FieldProps } from '@rjsf/utils';
 
-        if (id) {
-          return app.commands.execute(CommandIDs.invoke, { id });
-        }
-      }
-    });
+import { renderAvailableProviders } from './renderer';
 
-    // Add console completer select command.
-    app.commands.addCommand(CommandIDs.selectConsole, {
-      execute: () => {
-        const id = consoles.currentWidget && consoles.currentWidget.id;
+const COMPLETION_MANAGER_PLUGIN = '@jupyterlab/completer-extension:manager';
 
-        if (id) {
-          return app.commands.execute(CommandIDs.select, { id });
-        }
-      }
-    });
-
-    // Set enter key for console completer select command.
-    app.commands.addKeyBinding({
-      command: CommandIDs.selectConsole,
-      keys: ['Enter'],
-      selector: `.jp-ConsolePanel .jp-mod-completer-active`
-    });
-  }
-};
-
-/**
- * An extension that registers notebooks for code completion.
- */
-const notebooks: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/completer-extension:notebooks',
-  requires: [ICompletionManager, INotebookTracker],
+const defaultProvider: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/completer-extension:base-service',
+  description: 'Adds context and kernel completion providers.',
+  requires: [ICompletionProviderManager],
   autoStart: true,
   activate: (
     app: JupyterFrontEnd,
-    manager: ICompletionManager,
-    notebooks: INotebookTracker
+    completionManager: ICompletionProviderManager
   ): void => {
-    // Create a handler for each notebook that is created.
-    notebooks.widgetAdded.connect((sender, panel) => {
-      const editor = panel.content.activeCell?.editor ?? null;
-      const session = panel.sessionContext.session;
-      // TODO: CompletionConnector assumes editor and session are not null
-      const connector = new CompletionConnector({ session, editor });
-      const handler = manager.register({ connector, editor, parent: panel });
-
-      const updateConnector = () => {
-        const editor = panel.content.activeCell?.editor ?? null;
-        const session = panel.sessionContext.session;
-
-        handler.editor = editor;
-        // TODO: CompletionConnector assumes editor and session are not null
-        handler.connector = new CompletionConnector({ session, editor });
-      };
-
-      // Update the handler whenever the prompt or session changes
-      panel.content.activeCellChanged.connect(updateConnector);
-      panel.sessionContext.sessionChanged.connect(updateConnector);
-    });
-
-    // Add notebook completer command.
-    app.commands.addCommand(CommandIDs.invokeNotebook, {
-      execute: () => {
-        const panel = notebooks.currentWidget;
-        if (panel && panel.content.activeCell?.model.type === 'code') {
-          return app.commands.execute(CommandIDs.invoke, { id: panel.id });
-        }
-      }
-    });
-
-    // Add notebook completer select command.
-    app.commands.addCommand(CommandIDs.selectNotebook, {
-      execute: () => {
-        const id = notebooks.currentWidget && notebooks.currentWidget.id;
-
-        if (id) {
-          return app.commands.execute(CommandIDs.select, { id });
-        }
-      }
-    });
-
-    // Set enter key for notebook completer select command.
-    app.commands.addKeyBinding({
-      command: CommandIDs.selectNotebook,
-      keys: ['Enter'],
-      selector: `.jp-Notebook .jp-mod-completer-active`
-    });
+    completionManager.registerProvider(new ContextCompleterProvider());
+    completionManager.registerProvider(new KernelCompleterProvider());
   }
 };
 
-/**
- * An extension that registers file editors for completion.
- */
-const files: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/completer-extension:files',
-  requires: [ICompletionManager, IEditorTracker],
+const manager: JupyterFrontEndPlugin<ICompletionProviderManager> = {
+  id: COMPLETION_MANAGER_PLUGIN,
+  description: 'Provides the completion provider manager.',
+  requires: [ISettingRegistry],
+  optional: [IFormRendererRegistry],
+  provides: ICompletionProviderManager,
   autoStart: true,
   activate: (
     app: JupyterFrontEnd,
-    manager: ICompletionManager,
-    editorTracker: IEditorTracker
-  ): void => {
-    // Keep a list of active ISessions so that we can
-    // clean them up when they are no longer needed.
-    const activeSessions: {
-      [id: string]: Session.ISessionConnection;
-    } = {};
-
-    // When a new file editor is created, make the completer for it.
-    editorTracker.widgetAdded.connect((sender, widget) => {
-      const sessions = app.serviceManager.sessions;
-      const editor = widget.content.editor;
-      const contextConnector = new ContextConnector({ editor });
-
-      // Initially create the handler with the contextConnector.
-      // If a kernel session is found matching this file editor,
-      // it will be replaced in onRunningChanged().
-      const handler = manager.register({
-        connector: contextConnector,
-        editor,
-        parent: widget
-      });
+    settings: ISettingRegistry,
+    editorRegistry: IFormRendererRegistry | null
+  ): ICompletionProviderManager => {
+    const AVAILABLE_PROVIDERS = 'availableProviders';
+    const PROVIDER_TIMEOUT = 'providerTimeout';
+    const SHOW_DOCUMENT_PANEL = 'showDocumentationPanel';
+    const CONTINUOUS_HINTING = 'autoCompletion';
+    const manager = new CompletionProviderManager();
+    const updateSetting = (
+      settingValues: ISettingRegistry.ISettings,
+      availableProviders: string[]
+    ): void => {
+      const providersData = settingValues.get(AVAILABLE_PROVIDERS);
+      const timeout = settingValues.get(PROVIDER_TIMEOUT);
+      const showDoc = settingValues.get(SHOW_DOCUMENT_PANEL);
+      const continuousHinting = settingValues.get(CONTINUOUS_HINTING);
+      manager.setTimeout(timeout.composite as number);
+      manager.setShowDocumentationPanel(showDoc.composite as boolean);
+      manager.setContinuousHinting(continuousHinting.composite as boolean);
+      const selectedProviders = providersData.user ?? providersData.composite;
+      const sortedProviders = Object.entries(selectedProviders ?? {})
+        .filter(val => val[1] >= 0 && availableProviders.includes(val[0]))
+        .sort(([, rank1], [, rank2]) => rank2 - rank1)
+        .map(item => item[0]);
+      manager.activateProvider(sortedProviders);
+    };
 
-      // When the list of running sessions changes,
-      // check to see if there are any kernels with a
-      // matching path for this file editor.
-      const onRunningChanged = (
-        sender: Session.IManager,
-        models: Session.IModel[]
-      ) => {
-        const oldSession = activeSessions[widget.id];
-        // Search for a matching path.
-        const model = find(models, m => m.path === widget.context.path);
-        if (model) {
-          // If there is a matching path, but it is the same
-          // session as we previously had, do nothing.
-          if (oldSession && oldSession.id === model.id) {
-            return;
-          }
-          // Otherwise, dispose of the old session and reset to
-          // a new CompletionConnector.
-          if (oldSession) {
-            delete activeSessions[widget.id];
-            oldSession.dispose();
-          }
-          const session = sessions.connectTo({ model });
-          handler.connector = new CompletionConnector({ session, editor });
-          activeSessions[widget.id] = session;
-        } else {
-          // If we didn't find a match, make sure
-          // the connector is the contextConnector and
-          // dispose of any previous connection.
-          handler.connector = contextConnector;
-          if (oldSession) {
-            delete activeSessions[widget.id];
-            oldSession.dispose();
+    app.restored
+      .then(() => {
+        const availableProviders = [...manager.getProviders().entries()];
+        const availableProviderIDs = availableProviders.map(
+          ([key, value]) => key
+        );
+        settings.transform(COMPLETION_MANAGER_PLUGIN, {
+          fetch: plugin => {
+            const schema = plugin.schema.properties!;
+            const defaultValue: { [key: string]: number } = {};
+            availableProviders.forEach(([key, value], index) => {
+              defaultValue[key] = value.rank ?? (index + 1) * 10;
+            });
+            schema[AVAILABLE_PROVIDERS]['default'] = defaultValue;
+            return plugin;
           }
+        });
+        const settingsPromise = settings.load(COMPLETION_MANAGER_PLUGIN);
+        settingsPromise
+          .then(settingValues => {
+            updateSetting(settingValues, availableProviderIDs);
+            settingValues.changed.connect(newSettings => {
+              updateSetting(newSettings, availableProviderIDs);
+            });
+          })
+          .catch(console.error);
+      })
+      .catch(console.error);
+
+    if (editorRegistry) {
+      const renderer: IFormRenderer = {
+        fieldRenderer: (props: FieldProps) => {
+          return renderAvailableProviders(props);
         }
       };
-      onRunningChanged(sessions, toArray(sessions.running()));
-      sessions.runningChanged.connect(onRunningChanged);
-
-      // When the widget is disposed, do some cleanup.
-      widget.disposed.connect(() => {
-        sessions.runningChanged.disconnect(onRunningChanged);
-        const session = activeSessions[widget.id];
-        if (session) {
-          delete activeSessions[widget.id];
-          session.dispose();
-        }
-      });
-    });
-
-    // Add console completer invoke command.
-    app.commands.addCommand(CommandIDs.invokeFile, {
-      execute: () => {
-        const id =
-          editorTracker.currentWidget && editorTracker.currentWidget.id;
-
-        if (id) {
-          return app.commands.execute(CommandIDs.invoke, { id });
-        }
-      }
-    });
-
-    // Add console completer select command.
-    app.commands.addCommand(CommandIDs.selectFile, {
-      execute: () => {
-        const id =
-          editorTracker.currentWidget && editorTracker.currentWidget.id;
-
-        if (id) {
-          return app.commands.execute(CommandIDs.select, { id });
-        }
-      }
-    });
+      editorRegistry.addRenderer(
+        `${COMPLETION_MANAGER_PLUGIN}.availableProviders`,
+        renderer
+      );
+    }
 
-    // Set enter key for console completer select command.
-    app.commands.addKeyBinding({
-      command: CommandIDs.selectFile,
-      keys: ['Enter'],
-      selector: `.jp-FileEditor .jp-mod-completer-active`
-    });
+    return manager;
   }
 };
 
 /**
  * Export the plugins as default.
  */
-const plugins: JupyterFrontEndPlugin<any>[] = [
-  manager,
-  consoles,
-  notebooks,
-  files
-];
+const plugins: JupyterFrontEndPlugin<any>[] = [manager, defaultProvider];
 export default plugins;
diff --git a/packages/completer-extension/src/renderer.tsx b/packages/completer-extension/src/renderer.tsx
new file mode 100644
index 000000000000..ee3c92c0e750
--- /dev/null
+++ b/packages/completer-extension/src/renderer.tsx
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
+import type { FieldProps } from '@rjsf/utils';
+import React, { useState } from 'react';
+
+const AVAILABLE_PROVIDERS = 'availableProviders';
+
+/**
+ * Custom setting renderer for provider rank.
+ */
+export function renderAvailableProviders(props: FieldProps): JSX.Element {
+  const { schema } = props;
+  const title = schema.title;
+  const desc = schema.description;
+  const settings: ISettingRegistry.ISettings = props.formContext.settings;
+  const userData = settings.get(AVAILABLE_PROVIDERS).user as
+    | ReadonlyPartialJSONObject
+    | undefined;
+
+  const items = {
+    ...(schema.default as { [key: string]: number })
+  };
+  if (userData) {
+    for (const key of Object.keys(items)) {
+      if (key in userData) {
+        items[key] = userData[key] as number;
+      } else {
+        items[key] = -1;
+      }
+    }
+  }
+
+  const [settingValue, setValue] = useState(items);
+  const onSettingChange = (
+    key: string,
+    e: React.ChangeEvent<HTMLInputElement>
+  ) => {
+    const newValue = {
+      ...settingValue,
+      [key]: parseInt(e.target.value)
+    };
+
+    settings.set(AVAILABLE_PROVIDERS, newValue).catch(console.error);
+
+    setValue(newValue);
+  };
+  return (
+    //TODO Remove hard coded class names
+    <div>
+      <fieldset>
+        <legend>{title}</legend>
+        <p className="field-description">{desc}</p>
+        {Object.keys(items).map(key => {
+          return (
+            <div key={key} className="form-group small-field">
+              <div>
+                <h3> {key}</h3>
+                <div className="inputFieldWrapper">
+                  <input
+                    className="form-control"
+                    type="number"
+                    value={settingValue[key]}
+                    onChange={e => {
+                      onSettingChange(key, e);
+                    }}
+                  />
+                </div>
+              </div>
+            </div>
+          );
+        })}
+      </fieldset>
+    </div>
+  );
+}
diff --git a/packages/completer-extension/style/index.css b/packages/completer-extension/style/index.css
index 2de15d2c3ccc..bd1d72fcfa15 100644
--- a/packages/completer-extension/style/index.css
+++ b/packages/completer-extension/style/index.css
@@ -4,10 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/completer/style/index.css');
-@import url('~@jupyterlab/console/style/index.css');
-@import url('~@jupyterlab/fileeditor/style/index.css');
-@import url('~@jupyterlab/notebook/style/index.css');
diff --git a/packages/completer-extension/style/index.js b/packages/completer-extension/style/index.js
index 1f8949f0bd43..9f5d9b1132bc 100644
--- a/packages/completer-extension/style/index.js
+++ b/packages/completer-extension/style/index.js
@@ -4,10 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@lumino/widgets/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/completer/style/index.js';
-import '@jupyterlab/console/style/index.js';
-import '@jupyterlab/fileeditor/style/index.js';
-import '@jupyterlab/notebook/style/index.js';
diff --git a/packages/completer-extension/tsconfig.json b/packages/completer-extension/tsconfig.json
index 857ccbff721f..ae04f9d5706c 100644
--- a/packages/completer-extension/tsconfig.json
+++ b/packages/completer-extension/tsconfig.json
@@ -16,16 +16,10 @@
       "path": "../completer"
     },
     {
-      "path": "../console"
+      "path": "../settingregistry"
     },
     {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
-    {
-      "path": "../services"
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/completer/.vscode/launch.json b/packages/completer/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/completer/.vscode/launch.json
+++ b/packages/completer/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/completer/babel.config.js b/packages/completer/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/completer/babel.config.js
+++ b/packages/completer/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/completer/jest.config.js b/packages/completer/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/completer/jest.config.js
+++ b/packages/completer/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/completer/package.json b/packages/completer/package.json
index 64505276ea45..d8f9db983cfd 100644
--- a/packages/completer/package.json
+++ b/packages/completer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/completer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Completer",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -26,8 +26,12 @@
     "lib/*.d.ts",
     "lib/*.js.map",
     "lib/*.js",
+    "lib/default/*.d.ts",
+    "lib/default/*.js.map",
+    "lib/default/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,33 +40,34 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer/src/connector.ts b/packages/completer/src/connector.ts
deleted file mode 100644
index 68e0f779378c..000000000000
--- a/packages/completer/src/connector.ts
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { DataConnector } from '@jupyterlab/statedb';
-import { ContextConnector } from './contextconnector';
-import { CompletionHandler } from './handler';
-import { KernelConnector } from './kernelconnector';
-
-/**
- * A context+kernel connector for completion handlers.
- */
-export class CompletionConnector extends DataConnector<
-  CompletionHandler.IReply,
-  void,
-  CompletionHandler.IRequest
-> {
-  /**
-   * Create a new connector for completion requests.
-   *
-   * @param options - The instantiation options for the connector.
-   */
-  constructor(options: CompletionConnector.IOptions) {
-    super();
-    this._kernel = new KernelConnector(options);
-    this._context = new ContextConnector(options);
-  }
-
-  /**
-   * Fetch completion requests.
-   *
-   * @param request - The completion request text and details.
-   */
-  fetch(
-    request: CompletionHandler.IRequest
-  ): Promise<CompletionHandler.IReply> {
-    return Promise.all([
-      this._kernel.fetch(request),
-      this._context.fetch(request)
-    ]).then(([kernel, context]) => Private.mergeReplies(kernel, context));
-  }
-
-  private _kernel: KernelConnector;
-  private _context: ContextConnector;
-}
-
-/**
- * A namespace for completion connector statics.
- */
-export namespace CompletionConnector {
-  /**
-   * The instantiation options for cell completion handlers.
-   */
-  export type IOptions = KernelConnector.IOptions & ContextConnector.IOptions;
-}
-
-/**
- * A namespace for private functionality.
- */
-namespace Private {
-  /**
-   * Merge results from kernel and context completions.
-   *
-   * @param kernel - The kernel reply being merged.
-   *
-   * @param context - The context reply being merged.
-   *
-   * @returns A reply with a superset of kernel and context matches.
-   *
-   * #### Notes
-   * The kernel and context matches are merged with a preference for kernel
-   * results. Both lists are known to contain unique, non-repeating items;
-   * so this function returns a non-repeating superset by filtering out
-   * duplicates from the context list that appear in the kernel list.
-   */
-  export function mergeReplies(
-    kernel: CompletionHandler.IReply,
-    context: CompletionHandler.IReply
-  ): CompletionHandler.IReply {
-    // If one is empty, return the other.
-    if (kernel.matches.length === 0) {
-      return context;
-    } else if (context.matches.length === 0) {
-      return kernel;
-    }
-
-    // Populate the result with a copy of the kernel matches.
-    const matches = kernel.matches.slice();
-
-    // Cache all the kernel matches in a memo.
-    const memo = matches.reduce((acc, val) => {
-      acc[val] = null;
-      return acc;
-    }, {} as { [key: string]: string | null });
-
-    // Add each context match that is not in the memo to the result.
-    context.matches.forEach(match => {
-      if (!(match in memo)) {
-        matches.push(match);
-      }
-    });
-    return { ...kernel, matches };
-  }
-}
diff --git a/packages/completer/src/contextconnector.ts b/packages/completer/src/default/contextprovider.ts
similarity index 55%
rename from packages/completer/src/contextconnector.ts
rename to packages/completer/src/default/contextprovider.ts
index b7cadcabdf31..7a6f2719ead4 100644
--- a/packages/completer/src/contextconnector.ts
+++ b/packages/completer/src/default/contextprovider.ts
@@ -2,25 +2,27 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { DataConnector } from '@jupyterlab/statedb';
-import { CompletionHandler } from './handler';
 
+import { CompletionHandler } from '../handler';
+import { ICompletionContext, ICompletionProvider } from '../tokens';
+
+export const CONTEXT_PROVIDER_ID = 'CompletionProvider:context';
 /**
  * A context connector for completion handlers.
  */
-export class ContextConnector extends DataConnector<
-  CompletionHandler.IReply,
-  void,
-  CompletionHandler.IRequest
-> {
+export class ContextCompleterProvider implements ICompletionProvider {
+  readonly identifier = CONTEXT_PROVIDER_ID;
+
+  readonly rank: number = 500;
+
+  readonly renderer = null;
+
   /**
-   * Create a new context connector for completion requests.
-   *
-   * @param options - The instantiation options for the context connector.
+   * The context completion provider is applicable on all cases.
+   * @param context - additional information about context of completion request
    */
-  constructor(options: ContextConnector.IOptions) {
-    super();
-    this._editor = options.editor;
+  async isApplicable(context: ICompletionContext): Promise<boolean> {
+    return true;
   }
 
   /**
@@ -29,32 +31,17 @@ export class ContextConnector extends DataConnector<
    * @param request - The completion request text and details.
    */
   fetch(
-    request: CompletionHandler.IRequest
-  ): Promise<CompletionHandler.IReply> {
-    if (!this._editor) {
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext
+  ): Promise<CompletionHandler.ICompletionItemsReply> {
+    const editor = context.editor;
+    if (!editor) {
       return Promise.reject('No editor');
     }
-    return new Promise<CompletionHandler.IReply>(resolve => {
-      resolve(Private.contextHint(this._editor!));
+    return new Promise<CompletionHandler.ICompletionItemsReply>(resolve => {
+      resolve(Private.contextHint(editor!));
     });
   }
-
-  private _editor: CodeEditor.IEditor | null;
-}
-
-/**
- * A namespace for context connector statics.
- */
-export namespace ContextConnector {
-  /**
-   * The instantiation options for cell completion handlers.
-   */
-  export interface IOptions {
-    /**
-     * The session used by the context connector.
-     */
-    editor: CodeEditor.IEditor | null;
-  }
 }
 
 /**
@@ -67,10 +54,9 @@ namespace Private {
    */
   export function contextHint(
     editor: CodeEditor.IEditor
-  ): CompletionHandler.IReply {
+  ): CompletionHandler.ICompletionItemsReply {
     // Find the token at the cursor
-    const cursor = editor.getCursorPosition();
-    const token = editor.getTokenForPosition(cursor);
+    const token = editor.getTokenAtCursor();
 
     // Get the list of matching tokens.
     const tokenList = getCompletionTokens(token, editor);
@@ -79,13 +65,14 @@ namespace Private {
     // field, which are likely to be of interest.
     const completionList = tokenList.filter(t => t.type).map(t => t.value);
     // Remove duplicate completions from the list
-    const matches = Array.from(new Set<string>(completionList));
+    const matches = new Set<string>(completionList);
+    const items = new Array<CompletionHandler.ICompletionItem>();
+    matches.forEach(label => items.push({ label }));
 
     return {
       start: token.offset,
       end: token.offset + token.value.length,
-      matches,
-      metadata: {}
+      items
     };
   }
 
diff --git a/packages/completer/src/default/kernelprovider.ts b/packages/completer/src/default/kernelprovider.ts
new file mode 100644
index 000000000000..062d066ba863
--- /dev/null
+++ b/packages/completer/src/default/kernelprovider.ts
@@ -0,0 +1,143 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Text } from '@jupyterlab/coreutils';
+import { KernelMessage } from '@jupyterlab/services';
+import { SourceChange } from '@jupyter/ydoc';
+import { JSONObject } from '@lumino/coreutils';
+import { CompletionHandler } from '../handler';
+import { ICompletionContext, ICompletionProvider } from '../tokens';
+import { Completer } from '../widget';
+
+export const KERNEL_PROVIDER_ID = 'CompletionProvider:kernel';
+/**
+ * A kernel connector for completion handlers.
+ */
+export class KernelCompleterProvider implements ICompletionProvider {
+  readonly identifier = KERNEL_PROVIDER_ID;
+
+  readonly rank: number = 550;
+
+  readonly renderer = null;
+
+  /**
+   * The kernel completion provider is applicable only if the kernel is available.
+   * @param context - additional information about context of completion request
+   */
+  async isApplicable(context: ICompletionContext): Promise<boolean> {
+    const hasKernel = context.session?.kernel;
+    if (!hasKernel) {
+      return false;
+    }
+    return true;
+  }
+  /**
+   * Fetch completion requests.
+   *
+   * @param request - The completion request text and details.
+   */
+  async fetch(
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext
+  ): Promise<CompletionHandler.ICompletionItemsReply> {
+    const kernel = context.session?.kernel;
+    if (!kernel) {
+      throw new Error('No kernel for completion request.');
+    }
+
+    const contents: KernelMessage.ICompleteRequestMsg['content'] = {
+      code: request.text,
+      cursor_pos: request.offset
+    };
+
+    const msg = await kernel.requestComplete(contents);
+    const response = msg.content;
+
+    if (response.status !== 'ok') {
+      throw new Error('Completion fetch failed to return successfully.');
+    }
+
+    const items = new Array<CompletionHandler.ICompletionItem>();
+    const metadata = response.metadata._jupyter_types_experimental as
+      | Array<JSONObject>
+      | undefined;
+    response.matches.forEach((label, index) => {
+      if (metadata && metadata[index]) {
+        items.push({
+          label,
+          type: metadata[index].type as string,
+          insertText: metadata[index].text as string
+        });
+      } else {
+        items.push({ label });
+      }
+    });
+    return {
+      start: response.cursor_start,
+      end: response.cursor_end,
+      items
+    };
+  }
+
+  /**
+   * Kernel provider will use the inspect request to lazy-load the content
+   * for document panel.
+   */
+  async resolve(
+    item: CompletionHandler.ICompletionItem,
+    context: ICompletionContext,
+    patch?: Completer.IPatch | null
+  ): Promise<CompletionHandler.ICompletionItem> {
+    const { editor, session } = context;
+    if (session && editor) {
+      let code = editor.model.sharedModel.getSource();
+
+      const position = editor.getCursorPosition();
+      let offset = Text.jsIndexToCharIndex(editor.getOffsetAt(position), code);
+      const kernel = session.kernel;
+      if (!code || !kernel) {
+        return Promise.resolve(item);
+      }
+      if (patch) {
+        const { start, value } = patch;
+        code = code.substring(0, start) + value;
+        offset = offset + value.length;
+      }
+
+      const contents: KernelMessage.IInspectRequestMsg['content'] = {
+        code,
+        cursor_pos: offset,
+        detail_level: 0
+      };
+      const msg = await kernel.requestInspect(contents);
+      const value = msg.content;
+      if (value.status !== 'ok' || !value.found) {
+        return item;
+      }
+      item.documentation = value.data['text/plain'] as string;
+      return item;
+    }
+    return item;
+  }
+
+  /**
+   * Kernel provider will activate the completer in continuous mode after
+   * the `.` character.
+   */
+  shouldShowContinuousHint(visible: boolean, changed: SourceChange): boolean {
+    const sourceChange = changed.sourceChange;
+    if (sourceChange == null) {
+      return true;
+    }
+
+    if (sourceChange.some(delta => delta.delete != null)) {
+      return false;
+    }
+
+    return sourceChange.some(
+      delta =>
+        delta.insert != null &&
+        (delta.insert === '.' || (!visible && delta.insert.trim().length > 0))
+    );
+  }
+}
diff --git a/packages/completer/src/dummyconnector.ts b/packages/completer/src/dummyconnector.ts
deleted file mode 100644
index 6c6300fb4207..000000000000
--- a/packages/completer/src/dummyconnector.ts
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { DataConnector } from '@jupyterlab/statedb';
-import { CompletionHandler } from './handler';
-
-/**
- * DummyConnector's fetch method always returns a rejected Promise.
- * This class is only instantiated if both CompletionHandler._connector and
- * CompletionHandler._fetchItems are undefined.
- */
-export class DummyConnector extends DataConnector<
-  CompletionHandler.IReply,
-  void,
-  CompletionHandler.IRequest
-> {
-  fetch(_: CompletionHandler.IRequest): Promise<CompletionHandler.IReply> {
-    return Promise.reject(
-      'Attempting to fetch with DummyConnector. Please ensure connector responseType is set.'
-    );
-  }
-}
diff --git a/packages/completer/src/handler.ts b/packages/completer/src/handler.ts
index 75b3fa723542..6833ce097c55 100644
--- a/packages/completer/src/handler.ts
+++ b/packages/completer/src/handler.ts
@@ -3,13 +3,14 @@
 
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import { Text } from '@jupyterlab/coreutils';
+import { ISharedText, SourceChange } from '@jupyter/ydoc';
 import { IDataConnector } from '@jupyterlab/statedb';
 import { LabIcon } from '@jupyterlab/ui-components';
-import { JSONArray, JSONObject, ReadonlyJSONObject } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Signal } from '@lumino/signaling';
-import { DummyConnector } from './dummyconnector';
+
+import { CompletionTriggerKind, IProviderReconciliator } from './tokens';
 import { Completer } from './widget';
 
 /**
@@ -33,7 +34,7 @@ export class CompletionHandler implements IDisposable {
     this.completer = options.completer;
     this.completer.selected.connect(this.onCompletionSelected, this);
     this.completer.visibilityChanged.connect(this.onVisibilityChanged, this);
-    this._connector = options.connector;
+    this._reconciliator = options.reconciliator;
   }
 
   /**
@@ -41,47 +42,17 @@ export class CompletionHandler implements IDisposable {
    */
   readonly completer: Completer;
 
-  /**
-   * The data connector used to populate completion requests.
-   * @deprecated will be removed, or will return `CompletionHandler.ICompletionItemsConnector`
-   * instead of `IDataConnector` in future versions
-   *
-   * #### Notes
-   * The only method of this connector that will ever be called is `fetch`, so
-   * it is acceptable for the other methods to be simple functions that return
-   * rejected promises.
-   */
-  get connector(): IDataConnector<
-    CompletionHandler.IReply,
-    void,
-    CompletionHandler.IRequest
-  > {
-    if ('responseType' in this._connector) {
-      return new DummyConnector();
-    }
-    return this._connector as IDataConnector<
-      CompletionHandler.IReply,
-      void,
-      CompletionHandler.IRequest
-    >;
-  }
-  set connector(
-    connector: IDataConnector<
-      CompletionHandler.IReply,
-      void,
-      CompletionHandler.IRequest
-    >
-  ) {
-    this._connector = connector;
+  set reconciliator(reconciliator: IProviderReconciliator) {
+    this._reconciliator = reconciliator;
   }
 
   /**
    * The editor used by the completion handler.
    */
-  get editor(): CodeEditor.IEditor | null {
+  get editor(): CodeEditor.IEditor | null | undefined {
     return this._editor;
   }
-  set editor(newValue: CodeEditor.IEditor | null) {
+  set editor(newValue: CodeEditor.IEditor | null | undefined) {
     if (newValue === this._editor) {
       return;
     }
@@ -95,7 +66,7 @@ export class CompletionHandler implements IDisposable {
       editor.host.classList.remove(COMPLETER_ENABLED_CLASS);
       editor.host.classList.remove(COMPLETER_ACTIVE_CLASS);
       model.selections.changed.disconnect(this.onSelectionsChanged, this);
-      model.value.changed.disconnect(this.onTextChanged, this);
+      model.sharedModel.changed.disconnect(this.onTextChanged, this);
     }
 
     // Reset completer state.
@@ -104,12 +75,12 @@ export class CompletionHandler implements IDisposable {
 
     // Update the editor and signal connections.
     editor = this._editor = newValue;
+
     if (editor) {
       const model = editor.model;
-
       this._enabled = false;
       model.selections.changed.connect(this.onSelectionsChanged, this);
-      model.value.changed.connect(this.onTextChanged, this);
+      model.sharedModel.changed.connect(this.onTextChanged, this);
       // On initial load, manually check the cursor position.
       this.onSelectionsChanged();
     }
@@ -122,6 +93,17 @@ export class CompletionHandler implements IDisposable {
     return this._isDisposed;
   }
 
+  /**
+   * Enable/disable continuous hinting mode.
+   */
+  set autoCompletion(value: boolean) {
+    this._autoCompletion = value;
+  }
+
+  get autoCompletion(): boolean {
+    return this._autoCompletion;
+  }
+
   /**
    * Dispose of the resources used by the handler.
    */
@@ -161,9 +143,7 @@ export class CompletionHandler implements IDisposable {
     position: CodeEditor.IPosition
   ): Completer.ITextState {
     return {
-      text: editor.model.value.text,
-      lineHeight: editor.lineHeight,
-      charWidth: editor.charWidth,
+      text: editor.model.sharedModel.getSource(),
       line: position.line,
       column: position.column
     };
@@ -180,7 +160,6 @@ export class CompletionHandler implements IDisposable {
     }
 
     const patch = model.createPatch(val);
-
     if (!patch) {
       return;
     }
@@ -210,7 +189,10 @@ export class CompletionHandler implements IDisposable {
 
     const editor = this._editor;
     if (editor) {
-      this._makeRequest(editor.getCursorPosition()).catch(reason => {
+      this._makeRequest(
+        editor.getCursorPosition(),
+        CompletionTriggerKind.Invoked
+      ).catch(reason => {
         console.warn('Invoke request bailed', reason);
       });
     }
@@ -294,7 +276,6 @@ export class CompletionHandler implements IDisposable {
       this._enabled = true;
       host.classList.add(COMPLETER_ENABLED_CLASS);
     }
-
     // Dispatch the cursor change.
     model.handleCursorChange(this.getState(editor, editor.getCursorPosition()));
   }
@@ -302,7 +283,10 @@ export class CompletionHandler implements IDisposable {
   /**
    * Handle a text changed signal from an editor.
    */
-  protected onTextChanged(): void {
+  protected async onTextChanged(
+    str: ISharedText,
+    changed: SourceChange
+  ): Promise<void> {
     const model = this.completer.model;
     if (!model || !this._enabled) {
       return;
@@ -313,6 +297,19 @@ export class CompletionHandler implements IDisposable {
     if (!editor) {
       return;
     }
+    if (
+      this._autoCompletion &&
+      this._reconciliator.shouldShowContinuousHint &&
+      (await this._reconciliator.shouldShowContinuousHint(
+        this.completer.isVisible,
+        changed
+      ))
+    ) {
+      void this._makeRequest(
+        editor.getCursorPosition(),
+        CompletionTriggerKind.TriggerCharacter
+      );
+    }
     const { start, end } = editor.getSelection();
     if (start.column !== end.column || start.line !== end.line) {
       return;
@@ -344,75 +341,41 @@ export class CompletionHandler implements IDisposable {
   /**
    * Make a completion request.
    */
-  private _makeRequest(position: CodeEditor.IPosition): Promise<void> {
+  private _makeRequest(
+    position: CodeEditor.IPosition,
+    trigger: CompletionTriggerKind
+  ): Promise<void> {
     const editor = this.editor;
 
     if (!editor) {
       return Promise.reject(new Error('No active editor'));
     }
 
-    const text = editor.model.value.text;
+    const text = editor.model.sharedModel.getSource();
     const offset = Text.jsIndexToCharIndex(editor.getOffsetAt(position), text);
-    const pending = ++this._pending;
     const state = this.getState(editor, position);
     const request: CompletionHandler.IRequest = { text, offset };
-
-    if (this._isICompletionItemsConnector(this._connector)) {
-      return this._connector
-        .fetch(request)
-        .then(reply => {
-          this._validate(pending, request);
-          if (!reply) {
-            throw new Error(`Invalid request: ${request}`);
-          }
-
-          this._onFetchItemsReply(state, reply);
-        })
-        .catch(_ => {
-          this._onFailure();
-        });
-    }
-
-    return this._connector
-      .fetch(request)
+    return this._reconciliator
+      .fetch(request, trigger)
       .then(reply => {
-        this._validate(pending, request);
         if (!reply) {
-          throw new Error(`Invalid request: ${request}`);
+          return;
+        }
+
+        const model = this._updateModel(state, reply.start, reply.end);
+        if (!model) {
+          return;
         }
 
-        this._onReply(state, reply);
+        if (model.setCompletionItems) {
+          model.setCompletionItems(reply.items);
+        }
       })
-      .catch(_ => {
-        this._onFailure();
+      .catch(p => {
+        /* Fails silently. */
       });
   }
 
-  private _isICompletionItemsConnector(
-    connector:
-      | IDataConnector<
-          CompletionHandler.IReply,
-          void,
-          CompletionHandler.IRequest
-        >
-      | CompletionHandler.ICompletionItemsConnector
-  ): connector is CompletionHandler.ICompletionItemsConnector {
-    return (
-      (connector as CompletionHandler.ICompletionItemsConnector)
-        .responseType === CompletionHandler.ICompletionItemsResponseType
-    );
-  }
-
-  private _validate(pending: number, request: CompletionHandler.IRequest) {
-    if (this.isDisposed) {
-      throw new Error('Handler is disposed');
-    }
-    // If a newer completion request has created a pending request, bail.
-    if (pending !== this._pending) {
-      throw new Error('A newer completion request is pending');
-    }
-  }
-
   /**
    * Updates model with text state and current cursor position.
    */
@@ -438,98 +401,11 @@ export class CompletionHandler implements IDisposable {
     return model;
   }
 
-  /**
-   * Receive a completion reply from the connector.
-   *
-   * @param state - The state of the editor when completion request was made.
-   *
-   * @param reply - The API response returned for a completion request.
-   */
-  private _onReply(
-    state: Completer.ITextState,
-    reply: CompletionHandler.IReply
-  ): void {
-    const model = this._updateModel(state, reply.start, reply.end);
-    if (!model) {
-      return;
-    }
-
-    // Dedupe the matches.
-    const matches: string[] = [];
-    const matchSet = new Set(reply.matches || []);
-
-    if (reply.matches) {
-      matchSet.forEach(match => {
-        matches.push(match);
-      });
-    }
-
-    // Extract the optional type map. The current implementation uses
-    // _jupyter_types_experimental which provide string type names. We make no
-    // assumptions about the names of the types, so other kernels can provide
-    // their own types.
-    // Even though the `metadata` field is required, it has historically not
-    // been used. Defensively check if it exists.
-    const metadata = reply.metadata || {};
-    const types = metadata._jupyter_types_experimental as JSONArray;
-    const typeMap: Completer.TypeMap = {};
-
-    if (types) {
-      types.forEach((item: JSONObject) => {
-        // For some reason the _jupyter_types_experimental list has two entries
-        // for each match, with one having a type of "<unknown>". Discard those
-        // and use undefined to indicate an unknown type.
-        const text = item.text as string;
-        const type = item.type as string;
-
-        if (matchSet.has(text) && type !== '<unknown>') {
-          typeMap[text] = type;
-        }
-      });
-    }
-
-    // Update the options, including the type map.
-    model.setOptions(matches, typeMap);
-  }
-
-  /**
-   * Receive completion items from provider.
-   *
-   * @param state - The state of the editor when completion request was made.
-   *
-   * @param reply - The API response returned for a completion request.
-   */
-  private _onFetchItemsReply(
-    state: Completer.ITextState,
-    reply: CompletionHandler.ICompletionItemsReply
-  ) {
-    const model = this._updateModel(state, reply.start, reply.end);
-    if (!model) {
-      return;
-    }
-    if (model.setCompletionItems) {
-      model.setCompletionItems(reply.items);
-    }
-  }
-
-  /**
-   * If completion request fails, reset model and fail silently.
-   */
-  private _onFailure() {
-    const model = this.completer.model;
-
-    if (model) {
-      model.reset(true);
-    }
-  }
-
-  private _connector:
-    | IDataConnector<CompletionHandler.IReply, void, CompletionHandler.IRequest>
-    | CompletionHandler.ICompletionItemsConnector;
-  private _editor: CodeEditor.IEditor | null = null;
+  private _reconciliator: IProviderReconciliator;
+  private _editor: CodeEditor.IEditor | null | undefined = null;
   private _enabled = false;
-  private _pending = 0;
   private _isDisposed = false;
+  private _autoCompletion = false;
 }
 
 /**
@@ -546,19 +422,9 @@ export namespace CompletionHandler {
     completer: Completer;
 
     /**
-     * The data connector used to populate completion requests.
-     * Use the connector with ICompletionItemsReply for enhanced completions.
-     * #### Notes
-     * The only method of this connector that will ever be called is `fetch`, so
-     * it is acceptable for the other methods to be simple functions that return
-     * rejected promises.
-     *
-     * @deprecated passing `IDataConnector` is deprecated;
-     * pass `CompletionHandler.ICompletionItemsConnector`
+     * The reconciliator that will fetch and merge completions from active providers.
      */
-    connector:
-      | IDataConnector<IReply, void, IRequest>
-      | CompletionHandler.ICompletionItemsConnector;
+    reconciliator: IProviderReconciliator;
   }
 
   /**
@@ -609,64 +475,46 @@ export namespace CompletionHandler {
      * Indicates if the item is deprecated.
      */
     deprecated?: boolean;
+
+    /**
+     * Method allowing to update fields asynchronously.
+     */
+    resolve?: (
+      patch?: Completer.IPatch
+    ) => Promise<CompletionHandler.ICompletionItem>;
   }
 
+  /**
+   * Connector for completion items.
+   *
+   * @deprecated since v4 to add a new source of completions, register a completion provider;
+   *   to customise how completions get merged, provide a custom reconciliator.
+   */
   export type ICompletionItemsConnector = IDataConnector<
     CompletionHandler.ICompletionItemsReply,
     void,
     CompletionHandler.IRequest
-  > &
-    CompletionHandler.ICompleterConnecterResponseType;
+  >;
 
   /**
    * A reply to a completion items fetch request.
    */
-  export interface ICompletionItemsReply {
-    /**
-     * The starting index for the substring being replaced by completion.
-     */
-    start: number;
-    /**
-     * The end index for the substring being replaced by completion.
-     */
-    end: number;
-    /**
-     * A list of completion items.
-     */
-    items: CompletionHandler.ICompletionItems;
-  }
-
-  export interface ICompleterConnecterResponseType {
-    responseType: typeof ICompletionItemsResponseType;
-  }
-
-  export const ICompletionItemsResponseType = 'ICompletionItemsReply' as const;
-
-  /**
-   * @deprecated use `ICompletionItemsReply` instead
-   *
-   * A reply to a completion request.
-   */
-  export interface IReply {
+  export interface ICompletionItemsReply<
+    T extends
+      CompletionHandler.ICompletionItem = CompletionHandler.ICompletionItem
+  > {
     /**
      * The starting index for the substring being replaced by completion.
      */
     start: number;
-
     /**
      * The end index for the substring being replaced by completion.
      */
     end: number;
-
-    /**
-     * A list of matching completion strings.
-     */
-    matches: ReadonlyArray<string>;
-
     /**
-     * Any metadata that accompanies the completion reply.
+     * A list of completion items. default to CompletionHandler.ICompletionItems
      */
-    metadata: ReadonlyJSONObject;
+    items: Array<T>;
   }
 
   /**
@@ -688,11 +536,9 @@ export namespace CompletionHandler {
    * A namespace for completion handler messages.
    */
   export namespace Msg {
-    /* tslint:disable */
     /**
      * A singleton `'invoke-request'` message.
      */
     export const InvokeRequest = new Message('invoke-request');
-    /* tslint:enable */
   }
 }
diff --git a/packages/completer/src/index.ts b/packages/completer/src/index.ts
index fb5852e1342a..5efae102699d 100644
--- a/packages/completer/src/index.ts
+++ b/packages/completer/src/index.ts
@@ -6,10 +6,10 @@
  */
 
 export * from './handler';
-export * from './kernelconnector';
-export * from './contextconnector';
-export * from './connector';
 export * from './model';
 export * from './widget';
-
 export * from './tokens';
+export * from './manager';
+export * from './reconciliator';
+export * from './default/contextprovider';
+export * from './default/kernelprovider';
diff --git a/packages/completer/src/kernelconnector.ts b/packages/completer/src/kernelconnector.ts
deleted file mode 100644
index 059cd5e4169b..000000000000
--- a/packages/completer/src/kernelconnector.ts
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { KernelMessage, Session } from '@jupyterlab/services';
-import { DataConnector } from '@jupyterlab/statedb';
-import { CompletionHandler } from './handler';
-
-/**
- * A kernel connector for completion handlers.
- */
-export class KernelConnector extends DataConnector<
-  CompletionHandler.IReply,
-  void,
-  CompletionHandler.IRequest
-> {
-  /**
-   * Create a new kernel connector for completion requests.
-   *
-   * @param options - The instantiation options for the kernel connector.
-   */
-  constructor(options: KernelConnector.IOptions) {
-    super();
-    this._session = options.session;
-  }
-
-  /**
-   * Fetch completion requests.
-   *
-   * @param request - The completion request text and details.
-   */
-  async fetch(
-    request: CompletionHandler.IRequest
-  ): Promise<CompletionHandler.IReply> {
-    const kernel = this._session?.kernel;
-
-    if (!kernel) {
-      throw new Error('No kernel for completion request.');
-    }
-
-    const contents: KernelMessage.ICompleteRequestMsg['content'] = {
-      code: request.text,
-      cursor_pos: request.offset
-    };
-
-    const msg = await kernel.requestComplete(contents);
-    const response = msg.content;
-
-    if (response.status !== 'ok') {
-      throw new Error('Completion fetch failed to return successfully.');
-    }
-
-    return {
-      start: response.cursor_start,
-      end: response.cursor_end,
-      matches: response.matches,
-      metadata: response.metadata
-    };
-  }
-
-  private _session: Session.ISessionConnection | null;
-}
-
-/**
- * A namespace for kernel connector statics.
- */
-export namespace KernelConnector {
-  /**
-   * The instantiation options for cell completion handlers.
-   */
-  export interface IOptions {
-    /**
-     * The session used by the kernel connector.
-     */
-    session: Session.ISessionConnection | null;
-  }
-}
diff --git a/packages/completer/src/manager.ts b/packages/completer/src/manager.ts
new file mode 100644
index 000000000000..0738e4f2dce6
--- /dev/null
+++ b/packages/completer/src/manager.ts
@@ -0,0 +1,296 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISignal, Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
+import { ProviderReconciliator } from './reconciliator';
+import { CONTEXT_PROVIDER_ID } from './default/contextprovider';
+import { KERNEL_PROVIDER_ID } from './default/kernelprovider';
+import { CompletionHandler } from './handler';
+import { CompleterModel } from './model';
+import {
+  ICompletionContext,
+  ICompletionProvider,
+  ICompletionProviderManager
+} from './tokens';
+import { Completer } from './widget';
+
+/**
+ * A manager for completer provider.
+ */
+export class CompletionProviderManager implements ICompletionProviderManager {
+  /**
+   * Construct a new completer manager.
+   */
+  constructor() {
+    this._providers = new Map();
+    this._panelHandlers = new Map();
+    this._mostRecentContext = new Map();
+    this._activeProvidersChanged = new Signal<ICompletionProviderManager, void>(
+      this
+    );
+  }
+
+  /**
+   * Signal emitted when active providers list is changed.
+   */
+  get activeProvidersChanged(): ISignal<ICompletionProviderManager, void> {
+    return this._activeProvidersChanged;
+  }
+
+  /**
+   * Set provider timeout.
+   *
+   * @param {number} timeout - value of timeout in millisecond.
+   */
+  setTimeout(timeout: number): void {
+    this._timeout = timeout;
+  }
+
+  /**
+   * Enable/disable the document panel.
+   */
+  setShowDocumentationPanel(showDoc: boolean): void {
+    this._panelHandlers.forEach(
+      handler => (handler.completer.showDocsPanel = showDoc)
+    );
+    this._showDoc = showDoc;
+  }
+
+  /**
+   * Enable/disable continuous hinting mode.
+   */
+  setContinuousHinting(value: boolean): void {
+    this._panelHandlers.forEach(handler => (handler.autoCompletion = value));
+    this._autoCompletion = value;
+  }
+
+  /**
+   * Register a completer provider with the manager.
+   *
+   * @param {ICompletionProvider} provider - the provider to be registered.
+   */
+  registerProvider(provider: ICompletionProvider): void {
+    const identifier = provider.identifier;
+    if (this._providers.has(identifier)) {
+      console.warn(
+        `Completion service with identifier ${identifier} is already registered`
+      );
+    } else {
+      this._providers.set(identifier, provider);
+      this._panelHandlers.forEach((handler, id) => {
+        void this.updateCompleter(this._mostRecentContext.get(id)!);
+      });
+    }
+  }
+
+  /**
+   *
+   * Return the map of providers.
+   */
+  getProviders(): Map<string, ICompletionProvider> {
+    return this._providers;
+  }
+
+  /**
+   * Activate the providers by id, the list of ids is populated from user setting.
+   * The non-existing providers will be discarded.
+   *
+   * @param {Array<string>} providerIds - Array of strings with ids of provider
+   */
+  activateProvider(providerIds: Array<string>): void {
+    this._activeProviders = new Set([]);
+    providerIds.forEach(providerId => {
+      if (this._providers.has(providerId)) {
+        this._activeProviders.add(providerId);
+      }
+    });
+    if (this._activeProviders.size === 0) {
+      this._activeProviders.add(KERNEL_PROVIDER_ID);
+      this._activeProviders.add(CONTEXT_PROVIDER_ID);
+    }
+    this._activeProvidersChanged.emit();
+  }
+
+  /**
+   * Create or update completer handler of a widget with new context.
+   *
+   * @param newCompleterContext - The completion context.
+   */
+  async updateCompleter(
+    newCompleterContext: ICompletionContext
+  ): Promise<void> {
+    const { widget, editor, sanitizer } = newCompleterContext;
+    const id = widget.id;
+    const handler = this._panelHandlers.get(id);
+
+    const firstProvider = [...this._activeProviders][0];
+    const provider = this._providers.get(firstProvider);
+
+    let renderer =
+      provider?.renderer ?? Completer.getDefaultRenderer(sanitizer);
+    const modelFactory = provider?.modelFactory;
+    let model: Completer.IModel;
+    if (modelFactory) {
+      model = await modelFactory.call(provider, newCompleterContext);
+    } else {
+      model = new CompleterModel();
+    }
+
+    this._mostRecentContext.set(widget.id, newCompleterContext);
+
+    const options = {
+      model,
+      renderer,
+      sanitizer,
+      showDoc: this._showDoc
+    };
+    if (!handler) {
+      // Create a new handler.
+      const handler = await this._generateHandler(newCompleterContext, options);
+      this._panelHandlers.set(widget.id, handler);
+      widget.disposed.connect(old => {
+        this.disposeHandler(old.id, handler);
+        this._mostRecentContext.delete(id);
+      });
+    } else {
+      // Update existing completer.
+      const completer = handler.completer;
+      completer.model?.dispose();
+      completer.model = options.model;
+      completer.renderer = options.renderer;
+      completer.showDocsPanel = options.showDoc;
+
+      // Update other handler attributes.
+      handler.autoCompletion = this._autoCompletion;
+
+      if (editor) {
+        handler.editor = editor;
+        handler.reconciliator = await this.generateReconciliator(
+          newCompleterContext
+        );
+      }
+    }
+  }
+
+  /**
+   * Invoke the completer in the widget with provided id.
+   *
+   * @param id - the id of notebook panel, console panel or code editor.
+   */
+  invoke(id: string): void {
+    const handler = this._panelHandlers.get(id);
+    if (handler) {
+      handler.invoke();
+    }
+  }
+
+  /**
+   * Activate `select` command in the widget with provided id.
+   *
+   * @param {string} id - the id of notebook panel, console panel or code editor.
+   */
+  select(id: string): void {
+    const handler = this._panelHandlers.get(id);
+    if (handler) {
+      handler.completer.selectActive();
+    }
+  }
+
+  /**
+   * Helper function to generate a `ProviderReconciliator` with provided context.
+   * The `isApplicable` method of provider is used to filter out the providers
+   * which can not be used with provided context.
+   *
+   * @param {ICompletionContext} completerContext - the current completer context
+   */
+  private async generateReconciliator(
+    completerContext: ICompletionContext
+  ): Promise<ProviderReconciliator> {
+    const providers: Array<ICompletionProvider> = [];
+    //TODO Update list with rank
+    for (const id of this._activeProviders) {
+      const provider = this._providers.get(id);
+      if (provider) {
+        providers.push(provider);
+      }
+    }
+    return new ProviderReconciliator({
+      context: completerContext,
+      providers,
+      timeout: this._timeout
+    });
+  }
+
+  /**
+   * Helper to dispose the completer handler on widget disposed event.
+   *
+   * @param {string} id - id of the widget
+   * @param {CompletionHandler} handler - the handler to be disposed.
+   */
+  private disposeHandler(id: string, handler: CompletionHandler) {
+    handler.completer.model?.dispose();
+    handler.completer.dispose();
+    handler.dispose();
+    this._panelHandlers.delete(id);
+  }
+
+  /**
+   * Helper to generate a completer handler from provided context.
+   */
+  private async _generateHandler(
+    completerContext: ICompletionContext,
+    options: Completer.IOptions
+  ): Promise<CompletionHandler> {
+    const completer = new Completer(options);
+    completer.hide();
+    Widget.attach(completer, document.body);
+    const reconciliator = await this.generateReconciliator(completerContext);
+    const handler = new CompletionHandler({
+      completer,
+      reconciliator: reconciliator
+    });
+    handler.editor = completerContext.editor;
+
+    return handler;
+  }
+
+  /**
+   * The completer provider map, the keys are id of provider
+   */
+  private readonly _providers: Map<string, ICompletionProvider>;
+
+  /**
+   * The completer handler map, the keys are id of widget and
+   * values are the completer handler attached to this widget.
+   */
+  private _panelHandlers: Map<string, CompletionHandler>;
+
+  /**
+   * The completer context map, the keys are id of widget and
+   * values are the most recent context objects.
+   */
+  private _mostRecentContext: Map<string, ICompletionContext>;
+
+  /**
+   * The set of activated providers
+   */
+  private _activeProviders = new Set([KERNEL_PROVIDER_ID, CONTEXT_PROVIDER_ID]);
+
+  /**
+   * Timeout value for the completer provider.
+   */
+  private _timeout: number;
+
+  /**
+   * Flag to show or hide the document panel.
+   */
+  private _showDoc: boolean;
+
+  /**
+   * Flag to enable/disable continuous hinting.
+   */
+  private _autoCompletion: boolean;
+
+  private _activeProvidersChanged: Signal<ICompletionProviderManager, void>;
+}
diff --git a/packages/completer/src/model.ts b/packages/completer/src/model.ts
index c23a72118426..8304327dbae5 100644
--- a/packages/completer/src/model.ts
+++ b/packages/completer/src/model.ts
@@ -1,19 +1,21 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  IIterator,
-  iter,
-  IterableOrArrayLike,
-  map,
-  StringExt,
-  toArray
-} from '@lumino/algorithm';
+import { StringExt } from '@lumino/algorithm';
 import { JSONExt, ReadonlyPartialJSONArray } from '@lumino/coreutils';
 import { ISignal, Signal } from '@lumino/signaling';
 import { CompletionHandler } from './handler';
 import { Completer } from './widget';
 
+/**
+ * Escape HTML by native means of the browser.
+ */
+function escapeHTML(text: string) {
+  const node = document.createElement('span');
+  node.textContent = text;
+  return node.innerHTML;
+}
+
 /**
  * An implementation of a completer model.
  */
@@ -25,6 +27,13 @@ export class CompleterModel implements Completer.IModel {
     return this._stateChanged;
   }
 
+  /**
+   * A signal emitted when query string changes (at invocation, or as user types).
+   */
+  get queryChanged(): ISignal<this, Completer.IQueryChange> {
+    return this._queryChanged;
+  }
+
   /**
    * The original completion request details.
    */
@@ -105,6 +114,9 @@ export class CompleterModel implements Completer.IModel {
     const ending = original.text.substring(end);
     query = query.substring(0, query.lastIndexOf(ending));
     this._query = query;
+    this.processedItemsCache = null;
+    this._processedToOriginalItem = null;
+    this._queryChanged.emit({ newValue: this._query, origin: 'editorUpdate' });
     this._stateChanged.emit(undefined);
   }
 
@@ -131,6 +143,9 @@ export class CompleterModel implements Completer.IModel {
   }
   set query(newValue: string) {
     this._query = newValue;
+    this.processedItemsCache = null;
+    this._processedToOriginalItem = null;
+    this._queryChanged.emit({ newValue: this._query, origin: 'setter' });
   }
 
   /**
@@ -167,24 +182,37 @@ export class CompleterModel implements Completer.IModel {
    *
    * #### Notes
    * This is a read-only property.
+   * When overriding it is recommended to cache results in `processedItemsCache`
+   * property which will be automatically nullified when needed.
    */
-  completionItems?(): CompletionHandler.ICompletionItems {
-    let query = this._query;
-    if (query) {
-      return this._markup(query);
+  completionItems(): CompletionHandler.ICompletionItems {
+    if (!this.processedItemsCache) {
+      let query = this._query;
+      if (query) {
+        const markedItems = this._markup(query);
+        this.processedItemsCache = markedItems.map(it => it.processedItem);
+        this._processedToOriginalItem = new WeakMap(
+          markedItems.map(it => [it.processedItem, it.originalItem])
+        );
+      } else {
+        this.processedItemsCache = this._completionItems.map(item => {
+          return this._escapeItemLabel(item);
+        });
+        this._processedToOriginalItem = null;
+      }
     }
-    return this._completionItems;
+    return this.processedItemsCache;
   }
 
   /**
    * Set the list of visible items in the completer menu, and append any
    * new types to KNOWN_TYPES.
    */
-  setCompletionItems?(newValue: CompletionHandler.ICompletionItems): void {
+  setCompletionItems(newValue: CompletionHandler.ICompletionItems): void {
     if (
       JSONExt.deepEqual(
-        (newValue as unknown) as ReadonlyPartialJSONArray,
-        (this._completionItems as unknown) as ReadonlyPartialJSONArray
+        newValue as unknown as ReadonlyPartialJSONArray,
+        this._completionItems as unknown as ReadonlyPartialJSONArray
       )
     ) {
       return;
@@ -193,27 +221,11 @@ export class CompleterModel implements Completer.IModel {
     this._orderedTypes = Private.findOrderedCompletionItemTypes(
       this._completionItems
     );
+    this.processedItemsCache = null;
+    this._processedToOriginalItem = null;
     this._stateChanged.emit(undefined);
   }
 
-  /**
-   * The list of visible items in the completer menu.
-   * @deprecated use `completionItems` instead
-   *
-   * #### Notes
-   * This is a read-only property.
-   */
-  items(): IIterator<Completer.IItem> {
-    return this._filter();
-  }
-
-  /**
-   * The unfiltered list of all available options in a completer menu.
-   */
-  options(): IIterator<string> {
-    return iter(this._options);
-  }
-
   /**
    * The map from identifiers (a.b) to types (function, module, class, instance,
    * etc.).
@@ -245,34 +257,6 @@ export class CompleterModel implements Completer.IModel {
     return this._orderedTypes;
   }
 
-  /**
-   * Set the available options in the completer menu.
-   */
-  setOptions(
-    newValue: IterableOrArrayLike<string>,
-    typeMap?: Completer.TypeMap
-  ) {
-    const values = toArray(newValue || []);
-    const types = typeMap || {};
-
-    if (
-      JSONExt.deepEqual(values, this._options) &&
-      JSONExt.deepEqual(types, this._typeMap)
-    ) {
-      return;
-    }
-    if (values.length) {
-      this._options = values;
-      this._typeMap = types;
-      this._orderedTypes = Private.findOrderedTypes(types);
-    } else {
-      this._options = [];
-      this._typeMap = {};
-      this._orderedTypes = [];
-    }
-    this._stateChanged.emit(undefined);
-  }
-
   /**
    * Handle a cursor change.
    */
@@ -327,7 +311,6 @@ export class CompleterModel implements Completer.IModel {
    */
   handleTextChange(change: Completer.ITextState): void {
     const original = this._original;
-
     // If there is no active completion, return.
     if (!original) {
       return;
@@ -358,7 +341,6 @@ export class CompleterModel implements Completer.IModel {
     const original = this._original;
     const cursor = this._cursor;
     const current = this._current;
-
     if (!original || !cursor || !current) {
       return undefined;
     }
@@ -376,7 +358,7 @@ export class CompleterModel implements Completer.IModel {
    *
    * @param hard - Reset even if a subset match is in progress.
    */
-  reset(hard = false) {
+  reset(hard = false): void {
     // When the completer detects a common subset prefix for all options,
     // it updates the model and sets the model source to that value, triggering
     // a reset. Unless explicitly a hard reset, this should be ignored.
@@ -391,101 +373,208 @@ export class CompleterModel implements Completer.IModel {
    * Check if CompletionItem matches against query.
    * Highlight matching prefix by adding <mark> tags.
    */
-  private _markup(query: string): CompletionHandler.ICompletionItems {
+  private _markup(query: string): {
+    processedItem: CompletionHandler.ICompletionItem;
+    originalItem: CompletionHandler.ICompletionItem;
+  }[] {
     const items = this._completionItems;
     let results: Private.ICompletionMatch[] = [];
-    for (let item of items) {
+    for (const originalItem of items) {
       // See if label matches query string
-      // With ICompletionItems, the label may include parameters, so we exclude them from the matcher.
+      // With ICompletionItems, the label may include parameters,
+      // so we exclude them from the matcher.
       // e.g. Given label `foo(b, a, r)` and query `bar`,
       // don't count parameters, `b`, `a`, and `r` as matches.
-      const index = item.label.indexOf('(');
-      const prefix = index > -1 ? item.label.substring(0, index) : item.label;
-      let match = StringExt.matchSumOfSquares(prefix, query);
+      const index = originalItem.label.indexOf('(');
+      const text =
+        index > -1
+          ? originalItem.label.substring(0, index)
+          : originalItem.label;
+      const match = StringExt.matchSumOfSquares(escapeHTML(text), query);
       // Filter non-matching items.
       if (match) {
         // Highlight label text if there's a match
         let marked = StringExt.highlight(
-          item.label,
+          escapeHTML(originalItem.label),
           match.indices,
           Private.mark
         );
+        // Use `Object.assign` to evaluate getters.
+        const highlightedItem = Object.assign({}, originalItem);
+        highlightedItem.label = marked.join('');
+        highlightedItem.insertText =
+          originalItem.insertText ?? originalItem.label;
         results.push({
-          ...item,
-          // Allow for lazily retrieved documentation (with a getter)
-          documentation: item.documentation,
-          label: marked.join(''),
-          // If no insertText is present, preserve original label value
-          // by setting it as the insertText.
-          insertText: item.insertText ? item.insertText : item.label,
-          score: match.score
+          item: highlightedItem,
+          score: match.score,
+          originalItem
         });
       }
     }
-    results.sort(Private.scoreCmp2);
-
-    // Delete the extra score attribute to not leak implementation details
-    // to JavaScript callers.
-    results.forEach(x => {
-      delete (x as any).score;
-    });
+    results.sort(Private.scoreCmp);
 
-    return results;
+    // Extract only the item (dropping the extra score attribute to not leak
+    // implementation details to JavaScript callers.
+    return results.map(match => ({
+      processedItem: match.item,
+      originalItem: match.originalItem
+    }));
   }
 
   /**
-   * Apply the query to the complete options list to return the matching subset.
+   * Lazy load missing data of an item.
+   * @param indexOrValue - the item or its index
+   * @remarks
+   * Resolving item by index will be deprecated in
+   * the JupyterLab 5.0 and removed in JupyterLab 6.0.
+   *
+   * @return Return `undefined` if the completion item with `activeIndex` index can not be found.
+   *  Return a promise of `null` if another `resolveItem` is called. Otherwise return the
+   * promise of resolved completion item.
    */
-  private _filter(): IIterator<Completer.IItem> {
-    const options = this._options || [];
-    const query = this._query;
-    if (!query) {
-      return map(options, option => ({ raw: option, text: option }));
+  resolveItem(
+    indexOrValue: number | CompletionHandler.ICompletionItem
+  ): Promise<CompletionHandler.ICompletionItem | null> | undefined {
+    let processedItem: CompletionHandler.ICompletionItem | undefined;
+
+    if (typeof indexOrValue === 'number') {
+      const completionItems = this.completionItems();
+      if (!completionItems || !completionItems[indexOrValue]) {
+        return undefined;
+      }
+      processedItem = completionItems[indexOrValue];
+    } else {
+      processedItem = indexOrValue;
     }
-    const results: Private.IMatch[] = [];
-    for (const option of options) {
-      const match = StringExt.matchSumOfSquares(option, query);
-      if (match) {
-        const marked = StringExt.highlight(option, match.indices, Private.mark);
-        results.push({
-          raw: option,
-          score: match.score,
-          text: marked.join('')
-        });
+    if (!processedItem) {
+      return undefined;
+    }
+
+    let originalItem: CompletionHandler.ICompletionItem | undefined;
+    if (this._processedToOriginalItem) {
+      originalItem = this._processedToOriginalItem.get(processedItem);
+    } else {
+      originalItem = processedItem;
+    }
+    if (!originalItem) {
+      return undefined;
+    }
+    return this._resolveItemByValue(originalItem);
+  }
+
+  /**
+   * Lazy load missing data of a completion item.
+   *
+   * @param  completionItem - the item to be resolved
+   * @return See `resolveItem` method
+   */
+  private _resolveItemByValue(
+    completionItem: CompletionHandler.ICompletionItem
+  ): Promise<CompletionHandler.ICompletionItem | null> {
+    const current = ++this._resolvingItem;
+    let resolvedItem: Promise<CompletionHandler.ICompletionItem>;
+    if (completionItem.resolve) {
+      let patch: Completer.IPatch | undefined;
+      if (completionItem.insertText) {
+        patch = this.createPatch(completionItem.insertText);
       }
+      resolvedItem = completionItem.resolve(patch);
+    } else {
+      resolvedItem = Promise.resolve(completionItem);
     }
-    return map(results.sort(Private.scoreCmp), result => ({
-      text: result.text,
-      raw: result.raw
-    }));
+    return resolvedItem
+      .then(activeItem => {
+        // Escape the label it in place
+        this._escapeItemLabel(activeItem, true);
+        (
+          Object.keys(activeItem) as Array<
+            keyof CompletionHandler.ICompletionItem
+          >
+        ).forEach(
+          <Key extends keyof CompletionHandler.ICompletionItem>(key: Key) => {
+            completionItem[key] = activeItem[key];
+          }
+        );
+        completionItem.resolve = undefined;
+        if (current !== this._resolvingItem) {
+          return Promise.resolve(null);
+        }
+        return activeItem;
+      })
+      .catch(e => {
+        console.error(e);
+        // Failed to resolve missing data, return the original item.
+        return Promise.resolve(completionItem);
+      });
+  }
+
+  /**
+   * Escape item label, storing the original label and adding `insertText` if needed.
+   * If escaping changes label creates a new item unless `inplace` is true.
+   */
+  private _escapeItemLabel(
+    item: CompletionHandler.ICompletionItem,
+    inplace: boolean = false
+  ): CompletionHandler.ICompletionItem {
+    const escapedLabel = escapeHTML(item.label);
+    // If there was no insert text, use the original (unescaped) label.
+    if (escapedLabel !== item.label) {
+      const newItem = inplace ? item : Object.assign({}, item);
+      newItem.insertText = item.insertText ?? item.label;
+      newItem.label = escapedLabel;
+      return newItem;
+    }
+    return item;
   }
 
   /**
    * Reset the state of the model.
    */
   private _reset(): void {
+    const hadQuery = this._query;
     this._current = null;
     this._cursor = null;
     this._completionItems = [];
-    this._options = [];
     this._original = null;
     this._query = '';
+    this.processedItemsCache = null;
+    this._processedToOriginalItem = null;
     this._subsetMatch = false;
     this._typeMap = {};
     this._orderedTypes = [];
+    if (hadQuery) {
+      this._queryChanged.emit({ newValue: this._query, origin: 'reset' });
+    }
   }
 
+  protected processedItemsCache: CompletionHandler.ICompletionItems | null =
+    null;
   private _current: Completer.ITextState | null = null;
   private _cursor: Completer.ICursorSpan | null = null;
   private _isDisposed = false;
   private _completionItems: CompletionHandler.ICompletionItems = [];
-  private _options: string[] = [];
   private _original: Completer.ITextState | null = null;
   private _query = '';
   private _subsetMatch = false;
   private _typeMap: Completer.TypeMap = {};
   private _orderedTypes: string[] = [];
   private _stateChanged = new Signal<this, void>(this);
+  private _queryChanged = new Signal<this, Completer.IQueryChange>(this);
+
+  /**
+   * The weak map between a processed completion item with the original item.
+   * It's used to keep track of original completion item in case of displaying
+   * the completer with query.
+   */
+  private _processedToOriginalItem: WeakMap<
+    CompletionHandler.ICompletionItem,
+    CompletionHandler.ICompletionItem
+  > | null = null;
+
+  /**
+   * A counter to cancel ongoing `resolveItem` call.
+   */
+  private _resolvingItem = 0;
 }
 
 /**
@@ -535,30 +624,24 @@ namespace Private {
   }
 
   /**
-   * A sort comparison function for item match scores.
-   *
-   * #### Notes
-   * This orders the items first based on score (lower is better), then
-   * by locale order of the item text.
+   * A filtered completion matching result.
    */
-  export function scoreCmp(a: IMatch, b: IMatch): number {
-    const delta = a.score - b.score;
-    if (delta !== 0) {
-      return delta;
-    }
-    return a.raw.localeCompare(b.raw);
-  }
-
-  /**
-   * A filtered completion menu matching result.
-   */
-  export interface ICompletionMatch extends CompletionHandler.ICompletionItem {
+  export interface ICompletionMatch {
+    /**
+     * The completion item data.
+     */
+    item: CompletionHandler.ICompletionItem;
     /**
      * A score which indicates the strength of the match.
      *
      * A lower score is better. Zero is the best possible score.
      */
     score: number;
+
+    /**
+     * The original completion item data.
+     */
+    originalItem: CompletionHandler.ICompletionItem;
   }
 
   /**
@@ -568,12 +651,12 @@ namespace Private {
    * This orders the items first based on score (lower is better), then
    * by locale order of the item text.
    */
-  export function scoreCmp2(a: ICompletionMatch, b: ICompletionMatch): number {
+  export function scoreCmp(a: ICompletionMatch, b: ICompletionMatch): number {
     const delta = a.score - b.score;
     if (delta !== 0) {
       return delta;
     }
-    return a.insertText?.localeCompare(b.insertText ?? '') ?? 0;
+    return a.item.insertText?.localeCompare(b.item.insertText ?? '') ?? 0;
   }
 
   /**
diff --git a/packages/completer/src/reconciliator.ts b/packages/completer/src/reconciliator.ts
new file mode 100644
index 000000000000..e2d2852703f0
--- /dev/null
+++ b/packages/completer/src/reconciliator.ts
@@ -0,0 +1,262 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { SourceChange } from '@jupyter/ydoc';
+import { CompletionHandler } from './handler';
+import {
+  CompletionTriggerKind,
+  ICompletionContext,
+  ICompletionProvider,
+  IProviderReconciliator
+} from './tokens';
+import { Completer } from './widget';
+
+/**
+ * The reconciliator which is used to fetch and merge responses from multiple completion providers.
+ */
+export class ProviderReconciliator implements IProviderReconciliator {
+  /**
+   * Creates an instance of ProviderReconciliator.
+   */
+  constructor(options: ProviderReconciliator.IOptions) {
+    this._providers = options.providers;
+    this._context = options.context;
+    this._timeout = options.timeout;
+  }
+
+  /**
+   * Check for the providers which are applicable with the current context
+   *
+   * @return  List of applicable providers
+   */
+  protected async applicableProviders(): Promise<Array<ICompletionProvider>> {
+    const isApplicablePromises = this._providers.map(p =>
+      p.isApplicable(this._context)
+    );
+    const applicableProviders = await Promise.all(isApplicablePromises);
+    return this._providers.filter((_, idx) => applicableProviders[idx]);
+  }
+
+  /**
+   * Fetch response from multiple providers, If a provider can not return
+   * the response for a completer request before timeout,
+   * the result of this provider will be ignored.
+   *
+   * @param {CompletionHandler.IRequest} request - The completion request.
+   */
+  async fetch(
+    request: CompletionHandler.IRequest,
+    trigger?: CompletionTriggerKind
+  ): Promise<CompletionHandler.ICompletionItemsReply | null> {
+    const current = ++this._fetching;
+    let promises: Promise<CompletionHandler.ICompletionItemsReply | null>[] =
+      [];
+    const applicableProviders = await this.applicableProviders();
+    for (const provider of applicableProviders) {
+      let promise: Promise<CompletionHandler.ICompletionItemsReply | null>;
+      promise = provider.fetch(request, this._context, trigger).then(reply => {
+        if (current !== this._fetching) {
+          return Promise.reject(void 0);
+        }
+        const items = reply.items.map(el => ({
+          ...el,
+          resolve: this._resolveFactory(provider, el)
+        }));
+        return { ...reply, items };
+      });
+
+      const timeoutPromise =
+        new Promise<CompletionHandler.ICompletionItemsReply | null>(resolve => {
+          return setTimeout(() => resolve(null), this._timeout);
+        });
+      promise = Promise.race([promise, timeoutPromise]);
+      // Wrap promise and return error in case of failure.
+      promises.push(promise.catch(p => p));
+    }
+    // TODO: maybe use `Promise.allSettled` once library is at es2020 instead of adding a catch.
+    const combinedPromise = Promise.all(promises);
+    return this._mergeCompletions(combinedPromise);
+  }
+
+  /**
+   * Check if completer should make request to fetch completion responses
+   * on user typing. If the provider with highest rank does not have
+   * `shouldShowContinuousHint` method, a default one will be used.
+   *
+   * @param completerIsVisible - The visible status of completer widget.
+   * @param changed - CodeMirror changed argument.
+   */
+  async shouldShowContinuousHint(
+    completerIsVisible: boolean,
+    changed: SourceChange
+  ): Promise<boolean> {
+    const applicableProviders = await this.applicableProviders();
+    if (applicableProviders.length === 0) {
+      return false;
+    }
+    if (applicableProviders[0].shouldShowContinuousHint) {
+      return applicableProviders[0].shouldShowContinuousHint(
+        completerIsVisible,
+        changed,
+        this._context
+      );
+    }
+    return this._defaultShouldShowContinuousHint(completerIsVisible, changed);
+  }
+
+  private _alignPrefixes(
+    replies: CompletionHandler.ICompletionItemsReply[],
+    minStart: number,
+    maxStart: number
+  ): CompletionHandler.ICompletionItemsReply[] {
+    if (minStart != maxStart) {
+      const editor = this._context.editor;
+      if (!editor) {
+        return replies;
+      }
+      const cursor = editor.getCursorPosition();
+      const line = editor.getLine(cursor.line);
+      if (!line) {
+        return replies;
+      }
+
+      return replies.map(reply => {
+        // No prefix to strip, return as-is.
+        if (reply.start == maxStart) {
+          return reply;
+        }
+        let prefix = line.substring(reply.start, maxStart);
+        return {
+          ...reply,
+          items: reply.items.map(item => {
+            let insertText = item.insertText || item.label;
+            item.insertText = insertText.startsWith(prefix)
+              ? insertText.slice(prefix.length)
+              : insertText;
+            return item;
+          })
+        };
+      });
+    }
+    return replies;
+  }
+
+  private async _mergeCompletions(
+    promises: Promise<(CompletionHandler.ICompletionItemsReply | null)[]>
+  ): Promise<CompletionHandler.ICompletionItemsReply | null> {
+    let replies = (await promises).filter(reply => {
+      // Ignore it errors out.
+      if (!reply || reply instanceof Error) {
+        return false;
+      }
+      // Ignore if no matches.
+      if (!reply.items.length) {
+        return false;
+      }
+      // Otherwise keep.
+      return true;
+    }) as CompletionHandler.ICompletionItemsReply[];
+
+    // Fast path for a single reply or no replies.
+    if (replies.length == 0) {
+      return null;
+    } else if (replies.length == 1) {
+      return replies[0];
+    }
+
+    const minEnd = Math.min(...replies.map(reply => reply.end));
+
+    // If any of the replies uses a wider range, we need to align them
+    // so that all responses use the same range.
+    const starts = replies.map(reply => reply.start);
+    const minStart = Math.min(...starts);
+    const maxStart = Math.max(...starts);
+
+    replies = this._alignPrefixes(replies, minStart, maxStart);
+
+    const insertTextSet = new Set<string>();
+    const mergedItems = new Array<CompletionHandler.ICompletionItem>();
+
+    for (const reply of replies) {
+      reply.items.forEach(item => {
+        // IPython returns 'import' and 'import '; while the latter is more useful,
+        // user should not see two suggestions with identical labels and nearly-identical
+        // behaviour as they could not distinguish the two either way.
+        let text = (item.insertText || item.label).trim();
+        if (insertTextSet.has(text)) {
+          return;
+        }
+
+        insertTextSet.add(text);
+        mergedItems.push(item);
+      });
+    }
+    return {
+      start: maxStart,
+      end: minEnd,
+      items: mergedItems
+    };
+  }
+
+  private _defaultShouldShowContinuousHint(
+    completerIsVisible: boolean,
+    changed: SourceChange
+  ): boolean {
+    return (
+      !completerIsVisible &&
+      (changed.sourceChange == null ||
+        changed.sourceChange.some(
+          delta => delta.insert != null && delta.insert.length > 0
+        ))
+    );
+  }
+
+  private _resolveFactory = (
+    provider: ICompletionProvider,
+    el: CompletionHandler.ICompletionItem
+  ) =>
+    provider.resolve
+      ? (patch?: Completer.IPatch) =>
+          provider.resolve!(el, this._context, patch)
+      : undefined;
+
+  /**
+   * List of available providers.
+   */
+  private _providers: Array<ICompletionProvider>;
+
+  /**
+   * Current completer context.
+   */
+  private _context: ICompletionContext;
+
+  /**
+   * Timeout for the fetch request.
+   */
+  private _timeout: number;
+
+  /**
+   * Counter to reject current provider response if a new fetch request is created.
+   */
+  private _fetching = 0;
+}
+
+export namespace ProviderReconciliator {
+  /**
+   * The instantiation options for provider reconciliator.
+   */
+  export interface IOptions {
+    /**
+     * Completion context that will be used in the `fetch` method of provider.
+     */
+    context: ICompletionContext;
+    /**
+     * List of completion providers, assumed to contain at least one provider.
+     */
+    providers: ICompletionProvider[];
+    /**
+     * How long should we wait for each of the providers to resolve `fetch` promise
+     */
+    timeout: number;
+  }
+}
diff --git a/packages/completer/src/tokens.ts b/packages/completer/src/tokens.ts
index 07cb4e118737..bb7240e4b335 100644
--- a/packages/completer/src/tokens.ts
+++ b/packages/completer/src/tokens.ts
@@ -2,69 +2,209 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { IDataConnector } from '@jupyterlab/statedb';
+import { IRenderMime } from '@jupyterlab/rendermime';
+import { Session } from '@jupyterlab/services';
+import { SourceChange } from '@jupyter/ydoc';
 import { Token } from '@lumino/coreutils';
+import { ISignal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import { CompletionHandler } from './handler';
 import { Completer } from './widget';
 
-/* tslint:disable */
 /**
- * The completion manager token.
+ * The type of completion request.
  */
-export const ICompletionManager = new Token<ICompletionManager>(
-  '@jupyterlab/completer:ICompletionManager'
-);
-/* tslint:enable */
+export enum CompletionTriggerKind {
+  Invoked = 1,
+  TriggerCharacter = 2,
+  TriggerForIncompleteCompletions = 3
+}
+
+/**
+ * The context which will be passed to the `fetch` function
+ * of a provider.
+ */
+export interface ICompletionContext {
+  /**
+   * The widget (notebook, console, code editor) which invoked
+   * the completer
+   */
+  widget: Widget;
+
+  /**
+   * The current editor.
+   */
+  editor?: CodeEditor.IEditor | null;
+
+  /**
+   * The session extracted from widget for convenience.
+   */
+  session?: Session.ISessionConnection | null;
+
+  /**
+   * The sanitizer used to sanitize untrusted html inputs.
+   */
+  sanitizer?: IRenderMime.ISanitizer;
+}
 
 /**
- * A manager to register completers with parent widgets.
+ * The interface to implement a completer provider.
  */
-export interface ICompletionManager {
+export interface ICompletionProvider<
+  T extends
+    CompletionHandler.ICompletionItem = CompletionHandler.ICompletionItem
+> {
+  /**
+   * Unique identifier of the provider
+   */
+  readonly identifier: string;
+
+  /**
+   * Rank used to order completion results from different completion providers.
+   *
+   * #### Note: The default providers (CompletionProvider:context and
+   * CompletionProvider:kernel) use a rank of ≈500. If you want to give
+   * priority to your provider, use a rank of 1000 or above.
+   *
+   * The rank is optional for backwards compatibility. If the rank is `undefined`,
+   * it will assign a rank of [1, 499] making the provider available but with a
+   * lower priority.
+   */
+  readonly rank?: number;
+
+  /**
+   * Renderer for provider's completions (optional).
+   */
+  readonly renderer?: Completer.IRenderer | null;
+
+  /**
+   * Is completion provider applicable to specified context?
+   * @param request - the completion request text and details
+   * @param context - additional information about context of completion request
+   */
+  isApplicable(context: ICompletionContext): Promise<boolean>;
+
+  /**
+   * Fetch completion requests.
+   *
+   * @param request - the completion request text and details
+   * @param context - additional information about context of completion request
+   * @param trigger - Who triggered the request (optional).
+   */
+  fetch(
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext,
+    trigger?: CompletionTriggerKind
+  ): Promise<CompletionHandler.ICompletionItemsReply<T>>;
+
+  /**
+   * This method is called to customize the model of a completer widget.
+   * If it is not provided, the default model will be used.
+   *
+   * @param context - additional information about context of completion request
+   * @returns The completer model
+   */
+  modelFactory?(context: ICompletionContext): Promise<Completer.IModel>;
+
   /**
-   * Register a completable object with the completion manager.
+   * Given an incomplete (unresolved) completion item, resolve it by adding
+   * all missing details, such as lazy-fetched documentation.
    *
-   * @returns A completable object whose attributes can be updated as necessary.
+   * @param completionItem - the completion item to resolve
+   * @param context - The context of the completer
+   * @param patch - The text which will be injected if the completion item is
+   * selected.
    */
-  register(
-    completable: ICompletionManager.ICompletable,
-    renderer?: Completer.IRenderer
-  ): ICompletionManager.ICompletableAttributes;
+  resolve?(
+    completionItem: T,
+    context: ICompletionContext,
+    patch?: Completer.IPatch | null
+  ): Promise<T>;
+
+  /**
+   * If users enable `autoCompletion` in setting, this method is
+   * called on text changed event of `CodeMirror` to check if the
+   * completion items should be shown.
+   *
+   * @param  completerIsVisible - Current visibility status of the
+   *  completer widget
+   * @param  changed - changed text.
+   * @param  context - The context of the completer (optional).
+   */
+  shouldShowContinuousHint?(
+    completerIsVisible: boolean,
+    changed: SourceChange,
+    context?: ICompletionContext
+  ): boolean;
 }
 
 /**
- * A namespace for `ICompletionManager` interface specifications.
+ * The exported token used to register new provider.
  */
-export namespace ICompletionManager {
-  /**
-   * The attributes of a completable object that can change and sync at runtime.
-   */
-  export interface ICompletableAttributes {
-    /**
-     * The host editor for the completer.
-     */
-    editor: CodeEditor.IEditor | null;
-
-    /**
-     * The data connector used to populate the completer.
-     * Use the connector with ICompletionItemsReply for enhanced completions.
-     */
-    connector:
-      | IDataConnector<
-          CompletionHandler.IReply,
-          void,
-          CompletionHandler.IRequest
-        >
-      | CompletionHandler.ICompletionItemsConnector;
-  }
-
-  /**
-   * An interface for completer-compatible objects.
-   */
-  export interface ICompletable extends ICompletableAttributes {
-    /**
-     * The parent of the completer; the completer resources dispose with parent.
-     */
-    readonly parent: Widget;
-  }
+export const ICompletionProviderManager = new Token<ICompletionProviderManager>(
+  '@jupyterlab/completer:ICompletionProviderManager',
+  'A service for the completion providers management.'
+);
+
+export interface ICompletionProviderManager {
+  /**
+   * Register a completer provider with the manager.
+   *
+   * @param {ICompletionProvider} provider - the provider to be registered.
+   */
+  registerProvider(provider: ICompletionProvider): void;
+
+  /**
+   * Invoke the completer in the widget with provided id.
+   *
+   * @param {string} id - the id of notebook panel, console panel or code editor.
+   */
+  invoke(id: string): void;
+
+  /**
+   * Activate `select` command in the widget with provided id.
+   *
+   * @param {string} id - the id of notebook panel, console panel or code editor.
+   */
+  select(id: string): void;
+
+  /**
+   * Update completer handler of a widget with new context.
+   *
+   * @param newCompleterContext - The completion context.
+   */
+  updateCompleter(newCompleterContext: ICompletionContext): Promise<void>;
+
+  /**
+   * Signal emitted when active providers list is changed.
+   */
+  activeProvidersChanged: ISignal<ICompletionProviderManager, void>;
+}
+
+export interface IProviderReconciliator {
+  /**
+   * Fetch response from multiple providers, If a provider can not return
+   * the response for a completer request before timeout,
+   * the result of this provider will be ignore.
+   *
+   * @param {CompletionHandler.IRequest} request - The completion request.
+   * @param trigger - Who triggered the request (optional).
+   */
+  fetch(
+    request: CompletionHandler.IRequest,
+    trigger?: CompletionTriggerKind
+  ): Promise<CompletionHandler.ICompletionItemsReply | null>;
+
+  /**
+   * Check if completer should make request to fetch completion responses
+   * on user typing. If the provider with highest rank does not have
+   * `shouldShowContinuousHint` method, a default one will be used.
+   *
+   * @param completerIsVisible - The visible status of completer widget.
+   * @param changed - CodeMirror changed argument.
+   */
+  shouldShowContinuousHint(
+    completerIsVisible: boolean,
+    changed: SourceChange
+  ): Promise<boolean>;
 }
diff --git a/packages/completer/src/widget.ts b/packages/completer/src/widget.ts
index eb2b6ba22d81..504cd415410c 100644
--- a/packages/completer/src/widget.ts
+++ b/packages/completer/src/widget.ts
@@ -1,16 +1,17 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { defaultSanitizer, HoverBox, ISanitizer } from '@jupyterlab/apputils';
+import { Sanitizer } from '@jupyterlab/apputils';
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { LabIcon } from '@jupyterlab/ui-components';
-import { IIterator, IterableOrArrayLike, toArray } from '@lumino/algorithm';
-import { JSONExt, JSONObject } from '@lumino/coreutils';
+import { IRenderMime, renderText } from '@jupyterlab/rendermime';
+import { HoverBox, LabIcon } from '@jupyterlab/ui-components';
+import { JSONObject } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ElementExt } from '@lumino/domutils';
 import { Message } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
+
 import { CompletionHandler } from './handler';
 
 /**
@@ -24,14 +25,14 @@ const ITEM_CLASS = 'jp-Completer-item';
 const ACTIVE_CLASS = 'jp-mod-active';
 
 /**
- * The minimum height of a completer widget.
+ * The class used by item listing which determines the height of the completer.
  */
-const MIN_HEIGHT = 20;
+const LIST_CLASS = 'jp-Completer-list';
 
 /**
- * The maximum height of a completer widget.
+ * Class of the documentation panel.
  */
-const MAX_HEIGHT = 300;
+const DOC_PANEL_CLASS = 'jp-Completer-docpanel';
 
 /**
  * A flag to indicate that event handlers are caught in the capture phase.
@@ -59,18 +60,41 @@ export class Completer extends Widget {
    */
   constructor(options: Completer.IOptions) {
     super({ node: document.createElement('div') });
-    this.sanitizer = options.sanitizer ?? defaultSanitizer;
-    this._renderer =
-      options.renderer ?? Completer.getDefaultRenderer(this.sanitizer);
-    this.model = options.model || null;
-    this.editor = options.editor || null;
+    this.sanitizer = options.sanitizer ?? new Sanitizer();
+    this._defaultRenderer = Completer.getDefaultRenderer(this.sanitizer);
+    this._renderer = options.renderer ?? this._defaultRenderer;
+    this._docPanel = this._createDocPanelNode();
+    this.model = options.model ?? null;
+    this.editor = options.editor ?? null;
     this.addClass('jp-Completer');
+    this._updateConstraints();
+  }
+
+  /**
+   * Cache style constraints from CSS.
+   */
+  protected _updateConstraints() {
+    const tempNode = document.createElement('div');
+    tempNode.classList.add(LIST_CLASS);
+    tempNode.style.visibility = 'hidden';
+    tempNode.style.overflowY = 'scroll';
+    document.body.appendChild(tempNode);
+    const computedStyle = window.getComputedStyle(tempNode);
+    this._maxHeight = parseInt(computedStyle.maxHeight, 10);
+    this._minHeight = parseInt(computedStyle.minHeight, 10);
+    this._scrollbarWidth = tempNode.offsetWidth - tempNode.clientWidth;
+    document.body.removeChild(tempNode);
+    const tempDocPanel = this._createDocPanelNode();
+    this._docPanelWidth = Private.measureSize(
+      tempDocPanel,
+      'inline-block'
+    ).width;
   }
 
   /**
-   * The sanitizer used to sanitize untrusted html inputs.
+   * The sanitizer used to sanitize untrusted HTML inputs.
    */
-  readonly sanitizer: ISanitizer;
+  readonly sanitizer: IRenderMime.ISanitizer;
 
   /**
    * The active index.
@@ -82,10 +106,10 @@ export class Completer extends Widget {
   /**
    * The editor used by the completion widget.
    */
-  get editor(): CodeEditor.IEditor | null {
+  get editor(): CodeEditor.IEditor | null | undefined {
     return this._editor;
   }
-  set editor(newValue: CodeEditor.IEditor | null) {
+  set editor(newValue: CodeEditor.IEditor | null | undefined) {
     this._editor = newValue;
   }
 
@@ -126,17 +150,41 @@ export class Completer extends Widget {
     }
     if (this._model) {
       this._model.stateChanged.disconnect(this.onModelStateChanged, this);
+      this._model.queryChanged.disconnect(this.onModelQueryChanged, this);
     }
     this._model = model;
     if (this._model) {
       this._model.stateChanged.connect(this.onModelStateChanged, this);
+      this._model.queryChanged.connect(this.onModelQueryChanged, this);
     }
   }
 
+  /**
+   * The completer used by the completer widget.
+   */
+  get renderer(): Completer.IRenderer {
+    return this._renderer;
+  }
+  set renderer(renderer: Completer.IRenderer) {
+    this._renderer = renderer;
+  }
+
+  /**
+   * Enable/disable the document panel.
+   */
+  set showDocsPanel(showDoc: boolean) {
+    this._showDoc = showDoc;
+  }
+
+  get showDocsPanel(): boolean {
+    return this._showDoc;
+  }
+
   /**
    * Dispose of the resources held by the completer widget.
    */
-  dispose() {
+  dispose(): void {
+    this._sizeCache = undefined;
     this._model = null;
     super.dispose();
   }
@@ -179,6 +227,10 @@ export class Completer extends Widget {
     if (this._model) {
       this._model.reset(true);
     }
+    this._docPanel.style.display = 'none';
+    // Clear size cache.
+    this._sizeCache = undefined;
+    this.node.scrollTop = 0;
   }
 
   /**
@@ -223,53 +275,82 @@ export class Completer extends Widget {
     }
   }
 
+  /**
+   * Handle model query changes.
+   */
+  protected onModelQueryChanged(
+    model: Completer.IModel,
+    queryChange: Completer.IQueryChange
+  ): void {
+    // If query was changed by the user typing, the filtered down items
+    // may no longer reach/exceed the maxHeight of the completer widget,
+    // hence size needs to be recalculated.
+    if (this._sizeCache && queryChange.origin === 'editorUpdate') {
+      const newItems = model.completionItems();
+      const oldItems = this._sizeCache.items;
+      // Only reset size if the number of items changed, or the longest item changed.
+      const oldWidest = oldItems[this._findWidestItemIndex(oldItems)];
+      const newWidest = newItems[this._findWidestItemIndex(newItems)];
+      const heuristic = this._getPreferredItemWidthHeuristic();
+      if (
+        newItems.length !== this._sizeCache.items.length ||
+        heuristic(oldWidest) !== heuristic(newWidest)
+      ) {
+        this._sizeCache = undefined;
+      }
+    }
+  }
+
   /**
    * Handle `update-request` messages.
    */
   protected onUpdateRequest(msg: Message): void {
     const model = this._model;
-
     if (!model) {
       return;
     }
 
-    if (this._resetFlag) {
-      this._resetFlag = false;
+    // If this is the first time the current completer session has loaded,
+    // populate any initial subset match. This is being done before node
+    // gets rendered to avoid rendering it twice.
+    if (!model.query) {
+      this._populateSubset();
+    }
+
+    let items = model.completionItems();
+
+    // If there are no items, reset and bail.
+    if (!items.length) {
       if (!this.isHidden) {
+        this.reset();
         this.hide();
         this._visibilityChanged.emit(undefined);
       }
       return;
     }
 
-    let node: HTMLElement | null = null;
-    let completionItemList = model.completionItems && model.completionItems();
-    if (completionItemList && completionItemList.length) {
-      node = this._createCompletionItemNode(model, completionItemList);
-    } else {
-      node = this._createIItemNode(model);
-    }
-    if (!node) {
-      return;
-    }
+    // Update constraints before any DOM modifications
+    this._updateConstraints();
+
+    // Do not trigger any geometry updates from async code when in lock.
+    this._geometryLock = true;
 
-    let active = node.querySelectorAll(`.${ITEM_CLASS}`)[this._activeIndex];
+    const node = this._createCompleterNode(model, items);
+
+    let active = node.querySelectorAll(`.${ITEM_CLASS}`)[
+      this._activeIndex
+    ] as HTMLElement;
     active.classList.add(ACTIVE_CLASS);
 
-    // Add the documentation panel
-    let docPanel = document.createElement('div');
-    docPanel.className = 'jp-Completer-docpanel';
-    node.appendChild(docPanel);
-    this._updateDocPanel();
+    const resolvedItem = this.model?.resolveItem(items[this._activeIndex]);
 
-    // If this is the first time the current completer session has loaded,
-    // populate any initial subset match.
-    if (!model.query) {
-      const populated = this._populateSubset();
-      if (populated) {
-        this.update();
-        return;
-      }
+    // Add the documentation panel
+    if (this._showDoc) {
+      this._docPanel.innerText = '';
+      node.appendChild(this._docPanel);
+      this._docPanelExpanded = false;
+      this._docPanel.style.display = 'none';
+      this._updateDocPanel(resolvedItem, active);
     }
 
     if (this.isHidden) {
@@ -279,22 +360,33 @@ export class Completer extends Widget {
     } else {
       this._setGeometry();
     }
+    this._geometryLock = false;
+  }
+
+  /**
+   * Get cached dimensions of the completer box.
+   */
+  protected get sizeCache(): Completer.IDimensions | undefined {
+    if (!this._sizeCache) {
+      return;
+    }
+    return {
+      width: this._sizeCache.width + this._sizeCache.docPanelWidth,
+      height: Math.max(this._sizeCache.height, this._sizeCache.docPanelHeight)
+    };
+  }
+
+  private _createDocPanelNode() {
+    const docPanel = document.createElement('div');
+    docPanel.className = DOC_PANEL_CLASS;
+    return docPanel;
   }
 
-  private _createCompletionItemNode(
+  private _createCompleterNode(
     model: Completer.IModel,
     items: CompletionHandler.ICompletionItems
-  ): HTMLElement | null {
-    // If there are no items, reset and bail.
-    if (!items.length) {
-      this._resetFlag = true;
-      this.reset();
-      if (!this.isHidden) {
-        this.hide();
-        this._visibilityChanged.emit(undefined);
-      }
-      return null;
-    }
+  ): HTMLElement {
+    const current = ++this._renderCounter;
 
     // Clear the node.
     let node = this.node;
@@ -306,66 +398,137 @@ export class Completer extends Widget {
 
     // Populate the completer items.
     let ul = document.createElement('ul');
-    ul.className = 'jp-Completer-list';
-    for (let item of items) {
-      if (!this._renderer.createCompletionItemNode) {
-        return null;
-      }
-      let li = this._renderer.createCompletionItemNode(item, orderedTypes);
-      ul.appendChild(li);
-    }
-    node.appendChild(ul);
-    return node;
-  }
+    ul.className = LIST_CLASS;
 
-  private _createIItemNode(model: Completer.IModel): HTMLElement | null {
-    const items = toArray(model.items());
+    // Add first N items to fill the first "page" assuming that the completer
+    // would reach its maximum allowed height.
+    const first = this._renderer.createCompletionItemNode(
+      items[0],
+      orderedTypes
+    );
+    const renderedItems = [first];
 
-    // If there are no items, reset and bail.
-    if (!items || !items.length) {
-      this._resetFlag = true;
-      this.reset();
-      if (!this.isHidden) {
-        this.hide();
-        this._visibilityChanged.emit(undefined);
-      }
-      return null;
+    const firstItemSize = Private.measureSize(first, 'inline-grid');
+    const pageSize = Math.max(
+      Math.ceil(this._maxHeight / firstItemSize.height),
+      5
+    );
+    // We add one item in case if height heuristic is inaccurate.
+    const toRenderImmediately = Math.min(pageSize + 1, items.length);
+
+    const start = performance.now();
+    for (let i = 1; i < toRenderImmediately; i++) {
+      const li = this._renderer.createCompletionItemNode(
+        items[i],
+        orderedTypes
+      );
+      renderedItems.push(li);
     }
 
-    // If there is only one option, signal and bail.
-    // We don't test the filtered `items`, as that
-    // is too aggressive of completer behavior, it can
-    // lead to double typing of an option.
-    const options = toArray(model.options());
-    if (options.length === 1) {
-      this._selected.emit(options[0]);
-      this.reset();
-      return null;
+    for (const li of renderedItems) {
+      ul.appendChild(li);
     }
 
-    // Clear the node.
-    const node = this.node;
-    node.textContent = '';
+    // Pre-calculate size:
+    //  - height will equal first element height times number of items,
+    //    or maximum allowed height if there are more items than fit on a page,
+    //  - width will be estimated from the widest item.
+    const widestItemIndex = this._findWidestItemIndex(items);
+    const widestItem =
+      widestItemIndex < renderedItems.length
+        ? renderedItems[widestItemIndex]
+        : this._renderer.createCompletionItemNode(
+            items[widestItemIndex],
+            orderedTypes
+          );
+
+    // The node needs to be cloned to avoid side-effect of detaching it.
+    const widestItemSize = Private.measureSize(
+      widestItem.cloneNode(true) as HTMLElement,
+      'inline-grid'
+    );
 
-    // Compute an ordered list of all the types in the typeMap, this is computed
-    // once by the model each time new data arrives for efficiency.
-    const orderedTypes = model.orderedTypes();
+    this._sizeCache = {
+      height: Math.min(this._maxHeight, firstItemSize.height * items.length),
+      width: widestItemSize.width + this._scrollbarWidth,
+      items: items,
+      docPanelWidth: 0,
+      docPanelHeight: 0
+    };
 
-    // Populate the completer items.
-    let ul = document.createElement('ul');
-    ul.className = 'jp-Completer-list';
-    for (const item of items) {
-      const li = this._renderer.createItemNode(
-        item!,
-        model.typeMap(),
-        orderedTypes
-      );
-      ul.appendChild(li);
+    if (toRenderImmediately < items.length) {
+      // Render remaining items on idle in subsequent animation frames,
+      // in chunks of size such that each frame would take about 16ms
+      // allowing for 4ms of overhead, but keep the chunks no smaller
+      // than 5 items at a time.
+      const timePerItem = (performance.now() - start) / toRenderImmediately;
+
+      const chunkSize = Math.max(5, Math.floor(12 / timePerItem));
+
+      let alreadyRendered = toRenderImmediately;
+      let previousChunkFinal = renderedItems[renderedItems.length - 1];
+
+      const renderChunk = () => {
+        if (alreadyRendered >= items.length) {
+          return;
+        }
+        // Add a filler so that the list with partially rendered items has the total
+        // height equal to the (predicted) final height to avoid scrollbar jitter.
+        const predictedMissingHeight =
+          firstItemSize.height * (items.length - alreadyRendered);
+        previousChunkFinal.style.marginBottom = `${predictedMissingHeight}px`;
+
+        requestAnimationFrame(() => {
+          if (current != this._renderCounter) {
+            // Bail if rendering afresh was requested in the meantime.
+            return;
+          }
+          previousChunkFinal.style.marginBottom = '';
+          const limit = Math.min(items.length, alreadyRendered + chunkSize);
+          for (let i = alreadyRendered; i < limit; i++) {
+            const li = this._renderer.createCompletionItemNode(
+              items[i],
+              orderedTypes
+            );
+            ul.appendChild(li);
+            previousChunkFinal = li;
+          }
+          alreadyRendered = limit;
+
+          renderChunk();
+        });
+      };
+      renderChunk();
     }
+
     node.appendChild(ul);
     return node;
   }
 
+  /**
+   * Use preferred heuristic to find the index of the widest item.
+   */
+  private _findWidestItemIndex(
+    items: CompletionHandler.ICompletionItems
+  ): number {
+    const widthHeuristic = this._getPreferredItemWidthHeuristic();
+
+    const widthHeuristics = items.map(widthHeuristic);
+    return widthHeuristics.indexOf(Math.max(...widthHeuristics));
+  }
+
+  /**
+   * Get item width heuristic function from renderer if available,
+   * or the default one otherwise.
+   */
+  private _getPreferredItemWidthHeuristic(): (
+    item: CompletionHandler.ICompletionItem
+  ) => number {
+    return this._renderer.itemWidthHeuristic
+      ? this._renderer.itemWidthHeuristic.bind(this._renderer)
+      : this._defaultRenderer.itemWidthHeuristic.bind(this._defaultRenderer);
+  }
+
   /**
    * Cycle through the available completer items.
    *
@@ -377,40 +540,42 @@ export class Completer extends Widget {
   private _cycle(direction: Private.scrollType): void {
     const items = this.node.querySelectorAll(`.${ITEM_CLASS}`);
     const index = this._activeIndex;
+    const last = items.length - 1;
     let active = this.node.querySelector(`.${ACTIVE_CLASS}`) as HTMLElement;
     active.classList.remove(ACTIVE_CLASS);
 
-    if (direction === 'up') {
-      this._activeIndex = index === 0 ? items.length - 1 : index - 1;
-    } else if (direction === 'down') {
-      this._activeIndex = index < items.length - 1 ? index + 1 : 0;
-    } else {
-      // Measure the number of items on a page.
-      const boxHeight = this.node.getBoundingClientRect().height;
-      const itemHeight = active.getBoundingClientRect().height;
-      const pageLength = Math.floor(boxHeight / itemHeight);
-
-      // Update the index
-      if (direction === 'pageUp') {
-        this._activeIndex = index - pageLength;
-      } else {
-        this._activeIndex = index + pageLength;
+    switch (direction) {
+      case 'up':
+        this._activeIndex = index === 0 ? last : index - 1;
+        break;
+      case 'down':
+        this._activeIndex = index < last ? index + 1 : 0;
+        break;
+      case 'pageUp':
+      case 'pageDown': {
+        // Measure the number of items on a page and clamp to the list length.
+        const container = this.node.getBoundingClientRect();
+        const current = active.getBoundingClientRect();
+        const page = Math.floor(container.height / current.height);
+        const sign = direction === 'pageUp' ? -1 : 1;
+        this._activeIndex = Math.min(Math.max(0, index + sign * page), last);
+        break;
       }
-      // Clamp to the length of the list.
-      this._activeIndex = Math.min(
-        Math.max(0, this._activeIndex),
-        items.length - 1
-      );
     }
 
     active = items[this._activeIndex] as HTMLElement;
     active.classList.add(ACTIVE_CLASS);
-    let completionList = this.node.querySelector(
-      '.jp-Completer-list'
-    ) as Element;
+    let completionList = this.node.querySelector(`.${LIST_CLASS}`) as Element;
     ElementExt.scrollIntoViewIfNeeded(completionList, active);
     this._indexChanged.emit(this._activeIndex);
-    this._updateDocPanel();
+    const visibleCompletionItems = this.model?.completionItems();
+    const activeCompletionItem = visibleCompletionItems?.[this._activeIndex];
+    if (activeCompletionItem) {
+      const resolvedItem = this.model?.resolveItem(activeCompletionItem);
+      if (this._showDoc) {
+        this._updateDocPanel(resolvedItem, active);
+      }
+    }
   }
 
   /**
@@ -435,7 +600,7 @@ export class Completer extends Widget {
           return;
         }
         // Autoinsert single completions on manual request (tab)
-        const items = model.completionItems && model.completionItems();
+        const items = model.completionItems();
         if (items && items.length === 1) {
           this._selected.emit(items[0].insertText || items[0].label);
           this.reset();
@@ -448,12 +613,13 @@ export class Completer extends Widget {
         // then emit a completion signal with that `query` (=subset match),
         // but only if the query has actually changed.
         // See: https://github.com/jupyterlab/jupyterlab/issues/10439#issuecomment-875189540
-        if (model.query && model.query != this._lastSubsetMatch) {
+        if (model.query && model.query !== this._lastSubsetMatch) {
           model.subsetMatch = true;
           this._selected.emit(model.query);
           model.subsetMatch = false;
           this._lastSubsetMatch = model.query;
         }
+
         // If the query changed, update rendering of the options.
         if (populated) {
           this.update();
@@ -557,8 +723,10 @@ export class Completer extends Widget {
       return false;
     }
 
-    const items = this.node.querySelectorAll(`.${ITEM_CLASS}`);
-    const subset = Private.commonSubset(Private.itemValues(items));
+    const items = model.completionItems();
+    const subset = Private.commonSubset(
+      items.map(item => item.insertText || item.label)
+    );
     const { query } = model;
 
     // If a common subset exists and it is not the current query, highlight it.
@@ -588,7 +756,8 @@ export class Completer extends Widget {
 
     const start = model.cursor.start;
     const position = editor.getPositionAt(start) as CodeEditor.IPosition;
-    const anchor = editor.getCoordinateForPosition(position) as ClientRect;
+    const anchor = editor.getCoordinateForPosition(position) as DOMRect;
+
     const style = window.getComputedStyle(node);
     const borderLeft = parseInt(style.borderLeftWidth!, 10) || 0;
     const paddingLeft = parseInt(style.paddingLeft!, 10) || 0;
@@ -602,72 +771,157 @@ export class Completer extends Widget {
       (editor.host.closest('.jp-MainAreaWidget > .lm-Widget') as HTMLElement) ||
       editor.host;
 
+    const items = model.completionItems();
+
+    // Fast cache invalidation (only checks for length rather than length + width)
+    if (this._sizeCache && this._sizeCache.items.length !== items.length) {
+      this._sizeCache = undefined;
+    }
+
     // Calculate the geometry of the completer.
     HoverBox.setGeometry({
       anchor,
       host: host,
-      maxHeight: MAX_HEIGHT,
-      minHeight: MIN_HEIGHT,
+      maxHeight: this._maxHeight,
+      minHeight: this._minHeight,
       node: node,
+      size: this.sizeCache,
       offset: { horizontal: borderLeft + paddingLeft },
       privilege: 'below',
       style: style,
       outOfViewDisplay: {
-        top: 'hidden-inside',
-        bottom: 'hidden-inside',
+        top: 'stick-inside',
+        bottom: 'stick-inside',
         left: 'stick-inside',
         right: 'stick-outside'
       }
     });
+    const current = ++this._geometryCounter;
+    if (!this._sizeCache) {
+      // If size was not pre-calculated using heuristics, save the actual
+      // size into cache once rendered.
+      requestAnimationFrame(() => {
+        if (current != this._geometryCounter) {
+          // Do not set size to cache if it may already be outdated.
+          return;
+        }
+        let rect = node.getBoundingClientRect();
+        let panel = this._docPanel.getBoundingClientRect();
+        this._sizeCache = {
+          width: rect.width - panel.width,
+          height: rect.height,
+          items: items,
+          docPanelWidth: panel.width,
+          docPanelHeight: panel.height
+        };
+      });
+    }
   }
 
   /**
    * Update the display-state and contents of the documentation panel
    */
-  private _updateDocPanel(): void {
-    let docPanel = this.node.querySelector('.jp-Completer-docpanel');
-    if (!docPanel) {
-      return;
-    }
-    if (!this.model?.completionItems) {
+  private _updateDocPanel(
+    resolvedItem: Promise<CompletionHandler.ICompletionItem | null> | undefined,
+    activeNode: HTMLElement
+  ): void {
+    let docPanel = this._docPanel;
+
+    if (!resolvedItem) {
+      this._toggleDocPanel(false);
       return;
     }
-    let items = this.model?.completionItems();
-    if (!items) {
-      docPanel.setAttribute('style', 'display:none');
-      return;
-    }
-    let activeItem = items[this._activeIndex];
-    if (!activeItem) {
-      docPanel.setAttribute('style', 'display:none');
-      return;
-    }
-    docPanel.textContent = '';
-    if (activeItem.documentation) {
-      let node: HTMLElement;
-      if (!this._renderer.createDocumentationNode) {
-        node = Completer.getDefaultRenderer(
-          this.sanitizer
-        ).createDocumentationNode(activeItem);
-      } else {
-        node = this._renderer.createDocumentationNode(activeItem);
+
+    const loadingIndicator =
+      this._renderer.createLoadingDocsIndicator?.() ??
+      this._defaultRenderer.createLoadingDocsIndicator();
+    activeNode.appendChild(loadingIndicator);
+
+    resolvedItem
+      .then(activeItem => {
+        if (!activeItem) {
+          return;
+        }
+        if (!docPanel) {
+          return;
+        }
+        if (activeItem.documentation) {
+          const node =
+            this._renderer.createDocumentationNode?.(activeItem) ??
+            this._defaultRenderer.createDocumentationNode(activeItem);
+          docPanel.textContent = '';
+          docPanel.appendChild(node);
+          this._toggleDocPanel(true);
+        } else {
+          this._toggleDocPanel(false);
+        }
+      })
+      .catch(e => console.error(e))
+      .finally(() => {
+        activeNode.removeChild(loadingIndicator);
+      });
+  }
+
+  private _toggleDocPanel(show: boolean): void {
+    let docPanel = this._docPanel;
+
+    if (show) {
+      if (this._docPanelExpanded) {
+        return;
       }
-      docPanel.appendChild(node);
-      docPanel.setAttribute('style', '');
+      docPanel.style.display = '';
+      this._docPanelExpanded = true;
     } else {
-      docPanel.setAttribute('style', 'display:none');
+      if (!this._docPanelExpanded) {
+        return;
+      }
+      docPanel.style.display = 'none';
+      this._docPanelExpanded = false;
+    }
+    const sizeCache = this._sizeCache;
+    if (sizeCache) {
+      sizeCache.docPanelHeight = show ? this._maxHeight : 0;
+      sizeCache.docPanelWidth = show ? this._docPanelWidth : 0;
+      if (!this._geometryLock) {
+        this._setGeometry();
+      }
     }
   }
 
   private _activeIndex = 0;
-  private _editor: CodeEditor.IEditor | null = null;
+  private _editor: CodeEditor.IEditor | null | undefined = null;
   private _model: Completer.IModel | null = null;
   private _renderer: Completer.IRenderer;
-  private _resetFlag = false;
+  private _defaultRenderer: Completer.Renderer;
   private _selected = new Signal<this, string>(this);
   private _visibilityChanged = new Signal<this, void>(this);
   private _indexChanged = new Signal<this, number>(this);
   private _lastSubsetMatch: string = '';
+  private _showDoc: boolean;
+  private _sizeCache: Private.IDimensionsCache | undefined;
+
+  /**
+   * The maximum height of a completer widget.
+   */
+  private _maxHeight: number;
+
+  /**
+   * The minimum height of a completer widget.
+   */
+  private _minHeight: number;
+
+  private _scrollbarWidth: number;
+  private _docPanelWidth: number;
+  private _docPanel: HTMLElement;
+  private _geometryLock = false;
+
+  /**
+   * Increasing this counter invalidates previous request to save geometry cache in animation callback.
+   */
+  private _geometryCounter: number = 0;
+
+  private _docPanelExpanded = false;
+  private _renderCounter: number = 0;
 }
 
 export namespace Completer {
@@ -695,10 +949,15 @@ export namespace Completer {
      */
     renderer?: IRenderer;
 
+    /**
+     * Flag to show or hide the document panel.
+     */
+    showDoc?: boolean;
+
     /**
      * Sanitizer used to sanitize html strings
      */
-    sanitizer?: ISanitizer;
+    sanitizer?: IRenderMime.ISanitizer;
   }
 
   /**
@@ -711,24 +970,31 @@ export namespace Completer {
     readonly text: string;
 
     /**
-     * The height of a character in the editor.
+     * The line number of the editor cursor.
      */
-    readonly lineHeight: number;
+    readonly line: number;
 
     /**
-     * The width of a character in the editor.
+     * The character number of the editor cursor within a line.
      */
-    readonly charWidth: number;
+    readonly column: number;
+  }
 
+  /**
+   * Information about the query string change.
+   */
+  export interface IQueryChange {
     /**
-     * The line number of the editor cursor.
+     * The new value of the query.
      */
-    readonly line: number;
-
+    newValue: string;
     /**
-     * The character number of the editor cursor within a line.
+     * The event which caused the query to change, one of:
+     * - `editorUpdate`: as a result of editor change, e.g. user typing code,
+     * - `setter`: programatically, e.g. by the logic in the widget,
+     * - `reset`: due to completer model being reset.
      */
-    readonly column: number;
+    origin: 'setter' | 'editorUpdate' | 'reset';
   }
 
   /**
@@ -736,10 +1002,15 @@ export namespace Completer {
    */
   export interface IModel extends IDisposable {
     /**
-     * A signal emitted when state of the completer menu changes.
+     * A signal emitted when state of the completer model changes.
      */
     readonly stateChanged: ISignal<IModel, void>;
 
+    /**
+     * A signal emitted when query string changes (at invocation, or as user types).
+     */
+    readonly queryChanged: ISignal<IModel, IQueryChange>;
+
     /**
      * The current text state details.
      */
@@ -768,22 +1039,27 @@ export namespace Completer {
     /**
      * Get the list of visible CompletionItems in the completer menu.
      */
-    completionItems?(): CompletionHandler.ICompletionItems;
+    completionItems(): CompletionHandler.ICompletionItems;
 
     /**
      * Set the list of visible CompletionItems in the completer menu.
      */
-    setCompletionItems?(items: CompletionHandler.ICompletionItems): void;
+    setCompletionItems(items: CompletionHandler.ICompletionItems): void;
 
     /**
-     * Get the of visible items in the completer menu.
-     */
-    items(): IIterator<IItem>;
-
-    /**
-     * Get the unfiltered options in a completer menu.
+     * Lazy load missing data of an item.
+     * @param indexOrValue - the item or its index
+     * @remarks
+     * Resolving item by index will be deprecated in
+     * the next major release.
+     *
+     * @return Return `undefined` if the completion item with `activeIndex` index can not be found.
+     *  Return a promise of `null` if another `resolveItem` is called. Otherwise return the
+     * promise of resolved completion item.
      */
-    options(): IIterator<string>;
+    resolveItem(
+      activeIndex: number | CompletionHandler.ICompletionItem
+    ): Promise<CompletionHandler.ICompletionItem | null> | undefined;
 
     /**
      * The map from identifiers (`a.b`) to their types (function, module, class,
@@ -796,14 +1072,6 @@ export namespace Completer {
      */
     orderedTypes(): string[];
 
-    /**
-     * Set the available options in the completer menu.
-     */
-    setOptions(
-      options: IterableOrArrayLike<string>,
-      typeMap?: JSONObject
-    ): void;
-
     /**
      * Handle a cursor change.
      */
@@ -847,21 +1115,6 @@ export namespace Completer {
     value: string;
   }
 
-  /**
-   * A completer menu item.
-   */
-  export interface IItem {
-    /**
-     * The highlighted, marked up text of a visible completer item.
-     */
-    text: string;
-
-    /**
-     * The raw text of a visible completer item.
-     */
-    raw: string;
-  }
-
   /**
    * A cursor span.
    */
@@ -880,39 +1133,71 @@ export namespace Completer {
   /**
    * A renderer for completer widget nodes.
    */
-  export interface IRenderer {
+  export interface IRenderer<
+    T extends
+      CompletionHandler.ICompletionItem = CompletionHandler.ICompletionItem
+  > {
     /**
-     * Create an item node (an `li` element)  from a ICompletionItem
+     * Create an item node (an `li` element) from a ICompletionItem
      * for a text completer menu.
+     *
+     * #### Notes
+     * The item provided to renderer is already pre-processed by the model:
+     * - the `label` is escaped to ensure that no user-generated HTML is included;
+     *   if `insertText` was not originally provided, it is set to raw `label`
+     *   (prior to escaping) if needed,
+     * - if there were any matches against the query the `label` has them
+     *    highlighted with `<mark>`s.
      */
-    createCompletionItemNode?(
-      item: CompletionHandler.ICompletionItem,
-      orderedTypes: string[]
-    ): HTMLLIElement;
+    createCompletionItemNode(item: T, orderedTypes: string[]): HTMLLIElement;
 
     /**
-     * Create an item node (an `li` element) for a text completer menu.
+     * Create a documentation node (a `pre` element by default) for
+     * documentation panel.
      */
-    createItemNode(
-      item: IItem,
-      typeMap: TypeMap,
-      orderedTypes: string[]
-    ): HTMLLIElement;
+    createDocumentationNode?(activeItem: T): HTMLElement;
 
     /**
-     * Create a documentation node (a `pre` element by default) for
-     * documentation panel.
+     * Create a loading indicator element for document panel.
      */
-    createDocumentationNode?(
-      activeItem: CompletionHandler.ICompletionItem
-    ): HTMLElement;
+    createLoadingDocsIndicator?(): HTMLElement;
+
+    /**
+     * Get a heuristic for the width of an item.
+     *
+     * As a performance optimization completer will infer the hover box width
+     * from the widest item node which will be rendered before all other nodes.
+     * By default the widest item is selected based on label length heuristic;
+     * renderers which customize item rendering can use this method to provide
+     * a custom heuristic.
+     */
+    itemWidthHeuristic?(a: T): number;
+  }
+
+  /**
+   * A namespace for the default renderer.
+   */
+  export namespace Renderer {
+    export interface IOptions {
+      /**
+       * The sanitizer used to sanitize untrusted HTML inputs.
+       */
+      sanitizer?: IRenderMime.ISanitizer;
+    }
   }
 
   /**
    * The default implementation of an `IRenderer`.
    */
   export class Renderer implements IRenderer {
-    constructor(readonly sanitizer: ISanitizer = defaultSanitizer) {}
+    constructor(options?: Renderer.IOptions) {
+      this.sanitizer = options?.sanitizer || new Sanitizer();
+    }
+
+    /**
+     * The sanitizer used to sanitize untrusted HTML inputs.
+     */
+    readonly sanitizer: IRenderMime.ISanitizer;
 
     /**
      * Create an item node from an ICompletionItem for a text completer menu.
@@ -921,13 +1206,13 @@ export namespace Completer {
       item: CompletionHandler.ICompletionItem,
       orderedTypes: string[]
     ): HTMLLIElement {
-      let baseNode = this._createBaseNode(item.insertText || item.label);
+      let wrapperNode = this._createWrapperNode(item.insertText || item.label);
       if (item.deprecated) {
-        baseNode.classList.add('jp-Completer-deprecated');
+        wrapperNode.classList.add('jp-Completer-deprecated');
       }
       return this._constructNode(
-        baseNode,
-        this._createMatchNode(item.label),
+        wrapperNode,
+        this._createLabelNode(item.label),
         !!item.type,
         item.type,
         orderedTypes,
@@ -935,38 +1220,47 @@ export namespace Completer {
       );
     }
 
-    /**
-     * Create an item node for a text completer menu.
-     */
-    createItemNode(
-      item: IItem,
-      typeMap: TypeMap,
-      orderedTypes: string[]
-    ): HTMLLIElement {
-      return this._constructNode(
-        this._createBaseNode(item.raw),
-        this._createMatchNode(item.text),
-        !JSONExt.deepEqual(typeMap, {}),
-        typeMap[item.raw] || '',
-        orderedTypes
-      );
-    }
-
     /**
      * Create a documentation node for documentation panel.
      */
     createDocumentationNode(
       activeItem: CompletionHandler.ICompletionItem
     ): HTMLElement {
-      let pre = document.createElement('pre');
-      pre.textContent = activeItem.documentation || '';
-      return pre;
+      const host = document.createElement('div');
+      host.classList.add('jp-RenderedText');
+      const sanitizer = this.sanitizer;
+      const source = activeItem.documentation || '';
+
+      renderText({ host, sanitizer, source }).catch(console.error);
+      return host;
     }
 
     /**
-     * Create base node with the value to be inserted
+     * Get a heuristic for the width of an item.
      */
-    private _createBaseNode(value: string): HTMLLIElement {
+    itemWidthHeuristic(item: CompletionHandler.ICompletionItem): number {
+      // Get the label text without HTML markup (`<mark>` is the only markup
+      // that is allowed in processed items, everything else gets escaped).
+      const labelText = item.label.replace(/<(\/)?mark>/g, '');
+      return labelText.length + (item.type?.length || 0);
+    }
+
+    /**
+     * Create a loading bar for the documentation panel.
+     */
+    createLoadingDocsIndicator(): HTMLElement {
+      const loadingContainer = document.createElement('div');
+      loadingContainer.classList.add('jp-Completer-loading-bar-container');
+      const loadingBar = document.createElement('div');
+      loadingBar.classList.add('jp-Completer-loading-bar');
+      loadingContainer.append(loadingBar);
+      return loadingContainer;
+    }
+
+    /**
+     * Create base node with the value to be inserted.
+     */
+    private _createWrapperNode(value: string): HTMLLIElement {
       const li = document.createElement('li');
       li.className = ITEM_CLASS;
       // Set the raw, un-marked up value as a data attribute.
@@ -977,13 +1271,11 @@ export namespace Completer {
     /**
      * Create match node to highlight potential prefix match within result.
      */
-    private _createMatchNode(result: string): HTMLElement {
+    private _createLabelNode(result: string): HTMLElement {
       const matchNode = document.createElement('code');
       matchNode.className = 'jp-Completer-match';
       // Use innerHTML because search results include <mark> tags.
-      matchNode.innerHTML = this.sanitizer.sanitize(result, {
-        allowedTags: ['mark']
-      });
+      matchNode.innerHTML = result;
       return matchNode;
     }
 
@@ -1043,29 +1335,38 @@ export namespace Completer {
   }
 
   /**
-   * The default `IRenderer` instance.
-   *
-   * @deprecated Will be removed in v4 - you should use `getDefaultRenderer` instead.
-   */
-  export const defaultRenderer = new Renderer();
-
-  /**
-   * Default renderer with custom sanitizer.
+   * Default renderer
    */
   let _defaultRenderer: Renderer;
 
   /**
    * The default `IRenderer` instance.
    */
-  export function getDefaultRenderer(sanitizer?: ISanitizer): Renderer {
+  export function getDefaultRenderer(
+    sanitizer?: IRenderMime.ISanitizer
+  ): Renderer {
     if (
       !_defaultRenderer ||
       (sanitizer && _defaultRenderer.sanitizer !== sanitizer)
     ) {
-      _defaultRenderer = new Renderer(sanitizer);
+      _defaultRenderer = new Renderer({ sanitizer: sanitizer });
     }
     return _defaultRenderer;
   }
+
+  /**
+   * Pre-calculated dimensions of the completer widget box.
+   */
+  export interface IDimensions {
+    /**
+     * The total width including the documentation panel if visible.
+     */
+    width: number;
+    /**
+     * The total height of the visible part of the completer.
+     */
+    height: number;
+  }
 }
 
 /**
@@ -1109,20 +1410,6 @@ namespace Private {
     return subset;
   }
 
-  /**
-   * Returns the list of raw item values currently in the DOM.
-   */
-  export function itemValues(items: NodeList): string[] {
-    const values: string[] = [];
-    for (let i = 0, len = items.length; i < len; i++) {
-      const attr = (items[i] as HTMLElement).getAttribute('data-value');
-      if (attr) {
-        values.push(attr);
-      }
-    }
-    return values;
-  }
-
   /**
    * Returns true for any modified click event (i.e., not a left-click).
    */
@@ -1135,4 +1422,41 @@ namespace Private {
       event.metaKey
     );
   }
+
+  /**
+   * Measure size of provided HTML element without painting it.
+   *
+   * #### Notes
+   * The provided element has to be detached (not connected to DOM),
+   * or a side-effect of detaching it will occur.
+   */
+  export function measureSize(element: HTMLElement, display: string): DOMRect {
+    if (element.isConnected) {
+      console.warn(
+        'Measuring connected elements with `measureSize` has side-effects'
+      );
+    }
+    element.style.visibility = 'hidden';
+    element.style.display = display;
+    document.body.appendChild(element);
+    const size = element.getBoundingClientRect();
+    document.body.removeChild(element);
+    element.removeAttribute('style');
+    return size;
+  }
+
+  export interface IDimensionsCache extends Completer.IDimensions {
+    /**
+     * The items for which the cache was most originally computed.
+     */
+    items: CompletionHandler.ICompletionItems;
+    /**
+     * The width of documentation panel.
+     */
+    docPanelWidth: number;
+    /**
+     * The height of documentation panel.
+     */
+    docPanelHeight: number;
+  }
 }
diff --git a/packages/completer/style/base.css b/packages/completer/style/base.css
index 38beb2a80f02..e569ba566b7c 100644
--- a/packages/completer/style/base.css
+++ b/packages/completer/style/base.css
@@ -6,6 +6,7 @@
 
 :root {
   --jp-private-completer-item-height: 24px;
+
   /* Shift the baseline of the type character to align with the match text */
   --jp-private-completer-type-offset: 2px;
 }
@@ -18,6 +19,10 @@
   padding: 0;
   display: flex;
   flex-direction: row;
+
+  /* Needed to avoid scrollbar issues when using cached width. */
+  box-sizing: content-box;
+
   /* Position the completer relative to the text editor, align the '.' */
   margin: 4px 0 0 -30px;
   z-index: 10001;
@@ -25,16 +30,17 @@
 
 .jp-Completer-docpanel {
   border-left: var(--jp-border-width) solid var(--jp-border-color1);
-  width: 300px;
-  overflow: scroll;
+  width: 400px;
+  overflow-y: scroll;
+  overflow-x: auto;
   padding: 8px;
   max-height: calc((10 * var(--jp-private-completer-item-height)) - 16px);
 }
 
 .jp-Completer-docpanel pre {
   border: none;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
   white-space: pre-wrap;
 }
 
@@ -46,19 +52,21 @@
   overflow-x: auto;
   max-height: calc((10 * var(--jp-private-completer-item-height)));
   min-height: calc(var(--jp-private-completer-item-height));
+  width: 100%;
 }
 
 .jp-Completer-item {
-  display: table-row;
   box-sizing: border-box;
   margin: 0;
   padding: 0;
   height: var(--jp-private-completer-item-height);
   min-width: 150px;
+  display: grid;
+  grid-template-columns: min-content 1fr min-content;
+  position: relative;
 }
 
 .jp-Completer-item .jp-Completer-match {
-  display: table-cell;
   box-sizing: border-box;
   margin: 0;
   padding: 0 8px 0 6px;
@@ -66,7 +74,6 @@
   font-family: var(--jp-code-font-family);
   font-size: var(--jp-code-font-size);
   line-height: var(--jp-private-completer-item-height);
-  vertical-align: middle;
 }
 
 .jp-Completer-deprecated .jp-Completer-match {
@@ -75,7 +82,6 @@
 }
 
 .jp-Completer-item .jp-Completer-type {
-  display: table-cell;
   box-sizing: border-box;
   height: var(--jp-private-completer-item-height);
   background: transparent;
@@ -83,7 +89,6 @@
 }
 
 .jp-Completer-item .jp-Completer-icon {
-  vertical-align: middle;
   /* Normal element size from LabIconStyle.ISheetOptions */
   height: 16px;
   width: 16px;
@@ -93,7 +98,6 @@
   text-align: center;
   color: white;
   width: var(--jp-private-completer-item-height);
-  min-width: var(--jp-private-completer-item-height);
   font-family: var(--jp-ui-font-family);
   font-size: var(--jp-ui-font-size1);
   line-height: calc(
@@ -104,7 +108,6 @@
 }
 
 .jp-Completer-item .jp-Completer-typeExtended {
-  display: table-cell;
   box-sizing: border-box;
   height: var(--jp-private-completer-item-height);
   text-align: right;
@@ -114,7 +117,6 @@
   font-size: var(--jp-code-font-size);
   line-height: var(--jp-private-completer-item-height);
   padding-right: 8px;
-  vertical-align: middle;
 }
 
 .jp-Completer-item:hover {
@@ -176,3 +178,31 @@
 .jp-Completer-type[data-color-index='10'] {
   background: #17becf;
 }
+
+.jp-Completer-loading-bar-container {
+  height: 2px;
+  width: calc(100% - var(--jp-private-completer-item-height));
+  left: var(--jp-private-completer-item-height);
+  position: absolute;
+  overflow: hidden;
+  top: 0;
+}
+
+.jp-Completer-loading-bar {
+  height: 100%;
+  width: 50%;
+  background-color: var(--jp-accent-color2);
+  position: absolute;
+  left: -50%;
+  animation: jp-Completer-loading 2s ease-in 0.5s infinite;
+}
+
+@keyframes jp-Completer-loading {
+  0% {
+    transform: translateX(0);
+  }
+
+  100% {
+    transform: translateX(400%);
+  }
+}
diff --git a/packages/completer/style/index.css b/packages/completer/style/index.css
index 4f80f4f9b81e..0a3aea25b58c 100644
--- a/packages/completer/style/index.css
+++ b/packages/completer/style/index.css
@@ -7,5 +7,5 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-
+@import url('~@jupyterlab/rendermime/style/index.css');
 @import url('./base.css');
diff --git a/packages/completer/style/index.js b/packages/completer/style/index.js
index 714d25e16c3d..7a5968c1d68f 100644
--- a/packages/completer/style/index.js
+++ b/packages/completer/style/index.js
@@ -7,5 +7,6 @@
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/rendermime/style/index.js';
 
 import './base.css';
diff --git a/packages/completer/test/kernelprovider.spec.ts b/packages/completer/test/kernelprovider.spec.ts
new file mode 100644
index 000000000000..0fdef875b7c5
--- /dev/null
+++ b/packages/completer/test/kernelprovider.spec.ts
@@ -0,0 +1,173 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { KernelMessage } from '@jupyterlab/services';
+import {
+  ICompletionContext,
+  KernelCompleterProvider
+} from '@jupyterlab/completer';
+import {
+  KernelMock,
+  SessionConnectionMock
+} from '@jupyterlab/services/lib/testutils';
+
+describe('completer/default/kernelprovider', () => {
+  describe('KernelCompleterProvider', () => {
+    const provider = new KernelCompleterProvider();
+    const kernel = new KernelMock({});
+    const connection = new SessionConnectionMock({}, kernel);
+    const context: ICompletionContext = {
+      widget: null as any,
+      session: connection
+    };
+
+    describe('#fetch()', () => {
+      it('should accept results with `_jupyter_types_experimental` metadata', async () => {
+        kernel.requestComplete = async (
+          contents: KernelMessage.ICompleteRequestMsg['content']
+        ) => {
+          return {
+            channel: 'shell',
+            header: {
+              msg_id: '8a1cb99c-fdff731a5471adf71bcccb01_103588_3078',
+              msg_type: 'complete_reply',
+              username: '',
+              session: '8a1cb99c-fdff731a5471adf71bcccb01',
+              date: '2023-05-07T13:37:29.216298Z',
+              version: '5.3'
+            },
+            parent_header: {
+              date: '2023-05-07T13:37:29.092000Z',
+              msg_id: '766951ae-5117-4282-abd3-b43b569aa496',
+              msg_type: 'complete_request',
+              session: '7ec9fde6-c8bb-40b2-a7f3-8e1b514f7037',
+              username: '',
+              version: '5.2'
+            },
+            metadata: {},
+            content: {
+              matches: ['staticmethod', 'str', '%store'],
+              cursor_end: 2,
+              cursor_start: 0,
+              metadata: {
+                _jupyter_types_experimental: [
+                  {
+                    start: 0,
+                    end: 2,
+                    text: 'staticmethod',
+                    type: 'class',
+                    signature: ''
+                  },
+                  {
+                    start: 0,
+                    end: 2,
+                    text: 'str',
+                    type: 'class',
+                    signature: ''
+                  },
+                  {
+                    start: 0,
+                    end: 2,
+                    text: '%store',
+                    type: 'magic',
+                    signature: ''
+                  }
+                ]
+              },
+              status: 'ok'
+            }
+          };
+        };
+
+        const result = await provider.fetch({ text: 'st', offset: 2 }, context);
+
+        expect(result).toStrictEqual({
+          start: 0,
+          end: 2,
+          items: [
+            {
+              label: 'staticmethod',
+              type: 'class',
+              insertText: 'staticmethod'
+            },
+            { label: 'str', type: 'class', insertText: 'str' },
+            { label: '%store', type: 'magic', insertText: '%store' }
+          ]
+        });
+      });
+
+      it('should accept results without `_jupyter_types_experimental` metadata', async () => {
+        kernel.requestComplete = async (
+          contents: KernelMessage.ICompleteRequestMsg['content']
+        ) => {
+          return {
+            channel: 'shell',
+            header: {
+              msg_id: '6bb75124-996c-45b6-80ce-cd28f490a9d2',
+              session: 'fd6b9f46-6d46-4e11-b686-27f73b027f8d',
+              username: '',
+              date: '2023-05-07T13:10:54.600942Z',
+              msg_type: 'complete_reply',
+              version: '5.3'
+            },
+            parent_header: {
+              date: '2023-05-07T13:10:54.586Z',
+              msg_id: '7c93ba17-facd-44ed-b6a7-f34348a9ea42',
+              msg_type: 'complete_request',
+              session: 'fd6b9f46-6d46-4e11-b686-27f73b027f8d',
+              username: '',
+              version: '5.2'
+            },
+            metadata: {},
+            content: {
+              matches: [
+                'plclust',
+                'plnorm',
+                'plogis',
+                'plot',
+                'plot.default',
+                'plot.design',
+                'plot.ecdf',
+                'plot.function',
+                'plot.new',
+                'plot.spec.coherency',
+                'plot.spec.phase',
+                'plot.stepfun',
+                'plot.ts',
+                'plot.window',
+                'plot.xy'
+              ],
+              metadata: {},
+              cursor_start: 0,
+              cursor_end: 2,
+              status: 'ok'
+            }
+          };
+        };
+
+        const result = await provider.fetch({ text: 'pl', offset: 2 }, context);
+        expect(result).toStrictEqual({
+          start: 0,
+          end: 2,
+          items: [
+            { label: 'plclust' },
+            { label: 'plnorm' },
+            { label: 'plogis' },
+            { label: 'plot' },
+            { label: 'plot.default' },
+            { label: 'plot.design' },
+            { label: 'plot.ecdf' },
+            { label: 'plot.function' },
+            { label: 'plot.new' },
+            { label: 'plot.spec.coherency' },
+            { label: 'plot.spec.phase' },
+            { label: 'plot.stepfun' },
+            { label: 'plot.ts' },
+            { label: 'plot.window' },
+            { label: 'plot.xy' }
+          ]
+        });
+      });
+    });
+  });
+});
diff --git a/packages/completer/test/model.spec.ts b/packages/completer/test/model.spec.ts
index dac8b29ef4af..353104278034 100644
--- a/packages/completer/test/model.spec.ts
+++ b/packages/completer/test/model.spec.ts
@@ -1,14 +1,11 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CodeEditor } from '@jupyterlab/codeeditor';
 import {
   Completer,
   CompleterModel,
   CompletionHandler
 } from '@jupyterlab/completer';
-import { toArray } from '@lumino/algorithm';
-import { JSONExt } from '@lumino/coreutils';
 
 function makeState(text: string): Completer.ITextState {
   return {
@@ -16,7 +13,7 @@ function makeState(text: string): Completer.ITextState {
     lineHeight: 0,
     charWidth: 0,
     line: 0,
-    coords: { left: 0, right: 0, top: 0, bottom: 0 } as CodeEditor.ICoordinate,
+    coords: { left: 0, right: 0, top: 0, bottom: 0 },
     text
   };
 }
@@ -32,20 +29,6 @@ describe('completer/model', () => {
     });
 
     describe('#stateChanged', () => {
-      it('should signal when model options have changed', () => {
-        const model = new CompleterModel();
-        let called = 0;
-        const listener = (sender: any, args: void) => {
-          called++;
-        };
-        model.stateChanged.connect(listener);
-        expect(called).toBe(0);
-        model.setOptions(['foo']);
-        expect(called).toBe(1);
-        model.setOptions(['foo'], { foo: 'instance' });
-        expect(called).toBe(2);
-      });
-
       it('should signal when model items have changed', () => {
         let model = new CompleterModel();
         let called = 0;
@@ -54,30 +37,11 @@ describe('completer/model', () => {
         };
         model.stateChanged.connect(listener);
         expect(called).toBe(0);
-        model.setCompletionItems!([{ label: 'foo' }]);
-        expect(called).toBe(1);
-        model.setCompletionItems!([{ label: 'foo' }]);
-        model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
-        expect(called).toBe(2);
-      });
-
-      it('should not signal when options have not changed', () => {
-        const model = new CompleterModel();
-        let called = 0;
-        const listener = (sender: any, args: void) => {
-          called++;
-        };
-        model.stateChanged.connect(listener);
-        expect(called).toBe(0);
-        model.setOptions(['foo']);
-        model.setOptions(['foo']);
+        model.setCompletionItems([{ label: 'foo' }]);
         expect(called).toBe(1);
-        model.setOptions(['foo'], { foo: 'instance' });
-        model.setOptions(['foo'], { foo: 'instance' });
+        model.setCompletionItems([{ label: 'foo' }]);
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
         expect(called).toBe(2);
-        model.setOptions([], {});
-        model.setOptions([], {});
-        expect(called).toBe(3);
       });
 
       it('should not signal when items have not changed', () => {
@@ -88,15 +52,26 @@ describe('completer/model', () => {
         };
         model.stateChanged.connect(listener);
         expect(called).toBe(0);
-        model.setCompletionItems!([{ label: 'foo' }]);
-        model.setCompletionItems!([{ label: 'foo' }]);
+        model.setCompletionItems([{ label: 'foo' }]);
+        model.setCompletionItems([{ label: 'foo' }]);
         expect(called).toBe(1);
-        model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
-        model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
         expect(called).toBe(2);
-        model.setCompletionItems!([]);
-        model.setCompletionItems!([]);
+        model.setCompletionItems([]);
+        model.setCompletionItems([]);
         expect(called).toBe(3);
+        const itemsWithResolve = [
+          {
+            label: 'foo',
+            resolve: async () => {
+              return { label: 'foo', documentation: 'Foo docs' };
+            }
+          }
+        ];
+        model.setCompletionItems(itemsWithResolve);
+        model.setCompletionItems(itemsWithResolve);
+        expect(called).toBe(4);
       });
 
       it('should signal when original request changes', () => {
@@ -176,11 +151,100 @@ describe('completer/model', () => {
       });
     });
 
+    describe('#queryChanged', () => {
+      it('should signal when query is set via public setter', () => {
+        const model = new CompleterModel();
+        let called: Record<'setter' | 'editorUpdate' | 'reset', number> = {
+          setter: 0,
+          editorUpdate: 0,
+          reset: 0
+        };
+        const listener = (sender: any, args: Completer.IQueryChange) => {
+          called[args.origin]++;
+        };
+        model.queryChanged.connect(listener);
+        expect(called.setter).toBe(0);
+        model.query = 'foo';
+        expect(called.setter).toBe(1);
+        model.query = 'bar';
+        expect(called.setter).toBe(2);
+        expect(called.editorUpdate).toBe(0);
+      });
+
+      it('should signal when query gets reset', () => {
+        const model = new CompleterModel();
+        let called: Record<'setter' | 'editorUpdate' | 'reset', number> = {
+          setter: 0,
+          editorUpdate: 0,
+          reset: 0
+        };
+        const listener = (sender: any, args: Completer.IQueryChange) => {
+          called[args.origin]++;
+        };
+        model.queryChanged.connect(listener);
+        expect(called.reset).toBe(0);
+        model.query = 'foo';
+        expect(called.reset).toBe(0);
+        model.reset();
+        expect(called.reset).toBe(1);
+        // Should not call again (query does not change with second reset)
+        model.reset();
+        expect(called.reset).toBe(1);
+      });
+
+      it('should signal when current text changes', () => {
+        const model = new CompleterModel();
+        let called: Record<'setter' | 'editorUpdate' | 'reset', number> = {
+          setter: 0,
+          editorUpdate: 0,
+          reset: 0
+        };
+        const currentValue = 'foo';
+        const newValue = 'foob';
+        const cursor: Completer.ICursorSpan = { start: 0, end: 0 };
+        const request = makeState(currentValue);
+        const change = makeState(newValue);
+        const listener = (sender: any, args: Completer.IQueryChange) => {
+          called[args.origin]++;
+        };
+        model.queryChanged.connect(listener);
+        expect(called.editorUpdate).toBe(0);
+        model.original = request;
+        model.cursor = cursor;
+        model.current = change;
+        expect(called.editorUpdate).toBe(1);
+      });
+
+      it('should not signal when current text is unchanged', () => {
+        const model = new CompleterModel();
+        let called: Record<'setter' | 'editorUpdate' | 'reset', number> = {
+          setter: 0,
+          editorUpdate: 0,
+          reset: 0
+        };
+        const currentValue = 'foo';
+        const newValue = 'foob';
+        const cursor: Completer.ICursorSpan = { start: 0, end: 0 };
+        const request = makeState(currentValue);
+        const change = makeState(newValue);
+        const listener = (sender: any, args: Completer.IQueryChange) => {
+          called[args.origin]++;
+        };
+        model.queryChanged.connect(listener);
+        expect(called.editorUpdate).toBe(0);
+        model.original = request;
+        model.cursor = cursor;
+        model.current = change;
+        model.current = change;
+        expect(called.editorUpdate).toBe(1);
+      });
+    });
+
     describe('#completionItems()', () => {
       it('should default to { items: [] }', () => {
         let model = new CompleterModel();
         let want: CompletionHandler.ICompletionItems = [];
-        expect(model.completionItems!()).toEqual(want);
+        expect(model.completionItems()).toEqual(want);
       });
 
       it('should return unmarked ICompletionItems if query is blank', () => {
@@ -190,25 +254,25 @@ describe('completer/model', () => {
           { label: 'bar' },
           { label: 'baz' }
         ];
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'foo' },
           { label: 'bar' },
           { label: 'baz' }
         ]);
-        expect(model.completionItems!()).toEqual(want);
+        expect(model.completionItems()).toEqual(want);
       });
 
       it('should return a marked list of items if query is set', () => {
         let model = new CompleterModel();
         let want = '<mark>f</mark>oo';
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'foo' },
           { label: 'bar' },
           { label: 'baz' }
         ]);
         model.query = 'f';
-        expect(model.completionItems!().length).toEqual(1);
-        expect(model.completionItems!()[0].label).toEqual(want);
+        expect(model.completionItems().length).toEqual(1);
+        expect(model.completionItems()[0].label).toEqual(want);
       });
 
       it('should order list based on score', () => {
@@ -217,7 +281,7 @@ describe('completer/model', () => {
           { insertText: 'qux', label: '<mark>qux</mark>' },
           { insertText: 'quux', label: '<mark>qu</mark>u<mark>x</mark>' }
         ];
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'foo' },
           { label: 'bar' },
           { label: 'baz' },
@@ -225,7 +289,7 @@ describe('completer/model', () => {
           { label: 'qux' }
         ]);
         model.query = 'qux';
-        expect(model.completionItems!()).toEqual(want);
+        expect(model.completionItems()).toEqual(want);
       });
 
       it('should break ties in score by locale sort', () => {
@@ -234,7 +298,7 @@ describe('completer/model', () => {
           { insertText: 'quux', label: '<mark>qu</mark>ux' },
           { insertText: 'qux', label: '<mark>qu</mark>x' }
         ];
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'foo' },
           { label: 'bar' },
           { label: 'baz' },
@@ -242,87 +306,44 @@ describe('completer/model', () => {
           { label: 'qux' }
         ]);
         model.query = 'qu';
-        expect(model.completionItems!()).toEqual(want);
+        expect(model.completionItems()).toEqual(want);
       });
 
       it('should return { items: [] } if reset', () => {
         let model = new CompleterModel();
         let want: CompletionHandler.ICompletionItems = [];
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'foo' },
           { label: 'bar' },
           { label: 'baz' }
         ]);
         model.reset();
-        expect(model.completionItems!()).toEqual(want);
-      });
-    });
-
-    describe('#items()', () => {
-      it('should return an unfiltered list of items if query is blank', () => {
-        const model = new CompleterModel();
-        const want: Completer.IItem[] = [
-          { raw: 'foo', text: 'foo' },
-          { raw: 'bar', text: 'bar' },
-          { raw: 'baz', text: 'baz' }
-        ];
-        model.setOptions(['foo', 'bar', 'baz']);
-        expect(toArray(model.items())).toEqual(want);
+        expect(model.completionItems()).toEqual(want);
       });
 
-      it('should return a filtered list of items if query is set', () => {
-        const model = new CompleterModel();
-        const want: Completer.IItem[] = [
-          { raw: 'foo', text: '<mark>f</mark>oo' }
-        ];
-        model.setOptions(['foo', 'bar', 'baz']);
-        model.query = 'f';
-        expect(toArray(model.items())).toEqual(want);
-      });
-
-      it('should order list based on score', () => {
-        const model = new CompleterModel();
-        const want: Completer.IItem[] = [
-          { raw: 'qux', text: '<mark>qux</mark>' },
-          { raw: 'quux', text: '<mark>qu</mark>u<mark>x</mark>' }
+      it('should escape HTML markup', () => {
+        let model = new CompleterModel();
+        let want: CompletionHandler.ICompletionItems = [
+          {
+            label: '&lt;foo&gt;&lt;/foo&gt;',
+            insertText: '<foo></foo>'
+          }
         ];
-        model.setOptions(['foo', 'bar', 'baz', 'quux', 'qux']);
-        model.query = 'qux';
-        expect(toArray(model.items())).toEqual(want);
+        model.setCompletionItems([{ label: '<foo></foo>' }]);
+        expect(model.completionItems()).toEqual(want);
       });
 
-      it('should break ties in score by locale sort', () => {
-        const model = new CompleterModel();
-        const want: Completer.IItem[] = [
-          { raw: 'quux', text: '<mark>qu</mark>ux' },
-          { raw: 'qux', text: '<mark>qu</mark>x' }
+      it('should escape HTML with matches markup', () => {
+        let model = new CompleterModel();
+        let want: CompletionHandler.ICompletionItems = [
+          {
+            label: '&lt;foo&gt;<mark>smi</mark>le&lt;/foo&gt;',
+            insertText: '<foo>smile</foo>'
+          }
         ];
-        model.setOptions(['foo', 'bar', 'baz', 'qux', 'quux']);
-        model.query = 'qu';
-        expect(toArray(model.items())).toEqual(want);
-      });
-    });
-
-    describe('#options()', () => {
-      it('should default to an empty iterator', () => {
-        const model = new CompleterModel();
-        expect(model.options().next()).toBeUndefined();
-      });
-
-      it('should return model options', () => {
-        const model = new CompleterModel();
-        const options = ['foo'];
-        model.setOptions(options, {});
-        expect(toArray(model.options())).not.toBe(options);
-        expect(toArray(model.options())).toEqual(options);
-      });
-
-      it('should return the typeMap', () => {
-        const model = new CompleterModel();
-        const options = ['foo'];
-        const typeMap = { foo: 'instance' };
-        model.setOptions(options, typeMap);
-        expect(JSONExt.deepEqual(model.typeMap(), typeMap)).toBeTruthy();
+        model.setCompletionItems([{ label: '<foo>smile</foo>' }]);
+        model.query = 'smi';
+        expect(model.completionItems()).toEqual(want);
       });
     });
 
@@ -392,7 +413,6 @@ describe('completer/model', () => {
         model.current = change;
         expect(model.current).toBeNull();
         expect(model.original).toBeNull();
-        expect(model.options().next()).toBeUndefined();
       });
     });
 
@@ -426,7 +446,7 @@ describe('completer/model', () => {
     describe('#dispose()', () => {
       it('should dispose of the model resources', () => {
         const model = new CompleterModel();
-        model.setOptions(['foo'], { foo: 'instance' });
+        model.setCompletionItems([{ label: 'foo' }]);
         expect(model.isDisposed).toBe(false);
         model.dispose();
         expect(model.isDisposed).toBe(true);
@@ -509,5 +529,95 @@ describe('completer/model', () => {
         expect(model.createPatch(patch)).toEqual(want);
       });
     });
+    describe('#resolveItem()', () => {
+      it('should return `undefined` if the completion item list is empty.', () => {
+        const model = new CompleterModel();
+        expect(model.resolveItem(0)).toBeUndefined();
+      });
+
+      it('should return undefined if item index is out of range.', () => {
+        const model = new CompleterModel();
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
+        expect(model.resolveItem(3)).toBeUndefined();
+      });
+      it('should return the original item if `resolve` is missing.', async () => {
+        const model = new CompleterModel();
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
+        const resolved = await model.resolveItem(0);
+        expect(resolved).toEqual({ label: 'foo' });
+      });
+      it('should resolve by index missing fields and remove the `resolve` function itself', async () => {
+        const model = new CompleterModel();
+        const item = {
+          label: 'foo',
+          resolve: () =>
+            Promise.resolve({ label: 'foo', documentation: 'Foo docs' })
+        };
+        model.setCompletionItems([item]);
+        const resolved = await model.resolveItem(0);
+        expect(resolved).toEqual({ label: 'foo', documentation: 'Foo docs' });
+        expect(item).toEqual({
+          label: 'foo',
+          documentation: 'Foo docs',
+          resolve: undefined
+        });
+      });
+      it('should resolve by value missing fields and remove the `resolve` function itself', async () => {
+        const model = new CompleterModel();
+        const item = {
+          label: 'foo',
+          resolve: () =>
+            Promise.resolve({ label: 'foo', documentation: 'Foo docs' })
+        };
+        const resolved = await model.resolveItem(item);
+        expect(resolved).toEqual({ label: 'foo', documentation: 'Foo docs' });
+        expect(item).toEqual({
+          label: 'foo',
+          documentation: 'Foo docs',
+          resolve: undefined
+        });
+      });
+      it('should cancel pending resolution', async () => {
+        const model = new CompleterModel();
+        const item1 = {
+          label: 'foo',
+          resolve: async () => {
+            await new Promise(r => setTimeout(r, 100));
+            return { label: 'foo', documentation: 'Foo docs' };
+          }
+        };
+        const item2 = {
+          label: 'bar',
+          resolve: async () => {
+            await new Promise(r => setTimeout(r, 100));
+            return { label: 'bar', documentation: 'Bar docs' };
+          }
+        };
+        model.setCompletionItems([item1, item2]);
+        const first = model.resolveItem(item1);
+        const second = model.resolveItem(item2);
+        expect(await first).toEqual(null);
+        expect(await second).toEqual({
+          label: 'bar',
+          documentation: 'Bar docs'
+        });
+      });
+      it('should escape HTML markup', async () => {
+        let model = new CompleterModel();
+        const item = {
+          label: '<foo></foo>',
+          resolve: () =>
+            Promise.resolve({ label: '<foo></foo>', documentation: 'Foo docs' })
+        };
+        model.setCompletionItems([item]);
+        const resolved = await model.resolveItem(0);
+        expect(resolved).toEqual({
+          label: '&lt;foo&gt;&lt;/foo&gt;',
+          insertText: '<foo></foo>',
+          documentation: 'Foo docs',
+          resolve: undefined
+        });
+      });
+    });
   });
 });
diff --git a/packages/completer/tsconfig.json b/packages/completer/tsconfig.json
index e474b0a1b464..8885881dd526 100644
--- a/packages/completer/tsconfig.json
+++ b/packages/completer/tsconfig.json
@@ -4,7 +4,7 @@
     "outDir": "lib",
     "rootDir": "src"
   },
-  "include": ["src/*"],
+  "include": ["src/*", "src/default/*"],
   "references": [
     {
       "path": "../apputils"
@@ -15,6 +15,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../rendermime"
+    },
     {
       "path": "../services"
     },
diff --git a/packages/completer/tsconfig.test.json b/packages/completer/tsconfig.test.json
index f5b367bf4712..7cc229a729fa 100644
--- a/packages/completer/tsconfig.test.json
+++ b/packages/completer/tsconfig.test.json
@@ -11,6 +11,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../rendermime"
+    },
     {
       "path": "../services"
     },
@@ -24,25 +27,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../statedb"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/console-extension/package.json b/packages/console-extension/package.json
index fb36f1c3f084..a817b3460c5f 100644
--- a/packages/console-extension/package.json
+++ b/packages/console-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/console-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Code Console Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,27 +38,28 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer-extension/schema/consoles.json b/packages/console-extension/schema/completer.json
similarity index 100%
rename from packages/completer-extension/schema/consoles.json
rename to packages/console-extension/schema/completer.json
diff --git a/packages/console-extension/schema/tracker.json b/packages/console-extension/schema/tracker.json
index 762d7c320f85..6775b5bd8791 100644
--- a/packages/console-extension/schema/tracker.json
+++ b/packages/console-extension/schema/tracker.json
@@ -98,82 +98,6 @@
       "selector": ".jp-CodeConsole[data-jp-interaction-mode='terminal'] .jp-CodeConsole-promptCell"
     }
   ],
-  "definitions": {
-    "editorConfig": {
-      "properties": {
-        "autoClosingBrackets": {
-          "type": "boolean",
-          "title": "Auto Closing Brackets"
-        },
-        "cursorBlinkRate": {
-          "type": "number",
-          "title": "Cursor Blinking Rate",
-          "description": "Half-period in milliseconds used for cursor blinking. The default blink rate is 530ms. By setting this to zero, blinking can be disabled. A negative value hides the cursor entirely."
-        },
-        "fontFamily": {
-          "type": ["string", "null"],
-          "title": "Font Family"
-        },
-        "fontSize": {
-          "type": ["integer", "null"],
-          "title": "Font Size",
-          "minimum": 1,
-          "maximum": 100
-        },
-        "lineHeight": {
-          "title": "Line Height",
-          "type": ["number", "null"]
-        },
-        "lineNumbers": {
-          "type": "boolean",
-          "title": "Show Line Numbers"
-        },
-        "lineWrap": {
-          "type": "string",
-          "enum": ["off", "on", "wordWrapColumn", "bounded"],
-          "title": "Line Wrap"
-        },
-        "matchBrackets": {
-          "type": "boolean",
-          "title": "Match Brackets"
-        },
-        "readOnly": {
-          "type": "boolean",
-          "title": "Read Only"
-        },
-        "insertSpaces": {
-          "type": "boolean",
-          "title": "Insert Spaces"
-        },
-        "tabSize": {
-          "type": "number",
-          "title": "Tab Size"
-        },
-        "wordWrapColumn": {
-          "type": "integer",
-          "title": "Word Wrap Column"
-        },
-        "rulers": {
-          "type": "array",
-          "title": "Rulers",
-          "items": {
-            "type": "number"
-          }
-        },
-        "codeFolding": {
-          "type": "boolean",
-          "title": "Code Folding"
-        },
-        "lineWiseCopyCut": {
-          "type": "boolean",
-          "title": "Line-wise Ctrl-C",
-          "description": "When enabled, which is the default, doing copy or cut when there is no selection will copy or cut the whole lines that have cursors on them."
-        }
-      },
-      "additionalProperties": false,
-      "type": "object"
-    }
-  },
   "properties": {
     "interactionMode": {
       "title": "Interaction mode",
@@ -190,24 +114,11 @@
     },
     "promptCellConfig": {
       "title": "Prompt Cell Configuration",
-      "description": "The configuration for all prompt cells.",
-      "$ref": "#/definitions/editorConfig",
+      "description": "The configuration for all prompt cells; it will override the CodeMirror default configuration.",
+      "type": "object",
       "default": {
-        "autoClosingBrackets": false,
-        "cursorBlinkRate": 530,
-        "fontFamily": null,
-        "fontSize": null,
-        "lineHeight": null,
-        "lineNumbers": false,
-        "lineWrap": "off",
-        "matchBrackets": true,
-        "readOnly": false,
-        "insertSpaces": true,
-        "tabSize": 4,
-        "wordWrapColumn": 80,
-        "rulers": [],
         "codeFolding": false,
-        "lineWiseCopyCut": true
+        "lineNumbers": false
       }
     }
   },
diff --git a/packages/console-extension/src/foreign.ts b/packages/console-extension/src/foreign.ts
index ba4e3696ae08..5674c052dc90 100644
--- a/packages/console-extension/src/foreign.ts
+++ b/packages/console-extension/src/foreign.ts
@@ -18,10 +18,11 @@ import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
 import { AttachedProperty } from '@lumino/properties';
 
 /**
- * The console widget tracker provider.
+ * The console foreign handler.
  */
 export const foreign: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/console-extension:foreign',
+  description: 'Add foreign handler of IOPub messages to the console.',
   requires: [IConsoleTracker, ISettingRegistry, ITranslator],
   optional: [ICommandPalette],
   activate: activateForeign,
diff --git a/packages/console-extension/src/index.ts b/packages/console-extension/src/index.ts
index c0dbc4d6b282..b8d06abbe8ff 100644
--- a/packages/console-extension/src/index.ts
+++ b/packages/console-extension/src/index.ts
@@ -14,28 +14,29 @@ import {
 import {
   Dialog,
   ICommandPalette,
+  IKernelStatusModel,
+  ISanitizer,
   ISessionContext,
   ISessionContextDialogs,
-  sessionContextDialogs,
+  Sanitizer,
+  SessionContextDialogs,
   showDialog,
   WidgetTracker
 } from '@jupyterlab/apputils';
-import { CodeEditor, IEditorServices } from '@jupyterlab/codeeditor';
+import {
+  CodeEditor,
+  IEditorServices,
+  IPositionModel
+} from '@jupyterlab/codeeditor';
+import { ICompletionProviderManager } from '@jupyterlab/completer';
 import { ConsolePanel, IConsoleTracker } from '@jupyterlab/console';
-import { IFileBrowserFactory } from '@jupyterlab/filebrowser';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
 import { ILauncher } from '@jupyterlab/launcher';
-import {
-  IEditMenu,
-  IFileMenu,
-  IHelpMenu,
-  IKernelMenu,
-  IMainMenu,
-  IRunMenu
-} from '@jupyterlab/mainmenu';
-import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
+import { IMainMenu } from '@jupyterlab/mainmenu';
+import { IRenderMime, IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { ITranslator } from '@jupyterlab/translation';
-import { consoleIcon } from '@jupyterlab/ui-components';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { consoleIcon, IFormRendererRegistry } from '@jupyterlab/ui-components';
 import { find } from '@lumino/algorithm';
 import {
   JSONExt,
@@ -45,7 +46,7 @@ import {
   UUID
 } from '@lumino/coreutils';
 import { DisposableSet } from '@lumino/disposable';
-import { DockLayout } from '@lumino/widgets';
+import { DockLayout, Widget } from '@lumino/widgets';
 import foreign from './foreign';
 
 /**
@@ -76,6 +77,8 @@ namespace CommandIDs {
 
   export const changeKernel = 'console:change-kernel';
 
+  export const getKernel = 'console:get-kernel';
+
   export const enterToExecute = 'console:enter-to-execute';
 
   export const shiftEnterToExecute = 'console:shift-enter-to-execute';
@@ -83,6 +86,12 @@ namespace CommandIDs {
   export const interactionMode = 'console:interaction-mode';
 
   export const replaceSelection = 'console:replace-selection';
+
+  export const shutdown = 'console:shutdown';
+
+  export const invokeCompleter = 'completer:invoke-console';
+
+  export const selectCompleter = 'completer:select-console';
 }
 
 /**
@@ -90,22 +99,24 @@ namespace CommandIDs {
  */
 const tracker: JupyterFrontEndPlugin<IConsoleTracker> = {
   id: '@jupyterlab/console-extension:tracker',
+  description: 'Provides the console widget tracker.',
   provides: IConsoleTracker,
   requires: [
     ConsolePanel.IContentFactory,
     IEditorServices,
     IRenderMimeRegistry,
-    ISettingRegistry,
-    ITranslator
+    ISettingRegistry
   ],
   optional: [
     ILayoutRestorer,
-    IFileBrowserFactory,
+    IDefaultFileBrowser,
     IMainMenu,
     ICommandPalette,
     ILauncher,
     ILabStatus,
-    ISessionContextDialogs
+    ISessionContextDialogs,
+    IFormRendererRegistry,
+    ITranslator
   ],
   activate: activateConsole,
   autoStart: true
@@ -116,6 +127,7 @@ const tracker: JupyterFrontEndPlugin<IConsoleTracker> = {
  */
 const factory: JupyterFrontEndPlugin<ConsolePanel.IContentFactory> = {
   id: '@jupyterlab/console-extension:factory',
+  description: 'Provides the console widget content factory.',
   provides: ConsolePanel.IContentFactory,
   requires: [IEditorServices],
   autoStart: true,
@@ -125,10 +137,103 @@ const factory: JupyterFrontEndPlugin<ConsolePanel.IContentFactory> = {
   }
 };
 
+/**
+ * Kernel status indicator.
+ */
+const kernelStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/console-extension:kernel-status',
+  description: 'Adds the console to the kernel status indicator model.',
+  autoStart: true,
+  requires: [IConsoleTracker, IKernelStatusModel],
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: IConsoleTracker,
+    kernelStatus: IKernelStatusModel
+  ) => {
+    const provider = (widget: Widget | null) => {
+      let session: ISessionContext | null = null;
+
+      if (widget && tracker.has(widget)) {
+        return (widget as ConsolePanel).sessionContext;
+      }
+
+      return session;
+    };
+
+    kernelStatus.addSessionProvider(provider);
+  }
+};
+
+/**
+ * Cursor position.
+ */
+const lineColStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/console-extension:cursor-position',
+  description: 'Adds the console to the code editor cursor position model.',
+  autoStart: true,
+  requires: [IConsoleTracker, IPositionModel],
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: IConsoleTracker,
+    positionModel: IPositionModel
+  ) => {
+    let previousWidget: ConsolePanel | null = null;
+
+    const provider = async (widget: Widget | null) => {
+      let editor: CodeEditor.IEditor | null = null;
+      if (widget !== previousWidget) {
+        previousWidget?.console.promptCellCreated.disconnect(
+          positionModel.update
+        );
+
+        previousWidget = null;
+        if (widget && tracker.has(widget)) {
+          (widget as ConsolePanel).console.promptCellCreated.connect(
+            positionModel.update
+          );
+          const promptCell = (widget as ConsolePanel).console.promptCell;
+          editor = null;
+          if (promptCell) {
+            await promptCell.ready;
+            editor = promptCell.editor;
+          }
+          previousWidget = widget as ConsolePanel;
+        }
+      } else if (widget) {
+        const promptCell = (widget as ConsolePanel).console.promptCell;
+        editor = null;
+        if (promptCell) {
+          await promptCell.ready;
+          editor = promptCell.editor;
+        }
+      }
+      return editor;
+    };
+
+    positionModel.addEditorProvider(provider);
+  }
+};
+
+const completerPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/console-extension:completer',
+  description: 'Adds completion to the console.',
+  autoStart: true,
+  requires: [IConsoleTracker],
+  optional: [ICompletionProviderManager, ITranslator, ISanitizer],
+  activate: activateConsoleCompleterService
+};
+
 /**
  * Export the plugins as the default.
  */
-const plugins: JupyterFrontEndPlugin<any>[] = [factory, tracker, foreign];
+const plugins: JupyterFrontEndPlugin<any>[] = [
+  factory,
+  tracker,
+  foreign,
+  kernelStatus,
+  lineColStatus,
+  completerPlugin
+];
 export default plugins;
 
 /**
@@ -140,20 +245,23 @@ async function activateConsole(
   editorServices: IEditorServices,
   rendermime: IRenderMimeRegistry,
   settingRegistry: ISettingRegistry,
-  translator: ITranslator,
   restorer: ILayoutRestorer | null,
-  browserFactory: IFileBrowserFactory | null,
+  filebrowser: IDefaultFileBrowser | null,
   mainMenu: IMainMenu | null,
   palette: ICommandPalette | null,
   launcher: ILauncher | null,
   status: ILabStatus | null,
-  sessionDialogs: ISessionContextDialogs | null
+  sessionDialogs_: ISessionContextDialogs | null,
+  formRegistry: IFormRendererRegistry | null,
+  translator_: ITranslator | null
 ): Promise<IConsoleTracker> {
+  const translator = translator_ ?? nullTranslator;
   const trans = translator.load('jupyterlab');
   const manager = app.serviceManager;
   const { commands, shell } = app;
   const category = trans.__('Console');
-  sessionDialogs = sessionDialogs ?? sessionContextDialogs;
+  const sessionDialogs =
+    sessionDialogs_ ?? new SessionContextDialogs({ translator });
 
   // Create a widget tracker for all console panels.
   const tracker = new WidgetTracker<ConsolePanel>({
@@ -240,6 +348,15 @@ async function activateConsole(
      * to the main area relative to a reference widget.
      */
     insertMode?: DockLayout.InsertMode;
+
+    /**
+     * Type of widget to open
+     *
+     * #### Notes
+     * This is the key used to load user layout customization.
+     * Its typical value is: a factory name or the widget id (if singleton)
+     */
+    type?: string;
   }
 
   /**
@@ -253,6 +370,7 @@ async function activateConsole(
       contentFactory,
       mimeTypeService: editorServices.mimeTypeService,
       rendermime,
+      sessionDialogs,
       translator,
       setBusy: (status && (() => status.setBusy())) ?? undefined,
       ...(options as Partial<ConsolePanel.IOptions>)
@@ -276,99 +394,15 @@ async function activateConsole(
     shell.add(panel, 'main', {
       ref: options.ref,
       mode: options.insertMode,
-      activate: options.activate !== false
+      activate: options.activate !== false,
+      type: options.type ?? 'Console'
     });
     return panel;
   }
 
-  type lineWrap_type = 'off' | 'on' | 'wordWrapColumn' | 'bounded';
-
-  const mapOption = (
-    editor: CodeEditor.IEditor,
-    config: JSONObject,
-    option: string
-  ) => {
-    if (config[option] === undefined) {
-      return;
-    }
-    switch (option) {
-      case 'autoClosingBrackets':
-        editor.setOption(
-          'autoClosingBrackets',
-          config['autoClosingBrackets'] as boolean
-        );
-        break;
-      case 'cursorBlinkRate':
-        editor.setOption(
-          'cursorBlinkRate',
-          config['cursorBlinkRate'] as number
-        );
-        break;
-      case 'fontFamily':
-        editor.setOption('fontFamily', config['fontFamily'] as string | null);
-        break;
-      case 'fontSize':
-        editor.setOption('fontSize', config['fontSize'] as number | null);
-        break;
-      case 'lineHeight':
-        editor.setOption('lineHeight', config['lineHeight'] as number | null);
-        break;
-      case 'lineNumbers':
-        editor.setOption('lineNumbers', config['lineNumbers'] as boolean);
-        break;
-      case 'lineWrap':
-        editor.setOption('lineWrap', config['lineWrap'] as lineWrap_type);
-        break;
-      case 'matchBrackets':
-        editor.setOption('matchBrackets', config['matchBrackets'] as boolean);
-        break;
-      case 'readOnly':
-        editor.setOption('readOnly', config['readOnly'] as boolean);
-        break;
-      case 'insertSpaces':
-        editor.setOption('insertSpaces', config['insertSpaces'] as boolean);
-        break;
-      case 'tabSize':
-        editor.setOption('tabSize', config['tabSize'] as number);
-        break;
-      case 'wordWrapColumn':
-        editor.setOption('wordWrapColumn', config['wordWrapColumn'] as number);
-        break;
-      case 'rulers':
-        editor.setOption('rulers', config['rulers'] as number[]);
-        break;
-      case 'codeFolding':
-        editor.setOption('codeFolding', config['codeFolding'] as boolean);
-        break;
-    }
-  };
-
-  const setOption = (
-    editor: CodeEditor.IEditor | undefined,
-    config: JSONObject
-  ) => {
-    if (editor === undefined) {
-      return;
-    }
-    mapOption(editor, config, 'autoClosingBrackets');
-    mapOption(editor, config, 'cursorBlinkRate');
-    mapOption(editor, config, 'fontFamily');
-    mapOption(editor, config, 'fontSize');
-    mapOption(editor, config, 'lineHeight');
-    mapOption(editor, config, 'lineNumbers');
-    mapOption(editor, config, 'lineWrap');
-    mapOption(editor, config, 'matchBrackets');
-    mapOption(editor, config, 'readOnly');
-    mapOption(editor, config, 'insertSpaces');
-    mapOption(editor, config, 'tabSize');
-    mapOption(editor, config, 'wordWrapColumn');
-    mapOption(editor, config, 'rulers');
-    mapOption(editor, config, 'codeFolding');
-  };
-
   const pluginId = '@jupyterlab/console-extension:tracker';
   let interactionMode: string;
-  let promptCellConfig: JSONObject;
+  let promptCellConfig: JSONObject = {};
 
   /**
    * Update settings for one console or all consoles.
@@ -386,7 +420,7 @@ async function activateConsole(
       // Update future promptCells
       widget.console.editorConfig = promptCellConfig;
       // Update promptCell already on screen
-      setOption(widget.console.promptCell?.editor, promptCellConfig);
+      widget.console.promptCell?.editor?.setOptions(promptCellConfig);
     };
 
     if (panel) {
@@ -403,6 +437,18 @@ async function activateConsole(
   });
   await updateSettings();
 
+  if (formRegistry) {
+    const CMRenderer = formRegistry.getRenderer(
+      '@jupyterlab/codemirror-extension:plugin.defaultConfig'
+    );
+    if (CMRenderer) {
+      formRegistry.addRenderer(
+        '@jupyterlab/console-extension:tracker.promptCellConfig',
+        CMRenderer
+      );
+    }
+  }
+
   // Apply settings when a console is created.
   tracker.widgetAdded.connect((sender, panel) => {
     void updateSettings(panel);
@@ -441,6 +487,7 @@ async function activateConsole(
 
   let command = CommandIDs.open;
   commands.addCommand(command, {
+    label: trans.__('Open a console for the provided `path`.'),
     execute: (args: IOpenOptions) => {
       const path = args['path'];
       const widget = tracker.find(value => {
@@ -487,7 +534,7 @@ async function activateConsole(
       const basePath =
         ((args['basePath'] as string) ||
           (args['cwd'] as string) ||
-          browserFactory?.defaultBrowser.model.path) ??
+          filebrowser?.model.path) ??
         '';
       return createConsole({ basePath, ...args });
     }
@@ -586,14 +633,23 @@ async function activateConsole(
       if (!current) {
         return;
       }
-      return sessionDialogs!.restart(
-        current.console.sessionContext,
-        translator
-      );
+      return sessionDialogs.restart(current.console.sessionContext);
     },
     isEnabled
   });
 
+  commands.addCommand(CommandIDs.shutdown, {
+    label: trans.__('Shut Down'),
+    execute: args => {
+      const current = getCurrent(args);
+      if (!current) {
+        return;
+      }
+
+      return current.console.sessionContext.shutdown();
+    }
+  });
+
   commands.addCommand(CommandIDs.closeAndShutdown, {
     label: trans.__('Close and Shut Down…'),
     execute: args => {
@@ -607,13 +663,22 @@ async function activateConsole(
           'Are you sure you want to close "%1"?',
           current.title.label
         ),
-        buttons: [Dialog.cancelButton(), Dialog.warnButton()]
+        buttons: [
+          Dialog.cancelButton({
+            ariaLabel: trans.__('Cancel console Shut Down')
+          }),
+          Dialog.warnButton({
+            ariaLabel: trans.__('Confirm console Shut Down')
+          })
+        ]
       }).then(result => {
         if (result.button.accept) {
-          return current.console.sessionContext.shutdown().then(() => {
-            current.dispose();
-            return true;
-          });
+          return commands
+            .execute(CommandIDs.shutdown, { activate: false })
+            .then(() => {
+              current.dispose();
+              return true;
+            });
         } else {
           return false;
         }
@@ -623,6 +688,7 @@ async function activateConsole(
   });
 
   commands.addCommand(CommandIDs.inject, {
+    label: trans.__('Inject some code in a console.'),
     execute: args => {
       const path = args['path'];
       tracker.find(widget => {
@@ -649,10 +715,19 @@ async function activateConsole(
       if (!current) {
         return;
       }
-      return sessionDialogs!.selectKernel(
-        current.console.sessionContext,
-        translator
-      );
+      return sessionDialogs.selectKernel(current.console.sessionContext);
+    },
+    isEnabled
+  });
+
+  commands.addCommand(CommandIDs.getKernel, {
+    label: trans.__('Get Kernel'),
+    execute: args => {
+      const current = getCurrent({ activate: false, ...args });
+      if (!current) {
+        return;
+      }
+      return current.sessionContext.session?.kernel;
     },
     isEnabled
   });
@@ -677,75 +752,49 @@ async function activateConsole(
   if (mainMenu) {
     // Add a close and shutdown command to the file menu.
     mainMenu.fileMenu.closeAndCleaners.add({
-      tracker,
-      closeAndCleanupLabel: (n: number) => trans.__('Shutdown Console'),
-      closeAndCleanup: (current: ConsolePanel) => {
-        return showDialog({
-          title: trans.__('Shut down the Console?'),
-          body: trans.__(
-            'Are you sure you want to close "%1"?',
-            current.title.label
-          ),
-          buttons: [Dialog.cancelButton(), Dialog.warnButton()]
-        }).then(result => {
-          if (result.button.accept) {
-            return current.console.sessionContext.shutdown().then(() => {
-              current.dispose();
-            });
-          } else {
-            return void 0;
-          }
-        });
-      }
-    } as IFileMenu.ICloseAndCleaner<ConsolePanel>);
+      id: CommandIDs.closeAndShutdown,
+      isEnabled
+    });
 
     // Add a kernel user to the Kernel menu
-    mainMenu.kernelMenu.kernelUsers.add({
-      tracker,
-      restartKernelAndClearLabel: n =>
-        trans.__('Restart Kernel and Clear Console'),
-      interruptKernel: current => {
-        const kernel = current.console.sessionContext.session?.kernel;
-        if (kernel) {
-          return kernel.interrupt();
-        }
-        return Promise.resolve(void 0);
-      },
-      restartKernel: current =>
-        sessionDialogs!.restart(current.console.sessionContext, translator),
-      restartKernelAndClear: current => {
-        return sessionDialogs!
-          .restart(current.console.sessionContext)
-          .then(restarted => {
-            if (restarted) {
-              current.console.clear();
-            }
-            return restarted;
-          });
-      },
-      changeKernel: current =>
-        sessionDialogs!.selectKernel(
-          current.console.sessionContext,
-          translator
-        ),
-      shutdownKernel: current => current.console.sessionContext.shutdown()
-    } as IKernelMenu.IKernelUser<ConsolePanel>);
+    mainMenu.kernelMenu.kernelUsers.changeKernel.add({
+      id: CommandIDs.changeKernel,
+      isEnabled
+    });
+    mainMenu.kernelMenu.kernelUsers.clearWidget.add({
+      id: CommandIDs.clear,
+      isEnabled
+    });
+    mainMenu.kernelMenu.kernelUsers.interruptKernel.add({
+      id: CommandIDs.interrupt,
+      isEnabled
+    });
+    mainMenu.kernelMenu.kernelUsers.restartKernel.add({
+      id: CommandIDs.restart,
+      isEnabled
+    });
+    mainMenu.kernelMenu.kernelUsers.shutdownKernel.add({
+      id: CommandIDs.shutdown,
+      isEnabled
+    });
 
     // Add a code runner to the Run menu.
-    mainMenu.runMenu.codeRunners.add({
-      tracker,
-      runLabel: (n: number) => trans.__('Run Cell'),
-      run: current => current.console.execute(true)
-    } as IRunMenu.ICodeRunner<ConsolePanel>);
+    mainMenu.runMenu.codeRunners.run.add({
+      id: CommandIDs.runForced,
+      isEnabled
+    });
 
     // Add a clearer to the edit menu
-    mainMenu.editMenu.clearers.add({
-      tracker,
-      clearCurrentLabel: (n: number) => trans.__('Clear Console Cell'),
-      clearCurrent: (current: ConsolePanel) => {
-        return current.console.clear();
-      }
-    } as IEditMenu.IClearer<ConsolePanel>);
+    mainMenu.editMenu.clearers.clearCurrent.add({
+      id: CommandIDs.clear,
+      isEnabled
+    });
+
+    // Add kernel information to the application help menu.
+    mainMenu.helpMenu.getKernel.add({
+      id: CommandIDs.getKernel,
+      isEnabled
+    });
   }
 
   // For backwards compatibility and clarity, we explicitly label the run
@@ -760,7 +809,9 @@ async function activateConsole(
 
   // Add the execute keystroke setting submenu.
   commands.addCommand(CommandIDs.interactionMode, {
-    label: args => runShortcutTitles[args['interactionMode'] as string] || '',
+    label: args =>
+      runShortcutTitles[args['interactionMode'] as string] ??
+      'Set the console interaction mode.',
     execute: async args => {
       const key = 'keyMap';
       try {
@@ -776,13 +827,83 @@ async function activateConsole(
     isToggled: args => args['interactionMode'] === interactionMode
   });
 
-  if (mainMenu) {
-    // Add kernel information to the application help menu.
-    mainMenu.helpMenu.kernelUsers.add({
-      tracker,
-      getKernel: current => current.sessionContext.session?.kernel
-    } as IHelpMenu.IKernelUser<ConsolePanel>);
+  return tracker;
+}
+
+/**
+ * Activate the completer service for console.
+ */
+function activateConsoleCompleterService(
+  app: JupyterFrontEnd,
+  consoles: IConsoleTracker,
+  manager: ICompletionProviderManager | null,
+  translator: ITranslator | null,
+  appSanitizer: IRenderMime.ISanitizer | null
+): void {
+  if (!manager) {
+    return;
   }
 
-  return tracker;
+  const trans = (translator ?? nullTranslator).load('jupyterlab');
+  const sanitizer = appSanitizer ?? new Sanitizer();
+
+  app.commands.addCommand(CommandIDs.invokeCompleter, {
+    label: trans.__('Display the completion helper.'),
+    execute: () => {
+      const id = consoles.currentWidget && consoles.currentWidget.id;
+
+      if (id) {
+        return manager.invoke(id);
+      }
+    }
+  });
+
+  app.commands.addCommand(CommandIDs.selectCompleter, {
+    label: trans.__('Select the completion suggestion.'),
+    execute: () => {
+      const id = consoles.currentWidget && consoles.currentWidget.id;
+
+      if (id) {
+        return manager.select(id);
+      }
+    }
+  });
+
+  app.commands.addKeyBinding({
+    command: CommandIDs.selectCompleter,
+    keys: ['Enter'],
+    selector: '.jp-ConsolePanel .jp-mod-completer-active'
+  });
+  const updateCompleter = async (_: any, consolePanel: ConsolePanel) => {
+    const completerContext = {
+      editor: consolePanel.console.promptCell?.editor ?? null,
+      session: consolePanel.console.sessionContext.session,
+      widget: consolePanel
+    };
+    await manager.updateCompleter(completerContext);
+    consolePanel.console.promptCellCreated.connect((codeConsole, cell) => {
+      const newContext = {
+        editor: cell.editor,
+        session: codeConsole.sessionContext.session,
+        widget: consolePanel,
+        sanitzer: sanitizer
+      };
+      manager.updateCompleter(newContext).catch(console.error);
+    });
+    consolePanel.console.sessionContext.sessionChanged.connect(() => {
+      const newContext = {
+        editor: consolePanel.console.promptCell?.editor ?? null,
+        session: consolePanel.console.sessionContext.session,
+        widget: consolePanel,
+        sanitizer: sanitizer
+      };
+      manager.updateCompleter(newContext).catch(console.error);
+    });
+  };
+  consoles.widgetAdded.connect(updateCompleter);
+  manager.activeProvidersChanged.connect(() => {
+    consoles.forEach(consoleWidget => {
+      updateCompleter(undefined, consoleWidget).catch(e => console.error(e));
+    });
+  });
 }
diff --git a/packages/console-extension/style/index.css b/packages/console-extension/style/index.css
index 713715de3185..daba0403a78e 100644
--- a/packages/console-extension/style/index.css
+++ b/packages/console-extension/style/index.css
@@ -10,6 +10,7 @@
 @import url('~@jupyterlab/codeeditor/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/completer/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
 @import url('~@jupyterlab/console/style/index.css');
 @import url('~@jupyterlab/launcher/style/index.css');
diff --git a/packages/console-extension/style/index.js b/packages/console-extension/style/index.js
index e5438b9ef9a3..c001b3973c43 100644
--- a/packages/console-extension/style/index.js
+++ b/packages/console-extension/style/index.js
@@ -10,6 +10,7 @@ import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/completer/style/index.js';
 import '@jupyterlab/filebrowser/style/index.js';
 import '@jupyterlab/console/style/index.js';
 import '@jupyterlab/launcher/style/index.js';
diff --git a/packages/console-extension/tsconfig.json b/packages/console-extension/tsconfig.json
index cb34ade13e23..9464f3d11f93 100644
--- a/packages/console-extension/tsconfig.json
+++ b/packages/console-extension/tsconfig.json
@@ -15,6 +15,9 @@
     {
       "path": "../codeeditor"
     },
+    {
+      "path": "../completer"
+    },
     {
       "path": "../console"
     },
diff --git a/packages/console/.vscode/launch.json b/packages/console/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/console/.vscode/launch.json
+++ b/packages/console/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/console/babel.config.js b/packages/console/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/console/babel.config.js
+++ b/packages/console/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/console/jest.config.js b/packages/console/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/console/jest.config.js
+++ b/packages/console/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/console/package.json b/packages/console/package.json
index 09091d8c1f07..6040f98dddbb 100644
--- a/packages/console/package.json
+++ b/packages/console/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/console",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Code Console",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,38 +37,40 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "test:watch": "npm run test -- --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/console/src/foreign.ts b/packages/console/src/foreign.ts
index c997e1aacce1..77c22206c887 100644
--- a/packages/console/src/foreign.ts
+++ b/packages/console/src/foreign.ts
@@ -99,7 +99,7 @@ export class ForeignHandler implements IDisposable {
         cell = this._newCell(parentMsgId);
         const model = cell.model;
         model.executionCount = inputMsg.content.execution_count;
-        model.value.text = inputMsg.content.code;
+        model.sharedModel.setSource(inputMsg.content.code);
         model.trusted = true;
         parent.update();
         return true;
diff --git a/packages/console/src/history.ts b/packages/console/src/history.ts
index 630062cc31e6..dbec0c419cdd 100644
--- a/packages/console/src/history.ts
+++ b/packages/console/src/history.ts
@@ -14,7 +14,7 @@ export interface IConsoleHistory extends IDisposable {
   /**
    * The session context used by the foreign handler.
    */
-  readonly sessionContext: ISessionContext;
+  readonly sessionContext: ISessionContext | null;
 
   /**
    * The current editor used by the history widget.
@@ -74,15 +74,18 @@ export class ConsoleHistory implements IConsoleHistory {
    * Construct a new console history object.
    */
   constructor(options: ConsoleHistory.IOptions) {
-    this.sessionContext = options.sessionContext;
-    void this._handleKernel();
-    this.sessionContext.kernelChanged.connect(this._handleKernel, this);
+    const { sessionContext } = options;
+    if (sessionContext) {
+      this.sessionContext = sessionContext;
+      void this._handleKernel();
+      this.sessionContext.kernelChanged.connect(this._handleKernel, this);
+    }
   }
 
   /**
    * The client session used by the foreign handler.
    */
-  readonly sessionContext: ISessionContext;
+  readonly sessionContext: ISessionContext | null;
 
   /**
    * The current editor used by the history manager.
@@ -98,14 +101,14 @@ export class ConsoleHistory implements IConsoleHistory {
     const prev = this._editor;
     if (prev) {
       prev.edgeRequested.disconnect(this.onEdgeRequest, this);
-      prev.model.value.changed.disconnect(this.onTextChange, this);
+      prev.model.sharedModel.changed.disconnect(this.onTextChange, this);
     }
 
     this._editor = value;
 
     if (value) {
       value.edgeRequested.connect(this.onEdgeRequest, this);
-      value.model.value.changed.connect(this.onTextChange, this);
+      value.model.sharedModel.changed.connect(this.onTextChange, this);
     }
   }
 
@@ -250,19 +253,19 @@ export class ConsoleHistory implements IConsoleHistory {
     editor: CodeEditor.IEditor,
     location: CodeEditor.EdgeLocation
   ): void {
-    const model = editor.model;
-    const source = model.value.text;
+    const sharedModel = editor.model.sharedModel;
+    const source = sharedModel.getSource();
 
     if (location === 'top' || location === 'topLine') {
       void this.back(source).then(value => {
         if (this.isDisposed || !value) {
           return;
         }
-        if (model.value.text === value) {
+        if (sharedModel.getSource() === value) {
           return;
         }
         this._setByHistory = true;
-        model.value.text = value;
+        sharedModel.setSource(value);
         let columnPos = 0;
         columnPos = value.indexOf('\n');
         if (columnPos < 0) {
@@ -276,11 +279,11 @@ export class ConsoleHistory implements IConsoleHistory {
           return;
         }
         const text = value || this.placeholder;
-        if (model.value.text === text) {
+        if (sharedModel.getSource() === text) {
           return;
         }
         this._setByHistory = true;
-        model.value.text = text;
+        sharedModel.setSource(text);
         const pos = editor.getPositionAt(text.length);
         if (pos) {
           editor.setCursorPosition(pos);
@@ -293,7 +296,7 @@ export class ConsoleHistory implements IConsoleHistory {
    * Handle the current kernel changing.
    */
   private async _handleKernel(): Promise<void> {
-    const kernel = this.sessionContext.session?.kernel;
+    const kernel = this.sessionContext?.session?.kernel;
     if (!kernel) {
       this._history.length = 0;
       return;
@@ -350,7 +353,7 @@ export namespace ConsoleHistory {
     /**
      * The client session used by the foreign handler.
      */
-    sessionContext: ISessionContext;
+    sessionContext?: ISessionContext;
   }
 }
 
diff --git a/packages/console/src/panel.ts b/packages/console/src/panel.ts
index a1bfc1ff6105..4c4bd0731330 100644
--- a/packages/console/src/panel.ts
+++ b/packages/console/src/panel.ts
@@ -5,10 +5,10 @@ import {
   ISessionContext,
   MainAreaWidget,
   SessionContext,
-  sessionContextDialogs
+  SessionContextDialogs
 } from '@jupyterlab/apputils';
 import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
-import { PathExt, Time, URLExt } from '@jupyterlab/coreutils';
+import { PathExt, Time } from '@jupyterlab/coreutils';
 import {
   IRenderMimeRegistry,
   RenderMimeRegistry
@@ -48,22 +48,21 @@ export class ConsolePanel extends MainAreaWidget<Panel> {
       sessionContext,
       translator
     } = options;
-    this.translator = translator || nullTranslator;
+    this.translator = translator ?? nullTranslator;
     const trans = this.translator.load('jupyterlab');
 
-    const contentFactory = (this.contentFactory =
-      options.contentFactory || ConsolePanel.defaultContentFactory);
+    const contentFactory = (this.contentFactory = options.contentFactory);
     const count = Private.count++;
     if (!path) {
-      path = URLExt.join(basePath || '', `console-${count}-${UUID.uuid4()}`);
+      path = PathExt.join(basePath || '', `console-${count}-${UUID.uuid4()}`);
     }
 
     sessionContext = this._sessionContext =
-      sessionContext ||
+      sessionContext ??
       new SessionContext({
         sessionManager: manager.sessions,
         specsManager: manager.kernelspecs,
-        path,
+        path: manager.contents.localPath(path),
         name: name || trans.__('Console %1', count),
         type: 'console',
         kernelPreference: options.kernelPreference,
@@ -71,7 +70,7 @@ export class ConsolePanel extends MainAreaWidget<Panel> {
       });
 
     const resolver = new RenderMimeRegistry.UrlResolver({
-      session: sessionContext,
+      path,
       contents: manager.contents
     });
     rendermime = rendermime.clone({ resolver });
@@ -81,13 +80,16 @@ export class ConsolePanel extends MainAreaWidget<Panel> {
       sessionContext: sessionContext,
       mimeTypeService,
       contentFactory,
-      modelFactory
+      modelFactory,
+      translator
     });
     this.content.addWidget(this.console);
 
     void sessionContext.initialize().then(async value => {
       if (value) {
-        await sessionContextDialogs.selectKernel(sessionContext!);
+        await (
+          options.sessionDialogs ?? new SessionContextDialogs({ translator })
+        ).selectKernel(sessionContext!);
       }
       this._connected = new Date();
       this._updateTitlePanel();
@@ -135,7 +137,7 @@ export class ConsolePanel extends MainAreaWidget<Panel> {
   protected onActivateRequest(msg: Message): void {
     const prompt = this.console.promptCell;
     if (prompt) {
-      prompt.editor.focus();
+      prompt.editor!.focus();
     }
   }
 
@@ -216,6 +218,11 @@ export namespace ConsolePanel {
      */
     sessionContext?: ISessionContext;
 
+    /**
+     * Session dialogs to use.
+     */
+    sessionDialogs?: ISessionContext.IDialogs;
+
     /**
      * The model factory for the console widget.
      */
@@ -252,7 +259,8 @@ export namespace ConsolePanel {
    */
   export class ContentFactory
     extends CodeConsole.ContentFactory
-    implements IContentFactory {
+    implements IContentFactory
+  {
     /**
      * Create a new console panel.
      */
@@ -271,19 +279,13 @@ export namespace ConsolePanel {
     export interface IOptions extends CodeConsole.ContentFactory.IOptions {}
   }
 
-  /**
-   * A default code console content factory.
-   */
-  export const defaultContentFactory: IContentFactory = new ContentFactory();
-
-  /* tslint:disable */
   /**
    * The console renderer token.
    */
   export const IContentFactory = new Token<IContentFactory>(
-    '@jupyterlab/console:IContentFactory'
+    '@jupyterlab/console:IContentFactory',
+    'A factory object that creates new code consoles. Use this if you want to create and host code consoles in your own UI elements.'
   );
-  /* tslint:enable */
 }
 
 /**
@@ -303,7 +305,7 @@ namespace Private {
     connected: Date | null,
     executed: Date | null,
     translator?: ITranslator
-  ) {
+  ): void {
     translator = translator || nullTranslator;
     const trans = translator.load('jupyterlab');
 
diff --git a/packages/console/src/tokens.ts b/packages/console/src/tokens.ts
index 0e58081af4b6..7bb1771897b7 100644
--- a/packages/console/src/tokens.ts
+++ b/packages/console/src/tokens.ts
@@ -5,14 +5,15 @@ import { IWidgetTracker } from '@jupyterlab/apputils';
 import { Token } from '@lumino/coreutils';
 import { ConsolePanel } from './panel';
 
-/* tslint:disable */
 /**
  * The console tracker token.
  */
 export const IConsoleTracker = new Token<IConsoleTracker>(
-  '@jupyterlab/console:IConsoleTracker'
+  '@jupyterlab/console:IConsoleTracker',
+  `A widget tracker for code consoles.
+  Use this if you want to be able to iterate over and interact with code consoles
+  created by the application.`
 );
-/* tslint:enable */
 
 /**
  * A class that tracks console widgets.
diff --git a/packages/console/src/widget.ts b/packages/console/src/widget.ts
index e1f5743cae81..b3fdb0c8677d 100644
--- a/packages/console/src/widget.ts
+++ b/packages/console/src/widget.ts
@@ -1,11 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { Prec } from '@codemirror/state';
+import { EditorView } from '@codemirror/view';
+import { createStandaloneCell, ISharedRawCell } from '@jupyter/ydoc';
 import { ISessionContext } from '@jupyterlab/apputils';
 import {
+  AttachmentsCellModel,
   Cell,
   CellDragUtils,
-  CellModel,
   CodeCell,
   CodeCellModel,
   ICodeCellModel,
@@ -14,12 +17,12 @@ import {
   RawCell,
   RawCellModel
 } from '@jupyterlab/cells';
-import { CodeEditor, IEditorMimeTypeService } from '@jupyterlab/codeeditor';
+import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
 import * as nbformat from '@jupyterlab/nbformat';
 import { IObservableList, ObservableList } from '@jupyterlab/observables';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { KernelMessage } from '@jupyterlab/services';
-import { each } from '@lumino/algorithm';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { JSONObject, MimeData } from '@lumino/coreutils';
 import { Drag } from '@lumino/dragdrop';
 import { Message } from '@lumino/messaging';
@@ -90,6 +93,7 @@ export class CodeConsole extends Widget {
    */
   constructor(options: CodeConsole.IOptions) {
     super();
+    this._translator = options.translator ?? nullTranslator;
     this.addClass(CONSOLE_CLASS);
     this.node.dataset[KERNEL_USER] = 'true';
     this.node.dataset[CODE_RUNNER] = 'true';
@@ -101,9 +105,8 @@ export class CodeConsole extends Widget {
     this._content = new Panel();
     this._input = new Panel();
 
-    this.contentFactory =
-      options.contentFactory || CodeConsole.defaultContentFactory;
-    this.modelFactory = options.modelFactory || CodeConsole.defaultModelFactory;
+    this.contentFactory = options.contentFactory;
+    this.modelFactory = options.modelFactory ?? CodeConsole.defaultModelFactory;
     this.rendermime = options.rendermime;
     this.sessionContext = options.sessionContext;
     this._mimeTypeService = options.mimeTypeService;
@@ -166,7 +169,7 @@ export class CodeConsole extends Widget {
   /**
    * The configuration options for the text editor widget.
    */
-  editorConfig?: Partial<CodeEditor.IConfig>;
+  editorConfig: Record<string, any> = CodeConsole.defaultEditorConfig;
 
   /**
    * The list of content cells in the console.
@@ -200,7 +203,7 @@ export class CodeConsole extends Widget {
    * rendered code cell widgets and does not execute them (though it can store
    * the execution message id).
    */
-  addCell(cell: CodeCell, msgId?: string) {
+  addCell(cell: CodeCell, msgId?: string): void {
     cell.addClass(CONSOLE_CELL_CLASS);
     this._content.addWidget(cell);
     this._cells.push(cell);
@@ -215,7 +218,7 @@ export class CodeConsole extends Widget {
   /**
    * Add a banner cell.
    */
-  addBanner() {
+  addBanner(): void {
     if (this._banner) {
       // An old banner just becomes a normal cell now.
       const cell = this._banner;
@@ -223,12 +226,33 @@ export class CodeConsole extends Widget {
       cell.disposed.connect(this._onCellDisposed, this);
     }
     // Create the banner.
-    const model = this.modelFactory.createRawCell({});
-    model.value.text = '...';
+    const model = this.modelFactory.createRawCell({
+      sharedModel: createStandaloneCell({
+        cell_type: 'raw',
+        source: '...'
+      }) as ISharedRawCell
+    });
     const banner = (this._banner = new RawCell({
       model,
       contentFactory: this.contentFactory,
-      placeholder: false
+      placeholder: false,
+      editorConfig: {
+        autoClosingBrackets: false,
+        codeFolding: false,
+        highlightActiveLine: false,
+        highlightTrailingWhitespace: false,
+        highlightWhitespace: false,
+        indentUnit: '4',
+        lineNumbers: false,
+        lineWrap: true,
+        matchBrackets: false,
+        readOnly: true,
+        rulers: [],
+        scrollPastEnd: false,
+        smartIndent: false,
+        tabSize: 4,
+        theme: 'jupyter'
+      }
     })).initializeState();
     banner.addClass(BANNER_CLASS);
     banner.readOnly = true;
@@ -261,16 +285,14 @@ export class CodeConsole extends Widget {
   /**
    * Dispose of the resources held by the widget.
    */
-  dispose() {
+  dispose(): void {
     // Do nothing if already disposed.
     if (this.isDisposed) {
       return;
     }
-    this._cells.clear();
     this._msgIdCells = null!;
     this._msgIds = null!;
     this._history.dispose();
-
     super.dispose();
   }
 
@@ -310,11 +332,11 @@ export class CodeConsole extends Widget {
     if (shouldExecute) {
       // Create a new prompt cell before kernel execution to allow typeahead.
       this.newPromptCell();
-      this.promptCell!.editor.focus();
+      this.promptCell!.editor!.focus();
       await this._execute(promptCell);
     } else {
       // add a newline if we shouldn't execute
-      promptCell.editor.newIndentedLine();
+      promptCell.editor!.newIndentedLine();
     }
   }
 
@@ -336,9 +358,9 @@ export class CodeConsole extends Widget {
    */
   inject(code: string, metadata: JSONObject = {}): Promise<void> {
     const cell = this.createCodeCell();
-    cell.model.value.text = code;
+    cell.model.sharedModel.setSource(code);
     for (const key of Object.keys(metadata)) {
-      cell.model.metadata.set(key, metadata[key]);
+      cell.model.setMetadata(key, metadata[key]);
     }
     this.addCell(cell);
     return this._execute(cell);
@@ -352,7 +374,7 @@ export class CodeConsole extends Widget {
     if (!promptCell) {
       return;
     }
-    promptCell.editor.newIndentedLine();
+    promptCell.editor!.newIndentedLine();
   }
 
   /**
@@ -365,7 +387,7 @@ export class CodeConsole extends Widget {
     if (!promptCell) {
       return;
     }
-    promptCell.editor.replaceSelection?.(text);
+    promptCell.editor!.replaceSelection?.(text);
   }
 
   /**
@@ -377,12 +399,12 @@ export class CodeConsole extends Widget {
    */
   serialize(): nbformat.ICodeCell[] {
     const cells: nbformat.ICodeCell[] = [];
-    each(this._cells, cell => {
+    for (const cell of this._cells) {
       const model = cell.model;
       if (isCodeCellModel(model)) {
         cells.push(model.toJSON());
       }
-    });
+    }
 
     if (this.promptCell) {
       cells.push(this.promptCell.model.toJSON());
@@ -428,10 +450,8 @@ export class CodeConsole extends Widget {
 
     const cell = this._cells.get(cellIndex);
 
-    const targetArea: CellDragUtils.ICellTargetArea = CellDragUtils.detectTargetArea(
-      cell,
-      event.target as HTMLElement
-    );
+    const targetArea: CellDragUtils.ICellTargetArea =
+      CellDragUtils.detectTargetArea(cell, event.target as HTMLElement);
 
     if (targetArea === 'prompt') {
       this._dragData = {
@@ -491,7 +511,7 @@ export class CodeConsole extends Widget {
     });
 
     this._drag.mimeData.setData(JUPYTER_CELL_MIME, selected);
-    const textContent = cellModel.value.text;
+    const textContent = cellModel.sharedModel.getSource();
     this._drag.mimeData.setData('text/plain', textContent);
 
     this._focusedCell = null;
@@ -548,7 +568,7 @@ export class CodeConsole extends Widget {
     if (!this.promptCell) {
       this.newPromptCell();
     } else {
-      this.promptCell.editor.focus();
+      this.promptCell.editor!.focus();
       this.update();
     }
   }
@@ -585,6 +605,8 @@ export class CodeConsole extends Widget {
       promptCell.readOnly = true;
       promptCell.removeClass(PROMPT_CLASS);
       Signal.clearData(promptCell.editor);
+      // Ensure to clear the cursor
+      promptCell.editor?.blur();
       const child = input.widgets[0];
       child.parent = null;
       this.addCell(promptCell);
@@ -600,11 +622,7 @@ export class CodeConsole extends Widget {
     // Add the prompt cell to the DOM, making `this.promptCell` valid again.
     this._input.addWidget(promptCell);
 
-    // Suppress the default "Enter" key handling.
-    const editor = promptCell.editor;
-    editor.addKeydownHandler(this._onEditorKeydown);
-
-    this._history.editor = editor;
+    this._history.editor = promptCell.editor;
     this._promptCellCreated.emit(promptCell);
   }
 
@@ -642,7 +660,7 @@ export class CodeConsole extends Widget {
       this.promptCell &&
       this.promptCell.node.contains(event.target as HTMLElement)
     ) {
-      this.promptCell.editor.focus();
+      this.promptCell.editor!.focus();
     }
   }
 
@@ -650,7 +668,7 @@ export class CodeConsole extends Widget {
    * Execute the code in the current prompt cell.
    */
   private _execute(cell: CodeCell): Promise<void> {
-    const source = cell.model.value.text;
+    const source = cell.model.sharedModel.getSource();
     this._history.push(source);
     // If the source of the console is just "clear", clear the console as we
     // do in IPython or QtConsole.
@@ -673,15 +691,15 @@ export class CodeConsole extends Widget {
           if (setNextInput) {
             const text = (setNextInput as any).text;
             // Ignore the `replace` value and always set the next cell.
-            cell.model.value.text = text;
+            cell.model.sharedModel.setSource(text);
           }
         }
       } else if (value && value.content.status === 'error') {
-        each(this._cells, (cell: CodeCell) => {
-          if (cell.model.executionCount === null) {
+        for (const cell of this._cells) {
+          if ((cell.model as ICodeCellModel).executionCount === null) {
             cell.setPrompt('');
           }
-        });
+        }
       }
       cell.model.contentChanged.disconnect(this.update, this);
       this.update();
@@ -705,10 +723,12 @@ export class CodeConsole extends Widget {
    */
   private _handleInfo(info: KernelMessage.IInfoReplyMsg['content']): void {
     if (info.status !== 'ok') {
-      this._banner!.model.value.text = 'Error in getting kernel banner';
+      this._banner!.model.sharedModel.setSource(
+        'Error in getting kernel banner'
+      );
       return;
     }
-    this._banner!.model.value.text = info.banner;
+    this._banner!.model.sharedModel.setSource(info.banner);
     const lang = info.language_info as nbformat.ILanguageInfoMetadata;
     this._mimetype = this._mimeTypeService.getMimeTypeByLanguage(lang);
     if (this.promptCell) {
@@ -725,12 +745,26 @@ export class CodeConsole extends Widget {
     const model = modelFactory.createCodeCell({});
     const rendermime = this.rendermime;
     const editorConfig = this.editorConfig;
+
+    // Suppress the default "Enter" key handling.
+    const onKeyDown = EditorView.domEventHandlers({
+      keydown: (event: KeyboardEvent, view: EditorView) => {
+        if (event.keyCode === 13) {
+          event.preventDefault();
+          return true;
+        }
+        return false;
+      }
+    });
+
     return {
       model,
       rendermime,
       contentFactory,
       editorConfig,
-      placeholder: false
+      editorExtensions: [Prec.high(onKeyDown)],
+      placeholder: false,
+      translator: this._translator
     };
   }
 
@@ -757,7 +791,7 @@ export class CodeConsole extends Widget {
       return Promise.resolve(false);
     }
     const model = promptCell.model;
-    const code = model.value.text;
+    const code = model.sharedModel.getSource();
     return new Promise<boolean>((resolve, reject) => {
       const timer = setTimeout(() => {
         resolve(true);
@@ -786,14 +820,6 @@ export class CodeConsole extends Widget {
     });
   }
 
-  /**
-   * Handle a keydown event on an editor.
-   */
-  private _onEditorKeydown(editor: CodeEditor.IEditor, event: KeyboardEvent) {
-    // Suppress "Enter" events.
-    return event.keyCode === 13;
-  }
-
   /**
    * Handle a change to the kernel.
    */
@@ -838,6 +864,7 @@ export class CodeConsole extends Widget {
   } | null = null;
   private _drag: Drag | null = null;
   private _focusedCell: Cell | null = null;
+  private _translator: ITranslator;
 }
 
 /**
@@ -872,8 +899,21 @@ export namespace CodeConsole {
      * The service used to look up mime types.
      */
     mimeTypeService: IEditorMimeTypeService;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator;
   }
 
+  /**
+   * Default console editor configuration
+   */
+  export const defaultEditorConfig: Record<string, any> = {
+    codeFolding: false,
+    lineNumbers: false
+  };
+
   /**
    * A content factory for console children.
    */
@@ -894,7 +934,8 @@ export namespace CodeConsole {
    */
   export class ContentFactory
     extends Cell.ContentFactory
-    implements IContentFactory {
+    implements IContentFactory
+  {
     /**
      * Create a new code cell widget.
      *
@@ -903,9 +944,6 @@ export namespace CodeConsole {
      * notebook content factory is used.
      */
     createCodeCell(options: CodeCell.IOptions): CodeCell {
-      if (!options.contentFactory) {
-        options.contentFactory = this;
-      }
       return new CodeCell(options).initializeState();
     }
 
@@ -917,9 +955,6 @@ export namespace CodeConsole {
      * notebook content factory is used.
      */
     createRawCell(options: RawCell.IOptions): RawCell {
-      if (!options.contentFactory) {
-        options.contentFactory = this;
-      }
       return new RawCell(options).initializeState();
     }
   }
@@ -934,11 +969,6 @@ export namespace CodeConsole {
     export interface IOptions extends Cell.IContentFactory {}
   }
 
-  /**
-   * A default content factory for the code console.
-   */
-  export const defaultContentFactory: IContentFactory = new ContentFactory();
-
   /**
    * A model factory for a console widget.
    */
@@ -966,7 +996,9 @@ export namespace CodeConsole {
      * @returns A new raw cell. If a source cell is provided, the
      *   new cell will be initialized with the data from the source.
      */
-    createRawCell(options: CellModel.IOptions): IRawCellModel;
+    createRawCell(
+      options: AttachmentsCellModel.IOptions<ISharedRawCell>
+    ): IRawCellModel;
   }
 
   /**
@@ -988,15 +1020,13 @@ export namespace CodeConsole {
 
     /**
      * Create a new code cell.
-     *
-     * @param source - The data to use for the original source data.
-     *
+     * @param options - The data to use for the original source data.
      * @returns A new code cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     *   If the contentFactory is not provided, the instance
-     *   `codeCellContentFactory` will be used.
+    new cell will be initialized with the data from the source.
+    If the contentFactory is not provided, the instance
+    `codeCellContentFactory` will be used.
      */
-    createCodeCell(options: CodeCellModel.IOptions): ICodeCellModel {
+    createCodeCell(options: CodeCellModel.IOptions = {}): ICodeCellModel {
       if (!options.contentFactory) {
         options.contentFactory = this.codeCellContentFactory;
       }
@@ -1005,13 +1035,13 @@ export namespace CodeConsole {
 
     /**
      * Create a new raw cell.
-     *
-     * @param source - The data to use for the original source data.
-     *
+     * @param options - The data to use for the original source data.
      * @returns A new raw cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
+    new cell will be initialized with the data from the source.
      */
-    createRawCell(options: CellModel.IOptions): IRawCellModel {
+    createRawCell(
+      options: AttachmentsCellModel.IOptions<ISharedRawCell>
+    ): IRawCellModel {
       return new RawCellModel(options);
     }
   }
diff --git a/packages/console/style/base.css b/packages/console/style/base.css
index 95fd8f6971c5..76755572fc41 100644
--- a/packages/console/style/base.css
+++ b/packages/console/style/base.css
@@ -46,8 +46,9 @@
 }
 
 /* This rule is for styling cell run by another activity in this console */
-.jp-CodeConsole-content .jp-Cell.jp-CodeConsole-foreignCell {
-}
+
+/* .jp-CodeConsole-content .jp-Cell.jp-CodeConsole-foreignCell {
+} */
 
 .jp-CodeConsole-content .jp-InputArea-editor.jp-InputArea-editor {
   background: transparent;
@@ -75,9 +76,10 @@
   overflow: auto;
   border-top: var(--jp-border-width) solid var(--jp-toolbar-border-color);
   padding: var(--jp-cell-padding) var(--jp-console-padding);
+
   /* This matches the box shadow on the notebook toolbar, eventually we should create
    * CSS variables for this */
-  box-shadow: 0px 0.4px 6px 0px rgba(0, 0, 0, 0.1);
+  box-shadow: 0 0.4px 6px 0 rgba(0, 0, 0, 0.1);
   background: var(--jp-layout-color1);
 }
 
diff --git a/packages/console/style/index.css b/packages/console/style/index.css
index 654182fccab5..fde0f759bb41 100644
--- a/packages/console/style/index.css
+++ b/packages/console/style/index.css
@@ -7,9 +7,8 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@lumino/dragdrop/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/cells/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/console/style/index.js b/packages/console/style/index.js
index 3e2ce324964d..8901aff38800 100644
--- a/packages/console/style/index.js
+++ b/packages/console/style/index.js
@@ -7,9 +7,9 @@
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/rendermime/style/index.js';
 import '@lumino/dragdrop/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/cells/style/index.js';
 
 import './base.css';
diff --git a/packages/console/test/foreign.spec.ts b/packages/console/test/foreign.spec.ts
index 6b22e4f57faf..9b7c52c86ff9 100644
--- a/packages/console/test/foreign.spec.ts
+++ b/packages/console/test/foreign.spec.ts
@@ -3,13 +3,19 @@
 
 import { ISessionContext } from '@jupyterlab/apputils';
 import { CodeCell, CodeCellModel } from '@jupyterlab/cells';
+import { NBTestUtils } from '@jupyterlab/cells/lib/testutils';
+import { ForeignHandler } from '@jupyterlab/console';
+import { defaultRenderMime } from '@jupyterlab/rendermime/lib/testutils';
+import * as Mock from '@jupyterlab/docregistry/lib/testutils';
+import {
+  cloneKernel,
+  KernelMock,
+  SessionConnectionMock
+} from '@jupyterlab/services/lib/testutils';
 import { KernelMessage } from '@jupyterlab/services';
-import { defaultRenderMime, NBTestUtils } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
 import { UUID } from '@lumino/coreutils';
 import { Signal } from '@lumino/signaling';
 import { Panel } from '@lumino/widgets';
-import { ForeignHandler } from '../src';
 
 class TestParent extends Panel implements ForeignHandler.IReceiver {
   addCell(cell: CodeCell, msgId?: string): void {
@@ -21,7 +27,7 @@ class TestParent extends Panel implements ForeignHandler.IReceiver {
 
   createCodeCell(): CodeCell {
     const contentFactory = NBTestUtils.createCodeCellFactory();
-    const model = new CodeCellModel({});
+    const model = new CodeCellModel();
     const cell = new CodeCell({
       model,
       rendermime,
@@ -108,14 +114,14 @@ describe('@jupyterlab/console', () => {
 
     beforeAll(async function () {
       const path = UUID.uuid4();
-      const kernel0 = new Mock.KernelMock({});
-      const kernel1 = Mock.cloneKernel(kernel0);
-      const connection0 = new Mock.SessionConnectionMock(
+      const kernel0 = new KernelMock({});
+      const kernel1 = cloneKernel(kernel0);
+      const connection0 = new SessionConnectionMock(
         { model: { path, type: 'test' } },
         kernel0
       );
       sessionContext = new Mock.SessionContextMock({}, connection0);
-      const connection1 = new Mock.SessionConnectionMock(
+      const connection1 = new SessionConnectionMock(
         { model: { path, type: 'test2' } },
         kernel1
       );
diff --git a/packages/console/test/history.spec.ts b/packages/console/test/history.spec.ts
index 2fc89858eb2e..211488e2e388 100644
--- a/packages/console/test/history.spec.ts
+++ b/packages/console/test/history.spec.ts
@@ -2,13 +2,15 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ISessionContext } from '@jupyterlab/apputils';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import { CodeMirrorEditor, ybinding } from '@jupyterlab/codemirror';
+import { ConsoleHistory } from '@jupyterlab/console';
 import { KernelMessage } from '@jupyterlab/services';
-import { createSessionContext, signalToPromise } from '@jupyterlab/testutils';
-import { ConsoleHistory } from '../src';
+import { createStandaloneCell } from '@jupyter/ydoc';
+import { signalToPromise } from '@jupyterlab/testing';
 
-const mockHistory = ({
+const mockHistory = {
   header: null,
   parent_header: {
     date: '',
@@ -30,7 +32,7 @@ const mockHistory = ({
       [0, 0, 'qux']
     ]
   }
-} as unknown) as KernelMessage.IHistoryReplyMsg;
+} as unknown as KernelMessage.IHistoryReplyMsg;
 
 class TestHistory extends ConsoleHistory {
   methods: string[] = [];
@@ -161,11 +163,17 @@ describe('console/history', () => {
         expect(history.methods).toEqual(
           expect.not.arrayContaining(['onTextChange'])
         );
-        const model = new CodeEditor.Model();
+        const model = new CodeEditor.Model({
+          sharedModel: createStandaloneCell({ cell_type: 'code' })
+        });
         const host = document.createElement('div');
-        const editor = new CodeMirrorEditor({ model, host });
+        const editor = new CodeMirrorEditor({
+          model,
+          host,
+          extensions: [ybinding({ ytext: (model.sharedModel as any).ysource })]
+        });
         history.editor = editor;
-        model.value.text = 'foo';
+        model.sharedModel.setSource('foo');
         expect(history.methods).toEqual(
           expect.arrayContaining(['onTextChange'])
         );
@@ -179,17 +187,23 @@ describe('console/history', () => {
           expect.not.arrayContaining(['onEdgeRequest'])
         );
         const host = document.createElement('div');
-        const model = new CodeEditor.Model();
-        const editor = new CodeMirrorEditor({ model, host });
+        const model = new CodeEditor.Model({
+          sharedModel: createStandaloneCell({ cell_type: 'code' })
+        });
+        const editor = new CodeMirrorEditor({
+          model,
+          host,
+          extensions: [ybinding({ ytext: (model.sharedModel as any).ysource })]
+        });
         history.editor = editor;
         history.push('foo');
-        const promise = signalToPromise(editor.model.value.changed);
+        const promise = signalToPromise(editor.model.sharedModel.changed);
         editor.edgeRequested.emit('top');
         expect(history.methods).toEqual(
           expect.arrayContaining(['onEdgeRequest'])
         );
         await promise;
-        expect(editor.model.value.text).toBe('foo');
+        expect(editor.model.sharedModel.getSource()).toBe('foo');
       });
     });
   });
diff --git a/packages/console/test/panel.spec.ts b/packages/console/test/panel.spec.ts
index ab564851e391..f8c3a2360cbb 100644
--- a/packages/console/test/panel.spec.ts
+++ b/packages/console/test/panel.spec.ts
@@ -1,17 +1,20 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { dismissDialog } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { createSimpleSessionContext } from '@jupyterlab/docregistry/lib/testutils';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { CodeConsole, ConsolePanel } from '@jupyterlab/console';
+import { dismissDialog } from '@jupyterlab/testing';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
-import { CodeConsole, ConsolePanel } from '../src';
 import {
   createConsolePanelFactory,
   editorFactory,
   mimeTypeService,
   rendermime
 } from './utils';
+import { Drive } from '@jupyterlab/services';
+import { UUID } from '@lumino/coreutils';
 
 class TestPanel extends ConsolePanel {
   methods: string[] = [];
@@ -30,28 +33,28 @@ class TestPanel extends ConsolePanel {
 const contentFactory = createConsolePanelFactory();
 
 describe('console/panel', () => {
-  let panel: TestPanel;
-  const manager = new Mock.ServiceManagerMock();
+  describe('ConsolePanel', () => {
+    let panel: TestPanel;
+    const manager = new ServiceManagerMock();
 
-  beforeAll(async () => {
-    return await manager.ready;
-  });
+    beforeAll(async () => {
+      return await manager.ready;
+    });
 
-  beforeEach(() => {
-    panel = new TestPanel({
-      manager,
-      contentFactory,
-      rendermime,
-      mimeTypeService,
-      sessionContext: Mock.createSimpleSessionContext()
+    beforeEach(() => {
+      panel = new TestPanel({
+        manager,
+        contentFactory,
+        rendermime,
+        mimeTypeService,
+        sessionContext: createSimpleSessionContext()
+      });
     });
-  });
 
-  afterEach(() => {
-    panel.dispose();
-  });
+    afterEach(() => {
+      panel.dispose();
+    });
 
-  describe('ConsolePanel', () => {
     describe('#constructor()', () => {
       it('should create a new console panel', () => {
         expect(panel).toBeInstanceOf(ConsolePanel);
@@ -59,6 +62,21 @@ describe('console/panel', () => {
           expect.arrayContaining(['jp-ConsolePanel'])
         );
       });
+
+      it('should set the session context path to local path', () => {
+        manager.contents.addDrive(new Drive({ name: 'TestDrive' }));
+        const localPath = `${UUID.uuid4()}.txt`;
+        const panel = new TestPanel({
+          manager,
+          contentFactory,
+          rendermime,
+          mimeTypeService,
+          path: `TestDrive:${localPath}`
+        });
+
+        expect(panel.sessionContext.path).toEqual(localPath);
+        panel.dispose();
+      });
     });
 
     describe('#console', () => {
@@ -86,7 +104,9 @@ describe('console/panel', () => {
       it('should start the session', async () => {
         Widget.attach(panel, document.body);
         await panel.sessionContext.ready;
-        await panel.sessionContext.session!.kernel!.info;
+        await expect(
+          panel.sessionContext.session!.kernel!.info
+        ).resolves.not.toThrow();
       });
     });
 
@@ -94,7 +114,7 @@ describe('console/panel', () => {
       it('should give the focus to the console prompt', () => {
         Widget.attach(panel, document.body);
         MessageLoop.sendMessage(panel, Widget.Msg.ActivateRequest);
-        expect(panel.console.promptCell!.editor.hasFocus()).toBe(true);
+        expect(panel.console.promptCell!.editor!.hasFocus()).toBe(true);
         return dismissDialog();
       });
     });
diff --git a/packages/console/test/utils.ts b/packages/console/test/utils.ts
index 176d270a6667..cbaf36e9731d 100644
--- a/packages/console/test/utils.ts
+++ b/packages/console/test/utils.ts
@@ -1,15 +1,38 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { editorServices } from '@jupyterlab/codemirror';
-import { defaultRenderMime } from '@jupyterlab/testutils';
-import { CodeConsole, ConsolePanel } from '../src';
+import { IYText } from '@jupyter/ydoc';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
+import { CodeConsole, ConsolePanel } from '@jupyterlab/console';
+import { defaultRenderMime } from '@jupyterlab/rendermime/lib/testutils';
 
-export const editorFactory = editorServices.factoryService.newInlineEditor.bind(
-  editorServices.factoryService
-);
+const languages = new EditorLanguageRegistry();
+const extensions = (() => {
+  const registry = new EditorExtensionRegistry();
+  registry.addExtension({
+    name: 'binding',
+    factory: ({ model }) => {
+      const sharedModel = model.sharedModel as IYText;
+      return EditorExtensionRegistry.createImmutableExtension([
+        ybinding({ ytext: sharedModel.ysource })
+      ]);
+    }
+  });
 
-export const mimeTypeService = editorServices.mimeTypeService;
+  return registry;
+})();
+const factoryService = new CodeMirrorEditorFactory({ extensions, languages });
+
+export const editorFactory =
+  factoryService.newInlineEditor.bind(factoryService);
+
+export const mimeTypeService = new CodeMirrorMimeTypeService(languages);
 
 export const rendermime = defaultRenderMime();
 
diff --git a/packages/console/test/widget.spec.ts b/packages/console/test/widget.spec.ts
index ee6385e3ceae..9d84b82d4e41 100644
--- a/packages/console/test/widget.spec.ts
+++ b/packages/console/test/widget.spec.ts
@@ -2,16 +2,18 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { SessionContext } from '@jupyterlab/apputils';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import {
   CodeCell,
   CodeCellModel,
   RawCell,
   RawCellModel
 } from '@jupyterlab/cells';
-import { createSessionContext, NBTestUtils } from '@jupyterlab/testutils';
+import { createStandaloneCell, YCodeCell } from '@jupyter/ydoc';
+import { NBTestUtils } from '@jupyterlab/cells/lib/testutils';
+import { CodeConsole } from '@jupyterlab/console';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
-import { CodeConsole } from '../src';
 import {
   createConsoleFactory,
   editorFactory,
@@ -142,7 +144,7 @@ describe('console/widget', () => {
     describe('#addCell()', () => {
       it('should add a code cell to the content widget', () => {
         const contentFactory = NBTestUtils.createCodeCellFactory();
-        const model = new CodeCellModel({});
+        const model = new CodeCellModel();
         const cell = new CodeCell({
           model,
           contentFactory,
@@ -164,7 +166,7 @@ describe('console/widget', () => {
         expect(widget.cells.length).toBeGreaterThan(0);
         widget.clear();
         expect(widget.cells.length).toBe(0);
-        expect(widget.promptCell!.model.value.text).toBe('');
+        expect(widget.promptCell!.model.sharedModel.getSource()).toBe('');
       });
     });
 
@@ -199,7 +201,7 @@ describe('console/widget', () => {
         const force = false;
         const timeout = 9000;
         Widget.attach(widget, document.body);
-        widget.promptCell!.model.value.text = 'for x in range(5):';
+        widget.promptCell!.model.sharedModel.setSource('for x in range(5):');
         expect(widget.cells.length).toBe(0);
         const session = widget.sessionContext as SessionContext;
         session.kernelPreference = { name: 'ipython' };
@@ -224,16 +226,16 @@ describe('console/widget', () => {
         Widget.attach(widget, document.body);
 
         const model = widget.promptCell!.model;
-        expect(model.value.text).toHaveLength(0);
+        expect(model.sharedModel.getSource()).toHaveLength(0);
         widget.insertLinebreak();
-        expect(model.value.text).toBe('\n');
+        expect(model.sharedModel.getSource()).toBe('\n');
       });
     });
 
     describe('#serialize()', () => {
       it('should serialize the contents of a console', () => {
         Widget.attach(widget, document.body);
-        widget.promptCell!.model.value.text = 'foo';
+        widget.promptCell!.model.sharedModel.setSource('foo');
 
         const serialized = widget.serialize();
         expect(serialized).toHaveLength(1);
@@ -291,7 +293,7 @@ describe('console/widget', () => {
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onActivateRequest'])
         );
-        expect(widget.promptCell!.editor.hasFocus()).toBe(true);
+        expect(widget.promptCell!.editor!.hasFocus()).toBe(true);
       });
     });
 
@@ -319,7 +321,7 @@ describe('console/widget', () => {
 
       describe('#createCodeCell', () => {
         it('should create a code cell', () => {
-          const model = new CodeCellModel({});
+          const model = new CodeCellModel();
           const prompt = contentFactory.createCodeCell({
             rendermime: widget.rendermime,
             model,
@@ -331,7 +333,7 @@ describe('console/widget', () => {
 
       describe('#createRawCell', () => {
         it('should create a foreign cell', () => {
-          const model = new RawCellModel({});
+          const model = new RawCellModel();
           const prompt = contentFactory.createRawCell({
             model,
             contentFactory
@@ -369,7 +371,13 @@ describe('console/widget', () => {
       describe('#createCodeCell()', () => {
         it('should create a code cell', () => {
           const factory = new CodeConsole.ModelFactory({});
-          expect(factory.createCodeCell({})).toBeInstanceOf(CodeCellModel);
+          expect(
+            factory.createCodeCell({
+              sharedModel: createStandaloneCell({
+                cell_type: 'code'
+              }) as YCodeCell
+            })
+          ).toBeInstanceOf(CodeCellModel);
         });
       });
 
diff --git a/packages/console/tsconfig.test.json b/packages/console/tsconfig.test.json
index 2b79eb210882..65002a653353 100644
--- a/packages/console/tsconfig.test.json
+++ b/packages/console/tsconfig.test.json
@@ -36,37 +36,10 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
+      "path": "../codemirror"
     },
     {
-      "path": "../apputils"
-    },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/coreutils/.vscode/launch.json b/packages/coreutils/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/coreutils/.vscode/launch.json
+++ b/packages/coreutils/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/coreutils/babel.config.js b/packages/coreutils/babel.config.js
index 8b5c76420c60..caf3177160d5 100644
--- a/packages/coreutils/babel.config.js
+++ b/packages/coreutils/babel.config.js
@@ -1 +1,17 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        targets: {
+          node: 'current'
+        }
+      }
+    ]
+  ]
+};
diff --git a/packages/coreutils/jest.config.js b/packages/coreutils/jest.config.js
index 178440a1c5f3..2ff43b542d1b 100644
--- a/packages/coreutils/jest.config.js
+++ b/packages/coreutils/jest.config.js
@@ -1,2 +1,36 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
-module.exports = func(__dirname);
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const path = require('path');
+
+module.exports = {
+  testEnvironment: 'jsdom',
+  testTimeout: 10000,
+  testPathIgnorePatterns: ['/lib/', '/node_modules/'],
+  transform: {
+    // Extracted from https://github.com/kulshekhar/ts-jest/blob/v29.0.3/presets/index.js
+    '^.+\\.tsx?$': [
+      'ts-jest/legacy',
+      {
+        tsconfig: `./tsconfig.test.json`
+      }
+    ],
+    '^.+\\.jsx?$': 'babel-jest'
+  },
+  moduleFileExtensions: [
+    'ts',
+    'tsx',
+    'js',
+    'jsx',
+    'json',
+    'node',
+    'mjs',
+    'cjs'
+  ],
+  reporters: ['default', 'jest-junit', 'github-actions'],
+  coverageReporters: ['json', 'lcov', 'text', 'html'],
+  coverageDirectory: path.join(__dirname, 'coverage'),
+  testRegex: '/test/.*.spec.ts[x]?$'
+};
diff --git a/packages/coreutils/package.json b/packages/coreutils/package.json
index 946408db8e7c..48efe118cf3e 100644
--- a/packages/coreutils/package.json
+++ b/packages/coreutils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/coreutils",
-  "version": "5.6.6",
+  "version": "6.0.8",
   "description": "JupyterLab - Core Utilities",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -25,7 +25,8 @@
     "lib/*.d.ts",
     "lib/*.js.map",
     "lib/*.js",
-    "lib/*.json"
+    "lib/*.json",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -34,29 +35,31 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
     "minimist": "~1.2.0",
-    "moment": "^2.24.0",
     "path-browserify": "^1.0.0",
-    "url-parse": "~1.5.1"
+    "url-parse": "~1.5.4"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
+    "@babel/core": "^7.10.2",
+    "@babel/preset-env": "^7.10.2",
+    "@types/jest": "^29.2.0",
     "@types/minimist": "^1.2.0",
     "@types/url-parse": "^1.4.3",
-    "jest": "^26.4.2",
+    "jest": "^29.2.0",
+    "jest-environment-jsdom": "^29.3.0",
+    "jest-junit": "^15.0.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "ts-jest": "^29.1.0",
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/coreutils/src/index.ts b/packages/coreutils/src/index.ts
index e5935a16930e..b879b742aeb1 100644
--- a/packages/coreutils/src/index.ts
+++ b/packages/coreutils/src/index.ts
@@ -10,6 +10,7 @@ export * from './interfaces';
 export * from './markdowncodeblocks';
 export * from './pageconfig';
 export * from './path';
+export * from './signal';
 export * from './text';
 export * from './time';
 export * from './url';
diff --git a/packages/coreutils/src/path.ts b/packages/coreutils/src/path.ts
index c0d7cf105fb2..5dfb9da7fa41 100644
--- a/packages/coreutils/src/path.ts
+++ b/packages/coreutils/src/path.ts
@@ -82,18 +82,18 @@ export namespace PathExt {
    * @param parts - The paths to join.
    *
    * #### Notes
-   * The right-most parameter is considered {to}.  Other parameters are considered an array of {from}.
+   * The right-most parameter is considered \{to\}.  Other parameters are considered an array of \{from\}.
    *
-   * Starting from leftmost {from} parameter, resolves {to} to an absolute path.
+   * Starting from leftmost \{from\} parameter, resolves \{to\} to an absolute path.
    *
-   * If {to} isn't already absolute, {from} arguments are prepended in right to left order, until an absolute path is found. If after using all {from} paths still no absolute path is found, the current working directory is used as well. The resulting path is normalized, and trailing slashes are removed unless the path gets resolved to the root directory.
+   * If \{to\} isn't already absolute, \{from\} arguments are prepended in right to left order, until an absolute path is found. If after using all \{from\} paths still no absolute path is found, the current working directory is used as well. The resulting path is normalized, and trailing slashes are removed unless the path gets resolved to the root directory.
    */
   export function resolve(...parts: string[]): string {
     return removeSlash(posix.resolve(...parts));
   }
 
   /**
-   * Solve the relative path from {from} to {to}.
+   * Solve the relative path from \{from\} to \{to\}.
    *
    * @param from - The source path.
    *
diff --git a/packages/coreutils/src/signal.ts b/packages/coreutils/src/signal.ts
new file mode 100644
index 000000000000..db9335c33f4e
--- /dev/null
+++ b/packages/coreutils/src/signal.ts
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { PromiseDelegate } from '@lumino/coreutils';
+import { ISignal } from '@lumino/signaling';
+
+/**
+ * Convert a signal into a promise for the first emitted value.
+ *
+ * @param signal - The signal we are listening to.
+ * @param timeout - Timeout to wait for signal in ms (not timeout if not defined or 0)
+ *
+ * @returns a Promise that resolves with a `(sender, args)` pair.
+ */
+export function signalToPromise<T, U>(
+  signal: ISignal<T, U>,
+  timeout?: number
+): Promise<[T, U]> {
+  const waitForSignal = new PromiseDelegate<[T, U]>();
+
+  function cleanup() {
+    signal.disconnect(slot);
+  }
+
+  function slot(sender: T, args: U) {
+    cleanup();
+    waitForSignal.resolve([sender, args]);
+  }
+  signal.connect(slot);
+
+  if ((timeout ?? 0) > 0) {
+    setTimeout(() => {
+      cleanup();
+      waitForSignal.reject(`Signal not emitted within ${timeout} ms.`);
+    }, timeout);
+  }
+  return waitForSignal.promise;
+}
diff --git a/packages/coreutils/src/testutils.ts b/packages/coreutils/src/testutils.ts
new file mode 100644
index 000000000000..2e4bec901ae9
--- /dev/null
+++ b/packages/coreutils/src/testutils.ts
@@ -0,0 +1,21 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+// Test helpers
+
+/**
+ * Return a promise that resolves in the given milliseconds with the given value.
+ */
+export function sleep(milliseconds?: number): Promise<void>;
+export function sleep<T>(milliseconds: number, value: T): Promise<T>;
+export function sleep<T>(
+  milliseconds: number = 0,
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+  value?: any
+): Promise<T> | Promise<void> {
+  return new Promise<T>((resolve, reject) => {
+    setTimeout(() => {
+      resolve(value);
+    }, milliseconds);
+  });
+}
diff --git a/packages/coreutils/src/time.ts b/packages/coreutils/src/time.ts
index 53a6f31747cf..acb1ae49a33a 100644
--- a/packages/coreutils/src/time.ts
+++ b/packages/coreutils/src/time.ts
@@ -1,7 +1,17 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import moment from 'moment';
+/**
+ * A list of time units with their associated value in milliseconds.
+ */
+const UNITS: { name: Intl.RelativeTimeFormatUnit; milliseconds: number }[] = [
+  { name: 'years', milliseconds: 365 * 24 * 60 * 60 * 1000 },
+  { name: 'months', milliseconds: 30 * 24 * 60 * 60 * 1000 },
+  { name: 'days', milliseconds: 24 * 60 * 60 * 1000 },
+  { name: 'hours', milliseconds: 60 * 60 * 1000 },
+  { name: 'minutes', milliseconds: 60 * 1000 },
+  { name: 'seconds', milliseconds: 1000 }
+];
 
 /**
  * The namespace for date functions.
@@ -15,26 +25,32 @@ export namespace Time {
    * @returns A formatted date.
    */
   export function formatHuman(value: string | Date): string {
-    moment.locale(document.documentElement.lang);
-    let time = moment(value).fromNow();
-    // FIXME-TRANS: This is not localization friendly!
-    time = time === 'a few seconds ago' ? 'seconds ago' : time;
-    return time;
+    const lang = document.documentElement.lang || 'en';
+    const formatter = new Intl.RelativeTimeFormat(lang, { numeric: 'auto' });
+    const delta = new Date(value).getTime() - Date.now();
+    for (let unit of UNITS) {
+      const amount = Math.ceil(delta / unit.milliseconds);
+      if (amount === 0) {
+        continue;
+      }
+      return formatter.format(amount, unit.name);
+    }
+    return formatter.format(0, 'seconds');
   }
 
   /**
-   * Convert a timestring to a date format.
+   * Convenient helper to convert a timestring to a date format.
    *
    * @param value - The date timestring or date object.
    *
-   * @param format - The format string.
-   *
    * @returns A formatted date.
    */
-  export function format(
-    value: string | Date,
-    timeFormat = 'YYYY-MM-DD HH:mm'
-  ): string {
-    return moment(value).format(timeFormat);
+  export function format(value: string | Date): string {
+    const lang = document.documentElement.lang || 'en';
+    const formatter = new Intl.DateTimeFormat(lang, {
+      dateStyle: 'short',
+      timeStyle: 'short'
+    });
+    return formatter.format(new Date(value));
   }
 }
diff --git a/packages/coreutils/src/url.ts b/packages/coreutils/src/url.ts
index 8b3378b137ff..037b815e1471 100644
--- a/packages/coreutils/src/url.ts
+++ b/packages/coreutils/src/url.ts
@@ -30,7 +30,7 @@ export namespace URLExt {
    *
    * @param url - The URL string to parse
    *
-   * @return a hostname string value
+   * @returns a hostname string value
    */
   export function getHostName(url: string): string {
     return urlparse(url).hostname;
@@ -53,10 +53,16 @@ export namespace URLExt {
    * @returns the joined url.
    */
   export function join(...parts: string[]): string {
-    const u = urlparse(parts[0], {});
-    const prefix = `${u.protocol}${u.slashes ? '//' : ''}${u.auth}${
-      u.auth ? '@' : ''
-    }${u.host}`;
+    let u = urlparse(parts[0], {});
+    // Schema-less URL can be only parsed as relative to a base URL
+    // see https://github.com/unshiftio/url-parse/issues/219#issuecomment-1002219326
+    const isSchemaLess = u.protocol === '' && u.slashes;
+    if (isSchemaLess) {
+      u = urlparse(parts[0], 'https:' + parts[0]);
+    }
+    const prefix = `${isSchemaLess ? '' : u.protocol}${u.slashes ? '//' : ''}${
+      u.auth
+    }${u.auth ? '@' : ''}${u.host}`;
     // If there was a prefix, then the first path must start at the root.
     const path = posix.join(
       `${!!prefix && u.pathname[0] !== '/' ? '/' : ''}${u.pathname}`,
@@ -112,23 +118,24 @@ export namespace URLExt {
   /**
    * Return a parsed object that represents the values in a query string.
    */
-  export function queryStringToObject(
-    value: string
-  ): {
+  export function queryStringToObject(value: string): {
     [key: string]: string | undefined;
   } {
     return value
       .replace(/^\?/, '')
       .split('&')
-      .reduce((acc, val) => {
-        const [key, value] = val.split('=');
-
-        if (key.length > 0) {
-          acc[key] = decodeURIComponent(value || '');
-        }
-
-        return acc;
-      }, {} as { [key: string]: string });
+      .reduce(
+        (acc, val) => {
+          const [key, value] = val.split('=');
+
+          if (key.length > 0) {
+            acc[key] = decodeURIComponent(value || '');
+          }
+
+          return acc;
+        },
+        {} as { [key: string]: string }
+      );
   }
 
   /**
diff --git a/packages/coreutils/test/activitymonitor.spec.ts b/packages/coreutils/test/activitymonitor.spec.ts
index 3074756729b1..1d8c234fd157 100644
--- a/packages/coreutils/test/activitymonitor.spec.ts
+++ b/packages/coreutils/test/activitymonitor.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ActivityMonitor } from '@jupyterlab/coreutils';
-import { sleep } from '@jupyterlab/testutils';
+import { sleep } from '@jupyterlab/coreutils/lib/testutils';
 import { Signal } from '@lumino/signaling';
 
 class TestObject {
diff --git a/packages/coreutils/test/markdowncodeblocks.spec.ts b/packages/coreutils/test/markdowncodeblocks.spec.ts
index 93b5ca588309..f6f35251245c 100644
--- a/packages/coreutils/test/markdowncodeblocks.spec.ts
+++ b/packages/coreutils/test/markdowncodeblocks.spec.ts
@@ -20,17 +20,15 @@ describe('@jupyterlab/coreutils', () => {
 
     describe('.findMarkdownCodeBlocks()', () => {
       it('should find a simple block', () => {
-        const codeblocks = MarkdownCodeBlocks.findMarkdownCodeBlocks(
-          MULTI_LINE_BLOCK
-        );
+        const codeblocks =
+          MarkdownCodeBlocks.findMarkdownCodeBlocks(MULTI_LINE_BLOCK);
         expect(codeblocks.length).toBe(1);
         expect(codeblocks[0].code).toBe('a = 10\nb = 20\n');
       });
 
       it('should find a single line block', () => {
-        const codeblocks = MarkdownCodeBlocks.findMarkdownCodeBlocks(
-          SINGLE_LINE_BLOCK
-        );
+        const codeblocks =
+          MarkdownCodeBlocks.findMarkdownCodeBlocks(SINGLE_LINE_BLOCK);
         expect(codeblocks.length).toBe(1);
         expect(codeblocks[0].code).toBe('a = 10');
       });
diff --git a/packages/coreutils/test/time.spec.ts b/packages/coreutils/test/time.spec.ts
index e8194d1c3aaf..e985afbe76b3 100644
--- a/packages/coreutils/test/time.spec.ts
+++ b/packages/coreutils/test/time.spec.ts
@@ -10,19 +10,10 @@ describe('@jupyterlab/coreutils', () => {
         const date = new Date();
         date.setSeconds(date.getSeconds() - 10);
         const value = Time.formatHuman(date);
-        expect(value).toBe('seconds ago');
+        expect(value).toContain('seconds ago');
         date.setMinutes(date.getMinutes() - 3);
         expect(Time.formatHuman(date.toISOString())).toBe('3 minutes ago');
       });
     });
-
-    describe('.format()', () => {
-      it('should convert a timestring to a date format', () => {
-        expect(Time.format(new Date()).length).toBe(16);
-        const date = new Date();
-        const value = Time.format(date.toISOString(), 'MM-DD');
-        expect(value.length).toBe(5);
-      });
-    });
   });
 });
diff --git a/packages/coreutils/tsconfig.test.json b/packages/coreutils/tsconfig.test.json
index 717c38a1f87b..a426deae8832 100644
--- a/packages/coreutils/tsconfig.test.json
+++ b/packages/coreutils/tsconfig.test.json
@@ -4,9 +4,6 @@
   "references": [
     {
       "path": "."
-    },
-    {
-      "path": "../../testutils"
     }
   ]
 }
diff --git a/packages/csvviewer-extension/package.json b/packages/csvviewer-extension/package.json
index 88560dae6b56..5b908514612a 100644
--- a/packages/csvviewer-extension/package.json
+++ b/packages/csvviewer-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/csvviewer-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - CSV Widget Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,23 +38,22 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/csvviewer": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/documentsearch": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/datagrid": "^0.36.7",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/csvviewer": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/datagrid": "^2.2.0",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/csvviewer-extension/schema/csv.json b/packages/csvviewer-extension/schema/csv.json
index 3a6e2ba176f4..a6e32f095a40 100644
--- a/packages/csvviewer-extension/schema/csv.json
+++ b/packages/csvviewer-extension/schema/csv.json
@@ -51,6 +51,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/csvviewer-extension/schema/tsv.json b/packages/csvviewer-extension/schema/tsv.json
index b0703ade39ba..0df9260a1ef9 100644
--- a/packages/csvviewer-extension/schema/tsv.json
+++ b/packages/csvviewer-extension/schema/tsv.json
@@ -51,6 +51,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/csvviewer-extension/src/index.ts b/packages/csvviewer-extension/src/index.ts
index 37d15aa133a4..cf01313ef355 100644
--- a/packages/csvviewer-extension/src/index.ts
+++ b/packages/csvviewer-extension/src/index.ts
@@ -18,20 +18,19 @@ import {
   WidgetTracker
 } from '@jupyterlab/apputils';
 import {
-  CSVDelimiter,
-  CSVViewer,
   CSVViewerFactory,
-  TextRenderConfig,
   TSVViewerFactory
-} from '@jupyterlab/csvviewer';
+} from '@jupyterlab/csvviewer/lib/widget';
+import { CSVDelimiter } from '@jupyterlab/csvviewer/lib/toolbar';
+import type { CSVViewer } from '@jupyterlab/csvviewer';
+import type { TextRenderConfig } from '@jupyterlab/csvviewer';
 import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
 import { ISearchProviderRegistry } from '@jupyterlab/documentsearch';
-import { IEditMenu, IMainMenu } from '@jupyterlab/mainmenu';
+import { IMainMenu } from '@jupyterlab/mainmenu';
 import { IObservableList } from '@jupyterlab/observables';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
-import { DataGrid } from '@lumino/datagrid';
-import { CSVSearchProvider } from './searchprovider';
+import type { DataGrid } from '@lumino/datagrid';
 
 /**
  * The name of the factories that creates widgets.
@@ -39,12 +38,22 @@ import { CSVSearchProvider } from './searchprovider';
 const FACTORY_CSV = 'CSVTable';
 const FACTORY_TSV = 'TSVTable';
 
+/**
+ * The command IDs used by the csvviewer plugins.
+ */
+namespace CommandIDs {
+  export const CSVGoToLine = 'csv:go-to-line';
+
+  export const TSVGoToLine = 'tsv:go-to-line';
+}
+
 /**
  * The CSV file handler extension.
  */
 const csv: JupyterFrontEndPlugin<void> = {
   activate: activateCsv,
   id: '@jupyterlab/csvviewer-extension:csv',
+  description: 'Adds viewer for CSV file types',
   requires: [ITranslator],
   optional: [
     ILayoutRestorer,
@@ -63,6 +72,7 @@ const csv: JupyterFrontEndPlugin<void> = {
 const tsv: JupyterFrontEndPlugin<void> = {
   activate: activateTsv,
   id: '@jupyterlab/csvviewer-extension:tsv',
+  description: 'Adds viewer for TSV file types.',
   requires: [ITranslator],
   optional: [
     ILayoutRestorer,
@@ -75,31 +85,6 @@ const tsv: JupyterFrontEndPlugin<void> = {
   autoStart: true
 };
 
-/**
- * Connect menu entries for find and go to line.
- */
-function addMenuEntries(
-  mainMenu: IMainMenu,
-  tracker: WidgetTracker<IDocumentWidget<CSVViewer>>,
-  translator: ITranslator
-) {
-  const trans = translator.load('jupyterlab');
-  // Add go to line capability to the edit menu.
-  mainMenu.editMenu.goToLiners.add({
-    tracker,
-    goToLine: (widget: IDocumentWidget<CSVViewer>) => {
-      return InputDialog.getNumber({
-        title: trans.__('Go to Line'),
-        value: 0
-      }).then(value => {
-        if (value.button.accept && value.value !== null) {
-          widget.content.goToLine(value.value);
-        }
-      });
-    }
-  } as IEditMenu.IGoToLiner<IDocumentWidget<CSVViewer>>);
-}
-
 /**
  * Activate cssviewer extension for CSV files
  */
@@ -109,10 +94,11 @@ function activateCsv(
   restorer: ILayoutRestorer | null,
   themeManager: IThemeManager | null,
   mainMenu: IMainMenu | null,
-  searchregistry: ISearchProviderRegistry | null,
+  searchRegistry: ISearchProviderRegistry | null,
   settingRegistry: ISettingRegistry | null,
   toolbarRegistry: IToolbarWidgetRegistry | null
 ): void {
+  const { commands, shell } = app;
   let toolbarFactory:
     | ((
         widget: IDocumentWidget<CSVViewer>
@@ -120,7 +106,7 @@ function activateCsv(
     | undefined;
 
   if (toolbarRegistry) {
-    toolbarRegistry.registerFactory<IDocumentWidget<CSVViewer>>(
+    toolbarRegistry.addFactory<IDocumentWidget<CSVViewer>>(
       FACTORY_CSV,
       'delimiter',
       widget =>
@@ -141,8 +127,11 @@ function activateCsv(
     }
   }
 
+  const trans = translator.load('jupyterlab');
+
   const factory = new CSVViewerFactory({
     name: FACTORY_CSV,
+    label: trans.__('CSV Viewer'),
     fileTypes: ['csv'],
     defaultFor: ['csv'],
     readOnly: true,
@@ -168,7 +157,10 @@ function activateCsv(
 
   app.docRegistry.addWidgetFactory(factory);
   const ft = app.docRegistry.getFileType('csv');
-  factory.widgetCreated.connect((sender, widget) => {
+
+  let searchProviderInitialized = false;
+
+  factory.widgetCreated.connect(async (sender, widget) => {
     // Track the widget.
     void tracker.add(widget);
     // Notify the widget tracker if restore data needs to update.
@@ -181,7 +173,16 @@ function activateCsv(
       widget.title.iconClass = ft.iconClass!;
       widget.title.iconLabel = ft.iconLabel!;
     }
-    // Set the theme for the new widget.
+
+    // Delay await to execute `widget.title` setters (above) synchronously
+    if (searchRegistry && !searchProviderInitialized) {
+      const { CSVSearchProvider } = await import('./searchprovider');
+      searchRegistry.add('csv', CSVSearchProvider);
+      searchProviderInitialized = true;
+    }
+
+    // Set the theme for the new widget; requires `.content` to be loaded.
+    await widget.content.ready;
     widget.content.style = style;
     widget.content.rendererConfig = rendererConfig;
   });
@@ -196,7 +197,8 @@ function activateCsv(
     rendererConfig = isLight
       ? Private.LIGHT_TEXT_CONFIG
       : Private.DARK_TEXT_CONFIG;
-    tracker.forEach(grid => {
+    tracker.forEach(async grid => {
+      await grid.content.ready;
       grid.content.style = style;
       grid.content.rendererConfig = rendererConfig;
     });
@@ -205,11 +207,35 @@ function activateCsv(
     themeManager.themeChanged.connect(updateThemes);
   }
 
+  // Add commands
+  const isEnabled = () =>
+    tracker.currentWidget !== null &&
+    tracker.currentWidget === shell.currentWidget;
+
+  commands.addCommand(CommandIDs.CSVGoToLine, {
+    label: trans.__('Go to Line'),
+    execute: async () => {
+      const widget = tracker.currentWidget;
+      if (widget === null) {
+        return;
+      }
+      const result = await InputDialog.getNumber({
+        title: trans.__('Go to Line'),
+        value: 0
+      });
+      if (result.button.accept && result.value !== null) {
+        widget.content.goToLine(result.value);
+      }
+    },
+    isEnabled
+  });
+
   if (mainMenu) {
-    addMenuEntries(mainMenu, tracker, translator);
-  }
-  if (searchregistry) {
-    searchregistry.register('csv', CSVSearchProvider);
+    // Add go to line capability to the edit menu.
+    mainMenu.editMenu.goToLiners.add({
+      id: CommandIDs.CSVGoToLine,
+      isEnabled
+    });
   }
 }
 
@@ -222,10 +248,11 @@ function activateTsv(
   restorer: ILayoutRestorer | null,
   themeManager: IThemeManager | null,
   mainMenu: IMainMenu | null,
-  searchregistry: ISearchProviderRegistry | null,
+  searchRegistry: ISearchProviderRegistry | null,
   settingRegistry: ISettingRegistry | null,
   toolbarRegistry: IToolbarWidgetRegistry | null
 ): void {
+  const { commands, shell } = app;
   let toolbarFactory:
     | ((
         widget: IDocumentWidget<CSVViewer>
@@ -233,7 +260,7 @@ function activateTsv(
     | undefined;
 
   if (toolbarRegistry) {
-    toolbarRegistry.registerFactory<IDocumentWidget<CSVViewer>>(
+    toolbarRegistry.addFactory<IDocumentWidget<CSVViewer>>(
       FACTORY_TSV,
       'delimiter',
       widget =>
@@ -254,8 +281,11 @@ function activateTsv(
     }
   }
 
+  const trans = translator.load('jupyterlab');
+
   const factory = new TSVViewerFactory({
     name: FACTORY_TSV,
+    label: trans.__('TSV Viewer'),
     fileTypes: ['tsv'],
     defaultFor: ['tsv'],
     readOnly: true,
@@ -281,7 +311,10 @@ function activateTsv(
 
   app.docRegistry.addWidgetFactory(factory);
   const ft = app.docRegistry.getFileType('tsv');
-  factory.widgetCreated.connect((sender, widget) => {
+
+  let searchProviderInitialized = false;
+
+  factory.widgetCreated.connect(async (sender, widget) => {
     // Track the widget.
     void tracker.add(widget);
     // Notify the widget tracker if restore data needs to update.
@@ -294,7 +327,16 @@ function activateTsv(
       widget.title.iconClass = ft.iconClass!;
       widget.title.iconLabel = ft.iconLabel!;
     }
-    // Set the theme for the new widget.
+
+    // Delay await to execute `widget.title` setters (above) synchronously
+    if (searchRegistry && !searchProviderInitialized) {
+      const { CSVSearchProvider } = await import('./searchprovider');
+      searchRegistry.add('tsv', CSVSearchProvider);
+      searchProviderInitialized = true;
+    }
+
+    // Set the theme for the new widget; requires `.content` to be loaded.
+    await widget.content.ready;
     widget.content.style = style;
     widget.content.rendererConfig = rendererConfig;
   });
@@ -309,7 +351,8 @@ function activateTsv(
     rendererConfig = isLight
       ? Private.LIGHT_TEXT_CONFIG
       : Private.DARK_TEXT_CONFIG;
-    tracker.forEach(grid => {
+    tracker.forEach(async grid => {
+      await grid.content.ready;
       grid.content.style = style;
       grid.content.rendererConfig = rendererConfig;
     });
@@ -318,11 +361,35 @@ function activateTsv(
     themeManager.themeChanged.connect(updateThemes);
   }
 
+  // Add commands
+  const isEnabled = () =>
+    tracker.currentWidget !== null &&
+    tracker.currentWidget === shell.currentWidget;
+
+  commands.addCommand(CommandIDs.TSVGoToLine, {
+    label: trans.__('Go to Line'),
+    execute: async () => {
+      const widget = tracker.currentWidget;
+      if (widget === null) {
+        return;
+      }
+      const result = await InputDialog.getNumber({
+        title: trans.__('Go to Line'),
+        value: 0
+      });
+      if (result.button.accept && result.value !== null) {
+        widget.content.goToLine(result.value);
+      }
+    },
+    isEnabled
+  });
+
   if (mainMenu) {
-    addMenuEntries(mainMenu, tracker, translator);
-  }
-  if (searchregistry) {
-    searchregistry.register('tsv', CSVSearchProvider);
+    // Add go to line capability to the edit menu.
+    mainMenu.editMenu.goToLiners.add({
+      id: CommandIDs.TSVGoToLine,
+      isEnabled
+    });
   }
 }
 
@@ -340,7 +407,6 @@ namespace Private {
    * The light theme for the data grid.
    */
   export const LIGHT_STYLE: DataGrid.Style = {
-    ...DataGrid.defaultStyle,
     voidColor: '#F3F3F3',
     backgroundColor: 'white',
     headerBackgroundColor: '#EEEEEE',
@@ -353,7 +419,6 @@ namespace Private {
    * The dark theme for the data grid.
    */
   export const DARK_STYLE: DataGrid.Style = {
-    ...DataGrid.defaultStyle,
     voidColor: 'black',
     backgroundColor: '#111111',
     headerBackgroundColor: '#424242',
diff --git a/packages/csvviewer-extension/src/searchprovider.ts b/packages/csvviewer-extension/src/searchprovider.ts
index ae18d5f86bd0..a96a892acef5 100644
--- a/packages/csvviewer-extension/src/searchprovider.ts
+++ b/packages/csvviewer-extension/src/searchprovider.ts
@@ -2,18 +2,40 @@
 // Distributed under the terms of the Modified BSD License.
 import { CSVViewer } from '@jupyterlab/csvviewer';
 import { DocumentWidget } from '@jupyterlab/docregistry';
-import { ISearchMatch, ISearchProvider } from '@jupyterlab/documentsearch';
-import { ISignal, Signal } from '@lumino/signaling';
+import { ISearchProvider, SearchProvider } from '@jupyterlab/documentsearch';
+import { ITranslator } from '@jupyterlab/translation';
 import { Widget } from '@lumino/widgets';
 
-// The type for which canSearchFor returns true
+// The type for which isApplicable returns true
 export type CSVDocumentWidget = DocumentWidget<CSVViewer>;
 
-export class CSVSearchProvider implements ISearchProvider<CSVDocumentWidget> {
+/**
+ * CSV viewer search provider
+ */
+export class CSVSearchProvider extends SearchProvider<CSVDocumentWidget> {
+  /**
+   * Instantiate a search provider for the widget.
+   *
+   * #### Notes
+   * The widget provided is always checked using `isApplicable` before calling
+   * this factory.
+   *
+   * @param widget The widget to search on
+   * @param translator [optional] The translator object
+   *
+   * @returns The search provider on the widget
+   */
+  static createNew(
+    widget: CSVDocumentWidget,
+    translator?: ITranslator
+  ): ISearchProvider {
+    return new CSVSearchProvider(widget);
+  }
+
   /**
    * Report whether or not this provider has the ability to search on the given object
    */
-  static canSearchOn(domain: Widget): domain is CSVDocumentWidget {
+  static isApplicable(domain: Widget): domain is CSVDocumentWidget {
     // check to see if the CSVSearchProvider can search on the
     // first cell, false indicates another editor is present
     return (
@@ -22,121 +44,91 @@ export class CSVSearchProvider implements ISearchProvider<CSVDocumentWidget> {
   }
 
   /**
-   * Get an initial query value if applicable so that it can be entered
-   * into the search box as an initial query
-   *
-   * @returns Initial value used to populate the search box.
-   */
-  getInitialQuery(searchTarget: CSVDocumentWidget): any {
-    // CSV Viewer does not support selection
-    return null;
-  }
-
-  /**
-   * Initialize the search using the provided options.  Should update the UI
-   * to highlight all matches and "select" whatever the first match should be.
-   *
-   * @param query A RegExp to be use to perform the search
-   * @param searchTarget The widget to be searched
-   *
-   * @returns A promise that resolves with a list of all matches
-   */
-  async startQuery(
-    query: RegExp,
-    searchTarget: CSVDocumentWidget
-  ): Promise<ISearchMatch[]> {
-    this._target = searchTarget;
-    this._query = query;
-    searchTarget.content.searchService.find(query);
-    return this.matches;
-  }
-
-  /**
-   * Clears state of a search provider to prepare for startQuery to be called
-   * in order to start a new query or refresh an existing one.
-   *
-   * @returns A promise that resolves when the search provider is ready to
-   * begin a new search.
+   * Set to true if the widget under search is read-only, false
+   * if it is editable.  Will be used to determine whether to show
+   * the replace option.
    */
-  async endQuery(): Promise<void> {
-    this._target.content.searchService.clear();
-  }
+  readonly isReadOnly = true;
 
   /**
-   * Resets UI state as it was before the search process began.  Cleans up and
-   * disposes of all internal state.
-   *
-   * @returns A promise that resolves when all state has been cleaned up.
+   * Clear currently highlighted match.
    */
-  async endSearch(): Promise<void> {
-    this._target.content.searchService.clear();
+  clearHighlight(): Promise<void> {
+    // no-op
+    return Promise.resolve();
   }
 
   /**
    * Move the current match indicator to the next match.
    *
-   * @returns A promise that resolves once the action has completed.
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The match is never returned by this provider
    */
-  async highlightNext(): Promise<ISearchMatch | undefined> {
-    this._target.content.searchService.find(this._query);
-    return undefined;
+  highlightNext(loop?: boolean): Promise<undefined> {
+    this.widget.content.searchService.find(this._query);
+    return Promise.resolve(undefined);
   }
 
   /**
    * Move the current match indicator to the previous match.
    *
-   * @returns A promise that resolves once the action has completed.
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The match is never returned by this provider
    */
-  async highlightPrevious(): Promise<ISearchMatch | undefined> {
-    this._target.content.searchService.find(this._query, true);
-    return undefined;
+  highlightPrevious(loop?: boolean): Promise<undefined> {
+    this.widget.content.searchService.find(this._query, true);
+    return Promise.resolve(undefined);
   }
 
   /**
    * Replace the currently selected match with the provided text
    * Not implemented in the CSV viewer as it is read-only.
    *
+   * @param newText The replacement text
+   * @param loop Whether to loop within the matches list.
+   *
    * @returns A promise that resolves once the action has completed.
    */
-  async replaceCurrentMatch(newText: string): Promise<boolean> {
-    return false;
+  replaceCurrentMatch(newText: string, loop?: boolean): Promise<boolean> {
+    return Promise.resolve(false);
   }
 
   /**
    * Replace all matches in the notebook with the provided text
    * Not implemented in the CSV viewer as it is read-only.
    *
+   * @param newText The replacement text
+   *
    * @returns A promise that resolves once the action has completed.
    */
-  async replaceAllMatches(newText: string): Promise<boolean> {
-    return false;
+  replaceAllMatches(newText: string): Promise<boolean> {
+    return Promise.resolve(false);
   }
 
   /**
-   * Signal indicating that something in the search has changed, so the UI should update
+   * Initialize the search using the provided options.  Should update the UI
+   * to highlight all matches and "select" whatever the first match should be.
+   *
+   * @param query A RegExp to be use to perform the search
    */
-  get changed(): ISignal<this, void> {
-    return this._changed;
-  }
+  startQuery(query: RegExp): Promise<void> {
+    this._query = query;
+    this.widget.content.searchService.find(query);
 
-  /**
-   * The same list of matches provided by the startQuery promise resolution
-   */
-  readonly matches: ISearchMatch[] = [];
+    return Promise.resolve();
+  }
 
   /**
-   * The current index of the selected match.
+   * Clears state of a search provider to prepare for startQuery to be called
+   * in order to start a new query or refresh an existing one.
    */
-  readonly currentMatchIndex: number | null = null;
+  endQuery(): Promise<void> {
+    this.widget.content.searchService.clear();
 
-  /**
-   * Set to true if the widget under search is read-only, false
-   * if it is editable.  Will be used to determine whether to show
-   * the replace option.
-   */
-  readonly isReadOnly = true;
+    return Promise.resolve();
+  }
 
-  private _target: CSVDocumentWidget;
   private _query: RegExp;
-  private _changed = new Signal<this, void>(this);
 }
diff --git a/packages/csvviewer/.vscode/launch.json b/packages/csvviewer/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/csvviewer/.vscode/launch.json
+++ b/packages/csvviewer/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/csvviewer/README.md b/packages/csvviewer/README.md
index 880b4d40071a..d6c8490e0571 100644
--- a/packages/csvviewer/README.md
+++ b/packages/csvviewer/README.md
@@ -1,4 +1,4 @@
 # @jupyterlab/csvviewer
 
 A JupyterLab package that provides a viewer for CSV files,
-based upon the [@phosphor/datagrid](https://github.com/phosphorjs/phosphor/tree/master/packages/datagrid) package.
+based upon the [@lumino/datagrid](https://github.com/jupyterlab/lumino/tree/main/packages/datagrid) package.
diff --git a/packages/csvviewer/babel.config.js b/packages/csvviewer/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/csvviewer/babel.config.js
+++ b/packages/csvviewer/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/csvviewer/jest.config.js b/packages/csvviewer/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/csvviewer/jest.config.js
+++ b/packages/csvviewer/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/csvviewer/package.json b/packages/csvviewer/package.json
index d5b4262edcf0..5399d1691b07 100644
--- a/packages/csvviewer/package.json
+++ b/packages/csvviewer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/csvviewer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - CSV Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,33 +37,31 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/datagrid": "^0.36.7",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/datagrid": "^2.2.0",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "canvas": "^2.6.1",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "canvas": "^2.11.2",
     "csv-spectrum": "^1.0.0",
-    "jest": "^26.4.2",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/csvviewer/src/toolbar.ts b/packages/csvviewer/src/toolbar.ts
index e5757a5676a7..02da1007484d 100644
--- a/packages/csvviewer/src/toolbar.ts
+++ b/packages/csvviewer/src/toolbar.ts
@@ -1,13 +1,11 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Styling } from '@jupyterlab/apputils';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { each } from '@lumino/algorithm';
+import { Styling } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
-import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
-import { CSVViewer } from './widget';
+import type { CSVViewer } from './widget';
 
 /**
  * The class name added to a csv toolbar widget.
@@ -36,16 +34,6 @@ export class CSVDelimiter extends Widget {
     this.addClass(CSV_DELIMITER_CLASS);
   }
 
-  /**
-   * A signal emitted when the delimiter selection has changed.
-   *
-   * @deprecated since v3.2
-   * This is dead code now.
-   */
-  get delimiterChanged(): ISignal<this, string> {
-    return this._delimiterChanged;
-  }
-
   /**
    * The delimiter dropdown menu.
    */
@@ -66,7 +54,6 @@ export class CSVDelimiter extends Widget {
   handleEvent(event: Event): void {
     switch (event.type) {
       case 'change':
-        this._delimiterChanged.emit(this.selectNode.value);
         this._widget.delimiter = this.selectNode.value;
         break;
       default:
@@ -88,7 +75,6 @@ export class CSVDelimiter extends Widget {
     this.selectNode.removeEventListener('change', this);
   }
 
-  private _delimiterChanged = new Signal<this, string>(this);
   protected _widget: CSVViewer;
 }
 
@@ -140,7 +126,7 @@ namespace Private {
     const select = document.createElement('select');
     label.textContent = trans.__('Delimiter: ');
     label.className = CSV_DELIMITER_LABEL_CLASS;
-    each(delimiters, ([delimiter, label]) => {
+    for (const [delimiter, label] of delimiters) {
       const option = document.createElement('option');
       option.value = delimiter;
       option.textContent = label;
@@ -148,7 +134,7 @@ namespace Private {
         option.selected = true;
       }
       select.appendChild(option);
-    });
+    }
     div.appendChild(label);
     const node = Styling.wrapSelect(select);
     node.classList.add(CSV_DELIMITER_DROPDOWN_CLASS);
diff --git a/packages/csvviewer/src/widget.ts b/packages/csvviewer/src/widget.ts
index 7575a66791f3..2d13418b4114 100644
--- a/packages/csvviewer/src/widget.ts
+++ b/packages/csvviewer/src/widget.ts
@@ -9,18 +9,11 @@ import {
   IDocumentWidget
 } from '@jupyterlab/docregistry';
 import { PromiseDelegate } from '@lumino/coreutils';
-import {
-  BasicKeyHandler,
-  BasicMouseHandler,
-  BasicSelectionModel,
-  CellRenderer,
-  DataGrid,
-  TextRenderer
-} from '@lumino/datagrid';
+import type * as DataGridModule from '@lumino/datagrid';
 import { Message } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
 import { PanelLayout, Widget } from '@lumino/widgets';
-import { DSVModel } from './model';
+import type * as DSVModelModule from './model';
 import { CSVDelimiter } from './toolbar';
 
 /**
@@ -57,7 +50,7 @@ export class TextRenderConfig {
   /**
    * horizontalAlignment of the text
    */
-  horizontalAlignment: TextRenderer.HorizontalAlignment;
+  horizontalAlignment: DataGridModule.TextRenderer.HorizontalAlignment;
 }
 
 /**
@@ -67,7 +60,7 @@ export class TextRenderConfig {
  * to set the background color of cells matching the search text.
  */
 export class GridSearchService {
-  constructor(grid: DataGrid) {
+  constructor(grid: DataGridModule.DataGrid) {
     this._grid = grid;
     this._query = null;
     this._row = 0;
@@ -88,7 +81,7 @@ export class GridSearchService {
    */
   cellBackgroundColorRendererFunc(
     config: TextRenderConfig
-  ): CellRenderer.ConfigFunc<string> {
+  ): DataGridModule.CellRenderer.ConfigFunc<string> {
     return ({ value, row, column }) => {
       if (this._query) {
         if ((value as string).match(this._query)) {
@@ -216,7 +209,7 @@ export class GridSearchService {
     return this._query;
   }
 
-  private _grid: DataGrid;
+  private _grid: DataGridModule.DataGrid;
   private _query: RegExp | null;
   private _row: number;
   private _column: number;
@@ -234,11 +227,29 @@ export class CSVViewer extends Widget {
   constructor(options: CSVViewer.IOptions) {
     super();
 
-    const context = (this._context = options.context);
-    const layout = (this.layout = new PanelLayout());
+    this._context = options.context;
+    this.layout = new PanelLayout();
 
     this.addClass(CSV_CLASS);
 
+    this._ready = this.initialize();
+  }
+
+  /**
+   * Promise which resolves when the content is ready.
+   */
+  get ready(): Promise<void> {
+    return this._ready;
+  }
+
+  protected async initialize(): Promise<void> {
+    const layout = this.layout as PanelLayout;
+    if (this.isDisposed || !layout) {
+      return;
+    }
+    const { BasicKeyHandler, BasicMouseHandler, DataGrid } =
+      await Private.ensureDataGrid();
+    this._defaultStyle = DataGrid.defaultStyle;
     this._grid = new DataGrid({
       defaultSizes: {
         rowHeight: 24,
@@ -263,16 +274,15 @@ export class CSVViewer extends Widget {
     this._searchService = new GridSearchService(this._grid);
     this._searchService.changed.connect(this._updateRenderer, this);
 
-    void this._context.ready.then(() => {
-      this._updateGrid();
-      this._revealed.resolve(undefined);
-      // Throttle the rendering rate of the widget.
-      this._monitor = new ActivityMonitor({
-        signal: context.model.contentChanged,
-        timeout: RENDER_TIMEOUT
-      });
-      this._monitor.activityStopped.connect(this._updateGrid, this);
+    await this._context.ready;
+    await this._updateGrid();
+    this._revealed.resolve(undefined);
+    // Throttle the rendering rate of the widget.
+    this._monitor = new ActivityMonitor({
+      signal: this._context.model.contentChanged,
+      timeout: RENDER_TIMEOUT
     });
+    this._monitor.activityStopped.connect(this._updateGrid, this);
   }
 
   /**
@@ -300,17 +310,17 @@ export class CSVViewer extends Widget {
       return;
     }
     this._delimiter = value;
-    this._updateGrid();
+    void this._updateGrid();
   }
 
   /**
    * The style used by the data grid.
    */
-  get style(): DataGrid.Style {
+  get style(): DataGridModule.DataGrid.Style {
     return this._grid.style;
   }
-  set style(value: DataGrid.Style) {
-    this._grid.style = value;
+  set style(value: DataGridModule.DataGrid.Style) {
+    this._grid.style = { ...this._defaultStyle, ...value };
   }
 
   /**
@@ -318,7 +328,7 @@ export class CSVViewer extends Widget {
    */
   set rendererConfig(rendererConfig: TextRenderConfig) {
     this._baseRenderer = rendererConfig;
-    this._updateRenderer();
+    void this._updateRenderer();
   }
 
   /**
@@ -356,10 +366,12 @@ export class CSVViewer extends Widget {
   /**
    * Create the model for the grid.
    */
-  private _updateGrid(): void {
+  private async _updateGrid(): Promise<void> {
+    const { BasicSelectionModel } = await Private.ensureDataGrid();
+    const { DSVModel } = await Private.ensureDSVModel();
     const data: string = this._context.model.toString();
     const delimiter = this._delimiter;
-    const oldModel = this._grid.dataModel as DSVModel;
+    const oldModel = this._grid.dataModel as DSVModelModule.DSVModel;
     const dataModel = (this._grid.dataModel = new DSVModel({
       data,
       delimiter
@@ -373,17 +385,17 @@ export class CSVViewer extends Widget {
   /**
    * Update the renderer for the grid.
    */
-  private _updateRenderer(): void {
+  private async _updateRenderer(): Promise<void> {
     if (this._baseRenderer === null) {
       return;
     }
+    const { TextRenderer } = await Private.ensureDataGrid();
     const rendererConfig = this._baseRenderer;
     const renderer = new TextRenderer({
       textColor: rendererConfig.textColor,
       horizontalAlignment: rendererConfig.horizontalAlignment,
-      backgroundColor: this._searchService.cellBackgroundColorRendererFunc(
-        rendererConfig
-      )
+      backgroundColor:
+        this._searchService.cellBackgroundColorRendererFunc(rendererConfig)
     });
     this._grid.cellRenderers.update({
       body: renderer,
@@ -394,15 +406,15 @@ export class CSVViewer extends Widget {
   }
 
   private _context: DocumentRegistry.Context;
-  private _grid: DataGrid;
+  private _grid: DataGridModule.DataGrid;
+  private _defaultStyle: typeof DataGridModule.DataGrid.defaultStyle;
   private _searchService: GridSearchService;
-  private _monitor: ActivityMonitor<
-    DocumentRegistry.IModel,
-    void
-  > | null = null;
+  private _monitor: ActivityMonitor<DocumentRegistry.IModel, void> | null =
+    null;
   private _delimiter = ',';
   private _revealed = new PromiseDelegate<void>();
   private _baseRenderer: TextRenderConfig | null = null;
+  private _ready: Promise<void>;
 }
 
 /**
@@ -475,14 +487,6 @@ export namespace CSVDocumentWidget {
   }
 }
 
-namespace Private {
-  export function createContent(
-    context: DocumentRegistry.IContext<DocumentRegistry.IModel>
-  ): CSVViewer {
-    return new CSVViewer({ context });
-  }
-}
-
 /**
  * A widget factory for CSV widgets.
  */
@@ -535,3 +539,33 @@ export class TSVViewerFactory extends CSVViewerFactory {
     });
   }
 }
+
+namespace Private {
+  let gridLoaded: PromiseDelegate<typeof DataGridModule> | null = null;
+  let modelLoaded: PromiseDelegate<typeof DSVModelModule> | null = null;
+
+  /**
+   * Lazily load the datagrid module when the first grid is requested.
+   */
+  export async function ensureDataGrid(): Promise<typeof DataGridModule> {
+    if (gridLoaded == null) {
+      gridLoaded = new PromiseDelegate();
+      gridLoaded.resolve(await import('@lumino/datagrid'));
+    }
+    return gridLoaded.promise;
+  }
+
+  export async function ensureDSVModel(): Promise<typeof DSVModelModule> {
+    if (modelLoaded == null) {
+      modelLoaded = new PromiseDelegate();
+      modelLoaded.resolve(await import('./model'));
+    }
+    return modelLoaded.promise;
+  }
+
+  export function createContent(
+    context: DocumentRegistry.IContext<DocumentRegistry.IModel>
+  ): CSVViewer {
+    return new CSVViewer({ context });
+  }
+}
diff --git a/packages/csvviewer/style/base.css b/packages/csvviewer/style/base.css
index 52d9dd06bdad..de326aca17a3 100644
--- a/packages/csvviewer/style/base.css
+++ b/packages/csvviewer/style/base.css
@@ -7,6 +7,7 @@
   display: flex;
   flex-direction: column;
   outline: none;
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
diff --git a/packages/csvviewer/style/index.css b/packages/csvviewer/style/index.css
index a634b5e5550b..bc31bb236285 100644
--- a/packages/csvviewer/style/index.css
+++ b/packages/csvviewer/style/index.css
@@ -5,7 +5,6 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/csvviewer/style/index.js b/packages/csvviewer/style/index.js
index 0cb415bdc2fc..7e9ec60aadee 100644
--- a/packages/csvviewer/style/index.js
+++ b/packages/csvviewer/style/index.js
@@ -5,7 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 
 import './base.css';
diff --git a/packages/csvviewer/test/parse-noquotes.spec.ts b/packages/csvviewer/test/parse-noquotes.spec.ts
index beebadd22250..02bf20dc2555 100644
--- a/packages/csvviewer/test/parse-noquotes.spec.ts
+++ b/packages/csvviewer/test/parse-noquotes.spec.ts
@@ -19,18 +19,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        9,
-        11,
-        13,
-        15,
-        18,
-        20,
-        22,
-        24
+        0, 2, 4, 6, 9, 11, 13, 15, 18, 20, 22, 24
       ]);
     });
 
@@ -49,18 +38,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        12,
-        14,
-        16,
-        18,
-        20,
-        22
+        0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22
       ]);
     });
 
@@ -92,18 +70,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        12,
-        14,
-        16,
-        18,
-        20,
-        22
+        0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22
       ]);
     });
 
@@ -165,18 +132,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        10,
-        10,
-        11,
-        13,
-        15,
-        17
+        0, 2, 4, 6, 8, 10, 10, 10, 11, 13, 15, 17
       ]);
     });
 
@@ -193,18 +149,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        9,
-        11,
-        11,
-        11,
-        13,
-        15,
-        17,
-        19
+        0, 2, 4, 6, 9, 11, 11, 11, 13, 15, 17, 19
       ]);
     });
 
@@ -221,21 +166,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(5);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        7,
-        8,
-        10,
-        10,
-        10,
-        10,
-        11,
-        13,
-        15,
-        17,
-        19
+        0, 2, 4, 6, 7, 8, 10, 10, 10, 10, 11, 13, 15, 17, 19
       ]);
     });
 
@@ -252,21 +183,7 @@ describe('csvviewer/parsenoquotes', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(5);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        7,
-        9,
-        11,
-        11,
-        11,
-        11,
-        13,
-        15,
-        17,
-        19,
-        21
+        0, 2, 4, 6, 7, 9, 11, 11, 11, 11, 13, 15, 17, 19, 21
       ]);
     });
 
diff --git a/packages/csvviewer/test/parse.spec.ts b/packages/csvviewer/test/parse.spec.ts
index 7266c0392438..03e560686847 100644
--- a/packages/csvviewer/test/parse.spec.ts
+++ b/packages/csvviewer/test/parse.spec.ts
@@ -19,18 +19,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        9,
-        11,
-        13,
-        15,
-        18,
-        20,
-        22,
-        24
+        0, 2, 4, 6, 9, 11, 13, 15, 18, 20, 22, 24
       ]);
     });
 
@@ -49,18 +38,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        12,
-        14,
-        16,
-        18,
-        20,
-        22
+        0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22
       ]);
     });
 
@@ -92,18 +70,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        12,
-        14,
-        16,
-        18,
-        20,
-        22
+        0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22
       ]);
     });
 
@@ -165,18 +132,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        8,
-        10,
-        10,
-        10,
-        11,
-        13,
-        15,
-        17
+        0, 2, 4, 6, 8, 10, 10, 10, 11, 13, 15, 17
       ]);
     });
 
@@ -193,18 +149,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(4);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        9,
-        11,
-        11,
-        11,
-        13,
-        15,
-        17,
-        19
+        0, 2, 4, 6, 9, 11, 11, 11, 13, 15, 17, 19
       ]);
     });
 
@@ -221,21 +166,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(5);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        7,
-        8,
-        10,
-        10,
-        10,
-        10,
-        11,
-        13,
-        15,
-        17,
-        19
+        0, 2, 4, 6, 7, 8, 10, 10, 10, 10, 11, 13, 15, 17, 19
       ]);
     });
 
@@ -252,21 +183,7 @@ describe('csvviewer/parse', () => {
       expect(results.nrows).toEqual(3);
       expect(results.ncols).toEqual(5);
       expect(results.offsets).toEqual([
-        0,
-        2,
-        4,
-        6,
-        7,
-        9,
-        11,
-        11,
-        11,
-        11,
-        13,
-        15,
-        17,
-        19,
-        21
+        0, 2, 4, 6, 7, 9, 11, 11, 11, 11, 13, 15, 17, 19, 21
       ]);
     });
 
diff --git a/packages/csvviewer/test/toolbar.spec.ts b/packages/csvviewer/test/toolbar.spec.ts
index 410b948946cd..0a861c073df9 100644
--- a/packages/csvviewer/test/toolbar.spec.ts
+++ b/packages/csvviewer/test/toolbar.spec.ts
@@ -40,17 +40,14 @@ describe('csvviewer/toolbar', () => {
 
     describe('#delimiterChanged', () => {
       it('should emit a value when the dropdown value changes', () => {
-        const widget = new CSVDelimiter({ widget: mockViewer() });
-        let delimiterTest = '';
+        const parent = mockViewer();
+        const widget = new CSVDelimiter({ widget: parent });
         const index = DELIMITERS.length - 1;
         const wanted = DELIMITERS[index];
-        widget.delimiterChanged.connect((s, value) => {
-          delimiterTest = value;
-        });
         Widget.attach(widget, document.body);
         widget.selectNode.selectedIndex = index;
         simulate(widget.selectNode, 'change');
-        expect(delimiterTest).toBe(wanted);
+        expect(parent.delimiter).toBe(wanted);
         widget.dispose();
       });
     });
diff --git a/packages/csvviewer/test/widget.spec.ts b/packages/csvviewer/test/widget.spec.ts
index ff123174df8f..5057caaa5791 100644
--- a/packages/csvviewer/test/widget.spec.ts
+++ b/packages/csvviewer/test/widget.spec.ts
@@ -6,14 +6,14 @@ import {
   DocumentRegistry,
   TextModelFactory
 } from '@jupyterlab/docregistry';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { UUID } from '@lumino/coreutils';
 import { CellRenderer, DataGrid, JSONModel } from '@lumino/datagrid';
 import { CSVViewer, GridSearchService } from '../src';
 
 function createContext(): Context<DocumentRegistry.IModel> {
   const factory = new TextModelFactory();
-  const manager = new Mock.ServiceManagerMock();
+  const manager = new ServiceManagerMock();
   const path = UUID.uuid4() + '.csv';
   return new Context({ factory, manager, path });
 }
diff --git a/packages/csvviewer/tsconfig.json b/packages/csvviewer/tsconfig.json
index f254c03821a2..d736b690105b 100644
--- a/packages/csvviewer/tsconfig.json
+++ b/packages/csvviewer/tsconfig.json
@@ -6,9 +6,6 @@
   },
   "include": ["src/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../coreutils"
     },
@@ -17,6 +14,9 @@
     },
     {
       "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/csvviewer/tsconfig.test.json b/packages/csvviewer/tsconfig.test.json
index 65ff200e0b26..8aa705726f5e 100644
--- a/packages/csvviewer/tsconfig.test.json
+++ b/packages/csvviewer/tsconfig.test.json
@@ -2,9 +2,6 @@
   "extends": "../../tsconfigbase.test",
   "include": ["src/*", "test/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../coreutils"
     },
@@ -15,22 +12,13 @@
       "path": "../translation"
     },
     {
-      "path": "."
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
+      "path": "../ui-components"
     },
     {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docregistry"
+      "path": "."
     },
     {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/debugger-extension/package.json b/packages/debugger-extension/package.json
index 114107f56643..8a0c11222035 100644
--- a/packages/debugger-extension/package.json
+++ b/packages/debugger-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/debugger-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Debugger Extension",
   "keywords": [
     "jupyter",
@@ -34,7 +34,8 @@
     "schema/*.json",
     "style/**/*.css",
     "style/**/*.svg",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -43,32 +44,29 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/debugger": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/logconsole": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/debugger": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/logconsole": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
-    "@babel/core": "^7.10.2",
-    "@babel/preset-env": "^7.10.2",
-    "@types/codemirror": "^0.0.109",
-    "@types/react-dom": "^17.0.0",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react-dom": "^18.0.9",
     "rimraf": "~3.0.0",
-    "shell-quote": "^1.7.2",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/debugger-extension/schema/main.json b/packages/debugger-extension/schema/main.json
index e874db891268..0ae257ff4df9 100644
--- a/packages/debugger-extension/schema/main.json
+++ b/packages/debugger-extension/schema/main.json
@@ -30,24 +30,22 @@
       {
         "command": "debugger:render-mime-variable",
         "selector": ".jp-DebuggerVariables-body"
+      },
+      {
+        "command": "debugger:copy-to-clipboard",
+        "selector": ".jp-DebuggerVariables-body"
+      },
+      {
+        "command": "debugger:copy-to-globals",
+        "selector": ".jp-DebuggerVariables-body.jp-debuggerVariables-local"
       }
     ]
   },
   "jupyter.lab.shortcuts": [
     {
-      "command": "debugger:debug-console",
-      "keys": ["Accel Shift I"],
-      "selector": ".jp-CodeConsole"
-    },
-    {
-      "command": "debugger:debug-file",
-      "keys": ["Accel Shift I"],
-      "selector": ".jp-FileEditor"
-    },
-    {
-      "command": "debugger:debug-notebook",
-      "keys": ["Accel Shift I"],
-      "selector": ".jp-Notebook"
+      "command": "debugger:show-panel",
+      "keys": ["Accel Shift E"],
+      "selector": "body"
     },
     {
       "command": "debugger:continue",
diff --git a/packages/debugger-extension/src/index.ts b/packages/debugger-extension/src/index.ts
index 747ded66eb02..0bcddcc6d37e 100644
--- a/packages/debugger-extension/src/index.ts
+++ b/packages/debugger-extension/src/index.ts
@@ -12,14 +12,17 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import {
+  Clipboard,
   ICommandPalette,
+  InputDialog,
+  ISessionContextDialogs,
   IThemeManager,
   MainAreaWidget,
-  sessionContextDialogs,
+  SessionContextDialogs,
   WidgetTracker
 } from '@jupyterlab/apputils';
+import { CodeCell } from '@jupyterlab/cells';
 import { IEditorServices } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
 import { ConsolePanel, IConsoleTracker } from '@jupyterlab/console';
 import { PageConfig, PathExt } from '@jupyterlab/coreutils';
 import {
@@ -45,13 +48,23 @@ import {
 } from '@jupyterlab/rendermime';
 import { Session } from '@jupyterlab/services';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { ITranslator } from '@jupyterlab/translation';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+
+function notifyCommands(app: JupyterFrontEnd): void {
+  Object.values(Debugger.CommandIDs).forEach(command => {
+    if (app.commands.hasCommand(command)) {
+      app.commands.notifyCommandChanged(command);
+    }
+  });
+}
 
 /**
  * A plugin that provides visual debugging support for consoles.
  */
 const consoles: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/console-extension
   id: '@jupyterlab/debugger-extension:consoles',
+  description: 'Add debugger capability to the consoles.',
   autoStart: true,
   requires: [IDebugger, IConsoleTracker],
   optional: [ILabShell],
@@ -73,7 +86,7 @@ const consoles: JupyterFrontEndPlugin<void> = {
       const { sessionContext } = widget;
       await sessionContext.ready;
       await handler.updateContext(widget, sessionContext);
-      app.commands.notifyCommandChanged();
+      notifyCommands(app);
     };
 
     if (labShell) {
@@ -97,7 +110,9 @@ const consoles: JupyterFrontEndPlugin<void> = {
  * A plugin that provides visual debugging support for file editors.
  */
 const files: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/fileeditor-extension
   id: '@jupyterlab/debugger-extension:files',
+  description: 'Adds debugger capabilities to files.',
   autoStart: true,
   requires: [IDebugger, IEditorTracker],
   optional: [ILabShell],
@@ -136,7 +151,7 @@ const files: JupyterFrontEndPlugin<void> = {
           activeSessions[model.id] = session;
         }
         await handler.update(widget, session);
-        app.commands.notifyCommandChanged();
+        notifyCommands(app);
       } catch {
         return;
       }
@@ -156,7 +171,7 @@ const files: JupyterFrontEndPlugin<void> = {
       editorTracker.currentChanged.connect((_, documentWidget) => {
         if (documentWidget) {
           void updateHandlerAndCommands(
-            (documentWidget as unknown) as DocumentWidget
+            documentWidget as unknown as DocumentWidget
           );
         }
       });
@@ -168,19 +183,26 @@ const files: JupyterFrontEndPlugin<void> = {
  * A plugin that provides visual debugging support for notebooks.
  */
 const notebooks: JupyterFrontEndPlugin<IDebugger.IHandler> = {
+  // FIXME This should be in @jupyterlab/notebook-extension
   id: '@jupyterlab/debugger-extension:notebooks',
+  description:
+    'Adds debugger capability to notebooks and provides the debugger notebook handler.',
   autoStart: true,
-  requires: [IDebugger, INotebookTracker, ITranslator],
-  optional: [ILabShell, ICommandPalette],
+  requires: [IDebugger, INotebookTracker],
+  optional: [ILabShell, ICommandPalette, ISessionContextDialogs, ITranslator],
   provides: IDebuggerHandler,
   activate: (
     app: JupyterFrontEnd,
     service: IDebugger,
     notebookTracker: INotebookTracker,
-    translator: ITranslator,
     labShell: ILabShell | null,
-    palette: ICommandPalette | null
+    palette: ICommandPalette | null,
+    sessionDialogs_: ISessionContextDialogs | null,
+    translator_: ITranslator | null
   ): Debugger.Handler => {
+    const translator = translator_ ?? nullTranslator;
+    const sessionDialogs =
+      sessionDialogs_ ?? new SessionContextDialogs({ translator });
     const handler = new Debugger.Handler({
       type: 'notebook',
       shell: app.shell,
@@ -202,14 +224,19 @@ const notebooks: JupyterFrontEndPlugin<IDebugger.IHandler> = {
         }
 
         const { content, sessionContext } = widget;
-        const restarted = await sessionContextDialogs.restart(sessionContext);
+        const restarted = await sessionDialogs.restart(sessionContext);
         if (!restarted) {
           return;
         }
 
         await service.restoreDebuggerState(state);
         await handler.updateWidget(widget, sessionContext.session);
-        await NotebookActions.runAll(content, sessionContext);
+        await NotebookActions.runAll(
+          content,
+          sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     });
 
@@ -221,7 +248,7 @@ const notebooks: JupyterFrontEndPlugin<IDebugger.IHandler> = {
         await sessionContext.ready;
         await handler.updateContext(widget, sessionContext);
       }
-      app.commands.notifyCommandChanged();
+      notifyCommands(app);
     };
 
     if (labShell) {
@@ -255,19 +282,22 @@ const notebooks: JupyterFrontEndPlugin<IDebugger.IHandler> = {
  */
 const service: JupyterFrontEndPlugin<IDebugger> = {
   id: '@jupyterlab/debugger-extension:service',
+  description: 'Provides the debugger service.',
   autoStart: true,
   provides: IDebugger,
   requires: [IDebuggerConfig],
-  optional: [IDebuggerSources],
+  optional: [IDebuggerSources, ITranslator],
   activate: (
     app: JupyterFrontEnd,
     config: IDebugger.IConfig,
-    debuggerSources: IDebugger.ISources | null
+    debuggerSources: IDebugger.ISources | null,
+    translator: ITranslator | null
   ) =>
     new Debugger.Service({
       config,
       debuggerSources,
-      specsManager: app.serviceManager.kernelspecs
+      specsManager: app.serviceManager.kernelspecs,
+      translator
     })
 };
 
@@ -276,6 +306,7 @@ const service: JupyterFrontEndPlugin<IDebugger> = {
  */
 const configuration: JupyterFrontEndPlugin<IDebugger.IConfig> = {
   id: '@jupyterlab/debugger-extension:config',
+  description: 'Provides the debugger configuration',
   provides: IDebuggerConfig,
   autoStart: true,
   activate: () => new Debugger.Config()
@@ -286,6 +317,7 @@ const configuration: JupyterFrontEndPlugin<IDebugger.IConfig> = {
  */
 const sources: JupyterFrontEndPlugin<IDebugger.ISources> = {
   id: '@jupyterlab/debugger-extension:sources',
+  description: 'Provides the source feature for debugging',
   autoStart: true,
   provides: IDebuggerSources,
   requires: [IDebuggerConfig, IEditorServices],
@@ -313,6 +345,8 @@ const sources: JupyterFrontEndPlugin<IDebugger.ISources> = {
  */
 const variables: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/debugger-extension:variables',
+  description:
+    'Adds variables renderer and inspection in the debugger variable panel.',
   autoStart: true,
   requires: [IDebugger, IDebuggerHandler, ITranslator],
   optional: [IThemeManager, IRenderMimeRegistry],
@@ -340,9 +374,11 @@ const variables: JupyterFrontEndPlugin<void> = {
       caption: trans.__('Inspect Variable'),
       isEnabled: args =>
         !!service.session?.isStarted &&
-        (args.variableReference ??
-          service.model.variables.selectedVariable?.variablesReference ??
-          0) > 0,
+        Number(
+          args.variableReference ??
+            service.model.variables.selectedVariable?.variablesReference ??
+            0
+        ) > 0,
       execute: async args => {
         let { variableReference, name } = args as {
           variableReference?: number;
@@ -394,7 +430,8 @@ const variables: JupyterFrontEndPlugin<void> = {
         model.changed.connect(disposeWidget);
         shell.add(widget, 'main', {
           mode: tracker.currentWidget ? 'split-right' : 'split-bottom',
-          activate: false
+          activate: false,
+          type: 'Debugger Variables'
         });
       }
     });
@@ -471,10 +508,42 @@ const variables: JupyterFrontEndPlugin<void> = {
 
         shell.add(widget, 'main', {
           mode: trackerMime.currentWidget ? 'split-right' : 'split-bottom',
-          activate: false
+          activate: false,
+          type: 'Debugger Variables'
         });
       }
     });
+
+    commands.addCommand(CommandIDs.copyToClipboard, {
+      label: trans.__('Copy to Clipboard'),
+      caption: trans.__('Copy text representation of the value to clipboard'),
+      isEnabled: () => {
+        return (
+          !!service.session?.isStarted &&
+          !!service.model.variables.selectedVariable?.value
+        );
+      },
+      isVisible: () => handler.activeWidget instanceof NotebookPanel,
+      execute: async () => {
+        const value = service.model.variables.selectedVariable!.value;
+        if (value) {
+          Clipboard.copyToSystem(value);
+        }
+      }
+    });
+
+    commands.addCommand(CommandIDs.copyToGlobals, {
+      label: trans.__('Copy Variable to Globals'),
+      caption: trans.__('Copy variable to globals scope'),
+      isEnabled: () => !!service.session?.isStarted,
+      isVisible: () =>
+        handler.activeWidget instanceof NotebookPanel &&
+        service.model.supportCopyToGlobals,
+      execute: async args => {
+        const name = service.model.variables.selectedVariable!.name;
+        await service.copyToGlobals(name);
+      }
+    });
   }
 };
 
@@ -483,6 +552,7 @@ const variables: JupyterFrontEndPlugin<void> = {
  */
 const sidebar: JupyterFrontEndPlugin<IDebugger.ISidebar> = {
   id: '@jupyterlab/debugger-extension:sidebar',
+  description: 'Provides the debugger sidebar.',
   provides: IDebuggerSidebar,
   requires: [IDebugger, IEditorServices, ITranslator],
   optional: [IThemeManager, ISettingRegistry],
@@ -510,7 +580,7 @@ const sidebar: JupyterFrontEndPlugin<IDebugger.ISidebar> = {
 
     const breakpointsCommands = {
       registry: commands,
-      pause: CommandIDs.pause
+      pauseOnExceptions: CommandIDs.pauseOnExceptions
     };
 
     const sidebar = new Debugger.Sidebar({
@@ -550,6 +620,7 @@ const sidebar: JupyterFrontEndPlugin<IDebugger.ISidebar> = {
  */
 const main: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/debugger-extension:main',
+  description: 'Initialize the debugger user interface.',
   requires: [IDebugger, IDebuggerSidebar, IEditorServices, ITranslator],
   optional: [
     ICommandPalette,
@@ -606,7 +677,7 @@ const main: JupyterFrontEndPlugin<void> = {
       const info = (await kernel.info).language_info;
       const name = info.name;
       const mimeType =
-        editorServices?.mimeTypeService.getMimeTypeByLanguage({ name }) ?? '';
+        editorServices.mimeTypeService.getMimeTypeByLanguage({ name }) ?? '';
       return mimeType;
     };
 
@@ -624,6 +695,10 @@ const main: JupyterFrontEndPlugin<void> = {
           okLabel: trans.__('Evaluate'),
           cancelLabel: trans.__('Cancel'),
           mimeType,
+          contentFactory: new CodeCell.ContentFactory({
+            editorFactory: options =>
+              editorServices.factoryService.newInlineEditor(options)
+          }),
           rendermime
         });
         const code = result.value;
@@ -670,7 +745,7 @@ const main: JupyterFrontEndPlugin<void> = {
         } else {
           await service.pause();
         }
-        commands.notifyCommandChanged();
+        commands.notifyCommandChanged(CommandIDs.debugContinue);
       }
     });
 
@@ -681,7 +756,7 @@ const main: JupyterFrontEndPlugin<void> = {
       isEnabled: () => service.hasStoppedThreads(),
       execute: async () => {
         await service.restart();
-        commands.notifyCommandChanged();
+        notifyCommands(app);
       }
     });
 
@@ -715,25 +790,34 @@ const main: JupyterFrontEndPlugin<void> = {
       }
     });
 
-    commands.addCommand(CommandIDs.pause, {
-      label: trans.__('Enable / Disable pausing on exceptions'),
-      caption: () =>
-        service.isStarted
-          ? service.pauseOnExceptionsIsValid()
-            ? service.isPausingOnExceptions
-              ? trans.__('Disable pausing on exceptions')
-              : trans.__('Enable pausing on exceptions')
-            : trans.__('Kernel does not support pausing on exceptions.')
-          : trans.__('Enable / Disable pausing on exceptions'),
-      className: 'jp-PauseOnExceptions',
-      icon: Debugger.Icons.pauseOnExceptionsIcon,
-      isToggled: () => {
-        return service.isPausingOnExceptions;
-      },
+    commands.addCommand(CommandIDs.pauseOnExceptions, {
+      label: args => (args.filter as string) || 'Breakpoints on exception',
+      caption: args => args.description as string,
+      isToggled: args =>
+        service.session?.isPausingOnException(args.filter as string) || false,
       isEnabled: () => service.pauseOnExceptionsIsValid(),
-      execute: async () => {
-        await service.pauseOnExceptions(!service.isPausingOnExceptions);
-        commands.notifyCommandChanged();
+      execute: async args => {
+        if (args?.filter) {
+          let filter = args.filter as string;
+          await service.pauseOnExceptionsFilter(filter as string);
+        } else {
+          let items: string[] = [];
+          service.session?.exceptionBreakpointFilters?.forEach(
+            availableFilter => {
+              items.push(availableFilter.filter);
+            }
+          );
+          const result = await InputDialog.getMultipleItems({
+            title: trans.__('Select a filter for breakpoints on exception'),
+            items: items,
+            defaults: service.session?.currentExceptionFilters || []
+          });
+
+          let filters = result.button.accept ? result.value : null;
+          if (filters !== null) {
+            await service.pauseOnExceptions(filters);
+          }
+        }
       }
     });
 
@@ -750,7 +834,7 @@ const main: JupyterFrontEndPlugin<void> = {
     }
 
     service.eventMessage.connect((_, event): void => {
-      commands.notifyCommandChanged();
+      notifyCommands(app);
       if (labShell && event.event === 'initialized') {
         labShell.activateById(sidebar.id);
       } else if (
@@ -764,7 +848,7 @@ const main: JupyterFrontEndPlugin<void> = {
     });
 
     service.sessionChanged.connect(_ => {
-      commands.notifyCommandChanged();
+      notifyCommands(app);
     });
 
     if (restorer) {
@@ -774,7 +858,16 @@ const main: JupyterFrontEndPlugin<void> = {
     sidebar.node.setAttribute('role', 'region');
     sidebar.node.setAttribute('aria-label', trans.__('Debugger section'));
 
-    shell.add(sidebar, 'right');
+    sidebar.title.caption = trans.__('Debugger');
+
+    shell.add(sidebar, 'right', { type: 'Debugger' });
+
+    commands.addCommand(CommandIDs.showPanel, {
+      label: trans.__('Debugger Panel'),
+      execute: () => {
+        shell.activateById(sidebar.id);
+      }
+    });
 
     if (palette) {
       const category = trans.__('Debugger');
@@ -785,7 +878,7 @@ const main: JupyterFrontEndPlugin<void> = {
         CommandIDs.stepIn,
         CommandIDs.stepOut,
         CommandIDs.evaluate,
-        CommandIDs.pause
+        CommandIDs.pauseOnExceptions
       ].forEach(command => {
         palette.addItem({ command, category });
       });
@@ -810,22 +903,17 @@ const main: JupyterFrontEndPlugin<void> = {
           })
           .forEach(editor => {
             requestAnimationFrame(() => {
-              Debugger.EditorHandler.showCurrentLine(editor, frame.line);
+              void editor.reveal().then(() => {
+                const edit = editor.get();
+                if (edit) {
+                  Debugger.EditorHandler.showCurrentLine(edit, frame.line);
+                }
+              });
             });
           });
       };
-      const onKernelSourceOpened = (
-        _: IDebugger.Model.IKernelSources | null,
-        source: IDebugger.Source,
-        breakpoint?: IDebugger.IBreakpoint
-      ): void => {
-        if (!source) {
-          return;
-        }
-        onCurrentSourceOpened(null, source, breakpoint);
-      };
 
-      const onCurrentSourceOpened = (
+      const onSourceOpened = (
         _: IDebugger.Model.ISources | null,
         source: IDebugger.Source,
         breakpoint?: IDebugger.IBreakpoint
@@ -843,17 +931,12 @@ const main: JupyterFrontEndPlugin<void> = {
         if (results.length > 0) {
           if (breakpoint && typeof breakpoint.line !== 'undefined') {
             results.forEach(editor => {
-              if (editor instanceof CodeMirrorEditor) {
-                (editor as CodeMirrorEditor).scrollIntoViewCentered({
-                  line: (breakpoint.line as number) - 1,
-                  ch: breakpoint.column || 0
-                });
-              } else {
-                editor.revealPosition({
+              void editor.reveal().then(() => {
+                editor.get()?.revealPosition({
                   line: (breakpoint.line as number) - 1,
                   column: breakpoint.column || 0
                 });
-              }
+              });
             });
           }
           return;
@@ -866,8 +949,10 @@ const main: JupyterFrontEndPlugin<void> = {
         const editor = editorWrapper.editor;
         const editorHandler = new Debugger.EditorHandler({
           debuggerService: service,
-          editor,
-          path
+          editorReady: () => Promise.resolve(editor),
+          getEditor: () => editor,
+          path,
+          src: editor.model.sharedModel
         });
         editorWrapper.disposed.connect(() => editorHandler.dispose());
 
@@ -883,8 +968,19 @@ const main: JupyterFrontEndPlugin<void> = {
         }
       };
 
+      const onKernelSourceOpened = (
+        _: IDebugger.Model.IKernelSources | null,
+        source: IDebugger.Source,
+        breakpoint?: IDebugger.IBreakpoint
+      ): void => {
+        if (!source) {
+          return;
+        }
+        onSourceOpened(null, source, breakpoint);
+      };
+
       model.callstack.currentFrameChanged.connect(onCurrentFrameChanged);
-      model.sources.currentSourceOpened.connect(onCurrentSourceOpened);
+      model.sources.currentSourceOpened.connect(onSourceOpened);
       model.kernelSources.kernelSourceOpened.connect(onKernelSourceOpened);
       model.breakpoints.clicked.connect(async (_, breakpoint) => {
         const path = breakpoint.source?.path;
@@ -892,7 +988,7 @@ const main: JupyterFrontEndPlugin<void> = {
           sourceReference: 0,
           path
         });
-        onCurrentSourceOpened(null, source, breakpoint);
+        onSourceOpened(null, source, breakpoint);
       });
     }
   }
diff --git a/packages/debugger-extension/style/index.css b/packages/debugger-extension/style/index.css
index 3c66b3b731a4..4c019cdf83f1 100644
--- a/packages/debugger-extension/style/index.css
+++ b/packages/debugger-extension/style/index.css
@@ -6,10 +6,10 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/cells/style/index.css');
 @import url('~@jupyterlab/console/style/index.css');
 @import url('~@jupyterlab/fileeditor/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
diff --git a/packages/debugger-extension/style/index.js b/packages/debugger-extension/style/index.js
index 81ecf8e6b12a..ad5231363d6c 100644
--- a/packages/debugger-extension/style/index.js
+++ b/packages/debugger-extension/style/index.js
@@ -6,10 +6,10 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/cells/style/index.js';
 import '@jupyterlab/console/style/index.js';
 import '@jupyterlab/fileeditor/style/index.js';
 import '@jupyterlab/notebook/style/index.js';
diff --git a/packages/debugger-extension/tsconfig.json b/packages/debugger-extension/tsconfig.json
index acbf89f4a341..0d74f4282503 100644
--- a/packages/debugger-extension/tsconfig.json
+++ b/packages/debugger-extension/tsconfig.json
@@ -13,10 +13,10 @@
       "path": "../apputils"
     },
     {
-      "path": "../codeeditor"
+      "path": "../cells"
     },
     {
-      "path": "../codemirror"
+      "path": "../codeeditor"
     },
     {
       "path": "../console"
diff --git a/packages/debugger/babel.config.js b/packages/debugger/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/debugger/babel.config.js
+++ b/packages/debugger/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/debugger/jest.config.js b/packages/debugger/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/debugger/jest.config.js
+++ b/packages/debugger/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/debugger/package.json b/packages/debugger/package.json
index bbacd2ddf251..af9fb29003bf 100644
--- a/packages/debugger/package.json
+++ b/packages/debugger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/debugger",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Debugger Extension",
   "keywords": [
     "jupyter",
@@ -34,67 +34,59 @@
     "schema/*.json",
     "style/**/*.css",
     "style/**/*.svg",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo && rimraf tsconfig.test.tsbuildinfo && rimraf tests/build",
     "docs": "typedoc --options tdoptions.json --theme ../../typedoc-theme src",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test": "jest -i",
+    "test:cov": "jest -i --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/datagrid": "^0.36.7",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
+    "@codemirror/state": "^6.2.0",
+    "@codemirror/view": "^6.9.6",
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/datagrid": "^2.2.0",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
     "@vscode/debugprotocol": "^1.51.0",
-    "codemirror": "~5.61.0",
-    "react": "^17.0.1"
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.10.2",
-    "@babel/preset-env": "^7.10.2",
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/codemirror": "^0.0.109",
-    "@types/jest": "^26.0.10",
-    "@types/react-dom": "^17.0.0",
-    "@types/text-encoding": "^0.0.35",
-    "canvas": "^2.6.1",
-    "jest": "^26.4.2",
-    "jest-junit": "^11.1.0",
-    "jest-raw-loader": "^1.0.1",
-    "jest-summary-reporter": "^0.0.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "canvas": "^2.11.2",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "shell-quote": "^1.7.2",
-    "text-encoding": "^0.7.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/debugger/src/debugger.ts b/packages/debugger/src/debugger.ts
index be10b0760812..a19285b1610e 100644
--- a/packages/debugger/src/debugger.ts
+++ b/packages/debugger/src/debugger.ts
@@ -106,6 +106,8 @@ export namespace Debugger {
 
     export const next = 'debugger:next';
 
+    export const showPanel = 'debugger:show-panel';
+
     export const stepIn = 'debugger:stepIn';
 
     export const stepOut = 'debugger:stepOut';
@@ -118,7 +120,11 @@ export namespace Debugger {
 
     export const restartDebug = 'debugger:restart-debug';
 
-    export const pause = 'debugger:pause';
+    export const pauseOnExceptions = 'debugger:pause-on-exceptions';
+
+    export const copyToClipboard = 'debugger:copy-to-clipboard';
+
+    export const copyToGlobals = 'debugger:copy-to-globals';
   }
 
   /**
diff --git a/packages/debugger/src/dialogs/evaluate.ts b/packages/debugger/src/dialogs/evaluate.ts
index f848a2799195..bd1a1851eb02 100644
--- a/packages/debugger/src/dialogs/evaluate.ts
+++ b/packages/debugger/src/dialogs/evaluate.ts
@@ -1,6 +1,11 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { Dialog } from '@jupyterlab/apputils';
 
-import { CodeCell, CodeCellModel } from '@jupyterlab/cells';
+import { Cell, CodeCell, CodeCellModel } from '@jupyterlab/cells';
 
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 
@@ -21,6 +26,11 @@ export namespace DebuggerEvaluateDialog {
      */
     title: string;
 
+    /**
+     * Cell content factory.
+     */
+    contentFactory: Cell.IContentFactory;
+
     /**
      * The mime renderer for the cell widget.
      */
@@ -98,17 +108,19 @@ class EvaluateDialogBody extends Widget implements Dialog.IBodyWidget<string> {
   constructor(options: DebuggerEvaluateDialog.IOptions) {
     super();
 
-    const { rendermime, mimeType } = options;
+    const { contentFactory, rendermime, mimeType } = options;
 
-    const model = new CodeCellModel({});
+    const model = new CodeCellModel();
     model.mimeType = mimeType ?? '';
     this._prompt = new CodeCell({
+      contentFactory,
       rendermime,
-      model
+      model,
+      placeholder: false
     }).initializeState();
 
     // explicitly remove the prompt in front of the input area
-    this._prompt.inputArea.promptNode.remove();
+    this._prompt.inputArea!.promptNode.remove();
 
     this.node.appendChild(this._prompt.node);
   }
@@ -117,7 +129,7 @@ class EvaluateDialogBody extends Widget implements Dialog.IBodyWidget<string> {
    * Get the text specified by the user
    */
   getValue(): string {
-    return this._prompt.model.value.text;
+    return this._prompt.model.sharedModel.getSource();
   }
 
   /**
diff --git a/packages/debugger/src/factory.ts b/packages/debugger/src/factory.ts
index 59cea43f52d2..cc8cf9d0fdd5 100644
--- a/packages/debugger/src/factory.ts
+++ b/packages/debugger/src/factory.ts
@@ -6,8 +6,7 @@ import {
   CodeEditorWrapper,
   IEditorServices
 } from '@jupyterlab/codeeditor';
-
-import { IDebugger } from '.';
+import { IDebugger } from './tokens';
 
 /**
  * A widget factory for read only editors.
@@ -31,18 +30,26 @@ export class ReadOnlyEditorFactory {
     const { content, mimeType, path } = source;
     const factory = this._services.factoryService.newInlineEditor;
     const mimeTypeService = this._services.mimeTypeService;
+    const model = new CodeEditor.Model({
+      mimeType: mimeType || mimeTypeService.getMimeTypeByFilePath(path)
+    });
+    model.sharedModel.source = content;
     const editor = new CodeEditorWrapper({
-      model: new CodeEditor.Model({
-        value: content,
-        mimeType: mimeType || mimeTypeService.getMimeTypeByFilePath(path)
-      }),
-      factory,
-      config: {
-        readOnly: true,
-        lineNumbers: true
-      }
+      editorOptions: {
+        config: {
+          readOnly: true,
+          lineNumbers: true
+        }
+      },
+      model,
+      factory
     });
     editor.node.setAttribute('data-jp-debugger', 'true');
+
+    editor.disposed.connect(() => {
+      model.dispose();
+    });
+
     return editor;
   }
 
diff --git a/packages/debugger/src/handler.ts b/packages/debugger/src/handler.ts
index 81dc3e903c37..f922664f2a0b 100644
--- a/packages/debugger/src/handler.ts
+++ b/packages/debugger/src/handler.ts
@@ -2,38 +2,20 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { JupyterFrontEnd } from '@jupyterlab/application';
-
-import {
-  ISessionContext,
-  SessionContext,
-  ToolbarButton
-} from '@jupyterlab/apputils';
-
+import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
 import { ConsolePanel } from '@jupyterlab/console';
-
 import { IChangedArgs } from '@jupyterlab/coreutils';
-
 import { DocumentWidget } from '@jupyterlab/docregistry';
-
 import { FileEditor } from '@jupyterlab/fileeditor';
-
 import { NotebookPanel } from '@jupyterlab/notebook';
-
 import { Kernel, KernelMessage, Session } from '@jupyterlab/services';
-
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { bugDotIcon, bugIcon } from '@jupyterlab/ui-components';
-
+import { bugDotIcon, bugIcon, ToolbarButton } from '@jupyterlab/ui-components';
 import { Debugger } from './debugger';
-
-import { IDebugger } from './tokens';
-
 import { ConsoleHandler } from './handlers/console';
-
 import { FileHandler } from './handlers/file';
-
 import { NotebookHandler } from './handlers/notebook';
+import { IDebugger } from './tokens';
 
 const TOOLBAR_DEBUGGER_ITEM = 'debugger-icon';
 
@@ -152,7 +134,6 @@ export class DebuggerHandler implements DebuggerHandler.IHandler {
       _: Session.ISessionConnection,
       status: Kernel.Status
     ): void => {
-      // FIXME-TRANS: Localizable?
       if (status.endsWith('restarting')) {
         void this.updateWidget(widget, connection);
       }
@@ -169,7 +150,6 @@ export class DebuggerHandler implements DebuggerHandler.IHandler {
       msg: KernelMessage.IIOPubMessage
     ): void => {
       if (
-        msg.parent_header != {} &&
         (msg.parent_header as KernelMessage.IHeader).msg_type ==
           'execute_request' &&
         this._service.isStarted &&
@@ -205,9 +185,8 @@ export class DebuggerHandler implements DebuggerHandler.IHandler {
       void this.update(widget, connection);
     };
 
-    const contextKernelChangedHandlers = this._contextKernelChangedHandlers[
-      widget.id
-    ];
+    const contextKernelChangedHandlers =
+      this._contextKernelChangedHandlers[widget.id];
 
     if (contextKernelChangedHandlers) {
       sessionContext.kernelChanged.disconnect(contextKernelChangedHandlers);
@@ -379,7 +358,10 @@ export class DebuggerHandler implements DebuggerHandler.IHandler {
 
     // update the active debug session
     if (!this._service.session) {
-      this._service.session = new Debugger.Session({ connection });
+      this._service.session = new Debugger.Session({
+        connection,
+        config: this._service.config
+      });
     } else {
       this._previousConnection = this._service.session!.connection?.kernel
         ? this._service.session.connection
diff --git a/packages/debugger/src/handlers/console.ts b/packages/debugger/src/handlers/console.ts
index 6080f3bdba13..724e753deab2 100644
--- a/packages/debugger/src/handlers/console.ts
+++ b/packages/debugger/src/handlers/console.ts
@@ -7,8 +7,6 @@ import { Cell, CodeCell } from '@jupyterlab/cells';
 
 import { IObservableMap, ObservableMap } from '@jupyterlab/observables';
 
-import { each } from '@lumino/algorithm';
-
 import { IDisposable } from '@lumino/disposable';
 
 import { Signal } from '@lumino/signaling';
@@ -41,7 +39,9 @@ export class ConsoleHandler implements IDisposable {
     });
 
     const addHandlers = (): void => {
-      each(codeConsole.cells, cell => this._addEditorHandler(cell));
+      for (const cell of codeConsole.cells) {
+        this._addEditorHandler(cell);
+      }
     };
     addHandlers();
     this._consolePanel.console.cells.changed.connect(addHandlers);
@@ -78,7 +78,12 @@ export class ConsoleHandler implements IDisposable {
     const codeCell = cell as CodeCell;
     const editorHandler = new EditorHandler({
       debuggerService: this._debuggerService,
-      editor: codeCell.editor
+      editorReady: async () => {
+        await codeCell.ready;
+        return codeCell.editor!;
+      },
+      getEditor: () => codeCell.editor,
+      src: cell.model.sharedModel
     });
     codeCell.disposed.connect(() => {
       this._cellMap.delete(modelId);
diff --git a/packages/debugger/src/handlers/editor.ts b/packages/debugger/src/handlers/editor.ts
index 5eee429da55b..9e6645d1d7b1 100644
--- a/packages/debugger/src/handlers/editor.ts
+++ b/packages/debugger/src/handlers/editor.ts
@@ -7,13 +7,28 @@ import { CodeMirrorEditor } from '@jupyterlab/codemirror';
 
 import { ActivityMonitor } from '@jupyterlab/coreutils';
 
-import { IObservableString } from '@jupyterlab/observables';
-
 import { IDisposable } from '@lumino/disposable';
 
 import { Signal } from '@lumino/signaling';
 
-import { Editor } from 'codemirror';
+import { ISharedText, SourceChange } from '@jupyter/ydoc';
+
+import {
+  Compartment,
+  Prec,
+  RangeSet,
+  StateEffect,
+  StateEffectType,
+  StateField
+} from '@codemirror/state';
+
+import {
+  Decoration,
+  DecorationSet,
+  EditorView,
+  gutter,
+  GutterMarker
+} from '@codemirror/view';
 
 import { IDebugger } from '../tokens';
 
@@ -37,13 +52,14 @@ export class EditorHandler implements IDisposable {
    * @param options The instantiation options for a EditorHandler.
    */
   constructor(options: EditorHandler.IOptions) {
+    this._src = options.src;
     this._id = options.debuggerService.session?.connection?.id ?? '';
     this._path = options.path ?? '';
     this._debuggerService = options.debuggerService;
-    this._editor = options.editor;
+    this._editor = options.getEditor;
 
     this._editorMonitor = new ActivityMonitor({
-      signal: this._editor.model.value.changed,
+      signal: this._src.changed,
       timeout: EDITOR_CHANGED_TIMEOUT
     });
     this._editorMonitor.activityStopped.connect(() => {
@@ -51,31 +67,92 @@ export class EditorHandler implements IDisposable {
     }, this);
 
     this._debuggerService.model.breakpoints.changed.connect(async () => {
-      if (!this._editor || this._editor.isDisposed) {
+      const editor = this.editor;
+      if (!editor || editor.isDisposed) {
         return;
       }
       this._addBreakpointsToEditor();
     });
 
     this._debuggerService.model.breakpoints.restored.connect(async () => {
-      if (!this._editor || this._editor.isDisposed) {
+      const editor = this.editor;
+      if (!editor || editor.isDisposed) {
         return;
       }
       this._addBreakpointsToEditor();
     });
 
     this._debuggerService.model.callstack.currentFrameChanged.connect(() => {
-      EditorHandler.clearHighlight(this._editor);
+      const editor = this.editor;
+      if (editor) {
+        EditorHandler.clearHighlight(editor);
+      }
+    });
+
+    this._breakpointEffect = StateEffect.define<{ pos: number[] }>({
+      map: (value, mapping) => ({ pos: value.pos.map(v => mapping.mapPos(v)) })
+    });
+
+    this._breakpointState = StateField.define<RangeSet<GutterMarker>>({
+      create: () => {
+        return RangeSet.empty;
+      },
+      update: (breakpoints, transaction) => {
+        breakpoints = breakpoints.map(transaction.changes);
+        for (let ef of transaction.effects) {
+          if (ef.is(this._breakpointEffect)) {
+            let e = ef as StateEffect<{ pos: number[] }>;
+            if (e.value.pos.length) {
+              breakpoints = breakpoints.update({
+                add: e.value.pos.map(v => Private.breakpointMarker.range(v)),
+                sort: true
+              });
+            } else {
+              breakpoints = RangeSet.empty;
+            }
+          }
+        }
+        return breakpoints;
+      }
+    });
+
+    this._gutter = new Compartment();
+
+    this._highlightDeco = Decoration.line({ class: LINE_HIGHLIGHT_CLASS });
+
+    this._highlightState = StateField.define<DecorationSet>({
+      create: () => {
+        return Decoration.none;
+      },
+      update: (highlights, transaction) => {
+        highlights = highlights.map(transaction.changes);
+        for (let ef of transaction.effects) {
+          if (ef.is(EditorHandler._highlightEffect)) {
+            let e = ef as StateEffect<{ pos: number[] }>;
+            if (e.value.pos.length) {
+              highlights = highlights.update({
+                add: e.value.pos.map(v => this._highlightDeco.range(v))
+              });
+            } else {
+              highlights = Decoration.none;
+            }
+          }
+        }
+        return highlights;
+      },
+      provide: f => EditorView.decorations.from(f)
     });
 
-    this._setupEditor();
+    void options.editorReady().then(() => {
+      this._setupEditor();
+    });
   }
 
   /**
    * The editor
    */
-  get editor(): CodeEditor.IEditor {
-    return this._editor;
+  get editor(): CodeEditor.IEditor | null {
+    return this._editor();
   }
 
   /**
@@ -107,53 +184,69 @@ export class EditorHandler implements IDisposable {
    * Setup the editor.
    */
   private _setupEditor(): void {
-    if (!this._editor || this._editor.isDisposed) {
+    const editor = this.editor;
+    if (!editor || editor.isDisposed) {
       return;
     }
 
-    this._addBreakpointsToEditor();
-
-    const editor = this._editor as CodeMirrorEditor;
     editor.setOption('lineNumbers', true);
-    editor.editor.setOption('gutters', [
-      'CodeMirror-linenumbers',
-      'breakpoints'
-    ]);
-    editor.editor.on('gutterClick', this._onGutterClick);
+    const breakpointGutter = [
+      this._breakpointState,
+      this._highlightState,
+      Prec.highest(
+        gutter({
+          class: 'cm-breakpoint-gutter',
+          renderEmptyElements: true,
+          markers: v => v.state.field(this._breakpointState),
+          initialSpacer: () => Private.breakpointMarker,
+          domEventHandlers: {
+            mousedown: (view, line): boolean => {
+              this._onGutterClick(view, line.from);
+              return true;
+            }
+          }
+        })
+      )
+    ];
+    editor.injectExtension(this._gutter.of(breakpointGutter));
+
+    this._addBreakpointsToEditor();
   }
 
   /**
    * Clear the editor by removing visual elements and handlers.
    */
   private _clearEditor(): void {
-    if (!this._editor || this._editor.isDisposed) {
+    const editor = this.editor as CodeMirrorEditor | null;
+    if (!editor || editor.isDisposed) {
       return;
     }
-    const editor = this._editor as CodeMirrorEditor;
+
     EditorHandler.clearHighlight(editor);
-    EditorHandler.clearGutter(editor);
+    this._clearGutter(editor);
     editor.setOption('lineNumbers', false);
-    editor.editor.setOption('gutters', []);
-    editor.editor.off('gutterClick', this._onGutterClick);
+    editor.editor.dispatch({
+      effects: this._gutter.reconfigure([])
+    });
   }
 
   /**
    * Send the breakpoints from the editor UI via the debug service.
    */
   private _sendEditorBreakpoints(): void {
-    if (this._editor.isDisposed) {
+    if (this.editor?.isDisposed) {
       return;
     }
 
-    const breakpoints = this._getBreakpointsFromEditor().map(lineInfo => {
+    const breakpoints = this._getBreakpointsFromEditor().map(lineNumber => {
       return Private.createBreakpoint(
         this._debuggerService.session?.connection?.name || '',
-        lineInfo.line + 1
+        lineNumber
       );
     });
 
     void this._debuggerService.updateBreakpoints(
-      this._editor.model.value.text,
+      this._src.getSource(),
       breakpoints,
       this._path
     );
@@ -163,89 +256,110 @@ export class EditorHandler implements IDisposable {
    * Handle a click on the gutter.
    *
    * @param editor The editor from where the click originated.
-   * @param lineNumber The line corresponding to the click event.
+   * @param position The position corresponding to the click event.
    */
-  private _onGutterClick = (editor: Editor, lineNumber: number): void => {
-    const info = editor.lineInfo(lineNumber);
-    if (!info || this._id !== this._debuggerService.session?.connection?.id) {
+  private _onGutterClick(editor: EditorView, position: number): void {
+    if (this._id !== this._debuggerService.session?.connection?.id) {
       return;
     }
 
-    const remove = !!info.gutterMarkers;
+    const lineNumber = editor.state.doc.lineAt(position).number;
+    let stateBreakpoints = editor.state.field(this._breakpointState);
+    let hasBreakpoint = false;
+    stateBreakpoints.between(position, position, () => {
+      hasBreakpoint = true;
+    });
     let breakpoints: IDebugger.IBreakpoint[] = this._getBreakpoints();
-    if (remove) {
-      breakpoints = breakpoints.filter(ele => ele.line !== info.line + 1);
+    if (hasBreakpoint) {
+      breakpoints = breakpoints.filter(ele => ele.line !== lineNumber);
     } else {
       breakpoints.push(
         Private.createBreakpoint(
           this._path ?? this._debuggerService.session.connection.name,
-          info.line + 1
+          lineNumber
         )
       );
     }
 
+    breakpoints.sort((a, b) => {
+      return a.line! - b.line!;
+    });
+
     void this._debuggerService.updateBreakpoints(
-      this._editor.model.value.text,
+      this._src.getSource(),
       breakpoints,
       this._path
     );
-  };
+  }
 
   /**
    * Add the breakpoints to the editor.
    */
   private _addBreakpointsToEditor(): void {
-    const editor = this._editor as CodeMirrorEditor;
-    const breakpoints = this._getBreakpoints();
     if (this._id !== this._debuggerService.session?.connection?.id) {
       return;
     }
-    EditorHandler.clearGutter(editor);
-    breakpoints.forEach(breakpoint => {
-      if (typeof breakpoint.line === 'number') {
-        editor.editor.setGutterMarker(
-          breakpoint.line - 1,
-          'breakpoints',
-          Private.createMarkerNode()
-        );
-      }
+
+    const editor = this.editor as CodeMirrorEditor;
+    const breakpoints = this._getBreakpoints();
+
+    this._clearGutter(editor);
+    const breakpointPos = breakpoints.map(b => {
+      return editor.state.doc.line(b.line!).from;
+    });
+
+    editor.editor.dispatch({
+      effects: this._breakpointEffect.of({ pos: breakpointPos })
     });
   }
 
   /**
    * Retrieve the breakpoints from the editor.
    */
-  private _getBreakpointsFromEditor(): Private.ILineInfo[] {
-    const editor = this._editor as CodeMirrorEditor;
-    let lines = [];
-    for (let i = 0; i < editor.doc.lineCount(); i++) {
-      const info = editor.editor.lineInfo(i);
-      if (info.gutterMarkers) {
-        lines.push(info);
-      }
-    }
+  private _getBreakpointsFromEditor(): number[] {
+    const editor = this.editor as CodeMirrorEditor;
+    const breakpoints = editor.editor.state.field(this._breakpointState);
+    let lines: number[] = [];
+    breakpoints.between(0, editor.doc.length, (from: number) => {
+      lines.push(editor.doc.lineAt(from).number);
+    });
+
     return lines;
   }
 
+  private _clearGutter(editor: CodeEditor.IEditor): void {
+    if (!editor) {
+      return;
+    }
+
+    const view = (editor as CodeMirrorEditor).editor;
+    view.dispatch({
+      effects: this._breakpointEffect.of({ pos: [] })
+    });
+  }
+
   /**
    * Get the breakpoints for the editor using its content (code),
    * or its path (if it exists).
    */
   private _getBreakpoints(): IDebugger.IBreakpoint[] {
-    const code = this._editor.model.value.text;
+    const code = this._src.getSource();
     return this._debuggerService.model.breakpoints.getBreakpoints(
       this._path || this._debuggerService.getCodeId(code)
     );
   }
 
   private _id: string;
-  private _path: string;
-  private _editor: CodeEditor.IEditor;
   private _debuggerService: IDebugger;
-  private _editorMonitor: ActivityMonitor<
-    IObservableString,
-    IObservableString.IChangedArgs
-  >;
+  private _editor: () => CodeEditor.IEditor | null;
+  private _breakpointEffect: StateEffectType<{ pos: number[] }>;
+  private _breakpointState: StateField<RangeSet<GutterMarker>>;
+  private _gutter: Compartment;
+  private _highlightDeco: Decoration;
+  private _highlightState: StateField<DecorationSet>;
+  private _editorMonitor: ActivityMonitor<ISharedText, SourceChange>;
+  private _path: string;
+  private _src: ISharedText;
 }
 
 /**
@@ -262,16 +376,30 @@ export namespace EditorHandler {
     debuggerService: IDebugger;
 
     /**
-     * The code editor to handle.
+     * Promise resolving when the editor is ready.
      */
-    editor: CodeEditor.IEditor;
+    editorReady(): Promise<CodeEditor.IEditor>;
+
+    /**
+     * Get the code editor to handle.
+     */
+    getEditor(): CodeEditor.IEditor | null;
 
     /**
      * An optional path to a source file.
      */
     path?: string;
+
+    /**
+     * The code source to debug
+     */
+    src: ISharedText;
   }
 
+  export const _highlightEffect = StateEffect.define<{ pos: number[] }>({
+    map: (value, mapping) => ({ pos: value.pos.map(v => mapping.mapPos(v)) })
+  });
+
   /**
    * Highlight the current line of the frame in the given editor.
    *
@@ -284,8 +412,10 @@ export namespace EditorHandler {
   ): void {
     clearHighlight(editor);
     const cmEditor = editor as CodeMirrorEditor;
-    cmEditor.editor.addLineClass(line - 1, 'wrap', LINE_HIGHLIGHT_CLASS);
-    cmEditor.scrollIntoViewCentered({ ch: 0, line: line - 1 });
+    const linePos = cmEditor.doc.line(line).from;
+    cmEditor.editor.dispatch({
+      effects: _highlightEffect.of({ pos: [linePos] })
+    });
   }
 
   /**
@@ -298,25 +428,10 @@ export namespace EditorHandler {
       return;
     }
     const cmEditor = editor as CodeMirrorEditor;
-    cmEditor.editor.operation(() => {
-      cmEditor.doc.eachLine(line => {
-        cmEditor.editor.removeLineClass(line, 'wrap', LINE_HIGHLIGHT_CLASS);
-      });
+    cmEditor.editor.dispatch({
+      effects: _highlightEffect.of({ pos: [] })
     });
   }
-
-  /**
-   * Remove line numbers and all gutters from editor.
-   *
-   * @param editor The editor to cleanup.
-   */
-  export function clearGutter(editor: CodeEditor.IEditor): void {
-    if (!editor) {
-      return;
-    }
-    const cmEditor = editor as CodeMirrorEditor;
-    cmEditor.editor.clearGutter('breakpoints');
-  }
 }
 
 /**
@@ -326,12 +441,12 @@ namespace Private {
   /**
    * Create a marker DOM element for a breakpoint.
    */
-  export function createMarkerNode(): HTMLElement {
-    const marker = document.createElement('div');
-    marker.className = 'jp-DebuggerEditor-marker';
-    marker.innerHTML = '●';
-    return marker;
-  }
+  export const breakpointMarker = new (class extends GutterMarker {
+    toDOM() {
+      const marker = document.createTextNode('●');
+      return marker;
+    }
+  })();
 
   /**
    * Create a new breakpoint.
@@ -351,20 +466,4 @@ namespace Private {
       }
     };
   }
-
-  /**
-   * An interface for an editor line info.
-   */
-  export interface ILineInfo {
-    line: any;
-    handle: any;
-    text: string;
-    /** Object mapping gutter IDs to marker elements. */
-    gutterMarkers: any;
-    textClass: string;
-    bgClass: string;
-    wrapClass: string;
-    /** Array of line widgets attached to this line. */
-    widgets: any;
-  }
 }
diff --git a/packages/debugger/src/handlers/file.ts b/packages/debugger/src/handlers/file.ts
index d91a6959026a..0940458c4564 100644
--- a/packages/debugger/src/handlers/file.ts
+++ b/packages/debugger/src/handlers/file.ts
@@ -26,10 +26,15 @@ export class FileHandler implements IDisposable {
     this._debuggerService = options.debuggerService;
     this._fileEditor = options.widget.content;
 
-    this._hasLineNumber = this._fileEditor.editor.getOption('lineNumbers');
+    this._hasLineNumber =
+      (this._fileEditor.editor.getOption('lineNumbers') as
+        | boolean
+        | undefined) ?? false;
     this._editorHandler = new EditorHandler({
       debuggerService: this._debuggerService,
-      editor: this._fileEditor.editor
+      editorReady: () => Promise.resolve(this._fileEditor.editor),
+      getEditor: () => this._fileEditor.editor,
+      src: this._fileEditor.model.sharedModel
     });
   }
 
@@ -48,7 +53,7 @@ export class FileHandler implements IDisposable {
     this.isDisposed = true;
     this._editorHandler?.dispose();
     // Restore editor options
-    this._editorHandler?.editor.setOptions({
+    this._editorHandler?.editor!.setOptions({
       lineNumbers: this._hasLineNumber
     });
     Signal.clearData(this);
diff --git a/packages/debugger/src/handlers/notebook.ts b/packages/debugger/src/handlers/notebook.ts
index 311238c8928b..8fe678396303 100644
--- a/packages/debugger/src/handlers/notebook.ts
+++ b/packages/debugger/src/handlers/notebook.ts
@@ -2,22 +2,15 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Cell, CodeCell, ICellModel } from '@jupyterlab/cells';
-
+import { NotebookPanel } from '@jupyterlab/notebook';
 import {
   IObservableList,
   IObservableMap,
-  IObservableUndoableList,
   ObservableMap
 } from '@jupyterlab/observables';
-
-import { Notebook, NotebookPanel } from '@jupyterlab/notebook';
-
 import { IDisposable } from '@lumino/disposable';
-
 import { Signal } from '@lumino/signaling';
-
 import { IDebugger } from '../tokens';
-
 import { EditorHandler } from './editor';
 
 /**
@@ -35,8 +28,7 @@ export class NotebookHandler implements IDisposable {
     this._cellMap = new ObservableMap<EditorHandler>();
 
     const notebook = this._notebookPanel.content;
-    notebook.activeCellChanged.connect(this._onActiveCellChanged, this);
-    notebook.model?.cells.changed.connect(this._onCellsChanged, this);
+    notebook.model!.cells.changed.connect(this._onCellsChanged, this);
 
     this._onCellsChanged();
   }
@@ -57,7 +49,7 @@ export class NotebookHandler implements IDisposable {
     this._cellMap.values().forEach(handler => {
       handler.dispose();
       // Ensure to restore notebook editor settings
-      handler.editor.setOptions({
+      handler.editor?.setOptions({
         ...this._notebookPanel.content.editorConfig.code
       });
     });
@@ -69,7 +61,7 @@ export class NotebookHandler implements IDisposable {
    * Handle a notebook cells changed event.
    */
   private _onCellsChanged(
-    cells?: IObservableUndoableList<ICellModel>,
+    cells?: any,
     changes?: IObservableList.IChangedArgs<ICellModel>
   ): void {
     this._notebookPanel.content.widgets.forEach(cell =>
@@ -96,7 +88,12 @@ export class NotebookHandler implements IDisposable {
     const codeCell = cell as CodeCell;
     const editorHandler = new EditorHandler({
       debuggerService: this._debuggerService,
-      editor: codeCell.editor
+      editorReady: async () => {
+        await codeCell.ready;
+        return codeCell.editor!;
+      },
+      getEditor: () => codeCell.editor,
+      src: cell.model.sharedModel
     });
     codeCell.disposed.connect(() => {
       this._cellMap.delete(modelId);
@@ -105,19 +102,6 @@ export class NotebookHandler implements IDisposable {
     this._cellMap.set(cell.model.id, editorHandler);
   }
 
-  /**
-   * Handle a new active cell.
-   *
-   * @param notebook The notebook for which the active cell has changed.
-   * @param cell The new active cell.
-   */
-  private _onActiveCellChanged(notebook: Notebook, cell: Cell): void {
-    if (this._notebookPanel.content !== notebook) {
-      return;
-    }
-    this._addEditorHandler(cell);
-  }
-
   private _debuggerService: IDebugger;
   private _notebookPanel: NotebookPanel;
   private _cellMap: IObservableMap<EditorHandler>;
diff --git a/packages/debugger/src/icons.ts b/packages/debugger/src/icons.ts
index b3147465686c..f7d56dc38ab4 100644
--- a/packages/debugger/src/icons.ts
+++ b/packages/debugger/src/icons.ts
@@ -11,6 +11,7 @@ import variableSvgStr from '../style/icons/variable.svg';
 import pauseSvgStr from '../style/icons/pause.svg';
 import viewBreakpointSvgStr from '../style/icons/view-breakpoint.svg';
 import openKernelSourceSvgStr from '../style/icons/open-kernel-source.svg';
+import exceptionSvgStr from '../style/icons/exceptions.svg';
 
 export {
   runIcon as continueIcon,
@@ -22,6 +23,11 @@ export const closeAllIcon = new LabIcon({
   svgstr: closeAllSvgStr
 });
 
+export const exceptionIcon = new LabIcon({
+  name: 'debugger:pause-on-exception',
+  svgstr: exceptionSvgStr
+});
+
 export const pauseIcon = new LabIcon({
   name: 'debugger:pause',
   svgstr: pauseSvgStr
diff --git a/packages/debugger/src/model.ts b/packages/debugger/src/model.ts
index 7dd0ddef53c3..1725f4c373e2 100644
--- a/packages/debugger/src/model.ts
+++ b/packages/debugger/src/model.ts
@@ -53,7 +53,7 @@ export class DebuggerModel implements IDebugger.Model.IService {
   readonly sources: SourcesModel;
 
   /**
-   * The kernel sources model.
+   * The sources model.
    */
   readonly kernelSources: KernelSourcesModel;
 
@@ -74,6 +74,16 @@ export class DebuggerModel implements IDebugger.Model.IService {
     this._hasRichVariableRendering = v;
   }
 
+  /**
+   * Whether the kernel supports the copyToGlobals request.
+   */
+  get supportCopyToGlobals(): boolean {
+    return this._supportCopyToGlobals;
+  }
+  set supportCopyToGlobals(v: boolean) {
+    this._supportCopyToGlobals = v;
+  }
+
   /**
    * Whether the model is disposed.
    */
@@ -149,6 +159,7 @@ export class DebuggerModel implements IDebugger.Model.IService {
   private _disposed = new Signal<this, void>(this);
   private _isDisposed = false;
   private _hasRichVariableRendering = false;
+  private _supportCopyToGlobals = false;
   private _stoppedThreads = new Set<number>();
   private _title = '-';
   private _titleChanged = new Signal<this, string>(this);
diff --git a/packages/debugger/src/panels/breakpoints/body.tsx b/packages/debugger/src/panels/breakpoints/body.tsx
index 0fe3b08c849f..2595fce85d90 100644
--- a/packages/debugger/src/panels/breakpoints/body.tsx
+++ b/packages/debugger/src/panels/breakpoints/body.tsx
@@ -1,10 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ReactWidget } from '@jupyterlab/apputils';
-
+import { ReactWidget } from '@jupyterlab/ui-components';
 import React, { useEffect, useState } from 'react';
-
 import { IDebugger } from '../../tokens';
 
 /**
diff --git a/packages/debugger/src/panels/breakpoints/header.ts b/packages/debugger/src/panels/breakpoints/header.ts
deleted file mode 100644
index f7a0b11dbbc1..000000000000
--- a/packages/debugger/src/panels/breakpoints/header.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Toolbar } from '@jupyterlab/apputils';
-
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { PanelLayout, Widget } from '@lumino/widgets';
-
-/**
- * The header for a Breakpoints Panel.
- */
-export class BreakpointsHeader extends Widget {
-  /**
-   * Instantiate a new BreakpointsHeader.
-   */
-  constructor(translator?: ITranslator) {
-    super({ node: document.createElement('div') });
-    this.node.classList.add('jp-stack-panel-header');
-
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-
-    const title = new Widget({ node: document.createElement('h2') });
-    title.node.textContent = trans.__('Breakpoints');
-
-    const layout = new PanelLayout();
-    layout.addWidget(title);
-    layout.addWidget(this.toolbar);
-    this.layout = layout;
-  }
-
-  /**
-   * The toolbar for the breakpoints header.
-   */
-  readonly toolbar = new Toolbar();
-}
diff --git a/packages/debugger/src/panels/breakpoints/index.ts b/packages/debugger/src/panels/breakpoints/index.ts
index beabb6284fae..50dcdbbd1766 100644
--- a/packages/debugger/src/panels/breakpoints/index.ts
+++ b/packages/debugger/src/panels/breakpoints/index.ts
@@ -1,31 +1,21 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  CommandToolbarButton,
-  Dialog,
-  showDialog,
-  ToolbarButton
-} from '@jupyterlab/apputils';
-
+import { Dialog, showDialog } from '@jupyterlab/apputils';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { PanelWithToolbar, ToolbarButton } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { Signal } from '@lumino/signaling';
-
 import { Panel } from '@lumino/widgets';
-
-import { closeAllIcon } from '../../icons';
-
+import { closeAllIcon, exceptionIcon } from '../../icons';
 import { IDebugger } from '../../tokens';
-
 import { BreakpointsBody } from './body';
-
-import { BreakpointsHeader } from './header';
+import { PauseOnExceptionsWidget } from './pauseonexceptions';
 
 /**
  * A Panel to show a list of breakpoints.
  */
-export class Breakpoints extends Panel {
+export class Breakpoints extends PanelWithToolbar {
   /**
    * Instantiate a new Breakpoints Panel.
    *
@@ -34,23 +24,22 @@ export class Breakpoints extends Panel {
   constructor(options: Breakpoints.IOptions) {
     super(options);
     const { model, service, commands } = options;
-    const translator = options.translator || nullTranslator;
     const trans = (options.translator ?? nullTranslator).load('jupyterlab');
     this.title.label = trans.__('Breakpoints');
 
-    const header = new BreakpointsHeader(translator);
     const body = new BreakpointsBody(model);
 
-    header.toolbar.addItem(
-      'pause',
-      new CommandToolbarButton({
-        commands: commands.registry,
-        id: commands.pause,
-        label: ''
+    this.toolbar.addItem(
+      'pauseOnException',
+      new PauseOnExceptionsWidget({
+        service: service,
+        commands: commands,
+        icon: exceptionIcon,
+        tooltip: trans.__('Pause on exception filter')
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'closeAll',
       new ToolbarButton({
         icon: closeAllIcon,
@@ -63,7 +52,7 @@ export class Breakpoints extends Panel {
             body: trans.__('Are you sure you want to remove all breakpoints?'),
             buttons: [
               Dialog.okButton({ label: trans.__('Remove breakpoints') }),
-              Dialog.cancelButton({ label: trans.__('Cancel') })
+              Dialog.cancelButton()
             ],
             hasClose: true
           });
@@ -75,9 +64,7 @@ export class Breakpoints extends Panel {
       })
     );
 
-    this.addWidget(header);
     this.addWidget(body);
-
     this.addClass('jp-DebuggerBreakpoints');
   }
 
@@ -98,9 +85,9 @@ export namespace Breakpoints {
     registry: CommandRegistry;
 
     /**
-     * The pause command ID.
+     * The pause on exceptions command ID.
      */
-    pause: string;
+    pauseOnExceptions: string;
   }
   /**
    * Instantiation options for `Breakpoints`.
diff --git a/packages/debugger/src/panels/breakpoints/pauseonexceptions.tsx b/packages/debugger/src/panels/breakpoints/pauseonexceptions.tsx
new file mode 100644
index 000000000000..d68abab8216b
--- /dev/null
+++ b/packages/debugger/src/panels/breakpoints/pauseonexceptions.tsx
@@ -0,0 +1,141 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import * as React from 'react';
+import {
+  MenuSvg,
+  ToolbarButton,
+  ToolbarButtonComponent
+} from '@jupyterlab/ui-components';
+import { IDebugger } from '../../tokens';
+import { Breakpoints } from './index';
+
+const PAUSE_ON_EXCEPTION_CLASS = 'jp-debugger-pauseOnExceptions';
+const PAUSE_ON_EXCEPTION_BUTTON_CLASS = 'jp-PauseOnExceptions';
+const PAUSE_ON_EXCEPTION_MENU_CLASS = 'jp-PauseOnExceptions-menu';
+
+/**
+ * A button which display a menu on click, to select the filter.
+ */
+export class PauseOnExceptionsWidget extends ToolbarButton {
+  /**
+   * Constructor of the button.
+   */
+  constructor(props: PauseOnExceptions.IProps) {
+    super();
+    this._menu = new PauseOnExceptionsMenu({
+      service: props.service,
+      commands: {
+        registry: props.commands.registry,
+        pauseOnExceptions: props.commands.pauseOnExceptions
+      }
+    });
+
+    this.node.className = PAUSE_ON_EXCEPTION_CLASS;
+
+    this._props = props;
+    this._props.className = PAUSE_ON_EXCEPTION_BUTTON_CLASS;
+    this._props.service.eventMessage.connect((_, event): void => {
+      if (event.event === 'initialized' || event.event === 'terminated') {
+        this.onChange();
+      }
+    }, this);
+    this._props.enabled = this._props.service.pauseOnExceptionsIsValid();
+    this._props.service.pauseOnExceptionChanged.connect(this.onChange, this);
+  }
+
+  /**
+   * Called when the debugger is initialized or the filter changed.
+   */
+  onChange() {
+    const session = this._props.service.session;
+    const exceptionBreakpointFilters = session?.exceptionBreakpointFilters;
+    this._props.className = PAUSE_ON_EXCEPTION_BUTTON_CLASS;
+    if (this._props.service.session?.isStarted && exceptionBreakpointFilters) {
+      if (session.isPausingOnException()) {
+        this._props.className += ' lm-mod-toggled';
+      }
+      this._props.enabled = true;
+    } else {
+      this._props.enabled = false;
+    }
+    this.update();
+  }
+
+  /**
+   * open menu on click.
+   */
+  onclick = () => {
+    this._menu.open(
+      this.node.getBoundingClientRect().left,
+      this.node.getBoundingClientRect().bottom
+    );
+  };
+
+  render(): JSX.Element {
+    return <ToolbarButtonComponent {...this._props} onClick={this.onclick} />;
+  }
+
+  private _menu: PauseOnExceptionsMenu;
+  private _props: PauseOnExceptions.IProps;
+}
+
+/**
+ * A menu with all the available filter from the debugger as entries.
+ */
+export class PauseOnExceptionsMenu extends MenuSvg {
+  /**
+   * The constructor of the menu.
+   */
+  constructor(props: PauseOnExceptions.IProps) {
+    super({ commands: props.commands.registry });
+    this._service = props.service;
+    this._command = props.commands.pauseOnExceptions;
+
+    props.service.eventMessage.connect((_, event): void => {
+      if (event.event === 'initialized') {
+        this._build();
+      }
+    }, this);
+
+    this._build();
+    this.addClass(PAUSE_ON_EXCEPTION_MENU_CLASS);
+  }
+
+  private _build(): void {
+    this.clearItems();
+    const exceptionsBreakpointFilters =
+      this._service.session?.exceptionBreakpointFilters ?? [];
+    exceptionsBreakpointFilters.map((filter, _) => {
+      this.addItem({
+        command: this._command,
+        args: {
+          filter: filter.filter,
+          description: filter.description as string
+        }
+      });
+    });
+  }
+
+  private _service: IDebugger;
+  private _command: string;
+}
+
+/**
+ * A namespace for the widget.
+ */
+export namespace PauseOnExceptions {
+  /**
+   * The properties of the widget and menu.
+   */
+  export interface IProps extends ToolbarButtonComponent.IProps {
+    /**
+     * The debugger service linked to the widget.
+     */
+    service: IDebugger;
+    /**
+     * The commands registry and the command ID associated to the menu.
+     */
+    commands: Breakpoints.ICommands;
+  }
+}
diff --git a/packages/debugger/src/panels/callstack/body.tsx b/packages/debugger/src/panels/callstack/body.tsx
index ca3609d65a5a..7ab6091643ae 100644
--- a/packages/debugger/src/panels/callstack/body.tsx
+++ b/packages/debugger/src/panels/callstack/body.tsx
@@ -1,12 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ReactWidget } from '@jupyterlab/apputils';
-
-import React, { useEffect, useState } from 'react';
-
 import { PathExt } from '@jupyterlab/coreutils';
-
+import { ReactWidget } from '@jupyterlab/ui-components';
+import React, { useEffect, useState } from 'react';
 import { IDebugger } from '../../tokens';
 
 /**
diff --git a/packages/debugger/src/panels/callstack/header.ts b/packages/debugger/src/panels/callstack/header.ts
deleted file mode 100644
index 5b73a076c4f1..000000000000
--- a/packages/debugger/src/panels/callstack/header.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Toolbar } from '@jupyterlab/apputils';
-
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { PanelLayout, Widget } from '@lumino/widgets';
-
-/**
- * The header for a Callstack Panel.
- */
-export class CallstackHeader extends Widget {
-  /**
-   * Instantiate a new CallstackHeader.
-   */
-  constructor(translator?: ITranslator) {
-    super({ node: document.createElement('div') });
-    this.node.classList.add('jp-stack-panel-header');
-
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-
-    const title = new Widget({ node: document.createElement('h2') });
-    title.node.textContent = trans.__('Callstack');
-
-    const layout = new PanelLayout();
-    layout.addWidget(title);
-    layout.addWidget(this.toolbar);
-    this.layout = layout;
-  }
-
-  /**
-   * The toolbar for the callstack header.
-   */
-  readonly toolbar = new Toolbar();
-}
diff --git a/packages/debugger/src/panels/callstack/index.ts b/packages/debugger/src/panels/callstack/index.ts
index 110c5382a75d..ce14fb4b86d4 100644
--- a/packages/debugger/src/panels/callstack/index.ts
+++ b/packages/debugger/src/panels/callstack/index.ts
@@ -1,87 +1,87 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CommandToolbarButton } from '@jupyterlab/apputils';
-
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
+import {
+  CommandToolbarButton,
+  PanelWithToolbar
+} from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
-
 import { Panel } from '@lumino/widgets';
-
-import { CallstackBody } from './body';
-
-import { CallstackHeader } from './header';
-
 import { IDebugger } from '../../tokens';
+import { CallstackBody } from './body';
 
 /**
  * A Panel to show a callstack.
  */
-export class Callstack extends Panel {
+export class Callstack extends PanelWithToolbar {
   /**
    * Instantiate a new Callstack Panel.
    *
    * @param options The instantiation options for a Callstack Panel.
    */
   constructor(options: Callstack.IOptions) {
-    super();
+    super(options);
     const { commands, model } = options;
-    const translator = options.translator || nullTranslator;
-    const header = new CallstackHeader(translator);
+    const trans = (options.translator ?? nullTranslator).load('jupyterlab');
+    this.title.label = trans.__('Callstack');
     const body = new CallstackBody(model);
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'continue',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.continue
+        id: commands.continue,
+        label: ''
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'terminate',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.terminate
+        id: commands.terminate,
+        label: ''
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'step-over',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.next
+        id: commands.next,
+        label: ''
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'step-in',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.stepIn
+        id: commands.stepIn,
+        label: ''
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'step-out',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.stepOut
+        id: commands.stepOut,
+        label: ''
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'evaluate',
       new CommandToolbarButton({
         commands: commands.registry,
-        id: commands.evaluate
+        id: commands.evaluate,
+        label: ''
       })
     );
 
-    this.addWidget(header);
     this.addWidget(body);
-
     this.addClass('jp-DebuggerCallstack');
   }
 }
diff --git a/packages/debugger/src/panels/kernelSources/body.tsx b/packages/debugger/src/panels/kernelSources/body.tsx
index 0b27606321ef..1c069bafdf9d 100644
--- a/packages/debugger/src/panels/kernelSources/body.tsx
+++ b/packages/debugger/src/panels/kernelSources/body.tsx
@@ -1,22 +1,22 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ReactWidget,
-  showErrorMessage,
-  ToolbarButtonComponent,
-  UseSignal
-} from '@jupyterlab/apputils';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
 import React from 'react';
+
 import { openKernelSourceIcon } from '../../icons';
-import { IDebugger } from '../../tokens';
+
+import { ReactWidget, ToolbarButtonComponent } from '@jupyterlab/ui-components';
+
+import { showErrorMessage } from '@jupyterlab/apputils';
+
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+
 import { KernelSourcesFilter } from './filter';
 
+import { IDebugger } from '../../tokens';
+import { UseSignal } from '@jupyterlab/ui-components';
+import { IRenderMime } from '@jupyterlab/rendermime';
+
 /**
  * The class name added to the filterbox node.
  */
@@ -45,7 +45,7 @@ export class KernelSourcesBody extends ReactWidget {
     this.addClass('jp-DebuggerKernelSources-body');
   }
 
-  render(): JSX.Element {
+  render() {
     let filterClass = FILTERBOX_CLASS;
     if (!this._showFilter) {
       filterClass += ' ' + FILTERBOX_HIDDEN_CLASS;
@@ -109,7 +109,7 @@ export class KernelSourcesBody extends ReactWidget {
 
   private _model: IDebugger.Model.IKernelSources;
   private _debuggerService: IDebugger;
-  private _trans: TranslationBundle;
+  private _trans: IRenderMime.TranslationBundle;
   private _showFilter = false;
 }
 
diff --git a/packages/debugger/src/panels/kernelSources/filter.tsx b/packages/debugger/src/panels/kernelSources/filter.tsx
index 4a34d7d4e981..3dd24991d051 100644
--- a/packages/debugger/src/panels/kernelSources/filter.tsx
+++ b/packages/debugger/src/panels/kernelSources/filter.tsx
@@ -1,9 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { UseSignal } from '@jupyterlab/apputils';
-
-import { InputGroup } from '@jupyterlab/ui-components';
+import { InputGroup, UseSignal } from '@jupyterlab/ui-components';
 
 import React from 'react';
 
@@ -34,7 +32,7 @@ const FilterBox = (props: IFilterBoxProps) => {
 /**
  * A widget which hosts a input textbox to filter on file names.
  */
-export const KernelSourcesFilter = (props: IFilterBoxProps): JSX.Element => {
+export const KernelSourcesFilter = (props: IFilterBoxProps) => {
   return (
     <UseSignal
       signal={props.model.filterChanged}
diff --git a/packages/debugger/src/panels/kernelSources/index.tsx b/packages/debugger/src/panels/kernelSources/index.tsx
index b56b456cc0bd..c4fc4ec6e151 100644
--- a/packages/debugger/src/panels/kernelSources/index.tsx
+++ b/packages/debugger/src/panels/kernelSources/index.tsx
@@ -5,22 +5,21 @@ import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
 import { showErrorMessage } from '@jupyterlab/apputils';
 
-import { ToolbarButton } from '@jupyterlab/apputils';
-
-import { refreshIcon, searchIcon } from '@jupyterlab/ui-components';
-
-import { Panel } from '@lumino/widgets';
+import {
+  PanelWithToolbar,
+  refreshIcon,
+  searchIcon,
+  ToolbarButton
+} from '@jupyterlab/ui-components';
 
 import { IDebugger } from '../../tokens';
 
 import { KernelSourcesBody } from './body';
 
-import { KernelSourcesHeader } from './header';
-
 /**
  * A Panel that shows a preview of the source code while debugging.
  */
-export class KernelSources extends Panel {
+export class KernelSources extends PanelWithToolbar {
   /**
    * Instantiate a new Sources preview Panel.
    *
@@ -32,10 +31,7 @@ export class KernelSources extends Panel {
     this._model = model;
     const trans = (options.translator ?? nullTranslator).load('jupyterlab');
     this.title.label = trans.__('Kernel Sources');
-
-    const header = new KernelSourcesHeader(model, options.translator);
-
-    header.addClass('jp-DebuggerKernelSources-header');
+    this.toolbar.addClass('jp-DebuggerKernelSources-header');
 
     this._body = new KernelSourcesBody({
       service,
@@ -43,7 +39,7 @@ export class KernelSources extends Panel {
       translator: options.translator
     });
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'open-filter',
       new ToolbarButton({
         icon: searchIcon,
@@ -54,7 +50,7 @@ export class KernelSources extends Panel {
       })
     );
 
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'refresh',
       new ToolbarButton({
         icon: refreshIcon,
@@ -72,10 +68,8 @@ export class KernelSources extends Panel {
     );
 
     this.addClass('jp-DebuggerKernelSources-header');
-    this.addClass('jp-DebuggerKernelSources');
-
-    this.addWidget(header);
     this.addWidget(this._body);
+    this.addClass('jp-DebuggerKenelSources');
   }
 
   public set filter(filter: string) {
diff --git a/packages/debugger/src/panels/sources/body.ts b/packages/debugger/src/panels/sources/body.ts
index cf67d5201128..93f905cae9b8 100644
--- a/packages/debugger/src/panels/sources/body.ts
+++ b/packages/debugger/src/panels/sources/body.ts
@@ -104,13 +104,15 @@ export class SourcesBody extends Widget {
     const editorMimeType =
       mimeType || this._mimeTypeService.getMimeTypeByFilePath(path ?? '');
 
-    this._editor.model.value.text = content;
+    this._editor.model.sharedModel.setSource(content);
     this._editor.model.mimeType = editorMimeType;
 
     this._editorHandler = new EditorHandler({
       debuggerService: this._debuggerService,
-      editor: this._editor.editor,
-      path
+      editorReady: () => Promise.resolve(this._editor.editor),
+      getEditor: () => this._editor.editor,
+      path,
+      src: this._editor.model.sharedModel
     });
 
     this._model.currentSource = {
diff --git a/packages/debugger/src/panels/sources/header.tsx b/packages/debugger/src/panels/sources/header.tsx
deleted file mode 100644
index 53b2f5a249cd..000000000000
--- a/packages/debugger/src/panels/sources/header.tsx
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ReactWidget, Toolbar, UseSignal } from '@jupyterlab/apputils';
-
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { PanelLayout, Widget } from '@lumino/widgets';
-
-import { IDebugger } from '../../tokens';
-
-import React from 'react';
-
-/**
- * The header for a Source Panel.
- */
-export class SourcesHeader extends Widget {
-  /**
-   * Instantiate a new SourcesHeader.
-   *
-   * @param model The model for the Sources.
-   */
-  constructor(model: IDebugger.Model.ISources, translator?: ITranslator) {
-    super({ node: document.createElement('div') });
-    this.node.classList.add('jp-stack-panel-header');
-
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-
-    const layout = new PanelLayout();
-    this.layout = layout;
-
-    const title = new Widget({ node: document.createElement('h2') });
-    title.node.textContent = trans.__('Source');
-
-    const sourcePath = ReactWidget.create(
-      <SourcePathComponent model={model} />
-    );
-
-    layout.addWidget(title);
-    layout.addWidget(this.toolbar);
-    layout.addWidget(sourcePath);
-
-    this.addClass('jp-DebuggerSources-header');
-  }
-
-  /**
-   * The toolbar for the sources header.
-   */
-  readonly toolbar = new Toolbar();
-}
-
-/**
- * A React component to display the path to a source.
- *
- * @param {object} props The component props.
- * @param props.model The model for the sources.
- */
-const SourcePathComponent = ({
-  model
-}: {
-  model: IDebugger.Model.ISources;
-}): JSX.Element => {
-  return (
-    <UseSignal signal={model.currentSourceChanged} initialSender={model}>
-      {(model): JSX.Element => (
-        <span onClick={(): void => model?.open()}>
-          {model?.currentSource?.path ?? ''}
-        </span>
-      )}
-    </UseSignal>
-  );
-};
diff --git a/packages/debugger/src/panels/sources/index.ts b/packages/debugger/src/panels/sources/index.tsx
similarity index 70%
rename from packages/debugger/src/panels/sources/index.ts
rename to packages/debugger/src/panels/sources/index.tsx
index 05038b1e69ff..a9f4261a5daa 100644
--- a/packages/debugger/src/panels/sources/index.ts
+++ b/packages/debugger/src/panels/sources/index.tsx
@@ -3,26 +3,20 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ToolbarButton } from '@jupyterlab/apputils';
-
 import { IEditorServices } from '@jupyterlab/codeeditor';
-
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { Panel } from '@lumino/widgets';
-
+import { PanelWithToolbar, ToolbarButton } from '@jupyterlab/ui-components';
 import { viewBreakpointIcon } from '../../icons';
-
 import { IDebugger } from '../../tokens';
-
+import { SourcePathComponent } from './sourcepath';
 import { SourcesBody } from './body';
-
-import { SourcesHeader } from './header';
+import { ReactWidget } from '@jupyterlab/ui-components';
+import React from 'react';
 
 /**
  * A Panel that shows a preview of the source code while debugging.
  */
-export class Sources extends Panel {
+export class Sources extends PanelWithToolbar {
   /**
    * Instantiate a new Sources preview Panel.
    *
@@ -31,16 +25,16 @@ export class Sources extends Panel {
   constructor(options: Sources.IOptions) {
     super();
     const { model, service, editorServices } = options;
-    const translator = options.translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
+    const trans = (options.translator ?? nullTranslator).load('jupyterlab');
+    this.title.label = trans.__('Source');
 
-    const header = new SourcesHeader(model, translator);
+    this.toolbar.addClass('jp-DebuggerSources-header');
     const body = new SourcesBody({
       service,
       model,
       editorServices
     });
-    header.toolbar.addItem(
+    this.toolbar.addItem(
       'open',
       new ToolbarButton({
         icon: viewBreakpointIcon,
@@ -48,8 +42,15 @@ export class Sources extends Panel {
         tooltip: trans.__('Open in the Main Area')
       })
     );
-    this.addWidget(header);
+    const sourcePath = ReactWidget.create(
+      <SourcePathComponent model={model} />
+    );
+
+    this.toolbar.addItem('sourcePath', sourcePath);
+    this.addClass('jp-DebuggerSources-header');
+
     this.addWidget(body);
+    this.addClass('jp-DebuggerSources');
   }
 }
 
diff --git a/packages/debugger/src/panels/sources/sourcepath.tsx b/packages/debugger/src/panels/sources/sourcepath.tsx
new file mode 100644
index 000000000000..5f19f1540347
--- /dev/null
+++ b/packages/debugger/src/panels/sources/sourcepath.tsx
@@ -0,0 +1,31 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { UseSignal } from '@jupyterlab/ui-components';
+import React from 'react';
+import { IDebugger } from '../../tokens';
+
+/**
+ * A React component to display the path to a source.
+ *
+ * @param {object} props The component props.
+ * @param props.model The model for the sources.
+ */
+export const SourcePathComponent = ({
+  model
+}: {
+  model: IDebugger.Model.ISources;
+}): JSX.Element => {
+  return (
+    <UseSignal signal={model.currentSourceChanged} initialSender={model}>
+      {(model): JSX.Element => (
+        <span
+          onClick={(): void => model?.open()}
+          className="jp-DebuggerSources-header-path"
+        >
+          {model?.currentSource?.path ?? ''}
+        </span>
+      )}
+    </UseSignal>
+  );
+};
diff --git a/packages/debugger/src/panels/variables/grid.ts b/packages/debugger/src/panels/variables/grid.ts
index 846f5f0bd5ad..f98a7472d4e8 100644
--- a/packages/debugger/src/panels/variables/grid.ts
+++ b/packages/debugger/src/panels/variables/grid.ts
@@ -3,26 +3,17 @@
 
 import { IThemeManager } from '@jupyterlab/apputils';
 
-import { CommandRegistry } from '@lumino/commands';
+import { ITranslator } from '@jupyterlab/translation';
 
-import {
-  BasicKeyHandler,
-  BasicMouseHandler,
-  BasicSelectionModel,
-  DataGrid,
-  DataModel,
-  TextRenderer
-} from '@lumino/datagrid';
+import { CommandRegistry } from '@lumino/commands';
 
-import { ISignal, Signal } from '@lumino/signaling';
+import { Message } from '@lumino/messaging';
 
 import { Panel } from '@lumino/widgets';
 
-import { Debugger } from '../../';
-
 import { IDebugger } from '../../tokens';
 
-import { VariablesModel } from './model';
+import type * as GridPanelModule from './gridpanel';
 
 /**
  * A data grid that displays variables in a debugger session.
@@ -35,490 +26,125 @@ export class VariablesBodyGrid extends Panel {
    */
   constructor(options: VariablesBodyGrid.IOptions) {
     super();
-    const { model, commands, themeManager, scopes } = options;
-    this._grid = new Grid({ commands, model, themeManager });
-    this._grid.addClass('jp-DebuggerVariables-grid');
-    this._model = model;
-    this._model.changed.connect((model: VariablesModel): void => {
-      this._update();
-    }, this);
-    this._grid.dataModel.setData(scopes ?? []);
-    this.addWidget(this._grid);
+    this.commands = options.commands;
+    this.model = options.model;
+    this.themeManager = options.themeManager;
+    this.translator = options.translator;
+    this.model.changed.connect(() => this.update(), this);
     this.addClass('jp-DebuggerVariables-body');
   }
 
   /**
-   * Set the variable filter list.
-   *
-   * @param filter The variable filter to apply.
-   */
-  set filter(filter: Set<string>) {
-    (this._grid.dataModel as GridModel).filter = filter;
-    this._update();
-  }
-
-  /**
-   * Set the current scope.
-   *
-   * @param scope The current scope for the variables.
-   */
-  set scope(scope: string) {
-    (this._grid.dataModel as GridModel).scope = scope;
-    this._update();
-  }
-
-  /**
-   * Update the underlying data model
-   */
-  private _update(): void {
-    this._grid.dataModel.setData(this._model.scopes ?? []);
-  }
-
-  private _grid: Grid;
-  private _model: IDebugger.Model.IVariables;
-}
-
-/**
- * A namespace for `VariablesBodyGrid` statics.
- */
-export namespace VariablesBodyGrid {
-  /**
-   * Instantiation options for `VariablesBodyGrid`.
-   */
-  export interface IOptions {
-    /**
-     * The variables model.
-     */
-    model: IDebugger.Model.IVariables;
-
-    /**
-     * The commands registry.
-     */
-    commands: CommandRegistry;
-
-    /**
-     * The optional initial scopes data.
-     */
-    scopes?: IDebugger.IScope[];
-
-    /**
-     * An optional application theme manager to detect theme changes.
-     */
-    themeManager?: IThemeManager | null;
-  }
-}
-
-/**
- * A class wrapping the underlying variables datagrid.
- */
-class Grid extends Panel {
-  /**
-   * Instantiate a new VariablesGrid.
-   *
-   * @param options The instantiation options for a VariablesGrid.
-   */
-  constructor(options: Grid.IOptions) {
-    super();
-    const { commands, model, themeManager } = options;
-    this.model = model;
-    const dataModel = new GridModel();
-    const grid = new DataGrid();
-    const mouseHandler = new Private.MouseHandler();
-    mouseHandler.doubleClicked.connect((_, hit) =>
-      commands.execute(Debugger.CommandIDs.inspectVariable, {
-        variableReference: dataModel.getVariableReference(hit.row),
-        name: dataModel.getVariableName(hit.row)
-      })
-    );
-    mouseHandler.selected.connect((_, hit) => {
-      const { row } = hit;
-      this.model.selectedVariable = {
-        name: dataModel.getVariableName(row),
-        value: dataModel.data('body', row, 1),
-        type: dataModel.data('body', row, 2),
-        variablesReference: dataModel.getVariableReference(row)
-      };
-    });
-    grid.dataModel = dataModel;
-    grid.keyHandler = new BasicKeyHandler();
-    grid.mouseHandler = mouseHandler;
-    grid.selectionModel = new BasicSelectionModel({
-      dataModel
-    });
-    grid.stretchLastColumn = true;
-    grid.node.style.height = '100%';
-    this._grid = grid;
-
-    // Compute the grid's styles based on the current theme.
-    if (themeManager) {
-      themeManager.themeChanged.connect(this._updateStyles, this);
-    }
-    this.addWidget(grid);
-  }
-
-  /**
-   * Set the variable filter list.
-   *
-   * @param filter The variable filter to apply.
-   */
-  set filter(filter: Set<string>) {
-    (this._grid.dataModel as GridModel).filter = filter;
-    this.update();
-  }
-
-  /**
-   * Set the scope for the variables data model.
-   *
-   * @param scope The scopes for the variables
-   */
-  set scope(scope: string) {
-    (this._grid.dataModel as GridModel).scope = scope;
-    this.update();
-  }
-
-  /**
-   * Get the data model for the data grid.
-   */
-  get dataModel(): GridModel {
-    return this._grid.dataModel as GridModel;
-  }
-
-  /**
-   * Handle `after-attach` messages.
-   *
-   * @param message - The `after-attach` message.
-   */
-  protected onAfterAttach(message: any): void {
-    super.onAfterAttach(message);
-    this._updateStyles();
-  }
-
-  /**
-   * Update the computed style for the data grid on theme change.
-   */
-  private _updateStyles(): void {
-    const { style, textRenderer } = Private.computeStyle();
-    this._grid.cellRenderers.update({}, textRenderer);
-    this._grid.style = style;
-  }
-
-  private _grid: DataGrid;
-  protected model: IDebugger.Model.IVariables;
-}
-
-/**
- * A namespace for VariablesGrid `statics`.
- */
-namespace Grid {
-  /**
-   * Instantiation options for `VariablesGrid`.
+   * The variable filter list.
    */
-  export interface IOptions {
-    /**
-     * The commands registry.
-     */
-    commands: CommandRegistry;
-
-    /**
-     * The variables model.
-     */
-    model: IDebugger.Model.IVariables;
-
-    /**
-     * An optional application theme manager to detect theme changes.
-     */
-    themeManager?: IThemeManager | null;
+  get filter(): Set<string> {
+    return this._filter;
   }
-}
-
-/**
- * A data grid model for variables.
- */
-class GridModel extends DataModel {
-  /**
-   * Set the variable filter list.
-   */
   set filter(filter: Set<string>) {
     this._filter = filter;
+    this.update();
   }
 
   /**
-   * Get the current scope for the variables.
+   * The current scope of the variables.
    */
   get scope(): string {
     return this._scope;
   }
-
-  /**
-   * Set the variable scope
-   */
   set scope(scope: string) {
     this._scope = scope;
+    if (scope !== 'Globals') {
+      this.addClass('jp-debuggerVariables-local');
+    } else {
+      this.removeClass('jp-debuggerVariables-local');
+    }
+    this.update();
   }
 
-  /**
-   * Get the row count for a particular region in the data grid.
-   *
-   * @param region The datagrid region.
-   */
-  rowCount(region: DataModel.RowRegion): number {
-    return region === 'body' ? this._data.name.length : 1;
-  }
-
-  /**
-   * Get the column count for a particular region in the data grid.
-   *
-   * @param region The datagrid region.
-   */
-  columnCount(region: DataModel.ColumnRegion): number {
-    return region === 'body' ? 2 : 1;
-  }
+  protected commands: CommandRegistry;
+  protected model: IDebugger.Model.IVariables;
+  protected themeManager: IThemeManager | null | undefined;
+  protected translator: ITranslator | undefined;
 
   /**
-   * Get the data count for a particular region, row and column in the data grid.
-   *
-   * @param region The datagrid region.
-   * @param row The datagrid row
-   * @param column The datagrid column
+   * Load the grid panel implementation and instantiate a grid.
    */
-  data(region: DataModel.CellRegion, row: number, column: number): any {
-    if (region === 'row-header') {
-      return this._data.name[row];
-    }
-
-    if (region === 'column-header') {
-      return column === 1 ? 'Value' : 'Type';
-    }
-    if (region === 'corner-header') {
-      return 'Name';
+  protected async initialize(): Promise<void> {
+    if (this._grid || this._pending) {
+      return;
     }
 
-    return column === 1 ? this._data.value[row] : this._data.type[row];
-  }
-
-  /**
-   * Get the variable reference for a given row
-   *
-   * @param row The row in the datagrid.
-   */
-  getVariableReference(row: number): number {
-    return this._data.variablesReference[row];
-  }
+    // Lazily load the datagrid module when the first grid is requested.
+    const { Grid } = await (this._pending = import('./gridpanel'));
+    const { commands, model, themeManager, translator } = this;
 
-  /**
-   * Get the variable name for a given row
-   *
-   * @param row The row in the datagrid.
-   */
-  getVariableName(row: number): string {
-    return this._data.name[row];
+    this._grid = new Grid({ commands, model, themeManager, translator });
+    this._grid.addClass('jp-DebuggerVariables-grid');
+    this._pending = null;
+    this.addWidget(this._grid);
+    this.update();
   }
 
   /**
-   * Set the datagrid model data from the list of variables.
-   *
-   * @param variables The list of variables.
+   * Wait until actually displaying the grid to trigger initialization.
    */
-  setData(scopes: IDebugger.IScope[]): void {
-    this._clearData();
-    this.emitChanged({
-      type: 'model-reset',
-      region: 'body'
-    });
-    const scope = scopes.find(scope => scope.name === this._scope) ?? scopes[0];
-    const variables = scope?.variables ?? [];
-    const filtered = variables.filter(
-      variable => variable.name && !this._filter.has(variable.name)
-    );
-    filtered.forEach((variable, index) => {
-      this._data.name[index] = variable.name;
-      this._data.type[index] = variable.type ?? '';
-      this._data.value[index] = variable.value;
-      this._data.variablesReference[index] = variable.variablesReference;
-    });
-    this.emitChanged({
-      type: 'rows-inserted',
-      region: 'body',
-      index: 1,
-      span: filtered.length
-    });
+  protected onBeforeShow(msg: Message): void {
+    if (!this._grid && !this._pending) {
+      void this.initialize();
+    }
+    super.onBeforeShow(msg);
   }
 
   /**
-   * Clear all the data in the datagrid.
+   * Handle `update-request` messages.
    */
-  private _clearData(): void {
-    this._data = {
-      name: [],
-      type: [],
-      value: [],
-      variablesReference: []
-    };
+  protected onUpdateRequest(msg: Message): void {
+    if (this._grid) {
+      const { dataModel } = this._grid;
+      dataModel.filter = this._filter;
+      dataModel.scope = this._scope;
+      dataModel.setData(this.model.scopes ?? []);
+    }
+    super.onUpdateRequest(msg);
   }
 
-  private _filter = new Set<string>();
-  private _scope = '';
-  private _data: {
-    name: string[];
-    type: string[];
-    value: string[];
-    variablesReference: number[];
-  } = {
-    name: [],
-    type: [],
-    value: [],
-    variablesReference: []
-  };
+  private _filter: Set<string> = new Set();
+  private _grid: GridPanelModule.Grid | null = null;
+  private _pending: Promise<unknown> | null = null;
+  private _scope: string;
 }
 
 /**
- * A namespace for private data.
+ * A namespace for `VariablesBodyGrid` statics.
  */
-namespace Private {
-  /**
-   * Create a color palette element.
-   */
-  function createPalette(): HTMLDivElement {
-    const div = document.createElement('div');
-    div.className = 'jp-DebuggerVariables-colorPalette';
-    div.innerHTML = `
-      <div class="jp-mod-void"></div>
-      <div class="jp-mod-background"></div>
-      <div class="jp-mod-header-background"></div>
-      <div class="jp-mod-grid-line"></div>
-      <div class="jp-mod-header-grid-line"></div>
-      <div class="jp-mod-selection"></div>
-      <div class="jp-mod-text"></div>
-    `;
-    return div;
-  }
-
-  /**
-   * Compute the style and renderer for a data grid.
-   */
-  export function computeStyle(): {
-    style: DataGrid.Style;
-    textRenderer: TextRenderer;
-  } {
-    const palette = createPalette();
-    document.body.appendChild(palette);
-    let node: HTMLDivElement | null;
-    node = palette.querySelector('.jp-mod-void');
-    const voidColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-background');
-    const backgroundColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-header-background');
-    const headerBackgroundColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-grid-line');
-    const gridLineColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-header-grid-line');
-    const headerGridLineColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-selection');
-    const selectionFillColor = getComputedStyle(node!).color;
-    node = palette.querySelector('.jp-mod-text');
-    const textColor = getComputedStyle(node!).color;
-    document.body.removeChild(palette);
-    return {
-      style: {
-        voidColor,
-        backgroundColor,
-        headerBackgroundColor,
-        gridLineColor,
-        headerGridLineColor,
-        rowBackgroundColor: (i: number): string =>
-          i % 2 === 0 ? voidColor : backgroundColor,
-        selectionFillColor
-      },
-      textRenderer: new TextRenderer({
-        font: '12px sans-serif',
-        textColor,
-        backgroundColor: '',
-        verticalAlignment: 'center',
-        horizontalAlignment: 'left'
-      })
-    };
-  }
-
+export namespace VariablesBodyGrid {
   /**
-   * A custom click handler to handle clicks on the variables grid.
+   * Instantiation options for `VariablesBodyGrid`.
    */
-  export class MouseHandler extends BasicMouseHandler {
-    /**
-     * A signal emitted when the variables grid is double clicked.
-     */
-    get doubleClicked(): ISignal<this, DataGrid.HitTestResult> {
-      return this._doubleClicked;
-    }
-
+  export interface IOptions {
     /**
-     * A signal emitted when the variables grid received mouse down or context menu event.
+     * The variables model.
      */
-    get selected(): ISignal<this, DataGrid.HitTestResult> {
-      return this._selected;
-    }
+    model: IDebugger.Model.IVariables;
 
     /**
-     * Dispose of the resources held by the mouse handler.
+     * The commands registry.
      */
-    dispose(): void {
-      if (this.isDisposed) {
-        return;
-      }
-
-      Signal.disconnectSender(this);
-
-      super.dispose();
-    }
+    commands: CommandRegistry;
 
     /**
-     * Handle a mouse double-click event.
-     *
-     * @param grid The datagrid clicked.
-     * @param event The mouse event.
+     * The optional initial scopes data.
      */
-    onMouseDoubleClick(grid: DataGrid, event: MouseEvent): void {
-      const hit = grid.hitTest(event.clientX, event.clientY);
-      this._doubleClicked.emit(hit);
-    }
+    scopes?: IDebugger.IScope[];
 
     /**
-     * Handle the mouse down event for the data grid.
-     *
-     * @param grid - The data grid of interest.
-     *
-     * @param event - The mouse down event of interest.
+     * An optional application theme manager to detect theme changes.
      */
-    onMouseDown(grid: DataGrid, event: MouseEvent): void {
-      // Unpack the event.
-      let { clientX, clientY } = event;
-
-      // Hit test the grid.
-      let hit = grid.hitTest(clientX, clientY);
-
-      this._selected.emit(hit);
-
-      // Propagate event to Lumino DataGrid BasicMouseHandler.
-      super.onMouseDown(grid, event);
-    }
+    themeManager?: IThemeManager | null;
 
     /**
-     * Handle the context menu event for the data grid.
-     *
-     * @param grid - The data grid of interest.
-     *
-     * @param event - The context menu event of interest.
+     * The application language translator.
      */
-    onContextMenu(grid: DataGrid, event: MouseEvent): void {
-      // Unpack the event.
-      let { clientX, clientY } = event;
-
-      // Hit test the grid.
-      let hit = grid.hitTest(clientX, clientY);
-
-      this._selected.emit(hit);
-    }
-
-    private _doubleClicked = new Signal<this, DataGrid.HitTestResult>(this);
-    private _selected = new Signal<this, DataGrid.HitTestResult>(this);
+    translator?: ITranslator;
   }
 }
diff --git a/packages/debugger/src/panels/variables/gridpanel.ts b/packages/debugger/src/panels/variables/gridpanel.ts
new file mode 100644
index 000000000000..68b456385d67
--- /dev/null
+++ b/packages/debugger/src/panels/variables/gridpanel.ts
@@ -0,0 +1,453 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CommandRegistry } from '@lumino/commands';
+import {
+  BasicKeyHandler,
+  BasicMouseHandler,
+  BasicSelectionModel,
+  DataGrid,
+  DataModel,
+  TextRenderer
+} from '@lumino/datagrid';
+import { ISignal, Signal } from '@lumino/signaling';
+import { Panel } from '@lumino/widgets';
+
+import { IThemeManager } from '@jupyterlab/apputils';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+
+import { IDebugger } from '../../tokens';
+import { Debugger } from '../../';
+
+/**
+ * A class wrapping the underlying variables datagrid.
+ */
+export class Grid extends Panel {
+  /**
+   * Instantiate a new VariablesGrid.
+   *
+   * @param options The instantiation options for a VariablesGrid.
+   */
+  constructor(options: Grid.IOptions) {
+    super();
+    const { commands, model, themeManager } = options;
+    this.model = model;
+    const dataModel = new GridModel(options.translator);
+    const grid = new DataGrid();
+    const mouseHandler = new Private.MouseHandler();
+    mouseHandler.doubleClicked.connect((_, hit) =>
+      commands.execute(Debugger.CommandIDs.inspectVariable, {
+        variableReference: dataModel.getVariableReference(hit.row),
+        name: dataModel.getVariableName(hit.row)
+      })
+    );
+    mouseHandler.selected.connect((_, hit) => {
+      const { row } = hit;
+      this.model.selectedVariable = {
+        name: dataModel.getVariableName(row),
+        value: dataModel.data('body', row, 1),
+        type: dataModel.data('body', row, 2),
+        variablesReference: dataModel.getVariableReference(row)
+      };
+    });
+    grid.dataModel = dataModel;
+    grid.keyHandler = new BasicKeyHandler();
+    grid.mouseHandler = mouseHandler;
+    grid.selectionModel = new BasicSelectionModel({
+      dataModel
+    });
+    grid.stretchLastColumn = true;
+    grid.node.style.height = '100%';
+    this._grid = grid;
+
+    // Compute the grid's styles based on the current theme.
+    if (themeManager) {
+      themeManager.themeChanged.connect(this._updateStyles, this);
+    }
+    this.addWidget(grid);
+  }
+
+  /**
+   * Set the variable filter list.
+   *
+   * @param filter The variable filter to apply.
+   */
+  set filter(filter: Set<string>) {
+    (this._grid.dataModel as GridModel).filter = filter;
+    this.update();
+  }
+
+  /**
+   * Set the scope for the variables data model.
+   *
+   * @param scope The scopes for the variables
+   */
+  set scope(scope: string) {
+    (this._grid.dataModel as GridModel).scope = scope;
+    this.update();
+  }
+
+  /**
+   * Get the data model for the data grid.
+   */
+  get dataModel(): GridModel {
+    return this._grid.dataModel as GridModel;
+  }
+
+  /**
+   * Handle `after-attach` messages.
+   *
+   * @param message - The `after-attach` message.
+   */
+  protected onAfterAttach(message: any): void {
+    super.onAfterAttach(message);
+    this._updateStyles();
+  }
+
+  /**
+   * Update the computed style for the data grid on theme change.
+   */
+  private _updateStyles(): void {
+    const { style, textRenderer } = Private.computeStyle();
+    this._grid.cellRenderers.update({}, textRenderer);
+    this._grid.style = style;
+  }
+
+  private _grid: DataGrid;
+  protected model: IDebugger.Model.IVariables;
+}
+
+/**
+ * A namespace for VariablesGrid `statics`.
+ */
+namespace Grid {
+  /**
+   * Instantiation options for `VariablesGrid`.
+   */
+  export interface IOptions {
+    /**
+     * The commands registry.
+     */
+    commands: CommandRegistry;
+
+    /**
+     * The variables model.
+     */
+    model: IDebugger.Model.IVariables;
+
+    /**
+     * An optional application theme manager to detect theme changes.
+     */
+    themeManager?: IThemeManager | null;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator;
+  }
+}
+
+/**
+ * A data grid model for variables.
+ */
+export class GridModel extends DataModel {
+  /**
+   * Create gird model
+   * @param translator optional translator
+   */
+  constructor(translator?: ITranslator) {
+    super();
+    this._trans = (translator || nullTranslator).load('jupyterlab');
+  }
+
+  /**
+   * The variable filter list.
+   */
+  get filter(): Set<string> {
+    return this._filter;
+  }
+  set filter(filter: Set<string>) {
+    this._filter = filter;
+  }
+
+  /**
+   * The current scope for the variables.
+   */
+  get scope(): string {
+    return this._scope;
+  }
+  set scope(scope: string) {
+    this._scope = scope;
+  }
+
+  /**
+   * Get the row count for a particular region in the data grid.
+   *
+   * @param region The datagrid region.
+   */
+  rowCount(region: DataModel.RowRegion): number {
+    return region === 'body' ? this._data.name.length : 1;
+  }
+
+  /**
+   * Get the column count for a particular region in the data grid.
+   *
+   * @param region The datagrid region.
+   */
+  columnCount(region: DataModel.ColumnRegion): number {
+    return region === 'body' ? 2 : 1;
+  }
+
+  /**
+   * Get the data count for a particular region, row and column in the data grid.
+   *
+   * @param region The datagrid region.
+   * @param row The datagrid row
+   * @param column The datagrid column
+   */
+  data(region: DataModel.CellRegion, row: number, column: number): any {
+    if (region === 'row-header') {
+      return this._data.name[row];
+    }
+
+    if (region === 'column-header') {
+      return column === 1 ? this._trans.__('Value') : this._trans.__('Type');
+    }
+    if (region === 'corner-header') {
+      return this._trans.__('Name');
+    }
+
+    return column === 1 ? this._data.value[row] : this._data.type[row];
+  }
+
+  /**
+   * Get the variable reference for a given row
+   *
+   * @param row The row in the datagrid.
+   */
+  getVariableReference(row: number): number {
+    return this._data.variablesReference[row];
+  }
+
+  /**
+   * Get the variable name for a given row
+   *
+   * @param row The row in the datagrid.
+   */
+  getVariableName(row: number): string {
+    return this._data.name[row];
+  }
+
+  /**
+   * Set the datagrid model data from the list of variables.
+   *
+   * @param scopes The list of variables.
+   */
+  setData(scopes: IDebugger.IScope[]): void {
+    this._clearData();
+    this.emitChanged({
+      type: 'model-reset',
+      region: 'body'
+    });
+    const scope = scopes.find(scope => scope.name === this._scope) ?? scopes[0];
+    const variables = scope?.variables ?? [];
+    const filtered = variables.filter(
+      variable => variable.name && !this._filter.has(variable.name)
+    );
+    filtered.forEach((variable, index) => {
+      this._data.name[index] = variable.name;
+      this._data.type[index] = variable.type ?? '';
+      this._data.value[index] = variable.value;
+      this._data.variablesReference[index] = variable.variablesReference;
+    });
+    this.emitChanged({
+      type: 'rows-inserted',
+      region: 'body',
+      index: 1,
+      span: filtered.length
+    });
+  }
+
+  /**
+   * Clear all the data in the datagrid.
+   */
+  private _clearData(): void {
+    this._data = {
+      name: [],
+      type: [],
+      value: [],
+      variablesReference: []
+    };
+  }
+
+  private _filter = new Set<string>();
+  private _scope = '';
+  private _trans: TranslationBundle;
+  private _data: {
+    name: string[];
+    type: string[];
+    value: string[];
+    variablesReference: number[];
+  } = {
+    name: [],
+    type: [],
+    value: [],
+    variablesReference: []
+  };
+}
+
+/**
+ * A namespace for private data.
+ */
+namespace Private {
+  /**
+   * Create a color palette element.
+   */
+  function createPalette(): HTMLDivElement {
+    const div = document.createElement('div');
+    div.className = 'jp-DebuggerVariables-colorPalette';
+    div.innerHTML = `
+        <div class="jp-mod-void"></div>
+        <div class="jp-mod-background"></div>
+        <div class="jp-mod-header-background"></div>
+        <div class="jp-mod-grid-line"></div>
+        <div class="jp-mod-header-grid-line"></div>
+        <div class="jp-mod-selection"></div>
+        <div class="jp-mod-text"></div>
+      `;
+    return div;
+  }
+
+  /**
+   * Compute the style and renderer for a data grid.
+   */
+  export function computeStyle(): {
+    style: DataGrid.Style;
+    textRenderer: TextRenderer;
+  } {
+    const palette = createPalette();
+    document.body.appendChild(palette);
+    let node: HTMLDivElement | null;
+    node = palette.querySelector('.jp-mod-void');
+    const voidColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-background');
+    const backgroundColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-header-background');
+    const headerBackgroundColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-grid-line');
+    const gridLineColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-header-grid-line');
+    const headerGridLineColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-selection');
+    const selectionFillColor = getComputedStyle(node!).color;
+    node = palette.querySelector('.jp-mod-text');
+    const textColor = getComputedStyle(node!).color;
+    document.body.removeChild(palette);
+    return {
+      style: {
+        voidColor,
+        backgroundColor,
+        headerBackgroundColor,
+        gridLineColor,
+        headerGridLineColor,
+        rowBackgroundColor: (i: number): string =>
+          i % 2 === 0 ? voidColor : backgroundColor,
+        selectionFillColor
+      },
+      textRenderer: new TextRenderer({
+        font: '12px sans-serif',
+        textColor,
+        backgroundColor: '',
+        verticalAlignment: 'center',
+        horizontalAlignment: 'left'
+      })
+    };
+  }
+
+  /**
+   * A custom click handler to handle clicks on the variables grid.
+   */
+  export class MouseHandler extends BasicMouseHandler {
+    /**
+     * A signal emitted when the variables grid is double clicked.
+     */
+    get doubleClicked(): ISignal<this, DataGrid.HitTestResult> {
+      return this._doubleClicked;
+    }
+
+    /**
+     * A signal emitted when the variables grid received mouse down or context menu event.
+     */
+    get selected(): ISignal<this, DataGrid.HitTestResult> {
+      return this._selected;
+    }
+
+    /**
+     * Dispose of the resources held by the mouse handler.
+     */
+    dispose(): void {
+      if (this.isDisposed) {
+        return;
+      }
+
+      Signal.disconnectSender(this);
+
+      super.dispose();
+    }
+
+    /**
+     * Handle a mouse double-click event.
+     *
+     * @param grid The datagrid clicked.
+     * @param event The mouse event.
+     */
+    onMouseDoubleClick(grid: DataGrid, event: MouseEvent): void {
+      const hit = grid.hitTest(event.clientX, event.clientY);
+      this._doubleClicked.emit(hit);
+    }
+
+    /**
+     * Handle the mouse down event for the data grid.
+     *
+     * @param grid - The data grid of interest.
+     *
+     * @param event - The mouse down event of interest.
+     */
+    onMouseDown(grid: DataGrid, event: MouseEvent): void {
+      // Unpack the event.
+      let { clientX, clientY } = event;
+
+      // Hit test the grid.
+      let hit = grid.hitTest(clientX, clientY);
+
+      this._selected.emit(hit);
+
+      // Propagate event to Lumino DataGrid BasicMouseHandler.
+      super.onMouseDown(grid, event);
+    }
+
+    /**
+     * Handle the context menu event for the data grid.
+     *
+     * @param grid - The data grid of interest.
+     *
+     * @param event - The context menu event of interest.
+     */
+    onContextMenu(grid: DataGrid, event: MouseEvent): void {
+      // Unpack the event.
+      let { clientX, clientY } = event;
+
+      // Hit test the grid.
+      let hit = grid.hitTest(clientX, clientY);
+
+      this._selected.emit(hit);
+    }
+
+    private _doubleClicked = new Signal<this, DataGrid.HitTestResult>(this);
+    private _selected = new Signal<this, DataGrid.HitTestResult>(this);
+  }
+}
diff --git a/packages/debugger/src/panels/variables/header.ts b/packages/debugger/src/panels/variables/header.ts
deleted file mode 100644
index 1287b25f47a5..000000000000
--- a/packages/debugger/src/panels/variables/header.ts
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Toolbar } from '@jupyterlab/apputils';
-
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { PanelLayout, Widget } from '@lumino/widgets';
-
-/**
- * The header for a Variables Panel.
- */
-export class VariablesHeader extends Widget {
-  /**
-   * Instantiate a new VariablesHeader.
-   */
-  constructor(translator?: ITranslator) {
-    super({ node: document.createElement('div') });
-    this.node.classList.add('jp-stack-panel-header');
-
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-
-    const title = new Widget({ node: document.createElement('h2') });
-    title.node.textContent = trans.__('Variables');
-
-    const layout = new PanelLayout();
-    layout.addWidget(title);
-    layout.addWidget(this.toolbar);
-    this.layout = layout;
-  }
-
-  /**
-   * The toolbar for the callstack header.
-   */
-  readonly toolbar = new Toolbar();
-}
diff --git a/packages/debugger/src/panels/variables/index.ts b/packages/debugger/src/panels/variables/index.ts
index fa77ffc4862a..3823503c578d 100644
--- a/packages/debugger/src/panels/variables/index.ts
+++ b/packages/debugger/src/panels/variables/index.ts
@@ -1,52 +1,52 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IThemeManager, ToolbarButton } from '@jupyterlab/apputils';
-
+import { IThemeManager } from '@jupyterlab/apputils';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-
-import { tableRowsIcon, treeViewIcon } from '@jupyterlab/ui-components';
-
+import {
+  PanelWithToolbar,
+  tableRowsIcon,
+  ToolbarButton,
+  treeViewIcon
+} from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
-
 import { Panel, Widget } from '@lumino/widgets';
-
 import { IDebugger } from '../../tokens';
-
 import { VariablesBodyGrid } from './grid';
-
-import { VariablesHeader } from './header';
-
 import { ScopeSwitcher } from './scope';
-
 import { VariablesBodyTree } from './tree';
 
 /**
  * A Panel to show a variable explorer.
  */
-export class Variables extends Panel {
+export class Variables extends PanelWithToolbar {
   /**
    * Instantiate a new Variables Panel.
    *
    * @param options The instantiation options for a Variables Panel.
    */
   constructor(options: Variables.IOptions) {
-    super();
-
+    super(options);
     const { model, service, commands, themeManager } = options;
     const translator = options.translator || nullTranslator;
     const trans = translator.load('jupyterlab');
-    this._header = new VariablesHeader(translator);
+    this.title.label = trans.__('Variables');
+    this.toolbar.addClass('jp-DebuggerVariables-toolbar');
     this._tree = new VariablesBodyTree({
       model,
       service,
       commands,
       translator
     });
-    this._table = new VariablesBodyGrid({ model, commands, themeManager });
+    this._table = new VariablesBodyGrid({
+      model,
+      commands,
+      themeManager,
+      translator
+    });
     this._table.hide();
 
-    this._header.toolbar.addItem(
+    this.toolbar.addItem(
       'scope-switcher',
       new ScopeSwitcher({
         translator,
@@ -99,11 +99,10 @@ export class Variables extends Panel {
 
     markViewButtonSelection(this._table.isHidden ? 'tree' : 'table');
 
-    this._header.toolbar.addItem('view-VariableTreeView', treeViewButton);
+    this.toolbar.addItem('view-VariableTreeView', treeViewButton);
 
-    this._header.toolbar.addItem('view-VariableTableView', tableViewButton);
+    this.toolbar.addItem('view-VariableTableView', tableViewButton);
 
-    this.addWidget(this._header);
     this.addWidget(this._tree);
     this.addWidget(this._table);
     this.addClass('jp-DebuggerVariables');
@@ -133,11 +132,10 @@ export class Variables extends Panel {
    * @param msg The resize message.
    */
   private _resizeBody(msg: Widget.ResizeMessage): void {
-    const height = msg.height - this._header.node.offsetHeight;
+    const height = msg.height - this.toolbar.node.offsetHeight;
     this._tree.node.style.height = `${height}px`;
   }
 
-  private _header: VariablesHeader;
   private _tree: VariablesBodyTree;
   private _table: VariablesBodyGrid;
 }
diff --git a/packages/debugger/src/panels/variables/mimerenderer.ts b/packages/debugger/src/panels/variables/mimerenderer.ts
index 210f7938a913..d4c5a1d8d55d 100644
--- a/packages/debugger/src/panels/variables/mimerenderer.ts
+++ b/packages/debugger/src/panels/variables/mimerenderer.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { MainAreaWidget } from '@jupyterlab/apputils';
 import { IRenderMimeRegistry, MimeModel } from '@jupyterlab/rendermime';
 import {
diff --git a/packages/debugger/src/panels/variables/scope.tsx b/packages/debugger/src/panels/variables/scope.tsx
index 88dd4e9ac4f4..79edc6e9b316 100644
--- a/packages/debugger/src/panels/variables/scope.tsx
+++ b/packages/debugger/src/panels/variables/scope.tsx
@@ -1,19 +1,17 @@
-import { ReactWidget, UseSignal } from '@jupyterlab/apputils';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-
-import { HTMLSelect } from '@jupyterlab/ui-components';
-
+import { HTMLSelect, ReactWidget, UseSignal } from '@jupyterlab/ui-components';
 import React, { useState } from 'react';
-
 import { IDebugger } from '../../tokens';
-
 import { VariablesBodyGrid } from './grid';
-
 import { VariablesBodyTree } from './tree';
 
 /**
diff --git a/packages/debugger/src/panels/variables/tree.tsx b/packages/debugger/src/panels/variables/tree.tsx
index 2b351a922d9b..28bf37487606 100644
--- a/packages/debugger/src/panels/variables/tree.tsx
+++ b/packages/debugger/src/panels/variables/tree.tsx
@@ -1,18 +1,34 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ReactWidget } from '@jupyterlab/apputils';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { caretDownEmptyIcon, searchIcon } from '@jupyterlab/ui-components';
+
+import { ISignal, Signal } from '@lumino/signaling';
+
+import {
+  caretDownEmptyIcon,
+  ReactWidget,
+  searchIcon
+} from '@jupyterlab/ui-components';
+
 import { ArrayExt } from '@lumino/algorithm';
+
 import { CommandRegistry } from '@lumino/commands';
-import React, { useEffect, useState } from 'react';
+
 import { DebugProtocol } from '@vscode/debugprotocol';
+
+import React, { useCallback, useEffect, useState } from 'react';
+
 import { convertType } from '.';
+
 import { Debugger } from '../../debugger';
+
 import { IDebugger } from '../../tokens';
+
 import { VariablesModel } from './model';
 
+const BUTTONS_CLASS = 'jp-DebuggerVariables-buttons';
+
 /**
  * The body for tree of variables.
  */
@@ -27,6 +43,7 @@ export class VariablesBodyTree extends ReactWidget {
     this._commands = options.commands;
     this._service = options.service;
     this._translator = options.translator;
+    this._hoverChanged = new Signal(this);
 
     const model = (this.model = options.model);
     model.changed.connect(this._updateScopes, this);
@@ -41,18 +58,41 @@ export class VariablesBodyTree extends ReactWidget {
     const scope =
       this._scopes.find(scope => scope.name === this._scope) ?? this._scopes[0];
 
+    const handleSelectVariable = (variable: IDebugger.IVariable) => {
+      this.model.selectedVariable = variable;
+    };
+    const collapserIcon = (
+      <caretDownEmptyIcon.react stylesheet="menuItem" tag="span" />
+    );
+
+    if (scope?.name !== 'Globals') {
+      this.addClass('jp-debuggerVariables-local');
+    } else {
+      this.removeClass('jp-debuggerVariables-local');
+    }
+
     return scope ? (
-      <VariablesComponent
-        key={scope.name}
-        commands={this._commands}
-        service={this._service}
-        data={scope.variables}
-        filter={this._filter}
-        translator={this._translator}
-        handleSelectVariable={variable => {
-          this.model.selectedVariable = variable;
-        }}
-      />
+      <>
+        <VariablesBranch
+          key={scope.name}
+          commands={this._commands}
+          service={this._service}
+          data={scope.variables}
+          filter={this._filter}
+          translator={this._translator}
+          handleSelectVariable={handleSelectVariable}
+          onHoverChanged={(data: IHoverData) => {
+            this._hoverChanged.emit(data);
+          }}
+          collapserIcon={collapserIcon}
+        />
+        <TreeButtons
+          commands={this._commands}
+          service={this._service}
+          hoverChanged={this._hoverChanged}
+          handleSelectVariable={handleSelectVariable}
+        />
+      </>
     ) : (
       <div></div>
     );
@@ -94,9 +134,153 @@ export class VariablesBodyTree extends ReactWidget {
   private _filter = new Set<string>();
   private _service: IDebugger;
   private _translator: ITranslator | undefined;
+  private _hoverChanged: Signal<VariablesBodyTree, IHoverData>;
+}
+
+interface IHoverData {
+  /**
+   * The mouse target.
+   */
+  target: (EventTarget & HTMLElement) | null;
+  /**
+   * The variable corresponding to node under cursor.
+   */
+  variable: IDebugger.IVariable | null;
 }
 
-interface IVariablesComponentProps {
+interface ITreeButtonsProps {
+  /**
+   * The commands registry.
+   */
+  commands: CommandRegistry;
+  /**
+   * The debugger service.
+   */
+  service: IDebugger;
+  /**
+   * The application language translator
+   */
+  translator?: ITranslator;
+  /**
+   * Callback on variable selection
+   */
+  handleSelectVariable: (variable: IDebugger.IVariable) => void;
+  /**
+   * Signal to be emitted on mouse over event.
+   */
+  hoverChanged: ISignal<VariablesBodyTree, IHoverData>;
+}
+
+/**
+ * The singleton buttons bar shown by the variables.
+ */
+const TreeButtons = (props: ITreeButtonsProps): JSX.Element => {
+  const { commands, service, translator, handleSelectVariable } = props;
+  const trans = (translator ?? nullTranslator).load('jupyterlab');
+
+  const [buttonsTop, setButtonsTop] = useState<number>(0);
+  const [variable, setVariable] = useState<IDebugger.IVariable | null>(null);
+
+  let stateRefreshLock = 0;
+
+  // Empty dependency array is to only register once per lifetime.
+  const handleHover = useCallback((_: VariablesBodyTree, data: IHoverData) => {
+    const current = ++stateRefreshLock;
+    if (!data.variable) {
+      // Handle mouse leave.
+      if (current !== stateRefreshLock) {
+        return;
+      }
+      const target = data.target;
+      if (
+        target &&
+        // Note: Element, not HTMLElement to permit entering <svg> icon.
+        target instanceof Element &&
+        target.closest(`.${BUTTONS_CLASS}`)
+      ) {
+        // Allow to enter the buttons.
+        return;
+      }
+      setVariable(null);
+    } else {
+      // Handle mouse over.
+      setVariable(data.variable);
+      requestAnimationFrame(() => {
+        if (current !== stateRefreshLock || !data.target) {
+          return;
+        }
+        setButtonsTop(data.target.offsetTop);
+      });
+    }
+  }, []);
+
+  useEffect(() => {
+    props.hoverChanged.connect(handleHover);
+    return () => {
+      props.hoverChanged.disconnect(handleHover);
+    };
+  }, [handleHover]);
+
+  return (
+    <div
+      className={BUTTONS_CLASS}
+      style={
+        // Positioning and hiding is implemented using compositor-only
+        // properties (transform and opacity) for performance.
+        {
+          transform: `translateY(${buttonsTop}px)`,
+          opacity:
+            !variable ||
+            // Do not show buttons display for special entries, defined in debugpy:
+            // https://github.com/microsoft/debugpy/blob/cf0d684566edc339545b161da7c3dfc48af7c7d5/src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_utils.py#L359
+            [
+              'special variables',
+              'protected variables',
+              'function variables',
+              'class variables'
+            ].includes(variable.name)
+              ? 0
+              : 1
+        }
+      }
+    >
+      <button
+        className="jp-DebuggerVariables-renderVariable"
+        disabled={
+          !variable ||
+          !service.model.hasRichVariableRendering ||
+          !commands.isEnabled(Debugger.CommandIDs.renderMimeVariable, {
+            name: variable.name,
+            frameID: service.model.callstack.frame?.id
+          } as any)
+        }
+        onClick={e => {
+          if (!variable || !handleSelectVariable) {
+            return;
+          }
+          e.stopPropagation();
+          handleSelectVariable(variable);
+          commands
+            .execute(Debugger.CommandIDs.renderMimeVariable, {
+              name: variable.name,
+              frameID: service.model.callstack.frame?.id
+            } as any)
+            .catch(reason => {
+              console.error(
+                `Failed to render variable ${variable?.name}`,
+                reason
+              );
+            });
+        }}
+        title={trans.__('Render variable: %1', variable?.name)}
+      >
+        <searchIcon.react stylesheet="menuItem" tag="span" />
+      </button>
+    </div>
+  );
+};
+
+interface IVariablesBranchProps {
   /**
    * The commands registry.
    */
@@ -112,6 +296,14 @@ interface IVariablesComponentProps {
    * Callback on variable selection
    */
   handleSelectVariable?: (variable: IDebugger.IVariable) => void;
+  /**
+   * Callback on mouseOver/mouseLeave event.
+   */
+  onHoverChanged?: (data: IHoverData) => void;
+  /**
+   * Collapser icon component
+   */
+  collapserIcon: JSX.Element;
 }
 
 /**
@@ -122,14 +314,16 @@ interface IVariablesComponentProps {
  * @param props.service The debugger service.
  * @param props.filter Optional variable filter list.
  */
-const VariablesComponent = (props: IVariablesComponentProps): JSX.Element => {
+const VariablesBranch = (props: IVariablesBranchProps): JSX.Element => {
   const {
     commands,
     data,
     service,
     filter,
     translator,
-    handleSelectVariable
+    handleSelectVariable,
+    onHoverChanged,
+    collapserIcon
   } = props;
   const [variables, setVariables] = useState(data);
 
@@ -138,9 +332,9 @@ const VariablesComponent = (props: IVariablesComponentProps): JSX.Element => {
   }, [data]);
 
   return (
-    <ul>
+    <ul className="jp-DebuggerVariables-branch">
       {variables
-        ?.filter(
+        .filter(
           variable => !(filter || new Set()).has(variable.evaluateName || '')
         )
         .map(variable => {
@@ -154,6 +348,8 @@ const VariablesComponent = (props: IVariablesComponentProps): JSX.Element => {
               filter={filter}
               translator={translator}
               onSelect={handleSelectVariable}
+              onHoverChanged={onHoverChanged}
+              collapserIcon={collapserIcon}
             />
           );
         })}
@@ -189,6 +385,24 @@ interface IVariableComponentProps {
    * Callback on selection
    */
   onSelect?: (variable: IDebugger.IVariable) => void;
+  /**
+   * Callback on mouseOver/mouseLeave event.
+   */
+  onHoverChanged?: (data: IHoverData) => void;
+  /**
+   * Collapser icon component
+   */
+  collapserIcon: JSX.Element;
+}
+
+function _prepareDetail(variable: IDebugger.IVariable) {
+  const detail = convertType(variable);
+  if (variable.type === 'float' && isNaN(detail as number)) {
+    // silence React warning:
+    // `Received NaN for the `children` attribute. If this is expected, cast the value to a string`
+    return 'NaN';
+  }
+  return detail;
 }
 
 /**
@@ -200,24 +414,25 @@ interface IVariableComponentProps {
  * @param props.filter Optional variable filter list.
  */
 const VariableComponent = (props: IVariableComponentProps): JSX.Element => {
-  const { commands, data, service, filter, translator, onSelect } = props;
+  const {
+    commands,
+    data,
+    service,
+    filter,
+    translator,
+    onSelect,
+    onHoverChanged,
+    collapserIcon
+  } = props;
   const [variable] = useState(data);
   const [expanded, setExpanded] = useState<boolean>();
   const [variables, setVariables] = useState<DebugProtocol.Variable[]>();
-  const styleName = {
-    color: 'var(--jp-mirror-editor-attribute-color)'
-  };
 
-  const styleType = {
-    color: 'var(--jp-mirror-editor-string-color)'
-  };
   const onSelection = onSelect ?? (() => void 0);
 
   const expandable =
     variable.variablesReference !== 0 || variable.type === 'function';
 
-  const trans = (translator ?? nullTranslator).load('jupyterlab');
-
   const onVariableClicked = async (e: React.MouseEvent): Promise<void> => {
     if (!expandable) {
       return;
@@ -233,66 +448,52 @@ const VariableComponent = (props: IVariableComponentProps): JSX.Element => {
   return (
     <li
       onClick={(e): Promise<void> => onVariableClicked(e)}
-      onMouseDown={() => {
+      onMouseDown={e => {
+        e.stopPropagation();
         onSelection(variable);
       }}
+      onMouseOver={(event: React.MouseEvent<HTMLLIElement, MouseEvent>) => {
+        if (onHoverChanged) {
+          onHoverChanged({ target: event.currentTarget, variable });
+          event.stopPropagation();
+        }
+      }}
+      onMouseLeave={(event: React.MouseEvent<HTMLLIElement, MouseEvent>) => {
+        if (onHoverChanged) {
+          onHoverChanged({
+            target: event.relatedTarget as EventTarget & HTMLElement,
+            variable: null
+          });
+          event.stopPropagation();
+        }
+      }}
     >
-      <caretDownEmptyIcon.react
-        visibility={expandable ? 'visible' : 'hidden'}
-        stylesheet="menuItem"
-        tag="span"
-        transform={expanded ? 'rotate(0deg)' : 'rotate(-90deg)'}
-      />
-      <span style={styleName}>{variable.name}</span>
-      <span>: </span>
-      <span style={styleType}>{convertType(variable)}</span>
-      <span className="jp-DebuggerVariables-hspacer"></span>
-      {service.model.hasRichVariableRendering &&
-        // Don't add rich display for special entries
-        // debugpy: https://github.com/microsoft/debugpy/blob/cf0d684566edc339545b161da7c3dfc48af7c7d5/src/debugpy/_vendored/pydevd/_pydevd_bundle/pydevd_utils.py#L359
-        ![
-          'special variables',
-          'protected variables',
-          'function variables',
-          'class variables'
-        ].includes(variable.name) && (
-          <button
-            className="jp-DebuggerVariables-renderVariable"
-            disabled={
-              !commands.isEnabled(Debugger.CommandIDs.renderMimeVariable, {
-                name: variable.name,
-                frameID: service.model.callstack.frame?.id
-              } as any)
-            }
-            onClick={e => {
-              e.stopPropagation();
-              onSelection(variable);
-              commands
-                .execute(Debugger.CommandIDs.renderMimeVariable, {
-                  name: variable.name,
-                  frameID: service.model.callstack.frame?.id
-                } as any)
-                .catch(reason => {
-                  console.error(
-                    `Failed to render variable ${variable.name}`,
-                    reason
-                  );
-                });
-            }}
-            title={trans.__('Render variable')}
-          >
-            <searchIcon.react stylesheet="menuItem" tag="span" />
-          </button>
-        )}
-
+      <span
+        className={
+          'jp-DebuggerVariables-collapser' +
+          (expanded ? ' jp-mod-expanded' : '')
+        }
+      >
+        {
+          // note: using React.cloneElement due to high typestyle cost
+          expandable ? React.cloneElement(collapserIcon) : null
+        }
+      </span>
+      <span className="jp-DebuggerVariables-name">{variable.name}</span>
+      <span className="jp-DebuggerVariables-detail">
+        {_prepareDetail(variable)}
+      </span>
       {expanded && variables && (
-        <VariablesComponent
+        <VariablesBranch
           key={variable.name}
           commands={commands}
           data={variables}
           service={service}
           filter={filter}
           translator={translator}
+          handleSelectVariable={onSelect}
+          onHoverChanged={onHoverChanged}
+          collapserIcon={collapserIcon}
         />
       )}
     </li>
diff --git a/packages/debugger/src/service.ts b/packages/debugger/src/service.ts
index c47640e43fef..b0dceff2d064 100644
--- a/packages/debugger/src/service.ts
+++ b/packages/debugger/src/service.ts
@@ -3,6 +3,12 @@
 
 import { KernelSpec, Session } from '@jupyterlab/services';
 
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+
 import { IDisposable } from '@lumino/disposable';
 
 import { ISignal, Signal } from '@lumino/signaling';
@@ -35,6 +41,7 @@ export class DebuggerService implements IDebugger, IDisposable {
     this._specsManager = options.specsManager ?? null;
     this._model = new Debugger.Model();
     this._debuggerSources = options.debuggerSources ?? null;
+    this._trans = (options.translator || nullTranslator).load('jupyterlab');
   }
 
   /**
@@ -44,6 +51,13 @@ export class DebuggerService implements IDebugger, IDisposable {
     return this._eventMessage;
   }
 
+  /**
+   * Get debugger config.
+   */
+  get config(): IDebugger.IConfig {
+    return this._config;
+  }
+
   /**
    * Whether the debug service is disposed.
    */
@@ -59,20 +73,10 @@ export class DebuggerService implements IDebugger, IDisposable {
   }
 
   /**
-   * Whether the current debugger is pausing on exceptions.
+   * A signal emitted when the pause on exception filter changes.
    */
-  get isPausingOnExceptions(): boolean {
-    const kernel = this.session?.connection?.kernel?.name ?? '';
-    if (kernel) {
-      const tmpFileParams = this._config.getTmpFileParams(kernel);
-      if (tmpFileParams) {
-        return (
-          this._session?.pausingOnExceptions.includes(tmpFileParams.prefix) ??
-          false
-        );
-      }
-    }
-    return false;
+  get pauseOnExceptionChanged(): Signal<IDebugger, void> {
+    return this._pauseOnExceptionChanged;
   }
 
   /**
@@ -114,6 +118,7 @@ export class DebuggerService implements IDebugger, IDisposable {
       }
       this._eventMessage.emit(event);
     });
+
     this._sessionChanged.emit(session);
   }
 
@@ -322,6 +327,41 @@ export class DebuggerService implements IDebugger, IDisposable {
     }
   }
 
+  /**
+   * Request to set a variable in the global scope.
+   *
+   * @param name The name of the variable.
+   */
+  async copyToGlobals(name: string): Promise<void> {
+    if (!this.session) {
+      throw new Error('No active debugger session');
+    }
+    if (!this.model.supportCopyToGlobals) {
+      throw new Error(
+        'The "copyToGlobals" request is not supported by the kernel'
+      );
+    }
+
+    const frames = this.model.callstack.frames;
+    this.session
+      .sendRequest('copyToGlobals', {
+        srcVariableName: name,
+        dstVariableName: name,
+        srcFrameId: frames[0].id
+      })
+      .then(async () => {
+        const scopes = await this._getScopes(frames[0]);
+        const variables = await Promise.all(
+          scopes.map(scope => this._getVariables(scope))
+        );
+        const variableScopes = this._convertScopes(scopes, variables);
+        this._model.variables.scopes = variableScopes;
+      })
+      .catch(reason => {
+        console.error(reason);
+      });
+  }
+
   /**
    * Requests all the defined variables and display them in the
    * table view.
@@ -335,13 +375,29 @@ export class DebuggerService implements IDebugger, IDisposable {
 
     const variableScopes = [
       {
-        name: 'Globals',
+        name: this._trans.__('Globals'),
         variables: variables
       }
     ];
     this._model.variables.scopes = variableScopes;
   }
 
+  async displayModules(): Promise<void> {
+    if (!this.session) {
+      throw new Error('No active debugger session');
+    }
+
+    const modules = await this.session.sendRequest('modules', {});
+    this._model.kernelSources.kernelSources = modules.body.modules.map(
+      module => {
+        return {
+          name: module.name as string,
+          path: module.path as string
+        };
+      }
+    );
+  }
+
   /**
    * Restart the debugger.
    */
@@ -368,6 +424,8 @@ export class DebuggerService implements IDebugger, IDisposable {
     const stoppedThreads = new Set(body.stoppedThreads);
 
     this._model.hasRichVariableRendering = body.richRendering === true;
+    this._model.supportCopyToGlobals = body.copyToGlobals === true;
+
     this._config.setHashParams({
       kernel: this.session?.connection?.kernel?.name ?? '',
       method: body.hashMethod,
@@ -404,6 +462,11 @@ export class DebuggerService implements IDebugger, IDisposable {
       this._clearModel();
       this._clearSignals();
     }
+
+    // Send the currentExceptionFilters to debugger.
+    if (this.session.currentExceptionFilters) {
+      await this.pauseOnExceptions(this.session.currentExceptionFilters);
+    }
   }
 
   /**
@@ -513,11 +576,19 @@ export class DebuggerService implements IDebugger, IDisposable {
       this._model.breakpoints.restoreBreakpoints(remoteBreakpoints);
     }
 
+    // Removes duplicated breakpoints. It is better to do it here than
+    // in the editor, because the kernel can change the line of a
+    // breakpoint (when you attemp to set a breakpoint on an empty
+    // line for instance).
+    let addedLines = new Set<number>();
     // Set the kernel's breakpoints for this path.
     const reply = await this._setBreakpoints(localBreakpoints, path);
-    const updatedBreakpoints = reply.body.breakpoints.filter(
-      (val, _, arr) => arr.findIndex(el => el.line === val.line) > -1
-    );
+    const updatedBreakpoints = reply.body.breakpoints.filter((val, _, arr) => {
+      const cond1 = arr.findIndex(el => el.line === val.line) > -1;
+      const cond2 = !addedLines.has(val.line!);
+      addedLines.add(val.line!);
+      return cond1 && cond2;
+    });
 
     // Update the local model and finish kernel configuration.
     this._model.breakpoints.setBreakpoints(path, updatedBreakpoints);
@@ -526,11 +597,10 @@ export class DebuggerService implements IDebugger, IDisposable {
 
   /**
    * Determines if pausing on exceptions is supported by the kernel
-   *
    */
   pauseOnExceptionsIsValid(): boolean {
     if (this.isStarted) {
-      if (this.session?.exceptionBreakpointFilters) {
+      if (this.session?.exceptionBreakpointFilters?.length !== 0) {
         return true;
       }
     }
@@ -538,56 +608,46 @@ export class DebuggerService implements IDebugger, IDisposable {
   }
 
   /**
-   * Enable or disable pausing on exceptions.
+   * Add or remove a filter from the current used filters.
    *
-   * @param enable - Whether to enbale or disable pausing on exceptions.
+   * @param exceptionFilter - The filter to add or remove from current filters.
    */
-  async pauseOnExceptions(enable: boolean): Promise<void> {
+  async pauseOnExceptionsFilter(exceptionFilter: string): Promise<void> {
     if (!this.session?.isStarted) {
       return;
     }
-
-    const kernel = this.session?.connection?.kernel?.name ?? '';
-    if (!kernel) {
-      return;
-    }
-    const tmpFileParams = this._config.getTmpFileParams(kernel);
-    if (!tmpFileParams) {
-      return;
-    }
-    let prefix = tmpFileParams.prefix;
-    const exceptionBreakpointFilters = this.session.exceptionBreakpointFilters;
-    let pauseOnExceptionKernels = this.session.pausingOnExceptions;
-    if (enable) {
-      if (!this.session.pausingOnExceptions.includes(prefix)) {
-        pauseOnExceptionKernels.push(prefix);
-        this.session.pausingOnExceptions = pauseOnExceptionKernels;
-      }
+    let exceptionFilters = this.session.currentExceptionFilters;
+    if (this.session.isPausingOnException(exceptionFilter)) {
+      const index = exceptionFilters.indexOf(exceptionFilter);
+      exceptionFilters.splice(index, 1);
     } else {
-      let prefixIndex = this.session.pausingOnExceptions.indexOf(prefix);
-      if (prefixIndex > -1) {
-        this.session.pausingOnExceptions = pauseOnExceptionKernels.splice(
-          prefixIndex,
-          1
-        );
-        this.session.pausingOnExceptions = pauseOnExceptionKernels;
-      }
+      exceptionFilters?.push(exceptionFilter);
     }
-    const filters: string[] = [];
-    const exceptionOptions: DebugProtocol.ExceptionOptions[] = [];
-    const breakMode = enable ? 'userUnhandled' : 'never';
-    for (let filterDict of exceptionBreakpointFilters ?? []) {
-      filters.push(filterDict.filter);
-      exceptionOptions.push({
-        path: [{ names: this.session.exceptionPaths }],
-        breakMode: breakMode
-      });
+    await this.pauseOnExceptions(exceptionFilters);
+  }
+
+  /**
+   * Enable or disable pausing on exceptions.
+   *
+   * @param exceptionFilters - The filters to use for the current debugging session.
+   */
+  async pauseOnExceptions(exceptionFilters: string[]): Promise<void> {
+    if (!this.session?.isStarted) {
+      return;
     }
-    const options: DebugProtocol.SetExceptionBreakpointsArguments = {
-      filters: filters,
-      exceptionOptions: exceptionOptions
+    const exceptionBreakpointFilters =
+      this.session.exceptionBreakpointFilters?.map(e => e.filter) || [];
+    let options: DebugProtocol.SetExceptionBreakpointsArguments = {
+      filters: []
     };
+    exceptionFilters.forEach(filter => {
+      if (exceptionBreakpointFilters.includes(filter)) {
+        options.filters.push(filter);
+      }
+    });
+    this.session.currentExceptionFilters = options.filters;
     await this.session.sendRequest('setExceptionBreakpoints', options);
+    this._pauseOnExceptionChanged.emit();
   }
 
   /**
@@ -598,15 +658,17 @@ export class DebuggerService implements IDebugger, IDisposable {
   getDebuggerState(): IDebugger.State {
     const breakpoints = this._model.breakpoints.breakpoints;
     let cells: string[] = [];
-    for (const id of breakpoints.keys()) {
-      const editorList = this._debuggerSources!.find({
-        focus: false,
-        kernel: this.session?.connection?.kernel?.name ?? '',
-        path: this._session?.connection?.path ?? '',
-        source: id
-      });
-      const tmp_cells = editorList.map(e => e.model.value.text);
-      cells = cells.concat(tmp_cells);
+    if (this._debuggerSources) {
+      for (const id of breakpoints.keys()) {
+        const editorList = this._debuggerSources.find({
+          focus: false,
+          kernel: this.session?.connection?.kernel?.name ?? '',
+          path: this._session?.connection?.path ?? '',
+          source: id
+        });
+        const tmpCells = editorList.map(e => e.src.getSource());
+        cells = cells.concat(tmpCells);
+      }
     }
     return { cells, breakpoints };
   }
@@ -867,22 +929,6 @@ export class DebuggerService implements IDebugger, IDisposable {
     this._model.variables.scopes = variableScopes;
   }
 
-  async displayModules(): Promise<void> {
-    if (!this.session) {
-      throw new Error('No active debugger session');
-    }
-
-    const modules = await this.session.sendRequest('modules', {});
-    this._model.kernelSources.kernelSources = modules.body.modules.map(
-      module => {
-        return {
-          name: module.name as string,
-          path: module.path as string
-        };
-      }
-    );
-  }
-
   /**
    * Handle a variable expanded event and request variables from the kernel.
    *
@@ -965,6 +1011,8 @@ export class DebuggerService implements IDebugger, IDisposable {
     this
   );
   private _specsManager: KernelSpec.IManager | null;
+  private _trans: TranslationBundle;
+  private _pauseOnExceptionChanged = new Signal<IDebugger, void>(this);
 }
 
 /**
@@ -989,5 +1037,10 @@ export namespace DebuggerService {
      * The optional kernel specs manager.
      */
     specsManager?: KernelSpec.IManager | null;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator | null;
   }
 }
diff --git a/packages/debugger/src/session.ts b/packages/debugger/src/session.ts
index 1f6f01cf2dd8..80b76f58e599 100644
--- a/packages/debugger/src/session.ts
+++ b/packages/debugger/src/session.ts
@@ -24,6 +24,7 @@ export class DebuggerSession implements IDebugger.ISession {
    */
   constructor(options: DebuggerSession.IOptions) {
     this.connection = options.connection;
+    this._config = options.config;
     this.translator = options.translator || nullTranslator;
   }
 
@@ -95,17 +96,6 @@ export class DebuggerSession implements IDebugger.ISession {
     return this._isStarted;
   }
 
-  /**
-   * Whether to pause on exceptions
-   */
-  get pausingOnExceptions(): string[] {
-    return this._pausingOnExceptions;
-  }
-
-  set pausingOnExceptions(updatedPausingOnExceptions: string[]) {
-    this._pausingOnExceptions = updatedPausingOnExceptions;
-  }
-
   /**
    * Exception paths defined by the debugger
    */
@@ -122,6 +112,47 @@ export class DebuggerSession implements IDebugger.ISession {
     return this._exceptionBreakpointFilters;
   }
 
+  /**
+   * Get current exception filters.
+   */
+  get currentExceptionFilters(): string[] {
+    const kernel = this.connection?.kernel?.name ?? '';
+    if (!kernel) {
+      return [];
+    }
+    const tmpFileParams = this._config.getTmpFileParams(kernel);
+    if (!tmpFileParams) {
+      return [];
+    }
+    let prefix = tmpFileParams.prefix;
+    if (Object.keys(this._currentExceptionFilters).includes(prefix)) {
+      return this._currentExceptionFilters[prefix];
+    }
+    return [];
+  }
+
+  /**
+   * Set current exception filters.
+   */
+  set currentExceptionFilters(exceptionFilters: string[] | null) {
+    const kernel = this.connection?.kernel?.name ?? '';
+    if (!kernel) {
+      return;
+    }
+    const tmpFileParams = this._config.getTmpFileParams(kernel);
+    if (!tmpFileParams) {
+      return;
+    }
+    let prefix = tmpFileParams.prefix;
+    if (exceptionFilters === null) {
+      if (Object.keys(this._currentExceptionFilters).includes(prefix)) {
+        delete this._currentExceptionFilters[prefix];
+      }
+    } else {
+      this._currentExceptionFilters[prefix] = exceptionFilters;
+    }
+  }
+
   /**
    * Signal emitted for debug event messages.
    */
@@ -174,11 +205,11 @@ export class DebuggerSession implements IDebugger.ISession {
    * Stop the running debug session.
    */
   async stop(): Promise<void> {
+    this._isStarted = false;
     await this.sendRequest('disconnect', {
       restart: false,
       terminateDebuggee: false
     });
-    this._isStarted = false;
   }
 
   /**
@@ -191,6 +222,19 @@ export class DebuggerSession implements IDebugger.ISession {
     return message;
   }
 
+  /**
+   * Whether the debugger is pausing on exception.
+   *
+   * @param filter - Specify a filter
+   */
+  isPausingOnException(filter?: string): boolean {
+    if (filter) {
+      return this.currentExceptionFilters?.includes(filter) ?? false;
+    } else {
+      return this.currentExceptionFilters.length > 0;
+    }
+  }
+
   /**
    * Send a custom debug request to the kernel.
    *
@@ -256,14 +300,15 @@ export class DebuggerSession implements IDebugger.ISession {
   private _seq = 0;
   private _ready = new PromiseDelegate<void>();
   private _connection: Session.ISessionConnection | null;
+  private _config: IDebugger.IConfig;
   private _capabilities: DebugProtocol.Capabilities | undefined;
   private _isDisposed = false;
   private _isStarted = false;
-  private _pausingOnExceptions: string[] = [];
   private _exceptionPaths: string[] = [];
   private _exceptionBreakpointFilters:
     | DebugProtocol.ExceptionBreakpointsFilter[]
     | undefined = [];
+  private _currentExceptionFilters: IDebugger.ISession.IExceptionFilter = {};
   private _disposed = new Signal<this, void>(this);
   private _eventMessage = new Signal<
     IDebugger.ISession,
@@ -284,6 +329,11 @@ export namespace DebuggerSession {
      */
     connection: Session.ISessionConnection;
 
+    /**
+     * The debugger config
+     */
+    config: IDebugger.IConfig;
+
     /**
      * The application language translator.
      */
diff --git a/packages/debugger/src/sidebar.ts b/packages/debugger/src/sidebar.ts
index 7e055378a833..44088c9862e6 100644
--- a/packages/debugger/src/sidebar.ts
+++ b/packages/debugger/src/sidebar.ts
@@ -7,9 +7,9 @@ import { IEditorServices } from '@jupyterlab/codeeditor';
 
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
-import { bugIcon } from '@jupyterlab/ui-components';
+import { bugIcon, SidePanel } from '@jupyterlab/ui-components';
 
-import { Panel, SplitPanel, Widget } from '@lumino/widgets';
+import { Widget } from '@lumino/widgets';
 
 import { Breakpoints as BreakpointsPanel } from './panels/breakpoints';
 
@@ -26,14 +26,15 @@ import { IDebugger } from './tokens';
 /**
  * A debugger sidebar.
  */
-export class DebuggerSidebar extends Panel implements IDebugger.ISidebar {
+export class DebuggerSidebar extends SidePanel {
   /**
    * Instantiate a new Debugger.Sidebar
    *
    * @param options The instantiation options for a Debugger.Sidebar
    */
   constructor(options: DebuggerSidebar.IOptions) {
-    super();
+    const translator = options.translator || nullTranslator;
+    super({ translator });
     this.id = 'jp-debugger-sidebar';
     this.title.icon = bugIcon;
     this.addClass('jp-DebuggerSidebar');
@@ -45,7 +46,6 @@ export class DebuggerSidebar extends Panel implements IDebugger.ISidebar {
       service,
       themeManager
     } = options;
-    const translator = options.translator || nullTranslator;
     const model = service.model;
 
     this.variables = new VariablesPanel({
@@ -84,71 +84,18 @@ export class DebuggerSidebar extends Panel implements IDebugger.ISidebar {
 
     const header = new DebuggerSidebar.Header();
 
-    this.addWidget(header);
+    this.header.addWidget(header);
     model.titleChanged.connect((_, title) => {
       header.title.label = title;
     });
 
-    this._body = new SplitPanel();
-    this._body.orientation = 'vertical';
-    this._body.addClass('jp-DebuggerSidebar-body');
-    this.addWidget(this._body);
+    this.content.addClass('jp-DebuggerSidebar-body');
 
-    this.addItem(this.variables);
-    this.addItem(this.callstack);
-    this.addItem(this.breakpoints);
-    this.addItem(this.sources);
-    this.addItem(this.kernelSources);
-  }
-
-  /**
-   * Add an item at the end of the sidebar.
-   *
-   * @param widget - The widget to add to the sidebar.
-   *
-   * #### Notes
-   * If the widget is already contained in the sidebar, it will be moved.
-   * The item can be removed from the sidebar by setting its parent to `null`.
-   */
-  addItem(widget: Widget): void {
-    this._body.addWidget(widget);
-  }
-
-  /**
-   * Insert an item at the specified index.
-   *
-   * @param index - The index at which to insert the widget.
-   *
-   * @param widget - The widget to insert into to the sidebar.
-   *
-   * #### Notes
-   * If the widget is already contained in the sidebar, it will be moved.
-   * The item can be removed from the sidebar by setting its parent to `null`.
-   */
-  insertItem(index: number, widget: Widget): void {
-    this._body.insertWidget(index, widget);
-  }
-
-  /**
-   * A read-only array of the sidebar items.
-   */
-  get items(): readonly Widget[] {
-    return this._body.widgets;
-  }
-
-  /**
-   * Whether the sidebar is disposed.
-   */
-  isDisposed: boolean;
-
-  /**
-   * Dispose the sidebar.
-   */
-  dispose(): void {
-    if (this.isDisposed) {
-      return;
-    }
-    super.dispose();
+    this.addWidget(this.variables);
+    this.addWidget(this.callstack);
+    this.addWidget(this.breakpoints);
+    this.addWidget(this.sources);
+    this.addWidget(this.kernelSources);
   }
 
   /**
@@ -171,15 +118,7 @@ export class DebuggerSidebar extends Panel implements IDebugger.ISidebar {
    */
   readonly sources: SourcesPanel;
 
-  /**
-   * The kernel sources widget.
-   */
   readonly kernelSources: KernelSourcesPanel;
-
-  /**
-   * Container for debugger panels.
-   */
-  private _body: SplitPanel;
 }
 
 /**
@@ -231,7 +170,7 @@ export namespace DebuggerSidebar {
     constructor() {
       super({ node: Private.createHeader() });
       this.title.changed.connect(_ => {
-        this.node!.querySelector('h2')!.textContent = this.title.label;
+        this.node.textContent = this.title.label;
       });
     }
   }
@@ -245,15 +184,11 @@ namespace Private {
    * Create a sidebar header node.
    */
   export function createHeader(): HTMLElement {
-    const header = document.createElement('div');
-    header.classList.add('jp-stack-panel-header');
-
     const title = document.createElement('h2');
 
     title.textContent = '-';
-    title.classList.add('jp-left-truncated');
-    header.appendChild(title);
+    title.classList.add('jp-text-truncated');
 
-    return header;
+    return title;
   }
 }
diff --git a/packages/debugger/src/sources.ts b/packages/debugger/src/sources.ts
index c9f4cb9043ab..16916d6a710c 100644
--- a/packages/debugger/src/sources.ts
+++ b/packages/debugger/src/sources.ts
@@ -2,25 +2,12 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { JupyterFrontEnd } from '@jupyterlab/application';
-
 import { DOMUtils, MainAreaWidget, WidgetTracker } from '@jupyterlab/apputils';
-
-import {
-  CodeEditor,
-  CodeEditorWrapper,
-  IEditorServices
-} from '@jupyterlab/codeeditor';
-
+import { CodeEditorWrapper, IEditorServices } from '@jupyterlab/codeeditor';
 import { IConsoleTracker } from '@jupyterlab/console';
-
 import { IEditorTracker } from '@jupyterlab/fileeditor';
-
 import { INotebookTracker } from '@jupyterlab/notebook';
-
 import { textEditorIcon } from '@jupyterlab/ui-components';
-
-import { each } from '@lumino/algorithm';
-
 import { IDebugger } from './tokens';
 
 /**
@@ -50,7 +37,7 @@ export class DebuggerSources implements IDebugger.ISources {
    *
    * @param params - The editor search parameters.
    */
-  find(params: IDebugger.ISources.FindParams): CodeEditor.IEditor[] {
+  find(params: IDebugger.ISources.FindParams): IDebugger.ISources.IEditor[] {
     return [
       ...this._findInConsoles(params),
       ...this._findInEditors(params),
@@ -74,7 +61,7 @@ export class DebuggerSources implements IDebugger.ISources {
     widget.title.closable = true;
     widget.title.caption = caption;
     widget.title.icon = textEditorIcon;
-    this._shell.add(widget, 'main');
+    this._shell.add(widget, 'main', { type: 'Debugger Sources' });
     void this._readOnlyEditorTracker.add(widget);
   }
 
@@ -85,13 +72,13 @@ export class DebuggerSources implements IDebugger.ISources {
    */
   private _findInNotebooks(
     params: IDebugger.ISources.FindParams
-  ): CodeEditor.IEditor[] {
+  ): IDebugger.ISources.IEditor[] {
     if (!this._notebookTracker) {
       return [];
     }
     const { focus, kernel, path, source } = params;
 
-    const editors: CodeEditor.IEditor[] = [];
+    const editors: IDebugger.ISources.IEditor[] = [];
     this._notebookTracker.forEach(notebookPanel => {
       const sessionContext = notebookPanel.sessionContext;
 
@@ -107,7 +94,7 @@ export class DebuggerSources implements IDebugger.ISources {
       const cells = notebookPanel.content.widgets;
       cells.forEach((cell, i) => {
         // check the event is for the correct cell
-        const code = cell.model.value.text;
+        const code = cell.model.sharedModel.getSource();
         const codeId = this._getCodeId(code, kernel);
         if (!codeId) {
           return;
@@ -118,13 +105,20 @@ export class DebuggerSources implements IDebugger.ISources {
         if (focus) {
           notebook.activeCellIndex = i;
           if (notebook.activeCell) {
-            const node = notebook.activeCell.inputArea.node;
-            const rect = node.getBoundingClientRect();
-            notebook.scrollToPosition(rect.bottom, 45);
+            notebook.scrollToItem(notebook.activeCellIndex).catch(reason => {
+              // no-op
+            });
           }
           this._shell.activateById(notebookPanel.id);
         }
-        editors.push(cell.editor);
+
+        editors.push(
+          Object.freeze({
+            get: () => cell.editor,
+            reveal: () => notebook.scrollToItem(i),
+            src: cell.model.sharedModel
+          })
+        );
       });
     });
     return editors;
@@ -137,13 +131,13 @@ export class DebuggerSources implements IDebugger.ISources {
    */
   private _findInConsoles(
     params: IDebugger.ISources.FindParams
-  ): CodeEditor.IEditor[] {
+  ): IDebugger.ISources.IEditor[] {
     if (!this._consoleTracker) {
       return [];
     }
     const { focus, kernel, path, source } = params;
 
-    const editors: CodeEditor.IEditor[] = [];
+    const editors: IDebugger.ISources.IEditor[] = [];
     this._consoleTracker.forEach(consoleWidget => {
       const sessionContext = consoleWidget.sessionContext;
 
@@ -152,20 +146,29 @@ export class DebuggerSources implements IDebugger.ISources {
       }
 
       const cells = consoleWidget.console.cells;
-      each(cells, cell => {
-        const code = cell.model.value.text;
+      for (const cell of cells) {
+        const code = cell.model.sharedModel.getSource();
         const codeId = this._getCodeId(code, kernel);
         if (!codeId) {
-          return;
+          break;
         }
         if (source !== codeId) {
-          return;
+          break;
         }
-        editors.push(cell.editor);
+
+        editors.push(
+          Object.freeze({
+            get: () => cell.editor,
+            reveal: () =>
+              Promise.resolve(this._shell.activateById(consoleWidget.id)),
+            src: cell.model.sharedModel
+          })
+        );
+
         if (focus) {
           this._shell.activateById(consoleWidget.id);
         }
-      });
+      }
     });
     return editors;
   }
@@ -177,13 +180,13 @@ export class DebuggerSources implements IDebugger.ISources {
    */
   private _findInEditors(
     params: IDebugger.ISources.FindParams
-  ): CodeEditor.IEditor[] {
+  ): IDebugger.ISources.IEditor[] {
     if (!this._editorTracker) {
       return [];
     }
     const { focus, kernel, path, source } = params;
 
-    const editors: CodeEditor.IEditor[] = [];
+    const editors: IDebugger.ISources.IEditor[] = [];
     this._editorTracker.forEach(doc => {
       const fileEditor = doc.content;
       if (path !== fileEditor.context.path) {
@@ -195,7 +198,7 @@ export class DebuggerSources implements IDebugger.ISources {
         return;
       }
 
-      const code = editor.model.value.text;
+      const code = editor.model.sharedModel.getSource();
       const codeId = this._getCodeId(code, kernel);
       if (!codeId) {
         return;
@@ -203,7 +206,14 @@ export class DebuggerSources implements IDebugger.ISources {
       if (source !== codeId) {
         return;
       }
-      editors.push(editor);
+      editors.push(
+        Object.freeze({
+          get: () => editor,
+          reveal: () => Promise.resolve(this._shell.activateById(doc.id)),
+          src: fileEditor.model.sharedModel
+        })
+      );
+
       if (focus) {
         this._shell.activateById(doc.id);
       }
@@ -218,17 +228,17 @@ export class DebuggerSources implements IDebugger.ISources {
    */
   private _findInReadOnlyEditors(
     params: IDebugger.ISources.FindParams
-  ): CodeEditor.IEditor[] {
+  ): IDebugger.ISources.IEditor[] {
     const { focus, kernel, source } = params;
 
-    const editors: CodeEditor.IEditor[] = [];
+    const editors: IDebugger.ISources.IEditor[] = [];
     this._readOnlyEditorTracker.forEach(widget => {
       const editor = widget.content?.editor;
       if (!editor) {
         return;
       }
 
-      const code = editor.model.value.text;
+      const code = editor.model.sharedModel.getSource();
       const codeId = this._getCodeId(code, kernel);
       if (!codeId) {
         return;
@@ -237,7 +247,13 @@ export class DebuggerSources implements IDebugger.ISources {
       if (widget.title.caption !== source && source !== codeId) {
         return;
       }
-      editors.push(editor);
+      editors.push(
+        Object.freeze({
+          get: () => editor,
+          reveal: () => Promise.resolve(this._shell.activateById(widget.id)),
+          src: editor.model.sharedModel
+        })
+      );
       if (focus) {
         this._shell.activateById(widget.id);
       }
diff --git a/packages/debugger/src/svg.d.ts b/packages/debugger/src/svg.d.ts
index d4627e55fbdc..1ecebae240da 100644
--- a/packages/debugger/src/svg.d.ts
+++ b/packages/debugger/src/svg.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 declare module '*.svg' {
   const value: string; // @ts-ignore
   export default value;
diff --git a/packages/debugger/src/tokens.ts b/packages/debugger/src/tokens.ts
index e7cead1b89b4..9db5d2e0efa6 100644
--- a/packages/debugger/src/tokens.ts
+++ b/packages/debugger/src/tokens.ts
@@ -5,13 +5,15 @@ import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
 
 import { KernelMessage, Session } from '@jupyterlab/services';
 
+import { ISharedText } from '@jupyter/ydoc';
+
 import { ReadonlyJSONObject, Token } from '@lumino/coreutils';
 
 import { IDisposable, IObservableDisposable } from '@lumino/disposable';
 
 import { ISignal, Signal } from '@lumino/signaling';
 
-import { Widget } from '@lumino/widgets';
+import { Panel } from '@lumino/widgets';
 
 import { DebugProtocol } from '@vscode/debugprotocol';
 
@@ -32,9 +34,14 @@ export interface IDebugger {
   readonly isStarted: boolean;
 
   /**
-   * Whether the session is pausing for exceptions.
+   * Get debugger config.
+   */
+  readonly config: IDebugger.IConfig;
+
+  /**
+   * A signal emitted when the pause on exception filter changes.
    */
-  readonly isPausingOnExceptions: boolean;
+  readonly pauseOnExceptionChanged: Signal<IDebugger, void>;
 
   /**
    * The debugger service's model.
@@ -62,9 +69,16 @@ export interface IDebugger {
   pauseOnExceptionsIsValid(): boolean;
 
   /**
-   * Handles enabling and disabling of Pause on Exception
+   * Add a filter to pauseOnExceptionsFilter.
+   *
+   * @param exceptionFilter - filter name.
    */
-  pauseOnExceptions(enable: boolean): Promise<void>;
+  pauseOnExceptionsFilter(exceptionFilter: string): Promise<void>;
+
+  /**
+   * Send the pauseOnExceptions' filters to the debugger.
+   */
+  pauseOnExceptions(exceptionFilter: string[]): Promise<void>;
 
   /**
    * Continues the execution of the current thread.
@@ -104,6 +118,14 @@ export interface IDebugger {
     variablesReference: number
   ): Promise<DebugProtocol.Variable[]>;
 
+  /**
+   * Request to set a variable in the global scope.
+   *
+   * @param name The name of the variable.
+   * @param value The value of the variable.
+   */
+  copyToGlobals(name: string): Promise<void>;
+
   /**
    * Request rich representation of a variable.
    *
@@ -122,6 +144,11 @@ export interface IDebugger {
    */
   displayDefinedVariables(): Promise<void>;
 
+  /**
+   * Requests all the loaded modules and display them.
+   */
+  displayModules(): Promise<void>;
+
   /**
    * Request whether debugging is available for the given session connection.
    *
@@ -134,11 +161,6 @@ export interface IDebugger {
    */
   next(): Promise<void>;
 
-  /**
-   * Requests all the loaded modules and display them.
-   */
-  displayModules(): Promise<void>;
-
   /**
    * Restart the debugger.
    * Precondition: isStarted
@@ -233,6 +255,21 @@ export namespace IDebugger {
     path: string;
   };
 
+  /**
+   * The type for a kernel source file.
+   */
+  export type KernelSource = {
+    /**
+     * The name of the source.
+     */
+    name: string;
+
+    /**
+     * The path of the source.
+     */
+    path: string;
+  };
+
   /**
    * Single breakpoint in an editor.
    */
@@ -253,21 +290,6 @@ export namespace IDebugger {
     breakpoints: Map<string, IDebugger.IBreakpoint[]>;
   };
 
-  /**
-   * The type for a kernel source file.
-   */
-  export type KernelSource = {
-    /**
-     * The name of the source.
-     */
-    name: string;
-
-    /**
-     * The path of the source.
-     */
-    path: string;
-  };
-
   /**
    * Debugger file and hashing configuration.
    */
@@ -331,8 +353,8 @@ export namespace IDebugger {
      */
     connection: Session.ISessionConnection | null;
 
-    /*
-     * Returns the initialize response .
+    /**
+     * Returns the initialize response.
      */
     readonly capabilities: DebugProtocol.Capabilities | undefined;
 
@@ -341,11 +363,6 @@ export namespace IDebugger {
      */
     readonly isStarted: boolean;
 
-    /**
-     * Whether the debug session is pausing on exceptions.
-     */
-    pausingOnExceptions: string[];
-
     /**
      * Whether the debug session is pausing on exceptions.
      */
@@ -366,6 +383,18 @@ export namespace IDebugger {
       IDebugger.ISession.Event
     >;
 
+    /**
+     * Get current exception filter.
+     */
+    currentExceptionFilters: string[];
+
+    /**
+     * Whether the debugger is pausing on exception.
+     *
+     * @param filter - Specify a filter
+     */
+    isPausingOnException(filter?: string): boolean;
+
     /**
      * Restore the state of a debug session.
      */
@@ -401,7 +430,7 @@ export namespace IDebugger {
      *
      * @param params - The editor find parameters.
      */
-    find(params: ISources.FindParams): CodeEditor.IEditor[];
+    find(params: ISources.FindParams): ISources.IEditor[];
 
     /**
      * Open a read-only editor in the main area.
@@ -500,7 +529,8 @@ export namespace IDebugger {
       completions: DebugProtocol.CompletionsArguments;
       configurationDone: DebugProtocol.ConfigurationDoneArguments;
       continue: DebugProtocol.ContinueArguments;
-      debugInfo: {};
+      copyToGlobals: ICopyToGlobalsArguments;
+      debugInfo: Record<string, never>;
       disconnect: DebugProtocol.DisconnectArguments;
       dumpCell: IDumpCellArguments;
       evaluate: DebugProtocol.EvaluateArguments;
@@ -508,7 +538,7 @@ export namespace IDebugger {
       goto: DebugProtocol.GotoArguments;
       gotoTargets: DebugProtocol.GotoTargetsArguments;
       initialize: DebugProtocol.InitializeRequestArguments;
-      inspectVariables: {};
+      inspectVariables: Record<string, never>;
       launch: DebugProtocol.LaunchRequestArguments;
       loadedSources: DebugProtocol.LoadedSourcesArguments;
       modules: DebugProtocol.ModulesArguments;
@@ -532,7 +562,7 @@ export namespace IDebugger {
       stepOut: DebugProtocol.StepOutArguments;
       terminate: DebugProtocol.TerminateArguments;
       terminateThreads: DebugProtocol.TerminateThreadsArguments;
-      threads: {};
+      threads: Record<string, never>;
       variables: DebugProtocol.VariablesArguments;
     };
 
@@ -544,6 +574,7 @@ export namespace IDebugger {
       completions: DebugProtocol.CompletionsResponse;
       configurationDone: DebugProtocol.ConfigurationDoneResponse;
       continue: DebugProtocol.ContinueResponse;
+      copyToGlobals: DebugProtocol.SetExpressionResponse;
       debugInfo: IDebugInfoResponse;
       disconnect: DebugProtocol.DisconnectResponse;
       dumpCell: IDumpCellResponse;
@@ -580,6 +611,17 @@ export namespace IDebugger {
       variables: DebugProtocol.VariablesResponse;
     };
 
+    /**
+     * Arguments for CopyToGlobals request.
+     * This is an addition to the Debug Adaptor protocol to support
+     * copying variable from Locals() to Globals() during breakpoint.
+     */
+    export interface ICopyToGlobalsArguments {
+      srcVariableName: string;
+      dstVariableName: string;
+      srcFrameId: number;
+    }
+
     /**
      * List of breakpoints in a source file.
      */
@@ -596,6 +638,10 @@ export namespace IDebugger {
     export interface IDebugInfoResponse extends DebugProtocol.Response {
       body: {
         breakpoints: IDebugInfoBreakpoints[];
+        /**
+         * Whether the kernel supports the 'copyToGlobals' request.
+         */
+        copyToGlobals?: boolean;
         hashMethod: string;
         hashSeed: number;
         isStarted: boolean;
@@ -675,6 +721,13 @@ export namespace IDebugger {
     export interface IInfoReply extends KernelMessage.IInfoReply {
       debugger: boolean;
     }
+
+    /**
+     * An interface for current exception filters.
+     */
+    export interface IExceptionFilter {
+      [kernels: string]: string[];
+    }
   }
 
   /**
@@ -694,27 +747,30 @@ export namespace IDebugger {
   /**
    * Debugger sidebar interface.
    */
-  export interface ISidebar extends Widget {
-    /**
-     * Add item at the end of the sidebar.
-     */
-    addItem(widget: Widget): void;
-
-    /**
-     * Insert item at a specified index.
-     */
-    insertItem(index: number, widget: Widget): void;
-
-    /**
-     * Return all items that were added to sidebar.
-     */
-    readonly items: readonly Widget[];
-  }
+  export interface ISidebar extends Panel {}
 
   /**
    * A utility to find text editors used by the debugger.
    */
   export namespace ISources {
+    /**
+     * Source editor interface
+     */
+    export interface IEditor {
+      /**
+       * Editor getter
+       */
+      get(): CodeEditor.IEditor | null;
+      /**
+       * Reveal editor
+       */
+      reveal(): Promise<void>;
+      /**
+       * Editor source text
+       */
+      src: ISharedText;
+    }
+
     /**
      * Unified parameters for the find method
      */
@@ -856,6 +912,11 @@ export namespace IDebugger {
        */
       hasRichVariableRendering: boolean;
 
+      /**
+       * Whether the kernel supports the copyToGlobals request.
+       */
+      supportCopyToGlobals: boolean;
+
       /**
        * The variables UI model.
        */
@@ -1009,32 +1070,39 @@ export namespace IDebugger {
 /**
  * The visual debugger token.
  */
-export const IDebugger = new Token<IDebugger>('@jupyterlab/debugger:IDebugger');
+export const IDebugger = new Token<IDebugger>(
+  '@jupyterlab/debugger:IDebugger',
+  'A debugger user interface.'
+);
 
 /**
  * The debugger configuration token.
  */
 export const IDebuggerConfig = new Token<IDebugger.IConfig>(
-  '@jupyterlab/debugger:IDebuggerConfig'
+  '@jupyterlab/debugger:IDebuggerConfig',
+  'A service to handle the debugger configuration.'
 );
 
 /**
  * The debugger sources utility token.
  */
 export const IDebuggerSources = new Token<IDebugger.ISources>(
-  '@jupyterlab/debugger:IDebuggerSources'
+  '@jupyterlab/debugger:IDebuggerSources',
+  'A service to display sources in debug mode.'
 );
 
 /**
- * The debugger configuration token.
+ * The debugger sidebar token.
  */
 export const IDebuggerSidebar = new Token<IDebugger.ISidebar>(
-  '@jupyterlab/debugger:IDebuggerSidebar'
+  '@jupyterlab/debugger:IDebuggerSidebar',
+  'A service for the debugger sidebar.'
 );
 
 /**
  * The debugger handler token.
  */
 export const IDebuggerHandler = new Token<IDebugger.IHandler>(
-  '@jupyterlab/debugger:IDebuggerHandler'
+  '@jupyterlab/debugger:IDebuggerHandler',
+  'A service for handling notebook debugger.'
 );
diff --git a/packages/debugger/style/base.css b/packages/debugger/style/base.css
index 6272d11347e5..3492876f3010 100644
--- a/packages/debugger/style/base.css
+++ b/packages/debugger/style/base.css
@@ -6,6 +6,7 @@
 @import './callstack.css';
 @import './editor.css';
 @import './icons.css';
+@import './kernelSources.css';
 @import './sidebar.css';
 @import './sources.css';
 @import './kernelSources.css';
@@ -18,7 +19,11 @@
 }
 
 #jp-debugger .jp-switch-label {
-  margin-right: 0px;
+  margin-right: 0;
+}
+
+.jp-DebuggerBugButton[aria-pressed='true'] path {
+  fill: var(--jp-warn-color0);
 }
 
 .jp-DebuggerBugButton[aria-pressed='true'] path {
diff --git a/packages/debugger/style/breakpoints.css b/packages/debugger/style/breakpoints.css
index 94420084d896..cd60a97ee911 100644
--- a/packages/debugger/style/breakpoints.css
+++ b/packages/debugger/style/breakpoints.css
@@ -6,6 +6,8 @@
 .jp-DebuggerBreakpoints {
   display: flex;
   flex-direction: column;
+  min-height: 50px;
+  padding-top: 3px;
 }
 
 .jp-DebuggerBreakpoints-body {
@@ -53,25 +55,34 @@
   margin-left: auto;
 }
 
-[data-jp-debugger='true'] .CodeMirror-gutter-wrapper::after {
+[data-jp-debugger='true'] .cm-breakpoint-gutter .cm-gutterElement:empty::after {
   content: '●';
   color: var(--jp-error-color1);
   opacity: 0;
-  position: absolute;
-  left: 3px;
-  top: -1px;
 }
 
-[data-jp-debugger='true'].jp-Editor .CodeMirror-gutter-wrapper:hover::after,
+.cm-gutter {
+  cursor: default;
+}
+
+.cm-breakpoint-gutter .cm-gutterElement {
+  color: var(--jp-error-color1);
+  padding-left: 5px;
+  font-size: 20px;
+  position: relative;
+  top: -5px;
+}
+
+[data-jp-debugger='true'].jp-Editor
+  .cm-breakpoint-gutter
+  .cm-gutterElement:empty:hover::after,
 [data-jp-debugger='true']
   .jp-Notebook
   .jp-CodeCell.jp-mod-selected
-  .CodeMirror-gutter-wrapper:hover::after,
-[data-jp-debugger='true'] .jp-Editor .CodeMirror-gutter-wrapper:hover::after {
-  opacity: 0.5;
-}
-
-[data-jp-debugger='true'].jp-DebuggerEditors
-  .CodeMirror-gutter-wrapper:hover::after {
+  .cm-breakpoint-gutter:empty:hover::after,
+[data-jp-debugger='true']
+  .jp-Editor
+  .cm-breakpoint-gutter
+  .cm-gutterElement:empty:hover::after {
   opacity: 0.5;
 }
diff --git a/packages/debugger/style/callstack.css b/packages/debugger/style/callstack.css
index 5859d3e7b888..fc449b438d34 100644
--- a/packages/debugger/style/callstack.css
+++ b/packages/debugger/style/callstack.css
@@ -6,6 +6,8 @@
 .jp-DebuggerCallstack {
   display: flex;
   flex-direction: column;
+  min-height: 50px;
+  padding-top: 3px;
 }
 
 .jp-DebuggerCallstack-body {
@@ -21,12 +23,12 @@
   font-size: var(--jp-ui-font-size1);
 }
 
-.jp-DebuggerCallstack-body ul li {
+.jp-DebuggerCallstack-body li {
   padding: 5px;
   padding-left: 8px;
 }
 
-.jp-DebuggerCallstack-body ul li.selected {
+.jp-DebuggerCallstack-body li.selected {
   color: white;
   background: var(--jp-brand-color1);
 }
diff --git a/packages/debugger/style/icons.css b/packages/debugger/style/icons.css
index 9b9323075a0f..31e066dd9cf4 100644
--- a/packages/debugger/style/icons.css
+++ b/packages/debugger/style/icons.css
@@ -3,8 +3,8 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-button.jp-Button.bp3-button.bp3-minimal.jp-TreeView.jp-TreeView,
-button.jp-Button.bp3-button.bp3-minimal.jp-TreeView.jp-TableView {
+button.jp-Button.jp-mod-minimal.jp-TreeView.jp-TreeView,
+button.jp-Button.jp-mod-minimal.jp-TreeView.jp-TableView {
   display: flex;
   align-items: center;
   -webkit-transition: 0.4s;
@@ -12,20 +12,13 @@ button.jp-Button.bp3-button.bp3-minimal.jp-TreeView.jp-TableView {
   width: 35px;
 }
 
-button.jp-Button.bp3-button.bp3-minimal.jp-TreeView:hover,
-button.jp-Button.bp3-button.bp3-minimal.jp-TableView:hover,
-button.jp-Button.jp-mod-minimal.jp-PauseOnExceptions:hover {
-  cursor: pointer;
-  background-color: var(--jp-layout-color1);
-}
-
-.jp-ViewModeSelected .jp-Button.bp3-button.bp3-minimal.jp-Button,
-.jp-Button.bp3-button.bp3-minimal.jp-PauseOnExceptions.lm-mod-toggled {
+.jp-ViewModeSelected .jp-Button,
+.jp-PauseOnExceptions.lm-mod-toggled {
   background-color: var(--jp-inverse-layout-color3);
 }
 
-.jp-ViewModeSelected .jp-Button.bp3-button.bp3-minimal.jp-Button:hover,
-.jp-Button.bp3-button.bp3-minimal.jp-PauseOnExceptions.lm-mod-toggled:hover {
+.jp-ViewModeSelected .jp-Button:hover,
+.jp-PauseOnExceptions.lm-mod-toggled:hover {
   background-color: var(--jp-inverse-layout-color4);
 }
 
diff --git a/packages/debugger/style/icons/arrow-collapse.svg b/packages/debugger/style/icons/arrow-collapse.svg
index 5dcb87c772c2..ba7bd1c83c71 100644
--- a/packages/debugger/style/icons/arrow-collapse.svg
+++ b/packages/debugger/style/icons/arrow-collapse.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#646465" d="M6 4v8l4-4-4-4zm1 2.414l1.586 1.586-1.586 1.586v-3.172z"/></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#646465" d="M6 4v8l4-4-4-4zm1 2.414l1.586 1.586-1.586 1.586v-3.172z"/></svg>
diff --git a/packages/debugger/style/icons/arrow-expand.svg b/packages/debugger/style/icons/arrow-expand.svg
index e55ccd923e52..099207713dc3 100644
--- a/packages/debugger/style/icons/arrow-expand.svg
+++ b/packages/debugger/style/icons/arrow-expand.svg
@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#646465" d="M11 10.07h-5.656l5.656-5.656v5.656z"/></svg>
\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path fill="#646465" d="M11 10.07h-5.656l5.656-5.656v5.656z"/></svg>
diff --git a/packages/debugger/style/icons/exceptions.svg b/packages/debugger/style/icons/exceptions.svg
new file mode 100644
index 000000000000..59b07b892fe7
--- /dev/null
+++ b/packages/debugger/style/icons/exceptions.svg
@@ -0,0 +1,10 @@
+<svg height="24" width="24" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
+  <g class="jp-icon3" fill="#616161" transform="matrix(1.1999396,0,0,1.3858273,-2.3726971,-4.6347192)">
+    <path
+      d="M 12.023438,0.30859375 11.158203,1.8085937 -1.2382812,23.285156 l 26.5292972,-0.002 z m 0.002,3.99999995 9.800781,16.9746093 -19.6015626,0.002 z"
+      transform="matrix(0.72509832,0,0,0.7247701,3.2918397,3.480876)"
+    />
+    <path d="m 11.144475,9.117095 h 1.666751 v 7.215906 h -1.666751 z" />
+    <path d="m 11.144475,17.054592 h 1.666751 v 1.443181 h -1.666751 z" />
+  </g>
+</svg>
diff --git a/packages/debugger/style/index.css b/packages/debugger/style/index.css
index 84eabe55b6ce..c5bbb259f63c 100644
--- a/packages/debugger/style/index.css
+++ b/packages/debugger/style/index.css
@@ -8,13 +8,12 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/cells/style/index.css');
 @import url('~@jupyterlab/console/style/index.css');
 @import url('~@jupyterlab/fileeditor/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/debugger/style/index.js b/packages/debugger/style/index.js
index c359d50d5d34..950c9987f393 100644
--- a/packages/debugger/style/index.js
+++ b/packages/debugger/style/index.js
@@ -8,10 +8,10 @@ import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/cells/style/index.js';
 import '@jupyterlab/console/style/index.js';
 import '@jupyterlab/fileeditor/style/index.js';
diff --git a/packages/debugger/style/kernelSources.css b/packages/debugger/style/kernelSources.css
index 8b56d79cfca7..ac202c1ec012 100644
--- a/packages/debugger/style/kernelSources.css
+++ b/packages/debugger/style/kernelSources.css
@@ -22,17 +22,8 @@
   overflow-y: auto;
 }
 
-.jp-DebuggerKernelSources-header > div > span {
-  overflow: hidden;
-  cursor: pointer;
-  text-overflow: ellipsis;
-  white-space: nowrap;
-  font-size: var(--jp-ui-font-size0);
-  color: var(--jp-ui-font-color1);
-}
-
 .jp-DebuggerKernelSource-filterBox {
-  padding: 0px;
+  padding: 0;
   flex: 0 0 auto;
   margin: 0;
   position: sticky;
diff --git a/packages/debugger/style/sidebar.css b/packages/debugger/style/sidebar.css
index cfef515a6e40..ca3df1505037 100644
--- a/packages/debugger/style/sidebar.css
+++ b/packages/debugger/style/sidebar.css
@@ -3,57 +3,10 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-.jp-DebuggerSidebar {
-  --jp-debugger-header-height: 24px;
-}
-
-.jp-DebuggerSidebar {
-  color: var(--jp-ui-font-color1);
-  background: var(--jp-layout-color1);
-  font-size: var(--jp-ui-font-size1);
-}
-
-.jp-DebuggerSidebar .p-SplitPanel-child {
-  z-index: auto;
-}
-
-.jp-DebuggerSidebar .jp-DebuggerSidebar-body {
-  height: calc(100% - var(--jp-debugger-header-height));
-}
-
-.jp-DebuggerSidebar .jp-stack-panel-header {
-  border-bottom: solid var(--jp-border-width) var(--jp-border-color1);
-  box-shadow: var(--jp-toolbar-box-shadow);
-  display: flex;
-  flex-direction: row;
-  align-items: center;
-  min-height: 24px;
-  height: var(--jp-debugger-header-height);
-}
-
-.jp-DebuggerSidebar > .jp-stack-panel-header {
-  background-color: var(--jp-layout-color1);
-}
-
-.jp-DebuggerSidebar .jp-stack-panel-header h2 {
-  text-transform: uppercase;
+.jp-SidePanel-header > h2 {
+  /* Set font-size to override default h2 sizing but keeping default --jp-ui-font-size0 */
+  font-size: 100%;
   font-weight: 600;
-  font-size: var(--jp-ui-font-size0);
-  color: var(--jp-ui-font-color1);
-  padding-left: 8px;
-  padding-right: 4px;
-}
-
-.jp-DebuggerSidebar-body .jp-stack-panel-header {
-  border-top: solid var(--jp-border-width) var(--jp-border-color1);
-  background-color: var(--jp-layout-color2);
-}
-
-.jp-DebuggerSidebar-body .jp-DebuggerVariables .jp-stack-panel-header {
-  border-top: none;
-}
-
-.jp-DebuggerSidebar-body .jp-Toolbar {
-  background: var(--jp-layout-color2);
-  box-shadow: none;
+  margin: 0 auto 0 0;
+  padding: 4px 10px;
 }
diff --git a/packages/debugger/style/sources.css b/packages/debugger/style/sources.css
index 82e15a067411..8c851f011941 100644
--- a/packages/debugger/style/sources.css
+++ b/packages/debugger/style/sources.css
@@ -3,6 +3,11 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+.jp-DebuggerSources {
+  min-height: 50px;
+  margin-top: 3px;
+}
+
 [data-jp-debugger='true'].jp-Editor .jp-mod-readOnly {
   background: var(--jp-layout-color2);
   height: 100%;
@@ -13,10 +18,10 @@
 }
 
 .jp-DebuggerSources-body {
-  height: calc(100% - var(--jp-statusbar-height));
+  height: 100%;
 }
 
-.jp-DebuggerSources-header > div > span {
+.jp-DebuggerSources-header-path {
   overflow: hidden;
   cursor: pointer;
   text-overflow: ellipsis;
diff --git a/packages/debugger/style/variables.css b/packages/debugger/style/variables.css
index 841cf8155fcf..7a6d7ebe35e2 100644
--- a/packages/debugger/style/variables.css
+++ b/packages/debugger/style/variables.css
@@ -2,10 +2,11 @@
 | Copyright (c) Jupyter Development Team.
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
-
 .jp-DebuggerVariables {
   display: flex;
   flex-direction: column;
+  min-height: 50px;
+  padding-top: 3px;
 }
 
 .jp-DebuggerVariables-body {
@@ -14,63 +15,99 @@
   flex: 1 1 auto;
   min-height: 24px;
   overflow: auto;
+
+  /* For absolute positioning of jp-DebuggerVariables-buttons. */
+  position: relative;
 }
 
-.jp-DebuggerVariables-body ul {
+.jp-DebuggerVariables-branch {
   list-style: none;
   margin: 0;
   padding: 0;
 }
 
-.jp-DebuggerVariables-body > ul {
+.jp-DebuggerVariables-body
+  .jp-DebuggerVariables-branch
+  .jp-DebuggerVariables-branch {
+  grid-area: nested;
+}
+
+.jp-DebuggerVariables-body > .jp-DebuggerVariables-branch {
   padding-top: 0.1em;
 }
 
-.jp-DebuggerVariables-body ul li {
-  padding: 5px 0 0 0;
+.jp-DebuggerVariables-branch li {
+  padding: 3px 0;
   cursor: pointer;
   color: var(--jp-content-font-color1);
-  align-items: center;
+  display: grid;
+  grid-template:
+    'collapser name detail'
+    'nested nested nested';
+  grid-template-columns: max-content max-content 1fr;
 }
 
-.jp-DebuggerVariables-body ul li:hover .jp-DebuggerVariables-renderVariable {
-  display: inline-block;
+.jp-DebuggerVariables-branch li:not(:has(li:hover)):hover {
+  background: var(--jp-layout-color2);
 }
 
-.jp-DebuggerVariables-body .jp-DebuggerVariables-hspacer {
-  flex: 1 1 auto;
+.jp-DebuggerVariables-collapser {
+  width: 16px;
+  grid-area: collapser;
+  transform: rotate(-90deg);
+  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
+}
+
+.jp-DebuggerVariables-collapser.jp-mod-expanded {
+  transform: rotate(0);
+}
+
+.jp-DebuggerVariables-buttons {
+  position: absolute;
+  top: 0;
+  right: 8px;
+  margin-top: 1px;
+}
+
+.jp-DebuggerVariables-name {
+  color: var(--jp-mirror-editor-attribute-color);
+  grid-area: name;
+}
+
+.jp-DebuggerVariables-name::after {
+  content: ':';
+  margin-right: 5px;
 }
 
-.jp-DebuggerVariables-body .jp-DebuggerVariables-renderVariable {
-  flex: 0 0 auto;
+.jp-DebuggerVariables-detail {
+  /* detail contains value for primitive types or name of the type otherwise */
+  color: var(--jp-mirror-editor-string-color);
+}
+
+.jp-DebuggerVariables-renderVariable {
   border: none;
   background: none;
   cursor: pointer;
-  display: none;
-  padding: 0px 8px;
+  transform-origin: center center;
+  transition: transform 0.2s cubic-bezier(0.4, 0, 1, 1);
 }
 
-.jp-DebuggerVariables-body .jp-DebuggerVariables-renderVariable:active {
-  transform: scale(1.272) translateX(-4px);
-  overflow: hidden;
+.jp-DebuggerVariables-renderVariable:active {
+  transform: scale(1.35);
 }
 
-.jp-DebuggerVariables-body .jp-DebuggerVariables-renderVariable:hover {
+.jp-DebuggerVariables-renderVariable:hover {
   background-color: var(--jp-layout-color2);
 }
 
-.jp-DebuggerVariables-body .jp-DebuggerVariables-renderVariable:disabled {
+.jp-DebuggerVariables-renderVariable:disabled {
   cursor: default;
 }
 
-.jp-DebuggerVariables-body ul li > ul {
+.jp-DebuggerVariables-branch li > .jp-DebuggerVariables-branch {
   margin-left: 12px;
 }
 
-.jp-DebuggerVariables .jp-stack-panel-header .jp-Toolbar {
-  margin-left: auto;
-}
-
 .jp-DebuggerVariables-grid {
   flex: 1 1 auto;
 }
@@ -83,8 +120,8 @@
   visibility: hidden;
   z-index: -999;
   position: absolute;
-  left: -999;
-  top: -999;
+  left: -999px;
+  top: -999px;
 }
 
 .jp-DebuggerVariables-colorPalette .jp-mod-void {
diff --git a/packages/debugger/test/debugger.spec.ts b/packages/debugger/test/debugger.spec.ts
index e137f64cbcdf..b237e47e600b 100644
--- a/packages/debugger/test/debugger.spec.ts
+++ b/packages/debugger/test/debugger.spec.ts
@@ -7,18 +7,17 @@ import { CodeEditorWrapper } from '@jupyterlab/codeeditor';
 
 import {
   CodeMirrorEditorFactory,
-  CodeMirrorMimeTypeService
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  ybinding
 } from '@jupyterlab/codemirror';
 
 import { KernelSpecManager, Session } from '@jupyterlab/services';
 
-import {
-  createSession,
-  JupyterServer,
-  signalToPromise
-} from '@jupyterlab/testutils';
+import { createSession } from '@jupyterlab/docregistry/lib/testutils';
 
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer, signalToPromise } from '@jupyterlab/testing';
 
 import { CommandRegistry } from '@lumino/commands';
 
@@ -36,21 +35,14 @@ import { DebuggerModel } from '../src/model';
 
 import { SourcesBody } from '../src/panels/sources/body';
 
-import { SourcesHeader } from '../src/panels/sources/header';
-
+import { IYText } from '@jupyter/ydoc';
 import { IDebugger } from '../src/tokens';
 
-/**
- * A test sidebar.
- */
-class TestSidebar extends Debugger.Sidebar {}
-
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -61,8 +53,27 @@ describe('Debugger', () => {
   const config = new Debugger.Config();
   const service = new DebuggerService({ specsManager, config });
   const registry = new CommandRegistry();
-  const factoryService = new CodeMirrorEditorFactory();
-  const mimeTypeService = new CodeMirrorMimeTypeService();
+  const languages = new EditorLanguageRegistry();
+  EditorLanguageRegistry.getDefaultLanguages()
+    .filter(lang => ['Python'].includes(lang.name))
+    .forEach(lang => {
+      languages.addLanguage(lang);
+    });
+  const extensions = new EditorExtensionRegistry();
+  EditorExtensionRegistry.getDefaultExtensions()
+    .filter(ext => ['lineNumbers'].includes(ext.name))
+    .forEach(ext => extensions.addExtension(ext));
+  extensions.addExtension({
+    name: 'binding',
+    factory: ({ model }) => {
+      const m = model.sharedModel as IYText;
+      return EditorExtensionRegistry.createImmutableExtension(
+        ybinding({ ytext: m.ysource })
+      );
+    }
+  });
+  const factoryService = new CodeMirrorEditorFactory({ extensions, languages });
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
   const lines = [3, 5];
   const code = [
     'i = 0',
@@ -77,7 +88,7 @@ describe('Debugger', () => {
   let session: Debugger.Session;
   let path: string;
   let connection: Session.ISessionConnection;
-  let sidebar: TestSidebar;
+  let sidebar: Debugger.Sidebar;
 
   beforeAll(async () => {
     connection = await createSession({
@@ -87,10 +98,10 @@ describe('Debugger', () => {
     });
     await connection.changeKernel({ name: 'python3' });
 
-    session = new Debugger.Session({ connection });
+    session = new Debugger.Session({ connection, config });
     service.session = session;
 
-    sidebar = new TestSidebar({
+    sidebar = new Debugger.Sidebar({
       service,
       callstackCommands: {
         registry,
@@ -103,7 +114,7 @@ describe('Debugger', () => {
       },
       breakpointsCommands: {
         registry,
-        pause: ''
+        pauseOnExceptions: ''
       },
       editorServices: {
         factoryService,
@@ -156,14 +167,33 @@ describe('Debugger', () => {
   });
 
   describe('Panel', () => {
+    let toolbarList: any;
+    beforeEach(() => {
+      toolbarList = sidebar.content.node.querySelectorAll(
+        '.jp-AccordionPanel-title'
+      );
+    });
+    it('should have 5 child widgets', () => {
+      expect(sidebar.widgets.length).toBe(5);
+    });
+
+    it('should have 5 toolbars', () => {
+      expect(toolbarList.length).toBe(5);
+    });
     describe('Variable toolbar', () => {
       let toolbar: Element;
       beforeEach(() => {
-        toolbar = sidebar.variables.node;
+        toolbar = toolbarList.item(0);
+      });
+      it('should have expanding icon', () => {
+        const title = toolbar.querySelectorAll(
+          '.lm-AccordionPanel-titleCollapser'
+        );
+        expect(title[0].innerHTML).toContain('ui-components:caret-down');
       });
       it('should have title', () => {
         const title = toolbar.querySelectorAll(
-          'div.jp-stack-panel-header > h2'
+          'span.lm-AccordionPanel-titleLabel'
         );
         expect(title.length).toBe(1);
         expect(title[0].innerHTML).toContain('Variables');
@@ -178,13 +208,18 @@ describe('Debugger', () => {
     describe('Callstack toolbar', () => {
       let toolbar: Element;
       beforeEach(() => {
-        toolbar = sidebar.callstack.node;
+        toolbar = toolbarList.item(1);
+      });
+      it('should have expanding icon', () => {
+        const title = toolbar.querySelectorAll(
+          '.lm-AccordionPanel-titleCollapser'
+        );
+        expect(title[0].innerHTML).toContain('ui-components:caret-down');
       });
       it('should have title', () => {
         const title = toolbar.querySelectorAll(
-          'div.jp-stack-panel-header > h2'
+          'span.lm-AccordionPanel-titleLabel'
         );
-        console;
         expect(title.length).toBe(1);
         expect(title[0].innerHTML).toContain('Callstack');
       });
@@ -196,11 +231,17 @@ describe('Debugger', () => {
     describe('Breakpoints toolbar', () => {
       let toolbar: Element;
       beforeEach(() => {
-        toolbar = sidebar.breakpoints.node;
+        toolbar = toolbarList.item(2);
+      });
+      it('should have expanding icon', () => {
+        const title = toolbar.querySelectorAll(
+          '.lm-AccordionPanel-titleCollapser'
+        );
+        expect(title[0].innerHTML).toContain('ui-components:caret-down');
       });
       it('should have title', () => {
         const title = toolbar.querySelectorAll(
-          'div.jp-stack-panel-header > h2'
+          'span.lm-AccordionPanel-titleLabel'
         );
         expect(title.length).toBe(1);
         expect(title[0].innerHTML).toContain('Breakpoints');
@@ -213,11 +254,17 @@ describe('Debugger', () => {
     describe('Source toolbar', () => {
       let toolbar: Element;
       beforeEach(() => {
-        toolbar = sidebar.sources.node;
+        toolbar = toolbarList.item(3);
+      });
+      it('should have expanding icon', () => {
+        const title = toolbar.querySelectorAll(
+          '.lm-AccordionPanel-titleCollapser'
+        );
+        expect(title[0].innerHTML).toContain('ui-components:caret-down');
       });
       it('should have title', () => {
         const title = toolbar.querySelectorAll(
-          'div.jp-stack-panel-header > h2'
+          'span.lm-AccordionPanel-titleLabel'
         );
         expect(title.length).toBe(1);
         expect(title[0].innerHTML).toContain('Source');
@@ -231,26 +278,14 @@ describe('Debugger', () => {
   });
 
   describe('#callstack', () => {
-    it('should have a header and a body', () => {
-      expect(sidebar.callstack.widgets.length).toEqual(2);
+    it('should have a body', () => {
+      expect(sidebar.callstack.widgets.length).toEqual(1);
     });
 
     it('should have the jp-DebuggerCallstack class', () => {
       expect(sidebar.callstack.hasClass('jp-DebuggerCallstack')).toBe(true);
     });
 
-    it('should have the debug buttons', () => {
-      const node = sidebar.callstack.node;
-      const items = node.querySelectorAll('button');
-
-      expect(items.length).toEqual(6);
-      items.forEach(item => {
-        expect(Array.from(items[0].classList)).toEqual(
-          expect.arrayContaining(['jp-ToolbarButtonComponent'])
-        );
-      });
-    });
-
     it('should display the stack frames', () => {
       const node = sidebar.callstack.node;
       const items = node.querySelectorAll('.jp-DebuggerCallstack-body li');
@@ -331,22 +366,21 @@ describe('Debugger', () => {
   });
 
   describe('#sources', () => {
-    it('should have a header and a body', () => {
-      expect(sidebar.sources.widgets.length).toEqual(2);
+    it('should have a body', () => {
+      expect(sidebar.sources.widgets.length).toEqual(1);
     });
 
     it('should display the source path in the header', () => {
-      const body = sidebar.sources.widgets[0] as SourcesHeader;
-      const children = toArray(body.children());
-      const sourcePath = children[2].node.querySelector('span');
-      expect(sourcePath!.innerHTML).toEqual(path);
+      const header = sidebar.sources.toolbar;
+      const pathWidget = header.node.innerHTML;
+      expect(pathWidget).toContain(path);
     });
 
     it('should display the source code in the body', () => {
-      const body = sidebar.sources.widgets[1] as SourcesBody;
-      const children = toArray(body.children());
+      const body = sidebar.sources.widgets[0] as SourcesBody;
+      const children = Array.from(body.children());
       const editor = children[0] as CodeEditorWrapper;
-      expect(editor.model.value.text).toEqual(code);
+      expect(editor.model.sharedModel.getSource()).toEqual(code);
     });
   });
 });
diff --git a/packages/debugger/test/service.spec.ts b/packages/debugger/test/service.spec.ts
index c7e792289dd1..b3609740aa1d 100644
--- a/packages/debugger/test/service.spec.ts
+++ b/packages/debugger/test/service.spec.ts
@@ -3,11 +3,9 @@
 
 import { KernelSpec, KernelSpecManager, Session } from '@jupyterlab/services';
 
-import {
-  createSession,
-  JupyterServer,
-  signalToPromise
-} from '@jupyterlab/testutils';
+import { createSession } from '@jupyterlab/docregistry/lib/testutils';
+
+import { JupyterServer, signalToPromise } from '@jupyterlab/testing';
 
 import { JSONExt, UUID } from '@lumino/coreutils';
 
@@ -37,9 +35,8 @@ class TestKernelSpecManager extends KernelSpecManager {
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -97,8 +94,8 @@ describe('DebuggerService', () => {
       path: UUID.uuid4()
     });
     await connection.changeKernel({ name: 'python3' });
-    session = new Debugger.Session({ connection });
     config = new Debugger.Config();
+    session = new Debugger.Session({ connection, config });
     service = new Debugger.Service({ specsManager, config });
   });
 
diff --git a/packages/debugger/test/session.spec.ts b/packages/debugger/test/session.spec.ts
index f9d2ca62062d..802ae2c300a5 100644
--- a/packages/debugger/test/session.spec.ts
+++ b/packages/debugger/test/session.spec.ts
@@ -3,11 +3,9 @@
 
 import { Session } from '@jupyterlab/services';
 
-import {
-  createSession,
-  JupyterServer,
-  signalToPromises
-} from '@jupyterlab/testutils';
+import { createSession } from '@jupyterlab/docregistry/lib/testutils';
+
+import { JupyterServer, signalToPromises } from '@jupyterlab/testing';
 
 import { find } from '@lumino/algorithm';
 
@@ -22,9 +20,8 @@ import { IDebugger } from '../src/tokens';
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -32,9 +29,11 @@ afterAll(async () => {
 
 describe('Debugger.Session', () => {
   let connection: Session.ISessionConnection;
+  let config: IDebugger.IConfig;
 
   beforeEach(async () => {
     const path = UUID.uuid4();
+    config = new Debugger.Config();
     connection = await createSession({
       name: '',
       type: 'test',
@@ -50,7 +49,8 @@ describe('Debugger.Session', () => {
   describe('#isDisposed', () => {
     it('should return whether the object is disposed', () => {
       const debugSession = new Debugger.Session({
-        connection
+        connection,
+        config
       });
       expect(debugSession.isDisposed).toEqual(false);
       debugSession.dispose();
@@ -61,7 +61,8 @@ describe('Debugger.Session', () => {
   describe('#eventMessage', () => {
     it('should be emitted when sending debug messages', async () => {
       const debugSession = new Debugger.Session({
-        connection
+        connection,
+        config
       });
       let events: string[] = [];
       debugSession.eventMessage.connect((sender, event) => {
@@ -78,7 +79,8 @@ describe('Debugger.Session', () => {
   describe('#sendRequest success', () => {
     it('should send debug messages to the kernel', async () => {
       const debugSession = new Debugger.Session({
-        connection
+        connection,
+        config
       });
       await debugSession.start();
       const code = 'i=0\ni+=1\ni+=1';
@@ -93,7 +95,8 @@ describe('Debugger.Session', () => {
   describe('#sendRequest failure', () => {
     it('should handle replies with success false', async () => {
       const debugSession = new Debugger.Session({
-        connection
+        connection,
+        config
       });
       await debugSession.start();
       const reply = await debugSession.sendRequest('evaluate', {
@@ -127,11 +130,13 @@ describe('protocol', () => {
   ];
 
   let connection: Session.ISessionConnection;
+  let config: IDebugger.IConfig;
   let debugSession: Debugger.Session;
   let threadId = 1;
 
   beforeEach(async () => {
     const path = UUID.uuid4();
+    config = new Debugger.Config();
     connection = await createSession({
       name: '',
       type: 'test',
@@ -139,7 +144,8 @@ describe('protocol', () => {
     });
     await connection.changeKernel({ name: 'python3' });
     debugSession = new Debugger.Session({
-      connection
+      connection,
+      config
     });
     await debugSession.start();
 
@@ -152,11 +158,12 @@ describe('protocol', () => {
             threadId = msg.body.threadId;
             break;
           }
-          case 'stopped':
+          case 'stopped': {
             const msg = event as DebugProtocol.StoppedEvent;
             threadId = msg.body.threadId!;
             stoppedFuture.resolve();
             break;
+          }
           default:
             break;
         }
@@ -178,14 +185,14 @@ describe('protocol', () => {
 
     // wait for the first stopped event
     await stoppedFuture.promise;
-  });
+  }, 30000);
 
   afterEach(async () => {
     await debugSession.stop();
     debugSession.dispose();
     await connection.shutdown();
     connection.dispose();
-  });
+  }, 30000);
 
   describe('#debugInfo', () => {
     it('should return the state of the current debug session', async () => {
diff --git a/packages/debugger/test/utils.ts b/packages/debugger/test/utils.ts
index 0e02fd03a1c3..8e103f091371 100644
--- a/packages/debugger/test/utils.ts
+++ b/packages/debugger/test/utils.ts
@@ -1,6 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-// Utils from: https://github.com/jupyterlab/jupyterlab/blob/b1e2b83047421bf7196bec5f2a94d0616dcb2329/packages/services/test/utils.ts
+
+// Utils inspired by: packages/services/test/utils.ts
 
 import { ServerConnection } from '@jupyterlab/services';
 
@@ -58,6 +59,7 @@ export interface IService {
  * @param status The status code for the response.
  * @param body The body for the response.
  */
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function handleRequest(item: IService, status: number, body: any): void {
   // Store the existing fetch function.
   const oldFetch = item.serverSettings.fetch;
diff --git a/packages/debugger/tsconfig.test.json b/packages/debugger/tsconfig.test.json
index 3f38ce3b46a7..700450d50014 100644
--- a/packages/debugger/tsconfig.test.json
+++ b/packages/debugger/tsconfig.test.json
@@ -51,52 +51,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../application"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../console"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/docmanager-extension/package.json b/packages/docmanager-extension/package.json
index 026526209630..f514b2c74f80 100644
--- a/packages/docmanager-extension/package.json
+++ b/packages/docmanager-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/docmanager-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Document Manager Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,29 +38,28 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docprovider": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/docmanager-extension/schema/plugin.json b/packages/docmanager-extension/schema/plugin.json
index f2fa1c6f3f7e..eb80613446cd 100644
--- a/packages/docmanager-extension/schema/plugin.json
+++ b/packages/docmanager-extension/schema/plugin.json
@@ -44,6 +44,10 @@
           {
             "command": "docmanager:rename",
             "rank": 5
+          },
+          {
+            "command": "docmanager:duplicate",
+            "rank": 5
           }
         ]
       },
@@ -58,10 +62,6 @@
             "command": "docmanager:toggle-autosave",
             "rank": 4
           },
-          {
-            "command": "docmanager:toggle-name-file-on-save",
-            "rank": 4
-          },
           {
             "type": "separator",
             "rank": 4
@@ -76,19 +76,24 @@
         "rank": 20
       },
       {
-        "command": "docmanager:delete",
+        "command": "docmanager:duplicate",
         "selector": "[data-type=\"document-title\"]",
         "rank": 21
       },
       {
-        "command": "docmanager:clone",
+        "command": "docmanager:delete",
         "selector": "[data-type=\"document-title\"]",
         "rank": 22
       },
       {
-        "command": "docmanager:show-in-file-browser",
+        "command": "docmanager:clone",
         "selector": "[data-type=\"document-title\"]",
         "rank": 23
+      },
+      {
+        "command": "docmanager:show-in-file-browser",
+        "selector": "[data-type=\"document-title\"]",
+        "rank": 24
       }
     ]
   },
diff --git a/packages/docmanager-extension/src/index.tsx b/packages/docmanager-extension/src/index.tsx
index db01d2a4a4e3..686965f09755 100644
--- a/packages/docmanager-extension/src/index.tsx
+++ b/packages/docmanager-extension/src/index.tsx
@@ -9,7 +9,8 @@ import {
   ILabShell,
   ILabStatus,
   JupyterFrontEnd,
-  JupyterFrontEndPlugin
+  JupyterFrontEndPlugin,
+  JupyterLab
 } from '@jupyterlab/application';
 import {
   addCommandToolbarButtonClass,
@@ -19,6 +20,7 @@ import {
   InputDialog,
   ISessionContextDialogs,
   ReactWidget,
+  SessionContextDialogs,
   showDialog,
   showErrorMessage,
   UseSignal
@@ -27,22 +29,26 @@ import { IChangedArgs, PathExt, Time } from '@jupyterlab/coreutils';
 import {
   DocumentManager,
   IDocumentManager,
+  IDocumentWidgetOpener,
   PathStatus,
   renameDialog,
   SavingStatus
 } from '@jupyterlab/docmanager';
-import { IDocumentProviderFactory } from '@jupyterlab/docprovider';
 import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
 import { Contents, Kernel } from '@jupyterlab/services';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStatusBar } from '@jupyterlab/statusbar';
-import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
 import { saveIcon } from '@jupyterlab/ui-components';
-import { each, map, some, toArray } from '@lumino/algorithm';
+import { some } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import { JSONExt } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
-import { ISignal } from '@lumino/signaling';
+import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
 
@@ -66,6 +72,8 @@ namespace CommandIDs {
 
   export const del = 'docmanager:delete';
 
+  export const duplicate = 'docmanager:duplicate';
+
   export const restoreCheckpoint = 'docmanager:restore-checkpoint';
 
   export const save = 'docmanager:save';
@@ -87,34 +95,18 @@ namespace CommandIDs {
 const docManagerPluginId = '@jupyterlab/docmanager-extension:plugin';
 
 /**
- * The default document manager provider.
+ * A plugin to open documents in the main area.
+ *
  */
-const docManagerPlugin: JupyterFrontEndPlugin<IDocumentManager> = {
-  id: docManagerPluginId,
-  provides: IDocumentManager,
-  requires: [ISettingRegistry, ITranslator],
-  optional: [
-    ILabStatus,
-    ICommandPalette,
-    ILabShell,
-    ISessionContextDialogs,
-    IDocumentProviderFactory
-  ],
-  activate: (
-    app: JupyterFrontEnd,
-    settingRegistry: ISettingRegistry,
-    translator: ITranslator,
-    status: ILabStatus | null,
-    palette: ICommandPalette | null,
-    labShell: ILabShell | null,
-    sessionDialogs: ISessionContextDialogs | null,
-    docProviderFactory: IDocumentProviderFactory | null
-  ): IDocumentManager => {
-    const trans = translator.load('jupyterlab');
-    const manager = app.serviceManager;
-    const contexts = new WeakSet<DocumentRegistry.Context>();
-    const opener: DocumentManager.IWidgetOpener = {
-      open: (widget, options) => {
+const openerPlugin: JupyterFrontEndPlugin<IDocumentWidgetOpener> = {
+  id: '@jupyterlab/docmanager-extension:opener',
+  description: 'Provides the widget opener.',
+  autoStart: true,
+  provides: IDocumentWidgetOpener,
+  activate: (app: JupyterFrontEnd) => {
+    const { shell } = app;
+    return new (class {
+      open(widget: IDocumentWidget, options?: DocumentRegistry.IOpenOptions) {
         if (!widget.id) {
           widget.id = `document-manager-${++Private.id}`;
         }
@@ -123,39 +115,120 @@ const docManagerPlugin: JupyterFrontEndPlugin<IDocumentManager> = {
           ...widget.title.dataset
         };
         if (!widget.isAttached) {
-          app.shell.add(widget, 'main', options || {});
+          shell.add(widget, 'main', options || {});
         }
-        app.shell.activateById(widget.id);
+        shell.activateById(widget.id);
+        this._opened.emit(widget);
+      }
 
-        // Handle dirty state for open documents.
-        const context = docManager.contextForWidget(widget);
-        if (context && !contexts.has(context)) {
-          if (status) {
-            handleContext(status, context);
-          }
-          contexts.add(context);
+      get opened() {
+        return this._opened;
+      }
+
+      private _opened = new Signal<this, IDocumentWidget>(this);
+    })();
+  }
+};
+
+/**
+ * A plugin to handle dirty states for open documents.
+ */
+const contextsPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/docmanager-extension:contexts',
+  description: 'Adds the handling of opened documents dirty state.',
+  autoStart: true,
+  requires: [IDocumentManager, IDocumentWidgetOpener],
+  optional: [ILabStatus],
+  activate: (
+    app: JupyterFrontEnd,
+    docManager: IDocumentManager,
+    widgetOpener: IDocumentWidgetOpener,
+    status: ILabStatus
+  ) => {
+    const contexts = new WeakSet<DocumentRegistry.Context>();
+    widgetOpener.opened.connect((_, widget) => {
+      // Handle dirty state for open documents.
+      const context = docManager.contextForWidget(widget);
+      if (context && !contexts.has(context)) {
+        if (status) {
+          handleContext(status, context);
         }
+        contexts.add(context);
       }
-    };
-    const registry = app.docRegistry;
+    });
+  }
+};
+
+/**
+ * A plugin providing the default document manager.
+ */
+const manager: JupyterFrontEndPlugin<IDocumentManager> = {
+  id: '@jupyterlab/docmanager-extension:manager',
+  description: 'Provides the document manager.',
+  provides: IDocumentManager,
+  requires: [IDocumentWidgetOpener],
+  optional: [ITranslator, ILabStatus, ISessionContextDialogs, JupyterLab.IInfo],
+  activate: (
+    app: JupyterFrontEnd,
+    widgetOpener: IDocumentWidgetOpener,
+    translator_: ITranslator | null,
+    status: ILabStatus | null,
+    sessionDialogs_: ISessionContextDialogs | null,
+    info: JupyterLab.IInfo | null
+  ) => {
+    const { serviceManager: manager, docRegistry: registry } = app;
+    const translator = translator_ ?? nullTranslator;
+    const sessionDialogs =
+      sessionDialogs_ ?? new SessionContextDialogs({ translator });
     const when = app.restored.then(() => void 0);
+
     const docManager = new DocumentManager({
       registry,
       manager,
-      opener,
+      opener: widgetOpener,
       when,
       setBusy: (status && (() => status.setBusy())) ?? undefined,
-      sessionDialogs: sessionDialogs || undefined,
-      translator,
-      collaborative: true,
-      docProviderFactory: docProviderFactory ?? undefined
+      sessionDialogs,
+      translator: translator ?? nullTranslator,
+      isConnectedCallback: () => {
+        if (info) {
+          return info.isConnected;
+        }
+        return true;
+      }
     });
 
+    return docManager;
+  }
+};
+
+/**
+ * The default document manager provider commands and settings.
+ */
+const docManagerPlugin: JupyterFrontEndPlugin<void> = {
+  id: docManagerPluginId,
+  description: 'Adds commands and settings to the document manager.',
+  autoStart: true,
+  requires: [IDocumentManager, IDocumentWidgetOpener, ISettingRegistry],
+  optional: [ITranslator, ICommandPalette, ILabShell],
+  activate: (
+    app: JupyterFrontEnd,
+    docManager: IDocumentManager,
+    widgetOpener: IDocumentWidgetOpener,
+    settingRegistry: ISettingRegistry,
+    translator: ITranslator | null,
+    palette: ICommandPalette | null,
+    labShell: ILabShell | null
+  ): void => {
+    translator = translator ?? nullTranslator;
+    const trans = translator.load('jupyterlab');
+    const registry = app.docRegistry;
+
     // Register the file operations commands.
     addCommands(
       app,
       docManager,
-      opener,
+      widgetOpener,
       settingRegistry,
       translator,
       labShell,
@@ -207,7 +280,7 @@ const docManagerPlugin: JupyterFrontEndPlugin<IDocumentManager> = {
       });
       // Set the default factory overrides. If not provided, this has the
       // effect of unsetting any previous overrides.
-      each(registry.fileTypes(), ft => {
+      for (const ft of registry.fileTypes()) {
         try {
           registry.setDefaultWidgetFactory(ft.name, overrides[ft.name]);
         } catch {
@@ -217,7 +290,7 @@ const docManagerPlugin: JupyterFrontEndPlugin<IDocumentManager> = {
             }`
           );
         }
-      });
+      }
     };
 
     // Fetch the initial state of the settings.
@@ -260,11 +333,11 @@ const docManagerPlugin: JupyterFrontEndPlugin<IDocumentManager> = {
     settingRegistry.transform(docManagerPluginId, {
       fetch: plugin => {
         // Get the available file types.
-        const fileTypes = toArray(registry.fileTypes())
+        const fileTypes = Array.from(registry.fileTypes())
           .map(ft => ft.name)
           .join('    \n');
         // Get the available widget factories.
-        const factories = toArray(registry.widgetFactories())
+        const factories = Array.from(registry.widgetFactories())
           .map(f => f.name)
           .join('    \n');
         // Generate the help string.
@@ -295,9 +368,9 @@ Available file types:
 
     // If the document registry gains or loses a factory or file type,
     // regenerate the settings description with the available options.
-    registry.changed.connect(() => settingRegistry.reload(docManagerPluginId));
-
-    return docManager;
+    registry.changed.connect(() =>
+      settingRegistry.load(docManagerPluginId, true)
+    );
   }
 };
 
@@ -306,21 +379,25 @@ Available file types:
  */
 export const savingStatusPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/docmanager-extension:saving-status',
+  description: 'Adds a saving status indicator.',
   autoStart: true,
-  requires: [IDocumentManager, ILabShell, ITranslator],
-  optional: [IStatusBar],
+  requires: [IDocumentManager, ILabShell],
+  optional: [ITranslator, IStatusBar],
   activate: (
     _: JupyterFrontEnd,
     docManager: IDocumentManager,
     labShell: ILabShell,
-    translator: ITranslator,
+    translator: ITranslator | null,
     statusBar: IStatusBar | null
   ) => {
     if (!statusBar) {
       // Automatically disable if statusbar missing
       return;
     }
-    const saving = new SavingStatus({ docManager, translator });
+    const saving = new SavingStatus({
+      docManager,
+      translator: translator ?? nullTranslator
+    });
 
     // Keep the currently active widget synchronized.
     saving.model!.widget = labShell.currentWidget;
@@ -342,6 +419,7 @@ export const savingStatusPlugin: JupyterFrontEndPlugin<void> = {
  */
 export const pathStatusPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/docmanager-extension:path-status',
+  description: 'Adds a file path indicator in the status bar.',
   autoStart: true,
   requires: [IDocumentManager, ILabShell],
   optional: [IStatusBar],
@@ -376,16 +454,17 @@ export const pathStatusPlugin: JupyterFrontEndPlugin<void> = {
  */
 export const downloadPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/docmanager-extension:download',
+  description: 'Adds command to download files.',
   autoStart: true,
-  requires: [ITranslator, IDocumentManager],
-  optional: [ICommandPalette],
+  requires: [IDocumentManager],
+  optional: [ITranslator, ICommandPalette],
   activate: (
     app: JupyterFrontEnd,
-    translator: ITranslator,
     docManager: IDocumentManager,
+    translator: ITranslator | null,
     palette: ICommandPalette | null
   ) => {
-    const trans = translator.load('jupyterlab');
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     const { commands, shell } = app;
     const isEnabled = () => {
       const { currentWidget } = shell;
@@ -403,7 +482,7 @@ export const downloadPlugin: JupyterFrontEndPlugin<void> = {
             return showDialog({
               title: trans.__('Cannot Download'),
               body: trans.__('No context found for current widget!'),
-              buttons: [Dialog.okButton({ label: trans.__('OK') })]
+              buttons: [Dialog.okButton()]
             });
           }
           return context.download();
@@ -429,14 +508,16 @@ export const downloadPlugin: JupyterFrontEndPlugin<void> = {
  */
 export const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/docmanager-extension:open-browser-tab',
+  description: 'Adds command to open a browser tab.',
   autoStart: true,
-  requires: [ITranslator, IDocumentManager],
+  requires: [IDocumentManager],
+  optional: [ITranslator],
   activate: (
     app: JupyterFrontEnd,
-    translator: ITranslator,
-    docManager: IDocumentManager
+    docManager: IDocumentManager,
+    translator: ITranslator | null
   ) => {
-    const trans = translator.load('jupyterlab');
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     const { commands } = app;
     commands.addCommand(CommandIDs.openBrowserTab, {
       execute: args => {
@@ -457,7 +538,7 @@ export const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
           }
         });
       },
-      icon: args => (args['icon'] as string) || '',
+      iconClass: args => (args['icon'] as string) || '',
       label: () => trans.__('Open in New Browser Tab')
     });
   }
@@ -467,11 +548,14 @@ export const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
  * Export the plugins as default.
  */
 const plugins: JupyterFrontEndPlugin<any>[] = [
+  manager,
   docManagerPlugin,
+  contextsPlugin,
   pathStatusPlugin,
   savingStatusPlugin,
   downloadPlugin,
-  openBrowserTabPlugin
+  openBrowserTabPlugin,
+  openerPlugin
 ];
 export default plugins;
 
@@ -485,7 +569,7 @@ export namespace ToolbarItems {
    */
   export function createSaveButton(
     commands: CommandRegistry,
-    fileChanged: ISignal<any, Contents.IModel>
+    fileChanged: ISignal<any, Omit<Contents.IModel, 'content'>>
   ): Widget {
     return addCommandToolbarButtonClass(
       ReactWidget.create(
@@ -539,7 +623,7 @@ function fileType(widget: Widget | null, docManager: IDocumentManager): string {
 function addCommands(
   app: JupyterFrontEnd,
   docManager: IDocumentManager,
-  opener: DocumentManager.IWidgetOpener,
+  widgetOpener: IDocumentWidgetOpener,
   settingRegistry: ISettingRegistry,
   translator: ITranslator,
   labShell: ILabShell | null,
@@ -564,7 +648,7 @@ function addCommands(
 
   // If inside a rich application like JupyterLab, add additional functionality.
   if (labShell) {
-    addLabCommands(app, docManager, labShell, opener, translator);
+    addLabCommands(app, docManager, labShell, widgetOpener, translator);
   }
 
   commands.addCommand(CommandIDs.deleteFile, {
@@ -583,7 +667,6 @@ function addCommands(
 
   commands.addCommand(CommandIDs.newUntitled, {
     execute: args => {
-      // FIXME-TRANS: Localizing args['error']?
       const errorTitle = (args['error'] as string) || trans.__('Error');
       const path =
         typeof args['path'] === 'undefined' ? '' : (args['path'] as string);
@@ -608,15 +691,17 @@ function addCommands(
       const path =
         typeof args['path'] === 'undefined' ? '' : (args['path'] as string);
       const factory = (args['factory'] as string) || void 0;
-      const kernel = (args?.kernel as unknown) as Kernel.IModel | undefined;
+      const kernel = args?.kernel as unknown as Kernel.IModel | undefined;
       const options =
         (args['options'] as DocumentRegistry.IOpenOptions) || void 0;
       return docManager.services.contents
         .get(path, { content: false })
         .then(() => docManager.openOrReveal(path, factory, kernel, options));
     },
-    icon: args => (args['icon'] as string) || '',
-    label: args => (args['label'] || args['factory']) as string,
+    iconClass: args => (args['icon'] as string) || '',
+    label: args =>
+      ((args['label'] || args['factory']) ??
+        trans.__('Open the provided `path`.')) as string,
     mnemonic: args => (args['mnemonic'] as number) || -1
   });
 
@@ -639,7 +724,7 @@ function addCommands(
         return showDialog({
           title: trans.__('Cannot Reload'),
           body: trans.__('No context found for current widget!'),
-          buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+          buttons: [Dialog.okButton()]
         });
       }
       if (context.model.dirty) {
@@ -650,7 +735,7 @@ function addCommands(
             type
           ),
           buttons: [
-            Dialog.cancelButton({ label: trans.__('Cancel') }),
+            Dialog.cancelButton(),
             Dialog.warnButton({ label: trans.__('Reload') })
           ]
         }).then(result => {
@@ -669,7 +754,7 @@ function addCommands(
   commands.addCommand(CommandIDs.restoreCheckpoint, {
     label: () =>
       trans.__(
-        'Revert %1 to Checkpoint',
+        'Revert %1 to Checkpoint…',
         fileType(shell.currentWidget, docManager)
       ),
     caption: trans.__('Revert contents to previous checkpoint'),
@@ -684,24 +769,35 @@ function addCommands(
         return showDialog({
           title: trans.__('Cannot Revert'),
           body: trans.__('No context found for current widget!'),
-          buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+          buttons: [Dialog.okButton()]
         });
       }
-      return context.listCheckpoints().then(checkpoints => {
+      return context.listCheckpoints().then(async checkpoints => {
+        const type = fileType(shell.currentWidget, docManager);
         if (checkpoints.length < 1) {
+          await showErrorMessage(
+            trans.__('No checkpoints'),
+            trans.__('No checkpoints are available for this %1.', type)
+          );
           return;
         }
-        const lastCheckpoint = checkpoints[checkpoints.length - 1];
-        if (!lastCheckpoint) {
+        const targetCheckpoint =
+          checkpoints.length === 1
+            ? checkpoints[0]
+            : await Private.getTargetCheckpoint(checkpoints.reverse(), trans);
+
+        if (!targetCheckpoint) {
           return;
         }
-        const type = fileType(shell.currentWidget, docManager);
         return showDialog({
           title: trans.__('Revert %1 to checkpoint', type),
-          body: new RevertConfirmWidget(lastCheckpoint, trans, type),
+          body: new RevertConfirmWidget(targetCheckpoint, trans, type),
           buttons: [
-            Dialog.cancelButton({ label: trans.__('Cancel') }),
-            Dialog.warnButton({ label: trans.__('Revert') })
+            Dialog.cancelButton(),
+            Dialog.warnButton({
+              label: trans.__('Revert'),
+              ariaLabel: trans.__('Revert to Checkpoint')
+            })
           ]
         }).then(result => {
           if (context.isDisposed) {
@@ -711,7 +807,9 @@ function addCommands(
             if (context.model.readOnly) {
               return context.revert();
             }
-            return context.restoreCheckpoint().then(() => context.revert());
+            return context
+              .restoreCheckpoint(targetCheckpoint.id)
+              .then(() => context.revert());
           }
         });
       });
@@ -736,7 +834,7 @@ function addCommands(
   commands.addCommand(CommandIDs.save, {
     label: () => trans.__('Save %1', fileType(shell.currentWidget, docManager)),
     caption,
-    icon: args => (args.toolbar ? saveIcon : ''),
+    icon: args => (args.toolbar ? saveIcon : undefined),
     isEnabled: isWritable,
     execute: async () => {
       // Checks that shell.currentWidget is valid:
@@ -747,7 +845,7 @@ function addCommands(
           return showDialog({
             title: trans.__('Cannot Save'),
             body: trans.__('No context found for current widget!'),
-            buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+            buttons: [Dialog.okButton()]
           });
         } else {
           if (saveInProgress.has(context)) {
@@ -758,7 +856,7 @@ function addCommands(
             return showDialog({
               title: trans.__('Cannot Save'),
               body: trans.__('Document is read-only'),
-              buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+              buttons: [Dialog.okButton()]
             });
           }
 
@@ -840,20 +938,20 @@ function addCommands(
     caption: trans.__('Save all open documents'),
     isEnabled: () => {
       return some(
-        map(shell.widgets('main'), w => docManager.contextForWidget(w)),
-        c => c?.contentsModel?.writable ?? false
+        shell.widgets('main'),
+        w => docManager.contextForWidget(w)?.contentsModel?.writable ?? false
       );
     },
     execute: () => {
       const promises: Promise<void>[] = [];
       const paths = new Set<string>(); // Cache so we don't double save files.
-      each(shell.widgets('main'), widget => {
+      for (const widget of shell.widgets('main')) {
         const context = docManager.contextForWidget(widget);
         if (context && !context.model.readOnly && !paths.has(context.path)) {
           paths.add(context.path);
           promises.push(context.save());
         }
-      });
+      }
       return Promise.all(promises);
     }
   });
@@ -871,7 +969,7 @@ function addCommands(
           return showDialog({
             title: trans.__('Cannot Save'),
             body: trans.__('No context found for current widget!'),
-            buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+            buttons: [Dialog.okButton()]
           });
         }
 
@@ -922,7 +1020,8 @@ function addCommands(
       CommandIDs.restoreCheckpoint,
       CommandIDs.save,
       CommandIDs.saveAs,
-      CommandIDs.toggleAutosave
+      CommandIDs.toggleAutosave,
+      CommandIDs.duplicate
     ].forEach(command => {
       palette.addItem({ command, category });
     });
@@ -933,7 +1032,7 @@ function addLabCommands(
   app: JupyterFrontEnd,
   docManager: IDocumentManager,
   labShell: ILabShell,
-  opener: DocumentManager.IWidgetOpener,
+  widgetOpener: IDocumentWidgetOpener,
   translator: ITranslator
 ): void {
   const trans = translator.load('jupyterlab');
@@ -974,7 +1073,7 @@ function addLabCommands(
       // Clone the widget.
       const child = docManager.cloneWidget(widget);
       if (child) {
-        opener.open(child, options);
+        widgetOpener.open(child, options);
       }
     }
   });
@@ -992,7 +1091,22 @@ function addLabCommands(
       // Implies contextMenuWidget() !== null
       if (isEnabled()) {
         const context = docManager.contextForWidget(contextMenuWidget()!);
-        return renameDialog(docManager, context!.path);
+        return renameDialog(docManager, context!);
+      }
+    }
+  });
+
+  commands.addCommand(CommandIDs.duplicate, {
+    label: () =>
+      trans.__('Duplicate %1', fileType(contextMenuWidget(), docManager)),
+    isEnabled,
+    execute: () => {
+      if (isEnabled()) {
+        const context = docManager.contextForWidget(contextMenuWidget()!);
+        if (!context) {
+          return;
+        }
+        return docManager.duplicate(context.path);
       }
     }
   });
@@ -1012,7 +1126,7 @@ function addLabCommands(
           title: trans.__('Delete'),
           body: trans.__('Are you sure you want to delete %1', context.path),
           buttons: [
-            Dialog.cancelButton({ label: trans.__('Cancel') }),
+            Dialog.cancelButton(),
             Dialog.warnButton({ label: trans.__('Delete') })
           ]
         });
@@ -1094,7 +1208,7 @@ namespace Private {
     const confirmMessage = document.createElement('p');
     const confirmText = document.createTextNode(
       trans.__(
-        'Are you sure you want to revert the %1 to the latest checkpoint? ',
+        'Are you sure you want to revert the %1 to checkpoint? ',
         fileType
       )
     );
@@ -1112,10 +1226,7 @@ namespace Private {
     const date = new Date(checkpoint.last_modified);
     lastCheckpointDate.style.textAlign = 'center';
     lastCheckpointDate.textContent =
-      Time.format(date, 'dddd, MMMM Do YYYY, h:mm:ss a') +
-      ' (' +
-      Time.formatHuman(date) +
-      ')';
+      Time.format(date) + ' (' + Time.formatHuman(date) + ')';
 
     lastCheckpointMessage.appendChild(lastCheckpointText);
     lastCheckpointMessage.appendChild(lastCheckpointDate);
@@ -1124,4 +1235,33 @@ namespace Private {
     body.appendChild(lastCheckpointMessage);
     return body;
   }
+
+  /**
+   * Ask user for a checkpoint to revert to.
+   */
+  export async function getTargetCheckpoint(
+    checkpoints: Contents.ICheckpointModel[],
+    trans: TranslationBundle
+  ): Promise<Contents.ICheckpointModel | undefined> {
+    // the id could be too long to show so use the index instead
+    const indexSeparator = '.';
+    const items = checkpoints.map((checkpoint, index) => {
+      const isoDate = Time.format(checkpoint.last_modified);
+      const humanDate = Time.formatHuman(checkpoint.last_modified);
+      return `${index}${indexSeparator} ${isoDate} (${humanDate})`;
+    });
+
+    const selectedItem = (
+      await InputDialog.getItem({
+        items: items,
+        title: trans.__('Choose a checkpoint')
+      })
+    ).value;
+
+    if (!selectedItem) {
+      return;
+    }
+    const selectedIndex = selectedItem.split(indexSeparator, 1)[0];
+    return checkpoints[parseInt(selectedIndex, 10)];
+  }
 }
diff --git a/packages/docmanager-extension/style/index.css b/packages/docmanager-extension/style/index.css
index 9750a281d60a..2ae2b00db572 100644
--- a/packages/docmanager-extension/style/index.css
+++ b/packages/docmanager-extension/style/index.css
@@ -6,9 +6,8 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~@jupyterlab/docprovider/style/index.css');
+@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/docmanager/style/index.css');
diff --git a/packages/docmanager-extension/style/index.js b/packages/docmanager-extension/style/index.js
index 51b24f75ba7c..8cc460428cb7 100644
--- a/packages/docmanager-extension/style/index.js
+++ b/packages/docmanager-extension/style/index.js
@@ -6,9 +6,8 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
-import '@jupyterlab/docprovider/style/index.js';
+import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/docmanager/style/index.js';
diff --git a/packages/docmanager-extension/tsconfig.json b/packages/docmanager-extension/tsconfig.json
index dc6f630de7b2..7e7f847ba406 100644
--- a/packages/docmanager-extension/tsconfig.json
+++ b/packages/docmanager-extension/tsconfig.json
@@ -18,9 +18,6 @@
     {
       "path": "../docmanager"
     },
-    {
-      "path": "../docprovider"
-    },
     {
       "path": "../docregistry"
     },
diff --git a/packages/docmanager/.vscode/launch.json b/packages/docmanager/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/docmanager/.vscode/launch.json
+++ b/packages/docmanager/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/docmanager/babel.config.js b/packages/docmanager/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/docmanager/babel.config.js
+++ b/packages/docmanager/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/docmanager/jest.config.js b/packages/docmanager/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/docmanager/jest.config.js
+++ b/packages/docmanager/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/docmanager/package.json b/packages/docmanager/package.json
index 19c398e8067f..e7e2180b2089 100644
--- a/packages/docmanager/package.json
+++ b/packages/docmanager/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/docmanager",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Document Manager",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,35 +37,34 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "npm run test -- --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docprovider": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/docmanager/src/dialogs.ts b/packages/docmanager/src/dialogs.ts
index 0339cdd65c03..d79495bca881 100644
--- a/packages/docmanager/src/dialogs.ts
+++ b/packages/docmanager/src/dialogs.ts
@@ -2,6 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Dialog, showDialog, showErrorMessage } from '@jupyterlab/apputils';
+import { DocumentRegistry } from '@jupyterlab/docregistry';
 import { PathExt } from '@jupyterlab/coreutils';
 import { Contents } from '@jupyterlab/services';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
@@ -38,19 +39,25 @@ export interface IFileContainer extends JSONObject {
  */
 export function renameDialog(
   manager: IDocumentManager,
-  oldPath: string,
+  context: DocumentRegistry.Context,
   translator?: ITranslator
-): Promise<Contents.IModel | null> {
+): Promise<void | null> {
   translator = translator || nullTranslator;
   const trans = translator.load('jupyterlab');
 
+  const localPath = context.localPath.split('/');
+  const fileName = localPath.pop() || context.localPath;
+
   return showDialog({
     title: trans.__('Rename File'),
-    body: new RenameHandler(oldPath),
+    body: new RenameHandler(fileName),
     focusNodeSelector: 'input',
     buttons: [
-      Dialog.cancelButton({ label: trans.__('Cancel') }),
-      Dialog.okButton({ label: trans.__('Rename') })
+      Dialog.cancelButton(),
+      Dialog.okButton({
+        label: trans.__('Rename'),
+        ariaLabel: trans.__('Rename File')
+      })
     ]
   }).then(result => {
     if (!result.value) {
@@ -68,9 +75,7 @@ export function renameDialog(
       );
       return null;
     }
-    const basePath = PathExt.dirname(oldPath);
-    const newPath = PathExt.join(basePath, result.value);
-    return renameFile(manager, oldPath, newPath);
+    return context.rename(result.value);
   });
 }
 
@@ -112,8 +117,11 @@ export function shouldOverwrite(
     title: trans.__('Overwrite file?'),
     body: trans.__('"%1" already exists, overwrite?', path),
     buttons: [
-      Dialog.cancelButton({ label: trans.__('Cancel') }),
-      Dialog.warnButton({ label: trans.__('Overwrite') })
+      Dialog.cancelButton(),
+      Dialog.warnButton({
+        label: trans.__('Overwrite'),
+        ariaLabel: trans.__('Overwrite Existing File')
+      })
     ]
   };
   return showDialog(options).then(result => {
diff --git a/packages/docmanager/src/manager.ts b/packages/docmanager/src/manager.ts
index 4552086febf1..bd7bcc8a56ee 100644
--- a/packages/docmanager/src/manager.ts
+++ b/packages/docmanager/src/manager.ts
@@ -1,9 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ISessionContext, sessionContextDialogs } from '@jupyterlab/apputils';
+import { ISessionContext, SessionContextDialogs } from '@jupyterlab/apputils';
 import { IChangedArgs, PathExt } from '@jupyterlab/coreutils';
-import { IDocumentProviderFactory } from '@jupyterlab/docprovider';
 import {
   Context,
   DocumentRegistry,
@@ -18,7 +17,7 @@ import { AttachedProperty } from '@lumino/properties';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import { SaveHandler } from './savehandler';
-import { IDocumentManager } from './tokens';
+import { IDocumentManager, IDocumentWidgetOpener } from './tokens';
 import { DocumentWidgetManager } from './widgetmanager';
 
 /**
@@ -39,8 +38,10 @@ export class DocumentManager implements IDocumentManager {
     this.translator = options.translator || nullTranslator;
     this.registry = options.registry;
     this.services = options.manager;
-    this._dialogs = options.sessionDialogs || sessionContextDialogs;
-    this._docProviderFactory = options.docProviderFactory;
+    this._dialogs =
+      options.sessionDialogs ??
+      new SessionContextDialogs({ translator: options.translator });
+    this._isConnectedCallback = options.isConnectedCallback || (() => true);
 
     this._opener = options.opener;
     this._when = options.when || options.manager.ready;
@@ -342,6 +343,18 @@ export class DocumentManager implements IDocumentManager {
       });
   }
 
+  /**
+   * Duplicate a file.
+   *
+   * @param path - The full path to the file to be duplicated.
+   *
+   * @returns A promise which resolves when the file is duplicated.
+   */
+  duplicate(path: string): Promise<Contents.IModel> {
+    const basePath = PathExt.dirname(path);
+    return this.services.contents.copy(path, basePath);
+  }
+
   /**
    * See if a widget already exists for the given path and widget name.
    *
@@ -452,10 +465,13 @@ export class DocumentManager implements IDocumentManager {
   ): IDocumentWidget | undefined {
     const widget = this.findWidget(path, widgetName);
     if (widget) {
-      this._opener.open(widget, options || {});
+      this._opener.open(widget, {
+        type: widgetName,
+        ...options
+      });
       return widget;
     }
-    return this.open(path, widgetName, kernel, options || {});
+    return this.open(path, widgetName, kernel, options ?? {});
   }
 
   /**
@@ -543,25 +559,23 @@ export class DocumentManager implements IDocumentManager {
       options?: DocumentRegistry.IOpenOptions
     ) => {
       this._widgetManager.adoptWidget(context, widget);
+      // TODO should we pass the type for layout customization
       this._opener.open(widget, options);
     };
-    const modelDBFactory =
-      this.services.contents.getModelDBFactory(path) || undefined;
     const context = new Context({
       opener: adopter,
       manager: this.services,
       factory,
       path,
       kernelPreference,
-      modelDBFactory,
       setBusy: this._setBusy,
       sessionDialogs: this._dialogs,
-      docProviderFactory: this._docProviderFactory,
       lastModifiedCheckMargin: this._lastModifiedCheckMargin,
       translator: this.translator
     });
     const handler = new SaveHandler({
       context,
+      isConnectedCallback: this._isConnectedCallback,
       saveInterval: this.autosaveInterval
     });
     Private.saveHandlerProperty.set(context, handler);
@@ -654,7 +668,7 @@ export class DocumentManager implements IDocumentManager {
     }
 
     const widget = this._widgetManager.createWidget(widgetFactory, context);
-    this._opener.open(widget, options || {});
+    this._opener.open(widget, { type: widgetFactory.name, ...options });
 
     // If the initial opening of the context fails, dispose of the widget.
     ready.catch(err => {
@@ -690,7 +704,7 @@ export class DocumentManager implements IDocumentManager {
   protected translator: ITranslator;
   private _activateRequested = new Signal<this, string>(this);
   private _contexts: Private.IContext[] = [];
-  private _opener: DocumentManager.IWidgetOpener;
+  private _opener: IDocumentWidgetOpener;
   private _widgetManager: DocumentWidgetManager;
   private _isDisposed = false;
   private _autosave = true;
@@ -700,7 +714,7 @@ export class DocumentManager implements IDocumentManager {
   private _when: Promise<void>;
   private _setBusy: (() => IDisposable) | undefined;
   private _dialogs: ISessionContext.IDialogs;
-  private _docProviderFactory: IDocumentProviderFactory | undefined;
+  private _isConnectedCallback: () => boolean;
   private _stateChanged = new Signal<DocumentManager, IChangedArgs<any>>(this);
 }
 
@@ -725,7 +739,7 @@ export namespace DocumentManager {
     /**
      * A widget opener for sibling widgets.
      */
-    opener: IWidgetOpener;
+    opener: IDocumentWidgetOpener;
 
     /**
      * A promise for when to start using the manager.
@@ -748,31 +762,10 @@ export namespace DocumentManager {
     translator?: ITranslator;
 
     /**
-     * A factory method for the document provider.
-     */
-    docProviderFactory?: IDocumentProviderFactory;
-
-    /**
-     * Whether the context should be collaborative.
-     *
-     * @deprecated It will be removed in 4.0.0. The collaborative feature
-     * is provided by the `DocumentRegistry.IModel` (can be customized by the
-     * `DocumentRegistry.IModelFactory`)
+     * Autosaving should be paused while this callback function returns `false`.
+     * By default, it always returns `true`.
      */
-    collaborative?: boolean;
-  }
-
-  /**
-   * An interface for a widget opener.
-   */
-  export interface IWidgetOpener {
-    /**
-     * Open the given widget.
-     */
-    open(
-      widget: IDocumentWidget,
-      options?: DocumentRegistry.IOpenOptions
-    ): void;
+    isConnectedCallback?: () => boolean;
   }
 }
 
diff --git a/packages/docmanager/src/pathstatus.tsx b/packages/docmanager/src/pathstatus.tsx
index 4f4f31668039..171aea60a078 100644
--- a/packages/docmanager/src/pathstatus.tsx
+++ b/packages/docmanager/src/pathstatus.tsx
@@ -1,10 +1,10 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
 import { PathExt } from '@jupyterlab/coreutils';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import { TextItem } from '@jupyterlab/statusbar';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { Title, Widget } from '@lumino/widgets';
 import React from 'react';
 import { IDocumentManager } from './tokens';
@@ -57,7 +57,7 @@ export class PathStatus extends VDomRenderer<PathStatus.Model> {
   /**
    * Render the status item.
    */
-  render() {
+  render(): JSX.Element {
     return (
       <PathStatusComponent
         fullPath={this.model!.path}
diff --git a/packages/docmanager/src/savehandler.ts b/packages/docmanager/src/savehandler.ts
index c5948f88aa08..771ea06be31b 100644
--- a/packages/docmanager/src/savehandler.ts
+++ b/packages/docmanager/src/savehandler.ts
@@ -17,6 +17,7 @@ export class SaveHandler implements IDisposable {
    */
   constructor(options: SaveHandler.IOptions) {
     this._context = options.context;
+    this._isConnectedCallback = options.isConnectedCallback || (() => true);
     const interval = options.saveInterval || 120;
     this._minInterval = interval * 1000;
     this._interval = this._minInterval;
@@ -89,7 +90,9 @@ export class SaveHandler implements IDisposable {
       return;
     }
     this._autosaveTimer = window.setTimeout(() => {
-      this._save();
+      if (this._isConnectedCallback()) {
+        this._save();
+      }
     }, this._interval);
   }
 
@@ -131,11 +134,8 @@ export class SaveHandler implements IDisposable {
       })
       .catch(err => {
         // If the user canceled the save, do nothing.
-        // FIXME-TRANS: Is this affected by localization?
-        if (
-          err.message === 'Cancel' ||
-          err.message === 'Modal is already displayed'
-        ) {
+        const { name } = err;
+        if (name === 'ModalCancelError' || name === 'ModalDuplicateError') {
           return;
         }
         // Otherwise, log the error.
@@ -147,6 +147,7 @@ export class SaveHandler implements IDisposable {
   private _minInterval = -1;
   private _interval = -1;
   private _context: DocumentRegistry.Context;
+  private _isConnectedCallback: () => boolean;
   private _isActive = false;
   private _inDialog = false;
   private _isDisposed = false;
@@ -166,6 +167,12 @@ export namespace SaveHandler {
      */
     context: DocumentRegistry.Context;
 
+    /**
+     * Autosaving should be paused while this callback function returns `false`.
+     * By default, it always returns `true`.
+     */
+    isConnectedCallback?: () => boolean;
+
     /**
      * The minimum save interval in seconds (default is two minutes).
      */
diff --git a/packages/docmanager/src/savingstatus.tsx b/packages/docmanager/src/savingstatus.tsx
index 1ca2b3aa9acd..fbdf5fc18f5d 100644
--- a/packages/docmanager/src/savingstatus.tsx
+++ b/packages/docmanager/src/savingstatus.tsx
@@ -1,10 +1,10 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import { TextItem } from '@jupyterlab/statusbar';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { Widget } from '@lumino/widgets';
 import React from 'react';
 import { IDocumentManager } from './tokens';
@@ -64,7 +64,7 @@ export class SavingStatus extends VDomRenderer<SavingStatus.Model> {
   /**
    * Render the SavingStatus item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (this.model === null || this.model.status === null) {
       return null;
     } else {
@@ -110,7 +110,7 @@ export namespace SavingStatus {
      * but it only has any effect if the widget is an IDocument widget
      * known to the application document manager.
      */
-    get widget() {
+    get widget(): Widget | null {
       return this._widget;
     }
     set widget(widget: Widget | null) {
diff --git a/packages/docmanager/src/tokens.ts b/packages/docmanager/src/tokens.ts
index ba4ef0906376..b858dfbd9209 100644
--- a/packages/docmanager/src/tokens.ts
+++ b/packages/docmanager/src/tokens.ts
@@ -9,14 +9,23 @@ import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 
-/* tslint:disable */
 /**
  * The document registry token.
  */
 export const IDocumentManager = new Token<IDocumentManager>(
-  '@jupyterlab/docmanager:IDocumentManager'
+  '@jupyterlab/docmanager:IDocumentManager',
+  `A service for the manager for all
+  documents used by the application. Use this if you want to open and close documents,
+  create and delete files, and otherwise interact with the file system.`
+);
+
+/**
+ * The document widget opener token.
+ */
+export const IDocumentWidgetOpener = new Token<IDocumentWidgetOpener>(
+  '@jupyterlab/docmanager:IDocumentWidgetOpener',
+  `A service to open a widget.`
 );
-/* tslint:enable */
 
 /**
  * The interface for a document manager.
@@ -52,6 +61,11 @@ export interface IDocumentManager extends IDisposable {
    */
   autosaveInterval: number;
 
+  /**
+   * Defines max acceptable difference, in milliseconds, between last modified timestamps on disk and client.
+   */
+  lastModifiedCheckMargin: number;
+
   /**
    * Whether to ask the user to rename untitled file on first manual save.
    */
@@ -146,6 +160,16 @@ export interface IDocumentManager extends IDisposable {
    */
   deleteFile(path: string): Promise<void>;
 
+  /**
+   * Duplicate a file.
+   *
+   * @param path - The full path to the file to be duplicated.
+   *
+   * @returns A promise which resolves when the file is duplicated.
+   *
+   */
+  duplicate(path: string): Promise<Contents.IModel>;
+
   /**
    * See if a widget already exists for the given path and widget name.
    *
@@ -240,3 +264,18 @@ export interface IDocumentManager extends IDisposable {
    */
   rename(oldPath: string, newPath: string): Promise<Contents.IModel>;
 }
+
+/**
+ * The interface for a widget opener.
+ */
+export interface IDocumentWidgetOpener {
+  /**
+   * Open the given widget.
+   */
+  open(widget: IDocumentWidget, options?: DocumentRegistry.IOpenOptions): void;
+
+  /**
+   * A signal emitted when a widget is opened
+   */
+  readonly opened: ISignal<IDocumentWidgetOpener, IDocumentWidget>;
+}
diff --git a/packages/docmanager/src/widgetmanager.ts b/packages/docmanager/src/widgetmanager.ts
index 29bb77df609d..dad44890c105 100644
--- a/packages/docmanager/src/widgetmanager.ts
+++ b/packages/docmanager/src/widgetmanager.ts
@@ -6,7 +6,7 @@ import { IChangedArgs, Time } from '@jupyterlab/coreutils';
 import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
 import { Contents } from '@jupyterlab/services';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { ArrayExt, each, filter, find, map, toArray } from '@lumino/algorithm';
+import { ArrayExt, find } from '@lumino/algorithm';
 import { DisposableSet, IDisposable } from '@lumino/disposable';
 import { IMessageHandler, Message, MessageLoop } from '@lumino/messaging';
 import { AttachedProperty } from '@lumino/properties';
@@ -114,12 +114,12 @@ export class DocumentWidgetManager implements IDisposable {
     Private.factoryProperty.set(widget, factory);
     // Handle widget extensions.
     const disposables = new DisposableSet();
-    each(this._registry.widgetExtensions(factory.name), extender => {
+    for (const extender of this._registry.widgetExtensions(factory.name)) {
       const disposable = extender.createNew(widget, context);
       if (disposable) {
         disposables.add(disposable);
       }
-    });
+    }
     Private.disposablesProperty.set(widget, disposables);
     widget.disposed.connect(this._onWidgetDisposed, this);
 
@@ -223,9 +223,9 @@ export class DocumentWidgetManager implements IDisposable {
    */
   closeWidgets(context: DocumentRegistry.Context): Promise<void> {
     const widgets = Private.widgetsProperty.get(context);
-    return Promise.all(
-      toArray(map(widgets, widget => this.onClose(widget)))
-    ).then(() => undefined);
+    return Promise.all(widgets.map(widget => this.onClose(widget))).then(
+      () => undefined
+    );
   }
 
   /**
@@ -236,9 +236,9 @@ export class DocumentWidgetManager implements IDisposable {
    */
   deleteWidgets(context: DocumentRegistry.Context): Promise<void> {
     const widgets = Private.widgetsProperty.get(context);
-    return Promise.all(
-      toArray(map(widgets, widget => this.onDelete(widget)))
-    ).then(() => undefined);
+    return Promise.all(widgets.map(widget => this.onDelete(widget))).then(
+      () => undefined
+    );
   }
 
   /**
@@ -374,15 +374,13 @@ export class DocumentWidgetManager implements IDisposable {
       return Promise.resolve([true, true]);
     }
     // Filter by whether the factories are read only.
-    widgets = toArray(
-      filter(widgets, widget => {
-        const factory = Private.factoryProperty.get(widget);
-        if (!factory) {
-          return false;
-        }
-        return factory.readOnly === false;
-      })
-    );
+    widgets = widgets.filter(widget => {
+      const factory = Private.factoryProperty.get(widget);
+      if (!factory) {
+        return false;
+      }
+      return factory.readOnly === false;
+    });
     const fileName = widget.title.label;
 
     const factory = Private.factoryProperty.get(widget);
@@ -396,14 +394,20 @@ export class DocumentWidgetManager implements IDisposable {
       const buttons = [
         Dialog.cancelButton(),
         Dialog.okButton({
-          label: isDirty ? trans.__('Close and save') : trans.__('Close')
+          label: isDirty ? trans.__('Close and save') : trans.__('Close'),
+          ariaLabel: isDirty
+            ? trans.__('Close and save Document')
+            : trans.__('Close Document')
         })
       ];
       if (isDirty) {
         buttons.splice(
           1,
           0,
-          Dialog.warnButton({ label: trans.__('Close without saving') })
+          Dialog.warnButton({
+            label: trans.__('Close without saving'),
+            ariaLabel: trans.__('Close Document without saving')
+          })
         );
       }
 
@@ -441,12 +445,14 @@ export class DocumentWidgetManager implements IDisposable {
         title: trans.__('Save your work'),
         body: trans.__('Save changes in "%1" before closing?', fileName),
         buttons: [
-          Dialog.cancelButton({ label: trans.__('Cancel') }),
-          Dialog.warnButton({ label: trans.__('Discard') }),
+          Dialog.cancelButton(),
+          Dialog.warnButton({
+            label: trans.__('Discard'),
+            ariaLabel: trans.__('Discard changes to file')
+          }),
           Dialog.okButton({ label: saveLabel })
         ]
       });
-
       return [result.button.accept, result.button.displayType === 'warn'];
     }
   }
@@ -484,9 +490,9 @@ export class DocumentWidgetManager implements IDisposable {
    */
   private _onFileChanged(context: DocumentRegistry.Context): void {
     const widgets = Private.widgetsProperty.get(context);
-    each(widgets, widget => {
+    for (const widget of widgets) {
       void this.setCaption(widget);
-    });
+    }
   }
 
   /**
@@ -494,9 +500,9 @@ export class DocumentWidgetManager implements IDisposable {
    */
   private _onPathChanged(context: DocumentRegistry.Context): void {
     const widgets = Private.widgetsProperty.get(context);
-    each(widgets, widget => {
+    for (const widget of widgets) {
       void this.setCaption(widget);
-    });
+    }
   }
 
   protected translator: ITranslator;
diff --git a/packages/docmanager/style/index.css b/packages/docmanager/style/index.css
index 103c29b5f8a8..976696398ad4 100644
--- a/packages/docmanager/style/index.css
+++ b/packages/docmanager/style/index.css
@@ -5,6 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docprovider/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
diff --git a/packages/docmanager/style/index.js b/packages/docmanager/style/index.js
index fd5647a46d3c..3c2da7ff3666 100644
--- a/packages/docmanager/style/index.js
+++ b/packages/docmanager/style/index.js
@@ -5,6 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/docprovider/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
diff --git a/packages/docmanager/test/dialog.spec.ts b/packages/docmanager/test/dialog.spec.ts
index 1c1b1511c3a7..a0fd46cdf019 100644
--- a/packages/docmanager/test/dialog.spec.ts
+++ b/packages/docmanager/test/dialog.spec.ts
@@ -1,9 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { DocumentManager, renameFile } from '@jupyterlab/docmanager';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
 import { ServiceManager } from '@jupyterlab/services';
-import { dismissDialog } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
-import { Widget } from '@lumino/widgets';
+import { dismissDialog } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 
 describe('docregistry/dialog', () => {
   let manager: DocumentManager;
@@ -12,15 +17,12 @@ describe('docregistry/dialog', () => {
 
   beforeAll(() => {
     const registry = new DocumentRegistry({});
-    services = new Mock.ServiceManagerMock();
+    services = new ServiceManagerMock();
+    const opener = new DocumentWidgetOpenerMock();
     manager = new DocumentManager({
       registry,
       manager: services,
-      opener: {
-        open: (widget: Widget) => {
-          // no-op
-        }
-      }
+      opener
     });
   });
 
diff --git a/packages/docmanager/test/manager.spec.ts b/packages/docmanager/test/manager.spec.ts
index f07f81f698b6..a321ff802732 100644
--- a/packages/docmanager/test/manager.spec.ts
+++ b/packages/docmanager/test/manager.spec.ts
@@ -8,9 +8,10 @@ import {
   IDocumentWidget,
   TextModelFactory
 } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
 import { ServiceManager } from '@jupyterlab/services';
-import { dismissDialog } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { dismissDialog } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { Widget } from '@lumino/widgets';
 import { DocumentManager } from '../src';
 
@@ -71,10 +72,11 @@ describe('@jupyterlab/docmanager', () => {
   });
 
   beforeAll(() => {
-    services = new Mock.ServiceManagerMock();
+    services = new ServiceManagerMock();
   });
 
   beforeEach(() => {
+    const opener = new DocumentWidgetOpenerMock();
     const registry = new DocumentRegistry({ textModelFactory });
     registry.addWidgetFactory(widgetFactory);
     registry.addWidgetFactory(widgetFactoryShared);
@@ -84,11 +86,7 @@ describe('@jupyterlab/docmanager', () => {
     manager = new DocumentManager({
       registry,
       manager: services,
-      opener: {
-        open: (widget: Widget) => {
-          // no-op
-        }
-      }
+      opener
     });
   });
 
@@ -123,7 +121,7 @@ describe('@jupyterlab/docmanager', () => {
 
     describe('#services', () => {
       it('should get the service manager for the manager', async () => {
-        await manager.services.ready;
+        await expect(manager.services.ready).resolves.not.toThrow();
       });
     });
 
@@ -397,8 +395,8 @@ describe('@jupyterlab/docmanager', () => {
         expect(called).toBe(2);
       });
 
-      it('should be a no-op if there are no open files on that path', () => {
-        return manager.closeFile('foo');
+      it('should be a no-op if there are no open files on that path', async () => {
+        await expect(manager.closeFile('foo')).resolves.not.toThrow();
       });
     });
 
@@ -426,7 +424,7 @@ describe('@jupyterlab/docmanager', () => {
       });
 
       it('should be a no-op if there are no open documents', async () => {
-        await manager.closeAll();
+        await expect(manager.closeAll()).resolves.not.toThrow();
       });
     });
   });
diff --git a/packages/docmanager/test/savehandler.spec.ts b/packages/docmanager/test/savehandler.spec.ts
index 176332802ece..92f510b76b21 100644
--- a/packages/docmanager/test/savehandler.spec.ts
+++ b/packages/docmanager/test/savehandler.spec.ts
@@ -12,8 +12,8 @@ import {
   signalToPromise,
   testEmission,
   waitForDialog
-} from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+} from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { PromiseDelegate, UUID } from '@lumino/coreutils';
 import { SaveHandler } from '../src';
 
@@ -24,7 +24,7 @@ describe('docregistry/savehandler', () => {
   let handler: SaveHandler;
 
   beforeAll(() => {
-    manager = new Mock.ServiceManagerMock();
+    manager = new ServiceManagerMock();
   });
 
   beforeEach(() => {
diff --git a/packages/docmanager/test/widgetmanager.spec.ts b/packages/docmanager/test/widgetmanager.spec.ts
index c37c79e9a693..595672d27150 100644
--- a/packages/docmanager/test/widgetmanager.spec.ts
+++ b/packages/docmanager/test/widgetmanager.spec.ts
@@ -10,12 +10,8 @@ import {
   TextModelFactory
 } from '@jupyterlab/docregistry';
 import { ServiceManager } from '@jupyterlab/services';
-import {
-  acceptDialog,
-  dangerDialog,
-  dismissDialog
-} from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { acceptDialog, dangerDialog, dismissDialog } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { PromiseDelegate, UUID } from '@lumino/coreutils';
 import { IMessageHandler, Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
@@ -67,7 +63,7 @@ describe('@jupyterlab/docmanager', () => {
   });
 
   beforeAll(() => {
-    services = new Mock.ServiceManagerMock();
+    services = new ServiceManagerMock();
   });
 
   beforeEach(() => {
diff --git a/packages/docmanager/tsconfig.json b/packages/docmanager/tsconfig.json
index 8412bb5dcf2e..c3879c521eee 100644
--- a/packages/docmanager/tsconfig.json
+++ b/packages/docmanager/tsconfig.json
@@ -12,9 +12,6 @@
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docprovider"
-    },
     {
       "path": "../docregistry"
     },
@@ -26,6 +23,9 @@
     },
     {
       "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/docmanager/tsconfig.test.json b/packages/docmanager/tsconfig.test.json
index 51e0949b4065..eccbf41a7ceb 100644
--- a/packages/docmanager/tsconfig.test.json
+++ b/packages/docmanager/tsconfig.test.json
@@ -8,9 +8,6 @@
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docprovider"
-    },
     {
       "path": "../docregistry"
     },
@@ -24,31 +21,13 @@
       "path": "../translation"
     },
     {
-      "path": "."
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docprovider"
-    },
-    {
-      "path": "../docregistry"
+      "path": "../ui-components"
     },
     {
-      "path": "../services"
-    },
-    {
-      "path": "../statusbar"
+      "path": "."
     },
     {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/docprovider-extension/src/index.ts b/packages/docprovider-extension/src/index.ts
deleted file mode 100644
index 027d6e241126..000000000000
--- a/packages/docprovider-extension/src/index.ts
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-/**
- * @packageDocumentation
- * @module docprovider-extension
- */
-
-import {
-  JupyterFrontEnd,
-  JupyterFrontEndPlugin
-} from '@jupyterlab/application';
-import { URLExt } from '@jupyterlab/coreutils';
-import {
-  IDocumentProvider,
-  IDocumentProviderFactory,
-  ProviderMock,
-  WebSocketProvider
-} from '@jupyterlab/docprovider';
-import { ServerConnection } from '@jupyterlab/services';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { DocumentChange, YDocument } from '@jupyterlab/shared-models';
-
-/**
- * The default document provider plugin
- */
-const docProviderPlugin: JupyterFrontEndPlugin<IDocumentProviderFactory> = {
-  id: '@jupyterlab/docprovider-extension:plugin',
-  provides: IDocumentProviderFactory,
-  optional: [ITranslator],
-  activate: (
-    app: JupyterFrontEnd,
-    translator: ITranslator | null
-  ): IDocumentProviderFactory => {
-    const trans = (translator || nullTranslator).load('jupyterlab');
-    const server = ServerConnection.makeSettings();
-    const url = URLExt.join(server.wsUrl, 'api/yjs');
-    const factory = (
-      options: IDocumentProviderFactory.IOptions<YDocument<DocumentChange>>
-    ): IDocumentProvider => {
-      return options.collaborative
-        ? new WebSocketProvider({
-            ...options,
-            url,
-            user: app.serviceManager.user,
-            translator: trans
-          })
-        : new ProviderMock();
-    };
-    return factory;
-  }
-};
-
-/**
- * Export the plugins as default.
- */
-const plugins: JupyterFrontEndPlugin<any>[] = [docProviderPlugin];
-export default plugins;
diff --git a/packages/docprovider/babel.config.js b/packages/docprovider/babel.config.js
deleted file mode 100644
index 8b5c76420c60..000000000000
--- a/packages/docprovider/babel.config.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
diff --git a/packages/docprovider/jest.config.js b/packages/docprovider/jest.config.js
deleted file mode 100644
index 178440a1c5f3..000000000000
--- a/packages/docprovider/jest.config.js
+++ /dev/null
@@ -1,2 +0,0 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
-module.exports = func(__dirname);
diff --git a/packages/docprovider/package.json b/packages/docprovider/package.json
deleted file mode 100644
index daebaa66ed10..000000000000
--- a/packages/docprovider/package.json
+++ /dev/null
@@ -1,65 +0,0 @@
-{
-  "name": "@jupyterlab/docprovider",
-  "version": "3.6.6",
-  "description": "JupyterLab - Document Provider",
-  "homepage": "https://github.com/jupyterlab/jupyterlab",
-  "bugs": {
-    "url": "https://github.com/jupyterlab/jupyterlab/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/jupyterlab/jupyterlab.git"
-  },
-  "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
-  "sideEffects": [
-    "style/**/*"
-  ],
-  "main": "lib/index.js",
-  "types": "lib/index.d.ts",
-  "style": "style/index.css",
-  "directories": {
-    "lib": "lib/"
-  },
-  "files": [
-    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
-    "schema/*.json",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
-  ],
-  "scripts": {
-    "build": "tsc -b",
-    "build:test": "tsc --build tsconfig.test.json",
-    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "docs": "typedoc src",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
-    "watch": "tsc -b --watch"
-  },
-  "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "y-protocols": "^1.0.5",
-    "y-websocket": "^1.4.6"
-  },
-  "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
-    "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "styleModule": "style/index.js"
-}
diff --git a/packages/docprovider/src/awareness.ts b/packages/docprovider/src/awareness.ts
deleted file mode 100644
index 26e9e9bde1da..000000000000
--- a/packages/docprovider/src/awareness.ts
+++ /dev/null
@@ -1,116 +0,0 @@
-/**
- * From https://en.wikipedia.org/wiki/Moons_of_Jupiter
- *
- * @deprecated in favor of user service. Will be removed in v4.0
- */
-export const moonsOfJupyter = [
-  'Metis',
-  'Adrastea',
-  'Amalthea',
-  'Thebe',
-  'Io',
-  'Europa',
-  'Ganymede',
-  'Callisto',
-  'Themisto',
-  'Leda',
-  'Ersa',
-  'Pandia',
-  'Himalia',
-  'Lysithea',
-  'Elara',
-  'Dia',
-  'Carpo',
-  'Valetudo',
-  'Euporie',
-  'Eupheme',
-  // 'S/2003 J 18',
-  // 'S/2010 J 2',
-  'Helike',
-  // 'S/2003 J 16',
-  // 'S/2003 J 2',
-  'Euanthe',
-  // 'S/2017 J 7',
-  'Hermippe',
-  'Praxidike',
-  'Thyone',
-  'Thelxinoe',
-  // 'S/2017 J 3',
-  'Ananke',
-  'Mneme',
-  // 'S/2016 J 1',
-  'Orthosie',
-  'Harpalyke',
-  'Iocaste',
-  // 'S/2017 J 9',
-  // 'S/2003 J 12',
-  // 'S/2003 J 4',
-  'Erinome',
-  'Aitne',
-  'Herse',
-  'Taygete',
-  // 'S/2017 J 2',
-  // 'S/2017 J 6',
-  'Eukelade',
-  'Carme',
-  // 'S/2003 J 19',
-  'Isonoe',
-  // 'S/2003 J 10',
-  'Autonoe',
-  'Philophrosyne',
-  'Cyllene',
-  'Pasithee',
-  // 'S/2010 J 1',
-  'Pasiphae',
-  'Sponde',
-  // 'S/2017 J 8',
-  'Eurydome',
-  // 'S/2017 J 5',
-  'Kalyke',
-  'Hegemone',
-  'Kale',
-  'Kallichore',
-  // 'S/2011 J 1',
-  // 'S/2017 J 1',
-  'Chaldene',
-  'Arche',
-  'Eirene',
-  'Kore',
-  // 'S/2011 J 2',
-  // 'S/2003 J 9',
-  'Megaclite',
-  'Aoede',
-  // 'S/2003 J 23',
-  'Callirrhoe',
-  'Sinope'
-];
-
-/**
- * Get a random user-name based on the moons of Jupyter.
- * This function returns names like "Anonymous Io" or "Anonymous Metis".
- *
- * @deprecated in favor of user service. Will be removed in v4.0
- */
-export const getAnonymousUserName = (): string =>
-  'Anonymous ' +
-  moonsOfJupyter[Math.floor(Math.random() * moonsOfJupyter.length)];
-
-/**
- * @deprecated in favor of user service. Will be removed in v4.0
- */
-export const userColors = [
-  '#12A0D3',
-  '#17AB30',
-  '#CC8500',
-  '#A79011',
-  '#ee6352',
-  '#609DA9',
-  '#4BA749',
-  '#00A1B3'
-];
-
-/**
- * @deprecated in favor of user service. Will be removed in v4.0
- */
-export const getRandomColor = (): string =>
-  userColors[Math.floor(Math.random() * userColors.length)];
diff --git a/packages/docprovider/src/index.ts b/packages/docprovider/src/index.ts
deleted file mode 100644
index 1a9554f675fd..000000000000
--- a/packages/docprovider/src/index.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-/**
- * @packageDocumentation
- * @module docprovider
- */
-
-export * from './mock';
-export * from './tokens';
-export * from './awareness';
-export * from './yprovider';
diff --git a/packages/docprovider/src/mock.ts b/packages/docprovider/src/mock.ts
deleted file mode 100644
index abd7bdea7f6e..000000000000
--- a/packages/docprovider/src/mock.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-import { IDocumentProvider } from './index';
-
-/**
- * Fallback document provider
- */
-export class ProviderMock implements IDocumentProvider {
-  /**
-   * Test whether the object has been disposed.
-   */
-  get isDisposed(): boolean {
-    return this._isDisposed;
-  }
-
-  /**
-   * Returns a Promise that resolves when the document provider is ready.
-   */
-  get ready(): Promise<void> {
-    return Promise.resolve();
-  }
-
-  /**
-   * Dispose of the resources held by the object.
-   */
-  dispose(): void {
-    if (this.isDisposed) {
-      return;
-    }
-    this._isDisposed = true;
-  }
-
-  private _isDisposed = false;
-}
diff --git a/packages/docprovider/src/tokens.ts b/packages/docprovider/src/tokens.ts
deleted file mode 100644
index 113d9434f55f..000000000000
--- a/packages/docprovider/src/tokens.ts
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (c) Jupyter Development Team.
- * Distributed under the terms of the Modified BSD License.
- */
-
-import { ISharedDocument } from '@jupyterlab/shared-models';
-import { Token } from '@lumino/coreutils';
-import { IDisposable } from '@lumino/disposable';
-
-/**
- * The default document provider token.
- */
-export const IDocumentProviderFactory = new Token<IDocumentProviderFactory>(
-  '@jupyterlab/docprovider:IDocumentProviderFactory'
-);
-
-/**
- * An interface for a document provider.
- */
-export interface IDocumentProvider extends IDisposable {
-  /**
-   * Returns a Promise that resolves when the document provider is ready.
-   */
-  readonly ready: Promise<void>;
-}
-
-/**
- * The type for the document provider factory.
- */
-export type IDocumentProviderFactory<
-  T extends ISharedDocument = ISharedDocument
-> = (options: IDocumentProviderFactory.IOptions<T>) => IDocumentProvider;
-
-/**
- * A namespace for IDocumentProviderFactory statics.
- */
-export namespace IDocumentProviderFactory {
-  /**
-   * The instantiation options for a IDocumentProviderFactory.
-   */
-  export interface IOptions<T extends ISharedDocument = ISharedDocument> {
-    /**
-     * The document file path
-     */
-    path: string;
-
-    /**
-     * Content type
-     */
-    contentType: string;
-
-    /**
-     * The source format
-     */
-    format: string;
-
-    /**
-     * The shared model
-     */
-    model: T;
-
-    /**
-     * Whether the document provider should be collaborative.
-     */
-    collaborative?: boolean;
-  }
-}
diff --git a/packages/docprovider/src/yprovider.ts b/packages/docprovider/src/yprovider.ts
deleted file mode 100644
index 805e950c9635..000000000000
--- a/packages/docprovider/src/yprovider.ts
+++ /dev/null
@@ -1,186 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import { URLExt } from '@jupyterlab/coreutils';
-import { Dialog, showErrorMessage } from '@jupyterlab/apputils';
-import { ServerConnection, User } from '@jupyterlab/services';
-import { nullTranslator, TranslationBundle } from '@jupyterlab/translation';
-
-import { DocumentChange, YDocument } from '@jupyterlab/shared-models';
-
-import { PromiseDelegate } from '@lumino/coreutils';
-import { Signal } from '@lumino/signaling';
-
-import { Awareness } from 'y-protocols/awareness';
-import { WebsocketProvider as YWebsocketProvider } from 'y-websocket';
-
-import { IDocumentProvider, IDocumentProviderFactory } from './tokens';
-
-/**
- * Room Id endpoint provided by `jupyter-server-ydoc`
- * See https://github.com/jupyter-server/jupyter_server_ydoc
- */
-const FILE_PATH_TO_ROOM_ID_URL = 'api/yjs/session';
-
-/**
- * A class to provide Yjs synchronization over WebSocket.
- *
- * We specify custom messages that the server can interpret. For reference please look in yjs_ws_server.
- *
- */
-export class WebSocketProvider implements IDocumentProvider {
-  /**
-   * Construct a new WebSocketProvider
-   *
-   * @param options The instantiation options for a WebSocketProvider
-   */
-  constructor(options: WebSocketProvider.IOptions) {
-    this._isDisposed = false;
-    this._path = options.path;
-    this._contentType = options.contentType;
-    this._format = options.format;
-    this._serverUrl = options.url;
-    this._sharedModel = options.model;
-    this._awareness = options.model.awareness;
-    this._trans = options.translator ?? nullTranslator.load('jupyterlab');
-
-    const user = options.user;
-
-    user?.ready
-      .then(() => {
-        this._onUserChanged(user);
-      })
-      .catch(e => console.error(e));
-    user?.userChanged.connect(this._onUserChanged, this);
-
-    const serverSettings = ServerConnection.makeSettings();
-    const url = URLExt.join(
-      serverSettings.baseUrl,
-      FILE_PATH_TO_ROOM_ID_URL,
-      encodeURIComponent(this._path)
-    );
-    const data = {
-      method: 'PUT',
-      body: JSON.stringify({ format: this._format, type: this._contentType })
-    };
-    ServerConnection.makeRequest(url, data, serverSettings)
-      .then(response => {
-        if (response.status !== 200 && response.status !== 201) {
-          throw new ServerConnection.ResponseError(response);
-        }
-        return response.json();
-      })
-      .then(session => {
-        this._yWebsocketProvider = new YWebsocketProvider(
-          this._serverUrl,
-          `${session.format}:${session.type}:${session.fileId}`,
-          this._sharedModel.ydoc,
-          {
-            disableBc: true,
-            params: { sessionId: session.sessionId },
-            awareness: this._awareness
-          }
-        );
-
-        this._yWebsocketProvider.on(
-          'connection-close',
-          this._onConnectionClosed
-        );
-      })
-      .then(() => this._ready.resolve())
-      .catch(reason => console.warn(reason));
-  }
-
-  /**
-   * Test whether the object has been disposed.
-   */
-  get isDisposed(): boolean {
-    return this._isDisposed;
-  }
-
-  /**
-   * A promise that resolves when the document provider is ready.
-   */
-  get ready(): Promise<void> {
-    return this._ready.promise;
-  }
-
-  /**
-   * Dispose of the resources held by the object.
-   */
-  dispose(): void {
-    if (this.isDisposed) {
-      return;
-    }
-    this._isDisposed = true;
-    this._yWebsocketProvider.destroy();
-    Signal.clearData(this);
-  }
-
-  private _onUserChanged(user: User.IManager): void {
-    this._awareness.setLocalStateField('user', user.identity);
-  }
-
-  private _onConnectionClosed = (event: any): void => {
-    if (event.code === 1003) {
-      console.error('Document provider closed:', event.reason);
-
-      showErrorMessage(
-        this._trans.__('Session expired'),
-        this._trans.__(
-          'The document session expired. You need to reload this browser tab.'
-        ),
-        [Dialog.okButton({ label: this._trans.__('Reload') })]
-      )
-        .then((r: any) => {
-          if (r.button.accept) {
-            window.location.reload();
-          }
-        })
-        .catch(e => window.location.reload());
-
-      // Dispose shared model immediately. Better break the document model,
-      // than overriding data on disk.
-      this._sharedModel.dispose();
-    }
-  };
-
-  private _awareness: Awareness;
-  private _contentType: string;
-  private _format: string;
-  private _isDisposed: boolean;
-  private _path: string;
-  private _ready = new PromiseDelegate<void>();
-  private _serverUrl: string;
-  private _sharedModel: YDocument<DocumentChange>;
-  private _yWebsocketProvider: YWebsocketProvider;
-  private _trans: TranslationBundle;
-}
-
-/**
- * A namespace for WebSocketProvider statics.
- */
-export namespace WebSocketProvider {
-  /**
-   * The instantiation options for a WebSocketProvider.
-   */
-  export interface IOptions
-    extends IDocumentProviderFactory.IOptions<YDocument<DocumentChange>> {
-    /**
-     * The server URL
-     */
-    url: string;
-
-    /**
-     * The user data
-     */
-    user?: User.IManager;
-
-    /**
-     * The jupyterlab translator
-     */
-    translator?: TranslationBundle;
-  }
-}
diff --git a/packages/docprovider/test/yprovider.spec.ts b/packages/docprovider/test/yprovider.spec.ts
deleted file mode 100644
index 09057468c826..000000000000
--- a/packages/docprovider/test/yprovider.spec.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { WebSocketProvider } from '../src';
-
-describe('@jupyterlab/docprovider', () => {
-  describe('docprovider', () => {
-    it('should have a type', () => {
-      expect(WebSocketProvider).not.toBeUndefined();
-    });
-  });
-});
diff --git a/packages/docprovider/typedoc.json b/packages/docprovider/typedoc.json
deleted file mode 100644
index f3e6fbd40e7e..000000000000
--- a/packages/docprovider/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/docprovider",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/docregistry/.vscode/launch.json b/packages/docregistry/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/docregistry/.vscode/launch.json
+++ b/packages/docregistry/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/docregistry/babel.config.js b/packages/docregistry/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/docregistry/babel.config.js
+++ b/packages/docregistry/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/docregistry/jest.config.js b/packages/docregistry/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/docregistry/jest.config.js
+++ b/packages/docregistry/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/docregistry/package.json b/packages/docregistry/package.json
index 14803cdec2b4..24d886318c2c 100644
--- a/packages/docregistry/package.json
+++ b/packages/docregistry/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/docregistry",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Document Registry",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,38 +37,36 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docprovider": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/docregistry/src/context.ts b/packages/docregistry/src/context.ts
index ef5df6f109b2..6e85286fa944 100644
--- a/packages/docregistry/src/context.ts
+++ b/packages/docregistry/src/context.ts
@@ -1,22 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { DocumentChange, ISharedDocument } from '@jupyterlab/shared-models';
 import {
   Dialog,
   ISessionContext,
   SessionContext,
-  sessionContextDialogs,
+  SessionContextDialogs,
   showDialog,
   showErrorMessage
 } from '@jupyterlab/apputils';
-import { PageConfig, PathExt } from '@jupyterlab/coreutils';
-import {
-  IDocumentProvider,
-  IDocumentProviderFactory,
-  ProviderMock
-} from '@jupyterlab/docprovider';
-import { IModelDB, ModelDB } from '@jupyterlab/observables';
+import { PathExt } from '@jupyterlab/coreutils';
 import { RenderMimeRegistry } from '@jupyterlab/rendermime';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import {
@@ -29,10 +22,12 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+
 import { PartialJSONValue, PromiseDelegate } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
+
 import { DocumentRegistry } from './registry';
 
 /**
@@ -42,7 +37,8 @@ import { DocumentRegistry } from './registry';
  */
 export class Context<
   T extends DocumentRegistry.IModel = DocumentRegistry.IModel
-> implements DocumentRegistry.IContext<T> {
+> implements DocumentRegistry.IContext<T>
+{
   /**
    * Construct a new document context.
    */
@@ -51,42 +47,30 @@ export class Context<
     this.translator = options.translator || nullTranslator;
     this._trans = this.translator.load('jupyterlab');
     this._factory = options.factory;
-    this._dialogs = options.sessionDialogs || sessionContextDialogs;
+    this._dialogs =
+      options.sessionDialogs ??
+      new SessionContextDialogs({ translator: options.translator });
     this._opener = options.opener || Private.noOp;
     this._path = this._manager.contents.normalize(options.path);
     this._lastModifiedCheckMargin = options.lastModifiedCheckMargin || 500;
     const localPath = this._manager.contents.localPath(this._path);
     const lang = this._factory.preferredLanguage(PathExt.basename(localPath));
 
-    const dbFactory = options.modelDBFactory;
-    if (dbFactory) {
-      const localPath = manager.contents.localPath(this._path);
-      this._modelDB = dbFactory.createNew(localPath);
-      this._model = this._factory.createNew(
-        lang,
-        this._modelDB,
-        false,
-        PageConfig.getOption('collaborative') === 'true'
-      );
-    } else {
-      this._model = this._factory.createNew(
-        lang,
-        undefined,
-        false,
-        PageConfig.getOption('collaborative') === 'true'
-      );
-    }
+    const sharedFactory = this._manager.contents.getSharedModelFactory(
+      this._path
+    );
+    const sharedModel = sharedFactory?.createNew({
+      path: localPath,
+      format: this._factory.fileFormat,
+      contentType: this._factory.contentType,
+      collaborative: this._factory.collaborative
+    });
 
-    const docProviderFactory = options.docProviderFactory;
-    this._provider = docProviderFactory
-      ? docProviderFactory({
-          path: this._path,
-          contentType: this._factory.contentType,
-          format: this._factory.fileFormat!,
-          model: this._model.sharedModel,
-          collaborative: this._model.collaborative
-        })
-      : new ProviderMock();
+    this._model = this._factory.createNew({
+      languagePreference: lang,
+      sharedModel,
+      collaborationEnabled: sharedFactory?.collaborative ?? false
+    });
 
     this._readyPromise = manager.ready.then(() => {
       return this._populatedPromise.promise;
@@ -96,7 +80,7 @@ export class Context<
     this.sessionContext = new SessionContext({
       sessionManager: manager.sessions,
       specsManager: manager.kernelspecs,
-      path: this._path,
+      path: localPath,
       type: ext === '.ipynb' ? 'notebook' : 'file',
       name: PathExt.basename(localPath),
       kernelPreference: options.kernelPreference || { shouldStart: false },
@@ -109,7 +93,6 @@ export class Context<
       path: this._path,
       contents: manager.contents
     });
-    this.model.sharedModel.changed.connect(this.onStateChanged, this);
   }
 
   /**
@@ -122,7 +105,7 @@ export class Context<
   /**
    * A signal emitted when the model is saved or reverted.
    */
-  get fileChanged(): ISignal<this, Contents.IModel> {
+  get fileChanged(): ISignal<this, Omit<Contents.IModel, 'content'>> {
     return this._fileChanged;
   }
 
@@ -180,14 +163,14 @@ export class Context<
   }
 
   /**
-   * The current contents model associated with the document.
+   * The document metadata, stored as a services contents model.
    *
    * #### Notes
-   * The contents model will be null until the context is populated.
-   * It will have an  empty `contents` field.
+   * The contents model will be `null` until the context is populated.
+   * It will not have a `content` field.
    */
-  get contentsModel(): Contents.IModel | null {
-    return this._contentsModel;
+  get contentsModel(): Omit<Contents.IModel, 'content'> | null {
+    return this._contentsModel ? { ...this._contentsModel } : null;
   }
 
   /**
@@ -216,11 +199,9 @@ export class Context<
     }
     this._isDisposed = true;
     this.sessionContext.dispose();
-    if (this._modelDB) {
-      this._modelDB.dispose();
-    }
     this._model.dispose();
-    this._provider.dispose();
+    // Ensure we dispose the `sharedModel` as it may have been generated in the context
+    // through the shared model factory.
     this._model.sharedModel.dispose();
     this._disposed.emit(void 0);
     Signal.clearData(this);
@@ -260,15 +241,10 @@ export class Context<
    * @returns a promise that resolves upon initialization.
    */
   async initialize(isNew: boolean) {
-    if (this._model.collaborative) {
-      await this._loadContext();
+    if (isNew) {
+      await this._save();
     } else {
-      if (isNew) {
-        await this._save();
-      } else {
-        await this._revert();
-      }
-      this._model.initialize();
+      await this._revert();
     }
     this.model.sharedModel.clearUndoHistory();
   }
@@ -431,38 +407,6 @@ export class Context<
     });
   }
 
-  protected onStateChanged(sender: ISharedDocument, changes: DocumentChange) {
-    if (changes.stateChange) {
-      changes.stateChange.forEach(change => {
-        if (change.name === 'path') {
-          const driveName = this._manager.contents.driveName(this._path);
-          let newPath = change.newValue;
-          if (driveName) {
-            newPath = `${driveName}:${change.newValue}`;
-          }
-
-          if (this._path !== newPath) {
-            this._path = newPath;
-            const localPath = this._manager.contents.localPath(newPath);
-            const name = PathExt.basename(localPath);
-            this.sessionContext.session?.setPath(newPath) as any;
-            void this.sessionContext.session?.setName(name);
-            (this.urlResolver as RenderMimeRegistry.UrlResolver).path = newPath;
-            if (this._contentsModel) {
-              const contentsModel = {
-                ...this._contentsModel,
-                name: name,
-                path: newPath
-              };
-              this._updateContentsModel(contentsModel);
-            }
-            this._pathChanged.emit(newPath);
-          }
-        }
-      });
-    }
-  }
-
   /**
    * Handle a change on the contents manager.
    */
@@ -491,19 +435,11 @@ export class Context<
           path: newPath
         };
       }
-      this._path = newPath;
-      const updateModel = {
+      this._updateContentsModel({
         ...this._contentsModel,
         ...changeModel
-      };
-
-      const localPath = this._manager.contents.localPath(newPath);
-      void this.sessionContext.session?.setPath(newPath);
-      void this.sessionContext.session?.setName(PathExt.basename(localPath));
-      (this.urlResolver as RenderMimeRegistry.UrlResolver).path = newPath;
-      this._updateContentsModel(updateModel as Contents.IModel);
-      this._model.sharedModel.setState('path', localPath);
-      this._pathChanged.emit(newPath);
+      } as Contents.IModel);
+      this._updatePath(newPath);
     }
   }
 
@@ -514,55 +450,77 @@ export class Context<
     if (type !== 'path') {
       return;
     }
-    const path = this.sessionContext.session!.path;
-    if (path !== this._path) {
-      this._path = path;
-      const localPath = this._manager.contents.localPath(path);
-      const name = PathExt.basename(localPath);
-      (this.urlResolver as RenderMimeRegistry.UrlResolver).path = path;
-      if (this._contentsModel) {
-        const contentsModel = {
-          ...this._contentsModel,
-          name: name,
-          path: path
-        };
-        this._updateContentsModel(contentsModel);
-      }
-      this._model.sharedModel.setState('path', localPath);
-      this._pathChanged.emit(path);
+
+    // The session uses local paths.
+    // We need to convert it to a global path.
+    const driveName = this._manager.contents.driveName(this.path);
+    let newPath = this.sessionContext.session!.path;
+    if (driveName) {
+      newPath = `${driveName}:${newPath}`;
     }
+    this._updatePath(newPath);
   }
 
   /**
    * Update our contents model, without the content.
    */
-  private _updateContentsModel(model: Contents.IModel): void {
+  private _updateContentsModel(
+    model: Contents.IModel | Omit<Contents.IModel, 'content'>
+  ): void {
     const writable = model.writable && !this._model.collaborative;
-    const newModel: Contents.IModel = {
+    const newModel: Omit<Contents.IModel, 'content'> = {
       path: model.path,
       name: model.name,
       type: model.type,
-      content: undefined,
       writable,
       created: model.created,
       last_modified: model.last_modified,
       mimetype: model.mimetype,
       format: model.format
     };
-    const mod = this._contentsModel ? this._contentsModel.last_modified : null;
+    const mod = this._contentsModel?.last_modified ?? null;
     this._contentsModel = newModel;
-    this._model.sharedModel.setState('last_modified', newModel.last_modified);
     if (!mod || newModel.last_modified !== mod) {
       this._fileChanged.emit(newModel);
     }
   }
 
+  private _updatePath(newPath: string): void {
+    if (this._path === newPath) {
+      return;
+    }
+
+    this._path = newPath;
+    const localPath = this._manager.contents.localPath(newPath);
+    const name = PathExt.basename(localPath);
+    if (this.sessionContext.session?.path !== localPath) {
+      void this.sessionContext.session?.setPath(localPath);
+    }
+    if (this.sessionContext.session?.name !== name) {
+      void this.sessionContext.session?.setName(name);
+    }
+    if ((this.urlResolver as RenderMimeRegistry.UrlResolver).path !== newPath) {
+      (this.urlResolver as RenderMimeRegistry.UrlResolver).path = newPath;
+    }
+    if (
+      this._contentsModel &&
+      (this._contentsModel.path !== newPath ||
+        this._contentsModel.name !== name)
+    ) {
+      const contentsModel = {
+        ...this._contentsModel,
+        name: name,
+        path: newPath
+      };
+      this._updateContentsModel(contentsModel);
+    }
+    this._pathChanged.emit(newPath);
+  }
+
   /**
    * Handle an initial population.
    */
   private async _populate(): Promise<void> {
-    await this._provider.ready;
-
     this._isPopulated = true;
     this._isReady = true;
     this._populatedPromise.resolve(void 0);
@@ -586,7 +544,7 @@ export class Context<
     // any kernel has started.
     void this.sessionContext.initialize().then(shouldSelect => {
       if (shouldSelect) {
-        void this._dialogs.selectKernel(this.sessionContext, this.translator);
+        void this._dialogs.selectKernel(this.sessionContext);
       }
     });
   }
@@ -607,32 +565,18 @@ export class Context<
 
     // rename triggers a fileChanged which updates the contents model
     await this._manager.contents.rename(this.path, newPath);
-    await this.sessionContext.session?.setPath(newPath);
-    await this.sessionContext.session?.setName(newName);
-
-    this._path = newPath;
-    const localPath = this._manager.contents.localPath(this._path);
-    (this.urlResolver as RenderMimeRegistry.UrlResolver).path = newPath;
-    this._model.sharedModel.setState('path', localPath);
-    this._pathChanged.emit(newPath);
   }
 
   /**
    * Save the document contents to disk.
    */
   private async _save(): Promise<void> {
-    // if collaborative mode is enabled, saving happens in the back-end
-    // after each change to the document
-    if (this._model.collaborative) {
-      return;
-    }
     this._saveState.emit('started');
     const options = this._createSaveOptions();
 
     try {
-      let value: Contents.IModel;
       await this._manager.ready;
-      value = await this._maybeSave(options);
+      const value = await this._maybeSave(options);
       if (this.isDisposed) {
         return;
       }
@@ -647,22 +591,19 @@ export class Context<
       // Emit completion.
       this._saveState.emit('completed');
     } catch (err) {
-      // If the save has been canceled by the user,
-      // throw the error so that whoever called save()
-      // can decide what to do.
-      if (
-        err.message === 'Cancel' ||
-        err.message === 'Modal is already displayed'
-      ) {
+      // If the save has been canceled by the user, throw the error
+      // so that whoever called save() can decide what to do.
+      const { name } = err;
+      if (name === 'ModalCancelError' || name === 'ModalDuplicateError') {
         throw err;
       }
 
       // Otherwise show an error message and throw the error.
       const localPath = this._manager.contents.localPath(this._path);
-      const name = PathExt.basename(localPath);
+      const file = PathExt.basename(localPath);
       void this._handleError(
         err,
-        this._trans.__('File Save Error for %1', name)
+        this._trans.__('File Save Error for %1', file)
       );
 
       // Emit failure.
@@ -671,47 +612,6 @@ export class Context<
     }
   }
 
-  /**
-   * Load the metadata of the document without the content.
-   */
-  private _loadContext(): Promise<void> {
-    const opts: Contents.IFetchOptions = {
-      type: this._factory.contentType,
-      content: false,
-      ...(this._factory.fileFormat !== null
-        ? { format: this._factory.fileFormat }
-        : {})
-    };
-    const path = this._path;
-    return this._manager.ready
-      .then(() => {
-        return this._manager.contents.get(path, opts);
-      })
-      .then(contents => {
-        if (this.isDisposed) {
-          return;
-        }
-        const model = {
-          ...contents,
-          format: this._factory.fileFormat
-        };
-        this._updateContentsModel(model);
-        this._model.dirty = false;
-        if (!this._isPopulated) {
-          return this._populate();
-        }
-      })
-      .catch(async err => {
-        const localPath = this._manager.contents.localPath(this._path);
-        const name = PathExt.basename(localPath);
-        void this._handleError(
-          err,
-          this._trans.__('File Load Error for %1', name)
-        );
-        throw err;
-      });
-  }
-
   /**
    * Revert the document contents to disk contents.
    *
@@ -736,23 +636,26 @@ export class Context<
         if (this.isDisposed) {
           return;
         }
-        if (contents.format === 'json') {
-          model.fromJSON(contents.content);
-        } else {
-          let content = contents.content;
-          // Convert line endings if necessary, marking the file
-          // as dirty.
-          if (content.indexOf('\r\n') !== -1) {
-            this._lineEnding = '\r\n';
-            content = content.replace(/\r\n/g, '\n');
-          } else if (content.indexOf('\r') !== -1) {
-            this._lineEnding = '\r';
-            content = content.replace(/\r/g, '\n');
+        if (contents.content) {
+          if (contents.format === 'json') {
+            model.fromJSON(contents.content);
           } else {
-            this._lineEnding = null;
+            let content = contents.content;
+            // Convert line endings if necessary, marking the file
+            // as dirty.
+            if (content.indexOf('\r\n') !== -1) {
+              this._lineEnding = '\r\n';
+              content = content.replace(/\r\n/g, '\n');
+            } else if (content.indexOf('\r') !== -1) {
+              this._lineEnding = '\r';
+              content = content.replace(/\r/g, '\n');
+            } else {
+              this._lineEnding = null;
+            }
+            model.fromString(content);
           }
-          model.fromString(content);
         }
+
         this._updateContentsModel(contents);
         model.dirty = false;
         if (!this._isPopulated) {
@@ -788,11 +691,7 @@ export class Context<
         // (our last save)
         // In some cases the filesystem reports an inconsistent time, so we allow buffer when comparing.
         const lastModifiedCheckMargin = this._lastModifiedCheckMargin;
-        const ycontextModified = this._model.sharedModel.getState(
-          'last_modified'
-        ) as string;
-        // prefer using the timestamp from the state because it is more up to date
-        const modified = ycontextModified || this.contentsModel?.last_modified;
+        const modified = this.contentsModel?.last_modified;
         const tClient = modified ? new Date(modified) : new Date();
         const tDisk = new Date(model.last_modified);
         if (
@@ -863,7 +762,9 @@ export class Context<
         `${tDisk}`
     );
     if (this._timeConflictModalIsOpen) {
-      return Promise.reject(new Error('Modal is already displayed'));
+      const error = new Error('Modal is already displayed');
+      error.name = 'ModalDuplicateError';
+      return Promise.reject(error);
     }
     const body = this._trans.__(
       `"%1" has changed on disk since the last time it was opened or saved.
@@ -871,9 +772,13 @@ Do you want to overwrite the file on disk with the version open here,
 or load the version on disk (revert)?`,
       this.path
     );
-    const revertBtn = Dialog.okButton({ label: this._trans.__('Revert') });
+    const revertBtn = Dialog.okButton({
+      label: this._trans.__('Revert'),
+      actions: ['revert']
+    });
     const overwriteBtn = Dialog.warnButton({
-      label: this._trans.__('Overwrite')
+      label: this._trans.__('Overwrite'),
+      actions: ['overwrite']
     });
     this._timeConflictModalIsOpen = true;
     return showDialog({
@@ -885,16 +790,17 @@ or load the version on disk (revert)?`,
       if (this.isDisposed) {
         return Promise.reject(new Error('Disposed'));
       }
-      if (result.button.label === this._trans.__('Overwrite')) {
+      if (result.button.actions.includes('overwrite')) {
         return this._manager.contents.save(this._path, options);
       }
-      // FIXME-TRANS: Why compare to label?
-      if (result.button.label === this._trans.__('Revert')) {
+      if (result.button.actions.includes('revert')) {
         return this.revert().then(() => {
           return model;
         });
       }
-      return Promise.reject(new Error('Cancel')); // Otherwise cancel the save.
+      const error = new Error('Cancel');
+      error.name = 'ModalCancelError';
+      return Promise.reject(error); // Otherwise cancel the save.
     });
   }
 
@@ -907,7 +813,8 @@ or load the version on disk (revert)?`,
       path
     );
     const overwriteBtn = Dialog.warnButton({
-      label: this._trans.__('Overwrite')
+      label: this._trans.__('Overwrite'),
+      accept: true
     });
     return showDialog({
       title: this._trans.__('File Overwrite?'),
@@ -917,8 +824,8 @@ or load the version on disk (revert)?`,
       if (this.isDisposed) {
         return Promise.reject(new Error('Disposed'));
       }
-      // FIXME-TRANS: Why compare to label?
-      if (result.button.label === this._trans.__('Overwrite')) {
+
+      if (result.button.accept) {
         return this._manager.contents.delete(path).then(() => {
           return this._finishSaveAs(path);
         });
@@ -983,29 +890,32 @@ or load the version on disk (revert)?`,
   }
 
   protected translator: ITranslator;
+
+  private _isReady = false;
+  private _isDisposed = false;
+  private _isPopulated = false;
   private _trans: TranslationBundle;
   private _manager: ServiceManager.IManager;
   private _opener: (
     widget: Widget,
     options?: DocumentRegistry.IOpenOptions
   ) => void;
+
   private _model: T;
-  private _modelDB: IModelDB;
   private _path = '';
   private _lineEnding: string | null = null;
   private _factory: DocumentRegistry.IModelFactory<T>;
-  private _contentsModel: Contents.IModel | null = null;
+  private _contentsModel: Omit<Contents.IModel, 'content'> | null = null;
+
   private _readyPromise: Promise<void>;
   private _populatedPromise = new PromiseDelegate<void>();
-  private _isPopulated = false;
-  private _isReady = false;
-  private _isDisposed = false;
   private _pathChanged = new Signal<this, string>(this);
-  private _fileChanged = new Signal<this, Contents.IModel>(this);
+  private _fileChanged = new Signal<this, Omit<Contents.IModel, 'content'>>(
+    this
+  );
   private _saveState = new Signal<this, DocumentRegistry.SaveState>(this);
   private _disposed = new Signal<this, void>(this);
   private _dialogs: ISessionContext.IDialogs;
-  private _provider: IDocumentProvider;
   private _lastModifiedCheckMargin = 500;
   private _timeConflictModalIsOpen = false;
 }
@@ -1033,30 +943,11 @@ export namespace Context {
      */
     path: string;
 
-    /**
-     * Whether the model is collaborative.
-     *
-     * @deprecated It will be removed in 4.0.0. The collaborative feature
-     * is provided by the `DocumentRegistry.IModel` (can be customized by the
-     * `DocumentRegistry.IModelFactory`)
-     */
-    collaborative?: boolean;
-
     /**
      * The kernel preference associated with the context.
      */
     kernelPreference?: ISessionContext.IKernelPreference;
 
-    /**
-     * An factory method for the document provider.
-     */
-    docProviderFactory?: IDocumentProviderFactory<ISharedDocument>;
-
-    /**
-     * An IModelDB factory method which may be used for the document.
-     */
-    modelDBFactory?: ModelDB.IFactory;
-
     /**
      * An optional callback for opening sibling widgets.
      */
@@ -1098,14 +989,13 @@ namespace Private {
     translator = translator || nullTranslator;
     const trans = translator.load('jupyterlab');
 
-    const saveBtn = Dialog.okButton({ label: trans.__('Save') });
+    const saveBtn = Dialog.okButton({ label: trans.__('Save'), accept: true });
     return showDialog({
-      title: trans.__('Save File As..'),
+      title: trans.__('Save File As…'),
       body: new SaveWidget(path),
       buttons: [Dialog.cancelButton(), saveBtn]
     }).then(result => {
-      // FIXME-TRANS: Why use the label?
-      if (result.button.label === trans.__('Save')) {
+      if (result.button.accept) {
         return result.value ?? undefined;
       }
       return;
diff --git a/packages/docregistry/src/default.ts b/packages/docregistry/src/default.ts
index eae4f8e6ad27..d72aa16d83d3 100644
--- a/packages/docregistry/src/default.ts
+++ b/packages/docregistry/src/default.ts
@@ -3,11 +3,10 @@
 
 import { MainAreaWidget, setToolbar } from '@jupyterlab/apputils';
 import { CodeEditor } from '@jupyterlab/codeeditor';
-import { Mode } from '@jupyterlab/codemirror';
 import { IChangedArgs, PathExt } from '@jupyterlab/coreutils';
-import { IModelDB, IObservableList } from '@jupyterlab/observables';
+import { IObservableList } from '@jupyterlab/observables';
 import { Contents } from '@jupyterlab/services';
-import * as models from '@jupyterlab/shared-models';
+import { DocumentChange, FileChange, ISharedFile } from '@jupyter/ydoc';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { PartialJSONValue } from '@lumino/coreutils';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -19,23 +18,17 @@ import { DocumentRegistry, IDocumentWidget } from './index';
  */
 export class DocumentModel
   extends CodeEditor.Model
-  implements DocumentRegistry.ICodeModel {
+  implements DocumentRegistry.ICodeModel
+{
   /**
    * Construct a new document model.
    */
-  constructor(
-    languagePreference?: string,
-    modelDB?: IModelDB,
-    collaborationEnabled?: boolean
-  ) {
-    super({ modelDB });
-    this._defaultLang = languagePreference || '';
-    const filemodel = new models.YFile() as models.ISharedFile;
-    this.switchSharedModel(filemodel, true);
-    this.value.changed.connect(this.triggerContentChange, this);
+  constructor(options: DocumentRegistry.IModelOptions<ISharedFile> = {}) {
+    super({ sharedModel: options.sharedModel });
+    this._defaultLang = options.languagePreference ?? '';
+    this._collaborationEnabled = !!options.collaborationEnabled;
 
     this.sharedModel.changed.connect(this._onStateChanged, this);
-    this._collaborationEnabled = !!collaborationEnabled;
   }
 
   /**
@@ -117,7 +110,7 @@ export class DocumentModel
    * Serialize the model to a string.
    */
   toString(): string {
-    return this.value.text;
+    return this.sharedModel.getSource();
   }
 
   /**
@@ -127,14 +120,14 @@ export class DocumentModel
    * Should emit a [contentChanged] signal.
    */
   fromString(value: string): void {
-    this.value.text = value;
+    this.sharedModel.setSource(value);
   }
 
   /**
    * Serialize the model to JSON.
    */
   toJSON(): PartialJSONValue {
-    return JSON.parse(this.value.text || 'null');
+    return JSON.parse(this.sharedModel.getSource() || 'null');
   }
 
   /**
@@ -169,11 +162,8 @@ export class DocumentModel
     this.dirty = true;
   }
 
-  private _onStateChanged(
-    sender: models.ISharedFile,
-    changes: models.DocumentChange
-  ): void {
-    if ((changes as models.FileChange).sourceChange) {
+  private _onStateChanged(sender: ISharedFile, changes: DocumentChange): void {
+    if ((changes as FileChange).sourceChange) {
       this.triggerContentChange();
     }
     if (changes.stateChange) {
@@ -197,7 +187,7 @@ export class DocumentModel
   /**
    * The shared notebook model.
    */
-  readonly sharedModel: models.ISharedFile;
+  readonly sharedModel: ISharedFile;
   private _defaultLang = '';
   private _dirty = false;
   private _readOnly = false;
@@ -270,29 +260,25 @@ export class TextModelFactory implements DocumentRegistry.CodeModelFactory {
   /**
    * Create a new model.
    *
-   * @param languagePreference - An optional kernel language preference.
-   * @param modelDB - An optional model storage.
-   * @param isInitialized - Whether the model is initialized or not.
-   * @param collaborationEnabled - Whether collaboration is enabled at the application level or not (default `false`).
+   * @param options - Model options.
    *
    * @returns A new document model.
    */
   createNew(
-    languagePreference?: string,
-    modelDB?: IModelDB,
-    isInitialized?: boolean,
-    collaborationEnabled?: boolean
+    options: DocumentRegistry.IModelOptions<ISharedFile> = {}
   ): DocumentRegistry.ICodeModel {
-    const collaborative = collaborationEnabled && this.collaborative;
-    return new DocumentModel(languagePreference, modelDB, collaborative);
+    const collaborative = options.collaborationEnabled && this.collaborative;
+    return new DocumentModel({
+      ...options,
+      collaborationEnabled: collaborative
+    });
   }
 
   /**
    * Get the preferred kernel language given a file path.
    */
   preferredLanguage(path: string): string {
-    const mode = Mode.findByFileName(path);
-    return mode && mode.mode;
+    return '';
   }
 
   private _isDisposed = false;
@@ -339,13 +325,15 @@ export class Base64ModelFactory extends TextModelFactory {
 export abstract class ABCWidgetFactory<
   T extends IDocumentWidget,
   U extends DocumentRegistry.IModel = DocumentRegistry.IModel
-> implements DocumentRegistry.IWidgetFactory<T, U> {
+> implements DocumentRegistry.IWidgetFactory<T, U>
+{
   /**
    * Construct a new `ABCWidgetFactory`.
    */
   constructor(options: DocumentRegistry.IWidgetFactoryOptions<T>) {
     this._translator = options.translator || nullTranslator;
     this._name = options.name;
+    this._label = options.label || options.name;
     this._readOnly = options.readOnly === undefined ? false : options.readOnly;
     this._defaultFor = options.defaultFor ? options.defaultFor.slice() : [];
     this._defaultRendered = (options.defaultRendered || []).slice();
@@ -354,6 +342,7 @@ export abstract class ABCWidgetFactory<
     this._preferKernel = !!options.preferKernel;
     this._canStartKernel = !!options.canStartKernel;
     this._shutdownOnClose = !!options.shutdownOnClose;
+    this._autoStartDefault = !!options.autoStartDefault;
     this._toolbarFactory = options.toolbarFactory;
   }
 
@@ -391,12 +380,20 @@ export abstract class ABCWidgetFactory<
   }
 
   /**
-   * The name of the widget to display in dialogs.
+   * A unique name identifying of the widget.
    */
   get name(): string {
     return this._name;
   }
 
+  /**
+   * The label of the widget to display in dialogs.
+   * If not given, name is used instead.
+   */
+  get label(): string {
+    return this._label;
+  }
+
   /**
    * The file types the widget can view.
    */
@@ -457,6 +454,16 @@ export abstract class ABCWidgetFactory<
     this._shutdownOnClose = value;
   }
 
+  /**
+   * Whether to automatically select the preferred kernel during a kernel start
+   */
+  get autoStartDefault(): boolean {
+    return this._autoStartDefault;
+  }
+  set autoStartDefault(value: boolean) {
+    this._autoStartDefault = value;
+  }
+
   /**
    * Create a new widget given a document model and a context.
    *
@@ -504,6 +511,8 @@ export abstract class ABCWidgetFactory<
   private _isDisposed = false;
   private _translator: ITranslator;
   private _name: string;
+  private _label: string;
+  private _autoStartDefault: boolean;
   private _readOnly: boolean;
   private _canStartKernel: boolean;
   private _shutdownOnClose: boolean;
@@ -530,7 +539,8 @@ export class DocumentWidget<
     U extends DocumentRegistry.IModel = DocumentRegistry.IModel
   >
   extends MainAreaWidget<T>
-  implements IDocumentWidget<T, U> {
+  implements IDocumentWidget<T, U>
+{
   constructor(options: DocumentWidget.IOptions<T, U>) {
     // Include the context ready promise in the widget reveal promise
     options.reveal = Promise.all([options.reveal, options.context.ready]);
@@ -565,7 +575,9 @@ export class DocumentWidget<
   private async _onTitleChanged(_sender: Title<this>) {
     const validNameExp = /[\/\\:]/;
     const name = this.title.label;
-    const filename = this.context.path.split('/').pop()!;
+    // Use localPath to avoid the drive name
+    const filename =
+      this.context.localPath.split('/').pop() || this.context.localPath;
 
     if (name === filename) {
       return;
diff --git a/packages/docregistry/src/mimedocument.ts b/packages/docregistry/src/mimedocument.ts
index 1f9997a71d20..652379935f8f 100644
--- a/packages/docregistry/src/mimedocument.ts
+++ b/packages/docregistry/src/mimedocument.ts
@@ -81,7 +81,7 @@ export class MimeContent extends Widget {
   /**
    * Print method. Deferred to the renderer.
    */
-  [Printing.symbol]() {
+  [Printing.symbol](): Printing.OptionalAsyncThunk {
     return Printing.getPrintFunction(this.renderer);
   }
 
@@ -95,7 +95,7 @@ export class MimeContent extends Widget {
   /**
    * Set URI fragment identifier.
    */
-  setFragment(fragment: string) {
+  setFragment(fragment: string): void {
     this._fragment = fragment;
     this.update();
   }
@@ -296,7 +296,8 @@ export class MimeDocumentFactory extends ABCWidgetFactory<MimeDocument> {
         resolver: rendermime.resolver,
         sanitizer: rendermime.sanitizer,
         linkHandler: rendermime.linkHandler,
-        latexTypesetter: rendermime.latexTypesetter
+        latexTypesetter: rendermime.latexTypesetter,
+        markdownParser: rendermime.markdownParser
       });
     } else {
       renderer = rendermime.createRenderer(mimeType);
@@ -310,7 +311,7 @@ export class MimeDocumentFactory extends ABCWidgetFactory<MimeDocument> {
       dataType: this._dataType
     });
 
-    content.title.icon = ft?.icon!;
+    content.title.icon = ft?.icon;
     content.title.iconClass = ft?.iconClass ?? '';
     content.title.iconLabel = ft?.iconLabel ?? '';
 
diff --git a/packages/docregistry/src/registry.ts b/packages/docregistry/src/registry.ts
index a0da60705468..5d17daedeaba 100644
--- a/packages/docregistry/src/registry.ts
+++ b/packages/docregistry/src/registry.ts
@@ -1,20 +1,16 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ISessionContext,
-  Toolbar,
-  ToolbarRegistry
-} from '@jupyterlab/apputils';
+import { ISessionContext, ToolbarRegistry } from '@jupyterlab/apputils';
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import {
   IChangedArgs as IChangedArgsGeneric,
   PathExt
 } from '@jupyterlab/coreutils';
-import { IModelDB, IObservableList } from '@jupyterlab/observables';
+import { IObservableList } from '@jupyterlab/observables';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { Contents, Kernel } from '@jupyterlab/services';
-import { ISharedDocument, ISharedFile } from '@jupyterlab/shared-models';
+import { ISharedDocument, ISharedFile } from '@jupyter/ydoc';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import {
   fileIcon,
@@ -29,17 +25,10 @@ import {
   pythonIcon,
   rKernelIcon,
   spreadsheetIcon,
+  Toolbar,
   yamlIcon
 } from '@jupyterlab/ui-components';
-import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  empty,
-  find,
-  IIterator,
-  map
-} from '@lumino/algorithm';
+import { ArrayExt, find } from '@lumino/algorithm';
 import { PartialJSONValue, ReadonlyPartialJSONValue } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -318,9 +307,8 @@ export class DocumentRegistry implements IDisposable {
           }
         });
       if (!this._defaultWidgetFactories[fileTypeName]) {
-        this._defaultWidgetFactories[
-          fileTypeName
-        ] = this._widgetFactoriesForFileType[fileTypeName][0];
+        this._defaultWidgetFactories[fileTypeName] =
+          this._widgetFactoriesForFileType[fileTypeName][0];
       }
     }
 
@@ -405,34 +393,34 @@ export class DocumentRegistry implements IDisposable {
     }
 
     // Add the file type factories in registration order.
-    fts.forEach(ft => {
+    for (const ft of fts) {
       if (ft.name in this._widgetFactoriesForFileType) {
-        each(this._widgetFactoriesForFileType[ft.name], n => {
+        for (const n of this._widgetFactoriesForFileType[ft.name]) {
           factories.add(n);
-        });
+        }
       }
-    });
+    }
 
     // Add the rest of the global factories, in registration order.
     if ('*' in this._widgetFactoriesForFileType) {
-      each(this._widgetFactoriesForFileType['*'], n => {
+      for (const n of this._widgetFactoriesForFileType['*']) {
         factories.add(n);
-      });
+      }
     }
 
     // Construct the return list, checking to make sure the corresponding
     // model factories are registered.
     const factoryList: DocumentRegistry.WidgetFactory[] = [];
-    factories.forEach(name => {
+    for (const name of factories) {
       const factory = this._widgetFactories[name];
       if (!factory) {
-        return;
+        continue;
       }
       const modelName = factory.modelName || 'text';
       if (modelName in this._modelFactories) {
         factoryList.push(factory);
       }
-    });
+    }
 
     return factoryList;
   }
@@ -545,10 +533,10 @@ export class DocumentRegistry implements IDisposable {
    *
    * @returns A new iterator of widget factories.
    */
-  widgetFactories(): IIterator<DocumentRegistry.WidgetFactory> {
-    return map(Object.keys(this._widgetFactories), name => {
-      return this._widgetFactories[name];
-    });
+  *widgetFactories(): IterableIterator<DocumentRegistry.WidgetFactory> {
+    for (const name in this._widgetFactories) {
+      yield this._widgetFactories[name];
+    }
   }
 
   /**
@@ -556,10 +544,10 @@ export class DocumentRegistry implements IDisposable {
    *
    * @returns A new iterator of model factories.
    */
-  modelFactories(): IIterator<DocumentRegistry.ModelFactory> {
-    return map(Object.keys(this._modelFactories), name => {
-      return this._modelFactories[name];
-    });
+  *modelFactories(): IterableIterator<DocumentRegistry.ModelFactory> {
+    for (const name in this._modelFactories) {
+      yield this._modelFactories[name];
+    }
   }
 
   /**
@@ -569,14 +557,15 @@ export class DocumentRegistry implements IDisposable {
    *
    * @returns A new iterator over the widget extensions.
    */
-  widgetExtensions(
+  *widgetExtensions(
     widgetName: string
-  ): IIterator<DocumentRegistry.WidgetExtension> {
+  ): IterableIterator<DocumentRegistry.WidgetExtension> {
     widgetName = widgetName.toLowerCase();
-    if (!(widgetName in this._extenders)) {
-      return empty<DocumentRegistry.WidgetExtension>();
+    if (widgetName in this._extenders) {
+      for (const extension of this._extenders[widgetName]) {
+        yield extension;
+      }
     }
-    return new ArrayIterator(this._extenders[widgetName]);
   }
 
   /**
@@ -584,8 +573,10 @@ export class DocumentRegistry implements IDisposable {
    *
    * @returns A new iterator of file types.
    */
-  fileTypes(): IIterator<DocumentRegistry.IFileType> {
-    return new ArrayIterator(this._fileTypes);
+  *fileTypes(): IterableIterator<DocumentRegistry.IFileType> {
+    for (const type of this._fileTypes) {
+      yield type;
+    }
   }
 
   /**
@@ -658,7 +649,8 @@ export class DocumentRegistry implements IDisposable {
       language,
       shouldStart: widgetFactory.preferKernel,
       canStart: widgetFactory.canStartKernel,
-      shutdownOnDispose: widgetFactory.shutdownOnClose
+      shutdownOnDispose: widgetFactory.shutdownOnClose,
+      autoStartDefault: widgetFactory.autoStartDefault
     };
   }
 
@@ -742,9 +734,8 @@ export class DocumentRegistry implements IDisposable {
   private _defaultWidgetFactoryOverrides: {
     [key: string]: string;
   } = Object.create(null);
-  private _defaultWidgetFactories: { [key: string]: string } = Object.create(
-    null
-  );
+  private _defaultWidgetFactories: { [key: string]: string } =
+    Object.create(null);
   private _defaultRenderedWidgetFactories: {
     [key: string]: string;
   } = Object.create(null);
@@ -828,16 +819,6 @@ export namespace DocumentRegistry {
      */
     readonly defaultKernelLanguage: string;
 
-    /**
-     * The underlying `IModelDB` instance in which model
-     * data is stored.
-     *
-     * ### Notes
-     * Making direct edits to the values stored in the`IModelDB`
-     * is not recommended, and may produce unpredictable results.
-     */
-    readonly modelDB: IModelDB;
-
     /**
      * The shared notebook model.
      */
@@ -874,15 +855,6 @@ export namespace DocumentRegistry {
      * Should emit a [contentChanged] signal.
      */
     fromJSON(value: ReadonlyPartialJSONValue): void;
-
-    /**
-     * Initialize model state after initial data load.
-     *
-     * #### Notes
-     * This function must be called after the initial data is loaded to set up
-     * initial model state, such as an initial undo stack, etc.
-     */
-    initialize(): void;
   }
 
   /**
@@ -904,7 +876,7 @@ export namespace DocumentRegistry {
     /**
      * A signal emitted when the contentsModel changes.
      */
-    fileChanged: ISignal<this, Contents.IModel>;
+    fileChanged: ISignal<this, Omit<Contents.IModel, 'content'>>;
 
     /**
      * A signal emitted on the start and end of a saving operation.
@@ -948,9 +920,9 @@ export namespace DocumentRegistry {
      *
      * #### Notes
      * This will be null until the context is 'ready'. Since we only store
-     * metadata here, the `.contents` attribute will always be empty.
+     * metadata here, the `content` attribute is removed.
      */
-    readonly contentsModel: Contents.IModel | null;
+    readonly contentsModel: Omit<Contents.IModel, 'content'> | null;
 
     /**
      * The url resolver for the context.
@@ -1061,39 +1033,21 @@ export namespace DocumentRegistry {
   /**
    * The options used to initialize a widget factory.
    */
-  export interface IWidgetFactoryOptions<T extends Widget = Widget> {
+  export interface IWidgetFactoryOptions<T extends Widget = Widget>
+    extends Omit<
+      IRenderMime.IDocumentWidgetFactoryOptions,
+      'primaryFileType' | 'toolbarFactory'
+    > {
     /**
-     * The name of the widget to display in dialogs.
+     * Whether to automatically start the preferred kernel
      */
-    readonly name: string;
-
-    /**
-     * The file types the widget can view.
-     */
-    readonly fileTypes: ReadonlyArray<string>;
-
-    /**
-     * The file types for which the factory should be the default.
-     */
-    readonly defaultFor?: ReadonlyArray<string>;
-
-    /**
-     * The file types for which the factory should be the default for rendering,
-     * if that is different than the default factory (which may be for editing).
-     * If undefined, then it will fall back on the default file type.
-     */
-    readonly defaultRendered?: ReadonlyArray<string>;
+    readonly autoStartDefault?: boolean;
 
     /**
      * Whether the widget factory is read only.
      */
     readonly readOnly?: boolean;
 
-    /**
-     * The registered name of the model type used to create the widgets.
-     */
-    readonly modelName?: string;
-
     /**
      * Whether the widgets prefer having a kernel started.
      */
@@ -1109,11 +1063,6 @@ export namespace DocumentRegistry {
      */
     readonly shutdownOnClose?: boolean;
 
-    /**
-     * The application language translator.
-     */
-    readonly translator?: ITranslator;
-
     /**
      * A function producing toolbar widgets, overriding the default toolbar widgets.
      */
@@ -1155,6 +1104,15 @@ export namespace DocumentRegistry {
      * This field may be used or ignored depending on shell implementation.
      */
     rank?: number;
+
+    /**
+     * Type of widget to open
+     *
+     * #### Notes
+     * This is the key used to load user customization.
+     * Its typical value is: a factory name or the widget id (if singleton)
+     */
+    type?: string;
   }
 
   /**
@@ -1202,7 +1160,10 @@ export namespace DocumentRegistry {
   /**
    * The interface for a model factory.
    */
-  export interface IModelFactory<T extends IModel> extends IDisposable {
+  export interface IModelFactory<
+    T extends IModel,
+    U extends ISharedDocument = ISharedDocument
+  > extends IDisposable {
     /**
      * The name of the model.
      */
@@ -1226,19 +1187,11 @@ export namespace DocumentRegistry {
     /**
      * Create a new model for a given path.
      *
-     * @param languagePreference - An optional kernel language preference.
-     * @param modelDB - An optional model storage.
-     * @param isInitialized - Whether the model is initialized or not.
-     * @param collaborationEnabled - Whether collaboration is enabled at the application level or not (default `false`).
+     * @param options - Optional parameters to construct the model.
      *
      * @returns A new document model.
      */
-    createNew(
-      languagePreference?: string,
-      modelDB?: IModelDB,
-      isInitialized?: boolean,
-      collaborationEnabled?: boolean
-    ): T;
+    createNew(options?: IModelOptions<U>): T;
 
     /**
      * Get the preferred kernel language given a file path.
@@ -1246,6 +1199,24 @@ export namespace DocumentRegistry {
     preferredLanguage(path: string): string;
   }
 
+  /**
+   * The options used to create a document model.
+   */
+  export interface IModelOptions<T extends ISharedDocument = ISharedDocument> {
+    /**
+     * The preferred language.
+     */
+    languagePreference?: string;
+    /**
+     * The shared model.
+     */
+    sharedModel?: T;
+    /**
+     * Whether the model is collaborative or not.
+     */
+    collaborationEnabled?: boolean;
+  }
+
   /**
    * A type alias for a standard model factory.
    */
@@ -1259,48 +1230,12 @@ export namespace DocumentRegistry {
   /**
    * An interface for a file type.
    */
-  export interface IFileType {
-    /**
-     * The name of the file type.
-     */
-    readonly name: string;
-
-    /**
-     * The mime types associated the file type.
-     */
-    readonly mimeTypes: ReadonlyArray<string>;
-
-    /**
-     * The extensions of the file type (e.g. `".txt"`).  Can be a compound
-     * extension (e.g. `".table.json`).
-     */
-    readonly extensions: ReadonlyArray<string>;
-
-    /**
-     * An optional display name for the file type.
-     */
-    readonly displayName?: string;
-
-    /**
-     * An optional pattern for a file name (e.g. `^Dockerfile$`).
-     */
-    readonly pattern?: string;
-
+  export interface IFileType extends IRenderMime.IFileType {
     /**
      * The icon for the file type.
      */
     readonly icon?: LabIcon;
 
-    /**
-     * The icon class name for the file type.
-     */
-    readonly iconClass?: string;
-
-    /**
-     * The icon label for the file type.
-     */
-    readonly iconLabel?: string;
-
     /**
      * The content type of the new file.
      */
@@ -1617,7 +1552,7 @@ namespace Private {
   /**
    * Get the extension name of a path.
    *
-   * @param file - string.
+   * @param path - string.
    *
    * #### Notes
    * Dotted filenames (e.g. `".table.json"` are allowed).
diff --git a/packages/docregistry/src/testutils.ts b/packages/docregistry/src/testutils.ts
new file mode 100644
index 000000000000..751fe7adc9d1
--- /dev/null
+++ b/packages/docregistry/src/testutils.ts
@@ -0,0 +1,287 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+// We explicitly reference the jest typings since the jest.d.ts file shipped
+// with jest 26 masks the @types/jest typings
+
+/// <reference types="jest" />
+
+import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
+import {
+  Kernel,
+  KernelMessage,
+  ServiceManager,
+  Session
+} from '@jupyterlab/services';
+import {
+  changeKernel,
+  KERNEL_MODELS,
+  KernelMock,
+  ServiceManagerMock,
+  SessionConnectionMock
+} from '@jupyterlab/services/lib/testutils';
+import { UUID } from '@lumino/coreutils';
+import { AttachedProperty } from '@lumino/properties';
+import { ISignal, Signal } from '@lumino/signaling';
+import { Context } from './context';
+import { TextModelFactory } from './default';
+import { DocumentRegistry, IDocumentWidget } from './registry';
+
+/**
+ * Create a context for a file.
+ */
+export function createFileContext(
+  path: string = UUID.uuid4() + '.txt',
+  manager: ServiceManager.IManager = Private.getManager()
+): Context<DocumentRegistry.IModel> {
+  const factory = Private.textFactory;
+  return new Context({ manager, factory, path });
+}
+
+export async function createFileContextWithKernel(
+  path: string = UUID.uuid4() + '.txt',
+  manager: ServiceManager.IManager = Private.getManager()
+): Promise<Context> {
+  const factory = Private.textFactory;
+  const specsManager = manager.kernelspecs;
+  await specsManager.ready;
+
+  return new Context({
+    manager,
+    factory,
+    path,
+    kernelPreference: {
+      shouldStart: true,
+      canStart: true,
+      name: specsManager.specs?.default
+    }
+  });
+}
+
+export async function createFileContextWithMockedServices(
+  startKernel = false,
+  manager?: ServiceManager.IManager
+): Promise<Context> {
+  const path = UUID.uuid4() + '.txt';
+  manager = manager || new ServiceManagerMock();
+  const factory = new TextModelFactory();
+
+  const context = new Context({
+    manager: manager || new ServiceManagerMock(),
+    factory,
+    path,
+    kernelPreference: {
+      shouldStart: startKernel,
+      canStart: startKernel,
+      autoStartDefault: startKernel
+    }
+  });
+  await context.initialize(true);
+  await context.sessionContext.initialize();
+  return context;
+}
+
+/**
+ * Create a session and return a session connection.
+ */
+export async function createSession(
+  options: Session.ISessionOptions
+): Promise<Session.ISessionConnection> {
+  const manager = Private.getManager().sessions;
+  await manager.ready;
+  return manager.startNew(options);
+}
+
+/**
+ * Create a session context given a partial session model.
+ *
+ * @param model The session model to use.
+ */
+export function createSimpleSessionContext(
+  model: Private.RecursivePartial<Session.IModel> = {}
+): ISessionContext {
+  const kernel = new KernelMock({ model: model?.kernel || {} });
+  const session = new SessionConnectionMock({ model }, kernel);
+  return new SessionContextMock({}, session);
+}
+
+/**
+ * Emit an iopub message on a session context.
+ *
+ * @param sessionContext The session context
+ * @param msg Message created with `KernelMessage.createMessage`
+ */
+export function emitIopubMessage(
+  context: ISessionContext,
+  msg: KernelMessage.IIOPubMessage
+): void {
+  const kernel = context!.session!.kernel!;
+  const msgId = Private.lastMessageProperty.get(kernel);
+  (msg.parent_header as any).session = kernel.clientId;
+  (msg.parent_header as any).msg_id = msgId;
+  (kernel.iopubMessage as any).emit(msg);
+}
+
+/**
+ * Forceably change the status of a session context.
+ * An iopub message is emitted for the change.
+ *
+ * @param sessionContext The session context of interest.
+ * @param newStatus The new kernel status.
+ */
+export function updateKernelStatus(
+  sessionContext: ISessionContext,
+  newStatus: KernelMessage.Status
+): void {
+  const kernel = sessionContext.session!.kernel!;
+  (kernel as any).status = newStatus;
+  (sessionContext.statusChanged as any).emit(newStatus);
+  const msg = KernelMessage.createMessage({
+    session: kernel.clientId,
+    channel: 'iopub',
+    msgType: 'status',
+    content: { execution_state: newStatus }
+  });
+  emitIopubMessage(sessionContext, msg);
+}
+
+/**
+ * A mock session context.
+ *
+ * @param session The session connection object to use
+ */
+export const SessionContextMock = jest.fn<
+  ISessionContext,
+  [Partial<SessionContext.IOptions>, Session.ISessionConnection | null]
+>((options, connection) => {
+  const session =
+    connection ||
+    new SessionConnectionMock(
+      {
+        model: {
+          path: options.path || '',
+          type: options.type || '',
+          name: options.name || ''
+        }
+      },
+      null
+    );
+  const thisObject: ISessionContext = {
+    ...jest.requireActual('@jupyterlab/apputils'),
+    ...options,
+    path: session.path,
+    type: session.type,
+    name: session.name,
+    session,
+    dispose: jest.fn(),
+    initialize: jest.fn(() => Promise.resolve(false)),
+    ready: Promise.resolve(),
+    changeKernel: jest.fn(partialModel => {
+      return changeKernel(
+        session.kernel || Private.RUNNING_KERNELS[0],
+        partialModel!
+      );
+    }),
+    shutdown: jest.fn(() => Promise.resolve())
+  };
+
+  const disposedSignal = new Signal<ISessionContext, undefined>(thisObject);
+
+  const propertyChangedSignal = new Signal<
+    ISessionContext,
+    'path' | 'name' | 'type'
+  >(thisObject);
+
+  const statusChangedSignal = new Signal<ISessionContext, Kernel.Status>(
+    thisObject
+  );
+  const kernelChangedSignal = new Signal<
+    ISessionContext,
+    Session.ISessionConnection.IKernelChangedArgs
+  >(thisObject);
+
+  const iopubMessageSignal = new Signal<
+    ISessionContext,
+    KernelMessage.IIOPubMessage
+  >(thisObject);
+
+  session!.statusChanged.connect((_, args) => {
+    statusChangedSignal.emit(args);
+  }, thisObject);
+
+  session!.iopubMessage.connect((_, args) => {
+    iopubMessageSignal.emit(args);
+  });
+
+  session!.kernelChanged.connect((_, args) => {
+    kernelChangedSignal.emit(args);
+  });
+
+  session!.pendingInput.connect((_, args) => {
+    (thisObject as any).pendingInput = args;
+  });
+
+  (thisObject as any).statusChanged = statusChangedSignal;
+  (thisObject as any).kernelChanged = kernelChangedSignal;
+  (thisObject as any).iopubMessage = iopubMessageSignal;
+  (thisObject as any).propertyChanged = propertyChangedSignal;
+  (thisObject as any).disposed = disposedSignal;
+  (thisObject as any).session = session;
+  (thisObject as any).pendingInput = false;
+
+  return thisObject;
+});
+
+/**
+ * A namespace for module private data.
+ */
+namespace Private {
+  export type RecursivePartial<T> = {
+    [P in keyof T]?: RecursivePartial<T[P]>;
+  };
+
+  let manager: ServiceManager;
+
+  export const textFactory = new TextModelFactory();
+
+  /**
+   * Get or create the service manager singleton.
+   */
+  export function getManager(): ServiceManager {
+    if (!manager) {
+      manager = new ServiceManager({ standby: 'never' });
+    }
+    return manager;
+  }
+
+  export const lastMessageProperty = new AttachedProperty<
+    Kernel.IKernelConnection,
+    string
+  >({
+    name: 'lastMessageId',
+    create: () => ''
+  });
+
+  // This list of running kernels simply mirrors the KERNEL_MODELS and KERNELSPECS lists
+  export const RUNNING_KERNELS: Kernel.IKernelConnection[] = KERNEL_MODELS.map(
+    (model, _) => {
+      return new KernelMock({ model });
+    }
+  );
+}
+
+/**
+ * A mock document widget opener.
+ */
+export class DocumentWidgetOpenerMock {
+  get opened(): ISignal<DocumentWidgetOpenerMock, IDocumentWidget> {
+    return this._opened;
+  }
+
+  open(widget: IDocumentWidget): void {
+    // no-op, just emit the signal
+    this._opened.emit(widget);
+  }
+
+  private _opened = new Signal<this, IDocumentWidget>(this);
+}
diff --git a/packages/docregistry/style/index.css b/packages/docregistry/style/index.css
index 4bd496ce4426..38237a5e1956 100644
--- a/packages/docregistry/style/index.css
+++ b/packages/docregistry/style/index.css
@@ -7,6 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-@import url('~@jupyterlab/docprovider/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/docregistry/test/context.spec.ts b/packages/docregistry/test/context.spec.ts
index 6f31101f3bc1..9fca85c6e422 100644
--- a/packages/docregistry/test/context.spec.ts
+++ b/packages/docregistry/test/context.spec.ts
@@ -8,16 +8,14 @@ import {
   TextModelFactory
 } from '@jupyterlab/docregistry';
 import { RenderMimeRegistry } from '@jupyterlab/rendermime';
-import { Contents, ServiceManager } from '@jupyterlab/services';
+import { Contents, Drive, ServiceManager } from '@jupyterlab/services';
 import {
   acceptDialog,
   dismissDialog,
-  initNotebookContext,
-  NBTestUtils,
   signalToPromise,
   waitForDialog
-} from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+} from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { UUID } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 
@@ -26,7 +24,8 @@ describe('docregistry/context', () => {
   const factory = new TextModelFactory();
 
   beforeAll(() => {
-    manager = new Mock.ServiceManagerMock();
+    manager = new ServiceManagerMock();
+    manager.contents.addDrive(new Drive({ name: 'TestDrive' }));
     return manager.ready;
   });
 
@@ -55,6 +54,17 @@ describe('docregistry/context', () => {
         });
         expect(context).toBeInstanceOf(Context);
       });
+
+      it('should set the session path with local path', () => {
+        const localPath = `${UUID.uuid4()}.txt`;
+        context = new Context({
+          manager,
+          factory,
+          path: `TestDrive:${localPath}`
+        });
+
+        expect(context.sessionContext.path).toEqual(localPath);
+      });
     });
 
     describe('#pathChanged', () => {
@@ -84,6 +94,17 @@ describe('docregistry/context', () => {
         await context.initialize(true);
         expect(called).toBe(true);
       });
+
+      it('should not contain the file content attribute', async () => {
+        let called = false;
+        context.fileChanged.connect((sender, args) => {
+          // @ts-expect-error content is omitted
+          expect(args['content']).toBeUndefined();
+          called = true;
+        });
+        await context.initialize(true);
+        expect(called).toBe(true);
+      });
     });
 
     describe('#saving', () => {
@@ -92,7 +113,9 @@ describe('docregistry/context', () => {
         let checked = false;
         context.saveState.connect((sender, args) => {
           if (!called) {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(sender).toBe(context);
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(args).toBe('started');
 
             checked = true;
@@ -111,7 +134,9 @@ describe('docregistry/context', () => {
         let checked = false;
         context.saveState.connect((sender, args) => {
           if (called > 0) {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(sender).toBe(context);
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(args).toBe('completed');
             checked = true;
           }
@@ -135,6 +160,7 @@ describe('docregistry/context', () => {
         let checked;
         context.saveState.connect((sender, args) => {
           if (called > 0) {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(sender).toBe(context);
             checked = args;
           }
@@ -142,7 +168,7 @@ describe('docregistry/context', () => {
           called += 1;
         });
 
-        await expect(context.initialize(true)).rejects.toThrowError(
+        await expect(context.initialize(true)).rejects.toThrow(
           'Invalid response: 403 Forbidden'
         );
         expect(called).toBe(2);
@@ -168,7 +194,7 @@ describe('docregistry/context', () => {
     describe('#ready()', () => {
       it('should resolve when the file is saved for the first time', async () => {
         await context.initialize(true);
-        await context.ready;
+        await expect(context.ready).resolves.not.toThrow();
       });
 
       it('should resolve when the file is reverted for the first time', async () => {
@@ -178,30 +204,7 @@ describe('docregistry/context', () => {
           content: 'foo'
         });
         await context.initialize(false);
-        await context.ready;
-      });
-
-      it('should initialize the model when the file is saved for the first time', async () => {
-        const context = await initNotebookContext({ manager });
-        context.model.fromJSON(NBTestUtils.DEFAULT_CONTENT);
-        expect(context.model.cells.canUndo).toBe(true);
-        await context.initialize(true);
-        await context.ready;
-        expect(context.model.cells.canUndo).toBe(false);
-      });
-
-      it('should initialize the model when the file is reverted for the first time', async () => {
-        const context = await initNotebookContext({ manager });
-        await manager.contents.save(context.path, {
-          type: 'notebook',
-          format: 'json',
-          content: NBTestUtils.DEFAULT_CONTENT
-        });
-        context.model.fromJSON(NBTestUtils.DEFAULT_CONTENT);
-        expect(context.model.cells.canUndo).toBe(true);
-        await context.initialize(false);
-        await context.ready;
-        expect(context.model.cells.canUndo).toBe(false);
+        await expect(context.ready).resolves.not.toThrow();
       });
     });
 
@@ -258,6 +261,8 @@ describe('docregistry/context', () => {
         void context.initialize(true);
         await context.ready;
         expect(context.contentsModel!.path).toBe(path);
+        // @ts-expect-error content is omitted
+        expect(context.contentsModel!['content']).toBeUndefined();
       });
     });
 
diff --git a/packages/docregistry/test/default.spec.ts b/packages/docregistry/test/default.spec.ts
index 88ff36593079..e62194f5947a 100644
--- a/packages/docregistry/test/default.spec.ts
+++ b/packages/docregistry/test/default.spec.ts
@@ -11,10 +11,10 @@ import {
   IDocumentWidget,
   TextModelFactory
 } from '@jupyterlab/docregistry';
+import { createFileContextWithMockedServices } from '@jupyterlab/docregistry/lib/testutils';
 import { ServiceManager } from '@jupyterlab/services';
-import { sleep } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
-import { toArray } from '@lumino/algorithm';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { sleep } from '@jupyterlab/testing';
 import { UUID } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 
@@ -186,21 +186,21 @@ describe('docregistry/default', () => {
             }
           ]
         });
-        const context = await Mock.createFileContext();
+        const context = await createFileContextWithMockedServices();
         const widget = factory.createNew(context);
         const widget2 = factory.createNew(context);
-        expect(toArray(widget.toolbar.names())).toEqual([
+        expect(Array.from(widget.toolbar.names())).toEqual([
           'foo',
           'bar',
           'toolbar-popup-opener'
         ]);
-        expect(toArray(widget2.toolbar.names())).toEqual([
+        expect(Array.from(widget2.toolbar.names())).toEqual([
           'foo',
           'bar',
           'toolbar-popup-opener'
         ]);
-        expect(toArray(widget.toolbar.children()).length).toBe(3);
-        expect(toArray(widget2.toolbar.children()).length).toBe(3);
+        expect(Array.from(widget.toolbar.children()).length).toBe(3);
+        expect(Array.from(widget2.toolbar.children()).length).toBe(3);
       });
     });
 
@@ -231,14 +231,14 @@ describe('docregistry/default', () => {
     describe('#createNew()', () => {
       it('should create a new widget given a document model and a context', async () => {
         const factory = createFactory();
-        const context = await Mock.createFileContext();
+        const context = await createFileContextWithMockedServices();
         const widget = factory.createNew(context);
         expect(widget).toBeInstanceOf(Widget);
       });
 
       it('should take an optional source widget for cloning', async () => {
         const factory = createFactory();
-        const context = await Mock.createFileContext();
+        const context = await createFileContextWithMockedServices();
         const widget = factory.createNew(context);
         const clonedWidget: IDocumentWidget = factory.createNew(
           context,
@@ -282,7 +282,7 @@ describe('docregistry/default', () => {
       });
 
       it('should accept an optional language preference', () => {
-        const model = new DocumentModel('foo');
+        const model = new DocumentModel({ languagePreference: 'foo' });
         expect(model.defaultKernelLanguage).toBe('foo');
       });
     });
@@ -422,7 +422,7 @@ describe('docregistry/default', () => {
       });
 
       it('should be set by the constructor arg', () => {
-        const model = new DocumentModel('foo');
+        const model = new DocumentModel({ languagePreference: 'foo' });
         expect(model.defaultKernelLanguage).toBe('foo');
       });
     });
@@ -531,7 +531,7 @@ describe('docregistry/default', () => {
 
       it('should accept a language preference', () => {
         const factory = new TextModelFactory();
-        const model = factory.createNew('foo');
+        const model = factory.createNew({ languagePreference: 'foo' });
         expect(model.defaultKernelLanguage).toBe('foo');
       });
     });
@@ -539,8 +539,8 @@ describe('docregistry/default', () => {
     describe('#preferredLanguage()', () => {
       it('should get the preferred kernel language given an extension', () => {
         const factory = new TextModelFactory();
-        expect(factory.preferredLanguage('.py')).toBe('python');
-        expect(factory.preferredLanguage('.jl')).toBe('julia');
+        expect(factory.preferredLanguage('.py')).toBe('');
+        expect(factory.preferredLanguage('.jl')).toBe('');
       });
     });
   });
@@ -553,13 +553,16 @@ describe('docregistry/default', () => {
     let widget: DocumentWidget;
 
     const setup = async () => {
-      context = await Mock.createFileContext(false, manager);
+      context = (await createFileContextWithMockedServices(
+        false,
+        manager
+      )) as any;
       content = new Widget();
       widget = new DocumentWidget({ context, content });
     };
 
     beforeAll(async () => {
-      manager = new Mock.ServiceManagerMock();
+      manager = new ServiceManagerMock();
       await manager.ready;
     });
 
diff --git a/packages/docregistry/test/mimedocument.spec.ts b/packages/docregistry/test/mimedocument.spec.ts
index 9c8a1d7e646a..cd5d276dfa1e 100644
--- a/packages/docregistry/test/mimedocument.spec.ts
+++ b/packages/docregistry/test/mimedocument.spec.ts
@@ -8,9 +8,10 @@ import {
   MimeDocument,
   MimeDocumentFactory
 } from '@jupyterlab/docregistry';
+import { createFileContextWithMockedServices } from '@jupyterlab/docregistry/lib/testutils';
 import { IRenderMime, RenderedText } from '@jupyterlab/rendermime';
-import { defaultRenderMime, testEmission } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { defaultRenderMime } from '@jupyterlab/rendermime/lib/testutils';
+import { testEmission } from '@jupyterlab/testing';
 import { Message } from '@lumino/messaging';
 import { BoxLayout } from '@lumino/widgets';
 
@@ -47,7 +48,7 @@ describe('docregistry/mimedocument', () => {
   let dContext: Context<DocumentRegistry.IModel>;
 
   beforeEach(async () => {
-    dContext = await Mock.createFileContext();
+    dContext = (await createFileContextWithMockedServices()) as any;
   });
 
   afterEach(() => {
diff --git a/packages/docregistry/test/registry.spec.ts b/packages/docregistry/test/registry.spec.ts
index b29af5bd4ba1..8fc0984d06f1 100644
--- a/packages/docregistry/test/registry.spec.ts
+++ b/packages/docregistry/test/registry.spec.ts
@@ -8,7 +8,6 @@ import {
   DocumentWidget,
   IDocumentWidget
 } from '@jupyterlab/docregistry';
-import { toArray } from '@lumino/algorithm';
 import { UUID } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { Widget } from '@lumino/widgets';
@@ -142,7 +141,7 @@ describe('docregistry/registry', () => {
               defaultFor: []
             })
           );
-        }).toThrowError(/Invalid/);
+        }).toThrow(/Invalid/);
         expect(() => {
           registry.addWidgetFactory(
             new WidgetFactory({
@@ -151,34 +150,43 @@ describe('docregistry/registry', () => {
               defaultFor: []
             })
           );
-        }).toThrowError(/Invalid/);
+        }).toThrow(/Invalid/);
       });
     });
 
     describe('#addModelFactory()', () => {
       it('should add the model factory to the registry', () => {
         const factory = new Base64ModelFactory();
-        registry.addModelFactory(factory);
+        expect(() => {
+          registry.addModelFactory(factory);
+        }).not.toThrow();
       });
 
       it('should be a no-op a factory with the given `name` is already registered', () => {
         const factory = new Base64ModelFactory();
         registry.addModelFactory(factory);
-        const disposable = registry.addModelFactory(new Base64ModelFactory());
-        disposable.dispose();
+
+        expect(() => {
+          const disposable = registry.addModelFactory(new Base64ModelFactory());
+          disposable.dispose();
+        }).not.toThrow();
       });
 
       it('should be a no-op if the same factory is already registered', () => {
         const factory = new Base64ModelFactory();
         registry.addModelFactory(factory);
-        const disposable = registry.addModelFactory(factory);
-        disposable.dispose();
+        expect(() => {
+          const disposable = registry.addModelFactory(factory);
+          disposable.dispose();
+        }).not.toThrow();
       });
 
       it('should be removed from the registry when disposed', () => {
         const factory = new Base64ModelFactory();
-        const disposable = registry.addModelFactory(factory);
-        disposable.dispose();
+        expect(() => {
+          const disposable = registry.addModelFactory(factory);
+          disposable.dispose();
+        }).not.toThrow();
       });
     });
 
@@ -186,7 +194,7 @@ describe('docregistry/registry', () => {
       it('should add a widget extension to the registry', () => {
         const extension = new WidgetExtension();
         registry.addWidgetExtension('foo', extension);
-        expect(registry.widgetExtensions('foo').next()).toBe(extension);
+        expect(registry.widgetExtensions('foo').next().value).toBe(extension);
       });
 
       it('should be a no-op if the extension is already registered for a given widget factory', () => {
@@ -194,14 +202,14 @@ describe('docregistry/registry', () => {
         registry.addWidgetExtension('foo', extension);
         const disposable = registry.addWidgetExtension('foo', extension);
         disposable.dispose();
-        expect(registry.widgetExtensions('foo').next()).toBe(extension);
+        expect(registry.widgetExtensions('foo').next().value).toBe(extension);
       });
 
       it('should be removed from the registry when disposed', () => {
         const extension = new WidgetExtension();
         const disposable = registry.addWidgetExtension('foo', extension);
         disposable.dispose();
-        expect(toArray(registry.widgetExtensions('foo')).length).toBe(0);
+        expect(Array.from(registry.widgetExtensions('foo')).length).toBe(0);
       });
     });
 
@@ -210,7 +218,7 @@ describe('docregistry/registry', () => {
         registry = new DocumentRegistry({ initialFileTypes: [] });
         const fileType = { name: 'notebook', extensions: ['.ipynb'] };
         registry.addFileType(fileType);
-        expect(registry.fileTypes().next()!.name).toBe(fileType.name);
+        expect(registry.fileTypes().next().value.name).toBe(fileType.name);
       });
 
       it('should be removed from the registry when disposed', () => {
@@ -218,7 +226,7 @@ describe('docregistry/registry', () => {
         const fileType = { name: 'notebook', extensions: ['.ipynb'] };
         const disposable = registry.addFileType(fileType);
         disposable.dispose();
-        expect(toArray(registry.fileTypes()).length).toBe(0);
+        expect(Array.from(registry.fileTypes()).length).toBe(0);
       });
 
       it('should be a no-op if a file type of the same name is registered', () => {
@@ -227,7 +235,110 @@ describe('docregistry/registry', () => {
         registry.addFileType(fileType);
         const disposable = registry.addFileType(fileType);
         disposable.dispose();
-        expect(registry.fileTypes().next()!.name).toBe(fileType.name);
+        expect(registry.fileTypes().next().value.name).toBe(fileType.name);
+      });
+
+      it('should add a file type to some factories', () => {
+        registry = new DocumentRegistry({ initialFileTypes: [] });
+        const factory = createFactory();
+        registry.addWidgetFactory(factory);
+        const gFactory = new WidgetFactory({
+          name: 'global',
+          fileTypes: ['*'],
+          defaultFor: ['*']
+        });
+        registry.addWidgetFactory(gFactory);
+
+        expect(registry.defaultWidgetFactory('dummy.test').name).toEqual(
+          gFactory.name
+        );
+
+        const fileType = { name: 'test-file', extensions: ['.test'] };
+        registry.addFileType(fileType, [factory.name]);
+        expect(registry.defaultWidgetFactory('dummy.test').name).toEqual(
+          factory.name
+        );
+      });
+
+      it('should add a file type to some factories without changing the default', () => {
+        const factory = createFactory();
+        registry.addWidgetFactory(factory);
+        const gFactory = new WidgetFactory({
+          name: 'global',
+          fileTypes: ['*'],
+          defaultFor: ['*']
+        });
+        registry.addWidgetFactory(gFactory);
+
+        expect(registry.defaultWidgetFactory('dummy.foo.bar').name).toEqual(
+          factory.name
+        );
+
+        const newFactory = new WidgetFactory({
+          name: 'new-factory',
+          fileTypes: ['new-foobar']
+        });
+        registry.addWidgetFactory(newFactory);
+
+        const fileType = { name: 'test-file', extensions: ['.foo.bar'] };
+        registry.addFileType(fileType, [newFactory.name]);
+
+        expect(registry.defaultWidgetFactory('dummy.foo.bar').name).toEqual(
+          factory.name
+        );
+        expect(
+          registry.preferredWidgetFactories('dummy.foo.bar').map(f => f.name)
+        ).toContain(newFactory.name);
+      });
+
+      it('should remove the link to factory when disposed', () => {
+        registry = new DocumentRegistry({ initialFileTypes: [] });
+        const factory = createFactory();
+        registry.addWidgetFactory(factory);
+        const gFactory = new WidgetFactory({
+          name: 'global',
+          fileTypes: ['*'],
+          defaultFor: ['*']
+        });
+        registry.addWidgetFactory(gFactory);
+
+        const fileType = { name: 'test-file', extensions: ['.test'] };
+        const disposable = registry.addFileType(fileType, [factory.name]);
+
+        disposable.dispose();
+
+        expect(registry.defaultWidgetFactory('dummy.test').name).toBe(
+          gFactory.name
+        );
+      });
+
+      it('should remove the link to factory when disposed without changing the default', () => {
+        const factory = createFactory();
+        registry.addWidgetFactory(factory);
+        const gFactory = new WidgetFactory({
+          name: 'global',
+          fileTypes: ['*'],
+          defaultFor: ['*']
+        });
+        registry.addWidgetFactory(gFactory);
+
+        const newFactory = new WidgetFactory({
+          name: 'new-factory',
+          fileTypes: ['new-foobar']
+        });
+        registry.addWidgetFactory(newFactory);
+
+        const fileType = { name: 'test-file', extensions: ['.foo.bar'] };
+        const disposable = registry.addFileType(fileType, [newFactory.name]);
+
+        disposable.dispose();
+
+        expect(registry.defaultWidgetFactory('dummy.foo.bar').name).toEqual(
+          factory.name
+        );
+        expect(
+          registry.preferredWidgetFactories('dummy.foo.bar').map(f => f.name)
+        ).not.toContain(newFactory.name);
       });
 
       it('should add a file type to some factories', () => {
@@ -343,9 +454,9 @@ describe('docregistry/registry', () => {
       });
 
       it('should give the valid registered widget factories', () => {
-        expect(toArray(registry.preferredWidgetFactories('foo.txt'))).toEqual(
-          []
-        );
+        expect(
+          Array.from(registry.preferredWidgetFactories('foo.txt'))
+        ).toEqual([]);
         const factory = createFactory();
         registry.addWidgetFactory(factory);
         const gFactory = new WidgetFactory({
@@ -355,7 +466,7 @@ describe('docregistry/registry', () => {
         });
         registry.addWidgetFactory(gFactory);
         const factories = registry.preferredWidgetFactories('a.foo.bar');
-        expect(toArray(factories)).toEqual([factory, gFactory]);
+        expect(Array.from(factories)).toEqual([factory, gFactory]);
       });
 
       it('should not list a factory whose model is not registered', () => {
@@ -392,7 +503,7 @@ describe('docregistry/registry', () => {
         });
         registry.addWidgetFactory(mdFactory);
         const factories = registry.preferredWidgetFactories('a.txt');
-        expect(toArray(factories)).toEqual([factory, gFactory]);
+        expect(Array.from(factories)).toEqual([factory, gFactory]);
       });
 
       it('should list a default rendered factory after the default factory', () => {
@@ -429,9 +540,9 @@ describe('docregistry/registry', () => {
         });
         registry.addWidgetFactory(jFactory);
         let factories = registry.preferredWidgetFactories('foo.table.json');
-        expect(toArray(factories)).toEqual([tFactory, jFactory]);
+        expect(Array.from(factories)).toEqual([tFactory, jFactory]);
         factories = registry.preferredWidgetFactories('foo.json');
-        expect(toArray(factories)).toEqual([jFactory]);
+        expect(Array.from(factories)).toEqual([jFactory]);
       });
 
       it('should handle just a multi-part extension', () => {
@@ -441,9 +552,9 @@ describe('docregistry/registry', () => {
         });
         registry.addWidgetFactory(factory);
         let factories = registry.preferredWidgetFactories('foo.table.json');
-        expect(toArray(factories)).toEqual([factory]);
+        expect(Array.from(factories)).toEqual([factory]);
         factories = registry.preferredWidgetFactories('foo.json');
-        expect(toArray(factories)).toEqual([]);
+        expect(Array.from(factories)).toEqual([]);
       });
     });
 
@@ -513,10 +624,10 @@ describe('docregistry/registry', () => {
         registry.addWidgetFactory(factory);
         expect(() => {
           registry.setDefaultWidgetFactory('foobar', 'fake');
-        }).toThrowError(/Cannot find/);
+        }).toThrow(/Cannot find/);
         expect(() => {
           registry.setDefaultWidgetFactory('fake', undefined);
-        }).toThrowError(/Cannot find/);
+        }).toThrow(/Cannot find/);
       });
 
       it('should throw if the factory cannot render a file type', () => {
@@ -528,7 +639,7 @@ describe('docregistry/registry', () => {
         registry.addWidgetFactory(mdFactory);
         expect(() => {
           registry.setDefaultWidgetFactory('foobar', 'markdown');
-        }).toThrowError(/cannot view/);
+        }).toThrow(/cannot view/);
       });
 
       it('should revert to the default widget factory if the override is removed', () => {
@@ -574,7 +685,7 @@ describe('docregistry/registry', () => {
     describe('#fileTypes()', () => {
       it('should get the registered file types', () => {
         registry = new DocumentRegistry({ initialFileTypes: [] });
-        expect(toArray(registry.fileTypes()).length).toBe(0);
+        expect(Array.from(registry.fileTypes()).length).toBe(0);
         const fileTypes = [
           { name: 'notebook', extensions: ['.ipynb'] },
           { name: 'python', extensions: ['.py'] },
@@ -584,9 +695,9 @@ describe('docregistry/registry', () => {
         registry.addFileType(fileTypes[1]);
         registry.addFileType(fileTypes[2]);
         const values = registry.fileTypes();
-        expect(values.next()!.name).toBe(fileTypes[0].name);
-        expect(values.next()!.name).toBe(fileTypes[1].name);
-        expect(values.next()!.name).toBe(fileTypes[2].name);
+        expect(values.next().value.name).toBe(fileTypes[0].name);
+        expect(values.next().value.name).toBe(fileTypes[1].name);
+        expect(values.next().value.name).toBe(fileTypes[2].name);
       });
     });
 
@@ -617,12 +728,10 @@ describe('docregistry/registry', () => {
           })
         );
         let pref = registry.getKernelPreference('.c', 'global');
-        expect(pref!.language).toBe('clike');
         expect(pref!.shouldStart).toBe(false);
         expect(pref!.canStart).toBe(false);
 
         pref = registry.getKernelPreference('.py', 'python');
-        expect(pref!.language).toBe('python');
         expect(pref!.shouldStart).toBe(true);
         expect(pref!.canStart).toBe(true);
 
@@ -662,14 +771,14 @@ describe('docregistry/registry', () => {
         registry.addWidgetExtension('fizz', foo);
         registry.addWidgetExtension('fizz', bar);
         registry.addWidgetExtension('buzz', foo);
-        const fizz = toArray(registry.widgetExtensions('fizz'));
+        const fizz = Array.from(registry.widgetExtensions('fizz'));
         expect(fizz[0]).toBe(foo);
         expect(fizz[1]).toBe(bar);
         expect(fizz.length).toBe(2);
-        const buzz = toArray(registry.widgetExtensions('buzz'));
+        const buzz = Array.from(registry.widgetExtensions('buzz'));
         expect(buzz[0]).toBe(foo);
-        expect(toArray(buzz).length).toBe(1);
-        expect(registry.widgetExtensions('baz').next()).toBeUndefined();
+        expect(Array.from(buzz).length).toBe(1);
+        expect(registry.widgetExtensions('baz').next().done).toBe(true);
       });
     });
 
diff --git a/packages/docregistry/test/testutils.spec.ts b/packages/docregistry/test/testutils.spec.ts
new file mode 100644
index 000000000000..7a3e3b3140d7
--- /dev/null
+++ b/packages/docregistry/test/testutils.spec.ts
@@ -0,0 +1,137 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import * as Mock from '@jupyterlab/docregistry/lib/testutils';
+import { KernelMessage } from '@jupyterlab/services';
+import {
+  DEFAULT_NAME,
+  SessionConnectionMock
+} from '@jupyterlab/services/lib/testutils';
+
+describe('mock', () => {
+  describe('createSimpleSessionContext()', () => {
+    it('should create a session context', () => {
+      const context = Mock.createSimpleSessionContext();
+      expect(context.session!.kernel!.name).toEqual(DEFAULT_NAME);
+    });
+
+    it('should accept a session model', () => {
+      const context = Mock.createSimpleSessionContext({
+        name: 'hi',
+        path: 'foo',
+        type: 'bar',
+        kernel: { name: 'fizz' }
+      });
+      expect(context.name).toEqual('hi');
+      expect(context.path).toEqual('foo');
+      expect(context.type).toEqual('bar');
+      expect(context.session!.kernel!.name).toEqual('fizz');
+    });
+  });
+
+  describe('updateKernelStatus()', () => {
+    it('should update the kernel status', () => {
+      const context = Mock.createSimpleSessionContext();
+      let called = false;
+      context.statusChanged.connect((_, status) => {
+        if (status === 'dead') {
+          called = true;
+        }
+      });
+      Mock.updateKernelStatus(context, 'dead');
+      expect(context.session!.kernel!.status).toEqual('dead');
+      expect(called).toEqual(true);
+    });
+  });
+
+  describe('emitIopubMessage', () => {
+    it('should emit an iopub message', () => {
+      const context = Mock.createSimpleSessionContext();
+      const source = KernelMessage.createMessage({
+        channel: 'iopub',
+        msgType: 'execute_input',
+        session: 'foo',
+        username: 'bar',
+        msgId: 'fizz',
+        content: {
+          code: 'hello, world!',
+          execution_count: 0
+        }
+      });
+      let called = false;
+      context.iopubMessage.connect((_, msg) => {
+        expect(msg).toBe(source);
+        called = true;
+      });
+      Mock.emitIopubMessage(context, source);
+      expect(called).toBe(true);
+    });
+  });
+
+  describe('SessionContextMock', () => {
+    describe('.constructor()', () => {
+      it('should create a new context', () => {
+        const context = new Mock.SessionContextMock({}, null);
+        expect(context.session!.kernel!.name).toBe(DEFAULT_NAME);
+      });
+
+      it('should accept options', () => {
+        const session = new SessionConnectionMock({}, null);
+        const context = new Mock.SessionContextMock({ path: 'foo' }, session);
+        expect(context.session).toBe(session);
+        expect(context.path).toBe('foo');
+      });
+    });
+
+    describe('.dispose()', () => {
+      it('should be a no-op', () => {
+        const context = new Mock.SessionContextMock({}, null);
+        expect(() => {
+          context.dispose();
+        }).not.toThrow();
+      });
+    });
+
+    describe('.initialize()', () => {
+      it('should be a no-op', async () => {
+        const context = new Mock.SessionContextMock({}, null);
+        await expect(context.initialize()).resolves.not.toThrow();
+      });
+    });
+
+    describe('.ready', () => {
+      it('should be a no-op', async () => {
+        const context = new Mock.SessionContextMock({}, null);
+        await expect(context.ready).resolves.not.toThrow();
+      });
+    });
+
+    describe('.changeKernel()', () => {
+      it('should change the kernel', async () => {
+        const context = new Mock.SessionContextMock({}, null);
+        const oldId = context.session!.kernel!.id;
+        const kernel = await context.changeKernel({ name: DEFAULT_NAME });
+        expect(kernel!.id).not.toBe(oldId);
+      });
+    });
+
+    describe('.shutdown()', () => {
+      it('should be a no-op', async () => {
+        const context = new Mock.SessionContextMock({}, null);
+        await expect(context.shutdown()).resolves.not.toThrow();
+      });
+    });
+  });
+
+  describe('createFileContext()', () => {
+    it('should create a context without a kernel', async () => {
+      const context = await Mock.createFileContextWithMockedServices();
+      expect(context.sessionContext.session).toBe(null);
+    });
+
+    it('should create a context with a kernel', async () => {
+      const context = await Mock.createFileContextWithMockedServices(true);
+      expect(context.sessionContext.session!.kernel!.name).toBe(DEFAULT_NAME);
+    });
+  });
+});
diff --git a/packages/docregistry/tsconfig.json b/packages/docregistry/tsconfig.json
index 586504995aac..d3ed167176b4 100644
--- a/packages/docregistry/tsconfig.json
+++ b/packages/docregistry/tsconfig.json
@@ -12,15 +12,9 @@
     {
       "path": "../codeeditor"
     },
-    {
-      "path": "../codemirror"
-    },
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docprovider"
-    },
     {
       "path": "../observables"
     },
@@ -33,9 +27,6 @@
     {
       "path": "../services"
     },
-    {
-      "path": "../shared-models"
-    },
     {
       "path": "../translation"
     },
diff --git a/packages/docregistry/tsconfig.test.json b/packages/docregistry/tsconfig.test.json
index 34d195ba931b..c2db86cc274a 100644
--- a/packages/docregistry/tsconfig.test.json
+++ b/packages/docregistry/tsconfig.test.json
@@ -8,15 +8,9 @@
     {
       "path": "../codeeditor"
     },
-    {
-      "path": "../codemirror"
-    },
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docprovider"
-    },
     {
       "path": "../observables"
     },
@@ -29,9 +23,6 @@
     {
       "path": "../services"
     },
-    {
-      "path": "../shared-models"
-    },
     {
       "path": "../translation"
     },
@@ -42,43 +33,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docprovider"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../rendermime-interfaces"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../shared-models"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/documentsearch-extension/package.json b/packages/documentsearch-extension/package.json
index bba9041356da..d4a9becd8761 100644
--- a/packages/documentsearch-extension/package.json
+++ b/packages/documentsearch-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/documentsearch-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Document Search Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -25,7 +25,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -33,16 +34,16 @@
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/documentsearch": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/documentsearch-extension/schema/plugin.json b/packages/documentsearch-extension/schema/plugin.json
index 028f89511623..1c90b50491a8 100644
--- a/packages/documentsearch-extension/schema/plugin.json
+++ b/packages/documentsearch-extension/schema/plugin.json
@@ -47,6 +47,11 @@
       "command": "documentsearch:highlightPrevious",
       "keys": ["Accel Shift G"],
       "selector": ".jp-mod-searchable"
+    },
+    {
+      "command": "documentsearch:end",
+      "keys": ["Escape"],
+      "selector": ".jp-mod-searchable"
     }
   ],
   "properties": {
diff --git a/packages/documentsearch-extension/src/index.ts b/packages/documentsearch-extension/src/index.ts
index 52093885a52a..f1818dbc3631 100644
--- a/packages/documentsearch-extension/src/index.ts
+++ b/packages/documentsearch-extension/src/index.ts
@@ -10,25 +10,45 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-
-import { ICommandPalette } from '@jupyterlab/apputils';
-
+import { ICommandPalette, MainAreaWidget } from '@jupyterlab/apputils';
 import {
-  CodeMirrorSearchProvider,
   ISearchProviderRegistry,
-  NotebookSearchProvider,
-  SearchInstance,
+  SearchDocumentModel,
+  SearchDocumentView,
   SearchProviderRegistry
 } from '@jupyterlab/documentsearch';
-
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
 import { Widget } from '@lumino/widgets';
 
 const SEARCHABLE_CLASS = 'jp-mod-searchable';
 
+namespace CommandIDs {
+  /**
+   * Start search in a document
+   */
+  export const search = 'documentsearch:start';
+  /**
+   * Start search and replace in a document
+   */
+  export const searchAndReplace = 'documentsearch:startWithReplace';
+  /**
+   * Find next search match
+   */
+  export const findNext = 'documentsearch:highlightNext';
+  /**
+   * Find previous search match
+   */
+  export const findPrevious = 'documentsearch:highlightPrevious';
+  /**
+   * End search in a document
+   */
+  export const end = 'documentsearch:end';
+}
+
 const labShellWidgetListener: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/documentsearch:labShellWidgetListener',
+  id: '@jupyterlab/documentsearch-extension:labShellWidgetListener',
+  description: 'Active search on valid document',
   requires: [ILabShell, ISearchProviderRegistry],
   autoStart: true,
   activate: (
@@ -42,11 +62,9 @@ const labShellWidgetListener: JupyterFrontEndPlugin<void> = {
       if (!widget) {
         return;
       }
-      const providerForWidget = registry.getProviderForWidget(widget);
-      if (providerForWidget) {
+      if (registry.hasProvider(widget)) {
         widget.addClass(SEARCHABLE_CLASS);
-      }
-      if (!providerForWidget) {
+      } else {
         widget.removeClass(SEARCHABLE_CLASS);
       }
     };
@@ -75,7 +93,8 @@ const labShellWidgetListener: JupyterFrontEndPlugin<void> = {
  * Initialization data for the document-search extension.
  */
 const extension: JupyterFrontEndPlugin<ISearchProviderRegistry> = {
-  id: '@jupyterlab/documentsearch:plugin',
+  id: '@jupyterlab/documentsearch-extension:plugin',
+  description: 'Provides the document search registry.',
   provides: ISearchProviderRegistry,
   requires: [ITranslator],
   optional: [ICommandPalette, ISettingRegistry],
@@ -83,31 +102,22 @@ const extension: JupyterFrontEndPlugin<ISearchProviderRegistry> = {
   activate: (
     app: JupyterFrontEnd,
     translator: ITranslator,
-    palette: ICommandPalette | null,
+    palette: ICommandPalette,
     settingRegistry: ISettingRegistry | null
   ) => {
     const trans = translator.load('jupyterlab');
 
     let searchDebounceTime = 500;
 
-    // Create registry, retrieve all default providers
-    const registry: SearchProviderRegistry = new SearchProviderRegistry();
-
-    // Register default implementations of the Notebook and CodeMirror search providers
-    registry.register('jp-notebookSearchProvider', NotebookSearchProvider);
-    registry.register('jp-codeMirrorSearchProvider', CodeMirrorSearchProvider);
-
-    const activeSearches = new Map<string, SearchInstance>();
+    // Create registry
+    const registry: SearchProviderRegistry = new SearchProviderRegistry(
+      translator
+    );
 
-    const startCommand: string = 'documentsearch:start';
-    const startReplaceCommand: string = 'documentsearch:startWithReplace';
-    const nextCommand: string = 'documentsearch:highlightNext';
-    const prevCommand: string = 'documentsearch:highlightPrevious';
+    const searchViews = new Map<string, SearchDocumentView>();
 
     if (settingRegistry) {
-      const loadSettings = settingRegistry.load(
-        '@jupyterlab/documentsearch-extension:plugin'
-      );
+      const loadSettings = settingRegistry.load(extension.id);
       const updateSettings = (settings: ISettingRegistry.ISettings): void => {
         searchDebounceTime = settings.get('searchDebounceTime')
           .composite as number;
@@ -125,141 +135,196 @@ const extension: JupyterFrontEndPlugin<ISearchProviderRegistry> = {
         });
     }
 
-    const currentWidgetHasSearchProvider = () => {
-      const currentWidget = app.shell.currentWidget;
-      if (!currentWidget) {
+    const isEnabled = () => {
+      const widget = app.shell.currentWidget;
+      if (!widget) {
         return false;
       }
-      return registry.getProviderForWidget(currentWidget) !== undefined;
+      return registry.hasProvider(widget);
     };
-    const getCurrentWidgetSearchInstance = () => {
-      const currentWidget = app.shell.currentWidget;
-      if (!currentWidget) {
+
+    const getSearchWidget = (widget: Widget | null) => {
+      if (!widget) {
         return;
       }
-      const widgetId = currentWidget.id;
-      let searchInstance = activeSearches.get(widgetId);
-      if (!searchInstance) {
-        const searchProvider = registry.getProviderForWidget(currentWidget);
+      const widgetId = widget.id;
+      let searchView = searchViews.get(widgetId);
+      if (!searchView) {
+        const searchProvider = registry.getProvider(widget);
         if (!searchProvider) {
           return;
         }
-        searchInstance = new SearchInstance(
-          currentWidget,
+        const searchModel = new SearchDocumentModel(
           searchProvider,
-          translator,
           searchDebounceTime
         );
 
-        activeSearches.set(widgetId, searchInstance);
-        // find next and previous are now enabled
-        app.commands.notifyCommandChanged();
+        const newView = new SearchDocumentView(searchModel, translator);
+
+        searchViews.set(widgetId, newView);
+        // find next, previous and end are now enabled
+        [CommandIDs.findNext, CommandIDs.findPrevious, CommandIDs.end].forEach(
+          id => {
+            app.commands.notifyCommandChanged(id);
+          }
+        );
+
+        /**
+         * Activate the target widget when the search panel is closing
+         */
+        newView.closed.connect(() => {
+          if (!widget.isDisposed) {
+            widget.activate();
+          }
+        });
+
+        /**
+         * Remove from mapping when the search view is disposed.
+         */
+        newView.disposed.connect(() => {
+          if (!widget.isDisposed) {
+            widget.activate();
+          }
+          searchViews.delete(widgetId);
+          // find next, previous and end are now disabled
+          [
+            CommandIDs.findNext,
+            CommandIDs.findPrevious,
+            CommandIDs.end
+          ].forEach(id => {
+            app.commands.notifyCommandChanged(id);
+          });
+        });
 
-        searchInstance.disposed.connect(() => {
-          activeSearches.delete(widgetId);
-          // find next and previous are now not enabled
-          app.commands.notifyCommandChanged();
+        /**
+         * Dispose resources when the widget is disposed.
+         */
+        widget.disposed.connect(() => {
+          newView.dispose();
+          searchModel.dispose();
+          searchProvider.dispose();
         });
+
+        searchView = newView;
+      }
+
+      if (!searchView.isAttached) {
+        Widget.attach(searchView, widget.node);
+        if (widget instanceof MainAreaWidget) {
+          // Offset the position of the search widget to not cover the toolbar nor the content header.
+          // TODO this does not update once the search widget is displayed.
+          searchView.node.style.top = `${
+            widget.toolbar.node.getBoundingClientRect().height +
+            widget.contentHeader.node.getBoundingClientRect().height
+          }px`;
+        }
+        if (searchView.model.searchExpression) {
+          searchView.model.refresh();
+        }
       }
-      return searchInstance;
+      return searchView;
     };
 
-    app.commands.addCommand(startCommand, {
+    app.commands.addCommand(CommandIDs.search, {
       label: trans.__('Find…'),
-      isEnabled: currentWidgetHasSearchProvider,
+      isEnabled: isEnabled,
       execute: args => {
-        const searchInstance = getCurrentWidgetSearchInstance();
-        if (searchInstance) {
+        const searchWidget = getSearchWidget(app.shell.currentWidget);
+        if (searchWidget) {
           const searchText = args['searchText'] as string;
           if (searchText) {
-            searchInstance.setSearchText(searchText);
+            searchWidget.setSearchText(searchText);
+          } else {
+            searchWidget.setSearchText(
+              searchWidget.model.suggestedInitialQuery
+            );
           }
-          searchInstance.focusInput();
+          searchWidget.focusSearchInput();
         }
       }
     });
 
-    app.commands.addCommand(startReplaceCommand, {
+    app.commands.addCommand(CommandIDs.searchAndReplace, {
       label: trans.__('Find and Replace…'),
-      isEnabled: currentWidgetHasSearchProvider,
+      isEnabled: isEnabled,
       execute: args => {
-        const searchInstance = getCurrentWidgetSearchInstance();
-        if (searchInstance) {
+        const searchWidget = getSearchWidget(app.shell.currentWidget);
+        if (searchWidget) {
           const searchText = args['searchText'] as string;
           if (searchText) {
-            searchInstance.setSearchText(searchText);
+            searchWidget.setSearchText(searchText);
+          } else {
+            searchWidget.setSearchText(
+              searchWidget.model.suggestedInitialQuery
+            );
           }
           const replaceText = args['replaceText'] as string;
           if (replaceText) {
-            searchInstance.setReplaceText(replaceText);
+            searchWidget.setReplaceText(replaceText);
           }
-          searchInstance.showReplace();
-          searchInstance.focusInput();
+          searchWidget.showReplace();
+          searchWidget.focusSearchInput();
         }
       }
     });
 
-    app.commands.addCommand(nextCommand, {
+    app.commands.addCommand(CommandIDs.findNext, {
       label: trans.__('Find Next'),
-      isEnabled: () => {
-        const currentWidget = app.shell.currentWidget;
-        if (!currentWidget) {
-          return false;
-        }
-        return activeSearches.has(currentWidget.id);
-      },
+      isEnabled: () =>
+        !!app.shell.currentWidget &&
+        searchViews.has(app.shell.currentWidget.id),
       execute: async () => {
         const currentWidget = app.shell.currentWidget;
         if (!currentWidget) {
           return;
         }
-        const instance = activeSearches.get(currentWidget.id);
-        if (!instance) {
-          return;
-        }
 
-        await instance.provider.highlightNext();
-        instance.updateIndices();
+        await searchViews.get(currentWidget.id)?.model.highlightNext();
       }
     });
 
-    app.commands.addCommand(prevCommand, {
+    app.commands.addCommand(CommandIDs.findPrevious, {
       label: trans.__('Find Previous'),
-      isEnabled: () => {
+      isEnabled: () =>
+        !!app.shell.currentWidget &&
+        searchViews.has(app.shell.currentWidget.id),
+      execute: async () => {
         const currentWidget = app.shell.currentWidget;
         if (!currentWidget) {
-          return false;
+          return;
         }
-        return activeSearches.has(currentWidget.id);
-      },
+
+        await searchViews.get(currentWidget.id)?.model.highlightPrevious();
+      }
+    });
+
+    app.commands.addCommand(CommandIDs.end, {
+      label: trans.__('End Search'),
+      isEnabled: () =>
+        !!app.shell.currentWidget &&
+        searchViews.has(app.shell.currentWidget.id),
       execute: async () => {
         const currentWidget = app.shell.currentWidget;
         if (!currentWidget) {
           return;
         }
-        const instance = activeSearches.get(currentWidget.id);
-        if (!instance) {
-          return;
-        }
 
-        await instance.provider.highlightPrevious();
-        instance.updateIndices();
+        searchViews.get(currentWidget.id)?.close();
       }
     });
 
     // Add the command to the palette.
     if (palette) {
-      palette.addItem({
-        command: startCommand,
-        category: trans.__('Main Area')
-      });
-      palette.addItem({
-        command: nextCommand,
-        category: trans.__('Main Area')
-      });
-      palette.addItem({
-        command: prevCommand,
-        category: trans.__('Main Area')
+      [
+        CommandIDs.search,
+        CommandIDs.findNext,
+        CommandIDs.findPrevious,
+        CommandIDs.end
+      ].forEach(command => {
+        palette.addItem({
+          command,
+          category: trans.__('Main Area')
+        });
       });
     }
 
diff --git a/packages/documentsearch/.vscode/launch.json b/packages/documentsearch/.vscode/launch.json
new file mode 100644
index 000000000000..66fb4b825a88
--- /dev/null
+++ b/packages/documentsearch/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach to jest",
+            // Usage:
+            // Open the parent directory in VSCode
+            // Run `jlpm test:debug:watch` in a terminal
+            // Run this debugging task
+            "port": 9229
+        }
+    ]
+}
diff --git a/packages/documentsearch/babel.config.js b/packages/documentsearch/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/documentsearch/babel.config.js
+++ b/packages/documentsearch/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/documentsearch/jest.config.js b/packages/documentsearch/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/documentsearch/jest.config.js
+++ b/packages/documentsearch/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/documentsearch/package.json b/packages/documentsearch/package.json
index cd196cabab6b..5f9d964d7ce2 100644
--- a/packages/documentsearch/package.json
+++ b/packages/documentsearch/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/documentsearch",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Document Search",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,7 +24,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,35 +33,28 @@
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "codemirror": "~5.61.0",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/documentsearch/src/index.ts b/packages/documentsearch/src/index.ts
index 9f8e4d12e62d..844190f14b1c 100644
--- a/packages/documentsearch/src/index.ts
+++ b/packages/documentsearch/src/index.ts
@@ -5,10 +5,10 @@
  * @module documentsearch
  */
 
-export * from './interfaces';
-export * from './providers/codemirrorsearchprovider';
 export * from './providers/genericsearchprovider';
-export * from './providers/notebooksearchprovider';
-export * from './searchinstance';
+export * from './providers/textprovider';
+export * from './searchmodel';
+export * from './searchview';
+export * from './searchprovider';
 export * from './searchproviderregistry';
 export * from './tokens';
diff --git a/packages/documentsearch/src/interfaces.ts b/packages/documentsearch/src/interfaces.ts
deleted file mode 100644
index f4ac17737255..000000000000
--- a/packages/documentsearch/src/interfaces.ts
+++ /dev/null
@@ -1,223 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISignal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
-
-export interface IFiltersType {
-  output: boolean;
-  selectedCells: boolean;
-}
-
-export interface IDisplayState {
-  /**
-   * The index of the currently selected match
-   */
-  currentIndex: number | null;
-
-  /**
-   * The total number of matches found in the document
-   */
-  totalMatches: number;
-
-  /**
-   * Should the search be case sensitive?
-   */
-  caseSensitive: boolean;
-
-  /**
-   * Should the search string be treated as a RegExp?
-   */
-  useRegex: boolean;
-
-  /**
-   * The text in the search entry
-   */
-  searchText: string;
-
-  /**
-   * The query constructed from the text and the case/regex flags
-   */
-  query: RegExp | null;
-
-  /**
-   * An error message (used for bad regex syntax)
-   */
-  errorMessage: string;
-
-  /**
-   * Should the focus forced into the input on the next render?
-   */
-  forceFocus: boolean;
-
-  /**
-   * Whether or not the search input is currently focused
-   */
-  searchInputFocused: boolean;
-
-  /**
-   * Whether or not the replace input is currently focused
-   */
-  replaceInputFocused: boolean;
-
-  /**
-   * The text in the replace entry
-   */
-  replaceText: string;
-
-  /**
-   * Whether or not the replace entry row is visible
-   */
-  replaceEntryShown: boolean;
-
-  /**
-   * What should we include when we search?
-   */
-  filters: IFiltersType;
-
-  /**
-   * Is the filters view open?
-   */
-  filtersOpen: boolean;
-}
-
-export interface ISearchMatch {
-  /**
-   * Text of the exact match itself
-   */
-  readonly text: string;
-
-  /**
-   * Fragment containing match
-   */
-  readonly fragment: string;
-
-  /**
-   * Line number of match
-   */
-  line: number;
-
-  /**
-   * Column location of match
-   */
-  column: number;
-
-  /**
-   * Index among the other matches
-   */
-  index: number;
-}
-
-/**
- * This interface is meant to enforce that SearchProviders implement
- * the static canSearchOn function.
- */
-export interface ISearchProviderConstructor<T extends Widget = Widget> {
-  new (): ISearchProvider<T>;
-  /**
-   * Report whether or not this provider has the ability to search on the
-   * given object. The function is a type guard, meaning that it returns
-   * a boolean, but has a type predicate (`x is T`) for its return signature.
-   */
-  canSearchOn(domain: Widget): domain is T;
-}
-
-export interface ISearchProvider<T extends Widget = Widget> {
-  /**
-   * Get an initial query value if applicable so that it can be entered
-   * into the search box as an initial query
-   *
-   * @param searchTarget The widget to be searched
-   *
-   * @returns Initial value used to populate the search box.
-   */
-  getInitialQuery(searchTarget: T): any;
-  /**
-   * Initialize the search using the provided options.  Should update the UI
-   * to highlight all matches and "select" whatever the first match should be.
-   *
-   * @param query A RegExp to be use to perform the search
-   * @param searchTarget The widget to be searched
-   * @param filters Filter parameters to pass to provider
-   *
-   * @returns A promise that resolves with a list of all matches
-   */
-  startQuery(
-    query: RegExp,
-    searchTarget: T,
-    filters: IFiltersType
-  ): Promise<ISearchMatch[]>;
-
-  /**
-   * Clears state of a search provider to prepare for startQuery to be called
-   * in order to start a new query or refresh an existing one.
-   *
-   * @returns A promise that resolves when the search provider is ready to
-   * begin a new search.
-   */
-  endQuery(): Promise<void>;
-
-  /**
-   * Resets UI state as it was before the search process began.  Cleans up and
-   * disposes of all internal state.
-   *
-   * @returns A promise that resolves when all state has been cleaned up.
-   */
-  endSearch(): Promise<void>;
-
-  /**
-   * Move the current match indicator to the next match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  highlightNext(): Promise<ISearchMatch | undefined>;
-
-  /**
-   * Move the current match indicator to the previous match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  highlightPrevious(): Promise<ISearchMatch | undefined>;
-
-  /**
-   * Replace the currently selected match with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  replaceCurrentMatch(newText: string): Promise<boolean>;
-
-  /**
-   * Replace all matches in the notebook with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  replaceAllMatches(newText: string): Promise<boolean>;
-
-  /**
-   * The same list of matches provided by the startQuery promise resolution
-   */
-  readonly matches: ISearchMatch[];
-
-  /**
-   * Signal indicating that something in the search has changed, so the UI should update
-   */
-  readonly changed: ISignal<ISearchProvider<T>, void>;
-
-  /**
-   * The current index of the selected match.
-   */
-  readonly currentMatchIndex: number | null;
-
-  /**
-   * Set to true if the widget under search is read-only, false
-   * if it is editable.  Will be used to determine whether to show
-   * the replace option.
-   */
-  readonly isReadOnly: boolean;
-
-  /**
-   * Set to true if the widget under search has outputs to search.
-   * Defaults to false.
-   */
-  readonly hasOutputs?: boolean;
-}
diff --git a/packages/documentsearch/src/providers/codemirrorsearchprovider.ts b/packages/documentsearch/src/providers/codemirrorsearchprovider.ts
deleted file mode 100644
index 391a17752095..000000000000
--- a/packages/documentsearch/src/providers/codemirrorsearchprovider.ts
+++ /dev/null
@@ -1,573 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/*
-  Parts of the implementation of the search in this file were derived from
-  CodeMirror's search at:
-  https://github.com/codemirror/CodeMirror/blob/c2676685866c571a1c9c82cb25018cc08b4d42b2/addon/search/search.js
-  which is licensed with the following license:
-
-  MIT License
-
-  Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others
-
-  Permission is hereby granted, free of charge, to any person obtaining a copy
-  of this software and associated documentation files (the "Software"), to deal
-  in the Software without restriction, including without limitation the rights
-  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-  copies of the Software, and to permit persons to whom the Software is
-  furnished to do so, subject to the following conditions:
-
-  The above copyright notice and this permission notice shall be included in
-  all copies or substantial portions of the Software.
-
-  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-  THE SOFTWARE.
-*/
-
-import { MainAreaWidget } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
-import { FileEditor } from '@jupyterlab/fileeditor';
-import { ISignal, Signal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
-import * as CodeMirror from 'codemirror';
-import { ISearchMatch, ISearchProvider } from '../interfaces';
-
-// The type for which canSearchFor returns true
-export type CMMainAreaWidget = MainAreaWidget<FileEditor> & {
-  content: { editor: CodeMirrorEditor };
-};
-type MatchMap = { [key: number]: { [key: number]: ISearchMatch } };
-
-export class CodeMirrorSearchProvider
-  implements ISearchProvider<CMMainAreaWidget> {
-  /**
-   * Get an initial query value if applicable so that it can be entered
-   * into the search box as an initial query
-   *
-   * @returns Initial value used to populate the search box.
-   */
-  getInitialQuery(searchTarget: CMMainAreaWidget): any {
-    const cm = searchTarget.content.editor;
-    const selection = cm.doc.getSelection();
-    // if there are newlines, just return empty string
-    return selection.search(/\r?\n|\r/g) === -1 ? selection : '';
-  }
-
-  /**
-   * Initialize the search using the provided options.  Should update the UI
-   * to highlight all matches and "select" whatever the first match should be.
-   *
-   * @param query A RegExp to be use to perform the search
-   * @param searchTarget The widget to be searched
-   * @param [filters={}] Filter parameters to pass to provider
-   *
-   * @returns A promise that resolves with a list of all matches
-   */
-  async startQuery(
-    query: RegExp,
-    searchTarget: Widget,
-    filters = {}
-  ): Promise<ISearchMatch[]> {
-    if (!CodeMirrorSearchProvider.canSearchOn(searchTarget)) {
-      throw new Error('Cannot find Codemirror instance to search');
-    }
-
-    // canSearchOn is a type guard that guarantees the type of .editor
-    this._cm = searchTarget.content.editor;
-    return this._startQuery(query);
-  }
-
-  /**
-   * Initialize the search using a CodeMirrorEditor object.
-   */
-  async startQueryCodeMirror(
-    query: RegExp,
-    searchTarget: CodeMirrorEditor
-  ): Promise<ISearchMatch[]> {
-    this._cm = searchTarget;
-    return this._startQuery(query, false);
-  }
-
-  refreshOverlay() {
-    this._refreshOverlay();
-  }
-
-  private async _startQuery(
-    query: RegExp,
-    refreshOverlay: boolean = true
-  ): Promise<ISearchMatch[]> {
-    // no point in removing overlay in the middle of the search
-    await this.endQuery(false);
-
-    this._query = query;
-
-    CodeMirror.on(this._cm.doc, 'change', this._onDocChanged.bind(this));
-    if (refreshOverlay) {
-      this._refreshOverlay();
-    }
-    this._setInitialMatches(query);
-
-    const matches = this._parseMatchesFromState();
-    if (matches.length === 0) {
-      return [];
-    }
-    if (!this.isSubProvider) {
-      const cursorMatch = this._findNext(false);
-      const match =
-        cursorMatch &&
-        this._matchState[cursorMatch.from.line][cursorMatch.from.ch];
-      this._currentMatch = match;
-    }
-    return matches;
-  }
-
-  /**
-   * Clears state of a search provider to prepare for startQuery to be called
-   * in order to start a new query or refresh an existing one.
-   *
-   * @returns A promise that resolves when the search provider is ready to
-   * begin a new search.
-   */
-  async endQuery(removeOverlay = true): Promise<void> {
-    this._matchState = {};
-    this._currentMatch = null;
-
-    if (removeOverlay) {
-      this._cm.removeOverlay(this._overlay);
-    }
-    const from = this._cm.getCursor('from');
-    const to = this._cm.getCursor('to');
-    // Setting a reverse selection to allow search-as-you-type to maintain the
-    // current selected match.  See comment in _findNext for more details.
-    if (from !== to) {
-      this._cm.setSelection({
-        start: this._toEditorPos(to),
-        end: this._toEditorPos(from)
-      });
-    }
-    CodeMirror.off(this._cm.doc, 'change', this._onDocChanged.bind(this));
-  }
-
-  /**
-   * Resets UI state, removes all matches.
-   *
-   * @returns A promise that resolves when all state has been cleaned up.
-   */
-  async endSearch(): Promise<void> {
-    if (!this.isSubProvider) {
-      this._cm.focus();
-    }
-    return this.endQuery();
-  }
-
-  /**
-   * Move the current match indicator to the next match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  async highlightNext(): Promise<ISearchMatch | undefined> {
-    const cursorMatch = this._findNext(false);
-    if (!cursorMatch) {
-      return;
-    }
-    const match = this._matchState[cursorMatch.from.line][cursorMatch.from.ch];
-    this._currentMatch = match;
-    return match;
-  }
-
-  /**
-   * Move the current match indicator to the previous match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  async highlightPrevious(): Promise<ISearchMatch | undefined> {
-    const cursorMatch = this._findNext(true);
-    if (!cursorMatch) {
-      return;
-    }
-    const match = this._matchState[cursorMatch.from.line][cursorMatch.from.ch];
-    this._currentMatch = match;
-    return match;
-  }
-
-  /**
-   * Replace the currently selected match with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  async replaceCurrentMatch(newText: string): Promise<boolean> {
-    // If the current selection exactly matches the current match,
-    // replace it.  Otherwise, just select the next match after the cursor.
-    let replaceOccurred = false;
-    if (this._currentMatchIsSelected()) {
-      const cursor = this._cm.getSearchCursor(
-        this._query,
-        this._cm.getCursor('from'),
-        !this._query.ignoreCase
-      );
-      if (!cursor.findNext()) {
-        return replaceOccurred;
-      }
-      replaceOccurred = true;
-      cursor.replace(newText);
-    }
-    await this.highlightNext();
-    return replaceOccurred;
-  }
-
-  /**
-   * Replace all matches in the notebook with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  async replaceAllMatches(newText: string): Promise<boolean> {
-    let replaceOccurred = false;
-    return new Promise((resolve, _) => {
-      this._cm.operation(() => {
-        const cursor = this._cm.getSearchCursor(
-          this._query,
-          undefined,
-          !this._query.ignoreCase
-        );
-        while (cursor.findNext()) {
-          replaceOccurred = true;
-          cursor.replace(newText);
-        }
-        this._matchState = {};
-        this._currentMatch = null;
-        resolve(replaceOccurred);
-      });
-    });
-  }
-
-  /**
-   * Report whether or not this provider has the ability to search on the given object
-   */
-  static canSearchOn(domain: Widget): domain is CMMainAreaWidget {
-    return (
-      domain instanceof MainAreaWidget &&
-      domain.content instanceof FileEditor &&
-      domain.content.editor instanceof CodeMirrorEditor
-    );
-  }
-
-  /**
-   * The same list of matches provided by the startQuery promise resolution
-   */
-  get matches(): ISearchMatch[] {
-    return this._parseMatchesFromState();
-  }
-
-  get currentMatch(): ISearchMatch | null {
-    return this._currentMatch;
-  }
-
-  /**
-   * Signal indicating that something in the search has changed, so the UI should update
-   */
-  get changed(): ISignal<this, void> {
-    return this._changed;
-  }
-
-  /**
-   * The current index of the selected match.
-   */
-  get currentMatchIndex(): number | null {
-    if (!this._currentMatch) {
-      return null;
-    }
-    return this._currentMatch.index;
-  }
-
-  /**
-   * Set to true if the widget under search is read-only, false
-   * if it is editable.  Will be used to determine whether to show
-   * the replace option.
-   */
-  readonly isReadOnly = false;
-
-  clearSelection(): void {
-    return undefined;
-  }
-
-  get editor(): CodeMirrorEditor {
-    return this._cm;
-  }
-  /**
-   * Set whether or not the CodemirrorSearchProvider will wrap to the beginning
-   * or end of the document on invocations of highlightNext or highlightPrevious, respectively
-   */
-  isSubProvider = false;
-
-  private _onDocChanged(_: any, changeObj: CodeMirror.EditorChange) {
-    // If we get newlines added/removed, the line numbers across the
-    // match state are all shifted, so here we need to recalculate it
-    if (changeObj.text.length > 1 || (changeObj.removed?.length ?? 0) > 1) {
-      this._setInitialMatches(this._query);
-      this._changed.emit(undefined);
-    }
-  }
-
-  private _refreshOverlay() {
-    this._cm.operation(() => {
-      // clear search first
-      this._cm.removeOverlay(this._overlay);
-      this._overlay = this._getSearchOverlay();
-      this._cm.addOverlay(this._overlay);
-      this._changed.emit(undefined);
-    });
-  }
-
-  /**
-   * Do a full search on the entire document.
-   *
-   * This manually constructs the initial match state across the whole
-   * document. This must be done manually because the codemirror overlay
-   * is lazy-loaded, so it will only tokenize lines that are in or near
-   * the viewport.  This is sufficient for efficiently maintaining the
-   * state when changes are made to the document, as changes occur in or
-   * near the viewport, but to scan the whole document, a manual search
-   * across the entire content is required.
-   *
-   * @param query The search term
-   */
-  private _setInitialMatches(query: RegExp) {
-    this._matchState = {};
-
-    const start = CodeMirror.Pos(this._cm.doc.firstLine(), 0);
-    const end = CodeMirror.Pos(this._cm.doc.lastLine());
-    const content = this._cm.doc.getRange(start, end);
-    const lines = content.split('\n');
-    const totalMatchIndex = 0;
-    lines.forEach((line, lineNumber) => {
-      query.lastIndex = 0;
-      let match = query.exec(line);
-      while (match) {
-        const col = match.index;
-        const matchObj: ISearchMatch = {
-          text: match[0],
-          line: lineNumber,
-          column: col,
-          fragment: line,
-          index: totalMatchIndex
-        };
-        if (!this._matchState[lineNumber]) {
-          this._matchState[lineNumber] = {};
-        }
-        this._matchState[lineNumber][col] = matchObj;
-        match = query.exec(line);
-      }
-    });
-  }
-
-  private _getSearchOverlay() {
-    return {
-      /**
-       * Token function is called when a line needs to be processed -
-       * when the overlay is initially created, it's called on all lines;
-       * when a line is modified and needs to be re-evaluated, it's called
-       * on just that line.
-       *
-       * This implementation of the token function both constructs/maintains
-       * the overlay and keeps track of the match state as the document is
-       * updated while a search is active.
-       */
-      token: (stream: CodeMirror.StringStream) => {
-        const currentPos = stream.pos;
-        this._query.lastIndex = currentPos;
-        const lineText = stream.string;
-        const match = this._query.exec(lineText);
-        const line = (stream as any).lineOracle.line;
-
-        // If starting at position 0, the tokenization of this line has just started.
-        // Blow away everything on this line in the state so it can be updated.
-        if (
-          stream.start === currentPos &&
-          currentPos === 0 &&
-          !!this._matchState[line]
-        ) {
-          this._matchState[line] = {};
-        }
-        if (match && match.index === currentPos) {
-          // found match, add it to state
-          const matchLength = match[0].length;
-          const matchObj: ISearchMatch = {
-            text: lineText.substr(currentPos, matchLength),
-            line: line,
-            column: currentPos,
-            fragment: lineText,
-            index: 0 // fill in index when flattening, later
-          };
-          if (!this._matchState[line]) {
-            this._matchState[line] = {};
-          }
-          this._matchState[line][currentPos] = matchObj;
-          // move the stream along and return searching style for the token
-          stream.pos += matchLength || 1;
-
-          // if the last thing on the line was a match, make sure we still
-          // emit the changed signal so the display can pick up the updates
-          if (stream.eol()) {
-            this._changed.emit(undefined);
-          }
-          return 'searching';
-        } else if (match) {
-          // there's a match in the stream, advance the stream to its position
-          stream.pos = match.index;
-        } else {
-          // no matches, consume the rest of the stream
-          this._changed.emit(undefined);
-          stream.skipToEnd();
-        }
-      }
-    };
-  }
-
-  private _findNext(reverse: boolean): Private.ICodeMirrorMatch | null {
-    return this._cm.operation(() => {
-      const caseSensitive = this._query.ignoreCase;
-
-      // In order to support search-as-you-type, we needed a way to allow the first
-      // match to be selected when a search is started, but prevent the selected
-      // search to move for each new keypress.  To do this, when a search is ended,
-      // the cursor is reversed, putting the head at the 'from' position.  When a new
-      // search is started, the cursor we want is at the 'from' position, so that the same
-      // match is selected when the next key is entered (if it is still a match).
-      //
-      // When toggling through a search normally, the cursor is always set in the forward
-      // direction, so head is always at the 'to' position.  That way, if reverse = false,
-      // the search proceeds from the 'to' position during normal toggling.  If reverse = true,
-      // the search always proceeds from the 'anchor' position, which is at the 'from'.
-
-      const cursorToGet = reverse ? 'anchor' : 'head';
-      const lastPosition = this._cm.getCursor(cursorToGet);
-      const position = this._toEditorPos(lastPosition);
-      let cursor: CodeMirror.SearchCursor = this._cm.getSearchCursor(
-        this._query,
-        lastPosition,
-        !caseSensitive
-      );
-      if (!cursor.find(reverse)) {
-        // if we don't want to loop, no more matches found, reset the cursor and exit
-        if (this.isSubProvider) {
-          this._cm.setCursorPosition(position, { scroll: false });
-          this._currentMatch = null;
-          return null;
-        }
-
-        // if we do want to loop, try searching from the bottom/top
-        const startOrEnd = reverse
-          ? CodeMirror.Pos(this._cm.lastLine())
-          : CodeMirror.Pos(this._cm.firstLine(), 0);
-        cursor = this._cm.getSearchCursor(
-          this._query,
-          startOrEnd,
-          !caseSensitive
-        );
-        if (!cursor.find(reverse)) {
-          return null;
-        }
-      }
-      const fromPos: CodeMirror.Position = cursor.from();
-      const toPos: CodeMirror.Position = cursor.to();
-      const selRange: CodeEditor.IRange = {
-        start: {
-          line: fromPos.line,
-          column: fromPos.ch
-        },
-        end: {
-          line: toPos.line,
-          column: toPos.ch
-        }
-      };
-
-      this._cm.setSelection(selRange);
-      this._cm.scrollIntoView(
-        {
-          from: fromPos,
-          to: toPos
-        },
-        100
-      );
-      return {
-        from: fromPos,
-        to: toPos
-      };
-    });
-  }
-
-  private _parseMatchesFromState(): ISearchMatch[] {
-    let index = 0;
-    // Flatten state map and update the index of each match
-    const matches: ISearchMatch[] = Object.keys(this._matchState).reduce(
-      (result: ISearchMatch[], lineNumber: string) => {
-        const lineKey = parseInt(lineNumber, 10);
-        const lineMatches: { [key: number]: ISearchMatch } = this._matchState[
-          lineKey
-        ];
-        Object.keys(lineMatches).forEach((pos: string) => {
-          const posKey = parseInt(pos, 10);
-          const match: ISearchMatch = lineMatches[posKey];
-          match.index = index;
-          index += 1;
-          result.push(match);
-        });
-        return result;
-      },
-      []
-    );
-    return matches;
-  }
-
-  private _toEditorPos(posIn: CodeMirror.Position): CodeEditor.IPosition {
-    return {
-      line: posIn.line,
-      column: posIn.ch
-    };
-  }
-
-  private _currentMatchIsSelected(): boolean {
-    if (!this._currentMatch) {
-      return false;
-    }
-    const currentSelection = this._cm.getSelection();
-    const currentSelectionLength =
-      currentSelection.end.column - currentSelection.start.column;
-    const selectionIsOneLine =
-      currentSelection.start.line === currentSelection.end.line;
-    return (
-      this._currentMatch.line === currentSelection.start.line &&
-      this._currentMatch.column === currentSelection.start.column &&
-      this._currentMatch.text.length === currentSelectionLength &&
-      selectionIsOneLine
-    );
-  }
-
-  private _query: RegExp;
-  private _cm: CodeMirrorEditor;
-  private _currentMatch: ISearchMatch | null;
-  private _matchState: MatchMap = {};
-  private _changed = new Signal<this, void>(this);
-  private _overlay: any;
-}
-
-export class SearchState {
-  public posFrom: CodeMirror.Position;
-  public posTo: CodeMirror.Position;
-  public lastQuery: string;
-  public query: RegExp;
-}
-
-namespace Private {
-  export interface ICodeMirrorMatch {
-    from: CodeMirror.Position;
-    to: CodeMirror.Position;
-  }
-}
diff --git a/packages/documentsearch/src/providers/genericsearchprovider.ts b/packages/documentsearch/src/providers/genericsearchprovider.ts
index 583ab12ca396..ba930a45d582 100644
--- a/packages/documentsearch/src/providers/genericsearchprovider.ts
+++ b/packages/documentsearch/src/providers/genericsearchprovider.ts
@@ -1,14 +1,22 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
-import { ISearchMatch, ISearchProvider } from '../interfaces';
+import {
+  IHTMLSearchMatch,
+  ISearchProvider,
+  ISearchProviderRegistry
+} from '../tokens';
+import { SearchProvider } from '../searchprovider';
+import { ITranslator } from '@jupyterlab/translation';
 
 export const FOUND_CLASSES = ['cm-string', 'cm-overlay', 'cm-searching'];
 const SELECTED_CLASSES = ['CodeMirror-selectedtext'];
 
-export class GenericSearchProvider implements ISearchProvider<Widget> {
+/**
+ * HTML search engine
+ */
+export class HTMLSearchEngine {
   /**
    * We choose opt out as most node types should be searched (e.g. script).
    * Even nodes like <data>, could have textContent we care about.
@@ -60,263 +68,208 @@ export class GenericSearchProvider implements ISearchProvider<Widget> {
   };
 
   /**
-   * Get an initial query value if applicable so that it can be entered
-   * into the search box as an initial query
+   * Search for a `query` in a DOM tree.
    *
-   * @returns Initial value used to populate the search box.
+   * @param query Regular expression to search
+   * @param rootNode DOM root node to search in
+   * @returns The list of matches
    */
-  getInitialQuery(searchTarget: Widget): any {
-    return '';
-  }
+  static search(query: RegExp, rootNode: Node): Promise<IHTMLSearchMatch[]> {
+    if (!(rootNode instanceof Node)) {
+      console.warn(
+        'Unable to search with HTMLSearchEngine the provided object.',
+        rootNode
+      );
+      return Promise.resolve([]);
+    }
 
-  /**
-   * Initialize the search using the provided options.  Should update the UI
-   * to highlight all matches and "select" whatever the first match should be.
-   *
-   * @param query A RegExp to be use to perform the search
-   * @param searchTarget The widget to be searched
-   * @param [filters={}] Filter parameters to pass to provider
-   *
-   * @returns A promise that resolves with a list of all matches
-   */
-  async startQuery(
-    query: RegExp,
-    searchTarget: Widget,
-    filters = {}
-  ): Promise<ISearchMatch[]> {
-    const that = this; // eslint-disable-line
-    // No point in removing overlay in the middle of the search
-    await this.endQuery(false);
-
-    this._widget = searchTarget;
-    this._query = query;
-    this._mutationObserver.disconnect();
+    if (!query.global) {
+      query = new RegExp(query.source, query.flags + 'g');
+    }
 
-    const matches: IGenericSearchMatch[] = [];
-    const walker = document.createTreeWalker(
-      this._widget.node,
-      NodeFilter.SHOW_TEXT,
-      {
-        acceptNode: node => {
-          // Filter subtrees of UNSUPPORTED_ELEMENTS and nodes that
-          // do not contain our search text
-          let parentElement = node.parentElement!;
-          while (parentElement !== this._widget.node) {
-            if (
-              parentElement.nodeName in
-              GenericSearchProvider.UNSUPPORTED_ELEMENTS
-            ) {
-              return NodeFilter.FILTER_REJECT;
-            }
-            parentElement = parentElement.parentElement!;
+    const matches: IHTMLSearchMatch[] = [];
+    const walker = document.createTreeWalker(rootNode, NodeFilter.SHOW_TEXT, {
+      acceptNode: node => {
+        // Filter subtrees of UNSUPPORTED_ELEMENTS and nodes that
+        // do not contain our search text
+        let parentElement = node.parentElement!;
+        while (parentElement !== rootNode) {
+          if (parentElement.nodeName in HTMLSearchEngine.UNSUPPORTED_ELEMENTS) {
+            return NodeFilter.FILTER_REJECT;
           }
-          return that._query.test(node.textContent!)
-            ? NodeFilter.FILTER_ACCEPT
-            : NodeFilter.FILTER_REJECT;
+          parentElement = parentElement.parentElement!;
         }
-      },
-      false
-    );
-    const nodes: (Node | null)[] = [];
-    const originalNodes: Node[] = [];
-    // We MUST gather nodes first, otherwise the updates below will find each result twice
-    let node = walker.nextNode();
-    while (node) {
-      nodes.push(node);
-      /* We store them here as we want to avoid saving a modified one
-       * This happens with something like this: <pre><span>Hello</span> world</pre> and looking for o
-       * The o in world is found after the o in hello which means the pre could have been modified already
-       * While there may be a better data structure to do this for performance, this was easy to reason about.
-       */
-      originalNodes.push(node.parentElement!.cloneNode(true));
-      node = walker.nextNode();
-    }
-    // We'll need to copy the regexp to ensure its 'g' and that we start the index count from 0
-    const flags =
-      this._query.flags.indexOf('g') === -1 ? query.flags + 'g' : query.flags;
-
-    nodes.forEach((node, nodeIndex) => {
-      const q = new RegExp(query.source, flags);
-      const subsections = [];
-      let match = q.exec(node!.textContent!);
-      while (match) {
-        subsections.push({
-          start: match.index,
-          end: match.index + match[0].length,
-          text: match[0]
-        });
-        match = q.exec(node!.textContent!);
+        return query.test(node.textContent!)
+          ? NodeFilter.FILTER_ACCEPT
+          : NodeFilter.FILTER_REJECT;
       }
-      const originalNode = originalNodes[nodeIndex];
-      const originalLength = node!.textContent!.length; // Node length will change below
-      let lastNodeAdded = null;
-      // Go backwards as index may change if we go forwards
-      const newMatches = [];
-      for (let idx = subsections.length - 1; idx >= 0; --idx) {
-        const { start, end, text } = subsections[idx];
-        // TODO: support tspan for svg when svg support is added
-        const spannedNode = document.createElement('span');
-        spannedNode.classList.add(...FOUND_CLASSES);
-        spannedNode.textContent = text;
-        // Splice the text out before we add it back in with a span
-        node!.textContent = `${node!.textContent!.slice(
-          0,
-          start
-        )}${node!.textContent!.slice(end)}`;
-        // Are we replacing somewhere in the middle?
-        if (node?.nodeType == Node.TEXT_NODE) {
-          const endText = (node as Text).splitText(start);
-          node!.parentNode!.insertBefore(spannedNode, endText);
-          // Are we replacing from the start?
-        } else if (start === 0) {
-          node!.parentNode!.prepend(spannedNode);
-          // Are we replacing at the end?
-        } else if (end === originalLength) {
-          node!.parentNode!.append(spannedNode);
-          // Are the two results are adjacent to each other?
-        } else if (lastNodeAdded && end === subsections[idx + 1].start) {
-          node!.parentNode!.insertBefore(spannedNode, lastNodeAdded);
-        }
-        lastNodeAdded = spannedNode;
-        newMatches.unshift({
-          text,
-          fragment: '',
-          line: 0,
-          column: 0,
-          index: -1, // We set this later to ensure we get order correct
-          // GenericSearchFields
-          matchesIndex: -1,
-          indexInOriginal: idx,
-          spanElement: spannedNode,
-          originalNode
+    });
+
+    let node: Node | null = null;
+    while ((node = walker.nextNode()) !== null) {
+      // Reset query index
+      query.lastIndex = 0;
+      let match: RegExpExecArray | null = null;
+      while ((match = query.exec(node.textContent!)) !== null) {
+        matches.push({
+          text: match[0],
+          position: match.index,
+          node: node as Text
         });
       }
-      matches.push(...newMatches);
-    });
-    matches.forEach((match, idx) => {
-      // This may be changed when this is a subprovider :/
-      match.index = idx;
-      // TODO: matchesIndex is declared as readonly. Why are we setting it here?
-      (match as any).matchesIndex = idx;
-    });
-    if (!this.isSubProvider && matches.length > 0) {
-      this._currentMatch = matches[0];
     }
-    // Watch for future changes:
-    this._mutationObserver.observe(
-      this._widget.node,
-      // https://developer.mozilla.org/en-US/docs/Web/API/MutationObserverInit
-      {
-        attributes: false,
-        characterData: true,
-        childList: true,
-        subtree: true
-      }
-    );
 
-    this._matches = matches;
-    return this._matches;
+    return Promise.resolve(matches);
   }
+}
 
-  refreshOverlay() {
-    // We don't have an overlay, we are directly changing the DOM
+/**
+ * Generic DOM tree search provider.
+ */
+export class GenericSearchProvider extends SearchProvider<Widget> {
+  /**
+   * Report whether or not this provider has the ability to search on the given object
+   */
+  static isApplicable(domain: Widget): boolean {
+    return domain instanceof Widget;
   }
 
   /**
-   * Clears state of a search provider to prepare for startQuery to be called
-   * in order to start a new query or refresh an existing one.
+   * Instantiate a generic search provider for the widget.
    *
-   * @returns A promise that resolves when the search provider is ready to
-   * begin a new search.
+   * #### Notes
+   * The widget provided is always checked using `isApplicable` before calling
+   * this factory.
+   *
+   * @param widget The widget to search on
+   * @param registry The search provider registry
+   * @param translator [optional] The translator object
+   *
+   * @returns The search provider on the widget
    */
-  async endQuery(removeOverlay = true): Promise<void> {
-    this._matches.forEach(match => {
-      // We already took care of this parent with another match
-      if (match.indexInOriginal !== 0) {
-        return;
-      }
-      match.spanElement.parentElement!.replaceWith(match.originalNode);
-    });
-    this._matches = [];
-    this._currentMatch = null;
-    this._mutationObserver.disconnect();
+  static createNew(
+    widget: Widget,
+    registry: ISearchProviderRegistry,
+    translator?: ITranslator
+  ): ISearchProvider {
+    return new GenericSearchProvider(widget);
+  }
+
+  /**
+   * The current index of the selected match.
+   */
+  get currentMatchIndex(): number | null {
+    return this._currentMatchIndex >= 0 ? this._currentMatchIndex : null;
+  }
+
+  /**
+   * The current match
+   */
+  get currentMatch(): IHTMLSearchMatch | null {
+    return this._matches[this._currentMatchIndex] ?? null;
+  }
+
+  /**
+   * The current matches
+   */
+  get matches(): IHTMLSearchMatch[] {
+    // Ensure that no other fn can overwrite matches index property
+    // We shallow clone each node
+    return this._matches
+      ? this._matches.map(m => Object.assign({}, m))
+      : this._matches;
+  }
+
+  /**
+   * The number of matches.
+   */
+  get matchesCount(): number | null {
+    return this._matches.length;
   }
 
   /**
-   * Resets UI state, removes all matches.
+   * Set to true if the widget under search is read-only, false
+   * if it is editable.  Will be used to determine whether to show
+   * the replace option.
+   */
+  readonly isReadOnly = true;
+
+  /**
+   * Clear currently highlighted match.
+   */
+  clearHighlight(): Promise<void> {
+    if (this._currentMatchIndex >= 0) {
+      const hit = this._markNodes[this._currentMatchIndex];
+      hit.classList.remove(...SELECTED_CLASSES);
+    }
+    this._currentMatchIndex = -1;
+
+    return Promise.resolve();
+  }
+
+  /**
+   * Dispose of the resources held by the search provider.
    *
-   * @returns A promise that resolves when all state has been cleaned up.
+   * #### Notes
+   * If the object's `dispose` method is called more than once, all
+   * calls made after the first will be a no-op.
+   *
+   * #### Undefined Behavior
+   * It is undefined behavior to use any functionality of the object
+   * after it has been disposed unless otherwise explicitly noted.
    */
-  async endSearch(): Promise<void> {
-    return this.endQuery();
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    this.endQuery().catch(reason => {
+      console.error(`Failed to end search query.`, reason);
+    });
+    super.dispose();
   }
 
   /**
    * Move the current match indicator to the next match.
    *
+   * @param loop Whether to loop within the matches list.
+   *
    * @returns A promise that resolves once the action has completed.
    */
-  async highlightNext(): Promise<ISearchMatch | undefined> {
-    return this._highlightNext(false);
+  async highlightNext(loop?: boolean): Promise<IHTMLSearchMatch | undefined> {
+    return this._highlightNext(false, loop ?? true) ?? undefined;
   }
 
   /**
    * Move the current match indicator to the previous match.
    *
+   * @param loop Whether to loop within the matches list.
+   *
    * @returns A promise that resolves once the action has completed.
    */
-  async highlightPrevious(): Promise<ISearchMatch | undefined> {
-    return this._highlightNext(true);
-  }
-
-  private _highlightNext(reverse: boolean): ISearchMatch | undefined {
-    if (this._matches.length === 0) {
-      return undefined;
-    }
-    if (!this._currentMatch) {
-      this._currentMatch = reverse
-        ? this._matches[this.matches.length - 1]
-        : this._matches[0];
-    } else {
-      this._currentMatch.spanElement.classList.remove(...SELECTED_CLASSES);
-
-      let nextIndex = reverse
-        ? this._currentMatch.matchesIndex - 1
-        : this._currentMatch.matchesIndex + 1;
-      // When we are a subprovider, don't loop
-      if (this.isSubProvider) {
-        if (nextIndex < 0 || nextIndex >= this._matches.length) {
-          this._currentMatch = null;
-          return undefined;
-        }
-      }
-      // Cheap way to make this a circular buffer
-      nextIndex = (nextIndex + this._matches.length) % this._matches.length;
-      this._currentMatch = this._matches[nextIndex];
-    }
-    if (this._currentMatch) {
-      this._currentMatch.spanElement.classList.add(...SELECTED_CLASSES);
-      // If not in view, scroll just enough to see it
-      if (!elementInViewport(this._currentMatch.spanElement)) {
-        this._currentMatch.spanElement.scrollIntoView(reverse);
-      }
-      this._currentMatch.spanElement.focus();
-    }
-    return this._currentMatch;
+  async highlightPrevious(
+    loop?: boolean
+  ): Promise<IHTMLSearchMatch | undefined> {
+    return this._highlightNext(true, loop ?? true) ?? undefined;
   }
 
   /**
    * Replace the currently selected match with the provided text
    *
+   * @param newText The replacement text
+   * @param loop Whether to loop within the matches list.
+   *
    * @returns A promise that resolves with a boolean indicating whether a replace occurred.
    */
-  async replaceCurrentMatch(newText: string): Promise<boolean> {
+  async replaceCurrentMatch(newText: string, loop?: boolean): Promise<boolean> {
     return Promise.resolve(false);
   }
 
   /**
    * Replace all matches in the notebook with the provided text
    *
+   * @param newText The replacement text
+   *
    * @returns A promise that resolves with a boolean indicating whether a replace occurred.
    */
   async replaceAllMatches(newText: string): Promise<boolean> {
@@ -325,91 +278,149 @@ export class GenericSearchProvider implements ISearchProvider<Widget> {
   }
 
   /**
-   * Report whether or not this provider has the ability to search on the given object
+   * Initialize the search using the provided options.  Should update the UI
+   * to highlight all matches and "select" whatever the first match should be.
+   *
+   * @param query A RegExp to be use to perform the search
+   * @param filters Filter parameters to pass to provider
    */
-  static canSearchOn(domain: Widget) {
-    return domain instanceof Widget;
-  }
+  async startQuery(query: RegExp | null, filters = {}): Promise<void> {
+    await this.endQuery();
+    this._query = query;
 
-  /**
-   * The same list of matches provided by the startQuery promise resolution
-   */
-  get matches(): ISearchMatch[] {
-    // Ensure that no other fn can overwrite matches index property
-    // We shallow clone each node
-    return this._matches
-      ? this._matches.map(m => Object.assign({}, m))
-      : this._matches;
+    if (query === null) {
+      return Promise.resolve();
+    }
+
+    const matches = await HTMLSearchEngine.search(query, this.widget.node);
+
+    // Transform the DOM
+    let nodeIdx = 0;
+    while (nodeIdx < matches.length) {
+      let activeNode = matches[nodeIdx].node;
+      let parent = activeNode.parentNode!;
+
+      let subMatches = [matches[nodeIdx]];
+      while (
+        ++nodeIdx < matches.length &&
+        matches[nodeIdx].node === activeNode
+      ) {
+        subMatches.unshift(matches[nodeIdx]);
+      }
+
+      const markedNodes = subMatches.map(match => {
+        // TODO: support tspan for svg when svg support is added
+        const markedNode = document.createElement('mark');
+        markedNode.classList.add(...FOUND_CLASSES);
+        markedNode.textContent = match.text;
+
+        const newNode = activeNode.splitText(match.position);
+        newNode.textContent = newNode.textContent!.slice(match.text.length);
+        parent.insertBefore(markedNode, newNode);
+        return markedNode;
+      });
+
+      // Insert node in reverse order as we replace from last to first
+      // to maintain match position.
+      for (let i = markedNodes.length - 1; i >= 0; i--) {
+        this._markNodes.push(markedNodes[i]);
+      }
+    }
+
+    // Watch for future changes:
+    this._mutationObserver.observe(
+      this.widget.node,
+      // https://developer.mozilla.org/en-US/docs/Web/API/MutationObserverInit
+      {
+        attributes: false,
+        characterData: true,
+        childList: true,
+        subtree: true
+      }
+    );
+
+    this._matches = matches;
   }
 
   /**
-   * Signal indicating that something in the search has changed, so the UI should update
+   * Clear the highlighted matches and any internal state.
    */
-  get changed(): ISignal<this, void> {
-    return this._changed;
+  async endQuery(): Promise<void> {
+    this._mutationObserver.disconnect();
+    this._markNodes.forEach(el => {
+      const parent = el.parentNode!;
+      parent.replaceChild(document.createTextNode(el.textContent!), el);
+      parent.normalize();
+    });
+    this._markNodes = [];
+    this._matches = [];
+    this._currentMatchIndex = -1;
   }
 
-  /**
-   * The current index of the selected match.
-   */
-  get currentMatchIndex(): number | null {
-    if (!this._currentMatch) {
+  private _highlightNext(
+    reverse: boolean,
+    loop: boolean
+  ): IHTMLSearchMatch | null {
+    if (this._matches.length === 0) {
       return null;
     }
-    return this._currentMatch.index;
-  }
+    if (this._currentMatchIndex === -1) {
+      this._currentMatchIndex = reverse ? this.matches.length - 1 : 0;
+    } else {
+      const hit = this._markNodes[this._currentMatchIndex];
+      hit.classList.remove(...SELECTED_CLASSES);
 
-  get currentMatch(): ISearchMatch | null {
-    return this._currentMatch;
-  }
+      this._currentMatchIndex = reverse
+        ? this._currentMatchIndex - 1
+        : this._currentMatchIndex + 1;
+      if (
+        loop &&
+        (this._currentMatchIndex < 0 ||
+          this._currentMatchIndex >= this._matches.length)
+      ) {
+        // Cheap way to make this a circular buffer
+        this._currentMatchIndex =
+          (this._currentMatchIndex + this._matches.length) %
+          this._matches.length;
+      }
+    }
 
-  /**
-   * Set to true if the widget under search is read-only, false
-   * if it is editable.  Will be used to determine whether to show
-   * the replace option.
-   */
-  readonly isReadOnly = true;
+    if (
+      this._currentMatchIndex >= 0 &&
+      this._currentMatchIndex < this._matches.length
+    ) {
+      const hit = this._markNodes[this._currentMatchIndex];
+      hit.classList.add(...SELECTED_CLASSES);
+      // If not in view, scroll just enough to see it
+      if (!elementInViewport(hit)) {
+        hit.scrollIntoView(reverse);
+      }
+      hit.focus();
 
-  clearSelection(): void {
-    return;
+      return this._matches[this._currentMatchIndex];
+    } else {
+      this._currentMatchIndex = -1;
+      return null;
+    }
   }
 
-  /**
-   * Set whether or not this will wrap to the beginning
-   * or end of the document on invocations of highlightNext or highlightPrevious, respectively
-   */
-  isSubProvider = false;
-
   private async _onWidgetChanged(
     mutations: MutationRecord[],
     observer: MutationObserver
   ) {
+    this._currentMatchIndex = -1;
     // This is typically cheap, but we do not control the rate of change or size of the output
-    await this.startQuery(this._query, this._widget);
-    this._changed.emit(undefined);
+    await this.startQuery(this._query);
+    this._stateChanged.emit();
   }
 
-  private _query: RegExp;
-  private _widget: Widget;
-  private _currentMatch: IGenericSearchMatch | null;
-  private _matches: IGenericSearchMatch[] = [];
+  private _query: RegExp | null;
+  private _currentMatchIndex: number;
+  private _matches: IHTMLSearchMatch[] = [];
   private _mutationObserver: MutationObserver = new MutationObserver(
     this._onWidgetChanged.bind(this)
   );
-  private _changed = new Signal<this, void>(this);
-}
-
-export interface IGenericSearchMatch extends ISearchMatch {
-  readonly originalNode: Node;
-  readonly spanElement: HTMLElement;
-  /*
-   * Index among spans within the same originalElement
-   */
-  readonly indexInOriginal: number;
-  /**
-   * Index in the matches array
-   */
-  readonly matchesIndex: number;
+  private _markNodes = new Array<HTMLSpanElement>();
 }
 
 function elementInViewport(el: HTMLElement): boolean {
diff --git a/packages/documentsearch/src/providers/notebooksearchprovider.ts b/packages/documentsearch/src/providers/notebooksearchprovider.ts
deleted file mode 100644
index d844ed39876c..000000000000
--- a/packages/documentsearch/src/providers/notebooksearchprovider.ts
+++ /dev/null
@@ -1,511 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-import { Cell, CodeCell, MarkdownCell } from '@jupyterlab/cells';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
-import { NotebookPanel } from '@jupyterlab/notebook';
-import { ArrayExt } from '@lumino/algorithm';
-import { ISignal, Signal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
-import CodeMirror from 'codemirror';
-import { ISearchMatch, ISearchProvider } from '../index';
-import { CodeMirrorSearchProvider } from './codemirrorsearchprovider';
-import { GenericSearchProvider } from './genericsearchprovider';
-
-interface ICellSearchPair {
-  cell: Cell;
-  provider: CodeMirrorSearchProvider | GenericSearchProvider;
-}
-
-export interface INotebookFilters {
-  /**
-   * Should cell output be searched?
-   */
-  output: boolean;
-
-  /**
-   * Should search be within the selected cell(s)?
-   */
-  selectedCells: boolean;
-}
-
-export class NotebookSearchProvider implements ISearchProvider<NotebookPanel> {
-  /**
-   * Get an initial query value if applicable so that it can be entered
-   * into the search box as an initial query
-   *
-   * @returns Initial value used to populate the search box.
-   */
-  getInitialQuery(searchTarget: NotebookPanel): unknown {
-    const activeCell = searchTarget.content.activeCell;
-    const selection = (activeCell?.editor as
-      | CodeMirrorEditor
-      | undefined)?.doc.getSelection();
-    // if there are newlines, just return empty string
-    return selection?.search(/\r?\n|\r/g) === -1 ? selection : '';
-  }
-
-  /**
-   * Initialize the search using the provided options. Should update the UI
-   * to highlight all matches and "select" whatever the first match should be.
-   *
-   * @param query A RegExp to be use to perform the search
-   * @param searchTarget The widget to be searched
-   * @param filters Filter parameters to pass to provider
-   *
-   * @returns A promise that resolves with a list of all matches
-   */
-  async startQuery(
-    query: RegExp,
-    searchTarget: NotebookPanel,
-    filters: INotebookFilters | undefined
-  ): Promise<ISearchMatch[]> {
-    this._searchTarget = searchTarget;
-    let cells = this._searchTarget.content.widgets;
-
-    this._filters =
-      !filters || Object.entries(filters).length === 0
-        ? { output: true, selectedCells: false }
-        : filters;
-
-    const selectedCells = cells.filter(cell =>
-      this._searchTarget!.content.isSelectedOrActive(cell)
-    );
-    if (this._filters.selectedCells && selectedCells.length > 0) {
-      cells = selectedCells;
-    }
-
-    // hide the current notebook widget to prevent expensive layout re-calculation operations
-    this._searchTarget.hide();
-
-    let indexTotal = 0;
-    const allMatches: ISearchMatch[] = [];
-    // For each cell, create a search provider and collect the matches
-
-    for (const cell of cells) {
-      const cmEditor = cell.editor as CodeMirrorEditor;
-      const cmSearchProvider = new CodeMirrorSearchProvider();
-      cmSearchProvider.isSubProvider = true;
-
-      // If a rendered MarkdownCell contains a match, unrender it so that
-      // CodeMirror can show the match(es).  If the MarkdownCell is not
-      // rendered, putting CodeMirror on the page, CodeMirror will not run
-      // the mode, which will prevent the search from occurring.
-      // Keep track so that the cell can be rerendered when the search is ended
-      // or if there are no matches
-      let cellShouldReRender = false;
-      if (cell instanceof MarkdownCell && cell.rendered) {
-        cell.rendered = false;
-        cellShouldReRender = true;
-      }
-
-      // Unhide hidden cells for the same reason as above
-      if (cell.inputHidden) {
-        cell.inputHidden = false;
-      }
-      // chain promises to ensure indexing is sequential
-      const matchesFromCell = await cmSearchProvider.startQueryCodeMirror(
-        query,
-        cmEditor
-      );
-      if (cell instanceof MarkdownCell) {
-        if (matchesFromCell.length !== 0) {
-          // un-render markdown cells with matches
-          this._unRenderedMarkdownCells.push(cell);
-        } else if (cellShouldReRender) {
-          // was rendered previously, no need to refresh
-          cell.rendered = true;
-        }
-      }
-      if (matchesFromCell.length !== 0) {
-        cmSearchProvider.refreshOverlay();
-        this._cellsWithMatches.push(cell);
-      }
-
-      // update the match indices to reflect the whole document index values
-      matchesFromCell.forEach(match => {
-        match.index = match.index + indexTotal;
-      });
-      indexTotal += matchesFromCell.length;
-
-      // search has been initialized, connect the changed signal
-      cmSearchProvider.changed.connect(this._onSearchProviderChanged, this);
-
-      allMatches.concat(matchesFromCell);
-
-      this._searchProviders.push({
-        cell: cell,
-        provider: cmSearchProvider
-      });
-
-      if (cell instanceof CodeCell && this._filters.output) {
-        const outputProvider = new GenericSearchProvider();
-        outputProvider.isSubProvider = true;
-        const matchesFromOutput = await outputProvider.startQuery(
-          query,
-          cell.outputArea
-        );
-        matchesFromOutput.map(match => {
-          match.index = match.index + indexTotal;
-        });
-        indexTotal += matchesFromOutput.length;
-
-        allMatches.concat(matchesFromOutput);
-
-        outputProvider.changed.connect(this._onSearchProviderChanged, this);
-
-        this._searchProviders.push({
-          cell: cell,
-          provider: outputProvider
-        });
-      }
-    }
-
-    // show the widget again, recalculation of layout will matter again
-    // and so that the next step will scroll correctly to the first match
-    this._searchTarget.show();
-
-    this._currentMatch = await this._stepNext(
-      this._updatedCurrentProvider(false)!
-    );
-    this._refreshCurrentCellEditor();
-
-    this._refreshCellsEditorsInBackground(this._cellsWithMatches);
-
-    return allMatches;
-  }
-
-  /**
-   * Gradually refresh cells in the background so that the user will not
-   * experience frozen interface, `n` cells at a time.
-   */
-  private _refreshCellsEditorsInBackground(cells: Cell[], n: number = 5) {
-    let i = 0;
-
-    const refreshNextNCells = () => {
-      for (let stop = i + n; i < stop && i < cells.length; i++) {
-        cells[i].editor.refresh();
-      }
-      if (i < cells.length) {
-        window.setTimeout(refreshNextNCells, 0);
-      }
-    };
-    window.setTimeout(refreshNextNCells, 0);
-  }
-
-  /**
-   * Refresh the editor in the cell for the current match.
-   */
-  private _refreshCurrentCellEditor() {
-    const notebook = this._searchTarget!.content;
-    notebook.activeCell!.editor.refresh();
-  }
-
-  /**
-   * Clears state of a search provider to prepare for startQuery to be called
-   * in order to start a new query or refresh an existing one.
-   *
-   * @returns A promise that resolves when the search provider is ready to
-   * begin a new search.
-   */
-  async endQuery(): Promise<void> {
-    this._searchTarget!.hide();
-
-    const queriesEnded: Promise<void>[] = [];
-    this._searchProviders.forEach(({ provider }) => {
-      queriesEnded.push(provider.endQuery());
-      provider.changed.disconnect(this._onSearchProviderChanged, this);
-    });
-    Signal.disconnectBetween(this._searchTarget!.model!.cells, this);
-
-    this._searchProviders = [];
-    this._currentProvider = null;
-    this._unRenderedMarkdownCells.forEach((cell: MarkdownCell) => {
-      // Guard against the case where markdown cells have been deleted
-      if (!cell.isDisposed) {
-        cell.rendered = true;
-      }
-    });
-    this._unRenderedMarkdownCells = [];
-    await Promise.all(queriesEnded);
-    this._searchTarget!.show();
-
-    this._refreshCurrentCellEditor();
-    // re-render all non-markdown cells with matches (which were rendered, thus do not need refreshing)
-    this._refreshCellsEditorsInBackground(
-      this._cellsWithMatches.filter(
-        (cell: Cell) => !(cell instanceof MarkdownCell)
-      )
-    );
-    this._cellsWithMatches = [];
-  }
-
-  /**
-   * Resets UI state, removes all matches.
-   *
-   * @returns A promise that resolves when all state has been cleaned up.
-   */
-  async endSearch(): Promise<void> {
-    this._searchTarget!.hide();
-    Signal.disconnectBetween(this._searchTarget!.model!.cells, this);
-
-    const index = this._searchTarget!.content.activeCellIndex;
-    const searchEnded: Promise<void>[] = [];
-    this._searchProviders.forEach(({ provider }) => {
-      searchEnded.push(provider.endSearch());
-      provider.changed.disconnect(this._onSearchProviderChanged, this);
-    });
-
-    this._searchProviders = [];
-    this._currentProvider = null;
-    this._unRenderedMarkdownCells.forEach((cell: MarkdownCell) => {
-      cell.rendered = true;
-    });
-    this._unRenderedMarkdownCells = [];
-
-    this._searchTarget!.content.activeCellIndex = index;
-    this._searchTarget!.content.mode = 'edit';
-    this._currentMatch = null;
-    await Promise.all(searchEnded);
-    this._searchTarget!.show();
-    this._refreshCurrentCellEditor();
-    this._searchTarget = null;
-
-    // re-render all non-markdown cells with matches (which were rendered, thus do not need refreshing)
-    this._refreshCellsEditorsInBackground(
-      this._cellsWithMatches.filter(
-        (cell: Cell) => !(cell instanceof MarkdownCell)
-      )
-    );
-    this._cellsWithMatches = [];
-  }
-
-  /**
-   * Move the current match indicator to the next match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  async highlightNext(): Promise<ISearchMatch | undefined> {
-    this._currentMatch = await this._stepNext(
-      this._updatedCurrentProvider(false)!
-    );
-    return this._currentMatch;
-  }
-
-  /**
-   * Move the current match indicator to the previous match.
-   *
-   * @returns A promise that resolves once the action has completed.
-   */
-  async highlightPrevious(): Promise<ISearchMatch | undefined> {
-    this._currentMatch = await this._stepNext(
-      this._updatedCurrentProvider(true)!,
-      true
-    );
-    return this._currentMatch;
-  }
-
-  /**
-   * Replace the currently selected match with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  async replaceCurrentMatch(newText: string): Promise<boolean> {
-    const notebook = this._searchTarget!.content;
-    const editor = notebook.activeCell!.editor as CodeMirrorEditor;
-    let replaceOccurred = false;
-    if (this._currentMatchIsSelected(editor)) {
-      const { provider } = this._currentProvider!;
-      replaceOccurred = await provider.replaceCurrentMatch(newText);
-      if (replaceOccurred) {
-        this._currentMatch = provider.currentMatch;
-        // If there was a replacement and there is another match, then the CodeMirrorSearchProvider
-        // already highlighted the next match, so we can return early to avoid skipping a match.
-        if (this._currentMatch) {
-          return replaceOccurred;
-        }
-      }
-    }
-    await this.highlightNext();
-    return replaceOccurred;
-  }
-
-  /**
-   * Replace all matches in the notebook with the provided text
-   *
-   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
-   */
-  async replaceAllMatches(newText: string): Promise<boolean> {
-    let replaceOccurred = false;
-    for (const index in this._searchProviders) {
-      const { provider } = this._searchProviders[index];
-      const singleReplaceOccurred = await provider.replaceAllMatches(newText);
-      replaceOccurred = singleReplaceOccurred ? true : replaceOccurred;
-    }
-    this._currentMatch = null;
-    return replaceOccurred;
-  }
-
-  /**
-   * Report whether or not this provider has the ability to search on the given object
-   */
-  static canSearchOn(domain: Widget): domain is NotebookPanel {
-    // check to see if the CMSearchProvider can search on the
-    // first cell, false indicates another editor is present
-    return domain instanceof NotebookPanel;
-  }
-
-  /**
-   * The same list of matches provided by the startQuery promise resolution
-   */
-  get matches(): ISearchMatch[] {
-    return ([] as ISearchMatch[]).concat(...this._getMatchesFromCells());
-  }
-
-  /**
-   * Signal indicating that something in the search has changed, so the UI should update
-   */
-  get changed(): ISignal<this, void> {
-    return this._changed;
-  }
-
-  /**
-   * The current index of the selected match.
-   */
-  get currentMatchIndex(): number | null {
-    if (!this._currentMatch) {
-      return null;
-    }
-    return this._currentMatch.index;
-  }
-
-  /**
-   * Set to true if the widget under search is read-only, false
-   * if it is editable.  Will be used to determine whether to show
-   * the replace option.
-   */
-  readonly isReadOnly = false;
-
-  readonly hasOutputs = true;
-
-  private _updatedCurrentProvider(reverse: boolean) {
-    if (
-      this._currentProvider &&
-      this._currentProvider.cell === this._searchTarget!.content.activeCell
-    ) {
-      return this._currentProvider;
-    }
-    let provider;
-    if (!this._currentProvider) {
-      const find = reverse ? ArrayExt.findLastValue : ArrayExt.findFirstValue;
-      provider = find(
-        this._searchProviders,
-        provider => this._searchTarget!.content.activeCell === provider.cell
-      );
-    } else {
-      const currentProviderIndex = ArrayExt.firstIndexOf(
-        this._searchProviders,
-        this._currentProvider
-      );
-      const nextProviderIndex =
-        ((reverse ? currentProviderIndex - 1 : currentProviderIndex + 1) +
-          this._searchProviders.length) %
-        this._searchProviders.length;
-      provider = this._searchProviders[nextProviderIndex];
-    }
-    this._currentProvider = provider;
-    return provider;
-  }
-
-  private async _stepNext(
-    currentSearchPair: ICellSearchPair,
-    reverse = false,
-    steps = 0
-  ): Promise<ISearchMatch | undefined> {
-    const { provider } = currentSearchPair;
-
-    // highlightNext/Previous will not be able to search rendered MarkdownCells or
-    // hidden code cells, but that is okay here because in startQuery, we unrendered
-    // all cells with matches and unhide all cells
-    const match = reverse
-      ? await provider.highlightPrevious()
-      : await provider.highlightNext();
-    // If there was no match in this cell, try the next cell
-    if (!match) {
-      const providerIndex = this._searchProviders.indexOf(currentSearchPair);
-      const numProviders = this._searchProviders.length;
-      // We have looped around the whole notebook and have searched the original
-      // cell once more and found no matches.  Do not proceed with incrementing the
-      // active cell index so that the active cell doesn't change
-      if (steps === numProviders) {
-        return undefined;
-      }
-      const nextIndex =
-        ((reverse ? providerIndex - 1 : providerIndex + 1) + numProviders) %
-        numProviders;
-      const nextSearchPair = this._searchProviders[nextIndex];
-      if (nextSearchPair.provider instanceof CodeMirrorSearchProvider) {
-        const editor = nextSearchPair.provider.editor;
-        // move the cursor of the next cell to the start/end of the cell so it can
-        // search the whole thing (but don't scroll because we haven't found anything yet)
-        const newPosCM = reverse
-          ? CodeMirror.Pos(editor.lastLine())
-          : CodeMirror.Pos(editor.firstLine(), 0);
-        const newPos = {
-          line: newPosCM.line,
-          column: newPosCM.ch
-        };
-        editor.setCursorPosition(newPos, { scroll: false });
-      }
-      this._currentProvider = nextSearchPair;
-      return this._stepNext(nextSearchPair, reverse, steps + 1);
-    }
-
-    const notebook = this._searchTarget!.content;
-    notebook.activeCellIndex = notebook.widgets.indexOf(currentSearchPair.cell);
-    return match;
-  }
-
-  private _getMatchesFromCells(): ISearchMatch[][] {
-    let indexTotal = 0;
-    const result: ISearchMatch[][] = [];
-    this._searchProviders.forEach(({ provider }) => {
-      const cellMatches = provider.matches;
-      cellMatches.forEach(match => {
-        match.index = match.index + indexTotal;
-      });
-      indexTotal += cellMatches.length;
-      result.push(cellMatches);
-    });
-    return result;
-  }
-
-  private _onSearchProviderChanged() {
-    this._changed.emit(undefined);
-  }
-
-  private _currentMatchIsSelected(cm: CodeMirrorEditor): boolean {
-    if (!this._currentMatch) {
-      return false;
-    }
-    const currentSelection = cm.getSelection();
-    const currentSelectionLength =
-      currentSelection.end.column - currentSelection.start.column;
-    const selectionIsOneLine =
-      currentSelection.start.line === currentSelection.end.line;
-    return (
-      this._currentMatch.line === currentSelection.start.line &&
-      this._currentMatch.column === currentSelection.start.column &&
-      this._currentMatch.text.length === currentSelectionLength &&
-      selectionIsOneLine
-    );
-  }
-
-  private _searchTarget: NotebookPanel | undefined | null;
-  private _filters: INotebookFilters;
-  private _searchProviders: ICellSearchPair[] = [];
-  private _currentProvider: ICellSearchPair | null | undefined;
-  private _currentMatch: ISearchMatch | undefined | null;
-  private _unRenderedMarkdownCells: MarkdownCell[] = [];
-  private _cellsWithMatches: Cell[] = [];
-  private _changed = new Signal<this, void>(this);
-}
diff --git a/packages/documentsearch/src/providers/textprovider.ts b/packages/documentsearch/src/providers/textprovider.ts
new file mode 100644
index 000000000000..2d984853cda8
--- /dev/null
+++ b/packages/documentsearch/src/providers/textprovider.ts
@@ -0,0 +1,48 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISearchMatch } from '../tokens';
+
+/**
+ * Search provider for text/plain
+ */
+export const TextSearchEngine = {
+  /**
+   * Search for regular expression matches in a string.
+   *
+   * @param query Query regular expression
+   * @param data String to look into
+   * @returns List of matches
+   */
+  search(query: RegExp, data: string): Promise<ISearchMatch[]> {
+    // If data is not a string, try to JSON serialize the data.
+    if (typeof data !== 'string') {
+      try {
+        data = JSON.stringify(data);
+      } catch (reason) {
+        console.warn(
+          'Unable to search with TextSearchEngine non-JSON serializable object.',
+          reason,
+          data
+        );
+        return Promise.resolve([]);
+      }
+    }
+
+    if (!query.global) {
+      query = new RegExp(query.source, query.flags + 'g');
+    }
+
+    const matches = new Array<ISearchMatch>();
+
+    let match: RegExpExecArray | null = null;
+    while ((match = query.exec(data)) !== null) {
+      matches.push({
+        text: match[0],
+        position: match.index
+      });
+    }
+
+    return Promise.resolve(matches);
+  }
+};
diff --git a/packages/documentsearch/src/searchinstance.ts b/packages/documentsearch/src/searchinstance.ts
deleted file mode 100644
index 5d44d80ae063..000000000000
--- a/packages/documentsearch/src/searchinstance.ts
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { MainAreaWidget } from '@jupyterlab/apputils';
-import { NotebookPanel } from '@jupyterlab/notebook';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { IDisposable } from '@lumino/disposable';
-import { ISignal, Signal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
-import { IDisplayState, IFiltersType, ISearchProvider } from './interfaces';
-import { createSearchOverlay } from './searchoverlay';
-
-/**
- * Represents a search on a single widget.
- */
-export class SearchInstance implements IDisposable {
-  constructor(
-    widget: Widget,
-    searchProvider: ISearchProvider,
-    translator?: ITranslator,
-    searchDebounceTime = 500
-  ) {
-    this.translator = translator || nullTranslator;
-    this._widget = widget;
-    this._activeProvider = searchProvider;
-
-    const initialQuery = this._activeProvider.getInitialQuery(this._widget);
-    this._displayState.searchText = initialQuery || '';
-
-    this._searchWidget = createSearchOverlay({
-      widgetChanged: this._displayUpdateSignal,
-      overlayState: this._displayState,
-      onCaseSensitiveToggled: this._onCaseSensitiveToggled.bind(this),
-      onRegexToggled: this._onRegexToggled.bind(this),
-      onHighlightNext: this._highlightNext.bind(this),
-      onHighlightPrevious: this._highlightPrevious.bind(this),
-      onStartQuery: this._startQuery.bind(this),
-      onReplaceCurrent: this._replaceCurrent.bind(this),
-      onReplaceAll: this._replaceAll.bind(this),
-      onEndSearch: this.dispose.bind(this),
-      isReadOnly: this._activeProvider.isReadOnly,
-      hasOutputs: this._activeProvider.hasOutputs || false,
-      searchDebounceTime: searchDebounceTime,
-      translator: this.translator
-    });
-
-    this._widget.disposed.connect(() => {
-      this.dispose();
-    });
-
-    this._searchWidget.disposed.connect(() => {
-      this._widget.activate();
-      this.dispose();
-    });
-
-    // TODO: this does not update if the toolbar changes height.
-    if (this._widget instanceof MainAreaWidget) {
-      // Offset the position of the search widget to not cover the toolbar.
-      this._searchWidget.node.style.top = `${this._widget.toolbar.node.clientHeight}px`;
-    }
-
-    if (this._widget instanceof NotebookPanel) {
-      this._widget.content.activeCellChanged.connect(() => {
-        if (
-          this._displayState.query &&
-          this._displayState.filters.selectedCells
-        ) {
-          void this._startQuery(
-            this._displayState.query,
-            this._displayState.filters
-          );
-        }
-      });
-    }
-
-    this._displaySearchWidget();
-  }
-
-  /**
-   * The search widget.
-   */
-  get searchWidget() {
-    return this._searchWidget;
-  }
-
-  /**
-   * The search provider.
-   */
-  get provider() {
-    return this._activeProvider;
-  }
-
-  /**
-   * Focus the search widget input.
-   */
-  focusInput(): void {
-    this._displayState.forceFocus = true;
-    this._displayState.searchInputFocused = true;
-
-    // Trigger a rerender without resetting the forceFocus.
-    this._displayUpdateSignal.emit(this._displayState);
-    this._displayState.forceFocus = false;
-  }
-
-  /**
-   * Set the search text
-   *
-   * It does not trigger a view update.
-   */
-  setSearchText(search: string): void {
-    this._displayState.searchText = search;
-  }
-
-  /**
-   * Set the replace text
-   *
-   * It does not trigger a view update.
-   */
-  setReplaceText(replace: string): void {
-    this._displayState.replaceText = replace;
-  }
-
-  /**
-   * If there is a replace box, show it.
-   */
-  showReplace(): void {
-    this._displayState.replaceEntryShown = true;
-  }
-  /**
-   * Updates the match index and total display in the search widget.
-   */
-  updateIndices(): void {
-    this._displayState.totalMatches = this._activeProvider.matches.length;
-    this._displayState.currentIndex = this._activeProvider.currentMatchIndex;
-    this._updateDisplay();
-  }
-
-  private _updateDisplay() {
-    // Reset the focus attribute to make sure we don't steal focus.
-    this._displayState.forceFocus = false;
-
-    // Trigger a rerender
-    this._displayUpdateSignal.emit(this._displayState);
-  }
-
-  private async _startQuery(query: RegExp, filters: IFiltersType) {
-    // save the last query (or set it to the current query if this is the first)
-    if (this._activeProvider && this._displayState.query) {
-      await this._activeProvider.endQuery();
-    }
-    this._displayState.query = query;
-    this._displayState.filters = filters;
-    await this._activeProvider.startQuery(query, this._widget, filters);
-    this.updateIndices();
-
-    // this signal should get injected when the widget is
-    // created and hooked up to react!
-    this._activeProvider.changed.connect(this.updateIndices, this);
-  }
-
-  private async _replaceCurrent(newText: string) {
-    if (this._activeProvider && this._displayState.query) {
-      await this._activeProvider.replaceCurrentMatch(newText);
-      this.updateIndices();
-    }
-  }
-
-  private async _replaceAll(newText: string) {
-    if (this._activeProvider && this._displayState.query) {
-      await this._activeProvider.replaceAllMatches(newText);
-      this.updateIndices();
-    }
-  }
-
-  /**
-   * Dispose of the resources held by the search instance.
-   */
-  dispose() {
-    if (this.isDisposed) {
-      return;
-    }
-    this._isDisposed = true;
-
-    // If a query hasn't been executed yet, no need to call endSearch
-    if (this._displayState.query) {
-      void this._activeProvider.endSearch();
-    }
-
-    this._searchWidget.dispose();
-    this._disposed.emit(undefined);
-    Signal.clearData(this);
-  }
-
-  /**
-   * Test if the object has been disposed.
-   */
-  get isDisposed(): boolean {
-    return this._isDisposed;
-  }
-
-  /**
-   * A signal emitted when the object is disposed.
-   */
-  get disposed(): ISignal<this, void> {
-    return this._disposed;
-  }
-
-  /**
-   * Display search widget.
-   */
-  _displaySearchWidget() {
-    if (!this._searchWidget.isAttached) {
-      Widget.attach(this._searchWidget, this._widget.node);
-    }
-  }
-
-  private async _highlightNext() {
-    if (!this._displayState.query) {
-      return;
-    }
-    await this._activeProvider.highlightNext();
-    this.updateIndices();
-  }
-
-  private async _highlightPrevious() {
-    if (!this._displayState.query) {
-      return;
-    }
-    await this._activeProvider.highlightPrevious();
-    this.updateIndices();
-  }
-
-  private _onCaseSensitiveToggled() {
-    this._displayState.caseSensitive = !this._displayState.caseSensitive;
-    this._updateDisplay();
-  }
-
-  private _onRegexToggled() {
-    this._displayState.useRegex = !this._displayState.useRegex;
-    this._updateDisplay();
-  }
-
-  private _widget: Widget;
-  private _displayState: IDisplayState = {
-    currentIndex: 0,
-    totalMatches: 0,
-    caseSensitive: false,
-    useRegex: false,
-    searchText: '',
-    query: null,
-    errorMessage: '',
-    searchInputFocused: true,
-    replaceInputFocused: false,
-    forceFocus: true,
-    replaceText: '',
-    replaceEntryShown: false,
-    filters: { output: true, selectedCells: false },
-    filtersOpen: false
-  };
-
-  protected translator: ITranslator;
-  private _displayUpdateSignal = new Signal<this, IDisplayState>(this);
-  private _activeProvider: ISearchProvider;
-  private _searchWidget: Widget;
-  private _isDisposed = false;
-  private _disposed = new Signal<this, void>(this);
-}
diff --git a/packages/documentsearch/src/searchmodel.ts b/packages/documentsearch/src/searchmodel.ts
new file mode 100644
index 000000000000..905cd9aecef7
--- /dev/null
+++ b/packages/documentsearch/src/searchmodel.ts
@@ -0,0 +1,403 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { VDomModel } from '@jupyterlab/ui-components';
+import { IObservableDisposable } from '@lumino/disposable';
+import { Debouncer } from '@lumino/polling';
+import { ISignal, Signal } from '@lumino/signaling';
+import {
+  IFilter,
+  IFilters,
+  IReplaceOptionsSupport,
+  ISearchProvider
+} from './tokens';
+
+/**
+ * Search in a document model.
+ */
+export class SearchDocumentModel
+  extends VDomModel
+  implements IObservableDisposable
+{
+  /**
+   * Search document model
+   * @param searchProvider Provider for the current document
+   * @param searchDebounceTime Debounce search time
+   */
+  constructor(
+    protected searchProvider: ISearchProvider,
+    searchDebounceTime: number
+  ) {
+    super();
+
+    this._filters = {};
+    if (this.searchProvider.getFilters) {
+      const filters = this.searchProvider.getFilters();
+      for (const filter in filters) {
+        this._filters[filter] = filters[filter].default;
+      }
+    }
+
+    searchProvider.stateChanged.connect(this.refresh, this);
+
+    this._searchDebouncer = new Debouncer(() => {
+      this._updateSearch().catch(reason => {
+        console.error('Failed to update search on document.', reason);
+      });
+    }, searchDebounceTime);
+  }
+
+  /**
+   * Whether the search is case sensitive or not.
+   */
+  get caseSensitive(): boolean {
+    return this._caseSensitive;
+  }
+  set caseSensitive(v: boolean) {
+    if (this._caseSensitive !== v) {
+      this._caseSensitive = v;
+      this.stateChanged.emit();
+      this.refresh();
+    }
+  }
+
+  /**
+   * Current highlighted match index.
+   */
+  get currentIndex(): number | null {
+    return this.searchProvider.currentMatchIndex;
+  }
+
+  /**
+   * A signal emitted when the object is disposed.
+   */
+  get disposed(): ISignal<this, void> {
+    return this._disposed;
+  }
+
+  /**
+   * Filter values.
+   */
+  get filters(): IFilters {
+    return this._filters;
+  }
+
+  /**
+   * Filter definitions for the current provider.
+   */
+  get filtersDefinition(): { [n: string]: IFilter } {
+    return this.searchProvider.getFilters?.() ?? {};
+  }
+
+  /**
+   * Filter definitions changed.
+   */
+  get filtersDefinitionChanged(): ISignal<ISearchProvider, void> | null {
+    return this.searchProvider.filtersChanged || null;
+  }
+
+  /**
+   * The initial query string.
+   */
+  get initialQuery(): string {
+    return this._initialQuery;
+  }
+  set initialQuery(v: string) {
+    if (v) {
+      // Usually the value comes from user selection (set by search provider).
+      this._initialQuery = v;
+    } else {
+      // If user selection is empty, we fall back to most recent value (if any).
+      this._initialQuery = this._searchExpression;
+    }
+  }
+
+  /**
+   * Initial query as suggested by provider.
+   *
+   * A common choice is the text currently selected by the user.
+   */
+  get suggestedInitialQuery(): string {
+    return this.searchProvider.getInitialQuery();
+  }
+
+  /**
+   * Whether the document is read-only or not.
+   */
+  get isReadOnly(): boolean {
+    return this.searchProvider.isReadOnly;
+  }
+
+  /**
+   * Replace options support.
+   */
+  get replaceOptionsSupport(): IReplaceOptionsSupport | undefined {
+    return this.searchProvider.replaceOptionsSupport;
+  }
+
+  /**
+   * Parsing regular expression error message.
+   */
+  get parsingError(): string {
+    return this._parsingError;
+  }
+
+  /**
+   * Whether to preserve case when replacing.
+   */
+  get preserveCase(): boolean {
+    return this._preserveCase;
+  }
+  set preserveCase(v: boolean) {
+    if (this._preserveCase !== v) {
+      this._preserveCase = v;
+      this.stateChanged.emit();
+      this.refresh();
+    }
+  }
+
+  /**
+   * Replacement expression
+   */
+  get replaceText(): string {
+    return this._replaceText;
+  }
+  set replaceText(v: string) {
+    if (this._replaceText !== v) {
+      this._replaceText = v;
+      this.stateChanged.emit();
+    }
+  }
+
+  /**
+   * Search expression
+   */
+  get searchExpression(): string {
+    return this._searchExpression;
+  }
+  set searchExpression(v: string) {
+    if (this._searchExpression !== v) {
+      this._searchExpression = v;
+      this.stateChanged.emit();
+      this.refresh();
+    }
+  }
+
+  /**
+   * Total number of matches.
+   */
+  get totalMatches(): number | null {
+    return this.searchProvider.matchesCount;
+  }
+
+  /**
+   * Whether to use regular expression or not.
+   */
+  get useRegex(): boolean {
+    return this._useRegex;
+  }
+  set useRegex(v: boolean) {
+    if (this._useRegex !== v) {
+      this._useRegex = v;
+      this.stateChanged.emit();
+      this.refresh();
+    }
+  }
+
+  /**
+   * Whether to match whole words or not.
+   */
+  get wholeWords(): boolean {
+    return this._wholeWords;
+  }
+  set wholeWords(v: boolean) {
+    if (this._wholeWords !== v) {
+      this._wholeWords = v;
+      this.stateChanged.emit();
+      this.refresh();
+    }
+  }
+
+  /**
+   * Dispose the model.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    if (this._searchExpression) {
+      this.endQuery().catch(reason => {
+        console.error(
+          `Failed to end query '${this._searchExpression}.`,
+          reason
+        );
+      });
+    }
+
+    this.searchProvider.stateChanged.disconnect(this.refresh, this);
+
+    this._searchDebouncer.dispose();
+    super.dispose();
+  }
+
+  /**
+   * End the query.
+   */
+  async endQuery(): Promise<void> {
+    await this.searchProvider.endQuery();
+    this.stateChanged.emit();
+  }
+
+  /**
+   * Highlight the next match.
+   */
+  async highlightNext(): Promise<void> {
+    await this.searchProvider.highlightNext();
+    // Emit state change as the index needs to be updated
+    this.stateChanged.emit();
+  }
+
+  /**
+   * Highlight the previous match
+   */
+  async highlightPrevious(): Promise<void> {
+    await this.searchProvider.highlightPrevious();
+    // Emit state change as the index needs to be updated
+    this.stateChanged.emit();
+  }
+
+  /**
+   * Refresh search
+   */
+  refresh(): void {
+    this._searchDebouncer.invoke().catch(reason => {
+      console.error('Failed to invoke search document debouncer.', reason);
+    });
+  }
+
+  /**
+   * Replace all matches.
+   */
+  async replaceAllMatches(): Promise<void> {
+    await this.searchProvider.replaceAllMatches(this._replaceText, {
+      preserveCase: this.preserveCase,
+      regularExpression: this.useRegex
+    });
+    // Emit state change as the index needs to be updated
+    this.stateChanged.emit();
+  }
+
+  /**
+   * Replace the current match.
+   */
+  async replaceCurrentMatch(): Promise<void> {
+    await this.searchProvider.replaceCurrentMatch(this._replaceText, true, {
+      preserveCase: this.preserveCase,
+      regularExpression: this.useRegex
+    });
+    // Emit state change as the index needs to be updated
+    this.stateChanged.emit();
+  }
+
+  /**
+   * Set the value of a given filter.
+   *
+   * @param name Filter name
+   * @param v Filter value
+   */
+  async setFilter(name: string, v: boolean): Promise<void> {
+    if (this._filters[name] !== v) {
+      if (this.searchProvider.validateFilter) {
+        this._filters[name] = await this.searchProvider.validateFilter(name, v);
+        // If the value was changed
+        if (this._filters[name] === v) {
+          this.stateChanged.emit();
+          this.refresh();
+        }
+      } else {
+        this._filters[name] = v;
+        this.stateChanged.emit();
+        this.refresh();
+      }
+    }
+  }
+
+  private async _updateSearch(): Promise<void> {
+    if (this._parsingError) {
+      this._parsingError = '';
+      this.stateChanged.emit();
+    }
+    try {
+      const query = this.searchExpression
+        ? Private.parseQuery(
+            this.searchExpression,
+            this.caseSensitive,
+            this.useRegex,
+            this.wholeWords
+          )
+        : null;
+      if (query) {
+        await this.searchProvider.startQuery(query, this._filters);
+        // Emit state change as the index needs to be updated
+        this.stateChanged.emit();
+      }
+    } catch (reason) {
+      this._parsingError = reason.toString();
+      this.stateChanged.emit();
+      console.error(
+        `Failed to parse expression ${this.searchExpression}`,
+        reason
+      );
+    }
+  }
+
+  private _caseSensitive = false;
+  private _disposed = new Signal<this, void>(this);
+  private _parsingError = '';
+  private _preserveCase = false;
+  private _initialQuery = '';
+  private _filters: IFilters = {};
+  private _replaceText: string = '';
+  private _searchDebouncer: Debouncer;
+  private _searchExpression = '';
+  private _useRegex = false;
+  private _wholeWords = false;
+}
+
+namespace Private {
+  /**
+   * Build the regular expression to use for searching.
+   *
+   * @param queryString Query string
+   * @param caseSensitive Whether the search is case sensitive or not
+   * @param regex Whether the expression is a regular expression
+   * @returns The regular expression to use
+   */
+  export function parseQuery(
+    queryString: string,
+    caseSensitive: boolean,
+    regex: boolean,
+    wholeWords: boolean
+  ): RegExp | null {
+    const flag = caseSensitive ? 'gm' : 'gim';
+    // escape regex characters in query if its a string search
+    let queryText = regex
+      ? queryString
+      : queryString.replace(/[-[\]/{}()*+?.\\^$|]/g, '\\$&');
+
+    if (wholeWords) {
+      queryText = '\\b' + queryText + '\\b';
+    }
+    const ret = new RegExp(queryText, flag);
+
+    // If the empty string is hit, the search logic will freeze the browser tab
+    //  Trying /^/ or /$/ on the codemirror search demo, does not find anything.
+    //  So this is a limitation of the editor.
+    if (ret.test('')) {
+      return null;
+    }
+
+    return ret;
+  }
+}
diff --git a/packages/documentsearch/src/searchoverlay.tsx b/packages/documentsearch/src/searchoverlay.tsx
deleted file mode 100644
index b914c34f46e2..000000000000
--- a/packages/documentsearch/src/searchoverlay.tsx
+++ /dev/null
@@ -1,734 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ReactWidget, UseSignal } from '@jupyterlab/apputils';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import {
-  caretDownEmptyThinIcon,
-  caretDownIcon,
-  caretRightIcon,
-  caretUpEmptyThinIcon,
-  caseSensitiveIcon,
-  classes,
-  closeIcon,
-  ellipsesIcon,
-  regexIcon
-} from '@jupyterlab/ui-components';
-import { Debouncer } from '@lumino/polling';
-import { Signal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
-import * as React from 'react';
-import { IDisplayState } from './interfaces';
-import { SearchInstance } from './searchinstance';
-
-const OVERLAY_CLASS = 'jp-DocumentSearch-overlay';
-const OVERLAY_ROW_CLASS = 'jp-DocumentSearch-overlay-row';
-const INPUT_CLASS = 'jp-DocumentSearch-input';
-const INPUT_WRAPPER_CLASS = 'jp-DocumentSearch-input-wrapper';
-const INPUT_BUTTON_CLASS_OFF = 'jp-DocumentSearch-input-button-off';
-const INPUT_BUTTON_CLASS_ON = 'jp-DocumentSearch-input-button-on';
-const INDEX_COUNTER_CLASS = 'jp-DocumentSearch-index-counter';
-const UP_DOWN_BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-up-down-wrapper';
-const UP_DOWN_BUTTON_CLASS = 'jp-DocumentSearch-up-down-button';
-const ELLIPSES_BUTTON_CLASS = 'jp-DocumentSearch-ellipses-button';
-const ELLIPSES_BUTTON_ENABLED_CLASS =
-  'jp-DocumentSearch-ellipses-button-enabled';
-const REGEX_ERROR_CLASS = 'jp-DocumentSearch-regex-error';
-const SEARCH_OPTIONS_CLASS = 'jp-DocumentSearch-search-options';
-const SEARCH_OPTIONS_DISABLED_CLASS =
-  'jp-DocumentSearch-search-options-disabled';
-const SEARCH_DOCUMENT_LOADING = 'jp-DocumentSearch-document-loading';
-const REPLACE_ENTRY_CLASS = 'jp-DocumentSearch-replace-entry';
-const REPLACE_BUTTON_CLASS = 'jp-DocumentSearch-replace-button';
-const REPLACE_BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-replace-button-wrapper';
-const REPLACE_WRAPPER_CLASS = 'jp-DocumentSearch-replace-wrapper-class';
-const REPLACE_TOGGLE_CLASS = 'jp-DocumentSearch-replace-toggle';
-const FOCUSED_INPUT = 'jp-DocumentSearch-focused-input';
-const TOGGLE_WRAPPER = 'jp-DocumentSearch-toggle-wrapper';
-const TOGGLE_PLACEHOLDER = 'jp-DocumentSearch-toggle-placeholder';
-const BUTTON_CONTENT_CLASS = 'jp-DocumentSearch-button-content';
-const BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-button-wrapper';
-const SPACER_CLASS = 'jp-DocumentSearch-spacer';
-
-interface ISearchEntryProps {
-  onCaseSensitiveToggled: Function;
-  onRegexToggled: Function;
-  onKeydown: Function;
-  onChange: Function;
-  onInputFocus: Function;
-  onInputBlur: Function;
-  inputFocused: boolean;
-  caseSensitive: boolean;
-  useRegex: boolean;
-  searchText: string;
-  forceFocus: boolean;
-  translator?: ITranslator;
-}
-
-interface IReplaceEntryProps {
-  onReplaceCurrent: Function;
-  onReplaceAll: Function;
-  onReplaceKeydown: Function;
-  onChange: Function;
-  replaceText: string;
-  translator?: ITranslator;
-}
-
-class SearchEntry extends React.Component<ISearchEntryProps> {
-  constructor(props: ISearchEntryProps) {
-    super(props);
-    this.translator = props.translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
-    this.searchInputRef = React.createRef();
-  }
-
-  /**
-   * Focus the input.
-   */
-  focusInput() {
-    // Select (and focus) any text already present.
-    // This makes typing in the box starts a new query (the common case),
-    // while arrow keys can be used to move cursor in preparation for
-    // modifying previous query.
-    this.searchInputRef.current?.select();
-  }
-
-  componentDidUpdate() {
-    if (this.props.forceFocus) {
-      this.focusInput();
-    }
-  }
-
-  render() {
-    const caseButtonToggleClass = classes(
-      this.props.caseSensitive ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
-      BUTTON_CONTENT_CLASS
-    );
-    const regexButtonToggleClass = classes(
-      this.props.useRegex ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
-      BUTTON_CONTENT_CLASS
-    );
-
-    const wrapperClass = `${INPUT_WRAPPER_CLASS} ${
-      this.props.inputFocused ? FOCUSED_INPUT : ''
-    }`;
-
-    return (
-      <div className={wrapperClass}>
-        <input
-          placeholder={
-            this.props.searchText ? undefined : this._trans.__('Find')
-          }
-          className={INPUT_CLASS}
-          value={this.props.searchText}
-          onChange={e => this.props.onChange(e)}
-          onKeyDown={e => this.props.onKeydown(e)}
-          tabIndex={0}
-          onFocus={e => this.props.onInputFocus()}
-          onBlur={e => this.props.onInputBlur()}
-          ref={this.searchInputRef}
-        />
-        <button
-          className={BUTTON_WRAPPER_CLASS}
-          onClick={() => this.props.onCaseSensitiveToggled()}
-          tabIndex={0}
-        >
-          <caseSensitiveIcon.react
-            className={caseButtonToggleClass}
-            tag="span"
-          />
-        </button>
-        <button
-          className={BUTTON_WRAPPER_CLASS}
-          onClick={() => this.props.onRegexToggled()}
-          tabIndex={0}
-        >
-          <regexIcon.react className={regexButtonToggleClass} tag="span" />
-        </button>
-      </div>
-    );
-  }
-
-  protected translator: ITranslator;
-  private _trans: TranslationBundle;
-  private searchInputRef: React.RefObject<HTMLInputElement>;
-}
-
-class ReplaceEntry extends React.Component<IReplaceEntryProps> {
-  constructor(props: any) {
-    super(props);
-    this._trans = (props.translator || nullTranslator).load('jupyterlab');
-    this.replaceInputRef = React.createRef();
-  }
-
-  render() {
-    return (
-      <div className={REPLACE_WRAPPER_CLASS}>
-        <input
-          placeholder={
-            this.props.replaceText ? undefined : this._trans.__('Replace')
-          }
-          className={REPLACE_ENTRY_CLASS}
-          value={this.props.replaceText}
-          onKeyDown={e => this.props.onReplaceKeydown(e)}
-          onChange={e => this.props.onChange(e)}
-          tabIndex={0}
-          ref={this.replaceInputRef}
-        />
-        <button
-          className={REPLACE_BUTTON_WRAPPER_CLASS}
-          onClick={() => this.props.onReplaceCurrent()}
-          tabIndex={0}
-        >
-          <span
-            className={`${REPLACE_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`}
-            tabIndex={0}
-          >
-            {this._trans.__('Replace')}
-          </span>
-        </button>
-        <button
-          className={REPLACE_BUTTON_WRAPPER_CLASS}
-          tabIndex={0}
-          onClick={() => this.props.onReplaceAll()}
-        >
-          <span
-            className={`${REPLACE_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`}
-            tabIndex={-1}
-          >
-            {this._trans.__('Replace All')}
-          </span>
-        </button>
-      </div>
-    );
-  }
-
-  private replaceInputRef: React.RefObject<HTMLInputElement>;
-  private _trans: TranslationBundle;
-}
-
-interface IUpDownProps {
-  onHighlightPrevious: Function;
-  onHighlightNext: Function;
-}
-
-function UpDownButtons(props: IUpDownProps) {
-  return (
-    <div className={UP_DOWN_BUTTON_WRAPPER_CLASS}>
-      <button
-        className={BUTTON_WRAPPER_CLASS}
-        onClick={() => props.onHighlightPrevious()}
-        tabIndex={0}
-      >
-        <caretUpEmptyThinIcon.react
-          className={classes(UP_DOWN_BUTTON_CLASS, BUTTON_CONTENT_CLASS)}
-          tag="span"
-        />
-      </button>
-      <button
-        className={BUTTON_WRAPPER_CLASS}
-        onClick={() => props.onHighlightNext()}
-        tabIndex={0}
-      >
-        <caretDownEmptyThinIcon.react
-          className={classes(UP_DOWN_BUTTON_CLASS, BUTTON_CONTENT_CLASS)}
-          tag="span"
-        />
-      </button>
-    </div>
-  );
-}
-
-interface ISearchIndexProps {
-  currentIndex: number | null;
-  totalMatches: number;
-}
-
-function SearchIndices(props: ISearchIndexProps) {
-  return (
-    <div className={INDEX_COUNTER_CLASS}>
-      {props.totalMatches === 0
-        ? '-/-'
-        : `${props.currentIndex === null ? '-' : props.currentIndex + 1}/${
-            props.totalMatches
-          }`}
-    </div>
-  );
-}
-
-interface IFilterToggleProps {
-  enabled: boolean;
-  toggleEnabled: () => void;
-}
-
-interface IFilterToggleState {}
-
-class FilterToggle extends React.Component<
-  IFilterToggleProps,
-  IFilterToggleState
-> {
-  render() {
-    let className = `${ELLIPSES_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`;
-    if (this.props.enabled) {
-      className = `${className} ${ELLIPSES_BUTTON_ENABLED_CLASS}`;
-    }
-    return (
-      <button
-        className={BUTTON_WRAPPER_CLASS}
-        onClick={() => this.props.toggleEnabled()}
-        tabIndex={0}
-      >
-        <ellipsesIcon.react
-          className={className}
-          tag="span"
-          height="20px"
-          width="20px"
-        />
-      </button>
-    );
-  }
-}
-
-interface IFilterSelectionProps {
-  searchOutput: boolean;
-  searchSelectedCells: boolean;
-  canToggleOutput: boolean;
-  canToggleSelectedCells: boolean;
-  toggleOutput: () => void;
-  toggleSelectedCells: () => void;
-  trans: TranslationBundle;
-}
-
-interface IFilterSelectionState {}
-
-class FilterSelection extends React.Component<
-  IFilterSelectionProps,
-  IFilterSelectionState
-> {
-  render() {
-    return (
-      <label className={SEARCH_OPTIONS_CLASS}>
-        <div>
-          <span
-            className={
-              this.props.canToggleOutput ? '' : SEARCH_OPTIONS_DISABLED_CLASS
-            }
-          >
-            {this.props.trans.__('Search Cell Outputs')}
-          </span>
-          <input
-            type="checkbox"
-            disabled={!this.props.canToggleOutput}
-            checked={this.props.searchOutput}
-            onChange={this.props.toggleOutput}
-          />
-        </div>
-        <div>
-          <span
-            className={
-              this.props.canToggleSelectedCells
-                ? ''
-                : SEARCH_OPTIONS_DISABLED_CLASS
-            }
-          >
-            {this.props.trans.__('Search Selected Cell(s)')}
-          </span>
-          <input
-            type="checkbox"
-            disabled={!this.props.canToggleSelectedCells}
-            checked={this.props.searchSelectedCells}
-            onChange={this.props.toggleSelectedCells}
-          />
-        </div>
-      </label>
-    );
-  }
-}
-interface ISearchOverlayProps {
-  overlayState: IDisplayState;
-  onCaseSensitiveToggled: Function;
-  onRegexToggled: Function;
-  onHighlightNext: Function;
-  onHighlightPrevious: Function;
-  onStartQuery: Function;
-  onEndSearch: Function;
-  onReplaceCurrent: Function;
-  onReplaceAll: Function;
-  isReadOnly: boolean;
-  hasOutputs: boolean;
-  searchDebounceTime?: number;
-  translator?: ITranslator;
-}
-
-class SearchOverlay extends React.Component<
-  ISearchOverlayProps,
-  IDisplayState
-> {
-  constructor(props: ISearchOverlayProps) {
-    super(props);
-    this.translator = props.translator || nullTranslator;
-    this.state = props.overlayState;
-    this.replaceEntryRef = React.createRef();
-    this._debouncedStartSearch = new Debouncer(() => {
-      this._executeSearch(true, this.state.searchText);
-    }, props.searchDebounceTime ?? 500);
-    this._toggleSearchOutput = this._toggleSearchOutput.bind(this);
-    this._toggleSearchSelectedCells = this._toggleSearchSelectedCells.bind(
-      this
-    );
-  }
-
-  componentDidMount() {
-    if (this.state.searchText) {
-      this._executeSearch(true, this.state.searchText);
-    }
-  }
-
-  private _onSearchChange(event: React.ChangeEvent) {
-    const searchText = (event.target as HTMLInputElement).value;
-    this.setState({ searchText: searchText });
-    void this._debouncedStartSearch.invoke();
-  }
-
-  private _onReplaceChange(event: React.ChangeEvent) {
-    this.setState({ replaceText: (event.target as HTMLInputElement).value });
-  }
-
-  private _onSearchKeydown(event: KeyboardEvent) {
-    if (event.keyCode === 13) {
-      event.preventDefault();
-      event.stopPropagation();
-      this._executeSearch(!event.shiftKey);
-    } else if (event.keyCode === 27) {
-      event.preventDefault();
-      event.stopPropagation();
-      this._onClose();
-    }
-  }
-
-  private _onReplaceKeydown(event: KeyboardEvent) {
-    if (event.keyCode === 13) {
-      event.preventDefault();
-      event.stopPropagation();
-      this.props.onReplaceCurrent(this.state.replaceText);
-    }
-  }
-
-  private _executeSearch(
-    goForward: boolean,
-    searchText?: string,
-    filterChanged = false
-  ) {
-    // execute search!
-    let query;
-    const input = searchText ? searchText : this.state.searchText;
-    try {
-      query = Private.parseQuery(
-        input,
-        this.props.overlayState.caseSensitive,
-        this.props.overlayState.useRegex
-      );
-      this.setState({ errorMessage: '' });
-    } catch (e) {
-      this.setState({ errorMessage: e.message });
-      return;
-    }
-
-    if (
-      Private.regexEqual(this.props.overlayState.query, query) &&
-      !filterChanged
-    ) {
-      if (goForward) {
-        this.props.onHighlightNext();
-      } else {
-        this.props.onHighlightPrevious();
-      }
-      return;
-    }
-
-    this.props.onStartQuery(query, this.state.filters);
-  }
-
-  private _onClose() {
-    // Clean up and close widget.
-    this.props.onEndSearch();
-    this._debouncedStartSearch.dispose();
-  }
-
-  private _onReplaceToggled() {
-    this.setState({
-      replaceEntryShown: !this.state.replaceEntryShown
-    });
-  }
-
-  private _onSearchInputFocus() {
-    if (!this.state.searchInputFocused) {
-      this.setState({ searchInputFocused: true });
-    }
-  }
-
-  private _onSearchInputBlur() {
-    if (this.state.searchInputFocused) {
-      this.setState({ searchInputFocused: false });
-    }
-  }
-  private _toggleSearchOutput() {
-    this.setState(
-      prevState => ({
-        ...prevState,
-        filters: {
-          ...prevState.filters,
-          output: !prevState.filters.output
-        }
-      }),
-      () => this._executeSearch(true, undefined, true)
-    );
-  }
-  private _toggleSearchSelectedCells() {
-    this.setState(
-      prevState => ({
-        ...prevState,
-        filters: {
-          ...prevState.filters,
-          selectedCells: !prevState.filters.selectedCells
-        }
-      }),
-      () => this._executeSearch(true, undefined, true)
-    );
-  }
-
-  private _toggleFiltersOpen() {
-    this.setState(prevState => ({
-      filtersOpen: !prevState.filtersOpen
-    }));
-  }
-
-  render() {
-    const showReplace = !this.props.isReadOnly && this.state.replaceEntryShown;
-    const showFilter = this.props.hasOutputs;
-    const filterToggle = showFilter ? (
-      <FilterToggle
-        enabled={this.state.filtersOpen}
-        toggleEnabled={() => this._toggleFiltersOpen()}
-      />
-    ) : null;
-    const filter = showFilter ? (
-      <FilterSelection
-        key={'filter'}
-        canToggleOutput={!showReplace}
-        canToggleSelectedCells={true}
-        searchOutput={this.state.filters.output}
-        searchSelectedCells={this.state.filters.selectedCells}
-        toggleOutput={this._toggleSearchOutput}
-        toggleSelectedCells={this._toggleSearchSelectedCells}
-        trans={this.translator.load('jupyterlab')}
-      />
-    ) : null;
-    const icon = this.state.replaceEntryShown ? caretDownIcon : caretRightIcon;
-
-    // TODO: Error messages from regex are not currently localizable.
-    return [
-      <div className={OVERLAY_ROW_CLASS} key={0}>
-        {this.props.isReadOnly ? (
-          <div className={TOGGLE_PLACEHOLDER} />
-        ) : (
-          <button
-            className={TOGGLE_WRAPPER}
-            onClick={() => this._onReplaceToggled()}
-            tabIndex={0}
-          >
-            <icon.react
-              className={`${REPLACE_TOGGLE_CLASS} ${BUTTON_CONTENT_CLASS}`}
-              tag="span"
-              elementPosition="center"
-              height="20px"
-              width="20px"
-            />
-          </button>
-        )}
-        <SearchEntry
-          useRegex={this.props.overlayState.useRegex}
-          caseSensitive={this.props.overlayState.caseSensitive}
-          onCaseSensitiveToggled={() => {
-            this.props.onCaseSensitiveToggled();
-            this._executeSearch(true);
-          }}
-          onRegexToggled={() => {
-            this.props.onRegexToggled();
-            this._executeSearch(true);
-          }}
-          onKeydown={(e: KeyboardEvent) => this._onSearchKeydown(e)}
-          onChange={(e: React.ChangeEvent) => this._onSearchChange(e)}
-          onInputFocus={this._onSearchInputFocus.bind(this)}
-          onInputBlur={this._onSearchInputBlur.bind(this)}
-          inputFocused={this.state.searchInputFocused}
-          searchText={this.state.searchText}
-          forceFocus={this.props.overlayState.forceFocus}
-          translator={this.translator}
-        />
-        <SearchIndices
-          currentIndex={this.props.overlayState.currentIndex}
-          totalMatches={this.props.overlayState.totalMatches}
-        />
-        <UpDownButtons
-          onHighlightPrevious={() => this._executeSearch(false)}
-          onHighlightNext={() => this._executeSearch(true)}
-        />
-        {showReplace ? null : filterToggle}
-        <button
-          className={BUTTON_WRAPPER_CLASS}
-          onClick={() => this._onClose()}
-          tabIndex={0}
-        >
-          <closeIcon.react
-            className="jp-icon-hover"
-            elementPosition="center"
-            height="16px"
-            width="16px"
-          />
-        </button>
-      </div>,
-      <div className={OVERLAY_ROW_CLASS} key={1}>
-        {showReplace ? (
-          <>
-            <ReplaceEntry
-              onReplaceKeydown={(e: KeyboardEvent) => this._onReplaceKeydown(e)}
-              onChange={(e: React.ChangeEvent) => this._onReplaceChange(e)}
-              onReplaceCurrent={() =>
-                this.props.onReplaceCurrent(this.state.replaceText)
-              }
-              onReplaceAll={() =>
-                this.props.onReplaceAll(this.state.replaceText)
-              }
-              replaceText={this.state.replaceText}
-              ref={this.replaceEntryRef}
-              translator={this.translator}
-            />
-            <div className={SPACER_CLASS}></div>
-            {filterToggle}
-          </>
-        ) : null}
-      </div>,
-      this.state.filtersOpen ? filter : null,
-      <div
-        className={REGEX_ERROR_CLASS}
-        hidden={
-          !!this.state.errorMessage && this.state.errorMessage.length === 0
-        }
-        key={3}
-      >
-        {this.state.errorMessage}
-      </div>,
-      <div className={SEARCH_DOCUMENT_LOADING} key={4}>
-        This document is still loading. Only loaded content will appear in
-        search results until the entire document loads.
-      </div>
-    ];
-  }
-
-  protected translator: ITranslator;
-  private replaceEntryRef: React.RefObject<ReplaceEntry>;
-
-  private _debouncedStartSearch: Debouncer;
-}
-
-export function createSearchOverlay(
-  options: createSearchOverlay.IOptions
-): Widget {
-  const {
-    widgetChanged,
-    overlayState,
-    onCaseSensitiveToggled,
-    onRegexToggled,
-    onHighlightNext,
-    onHighlightPrevious,
-    onStartQuery,
-    onReplaceCurrent,
-    onReplaceAll,
-    onEndSearch,
-    isReadOnly,
-    hasOutputs,
-    searchDebounceTime,
-    translator
-  } = options;
-  const widget = ReactWidget.create(
-    <UseSignal signal={widgetChanged} initialArgs={overlayState}>
-      {(_, args) => {
-        return (
-          <SearchOverlay
-            onCaseSensitiveToggled={onCaseSensitiveToggled}
-            onRegexToggled={onRegexToggled}
-            onHighlightNext={onHighlightNext}
-            onHighlightPrevious={onHighlightPrevious}
-            onStartQuery={onStartQuery}
-            onEndSearch={onEndSearch}
-            onReplaceCurrent={onReplaceCurrent}
-            onReplaceAll={onReplaceAll}
-            overlayState={args!}
-            isReadOnly={isReadOnly}
-            hasOutputs={hasOutputs}
-            searchDebounceTime={searchDebounceTime}
-            translator={translator}
-          />
-        );
-      }}
-    </UseSignal>
-  );
-  widget.addClass(OVERLAY_CLASS);
-  return widget;
-}
-
-namespace createSearchOverlay {
-  export interface IOptions {
-    widgetChanged: Signal<SearchInstance, IDisplayState>;
-    overlayState: IDisplayState;
-    onCaseSensitiveToggled: Function;
-    onRegexToggled: Function;
-    onHighlightNext: Function;
-    onHighlightPrevious: Function;
-    onStartQuery: Function;
-    onEndSearch: Function;
-    onReplaceCurrent: Function;
-    onReplaceAll: Function;
-    isReadOnly: boolean;
-    hasOutputs: boolean;
-    searchDebounceTime?: number;
-    translator?: ITranslator;
-  }
-}
-
-namespace Private {
-  export function parseQuery(
-    queryString: string,
-    caseSensitive: boolean,
-    regex: boolean
-  ) {
-    const flag = caseSensitive ? 'g' : 'gi';
-    // escape regex characters in query if its a string search
-    const queryText = regex
-      ? queryString
-      : queryString.replace(/[-[\]/{}()*+?.\\^$|]/g, '\\$&');
-    let ret;
-    ret = new RegExp(queryText, flag);
-    if (ret.test('')) {
-      ret = /x^/;
-    }
-    return ret;
-  }
-
-  export function regexEqual(a: RegExp | null, b: RegExp | null) {
-    if (!a || !b) {
-      return false;
-    }
-    return (
-      a.source === b.source &&
-      a.global === b.global &&
-      a.ignoreCase === b.ignoreCase &&
-      a.multiline === b.multiline
-    );
-  }
-}
diff --git a/packages/documentsearch/src/searchprovider.ts b/packages/documentsearch/src/searchprovider.ts
new file mode 100644
index 000000000000..29a9fe434969
--- /dev/null
+++ b/packages/documentsearch/src/searchprovider.ts
@@ -0,0 +1,199 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISignal, Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
+import {
+  IFilter,
+  IFilters,
+  IReplaceOptions,
+  ISearchMatch,
+  ISearchProvider
+} from './tokens';
+
+/**
+ * Abstract class implementing the search provider interface.
+ */
+export abstract class SearchProvider<T extends Widget = Widget>
+  implements ISearchProvider
+{
+  /**
+   * Constructor
+   *
+   * @param widget The widget to search in
+   */
+  constructor(protected widget: T) {
+    this._stateChanged = new Signal<this, void>(this);
+    this._filtersChanged = new Signal<this, void>(this);
+    this._disposed = false;
+  }
+
+  /**
+   * Signal indicating that something in the search has changed, so the UI should update
+   */
+  get stateChanged(): ISignal<this, void> {
+    return this._stateChanged;
+  }
+
+  /**
+   * Signal indicating that filter definition changed.
+   */
+  get filtersChanged(): ISignal<this, void> {
+    return this._filtersChanged;
+  }
+
+  /**
+   * The current index of the selected match.
+   */
+  get currentMatchIndex(): number | null {
+    return null;
+  }
+
+  /**
+   * Whether the search provider is disposed or not.
+   */
+  get isDisposed(): boolean {
+    return this._disposed;
+  }
+
+  /**
+   * The number of matches.
+   */
+  get matchesCount(): number | null {
+    return null;
+  }
+
+  /**
+   * Set to true if the widget under search is read-only, false
+   * if it is editable.  Will be used to determine whether to show
+   * the replace option.
+   */
+  abstract get isReadOnly(): boolean;
+
+  /**
+   * Dispose of the resources held by the search provider.
+   *
+   * #### Notes
+   * If the object's `dispose` method is called more than once, all
+   * calls made after the first will be a no-op.
+   *
+   * #### Undefined Behavior
+   * It is undefined behavior to use any functionality of the object
+   * after it has been disposed unless otherwise explicitly noted.
+   */
+  dispose(): void {
+    if (this._disposed) {
+      return;
+    }
+
+    this._disposed = true;
+    Signal.clearData(this);
+  }
+
+  /**
+   * Get an initial query value if applicable so that it can be entered
+   * into the search box as an initial query
+   *
+   * @returns Initial value used to populate the search box.
+   */
+  getInitialQuery(): string {
+    return '';
+  }
+
+  /**
+   * Get the filters for the given provider.
+   *
+   * @returns The filters.
+   *
+   * ### Notes
+   * TODO For now it only supports boolean filters (represented with checkboxes)
+   */
+  getFilters(): { [key: string]: IFilter } {
+    return {};
+  }
+
+  /**
+   * Start a search using the provided options.
+   *
+   * @param query A RegExp to be use to perform the search
+   * @param filters Filter parameters to pass to provider
+   */
+  abstract startQuery(query: RegExp, filters: IFilters): Promise<void>;
+
+  /**
+   * Stop a search and clear any internal state of the search provider.
+   */
+  abstract endQuery(): Promise<void>;
+
+  /**
+   * Clear currently highlighted match.
+   */
+  abstract clearHighlight(): Promise<void>;
+
+  /**
+   * Highlight the next match.
+   *
+   * @returns The next match if available
+   */
+  abstract highlightNext(): Promise<ISearchMatch | undefined>;
+
+  /**
+   * Highlight the previous match.
+   *
+   * @returns The previous match if available.
+   */
+  abstract highlightPrevious(): Promise<ISearchMatch | undefined>;
+
+  /**
+   * Replace the currently selected match with the provided text
+   *
+   * @param newText The replacement text
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  abstract replaceCurrentMatch(
+    newText: string,
+    loop?: boolean,
+    options?: IReplaceOptions
+  ): Promise<boolean>;
+
+  /**
+   * Replace all matches in the widget with the provided text
+   *
+   * @param newText The replacement text
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  abstract replaceAllMatches(
+    newText: string,
+    options?: IReplaceOptions
+  ): Promise<boolean>;
+
+  /**
+   * Utility for copying the letter case from old to new text.
+   */
+  static preserveCase(oldText: string, newText: string): string {
+    if (oldText.toUpperCase() === oldText) {
+      return newText.toUpperCase();
+    }
+    if (oldText.toLowerCase() === oldText) {
+      return newText.toLowerCase();
+    }
+    if (toSentenceCase(oldText) === oldText) {
+      return toSentenceCase(newText);
+    }
+    return newText;
+  }
+
+  // Needs to be protected so subclass can emit the signal too.
+  protected _stateChanged: Signal<this, void>;
+  protected _filtersChanged: Signal<this, void>;
+  private _disposed: boolean;
+}
+
+/**
+ * Capitalise first letter of provided word.
+ */
+function toSentenceCase([first = '', ...suffix]: string): string {
+  return first.toUpperCase() + '' + suffix.join('').toLowerCase();
+}
diff --git a/packages/documentsearch/src/searchproviderregistry.ts b/packages/documentsearch/src/searchproviderregistry.ts
index 42c5c0dd891e..728d284cae9e 100644
--- a/packages/documentsearch/src/searchproviderregistry.ts
+++ b/packages/documentsearch/src/searchproviderregistry.ts
@@ -1,22 +1,36 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
-import { ISearchProvider, ISearchProviderConstructor } from './interfaces';
-import { ISearchProviderRegistry } from './tokens';
+import {
+  ISearchProvider,
+  ISearchProviderFactory,
+  ISearchProviderRegistry
+} from './tokens';
 
+/**
+ * Search provider registry
+ */
 export class SearchProviderRegistry implements ISearchProviderRegistry {
+  /**
+   * Constructor
+   *
+   * @param translator Application translator object
+   */
+  constructor(protected translator: ITranslator = nullTranslator) {}
+
   /**
    * Add a provider to the registry.
    *
    * @param key - The provider key.
    * @returns A disposable delegate that, when disposed, deregisters the given search provider
    */
-  register<T extends Widget = Widget>(
+  add<T extends Widget = Widget>(
     key: string,
-    provider: ISearchProviderConstructor<T>
+    provider: ISearchProviderFactory<T>
   ): IDisposable {
     this._providerMap.set(key, provider);
     this._changed.emit();
@@ -32,10 +46,30 @@ export class SearchProviderRegistry implements ISearchProviderRegistry {
    * @param widget - The widget to search over.
    * @returns the search provider, or undefined if none exists.
    */
-  getProviderForWidget<T extends Widget = Widget>(
-    widget: T
-  ): ISearchProvider<T> | undefined {
-    return this._findMatchingProvider(this._providerMap, widget);
+  getProvider(widget: Widget): ISearchProvider | undefined {
+    // iterate through all providers and ask each one if it can search on the
+    // widget.
+    for (const P of this._providerMap.values()) {
+      if (P.isApplicable(widget)) {
+        return P.createNew(widget, this.translator);
+      }
+    }
+    return undefined;
+  }
+
+  /**
+   * Whether the registry as a matching provider for the widget.
+   *
+   * @param widget - The widget to search over.
+   * @returns Provider existence
+   */
+  hasProvider(widget: Widget): boolean {
+    for (const P of this._providerMap.values()) {
+      if (P.isApplicable(widget)) {
+        return true;
+      }
+    }
+    return false;
   }
 
   /**
@@ -46,27 +80,6 @@ export class SearchProviderRegistry implements ISearchProviderRegistry {
     return this._changed;
   }
 
-  private _findMatchingProvider<T extends Widget = Widget>(
-    providerMap: Private.ProviderMap,
-    widget: T
-  ): ISearchProvider<T> | undefined {
-    // iterate through all providers and ask each one if it can search on the
-    // widget.
-    for (const P of providerMap.values()) {
-      if (P.canSearchOn(widget)) {
-        return new P();
-      }
-    }
-    return undefined;
-  }
-
   private _changed = new Signal<this, void>(this);
-  private _providerMap: Private.ProviderMap = new Map<
-    string,
-    ISearchProviderConstructor<any>
-  >();
-}
-
-namespace Private {
-  export type ProviderMap = Map<string, ISearchProviderConstructor<any>>;
+  private _providerMap = new Map<string, ISearchProviderFactory<Widget>>();
 }
diff --git a/packages/documentsearch/src/searchview.tsx b/packages/documentsearch/src/searchview.tsx
new file mode 100644
index 000000000000..b93670e23522
--- /dev/null
+++ b/packages/documentsearch/src/searchview.tsx
@@ -0,0 +1,907 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+import {
+  caretDownEmptyThinIcon,
+  caretDownIcon,
+  caretRightIcon,
+  caretUpEmptyThinIcon,
+  caseSensitiveIcon,
+  classes,
+  closeIcon,
+  filterDotIcon,
+  filterIcon,
+  regexIcon,
+  VDomRenderer,
+  wordIcon
+} from '@jupyterlab/ui-components';
+import { ISignal, Signal } from '@lumino/signaling';
+import { UseSignal } from '@jupyterlab/apputils';
+import { Message } from '@lumino/messaging';
+import * as React from 'react';
+import { useCallback, useEffect, useState } from 'react';
+import { SearchDocumentModel } from './searchmodel';
+import { IFilter, IFilters, IReplaceOptionsSupport } from './tokens';
+
+const OVERLAY_CLASS = 'jp-DocumentSearch-overlay';
+const OVERLAY_ROW_CLASS = 'jp-DocumentSearch-overlay-row';
+const INPUT_CLASS = 'jp-DocumentSearch-input';
+const INPUT_LABEL_CLASS = 'jp-DocumentSearch-input-label';
+const INPUT_WRAPPER_CLASS = 'jp-DocumentSearch-input-wrapper';
+const INPUT_BUTTON_CLASS_OFF = 'jp-DocumentSearch-input-button-off';
+const INPUT_BUTTON_CLASS_ON = 'jp-DocumentSearch-input-button-on';
+const INDEX_COUNTER_CLASS = 'jp-DocumentSearch-index-counter';
+const UP_DOWN_BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-up-down-wrapper';
+const UP_DOWN_BUTTON_CLASS = 'jp-DocumentSearch-up-down-button';
+const FILTER_BUTTON_CLASS = 'jp-DocumentSearch-filter-button';
+const FILTER_BUTTON_ENABLED_CLASS = 'jp-DocumentSearch-filter-button-enabled';
+const REGEX_ERROR_CLASS = 'jp-DocumentSearch-regex-error';
+const SEARCH_OPTIONS_CLASS = 'jp-DocumentSearch-search-options';
+const SEARCH_FILTER_DISABLED_CLASS = 'jp-DocumentSearch-search-filter-disabled';
+const SEARCH_FILTER_CLASS = 'jp-DocumentSearch-search-filter';
+const REPLACE_BUTTON_CLASS = 'jp-DocumentSearch-replace-button';
+const REPLACE_BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-replace-button-wrapper';
+const REPLACE_WRAPPER_CLASS = 'jp-DocumentSearch-replace-wrapper-class';
+const REPLACE_TOGGLE_CLASS = 'jp-DocumentSearch-replace-toggle';
+const TOGGLE_WRAPPER = 'jp-DocumentSearch-toggle-wrapper';
+const TOGGLE_PLACEHOLDER = 'jp-DocumentSearch-toggle-placeholder';
+const BUTTON_CONTENT_CLASS = 'jp-DocumentSearch-button-content';
+const BUTTON_WRAPPER_CLASS = 'jp-DocumentSearch-button-wrapper';
+const SPACER_CLASS = 'jp-DocumentSearch-spacer';
+
+interface ISearchInputProps {
+  placeholder: string;
+  title: string;
+  initialValue: string;
+  inputRef?: React.RefObject<HTMLTextAreaElement>;
+  onKeyDown: (e: React.KeyboardEvent<HTMLTextAreaElement>) => void;
+  onChange: (e: React.ChangeEvent<HTMLTextAreaElement>) => void;
+  autoFocus: boolean;
+  autoUpdate: boolean;
+}
+
+function SearchInput(props: ISearchInputProps): JSX.Element {
+  const [rows, setRows] = useState<number>(1);
+
+  const updateDimensions = useCallback(
+    (event?: React.SyntheticEvent<HTMLTextAreaElement>) => {
+      const element = event
+        ? (event.target as HTMLTextAreaElement)
+        : props.inputRef?.current;
+      if (element) {
+        const split = element.value.split(/\n/);
+        // use the longest string out of all lines to compute the width.
+        let longest = split.reduce((a, b) => (a.length > b.length ? a : b), '');
+        if (element.parentNode && element.parentNode instanceof HTMLElement) {
+          element.parentNode.dataset.value = longest;
+        }
+        setRows(split.length);
+      }
+    },
+    []
+  );
+
+  useEffect(() => {
+    // For large part, `focusSearchInput()` is responsible for focusing and
+    // selecting the search input, however when `initialValue` changes, this
+    // triggers React re-render to update `defaultValue` (implemented via `key`)
+    // which means that `focusSearchInput` is no longer effective as it has
+    // already fired before the re-render, hence we use this conditional effect.
+    props.inputRef?.current?.select();
+    // After any change to initial value we also want to update rows in case if
+    // multi-line text was selected.
+    updateDimensions();
+  }, [props.initialValue]);
+
+  return (
+    <label className={INPUT_LABEL_CLASS}>
+      <textarea
+        onChange={e => {
+          props.onChange(e);
+          updateDimensions(e);
+        }}
+        onKeyDown={e => {
+          props.onKeyDown(e);
+          updateDimensions(e);
+        }}
+        rows={rows}
+        placeholder={props.placeholder}
+        className={INPUT_CLASS}
+        // Setting a key ensures that `defaultValue` will become updated
+        // when the initial value changes.
+        key={props.autoUpdate ? props.initialValue : null}
+        tabIndex={0}
+        ref={props.inputRef}
+        title={props.title}
+        defaultValue={props.initialValue}
+        autoFocus={props.autoFocus}
+      ></textarea>
+    </label>
+  );
+}
+
+interface ISearchEntryProps {
+  inputRef: React.RefObject<HTMLTextAreaElement>;
+  onCaseSensitiveToggled: () => void;
+  onRegexToggled: () => void;
+  onWordToggled: () => void;
+  onKeydown: (e: React.KeyboardEvent<HTMLTextAreaElement>) => void;
+  onChange: (e: React.ChangeEvent<HTMLTextAreaElement>) => void;
+  caseSensitive: boolean;
+  useRegex: boolean;
+  wholeWords: boolean;
+  initialSearchText: string;
+  translator?: ITranslator;
+}
+
+function SearchEntry(props: ISearchEntryProps): JSX.Element {
+  const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+
+  const caseButtonToggleClass = classes(
+    props.caseSensitive ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
+    BUTTON_CONTENT_CLASS
+  );
+  const regexButtonToggleClass = classes(
+    props.useRegex ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
+    BUTTON_CONTENT_CLASS
+  );
+  const wordButtonToggleClass = classes(
+    props.wholeWords ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
+    BUTTON_CONTENT_CLASS
+  );
+
+  const wrapperClass = INPUT_WRAPPER_CLASS;
+
+  return (
+    <div className={wrapperClass}>
+      <SearchInput
+        placeholder={trans.__('Find')}
+        onChange={e => props.onChange(e)}
+        onKeyDown={e => props.onKeydown(e)}
+        inputRef={props.inputRef}
+        initialValue={props.initialSearchText}
+        title={trans.__('Find')}
+        autoFocus={true}
+        autoUpdate={true}
+      />
+      <button
+        className={BUTTON_WRAPPER_CLASS}
+        onClick={() => {
+          props.onCaseSensitiveToggled();
+        }}
+        tabIndex={0}
+        title={trans.__('Match Case')}
+      >
+        <caseSensitiveIcon.react className={caseButtonToggleClass} tag="span" />
+      </button>
+      <button
+        className={BUTTON_WRAPPER_CLASS}
+        onClick={() => props.onWordToggled()}
+        tabIndex={0}
+        title={trans.__('Match Whole Word')}
+      >
+        <wordIcon.react className={wordButtonToggleClass} tag="span" />
+      </button>
+      <button
+        className={BUTTON_WRAPPER_CLASS}
+        onClick={() => props.onRegexToggled()}
+        tabIndex={0}
+        title={trans.__('Use Regular Expression')}
+      >
+        <regexIcon.react className={regexButtonToggleClass} tag="span" />
+      </button>
+    </div>
+  );
+}
+
+interface IReplaceEntryProps {
+  onPreserveCaseToggled: () => void;
+  onReplaceCurrent: () => void;
+  onReplaceAll: () => void;
+  onReplaceKeydown: (e: React.KeyboardEvent<HTMLTextAreaElement>) => void;
+  onChange: (e: React.ChangeEvent<HTMLTextAreaElement>) => void;
+  preserveCase: boolean;
+  replaceOptionsSupport: IReplaceOptionsSupport | undefined;
+  replaceText: string;
+  translator?: ITranslator;
+}
+
+function ReplaceEntry(props: IReplaceEntryProps): JSX.Element {
+  const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+
+  const preserveCaseButtonToggleClass = classes(
+    props.preserveCase ? INPUT_BUTTON_CLASS_ON : INPUT_BUTTON_CLASS_OFF,
+    BUTTON_CONTENT_CLASS
+  );
+
+  return (
+    <div className={REPLACE_WRAPPER_CLASS}>
+      <div className={INPUT_WRAPPER_CLASS}>
+        <SearchInput
+          placeholder={trans.__('Replace')}
+          initialValue={props.replaceText ?? ''}
+          onKeyDown={e => props.onReplaceKeydown(e)}
+          onChange={e => props.onChange(e)}
+          title={trans.__('Replace')}
+          autoFocus={false}
+          autoUpdate={false}
+        />
+        {props.replaceOptionsSupport?.preserveCase ? (
+          <button
+            className={BUTTON_WRAPPER_CLASS}
+            onClick={() => props.onPreserveCaseToggled()}
+            tabIndex={0}
+            title={trans.__('Preserve Case')}
+          >
+            <caseSensitiveIcon.react
+              className={preserveCaseButtonToggleClass}
+              tag="span"
+            />
+          </button>
+        ) : null}
+      </div>
+      <button
+        className={REPLACE_BUTTON_WRAPPER_CLASS}
+        onClick={() => props.onReplaceCurrent()}
+        tabIndex={0}
+      >
+        <span
+          className={`${REPLACE_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`}
+          tabIndex={0}
+        >
+          {trans.__('Replace')}
+        </span>
+      </button>
+      <button
+        className={REPLACE_BUTTON_WRAPPER_CLASS}
+        tabIndex={0}
+        onClick={() => props.onReplaceAll()}
+      >
+        <span
+          className={`${REPLACE_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`}
+          tabIndex={-1}
+        >
+          {trans.__('Replace All')}
+        </span>
+      </button>
+    </div>
+  );
+}
+
+interface IUpDownProps {
+  onHighlightPrevious: () => void;
+  onHighlightNext: () => void;
+  trans: TranslationBundle;
+}
+
+function UpDownButtons(props: IUpDownProps) {
+  return (
+    <div className={UP_DOWN_BUTTON_WRAPPER_CLASS}>
+      <button
+        className={BUTTON_WRAPPER_CLASS}
+        onClick={() => props.onHighlightPrevious()}
+        tabIndex={0}
+        title={props.trans.__('Previous Match')}
+      >
+        <caretUpEmptyThinIcon.react
+          className={classes(UP_DOWN_BUTTON_CLASS, BUTTON_CONTENT_CLASS)}
+          tag="span"
+        />
+      </button>
+      <button
+        className={BUTTON_WRAPPER_CLASS}
+        onClick={() => props.onHighlightNext()}
+        tabIndex={0}
+        title={props.trans.__('Next Match')}
+      >
+        <caretDownEmptyThinIcon.react
+          className={classes(UP_DOWN_BUTTON_CLASS, BUTTON_CONTENT_CLASS)}
+          tag="span"
+        />
+      </button>
+    </div>
+  );
+}
+
+interface ISearchIndexProps {
+  currentIndex: number | null;
+  totalMatches: number;
+}
+
+function SearchIndices(props: ISearchIndexProps) {
+  return (
+    <div className={INDEX_COUNTER_CLASS}>
+      {props.totalMatches === 0
+        ? '-/-'
+        : `${props.currentIndex === null ? '-' : props.currentIndex + 1}/${
+            props.totalMatches
+          }`}
+    </div>
+  );
+}
+
+interface IFilterToggleProps {
+  visible: boolean;
+  toggleVisible: () => void;
+  anyEnabled: boolean;
+  trans: TranslationBundle;
+}
+
+function FilterToggle(props: IFilterToggleProps): JSX.Element {
+  let className = `${FILTER_BUTTON_CLASS} ${BUTTON_CONTENT_CLASS}`;
+  if (props.visible) {
+    className = `${className} ${FILTER_BUTTON_ENABLED_CLASS}`;
+  }
+
+  const icon = props.anyEnabled ? filterDotIcon : filterIcon;
+
+  return (
+    <button
+      className={BUTTON_WRAPPER_CLASS}
+      onClick={() => props.toggleVisible()}
+      tabIndex={0}
+      title={
+        props.visible
+          ? props.trans.__('Hide Search Filters')
+          : props.trans.__('Show Search Filters')
+      }
+    >
+      <icon.react className={className} tag="span" height="20px" width="20px" />
+    </button>
+  );
+}
+
+interface IFilterSelectionProps {
+  title: string;
+  description: string;
+  value: boolean;
+  isEnabled: boolean;
+  onToggle: () => void;
+}
+
+function FilterSelection(props: IFilterSelectionProps): JSX.Element {
+  return (
+    <label
+      className={
+        props.isEnabled
+          ? SEARCH_FILTER_CLASS
+          : `${SEARCH_FILTER_CLASS} ${SEARCH_FILTER_DISABLED_CLASS}`
+      }
+      title={props.description}
+    >
+      <input
+        type="checkbox"
+        className="jp-mod-styled"
+        disabled={!props.isEnabled}
+        checked={props.value}
+        onChange={props.onToggle}
+      />
+      {props.title}
+    </label>
+  );
+}
+
+interface ISearchOverlayProps {
+  /**
+   * Whether the search is case sensitive or not.
+   */
+  caseSensitive: boolean;
+  /**
+   * Current match index.
+   */
+  currentIndex: number | null;
+  /**
+   * Error message
+   */
+  errorMessage: string;
+  /**
+   * Filters values.
+   */
+  filters: IFilters;
+  /**
+   * Available filters definition.
+   */
+  filtersDefinition: { [f: string]: IFilter };
+  /**
+   * Whether the document is read-only or not.
+   */
+  isReadOnly: boolean;
+  /**
+   * Whether to preserve case when replacing.
+   */
+  preserveCase: boolean;
+  /**
+   * Whether the replace entry row is visible.
+   */
+  replaceEntryVisible: boolean;
+  /**
+   * Whther the filters grid is visible.
+   */
+  filtersVisible: boolean;
+  /**
+   * Support for replace options
+   */
+  replaceOptionsSupport?: IReplaceOptionsSupport;
+  /**
+   * Replacement expression
+   */
+  replaceText: string;
+  /**
+   * The text in the search entry
+   */
+  initialSearchText: string;
+  /**
+   * Search input reference.
+   */
+  searchInputRef: React.RefObject<HTMLTextAreaElement>;
+  /**
+   * Total number of search matches.
+   */
+  totalMatches: number | null;
+  /**
+   * Application translator object
+   */
+  translator?: ITranslator;
+  /**
+   * Whether the search defines a regular expression or not.
+   */
+  useRegex: boolean;
+  /**
+   * Whether the search matches entire words or any substring.
+   */
+  wholeWords: boolean;
+  /**
+   * Callback on case sensitive toggled.
+   */
+  onCaseSensitiveToggled: () => void;
+  /**
+   * Callback on highlight next click.
+   */
+  onHighlightNext: () => void;
+  /**
+   * Callback on highlight previous click.
+   */
+  onHighlightPrevious: () => void;
+  /**
+   * Callback on filters values changed.
+   *
+   * The provided filter values are the one changing.
+   */
+  onFilterChanged: (name: string, value: boolean) => Promise<void>;
+  /**
+   * Callback on filters grid visibility change.
+   */
+  onFiltersVisibilityChanged: (v: boolean) => void;
+  /**
+   * Callback on close button click.
+   */
+  onClose: () => void;
+  /**
+   * Callback on preserve case in replace toggled.
+   */
+  onPreserveCaseToggled: () => void;
+  /**
+   * Callback on use regular expression toggled.
+   */
+  onRegexToggled: () => void;
+  /**
+   * Callback on use whole word toggled.
+   */
+  onWordToggled: () => void;
+  /**
+   * Callback on replace all button click.
+   */
+  onReplaceAll: () => void;
+  /**
+   * Callback on replace expression change.
+   */
+  onReplaceChanged: (q: string) => void;
+  /**
+   * Callback on replace current button click.
+   */
+  onReplaceCurrent: () => void;
+  /**
+   * Callback on show replace menu button click.
+   */
+  onReplaceEntryShown: (v: boolean) => void;
+  /**
+   * Callback on search expression change.
+   */
+  onSearchChanged: (q: string) => void;
+}
+
+class SearchOverlay extends React.Component<ISearchOverlayProps> {
+  constructor(props: ISearchOverlayProps) {
+    super(props);
+    this.translator = props.translator || nullTranslator;
+  }
+
+  private _onSearchChange(event: React.ChangeEvent) {
+    const searchText = (event.target as HTMLTextAreaElement).value;
+    this.props.onSearchChanged(searchText);
+  }
+
+  private _onSearchKeydown(event: React.KeyboardEvent) {
+    if (event.keyCode === 13) {
+      // Enter pressed
+      event.stopPropagation();
+      event.preventDefault();
+      if (event.ctrlKey) {
+        const textarea = event.target as HTMLTextAreaElement;
+        this._insertNewLine(textarea);
+        this.props.onSearchChanged(textarea.value);
+      } else {
+        event.shiftKey
+          ? this.props.onHighlightPrevious()
+          : this.props.onHighlightNext();
+      }
+    }
+  }
+
+  private _onReplaceKeydown(event: React.KeyboardEvent) {
+    if (event.keyCode === 13) {
+      // Enter pressed
+      event.stopPropagation();
+      event.preventDefault();
+      if (event.ctrlKey) {
+        this._insertNewLine(event.target as HTMLTextAreaElement);
+      } else {
+        this.props.onReplaceCurrent();
+      }
+    }
+  }
+
+  private _insertNewLine(textarea: HTMLTextAreaElement) {
+    const [start, end] = [textarea.selectionStart, textarea.selectionEnd];
+    textarea.setRangeText('\n', start, end, 'end');
+  }
+
+  private _onClose() {
+    // Clean up and close widget.
+    this.props.onClose();
+  }
+
+  private _onReplaceToggled() {
+    // Deactivate invalid replace filters
+    if (!this.props.replaceEntryVisible) {
+      for (const key in this.props.filtersDefinition) {
+        const filter = this.props.filtersDefinition[key];
+        if (!filter.supportReplace) {
+          this.props.onFilterChanged(key, false).catch(reason => {
+            console.error(
+              `Fail to update filter value for ${filter.title}:\n${reason}`
+            );
+          });
+        }
+      }
+    }
+
+    this.props.onReplaceEntryShown(!this.props.replaceEntryVisible);
+  }
+
+  private _toggleFiltersVisibility() {
+    this.props.onFiltersVisibilityChanged(!this.props.filtersVisible);
+  }
+
+  render() {
+    const trans = this.translator.load('jupyterlab');
+    const showReplace =
+      !this.props.isReadOnly && this.props.replaceEntryVisible;
+    const filters = this.props.filtersDefinition;
+
+    const hasFilters = Object.keys(filters).length > 0;
+    const filterToggle = hasFilters ? (
+      <FilterToggle
+        visible={this.props.filtersVisible}
+        anyEnabled={Object.keys(filters).some(name => {
+          const filter = filters[name];
+          return this.props.filters[name] ?? filter.default;
+        })}
+        toggleVisible={() => this._toggleFiltersVisibility()}
+        trans={trans}
+      />
+    ) : null;
+    const filter = hasFilters ? (
+      <div className={SEARCH_OPTIONS_CLASS}>
+        {Object.keys(filters).map(name => {
+          const filter = filters[name];
+          return (
+            <FilterSelection
+              key={name}
+              title={filter.title}
+              description={filter.description}
+              isEnabled={!showReplace || filter.supportReplace}
+              onToggle={async () => {
+                await this.props.onFilterChanged(
+                  name,
+                  !this.props.filters[name]
+                );
+              }}
+              value={this.props.filters[name] ?? filter.default}
+            />
+          );
+        })}
+      </div>
+    ) : null;
+    const icon = this.props.replaceEntryVisible
+      ? caretDownIcon
+      : caretRightIcon;
+
+    // TODO: Error messages from regex are not currently localizable.
+    return (
+      <>
+        <div className={OVERLAY_ROW_CLASS}>
+          {this.props.isReadOnly ? (
+            <div className={TOGGLE_PLACEHOLDER} />
+          ) : (
+            <button
+              className={TOGGLE_WRAPPER}
+              onClick={() => this._onReplaceToggled()}
+              tabIndex={0}
+              title={trans.__('Toggle Replace')}
+            >
+              <icon.react
+                className={`${REPLACE_TOGGLE_CLASS} ${BUTTON_CONTENT_CLASS}`}
+                tag="span"
+                elementPosition="center"
+                height="20px"
+                width="20px"
+              />
+            </button>
+          )}
+          <SearchEntry
+            inputRef={this.props.searchInputRef}
+            useRegex={this.props.useRegex}
+            caseSensitive={this.props.caseSensitive}
+            wholeWords={this.props.wholeWords}
+            onCaseSensitiveToggled={this.props.onCaseSensitiveToggled}
+            onRegexToggled={this.props.onRegexToggled}
+            onWordToggled={this.props.onWordToggled}
+            onKeydown={(e: React.KeyboardEvent<HTMLTextAreaElement>) =>
+              this._onSearchKeydown(e)
+            }
+            onChange={(e: React.ChangeEvent<HTMLTextAreaElement>) =>
+              this._onSearchChange(e)
+            }
+            initialSearchText={this.props.initialSearchText}
+            translator={this.translator}
+          />
+          {filterToggle}
+          <SearchIndices
+            currentIndex={this.props.currentIndex}
+            totalMatches={this.props.totalMatches ?? 0}
+          />
+          <UpDownButtons
+            onHighlightPrevious={() => {
+              this.props.onHighlightPrevious();
+            }}
+            onHighlightNext={() => {
+              this.props.onHighlightNext();
+            }}
+            trans={trans}
+          />
+          <button
+            className={BUTTON_WRAPPER_CLASS}
+            onClick={() => this._onClose()}
+            tabIndex={0}
+          >
+            <closeIcon.react
+              className="jp-icon-hover"
+              elementPosition="center"
+              height="16px"
+              width="16px"
+            />
+          </button>
+        </div>
+        <div className={OVERLAY_ROW_CLASS}>
+          {showReplace ? (
+            <>
+              <ReplaceEntry
+                onPreserveCaseToggled={this.props.onPreserveCaseToggled}
+                onReplaceKeydown={(e: React.KeyboardEvent) =>
+                  this._onReplaceKeydown(e)
+                }
+                onChange={(e: React.ChangeEvent) =>
+                  this.props.onReplaceChanged(
+                    (e.target as HTMLTextAreaElement).value
+                  )
+                }
+                onReplaceCurrent={() => this.props.onReplaceCurrent()}
+                onReplaceAll={() => this.props.onReplaceAll()}
+                replaceOptionsSupport={this.props.replaceOptionsSupport}
+                replaceText={this.props.replaceText}
+                preserveCase={this.props.preserveCase}
+                translator={this.translator}
+              />
+              <div className={SPACER_CLASS}></div>
+            </>
+          ) : null}
+        </div>
+        {this.props.filtersVisible ? filter : null}
+        {!!this.props.errorMessage && (
+          <div className={REGEX_ERROR_CLASS}>{this.props.errorMessage}</div>
+        )}
+      </>
+    );
+  }
+
+  protected translator: ITranslator;
+}
+
+/**
+ * Search document widget
+ */
+export class SearchDocumentView extends VDomRenderer<SearchDocumentModel> {
+  /**
+   * Search document widget constructor.
+   *
+   * @param model Search document model
+   * @param translator Application translator object
+   */
+  constructor(
+    model: SearchDocumentModel,
+    protected translator?: ITranslator
+  ) {
+    super(model);
+    this.addClass(OVERLAY_CLASS);
+    this._searchInput = React.createRef<HTMLTextAreaElement>();
+  }
+
+  /**
+   * A signal emitted when the widget is closed.
+   *
+   * Closing the widget detached it from the DOM but does not dispose it.
+   */
+  get closed(): ISignal<SearchDocumentView, void> {
+    return this._closed;
+  }
+
+  /**
+   * Focus search input.
+   */
+  focusSearchInput(): void {
+    this._searchInput.current?.select();
+  }
+
+  /**
+   * Set the initial search text.
+   */
+  setSearchText(search: string): void {
+    this.model.initialQuery = search;
+    // Only set the new search text to search expression if there is any
+    // to avoid nullifying the one that was remembered from last time.
+    if (search) {
+      this.model.searchExpression = search;
+    }
+  }
+
+  /**
+   * Set the replace text
+   *
+   * It does not trigger a view update.
+   */
+  setReplaceText(replace: string): void {
+    this.model.replaceText = replace;
+  }
+
+  /**
+   * Show the replacement input box.
+   */
+  showReplace(): void {
+    this.setReplaceInputVisibility(true);
+  }
+
+  /**
+   * A message handler invoked on a `'close-request'` message.
+   *
+   * #### Notes
+   * On top of the default implementation emit closed signal and end model query.
+   */
+  protected onCloseRequest(msg: Message): void {
+    super.onCloseRequest(msg);
+    this._closed.emit();
+    void this.model.endQuery();
+  }
+
+  protected setReplaceInputVisibility(v: boolean): void {
+    if (this._showReplace !== v) {
+      this._showReplace = v;
+      this.update();
+    }
+  }
+
+  protected setFiltersVisibility(v: boolean): void {
+    if (this._showFilters !== v) {
+      this._showFilters = v;
+      this.update();
+    }
+  }
+
+  render(): JSX.Element {
+    return this.model.filtersDefinitionChanged ? (
+      <UseSignal signal={this.model.filtersDefinitionChanged}>
+        {() => this._renderOverlay()}
+      </UseSignal>
+    ) : (
+      this._renderOverlay()
+    );
+  }
+
+  private _renderOverlay() {
+    return (
+      <SearchOverlay
+        caseSensitive={this.model.caseSensitive}
+        currentIndex={this.model.currentIndex}
+        isReadOnly={this.model.isReadOnly}
+        errorMessage={this.model.parsingError}
+        filters={this.model.filters}
+        filtersDefinition={this.model.filtersDefinition}
+        preserveCase={this.model.preserveCase}
+        replaceEntryVisible={this._showReplace}
+        filtersVisible={this._showFilters}
+        replaceOptionsSupport={this.model.replaceOptionsSupport}
+        replaceText={this.model.replaceText}
+        initialSearchText={this.model.initialQuery}
+        searchInputRef={
+          this._searchInput as React.RefObject<HTMLTextAreaElement>
+        }
+        totalMatches={this.model.totalMatches}
+        translator={this.translator}
+        useRegex={this.model.useRegex}
+        wholeWords={this.model.wholeWords}
+        onCaseSensitiveToggled={() => {
+          this.model.caseSensitive = !this.model.caseSensitive;
+        }}
+        onRegexToggled={() => {
+          this.model.useRegex = !this.model.useRegex;
+        }}
+        onWordToggled={() => {
+          this.model.wholeWords = !this.model.wholeWords;
+        }}
+        onFilterChanged={async (name: string, value: boolean) => {
+          await this.model.setFilter(name, value);
+        }}
+        onFiltersVisibilityChanged={(v: boolean) => {
+          this.setFiltersVisibility(v);
+        }}
+        onHighlightNext={() => {
+          void this.model.highlightNext();
+        }}
+        onHighlightPrevious={() => {
+          void this.model.highlightPrevious();
+        }}
+        onPreserveCaseToggled={() => {
+          this.model.preserveCase = !this.model.preserveCase;
+        }}
+        onSearchChanged={(q: string) => {
+          this.model.searchExpression = q;
+        }}
+        onClose={() => {
+          this.close();
+        }}
+        onReplaceEntryShown={(v: boolean) => {
+          this.setReplaceInputVisibility(v);
+        }}
+        onReplaceChanged={(q: string) => {
+          this.model.replaceText = q;
+        }}
+        onReplaceCurrent={() => {
+          void this.model.replaceCurrentMatch();
+        }}
+        onReplaceAll={() => {
+          void this.model.replaceAllMatches();
+        }}
+      ></SearchOverlay>
+    );
+  }
+
+  private _searchInput: React.RefObject<HTMLTextAreaElement>;
+  private _showReplace = false;
+  private _showFilters = false;
+  private _closed = new Signal<this, void>(this);
+}
diff --git a/packages/documentsearch/src/tokens.ts b/packages/documentsearch/src/tokens.ts
index 5dde1961ab46..9fb2c35f7f43 100644
--- a/packages/documentsearch/src/tokens.ts
+++ b/packages/documentsearch/src/tokens.ts
@@ -1,20 +1,213 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { ITranslator } from '@jupyterlab/translation';
 import { Token } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
-import { ISearchProvider, ISearchProviderConstructor } from './interfaces';
+import { Widget } from '@lumino/widgets';
 
-/* tslint:disable */
 /**
  * The search provider registry token.
  */
 export const ISearchProviderRegistry = new Token<ISearchProviderRegistry>(
-  '@jupyterlab/documentsearch:ISearchProviderRegistry'
+  '@jupyterlab/documentsearch:ISearchProviderRegistry',
+  `A service for a registry of search
+  providers for the application. Plugins can register their UI elements with this registry
+  to provide find/replace support.`
 );
-/* tslint:enable */
 
+/**
+ * Filter interface
+ */
+export interface IFilter {
+  /**
+   * Filter title
+   */
+  title: string;
+  /**
+   * Filter description
+   */
+  description: string;
+  /**
+   * Default value
+   */
+  default: boolean;
+  /**
+   * Does the filter support replace?
+   */
+  supportReplace: boolean;
+}
+
+/**
+ * Type of filters
+ *
+ * TODO support additional filter type
+ */
+export interface IFilters {
+  /**
+   * Filter name: value
+   */
+  [key: string]: boolean;
+}
+
+/**
+ * Options adjusting replacement behavior.
+ */
+export interface IReplaceOptions {
+  /**
+   * Should the letter case be preserved?
+   */
+  preserveCase?: boolean;
+  /**
+   * Did user request regular expressions?
+   *
+   * This has impact on how `$` is interpreted in replacement text.
+   */
+  regularExpression?: boolean;
+}
+
+/**
+ * Support for options adjusting replacement behavior.
+ */
+export interface IReplaceOptionsSupport {
+  /**
+   * Support for preserving letter case.
+   */
+  preserveCase?: boolean;
+}
+
+/**
+ * React search component state
+ */
+export interface IDisplayState {
+  /**
+   * The index of the currently selected match
+   */
+  currentIndex: number | null;
+
+  /**
+   * The total number of matches found in the document
+   */
+  totalMatches: number;
+
+  /**
+   * Should the search be case sensitive?
+   */
+  caseSensitive: boolean;
+
+  /**
+   * Should the search string be treated as a RegExp?
+   */
+  useRegex: boolean;
+
+  /**
+   * The text in the search entry
+   */
+  searchText: string;
+
+  /**
+   * The query constructed from the text and the case/regex flags
+   */
+  query: RegExp | null;
+
+  /**
+   * An error message (used for bad regex syntax)
+   */
+  errorMessage: string;
+
+  /**
+   * Should the focus forced into the input on the next render?
+   */
+  forceFocus: boolean;
+
+  /**
+   * Whether or not the search input is currently focused
+   */
+  searchInputFocused: boolean;
+
+  /**
+   * Whether or not the replace input is currently focused
+   */
+  replaceInputFocused: boolean;
+
+  /**
+   * The text in the replace entry
+   */
+  replaceText: string;
+
+  /**
+   * Whether or not the replace entry row is visible
+   */
+  replaceEntryVisible: boolean;
+
+  /**
+   * What should we include when we search?
+   */
+  filters: IFilters;
+
+  /**
+   * Is the filters view open?
+   */
+  filtersOpen: boolean;
+}
+
+/**
+ * Base search match interface
+ */
+export interface ISearchMatch {
+  /**
+   * Text of the exact match itself
+   */
+  readonly text: string;
+
+  /**
+   * Start location of the match (in a text, this is the column)
+   */
+  position: number;
+}
+
+/**
+ * HTML search match interface
+ */
+export interface IHTMLSearchMatch extends ISearchMatch {
+  /**
+   * Node containing the match
+   */
+  readonly node: Text;
+}
+
+/**
+ * Interface for search provider factory
+ */
+export interface ISearchProviderFactory<T extends Widget = Widget> {
+  /**
+   * Instantiate a search provider for the widget.
+   *
+   * #### Notes
+   * The widget provided is always checked using `isApplicable` before calling
+   * this factory.
+   *
+   * @param widget The widget to search on
+   * @param translator [optional] The translator object
+   *
+   * @returns The search provider on the widget
+   */
+  readonly createNew: (widget: T, translator?: ITranslator) => ISearchProvider;
+
+  /**
+   * Report whether or not this provider has the ability to search on the
+   * given widget. The function is a type guard, meaning that it returns
+   * a boolean, but has a type predicate (`x is T`) for its return signature.
+   *
+   * @param domain Widget to test
+   */
+  readonly isApplicable: (domain: Widget) => domain is T;
+}
+
+/**
+ * Search provider registry interface
+ */
 export interface ISearchProviderRegistry {
   /**
    * Add a provider to the registry.
@@ -22,7 +215,7 @@ export interface ISearchProviderRegistry {
    * @param key - The provider key.
    * @returns A disposable delegate that, when disposed, deregisters the given search provider
    */
-  register(key: string, provider: ISearchProviderConstructor<any>): IDisposable;
+  add(key: string, provider: ISearchProviderFactory<Widget>): IDisposable;
 
   /**
    * Returns a matching provider for the widget.
@@ -30,7 +223,15 @@ export interface ISearchProviderRegistry {
    * @param widget - The widget to search over.
    * @returns the search provider, or undefined if none exists.
    */
-  getProviderForWidget(widget: any): ISearchProvider<any> | undefined;
+  getProvider(widget: Widget): ISearchProvider | undefined;
+
+  /**
+   * Whether the registry as a matching provider for the widget.
+   *
+   * @param widget - The widget to search over.
+   * @returns Provider existence
+   */
+  hasProvider(widget: Widget): boolean;
 
   /**
    * Signal that emits when a new search provider has been registered
@@ -38,3 +239,139 @@ export interface ISearchProviderRegistry {
    */
   changed: ISignal<ISearchProviderRegistry, void>;
 }
+
+/**
+ * Base search provider interface
+ *
+ * #### Notes
+ * It is implemented by subprovider like searching on a single cell.
+ */
+export interface IBaseSearchProvider extends IDisposable {
+  /**
+   * Start a search
+   *
+   * @param query Regular expression to test for
+   * @param filters Filters to apply when searching
+   */
+  startQuery(query: RegExp, filters: IFilters): Promise<void>;
+
+  /**
+   * Stop a search and clear any internal state of the provider
+   */
+  endQuery(): Promise<void>;
+
+  /**
+   * Clear currently highlighted match.
+   */
+  clearHighlight(): Promise<void>;
+
+  /**
+   * Highlight the next match
+   *
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The next match if it exists
+   */
+  highlightNext(loop?: boolean): Promise<ISearchMatch | undefined>;
+
+  /**
+   * Highlight the previous match
+   *
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The previous match if it exists.
+   */
+  highlightPrevious(loop?: boolean): Promise<ISearchMatch | undefined>;
+
+  /**
+   * Replace the currently selected match with the provided text
+   * and highlight the next match.
+   *
+   * @param newText The replacement text
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  replaceCurrentMatch(
+    newText: string,
+    loop?: boolean,
+    options?: IReplaceOptions
+  ): Promise<boolean>;
+
+  /**
+   * Replace all matches in the widget with the provided text
+   *
+   * @param newText The replacement text.
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  replaceAllMatches(
+    newText: string,
+    options?: IReplaceOptions
+  ): Promise<boolean>;
+
+  /**
+   * Signal indicating that something in the search has changed, so the UI should update
+   */
+  readonly stateChanged: ISignal<IBaseSearchProvider, void>;
+
+  /**
+   * The current index of the selected match.
+   */
+  readonly currentMatchIndex: number | null;
+
+  /**
+   * The number of matches.
+   */
+  readonly matchesCount: number | null;
+}
+
+/**
+ * Search provider interface
+ */
+export interface ISearchProvider extends IBaseSearchProvider {
+  /**
+   * Get an initial query value if applicable so that it can be entered
+   * into the search box as an initial query
+   *
+   * @returns Initial value used to populate the search box.
+   */
+  getInitialQuery(): string;
+
+  /**
+   * Set to true if the widget under search is read-only, false
+   * if it is editable. Will be used to determine whether to show
+   * the replace option.
+   */
+  readonly isReadOnly: boolean;
+
+  /**
+   * Specifies which replace options are supported by provider.
+   */
+  readonly replaceOptionsSupport?: IReplaceOptionsSupport;
+
+  /**
+   * Get the filters definition for the given provider.
+   *
+   * @returns The filters definition.
+   *
+   * ### Notes
+   * TODO For now it only supports boolean filters (represented with checkboxes)
+   */
+  getFilters?(): { [key: string]: IFilter };
+
+  /**
+   * Validate a new filter value for the widget.
+   *
+   * @param name The filter name
+   * @param value The filter value candidate
+   *
+   * @returns The valid filter value
+   */
+  validateFilter?(name: string, value: boolean): Promise<boolean>;
+
+  /**
+   * Signal emitted when filter definition changed.
+   */
+  filtersChanged?: ISignal<ISearchProvider, void>;
+}
diff --git a/packages/documentsearch/style/base.css b/packages/documentsearch/style/base.css
index 45567031ccba..1406a37f8e93 100644
--- a/packages/documentsearch/style/base.css
+++ b/packages/documentsearch/style/base.css
@@ -5,8 +5,13 @@
 .jp-DocumentSearch-input {
   border: none;
   outline: none;
+  color: var(--jp-ui-font-color0);
   font-size: var(--jp-ui-font-size1);
   background-color: var(--jp-layout-color0);
+  font-family: var(--jp-ui-font-family);
+  padding: 2px 1px;
+  resize: none;
+  white-space: pre;
 }
 
 .jp-DocumentSearch-overlay {
@@ -20,6 +25,8 @@
   min-width: 405px;
   padding: 2px;
   font-size: var(--jp-ui-font-size1);
+
+  --jp-private-document-search-button-height: 20px;
 }
 
 .jp-DocumentSearch-overlay button {
@@ -41,11 +48,6 @@
   margin-bottom: 2px;
 }
 
-.jp-DocumentSearch-overlay * {
-  color: var(--jp-ui-font-color0);
-  background-position: center;
-}
-
 .jp-DocumentSearch-button-content {
   display: inline-block;
   cursor: pointer;
@@ -54,6 +56,11 @@
   height: 100%;
 }
 
+.jp-DocumentSearch-button-content svg {
+  width: 100%;
+  height: 100%;
+}
+
 .jp-DocumentSearch-input-wrapper {
   border: var(--jp-border-width) solid var(--jp-border-color0);
   display: flex;
@@ -61,12 +68,8 @@
   margin: 2px;
 }
 
-.jp-DocumentSearch-focused-input {
-  border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
-}
-
-.jp-DocumentSearch-input-wrapper * {
-  background-color: var(--jp-layout-color0);
+.jp-DocumentSearch-input-wrapper:focus-within {
+  border-color: var(--jp-cell-editor-active-border-color);
 }
 
 .jp-DocumentSearch-toggle-wrapper,
@@ -76,17 +79,18 @@
   display: inline-block;
   border: none;
   box-sizing: border-box;
-  background-repeat: no-repeat;
 }
 
 .jp-DocumentSearch-toggle-wrapper {
+  flex-shrink: 0;
   width: 14px;
   height: 14px;
 }
 
 .jp-DocumentSearch-button-wrapper {
-  width: 20px;
-  height: 20px;
+  flex-shrink: 0;
+  width: var(--jp-private-document-search-button-height);
+  height: var(--jp-private-document-search-button-height);
 }
 
 .jp-DocumentSearch-toggle-wrapper:focus,
@@ -106,7 +110,7 @@
   width: 5px;
 }
 
-.jp-DocumentSearch-input-button:before {
+.jp-DocumentSearch-input-button::before {
   display: block;
   padding-top: 100%;
 }
@@ -127,7 +131,7 @@
   padding-left: 10px;
   padding-right: 10px;
   user-select: none;
-  min-width: 43px;
+  min-width: 35px;
   display: inline-block;
 }
 
@@ -145,18 +149,12 @@
 .jp-DocumentSearch-up-down-wrapper button {
   outline: 0;
   border: none;
-  width: 20px;
-  height: 20px;
-  background-repeat: no-repeat;
-  background-position: center;
+  width: var(--jp-private-document-search-button-height);
+  height: var(--jp-private-document-search-button-height);
   vertical-align: middle;
   margin: 1px 5px 2px;
 }
 
-.jp-DocumentSearch-up-down-button {
-  border-radius: var(--jp-border-radius);
-}
-
 .jp-DocumentSearch-up-down-button:hover {
   background-color: var(--jp-layout-color2);
 }
@@ -165,57 +163,58 @@
   background-color: var(--jp-layout-color3);
 }
 
-.jp-DocumentSearch-ellipses-button {
+.jp-DocumentSearch-filter-button {
   border-radius: var(--jp-border-radius);
 }
 
-.jp-DocumentSearch-ellipses-button:hover {
+.jp-DocumentSearch-filter-button:hover {
   background-color: var(--jp-layout-color2);
 }
 
-.jp-DocumentSearch-ellipses-button-enabled {
-  background-color: var(--jp-layout-color3);
+.jp-DocumentSearch-filter-button-enabled {
+  background-color: var(--jp-layout-color2);
 }
 
-.jp-DocumentSearch-ellipses-button-enabled:hover {
-  background-color: var(--jp-layout-color2);
+.jp-DocumentSearch-filter-button-enabled:hover {
+  background-color: var(--jp-layout-color3);
 }
 
 .jp-DocumentSearch-search-options {
   padding: 0 8px;
   margin-left: 3px;
-  width: 200px;
+  width: 100%;
   display: grid;
+  justify-content: start;
+  grid-template-columns: 1fr 1fr;
+  align-items: center;
+  justify-items: stretch;
 }
-.jp-DocumentSearch-search-options-disabled {
+
+.jp-DocumentSearch-search-filter-disabled {
   color: var(--jp-ui-font-color2);
 }
 
-.jp-DocumentSearch-search-options input {
-  float: right;
+.jp-DocumentSearch-search-filter {
+  display: flex;
+  align-items: center;
+  user-select: none;
 }
 
 .jp-DocumentSearch-regex-error {
   color: var(--jp-error-color0);
 }
 
-.jp-DocumentSearch-replace-entry {
-  border: var(--jp-border-width) solid var(--jp-border-color0);
-  display: flex;
-  background-color: var(--jp-layout-color0);
-  font-size: var(--jp-ui-font-size1);
-  margin: 2px;
-}
-
 .jp-DocumentSearch-replace-button-wrapper {
   overflow: hidden;
   display: inline-block;
   box-sizing: border-box;
   border: var(--jp-border-width) solid var(--jp-border-color0);
-  margin: 2px;
+  margin: auto 2px;
+  padding: 1px 4px;
+  height: calc(var(--jp-private-document-search-button-height) + 2px);
+  flex-shrink: 0;
 }
 
-.jp-DocumentSearch-replace-entry:focus,
 .jp-DocumentSearch-replace-button-wrapper:focus {
   border: var(--jp-border-width) solid var(--jp-cell-editor-active-border-color);
 }
@@ -225,7 +224,10 @@
   text-align: center;
   cursor: pointer;
   box-sizing: border-box;
-  color: var(--jp-font-color1);
+  color: var(--jp-ui-font-color1);
+
+  /* height - 2 * (padding of wrapper) */
+  line-height: calc(var(--jp-private-document-search-button-height) - 2px);
   width: 100%;
   height: 100%;
 }
@@ -249,12 +251,36 @@
   background-color: var(--jp-layout-color2);
 }
 
-.jp-DocumentSearch-document-loaded .jp-DocumentSearch-document-loading {
-  display: block !important;
-}
-
-.jp-DocumentSearch-document-loading {
-  display: none;
-  margin: 5px;
-  color: var(--jp-ui-font-color2);
+/*
+  The following few rules allow the search box to expand horizontally,
+  as the text within it grows. This is done by using putting
+  the text within a wrapper element and using that wrapper for sizing,
+  as <textarea> and <input> tags do not grow automatically.
+  This is the underlying technique:
+  https://til.simonwillison.net/css/resizing-textarea
+*/
+.jp-DocumentSearch-input-label::after {
+  content: attr(data-value) ' ';
+  visibility: hidden;
+  white-space: pre;
+}
+
+.jp-DocumentSearch-input-label {
+  display: inline-grid;
+  align-items: stretch;
+}
+
+.jp-DocumentSearch-input-label::after,
+.jp-DocumentSearch-input-label > .jp-DocumentSearch-input {
+  width: auto;
+  min-width: 1em;
+  grid-area: 1/2;
+  font: inherit;
+  padding: 2px 3px;
+  margin: 0;
+  resize: none;
+  background: none;
+  appearance: none;
+  border: none;
+  overflow: hidden;
 }
diff --git a/packages/documentsearch/style/index.css b/packages/documentsearch/style/index.css
index 4f80f4f9b81e..38237a5e1956 100644
--- a/packages/documentsearch/style/index.css
+++ b/packages/documentsearch/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/documentsearch/test/documentsearchprovider.spec.ts b/packages/documentsearch/test/documentsearchprovider.spec.ts
index 02ea4a62b459..4f64a20a6031 100644
--- a/packages/documentsearch/test/documentsearchprovider.spec.ts
+++ b/packages/documentsearch/test/documentsearchprovider.spec.ts
@@ -2,8 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 import {
   FOUND_CLASSES,
-  GenericSearchProvider,
-  IGenericSearchMatch
+  GenericSearchProvider
 } from '@jupyterlab/documentsearch';
 import { Widget } from '@lumino/widgets';
 
@@ -13,112 +12,116 @@ describe('documentsearch/genericsearchprovider', () => {
   describe('GenericSearchProvider', () => {
     let provider: GenericSearchProvider;
     let widget: Widget;
-    let match: IGenericSearchMatch;
 
     beforeEach(() => {
-      provider = new GenericSearchProvider();
       widget = new Widget();
+      provider = new GenericSearchProvider(widget);
     });
 
     afterEach(async () => {
-      await provider.endSearch();
       widget.dispose();
     });
 
-    function getHTMLForMatch(match: IGenericSearchMatch): string | undefined {
-      return match.spanElement?.closest('pre')?.innerHTML;
-    }
-
-    async function queryOne(query: RegExp): Promise<IGenericSearchMatch> {
-      let matches = (await provider.startQuery(
-        query,
-        widget
-      )) as IGenericSearchMatch[];
-      expect(matches).toHaveLength(1);
-      return matches[0];
-    }
+    describe('#preserveCase()', () => {
+      it.each([
+        ['OLD_TEXT_1', 'new_text_1', 'NEW_TEXT_1'],
+        ['OLD_TEXT_1', 'NEW_TEXT_1', 'NEW_TEXT_1'],
+        ['old_text_1', 'new_text_1', 'new_text_1'],
+        ['old_text_1', 'NEW_TEXT_1', 'new_text_1'],
+        ['Old', 'new', 'New'],
+        ['Old', '𐐶ew', '𐐎ew']
+      ])(
+        'should copy case from %s to %s yielding %s',
+        (oldText, newText, expected) => {
+          const replace = GenericSearchProvider.preserveCase(oldText, newText);
+          expect(replace).toEqual(expected);
+        }
+      );
+    });
 
     describe('#startQuery()', () => {
-      it('should highlight text fragment nested in a node', async () => {
-        widget.node.innerHTML = '<pre>xyz</pre>';
-        match = await queryOne(/x/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span class="${MATCH_CLASSES}">x</span>yz`
-        );
-
-        match = await queryOne(/y/);
-        expect(getHTMLForMatch(match)).toBe(
-          `x<span class="${MATCH_CLASSES}">y</span>z`
-        );
-
-        match = await queryOne(/z/);
-        expect(getHTMLForMatch(match)).toBe(
-          `xy<span class="${MATCH_CLASSES}">z</span>`
-        );
-      });
-
-      it('should highlight in presence of nested spans adjacent to text nodes', async () => {
-        widget.node.innerHTML = '<pre><span>x</span>yz</pre>';
-        match = await queryOne(/x/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span><span class="${MATCH_CLASSES}">x</span></span>yz`
-        );
-
-        match = await queryOne(/y/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span>x</span><span class="${MATCH_CLASSES}">y</span>z`
-        );
-
-        match = await queryOne(/z/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span>x</span>y<span class="${MATCH_CLASSES}">z</span>`
-        );
-
-        widget.node.innerHTML = '<pre>x<span>y</span>z</pre>';
-        match = await queryOne(/x/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span class="${MATCH_CLASSES}">x</span><span>y</span>z`
-        );
-
-        match = await queryOne(/y/);
-        expect(getHTMLForMatch(match)).toBe(
-          `x<span><span class="${MATCH_CLASSES}">y</span></span>z`
-        );
-
-        match = await queryOne(/z/);
-        expect(getHTMLForMatch(match)).toBe(
-          `x<span>y</span><span class="${MATCH_CLASSES}">z</span>`
-        );
-
-        widget.node.innerHTML = '<pre>xy<span>z</span></pre>';
-        match = await queryOne(/x/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span class="${MATCH_CLASSES}">x</span>y<span>z</span>`
-        );
-
-        match = await queryOne(/y/);
-        expect(getHTMLForMatch(match)).toBe(
-          `x<span class="${MATCH_CLASSES}">y</span><span>z</span>`
-        );
-
-        match = await queryOne(/z/);
-        expect(getHTMLForMatch(match)).toBe(
-          `xy<span><span class="${MATCH_CLASSES}">z</span></span>`
-        );
-      });
-
-      it('should slice out the match correctly in nested nodes', async () => {
-        widget.node.innerHTML = '<pre><span>xy</span>z</pre>';
-        match = await queryOne(/x/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span><span class="${MATCH_CLASSES}">x</span>y</span>z`
-        );
+      it.each([
+        [/x/, '<pre>xyz</pre>', `<mark class="${MATCH_CLASSES}">x</mark>yz`],
+        [/y/, '<pre>xyz</pre>', `x<mark class="${MATCH_CLASSES}">y</mark>z`],
+        [/z/, '<pre>xyz</pre>', `xy<mark class="${MATCH_CLASSES}">z</mark>`],
+        [
+          /x/,
+          '<pre><span>x</span>yz</pre>',
+          `<span><mark class="${MATCH_CLASSES}">x</mark></span>yz`
+        ],
+        [
+          /y/,
+          '<pre><span>x</span>yz</pre>',
+          `<span>x</span><mark class="${MATCH_CLASSES}">y</mark>z`
+        ],
+        [
+          /z/,
+          '<pre><span>x</span>yz</pre>',
+          `<span>x</span>y<mark class="${MATCH_CLASSES}">z</mark>`
+        ],
+        [
+          /x/,
+          '<pre>x<span>y</span>z</pre>',
+          `<mark class="${MATCH_CLASSES}">x</mark><span>y</span>z`
+        ],
+        [
+          /y/,
+          '<pre>x<span>y</span>z</pre>',
+          `x<span><mark class="${MATCH_CLASSES}">y</mark></span>z`
+        ],
+        [
+          /z/,
+          '<pre>x<span>y</span>z</pre>',
+          `x<span>y</span><mark class="${MATCH_CLASSES}">z</mark>`
+        ],
+        [
+          /x/,
+          '<pre>xy<span>z</span></pre>',
+          `<mark class="${MATCH_CLASSES}">x</mark>y<span>z</span>`
+        ],
+        [
+          /y/,
+          '<pre>xy<span>z</span></pre>',
+          `x<mark class="${MATCH_CLASSES}">y</mark><span>z</span>`
+        ],
+        [
+          /z/,
+          '<pre>xy<span>z</span></pre>',
+          `xy<span><mark class="${MATCH_CLASSES}">z</mark></span>`
+        ]
+      ])(
+        'should highlight %s fragment in %s',
+        async (query, content, expected) => {
+          widget.node.innerHTML = content;
+          await provider.startQuery(query);
+          expect(widget.node.firstElementChild!.innerHTML).toEqual(expected);
+        }
+      );
+    });
 
-        match = await queryOne(/y/);
-        expect(getHTMLForMatch(match)).toBe(
-          `<span>x<span class="${MATCH_CLASSES}">y</span></span>z`
-        );
-      });
+    describe('#endQuery()', () => {
+      it.each([
+        [/x/, '<pre>xyz</pre>'],
+        [/y/, '<pre>xyz</pre>'],
+        [/z/, '<pre>xyz</pre>'],
+        [/x/, '<pre><span>x</span>yz</pre>'],
+        [/y/, '<pre><span>x</span>yz</pre>'],
+        [/z/, '<pre><span>x</span>yz</pre>'],
+        [/x/, '<pre>x<span>y</span>z</pre>'],
+        [/y/, '<pre>x<span>y</span>z</pre>'],
+        [/z/, '<pre>x<span>y</span>z</pre>'],
+        [/x/, '<pre>xy<span>z</span></pre>'],
+        [/y/, '<pre>xy<span>z</span></pre>'],
+        [/z/, '<pre>xy<span>z</span></pre>']
+      ])(
+        'should restore highlighted %s fragment in %s',
+        async (query, content) => {
+          widget.node.innerHTML = content;
+          await provider.startQuery(query);
+          await provider.endQuery();
+          expect(widget.node.innerHTML).toEqual(content);
+        }
+      );
     });
   });
 });
diff --git a/packages/documentsearch/test/searchmodel.spec.ts b/packages/documentsearch/test/searchmodel.spec.ts
new file mode 100644
index 000000000000..57d6ce692600
--- /dev/null
+++ b/packages/documentsearch/test/searchmodel.spec.ts
@@ -0,0 +1,175 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+import {
+  GenericSearchProvider,
+  SearchDocumentModel
+} from '@jupyterlab/documentsearch';
+import { Widget } from '@lumino/widgets';
+import { PromiseDelegate } from '@lumino/coreutils';
+import { signalToPromise } from '@jupyterlab/testing';
+
+class LogSearchProvider extends GenericSearchProvider {
+  private _queryReceived: PromiseDelegate<RegExp | null>;
+  private _initialQuery: string = 'unset';
+
+  constructor(widget: Widget) {
+    super(widget);
+    this._queryReceived = new PromiseDelegate();
+  }
+  get queryReceived(): Promise<RegExp | null> {
+    return this._queryReceived.promise;
+  }
+
+  async startQuery(query: RegExp | null, filters = {}): Promise<void> {
+    this._queryReceived.resolve(query);
+    this._queryReceived = new PromiseDelegate();
+  }
+
+  set initialQuery(query: string) {
+    this._initialQuery = query;
+  }
+
+  getInitialQuery() {
+    return this._initialQuery;
+  }
+}
+
+describe('documentsearch/searchmodel', () => {
+  describe('SearchDocumentModel', () => {
+    let provider: LogSearchProvider;
+    let widget: Widget;
+    let model: SearchDocumentModel;
+
+    beforeEach(() => {
+      widget = new Widget();
+      provider = new LogSearchProvider(widget);
+      model = new SearchDocumentModel(provider, 0);
+    });
+
+    afterEach(async () => {
+      widget.dispose();
+    });
+
+    describe('#searchExpression', () => {
+      it('should notify provider of new query when set', async () => {
+        model.searchExpression = 'query';
+        expect(model.searchExpression).toEqual('query');
+        const query = (await provider.queryReceived)!;
+        expect(query.test('query')).toEqual(true);
+        query.lastIndex = 0;
+        expect(query.test('test')).toEqual(false);
+        query.lastIndex = 0;
+      });
+    });
+
+    describe('#parsingError', () => {
+      it('should set informative string message on invalid regex', async () => {
+        model.useRegex = true;
+        expect(model.parsingError).toEqual('');
+        model.searchExpression = 'query\\';
+        await signalToPromise(model.stateChanged);
+        expect(model.parsingError).toEqual(
+          'SyntaxError: Invalid regular expression: /query\\/: \\ at end of pattern'
+        );
+      });
+    });
+
+    describe('#suggestedInitialQuery', () => {
+      it('should return inital query from provider', () => {
+        expect(model.suggestedInitialQuery).toEqual('unset');
+        provider.initialQuery = 'provider-set-query';
+        expect(model.suggestedInitialQuery).toEqual('provider-set-query');
+      });
+    });
+
+    describe('#initialQuery', () => {
+      it('should set/get inital non-empty query', () => {
+        model.initialQuery = 'externally-set-query';
+        expect(model.initialQuery).toEqual('externally-set-query');
+      });
+      it('should fallback to previous search expression on empty value in setter', () => {
+        model.searchExpression = 'search-expression';
+        model.initialQuery = '';
+        expect(model.initialQuery).toEqual('search-expression');
+      });
+      it('should remember last query', async () => {
+        model.initialQuery = 'query';
+        expect(model.initialQuery).toEqual('query');
+        await model.endQuery();
+        expect(model.initialQuery).toEqual('query');
+      });
+    });
+
+    describe('#caseSensitive', () => {
+      it('should start a case-sensitive query', async () => {
+        model.searchExpression = 'query';
+        model.caseSensitive = true;
+        expect(model.caseSensitive).toEqual(true);
+        let query = (await provider.queryReceived)!;
+        expect(query.test('query')).toEqual(true);
+        query.lastIndex = 0;
+        expect(query.test('QUERY')).toEqual(false);
+        query.lastIndex = 0;
+
+        model.caseSensitive = false;
+        expect(model.caseSensitive).toEqual(false);
+        query = (await provider.queryReceived)!;
+        expect(query.test('query')).toEqual(true);
+        query.lastIndex = 0;
+        expect(query.test('QUERY')).toEqual(true);
+        query.lastIndex = 0;
+      });
+    });
+
+    describe('#wholeWords', () => {
+      it('should start a whole-words query', async () => {
+        model.searchExpression = 'query';
+        model.wholeWords = true;
+        expect(model.wholeWords).toEqual(true);
+        let query = (await provider.queryReceived)!;
+        expect(query.test(' query ')).toEqual(true);
+        query.lastIndex = 0;
+        expect(query.test('XqueryX')).toEqual(false);
+        query.lastIndex = 0;
+
+        model.wholeWords = false;
+        expect(model.wholeWords).toEqual(false);
+        query = (await provider.queryReceived)!;
+        expect(query.test(' query ')).toEqual(true);
+        query.lastIndex = 0;
+        expect(query.test('XqueryX')).toEqual(true);
+        query.lastIndex = 0;
+      });
+    });
+
+    describe('#replaceText', () => {
+      it('defaults to empty string', () => {
+        expect(model.replaceText).toEqual('');
+      });
+
+      it('changes after assignment with setter', () => {
+        model.replaceText = 'test';
+        expect(model.replaceText).toEqual('test');
+      });
+
+      it('emits `stateChanged` signal on assignment', () => {
+        let emitted = false;
+        model.stateChanged.connect(() => {
+          emitted = true;
+        });
+        model.replaceText = 'test';
+        expect(emitted).toEqual(true);
+      });
+
+      it('does not emit `stateChanged` signal if value has not changed', () => {
+        let emitted = 0;
+        model.stateChanged.connect(() => {
+          emitted += 1;
+        });
+        model.replaceText = '1';
+        model.replaceText = '1';
+        expect(emitted).toEqual(1);
+      });
+    });
+  });
+});
diff --git a/packages/documentsearch/tsconfig.json b/packages/documentsearch/tsconfig.json
index f57ca7471d20..0ad7b1a2a782 100644
--- a/packages/documentsearch/tsconfig.json
+++ b/packages/documentsearch/tsconfig.json
@@ -9,21 +9,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
     {
       "path": "../translation"
     },
diff --git a/packages/documentsearch/tsconfig.test.json b/packages/documentsearch/tsconfig.test.json
index e78a2b096c30..14724d551ee4 100644
--- a/packages/documentsearch/tsconfig.test.json
+++ b/packages/documentsearch/tsconfig.test.json
@@ -5,21 +5,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
     {
       "path": "../translation"
     },
@@ -30,31 +15,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/extensionmanager-extension/examples/listings/Makefile b/packages/extensionmanager-extension/examples/listings/Makefile
index 44638b3f4eb6..de5da55e147e 100644
--- a/packages/extensionmanager-extension/examples/listings/Makefile
+++ b/packages/extensionmanager-extension/examples/listings/Makefile
@@ -1,6 +1,9 @@
-export BLOCKED_EXTENSIONS_URIS="https://raw.githubusercontent.com/datalayer-jupyterlab/jupyterlab-listings-example/master/blockedExtensions_simple.json"
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+export BLOCKED_EXTENSIONS_URIS="https://raw.githubusercontent.com/jupyterlab/jupyterlab/main/packages/extensionmanager-extension/examples/listings/list/blocked_extensions.json"
 # export BLOCKED_EXTENSIONS_URIS=""
-# export ALLOWED_EXTENSIONS_URIS="https://raw.githubusercontent.com/datalayer-jupyterlab/jupyterlab-listings-example/master/allowedExtensions_only_jlab.json"
+# export ALLOWED_EXTENSIONS_URIS="https://raw.githubusercontent.com/jupyterlab/jupyterlab/main/packages/extensionmanager-extension/examples/listings/list/allowed_extensions.json"
 export ALLOWED_EXTENSIONS_URIS=""
 export LISTINGS_REFRESH_SECONDS=120
 export LISTINGS_REQUEST_OPTS="{'timeout': 10}"
diff --git a/packages/extensionmanager-extension/examples/listings/index.js b/packages/extensionmanager-extension/examples/listings/index.js
index 9d05d78fa734..7bafe5ec277a 100644
--- a/packages/extensionmanager-extension/examples/listings/index.js
+++ b/packages/extensionmanager-extension/examples/listings/index.js
@@ -29,7 +29,7 @@ window.addEventListener('load', async function () {
     require('@jupyterlab/launcher-extension'),
     require('@jupyterlab/mainmenu-extension'),
     require('@jupyterlab/markdownviewer-extension'),
-    require('@jupyterlab/mathjax2-extension'),
+    require('@jupyterlab/mathjax-extension'),
     require('@jupyterlab/notebook-extension'),
     require('@jupyterlab/rendermime-extension'),
     require('@jupyterlab/running-extension'),
diff --git a/packages/extensionmanager-extension/examples/listings/main.py b/packages/extensionmanager-extension/examples/listings/main.py
index 97f4c5d9868a..0eb3ff912f15 100644
--- a/packages/extensionmanager-extension/examples/listings/main.py
+++ b/packages/extensionmanager-extension/examples/listings/main.py
@@ -7,14 +7,13 @@
 
 os.environ["JUPYTERLAB_SETTINGS_DIR"] = str(os.path.join(HERE, "settings"))
 
-import json
+import json  # noqa
 
-from jupyterlab_server import LabConfig, LabServerApp
-from notebook.base.handlers import FileFindHandler, IPythonHandler
-from notebook.utils import url_path_join as ujoin
-from traitlets import Unicode
+from jupyter_server.base.handlers import FileFindHandler  # noqa
+from jupyter_server.utils import url_path_join as ujoin  # noqa
+from traitlets import Unicode  # noqa
 
-from jupyterlab.labapp import LabApp
+from jupyterlab.labapp import LabApp  # noqa
 
 with open(os.path.join(HERE, "package.json")) as fid:
     version = json.load(fid)["version"]
diff --git a/packages/extensionmanager-extension/examples/listings/package.json b/packages/extensionmanager-extension/examples/listings/package.json
index c7e3b09207f8..47e6cbd8b851 100644
--- a/packages/extensionmanager-extension/examples/listings/package.json
+++ b/packages/extensionmanager-extension/examples/listings/package.json
@@ -26,7 +26,7 @@
     "@jupyterlab/launcher-extension": "^2.0.2",
     "@jupyterlab/mainmenu-extension": "^2.0.2",
     "@jupyterlab/markdownviewer-extension": "^2.0.2",
-    "@jupyterlab/mathjax2-extension": "^2.0.2",
+    "@jupyterlab/mathjax-extension": "^2.0.2",
     "@jupyterlab/notebook-extension": "^2.0.2",
     "@jupyterlab/rendermime-extension": "^2.0.2",
     "@jupyterlab/running-extension": "^2.0.2",
@@ -38,25 +38,19 @@
     "@jupyterlab/theme-light-extension": "^2.0.2",
     "@jupyterlab/tooltip-extension": "^2.0.2",
     "@jupyterlab/ui-components-extension": "^2.0.2",
-    "es6-promise": "~4.2.8",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1"
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "fs-extra": "^9.0.1",
+    "css-loader": "^6.7.1",
+    "fs-extra": "^10.1.0",
     "glob": "~7.1.6",
-    "mini-css-extract-plugin": "~1.3.2",
-    "raw-loader": "~4.0.0",
-    "read-package-tree": "^5.3.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "svg-url-loader": "~6.0.0",
-    "url-loader": "~4.1.0",
-    "watch": "~1.0.2",
-    "webpack": "^4.41.2",
-    "webpack-cli": "^4.1.0",
+    "style-loader": "~3.3.1",
+    "webpack": "^5.72.0",
+    "webpack-cli": "^5.0.0",
     "whatwg-fetch": "^3.0.0"
   }
 }
diff --git a/packages/extensionmanager-extension/examples/listings/settings/@jupyterlab/extensionmanager-extension/plugin.jupyterlab-settings b/packages/extensionmanager-extension/examples/listings/settings/@jupyterlab/extensionmanager-extension/plugin.jupyterlab-settings
index c325add17d54..290b21560371 100644
--- a/packages/extensionmanager-extension/examples/listings/settings/@jupyterlab/extensionmanager-extension/plugin.jupyterlab-settings
+++ b/packages/extensionmanager-extension/examples/listings/settings/@jupyterlab/extensionmanager-extension/plugin.jupyterlab-settings
@@ -12,4 +12,4 @@
     // Enables extension manager (requires Node.js/npm).
     // WARNING: installing untrusted extensions may be unsafe.
     "enabled": true
-}
\ No newline at end of file
+}
diff --git a/packages/extensionmanager-extension/examples/listings/templates/index.html b/packages/extensionmanager-extension/examples/listings/templates/index.html
index 78301d684f70..11d8f23ef7a2 100644
--- a/packages/extensionmanager-extension/examples/listings/templates/index.html
+++ b/packages/extensionmanager-extension/examples/listings/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
diff --git a/packages/extensionmanager-extension/examples/listings/webpack.config.js b/packages/extensionmanager-extension/examples/listings/webpack.config.js
index 02405a39b8a4..cbc53b5e1245 100644
--- a/packages/extensionmanager-extension/examples/listings/webpack.config.js
+++ b/packages/extensionmanager-extension/examples/listings/webpack.config.js
@@ -1,20 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-var data = require('./package.json');
-var Build = require('@jupyterlab/builder').Build;
-const crypto = require('crypto');
+const data = require('./package.json');
+const Build = require('@jupyterlab/builder').Build;
+const miniSVGDataURI = require('mini-svg-data-uri');
 
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
-
-var names = Object.keys(data.dependencies).filter(function (name) {
-  var packageData = require(name + '/package.json');
+const names = Object.keys(data.dependencies).filter(function (name) {
+  const packageData = require(name + '/package.json');
   return packageData.jupyterlab !== undefined;
 });
 
-var extras = Build.ensureAssets({
+const extras = Build.ensureAssets({
   packageNames: names,
   output: './build'
 });
@@ -24,8 +19,7 @@ module.exports = [
     entry: ['whatwg-fetch', './index.js'],
     output: {
       path: __dirname + '/build',
-      filename: 'bundle.js',
-      hashFunction: 'sha256'
+      filename: 'bundle.js'
     },
     // node: {
     //   fs: 'empty'
@@ -36,30 +30,30 @@ module.exports = [
     module: {
       rules: [
         { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-        { test: /\.html$/, use: 'file-loader' },
-        { test: /\.md$/, use: 'raw-loader' },
-        { test: /\.(jpg|png|gif)$/, use: 'file-loader' },
-        { test: /\.js.map$/, use: 'file-loader' },
+        { test: /\.html$/, type: 'asset/resource' },
+        { test: /\.md$/, type: 'asset/source' },
+        { test: /\.(jpg|png|gif)$/, type: 'asset/resource' },
+        { test: /\.js.map$/, type: 'asset/resource' },
         {
           test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/font-woff'
+          type: 'asset'
         },
         {
           test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/font-woff'
+          type: 'asset'
         },
         {
           test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
-          use: 'url-loader?limit=10000&mimetype=application/octet-stream'
+          type: 'asset'
         },
-        { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, use: 'file-loader' },
+        { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, type: 'asset/resource' },
         {
           // In .css files, svg is loaded as a data URI.
           test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
           issuer: /\.css$/,
-          use: {
-            loader: 'svg-url-loader',
-            options: { encoding: 'none', limit: 10000 }
+          type: 'asset',
+          generator: {
+            dataUrl: content => miniSVGDataURI(content.toString())
           }
         },
         {
@@ -67,9 +61,7 @@ module.exports = [
           // must be loaded as a raw string instead of data URIs.
           test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
           issuer: /\.js$/,
-          use: {
-            loader: 'raw-loader'
-          }
+          type: 'asset/resource'
         }
       ]
     }
diff --git a/packages/extensionmanager-extension/package.json b/packages/extensionmanager-extension/package.json
index 53ab07de0531..ca845bccadb4 100644
--- a/packages/extensionmanager-extension/package.json
+++ b/packages/extensionmanager-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/extensionmanager-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Extension Manager Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -29,7 +29,8 @@
     "schema/*.json",
     "listing/*.json",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -38,17 +39,17 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/extensionmanager": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/extensionmanager": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/extensionmanager-extension/schema/plugin.json b/packages/extensionmanager-extension/schema/plugin.json
index 023a044758ee..670b9af9c799 100644
--- a/packages/extensionmanager-extension/schema/plugin.json
+++ b/packages/extensionmanager-extension/schema/plugin.json
@@ -1,8 +1,19 @@
 {
+  "title": "Extension Manager",
+  "description": "Extension manager settings.",
   "jupyter.lab.setting-icon": "ui-components:extension",
   "jupyter.lab.setting-icon-label": "Extension Manager",
   "jupyter.lab.menus": {
     "main": [
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "command": "extensionmanager:show-panel",
+            "rank": 9
+          }
+        ]
+      },
       {
         "id": "jp-mainmenu-settings",
         "items": [
@@ -22,12 +33,17 @@
       }
     ]
   },
-  "title": "Extension Manager",
-  "description": "Extension manager settings.",
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "extensionmanager:show-panel",
+      "keys": ["Accel Shift X"],
+      "selector": "body"
+    }
+  ],
   "properties": {
     "enabled": {
       "title": "Enabled Status",
-      "description": "Enables extension manager (requires Node.js/npm).\nWARNING: installing untrusted extensions may be unsafe.",
+      "description": "Enables extension manager.\nWARNING: installing untrusted extensions may be unsafe.",
       "default": true,
       "type": "boolean"
     },
@@ -36,24 +52,6 @@
       "description": "Whether the user agrees the access to external web services and understands extensions may introduce security risks or contain malicious code that runs on his machine.",
       "default": false,
       "type": "boolean"
-    },
-    "npmRegistry": {
-      "title": "NPM Registry",
-      "description": "The URI of the NPM registry to use for searching for jupyterlab extensions",
-      "default": "https://registry.npmjs.org/-/v1/",
-      "type": "string"
-    },
-    "npmCdn": {
-      "title": "NPM Content Delivery Network (CDN)",
-      "description": "The URI of the Content Delivery Network (CDN) to use for fetching full package data",
-      "default": "https://unpkg.com",
-      "type": "string"
-    },
-    "enableCdn": {
-      "title": "Enable Content Delivery Network (CDN)",
-      "description": "Enables using the Content Delivery Network (CDN) to fetch full package data.  Otherwise, the configured NPM registry will be used. Due to a lack of CORS support by NPM registry, only disable if supplying a custom registry",
-      "default": true,
-      "type": "boolean"
     }
   },
   "additionalProperties": false,
diff --git a/packages/extensionmanager-extension/src/index.ts b/packages/extensionmanager-extension/src/index.ts
index 4347c4c31a03..282e314276c6 100644
--- a/packages/extensionmanager-extension/src/index.ts
+++ b/packages/extensionmanager-extension/src/index.ts
@@ -6,15 +6,18 @@
  */
 
 import {
-  ILabShell,
   ILayoutRestorer,
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import { Dialog, ICommandPalette, showDialog } from '@jupyterlab/apputils';
-import { ExtensionView } from '@jupyterlab/extensionmanager';
+import { ExtensionsPanel, ListModel } from '@jupyterlab/extensionmanager';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
 import { extensionIcon } from '@jupyterlab/ui-components';
 
 const PLUGIN_ID = '@jupyterlab/extensionmanager-extension:plugin';
@@ -23,6 +26,7 @@ const PLUGIN_ID = '@jupyterlab/extensionmanager-extension:plugin';
  * IDs of the commands added by this extension.
  */
 namespace CommandIDs {
+  export const showPanel = 'extensionmanager:show-panel';
   export const toggle = 'extensionmanager:toggle';
 }
 
@@ -31,69 +35,89 @@ namespace CommandIDs {
  */
 const plugin: JupyterFrontEndPlugin<void> = {
   id: PLUGIN_ID,
+  description: 'Adds the extension manager plugin.',
   autoStart: true,
-  requires: [ISettingRegistry, ITranslator],
-  optional: [ILabShell, ILayoutRestorer, ICommandPalette],
+  requires: [ISettingRegistry],
+  optional: [ITranslator, ILayoutRestorer, ICommandPalette],
   activate: async (
     app: JupyterFrontEnd,
     registry: ISettingRegistry,
-    translator: ITranslator,
-    labShell: ILabShell | null,
+    translator: ITranslator | null,
     restorer: ILayoutRestorer | null,
     palette: ICommandPalette | null
   ) => {
+    const { commands, shell, serviceManager } = app;
+    translator = translator ?? nullTranslator;
     const trans = translator.load('jupyterlab');
-    const settings = await registry.load(plugin.id);
-    let enabled = settings.composite['enabled'] === true;
 
-    const { commands, serviceManager } = app;
-    let view: ExtensionView | undefined;
+    const model = new ListModel(serviceManager, translator);
 
     const createView = () => {
-      const v = new ExtensionView(app, serviceManager, settings, translator);
+      const v = new ExtensionsPanel({ model, translator: translator! });
       v.id = 'extensionmanager.main-view';
       v.title.icon = extensionIcon;
       v.title.caption = trans.__('Extension Manager');
+      v.node.setAttribute('role', 'region');
+      v.node.setAttribute('aria-label', trans.__('Extension Manager section'));
       if (restorer) {
         restorer.add(v, v.id);
       }
+      shell.add(v, 'left', { rank: 1000 });
+
       return v;
     };
 
-    if (enabled && labShell) {
-      view = createView();
-      view.node.setAttribute('role', 'region');
-      view.node.setAttribute(
-        'aria-label',
-        trans.__('Extension Manager section')
-      );
-      labShell.add(view, 'left', { rank: 1000 });
-    }
+    // Create a view by default, so it can be restored when loading the workspace.
+    let view: ExtensionsPanel | null = createView();
 
     // If the extension is enabled or disabled,
     // add or remove it from the left area.
     Promise.all([app.restored, registry.load(PLUGIN_ID)])
       .then(([, settings]) => {
+        model.isDisclaimed = settings.get('disclaimed').composite as boolean;
+        model.isEnabled = settings.get('enabled').composite as boolean;
+        model.stateChanged.connect(() => {
+          if (
+            model.isDisclaimed !==
+            (settings.get('disclaimed').composite as boolean)
+          ) {
+            settings.set('disclaimed', model.isDisclaimed).catch(reason => {
+              console.error(`Failed to set setting 'disclaimed'.\n${reason}`);
+            });
+          }
+          if (
+            model.isEnabled !== (settings.get('enabled').composite as boolean)
+          ) {
+            settings.set('enabled', model.isEnabled).catch(reason => {
+              console.error(`Failed to set setting 'enabled'.\n${reason}`);
+            });
+          }
+        });
+
+        if (model.isEnabled) {
+          view = view ?? createView();
+        } else {
+          view?.dispose();
+          view = null;
+        }
+
         settings.changed.connect(async () => {
-          enabled = settings.composite['enabled'] === true;
-          if (enabled && !view?.isAttached) {
-            const accepted = await Private.showWarning(trans);
-            if (!accepted) {
-              void settings.set('enabled', false);
-              return;
-            }
-            view = view || createView();
-            view.node.setAttribute('role', 'region');
-            view.node.setAttribute(
-              'aria-label',
-              trans.__('Extension Manager section')
-            );
-            if (labShell) {
-              labShell.add(view, 'left', { rank: 1000 });
+          model.isDisclaimed = settings.get('disclaimed').composite as boolean;
+          model.isEnabled = settings.get('enabled').composite as boolean;
+          app.commands.notifyCommandChanged(CommandIDs.toggle);
+
+          if (model.isEnabled) {
+            if (view === null || !view.isAttached) {
+              const accepted = await Private.showWarning(trans);
+              if (!accepted) {
+                void settings.set('enabled', false);
+                return;
+              }
             }
-          } else if (!enabled && view?.isAttached) {
-            app.commands.notifyCommandChanged(CommandIDs.toggle);
-            view.close();
+            view = view ?? createView();
+          } else {
+            view?.dispose();
+            view = null;
           }
         });
       })
@@ -103,21 +127,31 @@ const plugin: JupyterFrontEndPlugin<void> = {
         );
       });
 
+    commands.addCommand(CommandIDs.showPanel, {
+      label: trans.__('Extension Manager'),
+      execute: () => {
+        if (view) {
+          shell.activateById(view.id);
+        }
+      },
+      isVisible: () => model.isEnabled
+    });
+
     commands.addCommand(CommandIDs.toggle, {
       label: trans.__('Enable Extension Manager'),
       execute: () => {
         if (registry) {
-          void registry.set(plugin.id, 'enabled', !enabled);
+          void registry.set(plugin.id, 'enabled', !model.isEnabled);
         }
       },
-      isToggled: () => enabled,
-      isEnabled: () => serviceManager.builder.isAvailable
+      isToggled: () => model.isEnabled
     });
 
-    const category = trans.__('Extension Manager');
-    const command = CommandIDs.toggle;
     if (palette) {
-      palette.addItem({ command, category });
+      palette.addItem({
+        command: CommandIDs.toggle,
+        category: trans.__('Extension Manager')
+      });
     }
   }
 };
@@ -139,7 +173,7 @@ namespace Private {
   export async function showWarning(
     trans: TranslationBundle
   ): Promise<boolean> {
-    return showDialog({
+    const result = await showDialog({
       title: trans.__('Enable Extension Manager?'),
       body: trans.__(`Thanks for trying out JupyterLab's extension manager.
 The JupyterLab development team is excited to have a robust
@@ -151,8 +185,8 @@ Do you want to continue?`),
         Dialog.cancelButton({ label: trans.__('Disable') }),
         Dialog.warnButton({ label: trans.__('Enable') })
       ]
-    }).then(result => {
-      return result.button.accept;
     });
+
+    return result.button.accept;
   }
 }
diff --git a/packages/extensionmanager/package.json b/packages/extensionmanager/package.json
index a991a3f70eee..75eed59261f9 100644
--- a/packages/extensionmanager/package.json
+++ b/packages/extensionmanager/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/extensionmanager",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Extension Manager",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,26 +37,26 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "react": "^17.0.1",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0",
     "react-paginate": "^6.3.2",
     "semver": "^7.3.2"
   },
   "devDependencies": {
+    "@types/react": "^18.0.26",
     "@types/react-paginate": "^6.2.1",
     "@types/semver": "^7.3.3",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/extensionmanager/src/build-helper.tsx b/packages/extensionmanager/src/build-helper.tsx
deleted file mode 100644
index bf4dfed0c652..000000000000
--- a/packages/extensionmanager/src/build-helper.tsx
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { JupyterFrontEnd } from '@jupyterlab/application';
-import { Dialog, showDialog, showErrorMessage } from '@jupyterlab/apputils';
-import { Builder } from '@jupyterlab/services';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import * as React from 'react';
-
-/**
- * Instruct the server to perform a build
- *
- * @param builder the build manager
- */
-export function doBuild(
-  app: JupyterFrontEnd,
-  builder: Builder.IManager,
-  translator?: ITranslator
-): Promise<void> {
-  translator = translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  if (builder.isAvailable) {
-    return builder
-      .build()
-      .then(() => {
-        return showDialog({
-          title: trans.__('Build Complete'),
-          body: (
-            <div>
-              {trans.__('Build successfully completed, reload page?')}
-              <br />
-              {trans.__('You will lose any unsaved changes.')}
-            </div>
-          ),
-          buttons: [
-            Dialog.cancelButton({
-              label: trans.__('Reload Without Saving'),
-              actions: ['reload']
-            }),
-            Dialog.okButton({ label: trans.__('Save and Reload') })
-          ],
-          hasClose: true
-        });
-      })
-      .then(({ button: { accept, actions } }) => {
-        if (accept) {
-          void app.commands
-            .execute('docmanager:save')
-            .then(() => {
-              location.reload();
-            })
-            .catch((err: any) => {
-              void showErrorMessage(trans.__('Save Failed'), {
-                message: <pre>{err.message}</pre>
-              });
-            });
-        } else if (actions.includes('reload')) {
-          location.reload();
-        }
-      })
-      .catch(err => {
-        void showDialog({
-          title: trans.__('Build Failed'),
-          body: <pre>{err.message}</pre>
-        });
-      });
-  }
-  return Promise.resolve();
-}
diff --git a/packages/extensionmanager/src/companions.tsx b/packages/extensionmanager/src/companions.tsx
deleted file mode 100644
index d6c53cd04104..000000000000
--- a/packages/extensionmanager/src/companions.tsx
+++ /dev/null
@@ -1,225 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Dialog, showDialog } from '@jupyterlab/apputils';
-import { KernelSpec } from '@jupyterlab/services';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import * as React from 'react';
-
-/**
- * An object representing a companion installation info.
- */
-export interface IInstallInfoEntry {
-  /**
-   * The name of the companion package/module.
-   */
-  name?: string;
-
-  /**
-   * Whether the package also includes the lab extension.
-   */
-  bundles_extension?: boolean;
-}
-
-/**
- * An object representing a server extension install info.
- */
-export interface IInstallInfo {
-  /**
-   * The base/default install info.
-   */
-  base: IInstallInfoEntry;
-
-  /**
-   * Which package managers that have the package/module.
-   */
-  managers: string[];
-
-  /**
-   * Overrides of the base install info on a per-manager basis.
-   */
-  overrides?: { [key: string]: IInstallInfoEntry | undefined };
-}
-
-/**
- * An object representing a kernel companion install info.
- */
-export interface IKernelInstallInfo extends IInstallInfo {
-  /**
-   * A specification of which kernels the current install info applies to.
-   */
-  kernel_spec: {
-    /**
-     * A regular expression for matching kernel language.
-     */
-    language: string;
-
-    /**
-     * A regular expression for matching kernel display name.
-     */
-    display_name?: string;
-  };
-}
-
-/**
- * An object combining a kernel companion install info with matching specs.
- */
-export type KernelCompanion = {
-  /**
-   * The kernel companion install info.
-   */
-  kernelInfo: IKernelInstallInfo;
-
-  /**
-   * The kernels that match the install info.
-   */
-  kernels: KernelSpec.ISpecModel[];
-};
-
-/**
- * An object representing the companion discovery metadata in package.json.
- */
-export interface IJupyterLabPackageData {
-  jupyterlab?: {
-    discovery?: {
-      /**
-       * Information about any server extension companions.
-       */
-      server?: IInstallInfo;
-
-      /**
-       * Information about any kernel companions.
-       */
-      kernel?: IKernelInstallInfo[];
-    };
-  };
-}
-
-// Mapping of manager name to function that take name and gives command
-const managerCommand: { [key: string]: (name: string) => string } = {
-  pip: name => `pip install ${name}`,
-  conda: name => `conda install -c conda-forge ${name}`
-};
-
-function getInstallCommands(info: IInstallInfo) {
-  const commands = Array<string>();
-  for (const manager of info.managers) {
-    const name = info.overrides?.[manager]?.name ?? info.base.name;
-    if (!name) {
-      console.warn(`No package name found for manager ${manager}`);
-      continue;
-    }
-    const command = managerCommand[manager]?.(name);
-    if (!command) {
-      console.warn(`Don't know how to install packages for manager ${manager}`);
-    }
-    commands.push(command);
-  }
-  return commands;
-}
-
-/**
- * Prompt the user what do about companion packages, if present.
- *
- * @param builder the build manager
- */
-export function presentCompanions(
-  kernelCompanions: KernelCompanion[],
-  serverCompanion: IInstallInfo | undefined,
-  translator?: ITranslator
-): Promise<boolean> {
-  translator = translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  const entries = [];
-  if (serverCompanion) {
-    entries.push(
-      <p key="server-companion">
-        {trans.__(`This package has indicated that it needs a corresponding server
-extension. Please contact your Administrator to update the server with
-one of the following commands:`)}
-        {getInstallCommands(serverCompanion).map(command => {
-          return (
-            <p key={command}>
-              <code>{command}</code>
-            </p>
-          );
-        })}
-      </p>
-    );
-  }
-  if (kernelCompanions.length > 0) {
-    entries.push(
-      <p key={'kernel-companion'}>
-        {trans.__(
-          'This package has indicated that it needs a corresponding package for the kernel.'
-        )}
-      </p>
-    );
-    for (const [index, entry] of kernelCompanions.entries()) {
-      entries.push(
-        <p key={`companion-${index}`}>
-          {trans.__(
-            `The package <code>%1</code>, is required by the following kernels:`,
-            entry.kernelInfo.base.name!
-          )}
-        </p>
-      );
-      const kernelEntries = [];
-      for (const [index, kernel] of entry.kernels.entries()) {
-        kernelEntries.push(
-          <li key={`kernels-${index}`}>
-            <code>{kernel.display_name}</code>
-          </li>
-        );
-      }
-      entries.push(<ul key={'kernel-companion-end'}>{kernelEntries}</ul>);
-      entries.push(
-        <p key={`kernel-companion-${index}`}>
-          {trans.__(`This package has indicated that it needs a corresponding kernel
-package. Please contact your Administrator to update the server with
-one of the following commands:`)}
-          {getInstallCommands(entry.kernelInfo).map(command => {
-            return (
-              <p key={command}>
-                <code>{command}</code>
-              </p>
-            );
-          })}
-        </p>
-      );
-    }
-  }
-  const body = (
-    <div>
-      {entries}
-      <p>
-        {trans.__(`You should make sure that the indicated packages are installed before
-trying to use the extension. Do you want to continue with the extension
-installation?`)}
-      </p>
-    </div>
-  );
-  const hasKernelCompanions = kernelCompanions.length > 0;
-  const hasServerCompanion = !!serverCompanion;
-  let title = '';
-  if (hasKernelCompanions && hasServerCompanion) {
-    title = trans.__('Kernel and Server Companions');
-  } else if (hasKernelCompanions) {
-    title = trans.__('Kernel Companions');
-  } else {
-    title = trans.__('Server Companion');
-  }
-  return showDialog({
-    title,
-    body,
-    buttons: [
-      Dialog.cancelButton({ label: trans.__('Cancel') }),
-      Dialog.okButton({
-        label: trans.__('OK'),
-        caption: trans.__('Install the JupyterLab extension.')
-      })
-    ]
-  }).then(result => {
-    return result.button.accept;
-  });
-}
diff --git a/packages/extensionmanager/src/dialog.tsx b/packages/extensionmanager/src/dialog.tsx
index 8f68c9cfd3aa..25ba094aaeaa 100644
--- a/packages/extensionmanager/src/dialog.tsx
+++ b/packages/extensionmanager/src/dialog.tsx
@@ -15,13 +15,11 @@ export function reportInstallError(
   name: string,
   errorMessage?: string,
   translator?: ITranslator
-) {
+): void {
   translator = translator || nullTranslator;
   const trans = translator.load('jupyterlab');
   const entries = [];
-  entries.push(
-    <p>{trans.__('An error occurred installing <code>%1</code>.', name)}</p>
-  );
+  entries.push(<p>{trans.__(`An error occurred installing "${name}".`)}</p>);
   if (errorMessage) {
     entries.push(
       <p>
@@ -36,6 +34,6 @@ export function reportInstallError(
   void showDialog({
     title: trans.__('Extension Installation Error'),
     body,
-    buttons: [Dialog.warnButton({ label: trans.__('OK') })]
+    buttons: [Dialog.warnButton({ label: trans.__('Ok') })]
   });
 }
diff --git a/packages/extensionmanager/src/index.ts b/packages/extensionmanager/src/index.ts
index 4bf54d0d52a4..900f15cf92f0 100644
--- a/packages/extensionmanager/src/index.ts
+++ b/packages/extensionmanager/src/index.ts
@@ -6,6 +6,4 @@
  */
 
 export * from './model';
-export * from './npm';
-export * from './listings';
 export * from './widget';
diff --git a/packages/extensionmanager/src/listings.ts b/packages/extensionmanager/src/listings.ts
deleted file mode 100644
index 65447eee5e3a..000000000000
--- a/packages/extensionmanager/src/listings.ts
+++ /dev/null
@@ -1,137 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { URLExt } from '@jupyterlab/coreutils';
-import { ServerConnection } from '@jupyterlab/services';
-import { ISignal, Signal } from '@lumino/signaling';
-
-/** *
- * Information about a listed entry.
- */
-export interface IListEntry {
-  /**
-   * The name of the extension.
-   */
-  name: string;
-  regexp: RegExp | undefined;
-  type: string | undefined;
-  reason: string | undefined;
-  creation_date: string | undefined;
-  last_update_date: string | undefined;
-}
-
-/**
- * Listing search result type.
- *
- * - The mode for the listings, can be black or white.
- * - A collection of URIs for black or white listings, depending
- * on the mode.
- * - A collection of black or white listed extensions, depending
- * on the mode.
- *
- */
-export type ListResult = null | {
-  mode: 'block' | 'allow' | 'default' | 'invalid';
-  uris: string[];
-  entries: IListEntry[];
-};
-
-export interface IListingApi {
-  blocked_extensions_uris: string[];
-  allowed_extensions_uris: string[];
-  blocked_extensions: IListEntry[];
-  allowed_extensions: IListEntry[];
-}
-
-/**
- * An object for getting listings from the server API.
- */
-export class Lister {
-  /**
-   * Create a Lister object.
-   */
-  constructor() {
-    requestAPI<IListingApi>(
-      '@jupyterlab/extensionmanager-extension/listings.json'
-    )
-      .then(data => {
-        this._listings = {
-          mode: 'default',
-          uris: [],
-          entries: []
-        };
-        if (
-          data.blocked_extensions_uris.length > 0 &&
-          data.allowed_extensions_uris.length > 0
-        ) {
-          console.warn('Simultaneous black and white list are not allowed.');
-          this._listings = {
-            mode: 'invalid',
-            uris: [],
-            entries: []
-          };
-        } else if (
-          data.blocked_extensions_uris.length > 0 ||
-          data.allowed_extensions_uris.length > 0
-        ) {
-          this._listings = {
-            mode: data.blocked_extensions_uris.length > 0 ? 'block' : 'allow',
-            uris:
-              data.blocked_extensions_uris.length > 0
-                ? data.blocked_extensions_uris
-                : data.allowed_extensions_uris,
-            entries:
-              data.blocked_extensions_uris.length > 0
-                ? data.blocked_extensions
-                : data.allowed_extensions
-          };
-        }
-        this._listingsLoaded.emit(this._listings);
-      })
-      .catch(error => {
-        console.error(error);
-      });
-  }
-
-  get listingsLoaded(): ISignal<this, ListResult> {
-    return this._listingsLoaded;
-  }
-
-  private _listings: ListResult = null;
-
-  /**
-   */
-  private _listingsLoaded = new Signal<this, ListResult>(this);
-}
-
-/**
- * Call the listings API REST handler.
- *
- * @param endPoint API REST end point for the extension
- * @param init Initial values for the request
- * @returns The response body interpreted as JSON
- */
-async function requestAPI<T>(
-  endPoint: string = '',
-  init: RequestInit = {}
-): Promise<T> {
-  // Make request to Jupyter API
-  const settings = ServerConnection.makeSettings();
-  const requestUrl = URLExt.join(
-    settings.baseUrl,
-    settings.appUrl,
-    'api/listings/',
-    endPoint
-  );
-  let response: Response;
-  try {
-    response = await ServerConnection.makeRequest(requestUrl, init, settings);
-  } catch (error) {
-    throw new ServerConnection.NetworkError(error);
-  }
-  const data = await response.json();
-  if (!response.ok) {
-    throw new ServerConnection.ResponseError(response, data.message);
-  }
-  return data;
-}
diff --git a/packages/extensionmanager/src/model.ts b/packages/extensionmanager/src/model.ts
index b11eeb252f24..640ebd02e211 100644
--- a/packages/extensionmanager/src/model.ts
+++ b/packages/extensionmanager/src/model.ts
@@ -1,26 +1,16 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterFrontEnd } from '@jupyterlab/application';
-import { VDomModel } from '@jupyterlab/apputils';
-import {
-  KernelSpec,
-  ServerConnection,
-  ServiceManager
-} from '@jupyterlab/services';
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
+/* global RequestInit */
+
+import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { PageConfig, URLExt } from '@jupyterlab/coreutils';
+import { ServerConnection, ServiceManager } from '@jupyterlab/services';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { VDomModel } from '@jupyterlab/ui-components';
 import { Debouncer } from '@lumino/polling';
 import * as semver from 'semver';
-import { doBuild } from './build-helper';
-import {
-  IKernelInstallInfo,
-  KernelCompanion,
-  presentCompanions
-} from './companions';
 import { reportInstallError } from './dialog';
-import { IListEntry, Lister, ListResult } from './listings';
-import { ISearchResult, isJupyterOrg, Searcher } from './npm';
 
 /**
  * Information about an extension.
@@ -39,22 +29,27 @@ export interface IEntry {
   /**
    * A representative link of the package.
    */
-  url: string;
+  homepage_url: string;
 
   /**
    * Whether the extension is currently installed.
    */
-  installed: boolean;
+  installed?: boolean | null;
 
   /**
-   * Whether the extension is currently enabled.
+   * Whether the extension is allowed or not.
    */
-  enabled: boolean;
+  allowed: boolean;
 
   /**
-   * A flag indicating the status of an installed extension.
+   * Whether the extension is approved by the system administrators.
    */
-  status: 'ok' | 'warning' | 'error' | 'deprecated' | null;
+  approved: boolean;
+
+  /**
+   * Whether the extension is currently enabled.
+   */
+  enabled: boolean;
 
   /**
    * The latest version of the extension.
@@ -66,9 +61,10 @@ export interface IEntry {
    */
   installed_version: string;
 
-  blockedExtensionsEntry: IListEntry | undefined;
-
-  allowedExtensionsEntry: IListEntry | undefined;
+  /**
+   * A flag indicating the status of an installed extension.
+   */
+  status: 'ok' | 'warning' | 'error' | 'deprecated' | null;
 
   /**
    * The package type (prebuilt or source).
@@ -78,89 +74,43 @@ export interface IEntry {
   /**
    * The information about extension installation.
    */
-  install: IInstall | undefined;
-}
-
-/**
- * Information about extension installation.
- */
-export interface IInstall {
-  /**
-   * The used package manager (e.g. pip, conda...)
-   */
-  packageManager: string | undefined;
-
-  /**
-   * The package name as known by the package manager.
-   */
-  packageName: string | undefined;
-
-  /**
-   * The uninstallation instructions as a comprehensive
-   * text for the end user.
-   */
-  uninstallInstructions: string | undefined;
-}
-
-/**
- * Wire format for installed extensions.
- */
-export interface IInstalledEntry {
-  /**
-   * The name of the extension.
-   */
-  name: string;
-
-  /**
-   * A short description of the extension.
-   */
-  description: string;
-
-  /**
-   * A representative link of the package.
-   */
-  url: string;
-
-  /**
-   * Whether the extension is currently installed.
-   */
-  installed?: boolean;
+  install?: IInstall | null;
 
   /**
-   * Whether the extension is currently enabled.
+   * Package author.
    */
-  enabled: boolean;
+  author?: string;
 
   /**
-   * The latest version of the extension.
+   * Package license.
    */
-  latest_version: string;
+  license?: string;
 
   /**
-   * The installed version of the extension.
+   * URL to the package bug tracker.
    */
-  installed_version: string;
+  bug_tracker_url?: string;
 
   /**
-   * A flag indicating the status of an installed extension.
+   * URL to the package documentation.
    */
-  status: 'ok' | 'warning' | 'error' | 'deprecated' | null;
+  documentation_url?: string;
 
   /**
-   * The package type (prebuilt or source).
+   * URL to the package URL in the packager website.
    */
-  pkg_type: 'prebuilt' | 'source';
+  package_manager_url?: string;
 
   /**
-   * The information about extension installation.
+   * URL to the package code source.
    */
-  install: IInstallEntry | undefined;
+  repository_url?: string;
 }
 
 /**
  * Information about extension installation.
  */
-export interface IInstallEntry {
+export interface IInstall {
   /**
    * The used package manager (e.g. pip, conda...)
    */
@@ -191,6 +141,29 @@ export interface IActionReply {
    * An optional message when the status is not 'ok'.
    */
   message?: string;
+
+  /**
+   * Follow-up restart needed by the action
+   */
+  needs_restart: ('frontend' | 'kernel' | 'server')[];
+}
+
+/**
+ * Extension manager metadata
+ */
+interface IExtensionManagerMetadata {
+  /**
+   * Extension manager name.
+   */
+  name: string;
+  /**
+   * Whether the extension manager can un-/install extensions.
+   */
+  can_install: boolean;
+  /**
+   * Extensions installation path.
+   */
+  install_path: string | null;
 }
 
 /**
@@ -208,67 +181,40 @@ export type Action = 'install' | 'uninstall' | 'enable' | 'disable';
  */
 export class ListModel extends VDomModel {
   constructor(
-    app: JupyterFrontEnd,
-    serviceManager: ServiceManager,
-    settings: ISettingRegistry.ISettings,
+    serviceManager: ServiceManager.IManager,
     translator?: ITranslator
   ) {
     super();
+
+    const metadata = JSON.parse(
+      // The page config option may not be defined; e.g. in the federated example
+      PageConfig.getOption('extensionManager') || '{}'
+    ) as IExtensionManagerMetadata;
+
+    this.name = metadata.name;
+    this.canInstall = metadata.can_install;
+    this.installPath = metadata.install_path;
     this.translator = translator || nullTranslator;
-    this._app = app;
     this._installed = [];
-    this._searchResult = [];
+    this._lastSearchResult = [];
     this.serviceManager = serviceManager;
-    this.serverConnectionSettings = ServerConnection.makeSettings();
-    this._debouncedUpdate = new Debouncer(this.update.bind(this), 1000);
-    this.lister.listingsLoaded.connect(this._listingIsLoaded, this);
-    this.searcher = new Searcher(
-      settings.composite['npmRegistry'] as string,
-      settings.composite['npmCdn'] as string,
-      settings.composite['enableCdn'] as boolean
-    );
-    _isDisclaimed = settings.composite['disclaimed'] === true;
-    settings.changed.connect(() => {
-      _isDisclaimed = settings.composite['disclaimed'] === true;
-      this.searcher = new Searcher(
-        settings.composite['npmRegistry'] as string,
-        settings.composite['npmCdn'] as string,
-        settings.composite['enableCdn'] as boolean
-      );
-      void this.update();
-    });
+    this._debouncedSearch = new Debouncer(this.search.bind(this), 1000);
   }
 
-  private _listingIsLoaded(_: Lister, listings: ListResult) {
-    this._listMode = listings!.mode;
-    this._blockedExtensionsArray = new Array<IListEntry>();
-    if (this._listMode === 'block') {
-      listings!.entries.map(e => {
-        this._blockedExtensionsArray.push({
-          name: e.name,
-          regexp: new RegExp(e.name),
-          type: e.type,
-          reason: e.reason,
-          creation_date: e.creation_date,
-          last_update_date: e.last_update_date
-        });
-      });
-    }
-    this._allowedExtensionsArray = new Array<IListEntry>();
-    if (this._listMode === 'allow') {
-      listings!.entries.map(e => {
-        this._allowedExtensionsArray.push({
-          name: e.name,
-          regexp: new RegExp(e.name),
-          type: e.type,
-          reason: e.reason,
-          creation_date: e.creation_date,
-          last_update_date: e.last_update_date
-        });
-      });
-    }
-    void this.initialize();
-  }
+  /**
+   * Extension manager name.
+   */
+  readonly name: string;
+
+  /**
+   * Whether the extension manager support installation methods or not.
+   */
+  readonly canInstall: boolean;
+
+  /**
+   * Extensions installation path.
+   */
+  installPath: string | null;
 
   /**
    * A readonly array of the installed extensions.
@@ -277,47 +223,84 @@ export class ListModel extends VDomModel {
     return this._installed;
   }
 
+  /**
+   * Whether the warning is disclaimed or not.
+   */
+  get isDisclaimed(): boolean {
+    return this._isDisclaimed;
+  }
+  set isDisclaimed(v: boolean) {
+    if (v !== this._isDisclaimed) {
+      this._isDisclaimed = v;
+      this.stateChanged.emit();
+      void this._debouncedSearch.invoke();
+    }
+  }
+
+  /**
+   * Whether the extension manager is enabled or not.
+   */
+  get isEnabled(): boolean {
+    return this._isEnabled;
+  }
+  set isEnabled(v: boolean) {
+    if (v !== this._isEnabled) {
+      this._isEnabled = v;
+      this.stateChanged.emit();
+    }
+  }
+
+  get isLoadingInstalledExtensions(): boolean {
+    return this._isLoadingInstalledExtensions;
+  }
+
+  get isSearching(): boolean {
+    return this._isSearching;
+  }
+
   /**
    * A readonly array containing the latest search result
    */
   get searchResult(): ReadonlyArray<IEntry> {
-    return this._searchResult;
+    return this._lastSearchResult;
   }
 
   /**
-   * The current NPM repository search query.
+   * The search query.
    *
    * Setting its value triggers a new search.
    */
-  get query(): string | null {
+  get query(): string {
     return this._query;
   }
-  set query(value: string | null) {
-    this._query = value;
-    void this._debouncedUpdate.invoke();
+  set query(value: string) {
+    if (this._query !== value) {
+      this._query = value;
+      this._page = 1;
+      void this._debouncedSearch.invoke();
+    }
   }
 
   /**
-   * The current NPM repository search page.
-   *
-   * The npm repository search is paginated by the `pagination` attribute.
-   * The `page` value selects which page is used.
+   * The current search page.
    *
    * Setting its value triggers a new search.
+   *
+   * ### Note
+   * First page is 1.
    */
   get page(): number {
     return this._page;
   }
   set page(value: number) {
-    this._page = value;
-    void this.update();
+    if (this._page !== value) {
+      this._page = value;
+      void this._debouncedSearch.invoke();
+    }
   }
 
   /**
-   * The NPM repository search pagination.
-   *
-   * The npm repository search is paginated by the `pagination` attribute.
-   * The `page` value selects which page is used.
+   * The search pagination.
    *
    * Setting its value triggers a new search.
    */
@@ -325,36 +308,17 @@ export class ListModel extends VDomModel {
     return this._pagination;
   }
   set pagination(value: number) {
-    this._pagination = value;
-    void this.update();
-  }
-
-  /**
-   * The total number of results in the current search.
-   */
-  get totalEntries(): number {
-    return this._totalEntries;
-  }
-
-  /**
-   * The list mode.
-   */
-  get listMode(): 'block' | 'allow' | 'default' | 'invalid' {
-    return this._listMode;
-  }
-
-  /**
-   * The total number of blockedExtensions results in the current search.
-   */
-  get totalblockedExtensionsFound(): number {
-    return this._totalblockedExtensionsFound;
+    if (this._pagination !== value) {
+      this._pagination = value;
+      void this._debouncedSearch.invoke();
+    }
   }
 
   /**
-   * The total number of allowedExtensions results in the current search.
+   * The last page of results in the current search.
    */
-  get totalallowedExtensionsFound(): number {
-    return this._totalallowedExtensionsFound;
+  get lastPage(): number {
+    return this._lastPage;
   }
 
   /**
@@ -364,25 +328,10 @@ export class ListModel extends VDomModel {
     if (this.isDisposed) {
       return;
     }
-    this._debouncedUpdate.dispose();
+    this._debouncedSearch.dispose();
     super.dispose();
   }
 
-  /**
-   * Initialize the model.
-   */
-  initialize(): Promise<void> {
-    return this.update()
-      .then(() => {
-        this.initialized = true;
-        this.stateChanged.emit(undefined);
-      })
-      .catch(() => {
-        this.initialized = true;
-        this.stateChanged.emit(undefined);
-      });
-  }
-
   /**
    * Whether there are currently any actions pending.
    */
@@ -396,24 +345,11 @@ export class ListModel extends VDomModel {
    * @param entry An entry indicating which extension to install.
    */
   async install(entry: IEntry): Promise<void> {
-    if (entry.installed) {
-      // Updating
-      await this._performAction('install', entry).then(data => {
-        if (data.status !== 'ok') {
-          reportInstallError(entry.name, data.message, this.translator);
-        }
-        return this.update();
-      });
-    }
-    await this.checkCompanionPackages(entry).then(shouldInstall => {
-      if (shouldInstall) {
-        return this._performAction('install', entry).then(data => {
-          if (data.status !== 'ok') {
-            reportInstallError(entry.name, data.message, this.translator);
-          }
-          return this.update();
-        });
+    await this.performAction('install', entry).then(data => {
+      if (data.status !== 'ok') {
+        reportInstallError(entry.name, data.message, this.translator);
       }
+      return this.update(true);
     });
   }
 
@@ -426,8 +362,8 @@ export class ListModel extends VDomModel {
     if (!entry.installed) {
       throw new Error(`Not installed, cannot uninstall: ${entry.name}`);
     }
-    await this._performAction('uninstall', entry);
-    return this.update();
+    await this.performAction('uninstall', entry);
+    return this.update(true);
   }
 
   /**
@@ -439,8 +375,8 @@ export class ListModel extends VDomModel {
     if (entry.enabled) {
       throw new Error(`Already enabled: ${entry.name}`);
     }
-    await this._performAction('enable', entry);
-    await this.update();
+    await this.performAction('enable', entry);
+    await this.refreshInstalled(true);
   }
 
   /**
@@ -452,245 +388,30 @@ export class ListModel extends VDomModel {
     if (!entry.enabled) {
       throw new Error(`Already disabled: ${entry.name}`);
     }
-    await this._performAction('disable', entry);
-    await this.update();
+    await this.performAction('disable', entry);
+    await this.refreshInstalled(true);
   }
 
   /**
-   * Check for companion packages in kernels or server.
+   * Refresh installed packages
    *
-   * @param entry An entry indicating which extension to check.
-   */
-  checkCompanionPackages(entry: IEntry): Promise<boolean> {
-    return this.searcher
-      .fetchPackageData(entry.name, entry.latest_version)
-      .then(data => {
-        if (!data || !data.jupyterlab || !data.jupyterlab.discovery) {
-          return true;
-        }
-        const discovery = data.jupyterlab.discovery;
-        const kernelCompanions: KernelCompanion[] = [];
-        if (discovery.kernel) {
-          // match specs
-          for (const kernelInfo of discovery.kernel) {
-            const matches = Private.matchSpecs(
-              kernelInfo,
-              this.serviceManager.kernelspecs.specs
-            );
-            kernelCompanions.push({ kernelInfo, kernels: matches });
-          }
-        }
-        if (kernelCompanions.length < 1 && !discovery.server) {
-          return true;
-        }
-        return presentCompanions(
-          kernelCompanions,
-          discovery.server,
-          this.translator
-        );
-      });
-  }
-
-  /**
-   * Trigger a build check to incorporate actions taken.
+   * @param force Force refreshing the list of installed packages
    */
-  triggerBuildCheck(): void {
-    const builder = this.serviceManager.builder;
-    if (builder.isAvailable && !this.promptBuild) {
-      const completed = builder.getStatus().then(response => {
-        if (response.status === 'building') {
-          // Piggy-back onto existing build
-          // TODO: Can this cause dialog collision on build completion?
-          return doBuild(this._app, builder);
-        }
-        if (response.status !== 'needed') {
-          return;
-        }
-        if (!this.promptBuild) {
-          this.promptBuild = true;
-          this.stateChanged.emit(undefined);
-        }
+  async refreshInstalled(force = false): Promise<void> {
+    this.installedError = null;
+    this._isLoadingInstalledExtensions = true;
+    this.stateChanged.emit();
+    try {
+      const [extensions] = await Private.requestAPI<IEntry[]>({
+        refresh: force ? 1 : 0
       });
-      this._addPendingAction(completed);
-    }
-  }
-
-  /**
-   * Perform a build on the server
-   */
-  performBuild(): void {
-    if (this.promptBuild) {
-      this.promptBuild = false;
-      this.stateChanged.emit(undefined);
-    }
-    const completed = doBuild(this._app, this.serviceManager.builder);
-    this._addPendingAction(completed);
-  }
-
-  /**
-   * Ignore a build recommendation
-   */
-  ignoreBuildRecommendation(): void {
-    if (this.promptBuild) {
-      this.promptBuild = false;
-      this.stateChanged.emit(undefined);
-    }
-  }
-
-  /**
-   * Ignore a build recommendation
-   */
-  refreshInstalled(): void {
-    const refresh = this.update(true);
-    this._addPendingAction(refresh);
-  }
-
-  /**
-   * Translate search results from an npm repository query into entries
-   * and remove entries with 'deprecated' in the keyword list
-   *
-   * @param res Promise to an npm query result.
-   */
-  protected async translateSearchResult(
-    res: Promise<ISearchResult>
-  ): Promise<{ [key: string]: IEntry }> {
-    const entries: { [key: string]: IEntry } = {};
-    this._totalblockedExtensionsFound = 0;
-    this._totalallowedExtensionsFound = 0;
-    this._totalEntries = 0;
-    for (const obj of (await res).objects) {
-      const pkg = obj.package;
-      if (pkg.keywords.indexOf('deprecated') >= 0) {
-        continue;
-      }
-      this._totalEntries = this._totalEntries + 1;
-      const isblockedExtensions = this.isListed(
-        pkg.name,
-        this._blockedExtensionsArray
-      );
-      if (isblockedExtensions) {
-        this._totalblockedExtensionsFound =
-          this._totalblockedExtensionsFound + 1;
-      }
-      const isallowedExtensions = this.isListed(
-        pkg.name,
-        this._allowedExtensionsArray
-      );
-      if (isallowedExtensions) {
-        this._totalallowedExtensionsFound =
-          this._totalallowedExtensionsFound + 1;
-      }
-      entries[pkg.name] = {
-        name: pkg.name,
-        description: pkg.description,
-        url:
-          'homepage' in pkg.links
-            ? pkg.links.homepage
-            : 'repository' in pkg.links
-            ? pkg.links.repository
-            : pkg.links.npm,
-        installed: false,
-        enabled: false,
-        status: null,
-        latest_version: pkg.version,
-        installed_version: '',
-        blockedExtensionsEntry: isblockedExtensions,
-        allowedExtensionsEntry: isallowedExtensions,
-        pkg_type: 'source',
-        install: undefined
-      };
-    }
-    return entries;
-  }
-
-  /**
-   * Translate installed extensions information from the server into entries.
-   *
-   * @param res Promise to the server reply data.
-   */
-  protected async translateInstalled(
-    res: Promise<IInstalledEntry[]>
-  ): Promise<{ [key: string]: IEntry }> {
-    const promises = [];
-    const entries: { [key: string]: IEntry } = {};
-    for (const pkg of await res) {
-      promises.push(
-        res.then(info => {
-          entries[pkg.name] = {
-            name: pkg.name,
-            description: pkg.description,
-            url: pkg.url,
-            installed: pkg.installed !== false,
-            enabled: pkg.enabled,
-            status: pkg.status,
-            latest_version: pkg.latest_version,
-            installed_version: pkg.installed_version,
-            blockedExtensionsEntry: this.isListed(
-              pkg.name,
-              this._blockedExtensionsArray
-            ),
-            allowedExtensionsEntry: this.isListed(
-              pkg.name,
-              this._allowedExtensionsArray
-            ),
-            pkg_type: pkg.pkg_type,
-            install: {
-              packageManager: pkg.install?.packageManager,
-              packageName: pkg.install?.packageName,
-              uninstallInstructions: pkg.install?.uninstallInstructions
-            }
-          };
-        })
-      );
-    }
-    return Promise.all(promises).then(() => {
-      return entries;
-    });
-  }
-
-  private isListed(
-    name: string,
-    listArray: Array<IListEntry>
-  ): IListEntry | undefined {
-    let entry: IListEntry | undefined = undefined;
-    listArray.forEach((listEntry: IListEntry) => {
-      if (listEntry.regexp && listEntry.regexp?.test(name)) {
-        entry = listEntry;
-      }
-    });
-    return entry;
-  }
-
-  /**
-   * Make a request to the server for info about its installed extensions.
-   */
-  protected fetchInstalled(
-    refreshInstalled = false
-  ): Promise<IInstalledEntry[]> {
-    const url = new URL(
-      EXTENSION_API_PATH,
-      this.serverConnectionSettings.baseUrl
-    );
-    if (refreshInstalled) {
-      url.searchParams.append('refresh', '1');
+      this._installed = extensions.sort(Private.comparator);
+    } catch (reason) {
+      this.installedError = reason.toString();
+    } finally {
+      this._isLoadingInstalledExtensions = false;
+      this.stateChanged.emit();
     }
-    const request = ServerConnection.makeRequest(
-      url.toString(),
-      {},
-      this.serverConnectionSettings
-    ).then(response => {
-      Private.handleError(response);
-      return response.json() as Promise<IInstalledEntry[]>;
-    });
-    request.then(
-      () => {
-        this.serverConnectionError = null;
-      },
-      reason => {
-        this.serverConnectionError = reason.toString();
-      }
-    );
-    return request;
   }
 
   /**
@@ -698,91 +419,60 @@ export class ListModel extends VDomModel {
    *
    * Sets searchError and totalEntries as appropriate.
    *
-   * @returns {Promise<{ [key: string]: IEntry; }>} The search result as a map of entries.
+   * @returns The extensions matching the current query.
    */
-  protected async performSearch(): Promise<{ [key: string]: IEntry }> {
-    if (this.query === null) {
-      this.query = '';
+  protected async search(force = false): Promise<void> {
+    if (!this.isDisclaimed) {
+      return Promise.reject('Installation warning is not disclaimed.');
     }
 
-    // Start the search without waiting for it:
-    const search = this.searcher.searchExtensions(
-      this.query,
-      this.page,
-      this.pagination
-    );
-    const searchMapPromise = this.translateSearchResult(search);
-
-    let searchMap: { [key: string]: IEntry };
+    this.searchError = null;
+    this._isSearching = true;
+    this.stateChanged.emit();
     try {
-      searchMap = await searchMapPromise;
-      this.searchError = null;
-    } catch (reason) {
-      searchMap = {};
-      this.searchError = reason.toString();
-    }
+      const [extensions, links] = await Private.requestAPI<IEntry[]>({
+        query: this.query ?? '',
+        page: this.page,
+        per_page: this.pagination,
+        refresh: force ? 1 : 0
+      });
 
-    return searchMap;
-  }
+      const lastURL = links['last'];
+      if (lastURL) {
+        const lastPage = URLExt.queryStringToObject(
+          URLExt.parse(lastURL).search ?? ''
+        )['page'];
 
-  /**
-   * Query the installed extensions.
-   *
-   * Sets installedError as appropriate.
-   *
-   * @returns {Promise<{ [key: string]: IEntry; }>} A map of installed extensions.
-   */
-  protected async queryInstalled(
-    refreshInstalled: boolean
-  ): Promise<{ [key: string]: IEntry }> {
-    let installedMap;
-    try {
-      installedMap = await this.translateInstalled(
-        this.fetchInstalled(refreshInstalled)
-      );
-      this.installedError = null;
+        if (lastPage) {
+          this._lastPage = parseInt(lastPage, 10);
+        }
+      }
+
+      const installedNames = this._installed.map(pkg => pkg.name);
+      this._lastSearchResult = extensions
+        .filter(pkg => !installedNames.includes(pkg.name))
+        .sort(Private.comparator);
     } catch (reason) {
-      installedMap = {};
-      this.installedError = reason.toString();
+      this.searchError = reason.toString();
+    } finally {
+      this._isSearching = false;
+      this.stateChanged.emit();
     }
-    return installedMap;
   }
 
   /**
    * Update the current model.
    *
-   * This will query the NPM repository, and the notebook server.
+   * This will query the packages repository, and the notebook server.
    *
    * Emits the `stateChanged` signal on successful completion.
    */
-  protected async update(refreshInstalled = false) {
-    if (ListModel.isDisclaimed()) {
-      const [searchMap, installedMap] = await Promise.all([
-        this.performSearch(),
-        this.queryInstalled(refreshInstalled)
-      ]);
-
-      // Map results to attributes:
-      const installed: IEntry[] = [];
-      for (const key of Object.keys(installedMap)) {
-        installed.push(installedMap[key]);
-      }
-      this._installed = installed.sort(Private.comparator);
-
-      const searchResult: IEntry[] = [];
-      for (const key of Object.keys(searchMap)) {
-        // Filter out installed entries from search results:
-        if (installedMap[key] === undefined) {
-          searchResult.push(searchMap[key]);
-        } else {
-          searchResult.push(installedMap[key]);
-        }
-      }
-      this._searchResult = searchResult.sort(Private.comparator);
+  protected async update(force = false): Promise<void> {
+    if (this.isDisclaimed) {
+      // First refresh the installed list - so the search results are correctly filtered
+      await this.refreshInstalled(force);
+      await this.search();
     }
-
-    // Signal updated state
-    this.stateChanged.emit(undefined);
   }
 
   /**
@@ -791,40 +481,64 @@ export class ListModel extends VDomModel {
    * @param action A valid action to perform.
    * @param entry The extension to perform the action on.
    */
-  protected _performAction(
+  protected performAction(
     action: string,
     entry: IEntry
   ): Promise<IActionReply> {
-    const url = new URL(
-      EXTENSION_API_PATH,
-      this.serverConnectionSettings.baseUrl
+    const actionRequest = Private.requestAPI<IActionReply>(
+      {},
+      {
+        method: 'POST',
+        body: JSON.stringify({
+          cmd: action,
+          extension_name: entry.name
+        })
+      }
     );
-    const request: RequestInit = {
-      method: 'POST',
-      body: JSON.stringify({
-        cmd: action,
-        extension_name: entry.name
-      })
-    };
-    const completed = ServerConnection.makeRequest(
-      url.toString(),
-      request,
-      this.serverConnectionSettings
-    ).then(response => {
-      Private.handleError(response);
-      this.triggerBuildCheck();
-      return response.json() as Promise<IActionReply>;
-    });
-    completed.then(
-      () => {
-        this.serverConnectionError = null;
+
+    actionRequest.then(
+      ([reply]) => {
+        const trans = this.translator.load('jupyterlab');
+        if (reply.needs_restart.includes('server')) {
+          void showDialog({
+            title: trans.__('Information'),
+            body: trans.__(
+              'You will need to restart JupyterLab to apply the changes.'
+            ),
+            buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+          });
+        } else {
+          const followUps: string[] = [];
+          if (reply.needs_restart.includes('frontend')) {
+            followUps.push(
+              // @ts-expect-error isElectron is not a standard attribute
+              window.isElectron
+                ? trans.__('reload JupyterLab')
+                : trans.__('refresh the web page')
+            );
+          }
+          if (reply.needs_restart.includes('kernel')) {
+            followUps.push(
+              trans.__('install the extension in all kernels and restart them')
+            );
+          }
+          void showDialog({
+            title: trans.__('Information'),
+            body: trans.__(
+              'You will need to %1 to apply the changes.',
+              followUps.join(trans.__(' and '))
+            ),
+            buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+          });
+        }
+        this.actionError = null;
       },
       reason => {
-        this.serverConnectionError = reason.toString();
+        this.actionError = reason.toString();
       }
     );
-    this._addPendingAction(completed);
-    return completed;
+    this.addPendingAction(actionRequest);
+    return actionRequest.then(([reply]) => reply);
   }
 
   /**
@@ -832,7 +546,7 @@ export class ListModel extends VDomModel {
    *
    * @param pending A promise that resolves when the action is completed.
    */
-  protected _addPendingAction(pending: Promise<any>): void {
+  protected addPendingAction(pending: Promise<any>): void {
     // Add to pending actions collection
     this._pendingActions.push(pending);
 
@@ -848,6 +562,8 @@ export class ListModel extends VDomModel {
     this.stateChanged.emit(undefined);
   }
 
+  actionError: string | null = null;
+
   /**
    * Contains an error message if an error occurred when querying installed extensions.
    */
@@ -859,68 +575,33 @@ export class ListModel extends VDomModel {
   searchError: string | null = null;
 
   /**
-   * Contains an error message if an error occurred when searching for lists.
-   */
-  blockedExtensionsError: string | null = null;
-
-  /**
-   * Contains an error message if an error occurred when querying the server extension.
-   */
-  serverConnectionError: string | null = null;
-
-  /**
-   * Contains an error message if the server has unfulfilled requirements.
-   */
-  serverRequirementsError: string | null = null;
-
-  /**
-   * Whether the model has finished async initialization.
-   */
-  initialized: boolean = false;
-
-  /**
-   * Whether a fresh build should be considered due to actions taken.
+   * Whether a reload should be considered due to actions taken.
    */
-  promptBuild: boolean = false;
-
-  /**
-   * Settings for connecting to the notebook server.
-   */
-  protected serverConnectionSettings: ServerConnection.ISettings;
-
-  /**
-   * A helper for performing searches of jupyterlab extensions on the NPM repository.
-   */
-  protected searcher: Searcher;
-
-  protected lister = new Lister();
+  promptReload = false;
 
   /**
    * The service manager to use for building.
    */
-  protected serviceManager: ServiceManager;
+  protected serviceManager: ServiceManager.IManager;
 
   protected translator: ITranslator;
-  private _app: JupyterFrontEnd;
-  private _query: string | null = ''; // TODO: we may not need the null case?
-  private _page: number = 0;
-  private _pagination: number = 250;
-  private _totalEntries: number = 0;
+
+  private _isDisclaimed = false;
+  private _isEnabled = false;
+  private _isLoadingInstalledExtensions = false;
+  private _isSearching = false;
+
+  private _query: string = '';
+  private _page: number = 1;
+  private _pagination: number = 30;
+  private _lastPage: number = 1;
 
   private _installed: IEntry[];
-  private _searchResult: IEntry[];
+  private _lastSearchResult: IEntry[];
   private _pendingActions: Promise<any>[] = [];
-  private _debouncedUpdate: Debouncer<void, void>;
-
-  private _listMode: 'block' | 'allow' | 'default' | 'invalid';
-  private _blockedExtensionsArray: Array<IListEntry>;
-  private _allowedExtensionsArray: Array<IListEntry>;
-  private _totalblockedExtensionsFound: number = 0;
-  private _totalallowedExtensionsFound: number = 0;
+  private _debouncedSearch: Debouncer<void, void>;
 }
 
-let _isDisclaimed = false;
-
 /**
  * ListModel statics.
  */
@@ -936,14 +617,6 @@ export namespace ListModel {
     }
     return semver.lt(entry.installed_version, entry.latest_version);
   }
-
-  export function isDisclaimed() {
-    return _isDisclaimed;
-  }
-
-  export function toogleDisclaimed() {
-    _isDisclaimed = !_isDisclaimed;
-  }
 }
 
 /**
@@ -956,69 +629,63 @@ namespace Private {
   export function comparator(a: IEntry, b: IEntry): number {
     if (a.name === b.name) {
       return 0;
-    }
-
-    const testA = isJupyterOrg(a.name);
-    const testB = isJupyterOrg(b.name);
-
-    if (testA === testB) {
-      // Retain sort-order from API
-      return 0;
-    } else if (testA && !testB) {
-      return -1;
     } else {
-      return 1;
+      return a.name > b.name ? 1 : -1;
     }
   }
 
+  const LINK_PARSER = /<([^>]+)>; rel="([^"]+)",?/g;
+
   /**
-   * Match kernel specs against kernel spec regexps
+   * Call the API extension
    *
-   * @param kernelInfo The info containing the regexp patterns
-   * @param specs The available kernel specs.
-   */
-  export function matchSpecs(
-    kernelInfo: IKernelInstallInfo,
-    specs: KernelSpec.ISpecModels | null
-  ): KernelSpec.ISpecModel[] {
-    if (!specs) {
-      return [];
-    }
-    const matches: KernelSpec.ISpecModel[] = [];
-    let reLang: RegExp | null = null;
-    let reName: RegExp | null = null;
-    if (kernelInfo.kernel_spec.language) {
-      reLang = new RegExp(kernelInfo.kernel_spec.language);
-    }
-    if (kernelInfo.kernel_spec.display_name) {
-      reName = new RegExp(kernelInfo.kernel_spec.display_name);
+   * @param queryArgs Query arguments
+   * @param init Initial values for the request
+   * @returns The response body interpreted as JSON and the response link header
+   */
+  export async function requestAPI<T>(
+    queryArgs: { [k: string]: any } = {},
+    init: RequestInit = {}
+  ): Promise<[T, { [key: string]: string }]> {
+    // Make request to Jupyter API
+    const settings = ServerConnection.makeSettings();
+    const requestUrl = URLExt.join(
+      settings.baseUrl,
+      EXTENSION_API_PATH // API Namespace
+    );
+
+    let response: Response;
+    try {
+      response = await ServerConnection.makeRequest(
+        requestUrl + URLExt.objectToQueryString(queryArgs),
+        init,
+        settings
+      );
+    } catch (error) {
+      throw new ServerConnection.NetworkError(error);
     }
-    for (const key of Object.keys(specs.kernelspecs)) {
-      const spec = specs.kernelspecs[key]!;
-      let match = false;
-      if (reLang) {
-        match = reLang.test(spec.language);
-      }
-      if (!match && reName) {
-        match = reName.test(spec.display_name);
-      }
-      if (match) {
-        matches.push(spec);
-        continue;
+
+    let data: any = await response.text();
+
+    if (data.length > 0) {
+      try {
+        data = JSON.parse(data);
+      } catch (error) {
+        console.log('Not a JSON response body.', response);
       }
     }
-    return matches;
-  }
 
-  /**
-   * Convert a response to an exception on error.
-   *
-   * @param response The response to inspect.
-   */
-  export function handleError(response: Response): Response {
     if (!response.ok) {
-      throw new Error(`${response.status} (${response.statusText})`);
+      throw new ServerConnection.ResponseError(response, data.message || data);
+    }
+
+    const link = response.headers.get('Link') ?? '';
+
+    const links: { [key: string]: string } = {};
+    let match: RegExpExecArray | null = null;
+    while ((match = LINK_PARSER.exec(link)) !== null) {
+      links[match[2]] = match[1];
     }
-    return response;
+    return [data, links];
   }
 }
diff --git a/packages/extensionmanager/src/npm.ts b/packages/extensionmanager/src/npm.ts
deleted file mode 100644
index 689df7784519..000000000000
--- a/packages/extensionmanager/src/npm.ts
+++ /dev/null
@@ -1,311 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { IJupyterLabPackageData } from './companions';
-
-/**
- * Information about a person in search results.
- */
-export interface IPerson {
-  /**
-   * The username of the person.
-   */
-  username: string;
-
-  /**
-   * The email of the person.
-   */
-  email: string;
-}
-
-/**
- * NPM registry search result structure (subset).
- *
- * See https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md
- * for full specification.
- */
-export interface ISearchResult {
-  /**
-   * A collection of search results.
-   */
-  objects: {
-    /**
-     * Metadata about the found package.
-     */
-    package: {
-      /**
-       * The package name.
-       */
-      name: string;
-
-      /**
-       * The scope of the package (e.g. jupyterlab for @jupyterlab/services).
-       */
-      scope: string;
-
-      /**
-       * Version number.
-       */
-      version: string;
-
-      /**
-       * Description as listed in package.json.
-       */
-      description: string;
-
-      /**
-       * Package keywords.
-       */
-      keywords: string[];
-
-      /**
-       * Timestamp of release(?).
-       */
-      date: string;
-
-      /**
-       * Various metadata links for the package.
-       */
-      links: { [key: string]: string };
-
-      /**
-       * Metadata about user who published the release.
-       */
-      publisher: IPerson;
-
-      /**
-       * Maintainer list per package.json.
-       */
-      maintainers: IPerson[];
-    };
-
-    /**
-     * Flags about the package.
-     */
-    flags: {
-      /**
-       * Package is insecure or have vulnerable dependencies (based on the nsp registry).
-       */
-      insecure: number;
-
-      /**
-       * Package has a version < 1.0.0.
-       */
-      unstable: boolean;
-    };
-
-    /**
-     * Object detailing the normalized search score.
-     */
-    score: {
-      /**
-       * The final normalized search score.
-       */
-      final: number;
-
-      /**
-       * Break down of the search score.
-       */
-      detail: {
-        /**
-         * The normalized quality score.
-         */
-        quality: number;
-
-        /**
-         * The normalized popularity score.
-         */
-        popularity: number;
-
-        /**
-         * The normalized maintenance score.
-         */
-        maintenance: number;
-      };
-    };
-
-    /**
-     * The search score.
-     */
-    searchScore: number;
-  }[];
-
-  /**
-   * The total number of objects found by the search.
-   *
-   * This can be greater than the number of objects due
-   * to pagination of the search results.
-   */
-  total: number;
-
-  /**
-   * Timestamp of the search result creation.
-   */
-  time: string;
-}
-
-/**
- * An interface for a subset of the keys known to be included for package metadata.
- *
- * See https://github.com/npm/registry/blob/master/docs/responses/package-metadata.md
- * for full specification.
- */
-export interface IPackageMetadata {
-  /**
-   * The package name.
-   */
-  name: string;
-
-  /**
-   * ISO string of the last time this package was modified.
-   */
-  modified: string;
-
-  /**
-   * A mapping of dist tags to the versions they point to.
-   */
-  'dist-tags': {
-    /**
-     * The version tagged as 'latest'.
-     */
-    latest: string;
-
-    [key: string]: string;
-  };
-
-  /**
-   * A short description of the package.
-   */
-  description: string;
-
-  /**
-   * A mapping of semver-compliant version numbers to version data.
-   */
-  versions: {
-    [key: string]: {
-      /**
-       * The package name.
-       */
-      name: string;
-
-      /**
-       * The version string for this version.
-       */
-      version: string;
-
-      /**
-       * The deprecation warnings message of this version.
-       */
-      deprecated?: string;
-
-      /**
-       * A short description of the package.
-       */
-      description: string;
-    };
-  };
-}
-
-/**
- * An object for searching an NPM registry.
- *
- * Searches the NPM registry via web API:
- * https://github.com/npm/registry/blob/master/docs/REGISTRY-API.md
- */
-export class Searcher {
-  /**
-   * Create a Searcher object.
-   *
-   * @param repoUri The URI of the NPM registry to use.
-   * @param cdnUri The URI of the CDN to use for fetching full package data.
-   */
-  constructor(
-    repoUri = 'https://registry.npmjs.org/-/v1/',
-    cdnUri = 'https://unpkg.com',
-    enableCdn = true
-  ) {
-    this.repoUri = repoUri;
-    this.cdnUri = cdnUri;
-    this.enableCdn = enableCdn;
-  }
-
-  /**
-   * Search for a jupyterlab extension.
-   *
-   * @param query The query to send. `keywords:"jupyterlab-extension"` will be appended to the query.
-   * @param page The page of results to fetch.
-   * @param pageination The pagination size to use. See registry API documentation for acceptable values.
-   */
-  searchExtensions(
-    query: string,
-    page = 0,
-    pageination = 250
-  ): Promise<ISearchResult> {
-    const uri = new URL('search', this.repoUri);
-    // Note: Spaces are encoded to '+' signs!
-    const text = `${query} keywords:"jupyterlab-extension"`;
-    uri.searchParams.append('text', text);
-    uri.searchParams.append('size', pageination.toString());
-    uri.searchParams.append('from', (pageination * page).toString());
-    return fetch(uri.toString()).then((response: Response) => {
-      if (response.ok) {
-        return response.json();
-      }
-      return [];
-    });
-  }
-
-  /**
-   * Fetch package.json of a package
-   *
-   * @param name The package name.
-   * @param version The version of the package to fetch.
-   */
-  fetchPackageData(
-    name: string,
-    version: string
-  ): Promise<IJupyterLabPackageData | null> {
-    const uri = this.enableCdn
-      ? new URL(`/${name}@${version}/package.json`, this.cdnUri)
-      : new URL(`/${name}/${version}`, this.repoUri);
-    return fetch(uri.toString()).then((response: Response) => {
-      if (response.ok) {
-        return response.json();
-      }
-      return null;
-    });
-  }
-
-  /**
-   * The URI of the NPM registry to use.
-   */
-  repoUri: string;
-
-  /**
-   * The URI of the CDN to use for fetching full package data.
-   */
-  cdnUri: string;
-
-  /**
-   * Whether to use the CDN for fetching full package data. Otherwise, the NPM registry is used.
-   */
-  enableCdn: boolean;
-}
-
-/**
- * Check whether the NPM org is a Jupyter one.
- */
-export function isJupyterOrg(name: string): boolean {
-  /**
-   * A list of jupyterlab NPM orgs.
-   */
-  const jupyterOrg = ['jupyterlab', 'jupyter-widgets'];
-  const parts = name.split('/');
-  const first = parts[0];
-  return (
-    parts.length > 1 && // Has a first part
-    !!first && // with a finite length
-    first[0] === '@' && // corresponding to an org name
-    jupyterOrg.indexOf(first.slice(1)) !== -1 // in the org allowedExtensions.
-  );
-}
diff --git a/packages/extensionmanager/src/widget.tsx b/packages/extensionmanager/src/widget.tsx
index 165fb06b3358..e597092d0814 100644
--- a/packages/extensionmanager/src/widget.tsx
+++ b/packages/extensionmanager/src/widget.tsx
@@ -1,177 +1,39 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterFrontEnd } from '@jupyterlab/application';
-import {
-  Dialog,
-  showDialog,
-  ToolbarButtonComponent,
-  VDomRenderer
-} from '@jupyterlab/apputils';
-import { ServiceManager } from '@jupyterlab/services';
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
+import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
 import {
   Button,
-  caretDownIcon,
-  caretRightIcon,
-  Collapse,
-  InputGroup,
+  FilterBox,
+  infoIcon,
   jupyterIcon,
-  listingsInfoIcon,
-  refreshIcon
+  PanelWithToolbar,
+  ReactWidget,
+  refreshIcon,
+  SidePanel,
+  ToolbarButton,
+  ToolbarButtonComponent
 } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
+import { AccordionLayout, AccordionPanel } from '@lumino/widgets';
 import * as React from 'react';
 import ReactPaginate from 'react-paginate';
 import { Action, IEntry, ListModel } from './model';
-import { isJupyterOrg } from './npm';
-
-// TODO: Replace pagination with lazy loading of lower search results
-
-/**
- * Icons with custom styling bound.
- */
-const caretDownIconStyled = caretDownIcon.bindprops({
-  height: 'auto',
-  width: '20px'
-});
-const caretRightIconStyled = caretRightIcon.bindprops({
-  height: 'auto',
-  width: '20px'
-});
-
-const badgeSize = 32;
-const badgeQuerySize = Math.floor(devicePixelRatio * badgeSize);
-
-/**
- * Search bar VDOM component.
- */
-export class SearchBar extends React.Component<
-  SearchBar.IProperties,
-  SearchBar.IState
-> {
-  constructor(props: SearchBar.IProperties) {
-    super(props);
-    this.state = {
-      value: ''
-    };
-  }
-
-  /**
-   * Render the list view using the virtual DOM.
-   */
-  render(): React.ReactNode {
-    return (
-      <div className="jp-extensionmanager-search-bar">
-        <InputGroup
-          className="jp-extensionmanager-search-wrapper"
-          type="text"
-          placeholder={this.props.placeholder}
-          onChange={this.handleChange}
-          value={this.state.value}
-          rightIcon="ui-components:search"
-          disabled={this.props.disabled}
-        />
-      </div>
-    );
-  }
-
-  /**
-   * Handler for search input changes.
-   */
-  handleChange = (e: React.FormEvent<HTMLElement>) => {
-    const target = e.target as HTMLInputElement;
-    this.setState({
-      value: target.value
-    });
-  };
-}
-
-/**
- * The namespace for search bar statics.
- */
-export namespace SearchBar {
-  /**
-   * React properties for search bar component.
-   */
-  export interface IProperties {
-    /**
-     * The placeholder string to use in the search bar input field when empty.
-     */
-    placeholder: string;
-
-    disabled: boolean;
-
-    settings: ISettingRegistry.ISettings;
-  }
 
-  /**
-   * React state for search bar component.
-   */
-  export interface IState {
-    /**
-     * The value of the search bar input field.
-     */
-    value: string;
-  }
-}
-
-/**
- * Create a build prompt as a react element.
- *
- * @param props Configuration of the build prompt.
- */
-function BuildPrompt(props: BuildPrompt.IProperties): React.ReactElement<any> {
-  const translator = props.translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  return (
-    <div className="jp-extensionmanager-buildprompt">
-      <div className="jp-extensionmanager-buildmessage">
-        {trans.__('A build is needed to include the latest changes')}
-      </div>
-      <Button onClick={props.performBuild} minimal small>
-        {trans.__('Rebuild')}
-      </Button>
-      <Button onClick={props.ignoreBuild} minimal small>
-        {trans.__('Ignore')}
-      </Button>
-    </div>
-  );
-}
-
-/**
- * The namespace for build prompt statics.
- */
-namespace BuildPrompt {
-  /**
-   * Properties for build prompt react component.
-   */
-  export interface IProperties {
-    /**
-     * Callback for when a build is requested.
-     */
-    performBuild: () => void;
-
-    /**
-     * Callback for when a build notice is dismissed.
-     */
-    ignoreBuild: () => void;
-
-    /**
-     * The application language translator.
-     */
-    translator?: ITranslator;
-  }
-}
+const BADGE_SIZE = 32;
+const BADGE_QUERY_SIZE = Math.floor(devicePixelRatio * BADGE_SIZE);
 
 function getExtensionGitHubUser(entry: IEntry) {
-  if (entry.url && entry.url.startsWith('https://github.com/')) {
-    return entry.url.split('/')[3];
+  if (
+    entry.homepage_url &&
+    entry.homepage_url.startsWith('https://github.com/')
+  ) {
+    return entry.homepage_url.split('/')[3];
+  } else if (
+    entry.repository_url &&
+    entry.repository_url.startsWith('https://github.com/')
+  ) {
+    return entry.repository_url.split('/')[3];
   }
   return null;
 }
@@ -180,103 +42,78 @@ function getExtensionGitHubUser(entry: IEntry) {
  * VDOM for visualizing an extension entry.
  */
 function ListEntry(props: ListEntry.IProperties): React.ReactElement<any> {
-  const { entry, listMode, viewType } = props;
-  const translator = props.translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
+  const { canFetch, entry, supportInstallation, trans } = props;
   const flagClasses = [];
   if (entry.status && ['ok', 'warning', 'error'].indexOf(entry.status) !== -1) {
     flagClasses.push(`jp-extensionmanager-entry-${entry.status}`);
   }
-  let title = entry.name;
-  const entryIsJupyterOrg = isJupyterOrg(entry.name);
-  if (entryIsJupyterOrg) {
-    title = trans.__('%1 (Developed by Project Jupyter)', entry.name);
-  }
-  const githubUser = getExtensionGitHubUser(entry);
-  if (
-    listMode === 'block' &&
-    entry.blockedExtensionsEntry &&
-    viewType === 'searchResult'
-  ) {
-    return <li></li>;
-  }
-  if (
-    listMode === 'allow' &&
-    !entry.allowedExtensionsEntry &&
-    viewType === 'searchResult'
-  ) {
-    return <li></li>;
-  }
-  if (listMode === 'block' && entry.blockedExtensionsEntry?.name) {
-    flagClasses.push(`jp-extensionmanager-entry-should-be-uninstalled`);
-  }
-  if (listMode === 'allow' && !entry.allowedExtensionsEntry) {
+  const githubUser = canFetch ? getExtensionGitHubUser(entry) : null;
+
+  if (!entry.allowed) {
     flagClasses.push(`jp-extensionmanager-entry-should-be-uninstalled`);
   }
+
   return (
     <li
       className={`jp-extensionmanager-entry ${flagClasses.join(' ')}`}
-      title={title}
       style={{ display: 'flex' }}
     >
       <div style={{ marginRight: '8px' }}>
-        {githubUser && (
+        {githubUser ? (
           <img
-            src={`https://github.com/${githubUser}.png?size=${badgeQuerySize}`}
+            src={`https://github.com/${githubUser}.png?size=${BADGE_QUERY_SIZE}`}
             style={{ width: '32px', height: '32px' }}
           />
-        )}
-        {!githubUser && (
-          <div style={{ width: `${badgeSize}px`, height: `${badgeSize}px` }} />
+        ) : (
+          <div
+            style={{ width: `${BADGE_SIZE}px`, height: `${BADGE_SIZE}px` }}
+          />
         )}
       </div>
       <div className="jp-extensionmanager-entry-description">
         <div className="jp-extensionmanager-entry-title">
           <div className="jp-extensionmanager-entry-name">
-            {entry.url ? (
-              <a href={entry.url} target="_blank" rel="noopener noreferrer">
+            {entry.homepage_url ? (
+              <a
+                href={entry.homepage_url}
+                target="_blank"
+                rel="noopener noreferrer"
+                title={trans.__('%1 extension home page', entry.name)}
+              >
                 {entry.name}
               </a>
             ) : (
               <div>{entry.name}</div>
             )}
           </div>
-          {entry.blockedExtensionsEntry && (
+          <div className="jp-extensionmanager-entry-version">
+            <div title={trans.__('Version: %1', entry.installed_version)}>
+              {entry.installed_version}
+            </div>
+          </div>
+          {entry.installed && !entry.allowed && (
             <ToolbarButtonComponent
-              icon={listingsInfoIcon}
+              icon={infoIcon}
               iconLabel={trans.__(
-                '%1 extension has been blockedExtensions since install. Please uninstall immediately and contact your blockedExtensions administrator.',
+                '%1 extension is not allowed anymore. Please uninstall it immediately or contact your administrator.',
                 entry.name
               )}
               onClick={() =>
                 window.open(
-                  'https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html'
+                  'https://jupyterlab.readthedocs.io/en/stable/user/extensions.html'
                 )
               }
             />
           )}
-          {!entry.allowedExtensionsEntry &&
-            viewType === 'installed' &&
-            listMode === 'allow' && (
-              <ToolbarButtonComponent
-                icon={listingsInfoIcon}
-                iconLabel={trans.__(
-                  '%1 extension has been removed from the allowedExtensions since installation. Please uninstall immediately and contact your allowedExtensions administrator.',
-                  entry.name
-                )}
-                onClick={() =>
-                  window.open(
-                    'https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html'
-                  )
-                }
-              />
-            )}
-          {entryIsJupyterOrg && (
+          {entry.approved && (
             <jupyterIcon.react
-              className="jp-extensionmanager-is-jupyter-org"
+              className="jp-extensionmanager-is-approved"
               top="1px"
               height="auto"
               width="1em"
+              title={trans.__(
+                'This extension is approved by your security team.'
+              )}
             />
           )}
         </div>
@@ -284,214 +121,154 @@ function ListEntry(props: ListEntry.IProperties): React.ReactElement<any> {
           <div className="jp-extensionmanager-entry-description">
             {entry.description}
           </div>
-          <div className="jp-extensionmanager-entry-buttons">
-            {!entry.installed &&
-              entry.pkg_type == 'source' &&
-              !entry.blockedExtensionsEntry &&
-              !(!entry.allowedExtensionsEntry && listMode === 'allow') &&
-              ListModel.isDisclaimed() && (
-                <Button
-                  onClick={() => props.performAction('install', entry)}
-                  minimal
-                  small
-                >
-                  {trans.__('Install')}
-                </Button>
-              )}
-            {ListModel.entryHasUpdate(entry) &&
-              entry.pkg_type == 'source' &&
-              !entry.blockedExtensionsEntry &&
-              !(!entry.allowedExtensionsEntry && listMode === 'allow') &&
-              ListModel.isDisclaimed() && (
-                <Button
-                  onClick={() => props.performAction('install', entry)}
-                  minimal
-                  small
-                >
-                  {trans.__('Update')}
-                </Button>
+          {props.performAction && (
+            <div className="jp-extensionmanager-entry-buttons">
+              {entry.installed ? (
+                <>
+                  {supportInstallation && (
+                    <>
+                      {ListModel.entryHasUpdate(entry) && (
+                        <Button
+                          onClick={() => props.performAction!('install', entry)}
+                          title={trans.__(
+                            'Update "%1" to "%2"',
+                            entry.name,
+                            entry.latest_version
+                          )}
+                          minimal
+                          small
+                        >
+                          {trans.__('Update to %1', entry.latest_version)}
+                        </Button>
+                      )}
+                      <Button
+                        onClick={() => props.performAction!('uninstall', entry)}
+                        title={trans.__('Uninstall "%1"', entry.name)}
+                        minimal
+                        small
+                      >
+                        {trans.__('Uninstall')}
+                      </Button>
+                    </>
+                  )}
+                  {entry.enabled ? (
+                    <Button
+                      onClick={() => props.performAction!('disable', entry)}
+                      title={trans.__('Disable "%1"', entry.name)}
+                      minimal
+                      small
+                    >
+                      {trans.__('Disable')}
+                    </Button>
+                  ) : (
+                    <Button
+                      onClick={() => props.performAction!('enable', entry)}
+                      title={trans.__('Enable "%1"', entry.name)}
+                      minimal
+                      small
+                    >
+                      {trans.__('Enable')}
+                    </Button>
+                  )}
+                </>
+              ) : (
+                supportInstallation && (
+                  <Button
+                    onClick={() => props.performAction!('install', entry)}
+                    title={trans.__('Install "%1"', entry.name)}
+                    minimal
+                    small
+                  >
+                    {trans.__('Install')}
+                  </Button>
+                )
               )}
-            {entry.installed && entry.pkg_type == 'source' && (
-              <Button
-                onClick={() => props.performAction('uninstall', entry)}
-                minimal
-                small
-              >
-                {trans.__('Uninstall')}
-              </Button>
-            )}
-            {entry.enabled && entry.pkg_type == 'source' && (
-              <Button
-                onClick={() => props.performAction('disable', entry)}
-                minimal
-                small
-              >
-                {trans.__('Disable')}
-              </Button>
-            )}
-            {entry.installed && entry.pkg_type == 'source' && !entry.enabled && (
-              <Button
-                onClick={() => props.performAction('enable', entry)}
-                minimal
-                small
-              >
-                {trans.__('Enable')}
-              </Button>
-            )}
-            {entry.installed && entry.pkg_type == 'prebuilt' && (
-              <div className="jp-extensionmanager-entry-buttons">
-                <Button
-                  onClick={() =>
-                    showDialog({
-                      title,
-                      body: (
-                        <div>
-                          {getPrebuiltUninstallInstruction(entry, trans)}
-                        </div>
-                      ),
-                      buttons: [
-                        Dialog.okButton({
-                          label: trans.__('OK'),
-                          caption: trans.__('OK')
-                        })
-                      ]
-                    }).then(result => {
-                      return result.button.accept;
-                    })
-                  }
-                  minimal
-                  small
-                >
-                  {trans.__('About')}
-                </Button>
-              </div>
-            )}
-          </div>
+            </div>
+          )}
         </div>
       </div>
     </li>
   );
 }
 
-function getPrebuiltUninstallInstruction(
-  entry: IEntry,
-  trans: TranslationBundle
-): JSX.Element {
-  if (entry.install?.uninstallInstructions) {
-    return (
-      <div>
-        <p>
-          {trans.__(`This is a prebuilt extension. To uninstall it, please
-    apply following instructions.`)}
-        </p>
-        <p>{trans.__(entry.install?.uninstallInstructions)}</p>
-      </div>
-    );
-  }
-  return (
-    <div>
-      <p>
-        {trans.__(`This is a prebuilt extension. To uninstall it, please
-    read the user guide on:`)}
-      </p>
-      <p>
-        <a
-          href="https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html
-        </a>
-      </p>
-    </div>
-  );
-}
-
 /**
  * The namespace for extension entry statics.
  */
-export namespace ListEntry {
+namespace ListEntry {
   export interface IProperties {
     /**
-     * The entry to visualize.
+     * Whether thumbnails can be fetched from external webservices or not.
      */
-    entry: IEntry;
+    canFetch: boolean;
 
     /**
-     * The list mode to apply.
+     * The entry to visualize.
      */
-    listMode: 'block' | 'allow' | 'default' | 'invalid';
+    entry: IEntry;
 
     /**
-     * The requested view type.
+     * Whether the extension can be (un-)install or not.
      */
-    viewType: 'installed' | 'searchResult';
+    supportInstallation: boolean;
 
     /**
      * Callback to use for performing an action on the entry.
+     *
+     * Not provided if actions are not allowed.
      */
-    performAction: (action: Action, entry: IEntry) => void;
+    performAction?: (action: Action, entry: IEntry) => void;
 
     /**
      * The language translator.
      */
-    translator?: ITranslator;
+    trans: TranslationBundle;
   }
 }
 
 /**
  * List view widget for extensions
  */
-export function ListView(props: ListView.IProperties): React.ReactElement<any> {
-  const translator = props.translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  const entryViews = [];
-  for (const entry of props.entries) {
-    entryViews.push(
-      <ListEntry
-        entry={entry}
-        listMode={props.listMode}
-        viewType={props.viewType}
-        key={entry.name}
-        performAction={props.performAction}
-        translator={translator}
-      />
-    );
-  }
-  let pagination;
-  if (props.numPages > 1) {
-    pagination = (
-      <div className="jp-extensionmanager-pagination">
-        <ReactPaginate
-          previousLabel={'<'}
-          nextLabel={'>'}
-          breakLabel={<a href="">...</a>}
-          breakClassName={'break-me'}
-          pageCount={props.numPages}
-          marginPagesDisplayed={2}
-          pageRangeDisplayed={5}
-          onPageChange={(data: { selected: number }) =>
-            props.onPage(data.selected)
-          }
-          containerClassName={'pagination'}
-          activeClassName={'active'}
-        />
-      </div>
-    );
-  }
-  const listview = (
-    <ul className="jp-extensionmanager-listview">{entryViews}</ul>
-  );
+function ListView(props: ListView.IProperties): React.ReactElement<any> {
+  const { canFetch, performAction, supportInstallation, trans } = props;
+
   return (
     <div className="jp-extensionmanager-listview-wrapper">
-      {entryViews.length > 0 ? (
-        listview
+      {props.entries.length > 0 ? (
+        <ul className="jp-extensionmanager-listview">
+          {props.entries.map(entry => (
+            <ListEntry
+              key={entry.name}
+              canFetch={canFetch}
+              entry={entry}
+              performAction={performAction}
+              supportInstallation={supportInstallation}
+              trans={trans}
+            />
+          ))}
+        </ul>
       ) : (
         <div key="message" className="jp-extensionmanager-listview-message">
           {trans.__('No entries')}
         </div>
       )}
-      {pagination}
+      {props.numPages > 1 && (
+        <div className="jp-extensionmanager-pagination">
+          <ReactPaginate
+            previousLabel={'<'}
+            nextLabel={'>'}
+            breakLabel="..."
+            breakClassName={'break'}
+            initialPage={(props.initialPage ?? 1) - 1}
+            pageCount={props.numPages}
+            marginPagesDisplayed={2}
+            pageRangeDisplayed={3}
+            onPageChange={(data: { selected: number }) =>
+              props.onPage(data.selected + 1)
+            }
+            activeClassName={'active'}
+          />
+        </div>
+      )}
     </div>
   );
 }
@@ -499,32 +276,37 @@ export function ListView(props: ListView.IProperties): React.ReactElement<any> {
 /**
  * The namespace for list view widget statics.
  */
-export namespace ListView {
+namespace ListView {
   export interface IProperties {
+    /**
+     * Whether thumbnails can be fetched from external webservices or not.
+     */
+    canFetch: boolean;
+
     /**
      * The extension entries to display.
      */
     entries: ReadonlyArray<IEntry>;
 
     /**
-     * The number of pages that can be viewed via pagination.
+     * Active page
      */
-    numPages: number;
+    initialPage?: number;
 
     /**
-     * The list mode to apply.
+     * The number of pages that can be viewed via pagination.
      */
-    listMode: 'block' | 'allow' | 'default' | 'invalid';
+    numPages: number;
 
     /**
-     * The requested view type.
+     * Whether the extension can be (un-)install or not.
      */
-    viewType: 'installed' | 'searchResult';
+    supportInstallation: boolean;
 
     /**
      * The language translator.
      */
-    translator?: ITranslator;
+    trans: TranslationBundle;
 
     /**
      * The callback to use for changing the page
@@ -533,17 +315,15 @@ export namespace ListView {
 
     /**
      * Callback to use for performing an action on an entry.
+     *
+     * Not provided if actions are not allowed.
      */
-    performAction: (action: Action, entry: IEntry) => void;
+    performAction?: (action: Action, entry: IEntry) => void;
   }
 }
 
 function ErrorMessage(props: ErrorMessage.IProperties) {
-  return (
-    <div key="error-msg" className="jp-extensionmanager-error">
-      {props.children}
-    </div>
-  );
+  return <div className="jp-extensionmanager-error">{props.children}</div>;
 }
 
 namespace ErrorMessage {
@@ -552,436 +332,202 @@ namespace ErrorMessage {
   }
 }
 
-/**
- *
- */
-export class CollapsibleSection extends React.Component<
-  CollapsibleSection.IProperties,
-  CollapsibleSection.IState
-> {
-  constructor(props: CollapsibleSection.IProperties) {
-    super(props);
-    this.state = {
-      isOpen: props.isOpen ? true : false
-    };
+class Header extends ReactWidget {
+  constructor(
+    protected model: ListModel,
+    protected trans: TranslationBundle,
+    protected searchInputRef: React.RefObject<HTMLInputElement>
+  ) {
+    super();
+    model.stateChanged.connect(this.update, this);
+    this.addClass('jp-extensionmanager-header');
   }
 
-  /**
-   * Render the collapsible section using the virtual DOM.
-   */
-  render(): React.ReactNode {
-    let icon = this.state.isOpen ? caretDownIconStyled : caretRightIconStyled;
-    let isOpen = this.state.isOpen;
-    let className = 'jp-extensionmanager-headerText';
-    if (this.props.disabled) {
-      icon = caretRightIconStyled;
-      isOpen = false;
-      className = 'jp-extensionmanager-headerTextDisabled';
-    }
+  render(): JSX.Element {
     return (
       <>
-        <div className="jp-stack-panel-header">
-          <ToolbarButtonComponent
-            icon={icon}
-            onClick={() => {
-              this.handleCollapse();
-            }}
-          />
-          <span className={className}>{this.props.header}</span>
-          {!this.props.disabled && this.props.headerElements}
+        <div className="jp-extensionmanager-title">
+          <span>{this.trans.__('%1 Manager', this.model.name)}</span>
+          {this.model.installPath && (
+            <infoIcon.react
+              className="jp-extensionmanager-path"
+              tag="span"
+              title={this.trans.__(
+                'Extension installation path: %1',
+                this.model.installPath
+              )}
+            ></infoIcon.react>
+          )}
         </div>
-        <Collapse isOpen={isOpen}>{this.props.children}</Collapse>
-      </>
-    );
-  }
+        <FilterBox
+          placeholder={this.trans.__('Search')}
+          disabled={!this.model.isDisclaimed}
+          updateFilter={(fn, query) => {
+            this.model.query = query ?? '';
+          }}
+          useFuzzyFilter={false}
+          inputRef={this.searchInputRef}
+        />
 
-  /**
-   * Handler for search input changes.
-   */
-  handleCollapse() {
-    this.setState(
-      {
-        isOpen: !this.state.isOpen
-      },
-      () => {
-        if (this.props.onCollapse) {
-          this.props.onCollapse(this.state.isOpen);
-        }
-      }
+        <div
+          className={`jp-extensionmanager-pending ${
+            this.model.hasPendingActions() ? 'jp-mod-hasPending' : ''
+          }`}
+        />
+        {this.model.actionError && (
+          <ErrorMessage>
+            <p>{this.trans.__('Error when performing an action.')}</p>
+            <p>{this.trans.__('Reason given:')}</p>
+            <pre>{this.model.actionError}</pre>
+          </ErrorMessage>
+        )}
+      </>
     );
   }
-
-  UNSAFE_componentWillReceiveProps(nextProps: CollapsibleSection.IProperties) {
-    if (nextProps.forceOpen) {
-      this.setState({
-        isOpen: true
-      });
-    }
-  }
-}
-
-/**
- * The namespace for collapsible section statics.
- */
-export namespace CollapsibleSection {
-  /**
-   * React properties for collapsible section component.
-   */
-  export interface IProperties {
-    /**
-     * The header string for section list.
-     */
-    header: string;
-
-    /**
-     * Whether the view will be expanded or collapsed initially, defaults to open.
-     */
-    isOpen?: boolean;
-
-    /**
-     * Handle collapse event.
-     */
-    onCollapse?: (isOpen: boolean) => void;
-
-    /**
-     * Any additional elements to add to the header.
-     */
-    headerElements?: React.ReactNode;
-
-    /**
-     * If given, this will be displayed instead of the children.
-     */
-    errorMessage?: string | null;
-
-    /**
-     * If true, the section will be collapsed and will not respond
-     * to open nor close actions.
-     */
-    disabled?: boolean;
-
-    /**
-     * If true, the section will be opened if not disabled.
-     */
-    forceOpen?: boolean;
-  }
-
-  /**
-   * React state for collapsible section component.
-   */
-  export interface IState {
-    /**
-     * Whether the section is expanded or collapsed.
-     */
-    isOpen: boolean;
-  }
 }
 
-/**
- * The main view for the discovery extension.
- */
-export class ExtensionView extends VDomRenderer<ListModel> {
-  protected translator: ITranslator;
-  private _trans: TranslationBundle;
-  private _settings: ISettingRegistry.ISettings;
-  private _forceOpen: boolean;
+class Warning extends ReactWidget {
   constructor(
-    app: JupyterFrontEnd,
-    serviceManager: ServiceManager,
-    settings: ISettingRegistry.ISettings,
-    translator?: ITranslator
+    protected model: ListModel,
+    protected trans: TranslationBundle
   ) {
-    super(new ListModel(app, serviceManager, settings, translator));
-    this.translator = translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
-    this._settings = settings;
-    this._forceOpen = false;
-    this.addClass('jp-extensionmanager-view');
-  }
-
-  /**
-   * The search input node.
-   */
-  get inputNode(): HTMLInputElement {
-    return this.node.querySelector(
-      '.jp-extensionmanager-search-wrapper input'
-    ) as HTMLInputElement;
+    super();
+    this.addClass('jp-extensionmanager-disclaimer');
+    model.stateChanged.connect(this.update, this);
   }
 
-  /**
-   * Render the extension view using the virtual DOM.
-   */
-  protected render(): React.ReactElement<any>[] {
-    const model = this.model!;
-    if (!model.listMode) {
-      return [<div key="empty"></div>];
-    }
-    if (model.listMode === 'invalid') {
-      return [
-        <div style={{ padding: 8 }} key="invalid">
-          <div>
-            {this._trans
-              .__(`The extension manager is disabled. Please contact your system
-administrator to verify the listings configuration.`)}
-          </div>
-          <div>
-            <a
-              href="https://jupyterlab.readthedocs.io/en/3.6.x/user/extensions.html"
-              target="_blank"
-              rel="noopener noreferrer"
-            >
-              {this._trans.__('Read more in the JupyterLab documentation.')}
-            </a>
-          </div>
-        </div>
-      ];
-    }
-    const pages = Math.ceil(model.totalEntries / model.pagination);
-    const elements = [
-      <SearchBar
-        key="searchbar"
-        placeholder={this._trans.__('SEARCH')}
-        disabled={!ListModel.isDisclaimed()}
-        settings={this._settings}
-      />
-    ];
-    if (model.promptBuild) {
-      elements.push(
-        <BuildPrompt
-          key="promt"
-          translator={this.translator}
-          performBuild={() => {
-            model.performBuild();
-          }}
-          ignoreBuild={() => {
-            model.ignoreBuildRecommendation();
-          }}
-        />
-      );
-    }
-    // Indicator element for pending actions:
-    elements.push(
-      <div
-        key="pending"
-        className={`jp-extensionmanager-pending ${
-          model.hasPendingActions() ? 'jp-mod-hasPending' : ''
-        }`}
-      />
-    );
-    const content = [];
-    content.push(
-      <CollapsibleSection
-        key="warning-section"
-        isOpen={!ListModel.isDisclaimed()}
-        disabled={false}
-        header={this._trans.__('Warning')}
-      >
-        <div className="jp-extensionmanager-disclaimer">
-          <p>
-            {this._trans
-              .__(`The JupyterLab development team is excited to have a robust
+  render(): JSX.Element {
+    return (
+      <>
+        <p>
+          {this.trans
+            .__(`The JupyterLab development team is excited to have a robust
 third-party extension community. However, we do not review
 third-party extensions, and some extensions may introduce security
 risks or contain malicious code that runs on your machine. Moreover in order
-to work, this panel needs to fetch data from web services.`)}
-            <br />
-            <a
-              href="https://jupyterlab.readthedocs.io/en/3.6.x/privacy_policies.html"
-              target="_blank"
-              rel="noreferrer"
+to work, this panel needs to fetch data from web services. Do you agree to
+activate this feature?`)}
+          <br />
+          <a
+            href="https://jupyterlab.readthedocs.io/en/stable/privacy_policies.html"
+            target="_blank"
+            rel="noreferrer"
+          >
+            {this.trans.__('Please read the privacy policy.')}
+          </a>
+        </p>
+        {this.model.isDisclaimed ? (
+          <Button
+            className="jp-extensionmanager-disclaimer-disable"
+            onClick={(e: React.MouseEvent<Element, MouseEvent>) => {
+              this.model.isDisclaimed = false;
+            }}
+            title={this.trans.__('This will withdraw your consent.')}
+          >
+            {this.trans.__('No')}
+          </Button>
+        ) : (
+          <div>
+            <Button
+              className="jp-extensionmanager-disclaimer-enable"
+              onClick={() => {
+                this.model.isDisclaimed = true;
+              }}
             >
-              {this._trans.__('Please read the privacy policy.')}
-            </a>
-          </p>
-          <div style={{ paddingTop: 8 }}>
-            {ListModel.isDisclaimed() && (
-              <Button
-                className="jp-extensionmanager-disclaimer-disable"
-                onClick={(e: React.MouseEvent<Element, MouseEvent>) => {
-                  this._settings.set('disclaimed', false).catch(reason => {
-                    console.error(
-                      `Something went wrong when setting disclaimed.\n${reason}`
-                    );
-                  });
-                }}
-              >
-                {this._trans.__('Disable')}
-              </Button>
-            )}
-            {!ListModel.isDisclaimed() && (
-              <Button
-                className="jp-extensionmanager-disclaimer-enable"
-                onClick={(e: React.MouseEvent<Element, MouseEvent>) => {
-                  this._forceOpen = true;
-                  this._settings.set('disclaimed', true).catch(reason => {
-                    console.error(
-                      `Something went wrong when setting disclaimed.\n${reason}`
-                    );
-                  });
-                }}
-              >
-                {this._trans.__('Enable')}
-              </Button>
-            )}
+              {this.trans.__('Yes')}
+            </Button>
+            <Button
+              className="jp-extensionmanager-disclaimer-disable"
+              onClick={() => {
+                this.model.isEnabled = false;
+              }}
+              title={this.trans.__(
+                'This will disable the extension manager panel; including the listing of installed extension.'
+              )}
+            >
+              {this.trans.__('No, disable')}
+            </Button>
           </div>
-        </div>
-      </CollapsibleSection>
+        )}
+      </>
     );
-    if (!model.initialized) {
-      content.push(
-        <div key="loading-placeholder" className="jp-extensionmanager-loader">
-          {this._trans.__('Updating extensions list')}
-        </div>
-      );
-    } else if (model.serverConnectionError !== null) {
-      content.push(
-        <ErrorMessage key="error-msg">
-          <p>
-            {this._trans
-              .__(`Error communicating with server extension. Consult the documentation
-            for how to ensure that it is enabled.`)}
-          </p>
-
-          <p>{this._trans.__('Reason given:')}</p>
-          <pre>{model.serverConnectionError}</pre>
-        </ErrorMessage>
-      );
-    } else if (model.serverRequirementsError !== null) {
-      content.push(
-        <ErrorMessage key="server-requirements-error">
-          <p>
-            {this._trans.__(
-              'The server has some missing requirements for installing extensions.'
-            )}
-          </p>
+  }
+}
 
-          <p>{this._trans.__('Details:')}</p>
-          <pre>{model.serverRequirementsError}</pre>
-        </ErrorMessage>
-      );
-    } else {
-      // List installed and discovery sections
+class InstalledList extends ReactWidget {
+  constructor(
+    protected model: ListModel,
+    protected trans: TranslationBundle
+  ) {
+    super();
+    model.stateChanged.connect(this.update, this);
+  }
 
-      const installedContent = [];
-      if (model.installedError !== null) {
-        installedContent.push(
-          <ErrorMessage key="install-error">
+  render(): JSX.Element {
+    return (
+      <>
+        {this.model.installedError !== null ? (
+          <ErrorMessage>
             {`Error querying installed extensions${
-              model.installedError ? `: ${model.installedError}` : '.'
+              this.model.installedError ? `: ${this.model.installedError}` : '.'
             }`}
           </ErrorMessage>
-        );
-      } else {
-        const query = new RegExp(model.query?.toLowerCase() ?? '');
-        installedContent.push(
+        ) : this.model.isLoadingInstalledExtensions ? (
+          <div className="jp-extensionmanager-loader">
+            {this.trans.__('Updating extensions list…')}
+          </div>
+        ) : (
           <ListView
-            key="installed-items"
-            listMode={model.listMode}
-            viewType={'installed'}
-            entries={model.installed.filter(
-              pkg => !model.query || query.test(pkg.name)
+            canFetch={this.model.isDisclaimed}
+            entries={this.model.installed.filter(pkg =>
+              new RegExp(this.model.query.toLowerCase()).test(pkg.name)
             )}
             numPages={1}
-            translator={this.translator}
+            trans={this.trans}
             onPage={value => {
               /* no-op */
             }}
-            performAction={this.onAction.bind(this)}
-          />
-        );
-      }
-
-      content.push(
-        <CollapsibleSection
-          key="installed-section"
-          isOpen={ListModel.isDisclaimed()}
-          forceOpen={this._forceOpen}
-          disabled={!ListModel.isDisclaimed()}
-          header={this._trans.__('Installed')}
-          headerElements={
-            <ToolbarButtonComponent
-              key="refresh-button"
-              icon={refreshIcon}
-              onClick={() => {
-                model.refreshInstalled();
-              }}
-              tooltip={this._trans.__('Refresh extension list')}
-            />
-          }
-        >
-          {installedContent}
-        </CollapsibleSection>
-      );
-
-      const searchContent = [];
-      if (model.searchError !== null) {
-        searchContent.push(
-          <ErrorMessage key="search-error">
-            {`Error searching for extensions${
-              model.searchError ? `: ${model.searchError}` : '.'
-            }`}
-          </ErrorMessage>
-        );
-      } else {
-        searchContent.push(
-          <ListView
-            key="search-items"
-            listMode={model.listMode}
-            viewType={'searchResult'}
-            // Filter out installed extensions:
-            entries={model.searchResult.filter(
-              entry => model.installed.indexOf(entry) === -1
-            )}
-            numPages={pages}
-            onPage={value => {
-              this.onPage(value);
-            }}
-            performAction={this.onAction.bind(this)}
-            translator={this.translator}
-          />
-        );
-      }
-
-      content.push(
-        <CollapsibleSection
-          key="search-section"
-          isOpen={ListModel.isDisclaimed()}
-          forceOpen={this._forceOpen}
-          disabled={!ListModel.isDisclaimed()}
-          header={
-            model.query
-              ? this._trans.__('Search Results')
-              : this._trans.__('Discover')
-          }
-          onCollapse={(isOpen: boolean) => {
-            if (isOpen && model.query === null) {
-              model.query = '';
+            performAction={
+              this.model.isDisclaimed ? this.onAction.bind(this) : null
             }
-          }}
-        >
-          {searchContent}
-        </CollapsibleSection>
-      );
-    }
-
-    elements.push(
-      <div key="content" className="jp-extensionmanager-content">
-        {content}
-      </div>
+            supportInstallation={
+              this.model.canInstall && this.model.isDisclaimed
+            }
+          />
+        )}
+      </>
     );
-
-    // Reset the force open for future usage.
-    this._forceOpen = false;
-
-    return elements;
   }
 
   /**
-   * Callback handler for the user specifies a new search query.
+   * Callback handler for when the user wants to perform an action on an extension.
    *
-   * @param value The new query.
+   * @param action The action to perform.
+   * @param entry The entry to perform the action on.
    */
-  onSearch(value: string) {
-    this.model!.query = value;
+  onAction(action: Action, entry: IEntry): Promise<void> {
+    switch (action) {
+      case 'install':
+        return this.model.install(entry);
+      case 'uninstall':
+        return this.model.uninstall(entry);
+      case 'enable':
+        return this.model.enable(entry);
+      case 'disable':
+        return this.model.disable(entry);
+      default:
+        throw new Error(`Invalid action: ${action}`);
+    }
+  }
+}
+
+class SearchResult extends ReactWidget {
+  constructor(
+    protected model: ListModel,
+    protected trans: TranslationBundle
+  ) {
+    super();
+    model.stateChanged.connect(this.update, this);
   }
 
   /**
@@ -989,8 +535,8 @@ to work, this panel needs to fetch data from web services.`)}
    *
    * @param value The pagination page number.
    */
-  onPage(value: number) {
-    this.model!.page = value;
+  onPage(value: number): void {
+    this.model.page = value;
   }
 
   /**
@@ -999,21 +545,142 @@ to work, this panel needs to fetch data from web services.`)}
    * @param action The action to perform.
    * @param entry The entry to perform the action on.
    */
-  onAction(action: Action, entry: IEntry) {
+  onAction(action: Action, entry: IEntry): Promise<void> {
     switch (action) {
       case 'install':
-        return this.model!.install(entry);
+        return this.model.install(entry);
       case 'uninstall':
-        return this.model!.uninstall(entry);
+        return this.model.uninstall(entry);
       case 'enable':
-        return this.model!.enable(entry);
+        return this.model.enable(entry);
       case 'disable':
-        return this.model!.disable(entry);
+        return this.model.disable(entry);
       default:
         throw new Error(`Invalid action: ${action}`);
     }
   }
 
+  render(): JSX.Element {
+    return (
+      <>
+        {this.model.searchError !== null ? (
+          <ErrorMessage>
+            {`Error searching for extensions${
+              this.model.searchError ? `: ${this.model.searchError}` : '.'
+            }`}
+          </ErrorMessage>
+        ) : this.model.isSearching ? (
+          <div className="jp-extensionmanager-loader">
+            {this.trans.__('Updating extensions list…')}
+          </div>
+        ) : (
+          <ListView
+            canFetch={this.model.isDisclaimed}
+            entries={this.model.searchResult}
+            initialPage={this.model.page}
+            numPages={this.model.lastPage}
+            onPage={value => {
+              this.onPage(value);
+            }}
+            performAction={
+              this.model.isDisclaimed ? this.onAction.bind(this) : null
+            }
+            supportInstallation={
+              this.model.canInstall && this.model.isDisclaimed
+            }
+            trans={this.trans}
+          />
+        )}
+      </>
+    );
+  }
+
+  update(): void {
+    this.title.label = this.model.query
+      ? this.trans.__('Search Results')
+      : this.trans.__('Discover');
+    super.update();
+  }
+}
+
+export namespace ExtensionsPanel {
+  export interface IOptions {
+    model: ListModel;
+    translator: ITranslator;
+  }
+}
+
+export class ExtensionsPanel extends SidePanel {
+  constructor(options: ExtensionsPanel.IOptions) {
+    const { model, translator } = options;
+    super({ translator });
+    this.model = model;
+    this._searchInputRef = React.createRef<HTMLInputElement>();
+    this.addClass('jp-extensionmanager-view');
+
+    this.trans = translator.load('jupyterlab');
+
+    this.header.addWidget(new Header(model, this.trans, this._searchInputRef));
+
+    const warning = new Warning(model, this.trans);
+    warning.title.label = this.trans.__('Warning');
+
+    this.addWidget(warning);
+
+    const installed = new PanelWithToolbar();
+    installed.addClass('jp-extensionmanager-installedlist');
+    installed.title.label = this.trans.__('Installed');
+
+    installed.toolbar.addItem(
+      'refresh',
+      new ToolbarButton({
+        icon: refreshIcon,
+        onClick: () => {
+          model.refreshInstalled(true).catch(reason => {
+            console.error(
+              `Failed to refresh the installed extensions list:\n${reason}`
+            );
+          });
+        },
+        tooltip: this.trans.__('Refresh extensions list')
+      })
+    );
+
+    installed.addWidget(new InstalledList(model, this.trans));
+
+    this.addWidget(installed);
+
+    if (this.model.canInstall) {
+      const searchResults = new SearchResult(model, this.trans);
+      searchResults.addClass('jp-extensionmanager-searchresults');
+      this.addWidget(searchResults);
+    }
+
+    this._wasDisclaimed = this.model.isDisclaimed;
+    if (this.model.isDisclaimed) {
+      (this.content as AccordionPanel).collapse(0);
+      (this.content.layout as AccordionLayout).setRelativeSizes([0, 1, 1]);
+    } else {
+      // If warning is not disclaimed expand only the warning panel
+      (this.content as AccordionPanel).expand(0);
+      (this.content as AccordionPanel).collapse(1);
+      (this.content as AccordionPanel).collapse(2);
+    }
+
+    this.model.stateChanged.connect(this._onStateChanged, this);
+  }
+
+  /**
+   * Dispose of the widget and its descendant widgets.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this.model.stateChanged.disconnect(this._onStateChanged, this);
+    super.dispose();
+  }
+
   /**
    * Handle the DOM events for the extension manager search bar.
    *
@@ -1026,9 +693,6 @@ to work, this panel needs to fetch data from web services.`)}
    */
   handleEvent(event: Event): void {
     switch (event.type) {
-      case 'input':
-        this.onSearch(this.inputNode.value);
-        break;
       case 'focus':
       case 'blur':
         this._toggleFocused();
@@ -1042,16 +706,25 @@ to work, this panel needs to fetch data from web services.`)}
    * A message handler invoked on a `'before-attach'` message.
    */
   protected onBeforeAttach(msg: Message): void {
-    this.node.addEventListener('input', this);
     this.node.addEventListener('focus', this, true);
     this.node.addEventListener('blur', this, true);
+    super.onBeforeAttach(msg);
+  }
+
+  protected onBeforeShow(msg: Message): void {
+    if (!this._wasInitialized) {
+      this._wasInitialized = true;
+      this.model.refreshInstalled().catch(reason => {
+        console.log(`Failed to refresh installed extension list:\n${reason}`);
+      });
+    }
   }
 
   /**
    * A message handler invoked on an `'after-detach'` message.
    */
   protected onAfterDetach(msg: Message): void {
-    this.node.removeEventListener('input', this);
+    super.onAfterDetach(msg);
     this.node.removeEventListener('focus', this, true);
     this.node.removeEventListener('blur', this, true);
   }
@@ -1061,19 +734,35 @@ to work, this panel needs to fetch data from web services.`)}
    */
   protected onActivateRequest(msg: Message): void {
     if (this.isAttached) {
-      const input = this.inputNode;
+      const input = this._searchInputRef.current;
       if (input) {
         input.focus();
         input.select();
       }
     }
+    super.onActivateRequest(msg);
+  }
+
+  private _onStateChanged(): void {
+    if (!this._wasDisclaimed && this.model.isDisclaimed) {
+      (this.content as AccordionPanel).collapse(0);
+      (this.content as AccordionPanel).expand(1);
+      (this.content as AccordionPanel).expand(2);
+    }
+    this._wasDisclaimed = this.model.isDisclaimed;
   }
 
   /**
    * Toggle the focused modifier based on the input node focus state.
    */
   private _toggleFocused(): void {
-    const focused = document.activeElement === this.inputNode;
+    const focused = document.activeElement === this._searchInputRef.current;
     this.toggleClass('lm-mod-focused', focused);
   }
+
+  protected model: ListModel;
+  protected trans: TranslationBundle;
+  private _searchInputRef: React.RefObject<HTMLInputElement>;
+  private _wasInitialized = false;
+  private _wasDisclaimed = true;
 }
diff --git a/packages/extensionmanager/style/base.css b/packages/extensionmanager/style/base.css
index 4e3e16e73171..1423d10b0753 100644
--- a/packages/extensionmanager/style/base.css
+++ b/packages/extensionmanager/style/base.css
@@ -1,28 +1,58 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /*
   Main widget layout and styling
 */
 
-.jp-extensionmanager-view {
-  padding-bottom: 0px;
-  color: var(--jp-ui-font-color1);
-  background: var(--jp-layout-color1);
+.jp-extensionmanager-view .lm-SplitPanel-child {
+  overflow-y: auto;
+}
+
+.jp-extensionmanager-header {
+  width: 100%;
+}
+
+.jp-extensionmanager-title {
   display: flex;
-  flex-direction: column;
-  font-size: var(--jp-ui-font-size1);
+  margin: 4px 10px 0;
 }
 
-.jp-extensionmanager-content {
-  overflow: auto;
-  overflow-x: hidden;
+.jp-extensionmanager-title svg {
+  width: 14px;
 }
 
-/*
-  Jupyter Org
-*/
+.jp-extensionmanager-title .jp-icon3[fill] {
+  fill: currentcolor;
+}
 
-.jp-extensionmanager-is-jupyter-org {
-  font-size: var(--jp-ui-font-size0);
-  color: var(--jp-ui-font-color2);
+.jp-extensionmanager-path {
+  display: inline flex;
+  padding-left: 4px;
+}
+
+.jp-extensionmanager-header .jp-FilterBox {
+  margin: 4px 10px 0;
+}
+
+.jp-extensionmanager-disclaimer {
+  padding: 0 8px;
+  min-height: 160px;
+}
+
+.jp-extensionmanager-disclaimer a {
+  color: var(--jp-content-link-color);
+}
+
+.jp-extensionmanager-disclaimer a:hover {
+  color: var(--jp-content-link-color);
+  text-decoration: underline;
+}
+
+.jp-extensionmanager-disclaimer .jp-Button {
+  margin: 0 5px;
 }
 
 /*
@@ -32,10 +62,9 @@
 .jp-extensionmanager-listview-wrapper {
   margin: 0;
   padding: 0;
-  padding-bottom: 8px;
   display: flex;
   flex-direction: column;
-  flex: 0 0 auto;
+  height: 100%;
 }
 
 .jp-extensionmanager-listview {
@@ -43,6 +72,8 @@
   margin: 0;
   padding: 0;
   min-height: 0;
+  flex: 1 1 auto;
+  overflow: auto;
 }
 
 .jp-extensionmanager-disclaimer a {
@@ -58,61 +89,8 @@
   Section headers
 */
 
-.jp-extensionmanager-view .jp-stack-panel-header {
-  display: flex;
-  justify-content: space-between;
-  flex: 0 0 auto;
-  margin: 0px;
-  padding-bottom: 8px;
-  font-weight: 600;
-  text-transform: uppercase;
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
-  letter-spacing: 1px;
-  font-size: var(--jp-ui-font-size0);
-  line-height: 24px;
-  height: 24px;
-  padding: 4px;
-}
-
-.jp-extensionmanager-view .jp-stack-panel-header > .jp-ToolbarButtonComponent {
-  padding: 0px 2px;
-}
-
-.jp-extensionmanager-view
-  .jp-stack-panel-header
-  .jp-extensionmanager-headerText {
-  flex: 1 0 auto;
-  margin: 0px 4px;
-}
-
-.jp-extensionmanager-view
-  .jp-stack-panel-header
-  .jp-extensionmanager-headerTextDisabled {
-  flex: 1 0 auto;
-  margin: 0px 4px;
-  color: var(--jp-layout-color3);
-}
-
-.jp-extensionmanager-view .jp-stack-panel-header > .jp-ToolbarButtonComponent {
-  border: 1px solid transparent;
-  background-color: var(--jp-layout-color1);
-  color: var(--jp-ui-font-color1);
-}
-
-.jp-extensionmanager-view
-  .jp-stack-panel-header
-  > .jp-ToolbarButtonComponent:hover {
-  /* border: 1px solid var(--jp-brand-color1); */
-}
-
-/*
-  Listing messages
-*/
-
-.jp-extensionmanager-listingmessage {
-  background-color: var(--jp-brand-color1);
-  color: var(--jp-ui-inverse-font-color1);
-  padding: 4px 8px;
+.jp-extensionmanager-view .jp-SidePanel-header .jp-extensionmanager-error {
+  text-transform: none;
   font-size: var(--jp-ui-font-size1);
   font-weight: 400;
 }
@@ -125,71 +103,44 @@
   white-space: pre-wrap;
 }
 
-/*
-  Search bar layout and styling
-*/
-
-.jp-extensionmanager-search-bar {
-  padding: 4px;
-}
-
-.jp-extensionmanager-disclaimer {
-  color: var(--jp-ui-font-color1);
-  font-size: var(--jp-ui-font-size1);
-  font-weight: normal;
-  margin: 8px 8px 8px 32px;
-}
-
-.jp-extensionmanager-search-wrapper input {
-  background: transparent;
-  font-size: var(--jp-ui-font-size1);
-  color: var(--jp-ui-font-color0);
-  line-height: var(--jp-private-commandpalette-search-height);
-  box-sizing: border-box;
-  border-radius: 0;
-}
-
-.jp-extensionmanager-search-wrapper input:focus {
-  box-shadow: inset 0 0 0 1px var(--jp-input-active-box-shadow-color),
-    inset 0 0 0 3px var(--jp-input-active-box-shadow-color);
-}
-
 /*
   List view pagination styling
 */
 
 .jp-extensionmanager-view ul.pagination {
-  display: inline-block;
-  padding-left: 0px;
-  padding-right: 0px;
+  display: flex;
+  justify-content: center;
+  padding-left: 0;
+  padding-right: 0;
 }
 
-.jp-extensionmanager-view .pagination li {
+.jp-extensionmanager-pagination li {
   display: inline-block;
 }
 
-.jp-extensionmanager-view .pagination li a {
+/* stylelint-disable selector-max-type */
+.jp-extensionmanager-pagination li > a {
   padding: 0 5px;
-  margin: 0 5px;
+  cursor: pointer;
 }
+/* stylelint-enable selector-max-type */
 
-.jp-extensionmanager-view .pagination li.active a {
+.jp-extensionmanager-pagination li.active > a {
   background: var(--jp-brand-color1);
-  color: #fff;
+  color: var(--jp-layout-color1);
 }
 
-.jp-extensionmanager-view .pagination li a:hover {
+.jp-extensionmanager-pagination li > a:hover {
   background-color: var(--jp-layout-color2);
-  color: unset;
 }
 
-.jp-extensionmanager-view .pagination .break a {
+.jp-extensionmanager-pagination .break > a {
   cursor: default;
 }
 
-.jp-extensionmanager-pagination {
-  display: flex;
-  justify-content: center;
+.jp-extensionmanager-installedlist,
+.jp-extensionmanager-searchresults {
+  min-height: 100px;
 }
 
 /*
@@ -204,12 +155,16 @@
 .jp-extensionmanager-entry-description {
   min-width: 0;
   flex-grow: 1;
+  font-size: var(--jp-ui-font-size1);
+  color: var(--jp-ui-font-color2);
+  font-weight: 400;
 }
 
 .jp-extensionmanager-entry-title {
   display: flex;
   flex-direction: row;
   justify-content: space-between;
+  align-items: center;
 }
 
 .jp-extensionmanager-entry.jp-extensionmanager-entry-should-be-uninstalled {
@@ -228,9 +183,6 @@
   padding-left: 4px;
 }
 
-.jp-extensionmanager-entry.jp-extensionmanager-entry-warning {
-}
-
 .jp-extensionmanager-entry-name {
   font-size: var(--jp-ui-font-size1);
   font-weight: 600;
@@ -254,12 +206,6 @@
   text-decoration: underline;
 }
 
-.jp-extensionmanager-entry-description {
-  font-size: var(--jp-ui-font-size1);
-  color: var(--jp-ui-font-color2);
-  font-weight: 400;
-}
-
 .jp-extensionmanager-loader,
 .jp-extensionmanager-error,
 .jp-extensionmanager-listview-message {
@@ -289,7 +235,7 @@
   background-color: var(--jp-layout-color1);
 }
 
-.jp-extensionmanager-pending.jp-mod-hasPending:before {
+.jp-extensionmanager-pending.jp-mod-hasPending::before {
   display: block;
   position: absolute;
   content: '';
@@ -302,23 +248,28 @@
 }
 
 @keyframes loading {
-  from {
+  0% {
     left: -200px;
     width: 30%;
   }
+
   50% {
     width: 30%;
   }
+
   70% {
     width: 70%;
   }
+
   80% {
     left: 50%;
   }
+
   95% {
     left: 120%;
   }
-  to {
+
+  100% {
     left: 100%;
   }
 }
@@ -328,7 +279,7 @@
 */
 
 .jp-extensionmanager-disclaimer-disable {
-  background-color: var(--jp-brand-color1) !important;
+  background-color: var(--jp-reject-color-normal) !important;
   color: white !important;
   border: 0;
   background-image: none !important;
@@ -348,7 +299,8 @@
 .jp-extensionmanager-entry-buttons {
   display: flex;
   flex-direction: row;
-  padding-top: 4px;
+  padding-block-start: 4px;
+  justify-content: flex-end;
 }
 
 /*
diff --git a/packages/extensionmanager/style/index.css b/packages/extensionmanager/style/index.css
index 05db54131bfb..38237a5e1956 100644
--- a/packages/extensionmanager/style/index.css
+++ b/packages/extensionmanager/style/index.css
@@ -4,8 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-@import url('~@jupyterlab/application/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/extensionmanager/style/index.js b/packages/extensionmanager/style/index.js
index 72eac10751a7..714d25e16c3d 100644
--- a/packages/extensionmanager/style/index.js
+++ b/packages/extensionmanager/style/index.js
@@ -4,8 +4,8 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
-import '@jupyterlab/application/style/index.js';
 
 import './base.css';
diff --git a/packages/extensionmanager/tsconfig.json b/packages/extensionmanager/tsconfig.json
index fefc51884b5a..755d77728dac 100644
--- a/packages/extensionmanager/tsconfig.json
+++ b/packages/extensionmanager/tsconfig.json
@@ -6,9 +6,6 @@
   },
   "include": ["src/*"],
   "references": [
-    {
-      "path": "../application"
-    },
     {
       "path": "../apputils"
     },
@@ -18,9 +15,6 @@
     {
       "path": "../services"
     },
-    {
-      "path": "../settingregistry"
-    },
     {
       "path": "../translation"
     },
diff --git a/packages/filebrowser-extension/package.json b/packages/filebrowser-extension/package.json
index 1e5d2799a424..17f9d0055e90 100644
--- a/packages/filebrowser-extension/package.json
+++ b/packages/filebrowser-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/filebrowser-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Filebrowser Widget Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,28 +38,26 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/filebrowser-extension/schema/browser.json b/packages/filebrowser-extension/schema/browser.json
index 9ad13f13a13b..17e215492910 100644
--- a/packages/filebrowser-extension/schema/browser.json
+++ b/packages/filebrowser-extension/schema/browser.json
@@ -6,10 +6,6 @@
       {
         "id": "jp-mainmenu-file",
         "items": [
-          {
-            "command": "filebrowser:create-main-launcher",
-            "rank": 1
-          },
           {
             "type": "separator",
             "rank": 1
@@ -32,23 +28,6 @@
             "rank": 9.95
           }
         ]
-      },
-      {
-        "id": "jp-mainmenu-settings",
-        "items": [
-          {
-            "type": "separator",
-            "rank": 5
-          },
-          {
-            "command": "filebrowser:toggle-navigate-to-current-directory",
-            "rank": 5
-          },
-          {
-            "type": "separator",
-            "rank": 5
-          }
-        ]
       }
     ],
     "context": [
@@ -84,7 +63,7 @@
       },
       {
         "command": "filebrowser:copy",
-        "selector": ".jp-DirListing-item[data-isdir=\"false\"]",
+        "selector": ".jp-DirListing-item[data-isdir]",
         "rank": 8
       },
       {
@@ -122,10 +101,25 @@
         "selector": ".jp-DirListing-header",
         "rank": 14
       },
+      {
+        "command": "filebrowser:toggle-file-size",
+        "selector": ".jp-DirListing-header",
+        "rank": 15
+      },
+      {
+        "command": "filebrowser:toggle-file-checkboxes",
+        "selector": ".jp-DirListing-header",
+        "rank": 16
+      },
+      {
+        "command": "filebrowser:toggle-sort-notebooks-first",
+        "selector": ".jp-DirListing-header",
+        "rank": 17
+      },
       {
         "command": "filebrowser:share-main",
         "selector": ".jp-DirListing-item[data-isdir]",
-        "rank": 15
+        "rank": 17
       },
       {
         "type": "separator",
@@ -148,14 +142,9 @@
   "description": "File Browser settings.",
   "jupyter.lab.shortcuts": [
     {
-      "command": "filebrowser:create-main-launcher",
-      "keys": ["Accel Shift L"],
-      "selector": "body"
-    },
-    {
-      "command": "filebrowser:toggle-main",
-      "keys": ["Accel Shift F"],
-      "selector": "body"
+      "command": "filebrowser:go-up",
+      "keys": ["Backspace"],
+      "selector": ".jp-DirListing:focus"
     },
     {
       "command": "filebrowser:go-up",
@@ -218,10 +207,28 @@
       "description": "Whether to show the last modified column",
       "default": true
     },
+    "showFileSizeColumn": {
+      "type": "boolean",
+      "title": "Show file size column",
+      "description": "Whether to show the file size column",
+      "default": false
+    },
     "showHiddenFiles": {
       "type": "boolean",
       "title": "Show hidden files",
-      "description": "Whether to show hidden files",
+      "description": "Whether to show hidden files. The server parameter `ContentsManager.allow_hidden` must be set to `True` to display hidden files.",
+      "default": false
+    },
+    "showFileCheckboxes": {
+      "type": "boolean",
+      "title": "Use checkboxes to select items",
+      "description": "Whether to show checkboxes next to files and folders",
+      "default": false
+    },
+    "sortNotebooksFirst": {
+      "type": "boolean",
+      "title": "When sorting by name, group notebooks before other files",
+      "description": "Whether to group the notebooks away from files",
       "default": false
     }
   },
diff --git a/packages/filebrowser-extension/schema/widget.json b/packages/filebrowser-extension/schema/widget.json
index 0e4cbc196b99..e331aa2ac942 100644
--- a/packages/filebrowser-extension/schema/widget.json
+++ b/packages/filebrowser-extension/schema/widget.json
@@ -3,20 +3,53 @@
   "description": "File Browser widget settings.",
   "jupyter.lab.toolbars": {
     "FileBrowser": [
-      {
-        "name": "new-launcher",
-        "command": "filebrowser:create-main-launcher",
-        "rank": 1
-      },
       {
         "name": "new-directory",
         "command": "filebrowser:create-new-directory",
         "rank": 10
       },
       { "name": "uploader", "rank": 20 },
-      { "name": "refresh", "command": "filebrowser:refresh", "rank": 30 }
+      { "name": "refresh", "command": "filebrowser:refresh", "rank": 30 },
+      { "name": "fileNameSearcher", "rank": 40 }
+    ]
+  },
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "command": "filebrowser:toggle-main",
+            "rank": 1
+          }
+        ]
+      },
+      {
+        "id": "jp-mainmenu-settings",
+        "items": [
+          {
+            "type": "separator",
+            "rank": 5
+          },
+          {
+            "command": "filebrowser:toggle-navigate-to-current-directory",
+            "rank": 5
+          },
+          {
+            "type": "separator",
+            "rank": 5
+          }
+        ]
+      }
     ]
   },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "filebrowser:toggle-main",
+      "keys": ["Accel Shift F"],
+      "selector": "body"
+    }
+  ],
   "jupyter.lab.transform": true,
   "properties": {
     "toolbar": {
@@ -62,6 +95,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/filebrowser-extension/src/index.ts b/packages/filebrowser-extension/src/index.ts
index c0ed80618c73..48e425e7a9a3 100644
--- a/packages/filebrowser-extension/src/index.ts
+++ b/packages/filebrowser-extension/src/index.ts
@@ -11,7 +11,8 @@ import {
   IRouter,
   ITreePathUpdater,
   JupyterFrontEnd,
-  JupyterFrontEndPlugin
+  JupyterFrontEndPlugin,
+  JupyterLab
 } from '@jupyterlab/application';
 import {
   Clipboard,
@@ -19,7 +20,6 @@ import {
   ICommandPalette,
   InputDialog,
   IToolbarWidgetRegistry,
-  MainAreaWidget,
   setToolbar,
   showErrorMessage,
   WidgetTracker
@@ -31,11 +31,11 @@ import {
   FileBrowser,
   FileUploadStatus,
   FilterFileBrowserModel,
+  IDefaultFileBrowser,
   IFileBrowserCommands,
   IFileBrowserFactory,
   Uploader
 } from '@jupyterlab/filebrowser';
-import { Launcher } from '@jupyterlab/launcher';
 import { Contents } from '@jupyterlab/services';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStateDB } from '@jupyterlab/statedb';
@@ -49,8 +49,10 @@ import {
   downloadIcon,
   editIcon,
   fileIcon,
+  FilenameSearcher,
   folderIcon,
   IDisposableMenuItem,
+  IScore,
   linkIcon,
   markdownIcon,
   newFolderIcon,
@@ -60,12 +62,17 @@ import {
   stopIcon,
   textEditorIcon
 } from '@jupyterlab/ui-components';
-import { find, IIterator, map, reduce, toArray } from '@lumino/algorithm';
+import { find, map } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import { ContextMenu } from '@lumino/widgets';
-import { JSONObject } from '@lumino/coreutils';
 
 const FILE_BROWSER_FACTORY = 'FileBrowser';
+const FILE_BROWSER_PLUGIN_ID = '@jupyterlab/filebrowser-extension:browser';
+
+/**
+ * The class name added to the filebrowser filterbox node.
+ */
+const FILTERBOX_CLASS = 'jp-FileBrowser-filterBox';
 
 /**
  * The command IDs used by the file browser plugin.
@@ -75,9 +82,6 @@ namespace CommandIDs {
 
   export const copyDownloadLink = 'filebrowser:copy-download-link';
 
-  // For main browser only.
-  export const createLauncher = 'filebrowser:create-main-launcher';
-
   export const cut = 'filebrowser:cut';
 
   export const del = 'filebrowser:delete';
@@ -131,9 +135,16 @@ namespace CommandIDs {
 
   export const toggleLastModified = 'filebrowser:toggle-last-modified';
 
+  export const toggleFileSize = 'filebrowser:toggle-file-size';
+
+  export const toggleSortNotebooksFirst =
+    'filebrowser:toggle-sort-notebooks-first';
+
   export const search = 'filebrowser:search';
 
   export const toggleHiddenFiles = 'filebrowser:toggle-hidden-files';
+
+  export const toggleFileCheckboxes = 'filebrowser:toggle-file-checkboxes';
 }
 
 /**
@@ -145,8 +156,9 @@ const namespace = 'filebrowser';
  * The default file browser extension.
  */
 const browser: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/filebrowser-extension:browser',
-  requires: [IFileBrowserFactory, ITranslator],
+  id: FILE_BROWSER_PLUGIN_ID,
+  description: 'Set up the default file browser (commands, settings,...).',
+  requires: [IDefaultFileBrowser, IFileBrowserFactory, ITranslator],
   optional: [
     ILayoutRestorer,
     ISettingRegistry,
@@ -157,6 +169,7 @@ const browser: JupyterFrontEndPlugin<void> = {
   autoStart: true,
   activate: async (
     app: JupyterFrontEnd,
+    defaultFileBrowser: IDefaultFileBrowser,
     factory: IFileBrowserFactory,
     translator: ITranslator,
     restorer: ILayoutRestorer | null,
@@ -164,8 +177,7 @@ const browser: JupyterFrontEndPlugin<void> = {
     treePathUpdater: ITreePathUpdater | null,
     commandPalette: ICommandPalette | null
   ): Promise<void> => {
-    const trans = translator.load('jupyterlab');
-    const browser = factory.defaultBrowser;
+    const browser = defaultFileBrowser;
 
     // Let the application restorer track the primary file browser (that is
     // automatically created) for restoration of application state (e.g. setting
@@ -183,25 +195,14 @@ const browser: JupyterFrontEndPlugin<void> = {
       await browser.model.cd(preferredPath);
     }
 
-    addCommands(app, factory, translator, settingRegistry, commandPalette);
-
-    // Show the current file browser shortcut in its title.
-    const updateBrowserTitle = () => {
-      const binding = find(
-        app.commands.keyBindings,
-        b => b.command === CommandIDs.toggleBrowser
-      );
-      if (binding) {
-        const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
-        browser.title.caption = trans.__('File Browser (%1)', ks);
-      } else {
-        browser.title.caption = trans.__('File Browser');
-      }
-    };
-    updateBrowserTitle();
-    app.commands.keyBindingChanged.connect(() => {
-      updateBrowserTitle();
-    });
+    addCommands(
+      app,
+      browser,
+      factory,
+      translator,
+      settingRegistry,
+      commandPalette
+    );
 
     return void Promise.all([app.restored, browser.model.restored]).then(() => {
       if (treePathUpdater) {
@@ -211,41 +212,40 @@ const browser: JupyterFrontEndPlugin<void> = {
       }
 
       if (settingRegistry) {
-        void settingRegistry
-          .load('@jupyterlab/filebrowser-extension:browser')
-          .then(settings => {
-            /**
-             * File browser configuration.
-             */
-            const fileBrowserConfig = {
-              navigateToCurrentDirectory: false,
-              showLastModifiedColumn: true,
-              useFuzzyFilter: true,
-              showHiddenFiles: false
-            };
-            const fileBrowserModelConfig = {
-              filterDirectories: true
-            };
-
-            function onSettingsChanged(
-              settings: ISettingRegistry.ISettings
-            ): void {
-              for (const key in fileBrowserConfig) {
-                const value = settings.get(key).composite as boolean;
-                fileBrowserConfig[
-                  key as keyof typeof fileBrowserConfig
-                ] = value;
-                browser[key as keyof typeof fileBrowserConfig] = value;
-              }
-
-              const value = settings.get('filterDirectories')
-                .composite as boolean;
-              fileBrowserModelConfig.filterDirectories = value;
-              browser.model.filterDirectories = value;
+        void settingRegistry.load(FILE_BROWSER_PLUGIN_ID).then(settings => {
+          /**
+           * File browser configuration.
+           */
+          const fileBrowserConfig = {
+            navigateToCurrentDirectory: false,
+            showLastModifiedColumn: true,
+            showFileSizeColumn: false,
+            showHiddenFiles: false,
+            showFileCheckboxes: false,
+            sortNotebooksFirst: false
+          };
+          const fileBrowserModelConfig = {
+            filterDirectories: true
+          };
+
+          function onSettingsChanged(
+            settings: ISettingRegistry.ISettings
+          ): void {
+            let key: keyof typeof fileBrowserConfig;
+            for (key in fileBrowserConfig) {
+              const value = settings.get(key).composite as boolean;
+              fileBrowserConfig[key] = value;
+              browser[key] = value;
             }
-            settings.changed.connect(onSettingsChanged);
-            onSettingsChanged(settings);
-          });
+
+            const value = settings.get('filterDirectories')
+              .composite as boolean;
+            fileBrowserModelConfig.filterDirectories = value;
+            browser.model.filterDirectories = value;
+          }
+          settings.changed.connect(onSettingsChanged);
+          onSettingsChanged(settings);
+        });
       }
     });
   }
@@ -256,19 +256,17 @@ const browser: JupyterFrontEndPlugin<void> = {
  */
 const factory: JupyterFrontEndPlugin<IFileBrowserFactory> = {
   id: '@jupyterlab/filebrowser-extension:factory',
+  description: 'Provides the file browser factory.',
   provides: IFileBrowserFactory,
   requires: [IDocumentManager, ITranslator],
-  optional: [IStateDB, IRouter, JupyterFrontEnd.ITreeResolver, ILabShell],
+  optional: [IStateDB, JupyterLab.IInfo],
   activate: async (
     app: JupyterFrontEnd,
     docManager: IDocumentManager,
     translator: ITranslator,
     state: IStateDB | null,
-    router: IRouter | null,
-    tree: JupyterFrontEnd.ITreeResolver | null,
-    labShell: ILabShell | null
+    info: JupyterLab.IInfo | null
   ): Promise<IFileBrowserFactory> => {
-    const { commands } = app;
     const tracker = new WidgetTracker<FileBrowser>({ namespace });
     const createFileBrowser = (
       id: string,
@@ -280,6 +278,12 @@ const factory: JupyterFrontEndPlugin<IFileBrowserFactory> = {
         manager: docManager,
         driveName: options.driveName || '',
         refreshInterval: options.refreshInterval,
+        refreshStandby: () => {
+          if (info) {
+            return !info.isConnected || 'when-hidden';
+          }
+          return 'when-hidden';
+        },
         state:
           options.state === null
             ? undefined
@@ -294,8 +298,30 @@ const factory: JupyterFrontEndPlugin<IFileBrowserFactory> = {
       return widget;
     };
 
+    return { createFileBrowser, tracker };
+  }
+};
+
+/**
+ * The default file browser factory provider.
+ */
+const defaultFileBrowser: JupyterFrontEndPlugin<IDefaultFileBrowser> = {
+  id: '@jupyterlab/filebrowser-extension:default-file-browser',
+  description: 'Provides the default file browser',
+  provides: IDefaultFileBrowser,
+  requires: [IFileBrowserFactory],
+  optional: [IRouter, JupyterFrontEnd.ITreeResolver, ILabShell],
+  activate: async (
+    app: JupyterFrontEnd,
+    fileBrowserFactory: IFileBrowserFactory,
+    router: IRouter | null,
+    tree: JupyterFrontEnd.ITreeResolver | null,
+    labShell: ILabShell | null
+  ): Promise<IDefaultFileBrowser> => {
+    const { commands } = app;
+
     // Manually restore and load the default file browser.
-    const defaultBrowser = createFileBrowser('filebrowser', {
+    const defaultBrowser = fileBrowserFactory.createFileBrowser('filebrowser', {
       auto: false,
       restore: false
     });
@@ -307,7 +333,7 @@ const factory: JupyterFrontEndPlugin<IFileBrowserFactory> = {
       app,
       labShell
     );
-    return { createFileBrowser, defaultBrowser, tracker };
+    return defaultBrowser;
   }
 };
 
@@ -320,6 +346,8 @@ const factory: JupyterFrontEndPlugin<IFileBrowserFactory> = {
  */
 const downloadPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:download',
+  description:
+    'Adds the download file commands. Disabling this plugin will NOT disable downloading files from the server, if the user enters the appropriate download URLs.',
   requires: [IFileBrowserFactory, ITranslator],
   autoStart: true,
   activate: (
@@ -351,11 +379,16 @@ const downloadPlugin: JupyterFrontEndPlugin<void> = {
         }
 
         return widget.model.manager.services.contents
-          .getDownloadUrl(widget.selectedItems().next()!.path)
+          .getDownloadUrl(widget.selectedItems().next()!.value.path)
           .then(url => {
             Clipboard.copyToSystem(url);
           });
       },
+      isVisible: () =>
+        // So long as this command only handles one file at time, don't show it
+        // if multiple files are selected.
+        !!tracker.currentWidget &&
+        Array.from(tracker.currentWidget.selectedItems()).length === 1,
       icon: copyIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Copy Download Link'),
       mnemonic: 0
@@ -368,8 +401,10 @@ const downloadPlugin: JupyterFrontEndPlugin<void> = {
  */
 const browserWidget: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:widget',
+  description: 'Adds the file browser to the application shell.',
   requires: [
     IDocumentManager,
+    IDefaultFileBrowser,
     IFileBrowserFactory,
     ISettingRegistry,
     IToolbarWidgetRegistry,
@@ -377,18 +412,23 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
     ILabShell,
     IFileBrowserCommands
   ],
+  optional: [ICommandPalette],
   autoStart: true,
   activate: (
     app: JupyterFrontEnd,
     docManager: IDocumentManager,
+    browser: IDefaultFileBrowser,
     factory: IFileBrowserFactory,
-    settings: ISettingRegistry,
+    settingRegistry: ISettingRegistry,
     toolbarRegistry: IToolbarWidgetRegistry,
     translator: ITranslator,
-    labShell: ILabShell
+    labShell: ILabShell,
+    // Wait until file browser commands are ready before activating file browser widget
+    fileBrowserCommands: null,
+    commandPalette: ICommandPalette | null
   ): void => {
     const { commands } = app;
-    const { defaultBrowser: browser, tracker } = factory;
+    const { tracker } = factory;
     const trans = translator.load('jupyterlab');
 
     // Set attributes when adding the browser to the UI
@@ -396,31 +436,87 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
     browser.node.setAttribute('aria-label', trans.__('File Browser Section'));
     browser.title.icon = folderIcon;
 
+    // Show the current file browser shortcut in its title.
+    const updateBrowserTitle = () => {
+      const binding = find(
+        app.commands.keyBindings,
+        b => b.command === CommandIDs.toggleBrowser
+      );
+      if (binding) {
+        const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
+        browser.title.caption = trans.__('File Browser (%1)', ks);
+      } else {
+        browser.title.caption = trans.__('File Browser');
+      }
+    };
+    updateBrowserTitle();
+    app.commands.keyBindingChanged.connect(() => {
+      updateBrowserTitle();
+    });
+
     // Toolbar
-    toolbarRegistry.registerFactory(
+    toolbarRegistry.addFactory(
       FILE_BROWSER_FACTORY,
       'uploader',
       (browser: FileBrowser) =>
         new Uploader({ model: browser.model, translator })
     );
 
+    toolbarRegistry.addFactory(
+      FILE_BROWSER_FACTORY,
+      'fileNameSearcher',
+      (browser: FileBrowser) => {
+        const searcher = FilenameSearcher({
+          updateFilter: (
+            filterFn: (item: string) => Partial<IScore> | null,
+            query?: string
+          ) => {
+            browser.model.setFilter(value => {
+              return filterFn(value.name.toLowerCase());
+            });
+          },
+          useFuzzyFilter: true,
+          placeholder: trans.__('Filter files by name'),
+          forceRefresh: true
+        });
+        searcher.addClass(FILTERBOX_CLASS);
+        return searcher;
+      }
+    );
+
     setToolbar(
       browser,
       createToolbarFactory(
         toolbarRegistry,
-        settings,
+        settingRegistry,
         FILE_BROWSER_FACTORY,
         browserWidget.id,
         translator
       )
     );
 
-    labShell.add(browser, 'left', { rank: 100 });
+    labShell.add(browser, 'left', { rank: 100, type: 'File Browser' });
+
+    commands.addCommand(CommandIDs.toggleBrowser, {
+      label: trans.__('File Browser'),
+      execute: () => {
+        if (browser.isHidden) {
+          return commands.execute(CommandIDs.showBrowser, void 0);
+        }
+
+        return commands.execute(CommandIDs.hideBrowser, void 0);
+      }
+    });
 
     commands.addCommand(CommandIDs.showBrowser, {
+      label: trans.__('Open the file browser for the provided `path`.'),
       execute: args => {
         const path = (args.path as string) || '';
-        const browserForPath = Private.getBrowserForPath(path, factory);
+        const browserForPath = Private.getBrowserForPath(
+          path,
+          browser,
+          factory
+        );
 
         // Check for browser not found
         if (!browserForPath) {
@@ -433,14 +529,11 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
         } else {
           const areas: ILabShell.Area[] = ['left', 'right'];
           for (const area of areas) {
-            const it = labShell.widgets(area);
-            let widget = it.next();
-            while (widget) {
+            for (const widget of labShell.widgets(area)) {
               if (widget.contains(browserForPath)) {
                 labShell.activateById(widget.id);
                 return;
               }
-              widget = it.next();
             }
           }
         }
@@ -448,6 +541,7 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
     });
 
     commands.addCommand(CommandIDs.hideBrowser, {
+      label: trans.__('Hide the file browser.'),
       execute: () => {
         const widget = tracker.currentWidget;
         if (widget && !widget.isHidden) {
@@ -456,6 +550,27 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
       }
     });
 
+    commands.addCommand(CommandIDs.toggleNavigateToCurrentDirectory, {
+      label: trans.__('Show Active File in File Browser'),
+      isToggled: () => browser.navigateToCurrentDirectory,
+      execute: () => {
+        const value = !browser.navigateToCurrentDirectory;
+        const key = 'navigateToCurrentDirectory';
+        return settingRegistry
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
+          .catch((reason: Error) => {
+            console.error(`Failed to set navigateToCurrentDirectory setting`);
+          });
+      }
+    });
+
+    if (commandPalette) {
+      commandPalette.addItem({
+        command: CommandIDs.toggleNavigateToCurrentDirectory,
+        category: trans.__('File Operations')
+      });
+    }
+
     // If the layout is a fresh session without saved data and not in single document
     // mode, open file browser.
     void labShell.restored.then(layout => {
@@ -465,21 +580,6 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
     });
 
     void Promise.all([app.restored, browser.model.restored]).then(() => {
-      function maybeCreate() {
-        // Create a launcher if there are no open items.
-        if (
-          labShell.isEmpty('main') &&
-          commands.hasCommand('launcher:create')
-        ) {
-          void Private.createLauncher(commands, browser);
-        }
-      }
-
-      // When layout is modified, create a launcher if there are no open items.
-      labShell.layoutModified.connect(() => {
-        maybeCreate();
-      });
-
       // Whether to automatically navigate to a document's current directory
       labShell.currentChanged.connect(async (_, change) => {
         if (browser.navigateToCurrentDirectory && change.newValue) {
@@ -488,7 +588,7 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
           if (context) {
             const { path } = context;
             try {
-              await Private.navigateToPath(path, factory, translator);
+              await Private.navigateToPath(path, browser, factory, translator);
             } catch (reason) {
               console.warn(
                 `${CommandIDs.goToPath} failed to open: ${path}`,
@@ -515,6 +615,8 @@ const browserWidget: JupyterFrontEndPlugin<void> = {
  */
 const shareFile: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:share-file',
+  description:
+    'Adds the "Copy Shareable Link" command; useful for JupyterHub deployment for example.',
   requires: [IFileBrowserFactory, ITranslator],
   autoStart: true,
   activate: (
@@ -530,21 +632,21 @@ const shareFile: JupyterFrontEndPlugin<void> = {
       execute: () => {
         const widget = tracker.currentWidget;
         const model = widget?.selectedItems().next();
-        if (!model) {
+        if (model === undefined || model.done) {
           return;
         }
 
         Clipboard.copyToSystem(
           PageConfig.getUrl({
             workspace: PageConfig.defaultWorkspace,
-            treePath: model.path,
+            treePath: model.value.path,
             toShare: true
           })
         );
       },
       isVisible: () =>
         !!tracker.currentWidget &&
-        toArray(tracker.currentWidget.selectedItems()).length === 1,
+        Array.from(tracker.currentWidget.selectedItems()).length === 1,
       icon: linkIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Copy Shareable Link')
     });
@@ -559,6 +661,8 @@ const shareFile: JupyterFrontEndPlugin<void> = {
  */
 const openWithPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:open-with',
+  description:
+    'Adds the open-with feature allowing an user to pick the non-preferred document viewer.',
   requires: [IFileBrowserFactory],
   autoStart: true,
   activate: (app: JupyterFrontEnd, factory: IFileBrowserFactory): void => {
@@ -588,17 +692,17 @@ const openWithPlugin: JupyterFrontEndPlugin<void> = {
       // get the widget factories that could be used to open all of the items
       // in the current filebrowser selection
       const factories = tracker.currentWidget
-        ? Private.OpenWith.intersection<string>(
+        ? Private.OpenWith.intersection<DocumentRegistry.WidgetFactory>(
             map(tracker.currentWidget.selectedItems(), i => {
               return Private.OpenWith.getFactories(docRegistry, i);
             })
           )
-        : new Set<string>();
+        : new Set<DocumentRegistry.WidgetFactory>();
 
       // make new menu items from the widget factories
       items = [...factories].map(factory =>
         openWith.addItem({
-          args: { factory: factory },
+          args: { factory: factory.name, label: factory.label || factory.name },
           command: CommandIDs.open
         })
       );
@@ -619,6 +723,7 @@ const openWithPlugin: JupyterFrontEndPlugin<void> = {
  */
 const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:open-browser-tab',
+  description: 'Adds the open-in-new-browser-tab features.',
   requires: [IFileBrowserFactory, ITranslator],
   autoStart: true,
   activate: (
@@ -641,7 +746,7 @@ const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
         const mode = args['mode'] as string | undefined;
 
         return Promise.all(
-          toArray(
+          Array.from(
             map(widget.selectedItems(), item => {
               if (mode === 'single-document') {
                 const url = PageConfig.getUrl({
@@ -679,6 +784,7 @@ const openBrowserTabPlugin: JupyterFrontEndPlugin<void> = {
  */
 export const fileUploadStatus: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:file-upload-status',
+  description: 'Adds a file upload status widget.',
   autoStart: true,
   requires: [IFileBrowserFactory, ITranslator],
   optional: [IStatusBar],
@@ -716,18 +822,18 @@ export const fileUploadStatus: JupyterFrontEndPlugin<void> = {
  */
 const openUrlPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/filebrowser-extension:open-url',
+  description: 'Adds the feature "Open files from remote URLs".',
   autoStart: true,
-  requires: [IFileBrowserFactory, ITranslator],
+  requires: [IDefaultFileBrowser, ITranslator],
   optional: [ICommandPalette],
   activate: (
     app: JupyterFrontEnd,
-    factory: IFileBrowserFactory,
+    browser: FileBrowser,
     translator: ITranslator,
     palette: ICommandPalette | null
   ) => {
     const { commands } = app;
     const trans = translator.load('jupyterlab');
-    const { defaultBrowser: browser } = factory;
     const command = CommandIDs.openUrl;
 
     commands.addCommand(command, {
@@ -798,6 +904,7 @@ const openUrlPlugin: JupyterFrontEndPlugin<void> = {
  */
 function addCommands(
   app: JupyterFrontEnd,
+  browser: FileBrowser,
   factory: IFileBrowserFactory,
   translator: ITranslator,
   settingRegistry: ISettingRegistry | null,
@@ -805,7 +912,7 @@ function addCommands(
 ): void {
   const trans = translator.load('jupyterlab');
   const { docRegistry: registry, commands } = app;
-  const { defaultBrowser: browser, tracker } = factory;
+  const { tracker } = factory;
 
   commands.addCommand(CommandIDs.del, {
     execute: () => {
@@ -858,13 +965,23 @@ function addCommands(
   });
 
   commands.addCommand(CommandIDs.goToPath, {
+    label: trans.__('Update the file browser to display the provided `path`.'),
     execute: async args => {
       const path = (args.path as string) || '';
       const showBrowser = !(args?.dontShowBrowser ?? false);
       try {
-        const item = await Private.navigateToPath(path, factory, translator);
+        const item = await Private.navigateToPath(
+          path,
+          browser,
+          factory,
+          translator
+        );
         if (item.type !== 'directory' && showBrowser) {
-          const browserForPath = Private.getBrowserForPath(path, factory);
+          const browserForPath = Private.getBrowserForPath(
+            path,
+            browser,
+            factory
+          );
           if (browserForPath) {
             browserForPath.clearSelectedItems();
             const parts = path.split('/');
@@ -886,24 +1003,13 @@ function addCommands(
   commands.addCommand(CommandIDs.goUp, {
     label: 'go up',
     execute: async () => {
-      const browserForPath = Private.getBrowserForPath('', factory);
+      const browserForPath = Private.getBrowserForPath('', browser, factory);
       if (!browserForPath) {
         return;
       }
       const { model } = browserForPath;
-
       await model.restored;
-      if (model.path === model.rootPath) {
-        return;
-      }
-      try {
-        await model.cd('..');
-      } catch (reason) {
-        console.warn(
-          `${CommandIDs.goUp} failed to go to parent directory of ${model.path}`,
-          reason
-        );
-      }
+      void browserForPath.goUp();
     }
   });
 
@@ -936,7 +1042,11 @@ function addCommands(
           // The normal contents service errors on paths ending in slash
           path = path.slice(0, path.length - 1);
         }
-        const browserForPath = Private.getBrowserForPath(path, factory)!;
+        const browserForPath = Private.getBrowserForPath(
+          path,
+          browser,
+          factory
+        )!;
         const { services } = browserForPath.model.manager;
         const item = await services.contents.get(path, {
           content: false
@@ -980,7 +1090,7 @@ function addCommands(
 
       const { contents } = widget.model.manager.services;
       return Promise.all(
-        toArray(
+        Array.from(
           map(widget.selectedItems(), item => {
             if (item.type === 'directory') {
               const localPath = contents.localPath(item.path);
@@ -1007,7 +1117,6 @@ function addCommands(
         return folderIcon.bindprops({ stylesheet: 'menuItem' });
       }
     },
-    // FIXME-TRANS: Is this localizable?
     label: args =>
       (args['label'] || args['factory'] || trans.__('Open')) as string,
     mnemonic: 0
@@ -1083,6 +1192,11 @@ function addCommands(
         return widget.rename();
       }
     },
+    isVisible: () =>
+      // So long as this command only handles one file at time, don't show it
+      // if multiple files are selected.
+      !!tracker.currentWidget &&
+      Array.from(tracker.currentWidget.selectedItems()).length === 1,
     icon: editIcon.bindprops({ stylesheet: 'menuItem' }),
     label: trans.__('Rename'),
     mnemonic: 0
@@ -1095,15 +1209,17 @@ function addCommands(
         return;
       }
       const item = widget.selectedItems().next();
-      if (!item) {
+      if (item.done) {
         return;
       }
 
-      Clipboard.copyToSystem(item.path);
+      Clipboard.copyToSystem(item.value.path);
     },
     isVisible: () =>
+      // So long as this command only handles one file at time, don't show it
+      // if multiple files are selected.
       !!tracker.currentWidget &&
-      tracker.currentWidget.selectedItems().next !== undefined,
+      Array.from(tracker.currentWidget.selectedItems()).length === 1,
     icon: fileIcon.bindprops({ stylesheet: 'menuItem' }),
     label: trans.__('Copy Path')
   });
@@ -1120,53 +1236,49 @@ function addCommands(
     label: trans.__('Shut Down Kernel')
   });
 
-  commands.addCommand(CommandIDs.toggleBrowser, {
+  commands.addCommand(CommandIDs.toggleLastModified, {
+    label: trans.__('Show Last Modified Column'),
+    isToggled: () => browser.showLastModifiedColumn,
     execute: () => {
-      if (browser.isHidden) {
-        return commands.execute(CommandIDs.showBrowser, void 0);
-      }
-
-      return commands.execute(CommandIDs.hideBrowser, void 0);
-    }
-  });
-
-  commands.addCommand(CommandIDs.createLauncher, {
-    label: trans.__('New Launcher'),
-    icon: args => (args.toolbar ? addIcon : undefined),
-    execute: (args: JSONObject) => {
-      if (commands.hasCommand('launcher:create')) {
-        return Private.createLauncher(commands, browser, args);
+      const value = !browser.showLastModifiedColumn;
+      const key = 'showLastModifiedColumn';
+      if (settingRegistry) {
+        return settingRegistry
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
+          .catch((reason: Error) => {
+            console.error(`Failed to set ${key} setting`);
+          });
       }
     }
   });
 
-  if (settingRegistry) {
-    commands.addCommand(CommandIDs.toggleNavigateToCurrentDirectory, {
-      label: trans.__('Show Active File in File Browser'),
-      isToggled: () => browser.navigateToCurrentDirectory,
-      execute: () => {
-        const value = !browser.navigateToCurrentDirectory;
-        const key = 'navigateToCurrentDirectory';
+  commands.addCommand(CommandIDs.toggleSortNotebooksFirst, {
+    label: trans.__('Sort Notebooks Above Files'),
+    isToggled: () => browser.sortNotebooksFirst,
+    execute: () => {
+      const value = !browser.sortNotebooksFirst;
+      const key = 'sortNotebooksFirst';
+      if (settingRegistry) {
         return settingRegistry
-          .set('@jupyterlab/filebrowser-extension:browser', key, value)
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
           .catch((reason: Error) => {
-            console.error(`Failed to set navigateToCurrentDirectory setting`);
+            console.error(`Failed to set ${key} setting`);
           });
       }
-    });
-  }
+    }
+  });
 
-  commands.addCommand(CommandIDs.toggleLastModified, {
-    label: trans.__('Show Last Modified Column'),
-    isToggled: () => browser.showLastModifiedColumn,
+  commands.addCommand(CommandIDs.toggleFileSize, {
+    label: trans.__('Show File Size Column'),
+    isToggled: () => browser.showFileSizeColumn,
     execute: () => {
-      const value = !browser.showLastModifiedColumn;
-      const key = 'showLastModifiedColumn';
+      const value = !browser.showFileSizeColumn;
+      const key = 'showFileSizeColumn';
       if (settingRegistry) {
         return settingRegistry
-          .set('@jupyterlab/filebrowser-extension:browser', key, value)
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
           .catch((reason: Error) => {
-            console.error(`Failed to set showLastModifiedColumn setting`);
+            console.error(`Failed to set ${key} setting`);
           });
       }
     }
@@ -1181,7 +1293,7 @@ function addCommands(
       const key = 'showHiddenFiles';
       if (settingRegistry) {
         return settingRegistry
-          .set('@jupyterlab/filebrowser-extension:browser', key, value)
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
           .catch((reason: Error) => {
             console.error(`Failed to set showHiddenFiles setting`);
           });
@@ -1189,53 +1301,58 @@ function addCommands(
     }
   });
 
+  commands.addCommand(CommandIDs.toggleFileCheckboxes, {
+    label: trans.__('Show File Checkboxes'),
+    isToggled: () => browser.showFileCheckboxes,
+    execute: () => {
+      const value = !browser.showFileCheckboxes;
+      const key = 'showFileCheckboxes';
+      if (settingRegistry) {
+        return settingRegistry
+          .set(FILE_BROWSER_PLUGIN_ID, key, value)
+          .catch((reason: Error) => {
+            console.error(`Failed to set showFileCheckboxes setting`);
+          });
+      }
+    }
+  });
+
   commands.addCommand(CommandIDs.search, {
     label: trans.__('Search on File Names'),
     execute: () => alert('search')
   });
-
-  if (commandPalette) {
-    commandPalette.addItem({
-      command: CommandIDs.toggleNavigateToCurrentDirectory,
-      category: trans.__('File Operations')
-    });
-  }
 }
 
+/**
+ * Export the plugins as default.
+ */
+const plugins: JupyterFrontEndPlugin<any>[] = [
+  factory,
+  defaultFileBrowser,
+  browser,
+  shareFile,
+  fileUploadStatus,
+  downloadPlugin,
+  browserWidget,
+  openWithPlugin,
+  openBrowserTabPlugin,
+  openUrlPlugin
+];
+export default plugins;
+
 /**
  * A namespace for private module data.
  */
 namespace Private {
-  /**
-   * Create a launcher for a given filebrowser widget.
-   */
-  export function createLauncher(
-    commands: CommandRegistry,
-    browser: FileBrowser,
-    args?: JSONObject
-  ): Promise<MainAreaWidget<Launcher>> {
-    const { model } = browser;
-
-    return commands
-      .execute('launcher:create', { cwd: model.path, ...args })
-      .then((launcher: MainAreaWidget<Launcher>) => {
-        model.pathChanged.connect(() => {
-          if (launcher.content) {
-            launcher.content.cwd = model.path;
-          }
-        }, launcher);
-        return launcher;
-      });
-  }
-
   /**
    * Get browser object given file path.
    */
   export function getBrowserForPath(
     path: string,
+    browser: FileBrowser,
     factory: IFileBrowserFactory
   ): FileBrowser | undefined {
-    const { defaultBrowser: browser, tracker } = factory;
+    const { tracker } = factory;
     const driveName = browser.model.manager.services.contents.driveName(path);
 
     if (driveName) {
@@ -1263,11 +1380,12 @@ namespace Private {
    */
   export async function navigateToPath(
     path: string,
+    browser: FileBrowser,
     factory: IFileBrowserFactory,
     translator: ITranslator
   ): Promise<Contents.IModel> {
     const trans = translator.load('jupyterlab');
-    const browserForPath = Private.getBrowserForPath(path, factory);
+    const browserForPath = Private.getBrowserForPath(path, browser, factory);
     if (!browserForPath) {
       throw new Error(trans.__('No browser for path'));
     }
@@ -1333,31 +1451,13 @@ namespace Private {
       }
       browser.removeClass(restoring);
 
-      if (labShell?.isEmpty('main') && commands.hasCommand('launcher:create')) {
-        void Private.createLauncher(commands, browser);
+      if (labShell?.isEmpty('main')) {
+        void commands.execute('launcher:create');
       }
     };
     router.routed.connect(listener);
   }
-}
 
-/**
- * Export the plugins as default.
- */
-const plugins: JupyterFrontEndPlugin<any>[] = [
-  factory,
-  browser,
-  shareFile,
-  fileUploadStatus,
-  downloadPlugin,
-  browserWidget,
-  openWithPlugin,
-  openBrowserTabPlugin,
-  openUrlPlugin
-];
-export default plugins;
-
-namespace Private {
   export namespace OpenWith {
     /**
      * Get the factories for the selected item
@@ -1369,11 +1469,9 @@ namespace Private {
     export function getFactories(
       docRegistry: DocumentRegistry,
       item: Contents.IModel
-    ): Array<string> {
-      const factories = docRegistry
-        .preferredWidgetFactories(item.path)
-        .map(f => f.name);
-      const notebookFactory = docRegistry.getWidgetFactory('notebook')?.name;
+    ): Array<DocumentRegistry.WidgetFactory> {
+      const factories = docRegistry.preferredWidgetFactories(item.path);
+      const notebookFactory = docRegistry.getWidgetFactory('notebook');
       if (
         notebookFactory &&
         item.type === 'notebook' &&
@@ -1386,31 +1484,33 @@ namespace Private {
     }
 
     /**
-     * Return the intersection of multiple arrays.
+     * Return the intersection of multiple iterables.
      *
-     * @param iter Iterator of arrays
-     * @returns Set of common elements to all arrays
+     * @param iterables Iterator of iterables
+     * @returns Set of common elements to all iterables
      */
-    export function intersection<T>(iter: IIterator<Array<T>>): Set<T> {
-      // pop the first element of iter
-      const first = iter.next();
-      // first will be undefined if iter is empty
-      if (!first) {
-        return new Set<T>();
+    export function intersection<T>(iterables: Iterable<Iterable<T>>): Set<T> {
+      let accumulator: Set<T> | undefined = undefined;
+      for (const current of iterables) {
+        // Initialize accumulator.
+        if (accumulator === undefined) {
+          accumulator = new Set(current);
+          continue;
+        }
+        // Return early if empty.
+        if (accumulator.size === 0) {
+          return accumulator;
+        }
+        // Keep the intersection of accumulator and current.
+        let intersection = new Set<T>();
+        for (const value of current) {
+          if (accumulator.has(value)) {
+            intersection.add(value);
+          }
+        }
+        accumulator = intersection;
       }
-
-      // "initialize" the intersection from first
-      const isect = new Set(first);
-      // reduce over the remaining elements of iter
-      return reduce(
-        iter,
-        (isect, subarr) => {
-          // filter out all elements not present in both isect and subarr,
-          // accumulate result in new set
-          return new Set(subarr.filter(x => isect.has(x)));
-        },
-        isect
-      );
+      return accumulator ?? new Set();
     }
   }
 }
diff --git a/packages/filebrowser-extension/style/base.css b/packages/filebrowser-extension/style/base.css
index a40485e33918..c7cb30043d9f 100644
--- a/packages/filebrowser-extension/style/base.css
+++ b/packages/filebrowser-extension/style/base.css
@@ -6,3 +6,12 @@
 #filebrowser.jp-mod-restoring .jp-DirListing-content {
   display: none;
 }
+
+.jp-FileBrowser-filterBox {
+  padding: 0;
+  flex: 0 0 auto;
+}
+
+.jp-FileBrowser-filterBox input {
+  line-height: 24px;
+}
diff --git a/packages/filebrowser-extension/style/index.css b/packages/filebrowser-extension/style/index.css
index 8f48c1cca5f7..7e8ea61a95b4 100644
--- a/packages/filebrowser-extension/style/index.css
+++ b/packages/filebrowser-extension/style/index.css
@@ -6,12 +6,10 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
+@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/docmanager/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
-@import url('~@jupyterlab/launcher/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/filebrowser-extension/style/index.js b/packages/filebrowser-extension/style/index.js
index 7b36e45d86f3..ecd1c4b00e60 100644
--- a/packages/filebrowser-extension/style/index.js
+++ b/packages/filebrowser-extension/style/index.js
@@ -6,12 +6,11 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
+import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/docmanager/style/index.js';
 import '@jupyterlab/filebrowser/style/index.js';
-import '@jupyterlab/launcher/style/index.js';
 
 import './base.css';
diff --git a/packages/filebrowser-extension/tsconfig.json b/packages/filebrowser-extension/tsconfig.json
index b4132ab041bf..165d79daf549 100644
--- a/packages/filebrowser-extension/tsconfig.json
+++ b/packages/filebrowser-extension/tsconfig.json
@@ -24,9 +24,6 @@
     {
       "path": "../filebrowser"
     },
-    {
-      "path": "../launcher"
-    },
     {
       "path": "../services"
     },
diff --git a/packages/filebrowser/.vscode/launch.json b/packages/filebrowser/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/filebrowser/.vscode/launch.json
+++ b/packages/filebrowser/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/filebrowser/babel.config.js b/packages/filebrowser/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/filebrowser/babel.config.js
+++ b/packages/filebrowser/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/filebrowser/jest.config.js b/packages/filebrowser/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/filebrowser/jest.config.js
+++ b/packages/filebrowser/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/filebrowser/package.json b/packages/filebrowser/package.json
index f78291504ade..4f91ae8b2e91 100644
--- a/packages/filebrowser/package.json
+++ b/packages/filebrowser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/filebrowser",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - FileBrowser Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,40 +37,39 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/filebrowser/src/browser.ts b/packages/filebrowser/src/browser.ts
index d7fde430e24f..d1de8680e164 100644
--- a/packages/filebrowser/src/browser.ts
+++ b/packages/filebrowser/src/browser.ts
@@ -1,22 +1,12 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  FilenameSearcher,
-  IScore,
-  ReactWidget,
-  showErrorMessage,
-  Toolbar
-} from '@jupyterlab/apputils';
+import { showErrorMessage } from '@jupyterlab/apputils';
 import { IDocumentManager } from '@jupyterlab/docmanager';
 import { Contents, ServerConnection } from '@jupyterlab/services';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { IIterator } from '@lumino/algorithm';
-import { PanelLayout, Widget } from '@lumino/widgets';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { SidePanel } from '@jupyterlab/ui-components';
+import { Panel } from '@lumino/widgets';
 import { BreadCrumbs } from './crumbs';
 import { DirListing } from './listing';
 import { FilterFileBrowserModel } from './model';
@@ -27,14 +17,14 @@ import { FilterFileBrowserModel } from './model';
 const FILE_BROWSER_CLASS = 'jp-FileBrowser';
 
 /**
- * The class name added to the filebrowser crumbs node.
+ * The class name added to file browser panel (gather filter, breadcrumbs and listing).
  */
-const CRUMBS_CLASS = 'jp-FileBrowser-crumbs';
+const FILE_BROWSER_PANEL_CLASS = 'jp-FileBrowser-Panel';
 
 /**
- * The class name added to the filebrowser filterbox node.
+ * The class name added to the filebrowser crumbs node.
  */
-const FILTERBOX_CLASS = 'jp-FileBrowser-filterBox';
+const CRUMBS_CLASS = 'jp-FileBrowser-crumbs';
 
 /**
  * The class name added to the filebrowser toolbar node.
@@ -53,64 +43,51 @@ const LISTING_CLASS = 'jp-FileBrowser-listing';
  * and presents itself as a flat list of files and directories with
  * breadcrumbs.
  */
-export class FileBrowser extends Widget {
+export class FileBrowser extends SidePanel {
   /**
    * Construct a new file browser.
    *
    * @param options - The file browser options.
    */
   constructor(options: FileBrowser.IOptions) {
-    super();
+    super({ content: new Panel(), translator: options.translator });
     this.addClass(FILE_BROWSER_CLASS);
+    this.toolbar.addClass(TOOLBAR_CLASS);
     this.id = options.id;
+    const translator = (this.translator = options.translator ?? nullTranslator);
 
     const model = (this.model = options.model);
     const renderer = options.renderer;
-    const translator = this.translator;
 
     model.connectionFailure.connect(this._onConnectionFailure, this);
-    this.translator = options.translator || nullTranslator;
     this._manager = model.manager;
-    this._trans = this.translator.load('jupyterlab');
-    this.crumbs = new BreadCrumbs({ model, translator });
-    this.toolbar = new Toolbar<Widget>();
+
     // a11y
     this.toolbar.node.setAttribute('role', 'navigation');
     this.toolbar.node.setAttribute(
       'aria-label',
       this._trans.__('file browser')
     );
-    this._directoryPending = false;
+
+    // File browser widgets container
+    this.mainPanel = new Panel();
+    this.mainPanel.addClass(FILE_BROWSER_PANEL_CLASS);
+    this.mainPanel.title.label = this._trans.__('File Browser');
+
+    this.crumbs = new BreadCrumbs({ model, translator });
+    this.crumbs.addClass(CRUMBS_CLASS);
 
     this.listing = this.createDirListing({
       model,
       renderer,
-      translator: this.translator
-    });
-
-    this._filenameSearcher = FilenameSearcher({
-      updateFilter: (
-        filterFn: (item: string) => boolean | Partial<IScore> | null,
-        query?: string
-      ) => {
-        this.listing.model.setFilter(value => {
-          return filterFn(value.name.toLowerCase());
-        });
-      },
-      useFuzzyFilter: this._useFuzzyFilter,
-      placeholder: this._trans.__('Filter files by name')
+      translator
     });
-
-    this.crumbs.addClass(CRUMBS_CLASS);
-    this.toolbar.addClass(TOOLBAR_CLASS);
-    this._filenameSearcher.addClass(FILTERBOX_CLASS);
     this.listing.addClass(LISTING_CLASS);
 
-    this.layout = new PanelLayout();
-    this.layout.addWidget(this.toolbar);
-    this.layout.addWidget(this._filenameSearcher);
-    this.layout.addWidget(this.crumbs);
-    this.layout.addWidget(this.listing);
+    this.mainPanel.addWidget(this.crumbs);
+    this.mainPanel.addWidget(this.listing);
+
+    this.addWidget(this.mainPanel);
 
     if (options.restore !== false) {
       void model.restore(this.id);
@@ -122,16 +99,6 @@ export class FileBrowser extends Widget {
    */
   readonly model: FilterFileBrowserModel;
 
-  /**
-   * The toolbar used by the file browser.
-   */
-  readonly toolbar: Toolbar<Widget>;
-
-  /**
-   * Override Widget.layout with a more specific PanelLayout type.
-   */
-  layout: PanelLayout;
-
   /**
    * Whether to show active file in file browser
    */
@@ -160,33 +127,19 @@ export class FileBrowser extends Widget {
   }
 
   /**
-   * Whether to use fuzzy filtering on file names.
+   * Whether to show the file size column
    */
-  set useFuzzyFilter(value: boolean) {
-    this._useFuzzyFilter = value;
-
-    this._filenameSearcher = FilenameSearcher({
-      updateFilter: (
-        filterFn: (item: string) => boolean | Partial<IScore> | null,
-        query?: string
-      ) => {
-        this.listing.model.setFilter(value => {
-          return filterFn(value.name.toLowerCase());
-        });
-      },
-      useFuzzyFilter: this._useFuzzyFilter,
-      placeholder: this._trans.__('Filter files by name'),
-      forceRefresh: true
-    });
-    this._filenameSearcher.addClass(FILTERBOX_CLASS);
-
-    this.layout.removeWidget(this._filenameSearcher);
-    this.layout.removeWidget(this.crumbs);
-    this.layout.removeWidget(this.listing);
+  get showFileSizeColumn(): boolean {
+    return this._showFileSizeColumn;
+  }
 
-    this.layout.addWidget(this._filenameSearcher);
-    this.layout.addWidget(this.crumbs);
-    this.layout.addWidget(this.listing);
+  set showFileSizeColumn(value: boolean) {
+    if (this.listing.setColumnVisibility) {
+      this.listing.setColumnVisibility('file_size', value);
+      this._showFileSizeColumn = value;
+    } else {
+      console.warn('Listing does not support toggling column visibility');
+    }
   }
 
   /**
@@ -201,12 +154,44 @@ export class FileBrowser extends Widget {
     this._showHiddenFiles = value;
   }
 
+  /**
+   * Whether to show checkboxes next to files and folders
+   */
+  get showFileCheckboxes(): boolean {
+    return this._showFileCheckboxes;
+  }
+
+  set showFileCheckboxes(value: boolean) {
+    if (this.listing.setColumnVisibility) {
+      this.listing.setColumnVisibility('is_selected', value);
+      this._showFileCheckboxes = value;
+    } else {
+      console.warn('Listing does not support toggling column visibility');
+    }
+  }
+
+  /**
+   * Whether to sort notebooks above other files
+   */
+  get sortNotebooksFirst(): boolean {
+    return this._sortNotebooksFirst;
+  }
+
+  set sortNotebooksFirst(value: boolean) {
+    if (this.listing.setNotebooksFirstSorting) {
+      this.listing.setNotebooksFirstSorting(value);
+      this._sortNotebooksFirst = value;
+    } else {
+      console.warn('Listing does not support sorting notebooks first');
+    }
+  }
+
   /**
    * Create an iterator over the listing's selected items.
    *
    * @returns A new iterator over the listing's selected items.
    */
-  selectedItems(): IIterator<Contents.IModel> {
+  selectedItems(): IterableIterator<Contents.IModel> {
     return this.listing.selectedItems();
   }
 
@@ -255,63 +240,57 @@ export class FileBrowser extends Widget {
     return this.listing.paste();
   }
 
+  private async _createNew(
+    options: Contents.ICreateOptions
+  ): Promise<Contents.IModel> {
+    try {
+      const model = await this._manager.newUntitled(options);
+      await this.listing.selectItemByName(model.name, true);
+      await this.rename();
+      return model;
+    } catch (err) {
+      void showErrorMessage(this._trans.__('Error'), err);
+      throw err;
+    }
+  }
+
   /**
    * Create a new directory
    */
-  createNewDirectory(): void {
-    if (this._directoryPending === true) {
-      return;
+  async createNewDirectory(): Promise<Contents.IModel> {
+    if (this._directoryPending) {
+      return this._directoryPending;
+    }
+    this._directoryPending = this._createNew({
+      path: this.model.path,
+      type: 'directory'
+    });
+    try {
+      return await this._directoryPending;
+    } finally {
+      this._directoryPending = null;
     }
-    this._directoryPending = true;
-    // TODO: We should provide a hook into when the
-    // directory is done being created. This probably
-    // means storing a pendingDirectory promise and
-    // returning that if there is already a directory
-    // request.
-    void this._manager
-      .newUntitled({
-        path: this.model.path,
-        type: 'directory'
-      })
-      .then(async model => {
-        await this.listing.selectItemByName(model.name);
-        await this.rename();
-        this._directoryPending = false;
-      })
-      .catch(err => {
-        void showErrorMessage(this._trans.__('Error'), err);
-        this._directoryPending = false;
-      });
   }
 
   /**
    * Create a new file
    */
-  createNewFile(options: FileBrowser.IFileOptions): void {
-    if (this._filePending === true) {
-      return;
+  async createNewFile(
+    options: FileBrowser.IFileOptions
+  ): Promise<Contents.IModel> {
+    if (this._filePending) {
+      return this._filePending;
+    }
+    this._filePending = this._createNew({
+      path: this.model.path,
+      type: 'file',
+      ext: options.ext
+    });
+    try {
+      return await this._filePending;
+    } finally {
+      this._filePending = null;
     }
-    this._filePending = true;
-    // TODO: We should provide a hook into when the
-    // file is done being created. This probably
-    // means storing a pendingFile promise and
-    // returning that if there is already a file
-    // request.
-    void this._manager
-      .newUntitled({
-        path: this.model.path,
-        type: 'file',
-        ext: options.ext
-      })
-      .then(async model => {
-        await this.listing.selectItemByName(model.name);
-        await this.rename();
-        this._filePending = false;
-      })
-      .catch(err => {
-        void showErrorMessage(this._trans.__('Error'), err);
-        this._filePending = false;
-      });
   }
 
   /**
@@ -339,6 +318,15 @@ export class FileBrowser extends Widget {
     return this.listing.download();
   }
 
+  /**
+   * cd ..
+   *
+   * Go up one level in the directory tree.
+   */
+  async goUp() {
+    return this.listing.goUp();
+  }
+
   /**
    * Shut down kernels on the applicable currently selected items.
    *
@@ -408,15 +396,17 @@ export class FileBrowser extends Widget {
 
   protected listing: DirListing;
   protected crumbs: BreadCrumbs;
-  private _trans: TranslationBundle;
-  private _filenameSearcher: ReactWidget;
+  protected mainPanel: Panel;
+
   private _manager: IDocumentManager;
-  private _directoryPending: boolean;
-  private _filePending: boolean;
+  private _directoryPending: Promise<Contents.IModel> | null = null;
+  private _filePending: Promise<Contents.IModel> | null = null;
   private _navigateToCurrentDirectory: boolean;
   private _showLastModifiedColumn: boolean = true;
-  private _useFuzzyFilter: boolean = true;
+  private _showFileSizeColumn: boolean = false;
   private _showHiddenFiles: boolean = false;
+  private _showFileCheckboxes: boolean = false;
+  private _sortNotebooksFirst: boolean = false;
 }
 
 /**
diff --git a/packages/filebrowser/src/crumbs.ts b/packages/filebrowser/src/crumbs.ts
index b67e132a314b..0e6f30550a40 100644
--- a/packages/filebrowser/src/crumbs.ts
+++ b/packages/filebrowser/src/crumbs.ts
@@ -16,7 +16,7 @@ import {
 } from '@jupyterlab/ui-components';
 import { ArrayExt } from '@lumino/algorithm';
 import { ElementExt } from '@lumino/domutils';
-import { IDragEvent } from '@lumino/dragdrop';
+import { Drag } from '@lumino/dragdrop';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { FileBrowserModel } from './model';
@@ -98,16 +98,16 @@ export class BreadCrumbs extends Widget {
         this._evtClick(event as MouseEvent);
         break;
       case 'lm-dragenter':
-        this._evtDragEnter(event as IDragEvent);
+        this._evtDragEnter(event as Drag.Event);
         break;
       case 'lm-dragleave':
-        this._evtDragLeave(event as IDragEvent);
+        this._evtDragLeave(event as Drag.Event);
         break;
       case 'lm-dragover':
-        this._evtDragOver(event as IDragEvent);
+        this._evtDragOver(event as Drag.Event);
         break;
       case 'lm-drop':
-        this._evtDrop(event as IDragEvent);
+        this._evtDrop(event as Drag.Event);
         break;
       default:
         return;
@@ -206,7 +206,7 @@ export class BreadCrumbs extends Widget {
   /**
    * Handle the `'lm-dragenter'` event for the widget.
    */
-  private _evtDragEnter(event: IDragEvent): void {
+  private _evtDragEnter(event: Drag.Event): void {
     if (event.mimeData.hasData(CONTENTS_MIME)) {
       const index = ArrayExt.findFirstIndex(this._crumbs, node =>
         ElementExt.hitTest(node, event.clientX, event.clientY)
@@ -224,7 +224,7 @@ export class BreadCrumbs extends Widget {
   /**
    * Handle the `'lm-dragleave'` event for the widget.
    */
-  private _evtDragLeave(event: IDragEvent): void {
+  private _evtDragLeave(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     const dropTarget = DOMUtils.findElement(this.node, DROP_TARGET_CLASS);
@@ -236,7 +236,7 @@ export class BreadCrumbs extends Widget {
   /**
    * Handle the `'lm-dragover'` event for the widget.
    */
-  private _evtDragOver(event: IDragEvent): void {
+  private _evtDragOver(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     event.dropAction = event.proposedAction;
@@ -255,7 +255,7 @@ export class BreadCrumbs extends Widget {
   /**
    * Handle the `'lm-drop'` event for the widget.
    */
-  private _evtDrop(event: IDragEvent): void {
+  private _evtDrop(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     if (event.proposedAction === 'none') {
@@ -357,7 +357,7 @@ namespace Private {
   ): void {
     const node = breadcrumbs[0].parentNode as HTMLElement;
 
-    // Remove all but the root or preferred node.
+    // Remove all but the home or preferred node.
     const firstChild = node.firstChild as HTMLElement;
     while (firstChild && firstChild.nextSibling) {
       node.removeChild(firstChild.nextSibling);
diff --git a/packages/filebrowser/src/listing.ts b/packages/filebrowser/src/listing.ts
index 07daaa11c19e..5ab01c5fc0ad 100644
--- a/packages/filebrowser/src/listing.ts
+++ b/packages/filebrowser/src/listing.ts
@@ -26,19 +26,10 @@ import {
   classes,
   LabIcon
 } from '@jupyterlab/ui-components';
-import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  filter,
-  find,
-  IIterator,
-  StringExt,
-  toArray
-} from '@lumino/algorithm';
+import { ArrayExt, filter, StringExt } from '@lumino/algorithm';
 import { MimeData, PromiseDelegate } from '@lumino/coreutils';
 import { ElementExt } from '@lumino/domutils';
-import { Drag, IDragEvent } from '@lumino/dragdrop';
+import { Drag } from '@lumino/dragdrop';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
 import { h, VirtualDOM } from '@lumino/virtualdom';
@@ -95,6 +86,17 @@ const ITEM_ICON_CLASS = 'jp-DirListing-itemIcon';
  */
 const ITEM_MODIFIED_CLASS = 'jp-DirListing-itemModified';
 
+/**
+ * The class name added to the listing item file size cell.
+ */
+const ITEM_FILE_SIZE_CLASS = 'jp-DirListing-itemFileSize';
+
+/**
+ * The class name added to the label element that wraps each item's checkbox and
+ * the header's check-all checkbox.
+ */
+const CHECKBOX_WRAPPER_CLASS = 'jp-DirListing-checkboxWrapper';
+
 /**
  * The class name added to the dir listing editor node.
  */
@@ -110,6 +112,11 @@ const NAME_ID_CLASS = 'jp-id-name';
  */
 const MODIFIED_ID_CLASS = 'jp-id-modified';
 
+/**
+ * The class name added to the file size column header cell.
+ */
+const FILE_SIZE_ID_CLASS = 'jp-id-filesize';
+
 /**
  * The class name added to the narrow column header cell.
  */
@@ -120,6 +127,11 @@ const NARROW_ID_CLASS = 'jp-id-narrow';
  */
 const MODIFIED_COLUMN_HIDDEN = 'jp-LastModified-hidden';
 
+/**
+ * The class name added to the size column header cell and size item cell when hidden.
+ */
+const FILE_SIZE_COLUMN_HIDDEN = 'jp-FileSize-hidden';
+
 /**
  * The mime type for a contents drag object.
  */
@@ -216,6 +228,8 @@ export class DirListing extends Widget {
     this._renderer = options.renderer || DirListing.defaultRenderer;
 
     const headerNode = DOMUtils.findElement(this.node, HEADER_CLASS);
+    // hide the file size column by default
+    this._hiddenColumns.add('file_size');
     this._renderer.populateHeaderNode(
       headerNode,
       this.translator,
@@ -291,7 +305,7 @@ export class DirListing extends Widget {
    *
    * @returns A new iterator over the listing's selected items.
    */
-  selectedItems(): IIterator<Contents.IModel> {
+  selectedItems(): IterableIterator<Contents.IModel> {
     const items = this._sortedItems;
     return filter(items, item => this.selection[item.path]);
   }
@@ -301,15 +315,19 @@ export class DirListing extends Widget {
    *
    * @returns A new iterator over the listing's sorted items.
    */
-  sortedItems(): IIterator<Contents.IModel> {
-    return new ArrayIterator(this._sortedItems);
+  sortedItems(): IterableIterator<Contents.IModel> {
+    return this._sortedItems[Symbol.iterator]();
   }
 
   /**
    * Sort the items using a sort condition.
    */
   sort(state: DirListing.ISortState): void {
-    this._sortedItems = Private.sort(this.model.items(), state);
+    this._sortedItems = Private.sort(
+      this.model.items(),
+      state,
+      this._sortNotebooksFirst
+    );
     this._sortState = state;
     this.update();
   }
@@ -353,7 +371,7 @@ export class DirListing extends Widget {
     const basePath = this._model.path;
     const promises: Promise<Contents.IModel>[] = [];
 
-    each(this._clipboard, path => {
+    for (const path of this._clipboard) {
       if (this._isCut) {
         const localPath = this._manager.services.contents.localPath(path);
         const parts = localPath.split('/');
@@ -363,12 +381,12 @@ export class DirListing extends Widget {
       } else {
         promises.push(this._model.manager.copy(path, basePath));
       }
-    });
+    }
 
     // Remove any cut modifiers.
-    each(this._items, item => {
+    for (const item of this._items) {
       item.classList.remove(CUT_CLASS);
-    });
+    }
 
     this._clipboard.length = 0;
     this._isCut = false;
@@ -423,6 +441,16 @@ export class DirListing extends Widget {
     if (!this.isDisposed && result.button.accept) {
       await this._delete(items.map(item => item.path));
     }
+
+    // Re-focus
+    let focusIndex = this._focusIndex;
+    const lastIndexAfterDelete = this._sortedItems.length - items.length - 1;
+    if (focusIndex > lastIndexAfterDelete) {
+      // If the focus index after deleting items is out of bounds, set it to the
+      // last item.
+      focusIndex = Math.max(0, lastIndexAfterDelete);
+    }
+    this._focusItem(focusIndex);
   }
 
   /**
@@ -434,11 +462,11 @@ export class DirListing extends Widget {
     const basePath = this._model.path;
     const promises: Promise<Contents.IModel>[] = [];
 
-    each(this.selectedItems(), item => {
+    for (const item of this.selectedItems()) {
       if (item.type !== 'directory') {
         promises.push(this._model.manager.copy(item.path, basePath));
       }
-    });
+    }
     return Promise.all(promises)
       .then(() => {
         return undefined;
@@ -456,7 +484,7 @@ export class DirListing extends Widget {
    */
   async download(): Promise<void> {
     await Promise.all(
-      toArray(this.selectedItems())
+      Array.from(this.selectedItems())
         .filter(item => item.type !== 'directory')
         .map(item => this._model.download(item.path))
     );
@@ -472,7 +500,7 @@ export class DirListing extends Widget {
     const items = this._sortedItems;
     const paths = items.map(item => item.path);
 
-    const promises = toArray(this._model.sessions())
+    const promises = Array.from(this._model.sessions())
       .filter(session => {
         const index = ArrayExt.firstIndexOf(paths, session.path);
         return this.selection[items[index].path];
@@ -581,7 +609,7 @@ export class DirListing extends Widget {
     const items = this._sortedItems;
 
     return (
-      toArray(
+      Array.from(
         filter(items, item => item.name === name && this.selection[item.path])
       ).length !== 0
     );
@@ -614,7 +642,7 @@ export class DirListing extends Widget {
    * Select an item by name.
    *
    * @param name - The name of the item to select.
-   * @param focus - Whether to move focus the selected item.
+   * @param focus - Whether to move focus to the selected item.
    *
    * @returns A promise that resolves when the name is selected.
    */
@@ -682,16 +710,16 @@ export class DirListing extends Widget {
         this._evtScroll(event as MouseEvent);
         break;
       case 'lm-dragenter':
-        this.evtDragEnter(event as IDragEvent);
+        this.evtDragEnter(event as Drag.Event);
         break;
       case 'lm-dragleave':
-        this.evtDragLeave(event as IDragEvent);
+        this.evtDragLeave(event as Drag.Event);
         break;
       case 'lm-dragover':
-        this.evtDragOver(event as IDragEvent);
+        this.evtDragOver(event as Drag.Event);
         break;
       case 'lm-drop':
-        this.evtDrop(event as IDragEvent);
+        this.evtDrop(event as Drag.Event);
         break;
       default:
         break;
@@ -785,14 +813,52 @@ export class DirListing extends Widget {
       content.appendChild(node);
     }
 
-    // Remove extra classes from the nodes.
-    nodes.forEach(item => {
-      item.classList.remove(SELECTED_CLASS);
-      item.classList.remove(RUNNING_CLASS);
-      item.classList.remove(CUT_CLASS);
+    nodes.forEach((node, i) => {
+      // Remove extra classes from the nodes.
+      node.classList.remove(SELECTED_CLASS);
+      node.classList.remove(RUNNING_CLASS);
+      node.classList.remove(CUT_CLASS);
+
+      // Uncheck each file checkbox
+      const checkbox = renderer.getCheckboxNode(node);
+      if (checkbox) {
+        checkbox.checked = false;
+      }
+
+      // Handle `tabIndex`
+      const nameNode = renderer.getNameNode(node);
+      if (nameNode) {
+        // Must check if the name node is there because it gets replaced by the
+        // edit node when editing the name of the file or directory.
+        nameNode.tabIndex = i === this._focusIndex ? 0 : -1;
+      }
     });
 
-    // Add extra classes to item nodes based on widget state.
+    // Put the check-all checkbox in the header into the correct state
+    const checkAllCheckbox = renderer.getCheckboxNode(this.headerNode);
+    if (checkAllCheckbox) {
+      const totalSelected = Object.keys(this.selection).length;
+      const allSelected = items.length > 0 && totalSelected === items.length;
+      const someSelected = !allSelected && totalSelected > 0;
+      checkAllCheckbox.checked = allSelected;
+      checkAllCheckbox.indeterminate = someSelected;
+      // Stash the state in data attributes so we can access them in the click
+      // handler (because in the click handler, checkbox.checked and
+      // checkbox.indeterminate do not hold the previous value; they hold the
+      // next value).
+      checkAllCheckbox.dataset.checked = String(allSelected);
+      checkAllCheckbox.dataset.indeterminate = String(someSelected);
+
+      const trans = this.translator.load('jupyterlab');
+      checkAllCheckbox?.setAttribute(
+        'aria-label',
+        allSelected || someSelected
+          ? trans.__('Deselect all files and directories')
+          : trans.__('Select all files and directories')
+      );
+    }
+
+    // Update item nodes based on widget state.
     items.forEach((item, i) => {
       const node = nodes[i];
       const ft = this._manager.registry.getFileTypeForModel(item);
@@ -801,14 +867,15 @@ export class DirListing extends Widget {
         item,
         ft,
         this.translator,
-        this._hiddenColumns
+        this._hiddenColumns,
+        this.selection[item.path]
       );
-      if (this.selection[item.path]) {
-        node.classList.add(SELECTED_CLASS);
-
-        if (this._isCut && this._model.path === this._prevPath) {
-          node.classList.add(CUT_CLASS);
-        }
+      if (
+        this.selection[item.path] &&
+        this._isCut &&
+        this._model.path === this._prevPath
+      ) {
+        node.classList.add(CUT_CLASS);
       }
 
       // add metadata to the node
@@ -829,7 +896,7 @@ export class DirListing extends Widget {
 
     // Handle file session statuses.
     const paths = items.map(item => item.path);
-    each(this._model.sessions(), session => {
+    for (const session of this._model.sessions()) {
       const index = ArrayExt.firstIndexOf(paths, session.path);
       const node = nodes[index];
       // Node may have been filtered out.
@@ -840,11 +907,11 @@ export class DirListing extends Widget {
         node.classList.add(RUNNING_CLASS);
         if (specs && name) {
           const spec = specs.kernelspecs[name];
-          name = spec ? spec.display_name : 'unknown'; // FIXME-TRANS: Is this localizable?
+          name = spec ? spec.display_name : this._trans.__('unknown');
         }
         node.title = this._trans.__('%1\nKernel: %2', node.title, name);
       }
-    });
+    }
 
     this._prevPath = this._model.path;
   }
@@ -873,6 +940,32 @@ export class DirListing extends Widget {
     );
   }
 
+  /**
+   * Update the setting to sort notebooks above files.
+   * This sorts the items again if the internal value is modified.
+   */
+  setNotebooksFirstSorting(isEnabled: boolean) {
+    let previousValue = this._sortNotebooksFirst;
+    this._sortNotebooksFirst = isEnabled;
+    if (this._sortNotebooksFirst !== previousValue) {
+      this.sort(this._sortState);
+    }
+  }
+
+  /**
+   * Would this click (or other event type) hit the checkbox by default?
+   */
+  protected isWithinCheckboxHitArea(event: Event): boolean {
+    let element: HTMLElement | null = event.target as HTMLElement;
+    while (element) {
+      if (element.classList.contains(CHECKBOX_WRAPPER_CLASS)) {
+        return true;
+      }
+      element = element.parentElement;
+    }
+    return false;
+  }
+
   /**
    * Handle the `'click'` event for the widget.
    */
@@ -880,12 +973,40 @@ export class DirListing extends Widget {
     const target = event.target as HTMLElement;
 
     const header = this.headerNode;
+    const renderer = this._renderer;
     if (header.contains(target)) {
-      const state = this.renderer.handleHeaderClick(header, event);
-      if (state) {
-        this.sort(state);
+      const checkbox = renderer.getCheckboxNode(header);
+      if (checkbox && this.isWithinCheckboxHitArea(event)) {
+        const previouslyUnchecked =
+          checkbox.dataset.indeterminate === 'false' &&
+          checkbox.dataset.checked === 'false';
+        // The only time a click on the check-all checkbox should check all is
+        // when it was previously unchecked; otherwise, if the checkbox was
+        // either checked (all selected) or indeterminate (some selected), the
+        // click should clear all.
+        if (previouslyUnchecked) {
+          // Select all items
+          this._sortedItems.forEach(
+            (item: Contents.IModel) => (this.selection[item.path] = true)
+          );
+        } else {
+          // Unselect all items
+          this.clearSelectedItems();
+        }
+        this.update();
+      } else {
+        const state = this.renderer.handleHeaderClick(header, event);
+        if (state) {
+          this.sort(state);
+        }
       }
       return;
+    } else {
+      // Focus the selected file on click to ensure a couple of things:
+      // 1. If a user clicks on the item node, its name node will receive focus.
+      // 2. If a user clicks on blank space in the directory listing, the
+      //    previously focussed item will be focussed.
+      this._focusItem(this._focusIndex);
     }
   }
 
@@ -961,11 +1082,11 @@ export class DirListing extends Widget {
       }
       this._softSelection = '';
     }
-    // Re-focus the selected file. This is needed because nodes corresponding
-    // to files selected in mousedown handler will not retain the focus
-    // as mousedown event is always followed by a blur/focus event.
+    // Re-focus. This is needed because nodes corresponding to files selected in
+    // mousedown handler will not retain the focus as mousedown event is always
+    // followed by a blur/focus event.
     if (event.button === 0) {
-      this._focusSelectedFile();
+      this._focusItem(this._focusIndex);
     }
 
     // Remove the drag listeners if necessary.
@@ -1022,10 +1143,116 @@ export class DirListing extends Widget {
     }
   }
 
+  /**
+   * Calculate the next focus index, given the current focus index and a
+   * direction, keeping within the bounds of the directory listing.
+   *
+   * @param index Current focus index
+   * @param direction -1 (up) or 1 (down)
+   * @returns The next focus index, which could be the same as the current focus
+   * index if at the boundary.
+   */
+  private _getNextFocusIndex(index: number, direction: number): number {
+    const nextIndex = index + direction;
+    if (nextIndex === -1 || nextIndex === this._items.length) {
+      // keep focus index within bounds
+      return index;
+    } else {
+      return nextIndex;
+    }
+  }
+
+  /**
+   * Handle the up or down arrow key.
+   *
+   * @param event The keyboard event
+   * @param direction -1 (up) or 1 (down)
+   */
+  private _handleArrowY(event: KeyboardEvent, direction: number) {
+    // We only handle the `ctrl` and `shift` modifiers. If other modifiers are
+    // present, then do nothing.
+    if (event.altKey || event.metaKey) {
+      return;
+    }
+
+    // If folder is empty, there's nothing to do with the up/down key.
+    if (!this._items.length) {
+      return;
+    }
+
+    // Don't handle the arrow key press if it's not on directory item. This
+    // avoids a confusing user experience that can result from when the user
+    // moves the selection and focus index apart (via ctrl + up/down). The last
+    // selected item remains highlighted but the last focussed item loses its
+    // focus ring if it's not actively focussed.  This forces the user to
+    // visibly reveal the last focussed item before moving the focus.
+    if (!(event.target as HTMLElement).classList.contains(ITEM_TEXT_CLASS)) {
+      return;
+    }
+
+    event.stopPropagation();
+    event.preventDefault();
+
+    const focusIndex = this._focusIndex;
+    let nextFocusIndex = this._getNextFocusIndex(focusIndex, direction);
+
+    // The following if-block allows the first press of the down arrow to select
+    // the first (rather than the second) file/directory in the list. This is
+    // the situation when the page first loads or when a user changes directory.
+    if (
+      direction > 0 &&
+      focusIndex === 0 &&
+      !event.ctrlKey &&
+      Object.keys(this.selection).length === 0
+    ) {
+      nextFocusIndex = 0;
+    }
+
+    // Shift key indicates multi-selection. Either the user is trying to grow
+    // the selection, or shrink it.
+    if (event.shiftKey) {
+      this._handleMultiSelect(nextFocusIndex);
+    } else if (!event.ctrlKey) {
+      // If neither the shift nor ctrl keys were used with the up/down arrow,
+      // then we treat it as a normal, unmodified key press and select the
+      // next item.
+      this._selectItem(
+        nextFocusIndex,
+        event.shiftKey,
+        false /* focus = false because we call focus method directly following this */
+      );
+    }
+
+    this._focusItem(nextFocusIndex);
+    this.update();
+  }
+
+  /**
+   * cd ..
+   *
+   * Go up one level in the directory tree.
+   */
+  async goUp() {
+    const model = this.model;
+    if (model.path === model.rootPath) {
+      return;
+    }
+    try {
+      await model.cd('..');
+    } catch (reason) {
+      console.warn(`Failed to go to parent directory of ${model.path}`, reason);
+    }
+  }
+
   /**
    * Handle the `'keydown'` event for the widget.
    */
   protected evtKeydown(event: KeyboardEvent): void {
+    // Do not handle any keydown events here if in the middle of a file rename.
+    if (this._inRename) {
+      return;
+    }
+
     switch (event.keyCode) {
       case 13: {
         // Enter
@@ -1035,37 +1262,78 @@ export class DirListing extends Widget {
         }
         event.preventDefault();
         event.stopPropagation();
+        for (const item of this.selectedItems()) {
+          this.handleOpen(item);
+        }
+        return;
+      }
+      case 38:
+        // Up arrow
+        this._handleArrowY(event, -1);
+        return;
+      case 40:
+        // Down arrow
+        this._handleArrowY(event, 1);
+        return;
+      case 32: {
+        // Space
+        if (event.ctrlKey) {
+          // Follow the Windows and Ubuntu convention: you must press `ctrl` +
+          // `space` in order to toggle whether an item is selected.
+
+          // However, do not handle if any other modifiers were pressed.
+          if (event.metaKey || event.shiftKey || event.altKey) {
+            return;
+          }
+
+          // Make sure the ctrl+space key stroke was on a valid, focussed target.
+          const node = this._items[this._focusIndex];
+          if (
+            !(
+              // Event must have occurred within a node whose item can be toggled.
+              (
+                node.contains(event.target as HTMLElement) &&
+                // That node must also contain the currently focussed element.
+                node.contains(document.activeElement)
+              )
+            )
+          ) {
+            return;
+          }
+
+          event.stopPropagation();
+          // Prevent default, otherwise the container will scroll.
+          event.preventDefault();
 
-        const selected = Object.keys(this.selection);
-        const path = selected[0];
-        const items = this._sortedItems;
-        const i = ArrayExt.findFirstIndex(items, value => value.path === path);
-        if (i === -1) {
+          // Toggle item selected
+          const { path } = this._sortedItems[this._focusIndex];
+          if (this.selection[path]) {
+            delete this.selection[path];
+          } else {
+            this.selection[path] = true;
+          }
+
+          this.update();
+          // Key was handled, so return.
           return;
         }
-
-        const item = this._sortedItems[i];
-        this.handleOpen(item);
         break;
       }
-      case 38: // Up arrow
-        this.selectPrevious(event.shiftKey);
-        event.stopPropagation();
-        event.preventDefault();
-        break;
-      case 40: // Down arrow
-        this.selectNext(event.shiftKey);
-        event.stopPropagation();
-        event.preventDefault();
-        break;
-      default:
-        break;
     }
 
     // Detects printable characters typed by the user.
     // Not all browsers support .key, but it discharges us from reconstructing
     // characters from key codes.
-    if (!this._inRename && event.key !== undefined && event.key.length === 1) {
+    if (
+      event.key !== undefined &&
+      event.key.length === 1 &&
+      // Don't gobble up the space key on the check-all checkbox (which the
+      // browser treats as a click event).
+      !(
+        (event.key === ' ' || event.keyCode === 32) &&
+        (event.target as HTMLInputElement).type === 'checkbox'
+      )
+    ) {
       if (event.ctrlKey || event.shiftKey || event.altKey || event.metaKey) {
         return;
       }
@@ -1096,6 +1364,13 @@ export class DirListing extends Widget {
       return;
     }
 
+    // Do nothing if the double click is on a checkbox. (Otherwise a rapid
+    // check-uncheck on the checkbox will cause the adjacent file/folder to
+    // open, which is probably not what the user intended.)
+    if (this.isWithinCheckboxHitArea(event)) {
+      return;
+    }
+
     // Stop the event propagation.
     event.preventDefault();
     event.stopPropagation();
@@ -1130,7 +1405,7 @@ export class DirListing extends Widget {
     }
     for (let i = 0; i < length; i++) {
       let entry = event.dataTransfer?.items[i].webkitGetAsEntry();
-      if (entry.isDirectory) {
+      if (entry?.isDirectory) {
         console.log('currently not supporting drag + drop for folders');
         void showDialog({
           title: this._trans.__('Error Uploading Folder'),
@@ -1150,7 +1425,7 @@ export class DirListing extends Widget {
   /**
    * Handle the `'lm-dragenter'` event for the widget.
    */
-  protected evtDragEnter(event: IDragEvent): void {
+  protected evtDragEnter(event: Drag.Event): void {
     if (event.mimeData.hasData(CONTENTS_MIME)) {
       const index = Private.hitTestNodes(this._items, event);
       if (index === -1) {
@@ -1170,7 +1445,7 @@ export class DirListing extends Widget {
   /**
    * Handle the `'lm-dragleave'` event for the widget.
    */
-  protected evtDragLeave(event: IDragEvent): void {
+  protected evtDragLeave(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     const dropTarget = DOMUtils.findElement(this.node, DROP_TARGET_CLASS);
@@ -1182,7 +1457,7 @@ export class DirListing extends Widget {
   /**
    * Handle the `'lm-dragover'` event for the widget.
    */
-  protected evtDragOver(event: IDragEvent): void {
+  protected evtDragOver(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     event.dropAction = event.proposedAction;
@@ -1197,7 +1472,7 @@ export class DirListing extends Widget {
   /**
    * Handle the `'lm-drop'` event for the widget.
    */
-  protected evtDrop(event: IDragEvent): void {
+  protected evtDrop(event: Drag.Event): void {
     event.preventDefault();
     event.stopPropagation();
     clearTimeout(this._selectTimer);
@@ -1266,7 +1541,7 @@ export class DirListing extends Widget {
     let selectedPaths = Object.keys(this.selection);
     const source = this._items[index];
     const items = this._sortedItems;
-    let selectedItems: Contents.IModel[];
+    let selectedItems: Iterable<Contents.IModel>;
     let item: Contents.IModel | undefined;
 
     // If the source node is not selected, use just that node.
@@ -1276,8 +1551,8 @@ export class DirListing extends Widget {
       selectedItems = [item];
     } else {
       const path = selectedPaths[0];
-      item = find(items, value => value.path === path);
-      selectedItems = toArray(this.selectedItems());
+      item = items.find(value => value.path === path);
+      selectedItems = this.selectedItems();
     }
 
     if (!item) {
@@ -1382,18 +1657,28 @@ export class DirListing extends Widget {
     const path = items[index].path;
     const selected = Object.keys(this.selection);
 
+    const isLeftClickOnCheckbox =
+      event.button === 0 &&
+      // On Mac, a left-click with the ctrlKey is treated as a right-click.
+      !(IS_MAC && event.ctrlKey) &&
+      this.isWithinCheckboxHitArea(event);
+
     // Handle toggling.
-    if ((IS_MAC && event.metaKey) || (!IS_MAC && event.ctrlKey)) {
+    if (
+      (IS_MAC && event.metaKey) ||
+      (!IS_MAC && event.ctrlKey) ||
+      isLeftClickOnCheckbox
+    ) {
       if (this.selection[path]) {
         delete this.selection[path];
       } else {
         this.selection[path] = true;
       }
-
+      this._focusItem(index);
       // Handle multiple select.
     } else if (event.shiftKey) {
-      this._handleMultiSelect(selected, index);
-
+      this._handleMultiSelect(index);
+      this._focusItem(index);
       // Handle a 'soft' selection
     } else if (path in this.selection && selected.length > 1) {
       this._softSelection = path;
@@ -1401,75 +1686,125 @@ export class DirListing extends Widget {
       // Default to selecting the only the item.
     } else {
       // Select only the given item.
-      return this._selectItem(index, false);
+      return this._selectItem(index, false, true);
     }
     this.update();
   }
 
   /**
-   * (Re-)focus on the selected file.
+   * (Re-)focus an item in the directory listing.
    *
-   * If index is not given, it will be inferred from the current selection;
-   * providing index saves on the iteration time.
-   */
-  private _focusSelectedFile(index?: number): void {
-    if (typeof index === 'undefined') {
-      const selected = Object.keys(this.selection);
-      if (selected.length > 1) {
-        // Multiselect - do not focus on any single file
-        return;
-      }
-      index = ArrayExt.findFirstIndex(
-        this._sortedItems,
-        value => value.path === selected[0]
-      );
-    }
-    if (index === -1) {
+   * @param index The index of the item node to focus
+   */
+  private _focusItem(index: number): void {
+    const items = this._items;
+    if (items.length === 0) {
+      // Focus the top node if the folder is empty and therefore there are no
+      // items inside the folder to focus.
+      this._focusIndex = 0;
+      this.node.focus();
       return;
     }
-    // Focus on text to make shortcuts works
-    const node = this._items[index];
-    const text = DOMUtils.findElement(node, ITEM_TEXT_CLASS);
-    if (text) {
-      text.focus();
+    this._focusIndex = index;
+    const node = items[index];
+    const nameNode = this.renderer.getNameNode(node);
+    if (nameNode) {
+      // Make the filename text node focusable so that it receives keyboard
+      // events; text node was specifically chosen to receive shortcuts because
+      // it gets substituted with input element during file name edits which
+      // conveniently deactivates irrelevant shortcuts.
+      nameNode.tabIndex = 0;
+      nameNode.focus();
     }
   }
 
+  /**
+   * Are all of the items between two provided indices selected?
+   *
+   * The items at the indices are not considered.
+   *
+   * @param j Index of one item.
+   * @param k Index of another item. Note: may be less or greater than first
+   *          index.
+   * @returns True if and only if all items between the j and k are selected.
+   *          Returns undefined if j and k are the same.
+   */
+  private _allSelectedBetween(j: number, k: number): boolean | void {
+    if (j === k) {
+      return;
+    }
+    const [start, end] = j < k ? [j + 1, k] : [k + 1, j];
+    return this._sortedItems
+      .slice(start, end)
+      .reduce((result, item) => result && this.selection[item.path], true);
+  }
+
   /**
    * Handle a multiple select on a file item node.
    */
-  private _handleMultiSelect(selected: string[], index: number): void {
-    // Find the "nearest selected".
+  private _handleMultiSelect(index: number): void {
     const items = this._sortedItems;
-    let nearestIndex = -1;
-    for (let i = 0; i < this._items.length; i++) {
-      if (i === index) {
-        continue;
-      }
-      const path = items[i].path;
-      if (selected.indexOf(path) !== -1) {
-        if (nearestIndex === -1) {
-          nearestIndex = i;
-        } else {
-          if (Math.abs(index - i) < Math.abs(nearestIndex - i)) {
-            nearestIndex = i;
-          }
-        }
-      }
+    const fromIndex = this._focusIndex;
+    const target = items[index];
+    let shouldAdd = true;
+
+    if (index === fromIndex) {
+      // This follows the convention in Ubuntu and Windows, which is to allow
+      // the focussed item to gain but not lose selected status on shift-click.
+      // (MacOS is irrelevant here because MacOS Finder has no notion of a
+      // focused-but-not-selected state.)
+      this.selection[target.path] = true;
+      return;
     }
 
-    // Default to the first element (and fill down).
-    if (nearestIndex === -1) {
-      nearestIndex = 0;
+    // If the target and all items in-between are selected, then we assume that
+    // the user is trying to shrink rather than grow the group of selected
+    // items.
+    if (this.selection[target.path]) {
+      // However, there is a special case when the distance between the from-
+      // and to- index is just one (for example, when the user is pressing the
+      // shift key plus arrow-up/down). If and only if the situation looks like
+      // the following when going down (or reverse when going up) ...
+      //
+      // - [ante-anchor / previous item] unselected (or boundary)
+      // - [anchor / currently focussed item / item at from-index] selected
+      // - [target / next item / item at to-index] selected
+      //
+      // ... then we shrink the selection / unselect the currently focussed
+      // item.
+      if (Math.abs(index - fromIndex) === 1) {
+        const anchor = items[fromIndex];
+        const anteAnchor = items[fromIndex + (index < fromIndex ? 1 : -1)];
+        if (
+          // Currently focussed item is selected
+          this.selection[anchor.path] &&
+          // Item on other side of focussed item (away from target) is either a
+          // boundary or unselected
+          (!anteAnchor || !this.selection[anteAnchor.path])
+        ) {
+          delete this.selection[anchor.path];
+        }
+      } else if (this._allSelectedBetween(fromIndex, index)) {
+        shouldAdd = false;
+      }
     }
 
-    // Select the rows between the current and the nearest selected.
-    for (let i = 0; i < this._items.length; i++) {
-      if (
-        (nearestIndex >= i && index <= i) ||
-        (nearestIndex <= i && index >= i)
-      ) {
+    // Select (or unselect) the rows between chosen index (target) and the last
+    // focussed.
+    const step = fromIndex < index ? 1 : -1;
+    for (let i = fromIndex; i !== index + step; i += step) {
+      if (shouldAdd) {
+        if (i === fromIndex) {
+          // Do not change the selection state of the starting (fromIndex) item.
+          continue;
+        }
         this.selection[items[i].path] = true;
+      } else {
+        if (i === index) {
+          // Do not unselect the target item.
+          continue;
+        }
+        delete this.selection[items[i].path];
       }
     }
   }
@@ -1479,9 +1814,9 @@ export class DirListing extends Widget {
    */
   private _copy(): void {
     this._clipboard.length = 0;
-    each(this.selectedItems(), item => {
+    for (const item of this.selectedItems()) {
       this._clipboard.push(item.path);
-    });
+    }
   }
 
   /**
@@ -1503,74 +1838,112 @@ export class DirListing extends Widget {
   /**
    * Allow the user to rename item on a given row.
    */
-  private _doRename(): Promise<string> {
+  private async _doRename(): Promise<string> {
     this._inRename = true;
+
+    const selectedPaths = Object.keys(this.selection);
+
+    // Bail out if nothing has been selected.
+    if (selectedPaths.length === 0) {
+      this._inRename = false;
+      return Promise.resolve('');
+    }
+
+    // Figure out which selected path to use for the rename.
     const items = this._sortedItems;
-    const path = Object.keys(this.selection)[0];
+    let { path } = items[this._focusIndex];
+    if (!this.selection[path]) {
+      // If the currently focused item is not selected, then choose the last
+      // selected item.
+      path = selectedPaths.slice(-1)[0];
+    }
+
+    // Get the corresponding model, nodes, and file name.
     const index = ArrayExt.findFirstIndex(items, value => value.path === path);
     const row = this._items[index];
     const item = items[index];
     const nameNode = this.renderer.getNameNode(row);
     const original = item.name;
+
+    // Seed the text input with current file name, and select and focus it.
     this._editNode.value = original;
-    this._selectItem(index, false);
-
-    return Private.doRename(nameNode, this._editNode, original).then(
-      newName => {
-        this.node.focus();
-        if (!newName || newName === original) {
-          this._inRename = false;
-          return original;
-        }
-        if (!isValidFileName(newName)) {
+    this._selectItem(index, false, true);
+
+    // Wait for user input
+    const newName = await Private.userInputForRename(
+      nameNode,
+      this._editNode,
+      original
+    );
+
+    // Check if the widget was disposed during the `await`.
+    if (this.isDisposed) {
+      this._inRename = false;
+      throw new Error('File browser is disposed.');
+    }
+
+    let finalFilename = newName;
+
+    if (!newName || newName === original) {
+      finalFilename = original;
+    } else if (!isValidFileName(newName)) {
+      void showErrorMessage(
+        this._trans.__('Rename Error'),
+        Error(
+          this._trans._p(
+            'showErrorMessage',
+            '"%1" is not a valid name for a file. Names must have nonzero length, and cannot include "/", "\\", or ":"',
+            newName
+          )
+        )
+      );
+      finalFilename = original;
+    } else {
+      // Attempt rename at the file system level.
+
+      const manager = this._manager;
+      const oldPath = PathExt.join(this._model.path, original);
+      const newPath = PathExt.join(this._model.path, newName);
+      try {
+        await renameFile(manager, oldPath, newPath);
+      } catch (error) {
+        if (error !== 'File not renamed') {
           void showErrorMessage(
-            this._trans.__('Rename Error'),
-            Error(
-              this._trans._p(
-                'showErrorMessage',
-                '"%1" is not a valid name for a file. Names must have nonzero length, and cannot include "/", "\\", or ":"',
-                newName
-              )
-            )
+            this._trans._p('showErrorMessage', 'Rename Error'),
+            error
           );
-          this._inRename = false;
-          return original;
         }
+        finalFilename = original;
+      }
 
-        if (this.isDisposed) {
-          this._inRename = false;
-          throw new Error('File browser is disposed.');
-        }
+      // Check if the widget was disposed during the `await`.
+      if (this.isDisposed) {
+        this._inRename = false;
+        throw new Error('File browser is disposed.');
+      }
+    }
 
-        const manager = this._manager;
-        const oldPath = PathExt.join(this._model.path, original);
-        const newPath = PathExt.join(this._model.path, newName);
-        const promise = renameFile(manager, oldPath, newPath);
-        return promise
-          .catch(error => {
-            if (error !== 'File not renamed') {
-              void showErrorMessage(
-                this._trans._p('showErrorMessage', 'Rename Error'),
-                error
-              );
-            }
-            this._inRename = false;
-            return original;
-          })
-          .then(() => {
-            if (this.isDisposed) {
-              this._inRename = false;
-              throw new Error('File browser is disposed.');
-            }
-            if (this._inRename) {
-              // No need to catch because `newName` will always exit.
-              void this.selectItemByName(newName);
-            }
-            this._inRename = false;
-            return newName;
-          });
+    // If nothing else has been selected, then select the renamed file. In
+    // other words, don't select the renamed file if the user has clicked
+    // away to some other file.
+    if (
+      !this.isDisposed &&
+      Object.keys(this.selection).length === 1 &&
+      // We haven't updated the instance yet to reflect the rename, so unless
+      // the user or something else has updated the selection, the original file
+      // path and not the new file path will be in `this.selection`.
+      this.selection[item.path]
+    ) {
+      try {
+        await this.selectItemByName(finalFilename, true);
+      } catch {
+        // do nothing
+        console.warn('After rename, failed to select file', finalFilename);
       }
-    );
+    }
+
+    this._inRename = false;
+    return finalFilename;
   }
 
   /**
@@ -1589,8 +1962,8 @@ export class DirListing extends Widget {
     const path = items[index].path;
     this.selection[path] = true;
 
-    if (!keepExisting && focus) {
-      this._focusSelectedFile(index);
+    if (focus) {
+      this._focusItem(index);
     }
     this.update();
   }
@@ -1602,12 +1975,12 @@ export class DirListing extends Widget {
     // Update the selection.
     const existing = Object.keys(this.selection);
     this.clearSelectedItems();
-    each(this._model.items(), item => {
+    for (const item of this._model.items()) {
       const path = item.path;
       if (existing.indexOf(path) !== -1) {
         this.selection[path] = true;
       }
-    });
+    }
     if (this.isVisible) {
       // Update the sorted items.
       this.sort(this.sortState);
@@ -1624,6 +1997,11 @@ export class DirListing extends Widget {
     this.clearSelectedItems();
     // Update the sorted items.
     this.sort(this.sortState);
+    // Reset focus. But wait until the DOM has been updated (hence
+    // `requestAnimationFrame`).
+    requestAnimationFrame(() => {
+      this._focusItem(0);
+    });
   }
 
   /**
@@ -1692,6 +2070,9 @@ export class DirListing extends Widget {
   private _inRename = false;
   private _isDirty = false;
   private _hiddenColumns = new Set<DirListing.ToggleableColumn>();
+  private _sortNotebooksFirst = false;
+  // _focusIndex should never be set outside the range [0, this._items.length - 1]
+  private _focusIndex = 0;
 }
 
 /**
@@ -1732,13 +2113,13 @@ export namespace DirListing {
     /**
      * The sort key.
      */
-    key: 'name' | 'last_modified';
+    key: 'name' | 'last_modified' | 'file_size';
   }
 
   /**
    * Toggleable columns.
    */
-  export type ToggleableColumn = 'last_modified';
+  export type ToggleableColumn = 'last_modified' | 'is_selected' | 'file_size';
 
   /**
    * A file contents model thunk.
@@ -1813,7 +2194,8 @@ export namespace DirListing {
       model: Contents.IModel,
       fileType?: DocumentRegistry.IFileType,
       translator?: ITranslator,
-      hiddenColumns?: Set<DirListing.ToggleableColumn>
+      hiddenColumns?: Set<DirListing.ToggleableColumn>,
+      selected?: boolean
     ): void;
 
     /**
@@ -1825,6 +2207,20 @@ export namespace DirListing {
      */
     getNameNode(node: HTMLElement): HTMLElement;
 
+    /**
+     * Get the checkbox input element node.
+     *
+     * Downstream interface implementations,such as jupyterlab-unfold, that
+     * don't support checkboxes should simply always return null for this
+     * function.
+     *
+     * @param node A node created by [[createItemNode]] or
+     * [[createHeaderItemNode]]
+     *
+     * @returns The checkbox node.
+     */
+    getCheckboxNode: (node: HTMLElement) => HTMLInputElement | null;
+
     /**
      * Create an appropriate drag image for an item.
      *
@@ -1859,7 +2255,8 @@ export namespace DirListing {
       header.className = HEADER_CLASS;
       node.appendChild(header);
       node.appendChild(content);
-      node.tabIndex = 0;
+      // Set to -1 to allow calling this.node.focus().
+      node.tabIndex = -1;
       return node;
     }
 
@@ -1878,21 +2275,36 @@ export namespace DirListing {
       const name = this.createHeaderItemNode(trans.__('Name'));
       const narrow = document.createElement('div');
       const modified = this.createHeaderItemNode(trans.__('Last Modified'));
+      const fileSize = this.createHeaderItemNode(trans.__('File Size'));
       name.classList.add(NAME_ID_CLASS);
       name.classList.add(SELECTED_CLASS);
       modified.classList.add(MODIFIED_ID_CLASS);
+      fileSize.classList.add(FILE_SIZE_ID_CLASS);
       narrow.classList.add(NARROW_ID_CLASS);
       narrow.textContent = '...';
+      if (!hiddenColumns?.has('is_selected')) {
+        const checkboxWrapper = this.createCheckboxWrapperNode({
+          alwaysVisible: true
+        });
+        node.appendChild(checkboxWrapper);
+      }
       node.appendChild(name);
       node.appendChild(narrow);
       node.appendChild(modified);
+      node.appendChild(fileSize);
 
-      if (hiddenColumns?.has?.('last_modified')) {
+      if (hiddenColumns?.has('last_modified')) {
         modified.classList.add(MODIFIED_COLUMN_HIDDEN);
       } else {
         modified.classList.remove(MODIFIED_COLUMN_HIDDEN);
       }
 
+      if (hiddenColumns?.has('file_size')) {
+        fileSize.classList.add(FILE_SIZE_COLUMN_HIDDEN);
+      } else {
+        fileSize.classList.remove(FILE_SIZE_COLUMN_HIDDEN);
+      }
+
       // set the initial caret icon
       Private.updateCaret(
         DOMUtils.findElement(name, HEADER_ITEM_ICON_CLASS),
@@ -1913,15 +2325,21 @@ export namespace DirListing {
     handleHeaderClick(node: HTMLElement, event: MouseEvent): ISortState | null {
       const name = DOMUtils.findElement(node, NAME_ID_CLASS);
       const modified = DOMUtils.findElement(node, MODIFIED_ID_CLASS);
+      const fileSize = DOMUtils.findElement(node, FILE_SIZE_ID_CLASS);
       const state: ISortState = { direction: 'ascending', key: 'name' };
       const target = event.target as HTMLElement;
-      if (name.contains(target)) {
-        const modifiedIcon = DOMUtils.findElement(
-          modified,
-          HEADER_ITEM_ICON_CLASS
-        );
-        const nameIcon = DOMUtils.findElement(name, HEADER_ITEM_ICON_CLASS);
 
+      const modifiedIcon = DOMUtils.findElement(
+        modified,
+        HEADER_ITEM_ICON_CLASS
+      );
+      const fileSizeIcon = DOMUtils.findElement(
+        fileSize,
+        HEADER_ITEM_ICON_CLASS
+      );
+      const nameIcon = DOMUtils.findElement(name, HEADER_ITEM_ICON_CLASS);
+
+      if (name.contains(target)) {
         if (name.classList.contains(SELECTED_CLASS)) {
           if (!name.classList.contains(DESCENDING_CLASS)) {
             state.direction = 'descending';
@@ -1938,16 +2356,13 @@ export namespace DirListing {
         name.classList.add(SELECTED_CLASS);
         modified.classList.remove(SELECTED_CLASS);
         modified.classList.remove(DESCENDING_CLASS);
+        fileSize.classList.remove(SELECTED_CLASS);
+        fileSize.classList.remove(DESCENDING_CLASS);
         Private.updateCaret(modifiedIcon, 'left');
+        Private.updateCaret(fileSizeIcon, 'left');
         return state;
       }
       if (modified.contains(target)) {
-        const modifiedIcon = DOMUtils.findElement(
-          modified,
-          HEADER_ITEM_ICON_CLASS
-        );
-        const nameIcon = DOMUtils.findElement(name, HEADER_ITEM_ICON_CLASS);
-
         state.key = 'last_modified';
         if (modified.classList.contains(SELECTED_CLASS)) {
           if (!modified.classList.contains(DESCENDING_CLASS)) {
@@ -1965,7 +2380,34 @@ export namespace DirListing {
         modified.classList.add(SELECTED_CLASS);
         name.classList.remove(SELECTED_CLASS);
         name.classList.remove(DESCENDING_CLASS);
+        fileSize.classList.remove(SELECTED_CLASS);
+        fileSize.classList.remove(DESCENDING_CLASS);
+        Private.updateCaret(nameIcon, 'right');
+        Private.updateCaret(fileSizeIcon, 'left');
+        return state;
+      }
+      if (fileSize.contains(target)) {
+        state.key = 'file_size';
+        if (fileSize.classList.contains(SELECTED_CLASS)) {
+          if (!fileSize.classList.contains(DESCENDING_CLASS)) {
+            state.direction = 'descending';
+            fileSize.classList.add(DESCENDING_CLASS);
+            Private.updateCaret(fileSizeIcon, 'left', 'down');
+          } else {
+            fileSize.classList.remove(DESCENDING_CLASS);
+            Private.updateCaret(fileSizeIcon, 'left', 'up');
+          }
+        } else {
+          fileSize.classList.remove(DESCENDING_CLASS);
+          Private.updateCaret(fileSizeIcon, 'left', 'up');
+        }
+        fileSize.classList.add(SELECTED_CLASS);
+        name.classList.remove(SELECTED_CLASS);
+        name.classList.remove(DESCENDING_CLASS);
+        modified.classList.remove(SELECTED_CLASS);
+        modified.classList.remove(DESCENDING_CLASS);
         Private.updateCaret(nameIcon, 'right');
+        Private.updateCaret(modifiedIcon, 'left');
         return state;
       }
       return state;
@@ -1983,27 +2425,78 @@ export namespace DirListing {
       const icon = document.createElement('span');
       const text = document.createElement('span');
       const modified = document.createElement('span');
+      const fileSize = document.createElement('span');
       icon.className = ITEM_ICON_CLASS;
       text.className = ITEM_TEXT_CLASS;
       modified.className = ITEM_MODIFIED_CLASS;
+      fileSize.className = ITEM_FILE_SIZE_CLASS;
+      if (!hiddenColumns?.has('is_selected')) {
+        const checkboxWrapper = this.createCheckboxWrapperNode();
+        node.appendChild(checkboxWrapper);
+      }
       node.appendChild(icon);
       node.appendChild(text);
       node.appendChild(modified);
+      node.appendChild(fileSize);
 
-      // Make the text note focusable so that it receives keyboard events;
-      // text node was specifically chosen to receive shortcuts because
-      // text element gets substituted with input area during file name edits
-      // which conveniently deactivate irrelevant shortcuts.
-      text.tabIndex = 0;
-
-      if (hiddenColumns?.has?.('last_modified')) {
+      if (hiddenColumns?.has('last_modified')) {
         modified.classList.add(MODIFIED_COLUMN_HIDDEN);
       } else {
         modified.classList.remove(MODIFIED_COLUMN_HIDDEN);
       }
+
+      if (hiddenColumns?.has('file_size')) {
+        fileSize.classList.add(FILE_SIZE_COLUMN_HIDDEN);
+      } else {
+        fileSize.classList.remove(FILE_SIZE_COLUMN_HIDDEN);
+      }
+
       return node;
     }
 
+    /**
+     * Creates a node containing a checkbox.
+     *
+     * We wrap the checkbox in a label element in order to increase its hit
+     * area. This is because the padding of the checkbox itself cannot be
+     * increased via CSS, as the CSS/form compatibility table at the following
+     * url from MDN shows:
+     * https://developer.mozilla.org/en-US/docs/Learn/Forms/Property_compatibility_table_for_form_controls#check_boxes_and_radio_buttons
+     *
+     * @param [options]
+     * @params options.alwaysVisible Should the checkbox be visible even when
+     * not hovered?
+     * @returns A new DOM node that contains a checkbox.
+     */
+    createCheckboxWrapperNode(options?: {
+      alwaysVisible: boolean;
+    }): HTMLElement {
+      // Wrap the checkbox in a label element in order to increase its hit area.
+      const labelWrapper = document.createElement('label');
+      labelWrapper.classList.add(CHECKBOX_WRAPPER_CLASS);
+
+      const checkbox = document.createElement('input');
+      checkbox.type = 'checkbox';
+      // Prevent the user from clicking (via mouse, keyboard, or touch) the
+      // checkbox since other code handles the mouse and keyboard events and
+      // controls the checked state of the checkbox.
+      checkbox.addEventListener('click', event => {
+        event.preventDefault();
+      });
+
+      // The individual file checkboxes are visible on hover, but the header
+      // check-all checkbox is always visible.
+      if (options?.alwaysVisible) {
+        labelWrapper.classList.add('jp-mod-visible');
+      } else {
+        // Disable tabbing to all other checkboxes.
+        checkbox.tabIndex = -1;
+      }
+
+      labelWrapper.appendChild(checkbox);
+      return labelWrapper;
+    }
+
     /**
      * Update an item node to reflect the current state of a model.
      *
@@ -2019,9 +2512,12 @@ export namespace DirListing {
       model: Contents.IModel,
       fileType?: DocumentRegistry.IFileType,
       translator?: ITranslator,
-      hiddenColumns?: Set<DirListing.ToggleableColumn>
+      hiddenColumns?: Set<DirListing.ToggleableColumn>,
+      selected?: boolean
     ): void {
-      translator = translator || nullTranslator;
+      if (selected) {
+        node.classList.add(SELECTED_CLASS);
+      }
 
       fileType =
         fileType || DocumentRegistry.getDefaultTextFileType(translator);
@@ -2032,13 +2528,32 @@ export namespace DirListing {
       const iconContainer = DOMUtils.findElement(node, ITEM_ICON_CLASS);
       const text = DOMUtils.findElement(node, ITEM_TEXT_CLASS);
       const modified = DOMUtils.findElement(node, ITEM_MODIFIED_CLASS);
+      const fileSize = DOMUtils.findElement(node, ITEM_FILE_SIZE_CLASS);
+      const checkboxWrapper = DOMUtils.findElement(
+        node,
+        CHECKBOX_WRAPPER_CLASS
+      );
+
+      const showFileCheckboxes = !hiddenColumns?.has('is_selected');
+      if (checkboxWrapper && !showFileCheckboxes) {
+        node.removeChild(checkboxWrapper);
+      } else if (showFileCheckboxes && !checkboxWrapper) {
+        const checkboxWrapper = this.createCheckboxWrapperNode();
+        node.insertBefore(checkboxWrapper, iconContainer);
+      }
 
-      if (hiddenColumns?.has?.('last_modified')) {
+      if (hiddenColumns?.has('last_modified')) {
         modified.classList.add(MODIFIED_COLUMN_HIDDEN);
       } else {
         modified.classList.remove(MODIFIED_COLUMN_HIDDEN);
       }
 
+      if (hiddenColumns?.has('file_size')) {
+        fileSize.classList.add(FILE_SIZE_COLUMN_HIDDEN);
+      } else {
+        fileSize.classList.remove(FILE_SIZE_COLUMN_HIDDEN);
+      }
+
       // render the file item's icon
       LabIcon.resolveElement({
         icon,
@@ -2052,10 +2567,14 @@ export namespace DirListing {
 
       // add file size to pop up if its available
       if (model.size !== null && model.size !== undefined) {
+        const fileSizeText = Private.formatFileSize(model.size, 1, 1024);
+        fileSize.textContent = fileSizeText;
         hoverText += trans.__(
           '\nSize: %1',
           Private.formatFileSize(model.size, 1, 1024)
         );
+      } else {
+        fileSize.textContent = '';
       }
       if (model.path) {
         const dirname = PathExt.dirname(model.path);
@@ -2069,13 +2588,13 @@ export namespace DirListing {
       if (model.created) {
         hoverText += trans.__(
           '\nCreated: %1',
-          Time.format(new Date(model.created), 'YYYY-MM-DD HH:mm:ss')
+          Time.format(new Date(model.created))
         );
       }
       if (model.last_modified) {
         hoverText += trans.__(
           '\nModified: %1',
-          Time.format(new Date(model.last_modified), 'YYYY-MM-DD HH:mm:ss')
+          Time.format(new Date(model.last_modified))
         );
       }
       hoverText += trans.__('\nWritable: %1', model.writable);
@@ -2088,17 +2607,37 @@ export namespace DirListing {
         node.removeAttribute('data-is-dot');
       }
       // If an item is being edited currently, its text node is unavailable.
+      const indices = !model.indices ? [] : model.indices;
+      let highlightedName = StringExt.highlight(model.name, indices, h.mark);
       if (text) {
-        const indices = !model.indices ? [] : model.indices;
-        let highlightedName = StringExt.highlight(model.name, indices, h.mark);
         VirtualDOM.render(h.span(highlightedName), text);
       }
 
+      // Adds an aria-label to the checkbox element.
+      const checkbox = checkboxWrapper?.querySelector(
+        'input[type="checkbox"]'
+      ) as HTMLInputElement;
+
+      if (checkbox) {
+        let ariaLabel: string;
+        if (fileType.contentType === 'directory') {
+          ariaLabel = selected
+            ? trans.__('Deselect directory "%1"', highlightedName)
+            : trans.__('Select directory "%1"', highlightedName);
+        } else {
+          ariaLabel = selected
+            ? trans.__('Deselect file "%1"', highlightedName)
+            : trans.__('Select file "%1"', highlightedName);
+        }
+        checkbox.setAttribute('aria-label', ariaLabel);
+        checkbox.checked = selected ?? false;
+      }
+
       let modText = '';
       let modTitle = '';
       if (model.last_modified) {
         modText = Time.formatHuman(new Date(model.last_modified));
-        modTitle = Time.format(new Date(model.last_modified), 'lll');
+        modTitle = Time.format(new Date(model.last_modified));
       }
       modified.textContent = modText;
       modified.title = modTitle;
@@ -2115,6 +2654,20 @@ export namespace DirListing {
       return DOMUtils.findElement(node, ITEM_TEXT_CLASS);
     }
 
+    /**
+     * Get the checkbox input element node.
+     *
+     * @param node A node created by [[createItemNode]] or
+     * [[createHeaderItemNode]]
+     *
+     * @returns The checkbox node.
+     */
+    getCheckboxNode(node: HTMLElement): HTMLInputElement | null {
+      return node.querySelector(
+        `.${CHECKBOX_WRAPPER_CLASS} input[type=checkbox]`
+      );
+    }
+
     /**
      * Create a drag image for an item.
      *
@@ -2185,7 +2738,7 @@ namespace Private {
    *
    * @returns Boolean indicating whether the name changed.
    */
-  export function doRename(
+  export function userInputForRename(
     text: HTMLElement,
     edit: HTMLInputElement,
     original: string
@@ -2200,7 +2753,7 @@ namespace Private {
       edit.setSelectionRange(0, index);
     }
 
-    return new Promise<string>((resolve, reject) => {
+    return new Promise<string>(resolve => {
       edit.onblur = () => {
         parent.replaceChild(text, edit);
         resolve(edit.value);
@@ -2217,20 +2770,10 @@ namespace Private {
             event.preventDefault();
             edit.value = original;
             edit.blur();
-            break;
-          case 38: // Up arrow
-            event.stopPropagation();
-            event.preventDefault();
-            if (edit.selectionStart !== edit.selectionEnd) {
-              edit.selectionStart = edit.selectionEnd = 0;
-            }
-            break;
-          case 40: // Down arrow
-            event.stopPropagation();
-            event.preventDefault();
-            if (edit.selectionStart !== edit.selectionEnd) {
-              edit.selectionStart = edit.selectionEnd = edit.value.length;
-            }
+            // Put focus back on the text node. That way the user can, for
+            // example, press the keyboard shortcut to go back into edit mode,
+            // and it will work.
+            text.focus();
             break;
           default:
             break;
@@ -2243,31 +2786,81 @@ namespace Private {
    * Sort a list of items by sort state as a new array.
    */
   export function sort(
-    items: IIterator<Contents.IModel>,
-    state: DirListing.ISortState
+    items: Iterable<Contents.IModel>,
+    state: DirListing.ISortState,
+    sortNotebooksFirst: boolean = false
   ): Contents.IModel[] {
-    const copy = toArray(items);
+    const copy = Array.from(items);
     const reverse = state.direction === 'descending' ? 1 : -1;
 
-    if (state.key === 'last_modified') {
-      // Sort by last modified (grouping directories first)
-      copy.sort((a, b) => {
-        const t1 = a.type === 'directory' ? 0 : 1;
-        const t2 = b.type === 'directory' ? 0 : 1;
+    /**
+     * Compares two items and returns whether they should have a fixed priority.
+     * The fixed priority enables to always sort the directories above the other files. And to sort the notebook above other files if the `sortNotebooksFirst` is true.
+     */
+    function isPriorityOverridden(a: Contents.IModel, b: Contents.IModel) {
+      if (sortNotebooksFirst) {
+        return a.type !== b.type;
+      }
+      return (a.type === 'directory') !== (b.type === 'directory');
+    }
 
-        const valA = new Date(a.last_modified).getTime();
-        const valB = new Date(b.last_modified).getTime();
+    /**
+     * Returns the priority of a file.
+     */
+    function getPriority(item: Contents.IModel): number {
+      if (item.type === 'directory') {
+        return 2;
+      }
+      if (item.type === 'notebook' && sortNotebooksFirst) {
+        return 1;
+      }
+      return 0;
+    }
 
-        return t1 - t2 || (valA - valB) * reverse;
-      });
-    } else {
-      // Sort by name (grouping directories first)
-      copy.sort((a, b) => {
-        const t1 = a.type === 'directory' ? 0 : 1;
-        const t2 = b.type === 'directory' ? 0 : 1;
+    function compare(
+      compare: (a: Contents.IModel, b: Contents.IModel) => number
+    ) {
+      return (a: Contents.IModel, b: Contents.IModel) => {
+        // Group directory first, then notebooks, then files
+        if (isPriorityOverridden(a, b)) {
+          return getPriority(b) - getPriority(a);
+        }
 
-        return t1 - t2 || b.name.localeCompare(a.name) * reverse;
-      });
+        const compared = compare(a, b);
+
+        if (compared !== 0) {
+          return compared * reverse;
+        }
+
+        // Default sorting is alphabetical ascending
+        return a.name.localeCompare(b.name);
+      };
+    }
+
+    if (state.key === 'last_modified') {
+      // Sort by last modified
+      copy.sort(
+        compare((a: Contents.IModel, b: Contents.IModel) => {
+          return (
+            new Date(a.last_modified).getTime() -
+            new Date(b.last_modified).getTime()
+          );
+        })
+      );
+    } else if (state.key === 'file_size') {
+      // Sort by size
+      copy.sort(
+        compare((a: Contents.IModel, b: Contents.IModel) => {
+          return (a.size ?? 0) - (b.size ?? 0);
+        })
+      );
+    } else {
+      // Sort by name
+      copy.sort(
+        compare((a: Contents.IModel, b: Contents.IModel) => {
+          return b.name.localeCompare(a.name);
+        })
+      );
     }
     return copy;
   }
@@ -2297,10 +2890,10 @@ namespace Private {
   ): string {
     // https://www.codexworld.com/how-to/convert-file-size-bytes-kb-mb-gb-javascript/
     if (bytes === 0) {
-      return '0 Bytes';
+      return '0 B';
     }
     const dm = decimalPoint || 2;
-    const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
+    const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
     const i = Math.floor(Math.log(bytes) / Math.log(k));
     if (i >= 0 && i < sizes.length) {
       return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];
diff --git a/packages/filebrowser/src/model.ts b/packages/filebrowser/src/model.ts
index dbfae430dd42..d3a6a5e04e76 100644
--- a/packages/filebrowser/src/model.ts
+++ b/packages/filebrowser/src/model.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Dialog, IScore, showDialog } from '@jupyterlab/apputils';
+import { Dialog, showDialog } from '@jupyterlab/apputils';
 import { IChangedArgs, PageConfig, PathExt } from '@jupyterlab/coreutils';
 import { IDocumentManager, shouldOverwrite } from '@jupyterlab/docmanager';
 import { Contents, KernelSpec, Session } from '@jupyterlab/services';
@@ -11,15 +11,8 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  filter,
-  find,
-  IIterator,
-  IterableOrArrayLike
-} from '@lumino/algorithm';
+import { IScore } from '@jupyterlab/ui-components';
+import { ArrayExt, filter } from '@lumino/algorithm';
 import { PromiseDelegate, ReadonlyJSONObject } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { Poll } from '@lumino/polling';
@@ -103,7 +96,7 @@ export class FileBrowserModel implements IDisposable {
         backoff: true,
         max: 300 * 1000
       },
-      standby: 'when-hidden'
+      standby: options.refreshStandby || 'when-hidden'
     });
   }
 
@@ -192,8 +185,8 @@ export class FileBrowserModel implements IDisposable {
   /**
    * Create an iterator over the status of all in progress uploads.
    */
-  uploads(): IIterator<IUploadModel> {
-    return new ArrayIterator(this._uploads);
+  uploads(): IterableIterator<IUploadModel> {
+    return this._uploads[Symbol.iterator]();
   }
 
   /**
@@ -216,8 +209,8 @@ export class FileBrowserModel implements IDisposable {
    *
    * @returns A new iterator over the model's items.
    */
-  items(): IIterator<Contents.IModel> {
-    return new ArrayIterator(this._items);
+  items(): IterableIterator<Contents.IModel> {
+    return this._items[Symbol.iterator]();
   }
 
   /**
@@ -225,8 +218,8 @@ export class FileBrowserModel implements IDisposable {
    *
    * @returns A new iterator over the model's active sessions.
    */
-  sessions(): IIterator<Session.IModel> {
-    return new ArrayIterator(this._sessions);
+  sessions(): IterableIterator<Session.IModel> {
+    return this._sessions[Symbol.iterator]();
   }
 
   /**
@@ -435,7 +428,7 @@ export class FileBrowserModel implements IDisposable {
     await this.refresh();
     await this._uploadCheckDisposed();
     if (
-      find(this._items, i => i.name === file.name) &&
+      this._items.find(i => i.name === file.name) &&
       !(await shouldOverwrite(file.name))
     ) {
       throw err;
@@ -588,6 +581,7 @@ export class FileBrowserModel implements IDisposable {
       writable: contents.writable,
       created: contents.created,
       last_modified: contents.last_modified,
+      size: contents.size,
       mimetype: contents.mimetype,
       format: contents.format
     };
@@ -603,7 +597,7 @@ export class FileBrowserModel implements IDisposable {
    */
   protected onRunningChanged(
     sender: Session.IManager,
-    models: IterableOrArrayLike<Session.IModel>
+    models: Iterable<Session.IModel>
   ): void {
     this._populateSessions(models);
     this._refreshed.emit(void 0);
@@ -638,13 +632,13 @@ export class FileBrowserModel implements IDisposable {
   /**
    * Populate the model's sessions collection.
    */
-  private _populateSessions(models: IterableOrArrayLike<Session.IModel>): void {
+  private _populateSessions(models: Iterable<Session.IModel>): void {
     this._sessions.length = 0;
-    each(models, model => {
+    for (const model of models) {
       if (this._paths.has(model.path)) {
         this._sessions.push(model);
       }
-    });
+    }
   }
 
   protected translator: ITranslator;
@@ -703,6 +697,11 @@ export namespace FileBrowserModel {
      */
     refreshInterval?: number;
 
+    /**
+     * When the model stops polling the API. Defaults to `when-hidden`.
+     */
+    refreshStandby?: Poll.Standby | (() => boolean | Poll.Standby);
+
     /**
      * An optional state database. If provided, the model will restore which
      * folder was last opened when it is restored.
@@ -730,7 +729,7 @@ export class TogglableHiddenFileBrowserModel extends FileBrowserModel {
    *
    * @returns A new iterator over the model's items.
    */
-  items(): IIterator<Contents.IModel> {
+  items(): IterableIterator<Contents.IModel> {
     return this._includeHiddenFiles
       ? super.items()
       : filter(super.items(), value => !value.name.startsWith('.'));
@@ -768,7 +767,11 @@ export namespace TogglableHiddenFileBrowserModel {
 export class FilterFileBrowserModel extends TogglableHiddenFileBrowserModel {
   constructor(options: FilterFileBrowserModel.IOptions) {
     super(options);
-    this._filter = options.filter ? options.filter : model => Object.freeze({});
+    this._filter =
+      options.filter ??
+      (model => {
+        return {};
+      });
     this._filterDirectories = options.filterDirectories ?? true;
   }
 
@@ -787,28 +790,24 @@ export class FilterFileBrowserModel extends TogglableHiddenFileBrowserModel {
    *
    * @returns A new iterator over the model's items.
    */
-  items(): IIterator<Contents.IModel> {
-    return filter(super.items(), (value, index) => {
+  items(): IterableIterator<Contents.IModel> {
+    return filter(super.items(), value => {
       if (!this._filterDirectories && value.type === 'directory') {
         return true;
       } else {
         const filtered = this._filter(value);
-        if (typeof filtered !== 'boolean') {
-          value.indices = filtered?.indices;
-        }
+        value.indices = filtered?.indices;
         return !!filtered;
       }
     });
   }
 
-  setFilter(
-    filter: (value: Contents.IModel) => boolean | Partial<IScore> | null
-  ): void {
+  setFilter(filter: (value: Contents.IModel) => Partial<IScore> | null): void {
     this._filter = filter;
     void this.refresh();
   }
 
-  private _filter: (value: Contents.IModel) => boolean | Partial<IScore> | null;
+  private _filter: (value: Contents.IModel) => Partial<IScore> | null;
   private _filterDirectories: boolean;
 }
 
@@ -823,7 +822,7 @@ export namespace FilterFileBrowserModel {
     /**
      * Filter function on file browser item model
      */
-    filter?: (value: Contents.IModel) => boolean | Partial<IScore> | null;
+    filter?: (value: Contents.IModel) => Partial<IScore> | null;
 
     /**
      * Filter directories
diff --git a/packages/filebrowser/src/opendialog.ts b/packages/filebrowser/src/opendialog.ts
index 22e4d49409da..457d7d006718 100644
--- a/packages/filebrowser/src/opendialog.ts
+++ b/packages/filebrowser/src/opendialog.ts
@@ -1,18 +1,12 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  Dialog,
-  IScore,
-  setToolbar,
-  ToolbarButton
-} from '@jupyterlab/apputils';
+import { Dialog, setToolbar, ToolbarButton } from '@jupyterlab/apputils';
 import { PathExt } from '@jupyterlab/coreutils';
 import { IDocumentManager } from '@jupyterlab/docmanager';
 import { Contents } from '@jupyterlab/services';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { newFolderIcon, refreshIcon } from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
+import { IScore, newFolderIcon, refreshIcon } from '@jupyterlab/ui-components';
 import { PanelLayout, Widget } from '@lumino/widgets';
 import { FileBrowser } from './browser';
 import { FilterFileBrowserModel } from './model';
@@ -58,7 +52,7 @@ export namespace FileDialog {
     /**
      * Filter function on file browser item model
      */
-    filter?: (value: Contents.IModel) => boolean | Partial<IScore> | null;
+    filter?: (value: Contents.IModel) => Partial<IScore> | null;
 
     /**
      * The application language translator.
@@ -84,7 +78,7 @@ export namespace FileDialog {
     const dialogOptions: Partial<Dialog.IOptions<Contents.IModel[]>> = {
       title: options.title,
       buttons: [
-        Dialog.cancelButton({ label: trans.__('Cancel') }),
+        Dialog.cancelButton(),
         Dialog.okButton({
           label: trans.__('Select')
         })
@@ -113,7 +107,9 @@ export namespace FileDialog {
   ): Promise<Dialog.IResult<Contents.IModel[]>> {
     return getOpenFiles({
       ...options,
-      filter: model => model.type === 'directory'
+      filter: model => {
+        return model.type === 'directory' ? {} : null;
+      }
     });
   }
 }
@@ -123,10 +119,11 @@ export namespace FileDialog {
  */
 class OpenDialog
   extends Widget
-  implements Dialog.IBodyWidget<Contents.IModel[]> {
+  implements Dialog.IBodyWidget<Contents.IModel[]>
+{
   constructor(
     manager: IDocumentManager,
-    filter?: (value: Contents.IModel) => boolean | Partial<IScore> | null,
+    filter?: (value: Contents.IModel) => Partial<IScore> | null,
     translator?: ITranslator,
     filterDirectories?: boolean
   ) {
@@ -151,7 +148,7 @@ class OpenDialog
         widget: new ToolbarButton({
           icon: newFolderIcon,
           onClick: () => {
-            browser.createNewDirectory();
+            void browser.createNewDirectory();
           },
           tooltip: trans.__('New Folder')
         })
@@ -185,7 +182,7 @@ class OpenDialog
    * Get the selected items.
    */
   getValue(): Contents.IModel[] {
-    const selection = toArray(this._browser.selectedItems());
+    const selection = Array.from(this._browser.selectedItems());
     if (selection.length === 0) {
       // Return current path
       return [
@@ -235,7 +232,7 @@ namespace Private {
   export const createFilteredFileBrowser = (
     id: string,
     manager: IDocumentManager,
-    filter?: (value: Contents.IModel) => boolean | Partial<IScore> | null,
+    filter?: (value: Contents.IModel) => Partial<IScore> | null,
     options: IFileBrowserFactory.IOptions = {},
     translator?: ITranslator,
     filterDirectories?: boolean
diff --git a/packages/filebrowser/src/tokens.ts b/packages/filebrowser/src/tokens.ts
index efb4402bfe54..205c67a56de8 100644
--- a/packages/filebrowser/src/tokens.ts
+++ b/packages/filebrowser/src/tokens.ts
@@ -1,19 +1,33 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { IStateDB } from '@jupyterlab/statedb';
+import type { WidgetTracker } from '@jupyterlab/apputils';
+import type { IStateDB } from '@jupyterlab/statedb';
 import { Token } from '@lumino/coreutils';
-import { FileBrowser } from './browser';
+import type { FileBrowser } from './browser';
 
-/* tslint:disable */
 /**
- * The path tracker token.
+ * The file browser factory token.
  */
 export const IFileBrowserFactory = new Token<IFileBrowserFactory>(
-  '@jupyterlab/filebrowser:IFileBrowserFactory'
+  '@jupyterlab/filebrowser:IFileBrowserFactory',
+  `A factory object that creates file browsers.
+  Use this if you want to create your own file browser (e.g., for a custom storage backend),
+  or to interact with other file browsers that have been created by extensions.`
 );
-/* tslint:enable */
+
+/**
+ * The default file browser token.
+ */
+export const IDefaultFileBrowser = new Token<IDefaultFileBrowser>(
+  '@jupyterlab/filebrowser:IDefaultFileBrowser',
+  'A service for the default file browser.'
+);
+
+/**
+ * Default file browser type.
+ */
+export type IDefaultFileBrowser = FileBrowser;
 
 /**
  * The file browser factory interface.
@@ -46,11 +60,6 @@ export interface IFileBrowserFactory {
    * The widget tracker used by the factory to track file browsers.
    */
   readonly tracker: WidgetTracker<FileBrowser>;
-
-  /**
-   * The default file browser for the application.
-   */
-  defaultBrowser: FileBrowser;
 }
 
 /**
@@ -113,5 +122,6 @@ export namespace IFileBrowserFactory {
  * The token that indicates the default file browser commands are loaded.
  */
 export const IFileBrowserCommands = new Token<void>(
-  '@jupyterlab/filebrowser:IFileBrowserCommands'
+  '@jupyterlab/filebrowser:IFileBrowserCommands',
+  'A token to ensure file browser commands are loaded.'
 );
diff --git a/packages/filebrowser/src/upload.ts b/packages/filebrowser/src/upload.ts
index dcd3b924c5b3..1096b58d532c 100644
--- a/packages/filebrowser/src/upload.ts
+++ b/packages/filebrowser/src/upload.ts
@@ -1,13 +1,13 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { showErrorMessage, ToolbarButton } from '@jupyterlab/apputils';
+import { showErrorMessage } from '@jupyterlab/apputils';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { fileUploadIcon } from '@jupyterlab/ui-components';
+import { fileUploadIcon, ToolbarButton } from '@jupyterlab/ui-components';
 import { FileBrowserModel } from './model';
 
 /**
@@ -20,6 +20,7 @@ export class Uploader extends ToolbarButton {
   constructor(options: Uploader.IOptions) {
     super({
       icon: fileUploadIcon,
+      label: options.label,
       onClick: () => {
         this._input.click();
       },
@@ -85,6 +86,11 @@ export namespace Uploader {
      * The language translator.
      */
     translator?: ITranslator;
+
+    /**
+     * An optional label.
+     */
+    label?: string;
   }
 }
 
@@ -105,7 +111,7 @@ namespace Private {
   /**
    * Translate upload tooltip.
    */
-  export function translateToolTip(translator?: ITranslator) {
+  export function translateToolTip(translator?: ITranslator): string {
     translator = translator || nullTranslator;
     const trans = translator.load('jupyterlab');
     return trans.__('Upload Files');
diff --git a/packages/filebrowser/src/uploadstatus.tsx b/packages/filebrowser/src/uploadstatus.tsx
index e525fc09c75c..da6b83218f37 100644
--- a/packages/filebrowser/src/uploadstatus.tsx
+++ b/packages/filebrowser/src/uploadstatus.tsx
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 //
 
-import { VDomModel, VDomRenderer, WidgetTracker } from '@jupyterlab/apputils';
+import { WidgetTracker } from '@jupyterlab/apputils';
 import { IChangedArgs } from '@jupyterlab/coreutils';
 import { GroupItem, ProgressBar, TextItem } from '@jupyterlab/statusbar';
 import {
@@ -10,6 +10,7 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { ArrayExt } from '@lumino/algorithm';
 import React from 'react';
 import { FileBrowser, FileBrowserModel, IUploadModel } from '.';
@@ -86,7 +87,7 @@ export class FileUploadStatus extends VDomRenderer<FileUploadStatus.Model> {
   /**
    * Render the FileUpload status.
    */
-  render() {
+  render(): JSX.Element {
     const uploadPaths = this.model!.items;
     if (uploadPaths.length > 0) {
       const item = this.model!.items[0];
@@ -106,7 +107,7 @@ export class FileUploadStatus extends VDomRenderer<FileUploadStatus.Model> {
     }
   }
 
-  dispose() {
+  dispose(): void {
     super.dispose();
     this._tracker.currentChanged.disconnect(this._onBrowserChange);
   }
@@ -146,7 +147,7 @@ export namespace FileUploadStatus {
     /**
      * The currently uploading items.
      */
-    get items() {
+    get items(): IFileUploadItem[] {
       return this._items;
     }
 
diff --git a/packages/filebrowser/style/base.css b/packages/filebrowser/style/base.css
index dac0f8cd4f29..83a379e55cb1 100644
--- a/packages/filebrowser/style/base.css
+++ b/packages/filebrowser/style/base.css
@@ -17,33 +17,36 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-.jp-FileBrowser {
+.jp-FileBrowser .jp-SidePanel-content {
   display: flex;
   flex-direction: column;
-  color: var(--jp-ui-font-color1);
-  background: var(--jp-layout-color1);
-  /* This is needed so that all font sizing of children done in ems is
-   * relative to this base size */
-  font-size: var(--jp-ui-font-size1);
 }
 
 .jp-FileBrowser-toolbar.jp-Toolbar {
+  flex-wrap: wrap;
+  row-gap: 12px;
   border-bottom: none;
   height: auto;
-  margin: 8px 12px 0px 12px;
-  padding: 0px;
+  margin: 8px 12px 0;
   box-shadow: none;
+  padding: 0;
   justify-content: flex-start;
 }
 
+.jp-FileBrowser-Panel {
+  flex: 1 1 auto;
+  display: flex;
+  flex-direction: column;
+}
+
 .jp-BreadCrumbs {
   flex: 0 0 auto;
-  margin: 8px 12px 8px 12px;
+  margin: 8px 12px;
 }
 
 .jp-BreadCrumbs-item {
-  margin: 0px 2px;
-  padding: 0px 2px;
+  margin: 0 2px;
+  padding: 0 2px;
   border-radius: var(--jp-border-radius);
   cursor: pointer;
 }
@@ -53,7 +56,7 @@
 }
 
 .jp-BreadCrumbs-item:first-child {
-  margin-left: 0px;
+  margin-left: 0;
 }
 
 .jp-BreadCrumbs-item.jp-mod-dropTarget {
@@ -67,33 +70,16 @@
 
 .jp-FileBrowser-toolbar > .jp-Toolbar-item {
   flex: 0 0 auto;
-  padding-left: 0px;
+  padding-left: 0;
   padding-right: 2px;
+  align-items: center;
+  height: unset;
 }
 
 .jp-FileBrowser-toolbar > .jp-Toolbar-item .jp-ToolbarButtonComponent {
   width: 40px;
 }
 
-.jp-FileBrowser-toolbar
-  .jp-ToolbarButtonComponent[data-command='filebrowser:create-main-launcher'] {
-  width: 72px;
-  background: var(--jp-brand-color1);
-}
-
-.jp-FileBrowser-toolbar
-  .jp-ToolbarButtonComponent[data-command='filebrowser:create-main-launcher']:hover,
-.jp-FileBrowser-toolbar
-  .jp-ToolbarButtonComponent[data-command='filebrowser:create-main-launcher']:focus-visible {
-  background-color: var(--jp-brand-color0) !important;
-}
-
-.jp-FileBrowser-toolbar
-  .jp-ToolbarButtonComponent[data-command='filebrowser:create-main-launcher']
-  .jp-icon3 {
-  fill: var(--jp-layout-color1);
-}
-
 /*-----------------------------------------------------------------------------
 | Other styles
 |----------------------------------------------------------------------------*/
@@ -110,10 +96,12 @@
   display: none;
 }
 
-.jp-FileBrowser-filterBox {
-  padding: 0px;
-  flex: 0 0 auto;
-  margin: 8px 12px 0px 12px;
+.jp-FileSize-hidden {
+  display: none;
+}
+
+.jp-FileBrowser .lm-AccordionPanel > h3:first-child {
+  display: none;
 }
 
 /*-----------------------------------------------------------------------------
@@ -127,15 +115,11 @@
   outline: 0;
 }
 
-.jp-DirListing:focus-visible {
-  outline: 1px solid var(--jp-brand-color1);
-  outline-offset: -2px;
-}
-
 .jp-DirListing-header {
   flex: 0 0 auto;
   display: flex;
   flex-direction: row;
+  align-items: center;
   overflow: hidden;
   border-top: var(--jp-border-width) solid var(--jp-border-color2);
   border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
@@ -144,7 +128,7 @@
 }
 
 .jp-DirListing-headerItem {
-  padding: 4px 12px 2px 12px;
+  padding: 4px 12px 2px;
   font-weight: 500;
 }
 
@@ -162,10 +146,16 @@
   text-align: right;
 }
 
+.jp-DirListing-headerItem.jp-id-filesize {
+  flex: 0 0 75px;
+  border-left: var(--jp-border-width) solid var(--jp-border-color2);
+  text-align: right;
+}
+
 .jp-id-narrow {
   display: none;
   flex: 0 0 5px;
-  padding: 4px 4px;
+  padding: 4px;
   border-left: var(--jp-border-width) solid var(--jp-border-color2);
   text-align: right;
   color: var(--jp-border-color2);
@@ -214,6 +204,7 @@
 .jp-DirListing-item {
   display: flex;
   flex-direction: row;
+  align-items: center;
   padding: 4px 12px;
   -webkit-user-select: none;
   -moz-user-select: none;
@@ -221,6 +212,40 @@
   user-select: none;
 }
 
+.jp-DirListing-checkboxWrapper {
+  /* Increases hit area of checkbox. */
+  padding: 4px;
+}
+
+.jp-DirListing-header
+  .jp-DirListing-checkboxWrapper
+  + .jp-DirListing-headerItem {
+  padding-left: 4px;
+}
+
+.jp-DirListing-content .jp-DirListing-checkboxWrapper {
+  position: relative;
+  left: -4px;
+  margin: -4px 0 -4px -8px;
+}
+
+.jp-DirListing-checkboxWrapper.jp-mod-visible {
+  visibility: visible;
+}
+
+/* For devices that support hovering, hide checkboxes until hovered, selected...
+*/
+@media (hover: hover) {
+  .jp-DirListing-checkboxWrapper {
+    visibility: hidden;
+  }
+
+  .jp-DirListing-item:hover .jp-DirListing-checkboxWrapper,
+  .jp-DirListing-item.jp-mod-selected .jp-DirListing-checkboxWrapper {
+    visibility: visible;
+  }
+}
+
 .jp-DirListing-item[data-is-dot] {
   opacity: 75%;
 }
@@ -251,11 +276,27 @@
   user-select: none;
 }
 
+.jp-DirListing-itemText:focus {
+  outline-width: 2px;
+  outline-color: var(--jp-inverse-layout-color1);
+  outline-style: solid;
+  outline-offset: 1px;
+}
+
+.jp-DirListing-item.jp-mod-selected .jp-DirListing-itemText:focus {
+  outline-color: var(--jp-layout-color1);
+}
+
 .jp-DirListing-itemModified {
   flex: 0 0 125px;
   text-align: right;
 }
 
+.jp-DirListing-itemFileSize {
+  flex: 0 0 90px;
+  text-align: right;
+}
+
 .jp-DirListing-editor {
   flex: 1 0 64px;
   outline: none;
@@ -264,7 +305,7 @@
   background-color: var(--jp-layout-color1);
 }
 
-.jp-DirListing-item.jp-mod-running .jp-DirListing-itemIcon:before {
+.jp-DirListing-item.jp-mod-running .jp-DirListing-itemIcon::before {
   color: var(--jp-success-color1);
   content: '\25CF';
   font-size: 8px;
@@ -273,7 +314,7 @@
 }
 
 .jp-DirListing-item.jp-mod-running.jp-mod-selected
-  .jp-DirListing-itemIcon:before {
+  .jp-DirListing-itemIcon::before {
   color: var(--jp-ui-inverse-font-color1);
 }
 
@@ -285,7 +326,7 @@
   width: 160px;
   background-color: var(--jp-ui-inverse-font-color2);
   box-shadow: var(--jp-elevation-z2);
-  border-radius: 0px;
+  border-radius: 0;
   color: var(--jp-ui-font-color1);
   transform: translateX(-40%) translateY(-58%);
 }
diff --git a/packages/filebrowser/style/index.css b/packages/filebrowser/style/index.css
index e39296467136..794d3f87370a 100644
--- a/packages/filebrowser/style/index.css
+++ b/packages/filebrowser/style/index.css
@@ -10,5 +10,4 @@
 @import url('~@lumino/dragdrop/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/docmanager/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/filebrowser/test/browser.spec.ts b/packages/filebrowser/test/browser.spec.ts
new file mode 100644
index 000000000000..bc35bee081f9
--- /dev/null
+++ b/packages/filebrowser/test/browser.spec.ts
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import expect from 'expect';
+import { Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
+import { DocumentManager, IDocumentManager } from '@jupyterlab/docmanager';
+import { DocumentRegistry, TextModelFactory } from '@jupyterlab/docregistry';
+import { ServiceManager } from '@jupyterlab/services';
+import { signalToPromise } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
+import { simulate } from 'simulate-event';
+import { FileBrowser, FilterFileBrowserModel } from '../src';
+
+const ITEM_CLASS = 'jp-DirListing-item';
+const EDITOR_CLASS = 'jp-DirListing-editor';
+
+class TestFileBrowser extends FileBrowser {
+  renameCalled = new Signal<this, void>(this);
+  rename(...args: any[]) {
+    const result = super.rename.apply(this, args);
+    // Allows us to spy on onUpdateRequest.
+    this.renameCalled.emit();
+    return result;
+  }
+}
+
+describe('filebrowser/browser', () => {
+  let manager: IDocumentManager;
+  let serviceManager: ServiceManager.IManager;
+  let registry: DocumentRegistry;
+  let model: FilterFileBrowserModel;
+
+  beforeAll(async () => {
+    const opener = new DocumentWidgetOpenerMock();
+
+    registry = new DocumentRegistry({
+      textModelFactory: new TextModelFactory()
+    });
+    serviceManager = new ServiceManagerMock();
+    manager = new DocumentManager({
+      registry,
+      opener,
+      manager: serviceManager
+    });
+
+    model = new FilterFileBrowserModel({ manager });
+
+    const contents = serviceManager.contents;
+    await contents.newUntitled({ type: 'directory' });
+    await contents.newUntitled({ type: 'file' });
+    await contents.newUntitled({ type: 'notebook' });
+  });
+
+  describe('FileBrowser', () => {
+    let fileBrowser: TestFileBrowser;
+
+    beforeEach(() => {
+      const options: FileBrowser.IOptions = {
+        model,
+        id: ''
+      };
+      fileBrowser = new TestFileBrowser(options);
+      Widget.attach(fileBrowser, document.body);
+    });
+
+    describe('#constructor', () => {
+      it('should return new FileBrowser instance', () => {
+        expect(fileBrowser).toBeInstanceOf(FileBrowser);
+      });
+    });
+
+    describe('#createNewDirectory', () => {
+      it('should focus newly created directory after rename', async () => {
+        const created = fileBrowser.createNewDirectory();
+        await signalToPromise(fileBrowser.renameCalled);
+        const editNode = document.querySelector(`.${EDITOR_CLASS}`);
+        if (!editNode) {
+          throw new Error('Edit node not found');
+        }
+        const itemNode = Array.from(
+          document.querySelectorAll(`.${ITEM_CLASS}`)
+        ).find(el => {
+          return el.contains(editNode);
+        });
+        if (!itemNode) {
+          throw new Error('Item node not found');
+        }
+        simulate(editNode, 'keydown', {
+          keyCode: 13,
+          key: 'Enter'
+        });
+        await created;
+        expect(itemNode.contains(document.activeElement)).toBe(true);
+      });
+    });
+
+    describe('#createNewFile', () => {
+      it('should focus newly created file after rename', async () => {
+        const created = fileBrowser.createNewFile({ ext: '.txt' });
+        await signalToPromise(fileBrowser.renameCalled);
+        const editNode = document.querySelector(`.${EDITOR_CLASS}`);
+        if (!editNode) {
+          throw new Error('Edit node not found');
+        }
+        const itemNode = Array.from(
+          document.querySelectorAll(`.${ITEM_CLASS}`)
+        ).find(el => {
+          return el.contains(editNode);
+        });
+        if (!itemNode) {
+          throw new Error('Item node not found');
+        }
+        simulate(editNode, 'keydown', {
+          keyCode: 13,
+          key: 'Enter'
+        });
+        await created;
+        expect(itemNode.contains(document.activeElement)).toBe(true);
+      });
+    });
+  });
+});
diff --git a/packages/filebrowser/test/crumbs.spec.ts b/packages/filebrowser/test/crumbs.spec.ts
index 0bb9dcdd6684..8e284d5cc17a 100644
--- a/packages/filebrowser/test/crumbs.spec.ts
+++ b/packages/filebrowser/test/crumbs.spec.ts
@@ -3,9 +3,10 @@
 
 import { DocumentManager, IDocumentManager } from '@jupyterlab/docmanager';
 import { DocumentRegistry, TextModelFactory } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
 import { ServiceManager } from '@jupyterlab/services';
-import { framePromise, signalToPromise } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { framePromise, signalToPromise } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import expect from 'expect';
@@ -53,16 +54,12 @@ describe('filebrowser/model', () => {
   let path: string;
 
   beforeAll(async () => {
-    const opener: DocumentManager.IWidgetOpener = {
-      open: widget => {
-        /* no op */
-      }
-    };
+    const opener = new DocumentWidgetOpenerMock();
 
     registry = new DocumentRegistry({
       textModelFactory: new TextModelFactory()
     });
-    serviceManager = new Mock.ServiceManagerMock();
+    serviceManager = new ServiceManagerMock();
     manager = new DocumentManager({
       registry,
       opener,
diff --git a/packages/filebrowser/test/listing.spec.ts b/packages/filebrowser/test/listing.spec.ts
new file mode 100644
index 000000000000..0c6abe3f31a1
--- /dev/null
+++ b/packages/filebrowser/test/listing.spec.ts
@@ -0,0 +1,897 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { DocumentManager } from '@jupyterlab/docmanager';
+import { DocumentRegistry } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { signalToPromise } from '@jupyterlab/testing';
+import { Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
+import expect from 'expect';
+import { simulate } from 'simulate-event';
+import { DirListing, FilterFileBrowserModel } from '../src';
+
+const ITEM_TEXT_CLASS = 'jp-DirListing-itemText';
+
+// Returns the minimal args needed to create a new DirListing instance
+const createOptionsForConstructor: () => DirListing.IOptions = () => ({
+  model: new FilterFileBrowserModel({
+    manager: new DocumentManager({
+      registry: new DocumentRegistry(),
+      opener: new DocumentWidgetOpenerMock(),
+      manager: new ServiceManagerMock()
+    })
+  })
+});
+
+class TestDirListing extends DirListing {
+  updated = new Signal<this, void>(this);
+  onUpdateRequest(...args: any[]) {
+    super.onUpdateRequest.apply(this, args);
+    // Allows us to spy on onUpdateRequest.
+    this.updated.emit();
+  }
+}
+
+function getItemTitles(dirListing: DirListing) {
+  const items = Array.from(dirListing.contentNode.children) as HTMLElement[];
+
+  return items.map(
+    node => node.querySelector('.jp-DirListing-itemText span')?.textContent
+  );
+}
+
+describe('filebrowser/listing', () => {
+  describe('DirListing', () => {
+    let dirListing: TestDirListing;
+
+    beforeEach(async () => {
+      const options = createOptionsForConstructor();
+
+      // Start with some files instead of empty before creating the DirListing.
+      // This makes it easier to test things, for example checking/unchecking
+      // because after the DirListing is created, whenever a file is added, the
+      // DirListing selects that file, which causes the file's checkbox to be
+      // checked.
+      await options.model.manager.newUntitled({ type: 'file' });
+      await options.model.manager.newUntitled({ type: 'file' });
+      await options.model.manager.newUntitled({ type: 'file' });
+      await options.model.manager.newUntitled({ type: 'file' });
+
+      // Create the widget and mount it to the DOM.
+      dirListing = new TestDirListing(options);
+      Widget.attach(dirListing, document.body);
+
+      // Wait for the widget to update its internal DOM state before running
+      // tests.
+      await signalToPromise(dirListing.updated);
+    });
+
+    afterEach(() => {
+      // Dispose will detach the widget
+      dirListing.dispose();
+    });
+
+    it('should reflect initial conditions', () => {
+      // Check initial conditions
+      const selectedItems = [...dirListing.selectedItems()];
+      const sortedItems = [...dirListing.sortedItems()];
+      expect(selectedItems).toHaveLength(0);
+      expect(sortedItems).toHaveLength(4);
+    });
+
+    describe('#constructor', () => {
+      it('should return new DirListing instance', () => {
+        const options = createOptionsForConstructor();
+        const dirListing = new DirListing(options);
+        expect(dirListing).toBeInstanceOf(DirListing);
+      });
+    });
+
+    describe('#rename', () => {
+      it('backspace during rename does not trigger goUp method', async () => {
+        dirListing.selectNext();
+        const newNamePromise = dirListing.rename();
+        const goUpSpy = jest.spyOn(dirListing as any, 'goUp');
+        const editNode = dirListing['_editNode'];
+        simulate(editNode, 'keydown', {
+          key: 'Backspace',
+          keyCode: 8
+        });
+        // Can input node's value be changed with simulated key events?
+        editNode.value = 'new_name.txt';
+        simulate(editNode, 'keydown', {
+          key: 'Enter',
+          keyCode: 13
+        });
+        const newName = await newNamePromise;
+        expect(newName).toBe('new_name.txt');
+        expect(goUpSpy).not.toHaveBeenCalled();
+      });
+
+      it('should focus item after rename', async () => {
+        dirListing.selectNext();
+        const newNamePromise = dirListing.rename();
+        const directoryUpdated = signalToPromise(dirListing.updated);
+        const editNode = dirListing['_editNode'];
+        // Give it a name that should put it at the bottom
+        editNode.value = 'z.txt';
+        simulate(editNode, 'keydown', {
+          key: 'Enter',
+          keyCode: 13
+        });
+        await newNamePromise;
+        const sortedItems = [...dirListing.sortedItems()];
+        const lastIndex = sortedItems.length - 1;
+        expect(sortedItems[lastIndex].name).toBe('z.txt');
+        const itemNode = dirListing['_items'][lastIndex];
+        await directoryUpdated;
+        expect(itemNode.contains(document.activeElement)).toBe(true);
+      });
+
+      it('should keep focus on item after user presses escape key', async () => {
+        dirListing.selectNext();
+        const newNamePromise = dirListing.rename();
+        const editNode = dirListing['_editNode'];
+        simulate(editNode, 'keydown', {
+          key: 'Escape',
+          keyCode: 27
+        });
+        await newNamePromise;
+        const itemNode = dirListing['_items'][0];
+        expect(itemNode.contains(document.activeElement)).toBe(true);
+      });
+    });
+
+    describe('#_handleMultiSelect', () => {
+      it('should only select when to-index is same as from-index', () => {
+        // to-index unselected
+        dirListing['_focusItem'](1);
+        expect(Object.keys(dirListing['selection'])).toHaveLength(0);
+        dirListing['_handleMultiSelect'](1);
+        expect(Object.keys(dirListing['selection'])).toHaveLength(1);
+
+        // to-index selected
+        dirListing['_selectItem'](1, false, true);
+        const items = [...dirListing.sortedItems()];
+        expect(dirListing['selection']).toHaveProperty([items[1].path], true);
+        expect(Object.keys(dirListing['selection'])).toHaveLength(1);
+        dirListing['_handleMultiSelect'](1);
+        expect(dirListing['selection']).toHaveProperty([items[1].path], true);
+        expect(Object.keys(dirListing['selection'])).toHaveLength(1);
+      });
+
+      describe('when to-index is selected', () => {
+        // - to-index is 0
+        // - from-index is 2
+        beforeEach(() => {
+          dirListing['_selectItem'](0, true);
+          // This is outside our index range, but let's select it so we can test
+          // that the function only affects the items in [from-index, to-index].
+          dirListing['_selectItem'](3, true);
+        });
+
+        describe('when from-index and all items in-between are selected', () => {
+          beforeEach(() => {
+            dirListing['_selectItem'](1, true);
+            dirListing['_selectItem'](2, true);
+          });
+
+          it('should leave to-index selected and unselect from-index and items in-between', () => {
+            // Directory listing is like this:
+            // 1. selected
+            // 2. selected
+            // 3. selected, focused
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(4);
+            dirListing['_handleMultiSelect'](0);
+            // Now directory should look like:
+            // - selected, unselected, unselected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(Object.keys(dirListing['selection'])).toHaveLength(2);
+            expect(dirListing['selection']).toHaveProperty(
+              [items[0].path],
+              true
+            );
+            expect(dirListing['selection']).toHaveProperty(
+              [items[3].path],
+              true
+            );
+          });
+        });
+
+        describe('when all are selected except from-index', () => {
+          beforeEach(() => {
+            dirListing['_selectItem'](1, true);
+            dirListing['_focusItem'](2);
+          });
+
+          it('should leave to-index selected and unselect from-index and items in-between', () => {
+            // Directory listing is like this:
+            // 1. selected
+            // 2. selected
+            // 3. unselected, focused
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(3);
+            dirListing['_handleMultiSelect'](0);
+            // Now directory should look like:
+            // - selected, unselected, unselected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(Object.keys(dirListing['selection'])).toHaveLength(2);
+            expect(dirListing['selection']).toHaveProperty(
+              [items[0].path],
+              true
+            );
+            expect(dirListing['selection']).toHaveProperty(
+              [items[3].path],
+              true
+            );
+          });
+        });
+
+        describe('when from-index and some items in-between are not selected', () => {
+          beforeEach(() => {
+            dirListing['_focusItem'](2);
+          });
+
+          it('should select all in-between from- and to-index, leaving from-index unselected', () => {
+            // Directory listing is like this:
+            // 1. selected
+            // 2. unselected
+            // 3. unselected, focused
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(2);
+            dirListing['_handleMultiSelect'](0);
+            // Now directory should look like:
+            // - selected, selected, unselected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(items).toHaveLength(4);
+            expect(Object.keys(dirListing['selection'])).toHaveLength(3);
+            expect(dirListing['selection']).not.toHaveProperty([items[2].path]);
+          });
+        });
+
+        describe('when from-index is selected but some items in-between are not', () => {
+          beforeEach(() => {
+            dirListing['_selectItem'](2, true);
+          });
+
+          it('should select all in-between from- and to-index', () => {
+            // Directory listing is like this:
+            // 1. selected
+            // 2. unselected
+            // 3. selected, focused
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(3);
+            dirListing['_handleMultiSelect'](0);
+            // Now directory should look like:
+            // - selected, selected, selected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(items).toHaveLength(4);
+            expect(Object.keys(dirListing['selection'])).toHaveLength(4);
+          });
+        });
+      });
+
+      describe('when to-index is unselected', () => {
+        // - to-index is 2
+        // - from-index is 0
+
+        beforeEach(() => {
+          // This is outside our index range, but let's select it so we can test
+          // that the function only affects the items in [from-index, to-index].
+          dirListing['_selectItem'](3, true);
+        });
+
+        describe('when from-index and in-between items are selected', () => {
+          beforeEach(() => {
+            dirListing['_selectItem'](1, true);
+            dirListing['_selectItem'](0, true);
+          });
+
+          it('should select all between from- and to-index', () => {
+            // Directory listing is like this:
+            // 1. selected, focused
+            // 2. selected
+            // 3. unselected [target]
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(3);
+            dirListing['_handleMultiSelect'](2);
+            // Now directory should look like:
+            // - selected, selected, selected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(items).toHaveLength(4);
+            expect(Object.keys(dirListing['selection'])).toHaveLength(4);
+          });
+        });
+
+        describe('when from-index is unselected but in-between items are selected', () => {
+          beforeEach(() => {
+            dirListing['_selectItem'](1, true);
+            dirListing['_focusItem'](0);
+          });
+
+          it('should select all between from- and to-index', () => {
+            // Directory listing is like this:
+            // 1. unselected, focused
+            // 2. selected
+            // 3. unselected [target]
+            // 4. selected
+            expect(Object.keys(dirListing['selection'])).toHaveLength(2);
+            dirListing['_handleMultiSelect'](2);
+            // Now directory should look like:
+            // - unselected, selected, selected, selected
+            const items = [...dirListing.sortedItems()];
+            expect(items).toHaveLength(4);
+            expect(Object.keys(dirListing['selection'])).toHaveLength(3);
+            expect(dirListing['selection']).not.toHaveProperty([items[0].path]);
+          });
+        });
+      });
+    });
+
+    describe('Enter key', () => {
+      it('should not open an item unless it is selected', () => {
+        // Meaning, do not open the item that is focussed if it is not also
+        // selected.
+        dirListing['_selectItem'](0, true);
+        dirListing['_selectItem'](1, true);
+        dirListing['_focusItem'](2);
+        const handleOpenSpy = jest.spyOn(dirListing as any, 'handleOpen');
+        const itemNode = dirListing['_items'][2];
+        const nameNode = dirListing['_renderer'].getNameNode(itemNode);
+        simulate(nameNode, 'keydown', {
+          key: 'Enter',
+          keyCode: 13
+        });
+        expect(handleOpenSpy).toHaveBeenCalledTimes(2);
+        const sortedItems = [...dirListing.sortedItems()];
+        expect(handleOpenSpy).toHaveBeenCalledWith(sortedItems[0]);
+        expect(handleOpenSpy).toHaveBeenCalledWith(sortedItems[1]);
+        expect(handleOpenSpy).not.toHaveBeenCalledWith(sortedItems[2]);
+      });
+    });
+
+    describe('ArrowDown key', () => {
+      let dirListing: TestDirListing;
+      beforeEach(async () => {
+        const options = createOptionsForConstructor();
+
+        // Start with some files instead of empty before creating the DirListing.
+        // This makes it easier to test checking/unchecking because after the
+        // DirListing is created, whenever a file is added, the DirListing selects
+        // that file, which causes the file's checkbox to be checked.
+        await options.model.manager.newUntitled({ type: 'file' });
+        await options.model.manager.newUntitled({ type: 'file' });
+        await options.model.manager.newUntitled({ type: 'file' });
+
+        // Create the widget and mount it to the DOM.
+        dirListing = new TestDirListing(options);
+        Widget.attach(dirListing, document.body);
+
+        // Wait for the widget to update its internal DOM state before running
+        // tests.
+        await signalToPromise(dirListing.updated);
+      });
+
+      it('should select first item when nothing is selected', async () => {
+        simulate(
+          dirListing.node.querySelector(`.${ITEM_TEXT_CLASS}`)!,
+          'keydown',
+          {
+            key: 'ArrowDown',
+            keyCode: 40
+          }
+        );
+        await signalToPromise(dirListing.updated);
+        const sortedItems = [...dirListing.sortedItems()];
+        const selectedItems = [...dirListing.selectedItems()];
+        expect(selectedItems).toHaveLength(1);
+        expect(selectedItems[0]).toBe(sortedItems[0]);
+      });
+
+      it('should select second item once first item is selected', async () => {
+        dirListing['_selectItem'](0, false);
+        simulate(
+          dirListing.node.querySelector(`.${ITEM_TEXT_CLASS}`)!,
+          'keydown',
+          {
+            key: 'ArrowDown',
+            keyCode: 40
+          }
+        );
+        await signalToPromise(dirListing.updated);
+        const sortedItems = [...dirListing.sortedItems()];
+        const selectedItems = [...dirListing.selectedItems()];
+        expect(selectedItems).toHaveLength(1);
+        expect(selectedItems[0]).toBe(sortedItems[1]);
+      });
+
+      describe('when pressing shift key and next item is selected', () => {
+        it('should unselect if current item is selected and previous is unselected', async () => {
+          dirListing['_selectItem'](2, true);
+          dirListing['_selectItem'](1, true);
+          // This should be the state:
+          // - unselected
+          // - selected, focussed
+          // - selected
+          await signalToPromise(dirListing.updated);
+          simulate(
+            dirListing.node.querySelector(`.${ITEM_TEXT_CLASS}`)!,
+            'keydown',
+            {
+              key: 'ArrowDown',
+              keyCode: 40,
+              shiftKey: true
+            }
+          );
+          await signalToPromise(dirListing.updated);
+          // Now it should be:
+          // - unselected
+          // - unselected
+          // - selected, focussed
+          const sortedItems = [...dirListing.sortedItems()];
+          const selectedItems = [...dirListing.selectedItems()];
+          expect(selectedItems).toHaveLength(1);
+          expect(selectedItems[0]).toBe(sortedItems[2]);
+        });
+
+        it('should leave selected otherwise', async () => {
+          dirListing['_selectItem'](0, true);
+          dirListing['_selectItem'](2, true);
+          dirListing['_selectItem'](1, true);
+          // This should be the state:
+          // - selected
+          // - selected, focussed
+          // - selected
+          await signalToPromise(dirListing.updated);
+          simulate(dirListing.node, 'keydown', {
+            key: 'ArrowDown',
+            keyCode: 40,
+            shiftKey: true
+          });
+          await signalToPromise(dirListing.updated);
+          // Now it should be:
+          // - selected
+          // - selected
+          // - selected, focussed
+          const sortedItems = [...dirListing.sortedItems()];
+          const selectedItems = [...dirListing.selectedItems()];
+          expect(selectedItems).toHaveLength(3);
+          expect(sortedItems).toHaveLength(3);
+        });
+      });
+    });
+
+    describe('checkboxes', () => {
+      const ariaSelectAll = 'Select all files and directories';
+      const ariaDeselectAll = 'Deselect all files and directories';
+      const ariaSelectFile = (filename: string | null) =>
+        `Select file "${filename}"`;
+      const ariaDeselectFile = (filename: string | null) =>
+        `Deselect file "${filename}"`;
+
+      describe('file/item checkbox', () => {
+        it('should be checked after item is selected', async () => {
+          const itemNode = dirListing.contentNode.children[0] as HTMLElement;
+          const checkbox = dirListing.renderer.getCheckboxNode!(
+            itemNode
+          ) as HTMLInputElement;
+          expect(checkbox.checked).toBe(false);
+          const nameNode = dirListing.renderer.getNameNode!(
+            itemNode
+          ) as HTMLElement;
+          expect(checkbox.getAttribute('aria-label')).toBe(
+            ariaSelectFile(nameNode.textContent)
+          );
+          dirListing.selectNext();
+          await signalToPromise(dirListing.updated);
+          expect(checkbox.checked).toBe(true);
+          expect(checkbox.getAttribute('aria-label')).toBe(
+            ariaDeselectFile(nameNode.textContent)
+          );
+        });
+
+        it('should be unchecked after item is unselected', async () => {
+          const itemNode = dirListing.contentNode.children[0] as HTMLElement;
+          const checkbox = dirListing.renderer.getCheckboxNode!(
+            itemNode
+          ) as HTMLInputElement;
+          const nameNode = dirListing.renderer.getNameNode!(
+            itemNode
+          ) as HTMLElement;
+          dirListing.selectNext();
+          await signalToPromise(dirListing.updated);
+          expect(checkbox.checked).toBe(true);
+          expect(checkbox.getAttribute('aria-label')).toBe(
+            ariaDeselectFile(nameNode.textContent)
+          );
+          // Selecting the next item unselects the first.
+          dirListing.selectNext();
+          await signalToPromise(dirListing.updated);
+          expect(checkbox.checked).toBe(false);
+          expect(checkbox.getAttribute('aria-label')).toBe(
+            ariaSelectFile(nameNode.textContent)
+          );
+        });
+
+        it('should allow selecting multiple items', async () => {
+          const itemNodes = Array.from(
+            dirListing.contentNode.children
+          ) as HTMLElement[];
+          // JSDOM doesn't render anything, which means that all the elements have
+          // zero dimensions, so this is needed in order for the DirListing
+          // mousedown handler to believe that the mousedown event is relevant.
+          itemNodes[0].getBoundingClientRect = (): any => ({
+            left: 0,
+            right: 10,
+            top: 0,
+            bottom: 10
+          });
+          itemNodes[1].getBoundingClientRect = (): any => ({
+            left: 0,
+            right: 10,
+            top: 10,
+            bottom: 20
+          });
+          const checkboxes = itemNodes.map(node =>
+            dirListing.renderer.getCheckboxNode!(node)
+          ) as HTMLInputElement[];
+          const items = Array.from(dirListing.sortedItems());
+          expect(dirListing.isSelected(items[0].name)).toBe(false);
+          expect(dirListing.isSelected(items[1].name)).toBe(false);
+          simulate(checkboxes[0], 'mousedown', {
+            clientX: 1,
+            clientY: 1
+          });
+          simulate(checkboxes[1], 'mousedown', {
+            clientX: 1,
+            clientY: 11
+          });
+          await signalToPromise(dirListing.updated);
+          expect(dirListing.isSelected(items[0].name)).toBe(true);
+          expect(dirListing.isSelected(items[1].name)).toBe(true);
+        });
+
+        it('should reflect multiple items selected', async () => {
+          const itemNodes = Array.from(
+            dirListing.contentNode.children
+          ) as HTMLElement[];
+          const checkboxes = itemNodes.map(node =>
+            dirListing.renderer.getCheckboxNode!(node)
+          ) as HTMLInputElement[];
+          const nameNodes = itemNodes.map(node =>
+            dirListing.renderer.getNameNode!(node)
+          ) as HTMLElement[];
+          expect(checkboxes[0].checked).toBe(false);
+          expect(checkboxes[1].checked).toBe(false);
+          expect(checkboxes[0].getAttribute('aria-label')).toBe(
+            ariaSelectFile(nameNodes[0].textContent)
+          );
+          expect(checkboxes[1].getAttribute('aria-label')).toBe(
+            ariaSelectFile(nameNodes[1].textContent)
+          );
+          dirListing.selectNext();
+          dirListing.selectNext(true); // true = keep existing selection
+          await signalToPromise(dirListing.updated);
+          expect(checkboxes[0].checked).toBe(true);
+          expect(checkboxes[1].checked).toBe(true);
+          expect(checkboxes[0].getAttribute('aria-label')).toBe(
+            ariaDeselectFile(nameNodes[0].textContent)
+          );
+          expect(checkboxes[1].getAttribute('aria-label')).toBe(
+            ariaDeselectFile(nameNodes[1].textContent)
+          );
+        });
+
+        // A double click on the item should open the item; however, a double
+        // click on the checkbox should only check/uncheck the box.
+        it('should not open item on double click', () => {
+          const itemNode = dirListing.contentNode.children[0] as HTMLElement;
+          const checkbox = dirListing.renderer.getCheckboxNode!(
+            itemNode
+          ) as HTMLInputElement;
+          const wasOpened = jest.fn();
+          dirListing.onItemOpened.connect(wasOpened);
+          simulate(checkbox, 'dblclick');
+          expect(wasOpened).not.toHaveBeenCalled();
+          dirListing.onItemOpened.disconnect(wasOpened);
+        });
+
+        it('should not become unchecked due to right-click on selected item', async () => {
+          const itemNode = dirListing.contentNode.children[0] as HTMLElement;
+          itemNode.getBoundingClientRect = (): any => ({
+            left: 0,
+            right: 10,
+            top: 0,
+            bottom: 10
+          });
+          const checkbox = dirListing.renderer.getCheckboxNode!(
+            itemNode
+          ) as HTMLInputElement;
+          const item = dirListing.sortedItems().next();
+          const waitForUpdate = signalToPromise(dirListing.updated);
+          await dirListing.selectItemByName(item.value.name);
+          await waitForUpdate;
+          expect(checkbox.checked).toBe(true);
+          expect(dirListing.isSelected(item.value.name)).toBe(true);
+          const waitForUpdate2 = signalToPromise(dirListing.updated);
+          simulate(checkbox, 'mousedown', {
+            clientX: 1,
+            clientY: 1,
+            button: 2
+          });
+          await waitForUpdate2;
+          // Item is still selected and checkbox is still checked after
+          // right-click.
+          expect(dirListing.isSelected(item.value.name)).toBe(true);
+          expect(checkbox.checked).toBe(true);
+        });
+
+        // This essentially tests that preventDefault has been called on the click
+        // handler (which also handles keyboard and touch "clicks" in addition to
+        // mouse clicks). In other words, only the DirListing should check/uncheck
+        // the checkbox, not the browser's built-in default handler for the click.
+        it('should not get checked by the default action of a click', () => {
+          const itemNode = dirListing.contentNode.children[0] as HTMLElement;
+          const checkbox = dirListing.renderer.getCheckboxNode!(
+            itemNode
+          ) as HTMLInputElement;
+          expect(checkbox.checked).toBe(false);
+          simulate(checkbox, 'click', { bubbles: false });
+          expect(checkbox.checked).toBe(false);
+        });
+      });
+
+      describe('check-all checkbox', () => {
+        it('should be unchecked when the current directory is empty', async () => {
+          const { path } = await dirListing.model.manager.newUntitled({
+            type: 'directory'
+          });
+          await dirListing.model.cd(path);
+          await signalToPromise(dirListing.updated);
+          const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+            dirListing.headerNode
+          ) as HTMLInputElement;
+          expect(headerCheckbox.checked).toBe(false);
+          expect(headerCheckbox!.indeterminate).toBe(false);
+        });
+
+        describe('when previously unchecked', () => {
+          const expectInitialConditions = () => {
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            expect(headerCheckbox.checked).toBe(false);
+            expect(headerCheckbox!.indeterminate).toBe(false);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(0);
+            expect(headerCheckbox.getAttribute('aria-label')).toBe(
+              ariaSelectAll
+            );
+          };
+          it('should check all', async () => {
+            expectInitialConditions();
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            simulate(headerCheckbox, 'click');
+            await signalToPromise(dirListing.updated);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(4);
+            expect(headerCheckbox.getAttribute('aria-label')).toBe(
+              ariaDeselectAll
+            );
+          });
+        });
+
+        describe('when previously indeterminate', () => {
+          beforeEach(async () => {
+            dirListing.selectNext();
+            await signalToPromise(dirListing.updated);
+          });
+
+          const expectInitialConditions = () => {
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            expect(headerCheckbox.indeterminate).toBe(true);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(1);
+            expect(headerCheckbox.getAttribute('aria-label')).toBe(
+              ariaDeselectAll
+            );
+          };
+          it('should uncheck all', async () => {
+            expectInitialConditions();
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            simulate(headerCheckbox, 'click');
+            await signalToPromise(dirListing.updated);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(0);
+            expect(headerCheckbox.getAttribute('aria-label')).toBe(
+              ariaSelectAll
+            );
+          });
+        });
+
+        describe('when previously checked', () => {
+          beforeEach(async () => {
+            // Select/check all items
+            dirListing.selectNext(true);
+            dirListing.selectNext(true);
+            dirListing.selectNext(true);
+            dirListing.selectNext(true);
+            await signalToPromise(dirListing.updated);
+          });
+          const expectInitialConditions = () => {
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            expect(headerCheckbox.checked).toBe(true);
+            expect(headerCheckbox.indeterminate).toBe(false);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(4);
+          };
+          it('should uncheck all', async () => {
+            expectInitialConditions();
+            const headerCheckbox = dirListing.renderer.getCheckboxNode!(
+              dirListing.headerNode
+            ) as HTMLInputElement;
+            simulate(headerCheckbox, 'click');
+            await signalToPromise(dirListing.updated);
+            expect(Array.from(dirListing.selectedItems())).toHaveLength(0);
+          });
+        });
+      });
+    });
+
+    describe('should sort correctly', () => {
+      beforeEach(async () => {
+        const options = createOptionsForConstructor();
+
+        const files: {
+          name: string;
+          type: 'file' | 'directory' | 'notebook';
+        }[] = [
+          { name: '1.txt', type: 'file' },
+          { name: '2', type: 'directory' },
+          { name: '3.ipynb', type: 'notebook' },
+          { name: '4.txt', type: 'file' },
+          { name: '5', type: 'directory' },
+          { name: '6.ipynb', type: 'notebook' }
+        ];
+
+        // Create files that can be sorted alphabetically
+        for (const file of files) {
+          const model = await options.model.manager.newUntitled({
+            type: file.type
+          });
+          await options.model.manager.rename(model.path, file.name);
+        }
+
+        // Create the widget and mount it to the DOM.
+        dirListing = new TestDirListing(options);
+        Widget.attach(dirListing, document.body);
+
+        // Wait for the widget to update its internal DOM state before running
+        // tests.
+        await signalToPromise(dirListing.updated);
+      });
+
+      describe('with sortNotebooksFirst set to false', () => {
+        it('should sort alphabetically ascending correctly', async () => {
+          dirListing.sort({
+            direction: 'ascending',
+            key: 'name'
+          });
+          await signalToPromise(dirListing.updated);
+
+          expect(getItemTitles(dirListing)).toEqual([
+            '2',
+            '5',
+            '1.txt',
+            '3.ipynb',
+            '4.txt',
+            '6.ipynb'
+          ]);
+        });
+        it('should sort alphabetically descending correctly', async () => {
+          dirListing.sort({
+            direction: 'descending',
+            key: 'name'
+          });
+          await signalToPromise(dirListing.updated);
+
+          expect(getItemTitles(dirListing)).toEqual([
+            '5',
+            '2',
+            '6.ipynb',
+            '4.txt',
+            '3.ipynb',
+            '1.txt'
+          ]);
+        });
+      });
+
+      describe('with sortNotebooksFirst set to true', () => {
+        it('should sort alphabetically ascending correctly', async () => {
+          dirListing.sort({
+            direction: 'ascending',
+            key: 'name'
+          });
+          await signalToPromise(dirListing.updated);
+          dirListing.setNotebooksFirstSorting(true);
+          await signalToPromise(dirListing.updated);
+
+          expect(getItemTitles(dirListing)).toEqual([
+            '2',
+            '5',
+            '3.ipynb',
+            '6.ipynb',
+            '1.txt',
+            '4.txt'
+          ]);
+        });
+        it('should sort alphabetically descending correctly', async () => {
+          dirListing.setNotebooksFirstSorting(true);
+          await signalToPromise(dirListing.updated);
+          dirListing.sort({
+            direction: 'descending',
+            key: 'name'
+          });
+          await signalToPromise(dirListing.updated);
+
+          expect(getItemTitles(dirListing)).toEqual([
+            '5',
+            '2',
+            '6.ipynb',
+            '3.ipynb',
+            '4.txt',
+            '1.txt'
+          ]);
+        });
+      });
+
+      describe('with sortNotebooksFirst toggled on/off', () => {
+        it('should sort correctly when switching between options', async () => {
+          dirListing.sort({
+            direction: 'descending',
+            key: 'last_modified'
+          });
+          await signalToPromise(dirListing.updated);
+          expect(getItemTitles(dirListing)).toEqual([
+            '2',
+            '5',
+            '1.txt',
+            '3.ipynb',
+            '4.txt',
+            '6.ipynb'
+          ]);
+
+          dirListing.setNotebooksFirstSorting(true);
+          await signalToPromise(dirListing.updated);
+          expect(getItemTitles(dirListing)).toEqual([
+            '2',
+            '5',
+            '3.ipynb',
+            '6.ipynb',
+            '1.txt',
+            '4.txt'
+          ]);
+
+          dirListing.setNotebooksFirstSorting(false);
+          await signalToPromise(dirListing.updated);
+          expect(getItemTitles(dirListing)).toEqual([
+            '2',
+            '5',
+            '1.txt',
+            '3.ipynb',
+            '4.txt',
+            '6.ipynb'
+          ]);
+        });
+      });
+    });
+  });
+});
diff --git a/packages/filebrowser/test/model.spec.ts b/packages/filebrowser/test/model.spec.ts
index f09261688d85..98716eeaf1e1 100644
--- a/packages/filebrowser/test/model.spec.ts
+++ b/packages/filebrowser/test/model.spec.ts
@@ -4,6 +4,7 @@
 import { PageConfig } from '@jupyterlab/coreutils';
 import { DocumentManager, IDocumentManager } from '@jupyterlab/docmanager';
 import { DocumentRegistry, TextModelFactory } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
 import { Contents, ServiceManager } from '@jupyterlab/services';
 import { StateDB } from '@jupyterlab/statedb';
 import {
@@ -11,9 +12,11 @@ import {
   dismissDialog,
   signalToPromises,
   sleep
-} from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
-import { toArray } from '@lumino/algorithm';
+} from '@jupyterlab/testing';
+import {
+  ContentsManagerMock,
+  ServiceManagerMock
+} from '@jupyterlab/services/lib/testutils';
 import { UUID } from '@lumino/coreutils';
 import expect from 'expect';
 import { CHUNK_SIZE, FileBrowserModel, LARGE_FILE_SIZE } from '../src';
@@ -22,7 +25,7 @@ import { CHUNK_SIZE, FileBrowserModel, LARGE_FILE_SIZE } from '../src';
  * A contents manager that delays requests by less each time it is called
  * in order to simulate out-of-order responses from the server.
  */
-class DelayedContentsManager extends Mock.ContentsManagerMock {
+class DelayedContentsManager extends ContentsManagerMock {
   get(
     path: string,
     options?: Contents.IFetchOptions
@@ -31,9 +34,12 @@ class DelayedContentsManager extends Mock.ContentsManagerMock {
       const delay = this._delay;
       this._delay -= 500;
       void super.get(path, options).then(contents => {
-        setTimeout(() => {
-          resolve(contents);
-        }, Math.max(delay, 0));
+        setTimeout(
+          () => {
+            resolve(contents);
+          },
+          Math.max(delay, 0)
+        );
       });
     });
   }
@@ -50,17 +56,13 @@ describe('filebrowser/model', () => {
   let subDir: string;
   let subSubDir: string;
   let state: StateDB;
-  const opener: DocumentManager.IWidgetOpener = {
-    open: widget => {
-      /* no op */
-    }
-  };
+  const opener = new DocumentWidgetOpenerMock();
 
   beforeAll(() => {
     registry = new DocumentRegistry({
       textModelFactory: new TextModelFactory()
     });
-    serviceManager = new Mock.ServiceManagerMock();
+    serviceManager = new ServiceManagerMock();
     manager = new DocumentManager({
       registry,
       opener,
@@ -196,7 +198,7 @@ describe('filebrowser/model', () => {
     describe('#items()', () => {
       it('should get an iterator of items in the current path', () => {
         const items = model.items();
-        expect(items.next()).toBeTruthy();
+        expect(!items.next().done).toBe(true);
       });
     });
 
@@ -217,7 +219,7 @@ describe('filebrowser/model', () => {
           type: 'test'
         });
         await model.cd();
-        expect(model.sessions().next()).toBeTruthy();
+        expect(!model.sessions().next().done).toBe(true);
         await session.shutdown();
       });
     });
@@ -236,8 +238,8 @@ describe('filebrowser/model', () => {
     });
 
     describe('#refresh()', () => {
-      it('should refresh the contents', () => {
-        return model.refresh();
+      it('should refresh the contents', async () => {
+        await expect(model.refresh()).resolves.not.toThrow();
       });
     });
 
@@ -264,7 +266,7 @@ describe('filebrowser/model', () => {
       });
 
       it('should be resilient to a slow initial fetch', async () => {
-        const delayedServiceManager = new Mock.ServiceManagerMock();
+        const delayedServiceManager = new ServiceManagerMock();
         (delayedServiceManager as any).contents = new DelayedContentsManager();
         const contents = await delayedServiceManager.contents.newUntitled({
           type: 'directory'
@@ -321,7 +323,7 @@ describe('filebrowser/model', () => {
     });
 
     describe('#download()', () => {
-      it('should download the file without error', () => {
+      it.skip('should download the file without error', () => {
         // TODO: how to test this?
       });
     });
@@ -452,7 +454,7 @@ describe('filebrowser/model', () => {
           );
 
           const uploaded = model.upload(file);
-          expect(toArray(model.uploads())).toEqual([]);
+          expect(Array.from(model.uploads())).toEqual([]);
           expect(await start).toEqual([
             model,
             {
@@ -461,7 +463,7 @@ describe('filebrowser/model', () => {
               newValue: { path: fname, progress: 0 }
             }
           ]);
-          expect(toArray(model.uploads())).toEqual([
+          expect(Array.from(model.uploads())).toEqual([
             { path: fname, progress: 0 }
           ]);
           expect(await first).toEqual([
@@ -472,7 +474,7 @@ describe('filebrowser/model', () => {
               newValue: { path: fname, progress: 0 }
             }
           ]);
-          expect(toArray(model.uploads())).toEqual([
+          expect(Array.from(model.uploads())).toEqual([
             { path: fname, progress: 0 }
           ]);
           expect(await second).toEqual([
@@ -483,7 +485,7 @@ describe('filebrowser/model', () => {
               newValue: { path: fname, progress: 1 / 2 }
             }
           ]);
-          expect(toArray(model.uploads())).toEqual([
+          expect(Array.from(model.uploads())).toEqual([
             { path: fname, progress: 1 / 2 }
           ]);
           expect(await finished).toEqual([
@@ -494,7 +496,7 @@ describe('filebrowser/model', () => {
               newValue: null
             }
           ]);
-          expect(toArray(model.uploads())).toEqual([]);
+          expect(Array.from(model.uploads())).toEqual([]);
           await uploaded;
         });
 
diff --git a/packages/filebrowser/test/openfiledialog.spec.ts b/packages/filebrowser/test/openfiledialog.spec.ts
index ab49d7cb59b2..540fc8aa441b 100644
--- a/packages/filebrowser/test/openfiledialog.spec.ts
+++ b/packages/filebrowser/test/openfiledialog.spec.ts
@@ -3,6 +3,7 @@
 
 import { DocumentManager, IDocumentManager } from '@jupyterlab/docmanager';
 import { DocumentRegistry, TextModelFactory } from '@jupyterlab/docregistry';
+import { DocumentWidgetOpenerMock } from '@jupyterlab/docregistry/lib/testutils';
 import { Contents, ServiceManager } from '@jupyterlab/services';
 import {
   acceptDialog,
@@ -10,9 +11,8 @@ import {
   framePromise,
   sleep,
   waitForDialog
-} from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
-import { toArray } from '@lumino/algorithm';
+} from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import expect from 'expect';
 import { simulate } from 'simulate-event';
 import { FileBrowserModel, FileDialog, FilterFileBrowserModel } from '../src';
@@ -23,16 +23,12 @@ describe('@jupyterlab/filebrowser', () => {
   let registry: DocumentRegistry;
 
   beforeAll(async () => {
-    const opener: DocumentManager.IWidgetOpener = {
-      open: widget => {
-        /* no op */
-      }
-    };
+    const opener = new DocumentWidgetOpenerMock();
 
     registry = new DocumentRegistry({
       textModelFactory: new TextModelFactory()
     });
-    serviceManager = new Mock.ServiceManagerMock();
+    serviceManager = new ServiceManagerMock();
     manager = new DocumentManager({
       registry,
       opener,
@@ -70,23 +66,23 @@ describe('@jupyterlab/filebrowser', () => {
         const model = new FileBrowserModel({ manager });
         await model.cd();
 
-        const filteredItems = toArray(filteredModel.items());
-        const items = toArray(model.items());
+        const filteredItems = Array.from(filteredModel.items());
+        const items = Array.from(model.items());
         expect(filteredItems.length).toBe(items.length);
       });
 
       it('should list all directories if filterDirectories is false', async () => {
         const filteredModel = new FilterFileBrowserModel({
           manager,
-          filter: (model: Contents.IModel) => false,
+          filter: (model: Contents.IModel) => null,
           filterDirectories: false
         });
         await filteredModel.cd();
         const model = new FileBrowserModel({ manager });
         await model.cd();
 
-        const filteredItems = toArray(filteredModel.items());
-        const items = toArray(model.items());
+        const filteredItems = Array.from(filteredModel.items());
+        const items = Array.from(model.items());
         const folders = items.filter(item => item.type === 'directory');
         expect(filteredItems.length).toBe(folders.length);
       });
@@ -94,14 +90,14 @@ describe('@jupyterlab/filebrowser', () => {
       it('should filter files and directories if filterDirectories is true', async () => {
         const filteredModel = new FilterFileBrowserModel({
           manager,
-          filter: (model: Contents.IModel) => false,
+          filter: (model: Contents.IModel) => null,
           filterDirectories: true
         });
         await filteredModel.cd();
         const model = new FileBrowserModel({ manager });
         await model.cd();
 
-        const filteredItems = toArray(filteredModel.items());
+        const filteredItems = Array.from(filteredModel.items());
         expect(filteredItems.length).toBe(0);
       });
 
@@ -115,10 +111,10 @@ describe('@jupyterlab/filebrowser', () => {
         const model = new FileBrowserModel({ manager });
         await model.cd();
 
-        const filteredItems = toArray(
+        const filteredItems = Array.from(
           filteredModel.items()
         ) as Contents.IModel[];
-        const items = toArray(model.items());
+        const items = Array.from(model.items());
         const shownItems = items.filter(item => item.type === 'notebook');
         expect(filteredItems.length).toBe(shownItems.length);
         const notebooks = filteredItems.filter(
diff --git a/packages/filebrowser/tsconfig.test.json b/packages/filebrowser/tsconfig.test.json
index 8e2fb2719ef6..9c220cfb187f 100644
--- a/packages/filebrowser/tsconfig.test.json
+++ b/packages/filebrowser/tsconfig.test.json
@@ -33,34 +33,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docmanager"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../statedb"
-    },
-    {
-      "path": "../statusbar"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/fileeditor-extension/package.json b/packages/fileeditor-extension/package.json
index 462255d9e591..0b921bbd239e 100644
--- a/packages/fileeditor-extension/package.json
+++ b/packages/fileeditor-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/fileeditor-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Editor Widget Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,30 +38,39 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@codemirror/commands": "^6.2.3",
+    "@codemirror/search": "^6.3.0",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer-extension/schema/files.json b/packages/fileeditor-extension/schema/completer.json
similarity index 100%
rename from packages/completer-extension/schema/files.json
rename to packages/fileeditor-extension/schema/completer.json
diff --git a/packages/fileeditor-extension/schema/plugin.json b/packages/fileeditor-extension/schema/plugin.json
index b9e2605897d1..4ad21681dd8b 100644
--- a/packages/fileeditor-extension/schema/plugin.json
+++ b/packages/fileeditor-extension/schema/plugin.json
@@ -26,6 +26,27 @@
           }
         ]
       },
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "type": "separator",
+            "rank": 40
+          },
+          {
+            "type": "submenu",
+            "submenu": {
+              "id": "jp-mainmenu-view-codemirror-language",
+              "label": "Text Editor Syntax Highlighting"
+            },
+            "rank": 40
+          },
+          {
+            "type": "separator",
+            "rank": 40
+          }
+        ]
+      },
       {
         "id": "jp-mainmenu-settings",
         "items": [
@@ -40,38 +61,30 @@
               "label": "Text Editor Indentation",
               "items": [
                 {
-                  "command": "fileeditor:change-tabs",
-                  "args": {
-                    "insertSpaces": false,
-                    "size": 4
-                  }
+                  "command": "fileeditor:change-tabs"
                 },
                 {
                   "command": "fileeditor:change-tabs",
                   "args": {
-                    "insertSpaces": true,
-                    "size": 1
+                    "size": "1"
                   }
                 },
                 {
                   "command": "fileeditor:change-tabs",
                   "args": {
-                    "insertSpaces": true,
-                    "size": 2
+                    "size": "2"
                   }
                 },
                 {
                   "command": "fileeditor:change-tabs",
                   "args": {
-                    "insertSpaces": true,
-                    "size": 4
+                    "size": "4"
                   }
                 },
                 {
                   "command": "fileeditor:change-tabs",
                   "args": {
-                    "insertSpaces": true,
-                    "size": 8
+                    "size": "8"
                   }
                 }
               ]
@@ -97,6 +110,19 @@
               "delta": -1,
               "isMenu": true
             }
+          },
+          {
+            "type": "submenu",
+            "submenu": {
+              "id": "jp-mainmenu-settings-codemirror-theme",
+              "label": "Text Editor Theme",
+              "items": []
+            },
+            "rank": 31
+          },
+          {
+            "type": "separator",
+            "rank": 39
           }
         ]
       }
@@ -151,27 +177,18 @@
   "properties": {
     "editorConfig": {
       "title": "Editor Configuration",
-      "description": "The configuration for all text editors.\nIf `fontFamily`, `fontSize` or `lineHeight` are `null`,\nvalues from current theme are used.",
-      "$ref": "#/definitions/editorConfig",
+      "description": "The configuration for all text editors; it will override the CodeMirror default configuration.\nIf `fontFamily`, `fontSize` or `lineHeight` are `null`,\nvalues from current theme are used.",
+      "type": "object",
       "default": {
-        "autoClosingBrackets": false,
-        "codeFolding": false,
-        "cursorBlinkRate": 530,
-        "fontFamily": null,
-        "fontSize": null,
-        "insertSpaces": true,
-        "lineHeight": null,
-        "lineNumbers": true,
-        "lineWrap": "on",
-        "matchBrackets": true,
-        "readOnly": false,
-        "rulers": [],
-        "showTrailingSpace": false,
-        "tabSize": 4,
-        "wordWrapColumn": 80,
-        "showTrailingSpace": false
+        "lineNumbers": true
       }
     },
+    "scrollPastEnd": {
+      "title": "Scroll behavior",
+      "description": "Whether to scroll past the end of text document.",
+      "type": "boolean",
+      "default": true
+    },
     "toolbar": {
       "title": "Text editor toolbar items",
       "description": "Note: To disable a toolbar item,\ncopy it to User Preferences and add the\n\"disabled\" key. Toolbar description:",
@@ -185,94 +202,6 @@
   "additionalProperties": false,
   "type": "object",
   "definitions": {
-    "editorConfig": {
-      "properties": {
-        "autoClosingBrackets": {
-          "type": "boolean",
-          "default": false,
-          "title": "Auto Closing Brackets"
-        },
-        "codeFolding": {
-          "type": "boolean",
-          "default": false,
-          "title": "Code Folding"
-        },
-        "cursorBlinkRate": {
-          "type": "number",
-          "title": "Cursor blinking rate",
-          "description": "Half-period in milliseconds used for cursor blinking. The default blink rate is 530ms. By setting this to zero, blinking can be disabled. A negative value hides the cursor entirely.",
-          "cursorBlinkRate": 530
-        },
-        "fontFamily": {
-          "type": ["string", "null"],
-          "title": "Font Family",
-          "default": null
-        },
-        "fontSize": {
-          "type": ["integer", "null"],
-          "title": "Font Size",
-          "minimum": 1,
-          "maximum": 100,
-          "default": null
-        },
-        "insertSpaces": {
-          "type": "boolean",
-          "title": "Insert Spaces",
-          "default": true
-        },
-        "lineHeight": {
-          "type": ["number", "null"],
-          "title": "Line Height",
-          "default": null
-        },
-        "lineNumbers": {
-          "type": "boolean",
-          "title": "Line Numbers",
-          "default": true
-        },
-        "lineWrap": {
-          "type": "string",
-          "title": "Line Wrap",
-          "enum": ["off", "on", "wordWrapColumn", "bounded"],
-          "default": "on"
-        },
-        "matchBrackets": {
-          "type": "boolean",
-          "title": "Match Brackets",
-          "default": true
-        },
-        "readOnly": {
-          "type": "boolean",
-          "title": "Read Only",
-          "default": false
-        },
-        "rulers": {
-          "type": "array",
-          "title": "Rulers",
-          "items": {
-            "type": "number"
-          },
-          "default": []
-        },
-        "showTrailingSpace": {
-          "type": "boolean",
-          "title": "Show Trailing Space",
-          "default": false
-        },
-        "tabSize": {
-          "type": "number",
-          "title": "Tab Size",
-          "default": 4
-        },
-        "wordWrapColumn": {
-          "type": "integer",
-          "title": "Word Wrap Column",
-          "default": 80
-        }
-      },
-      "additionalProperties": false,
-      "type": "object"
-    },
     "toolbarItem": {
       "properties": {
         "name": {
@@ -303,6 +232,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/fileeditor-extension/src/commands.ts b/packages/fileeditor-extension/src/commands.ts
index eb30e3b04d4b..404f3676d7f1 100644
--- a/packages/fileeditor-extension/src/commands.ts
+++ b/packages/fileeditor-extension/src/commands.ts
@@ -1,30 +1,40 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-
+import { selectAll } from '@codemirror/commands';
+import { findNext, gotoLine } from '@codemirror/search';
+import { JupyterFrontEnd } from '@jupyterlab/application';
 import {
   Clipboard,
   ICommandPalette,
   ISessionContextDialogs,
-  sessionContextDialogs,
+  MainAreaWidget,
   WidgetTracker
 } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import {
+  CodeEditor,
+  CodeViewerWidget,
+  IEditorMimeTypeService,
+  IEditorServices
+} from '@jupyterlab/codeeditor';
+import {
+  CodeMirrorEditor,
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry
+} from '@jupyterlab/codemirror';
+import { ICompletionProviderManager } from '@jupyterlab/completer';
 import { IConsoleTracker } from '@jupyterlab/console';
 import { MarkdownCodeBlocks, PathExt } from '@jupyterlab/coreutils';
 import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { IFileBrowserFactory } from '@jupyterlab/filebrowser';
-import { FileEditor } from '@jupyterlab/fileeditor';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
+import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
 import { ILauncher } from '@jupyterlab/launcher';
-import {
-  IEditMenu,
-  IFileMenu,
-  IMainMenu,
-  IRunMenu,
-  IViewMenu
-} from '@jupyterlab/mainmenu';
+import { IMainMenu } from '@jupyterlab/mainmenu';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { TranslationBundle } from '@jupyterlab/translation';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
 import {
   consoleIcon,
   copyIcon,
@@ -36,6 +46,7 @@ import {
   textEditorIcon,
   undoIcon
 } from '@jupyterlab/ui-components';
+import { find } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import {
   JSONObject,
@@ -45,6 +56,7 @@ import {
 
 const autoClosingBracketsNotebook = 'notebook:toggle-autoclosing-brackets';
 const autoClosingBracketsConsole = 'console:toggle-autoclosing-brackets';
+
 /**
  * The command IDs used by the fileeditor plugin.
  */
@@ -57,12 +69,19 @@ export namespace CommandIDs {
 
   export const lineNumbers = 'fileeditor:toggle-line-numbers';
 
+  export const currentLineNumbers = 'fileeditor:toggle-current-line-numbers';
+
   export const lineWrap = 'fileeditor:toggle-line-wrap';
 
+  export const currentLineWrap = 'fileeditor:toggle-current-line-wrap';
+
   export const changeTabs = 'fileeditor:change-tabs';
 
   export const matchBrackets = 'fileeditor:toggle-match-brackets';
 
+  export const currentMatchBrackets =
+    'fileeditor:toggle-current-match-brackets';
+
   export const autoClosingBrackets = 'fileeditor:toggle-autoclosing-brackets';
 
   export const autoClosingBracketsUniversal =
@@ -72,6 +91,8 @@ export namespace CommandIDs {
 
   export const replaceSelection = 'fileeditor:replace-selection';
 
+  export const restartConsole = 'fileeditor:restart-console';
+
   export const runCode = 'fileeditor:run-code';
 
   export const runAllCode = 'fileeditor:run-all';
@@ -89,6 +110,20 @@ export namespace CommandIDs {
   export const paste = 'fileeditor:paste';
 
   export const selectAll = 'fileeditor:select-all';
+
+  export const invokeCompleter = 'completer:invoke-file';
+
+  export const selectCompleter = 'completer:select-file';
+
+  export const openCodeViewer = 'code-viewer:open';
+
+  export const changeTheme = 'fileeditor:change-theme';
+
+  export const changeLanguage = 'fileeditor:change-language';
+
+  export const find = 'fileeditor:find';
+
+  export const goToLine = 'fileeditor:go-to-line';
 }
 
 export interface IFileTypeData extends ReadonlyJSONObject {
@@ -104,47 +139,20 @@ export interface IFileTypeData extends ReadonlyJSONObject {
  */
 export const FACTORY = 'Editor';
 
-const userSettings = [
-  'autoClosingBrackets',
-  'codeFolding',
-  'cursorBlinkRate',
-  'fontFamily',
-  'fontSize',
-  'insertSpaces',
-  'lineHeight',
-  'lineNumbers',
-  'lineWrap',
-  'matchBrackets',
-  'readOnly',
-  'rulers',
-  'showTrailingSpace',
-  'tabSize',
-  'wordWrapColumn'
-];
-
-function filterUserSettings(config: CodeEditor.IConfig): CodeEditor.IConfig {
-  const filteredConfig = { ...config };
-  // Delete parts of the config that are not user settings (like handlePaste).
-  for (let k of Object.keys(config)) {
-    if (!userSettings.includes(k)) {
-      delete (config as any)[k];
-    }
-  }
-  return filteredConfig;
-}
-
-let config: CodeEditor.IConfig = filterUserSettings(CodeEditor.defaultConfig);
-
 /**
  * A utility class for adding commands and menu items,
  * for use by the File Editor extension or other Editor extensions.
  */
 export namespace Commands {
+  let config: Record<string, any> = {};
+  let scrollPastEnd = true;
+
   /**
    * Accessor function that returns the createConsole function for use by Create Console commands
    */
   function getCreateConsoleFunction(
-    commands: CommandRegistry
+    commands: CommandRegistry,
+    languages: IEditorLanguageRegistry
   ): (
     widget: IDocumentWidget<FileEditor>,
     args?: ReadonlyPartialJSONObject
@@ -158,7 +166,10 @@ export namespace Commands {
         activate: options['activate'],
         name: widget.context.contentsModel?.name,
         path: widget.context.path,
-        preferredLanguage: widget.context.model.defaultKernelLanguage,
+        // Default value is an empty string -> using OR operator
+        preferredLanguage:
+          widget.context.model.defaultKernelLanguage ||
+          (languages.findByFileName(widget.context.path)?.name ?? ''),
         ref: widget.id,
         insertMode: 'split-bottom'
       });
@@ -177,13 +188,20 @@ export namespace Commands {
     settings: ISettingRegistry.ISettings,
     commands: CommandRegistry
   ): void {
-    config = filterUserSettings({
-      ...CodeEditor.defaultConfig,
-      ...(settings.get('editorConfig').composite as JSONObject)
-    });
+    config =
+      (settings.get('editorConfig').composite as Record<string, any>) ?? {};
+    scrollPastEnd = settings.get('scrollPasteEnd').composite as boolean;
 
     // Trigger a refresh of the rendered commands
-    commands.notifyCommandChanged();
+    commands.notifyCommandChanged(CommandIDs.lineNumbers);
+    commands.notifyCommandChanged(CommandIDs.currentLineNumbers);
+    commands.notifyCommandChanged(CommandIDs.lineWrap);
+    commands.notifyCommandChanged(CommandIDs.currentLineWrap);
+    commands.notifyCommandChanged(CommandIDs.changeTabs);
+    commands.notifyCommandChanged(CommandIDs.matchBrackets);
+    commands.notifyCommandChanged(CommandIDs.currentMatchBrackets);
+    commands.notifyCommandChanged(CommandIDs.autoClosingBrackets);
+    commands.notifyCommandChanged(CommandIDs.changeLanguage);
   }
 
   /**
@@ -203,7 +221,7 @@ export namespace Commands {
    */
   export function updateWidget(widget: FileEditor): void {
     const editor = widget.editor;
-    editor.setOptions({ ...config });
+    editor.setOptions({ ...config, scrollPastEnd });
   }
 
   /**
@@ -216,59 +234,15 @@ export namespace Commands {
     id: string,
     isEnabled: () => boolean,
     tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    browserFactory: IFileBrowserFactory
-  ): void {
-    // Add a command to change font size.
-    addChangeFontSizeCommand(commands, settingRegistry, trans, id);
-
-    addLineNumbersCommand(commands, settingRegistry, trans, id, isEnabled);
-
-    addWordWrapCommand(commands, settingRegistry, trans, id, isEnabled);
-
-    addChangeTabsCommand(commands, settingRegistry, trans, id);
-
-    addMatchBracketsCommand(commands, settingRegistry, trans, id, isEnabled);
-
-    addAutoClosingBracketsCommand(commands, settingRegistry, trans, id);
-
-    addReplaceSelectionCommand(commands, tracker, trans, isEnabled);
-
-    addCreateConsoleCommand(commands, tracker, trans, isEnabled);
-
-    addRunCodeCommand(commands, tracker, trans, isEnabled);
-
-    addRunAllCodeCommand(commands, tracker, trans, isEnabled);
-
-    addMarkdownPreviewCommand(commands, tracker, trans);
-
-    // Add a command for creating a new text file.
-    addCreateNewCommand(commands, browserFactory, trans);
-
-    // Add a command for creating a new Markdown file.
-    addCreateNewMarkdownCommand(commands, browserFactory, trans);
-
-    addUndoCommand(commands, tracker, trans, isEnabled);
-
-    addRedoCommand(commands, tracker, trans, isEnabled);
-
-    addCutCommand(commands, tracker, trans, isEnabled);
-
-    addCopyCommand(commands, tracker, trans, isEnabled);
-
-    addPasteCommand(commands, tracker, trans, isEnabled);
-
-    addSelectAllCommand(commands, tracker, trans, isEnabled);
-  }
-
-  /**
-   * Add a command to change font size for File Editor
-   */
-  export function addChangeFontSizeCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string
+    defaultBrowser: IDefaultFileBrowser,
+    extensions: IEditorExtensionRegistry,
+    languages: IEditorLanguageRegistry,
+    consoleTracker: IConsoleTracker | null,
+    sessionDialogs: ISessionContextDialogs
   ): void {
+    /**
+     * Add a command to change font size for File Editor
+     */
     commands.addCommand(CommandIDs.changeFontSize, {
       execute: args => {
         const delta = Number(args['delta']);
@@ -283,16 +257,25 @@ export namespace Commands {
           style.getPropertyValue('--jp-code-font-size'),
           10
         );
-        const currentSize = config.fontSize || cssSize;
+        const currentSize =
+          (config['customStyles']['fontSize'] ??
+            extensions.baseConfiguration['customStyles']['fontSize']) ||
+          cssSize;
         config.fontSize = currentSize + delta;
         return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
+          .set(id, 'editorConfig', config)
           .catch((reason: Error) => {
             console.error(`Failed to set ${id}: ${reason.message}`);
           });
       },
       label: args => {
-        if ((args.delta ?? 0) > 0) {
+        const delta = Number(args['delta']);
+        if (Number.isNaN(delta)) {
+          console.error(
+            `${CommandIDs.changeFontSize}: delta arg must be a number`
+          );
+        }
+        if (delta > 0) {
           return args.isMenu
             ? trans.__('Increase Text Editor Font Size')
             : trans.__('Increase Font Size');
@@ -303,148 +286,189 @@ export namespace Commands {
         }
       }
     });
-  }
 
-  /**
-   * Add the Line Numbers command
-   */
-  export function addLineNumbersCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add the Line Numbers command
+     */
     commands.addCommand(CommandIDs.lineNumbers, {
-      execute: () => {
-        config.lineNumbers = !config.lineNumbers;
-        return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
-          .catch((reason: Error) => {
-            console.error(`Failed to set ${id}: ${reason.message}`);
-          });
+      execute: async () => {
+        config.lineNumbers = !(
+          config.lineNumbers ?? extensions.baseConfiguration.lineNumbers
+        );
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set ${id}: ${reason.message}`);
+        }
       },
       isEnabled,
-      isToggled: () => config.lineNumbers,
-      label: trans.__('Line Numbers')
+      isToggled: () =>
+        config.lineNumbers ?? extensions.baseConfiguration.lineNumbers,
+      label: trans.__('Show Line Numbers')
     });
-  }
 
-  /**
-   * Add the Word Wrap command
-   */
-  export function addWordWrapCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string,
-    isEnabled: () => boolean
-  ): void {
-    type wrappingMode = 'on' | 'off' | 'wordWrapColumn' | 'bounded';
+    commands.addCommand(CommandIDs.currentLineNumbers, {
+      label: trans.__('Show Line Numbers'),
+      caption: trans.__('Show the line numbers for the current file.'),
+      execute: () => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return;
+        }
+        const lineNumbers = !widget.content.editor.getOption('lineNumbers');
+        widget.content.editor.setOption('lineNumbers', lineNumbers);
+      },
+      isEnabled,
+      isToggled: () => {
+        const widget = tracker.currentWidget;
+        return (
+          (widget?.content.editor.getOption('lineNumbers') as
+            | boolean
+            | undefined) ?? false
+        );
+      }
+    });
 
+    /**
+     * Add the Word Wrap command
+     */
     commands.addCommand(CommandIDs.lineWrap, {
-      execute: args => {
-        config.lineWrap = (args['mode'] as wrappingMode) || 'off';
-        return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
-          .catch((reason: Error) => {
-            console.error(`Failed to set ${id}: ${reason.message}`);
-          });
+      execute: async args => {
+        config.lineWrap = (args['mode'] as boolean) ?? false;
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set ${id}: ${reason.message}`);
+        }
       },
       isEnabled,
       isToggled: args => {
-        const lineWrap = (args['mode'] as wrappingMode) || 'off';
-        return config.lineWrap === lineWrap;
+        const lineWrap = args['mode'] ?? false;
+        return (
+          lineWrap ===
+          (config.lineWrap ?? extensions.baseConfiguration.lineWrap)
+        );
       },
       label: trans.__('Word Wrap')
     });
-  }
 
-  /**
-   * Add command for changing tabs size or type in File Editor
-   */
-  export function addChangeTabsCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string
-  ): void {
+    commands.addCommand(CommandIDs.currentLineWrap, {
+      label: trans.__('Wrap Words'),
+      caption: trans.__('Wrap words for the current file.'),
+      execute: () => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return;
+        }
+        const oldValue = widget.content.editor.getOption('lineWrap');
+        widget.content.editor.setOption('lineWrap', !oldValue);
+      },
+      isEnabled,
+      isToggled: () => {
+        const widget = tracker.currentWidget;
+        return (
+          (widget?.content.editor.getOption('lineWrap') as boolean) ?? false
+        );
+      }
+    });
+
+    /**
+     * Add command for changing tabs size or type in File Editor
+     */
+
     commands.addCommand(CommandIDs.changeTabs, {
       label: args => {
-        if (args.insertSpaces) {
-          return trans._n(
-            'Spaces: %1',
-            'Spaces: %1',
-            (args.size as number) ?? 0
-          );
+        if (args.size) {
+          // Use a context to differentiate with string set as plural in 3.x
+          return trans._p('v4', 'Spaces: %1', args.size ?? '');
         } else {
           return trans.__('Indent with Tab');
         }
       },
-      execute: args => {
-        config.tabSize = (args['size'] as number) || 4;
-        config.insertSpaces = !!args['insertSpaces'];
-        return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
-          .catch((reason: Error) => {
-            console.error(`Failed to set ${id}: ${reason.message}`);
-          });
+      execute: async args => {
+        config.indentUnit =
+          args['size'] !== undefined
+            ? ((args['size'] as string) ?? '4').toString()
+            : 'Tab';
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set ${id}: ${reason.message}`);
+        }
       },
       isToggled: args => {
-        const insertSpaces = !!args['insertSpaces'];
-        const size = (args['size'] as number) || 4;
-        return config.insertSpaces === insertSpaces && config.tabSize === size;
+        const currentIndentUnit =
+          config.indentUnit ?? extensions.baseConfiguration.indentUnit;
+        return args['size']
+          ? args['size'] === currentIndentUnit
+          : 'Tab' == currentIndentUnit;
       }
     });
-  }
 
-  /**
-   * Add the Match Brackets command
-   */
-  export function addMatchBracketsCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add the Match Brackets command
+     */
     commands.addCommand(CommandIDs.matchBrackets, {
-      execute: () => {
-        config.matchBrackets = !config.matchBrackets;
-        return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
-          .catch((reason: Error) => {
-            console.error(`Failed to set ${id}: ${reason.message}`);
-          });
+      execute: async () => {
+        config.matchBrackets = !(
+          config.matchBrackets ?? extensions.baseConfiguration.matchBrackets
+        );
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set ${id}: ${reason.message}`);
+        }
       },
       label: trans.__('Match Brackets'),
       isEnabled,
-      isToggled: () => config.matchBrackets
+      isToggled: () =>
+        config.matchBrackets ?? extensions.baseConfiguration.matchBrackets
     });
-  }
 
-  /**
-   * Add the Auto Close Brackets for Text Editor command
-   */
-  export function addAutoClosingBracketsCommand(
-    commands: CommandRegistry,
-    settingRegistry: ISettingRegistry,
-    trans: TranslationBundle,
-    id: string
-  ): void {
+    commands.addCommand(CommandIDs.currentMatchBrackets, {
+      label: trans.__('Match Brackets'),
+      caption: trans.__('Change match brackets for the current file.'),
+      execute: () => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return;
+        }
+        const matchBrackets = !widget.content.editor.getOption('matchBrackets');
+        widget.content.editor.setOption('matchBrackets', matchBrackets);
+      },
+      isEnabled,
+      isToggled: () => {
+        const widget = tracker.currentWidget;
+        return (
+          (widget?.content.editor.getOption('matchBrackets') as
+            | boolean
+            | undefined) ?? false
+        );
+      }
+    });
+
+    /**
+     * Add the Auto Close Brackets for Text Editor command
+     */
     commands.addCommand(CommandIDs.autoClosingBrackets, {
-      execute: args => {
+      execute: async args => {
         config.autoClosingBrackets = !!(
-          args['force'] ?? !config.autoClosingBrackets
+          args['force'] ??
+          !(
+            config.autoClosingBrackets ??
+            extensions.baseConfiguration.autoClosingBrackets
+          )
         );
-        return settingRegistry
-          .set(id, 'editorConfig', (config as unknown) as JSONObject)
-          .catch((reason: Error) => {
-            console.error(`Failed to set ${id}: ${reason.message}`);
-          });
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set ${id}: ${reason.message}`);
+        }
       },
-      label: trans.__('Auto Close Brackets for Text Editor'),
-      isToggled: () => config.autoClosingBrackets
+      label: trans.__('Auto Close Brackets in Text Editor'),
+      isToggled: () =>
+        config.autoClosingBrackets ??
+        extensions.baseConfiguration.autoClosingBrackets
     });
 
     commands.addCommand(CommandIDs.autoClosingBracketsUniversal, {
@@ -475,17 +499,102 @@ export namespace Commands {
         commands.isToggled(autoClosingBracketsNotebook) ||
         commands.isToggled(autoClosingBracketsConsole)
     });
-  }
 
-  /**
-   * Add the replace selection for text editor command
-   */
-  export function addReplaceSelectionCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Create a menu for the editor.
+     */
+    commands.addCommand(CommandIDs.changeTheme, {
+      label: args =>
+        ((args.displayName ?? args.theme) as string) ??
+        config.theme ??
+        extensions.baseConfiguration.theme ??
+        trans.__('Editor Theme'),
+      execute: async args => {
+        config.theme = (args['theme'] as string) ?? config.theme;
+
+        try {
+          return await settingRegistry.set(id, 'editorConfig', config);
+        } catch (reason) {
+          console.error(`Failed to set theme - ${reason.message}`);
+        }
+      },
+      isToggled: args =>
+        args['theme'] === (config.theme ?? extensions.baseConfiguration.theme)
+    });
+
+    commands.addCommand(CommandIDs.find, {
+      label: trans.__('Find…'),
+      execute: () => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return;
+        }
+        const editor = widget.content.editor as CodeMirrorEditor;
+        editor.execCommand(findNext);
+      },
+      isEnabled
+    });
+
+    commands.addCommand(CommandIDs.goToLine, {
+      label: trans.__('Go to Line…'),
+      execute: args => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return;
+        }
+        const editor = widget.content.editor as CodeMirrorEditor;
+
+        const line = args['line'] as number | undefined;
+        const column = args['column'] as number | undefined;
+        if (line !== undefined || column !== undefined) {
+          editor.setCursorPosition({
+            line: (line ?? 1) - 1,
+            column: (column ?? 1) - 1
+          });
+        } else {
+          editor.execCommand(gotoLine);
+        }
+      },
+      isEnabled
+    });
+
+    commands.addCommand(CommandIDs.changeLanguage, {
+      label: args =>
+        ((args['displayName'] ?? args['name']) as string) ??
+        trans.__('Change editor language.'),
+      execute: args => {
+        const name = args['name'] as string;
+        const widget = tracker.currentWidget;
+        if (name && widget) {
+          const spec = languages.findByName(name);
+          if (spec) {
+            if (Array.isArray(spec.mime)) {
+              widget.content.model.mimeType =
+                (spec.mime[0] as string) ??
+                IEditorMimeTypeService.defaultMimeType;
+            } else {
+              widget.content.model.mimeType = spec.mime as string;
+            }
+          }
+        }
+      },
+      isEnabled,
+      isToggled: args => {
+        const widget = tracker.currentWidget;
+        if (!widget) {
+          return false;
+        }
+        const mime = widget.content.model.mimeType;
+        const spec = languages.findByMIME(mime);
+        const name = spec && spec.name;
+        return args['name'] === name;
+      }
+    });
+
+    /**
+     * Add the replace selection for text editor command
+     */
+
     commands.addCommand(CommandIDs.replaceSelection, {
       execute: args => {
         const text: string = (args['text'] as string) || '';
@@ -498,17 +607,10 @@ export namespace Commands {
       isEnabled,
       label: trans.__('Replace Selection in Editor')
     });
-  }
 
-  /**
-   * Add the Create Console for Editor command
-   */
-  export function addCreateConsoleCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add the Create Console for Editor command
+     */
     commands.addCommand(CommandIDs.createConsole, {
       execute: args => {
         const widget = tracker.currentWidget;
@@ -517,23 +619,38 @@ export namespace Commands {
           return;
         }
 
-        return getCreateConsoleFunction(commands)(widget, args);
+        return getCreateConsoleFunction(commands, languages)(widget, args);
       },
       isEnabled,
       icon: consoleIcon,
       label: trans.__('Create Console for Editor')
     });
-  }
 
-  /**
-   * Add the Run Code command
-   */
-  export function addRunCodeCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Restart the Console Kernel linked to the current Editor
+     */
+    commands.addCommand(CommandIDs.restartConsole, {
+      execute: async () => {
+        const current = tracker.currentWidget?.content;
+
+        if (!current || consoleTracker === null) {
+          return;
+        }
+
+        const widget = consoleTracker.find(
+          widget => widget.sessionContext.session?.path === current.context.path
+        );
+        if (widget) {
+          return sessionDialogs.restart(widget.sessionContext);
+        }
+      },
+      label: trans.__('Restart Kernel'),
+      isEnabled: () => consoleTracker !== null && isEnabled()
+    });
+
+    /**
+     * Add the Run Code command
+     */
     commands.addCommand(CommandIDs.runCode, {
       execute: () => {
         // Run the appropriate code, taking into account a ```fenced``` code block.
@@ -556,9 +673,9 @@ export namespace Commands {
           const start = editor.getOffsetAt(selection.start);
           const end = editor.getOffsetAt(selection.end);
 
-          code = editor.model.value.text.substring(start, end);
+          code = editor.model.sharedModel.getSource().substring(start, end);
         } else if (MarkdownCodeBlocks.isMarkdown(extension)) {
-          const { text } = editor.model.value;
+          const text = editor.model.sharedModel.getSource();
           const blocks = MarkdownCodeBlocks.findMarkdownCodeBlocks(text);
 
           for (const block of blocks) {
@@ -575,8 +692,8 @@ export namespace Commands {
           code = editor.getLine(selection.start.line);
           const cursor = editor.getCursorPosition();
           if (cursor.line + 1 === editor.lineCount) {
-            const text = editor.model.value.text;
-            editor.model.value.text = text + '\n';
+            const text = editor.model.sharedModel.getSource();
+            editor.model.sharedModel.setSource(text + '\n');
           }
           editor.setCursorPosition({
             line: cursor.line + 1,
@@ -592,19 +709,12 @@ export namespace Commands {
         }
       },
       isEnabled,
-      label: trans.__('Run Code')
+      label: trans.__('Run Selected Code')
     });
-  }
 
-  /**
-   * Add the Run All Code command
-   */
-  export function addRunAllCodeCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add the Run All Code command
+     */
     commands.addCommand(CommandIDs.runAllCode, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -615,7 +725,7 @@ export namespace Commands {
 
         let code = '';
         const editor = widget.editor;
-        const text = editor.model.value.text;
+        const text = editor.model.sharedModel.getSource();
         const path = widget.context.path;
         const extension = PathExt.extname(path);
 
@@ -639,16 +749,10 @@ export namespace Commands {
       isEnabled,
       label: trans.__('Run All Code')
     });
-  }
 
-  /**
-   * Add markdown preview command
-   */
-  export function addMarkdownPreviewCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle
-  ): void {
+    /**
+     * Add markdown preview command
+     */
     commands.addCommand(CommandIDs.markdownPreview, {
       execute: () => {
         const widget = tracker.currentWidget;
@@ -672,17 +776,56 @@ export namespace Commands {
       icon: markdownIcon,
       label: trans.__('Show Markdown Preview')
     });
-  }
 
-  /**
-   * Add undo command
-   */
-  export function addUndoCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add the New File command
+     *
+     * Defaults to Text/.txt if file type data is not specified
+     */
+    commands.addCommand(CommandIDs.createNew, {
+      label: args => {
+        if (args.isPalette) {
+          return (args.paletteLabel as string) ?? trans.__('New Text File');
+        }
+        return (args.launcherLabel as string) ?? trans.__('Text File');
+      },
+      caption: args =>
+        (args.caption as string) ?? trans.__('Create a new text file'),
+      icon: args =>
+        args.isPalette
+          ? undefined
+          : LabIcon.resolve({
+              icon: (args.iconName as string) ?? textEditorIcon
+            }),
+      execute: args => {
+        const cwd = args.cwd || defaultBrowser.model.path;
+        return createNew(
+          commands,
+          cwd as string,
+          (args.fileExt as string) ?? 'txt'
+        );
+      }
+    });
+
+    /**
+     * Add the New Markdown File command
+     */
+    commands.addCommand(CommandIDs.createNewMarkdown, {
+      label: args =>
+        args['isPalette']
+          ? trans.__('New Markdown File')
+          : trans.__('Markdown File'),
+      caption: trans.__('Create a new markdown file'),
+      icon: args => (args['isPalette'] ? undefined : markdownIcon),
+      execute: args => {
+        const cwd = args['cwd'] || defaultBrowser.model.path;
+        return createNew(commands, cwd as string, 'md');
+      }
+    });
+
+    /**
+     * Add undo command
+     */
     commands.addCommand(CommandIDs.undo, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -710,17 +853,10 @@ export namespace Commands {
       icon: undoIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Undo')
     });
-  }
 
-  /**
-   * Add redo command
-   */
-  export function addRedoCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add redo command
+     */
     commands.addCommand(CommandIDs.redo, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -748,17 +884,10 @@ export namespace Commands {
       icon: redoIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Redo')
     });
-  }
 
-  /**
-   * Add cut command
-   */
-  export function addCutCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add cut command
+     */
     commands.addCommand(CommandIDs.cut, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -790,17 +919,10 @@ export namespace Commands {
       icon: cutIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Cut')
     });
-  }
 
-  /**
-   * Add copy command
-   */
-  export function addCopyCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add copy command
+     */
     commands.addCommand(CommandIDs.copy, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -831,17 +953,10 @@ export namespace Commands {
       icon: copyIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Copy')
     });
-  }
 
-  /**
-   * Add paste command
-   */
-  export function addPasteCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add paste command
+     */
     commands.addCommand(CommandIDs.paste, {
       execute: async () => {
         const widget = tracker.currentWidget?.content;
@@ -865,17 +980,10 @@ export namespace Commands {
       icon: pasteIcon.bindprops({ stylesheet: 'menuItem' }),
       label: trans.__('Paste')
     });
-  }
 
-  /**
-   * Add select all command
-   */
-  export function addSelectAllCommand(
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
-    isEnabled: () => boolean
-  ): void {
+    /**
+     * Add select all command
+     */
     commands.addCommand(CommandIDs.selectAll, {
       execute: () => {
         const widget = tracker.currentWidget?.content;
@@ -885,13 +993,50 @@ export namespace Commands {
         }
 
         const editor = widget.editor as CodeMirrorEditor;
-        editor.execCommand('selectAll');
+        editor.execCommand(selectAll);
       },
       isEnabled: () => Boolean(isEnabled() && tracker.currentWidget?.content),
       label: trans.__('Select All')
     });
   }
 
+  export function addCompleterCommands(
+    commands: CommandRegistry,
+    editorTracker: IEditorTracker,
+    manager: ICompletionProviderManager,
+    translator: ITranslator | null
+  ): void {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+
+    commands.addCommand(CommandIDs.invokeCompleter, {
+      label: trans.__('Display the completion helper.'),
+      execute: () => {
+        const id =
+          editorTracker.currentWidget && editorTracker.currentWidget.id;
+        if (id) {
+          return manager.invoke(id);
+        }
+      }
+    });
+
+    commands.addCommand(CommandIDs.selectCompleter, {
+      label: trans.__('Select the completion suggestion.'),
+      execute: () => {
+        const id =
+          editorTracker.currentWidget && editorTracker.currentWidget.id;
+        if (id) {
+          return manager.select(id);
+        }
+      }
+    });
+
+    commands.addKeyBinding({
+      command: CommandIDs.selectCompleter,
+      keys: ['Enter'],
+      selector: '.jp-FileEditor .jp-mod-completer-active'
+    });
+  }
+
   /**
    * Helper function to check if there is a text selection in the editor
    */
@@ -910,7 +1055,7 @@ export namespace Commands {
     const selectionObj = editor.getSelection();
     const start = editor.getOffsetAt(selectionObj.start);
     const end = editor.getOffsetAt(selectionObj.end);
-    const text = editor.model.value.text.substring(start, end);
+    const text = editor.model.sharedModel.getSource().substring(start, end);
 
     return text;
   }
@@ -929,73 +1074,15 @@ export namespace Commands {
       ext
     });
     if (model != undefined) {
-      const widget = ((await commands.execute('docmanager:open', {
+      const widget = (await commands.execute('docmanager:open', {
         path: model.path,
         factory: FACTORY
-      })) as unknown) as IDocumentWidget;
+      })) as unknown as IDocumentWidget;
       widget.isUntitled = true;
       return widget;
     }
   }
 
-  /**
-   * Add the New File command
-   *
-   * Defaults to Text/.txt if file type data is not specified
-   */
-  export function addCreateNewCommand(
-    commands: CommandRegistry,
-    browserFactory: IFileBrowserFactory,
-    trans: TranslationBundle
-  ): void {
-    commands.addCommand(CommandIDs.createNew, {
-      label: args => {
-        if (args.isPalette) {
-          return (args.paletteLabel as string) ?? trans.__('New Text File');
-        }
-        return (args.launcherLabel as string) ?? trans.__('Text File');
-      },
-      caption: args =>
-        (args.caption as string) ?? trans.__('Create a new text file'),
-      icon: args =>
-        args.isPalette
-          ? undefined
-          : LabIcon.resolve({
-              icon: (args.iconName as string) ?? textEditorIcon
-            }),
-      execute: args => {
-        const cwd = args.cwd || browserFactory.defaultBrowser.model.path;
-        return createNew(
-          commands,
-          cwd as string,
-          (args.fileExt as string) ?? 'txt'
-        );
-      }
-    });
-  }
-
-  /**
-   * Add the New Markdown File command
-   */
-  export function addCreateNewMarkdownCommand(
-    commands: CommandRegistry,
-    browserFactory: IFileBrowserFactory,
-    trans: TranslationBundle
-  ): void {
-    commands.addCommand(CommandIDs.createNewMarkdown, {
-      label: args =>
-        args['isPalette']
-          ? trans.__('New Markdown File')
-          : trans.__('Markdown File'),
-      caption: trans.__('Create a new markdown file'),
-      icon: args => (args['isPalette'] ? undefined : markdownIcon),
-      execute: args => {
-        const cwd = args['cwd'] || browserFactory.defaultBrowser.model.path;
-        return createNew(commands, cwd as string, 'md');
-      }
-    });
-  }
-
   /**
    * Wrapper function for adding the default launcher items for File Editor
    */
@@ -1079,7 +1166,6 @@ export namespace Commands {
   ): void {
     const paletteCategory = trans.__('Text Editor');
     const args: JSONObject = {
-      insertSpaces: false,
       size: 4
     };
     const command = CommandIDs.changeTabs;
@@ -1087,7 +1173,6 @@ export namespace Commands {
 
     for (const size of [1, 2, 4, 8]) {
       const args: JSONObject = {
-        insertSpaces: true,
         size
       };
       palette.addItem({ command, args, category: paletteCategory });
@@ -1164,31 +1249,43 @@ export namespace Commands {
    */
   export function addMenuItems(
     menu: IMainMenu,
-    commands: CommandRegistry,
     tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    trans: TranslationBundle,
     consoleTracker: IConsoleTracker | null,
-    sessionDialogs: ISessionContextDialogs | null
+    isEnabled: () => boolean
   ): void {
     // Add undo/redo hooks to the edit menu.
-    addUndoRedoToEditMenu(menu, tracker);
+    menu.editMenu.undoers.redo.add({
+      id: CommandIDs.redo,
+      isEnabled
+    });
+    menu.editMenu.undoers.undo.add({
+      id: CommandIDs.undo,
+      isEnabled
+    });
 
     // Add editor view options.
-    addEditorViewerToViewMenu(menu, tracker);
+    menu.viewMenu.editorViewers.toggleLineNumbers.add({
+      id: CommandIDs.currentLineNumbers,
+      isEnabled
+    });
+    menu.viewMenu.editorViewers.toggleMatchBrackets.add({
+      id: CommandIDs.currentMatchBrackets,
+      isEnabled
+    });
+    menu.viewMenu.editorViewers.toggleWordWrap.add({
+      id: CommandIDs.currentLineWrap,
+      isEnabled
+    });
 
     // Add a console creator the the file menu.
-    addConsoleCreatorToFileMenu(menu, commands, tracker, trans);
+    menu.fileMenu.consoleCreators.add({
+      id: CommandIDs.createConsole,
+      isEnabled
+    });
 
     // Add a code runner to the run menu.
     if (consoleTracker) {
-      addCodeRunnersToRunMenu(
-        menu,
-        commands,
-        tracker,
-        consoleTracker,
-        trans,
-        sessionDialogs
-      );
+      addCodeRunnersToRunMenu(menu, consoleTracker, isEnabled);
     }
   }
 
@@ -1209,111 +1306,87 @@ export namespace Commands {
   }
 
   /**
-   * Add File Editor undo and redo widgets to the Edit menu
-   */
-  export function addUndoRedoToEditMenu(
-    menu: IMainMenu,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>
-  ): void {
-    menu.editMenu.undoers.add({
-      tracker,
-      undo: widget => {
-        widget.content.editor.undo();
-      },
-      redo: widget => {
-        widget.content.editor.redo();
-      }
-    } as IEditMenu.IUndoer<IDocumentWidget<FileEditor>>);
-  }
-
-  /**
-   * Add a File Editor editor viewer to the View Menu
+   * Add a File Editor code runner to the Run menu
    */
-  export function addEditorViewerToViewMenu(
+  export function addCodeRunnersToRunMenu(
     menu: IMainMenu,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>
+    consoleTracker: IConsoleTracker,
+    isEnabled: () => boolean
   ): void {
-    menu.viewMenu.editorViewers.add({
-      tracker,
-      toggleLineNumbers: widget => {
-        const lineNumbers = !widget.content.editor.getOption('lineNumbers');
-        widget.content.editor.setOption('lineNumbers', lineNumbers);
-      },
-      toggleWordWrap: widget => {
-        const oldValue = widget.content.editor.getOption('lineWrap');
-        const newValue = oldValue === 'off' ? 'on' : 'off';
-        widget.content.editor.setOption('lineWrap', newValue);
-      },
-      toggleMatchBrackets: widget => {
-        const matchBrackets = !widget.content.editor.getOption('matchBrackets');
-        widget.content.editor.setOption('matchBrackets', matchBrackets);
-      },
-      lineNumbersToggled: widget =>
-        widget.content.editor.getOption('lineNumbers'),
-      wordWrapToggled: widget =>
-        widget.content.editor.getOption('lineWrap') !== 'off',
-      matchBracketsToggled: widget =>
-        widget.content.editor.getOption('matchBrackets')
-    } as IViewMenu.IEditorViewer<IDocumentWidget<FileEditor>>);
+    const isEnabled_ = (current: IDocumentWidget<FileEditor>) =>
+      isEnabled() &&
+      current.context &&
+      !!consoleTracker.find(
+        widget => widget.sessionContext.session?.path === current.context.path
+      );
+    menu.runMenu.codeRunners.restart.add({
+      id: CommandIDs.restartConsole,
+      isEnabled: isEnabled_
+    });
+    menu.runMenu.codeRunners.run.add({
+      id: CommandIDs.runCode,
+      isEnabled: isEnabled_
+    });
+    menu.runMenu.codeRunners.runAll.add({
+      id: CommandIDs.runAllCode,
+      isEnabled: isEnabled_
+    });
   }
 
-  /**
-   * Add a File Editor console creator to the File menu
-   */
-  export function addConsoleCreatorToFileMenu(
-    menu: IMainMenu,
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
+  export function addOpenCodeViewerCommand(
+    app: JupyterFrontEnd,
+    editorServices: IEditorServices,
+    tracker: WidgetTracker<MainAreaWidget<CodeViewerWidget>>,
     trans: TranslationBundle
   ): void {
-    const createConsole: (
-      widget: IDocumentWidget<FileEditor>
-    ) => Promise<void> = getCreateConsoleFunction(commands);
-    menu.fileMenu.consoleCreators.add({
-      tracker,
-      createConsoleLabel: (n: number) => trans.__('Create Console for Editor'),
-      createConsole
-    } as IFileMenu.IConsoleCreator<IDocumentWidget<FileEditor>>);
-  }
+    const openCodeViewer = async (args: {
+      content: string;
+      label?: string;
+      mimeType?: string;
+      extension?: string;
+      widgetId?: string;
+    }): Promise<CodeViewerWidget> => {
+      const func = editorServices.factoryService.newDocumentEditor;
+      const factory: CodeEditor.Factory = options => {
+        return func(options);
+      };
 
-  /**
-   * Add a File Editor code runner to the Run menu
-   */
-  export function addCodeRunnersToRunMenu(
-    menu: IMainMenu,
-    commands: CommandRegistry,
-    tracker: WidgetTracker<IDocumentWidget<FileEditor>>,
-    consoleTracker: IConsoleTracker,
-    trans: TranslationBundle,
-    sessionDialogs: ISessionContextDialogs | null
-  ): void {
-    menu.runMenu.codeRunners.add({
-      tracker,
-      runLabel: (n: number) => trans.__('Run Code'),
-      runAllLabel: (n: number) => trans.__('Run All Code'),
-      restartAndRunAllLabel: (n: number) =>
-        trans.__('Restart Kernel and Run All Code'),
-      isEnabled: current =>
-        !!consoleTracker.find(
-          widget => widget.sessionContext.session?.path === current.context.path
-        ),
-      run: () => commands.execute(CommandIDs.runCode),
-      runAll: () => commands.execute(CommandIDs.runAllCode),
-      restartAndRunAll: current => {
-        const widget = consoleTracker.find(
-          widget => widget.sessionContext.session?.path === current.context.path
+      // Derive mimetype from extension
+      let mimetype = args.mimeType;
+      if (!mimetype && args.extension) {
+        mimetype = editorServices.mimeTypeService.getMimeTypeByFilePath(
+          `temp.${args.extension.replace(/\\.$/, '')}`
         );
-        if (widget) {
-          return (sessionDialogs || sessionContextDialogs)
-            .restart(widget.sessionContext)
-            .then(restarted => {
-              if (restarted) {
-                void commands.execute(CommandIDs.runAllCode);
-              }
-              return restarted;
-            });
-        }
       }
-    } as IRunMenu.ICodeRunner<IDocumentWidget<FileEditor>>);
+
+      const widget = CodeViewerWidget.createCodeViewer({
+        factory,
+        content: args.content,
+        mimeType: mimetype
+      });
+      widget.title.label = args.label || trans.__('Code Viewer');
+      widget.title.caption = widget.title.label;
+
+      // Get the fileType based on the mimetype to determine the icon
+      const fileType = find(app.docRegistry.fileTypes(), fileType =>
+        mimetype ? fileType.mimeTypes.includes(mimetype) : false
+      );
+      widget.title.icon = fileType?.icon ?? textEditorIcon;
+
+      if (args.widgetId) {
+        widget.id = args.widgetId;
+      }
+      const main = new MainAreaWidget({ content: widget });
+      await tracker.add(main);
+      app.shell.add(main, 'main');
+      return widget;
+    };
+
+    app.commands.addCommand(CommandIDs.openCodeViewer, {
+      label: trans.__('Open Code Viewer'),
+      execute: (args: any) => {
+        return openCodeViewer(args);
+      }
+    });
   }
 }
diff --git a/packages/fileeditor-extension/src/index.ts b/packages/fileeditor-extension/src/index.ts
index d0f00356ed1e..c6130f066d99 100644
--- a/packages/fileeditor-extension/src/index.ts
+++ b/packages/fileeditor-extension/src/index.ts
@@ -13,29 +13,61 @@ import {
 import {
   createToolbarFactory,
   ICommandPalette,
+  ISanitizer,
   ISessionContextDialogs,
   IToolbarWidgetRegistry,
+  MainAreaWidget,
+  Sanitizer,
+  SessionContextDialogs,
   WidgetTracker
 } from '@jupyterlab/apputils';
-import { CodeEditor, IEditorServices } from '@jupyterlab/codeeditor';
+import {
+  CodeViewerWidget,
+  IEditorServices,
+  IPositionModel
+} from '@jupyterlab/codeeditor';
+import {
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry,
+  IEditorThemeRegistry
+} from '@jupyterlab/codemirror';
+import { ICompletionProviderManager } from '@jupyterlab/completer';
 import { IConsoleTracker } from '@jupyterlab/console';
 import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
-import { IFileBrowserFactory } from '@jupyterlab/filebrowser';
+import { ISearchProviderRegistry } from '@jupyterlab/documentsearch';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
 import {
   FileEditor,
+  FileEditorAdapter,
   FileEditorFactory,
+  FileEditorSearchProvider,
   IEditorTracker,
+  LaTeXTableOfContentsFactory,
+  MarkdownTableOfContentsFactory,
+  PythonTableOfContentsFactory,
   TabSpaceStatus
 } from '@jupyterlab/fileeditor';
 import { ILauncher } from '@jupyterlab/launcher';
+import {
+  ILSPCodeExtractorsManager,
+  ILSPDocumentConnectionManager,
+  ILSPFeatureManager
+} from '@jupyterlab/lsp';
 import { IMainMenu } from '@jupyterlab/mainmenu';
 import { IObservableList } from '@jupyterlab/observables';
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
+import { Session } from '@jupyterlab/services';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStatusBar } from '@jupyterlab/statusbar';
-import { ITranslator } from '@jupyterlab/translation';
+import { ITableOfContentsRegistry } from '@jupyterlab/toc';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { IFormRendererRegistry, MenuSvg } from '@jupyterlab/ui-components';
+import { find } from '@lumino/algorithm';
 import { JSONObject } from '@lumino/coreutils';
-import { Menu } from '@lumino/widgets';
-import { Commands, FACTORY, IFileTypeData } from './commands';
+import { Widget } from '@lumino/widgets';
+
+import { CommandIDs, Commands, FACTORY, IFileTypeData } from './commands';
+import { editorSyntaxStatus } from './syntaxstatus';
 
 export { Commands } from './commands';
 
@@ -45,11 +77,14 @@ export { Commands } from './commands';
 const plugin: JupyterFrontEndPlugin<IEditorTracker> = {
   activate,
   id: '@jupyterlab/fileeditor-extension:plugin',
+  description: 'Provides the file editor widget tracker.',
   requires: [
     IEditorServices,
-    IFileBrowserFactory,
-    ISettingRegistry,
-    ITranslator
+    IEditorExtensionRegistry,
+    IEditorLanguageRegistry,
+    IEditorThemeRegistry,
+    IDefaultFileBrowser,
+    ISettingRegistry
   ],
   optional: [
     IConsoleTracker,
@@ -58,7 +93,10 @@ const plugin: JupyterFrontEndPlugin<IEditorTracker> = {
     IMainMenu,
     ILayoutRestorer,
     ISessionContextDialogs,
-    IToolbarWidgetRegistry
+    ITableOfContentsRegistry,
+    IToolbarWidgetRegistry,
+    ITranslator,
+    IFormRendererRegistry
   ],
   provides: IEditorTracker,
   autoStart: true
@@ -70,12 +108,19 @@ const plugin: JupyterFrontEndPlugin<IEditorTracker> = {
  */
 export const tabSpaceStatus: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/fileeditor-extension:tab-space-status',
+  description: 'Adds a file editor indentation status widget.',
   autoStart: true,
-  requires: [IEditorTracker, ISettingRegistry, ITranslator],
+  requires: [
+    IEditorTracker,
+    IEditorExtensionRegistry,
+    ISettingRegistry,
+    ITranslator
+  ],
   optional: [IStatusBar],
   activate: (
     app: JupyterFrontEnd,
     editorTracker: IEditorTracker,
+    extensions: IEditorExtensionRegistry,
     settingRegistry: ISettingRegistry,
     translator: ITranslator,
     statusBar: IStatusBar | null
@@ -86,20 +131,18 @@ export const tabSpaceStatus: JupyterFrontEndPlugin<void> = {
       return;
     }
     // Create a menu for switching tabs vs spaces.
-    const menu = new Menu({ commands: app.commands });
+    const menu = new MenuSvg({ commands: app.commands });
     const command = 'fileeditor:change-tabs';
     const { shell } = app;
     const args: JSONObject = {
-      insertSpaces: false,
-      size: 4,
       name: trans.__('Indent with Tab')
     };
     menu.addItem({ command, args });
-    for (const size of [1, 2, 4, 8]) {
+    for (const size of ['1', '2', '4', '8']) {
       const args: JSONObject = {
-        insertSpaces: true,
         size,
-        name: trans._n('Spaces: %1', 'Spaces: %1', size)
+        // Use a context to differentiate with string set as plural in 3.x
+        name: trans._p('v4', 'Spaces: %1', size)
       };
       menu.addItem({ command, args });
     }
@@ -108,18 +151,19 @@ export const tabSpaceStatus: JupyterFrontEndPlugin<void> = {
     const item = new TabSpaceStatus({ menu, translator });
 
     // Keep a reference to the code editor config from the settings system.
-    const updateSettings = (settings: ISettingRegistry.ISettings): void => {
-      item.model!.config = {
-        ...CodeEditor.defaultConfig,
-        ...(settings.get('editorConfig').composite as JSONObject)
-      };
+    const updateIndentUnit = (settings: ISettingRegistry.ISettings): void => {
+      item.model!.indentUnit =
+        (settings.get('editorConfig').composite as any)?.indentUnit ??
+        extensions.baseConfiguration.indentUnit ??
+        null;
     };
+
     void Promise.all([
       settingRegistry.load('@jupyterlab/fileeditor-extension:plugin'),
       app.restored
     ]).then(([settings]) => {
-      updateSettings(settings);
-      settings.changed.connect(updateSettings);
+      updateIndentUnit(settings);
+      settings.changed.connect(updateIndentUnit);
     });
 
     // Add the status item.
@@ -139,10 +183,77 @@ export const tabSpaceStatus: JupyterFrontEndPlugin<void> = {
   }
 };
 
+/**
+ * Cursor position.
+ */
+const lineColStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/fileeditor-extension:cursor-position',
+  description: 'Adds a file editor cursor position status widget.',
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: IEditorTracker,
+    positionModel: IPositionModel
+  ) => {
+    positionModel.addEditorProvider((widget: Widget | null) =>
+      Promise.resolve(
+        widget && tracker.has(widget)
+          ? (widget as IDocumentWidget<FileEditor>).content.editor
+          : null
+      )
+    );
+  },
+  requires: [IEditorTracker, IPositionModel],
+  autoStart: true
+};
+
+const completerPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/fileeditor-extension:completer',
+  description: 'Adds the completer capability to the file editor.',
+  requires: [IEditorTracker],
+  optional: [ICompletionProviderManager, ITranslator, ISanitizer],
+  activate: activateFileEditorCompleterService,
+  autoStart: true
+};
+
+/**
+ * A plugin to search file editors
+ */
+const searchProvider: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/fileeditor-extension:search',
+  description: 'Adds search capability to the file editor.',
+  requires: [ISearchProviderRegistry],
+  autoStart: true,
+  activate: (app: JupyterFrontEnd, registry: ISearchProviderRegistry) => {
+    registry.add('jp-fileeditorSearchProvider', FileEditorSearchProvider);
+  }
+};
+
+const languageServerPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/fileeditor-extension:language-server',
+  description: 'Adds Language Server capability to the file editor.',
+  requires: [
+    IEditorTracker,
+    ILSPDocumentConnectionManager,
+    ILSPFeatureManager,
+    ILSPCodeExtractorsManager
+  ],
+
+  activate: activateFileEditorLanguageServer,
+  autoStart: true
+};
+
 /**
  * Export the plugins as default.
  */
-const plugins: JupyterFrontEndPlugin<any>[] = [plugin, tabSpaceStatus];
+const plugins: JupyterFrontEndPlugin<any>[] = [
+  plugin,
+  lineColStatus,
+  completerPlugin,
+  languageServerPlugin,
+  searchProvider,
+  editorSyntaxStatus,
+  tabSpaceStatus
+];
 export default plugins;
 
 /**
@@ -151,18 +262,26 @@ export default plugins;
 function activate(
   app: JupyterFrontEnd,
   editorServices: IEditorServices,
-  browserFactory: IFileBrowserFactory,
+  extensions: IEditorExtensionRegistry,
+  languages: IEditorLanguageRegistry,
+  themes: IEditorThemeRegistry,
+  fileBrowser: IDefaultFileBrowser,
   settingRegistry: ISettingRegistry,
-  translator: ITranslator,
   consoleTracker: IConsoleTracker | null,
   palette: ICommandPalette | null,
   launcher: ILauncher | null,
   menu: IMainMenu | null,
   restorer: ILayoutRestorer | null,
-  sessionDialogs: ISessionContextDialogs | null,
-  toolbarRegistry: IToolbarWidgetRegistry | null
+  sessionDialogs_: ISessionContextDialogs | null,
+  tocRegistry: ITableOfContentsRegistry | null,
+  toolbarRegistry: IToolbarWidgetRegistry | null,
+  translator_: ITranslator | null,
+  formRegistry: IFormRendererRegistry | null
 ): IEditorTracker {
   const id = plugin.id;
+  const translator = translator_ ?? nullTranslator;
+  const sessionDialogs =
+    sessionDialogs_ ?? new SessionContextDialogs({ translator });
   const trans = translator.load('jupyterlab');
   const namespace = 'editor';
   let toolbarFactory:
@@ -185,6 +304,7 @@ function activate(
     editorServices,
     factoryOptions: {
       name: FACTORY,
+      label: trans.__('Editor'),
       fileTypes: ['markdown', '*'], // Explicitly add the markdown fileType so
       defaultFor: ['markdown', '*'], // it outranks the defaultRendered viewer.
       toolbarFactory,
@@ -267,6 +387,60 @@ function activate(
   // Fetch the initial state of the settings.
   Promise.all([settingRegistry.load(id), restored])
     .then(([settings]) => {
+      // As the menu are defined in the settings we must ensure they are loaded
+      // before updating dynamically the submenu
+      if (menu) {
+        const languageMenu = menu.viewMenu.items.find(
+          item =>
+            item.type === 'submenu' &&
+            item.submenu?.id === 'jp-mainmenu-view-codemirror-language'
+        )?.submenu;
+
+        if (languageMenu) {
+          languages
+            .getLanguages()
+            .sort((a, b) => {
+              const aName = a.name;
+              const bName = b.name;
+              return aName.localeCompare(bName);
+            })
+            .forEach(spec => {
+              // Avoid mode name with a curse word.
+              if (spec.name.toLowerCase().indexOf('brainf') === 0) {
+                return;
+              }
+              languageMenu.addItem({
+                command: CommandIDs.changeLanguage,
+                args: { ...spec } as any // TODO: Casting to `any` until lumino typings are fixed
+              });
+            });
+        }
+        const themeMenu = menu.settingsMenu.items.find(
+          item =>
+            item.type === 'submenu' &&
+            item.submenu?.id === 'jp-mainmenu-settings-codemirror-theme'
+        )?.submenu;
+
+        if (themeMenu) {
+          for (const theme of themes.themes) {
+            themeMenu.addItem({
+              command: CommandIDs.changeTheme,
+              args: {
+                theme: theme.name,
+                displayName: theme.displayName ?? theme.name
+              }
+            });
+          }
+        }
+
+        // Add go to line capabilities to the edit menu.
+        menu.editMenu.goToLiners.add({
+          id: CommandIDs.goToLine,
+          isEnabled: (w: Widget) =>
+            tracker.currentWidget !== null && tracker.has(w)
+        });
+      }
+
       Commands.updateSettings(settings, commands);
       Commands.updateTracker(tracker);
       settings.changed.connect(() => {
@@ -279,6 +453,18 @@ function activate(
       Commands.updateTracker(tracker);
     });
 
+  if (formRegistry) {
+    const CMRenderer = formRegistry.getRenderer(
+      '@jupyterlab/codemirror-extension:plugin.defaultConfig'
+    );
+    if (CMRenderer) {
+      formRegistry.addRenderer(
+        '@jupyterlab/fileeditor-extension:plugin.editorConfig',
+        CMRenderer
+      );
+    }
+  }
+
   factory.widgetCreated.connect((sender, widget) => {
     // Notify the widget tracker if restore data needs to update.
     widget.context.pathChanged.connect(() => {
@@ -295,13 +481,44 @@ function activate(
   });
 
   Commands.addCommands(
-    commands,
+    app.commands,
     settingRegistry,
     trans,
     id,
     isEnabled,
     tracker,
-    browserFactory
+    fileBrowser,
+    extensions,
+    languages,
+    consoleTracker,
+    sessionDialogs
+  );
+
+  const codeViewerTracker = new WidgetTracker<MainAreaWidget<CodeViewerWidget>>(
+    {
+      namespace: 'codeviewer'
+    }
+  );
+
+  // Handle state restoration for code viewers
+  if (restorer) {
+    void restorer.restore(codeViewerTracker, {
+      command: CommandIDs.openCodeViewer,
+      args: widget => ({
+        content: widget.content.content,
+        label: widget.content.title.label,
+        mimeType: widget.content.mimeType,
+        widgetId: widget.content.id
+      }),
+      name: widget => widget.content.id
+    });
+  }
+
+  Commands.addOpenCodeViewerCommand(
+    app,
+    editorServices,
+    codeViewerTracker,
+    trans
   );
 
   // Add a launcher item if the launcher is available.
@@ -314,14 +531,7 @@ function activate(
   }
 
   if (menu) {
-    Commands.addMenuItems(
-      menu,
-      commands,
-      tracker,
-      trans,
-      consoleTracker,
-      sessionDialogs
-    );
+    Commands.addMenuItems(menu, tracker, consoleTracker, isEnabled);
   }
 
   getAvailableKernelFileTypes()
@@ -350,5 +560,121 @@ function activate(
       console.error(reason.message);
     });
 
+  if (tocRegistry) {
+    tocRegistry.add(new LaTeXTableOfContentsFactory(tracker));
+    tocRegistry.add(new MarkdownTableOfContentsFactory(tracker));
+    tocRegistry.add(new PythonTableOfContentsFactory(tracker));
+  }
+
   return tracker;
 }
+
+/**
+ * Activate the completer service for file editor.
+ */
+function activateFileEditorCompleterService(
+  app: JupyterFrontEnd,
+  editorTracker: IEditorTracker,
+  manager: ICompletionProviderManager | null,
+  translator: ITranslator | null,
+  appSanitizer: IRenderMime.ISanitizer | null
+): void {
+  if (!manager) {
+    return;
+  }
+
+  Commands.addCompleterCommands(
+    app.commands,
+    editorTracker,
+    manager,
+    translator
+  );
+  const sessionManager = app.serviceManager.sessions;
+  const sanitizer = appSanitizer ?? new Sanitizer();
+  const _activeSessions = new Map<string, Session.ISessionConnection>();
+  const updateCompleter = async (
+    _: IEditorTracker,
+    widget: IDocumentWidget<FileEditor>
+  ) => {
+    const completerContext = {
+      editor: widget.content.editor,
+      widget
+    };
+
+    await manager.updateCompleter(completerContext);
+    const onRunningChanged = (
+      _: Session.IManager,
+      models: Session.IModel[]
+    ) => {
+      const oldSession = _activeSessions.get(widget.id);
+      // Search for a matching path.
+      const model = find(models, m => m.path === widget.context.path);
+      if (model) {
+        // If there is a matching path, but it is the same
+        // session as we previously had, do nothing.
+        if (oldSession && oldSession.id === model.id) {
+          return;
+        }
+        // Otherwise, dispose of the old session and reset to
+        // a new CompletionConnector.
+        if (oldSession) {
+          _activeSessions.delete(widget.id);
+          oldSession.dispose();
+        }
+        const session = sessionManager.connectTo({ model });
+        const newCompleterContext = {
+          editor: widget.content.editor,
+          widget,
+          session,
+          sanitizer
+        };
+        manager.updateCompleter(newCompleterContext).catch(console.error);
+        _activeSessions.set(widget.id, session);
+      } else {
+        // If we didn't find a match, make sure
+        // the connector is the contextConnector and
+        // dispose of any previous connection.
+        if (oldSession) {
+          _activeSessions.delete(widget.id);
+          oldSession.dispose();
+        }
+      }
+    };
+
+    onRunningChanged(sessionManager, Array.from(sessionManager.running()));
+    sessionManager.runningChanged.connect(onRunningChanged);
+
+    widget.disposed.connect(() => {
+      sessionManager.runningChanged.disconnect(onRunningChanged);
+      const session = _activeSessions.get(widget.id);
+      if (session) {
+        _activeSessions.delete(widget.id);
+        session.dispose();
+      }
+    });
+  };
+  editorTracker.widgetAdded.connect(updateCompleter);
+  manager.activeProvidersChanged.connect(() => {
+    editorTracker.forEach(editorWidget => {
+      updateCompleter(editorTracker, editorWidget).catch(console.error);
+    });
+  });
+}
+
+function activateFileEditorLanguageServer(
+  app: JupyterFrontEnd,
+  editors: IEditorTracker,
+  connectionManager: ILSPDocumentConnectionManager,
+  featureManager: ILSPFeatureManager,
+  extractorManager: ILSPCodeExtractorsManager
+): void {
+  editors.widgetAdded.connect(async (_, editor) => {
+    const adapter = new FileEditorAdapter(editor, {
+      connectionManager,
+      featureManager,
+      foreignCodeExtractorsManager: extractorManager,
+      docRegistry: app.docRegistry
+    });
+    connectionManager.registerAdapter(editor.context.path, adapter);
+  });
+}
diff --git a/packages/fileeditor-extension/src/syntaxstatus.ts b/packages/fileeditor-extension/src/syntaxstatus.ts
new file mode 100644
index 000000000000..a3f4cc392326
--- /dev/null
+++ b/packages/fileeditor-extension/src/syntaxstatus.ts
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  ILabShell,
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import { IEditorLanguageRegistry } from '@jupyterlab/codemirror';
+import { IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  EditorSyntaxStatus,
+  FileEditor,
+  IEditorTracker
+} from '@jupyterlab/fileeditor';
+import { IStatusBar } from '@jupyterlab/statusbar';
+import { ITranslator } from '@jupyterlab/translation';
+
+/**
+ * The JupyterLab plugin for the EditorSyntax status item.
+ */
+export const editorSyntaxStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/fileeditor-extension:editor-syntax-status',
+  description: 'Adds a file editor syntax status widget.',
+  autoStart: true,
+  requires: [IEditorTracker, IEditorLanguageRegistry, ILabShell, ITranslator],
+  optional: [IStatusBar],
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: IEditorTracker,
+    languages: IEditorLanguageRegistry,
+    labShell: ILabShell,
+    translator: ITranslator,
+    statusBar: IStatusBar | null
+  ) => {
+    if (!statusBar) {
+      // Automatically disable if statusbar missing
+      return;
+    }
+    const item = new EditorSyntaxStatus({
+      commands: app.commands,
+      languages,
+      translator
+    });
+    labShell.currentChanged.connect(() => {
+      const current = labShell.currentWidget;
+      if (current && tracker.has(current) && item.model) {
+        item.model.editor = (
+          current as IDocumentWidget<FileEditor>
+        ).content.editor;
+      }
+    });
+    statusBar.registerStatusItem(editorSyntaxStatus.id, {
+      item,
+      align: 'left',
+      rank: 0,
+      isActive: () =>
+        !!labShell.currentWidget &&
+        !!tracker.currentWidget &&
+        labShell.currentWidget === tracker.currentWidget
+    });
+  }
+};
diff --git a/packages/fileeditor-extension/style/index.css b/packages/fileeditor-extension/style/index.css
index 205b177927e3..19a128cc53c1 100644
--- a/packages/fileeditor-extension/style/index.css
+++ b/packages/fileeditor-extension/style/index.css
@@ -6,14 +6,18 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/documentsearch/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
+@import url('~@jupyterlab/completer/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('~@jupyterlab/console/style/index.css');
+@import url('~@jupyterlab/lsp/style/index.css');
 @import url('~@jupyterlab/fileeditor/style/index.css');
 @import url('~@jupyterlab/launcher/style/index.css');
 @import url('~@jupyterlab/mainmenu/style/index.css');
diff --git a/packages/fileeditor-extension/style/index.js b/packages/fileeditor-extension/style/index.js
index ab0ebb971ad9..1d28b462d3c8 100644
--- a/packages/fileeditor-extension/style/index.js
+++ b/packages/fileeditor-extension/style/index.js
@@ -6,14 +6,18 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/statusbar/style/index.js';
-import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/documentsearch/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
+import '@jupyterlab/completer/style/index.js';
 import '@jupyterlab/filebrowser/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 import '@jupyterlab/console/style/index.js';
+import '@jupyterlab/lsp/style/index.js';
 import '@jupyterlab/fileeditor/style/index.js';
 import '@jupyterlab/launcher/style/index.js';
 import '@jupyterlab/mainmenu/style/index.js';
diff --git a/packages/fileeditor-extension/tsconfig.json b/packages/fileeditor-extension/tsconfig.json
index b166ae0ae354..1cd17b71f8e1 100644
--- a/packages/fileeditor-extension/tsconfig.json
+++ b/packages/fileeditor-extension/tsconfig.json
@@ -18,6 +18,9 @@
     {
       "path": "../codemirror"
     },
+    {
+      "path": "../completer"
+    },
     {
       "path": "../console"
     },
@@ -27,6 +30,9 @@
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../documentsearch"
+    },
     {
       "path": "../filebrowser"
     },
@@ -36,18 +42,30 @@
     {
       "path": "../launcher"
     },
+    {
+      "path": "../lsp"
+    },
     {
       "path": "../mainmenu"
     },
     {
       "path": "../observables"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
+    {
+      "path": "../services"
+    },
     {
       "path": "../settingregistry"
     },
     {
       "path": "../statusbar"
     },
+    {
+      "path": "../toc"
+    },
     {
       "path": "../translation"
     },
diff --git a/packages/fileeditor/.vscode/launch.json b/packages/fileeditor/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/fileeditor/.vscode/launch.json
+++ b/packages/fileeditor/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/fileeditor/babel.config.js b/packages/fileeditor/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/fileeditor/babel.config.js
+++ b/packages/fileeditor/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/fileeditor/jest.config.js b/packages/fileeditor/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/fileeditor/jest.config.js
+++ b/packages/fileeditor/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/fileeditor/package.json b/packages/fileeditor/package.json
index c66eab026f19..c8bda3c3dc00 100644
--- a/packages/fileeditor/package.json
+++ b/packages/fileeditor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/fileeditor",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Editor Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,11 +23,10 @@
     "lib": "lib/"
   },
   "files": [
-    "lib/*.d.ts",
-    "lib/*.js.map",
-    "lib/*.js",
+    "lib/**/*.{d.ts,js,js.map}",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,30 +35,36 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0",
+    "regexp-match-indices": "^1.0.2"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/fileeditor/src/fileeditorlspadapter.ts b/packages/fileeditor/src/fileeditorlspadapter.ts
new file mode 100644
index 000000000000..15ac48e5cb1f
--- /dev/null
+++ b/packages/fileeditor/src/fileeditorlspadapter.ts
@@ -0,0 +1,226 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  Document,
+  IAdapterOptions,
+  IVirtualPosition,
+  VirtualDocument,
+  WidgetLSPAdapter
+} from '@jupyterlab/lsp';
+import { PromiseDelegate } from '@lumino/coreutils';
+
+import { FileEditor } from './widget';
+
+export interface IFileEditorAdapterOptions extends IAdapterOptions {
+  /**
+   * The document registry instance.
+   */
+  docRegistry: DocumentRegistry;
+}
+
+export class FileEditorAdapter extends WidgetLSPAdapter<
+  IDocumentWidget<FileEditor>
+> {
+  constructor(
+    editorWidget: IDocumentWidget<FileEditor>,
+    options: IFileEditorAdapterOptions
+  ) {
+    const { docRegistry, ...others } = options;
+    super(editorWidget, others);
+    this.editor = editorWidget.content;
+    this._docRegistry = docRegistry;
+
+    // Ensure editor uniqueness
+    this._virtualEditor = Object.freeze({
+      getEditor: () => this.editor.editor,
+      ready: () => Promise.resolve(this.editor.editor),
+      reveal: () => Promise.resolve(this.editor.editor)
+    });
+
+    Promise.all([this.editor.context.ready, this.connectionManager.ready])
+      .then(async () => {
+        await this.initOnceReady();
+        this._readyDelegate.resolve();
+      })
+      .catch(console.error);
+  }
+
+  /**
+   * The wrapped `FileEditor` widget.
+   */
+  readonly editor: FileEditor;
+
+  /**
+   * Promise that resolves once the adapter is initialized
+   */
+  get ready(): Promise<void> {
+    return this._readyDelegate.promise;
+  }
+
+  /**
+   * Get current path of the document.
+   */
+  get documentPath(): string {
+    return this.widget.context.path;
+  }
+
+  /**
+   * Get the mime type of the document.
+   */
+  get mimeType(): string {
+    const mimeTypeFromModel = this.editor.model.mimeType;
+    const codeMirrorMimeType: string = Array.isArray(mimeTypeFromModel)
+      ? mimeTypeFromModel[0] ?? 'text/plain'
+      : mimeTypeFromModel;
+    const contentsModel = this.editor.context.contentsModel;
+
+    // when MIME type is not known it defaults to 'text/plain',
+    // so if it is different we can accept it as it is
+    if (codeMirrorMimeType != 'text/plain') {
+      return codeMirrorMimeType;
+    } else if (contentsModel) {
+      // a script that does not have a MIME type known by the editor
+      // (no syntax highlight mode), can still be known by the document
+      // registry (and this is arguably easier to extend).
+      let fileType = this._docRegistry.getFileTypeForModel(contentsModel);
+      return fileType.mimeTypes[0];
+    } else {
+      // "text/plain" this is
+      return codeMirrorMimeType;
+    }
+  }
+
+  /**
+   * Get the file extension of the document.
+   */
+  get languageFileExtension(): string {
+    let parts = this.documentPath.split('.');
+    return parts[parts.length - 1];
+  }
+
+  /**
+   * Get the CM editor
+   */
+  get ceEditor(): CodeMirrorEditor {
+    return this.editor.editor as CodeMirrorEditor;
+  }
+
+  /**
+   * Get the activated CM editor.
+   */
+  get activeEditor(): Document.IEditor {
+    return this._virtualEditor;
+  }
+
+  /**
+   * Get the inner HTMLElement of the document widget.
+   */
+  get wrapperElement(): HTMLElement {
+    return this.widget.node;
+  }
+
+  /**
+   * Get current path of the document.
+   */
+  get path(): string {
+    return this.widget.context.path;
+  }
+
+  /**
+   *  Get the list of CM editors in the document, there is only one editor
+   * in the case of file editor.
+   */
+  get editors(): Document.ICodeBlockOptions[] {
+    return [
+      {
+        ceEditor: this._virtualEditor,
+        type: 'code',
+        value: this.editor?.model.sharedModel.getSource() ?? ''
+      }
+    ];
+  }
+
+  /**
+   * Dispose the widget.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this.editor.model.mimeTypeChanged.disconnect(this.reloadConnection);
+    super.dispose();
+  }
+
+  /**
+   * Generate the virtual document associated with the document.
+   */
+  createVirtualDocument(): VirtualDocument {
+    return new VirtualDocument({
+      language: this.language,
+      foreignCodeExtractors: this.options.foreignCodeExtractorsManager,
+      path: this.documentPath,
+      fileExtension: this.languageFileExtension,
+      // notebooks are continuous, each cell is dependent on the previous one
+      standalone: true,
+      // notebooks are not supported by LSP servers
+      hasLspSupportedFile: true
+    });
+  }
+
+  /**
+   * Get the index of editor from the cursor position in the virtual
+   * document. Since there is only one editor, this method always return
+   * 0
+   * @deprecated This is error-prone and will be removed in JupyterLab 5.0, use `getEditorIndex()` with `virtualDocument.getEditorAtVirtualLine(position)` instead.
+   *
+   * @param position - the position of cursor in the virtual document.
+   * @return  {number} - index of the virtual editor
+   */
+  getEditorIndexAt(position: IVirtualPosition): number {
+    return 0;
+  }
+
+  /**
+   * Get the index of input editor
+   *
+   * @param ceEditor - instance of the code editor
+   */
+  getEditorIndex(ceEditor: Document.IEditor): number {
+    return 0;
+  }
+
+  /**
+   * Get the wrapper of input editor.
+   *
+   * @param ceEditor
+   * @return  {HTMLElement}
+   */
+  getEditorWrapper(ceEditor: Document.IEditor): HTMLElement {
+    return this.wrapperElement;
+  }
+
+  /**
+   * Initialization function called once the editor and the LSP connection
+   * manager is ready. This function will create the virtual document and
+   * connect various signals.
+   */
+  protected async initOnceReady(): Promise<void> {
+    this.initVirtual();
+
+    // connect the document, but do not open it as the adapter will handle this
+    // after registering all features
+    await this.connectDocument(this.virtualDocument!, false);
+
+    this.editor.model.mimeTypeChanged.connect(this.reloadConnection, this);
+  }
+
+  /**
+   * The document registry instance.
+   */
+  private readonly _docRegistry: DocumentRegistry;
+  private readonly _virtualEditor: Document.IEditor;
+  private _readyDelegate = new PromiseDelegate<void>();
+}
diff --git a/packages/fileeditor/src/index.ts b/packages/fileeditor/src/index.ts
index 328fa4af8ff7..406ebb10d156 100644
--- a/packages/fileeditor/src/index.ts
+++ b/packages/fileeditor/src/index.ts
@@ -5,6 +5,10 @@
  * @module fileeditor
  */
 
+export * from './fileeditorlspadapter';
+export * from './searchprovider';
+export * from './syntaxstatus';
 export * from './tabspacestatus';
+export * from './toc';
 export * from './tokens';
 export * from './widget';
diff --git a/packages/fileeditor/src/searchprovider.ts b/packages/fileeditor/src/searchprovider.ts
new file mode 100644
index 000000000000..e709c4375e38
--- /dev/null
+++ b/packages/fileeditor/src/searchprovider.ts
@@ -0,0 +1,119 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { MainAreaWidget } from '@jupyterlab/apputils';
+import { CodeMirrorEditor, EditorSearchProvider } from '@jupyterlab/codemirror';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import {
+  IFilters,
+  IReplaceOptionsSupport,
+  ISearchProvider
+} from '@jupyterlab/documentsearch';
+import { ITranslator } from '@jupyterlab/translation';
+import { Widget } from '@lumino/widgets';
+import { FileEditor } from './widget';
+
+/**
+ * Helper type
+ */
+export type FileEditorPanel = MainAreaWidget<FileEditor>;
+
+/**
+ * File editor search provider
+ */
+export class FileEditorSearchProvider
+  extends EditorSearchProvider<CodeEditor.IModel>
+  implements ISearchProvider
+{
+  /**
+   * Constructor
+   * @param widget File editor panel
+   */
+  constructor(protected widget: FileEditorPanel) {
+    super();
+  }
+
+  get isReadOnly(): boolean {
+    return this.editor.getOption('readOnly') as boolean;
+  }
+
+  /**
+   * Support for options adjusting replacement behavior.
+   */
+  get replaceOptionsSupport(): IReplaceOptionsSupport {
+    return {
+      preserveCase: true
+    };
+  }
+
+  /**
+   * Text editor
+   */
+  get editor() {
+    return this.widget.content.editor as CodeMirrorEditor;
+  }
+
+  /**
+   * Editor content model
+   */
+  get model(): CodeEditor.IModel {
+    return this.widget.content.model;
+  }
+
+  async startQuery(
+    query: RegExp,
+    filters: IFilters | undefined
+  ): Promise<void> {
+    await super.startQuery(query, filters);
+    await this.highlightNext(true, {
+      from: 'selection-start',
+      scroll: false,
+      select: false
+    });
+  }
+
+  /**
+   * Instantiate a search provider for the widget.
+   *
+   * #### Notes
+   * The widget provided is always checked using `isApplicable` before calling
+   * this factory.
+   *
+   * @param widget The widget to search on
+   * @param translator [optional] The translator object
+   *
+   * @returns The search provider on the widget
+   */
+  static createNew(
+    widget: FileEditorPanel,
+    translator?: ITranslator
+  ): ISearchProvider {
+    return new FileEditorSearchProvider(widget);
+  }
+
+  /**
+   * Report whether or not this provider has the ability to search on the given object
+   */
+  static isApplicable(domain: Widget): domain is FileEditorPanel {
+    return (
+      domain instanceof MainAreaWidget &&
+      domain.content instanceof FileEditor &&
+      domain.content.editor instanceof CodeMirrorEditor
+    );
+  }
+
+  /**
+   * Get an initial query value if applicable so that it can be entered
+   * into the search box as an initial query
+   *
+   * @returns Initial value used to populate the search box.
+   */
+  getInitialQuery(): string {
+    const cm = this.editor as CodeMirrorEditor;
+    const selection = cm.state.sliceDoc(
+      cm.state.selection.main.from,
+      cm.state.selection.main.to
+    );
+    return selection;
+  }
+}
diff --git a/packages/codemirror/src/syntaxstatus.tsx b/packages/fileeditor/src/syntaxstatus.tsx
similarity index 61%
rename from packages/codemirror/src/syntaxstatus.tsx
rename to packages/fileeditor/src/syntaxstatus.tsx
index bc40aa46dbf2..58352edf36b5 100644
--- a/packages/codemirror/src/syntaxstatus.tsx
+++ b/packages/fileeditor/src/syntaxstatus.tsx
@@ -1,18 +1,18 @@
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { CodeEditor, IEditorMimeTypeService } from '@jupyterlab/codeeditor';
+import { IEditorLanguageRegistry } from '@jupyterlab/codemirror';
 import { IChangedArgs } from '@jupyterlab/coreutils';
-import {
-  interactiveItem,
-  Popup,
-  showPopup,
-  TextItem
-} from '@jupyterlab/statusbar';
+import { Popup, showPopup, TextItem } from '@jupyterlab/statusbar';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { JSONObject } from '@lumino/coreutils';
 import { Menu } from '@lumino/widgets';
 import React from 'react';
-import { Mode } from '.';
 
 /**
  * A namespace for `EditorSyntaxComponentStatics`.
@@ -23,14 +23,14 @@ namespace EditorSyntaxComponent {
    */
   export interface IProps {
     /**
-     * The current CodeMirror mode for an editor.
+     * The current CodeMirror language for an editor.
      */
-    mode: string;
+    language: string;
 
     /**
      * A function to execute on clicking the component.
      * By default we provide a function that opens a menu
-     * for CodeMirror mode selection.
+     * for CodeMirror language selection.
      */
     handleClick: () => void;
   }
@@ -46,7 +46,7 @@ namespace EditorSyntaxComponent {
 function EditorSyntaxComponent(
   props: EditorSyntaxComponent.IProps
 ): React.ReactElement<EditorSyntaxComponent.IProps> {
-  return <TextItem source={props.mode} onClick={props.handleClick} />;
+  return <TextItem source={props.language} onClick={props.handleClick} />;
 }
 
 /**
@@ -56,63 +56,64 @@ export class EditorSyntaxStatus extends VDomRenderer<EditorSyntaxStatus.Model> {
   /**
    * Construct a new VDomRenderer for the status item.
    */
-  constructor(opts: EditorSyntaxStatus.IOptions) {
-    super(new EditorSyntaxStatus.Model());
-    this._commands = opts.commands;
-    this.translator = opts.translator || nullTranslator;
+  constructor(options: EditorSyntaxStatus.IOptions) {
+    super(new EditorSyntaxStatus.Model(options.languages));
+    this._commands = options.commands;
+    this.translator = options.translator ?? nullTranslator;
     const trans = this.translator.load('jupyterlab');
 
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
     this.title.caption = trans.__('Change text editor syntax highlighting');
   }
 
   /**
    * Render the status item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (!this.model) {
       return null;
     }
     return (
       <EditorSyntaxComponent
-        mode={this.model.mode}
+        language={this.model.language}
         handleClick={this._handleClick}
       />
     );
   }
 
   /**
-   * Create a menu for selecting the mode of the editor.
+   * Create a menu for selecting the language of the editor.
    */
   private _handleClick = () => {
-    const modeMenu = new Menu({ commands: this._commands });
-    const command = 'codemirror:change-mode';
+    const languageMenu = new Menu({ commands: this._commands });
+    const command = 'fileeditor:change-language';
     if (this._popup) {
       this._popup.dispose();
     }
-    Mode.getModeInfo()
+    this.model.languages
+      .getLanguages()
       .sort((a, b) => {
-        const aName = a.name || '';
-        const bName = b.name || '';
+        const aName = a.displayName ?? a.name;
+        const bName = b.displayName ?? b.name;
         return aName.localeCompare(bName);
       })
       .forEach(spec => {
-        if (spec.mode.indexOf('brainf') === 0) {
+        if (spec.name.toLowerCase().indexOf('brainf') === 0) {
           return;
         }
 
         const args: JSONObject = {
-          insertSpaces: true,
-          name: spec.name!
+          name: spec.name,
+          displayName: spec.displayName ?? spec.name
         };
 
-        modeMenu.addItem({
+        languageMenu.addItem({
           command,
           args
         });
       });
     this._popup = showPopup({
-      body: modeMenu,
+      body: languageMenu,
       anchor: this,
       align: 'left'
     });
@@ -131,12 +132,15 @@ export namespace EditorSyntaxStatus {
    * A VDomModel for the current editor/mode combination.
    */
   export class Model extends VDomModel {
+    constructor(public languages: IEditorLanguageRegistry) {
+      super();
+    }
     /**
-     * The current mode for the editor. If no editor is present,
+     * The current editor language. If no editor is present,
      * returns the empty string.
      */
-    get mode(): string {
-      return this._mode;
+    get language(): string {
+      return this._language;
     }
 
     /**
@@ -150,18 +154,18 @@ export namespace EditorSyntaxStatus {
       if (oldEditor !== null) {
         oldEditor.model.mimeTypeChanged.disconnect(this._onMIMETypeChange);
       }
-      const oldMode = this._mode;
+      const oldLanguage = this._language;
       this._editor = editor;
       if (this._editor === null) {
-        this._mode = '';
+        this._language = '';
       } else {
-        const spec = Mode.findByMIME(this._editor.model.mimeType);
-        this._mode = spec.name || spec.mode;
+        const spec = this.languages.findByMIME(this._editor.model.mimeType);
+        this._language = spec?.name ?? IEditorMimeTypeService.defaultMimeType;
 
         this._editor.model.mimeTypeChanged.connect(this._onMIMETypeChange);
       }
 
-      this._triggerChange(oldMode, this._mode);
+      this._triggerChange(oldLanguage, this._language);
     }
 
     /**
@@ -171,11 +175,11 @@ export namespace EditorSyntaxStatus {
       mode: CodeEditor.IModel,
       change: IChangedArgs<string>
     ) => {
-      const oldMode = this._mode;
-      const spec = Mode.findByMIME(change.newValue);
-      this._mode = spec.name || spec.mode;
+      const oldLanguage = this._language;
+      const spec = this.languages.findByMIME(change.newValue);
+      this._language = spec?.name ?? IEditorMimeTypeService.defaultMimeType;
 
-      this._triggerChange(oldMode, this._mode);
+      this._triggerChange(oldLanguage, this._language);
     };
 
     /**
@@ -187,7 +191,7 @@ export namespace EditorSyntaxStatus {
       }
     }
 
-    private _mode: string = '';
+    private _language: string = '';
     private _editor: CodeEditor.IEditor | null = null;
   }
 
@@ -200,6 +204,11 @@ export namespace EditorSyntaxStatus {
      */
     commands: CommandRegistry;
 
+    /**
+     * Editor languages.
+     */
+    languages: IEditorLanguageRegistry;
+
     /**
      * The language translator.
      */
diff --git a/packages/fileeditor/src/tabspacestatus.tsx b/packages/fileeditor/src/tabspacestatus.tsx
index a304c14aa0ba..72aa114a9fab 100644
--- a/packages/fileeditor/src/tabspacestatus.tsx
+++ b/packages/fileeditor/src/tabspacestatus.tsx
@@ -1,16 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
-import { CodeEditor } from '@jupyterlab/codeeditor';
-import {
-  clickedItem,
-  interactiveItem,
-  Popup,
-  showPopup,
-  TextItem
-} from '@jupyterlab/statusbar';
+import { Popup, showPopup, TextItem } from '@jupyterlab/statusbar';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { Menu } from '@lumino/widgets';
 import React from 'react';
 
@@ -23,14 +16,11 @@ namespace TabSpaceComponent {
    */
   export interface IProps {
     /**
-     * The number of spaces to insert on tab.
+     * The number of spaces for indentation.
+     *
+     * `null` means use tab character for indentation.
      */
-    tabSpace: number;
-
-    /**
-     * Whether to use spaces or tabs.
-     */
-    isSpaces: boolean;
+    tabSpace: number | null;
 
     /**
      * The application language translator.
@@ -53,14 +43,19 @@ function TabSpaceComponent(
 ): React.ReactElement<TabSpaceComponent.IProps> {
   const translator = props.translator || nullTranslator;
   const trans = translator.load('jupyterlab');
-  const description = props.isSpaces
-    ? trans.__('Spaces')
-    : trans.__('Tab Size');
+  const description =
+    typeof props.tabSpace === 'number'
+      ? trans.__('Spaces')
+      : trans.__('Tab Indent');
   return (
     <TextItem
       onClick={props.handleClick}
-      source={`${description}: ${props.tabSpace}`}
-      title={trans.__('Change Tab indentation…')}
+      source={
+        typeof props.tabSpace === 'number'
+          ? `${description}: ${props.tabSpace}`
+          : description
+      }
+      title={trans.__('Change the indentation…')}
     />
   );
 }
@@ -76,20 +71,23 @@ export class TabSpaceStatus extends VDomRenderer<TabSpaceStatus.Model> {
     super(new TabSpaceStatus.Model());
     this._menu = options.menu;
     this.translator = options.translator || nullTranslator;
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
   }
 
   /**
    * Render the TabSpace status item.
    */
   render(): React.ReactElement<TabSpaceComponent.IProps> | null {
-    if (!this.model || !this.model.config) {
+    if (!this.model?.indentUnit) {
       return null;
     } else {
+      const tabSpace =
+        this.model.indentUnit === 'Tab'
+          ? null
+          : parseInt(this.model.indentUnit, 10);
       return (
         <TabSpaceComponent
-          isSpaces={this.model.config.insertSpaces}
-          tabSpace={this.model.config.tabSize}
+          tabSpace={tabSpace}
           handleClick={() => this._handleClick()}
           translator={this.translator}
         />
@@ -113,10 +111,12 @@ export class TabSpaceStatus extends VDomRenderer<TabSpaceStatus.Model> {
       anchor: this,
       align: 'right'
     });
+    // Update the menu items
+    menu.update();
   }
 
   private _menuClosed(): void {
-    this.removeClass(clickedItem);
+    this.removeClass('jp-mod-clicked');
   }
 
   protected translator: ITranslator;
@@ -133,31 +133,19 @@ export namespace TabSpaceStatus {
    */
   export class Model extends VDomModel {
     /**
-     * The editor config from the settings system.
+     * Code editor indentation unit
      */
-    get config(): CodeEditor.IConfig | null {
-      return this._config;
-    }
-    set config(val: CodeEditor.IConfig | null) {
-      const oldConfig = this._config;
-      this._config = val;
-      this._triggerChange(oldConfig, this._config);
+    get indentUnit(): string | null {
+      return this._indentUnit;
     }
-
-    private _triggerChange(
-      oldValue: CodeEditor.IConfig | null,
-      newValue: CodeEditor.IConfig | null
-    ): void {
-      const oldSpaces = oldValue && oldValue.insertSpaces;
-      const oldSize = oldValue && oldValue.tabSize;
-      const newSpaces = newValue && newValue.insertSpaces;
-      const newSize = newValue && newValue.tabSize;
-      if (oldSpaces !== newSpaces || oldSize !== newSize) {
-        this.stateChanged.emit(void 0);
+    set indentUnit(v: string | null) {
+      if (v !== this._indentUnit) {
+        this._indentUnit = v;
+        this.stateChanged.emit();
       }
     }
 
-    private _config: CodeEditor.IConfig | null = null;
+    private _indentUnit: string | null;
   }
 
   /**
diff --git a/packages/fileeditor/src/toc/factory.ts b/packages/fileeditor/src/toc/factory.ts
new file mode 100644
index 000000000000..19964f702503
--- /dev/null
+++ b/packages/fileeditor/src/toc/factory.ts
@@ -0,0 +1,67 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  TableOfContents,
+  TableOfContentsFactory,
+  TableOfContentsModel
+} from '@jupyterlab/toc';
+import { FileEditor } from '../widget';
+
+/**
+ * Interface describing a file editor heading.
+ */
+export interface IEditorHeading extends TableOfContents.IHeading {
+  /**
+   * Heading line number.
+   */
+  line: number;
+}
+
+/**
+ * Base table of contents model factory for file editor
+ */
+export abstract class EditorTableOfContentsFactory extends TableOfContentsFactory<
+  IDocumentWidget<FileEditor>,
+  IEditorHeading
+> {
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  createNew(
+    widget: IDocumentWidget<FileEditor, DocumentRegistry.IModel>,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContentsModel<
+    IEditorHeading,
+    IDocumentWidget<FileEditor, DocumentRegistry.IModel>
+  > {
+    const model = super.createNew(widget, configuration);
+
+    const onActiveHeadingChanged = (
+      model: TableOfContentsModel<
+        IEditorHeading,
+        IDocumentWidget<FileEditor, DocumentRegistry.IModel>
+      >,
+      heading: IEditorHeading | null
+    ) => {
+      if (heading) {
+        widget.content.editor.setCursorPosition({
+          line: heading.line,
+          column: 0
+        });
+      }
+    };
+
+    model.activeHeadingChanged.connect(onActiveHeadingChanged);
+    widget.disposed.connect(() => {
+      model.activeHeadingChanged.disconnect(onActiveHeadingChanged);
+    });
+
+    return model;
+  }
+}
diff --git a/packages/toc/src/generators/index.ts b/packages/fileeditor/src/toc/index.ts
similarity index 73%
rename from packages/toc/src/generators/index.ts
rename to packages/fileeditor/src/toc/index.ts
index d7694d6122ec..8cbe14bd203d 100644
--- a/packages/toc/src/generators/index.ts
+++ b/packages/fileeditor/src/toc/index.ts
@@ -1,8 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-// Note: keep in alphabetical order...
+export * from './factory';
 export * from './latex';
 export * from './markdown';
-export * from './notebook';
 export * from './python';
diff --git a/packages/fileeditor/src/toc/latex.ts b/packages/fileeditor/src/toc/latex.ts
new file mode 100644
index 000000000000..2435847a3c8a
--- /dev/null
+++ b/packages/fileeditor/src/toc/latex.ts
@@ -0,0 +1,145 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  TableOfContents,
+  TableOfContentsModel,
+  TableOfContentsUtils
+} from '@jupyterlab/toc';
+import { Widget } from '@lumino/widgets';
+import { FileEditor } from '../widget';
+import { EditorTableOfContentsFactory, IEditorHeading } from './factory';
+
+/**
+ * Maps LaTeX section headings to HTML header levels.
+ *
+ * ## Notes
+ *
+ * -   As `part` and `chapter` section headings appear to be less common, assign them to heading level 1.
+ *
+ * @private
+ */
+const LATEX_LEVELS: { [label: string]: number } = {
+  part: 1, // Only available for report and book classes
+  chapter: 1, // Only available for report and book classes
+  section: 1,
+  subsection: 2,
+  subsubsection: 3,
+  paragraph: 4,
+  subparagraph: 5
+};
+
+/**
+ * Regular expression to create the outline
+ */
+const SECTIONS = /^\s*\\(section|subsection|subsubsection){(.+)}/;
+
+/**
+ * Table of content model for LaTeX files.
+ */
+export class LaTeXTableOfContentsModel extends TableOfContentsModel<
+  IEditorHeading,
+  IDocumentWidget<FileEditor, DocumentRegistry.IModel>
+> {
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  get documentType(): string {
+    return 'latex';
+  }
+
+  /**
+   * List of configuration options supported by the model.
+   */
+  get supportedOptions(): (keyof TableOfContents.IConfig)[] {
+    return ['maximalDepth', 'numberHeaders'];
+  }
+
+  /**
+   * Produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected getHeadings(): Promise<IEditorHeading[] | null> {
+    if (!this.isActive) {
+      return Promise.resolve(null);
+    }
+
+    // Split the text into lines:
+    const lines = this.widget.content.model.sharedModel
+      .getSource()
+      .split('\n') as Array<string>;
+
+    const levels = new Array<number>();
+    let previousLevel = levels.length;
+    const headings = new Array<IEditorHeading>();
+    for (let i = 0; i < lines.length; i++) {
+      const match = lines[i].match(SECTIONS);
+      if (match) {
+        const level = LATEX_LEVELS[match[1]];
+        if (level <= this.configuration.maximalDepth) {
+          const prefix = TableOfContentsUtils.getPrefix(
+            level,
+            previousLevel,
+            levels,
+            {
+              ...this.configuration,
+              // Force base numbering and numbering first level
+              baseNumbering: 1,
+              numberingH1: true
+            }
+          );
+          previousLevel = level;
+
+          headings.push({
+            text: match[2],
+            prefix: prefix,
+            level,
+            line: i
+          });
+        }
+      }
+    }
+    return Promise.resolve(headings);
+  }
+}
+
+/**
+ * Table of content model factory for LaTeX files.
+ */
+export class LaTeXTableOfContentsFactory extends EditorTableOfContentsFactory {
+  /**
+   * Whether the factory can handle the widget or not.
+   *
+   * @param widget - widget
+   * @returns boolean indicating a ToC can be generated
+   */
+  isApplicable(widget: Widget): boolean {
+    const isApplicable = super.isApplicable(widget);
+
+    if (isApplicable) {
+      let mime = (widget as any).content?.model?.mimeType;
+      return mime && (mime === 'text/x-latex' || mime === 'text/x-stex');
+    }
+    return false;
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  protected _createNew(
+    widget: IDocumentWidget<FileEditor, DocumentRegistry.IModel>,
+    configuration?: TableOfContents.IConfig
+  ): LaTeXTableOfContentsModel {
+    return new LaTeXTableOfContentsModel(widget, configuration);
+  }
+}
diff --git a/packages/fileeditor/src/toc/markdown.ts b/packages/fileeditor/src/toc/markdown.ts
new file mode 100644
index 000000000000..86d5a15c2dba
--- /dev/null
+++ b/packages/fileeditor/src/toc/markdown.ts
@@ -0,0 +1,90 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  TableOfContents,
+  TableOfContentsModel,
+  TableOfContentsUtils
+} from '@jupyterlab/toc';
+import { Widget } from '@lumino/widgets';
+import { FileEditor } from '../widget';
+import { EditorTableOfContentsFactory, IEditorHeading } from './factory';
+
+/**
+ * Table of content model for Markdown files.
+ */
+export class MarkdownTableOfContentsModel extends TableOfContentsModel<
+  IEditorHeading,
+  IDocumentWidget<FileEditor, DocumentRegistry.IModel>
+> {
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  get documentType(): string {
+    return 'markdown';
+  }
+
+  /**
+   * Produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected getHeadings(): Promise<IEditorHeading[] | null> {
+    if (!this.isActive) {
+      return Promise.resolve(null);
+    }
+
+    const content = this.widget.content.model.sharedModel.getSource();
+
+    const headings = TableOfContentsUtils.filterHeadings(
+      TableOfContentsUtils.Markdown.getHeadings(content),
+      {
+        ...this.configuration,
+        // Force removing numbering as they cannot be displayed
+        // in the document
+        numberHeaders: false
+      }
+    );
+    return Promise.resolve(headings);
+  }
+}
+
+/**
+ * Table of content model factory for Markdown files.
+ */
+export class MarkdownTableOfContentsFactory extends EditorTableOfContentsFactory {
+  /**
+   * Whether the factory can handle the widget or not.
+   *
+   * @param widget - widget
+   * @returns boolean indicating a ToC can be generated
+   */
+  isApplicable(widget: Widget): boolean {
+    const isApplicable = super.isApplicable(widget);
+
+    if (isApplicable) {
+      let mime = (widget as any).content?.model?.mimeType;
+      return mime && TableOfContentsUtils.Markdown.isMarkdown(mime);
+    }
+    return false;
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  protected _createNew(
+    widget: IDocumentWidget<FileEditor, DocumentRegistry.IModel>,
+    configuration?: TableOfContents.IConfig
+  ): MarkdownTableOfContentsModel {
+    return new MarkdownTableOfContentsModel(widget, configuration);
+  }
+}
diff --git a/packages/fileeditor/src/toc/python.ts b/packages/fileeditor/src/toc/python.ts
new file mode 100644
index 000000000000..85a49f07aa3d
--- /dev/null
+++ b/packages/fileeditor/src/toc/python.ts
@@ -0,0 +1,143 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+/*eslint no-invalid-regexp: ["error", { "allowConstructorFlags": ["d"] }]*/
+
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import { TableOfContents, TableOfContentsModel } from '@jupyterlab/toc';
+import { Widget } from '@lumino/widgets';
+import { FileEditor } from '../widget';
+import { EditorTableOfContentsFactory, IEditorHeading } from './factory';
+
+/**
+ * Regular expression to create the outline
+ */
+let KEYWORDS: RegExp;
+try {
+  // https://github.com/tc39/proposal-regexp-match-indices was accepted
+  // in May 2021 (https://github.com/tc39/proposals/blob/main/finished-proposals.md)
+  // So we will fallback to the polyfill regexp-match-indices if not available
+  KEYWORDS = new RegExp('^\\s*(class |def |from |import )', 'd');
+} catch {
+  KEYWORDS = new RegExp('^\\s*(class |def |from |import )');
+}
+
+/**
+ * Table of content model for Python files.
+ */
+export class PythonTableOfContentsModel extends TableOfContentsModel<
+  IEditorHeading,
+  IDocumentWidget<FileEditor, DocumentRegistry.IModel>
+> {
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  get documentType(): string {
+    return 'python';
+  }
+
+  /**
+   * Produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected async getHeadings(): Promise<IEditorHeading[] | null> {
+    if (!this.isActive) {
+      return Promise.resolve(null);
+    }
+
+    // Split the text into lines:
+    const lines = this.widget.content.model.sharedModel
+      .getSource()
+      .split('\n') as Array<string>;
+
+    // Iterate over the lines to get the heading level and text for each line:
+    let headings = new Array<IEditorHeading>();
+    let processingImports = false;
+
+    let indent = 1;
+
+    let lineIdx = -1;
+    for (const line of lines) {
+      lineIdx++;
+      let hasKeyword: RegExpExecArray | null;
+      if (KEYWORDS.flags.includes('d')) {
+        hasKeyword = KEYWORDS.exec(line);
+      } else {
+        const { default: execWithIndices } = await import(
+          'regexp-match-indices'
+        );
+        hasKeyword = execWithIndices(KEYWORDS, line);
+      }
+      if (hasKeyword) {
+        // Index 0 contains the spaces, index 1 is the keyword group
+        const [start] = (hasKeyword as any).indices[1];
+        if (indent === 1 && start > 0) {
+          indent = start;
+        }
+
+        const isImport = ['from ', 'import '].includes(hasKeyword[1]);
+        if (isImport && processingImports) {
+          continue;
+        }
+        processingImports = isImport;
+
+        const level = 1 + start / indent;
+
+        if (level > this.configuration.maximalDepth) {
+          continue;
+        }
+
+        headings.push({
+          text: line.slice(start),
+          level,
+          line: lineIdx
+        });
+      }
+    }
+
+    return Promise.resolve(headings);
+  }
+}
+
+/**
+ * Table of content model factory for Python files.
+ */
+export class PythonTableOfContentsFactory extends EditorTableOfContentsFactory {
+  /**
+   * Whether the factory can handle the widget or not.
+   *
+   * @param widget - widget
+   * @returns boolean indicating a ToC can be generated
+   */
+  isApplicable(widget: Widget): boolean {
+    const isApplicable = super.isApplicable(widget);
+
+    if (isApplicable) {
+      let mime = (widget as any).content?.model?.mimeType;
+      return (
+        mime &&
+        (mime === 'application/x-python-code' || mime === 'text/x-python')
+      );
+    }
+    return false;
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  protected _createNew(
+    widget: IDocumentWidget<FileEditor>,
+    configuration?: TableOfContents.IConfig
+  ): PythonTableOfContentsModel {
+    return new PythonTableOfContentsModel(widget, configuration);
+  }
+}
diff --git a/packages/fileeditor/src/tokens.ts b/packages/fileeditor/src/tokens.ts
index 68e58f517067..5725d9941c51 100644
--- a/packages/fileeditor/src/tokens.ts
+++ b/packages/fileeditor/src/tokens.ts
@@ -12,11 +12,12 @@ import { FileEditor } from './widget';
 export interface IEditorTracker
   extends IWidgetTracker<IDocumentWidget<FileEditor>> {}
 
-/* tslint:disable */
 /**
  * The editor tracker token.
  */
 export const IEditorTracker = new Token<IEditorTracker>(
-  '@jupyterlab/fileeditor:IEditorTracker'
+  '@jupyterlab/fileeditor:IEditorTracker',
+  `A widget tracker for file editors.
+  Use this if you want to be able to iterate over and interact with file editors
+  created by the application.`
 );
-/* tslint:enable */
diff --git a/packages/fileeditor/src/widget.ts b/packages/fileeditor/src/widget.ts
index 81f84bf88d37..263a0bb639b7 100644
--- a/packages/fileeditor/src/widget.ts
+++ b/packages/fileeditor/src/widget.ts
@@ -28,110 +28,6 @@ const CODE_RUNNER = 'jpCodeRunner';
  */
 const UNDOER = 'jpUndoer';
 
-/**
- * A code editor wrapper for the file editor.
- *
- * @deprecated since v3.4
- * Note: This class will be removed in v4.0.
- * From now on, you can directly use the class
- * `CodeEditorWrapper` instead on `FileEditorCodeWrapper`.
- */
-export class FileEditorCodeWrapper extends CodeEditorWrapper {
-  /**
-   * Construct a new editor widget.
-   */
-  constructor(options: FileEditor.IOptions) {
-    super({
-      factory: options.factory,
-      model: options.context.model
-    });
-
-    const context = (this._context = options.context);
-
-    // TODO: move this to the FileEditor when removing the
-    // `FileEditorCodeWrapper`
-    this.addClass('jp-FileEditorCodeWrapper');
-    this.node.dataset[CODE_RUNNER] = 'true';
-    this.node.dataset[UNDOER] = 'true';
-
-    void context.ready.then(() => {
-      this._onContextReady();
-    });
-
-    if (context.model.modelDB.isCollaborative) {
-      const modelDB = context.model.modelDB;
-      void modelDB.connected.then(() => {
-        const collaborators = modelDB.collaborators;
-        if (!collaborators) {
-          return;
-        }
-
-        // Setup the selection style for collaborators
-        const localCollaborator = collaborators.localCollaborator;
-        this.editor.uuid = localCollaborator.sessionId;
-
-        this.editor.selectionStyle = {
-          ...CodeEditor.defaultSelectionStyle,
-          color: localCollaborator.color
-        };
-
-        collaborators.changed.connect(this._onCollaboratorsChanged, this);
-        // Trigger an initial onCollaboratorsChanged event.
-        this._onCollaboratorsChanged();
-      });
-    }
-  }
-
-  /**
-   * Get the context for the editor widget.
-   */
-  get context(): DocumentRegistry.Context {
-    return this._context;
-  }
-
-  /**
-   * A promise that resolves when the file editor is ready.
-   */
-  get ready(): Promise<void> {
-    return this._ready.promise;
-  }
-
-  /**
-   * Handle actions that should be taken when the context is ready.
-   */
-  private _onContextReady(): void {
-    if (this.isDisposed) {
-      return;
-    }
-
-    // Prevent the initial loading from disk from being in the editor history.
-    this.editor.clearHistory();
-    // Resolve the ready promise.
-    this._ready.resolve(undefined);
-  }
-
-  /**
-   * Handle a change to the collaborators on the model
-   * by updating UI elements associated with them.
-   */
-  private _onCollaboratorsChanged(): void {
-    // If there are selections corresponding to non-collaborators,
-    // they are stale and should be removed.
-    const collaborators = this._context.model.modelDB.collaborators;
-    if (!collaborators) {
-      return;
-    }
-    for (const key of this.editor.model.selections.keys()) {
-      if (!collaborators.has(key)) {
-        this.editor.model.selections.delete(key);
-      }
-    }
-  }
-
-  protected _context: DocumentRegistry.Context;
-  private _ready = new PromiseDelegate<void>();
-}
-
 /**
  * A widget for editors.
  */
@@ -146,15 +42,27 @@ export class FileEditor extends Widget {
     const context = (this._context = options.context);
     this._mimeTypeService = options.mimeTypeService;
 
-    const editorWidget = (this.editorWidget = new FileEditorCodeWrapper(
-      options
-    ));
+    const editorWidget = (this._editorWidget = new CodeEditorWrapper({
+      factory: options.factory,
+      model: context.model,
+      editorOptions: {
+        config: FileEditor.defaultEditorConfig
+      }
+    }));
+    this._editorWidget.addClass('jp-FileEditorCodeWrapper');
+    this._editorWidget.node.dataset[CODE_RUNNER] = 'true';
+    this._editorWidget.node.dataset[UNDOER] = 'true';
+
     this.editor = editorWidget.editor;
     this.model = editorWidget.model;
 
+    void context.ready.then(() => {
+      this._onContextReady();
+    });
+
     // Listen for changes to the path.
-    context.pathChanged.connect(this._onPathChanged, this);
     this._onPathChanged();
+    context.pathChanged.connect(this._onPathChanged, this);
 
     const layout = (this.layout = new StackedLayout());
     layout.addWidget(editorWidget);
@@ -164,14 +72,14 @@ export class FileEditor extends Widget {
    * Get the context for the editor widget.
    */
   get context(): DocumentRegistry.Context {
-    return this.editorWidget.context;
+    return this._context;
   }
 
   /**
    * A promise that resolves when the file editor is ready.
    */
   get ready(): Promise<void> {
-    return this.editorWidget.ready;
+    return this._ready.promise;
   }
 
   /**
@@ -230,6 +138,20 @@ export class FileEditor extends Widget {
     }
   }
 
+  /**
+   * Handle actions that should be taken when the context is ready.
+   */
+  private _onContextReady(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    // Prevent the initial loading from disk from being in the editor history.
+    this.editor.clearHistory();
+    // Resolve the ready promise.
+    this._ready.resolve(undefined);
+  }
+
   /**
    * Handle a change to the path.
    */
@@ -237,16 +159,16 @@ export class FileEditor extends Widget {
     const editor = this.editor;
     const localPath = this._context.localPath;
 
-    editor.model.mimeType = this._mimeTypeService.getMimeTypeByFilePath(
-      localPath
-    );
+    editor.model.mimeType =
+      this._mimeTypeService.getMimeTypeByFilePath(localPath);
   }
 
-  private editorWidget: FileEditorCodeWrapper;
-  public model: CodeEditor.IModel;
-  public editor: CodeEditor.IEditor;
-  protected _context: DocumentRegistry.Context;
+  model: CodeEditor.IModel;
+  editor: CodeEditor.IEditor;
+  private _context: DocumentRegistry.Context;
+  private _editorWidget: CodeEditorWrapper;
   private _mimeTypeService: IEditorMimeTypeService;
+  private _ready = new PromiseDelegate<void>();
 }
 
 /**
@@ -272,6 +194,14 @@ export namespace FileEditor {
      */
     context: DocumentRegistry.CodeContext;
   }
+
+  /**
+   * File editor default configuration.
+   */
+  export const defaultEditorConfig: Record<string, any> = {
+    lineNumbers: true,
+    scrollPastEnd: true
+  };
 }
 
 /**
@@ -297,6 +227,7 @@ export class FileEditorFactory extends ABCWidgetFactory<
   ): IDocumentWidget<FileEditor> {
     const func = this._services.factoryService.newDocumentEditor;
     const factory: CodeEditor.Factory = options => {
+      // Use same id as document factory
       return func(options);
     };
     const content = new FileEditor({
diff --git a/packages/fileeditor/style/base.css b/packages/fileeditor/style/base.css
index 0534fc1d9b20..4f98fce8870a 100644
--- a/packages/fileeditor/style/base.css
+++ b/packages/fileeditor/style/base.css
@@ -3,9 +3,6 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-.jp-FileEditor {
-}
-
 /*-----------------------------------------------------------------------------
 | Presentation Mode (.jp-mod-presentationMode)
 |----------------------------------------------------------------------------*/
@@ -13,3 +10,11 @@
 .jp-mod-presentationMode .jp-FileEditor {
   --jp-code-font-size: var(--jp-code-presentation-font-size);
 }
+
+.jp-FileEditorCodeWrapper {
+  overflow: auto;
+}
+
+.jp-FileEditorCodeWrapper .cm-editor {
+  height: 100%;
+}
diff --git a/packages/fileeditor/style/index.css b/packages/fileeditor/style/index.css
index 478404ac11cf..4bba30767ed3 100644
--- a/packages/fileeditor/style/index.css
+++ b/packages/fileeditor/style/index.css
@@ -8,6 +8,9 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
+@import url('~@jupyterlab/documentsearch/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
+@import url('~@jupyterlab/lsp/style/index.css');
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('./base.css');
diff --git a/packages/fileeditor/style/index.js b/packages/fileeditor/style/index.js
index c9ba96089fa5..eccbe0937b5d 100644
--- a/packages/fileeditor/style/index.js
+++ b/packages/fileeditor/style/index.js
@@ -8,6 +8,10 @@ import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
+import '@jupyterlab/documentsearch/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
+import '@jupyterlab/lsp/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 
 import './base.css';
diff --git a/packages/fileeditor/test/python.spec.ts b/packages/fileeditor/test/python.spec.ts
new file mode 100644
index 000000000000..dc4fdbaf5cf1
--- /dev/null
+++ b/packages/fileeditor/test/python.spec.ts
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  IEditorHeading,
+  PythonTableOfContentsModel
+} from '@jupyterlab/fileeditor';
+import { signalToPromise } from '@jupyterlab/testing';
+
+describe('@jupyterlab/fileeditor', () => {
+  describe('PythonTableOfContentsModel', () => {
+    describe('#getHeadings', () => {
+      it.each<[string, IEditorHeading[]]>([
+        ['', []],
+        ['a = 2', []],
+        [
+          'def f(a, b):',
+          [
+            {
+              text: 'def f(a, b):',
+              level: 1,
+              line: 0
+            }
+          ]
+        ],
+        [
+          'class Klass:',
+          [
+            {
+              text: 'class Klass:',
+              level: 1,
+              line: 0
+            }
+          ]
+        ],
+        [
+          'import pathlib',
+          [
+            {
+              text: 'import pathlib',
+              level: 1,
+              line: 0
+            }
+          ]
+        ],
+        [
+          'from pathlib import Path',
+          [
+            {
+              text: 'from pathlib import Path',
+              level: 1,
+              line: 0
+            }
+          ]
+        ],
+        [
+          'import subprocess\nfrom pathlib import Path\n\nimport tempfile',
+          [
+            {
+              text: 'import subprocess',
+              level: 1,
+              line: 0
+            }
+          ]
+        ],
+        [
+          'def f(a, b):\n    def g():\n        pass',
+          [
+            {
+              text: 'def f(a, b):',
+              level: 1,
+              line: 0
+            },
+            {
+              text: 'def g():',
+              level: 2,
+              line: 1
+            }
+          ]
+        ],
+        [
+          'def f(a, b):\n    def g():\n        class C:',
+          [
+            {
+              text: 'def f(a, b):',
+              level: 1,
+              line: 0
+            },
+            {
+              text: 'def g():',
+              level: 2,
+              line: 1
+            },
+            {
+              text: 'class C:',
+              level: 3,
+              line: 2
+            }
+          ]
+        ],
+        [
+          'def f(a, b):\n    def g():\n        pass\n    pass\ndef h():',
+          [
+            {
+              text: 'def f(a, b):',
+              level: 1,
+              line: 0
+            },
+            {
+              text: 'def g():',
+              level: 2,
+              line: 1
+            },
+            {
+              text: 'def h():',
+              level: 1,
+              line: 4
+            }
+          ]
+        ]
+      ])('should extract headings from %s', async (text, headers) => {
+        const model = new PythonTableOfContentsModel({
+          content: {
+            model: {
+              mimeType: 'text/x-python',
+              sharedModel: {
+                getSource: () => text
+              }
+            }
+          } as any
+        } as any);
+
+        const newHeadings = signalToPromise(model.headingsChanged);
+        model.isActive = true; // This will trigger refresh
+        if (headers.length > 0) {
+          // If text has no associated headings the new computed headings
+          // are gonna be empty. So the signal won't be emitted.
+          await newHeadings;
+        } else {
+          await model.refresh();
+        }
+        const headings = model.headings;
+
+        expect(headings).toHaveLength(headers.length);
+        for (let i = 0; i < headers.length; i++) {
+          expect(headings[i]).toEqual(headers[i]);
+        }
+      });
+    });
+  });
+});
diff --git a/packages/fileeditor/test/searchprovider.spec.ts b/packages/fileeditor/test/searchprovider.spec.ts
new file mode 100644
index 000000000000..c6d9365c708c
--- /dev/null
+++ b/packages/fileeditor/test/searchprovider.spec.ts
@@ -0,0 +1,191 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { FileEditorSearchProvider } from '@jupyterlab/fileeditor';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
+import {
+  Context,
+  DocumentRegistry,
+  TextModelFactory
+} from '@jupyterlab/docregistry';
+import { FileEditor } from '@jupyterlab/fileeditor';
+import { ServiceManager } from '@jupyterlab/services';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { UUID } from '@lumino/coreutils';
+import { MainAreaWidget } from '@jupyterlab/apputils';
+
+describe('@jupyterlab/fileeditor', () => {
+  const modelFactory = new TextModelFactory();
+  const languages = (() => {
+    const registry = new EditorLanguageRegistry();
+    EditorLanguageRegistry.getDefaultLanguages()
+      .filter(language => ['Python'].includes(language.name))
+      .forEach(language => {
+        registry.addLanguage(language);
+      });
+    return registry;
+  })();
+  const extensions = (() => {
+    const registry = new EditorExtensionRegistry();
+    registry.addExtension({
+      name: 'binding',
+      factory: ({ model }) => {
+        return EditorExtensionRegistry.createImmutableExtension(
+          ybinding({ ytext: (model.sharedModel as any).ysource })
+        );
+      }
+    });
+
+    return registry;
+  })();
+  const factoryService = new CodeMirrorEditorFactory({ extensions, languages });
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
+  let context: Context<DocumentRegistry.ICodeModel>;
+  let manager: ServiceManager.IManager;
+
+  beforeAll(() => {
+    manager = new ServiceManagerMock();
+    return manager.ready;
+  });
+
+  describe('FileEditorSearchProvider', () => {
+    let widget: FileEditor;
+    let provider: FileEditorSearchProvider;
+
+    beforeEach(async () => {
+      const path = UUID.uuid4() + '.py';
+      context = new Context({ manager, factory: modelFactory, path });
+      widget = new FileEditor({
+        factory: options => factoryService.newDocumentEditor(options),
+        mimeTypeService,
+        context
+      });
+      provider = new FileEditorSearchProvider(
+        new MainAreaWidget({ content: widget })
+      );
+      await context.initialize(true);
+      await context.ready;
+      widget.context.model.fromString('test test\ntest');
+    });
+
+    afterEach(() => {
+      widget.dispose();
+    });
+
+    describe('#matchesCount', () => {
+      it('should return number of matches', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.matchesCount).toBe(3);
+        await provider.startQuery(/t/, undefined);
+        expect(provider.matchesCount).toBe(6);
+      });
+    });
+
+    describe('#highlightNext()', () => {
+      it('should highlight next match', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.endQuery();
+      });
+
+      it('should find multi-line matches', async () => {
+        await provider.startQuery(/est\nte/, undefined);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should not focus the editor', async () => {
+        await provider.startQuery(/test/, undefined);
+        await provider.highlightNext();
+        expect(widget.editor.hasFocus()).toBe(false);
+      });
+
+      it('should loop back to first match', async () => {
+        widget.editor.setCursorPosition({ line: 1, column: 0 });
+        await provider.startQuery(/test/, undefined);
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should do nothing if the document is empty', async () => {
+        widget.context.model.fromString('');
+        await provider.startQuery(/test/, undefined);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(null);
+        await provider.endQuery();
+      });
+    });
+
+    describe('#highlightPrevious()', () => {
+      it('should highlight previous match', async () => {
+        widget.editor.setCursorPosition({ line: 1, column: 0 });
+        await provider.startQuery(/tes/, undefined);
+        expect(provider.currentMatchIndex).toBe(2);
+        expect(widget.editor.getCursorPosition().line).toBe(1);
+        await provider.highlightPrevious();
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightPrevious();
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should loop back to last match', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightPrevious();
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.endQuery();
+      });
+    });
+
+    describe('#replaceCurrentMatch()', () => {
+      it('should replace highlighted match when editor is blurred', async () => {
+        widget.editor.setCursorPosition({ line: 1, column: 0 });
+        await provider.startQuery(/tes/, undefined);
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.replaceCurrentMatch('bar');
+        expect(widget.context.model.toString()).toBe('test test\nbart');
+        await provider.endQuery();
+      });
+
+      it('should replace first match when editor is blurred', async () => {
+        await provider.startQuery(/tes/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.replaceCurrentMatch('bar');
+        expect(widget.context.model.toString()).toBe('bart test\ntest');
+        await provider.endQuery();
+      });
+
+      it('should replace first match when editor is focused', async () => {
+        widget.editor.focus();
+        await provider.startQuery(/tes/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.replaceCurrentMatch('bar');
+        expect(widget.context.model.toString()).toBe('bart test\ntest');
+        await provider.endQuery();
+      });
+    });
+
+    describe('#replaceAllMatches()', () => {
+      it('should replace all matches', async () => {
+        await provider.startQuery(/test/, undefined);
+        await provider.replaceAllMatches('bar');
+        expect(widget.context.model.toString()).toBe('bar bar\nbar');
+        await provider.endQuery();
+      });
+    });
+  });
+});
diff --git a/packages/fileeditor/test/widget.spec.ts b/packages/fileeditor/test/widget.spec.ts
index c2a51a388c1b..27c7b76034ee 100644
--- a/packages/fileeditor/test/widget.spec.ts
+++ b/packages/fileeditor/test/widget.spec.ts
@@ -3,7 +3,8 @@
 
 import {
   CodeMirrorEditorFactory,
-  CodeMirrorMimeTypeService
+  CodeMirrorMimeTypeService,
+  EditorLanguageRegistry
 } from '@jupyterlab/codemirror';
 import {
   Context,
@@ -11,14 +12,10 @@ import {
   DocumentWidget,
   TextModelFactory
 } from '@jupyterlab/docregistry';
-import {
-  FileEditor,
-  FileEditorCodeWrapper,
-  FileEditorFactory
-} from '@jupyterlab/fileeditor';
+import { FileEditor, FileEditorFactory } from '@jupyterlab/fileeditor';
 import { ServiceManager } from '@jupyterlab/services';
-import { framePromise } from '@jupyterlab/testutils';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { framePromise } from '@jupyterlab/testing';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
 import { UUID } from '@lumino/coreutils';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
@@ -53,52 +50,24 @@ class LogFileEditor extends FileEditor {
 describe('fileeditorcodewrapper', () => {
   const factoryService = new CodeMirrorEditorFactory();
   const modelFactory = new TextModelFactory();
-  const mimeTypeService = new CodeMirrorMimeTypeService();
+  const languages = (() => {
+    const registry = new EditorLanguageRegistry();
+    EditorLanguageRegistry.getDefaultLanguages()
+      .filter(language => ['Julia', 'Python'].includes(language.name))
+      .forEach(language => {
+        registry.addLanguage(language);
+      });
+    return registry;
+  })();
+  const mimeTypeService = new CodeMirrorMimeTypeService(languages);
   let context: Context<DocumentRegistry.ICodeModel>;
   let manager: ServiceManager.IManager;
 
   beforeAll(() => {
-    manager = new Mock.ServiceManagerMock();
+    manager = new ServiceManagerMock();
     return manager.ready;
   });
 
-  describe('FileEditorCodeWrapper', () => {
-    let widget: FileEditorCodeWrapper;
-
-    beforeEach(() => {
-      const path = UUID.uuid4() + '.py';
-      context = new Context({ manager, factory: modelFactory, path });
-      widget = new FileEditorCodeWrapper({
-        factory: options => factoryService.newDocumentEditor(options),
-        mimeTypeService,
-        context
-      });
-    });
-
-    afterEach(() => {
-      widget.dispose();
-    });
-
-    describe('#constructor()', () => {
-      it('should create an editor wrapper widget', () => {
-        expect(widget).toBeInstanceOf(FileEditorCodeWrapper);
-      });
-
-      it('should update the editor text when the model changes', async () => {
-        await context.initialize(true);
-        await context.ready;
-        widget.context.model.fromString('foo');
-        expect(widget.editor.model.value.text).toBe('foo');
-      });
-    });
-
-    describe('#context', () => {
-      it('should be the context used by the widget', () => {
-        expect(widget.context).toBe(context);
-      });
-    });
-  });
-
   describe('FileEditor', () => {
     let widget: LogFileEditor;
 
@@ -125,7 +94,7 @@ describe('fileeditorcodewrapper', () => {
         await context.initialize(true);
         await context.ready;
         widget.context.model.fromString('foo');
-        expect(widget.editor.model.value.text).toBe('foo');
+        expect(widget.editor.model.sharedModel.getSource()).toBe('foo');
       });
 
       it('should set the mime type for the path', () => {
@@ -200,6 +169,13 @@ describe('fileeditorcodewrapper', () => {
         expect(widget.editor.hasFocus()).toBe(true);
       });
     });
+
+    describe('#ready', () => {
+      it('should resolve after initialization', async () => {
+        await context.initialize(true);
+        return expect(widget.ready).resolves.toBe(undefined);
+      });
+    });
   });
 
   describe('FileEditorFactory', () => {
diff --git a/packages/fileeditor/tsconfig.json b/packages/fileeditor/tsconfig.json
index decd92cca2e3..d5417dea2ae7 100644
--- a/packages/fileeditor/tsconfig.json
+++ b/packages/fileeditor/tsconfig.json
@@ -4,7 +4,7 @@
     "outDir": "lib",
     "rootDir": "src"
   },
-  "include": ["src/*"],
+  "include": ["src/**/*"],
   "references": [
     {
       "path": "../apputils"
@@ -12,12 +12,27 @@
     {
       "path": "../codeeditor"
     },
+    {
+      "path": "../codemirror"
+    },
+    {
+      "path": "../coreutils"
+    },
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../documentsearch"
+    },
+    {
+      "path": "../lsp"
+    },
     {
       "path": "../statusbar"
     },
+    {
+      "path": "../toc"
+    },
     {
       "path": "../translation"
     },
diff --git a/packages/fileeditor/tsconfig.test.json b/packages/fileeditor/tsconfig.test.json
index 26d0ca5c1eba..5ee3c13c145c 100644
--- a/packages/fileeditor/tsconfig.test.json
+++ b/packages/fileeditor/tsconfig.test.json
@@ -9,40 +9,37 @@
       "path": "../codeeditor"
     },
     {
-      "path": "../docregistry"
+      "path": "../codemirror"
     },
     {
-      "path": "../statusbar"
-    },
-    {
-      "path": "../translation"
+      "path": "../coreutils"
     },
     {
-      "path": "../ui-components"
+      "path": "../docregistry"
     },
     {
-      "path": "."
+      "path": "../documentsearch"
     },
     {
-      "path": "../../testutils"
+      "path": "../lsp"
     },
     {
-      "path": "../apputils"
+      "path": "../statusbar"
     },
     {
-      "path": "../codeeditor"
+      "path": "../toc"
     },
     {
-      "path": "../docregistry"
+      "path": "../translation"
     },
     {
-      "path": "../statusbar"
+      "path": "../ui-components"
     },
     {
-      "path": "../translation"
+      "path": "."
     },
     {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/help-extension/package.json b/packages/help-extension/package.json
index f7d8a6f38696..ea1b2e4b1361 100644
--- a/packages/help-extension/package.json
+++ b/packages/help-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/help-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Help Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,23 +38,23 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/help-extension/schema/launch-classic.json b/packages/help-extension/schema/launch-classic.json
index 7a369b6641ce..57652813a78f 100644
--- a/packages/help-extension/schema/launch-classic.json
+++ b/packages/help-extension/schema/launch-classic.json
@@ -8,10 +8,6 @@
             "type": "separator",
             "rank": 1
           },
-          {
-            "command": "help:launch-classic-notebook",
-            "rank": 1
-          },
           {
             "type": "separator",
             "rank": 1
diff --git a/packages/help-extension/src/index.tsx b/packages/help-extension/src/index.tsx
index f6524f9ce87e..ddafaaf4bca4 100644
--- a/packages/help-extension/src/index.tsx
+++ b/packages/help-extension/src/index.tsx
@@ -6,29 +6,30 @@
  */
 
 import {
+  ILabShell,
   ILayoutRestorer,
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import {
-  CommandToolbarButton,
   Dialog,
   ICommandPalette,
-  IFrame,
   MainAreaWidget,
   showDialog,
-  Toolbar,
   WidgetTracker
 } from '@jupyterlab/apputils';
 import { PageConfig, URLExt } from '@jupyterlab/coreutils';
 import { IMainMenu } from '@jupyterlab/mainmenu';
-import { KernelMessage } from '@jupyterlab/services';
+import { Kernel, KernelMessage, Session } from '@jupyterlab/services';
 import { ITranslator } from '@jupyterlab/translation';
 import {
+  CommandToolbarButton,
   copyrightIcon,
+  IFrame,
   jupyterIcon,
   jupyterlabWordmarkIcon,
-  refreshIcon
+  refreshIcon,
+  Toolbar
 } from '@jupyterlab/ui-components';
 import { ReadonlyJSONObject } from '@lumino/coreutils';
 import { Menu } from '@lumino/widgets';
@@ -51,8 +52,6 @@ namespace CommandIDs {
 
   export const hide = 'help:hide';
 
-  export const launchClassic = 'help:launch-classic-notebook';
-
   export const jupyterForum = 'help:jupyter-forum';
 
   export const licenses = 'help:licenses';
@@ -77,6 +76,7 @@ const HELP_CLASS = 'jp-Help';
  */
 const about: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/help-extension:about',
+  description: 'Adds a "About" dialog feature.',
   autoStart: true,
   requires: [ITranslator],
   optional: [ICommandPalette],
@@ -164,41 +164,12 @@ const about: JupyterFrontEndPlugin<void> = {
   }
 };
 
-/**
- * A plugin to add a command to open the Classic Notebook interface.
- */
-const launchClassic: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/help-extension:launch-classic',
-  autoStart: true,
-  requires: [ITranslator],
-  optional: [ICommandPalette],
-  activate: (
-    app: JupyterFrontEnd,
-    translator: ITranslator,
-    palette: ICommandPalette | null
-  ): void => {
-    const { commands } = app;
-    const trans = translator.load('jupyterlab');
-    const category = trans.__('Help');
-
-    commands.addCommand(CommandIDs.launchClassic, {
-      label: trans.__('Launch Classic Notebook'),
-      execute: () => {
-        window.open(PageConfig.getBaseUrl() + 'tree');
-      }
-    });
-
-    if (palette) {
-      palette.addItem({ command: CommandIDs.launchClassic, category });
-    }
-  }
-};
-
 /**
  * A plugin to add a command to open the Jupyter Forum.
  */
 const jupyterForum: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/help-extension:jupyter-forum',
+  description: 'Adds command to open the Jupyter Forum website.',
   autoStart: true,
   requires: [ITranslator],
   optional: [ICommandPalette],
@@ -229,13 +200,15 @@ const jupyterForum: JupyterFrontEndPlugin<void> = {
  */
 const resources: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/help-extension:resources',
+  description: 'Adds commands to Jupyter reference documentation websites.',
   autoStart: true,
   requires: [IMainMenu, ITranslator],
-  optional: [ICommandPalette, ILayoutRestorer],
+  optional: [ILabShell, ICommandPalette, ILayoutRestorer],
   activate: (
     app: JupyterFrontEnd,
     mainMenu: IMainMenu,
     translator: ITranslator,
+    labShell: ILabShell | null,
     palette: ICommandPalette | null,
     restorer: ILayoutRestorer | null
   ): void => {
@@ -248,12 +221,11 @@ const resources: JupyterFrontEndPlugin<void> = {
     const resources = [
       {
         text: trans.__('JupyterLab Reference'),
-        url: 'https://jupyterlab.readthedocs.io/en/3.6.x/'
+        url: 'https://jupyterlab.readthedocs.io/en/stable/'
       },
       {
         text: trans.__('JupyterLab FAQ'),
-        url:
-          'https://jupyterlab.readthedocs.io/en/3.6.x/getting_started/faq.html'
+        url: 'https://jupyterlab.readthedocs.io/en/stable/getting_started/faq.html'
       },
       {
         text: trans.__('Jupyter Reference'),
@@ -269,18 +241,6 @@ const resources: JupyterFrontEndPlugin<void> = {
       return a.text.localeCompare(b.text);
     });
 
-    // Handle state restoration.
-    if (restorer) {
-      void restorer.restore(tracker, {
-        command: CommandIDs.open,
-        args: widget => ({
-          url: widget.content.url,
-          text: widget.content.title.label
-        }),
-        name: widget => widget.content.url
-      });
-    }
-
     /**
      * Create a new HelpWidget widget.
      */
@@ -302,6 +262,43 @@ const resources: JupyterFrontEndPlugin<void> = {
       return widget;
     }
 
+    commands.addCommand(CommandIDs.open, {
+      label: args =>
+        (args['text'] as string) ??
+        trans.__('Open the provided `url` in a tab.'),
+      execute: args => {
+        const url = args['url'] as string;
+        const text = args['text'] as string;
+        const newBrowserTab = (args['newBrowserTab'] as boolean) || false;
+
+        // If help resource will generate a mixed content error, load externally.
+        if (
+          newBrowserTab ||
+          (LAB_IS_SECURE && URLExt.parse(url).protocol !== 'https:')
+        ) {
+          window.open(url);
+          return;
+        }
+
+        const widget = newHelpWidget(url, text);
+        void tracker.add(widget);
+        shell.add(widget, 'main');
+        return widget;
+      }
+    });
+
+    // Handle state restoration.
+    if (restorer) {
+      void restorer.restore(tracker, {
+        command: CommandIDs.open,
+        args: widget => ({
+          url: widget.content.url,
+          text: widget.content.title.label
+        }),
+        name: widget => widget.content.url
+      });
+    }
+
     // Populate the Help menu.
     const helpMenu = mainMenu.helpMenu;
 
@@ -316,7 +313,11 @@ const resources: JupyterFrontEndPlugin<void> = {
       string,
       KernelMessage.IInfoReplyMsg['content']
     >();
-    serviceManager.sessions.runningChanged.connect((m, sessions) => {
+
+    const onSessionRunningChanged = (
+      m: Session.IManager,
+      sessions: Session.IModel[]
+    ) => {
       // If a new session has been added, it is at the back
       // of the session list. If one has changed or stopped,
       // it does not hurt to check it.
@@ -335,115 +336,107 @@ const resources: JupyterFrontEndPlugin<void> = {
         kernelConnectionOptions: { handleComms: false }
       });
 
-      void session.kernel?.info.then(kernelInfo => {
-        const name = session.kernel!.name;
+      void session.kernel?.info
+        .then(kernelInfo => {
+          const name = session.kernel!.name;
 
-        // Check the cache second time so that, if two callbacks get scheduled,
-        // they don't try to add the same commands.
-        if (kernelInfoCache.has(name)) {
-          return;
-        }
-        // Set the Kernel Info cache.
-        kernelInfoCache.set(name, kernelInfo);
-
-        // Utility function to check if the current widget
-        // has registered itself with the help menu.
-        const usesKernel = () => {
-          let result = false;
-          const widget = app.shell.currentWidget;
-          if (!widget) {
-            return result;
+          // Check the cache second time so that, if two callbacks get scheduled,
+          // they don't try to add the same commands.
+          if (kernelInfoCache.has(name)) {
+            return;
           }
-          helpMenu.kernelUsers.forEach(u => {
-            if (u.tracker.has(widget) && u.getKernel(widget)?.name === name) {
-              result = true;
-            }
-          });
-          return result;
-        };
 
-        // Add the kernel banner to the Help Menu.
-        const bannerCommand = `help-menu-${name}:banner`;
-        const spec = serviceManager.kernelspecs?.specs?.kernelspecs[name];
-        if (!spec) {
-          return;
-        }
-        const kernelName = spec.display_name;
-        let kernelIconUrl =
-          spec.resources['logo-svg'] || spec.resources['logo-64x64'];
-        commands.addCommand(bannerCommand, {
-          label: trans.__('About the %1 Kernel', kernelName),
-          isVisible: usesKernel,
-          isEnabled: usesKernel,
-          execute: () => {
-            // Create the header of the about dialog
-            const headerLogo = <img src={kernelIconUrl} />;
-            const title = (
-              <span className="jp-About-header">
-                {headerLogo}
-                <div className="jp-About-header-info">{kernelName}</div>
-              </span>
+          const spec = serviceManager.kernelspecs?.specs?.kernelspecs[name];
+          if (!spec) {
+            return;
+          }
+
+          // Set the Kernel Info cache.
+          kernelInfoCache.set(name, kernelInfo);
+
+          // Utility function to check if the current widget
+          // has registered itself with the help menu.
+          let usesKernel = false;
+          const onCurrentChanged = async () => {
+            const kernel: Kernel.IKernelConnection | null =
+              await commands.execute('helpmenu:get-kernel');
+            usesKernel = kernel?.name === name;
+          };
+          // Set the status for the current widget
+          onCurrentChanged().catch(error => {
+            console.error(
+              'Failed to get the kernel for the current widget.',
+              error
             );
-            const banner = <pre>{kernelInfo.banner}</pre>;
-            const body = <div className="jp-About-body">{banner}</div>;
-
-            return showDialog({
-              title,
-              body,
-              buttons: [
-                Dialog.createButton({
-                  label: trans.__('Dismiss'),
-                  className: 'jp-About-button jp-mod-reject jp-mod-styled'
-                })
-              ]
-            });
+          });
+          if (labShell) {
+            // Update status when current widget changes
+            labShell.currentChanged.connect(onCurrentChanged);
           }
-        });
-        helpMenu.addGroup([{ command: bannerCommand }], 20);
-
-        // Add the kernel info help_links to the Help menu.
-        const kernelGroup: Menu.IItemOptions[] = [];
-        (kernelInfo.help_links || []).forEach(link => {
-          const commandId = `help-menu-${name}:${link.text}`;
-          commands.addCommand(commandId, {
-            label: link.text,
-            isVisible: usesKernel,
-            isEnabled: usesKernel,
+          const isEnabled = () => usesKernel;
+
+          // Add the kernel banner to the Help Menu.
+          const bannerCommand = `help-menu-${name}:banner`;
+          const kernelName = spec.display_name;
+          const kernelIconUrl =
+            spec.resources['logo-svg'] || spec.resources['logo-64x64'];
+          commands.addCommand(bannerCommand, {
+            label: trans.__('About the %1 Kernel', kernelName),
+            isVisible: isEnabled,
+            isEnabled,
             execute: () => {
-              return commands.execute(CommandIDs.open, link);
+              // Create the header of the about dialog
+              const headerLogo = <img src={kernelIconUrl} />;
+              const title = (
+                <span className="jp-About-header">
+                  {headerLogo}
+                  <div className="jp-About-header-info">{kernelName}</div>
+                </span>
+              );
+              const banner = <pre>{kernelInfo.banner}</pre>;
+              const body = <div className="jp-About-body">{banner}</div>;
+
+              return showDialog({
+                title,
+                body,
+                buttons: [
+                  Dialog.createButton({
+                    label: trans.__('Dismiss'),
+                    className: 'jp-About-button jp-mod-reject jp-mod-styled'
+                  })
+                ]
+              });
             }
           });
-          kernelGroup.push({ command: commandId });
+          helpMenu.addGroup([{ command: bannerCommand }], 20);
+
+          // Add the kernel info help_links to the Help menu.
+          const kernelGroup: Menu.IItemOptions[] = [];
+          (kernelInfo.help_links || []).forEach(link => {
+            const commandId = `help-menu-${name}:${link.text}`;
+            commands.addCommand(commandId, {
+              label: commands.label(CommandIDs.open, link),
+              isVisible: isEnabled,
+              isEnabled,
+              execute: () => {
+                return commands.execute(CommandIDs.open, link);
+              }
+            });
+            kernelGroup.push({ command: commandId });
+          });
+          helpMenu.addGroup(kernelGroup, 21);
+        })
+        .then(() => {
+          // Dispose of the session object since we no longer need it.
+          session.dispose();
         });
-        helpMenu.addGroup(kernelGroup, 21);
-
-        // Dispose of the session object since we no longer need it.
-        session.dispose();
-      });
-    });
+    };
 
-    commands.addCommand(CommandIDs.open, {
-      label: args => args['text'] as string,
-      execute: args => {
-        const url = args['url'] as string;
-        const text = args['text'] as string;
-        const newBrowserTab = (args['newBrowserTab'] as boolean) || false;
-
-        // If help resource will generate a mixed content error, load externally.
-        if (
-          newBrowserTab ||
-          (LAB_IS_SECURE && URLExt.parse(url).protocol !== 'https:')
-        ) {
-          window.open(url);
-          return;
-        }
-
-        const widget = newHelpWidget(url, text);
-        void tracker.add(widget);
-        shell.add(widget, 'main');
-        return widget;
-      }
-    });
+    // Create menu items for currently running sessions
+    for (const model of serviceManager.sessions.running()) {
+      onSessionRunningChanged(serviceManager.sessions, [model]);
+    }
+    serviceManager.sessions.runningChanged.connect(onSessionRunningChanged);
 
     if (palette) {
       resources.forEach(args => {
@@ -463,6 +456,7 @@ const resources: JupyterFrontEndPlugin<void> = {
  */
 const licenses: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/help-extension:licenses',
+  description: 'Adds licenses used report tools.',
   autoStart: true,
   requires: [ITranslator],
   optional: [IMainMenu, ICommandPalette, ILayoutRestorer],
@@ -558,7 +552,7 @@ const licenses: JupyterFrontEndPlugin<void> = {
       label: licensesText,
       execute: (args: any) => {
         const licenseMain = createLicenseWidget(args as Licenses.ICreateArgs);
-        shell.add(licenseMain, 'main');
+        shell.add(licenseMain, 'main', { type: 'Licenses' });
 
         // add to tracker so it can be restored, and update when choices change
         void licensesTracker.add(licenseMain);
@@ -617,11 +611,8 @@ const licenses: JupyterFrontEndPlugin<void> = {
         command: CommandIDs.licenses,
         name: widget => 'licenses',
         args: widget => {
-          const {
-            currentBundleName,
-            currentPackageIndex,
-            packageFilter
-          } = widget.content.model;
+          const { currentBundleName, currentPackageIndex, packageFilter } =
+            widget.content.model;
 
           const args: Licenses.ICreateArgs = {
             currentBundleName,
@@ -637,7 +628,6 @@ const licenses: JupyterFrontEndPlugin<void> = {
 
 const plugins: JupyterFrontEndPlugin<any>[] = [
   about,
-  launchClassic,
   jupyterForum,
   resources,
   licenses
diff --git a/packages/help-extension/src/licenses.tsx b/packages/help-extension/src/licenses.tsx
index 687f712728e0..411a16817710 100644
--- a/packages/help-extension/src/licenses.tsx
+++ b/packages/help-extension/src/licenses.tsx
@@ -1,14 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
 import { ServerConnection } from '@jupyterlab/services';
 import { TranslationBundle } from '@jupyterlab/translation';
 import {
   jsonIcon,
   LabIcon,
   markdownIcon,
-  spreadsheetIcon
+  spreadsheetIcon,
+  VDomModel,
+  VDomRenderer
 } from '@jupyterlab/ui-components';
 import { PromiseDelegate, ReadonlyJSONObject } from '@lumino/coreutils';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -16,6 +17,8 @@ import { h, VirtualElement } from '@lumino/virtualdom';
 import { Panel, SplitPanel, TabBar, Widget } from '@lumino/widgets';
 import * as React from 'react';
 
+const FILTER_SECTION_TITLE_CLASS = 'jp-Licenses-Filters-title';
+
 /**
  * A license viewer
  */
@@ -510,7 +513,9 @@ export namespace Licenses {
       return (
         <div>
           <label>
-            <strong>{trans.__('Filter Licenses By')}</strong>
+            <strong className={FILTER_SECTION_TITLE_CLASS}>
+              {trans.__('Filter Licenses By')}
+            </strong>
           </label>
           <ul>
             <li>
@@ -527,7 +532,9 @@ export namespace Licenses {
             </li>
           </ul>
           <label>
-            <strong>{trans.__('Distributions')}</strong>
+            <strong className={FILTER_SECTION_TITLE_CLASS}>
+              {trans.__('Distributions')}
+            </strong>
           </label>
         </div>
       );
diff --git a/packages/help-extension/style/base.css b/packages/help-extension/style/base.css
index 3c4d4a3a7a1d..ab347ee49930 100644
--- a/packages/help-extension/style/base.css
+++ b/packages/help-extension/style/base.css
@@ -12,6 +12,7 @@
 
 .jp-Help > iframe {
   border: none;
+
   /* Forcing white color to avoid contrast issues see issue #11320 */
   background: white;
 }
@@ -29,6 +30,7 @@
 
 .jp-About-version-info {
   color: var(--jp-ui-font-color1);
+
   /* Dialog-header sets the font size to 3, we reset to 1 */
   font-size: var(--jp-ui-font-size1);
   width: 200px;
@@ -38,18 +40,8 @@
   line-height: 1.12;
 }
 
-.jp-Dialog
-  .jp-Dialog-content
-  .jp-Dialog-footer
-  .jp-Dialog-button.jp-About-button {
-  margin-right: 0px;
-}
-
 .jp-About-version {
   display: block;
-}
-
-.jp-About-version {
   padding-top: 8px;
 }
 
@@ -61,8 +53,9 @@
   padding-top: 12px;
 }
 
-.jp-About-externalLinks .jp-Button-flat {
-  color: #f37726;
+.jp-About-externalLinks > .jp-Button-flat,
+.jp-About-externalLinks > .jp-Button-flat:hover {
+  color: var(--jp-content-link-color);
 }
 
 .jp-About-copyright {
@@ -114,16 +107,18 @@
   display: block;
 }
 
-.jp-Licenses-Filters label strong {
+.jp-Licenses-Filters-title {
   font-weight: 600;
   text-transform: uppercase;
   letter-spacing: 1px;
   font-size: var(--jp-ui-font-size0);
+  color: var(--jp-ui-font-color0);
 }
 
 .jp-RenderedHTMLCommon.jp-Licenses-Filters ul,
 .jp-RenderedHTMLCommon.jp-Licenses-Filters li {
   list-style: none;
+  color: var(--jp-ui-font-color0);
 }
 
 .jp-Licenses-Filters input {
@@ -207,7 +202,7 @@
   text-align: left;
 }
 
-.jp-Licenses-Grid table td:nth-child(1) {
+.jp-Licenses-Grid td:nth-child(1) {
   max-width: calc(2 * var(--jp-ui-font-size1));
 }
 
@@ -219,7 +214,7 @@
   background-color: transparent;
 }
 
-.jp-Licenses-Grid table tr.jp-mod-selected {
+.jp-Licenses-Grid tr.jp-mod-selected {
   background-color: var(--jp-brand-color1);
   color: #fff;
 }
diff --git a/packages/help-extension/style/index.css b/packages/help-extension/style/index.css
index 5a0431546862..b7c3cecfb3e7 100644
--- a/packages/help-extension/style/index.css
+++ b/packages/help-extension/style/index.css
@@ -8,5 +8,4 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/mainmenu/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/htmlviewer-extension/package.json b/packages/htmlviewer-extension/package.json
index 683eb36c8e14..f17208fbbf32 100644
--- a/packages/htmlviewer-extension/package.json
+++ b/packages/htmlviewer-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/htmlviewer-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab extension to render HTML files",
   "keywords": [
     "jupyter",
@@ -26,7 +26,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -34,18 +35,18 @@
     "watch": "tsc -w"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/htmlviewer": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/htmlviewer": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/htmlviewer-extension/schema/plugin.json b/packages/htmlviewer-extension/schema/plugin.json
index e66210866531..da617970ccb5 100644
--- a/packages/htmlviewer-extension/schema/plugin.json
+++ b/packages/htmlviewer-extension/schema/plugin.json
@@ -19,6 +19,12 @@
       },
       "type": "array",
       "default": []
+    },
+    "trustByDefault": {
+      "type": "boolean",
+      "title": "Trust HTML by default",
+      "description": "Whether to trust HTML files upon opening",
+      "default": false
     }
   },
   "additionalProperties": false,
@@ -54,6 +60,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/htmlviewer-extension/src/index.tsx b/packages/htmlviewer-extension/src/index.tsx
index f5813fe0b19a..f44a93c58986 100644
--- a/packages/htmlviewer-extension/src/index.tsx
+++ b/packages/htmlviewer-extension/src/index.tsx
@@ -30,6 +30,8 @@ import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
 import { html5Icon } from '@jupyterlab/ui-components';
 
+const HTML_VIEWER_PLUGIN_ID = '@jupyterlab/htmlviewer-extension:plugin';
+
 /**
  * Factory name
  */
@@ -47,7 +49,8 @@ namespace CommandIDs {
  */
 const htmlPlugin: JupyterFrontEndPlugin<IHTMLViewerTracker> = {
   activate: activateHTMLViewer,
-  id: '@jupyterlab/htmlviewer-extension:plugin',
+  id: HTML_VIEWER_PLUGIN_ID,
+  description: 'Adds HTML file viewer and provides its tracker.',
   provides: IHTMLViewerTracker,
   requires: [ITranslator],
   optional: [
@@ -76,10 +79,10 @@ function activateHTMLViewer(
   const trans = translator.load('jupyterlab');
 
   if (toolbarRegistry) {
-    toolbarRegistry.registerFactory<HTMLViewer>(FACTORY, 'refresh', widget =>
+    toolbarRegistry.addFactory<HTMLViewer>(FACTORY, 'refresh', widget =>
       ToolbarItems.createRefreshButton(widget, translator)
     );
-    toolbarRegistry.registerFactory<HTMLViewer>(FACTORY, 'trust', widget =>
+    toolbarRegistry.addFactory<HTMLViewer>(FACTORY, 'trust', widget =>
       ToolbarItems.createTrustButton(widget, translator)
     );
 
@@ -109,6 +112,7 @@ function activateHTMLViewer(
   // Create a new viewer factory.
   const factory = new HTMLViewerFactory({
     name: FACTORY,
+    label: trans.__('HTML Viewer'),
     fileTypes: ['html'],
     defaultFor: ['html'],
     readOnly: true,
@@ -130,6 +134,26 @@ function activateHTMLViewer(
     });
   }
 
+  let trustByDefault = false;
+
+  if (settingRegistry) {
+    const loadSettings = settingRegistry.load(HTML_VIEWER_PLUGIN_ID);
+    const updateSettings = (settings: ISettingRegistry.ISettings): void => {
+      trustByDefault = settings.get('trustByDefault').composite as boolean;
+    };
+
+    Promise.all([loadSettings, app.restored])
+      .then(([settings]) => {
+        updateSettings(settings);
+        settings.changed.connect(settings => {
+          updateSettings(settings);
+        });
+      })
+      .catch((reason: Error) => {
+        console.error(reason.message);
+      });
+  }
+
   app.docRegistry.addWidgetFactory(factory);
   factory.widgetCreated.connect((sender, widget) => {
     // Track the widget.
@@ -144,6 +168,8 @@ function activateHTMLViewer(
       app.commands.notifyCommandChanged(CommandIDs.trustHTML);
     });
 
+    widget.trusted = trustByDefault;
+
     widget.title.icon = ft.icon!;
     widget.title.iconClass = ft.iconClass ?? '';
     widget.title.iconLabel = ft.iconLabel ?? '';
@@ -169,7 +195,7 @@ function activateHTMLViewer(
     execute: () => {
       const current = tracker.currentWidget;
       if (!current) {
-        return false;
+        return;
       }
       current.trusted = !current.trusted;
     }
diff --git a/packages/htmlviewer/package.json b/packages/htmlviewer/package.json
index e1536010f1a6..cce0799c3d9d 100644
--- a/packages/htmlviewer/package.json
+++ b/packages/htmlviewer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/htmlviewer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "A viewer for HTML documents.",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,7 +24,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,19 +33,19 @@
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/celltags/src/index.ts b/packages/htmlviewer/src/index.ts
similarity index 69%
rename from packages/celltags/src/index.ts
rename to packages/htmlviewer/src/index.ts
index 0fc246e6cbb2..3f2d186974b2 100644
--- a/packages/celltags/src/index.ts
+++ b/packages/htmlviewer/src/index.ts
@@ -2,9 +2,8 @@
 // Distributed under the terms of the Modified BSD License.
 /**
  * @packageDocumentation
- * @module celltags
+ * @module htmlviewer
  */
 
-export * from './addwidget';
-export * from './tool';
+export * from './tokens';
 export * from './widget';
diff --git a/packages/htmlviewer/src/tokens.ts b/packages/htmlviewer/src/tokens.ts
new file mode 100644
index 000000000000..1ce4b4198d93
--- /dev/null
+++ b/packages/htmlviewer/src/tokens.ts
@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { IWidgetTracker } from '@jupyterlab/apputils';
+import { Token } from '@lumino/coreutils';
+import { HTMLViewer } from './widget';
+
+/**
+ * A class that tracks HTML viewer widgets.
+ */
+export interface IHTMLViewerTracker extends IWidgetTracker<HTMLViewer> {}
+
+/**
+ * The HTML viewer tracker token.
+ */
+export const IHTMLViewerTracker = new Token<IHTMLViewerTracker>(
+  '@jupyterlab/htmlviewer:IHTMLViewerTracker',
+  `A widget tracker for rendered HTML documents.
+  Use this if you want to be able to iterate over and interact with HTML documents
+  viewed by the application.`
+);
diff --git a/packages/htmlviewer/src/index.tsx b/packages/htmlviewer/src/widget.tsx
similarity index 82%
rename from packages/htmlviewer/src/index.tsx
rename to packages/htmlviewer/src/widget.tsx
index fed8fca83320..711659db7b53 100644
--- a/packages/htmlviewer/src/index.tsx
+++ b/packages/htmlviewer/src/widget.tsx
@@ -2,19 +2,7 @@
 | Copyright (c) Jupyter Development Team.
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
-/**
- * @packageDocumentation
- * @module htmlviewer
- */
 
-import {
-  IFrame,
-  IWidgetTracker,
-  ReactWidget,
-  ToolbarButton,
-  ToolbarButtonComponent,
-  UseSignal
-} from '@jupyterlab/apputils';
 import { ActivityMonitor } from '@jupyterlab/coreutils';
 import {
   ABCWidgetFactory,
@@ -23,23 +11,18 @@ import {
   IDocumentWidget
 } from '@jupyterlab/docregistry';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { refreshIcon } from '@jupyterlab/ui-components';
-import { Token } from '@lumino/coreutils';
+import {
+  IFrame,
+  ReactWidget,
+  refreshIcon,
+  ToolbarButton,
+  ToolbarButtonComponent,
+  UseSignal
+} from '@jupyterlab/ui-components';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
 
-/**
- * A class that tracks HTML viewer widgets.
- */
-export interface IHTMLViewerTracker extends IWidgetTracker<HTMLViewer> {}
-
-/**
- * The HTML viewer tracker token.
- */
-export const IHTMLViewerTracker = new Token<IHTMLViewerTracker>(
-  '@jupyterlab/htmlviewer:IHTMLViewerTracker'
-);
 /**
  * The timeout to wait for change activity to have ceased before rendering.
  */
@@ -50,6 +33,36 @@ const RENDER_TIMEOUT = 1000;
  */
 const CSS_CLASS = 'jp-HTMLViewer';
 
+const UNTRUSTED_LINK_STYLE = (options: { warning: string }) => `<style>
+a[target="_blank"],
+area[target="_blank"],
+form[target="_blank"],
+button[formtarget="_blank"],
+input[formtarget="_blank"][type="image"],
+input[formtarget="_blank"][type="submit"] {
+  cursor: not-allowed !important;
+}
+a[target="_blank"]:hover::after,
+area[target="_blank"]:hover::after,
+form[target="_blank"]:hover::after,
+button[formtarget="_blank"]:hover::after,
+input[formtarget="_blank"][type="image"]:hover::after,
+input[formtarget="_blank"][type="submit"]:hover::after {
+  content: "${options.warning}";
+  box-sizing: border-box;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  z-index: 1000;
+  border: 2px solid #e65100;
+  background-color: #ffb74d;
+  color: black;
+  font-family: system-ui, -apple-system, blinkmacsystemfont, 'Segoe UI', helvetica, arial, sans-serif;
+  text-align: center;
+}
+</style>`;
+
 /**
  * A viewer widget for HTML documents.
  *
@@ -65,7 +78,8 @@ const CSS_CLASS = 'jp-HTMLViewer';
  */
 export class HTMLViewer
   extends DocumentWidget<IFrame>
-  implements IDocumentWidget<IFrame> {
+  implements IDocumentWidget<IFrame>
+{
   /**
    * Create a new widget for rendering HTML.
    */
@@ -104,8 +118,7 @@ export class HTMLViewer
     } else {
       this.content.sandbox = Private.untrusted;
     }
-    // eslint-disable-next-line
-    this.content.url = this.content.url; // Force a refresh.
+    this.update(); // Force a refresh.
     this._trustedChanged.emit(value);
   }
 
@@ -146,7 +159,7 @@ export class HTMLViewer
    */
   private async _renderModel(): Promise<void> {
     let data = this.context.model.toString();
-    data = await this._setBase(data);
+    data = await this._setupDocument(data);
 
     // Set the new iframe url.
     const blob = new Blob([data], { type: 'text/html' });
@@ -169,7 +182,7 @@ export class HTMLViewer
    * Set a <base> element in the HTML string so that the iframe
    * can correctly dereference relative links.
    */
-  private async _setBase(data: string): Promise<string> {
+  private async _setupDocument(data: string): Promise<string> {
     const doc = this._parser.parseFromString(data, 'text/html');
     let base = doc.querySelector('base');
     if (!base) {
@@ -185,16 +198,24 @@ export class HTMLViewer
     // (e.g. CSS and scripts).
     base.href = baseUrl;
     base.target = '_self';
+
+    // Inject dynamic style for links if the document is not trusted
+    if (!this.trusted) {
+      const trans = this.translator.load('jupyterlab');
+      const warning = trans.__('Action disabled as the file is not trusted.');
+      doc.body.insertAdjacentHTML(
+        'beforeend',
+        UNTRUSTED_LINK_STYLE({ warning })
+      );
+    }
     return doc.documentElement.innerHTML;
   }
 
   protected translator: ITranslator;
   private _renderPending = false;
   private _parser = new DOMParser();
-  private _monitor: ActivityMonitor<
-    DocumentRegistry.IModel,
-    void
-  > | null = null;
+  private _monitor: ActivityMonitor<DocumentRegistry.IModel, void> | null =
+    null;
   private _objectUrl: string = '';
   private _trustedChanged = new Signal<this, boolean>(this);
 }
@@ -290,7 +311,10 @@ namespace Private {
   /**
    * Sandbox exceptions for trusted HTML.
    */
-  export const trusted: IFrame.SandboxExceptions[] = ['allow-scripts'];
+  export const trusted: IFrame.SandboxExceptions[] = [
+    'allow-scripts',
+    'allow-popups'
+  ];
 
   /**
    * Namespace for TrustedButton.
@@ -331,7 +355,7 @@ namespace Private {
               (props.htmlDocument.trusted = !props.htmlDocument.trusted)
             }
             tooltip={trans.__(`Whether the HTML file is trusted.
-Trusting the file allows scripts to run in it,
+Trusting the file allows opening pop-ups and running scripts
 which may result in security risks.
 Only enable for files you trust.`)}
             label={
diff --git a/packages/htmlviewer/style/base.css b/packages/htmlviewer/style/base.css
index 8ca4b7b49963..18993e7a26ec 100644
--- a/packages/htmlviewer/style/base.css
+++ b/packages/htmlviewer/style/base.css
@@ -6,9 +6,6 @@
 /* Document styles */
 .jp-HTMLViewer {
   overflow: hidden;
-}
-
-.jp-HTMLViewer {
   min-width: 100px;
   min-height: 100px;
   width: 100%;
@@ -20,7 +17,7 @@
 }
 
 /*
-When drag events occur, `p-mod-override-cursor` is added to the body.
+When drag events occur, `lm-mod-override-cursor` is added to the body.
 Because iframes steal all cursor events, the following two rules are necessary
 to suppress pointer events while resize drags are occurring. There may be a
 better solution to this problem.
@@ -29,7 +26,7 @@ body.lm-mod-override-cursor .jp-HTMLViewer {
   position: relative;
 }
 
-body.lm-mod-override-cursor .jp-HTMLViewer:before {
+body.lm-mod-override-cursor .jp-HTMLViewer::before {
   content: '';
   position: absolute;
   top: 0;
diff --git a/packages/htmlviewer/style/index.css b/packages/htmlviewer/style/index.css
index 98d5e9c91227..b6fa520a6126 100644
--- a/packages/htmlviewer/style/index.css
+++ b/packages/htmlviewer/style/index.css
@@ -8,5 +8,4 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/hub-extension/package.json b/packages/hub-extension/package.json
index cdd1bb92fa1d..5479ae8662f6 100644
--- a/packages/hub-extension/package.json
+++ b/packages/hub-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/hub-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab integration for JupyterHub",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -25,7 +25,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc",
@@ -33,15 +34,15 @@
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/hub-extension/schema/plugin.json b/packages/hub-extension/schema/menu.json
similarity index 100%
rename from packages/hub-extension/schema/plugin.json
rename to packages/hub-extension/schema/menu.json
diff --git a/packages/hub-extension/src/index.ts b/packages/hub-extension/src/index.ts
index 5000757b60e7..f90a6fc452fe 100644
--- a/packages/hub-extension/src/index.ts
+++ b/packages/hub-extension/src/index.ts
@@ -11,7 +11,8 @@ import {
   ConnectionLost,
   IConnectionLost,
   JupyterFrontEnd,
-  JupyterFrontEndPlugin
+  JupyterFrontEndPlugin,
+  JupyterLab
 } from '@jupyterlab/application';
 import { Dialog, ICommandPalette, showDialog } from '@jupyterlab/apputils';
 import { URLExt } from '@jupyterlab/coreutils';
@@ -99,7 +100,8 @@ function activateHubExtension(
  */
 const hubExtension: JupyterFrontEndPlugin<void> = {
   activate: activateHubExtension,
-  id: 'jupyter.extensions.hub-extension',
+  id: '@jupyterlab/hub-extension:plugin',
+  description: 'Registers commands related to the hub server',
   requires: [JupyterFrontEnd.IPaths, ITranslator],
   optional: [ICommandPalette],
   autoStart: true
@@ -110,7 +112,8 @@ const hubExtension: JupyterFrontEndPlugin<void> = {
  */
 const hubExtensionMenu: JupyterFrontEndPlugin<void> = {
   activate: () => void 0,
-  id: 'jupyter.extensions.hub-extension:plugin',
+  id: '@jupyterlab/hub-extension:menu',
+  description: 'Adds hub related commands to the menu.',
   autoStart: true
 };
 
@@ -123,12 +126,16 @@ const hubExtensionMenu: JupyterFrontEndPlugin<void> = {
  * Otherwise, it shows an error dialog.
  */
 const connectionlost: JupyterFrontEndPlugin<IConnectionLost> = {
-  id: '@jupyterlab/apputils-extension:connectionlost',
+  id: '@jupyterlab/hub-extension:connectionlost',
+  description:
+    'Provides a service to be notified when the connection to the hub server is lost.',
   requires: [JupyterFrontEnd.IPaths, ITranslator],
+  optional: [JupyterLab.IInfo],
   activate: (
     app: JupyterFrontEnd,
     paths: JupyterFrontEnd.IPaths,
-    translator: ITranslator
+    translator: ITranslator,
+    info: JupyterLab.IInfo | null
   ): IConnectionLost => {
     const trans = translator.load('jupyterlab');
     const hubPrefix = paths.urls.hubPrefix || '';
@@ -149,7 +156,12 @@ const connectionlost: JupyterFrontEndPlugin<IConnectionLost> = {
       if (showingError) {
         return;
       }
+
       showingError = true;
+      if (info) {
+        info.isConnected = false;
+      }
+
       const result = await showDialog({
         title: trans.__('Server unavailable or unreachable'),
         body: trans.__(
@@ -161,7 +173,12 @@ const connectionlost: JupyterFrontEndPlugin<IConnectionLost> = {
           Dialog.cancelButton({ label: trans.__('Dismiss') })
         ]
       });
+
+      if (info) {
+        info.isConnected = true;
+      }
       showingError = false;
+
       if (result.button.accept) {
         await app.commands.execute(CommandIDs.restart);
       }
diff --git a/packages/imageviewer-extension/package.json b/packages/imageviewer-extension/package.json
index 8112a1fe55f0..b166d9243de1 100644
--- a/packages/imageviewer-extension/package.json
+++ b/packages/imageviewer-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/imageviewer-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Image Widget Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,16 +38,16 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/imageviewer": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/imageviewer": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/imageviewer-extension/src/index.ts b/packages/imageviewer-extension/src/index.ts
index 25ab1072578e..6cd4b284e952 100644
--- a/packages/imageviewer-extension/src/index.ts
+++ b/packages/imageviewer-extension/src/index.ts
@@ -70,6 +70,7 @@ const TEXT_FILE_REGEX = new RegExp(`[.](${TEXT_FILE_TYPES.join('|')})$`);
  */
 const plugin: JupyterFrontEndPlugin<IImageTracker> = {
   activate,
+  description: 'Adds image viewer and provide its tracker.',
   id: '@jupyterlab/imageviewer-extension:plugin',
   provides: IImageTracker,
   requires: [ITranslator],
@@ -115,6 +116,7 @@ function activate(
 
   const factory = new ImageViewerFactory({
     name: FACTORY,
+    label: trans.__('Image'),
     modelName: 'base64',
     fileTypes: [...FILE_TYPES, ...TEXT_FILE_TYPES],
     defaultFor: FILE_TYPES,
@@ -123,6 +125,7 @@ function activate(
 
   const textFactory = new ImageViewerFactory({
     name: TEXT_FACTORY,
+    label: trans.__('Image (Text)'),
     modelName: 'text',
     fileTypes: TEXT_FILE_TYPES,
     defaultFor: TEXT_FILE_TYPES,
@@ -176,11 +179,11 @@ function activate(
 /**
  * Add the commands for the image widget.
  */
-export function addCommands(
+function addCommands(
   app: JupyterFrontEnd,
   tracker: IImageTracker,
   translator: ITranslator
-) {
+): void {
   const trans = translator.load('jupyterlab');
   const { commands, shell } = app;
 
diff --git a/packages/imageviewer/.vscode/launch.json b/packages/imageviewer/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/imageviewer/.vscode/launch.json
+++ b/packages/imageviewer/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/imageviewer/babel.config.js b/packages/imageviewer/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/imageviewer/babel.config.js
+++ b/packages/imageviewer/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/imageviewer/jest.config.js b/packages/imageviewer/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/imageviewer/jest.config.js
+++ b/packages/imageviewer/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/imageviewer/package.json b/packages/imageviewer/package.json
index 4ead34436ed1..3268d8021898 100644
--- a/packages/imageviewer/package.json
+++ b/packages/imageviewer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/imageviewer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Image Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,26 +37,25 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/imageviewer/src/tokens.ts b/packages/imageviewer/src/tokens.ts
index 5000825d4cd6..84d883c54e3b 100644
--- a/packages/imageviewer/src/tokens.ts
+++ b/packages/imageviewer/src/tokens.ts
@@ -15,11 +15,12 @@ import { ImageViewer } from './widget';
 export interface IImageTracker
   extends IWidgetTracker<IDocumentWidget<ImageViewer>> {}
 
-/* tslint:disable */
 /**
  * The image tracker token.
  */
 export const IImageTracker = new Token<IImageTracker>(
-  '@jupyterlab/imageviewer:IImageTracker'
+  '@jupyterlab/imageviewer:IImageTracker',
+  `A widget tracker for images.
+  Use this if you want to be able to iterate over and interact with images
+  viewed by the application.`
 );
-/* tslint:enable */
diff --git a/packages/imageviewer/src/widget.ts b/packages/imageviewer/src/widget.ts
index cdb34d2cbd6f..301351e9bbab 100644
--- a/packages/imageviewer/src/widget.ts
+++ b/packages/imageviewer/src/widget.ts
@@ -59,7 +59,7 @@ export class ImageViewer extends Widget implements Printing.IPrintable {
    * Print in iframe.
    */
   [Printing.symbol]() {
-    return () => Printing.printWidget(this);
+    return (): Promise<void> => Printing.printWidget(this);
   }
 
   /**
diff --git a/packages/imageviewer/style/index.css b/packages/imageviewer/style/index.css
index a634b5e5550b..7158c218570c 100644
--- a/packages/imageviewer/style/index.css
+++ b/packages/imageviewer/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/imageviewer/test/widget.spec.ts b/packages/imageviewer/test/widget.spec.ts
index 52c7da3c407d..8348d0e1c3ae 100644
--- a/packages/imageviewer/test/widget.spec.ts
+++ b/packages/imageviewer/test/widget.spec.ts
@@ -1,26 +1,19 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { UUID } from '@lumino/coreutils';
-
-import { Contents, ServiceManager } from '@jupyterlab/services';
-
-import { Message, MessageLoop } from '@lumino/messaging';
-
-import { Widget } from '@lumino/widgets';
-
 import {
   Base64ModelFactory,
   Context,
   DocumentRegistry,
   DocumentWidget
 } from '@jupyterlab/docregistry';
-
+import { createFileContext } from '@jupyterlab/docregistry/lib/testutils';
 import { ImageViewer, ImageViewerFactory } from '@jupyterlab/imageviewer';
-
-import { createFileContext } from '@jupyterlab/testutils';
-
-import * as Mock from '@jupyterlab/testutils/lib/mock';
+import { Contents, ServiceManager } from '@jupyterlab/services';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { UUID } from '@lumino/coreutils';
+import { Message, MessageLoop } from '@lumino/messaging';
+import { Widget } from '@lumino/widgets';
 
 class LogImage extends ImageViewer {
   methods: string[] = [];
@@ -70,7 +63,7 @@ describe('ImageViewer', () => {
   let widget: LogImage;
 
   beforeAll(async () => {
-    manager = new Mock.ServiceManagerMock();
+    manager = new ServiceManagerMock();
     await manager.ready;
     return manager.contents.save(IMAGE.path!, IMAGE);
   });
@@ -167,17 +160,14 @@ describe('ImageViewer', () => {
 
 describe('ImageViewerFactory', () => {
   describe('#createNewWidget', () => {
-    it('should create an image document widget', async () => {
+    it('should create an image document widget', () => {
       const factory = new ImageViewerFactory({
         name: 'Image',
         modelName: 'base64',
         fileTypes: ['png'],
         defaultFor: ['png']
       });
-      const context = await createFileContext(
-        IMAGE.path,
-        new Mock.ServiceManagerMock()
-      );
+      const context = createFileContext(IMAGE.path, new ServiceManagerMock());
       const d = factory.createNew(context);
       expect(d).toBeInstanceOf(DocumentWidget);
       expect(d.content).toBeInstanceOf(ImageViewer);
diff --git a/packages/imageviewer/tsconfig.test.json b/packages/imageviewer/tsconfig.test.json
index 2b288a2c68d7..f65453cf4954 100644
--- a/packages/imageviewer/tsconfig.test.json
+++ b/packages/imageviewer/tsconfig.test.json
@@ -15,16 +15,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docregistry"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/inspector-extension/package.json b/packages/inspector-extension/package.json
index da70b7b5e7dd..479357cd90d9 100644
--- a/packages/inspector-extension/package.json
+++ b/packages/inspector-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/inspector-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Code Inspector Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,19 +38,20 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/inspector": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/inspector": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/inspector-extension/schema/inspector.json b/packages/inspector-extension/schema/inspector.json
index 5239acc9e0b8..f79a60d58376 100644
--- a/packages/inspector-extension/schema/inspector.json
+++ b/packages/inspector-extension/schema/inspector.json
@@ -27,6 +27,11 @@
       "command": "inspector:open",
       "keys": ["Accel I"],
       "selector": "body"
+    },
+    {
+      "command": "inspector:close",
+      "keys": ["Accel I"],
+      "selector": "body[data-jp-inspector='open']"
     }
   ],
   "properties": {},
diff --git a/packages/inspector-extension/src/index.ts b/packages/inspector-extension/src/index.ts
index 18627a3edff0..730731f07128 100644
--- a/packages/inspector-extension/src/index.ts
+++ b/packages/inspector-extension/src/index.ts
@@ -27,12 +27,15 @@ import { ILauncher } from '@jupyterlab/launcher';
 import { INotebookTracker } from '@jupyterlab/notebook';
 import { ITranslator } from '@jupyterlab/translation';
 import { inspectorIcon } from '@jupyterlab/ui-components';
+import { Widget } from '@lumino/widgets';
 
 /**
  * The command IDs used by the inspector plugin.
  */
 namespace CommandIDs {
   export const open = 'inspector:open';
+  export const close = 'inspector:close';
+  export const toggle = 'inspector:toggle';
 }
 
 /**
@@ -40,6 +43,7 @@ namespace CommandIDs {
  */
 const inspector: JupyterFrontEndPlugin<IInspector> = {
   id: '@jupyterlab/inspector-extension:inspector',
+  description: 'Provides the code introspection widget.',
   requires: [ITranslator],
   optional: [ICommandPalette, ILauncher, ILayoutRestorer],
   provides: IInspector,
@@ -53,9 +57,12 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
   ): IInspector => {
     const trans = translator.load('jupyterlab');
     const { commands, shell } = app;
-    const command = CommandIDs.open;
-    const label = trans.__('Show Contextual Help');
+    const caption = trans.__(
+      'Live updating code documentation from the active kernel'
+    );
+    const openedLabel = trans.__('Contextual Help');
     const namespace = 'inspector';
+    const datasetKey = 'jpInspector';
     const tracker = new WidgetTracker<MainAreaWidget<InspectorPanel>>({
       namespace
     });
@@ -72,7 +79,7 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
           content: new InspectorPanel({ translator })
         });
         inspector.id = 'jp-inspector';
-        inspector.title.label = label;
+        inspector.title.label = openedLabel;
         inspector.title.icon = inspectorIcon;
         void tracker.add(inspector);
         source = source && !source.isDisposed ? source : null;
@@ -80,23 +87,31 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
         inspector.content.source?.onEditorChange(args);
       }
       if (!inspector.isAttached) {
-        shell.add(inspector, 'main', { activate: false, mode: 'split-right' });
+        shell.add(inspector, 'main', {
+          activate: false,
+          mode: 'split-right',
+          type: 'Inspector'
+        });
       }
       shell.activateById(inspector.id);
+      document.body.dataset[datasetKey] = 'open';
       return inspector;
     }
+    function closeInspector(): void {
+      inspector.dispose();
+      delete document.body.dataset[datasetKey];
+    }
 
-    // Add command to registry.
-    commands.addCommand(command, {
-      caption: trans.__(
-        'Live updating code documentation from the active kernel'
-      ),
+    // Add inspector:open command to registry.
+    const showLabel = trans.__('Show Contextual Help');
+    commands.addCommand(CommandIDs.open, {
+      caption,
       isEnabled: () =>
         !inspector ||
         inspector.isDisposed ||
         !inspector.isAttached ||
         !inspector.isVisible,
-      label,
+      label: showLabel,
       icon: args => (args.isLauncher ? inspectorIcon : undefined),
       execute: args => {
         const text = args && (args.text as string);
@@ -108,21 +123,52 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
       }
     });
 
-    // Add command to UI where possible.
-    if (palette) {
-      palette.addItem({ command, category: label });
-    }
+    // Add inspector:close command to registry.
+    const closeLabel = trans.__('Hide Contextual Help');
+    commands.addCommand(CommandIDs.close, {
+      caption,
+      isEnabled: () => isInspectorOpen(),
+      label: closeLabel,
+      icon: args => (args.isLauncher ? inspectorIcon : undefined),
+      execute: () => closeInspector()
+    });
+
+    // Add inspector:toggle command to registry.
+    const toggleLabel = trans.__('Show Contextual Help');
+    commands.addCommand(CommandIDs.toggle, {
+      caption,
+      label: toggleLabel,
+      isToggled: () => isInspectorOpen(),
+      execute: args => {
+        if (isInspectorOpen()) {
+          closeInspector();
+        } else {
+          const text = args && (args.text as string);
+          openInspector(text);
+        }
+      }
+    });
+
+    // Add open command to launcher if possible.
     if (launcher) {
-      launcher.add({ command, args: { isLauncher: true } });
+      launcher.add({ command: CommandIDs.open, args: { isLauncher: true } });
+    }
+
+    // Add toggle command to command palette if possible.
+    if (palette) {
+      palette.addItem({ command: CommandIDs.toggle, category: toggleLabel });
     }
 
     // Handle state restoration.
     if (restorer) {
-      void restorer.restore(tracker, { command, name: () => 'inspector' });
+      void restorer.restore(tracker, {
+        command: CommandIDs.toggle,
+        name: () => 'inspector'
+      });
     }
 
     // Create a proxy to pass the `source` to the current inspector.
-    const proxy: IInspector = Object.defineProperty({}, 'source', {
+    const proxy = Object.defineProperty({} as IInspector, 'source', {
       get: (): IInspector.IInspectable | null =>
         !inspector || inspector.isDisposed ? null : inspector.content.source,
       set: (src: IInspector.IInspectable | null) => {
@@ -141,7 +187,9 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
  * An extension that registers consoles for inspection.
  */
 const consoles: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/console-extension
   id: '@jupyterlab/inspector-extension:consoles',
+  description: 'Adds code introspection support to consoles.',
   requires: [IInspector, IConsoleTracker, ILabShell],
   autoStart: true,
   activate: (
@@ -181,16 +229,13 @@ const consoles: JupyterFrontEndPlugin<void> = {
     });
 
     // Keep track of console instances and set inspector source.
-    labShell.currentChanged.connect((_, args) => {
-      const widget = args.newValue;
-      if (!widget || !consoles.has(widget)) {
-        return;
-      }
-      const source = handlers[widget.id];
-      if (source) {
-        manager.source = source;
+    const setSource = (widget: Widget | null): void => {
+      if (widget && consoles.has(widget) && handlers[widget.id]) {
+        manager.source = handlers[widget.id];
       }
-    });
+    };
+    labShell.currentChanged.connect((_, args) => setSource(args.newValue));
+    void app.restored.then(() => setSource(labShell.currentWidget));
   }
 };
 
@@ -198,7 +243,9 @@ const consoles: JupyterFrontEndPlugin<void> = {
  * An extension that registers notebooks for inspection.
  */
 const notebooks: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/notebook-extension
   id: '@jupyterlab/inspector-extension:notebooks',
+  description: 'Adds code introspection to notebooks.',
   requires: [IInspector, INotebookTracker, ILabShell],
   autoStart: true,
   activate: (
@@ -226,7 +273,11 @@ const notebooks: JupyterFrontEndPlugin<void> = {
 
       // Listen for active cell changes.
       parent.content.activeCellChanged.connect((sender, cell) => {
-        handler.editor = cell && cell.editor;
+        void cell?.ready.then(() => {
+          if (cell === parent.content.activeCell) {
+            handler.editor = cell!.editor;
+          }
+        });
       });
 
       // Listen for parent disposal.
@@ -237,16 +288,13 @@ const notebooks: JupyterFrontEndPlugin<void> = {
     });
 
     // Keep track of notebook instances and set inspector source.
-    labShell.currentChanged.connect((sender, args) => {
-      const widget = args.newValue;
-      if (!widget || !notebooks.has(widget)) {
-        return;
+    const setSource = (widget: Widget | null): void => {
+      if (widget && notebooks.has(widget) && handlers[widget.id]) {
+        manager.source = handlers[widget.id];
       }
-      const source = handlers[widget.id];
-      if (source) {
-        manager.source = source;
-      }
-    });
+    };
+    labShell.currentChanged.connect((_, args) => setSource(args.newValue));
+    void app.restored.then(() => setSource(labShell.currentWidget));
   }
 };
 
diff --git a/packages/inspector-extension/style/index.css b/packages/inspector-extension/style/index.css
index ca716b8b13f1..43779369e0a8 100644
--- a/packages/inspector-extension/style/index.css
+++ b/packages/inspector-extension/style/index.css
@@ -4,6 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
diff --git a/packages/inspector-extension/style/index.js b/packages/inspector-extension/style/index.js
index 4508898b9a86..ea7c5c11b565 100644
--- a/packages/inspector-extension/style/index.js
+++ b/packages/inspector-extension/style/index.js
@@ -4,6 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/application/style/index.js';
diff --git a/packages/inspector/.vscode/launch.json b/packages/inspector/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/inspector/.vscode/launch.json
+++ b/packages/inspector/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/inspector/babel.config.js b/packages/inspector/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/inspector/babel.config.js
+++ b/packages/inspector/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/inspector/jest.config.js b/packages/inspector/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/inspector/jest.config.js
+++ b/packages/inspector/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/inspector/package.json b/packages/inspector/package.json
index e0e8befab2a0..3041cfaf755a 100644
--- a/packages/inspector/package.json
+++ b/packages/inspector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/inspector",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Code Inspector",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,32 +37,31 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/inspector/src/handler.ts b/packages/inspector/src/handler.ts
index 28ef3ccf6b88..10233438f48c 100644
--- a/packages/inspector/src/handler.ts
+++ b/packages/inspector/src/handler.ts
@@ -66,7 +66,7 @@ export class InspectionHandler implements IDisposable, IInspector.IInspectable {
       // the active cell
       this.onEditorChange();
       editor.model.selections.changed.connect(this._onChange, this);
-      editor.model.value.changed.connect(this._onChange, this);
+      editor.model.sharedModel.changed.connect(this._onChange, this);
     }
   }
 
@@ -124,7 +124,7 @@ export class InspectionHandler implements IDisposable, IInspector.IInspectable {
     if (!editor) {
       return;
     }
-    const text = customText ? customText : editor.model.value.text;
+    const text = customText ? customText : editor.model.sharedModel.getSource();
     const position = editor.getCursorPosition();
     const offset = Text.jsIndexToCharIndex(editor.getOffsetAt(position), text);
     const update: IInspector.IInspectorUpdate = { content: null };
diff --git a/packages/inspector/src/inspector.ts b/packages/inspector/src/inspector.ts
index 1b4ff64020ee..80d3eac3c022 100644
--- a/packages/inspector/src/inspector.ts
+++ b/packages/inspector/src/inspector.ts
@@ -30,7 +30,8 @@ const DEFAULT_CONTENT_CLASS = 'jp-Inspector-default-content';
  */
 export class InspectorPanel
   extends Panel
-  implements IInspector, Printing.IPrintable {
+  implements IInspector, Printing.IPrintable
+{
   /**
    * Construct an inspector.
    */
@@ -61,7 +62,7 @@ export class InspectorPanel
    * Print in iframe
    */
   [Printing.symbol]() {
-    return () => Printing.printWidget(this);
+    return (): Promise<void> => Printing.printWidget(this);
   }
 
   /**
diff --git a/packages/inspector/src/tokens.ts b/packages/inspector/src/tokens.ts
index b55d778044a8..5107e8a945c3 100644
--- a/packages/inspector/src/tokens.ts
+++ b/packages/inspector/src/tokens.ts
@@ -5,14 +5,14 @@ import { Token } from '@lumino/coreutils';
 import { ISignal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 
-/* tslint:disable */
 /**
  * The inspector panel token.
  */
 export const IInspector = new Token<IInspector>(
-  '@jupyterlab/inspector:IInspector'
+  '@jupyterlab/inspector:IInspector',
+  `A service for adding contextual help to widgets (visible using "Show Contextual Help" from the Help menu).
+  Use this to hook into the contextual help system in your extension.`
 );
-/* tslint:enable */
 
 /**
  * An interface for an inspector.
diff --git a/packages/inspector/style/base.css b/packages/inspector/style/base.css
index 10455f9ef23d..9fd9b3eba609 100644
--- a/packages/inspector/style/base.css
+++ b/packages/inspector/style/base.css
@@ -25,9 +25,6 @@
 .jp-Inspector-content {
   background: var(--jp-layout-color1);
   border: none;
-}
-
-.jp-Inspector-content {
   padding: 8px;
   width: 100%;
   height: 100%;
diff --git a/packages/inspector/style/index.css b/packages/inspector/style/index.css
index eb7f17bbda79..26f813878fe2 100644
--- a/packages/inspector/style/index.css
+++ b/packages/inspector/style/index.css
@@ -8,5 +8,4 @@
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/inspector/tsconfig.test.json b/packages/inspector/tsconfig.test.json
index 78e54413861a..80c23262e4f9 100644
--- a/packages/inspector/tsconfig.test.json
+++ b/packages/inspector/tsconfig.test.json
@@ -27,28 +27,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../statedb"
-    },
-    {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/javascript-extension/README.md b/packages/javascript-extension/README.md
index 89c9ffaeeb53..4788b80b28fe 100644
--- a/packages/javascript-extension/README.md
+++ b/packages/javascript-extension/README.md
@@ -14,4 +14,4 @@ Javascript('alert("hello world");')
 
 ## Development
 
-See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md).
+See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md).
diff --git a/packages/javascript-extension/package.json b/packages/javascript-extension/package.json
index 47f9810c63cf..0be6dcb4a86b 100644
--- a/packages/javascript-extension/package.json
+++ b/packages/javascript-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/javascript-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Javascript Renderer",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
   },
   "files": [
     "lib/*.{d.ts,js,js.map}",
-    "style/*"
+    "style/*",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,13 +33,13 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6"
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/javascript-extension/src/index.ts b/packages/javascript-extension/src/index.ts
index 7779b09c42b4..e800a7bdd985 100644
--- a/packages/javascript-extension/src/index.ts
+++ b/packages/javascript-extension/src/index.ts
@@ -68,6 +68,7 @@ export const rendererFactory: IRenderMime.IRendererFactory = {
 
 const extension: IRenderMime.IExtension = {
   id: '@jupyterlab/javascript-extension:factory',
+  description: 'Adds renderer for JavaScript content.',
   rendererFactory,
   rank: 0,
   dataType: 'string'
diff --git a/packages/javascript-extension/style/index.css b/packages/javascript-extension/style/index.css
index 610d16e0dce5..fd4795dde44c 100644
--- a/packages/javascript-extension/style/index.css
+++ b/packages/javascript-extension/style/index.css
@@ -5,5 +5,4 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@jupyterlab/rendermime/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/json-extension/README.md b/packages/json-extension/README.md
index ac17149d98a2..20d567d9ce5b 100644
--- a/packages/json-extension/README.md
+++ b/packages/json-extension/README.md
@@ -40,4 +40,4 @@ To render a `.json` file, simply open it:
 
 ## Development
 
-See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md).
+See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md).
diff --git a/packages/json-extension/package.json b/packages/json-extension/package.json
index e469c1fad713..505fd6219b4e 100644
--- a/packages/json-extension/package.json
+++ b/packages/json-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/json-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - JSON Renderer",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
   },
   "files": [
     "lib/*.{d.ts,js,js.map}",
-    "style/*"
+    "style/*",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,26 +33,28 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
-    "react-highlighter": "^0.4.3",
-    "react-json-tree": "^0.15.0"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lezer/highlight": "^1.1.4",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-highlight-words": "^0.20.0",
+    "react-json-tree": "^0.18.0",
+    "style-mod": "^4.0.0"
   },
   "devDependencies": {
-    "@types/react": "^17.0.0",
-    "@types/react-dom": "^17.0.0",
-    "@types/react-highlighter": "^0.3.4",
-    "@types/react-json-tree": "^0.6.11",
+    "@types/react": "^18.0.26",
+    "@types/react-dom": "^18.0.9",
+    "@types/react-highlight-words": "^0.16.4",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/json-extension/src/component.tsx b/packages/json-extension/src/component.tsx
index de38ff211f91..974dfe6abec9 100644
--- a/packages/json-extension/src/component.tsx
+++ b/packages/json-extension/src/component.tsx
@@ -1,12 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { jupyterHighlightStyle } from '@jupyterlab/codemirror';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { InputGroup } from '@jupyterlab/ui-components';
+import { Tag, tags } from '@lezer/highlight';
 import { JSONArray, JSONExt, JSONObject, JSONValue } from '@lumino/coreutils';
 import * as React from 'react';
-import Highlight from 'react-highlighter';
-import JSONTree from 'react-json-tree';
+import Highlighter from 'react-highlight-words';
+import { JSONTree } from 'react-json-tree';
+import { StyleModule } from 'style-mod';
 
 /**
  * The properties for the JSON tree component.
@@ -19,6 +22,7 @@ export interface IProps {
    * The application language translator.
    */
   translator?: ITranslator;
+  forwardedRef?: React.Ref<HTMLDivElement>;
 }
 
 /**
@@ -29,6 +33,13 @@ export interface IState {
   value: string;
 }
 
+/**
+ * Get the CodeMirror style for a given tag.
+ */
+function getStyle(tag: Tag): string {
+  return jupyterHighlightStyle.style([tag]) ?? '';
+}
+
 /**
  * A component that renders JSON data as a collapsible tree.
  */
@@ -37,7 +48,11 @@ export class Component extends React.Component<IProps, IState> {
 
   timer: number = 0;
 
-  handleChange = (event: React.ChangeEvent<HTMLInputElement>) => {
+  componentDidMount(): void {
+    StyleModule.mount(document, jupyterHighlightStyle.module as StyleModule);
+  }
+
+  handleChange = (event: React.ChangeEvent<HTMLInputElement>): void => {
     const { value } = event.target;
     this.setState({ value });
     window.clearTimeout(this.timer);
@@ -46,17 +61,17 @@ export class Component extends React.Component<IProps, IState> {
     }, 300);
   };
 
-  render() {
+  render(): JSX.Element {
     const translator = this.props.translator || nullTranslator;
     const trans = translator.load('jupyterlab');
 
-    const { data, metadata } = this.props;
+    const { data, metadata, forwardedRef } = this.props;
     const root = metadata && metadata.root ? (metadata.root as string) : 'root';
     const keyPaths = this.state.filter
       ? filterPaths(data, this.state.filter, [root])
       : [root];
     return (
-      <div className="container">
+      <div className="container" ref={forwardedRef}>
         <InputGroup
           className="filter"
           type="text"
@@ -70,9 +85,9 @@ export class Component extends React.Component<IProps, IState> {
           collectionLimit={100}
           theme={{
             extend: theme,
-            valueLabel: 'cm-variable',
-            valueText: 'cm-string',
-            nestedNodeItemString: 'cm-comment'
+            valueLabel: getStyle(tags.variableName),
+            valueText: getStyle(tags.string),
+            nestedNodeItemString: getStyle(tags.comment)
           }}
           invertTheme={false}
           keyPath={[root]}
@@ -82,7 +97,7 @@ export class Component extends React.Component<IProps, IState> {
               <span>
                 {itemType} {itemString}
               </span>
-            ) : Object.keys(data).length === 0 ? (
+            ) : Object.keys(data as object).length === 0 ? (
               // Only display object type when it's empty i.e. "{}".
               <span>{itemType}</span>
             ) : (
@@ -90,47 +105,35 @@ export class Component extends React.Component<IProps, IState> {
             )
           }
           labelRenderer={([label, type]) => {
-            // let className = 'cm-variable';
-            // if (type === 'root') {
-            //   className = 'cm-variable-2';
-            // }
-            // if (type === 'array') {
-            //   className = 'cm-variable-2';
-            // }
-            // if (type === 'Object') {
-            //   className = 'cm-variable-3';
-            // }
             return (
-              <span className="cm-keyword">
-                <Highlight
-                  search={this.state.filter}
-                  matchStyle={{ backgroundColor: 'yellow' }}
-                >
-                  {`${label}: `}
-                </Highlight>
+              <span className={getStyle(tags.keyword)}>
+                <Highlighter
+                  searchWords={[this.state.filter]}
+                  textToHighlight={`${label}`}
+                  highlightClassName="jp-mod-selected"
+                ></Highlighter>
               </span>
             );
           }}
           valueRenderer={raw => {
-            let className = 'cm-string';
+            let className = getStyle(tags.string);
             if (typeof raw === 'number') {
-              className = 'cm-number';
+              className = getStyle(tags.number);
             }
             if (raw === 'true' || raw === 'false') {
-              className = 'cm-keyword';
+              className = getStyle(tags.keyword);
             }
             return (
               <span className={className}>
-                <Highlight
-                  search={this.state.filter}
-                  matchStyle={{ backgroundColor: 'yellow' }}
-                >
-                  {`${raw}`}
-                </Highlight>
+                <Highlighter
+                  searchWords={[this.state.filter]}
+                  textToHighlight={`${raw}`}
+                  highlightClassName="jp-mod-selected"
+                ></Highlighter>
               </span>
             );
           }}
-          shouldExpandNode={(keyPath, data, level) =>
+          shouldExpandNodeInitially={(keyPath, data, level) =>
             metadata && metadata.expanded
               ? true
               : keyPaths.join(',').includes(keyPath.join(','))
diff --git a/packages/json-extension/src/index.tsx b/packages/json-extension/src/index.tsx
index 9bd9d77ec285..b911a146a5ed 100644
--- a/packages/json-extension/src/index.tsx
+++ b/packages/json-extension/src/index.tsx
@@ -12,8 +12,7 @@ import { JSONObject, JSONValue } from '@lumino/coreutils';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
-import * as ReactDOM from 'react-dom';
-import { Component } from './component';
+import { createRoot, Root } from 'react-dom/client';
 
 /**
  * The CSS class to add to the JSON Widget.
@@ -30,7 +29,8 @@ export const MIME_TYPE = 'application/json';
  */
 export class RenderedJSON
   extends Widget
-  implements IRenderMime.IRenderer, Printing.IPrintable {
+  implements IRenderMime.IRenderer, Printing.IPrintable
+{
   /**
    * Create a new widget for rendering JSON.
    */
@@ -38,32 +38,32 @@ export class RenderedJSON
     super();
     this.addClass(CSS_CLASS);
     this.addClass('CodeMirror');
-    this.addClass('cm-s-jupyter');
     this._mimeType = options.mimeType;
     this.translator = options.translator || nullTranslator;
   }
 
   [Printing.symbol]() {
-    return () => Printing.printWidget(this);
+    return (): Promise<void> => Printing.printWidget(this);
   }
 
   /**
    * Render JSON into this widget's node.
    */
-  renderModel(model: IRenderMime.IMimeModel): Promise<void> {
+  async renderModel(model: IRenderMime.IMimeModel): Promise<void> {
+    const { Component } = await import('./component');
     const data = (model.data[this._mimeType] || {}) as NonNullable<JSONValue>;
     const metadata = (model.metadata[this._mimeType] || {}) as JSONObject;
+    if (this._rootDOM === null) {
+      this._rootDOM = createRoot(this.node);
+    }
     return new Promise<void>((resolve, reject) => {
-      ReactDOM.render(
+      this._rootDOM!.render(
         <Component
           data={data}
           metadata={metadata}
           translator={this.translator}
-        />,
-        this.node,
-        () => {
-          resolve();
-        }
+          forwardedRef={() => resolve()}
+        />
       );
     });
   }
@@ -73,11 +73,15 @@ export class RenderedJSON
    */
   protected onBeforeDetach(msg: Message): void {
     // Unmount the component so it can tear down.
-    ReactDOM.unmountComponentAtNode(this.node);
+    if (this._rootDOM) {
+      this._rootDOM.unmount();
+      this._rootDOM = null;
+    }
   }
 
   translator: ITranslator;
   private _mimeType: string;
+  private _rootDOM: Root | null = null;
 }
 
 /**
@@ -92,11 +96,13 @@ export const rendererFactory: IRenderMime.IRendererFactory = {
 const extensions: IRenderMime.IExtension | IRenderMime.IExtension[] = [
   {
     id: '@jupyterlab/json-extension:factory',
+    description: 'Adds renderer for JSON content.',
     rendererFactory,
     rank: 0,
     dataType: 'json',
     documentWidgetFactoryOptions: {
       name: 'JSON',
+      // TODO: how to translate label of the factory?
       primaryFileType: 'json',
       fileTypes: ['json', 'notebook', 'geojson'],
       defaultFor: ['json']
diff --git a/packages/json-extension/style/base.css b/packages/json-extension/style/base.css
index 39f99c139578..90ef5ab37388 100644
--- a/packages/json-extension/style/base.css
+++ b/packages/json-extension/style/base.css
@@ -41,7 +41,13 @@
   overflow-y: auto;
 }
 
+.jp-RenderedJSON mark.jp-mod-selected {
+  background-color: var(--jp-search-unselected-match-background-color);
+  color: var(--jp-search-unselected-match-color);
+}
+
 /* Output styles */
+
 /* .jp-OutputArea .jp-RenderedJSON {
 
 } */
diff --git a/packages/json-extension/style/index.css b/packages/json-extension/style/index.css
index 4f80f4f9b81e..479c9c594d3c 100644
--- a/packages/json-extension/style/index.css
+++ b/packages/json-extension/style/index.css
@@ -7,5 +7,5 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-
+@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('./base.css');
diff --git a/packages/json-extension/style/index.js b/packages/json-extension/style/index.js
index 714d25e16c3d..628b307e6e67 100644
--- a/packages/json-extension/style/index.js
+++ b/packages/json-extension/style/index.js
@@ -7,5 +7,6 @@
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
 
 import './base.css';
diff --git a/packages/json-extension/tsconfig.json b/packages/json-extension/tsconfig.json
index 76e7adc4ceb9..11c45d2f49ff 100644
--- a/packages/json-extension/tsconfig.json
+++ b/packages/json-extension/tsconfig.json
@@ -9,6 +9,9 @@
     {
       "path": "../apputils"
     },
+    {
+      "path": "../codemirror"
+    },
     {
       "path": "../rendermime-interfaces"
     },
diff --git a/packages/launcher-extension/package.json b/packages/launcher-extension/package.json
index ecf1706e8e6d..39e083cffae5 100644
--- a/packages/launcher-extension/package.json
+++ b/packages/launcher-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/launcher-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Launcher Page Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,19 +38,20 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/launcher-extension/schema/plugin.json b/packages/launcher-extension/schema/plugin.json
index dea1c173918a..748cdb3bda4b 100644
--- a/packages/launcher-extension/schema/plugin.json
+++ b/packages/launcher-extension/schema/plugin.json
@@ -1,13 +1,35 @@
 {
   "title": "Launcher",
   "description": "Launcher settings.",
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-file",
+        "items": [
+          {
+            "command": "launcher:create",
+            "rank": 0.99
+          }
+        ]
+      }
+    ]
+  },
   "jupyter.lab.shortcuts": [
     {
       "command": "launcher:create",
-      "keys": [""],
+      "keys": ["Accel Shift L"],
       "selector": "body"
     }
   ],
+  "jupyter.lab.toolbars": {
+    "FileBrowser": [
+      {
+        "name": "new-launcher",
+        "command": "launcher:create",
+        "rank": 1
+      }
+    ]
+  },
   "properties": {},
   "additionalProperties": false,
   "type": "object"
diff --git a/packages/launcher-extension/src/index.ts b/packages/launcher-extension/src/index.ts
index 94dd0d7538f7..6a452bfd7997 100644
--- a/packages/launcher-extension/src/index.ts
+++ b/packages/launcher-extension/src/index.ts
@@ -11,10 +11,15 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import { ICommandPalette, MainAreaWidget } from '@jupyterlab/apputils';
+import {
+  FileBrowserModel,
+  IDefaultFileBrowser,
+  IFileBrowserFactory
+} from '@jupyterlab/filebrowser';
 import { ILauncher, Launcher, LauncherModel } from '@jupyterlab/launcher';
 import { ITranslator } from '@jupyterlab/translation';
-import { launcherIcon } from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
+import { addIcon, launcherIcon } from '@jupyterlab/ui-components';
+import { find } from '@lumino/algorithm';
 import { JSONObject } from '@lumino/coreutils';
 import { DockPanel, TabBar, Widget } from '@lumino/widgets';
 
@@ -31,8 +36,14 @@ namespace CommandIDs {
 const plugin: JupyterFrontEndPlugin<ILauncher> = {
   activate,
   id: '@jupyterlab/launcher-extension:plugin',
+  description: 'Provides the launcher tab service.',
   requires: [ITranslator],
-  optional: [ILabShell, ICommandPalette],
+  optional: [
+    ILabShell,
+    ICommandPalette,
+    IDefaultFileBrowser,
+    IFileBrowserFactory
+  ],
   provides: ILauncher,
   autoStart: true
 };
@@ -49,7 +60,9 @@ function activate(
   app: JupyterFrontEnd,
   translator: ITranslator,
   labShell: ILabShell | null,
-  palette: ICommandPalette | null
+  palette: ICommandPalette | null,
+  defaultBrowser: IDefaultFileBrowser | null,
+  factory: IFileBrowserFactory | null
 ): ILauncher {
   const { commands, shell } = app;
   const trans = translator.load('jupyterlab');
@@ -57,11 +70,16 @@ function activate(
 
   commands.addCommand(CommandIDs.create, {
     label: trans.__('New Launcher'),
+    icon: args => (args.toolbar ? addIcon : undefined),
     execute: (args: JSONObject) => {
-      const cwd = args['cwd'] ? String(args['cwd']) : '';
+      const cwd = (args['cwd'] as string) ?? defaultBrowser?.model.path ?? '';
       const id = `launcher-${Private.id++}`;
       const callback = (item: Widget) => {
-        shell.add(item, 'main', { ref: id });
+        // If widget is attached to the main area replace the launcher
+        if (find(shell.widgets('main'), w => w === item)) {
+          shell.add(item, 'main', { ref: id });
+          launcher.dispose();
+        }
       };
       const launcher = new Launcher({
         model,
@@ -78,7 +96,7 @@ function activate(
       const main = new MainAreaWidget({ content: launcher });
 
       // If there are any other widgets open, remove the launcher close icon.
-      main.title.closable = !!toArray(shell.widgets('main')).length;
+      main.title.closable = !!Array.from(shell.widgets('main')).length;
       main.id = id;
 
       shell.add(main, 'main', {
@@ -89,14 +107,41 @@ function activate(
       if (labShell) {
         labShell.layoutModified.connect(() => {
           // If there is only a launcher open, remove the close icon.
-          main.title.closable = toArray(labShell.widgets('main')).length > 1;
+          main.title.closable = Array.from(labShell.widgets('main')).length > 1;
         }, main);
       }
 
+      if (defaultBrowser) {
+        const onPathChanged = (model: FileBrowserModel) => {
+          launcher.cwd = model.path;
+        };
+        defaultBrowser.model.pathChanged.connect(onPathChanged);
+        launcher.disposed.connect(() => {
+          defaultBrowser.model.pathChanged.disconnect(onPathChanged);
+        });
+      }
+
       return main;
     }
   });
 
+  if (labShell) {
+    void Promise.all([app.restored, defaultBrowser?.model.restored]).then(
+      () => {
+        function maybeCreate() {
+          // Create a launcher if there are no open items.
+          if (labShell!.isEmpty('main')) {
+            void commands.execute(CommandIDs.create);
+          }
+        }
+        // When layout is modified, create a launcher if there are no open items.
+        labShell.layoutModified.connect(() => {
+          maybeCreate();
+        });
+      }
+    );
+  }
+
   if (palette) {
     palette.addItem({
       command: CommandIDs.create,
@@ -111,10 +156,7 @@ function activate(
       const ref =
         arg.currentTitle?.owner.id ||
         arg.titles[arg.titles.length - 1].owner.id;
-      if (commands.hasCommand('filebrowser:create-main-launcher')) {
-        // If a file browser is defined connect the launcher to it
-        return commands.execute('filebrowser:create-main-launcher', { ref });
-      }
+
       return commands.execute(CommandIDs.create, { ref });
     });
   }
diff --git a/packages/launcher-extension/style/base.css b/packages/launcher-extension/style/base.css
new file mode 100644
index 000000000000..33fa8581a905
--- /dev/null
+++ b/packages/launcher-extension/style/base.css
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+.jp-FileBrowser-toolbar
+  .jp-ToolbarButtonComponent[data-command='launcher:create'] {
+  width: 72px;
+  background: var(--jp-brand-color1);
+}
+
+.jp-FileBrowser-toolbar
+  .jp-ToolbarButtonComponent[data-command='launcher:create']:focus-visible {
+  background-color: var(--jp-accept-color-active, var(--jp-brand-color0));
+}
+
+.jp-FileBrowser-toolbar
+  .jp-ToolbarButtonComponent[data-command='launcher:create']
+  .jp-icon3 {
+  fill: var(--jp-layout-color1);
+}
diff --git a/packages/launcher-extension/style/index.css b/packages/launcher-extension/style/index.css
index 60324a05f715..f3b7d0465370 100644
--- a/packages/launcher-extension/style/index.css
+++ b/packages/launcher-extension/style/index.css
@@ -8,4 +8,6 @@
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/filebrowser/style/index.css');
 @import url('~@jupyterlab/launcher/style/index.css');
+@import url('./base.css');
diff --git a/packages/launcher-extension/style/index.js b/packages/launcher-extension/style/index.js
index 7006c5acf5c7..cf6c3efcf79c 100644
--- a/packages/launcher-extension/style/index.js
+++ b/packages/launcher-extension/style/index.js
@@ -8,4 +8,7 @@ import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/filebrowser/style/index.js';
 import '@jupyterlab/launcher/style/index.js';
+
+import './base.css';
diff --git a/packages/launcher-extension/tsconfig.json b/packages/launcher-extension/tsconfig.json
index eb38dfd4ae55..d8f9f182a513 100644
--- a/packages/launcher-extension/tsconfig.json
+++ b/packages/launcher-extension/tsconfig.json
@@ -12,6 +12,9 @@
     {
       "path": "../apputils"
     },
+    {
+      "path": "../filebrowser"
+    },
     {
       "path": "../launcher"
     },
diff --git a/packages/launcher/package.json b/packages/launcher/package.json
index 6dec97334ca0..aeb388a31406 100644
--- a/packages/launcher/package.json
+++ b/packages/launcher/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/launcher",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Launcher Panel",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,22 +37,22 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@types/react": "^17.0.0",
+    "@types/react": "^18.0.26",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/launcher/src/index.ts b/packages/launcher/src/index.ts
new file mode 100644
index 000000000000..97e4df17684a
--- /dev/null
+++ b/packages/launcher/src/index.ts
@@ -0,0 +1,9 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module launcher
+ */
+
+export * from './tokens';
+export * from './widget';
diff --git a/packages/launcher/src/tokens.ts b/packages/launcher/src/tokens.ts
new file mode 100644
index 000000000000..251f358df2c0
--- /dev/null
+++ b/packages/launcher/src/tokens.ts
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ITranslator } from '@jupyterlab/translation';
+import { VDomRenderer } from '@jupyterlab/ui-components';
+import { CommandRegistry } from '@lumino/commands';
+import { ReadonlyJSONObject, Token } from '@lumino/coreutils';
+import { IDisposable } from '@lumino/disposable';
+import { Widget } from '@lumino/widgets';
+
+/**
+ * The launcher token.
+ */
+export const ILauncher = new Token<ILauncher>(
+  '@jupyterlab/launcher:ILauncher',
+  `A service for the application activity launcher.
+  Use this to add your extension activities to the launcher panel.`
+);
+
+/**
+ * The launcher interface.
+ */
+export interface ILauncher {
+  /**
+   * Add a command item to the launcher, and trigger re-render event for parent
+   * widget.
+   *
+   * @param options - The specification options for a launcher item.
+   *
+   * @returns A disposable that will remove the item from Launcher, and trigger
+   * re-render event for parent widget.
+   *
+   */
+  add(options: ILauncher.IItemOptions): IDisposable;
+}
+
+/**
+ * The namespace for `ILauncher` class statics.
+ */
+export namespace ILauncher {
+  /**
+   * An interface for the launcher model
+   */
+  export interface IModel extends ILauncher, VDomRenderer.IModel {
+    /**
+     * Return an iterator of launcher items.
+     */
+    items(): IterableIterator<ILauncher.IItemOptions>;
+  }
+
+  /**
+   * The options used to create a Launcher.
+   */
+  export interface IOptions {
+    /**
+     * The model of the launcher.
+     */
+    model: IModel;
+
+    /**
+     * The cwd of the launcher.
+     */
+    cwd: string;
+
+    /**
+     * The command registry used by the launcher.
+     */
+    commands: CommandRegistry;
+
+    /**
+     * The application language translation.
+     */
+    translator?: ITranslator;
+
+    /**
+     * The callback used when an item is launched.
+     */
+    callback: (widget: Widget) => void;
+  }
+
+  /**
+   * The options used to create a launcher item.
+   */
+  export interface IItemOptions {
+    /**
+     * The command ID for the launcher item.
+     *
+     * #### Notes
+     * If the command's `execute` method returns a `Widget` or
+     * a promise that resolves with a `Widget`, then that widget will
+     * replace the launcher in the same location of the application
+     * shell. If the `execute` method does something else
+     * (i.e., create a modal dialog), then the launcher will not be
+     * disposed.
+     */
+    command: string;
+
+    /**
+     * The arguments given to the command for
+     * creating the launcher item.
+     *
+     * ### Notes
+     * The launcher will also add the current working
+     * directory of the filebrowser in the `cwd` field
+     * of the args, which a command may use to create
+     * the activity with respect to the right directory.
+     */
+    args?: ReadonlyJSONObject;
+
+    /**
+     * The category for the launcher item.
+     *
+     * The default value is an empty string.
+     */
+    category?: string;
+
+    /**
+     * The rank for the launcher item.
+     *
+     * The rank is used when ordering launcher items for display. After grouping
+     * into categories, items are sorted in the following order:
+     *   1. Rank (lower is better)
+     *   3. Display Name (locale order)
+     *
+     * The default rank is `Infinity`.
+     */
+    rank?: number;
+
+    /**
+     * For items that have a kernel associated with them, the URL of the kernel
+     * icon.
+     *
+     * This is not a CSS class, but the URL that points to the icon in the kernel
+     * spec.
+     */
+    kernelIconUrl?: string;
+
+    /**
+     * Metadata about the item.  This can be used by the launcher to
+     * affect how the item is displayed.
+     */
+    metadata?: ReadonlyJSONObject;
+  }
+}
diff --git a/packages/launcher/src/index.tsx b/packages/launcher/src/widget.tsx
similarity index 70%
rename from packages/launcher/src/index.tsx
rename to packages/launcher/src/widget.tsx
index 37fe6fe4fd13..efb07332695d 100644
--- a/packages/launcher/src/index.tsx
+++ b/packages/launcher/src/widget.tsx
@@ -1,70 +1,36 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
-/**
- * @packageDocumentation
- * @module launcher
- */
 
-import {
-  showErrorMessage,
-  VDomModel,
-  VDomRenderer
-} from '@jupyterlab/apputils';
+import { showErrorMessage } from '@jupyterlab/apputils';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { classes, LabIcon } from '@jupyterlab/ui-components';
 import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  IIterator,
-  map,
-  toArray
-} from '@lumino/algorithm';
+  classes,
+  LabIcon,
+  VDomModel,
+  VDomRenderer
+} from '@jupyterlab/ui-components';
+import { ArrayExt, map } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
-import { ReadonlyJSONObject, Token } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { AttachedProperty } from '@lumino/properties';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
+import { ILauncher } from './tokens';
 
 /**
  * The class name added to Launcher instances.
  */
 const LAUNCHER_CLASS = 'jp-Launcher';
 
-/* tslint:disable */
-/**
- * The launcher token.
- */
-export const ILauncher = new Token<ILauncher>('@jupyterlab/launcher:ILauncher');
-/* tslint:enable */
-
-/**
- * The launcher interface.
- */
-export interface ILauncher {
-  /**
-   * Add a command item to the launcher, and trigger re-render event for parent
-   * widget.
-   *
-   * @param options - The specification options for a launcher item.
-   *
-   * @returns A disposable that will remove the item from Launcher, and trigger
-   * re-render event for parent widget.
-   *
-   */
-  add(options: ILauncher.IItemOptions): IDisposable;
-}
-
 /**
  * LauncherModel keeps track of the path to working directory and has a list of
  * LauncherItems, which the Launcher will render.
  */
-export class LauncherModel extends VDomModel implements ILauncher {
+export class LauncherModel extends VDomModel implements ILauncher.IModel {
   /**
    * Add a command item to the launcher, and trigger re-render event for parent
    * widget.
@@ -91,8 +57,8 @@ export class LauncherModel extends VDomModel implements ILauncher {
   /**
    * Return an iterator of launcher items.
    */
-  items(): IIterator<ILauncher.IItemOptions> {
-    return new ArrayIterator(this.itemsList);
+  items(): IterableIterator<ILauncher.IItemOptions> {
+    return this.itemsList[Symbol.iterator]();
   }
 
   protected itemsList: ILauncher.IItemOptions[] = [];
@@ -101,7 +67,7 @@ export class LauncherModel extends VDomModel implements ILauncher {
 /**
  * A virtual-DOM-based widget for the Launcher.
  */
-export class Launcher extends VDomRenderer<LauncherModel> {
+export class Launcher extends VDomRenderer<ILauncher.IModel> {
   /**
    * Construct a new launcher widget.
    */
@@ -157,13 +123,13 @@ export class Launcher extends VDomRenderer<LauncherModel> {
 
     // First group-by categories
     const categories = Object.create(null);
-    each(this.model.items(), (item, index) => {
+    for (const item of this.model.items()) {
       const cat = item.category || this._trans.__('Other');
       if (!(cat in categories)) {
         categories[cat] = [];
       }
       categories[cat].push(item);
-    });
+    }
     // Within each category sort by rank
     for (const cat in categories) {
       categories[cat] = categories[cat].sort(
@@ -180,9 +146,9 @@ export class Launcher extends VDomRenderer<LauncherModel> {
     // Assemble the final ordered list of categories, beginning with
     // KNOWN_CATEGORIES.
     const orderedCategories: string[] = [];
-    each(knownCategories, (cat, index) => {
+    for (const cat of knownCategories) {
       orderedCategories.push(cat);
-    });
+    }
     for (const cat in categories) {
       if (knownCategories.indexOf(cat) === -1) {
         orderedCategories.push(cat);
@@ -197,12 +163,8 @@ export class Launcher extends VDomRenderer<LauncherModel> {
       const item = categories[cat][0] as ILauncher.IItemOptions;
       const args = { ...item.args, cwd: this.cwd };
       const kernel = kernelCategories.indexOf(cat) > -1;
-
-      // DEPRECATED: remove _icon when lumino 2.0 is adopted
-      // if icon is aliasing iconClass, don't use it
       const iconClass = this._commands.iconClass(item.command, args);
-      const _icon = this._commands.icon(item.command, args);
-      const icon = _icon === iconClass ? undefined : _icon;
+      const icon = this._commands.icon(item.command, args);
 
       if (cat in categories) {
         section = (
@@ -216,7 +178,7 @@ export class Launcher extends VDomRenderer<LauncherModel> {
               <h2 className="jp-Launcher-sectionTitle">{cat}</h2>
             </div>
             <div className="jp-Launcher-cardContainer">
-              {toArray(
+              {Array.from(
                 map(categories[cat], (item: ILauncher.IItemOptions) => {
                   return Card(
                     kernel,
@@ -255,106 +217,6 @@ export class Launcher extends VDomRenderer<LauncherModel> {
   private _pending = false;
   private _cwd = '';
 }
-
-/**
- * The namespace for `ILauncher` class statics.
- */
-export namespace ILauncher {
-  /**
-   * The options used to create a Launcher.
-   */
-  export interface IOptions {
-    /**
-     * The model of the launcher.
-     */
-    model: LauncherModel;
-
-    /**
-     * The cwd of the launcher.
-     */
-    cwd: string;
-
-    /**
-     * The command registry used by the launcher.
-     */
-    commands: CommandRegistry;
-
-    /**
-     * The application language translation.
-     */
-    translator?: ITranslator;
-
-    /**
-     * The callback used when an item is launched.
-     */
-    callback: (widget: Widget) => void;
-  }
-
-  /**
-   * The options used to create a launcher item.
-   */
-  export interface IItemOptions {
-    /**
-     * The command ID for the launcher item.
-     *
-     * #### Notes
-     * If the command's `execute` method returns a `Widget` or
-     * a promise that resolves with a `Widget`, then that widget will
-     * replace the launcher in the same location of the application
-     * shell. If the `execute` method does something else
-     * (i.e., create a modal dialog), then the launcher will not be
-     * disposed.
-     */
-    command: string;
-
-    /**
-     * The arguments given to the command for
-     * creating the launcher item.
-     *
-     * ### Notes
-     * The launcher will also add the current working
-     * directory of the filebrowser in the `cwd` field
-     * of the args, which a command may use to create
-     * the activity with respect to the right directory.
-     */
-    args?: ReadonlyJSONObject;
-
-    /**
-     * The category for the launcher item.
-     *
-     * The default value is an empty string.
-     */
-    category?: string;
-
-    /**
-     * The rank for the launcher item.
-     *
-     * The rank is used when ordering launcher items for display. After grouping
-     * into categories, items are sorted in the following order:
-     *   1. Rank (lower is better)
-     *   3. Display Name (locale order)
-     *
-     * The default rank is `Infinity`.
-     */
-    rank?: number;
-
-    /**
-     * For items that have a kernel associated with them, the URL of the kernel
-     * icon.
-     *
-     * This is not a CSS class, but the URL that points to the icon in the kernel
-     * spec.
-     */
-    kernelIconUrl?: string;
-
-    /**
-     * Metadata about the item.  This can be used by the launcher to
-     * affect how the item is displayed.
-     */
-    metadata?: ReadonlyJSONObject;
-  }
-}
-
 /**
  * A pure tsx component for a launcher card.
  *
@@ -402,7 +264,6 @@ function Card(
         launcher.pending = false;
         if (value instanceof Widget) {
           launcherCallback(value);
-          launcher.dispose();
         }
       })
       .catch(err => {
@@ -420,11 +281,8 @@ function Card(
     }
   };
 
-  // DEPRECATED: remove _icon when lumino 2.0 is adopted
-  // if icon is aliasing iconClass, don't use it
   const iconClass = commands.iconClass(command, args);
-  const _icon = commands.icon(command, args);
-  const icon = _icon === iconClass ? undefined : _icon;
+  const icon = commands.icon(command, args);
 
   // Return the VDOM element.
   return (
diff --git a/packages/launcher/style/base.css b/packages/launcher/style/base.css
index a2184b95ab86..252e98c22f1e 100644
--- a/packages/launcher/style/base.css
+++ b/packages/launcher/style/base.css
@@ -6,13 +6,13 @@
 /* Private CSS variables */
 
 :root {
-  --jp-private-launcher-top-padding: 16px;
-  --jp-private-launcher-side-padding: 32px;
-  --jp-private-launcher-card-size: 100px;
-  --jp-private-launcher-card-label-height: 32px;
-  --jp-private-launcher-card-icon-height: 68px;
-  --jp-private-launcher-large-icon-size: 52px;
-  --jp-private-launcher-small-icon-size: 32px;
+  --jp-private-launcher-top-padding: 1.231em;
+  --jp-private-launcher-side-padding: 2.462em;
+  --jp-private-launcher-card-size: 7.692em;
+  --jp-private-launcher-card-label-height: 2.462em;
+  --jp-private-launcher-card-icon-height: 5.231em;
+  --jp-private-launcher-large-icon-size: 4em;
+  --jp-private-launcher-small-icon-size: 2.462em;
 }
 
 /* Launcher */
@@ -25,6 +25,7 @@
   box-sizing: border-box;
   min-width: 120px;
   min-height: 120px;
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
@@ -43,7 +44,7 @@
   font-size: var(--jp-ui-font-size2);
   font-weight: normal;
   color: var(--jp-ui-font-color1);
-  margin: 1em 0px;
+  margin: 1em 0;
 }
 
 .jp-Launcher-content {
@@ -68,17 +69,18 @@
   flex-direction: row;
   align-items: center;
   box-sizing: border-box;
+
   /* This is custom tuned to get the section header to align with the cards */
   margin-left: 5px;
   border-bottom: 1px solid var(--jp-border-color2);
-  padding-bottom: 0px;
+  padding-bottom: 0;
   margin-bottom: 8px;
 }
 
 .jp-Launcher-sectionTitle {
   font-size: var(--jp-ui-font-size2);
   font-weight: normal;
-  color: var(--jp-ui-font-color1);
+  color: var(--jp-ui-font-color0);
   box-sizing: border-box;
 }
 
@@ -98,9 +100,9 @@
   flex-direction: column;
   cursor: pointer;
   width: var(--jp-private-launcher-card-size);
-  height: var(--jp-private-launcher-card-size);
+  min-height: var(--jp-private-launcher-card-size);
   margin: 8px;
-  padding: 0px;
+  padding: 0;
   border: 1px solid var(--jp-border-color2);
   background: var(--jp-layout-color0);
   box-shadow: var(--jp-elevation-z2);
@@ -128,8 +130,8 @@
   width: 100%;
   height: var(--jp-private-launcher-card-icon-height);
   box-sizing: border-box;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
   display: flex;
   justify-content: center;
   align-items: center;
@@ -152,20 +154,21 @@
 
 .jp-LauncherCard-label {
   width: 100%;
-  height: var(--jp-private-launcher-card-label-height);
-  padding: 0 4px 4px 4px;
+  min-height: var(--jp-private-launcher-card-label-height);
+  padding: 0 4px 4px;
   box-sizing: border-box;
   overflow: hidden;
 }
 
 .jp-LauncherCard-label p {
-  height: 28px;
+  min-height: 2.154em;
   word-break: break-word;
   text-align: center;
   color: var(--jp-ui-font-color1);
-  line-height: 14px;
-  font-size: 12px;
+  line-height: 1.077em;
+  font-size: calc(var(--jp-ui-font-size1) * 0.923);
   overflow: hidden;
+  margin: auto;
 }
 
 /* kernel icons */
diff --git a/packages/launcher/style/index.css b/packages/launcher/style/index.css
index 4f80f4f9b81e..38237a5e1956 100644
--- a/packages/launcher/style/index.css
+++ b/packages/launcher/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/logconsole-extension/package.json b/packages/logconsole-extension/package.json
index 521687eb38d8..259e93f46ec6 100644
--- a/packages/logconsole-extension/package.json
+++ b/packages/logconsole-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/logconsole-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Log Console Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -25,7 +25,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -33,24 +34,23 @@
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/logconsole": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/logconsole": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/logconsole-extension/schema/plugin.json b/packages/logconsole-extension/schema/plugin.json
index 48242d303cea..f73c1c79423c 100644
--- a/packages/logconsole-extension/schema/plugin.json
+++ b/packages/logconsole-extension/schema/plugin.json
@@ -7,7 +7,8 @@
         "id": "jp-mainmenu-view",
         "items": [
           {
-            "type": "separator"
+            "type": "separator",
+            "rank": 9.9
           },
           {
             "command": "logconsole:open",
diff --git a/packages/logconsole-extension/src/index.tsx b/packages/logconsole-extension/src/index.tsx
index b8e90b239a28..b996bfe8530f 100644
--- a/packages/logconsole-extension/src/index.tsx
+++ b/packages/logconsole-extension/src/index.tsx
@@ -12,10 +12,8 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import {
-  CommandToolbarButton,
   ICommandPalette,
   MainAreaWidget,
-  ReactWidget,
   WidgetTracker
 } from '@jupyterlab/apputils';
 import { IChangedArgs } from '@jupyterlab/coreutils';
@@ -25,7 +23,6 @@ import {
   LoggerRegistry,
   LogLevel
 } from '@jupyterlab/logconsole';
-import { INotebookTracker, NotebookPanel } from '@jupyterlab/notebook';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStatusBar } from '@jupyterlab/statusbar';
@@ -37,11 +34,13 @@ import {
 import {
   addIcon,
   clearIcon,
+  CommandToolbarButton,
   HTMLSelect,
-  listIcon
+  listIcon,
+  ReactWidget
 } from '@jupyterlab/ui-components';
 import { UUID } from '@lumino/coreutils';
-import { DockLayout, Widget } from '@lumino/widgets';
+import { DockLayout } from '@lumino/widgets';
 import * as React from 'react';
 import { LogConsoleStatus } from './status';
 
@@ -63,8 +62,9 @@ namespace CommandIDs {
 const logConsolePlugin: JupyterFrontEndPlugin<ILoggerRegistry> = {
   activate: activateLogConsole,
   id: LOG_CONSOLE_PLUGIN_ID,
+  description: 'Provides the logger registry.',
   provides: ILoggerRegistry,
-  requires: [ILabShell, IRenderMimeRegistry, INotebookTracker, ITranslator],
+  requires: [ILabShell, IRenderMimeRegistry, ITranslator],
   optional: [ICommandPalette, ILayoutRestorer, ISettingRegistry, IStatusBar],
   autoStart: true
 };
@@ -76,7 +76,6 @@ function activateLogConsole(
   app: JupyterFrontEnd,
   labShell: ILabShell,
   rendermime: IRenderMimeRegistry,
-  nbtracker: INotebookTracker,
   translator: ITranslator,
   palette: ICommandPalette | null,
   restorer: ILayoutRestorer | null,
@@ -128,12 +127,7 @@ function activateLogConsole(
   const createLogConsoleWidget = (options: ILogConsoleOptions = {}) => {
     logConsolePanel = new LogConsolePanel(loggerRegistry, translator);
 
-    logConsolePanel.source =
-      options.source !== undefined
-        ? options.source
-        : nbtracker.currentWidget
-        ? nbtracker.currentWidget.context.path
-        : null;
+    logConsolePanel.source = options.source ?? labShell.currentPath ?? null;
 
     logConsoleWidget = new MainAreaWidget({ content: logConsolePanel });
     logConsoleWidget.addClass('jp-LogConsole');
@@ -151,6 +145,13 @@ function activateLogConsole(
       id: CommandIDs.clear
     });
 
+    const notifyCommands = () => {
+      app.commands.notifyCommandChanged(CommandIDs.addCheckpoint);
+      app.commands.notifyCommandChanged(CommandIDs.clear);
+      app.commands.notifyCommandChanged(CommandIDs.open);
+      app.commands.notifyCommandChanged(CommandIDs.setLevel);
+    };
+
     logConsoleWidget.toolbar.addItem(
       'lab-log-console-add-checkpoint',
       addCheckpointButton
@@ -163,7 +164,7 @@ function activateLogConsole(
     );
 
     logConsolePanel.sourceChanged.connect(() => {
-      app.commands.notifyCommandChanged();
+      notifyCommands();
     });
 
     logConsolePanel.sourceDisplayed.connect((panel, { source, version }) => {
@@ -173,18 +174,19 @@ function activateLogConsole(
     logConsoleWidget.disposed.connect(() => {
       logConsoleWidget = null;
       logConsolePanel = null;
-      app.commands.notifyCommandChanged();
+      notifyCommands();
     });
 
     app.shell.add(logConsoleWidget, 'down', {
       ref: options.ref,
-      mode: options.insertMode
+      mode: options.insertMode,
+      type: 'Log Console'
     });
     void tracker.add(logConsoleWidget);
     app.shell.activateById(logConsoleWidget.id);
 
     logConsoleWidget.update();
-    app.commands.notifyCommandChanged();
+    notifyCommands();
   };
 
   app.commands.addCommand(CommandIDs.open, {
@@ -233,7 +235,9 @@ function activateLogConsole(
     },
     isEnabled: () => !!logConsolePanel && logConsolePanel.source !== null,
     label: args =>
-      trans.__('Set Log Level to %1', toTitleCase(args.level as string))
+      args['level']
+        ? trans.__('Set Log Level to %1', toTitleCase(args.level as string))
+        : trans.__('Set log level to `level`.')
   });
 
   if (palette) {
@@ -251,18 +255,7 @@ function activateLogConsole(
     });
   }
 
-  function setSource(newValue: Widget | null) {
-    if (logConsoleWidget && newValue === logConsoleWidget) {
-      // Do not change anything if we are just focusing on ourselves
-      return;
-    }
-
-    let source: string | null;
-    if (newValue && nbtracker.has(newValue)) {
-      source = (newValue as NotebookPanel).context.path;
-    } else {
-      source = null;
-    }
+  function setSource(source: string | null) {
     if (logConsolePanel) {
       logConsolePanel.source = source;
     }
@@ -271,8 +264,10 @@ function activateLogConsole(
   void app.restored.then(() => {
     // Set source only after app is restored in order to allow restorer to
     // restore previous source first, which may set the renderer
-    setSource(labShell.currentWidget);
-    labShell.currentChanged.connect((_, { newValue }) => setSource(newValue));
+    labShell.currentPathChanged.connect((_, { newValue }) =>
+      setSource(newValue)
+    );
+    setSource(labShell.currentPath ?? null);
   });
 
   if (settingRegistry) {
@@ -302,11 +297,11 @@ function activateLogConsole(
  */
 export class LogLevelSwitcher extends ReactWidget {
   /**
-   * Construct a new cell type switcher.
+   * Construct a new log level switcher.
    */
   constructor(widget: LogConsolePanel, translator?: ITranslator) {
     super();
-    this.translator = translator || nullTranslator;
+    this.translator = translator ?? nullTranslator;
     this._trans = this.translator.load('jupyterlab');
     this.addClass('jp-LogConsole-toolbarLogLevel');
     this._logConsole = widget;
@@ -351,7 +346,7 @@ export class LogLevelSwitcher extends ReactWidget {
     }
   };
 
-  render() {
+  render(): JSX.Element {
     const logger = this._logConsole.logger;
     return (
       <>
diff --git a/packages/logconsole-extension/src/status.tsx b/packages/logconsole-extension/src/status.tsx
index 82e90202b3c8..80c31e61d7c6 100644
--- a/packages/logconsole-extension/src/status.tsx
+++ b/packages/logconsole-extension/src/status.tsx
@@ -1,15 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
 import {
   IContentChange,
   ILogger,
   ILoggerRegistry
 } from '@jupyterlab/logconsole';
-import { GroupItem, interactiveItem, TextItem } from '@jupyterlab/statusbar';
+import { GroupItem, TextItem } from '@jupyterlab/statusbar';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { listIcon } from '@jupyterlab/ui-components';
+import { listIcon, VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import { Signal } from '@lumino/signaling';
 import React from 'react';
 
@@ -93,14 +92,14 @@ export class LogConsoleStatus extends VDomRenderer<LogConsoleStatus.Model> {
     super(new LogConsoleStatus.Model(options.loggerRegistry));
     this.translator = options.translator || nullTranslator;
     this._handleClick = options.handleClick;
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
     this.addClass('jp-LogConsoleStatusItem');
   }
 
   /**
    * Render the log console status item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (this.model === null || this.model.version === 0) {
       return null;
     }
@@ -270,7 +269,7 @@ export namespace LogConsoleStatus {
      * This will also update the last notified version so that the last
      * notified version is always at least the last displayed version.
      */
-    sourceDisplayed(source: string | null, version: number | null) {
+    sourceDisplayed(source: string | null, version: number | null): void {
       if (source === null || version === null) {
         return;
       }
@@ -295,7 +294,7 @@ export namespace LogConsoleStatus {
      * @param source - The name of the log source.
      * @param version - The version of the log.
      */
-    sourceNotified(source: string | null, version: number) {
+    sourceNotified(source: string | null, version: number): void {
       if (source === null) {
         return;
       }
diff --git a/packages/logconsole-extension/style/base.css b/packages/logconsole-extension/style/base.css
index f72e4945e297..45723b1ac5b4 100644
--- a/packages/logconsole-extension/style/base.css
+++ b/packages/logconsole-extension/style/base.css
@@ -7,10 +7,12 @@
   0% {
     background-color: var(--jp-brand-color1);
   }
+
   50% {
     color: unset;
     background-color: unset;
   }
+
   100% {
     background-color: var(--jp-brand-color1);
   }
@@ -24,22 +26,21 @@
   background-color: var(--jp-brand-color1);
 }
 
-/* Need to be very specific to override the typestyle styles on status bar components */
+/* Override semi-transparent white with opaque white for higher contrast */
 .jp-LogConsoleStatusItem.jp-mod-selected,
-.jp-LogConsoleStatusItem.jp-mod-selected div,
-.jp-LogConsoleStatusItem.jp-mod-selected div span {
+.jp-LogConsoleStatusItem.jp-mod-selected .jp-StatusBar-TextItem {
   color: white;
 }
 
 .jp-LogConsole .jp-ClearIcon {
   transform: rotate(90deg);
   margin-top: -1px;
-  padding: 0px 8px;
+  padding: 0 8px;
 }
 
 .jp-Toolbar-item.jp-LogConsole-toolbarLogLevel {
   align-items: center;
-  padding: 0px 6px;
+  padding: 0 6px;
 }
 
 /* Matches the disabled style elsewhere in JupyterLab */
diff --git a/packages/logconsole-extension/style/index.css b/packages/logconsole-extension/style/index.css
index da2c1dc3bf1e..fed8979ac191 100644
--- a/packages/logconsole-extension/style/index.css
+++ b/packages/logconsole-extension/style/index.css
@@ -6,11 +6,9 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
+@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/logconsole/style/index.css');
-@import url('~@jupyterlab/notebook/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/logconsole-extension/style/index.js b/packages/logconsole-extension/style/index.js
index 283dab50d6b7..88b7e7fe1256 100644
--- a/packages/logconsole-extension/style/index.js
+++ b/packages/logconsole-extension/style/index.js
@@ -6,11 +6,10 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
+import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/logconsole/style/index.js';
-import '@jupyterlab/notebook/style/index.js';
 
 import './base.css';
diff --git a/packages/logconsole-extension/tsconfig.json b/packages/logconsole-extension/tsconfig.json
index c078ea8d402c..ab46ac5f0953 100644
--- a/packages/logconsole-extension/tsconfig.json
+++ b/packages/logconsole-extension/tsconfig.json
@@ -18,9 +18,6 @@
     {
       "path": "../logconsole"
     },
-    {
-      "path": "../notebook"
-    },
     {
       "path": "../rendermime"
     },
diff --git a/packages/logconsole/.vscode/launch.json b/packages/logconsole/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/logconsole/.vscode/launch.json
+++ b/packages/logconsole/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/logconsole/babel.config.js b/packages/logconsole/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/logconsole/babel.config.js
+++ b/packages/logconsole/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/logconsole/jest.config.js b/packages/logconsole/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/logconsole/jest.config.js
+++ b/packages/logconsole/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/logconsole/package.json b/packages/logconsole/package.json
index f9edbc0cab3b..2b9167f47309 100644
--- a/packages/logconsole/package.json
+++ b/packages/logconsole/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/logconsole",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Log Console",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,7 +24,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,30 +33,29 @@
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/outputarea": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/outputarea": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/logconsole/src/logger.ts b/packages/logconsole/src/logger.ts
index 36efb9c4dbe6..e549cc74697d 100644
--- a/packages/logconsole/src/logger.ts
+++ b/packages/logconsole/src/logger.ts
@@ -106,7 +106,8 @@ class LogConsoleModelContentFactory extends OutputAreaModel.ContentFactory {
  */
 export class LoggerOutputAreaModel
   extends OutputAreaModel
-  implements ILoggerOutputAreaModel {
+  implements ILoggerOutputAreaModel
+{
   constructor({ maxLength, ...options }: LoggerOutputAreaModel.IOptions) {
     super(options);
     this.maxLength = maxLength;
@@ -209,7 +210,7 @@ export class Logger implements ILogger {
    * Oldest entries will be trimmed to ensure the length is at most
    * `.maxLength`.
    */
-  get maxLength() {
+  get maxLength(): number {
     return this.outputAreaModel.maxLength;
   }
   set maxLength(value: number) {
@@ -301,7 +302,7 @@ export class Logger implements ILogger {
    *
    * @param log - The output to be logged.
    */
-  log(log: ILogPayload) {
+  log(log: ILogPayload): void {
     // Filter by our current log level
     if (
       Private.LogLevel[log.level as keyof typeof Private.LogLevel] <
@@ -345,7 +346,7 @@ export class Logger implements ILogger {
   /**
    * Clear all outputs logged.
    */
-  clear() {
+  clear(): void {
     this.outputAreaModel.clear(false);
     this._contentChanged.emit('clear');
   }
@@ -353,7 +354,7 @@ export class Logger implements ILogger {
   /**
    * Add a checkpoint to the log.
    */
-  checkpoint() {
+  checkpoint(): void {
     this._log({
       output: {
         output_type: 'display_data',
@@ -368,14 +369,14 @@ export class Logger implements ILogger {
   /**
    * Whether the logger is disposed.
    */
-  get isDisposed() {
+  get isDisposed(): boolean {
     return this._isDisposed;
   }
 
   /**
    * Dispose the logger.
    */
-  dispose() {
+  dispose(): void {
     if (this.isDisposed) {
       return;
     }
diff --git a/packages/logconsole/src/registry.ts b/packages/logconsole/src/registry.ts
index 81779ca03ac7..8de762593bef 100644
--- a/packages/logconsole/src/registry.ts
+++ b/packages/logconsole/src/registry.ts
@@ -76,14 +76,14 @@ export class LoggerRegistry implements ILoggerRegistry {
   /**
    * Whether the register is disposed.
    */
-  get isDisposed() {
+  get isDisposed(): boolean {
     return this._isDisposed;
   }
 
   /**
    * Dispose the registry and all loggers.
    */
-  dispose() {
+  dispose(): void {
     if (this.isDisposed) {
       return;
     }
diff --git a/packages/logconsole/src/tokens.ts b/packages/logconsole/src/tokens.ts
index 95e9aac430dd..50c3399a0f47 100644
--- a/packages/logconsole/src/tokens.ts
+++ b/packages/logconsole/src/tokens.ts
@@ -9,12 +9,12 @@ import { Token } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
 
-/* tslint:disable */
 /**
  * The Logger Registry token.
  */
 export const ILoggerRegistry = new Token<ILoggerRegistry>(
-  '@jupyterlab/logconsole:ILoggerRegistry'
+  '@jupyterlab/logconsole:ILoggerRegistry',
+  'A service providing a logger infrastructure.'
 );
 
 export type ILoggerRegistryChange = 'append';
diff --git a/packages/logconsole/src/widget.ts b/packages/logconsole/src/widget.ts
index 7706fb1dca57..a4c38c1ef821 100644
--- a/packages/logconsole/src/widget.ts
+++ b/packages/logconsole/src/widget.ts
@@ -159,7 +159,7 @@ export class ScrollingWidget<T extends Widget> extends Widget {
     return this._content;
   }
 
-  protected onAfterAttach(msg: Message) {
+  protected onAfterAttach(msg: Message): void {
     super.onAfterAttach(msg);
     // defer so content gets a chance to attach first
     requestAnimationFrame(() => {
@@ -179,13 +179,13 @@ export class ScrollingWidget<T extends Widget> extends Widget {
     }
   }
 
-  protected onBeforeDetach(msg: Message) {
+  protected onBeforeDetach(msg: Message): void {
     if (this._observer) {
       this._observer.disconnect();
     }
   }
 
-  protected onAfterShow(msg: Message) {
+  protected onAfterShow(msg: Message): void {
     if (this._tracking) {
       this._sentinel.scrollIntoView();
     }
@@ -321,7 +321,7 @@ export class LogConsolePanel extends StackedPanel {
     this._handlePlaceholder();
   }
 
-  protected onAfterShow(msg: Message) {
+  protected onAfterShow(msg: Message): void {
     super.onAfterShow(msg);
     if (this.source !== null) {
       this._sourceDisplayed.emit({
diff --git a/packages/logconsole/style/index.css b/packages/logconsole/style/index.css
index ee78600639b5..1e1cc447a47d 100644
--- a/packages/logconsole/style/index.css
+++ b/packages/logconsole/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/outputarea/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/logconsole/tsconfig.test.json b/packages/logconsole/tsconfig.test.json
index 46cd8867eba3..1c610d8cd5eb 100644
--- a/packages/logconsole/tsconfig.test.json
+++ b/packages/logconsole/tsconfig.test.json
@@ -24,25 +24,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../outputarea"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/docprovider-extension/package.json b/packages/lsp-extension/package.json
similarity index 58%
rename from packages/docprovider-extension/package.json
rename to packages/lsp-extension/package.json
index 5e41237fda12..c916ae1894a2 100644
--- a/packages/docprovider-extension/package.json
+++ b/packages/lsp-extension/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "@jupyterlab/docprovider-extension",
-  "version": "3.6.6",
-  "description": "JupyterLab - Document Provider Extension",
+  "name": "@jupyterlab/lsp-extension",
+  "version": "4.0.8",
+  "description": "",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
     "url": "https://github.com/jupyterlab/jupyterlab/issues"
@@ -26,30 +26,38 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
+    "build:all": "npm run build",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "watch": "tsc -w --listEmittedFiles"
+    "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docprovider": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/running": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@rjsf/utils": "^5.1.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
   },
   "jupyterlab": {
-    "extension": true
+    "extension": true,
+    "schemaDir": "schema"
   },
   "styleModule": "style/index.js"
 }
diff --git a/packages/lsp-extension/schema/plugin.json b/packages/lsp-extension/schema/plugin.json
new file mode 100644
index 000000000000..b6c22824cc0d
--- /dev/null
+++ b/packages/lsp-extension/schema/plugin.json
@@ -0,0 +1,69 @@
+{
+  "jupyter.lab.setting-icon": "ui-components:code-check",
+  "jupyter.lab.setting-icon-label": "Language integration",
+  "jupyter.lab.transform": true,
+  "title": "Language Servers (Experimental)",
+  "description": "Language Server Protocol settings.",
+  "type": "object",
+  "definitions": {
+    "languageServer": {
+      "type": "object",
+      "default": {
+        "configuration": {},
+        "rank": 50
+      },
+      "properties": {
+        "configuration": {
+          "title": "Language Server Configurations",
+          "description": "Configuration to be sent to language server over LSP when initialized: see the specific language server's documentation for more",
+          "type": "object",
+          "default": {},
+          "patternProperties": {
+            ".*": {
+              "type": ["number", "string", "boolean", "object", "array"]
+            }
+          },
+          "additionalProperties": true
+        },
+        "rank": {
+          "title": "Rank of the server",
+          "description": "When multiple servers match specific document/language, the server with the highest rank will be used",
+          "type": "number",
+          "default": 50,
+          "minimum": 1
+        }
+      }
+    }
+  },
+  "properties": {
+    "activate": {
+      "title": "Activate",
+      "description": "Enable or disable the language server services.",
+      "enum": ["off", "on"],
+      "default": "off"
+    },
+    "languageServers": {
+      "title": "Language Server",
+      "description": "Language-server specific configuration, keyed by implementation",
+      "type": "object",
+      "default": {},
+      "patternProperties": {
+        ".*": {
+          "$ref": "#/definitions/languageServer"
+        }
+      }
+    },
+    "setTrace": {
+      "title": "Ask servers to send trace notifications",
+      "enum": ["off", "messages", "verbose"],
+      "default": "off",
+      "description": "Whether to ask server to send logs with execution trace (for debugging). Accepted values are: \"off\", \"messages\", \"verbose\". Servers are allowed to ignore this request."
+    },
+    "logAllCommunication": {
+      "title": "Log communication",
+      "type": "boolean",
+      "default": false,
+      "description": "Enable or disable the logging feature of the language servers."
+    }
+  }
+}
diff --git a/packages/lsp-extension/src/index.ts b/packages/lsp-extension/src/index.ts
new file mode 100644
index 000000000000..fc97ba2b3502
--- /dev/null
+++ b/packages/lsp-extension/src/index.ts
@@ -0,0 +1,313 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module lsp-extension
+ */
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import {
+  CodeExtractorsManager,
+  DocumentConnectionManager,
+  FeatureManager,
+  ILSPCodeExtractorsManager,
+  ILSPConnection,
+  ILSPDocumentConnectionManager,
+  ILSPFeatureManager,
+  LanguageServerManager,
+  LanguageServersExperimental,
+  TextForeignCodeExtractor,
+  TLanguageServerConfigurations,
+  TLanguageServerId
+} from '@jupyterlab/lsp';
+import { IRunningSessionManagers, IRunningSessions } from '@jupyterlab/running';
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator } from '@jupyterlab/translation';
+import {
+  IFormRenderer,
+  IFormRendererRegistry,
+  LabIcon,
+  pythonIcon
+} from '@jupyterlab/ui-components';
+import { PartialJSONObject } from '@lumino/coreutils';
+import { Signal } from '@lumino/signaling';
+
+import { renderServerSetting } from './renderer';
+
+import type { FieldProps } from '@rjsf/utils';
+
+const plugin: JupyterFrontEndPlugin<ILSPDocumentConnectionManager> = {
+  activate,
+  id: '@jupyterlab/lsp-extension:plugin',
+  description: 'Provides the language server connection manager.',
+  requires: [ITranslator],
+  optional: [IRunningSessionManagers],
+  provides: ILSPDocumentConnectionManager,
+  autoStart: true
+};
+
+const featurePlugin: JupyterFrontEndPlugin<ILSPFeatureManager> = {
+  id: '@jupyterlab/lsp-extension:feature',
+  description: 'Provides the language server feature manager.',
+  activate: () => new FeatureManager(),
+  provides: ILSPFeatureManager,
+  autoStart: true
+};
+
+const settingsPlugin: JupyterFrontEndPlugin<void> = {
+  activate: activateSettings,
+  id: '@jupyterlab/lsp-extension:settings',
+  description: 'Provides the language server settings.',
+  requires: [ILSPDocumentConnectionManager, ISettingRegistry, ITranslator],
+  optional: [IFormRendererRegistry],
+  autoStart: true
+};
+
+const codeExtractorManagerPlugin: JupyterFrontEndPlugin<ILSPCodeExtractorsManager> =
+  {
+    id: ILSPCodeExtractorsManager.name,
+    description: 'Provides the code extractor manager.',
+    activate: app => {
+      const extractorManager = new CodeExtractorsManager();
+
+      const markdownCellExtractor = new TextForeignCodeExtractor({
+        language: 'markdown',
+        isStandalone: false,
+        file_extension: 'md',
+        cellType: ['markdown']
+      });
+      extractorManager.register(markdownCellExtractor, null);
+      const rawCellExtractor = new TextForeignCodeExtractor({
+        language: 'text',
+        isStandalone: false,
+        file_extension: 'txt',
+        cellType: ['raw']
+      });
+      extractorManager.register(rawCellExtractor, null);
+      return extractorManager;
+    },
+    provides: ILSPCodeExtractorsManager,
+    autoStart: true
+  };
+
+/**
+ * Activate the lsp plugin.
+ */
+function activate(
+  app: JupyterFrontEnd,
+  translator: ITranslator,
+  runningSessionManagers: IRunningSessionManagers | null
+): ILSPDocumentConnectionManager {
+  const languageServerManager = new LanguageServerManager({
+    settings: app.serviceManager.serverSettings
+  });
+  const connectionManager = new DocumentConnectionManager({
+    languageServerManager
+  });
+
+  // Add a sessions manager if the running extension is available
+  if (runningSessionManagers) {
+    addRunningSessionManager(
+      runningSessionManagers,
+      connectionManager,
+      translator
+    );
+  }
+
+  return connectionManager;
+}
+
+/**
+ * Activate the lsp settings plugin.
+ */
+function activateSettings(
+  app: JupyterFrontEnd,
+  connectionManager: ILSPDocumentConnectionManager,
+  settingRegistry: ISettingRegistry,
+  translator: ITranslator,
+  settingRendererRegistry: IFormRendererRegistry | null
+): void {
+  const LANGUAGE_SERVERS = 'languageServers';
+  const languageServerManager = connectionManager.languageServerManager;
+
+  const updateOptions = (settings: ISettingRegistry.ISettings) => {
+    const options = settings.composite as Required<LanguageServersExperimental>;
+    const languageServerSettings = (options.languageServers ||
+      {}) as TLanguageServerConfigurations;
+    if (options.activate === 'on' && !languageServerManager.isEnabled) {
+      languageServerManager.enable().catch(console.error);
+    } else if (options.activate === 'off' && languageServerManager.isEnabled) {
+      languageServerManager.disable();
+      return;
+    }
+    connectionManager.initialConfigurations = languageServerSettings;
+    // TODO: if priorities changed reset connections
+    connectionManager.updateConfiguration(languageServerSettings);
+    connectionManager.updateServerConfigurations(languageServerSettings);
+    connectionManager.updateLogging(
+      options.logAllCommunication,
+      options.setTrace
+    );
+  };
+
+  settingRegistry.transform(plugin.id, {
+    fetch: plugin => {
+      const schema = plugin.schema.properties!;
+      const defaultValue: { [key: string]: any } = {};
+      languageServerManager.sessions.forEach((_, key) => {
+        defaultValue[key] = { rank: 50, configuration: {} };
+      });
+
+      schema[LANGUAGE_SERVERS]['default'] = defaultValue;
+      return plugin;
+    },
+    compose: plugin => {
+      const properties = plugin.schema.properties!;
+      const user = plugin.data.user;
+
+      const serverDefaultSettings = properties[LANGUAGE_SERVERS][
+        'default'
+      ] as PartialJSONObject;
+      const serverUserSettings = user[LANGUAGE_SERVERS] as
+        | PartialJSONObject
+        | undefined;
+      let serverComposite = { ...serverDefaultSettings };
+      if (serverUserSettings) {
+        serverComposite = { ...serverComposite, ...serverUserSettings };
+      }
+      const composite: { [key: string]: any } = {
+        [LANGUAGE_SERVERS]: serverComposite
+      };
+      Object.entries(properties).forEach(([key, value]) => {
+        if (key !== LANGUAGE_SERVERS) {
+          if (key in user) {
+            composite[key] = user[key];
+          } else {
+            composite[key] = value.default;
+          }
+        }
+      });
+      plugin.data.composite = composite;
+      return plugin;
+    }
+  });
+  languageServerManager.sessionsChanged.connect(async () => {
+    await settingRegistry.load(plugin.id, true);
+  });
+
+  settingRegistry
+    .load(plugin.id)
+    .then(settings => {
+      updateOptions(settings);
+      settings.changed.connect(() => {
+        updateOptions(settings);
+      });
+      languageServerManager.disable();
+    })
+    .catch((reason: Error) => {
+      console.error(reason.message);
+    });
+
+  if (settingRendererRegistry) {
+    const renderer: IFormRenderer = {
+      fieldRenderer: (props: FieldProps) => {
+        return renderServerSetting(props, translator);
+      }
+    };
+    settingRendererRegistry.addRenderer(
+      `${plugin.id}.${LANGUAGE_SERVERS}`,
+      renderer
+    );
+  }
+}
+
+export class RunningLanguageServer implements IRunningSessions.IRunningItem {
+  constructor(
+    connection: ILSPConnection,
+    manager: ILSPDocumentConnectionManager
+  ) {
+    this._connection = new WeakSet([connection]);
+    this._manager = manager;
+    this._serverIdentifier = connection.serverIdentifier;
+    this._serverLanguage = connection.serverLanguage;
+  }
+  /**
+   * This is no-op because we do not do anything on server click event
+   */
+  open(): void {
+    /** no-op */
+  }
+  icon(): LabIcon {
+    return pythonIcon;
+  }
+  label(): string {
+    return `${this._serverIdentifier ?? ''} (${this._serverLanguage ?? ''})`;
+  }
+  shutdown(): void {
+    for (const [key, value] of this._manager.connections.entries()) {
+      if (this._connection.has(value)) {
+        const { uri } = this._manager.documents.get(key)!;
+        this._manager.unregisterDocument(uri);
+      }
+    }
+    this._manager.disconnect(this._serverIdentifier as TLanguageServerId);
+  }
+  private _connection: WeakSet<ILSPConnection>;
+  private _manager: ILSPDocumentConnectionManager;
+  private _serverIdentifier: string | undefined;
+  private _serverLanguage: string | undefined;
+}
+
+/**
+ * Add the running terminal manager to the running panel.
+ */
+function addRunningSessionManager(
+  managers: IRunningSessionManagers,
+  lsManager: ILSPDocumentConnectionManager,
+  translator: ITranslator
+) {
+  const trans = translator.load('jupyterlab');
+  const signal = new Signal<any, any>(lsManager);
+  lsManager.connected.connect(() => signal.emit(lsManager));
+  lsManager.disconnected.connect(() => signal.emit(lsManager));
+  lsManager.closed.connect(() => signal.emit(lsManager));
+  lsManager.documentsChanged.connect(() => signal.emit(lsManager));
+  let currentRunning: RunningLanguageServer[] = [];
+  managers.add({
+    name: trans.__('Language servers'),
+    running: () => {
+      const connections = new Set([...lsManager.connections.values()]);
+
+      currentRunning = [...connections].map(
+        conn => new RunningLanguageServer(conn, lsManager)
+      );
+      return currentRunning;
+    },
+    shutdownAll: () => {
+      currentRunning.forEach(item => {
+        item.shutdown();
+      });
+    },
+    refreshRunning: () => {
+      return void 0;
+    },
+    runningChanged: signal,
+    shutdownLabel: trans.__('Shut Down'),
+    shutdownAllLabel: trans.__('Shut Down All'),
+    shutdownAllConfirmationText: trans.__(
+      'Are you sure you want to permanently shut down all running language servers?'
+    )
+  });
+}
+/**
+ * Export the plugin as default.
+ */
+export default [
+  plugin,
+  featurePlugin,
+  settingsPlugin,
+  codeExtractorManagerPlugin
+];
diff --git a/packages/lsp-extension/src/renderer.tsx b/packages/lsp-extension/src/renderer.tsx
new file mode 100644
index 000000000000..5d4a81d29011
--- /dev/null
+++ b/packages/lsp-extension/src/renderer.tsx
@@ -0,0 +1,616 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
+import { closeIcon } from '@jupyterlab/ui-components';
+import { UUID } from '@lumino/coreutils';
+import { Debouncer } from '@lumino/polling';
+import React, { useState } from 'react';
+
+import type { FieldProps } from '@rjsf/utils';
+type TDict = { [key: string]: any };
+
+interface ISettingPropertyMap {
+  [key: string]: ISettingProperty;
+}
+interface ISettingProperty {
+  /**
+   * Name of setting property
+   */
+  property: string;
+  /**
+   * Type of setting property
+   */
+  type: 'boolean' | 'string' | 'number';
+  /**
+   * Value of setting property
+   */
+  value: any;
+}
+const SETTING_NAME = 'languageServers';
+const SERVER_SETTINGS = 'configuration';
+
+interface ISettingFormProps {
+  /**
+   * The translation bundle.
+   */
+  trans: TranslationBundle;
+
+  /**
+   * Callback to remove setting item.
+   */
+  removeSetting: (key: string) => void;
+
+  /**
+   * Callback to update the setting item.
+   */
+  updateSetting: Debouncer<void, any, [hash: string, newSetting: TDict]>;
+
+  /**
+   * Hash to differentiate the setting fields.
+   */
+  serverHash: string;
+
+  /**
+   *  Setting value.
+   */
+  settings: TDict;
+
+  /**
+   * Setting schema.
+   */
+  schema: TDict;
+}
+
+/**
+ * The React component of the setting field
+ */
+function BuildSettingForm(props: ISettingFormProps): JSX.Element {
+  const { [SERVER_SETTINGS]: serverSettingsSchema, ...otherSettingsSchema } =
+    props.schema;
+  const {
+    [SERVER_SETTINGS]: serverSettings,
+    serverName,
+    ...otherSettings
+  } = props.settings;
+
+  const [currentServerName, setCurrentServerName] =
+    useState<string>(serverName);
+
+  /**
+   * Callback on server name field change event
+   */
+  const onServerNameChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    props.updateSetting
+      .invoke(props.serverHash, {
+        serverName: e.target.value
+      })
+      .catch(console.error);
+    setCurrentServerName(e.target.value);
+  };
+
+  const serverSettingWithType: ISettingPropertyMap = {};
+  Object.entries(serverSettings).forEach(([key, value]) => {
+    const newProps: ISettingProperty = {
+      property: key,
+      type: typeof value as 'string' | 'number' | 'boolean',
+      value
+    };
+    serverSettingWithType[UUID.uuid4()] = newProps;
+  });
+
+  const [propertyMap, setPropertyMap] = useState<ISettingPropertyMap>(
+    serverSettingWithType
+  );
+
+  const defaultOtherSettings: TDict = {};
+
+  Object.entries(otherSettingsSchema).forEach(([key, value]) => {
+    if (key in otherSettings) {
+      defaultOtherSettings[key] = otherSettings[key];
+    } else {
+      defaultOtherSettings[key] = value['default'];
+    }
+  });
+
+  const [otherSettingsComposite, setOtherSettingsComposite] =
+    useState<TDict>(defaultOtherSettings);
+
+  /**
+   * Callback on additional setting field change event
+   */
+  const onOtherSettingsChange = (
+    property: string,
+    value: any,
+    type: string
+  ) => {
+    let settingValue = value;
+    if (type === 'number') {
+      settingValue = parseFloat(value);
+    }
+    const newProps = {
+      ...otherSettingsComposite,
+      [property]: settingValue
+    };
+    props.updateSetting.invoke(props.serverHash, newProps).catch(console.error);
+    setOtherSettingsComposite(newProps);
+  };
+
+  /**
+   * Callback on `Add property` button click event.
+   */
+  const addProperty = () => {
+    const hash = UUID.uuid4();
+    const newMap: ISettingPropertyMap = {
+      ...propertyMap,
+      [hash]: { property: '', type: 'string', value: '' }
+    };
+    const payload: TDict = {};
+    Object.values(newMap).forEach(value => {
+      payload[value.property] = value.value;
+    });
+    props.updateSetting
+      .invoke(props.serverHash, {
+        [SERVER_SETTINGS]: payload
+      })
+      .catch(console.error);
+    setPropertyMap(newMap);
+  };
+
+  /**
+   * Callback on `Remove property` button click event.
+   */
+  const removeProperty = (entryHash: string) => {
+    const newMap: ISettingPropertyMap = {};
+    Object.entries(propertyMap).forEach(([hash, value]) => {
+      if (hash !== entryHash) {
+        newMap[hash] = value;
+      }
+      const payload: TDict = {};
+      Object.values(newMap).forEach(value => {
+        payload[value.property] = value.value;
+      });
+      props.updateSetting
+        .invoke(props.serverHash, {
+          [SERVER_SETTINGS]: payload
+        })
+        .catch(console.error);
+      setPropertyMap(newMap);
+    });
+  };
+
+  /**
+   * Save setting to the setting registry on field change event.
+   */
+  const setProperty = (hash: string, property: ISettingProperty): void => {
+    if (hash in propertyMap) {
+      const newMap: ISettingPropertyMap = { ...propertyMap, [hash]: property };
+      const payload: TDict = {};
+      Object.values(newMap).forEach(value => {
+        payload[value.property] = value.value;
+      });
+      setPropertyMap(newMap);
+      props.updateSetting
+        .invoke(props.serverHash, {
+          [SERVER_SETTINGS]: payload
+        })
+        .catch(console.error);
+    }
+  };
+  const debouncedSetProperty = new Debouncer<
+    void,
+    any,
+    [hash: string, property: ISettingProperty]
+  >(setProperty);
+  return (
+    <div className="array-item">
+      <div className="form-group ">
+        <div className="jp-FormGroup-content">
+          <div className="jp-objectFieldWrapper">
+            <fieldset>
+              <div className="form-group small-field">
+                <div className="jp-modifiedIndicator jp-errorIndicator"></div>
+                <div className="jp-FormGroup-content">
+                  <h3 className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+                    {props.trans.__('Server name:')}
+                  </h3>
+                  <div className="jp-inputFieldWrapper jp-FormGroup-contentItem">
+                    <input
+                      className="form-control"
+                      type="text"
+                      required={true}
+                      value={currentServerName}
+                      onChange={e => {
+                        onServerNameChange(e);
+                      }}
+                    />
+                  </div>
+                  <div className="validationErrors">
+                    <div>
+                      <ul className="error-detail bs-callout bs-callout-info">
+                        <li className="text-danger">
+                          {props.trans.__('is a required property')}
+                        </li>
+                      </ul>
+                    </div>
+                  </div>
+                </div>
+              </div>
+              {Object.entries(otherSettingsSchema).map(
+                ([property, value], idx) => {
+                  return (
+                    <div
+                      key={`${idx}-${property}`}
+                      className="form-group small-field"
+                    >
+                      <div className="jp-FormGroup-content">
+                        <h3 className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+                          {value.title}
+                        </h3>
+                        <div className="jp-inputFieldWrapper jp-FormGroup-contentItem">
+                          <input
+                            className="form-control"
+                            placeholder=""
+                            type={value.type}
+                            value={otherSettingsComposite[property]}
+                            onChange={e =>
+                              onOtherSettingsChange(
+                                property,
+                                e.target.value,
+                                value.type
+                              )
+                            }
+                          />
+                        </div>
+                        <div className="jp-FormGroup-description">
+                          {value.description}
+                        </div>
+                        <div className="validationErrors"></div>
+                      </div>
+                    </div>
+                  );
+                }
+              )}
+              <fieldset>
+                <legend>{serverSettingsSchema['title']}</legend>
+                {Object.entries(propertyMap).map(([hash, property]) => {
+                  return (
+                    <PropertyFrom
+                      key={hash}
+                      hash={hash}
+                      property={property}
+                      removeProperty={removeProperty}
+                      setProperty={debouncedSetProperty}
+                    />
+                  );
+                })}
+                <span>{serverSettingsSchema['description']}</span>
+              </fieldset>
+            </fieldset>
+          </div>
+        </div>
+      </div>
+      <div className="jp-ArrayOperations">
+        <button className="jp-mod-styled jp-mod-reject" onClick={addProperty}>
+          {props.trans.__('Add property')}
+        </button>
+        <button
+          className="jp-mod-styled jp-mod-warn jp-FormGroup-removeButton"
+          onClick={() => props.removeSetting(props.serverHash)}
+        >
+          {props.trans.__('Remove server')}
+        </button>
+      </div>
+    </div>
+  );
+}
+
+function PropertyFrom(props: {
+  hash: string;
+  property: ISettingProperty;
+  removeProperty: (hash: string) => void;
+  setProperty: Debouncer<void, any, [hash: string, property: ISettingProperty]>;
+}): JSX.Element {
+  const [state, setState] = useState<{
+    property: string;
+    type: 'boolean' | 'string' | 'number';
+    value: any;
+  }>({ ...props.property });
+  const TYPE_MAP = { string: 'text', number: 'number', boolean: 'checkbox' };
+
+  const removeItem = () => {
+    props.removeProperty(props.hash);
+  };
+
+  const changeName = (newName: string) => {
+    const newState = { ...state, property: newName };
+    props.setProperty.invoke(props.hash, newState).catch(console.error);
+    setState(newState);
+  };
+
+  const changeValue = (
+    newValue: any,
+    type: 'string' | 'boolean' | 'number'
+  ) => {
+    let value = newValue;
+    if (type === 'number') {
+      value = parseFloat(newValue);
+    }
+    const newState = { ...state, value };
+    props.setProperty.invoke(props.hash, newState).catch(console.error);
+    setState(newState);
+  };
+
+  const changeType = (newType: 'boolean' | 'string' | 'number') => {
+    let value: string | boolean | number;
+    if (newType === 'boolean') {
+      value = false;
+    } else if (newType === 'number') {
+      value = 0;
+    } else {
+      value = '';
+    }
+    const newState = { ...state, type: newType, value };
+    setState(newState);
+    props.setProperty.invoke(props.hash, newState).catch(console.error);
+  };
+
+  return (
+    <div key={props.hash} className="form-group small-field">
+      <div className="jp-FormGroup-content jp-LSPExtension-FormGroup-content">
+        <input
+          className="form-control"
+          type="text"
+          required={true}
+          placeholder={'Property name'}
+          value={state.property}
+          onChange={e => {
+            changeName(e.target.value);
+          }}
+        />
+        <select
+          className="form-control"
+          value={state.type}
+          onChange={e =>
+            changeType(e.target.value as 'boolean' | 'string' | 'number')
+          }
+        >
+          <option value="string">String</option>
+          <option value="number">Number</option>
+          <option value="boolean">Boolean</option>
+        </select>
+        <input
+          className="form-control"
+          type={TYPE_MAP[state.type]}
+          required={false}
+          placeholder={'Property value'}
+          value={state.type !== 'boolean' ? state.value : undefined}
+          checked={state.type === 'boolean' ? state.value : undefined}
+          onChange={
+            state.type !== 'boolean'
+              ? e => changeValue(e.target.value, state.type)
+              : e => changeValue(e.target.checked, state.type)
+          }
+        />
+        <button className="jp-mod-minimal jp-Button" onClick={removeItem}>
+          <closeIcon.react />
+        </button>
+      </div>
+    </div>
+  );
+}
+
+/**
+ * Internal state of the setting component
+ */
+interface IState {
+  /**
+   * Title of the setting section
+   */
+  title?: string;
+  /**
+   * Description of the setting section
+   */
+  desc?: string;
+  /**
+   * Items of setting section
+   */
+  items: TDict;
+}
+interface IProps extends FieldProps {
+  translator: ITranslator;
+}
+
+/**
+ * React setting component
+ */
+class SettingRenderer extends React.Component<IProps, IState> {
+  constructor(props: IProps) {
+    super(props);
+    this._setting = props.formContext.settings;
+    this._trans = props.translator.load('jupyterlab');
+
+    const schema = this._setting.schema['definitions'] as TDict;
+
+    this._defaultSetting = schema['languageServer']['default'];
+    this._schema = schema['languageServer']['properties'];
+    const title = props.schema.title;
+    const desc = props.schema.description;
+    const settings: ISettingRegistry.ISettings = props.formContext.settings;
+    const compositeData = settings.get(SETTING_NAME).composite as TDict;
+
+    let items: TDict = {};
+    if (compositeData) {
+      Object.entries(compositeData).forEach(([key, value]) => {
+        if (value) {
+          const hash = UUID.uuid4();
+          items[hash] = { serverName: key, ...value };
+        }
+      });
+    }
+    this.state = { title, desc, items };
+    this._debouncedUpdateSetting = new Debouncer(this.updateSetting.bind(this));
+  }
+
+  /**
+   * Remove a setting item by its hash
+   *
+   * @param hash - hash of the item to be removed.
+   */
+  removeSetting = (hash: string): void => {
+    if (hash in this.state.items) {
+      const items: TDict = {};
+      for (const key in this.state.items) {
+        if (key !== hash) {
+          items[key] = this.state.items[key];
+        }
+      }
+      this.setState(
+        old => {
+          return { ...old, items };
+        },
+        () => {
+          this.saveServerSetting();
+        }
+      );
+    }
+  };
+
+  /**
+   * Update a setting item by its hash
+   *
+   * @param hash - hash of the item to be updated.
+   * @param newSetting - new setting value.
+   */
+  updateSetting = (hash: string, newSetting: TDict): void => {
+    if (hash in this.state.items) {
+      const items: TDict = {};
+      for (const key in this.state.items) {
+        if (key === hash) {
+          items[key] = { ...this.state.items[key], ...newSetting };
+        } else {
+          items[key] = this.state.items[key];
+        }
+      }
+      this.setState(
+        old => {
+          return { ...old, items };
+        },
+        () => {
+          this.saveServerSetting();
+        }
+      );
+    }
+  };
+
+  /**
+   * Add setting item to the setting component.
+   */
+  addServerSetting = (): void => {
+    let index = 0;
+    let key = 'newKey';
+    while (
+      Object.values(this.state.items)
+        .map(val => val.serverName)
+        .includes(key)
+    ) {
+      index += 1;
+      key = `newKey-${index}`;
+    }
+    this.setState(
+      old => ({
+        ...old,
+        items: {
+          ...old.items,
+          [UUID.uuid4()]: { ...this._defaultSetting, serverName: key }
+        }
+      }),
+      () => {
+        this.saveServerSetting();
+      }
+    );
+  };
+
+  /**
+   * Save the value of setting items to the setting registry.
+   */
+  saveServerSetting = () => {
+    const settings: TDict = {};
+    Object.values(this.state.items).forEach(item => {
+      const { serverName, ...setting } = item;
+      settings[serverName] = setting;
+    });
+    this._setting.set(SETTING_NAME, settings).catch(console.error);
+  };
+  render(): JSX.Element {
+    return (
+      <div>
+        <fieldset>
+          <legend>{this.state.title}</legend>
+          <p className="field-description">{this.state.desc}</p>
+          <div className="field field-array field-array-of-object">
+            {Object.entries(this.state.items).map(([hash, value], idx) => {
+              return (
+                <BuildSettingForm
+                  key={`${idx}-${hash}`}
+                  trans={this._trans}
+                  removeSetting={this.removeSetting}
+                  updateSetting={this._debouncedUpdateSetting}
+                  serverHash={hash}
+                  settings={value}
+                  schema={this._schema}
+                />
+              );
+            })}
+          </div>
+          <div>
+            <button
+              style={{ margin: 2 }}
+              className="jp-mod-styled jp-mod-reject"
+              onClick={this.addServerSetting}
+            >
+              {this._trans.__('Add server')}
+            </button>
+          </div>
+        </fieldset>
+      </div>
+    );
+  }
+
+  /**
+   * The setting registry.
+   */
+  private _setting: ISettingRegistry.ISettings;
+
+  /**
+   * The translation bundle.
+   */
+  private _trans: TranslationBundle;
+
+  /**
+   * Default setting value.
+   */
+  private _defaultSetting: TDict;
+
+  /**
+   * The setting schema.
+   */
+  private _schema: TDict;
+
+  private _debouncedUpdateSetting: Debouncer<
+    void,
+    any,
+    [hash: string, newSetting: TDict]
+  >;
+}
+
+/**
+ * Custom setting renderer for language server extension.
+ */
+export function renderServerSetting(
+  props: FieldProps,
+  translator: ITranslator
+): JSX.Element {
+  return <SettingRenderer {...props} translator={translator} />;
+}
diff --git a/packages/collaboration-extension/style/base.css b/packages/lsp-extension/style/base.css
similarity index 80%
rename from packages/collaboration-extension/style/base.css
rename to packages/lsp-extension/style/base.css
index 52eec10b9e8d..2c710dc52425 100644
--- a/packages/collaboration-extension/style/base.css
+++ b/packages/lsp-extension/style/base.css
@@ -3,7 +3,6 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-.jp-UserMenu-Spacer {
-  flex-grow: 1;
-  flex-shrink: 1;
+.jp-LSPExtension-FormGroup-content > select {
+  margin: 0 12px;
 }
diff --git a/packages/lsp-extension/style/index.css b/packages/lsp-extension/style/index.css
new file mode 100644
index 000000000000..e3cf1bc566f7
--- /dev/null
+++ b/packages/lsp-extension/style/index.css
@@ -0,0 +1,11 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+/* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/lsp/style/index.css');
+@import url('~@jupyterlab/running/style/index.css');
+@import url('./base.css');
diff --git a/packages/lsp-extension/style/index.js b/packages/lsp-extension/style/index.js
new file mode 100644
index 000000000000..880237ff55cf
--- /dev/null
+++ b/packages/lsp-extension/style/index.js
@@ -0,0 +1,12 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+/* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/lsp/style/index.js';
+import '@jupyterlab/running/style/index.js';
+
+import './base.css';
diff --git a/packages/celltags/tsconfig.json b/packages/lsp-extension/tsconfig.json
similarity index 66%
rename from packages/celltags/tsconfig.json
rename to packages/lsp-extension/tsconfig.json
index b8703e691baf..3e5ee632c0bd 100644
--- a/packages/celltags/tsconfig.json
+++ b/packages/lsp-extension/tsconfig.json
@@ -1,6 +1,6 @@
 {
+  "extends": "../../tsconfigbase",
   "compilerOptions": {
-    "strict": true,
     "outDir": "lib",
     "rootDir": "src"
   },
@@ -10,10 +10,13 @@
       "path": "../application"
     },
     {
-      "path": "../cells"
+      "path": "../lsp"
     },
     {
-      "path": "../notebook"
+      "path": "../running"
+    },
+    {
+      "path": "../settingregistry"
     },
     {
       "path": "../translation"
@@ -21,6 +24,5 @@
     {
       "path": "../ui-components"
     }
-  ],
-  "extends": "../../tsconfigbase"
+  ]
 }
diff --git a/packages/lsp-extension/typedoc.json b/packages/lsp-extension/typedoc.json
new file mode 100644
index 000000000000..d38981f9872a
--- /dev/null
+++ b/packages/lsp-extension/typedoc.json
@@ -0,0 +1,4 @@
+{
+  "out": "../../docs/api/lsp-extension",
+  "theme": "../../typedoc-theme"
+}
diff --git a/packages/lsp/babel.config.js b/packages/lsp/babel.config.js
new file mode 100644
index 000000000000..eb2198a956e7
--- /dev/null
+++ b/packages/lsp/babel.config.js
@@ -0,0 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/lsp/jest.config.js b/packages/lsp/jest.config.js
new file mode 100644
index 000000000000..cd234acbbdc0
--- /dev/null
+++ b/packages/lsp/jest.config.js
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
+module.exports = func(__dirname);
diff --git a/packages/lsp/package.json b/packages/lsp/package.json
new file mode 100644
index 000000000000..f60be4be63c9
--- /dev/null
+++ b/packages/lsp/package.json
@@ -0,0 +1,74 @@
+{
+  "name": "@jupyterlab/lsp",
+  "version": "4.0.8",
+  "description": "",
+  "homepage": "https://github.com/jupyterlab/jupyterlab",
+  "bugs": {
+    "url": "https://github.com/jupyterlab/jupyterlab/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jupyterlab/jupyterlab.git"
+  },
+  "license": "BSD-3-Clause",
+  "author": "Project Jupyter",
+  "sideEffects": [
+    "style/*.css",
+    "style/index.js"
+  ],
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "style": "style/index.css",
+  "directories": {
+    "lib": "lib/"
+  },
+  "files": [
+    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
+    "schema/*.json",
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
+  ],
+  "scripts": {
+    "build": "tsc -b",
+    "build:schema": "node ./schema.js",
+    "build:test": "tsc --build tsconfig.test.json",
+    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
+    "test": "jest",
+    "test:cov": "jest --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
+    "watch": "tsc -b --watch"
+  },
+  "resolutions": {
+    "vscode-languageserver-protocol": "^3.17.0"
+  },
+  "dependencies": {
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "lodash.mergewith": "^4.6.1",
+    "vscode-jsonrpc": "^6.0.0",
+    "vscode-languageserver-protocol": "^3.17.0",
+    "vscode-ws-jsonrpc": "~1.0.2"
+  },
+  "devDependencies": {
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/lodash.mergewith": "^4.6.1",
+    "jest": "^29.2.0",
+    "json-schema-to-typescript": "^8.0.0",
+    "rimraf": "~3.0.0",
+    "typescript": "~5.0.4"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "styleModule": "style/index.js"
+}
diff --git a/packages/lsp/schema.js b/packages/lsp/schema.js
new file mode 100644
index 000000000000..4a430c43a910
--- /dev/null
+++ b/packages/lsp/schema.js
@@ -0,0 +1,110 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+const childProcess = require('child_process');
+const json2ts = require('json-schema-to-typescript');
+const fs = require('fs');
+const prettier = require('prettier');
+
+const SCHEMA_PATH = 'src/schema.ts';
+const PLUGIN_PATH = 'src/plugin.ts';
+
+async function generateInterface(schemaPath, filepath) {
+  const bannerComment =
+    '// Copyright (c) Jupyter Development Team.\n// Distributed under the terms of the Modified BSD License.\n\n/* eslint-disable */ \n/**\n* This file was automatically generated by json-schema-to-typescript.\n* DO NOT MODIFY IT BY HAND. Instead, modify the source JSONSchema file,\n* and run jlpm build:schema to regenerate this file.\n*/';
+  const prettierConfig = {
+    singleQuote: true,
+    trailingComma: 'none',
+    arrowParens: 'avoid'
+  };
+
+  const content = await json2ts.compileFromFile(schemaPath, {
+    unreachableDefinitions: true,
+    bannerComment,
+    format: true,
+    style: {
+      singleQuote: true
+    }
+  });
+
+  const formatted = prettier.format(content, {
+    ...prettierConfig,
+    filepath
+  });
+  return formatted;
+}
+
+function getSchemaPath() {
+  const serverPackage = 'jupyter_lsp';
+  const schemaLocalPath = 'schema/schema.json';
+
+  const cmd = `python -c '
+try:
+    from importlib.resources import files
+except ImportError:
+    from importlib_resources import files
+print(files("${serverPackage}")/ "${schemaLocalPath}")
+  '`;
+  let schemaPath;
+  try {
+    const value = childProcess.execSync(cmd, {});
+    schemaPath = value
+      .toString()
+      .replace(/(\r\n|\n)$/, '')
+      .trim();
+  } catch {
+    schemaPath = null;
+  }
+  const pluginPath = '../lsp-extension/schema/plugin.json';
+  return { schemaPath, pluginPath };
+}
+
+function generateFile() {
+  const { schemaPath, pluginPath } = getSchemaPath();
+  let schemaContent = Promise.resolve(`
+  export type LanguageServerSession = any;
+  export type LanguageServerSpec = any;
+  export type ServerSpecProperties = any;
+    `);
+  if (schemaPath) {
+    schemaContent = generateInterface(schemaPath, SCHEMA_PATH);
+  }
+  let pluginContent = Promise.resolve(`
+  export type LanguageServer2 = any;
+  export type AskServersToSendTraceNotifications = any;
+    `);
+  if (pluginPath) {
+    pluginContent = generateInterface(pluginPath, PLUGIN_PATH);
+  }
+  return { schemaContent, pluginContent };
+}
+
+function writeFile() {
+  const { schemaContent, pluginContent } = generateFile();
+  pluginContent.then(content => fs.writeFileSync(PLUGIN_PATH, content));
+  schemaContent.then(content => fs.writeFileSync(SCHEMA_PATH, content));
+}
+
+async function verifyFile() {
+  const { schemaContent, pluginContent } = generateFile();
+  const currentSchema = fs.readFileSync(SCHEMA_PATH).toString();
+  const currentPlugin = fs.readFileSync(PLUGIN_PATH).toString();
+  const schemaContentString = await schemaContent;
+  const pluginContentString = await pluginContent;
+
+  return (
+    currentSchema === schemaContentString &&
+    currentPlugin === pluginContentString
+  );
+}
+
+if (require.main === module) {
+  const args = process.argv.slice(2);
+  if (args.length === 0) {
+    writeFile();
+  } else if (args[0] === 'check') {
+    verifyFile().then(ret => {
+      console.log(ret);
+    });
+  }
+}
diff --git a/packages/lsp/src/adapters/adapter.ts b/packages/lsp/src/adapters/adapter.ts
new file mode 100644
index 000000000000..621d91b07d42
--- /dev/null
+++ b/packages/lsp/src/adapters/adapter.ts
@@ -0,0 +1,689 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import mergeWith from 'lodash.mergewith';
+
+import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+import { JSONObject } from '@lumino/coreutils';
+import { IDisposable } from '@lumino/disposable';
+import { ISignal, Signal } from '@lumino/signaling';
+
+import { ClientCapabilities, LanguageIdentifier } from '../lsp';
+import { IVirtualPosition } from '../positioning';
+import {
+  Document,
+  IDocumentConnectionData,
+  ILSPCodeExtractorsManager,
+  ILSPDocumentConnectionManager,
+  ILSPFeatureManager,
+  ISocketConnectionOptions
+} from '../tokens';
+import { VirtualDocument } from '../virtual/document';
+
+type IButton = Dialog.IButton;
+const createButton = Dialog.createButton;
+
+/**
+ * The values should follow the https://microsoft.github.io/language-server-protocol/specification guidelines
+ */
+const MIME_TYPE_LANGUAGE_MAP: JSONObject = {
+  'text/x-rsrc': 'r',
+  'text/x-r-source': 'r',
+  // currently there are no LSP servers for IPython we are aware of
+  'text/x-ipython': 'python'
+};
+
+export interface IEditorChangedData {
+  /**
+   * The CM editor invoking the change event.
+   */
+  editor: Document.IEditor;
+}
+
+export interface IAdapterOptions {
+  /**
+   * The LSP document and connection manager instance.
+   */
+  connectionManager: ILSPDocumentConnectionManager;
+
+  /**
+   * The LSP feature manager instance.
+   */
+  featureManager: ILSPFeatureManager;
+
+  /**
+   * The LSP foreign code extractor manager.
+   */
+  foreignCodeExtractorsManager: ILSPCodeExtractorsManager;
+
+  /**
+   * The translator provider.
+   */
+  translator?: ITranslator;
+}
+
+/**
+ * Foreign code: low level adapter is not aware of the presence of foreign languages;
+ * it operates on the virtual document and must not attempt to infer the language dependencies
+ * as this would make the logic of inspections caching impossible to maintain, thus the WidgetAdapter
+ * has to handle that, keeping multiple connections and multiple virtual documents.
+ */
+export abstract class WidgetLSPAdapter<T extends IDocumentWidget>
+  implements IDisposable
+{
+  // note: it could be using namespace/IOptions pattern,
+  // but I do not know how to make it work with the generic type T
+  // (other than using 'any' in the IOptions interface)
+  constructor(
+    public widget: T,
+    protected options: IAdapterOptions
+  ) {
+    this._connectionManager = options.connectionManager;
+    this._isConnected = false;
+    this._trans = (options.translator || nullTranslator).load('jupyterlab');
+    // set up signal connections
+    this.widget.context.saveState.connect(this.onSaveState, this);
+    this.connectionManager.closed.connect(this.onConnectionClosed, this);
+    this.widget.disposed.connect(this.dispose, this);
+  }
+
+  /**
+   * Check if the adapter is disposed
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+  /**
+   * Check if the document contains multiple editors
+   */
+  get hasMultipleEditors(): boolean {
+    return this.editors.length > 1;
+  }
+  /**
+   * Get the ID of the internal widget.
+   */
+  get widgetId(): string {
+    return this.widget.id;
+  }
+
+  /**
+   * Get the language identifier of the document
+   */
+  get language(): LanguageIdentifier {
+    // the values should follow https://microsoft.github.io/language-server-protocol/specification guidelines,
+    // see the table in https://microsoft.github.io/language-server-protocol/specification#textDocumentItem
+    if (MIME_TYPE_LANGUAGE_MAP.hasOwnProperty(this.mimeType)) {
+      return MIME_TYPE_LANGUAGE_MAP[this.mimeType] as string;
+    } else {
+      let withoutParameters = this.mimeType.split(';')[0];
+      let [type, subtype] = withoutParameters.split('/');
+      if (type === 'application' || type === 'text') {
+        if (subtype.startsWith('x-')) {
+          return subtype.substring(2);
+        } else {
+          return subtype;
+        }
+      } else {
+        return this.mimeType;
+      }
+    }
+  }
+
+  /**
+   * Signal emitted when the adapter is connected.
+   */
+  get adapterConnected(): ISignal<
+    WidgetLSPAdapter<T>,
+    IDocumentConnectionData
+  > {
+    return this._adapterConnected;
+  }
+
+  /**
+   * Signal emitted when the active editor have changed.
+   */
+  get activeEditorChanged(): ISignal<WidgetLSPAdapter<T>, IEditorChangedData> {
+    return this._activeEditorChanged;
+  }
+
+  /**
+   * Signal emitted when the adapter is disposed.
+   */
+  get disposed(): ISignal<WidgetLSPAdapter<T>, void> {
+    return this._disposed;
+  }
+
+  /**
+   * Signal emitted when the an editor is changed.
+   */
+  get editorAdded(): ISignal<WidgetLSPAdapter<T>, IEditorChangedData> {
+    return this._editorAdded;
+  }
+
+  /**
+   * Signal emitted when the an editor is removed.
+   */
+  get editorRemoved(): ISignal<WidgetLSPAdapter<T>, IEditorChangedData> {
+    return this._editorRemoved;
+  }
+
+  /**
+   * Get the inner HTMLElement of the document widget.
+   */
+  abstract get wrapperElement(): HTMLElement;
+
+  /**
+   * Get current path of the document.
+   */
+  abstract get documentPath(): string;
+
+  /**
+   * Get the mime type of the document.
+   */
+  abstract get mimeType(): string;
+
+  /**
+   * Get the file extension of the document.
+   */
+  abstract get languageFileExtension(): string | undefined;
+
+  /**
+   * Get the activated CM editor.
+   */
+  abstract get activeEditor(): Document.IEditor | undefined;
+
+  /**
+   * Get the list of CM editors in the document, there is only one editor
+   * in the case of file editor.
+   */
+  abstract get editors(): Document.ICodeBlockOptions[];
+
+  /**
+   * Promise that resolves once the adapter is initialized
+   */
+  abstract get ready(): Promise<void>;
+
+  /**
+   * The virtual document is connected or not
+   */
+  get isConnected(): boolean {
+    return this._isConnected;
+  }
+
+  /**
+   * The LSP document and connection manager instance.
+   */
+  get connectionManager(): ILSPDocumentConnectionManager {
+    return this._connectionManager;
+  }
+
+  /**
+   * The translator provider.
+   */
+  get trans(): TranslationBundle {
+    return this._trans;
+  }
+
+  /**
+   * Promise that resolves once the document is updated
+   */
+  get updateFinished(): Promise<void> {
+    return this._updateFinished;
+  }
+
+  /**
+   * Internal virtual document of the adapter.
+   */
+  get virtualDocument(): VirtualDocument | null {
+    return this._virtualDocument;
+  }
+
+  /**
+   * Callback on connection closed event.
+   */
+  onConnectionClosed(
+    _: ILSPDocumentConnectionManager,
+    { virtualDocument }: IDocumentConnectionData
+  ): void {
+    if (virtualDocument === this.virtualDocument) {
+      this.dispose();
+    }
+  }
+
+  /**
+   * Dispose the adapter.
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    this.disconnect();
+    this._virtualDocument = null;
+    this._disposed.emit();
+    Signal.clearData(this);
+  }
+
+  /**
+   * Disconnect virtual document from the language server.
+   */
+  disconnect(): void {
+    const uri = this.virtualDocument?.uri;
+    const { model } = this.widget.context;
+    if (uri) {
+      this.connectionManager.unregisterDocument(uri);
+    }
+    model.contentChanged.disconnect(this._onContentChanged, this);
+
+    // pretend that all editors were removed to trigger the disconnection of even handlers
+    // they will be connected again on new connection
+    for (let { ceEditor: editor } of this.editors) {
+      this._editorRemoved.emit({
+        editor: editor
+      });
+    }
+
+    this.virtualDocument?.dispose();
+  }
+
+  /**
+   * Update the virtual document.
+   */
+  updateDocuments(): Promise<void> {
+    if (this._isDisposed) {
+      console.warn('Cannot update documents: adapter disposed');
+      return Promise.reject('Cannot update documents: adapter disposed');
+    }
+    return this.virtualDocument!.updateManager.updateDocuments(this.editors);
+  }
+
+  /**
+   * Callback called on the document changed event.
+   */
+  documentChanged(
+    virtualDocument: VirtualDocument,
+    document: VirtualDocument,
+    isInit = false
+  ): void {
+    if (this._isDisposed) {
+      console.warn('Cannot swap document: adapter disposed');
+      return;
+    }
+
+    // TODO only send the difference, using connection.sendSelectiveChange()
+    let connection = this.connectionManager.connections.get(
+      virtualDocument.uri
+    );
+
+    if (!connection?.isReady) {
+      console.log('Skipping document update signal: connection not ready');
+      return;
+    }
+
+    connection.sendFullTextChange(
+      virtualDocument.value,
+      virtualDocument.documentInfo
+    );
+  }
+
+  /**
+   * (re)create virtual document using current path and language
+   */
+  protected abstract createVirtualDocument(): VirtualDocument;
+
+  /**
+   * Get the index of editor from the cursor position in the virtual
+   * document.
+   * @deprecated This is error-prone and will be removed in JupyterLab 5.0, use `getEditorIndex()` with `virtualDocument.getEditorAtVirtualLine(position)` instead.
+   *
+   * @param position - the position of cursor in the virtual document.
+   * @return - index of the virtual editor
+   */
+  abstract getEditorIndexAt(position: IVirtualPosition): number;
+
+  /**
+   * Get the index of input editor
+   *
+   * @param ceEditor - instance of the code editor
+   */
+  abstract getEditorIndex(ceEditor: Document.IEditor): number;
+
+  /**
+   * Get the wrapper of input editor.
+   *
+   * @param ceEditor
+   */
+  abstract getEditorWrapper(ceEditor: Document.IEditor): HTMLElement;
+
+  // equivalent to triggering didClose and didOpen, as per syncing specification,
+  // but also reloads the connection; used during file rename (or when it was moved)
+  protected reloadConnection(): void {
+    // ignore premature calls (before the editor was initialized)
+    if (this.virtualDocument === null) {
+      return;
+    }
+
+    // disconnect all existing connections (and dispose adapters)
+    this.disconnect();
+
+    // recreate virtual document using current path and language
+    // as virtual editor assumes it gets the virtual document at init,
+    // just dispose virtual editor (which disposes virtual document too)
+    // and re-initialize both virtual editor and document
+    this.initVirtual();
+
+    // reconnect
+    this.connectDocument(this.virtualDocument, true).catch(console.warn);
+  }
+
+  /**
+   * Callback on document saved event.
+   */
+  protected onSaveState(
+    context: DocumentRegistry.IContext<DocumentRegistry.IModel>,
+    state: DocumentRegistry.SaveState
+  ): void {
+    // ignore premature calls (before the editor was initialized)
+    if (this.virtualDocument === null) {
+      return;
+    }
+
+    if (state === 'completed') {
+      // note: must only be send to the appropriate connections as
+      // some servers (Julia) break if they receive save notification
+      // for a document that was not opened before, see:
+      // https://github.com/jupyter-lsp/jupyterlab-lsp/issues/490
+      const documentsToSave = [this.virtualDocument];
+
+      for (let virtualDocument of documentsToSave) {
+        let connection = this.connectionManager.connections.get(
+          virtualDocument.uri
+        );
+        if (!connection) {
+          continue;
+        }
+        connection.sendSaved(virtualDocument.documentInfo);
+        for (let foreign of virtualDocument.foreignDocuments.values()) {
+          documentsToSave.push(foreign);
+        }
+      }
+    }
+  }
+
+  /**
+   * Connect the virtual document with the language server.
+   */
+  protected async onConnected(data: IDocumentConnectionData): Promise<void> {
+    let { virtualDocument } = data;
+
+    this._adapterConnected.emit(data);
+    this._isConnected = true;
+
+    try {
+      await this.updateDocuments();
+    } catch (reason) {
+      console.warn('Could not update documents', reason);
+      return;
+    }
+
+    // refresh the document on the LSP server
+    this.documentChanged(virtualDocument, virtualDocument, true);
+
+    data.connection.serverNotifications['$/logTrace'].connect(
+      (connection, message) => {
+        console.log(
+          data.connection.serverIdentifier,
+          'trace',
+          virtualDocument.uri,
+          message
+        );
+      }
+    );
+
+    data.connection.serverNotifications['window/logMessage'].connect(
+      (connection, message) => {
+        console.log(connection.serverIdentifier + ': ' + message.message);
+      }
+    );
+
+    data.connection.serverNotifications['window/showMessage'].connect(
+      (connection, message) => {
+        void showDialog({
+          title: this.trans.__('Message from ') + connection.serverIdentifier,
+          body: message.message
+        });
+      }
+    );
+
+    data.connection.serverRequests['window/showMessageRequest'].setHandler(
+      async params => {
+        const actionItems = params.actions;
+        const buttons = actionItems
+          ? actionItems.map(action => {
+              return createButton({
+                label: action.title
+              });
+            })
+          : [createButton({ label: this.trans.__('Dismiss') })];
+        const result = await showDialog<IButton>({
+          title:
+            this.trans.__('Message from ') + data.connection.serverIdentifier,
+          body: params.message,
+          buttons: buttons
+        });
+        const choice = buttons.indexOf(result.button);
+        if (choice === -1) {
+          return null;
+        }
+        if (actionItems) {
+          return actionItems[choice];
+        }
+        return null;
+      }
+    );
+  }
+
+  /**
+   * Opens a connection for the document. The connection may or may
+   * not be initialized, yet, and depending on when this is called, the client
+   * may not be fully connected.
+   *
+   * @param virtualDocument a VirtualDocument
+   * @param sendOpen whether to open the document immediately
+   */
+  protected async connectDocument(
+    virtualDocument: VirtualDocument,
+    sendOpen = false
+  ): Promise<void> {
+    virtualDocument.foreignDocumentOpened.connect(
+      this.onForeignDocumentOpened,
+      this
+    );
+    const connectionContext = await this._connect(virtualDocument).catch(
+      console.error
+    );
+
+    if (connectionContext && connectionContext.connection) {
+      virtualDocument.changed.connect(this.documentChanged, this);
+      if (sendOpen) {
+        connectionContext.connection.sendOpenWhenReady(
+          virtualDocument.documentInfo
+        );
+      }
+    }
+  }
+
+  /**
+   * Create the virtual document using current path and language.
+   */
+  protected initVirtual(): void {
+    const { model } = this.widget.context;
+    this._virtualDocument?.dispose();
+    this._virtualDocument = this.createVirtualDocument();
+    model.contentChanged.connect(this._onContentChanged, this);
+  }
+
+  /**
+   * Handler for opening a document contained in a parent document. The assumption
+   * is that the editor already exists for this, and as such the document
+   * should be queued for immediate opening.
+   *
+   * @param host the VirtualDocument that contains the VirtualDocument in another language
+   * @param context information about the foreign VirtualDocument
+   */
+  protected async onForeignDocumentOpened(
+    _: VirtualDocument,
+    context: Document.IForeignContext
+  ): Promise<void> {
+    const { foreignDocument } = context;
+
+    await this.connectDocument(foreignDocument, true);
+
+    foreignDocument.foreignDocumentClosed.connect(
+      this._onForeignDocumentClosed,
+      this
+    );
+  }
+
+  /**
+   * Signal emitted when the adapter is connected.
+   */
+  protected _adapterConnected: Signal<
+    WidgetLSPAdapter<T>,
+    IDocumentConnectionData
+  > = new Signal(this);
+
+  /**
+   * Signal emitted when the active editor have changed.
+   */
+  protected _activeEditorChanged: Signal<
+    WidgetLSPAdapter<T>,
+    IEditorChangedData
+  > = new Signal(this);
+
+  /**
+   * Signal emitted when an editor is changed.
+   */
+  protected _editorAdded: Signal<WidgetLSPAdapter<T>, IEditorChangedData> =
+    new Signal(this);
+
+  /**
+   * Signal emitted when an editor is removed.
+   */
+  protected _editorRemoved: Signal<WidgetLSPAdapter<T>, IEditorChangedData> =
+    new Signal(this);
+
+  /**
+   * Signal emitted when the adapter is disposed.
+   */
+  protected _disposed: Signal<WidgetLSPAdapter<T>, void> = new Signal(this);
+
+  private _isDisposed = false;
+
+  private readonly _connectionManager: ILSPDocumentConnectionManager;
+  private readonly _trans: TranslationBundle;
+
+  private _isConnected: boolean;
+  private _updateFinished: Promise<void>;
+  private _virtualDocument: VirtualDocument | null = null;
+
+  /**
+   * Callback called when a foreign document is closed,
+   * the associated signals with this virtual document
+   * are disconnected.
+   */
+  private _onForeignDocumentClosed(
+    _: VirtualDocument,
+    context: Document.IForeignContext
+  ): void {
+    const { foreignDocument } = context;
+    foreignDocument.foreignDocumentClosed.disconnect(
+      this._onForeignDocumentClosed,
+      this
+    );
+    foreignDocument.foreignDocumentOpened.disconnect(
+      this.onForeignDocumentOpened,
+      this
+    );
+    foreignDocument.changed.disconnect(this.documentChanged, this);
+  }
+
+  /**
+   * Detect the capabilities for the document type then
+   * open the websocket connection with the language server.
+   */
+  private async _connect(virtualDocument: VirtualDocument) {
+    let language = virtualDocument.language;
+
+    let capabilities: ClientCapabilities = {
+      textDocument: {
+        synchronization: {
+          dynamicRegistration: true,
+          willSave: false,
+          didSave: true,
+          willSaveWaitUntil: false
+        }
+      },
+      workspace: {
+        didChangeConfiguration: {
+          dynamicRegistration: true
+        }
+      }
+    };
+    capabilities = mergeWith(
+      capabilities,
+      this.options.featureManager.clientCapabilities()
+    );
+
+    let options: ISocketConnectionOptions = {
+      capabilities,
+      virtualDocument,
+      language,
+      hasLspSupportedFile: virtualDocument.hasLspSupportedFile
+    };
+
+    let connection = await this.connectionManager.connect(options);
+
+    if (connection) {
+      await this.onConnected({ virtualDocument, connection });
+
+      return {
+        connection,
+        virtualDocument
+      };
+    } else {
+      return undefined;
+    }
+  }
+
+  /**
+   * Handle content changes and update all virtual documents after a change.
+   *
+   * #### Notes
+   * Update to the state of a notebook may be done without a notice on the
+   * CodeMirror level, e.g. when a cell is deleted. Therefore a
+   * JupyterLab-specific signal is watched instead.
+   *
+   * While by not using the change event of CodeMirror editors we lose an easy
+   * way to send selective (range) updates this can be still implemented by
+   * comparison of before/after states of the virtual documents, which is
+   * more resilient and editor-independent.
+   */
+  private async _onContentChanged(_: unknown) {
+    // Update the virtual documents.
+    // Sending the updates to LSP is out of scope here.
+    const promise = this.updateDocuments();
+    if (!promise) {
+      console.warn('Could not update documents');
+      return;
+    }
+    this._updateFinished = promise.catch(console.warn);
+    await this.updateFinished;
+  }
+}
diff --git a/packages/lsp/src/connection.ts b/packages/lsp/src/connection.ts
new file mode 100644
index 000000000000..17bb1851007a
--- /dev/null
+++ b/packages/lsp/src/connection.ts
@@ -0,0 +1,576 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISignal, Signal } from '@lumino/signaling';
+
+import {
+  ClientNotifications,
+  ClientRequests,
+  IClientRequestHandler,
+  IClientRequestParams,
+  IClientResult,
+  IDocumentInfo,
+  ILSPConnection,
+  ILSPOptions,
+  IServerRequestHandler,
+  IServerRequestParams,
+  IServerResult,
+  Method,
+  ServerNotifications,
+  ServerRequests
+} from './tokens';
+import { untilReady } from './utils';
+import {
+  registerServerCapability,
+  unregisterServerCapability
+} from './ws-connection/server-capability-registration';
+import { LspWsConnection } from './ws-connection/ws-connection';
+
+import type * as lsp from 'vscode-languageserver-protocol';
+
+import type { MessageConnection } from 'vscode-ws-jsonrpc';
+
+/**
+ * Helper class to handle client request
+ */
+class ClientRequestHandler<
+  T extends keyof IClientRequestParams = keyof IClientRequestParams
+> implements IClientRequestHandler
+{
+  constructor(
+    protected connection: MessageConnection,
+    protected method: T,
+    protected emitter: LSPConnection
+  ) {}
+  request(params: IClientRequestParams[T]): Promise<IClientResult[T]> {
+    // TODO check if is ready?
+    this.emitter.log(MessageKind.clientRequested, {
+      method: this.method,
+      message: params
+    });
+    return this.connection
+      .sendRequest(this.method, params)
+      .then((result: IClientResult[T]) => {
+        this.emitter.log(MessageKind.resultForClient, {
+          method: this.method,
+          message: params
+        });
+        return result;
+      });
+  }
+}
+
+/**
+ * Helper class to handle server responses
+ */
+class ServerRequestHandler<
+  T extends keyof IServerRequestParams = keyof IServerRequestParams
+> implements IServerRequestHandler
+{
+  constructor(
+    protected connection: MessageConnection,
+    protected method: T,
+    protected emitter: LSPConnection
+  ) {
+    // on request accepts "thenable"
+    this.connection.onRequest(method, this._handle.bind(this));
+    this._handler = null;
+  }
+
+  setHandler(
+    handler: (
+      params: IServerRequestParams[T],
+      connection?: LSPConnection
+    ) => Promise<IServerResult[T]>
+  ) {
+    this._handler = handler;
+  }
+
+  clearHandler() {
+    this._handler = null;
+  }
+
+  private _handler:
+    | ((
+        params: IServerRequestParams[T],
+        connection?: LSPConnection
+      ) => Promise<IServerResult[T]>)
+    | null;
+
+  private _handle(
+    request: IServerRequestParams[T]
+  ): Promise<IServerResult[T] | undefined> {
+    this.emitter.log(MessageKind.serverRequested, {
+      method: this.method,
+      message: request
+    });
+    if (!this._handler) {
+      return new Promise(() => undefined);
+    }
+    return this._handler(request, this.emitter).then(result => {
+      this.emitter.log(MessageKind.responseForServer, {
+        method: this.method,
+        message: result
+      });
+      return result;
+    });
+  }
+}
+
+export const Provider: { [key: string]: keyof lsp.ServerCapabilities } = {
+  TEXT_DOCUMENT_SYNC: 'textDocumentSync',
+  COMPLETION: 'completionProvider',
+  HOVER: 'hoverProvider',
+  SIGNATURE_HELP: 'signatureHelpProvider',
+  DECLARATION: 'declarationProvider',
+  DEFINITION: 'definitionProvider',
+  TYPE_DEFINITION: 'typeDefinitionProvider',
+  IMPLEMENTATION: 'implementationProvider',
+  REFERENCES: 'referencesProvider',
+  DOCUMENT_HIGHLIGHT: 'documentHighlightProvider',
+  DOCUMENT_SYMBOL: 'documentSymbolProvider',
+  CODE_ACTION: 'codeActionProvider',
+  CODE_LENS: 'codeLensProvider',
+  DOCUMENT_LINK: 'documentLinkProvider',
+  COLOR: 'colorProvider',
+  DOCUMENT_FORMATTING: 'documentFormattingProvider',
+  DOCUMENT_RANGE_FORMATTING: 'documentRangeFormattingProvider',
+  DOCUMENT_ON_TYPE_FORMATTING: 'documentOnTypeFormattingProvider',
+  RENAME: 'renameProvider',
+  FOLDING_RANGE: 'foldingRangeProvider',
+  EXECUTE_COMMAND: 'executeCommandProvider',
+  SELECTION_RANGE: 'selectionRangeProvider',
+  WORKSPACE_SYMBOL: 'workspaceSymbolProvider',
+  WORKSPACE: 'workspace'
+};
+
+type AnyMethodType =
+  | typeof Method.ServerNotification
+  | typeof Method.ClientNotification
+  | typeof Method.ClientRequest
+  | typeof Method.ServerRequest;
+type AnyMethod =
+  | Method.ServerNotification
+  | Method.ClientNotification
+  | Method.ClientRequest
+  | Method.ServerRequest;
+
+/**
+ * Create a map between the request method and its handler
+ */
+function createMethodMap<T, H, U extends keyof T = keyof T>(
+  methods: AnyMethodType,
+  handlerFactory: (method: U) => H
+): T {
+  const result: { [key in U]?: H } = {};
+  for (let method of Object.values(methods)) {
+    result[method as U] = handlerFactory(method as U);
+  }
+  return result as T;
+}
+
+enum MessageKind {
+  clientNotifiedServer,
+  serverNotifiedClient,
+  serverRequested,
+  clientRequested,
+  resultForClient,
+  responseForServer
+}
+
+interface IMessageLog<T extends AnyMethod = AnyMethod> {
+  method: T;
+  message: any;
+}
+
+export class LSPConnection extends LspWsConnection implements ILSPConnection {
+  constructor(options: ILSPOptions) {
+    super(options);
+    this._options = options;
+    this.logAllCommunication = false;
+    this.serverIdentifier = options.serverIdentifier;
+    this.serverLanguage = options.languageId;
+    this.documentsToOpen = [];
+    this.clientNotifications =
+      this.constructNotificationHandlers<ClientNotifications>(
+        Method.ClientNotification
+      );
+    this.serverNotifications =
+      this.constructNotificationHandlers<ServerNotifications>(
+        Method.ServerNotification
+      );
+  }
+
+  /**
+   * Identifier of the language server
+   */
+  readonly serverIdentifier?: string;
+
+  /**
+   * Language of the language server
+   */
+  readonly serverLanguage?: string;
+
+  /**
+   * Notifications comes from the client.
+   */
+  readonly clientNotifications: ClientNotifications;
+
+  /**
+   * Notifications comes from the server.
+   */
+  readonly serverNotifications: ServerNotifications;
+
+  /**
+   * Requests comes from the client.
+   */
+  clientRequests: ClientRequests;
+
+  /**
+   * Responses comes from the server.
+   */
+  serverRequests: ServerRequests;
+
+  /**
+   * Should log all communication?
+   */
+  logAllCommunication: boolean;
+
+  /**
+   * Signal emitted when the connection is closed.
+   */
+  get closeSignal(): ISignal<ILSPConnection, boolean> {
+    return this._closeSignal;
+  }
+
+  /**
+   * Signal emitted when the connection receives an error
+   * message.
+   */
+  get errorSignal(): ISignal<ILSPConnection, any> {
+    return this._errorSignal;
+  }
+
+  /**
+   * Signal emitted when the connection is initialized.
+   */
+  get serverInitialized(): ISignal<
+    ILSPConnection,
+    lsp.ServerCapabilities<any>
+  > {
+    return this._serverInitialized;
+  }
+
+  /**
+   * Dispose the connection.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    Object.values(this.serverRequests).forEach(request =>
+      request.clearHandler()
+    );
+    this.close();
+    super.dispose();
+  }
+
+  /**
+   * Helper to print the logs to logger, for now we are using
+   * directly the browser's console.
+   */
+  log(kind: MessageKind, message: IMessageLog): void {
+    if (this.logAllCommunication) {
+      console.log(kind, message);
+    }
+  }
+
+  /**
+   * Send the open request to the backend when the server is
+   * ready.
+   */
+  sendOpenWhenReady(documentInfo: IDocumentInfo): void {
+    if (this.isReady) {
+      this.sendOpen(documentInfo);
+    } else {
+      this.documentsToOpen.push(documentInfo);
+    }
+  }
+
+  /**
+   * Send the document changes to the server.
+   */
+  sendSelectiveChange(
+    changeEvent: lsp.TextDocumentContentChangeEvent,
+    documentInfo: IDocumentInfo
+  ): void {
+    this._sendChange([changeEvent], documentInfo);
+  }
+
+  /**
+   * Send all changes to the server.
+   */
+  sendFullTextChange(text: string, documentInfo: IDocumentInfo): void {
+    this._sendChange([{ text }], documentInfo);
+  }
+
+  /**
+   * Check if a capability is available in the server capabilities.
+   */
+  provides(capability: keyof lsp.ServerCapabilities): boolean {
+    return !!(this.serverCapabilities && this.serverCapabilities[capability]);
+  }
+
+  /**
+   * Close the connection to the server.
+   */
+  close(): void {
+    try {
+      this._closingManually = true;
+      super.close();
+    } catch (e) {
+      this._closingManually = false;
+    }
+  }
+
+  /**
+   * Initialize a connection over a web socket that speaks the LSP.
+   */
+  connect(socket: WebSocket): void {
+    super.connect(socket);
+    untilReady(() => {
+      return this.isConnected;
+    }, -1)
+      .then(() => {
+        const disposable = this.connection.onClose(() => {
+          this._isConnected = false;
+          this._closeSignal.emit(this._closingManually);
+        });
+        this._disposables.push(disposable);
+      })
+      .catch(() => {
+        console.error('Could not connect onClose signal');
+      });
+  }
+
+  /**
+   * Get send request to the server to get completion results
+   * from a completion item
+   */
+  async getCompletionResolve(
+    completionItem: lsp.CompletionItem
+  ): Promise<lsp.CompletionItem | undefined> {
+    if (!this.isReady) {
+      return;
+    }
+    return this.connection.sendRequest<lsp.CompletionItem>(
+      'completionItem/resolve',
+      completionItem
+    );
+  }
+
+  /**
+   * List of documents waiting to be opened once the connection
+   * is ready.
+   */
+  protected documentsToOpen: IDocumentInfo[];
+
+  /**
+   * Generate the notification handlers
+   */
+  protected constructNotificationHandlers<
+    T extends ServerNotifications | ClientNotifications
+  >(
+    methods: typeof Method.ServerNotification | typeof Method.ClientNotification
+  ): T {
+    const factory = () => new Signal<any, any>(this);
+    return createMethodMap<T, Signal<any, any>>(methods, factory);
+  }
+
+  /**
+   * Generate the client request handler
+   */
+  protected constructClientRequestHandler<
+    T extends ClientRequests,
+    U extends keyof T = keyof T
+  >(methods: typeof Method.ClientRequest): T {
+    return createMethodMap<T, IClientRequestHandler>(
+      methods,
+      method =>
+        new ClientRequestHandler(this.connection, method as U as any, this)
+    );
+  }
+
+  /**
+   * Generate the server response handler
+   */
+  protected constructServerRequestHandler<
+    T extends ServerRequests,
+    U extends keyof T = keyof T
+  >(methods: typeof Method.ServerRequest): T {
+    return createMethodMap<T, IServerRequestHandler>(
+      methods,
+      method =>
+        new ServerRequestHandler(this.connection, method as U as any, this)
+    );
+  }
+
+  /**
+   * Initialization parameters to be sent to the language server.
+   * Subclasses can overload this when adding more features.
+   */
+  protected initializeParams(): lsp.InitializeParams {
+    return {
+      ...super.initializeParams(),
+      capabilities: this._options.capabilities,
+      initializationOptions: null,
+      processId: null,
+      workspaceFolders: null
+    };
+  }
+
+  /**
+   * Callback called when the server is initialized.
+   */
+  protected onServerInitialized(params: lsp.InitializeResult): void {
+    this.afterInitialized();
+    super.onServerInitialized(params);
+    while (this.documentsToOpen.length) {
+      this.sendOpen(this.documentsToOpen.pop()!);
+    }
+    this._serverInitialized.emit(this.serverCapabilities);
+  }
+
+  /**
+   * Once the server is initialized, this method generates the
+   * client and server handlers
+   */
+  protected afterInitialized(): void {
+    const disposable = this.connection.onError(e => this._errorSignal.emit(e));
+    this._disposables.push(disposable);
+    for (const method of Object.values(
+      Method.ServerNotification
+    ) as (keyof ServerNotifications)[]) {
+      const signal = this.serverNotifications[method] as Signal<any, any>;
+      const disposable = this.connection.onNotification(method, params => {
+        this.log(MessageKind.serverNotifiedClient, {
+          method,
+          message: params
+        });
+        signal.emit(params);
+      });
+      this._disposables.push(disposable);
+    }
+
+    for (const method of Object.values(
+      Method.ClientNotification
+    ) as (keyof ClientNotifications)[]) {
+      const signal = this.clientNotifications[method] as Signal<any, any>;
+      signal.connect((emitter, params) => {
+        this.log(MessageKind.clientNotifiedServer, {
+          method,
+          message: params
+        });
+        this.connection.sendNotification(method, params).catch(console.error);
+      });
+    }
+
+    this.clientRequests = this.constructClientRequestHandler<ClientRequests>(
+      Method.ClientRequest
+    );
+    this.serverRequests = this.constructServerRequestHandler<ServerRequests>(
+      Method.ServerRequest
+    );
+
+    this.serverRequests['client/registerCapability'].setHandler(
+      async (params: lsp.RegistrationParams) => {
+        params.registrations.forEach(
+          (capabilityRegistration: lsp.Registration) => {
+            try {
+              const updatedCapabilities = registerServerCapability(
+                this.serverCapabilities,
+                capabilityRegistration
+              );
+              if (updatedCapabilities === null) {
+                console.error(
+                  `Failed to register server capability: ${capabilityRegistration}`
+                );
+                return;
+              }
+              this.serverCapabilities = updatedCapabilities;
+            } catch (err) {
+              console.error(err);
+            }
+          }
+        );
+      }
+    );
+
+    this.serverRequests['client/unregisterCapability'].setHandler(
+      async (params: lsp.UnregistrationParams) => {
+        params.unregisterations.forEach(
+          (capabilityUnregistration: lsp.Unregistration) => {
+            this.serverCapabilities = unregisterServerCapability(
+              this.serverCapabilities,
+              capabilityUnregistration
+            );
+          }
+        );
+      }
+    );
+
+    this.serverRequests['workspace/configuration'].setHandler(async params => {
+      return params.items.map(item => {
+        // LSP: "If the client can’t provide a configuration setting for a given scope
+        // then `null` needs to be present in the returned array."
+
+        // for now we do not support configuration, but yaml server does not respect
+        // client capability so we have a handler just for that
+        return null;
+      });
+    });
+  }
+
+  /**
+   * Is the connection is closed manually?
+   */
+  private _closingManually = false;
+
+  private _options: ILSPOptions;
+
+  private _closeSignal: Signal<ILSPConnection, boolean> = new Signal(this);
+  private _errorSignal: Signal<ILSPConnection, any> = new Signal(this);
+  private _serverInitialized: Signal<
+    ILSPConnection,
+    lsp.ServerCapabilities<any>
+  > = new Signal(this);
+
+  /**
+   * Send the document changed data to the server.
+   */
+  private _sendChange(
+    changeEvents: lsp.TextDocumentContentChangeEvent[],
+    documentInfo: IDocumentInfo
+  ) {
+    if (!this.isReady) {
+      return;
+    }
+    if (documentInfo.uri.length === 0) {
+      return;
+    }
+    if (!this.openedUris.get(documentInfo.uri)) {
+      this.sendOpen(documentInfo);
+    }
+    const textDocumentChange: lsp.DidChangeTextDocumentParams = {
+      textDocument: {
+        uri: documentInfo.uri,
+        version: documentInfo.version
+      } as lsp.VersionedTextDocumentIdentifier,
+      contentChanges: changeEvents
+    };
+    this.connection
+      .sendNotification('textDocument/didChange', textDocumentChange)
+      .catch(console.error);
+    documentInfo.version++;
+  }
+}
diff --git a/packages/lsp/src/connection_manager.ts b/packages/lsp/src/connection_manager.ts
new file mode 100644
index 000000000000..ef7232639aba
--- /dev/null
+++ b/packages/lsp/src/connection_manager.ts
@@ -0,0 +1,697 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { PageConfig, URLExt } from '@jupyterlab/coreutils';
+import { IDocumentWidget } from '@jupyterlab/docregistry';
+import { ISignal, Signal } from '@lumino/signaling';
+
+import { WidgetLSPAdapter } from './adapters/adapter';
+import { LSPConnection } from './connection';
+import { ClientCapabilities } from './lsp';
+import { AskServersToSendTraceNotifications } from './plugin';
+import {
+  Document,
+  IDocumentConnectionData,
+  ILanguageServerManager,
+  ILSPConnection,
+  ILSPDocumentConnectionManager,
+  ISocketConnectionOptions,
+  TLanguageServerConfigurations,
+  TLanguageServerId,
+  TServerKeys
+} from './tokens';
+import { expandDottedPaths, sleep, untilReady } from './utils';
+import { VirtualDocument } from './virtual/document';
+
+import type * as protocol from 'vscode-languageserver-protocol';
+
+/**
+ * Each Widget with a document (whether file or a notebook) has the same DocumentConnectionManager
+ * (see JupyterLabWidgetAdapter). Using id_path instead of uri led to documents being overwritten
+ * as two identical id_paths could be created for two different notebooks.
+ */
+export class DocumentConnectionManager
+  implements ILSPDocumentConnectionManager
+{
+  constructor(options: DocumentConnectionManager.IOptions) {
+    this.connections = new Map();
+    this.documents = new Map();
+    this.adapters = new Map();
+    this._ignoredLanguages = new Set();
+    this.languageServerManager = options.languageServerManager;
+    Private.setLanguageServerManager(options.languageServerManager);
+  }
+
+  /**
+   * Map between the URI of the virtual document and its connection
+   * to the language server
+   */
+  readonly connections: Map<VirtualDocument.uri, LSPConnection>;
+
+  /**
+   * Map between the path of the document and its adapter
+   */
+  readonly adapters: Map<string, WidgetLSPAdapter<IDocumentWidget>>;
+
+  /**
+   * Map between the URI of the virtual document and the document itself.
+   */
+  readonly documents: Map<VirtualDocument.uri, VirtualDocument>;
+  /**
+   * The language server manager plugin.
+   */
+  readonly languageServerManager: ILanguageServerManager;
+
+  /**
+   * Initial configuration for the language servers.
+   */
+  initialConfigurations: TLanguageServerConfigurations;
+
+  /**
+   * Signal emitted when the manager is initialized.
+   */
+  get initialized(): ISignal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > {
+    return this._initialized;
+  }
+
+  /**
+   * Signal emitted when the manager is connected to the server
+   */
+  get connected(): ISignal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > {
+    return this._connected;
+  }
+
+  /**
+   * Connection temporarily lost or could not be fully established; a re-connection will be attempted;
+   */
+  get disconnected(): ISignal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > {
+    return this._disconnected;
+  }
+
+  /**
+   * Connection was closed permanently and no-reconnection will be attempted, e.g.:
+   *  - there was a serious server error
+   *  - user closed the connection,
+   *  - re-connection attempts exceeded,
+   */
+  get closed(): ISignal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > {
+    return this._closed;
+  }
+
+  /**
+   * Signal emitted when the document is changed.
+   */
+  get documentsChanged(): ISignal<
+    ILSPDocumentConnectionManager,
+    Map<VirtualDocument.uri, VirtualDocument>
+  > {
+    return this._documentsChanged;
+  }
+
+  /**
+   * Promise resolved when the language server manager is ready.
+   */
+  get ready(): Promise<void> {
+    return Private.getLanguageServerManager().ready;
+  }
+
+  /**
+   * Helper to connect various virtual document signal with callbacks of
+   * this class.
+   *
+   * @param  virtualDocument - virtual document to be connected.
+   */
+  connectDocumentSignals(virtualDocument: VirtualDocument): void {
+    virtualDocument.foreignDocumentOpened.connect(
+      this.onForeignDocumentOpened,
+      this
+    );
+
+    virtualDocument.foreignDocumentClosed.connect(
+      this.onForeignDocumentClosed,
+      this
+    );
+    this.documents.set(virtualDocument.uri, virtualDocument);
+    this._documentsChanged.emit(this.documents);
+  }
+
+  /**
+   * Helper to disconnect various virtual document signal with callbacks of
+   * this class.
+   *
+   * @param  virtualDocument - virtual document to be disconnected.
+   */
+  disconnectDocumentSignals(
+    virtualDocument: VirtualDocument,
+    emit = true
+  ): void {
+    virtualDocument.foreignDocumentOpened.disconnect(
+      this.onForeignDocumentOpened,
+      this
+    );
+
+    virtualDocument.foreignDocumentClosed.disconnect(
+      this.onForeignDocumentClosed,
+      this
+    );
+    this.documents.delete(virtualDocument.uri);
+    for (const foreign of virtualDocument.foreignDocuments.values()) {
+      this.disconnectDocumentSignals(foreign, false);
+    }
+
+    if (emit) {
+      this._documentsChanged.emit(this.documents);
+    }
+  }
+
+  /**
+   * Handle foreign document opened event.
+   */
+  onForeignDocumentOpened(
+    _host: VirtualDocument,
+    context: Document.IForeignContext
+  ): void {
+    /** no-op */
+  }
+
+  /**
+   * Handle foreign document closed event.
+   */
+  onForeignDocumentClosed(
+    _host: VirtualDocument,
+    context: Document.IForeignContext
+  ): void {
+    const { foreignDocument } = context;
+    this.unregisterDocument(foreignDocument.uri, false);
+    this.disconnectDocumentSignals(foreignDocument);
+  }
+
+  /**
+   * Register a widget adapter with this manager
+   *
+   * @param  path - path to the inner document of the adapter
+   * @param  adapter - the adapter to be registered
+   */
+  registerAdapter(
+    path: string,
+    adapter: WidgetLSPAdapter<IDocumentWidget>
+  ): void {
+    this.adapters.set(path, adapter);
+    adapter.disposed.connect(() => {
+      if (adapter.virtualDocument) {
+        this.documents.delete(adapter.virtualDocument.uri);
+      }
+      this.adapters.delete(path);
+    });
+  }
+
+  /**
+   * Handles the settings that do not require an existing connection
+   * with a language server (or can influence to which server the
+   * connection will be created, e.g. `rank`).
+   *
+   * This function should be called **before** initialization of servers.
+   */
+  updateConfiguration(allServerSettings: TLanguageServerConfigurations): void {
+    this.languageServerManager.setConfiguration(allServerSettings);
+  }
+
+  /**
+   * Handles the settings that the language servers accept using
+   * `onDidChangeConfiguration` messages, which should be passed under
+   * the "serverSettings" keyword in the setting registry.
+   * Other configuration options are handled by `updateConfiguration` instead.
+   *
+   * This function should be called **after** initialization of servers.
+   */
+  updateServerConfigurations(
+    allServerSettings: TLanguageServerConfigurations
+  ): void {
+    let languageServerId: TServerKeys;
+
+    for (languageServerId in allServerSettings) {
+      if (!allServerSettings.hasOwnProperty(languageServerId)) {
+        continue;
+      }
+      const rawSettings = allServerSettings[languageServerId]!;
+
+      const parsedSettings = expandDottedPaths(rawSettings.configuration || {});
+
+      const serverSettings: protocol.DidChangeConfigurationParams = {
+        settings: parsedSettings
+      };
+
+      Private.updateServerConfiguration(languageServerId, serverSettings);
+    }
+  }
+
+  /**
+   * Fired the first time a connection is opened. These _should_ be the only
+   * invocation of `.on` (once remaining LSPFeature.connection_handlers are made
+   * singletons).
+   */
+  onNewConnection = (connection: LSPConnection): void => {
+    const errorSignalSlot = (_: ILSPConnection, e: any): void => {
+      console.error(e);
+      let error: Error = e.length && e.length >= 1 ? e[0] : new Error();
+      if (error.message.indexOf('code = 1005') !== -1) {
+        console.error(`Connection failed for ${connection}`);
+        this._forEachDocumentOfConnection(connection, virtualDocument => {
+          console.error('disconnecting ' + virtualDocument.uri);
+          this._closed.emit({ connection, virtualDocument });
+          this._ignoredLanguages.add(virtualDocument.language);
+          console.error(
+            `Cancelling further attempts to connect ${virtualDocument.uri} and other documents for this language (no support from the server)`
+          );
+        });
+      } else if (error.message.indexOf('code = 1006') !== -1) {
+        console.error('Connection closed by the server');
+      } else {
+        console.error('Connection error:', e);
+      }
+    };
+    connection.errorSignal.connect(errorSignalSlot);
+
+    const serverInitializedSlot = (): void => {
+      // Initialize using settings stored in the SettingRegistry
+      this._forEachDocumentOfConnection(connection, virtualDocument => {
+        // TODO: is this still necessary, e.g. for status bar to update responsively?
+        this._initialized.emit({ connection, virtualDocument });
+      });
+      this.updateServerConfigurations(this.initialConfigurations);
+    };
+    connection.serverInitialized.connect(serverInitializedSlot);
+
+    const closeSignalSlot = (_: ILSPConnection, closedManually: boolean) => {
+      if (!closedManually) {
+        console.error('Connection unexpectedly disconnected');
+      } else {
+        console.log('Connection closed');
+        this._forEachDocumentOfConnection(connection, virtualDocument => {
+          this._closed.emit({ connection, virtualDocument });
+        });
+      }
+    };
+    connection.closeSignal.connect(closeSignalSlot);
+  };
+
+  /**
+   * Retry to connect to the server each `reconnectDelay` seconds
+   * and for `retrialsLeft` times.
+   * TODO: presently no longer referenced. A failing connection would close
+   * the socket, triggering the language server on the other end to exit.
+   */
+  async retryToConnect(
+    options: ISocketConnectionOptions,
+    reconnectDelay: number,
+    retrialsLeft = -1
+  ): Promise<void> {
+    let { virtualDocument } = options;
+
+    if (this._ignoredLanguages.has(virtualDocument.language)) {
+      return;
+    }
+
+    let interval = reconnectDelay * 1000;
+    let success = false;
+
+    while (retrialsLeft !== 0 && !success) {
+      await this.connect(options)
+        .then(() => {
+          success = true;
+        })
+        .catch(e => {
+          console.warn(e);
+        });
+
+      console.log(
+        'will attempt to re-connect in ' + interval / 1000 + ' seconds'
+      );
+      await sleep(interval);
+
+      // gradually increase the time delay, up to 5 sec
+      interval = interval < 5 * 1000 ? interval + 500 : interval;
+    }
+  }
+
+  /**
+   * Disconnect the connection to the language server of the requested
+   * language.
+   */
+  disconnect(languageId: TLanguageServerId): void {
+    Private.disconnect(languageId);
+  }
+
+  /**
+   * Create a new connection to the language server
+   * @return A promise of the LSP connection
+   */
+  async connect(
+    options: ISocketConnectionOptions,
+    firstTimeoutSeconds = 30,
+    secondTimeoutMinutes = 5
+  ): Promise<ILSPConnection | undefined> {
+    let connection = await this._connectSocket(options);
+    let { virtualDocument } = options;
+    if (!connection) {
+      return;
+    }
+    if (!connection.isReady) {
+      try {
+        // user feedback hinted that 40 seconds was too short and some users are willing to wait more;
+        // to make the best of both worlds we first check frequently (6.6 times a second) for the first
+        // 30 seconds, and show the warning early in case if something is wrong; we then continue retrying
+        // for another 5 minutes, but only once per second.
+        await untilReady(
+          () => connection!.isReady,
+          Math.round((firstTimeoutSeconds * 1000) / 150),
+          150
+        );
+      } catch {
+        console.log(
+          `Connection to ${virtualDocument.uri} timed out after ${firstTimeoutSeconds} seconds, will continue retrying for another ${secondTimeoutMinutes} minutes`
+        );
+        try {
+          await untilReady(
+            () => connection!.isReady,
+            60 * secondTimeoutMinutes,
+            1000
+          );
+        } catch {
+          console.log(
+            `Connection to ${virtualDocument.uri} timed out again after ${secondTimeoutMinutes} minutes, giving up`
+          );
+          return;
+        }
+      }
+    }
+
+    this._connected.emit({ connection, virtualDocument });
+
+    return connection;
+  }
+
+  /**
+   * Disconnect the signals of requested virtual document URI.
+   */
+  unregisterDocument(uri: string, emit: boolean = true): void {
+    const connection = this.connections.get(uri);
+    if (connection) {
+      this.connections.delete(uri);
+      const allConnection = new Set(this.connections.values());
+
+      if (!allConnection.has(connection)) {
+        this.disconnect(connection.serverIdentifier as TLanguageServerId);
+        connection.dispose();
+      }
+      if (emit) {
+        this._documentsChanged.emit(this.documents);
+      }
+    }
+  }
+
+  /**
+   * Enable or disable the logging of language server communication.
+   */
+  updateLogging(
+    logAllCommunication: boolean,
+    setTrace: AskServersToSendTraceNotifications
+  ): void {
+    for (const connection of this.connections.values()) {
+      connection.logAllCommunication = logAllCommunication;
+      if (setTrace !== null) {
+        connection.clientNotifications['$/setTrace'].emit({ value: setTrace });
+      }
+    }
+  }
+
+  /**
+   * Create the LSP connection for requested virtual document.
+   *
+   * @return  Return the promise of the LSP connection.
+   */
+
+  private async _connectSocket(
+    options: ISocketConnectionOptions
+  ): Promise<LSPConnection | undefined> {
+    let { language, capabilities, virtualDocument } = options;
+
+    this.connectDocumentSignals(virtualDocument);
+
+    const uris = DocumentConnectionManager.solveUris(virtualDocument, language);
+    const matchingServers = this.languageServerManager.getMatchingServers({
+      language
+    });
+
+    // for now use only the server with the highest rank.
+    const languageServerId =
+      matchingServers.length === 0 ? null : matchingServers[0];
+
+    // lazily load 1) the underlying library (1.5mb) and/or 2) a live WebSocket-
+    // like connection: either already connected or potentially in the process
+    // of connecting.
+    if (!uris) {
+      return;
+    }
+    const connection = await Private.connection(
+      language,
+      languageServerId!,
+      uris,
+      this.onNewConnection,
+      capabilities
+    );
+
+    // if connecting for the first time, all documents subsequent documents will
+    // be re-opened and synced
+    this.connections.set(virtualDocument.uri, connection);
+
+    return connection;
+  }
+
+  /**
+   * Helper to apply callback on all documents of a connection.
+   */
+  private _forEachDocumentOfConnection(
+    connection: ILSPConnection,
+    callback: (virtualDocument: VirtualDocument) => void
+  ) {
+    for (const [
+      virtualDocumentUri,
+      currentConnection
+    ] of this.connections.entries()) {
+      if (connection !== currentConnection) {
+        continue;
+      }
+      callback(this.documents.get(virtualDocumentUri)!);
+    }
+  }
+
+  private _initialized: Signal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > = new Signal(this);
+
+  private _connected: Signal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > = new Signal(this);
+
+  private _disconnected: Signal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > = new Signal(this);
+
+  private _closed: Signal<
+    ILSPDocumentConnectionManager,
+    IDocumentConnectionData
+  > = new Signal(this);
+
+  private _documentsChanged: Signal<
+    ILSPDocumentConnectionManager,
+    Map<VirtualDocument.uri, VirtualDocument>
+  > = new Signal(this);
+
+  /**
+   * Set of ignored languages
+   */
+  private _ignoredLanguages: Set<string>;
+}
+
+export namespace DocumentConnectionManager {
+  export interface IOptions {
+    /**
+     * The language server manager instance.
+     */
+    languageServerManager: ILanguageServerManager;
+  }
+
+  /**
+   * Generate the URI of a virtual document from input
+   *
+   * @param  virtualDocument - the virtual document
+   * @param  language - language of the document
+   */
+  export function solveUris(
+    virtualDocument: VirtualDocument,
+    language: string
+  ): IURIs | undefined {
+    const serverManager = Private.getLanguageServerManager();
+    const wsBase = serverManager.settings.wsUrl;
+    const rootUri = PageConfig.getOption('rootUri');
+    const virtualDocumentsUri = PageConfig.getOption('virtualDocumentsUri');
+
+    // for now take the best match only
+    const serverOptions: ILanguageServerManager.IGetServerIdOptions = {
+      language
+    };
+    const matchingServers = serverManager.getMatchingServers(serverOptions);
+    const languageServerId =
+      matchingServers.length === 0 ? null : matchingServers[0];
+
+    if (languageServerId === null) {
+      return;
+    }
+
+    const specs = serverManager.getMatchingSpecs(serverOptions);
+    const spec = specs.get(languageServerId);
+    if (!spec) {
+      console.warn(
+        `Specification not available for server ${languageServerId}`
+      );
+    }
+    const requiresOnDiskFiles = spec?.requires_documents_on_disk ?? true;
+    const supportsInMemoryFiles = !requiresOnDiskFiles;
+
+    const baseUri =
+      virtualDocument.hasLspSupportedFile || supportsInMemoryFiles
+        ? rootUri
+        : virtualDocumentsUri;
+
+    // workaround url-parse bug(s) (see https://github.com/jupyter-lsp/jupyterlab-lsp/issues/595)
+    let documentUri = URLExt.join(baseUri, virtualDocument.uri);
+    if (
+      !documentUri.startsWith('file:///') &&
+      documentUri.startsWith('file://')
+    ) {
+      documentUri = documentUri.replace('file://', 'file:///');
+      if (
+        documentUri.startsWith('file:///users/') &&
+        baseUri.startsWith('file:///Users/')
+      ) {
+        documentUri = documentUri.replace('file:///users/', 'file:///Users/');
+      }
+    }
+
+    return {
+      base: baseUri,
+      document: documentUri,
+      server: URLExt.join('ws://jupyter-lsp', language),
+      socket: URLExt.join(wsBase, 'lsp', 'ws', languageServerId)
+    };
+  }
+
+  export interface IURIs {
+    /**
+     * The root URI set by server.
+     *
+     */
+    base: string;
+
+    /**
+     * The URI to the virtual document.
+     *
+     */
+    document: string;
+
+    /**
+     * Address of websocket endpoint for LSP services.
+     *
+     */
+    server: string;
+
+    /**
+     * Address of websocket endpoint for the language server.
+     *
+     */
+    socket: string;
+  }
+}
+
+/**
+ * Namespace primarily for language-keyed cache of LSPConnections
+ */
+namespace Private {
+  const _connections: Map<TLanguageServerId, LSPConnection> = new Map();
+  let _languageServerManager: ILanguageServerManager;
+
+  export function getLanguageServerManager(): ILanguageServerManager {
+    return _languageServerManager;
+  }
+  export function setLanguageServerManager(
+    languageServerManager: ILanguageServerManager
+  ): void {
+    _languageServerManager = languageServerManager;
+  }
+
+  export function disconnect(languageServerId: TLanguageServerId): void {
+    const connection = _connections.get(languageServerId);
+    if (connection) {
+      connection.close();
+      _connections.delete(languageServerId);
+    }
+  }
+
+  /**
+   * Return (or create and initialize) the WebSocket associated with the language
+   */
+  export async function connection(
+    language: string,
+    languageServerId: TLanguageServerId,
+    uris: DocumentConnectionManager.IURIs,
+    onCreate: (connection: LSPConnection) => void,
+    capabilities: ClientCapabilities
+  ): Promise<LSPConnection> {
+    let connection = _connections.get(languageServerId);
+    if (!connection) {
+      const { settings } = Private.getLanguageServerManager();
+      const socket = new settings.WebSocket(uris.socket);
+      const connection = new LSPConnection({
+        languageId: language,
+        serverUri: uris.server,
+        rootUri: uris.base,
+        serverIdentifier: languageServerId,
+        capabilities: capabilities
+      });
+
+      _connections.set(languageServerId, connection);
+      connection.connect(socket);
+      onCreate(connection);
+    }
+
+    connection = _connections.get(languageServerId)!;
+
+    return connection;
+  }
+
+  export function updateServerConfiguration(
+    languageServerId: TLanguageServerId,
+    settings: protocol.DidChangeConfigurationParams
+  ): void {
+    const connection = _connections.get(languageServerId);
+    if (connection) {
+      connection.sendConfigurationChange(settings);
+    }
+  }
+}
diff --git a/packages/statusbar/src/defaults/index.ts b/packages/lsp/src/extractors/index.ts
similarity index 52%
rename from packages/statusbar/src/defaults/index.ts
rename to packages/lsp/src/extractors/index.ts
index 324ddd83b9dd..d28dc5dca086 100644
--- a/packages/statusbar/src/defaults/index.ts
+++ b/packages/lsp/src/extractors/index.ts
@@ -1,6 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-export * from './kernelStatus';
-export * from './lineCol';
-export * from './runningSessions';
+export * from './manager';
+export * from './text_extractor';
+export * from './types';
diff --git a/packages/lsp/src/extractors/manager.ts b/packages/lsp/src/extractors/manager.ts
new file mode 100644
index 000000000000..e7c3e87b667f
--- /dev/null
+++ b/packages/lsp/src/extractors/manager.ts
@@ -0,0 +1,84 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ILSPCodeExtractorsManager } from '../tokens';
+import { IForeignCodeExtractor } from './types';
+
+/**
+ * Manager for the code extractors
+ */
+export class CodeExtractorsManager implements ILSPCodeExtractorsManager {
+  constructor() {
+    this._extractorMap = new Map<
+      string,
+      Map<string, IForeignCodeExtractor[]>
+    >();
+
+    this._extractorMapAnyLanguage = new Map<string, IForeignCodeExtractor[]>();
+  }
+
+  /**
+   * Get the extractors for the input cell type and the main language of
+   * the document
+   *
+   * @param  cellType - type of cell
+   * @param  hostLanguage - main language of the document
+   */
+  getExtractors(
+    cellType: string,
+    hostLanguage: string | null
+  ): IForeignCodeExtractor[] {
+    if (hostLanguage) {
+      const currentMap = this._extractorMap.get(cellType);
+      if (!currentMap) {
+        return [];
+      }
+      return currentMap!.get(hostLanguage) ?? [];
+    } else {
+      return this._extractorMapAnyLanguage.get(cellType) ?? [];
+    }
+  }
+
+  /**
+   * Register an extractor to extract foreign code from host documents of specified language.
+   */
+  register(
+    extractor: IForeignCodeExtractor,
+    hostLanguage: string | null
+  ): void {
+    const cellType = extractor.cellType;
+    if (hostLanguage) {
+      cellType.forEach(type => {
+        if (!this._extractorMap.has(type)) {
+          this._extractorMap.set(type, new Map());
+        }
+        const currentMap = this._extractorMap.get(type)!;
+        const extractorList = currentMap.get(hostLanguage);
+        if (!extractorList) {
+          currentMap.set(hostLanguage, [extractor]);
+        } else {
+          extractorList.push(extractor);
+        }
+      });
+    } else {
+      cellType.forEach(type => {
+        if (!this._extractorMapAnyLanguage.has(type)) {
+          this._extractorMapAnyLanguage.set(type, []);
+        }
+        this._extractorMapAnyLanguage.get(type)!.push(extractor);
+      });
+    }
+  }
+
+  /**
+   * The map with key is the type of cell, value is another map between
+   * the language of cell and its code extractor.
+   */
+  private _extractorMap: Map<string, Map<string, IForeignCodeExtractor[]>>;
+
+  /**
+   * The map with key is the cell type, value is the code extractor associated
+   * with this cell type, this is used for the non-code cell types.
+   */
+  private _extractorMapAnyLanguage: Map<string, IForeignCodeExtractor[]>;
+}
diff --git a/packages/lsp/src/extractors/text_extractor.ts b/packages/lsp/src/extractors/text_extractor.ts
new file mode 100644
index 000000000000..129f4f793336
--- /dev/null
+++ b/packages/lsp/src/extractors/text_extractor.ts
@@ -0,0 +1,94 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { LanguageIdentifier } from '../lsp';
+import { positionAtOffset } from '../positioning';
+
+import { IExtractedCode, IForeignCodeExtractor } from './types';
+
+/**
+ * The code extractor for the raw and markdown text.
+ */
+export class TextForeignCodeExtractor implements IForeignCodeExtractor {
+  constructor(options: TextForeignCodeExtractor.IOptions) {
+    this.language = options.language;
+    this.standalone = options.isStandalone;
+    this.fileExtension = options.file_extension;
+    this.cellType = options.cellType;
+  }
+  /**
+   * The foreign language.
+   */
+  readonly language: LanguageIdentifier;
+
+  /**
+   * Should the foreign code be appended (False) to the previously established virtual document of the same language,
+   * or is it standalone snippet which requires separate connection?
+   */
+  readonly standalone: boolean;
+
+  /**
+   * Extension of the virtual document (some servers check extensions of files), e.g. 'py' or 'R'.
+   */
+  readonly fileExtension: string;
+
+  /**
+   * The supported cell types.
+   */
+  readonly cellType: string[];
+
+  /**
+   * Test if there is any foreign code in provided code snippet.
+   */
+  hasForeignCode(code: string, cellType: string): boolean {
+    return this.cellType.includes(cellType);
+  }
+
+  /**
+   * Split the code into the host and foreign code (if any foreign code was detected)
+   */
+  extractForeignCode(code: string): IExtractedCode[] {
+    let lines = code.split('\n');
+
+    let extracts = new Array<IExtractedCode>();
+
+    let foreignCodeFragment = code;
+
+    let start = positionAtOffset(0, lines);
+    let end = positionAtOffset(foreignCodeFragment.length, lines);
+
+    extracts.push({
+      hostCode: '',
+      foreignCode: foreignCodeFragment,
+      range: { start, end },
+      virtualShift: null
+    });
+
+    return extracts;
+  }
+}
+
+namespace TextForeignCodeExtractor {
+  export interface IOptions {
+    /**
+     * The foreign language.
+     */
+    language: string;
+
+    /**
+     * Should the foreign code be appended (False) to the previously established virtual document of the same language,
+     * or is it standalone snippet which requires separate connection?
+     */
+    isStandalone: boolean;
+
+    /**
+     * Extension of the virtual document (some servers check extensions of files), e.g. 'py' or 'R'.
+     */
+    file_extension: string;
+
+    /**
+     * The supported cell types.
+     */
+    cellType: string[];
+  }
+}
diff --git a/packages/lsp/src/extractors/types.ts b/packages/lsp/src/extractors/types.ts
new file mode 100644
index 000000000000..9e2e6e1081b4
--- /dev/null
+++ b/packages/lsp/src/extractors/types.ts
@@ -0,0 +1,78 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeEditor } from '@jupyterlab/codeeditor';
+
+import { LanguageIdentifier } from '../lsp';
+
+export interface IExtractedCode {
+  /**
+   * Foreign code (may be empty, for example line of '%R') or null if none.
+   */
+  foreignCode: string | null;
+  /**
+   * Range of the foreign code relative to the original source.
+   * `null` is used internally to represent a leftover host code after extraction.
+   */
+  range: CodeEditor.IRange | null;
+  /**
+   * Shift due to any additional code inserted at the beginning of the virtual document
+   * (usually in order to mock the arguments passed to a magic, or to provide other context clues for the linters)
+   */
+  virtualShift: CodeEditor.IPosition | null;
+  /**
+   * Code to be retained in the virtual document of the host.
+   */
+  hostCode: string | null;
+}
+
+/**
+ * Foreign code extractor makes it possible to analyze code of language X embedded in code (or notebook) of language Y.
+ *
+ * The typical examples are:
+ *  - (X=CSS< Y=HTML), or
+ *  - (X=JavaScript, Y=HTML),
+ *
+ * while in the data analysis realm, examples include:
+ *   - (X=R, Y=IPython),
+ *   - (X=LATEX Y=IPython),
+ *   - (X=SQL, Y=IPython)
+ *
+ * This extension does not aim to provide comprehensive abilities for foreign code extraction,
+ * but it does intend to provide stable interface for other extensions to build on it.
+ *
+ * A simple, regular expression based, configurable foreign extractor is implemented
+ * to provide a good reference and a good initial experience for the users.
+ */
+export interface IForeignCodeExtractor {
+  /**
+   * The foreign language.
+   */
+  readonly language: LanguageIdentifier;
+
+  /**
+   * The supported cell types.
+   */
+  readonly cellType: string[];
+
+  /**
+   * Split the code into the host and foreign code (if any foreign code was detected)
+   */
+  extractForeignCode(code: string): IExtractedCode[];
+
+  /**
+   * Does the extractor produce code which should be appended to the previously established virtual document (False)
+   * of the same language, or does it produce standalone snippets which require separate connections (True)?
+   */
+  readonly standalone: boolean;
+
+  /**
+   * Test if there is any foreign code in provided code snippet.
+   */
+  hasForeignCode(code: string, cellType: string): boolean;
+
+  /**
+   * Extension of the virtual document (some servers check extensions of files), e.g. 'py' or 'R'.
+   */
+  readonly fileExtension: string;
+}
diff --git a/packages/lsp/src/feature.ts b/packages/lsp/src/feature.ts
new file mode 100644
index 000000000000..247114c5f3b6
--- /dev/null
+++ b/packages/lsp/src/feature.ts
@@ -0,0 +1,58 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISignal, Signal } from '@lumino/signaling';
+import mergeWith from 'lodash.mergewith';
+
+import { ClientCapabilities } from './lsp';
+import { IFeature, ILSPFeatureManager } from './tokens';
+
+/**
+ * Class to manager the registered features of the language servers.
+ */
+export class FeatureManager implements ILSPFeatureManager {
+  constructor() {
+    this._featuresRegistered = new Signal(this);
+  }
+  /**
+   * List of registered features
+   */
+  readonly features: Array<IFeature> = [];
+
+  /**
+   * Signal emitted when a new feature is registered.
+   */
+  get featuresRegistered(): ISignal<ILSPFeatureManager, IFeature> {
+    return this._featuresRegistered;
+  }
+
+  /**
+   * Register a new feature, skip if it is already registered.
+   */
+  register(feature: IFeature): void {
+    if (this.features.some(ft => ft.id === feature.id)) {
+      console.warn(
+        `Feature with id ${feature.id} is already registered, skipping.`
+      );
+    } else {
+      this.features.push(feature);
+      this._featuresRegistered.emit(feature);
+    }
+  }
+
+  /**
+   * Get the capabilities of all clients.
+   */
+  clientCapabilities(): ClientCapabilities {
+    let capabilities: ClientCapabilities = {};
+    for (const feature of this.features) {
+      if (!feature.capabilities) {
+        continue;
+      }
+      capabilities = mergeWith(capabilities, feature.capabilities);
+    }
+    return capabilities;
+  }
+
+  private _featuresRegistered: Signal<ILSPFeatureManager, IFeature>;
+}
diff --git a/packages/lsp/src/index.ts b/packages/lsp/src/index.ts
new file mode 100644
index 000000000000..0b33636d1649
--- /dev/null
+++ b/packages/lsp/src/index.ts
@@ -0,0 +1,17 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module lsp
+ */
+
+export * from './adapters/adapter';
+export * from './connection_manager';
+export * from './extractors';
+export * from './feature';
+export * from './manager';
+export * from './plugin';
+export * from './positioning';
+export * from './tokens';
+export * from './utils';
+export * from './virtual/document';
diff --git a/packages/lsp/src/lsp.ts b/packages/lsp/src/lsp.ts
new file mode 100644
index 000000000000..cdc200f4e3b2
--- /dev/null
+++ b/packages/lsp/src/lsp.ts
@@ -0,0 +1,160 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import type * as lsp from 'vscode-languageserver-protocol';
+
+export type ClientCapabilities = lsp.ClientCapabilities;
+
+export enum DiagnosticSeverity {
+  Error = 1,
+  Warning = 2,
+  Information = 3,
+  Hint = 4
+}
+
+export enum DiagnosticTag {
+  Unnecessary = 1,
+  Deprecated = 2
+}
+
+export enum CompletionItemTag {
+  Deprecated = 1
+}
+
+export enum CompletionItemKind {
+  Text = 1,
+  Method = 2,
+  Function = 3,
+  Constructor = 4,
+  Field = 5,
+  Variable = 6,
+  Class = 7,
+  Interface = 8,
+  Module = 9,
+  Property = 10,
+  Unit = 11,
+  Value = 12,
+  Enum = 13,
+  Keyword = 14,
+  Snippet = 15,
+  Color = 16,
+  File = 17,
+  Reference = 18,
+  Folder = 19,
+  EnumMember = 20,
+  Constant = 21,
+  Struct = 22,
+  Event = 23,
+  Operator = 24,
+  TypeParameter = 25
+}
+
+export enum DocumentHighlightKind {
+  Text = 1,
+  Read = 2,
+  Write = 3
+}
+
+export enum CompletionTriggerKind {
+  Invoked = 1,
+  TriggerCharacter = 2,
+  TriggerForIncompleteCompletions = 3
+}
+
+export enum AdditionalCompletionTriggerKinds {
+  AutoInvoked = 9999
+}
+
+export type ExtendedCompletionTriggerKind =
+  | CompletionTriggerKind
+  | AdditionalCompletionTriggerKinds;
+
+export type CompletionItemKindStrings = keyof typeof CompletionItemKind;
+
+/**
+ * The language identifier for LSP, with the preferred identifier as defined in the documentation
+ * see the table in https://microsoft.github.io/language-server-protocol/specification#textDocumentItem
+ */
+export enum Languages {
+  'abap' = 'ABAP',
+  'bat' = 'Windows Bat',
+  'bibtex' = 'BibTeX',
+  'clojure' = 'Clojure',
+  'coffeescript' = 'Coffeescript',
+  'c' = 'C',
+  'cpp' = 'C++',
+  'csharp' = 'C#',
+  'css' = 'CSS',
+  'diff' = 'Diff',
+  'dart' = 'Dart',
+  'dockerfile' = 'Dockerfile',
+  'elixir' = 'Elixir',
+  'erlang' = 'Erlang',
+  'fsharp' = 'F#',
+  'git-commit' = 'Git (commit)',
+  'git-rebase' = 'Git (rebase)',
+  'go' = 'Go',
+  'groovy' = 'Groovy',
+  'handlebars' = 'Handlebars',
+  'html' = 'HTML',
+  'ini' = 'Ini',
+  'java' = 'Java',
+  'javascript' = 'JavaScript',
+  'javascriptreact' = 'JavaScript React',
+  'json' = 'JSON',
+  'latex' = 'LaTeX',
+  'less' = 'Less',
+  'lua' = 'Lua',
+  'makefile' = 'Makefile',
+  'markdown' = 'Markdown',
+  'objective-c' = 'Objective-C',
+  'objective-cpp' = 'Objective-C++',
+  'perl' = 'Perl',
+  'perl6' = 'Perl 6',
+  'php' = 'PHP',
+  'powershell' = 'Powershell',
+  'jade' = 'Pug',
+  'python' = 'Python',
+  'r' = 'R',
+  'razor' = 'Razor (cshtml)',
+  'ruby' = 'Ruby',
+  'rust' = 'Rust',
+  'scss' = 'SCSS (syntax using curly brackets)',
+  'sass' = 'SCSS (indented syntax)',
+  'scala' = 'Scala',
+  'shaderlab' = 'ShaderLab',
+  'shellscript' = 'Shell Script (Bash)',
+  'sql' = 'SQL',
+  'swift' = 'Swift',
+  'typescript' = 'TypeScript',
+  'typescriptreact' = 'TypeScript React',
+  'tex' = 'TeX',
+  'vb' = 'Visual Basic',
+  'xml' = 'XML',
+  'xsl' = 'XSL',
+  'yaml' = 'YAML'
+}
+
+export type RecommendedLanguageIdentifier = keyof typeof Languages;
+
+/**
+ * Language identifier for the LSP server, allowing any string but preferring
+ * the identifiers as recommended by the LSP documentation.
+ */
+export type LanguageIdentifier = RecommendedLanguageIdentifier | string;
+
+/**
+ * Type represents a location inside a resource, such as a line
+ * inside a text file.
+ */
+export type AnyLocation =
+  | lsp.Location
+  | lsp.Location[]
+  | lsp.LocationLink[]
+  | undefined
+  | null;
+
+/**
+ * Type represents the completion result.
+ */
+export type AnyCompletion = lsp.CompletionList | lsp.CompletionItem[];
diff --git a/packages/lsp/src/manager.ts b/packages/lsp/src/manager.ts
new file mode 100644
index 000000000000..f988da06c92a
--- /dev/null
+++ b/packages/lsp/src/manager.ts
@@ -0,0 +1,344 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { PageConfig, URLExt } from '@jupyterlab/coreutils';
+import { ServerConnection } from '@jupyterlab/services';
+import { ISignal, Signal } from '@lumino/signaling';
+
+import {
+  ILanguageServerManager,
+  TLanguageServerConfigurations,
+  TLanguageServerId,
+  TSessionMap,
+  TSpecsMap
+} from './tokens';
+import { ServerSpecProperties } from './schema';
+import { PromiseDelegate } from '@lumino/coreutils';
+
+export class LanguageServerManager implements ILanguageServerManager {
+  constructor(options: ILanguageServerManager.IOptions) {
+    this._settings = options.settings || ServerConnection.makeSettings();
+    this._baseUrl = options.baseUrl || PageConfig.getBaseUrl();
+    this._retries = options.retries || 2;
+    this._retriesInterval = options.retriesInterval || 10000;
+    this._statusCode = -1;
+    this._configuration = {};
+
+    this.fetchSessions().catch(e => console.log(e));
+  }
+
+  /**
+   * Check if the manager is enabled or disabled
+   */
+  get isEnabled(): boolean {
+    return this._enabled;
+  }
+
+  /**
+   * Check if the manager is disposed.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Get server connection settings.
+   */
+  get settings() {
+    return this._settings;
+  }
+
+  /**
+   * Get the language server specs.
+   */
+  get specs(): TSpecsMap {
+    return this._specs;
+  }
+
+  /**
+   * Get the status end point.
+   */
+  get statusUrl(): string {
+    return URLExt.join(this._baseUrl, ILanguageServerManager.URL_NS, 'status');
+  }
+
+  /**
+   * Signal emitted when a  language server session is changed
+   */
+  get sessionsChanged(): ISignal<ILanguageServerManager, void> {
+    return this._sessionsChanged;
+  }
+
+  /**
+   * Get the map of language server sessions.
+   */
+  get sessions(): TSessionMap {
+    return this._sessions;
+  }
+
+  /**
+   * A promise resolved when this server manager is ready.
+   */
+  get ready(): Promise<void> {
+    return this._ready.promise;
+  }
+
+  /**
+   * Get the status code of server's responses.
+   */
+  get statusCode(): number {
+    return this._statusCode;
+  }
+
+  /**
+   * Enable the language server services
+   */
+  async enable(): Promise<void> {
+    this._enabled = true;
+    await this.fetchSessions();
+  }
+
+  /**
+   * Disable the language server services
+   */
+  disable(): void {
+    this._enabled = false;
+    this._sessions = new Map();
+    this._sessionsChanged.emit(void 0);
+  }
+
+  /**
+   * Dispose the manager.
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+
+    Signal.clearData(this);
+  }
+
+  /**
+   * Update the language server configuration.
+   */
+  setConfiguration(configuration: TLanguageServerConfigurations): void {
+    this._configuration = configuration;
+  }
+
+  /**
+   * Get matching language server for input language option.
+   */
+  getMatchingServers(
+    options: ILanguageServerManager.IGetServerIdOptions
+  ): TLanguageServerId[] {
+    if (!options.language) {
+      console.error(
+        'Cannot match server by language: language not available; ensure that kernel and specs provide language and MIME type'
+      );
+      return [];
+    }
+
+    const matchingSessionsKeys: TLanguageServerId[] = [];
+
+    for (const [key, session] of this._sessions.entries()) {
+      if (this.isMatchingSpec(options, session.spec)) {
+        matchingSessionsKeys.push(key);
+      }
+    }
+
+    return matchingSessionsKeys.sort(this.compareRanks.bind(this));
+  }
+
+  /**
+   * Get matching language server spec for input language option.
+   */
+  getMatchingSpecs(
+    options: ILanguageServerManager.IGetServerIdOptions
+  ): TSpecsMap {
+    const result: TSpecsMap = new Map();
+
+    for (const [key, specification] of this._specs.entries()) {
+      if (this.isMatchingSpec(options, specification)) {
+        result.set(key, specification);
+      }
+    }
+    return result;
+  }
+
+  /**
+   * Fetch the server session list from the status endpoint. The server
+   * manager is ready once this method finishes.
+   */
+  async fetchSessions(): Promise<void> {
+    if (!this._enabled) {
+      return;
+    }
+    let response = await ServerConnection.makeRequest(
+      this.statusUrl,
+      { method: 'GET' },
+      this._settings
+    );
+
+    this._statusCode = response.status;
+    if (!response.ok) {
+      if (this._retries > 0) {
+        this._retries -= 1;
+        setTimeout(this.fetchSessions.bind(this), this._retriesInterval);
+      } else {
+        this._ready.resolve(undefined);
+        console.log('Missing jupyter_lsp server extension, skipping.');
+      }
+      return;
+    }
+
+    let sessions: { [key: string]: any };
+
+    try {
+      const data = await response.json();
+      sessions = data.sessions;
+      try {
+        this.version = data.version;
+        this._specs = new Map(Object.entries(data.specs)) as TSpecsMap;
+      } catch (err) {
+        console.warn(err);
+      }
+    } catch (err) {
+      console.warn(err);
+      this._ready.resolve(undefined);
+      return;
+    }
+
+    for (let key of Object.keys(sessions)) {
+      let id: TLanguageServerId = key as TLanguageServerId;
+      if (this._sessions.has(id)) {
+        Object.assign(this._sessions.get(id) || {}, sessions[key]);
+      } else {
+        this._sessions.set(id, sessions[key]);
+      }
+    }
+
+    const oldKeys = this._sessions.keys();
+
+    for (const oldKey in oldKeys) {
+      if (!sessions[oldKey]) {
+        let oldId = oldKey as TLanguageServerId;
+        this._sessions.delete(oldId);
+      }
+    }
+    this._sessionsChanged.emit(void 0);
+    this._ready.resolve(undefined);
+  }
+
+  /**
+   * Version number of sever session.
+   */
+  protected version: number;
+
+  /**
+   * Check if input language option maths the language server spec.
+   */
+  protected isMatchingSpec(
+    options: ILanguageServerManager.IGetServerIdOptions,
+    spec: ServerSpecProperties
+  ): boolean {
+    // most things speak language
+    // if language is not known, it is guessed based on MIME type earlier
+    // so some language should be available by now (which can be not so obvious, e.g. "plain" for txt documents)
+    const lowerCaseLanguage = options.language!.toLocaleLowerCase();
+    return spec.languages!.some(
+      (language: string) => language.toLocaleLowerCase() == lowerCaseLanguage
+    );
+  }
+
+  /**
+   * Helper function to warn a message only once.
+   */
+  protected warnOnce(arg: string): void {
+    if (!this._warningsEmitted.has(arg)) {
+      this._warningsEmitted.add(arg);
+      console.warn(arg);
+    }
+  }
+
+  /**
+   * Compare the rank of two servers with the same language.
+   */
+  protected compareRanks(a: TLanguageServerId, b: TLanguageServerId): number {
+    const DEFAULT_RANK = 50;
+    const aRank = this._configuration[a]?.rank ?? DEFAULT_RANK;
+    const bRank = this._configuration[b]?.rank ?? DEFAULT_RANK;
+    if (aRank == bRank) {
+      this.warnOnce(
+        `Two matching servers: ${a} and ${b} have the same rank; choose which one to use by changing the rank in Advanced Settings Editor`
+      );
+      return a.localeCompare(b);
+    }
+    // higher rank = higher in the list (descending order)
+    return bRank - aRank;
+  }
+
+  /**
+   * map of language server sessions.
+   */
+  private _sessions: TSessionMap = new Map();
+
+  /**
+   * Map of language server specs.
+   */
+  private _specs: TSpecsMap = new Map();
+
+  /**
+   * Server connection setting.
+   */
+  private _settings: ServerConnection.ISettings;
+
+  /**
+   * Base URL to connect to the language server handler.
+   */
+  private _baseUrl: string;
+
+  /**
+   * Status code of server response
+   */
+  private _statusCode: number;
+
+  /**
+   * Number of connection retry, default to 2.
+   */
+  private _retries: number;
+
+  /**
+   * Interval between each retry, default to 10s.
+   */
+  private _retriesInterval: number;
+
+  /**
+   * Language server configuration.
+   */
+  private _configuration: TLanguageServerConfigurations;
+
+  /**
+   * Set of emitted warning message, message in this set will not be warned again.
+   */
+  private _warningsEmitted = new Set<string>();
+
+  /**
+   * A promise resolved when this server manager is ready.
+   */
+  private _ready = new PromiseDelegate<void>();
+
+  /**
+   * Signal emitted when a  language server session is changed
+   */
+  private _sessionsChanged: Signal<ILanguageServerManager, void> = new Signal(
+    this
+  );
+
+  private _isDisposed = false;
+
+  /**
+   * Check if the manager is enabled or disabled
+   */
+  private _enabled = true;
+}
diff --git a/packages/lsp/src/plugin.ts b/packages/lsp/src/plugin.ts
new file mode 100644
index 000000000000..60c1089a3751
--- /dev/null
+++ b/packages/lsp/src/plugin.ts
@@ -0,0 +1,62 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+/* eslint-disable */
+
+/**
+ * This file was automatically generated by json-schema-to-typescript.
+ * DO NOT MODIFY IT BY HAND. Instead, modify the source JSONSchema file,
+ * and run jlpm build:schema to regenerate this file.
+ */
+
+/**
+ * Enable or disable the language server services.
+ */
+export type Activate = 'off' | 'on';
+/**
+ * When multiple servers match specific document/language, the server with the highest rank will be used
+ */
+export type RankOfTheServer = number;
+/**
+ * Whether to ask server to send logs with execution trace (for debugging). Accepted values are: "off", "messages", "verbose". Servers are allowed to ignore this request.
+ */
+export type AskServersToSendTraceNotifications = 'off' | 'messages' | 'verbose';
+/**
+ * Enable or disable the logging feature of the language servers.
+ */
+export type LogCommunication = boolean;
+
+/**
+ * Language Server Protocol settings.
+ */
+export interface LanguageServersExperimental {
+  activate?: Activate;
+  languageServers?: LanguageServer;
+  setTrace?: AskServersToSendTraceNotifications;
+  logAllCommunication?: LogCommunication;
+  [k: string]: any;
+}
+/**
+ * Language-server specific configuration, keyed by implementation
+ */
+export interface LanguageServer {
+  [k: string]: LanguageServer1;
+}
+/**
+ * This interface was referenced by `LanguageServer`'s JSON-Schema definition
+ * via the `patternProperty` ".*".
+ *
+ * This interface was referenced by `LanguageServersExperimental`'s JSON-Schema
+ * via the `definition` "languageServer".
+ */
+export interface LanguageServer1 {
+  configuration?: LanguageServerConfigurations;
+  rank?: RankOfTheServer;
+  [k: string]: any;
+}
+/**
+ * Configuration to be sent to language server over LSP when initialized: see the specific language server's documentation for more
+ */
+export interface LanguageServerConfigurations {
+  [k: string]: any;
+}
diff --git a/packages/lsp/src/positioning.ts b/packages/lsp/src/positioning.ts
new file mode 100644
index 000000000000..02ca05fd52b1
--- /dev/null
+++ b/packages/lsp/src/positioning.ts
@@ -0,0 +1,126 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import type * as lsp from 'vscode-languageserver-protocol';
+
+/**
+ * CM5 position interface.
+ *
+ * TODO: Migrate to offset-only mode once `CodeEditor.IPosition`
+ * is migrated.
+ */
+export interface IPosition {
+  /**
+   * Line number
+   */
+  line: number;
+
+  /**
+   * Position of character in line
+   */
+  ch: number;
+}
+
+/**
+ * is_* attributes are there only to enforce strict interface type checking
+ */
+export interface ISourcePosition extends IPosition {
+  isSource: true;
+}
+
+export interface IEditorPosition extends IPosition {
+  isEditor: true;
+}
+
+export interface IVirtualPosition extends IPosition {
+  isVirtual: true;
+}
+
+export interface IRootPosition extends ISourcePosition {
+  isRoot: true;
+}
+
+/**
+ * Compare two `IPosition` variable.
+ *
+ */
+export function isEqual(self: IPosition, other: IPosition): boolean {
+  return other && self.line === other.line && self.ch === other.ch;
+}
+
+/**
+ * Given a list of line and an offset from the start, compute the corresponding
+ * position in form of line and column number
+ *
+ * @param offset - number of spaces counted from the start of first line
+ * @param  lines - list of lines to compute the position
+ * @return  - the position of cursor
+ */
+export function positionAtOffset(
+  offset: number,
+  lines: string[]
+): CodeEditor.IPosition {
+  let line = 0;
+  let column = 0;
+  for (let textLine of lines) {
+    // each line has a new line symbol which is accounted for in offset!
+    if (textLine.length + 1 <= offset) {
+      offset -= textLine.length + 1;
+      line += 1;
+    } else {
+      column = offset;
+      break;
+    }
+  }
+  return { line, column };
+}
+
+/**
+ * Given a list of line and position in form of line and column number,
+ * compute the offset from the start of first line.
+ * @param position - postion of cursor
+ * @param  lines - list of lines to compute the position
+ * @param linesIncludeBreaks - should count the line break as space?
+ * return - offset number
+ */
+export function offsetAtPosition(
+  position: CodeEditor.IPosition,
+  lines: string[],
+  linesIncludeBreaks = false
+): number {
+  let breakIncrement = linesIncludeBreaks ? 0 : 1;
+  let offset = 0;
+  for (let i = 0; i < lines.length; i++) {
+    let textLine = lines[i];
+    if (position.line > i) {
+      offset += textLine.length + breakIncrement;
+    } else {
+      offset += position.column;
+      break;
+    }
+  }
+  return offset;
+}
+
+export namespace ProtocolCoordinates {
+  /**
+   * Check if the position is in the input range
+   *
+   * @param position - position in form of line and character number.
+   * @param  range - range in from of start and end position.
+   */
+  export function isWithinRange(
+    position: lsp.Position,
+    range: lsp.Range
+  ): boolean {
+    const { line, character } = position;
+    return (
+      line >= range.start.line &&
+      line <= range.end.line &&
+      // need to be non-overlapping see https://github.com/jupyter-lsp/jupyterlab-lsp/issues/628
+      (line != range.start.line || character > range.start.character) &&
+      (line != range.end.line || character <= range.end.character)
+    );
+  }
+}
diff --git a/packages/lsp/src/schema.ts b/packages/lsp/src/schema.ts
new file mode 100644
index 000000000000..6b3e8b8ebf31
--- /dev/null
+++ b/packages/lsp/src/schema.ts
@@ -0,0 +1,249 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+/* eslint-disable */
+
+/**
+ * This file was automatically generated by json-schema-to-typescript.
+ * DO NOT MODIFY IT BY HAND. Instead, modify the source JSONSchema file,
+ * and run jlpm build:schema to regenerate this file.
+ */
+
+/**
+ * which version of the spec this implements
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "current-version".
+ */
+export type SpecSchemaVersion = 2;
+/**
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "env-var".
+ *
+ * This interface was referenced by `EnvironmentVariables`'s JSON-Schema definition
+ * via the `patternProperty` "[^ ]+".
+ */
+export type AnEnvironmentVariableMayContainPythonStringTemplateEvaluatedAgainstTheExistingEnvironmentEG$HOME =
+  string;
+/**
+ * the install commands or description for installing the language server
+ *
+ * This interface was referenced by `Installation`'s JSON-Schema definition
+ * via the `patternProperty` ".+".
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "install-help".
+ *
+ * This interface was referenced by `Installation1`'s JSON-Schema definition
+ * via the `patternProperty` ".+".
+ */
+export type InstallHelp = string;
+/**
+ * languages supported by this Language Server
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "language-list".
+ */
+export type LanguageList = [string, ...string[]];
+/**
+ * a description of a language server that could be started
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "language-server-spec".
+ *
+ * This interface was referenced by `LanguageServerSpecsMap`'s JSON-Schema definition
+ * via the `patternProperty` ".*".
+ */
+export type LanguageServerSpec = ServerSpecProperties & {
+  [k: string]: any;
+};
+/**
+ * the arguments to start the language server normally
+ */
+export type LaunchArguments = string[];
+/**
+ * the arguments to start the language server with more verbose output
+ */
+export type DebugArguments = string[];
+/**
+ * name shown in the UI
+ */
+export type DisplayName = string;
+/**
+ * known extensions that can contribute to the Language Server's features
+ */
+export type Extensions = LanguageServerExtension[];
+/**
+ * list of MIME types supported by the language server
+ */
+export type MIMETypes = [string, ...string[]];
+/**
+ * information on troubleshooting the installation or auto-detection of the language server
+ */
+export type Troubleshooting = string;
+/**
+ * a date/time that might not have been recorded
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "nullable-date-time".
+ */
+export type NullableDateTime = string | null;
+/**
+ * the count of currently-connected WebSocket handlers
+ */
+export type HandlerCount = number;
+/**
+ * a list of tokens for running a command
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "shell-args".
+ */
+export type ShellArgs = string[];
+
+/**
+ * describes the current state of (potentially) running language servers
+ */
+export interface JupyterLspServerStatusResponse {
+  [k: string]: any;
+}
+/**
+ * a JSON schema to configure the Language Server or extension behavior from the client
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "client-config-schema".
+ */
+export interface ClientConfigurationSchema {
+  [k: string]: any;
+}
+/**
+ * a list of installation approaches keyed by package manager, e.g. pip, npm, yarn, apt
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "install-bundle".
+ */
+export interface Installation {
+  [k: string]: InstallHelp;
+}
+/**
+ * an extension which can extend the functionality of the language server and client
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "language-server-extension".
+ */
+export interface LanguageServerExtension {
+  config_schema?: ClientConfigurationSchema;
+  display_name?: string;
+  install?: Installation;
+  [k: string]: any;
+}
+/**
+ * all properties that might be required to start and/or describe a Language Server
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "partial-language-server-spec".
+ */
+export interface ServerSpecProperties {
+  argv?: LaunchArguments;
+  config_schema?: ClientConfigurationSchema1;
+  debug_argv?: DebugArguments;
+  display_name?: DisplayName;
+  env?: EnvironmentVariables;
+  extend?: Extensions;
+  /**
+   * Whether to write un-saved documents to disk in a transient `.virtual_documents` directory. Well-behaved language servers that work against in-memory files should set this to `false`, which will become the default in the future.
+   */
+  requires_documents_on_disk?: boolean;
+  install?: Installation1;
+  languages?: LanguageList;
+  mime_types?: MIMETypes;
+  troubleshoot?: Troubleshooting;
+  urls?: URLs;
+  version?: SpecSchemaVersion;
+  workspace_configuration?: WorkspaceConfiguration;
+  [k: string]: any;
+}
+/**
+ * a JSON schema to configure the Language Server behavior from the client
+ */
+export interface ClientConfigurationSchema1 {
+  [k: string]: any;
+}
+/**
+ * additional environment variables to set when starting the language server
+ */
+export interface EnvironmentVariables {
+  [
+    k: string
+  ]: AnEnvironmentVariableMayContainPythonStringTemplateEvaluatedAgainstTheExistingEnvironmentEG$HOME;
+}
+/**
+ * a list of installation approaches keyed by package manager, e.g. pip, npm, yarn, apt
+ */
+export interface Installation1 {
+  [k: string]: InstallHelp;
+}
+/**
+ * a collection of urls keyed by type, e.g. home, issues
+ */
+export interface URLs {
+  [k: string]: string;
+}
+/**
+ * default values to include in the client `workspace/configuration` reply (also known as `serverSettings`). User may override these defaults. The keys should be fully qualified (dotted) names of settings (nested specification is not supported).
+ */
+export interface WorkspaceConfiguration {
+  [k: string]: any;
+}
+/**
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "servers-response".
+ */
+export interface ServersResponse {
+  sessions: Sessions;
+  specs?: LanguageServerSpecsMap;
+  version: SpecSchemaVersion;
+  [k: string]: any;
+}
+/**
+ * named server sessions that are, could be, or were running
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "sessions".
+ */
+export interface Sessions {
+  [k: string]: LanguageServerSession;
+}
+/**
+ * a language server session
+ *
+ * This interface was referenced by `Sessions`'s JSON-Schema definition
+ * via the `patternProperty` ".*".
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "session".
+ */
+export interface LanguageServerSession {
+  handler_count: HandlerCount;
+  /**
+   * date-time of last seen message from a WebSocket handler
+   */
+  last_handler_message_at: string | null;
+  /**
+   * date-time of last seen message from the language server
+   */
+  last_server_message_at: string | null;
+  spec: ServerSpecProperties;
+  /**
+   * a string describing the current state of the server
+   */
+  status: 'not_started' | 'starting' | 'started' | 'stopping' | 'stopped';
+}
+/**
+ * a set of language servers keyed by their implementation name
+ *
+ * This interface was referenced by `JupyterLspServerStatusResponse`'s JSON-Schema
+ * via the `definition` "language-server-specs-implementation-map".
+ */
+export interface LanguageServerSpecsMap {
+  [k: string]: LanguageServerSpec;
+}
diff --git a/packages/lsp/src/tokens.ts b/packages/lsp/src/tokens.ts
new file mode 100644
index 000000000000..0dcb1de867a2
--- /dev/null
+++ b/packages/lsp/src/tokens.ts
@@ -0,0 +1,934 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { IDocumentWidget } from '@jupyterlab/docregistry';
+import { ServerConnection } from '@jupyterlab/services';
+import { Token } from '@lumino/coreutils';
+import { IDisposable, IObservableDisposable } from '@lumino/disposable';
+import { ISignal, Signal } from '@lumino/signaling';
+
+import { WidgetLSPAdapter } from './adapters/adapter';
+import { IForeignCodeExtractor } from './extractors/types';
+import {
+  AnyCompletion,
+  AnyLocation,
+  ClientCapabilities,
+  LanguageIdentifier
+} from './lsp';
+import { LanguageServer1 as LSPLanguageServerSettings } from './plugin';
+import * as SCHEMA from './schema';
+import { VirtualDocument } from './virtual/document';
+import {
+  IDocumentInfo,
+  ILspConnection,
+  ILspOptions
+} from './ws-connection/types';
+
+import type * as rpc from 'vscode-jsonrpc';
+import type * as lsp from 'vscode-languageserver-protocol';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+export { IDocumentInfo };
+
+/**
+ * Example server keys==ids that are expected. The list is not exhaustive.
+ * Custom server keys are allowed. Constraining the values helps avoid errors,
+ * but at runtime any value is allowed.
+ */
+export type TLanguageServerId =
+  | 'pylsp'
+  | 'bash-language-server'
+  | 'dockerfile-language-server-nodejs'
+  | 'javascript-typescript-langserver'
+  | 'unified-language-server'
+  | 'vscode-css-languageserver-bin'
+  | 'vscode-html-languageserver-bin'
+  | 'vscode-json-languageserver-bin'
+  | 'yaml-language-server'
+  | 'r-languageserver';
+
+/**
+ * Type alias for the server ids.
+ */
+export type TServerKeys = TLanguageServerId;
+
+/**
+ * Type of language server configuration, it is a map between server
+ * id and its setting.
+ */
+export type TLanguageServerConfigurations = Partial<
+  Record<TServerKeys, LSPLanguageServerSettings>
+>;
+
+/**
+ * Type of language server session, it is a map between server
+ * id and the associated session.
+ */
+export type TSessionMap = Map<TServerKeys, SCHEMA.LanguageServerSession>;
+
+/**
+ * Type of language server specs, it is a map between server
+ * id and the associated specs.
+ */
+export type TSpecsMap = Map<TServerKeys, SCHEMA.LanguageServerSpec>;
+
+/**
+ * Type alias for language server id, it helps to clarify other types.
+ */
+export type TLanguageId = string;
+
+export interface ILanguageServerManager extends IDisposable {
+  /**
+   * @alpha
+   *
+   * Signal emitted when the language server sessions are changed.
+   */
+  sessionsChanged: ISignal<ILanguageServerManager, void>;
+
+  /**
+   * @alpha
+   *
+   * The current session information of running language servers.
+   */
+  readonly sessions: TSessionMap;
+
+  /**
+   * @alpha
+   *
+   * Get server connection settings.
+   */
+  readonly settings: ServerConnection.ISettings;
+
+  /**
+   * @alpha
+   *
+   * A promise that is fulfilled when the connection manager is ready.
+   */
+  readonly ready: Promise<void>;
+
+  /**
+   * @alpha
+   *
+   * Current endpoint to get the status of running language servers
+   */
+  readonly statusUrl: string;
+
+  /**
+   * @alpha
+   *
+   * Status code of the `fetchSession` request.
+   */
+  readonly statusCode: number;
+
+  /**
+   * @alpha
+   *
+   * Check if the manager is enabled or disabled
+   */
+  readonly isEnabled: boolean;
+
+  /**
+   * @alpha
+   *
+   * Enable the language server services
+   */
+  enable(): Promise<void>;
+
+  /**
+   * @alpha
+   *
+   * Disable the language server services
+   */
+  disable(): void;
+
+  /**
+   * @alpha
+   *
+   * An ordered list of matching >running< sessions, with servers of higher rank higher in the list
+   */
+  getMatchingServers(
+    options: ILanguageServerManager.IGetServerIdOptions
+  ): TLanguageServerId[];
+
+  /**
+   * @alpha
+   *
+   * A list of all known matching specs (whether detected or not).
+   */
+  getMatchingSpecs(
+    options: ILanguageServerManager.IGetServerIdOptions
+  ): TSpecsMap;
+
+  /**
+   * @alpha
+   *
+   * Set the configuration for language servers
+   */
+  setConfiguration(configuration: TLanguageServerConfigurations): void;
+
+  /**
+   * @alpha
+   *
+   * Send a request to language server handler to get the session information.
+   */
+  fetchSessions(): Promise<void>;
+}
+
+/**
+ * Virtual document namespace
+ */
+export namespace Document {
+  /**
+   * Code block description.
+   */
+  export interface ICodeBlockOptions {
+    /**
+     * CodeEditor accessor
+     */
+    ceEditor: IEditor;
+
+    /**
+     * Type of the cell holding this block
+     */
+    type: string;
+
+    /**
+     * Editor text
+     *
+     * #### Notes
+     * This must always be available and should come from the document model directly.
+     */
+    value: string;
+  }
+
+  /**
+   * Code editor accessor.
+   */
+  export interface IEditor {
+    /**
+     * CodeEditor getter.
+     *
+     * It will return `null` if the editor is not yet instantiated;
+     * e.g. to support windowed notebook.
+     */
+    getEditor(): CodeEditor.IEditor | null;
+
+    /**
+     * Promise getter that resolved when the editor is instantiated.
+     */
+    ready(): Promise<CodeEditor.IEditor>;
+
+    /**
+     * Reveal the code editor in viewport.
+     *
+     * ### Notes
+     * The promise will resolve when the editor is instantiated and in
+     * the viewport.
+     */
+    reveal(): Promise<CodeEditor.IEditor>;
+  }
+
+  /**
+   * Foreign context within code block.
+   */
+  export interface IForeignContext {
+    /**
+     * The virtual document
+     */
+    foreignDocument: VirtualDocument;
+
+    /**
+     * The document holding the virtual document.
+     */
+    parentHost: VirtualDocument;
+  }
+
+  /**
+   * Virtual document block.
+   */
+  export interface IVirtualDocumentBlock {
+    /**
+     * Line corresponding to the block in the entire foreign document
+     */
+    virtualLine: number;
+
+    /**
+     * The virtual document holding this virtual line.
+     */
+    virtualDocument: VirtualDocument;
+
+    /**
+     * The CM editor associated with this virtual line.
+     */
+    editor: IEditor;
+  }
+}
+
+export namespace ILanguageServerManager {
+  /**
+   * LSP endpoint prefix.
+   */
+  export const URL_NS = 'lsp';
+
+  export interface IOptions {
+    /**
+     * The Jupyter server settings objec
+     */
+    settings?: ServerConnection.ISettings;
+
+    /**
+     * Base URL of current JupyterLab server.
+     */
+    baseUrl?: string;
+
+    /**
+     * Number of connection retries to fetch the sessions.
+     * Default 2.
+     */
+    retries?: number;
+
+    /**
+     * The interval for retries, default 10 seconds.
+     */
+    retriesInterval?: number;
+  }
+  /**
+   * The argument for getting server session or specs.
+   */
+  export interface IGetServerIdOptions {
+    /**
+     * Language server id
+     */
+    language?: TLanguageId;
+
+    /**
+     * Server specs mime type.
+     */
+    mimeType?: string;
+  }
+}
+
+/**
+ * Option to create the websocket connection to the LSP proxy server
+ * on the backend.
+ */
+export interface ISocketConnectionOptions {
+  /**
+   * The virtual document trying to connect to the LSP server.
+   */
+  virtualDocument: VirtualDocument;
+
+  /**
+   * The language identifier, corresponding to the API endpoint on the
+   * LSP proxy server.
+   */
+  language: string;
+
+  /**
+   * LSP capabilities describing currently supported features
+   */
+  capabilities: ClientCapabilities;
+
+  /**
+   * Is the file format is supported by LSP?
+   */
+  hasLspSupportedFile: boolean;
+}
+
+/**
+ * @alpha
+ *
+ * Interface describing the LSP connection state
+ */
+export interface IDocumentConnectionData {
+  /**
+   * The virtual document connected to the language server
+   */
+  virtualDocument: VirtualDocument;
+  /**
+   * The connection between the virtual document and the language server.
+   */
+  connection: ILSPConnection;
+}
+
+/**
+ * @alpha
+ *
+ * The LSP connection state manager
+ */
+export interface ILSPDocumentConnectionManager {
+  /**
+   * The mapping of document uri to the  connection to language server.
+   */
+  connections: Map<VirtualDocument.uri, ILSPConnection>;
+
+  /**
+   * The mapping of document uri to the virtual document.
+   */
+  documents: Map<VirtualDocument.uri, VirtualDocument>;
+
+  /**
+   * The mapping of document uri to the widget adapter.
+   */
+  adapters: Map<string, WidgetLSPAdapter<IDocumentWidget>>;
+
+  /**
+   * Signal emitted when a connection is connected.
+   */
+  connected: ISignal<ILSPDocumentConnectionManager, IDocumentConnectionData>;
+
+  /**
+   * Signal emitted when a connection is disconnected.
+   */
+  disconnected: ISignal<ILSPDocumentConnectionManager, IDocumentConnectionData>;
+
+  /**
+   * Signal emitted when the language server is initialized.
+   */
+  initialized: ISignal<ILSPDocumentConnectionManager, IDocumentConnectionData>;
+
+  /**
+   * Signal emitted when a virtual document is closed.
+   */
+  closed: ISignal<ILSPDocumentConnectionManager, IDocumentConnectionData>;
+
+  /**
+   * Signal emitted when the content of a virtual document is changed.
+   */
+  documentsChanged: ISignal<
+    ILSPDocumentConnectionManager,
+    Map<VirtualDocument.uri, VirtualDocument>
+  >;
+
+  /**
+   * The language server manager instance.
+   */
+  languageServerManager: ILanguageServerManager;
+
+  /**
+   * A promise that is fulfilled when the connection manager is ready.
+   */
+  readonly ready: Promise<void>;
+
+  /**
+   * Initial configuration for the language servers.
+   */
+  initialConfigurations: TLanguageServerConfigurations;
+
+  /**
+   * Handles the settings that do not require an existing connection
+   * with a language server (or can influence to which server the
+   * connection will be created, e.g. `rank`).
+   *
+   * This function should be called **before** initialization of servers.
+   */
+  updateConfiguration(allServerSettings: TLanguageServerConfigurations): void;
+
+  /**
+   * Enable or disable the logging of language server communication.
+   */
+  updateLogging(logAllCommunication: boolean, setTrace: lsp.TraceValues): void;
+
+  /**
+   * Handles the settings that the language servers accept using
+   * `onDidChangeConfiguration` messages, which should be passed under
+   * the "serverSettings" keyword in the setting registry.
+   * Other configuration options are handled by `updateConfiguration` instead.
+   *
+   * This function should be called **after** initialization of servers.
+   */
+  updateServerConfigurations(
+    allServerSettings: TLanguageServerConfigurations
+  ): void;
+
+  /**
+   * Retry to connect to the server each `reconnectDelay` seconds
+   * and for `retrialsLeft` times.
+   */
+  retryToConnect(
+    options: ISocketConnectionOptions,
+    reconnectDelay: number,
+    retrialsLeft: number
+  ): Promise<void>;
+
+  /**
+   * Create a new connection to the language server
+   * @return A promise of the LSP connection
+   */
+  connect(
+    options: ISocketConnectionOptions,
+    firstTimeoutSeconds?: number,
+    secondTimeoutMinute?: number
+  ): Promise<ILSPConnection | undefined>;
+
+  /**
+   * Disconnect the connection to the language server of the requested
+   * language.
+   */
+  disconnect(languageId: TLanguageServerId): void;
+
+  /**
+   * Disconnect the signals of requested virtual document uri.
+   */
+  unregisterDocument(uri: string): void;
+
+  /**
+   * Register a widget adapter.
+   *
+   * @param  path - path to current document widget of input adapter
+   * @param  adapter - the adapter need to be registered
+   */
+  registerAdapter(
+    path: string,
+    adapter: WidgetLSPAdapter<IDocumentWidget>
+  ): void;
+}
+
+/**
+ * @alpha
+ *
+ * Interface describing the client feature
+ */
+export interface IFeature {
+  /**
+   * The feature identifier. It must be the same as the feature plugin id.
+   */
+  id: string;
+
+  /**
+   * LSP capabilities implemented by the feature.
+   */
+  capabilities?: ClientCapabilities;
+}
+
+/**
+ * @alpha
+ *
+ * The LSP feature manager
+ */
+export interface ILSPFeatureManager {
+  /**
+   * A read-only registry of all registered features.
+   */
+  readonly features: IFeature[];
+
+  /**
+   * Register the new feature (frontend capability)
+   * for one or more code editor implementations.
+   */
+  register(feature: IFeature): void;
+
+  /**
+   * Signal emitted when a feature is registered
+   */
+  featuresRegistered: ISignal<ILSPFeatureManager, IFeature>;
+
+  /**
+   * Get capabilities of all registered features
+   */
+  clientCapabilities(): ClientCapabilities;
+}
+
+/**
+ * @alpha
+ *
+ * Manages code transclusion plugins.
+ */
+export interface ILSPCodeExtractorsManager {
+  /**
+   * Get the foreign code extractors.
+   */
+  getExtractors(
+    cellType: string,
+    hostLanguage: string | null
+  ): IForeignCodeExtractor[];
+
+  /**
+   * Register the extraction rules to be applied in documents with language `host_language`.
+   */
+  register(
+    extractor: IForeignCodeExtractor,
+    hostLanguage: LanguageIdentifier | null
+  ): void;
+}
+
+/**
+ * @alpha
+ *
+ * The virtual documents and language server connections manager
+ * Require this token in your extension to access the associated virtual
+ * document and LS connection of opened documents.
+ *
+ */
+export const ILSPDocumentConnectionManager =
+  new Token<ILSPDocumentConnectionManager>(
+    '@jupyterlab/lsp:ILSPDocumentConnectionManager',
+    'Provides the virtual documents and language server connections service.'
+  );
+
+/**
+ * @alpha
+ *
+ * The language server feature manager. Require this token in your extension
+ * to register the client capabilities implemented by your extension.
+ *
+ */
+export const ILSPFeatureManager = new Token<ILSPFeatureManager>(
+  '@jupyterlab/lsp:ILSPFeatureManager',
+  'Provides the language server feature manager. This token is required to register new client capabilities.'
+);
+
+/**
+ * @alpha
+ *
+ * The code extractor manager. Require this token in your extension to
+ * register new code extractors. Code extractor allows creating multiple
+ * virtual documents from an opened document.
+ *
+ */
+export const ILSPCodeExtractorsManager = new Token<ILSPCodeExtractorsManager>(
+  '@jupyterlab/lsp:ILSPCodeExtractorsManager',
+  'Provides the code extractor manager. This token is required in your extension to register code extractor allowing the creation of multiple virtual document from an opened document.'
+);
+
+/**
+ * Argument for creating a connection to the LSP proxy server.
+ */
+export interface ILSPOptions extends ILspOptions {
+  /**
+   * Client capabilities implemented by the client.
+   */
+  capabilities: ClientCapabilities;
+
+  /**
+   * Language server id.
+   */
+  serverIdentifier?: string;
+}
+
+/**
+ * Method strings are reproduced here because a non-typing import of
+ * `vscode-languageserver-protocol` is ridiculously expensive.
+ */
+export namespace Method {
+  /** Server notifications */
+  export enum ServerNotification {
+    PUBLISH_DIAGNOSTICS = 'textDocument/publishDiagnostics',
+    SHOW_MESSAGE = 'window/showMessage',
+    LOG_TRACE = '$/logTrace',
+    LOG_MESSAGE = 'window/logMessage'
+  }
+
+  /** Client notifications */
+  export enum ClientNotification {
+    DID_CHANGE = 'textDocument/didChange',
+    DID_CHANGE_CONFIGURATION = 'workspace/didChangeConfiguration',
+    DID_OPEN = 'textDocument/didOpen',
+    DID_SAVE = 'textDocument/didSave',
+    INITIALIZED = 'initialized',
+    SET_TRACE = '$/setTrace'
+  }
+
+  /** Server requests */
+  export enum ServerRequest {
+    REGISTER_CAPABILITY = 'client/registerCapability',
+    SHOW_MESSAGE_REQUEST = 'window/showMessageRequest',
+    UNREGISTER_CAPABILITY = 'client/unregisterCapability',
+    WORKSPACE_CONFIGURATION = 'workspace/configuration'
+  }
+
+  /** Client requests */
+  export enum ClientRequest {
+    CODE_ACTION = 'textDocument/codeAction',
+    COMPLETION = 'textDocument/completion',
+    COMPLETION_ITEM_RESOLVE = 'completionItem/resolve',
+    DEFINITION = 'textDocument/definition',
+    DOCUMENT_COLOR = 'textDocument/documentColor',
+    DOCUMENT_HIGHLIGHT = 'textDocument/documentHighlight',
+    DOCUMENT_SYMBOL = 'textDocument/documentSymbol',
+    HOVER = 'textDocument/hover',
+    IMPLEMENTATION = 'textDocument/implementation',
+    INITIALIZE = 'initialize',
+    REFERENCES = 'textDocument/references',
+    RENAME = 'textDocument/rename',
+    SIGNATURE_HELP = 'textDocument/signatureHelp',
+    TYPE_DEFINITION = 'textDocument/typeDefinition',
+    LINKED_EDITING_RANGE = 'textDocument/linkedEditingRange',
+    INLINE_VALUE = 'textDocument/inlineValue',
+    INLAY_HINT = 'textDocument/inlayHint',
+    WORKSPACE_SYMBOL = 'workspace/symbol',
+    WORKSPACE_SYMBOL_RESOLVE = 'workspaceSymbol/resolve',
+    FORMATTING = 'textDocument/formatting',
+    RANGE_FORMATTING = 'textDocument/rangeFormatting'
+  }
+}
+
+/**
+ * Interface describing the notifications that come from the server.
+ */
+export interface IServerNotifyParams {
+  [Method.ServerNotification.LOG_MESSAGE]: lsp.LogMessageParams;
+  [Method.ServerNotification.LOG_TRACE]: rpc.LogTraceParams;
+  [Method.ServerNotification.PUBLISH_DIAGNOSTICS]: lsp.PublishDiagnosticsParams;
+  [Method.ServerNotification.SHOW_MESSAGE]: lsp.ShowMessageParams;
+}
+
+/**
+ * Interface describing the notifications that come from the client.
+ */
+export interface IClientNotifyParams {
+  [Method.ClientNotification
+    .DID_CHANGE_CONFIGURATION]: lsp.DidChangeConfigurationParams;
+  [Method.ClientNotification.DID_CHANGE]: lsp.DidChangeTextDocumentParams;
+  [Method.ClientNotification.DID_OPEN]: lsp.DidOpenTextDocumentParams;
+  [Method.ClientNotification.DID_SAVE]: lsp.DidSaveTextDocumentParams;
+  [Method.ClientNotification.INITIALIZED]: lsp.InitializedParams;
+  [Method.ClientNotification.SET_TRACE]: rpc.SetTraceParams;
+}
+
+/**
+ * Interface describing the requests sent to the server.
+ */
+export interface IServerRequestParams {
+  [Method.ServerRequest.REGISTER_CAPABILITY]: lsp.RegistrationParams;
+  [Method.ServerRequest.SHOW_MESSAGE_REQUEST]: lsp.ShowMessageRequestParams;
+  [Method.ServerRequest.UNREGISTER_CAPABILITY]: lsp.UnregistrationParams;
+  [Method.ServerRequest.WORKSPACE_CONFIGURATION]: lsp.ConfigurationParams;
+}
+
+/**
+ * Interface describing the responses received from the server.
+ */
+export interface IServerResult {
+  [Method.ServerRequest.REGISTER_CAPABILITY]: void;
+  [Method.ServerRequest.SHOW_MESSAGE_REQUEST]: lsp.MessageActionItem | null;
+  [Method.ServerRequest.UNREGISTER_CAPABILITY]: void;
+  [Method.ServerRequest.WORKSPACE_CONFIGURATION]: any[];
+}
+
+/**
+ * Interface describing the request sent to the client.
+ */
+export interface IClientRequestParams {
+  [Method.ClientRequest.CODE_ACTION]: lsp.CodeActionParams;
+  [Method.ClientRequest.COMPLETION_ITEM_RESOLVE]: lsp.CompletionItem;
+  [Method.ClientRequest.COMPLETION]: lsp.CompletionParams;
+  [Method.ClientRequest.DEFINITION]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.DOCUMENT_COLOR]: lsp.DocumentColorParams;
+  [Method.ClientRequest.DOCUMENT_HIGHLIGHT]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.DOCUMENT_SYMBOL]: lsp.DocumentSymbolParams;
+  [Method.ClientRequest.HOVER]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.IMPLEMENTATION]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.INITIALIZE]: lsp.InitializeParams;
+  [Method.ClientRequest.REFERENCES]: lsp.ReferenceParams;
+  [Method.ClientRequest.RENAME]: lsp.RenameParams;
+  [Method.ClientRequest.SIGNATURE_HELP]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.TYPE_DEFINITION]: lsp.TextDocumentPositionParams;
+  [Method.ClientRequest.INLINE_VALUE]: lsp.InlineValueParams;
+  [Method.ClientRequest.INLAY_HINT]: lsp.InlayHintParams;
+  [Method.ClientRequest.WORKSPACE_SYMBOL]: lsp.WorkspaceSymbolParams;
+  [Method.ClientRequest.WORKSPACE_SYMBOL_RESOLVE]: lsp.WorkspaceSymbol;
+  [Method.ClientRequest.FORMATTING]: lsp.DocumentFormattingParams;
+  [Method.ClientRequest.RANGE_FORMATTING]: lsp.DocumentRangeFormattingParams;
+}
+
+/**
+ * Interface describing the responses received from the client.
+ */
+export interface IClientResult {
+  [Method.ClientRequest.CODE_ACTION]: (lsp.Command | lsp.CodeAction)[] | null;
+  [Method.ClientRequest.COMPLETION_ITEM_RESOLVE]: lsp.CompletionItem;
+  [Method.ClientRequest.COMPLETION]: AnyCompletion;
+  [Method.ClientRequest.DEFINITION]: AnyLocation;
+  [Method.ClientRequest.DOCUMENT_COLOR]: lsp.ColorInformation[];
+  [Method.ClientRequest.DOCUMENT_HIGHLIGHT]: lsp.DocumentHighlight[];
+  [Method.ClientRequest.DOCUMENT_SYMBOL]: lsp.DocumentSymbol[];
+  [Method.ClientRequest.HOVER]: lsp.Hover | null;
+  [Method.ClientRequest.IMPLEMENTATION]: AnyLocation;
+  [Method.ClientRequest.INITIALIZE]: lsp.InitializeResult;
+  [Method.ClientRequest.REFERENCES]: lsp.Location[] | null;
+  [Method.ClientRequest.RENAME]: lsp.WorkspaceEdit;
+  [Method.ClientRequest.SIGNATURE_HELP]: lsp.SignatureHelp;
+  [Method.ClientRequest.TYPE_DEFINITION]: AnyLocation;
+  [Method.ClientRequest.INLINE_VALUE]: lsp.InlineValue[] | null;
+  [Method.ClientRequest.INLAY_HINT]: lsp.InlayHint[] | null;
+  [Method.ClientRequest.WORKSPACE_SYMBOL]:
+    | lsp.SymbolInformation[]
+    | lsp.WorkspaceSymbol[]
+    | null;
+  [Method.ClientRequest.WORKSPACE_SYMBOL_RESOLVE]: lsp.WorkspaceSymbol[];
+  [Method.ClientRequest.FORMATTING]: lsp.TextEdit[] | null;
+  [Method.ClientRequest.RANGE_FORMATTING]: lsp.TextEdit[] | null;
+}
+
+/**
+ * Type of server notification handlers, it is a map between the server
+ * notification name and the associated `ISignal`.
+ */
+export type ServerNotifications<
+  T extends keyof IServerNotifyParams = keyof IServerNotifyParams
+> = {
+  readonly [key in T]: ISignal<ILSPConnection, IServerNotifyParams[key]>;
+};
+
+/**
+ * Type of client notification handlers, it is a map between the client
+ * notification name and the associated signal.
+ */
+export type ClientNotifications<
+  T extends keyof IClientNotifyParams = keyof IClientNotifyParams
+> = {
+  readonly [key in T]: Signal<ILSPConnection, IClientNotifyParams[key]>;
+};
+
+/**
+ * Interface describing the client request handler.
+ */
+export interface IClientRequestHandler<
+  T extends keyof IClientRequestParams = keyof IClientRequestParams
+> {
+  request(params: IClientRequestParams[T]): Promise<IClientResult[T]>;
+}
+
+/**
+ * Interface describing the server request handler.
+ */
+export interface IServerRequestHandler<
+  T extends keyof IServerRequestParams = keyof IServerRequestParams
+> {
+  setHandler(
+    handler: (
+      params: IServerRequestParams[T],
+      connection?: ILSPConnection
+    ) => Promise<IServerResult[T]>
+  ): void;
+  clearHandler(): void;
+}
+
+/**
+ * Type of client request handlers, it is a map between the client
+ * request name and the associated handler.
+ */
+export type ClientRequests<
+  T extends keyof IClientRequestParams = keyof IClientRequestParams
+> = {
+  // has async request(params) returning a promise with result.
+  readonly [key in T]: IClientRequestHandler<key>;
+};
+
+/**
+ * Type of server request handlers, it is a map between the server
+ * request name and the associated handler.
+ */
+export type ServerRequests<
+  T extends keyof IServerRequestParams = keyof IServerRequestParams
+> = {
+  // has async request(params) returning a promise with result.
+  readonly [key in T]: IServerRequestHandler<key>;
+};
+
+/**
+ * @alpha
+ *
+ * Interface describing he connection to the language server.
+ */
+export interface ILSPConnection extends ILspConnection, IObservableDisposable {
+  /**
+   * @alpha
+   *
+   * Identifier of the language server
+   */
+  serverIdentifier?: string;
+
+  /**
+   * @alpha
+   *
+   * Language of the language server
+   */
+  serverLanguage?: string;
+
+  /**
+   * @alpha
+   *
+   * Should log all communication?
+   */
+  logAllCommunication: boolean;
+
+  /**
+   * @alpha
+   *
+   * Notifications that come from the client.
+   */
+  clientNotifications: ClientNotifications;
+
+  /**
+   * @alpha
+   *
+   * Notifications that come from the server.
+   */
+  serverNotifications: ServerNotifications;
+
+  /**
+   * @alpha
+   *
+   * Requests that come from the client.
+   */
+  clientRequests: ClientRequests;
+
+  /**
+   * @alpha
+   *
+   * Responses that come from the server.
+   */
+  serverRequests: ServerRequests;
+
+  /**
+   * @alpha
+   *
+   * Signal emitted when the connection is closed.
+   */
+  closeSignal: ISignal<ILSPConnection, boolean>;
+
+  /**
+   * @alpha
+   *
+   * Signal emitted when the connection receives an error
+   * message..
+   */
+  errorSignal: ISignal<ILSPConnection, any>;
+
+  /**
+   * @alpha
+   *
+   * Check if a capability is available in the server capabilities.
+   */
+  provides(capability: keyof lsp.ServerCapabilities): boolean;
+
+  /**
+   * @alpha
+   *
+   * Lists server capabilities.
+   */
+  serverCapabilities: lsp.ServerCapabilities;
+
+  /**
+   * @alpha
+   *
+   * Signal emitted when the connection is initialized.
+   */
+  serverInitialized: ISignal<ILSPConnection, lsp.ServerCapabilities<any>>;
+
+  /**
+   * @alpha
+   *
+   * Send the open request to the backend when the server is
+   * ready.
+   */
+  sendOpenWhenReady(documentInfo: IDocumentInfo): void;
+
+  /**
+   * @alpha
+   *
+   * Send all changes to the server.
+   */
+  sendFullTextChange(text: string, documentInfo: IDocumentInfo): void;
+}
diff --git a/packages/lsp/src/utils.ts b/packages/lsp/src/utils.ts
new file mode 100644
index 000000000000..81f45dd268c0
--- /dev/null
+++ b/packages/lsp/src/utils.ts
@@ -0,0 +1,106 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ReadonlyJSONObject, ReadonlyJSONValue } from '@lumino/coreutils';
+import mergeWith from 'lodash.mergewith';
+
+/**
+ * Helper to wait for timeout.
+ *
+ * @param  timeout - time out in ms
+ */
+export async function sleep(timeout: number): Promise<void> {
+  return new Promise<void>(resolve => {
+    setTimeout(() => {
+      resolve();
+    }, timeout);
+  });
+}
+
+/**
+ * Wait for an event by pooling the `isReady` function.
+ */
+export function untilReady(
+  isReady: CallableFunction,
+  maxRetrials: number = 35,
+  interval = 50,
+  intervalModifier = (i: number) => i
+): Promise<CallableFunction> {
+  return (async () => {
+    let i = 0;
+    while (isReady() !== true) {
+      i += 1;
+      if (maxRetrials !== -1 && i > maxRetrials) {
+        throw Error('Too many retrials');
+      }
+      interval = intervalModifier(interval);
+      await sleep(interval);
+    }
+    return isReady;
+  })();
+}
+
+/**
+ * Convert dotted path into dictionary.
+ */
+export function expandDottedPaths(obj: ReadonlyJSONObject): ReadonlyJSONObject {
+  const settings: any = [];
+  for (let key in obj) {
+    const parsed = expandPath(key.split('.'), obj[key]);
+    settings.push(parsed);
+  }
+  return mergeWith({}, ...settings);
+}
+
+/**
+ * The docs for many language servers show settings in the
+ * VSCode format, e.g.: "pyls.plugins.pyflakes.enabled"
+ *
+ * VSCode converts that dot notation to JSON behind the scenes,
+ * as the language servers themselves don't accept that syntax.
+ */
+export const expandPath = (
+  path: string[],
+  value: ReadonlyJSONValue
+): ReadonlyJSONObject => {
+  const obj: any = Object.create(null);
+
+  let curr = obj;
+  path.forEach((prop: string, i: any) => {
+    curr[prop] = Object.create(null);
+
+    if (i === path.length - 1) {
+      curr[prop] = value;
+    } else {
+      curr = curr[prop];
+    }
+  });
+
+  return obj;
+};
+
+/**
+ * An extended map which will create value for key on the fly.
+ */
+export class DefaultMap<K, V> extends Map<K, V> {
+  constructor(
+    private defaultFactory: (...args: any[]) => V,
+    entries?: ReadonlyArray<readonly [K, V]> | null
+  ) {
+    super(entries);
+  }
+
+  get(k: K): V {
+    return this.getOrCreate(k);
+  }
+
+  getOrCreate(k: K, ...args: any[]): V {
+    if (this.has(k)) {
+      return super.get(k)!;
+    } else {
+      let v = this.defaultFactory(k, ...args);
+      this.set(k, v);
+      return v;
+    }
+  }
+}
diff --git a/packages/lsp/src/virtual/document.ts b/packages/lsp/src/virtual/document.ts
new file mode 100644
index 000000000000..4acc1ae782c1
--- /dev/null
+++ b/packages/lsp/src/virtual/document.ts
@@ -0,0 +1,1305 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { IDisposable } from '@lumino/disposable';
+import { IDocumentInfo } from '../ws-connection/types';
+import { IPosition } from '../positioning';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import { ISignal, Signal } from '@lumino/signaling';
+
+import { Document, ILSPCodeExtractorsManager } from '../tokens';
+import { DocumentConnectionManager } from '../connection_manager';
+import { IForeignCodeExtractor } from '../extractors/types';
+import { LanguageIdentifier } from '../lsp';
+import {
+  IEditorPosition,
+  IRootPosition,
+  ISourcePosition,
+  IVirtualPosition
+} from '../positioning';
+import { DefaultMap, untilReady } from '../utils';
+
+type IRange = CodeEditor.IRange;
+
+type language = string;
+
+interface IVirtualLine {
+  /**
+   * Inspections for which document should be skipped for this virtual line?
+   */
+  skipInspect: Array<VirtualDocument.idPath>;
+
+  /**
+   * Where does the virtual line belongs to in the source document?
+   */
+  sourceLine: number | null;
+
+  /**
+   * The editor holding this virtual line
+   */
+  editor: Document.IEditor;
+}
+
+export type ForeignDocumentsMap = Map<IRange, Document.IVirtualDocumentBlock>;
+
+interface ISourceLine {
+  /**
+   * Line corresponding to the block in the entire foreign document
+   */
+  virtualLine: number;
+
+  /**
+   * The CM editor associated with this virtual line.
+   */
+  editor: Document.IEditor;
+
+  /**
+   * Line in the CM editor corresponding to the virtual line.
+   */
+  editorLine: number;
+
+  /**
+   * Shift of the virtual line
+   */
+  editorShift: CodeEditor.IPosition;
+
+  /**
+   * Everything which is not in the range of foreign documents belongs to the host.
+   */
+  foreignDocumentsMap: ForeignDocumentsMap;
+}
+
+/**
+ * Check if given position is within range.
+ * Both start and end are inclusive.
+ * @param position
+ * @param range
+ */
+export function isWithinRange(
+  position: CodeEditor.IPosition,
+  range: CodeEditor.IRange
+): boolean {
+  if (range.start.line === range.end.line) {
+    return (
+      position.line === range.start.line &&
+      position.column >= range.start.column &&
+      position.column <= range.end.column
+    );
+  }
+
+  return (
+    (position.line === range.start.line &&
+      position.column >= range.start.column &&
+      position.line < range.end.line) ||
+    (position.line > range.start.line &&
+      position.column <= range.end.column &&
+      position.line === range.end.line) ||
+    (position.line > range.start.line && position.line < range.end.line)
+  );
+}
+
+/**
+ * A virtual implementation of IDocumentInfo
+ */
+export class VirtualDocumentInfo implements IDocumentInfo {
+  /**
+   * Creates an instance of VirtualDocumentInfo.
+   * @param document - the virtual document need to
+   * be wrapped.
+   */
+  constructor(document: VirtualDocument) {
+    this._document = document;
+  }
+
+  /**
+   * Current version of the virtual document.
+   */
+  version = 0;
+
+  /**
+   * Get the text content of the virtual document.
+   */
+  get text(): string {
+    return this._document.value;
+  }
+
+  /**
+   * Get the uri of the virtual document, if the document is not available,
+   * it returns an empty string, users need to check for the length of returned
+   * value before using it.
+   */
+  get uri(): string {
+    const uris = DocumentConnectionManager.solveUris(
+      this._document,
+      this.languageId
+    );
+    if (!uris) {
+      return '';
+    }
+    return uris.document;
+  }
+
+  /**
+   * Get the language identifier of the document.
+   */
+  get languageId(): string {
+    return this._document.language;
+  }
+
+  /**
+   * The wrapped virtual document.
+   */
+  private _document: VirtualDocument;
+}
+
+export namespace VirtualDocument {
+  export interface IOptions {
+    /**
+     * The language identifier of the document.
+     */
+    language: LanguageIdentifier;
+
+    /**
+     * The foreign code extractor manager token.
+     */
+    foreignCodeExtractors: ILSPCodeExtractorsManager;
+
+    /**
+     * Path to the document.
+     */
+    path: string;
+
+    /**
+     * File extension of the document.
+     */
+    fileExtension: string | undefined;
+
+    /**
+     * Notebooks or any other aggregates of documents are not supported
+     * by the LSP specification, and we need to make appropriate
+     * adjustments for them, pretending they are simple files
+     * so that the LSP servers do not refuse to cooperate.
+     */
+    hasLspSupportedFile: boolean;
+
+    /**
+     * Being standalone is relevant to foreign documents
+     * and defines whether following chunks of code in the same
+     * language should be appended to this document (false, not standalone)
+     * or should be considered separate documents (true, standalone)
+     *
+     */
+    standalone?: boolean;
+
+    /**
+     * Parent of the current virtual document.
+     */
+    parent?: VirtualDocument;
+  }
+}
+
+/**
+ *
+ * A notebook can hold one or more virtual documents; there is always one,
+ * "root" document, corresponding to the language of the kernel. All other
+ * virtual documents are extracted out of the notebook, based on magics,
+ * or other syntax constructs, depending on the kernel language.
+ *
+ * Virtual documents represent the underlying code in a single language,
+ * which has been parsed excluding interactive kernel commands (magics)
+ * which could be misunderstood by the specific LSP server.
+ *
+ * VirtualDocument has no awareness of the notebook or editor it lives in,
+ * however it is able to transform its content back to the notebook space,
+ * as it keeps editor coordinates for each virtual line.
+ *
+ * The notebook/editor aware transformations are preferred to be placed in
+ * VirtualEditor descendants rather than here.
+ *
+ * No dependency on editor implementation (such as CodeMirrorEditor)
+ * is allowed for VirtualEditor.
+ */
+export class VirtualDocument implements IDisposable {
+  constructor(options: VirtualDocument.IOptions) {
+    this.options = options;
+    this.path = this.options.path;
+    this.fileExtension = options.fileExtension;
+    this.hasLspSupportedFile = options.hasLspSupportedFile;
+    this.parent = options.parent;
+    this.language = options.language;
+
+    this.virtualLines = new Map();
+    this.sourceLines = new Map();
+    this.foreignDocuments = new Map();
+    this._editorToSourceLine = new Map();
+    this._foreignCodeExtractors = options.foreignCodeExtractors;
+    this.standalone = options.standalone || false;
+    this.instanceId = VirtualDocument.instancesCount;
+    VirtualDocument.instancesCount += 1;
+    this.unusedStandaloneDocuments = new DefaultMap(
+      () => new Array<VirtualDocument>()
+    );
+    this._remainingLifetime = 6;
+
+    this.documentInfo = new VirtualDocumentInfo(this);
+    this.updateManager = new UpdateManager(this);
+    this.updateManager.updateBegan.connect(this._updateBeganSlot, this);
+    this.updateManager.blockAdded.connect(this._blockAddedSlot, this);
+    this.updateManager.updateFinished.connect(this._updateFinishedSlot, this);
+    this.clear();
+  }
+
+  /**
+   * Convert from code editor position into code mirror position.
+   */
+  static ceToCm(position: CodeEditor.IPosition): IPosition {
+    return { line: position.line, ch: position.column };
+  }
+
+  /**
+   * Number of blank lines appended to the virtual document between
+   * each cell.
+   */
+  blankLinesBetweenCells: number = 2;
+
+  /**
+   * Line number of the last line in the real document.
+   */
+  lastSourceLine: number;
+
+  /**
+   * Line number of the last line in the virtual document.
+   */
+  lastVirtualLine: number;
+
+  /**
+   * the remote document uri, version and other server-related info
+   */
+  documentInfo: IDocumentInfo;
+
+  /**
+   * Parent of the current virtual document.
+   */
+  parent?: VirtualDocument | null;
+
+  /**
+   * The language identifier of the document.
+   */
+  readonly language: string;
+
+  /**
+   * Being standalone is relevant to foreign documents
+   * and defines whether following chunks of code in the same
+   * language should be appended to this document (false, not standalone)
+   * or should be considered separate documents (true, standalone)
+   */
+  readonly standalone: boolean;
+
+  /**
+   * Path to the document.
+   */
+  readonly path: string;
+
+  /**
+   * File extension of the document.
+   */
+  readonly fileExtension: string | undefined;
+
+  /**
+   * Notebooks or any other aggregates of documents are not supported
+   * by the LSP specification, and we need to make appropriate
+   * adjustments for them, pretending they are simple files
+   * so that the LSP servers do not refuse to cooperate.
+   */
+  readonly hasLspSupportedFile: boolean;
+
+  /**
+   * Map holding the children `VirtualDocument` .
+   */
+  readonly foreignDocuments: Map<VirtualDocument.virtualId, VirtualDocument>;
+
+  /**
+   * The update manager object.
+   */
+  readonly updateManager: UpdateManager;
+
+  /**
+   * Unique id of the virtual document.
+   */
+  readonly instanceId: number;
+
+  /**
+   * Test whether the document is disposed.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Signal emitted when the foreign document is closed
+   */
+  get foreignDocumentClosed(): ISignal<
+    VirtualDocument,
+    Document.IForeignContext
+  > {
+    return this._foreignDocumentClosed;
+  }
+
+  /**
+   * Signal emitted when the foreign document is opened
+   */
+  get foreignDocumentOpened(): ISignal<
+    VirtualDocument,
+    Document.IForeignContext
+  > {
+    return this._foreignDocumentOpened;
+  }
+
+  /**
+   * Signal emitted when the foreign document is changed
+   */
+  get changed(): ISignal<VirtualDocument, VirtualDocument> {
+    return this._changed;
+  }
+
+  /**
+   * Id of the virtual document.
+   */
+  get virtualId(): VirtualDocument.virtualId {
+    // for easier debugging, the language information is included in the ID:
+    return this.standalone
+      ? this.instanceId + '(' + this.language + ')'
+      : this.language;
+  }
+
+  /**
+   * Return the ancestry to this document.
+   */
+  get ancestry(): Array<VirtualDocument> {
+    if (!this.parent) {
+      return [this];
+    }
+    return this.parent.ancestry.concat([this]);
+  }
+
+  /**
+   * Return the id path to the virtual document.
+   */
+  get idPath(): VirtualDocument.idPath {
+    if (!this.parent) {
+      return this.virtualId;
+    }
+    return this.parent.idPath + '-' + this.virtualId;
+  }
+
+  /**
+   * Get the uri of the virtual document.
+   */
+  get uri(): VirtualDocument.uri {
+    const encodedPath = encodeURI(this.path);
+    if (!this.parent) {
+      return encodedPath;
+    }
+    return encodedPath + '.' + this.idPath + '.' + this.fileExtension;
+  }
+
+  /**
+   * Get the text value of the document
+   */
+  get value(): string {
+    let linesPadding = '\n'.repeat(this.blankLinesBetweenCells);
+    return this.lineBlocks.join(linesPadding);
+  }
+
+  /**
+   * Get the last line in the virtual document
+   */
+  get lastLine(): string {
+    const linesInLastBlock =
+      this.lineBlocks[this.lineBlocks.length - 1].split('\n');
+    return linesInLastBlock[linesInLastBlock.length - 1];
+  }
+
+  /**
+   * Get the root document of current virtual document.
+   */
+  get root(): VirtualDocument {
+    return this.parent ? this.parent.root : this;
+  }
+
+  /**
+   * Dispose the virtual document.
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+
+    this.parent = null;
+
+    this.closeAllForeignDocuments();
+
+    this.updateManager.dispose();
+    // clear all the maps
+
+    this.foreignDocuments.clear();
+    this.sourceLines.clear();
+    this.unusedStandaloneDocuments.clear();
+    this.virtualLines.clear();
+
+    // just to be sure - if anything is accessed after disposal (it should not) we
+    // will get altered by errors in the console AND this will limit memory leaks
+
+    this.documentInfo = null as any;
+    this.lineBlocks = null as any;
+
+    Signal.clearData(this);
+  }
+
+  /**
+   * Clear the virtual document and all related stuffs
+   */
+  clear(): void {
+    for (let document of this.foreignDocuments.values()) {
+      document.clear();
+    }
+
+    // TODO - deep clear (assure that there is no memory leak)
+    this.unusedStandaloneDocuments.clear();
+
+    this.virtualLines.clear();
+    this.sourceLines.clear();
+    this.lastVirtualLine = 0;
+    this.lastSourceLine = 0;
+    this.lineBlocks = [];
+  }
+
+  /**
+   * Get the virtual document from the cursor position of the source
+   * document
+   * @param position - position in source document
+   */
+  documentAtSourcePosition(position: ISourcePosition): VirtualDocument {
+    let sourceLine = this.sourceLines.get(position.line);
+
+    if (!sourceLine) {
+      return this;
+    }
+
+    let sourcePositionCe: CodeEditor.IPosition = {
+      line: sourceLine.editorLine,
+      column: position.ch
+    };
+
+    for (let [
+      range,
+      { virtualDocument: document }
+    ] of sourceLine.foreignDocumentsMap) {
+      if (isWithinRange(sourcePositionCe, range)) {
+        let sourcePositionCm = {
+          line: sourcePositionCe.line - range.start.line,
+          ch: sourcePositionCe.column - range.start.column
+        };
+
+        return document.documentAtSourcePosition(
+          sourcePositionCm as ISourcePosition
+        );
+      }
+    }
+
+    return this;
+  }
+
+  /**
+   * Detect if the input source position is belong to the current
+   * virtual document.
+   *
+   * @param sourcePosition - position in the source document
+   */
+  isWithinForeign(sourcePosition: ISourcePosition): boolean {
+    let sourceLine = this.sourceLines.get(sourcePosition.line)!;
+
+    let sourcePositionCe: CodeEditor.IPosition = {
+      line: sourceLine.editorLine,
+      column: sourcePosition.ch
+    };
+    for (let [range] of sourceLine.foreignDocumentsMap) {
+      if (isWithinRange(sourcePositionCe, range)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Compute the position in root document from the position of
+   * a child editor.
+   *
+   * @param editor - the active editor.
+   * @param position - position in the active editor.
+   */
+  transformFromEditorToRoot(
+    editor: Document.IEditor,
+    position: IEditorPosition
+  ): IRootPosition | null {
+    if (!this._editorToSourceLine.has(editor)) {
+      console.log('Editor not found in _editorToSourceLine map');
+      return null;
+    }
+    let shift = this._editorToSourceLine.get(editor)!;
+    return {
+      ...(position as IPosition),
+      line: position.line + shift
+    } as IRootPosition;
+  }
+
+  /**
+   * Compute the position in the virtual document from the position
+   * if the source document.
+   *
+   * @param sourcePosition - position in source document
+   */
+  virtualPositionAtDocument(sourcePosition: ISourcePosition): IVirtualPosition {
+    let sourceLine = this.sourceLines.get(sourcePosition.line);
+    if (sourceLine == null) {
+      throw new Error('Source line not mapped to virtual position');
+    }
+    let virtualLine = sourceLine.virtualLine;
+
+    // position inside the cell (block)
+    let sourcePositionCe: CodeEditor.IPosition = {
+      line: sourceLine.editorLine,
+      column: sourcePosition.ch
+    };
+
+    for (let [range, content] of sourceLine.foreignDocumentsMap) {
+      const { virtualLine, virtualDocument: document } = content;
+      if (isWithinRange(sourcePositionCe, range)) {
+        // position inside the foreign document block
+        let sourcePositionCm = {
+          line: sourcePositionCe.line - range.start.line,
+          ch: sourcePositionCe.column - range.start.column
+        };
+        if (document.isWithinForeign(sourcePositionCm as ISourcePosition)) {
+          return this.virtualPositionAtDocument(
+            sourcePositionCm as ISourcePosition
+          );
+        } else {
+          // where in this block in the entire foreign document?
+          sourcePositionCm.line += virtualLine;
+          return sourcePositionCm as IVirtualPosition;
+        }
+      }
+    }
+
+    return {
+      ch: sourcePosition.ch,
+      line: virtualLine
+    } as IVirtualPosition;
+  }
+
+  /**
+   * Append a code block to the end of the virtual document.
+   *
+   * @param  block - block to be appended
+   * @param  editorShift - position shift in source
+   * document
+   * @param  [virtualShift] - position shift in
+   * virtual document.
+   */
+  appendCodeBlock(
+    block: Document.ICodeBlockOptions,
+    editorShift: CodeEditor.IPosition = { line: 0, column: 0 },
+    virtualShift?: CodeEditor.IPosition
+  ): void {
+    let cellCode = block.value;
+    let ceEditor = block.ceEditor;
+
+    if (this.isDisposed) {
+      console.warn('Cannot append code block: document disposed');
+      return;
+    }
+    let sourceCellLines = cellCode.split('\n');
+    let { lines, foreignDocumentsMap } = this.prepareCodeBlock(
+      block,
+      editorShift
+    );
+
+    for (let i = 0; i < lines.length; i++) {
+      this.virtualLines.set(this.lastVirtualLine + i, {
+        skipInspect: [],
+        editor: ceEditor,
+        // TODO this is incorrect, wont work if something was extracted
+        sourceLine: this.lastSourceLine + i
+      });
+    }
+    for (let i = 0; i < sourceCellLines.length; i++) {
+      this.sourceLines.set(this.lastSourceLine + i, {
+        editorLine: i,
+        editorShift: {
+          line: editorShift.line - (virtualShift?.line || 0),
+          column: i === 0 ? editorShift.column - (virtualShift?.column || 0) : 0
+        },
+        // TODO: move those to a new abstraction layer (DocumentBlock class)
+        editor: ceEditor,
+        foreignDocumentsMap,
+        // TODO this is incorrect, wont work if something was extracted
+        virtualLine: this.lastVirtualLine + i
+      });
+    }
+
+    this.lastVirtualLine += lines.length;
+
+    // one empty line is necessary to separate code blocks, next 'n' lines are to silence linters;
+    // the final cell does not get the additional lines (thanks to the use of join, see below)
+
+    this.lineBlocks.push(lines.join('\n') + '\n');
+
+    // adding the virtual lines for the blank lines
+    for (let i = 0; i < this.blankLinesBetweenCells; i++) {
+      this.virtualLines.set(this.lastVirtualLine + i, {
+        skipInspect: [this.idPath],
+        editor: ceEditor,
+        sourceLine: null
+      });
+    }
+
+    this.lastVirtualLine += this.blankLinesBetweenCells;
+    this.lastSourceLine += sourceCellLines.length;
+  }
+
+  /**
+   * Extract a code block into list of string in supported language and
+   * a map of foreign document if any.
+   * @param  block - block to be appended
+   * @param  editorShift - position shift in source document
+   */
+  prepareCodeBlock(
+    block: Document.ICodeBlockOptions,
+    editorShift: CodeEditor.IPosition = { line: 0, column: 0 }
+  ): {
+    lines: string[];
+    foreignDocumentsMap: Map<CodeEditor.IRange, Document.IVirtualDocumentBlock>;
+  } {
+    let { cellCodeKept, foreignDocumentsMap } = this.extractForeignCode(
+      block,
+      editorShift
+    );
+    let lines = cellCodeKept.split('\n');
+    return { lines, foreignDocumentsMap };
+  }
+
+  /**
+   * Extract the foreign code from input block by using the registered
+   * extractors.
+   * @param  block - block to be appended
+   * @param  editorShift - position shift in source document
+   */
+  extractForeignCode(
+    block: Document.ICodeBlockOptions,
+    editorShift: CodeEditor.IPosition
+  ): {
+    cellCodeKept: string;
+    foreignDocumentsMap: Map<CodeEditor.IRange, Document.IVirtualDocumentBlock>;
+  } {
+    let foreignDocumentsMap = new Map<
+      CodeEditor.IRange,
+      Document.IVirtualDocumentBlock
+    >();
+
+    let cellCode = block.value;
+    const extractorsForAnyLang = this._foreignCodeExtractors.getExtractors(
+      block.type,
+      null
+    );
+    const extractorsForCurrentLang = this._foreignCodeExtractors.getExtractors(
+      block.type,
+      this.language
+    );
+
+    for (let extractor of [
+      ...extractorsForAnyLang,
+      ...extractorsForCurrentLang
+    ]) {
+      if (!extractor.hasForeignCode(cellCode, block.type)) {
+        continue;
+      }
+
+      let results = extractor.extractForeignCode(cellCode);
+
+      let keptCellCode = '';
+
+      for (let result of results) {
+        if (result.foreignCode !== null) {
+          // result.range should only be null if result.foregin_code is null
+          if (result.range === null) {
+            console.log(
+              'Failure in foreign code extraction: `range` is null but `foreign_code` is not!'
+            );
+            continue;
+          }
+          let foreignDocument = this.chooseForeignDocument(extractor);
+          foreignDocumentsMap.set(result.range, {
+            virtualLine: foreignDocument.lastVirtualLine,
+            virtualDocument: foreignDocument,
+            editor: block.ceEditor
+          });
+          let foreignShift = {
+            line: editorShift.line + result.range.start.line,
+            column: editorShift.column + result.range.start.column
+          };
+          foreignDocument.appendCodeBlock(
+            {
+              value: result.foreignCode,
+              ceEditor: block.ceEditor,
+              type: 'code'
+            },
+            foreignShift,
+            result.virtualShift!
+          );
+        }
+        if (result.hostCode != null) {
+          keptCellCode += result.hostCode;
+        }
+      }
+      // not breaking - many extractors are allowed to process the code, one after each other
+      // (think JS and CSS in HTML, or %R inside of %%timeit).
+
+      cellCode = keptCellCode;
+    }
+
+    return { cellCodeKept: cellCode, foreignDocumentsMap };
+  }
+
+  /**
+   * Close a foreign document and disconnect all associated signals
+   */
+  closeForeign(document: VirtualDocument): void {
+    this._foreignDocumentClosed.emit({
+      foreignDocument: document,
+      parentHost: this
+    });
+    // remove it from foreign documents list
+    this.foreignDocuments.delete(document.virtualId);
+    // and delete the documents within it
+    document.closeAllForeignDocuments();
+
+    document.foreignDocumentClosed.disconnect(this.forwardClosedSignal, this);
+    document.foreignDocumentOpened.disconnect(this.forwardOpenedSignal, this);
+    document.dispose();
+  }
+
+  /**
+   * Close all foreign documents.
+   */
+  closeAllForeignDocuments(): void {
+    for (let document of this.foreignDocuments.values()) {
+      this.closeForeign(document);
+    }
+  }
+
+  /**
+   * Close all expired documents.
+   */
+  closeExpiredDocuments(): void {
+    const usedDocuments = new Set<VirtualDocument>();
+    for (const line of this.sourceLines.values()) {
+      for (const block of line.foreignDocumentsMap.values()) {
+        usedDocuments.add(block.virtualDocument);
+      }
+    }
+
+    const documentIDs = new Map<VirtualDocument, string[]>();
+    for (const [id, document] of this.foreignDocuments.entries()) {
+      const ids = documentIDs.get(document);
+      if (typeof ids !== 'undefined') {
+        documentIDs.set(document, [...ids, id]);
+      }
+      documentIDs.set(document, [id]);
+    }
+    const allDocuments = new Set<VirtualDocument>(documentIDs.keys());
+    const unusedVirtualDocuments = new Set(
+      [...allDocuments].filter(x => !usedDocuments.has(x))
+    );
+
+    for (let document of unusedVirtualDocuments.values()) {
+      document.remainingLifetime -= 1;
+      if (document.remainingLifetime <= 0) {
+        document.dispose();
+        const ids = documentIDs.get(document)!;
+        for (const id of ids) {
+          this.foreignDocuments.delete(id);
+        }
+      }
+    }
+  }
+
+  /**
+   * Transform the position of the source to the editor
+   * position.
+   *
+   * @param  pos - position in the source document
+   * @return position in the editor.
+   */
+  transformSourceToEditor(pos: ISourcePosition): IEditorPosition {
+    let sourceLine = this.sourceLines.get(pos.line)!;
+    let editorLine = sourceLine.editorLine;
+    let editorShift = sourceLine.editorShift;
+    return {
+      // only shift column in the line beginning the virtual document (first list of the editor in cell magics, but might be any line of editor in line magics!)
+      ch: pos.ch + (editorLine === 0 ? editorShift.column : 0),
+      line: editorLine + editorShift.line
+      // TODO or:
+      //  line: pos.line + editor_shift.line - this.first_line_of_the_block(editor)
+    } as IEditorPosition;
+  }
+
+  /**
+   * Transform the position in the virtual document to the
+   * editor position.
+   * Can be null because some lines are added as padding/anchors
+   * to the virtual document and those do not exist in the source document
+   * and thus they are absent in the editor.
+   */
+  transformVirtualToEditor(
+    virtualPosition: IVirtualPosition
+  ): IEditorPosition | null {
+    let sourcePosition = this.transformVirtualToSource(virtualPosition);
+    if (sourcePosition == null) {
+      return null;
+    }
+    return this.transformSourceToEditor(sourcePosition);
+  }
+
+  /**
+   * Transform the position in the virtual document to the source.
+   * Can be null because some lines are added as padding/anchors
+   * to the virtual document and those do not exist in the source document.
+   */
+  transformVirtualToSource(position: IVirtualPosition): ISourcePosition | null {
+    const line = this.virtualLines.get(position.line)!.sourceLine;
+    if (line == null) {
+      return null;
+    }
+    return {
+      ch: position.ch,
+      line: line
+    } as ISourcePosition;
+  }
+
+  /**
+   * Get the corresponding editor of the virtual line.
+   */
+  getEditorAtVirtualLine(pos: IVirtualPosition): Document.IEditor {
+    let line = pos.line;
+    // tolerate overshot by one (the hanging blank line at the end)
+    if (!this.virtualLines.has(line)) {
+      line -= 1;
+    }
+    return this.virtualLines.get(line)!.editor;
+  }
+
+  /**
+   * Get the corresponding editor of the source line
+   */
+  getEditorAtSourceLine(pos: ISourcePosition): Document.IEditor {
+    return this.sourceLines.get(pos.line)!.editor;
+  }
+
+  /**
+   * Recursively emits changed signal from the document or any descendant foreign document.
+   */
+  maybeEmitChanged(): void {
+    if (this.value !== this.previousValue) {
+      this._changed.emit(this);
+    }
+    this.previousValue = this.value;
+    for (let document of this.foreignDocuments.values()) {
+      document.maybeEmitChanged();
+    }
+  }
+
+  /**
+   * When this counter goes down to 0, the document will be destroyed and the associated connection will be closed;
+   * This is meant to reduce the number of open connections when a foreign code snippet was removed from the document.
+   *
+   * Note: top level virtual documents are currently immortal (unless killed by other means); it might be worth
+   * implementing culling of unused documents, but if and only if JupyterLab will also implement culling of
+   * idle kernels - otherwise the user experience could be a bit inconsistent, and we would need to invent our own rules.
+   */
+  protected get remainingLifetime(): number {
+    if (!this.parent) {
+      return Infinity;
+    }
+    return this._remainingLifetime;
+  }
+
+  protected set remainingLifetime(value: number) {
+    if (this.parent) {
+      this._remainingLifetime = value;
+    }
+  }
+
+  /**
+   * Virtual lines keep all the lines present in the document AND extracted to the foreign document.
+   */
+  protected virtualLines: Map<number, IVirtualLine>;
+  protected sourceLines: Map<number, ISourceLine>;
+  protected lineBlocks: Array<string>;
+
+  protected unusedStandaloneDocuments: DefaultMap<
+    language,
+    Array<VirtualDocument>
+  >;
+
+  private _isDisposed = false;
+  private _remainingLifetime: number;
+  private _editorToSourceLine: Map<Document.IEditor, number>;
+  private _editorToSourceLineNew: Map<Document.IEditor, number>;
+  private _foreignCodeExtractors: ILSPCodeExtractorsManager;
+  private previousValue: string;
+  private static instancesCount = 0;
+  private readonly options: VirtualDocument.IOptions;
+
+  /**
+   * Get the foreign document that can be opened with the input extractor.
+   */
+  private chooseForeignDocument(
+    extractor: IForeignCodeExtractor
+  ): VirtualDocument {
+    let foreignDocument: VirtualDocument;
+    // if not standalone, try to append to existing document
+    let foreignExists = this.foreignDocuments.has(extractor.language);
+    if (!extractor.standalone && foreignExists) {
+      foreignDocument = this.foreignDocuments.get(extractor.language)!;
+    } else {
+      // if (previous document does not exists) or (extractor produces standalone documents
+      // and no old standalone document could be reused): create a new document
+      foreignDocument = this.openForeign(
+        extractor.language,
+        extractor.standalone,
+        extractor.fileExtension
+      );
+    }
+    return foreignDocument;
+  }
+
+  /**
+   * Create a foreign document from input language and file extension.
+   *
+   * @param  language - the required language
+   * @param  standalone - the document type is supported natively by LSP?
+   * @param  fileExtension - File extension.
+   */
+  private openForeign(
+    language: language,
+    standalone: boolean,
+    fileExtension: string
+  ): VirtualDocument {
+    let document = new VirtualDocument({
+      ...this.options,
+      parent: this,
+      standalone: standalone,
+      fileExtension: fileExtension,
+      language: language
+    });
+    const context: Document.IForeignContext = {
+      foreignDocument: document,
+      parentHost: this
+    };
+    this._foreignDocumentOpened.emit(context);
+    // pass through any future signals
+    document.foreignDocumentClosed.connect(this.forwardClosedSignal, this);
+    document.foreignDocumentOpened.connect(this.forwardOpenedSignal, this);
+
+    this.foreignDocuments.set(document.virtualId, document);
+
+    return document;
+  }
+
+  /**
+   * Forward the closed signal from the foreign document to the host document's
+   * signal
+   */
+  private forwardClosedSignal(
+    host: VirtualDocument,
+    context: Document.IForeignContext
+  ) {
+    this._foreignDocumentClosed.emit(context);
+  }
+
+  /**
+   * Forward the opened signal from the foreign document to the host document's
+   * signal
+   */
+  private forwardOpenedSignal(
+    host: VirtualDocument,
+    context: Document.IForeignContext
+  ) {
+    this._foreignDocumentOpened.emit(context);
+  }
+
+  /**
+   * Slot of the `updateBegan` signal.
+   */
+  private _updateBeganSlot(): void {
+    this._editorToSourceLineNew = new Map();
+  }
+
+  /**
+   * Slot of the `blockAdded` signal.
+   */
+  private _blockAddedSlot(
+    updateManager: UpdateManager,
+    blockData: IBlockAddedInfo
+  ): void {
+    this._editorToSourceLineNew.set(
+      blockData.block.ceEditor,
+      blockData.virtualDocument.lastSourceLine
+    );
+  }
+
+  /**
+   * Slot of the `updateFinished` signal.
+   */
+  private _updateFinishedSlot(): void {
+    this._editorToSourceLine = this._editorToSourceLineNew;
+  }
+
+  private _foreignDocumentClosed = new Signal<
+    VirtualDocument,
+    Document.IForeignContext
+  >(this);
+  private _foreignDocumentOpened = new Signal<
+    VirtualDocument,
+    Document.IForeignContext
+  >(this);
+  private _changed = new Signal<VirtualDocument, VirtualDocument>(this);
+}
+
+export namespace VirtualDocument {
+  /**
+   * Identifier composed of `virtual_id`s of a nested structure of documents,
+   * used to aide assignment of the connection to the virtual document
+   * handling specific, nested language usage; it will be appended to the file name
+   * when creating a connection.
+   */
+  export type idPath = string;
+  /**
+   * Instance identifier for standalone documents (snippets), or language identifier
+   * for documents which should be interpreted as one when stretched across cells.
+   */
+  export type virtualId = string;
+  /**
+   * Identifier composed of the file path and id_path.
+   */
+  export type uri = string;
+}
+
+/**
+ * Create foreign documents if available from input virtual documents.
+ * @param virtualDocument - the virtual document to be collected
+ * @return - Set of generated foreign documents
+ */
+export function collectDocuments(
+  virtualDocument: VirtualDocument
+): Set<VirtualDocument> {
+  let collected = new Set<VirtualDocument>();
+  collected.add(virtualDocument);
+  for (let foreign of virtualDocument.foreignDocuments.values()) {
+    let foreignLanguages = collectDocuments(foreign);
+    foreignLanguages.forEach(collected.add, collected);
+  }
+  return collected;
+}
+
+export interface IBlockAddedInfo {
+  /**
+   * The virtual document.
+   */
+  virtualDocument: VirtualDocument;
+
+  /**
+   * Option of the code block.
+   */
+  block: Document.ICodeBlockOptions;
+}
+
+export class UpdateManager implements IDisposable {
+  constructor(private virtualDocument: VirtualDocument) {
+    this._blockAdded = new Signal<UpdateManager, IBlockAddedInfo>(this);
+    this._documentUpdated = new Signal<UpdateManager, VirtualDocument>(this);
+    this._updateBegan = new Signal<UpdateManager, Document.ICodeBlockOptions[]>(
+      this
+    );
+    this._updateFinished = new Signal<
+      UpdateManager,
+      Document.ICodeBlockOptions[]
+    >(this);
+    this.documentUpdated.connect(this._onUpdated, this);
+  }
+
+  /**
+   * Promise resolved when the updating process finishes.
+   */
+  get updateDone(): Promise<void> {
+    return this._updateDone;
+  }
+  /**
+   * Test whether the document is disposed.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Signal emitted when a code block is added to the document.
+   */
+  get blockAdded(): ISignal<UpdateManager, IBlockAddedInfo> {
+    return this._blockAdded;
+  }
+
+  /**
+   * Signal emitted by the editor that triggered the update,
+   * providing the root document of the updated documents.
+   */
+  get documentUpdated(): ISignal<UpdateManager, VirtualDocument> {
+    return this._documentUpdated;
+  }
+
+  /**
+   * Signal emitted when the update is started
+   */
+  get updateBegan(): ISignal<UpdateManager, Document.ICodeBlockOptions[]> {
+    return this._updateBegan;
+  }
+
+  /**
+   * Signal emitted when the update is finished
+   */
+  get updateFinished(): ISignal<UpdateManager, Document.ICodeBlockOptions[]> {
+    return this._updateFinished;
+  }
+
+  /**
+   * Dispose the class
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    this.documentUpdated.disconnect(this._onUpdated);
+    Signal.clearData(this);
+  }
+
+  /**
+   * Execute provided callback within an update-locked context, which guarantees that:
+   *  - the previous updates must have finished before the callback call, and
+   *  - no update will happen when executing the callback
+   * @param fn - the callback to execute in update lock
+   */
+  async withUpdateLock(fn: () => void): Promise<void> {
+    await untilReady(() => this._canUpdate(), 12, 10).then(() => {
+      try {
+        this._updateLock = true;
+        fn();
+      } finally {
+        this._updateLock = false;
+      }
+    });
+  }
+
+  /**
+   * Update all the virtual documents, emit documents updated with root document if succeeded,
+   * and resolve a void promise. The promise does not contain the text value of the root document,
+   * as to avoid an easy trap of ignoring the changes in the virtual documents.
+   */
+  async updateDocuments(blocks: Document.ICodeBlockOptions[]): Promise<void> {
+    let update = new Promise<void>((resolve, reject) => {
+      // defer the update by up to 50 ms (10 retrials * 5 ms break),
+      // awaiting for the previous update to complete.
+      untilReady(() => this._canUpdate(), 10, 5)
+        .then(() => {
+          if (this.isDisposed || !this.virtualDocument) {
+            resolve();
+          }
+          try {
+            this._isUpdateInProgress = true;
+            this._updateBegan.emit(blocks);
+
+            this.virtualDocument.clear();
+
+            for (let codeBlock of blocks) {
+              this._blockAdded.emit({
+                block: codeBlock,
+                virtualDocument: this.virtualDocument
+              });
+              this.virtualDocument.appendCodeBlock(codeBlock);
+            }
+
+            this._updateFinished.emit(blocks);
+
+            if (this.virtualDocument) {
+              this._documentUpdated.emit(this.virtualDocument);
+              this.virtualDocument.maybeEmitChanged();
+            }
+
+            resolve();
+          } catch (e) {
+            console.warn('Documents update failed:', e);
+            reject(e);
+          } finally {
+            this._isUpdateInProgress = false;
+          }
+        })
+        .catch(console.error);
+    });
+    this._updateDone = update;
+    return update;
+  }
+
+  private _isDisposed = false;
+
+  /**
+   * Promise resolved when the updating process finishes.
+   */
+  private _updateDone: Promise<void> = new Promise<void>(resolve => {
+    resolve();
+  });
+
+  /**
+   * Virtual documents update guard.
+   */
+  private _isUpdateInProgress: boolean = false;
+
+  /**
+   * Update lock to prevent multiple updates are applied at the same time.
+   */
+  private _updateLock: boolean = false;
+
+  private _blockAdded: Signal<UpdateManager, IBlockAddedInfo>;
+  private _documentUpdated: Signal<UpdateManager, VirtualDocument>;
+  private _updateBegan: Signal<UpdateManager, Document.ICodeBlockOptions[]>;
+  private _updateFinished: Signal<UpdateManager, Document.ICodeBlockOptions[]>;
+
+  /**
+   * Once all the foreign documents were refreshed, the unused documents (and their connections)
+   * should be terminated if their lifetime has expired.
+   */
+  private _onUpdated(manager: UpdateManager, rootDocument: VirtualDocument) {
+    try {
+      rootDocument.closeExpiredDocuments();
+    } catch (e) {
+      console.warn('Failed to close expired documents');
+    }
+  }
+
+  /**
+   * Check if the document can be updated.
+   */
+  private _canUpdate() {
+    return !this.isDisposed && !this._isUpdateInProgress && !this._updateLock;
+  }
+}
diff --git a/packages/lsp/src/ws-connection/server-capability-registration.ts b/packages/lsp/src/ws-connection/server-capability-registration.ts
new file mode 100644
index 000000000000..099a5dea3db0
--- /dev/null
+++ b/packages/lsp/src/ws-connection/server-capability-registration.ts
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// Disclaimer/acknowledgement: Fragments are based on https://github.com/wylieconlon/lsp-editor-adapter,
+// which is copyright of wylieconlon and contributors and ISC licenced.
+// ISC licence is, quote, "functionally equivalent to the simplified BSD and MIT licenses,
+// but without language deemed unnecessary following the Berne Convention." (Wikipedia).
+// Introduced modifications are BSD licenced, copyright JupyterLab development team.
+
+import {
+  Registration,
+  ServerCapabilities,
+  Unregistration
+} from 'vscode-languageserver-protocol';
+
+interface IFlexibleServerCapabilities extends ServerCapabilities {
+  [key: string]: any;
+}
+
+/**
+ * Register the capabilities with the server capabilities provider
+ *
+ * @param serverCapabilities - server capabilities provider.
+ * @param registration -  capabilities to be registered.
+ * @return - the new server capabilities provider
+ */
+function registerServerCapability(
+  serverCapabilities: ServerCapabilities,
+  registration: Registration
+): ServerCapabilities | null {
+  const serverCapabilitiesCopy = JSON.parse(
+    JSON.stringify(serverCapabilities)
+  ) as IFlexibleServerCapabilities;
+  const { method, registerOptions } = registration;
+  const providerName = method.substring(13) + 'Provider';
+
+  if (providerName) {
+    if (!registerOptions) {
+      serverCapabilitiesCopy[providerName] = true;
+    } else {
+      serverCapabilitiesCopy[providerName] = JSON.parse(
+        JSON.stringify(registerOptions)
+      );
+    }
+  } else {
+    console.warn('Could not register server capability.', registration);
+    return null;
+  }
+
+  return serverCapabilitiesCopy;
+}
+
+/**
+ * Unregister the capabilities with the server capabilities provider
+ *
+ * @param serverCapabilities - server capabilities provider.
+ * @param registration -  capabilities to be unregistered.
+ * @return - the new server capabilities provider
+ */
+function unregisterServerCapability(
+  serverCapabilities: ServerCapabilities,
+  unregistration: Unregistration
+): ServerCapabilities {
+  const serverCapabilitiesCopy = JSON.parse(
+    JSON.stringify(serverCapabilities)
+  ) as IFlexibleServerCapabilities;
+  const { method } = unregistration;
+  const providerName = method.substring(13) + 'Provider';
+
+  delete serverCapabilitiesCopy[providerName];
+
+  return serverCapabilitiesCopy;
+}
+
+export { registerServerCapability, unregisterServerCapability };
diff --git a/packages/lsp/src/ws-connection/types.ts b/packages/lsp/src/ws-connection/types.ts
new file mode 100644
index 000000000000..36ccb2d19a21
--- /dev/null
+++ b/packages/lsp/src/ws-connection/types.ts
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// Disclaimer/acknowledgement: Fragments are based on https://github.com/wylieconlon/lsp-editor-adapter,
+// which is copyright of wylieconlon and contributors and ISC licenced.
+// ISC licence is, quote, "functionally equivalent to the simplified BSD and MIT licenses,
+// but without language deemed unnecessary following the Berne Convention." (Wikipedia).
+// Introduced modifications are BSD licenced, copyright JupyterLab development team.
+
+import type * as lsp from 'vscode-languageserver-protocol';
+
+export interface IDocumentInfo {
+  /**
+   * URI of the virtual document.
+   */
+  uri: string;
+
+  /**
+   * Version of the virtual document.
+   */
+  version: number;
+
+  /**
+   * Text content of the document.
+   */
+  text: string;
+
+  /**
+   * Language id of the document.
+   */
+  languageId: string;
+}
+
+export interface ILspConnection {
+  /**
+   * Is the language server is connected?
+   */
+  isConnected: boolean;
+  /**
+   * Is the language server is initialized?
+   */
+  isInitialized: boolean;
+
+  /**
+   * Is the language server is connected and initialized?
+   */
+  isReady: boolean;
+
+  /**
+   * Initialize a connection over a web socket that speaks the LSP protocol
+   */
+  connect(socket: WebSocket): void;
+
+  /**
+   * Close the connection
+   */
+  close(): void;
+
+  // This should support every method from https://microsoft.github.io/language-server-protocol/specification
+  /**
+   * The initialize request tells the server which options the client supports
+   */
+  sendInitialize(): void;
+  /**
+   * Inform the server that the document was opened
+   */
+  sendOpen(documentInfo: IDocumentInfo): void;
+
+  /**
+   * Sends the full text of the document to the server
+   */
+  sendChange(documentInfo: IDocumentInfo): void;
+
+  /**
+   * Send save notification to the server.
+   */
+  sendSaved(documentInfo: IDocumentInfo): void;
+
+  /**
+   * Send configuration change to the server.
+   */
+  sendConfigurationChange(settings: lsp.DidChangeConfigurationParams): void;
+}
+
+export interface ILspOptions {
+  /**
+   * LSP handler endpoint.
+   */
+  serverUri: string;
+
+  /**
+   * Language Id.
+   */
+  languageId: string;
+
+  /**
+   * The root URI set by server.
+   */
+  rootUri: string;
+}
diff --git a/packages/lsp/src/ws-connection/ws-connection.ts b/packages/lsp/src/ws-connection/ws-connection.ts
new file mode 100644
index 000000000000..c614b13680b1
--- /dev/null
+++ b/packages/lsp/src/ws-connection/ws-connection.ts
@@ -0,0 +1,319 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// Disclaimer/acknowledgement: Fragments are based on https://github.com/wylieconlon/lsp-editor-adapter,
+// which is copyright of wylieconlon and contributors and ISC licenced.
+// ISC licence is, quote, "functionally equivalent to the simplified BSD and MIT licenses,
+// but without language deemed unnecessary following the Berne Convention." (Wikipedia).
+// Introduced modifications are BSD licenced, copyright JupyterLab development team.
+
+import { ConsoleLogger, listen, MessageConnection } from 'vscode-ws-jsonrpc';
+
+import { ISignal, Signal } from '@lumino/signaling';
+
+import {
+  registerServerCapability,
+  unregisterServerCapability
+} from './server-capability-registration';
+import { IDocumentInfo, ILspConnection, ILspOptions } from './types';
+
+import type * as protocol from 'vscode-languageserver-protocol';
+
+export class LspWsConnection implements ILspConnection {
+  constructor(options: ILspOptions) {
+    this._rootUri = options.rootUri;
+  }
+
+  /**
+   * Is the language server is connected?
+   */
+  get isConnected(): boolean {
+    return this._isConnected;
+  }
+
+  /**
+   * Is the language server is initialized?
+   */
+  get isInitialized(): boolean {
+    return this._isInitialized;
+  }
+
+  /**
+   * Is the language server is connected and initialized?
+   */
+  get isReady() {
+    return this._isConnected && this._isInitialized;
+  }
+
+  /**
+   * A signal emitted when the connection is disposed.
+   */
+  get disposed(): ISignal<this, void> {
+    return this._disposed;
+  }
+
+  /**
+   * Check if the connection is disposed
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Initialize a connection over a web socket that speaks the LSP protocol
+   */
+  connect(socket: WebSocket): void {
+    this.socket = socket;
+
+    listen({
+      webSocket: this.socket,
+      logger: new ConsoleLogger(),
+      onConnection: (connection: MessageConnection) => {
+        connection.listen();
+        this._isConnected = true;
+
+        this.connection = connection;
+        this.sendInitialize();
+
+        const registerCapabilityDisposable = this.connection.onRequest(
+          'client/registerCapability',
+          (params: protocol.RegistrationParams) => {
+            params.registrations.forEach(
+              (capabilityRegistration: protocol.Registration) => {
+                try {
+                  this.serverCapabilities = registerServerCapability(
+                    this.serverCapabilities,
+                    capabilityRegistration
+                  )!;
+                } catch (err) {
+                  console.error(err);
+                }
+              }
+            );
+          }
+        );
+        this._disposables.push(registerCapabilityDisposable);
+
+        const unregisterCapabilityDisposable = this.connection.onRequest(
+          'client/unregisterCapability',
+          (params: protocol.UnregistrationParams) => {
+            params.unregisterations.forEach(
+              (capabilityUnregistration: protocol.Unregistration) => {
+                this.serverCapabilities = unregisterServerCapability(
+                  this.serverCapabilities,
+                  capabilityUnregistration
+                );
+              }
+            );
+          }
+        );
+        this._disposables.push(unregisterCapabilityDisposable);
+
+        const disposable = this.connection.onClose(() => {
+          this._isConnected = false;
+        });
+        this._disposables.push(disposable);
+      }
+    });
+  }
+
+  /**
+   * Close the connection
+   */
+  close() {
+    if (this.connection) {
+      this.connection.dispose();
+    }
+    this.openedUris.clear();
+    this.socket.close();
+  }
+
+  /**
+   * The initialize request telling the server which options the client supports
+   */
+  sendInitialize() {
+    if (!this._isConnected) {
+      return;
+    }
+
+    this.openedUris.clear();
+
+    const message: protocol.InitializeParams = this.initializeParams();
+
+    this.connection
+      .sendRequest<protocol.InitializeResult>('initialize', message)
+      .then(
+        params => {
+          this.onServerInitialized(params);
+        },
+        e => {
+          console.warn('LSP websocket connection initialization failure', e);
+        }
+      );
+  }
+
+  /**
+   * Inform the server that the document was opened
+   */
+  sendOpen(documentInfo: IDocumentInfo) {
+    const textDocumentMessage: protocol.DidOpenTextDocumentParams = {
+      textDocument: {
+        uri: documentInfo.uri,
+        languageId: documentInfo.languageId,
+        text: documentInfo.text,
+        version: documentInfo.version
+      } as protocol.TextDocumentItem
+    };
+    this.connection
+      .sendNotification('textDocument/didOpen', textDocumentMessage)
+      .catch(console.error);
+    this.openedUris.set(documentInfo.uri, true);
+    this.sendChange(documentInfo);
+  }
+
+  /**
+   * Sends the full text of the document to the server
+   */
+  sendChange(documentInfo: IDocumentInfo) {
+    if (!this.isReady) {
+      return;
+    }
+    if (!this.openedUris.get(documentInfo.uri)) {
+      this.sendOpen(documentInfo);
+      return;
+    }
+    const textDocumentChange: protocol.DidChangeTextDocumentParams = {
+      textDocument: {
+        uri: documentInfo.uri,
+        version: documentInfo.version
+      } as protocol.VersionedTextDocumentIdentifier,
+      contentChanges: [{ text: documentInfo.text }]
+    };
+    this.connection
+      .sendNotification('textDocument/didChange', textDocumentChange)
+      .catch(console.error);
+    documentInfo.version++;
+  }
+
+  /**
+   * Send save notification to the server.
+   */
+  sendSaved(documentInfo: IDocumentInfo) {
+    if (!this.isReady) {
+      return;
+    }
+
+    const textDocumentChange: protocol.DidSaveTextDocumentParams = {
+      textDocument: {
+        uri: documentInfo.uri,
+        version: documentInfo.version
+      } as protocol.VersionedTextDocumentIdentifier,
+      text: documentInfo.text
+    };
+    this.connection
+      .sendNotification('textDocument/didSave', textDocumentChange)
+      .catch(console.error);
+  }
+
+  /**
+   * Send configuration change to the server.
+   */
+  sendConfigurationChange(settings: protocol.DidChangeConfigurationParams) {
+    if (!this.isReady) {
+      return;
+    }
+
+    this.connection
+      .sendNotification('workspace/didChangeConfiguration', settings)
+      .catch(console.error);
+  }
+
+  /**
+   * Dispose the connection.
+   */
+  dispose(): void {
+    if (this._isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    this._disposables.forEach(disposable => {
+      disposable.dispose();
+    });
+    this._disposed.emit();
+    Signal.clearData(this);
+  }
+
+  /**
+   * The internal websocket connection to the LSP handler
+   */
+  protected socket: WebSocket;
+
+  /**
+   * The json-rpc wrapper over the internal websocket connection.
+   */
+  protected connection: MessageConnection;
+
+  /**
+   * Map to track opened virtual documents..
+   */
+  protected openedUris = new Map<string, boolean>();
+
+  /**
+   * Lists server capabilities.
+   */
+  serverCapabilities: protocol.ServerCapabilities;
+
+  /**
+   * The connection is connected?
+   */
+  protected _isConnected = false;
+
+  /**
+   * The connection is initialized?
+   */
+  protected _isInitialized = false;
+
+  /**
+   * Array of LSP callback disposables, it is used to
+   * clear the callbacks when the connection is disposed.
+   */
+  protected _disposables: Array<protocol.Disposable> = [];
+
+  /**
+   * Callback called when the server is initialized.
+   */
+  protected onServerInitialized(params: protocol.InitializeResult): void {
+    this._isInitialized = true;
+    this.serverCapabilities = params.capabilities;
+    this.connection.sendNotification('initialized', {}).catch(console.error);
+    this.connection
+      .sendNotification('workspace/didChangeConfiguration', {
+        settings: {}
+      })
+      .catch(console.error);
+  }
+
+  /**
+   * Initialization parameters to be sent to the language server.
+   * Subclasses should override this when adding more features.
+   */
+  protected initializeParams(): protocol.InitializeParams {
+    return {
+      capabilities: {} as protocol.ClientCapabilities,
+      processId: null,
+      rootUri: this._rootUri,
+      workspaceFolders: null
+    };
+  }
+
+  /**
+   * URI of the LSP handler enpoint.
+   */
+  private _rootUri: string;
+
+  private _disposed = new Signal<this, void>(this);
+
+  private _isDisposed = false;
+}
diff --git a/packages/vdom/style/index.css b/packages/lsp/style/index.css
similarity index 85%
rename from packages/vdom/style/index.css
rename to packages/lsp/style/index.css
index a634b5e5550b..9068f49c158d 100644
--- a/packages/vdom/style/index.css
+++ b/packages/lsp/style/index.css
@@ -4,8 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/codeeditor/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
-@import url('./base.css');
diff --git a/packages/vdom/style/index.js b/packages/lsp/style/index.js
similarity index 87%
rename from packages/vdom/style/index.js
rename to packages/lsp/style/index.js
index 0cb415bdc2fc..6c97085a596a 100644
--- a/packages/vdom/style/index.js
+++ b/packages/lsp/style/index.js
@@ -4,8 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@lumino/widgets/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/codeeditor/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
-
-import './base.css';
diff --git a/packages/lsp/test/connection_manager.spec.ts b/packages/lsp/test/connection_manager.spec.ts
new file mode 100644
index 000000000000..f08448109c79
--- /dev/null
+++ b/packages/lsp/test/connection_manager.spec.ts
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  DocumentConnectionManager,
+  LanguageServerManager,
+  VirtualDocument
+} from '@jupyterlab/lsp';
+import { ServerConnection } from '@jupyterlab/services';
+
+jest.mock('@jupyterlab/notebook');
+
+const spy = jest.spyOn(ServerConnection, 'makeRequest');
+const specs = {
+  /* eslint-disable */
+  pyls: {
+    argv: [''],
+    display_name: 'pyls',
+    env: {},
+    languages: ['python'],
+    mime_types: ['text/python', 'text/x-ipython'],
+    version: 2
+  }
+  /* eslint-enable  */
+};
+const sessions = {
+  /* eslint-disable */
+  pyls: {
+    handler_count: 0,
+    last_handler_message_at: null,
+    last_server_message_at: null,
+    spec: specs.pyls,
+    status: 'not_started'
+  }
+  /* eslint-enable  */
+};
+spy.mockImplementation((status, method, setting) => {
+  return Promise.resolve({
+    ok: true,
+    status: 200,
+    json: () => ({
+      sessions,
+      specs,
+      version: 2
+    })
+  }) as any;
+});
+
+describe('@jupyterlab/lsp', () => {
+  describe('LSPConnection', () => {
+    let manager: DocumentConnectionManager;
+    let document: VirtualDocument;
+    beforeEach(() => {
+      manager = new DocumentConnectionManager({
+        languageServerManager: new LanguageServerManager({})
+      });
+      document = new VirtualDocument({
+        language: 'python',
+        path: 'test.ipynb',
+        foreignCodeExtractors: null as any,
+        standalone: false,
+        fileExtension: 'py',
+        hasLspSupportedFile: false
+      });
+    });
+    describe('#connectDocumentSignals', () => {
+      it('should connect virtual document signals', () => {
+        const cb = jest.fn();
+        manager.documentsChanged.connect(cb);
+        manager.connectDocumentSignals(document);
+        expect(manager.documents.has(document.uri)).toEqual(true);
+        expect(cb).toHaveBeenCalled();
+      });
+    });
+    describe('#disconnectDocumentSignals', () => {
+      it('should disconnect virtual document signals', () => {
+        manager.connectDocumentSignals(document);
+        expect(manager.documents.has(document.uri)).toEqual(true);
+        manager.disconnectDocumentSignals(document);
+        expect(manager.documents.has(document.uri)).toEqual(false);
+      });
+    });
+    describe('#onForeignDocumentClosed', () => {
+      it('should unregister and disconnect document', () => {
+        manager.unregisterDocument = jest.fn();
+        manager.disconnectDocumentSignals = jest.fn();
+        manager.onForeignDocumentClosed(null as any, {
+          foreignDocument: document,
+          parentHost: document
+        });
+        expect(manager.unregisterDocument).toHaveBeenCalled();
+        expect(manager.disconnectDocumentSignals).toHaveBeenCalled();
+      });
+    });
+  });
+});
diff --git a/packages/lsp/test/document.spec.ts b/packages/lsp/test/document.spec.ts
new file mode 100644
index 000000000000..a7d4ab7b25a2
--- /dev/null
+++ b/packages/lsp/test/document.spec.ts
@@ -0,0 +1,343 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import {
+  CodeExtractorsManager,
+  Document,
+  ILSPCodeExtractorsManager,
+  isWithinRange,
+  TextForeignCodeExtractor,
+  VirtualDocument
+} from '@jupyterlab/lsp';
+
+describe('@jupyterlab/lsp', () => {
+  describe('isWithinRange', () => {
+    let lineRange: CodeEditor.IRange = {
+      start: { line: 1, column: 0 },
+      end: { line: 1, column: 10 }
+    };
+    let longRange: CodeEditor.IRange = {
+      start: { line: 0, column: 3 },
+      end: { line: 1, column: 0 }
+    };
+    it('recognizes positions within range in a single-line case', () => {
+      expect(isWithinRange({ line: 1, column: 0 }, lineRange)).toEqual(true);
+      expect(isWithinRange({ line: 1, column: 5 }, lineRange)).toEqual(true);
+      expect(isWithinRange({ line: 1, column: 10 }, lineRange)).toEqual(true);
+    });
+
+    it('recognizes positions outside of range in a single-line case', () => {
+      expect(isWithinRange({ line: 0, column: 0 }, lineRange)).toEqual(false);
+      expect(isWithinRange({ line: 2, column: 0 }, lineRange)).toEqual(false);
+    });
+
+    it('recognizes positions within range in multi-line case', () => {
+      expect(isWithinRange({ line: 0, column: 3 }, longRange)).toEqual(true);
+      expect(isWithinRange({ line: 0, column: 5 }, longRange)).toEqual(true);
+      expect(isWithinRange({ line: 1, column: 0 }, longRange)).toEqual(true);
+    });
+
+    it('recognizes positions outside of range in multi-line case', () => {
+      expect(isWithinRange({ line: 0, column: 0 }, longRange)).toEqual(false);
+      expect(isWithinRange({ line: 0, column: 1 }, longRange)).toEqual(false);
+      expect(isWithinRange({ line: 0, column: 2 }, longRange)).toEqual(false);
+      expect(isWithinRange({ line: 1, column: 1 }, longRange)).toEqual(false);
+    });
+  });
+
+  describe('VirtualDocument', () => {
+    let document: VirtualDocument;
+    let extractorManager: ILSPCodeExtractorsManager;
+    let markdownCellExtractor: TextForeignCodeExtractor;
+    let rawCellExtractor: TextForeignCodeExtractor;
+    beforeAll(() => {
+      extractorManager = new CodeExtractorsManager();
+
+      markdownCellExtractor = new TextForeignCodeExtractor({
+        language: 'markdown',
+        isStandalone: false,
+        file_extension: 'md',
+        cellType: ['markdown']
+      });
+      extractorManager.register(markdownCellExtractor, null);
+      rawCellExtractor = new TextForeignCodeExtractor({
+        language: 'text',
+        isStandalone: false,
+        file_extension: 'txt',
+        cellType: ['raw']
+      });
+      extractorManager.register(rawCellExtractor, null);
+    });
+    beforeEach(() => {
+      document = new VirtualDocument({
+        language: 'python',
+        path: 'test.ipynb',
+        foreignCodeExtractors: extractorManager,
+        standalone: false,
+        fileExtension: 'py',
+        hasLspSupportedFile: false
+      });
+      let editorCode = {} as Document.IEditor;
+      let editorMarkdown = {} as Document.IEditor;
+      let editorRaw = {} as Document.IEditor;
+
+      document.appendCodeBlock({
+        value: 'test line in Python 1\ntest line in Python 2',
+        ceEditor: editorCode,
+        type: 'code'
+      });
+      document.appendCodeBlock({
+        value: 'test line in markdown 1\ntest line in markdown 2',
+        ceEditor: editorMarkdown,
+        type: 'markdown'
+      });
+      document.appendCodeBlock({
+        value: 'test line in raw 1\ntest line in raw 2',
+        ceEditor: editorRaw,
+        type: 'raw'
+      });
+    });
+
+    afterEach(() => {
+      document.clear();
+    });
+
+    describe('#dispose', () => {
+      it('should dispose, but does not break methods which can be called from async callbacks', () => {
+        expect(document.isDisposed).toEqual(false);
+        // appending code block here should work fine
+        document.appendCodeBlock({
+          value: 'code',
+          ceEditor: {} as Document.IEditor,
+          type: 'code'
+        });
+        document.dispose();
+        expect(document.isDisposed).toEqual(true);
+        // mock console.warn
+        console.warn = jest.fn();
+        // this one should not raise, but just warn
+        document.appendCodeBlock({
+          value: 'code',
+          ceEditor: {} as Document.IEditor,
+          type: 'code'
+        });
+        expect((console.warn as jest.Mock).mock.calls[0][0]).toEqual(
+          'Cannot append code block: document disposed'
+        );
+      });
+      it('should close all foreign documents', () => {
+        document.closeAllForeignDocuments = jest.fn();
+        document.dispose();
+        expect(document.closeAllForeignDocuments).toHaveBeenCalled();
+      });
+      it('should clear all the maps', () => {
+        document.dispose();
+        expect(document.foreignDocuments.size).toEqual(0);
+        expect(document['sourceLines'].size).toEqual(0);
+        expect(document['unusedStandaloneDocuments'].size).toEqual(0);
+        expect(document['virtualLines'].size).toEqual(0);
+      });
+    });
+
+    describe('#appendCodeBlock', () => {
+      it('should set the `virtualLines` map', () => {
+        expect(document['virtualLines'].size).toEqual(10);
+        document.appendCodeBlock({
+          value: 'new line',
+          ceEditor: {} as Document.IEditor,
+          type: 'code'
+        });
+        expect(document['virtualLines'].size).toEqual(13);
+        expect(document.lastSourceLine).toEqual(7);
+        expect(document.lastVirtualLine).toEqual(13);
+      });
+    });
+    describe('#prepareCodeBlock', () => {
+      it('should prepare a code block', () => {
+        const { lines, foreignDocumentsMap } = document.prepareCodeBlock({
+          value: 'new line',
+          ceEditor: {} as Document.IEditor,
+          type: 'code'
+        });
+        expect(lines).toEqual(['new line']);
+        expect(foreignDocumentsMap.size).toEqual(0);
+      });
+      it('should prepare a markdown block', () => {
+        const { lines, foreignDocumentsMap } = document.prepareCodeBlock({
+          value: 'new line',
+          ceEditor: {} as Document.IEditor,
+          type: 'markdown'
+        });
+        expect(lines).toEqual(['']);
+        expect(foreignDocumentsMap.size).toEqual(1);
+      });
+      it('should prepare a raw text block', () => {
+        const { lines, foreignDocumentsMap } = document.prepareCodeBlock({
+          value: 'new line',
+          ceEditor: {} as Document.IEditor,
+          type: 'raw'
+        });
+        expect(lines).toEqual(['']);
+        expect(foreignDocumentsMap.size).toEqual(1);
+      });
+    });
+    describe('#extractForeignCode', () => {
+      it('should prepare a code block', () => {
+        const { cellCodeKept, foreignDocumentsMap } =
+          document.extractForeignCode(
+            {
+              value: 'new line',
+              ceEditor: {} as Document.IEditor,
+              type: 'code'
+            },
+            { line: 0, column: 0 }
+          );
+        expect(cellCodeKept).toEqual('new line');
+        expect(foreignDocumentsMap.size).toEqual(0);
+      });
+      it('should prepare a markdown block', () => {
+        const { cellCodeKept, foreignDocumentsMap } =
+          document.extractForeignCode(
+            {
+              value: 'new line',
+              ceEditor: {} as Document.IEditor,
+              type: 'markdown'
+            },
+            { line: 0, column: 0 }
+          );
+        expect(cellCodeKept).toEqual('');
+        expect(foreignDocumentsMap.size).toEqual(1);
+      });
+      it('should prepare a raw text block', () => {
+        const { cellCodeKept, foreignDocumentsMap } =
+          document.extractForeignCode(
+            {
+              value: 'new line',
+              ceEditor: {} as Document.IEditor,
+              type: 'raw'
+            },
+            { line: 0, column: 0 }
+          );
+        expect(cellCodeKept).toEqual('');
+        expect(foreignDocumentsMap.size).toEqual(1);
+      });
+    });
+    describe('#chooseForeignDocument', () => {
+      it('should select the foreign document for markdown cell', () => {
+        const md: VirtualDocument = document['chooseForeignDocument'](
+          markdownCellExtractor
+        );
+        expect(md.uri).toBe('test.ipynb.python-markdown.md');
+      });
+      it('should select the foreign document for raw cell', () => {
+        const md: VirtualDocument =
+          document['chooseForeignDocument'](rawCellExtractor);
+        expect(md.uri).toBe('test.ipynb.python-text.txt');
+      });
+    });
+    describe('#closeExpiredDocuments', () => {
+      it('should close expired foreign documents', async () => {
+        // We start with a notebook having a code cell, a raw cell and a markdown cell
+        // this means we have two foreign documents which can expire: one for markdown
+        // cell and one for raw cell.
+        expect(new Set(document.foreignDocuments.keys())).toEqual(
+          new Set(['text', 'markdown'])
+        );
+        const newNotebookState = [
+          {
+            value: 'test line in markdown 1\ntest line in markdown 2',
+            ceEditor: {} as Document.IEditor,
+            type: 'markdown'
+          }
+        ];
+        // If user just removed the last raw cell we do expire the virtual document
+        // associated immediately (because if they are just cutting and pasting
+        // cells we may be able to recycle connections). However if user keeps modifying
+        // the notebook, we ultimately discard the virtual document as expired.
+        for (let i = 0; i < 10; i++) {
+          await document.updateManager.updateDocuments(newNotebookState);
+          document.closeExpiredDocuments();
+        }
+        expect(new Set(document.foreignDocuments.keys())).toEqual(
+          new Set(['markdown'])
+        );
+      });
+    });
+    describe('#openForeign', () => {
+      it('should create a new foreign document', () => {
+        const doc: VirtualDocument = document['openForeign'](
+          'javascript',
+          false,
+          'js'
+        );
+        expect(doc.uri).toBe('test.ipynb.python-javascript.js');
+        expect(doc.parent).toBe(document);
+        expect(document.foreignDocuments.has(doc.virtualId)).toEqual(true);
+      });
+    });
+    describe('#closeForeign', () => {
+      it('should emit the `foreignDocumentClosed` signal', () => {
+        const cb = jest.fn();
+        document.foreignDocumentClosed.connect(cb);
+        const md: VirtualDocument = document['chooseForeignDocument'](
+          markdownCellExtractor
+        );
+        document.closeForeign(md);
+        expect(cb).toHaveBeenCalled();
+      });
+      it('should close correctly foreign documents', () => {
+        const md: VirtualDocument = document['chooseForeignDocument'](
+          markdownCellExtractor
+        );
+        md.closeAllForeignDocuments = jest.fn();
+        document.closeForeign(md);
+        expect(document.foreignDocuments.has(md.virtualId)).toEqual(false);
+        expect(md.closeAllForeignDocuments).toHaveBeenCalled();
+        expect(md.isDisposed).toEqual(true);
+      });
+    });
+    describe('#closeAllForeignDocuments', () => {
+      it('should close all foreign documents', () => {
+        document.closeAllForeignDocuments();
+        expect(document.foreignDocuments.size).toEqual(0);
+      });
+    });
+    describe('#value', () => {
+      it('should get the content of the document', () => {
+        expect(document.value).toContain(
+          'test line in Python 1\ntest line in Python 2'
+        );
+      });
+      it('should get the markdown content of the document', () => {
+        const md = document['chooseForeignDocument'](markdownCellExtractor);
+
+        expect(md.value).toContain(
+          'test line in markdown 1\ntest line in markdown 2'
+        );
+      });
+    });
+    describe('#transformSourceToEditor', () => {
+      it('should return the position in editor', () => {
+        const position = document.transformSourceToEditor({
+          isSource: true,
+          ch: 2,
+          line: 2
+        });
+        expect(position).toEqual({ ch: 2, line: 0 });
+      });
+    });
+    describe('#transformVirtualToEditor', () => {
+      it('should return the position in editor', () => {
+        const position = document.transformVirtualToEditor({
+          isVirtual: true,
+          ch: 2,
+          line: 0
+        });
+        expect(position).toEqual({ ch: 2, line: 0 });
+      });
+    });
+  });
+});
diff --git a/packages/lsp/test/extractor_manager.spec.ts b/packages/lsp/test/extractor_manager.spec.ts
new file mode 100644
index 000000000000..d21bf06bac62
--- /dev/null
+++ b/packages/lsp/test/extractor_manager.spec.ts
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  CodeExtractorsManager,
+  IForeignCodeExtractor,
+  TextForeignCodeExtractor
+} from '@jupyterlab/lsp';
+
+describe('@jupyterlab/lsp', () => {
+  describe('CodeExtractorsManager', () => {
+    let manager: CodeExtractorsManager;
+    let extractor: IForeignCodeExtractor;
+    beforeEach(() => {
+      manager = new CodeExtractorsManager();
+      extractor = new TextForeignCodeExtractor({
+        language: 'markdown',
+        isStandalone: false,
+        file_extension: 'md',
+        cellType: ['markdown']
+      });
+    });
+    describe('#register', () => {
+      it('should register the extractor for all language', () => {
+        manager.register(extractor, null);
+        expect(manager['_extractorMapAnyLanguage'].get('markdown')).toContain(
+          extractor
+        );
+      });
+      it('should register the extractor for specified language', () => {
+        manager.register(extractor, 'python');
+        expect(
+          manager['_extractorMap'].get('markdown').get('python')
+        ).toContain(extractor);
+      });
+    });
+    describe('#getExtractors', () => {
+      it('should get the extractor for all language', () => {
+        manager.register(extractor, null);
+        expect(manager.getExtractors('markdown', null)).toContain(extractor);
+      });
+      it('should get the extractor for specified language', () => {
+        manager.register(extractor, 'python');
+        expect(manager.getExtractors('markdown', 'python')).toContain(
+          extractor
+        );
+      });
+    });
+  });
+});
diff --git a/packages/lsp/test/feature.spec.ts b/packages/lsp/test/feature.spec.ts
new file mode 100644
index 000000000000..c8d7575ea614
--- /dev/null
+++ b/packages/lsp/test/feature.spec.ts
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { FeatureManager, IFeature } from '@jupyterlab/lsp';
+
+const feature1: IFeature = {
+  id: 'foo',
+  capabilities: {
+    textDocument: {
+      rename: { dynamicRegistration: true }
+    }
+  }
+};
+const feature2: IFeature = {
+  id: 'foo2',
+  capabilities: {
+    textDocument: {
+      formatting: { dynamicRegistration: true }
+    }
+  }
+};
+
+describe('@jupyterlab/lsp', () => {
+  describe('FeatureManager', () => {
+    let manager: FeatureManager;
+    beforeEach(() => {
+      manager = new FeatureManager();
+    });
+    describe('#register', () => {
+      it('should register a new feature', async () => {
+        manager.register(feature1);
+        expect(manager.features.length).toEqual(1);
+      });
+      it('should merge capabilites of features', async () => {
+        manager.register(feature1);
+        manager.register(feature2);
+        expect(manager.features.length).toEqual(2);
+        expect(manager.clientCapabilities()).toEqual({
+          textDocument: {
+            formatting: { dynamicRegistration: true },
+            rename: { dynamicRegistration: true }
+          }
+        });
+      });
+    });
+  });
+});
diff --git a/packages/lsp/test/manager.spec.ts b/packages/lsp/test/manager.spec.ts
new file mode 100644
index 000000000000..fb4eaf7adcdd
--- /dev/null
+++ b/packages/lsp/test/manager.spec.ts
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { LanguageServerManager } from '@jupyterlab/lsp';
+import { ServerConnection } from '@jupyterlab/services';
+
+const spy = jest.spyOn(ServerConnection, 'makeRequest');
+const specs = {
+  /* eslint-disable */
+  pyls: {
+    argv: [''],
+    display_name: 'pyls',
+    env: {},
+    languages: ['python'],
+    mime_types: ['text/python', 'text/x-ipython'],
+    version: 2
+  }
+  /* eslint-enable  */
+};
+const sessions = {
+  /* eslint-disable */
+  pyls: {
+    handler_count: 0,
+    last_handler_message_at: null,
+    last_server_message_at: null,
+    spec: specs.pyls,
+    status: 'not_started'
+  }
+  /* eslint-enable  */
+};
+spy.mockImplementation((status, method, setting) => {
+  return Promise.resolve({
+    ok: true,
+    status: 200,
+    json: () => ({
+      sessions,
+      specs,
+      version: 2
+    })
+  }) as any;
+});
+describe('@jupyterlab/lsp', () => {
+  describe('LanguageServerManager', () => {
+    let manager: LanguageServerManager;
+    beforeEach(() => {
+      manager = new LanguageServerManager({});
+    });
+    describe('#fetchSessions', () => {
+      it('should fetch session from server', async () => {
+        await manager.fetchSessions();
+        expect(manager.sessions.has('pyls' as any)).toEqual(true);
+        expect(manager.specs.has('pyls' as any)).toEqual(true);
+      });
+    });
+
+    describe('#compareRanks', () => {
+      it('should raise warning if two server have the same rank', async () => {
+        console.warn = jest.fn();
+        const value = manager['compareRanks'](
+          'pylsp',
+          'unified-language-server'
+        );
+        expect((console.warn as jest.Mock).mock.calls[0][0]).toEqual(
+          'Two matching servers: pylsp and unified-language-server have the same rank; choose which one to use by changing the rank in Advanced Settings Editor'
+        );
+        expect(value).toEqual(-1);
+      });
+    });
+    describe('#getMatchingServers', () => {
+      it('should get the matching server', async () => {
+        const match = manager.getMatchingServers({
+          language: 'python',
+          mimeType: 'text/python'
+        });
+        expect(match).toEqual(['pyls']);
+      });
+    });
+    describe('#getMatchingSpecs', () => {
+      it('should get the matching spec', async () => {
+        const match = manager.getMatchingSpecs({
+          language: 'python',
+          mimeType: 'text/python'
+        });
+        expect(match.has('pyls' as any)).toEqual(true);
+      });
+    });
+  });
+});
diff --git a/packages/lsp/test/positioning.spec.ts b/packages/lsp/test/positioning.spec.ts
new file mode 100644
index 000000000000..c4164bda89d3
--- /dev/null
+++ b/packages/lsp/test/positioning.spec.ts
@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { offsetAtPosition, positionAtOffset } from '@jupyterlab/lsp';
+
+describe('positionAtOffset', () => {
+  it('works with single line', () => {
+    let position = positionAtOffset(0, ['']);
+    expect(position).toEqual({ column: 0, line: 0 });
+
+    position = positionAtOffset(0, ['abc']);
+    expect(position).toEqual({ column: 0, line: 0 });
+
+    position = positionAtOffset(1, ['abc']);
+    expect(position).toEqual({ column: 1, line: 0 });
+
+    position = positionAtOffset(2, ['abc']);
+    expect(position).toEqual({ column: 2, line: 0 });
+  });
+
+  it('works with two lines', () => {
+    let twoEmptyLines = '\n'.split('\n');
+    let twoSingleCharacterLines = 'a\nb'.split('\n');
+
+    let position = positionAtOffset(0, twoEmptyLines);
+    expect(position).toEqual({ column: 0, line: 0 });
+
+    position = positionAtOffset(1, twoEmptyLines);
+    expect(position).toEqual({ column: 0, line: 1 });
+
+    position = positionAtOffset(1, twoSingleCharacterLines);
+    expect(position).toEqual({ column: 1, line: 0 });
+
+    position = positionAtOffset(2, twoSingleCharacterLines);
+    expect(position).toEqual({ column: 0, line: 1 });
+
+    position = positionAtOffset(3, twoSingleCharacterLines);
+    expect(position).toEqual({ column: 1, line: 1 });
+  });
+});
+
+describe('offsetAtPosition', () => {
+  it('works with single line', () => {
+    let offset = offsetAtPosition({ column: 0, line: 0 }, ['']);
+    expect(offset).toEqual(0);
+
+    offset = offsetAtPosition({ column: 0, line: 0 }, ['abc']);
+    expect(offset).toEqual(0);
+
+    offset = offsetAtPosition({ column: 1, line: 0 }, ['abc']);
+    expect(offset).toEqual(1);
+
+    offset = offsetAtPosition({ column: 2, line: 0 }, ['abc']);
+    expect(offset).toEqual(2);
+  });
+
+  it('works with two lines', () => {
+    let twoEmptyLines = '\n'.split('\n');
+    let twoSingleCharacterLines = 'a\nb'.split('\n');
+
+    let offset = offsetAtPosition({ column: 0, line: 0 }, twoEmptyLines);
+    expect(offset).toEqual(0);
+
+    offset = offsetAtPosition({ column: 0, line: 1 }, twoEmptyLines);
+    expect(offset).toEqual(1);
+
+    offset = offsetAtPosition({ column: 1, line: 0 }, twoSingleCharacterLines);
+    expect(offset).toEqual(1);
+
+    offset = offsetAtPosition({ column: 0, line: 1 }, twoSingleCharacterLines);
+    expect(offset).toEqual(2);
+
+    offset = offsetAtPosition({ column: 1, line: 1 }, twoSingleCharacterLines);
+    expect(offset).toEqual(3);
+  });
+});
diff --git a/packages/lsp/test/schema.spec.ts b/packages/lsp/test/schema.spec.ts
new file mode 100644
index 000000000000..4ceb43215aee
--- /dev/null
+++ b/packages/lsp/test/schema.spec.ts
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const childProcess = require('child_process');
+
+describe('@jupyterlab/lsp', () => {
+  describe('schema.ts', () => {
+    it('verify the interfaces defined in `schema.ts` with the schema in jupyter_lsp', () => {
+      const value = childProcess.execSync('yarn build:schema check', {});
+      try {
+        expect(value.toString().includes('true')).toBe(true);
+      } catch (reason) {
+        throw new Error(
+          `'schema.ts' in '@jupyterlab/lsp' is not matching the 'jupyter_lsp' backend schema.
+  Please update 'schema.ts' by running \`npm run build:schema\` in '@jupyterlab/lsp' and commit the changes.`
+        );
+      }
+    });
+  });
+});
diff --git a/packages/docprovider-extension/tsconfig.json b/packages/lsp/tsconfig.json
similarity index 77%
rename from packages/docprovider-extension/tsconfig.json
rename to packages/lsp/tsconfig.json
index 50ec726d41e4..d2aa8019b5c9 100644
--- a/packages/docprovider-extension/tsconfig.json
+++ b/packages/lsp/tsconfig.json
@@ -7,19 +7,19 @@
   "include": ["src/**/*"],
   "references": [
     {
-      "path": "../application"
+      "path": "../apputils"
     },
     {
-      "path": "../coreutils"
+      "path": "../codeeditor"
     },
     {
-      "path": "../docprovider"
+      "path": "../coreutils"
     },
     {
-      "path": "../services"
+      "path": "../docregistry"
     },
     {
-      "path": "../shared-models"
+      "path": "../services"
     },
     {
       "path": "../translation"
diff --git a/packages/lsp/tsconfig.test.json b/packages/lsp/tsconfig.test.json
new file mode 100644
index 000000000000..84237f911aa2
--- /dev/null
+++ b/packages/lsp/tsconfig.test.json
@@ -0,0 +1,30 @@
+{
+  "extends": "../../tsconfigbase.test",
+  "include": ["src/**/*", "test/*"],
+  "references": [
+    {
+      "path": "../apputils"
+    },
+    {
+      "path": "../codeeditor"
+    },
+    {
+      "path": "../coreutils"
+    },
+    {
+      "path": "../docregistry"
+    },
+    {
+      "path": "../services"
+    },
+    {
+      "path": "../translation"
+    },
+    {
+      "path": "."
+    },
+    {
+      "path": "../testing"
+    }
+  ]
+}
diff --git a/packages/mainmenu-extension/package.json b/packages/mainmenu-extension/package.json
index a1a9c23b4e52..e78fb4d9b02f 100644
--- a/packages/mainmenu-extension/package.json
+++ b/packages/mainmenu-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/mainmenu-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Main Menu Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,23 +38,23 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/mainmenu-extension/src/index.ts b/packages/mainmenu-extension/src/index.ts
index 5f8d32eba562..6f073f2f9dd2 100644
--- a/packages/mainmenu-extension/src/index.ts
+++ b/packages/mainmenu-extension/src/index.ts
@@ -6,6 +6,7 @@
  */
 
 import {
+  createSemanticCommand,
   ILabShell,
   IRouter,
   JupyterFrontEnd,
@@ -21,13 +22,12 @@ import { PageConfig, URLExt } from '@jupyterlab/coreutils';
 import {
   IEditMenu,
   IFileMenu,
+  IHelpMenu,
   IKernelMenu,
   IMainMenu,
-  IMenuExtender,
   IRunMenu,
   ITabsMenu,
   IViewMenu,
-  JupyterLabMenu,
   MainMenu
 } from '@jupyterlab/mainmenu';
 import { ServerConnection } from '@jupyterlab/services';
@@ -35,11 +35,12 @@ import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator, TranslationBundle } from '@jupyterlab/translation';
 import {
   fastForwardIcon,
+  RankedMenu,
   refreshIcon,
   runIcon,
   stopIcon
 } from '@jupyterlab/ui-components';
-import { each, find } from '@lumino/algorithm';
+import { find } from '@lumino/algorithm';
 import { JSONExt } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { Menu, Widget } from '@lumino/widgets';
@@ -121,6 +122,8 @@ export namespace CommandIDs {
 
   export const openHelp = 'helpmenu:open';
 
+  export const getKernel = 'helpmenu:get-kernel';
+
   export const openFirst = 'mainmenu:open-first';
 }
 
@@ -129,6 +132,7 @@ export namespace CommandIDs {
  */
 const plugin: JupyterFrontEndPlugin<IMainMenu> = {
   id: PLUGIN_ID,
+  description: 'Adds and provides the application main menu.',
   requires: [IRouter, ITranslator],
   optional: [ICommandPalette, ILabShell, ISettingRegistry],
   provides: IMainMenu,
@@ -151,12 +155,15 @@ const plugin: JupyterFrontEndPlugin<IMainMenu> = {
     if (registry) {
       await Private.loadSettingsMenu(
         registry,
-        (aMenu: JupyterLabMenu) => {
-          menu.addMenu(aMenu, { rank: aMenu.rank });
+        (aMenu: RankedMenu) => {
+          menu.addMenu(aMenu, false, { rank: aMenu.rank });
         },
         options => MainMenu.generateMenu(commands, options, trans),
         translator
       );
+
+      // Trigger single update
+      menu.update();
     }
 
     // Only add quit button if the back-end supports it by checking page config.
@@ -169,6 +176,7 @@ const plugin: JupyterFrontEndPlugin<IMainMenu> = {
     createKernelMenu(app, menu.kernelMenu, trans);
     createRunMenu(app, menu.runMenu, trans);
     createViewMenu(app, menu.viewMenu, trans);
+    createHelpMenu(app, menu.helpMenu, trans);
 
     // The tabs menu relies on lab shell functionality.
     if (labShell) {
@@ -252,7 +260,7 @@ const plugin: JupyterFrontEndPlugin<IMainMenu> = {
 /**
  * Create the basic `Edit` menu.
  */
-export function createEditMenu(
+function createEditMenu(
   app: JupyterFrontEnd,
   menu: IEditMenu,
   trans: TranslationBundle
@@ -260,66 +268,70 @@ export function createEditMenu(
   const commands = app.commands;
 
   // Add the undo/redo commands the the Edit menu.
-  commands.addCommand(CommandIDs.undo, {
-    label: trans.__('Undo'),
-    isEnabled: Private.delegateEnabled(app, menu.undoers, 'undo'),
-    execute: Private.delegateExecute(app, menu.undoers, 'undo')
-  });
-  commands.addCommand(CommandIDs.redo, {
-    label: trans.__('Redo'),
-    isEnabled: Private.delegateEnabled(app, menu.undoers, 'redo'),
-    execute: Private.delegateExecute(app, menu.undoers, 'redo')
-  });
+  commands.addCommand(
+    CommandIDs.undo,
+    createSemanticCommand(
+      app,
+      menu.undoers.undo,
+      {
+        label: trans.__('Undo')
+      },
+      trans
+    )
+  );
+  commands.addCommand(
+    CommandIDs.redo,
+    createSemanticCommand(
+      app,
+      menu.undoers.redo,
+      {
+        label: trans.__('Redo')
+      },
+      trans
+    )
+  );
 
   // Add the clear commands to the Edit menu.
-  commands.addCommand(CommandIDs.clearCurrent, {
-    label: () => {
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.clearers,
-        'clearCurrent'
-      )();
-      let localizedLabel = trans.__('Clear');
-      if (enabled) {
-        localizedLabel = Private.delegateLabel(
-          app,
-          menu.clearers,
-          'clearCurrentLabel'
-        );
-      }
-      return localizedLabel;
-    },
-    isEnabled: Private.delegateEnabled(app, menu.clearers, 'clearCurrent'),
-    execute: Private.delegateExecute(app, menu.clearers, 'clearCurrent')
-  });
-  commands.addCommand(CommandIDs.clearAll, {
-    label: () => {
-      const enabled = Private.delegateEnabled(app, menu.clearers, 'clearAll')();
-      let localizedLabel = trans.__('Clear All');
-      if (enabled) {
-        localizedLabel = Private.delegateLabel(
-          app,
-          menu.clearers,
-          'clearAllLabel'
-        );
-      }
-      return localizedLabel;
-    },
-    isEnabled: Private.delegateEnabled(app, menu.clearers, 'clearAll'),
-    execute: Private.delegateExecute(app, menu.clearers, 'clearAll')
-  });
+  commands.addCommand(
+    CommandIDs.clearCurrent,
+    createSemanticCommand(
+      app,
+      menu.clearers.clearCurrent,
+      {
+        label: trans.__('Clear')
+      },
+      trans
+    )
+  );
+  commands.addCommand(
+    CommandIDs.clearAll,
+    createSemanticCommand(
+      app,
+      menu.clearers.clearAll,
+      {
+        label: trans.__('Clear All')
+      },
+      trans
+    )
+  );
 
-  commands.addCommand(CommandIDs.goToLine, {
-    label: trans.__('Go to Line…'),
-    isEnabled: Private.delegateEnabled(app, menu.goToLiners, 'goToLine'),
-    execute: Private.delegateExecute(app, menu.goToLiners, 'goToLine')
-  });
+  commands.addCommand(
+    CommandIDs.goToLine,
+    createSemanticCommand(
+      app,
+      menu.goToLiners,
+      {
+        label: trans.__('Go to Line…')
+      },
+      trans
+    )
+  );
 }
 
 /**
  * Create the basic `File` menu.
  */
-export function createFileMenu(
+function createFileMenu(
   app: JupyterFrontEnd,
   menu: IFileMenu,
   router: IRouter,
@@ -332,51 +344,32 @@ export function createFileMenu(
   // even if it cannot find a delegate for the activity.
   // In that case, we instead call the application `close` command.
   commands.addCommand(CommandIDs.closeAndCleanup, {
-    label: () => {
-      const localizedLabel = Private.delegateLabel(
-        app,
-        menu.closeAndCleaners,
-        'closeAndCleanupLabel'
-      );
-      return localizedLabel ? localizedLabel : trans.__('Close and Shutdown');
-    },
+    ...createSemanticCommand(
+      app,
+      menu.closeAndCleaners,
+      {
+        execute: 'application:close',
+        label: trans.__('Close and Shut Down'),
+        isEnabled: true
+      },
+      trans
+    ),
     isEnabled: () =>
-      !!app.shell.currentWidget && !!app.shell.currentWidget.title.closable,
-    execute: () => {
-      // Check if we have a registered delegate. If so, call that.
-      if (
-        Private.delegateEnabled(app, menu.closeAndCleaners, 'closeAndCleanup')()
-      ) {
-        return Private.delegateExecute(
-          app,
-          menu.closeAndCleaners,
-          'closeAndCleanup'
-        )();
-      }
-      // If we have no delegate, call the top-level application close.
-      return app.commands.execute('application:close');
-    }
+      !!app.shell.currentWidget && !!app.shell.currentWidget.title.closable
   });
 
   // Add a delegator command for creating a console for an activity.
-  commands.addCommand(CommandIDs.createConsole, {
-    label: () => {
-      const localizedLabel = Private.delegateLabel(
-        app,
-        menu.consoleCreators,
-        'createConsoleLabel'
-      );
-      return localizedLabel
-        ? localizedLabel
-        : trans.__('New Console for Activity');
-    },
-    isEnabled: Private.delegateEnabled(
+  commands.addCommand(
+    CommandIDs.createConsole,
+    createSemanticCommand(
       app,
       menu.consoleCreators,
-      'createConsole'
-    ),
-    execute: Private.delegateExecute(app, menu.consoleCreators, 'createConsole')
-  });
+      {
+        label: trans.__('New Console for Activity')
+      },
+      trans
+    )
+  );
 
   commands.addCommand(CommandIDs.shutdown, {
     label: trans.__('Shut Down'),
@@ -460,7 +453,7 @@ export function createFileMenu(
 /**
  * Create the basic `Kernel` menu.
  */
-export function createKernelMenu(
+function createKernelMenu(
   app: JupyterFrontEnd,
   menu: IKernelMenu,
   trans: TranslationBundle
@@ -468,80 +461,84 @@ export function createKernelMenu(
   const commands = app.commands;
 
   commands.addCommand(CommandIDs.interruptKernel, {
-    label: trans.__('Interrupt Kernel'),
-    caption: trans.__('Interrupt the kernel'),
-    icon: args => (args.toolbar ? stopIcon : undefined),
-    isEnabled: Private.delegateEnabled(
+    ...createSemanticCommand(
       app,
-      menu.kernelUsers,
-      'interruptKernel'
+      menu.kernelUsers.interruptKernel,
+      {
+        label: trans.__('Interrupt Kernel'),
+        caption: trans.__('Interrupt the kernel')
+      },
+      trans
     ),
-    execute: Private.delegateExecute(app, menu.kernelUsers, 'interruptKernel')
+    icon: args => (args.toolbar ? stopIcon : undefined)
   });
 
-  commands.addCommand(CommandIDs.reconnectToKernel, {
-    label: trans.__('Reconnect to Kernel'),
-    isEnabled: Private.delegateEnabled(
+  commands.addCommand(
+    CommandIDs.reconnectToKernel,
+    createSemanticCommand(
       app,
-      menu.kernelUsers,
-      'reconnectToKernel'
-    ),
-    execute: Private.delegateExecute(app, menu.kernelUsers, 'reconnectToKernel')
-  });
+      menu.kernelUsers.reconnectToKernel,
+      {
+        label: trans.__('Reconnect to Kernel')
+      },
+      trans
+    )
+  );
 
   commands.addCommand(CommandIDs.restartKernel, {
-    label: trans.__('Restart Kernel…'),
-    caption: trans.__('Restart the kernel'),
-    icon: args => (args.toolbar ? refreshIcon : undefined),
-    isEnabled: Private.delegateEnabled(app, menu.kernelUsers, 'restartKernel'),
-    execute: Private.delegateExecute(app, menu.kernelUsers, 'restartKernel')
-  });
-
-  commands.addCommand(CommandIDs.restartKernelAndClear, {
-    label: () => {
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.kernelUsers,
-        'restartKernelAndClear'
-      )();
-      let localizedLabel = trans.__('Restart Kernel and Clear…');
-      if (enabled) {
-        localizedLabel = Private.delegateLabel(
-          app,
-          menu.kernelUsers,
-          'restartKernelAndClearLabel'
-        );
-      }
-      return localizedLabel;
-    },
-    isEnabled: Private.delegateEnabled(
+    ...createSemanticCommand(
       app,
-      menu.kernelUsers,
-      'restartKernelAndClear'
+      menu.kernelUsers.restartKernel,
+      {
+        label: trans.__('Restart Kernel…'),
+        caption: trans.__('Restart the kernel')
+      },
+      trans
     ),
-    execute: Private.delegateExecute(
+    icon: args => (args.toolbar ? refreshIcon : undefined)
+  });
+
+  commands.addCommand(
+    CommandIDs.restartKernelAndClear,
+    createSemanticCommand(
       app,
-      menu.kernelUsers,
-      'restartKernelAndClear'
+      [menu.kernelUsers.restartKernel, menu.kernelUsers.clearWidget],
+      {
+        label: trans.__('Restart Kernel and Clear…')
+      },
+      trans
     )
-  });
+  );
 
-  commands.addCommand(CommandIDs.changeKernel, {
-    label: trans.__('Change Kernel…'),
-    isEnabled: Private.delegateEnabled(app, menu.kernelUsers, 'changeKernel'),
-    execute: Private.delegateExecute(app, menu.kernelUsers, 'changeKernel')
-  });
+  commands.addCommand(
+    CommandIDs.changeKernel,
+    createSemanticCommand(
+      app,
+      menu.kernelUsers.changeKernel,
+      {
+        label: trans.__('Change Kernel…')
+      },
+      trans
+    )
+  );
 
-  commands.addCommand(CommandIDs.shutdownKernel, {
-    label: trans.__('Shut Down Kernel'),
-    isEnabled: Private.delegateEnabled(app, menu.kernelUsers, 'shutdownKernel'),
-    execute: Private.delegateExecute(app, menu.kernelUsers, 'shutdownKernel')
-  });
+  commands.addCommand(
+    CommandIDs.shutdownKernel,
+    createSemanticCommand(
+      app,
+      menu.kernelUsers.shutdownKernel,
+      {
+        label: trans.__('Shut Down Kernel'),
+        caption: trans.__('Shut down kernel')
+      },
+      trans
+    )
+  );
 
   commands.addCommand(CommandIDs.shutdownAllKernels, {
     label: trans.__('Shut Down All Kernels…'),
     isEnabled: () => {
-      return app.serviceManager.sessions.running().next() !== undefined;
+      return !app.serviceManager.sessions.running().next().done;
     },
     execute: () => {
       return showDialog({
@@ -563,71 +560,54 @@ export function createKernelMenu(
 /**
  * Create the basic `View` menu.
  */
-export function createViewMenu(
+function createViewMenu(
   app: JupyterFrontEnd,
   menu: IViewMenu,
   trans: TranslationBundle
 ): void {
   const commands = app.commands;
 
-  commands.addCommand(CommandIDs.lineNumbering, {
-    label: trans.__('Show Line Numbers'),
-    isEnabled: Private.delegateEnabled(
+  commands.addCommand(
+    CommandIDs.lineNumbering,
+    createSemanticCommand(
       app,
-      menu.editorViewers,
-      'toggleLineNumbers'
-    ),
-    isToggled: Private.delegateToggled(
-      app,
-      menu.editorViewers,
-      'lineNumbersToggled'
-    ),
-    execute: Private.delegateExecute(
-      app,
-      menu.editorViewers,
-      'toggleLineNumbers'
+      menu.editorViewers.toggleLineNumbers,
+      {
+        label: trans.__('Show Line Numbers')
+      },
+      trans
     )
-  });
+  );
 
-  commands.addCommand(CommandIDs.matchBrackets, {
-    label: trans.__('Match Brackets'),
-    isEnabled: Private.delegateEnabled(
+  commands.addCommand(
+    CommandIDs.matchBrackets,
+    createSemanticCommand(
       app,
-      menu.editorViewers,
-      'toggleMatchBrackets'
-    ),
-    isToggled: Private.delegateToggled(
-      app,
-      menu.editorViewers,
-      'matchBracketsToggled'
-    ),
-    execute: Private.delegateExecute(
-      app,
-      menu.editorViewers,
-      'toggleMatchBrackets'
+      menu.editorViewers.toggleMatchBrackets,
+      {
+        label: trans.__('Match Brackets')
+      },
+      trans
     )
-  });
+  );
 
-  commands.addCommand(CommandIDs.wordWrap, {
-    label: trans.__('Wrap Words'),
-    isEnabled: Private.delegateEnabled(
+  commands.addCommand(
+    CommandIDs.wordWrap,
+    createSemanticCommand(
       app,
-      menu.editorViewers,
-      'toggleWordWrap'
-    ),
-    isToggled: Private.delegateToggled(
-      app,
-      menu.editorViewers,
-      'wordWrapToggled'
-    ),
-    execute: Private.delegateExecute(app, menu.editorViewers, 'toggleWordWrap')
-  });
+      menu.editorViewers.toggleWordWrap,
+      {
+        label: trans.__('Wrap Words')
+      },
+      trans
+    )
+  );
 }
 
 /**
  * Create the basic `Run` menu.
  */
-export function createRunMenu(
+function createRunMenu(
   app: JupyterFrontEnd,
   menu: IRunMenu,
   trans: TranslationBundle
@@ -635,112 +615,49 @@ export function createRunMenu(
   const commands = app.commands;
 
   commands.addCommand(CommandIDs.run, {
-    label: () => {
-      const localizedLabel = Private.delegateLabel(
-        app,
-        menu.codeRunners,
-        'runLabel'
-      );
-      const enabled = Private.delegateEnabled(app, menu.codeRunners, 'run')();
-      return enabled ? localizedLabel : trans.__('Run Selected');
-    },
-    caption: () => {
-      const localizedCaption = Private.delegateLabel(
-        app,
-        menu.codeRunners,
-        'runCaption'
-      );
-      const enabled = Private.delegateEnabled(app, menu.codeRunners, 'run')();
-      return enabled ? localizedCaption : trans.__('Run Selected');
-    },
-    icon: args => (args.toolbar ? runIcon : undefined),
-    isEnabled: Private.delegateEnabled(app, menu.codeRunners, 'run'),
-    execute: Private.delegateExecute(app, menu.codeRunners, 'run')
+    ...createSemanticCommand(
+      app,
+      menu.codeRunners.run,
+      {
+        label: trans.__('Run Selected'),
+        caption: trans.__('Run Selected')
+      },
+      trans
+    ),
+    icon: args => (args.toolbar ? runIcon : undefined)
   });
 
-  commands.addCommand(CommandIDs.runAll, {
-    label: () => {
-      let localizedLabel = trans.__('Run All');
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.codeRunners,
-        'runAll'
-      )();
-      if (enabled) {
-        localizedLabel = Private.delegateLabel(
-          app,
-          menu.codeRunners,
-          'runAllLabel'
-        );
-      }
-      return localizedLabel;
-    },
-    caption: () => {
-      let localizedCaption = trans.__('Run All');
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.codeRunners,
-        'runAll'
-      )();
-      if (enabled) {
-        localizedCaption = Private.delegateLabel(
-          app,
-          menu.codeRunners,
-          'runAllCaption'
-        );
-      }
-      return localizedCaption;
-    },
-    isEnabled: Private.delegateEnabled(app, menu.codeRunners, 'runAll'),
-    execute: Private.delegateExecute(app, menu.codeRunners, 'runAll')
-  });
+  commands.addCommand(
+    CommandIDs.runAll,
+    createSemanticCommand(
+      app,
+      menu.codeRunners.runAll,
+      {
+        label: trans.__('Run All'),
+        caption: trans.__('Run All')
+      },
+      trans
+    )
+  );
+
   commands.addCommand(CommandIDs.restartAndRunAll, {
-    label: () => {
-      let localizedLabel = trans.__('Restart Kernel and Run All');
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.codeRunners,
-        'restartAndRunAll'
-      )();
-      if (enabled) {
-        localizedLabel = Private.delegateLabel(
-          app,
-          menu.codeRunners,
-          'restartAndRunAllLabel'
-        );
-      }
-      return localizedLabel;
-    },
-    caption: () => {
-      let localizedCaption = trans.__('Restart Kernel and Run All');
-      const enabled = Private.delegateEnabled(
-        app,
-        menu.codeRunners,
-        'restartAndRunAll'
-      )();
-      if (enabled) {
-        localizedCaption = Private.delegateLabel(
-          app,
-          menu.codeRunners,
-          'restartAndRunAllLabel'
-        );
-      }
-      return localizedCaption;
-    },
-    icon: args => (args.toolbar ? fastForwardIcon : undefined),
-    isEnabled: Private.delegateEnabled(
+    ...createSemanticCommand(
       app,
-      menu.codeRunners,
-      'restartAndRunAll'
+      [menu.codeRunners.restart, menu.codeRunners.runAll],
+      {
+        label: trans.__('Restart Kernel and Run All'),
+        caption: trans.__('Restart Kernel and Run All')
+      },
+      trans
     ),
-    execute: Private.delegateExecute(app, menu.codeRunners, 'restartAndRunAll')
+    icon: args => (args.toolbar ? fastForwardIcon : undefined)
   });
 }
 
 /**
  * Create the basic `Tabs` menu.
  */
-export function createTabsMenu(
+function createTabsMenu(
   app: JupyterFrontEnd,
   menu: ITabsMenu,
   labShell: ILabShell | null,
@@ -756,6 +673,9 @@ export function createTabsMenu(
   // Command to activate a widget by id.
   commands.addCommand(CommandIDs.activateById, {
     label: args => {
+      if (args.id === undefined) {
+        return trans.__('Activate a widget by its `id`.');
+      }
       const id = args['id'] || '';
       const widget = find(app.shell.widgets('main'), w => w.id === id);
       return (widget && widget.title.label) || '';
@@ -789,7 +709,7 @@ export function createTabsMenu(
         tabGroup.length = 0;
 
         let isPreviouslyUsedTabAttached = false;
-        each(app.shell.widgets('main'), widget => {
+        for (const widget of app.shell.widgets('main')) {
           if (widget.id === previousId) {
             isPreviouslyUsedTabAttached = true;
           }
@@ -797,7 +717,7 @@ export function createTabsMenu(
             command: CommandIDs.activateById,
             args: { id: widget.id }
           });
-        });
+        }
         disposable = menu.addGroup(tabGroup, 1);
         previousId = isPreviouslyUsedTabAttached ? previousId : '';
       };
@@ -817,126 +737,34 @@ export function createTabsMenu(
   }
 }
 
+/**
+ * Create the basic `Help` menu.
+ */
+function createHelpMenu(
+  app: JupyterFrontEnd,
+  menu: IHelpMenu,
+  trans: TranslationBundle
+): void {
+  app.commands.addCommand(
+    CommandIDs.getKernel,
+    createSemanticCommand(
+      app,
+      menu.getKernel,
+      {
+        label: trans.__('Get Kernel'),
+        isVisible: false
+      },
+      trans
+    )
+  );
+}
+
 export default plugin;
 
 /**
  * A namespace for Private data.
  */
 namespace Private {
-  /**
-   * Return the first value of the iterable that satisfies the predicate
-   * function.
-   */
-  function find<T>(
-    it: Iterable<T>,
-    predicate: (value: T) => boolean
-  ): T | undefined {
-    for (const value of it) {
-      if (predicate(value)) {
-        return value;
-      }
-    }
-    return undefined;
-  }
-
-  /**
-   * A utility function that delegates a portion of a label to an IMenuExtender.
-   */
-  export function delegateLabel<E extends IMenuExtender<Widget>>(
-    app: JupyterFrontEnd,
-    s: Set<E>,
-    label: keyof E
-  ): string {
-    const widget = app.shell.currentWidget;
-    const extender = widget
-      ? find(s, value => value.tracker.has(widget!))
-      : undefined;
-
-    if (!extender || !extender[label]) {
-      return '';
-    } else {
-      const count: number = extender.tracker.size;
-
-      // Coerce the result to be a string. When Typedoc is updated to use
-      // Typescript 2.8, we can possibly use conditional types to get Typescript
-      // to recognize this is a string.
-      return (extender[label] as any)(count) as string;
-    }
-  }
-
-  /**
-   * A utility function that delegates command execution
-   * to an IMenuExtender.
-   */
-  export function delegateExecute<E extends IMenuExtender<Widget>>(
-    app: JupyterFrontEnd,
-    s: Set<E>,
-    executor: keyof E
-  ): () => Promise<any> {
-    return () => {
-      const widget = app.shell.currentWidget;
-      const extender = widget
-        ? find(s, value => value.tracker.has(widget!))
-        : undefined;
-      if (!extender) {
-        return Promise.resolve(void 0);
-      }
-      // Coerce the result to be a function. When Typedoc is updated to use
-      // Typescript 2.8, we can possibly use conditional types to get Typescript
-      // to recognize this is a function.
-      const f = (extender[executor] as any) as (w: Widget) => Promise<any>;
-      return f(widget!);
-    };
-  }
-
-  /**
-   * A utility function that delegates whether a command is enabled
-   * to an IMenuExtender.
-   */
-  export function delegateEnabled<E extends IMenuExtender<Widget>>(
-    app: JupyterFrontEnd,
-    s: Set<E>,
-    executor: keyof E
-  ): () => boolean {
-    return () => {
-      const widget = app.shell.currentWidget;
-      const extender = widget
-        ? find(s, value => value.tracker.has(widget!))
-        : undefined;
-      return (
-        !!extender &&
-        !!extender[executor] &&
-        (extender.isEnabled && widget ? extender.isEnabled(widget) : true)
-      );
-    };
-  }
-
-  /**
-   * A utility function that delegates whether a command is toggled
-   * for an IMenuExtender.
-   */
-  export function delegateToggled<E extends IMenuExtender<Widget>>(
-    app: JupyterFrontEnd,
-    s: Set<E>,
-    toggled: keyof E
-  ): () => boolean {
-    return () => {
-      const widget = app.shell.currentWidget;
-      const extender = widget
-        ? find(s, value => value.tracker.has(widget!))
-        : undefined;
-      // Coerce extender[toggled] to be a function. When Typedoc is updated to use
-      // Typescript 2.8, we can possibly use conditional types to get Typescript
-      // to recognize this is a function.
-      return (
-        !!extender &&
-        !!extender[toggled] &&
-        !!widget &&
-        !!((extender[toggled] as any) as (w: Widget) => () => boolean)(widget)
-      );
-    };
-  }
-
   async function displayInformation(trans: TranslationBundle): Promise<void> {
     const result = await showDialog({
       title: trans.__('Information'),
@@ -957,7 +785,7 @@ namespace Private {
   export async function loadSettingsMenu(
     registry: ISettingRegistry,
     addMenu: (menu: Menu) => void,
-    menuFactory: (options: IMainMenu.IMenuOptions) => JupyterLabMenu,
+    menuFactory: (options: IMainMenu.IMenuOptions) => RankedMenu,
     translator: ITranslator
   ): Promise<void> {
     const trans = translator.load('jupyterlab');
diff --git a/packages/mainmenu/.vscode/launch.json b/packages/mainmenu/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/mainmenu/.vscode/launch.json
+++ b/packages/mainmenu/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/mainmenu/babel.config.js b/packages/mainmenu/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/mainmenu/babel.config.js
+++ b/packages/mainmenu/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/mainmenu/jest.config.js b/packages/mainmenu/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/mainmenu/jest.config.js
+++ b/packages/mainmenu/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/mainmenu/package.json b/packages/mainmenu/package.json
index 7e604c266cdb..e18f9157510b 100644
--- a/packages/mainmenu/package.json
+++ b/packages/mainmenu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/mainmenu",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Main Menu",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,28 +37,26 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/mainmenu/src/edit.ts b/packages/mainmenu/src/edit.ts
index feb34c1d140b..171814bb71f4 100644
--- a/packages/mainmenu/src/edit.ts
+++ b/packages/mainmenu/src/edit.ts
@@ -2,27 +2,26 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for an Edit menu.
  */
 export interface IEditMenu extends IRankedMenu {
   /**
-   * A set storing IUndoers for the Edit menu.
+   * Semantic commands IUndoers for the Edit menu.
    */
-  readonly undoers: Set<IEditMenu.IUndoer<Widget>>;
+  readonly undoers: IEditMenu.IUndoer;
 
   /**
-   * A set storing IClearers for the Edit menu.
+   * Semantic commands IClearers for the Edit menu.
    */
-  readonly clearers: Set<IEditMenu.IClearer<Widget>>;
+  readonly clearers: IEditMenu.IClearer;
 
   /**
-   * A set storing IGoToLiners for the Edit menu.
+   * Semantic commands IGoToLiners for the Edit menu.
    */
-  readonly goToLiners: Set<IEditMenu.IGoToLiner<Widget>>;
+  readonly goToLiners: SemanticCommand;
 }
 
 /**
@@ -35,36 +34,33 @@ export class EditMenu extends RankedMenu implements IEditMenu {
   constructor(options: IRankedMenu.IOptions) {
     super(options);
 
-    this.undoers = new Set<IEditMenu.IUndoer<Widget>>();
+    this.undoers = {
+      redo: new SemanticCommand(),
+      undo: new SemanticCommand()
+    };
 
-    this.clearers = new Set<IEditMenu.IClearer<Widget>>();
+    this.clearers = {
+      clearAll: new SemanticCommand(),
+      clearCurrent: new SemanticCommand()
+    };
 
-    this.goToLiners = new Set<IEditMenu.IGoToLiner<Widget>>();
+    this.goToLiners = new SemanticCommand();
   }
 
   /**
-   * A set storing IUndoers for the Edit menu.
+   * Semantic commands IUndoers for the Edit menu.
    */
-  readonly undoers: Set<IEditMenu.IUndoer<Widget>>;
+  readonly undoers: IEditMenu.IUndoer;
 
   /**
-   * A set storing IClearers for the Edit menu.
+   * Semantic commands IClearers for the Edit menu.
    */
-  readonly clearers: Set<IEditMenu.IClearer<Widget>>;
+  readonly clearers: IEditMenu.IClearer;
 
   /**
-   * A set storing IGoToLiners for the Edit menu.
+   * Semantic commands IGoToLiners for the Edit menu.
    */
-  readonly goToLiners: Set<IEditMenu.IGoToLiner<Widget>>;
-
-  /**
-   * Dispose of the resources held by the edit menu.
-   */
-  dispose(): void {
-    this.undoers.clear();
-    this.clearers.clear();
-    super.dispose();
-  }
+  readonly goToLiners: SemanticCommand;
 }
 
 /**
@@ -74,56 +70,30 @@ export namespace IEditMenu {
   /**
    * Interface for an activity that uses Undo/Redo.
    */
-  export interface IUndoer<T extends Widget> extends IMenuExtender<T> {
+  export interface IUndoer {
     /**
-     * Execute an undo command for the activity.
+     * A semantic command to execute an undo command for the activity.
      */
-    undo?: (widget: T) => void;
+    undo: SemanticCommand;
 
     /**
-     * Execute a redo command for the activity.
+     * A semantic command to execute a redo command for the activity.
      */
-    redo?: (widget: T) => void;
+    redo: SemanticCommand;
   }
 
   /**
    * Interface for an activity that wants to register a 'Clear...' menu item
    */
-  export interface IClearer<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * A function to create the label for the `clearCurrent`action.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    clearCurrentLabel?: (n: number) => string;
-
-    /**
-     * A function to create the label for the `clearAll`action.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    clearAllLabel?: (n: number) => string;
-
-    /**
-     * A function to clear the currently portion of activity.
-     */
-    clearCurrent?: (widget: T) => void;
-
+  export interface IClearer {
     /**
-     * A function to clear all of an activity.
+     * A semantic command to clear the currently portion of activity.
      */
-    clearAll?: (widget: T) => void;
-  }
+    clearCurrent: SemanticCommand;
 
-  /**
-   * Interface for an activity that uses Go to Line.
-   */
-  export interface IGoToLiner<T extends Widget> extends IMenuExtender<T> {
     /**
-     * Execute a go to line command for the activity.
+     * A semantic command to clear all of an activity.
      */
-    goToLine?: (widget: T) => void;
+    clearAll: SemanticCommand;
   }
 }
diff --git a/packages/mainmenu/src/file.ts b/packages/mainmenu/src/file.ts
index 2ea10e96773c..df6d2c97cb5c 100644
--- a/packages/mainmenu/src/file.ts
+++ b/packages/mainmenu/src/file.ts
@@ -3,8 +3,7 @@
 
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
 import { find } from '@lumino/algorithm';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for a File menu.
@@ -21,14 +20,14 @@ export interface IFileMenu extends IRankedMenu {
   readonly newMenu: IRankedMenu;
 
   /**
-   * The close and cleanup extension point.
+   * The close and cleanup semantic command.
    */
-  readonly closeAndCleaners: Set<IFileMenu.ICloseAndCleaner<Widget>>;
+  readonly closeAndCleaners: SemanticCommand;
 
   /**
-   * A set storing IConsoleCreators for the File menu.
+   * The console creator semantic command.
    */
-  readonly consoleCreators: Set<IFileMenu.IConsoleCreator<Widget>>;
+  readonly consoleCreators: SemanticCommand;
 }
 
 /**
@@ -39,9 +38,8 @@ export class FileMenu extends RankedMenu implements IFileMenu {
     super(options);
     this.quitEntry = false;
 
-    // Create the "New" submenu.
-    this.closeAndCleaners = new Set<IFileMenu.ICloseAndCleaner<Widget>>();
-    this.consoleCreators = new Set<IFileMenu.IConsoleCreator<Widget>>();
+    this.closeAndCleaners = new SemanticCommand();
+    this.consoleCreators = new SemanticCommand();
   }
 
   /**
@@ -60,21 +58,20 @@ export class FileMenu extends RankedMenu implements IFileMenu {
   }
 
   /**
-   * The close and cleanup extension point.
+   * The close and cleanup semantic command.
    */
-  readonly closeAndCleaners: Set<IFileMenu.ICloseAndCleaner<Widget>>;
+  readonly closeAndCleaners: SemanticCommand;
 
   /**
-   * A set storing IConsoleCreators for the Kernel menu.
+   * The console creator semantic command.
    */
-  readonly consoleCreators: Set<IFileMenu.IConsoleCreator<Widget>>;
+  readonly consoleCreators: SemanticCommand;
 
   /**
    * Dispose of the resources held by the file menu.
    */
   dispose(): void {
     this._newMenu?.dispose();
-    this.consoleCreators.clear();
     super.dispose();
   }
 
@@ -85,45 +82,3 @@ export class FileMenu extends RankedMenu implements IFileMenu {
 
   private _newMenu: RankedMenu;
 }
-
-/**
- * Namespace for IFileMenu
- */
-export namespace IFileMenu {
-  /**
-   * Interface for an activity that has some cleanup action associated
-   * with it in addition to merely closing its widget in the main area.
-   */
-  export interface ICloseAndCleaner<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * A function to create the label for the `closeAndCleanup`action.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    closeAndCleanupLabel?: (n: number) => string;
-
-    /**
-     * A function to perform the close and cleanup action.
-     */
-    closeAndCleanup: (widget: T) => Promise<void>;
-  }
-
-  /**
-   * Interface for a command to create a console for an activity.
-   */
-  export interface IConsoleCreator<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * A function to create the label for the `createConsole`action.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    createConsoleLabel?: (n: number) => string;
-
-    /**
-     * The function to create the console.
-     */
-    createConsole: (widget: T) => Promise<void>;
-  }
-}
diff --git a/packages/mainmenu/src/help.ts b/packages/mainmenu/src/help.ts
index 01d9910aa642..9c2ed6de399e 100644
--- a/packages/mainmenu/src/help.ts
+++ b/packages/mainmenu/src/help.ts
@@ -1,21 +1,22 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Kernel } from '@jupyterlab/services';
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for a Help menu.
  */
 export interface IHelpMenu extends IRankedMenu {
   /**
-   * A set of kernel users for the help menu.
+   * A semantic command to get the kernel for the help menu.
    * This is used to populate additional help
    * links provided by the kernel of a widget.
+   *
+   * #### Note
+   * The command must return a Kernel.IKernelConnection object
    */
-  readonly kernelUsers: Set<IHelpMenu.IKernelUser<Widget>>;
+  readonly getKernel: SemanticCommand;
 }
 
 /**
@@ -27,29 +28,16 @@ export class HelpMenu extends RankedMenu implements IHelpMenu {
    */
   constructor(options: IRankedMenu.IOptions) {
     super(options);
-    this.kernelUsers = new Set<IHelpMenu.IKernelUser<Widget>>();
+    this.getKernel = new SemanticCommand();
   }
 
   /**
-   * A set of kernel users for the help menu.
+   * A semantic command to get the kernel for the help menu.
    * This is used to populate additional help
    * links provided by the kernel of a widget.
+   *
+   * #### Note
+   * The command must return a Kernel.IKernelConnection object
    */
-  readonly kernelUsers: Set<IHelpMenu.IKernelUser<Widget>>;
-}
-
-/**
- * Namespace for IHelpMenu
- */
-export namespace IHelpMenu {
-  /**
-   * Interface for a Kernel user to register itself
-   * with the IHelpMenu's semantic extension points.
-   */
-  export interface IKernelUser<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * A function to get the kernel for a widget.
-     */
-    getKernel: (widget: T) => Kernel.IKernelConnection | null;
-  }
+  readonly getKernel: SemanticCommand;
 }
diff --git a/packages/mainmenu/src/index.ts b/packages/mainmenu/src/index.ts
index c022320f69de..b8db169755fb 100644
--- a/packages/mainmenu/src/index.ts
+++ b/packages/mainmenu/src/index.ts
@@ -15,11 +15,3 @@ export * from './settings';
 export * from './view';
 export * from './tabs';
 export * from './tokens';
-
-/**
- * @deprecated since version 3.1
- */
-export {
-  IRankedMenu as IJupyterLabMenu,
-  RankedMenu as JupyterLabMenu
-} from '@jupyterlab/ui-components';
diff --git a/packages/mainmenu/src/kernel.ts b/packages/mainmenu/src/kernel.ts
index ee43c899aada..e6d01bd89abc 100644
--- a/packages/mainmenu/src/kernel.ts
+++ b/packages/mainmenu/src/kernel.ts
@@ -2,17 +2,16 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for a Kernel menu.
  */
 export interface IKernelMenu extends IRankedMenu {
   /**
-   * A set storing IKernelUsers for the Kernel menu.
+   * Semantic commands IKernelUsers for the Kernel menu.
    */
-  readonly kernelUsers: Set<IKernelMenu.IKernelUser<Widget>>;
+  readonly kernelUsers: IKernelMenu.IKernelUser;
 }
 
 /**
@@ -24,21 +23,20 @@ export class KernelMenu extends RankedMenu implements IKernelMenu {
    */
   constructor(options: IRankedMenu.IOptions) {
     super(options);
-    this.kernelUsers = new Set<IKernelMenu.IKernelUser<Widget>>();
+    this.kernelUsers = {
+      changeKernel: new SemanticCommand(),
+      clearWidget: new SemanticCommand(),
+      interruptKernel: new SemanticCommand(),
+      reconnectToKernel: new SemanticCommand(),
+      restartKernel: new SemanticCommand(),
+      shutdownKernel: new SemanticCommand()
+    };
   }
 
   /**
-   * A set storing IKernelUsers for the Kernel menu.
+   * Semantic commands IKernelUsers for the Kernel menu.
    */
-  readonly kernelUsers: Set<IKernelMenu.IKernelUser<Widget>>;
-
-  /**
-   * Dispose of the resources held by the kernel menu.
-   */
-  dispose(): void {
-    this.kernelUsers.clear();
-    super.dispose();
-  }
+  readonly kernelUsers: IKernelMenu.IKernelUser;
 }
 
 /**
@@ -49,45 +47,36 @@ export namespace IKernelMenu {
    * Interface for a Kernel user to register itself
    * with the IKernelMenu's semantic extension points.
    */
-  export interface IKernelUser<T extends Widget> extends IMenuExtender<T> {
+  export interface IKernelUser {
     /**
-     * A function to interrupt the kernel.
+     * A semantic command to interrupt the kernel.
      */
-    interruptKernel?: (widget: T) => Promise<void>;
+    interruptKernel: SemanticCommand;
 
     /**
-     * A function to reconnect to the kernel
-     */
-    reconnectToKernel?: (widget: T) => Promise<void>;
-
-    /**
-     * A function to restart the kernel, which
-     * returns a promise of whether the kernel was restarted.
+     * A semantic command to reconnect to the kernel
      */
-    restartKernel?: (widget: T) => Promise<boolean>;
+    reconnectToKernel: SemanticCommand;
 
     /**
-     * A function to restart the kernel and clear the widget, which
+     * A semantic command to restart the kernel, which
      * returns a promise of whether the kernel was restarted.
      */
-    restartKernelAndClear?: (widget: T) => Promise<boolean>;
+    restartKernel: SemanticCommand;
 
     /**
-     * A function to change the kernel.
+     * A semantic command to clear the widget.
      */
-    changeKernel?: (widget: T) => Promise<void>;
+    clearWidget: SemanticCommand;
 
     /**
-     * A function to shut down the kernel.
+     * A semantic command to change the kernel.
      */
-    shutdownKernel?: (widget: T) => Promise<void>;
+    changeKernel: SemanticCommand;
 
     /**
-     * A function to return the label associated to the `restartKernelAndClear` action.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
+     * A semantic command to shut down the kernel.
      */
-    restartKernelAndClearLabel?: (n: number) => string;
+    shutdownKernel: SemanticCommand;
   }
 }
diff --git a/packages/mainmenu/src/mainmenu.ts b/packages/mainmenu/src/mainmenu.ts
index 847e1f884d95..91104d80bbc4 100644
--- a/packages/mainmenu/src/mainmenu.ts
+++ b/packages/mainmenu/src/mainmenu.ts
@@ -24,7 +24,8 @@ export class MainMenu extends MenuBar implements IMainMenu {
    * Construct the main menu bar.
    */
   constructor(commands: CommandRegistry) {
-    super({ forceItemsPosition: { forceX: false, forceY: true } });
+    let options = { forceItemsPosition: { forceX: false, forceY: true } };
+    super(options);
     this._commands = commands;
   }
 
@@ -143,7 +144,11 @@ export class MainMenu extends MenuBar implements IMainMenu {
   /**
    * Add a new menu to the main menu bar.
    */
-  addMenu(menu: Menu, options: IMainMenu.IAddOptions = {}): void {
+  addMenu(
+    menu: Menu,
+    update: boolean = true,
+    options: IMainMenu.IAddOptions = {}
+  ): void {
     if (ArrayExt.firstIndexOf(this.menus, menu) > -1) {
       return;
     }
diff --git a/packages/mainmenu/src/run.ts b/packages/mainmenu/src/run.ts
index d540e510878d..248aba89e2ba 100644
--- a/packages/mainmenu/src/run.ts
+++ b/packages/mainmenu/src/run.ts
@@ -2,20 +2,16 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for a Run menu.
  */
 export interface IRunMenu extends IRankedMenu {
   /**
-   * A set storing ICodeRunner for the Run menu.
-   *
-   * ### Notes
-   * The key for the set may be used in menu labels.
+   * Semantic commands ICodeRunner for the Run menu.
    */
-  readonly codeRunners: Set<IRunMenu.ICodeRunner<Widget>>;
+  readonly codeRunners: IRunMenu.ICodeRunner;
 }
 
 /**
@@ -27,24 +23,17 @@ export class RunMenu extends RankedMenu implements IRunMenu {
    */
   constructor(options: IRankedMenu.IOptions) {
     super(options);
-    this.codeRunners = new Set<IRunMenu.ICodeRunner<Widget>>();
+    this.codeRunners = {
+      restart: new SemanticCommand(),
+      run: new SemanticCommand(),
+      runAll: new SemanticCommand()
+    };
   }
 
   /**
-   * A set storing ICodeRunner for the Run menu.
-   *
-   * ### Notes
-   * The key for the set may be used in menu labels.
+   * Semantic commands ICodeRunner for the Run menu.
    */
-  readonly codeRunners: Set<IRunMenu.ICodeRunner<Widget>>;
-
-  /**
-   * Dispose of the resources held by the run menu.
-   */
-  dispose(): void {
-    this.codeRunners.clear();
-    super.dispose();
-  }
+  readonly codeRunners: IRunMenu.ICodeRunner;
 }
 
 /**
@@ -55,69 +44,18 @@ export namespace IRunMenu {
    * An object that runs code, which may be
    * registered with the Run menu.
    */
-  export interface ICodeRunner<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * Return the caption associated to the `run` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    runCaption?: (n: number) => string;
-
-    /**
-     * Return the label associated to the `run` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    runLabel?: (n: number) => string;
-
-    /**
-     * Return the caption associated to the `runAll` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    runAllCaption?: (n: number) => string;
-
-    /**
-     * Return the label associated to the `runAll` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    runAllLabel?: (n: number) => string;
-
-    /**
-     * Return the caption associated to the `restartAndRunAll` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    restartAndRunAllCaption?: (n: number) => string;
-
-    /**
-     * Return the label associated to the `restartAndRunAll` function.
-     *
-     * This function receives the number of items `n` to be able to provided
-     * correct pluralized forms of translations.
-     */
-    restartAndRunAllLabel?: (n: number) => string;
-
+  export interface ICodeRunner {
     /**
-     * A function to run a chunk of code.
+     * A semantic command to run a subpart of a document.
      */
-    run?: (widget: T) => Promise<void>;
-
+    run: SemanticCommand;
     /**
-     * A function to run the entirety of the code hosted by the widget.
+     * A semantic command to run a whole document
      */
-    runAll?: (widget: T) => Promise<void>;
-
+    runAll: SemanticCommand;
     /**
-     * A function to restart and run all the code hosted by the widget, which
-     * returns a promise of whether the action was performed.
+     * A semantic command to restart a kernel
      */
-    restartAndRunAll?: (widget: T) => Promise<boolean>;
+    restart: SemanticCommand;
   }
 }
diff --git a/packages/mainmenu/src/tokens.ts b/packages/mainmenu/src/tokens.ts
index 022f45cb2660..b61c39de7b4b 100644
--- a/packages/mainmenu/src/tokens.ts
+++ b/packages/mainmenu/src/tokens.ts
@@ -1,9 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IWidgetTracker, MenuFactory } from '@jupyterlab/apputils';
+import { MenuFactory } from '@jupyterlab/apputils';
 import { Token } from '@lumino/coreutils';
-import { Menu, Widget } from '@lumino/widgets';
+import { Menu } from '@lumino/widgets';
 import { IEditMenu } from './edit';
 import { IFileMenu } from './file';
 import { IHelpMenu } from './help';
@@ -13,35 +13,14 @@ import { ISettingsMenu } from './settings';
 import { ITabsMenu } from './tabs';
 import { IViewMenu } from './view';
 
-/* tslint:disable */
 /**
  * The main menu token.
  */
-export const IMainMenu = new Token<IMainMenu>('@jupyterlab/mainmenu:IMainMenu');
-/* tslint:enable */
-
-/**
- * A base interface for a consumer of one of the menu
- * semantic extension points. The IMenuExtender gives
- * a widget tracker which is checked when the menu
- * is deciding which IMenuExtender to delegate to upon
- * selection of the menu item.
- */
-export interface IMenuExtender<T extends Widget> {
-  /**
-   * A widget tracker for identifying the appropriate extender.
-   */
-  tracker: IWidgetTracker<T>;
-
-  /**
-   * An additional function that determines whether the extender
-   * is enabled. By default it is considered enabled if the application
-   * active widget is contained in the `tracker`. If this is also
-   * provided, the criterion is equivalent to
-   * `tracker.has(widget) && extender.isEnabled(widget)`
-   */
-  isEnabled?: (widget: T) => boolean;
-}
+export const IMainMenu = new Token<IMainMenu>(
+  '@jupyterlab/mainmenu:IMainMenu',
+  `A service for the main menu bar for the application.
+  Use this if you want to add your own menu items or provide implementations for standardized menu items for specific activities.`
+);
 
 /**
  * The main menu interface.
@@ -49,8 +28,12 @@ export interface IMenuExtender<T extends Widget> {
 export interface IMainMenu {
   /**
    * Add a new menu to the main menu bar.
+   *
+   * @param menu The menu to add
+   * @param update Whether to update the menu bar or not
+   * @param options Options for adding the menu
    */
-  addMenu(menu: Menu, options?: IMainMenu.IAddOptions): void;
+  addMenu(menu: Menu, update?: boolean, options?: IMainMenu.IAddOptions): void;
 
   /**
    * The application "File" menu.
diff --git a/packages/mainmenu/src/view.ts b/packages/mainmenu/src/view.ts
index e7a234371d48..53e50894ec16 100644
--- a/packages/mainmenu/src/view.ts
+++ b/packages/mainmenu/src/view.ts
@@ -2,17 +2,16 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
-import { IMenuExtender } from './tokens';
+import { SemanticCommand } from '@jupyterlab/apputils';
 
 /**
  * An interface for a View menu.
  */
 export interface IViewMenu extends IRankedMenu {
   /**
-   * A set storing IKernelUsers for the Kernel menu.
+   * Semantic commands IEditorViewer for the View menu.
    */
-  readonly editorViewers: Set<IViewMenu.IEditorViewer<Widget>>;
+  readonly editorViewers: IViewMenu.IEditorViewer;
 }
 
 /**
@@ -24,21 +23,17 @@ export class ViewMenu extends RankedMenu implements IViewMenu {
    */
   constructor(options: IRankedMenu.IOptions) {
     super(options);
-    this.editorViewers = new Set<IViewMenu.IEditorViewer<Widget>>();
+    this.editorViewers = {
+      toggleLineNumbers: new SemanticCommand(),
+      toggleMatchBrackets: new SemanticCommand(),
+      toggleWordWrap: new SemanticCommand()
+    };
   }
 
   /**
-   * A set storing IEditorViewers for the View menu.
+   * Semantic commands IEditorViewer for the View menu.
    */
-  readonly editorViewers: Set<IViewMenu.IEditorViewer<Widget>>;
-
-  /**
-   * Dispose of the resources held by the view menu.
-   */
-  dispose(): void {
-    this.editorViewers.clear();
-    super.dispose();
-  }
+  readonly editorViewers: IViewMenu.IEditorViewer;
 }
 
 /**
@@ -47,37 +42,22 @@ export class ViewMenu extends RankedMenu implements IViewMenu {
 export namespace IViewMenu {
   /**
    * Interface for a text editor viewer to register
-   * itself with the text editor extension points.
+   * itself with the text editor semantic commands.
    */
-  export interface IEditorViewer<T extends Widget> extends IMenuExtender<T> {
-    /**
-     * Whether to show line numbers in the editor.
-     */
-    toggleLineNumbers?: (widget: T) => void;
-
-    /**
-     * Whether to word-wrap the editor.
-     */
-    toggleWordWrap?: (widget: T) => void;
-
-    /**
-     * Whether to match brackets in the editor.
-     */
-    toggleMatchBrackets?: (widget: T) => void;
-
+  export interface IEditorViewer {
     /**
-     * Whether line numbers are toggled.
+     * A semantic command to show line numbers in the editor.
      */
-    lineNumbersToggled?: (widget: T) => boolean;
+    toggleLineNumbers: SemanticCommand;
 
     /**
-     * Whether word wrap is toggled.
+     * A semantic command to word-wrap the editor.
      */
-    wordWrapToggled?: (widget: T) => boolean;
+    toggleWordWrap: SemanticCommand;
 
     /**
-     * Whether match brackets is toggled.
+     * A semantic command to match brackets in the editor.
      */
-    matchBracketsToggled?: (widget: T) => boolean;
+    toggleMatchBrackets: SemanticCommand;
   }
 }
diff --git a/packages/mainmenu/test/edit.spec.ts b/packages/mainmenu/test/edit.spec.ts
index c18935220dda..b992123ba0c2 100644
--- a/packages/mainmenu/test/edit.spec.ts
+++ b/packages/mainmenu/test/edit.spec.ts
@@ -1,38 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { EditMenu, IEditMenu } from '@jupyterlab/mainmenu';
+import { EditMenu } from '@jupyterlab/mainmenu';
 import { CommandRegistry } from '@lumino/commands';
-import { Widget } from '@lumino/widgets';
-import { delegateExecute } from './util';
-
-class Wodget extends Widget {
-  state: string;
-}
 
 describe('@jupyterlab/mainmenu', () => {
   describe('EditMenu', () => {
     let commands: CommandRegistry;
     let menu: EditMenu;
-    let tracker: WidgetTracker<Wodget>;
-    let wodget: Wodget;
 
     beforeAll(() => {
       commands = new CommandRegistry();
     });
 
     beforeEach(() => {
-      wodget = new Wodget();
       menu = new EditMenu({ commands });
-      tracker = new WidgetTracker<Wodget>({ namespace: 'wodget' });
-      void tracker.add(wodget);
     });
 
     afterEach(() => {
       menu.dispose();
-      tracker.dispose();
-      wodget.dispose();
     });
 
     describe('#constructor()', () => {
@@ -42,49 +28,5 @@ describe('@jupyterlab/mainmenu', () => {
         expect(menu.title.label).toBe('');
       });
     });
-
-    describe('#undoers', () => {
-      it('should allow setting of an IUndoer', () => {
-        const undoer: IEditMenu.IUndoer<Wodget> = {
-          tracker,
-          undo: widget => {
-            widget.state = 'undo';
-            return;
-          },
-          redo: widget => {
-            widget.state = 'redo';
-            return;
-          }
-        };
-        menu.undoers.add(undoer);
-        void delegateExecute(wodget, menu.undoers, 'undo');
-        expect(wodget.state).toBe('undo');
-        void delegateExecute(wodget, menu.undoers, 'redo');
-        expect(wodget.state).toBe('redo');
-      });
-    });
-
-    describe('#clearers', () => {
-      it('should allow setting of an IClearer', () => {
-        const clearer: IEditMenu.IClearer<Wodget> = {
-          tracker,
-          clearCurrentLabel: (n: number) => 'Clear current label',
-          clearAllLabel: (n: number) => 'Clear all label',
-          clearCurrent: widget => {
-            widget.state = 'clearCurrent';
-            return;
-          },
-          clearAll: widget => {
-            widget.state = 'clearAll';
-            return;
-          }
-        };
-        menu.clearers.add(clearer);
-        void delegateExecute(wodget, menu.clearers, 'clearCurrent');
-        expect(wodget.state).toBe('clearCurrent');
-        void delegateExecute(wodget, menu.clearers, 'clearAll');
-        expect(wodget.state).toBe('clearAll');
-      });
-    });
   });
 });
diff --git a/packages/mainmenu/test/file.spec.ts b/packages/mainmenu/test/file.spec.ts
index 8a4eb5419e13..a6565bc866b3 100644
--- a/packages/mainmenu/test/file.spec.ts
+++ b/packages/mainmenu/test/file.spec.ts
@@ -1,38 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { FileMenu, IFileMenu } from '@jupyterlab/mainmenu';
+import { FileMenu } from '@jupyterlab/mainmenu';
 import { CommandRegistry } from '@lumino/commands';
-import { Widget } from '@lumino/widgets';
-import { delegateExecute } from './util';
-
-class Wodget extends Widget {
-  state: string;
-}
 
 describe('@jupyterlab/mainmenu', () => {
   describe('FileMenu', () => {
     let commands: CommandRegistry;
     let menu: FileMenu;
-    let tracker: WidgetTracker<Wodget>;
-    let wodget: Wodget;
 
     beforeAll(() => {
       commands = new CommandRegistry();
     });
 
     beforeEach(() => {
-      wodget = new Wodget();
       menu = new FileMenu({ commands });
-      tracker = new WidgetTracker<Wodget>({ namespace: 'wodget' });
-      void tracker.add(wodget);
     });
 
     afterEach(() => {
       menu.dispose();
-      tracker.dispose();
-      wodget.dispose();
     });
 
     describe('#constructor()', () => {
@@ -49,37 +35,5 @@ describe('@jupyterlab/mainmenu', () => {
         expect(menu.newMenu.title.label).toBe('');
       });
     });
-
-    describe('#cleaners', () => {
-      it('should allow setting of an ICloseAndCleaner', () => {
-        const cleaner: IFileMenu.ICloseAndCleaner<Wodget> = {
-          tracker,
-          closeAndCleanupLabel: (n: number) => 'closeAndCleanupLabel',
-          closeAndCleanup: widget => {
-            widget.state = 'clean';
-            return Promise.resolve(void 0);
-          }
-        };
-        menu.closeAndCleaners.add(cleaner);
-        void delegateExecute(wodget, menu.closeAndCleaners, 'closeAndCleanup');
-        expect(wodget.state).toBe('clean');
-      });
-    });
-
-    describe('#consoleCreators', () => {
-      it('should allow setting of an IConsoleCreator', () => {
-        const creator: IFileMenu.IConsoleCreator<Wodget> = {
-          tracker,
-          createConsoleLabel: (n: number) => 'createConsoleLabel',
-          createConsole: widget => {
-            widget.state = 'create';
-            return Promise.resolve(void 0);
-          }
-        };
-        menu.consoleCreators.add(creator);
-        void delegateExecute(wodget, menu.consoleCreators, 'createConsole');
-        expect(wodget.state).toBe('create');
-      });
-    });
   });
 });
diff --git a/packages/mainmenu/test/kernel.spec.ts b/packages/mainmenu/test/kernel.spec.ts
index 718ec58d1c4f..1e6f7cee03c0 100644
--- a/packages/mainmenu/test/kernel.spec.ts
+++ b/packages/mainmenu/test/kernel.spec.ts
@@ -1,38 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { IKernelMenu, KernelMenu } from '@jupyterlab/mainmenu';
+import { KernelMenu } from '@jupyterlab/mainmenu';
 import { CommandRegistry } from '@lumino/commands';
-import { Widget } from '@lumino/widgets';
-import { delegateExecute } from './util';
-
-class Wodget extends Widget {
-  state: string;
-}
 
 describe('@jupyterlab/mainmenu', () => {
   describe('KernelMenu', () => {
     let commands: CommandRegistry;
     let menu: KernelMenu;
-    let tracker: WidgetTracker<Wodget>;
-    let wodget: Wodget;
 
     beforeAll(() => {
       commands = new CommandRegistry();
     });
 
     beforeEach(() => {
-      wodget = new Wodget();
       menu = new KernelMenu({ commands });
-      tracker = new WidgetTracker<Wodget>({ namespace: 'wodget' });
-      void tracker.add(wodget);
     });
 
     afterEach(() => {
       menu.dispose();
-      tracker.dispose();
-      wodget.dispose();
     });
 
     describe('#constructor()', () => {
@@ -42,46 +28,5 @@ describe('@jupyterlab/mainmenu', () => {
         expect(menu.title.label).toBe('');
       });
     });
-
-    describe('#kernelUsers', () => {
-      it('should allow setting of an IKernelUser', () => {
-        const user: IKernelMenu.IKernelUser<Wodget> = {
-          tracker,
-          restartKernelAndClearLabel: (n: number) =>
-            'restartKernelAndClearLabel',
-          interruptKernel: widget => {
-            widget.state = 'interrupt';
-            return Promise.resolve(void 0);
-          },
-          restartKernel: widget => {
-            widget.state = 'restart';
-            return Promise.resolve(false);
-          },
-          restartKernelAndClear: widget => {
-            widget.state = 'restartAndClear';
-            return Promise.resolve(false);
-          },
-          changeKernel: widget => {
-            widget.state = 'change';
-            return Promise.resolve(void 0);
-          },
-          shutdownKernel: widget => {
-            widget.state = 'shutdown';
-            return Promise.resolve(void 0);
-          }
-        };
-        menu.kernelUsers.add(user);
-        void delegateExecute(wodget, menu.kernelUsers, 'interruptKernel');
-        expect(wodget.state).toBe('interrupt');
-        void delegateExecute(wodget, menu.kernelUsers, 'restartKernel');
-        expect(wodget.state).toBe('restart');
-        void delegateExecute(wodget, menu.kernelUsers, 'restartKernelAndClear');
-        expect(wodget.state).toBe('restartAndClear');
-        void delegateExecute(wodget, menu.kernelUsers, 'changeKernel');
-        expect(wodget.state).toBe('change');
-        void delegateExecute(wodget, menu.kernelUsers, 'shutdownKernel');
-        expect(wodget.state).toBe('shutdown');
-      });
-    });
   });
 });
diff --git a/packages/mainmenu/test/mainmenu.spec.ts b/packages/mainmenu/test/mainmenu.spec.ts
index 3e6246ad2324..a421b97da6e5 100644
--- a/packages/mainmenu/test/mainmenu.spec.ts
+++ b/packages/mainmenu/test/mainmenu.spec.ts
@@ -50,8 +50,8 @@ describe('@jupyterlab/mainmenu', () => {
       it('should take a rank as an option', () => {
         const menu1 = new Menu({ commands });
         const menu2 = new Menu({ commands });
-        mainMenu.addMenu(menu1, { rank: 300 });
-        mainMenu.addMenu(menu2, { rank: 200 });
+        mainMenu.addMenu(menu1, false, { rank: 300 });
+        mainMenu.addMenu(menu2, false, { rank: 200 });
         expect(
           ArrayExt.firstIndexOf(mainMenu.menus, menu1) >
             ArrayExt.firstIndexOf(mainMenu.menus, menu2)
diff --git a/packages/mainmenu/test/run.spec.ts b/packages/mainmenu/test/run.spec.ts
index d2b27f9e2a29..25f4f2d558af 100644
--- a/packages/mainmenu/test/run.spec.ts
+++ b/packages/mainmenu/test/run.spec.ts
@@ -1,38 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { IRunMenu, RunMenu } from '@jupyterlab/mainmenu';
+import { RunMenu } from '@jupyterlab/mainmenu';
 import { CommandRegistry } from '@lumino/commands';
-import { Widget } from '@lumino/widgets';
-import { delegateExecute } from './util';
-
-class Wodget extends Widget {
-  state: string;
-}
 
 describe('@jupyterlab/mainmenu', () => {
   describe('RunMenu', () => {
     let commands: CommandRegistry;
     let menu: RunMenu;
-    let tracker: WidgetTracker<Wodget>;
-    let wodget: Wodget;
 
     beforeAll(() => {
       commands = new CommandRegistry();
     });
 
     beforeEach(() => {
-      wodget = new Wodget();
       menu = new RunMenu({ commands });
-      tracker = new WidgetTracker<Wodget>({ namespace: 'wodget' });
-      void tracker.add(wodget);
     });
 
     afterEach(() => {
       menu.dispose();
-      tracker.dispose();
-      wodget.dispose();
     });
 
     describe('#constructor()', () => {
@@ -42,35 +28,5 @@ describe('@jupyterlab/mainmenu', () => {
         expect(menu.title.label).toBe('');
       });
     });
-
-    describe('#codeRunners', () => {
-      it('should allow setting of an ICodeRunner', () => {
-        const runner: IRunMenu.ICodeRunner<Wodget> = {
-          tracker,
-          runLabel: (n: number) => 'Run label',
-          runAllLabel: (n: number) => 'Run all label',
-          restartAndRunAllLabel: n => 'Restart and run all',
-          run: widget => {
-            widget.state = 'run';
-            return Promise.resolve(void 0);
-          },
-          runAll: widget => {
-            widget.state = 'runAll';
-            return Promise.resolve(void 0);
-          },
-          restartAndRunAll: widget => {
-            widget.state = 'restartAndRunAll';
-            return Promise.resolve(false);
-          }
-        };
-        menu.codeRunners.add(runner);
-        void delegateExecute(wodget, menu.codeRunners, 'run');
-        expect(wodget.state).toBe('run');
-        void delegateExecute(wodget, menu.codeRunners, 'runAll');
-        expect(wodget.state).toBe('runAll');
-        void delegateExecute(wodget, menu.codeRunners, 'restartAndRunAll');
-        expect(wodget.state).toBe('restartAndRunAll');
-      });
-    });
   });
 });
diff --git a/packages/mainmenu/test/util.ts b/packages/mainmenu/test/util.ts
deleted file mode 100644
index 6078a75f4f64..000000000000
--- a/packages/mainmenu/test/util.ts
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { IMenuExtender } from '@jupyterlab/mainmenu';
-import { Widget } from '@lumino/widgets';
-
-/**
- * Given a widget and a set containing IMenuExtenders,
- * check the tracker and return the extender, if any,
- * that holds the widget.
- */
-function findExtender<E extends IMenuExtender<Widget>>(
-  widget: Widget,
-  s: Set<E>
-): E | undefined {
-  let extender: E | undefined;
-  s.forEach(value => {
-    if (value.tracker.has(widget)) {
-      extender = value;
-    }
-  });
-  return extender;
-}
-
-/**
- * A utility function that delegates command execution
- * to an IMenuExtender.
- */
-export function delegateExecute<E extends IMenuExtender<Widget>>(
-  widget: Widget,
-  s: Set<E>,
-  executor: keyof E
-): Promise<any> {
-  const extender = findExtender(widget, s);
-  if (!extender) {
-    return Promise.resolve(void 0);
-  }
-  // Coerce the result to be a function. When Typedoc is updated to use
-  // Typescript 2.8, we can possibly use conditional types to get Typescript
-  // to recognize this is a function.
-  const f = (extender[executor] as any) as (w: Widget) => Promise<any>;
-  return f(widget);
-}
-
-/**
- * A utility function that delegates whether a command is toggled
- * for an IMenuExtender.
- */
-export function delegateToggled<E extends IMenuExtender<Widget>>(
-  widget: Widget,
-  s: Set<E>,
-  toggled: keyof E
-): boolean {
-  const extender = findExtender(widget, s);
-  if (extender && extender[toggled]) {
-    // Coerce the result to be a function. When Typedoc is updated to use
-    // Typescript 2.8, we can possibly use conditional types to get Typescript
-    // to recognize this is a function.
-    const f = (extender[toggled] as any) as (w: Widget) => boolean;
-    return f(widget);
-  }
-  return false;
-}
diff --git a/packages/mainmenu/test/view.spec.ts b/packages/mainmenu/test/view.spec.ts
index a326582312a5..f6dd2f602077 100644
--- a/packages/mainmenu/test/view.spec.ts
+++ b/packages/mainmenu/test/view.spec.ts
@@ -1,40 +1,24 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { IViewMenu, ViewMenu } from '@jupyterlab/mainmenu';
+import { ViewMenu } from '@jupyterlab/mainmenu';
 import { CommandRegistry } from '@lumino/commands';
-import { Widget } from '@lumino/widgets';
-import { delegateExecute, delegateToggled } from './util';
-
-class Wodget extends Widget {
-  wrapped: boolean = false;
-  matched: boolean = false;
-  numbered: boolean = false;
-}
 
 describe('@jupyterlab/mainmenu', () => {
   describe('ViewMenu', () => {
     let commands: CommandRegistry;
     let menu: ViewMenu;
-    let tracker: WidgetTracker<Wodget>;
-    let wodget: Wodget;
 
     beforeAll(() => {
       commands = new CommandRegistry();
     });
 
     beforeEach(() => {
-      wodget = new Wodget();
       menu = new ViewMenu({ commands });
-      tracker = new WidgetTracker<Wodget>({ namespace: 'wodget' });
-      void tracker.add(wodget);
     });
 
     afterEach(() => {
       menu.dispose();
-      tracker.dispose();
-      wodget.dispose();
     });
 
     describe('#constructor()', () => {
@@ -44,53 +28,5 @@ describe('@jupyterlab/mainmenu', () => {
         expect(menu.title.label).toBe('');
       });
     });
-
-    describe('#editorViewers', () => {
-      it('should allow setting of an IEditorViewer', () => {
-        const viewer: IViewMenu.IEditorViewer<Wodget> = {
-          tracker,
-          toggleLineNumbers: widget => {
-            widget.numbered = !widget.numbered;
-            return;
-          },
-          toggleMatchBrackets: widget => {
-            widget.matched = !widget.matched;
-            return;
-          },
-          toggleWordWrap: widget => {
-            widget.wrapped = !widget.wrapped;
-            return;
-          },
-          matchBracketsToggled: widget => widget.matched,
-          lineNumbersToggled: widget => widget.numbered,
-          wordWrapToggled: widget => widget.wrapped
-        };
-        menu.editorViewers.add(viewer);
-
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'matchBracketsToggled')
-        ).toBe(false);
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'wordWrapToggled')
-        ).toBe(false);
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'lineNumbersToggled')
-        ).toBe(false);
-
-        void delegateExecute(wodget, menu.editorViewers, 'toggleLineNumbers');
-        void delegateExecute(wodget, menu.editorViewers, 'toggleMatchBrackets');
-        void delegateExecute(wodget, menu.editorViewers, 'toggleWordWrap');
-
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'matchBracketsToggled')
-        ).toBe(true);
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'wordWrapToggled')
-        ).toBe(true);
-        expect(
-          delegateToggled(wodget, menu.editorViewers, 'lineNumbersToggled')
-        ).toBe(true);
-      });
-    });
   });
 });
diff --git a/packages/mainmenu/tsconfig.json b/packages/mainmenu/tsconfig.json
index c5b20f7280a3..d8fe0d18d3ff 100644
--- a/packages/mainmenu/tsconfig.json
+++ b/packages/mainmenu/tsconfig.json
@@ -9,9 +9,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../services"
-    },
     {
       "path": "../translation"
     },
diff --git a/packages/mainmenu/tsconfig.test.json b/packages/mainmenu/tsconfig.test.json
index c4e88a7e9f08..14724d551ee4 100644
--- a/packages/mainmenu/tsconfig.test.json
+++ b/packages/mainmenu/tsconfig.test.json
@@ -5,9 +5,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../services"
-    },
     {
       "path": "../translation"
     },
@@ -18,19 +15,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/markdownviewer-extension/package.json b/packages/markdownviewer-extension/package.json
index a869ad659f83..af2d305aeec6 100644
--- a/packages/markdownviewer-extension/package.json
+++ b/packages/markdownviewer-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/markdownviewer-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Markdown Renderer Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,18 +38,19 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/markdownviewer": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/markdownviewer": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/markdownviewer-extension/src/index.ts b/packages/markdownviewer-extension/src/index.ts
index 633029c31f57..206dde5c47f2 100644
--- a/packages/markdownviewer-extension/src/index.ts
+++ b/packages/markdownviewer-extension/src/index.ts
@@ -16,13 +16,15 @@ import {
   IMarkdownViewerTracker,
   MarkdownDocument,
   MarkdownViewer,
-  MarkdownViewerFactory
+  MarkdownViewerFactory,
+  MarkdownViewerTableOfContentsFactory
 } from '@jupyterlab/markdownviewer';
 import {
   IRenderMimeRegistry,
   markdownRendererFactory
 } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITableOfContentsRegistry } from '@jupyterlab/toc';
 import { ITranslator } from '@jupyterlab/translation';
 
 /**
@@ -44,9 +46,10 @@ const FACTORY = 'Markdown Preview';
 const plugin: JupyterFrontEndPlugin<IMarkdownViewerTracker> = {
   activate,
   id: '@jupyterlab/markdownviewer-extension:plugin',
+  description: 'Adds markdown file viewer and provides its tracker.',
   provides: IMarkdownViewerTracker,
   requires: [IRenderMimeRegistry, ITranslator],
-  optional: [ILayoutRestorer, ISettingRegistry],
+  optional: [ILayoutRestorer, ISettingRegistry, ITableOfContentsRegistry],
   autoStart: true
 };
 
@@ -58,7 +61,8 @@ function activate(
   rendermime: IRenderMimeRegistry,
   translator: ITranslator,
   restorer: ILayoutRestorer | null,
-  settingRegistry: ISettingRegistry | null
+  settingRegistry: ISettingRegistry | null,
+  tocRegistry: ITableOfContentsRegistry | null
 ): IMarkdownViewerTracker {
   const trans = translator.load('jupyterlab');
   const { commands, docRegistry } = app;
@@ -110,6 +114,7 @@ function activate(
   const factory = new MarkdownViewerFactory({
     rendermime,
     name: FACTORY,
+    label: trans.__('Markdown Preview'),
     primaryFileType: docRegistry.getFileType('markdown'),
     fileTypes: ['markdown'],
     defaultRendered: ['markdown']
@@ -173,6 +178,15 @@ function activate(
     label: trans.__('Show Markdown Editor')
   });
 
+  if (tocRegistry) {
+    tocRegistry.add(
+      new MarkdownViewerTableOfContentsFactory(
+        tracker,
+        rendermime.markdownParser
+      )
+    );
+  }
+
   return tracker;
 }
 
diff --git a/packages/markdownviewer-extension/style/index.css b/packages/markdownviewer-extension/style/index.css
index c6309f2b3f39..35dd4d602a84 100644
--- a/packages/markdownviewer-extension/style/index.css
+++ b/packages/markdownviewer-extension/style/index.css
@@ -7,4 +7,5 @@
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('~@jupyterlab/markdownviewer/style/index.css');
diff --git a/packages/markdownviewer-extension/style/index.js b/packages/markdownviewer-extension/style/index.js
index b55a1d2e3bed..08b31fbc24a3 100644
--- a/packages/markdownviewer-extension/style/index.js
+++ b/packages/markdownviewer-extension/style/index.js
@@ -7,4 +7,5 @@
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 import '@jupyterlab/markdownviewer/style/index.js';
diff --git a/packages/markdownviewer-extension/tsconfig.json b/packages/markdownviewer-extension/tsconfig.json
index b1e3961e1549..8a23d5fb1b40 100644
--- a/packages/markdownviewer-extension/tsconfig.json
+++ b/packages/markdownviewer-extension/tsconfig.json
@@ -24,6 +24,9 @@
     {
       "path": "../settingregistry"
     },
+    {
+      "path": "../toc"
+    },
     {
       "path": "../translation"
     }
diff --git a/packages/markdownviewer/package.json b/packages/markdownviewer/package.json
index 83ac44f8b0ca..1a93c8dc0e20 100644
--- a/packages/markdownviewer/package.json
+++ b/packages/markdownviewer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/markdownviewer",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Markdown viewer Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,19 +37,21 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/markdownviewer/src/index.ts b/packages/markdownviewer/src/index.ts
index 2fc087881002..7693287963e9 100644
--- a/packages/markdownviewer/src/index.ts
+++ b/packages/markdownviewer/src/index.ts
@@ -5,5 +5,6 @@
  * @module markdownviewer
  */
 
+export * from './toc';
 export * from './tokens';
 export * from './widget';
diff --git a/packages/markdownviewer/src/toc.ts b/packages/markdownviewer/src/toc.ts
new file mode 100644
index 000000000000..3873b3b62474
--- /dev/null
+++ b/packages/markdownviewer/src/toc.ts
@@ -0,0 +1,202 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { IWidgetTracker } from '@jupyterlab/apputils';
+import { IMarkdownParser } from '@jupyterlab/rendermime';
+import {
+  TableOfContents,
+  TableOfContentsFactory,
+  TableOfContentsModel,
+  TableOfContentsUtils
+} from '@jupyterlab/toc';
+import { MarkdownDocument } from './widget';
+
+/**
+ * Interface describing a Markdown viewer heading.
+ */
+export interface IMarkdownViewerHeading
+  extends TableOfContentsUtils.Markdown.IMarkdownHeading {}
+
+/**
+ * Table of content model for Markdown viewer files.
+ */
+export class MarkdownViewerTableOfContentsModel extends TableOfContentsModel<
+  IMarkdownViewerHeading,
+  MarkdownDocument
+> {
+  /**
+   * Constructor
+   *
+   * @param widget The widget to search in
+   * @param parser Markdown parser
+   * @param configuration Default model configuration
+   */
+  constructor(
+    widget: MarkdownDocument,
+    protected parser: IMarkdownParser | null,
+    configuration?: TableOfContents.IConfig
+  ) {
+    super(widget, configuration);
+  }
+
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  get documentType(): string {
+    return 'markdown-viewer';
+  }
+
+  /**
+   * Whether the model gets updated even if the table of contents panel
+   * is hidden or not.
+   */
+  protected get isAlwaysActive(): boolean {
+    return true;
+  }
+
+  /**
+   * List of configuration options supported by the model.
+   */
+  get supportedOptions(): (keyof TableOfContents.IConfig)[] {
+    return ['maximalDepth', 'numberingH1', 'numberHeaders'];
+  }
+
+  /**
+   * Produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected getHeadings(): Promise<IMarkdownViewerHeading[] | null> {
+    const content = this.widget.context.model.toString();
+    const headings = TableOfContentsUtils.filterHeadings(
+      TableOfContentsUtils.Markdown.getHeadings(content),
+      {
+        ...this.configuration,
+        // Force base number to be equal to 1
+        baseNumbering: 1
+      }
+    );
+    return Promise.resolve(headings);
+  }
+}
+
+/**
+ * Table of content model factory for Markdown viewer files.
+ */
+export class MarkdownViewerTableOfContentsFactory extends TableOfContentsFactory<MarkdownDocument> {
+  /**
+   * Constructor
+   *
+   * @param tracker Widget tracker
+   * @param parser Markdown parser
+   */
+  constructor(
+    tracker: IWidgetTracker<MarkdownDocument>,
+    protected parser: IMarkdownParser | null
+  ) {
+    super(tracker);
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  protected _createNew(
+    widget: MarkdownDocument,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContentsModel<TableOfContents.IHeading, MarkdownDocument> {
+    const model = new MarkdownViewerTableOfContentsModel(
+      widget,
+      this.parser,
+      configuration
+    );
+
+    let headingToElement = new WeakMap<
+      IMarkdownViewerHeading,
+      Element | null
+    >();
+
+    const onActiveHeadingChanged = (
+      model: TableOfContentsModel<IMarkdownViewerHeading, MarkdownDocument>,
+      heading: IMarkdownViewerHeading | null
+    ) => {
+      if (heading) {
+        const el = headingToElement.get(heading);
+
+        if (el) {
+          const widgetBox = widget.content.node.getBoundingClientRect();
+          const elementBox = el.getBoundingClientRect();
+
+          if (
+            elementBox.top > widgetBox.bottom ||
+            elementBox.bottom < widgetBox.top
+          ) {
+            el.scrollIntoView({ block: 'center' });
+          }
+        } else {
+          console.warn(
+            'Heading element not found for heading',
+            heading,
+            'in widget',
+            widget
+          );
+        }
+      }
+    };
+
+    const onHeadingsChanged = () => {
+      if (!this.parser) {
+        return;
+      }
+
+      // Clear all numbering items
+      TableOfContentsUtils.clearNumbering(widget.content.node);
+
+      // Create a new mapping
+      headingToElement = new WeakMap<IMarkdownViewerHeading, Element | null>();
+      model.headings.forEach(async heading => {
+        const elementId = await TableOfContentsUtils.Markdown.getHeadingId(
+          this.parser!,
+          heading.raw,
+          heading.level
+        );
+
+        if (!elementId) {
+          return;
+        }
+        const selector = `h${heading.level}[id="${elementId}"]`;
+
+        headingToElement.set(
+          heading,
+          TableOfContentsUtils.addPrefix(
+            widget.content.node,
+            selector,
+            heading.prefix ?? ''
+          )
+        );
+      });
+    };
+
+    void widget.content.ready.then(() => {
+      onHeadingsChanged();
+
+      widget.content.rendered.connect(onHeadingsChanged);
+      model.activeHeadingChanged.connect(onActiveHeadingChanged);
+      model.headingsChanged.connect(onHeadingsChanged);
+      widget.disposed.connect(() => {
+        widget.content.rendered.disconnect(onHeadingsChanged);
+        model.activeHeadingChanged.disconnect(onActiveHeadingChanged);
+        model.headingsChanged.disconnect(onHeadingsChanged);
+      });
+    });
+
+    return model;
+  }
+}
diff --git a/packages/markdownviewer/src/tokens.ts b/packages/markdownviewer/src/tokens.ts
index 70c205368478..339ca363ddb5 100644
--- a/packages/markdownviewer/src/tokens.ts
+++ b/packages/markdownviewer/src/tokens.ts
@@ -9,7 +9,9 @@ import { MarkdownDocument } from './widget';
  * The markdownviewer tracker token.
  */
 export const IMarkdownViewerTracker = new Token<IMarkdownViewerTracker>(
-  '@jupyterlab/markdownviewer:IMarkdownViewerTracker'
+  '@jupyterlab/markdownviewer:IMarkdownViewerTracker',
+  `A widget tracker for markdown
+  document viewers. Use this if you want to iterate over and interact with rendered markdown documents.`
 );
 
 /**
diff --git a/packages/markdownviewer/src/widget.ts b/packages/markdownviewer/src/widget.ts
index d04a5a03aba2..c522647d2c72 100644
--- a/packages/markdownviewer/src/widget.ts
+++ b/packages/markdownviewer/src/widget.ts
@@ -20,6 +20,7 @@ import {
 } from '@jupyterlab/translation';
 import { JSONObject, PromiseDelegate } from '@lumino/coreutils';
 import { Message } from '@lumino/messaging';
+import { ISignal, Signal } from '@lumino/signaling';
 import { StackedLayout, Widget } from '@lumino/widgets';
 
 /**
@@ -72,10 +73,17 @@ export class MarkdownViewer extends Widget {
     return this._ready.promise;
   }
 
+  /**
+   * Signal emitted when the content has been rendered.
+   */
+  get rendered(): ISignal<MarkdownViewer, void> {
+    return this._rendered;
+  }
+
   /**
    * Set URI fragment identifier.
    */
-  setFragment(fragment: string) {
+  setFragment(fragment: string): void {
     this._fragment = fragment;
     this.update();
   }
@@ -191,6 +199,8 @@ export class MarkdownViewer extends Widget {
       // If there is an outstanding request to render, go ahead and render
       if (this._renderRequested) {
         return this._render();
+      } else {
+        this._rendered.emit();
       }
     } catch (reason) {
       // Dispose the document if rendering fails.
@@ -214,6 +224,7 @@ export class MarkdownViewer extends Widget {
   private _ready = new PromiseDelegate<void>();
   private _isRendering = false;
   private _renderRequested = false;
+  private _rendered = new Signal<MarkdownViewer, void>(this);
 }
 
 /**
@@ -262,7 +273,7 @@ export namespace MarkdownViewer {
     lineWidth: number | null;
 
     /**
-     * Whether to hide the YALM front matter.
+     * Whether to hide the YAML front matter.
      */
     hideFrontMatter: boolean;
 
@@ -318,9 +329,10 @@ export class MarkdownViewerFactory extends ABCWidgetFactory<MarkdownDocument> {
     });
     const renderer = rendermime.createRenderer(MIMETYPE);
     const content = new MarkdownViewer({ context, renderer });
-    content.title.icon = this._fileType?.icon!;
+    content.title.icon = this._fileType?.icon;
     content.title.iconClass = this._fileType?.iconClass ?? '';
     content.title.iconLabel = this._fileType?.iconLabel ?? '';
+    content.title.caption = this.label;
     const widget = new MarkdownDocument({ content, context });
 
     return widget;
@@ -367,7 +379,7 @@ namespace Private {
   }
 
   /**
-   * Remove YALM front matter from source.
+   * Remove YAML front matter from source.
    */
   export function removeFrontMatter(source: string): string {
     const re = /^---\n[^]*?\n(---|...)\n/;
diff --git a/packages/markdownviewer/style/index.css b/packages/markdownviewer/style/index.css
index ccaf12b59f82..d97febae044c 100644
--- a/packages/markdownviewer/style/index.css
+++ b/packages/markdownviewer/style/index.css
@@ -8,5 +8,5 @@
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('./base.css');
diff --git a/packages/markdownviewer/style/index.js b/packages/markdownviewer/style/index.js
index 86d044ee9758..d5348d7638f2 100644
--- a/packages/markdownviewer/style/index.js
+++ b/packages/markdownviewer/style/index.js
@@ -8,5 +8,6 @@ import '@lumino/widgets/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 
 import './base.css';
diff --git a/packages/markdownviewer/tsconfig.json b/packages/markdownviewer/tsconfig.json
index bf09d426bd0b..b215256420cd 100644
--- a/packages/markdownviewer/tsconfig.json
+++ b/packages/markdownviewer/tsconfig.json
@@ -18,6 +18,9 @@
     {
       "path": "../rendermime"
     },
+    {
+      "path": "../toc"
+    },
     {
       "path": "../translation"
     }
diff --git a/packages/mathjax2-extension/package.json b/packages/markedparser-extension/package.json
similarity index 67%
rename from packages/mathjax2-extension/package.json
rename to packages/markedparser-extension/package.json
index f6208bd4ccff..a5b206672c94 100644
--- a/packages/mathjax2-extension/package.json
+++ b/packages/markedparser-extension/package.json
@@ -1,7 +1,7 @@
 {
-  "name": "@jupyterlab/mathjax2-extension",
-  "version": "3.6.6",
-  "description": "A JupyterLab extension providing MathJax 2 Typesetting",
+  "name": "@jupyterlab/markedparser-extension",
+  "version": "4.0.8",
+  "description": "JupyterLab - Markdown parser provider",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
     "url": "https://github.com/jupyterlab/jupyterlab/issues"
@@ -13,7 +13,8 @@
   "license": "BSD-3-Clause",
   "author": "Project Jupyter",
   "sideEffects": [
-    "style/**/*"
+    "style/**/*.css",
+    "style/index.js"
   ],
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
@@ -23,8 +24,9 @@
   },
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.css",
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -33,15 +35,16 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/mathjax2": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "marked": "^4.0.17"
   },
   "devDependencies": {
+    "@types/marked": "^4.0.3",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/markedparser-extension/src/index.ts b/packages/markedparser-extension/src/index.ts
new file mode 100644
index 000000000000..ea96c9d31cde
--- /dev/null
+++ b/packages/markedparser-extension/src/index.ts
@@ -0,0 +1,101 @@
+/* -----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+/**
+ * @packageDocumentation
+ * @module markedparser-extension
+ */
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import { IEditorLanguageRegistry } from '@jupyterlab/codemirror';
+import { IMarkdownParser } from '@jupyterlab/rendermime';
+import { marked } from 'marked';
+
+/**
+ * Create a markdown parser
+ *
+ * @param languages Editor languages
+ * @returns Markdown parser
+ */
+export function createMarkdownParser(languages: IEditorLanguageRegistry) {
+  Private.initializeMarked(languages);
+  return {
+    render: (content: string): Promise<string> =>
+      new Promise<string>((resolve, reject) => {
+        marked(content, (err: any, content: string) => {
+          if (err) {
+            reject(err);
+          } else {
+            resolve(content);
+          }
+        });
+      })
+  };
+}
+
+/**
+ * The markdown parser plugin.
+ */
+const plugin: JupyterFrontEndPlugin<IMarkdownParser> = {
+  id: '@jupyterlab/markedparser-extension:plugin',
+  description: 'Provides the Markdown parser.',
+  autoStart: true,
+  provides: IMarkdownParser,
+  requires: [IEditorLanguageRegistry],
+  activate: (app: JupyterFrontEnd, languages: IEditorLanguageRegistry) => {
+    return createMarkdownParser(languages);
+  }
+};
+
+/**
+ * Export the plugin as default.
+ */
+export default plugin;
+
+namespace Private {
+  let markedInitialized = false;
+  export function initializeMarked(languages: IEditorLanguageRegistry): void {
+    if (markedInitialized) {
+      return;
+    } else {
+      markedInitialized = true;
+    }
+
+    marked.setOptions({
+      gfm: true,
+      sanitize: false,
+      // breaks: true; We can't use GFM breaks as it causes problems with tables
+      langPrefix: `language-`,
+      highlight: (code, lang, callback) => {
+        const cb = (err: Error | null, code: string) => {
+          if (callback) {
+            callback(err, code);
+          }
+          return code;
+        };
+        if (!lang) {
+          // no language, no highlight
+          return cb(null, code);
+        }
+        const el = document.createElement('div');
+        try {
+          languages
+            .highlight(code, languages.findBest(lang), el)
+            .then(() => {
+              return cb(null, el.innerHTML);
+            })
+            .catch(reason => {
+              return cb(reason, code);
+            });
+        } catch (err) {
+          console.error(`Failed to highlight ${lang} code`, err);
+          return cb(err, code);
+        }
+      }
+    });
+  }
+}
diff --git a/packages/markedparser-extension/style/index.css b/packages/markedparser-extension/style/index.css
new file mode 100644
index 000000000000..9ad4e32f8eea
--- /dev/null
+++ b/packages/markedparser-extension/style/index.css
@@ -0,0 +1,9 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+/* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@jupyterlab/rendermime/style/index.css');
+@import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
diff --git a/packages/mathjax2/style/index.js b/packages/markedparser-extension/style/index.js
similarity index 70%
rename from packages/mathjax2/style/index.js
rename to packages/markedparser-extension/style/index.js
index ca06dffa5e2b..7dead09424e7 100644
--- a/packages/mathjax2/style/index.js
+++ b/packages/markedparser-extension/style/index.js
@@ -4,5 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-
-import './base.css';
+import '@jupyterlab/rendermime/style/index.js';
+import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
diff --git a/packages/mathjax2-extension/tsconfig.json b/packages/markedparser-extension/tsconfig.json
similarity index 78%
rename from packages/mathjax2-extension/tsconfig.json
rename to packages/markedparser-extension/tsconfig.json
index 56eab6a52340..aeca1337af0e 100644
--- a/packages/mathjax2-extension/tsconfig.json
+++ b/packages/markedparser-extension/tsconfig.json
@@ -10,10 +10,7 @@
       "path": "../application"
     },
     {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../mathjax2"
+      "path": "../codemirror"
     },
     {
       "path": "../rendermime"
diff --git a/packages/markedparser-extension/typedoc.json b/packages/markedparser-extension/typedoc.json
new file mode 100644
index 000000000000..aa64c479c3ef
--- /dev/null
+++ b/packages/markedparser-extension/typedoc.json
@@ -0,0 +1,4 @@
+{
+  "out": "../../docs/api/markedparser-extension",
+  "theme": "../../typedoc-theme"
+}
diff --git a/packages/mathjax-extension/README.md b/packages/mathjax-extension/README.md
new file mode 100644
index 000000000000..6f6bcf384688
--- /dev/null
+++ b/packages/mathjax-extension/README.md
@@ -0,0 +1,4 @@
+# mathjax-extension
+
+A JupyterLab extension for rendering math with
+[MathJax](https://github.com/mathjax/mathjax).
diff --git a/packages/mathjax2/package.json b/packages/mathjax-extension/package.json
similarity index 56%
rename from packages/mathjax2/package.json
rename to packages/mathjax-extension/package.json
index d7ea886788ab..49c8fd5e1e9d 100644
--- a/packages/mathjax2/package.json
+++ b/packages/mathjax-extension/package.json
@@ -1,7 +1,12 @@
 {
-  "name": "@jupyterlab/mathjax2",
-  "version": "3.6.6",
-  "description": "A MathJax 2 Typesetting provider for JupyterLab",
+  "name": "@jupyterlab/mathjax-extension",
+  "version": "4.0.8",
+  "description": "A JupyterLab extension providing MathJax Typesetting",
+  "keywords": [
+    "jupyter",
+    "jupyterlab",
+    "mathjax"
+  ],
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
     "url": "https://github.com/jupyterlab/jupyterlab/issues"
@@ -11,7 +16,10 @@
     "url": "https://github.com/jupyterlab/jupyterlab.git"
   },
   "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
+  "author": {
+    "name": "Project Jupyter",
+    "email": "jupyter@googlegroups.com"
+  },
   "sideEffects": [
     "style/**/*"
   ],
@@ -24,25 +32,33 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "schema/*.json",
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "docs": "typedoc src",
+    "eslint": "eslint . --ext .ts,.tsx --fix",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "mathjax-full": "^3.2.2"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
   },
+  "jupyterlab": {
+    "extension": true,
+    "schemaDir": "schema"
+  },
   "styleModule": "style/index.js"
 }
diff --git a/packages/mathjax-extension/schema/plugin.json b/packages/mathjax-extension/schema/plugin.json
new file mode 100644
index 000000000000..e3218a166667
--- /dev/null
+++ b/packages/mathjax-extension/schema/plugin.json
@@ -0,0 +1,38 @@
+{
+  "title": "MathJax Plugin",
+  "description": "MathJax math renderer for JupyterLab",
+  "jupyter.lab.menus": {
+    "context": [
+      {
+        "type": "separator",
+        "selector": ".MathJax",
+        "rank": 12
+      },
+      {
+        "command": "mathjax:clipboard",
+        "selector": ".MathJax",
+        "rank": 13
+      },
+      {
+        "command": "mathjax:scale",
+        "selector": ".MathJax",
+        "rank": 13
+      },
+      {
+        "command": "mathjax:scale",
+        "selector": ".MathJax",
+        "rank": 13,
+        "args": {
+          "scale": 1.5
+        }
+      },
+      {
+        "type": "separator",
+        "selector": ".MathJax",
+        "rank": 13
+      }
+    ]
+  },
+  "additionalProperties": false,
+  "type": "object"
+}
diff --git a/packages/mathjax-extension/src/index.ts b/packages/mathjax-extension/src/index.ts
new file mode 100644
index 000000000000..b65665f2af10
--- /dev/null
+++ b/packages/mathjax-extension/src/index.ts
@@ -0,0 +1,185 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module mathjax-extension
+ */
+
+import { PromiseDelegate } from '@lumino/coreutils';
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+
+import { ILatexTypesetter } from '@jupyterlab/rendermime';
+
+import type { MathDocument } from 'mathjax-full/js/core/MathDocument';
+
+namespace CommandIDs {
+  /**
+   * Copy raw LaTeX to clipboard.
+   */
+  export const copy = 'mathjax:clipboard';
+  /**
+   * Scale MathJax elements.
+   */
+  export const scale = 'mathjax:scale';
+}
+
+namespace CommandArgs {
+  export type scale = {
+    scale: number;
+  };
+}
+
+/**
+ * The MathJax Typesetter.
+ */
+export class MathJaxTypesetter implements ILatexTypesetter {
+  protected async _ensureInitialized() {
+    if (!this._initialized) {
+      this._mathDocument = await Private.ensureMathDocument();
+      this._initialized = true;
+    }
+  }
+
+  /**
+   * Get an instance of the MathDocument object.
+   */
+  async mathDocument(): Promise<MathDocument<any, any, any>> {
+    await this._ensureInitialized();
+    return this._mathDocument;
+  }
+
+  /**
+   * Typeset the math in a node.
+   */
+  async typeset(node: HTMLElement): Promise<void> {
+    try {
+      await this._ensureInitialized();
+    } catch (e) {
+      console.error(e);
+      return;
+    }
+
+    this._mathDocument.options.elements = [node];
+    this._mathDocument.clear().render();
+    delete this._mathDocument.options.elements;
+  }
+
+  protected _initialized: boolean = false;
+  protected _mathDocument: MathDocument<any, any, any>;
+}
+
+/**
+ * The MathJax extension.
+ */
+const mathJaxPlugin: JupyterFrontEndPlugin<ILatexTypesetter> = {
+  id: '@jupyterlab/mathjax-extension:plugin',
+  description: 'Provides the LaTeX mathematical expression interpreter.',
+  provides: ILatexTypesetter,
+  activate: (app: JupyterFrontEnd) => {
+    const typesetter = new MathJaxTypesetter();
+
+    app.commands.addCommand(CommandIDs.copy, {
+      execute: async () => {
+        const md = await typesetter.mathDocument();
+        const oJax: any = md.outputJax;
+        await navigator.clipboard.writeText(oJax.math.math);
+      },
+      label: 'MathJax Copy Latex'
+    });
+
+    app.commands.addCommand(CommandIDs.scale, {
+      execute: async (args: CommandArgs.scale) => {
+        const md = await typesetter.mathDocument();
+        const scale = args['scale'] || 1.0;
+        md.outputJax.options.scale = scale;
+        md.rerender();
+      },
+      label: args =>
+        'Mathjax Scale ' + (args['scale'] ? `x${args['scale']}` : 'Reset')
+    });
+
+    return typesetter;
+  },
+  autoStart: true
+};
+
+export default mathJaxPlugin;
+
+/**
+ * A namespace for module-private functionality.
+ */
+namespace Private {
+  let _loading: PromiseDelegate<MathDocument<any, any, any>> | null = null;
+
+  export async function ensureMathDocument(): Promise<
+    MathDocument<any, any, any>
+  > {
+    if (!_loading) {
+      _loading = new PromiseDelegate();
+
+      void import('mathjax-full/js/input/tex/require/RequireConfiguration');
+
+      const [
+        { mathjax },
+        { CHTML },
+        { TeX },
+        { TeXFont },
+        { AllPackages },
+        { SafeHandler },
+        { HTMLHandler },
+        { browserAdaptor },
+        { AssistiveMmlHandler }
+      ] = await Promise.all([
+        import('mathjax-full/js/mathjax'),
+        import('mathjax-full/js/output/chtml'),
+        import('mathjax-full/js/input/tex'),
+        import('mathjax-full/js/output/chtml/fonts/tex'),
+        import('mathjax-full/js/input/tex/AllPackages'),
+        import('mathjax-full/js/ui/safe/SafeHandler'),
+        import('mathjax-full/js/handlers/html/HTMLHandler'),
+        import('mathjax-full/js/adaptors/browserAdaptor'),
+        import('mathjax-full/js/a11y/assistive-mml')
+      ]);
+
+      mathjax.handlers.register(
+        AssistiveMmlHandler(SafeHandler(new HTMLHandler(browserAdaptor())))
+      );
+
+      class EmptyFont extends TeXFont {
+        protected static defaultFonts = {} as any;
+      }
+
+      const chtml = new CHTML({
+        // Override dynamically generated fonts in favor of our font css
+        font: new EmptyFont()
+      });
+
+      const tex = new TeX({
+        packages: AllPackages.concat('require'),
+        inlineMath: [
+          ['$', '$'],
+          ['\\(', '\\)']
+        ],
+        displayMath: [
+          ['$$', '$$'],
+          ['\\[', '\\]']
+        ],
+        processEscapes: true,
+        processEnvironments: true
+      });
+
+      const mathDocument = mathjax.document(window.document, {
+        InputJax: tex,
+        OutputJax: chtml
+      });
+
+      _loading.resolve(mathDocument);
+    }
+
+    return _loading.promise;
+  }
+}
diff --git a/packages/mathjax2/style/index.css b/packages/mathjax-extension/style/base.css
similarity index 70%
rename from packages/mathjax2/style/index.css
rename to packages/mathjax-extension/style/base.css
index e9cae08983d4..1dbc92861048 100644
--- a/packages/mathjax2/style/index.css
+++ b/packages/mathjax-extension/style/base.css
@@ -3,6 +3,9 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-/* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import './fonts.css';
 
-@import url('./base.css');
+.jp-OutputArea-output.jp-RenderedLatex .MJX-DISPLAY {
+  margin: 0;
+  text-align: left;
+}
diff --git a/packages/mathjax-extension/style/fonts.css b/packages/mathjax-extension/style/fonts.css
new file mode 100644
index 000000000000..c261b4984e7d
--- /dev/null
+++ b/packages/mathjax-extension/style/fonts.css
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+@font-face /* 0 */ {
+  font-display: swap;
+  font-family: MJXZERO;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Zero.woff')
+    format('woff');
+}
+
+@font-face /* 1 */ {
+  font-display: swap;
+  font-family: MJXTEX;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Main-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 2 */ {
+  font-display: swap;
+  font-family: MJXTEX-B;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Main-Bold.woff')
+    format('woff');
+}
+
+@font-face /* 3 */ {
+  font-display: swap;
+  font-family: MJXTEX-I;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Math-Italic.woff')
+    format('woff');
+}
+
+@font-face /* 4 */ {
+  font-display: swap;
+  font-family: MJXTEX-MI;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Main-Italic.woff')
+    format('woff');
+}
+
+@font-face /* 5 */ {
+  font-display: swap;
+  font-family: MJXTEX-BI;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Math-BoldItalic.woff')
+    format('woff');
+}
+
+@font-face /* 6 */ {
+  font-display: swap;
+  font-family: 'MJXTEX-S1';
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Size1-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 7 */ {
+  font-display: swap;
+  font-family: 'MJXTEX-S2';
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Size2-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 8 */ {
+  font-display: swap;
+  font-family: 'MJXTEX-S3';
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Size3-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 9 */ {
+  font-display: swap;
+  font-family: 'MJXTEX-S4';
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Size4-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 10 */ {
+  font-display: swap;
+  font-family: MJXTEX-A;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_AMS-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 11 */ {
+  font-display: swap;
+  font-family: MJXTEX-C;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Calligraphic-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 12 */ {
+  font-display: swap;
+  font-family: MJXTEX-CB;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Calligraphic-Bold.woff')
+    format('woff');
+}
+
+@font-face /* 13 */ {
+  font-display: swap;
+  font-family: MJXTEX-FR;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Fraktur-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 14 */ {
+  font-display: swap;
+  font-family: MJXTEX-FRB;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Fraktur-Bold.woff')
+    format('woff');
+}
+
+@font-face /* 15 */ {
+  font-display: swap;
+  font-family: MJXTEX-SS;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_SansSerif-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 16 */ {
+  font-display: swap;
+  font-family: MJXTEX-SSB;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_SansSerif-Bold.woff')
+    format('woff');
+}
+
+@font-face /* 17 */ {
+  font-family: MJXTEX-SSI;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_SansSerif-Italic.woff')
+    format('woff');
+}
+
+@font-face /* 18 */ {
+  font-display: swap;
+  font-family: MJXTEX-SC;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Script-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 19 */ {
+  font-display: swap;
+  font-family: MJXTEX-T;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Typewriter-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 20 */ {
+  font-display: swap;
+  font-family: MJXTEX-V;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Vector-Regular.woff')
+    format('woff');
+}
+
+@font-face /* 21 */ {
+  font-display: swap;
+  font-family: MJXTEX-VB;
+  src: url('~mathjax-full/es5/output/chtml/fonts/woff-v2/MathJax_Vector-Bold.woff')
+    format('woff');
+}
diff --git a/packages/mathjax2-extension/style/index.css b/packages/mathjax-extension/style/index.css
similarity index 89%
rename from packages/mathjax2-extension/style/index.css
rename to packages/mathjax-extension/style/index.css
index 8c6cac35f024..64c8dc9a1c53 100644
--- a/packages/mathjax2-extension/style/index.css
+++ b/packages/mathjax-extension/style/index.css
@@ -6,4 +6,4 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
-@import url('~@jupyterlab/mathjax2/style/index.css');
+@import url('./base.css');
diff --git a/packages/mathjax2-extension/style/index.js b/packages/mathjax-extension/style/index.js
similarity index 90%
rename from packages/mathjax2-extension/style/index.js
rename to packages/mathjax-extension/style/index.js
index 26d224968219..12945af7b08d 100644
--- a/packages/mathjax2-extension/style/index.js
+++ b/packages/mathjax-extension/style/index.js
@@ -6,4 +6,5 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/application/style/index.js';
-import '@jupyterlab/mathjax2/style/index.js';
+
+import './base.css';
diff --git a/packages/mathjax2/tsconfig.json b/packages/mathjax-extension/tsconfig.json
similarity index 54%
rename from packages/mathjax2/tsconfig.json
rename to packages/mathjax-extension/tsconfig.json
index 7686b51cf313..015b42e3d28a 100644
--- a/packages/mathjax2/tsconfig.json
+++ b/packages/mathjax-extension/tsconfig.json
@@ -2,12 +2,16 @@
   "extends": "../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
-    "rootDir": "src"
+    "rootDir": "src",
+    "skipLibCheck": true
   },
   "include": ["src/*"],
   "references": [
     {
-      "path": "../rendermime-interfaces"
+      "path": "../application"
+    },
+    {
+      "path": "../rendermime"
     }
   ]
 }
diff --git a/packages/mathjax2-extension/src/index.ts b/packages/mathjax2-extension/src/index.ts
deleted file mode 100644
index 25090d87492b..000000000000
--- a/packages/mathjax2-extension/src/index.ts
+++ /dev/null
@@ -1,42 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-/**
- * @packageDocumentation
- * @module mathjax2-extension
- */
-
-import { JupyterFrontEndPlugin } from '@jupyterlab/application';
-import { PageConfig } from '@jupyterlab/coreutils';
-import { MathJaxTypesetter } from '@jupyterlab/mathjax2';
-import { ILatexTypesetter } from '@jupyterlab/rendermime';
-
-/**
- * The MathJax latexTypesetter plugin.
- */
-const plugin: JupyterFrontEndPlugin<ILatexTypesetter> = {
-  id: '@jupyterlab/mathjax2-extension:plugin',
-  autoStart: true,
-  provides: ILatexTypesetter,
-  activate: () => {
-    const [urlParam, configParam] = ['fullMathjaxUrl', 'mathjaxConfig'];
-    const url = PageConfig.getOption(urlParam);
-    const config = PageConfig.getOption(configParam);
-
-    if (!url) {
-      const message =
-        `${plugin.id} uses '${urlParam}' and '${configParam}' in PageConfig ` +
-        `to operate but '${urlParam}' was not found.`;
-
-      throw new Error(message);
-    }
-
-    return new MathJaxTypesetter({ url, config });
-  }
-};
-
-/**
- * Export the plugin as default.
- */
-export default plugin;
diff --git a/packages/mathjax2-extension/typedoc.json b/packages/mathjax2-extension/typedoc.json
deleted file mode 100644
index 3b617d0db4c4..000000000000
--- a/packages/mathjax2-extension/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/mathjax2-extension",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/mathjax2/src/index.ts b/packages/mathjax2/src/index.ts
deleted file mode 100644
index 5850b93536fd..000000000000
--- a/packages/mathjax2/src/index.ts
+++ /dev/null
@@ -1,146 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-/**
- * @packageDocumentation
- * @module mathjax2
- */
-
-import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
-import { PromiseDelegate } from '@lumino/coreutils';
-
-// Stub for window MathJax.
-declare let MathJax: any;
-
-/**
- * The MathJax Typesetter.
- */
-export class MathJaxTypesetter implements IRenderMime.ILatexTypesetter {
-  /**
-   * Create a new MathJax typesetter.
-   */
-  constructor(options: MathJaxTypesetter.IOptions) {
-    this._url = options.url;
-    this._config = options.config;
-  }
-
-  /**
-   * Typeset the math in a node.
-   *
-   * #### Notes
-   * MathJax schedules the typesetting asynchronously,
-   * but there are not currently any callbacks or Promises
-   * firing when it is done.
-   */
-  typeset(node: HTMLElement): void {
-    if (!this._initialized) {
-      this._init();
-    }
-    void this._initPromise.promise.then(() => {
-      MathJax.Hub.Queue(['Typeset', MathJax.Hub, node]);
-      try {
-        MathJax.Hub.Queue(
-          ['Require', MathJax.Ajax, '[MathJax]/extensions/TeX/AMSmath.js'],
-          () => {
-            MathJax.InputJax.TeX.resetEquationNumbers();
-          }
-        );
-      } catch (e) {
-        console.error('Error queueing resetEquationNumbers:', e);
-      }
-    });
-  }
-
-  /**
-   * Initialize MathJax.
-   */
-  private _init(): void {
-    const head = document.getElementsByTagName('head')[0];
-    const script = document.createElement('script');
-    script.type = 'text/javascript';
-    script.src = `${this._url}?config=${this._config}&amp;delayStartupUntil=configured`;
-    script.charset = 'utf-8';
-    head.appendChild(script);
-    script.addEventListener('load', () => {
-      this._onLoad();
-    });
-    this._initialized = true;
-  }
-
-  /**
-   * Handle MathJax loading.
-   */
-  private _onLoad(): void {
-    MathJax.Hub.Config({
-      tex2jax: {
-        inlineMath: [
-          ['$', '$'],
-          ['\\(', '\\)']
-        ],
-        displayMath: [
-          ['$$', '$$'],
-          ['\\[', '\\]']
-        ],
-        processEscapes: true,
-        processEnvironments: true
-      },
-      // Center justify equations in code and markdown cells. Elsewhere
-      // we use CSS to left justify single line equations in code cells.
-      displayAlign: 'center',
-      CommonHTML: {
-        linebreaks: { automatic: true }
-      },
-      'HTML-CSS': {
-        availableFonts: [],
-        imageFont: null,
-        preferredFont: null,
-        webFont: 'STIX-Web',
-        styles: { '.MathJax_Display': { margin: 0 } },
-        linebreaks: { automatic: true }
-      },
-      skipStartupTypeset: true,
-      messageStyle: 'none'
-    });
-
-    MathJax.Hub.Register.StartupHook('End Config', () => {
-      // Disable `:hover span` styles which cause performance issues in Chromium browsers
-      // c-f https://github.com/jupyterlab/jupyterlab/issues/9757
-      // Note that we cannot overwrite them in config earlier due to how `CombineConfig`
-      // is implemented in MathJax 2 (it does not allow removing styles, just expanding).
-      delete MathJax.Hub?.config?.MathEvents?.styles[
-        '.MathJax_Hover_Arrow:hover span'
-      ];
-      delete MathJax.Hub?.config?.MathMenu?.styles[
-        '.MathJax_MenuClose:hover span'
-      ];
-    });
-    MathJax.Hub.Configured();
-    this._initPromise.resolve(void 0);
-  }
-
-  private _initPromise = new PromiseDelegate<void>();
-  private _initialized = false;
-  private _url: string;
-  private _config: string;
-}
-
-/**
- * Namespace for MathJaxTypesetter.
- */
-export namespace MathJaxTypesetter {
-  /**
-   * MathJaxTypesetter constructor options.
-   */
-  export interface IOptions {
-    /**
-     * The url to load MathJax from.
-     */
-    url: string;
-
-    /**
-     * A configuration string to compose into the MathJax URL.
-     */
-    config: string;
-  }
-}
diff --git a/packages/mathjax2/style/base.css b/packages/mathjax2/style/base.css
deleted file mode 100644
index 8154200d36b4..000000000000
--- a/packages/mathjax2/style/base.css
+++ /dev/null
@@ -1,15 +0,0 @@
-/*-----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-/* Left-justify the MathJax preview in cell outputs. */
-.jp-OutputArea-output.jp-RenderedLatex .MathJax_Preview .MJXp-display {
-  padding: var(--jp-code-padding);
-  text-align: left !important;
-}
-
-/* Left-justify the MathJax display equation in cell outputs. */
-.jp-OutputArea-output.jp-RenderedLatex .MathJax_Display {
-  text-align: left !important;
-}
diff --git a/packages/mathjax2/typedoc.json b/packages/mathjax2/typedoc.json
deleted file mode 100644
index 919073b225fc..000000000000
--- a/packages/mathjax2/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/mathjax2",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/metadataform-extension/package.json b/packages/metadataform-extension/package.json
new file mode 100644
index 000000000000..b7d1f881086f
--- /dev/null
+++ b/packages/metadataform-extension/package.json
@@ -0,0 +1,62 @@
+{
+  "name": "@jupyterlab/metadataform-extension",
+  "version": "4.0.8",
+  "description": "A helper to build form for metadata",
+  "keywords": [
+    "jupyter",
+    "jupyterlab",
+    "jupyterlab-extension"
+  ],
+  "homepage": "https://github.com/jupyterlab/jupyterlab",
+  "bugs": {
+    "url": "https://github.com/jupyterlab/jupyterlab/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jupyterlab/jupyterlab.git"
+  },
+  "license": "BSD-3-Clause",
+  "author": "Project Jupyter",
+  "sideEffects": [
+    "style/**/*"
+  ],
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "style": "style/index.css",
+  "directories": {
+    "lib": "lib/"
+  },
+  "files": [
+    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
+    "schema/*.json",
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
+  ],
+  "scripts": {
+    "build": "tsc",
+    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
+    "watch": "tsc -w --listEmittedFiles"
+  },
+  "dependencies": {
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/metadataform": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2"
+  },
+  "devDependencies": {
+    "rimraf": "~3.0.0",
+    "typescript": "~5.0.4"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "jupyterlab": {
+    "extension": true,
+    "schemaDir": "schema"
+  },
+  "styleModule": "style/index.js"
+}
diff --git a/packages/metadataform-extension/schema/metadataforms.json b/packages/metadataform-extension/schema/metadataforms.json
new file mode 100644
index 000000000000..f4b12b147dac
--- /dev/null
+++ b/packages/metadataform-extension/schema/metadataforms.json
@@ -0,0 +1,100 @@
+{
+  "type": "object",
+  "title": "Metadata Form",
+  "description": "Settings of the metadata form extension.",
+  "jupyter.lab.metadataforms": [],
+  "jupyter.lab.transform": true,
+  "additionalProperties": false,
+  "properties": {
+    "metadataforms": {
+      "items": {
+        "$ref": "#/definitions/metadataForm"
+      },
+      "type": "array",
+      "default": []
+    }
+  },
+  "definitions": {
+    "metadataForm": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "description": "The section ID"
+        },
+        "metadataSchema": {
+          "type": "object",
+          "items": {
+            "$ref": "#/definitions/metadataSchema"
+          }
+        },
+        "uiSchema": {
+          "type": "object"
+        },
+        "metadataOptions": {
+          "type": "object",
+          "items": {
+            "$ref": "#/definitions/metadataOptions"
+          }
+        },
+        "label": {
+          "type": "string",
+          "description": "The section label"
+        },
+        "rank": {
+          "type": "integer",
+          "description": "The rank of the section in the right panel"
+        },
+        "showModified": {
+          "type": "boolean",
+          "description": "Whether to show that values have been modified from defaults"
+        }
+      },
+      "required": ["id", "metadataSchema"]
+    },
+    "metadataSchema": {
+      "properties": {
+        "properties": {
+          "type": "object",
+          "description": "The property set up by extension",
+          "properties": {
+            "title": {
+              "type": "string"
+            },
+            "description": {
+              "type": "string"
+            },
+            "type": {
+              "type": "string"
+            }
+          }
+        }
+      },
+      "type": "object",
+      "required": ["properties"]
+    },
+    "metadataOptions": {
+      "properties": {
+        "customRenderer": {
+          "type": "string"
+        },
+        "metadataLevel": {
+          "type": "string",
+          "enum": ["cell", "notebook"],
+          "default": "cell"
+        },
+        "cellTypes": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": ["code", "markdown", "raw"]
+          }
+        },
+        "writeDefault": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    }
+  }
+}
diff --git a/packages/metadataform-extension/src/index.ts b/packages/metadataform-extension/src/index.ts
new file mode 100644
index 000000000000..06c846711e1d
--- /dev/null
+++ b/packages/metadataform-extension/src/index.ts
@@ -0,0 +1,299 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module metadataform-extension
+ */
+
+import {
+  JupyterFrontEnd,
+  JupyterFrontEndPlugin
+} from '@jupyterlab/application';
+import { INotebookTools } from '@jupyterlab/notebook';
+import { ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator } from '@jupyterlab/translation';
+import { IFormRendererRegistry } from '@jupyterlab/ui-components';
+import { JSONExt, PartialJSONArray } from '@lumino/coreutils';
+
+import {
+  IMetadataFormProvider,
+  MetadataForm,
+  MetadataFormProvider,
+  MetadataFormWidget
+} from '@jupyterlab/metadataform';
+
+const PLUGIN_ID = '@jupyterlab/metadataform-extension:metadataforms';
+
+namespace Private {
+  export async function loadSettingsMetadataForm(
+    app: JupyterFrontEnd,
+    registry: ISettingRegistry,
+    notebookTools: INotebookTools,
+    translator: ITranslator,
+    formComponentRegistry: IFormRendererRegistry
+  ): Promise<IMetadataFormProvider> {
+    let canonical: ISettingRegistry.ISchema | null;
+    let loaded: { [name: string]: ISettingRegistry.IMetadataForm[] } = {};
+
+    /**
+     * Populate the plugin's schema defaults.
+     */
+    function populate(schema: ISettingRegistry.ISchema) {
+      loaded = {};
+      schema.properties!.metadataforms.default = Object.keys(registry.plugins)
+        .map(plugin => {
+          const metadataForms =
+            registry.plugins[plugin]!.schema['jupyter.lab.metadataforms'] ?? [];
+
+          metadataForms.forEach(metadataForm => {
+            metadataForm._origin = plugin;
+          });
+          loaded[plugin] = metadataForms;
+          return metadataForms;
+        })
+        .concat([schema['jupyter.lab.metadataforms'] as any[]])
+        .reduce((acc, val) => {
+          // If a MetadataForm with the same ID already exists,
+          // the metadataKeys will be concatenated to this MetadataForm's metadataKeys .
+          // Otherwise, the whole MetadataForm will be pushed as a new form.
+          val.forEach(value => {
+            const metadataForm = acc.find(addedValue => {
+              return addedValue.id === value.id;
+            });
+            if (metadataForm) {
+              // TODO do insertion of metadataSchema properties in a generic way.
+              // Currently this only support 'properties', 'allOf' and 'required'.
+              //  - add or replace entries if it is an object.
+              //  - concat if it is an array.
+              //  - replace if it is a primitive ?
+
+              // Includes new metadataKey in the existing metadataSchema.
+              // Overwrites if the metadataKey already exists.
+              for (let [metadataKey, properties] of Object.entries(
+                value.metadataSchema.properties
+              )) {
+                metadataForm.metadataSchema.properties[metadataKey] =
+                  properties;
+              }
+
+              // Includes required fields.
+              if (value.metadataSchema.required) {
+                if (!metadataForm.metadataSchema.required) {
+                  metadataForm.metadataSchema.required =
+                    value.metadataSchema.required;
+                } else {
+                  metadataForm.metadataSchema.required.concat(
+                    value.metadataSchema.required
+                  );
+                }
+              }
+
+              // Includes allOf array in the existing metadataSchema.
+              if (value.metadataSchema.allOf) {
+                if (!metadataForm.metadataSchema.allOf) {
+                  metadataForm.metadataSchema.allOf =
+                    value.metadataSchema.allOf;
+                } else {
+                  metadataForm.metadataSchema.allOf.concat(
+                    value.metadataSchema.allOf
+                  );
+                }
+              }
+
+              // Includes uiSchema in the existing uiSchema.
+              // Overwrites if the uiSchema already exists for that metadataKey.
+              if (value.uiSchema) {
+                if (!metadataForm.uiSchema) metadataForm.uiSchema = {};
+                for (let [metadataKey, ui] of Object.entries(value.uiSchema)) {
+                  metadataForm.uiSchema[metadataKey] = ui;
+                }
+              }
+
+              // Includes metadataOptions in the existing uiSchema.
+              // Overwrites if options already exists for that metadataKey.
+              if (value.metadataOptions) {
+                if (!metadataForm.metadataOptions)
+                  metadataForm.metadataOptions = {};
+                for (let [metadataKey, options] of Object.entries(
+                  value.metadataOptions
+                )) {
+                  metadataForm.metadataOptions[metadataKey] = options;
+                }
+              }
+            } else {
+              acc.push(value);
+            }
+          });
+          return acc;
+        }, []); // flatten one level;
+    }
+
+    // Transform the plugin object to return different schema than the default.
+    registry.transform(PLUGIN_ID, {
+      compose: plugin => {
+        // Only override the canonical schema the first time.
+        if (!canonical) {
+          canonical = JSONExt.deepCopy(plugin.schema);
+          populate(canonical);
+        }
+        const defaults =
+          (canonical.properties?.metadataforms?.default as PartialJSONArray) ??
+          [];
+        const user = {
+          metadataforms: plugin.data.user.metadataforms ?? []
+        };
+        const composite = {
+          metadataforms: defaults.concat(user.metadataforms)
+        };
+
+        plugin.data = { composite, user };
+        return plugin;
+      },
+      fetch: plugin => {
+        // Only override the canonical schema the first time.
+        if (!canonical) {
+          canonical = JSONExt.deepCopy(plugin.schema);
+          populate(canonical);
+        }
+
+        return {
+          data: plugin.data,
+          id: plugin.id,
+          raw: plugin.raw,
+          schema: canonical,
+          version: plugin.version
+        };
+      }
+    });
+
+    // Repopulate the canonical variable after the setting registry has
+    // preloaded all initial plugins.
+    canonical = null;
+
+    const settings = await registry.load(PLUGIN_ID);
+    const metadataForms: IMetadataFormProvider = new MetadataFormProvider();
+
+    // Creates all the forms from extensions settings.
+    for (let schema of settings.composite
+      .metadataforms as ISettingRegistry.IMetadataForm[]) {
+      let metaInformation: MetadataForm.IMetaInformation = {};
+      let metadataSchema: ISettingRegistry.IMetadataSchema = JSONExt.deepCopy(
+        schema.metadataSchema
+      );
+      let uiSchema: MetadataForm.IUiSchema = {};
+
+      if (schema.uiSchema) {
+        uiSchema = JSONExt.deepCopy(schema.uiSchema) as MetadataForm.IUiSchema;
+      }
+
+      for (let [metadataKey, properties] of Object.entries(
+        metadataSchema.properties
+      )) {
+        if (properties.default) {
+          if (!metaInformation[metadataKey]) metaInformation[metadataKey] = {};
+          metaInformation[metadataKey].default = properties.default;
+        }
+      }
+
+      if (schema.metadataOptions) {
+        for (let [metadataKey, options] of Object.entries(
+          schema.metadataOptions
+        )) {
+          // Optionally links key to cell type.
+          if (options.cellTypes) {
+            if (!metaInformation[metadataKey])
+              metaInformation[metadataKey] = {};
+            metaInformation[metadataKey].cellTypes = options.cellTypes;
+          }
+
+          // Optionally links key to metadata level.
+          if (options.metadataLevel) {
+            if (!metaInformation[metadataKey])
+              metaInformation[metadataKey] = {};
+            metaInformation[metadataKey].level = options.metadataLevel;
+          }
+
+          // Optionally set the writeDefault flag.
+          if (options.writeDefault !== undefined) {
+            if (!metaInformation[metadataKey])
+              metaInformation[metadataKey] = {};
+            metaInformation[metadataKey].writeDefault = options.writeDefault;
+          }
+
+          // Optionally links key to a custom widget.
+          if (options.customRenderer) {
+            const component = formComponentRegistry.getRenderer(
+              options.customRenderer as string
+            );
+
+            // If renderer is defined (custom widget has been registered), set it as used widget.
+            if (component !== undefined) {
+              if (!uiSchema[metadataKey]) uiSchema[metadataKey] = {};
+              if (component.fieldRenderer) {
+                uiSchema[metadataKey]['ui:field'] = component.fieldRenderer;
+              } else {
+                uiSchema[metadataKey]['ui:widget'] = component.widgetRenderer;
+              }
+            }
+          }
+        }
+      }
+
+      // Adds a section to notebookTools.
+      notebookTools.addSection({
+        sectionName: schema.id,
+        rank: schema.rank,
+        label: schema.label ?? schema.id
+      });
+
+      // Creates the tool.
+      const tool = new MetadataFormWidget({
+        metadataSchema: metadataSchema,
+        metaInformation: metaInformation,
+        uiSchema: uiSchema,
+        pluginId: schema._origin,
+        translator: translator,
+        showModified: schema.showModified
+      });
+
+      // Adds the form to the section.
+      notebookTools.addItem({ section: schema.id, tool: tool });
+
+      metadataForms.add(schema.id, tool);
+    }
+    return metadataForms;
+  }
+}
+
+/**
+ * The metadata form plugin.
+ */
+const metadataForm: JupyterFrontEndPlugin<IMetadataFormProvider> = {
+  id: PLUGIN_ID,
+  description: 'Provides the metadata form registry.',
+  autoStart: true,
+  requires: [
+    INotebookTools,
+    ITranslator,
+    IFormRendererRegistry,
+    ISettingRegistry
+  ],
+  provides: IMetadataFormProvider,
+  activate: async (
+    app: JupyterFrontEnd,
+    notebookTools: INotebookTools,
+    translator: ITranslator,
+    componentsRegistry: IFormRendererRegistry,
+    settings: ISettingRegistry
+  ): Promise<IMetadataFormProvider> => {
+    return await Private.loadSettingsMetadataForm(
+      app,
+      settings,
+      notebookTools,
+      translator,
+      componentsRegistry
+    );
+  }
+};
+
+export default metadataForm;
diff --git a/packages/vdom-extension/style/index.css b/packages/metadataform-extension/style/index.css
similarity index 70%
rename from packages/vdom-extension/style/index.css
rename to packages/metadataform-extension/style/index.css
index 55a3aa6073c3..82bc597dfc19 100644
--- a/packages/vdom-extension/style/index.css
+++ b/packages/metadataform-extension/style/index.css
@@ -5,9 +5,6 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
-@import url('~@jupyterlab/rendermime/style/index.css');
-@import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
-@import url('~@jupyterlab/vdom/style/index.css');
+@import url('~@jupyterlab/metadataform/style/index.css');
diff --git a/packages/vdom-extension/style/index.js b/packages/metadataform-extension/style/index.js
similarity index 72%
rename from packages/vdom-extension/style/index.js
rename to packages/metadataform-extension/style/index.js
index eb410b7b17c9..a9a2c81ad7cf 100644
--- a/packages/vdom-extension/style/index.js
+++ b/packages/metadataform-extension/style/index.js
@@ -5,9 +5,6 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
-import '@jupyterlab/rendermime/style/index.js';
-import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
 import '@jupyterlab/notebook/style/index.js';
-import '@jupyterlab/vdom/style/index.js';
+import '@jupyterlab/metadataform/style/index.js';
diff --git a/packages/vdom-extension/tsconfig.json b/packages/metadataform-extension/tsconfig.json
similarity index 72%
rename from packages/vdom-extension/tsconfig.json
rename to packages/metadataform-extension/tsconfig.json
index 4488938de3ce..5d603634cf29 100644
--- a/packages/vdom-extension/tsconfig.json
+++ b/packages/metadataform-extension/tsconfig.json
@@ -10,22 +10,19 @@
       "path": "../application"
     },
     {
-      "path": "../apputils"
-    },
-    {
-      "path": "../docregistry"
+      "path": "../metadataform"
     },
     {
       "path": "../notebook"
     },
     {
-      "path": "../rendermime"
+      "path": "../settingregistry"
     },
     {
-      "path": "../ui-components"
+      "path": "../translation"
     },
     {
-      "path": "../vdom"
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/metadataform/babel.config.js b/packages/metadataform/babel.config.js
new file mode 100644
index 000000000000..eb2198a956e7
--- /dev/null
+++ b/packages/metadataform/babel.config.js
@@ -0,0 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/metadataform/jest.config.js b/packages/metadataform/jest.config.js
new file mode 100644
index 000000000000..cd234acbbdc0
--- /dev/null
+++ b/packages/metadataform/jest.config.js
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
+module.exports = func(__dirname);
diff --git a/packages/metadataform/package.json b/packages/metadataform/package.json
new file mode 100644
index 000000000000..8c1593d136ad
--- /dev/null
+++ b/packages/metadataform/package.json
@@ -0,0 +1,75 @@
+{
+  "name": "@jupyterlab/metadataform",
+  "version": "4.0.8",
+  "description": "A helper to build form for metadata",
+  "keywords": [
+    "jupyter",
+    "jupyterlab"
+  ],
+  "homepage": "https://github.com/jupyterlab/jupyterlab",
+  "bugs": {
+    "url": "https://github.com/jupyterlab/jupyterlab/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jupyterlab/jupyterlab.git"
+  },
+  "license": "BSD-3-Clause",
+  "author": "Project Jupyter",
+  "sideEffects": [
+    "style/**/*"
+  ],
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "style": "style/index.css",
+  "directories": {
+    "lib": "lib/"
+  },
+  "files": [
+    "lib/*.d.ts",
+    "lib/*.js.map",
+    "lib/*.js",
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
+  ],
+  "scripts": {
+    "build": "tsc -b",
+    "build:test": "tsc --build tsconfig.test.json",
+    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
+    "test": "jest",
+    "test:cov": "jest --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
+    "test:watch": "jest --runInBand --watch",
+    "watch": "tsc -w --listEmittedFiles"
+  },
+  "dependencies": {
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "@rjsf/core": "^5.1.0",
+    "@rjsf/validator-ajv8": "^5.1.0",
+    "json-schema": "^0.4.0",
+    "react": "^18.2.0"
+  },
+  "devDependencies": {
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react": "^18.0.26",
+    "jest": "^29.2.0",
+    "rimraf": "~3.0.0",
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "styleModule": "style/index.js"
+}
diff --git a/packages/metadataform/src/form.tsx b/packages/metadataform/src/form.tsx
new file mode 100644
index 000000000000..5a381f106888
--- /dev/null
+++ b/packages/metadataform/src/form.tsx
@@ -0,0 +1,60 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module metadataform
+ */
+
+import { ReactWidget } from '@jupyterlab/apputils';
+import { FormComponent } from '@jupyterlab/ui-components';
+import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
+import { IChangeEvent } from '@rjsf/core';
+import validatorAjv8 from '@rjsf/validator-ajv8';
+import { JSONSchema7 } from 'json-schema';
+import React from 'react';
+
+import { MetadataForm } from './token';
+
+/**
+ * A ReactWidget with the form itself.
+ */
+export class FormWidget extends ReactWidget {
+  /**
+   * Constructs a new FormWidget.
+   */
+  constructor(props: MetadataForm.IProps) {
+    super();
+    this.addClass('jp-FormWidget');
+    this._props = props;
+  }
+
+  /**
+   * Render the form.
+   * @returns - The rendered form
+   */
+  render(): JSX.Element {
+    const formContext = {
+      defaultFormData: this._props.settings.default(),
+      updateMetadata: this._props.metadataFormWidget.updateMetadata
+    };
+    return (
+      <FormComponent
+        validator={validatorAjv8}
+        schema={this._props.properties as JSONSchema7}
+        formData={this._props.formData as Record<string, any>}
+        formContext={formContext}
+        uiSchema={this._props.uiSchema}
+        liveValidate
+        idPrefix={`jp-MetadataForm-${this._props.pluginId}`}
+        onChange={(e: IChangeEvent<ReadonlyPartialJSONObject>) => {
+          this._props.metadataFormWidget.updateMetadata(e.formData || {});
+        }}
+        compact={true}
+        showModifiedFromDefault={this._props.showModified}
+        translator={this._props.translator}
+      />
+    );
+  }
+
+  private _props: MetadataForm.IProps;
+}
diff --git a/packages/metadataform/src/index.ts b/packages/metadataform/src/index.ts
new file mode 100644
index 000000000000..c7d580238d56
--- /dev/null
+++ b/packages/metadataform/src/index.ts
@@ -0,0 +1,11 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module metadataform
+ */
+
+export * from './form';
+export * from './metadataform';
+export * from './metadataformProvider';
+export * from './token';
diff --git a/packages/metadataform/src/metadataform.ts b/packages/metadataform/src/metadataform.ts
new file mode 100644
index 000000000000..199c0e9c240e
--- /dev/null
+++ b/packages/metadataform/src/metadataform.ts
@@ -0,0 +1,486 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module metadataform
+ */
+
+import { NotebookTools } from '@jupyterlab/notebook';
+import { BaseSettings } from '@jupyterlab/settingregistry';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+import {
+  JSONExt,
+  JSONObject,
+  JSONValue,
+  PartialJSONObject,
+  PartialJSONValue,
+  ReadonlyPartialJSONObject,
+  ReadonlyPartialJSONValue
+} from '@lumino/coreutils';
+import { Message } from '@lumino/messaging';
+import { SingletonLayout, Widget } from '@lumino/widgets';
+
+import { MetadataForm } from './token';
+import { FormWidget } from './form';
+
+/**
+ * A class that create a metadata form widget
+ */
+export class MetadataFormWidget
+  extends NotebookTools.Tool
+  implements MetadataForm.IMetadataForm
+{
+  /**
+   * Construct an empty widget.
+   */
+  constructor(options: MetadataForm.IOptions) {
+    super();
+    this._metadataSchema = options.metadataSchema;
+    this._metaInformation = options.metaInformation;
+    this._uiSchema = options.uiSchema || {};
+    this._pluginId = options.pluginId;
+    this._showModified = options.showModified || false;
+    this.translator = options.translator || nullTranslator;
+    this._trans = this.translator.load('jupyterlab');
+    this._updatingMetadata = false;
+    const layout = (this.layout = new SingletonLayout());
+
+    const node = document.createElement('div');
+    const content = document.createElement('div');
+    content.textContent = this._trans.__('No metadata.');
+    content.className = 'jp-MetadataForm-placeholderContent';
+    node.appendChild(content);
+    this._placeholder = new Widget({ node });
+    this._placeholder.addClass('jp-MetadataForm-placeholder');
+    layout.widget = this._placeholder;
+  }
+
+  /**
+   * Get the form object itself.
+   */
+  get form(): FormWidget | undefined {
+    return this._form;
+  }
+
+  /**
+   * Get the list of existing metadataKey (array of string).
+   *
+   * ## NOTE:
+   * The list contains also the conditional fields, which are not necessary
+   * displayed and filled.
+   */
+  get metadataKeys(): string[] {
+    const metadataKeys: string[] = [];
+
+    // MetadataKey from schema.
+    for (let metadataKey of Object.keys(this._metadataSchema.properties)) {
+      metadataKeys.push(metadataKey);
+    }
+
+    // Possible additional metadataKeys from conditional schema.
+    this._metadataSchema.allOf?.forEach(conditional => {
+      if (conditional.then !== undefined) {
+        if ((conditional.then as PartialJSONObject).properties !== undefined) {
+          let properties = (conditional.then as PartialJSONObject)
+            .properties as PartialJSONObject;
+          for (let metadataKey of Object.keys(properties)) {
+            if (!metadataKeys.includes(metadataKey))
+              metadataKeys.push(metadataKey);
+          }
+        }
+      }
+
+      if (conditional.else !== undefined) {
+        if ((conditional.else as PartialJSONObject).properties !== undefined) {
+          let properties = (conditional.else as PartialJSONObject)
+            .properties as PartialJSONObject;
+          for (let metadataKey of Object.keys(properties)) {
+            if (!metadataKeys.includes(metadataKey))
+              metadataKeys.push(metadataKey);
+          }
+        }
+      }
+    });
+
+    return metadataKeys;
+  }
+
+  /**
+   * Get the properties of a MetadataKey.
+   *
+   * @param metadataKey - metadataKey (string).
+   */
+  getProperties(metadataKey: string): PartialJSONObject | null {
+    return (
+      JSONExt.deepCopy(this._metadataSchema.properties[metadataKey]) || null
+    );
+  }
+
+  /**
+   * Set properties to a metadataKey.
+   *
+   * @param metadataKey - metadataKey (string).
+   * @param properties - the properties to add or modify.
+   */
+  setProperties(metadataKey: string, properties: PartialJSONObject): void {
+    Object.entries(properties).forEach(([key, value]) => {
+      this._metadataSchema.properties[metadataKey][key] = value;
+    });
+  }
+
+  /**
+   * Update the metadata of the current cell or notebook.
+   *
+   * @param formData - the cell metadata set in the form.
+   * @param reload - whether to update the form after updating the metadata.
+   *
+   * ## Notes
+   * Metadata are updated from root only. If some metadata is nested,
+   * the whole root object must be updated.
+   * This function build an object with all the root object to update
+   * in metadata before performing update.
+   * It uses an arrow function to allow using 'this' properly when called from a custom field.
+   */
+  updateMetadata = (
+    formData: ReadonlyPartialJSONObject,
+    reload?: boolean
+  ): void => {
+    if (this.notebookTools == undefined) return;
+
+    const notebook = this.notebookTools.activeNotebookPanel;
+
+    const cell = this.notebookTools.activeCell;
+    if (cell == null) return;
+
+    this._updatingMetadata = true;
+
+    // An object representing the cell metadata to modify.
+    const cellMetadataObject: Private.IMetadataRepresentation = {};
+
+    // An object representing the notebook metadata to modify.
+    const notebookMetadataObject: Private.IMetadataRepresentation = {};
+
+    for (let [metadataKey, value] of Object.entries(formData)) {
+      // Continue if the metadataKey does not exist in schema.
+      if (!this.metadataKeys.includes(metadataKey)) continue;
+
+      // Continue if the metadataKey is a notebook level one and there is no NotebookModel.
+      if (
+        this._metaInformation[metadataKey]?.level === 'notebook' &&
+        this._notebookModelNull
+      )
+        continue;
+
+      // Continue if the metadataKey is not applicable to the cell type.
+      if (
+        this._metaInformation[metadataKey]?.cellTypes &&
+        !this._metaInformation[metadataKey]?.cellTypes?.includes(
+          cell.model.type
+        )
+      ) {
+        continue;
+      }
+      let currentMetadata: PartialJSONObject;
+      let metadataObject: Private.IMetadataRepresentation;
+
+      // Linking the working variable to the corresponding metadata and representation.
+      if (this._metaInformation[metadataKey]?.level === 'notebook') {
+        // Working on notebook metadata.
+        currentMetadata = notebook!.model!.metadata;
+        metadataObject = notebookMetadataObject;
+      } else {
+        // Working on cell metadata.
+        currentMetadata = cell.model.metadata;
+        metadataObject = cellMetadataObject;
+      }
+
+      // Remove first and last '/' if necessary and split the path.
+      let nestedKey = metadataKey
+        .replace(/^\/+/, '')
+        .replace(/\/+$/, '')
+        .split('/');
+
+      let baseMetadataKey = nestedKey[0];
+      if (baseMetadataKey == undefined) continue;
+
+      let writeFinalData =
+        value !== undefined &&
+        ((this._metaInformation[metadataKey]?.writeDefault ?? true) ||
+          value !== this._metaInformation[metadataKey]?.default);
+
+      // If metadata key is at root of metadata no need to go further.
+      if (nestedKey.length == 1) {
+        if (writeFinalData)
+          metadataObject[baseMetadataKey] = value as PartialJSONValue;
+        else metadataObject[baseMetadataKey] = undefined;
+        continue;
+      }
+
+      let intermediateMetadataKeys = nestedKey.slice(1, -1);
+      let finalMetadataKey = nestedKey[nestedKey.length - 1];
+
+      // Deep copy of the metadata if not already done.
+      if (!(baseMetadataKey in metadataObject)) {
+        metadataObject[baseMetadataKey] = currentMetadata[baseMetadataKey];
+      }
+      if (metadataObject[baseMetadataKey] === undefined)
+        metadataObject[baseMetadataKey] = {};
+
+      // Let's have an object which points to the nested key.
+      let workingObject: PartialJSONObject = metadataObject[
+        baseMetadataKey
+      ] as PartialJSONObject;
+
+      let finalObjectReached = true;
+
+      for (let nested of intermediateMetadataKeys) {
+        // If one of the nested object does not exist, this object is created
+        // only if there is a final data to write.
+        if (!(nested in workingObject)) {
+          if (!writeFinalData) {
+            finalObjectReached = false;
+            break;
+          } else workingObject[nested] = {};
+        }
+        workingObject = workingObject[nested] as PartialJSONObject;
+      }
+
+      // Write the value to the nested key or remove all empty object before the nested key,
+      // only if the final object has been reached.
+      if (finalObjectReached) {
+        if (!writeFinalData) delete workingObject[finalMetadataKey];
+        else workingObject[finalMetadataKey] = value as PartialJSONValue;
+      }
+
+      // If the final nested data has been deleted, let see if there is not remaining
+      // empty objects to remove.
+      if (!writeFinalData) {
+        metadataObject[baseMetadataKey] = Private.deleteEmptyNested(
+          metadataObject[baseMetadataKey] as PartialJSONObject,
+          nestedKey.slice(1)
+        );
+        if (
+          !Object.keys(metadataObject[baseMetadataKey] as PartialJSONObject)
+            .length
+        )
+          metadataObject[baseMetadataKey] = undefined;
+      }
+    }
+
+    // Set the cell metadata or delete it if value is undefined or empty object.
+    for (let [key, value] of Object.entries(cellMetadataObject)) {
+      if (value === undefined) cell.model.deleteMetadata(key);
+      else cell.model.setMetadata(key, value as ReadonlyPartialJSONValue);
+    }
+
+    // Set the notebook metadata or delete it if value is undefined or empty object.
+    if (!this._notebookModelNull) {
+      for (let [key, value] of Object.entries(notebookMetadataObject)) {
+        if (value === undefined) notebook!.model!.deleteMetadata(key);
+        else
+          notebook!.model!.setMetadata(key, value as ReadonlyPartialJSONValue);
+      }
+    }
+
+    this._updatingMetadata = false;
+
+    if (reload) {
+      this._update();
+    }
+  };
+
+  /**
+   * Set the content of the widget.
+   */
+  protected setContent(content: Widget | null): void {
+    const layout = this.layout as SingletonLayout;
+    if (layout.widget) {
+      layout.widget.removeClass('jp-MetadataForm-content');
+      layout.removeWidget(layout.widget);
+    }
+    if (!content) {
+      content = this._placeholder;
+    }
+    content.addClass('jp-MetadataForm-content');
+    layout.widget = content;
+  }
+
+  /**
+   * Build widget.
+   */
+  protected buildWidget(props: MetadataForm.IProps): void {
+    this._form = new FormWidget(props);
+    this._form.addClass('jp-MetadataForm');
+    this.setContent(this._form);
+  }
+
+  /**
+   * Update the form when the widget is displayed.
+   */
+  protected onAfterShow(msg: Message): void {
+    this._update();
+  }
+
+  /**
+   * Handle a change to the active cell.
+   */
+  protected onActiveCellChanged(msg: Message): void {
+    if (this.isVisible) this._update();
+  }
+
+  /**
+   * Handle a change to the active cell metadata.
+   */
+  protected onActiveCellMetadataChanged(_: Message): void {
+    if (!this._updatingMetadata && this.isVisible) this._update();
+  }
+
+  /**
+   * Handle when the active notebook panel changes.
+   */
+  protected onActiveNotebookPanelChanged(_: Message): void {
+    const notebook = this.notebookTools.activeNotebookPanel;
+    this._notebookModelNull = notebook === null || notebook.model === null;
+    if (!this._updatingMetadata && this.isVisible) this._update();
+  }
+
+  /**
+   * Handle a change to the active notebook metadata.
+   */
+  protected onActiveNotebookPanelMetadataChanged(msg: Message): void {
+    if (!this._updatingMetadata && this.isVisible) this._update();
+  }
+
+  /**
+   * Update the form with current cell metadata, and remove inconsistent fields.
+   */
+  private _update(): void {
+    const notebook = this.notebookTools.activeNotebookPanel;
+
+    const cell = this.notebookTools.activeCell;
+    if (cell == undefined) return;
+
+    const formProperties: MetadataForm.IMetadataSchema = JSONExt.deepCopy(
+      this._metadataSchema
+    );
+
+    const formData = {} as JSONObject;
+
+    for (let metadataKey of Object.keys(
+      this._metadataSchema.properties || JSONExt.emptyObject
+    )) {
+      // Do not display the field if it's Notebook metadata and the notebook model is null.
+      if (
+        this._metaInformation[metadataKey]?.level === 'notebook' &&
+        this._notebookModelNull
+      ) {
+        delete formProperties.properties![metadataKey];
+        continue;
+      }
+
+      // Do not display the field if the active cell's type is not involved.
+      if (
+        this._metaInformation[metadataKey]?.cellTypes &&
+        !this._metaInformation[metadataKey]?.cellTypes?.includes(
+          cell.model.type
+        )
+      ) {
+        delete formProperties.properties![metadataKey];
+        continue;
+      }
+
+      let workingObject: PartialJSONObject;
+
+      // Remove the first and last '/' if exist, nad split the path.
+      let nestedKeys = metadataKey
+        .replace(/^\/+/, '')
+        .replace(/\/+$/, '')
+        .split('/');
+
+      // Associates the correct metadata object to the working object.
+      if (this._metaInformation[metadataKey]?.level === 'notebook') {
+        workingObject = notebook!.model!.metadata;
+      } else {
+        workingObject = cell.model.metadata;
+      }
+
+      let hasValue = true;
+
+      // Navigate to the value.
+      for (let nested of nestedKeys) {
+        if (nested in workingObject)
+          workingObject = workingObject[nested] as JSONObject;
+        else {
+          hasValue = false;
+          break;
+        }
+      }
+
+      // Fill the formData with the current metadata value.
+      if (hasValue) formData[metadataKey] = workingObject as JSONValue;
+    }
+
+    this.buildWidget({
+      properties: formProperties,
+      settings: new BaseSettings({
+        schema: this._metadataSchema as PartialJSONObject
+      }),
+      uiSchema: this._uiSchema,
+      translator: this.translator || null,
+      formData: formData,
+      metadataFormWidget: this,
+      showModified: this._showModified,
+      pluginId: this._pluginId
+    });
+  }
+
+  protected translator: ITranslator;
+  private _form: FormWidget | undefined;
+  private _metadataSchema: MetadataForm.IMetadataSchema;
+  private _metaInformation: MetadataForm.IMetaInformation;
+  private _uiSchema: MetadataForm.IUiSchema;
+  private _trans: TranslationBundle;
+  private _placeholder: Widget;
+  private _updatingMetadata: boolean;
+  private _pluginId: string | undefined;
+  private _showModified: boolean;
+  private _notebookModelNull: boolean = false;
+}
+
+namespace Private {
+  /**
+   * The metadata representation object.
+   */
+  export interface IMetadataRepresentation {
+    [metadata: string]: PartialJSONObject | PartialJSONValue | undefined;
+  }
+
+  /**
+   * Recursive function to clean the empty nested metadata before updating real metadata.
+   * this function is called when a nested metadata is undefined (or default), so maybe some
+   * object are now empty.
+   * @param metadataObject: PartialJSONObject representing the metadata to update.
+   * @param metadataKeysList: Array<string> of the undefined nested metadata.
+   * @returns PartialJSONObject without empty object.
+   */
+  export function deleteEmptyNested(
+    metadataObject: PartialJSONObject,
+    metadataKeysList: Array<string>
+  ): PartialJSONObject {
+    let metadataKey = metadataKeysList.shift();
+    if (metadataKey !== undefined && metadataKey in metadataObject) {
+      if (Object.keys(metadataObject[metadataKey] as PartialJSONObject).length)
+        metadataObject[metadataKey] = deleteEmptyNested(
+          metadataObject[metadataKey] as PartialJSONObject,
+          metadataKeysList
+        );
+      if (!Object.keys(metadataObject[metadataKey] as PartialJSONObject).length)
+        delete metadataObject[metadataKey];
+    }
+    return metadataObject;
+  }
+}
diff --git a/packages/metadataform/src/metadataformProvider.ts b/packages/metadataform/src/metadataformProvider.ts
new file mode 100644
index 000000000000..ea7714ba9f91
--- /dev/null
+++ b/packages/metadataform/src/metadataformProvider.ts
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { IMetadataFormProvider, MetadataForm } from './token';
+
+export class MetadataFormProvider implements IMetadataFormProvider {
+  add(id: string, widget: MetadataForm.IMetadataForm) {
+    if (!this._items[id]) {
+      this._items[id] = widget;
+    } else {
+      console.warn(`A MetadataformWidget is already registered with id ${id}`);
+    }
+  }
+
+  get(id: string): MetadataForm.IMetadataForm | undefined {
+    if (this._items[id]) {
+      return this._items[id];
+    } else {
+      console.warn(`There is no MetadataformWidget registered with id ${id}`);
+    }
+  }
+
+  _items: { [id: string]: MetadataForm.IMetadataForm } = {};
+}
diff --git a/packages/metadataform/src/token.ts b/packages/metadataform/src/token.ts
new file mode 100644
index 000000000000..b8fc849d8964
--- /dev/null
+++ b/packages/metadataform/src/token.ts
@@ -0,0 +1,221 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module metadataform
+ */
+
+import { CellType } from '@jupyterlab/nbformat';
+import { NotebookTools } from '@jupyterlab/notebook';
+import { BaseSettings, ISettingRegistry } from '@jupyterlab/settingregistry';
+import { ITranslator } from '@jupyterlab/translation';
+import {
+  PartialJSONObject,
+  ReadonlyJSONObject,
+  Token
+} from '@lumino/coreutils';
+import { MetadataFormWidget } from './metadataform';
+
+export namespace MetadataForm {
+  /**
+   * The metadata schema as defined in JSON schema.
+   */
+  export type IMetadataSchema = ISettingRegistry.IMetadataSchema;
+
+  /**
+   * The meta information associated to all properties.
+   */
+  export interface IMetaInformation {
+    [metadataKey: string]: ISingleMetaInformation;
+  }
+
+  /**
+   * The meta information associated to a property.
+   */
+  export interface ISingleMetaInformation {
+    /**
+     * The metadata level, 'cell' or 'notebook'.
+     */
+    level?: 'cell' | 'notebook';
+
+    /**
+     * The cell types to display this metadata field.
+     */
+    cellTypes?: CellType[];
+
+    /**
+     * The default value for this metadata.
+     */
+    default?: any;
+
+    /**
+     * Whether to avoid writing default value in metadata.
+     */
+    writeDefault?: boolean;
+  }
+
+  /**
+   * RJSF ui:schema.
+   */
+  export interface IUiSchema {
+    [metadataKey: string]: IUiSchemaOption;
+  }
+
+  /**
+   * RJSF ui:schema options.
+   */
+  export interface IUiSchemaOption {
+    [option: string]: any;
+  }
+
+  /**
+   * Options passed to MetadataFormWidget.
+   */
+  export interface IOptions {
+    /**
+     * MetadataSchema defined from the settings.
+     */
+    metadataSchema: IMetadataSchema;
+
+    /**
+     * The meta information associated to all properties.
+     */
+    metaInformation: IMetaInformation;
+
+    /**
+     * The uiSchema built when loading schemas.
+     */
+    uiSchema?: IUiSchema;
+
+    /**
+     * The plugin ID.
+     */
+    pluginId?: string;
+
+    /**
+     * Translator object.
+     */
+    translator?: ITranslator;
+
+    /**
+     * Whether to show the modified field from default value.
+     */
+    showModified?: boolean;
+  }
+
+  /**
+   * Props passed to the FormWidget component.
+   */
+  export interface IProps {
+    /**
+     * Properties defined from the settings.
+     */
+    properties: IMetadataSchema;
+
+    /**
+     * Meta information associated to properties.
+     */
+    settings: BaseSettings;
+
+    /**
+     * Current data of the form.
+     */
+    formData: ReadonlyJSONObject;
+
+    /**
+     * Translator object.
+     */
+    translator: ITranslator;
+
+    /**
+     * The parent object of the form.
+     */
+    metadataFormWidget: MetadataFormWidget;
+
+    /**
+     * The uiSchema built when loading schemas.
+     */
+    uiSchema: IUiSchema;
+
+    /**
+     * Whether to show the modified field from default value.
+     */
+    showModified: boolean;
+
+    /**
+     * The plugin ID.
+     */
+    pluginId?: string;
+  }
+
+  /**
+   * A metadata form interface provided when registering
+   * to a metadata form provider.  Allows an owner widget
+   * to set the metadata form content for itself.
+   */
+  export interface IMetadataForm extends NotebookTools.Tool {
+    /**
+     * Get the list of existing metadataKey (array of string).
+     *
+     * ## NOTE:
+     * The list contains also the conditional fields, which are not necessary
+     * displayed and filled.
+     */
+    readonly metadataKeys: string[];
+
+    /**
+     * Get the properties of a MetadataKey.
+     * @param metadataKey - metadataKey (array of string).
+     */
+    getProperties(metadataKey: string): PartialJSONObject | null;
+
+    /**
+     * Set properties to a metadataKey.
+     * @param metadataKey - metadataKey (array of string).
+     * @param properties - the properties to add or modify.
+     */
+    setProperties(metadataKey: string, properties: PartialJSONObject): void;
+
+    /**
+     * Update the metadata of the current cell or notebook.
+     *
+     * @param formData: the cell metadata set in the form.
+     * @param reload: whether to update the form after updating the metadata.
+     *
+     * ## Notes
+     * Metadata are updated from root only. If some metadata is nested,
+     * the whole root object must be updated.
+     * This function build an object with all the root object to update
+     * in metadata before performing update.
+     */
+    updateMetadata(formData: ReadonlyJSONObject, reload?: boolean): void;
+  }
+}
+
+/**
+ * A provider for metadata form.
+ */
+export interface IMetadataFormProvider {
+  /**
+   * Add a MetadataFormWidget to the provider.
+   */
+  add(id: string, widget: MetadataForm.IMetadataForm): void;
+
+  /**
+   * Get a MetadataFormWidget from id.
+   */
+  get(id: string): MetadataForm.IMetadataForm | undefined;
+
+  /**
+   * Each ID must be described in schema.
+   */
+  _items: { [id: string]: MetadataForm.IMetadataForm };
+}
+
+/**
+ * The metadata form provider token.
+ */
+export const IMetadataFormProvider = new Token<IMetadataFormProvider>(
+  '@jupyterlab/metadataform:IMetadataFormProvider',
+  `A service to register new metadata editor widgets.`
+);
diff --git a/packages/metadataform/style/base.css b/packages/metadataform/style/base.css
new file mode 100644
index 000000000000..6d0472990e43
--- /dev/null
+++ b/packages/metadataform/style/base.css
@@ -0,0 +1,25 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) 2014-2019, Jupyter Development Team.
+|
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+.jp-MetadataForm {
+  width: 100%;
+  color: var(--jp-ui-font-color1);
+  background: var(--jp-layout-color1);
+}
+
+.jp-MetadataForm-placeholder {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.jp-MetadataForm-placeholderContent {
+  padding: 8px;
+}
+
+.jp-MetadataForm .panel-danger.errors {
+  display: none;
+}
diff --git a/packages/celltags/style/index.css b/packages/metadataform/style/index.css
similarity index 82%
rename from packages/celltags/style/index.css
rename to packages/metadataform/style/index.css
index b8a4c6f09b70..8c16b00a8606 100644
--- a/packages/celltags/style/index.css
+++ b/packages/metadataform/style/index.css
@@ -6,8 +6,6 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/application/style/index.css');
-@import url('~@jupyterlab/cells/style/index.css');
+@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/celltags/style/index.js b/packages/metadataform/style/index.js
similarity index 84%
rename from packages/celltags/style/index.js
rename to packages/metadataform/style/index.js
index f1381b65c86c..1afa22dffa7c 100644
--- a/packages/celltags/style/index.js
+++ b/packages/metadataform/style/index.js
@@ -6,8 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/application/style/index.js';
-import '@jupyterlab/cells/style/index.js';
+import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/notebook/style/index.js';
 
 import './base.css';
diff --git a/packages/metadataform/test/metadataFormWidget.spec.ts b/packages/metadataform/test/metadataFormWidget.spec.ts
new file mode 100644
index 000000000000..0c4159bf4ba0
--- /dev/null
+++ b/packages/metadataform/test/metadataFormWidget.spec.ts
@@ -0,0 +1,332 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { JSONExt } from '@lumino/coreutils';
+import { Context } from '@jupyterlab/docregistry';
+import {
+  INotebookModel,
+  NotebookPanel,
+  NotebookTools,
+  NotebookTracker
+} from '@jupyterlab/notebook';
+import {
+  initNotebookContext,
+  NBTestUtils
+} from '@jupyterlab/notebook/lib/testutils';
+import { JupyterServer, sleep } from '@jupyterlab/testing';
+import { MetadataForm, MetadataFormWidget } from '../src';
+
+const server = new JupyterServer();
+
+beforeAll(async () => {
+  await server.start();
+}, 30000);
+
+afterAll(async () => {
+  await server.shutdown();
+});
+
+describe('metadataform/form simple', () => {
+  let notebookTools: NotebookTools;
+  let tracker: NotebookTracker;
+  let context: Context<INotebookModel>;
+  let panel: NotebookPanel;
+  let schema: MetadataForm.IMetadataSchema;
+  let metaInformation: MetadataForm.IMetaInformation;
+
+  beforeEach(async () => {
+    schema = {
+      type: 'object',
+      properties: {
+        '/cell-metadata': {
+          type: 'string'
+        },
+        '/notebook-metadata': {
+          type: 'string'
+        }
+      }
+    };
+
+    metaInformation = {
+      '/cell-metadata': {
+        cellTypes: ['code']
+      },
+      '/notebook-metadata': {
+        level: 'notebook'
+      }
+    };
+
+    context = await initNotebookContext();
+    panel = NBTestUtils.createNotebookPanel(context);
+    NBTestUtils.populateNotebook(panel.content);
+
+    tracker = new NotebookTracker({ namespace: 'notebook' });
+    await tracker.add(panel);
+    notebookTools = new NotebookTools({ tracker });
+
+    // Give the posted messages a chance to be handled.
+    await sleep();
+  });
+
+  afterEach(() => {
+    notebookTools.dispose();
+    panel.dispose();
+    context.dispose();
+  });
+
+  async function buildForm(): Promise<MetadataFormWidget> {
+    const metadataForm = new MetadataFormWidget({
+      metadataSchema: JSONExt.deepCopy(schema),
+      metaInformation: metaInformation,
+      pluginId: 'test-plugin'
+    });
+    // add the metadataForm in a section of the notebookTools.
+    notebookTools.addSection({ sectionName: 'testSchema', tool: metadataForm });
+    // associate notebook to metadataForm.
+    metadataForm.notebookTools = notebookTools;
+    // Fake update metadata to force build.
+    metadataForm.updateMetadata({}, true);
+    // Manually update the form (force render).
+    metadataForm.form?.update();
+    // Wait for the message to be received, and the promise to be updated.
+    await sleep(100);
+    // Wait for the rendering to be over.
+    await metadataForm.form?.renderPromise;
+
+    return metadataForm;
+  }
+
+  it('should have only placeholder as no notebook is associated', () => {
+    const metadataForm = new MetadataFormWidget({
+      metadataSchema: schema,
+      metaInformation: metaInformation,
+      pluginId: 'test-plugin'
+    });
+    metadataForm.updateMetadata({}, true);
+    const node = metadataForm.node as HTMLElement;
+    expect(node.children).toHaveLength(1);
+    const formNode = node.children[0];
+    expect(formNode.className.split(' ')).toContain(
+      'jp-MetadataForm-placeholder'
+    );
+  });
+
+  it('should return the metadataKeys', async () => {
+    const metadataForm = await buildForm();
+    expect(metadataForm.metadataKeys).toEqual([
+      '/cell-metadata',
+      '/notebook-metadata'
+    ]);
+  });
+
+  it('should return the properties', async () => {
+    const metadataForm = await buildForm();
+    expect(metadataForm.getProperties('/cell-metadata')).toEqual(
+      schema.properties['/cell-metadata']
+    );
+    expect(metadataForm.getProperties('/notebook-metadata')).toEqual(
+      schema.properties['/notebook-metadata']
+    );
+  });
+
+  it('should set the properties', async () => {
+    const metadataForm = await buildForm();
+    const node = metadataForm.node as HTMLElement;
+    expect(
+      node
+        .getElementsByClassName('jp-inputFieldWrapper')[0]
+        .children[0].getAttribute('type')
+    ).toBe('text');
+
+    metadataForm.setProperties('/cell-metadata', { type: 'integer' });
+    expect(metadataForm.getProperties('/cell-metadata')).not.toEqual(
+      schema.properties['/cell-metadata']
+    );
+
+    // Force the form to update and expect the text input has been changed to number input.
+    metadataForm.updateMetadata({}, true);
+    metadataForm.form?.update();
+    await sleep(100);
+    expect(
+      node
+        .getElementsByClassName('jp-inputFieldWrapper')[0]
+        .children[0].getAttribute('type')
+    ).toBe('number');
+  });
+
+  it('should build the form', async () => {
+    const metadataForm = await buildForm();
+
+    const node = metadataForm.node as HTMLElement;
+    expect(node.children).toHaveLength(1);
+    const formNode = node.children[0];
+    expect(formNode.className.split(' ')).toContain('jp-MetadataForm');
+    expect(formNode.children).toHaveLength(1);
+    expect(formNode.children[0].className).toBe('rjsf');
+
+    // Expect 2 inputs in the form.
+    expect(
+      formNode.getElementsByClassName('jp-inputFieldWrapper')
+    ).toHaveLength(2);
+  });
+
+  it('should update cell metadata', async () => {
+    const metadataForm = await buildForm();
+    expect(
+      tracker.activeCell?.model.getMetadata('cell-metadata')
+    ).toBeUndefined();
+    metadataForm.updateMetadata({ '/cell-metadata': 'test value' });
+    expect(tracker.activeCell?.model.getMetadata('cell-metadata')).toBe(
+      'test value'
+    );
+  });
+
+  it('should update notebook metadata', async () => {
+    const metadataForm = await buildForm();
+    expect(
+      tracker.currentWidget?.model?.getMetadata('notebook-metadata')
+    ).toBeUndefined();
+    metadataForm.updateMetadata({ '/notebook-metadata': 'test value' });
+    expect(tracker.currentWidget?.model?.getMetadata('notebook-metadata')).toBe(
+      'test value'
+    );
+  });
+
+  it('should not update cell metadata if metadataKey is not in schema', async () => {
+    const metadataForm = await buildForm();
+    expect(
+      tracker.activeCell?.model.getMetadata('fake-metadata')
+    ).toBeUndefined();
+    metadataForm.updateMetadata({ '/fake-metadata': 'test value' });
+    expect(
+      tracker.activeCell?.model.getMetadata('fake-metadata')
+    ).toBeUndefined();
+  });
+
+  it('should not update the cell metadata if the cell type is not a valid one', async () => {
+    const metadataForm = await buildForm();
+
+    // Switch to a markdown cell.
+    tracker.currentWidget!.content.activeCellIndex++;
+
+    expect(
+      tracker.activeCell?.model.getMetadata('cell-metadata')
+    ).toBeUndefined();
+    metadataForm.updateMetadata({ '/cell-metadata': 'test value' });
+    expect(
+      tracker.activeCell?.model.getMetadata('cell-metadata')
+    ).toBeUndefined();
+  });
+
+  it('should not update the form if it is not visible', async () => {
+    const metadataForm = await buildForm();
+
+    // Switch to a markdown cell.
+    tracker.currentWidget!.content.activeCellIndex++;
+
+    // The form should not be updated from signal because it is not visible.
+    metadataForm.form?.update();
+    await sleep(100);
+    const node = metadataForm.node as HTMLElement;
+    expect(node.getElementsByClassName('jp-inputFieldWrapper')).toHaveLength(2);
+
+    // Force the form to update, the cell field should have disappeared.
+    metadataForm.updateMetadata({}, true);
+    metadataForm.form?.update();
+    await sleep(100);
+    expect(node.getElementsByClassName('jp-inputFieldWrapper')).toHaveLength(1);
+  });
+});
+
+describe('metadataform/form conditional', () => {
+  let notebookTools: NotebookTools;
+  let tracker: NotebookTracker;
+  let context: Context<INotebookModel>;
+  let panel: NotebookPanel;
+  let schema: MetadataForm.IMetadataSchema;
+  let metaInformation: MetadataForm.IMetaInformation;
+
+  beforeEach(async () => {
+    schema = {
+      type: 'object',
+      properties: {
+        '/condition': {
+          type: 'string'
+        }
+      },
+      allOf: [
+        {
+          if: {
+            properties: {
+              '/condition': {
+                const: 'condition'
+              }
+            }
+          },
+          then: {
+            properties: {
+              '/then': {
+                type: 'string'
+              }
+            }
+          },
+          else: {
+            properties: {
+              '/else': {
+                type: 'string'
+              }
+            }
+          }
+        }
+      ]
+    };
+
+    metaInformation = {};
+
+    context = await initNotebookContext();
+    panel = NBTestUtils.createNotebookPanel(context);
+    NBTestUtils.populateNotebook(panel.content);
+
+    tracker = new NotebookTracker({ namespace: 'notebook' });
+    await tracker.add(panel);
+    notebookTools = new NotebookTools({ tracker });
+
+    // Give the posted messages a chance to be handled.
+    await sleep();
+  });
+
+  afterEach(() => {
+    notebookTools.dispose();
+    panel.dispose();
+    context.dispose();
+  });
+
+  async function buildForm(): Promise<MetadataFormWidget> {
+    const metadataForm = new MetadataFormWidget({
+      metadataSchema: JSONExt.deepCopy(schema),
+      metaInformation: metaInformation,
+      pluginId: 'test-plugin'
+    });
+    // add the metadataForm in a section of the notebookTools.
+    notebookTools.addSection({ sectionName: 'testSchema', tool: metadataForm });
+    // associate notebook to metadataForm.
+    metadataForm.notebookTools = notebookTools;
+    // Fake update metadata to force build.
+    metadataForm.updateMetadata({}, true);
+    // Manually update the form (force render).
+    metadataForm.form?.update();
+    // Wait for the message to be received, and the promise to be updated.
+    await sleep(100);
+    // Wait for the rendering to be over.
+    await metadataForm.form?.renderPromise;
+
+    return metadataForm;
+  }
+
+  it('should return the conditional metadataKeys', async () => {
+    const metadataForm = await buildForm();
+    expect(metadataForm.metadataKeys).toEqual(['/condition', '/then', '/else']);
+  });
+});
diff --git a/packages/docprovider/tsconfig.json b/packages/metadataform/tsconfig.json
similarity index 66%
rename from packages/docprovider/tsconfig.json
rename to packages/metadataform/tsconfig.json
index 428a229f6a81..4a053a9ca7bc 100644
--- a/packages/docprovider/tsconfig.json
+++ b/packages/metadataform/tsconfig.json
@@ -10,16 +10,19 @@
       "path": "../apputils"
     },
     {
-      "path": "../coreutils"
+      "path": "../nbformat"
     },
     {
-      "path": "../services"
+      "path": "../notebook"
     },
     {
-      "path": "../shared-models"
+      "path": "../settingregistry"
     },
     {
       "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/metadataform/tsconfig.test.json b/packages/metadataform/tsconfig.test.json
new file mode 100644
index 000000000000..87294d994906
--- /dev/null
+++ b/packages/metadataform/tsconfig.test.json
@@ -0,0 +1,30 @@
+{
+  "extends": "../../tsconfigbase.test",
+  "include": ["src/*", "test/*"],
+  "references": [
+    {
+      "path": "../apputils"
+    },
+    {
+      "path": "../nbformat"
+    },
+    {
+      "path": "../notebook"
+    },
+    {
+      "path": "../settingregistry"
+    },
+    {
+      "path": "../translation"
+    },
+    {
+      "path": "../ui-components"
+    },
+    {
+      "path": "."
+    },
+    {
+      "path": "../testing"
+    }
+  ]
+}
diff --git a/packages/metapackage/babel.config.js b/packages/metapackage/babel.config.js
new file mode 100644
index 000000000000..eb2198a956e7
--- /dev/null
+++ b/packages/metapackage/babel.config.js
@@ -0,0 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/metapackage/build-doc-index.js b/packages/metapackage/build-doc-index.js
index 62bea650e4ec..efba274b754d 100644
--- a/packages/metapackage/build-doc-index.js
+++ b/packages/metapackage/build-doc-index.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const fs = require('fs-extra');
 const utils = require('@jupyterlab/buildutils');
 
diff --git a/packages/metapackage/jest.config.js b/packages/metapackage/jest.config.js
new file mode 100644
index 000000000000..cd234acbbdc0
--- /dev/null
+++ b/packages/metapackage/jest.config.js
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
+module.exports = func(__dirname);
diff --git a/packages/metapackage/package.json b/packages/metapackage/package.json
index f0cd1ec68e17..80026b6da5c6 100644
--- a/packages/metapackage/package.json
+++ b/packages/metapackage/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/metapackage",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Meta Package.  All of the packages used by the core JupyterLab application",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -21,116 +21,122 @@
   "files": [
     "lib/*.d.ts",
     "lib/*.js.map",
-    "lib/*.js"
+    "lib/*.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
     "build:all": "npm run build",
+    "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "docs": "node build-doc-index.js",
+    "test": "jest",
+    "test:cov": "jest --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/application-extension": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/apputils-extension": "^3.6.6",
-    "@jupyterlab/attachments": "^3.6.6",
-    "@jupyterlab/cell-toolbar": "^3.6.6",
-    "@jupyterlab/cell-toolbar-extension": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/celltags": "^3.6.6",
-    "@jupyterlab/celltags-extension": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/codemirror-extension": "^3.6.6",
-    "@jupyterlab/collaboration": "^3.6.6",
-    "@jupyterlab/collaboration-extension": "^3.6.6",
-    "@jupyterlab/completer": "^3.6.6",
-    "@jupyterlab/completer-extension": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/console-extension": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/csvviewer": "^3.6.6",
-    "@jupyterlab/csvviewer-extension": "^3.6.6",
-    "@jupyterlab/debugger": "^3.6.6",
-    "@jupyterlab/debugger-extension": "^3.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docmanager-extension": "^3.6.6",
-    "@jupyterlab/docprovider": "^3.6.6",
-    "@jupyterlab/docprovider-extension": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/documentsearch": "^3.6.6",
-    "@jupyterlab/documentsearch-extension": "^3.6.6",
-    "@jupyterlab/extensionmanager": "^3.6.6",
-    "@jupyterlab/extensionmanager-extension": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/filebrowser-extension": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/fileeditor-extension": "^3.6.6",
-    "@jupyterlab/help-extension": "^3.6.6",
-    "@jupyterlab/htmlviewer": "^3.6.6",
-    "@jupyterlab/htmlviewer-extension": "^3.6.6",
-    "@jupyterlab/hub-extension": "^3.6.6",
-    "@jupyterlab/imageviewer": "^3.6.6",
-    "@jupyterlab/imageviewer-extension": "^3.6.6",
-    "@jupyterlab/inspector": "^3.6.6",
-    "@jupyterlab/inspector-extension": "^3.6.6",
-    "@jupyterlab/javascript-extension": "^3.6.6",
-    "@jupyterlab/json-extension": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/launcher-extension": "^3.6.6",
-    "@jupyterlab/logconsole": "^3.6.6",
-    "@jupyterlab/logconsole-extension": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/mainmenu-extension": "^3.6.6",
-    "@jupyterlab/markdownviewer": "^3.6.6",
-    "@jupyterlab/markdownviewer-extension": "^3.6.6",
-    "@jupyterlab/mathjax2": "^3.6.6",
-    "@jupyterlab/mathjax2-extension": "^3.6.6",
-    "@jupyterlab/nbconvert-css": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/notebook-extension": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/outputarea": "^3.6.6",
-    "@jupyterlab/pdf-extension": "^3.6.6",
-    "@jupyterlab/property-inspector": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-extension": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/running": "^3.6.6",
-    "@jupyterlab/running-extension": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingeditor": "^3.6.6",
-    "@jupyterlab/settingeditor-extension": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/shortcuts-extension": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/statusbar-extension": "^3.6.6",
-    "@jupyterlab/terminal": "^3.6.6",
-    "@jupyterlab/terminal-extension": "^3.6.6",
-    "@jupyterlab/theme-dark-extension": "^3.6.6",
-    "@jupyterlab/theme-light-extension": "^3.6.6",
-    "@jupyterlab/toc": "^5.6.6",
-    "@jupyterlab/toc-extension": "^5.6.6",
-    "@jupyterlab/tooltip": "^3.6.6",
-    "@jupyterlab/tooltip-extension": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/translation-extension": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@jupyterlab/ui-components-extension": "^3.6.6",
-    "@jupyterlab/vdom": "^3.6.6",
-    "@jupyterlab/vdom-extension": "^3.6.6",
-    "@jupyterlab/vega5-extension": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/application-extension": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/apputils-extension": "^4.0.8",
+    "@jupyterlab/attachments": "^4.0.8",
+    "@jupyterlab/cell-toolbar": "^4.0.8",
+    "@jupyterlab/cell-toolbar-extension": "^4.0.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/celltags-extension": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/codemirror-extension": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/completer-extension": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/console-extension": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/csvviewer": "^4.0.8",
+    "@jupyterlab/csvviewer-extension": "^4.0.8",
+    "@jupyterlab/debugger": "^4.0.8",
+    "@jupyterlab/debugger-extension": "^4.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docmanager-extension": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/documentsearch-extension": "^4.0.8",
+    "@jupyterlab/extensionmanager": "^4.0.8",
+    "@jupyterlab/extensionmanager-extension": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/filebrowser-extension": "^4.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/fileeditor-extension": "^4.0.8",
+    "@jupyterlab/help-extension": "^4.0.8",
+    "@jupyterlab/htmlviewer": "^4.0.8",
+    "@jupyterlab/htmlviewer-extension": "^4.0.8",
+    "@jupyterlab/hub-extension": "^4.0.8",
+    "@jupyterlab/imageviewer": "^4.0.8",
+    "@jupyterlab/imageviewer-extension": "^4.0.8",
+    "@jupyterlab/inspector": "^4.0.8",
+    "@jupyterlab/inspector-extension": "^4.0.8",
+    "@jupyterlab/javascript-extension": "^4.0.8",
+    "@jupyterlab/json-extension": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/launcher-extension": "^4.0.8",
+    "@jupyterlab/logconsole": "^4.0.8",
+    "@jupyterlab/logconsole-extension": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/lsp-extension": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/mainmenu-extension": "^4.0.8",
+    "@jupyterlab/markdownviewer": "^4.0.8",
+    "@jupyterlab/markdownviewer-extension": "^4.0.8",
+    "@jupyterlab/markedparser-extension": "^4.0.8",
+    "@jupyterlab/mathjax-extension": "^4.0.8",
+    "@jupyterlab/metadataform": "^4.0.8",
+    "@jupyterlab/metadataform-extension": "^4.0.8",
+    "@jupyterlab/nbconvert-css": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/notebook-extension": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/outputarea": "^4.0.8",
+    "@jupyterlab/pdf-extension": "^4.0.8",
+    "@jupyterlab/property-inspector": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-extension": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/running": "^4.0.8",
+    "@jupyterlab/running-extension": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingeditor": "^4.0.8",
+    "@jupyterlab/settingeditor-extension": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/shortcuts-extension": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/statusbar-extension": "^4.0.8",
+    "@jupyterlab/terminal": "^4.0.8",
+    "@jupyterlab/terminal-extension": "^4.0.8",
+    "@jupyterlab/theme-dark-extension": "^4.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/toc-extension": "^6.0.8",
+    "@jupyterlab/tooltip": "^4.0.8",
+    "@jupyterlab/tooltip-extension": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/translation-extension": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@jupyterlab/ui-components-extension": "^4.0.8",
+    "@jupyterlab/vega5-extension": "^4.0.8"
   },
   "devDependencies": {
-    "fs-extra": "^9.0.1",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "fs-extra": "^10.1.0",
+    "jest": "^29.2.0",
+    "json-to-html": "~0.1.2",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer/test/handler.spec.ts b/packages/metapackage/test/completer/handler.spec.ts
similarity index 60%
rename from packages/completer/test/handler.spec.ts
rename to packages/metapackage/test/completer/handler.spec.ts
index d36c26e05e13..e8c9c5680a04 100644
--- a/packages/completer/test/handler.spec.ts
+++ b/packages/metapackage/test/completer/handler.spec.ts
@@ -3,18 +3,28 @@
 
 import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
 import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import { CodeMirrorEditor, ybinding } from '@jupyterlab/codemirror';
 import {
   Completer,
   CompleterModel,
   CompletionHandler,
-  KernelConnector
+  CompletionTriggerKind,
+  ICompletionContext,
+  ICompletionProvider,
+  ProviderReconciliator
 } from '@jupyterlab/completer';
-import { createSessionContext } from '@jupyterlab/testutils';
+import { Widget } from '@lumino/widgets';
+import { ISharedText, SourceChange, YFile } from '@jupyter/ydoc';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 
 function createEditorWidget(): CodeEditorWrapper {
-  const model = new CodeEditor.Model();
+  const model = new CodeEditor.Model({ sharedModel: new YFile() });
   const factory = (options: CodeEditor.IOptions) => {
+    const m = options.model.sharedModel as any;
+    options.extensions = [
+      ...(options.extensions ?? []),
+      ybinding({ ytext: m.ysource })
+    ];
     return new CodeMirrorEditor(options);
   };
   return new CodeEditorWrapper({ factory, model });
@@ -37,8 +47,8 @@ class TestCompleterModel extends CompleterModel {
 class TestCompletionHandler extends CompletionHandler {
   methods: string[] = [];
 
-  onTextChanged(): void {
-    super.onTextChanged();
+  async onTextChanged(str: ISharedText, changed: SourceChange): Promise<void> {
+    void super.onTextChanged(str, changed);
     this.methods.push('onTextChanged');
   }
 
@@ -48,14 +58,48 @@ class TestCompletionHandler extends CompletionHandler {
   }
 }
 
+class FooCompletionProvider implements ICompletionProvider {
+  triggers: CompletionTriggerKind[] = [];
+
+  constructor(private _continuousHint: boolean) {}
+
+  identifier: string = 'FooCompletionProvider';
+  renderer = null;
+
+  async isApplicable(context: ICompletionContext): Promise<boolean> {
+    return true;
+  }
+
+  async fetch(
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext,
+    trigger: CompletionTriggerKind
+  ): Promise<CompletionHandler.ICompletionItemsReply> {
+    this.triggers.push(trigger);
+    return Promise.resolve({ start: 0, end: 0, items: [] });
+  }
+
+  shouldShowContinuousHint(
+    completerIsVisible: boolean,
+    changed: SourceChange,
+    context?: ICompletionContext
+  ) {
+    return this._continuousHint;
+  }
+}
+
 describe('@jupyterlab/completer', () => {
-  let connector: KernelConnector;
+  let reconciliator: ProviderReconciliator;
   let sessionContext: ISessionContext;
 
   beforeAll(async () => {
     sessionContext = await createSessionContext();
     await (sessionContext as SessionContext).initialize();
-    connector = new KernelConnector({ session: sessionContext.session });
+    reconciliator = new ProviderReconciliator({
+      context: null as any,
+      providers: null as any,
+      timeout: 0
+    });
   });
 
   afterAll(() => sessionContext.shutdown());
@@ -64,29 +108,17 @@ describe('@jupyterlab/completer', () => {
     describe('#constructor()', () => {
       it('should create a completer handler', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         expect(handler).toBeInstanceOf(CompletionHandler);
       });
     });
 
-    describe('#connector', () => {
-      it('should be a data connector', () => {
-        const handler = new CompletionHandler({
-          connector,
-          completer: new Completer({ editor: null })
-        });
-        expect(handler.connector).toHaveProperty('fetch');
-        expect(handler.connector).toHaveProperty('remove');
-        expect(handler.connector).toHaveProperty('save');
-      });
-    });
-
     describe('#editor', () => {
       it('should default to null', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         expect(handler.editor).toBeNull();
@@ -94,7 +126,7 @@ describe('@jupyterlab/completer', () => {
 
       it('should be settable', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         const widget = createEditorWidget();
@@ -105,7 +137,7 @@ describe('@jupyterlab/completer', () => {
 
       it('should be resettable', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         const one = createEditorWidget();
@@ -119,7 +151,7 @@ describe('@jupyterlab/completer', () => {
 
       it('should remove the completer active and enabled classes of the old editor', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         const widget = createEditorWidget();
@@ -135,7 +167,7 @@ describe('@jupyterlab/completer', () => {
     describe('#isDisposed', () => {
       it('should be true if handler has been disposed', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         expect(handler.isDisposed).toBe(false);
@@ -147,7 +179,7 @@ describe('@jupyterlab/completer', () => {
     describe('#dispose()', () => {
       it('should dispose of the handler resources', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         expect(handler.isDisposed).toBe(false);
@@ -157,7 +189,7 @@ describe('@jupyterlab/completer', () => {
 
       it('should be safe to call multiple times', () => {
         const handler = new CompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         expect(handler.isDisposed).toBe(false);
@@ -170,14 +202,14 @@ describe('@jupyterlab/completer', () => {
     describe('#onTextChanged()', () => {
       it('should fire when the active editor emits a text change', () => {
         const handler = new TestCompletionHandler({
-          connector,
+          reconciliator,
           completer: new Completer({ editor: null })
         });
         handler.editor = createEditorWidget().editor;
         expect(handler.methods).toEqual(
           expect.not.arrayContaining(['onTextChanged'])
         );
-        handler.editor.model.value.text = 'foo';
+        handler.editor.model.sharedModel.setSource('foo');
         expect(handler.methods).toEqual(
           expect.arrayContaining(['onTextChanged'])
         );
@@ -188,7 +220,7 @@ describe('@jupyterlab/completer', () => {
           editor: null,
           model: new TestCompleterModel()
         });
-        const handler = new TestCompletionHandler({ completer, connector });
+        const handler = new TestCompletionHandler({ completer, reconciliator });
         const editor = createEditorWidget().editor;
         const model = completer.model as TestCompleterModel;
 
@@ -196,11 +228,12 @@ describe('@jupyterlab/completer', () => {
         expect(model.methods).toEqual(
           expect.not.arrayContaining(['handleTextChange'])
         );
-        editor.model.value.text = 'bar';
+        editor.model.sharedModel.setSource('bar');
         editor.setCursorPosition({ line: 0, column: 2 });
         // This signal is emitted (again) because the cursor position that
         // a natural user would create need to be recreated here.
-        (editor.model.value.changed as any).emit({ type: 'set', value: 'bar' });
+        // (editor.model.value.changed as any).emit({ type: 'set', value: 'bar' }); @todo remove?
+        (editor.model.sharedModel.changed as any).emit([]);
         expect(model.methods).toEqual(
           expect.arrayContaining(['handleTextChange'])
         );
@@ -210,7 +243,7 @@ describe('@jupyterlab/completer', () => {
     describe('#onCompletionSelected()', () => {
       it('should fire when the completer widget emits a signal', () => {
         const completer = new Completer({ editor: null });
-        const handler = new TestCompletionHandler({ completer, connector });
+        const handler = new TestCompletionHandler({ completer, reconciliator });
 
         expect(handler.methods).toEqual(
           expect.not.arrayContaining(['onCompletionSelected'])
@@ -226,7 +259,7 @@ describe('@jupyterlab/completer', () => {
           editor: null,
           model: new TestCompleterModel()
         });
-        const handler = new TestCompletionHandler({ completer, connector });
+        const handler = new TestCompletionHandler({ completer, reconciliator });
         const model = completer.model as TestCompleterModel;
 
         handler.editor = createEditorWidget().editor;
@@ -241,7 +274,7 @@ describe('@jupyterlab/completer', () => {
         const model = new CompleterModel();
         const patch = 'foobar';
         const completer = new Completer({ editor: null, model });
-        const handler = new TestCompletionHandler({ completer, connector });
+        const handler = new TestCompletionHandler({ completer, reconciliator });
         const editor = createEditorWidget().editor;
         const text = 'eggs\nfoo # comment\nbaz';
         const want = 'eggs\nfoobar # comment\nbaz';
@@ -257,12 +290,12 @@ describe('@jupyterlab/completer', () => {
         };
 
         handler.editor = editor;
-        handler.editor.model.value.text = text;
+        handler.editor.model.sharedModel.setSource(text);
         handler.editor.setCursorPosition({ line, column: column + 3 });
         model.original = request;
         model.cursor = { start: column, end: column + 3 };
         (completer.selected as any).emit(patch);
-        expect(handler.editor.model.value.text).toBe(want);
+        expect(handler.editor.model.sharedModel.getSource()).toBe(want);
         expect(handler.editor.getCursorPosition()).toEqual({
           line,
           column: column + 6
@@ -273,7 +306,7 @@ describe('@jupyterlab/completer', () => {
         const model = new CompleterModel();
         const patch = 'foobar';
         const completer = new Completer({ editor: null, model });
-        const handler = new TestCompletionHandler({ completer, connector });
+        const handler = new TestCompletionHandler({ completer, reconciliator });
         const editor = createEditorWidget().editor;
         const text = 'eggs\nfoo # comment\nbaz';
         const want = 'eggs\nfoobar # comment\nbaz';
@@ -289,35 +322,148 @@ describe('@jupyterlab/completer', () => {
         };
 
         handler.editor = editor;
-        handler.editor.model.value.text = text;
+        handler.editor.model.sharedModel.setSource(text);
         handler.editor.model.sharedModel.clearUndoHistory();
         handler.editor.setCursorPosition({ line, column: column + 3 });
         model.original = request;
         model.cursor = { start: column, end: column + 3 };
         // Make the completion, check its value and cursor position.
         (completer.selected as any).emit(patch);
-        expect(editor.model.value.text).toBe(want);
+        expect(editor.model.sharedModel.getSource()).toBe(want);
         expect(editor.getCursorPosition()).toEqual({
           line,
           column: column + 6
         });
-        console.warn(editor.getCursorPosition());
         // Undo the completion, check its value and cursor position.
         editor.undo();
-        expect(editor.model.value.text).toBe(text);
+        expect(editor.model.sharedModel.getSource()).toBe(text);
         expect(editor.getCursorPosition()).toEqual({
           line,
           column: column + 3
         });
-        console.warn(editor.getCursorPosition());
         // Redo the completion, check its value and cursor position.
         editor.redo();
-        expect(editor.model.value.text).toBe(want);
+        expect(editor.model.sharedModel.getSource()).toBe(want);
         expect(editor.getCursorPosition()).toEqual({
           line,
           column: column + 6
         });
-        console.warn(editor.getCursorPosition());
+      });
+    });
+
+    describe('#autoCompletion', () => {
+      let anchor: CodeEditorWrapper;
+      let provider: FooCompletionProvider;
+      let handler: CompletionHandler;
+      let context: symbol;
+
+      beforeAll(async () => {
+        anchor = createEditorWidget();
+        Widget.attach(anchor, document.body);
+        context = Symbol();
+
+        provider = new FooCompletionProvider(true);
+        handler = new CompletionHandler({
+          reconciliator: new ProviderReconciliator({
+            context: context as any,
+            providers: [provider],
+            timeout: 0
+          }),
+          completer: new Completer({
+            editor: null,
+            model: new CompleterModel()
+          })
+        });
+
+        handler.editor = anchor.editor;
+        handler.autoCompletion = true;
+      });
+
+      afterAll(() => {
+        anchor.dispose();
+        handler.completer.dispose();
+        handler.dispose();
+      });
+
+      it('should use Invoked for invoke()', async () => {
+        expect(provider.triggers.length).toEqual(0);
+
+        handler.editor!.model.sharedModel.setSource('foo.');
+        anchor.node.focus();
+        anchor.editor.setCursorPosition({ line: 0, column: 4 });
+        handler.invoke();
+        // Need to wait for next tick to finish applicable providers check
+        await new Promise(process.nextTick);
+        expect(provider.triggers).toEqual(
+          expect.arrayContaining([CompletionTriggerKind.Invoked])
+        );
+      });
+
+      it('should use TriggerCharacter for typed text', async () => {
+        // this test depends on the previous one ('should use Invoked for invoke()').
+        expect(provider.triggers.length).toEqual(1);
+
+        handler.editor!.model.sharedModel.updateSource(4, 4, 'a');
+        await new Promise(process.nextTick);
+        expect(provider.triggers.length).toEqual(2);
+        expect(provider.triggers).toEqual(
+          expect.arrayContaining([CompletionTriggerKind.TriggerCharacter])
+        );
+      });
+
+      it('should pass context to `shouldShowContinuousHint()`', async () => {
+        handler.editor!.model.sharedModel.setSource('foo.');
+        await new Promise(process.nextTick);
+        anchor.node.focus();
+        anchor.editor.setCursorPosition({ line: 0, column: 4 });
+        const spy = jest.spyOn(provider, 'shouldShowContinuousHint');
+
+        handler.editor!.model.sharedModel.updateSource(4, 4, 'a');
+        await new Promise(process.nextTick);
+        expect(spy).toHaveBeenCalledTimes(1);
+        expect(spy).toHaveBeenLastCalledWith(
+          false,
+          {
+            sourceChange: [{ retain: 4 }, { insert: 'a' }]
+          } as SourceChange,
+          context
+        );
+        spy.mockRestore();
+      });
+    });
+
+    it('should update cursor position after autocomplete on empty word', () => {
+      const model = new CompleterModel();
+      const patch = 'foobar';
+      const completer = new Completer({ editor: null, model });
+      const handler = new TestCompletionHandler({ completer, reconciliator });
+      const editor = createEditorWidget().editor;
+      const text = 'eggs\n  # comment\nbaz';
+      const want = 'eggs\n foobar # comment\nbaz';
+      const line = 1;
+      const column = 1;
+      const request: Completer.ITextState = {
+        column: column,
+        line,
+        lineHeight: 0,
+        charWidth: 0,
+        coords: null,
+        text
+      };
+
+      handler.editor = editor;
+      handler.editor.model.sharedModel.setSource(text);
+      handler.editor.model.sharedModel.clearUndoHistory();
+      handler.editor.setCursorPosition({ line, column });
+      model.original = request;
+      const offset = handler.editor.getOffsetAt({ line, column });
+      model.cursor = { start: offset, end: offset };
+      // Make the completion, check its value and cursor position.
+      (completer.selected as any).emit(patch);
+      expect(editor.model.sharedModel.getSource()).toBe(want);
+      expect(editor.getCursorPosition()).toEqual({
+        line,
+        column: column + 6
       });
     });
 
diff --git a/packages/metapackage/test/completer/manager.spec.ts b/packages/metapackage/test/completer/manager.spec.ts
new file mode 100644
index 000000000000..80d58364a377
--- /dev/null
+++ b/packages/metapackage/test/completer/manager.spec.ts
@@ -0,0 +1,245 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
+import { Cell, CellModel } from '@jupyterlab/cells';
+import {
+  Completer,
+  CompleterModel,
+  CompletionHandler,
+  CompletionProviderManager,
+  ContextCompleterProvider,
+  ICompletionContext,
+  ICompletionProvider,
+  ProviderReconciliator
+} from '@jupyterlab/completer';
+import { Context } from '@jupyterlab/docregistry';
+import {
+  INotebookModel,
+  NotebookModelFactory,
+  NotebookPanel
+} from '@jupyterlab/notebook';
+import { ServiceManager } from '@jupyterlab/services';
+import { createStandaloneCell } from '@jupyter/ydoc';
+
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
+
+const DEFAULT_PROVIDER_ID = 'CompletionProvider:context';
+const SAMPLE_PROVIDER_ID = 'CompletionProvider:sample';
+
+function contextFactory(): Context<INotebookModel> {
+  const serviceManager = new ServiceManager({ standby: 'never' });
+  const factory = new NotebookModelFactory();
+  const context = new Context({
+    manager: serviceManager,
+    factory,
+    path: 'foo.ipynb',
+    kernelPreference: {
+      shouldStart: false,
+      canStart: false,
+      shutdownOnDispose: true,
+      name: 'default'
+    }
+  });
+  return context;
+}
+
+class TestCellModel extends CellModel {
+  get type(): string {
+    return 'code';
+  }
+}
+
+class CustomCompleterModel extends CompleterModel {}
+
+class CustomRenderer extends Completer.Renderer {}
+
+class FooCompletionProvider implements ICompletionProvider {
+  identifier: string = SAMPLE_PROVIDER_ID;
+  renderer = new CustomRenderer();
+  fetch(
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext
+  ): Promise<CompletionHandler.ICompletionItemsReply> {
+    return Promise.resolve({
+      start: 3,
+      end: 3,
+      items: [
+        { label: 'fooModule', type: 'module' },
+        { label: 'barFunction', type: 'function' }
+      ]
+    });
+  }
+  async isApplicable(context: ICompletionContext): Promise<boolean> {
+    return true;
+  }
+
+  async modelFactory(context: ICompletionContext): Promise<Completer.IModel> {
+    if (!(this instanceof FooCompletionProvider)) {
+      throw new Error(
+        'The context `this` should be an instance of `FooCompletionProvider`.'
+      );
+    }
+    return new CustomCompleterModel();
+  }
+}
+
+describe('completer/manager', () => {
+  let sessionContext: ISessionContext;
+  let manager: CompletionProviderManager;
+
+  beforeAll(async () => {
+    sessionContext = await createSessionContext();
+    await (sessionContext as SessionContext).initialize();
+  });
+
+  afterAll(() => sessionContext.shutdown());
+
+  beforeEach(() => {
+    manager = new CompletionProviderManager();
+    manager.registerProvider(new ContextCompleterProvider());
+    manager.activateProvider(['CompletionProvider:context']);
+  });
+
+  describe('CompletionProviderManager', () => {
+    describe('#constructor()', () => {
+      it('should create a manager', () => {
+        expect(manager).toBeInstanceOf(CompletionProviderManager);
+      });
+    });
+
+    describe('#generateReconciliator()', () => {
+      it('should create a ProviderReconciliator', async () => {
+        const reconciliator = await manager['generateReconciliator']({
+          session: sessionContext.session,
+          editor: null
+        });
+        expect(reconciliator).toBeInstanceOf(ProviderReconciliator);
+        expect(reconciliator['_providers'].length).toBe(1);
+      });
+    });
+
+    describe('#registerProvider()', () => {
+      it('should register a new provider', () => {
+        manager.registerProvider(new FooCompletionProvider());
+        expect(manager.getProviders().size).toBe(2);
+      });
+      it('should not register a provider twice', () => {
+        manager.registerProvider(new FooCompletionProvider());
+        jest.spyOn(console, 'warn').mockImplementation();
+        manager.registerProvider(new FooCompletionProvider());
+        expect(manager.getProviders().size).toBe(2);
+        expect(console.warn).toHaveBeenLastCalledWith(
+          expect.stringContaining(
+            'CompletionProvider:sample is already registered'
+          )
+        );
+      });
+    });
+
+    describe('#activateProvider()', () => {
+      it('should have jupyterlab provider by default', () => {
+        expect(manager['_activeProviders'].size).toBe(1);
+        expect(manager['_activeProviders'].has(DEFAULT_PROVIDER_ID)).toBe(true);
+      });
+      it('should activate requested provider', () => {
+        manager.registerProvider(new FooCompletionProvider());
+        manager.activateProvider([SAMPLE_PROVIDER_ID]);
+        expect(manager['_activeProviders'].size).toBe(1);
+        expect(manager['_activeProviders'].has(DEFAULT_PROVIDER_ID)).toBe(
+          false
+        );
+        expect(manager['_activeProviders'].has(SAMPLE_PROVIDER_ID)).toBe(true);
+      });
+      it('should activate multiple providers', () => {
+        manager.registerProvider(new FooCompletionProvider());
+        manager.activateProvider([SAMPLE_PROVIDER_ID, DEFAULT_PROVIDER_ID]);
+        expect(manager['_activeProviders'].size).toBe(2);
+        expect(manager['_activeProviders'].has(DEFAULT_PROVIDER_ID)).toBe(true);
+        expect(manager['_activeProviders'].has(SAMPLE_PROVIDER_ID)).toBe(true);
+      });
+      it('should skip unavailable providers', () => {
+        manager.registerProvider(new FooCompletionProvider());
+        manager.activateProvider(['randomId']);
+        expect(manager['_activeProviders'].size).toBe(2);
+        expect(manager['_activeProviders'].has(DEFAULT_PROVIDER_ID)).toBe(true);
+        expect(manager['_activeProviders'].has('randomId')).toBe(false);
+      });
+    });
+
+    describe('#updateCompleter()', () => {
+      let completerContext: ICompletionContext;
+      let widget: NotebookPanel;
+      beforeEach(() => {
+        const context = contextFactory();
+        widget = NBTestUtils.createNotebookPanel(context);
+        completerContext = { widget };
+      });
+
+      it('should create a new handler for the notebook panel', async () => {
+        await manager.updateCompleter(completerContext);
+        expect(manager['_panelHandlers'].has(widget.id)).toBe(true);
+      });
+
+      it('should update the handler of a widget', async () => {
+        await manager.updateCompleter(completerContext);
+        const cell = new Cell({
+          contentFactory: NBTestUtils.createBaseCellFactory(),
+          model: new TestCellModel({
+            sharedModel: createStandaloneCell({ cell_type: 'code' })
+          }),
+          placeholder: false
+        });
+        const newCompleterContext = {
+          editor: cell.editor,
+          session: widget.sessionContext.session,
+          widget
+        };
+        const handler = manager['_panelHandlers'].get(widget.id);
+        manager.updateCompleter(newCompleterContext).catch(console.error);
+        expect(handler.editor).toBe(newCompleterContext.editor);
+      });
+
+      it('should update renderer if providers changed', async () => {
+        // create the completer
+        await manager.updateCompleter(completerContext);
+        const handler = manager['_panelHandlers'].get(
+          widget.id
+        ) as CompletionHandler;
+        // no custom renderer shall be set at this point
+        expect(handler.completer.renderer).not.toBeInstanceOf(CustomRenderer);
+
+        // change providers
+        const provider = new FooCompletionProvider();
+        manager.registerProvider(provider);
+        manager.activateProvider([provider.identifier]);
+
+        // update after providers changed
+        await manager.updateCompleter(completerContext);
+        expect(handler.completer.renderer).toBeInstanceOf(CustomRenderer);
+      });
+
+      it('should update model if providers changed', async () => {
+        // create the completer
+        await manager.updateCompleter(completerContext);
+        const handler = manager['_panelHandlers'].get(
+          widget.id
+        ) as CompletionHandler;
+        // no custom model shall be set at this point
+        expect(handler.completer.model).not.toBeInstanceOf(
+          CustomCompleterModel
+        );
+
+        // change providers
+        const provider = new FooCompletionProvider();
+        manager.registerProvider(provider);
+        manager.activateProvider([provider.identifier]);
+
+        // update after providers changed
+        await manager.updateCompleter(completerContext);
+        expect(handler.completer.model).toBeInstanceOf(CustomCompleterModel);
+      });
+    });
+  });
+});
diff --git a/packages/metapackage/test/completer/reconciliator.spec.ts b/packages/metapackage/test/completer/reconciliator.spec.ts
new file mode 100644
index 000000000000..b53cf799a21a
--- /dev/null
+++ b/packages/metapackage/test/completer/reconciliator.spec.ts
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  CompletionHandler,
+  ICompletionContext,
+  ICompletionProvider,
+  ProviderReconciliator
+} from '@jupyterlab/completer';
+import { Context } from '@jupyterlab/docregistry';
+import { INotebookModel, NotebookModelFactory } from '@jupyterlab/notebook';
+import { ServiceManager } from '@jupyterlab/services';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
+
+function contextFactory(): Context<INotebookModel> {
+  const serviceManager = new ServiceManager({ standby: 'never' });
+  const factory = new NotebookModelFactory();
+  const context = new Context({
+    manager: serviceManager,
+    factory,
+    path: 'foo.ipynb',
+    kernelPreference: {
+      shouldStart: false,
+      canStart: false,
+      shutdownOnDispose: true,
+      name: 'default'
+    }
+  });
+  return context;
+}
+const widget = NBTestUtils.createNotebookPanel(contextFactory());
+
+const SAMPLE_PROVIDER_ID = 'CompletionProvider:sample';
+const DEFAULT_DELAY = 0;
+const DEFAULT_REPLY = {
+  start: 3,
+  end: 3,
+  items: [
+    { label: 'fooModule', type: 'module' },
+    { label: 'barFunction', type: 'function' }
+  ]
+};
+
+class FooCompletionProvider implements ICompletionProvider {
+  constructor(
+    protected options: {
+      reply?: CompletionHandler.ICompletionItemsReply;
+      delay?: number;
+      reject?: boolean;
+    } = {}
+  ) {
+    // no-op
+  }
+  identifier: string = SAMPLE_PROVIDER_ID;
+  renderer = null;
+  async fetch(
+    request: CompletionHandler.IRequest,
+    context: ICompletionContext
+  ): Promise<CompletionHandler.ICompletionItemsReply> {
+    await new Promise(r => setTimeout(r, this.options.delay ?? DEFAULT_DELAY));
+    if (this.options.reject) {
+      return Promise.reject();
+    } else {
+      return Promise.resolve(this.options.reply ?? DEFAULT_REPLY);
+    }
+  }
+  async isApplicable(context: ICompletionContext): Promise<boolean> {
+    return true;
+  }
+  shouldShowContinuousHint(completerIsVisible: boolean, changed: any) {
+    return true;
+  }
+}
+
+const defaultOptions = {
+  context: { widget },
+  timeout: 1000
+};
+
+describe('completer/reconciliator', () => {
+  describe('ProviderReconciliator', () => {
+    describe('#constructor()', () => {
+      it('should create a provider reconciliator', () => {
+        const reconciliator = new ProviderReconciliator({
+          context: { widget },
+          providers: [],
+          timeout: 0
+        });
+        expect(reconciliator).toBeInstanceOf(ProviderReconciliator);
+      });
+    });
+    describe('#fetch()', () => {
+      it('should call `fetch` of all providers', async () => {
+        const mock = jest.fn();
+        mock.mockResolvedValue({ items: [] });
+        const fooProvider1 = new FooCompletionProvider();
+        fooProvider1.fetch = mock;
+        const fooProvider2 = new FooCompletionProvider();
+        fooProvider2.fetch = mock;
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [fooProvider1, fooProvider2]
+        });
+        await reconciliator.fetch({ offset: 0, text: '' });
+        expect(fooProvider1.fetch).toHaveBeenCalled();
+        expect(fooProvider2.fetch).toHaveBeenCalled();
+      });
+      it('should de-duplicate completions from multiple providers', async () => {
+        const provider1 = new FooCompletionProvider();
+        const provider2 = new FooCompletionProvider();
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [provider1, provider2]
+        });
+        const result = await reconciliator.fetch({ offset: 0, text: '' });
+        expect(result).toEqual(DEFAULT_REPLY);
+      });
+      it('should de-duplicate by insert text if labels differ', async () => {
+        const reply1 = {
+          start: 3,
+          end: 3,
+          items: [
+            { label: 'function1()', insertText: 'function1' },
+            { label: 'function2()', insertText: 'function2' }
+          ]
+        };
+        const reply2 = {
+          start: 3,
+          end: 3,
+          items: [
+            { label: 'function1', insertText: 'function1' },
+            { label: 'function2', insertText: 'function2' }
+          ]
+        };
+        const provider1 = new FooCompletionProvider({ reply: reply1 });
+        const provider2 = new FooCompletionProvider({ reply: reply2 });
+        let reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [provider1, provider2]
+        });
+        const request = { offset: 0, text: '' };
+        let result = await reconciliator.fetch(request);
+        expect(result).toEqual(reply1);
+        reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [provider2, provider1]
+        });
+        result = await reconciliator.fetch(request);
+        expect(result).toEqual(reply2);
+      });
+      it('should ignore flanking whitespaces for de-duplication', async () => {
+        const replyWithSpace = {
+          start: 3,
+          end: 3,
+          items: [{ label: 'import', insertText: 'import ' }]
+        };
+        const replyWithoutSpace = {
+          start: 3,
+          end: 3,
+          items: [{ label: 'import', insertText: 'import' }]
+        };
+        const provider1 = new FooCompletionProvider({ reply: replyWithSpace });
+        const provider2 = new FooCompletionProvider({
+          reply: replyWithoutSpace
+        });
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [provider1, provider2]
+        });
+        const result = await reconciliator.fetch({ offset: 0, text: '' });
+        expect(result).toEqual(replyWithSpace);
+      });
+      it('should return completions even if one of providers fails', async () => {
+        const provider1 = new FooCompletionProvider();
+        const provider2 = new FooCompletionProvider({ reject: true });
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [provider1, provider2]
+        });
+        const result = await reconciliator.fetch({ offset: 0, text: '' });
+        expect(result).toEqual(DEFAULT_REPLY);
+      });
+      it('should include `resolve` in reply items', async () => {
+        const fooProvider1 = new FooCompletionProvider();
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [fooProvider1]
+        });
+        const res = await reconciliator.fetch({ offset: 0, text: '' });
+        expect(res!['items']).toEqual([
+          { label: 'fooModule', resolve: undefined, type: 'module' },
+          { label: 'barFunction', resolve: undefined, type: 'function' }
+        ]);
+      });
+      it('should reject slow fetch request', async () => {
+        const fooProvider1 = new FooCompletionProvider({ delay: 500 });
+        const reconciliator = new ProviderReconciliator({
+          context: { widget },
+          providers: [fooProvider1],
+          timeout: 200
+        });
+        const res = await reconciliator.fetch({ offset: 0, text: '' });
+        expect(res).toEqual(null);
+      });
+    });
+    describe('#shouldShowContinuousHint()', () => {
+      it('should check the `shouldShowContinuousHint` of the first provider', async () => {
+        const fooProvider1 = new FooCompletionProvider();
+        fooProvider1.shouldShowContinuousHint = jest.fn();
+        const fooProvider2 = new FooCompletionProvider();
+        fooProvider2.shouldShowContinuousHint = jest.fn();
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [fooProvider1, fooProvider2]
+        });
+        await reconciliator.shouldShowContinuousHint(true, null as any);
+        expect(fooProvider1.shouldShowContinuousHint).toHaveBeenCalledTimes(1);
+        expect(fooProvider2.shouldShowContinuousHint).toHaveBeenCalledTimes(0);
+      });
+    });
+    describe('#applicableProviders()', () => {
+      it('should call `isApplicable` of all providers', async () => {
+        const fooProvider1 = new FooCompletionProvider();
+        const spy1 = jest.spyOn(fooProvider1, 'isApplicable');
+        const fooProvider2 = new FooCompletionProvider();
+        const spy2 = jest.spyOn(fooProvider2, 'isApplicable');
+        const reconciliator = new ProviderReconciliator({
+          ...defaultOptions,
+          providers: [fooProvider1, fooProvider2]
+        });
+        const applicableProvides = await reconciliator['applicableProviders']();
+        expect(spy1).toHaveBeenCalledTimes(1);
+        expect(spy2).toHaveBeenCalledTimes(1);
+        expect(applicableProvides).toEqual(
+          expect.arrayContaining([fooProvider1, fooProvider2])
+        );
+        spy1.mockRestore();
+        spy2.mockRestore();
+      });
+    });
+  });
+});
diff --git a/packages/completer/test/widget.spec.ts b/packages/metapackage/test/completer/widget.spec.ts
similarity index 55%
rename from packages/completer/test/widget.spec.ts
rename to packages/metapackage/test/completer/widget.spec.ts
index dcd6bf27f2b0..66a021849ef6 100644
--- a/packages/completer/test/widget.spec.ts
+++ b/packages/metapackage/test/completer/widget.spec.ts
@@ -2,13 +2,14 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
-import { CodeMirrorEditor } from '@jupyterlab/codemirror';
+import { CodeMirrorEditor, ybinding } from '@jupyterlab/codemirror';
 import {
   Completer,
   CompleterModel,
   CompletionHandler
 } from '@jupyterlab/completer';
-import { framePromise, simulate, sleep } from '@jupyterlab/testutils';
+import { YFile } from '@jupyter/ydoc';
+import { framePromise, simulate, sleep } from '@jupyterlab/testing';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Panel, Widget } from '@lumino/widgets';
 
@@ -23,29 +24,49 @@ const DOC_PANEL_CLASS = 'jp-Completer-docpanel';
 const ACTIVE_CLASS = 'jp-mod-active';
 
 function createEditorWidget(): CodeEditorWrapper {
-  const model = new CodeEditor.Model();
+  const model = new CodeEditor.Model({ sharedModel: new YFile() });
   const factory = (options: CodeEditor.IOptions) => {
+    const m = options.model.sharedModel as any;
+    options.extensions = [
+      ...(options.extensions ?? []),
+      ybinding({ ytext: m.ysource })
+    ];
     return new CodeMirrorEditor(options);
   };
   return new CodeEditorWrapper({ factory, model });
 }
 
+/**
+ * jsdom mock for getBoundingClientRect returns zeros for all fields,
+ * see https://github.com/jsdom/jsdom/issues/653. We can do better,
+ * and need to do better to get meaningful tests for rendering.
+ */
+function betterGetBoundingClientRectMock() {
+  const style = window.getComputedStyle(this);
+  const top = parseFloat(style.top) || 0;
+  const left = parseFloat(style.left) || 0;
+  const dimensions = {
+    width: parseFloat(style.width) || parseFloat(style.minWidth) || 0,
+    height: parseFloat(style.height) || parseFloat(style.minHeight) || 0,
+    top,
+    left,
+    x: left,
+    y: top,
+    bottom: 0,
+    right: 0
+  };
+  return {
+    ...dimensions,
+    toJSON: () => dimensions
+  };
+}
+
 class CustomRenderer extends Completer.Renderer {
   createCompletionItemNode(
     item: CompletionHandler.ICompletionItem,
     orderedTypes: string[]
   ): HTMLLIElement {
-    let li = super.createCompletionItemNode!(item, orderedTypes);
-    li.classList.add(TEST_ITEM_CLASS);
-    return li;
-  }
-
-  createItemNode(
-    item: Completer.IItem,
-    typeMap: Completer.TypeMap,
-    orderedTypes: string[]
-  ): HTMLLIElement {
-    const li = super.createItemNode(item, typeMap, orderedTypes);
+    let li = super.createCompletionItemNode(item, orderedTypes);
     li.classList.add(TEST_ITEM_CLASS);
     return li;
   }
@@ -53,7 +74,7 @@ class CustomRenderer extends Completer.Renderer {
   createDocumentationNode(
     item: CompletionHandler.ICompletionItem
   ): HTMLElement {
-    const element = super.createDocumentationNode!(item);
+    const element = super.createDocumentationNode(item);
     element.classList.add(TEST_DOC_CLASS);
     return element;
   }
@@ -78,10 +99,47 @@ class LogWidget extends Completer {
     super.onUpdateRequest(msg);
     this.methods.push('onUpdateRequest');
   }
+
+  protected onModelQueryChanged(
+    model: Completer.IModel,
+    queryChange: Completer.IQueryChange
+  ): void {
+    super.onModelQueryChanged(model, queryChange);
+    this.methods.push(`onModelQueryChanged:${queryChange.origin}`);
+  }
+
+  public get sizeCache() {
+    return super.sizeCache;
+  }
 }
 
 describe('completer/widget', () => {
   describe('Completer', () => {
+    beforeAll(() => {
+      const style = document.createElement('style');
+      style.innerHTML = `
+        .jp-Completer-list {
+          overflow-y: scroll;
+          overflow-x: auto;
+          max-height: 300px;
+          min-height: 20px;
+          width: 100%;
+        }
+        .jp-Completer-docpanel {
+          width: 400px;
+          overflow: scroll;
+        }
+        .jp-Completer-item {
+          box-sizing: border-box;
+          height: 20px;
+          min-width: 150px;
+          display: grid;
+          grid-template-columns: min-content 1fr min-content;
+        }
+        `;
+      document.head.appendChild(style);
+    });
+
     describe('#constructor()', () => {
       it('should create a completer widget', () => {
         const widget = new Completer({ editor: null });
@@ -101,198 +159,142 @@ describe('completer/widget', () => {
         expect(widget.model).toBe(options.model);
       });
 
-      it('should accept options with a renderer', () => {
-        const options: Completer.IOptions = {
+      it('should accept options with a renderer', async () => {
+        let options: Completer.IOptions = {
           editor: null,
           model: new CompleterModel(),
           renderer: new CustomRenderer()
         };
-        options.model!.setOptions(['foo', 'bar']);
+        options.model!.setCompletionItems([
+          { label: 'foo', documentation: 'foo does bar' },
+          { label: 'bar' }
+        ]);
 
-        const widget = new Completer(options);
+        let widget = new Completer(options);
         expect(widget).toBeInstanceOf(Completer);
+        widget.showDocsPanel = true;
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-        const items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
+        let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
         expect(items).toHaveLength(2);
         expect(Array.from(items[0].classList)).toEqual(
           expect.arrayContaining([TEST_ITEM_CLASS])
         );
+        // Since the document is lazy loaded, wait a tick to allow the
+        // event loop remove the loading animation.
+        await new Promise(r => setTimeout(r, 10));
+        let panel = widget.node.querySelector(`.${DOC_PANEL_CLASS}`)!;
+        expect(panel.children).toHaveLength(1);
+        expect(Array.from(panel.firstElementChild!.classList)).toEqual(
+          expect.arrayContaining([TEST_DOC_CLASS])
+        );
       });
-
-      it('should accept completion items with a renderer', () => {
+      it('should hide document panel', async () => {
         let options: Completer.IOptions = {
           editor: null,
           model: new CompleterModel(),
           renderer: new CustomRenderer()
         };
-        options.model!.setCompletionItems!([
-          { label: 'foo', documentation: 'foo does bar' },
-          { label: 'bar' }
+        options.model!.setCompletionItems([
+          { label: 'foo', documentation: 'foo does bar' }
         ]);
 
         let widget = new Completer(options);
-        expect(widget).toBeInstanceOf(Completer);
+        widget.showDocsPanel = false;
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        let panel = widget.node.querySelector(`.${DOC_PANEL_CLASS}`)!;
+        expect(panel).toBeNull();
+      });
 
-        let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-        expect(items).toHaveLength(2);
-        expect(Array.from(items[0].classList)).toEqual(
-          expect.arrayContaining([TEST_ITEM_CLASS])
-        );
+      it('should resolve item from creating widget.', () => {
+        const options: Completer.IOptions = {
+          editor: null,
+          model: new CompleterModel()
+        };
+        options.model!.setCompletionItems([{ label: 'foo' }]);
+        options.model!.resolveItem = jest.fn();
+        const widget = new Completer(options);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        expect(options.model!.resolveItem).toHaveBeenCalledTimes(1);
+      });
 
-        let panel = widget.node.querySelector(`.${DOC_PANEL_CLASS}`)!;
-        expect(panel.children).toHaveLength(1);
-        expect(Array.from(panel.firstElementChild!.classList)).toEqual(
-          expect.arrayContaining([TEST_DOC_CLASS])
-        );
+      it('should resolve item from model on switching item.', () => {
+        const options: Completer.IOptions = {
+          editor: null,
+          model: new CompleterModel()
+        };
+        options.model!.setCompletionItems([{ label: 'foo' }]);
+        options.model!.resolveItem = jest.fn();
+        const widget = new Completer(options);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        widget['_cycle']('down');
+        expect(options.model!.resolveItem).toHaveBeenCalledTimes(2);
       });
     });
 
     describe('#selected', () => {
-      it('should emit a signal when an item is selected', () => {
-        const anchor = createEditorWidget();
-        const options: Completer.IOptions = {
+      it('should emit the insert text if it is present', () => {
+        let anchor = createEditorWidget();
+        let options: Completer.IOptions = {
           editor: anchor.editor,
           model: new CompleterModel()
         };
         let value = '';
-        const listener = (sender: any, selected: string) => {
+        let listener = (sender: any, selected: string) => {
           value = selected;
         };
-        options.model!.setOptions(['foo', 'bar']);
+        options.model!.setCompletionItems([
+          { label: 'bar label', insertText: 'bar' },
+          { label: 'foo label' }
+        ]);
         Widget.attach(anchor, document.body);
 
-        const widget = new Completer(options);
+        let widget = new Completer(options);
 
         widget.selected.connect(listener);
         Widget.attach(widget, document.body);
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
         expect(value).toBe('');
         widget.selectActive();
-        expect(value).toBe('foo');
+        expect(value).toBe('bar');
         widget.dispose();
         anchor.dispose();
       });
 
-      describe('#selected with completion items', () => {
-        it('should emit the insert text if it is present', () => {
-          let anchor = createEditorWidget();
-          let options: Completer.IOptions = {
-            editor: anchor.editor,
-            model: new CompleterModel()
-          };
-          let value = '';
-          let listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          options.model!.setCompletionItems!([
-            { label: 'foo', insertText: 'bar' },
-            { label: 'baz' }
-          ]);
-          Widget.attach(anchor, document.body);
-
-          let widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(value).toBe('');
-          widget.selectActive();
-          expect(value).toBe('bar');
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should emit the label if insert text is not present', () => {
-          let anchor = createEditorWidget();
-          let options: Completer.IOptions = {
-            editor: anchor.editor,
-            model: new CompleterModel()
-          };
-          let value = '';
-          let listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          options.model!.setCompletionItems!([
-            { label: 'foo' },
-            { label: 'baz' }
-          ]);
-          Widget.attach(anchor, document.body);
-
-          let widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(value).toBe('');
-          widget.selectActive();
-          expect(value).toBe('foo');
-          widget.dispose();
-          anchor.dispose();
-        });
-      });
-    });
-
-    describe('#visibilityChanged', () => {
-      it('should emit a signal when completer visibility changes', async () => {
-        const panel = new Panel();
-        const code = createEditorWidget();
-        const editor = code.editor;
-        const model = new CompleterModel();
-        let called = false;
-
-        editor.model.value.text = 'a';
-        panel.node.style.position = 'absolute';
-        panel.node.style.top = '0px';
-        panel.node.style.left = '0px';
-        panel.node.style.height = '1000px';
-        code.node.style.height = '900px';
-        panel.addWidget(code);
-        Widget.attach(panel, document.body);
-        panel.node.scrollTop = 0;
-        document.body.scrollTop = 0;
-
-        const position = code.editor.getPositionAt(1)!;
-
-        editor.setCursorPosition(position);
-
-        const request: Completer.ITextState = {
-          column: position.column,
-          lineHeight: editor.lineHeight,
-          charWidth: editor.charWidth,
-          line: position.line,
-          text: 'a'
+      it('should emit the label if insert text is not present', () => {
+        let anchor = createEditorWidget();
+        let options: Completer.IOptions = {
+          editor: anchor.editor,
+          model: new CompleterModel()
+        };
+        let value = '';
+        let listener = (sender: any, selected: string) => {
+          value = selected;
         };
+        options.model!.setCompletionItems([{ label: 'foo' }, { label: 'baz' }]);
+        Widget.attach(anchor, document.body);
 
-        model.original = request;
-        model.cursor = { start: 0, end: 1 };
-        model.setOptions(['abc', 'abd', 'abe', 'abi']);
+        let widget = new Completer(options);
 
-        const widget = new Completer({ model, editor: code.editor });
-        widget.hide();
-        expect(called).toBe(false);
-        widget.visibilityChanged.connect(() => {
-          called = true;
-        });
+        widget.selected.connect(listener);
         Widget.attach(widget, document.body);
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-        await framePromise();
-        expect(called).toBe(true);
+        expect(value).toBe('');
+        widget.selectActive();
+        expect(value).toBe('foo');
         widget.dispose();
-        code.dispose();
-        panel.dispose();
+        anchor.dispose();
       });
+    });
 
-      it('should emit a signal when completion items completer visibility changes', async () => {
+    describe('#visibilityChanged', () => {
+      it('should emit a signal when completer visibility changes', async () => {
         let panel = new Panel();
         let code = createEditorWidget();
         let editor = code.editor;
         let model = new CompleterModel();
         let called = false;
 
-        editor.model.value.text = 'a';
+        editor.model.sharedModel.setSource('a');
         panel.node.style.position = 'absolute';
         panel.node.style.top = '0px';
         panel.node.style.left = '0px';
@@ -309,15 +311,13 @@ describe('completer/widget', () => {
 
         let request: Completer.ITextState = {
           column: position.column,
-          lineHeight: editor.lineHeight,
-          charWidth: editor.charWidth,
           line: position.line,
           text: 'a'
         };
 
         model.original = request;
         model.cursor = { start: 0, end: 1 };
-        model.setCompletionItems!([
+        model.setCompletionItems([
           { label: 'abc' },
           { label: 'abd' },
           { label: 'abe' },
@@ -406,37 +406,13 @@ describe('completer/widget', () => {
 
     describe('#reset()', () => {
       it('should reset the completer widget', () => {
-        const anchor = createEditorWidget();
-        const model = new CompleterModel();
-        const options: Completer.IOptions = {
-          editor: anchor.editor,
-          model
-        };
-        model.setOptions(['foo', 'bar'], { foo: 'instance', bar: 'function' });
-        Widget.attach(anchor, document.body);
-
-        const widget = new Completer(options);
-
-        Widget.attach(widget, document.body);
-        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(widget.isHidden).toBe(false);
-        expect(model.options).toBeTruthy();
-        widget.reset();
-        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(widget.isHidden).toBe(true);
-        expect(model.options().next()).toBeUndefined();
-        widget.dispose();
-        anchor.dispose();
-      });
-
-      it('should reset the completer widget and its completion items', () => {
         let anchor = createEditorWidget();
         let model = new CompleterModel();
         let options: Completer.IOptions = {
           editor: anchor.editor,
           model
         };
-        model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+        model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
         Widget.attach(anchor, document.body);
 
         let widget = new Completer(options);
@@ -444,14 +420,14 @@ describe('completer/widget', () => {
         Widget.attach(widget, document.body);
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
         expect(widget.isHidden).toBe(false);
-        expect(model.completionItems!()).toEqual([
+        expect(model.completionItems()).toEqual([
           { label: 'foo' },
           { label: 'bar' }
         ]);
         widget.reset();
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
         expect(widget.isHidden).toBe(true);
-        expect(model.completionItems!()).toEqual([]);
+        expect(model.completionItems()).toEqual([]);
         widget.dispose();
         anchor.dispose();
       });
@@ -473,40 +449,13 @@ describe('completer/widget', () => {
 
       describe('keydown', () => {
         it('should reset if keydown is outside anchor', () => {
-          const model = new CompleterModel();
-          const anchor = createEditorWidget();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          model.setOptions(['foo', 'bar'], {
-            foo: 'instance',
-            bar: 'function'
-          });
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(widget.isHidden).toBe(false);
-          expect(model.options).toBeTruthy();
-          simulate(document.body, 'keydown', { keyCode: 70 }); // F
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(widget.isHidden).toBe(true);
-          expect(model.options().next()).toBeUndefined();
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should reset completion items if keydown is outside anchor', () => {
           let model = new CompleterModel();
           let anchor = createEditorWidget();
           let options: Completer.IOptions = {
             editor: anchor.editor,
             model
           };
-          model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+          model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
           Widget.attach(anchor, document.body);
 
           let widget = new Completer(options);
@@ -514,40 +463,40 @@ describe('completer/widget', () => {
           Widget.attach(widget, document.body);
           MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
           expect(widget.isHidden).toBe(false);
-          expect(model.completionItems!()).toEqual([
+          expect(model.completionItems()).toEqual([
             { label: 'foo' },
             { label: 'bar' }
           ]);
           simulate(document.body, 'keydown', { keyCode: 70 }); // F
           MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
           expect(widget.isHidden).toBe(true);
-          expect(model.completionItems!()).toEqual([]);
+          expect(model.completionItems()).toEqual([]);
           widget.dispose();
           anchor.dispose();
         });
 
         it('should select the item below and wrap to top past last (arrow keys)', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
+          let anchor = createEditorWidget();
+          let model = new CompleterModel();
+          let options: Completer.IOptions = {
             editor: anchor.editor,
             model
           };
-          model.setOptions(['foo', 'bar', 'baz'], {
-            foo: 'instance',
-            bar: 'function'
-          });
+          model.setCompletionItems([
+            { label: 'foo' },
+            { label: 'bar' },
+            { label: 'baz' }
+          ]);
           Widget.attach(anchor, document.body);
 
-          const widget = new Completer(options);
-          const target = document.createElement('div');
+          let widget = new Completer(options);
+          let target = document.createElement('div');
 
           anchor.node.appendChild(target);
           Widget.attach(widget, document.body);
           MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
 
-          const items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-
+          let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
           expect(Array.from(items[0].classList)).toEqual(
             expect.arrayContaining([ACTIVE_CLASS])
           );
@@ -592,27 +541,27 @@ describe('completer/widget', () => {
         });
 
         it('should select the item below and wrap to top past last (tab)', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
+          let anchor = createEditorWidget();
+          let model = new CompleterModel();
+          let options: Completer.IOptions = {
             editor: anchor.editor,
             model
           };
-          model.setOptions(['foo', 'bar', 'baz'], {
-            foo: 'instance',
-            bar: 'function'
-          });
+          model.setCompletionItems([
+            { label: 'foo' },
+            { label: 'bar' },
+            { label: 'baz' }
+          ]);
           Widget.attach(anchor, document.body);
 
-          const widget = new Completer(options);
-          const target = document.createElement('div');
+          let widget = new Completer(options);
+          let target = document.createElement('div');
 
           anchor.node.appendChild(target);
           Widget.attach(widget, document.body);
           MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
 
-          const items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-
+          let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
           expect(Array.from(items[0].classList)).toEqual(
             expect.arrayContaining([ACTIVE_CLASS])
           );
@@ -656,14 +605,14 @@ describe('completer/widget', () => {
           anchor.dispose();
         });
 
-        it('should select the completion item below and wrap to top past last (arrow keys)', () => {
+        it('should select the item above and wrap to top past first (arrow keys)', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
             editor: anchor.editor,
             model
           };
-          model.setCompletionItems!([
+          model.setCompletionItems([
             { label: 'foo' },
             { label: 'bar' },
             { label: 'baz' }
@@ -671,13 +620,12 @@ describe('completer/widget', () => {
           Widget.attach(anchor, document.body);
 
           let widget = new Completer(options);
-          let target = document.createElement('div');
 
-          anchor.node.appendChild(target);
           Widget.attach(widget, document.body);
           MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
 
           let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
+
           expect(Array.from(items[0].classList)).toEqual(
             expect.arrayContaining([ACTIVE_CLASS])
           );
@@ -687,7 +635,7 @@ describe('completer/widget', () => {
           expect(Array.from(items[2].classList)).toEqual(
             expect.not.arrayContaining([ACTIVE_CLASS])
           );
-          simulate(target, 'keydown', { keyCode: 40 }); // Down
+          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
           expect(Array.from(items[0].classList)).toEqual(
             expect.not.arrayContaining([ACTIVE_CLASS])
           );
@@ -697,7 +645,7 @@ describe('completer/widget', () => {
           expect(Array.from(items[2].classList)).toEqual(
             expect.not.arrayContaining([ACTIVE_CLASS])
           );
-          simulate(target, 'keydown', { keyCode: 40 }); // Down
+          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
           expect(Array.from(items[0].classList)).toEqual(
             expect.not.arrayContaining([ACTIVE_CLASS])
           );
@@ -707,312 +655,17 @@ describe('completer/widget', () => {
           expect(Array.from(items[2].classList)).toEqual(
             expect.arrayContaining([ACTIVE_CLASS])
           );
-          simulate(target, 'keydown', { keyCode: 40 }); // Down
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should select the completion item below and wrap to top past last (tab)', () => {
-          let anchor = createEditorWidget();
-          let model = new CompleterModel();
-          let options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          model.setCompletionItems!([
-            { label: 'foo' },
-            { label: 'bar' },
-            { label: 'baz' }
-          ]);
-          Widget.attach(anchor, document.body);
-
-          let widget = new Completer(options);
-          let target = document.createElement('div');
-
-          anchor.node.appendChild(target);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-          let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(target, 'keydown', { keyCode: 9 }); // Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(target, 'keydown', { keyCode: 9 }); // Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(target, 'keydown', { keyCode: 9 }); // Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should select the item above and wrap to bottom past first (arrow keys)', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          model.setOptions(['foo', 'bar', 'baz'], {
-            foo: 'instance',
-            bar: 'function'
-          });
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-          const items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should select the item above and wrap to bottom past first (tab)', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          model.setOptions(['foo', 'bar', 'baz'], {
-            foo: 'instance',
-            bar: 'function'
-          });
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-          const items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 9, shiftKey: true }); // Shift + Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 9, shiftKey: true }); // Shift + Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 9, shiftKey: true }); // Shift + Tab
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should select the completion item above and wrap to top past first (arrow keys)', () => {
-          let anchor = createEditorWidget();
-          let model = new CompleterModel();
-          let options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          model.setCompletionItems!([
-            { label: 'foo' },
-            { label: 'bar' },
-            { label: 'baz' }
-          ]);
-          Widget.attach(anchor, document.body);
-
-          let widget = new Completer(options);
-
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-          let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
-
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 40 }); // Down
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
-          expect(Array.from(items[0].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[1].classList)).toEqual(
-            expect.arrayContaining([ACTIVE_CLASS])
-          );
-          expect(Array.from(items[2].classList)).toEqual(
-            expect.not.arrayContaining([ACTIVE_CLASS])
-          );
-          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
+          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
+          expect(Array.from(items[0].classList)).toEqual(
+            expect.not.arrayContaining([ACTIVE_CLASS])
+          );
+          expect(Array.from(items[1].classList)).toEqual(
+            expect.arrayContaining([ACTIVE_CLASS])
+          );
+          expect(Array.from(items[2].classList)).toEqual(
+            expect.not.arrayContaining([ACTIVE_CLASS])
+          );
+          simulate(anchor.node, 'keydown', { keyCode: 38 }); // Up
           expect(Array.from(items[0].classList)).toEqual(
             expect.arrayContaining([ACTIVE_CLASS])
           );
@@ -1036,14 +689,14 @@ describe('completer/widget', () => {
           anchor.dispose();
         });
 
-        it('should select the completion item above and wrap to top past first (tab)', () => {
+        it('should select the item above and wrap to top past first (tab)', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
             editor: anchor.editor,
             model
           };
-          model.setCompletionItems!([
+          model.setCompletionItems([
             { label: 'foo' },
             { label: 'bar' },
             { label: 'baz' }
@@ -1121,43 +774,6 @@ describe('completer/widget', () => {
         });
 
         it('should mark common subset on start and complete that subset on tab', async () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          let value = '';
-          const listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          model.setOptions(['fo', 'foo', 'foo', 'fooo'], {
-            foo: 'instance',
-            bar: 'function'
-          });
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          await framePromise();
-          const marked = widget.node.querySelectorAll(`.${ITEM_CLASS} mark`);
-          expect(Object.keys(value)).toHaveLength(0);
-          expect(marked).toHaveLength(4);
-          expect(marked[0].textContent).toBe('fo');
-          expect(marked[1].textContent).toBe('fo');
-          expect(marked[2].textContent).toBe('fo');
-          expect(marked[3].textContent).toBe('fo');
-          simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab key
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(value).toBe('fo');
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should mark common subset of completion items on start and complete that subset on tab', async () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
@@ -1168,7 +784,7 @@ describe('completer/widget', () => {
           let listener = (sender: any, selected: string) => {
             value = selected;
           };
-          model.setCompletionItems!([
+          model.setCompletionItems([
             { label: 'fo' },
             { label: 'foo' },
             { label: 'foo' },
@@ -1208,7 +824,7 @@ describe('completer/widget', () => {
         const listener = (sender: any, selected: string) => {
           value = selected;
         };
-        model.setCompletionItems!([{ label: 'foo' }]);
+        model.setCompletionItems([{ label: 'foo' }]);
         Widget.attach(anchor, document.body);
 
         const widget = new Completer(options);
@@ -1233,56 +849,22 @@ describe('completer/widget', () => {
         const listener = (sender: any, selected: string) => {
           value = selected;
         };
-        model.setCompletionItems!([{ label: 'foo', insertText: 'bar' }]);
+        model.setCompletionItems([{ label: 'foo', insertText: 'bar' }]);
         Widget.attach(anchor, document.body);
 
-        const widget = new Completer(options);
-
-        widget.selected.connect(listener);
-        Widget.attach(widget, document.body);
-        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab key
-        expect(value).toBe('bar');
-        widget.dispose();
-        anchor.dispose();
-      });
-
-      describe('pointerdown', () => {
-        it('should trigger a selected signal on pointer down', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          let value = '';
-          const listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          model.setOptions(['foo', 'bar', 'baz'], {
-            foo: 'instance',
-            bar: 'function'
-          });
-          model.query = 'b';
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-
-          const item = widget.node.querySelectorAll(`.${ITEM_CLASS} mark`)[1];
+        const widget = new Completer(options);
 
-          simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab key
-          expect(model.query).toBe('ba');
-          simulate(item, 'pointerdown');
-          expect(value).toBe('baz');
-          widget.dispose();
-          anchor.dispose();
-        });
+        widget.selected.connect(listener);
+        Widget.attach(widget, document.body);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        simulate(anchor.node, 'keydown', { keyCode: 9 }); // Tab key
+        expect(value).toBe('bar');
+        widget.dispose();
+        anchor.dispose();
+      });
 
-        it('should trigger a selected signal on pointer down of completion item', () => {
+      describe('pointerdown', () => {
+        it('should trigger a selected signal on pointer down', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
@@ -1293,7 +875,7 @@ describe('completer/widget', () => {
           let listener = (sender: any, selected: string) => {
             value = selected;
           };
-          model.setCompletionItems!([
+          model.setCompletionItems([
             { label: 'foo' },
             { label: 'bar' },
             { label: 'baz' }
@@ -1318,32 +900,6 @@ describe('completer/widget', () => {
         });
 
         it('should ignore nonstandard pointer clicks (e.g., right click)', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          let value = '';
-          const listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          model.setOptions(['foo', 'bar']);
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(value).toBe('');
-          simulate(widget.node, 'pointerdown', { button: 1 });
-          expect(value).toBe('');
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should ignore nonstandard pointer clicks (e.g., right click) on completion item', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
@@ -1354,7 +910,7 @@ describe('completer/widget', () => {
           let listener = (sender: any, selected: string) => {
             value = selected;
           };
-          model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+          model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
           Widget.attach(anchor, document.body);
 
           let widget = new Completer(options);
@@ -1370,32 +926,6 @@ describe('completer/widget', () => {
         });
 
         it('should ignore a pointer down that misses an item', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          let value = '';
-          const listener = (sender: any, selected: string) => {
-            value = selected;
-          };
-          model.setOptions(['foo', 'bar']);
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(value).toBe('');
-          simulate(widget.node, 'pointerdown');
-          expect(value).toBe('');
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should ignore a pointer down that misses a completion item', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
@@ -1406,7 +936,7 @@ describe('completer/widget', () => {
           let listener = (sender: any, selected: string) => {
             value = selected;
           };
-          model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+          model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
           Widget.attach(anchor, document.body);
 
           let widget = new Completer(options);
@@ -1422,32 +952,6 @@ describe('completer/widget', () => {
         });
 
         it('should hide widget if pointer down misses it', () => {
-          const anchor = createEditorWidget();
-          const model = new CompleterModel();
-          const options: Completer.IOptions = {
-            editor: anchor.editor,
-            model
-          };
-          const listener = (sender: any, selected: string) => {
-            // no op
-          };
-          model.setOptions(['foo', 'bar']);
-          Widget.attach(anchor, document.body);
-
-          const widget = new Completer(options);
-
-          widget.selected.connect(listener);
-          Widget.attach(widget, document.body);
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(widget.isHidden).toBe(false);
-          simulate(anchor.node, 'pointerdown');
-          MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-          expect(widget.isHidden).toBe(true);
-          widget.dispose();
-          anchor.dispose();
-        });
-
-        it('should hide completion items widget if pointer down misses it', () => {
           let anchor = createEditorWidget();
           let model = new CompleterModel();
           let options: Completer.IOptions = {
@@ -1457,7 +961,7 @@ describe('completer/widget', () => {
           let listener = (sender: any, selected: string) => {
             // no op
           };
-          model.setCompletionItems!([{ label: 'foo' }, { label: 'bar' }]);
+          model.setCompletionItems([{ label: 'foo' }, { label: 'bar' }]);
           Widget.attach(anchor, document.body);
 
           let widget = new Completer(options);
@@ -1485,7 +989,7 @@ describe('completer/widget', () => {
           code.node.style.height = '5000px';
           code.node.style.width = '400px';
           code.node.style.background = 'yellow';
-          editor.model.value.text = text;
+          editor.model.sharedModel.setSource(text);
 
           panel.node.style.background = 'red';
           panel.node.style.height = '2000px';
@@ -1499,7 +1003,6 @@ describe('completer/widget', () => {
 
           panel.addWidget(code);
           Widget.attach(panel, document.body);
-          editor.refresh();
 
           const position = code.editor.getPositionAt(text.length)!;
           const coords = code.editor.getCoordinateForPosition(position);
@@ -1508,15 +1011,18 @@ describe('completer/widget', () => {
 
           const request: Completer.ITextState = {
             column: position.column,
-            lineHeight: editor.lineHeight,
-            charWidth: editor.charWidth,
             line: position.line,
             text: 'a'
           };
 
           model.original = request;
           model.cursor = { start: text.length - 1, end: text.length };
-          model.setOptions(['abc', 'abd', 'abe', 'abi']);
+          model.setCompletionItems([
+            { label: 'abc' },
+            { label: 'abd' },
+            { label: 'abe' },
+            { label: 'abi' }
+          ]);
 
           const widget = new Completer({ model, editor: code.editor });
           Widget.attach(widget, document.body);
@@ -1537,117 +1043,380 @@ describe('completer/widget', () => {
     });
 
     describe('#onUpdateRequest()', () => {
-      it('should emit a selection if there is only one match', () => {
-        const anchor = createEditorWidget();
-        const model = new CompleterModel();
-        const coords = { left: 0, right: 0, top: 100, bottom: 120 };
-        const request: Completer.ITextState = {
+      it('should do nothing if a model does not exist', () => {
+        const widget = new LogWidget({ editor: null });
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        expect(widget.methods).toEqual(
+          expect.arrayContaining(['onUpdateRequest'])
+        );
+      });
+
+      it('should un-hide widget if multiple items are available', () => {
+        let anchor = createEditorWidget();
+        let model = new CompleterModel();
+        let request: Completer.ITextState = {
           column: 0,
-          lineHeight: 0,
-          charWidth: 0,
           line: 0,
-          coords: coords as CodeEditor.ICoordinate,
           text: 'f'
         };
 
-        let value = '';
-        const options: Completer.IOptions = {
-          editor: anchor.editor,
-          model
-        };
-        const listener = (sender: any, selected: string) => {
-          value = selected;
-        };
-
         Widget.attach(anchor, document.body);
         model.original = request;
-        model.setOptions(['foo']);
+        model.setCompletionItems([
+          { label: 'foo' },
+          { label: 'bar' },
+          { label: 'baz' }
+        ]);
 
-        const widget = new Completer(options);
-        widget.selected.connect(listener);
+        let widget = new Completer({
+          editor: anchor.editor,
+          model
+        });
+        widget.hide();
+        expect(widget.isHidden).toBe(true);
         Widget.attach(widget, document.body);
-
-        expect(value).toBe('');
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(value).toBe('foo');
+        expect(widget.isVisible).toBe(true);
         widget.dispose();
         anchor.dispose();
       });
 
-      it('should do nothing if a model does not exist', () => {
-        const widget = new LogWidget({ editor: null });
-        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(widget.methods).toEqual(
-          expect.arrayContaining(['onUpdateRequest'])
+      it('should pre-compute and cache dimensions when items are many', () => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
+        let anchor = createEditorWidget();
+        let model = new CompleterModel();
+
+        Widget.attach(anchor, document.body);
+        model.setCompletionItems(
+          Array.from({ length: 20 }, (_, i) => {
+            return { label: `candidate ${i}` };
+          })
         );
+
+        let widget = new LogWidget({
+          editor: anchor.editor,
+          model
+        });
+        Widget.attach(widget, document.body);
+        expect(widget.sizeCache).toBe(undefined);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        expect(widget.sizeCache).toEqual({
+          width: 150,
+          height: 300
+        });
+        widget.dispose();
+        expect(widget.sizeCache).toBe(undefined);
+        anchor.dispose();
       });
 
-      it('should un-hide widget if multiple options are available', () => {
-        const anchor = createEditorWidget();
-        const model = new CompleterModel();
-        const coords = { left: 0, right: 0, top: 100, bottom: 120 };
-        const request: Completer.ITextState = {
-          column: 0,
-          lineHeight: 0,
-          charWidth: 0,
-          line: 0,
-          coords: coords as CodeEditor.ICoordinate,
-          text: 'f'
-        };
+      it('should compute height based on number of items', () => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
+        let anchor = createEditorWidget();
+        let model = new CompleterModel();
 
-        const options: Completer.IOptions = {
+        Widget.attach(anchor, document.body);
+        model.setCompletionItems(
+          Array.from({ length: 3 }, (_, i) => {
+            return { label: `candidate ${i}` };
+          })
+        );
+
+        let widget = new LogWidget({
           editor: anchor.editor,
           model
-        };
+        });
+        Widget.attach(widget, document.body);
+        expect(widget.sizeCache).toBe(undefined);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        expect(widget.sizeCache).toEqual({
+          width: 150,
+          height: 3 * 20
+        });
+        widget.dispose();
+        expect(widget.sizeCache).toBe(undefined);
+        anchor.dispose();
+      });
+
+      it('should account for documentation panel width if shown', async () => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
+        let anchor = createEditorWidget();
+        let model = new CompleterModel();
 
         Widget.attach(anchor, document.body);
-        model.original = request;
-        model.setOptions(['foo', 'bar', 'baz']);
+        model.setCompletionItems(
+          Array.from({ length: 3 }, (_, i) => {
+            return { label: `candidate ${i}`, documentation: 'text' };
+          })
+        );
 
-        const widget = new Completer(options);
-        widget.hide();
-        expect(widget.isHidden).toBe(true);
+        let widget = new LogWidget({
+          editor: anchor.editor,
+          model
+        });
+        widget.showDocsPanel = true;
         Widget.attach(widget, document.body);
+        expect(widget.sizeCache).toBe(undefined);
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(widget.isVisible).toBe(true);
+        await framePromise();
+        expect(widget.sizeCache).toEqual({
+          width: 550, // 150 (items) + 400 (documentation panel)
+          height: 300
+        });
+        widget.showDocsPanel = false;
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        await framePromise();
+        expect(widget.sizeCache).toEqual({
+          width: 150,
+          height: 60 // 3* 20
+        });
         widget.dispose();
+        expect(widget.sizeCache).toBe(undefined);
         anchor.dispose();
       });
 
-      it('should un-hide widget if multiple completion items are available', () => {
+      it('should show/hide the documentation panel depending on documentation presence', async () => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
         let anchor = createEditorWidget();
         let model = new CompleterModel();
-        let coords = { left: 0, right: 0, top: 100, bottom: 120 };
-        let request: Completer.ITextState = {
-          column: 0,
-          lineHeight: 0,
-          charWidth: 0,
-          line: 0,
-          coords: coords as CodeEditor.ICoordinate,
-          text: 'f'
-        };
+        Widget.attach(anchor, document.body);
 
-        let options: Completer.IOptions = {
+        let widget = new LogWidget({
           editor: anchor.editor,
           model
+        });
+        widget.showDocsPanel = true;
+        Widget.attach(widget, document.body);
+
+        const expectedSizeNoDocs = {
+          width: 150, // (no documentation panel width here)
+          height: 20
+        };
+        const expectedSizeDocs = {
+          width: 550, // 150 (items) + 400 (documentation panel)
+          height: 300 // (min documentation panel height)
         };
 
+        // no documentation
+        model.setCompletionItems([{ label: 'test' }]);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        await framePromise();
+        expect(widget.sizeCache).toEqual(expectedSizeNoDocs);
+        let panel = widget.node.querySelector(
+          `.${DOC_PANEL_CLASS}`
+        ) as HTMLElement;
+        expect(panel.style.display).toBe('none');
+
+        // documentation
+        model.setCompletionItems([
+          { label: 'test', documentation: 'test doc' }
+        ]);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        await framePromise();
+        expect(widget.sizeCache).toEqual(expectedSizeDocs);
+        panel = widget.node.querySelector(`.${DOC_PANEL_CLASS}`) as HTMLElement;
+        expect(panel.style.display).toBe('');
+
+        // no documentation again
+        model.setCompletionItems([{ label: 'test' }]);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        await framePromise();
+        expect(widget.sizeCache).toEqual(expectedSizeNoDocs);
+        panel = widget.node.querySelector(`.${DOC_PANEL_CLASS}`) as HTMLElement;
+        expect(panel.style.display).toBe('none');
+      });
+
+      it('should render completions lazily in chunks', async () => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
+        let anchor = createEditorWidget();
+        let model = new CompleterModel();
+
         Widget.attach(anchor, document.body);
-        model.original = request;
-        model.setCompletionItems!([
-          { label: 'foo' },
-          { label: 'bar' },
-          { label: 'baz' }
+        model.setCompletionItems(
+          Array.from({ length: 30 }, (_, i) => {
+            return { label: `candidate ${i}` };
+          })
+        );
+
+        let widget = new Completer({
+          editor: anchor.editor,
+          model
+        });
+        Widget.attach(widget, document.body);
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+
+        // First "page":
+        //  - 300px/20px = 15 items at each "page",
+        //  - we add one item in case if height heuristic is inaccurate.
+        let items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
+        expect(items).toHaveLength(15 + 1);
+
+        // Second and consecutive pages will be rendered in chunks of size
+        // depending on performance, but not smaller than 5 at a time. This
+        // means we should get 30 items in no more than 3 frames.
+        let previousCount = 15 + 1;
+        for (let i = 0; i < 3; i++) {
+          await framePromise();
+          items = widget.node.querySelectorAll(`.${ITEM_CLASS}`);
+          expect(items.length).toBeGreaterThanOrEqual(
+            Math.min(previousCount + 5, 30)
+          );
+          previousCount = items.length;
+        }
+        expect(items).toHaveLength(30);
+      });
+    });
+
+    describe('#onModelQueryChanged()', () => {
+      let position: CodeEditor.IPosition;
+      let widget: LogWidget;
+      let model: CompleterModel;
+      let wrapper: CodeEditorWrapper;
+      const expectedSize = { width: 150, height: 300 };
+
+      beforeEach(() => {
+        window.HTMLElement.prototype.getBoundingClientRect =
+          betterGetBoundingClientRectMock;
+        wrapper = createEditorWidget();
+        model = new CompleterModel();
+        const editor = wrapper.editor;
+
+        editor.model.sharedModel.setSource('c');
+        position = editor.getPositionAt(1)!;
+
+        editor.setCursorPosition(position);
+
+        const original: Completer.ITextState = {
+          ...position,
+          text: 'c'
+        };
+        Widget.attach(wrapper, document.body);
+
+        model.original = original;
+        model.cursor = { start: 0, end: 1 };
+
+        model.setCompletionItems([
+          ...Array.from({ length: 20 }, (_, i) => {
+            return { label: `candidate ${i}` };
+          }),
+          ...Array.from({ length: 20 }, (_, i) => {
+            return { label: `candx ${i}` };
+          })
         ]);
 
-        let widget = new Completer(options);
-        widget.hide();
-        expect(widget.isHidden).toBe(true);
+        widget = new LogWidget({ editor, model });
         Widget.attach(widget, document.body);
         MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
-        expect(widget.isVisible).toBe(true);
+      });
+
+      afterEach(() => {
         widget.dispose();
-        anchor.dispose();
+        wrapper.dispose();
+      });
+
+      it('should not invalidate size cache if query change keeps situation the same', () => {
+        expect(widget.sizeCache).toEqual(expectedSize);
+        // Filtering which does not change the matching items.
+        const current: Completer.ITextState = {
+          ...position,
+          text: 'cand'
+        };
+        expect(widget.methods).not.toContain(
+          'onModelQueryChanged:editorUpdate'
+        );
+        model.handleTextChange(current);
+        expect(widget.methods).toContain('onModelQueryChanged:editorUpdate');
+        expect(widget.sizeCache).toEqual(expectedSize);
+      });
+
+      it('should invalidate size cache if query change leads to change in number of items', () => {
+        expect(widget.sizeCache).toEqual(expectedSize);
+        // Filtering which reduces the matching items to single `candidate 3`
+        const current: Completer.ITextState = {
+          ...position,
+          text: 'c3'
+        };
+        expect(widget.methods).not.toContain(
+          'onModelQueryChanged:editorUpdate'
+        );
+        model.handleTextChange(current);
+        expect(widget.methods).toContain('onModelQueryChanged:editorUpdate');
+        expect(widget.sizeCache).toEqual(undefined);
+      });
+
+      it('should invalidate size cache if query change leads to change in the widest item', () => {
+        expect(widget.sizeCache).toEqual(expectedSize);
+        // First filter to 20 items with `candidate` prefix, this should invalidate
+        let current: Completer.ITextState = {
+          ...position,
+          text: 'candi'
+        };
+
+        model.handleTextChange(current);
+        expect(widget.sizeCache).toEqual(undefined);
+
+        // Establish new cache
+        MessageLoop.sendMessage(widget, Widget.Msg.UpdateRequest);
+        expect(widget.sizeCache).toEqual(expectedSize);
+
+        // Then filter to 20 items with `candx` prefix
+        current = {
+          ...position,
+          text: 'candx'
+        };
+        model.handleTextChange(current);
+        expect(widget.sizeCache).toEqual(undefined);
+      });
+
+      it('should update the documentation panel of selected item', async () => {
+        let args = '';
+        const spy = jest
+          .spyOn(widget as any, '_updateDocPanel')
+          .mockImplementation(async (item: any) => {
+            if (item) {
+              args = (await item).label;
+            }
+          });
+        widget.showDocsPanel = true;
+        const current: Completer.ITextState = {
+          ...position,
+          text: 'c13'
+        };
+        model.handleTextChange(current);
+
+        await new Promise(process.nextTick);
+        expect(spy).toHaveBeenCalledTimes(1);
+        expect(args).toEqual('candx 13');
+
+        // Cycle to the second item
+        widget['_cycle']('down');
+        await new Promise(process.nextTick);
+        expect(spy).toHaveBeenCalledTimes(2);
+        expect(args).toEqual('candidate 13');
+        spy.mockRestore();
+      });
+    });
+  });
+  describe('Completer.Renderer', () => {
+    describe('#itemWidthHeuristic()', () => {
+      let renderer: Completer.Renderer;
+      beforeEach(() => {
+        renderer = new Completer.Renderer();
+      });
+      it('returns a sum of characters in label and type info', () => {
+        let width = renderer.itemWidthHeuristic({
+          label: 'test',
+          type: 'variable'
+        });
+        expect(width).toBe(12);
+      });
+      it('disregards <mark> markup', () => {
+        let width = renderer.itemWidthHeuristic({ label: '<mark>test</mark>' });
+        expect(width).toBe(4);
       });
     });
   });
diff --git a/packages/rendermime/test/json-to-html.d.ts b/packages/metapackage/test/json-to-html.d.ts
similarity index 100%
rename from packages/rendermime/test/json-to-html.d.ts
rename to packages/metapackage/test/json-to-html.d.ts
diff --git a/packages/rendermime/test/outputmodel.spec.ts b/packages/metapackage/test/rendermime/outputmodel.spec.ts
similarity index 83%
rename from packages/rendermime/test/outputmodel.spec.ts
rename to packages/metapackage/test/rendermime/outputmodel.spec.ts
index ab3137aa554e..d88af7d7e90e 100644
--- a/packages/rendermime/test/outputmodel.spec.ts
+++ b/packages/metapackage/test/rendermime/outputmodel.spec.ts
@@ -2,8 +2,8 @@
 // Distributed under the terms of the Modified BSD License.
 
 import * as nbformat from '@jupyterlab/nbformat';
-import { NBTestUtils } from '@jupyterlab/testutils';
-import { OutputModel } from '../src';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
+import { OutputModel } from '@jupyterlab/rendermime';
 
 const DEFAULT_EXECUTE: nbformat.IOutput = {
   output_type: 'execute_result',
@@ -33,6 +33,20 @@ describe('rendermime/outputmodel', () => {
       });
     });
 
+    describe('#changed', () => {
+      it('should be emitted when the data changes', () => {
+        const value = DEFAULT_EXECUTE;
+        let model = new OutputModel({ value });
+        let called = false;
+        model.changed.connect((sender, args) => {
+          expect(sender).toBe(model);
+          called = true;
+        });
+        model.setData({ ...model.data });
+        expect(called).toBe(true);
+      });
+    });
+
     describe('#type', () => {
       it('should be the output type', () => {
         let model = new OutputModel({ value: DEFAULT_EXECUTE });
diff --git a/packages/rendermime/test/registry.spec.ts b/packages/metapackage/test/rendermime/registry.spec.ts
similarity index 82%
rename from packages/rendermime/test/registry.spec.ts
rename to packages/metapackage/test/rendermime/registry.spec.ts
index c2eee26b9442..60b9c4157a23 100644
--- a/packages/rendermime/test/registry.spec.ts
+++ b/packages/metapackage/test/rendermime/registry.spec.ts
@@ -1,15 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { SessionContext } from '@jupyterlab/apputils';
-import { PageConfig } from '@jupyterlab/coreutils';
-import { MathJaxTypesetter } from '@jupyterlab/mathjax2';
-import { Contents, Drive, ServiceManager, Session } from '@jupyterlab/services';
-import * as Mock from '@jupyterlab/testutils/lib/mock';
-import { toArray } from '@lumino/algorithm';
-import { JSONObject, UUID } from '@lumino/coreutils';
-import { Widget } from '@lumino/widgets';
-import json2html from 'json-to-html';
+import { MathJaxTypesetter } from '@jupyterlab/mathjax-extension';
 import {
   IRenderMime,
   MimeModel,
@@ -17,7 +9,12 @@ import {
   RenderedText,
   RenderMimeRegistry,
   standardRendererFactories
-} from '../src';
+} from '@jupyterlab/rendermime';
+import { Contents, Drive, ServiceManager, Session } from '@jupyterlab/services';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { JSONObject, UUID } from '@lumino/coreutils';
+import { Widget } from '@lumino/widgets';
+import json2html from 'json-to-html';
 
 class JSONRenderer extends RenderedHTML {
   mimeType = 'text/html';
@@ -58,8 +55,10 @@ describe('rendermime/registry', () => {
   let RESOLVER: IRenderMime.IResolver;
 
   beforeAll(async () => {
-    const fileContext = await Mock.createFileContext(true);
-    RESOLVER = fileContext.urlResolver;
+    RESOLVER = new RenderMimeRegistry.UrlResolver({
+      contents: ServiceManagerMock().contents,
+      path: UUID.uuid4() + '.txt'
+    });
   });
 
   beforeEach(() => {
@@ -100,14 +99,10 @@ describe('rendermime/registry', () => {
       });
 
       it('should be clonable', () => {
-        const args = {
-          url: PageConfig.getOption('mathjaxUrl'),
-          config: PageConfig.getOption('mathjaxConfig')
-        };
-        const typesetter1 = new MathJaxTypesetter(args);
+        const typesetter1 = new MathJaxTypesetter();
         const clone1 = r.clone({ latexTypesetter: typesetter1 });
         expect(clone1.latexTypesetter).toBe(typesetter1);
-        const typesetter2 = new MathJaxTypesetter(args);
+        const typesetter2 = new MathJaxTypesetter();
         const clone2 = r.clone({ latexTypesetter: typesetter2 });
         expect(clone2.latexTypesetter).toBe(typesetter2);
       });
@@ -122,7 +117,7 @@ describe('rendermime/registry', () => {
       it('should raise an error for an unregistered mime type', () => {
         expect(() => {
           r.createRenderer('text/fizz');
-        }).toThrowError();
+        }).toThrow();
       });
 
       it('should render json data', async () => {
@@ -263,7 +258,7 @@ describe('rendermime/registry', () => {
     describe('#clone()', () => {
       it('should clone the rendermime instance with shallow copies of data', () => {
         const c = r.clone();
-        expect(toArray(c.mimeTypes)).toEqual(r.mimeTypes);
+        expect(Array.from(c.mimeTypes)).toEqual(r.mimeTypes);
         c.addFactory(fooFactory);
         expect(r).not.toBe(c);
       });
@@ -293,7 +288,9 @@ describe('rendermime/registry', () => {
       });
 
       it('should be a no-op if the mimeType is not registered', () => {
-        r.removeMimeType('text/foo');
+        expect(() => {
+          r.removeMimeType('text/foo');
+        }).not.toThrow();
       });
     });
 
@@ -316,7 +313,6 @@ describe('rendermime/registry', () => {
 
     describe('.UrlResolver', () => {
       let manager: ServiceManager.IManager;
-      let resolverSession: RenderMimeRegistry.UrlResolver;
       let resolverPath: RenderMimeRegistry.UrlResolver;
       let contents: Contents.IManager;
       let session: Session.ISessionConnection;
@@ -325,7 +321,7 @@ describe('rendermime/registry', () => {
       const path = pathParent + '/pr%25 ' + UUID.uuid4();
 
       beforeAll(async () => {
-        manager = new Mock.ServiceManagerMock();
+        manager = new ServiceManagerMock();
         const drive = new Drive({ name: 'extra' });
         contents = manager.contents;
         contents.addDrive(drive);
@@ -335,10 +331,6 @@ describe('rendermime/registry', () => {
           path: path,
           type: 'test'
         });
-        resolverSession = new RenderMimeRegistry.UrlResolver({
-          session,
-          contents: manager.contents
-        });
         resolverPath = new RenderMimeRegistry.UrlResolver({
           path: path,
           contents: manager.contents
@@ -351,40 +343,14 @@ describe('rendermime/registry', () => {
 
       describe('#constructor', () => {
         it('should create a UrlResolver instance', () => {
-          expect(resolverSession).toBeInstanceOf(
-            RenderMimeRegistry.UrlResolver
-          );
           expect(resolverPath).toBeInstanceOf(RenderMimeRegistry.UrlResolver);
         });
       });
 
       describe('.path', () => {
-        it('should give precedence to the explicit path over the session', async () => {
-          const resolver = new RenderMimeRegistry.UrlResolver({
-            session: new SessionContext({
-              sessionManager: manager.sessions,
-              specsManager: manager.kernelspecs,
-              path: pathParent + '/pr%25 ' + UUID.uuid4(),
-              kernelPreference: { canStart: false, shouldStart: false }
-            }),
-            contents: manager.contents,
-            path: '/some/path/file.txt'
-          });
-          expect(await resolver.resolveUrl('./foo')).toContain('some/path/foo');
-        });
-
-        it('should fall back to the session path if only the session is given', () => {
-          expect(resolverSession.path).toBe(path);
-        });
-
         it('should allow the path to be changed', async () => {
           const resolver = new RenderMimeRegistry.UrlResolver({
-            session: new SessionContext({
-              sessionManager: manager.sessions,
-              specsManager: manager.kernelspecs,
-              path: pathParent + '/pr%25 ' + UUID.uuid4(),
-              kernelPreference: { canStart: false, shouldStart: false }
-            }),
+            path: pathParent + '/pr%25 ' + UUID.uuid4(),
             contents: manager.contents
           });
           resolver.path = '/some/path/file.txt';
@@ -402,9 +368,6 @@ describe('rendermime/registry', () => {
 
       describe('#resolveUrl()', () => {
         it('should resolve a relative url', async () => {
-          expect(await resolverSession.resolveUrl('./foo')).toContain(
-            urlParent + '/foo'
-          );
           expect(await resolverPath.resolveUrl('./foo')).toContain(
             urlParent + '/foo'
           );
@@ -412,12 +375,7 @@ describe('rendermime/registry', () => {
 
         it('should resolve a relative url with no active session', async () => {
           const resolver = new RenderMimeRegistry.UrlResolver({
-            session: new SessionContext({
-              sessionManager: manager.sessions,
-              specsManager: manager.kernelspecs,
-              path: pathParent + '/pr%25 ' + UUID.uuid4(),
-              kernelPreference: { canStart: false, shouldStart: false }
-            }),
+            path: pathParent + '/pr%25 ' + UUID.uuid4(),
             contents: manager.contents
           });
           const path = await resolver.resolveUrl('./foo');
@@ -425,18 +383,12 @@ describe('rendermime/registry', () => {
         });
 
         it('should ignore urls that have a protocol', async () => {
-          expect(await resolverSession.resolveUrl('http://foo')).toContain(
-            'http://foo'
-          );
           expect(await resolverPath.resolveUrl('http://foo')).toContain(
             'http://foo'
           );
         });
 
         it('should resolve URLs with escapes', async () => {
-          expect(
-            await resolverSession.resolveUrl('has%20space%23hash')
-          ).toContain(urlParent + '/has%20space%23hash');
           expect(await resolverPath.resolveUrl('has%20space%23hash')).toContain(
             urlParent + '/has%20space%23hash'
           );
@@ -452,9 +404,8 @@ describe('rendermime/registry', () => {
         });
 
         it('should resolve escapes correctly', async () => {
-          const contextPromise = resolverPath.getDownloadUrl(
-            'foo%20%23%2520test'
-          );
+          const contextPromise =
+            resolverPath.getDownloadUrl('foo%20%23%2520test');
           const contentsPromise = contents.getDownloadUrl('foo #%20test');
           const values = await Promise.all([contextPromise, contentsPromise]);
           expect(values[0]).toBe(values[1]);
diff --git a/packages/metapackage/tsconfig.json b/packages/metapackage/tsconfig.json
index bd4d00aff08a..a3f30b22c558 100644
--- a/packages/metapackage/tsconfig.json
+++ b/packages/metapackage/tsconfig.json
@@ -30,9 +30,6 @@
     {
       "path": "../cells"
     },
-    {
-      "path": "../celltags"
-    },
     {
       "path": "../celltags-extension"
     },
@@ -45,12 +42,6 @@
     {
       "path": "../codemirror-extension"
     },
-    {
-      "path": "../collaboration"
-    },
-    {
-      "path": "../collaboration-extension"
-    },
     {
       "path": "../completer"
     },
@@ -84,12 +75,6 @@
     {
       "path": "../docmanager-extension"
     },
-    {
-      "path": "../docprovider"
-    },
-    {
-      "path": "../docprovider-extension"
-    },
     {
       "path": "../docregistry"
     },
@@ -159,6 +144,12 @@
     {
       "path": "../logconsole-extension"
     },
+    {
+      "path": "../lsp"
+    },
+    {
+      "path": "../lsp-extension"
+    },
     {
       "path": "../mainmenu"
     },
@@ -172,10 +163,16 @@
       "path": "../markdownviewer-extension"
     },
     {
-      "path": "../mathjax2"
+      "path": "../markedparser-extension"
+    },
+    {
+      "path": "../mathjax-extension"
+    },
+    {
+      "path": "../metadataform"
     },
     {
-      "path": "../mathjax2-extension"
+      "path": "../metadataform-extension"
     },
     {
       "path": "../nbformat"
@@ -225,9 +222,6 @@
     {
       "path": "../settingregistry"
     },
-    {
-      "path": "../shared-models"
-    },
     {
       "path": "../shortcuts-extension"
     },
@@ -276,12 +270,6 @@
     {
       "path": "../ui-components-extension"
     },
-    {
-      "path": "../vdom"
-    },
-    {
-      "path": "../vdom-extension"
-    },
     {
       "path": "../vega5-extension"
     }
diff --git a/packages/metapackage/tsconfig.test.json b/packages/metapackage/tsconfig.test.json
new file mode 100644
index 000000000000..c2e6491d00be
--- /dev/null
+++ b/packages/metapackage/tsconfig.test.json
@@ -0,0 +1,279 @@
+{
+  "extends": "../../tsconfigbase.test",
+  "include": ["src/*", "test/**/*"],
+  "references": [
+    {
+      "path": "../application"
+    },
+    {
+      "path": "../application-extension"
+    },
+    {
+      "path": "../apputils"
+    },
+    {
+      "path": "../apputils-extension"
+    },
+    {
+      "path": "../attachments"
+    },
+    {
+      "path": "../cell-toolbar"
+    },
+    {
+      "path": "../cell-toolbar-extension"
+    },
+    {
+      "path": "../cells"
+    },
+    {
+      "path": "../celltags-extension"
+    },
+    {
+      "path": "../codeeditor"
+    },
+    {
+      "path": "../codemirror"
+    },
+    {
+      "path": "../codemirror-extension"
+    },
+    {
+      "path": "../completer"
+    },
+    {
+      "path": "../completer-extension"
+    },
+    {
+      "path": "../console"
+    },
+    {
+      "path": "../console-extension"
+    },
+    {
+      "path": "../coreutils"
+    },
+    {
+      "path": "../csvviewer"
+    },
+    {
+      "path": "../csvviewer-extension"
+    },
+    {
+      "path": "../debugger"
+    },
+    {
+      "path": "../debugger-extension"
+    },
+    {
+      "path": "../docmanager"
+    },
+    {
+      "path": "../docmanager-extension"
+    },
+    {
+      "path": "../docregistry"
+    },
+    {
+      "path": "../documentsearch"
+    },
+    {
+      "path": "../documentsearch-extension"
+    },
+    {
+      "path": "../extensionmanager"
+    },
+    {
+      "path": "../extensionmanager-extension"
+    },
+    {
+      "path": "../filebrowser"
+    },
+    {
+      "path": "../filebrowser-extension"
+    },
+    {
+      "path": "../fileeditor"
+    },
+    {
+      "path": "../fileeditor-extension"
+    },
+    {
+      "path": "../help-extension"
+    },
+    {
+      "path": "../htmlviewer"
+    },
+    {
+      "path": "../htmlviewer-extension"
+    },
+    {
+      "path": "../hub-extension"
+    },
+    {
+      "path": "../imageviewer"
+    },
+    {
+      "path": "../imageviewer-extension"
+    },
+    {
+      "path": "../inspector"
+    },
+    {
+      "path": "../inspector-extension"
+    },
+    {
+      "path": "../javascript-extension"
+    },
+    {
+      "path": "../json-extension"
+    },
+    {
+      "path": "../launcher"
+    },
+    {
+      "path": "../launcher-extension"
+    },
+    {
+      "path": "../logconsole"
+    },
+    {
+      "path": "../logconsole-extension"
+    },
+    {
+      "path": "../lsp"
+    },
+    {
+      "path": "../lsp-extension"
+    },
+    {
+      "path": "../mainmenu"
+    },
+    {
+      "path": "../mainmenu-extension"
+    },
+    {
+      "path": "../markdownviewer"
+    },
+    {
+      "path": "../markdownviewer-extension"
+    },
+    {
+      "path": "../markedparser-extension"
+    },
+    {
+      "path": "../mathjax-extension"
+    },
+    {
+      "path": "../metadataform"
+    },
+    {
+      "path": "../metadataform-extension"
+    },
+    {
+      "path": "../nbformat"
+    },
+    {
+      "path": "../notebook"
+    },
+    {
+      "path": "../notebook-extension"
+    },
+    {
+      "path": "../observables"
+    },
+    {
+      "path": "../outputarea"
+    },
+    {
+      "path": "../pdf-extension"
+    },
+    {
+      "path": "../property-inspector"
+    },
+    {
+      "path": "../rendermime"
+    },
+    {
+      "path": "../rendermime-extension"
+    },
+    {
+      "path": "../rendermime-interfaces"
+    },
+    {
+      "path": "../running"
+    },
+    {
+      "path": "../running-extension"
+    },
+    {
+      "path": "../services"
+    },
+    {
+      "path": "../settingeditor"
+    },
+    {
+      "path": "../settingeditor-extension"
+    },
+    {
+      "path": "../settingregistry"
+    },
+    {
+      "path": "../shortcuts-extension"
+    },
+    {
+      "path": "../statedb"
+    },
+    {
+      "path": "../statusbar"
+    },
+    {
+      "path": "../statusbar-extension"
+    },
+    {
+      "path": "../terminal"
+    },
+    {
+      "path": "../terminal-extension"
+    },
+    {
+      "path": "../theme-dark-extension"
+    },
+    {
+      "path": "../theme-light-extension"
+    },
+    {
+      "path": "../toc"
+    },
+    {
+      "path": "../toc-extension"
+    },
+    {
+      "path": "../tooltip"
+    },
+    {
+      "path": "../tooltip-extension"
+    },
+    {
+      "path": "../translation"
+    },
+    {
+      "path": "../translation-extension"
+    },
+    {
+      "path": "../ui-components"
+    },
+    {
+      "path": "../ui-components-extension"
+    },
+    {
+      "path": "../vega5-extension"
+    },
+    {
+      "path": "."
+    },
+    {
+      "path": "../testing"
+    }
+  ]
+}
diff --git a/packages/nbconvert-css/package.json b/packages/nbconvert-css/package.json
index f030b2fedb9e..5fa5f06c64b3 100644
--- a/packages/nbconvert-css/package.json
+++ b/packages/nbconvert-css/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/nbconvert-css",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "CSS bundle for the JupyterLab nbconvert template",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -31,23 +31,21 @@
     "watch": "webpack --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/outputarea": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/outputarea": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
-    "file-loader": "~6.0.0",
-    "mini-css-extract-plugin": "~1.3.2",
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
     "null-loader": "^4.0.0",
     "rimraf": "~3.0.0",
-    "url-loader": "~4.1.0",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0"
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/nbconvert-css/webpack.config.js b/packages/nbconvert-css/webpack.config.js
index c56e611f6db5..1a0021628ea3 100644
--- a/packages/nbconvert-css/webpack.config.js
+++ b/packages/nbconvert-css/webpack.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const path = require('path');
 const crypto = require('crypto');
@@ -27,7 +32,7 @@ module.exports = {
       },
       {
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader'
+        type: 'asset/inline'
       },
       /* Use null-loader to drop resources that are not used in the CSS */
       {
diff --git a/packages/nbformat/.vscode/launch.json b/packages/nbformat/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/nbformat/.vscode/launch.json
+++ b/packages/nbformat/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/nbformat/babel.config.js b/packages/nbformat/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/nbformat/babel.config.js
+++ b/packages/nbformat/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/nbformat/jest.config.js b/packages/nbformat/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/nbformat/jest.config.js
+++ b/packages/nbformat/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/nbformat/package.json b/packages/nbformat/package.json
index b85e1c67aa5d..5006a9e92a9f 100644
--- a/packages/nbformat/package.json
+++ b/packages/nbformat/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/nbformat",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "Notebook format interfaces",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}"
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,20 +33,19 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@lumino/coreutils": "^1.11.0"
+    "@lumino/coreutils": "^2.1.2"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/nbformat/src/index.ts b/packages/nbformat/src/index.ts
index 1568b4d048ad..0b45b41397b4 100644
--- a/packages/nbformat/src/index.ts
+++ b/packages/nbformat/src/index.ts
@@ -102,7 +102,7 @@ export function validateMimeValue(
   value: MultilineString | PartialJSONObject
 ): boolean {
   // Check if "application/json" or "application/foo+json"
-  const jsonTest = /^application\/(.*?)+\+json$/;
+  const jsonTest = /^application\/.+\+json$/;
   const isJSONType = type === 'application/json' || jsonTest.test(type);
 
   const isString = (x: any) => {
@@ -141,7 +141,7 @@ export function validateMimeValue(
 /**
  * A type which describes the type of cell.
  */
-export type CellType = 'code' | 'markdown' | 'raw';
+export type CellType = 'code' | 'markdown' | 'raw' | string;
 
 /**
  * The Jupyter metadata namespace.
diff --git a/packages/nbformat/tsconfig.test.json b/packages/nbformat/tsconfig.test.json
index 717c38a1f87b..e96af67102d5 100644
--- a/packages/nbformat/tsconfig.test.json
+++ b/packages/nbformat/tsconfig.test.json
@@ -6,7 +6,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/notebook-extension/package.json b/packages/notebook-extension/package.json
index 85b27fb89e7e..fca2cb738367 100644
--- a/packages/notebook-extension/package.json
+++ b/packages/notebook-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/notebook-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Notebook Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -22,12 +22,13 @@
     "lib": "lib/"
   },
   "files": [
-    "lib/*.d.ts",
-    "lib/*.js.map",
-    "lib/*.js",
+    "lib/**/*.d.ts",
+    "lib/**/*.js.map",
+    "lib/**/*.js",
     "schema/*.json",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,40 +37,50 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docmanager-extension": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/filebrowser": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/logconsole": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/property-inspector": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/completer": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/docmanager-extension": "^4.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/filebrowser": "^4.0.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/logconsole": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/metadataform": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/property-inspector": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "@rjsf/utils": "^5.1.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/completer-extension/schema/notebooks.json b/packages/notebook-extension/schema/completer.json
similarity index 100%
rename from packages/completer-extension/schema/notebooks.json
rename to packages/notebook-extension/schema/completer.json
diff --git a/packages/notebook-extension/schema/panel.json b/packages/notebook-extension/schema/panel.json
index 2b969b0c8a8e..88c5800c0e18 100644
--- a/packages/notebook-extension/schema/panel.json
+++ b/packages/notebook-extension/schema/panel.json
@@ -13,12 +13,20 @@
       { "name": "cut", "command": "notebook:cut-cell", "rank": 21 },
       { "name": "copy", "command": "notebook:copy-cell", "rank": 22 },
       { "name": "paste", "command": "notebook:paste-cell-below", "rank": 23 },
-      { "name": "run", "command": "runmenu:run", "rank": 30 },
-      { "name": "interrupt", "command": "kernelmenu:interrupt", "rank": 31 },
-      { "name": "restart", "command": "kernelmenu:restart", "rank": 32 },
+      {
+        "name": "run",
+        "command": "notebook:run-cell-and-select-next",
+        "rank": 30
+      },
+      {
+        "name": "interrupt",
+        "command": "notebook:interrupt-kernel",
+        "rank": 31
+      },
+      { "name": "restart", "command": "notebook:restart-kernel", "rank": 32 },
       {
         "name": "restart-and-run",
-        "command": "runmenu:restart-and-run-all",
+        "command": "notebook:restart-run-all",
         "rank": 33
       },
       { "name": "cellType", "rank": 40 },
@@ -72,6 +80,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
diff --git a/packages/notebook-extension/schema/tools.json b/packages/notebook-extension/schema/tools.json
new file mode 100644
index 000000000000..1b35ff60b3e8
--- /dev/null
+++ b/packages/notebook-extension/schema/tools.json
@@ -0,0 +1,143 @@
+{
+  "type": "object",
+  "title": "Common tools",
+  "description": "Setting for the common tools",
+  "jupyter.lab.metadataforms": [
+    {
+      "id": "commonToolsSection",
+      "label": "Common Tools",
+      "metadataSchema": {
+        "type": "object",
+        "properties": {
+          "_CELL-TOOL": {
+            "title": "Cell tool",
+            "type": "null"
+          },
+          "/editable": {
+            "title": "Editable",
+            "type": "boolean",
+            "default": true,
+            "oneOf": [
+              {
+                "const": true,
+                "title": "Editable"
+              },
+              {
+                "const": false,
+                "title": "Read-Only"
+              }
+            ]
+          },
+          "/slideshow/slide_type": {
+            "title": "Slide Type",
+            "type": "string",
+            "default": "",
+            "oneOf": [
+              {
+                "const": "",
+                "title": "-"
+              },
+              {
+                "const": "slide",
+                "title": "Slide"
+              },
+              {
+                "const": "subslide",
+                "title": "Sub-Slide"
+              },
+              {
+                "const": "fragment",
+                "title": "Fragment"
+              },
+              {
+                "const": "skip",
+                "title": "Skip"
+              },
+              {
+                "const": "notes",
+                "title": "Notes"
+              }
+            ]
+          },
+          "/raw_mimetype": {
+            "title": "Raw NBConvert Format",
+            "type": "string",
+            "default": "",
+            "oneOf": [
+              {
+                "const": "",
+                "title": "-"
+              },
+              {
+                "const": "pdf",
+                "title": "PDF"
+              },
+              {
+                "const": "slides",
+                "title": "Slides"
+              },
+              {
+                "const": "script",
+                "title": "Script"
+              },
+              {
+                "const": "notebook",
+                "title": "Notebook"
+              },
+              {
+                "const": "custom",
+                "title": "Custom"
+              }
+            ]
+          },
+          "/toc/base_numbering": {
+            "title": "Table of content - Base number",
+            "type": "integer"
+          }
+        }
+      },
+      "uiSchema": {
+        "/editable": {
+          "ui:widget": "select"
+        }
+      },
+      "metadataOptions": {
+        "_CELL-TOOL": {
+          "customRenderer": "@jupyterlab/notebook-extension:active-cell-tool.renderer"
+        },
+        "/raw_mimetype": {
+          "cellTypes": ["raw"]
+        },
+        "/toc/base_numbering": {
+          "metadataLevel": "notebook"
+        }
+      }
+    },
+    {
+      "id": "advancedToolsSection",
+      "label": "Advanced Tools",
+      "metadataSchema": {
+        "type": "object",
+        "properties": {
+          "_CELL-METADATA": {
+            "title": "Cell metadata",
+            "type": "null"
+          },
+          "_NOTEBOOK-METADATA": {
+            "title": "Notebook metadata",
+            "type": "null"
+          }
+        }
+      },
+      "metadataOptions": {
+        "_CELL-METADATA": {
+          "customRenderer": "@jupyterlab/notebook-extension:metadata-editor.cell-metadata"
+        },
+        "_NOTEBOOK-METADATA": {
+          "customRenderer": "@jupyterlab/notebook-extension:metadata-editor.notebook-metadata"
+        }
+      }
+    }
+  ],
+  "additionalProperties": false
+}
diff --git a/packages/notebook-extension/schema/tracker.json b/packages/notebook-extension/schema/tracker.json
index 77978e4a0b7b..c2a589152bc7 100644
--- a/packages/notebook-extension/schema/tracker.json
+++ b/packages/notebook-extension/schema/tracker.json
@@ -499,23 +499,53 @@
     {
       "command": "notebook:move-cursor-down",
       "keys": ["ArrowDown"],
-      "selector": ".jp-Notebook:focus"
+      "selector": "[data-jp-traversable]:focus"
     },
     {
       "command": "notebook:move-cursor-down",
       "keys": ["J"],
-      "selector": ".jp-Notebook:focus"
+      "selector": "[data-jp-traversable]:focus"
     },
     {
       "command": "notebook:move-cursor-up",
       "keys": ["ArrowUp"],
-      "selector": ".jp-Notebook:focus"
+      "selector": "[data-jp-traversable]:focus"
     },
     {
       "command": "notebook:move-cursor-up",
       "keys": ["K"],
+      "selector": "[data-jp-traversable]:focus"
+    },
+    {
+      "command": "notebook:move-cursor-heading-above-or-collapse",
+      "keys": ["ArrowLeft"],
+      "selector": ".jp-Notebook:focus.jp-mod-commandMode"
+    },
+    {
+      "command": "notebook:move-cursor-heading-below-or-expand",
+      "keys": ["ArrowRight"],
+      "selector": ".jp-Notebook:focus.jp-mod-commandMode"
+    },
+    {
+      "command": "notebook:insert-heading-above",
+      "keys": ["Shift A"],
       "selector": ".jp-Notebook:focus"
     },
+    {
+      "command": "notebook:insert-heading-below",
+      "keys": ["Shift B"],
+      "selector": ".jp-Notebook:focus"
+    },
+    {
+      "command": "notebook:collapse-all-headings",
+      "keys": ["Ctrl Shift ArrowLeft"],
+      "selector": ".jp-Notebook.jp-mod-commandMode"
+    },
+    {
+      "command": "notebook:expand-all-headings",
+      "keys": ["Ctrl Shift ArrowRight"],
+      "selector": ".jp-Notebook.jp-mod-commandMode"
+    },
     {
       "command": "notebook:paste-cell-below",
       "keys": ["V"],
@@ -570,7 +600,7 @@
     },
     {
       "command": "viewmenu:line-numbering",
-      "keys": [""],
+      "keys": ["Shift L"],
       "selector": ".jp-Notebook.jp-mod-commandMode"
     },
     {
@@ -594,121 +624,29 @@
       "selector": ".jp-Notebook:focus"
     },
     {
-      "command": "notebook:toggle-cell-line-numbers",
-      "keys": ["L"],
+      "command": "notebook:undo-cell-action",
+      "keys": ["Z"],
       "selector": ".jp-Notebook:focus"
     },
     {
-      "command": "notebook:undo-cell-action",
-      "keys": ["Z"],
+      "command": "notebook:toggle-render-side-by-side-current",
+      "keys": ["Shift R"],
       "selector": ".jp-Notebook:focus"
     },
     {
-      "command": "notebook:toggle-render-side-by-side",
-      "keys": ["Ctrl Shift R"],
+      "command": "notebook:move-cell-up",
+      "keys": ["Ctrl Shift ArrowUp"],
       "selector": ".jp-Notebook:focus"
     },
     {
-      "command": "notebook:toggle-render-side-by-side-current",
-      "keys": ["Shift R"],
+      "command": "notebook:move-cell-down",
+      "keys": ["Ctrl Shift ArrowDown"],
       "selector": ".jp-Notebook:focus"
     }
   ],
   "title": "Notebook",
   "description": "Notebook settings.",
   "definitions": {
-    "editorConfig": {
-      "properties": {
-        "autoClosingBrackets": {
-          "type": "boolean",
-          "default": false,
-          "title": "Auto Closing Brackets"
-        },
-        "cursorBlinkRate": {
-          "type": "number",
-          "title": "Cursor Blinking Rate",
-          "description": "Half-period in milliseconds used for cursor blinking. The default blink rate is 530ms. By setting this to zero, blinking can be disabled. A negative value hides the cursor entirely.",
-          "default": 530
-        },
-        "fontFamily": {
-          "type": ["string", "null"],
-          "default": null,
-          "title": "Font Family"
-        },
-        "fontSize": {
-          "type": ["integer", "null"],
-          "minimum": 1,
-          "maximum": 100,
-          "default": null,
-          "title": "Font Size"
-        },
-        "lineHeight": {
-          "type": ["number", "null"],
-          "default": null,
-          "title": "Line Height"
-        },
-        "lineNumbers": {
-          "type": "boolean",
-          "default": false,
-          "title": "Show Line Numbers"
-        },
-        "lineWrap": {
-          "type": "string",
-          "enum": ["off", "on", "wordWrapColumn", "bounded"],
-          "title": "Line Wrap"
-        },
-        "matchBrackets": {
-          "type": "boolean",
-          "title": "Match Brackets"
-        },
-        "readOnly": {
-          "type": "boolean",
-          "default": false,
-          "title": "Read Only"
-        },
-        "insertSpaces": {
-          "type": "boolean",
-          "default": true,
-          "title": "Insert Spaces"
-        },
-        "tabSize": {
-          "type": "number",
-          "default": 4,
-          "title": "Tab Size"
-        },
-        "wordWrapColumn": {
-          "type": "integer",
-          "default": 80,
-          "title": "Word Wrap Column"
-        },
-        "rulers": {
-          "type": "array",
-          "items": {
-            "type": "number"
-          },
-          "title": "Rulers",
-          "default": []
-        },
-        "codeFolding": {
-          "type": "boolean",
-          "default": false,
-          "title": "Code Folding"
-        },
-        "lineWiseCopyCut": {
-          "type": "boolean",
-          "default": true,
-          "title": "Line-wise Ctrl-C",
-          "description": "When enabled, which is the default, doing copy or cut when there is no selection will copy or cut the whole lines that have cursors on them."
-        },
-        "showTrailingSpace": {
-          "type": "boolean",
-          "default": false,
-          "title": "Show Trailing Space"
-        }
-      },
-      "additionalProperties": false,
-      "type": "object"
-    },
     "kernelStatusConfig": {
       "type": "object",
       "additionalProperties": false,
@@ -730,25 +668,11 @@
   "properties": {
     "codeCellConfig": {
       "title": "Code Cell Configuration",
-      "description": "The configuration for all code cells.",
-      "$ref": "#/definitions/editorConfig",
+      "description": "The configuration for all code cells; it will override the CodeMirror default configuration.",
+      "type": "object",
       "default": {
-        "autoClosingBrackets": false,
-        "cursorBlinkRate": 530,
-        "fontFamily": null,
-        "fontSize": null,
-        "lineHeight": null,
         "lineNumbers": false,
-        "lineWrap": "off",
-        "matchBrackets": true,
-        "readOnly": false,
-        "insertSpaces": true,
-        "tabSize": 4,
-        "wordWrapColumn": 80,
-        "rulers": [],
-        "codeFolding": false,
-        "lineWiseCopyCut": true,
-        "showTrailingSpace": false
+        "lineWrap": false
       }
     },
     "defaultCell": {
@@ -758,6 +682,19 @@
       "enum": ["code", "markdown", "raw"],
       "default": "code"
     },
+    "autoStartDefaultKernel": {
+      "title": "Automatically Start Preferred Kernel",
+      "description": "Whether to automatically start the preferred kernel.",
+      "type": "boolean",
+      "default": false
+    },
+    "inputHistoryScope": {
+      "type": "string",
+      "default": "global",
+      "enum": ["global", "session"],
+      "title": "Input History Scope",
+      "description": "Whether the line history for standard input (e.g. the ipdb prompt) should kept separately for different kernel sessions (`session`) or combined (`global`)."
+    },
     "kernelShutdown": {
       "title": "Shut down kernel",
       "description": "Whether to shut down or not the kernel when closing a notebook.",
@@ -766,48 +703,20 @@
     },
     "markdownCellConfig": {
       "title": "Markdown Cell Configuration",
-      "description": "The configuration for all markdown cells.",
-      "$ref": "#/definitions/editorConfig",
+      "description": "The configuration for all markdown cells; it will override the CodeMirror default configuration.",
+      "type": "object",
       "default": {
-        "autoClosingBrackets": false,
-        "cursorBlinkRate": 530,
-        "fontFamily": null,
-        "fontSize": null,
-        "lineHeight": null,
         "lineNumbers": false,
-        "lineWrap": "on",
-        "matchBrackets": false,
-        "readOnly": false,
-        "insertSpaces": true,
-        "tabSize": 4,
-        "wordWrapColumn": 80,
-        "rulers": [],
-        "codeFolding": false,
-        "lineWiseCopyCut": true,
-        "showTrailingSpace": false
+        "matchBrackets": false
       }
     },
     "rawCellConfig": {
       "title": "Raw Cell Configuration",
-      "description": "The configuration for all raw cells.",
-      "$ref": "#/definitions/editorConfig",
+      "description": "The configuration for all raw cells; it will override the CodeMirror default configuration.",
+      "type": "object",
       "default": {
-        "autoClosingBrackets": false,
-        "cursorBlinkRate": 530,
-        "fontFamily": null,
-        "fontSize": null,
-        "lineHeight": null,
         "lineNumbers": false,
-        "lineWrap": "on",
-        "matchBrackets": false,
-        "readOnly": false,
-        "insertSpaces": true,
-        "tabSize": 4,
-        "wordWrapColumn": 80,
-        "rulers": [],
-        "codeFolding": false,
-        "lineWiseCopyCut": true,
-        "showTrailingSpace": false
+        "matchBrackets": false
       }
     },
     "scrollPastEnd": {
@@ -822,35 +731,12 @@
       "type": "boolean",
       "default": false
     },
-    "numberCellsToRenderDirectly": {
-      "title": "Number of cells to render directly",
-      "description": "Define the number of cells to render directly when virtual notebook intersection observer is available",
-      "type": "number",
-      "default": 99999
-    },
-    "remainingTimeBeforeRescheduling": {
-      "title": "Remaining time in milliseconds before virtual notebook rendering is rescheduled",
-      "description": "Define the remaining time in milliseconds before virtual notebook rendering is rescheduled. Set 0 if you want to disable any rescheduling",
+    "overscanCount": {
+      "title": "Number of cells to render outside de the viewport",
+      "description": "In 'full' windowing mode, this is the number of cells above and below the viewport.",
       "type": "number",
-      "default": 50
-    },
-    "renderCellOnIdle": {
-      "title": "Render cell on browser idle time",
-      "description": "Defines if the placeholder cells should be rendered when the browser is idle",
-      "type": "boolean",
-      "default": true
-    },
-    "observedTopMargin": {
-      "title": "Observed top margin",
-      "description": "Defines the observed top margin for the virtual notebook, set a positive number of pixels to render cells above the visible view",
-      "type": "string",
-      "default": "1000px"
-    },
-    "observedBottomMargin": {
-      "title": "Observed bottom margin",
-      "description": "Defines the observed bottom margin for the virtual notebook, set a positive number of pixels to render cells below the visible view",
-      "type": "string",
-      "default": "1000px"
+      "default": 1,
+      "minimum": 1
     },
     "maxNumberOutputs": {
       "title": "The maximum number of output cells to be rendered in the output area.",
@@ -873,16 +759,22 @@
         "showProgress": true
       }
     },
-    "experimentalDisableDocumentWideUndoRedo": {
-      "title": "Experimental settings to enable the undo/redo on the notebook document level.",
-      "description": "Disable the undo/redo on the notebook document level, so actions independent cells can have their own history. The undo/redo never applies on the outputs, in other words, outputs don't have history. A moved cell completely looses history capability for now.",
+    "documentWideUndoRedo": {
+      "title": "Enable undo/redo actions at the notebook document level.",
+      "description": "Enables the undo/redo actions at the notebook document level; aka undoing within a cell may undo the latest notebook change that happen in another cell. This is deprecated and will be removed in 5.0.0.",
       "type": "boolean",
+      "default": false
+    },
+    "showHiddenCellsButton": {
+      "type": "boolean",
+      "title": "Show hidden cells button if collapsed",
+      "description": "If set to true, a button is shown below collapsed headings, indicating how many cells are hidden beneath the collapsed heading.",
       "default": true
     },
     "renderingLayout": {
       "title": "Rendering Layout",
       "description": "Global setting to define the rendering layout in notebooks. 'default' or 'side-by-side' are supported.",
-      "type": "string",
+      "enum": ["default", "side-by-side"],
       "default": "default"
     },
     "sideBySideLeftMarginOverride": {
@@ -903,6 +795,12 @@
       "type": "number",
       "default": 1,
       "minimum": 0
+    },
+    "windowingMode": {
+      "title": "Windowing mode",
+      "description": "'defer': Improve loading time - Wait for idle CPU cycles to attach out of viewport cells - 'full': Best performance with side effects - Attach to the DOM only cells in viewport - 'none': Worst performance without side effects - Attach all cells to the viewport",
+      "enum": ["defer", "full", "none"],
+      "default": "defer"
     }
   },
   "additionalProperties": false,
diff --git a/packages/notebook-extension/src/index.ts b/packages/notebook-extension/src/index.ts
index d84b48e9cb58..aa055c003fff 100644
--- a/packages/notebook-extension/src/index.ts
+++ b/packages/notebook-extension/src/index.ts
@@ -5,9 +5,12 @@
  * @module notebook-extension
  */
 
+import type { FieldProps } from '@rjsf/utils';
+
 import {
   ILabShell,
   ILayoutRestorer,
+  IRouter,
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
@@ -15,33 +18,45 @@ import {
   createToolbarFactory,
   Dialog,
   ICommandPalette,
+  IKernelStatusModel,
   InputDialog,
+  ISanitizer,
+  ISessionContext,
   ISessionContextDialogs,
   IToolbarWidgetRegistry,
   MainAreaWidget,
-  sessionContextDialogs,
+  Sanitizer,
+  SessionContextDialogs,
   showDialog,
   Toolbar,
   WidgetTracker
 } from '@jupyterlab/apputils';
 import { Cell, CodeCell, ICellModel, MarkdownCell } from '@jupyterlab/cells';
-import { IEditorServices } from '@jupyterlab/codeeditor';
-import { PageConfig } from '@jupyterlab/coreutils';
+import {
+  CodeEditor,
+  IEditorServices,
+  IPositionModel
+} from '@jupyterlab/codeeditor';
+import { IChangedArgs, PageConfig } from '@jupyterlab/coreutils';
 
+import {
+  IEditorExtensionRegistry,
+  IEditorLanguageRegistry
+} from '@jupyterlab/codemirror';
+import { ICompletionProviderManager } from '@jupyterlab/completer';
 import { IDocumentManager } from '@jupyterlab/docmanager';
 import { ToolbarItems as DocToolbarItems } from '@jupyterlab/docmanager-extension';
 import { DocumentRegistry, IDocumentWidget } from '@jupyterlab/docregistry';
-import { IFileBrowserFactory } from '@jupyterlab/filebrowser';
+import { ISearchProviderRegistry } from '@jupyterlab/documentsearch';
+import { IDefaultFileBrowser } from '@jupyterlab/filebrowser';
 import { ILauncher } from '@jupyterlab/launcher';
 import {
-  IEditMenu,
-  IFileMenu,
-  IHelpMenu,
-  IKernelMenu,
-  IMainMenu,
-  IRunMenu,
-  IViewMenu
-} from '@jupyterlab/mainmenu';
+  ILSPCodeExtractorsManager,
+  ILSPDocumentConnectionManager,
+  ILSPFeatureManager
+} from '@jupyterlab/lsp';
+import { IMainMenu } from '@jupyterlab/mainmenu';
+import { IMetadataFormProvider } from '@jupyterlab/metadataform';
 import * as nbformat from '@jupyterlab/nbformat';
 import {
   CommandEditStatus,
@@ -51,8 +66,11 @@ import {
   INotebookWidgetFactory,
   Notebook,
   NotebookActions,
+  NotebookAdapter,
   NotebookModelFactory,
   NotebookPanel,
+  NotebookSearchProvider,
+  NotebookToCFactory,
   NotebookTools,
   NotebookTracker,
   NotebookTrustStatus,
@@ -60,15 +78,17 @@ import {
   StaticNotebook,
   ToolbarItems
 } from '@jupyterlab/notebook';
-import {
-  IObservableList,
-  IObservableUndoableList
-} from '@jupyterlab/observables';
+import { IObservableList } from '@jupyterlab/observables';
 import { IPropertyInspectorProvider } from '@jupyterlab/property-inspector';
-import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
+import {
+  IMarkdownParser,
+  IRenderMime,
+  IRenderMimeRegistry
+} from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStateDB } from '@jupyterlab/statedb';
 import { IStatusBar } from '@jupyterlab/statusbar';
+import { ITableOfContentsRegistry } from '@jupyterlab/toc';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import {
   addAboveIcon,
@@ -77,25 +97,35 @@ import {
   copyIcon,
   cutIcon,
   duplicateIcon,
+  fastForwardIcon,
+  IFormRenderer,
+  IFormRendererRegistry,
   moveDownIcon,
   moveUpIcon,
   notebookIcon,
-  pasteIcon
+  pasteIcon,
+  refreshIcon,
+  runIcon,
+  stopIcon
 } from '@jupyterlab/ui-components';
 import { ArrayExt } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import {
   JSONExt,
   JSONObject,
-  JSONValue,
   ReadonlyJSONValue,
   ReadonlyPartialJSONObject,
   UUID
 } from '@lumino/coreutils';
 import { DisposableSet, IDisposable } from '@lumino/disposable';
 import { Message, MessageLoop } from '@lumino/messaging';
-import { Menu, Panel } from '@lumino/widgets';
+import { Menu, Panel, Widget } from '@lumino/widgets';
 import { logNotebookOutput } from './nboutput';
+import { ActiveCellTool } from './tool-widgets/activeCellToolWidget';
+import {
+  CellMetadataField,
+  NotebookMetadataField
+} from './tool-widgets/metadataEditorFields';
 
 /**
  * The command IDs used by the notebook plugin.
@@ -117,12 +147,16 @@ namespace CommandIDs {
 
   export const changeKernel = 'notebook:change-kernel';
 
+  export const getKernel = 'notebook:get-kernel';
+
   export const createConsole = 'notebook:create-console';
 
   export const createOutputView = 'notebook:create-output-view';
 
   export const clearAllOutputs = 'notebook:clear-all-cell-outputs';
 
+  export const shutdown = 'notebook:shutdown-kernel';
+
   export const closeAndShutdown = 'notebook:close-and-shutdown';
 
   export const trust = 'notebook:trust';
@@ -179,6 +213,16 @@ namespace CommandIDs {
 
   export const selectBelow = 'notebook:move-cursor-down';
 
+  export const selectHeadingAboveOrCollapse =
+    'notebook:move-cursor-heading-above-or-collapse';
+
+  export const selectHeadingBelowOrExpand =
+    'notebook:move-cursor-heading-below-or-expand';
+
+  export const insertHeadingAbove = 'notebook:insert-heading-above';
+
+  export const insertHeadingBelow = 'notebook:insert-heading-below';
+
   export const extendAbove = 'notebook:extend-marked-cells-above';
 
   export const extendTop = 'notebook:extend-marked-cells-top';
@@ -209,6 +253,10 @@ namespace CommandIDs {
 
   export const redoCellAction = 'notebook:redo-cell-action';
 
+  export const redo = 'notebook:redo';
+
+  export const undo = 'notebook:undo';
+
   export const markdown1 = 'notebook:change-cell-to-heading-1';
 
   export const markdown2 = 'notebook:change-cell-to-heading-2';
@@ -252,13 +300,19 @@ namespace CommandIDs {
 
   export const autoClosingBrackets = 'notebook:toggle-autoclosing-brackets';
 
-  export const toggleCollapseCmd = 'Collapsible_Headings:Toggle_Collapse';
+  export const toggleCollapseCmd = 'notebook:toggle-heading-collapse';
 
-  export const collapseAllCmd = 'Collapsible_Headings:Collapse_All';
+  export const collapseAllCmd = 'notebook:collapse-all-headings';
 
-  export const expandAllCmd = 'Collapsible_Headings:Expand_All';
+  export const expandAllCmd = 'notebook:expand-all-headings';
 
   export const copyToClipboard = 'notebook:copy-to-clipboard';
+
+  export const invokeCompleter = 'completer:invoke-notebook';
+
+  export const selectCompleter = 'completer:select-notebook';
+
+  export const tocRunCells = 'toc:run-cells';
 }
 
 /**
@@ -287,16 +341,20 @@ const SIDE_BY_SIDE_STYLE_ID = 'jp-NotebookExtension-sideBySideMargins';
  */
 const trackerPlugin: JupyterFrontEndPlugin<INotebookTracker> = {
   id: '@jupyterlab/notebook-extension:tracker',
+  description: 'Provides the notebook widget tracker.',
   provides: INotebookTracker,
-  requires: [INotebookWidgetFactory, ITranslator],
+  requires: [INotebookWidgetFactory, IEditorExtensionRegistry],
   optional: [
     ICommandPalette,
-    IFileBrowserFactory,
+    IDefaultFileBrowser,
     ILauncher,
     ILayoutRestorer,
     IMainMenu,
+    IRouter,
     ISettingRegistry,
-    ISessionContextDialogs
+    ISessionContextDialogs,
+    ITranslator,
+    IFormRendererRegistry
   ],
   activate: activateNotebookHandler,
   autoStart: true
@@ -307,6 +365,7 @@ const trackerPlugin: JupyterFrontEndPlugin<INotebookTracker> = {
  */
 const factory: JupyterFrontEndPlugin<NotebookPanel.IContentFactory> = {
   id: '@jupyterlab/notebook-extension:factory',
+  description: 'Provides the notebook cell factory.',
   provides: NotebookPanel.IContentFactory,
   requires: [IEditorServices],
   autoStart: true,
@@ -323,8 +382,15 @@ const tools: JupyterFrontEndPlugin<INotebookTools> = {
   activate: activateNotebookTools,
   provides: INotebookTools,
   id: '@jupyterlab/notebook-extension:tools',
+  description: 'Provides the notebook tools.',
   autoStart: true,
-  requires: [INotebookTracker, IEditorServices, IStateDB, ITranslator],
+  requires: [
+    INotebookTracker,
+    IEditorServices,
+    IEditorLanguageRegistry,
+    IStateDB,
+    ITranslator
+  ],
   optional: [IPropertyInspectorProvider]
 };
 
@@ -333,6 +399,7 @@ const tools: JupyterFrontEndPlugin<INotebookTools> = {
  */
 export const commandEditItem: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:mode-status',
+  description: 'Adds a notebook mode status widget.',
   autoStart: true,
   requires: [INotebookTracker, ITranslator],
   optional: [IStatusBar],
@@ -372,6 +439,7 @@ export const commandEditItem: JupyterFrontEndPlugin<void> = {
  */
 export const executionIndicator: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:execution-indicator',
+  description: 'Adds a notebook execution status widget.',
   autoStart: true,
   requires: [INotebookTracker, ILabShell, ITranslator],
   optional: [IStatusBar, ISettingRegistry],
@@ -479,6 +547,7 @@ export const executionIndicator: JupyterFrontEndPlugin<void> = {
  */
 export const exportPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:export',
+  description: 'Adds the export notebook commands.',
   autoStart: true,
   requires: [ITranslator, INotebookTracker],
   optional: [IMainMenu, ICommandPalette],
@@ -499,6 +568,9 @@ export const exportPlugin: JupyterFrontEndPlugin<void> = {
 
     commands.addCommand(CommandIDs.exportToFormat, {
       label: args => {
+        if (args.label === undefined) {
+          return trans.__('Save and Export Notebook to the given `format`.');
+        }
         const formatLabel = args['label'] as string;
         return args['isPalette']
           ? trans.__('Save and Export Notebook: %1', formatLabel)
@@ -542,44 +614,61 @@ export const exportPlugin: JupyterFrontEndPlugin<void> = {
       )?.submenu;
     }
 
-    void services.nbconvert.getExportFormats().then(response => {
-      if (response) {
-        const formatLabels: any = Private.getFormatLabels(translator);
-
-        // Convert export list to palette and menu items.
-        const formatList = Object.keys(response);
-        formatList.forEach(function (key) {
-          const capCaseKey = trans.__(key[0].toUpperCase() + key.substr(1));
-          const labelStr = formatLabels[key] ? formatLabels[key] : capCaseKey;
-          let args = {
-            format: key,
-            label: labelStr,
-            isPalette: false
-          };
-          if (FORMAT_EXCLUDE.indexOf(key) === -1) {
-            if (exportTo) {
-              exportTo.addItem({
-                command: CommandIDs.exportToFormat,
-                args: args
-              });
-            }
-            if (palette) {
-              args = {
-                format: key,
-                label: labelStr,
-                isPalette: true
-              };
-              const category = trans.__('Notebook Operations');
-              palette.addItem({
-                command: CommandIDs.exportToFormat,
-                category,
-                args
-              });
-            }
-          }
-        });
+    let formatsInitialized = false;
+
+    /** Request formats only when a notebook might use them. */
+    const maybeInitializeFormats = async () => {
+      if (formatsInitialized) {
+        return;
       }
-    });
+
+      tracker.widgetAdded.disconnect(maybeInitializeFormats);
+
+      formatsInitialized = true;
+
+      const response = await services.nbconvert.getExportFormats(false);
+
+      if (!response) {
+        return;
+      }
+
+      const formatLabels: any = Private.getFormatLabels(translator);
+
+      // Convert export list to palette and menu items.
+      const formatList = Object.keys(response);
+      formatList.forEach(function (key) {
+        const capCaseKey = trans.__(key[0].toUpperCase() + key.substr(1));
+        const labelStr = formatLabels[key] ? formatLabels[key] : capCaseKey;
+        let args = {
+          format: key,
+          label: labelStr,
+          isPalette: false
+        };
+        if (FORMAT_EXCLUDE.indexOf(key) === -1) {
+          if (exportTo) {
+            exportTo.addItem({
+              command: CommandIDs.exportToFormat,
+              args: args
+            });
+          }
+          if (palette) {
+            args = {
+              format: key,
+              label: labelStr,
+              isPalette: true
+            };
+            const category = trans.__('Notebook Operations');
+            palette.addItem({
+              command: CommandIDs.exportToFormat,
+              category,
+              args
+            });
+          }
+        }
+      });
+    };
+
+    tracker.widgetAdded.connect(maybeInitializeFormats);
   }
 };
 
@@ -588,6 +677,7 @@ export const exportPlugin: JupyterFrontEndPlugin<void> = {
  */
 export const notebookTrustItem: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:trust-status',
+  description: 'Adds the notebook trusted status widget.',
   autoStart: true,
   requires: [INotebookTracker, ITranslator],
   optional: [IStatusBar],
@@ -628,27 +718,28 @@ export const notebookTrustItem: JupyterFrontEndPlugin<void> = {
 /**
  * The notebook widget factory provider.
  */
-const widgetFactoryPlugin: JupyterFrontEndPlugin<NotebookWidgetFactory.IFactory> = {
-  id: '@jupyterlab/notebook-extension:widget-factory',
-  provides: INotebookWidgetFactory,
-  requires: [
-    NotebookPanel.IContentFactory,
-    IEditorServices,
-    IRenderMimeRegistry,
-    ISessionContextDialogs,
-    IToolbarWidgetRegistry,
-    ITranslator
-  ],
-  optional: [ISettingRegistry],
-  activate: activateWidgetFactory,
-  autoStart: true
-};
+const widgetFactoryPlugin: JupyterFrontEndPlugin<NotebookWidgetFactory.IFactory> =
+  {
+    id: '@jupyterlab/notebook-extension:widget-factory',
+    description: 'Provides the notebook widget factory.',
+    provides: INotebookWidgetFactory,
+    requires: [
+      NotebookPanel.IContentFactory,
+      IEditorServices,
+      IRenderMimeRegistry,
+      IToolbarWidgetRegistry
+    ],
+    optional: [ISettingRegistry, ISessionContextDialogs, ITranslator],
+    activate: activateWidgetFactory,
+    autoStart: true
+  };
 
 /**
  * The cloned output provider.
  */
 const clonedOutputsPlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:cloned-outputs',
+  description: 'Adds the clone output feature.',
   requires: [IDocumentManager, INotebookTracker, ITranslator],
   optional: [ILayoutRestorer],
   activate: activateClonedOutputs,
@@ -660,6 +751,7 @@ const clonedOutputsPlugin: JupyterFrontEndPlugin<void> = {
  */
 const codeConsolePlugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/notebook-extension:code-console',
+  description: 'Adds the notebook code consoles features.',
   requires: [INotebookTracker, ITranslator],
   activate: activateCodeConsole,
   autoStart: true
@@ -669,12 +761,298 @@ const codeConsolePlugin: JupyterFrontEndPlugin<void> = {
  * A plugin to copy CodeCell outputs.
  */
 const copyOutputPlugin: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/notebook-extensions:copy-output',
+  id: '@jupyterlab/notebook-extension:copy-output',
+  description: 'Adds the copy cell outputs feature.',
   activate: activateCopyOutput,
   requires: [ITranslator, INotebookTracker],
   autoStart: true
 };
 
+/**
+ * Kernel status indicator.
+ */
+const kernelStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:kernel-status',
+  description: 'Adds the notebook kernel status.',
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    kernelStatus: IKernelStatusModel
+  ) => {
+    const provider = (widget: Widget | null) => {
+      let session: ISessionContext | null = null;
+
+      if (widget && tracker.has(widget)) {
+        return (widget as NotebookPanel).sessionContext;
+      }
+
+      return session;
+    };
+
+    kernelStatus.addSessionProvider(provider);
+  },
+  requires: [INotebookTracker, IKernelStatusModel],
+  autoStart: true
+};
+
+/**
+ * Cursor position.
+ */
+const lineColStatus: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:cursor-position',
+  description: 'Adds the notebook cursor position status.',
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    positionModel: IPositionModel
+  ) => {
+    let previousWidget: NotebookPanel | null = null;
+
+    const provider = async (widget: Widget | null) => {
+      let editor: CodeEditor.IEditor | null = null;
+      if (widget !== previousWidget) {
+        previousWidget?.content.activeCellChanged.disconnect(
+          positionModel.update
+        );
+
+        previousWidget = null;
+        if (widget && tracker.has(widget)) {
+          (widget as NotebookPanel).content.activeCellChanged.connect(
+            positionModel.update
+          );
+          const activeCell = (widget as NotebookPanel).content.activeCell;
+          editor = null;
+          if (activeCell) {
+            await activeCell.ready;
+            editor = activeCell.editor;
+          }
+          previousWidget = widget as NotebookPanel;
+        }
+      } else if (widget) {
+        const activeCell = (widget as NotebookPanel).content.activeCell;
+        editor = null;
+        if (activeCell) {
+          await activeCell.ready;
+          editor = activeCell.editor;
+        }
+      }
+      return editor;
+    };
+
+    positionModel.addEditorProvider(provider);
+  },
+  requires: [INotebookTracker, IPositionModel],
+  autoStart: true
+};
+
+const completerPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:completer',
+  description: 'Adds the code completion capability to notebooks.',
+  requires: [INotebookTracker],
+  optional: [ICompletionProviderManager, ITranslator, ISanitizer],
+  activate: activateNotebookCompleterService,
+  autoStart: true
+};
+
+/**
+ * A plugin to search notebook documents
+ */
+const searchProvider: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:search',
+  description: 'Adds search capability to notebooks.',
+  requires: [ISearchProviderRegistry],
+  autoStart: true,
+  activate: (app: JupyterFrontEnd, registry: ISearchProviderRegistry) => {
+    registry.add('jp-notebookSearchProvider', NotebookSearchProvider);
+  }
+};
+
+const tocPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:toc',
+  description: 'Adds table of content capability to the notebooks',
+  requires: [INotebookTracker, ITableOfContentsRegistry, ISanitizer],
+  optional: [IMarkdownParser],
+  autoStart: true,
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    tocRegistry: ITableOfContentsRegistry,
+    sanitizer: IRenderMime.ISanitizer,
+    mdParser: IMarkdownParser | null
+  ): void => {
+    tocRegistry.add(new NotebookToCFactory(tracker, mdParser, sanitizer));
+  }
+};
+
+const languageServerPlugin: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:language-server',
+  description: 'Adds language server capability to the notebooks.',
+  requires: [
+    INotebookTracker,
+    ILSPDocumentConnectionManager,
+    ILSPFeatureManager,
+    ILSPCodeExtractorsManager
+  ],
+  activate: activateNotebookLanguageServer,
+  autoStart: true
+};
+
+/**
+ * Metadata editor for the raw cell mimetype.
+ */
+const updateRawMimetype: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:update-raw-mimetype',
+  description: 'Adds metadata form editor for raw cell mimetype.',
+  autoStart: true,
+  requires: [INotebookTracker, IMetadataFormProvider, ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    metadataForms: IMetadataFormProvider,
+    translator: ITranslator
+  ) => {
+    const trans = translator.load('jupyterlab');
+    let formatsInitialized = false;
+
+    async function maybeInitializeFormats() {
+      if (formatsInitialized) {
+        return;
+      }
+      if (!metadataForms.get('commonToolsSection')) {
+        return;
+      }
+
+      const properties = metadataForms
+        .get('commonToolsSection')!
+        .getProperties('/raw_mimetype');
+
+      if (!properties) {
+        return;
+      }
+
+      tracker.widgetAdded.disconnect(maybeInitializeFormats);
+
+      formatsInitialized = true;
+
+      const services = app.serviceManager;
+      const response = await services.nbconvert.getExportFormats(false);
+      if (!response) {
+        return;
+      }
+
+      // convert exportList to palette and menu items
+      const formatList = Object.keys(response);
+      const formatLabels = Private.getFormatLabels(translator);
+      type enumeration = {
+        const: string;
+        title: string;
+      };
+      formatList.forEach(function (key) {
+        const mimetypeExists =
+          (properties!.oneOf as Array<enumeration>)?.filter(
+            value => value.const === key
+          ).length > 0;
+        if (!mimetypeExists) {
+          const altOption = trans.__(key[0].toUpperCase() + key.substr(1));
+          const option = formatLabels[key] ? formatLabels[key] : altOption;
+          const mimeTypeValue = response[key].output_mimetype;
+
+          (properties!.oneOf as Array<enumeration>)!.push({
+            const: mimeTypeValue,
+            title: option
+          });
+        }
+      });
+
+      metadataForms
+        .get('commonToolsSection')!
+        .setProperties('/raw_mimetype', properties);
+    }
+    tracker.widgetAdded.connect(maybeInitializeFormats);
+  }
+};
+
+/**
+ * Registering metadata editor fields.
+ */
+const customMetadataEditorFields: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:metadata-editor',
+  description: 'Adds metadata form for full metadata editor.',
+  autoStart: true,
+  requires: [INotebookTracker, IEditorServices, IFormRendererRegistry],
+  optional: [ITranslator],
+  activate: (
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    editorServices: IEditorServices,
+    formRegistry: IFormRendererRegistry,
+    translator?: ITranslator
+  ) => {
+    const editorFactory: CodeEditor.Factory = options =>
+      editorServices.factoryService.newInlineEditor(options);
+    // Register the custom fields.
+    const cellComponent: IFormRenderer = {
+      fieldRenderer: (props: FieldProps) => {
+        return new CellMetadataField({
+          editorFactory,
+          tracker,
+          label: 'Cell metadata',
+          translator: translator
+        }).render(props);
+      }
+    };
+    formRegistry.addRenderer(
+      '@jupyterlab/notebook-extension:metadata-editor.cell-metadata',
+      cellComponent
+    );
+
+    const notebookComponent: IFormRenderer = {
+      fieldRenderer: (props: FieldProps) => {
+        return new NotebookMetadataField({
+          editorFactory,
+          tracker,
+          label: 'Notebook metadata',
+          translator: translator
+        }).render(props);
+      }
+    };
+    formRegistry.addRenderer(
+      '@jupyterlab/notebook-extension:metadata-editor.notebook-metadata',
+      notebookComponent
+    );
+  }
+};
+
+/**
+ * Registering active cell field.
+ */
+const activeCellTool: JupyterFrontEndPlugin<void> = {
+  id: '@jupyterlab/notebook-extension:active-cell-tool',
+  description: 'Adds active cell field in the metadata editor tab.',
+  autoStart: true,
+  requires: [INotebookTracker, IFormRendererRegistry, IEditorLanguageRegistry],
+  activate: (
+    // Register the custom field.
+    app: JupyterFrontEnd,
+    tracker: INotebookTracker,
+    formRegistry: IFormRendererRegistry,
+    languages: IEditorLanguageRegistry
+  ) => {
+    const component: IFormRenderer = {
+      fieldRenderer: (props: FieldProps) => {
+        return new ActiveCellTool({
+          tracker,
+          languages
+        }).render(props);
+      }
+    };
+    formRegistry.addRenderer(
+      '@jupyterlab/notebook-extension:active-cell-tool.renderer',
+      component
+    );
+  }
+};
+
 /**
  * Export the plugins as default.
  */
@@ -690,7 +1068,16 @@ const plugins: JupyterFrontEndPlugin<any>[] = [
   logNotebookOutput,
   clonedOutputsPlugin,
   codeConsolePlugin,
-  copyOutputPlugin
+  copyOutputPlugin,
+  kernelStatus,
+  lineColStatus,
+  completerPlugin,
+  searchProvider,
+  tocPlugin,
+  languageServerPlugin,
+  updateRawMimetype,
+  customMetadataEditorFields,
+  activeCellTool
 ];
 export default plugins;
 
@@ -701,6 +1088,7 @@ function activateNotebookTools(
   app: JupyterFrontEnd,
   tracker: INotebookTracker,
   editorServices: IEditorServices,
+  languages: IEditorLanguageRegistry,
   state: IStateDB,
   translator: ITranslator,
   inspectorProvider: IPropertyInspectorProvider | null
@@ -708,20 +1096,6 @@ function activateNotebookTools(
   const trans = translator.load('jupyterlab');
   const id = 'notebook-tools';
   const notebookTools = new NotebookTools({ tracker, translator });
-  const activeCellTool = new NotebookTools.ActiveCellTool();
-  const slideShow = NotebookTools.createSlideShowSelector(translator);
-  const editorFactory = editorServices.factoryService.newInlineEditor;
-  const cellMetadataEditor = new NotebookTools.CellMetadataEditorTool({
-    editorFactory,
-    collapsed: false,
-    translator
-  });
-  const notebookMetadataEditor = new NotebookTools.NotebookMetadataEditorTool({
-    editorFactory,
-    translator
-  });
-
-  const services = app.serviceManager;
 
   // Create message hook for triggers to save to the database.
   const hook = (sender: any, message: Message): boolean => {
@@ -738,65 +1112,10 @@ function activateNotebookTools(
     }
     return true;
   };
-  const optionsMap: { [key: string]: JSONValue } = {};
-  optionsMap.None = null;
-  void services.nbconvert.getExportFormats().then(response => {
-    if (response) {
-      /**
-       * The excluded Cell Inspector Raw NbConvert Formats
-       * (returned from nbconvert's export list)
-       */
-      const rawFormatExclude = [
-        'pdf',
-        'slides',
-        'script',
-        'notebook',
-        'custom'
-      ];
-      let optionValueArray: any = [
-        [trans.__('PDF'), 'pdf'],
-        [trans.__('Slides'), 'slides'],
-        [trans.__('Script'), 'script'],
-        [trans.__('Notebook'), 'notebook'],
-        [trans.__('Custom'), 'custom']
-      ];
-
-      // convert exportList to palette and menu items
-      const formatList = Object.keys(response);
-      const formatLabels = Private.getFormatLabels(translator);
-      formatList.forEach(function (key) {
-        if (rawFormatExclude.indexOf(key) === -1) {
-          const altOption = trans.__(key[0].toUpperCase() + key.substr(1));
-          const option = formatLabels[key] ? formatLabels[key] : altOption;
-          const mimeTypeValue = response[key].output_mimetype;
-          optionValueArray.push([option, mimeTypeValue]);
-        }
-      });
-      const nbConvert = NotebookTools.createNBConvertSelector(
-        optionValueArray,
-        translator
-      );
-      notebookTools.addItem({ tool: nbConvert, section: 'common', rank: 3 });
-    }
-  });
   notebookTools.title.icon = buildIcon;
   notebookTools.title.caption = trans.__('Notebook Tools');
   notebookTools.id = id;
 
-  notebookTools.addItem({ tool: activeCellTool, section: 'common', rank: 1 });
-  notebookTools.addItem({ tool: slideShow, section: 'common', rank: 2 });
-
-  notebookTools.addItem({
-    tool: cellMetadataEditor,
-    section: 'advanced',
-    rank: 1
-  });
-  notebookTools.addItem({
-    tool: notebookMetadataEditor,
-    section: 'advanced',
-    rank: 2
-  });
-
   MessageLoop.installMessageHook(notebookTools, hook);
 
   if (inspectorProvider) {
@@ -817,11 +1136,14 @@ function activateWidgetFactory(
   contentFactory: NotebookPanel.IContentFactory,
   editorServices: IEditorServices,
   rendermime: IRenderMimeRegistry,
-  sessionContextDialogs: ISessionContextDialogs,
   toolbarRegistry: IToolbarWidgetRegistry,
-  translator: ITranslator,
-  settingRegistry: ISettingRegistry | null
+  settingRegistry: ISettingRegistry | null,
+  sessionContextDialogs_: ISessionContextDialogs | null,
+  translator_: ITranslator | null
 ): NotebookWidgetFactory.IFactory {
+  const translator = translator_ ?? nullTranslator;
+  const sessionContextDialogs =
+    sessionContextDialogs_ ?? new SessionContextDialogs({ translator });
   const preferKernelOption = PageConfig.getOption('notebookStartsKernel');
 
   // If the option is not set, assume `true`
@@ -838,13 +1160,13 @@ function activateWidgetFactory(
     | undefined;
 
   // Register notebook toolbar widgets
-  toolbarRegistry.registerFactory<NotebookPanel>(FACTORY, 'save', panel =>
+  toolbarRegistry.addFactory<NotebookPanel>(FACTORY, 'save', panel =>
     DocToolbarItems.createSaveButton(commands, panel.context.fileChanged)
   );
-  toolbarRegistry.registerFactory<NotebookPanel>(FACTORY, 'cellType', panel =>
+  toolbarRegistry.addFactory<NotebookPanel>(FACTORY, 'cellType', panel =>
     ToolbarItems.createCellTypeItem(panel, translator)
   );
-  toolbarRegistry.registerFactory<NotebookPanel>(FACTORY, 'kernelName', panel =>
+  toolbarRegistry.addFactory<NotebookPanel>(FACTORY, 'kernelName', panel =>
     Toolbar.createKernelNameItem(
       panel.sessionContext,
       sessionContextDialogs,
@@ -852,7 +1174,7 @@ function activateWidgetFactory(
     )
   );
 
-  toolbarRegistry.registerFactory<NotebookPanel>(
+  toolbarRegistry.addFactory<NotebookPanel>(
     FACTORY,
     'executionProgress',
     panel => {
@@ -884,8 +1206,11 @@ function activateWidgetFactory(
     );
   }
 
+  const trans = translator.load('jupyterlab');
+
   const factory = new NotebookWidgetFactory({
     name: FACTORY,
+    label: trans.__('Notebook'),
     fileTypes: ['notebook'],
     modelName: 'notebook',
     defaultFor: ['notebook'],
@@ -896,11 +1221,11 @@ function activateWidgetFactory(
     editorConfig: StaticNotebook.defaultEditorConfig,
     notebookConfig: StaticNotebook.defaultNotebookConfig,
     mimeTypeService: editorServices.mimeTypeService,
-    sessionDialogs: sessionContextDialogs,
     toolbarFactory,
-    translator: translator
+    translator
   });
   app.docRegistry.addWidgetFactory(factory);
+
   return factory;
 }
 
@@ -940,7 +1265,7 @@ function activateClonedOutputs(
   };
 
   commands.addCommand(CommandIDs.createOutputView, {
-    label: trans.__('Create New View for Output'),
+    label: trans.__('Create New View for Cell Output'),
     execute: async args => {
       let cell: CodeCell | undefined;
       let current: NotebookPanel | undefined | null;
@@ -971,7 +1296,8 @@ function activateClonedOutputs(
       const widget = new MainAreaWidget({ content });
       current.context.addSibling(widget, {
         ref: current.id,
-        mode: 'split-bottom'
+        mode: 'split-bottom',
+        type: 'Cloned Output'
       });
 
       const updateCloned = () => {
@@ -1040,7 +1366,7 @@ function activateCodeConsole(
       const { context, content } = current;
 
       const cell = content.activeCell;
-      const metadata = cell?.model.metadata.toJSON();
+      const metadata = cell?.model.metadata;
       const path = context.path;
       // ignore action in non-code cell
       if (!cell || cell.model.type !== 'code') {
@@ -1049,6 +1375,9 @@ function activateCodeConsole(
 
       let code: string;
       const editor = cell.editor;
+      if (!editor) {
+        return;
+      }
       const selection = editor.getSelection();
       const { start, end } = selection;
       const selected = start.column !== end.column || start.line !== end.line;
@@ -1057,11 +1386,11 @@ function activateCodeConsole(
         // Get the selected code from the editor.
         const start = editor.getOffsetAt(selection.start);
         const end = editor.getOffsetAt(selection.end);
-        code = editor.model.value.text.substring(start, end);
+        code = editor.model.sharedModel.getSource().substring(start, end);
       } else {
         // no selection, find the complete statement around the current line
         const cursor = editor.getCursorPosition();
-        const srcLines = editor.model.value.text.split('\n');
+        const srcLines = editor.model.sharedModel.getSource().split('\n');
         let curLine = selection.start.line;
         while (
           curLine < editor.lineCount &&
@@ -1076,12 +1405,13 @@ function activateCodeConsole(
         // eslint-disable-next-line
         while (true) {
           code = srcLines.slice(firstLine, lastLine).join('\n');
-          const reply = await current.context.sessionContext.session?.kernel?.requestIsComplete(
-            {
-              // ipython needs an empty line at the end to correctly identify completeness of indented code
-              code: code + '\n\n'
-            }
-          );
+          const reply =
+            await current.context.sessionContext.session?.kernel?.requestIsComplete(
+              {
+                // ipython needs an empty line at the end to correctly identify completeness of indented code
+                code: code + '\n\n'
+              }
+            );
           if (reply?.content.status === 'complete') {
             if (curLine < lastLine) {
               // we find a block of complete statement containing the current line, great!
@@ -1224,21 +1554,39 @@ function activateCopyOutput(
 function activateNotebookHandler(
   app: JupyterFrontEnd,
   factory: NotebookWidgetFactory.IFactory,
-  translator: ITranslator,
+  extensions: IEditorExtensionRegistry,
   palette: ICommandPalette | null,
-  browserFactory: IFileBrowserFactory | null,
+  defaultBrowser: IDefaultFileBrowser | null,
   launcher: ILauncher | null,
   restorer: ILayoutRestorer | null,
   mainMenu: IMainMenu | null,
+  router: IRouter | null,
   settingRegistry: ISettingRegistry | null,
-  sessionDialogs: ISessionContextDialogs | null
+  sessionDialogs_: ISessionContextDialogs | null,
+  translator_: ITranslator | null,
+  formRegistry: IFormRendererRegistry | null
 ): INotebookTracker {
+  const translator = translator_ ?? nullTranslator;
+  const sessionDialogs =
+    sessionDialogs_ ?? new SessionContextDialogs({ translator });
   const trans = translator.load('jupyterlab');
   const services = app.serviceManager;
 
-  const { commands } = app;
+  const { commands, shell } = app;
   const tracker = new NotebookTracker({ namespace: 'notebook' });
 
+  // Use the router to deal with hash navigation
+  function onRouted(router: IRouter, location: IRouter.ILocation): void {
+    if (location.hash && tracker.currentWidget) {
+      tracker.currentWidget.setFragment(location.hash);
+    }
+  }
+  router?.routed.connect(onRouted);
+
+  const isEnabled = (): boolean => {
+    return Private.isEnabled(shell, tracker);
+  };
+
   const setSideBySideOutputRatio = (sideBySideOutputRatio: number) =>
     document.documentElement.style.setProperty(
       '--jp-side-by-side-output-size',
@@ -1256,6 +1604,51 @@ function activateNotebookHandler(
       settings.changed.connect(() => {
         updateConfig(settings);
       });
+
+      const updateSessionSettings = (
+        session: ISessionContext,
+        changes: IChangedArgs<ISessionContext.IKernelPreference>
+      ) => {
+        const { newValue, oldValue } = changes;
+        const autoStartDefault = newValue.autoStartDefault;
+
+        if (
+          typeof autoStartDefault === 'boolean' &&
+          autoStartDefault !== oldValue.autoStartDefault
+        ) {
+          // Ensure we break the cycle
+          if (
+            autoStartDefault !==
+            (settings.get('autoStartDefaultKernel').composite as boolean)
+          )
+            // Once the settings is changed `updateConfig` will take care
+            // of the propagation to existing session context.
+            settings
+              .set('autoStartDefaultKernel', autoStartDefault)
+              .catch(reason => {
+                console.error(
+                  `Failed to set ${settings.id}.autoStartDefaultKernel`
+                );
+              });
+        }
+      };
+
+      const sessionContexts = new WeakSet<ISessionContext>();
+      const listenToKernelPreference = (panel: NotebookPanel): void => {
+        const session = panel.context.sessionContext;
+        if (!session.isDisposed && !sessionContexts.has(session)) {
+          sessionContexts.add(session);
+          session.kernelPreferenceChanged.connect(updateSessionSettings);
+          session.disposed.connect(() => {
+            session.kernelPreferenceChanged.disconnect(updateSessionSettings);
+          });
+        }
+      };
+      tracker.forEach(listenToKernelPreference);
+      tracker.widgetAdded.connect((tracker, panel) => {
+        listenToKernelPreference(panel);
+      });
+
       commands.addCommand(CommandIDs.autoClosingBrackets, {
         execute: args => {
           const codeConfig = settings.get('codeCellConfig')
@@ -1283,7 +1676,9 @@ function activateNotebookHandler(
         label: trans.__('Auto Close Brackets for All Notebook Cell Types'),
         isToggled: () =>
           ['codeCellConfig', 'markdownCellConfig', 'rawCellConfig'].some(
-            x => (settings.get(x).composite as JSONObject).autoClosingBrackets
+            x =>
+              ((settings.get(x).composite as JSONObject).autoClosingBrackets ??
+                extensions.baseConfiguration['autoClosingBrackets']) === true
           )
       });
       commands.addCommand(CommandIDs.setSideBySideRatio, {
@@ -1308,10 +1703,31 @@ function activateNotebookHandler(
       updateTracker({
         editorConfig: factory.editorConfig,
         notebookConfig: factory.notebookConfig,
-        kernelShutdown: factory.shutdownOnClose
+        kernelShutdown: factory.shutdownOnClose,
+        autoStartDefault: factory.autoStartDefault
       });
     });
 
+  if (formRegistry) {
+    const CMRenderer = formRegistry.getRenderer(
+      '@jupyterlab/codemirror-extension:plugin.defaultConfig'
+    );
+    if (CMRenderer) {
+      formRegistry.addRenderer(
+        '@jupyterlab/notebook-extension:tracker.codeCellConfig',
+        CMRenderer
+      );
+      formRegistry.addRenderer(
+        '@jupyterlab/notebook-extension:tracker.markdownCellConfig',
+        CMRenderer
+      );
+      formRegistry.addRenderer(
+        '@jupyterlab/notebook-extension:tracker.rawCellConfig',
+        CMRenderer
+      );
+    }
+  }
+
   // Handle state restoration.
   if (restorer) {
     void restorer.restore(tracker, {
@@ -1330,7 +1746,7 @@ function activateNotebookHandler(
   });
   registry.addModelFactory(modelFactory);
 
-  addCommands(app, tracker, translator, sessionDialogs);
+  addCommands(app, tracker, translator, sessionDialogs, isEnabled);
 
   if (palette) {
     populatePalette(palette, translator);
@@ -1387,25 +1803,21 @@ function activateNotebookHandler(
 
     factory.editorConfig = { code, markdown, raw };
     factory.notebookConfig = {
+      showHiddenCellsButton: settings.get('showHiddenCellsButton')
+        .composite as boolean,
       scrollPastEnd: settings.get('scrollPastEnd').composite as boolean,
       defaultCell: settings.get('defaultCell').composite as nbformat.CellType,
       recordTiming: settings.get('recordTiming').composite as boolean,
-      numberCellsToRenderDirectly: settings.get('numberCellsToRenderDirectly')
-        .composite as number,
-      remainingTimeBeforeRescheduling: settings.get(
-        'remainingTimeBeforeRescheduling'
-      ).composite as number,
-      renderCellOnIdle: settings.get('renderCellOnIdle').composite as boolean,
-      observedTopMargin: settings.get('observedTopMargin').composite as string,
-      observedBottomMargin: settings.get('observedBottomMargin')
-        .composite as string,
+      overscanCount: settings.get('overscanCount').composite as number,
+      inputHistoryScope: settings.get('inputHistoryScope').composite as
+        | 'global'
+        | 'session',
       maxNumberOutputs: settings.get('maxNumberOutputs').composite as number,
       showEditorForReadOnlyMarkdown: settings.get(
         'showEditorForReadOnlyMarkdown'
       ).composite as boolean,
-      disableDocumentWideUndoRedo: settings.get(
-        'experimentalDisableDocumentWideUndoRedo'
-      ).composite as boolean,
+      disableDocumentWideUndoRedo: !settings.get('documentWideUndoRedo')
+        .composite as boolean,
       renderingLayout: settings.get('renderingLayout').composite as
         | 'default'
         | 'side-by-side',
@@ -1415,10 +1827,14 @@ function activateNotebookHandler(
         'sideBySideRightMarginOverride'
       ).composite as string,
       sideBySideOutputRatio: settings.get('sideBySideOutputRatio')
-        .composite as number
+        .composite as number,
+      windowingMode: settings.get('windowingMode').composite as
+        | 'defer'
+        | 'full'
+        | 'none'
     };
     setSideBySideOutputRatio(factory.notebookConfig.sideBySideOutputRatio);
-    const sideBySideMarginStyle = `.jp-mod-sideBySide.jp-Notebook .jp-Notebook-cell { 
+    const sideBySideMarginStyle = `.jp-mod-sideBySide.jp-Notebook .jp-Notebook-cell {
       margin-left: ${factory.notebookConfig.sideBySideLeftMarginOverride} !important;
       margin-right: ${factory.notebookConfig.sideBySideRightMarginOverride} !important;`;
     const sideBySideMarginTag = document.getElementById(SIDE_BY_SIDE_STYLE_ID);
@@ -1430,6 +1846,8 @@ function activateNotebookHandler(
         `<style id="${SIDE_BY_SIDE_STYLE_ID}">${sideBySideMarginStyle}}</style>`
       );
     }
+    factory.autoStartDefault = settings.get('autoStartDefaultKernel')
+      .composite as boolean;
     factory.shutdownOnClose = settings.get('kernelShutdown')
       .composite as boolean;
 
@@ -1440,27 +1858,32 @@ function activateNotebookHandler(
     updateTracker({
       editorConfig: factory.editorConfig,
       notebookConfig: factory.notebookConfig,
-      kernelShutdown: factory.shutdownOnClose
+      kernelShutdown: factory.shutdownOnClose,
+      autoStartDefault: factory.autoStartDefault
     });
   }
 
   // Add main menu notebook menu.
   if (mainMenu) {
-    populateMenus(app, mainMenu, tracker, translator, sessionDialogs);
+    populateMenus(mainMenu, isEnabled);
   }
 
   // Utility function to create a new notebook.
-  const createNew = async (cwd: string, kernelName?: string) => {
+  const createNew = async (
+    cwd: string,
+    kernelId: string,
+    kernelName: string
+  ) => {
     const model = await commands.execute('docmanager:new-untitled', {
       path: cwd,
       type: 'notebook'
     });
-    if (model != undefined) {
-      const widget = ((await commands.execute('docmanager:open', {
+    if (model !== undefined) {
+      const widget = (await commands.execute('docmanager:open', {
         path: model.path,
         factory: FACTORY,
-        kernel: { name: kernelName }
-      })) as unknown) as IDocumentWidget;
+        kernel: { id: kernelId, name: kernelName }
+      })) as unknown as IDocumentWidget;
       widget.isUntitled = true;
       return widget;
     }
@@ -1484,11 +1907,10 @@ function activateNotebookHandler(
     caption: trans.__('Create a new notebook'),
     icon: args => (args['isPalette'] ? undefined : notebookIcon),
     execute: args => {
-      const cwd =
-        (args['cwd'] as string) ||
-        (browserFactory ? browserFactory.defaultBrowser.model.path : '');
+      const cwd = (args['cwd'] as string) || (defaultBrowser?.model.path ?? '');
+      const kernelId = (args['kernelId'] as string) || '';
       const kernelName = (args['kernelName'] as string) || '';
-      return createNew(cwd, kernelName);
+      return createNew(cwd, kernelId, kernelName);
     }
   });
 
@@ -1536,6 +1958,114 @@ function activateNotebookHandler(
   return tracker;
 }
 
+/**
+ * Activate the completer service for notebook.
+ */
+function activateNotebookCompleterService(
+  app: JupyterFrontEnd,
+  notebooks: INotebookTracker,
+  manager: ICompletionProviderManager | null,
+  translator: ITranslator | null,
+  appSanitizer: IRenderMime.ISanitizer | null
+): void {
+  if (!manager) {
+    return;
+  }
+  const trans = (translator ?? nullTranslator).load('jupyterlab');
+  const sanitizer = appSanitizer ?? new Sanitizer();
+  app.commands.addCommand(CommandIDs.invokeCompleter, {
+    label: trans.__('Display the completion helper.'),
+    execute: args => {
+      const panel = notebooks.currentWidget;
+      if (panel && panel.content.activeCell?.model.type === 'code') {
+        manager.invoke(panel.id);
+      }
+    }
+  });
+
+  app.commands.addCommand(CommandIDs.selectCompleter, {
+    label: trans.__('Select the completion suggestion.'),
+    execute: () => {
+      const id = notebooks.currentWidget && notebooks.currentWidget.id;
+
+      if (id) {
+        return manager.select(id);
+      }
+    }
+  });
+
+  app.commands.addKeyBinding({
+    command: CommandIDs.selectCompleter,
+    keys: ['Enter'],
+    selector: '.jp-Notebook .jp-mod-completer-active'
+  });
+  const updateCompleter = async (
+    _: INotebookTracker | undefined,
+    notebook: NotebookPanel
+  ) => {
+    const completerContext = {
+      editor: notebook.content.activeCell?.editor ?? null,
+      session: notebook.sessionContext.session,
+      widget: notebook,
+      sanitizer: sanitizer
+    };
+    await manager.updateCompleter(completerContext);
+    notebook.content.activeCellChanged.connect((_, cell) => {
+      // Ensure the editor will exist on the cell before adding the completer
+      cell?.ready
+        .then(() => {
+          const newCompleterContext = {
+            editor: cell.editor,
+            session: notebook.sessionContext.session,
+            widget: notebook,
+            sanitizer: sanitizer
+          };
+          return manager.updateCompleter(newCompleterContext);
+        })
+        .catch(console.error);
+    });
+    notebook.sessionContext.sessionChanged.connect(() => {
+      // Ensure the editor will exist on the cell before adding the completer
+      notebook.content.activeCell?.ready
+        .then(() => {
+          const newCompleterContext = {
+            editor: notebook.content.activeCell?.editor ?? null,
+            session: notebook.sessionContext.session,
+            widget: notebook
+          };
+          return manager.updateCompleter(newCompleterContext);
+        })
+        .catch(console.error);
+    });
+  };
+  notebooks.widgetAdded.connect(updateCompleter);
+  manager.activeProvidersChanged.connect(() => {
+    notebooks.forEach(panel => {
+      updateCompleter(undefined, panel).catch(e => console.error(e));
+    });
+  });
+}
+
+/**
+ * Activate the language server for notebook.
+ */
+function activateNotebookLanguageServer(
+  app: JupyterFrontEnd,
+  notebooks: INotebookTracker,
+  connectionManager: ILSPDocumentConnectionManager,
+  featureManager: ILSPFeatureManager,
+  codeExtractorManager: ILSPCodeExtractorsManager
+): void {
+  notebooks.widgetAdded.connect(async (_, notebook) => {
+    const adapter = new NotebookAdapter(notebook, {
+      connectionManager,
+      featureManager,
+      foreignCodeExtractorsManager: codeExtractorManager
+    });
+    connectionManager.registerAdapter(notebook.context.path, adapter);
+  });
+}
+
 // Get the current widget and activate unless the args specify otherwise.
 function getCurrent(
   tracker: INotebookTracker,
@@ -1559,17 +2089,12 @@ function addCommands(
   app: JupyterFrontEnd,
   tracker: NotebookTracker,
   translator: ITranslator,
-  sessionDialogs: ISessionContextDialogs | null
+  sessionDialogs: ISessionContextDialogs,
+  isEnabled: () => boolean
 ): void {
   const trans = translator.load('jupyterlab');
   const { commands, shell } = app;
 
-  sessionDialogs = sessionDialogs ?? sessionContextDialogs;
-
-  const isEnabled = (): boolean => {
-    return Private.isEnabled(shell, tracker);
-  };
-
   const isEnabledAndSingleSelected = (): boolean => {
     return Private.isEnabledAndSingleSelected(shell, tracker);
   };
@@ -1596,10 +2121,7 @@ function addCommands(
         return;
       }
       panel.content.model.cells.changed.connect(
-        (
-          list: IObservableUndoableList<ICellModel>,
-          args: IObservableList.IChangedArgs<ICellModel>
-        ) => {
+        (list: any, args: IObservableList.IChangedArgs<ICellModel>) => {
           // Might be overkill to refresh this every time, but
           // it helps to keep the collapse state consistent.
           refreshCellCollapsed(panel.content);
@@ -1613,54 +2135,125 @@ function addCommands(
     }
   );
 
+  tracker.selectionChanged.connect(() => {
+    commands.notifyCommandChanged(CommandIDs.duplicateBelow);
+    commands.notifyCommandChanged(CommandIDs.deleteCell);
+    commands.notifyCommandChanged(CommandIDs.copy);
+    commands.notifyCommandChanged(CommandIDs.cut);
+    commands.notifyCommandChanged(CommandIDs.pasteBelow);
+    commands.notifyCommandChanged(CommandIDs.pasteAbove);
+    commands.notifyCommandChanged(CommandIDs.pasteAndReplace);
+    commands.notifyCommandChanged(CommandIDs.moveUp);
+    commands.notifyCommandChanged(CommandIDs.moveDown);
+    commands.notifyCommandChanged(CommandIDs.run);
+    commands.notifyCommandChanged(CommandIDs.runAll);
+    commands.notifyCommandChanged(CommandIDs.runAndAdvance);
+    commands.notifyCommandChanged(CommandIDs.runAndInsert);
+  });
+  tracker.activeCellChanged.connect(() => {
+    commands.notifyCommandChanged(CommandIDs.moveUp);
+    commands.notifyCommandChanged(CommandIDs.moveDown);
+  });
+
   commands.addCommand(CommandIDs.runAndAdvance, {
-    label: trans.__('Run Selected Cells'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Run Selected Cell',
+        'Run Selected Cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Run this cell and advance',
+        'Run these %1 cells and advance',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.runAndAdvance(content, context.sessionContext);
+        return NotebookActions.runAndAdvance(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled()),
+    icon: args => (args.toolbar ? runIcon : undefined)
   });
   commands.addCommand(CommandIDs.run, {
-    label: trans.__('Run Selected Cells and Do not Advance'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Run Selected Cell and Do not Advance',
+        'Run Selected Cells and Do not Advance',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.run(content, context.sessionContext);
+        return NotebookActions.run(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
     isEnabled
   });
   commands.addCommand(CommandIDs.runAndInsert, {
-    label: trans.__('Run Selected Cells and Insert Below'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Run Selected Cell and Insert Below',
+        'Run Selected Cells and Insert Below',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.runAndInsert(content, context.sessionContext);
+        return NotebookActions.runAndInsert(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
     isEnabled
   });
   commands.addCommand(CommandIDs.runAll, {
     label: trans.__('Run All Cells'),
+    caption: trans.__('Run all cells'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.runAll(content, context.sessionContext);
+        return NotebookActions.runAll(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
     isEnabled
@@ -1673,7 +2266,12 @@ function addCommands(
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.runAllAbove(content, context.sessionContext);
+        return NotebookActions.runAllAbove(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
     isEnabled: () => {
@@ -1693,7 +2291,12 @@ function addCommands(
       if (current) {
         const { context, content } = current;
 
-        return NotebookActions.runAllBelow(content, context.sessionContext);
+        return NotebookActions.runAllBelow(
+          content,
+          context.sessionContext,
+          sessionDialogs,
+          translator
+        );
       }
     },
     isEnabled: () => {
@@ -1711,28 +2314,40 @@ function addCommands(
     execute: args => {
       const current = getCurrent(tracker, shell, args);
       if (current) {
-        const { context, content } = current;
-        return NotebookActions.renderAllMarkdown(
-          content,
-          context.sessionContext
-        );
+        const { content } = current;
+        return NotebookActions.renderAllMarkdown(content);
       }
     },
     isEnabled
   });
   commands.addCommand(CommandIDs.restart, {
     label: trans.__('Restart Kernel…'),
+    caption: trans.__('Restart the kernel'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
-        return sessionDialogs!.restart(current.sessionContext, translator);
+        return sessionDialogs.restart(current.sessionContext);
       }
     },
+    isEnabled: args => (args.toolbar ? true : isEnabled()),
+    icon: args => (args.toolbar ? refreshIcon : undefined)
+  });
+  commands.addCommand(CommandIDs.shutdown, {
+    label: trans.__('Shut Down Kernel'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (!current) {
+        return;
+      }
+
+      return current.context.sessionContext.shutdown();
+    },
     isEnabled
   });
   commands.addCommand(CommandIDs.closeAndShutdown, {
-    label: trans.__('Close and Shut Down'),
+    label: trans.__('Close and Shut Down Notebook'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1748,9 +2363,11 @@ function addCommands(
         buttons: [Dialog.cancelButton(), Dialog.warnButton()]
       }).then(result => {
         if (result.button.accept) {
-          return current.context.sessionContext.shutdown().then(() => {
-            current.dispose();
-          });
+          return commands
+            .execute(CommandIDs.shutdown, { activate: false })
+            .then(() => {
+              current.dispose();
+            });
         }
       });
     },
@@ -1768,66 +2385,53 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.restartClear, {
-    label: trans.__('Restart Kernel and Clear All Outputs…'),
-    execute: args => {
-      const current = getCurrent(tracker, shell, args);
-
-      if (current) {
-        const { content, sessionContext } = current;
-
-        return sessionDialogs!.restart(sessionContext, translator).then(() => {
-          NotebookActions.clearAllOutputs(content);
-        });
+    label: trans.__('Restart Kernel and Clear Outputs of All Cells…'),
+    caption: trans.__('Restart the kernel and clear all outputs of all cells'),
+    execute: async () => {
+      const restarted: boolean = await commands.execute(CommandIDs.restart, {
+        activate: false
+      });
+      if (restarted) {
+        await commands.execute(CommandIDs.clearAllOutputs);
       }
     },
     isEnabled
   });
   commands.addCommand(CommandIDs.restartAndRunToSelected, {
     label: trans.__('Restart Kernel and Run up to Selected Cell…'),
-    execute: args => {
-      const current = getCurrent(tracker, shell, args);
-      if (current) {
-        const { context, content } = current;
-        return sessionDialogs!
-          .restart(current.sessionContext, translator)
-          .then(restarted => {
-            if (restarted) {
-              void NotebookActions.runAllAbove(
-                content,
-                context.sessionContext
-              ).then(executed => {
-                if (executed || content.activeCellIndex === 0) {
-                  void NotebookActions.run(content, context.sessionContext);
-                }
-              });
-            }
-          });
+    execute: async () => {
+      const restarted: boolean = await commands.execute(CommandIDs.restart, {
+        activate: false
+      });
+      if (restarted) {
+        const executed: boolean = await commands.execute(
+          CommandIDs.runAllAbove,
+          { activate: false }
+        );
+        if (executed) {
+          return commands.execute(CommandIDs.run);
+        }
       }
     },
     isEnabled: isEnabledAndSingleSelected
   });
   commands.addCommand(CommandIDs.restartRunAll, {
     label: trans.__('Restart Kernel and Run All Cells…'),
-    execute: args => {
-      const current = getCurrent(tracker, shell, args);
-
-      if (current) {
-        const { context, content, sessionContext } = current;
-
-        return sessionDialogs!
-          .restart(sessionContext, translator)
-          .then(restarted => {
-            if (restarted) {
-              void NotebookActions.runAll(content, context.sessionContext);
-            }
-            return restarted;
-          });
+    caption: trans.__('Restart the kernel and run all cells'),
+    execute: async () => {
+      const restarted: boolean = await commands.execute(CommandIDs.restart, {
+        activate: false
+      });
+      if (restarted) {
+        await commands.execute(CommandIDs.runAll);
       }
     },
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled()),
+    icon: args => (args.toolbar ? fastForwardIcon : undefined)
   });
   commands.addCommand(CommandIDs.clearAllOutputs, {
-    label: trans.__('Clear All Outputs'),
+    label: trans.__('Clear Outputs of All Cells'),
+    caption: trans.__('Clear all outputs of all cells'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1838,7 +2442,8 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.clearOutputs, {
-    label: trans.__('Clear Outputs'),
+    label: trans.__('Clear Cell Output'),
+    caption: trans.__('Clear outputs for the selected cells'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1850,6 +2455,7 @@ function addCommands(
   });
   commands.addCommand(CommandIDs.interrupt, {
     label: trans.__('Interrupt Kernel'),
+    caption: trans.__('Interrupt the kernel'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1863,7 +2469,8 @@ function addCommands(
         return kernel.interrupt();
       }
     },
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled()),
+    icon: args => (args.toolbar ? stopIcon : undefined)
   });
   commands.addCommand(CommandIDs.toCode, {
     label: trans.__('Change to Code Cell Type'),
@@ -1899,8 +2506,22 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.cut, {
-    label: trans.__('Cut Cells'),
-    caption: trans.__('Cut the selected cells'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Cut Cell',
+        'Cut Cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Cut this cell',
+        'Cut these %1 cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1909,11 +2530,25 @@ function addCommands(
       }
     },
     icon: args => (args.toolbar ? cutIcon : undefined),
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.copy, {
-    label: trans.__('Copy Cells'),
-    caption: trans.__('Copy the selected cells'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Copy Cell',
+        'Copy Cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Copy this cell',
+        'Copy these %1 cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1921,12 +2556,26 @@ function addCommands(
         return NotebookActions.copy(current.content);
       }
     },
-    icon: args => (args.toolbar ? copyIcon : ''),
-    isEnabled
+    icon: args => (args.toolbar ? copyIcon : undefined),
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.pasteBelow, {
-    label: trans.__('Paste Cells Below'),
-    caption: trans.__('Paste cells from the clipboard'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Paste Cell Below',
+        'Paste Cells Below',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Paste this cell from the clipboard',
+        'Paste these %1 cells from the clipboard',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1935,10 +2584,25 @@ function addCommands(
       }
     },
     icon: args => (args.toolbar ? pasteIcon : undefined),
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.pasteAbove, {
-    label: trans.__('Paste Cells Above'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Paste Cell Above',
+        'Paste Cells Above',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Paste this cell from the clipboard',
+        'Paste these %1 cells from the clipboard',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1949,10 +2613,22 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.duplicateBelow, {
-    label: trans.__('Duplicate Cells Below'),
-    caption: trans.__(
-      'Copy the selected cells and paste them below the selection'
-    ),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Duplicate Cell Below',
+        'Duplicate Cells Below',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Create a duplicate of this cell below',
+        'Create duplicates of %1 cells below',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1960,11 +2636,18 @@ function addCommands(
         NotebookActions.duplicate(current.content, 'belowSelected');
       }
     },
-    icon: args => (args.toolbar ? duplicateIcon : ''),
-    isEnabled
+    icon: args => (args.toolbar ? duplicateIcon : undefined),
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.pasteAndReplace, {
-    label: trans.__('Paste Cells and Replace'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Paste Cell and Replace',
+        'Paste Cells and Replace',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1975,7 +2658,23 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.deleteCell, {
-    label: trans.__('Delete Cells'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Delete Cell',
+        'Delete Cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Delete this cell',
+        'Delete these %1 cells',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -1983,7 +2682,7 @@ function addCommands(
         return NotebookActions.deleteCells(current.content);
       }
     },
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.split, {
     label: trans.__('Split Cell'),
@@ -2031,6 +2730,7 @@ function addCommands(
   });
   commands.addCommand(CommandIDs.insertAbove, {
     label: trans.__('Insert Cell Above'),
+    caption: trans.__('Insert a cell above'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -2039,7 +2739,7 @@ function addCommands(
       }
     },
     icon: args => (args.toolbar ? addAboveIcon : undefined),
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.insertBelow, {
     label: trans.__('Insert Cell Below'),
@@ -2052,7 +2752,7 @@ function addCommands(
       }
     },
     icon: args => (args.toolbar ? addBelowIcon : undefined),
-    isEnabled
+    isEnabled: args => (args.toolbar ? true : isEnabled())
   });
   commands.addCommand(CommandIDs.selectAbove, {
     label: trans.__('Select Cell Above'),
@@ -2069,13 +2769,60 @@ function addCommands(
     label: trans.__('Select Cell Below'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
-
       if (current) {
         return NotebookActions.selectBelow(current.content);
       }
     },
     isEnabled
   });
+  commands.addCommand(CommandIDs.insertHeadingAbove, {
+    label: trans.__('Insert Heading Above Current Heading'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        return NotebookActions.insertSameLevelHeadingAbove(current.content);
+      }
+    },
+    isEnabled
+  });
+  commands.addCommand(CommandIDs.insertHeadingBelow, {
+    label: trans.__('Insert Heading Below Current Heading'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        return NotebookActions.insertSameLevelHeadingBelow(current.content);
+      }
+    },
+    isEnabled
+  });
+  commands.addCommand(CommandIDs.selectHeadingAboveOrCollapse, {
+    label: trans.__('Select Heading Above or Collapse Heading'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        return NotebookActions.selectHeadingAboveOrCollapseHeading(
+          current.content
+        );
+      }
+    },
+    isEnabled
+  });
+  commands.addCommand(CommandIDs.selectHeadingBelowOrExpand, {
+    label: trans.__('Select Heading Below or Expand Heading'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        return NotebookActions.selectHeadingBelowOrExpandHeading(
+          current.content
+        );
+      }
+    },
+    isEnabled
+  });
   commands.addCommand(CommandIDs.extendAbove, {
     label: trans.__('Extend Selection Above'),
     execute: args => {
@@ -2143,31 +2890,83 @@ function addCommands(
     isEnabled
   });
   commands.addCommand(CommandIDs.moveUp, {
-    label: trans.__('Move Cells Up'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Move Cell Up',
+        'Move Cells Up',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Move this cell up',
+        'Move these %1 cells up',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
-        return NotebookActions.moveUp(current.content);
+        NotebookActions.moveUp(current.content);
+        Private.raiseSilentNotification(
+          trans.__('Notebook cell shifted up successfully'),
+          current.node
+        );
       }
     },
-    isEnabled,
+    isEnabled: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      if (!current) {
+        return false;
+      }
+      return current.content.activeCellIndex >= 1;
+    },
     icon: args => (args.toolbar ? moveUpIcon : undefined)
   });
   commands.addCommand(CommandIDs.moveDown, {
-    label: trans.__('Move Cells Down'),
+    label: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Move Cell Down',
+        'Move Cells Down',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
+    caption: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      return trans._n(
+        'Move this cell down',
+        'Move these %1 cells down',
+        current?.content.selectedCells.length ?? 1
+      );
+    },
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
-        return NotebookActions.moveDown(current.content);
+        NotebookActions.moveDown(current.content);
+        Private.raiseSilentNotification(
+          trans.__('Notebook cell shifted down successfully'),
+          current.node
+        );
       }
     },
-    isEnabled,
+    isEnabled: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      if (!current || !current.content.model) {
+        return false;
+      }
+
+      const length = current.content.model.cells.length;
+      return current.content.activeCellIndex < length - 1;
+    },
     icon: args => (args.toolbar ? moveDownIcon : undefined)
   });
   commands.addCommand(CommandIDs.toggleAllLines, {
-    label: trans.__('Toggle All Line Numbers'),
+    label: trans.__('Show Line Numbers'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -2175,7 +2974,20 @@ function addCommands(
         return NotebookActions.toggleAllLineNumbers(current.content);
       }
     },
-    isEnabled
+    isEnabled,
+    isToggled: args => {
+      const current = getCurrent(tracker, shell, { ...args, activate: false });
+      if (current) {
+        const config = current.content.editorConfig;
+        return !!(
+          config.code.lineNumbers &&
+          config.markdown.lineNumbers &&
+          config.raw.lineNumbers
+        );
+      } else {
+        return false;
+      }
+    }
   });
   commands.addCommand(CommandIDs.commandMode, {
     label: trans.__('Enter Command Mode'),
@@ -2221,22 +3033,58 @@ function addCommands(
     },
     isEnabled
   });
+  commands.addCommand(CommandIDs.redo, {
+    label: trans.__('Redo'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        const cell = current.content.activeCell;
+        if (cell) {
+          cell.inputHidden = false;
+          return cell.editor?.redo();
+        }
+      }
+    }
+  });
+  commands.addCommand(CommandIDs.undo, {
+    label: trans.__('Undo'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, args);
+
+      if (current) {
+        const cell = current.content.activeCell;
+        if (cell) {
+          cell.inputHidden = false;
+          return cell.editor?.undo();
+        }
+      }
+    }
+  });
   commands.addCommand(CommandIDs.changeKernel, {
     label: trans.__('Change Kernel…'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
       if (current) {
-        return sessionDialogs!.selectKernel(
-          current.context.sessionContext,
-          translator
-        );
+        return sessionDialogs.selectKernel(current.context.sessionContext);
+      }
+    },
+    isEnabled
+  });
+  commands.addCommand(CommandIDs.getKernel, {
+    label: trans.__('Get Kernel'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, { activate: false, ...args });
+
+      if (current) {
+        return current.sessionContext.session?.kernel;
       }
     },
     isEnabled
   });
   commands.addCommand(CommandIDs.reconnectToKernel, {
-    label: trans.__('Reconnect To Kernel'),
+    label: trans.__('Reconnect to Kernel'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
 
@@ -2473,8 +3321,9 @@ function addCommands(
     },
     isEnabled
   });
+
   commands.addCommand(CommandIDs.toggleCollapseCmd, {
-    label: 'Toggle Collapse Notebook Heading',
+    label: trans.__('Toggle Collapse Notebook Heading'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
       if (current) {
@@ -2484,16 +3333,16 @@ function addCommands(
     isEnabled: isEnabledAndHeadingSelected
   });
   commands.addCommand(CommandIDs.collapseAllCmd, {
-    label: 'Collapse All Cells',
+    label: trans.__('Collapse All Headings'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
       if (current) {
-        return NotebookActions.collapseAll(current.content);
+        return NotebookActions.collapseAllHeadings(current.content);
       }
     }
   });
   commands.addCommand(CommandIDs.expandAllCmd, {
-    label: 'Expand All Headings',
+    label: trans.__('Expand All Headings'),
     execute: args => {
       const current = getCurrent(tracker, shell, args);
       if (current) {
@@ -2501,6 +3350,48 @@ function addCommands(
       }
     }
   });
+
+  commands.addCommand(CommandIDs.tocRunCells, {
+    label: trans.__('Select and Run Cell(s) for this Heading'),
+    execute: args => {
+      const current = getCurrent(tracker, shell, { activate: false, ...args });
+      if (current === null) {
+        return;
+      }
+
+      const activeCell = current.content.activeCell;
+      let lastIndex = current.content.activeCellIndex;
+
+      if (activeCell instanceof MarkdownCell) {
+        const cells = current.content.widgets;
+        const level = activeCell.headingInfo.level;
+        for (
+          let i = current.content.activeCellIndex + 1;
+          i < cells.length;
+          i++
+        ) {
+          const cell = cells[i];
+          if (
+            cell instanceof MarkdownCell &&
+            // cell.headingInfo.level === -1 if no heading
+            cell.headingInfo.level >= 0 &&
+            cell.headingInfo.level <= level
+          ) {
+            break;
+          }
+          lastIndex = i;
+        }
+      }
+
+      current.content.extendContiguousSelectionTo(lastIndex);
+      void NotebookActions.run(
+        current.content,
+        current.sessionContext,
+        sessionDialogs,
+        translator
+      );
+    }
+  });
 }
 
 /**
@@ -2571,6 +3462,10 @@ function populatePalette(
     CommandIDs.insertBelow,
     CommandIDs.selectAbove,
     CommandIDs.selectBelow,
+    CommandIDs.selectHeadingAboveOrCollapse,
+    CommandIDs.selectHeadingBelowOrExpand,
+    CommandIDs.insertHeadingAbove,
+    CommandIDs.insertHeadingBelow,
     CommandIDs.extendAbove,
     CommandIDs.extendTop,
     CommandIDs.extendBelow,
@@ -2605,165 +3500,87 @@ function populatePalette(
 /**
  * Populates the application menus for the notebook.
  */
-function populateMenus(
-  app: JupyterFrontEnd,
-  mainMenu: IMainMenu,
-  tracker: INotebookTracker,
-  translator: ITranslator,
-  sessionDialogs: ISessionContextDialogs | null
-): void {
-  const trans = translator.load('jupyterlab');
-  const { commands } = app;
-  sessionDialogs = sessionDialogs || sessionContextDialogs;
-
+function populateMenus(mainMenu: IMainMenu, isEnabled: () => boolean): void {
   // Add undo/redo hooks to the edit menu.
-  mainMenu.editMenu.undoers.add({
-    tracker,
-    undo: widget => {
-      widget.content.activeCell?.editor.undo();
-    },
-    redo: widget => {
-      widget.content.activeCell?.editor.redo();
-    }
-  } as IEditMenu.IUndoer<NotebookPanel>);
+  mainMenu.editMenu.undoers.redo.add({
+    id: CommandIDs.redo,
+    isEnabled
+  });
+  mainMenu.editMenu.undoers.undo.add({
+    id: CommandIDs.undo,
+    isEnabled
+  });
 
   // Add a clearer to the edit menu
-  mainMenu.editMenu.clearers.add({
-    tracker,
-    clearCurrentLabel: (n: number) => trans.__('Clear Output'),
-    clearAllLabel: (n: number) => {
-      return trans.__('Clear All Outputs');
-    },
-    clearCurrent: (current: NotebookPanel) => {
-      return NotebookActions.clearOutputs(current.content);
-    },
-    clearAll: (current: NotebookPanel) => {
-      return NotebookActions.clearAllOutputs(current.content);
-    }
-  } as IEditMenu.IClearer<NotebookPanel>);
+  mainMenu.editMenu.clearers.clearAll.add({
+    id: CommandIDs.clearAllOutputs,
+    isEnabled
+  });
+  mainMenu.editMenu.clearers.clearCurrent.add({
+    id: CommandIDs.clearOutputs,
+    isEnabled
+  });
+
+  // Add a console creator the the Kernel menu
+  mainMenu.fileMenu.consoleCreators.add({
+    id: CommandIDs.createConsole,
+    isEnabled
+  });
 
   // Add a close and shutdown command to the file menu.
   mainMenu.fileMenu.closeAndCleaners.add({
-    tracker,
-    closeAndCleanupLabel: (n: number) =>
-      trans.__('Close and Shutdown Notebook'),
-    closeAndCleanup: (current: NotebookPanel) => {
-      const fileName = current.title.label;
-      return showDialog({
-        title: trans.__('Shut down the Notebook?'),
-        body: trans.__('Are you sure you want to close "%1"?', fileName),
-        buttons: [Dialog.cancelButton(), Dialog.warnButton()]
-      }).then(result => {
-        if (result.button.accept) {
-          return current.context.sessionContext.shutdown().then(() => {
-            current.dispose();
-          });
-        }
-      });
-    }
-  } as IFileMenu.ICloseAndCleaner<NotebookPanel>);
+    id: CommandIDs.closeAndShutdown,
+    isEnabled
+  });
 
   // Add a kernel user to the Kernel menu
-  mainMenu.kernelMenu.kernelUsers.add({
-    tracker,
-    interruptKernel: current => {
-      const kernel = current.sessionContext.session?.kernel;
-      if (kernel) {
-        return kernel.interrupt();
-      }
-      return Promise.resolve(void 0);
-    },
-    reconnectToKernel: current => {
-      const kernel = current.sessionContext.session?.kernel;
-      if (kernel) {
-        return kernel.reconnect();
-      }
-      return Promise.resolve(void 0);
-    },
-    restartKernelAndClearLabel: (n: number) =>
-      trans.__('Restart Kernel and Clear All Outputs…'),
-    restartKernel: current =>
-      sessionDialogs!.restart(current.sessionContext, translator),
-    restartKernelAndClear: current => {
-      return sessionDialogs!
-        .restart(current.sessionContext, translator)
-        .then(restarted => {
-          if (restarted) {
-            NotebookActions.clearAllOutputs(current.content);
-          }
-          return restarted;
-        });
-    },
-    changeKernel: current =>
-      sessionDialogs!.selectKernel(current.sessionContext, translator),
-    shutdownKernel: current => current.sessionContext.shutdown()
-  } as IKernelMenu.IKernelUser<NotebookPanel>);
-
-  // Add a console creator the the Kernel menu
-  mainMenu.fileMenu.consoleCreators.add({
-    tracker,
-    createConsoleLabel: (n: number) => trans.__('New Console for Notebook'),
-    createConsole: current => Private.createConsole(commands, current, true)
-  } as IFileMenu.IConsoleCreator<NotebookPanel>);
+  mainMenu.kernelMenu.kernelUsers.changeKernel.add({
+    id: CommandIDs.changeKernel,
+    isEnabled
+  });
+  mainMenu.kernelMenu.kernelUsers.clearWidget.add({
+    id: CommandIDs.clearAllOutputs,
+    isEnabled
+  });
+  mainMenu.kernelMenu.kernelUsers.interruptKernel.add({
+    id: CommandIDs.interrupt,
+    isEnabled
+  });
+  mainMenu.kernelMenu.kernelUsers.reconnectToKernel.add({
+    id: CommandIDs.reconnectToKernel,
+    isEnabled
+  });
+  mainMenu.kernelMenu.kernelUsers.restartKernel.add({
+    id: CommandIDs.restart,
+    isEnabled
+  });
+  mainMenu.kernelMenu.kernelUsers.shutdownKernel.add({
+    id: CommandIDs.shutdown,
+    isEnabled
+  });
 
   // Add an IEditorViewer to the application view menu
-  mainMenu.viewMenu.editorViewers.add({
-    tracker,
-    toggleLineNumbers: widget => {
-      NotebookActions.toggleAllLineNumbers(widget.content);
-    },
-    lineNumbersToggled: widget => {
-      const config = widget.content.editorConfig;
-      return !!(
-        config.code.lineNumbers &&
-        config.markdown.lineNumbers &&
-        config.raw.lineNumbers
-      );
-    }
-  } as IViewMenu.IEditorViewer<NotebookPanel>);
+  mainMenu.viewMenu.editorViewers.toggleLineNumbers.add({
+    id: CommandIDs.toggleAllLines,
+    isEnabled
+  });
 
   // Add an ICodeRunner to the application run menu
-  mainMenu.runMenu.codeRunners.add({
-    tracker,
-    runLabel: (n: number) => trans.__('Run Selected Cells'),
-    runCaption: (n: number) => trans.__('Run the selected cells and advance'),
-    runAllLabel: (n: number) => trans.__('Run All Cells'),
-    runAllCaption: (n: number) => trans.__('Run the all notebook cells'),
-    restartAndRunAllLabel: (n: number) =>
-      trans.__('Restart Kernel and Run All Cells…'),
-    restartAndRunAllCaption: (n: number) =>
-      trans.__('Restart the kernel, then re-run the whole notebook'),
-    run: current => {
-      const { context, content } = current;
-      return NotebookActions.runAndAdvance(
-        content,
-        context.sessionContext
-      ).then(() => void 0);
-    },
-    runAll: current => {
-      const { context, content } = current;
-      return NotebookActions.runAll(content, context.sessionContext).then(
-        () => void 0
-      );
-    },
-    restartAndRunAll: current => {
-      const { context, content } = current;
-      return sessionDialogs!
-        .restart(context.sessionContext, translator)
-        .then(restarted => {
-          if (restarted) {
-            void NotebookActions.runAll(content, context.sessionContext);
-          }
-          return restarted;
-        });
-    }
-  } as IRunMenu.ICodeRunner<NotebookPanel>);
+  mainMenu.runMenu.codeRunners.restart.add({
+    id: CommandIDs.restart,
+    isEnabled
+  });
+  mainMenu.runMenu.codeRunners.run.add({
+    id: CommandIDs.runAndAdvance,
+    isEnabled
+  });
+  mainMenu.runMenu.codeRunners.runAll.add({ id: CommandIDs.runAll, isEnabled });
 
   // Add kernel information to the application help menu.
-  mainMenu.helpMenu.kernelUsers.add({
-    tracker,
-    getKernel: current => current.sessionContext.session?.kernel
-  } as IHelpMenu.IKernelUser<NotebookPanel>);
+  mainMenu.helpMenu.getKernel.add({
+    id: CommandIDs.getKernel,
+    isEnabled
+  });
 }
 
 /**
@@ -2787,7 +3604,8 @@ namespace Private {
       preferredLanguage: widget.context.model.defaultKernelLanguage,
       activate: activate,
       ref: widget.id,
-      insertMode: 'split-bottom'
+      insertMode: 'split-bottom',
+      type: 'Linked Console'
     };
 
     return commands.execute('console:create', options);
@@ -2856,9 +3674,7 @@ namespace Private {
   /**
    * The default Export To ... formats and their human readable labels.
    */
-  export function getFormatLabels(
-    translator: ITranslator
-  ): {
+  export function getFormatLabels(translator: ITranslator): {
     [k: string]: string;
   } {
     translator = translator || nullTranslator;
@@ -2874,6 +3690,42 @@ namespace Private {
     };
   }
 
+  /**
+   * Raises a silent notification that is read by screen readers
+   *
+   * FIXME: Once a notificatiom API is introduced (https://github.com/jupyterlab/jupyterlab/issues/689),
+   * this can be refactored to use the same.
+   *
+   * More discussion at https://github.com/jupyterlab/jupyterlab/pull/9031#issuecomment-773541469
+   *
+   *
+   * @param message Message to be relayed to screen readers
+   * @param notebookNode DOM node to which the notification container is attached
+   */
+  export function raiseSilentNotification(
+    message: string,
+    notebookNode: HTMLElement
+  ): void {
+    const hiddenAlertContainerId = `sr-message-container-${notebookNode.id}`;
+
+    const hiddenAlertContainer =
+      document.getElementById(hiddenAlertContainerId) ||
+      document.createElement('div');
+
+    // If the container is not available, append the newly created container
+    // to the current notebook panel and set related properties
+    if (hiddenAlertContainer.getAttribute('id') !== hiddenAlertContainerId) {
+      hiddenAlertContainer.classList.add('sr-only');
+      hiddenAlertContainer.setAttribute('id', hiddenAlertContainerId);
+      hiddenAlertContainer.setAttribute('role', 'alert');
+      hiddenAlertContainer.hidden = true;
+      notebookNode.appendChild(hiddenAlertContainer);
+    }
+
+    // Insert/Update alert container with the notification message
+    hiddenAlertContainer.innerText = message;
+  }
+
   /**
    * A widget hosting a cloned output area.
    */
diff --git a/packages/notebook-extension/src/nboutput.ts b/packages/notebook-extension/src/nboutput.ts
index 68bfcda351cb..4a7fbf2fac1b 100644
--- a/packages/notebook-extension/src/nboutput.ts
+++ b/packages/notebook-extension/src/nboutput.ts
@@ -16,6 +16,7 @@ import { KernelMessage } from '@jupyterlab/services';
 export const logNotebookOutput: JupyterFrontEndPlugin<void> = {
   activate: activateNBOutput,
   id: '@jupyterlab/notebook-extension:log-output',
+  description: 'Adds cell outputs log to the application logger.',
   requires: [INotebookTracker],
   optional: [ILoggerRegistry],
   autoStart: true
@@ -25,7 +26,7 @@ function activateNBOutput(
   app: JupyterFrontEnd,
   nbtracker: INotebookTracker,
   loggerRegistry: ILoggerRegistry | null
-) {
+): void {
   if (!loggerRegistry) {
     // Automatically disable if logconsole is missing
     return;
diff --git a/packages/notebook-extension/src/tool-widgets/activeCellToolWidget.tsx b/packages/notebook-extension/src/tool-widgets/activeCellToolWidget.tsx
new file mode 100644
index 000000000000..bde3253207cb
--- /dev/null
+++ b/packages/notebook-extension/src/tool-widgets/activeCellToolWidget.tsx
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+import { FieldProps } from '@rjsf/utils';
+import { IEditorLanguageRegistry } from '@jupyterlab/codemirror';
+import { INotebookTracker, NotebookTools } from '@jupyterlab/notebook';
+import { ISharedText } from '@jupyter/ydoc';
+import { PanelLayout, Widget } from '@lumino/widgets';
+import { CodeCellModel, ICellModel, InputPrompt } from '@jupyterlab/cells';
+import { Debouncer } from '@lumino/polling';
+
+/**
+ * The class name added to the ActiveCellTool.
+ */
+const ACTIVE_CELL_TOOL_CLASS = 'jp-ActiveCellTool';
+/**
+ * The class name added to the ActiveCellTool content.
+ */
+const ACTIVE_CELL_TOOL_CONTENT_CLASS = 'jp-ActiveCellTool-Content';
+/**
+ * The class name added to the ActiveCellTool cell content.
+ */
+const ACTIVE_CELL_TOOL_CELL_CONTENT_CLASS = 'jp-ActiveCellTool-CellContent';
+
+namespace Private {
+  /**
+   * Custom active cell field options.
+   */
+  export interface IOptions {
+    /**
+     * The tracker to the notebook panel.
+     */
+    tracker: INotebookTracker;
+
+    /**
+     * Editor languages registry
+     */
+    languages: IEditorLanguageRegistry;
+  }
+}
+
+/**
+ * The active cell field, displaying the first line and execution count of the active cell.
+ *
+ * ## Note
+ * This field does not work as other metadata form fields, as it does not update metadata.
+ */
+export class ActiveCellTool extends NotebookTools.Tool {
+  constructor(options: Private.IOptions) {
+    super();
+    const { languages } = options;
+    this._tracker = options.tracker;
+
+    this.addClass(ACTIVE_CELL_TOOL_CLASS);
+    this.layout = new PanelLayout();
+
+    this._inputPrompt = new InputPrompt();
+    (this.layout as PanelLayout).addWidget(this._inputPrompt);
+
+    // First code line container
+    const node = document.createElement('div');
+    node.classList.add(ACTIVE_CELL_TOOL_CONTENT_CLASS);
+    const container = node.appendChild(document.createElement('div'));
+    const editor = container.appendChild(document.createElement('pre'));
+    container.className = ACTIVE_CELL_TOOL_CELL_CONTENT_CLASS;
+    this._editorEl = editor;
+    (this.layout as PanelLayout).addWidget(new Widget({ node }));
+
+    const update = async () => {
+      this._editorEl.innerHTML = '';
+      if (this._cellModel?.type === 'code') {
+        this._inputPrompt.executionCount = `${
+          (this._cellModel as CodeCellModel).executionCount ?? ''
+        }`;
+        this._inputPrompt.show();
+      } else {
+        this._inputPrompt.executionCount = null;
+        this._inputPrompt.hide();
+      }
+
+      if (this._cellModel) {
+        await languages.highlight(
+          this._cellModel.sharedModel.getSource().split('\n')[0],
+          languages.findByMIME(this._cellModel.mimeType),
+          this._editorEl
+        );
+      }
+    };
+
+    this._refreshDebouncer = new Debouncer(update, 150);
+  }
+
+  render(props: FieldProps): JSX.Element {
+    const activeCell = this._tracker.activeCell;
+    if (activeCell) this._cellModel = activeCell?.model || null;
+    (this._cellModel?.sharedModel as ISharedText).changed.connect(
+      this.refresh,
+      this
+    );
+    this._cellModel?.mimeTypeChanged.connect(this.refresh, this);
+    this.refresh()
+      .then(() => undefined)
+      .catch(() => undefined);
+    return <div ref={ref => ref?.appendChild(this.node)}></div>;
+  }
+
+  private async refresh(): Promise<void> {
+    await this._refreshDebouncer.invoke();
+  }
+
+  private _tracker: INotebookTracker;
+  private _cellModel: ICellModel | null;
+  private _refreshDebouncer: Debouncer<void, void, null[]>;
+  private _editorEl: HTMLPreElement;
+  private _inputPrompt: InputPrompt;
+}
diff --git a/packages/notebook-extension/src/tool-widgets/metadataEditorFields.tsx b/packages/notebook-extension/src/tool-widgets/metadataEditorFields.tsx
new file mode 100644
index 000000000000..9988d44ed4a5
--- /dev/null
+++ b/packages/notebook-extension/src/tool-widgets/metadataEditorFields.tsx
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+import { FieldProps } from '@rjsf/utils';
+import { INotebookTracker, NotebookTools } from '@jupyterlab/notebook';
+import { ITranslator } from '@jupyterlab/translation';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import { ObservableJSON } from '@jupyterlab/observables';
+import { JSONObject } from '@lumino/coreutils';
+
+const CELL_METADATA_EDITOR_CLASS = 'jp-CellMetadataEditor';
+const NOTEBOOK_METADATA_EDITOR_CLASS = 'jp-NotebookMetadataEditor';
+
+namespace Private {
+  /**
+   * Custom metadata field options.
+   */
+  export interface IOptions {
+    /**
+     * The editor factory used by the tool.
+     */
+    editorFactory: CodeEditor.Factory;
+
+    /**
+     * The tracker to the notebook panel.
+     */
+    tracker: INotebookTracker;
+
+    /**
+     * The label of the JSON editor.
+     */
+    label?: string;
+
+    /**
+     * Language translator.
+     */
+    translator?: ITranslator;
+  }
+}
+
+/**
+ * The cell metadata field.
+ *
+ * ## Note
+ * This field does not work as other metadata form fields, as it does not use RJSF to update metadata.
+ * It extends the MetadataEditorTool which updates itself the metadata.
+ * It only renders the node of MetadataEditorTool in a React element instead of displaying a RJSF field.
+ */
+export class CellMetadataField extends NotebookTools.MetadataEditorTool {
+  constructor(options: Private.IOptions) {
+    super(options);
+    this._tracker = options.tracker;
+
+    this.editor.editorHostNode.addEventListener('blur', this.editor, true);
+    this.editor.editorHostNode.addEventListener('click', this.editor, true);
+    this.editor.headerNode.addEventListener('click', this.editor);
+  }
+
+  private _onSourceChanged() {
+    if (this.editor.source) {
+      this._tracker.activeCell?.model.sharedModel.setMetadata(
+        this.editor.source.toJSON()
+      );
+    }
+  }
+
+  render(props: FieldProps): JSX.Element {
+    const cell = this._tracker.activeCell;
+    this.editor.source = cell
+      ? new ObservableJSON({ values: cell.model.metadata as JSONObject })
+      : null;
+    this.editor.source?.changed.connect(this._onSourceChanged, this);
+
+    return (
+      <div className={CELL_METADATA_EDITOR_CLASS}>
+        <div ref={ref => ref?.appendChild(this.node)}></div>
+      </div>
+    );
+  }
+
+  private _tracker: INotebookTracker;
+}
+
+/**
+ * The notebook metadata field.
+ *
+ * ## Note
+ * This field does not work as other metadata form fields, as it does not use RJSF to update metadata.
+ * It extends the MetadataEditorTool which updates itself the metadata.
+ * It only renders the node of MetadataEditorTool in a React element instead of displaying a RJSF field.
+ */
+export class NotebookMetadataField extends NotebookTools.MetadataEditorTool {
+  constructor(options: Private.IOptions) {
+    super(options);
+    this._tracker = options.tracker;
+
+    this.editor.editorHostNode.addEventListener('blur', this.editor, true);
+    this.editor.editorHostNode.addEventListener('click', this.editor, true);
+    this.editor.headerNode.addEventListener('click', this.editor);
+  }
+
+  private _onSourceChanged() {
+    if (this.editor.source) {
+      this._tracker.currentWidget?.model?.sharedModel.setMetadata(
+        this.editor.source.toJSON()
+      );
+    }
+  }
+
+  render(props: FieldProps): JSX.Element {
+    const notebook = this._tracker.currentWidget;
+    this.editor.source = notebook
+      ? new ObservableJSON({ values: notebook.model?.metadata as JSONObject })
+      : null;
+    this.editor.source?.changed.connect(this._onSourceChanged, this);
+
+    return (
+      <div className={NOTEBOOK_METADATA_EDITOR_CLASS}>
+        <div ref={ref => ref?.appendChild(this.node)}></div>
+      </div>
+    );
+  }
+
+  private _tracker: INotebookTracker;
+}
diff --git a/packages/notebook-extension/style/index.css b/packages/notebook-extension/style/index.css
index 3e4db32dee43..343d996788d0 100644
--- a/packages/notebook-extension/style/index.css
+++ b/packages/notebook-extension/style/index.css
@@ -6,18 +6,24 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
+@import url('~@jupyterlab/documentsearch/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/docmanager/style/index.css');
 @import url('~@jupyterlab/filebrowser/style/index.css');
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('~@jupyterlab/cells/style/index.css');
+@import url('~@jupyterlab/completer/style/index.css');
 @import url('~@jupyterlab/docmanager-extension/style/index.css');
 @import url('~@jupyterlab/launcher/style/index.css');
 @import url('~@jupyterlab/logconsole/style/index.css');
+@import url('~@jupyterlab/lsp/style/index.css');
 @import url('~@jupyterlab/mainmenu/style/index.css');
 @import url('~@jupyterlab/notebook/style/index.css');
+@import url('~@jupyterlab/metadataform/style/index.css');
 @import url('~@jupyterlab/property-inspector/style/index.css');
diff --git a/packages/notebook-extension/style/index.js b/packages/notebook-extension/style/index.js
index 93cee8e2cc03..2228a4079742 100644
--- a/packages/notebook-extension/style/index.js
+++ b/packages/notebook-extension/style/index.js
@@ -6,18 +6,24 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
 import '@jupyterlab/application/style/index.js';
+import '@jupyterlab/documentsearch/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/docmanager/style/index.js';
 import '@jupyterlab/filebrowser/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 import '@jupyterlab/cells/style/index.js';
+import '@jupyterlab/completer/style/index.js';
 import '@jupyterlab/docmanager-extension/style/index.js';
 import '@jupyterlab/launcher/style/index.js';
 import '@jupyterlab/logconsole/style/index.js';
+import '@jupyterlab/lsp/style/index.js';
 import '@jupyterlab/mainmenu/style/index.js';
 import '@jupyterlab/notebook/style/index.js';
+import '@jupyterlab/metadataform/style/index.js';
 import '@jupyterlab/property-inspector/style/index.js';
diff --git a/packages/notebook-extension/tsconfig.json b/packages/notebook-extension/tsconfig.json
index bbef527fa669..0f0f16f252bc 100644
--- a/packages/notebook-extension/tsconfig.json
+++ b/packages/notebook-extension/tsconfig.json
@@ -4,7 +4,7 @@
     "outDir": "lib",
     "rootDir": "src"
   },
-  "include": ["src/*"],
+  "include": ["src/**/*"],
   "references": [
     {
       "path": "../application"
@@ -18,6 +18,12 @@
     {
       "path": "../codeeditor"
     },
+    {
+      "path": "../codemirror"
+    },
+    {
+      "path": "../completer"
+    },
     {
       "path": "../coreutils"
     },
@@ -30,6 +36,9 @@
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../documentsearch"
+    },
     {
       "path": "../filebrowser"
     },
@@ -39,9 +48,15 @@
     {
       "path": "../logconsole"
     },
+    {
+      "path": "../lsp"
+    },
     {
       "path": "../mainmenu"
     },
+    {
+      "path": "../metadataform"
+    },
     {
       "path": "../nbformat"
     },
@@ -69,6 +84,9 @@
     {
       "path": "../statusbar"
     },
+    {
+      "path": "../toc"
+    },
     {
       "path": "../translation"
     },
diff --git a/packages/notebook/.vscode/launch.json b/packages/notebook/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/notebook/.vscode/launch.json
+++ b/packages/notebook/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/notebook/babel.config.js b/packages/notebook/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/notebook/babel.config.js
+++ b/packages/notebook/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/notebook/fonts/icomoon.svg b/packages/notebook/fonts/icomoon.svg
old mode 100755
new mode 100644
index 8c55ae9fc5f0..76d1d084fd51
--- a/packages/notebook/fonts/icomoon.svg
+++ b/packages/notebook/fonts/icomoon.svg
@@ -20,4 +20,4 @@
 <glyph unicode="&#xe90a;" glyph-name="newcell" d="M1024 374.857h-438.857v-438.857h-146.286v438.857h-438.857v146.286h438.857v438.857h146.286v-438.857h438.857v-146.286z" />
 <glyph unicode="&#xe90b;" glyph-name="save" d="M796.444 963.615h-682.667c-62.862 0-113.778-51.275-113.778-114.581v-802.068c0-63.306 50.916-114.581 113.778-114.581h796.444c62.862 0 113.778 51.275 113.778 114.581v687.487l-227.556 229.162zM512 46.966c-94.151 0-170.667 77.056-170.667 171.872s76.516 171.872 170.667 171.872c94.151 0 170.667-77.056 170.667-171.872s-76.516-171.872-170.667-171.872v0zM682.667 619.872h-568.889v229.162h568.889v-229.162z" />
 <glyph unicode="&#xe90c;" glyph-name="RestartNotebook" d="M512 780.8v179.2l-220-224 220-224v179.2c145.64 0 264-120.512 264-268.8s-118.36-268.8-264-268.8c-145.64 0-264 120.512-264 268.8h-88c0-198.016 157.52-358.4 352-358.4s352 160.384 352 358.4c0 198.016-157.52 358.4-352 358.4v0z" />
-</font></defs></svg>
\ No newline at end of file
+</font></defs></svg>
diff --git a/packages/notebook/jest.config.js b/packages/notebook/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/notebook/jest.config.js
+++ b/packages/notebook/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/notebook/package.json b/packages/notebook/package.json
index e5d17d36e388..01fb34abeff8 100644
--- a/packages/notebook/package.json
+++ b/packages/notebook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/notebook",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Notebook",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -22,58 +22,61 @@
     "lib": "lib/"
   },
   "files": [
-    "lib/*.d.ts",
-    "lib/*.js.map",
-    "lib/*.js",
+    "lib/*.{d.ts,js.map,js,json}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}",
+    "src/default.json"
   ],
   "scripts": {
     "build": "tsc -b",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "docs": "typedoc src",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test": "jest -i",
+    "test:cov": "jest -i --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "test:watch": "jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/shared-models": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/dragdrop": "^1.13.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/cells": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/codemirror": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/documentsearch": "^4.0.8",
+    "@jupyterlab/lsp": "^4.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/dragdrop": "^2.1.3",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/notebook/src/actions.tsx b/packages/notebook/src/actions.tsx
index 2ded18fde3ae..8e28ed24b0ca 100644
--- a/packages/notebook/src/actions.tsx
+++ b/packages/notebook/src/actions.tsx
@@ -5,7 +5,7 @@ import {
   Clipboard,
   Dialog,
   ISessionContext,
-  sessionContextDialogs,
+  ISessionContextDialogs,
   showDialog
 } from '@jupyterlab/apputils';
 import {
@@ -13,21 +13,21 @@ import {
   CodeCell,
   ICellModel,
   ICodeCellModel,
-  isCodeCellModel,
   isMarkdownCellModel,
   isRawCellModel,
   MarkdownCell
 } from '@jupyterlab/cells';
+import { signalToPromise } from '@jupyterlab/coreutils';
 import * as nbformat from '@jupyterlab/nbformat';
 import { KernelMessage } from '@jupyterlab/services';
+import { ISharedAttachmentsCell } from '@jupyter/ydoc';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { ArrayExt, each, findIndex, toArray } from '@lumino/algorithm';
+import { every, findIndex } from '@lumino/algorithm';
 import { JSONExt, JSONObject } from '@lumino/coreutils';
-import { ElementExt } from '@lumino/domutils';
 import { ISignal, Signal } from '@lumino/signaling';
 import * as React from 'react';
-import { INotebookModel } from './model';
 import { Notebook, StaticNotebook } from './widget';
+import { NotebookWindowedLayout } from './windowing';
 
 /**
  * The mimetype used for Jupyter cell data.
@@ -100,7 +100,7 @@ export class NotebookActions {
   }
 
   /**
-   * A signal that emits whenever a cell execution is scheduled.
+   * A signal that emits when one notebook's cells are all executed.
    */
   static get selectionExecuted(): ISignal<
     any,
@@ -150,10 +150,12 @@ export namespace NotebookActions {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     const state = Private.getState(notebook);
+    // We force the notebook back in edit mode as splitting a cell
+    // requires using the cursor position within a cell (aka it was recently in edit mode)
+    // However the focus may be stolen if the action is triggered
+    // from the menu entry; switching the notebook in command mode.
+    notebook.mode = 'edit';
 
     notebook.deselectAll();
 
@@ -161,8 +163,12 @@ export namespace NotebookActions {
     const index = notebook.activeCellIndex;
     const child = notebook.widgets[index];
     const editor = child.editor;
+    if (!editor) {
+      // TODO
+      return;
+    }
     const selections = editor.getSelections();
-    const orig = child.model.value.text;
+    const orig = child.model.sharedModel.getSource();
 
     const offsets = [0];
 
@@ -186,39 +192,35 @@ export namespace NotebookActions {
 
     offsets.push(orig.length);
 
-    const clones: ICellModel[] = [];
-    for (let i = 0; i + 1 < offsets.length; i++) {
-      const clone = Private.cloneCell(nbModel, child.model);
-      clones.push(clone);
-    }
-
-    for (let i = 0; i < clones.length; i++) {
-      if (i !== clones.length - 1 && clones[i].type === 'code') {
-        (clones[i] as ICodeCellModel).outputs.clear();
-      }
-      clones[i].value.text = orig
-        .slice(offsets[i], offsets[i + 1])
-        .replace(/^\n+/, '')
-        .replace(/\n+$/, '');
-    }
-
-    const cells = nbModel.cells;
+    const clones = offsets.slice(0, -1).map((offset, offsetIdx) => {
+      const { cell_type, metadata } = child.model.sharedModel.toJSON();
+
+      return {
+        cell_type,
+        metadata,
+        source: orig
+          .slice(offset, offsets[offsetIdx + 1])
+          .replace(/^\n+/, '')
+          .replace(/\n+$/, '')
+      };
+    });
 
-    cells.beginCompoundOperation();
-    for (let i = 0; i < clones.length; i++) {
-      if (i === 0) {
-        cells.set(index, clones[i]);
-      } else {
-        cells.insert(index + i, clones[i]);
-      }
-    }
-    cells.endCompoundOperation();
+    nbModel.sharedModel.transact(() => {
+      nbModel.sharedModel.deleteCell(index);
+      nbModel.sharedModel.insertCells(index, clones);
+    });
 
     // If there is a selection the selected cell will be activated
     const activeCellDelta = start !== end ? 2 : 1;
     notebook.activeCellIndex = index + clones.length - activeCellDelta;
-    const focusedEditor = notebook.activeCell.editor;
-    focusedEditor.focus();
+    notebook
+      .scrollToItem(notebook.activeCellIndex)
+      .then(() => {
+        notebook.activeCell?.editor!.focus();
+      })
+      .catch(reason => {
+        // no-op
+      });
 
     Private.handleState(notebook, state);
   }
@@ -248,12 +250,9 @@ export namespace NotebookActions {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     const state = Private.getState(notebook);
     const toMerge: string[] = [];
-    const toDelete: ICellModel[] = [];
+    const toDelete: number[] = [];
     const model = notebook.model;
     const cells = model.cells;
     const primary = notebook.activeCell;
@@ -263,9 +262,9 @@ export namespace NotebookActions {
     // Get the cells to merge.
     notebook.widgets.forEach((child, index) => {
       if (notebook.isSelectedOrActive(child)) {
-        toMerge.push(child.model.value.text);
+        toMerge.push(child.model.sharedModel.getSource());
         if (index !== active) {
-          toDelete.push(child.model);
+          toDelete.push(index);
         }
         // Collect attachments if the cell is a markdown cell or a raw cell
         const model = child.model;
@@ -288,8 +287,8 @@ export namespace NotebookActions {
         // Otherwise merge with the previous cell.
         const cellModel = cells.get(active - 1);
 
-        toMerge.unshift(cellModel.value.text);
-        toDelete.push(cellModel);
+        toMerge.unshift(cellModel.sharedModel.getSource());
+        toDelete.push(active - 1);
       } else if (mergeAbove === false) {
         // Bail if it is the last cell.
         if (active === cells.length - 1) {
@@ -298,31 +297,40 @@ export namespace NotebookActions {
         // Otherwise merge with the next cell.
         const cellModel = cells.get(active + 1);
 
-        toMerge.push(cellModel.value.text);
-        toDelete.push(cellModel);
+        toMerge.push(cellModel.sharedModel.getSource());
+        toDelete.push(active + 1);
       }
     }
 
     notebook.deselectAll();
 
-    // Create a new cell for the source to preserve history.
-    const newModel = Private.cloneCell(model, primary.model);
-
-    newModel.value.text = toMerge.join('\n\n');
-    if (isCodeCellModel(newModel)) {
-      newModel.outputs.clear();
-    } else if (isMarkdownCellModel(newModel) || isRawCellModel(newModel)) {
-      newModel.attachments.fromJSON(attachments);
-    }
+    const primaryModel = primary.model.sharedModel;
+    const { cell_type, metadata } = primaryModel.toJSON();
+    if (primaryModel.cell_type === 'code') {
+      // We can trust this cell because the outputs will be removed.
+      metadata.trusted = true;
+    }
+    const newModel = {
+      cell_type,
+      metadata,
+      source: toMerge.join('\n\n'),
+      attachments:
+        primaryModel.cell_type === 'markdown' ||
+        primaryModel.cell_type === 'raw'
+          ? attachments
+          : undefined
+    };
 
     // Make the changes while preserving history.
-    cells.beginCompoundOperation();
-    cells.set(active, newModel);
-    toDelete.forEach(cell => {
-      cells.removeValue(cell);
+    model.sharedModel.transact(() => {
+      model.sharedModel.deleteCell(active);
+      model.sharedModel.insertCell(active, newModel);
+      toDelete
+        .sort((a, b) => b - a)
+        .forEach(index => {
+          model.sharedModel.deleteCell(index);
+        });
     });
-    cells.endCompoundOperation();
-
     // If the original cell is a markdown cell, make sure
     // the new cell is unrendered.
     if (primary instanceof MarkdownCell) {
@@ -347,9 +355,6 @@ export namespace NotebookActions {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     const state = Private.getState(notebook);
 
     Private.deleteCells(notebook);
@@ -372,26 +377,22 @@ export namespace NotebookActions {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     const state = Private.getState(notebook);
     const model = notebook.model;
-    const cell = model.contentFactory.createCell(
-      notebook.notebookConfig.defaultCell,
-      {}
-    );
 
-    if (notebook.activeCell) {
-      const active = notebook.activeCellIndex;
-      model.cells.insert(active, cell);
-      // Make the newly inserted cell active.
-      notebook.activeCellIndex = active;
-    } else {
-      model.cells.insert(0, cell);
-      // Make the newly inserted cell active.
-      notebook.activeCellIndex = 0;
-    }
+    const newIndex = notebook.activeCell ? notebook.activeCellIndex : 0;
+    model.sharedModel.insertCell(newIndex, {
+      cell_type: notebook.notebookConfig.defaultCell,
+      metadata:
+        notebook.notebookConfig.defaultCell === 'code'
+          ? {
+              // This is an empty cell created by user, thus is trusted
+              trusted: true
+            }
+          : {}
+    });
+    // Make the newly inserted cell active.
+    notebook.activeCellIndex = newIndex;
 
     notebook.deselectAll();
     Private.handleState(notebook, state, true);
@@ -413,27 +414,53 @@ export namespace NotebookActions {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
+    const state = Private.getState(notebook);
+    const model = notebook.model;
+
+    const newIndex = notebook.activeCell ? notebook.activeCellIndex + 1 : 0;
+    model.sharedModel.insertCell(newIndex, {
+      cell_type: notebook.notebookConfig.defaultCell,
+      metadata:
+        notebook.notebookConfig.defaultCell === 'code'
+          ? {
+              // This is an empty cell created by user, thus is trusted
+              trusted: true
+            }
+          : {}
+    });
+    // Make the newly inserted cell active.
+    notebook.activeCellIndex = newIndex;
+
+    notebook.deselectAll();
+    Private.handleState(notebook, state, true);
+  }
+
+  function move(notebook: Notebook, shift: number): void {
+    if (!notebook.model || !notebook.activeCell) {
       return;
     }
+
     const state = Private.getState(notebook);
-    const model = notebook.model;
-    const cell = model.contentFactory.createCell(
-      notebook.notebookConfig.defaultCell,
-      {}
+
+    const firstIndex = notebook.widgets.findIndex(w =>
+      notebook.isSelectedOrActive(w)
     );
+    let lastIndex = notebook.widgets
+      .slice(firstIndex + 1)
+      .findIndex(w => !notebook.isSelectedOrActive(w));
 
-    if (notebook.activeCell) {
-      model.cells.insert(notebook.activeCellIndex + 1, cell);
-      // Make the newly inserted cell active.
-      notebook.activeCellIndex++;
+    if (lastIndex >= 0) {
+      lastIndex += firstIndex + 1;
     } else {
-      model.cells.insert(0, cell);
-      // Make the newly inserted cell active.
-      notebook.activeCellIndex = 0;
+      lastIndex = notebook.model.cells.length;
+    }
+
+    if (shift > 0) {
+      notebook.moveCell(firstIndex, lastIndex, lastIndex - firstIndex);
+    } else {
+      notebook.moveCell(firstIndex, firstIndex + shift, lastIndex - firstIndex);
     }
 
-    notebook.deselectAll();
     Private.handleState(notebook, state, true);
   }
 
@@ -443,66 +470,16 @@ export namespace NotebookActions {
    * @param notebook = The target notebook widget.
    */
   export function moveDown(notebook: Notebook): void {
-    if (!notebook.model || !notebook.activeCell) {
-      return;
-    }
-
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
-    const state = Private.getState(notebook);
-    const cells = notebook.model.cells;
-    const widgets = notebook.widgets;
-
-    cells.beginCompoundOperation();
-    for (let i = cells.length - 2; i > -1; i--) {
-      if (notebook.isSelectedOrActive(widgets[i])) {
-        if (!notebook.isSelectedOrActive(widgets[i + 1])) {
-          cells.move(i, i + 1);
-          if (notebook.activeCellIndex === i) {
-            notebook.activeCellIndex++;
-          }
-          notebook.select(widgets[i + 1]);
-          notebook.deselect(widgets[i]);
-        }
-      }
-    }
-    cells.endCompoundOperation();
-    Private.handleState(notebook, state, true);
+    move(notebook, 1);
   }
 
   /**
    * Move the selected cell(s) up.
    *
-   * @param widget - The target notebook widget.
+   * @param notebook - The target notebook widget.
    */
   export function moveUp(notebook: Notebook): void {
-    if (!notebook.model || !notebook.activeCell) {
-      return;
-    }
-
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
-    const state = Private.getState(notebook);
-    const cells = notebook.model.cells;
-    const widgets = notebook.widgets;
-
-    cells.beginCompoundOperation();
-    for (let i = 1; i < cells.length; i++) {
-      if (notebook.isSelectedOrActive(widgets[i])) {
-        if (!notebook.isSelectedOrActive(widgets[i - 1])) {
-          cells.move(i, i - 1);
-          if (notebook.activeCellIndex === i) {
-            notebook.activeCellIndex--;
-          }
-          notebook.select(widgets[i - 1]);
-          notebook.deselect(widgets[i]);
-        }
-      }
-    }
-    cells.endCompoundOperation();
-    Private.handleState(notebook, state, true);
+    move(notebook, -1);
   }
 
   /**
@@ -536,8 +513,9 @@ export namespace NotebookActions {
    * Run the selected cell(s).
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * The last selected cell will be activated, but not scrolled into view.
@@ -547,14 +525,21 @@ export namespace NotebookActions {
    */
   export function run(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
     }
 
     const state = Private.getState(notebook);
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
+    );
 
     Private.handleRunState(notebook, state, false);
     return promise;
@@ -564,8 +549,9 @@ export namespace NotebookActions {
    * Run the selected cell(s) and advance to the next cell.
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * The existing selection will be cleared.
@@ -575,33 +561,52 @@ export namespace NotebookActions {
    * If the last selected cell is the last cell, a new code cell
    * will be created in `'edit'` mode.  The new cell creation can be undone.
    */
-  export function runAndAdvance(
+  export async function runAndAdvance(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
     }
 
     const state = Private.getState(notebook);
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
+    );
     const model = notebook.model;
 
     if (notebook.activeCellIndex === notebook.widgets.length - 1) {
-      const cell = model.contentFactory.createCell(
-        notebook.notebookConfig.defaultCell,
-        {}
-      );
-
       // Do not use push here, as we want an widget insertion
       // to make sure no placeholder widget is rendered.
-      model.cells.insert(notebook.widgets.length, cell);
+      model.sharedModel.insertCell(notebook.widgets.length, {
+        cell_type: notebook.notebookConfig.defaultCell,
+        metadata:
+          notebook.notebookConfig.defaultCell === 'code'
+            ? {
+                // This is an empty cell created by user, thus is trusted
+                trusted: true
+              }
+            : {}
+      });
       notebook.activeCellIndex++;
+      if (notebook.activeCell?.inViewport === false) {
+        await signalToPromise(notebook.activeCell.inViewportChanged, 200).catch(
+          () => {
+            // no-op
+          }
+        );
+      }
       notebook.mode = 'edit';
     } else {
       notebook.activeCellIndex++;
     }
-    Private.handleRunState(notebook, state, true);
+
+    Private.handleState(notebook, state, true);
     return promise;
   }
 
@@ -609,8 +614,9 @@ export namespace NotebookActions {
    * Run the selected cell(s) and insert a new code cell.
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * An execution error will prevent the remaining code cells from executing.
@@ -620,29 +626,44 @@ export namespace NotebookActions {
    * The cell insert can be undone.
    * The new cell will be scrolled into view.
    */
-  export function runAndInsert(
+  export async function runAndInsert(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return Promise.resolve(false);
-    }
     const state = Private.getState(notebook);
-    const promise = Private.runSelected(notebook, sessionContext);
-    const model = notebook.model;
-    const cell = model.contentFactory.createCell(
-      notebook.notebookConfig.defaultCell,
-      {}
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
     );
-
-    model.cells.insert(notebook.activeCellIndex + 1, cell);
+    const model = notebook.model;
+    model.sharedModel.insertCell(notebook.activeCellIndex + 1, {
+      cell_type: notebook.notebookConfig.defaultCell,
+      metadata:
+        notebook.notebookConfig.defaultCell === 'code'
+          ? {
+              // This is an empty cell created by user, thus is trusted
+              trusted: true
+            }
+          : {}
+    });
     notebook.activeCellIndex++;
+    if (notebook.activeCell?.inViewport === false) {
+      await signalToPromise(notebook.activeCell.inViewportChanged, 200).catch(
+        () => {
+          // no-op
+        }
+      );
+    }
     notebook.mode = 'edit';
-    Private.handleRunState(notebook, state, true);
+    Private.handleState(notebook, state, true);
     return promise;
   }
 
@@ -650,8 +671,9 @@ export namespace NotebookActions {
    * Run all of the cells in the notebook.
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * The existing selection will be cleared.
@@ -661,7 +683,9 @@ export namespace NotebookActions {
    */
   export function runAll(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
@@ -673,16 +697,18 @@ export namespace NotebookActions {
       notebook.select(child);
     });
 
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
+    );
 
     Private.handleRunState(notebook, state, true);
     return promise;
   }
 
-  export function renderAllMarkdown(
-    notebook: Notebook,
-    sessionContext?: ISessionContext
-  ): Promise<boolean> {
+  export function renderAllMarkdown(notebook: Notebook): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
     }
@@ -699,7 +725,7 @@ export namespace NotebookActions {
     if (notebook.activeCell.model.type !== 'markdown') {
       return Promise.resolve(true);
     }
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(notebook);
     notebook.activeCellIndex = previousIndex;
     Private.handleRunState(notebook, state, true);
     return promise;
@@ -709,8 +735,9 @@ export namespace NotebookActions {
    * Run all of the cells before the currently active cell (exclusive).
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * The existing selection will be cleared.
@@ -720,7 +747,9 @@ export namespace NotebookActions {
    */
   export function runAllAbove(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     const { activeCell, activeCellIndex, model } = notebook;
 
@@ -736,7 +765,12 @@ export namespace NotebookActions {
       notebook.select(notebook.widgets[i]);
     }
 
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
+    );
 
     notebook.activeCellIndex++;
     Private.handleRunState(notebook, state, true);
@@ -747,8 +781,9 @@ export namespace NotebookActions {
    * Run all of the cells after the currently active cell (inclusive).
    *
    * @param notebook - The target notebook widget.
-   *
-   * @param sessionContext - The optional client session object.
+   * @param sessionContext - The client session object.
+   * @param sessionDialogs - The session dialogs.
+   * @param translator - The application translator.
    *
    * #### Notes
    * The existing selection will be cleared.
@@ -758,7 +793,9 @@ export namespace NotebookActions {
    */
   export function runAllBelow(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     if (!notebook.model || !notebook.activeCell) {
       return Promise.resolve(false);
@@ -771,7 +808,12 @@ export namespace NotebookActions {
       notebook.select(notebook.widgets[i]);
     }
 
-    const promise = Private.runSelected(notebook, sessionContext);
+    const promise = Private.runSelected(
+      notebook,
+      sessionContext,
+      sessionDialogs,
+      translator
+    );
 
     Private.handleRunState(notebook, state, true);
     return promise;
@@ -784,7 +826,7 @@ export namespace NotebookActions {
    * @param text - The text to replace the selection.
    */
   export function replaceSelection(notebook: Notebook, text: string): void {
-    if (!notebook.model || !notebook.activeCell) {
+    if (!notebook.model || !notebook.activeCell?.editor) {
       return;
     }
     notebook.activeCell.editor.replaceSelection?.(text);
@@ -805,6 +847,13 @@ export namespace NotebookActions {
     if (!notebook.model || !notebook.activeCell) {
       return;
     }
+    const footer = (notebook.layout as NotebookWindowedLayout).footer;
+    if (footer && document.activeElement === footer.node) {
+      footer.node.blur();
+      notebook.mode = 'command';
+      return;
+    }
+
     if (notebook.activeCellIndex === 0) {
       return;
     }
@@ -843,6 +892,7 @@ export namespace NotebookActions {
       return;
     }
     let maxCellIndex = notebook.widgets.length - 1;
+
     // Find last non-hidden cell
     while (
       notebook.widgets[maxCellIndex].isHidden ||
@@ -851,6 +901,8 @@ export namespace NotebookActions {
       maxCellIndex -= 1;
     }
     if (notebook.activeCellIndex === maxCellIndex) {
+      const footer = (notebook.layout as NotebookWindowedLayout).footer;
+      footer?.node.focus();
       return;
     }
 
@@ -872,6 +924,130 @@ export namespace NotebookActions {
     Private.handleState(notebook, state, true);
   }
 
+  /** Insert new heading of same level above active cell.
+   *
+   * @param notebook - The target notebook widget
+   */
+  export async function insertSameLevelHeadingAbove(
+    notebook: Notebook
+  ): Promise<void> {
+    if (!notebook.model || !notebook.activeCell) {
+      return;
+    }
+    let headingLevel = Private.Headings.determineHeadingLevel(
+      notebook.activeCell,
+      notebook
+    );
+    if (headingLevel == -1) {
+      await Private.Headings.insertHeadingAboveCellIndex(0, 1, notebook);
+    } else {
+      await Private.Headings.insertHeadingAboveCellIndex(
+        notebook.activeCellIndex!,
+        headingLevel,
+        notebook
+      );
+    }
+  }
+
+  /** Insert new heading of same level at end of current section.
+   *
+   * @param notebook - The target notebook widget
+   */
+  export async function insertSameLevelHeadingBelow(
+    notebook: Notebook
+  ): Promise<void> {
+    if (!notebook.model || !notebook.activeCell) {
+      return;
+    }
+    let headingLevel = Private.Headings.determineHeadingLevel(
+      notebook.activeCell,
+      notebook
+    );
+    headingLevel = headingLevel > -1 ? headingLevel : 1;
+    let cellIdxOfHeadingBelow =
+      Private.Headings.findLowerEqualLevelHeadingBelow(
+        notebook.activeCell,
+        notebook,
+        true
+      ) as number;
+    await Private.Headings.insertHeadingAboveCellIndex(
+      cellIdxOfHeadingBelow == -1
+        ? notebook.model.cells.length
+        : cellIdxOfHeadingBelow,
+      headingLevel,
+      notebook
+    );
+  }
+
+  /**
+   * Select the heading above the active cell or, if already at heading, collapse it.
+   *
+   * @param notebook - The target notebook widget.
+   *
+   * #### Notes
+   * The widget mode will be preserved.
+   * This is a no-op if the active cell is the topmost heading in collapsed state
+   * The existing selection will be cleared.
+   */
+  export function selectHeadingAboveOrCollapseHeading(
+    notebook: Notebook
+  ): void {
+    if (!notebook.model || !notebook.activeCell) {
+      return;
+    }
+    const state = Private.getState(notebook);
+    let hInfoActiveCell = getHeadingInfo(notebook.activeCell);
+    // either collapse or find the right heading to jump to
+    if (hInfoActiveCell.isHeading && !hInfoActiveCell.collapsed) {
+      setHeadingCollapse(notebook.activeCell, true, notebook);
+    } else {
+      let targetHeadingCellIdx =
+        Private.Headings.findLowerEqualLevelParentHeadingAbove(
+          notebook.activeCell,
+          notebook,
+          true
+        ) as number;
+      if (targetHeadingCellIdx > -1) {
+        notebook.activeCellIndex = targetHeadingCellIdx;
+      }
+    }
+    // clear selection and handle state
+    notebook.deselectAll();
+    Private.handleState(notebook, state, true);
+  }
+
+  /**
+   * Select the heading below the active cell or, if already at heading, expand it.
+   *
+   * @param notebook - The target notebook widget.
+   *
+   * #### Notes
+   * The widget mode will be preserved.
+   * This is a no-op if the active cell is the last heading in expanded state
+   * The existing selection will be cleared.
+   */
+  export function selectHeadingBelowOrExpandHeading(notebook: Notebook): void {
+    if (!notebook.model || !notebook.activeCell) {
+      return;
+    }
+    const state = Private.getState(notebook);
+    let hInfo = getHeadingInfo(notebook.activeCell);
+    if (hInfo.isHeading && hInfo.collapsed) {
+      setHeadingCollapse(notebook.activeCell, false, notebook);
+    } else {
+      let targetHeadingCellIdx = Private.Headings.findHeadingBelow(
+        notebook.activeCell,
+        notebook,
+        true // return index of heading cell
+      ) as number;
+      if (targetHeadingCellIdx > -1) {
+        notebook.activeCellIndex = targetHeadingCellIdx;
+      }
+    }
+    notebook.deselectAll();
+    Private.handleState(notebook, state, true);
+  }
+
   /**
    * Extend the selection to the cell above.
    *
@@ -985,9 +1161,6 @@ export namespace NotebookActions {
    * A new code cell is added if all cells are cut.
    */
   export function cut(notebook: Notebook): void {
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     Private.copyOrCut(notebook, true);
   }
 
@@ -1011,10 +1184,6 @@ export namespace NotebookActions {
     notebook: Notebook,
     mode: 'below' | 'belowSelected' | 'above' | 'replace' = 'below'
   ): void {
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
-
     const clipboard = Clipboard.getInstance();
 
     if (!clipboard.hasData(JUPYTER_CELL_MIME)) {
@@ -1091,86 +1260,75 @@ export namespace NotebookActions {
 
     notebook.mode = 'command';
 
-    const newCells = values.map(cell => {
-      switch (cell.cell_type) {
-        case 'code':
-          if (
-            notebook.lastClipboardInteraction === 'cut' &&
-            typeof cell.id === 'string'
-          ) {
-            let cell_id = cell.id as string;
-            return model.contentFactory.createCodeCell({
-              id: cell_id,
-              cell: cell
-            });
-          } else {
-            return model.contentFactory.createCodeCell({ cell });
-          }
-        case 'markdown':
-          return model.contentFactory.createMarkdownCell({ cell });
-        default:
-          return model.contentFactory.createRawCell({ cell });
-      }
-    });
-
-    const cells = notebook.model.cells;
-    let index: number;
-
-    cells.beginCompoundOperation();
-
-    // Set the starting index of the paste operation depending upon the mode.
-    switch (mode) {
-      case 'below':
-        index = notebook.activeCellIndex;
-        break;
-      case 'belowSelected':
-        notebook.widgets.forEach((child, childIndex) => {
-          if (notebook.isSelectedOrActive(child)) {
-            index = childIndex;
-          }
-        });
-
-        break;
-      case 'above':
-        index = notebook.activeCellIndex - 1;
-        break;
-      case 'replace': {
-        // Find the cells to delete.
-        const toDelete: number[] = [];
+    let index = 0;
+    const prevActiveCellIndex = notebook.activeCellIndex;
+
+    model.sharedModel.transact(() => {
+      // Set the starting index of the paste operation depending upon the mode.
+      switch (mode) {
+        case 'below':
+          index = notebook.activeCellIndex + 1;
+          break;
+        case 'belowSelected':
+          notebook.widgets.forEach((child, childIndex) => {
+            if (notebook.isSelectedOrActive(child)) {
+              index = childIndex + 1;
+            }
+          });
 
-        notebook.widgets.forEach((child, index) => {
-          const deletable = child.model.metadata.get('deletable') !== false;
+          break;
+        case 'above':
+          index = notebook.activeCellIndex;
+          break;
+        case 'replace': {
+          // Find the cells to delete.
+          const toDelete: number[] = [];
+
+          notebook.widgets.forEach((child, index) => {
+            const deletable =
+              (child.model.sharedModel.getMetadata(
+                'deletable'
+              ) as unknown as boolean) !== false;
+
+            if (notebook.isSelectedOrActive(child) && deletable) {
+              toDelete.push(index);
+            }
+          });
 
-          if (notebook.isSelectedOrActive(child) && deletable) {
-            toDelete.push(index);
+          // If cells are not deletable, we may not have anything to delete.
+          if (toDelete.length > 0) {
+            // Delete the cells as one undo event.
+            toDelete.reverse().forEach(i => {
+              model.sharedModel.deleteCell(i);
+            });
           }
-        });
-
-        // If cells are not deletable, we may not have anything to delete.
-        if (toDelete.length > 0) {
-          // Delete the cells as one undo event.
-          toDelete.reverse().forEach(i => {
-            cells.remove(i);
-          });
+          index = toDelete[0];
+          break;
         }
-        index = toDelete[0];
-        break;
+        default:
+          break;
       }
-      default:
-        break;
-    }
 
-    newCells.forEach(cell => {
-      cells.insert(++index, cell);
+      model.sharedModel.insertCells(
+        index,
+        values.map(cell => {
+          cell.id =
+            cell.cell_type === 'code' &&
+            notebook.lastClipboardInteraction === 'cut' &&
+            typeof cell.id === 'string'
+              ? cell.id
+              : undefined;
+          return cell;
+        })
+      );
     });
-    cells.endCompoundOperation();
 
-    notebook.activeCellIndex += newCells.length;
+    notebook.activeCellIndex = prevActiveCellIndex + values.length;
     notebook.deselectAll();
     if (cellsFromClipboard) {
       notebook.lastClipboardInteraction = 'paste';
     }
-    Private.handleState(notebook, state);
+    Private.handleState(notebook, state, true);
   }
 
   /**
@@ -1182,13 +1340,10 @@ export namespace NotebookActions {
    * This is a no-op if there are no cell actions to undo.
    */
   export function undo(notebook: Notebook): void {
-    if (!notebook.model || !notebook.activeCell) {
+    if (!notebook.model) {
       return;
     }
 
-    if (!Private.isNotebookRendered(notebook)) {
-      return;
-    }
     const state = Private.getState(notebook);
 
     notebook.mode = 'command';
@@ -1263,15 +1418,17 @@ export namespace NotebookActions {
     }
 
     const state = Private.getState(notebook);
-
-    each(notebook.model.cells, (cell: ICodeCellModel, index) => {
-      const child = notebook.widgets[index];
+    let index = -1;
+    for (const cell of notebook.model.cells) {
+      const child = notebook.widgets[++index];
 
       if (notebook.isSelectedOrActive(child) && cell.type === 'code') {
-        cell.clearExecution();
-        (child as CodeCell).outputHidden = false;
+        cell.sharedModel.transact(() => {
+          (cell as ICodeCellModel).clearExecution();
+          (child as CodeCell).outputHidden = false;
+        }, false);
       }
-    });
+    }
     Private.handleState(notebook, state, true);
   }
 
@@ -1289,15 +1446,17 @@ export namespace NotebookActions {
     }
 
     const state = Private.getState(notebook);
-
-    each(notebook.model.cells, (cell: ICodeCellModel, index) => {
-      const child = notebook.widgets[index];
+    let index = -1;
+    for (const cell of notebook.model.cells) {
+      const child = notebook.widgets[++index];
 
       if (cell.type === 'code') {
-        cell.clearExecution();
-        (child as CodeCell).outputHidden = false;
+        cell.sharedModel.transact(() => {
+          (cell as ICodeCellModel).clearExecution();
+          (child as CodeCell).outputHidden = false;
+        }, false);
       }
-    });
+    }
     Private.handleState(notebook, state, true);
   }
 
@@ -1532,7 +1691,7 @@ export namespace NotebookActions {
     let latestCellIdx: number | null = null;
     notebook.widgets.forEach((cell, cellIndx) => {
       if (cell.model.type === 'code') {
-        const execution = (cell as CodeCell).model.metadata.get('execution');
+        const execution = cell.model.getMetadata('execution');
         if (
           execution &&
           JSONExt.isObject(execution) &&
@@ -1570,7 +1729,7 @@ export namespace NotebookActions {
    * There will always be one blank space after the header.
    * The cells will be unrendered.
    */
-  export function setMarkdownHeader(notebook: Notebook, level: number) {
+  export function setMarkdownHeader(notebook: Notebook, level: number): void {
     if (!notebook.model || !notebook.activeCell) {
       return;
     }
@@ -1593,7 +1752,7 @@ export namespace NotebookActions {
    *
    * @param notebook - The target notebook widget.
    */
-  export function collapseAll(notebook: Notebook): any {
+  export function collapseAllHeadings(notebook: Notebook): any {
     for (const cell of notebook.widgets) {
       if (NotebookActions.getHeadingInfo(cell).isHeading) {
         NotebookActions.setHeadingCollapse(cell, true, notebook);
@@ -1812,7 +1971,9 @@ export namespace NotebookActions {
         notebook
       );
     }
-    ElementExt.scrollIntoViewIfNeeded(notebook.node, notebook.activeCell.node);
+    notebook.scrollToItem(notebook.activeCellIndex).catch(reason => {
+      // no-op
+    });
   }
 
   /**
@@ -1836,9 +1997,7 @@ export namespace NotebookActions {
    *
    * @param cell - The target cell widget.
    */
-  export function getHeadingInfo(
-    cell: Cell
-  ): {
+  export function getHeadingInfo(cell: Cell): {
     isHeading: boolean;
     headingLevel: number;
     collapsed?: boolean;
@@ -1873,8 +2032,7 @@ export namespace NotebookActions {
     }
     // Do nothing if already trusted.
 
-    const cells = toArray(notebook.model.cells);
-    const trusted = cells.every(cell => cell.trusted);
+    const trusted = every(notebook.model.cells, cell => cell.trusted);
     // FIXME
     const trustMessage = (
       <p>
@@ -1883,7 +2041,7 @@ export namespace NotebookActions {
         )}
         <br />
         {trans.__(
-          'Selecting trust will re-render this notebook in a trusted state.'
+          'Selecting "Trust" will re-render this notebook in a trusted state.'
         )}
         <br />
         {trans.__('For more information, see')}{' '}
@@ -1894,13 +2052,14 @@ export namespace NotebookActions {
         >
           {trans.__('the Jupyter security documentation')}
         </a>
+        .
       </p>
     );
 
     if (trusted) {
       return showDialog({
         body: trans.__('Notebook is already trusted'),
-        buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+        buttons: [Dialog.okButton()]
       }).then(() => undefined);
     }
 
@@ -1908,14 +2067,19 @@ export namespace NotebookActions {
       body: trustMessage,
       title: trans.__('Trust this notebook?'),
       buttons: [
-        Dialog.cancelButton({ label: trans.__('Cancel') }),
-        Dialog.warnButton({ label: trans.__('Ok') })
+        Dialog.cancelButton(),
+        Dialog.warnButton({
+          label: trans.__('Trust'),
+          ariaLabel: trans.__('Confirm Trusting this notebook')
+        })
       ] // FIXME?
     }).then(result => {
       if (result.button.accept) {
-        cells.forEach(cell => {
-          cell.trusted = true;
-        });
+        if (notebook.model) {
+          for (const cell of notebook.model.cells) {
+            cell.trusted = true;
+          }
+        }
       }
     });
   }
@@ -1964,33 +2128,12 @@ namespace Private {
     wasFocused: boolean;
 
     /**
-     * The active cell before the action.
+     * The active cell id before the action.
+     *
+     * We cannot rely on the Cell widget or model as it may be
+     * discarded by action such as move.
      */
-    activeCell: Cell | null;
-  }
-
-  export function isNotebookRendered(notebook: Notebook): boolean {
-    const translator = notebook.translator;
-    const trans = translator.load('jupyterlab');
-
-    if (notebook.remainingCellToRenderCount !== 0) {
-      showDialog({
-        body: trans.__(
-          `Notebook is still rendering and has for now (%1) remaining cells to render.
-
-Please wait for the complete rendering before invoking that action.`,
-          notebook.remainingCellToRenderCount
-        ),
-        buttons: [Dialog.okButton({ label: trans.__('Ok') })]
-      }).catch(reason => {
-        console.error(
-          'An error occurred when displaying notebook rendering warning',
-          reason
-        );
-      });
-      return false;
-    }
-    return true;
+    activeCellId: string | null;
   }
 
   /**
@@ -1999,7 +2142,7 @@ Please wait for the complete rendering before invoking that action.`,
   export function getState(notebook: Notebook): IState {
     return {
       wasFocused: notebook.node.contains(document.activeElement),
-      activeCell: notebook.activeCell
+      activeCellId: notebook.activeCell?.model.id ?? null
     };
   }
 
@@ -2011,14 +2154,16 @@ Please wait for the complete rendering before invoking that action.`,
     state: IState,
     scrollIfNeeded = false
   ): void {
-    const { activeCell, node } = notebook;
+    const { activeCell, activeCellIndex } = notebook;
 
     if (state.wasFocused || notebook.mode === 'edit') {
       notebook.activate();
     }
 
     if (scrollIfNeeded && activeCell) {
-      ElementExt.scrollIntoViewIfNeeded(node, activeCell.node);
+      notebook.scrollToItem(activeCellIndex, 'smart', 0.05).catch(reason => {
+        // no-op
+      });
     }
   }
 
@@ -2033,40 +2178,31 @@ Please wait for the complete rendering before invoking that action.`,
     if (state.wasFocused || notebook.mode === 'edit') {
       notebook.activate();
     }
-    if (scroll && state.activeCell) {
-      // Scroll to the top of the previous active cell output.
-      const rect = state.activeCell.inputArea.node.getBoundingClientRect();
-
-      notebook.scrollToPosition(rect.bottom, 45);
-    }
-  }
-
-  /**
-   * Clone a cell model.
-   */
-  export function cloneCell(
-    model: INotebookModel,
-    cell: ICellModel
-  ): ICellModel {
-    switch (cell.type) {
-      case 'code':
-        // TODO why isn't modeldb or id passed here?
-        return model.contentFactory.createCodeCell({ cell: cell.toJSON() });
-      case 'markdown':
-        // TODO why isn't modeldb or id passed here?
-        return model.contentFactory.createMarkdownCell({ cell: cell.toJSON() });
-      default:
-        // TODO why isn't modeldb or id passed here?
-        return model.contentFactory.createRawCell({ cell: cell.toJSON() });
+    if (scroll && state.activeCellId) {
+      const index = notebook.widgets.findIndex(
+        w => w.model.id === state.activeCellId
+      );
+      if (notebook.widgets[index]?.inputArea) {
+        notebook.scrollToItem(index).catch(reason => {
+          // no-op
+        });
+      }
     }
   }
 
   /**
    * Run the selected cells.
+   *
+   * @param notebook Notebook
+   * @param sessionContext Notebook session context
+   * @param sessionDialogs Session dialogs
+   * @param translator Application translator
    */
   export function runSelected(
     notebook: Notebook,
-    sessionContext?: ISessionContext
+    sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
+    translator?: ITranslator
   ): Promise<boolean> {
     notebook.mode = 'command';
 
@@ -2085,7 +2221,9 @@ Please wait for the complete rendering before invoking that action.`,
     notebook.deselectAll();
 
     return Promise.all(
-      selected.map(child => runCell(notebook, child, sessionContext))
+      selected.map(child =>
+        runCell(notebook, child, sessionContext, sessionDialogs, translator)
+      )
     )
       .then(results => {
         if (notebook.isDisposed) {
@@ -2129,10 +2267,11 @@ Please wait for the complete rendering before invoking that action.`,
   /**
    * Run a cell.
    */
-  function runCell(
+  async function runCell(
     notebook: Notebook,
     cell: Cell,
     sessionContext?: ISessionContext,
+    sessionDialogs?: ISessionContextDialogs,
     translator?: ITranslator
   ): Promise<boolean> {
     translator = translator || nullTranslator;
@@ -2146,38 +2285,56 @@ Please wait for the complete rendering before invoking that action.`,
       case 'code':
         if (sessionContext) {
           if (sessionContext.isTerminating) {
-            void showDialog({
+            await showDialog({
               title: trans.__('Kernel Terminating'),
               body: trans.__(
                 'The kernel for %1 appears to be terminating. You can not run any cell for now.',
                 sessionContext.session?.path
               ),
-              buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+              buttons: [Dialog.okButton()]
             });
             break;
           }
           if (sessionContext.pendingInput) {
-            void showDialog({
+            await showDialog({
               title: trans.__('Cell not executed due to pending input'),
               body: trans.__(
                 'The cell has not been executed to avoid kernel deadlock as there is another pending input! Submit your pending input and try again.'
               ),
-              buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+              buttons: [Dialog.okButton()]
             });
-            return Promise.resolve(false);
+            return false;
+          }
+          if (sessionContext.hasNoKernel) {
+            const shouldSelect = await sessionContext.startKernel();
+            if (shouldSelect && sessionDialogs) {
+              await sessionDialogs.selectKernel(sessionContext);
+            }
           }
+
           if (sessionContext.hasNoKernel) {
-            void sessionContextDialogs.selectKernel(sessionContext);
-            return Promise.resolve(false);
+            cell.model.sharedModel.transact(() => {
+              (cell.model as ICodeCellModel).clearExecution();
+            });
+            return true;
           }
+
           const deletedCells = notebook.model?.deletedCells ?? [];
           executionScheduled.emit({ notebook, cell });
-          return CodeCell.execute(cell as CodeCell, sessionContext, {
-            deletedCells,
-            recordTiming: notebook.notebookConfig.recordTiming
-          })
-            .then(reply => {
-              deletedCells.splice(0, deletedCells.length);
+
+          let ran = false;
+          try {
+            const reply = await CodeCell.execute(
+              cell as CodeCell,
+              sessionContext,
+              {
+                deletedCells,
+                recordTiming: notebook.notebookConfig.recordTiming
+              }
+            );
+            deletedCells.splice(0, deletedCells.length);
+
+            ran = (() => {
               if (cell.isDisposed) {
                 return false;
               }
@@ -2196,23 +2353,30 @@ Please wait for the complete rendering before invoking that action.`,
               } else {
                 throw new KernelError(reply.content);
               }
-            })
-            .catch(reason => {
-              if (cell.isDisposed || reason.message.startsWith('Canceled')) {
-                return false;
-              }
-              executed.emit({ notebook, cell, success: false, error: reason });
+            })();
+          } catch (reason) {
+            if (cell.isDisposed || reason.message.startsWith('Canceled')) {
+              ran = false;
+            } else {
+              executed.emit({
+                notebook,
+                cell,
+                success: false,
+                error: reason
+              });
               throw reason;
-            })
-            .then(ran => {
-              if (ran) {
-                executed.emit({ notebook, cell, success: true });
-              }
+            }
+          }
 
-              return ran;
-            });
+          if (ran) {
+            executed.emit({ notebook, cell, success: true });
+          }
+
+          return ran;
         }
-        (cell.model as ICodeCellModel).clearExecution();
+        cell.model.sharedModel.transact(() => {
+          (cell.model as ICodeCellModel).clearExecution();
+        }, false);
         break;
       default:
         break;
@@ -2246,20 +2410,35 @@ Please wait for the complete rendering before invoking that action.`,
     const replace = setNextInput.replace;
 
     if (replace) {
-      cell.model.value.text = text;
+      cell.model.sharedModel.setSource(text);
       return;
     }
 
     // Create a new code cell and add as the next cell.
-    const newCell = notebook.model!.contentFactory.createCodeCell({});
+    const notebookModel = notebook.model!.sharedModel;
     const cells = notebook.model!.cells;
-    const index = ArrayExt.firstIndexOf(toArray(cells), cell.model);
+    const index = findIndex(cells, model => model === cell.model);
 
-    newCell.value.text = text;
+    // While this cell has no outputs and could be trusted following the letter
+    // of Jupyter trust model, its content comes from kernel and hence is not
+    // necessarily controlled by the user; if we set it as trusted, a user
+    // executing cells in succession could end up with unwanted trusted output.
     if (index === -1) {
-      cells.push(newCell);
+      notebookModel.insertCell(notebookModel.cells.length, {
+        cell_type: 'code',
+        source: text,
+        metadata: {
+          trusted: false
+        }
+      });
     } else {
-      cells.insert(index + 1, newCell);
+      notebookModel.insertCell(index + 1, {
+        cell_type: 'code',
+        source: text,
+        metadata: {
+          trusted: false
+        }
+      });
     }
   }
 
@@ -2333,35 +2512,33 @@ Please wait for the complete rendering before invoking that action.`,
     notebook: Notebook,
     value: nbformat.CellType
   ): void {
-    const model = notebook.model!;
-    const cells = model.cells;
-
-    cells.beginCompoundOperation();
+    const notebookSharedModel = notebook.model!.sharedModel;
     notebook.widgets.forEach((child, index) => {
       if (!notebook.isSelectedOrActive(child)) {
         return;
       }
       if (child.model.type !== value) {
-        const cell = child.model.toJSON();
-        let newCell: ICellModel;
-
-        switch (value) {
-          case 'code':
-            newCell = model.contentFactory.createCodeCell({ cell });
-            break;
-          case 'markdown':
-            newCell = model.contentFactory.createMarkdownCell({ cell });
-            if (child.model.type === 'code') {
-              newCell.trusted = false;
-            }
-            break;
-          default:
-            newCell = model.contentFactory.createRawCell({ cell });
-            if (child.model.type === 'code') {
-              newCell.trusted = false;
-            }
-        }
-        cells.set(index, newCell);
+        const raw = child.model.toJSON();
+        notebookSharedModel.transact(() => {
+          notebookSharedModel.deleteCell(index);
+          if (value === 'code') {
+            // After change of type outputs are deleted so cell can be trusted.
+            raw.metadata.trusted = true;
+          } else {
+            // Otherwise clear the metadata as trusted is only "valid" on code
+            // cells (since other cell types cannot have outputs).
+            raw.metadata.trusted = undefined;
+          }
+          const newCell = notebookSharedModel.insertCell(index, {
+            cell_type: value,
+            source: raw.source,
+            metadata: raw.metadata
+          });
+          if (raw.attachments && ['markdown', 'raw'].includes(value)) {
+            (newCell as ISharedAttachmentsCell).attachments =
+              raw.attachments as nbformat.IAttachments;
+          }
+        });
       }
       if (value === 'markdown') {
         // Fetch the new widget and unrender it.
@@ -2369,7 +2546,6 @@ Please wait for the complete rendering before invoking that action.`,
         (child as MarkdownCell).rendered = false;
       }
     });
-    cells.endCompoundOperation();
     notebook.deselectAll();
   }
 
@@ -2386,42 +2562,46 @@ Please wait for the complete rendering before invoking that action.`,
    */
   export function deleteCells(notebook: Notebook): void {
     const model = notebook.model!;
-    const cells = model.cells;
+    const sharedModel = model.sharedModel;
     const toDelete: number[] = [];
 
     notebook.mode = 'command';
 
     // Find the cells to delete.
     notebook.widgets.forEach((child, index) => {
-      const deletable = child.model.metadata.get('deletable') !== false;
+      const deletable = child.model.getMetadata('deletable') !== false;
 
       if (notebook.isSelectedOrActive(child) && deletable) {
         toDelete.push(index);
-        model.deletedCells.push(child.model.id);
+        notebook.model?.deletedCells.push(child.model.id);
       }
     });
 
     // If cells are not deletable, we may not have anything to delete.
     if (toDelete.length > 0) {
       // Delete the cells as one undo event.
-      cells.beginCompoundOperation();
-      // Delete cells in reverse order to maintain the correct indices.
-      toDelete.reverse().forEach(index => {
-        cells.remove(index);
-      });
-      // Add a new cell if the notebook is empty. This is done
-      // within the compound operation to make the deletion of
-      // a notebook's last cell undoable.
-      if (!cells.length) {
-        cells.push(
-          model.contentFactory.createCell(
-            notebook.notebookConfig.defaultCell,
-            {}
-          )
-        );
-      }
-      cells.endCompoundOperation();
+      sharedModel.transact(() => {
+        // Delete cells in reverse order to maintain the correct indices.
+        toDelete.reverse().forEach(index => {
+          sharedModel.deleteCell(index);
+        });
 
+        // Add a new cell if the notebook is empty. This is done
+        // within the compound operation to make the deletion of
+        // a notebook's last cell undoable.
+        if (sharedModel.cells.length == toDelete.length) {
+          sharedModel.insertCell(0, {
+            cell_type: notebook.notebookConfig.defaultCell,
+            metadata:
+              notebook.notebookConfig.defaultCell === 'code'
+                ? {
+                    // This is an empty cell created in empty notebook, thus is trusted
+                    trusted: true
+                  }
+                : {}
+          });
+        }
+      });
       // Select the *first* interior cell not deleted or the cell
       // *after* the last selected cell.
       // Note: The activeCellIndex is clamped to the available cells,
@@ -2439,9 +2619,9 @@ Please wait for the complete rendering before invoking that action.`,
   /**
    * Set the markdown header level of a cell.
    */
-  export function setMarkdownHeader(cell: ICellModel, level: number) {
+  export function setMarkdownHeader(cell: ICellModel, level: number): void {
     // Remove existing header or leading white space.
-    let source = cell.value.text;
+    let source = cell.sharedModel.getSource();
     const regex = /^(#+\s*)|^(\s*)/;
     const newHeader = Array(level + 1).join('#') + ' ';
     const matches = regex.exec(source);
@@ -2449,6 +2629,204 @@ Please wait for the complete rendering before invoking that action.`,
     if (matches) {
       source = source.slice(matches[0].length);
     }
-    cell.value.text = newHeader + source;
+    cell.sharedModel.setSource(newHeader + source);
+  }
+
+  /** Functionality related to collapsible headings */
+  export namespace Headings {
+    /** Find the heading that is parent to cell.
+     *
+     * @param childCell - The cell that is child to the sought heading
+     * @param notebook - The target notebook widget
+     * @param includeChildCell [default=false] - if set to true and childCell is a heading itself, the childCell will be returned
+     * @param returnIndex [default=false] - if set to true, the cell index is returned rather than the cell object.
+     *
+     * @returns the (index | Cell object) of the parent heading or (-1 | null) if there is no parent heading.
+     */
+    export function findParentHeading(
+      childCell: Cell,
+      notebook: Notebook,
+      includeChildCell = false,
+      returnIndex = false
+    ): number | Cell | null {
+      let cellIdx =
+        notebook.widgets.indexOf(childCell) - (includeChildCell ? 1 : 0);
+      while (cellIdx >= 0) {
+        let headingInfo = NotebookActions.getHeadingInfo(
+          notebook.widgets[cellIdx]
+        );
+        if (headingInfo.isHeading) {
+          return returnIndex ? cellIdx : notebook.widgets[cellIdx];
+        }
+        cellIdx--;
+      }
+      return returnIndex ? -1 : null;
+    }
+
+    /** Find heading above with leq level than baseCell heading level.
+     *
+     * @param baseCell - cell relative to which so search
+     * @param notebook - target notebook widget
+     * @param returnIndex [default=false] - if set to true, the cell index is returned rather than the cell object.
+     *
+     * @returns the (index | Cell object) of the found heading or (-1 | null) if no heading found.
+     */
+    export function findLowerEqualLevelParentHeadingAbove(
+      baseCell: Cell,
+      notebook: Notebook,
+      returnIndex = false
+    ): number | Cell | null {
+      let baseHeadingLevel = Private.Headings.determineHeadingLevel(
+        baseCell,
+        notebook
+      );
+      if (baseHeadingLevel == -1) {
+        baseHeadingLevel = 1; // if no heading level can be determined, assume we're on level 1
+      }
+
+      // find the heading above with heading level <= baseHeadingLevel and return its index
+      let cellIdx = notebook.widgets.indexOf(baseCell) - 1;
+      while (cellIdx >= 0) {
+        let cell = notebook.widgets[cellIdx];
+        let headingInfo = NotebookActions.getHeadingInfo(cell);
+        if (
+          headingInfo.isHeading &&
+          headingInfo.headingLevel <= baseHeadingLevel
+        ) {
+          return returnIndex ? cellIdx : cell;
+        }
+        cellIdx--;
+      }
+      return returnIndex ? -1 : null; // no heading found
+    }
+
+    /** Find next heading with equal or lower level.
+     *
+     * @param baseCell - cell relative to which so search
+     * @param notebook - target notebook widget
+     * @param returnIndex [default=false] - if set to true, the cell index is returned rather than the cell object.
+     *
+     * @returns the (index | Cell object) of the found heading or (-1 | null) if no heading found.
+     */
+    export function findLowerEqualLevelHeadingBelow(
+      baseCell: Cell,
+      notebook: Notebook,
+      returnIndex = false
+    ): number | Cell | null {
+      let baseHeadingLevel = Private.Headings.determineHeadingLevel(
+        baseCell,
+        notebook
+      );
+      if (baseHeadingLevel == -1) {
+        baseHeadingLevel = 1; // if no heading level can be determined, assume we're on level 1
+      }
+      let cellIdx = notebook.widgets.indexOf(baseCell) + 1;
+      while (cellIdx < notebook.widgets.length) {
+        let cell = notebook.widgets[cellIdx];
+        let headingInfo = NotebookActions.getHeadingInfo(cell);
+        if (
+          headingInfo.isHeading &&
+          headingInfo.headingLevel <= baseHeadingLevel
+        ) {
+          return returnIndex ? cellIdx : cell;
+        }
+        cellIdx++;
+      }
+      return returnIndex ? -1 : null;
+    }
+
+    /** Find next heading.
+     *
+     * @param baseCell - cell relative to which so search
+     * @param notebook - target notebook widget
+     * @param returnIndex [default=false] - if set to true, the cell index is returned rather than the cell object.
+     *
+     * @returns the (index | Cell object) of the found heading or (-1 | null) if no heading found.
+     */
+    export function findHeadingBelow(
+      baseCell: Cell,
+      notebook: Notebook,
+      returnIndex = false
+    ): number | Cell | null {
+      let cellIdx = notebook.widgets.indexOf(baseCell) + 1;
+      while (cellIdx < notebook.widgets.length) {
+        let cell = notebook.widgets[cellIdx];
+        let headingInfo = NotebookActions.getHeadingInfo(cell);
+        if (headingInfo.isHeading) {
+          return returnIndex ? cellIdx : cell;
+        }
+        cellIdx++;
+      }
+      return returnIndex ? -1 : null;
+    }
+
+    /** Determine the heading level of a cell.
+     *
+     * @param baseCell - The cell of which the heading level shall be determined
+     * @param notebook - The target notebook widget
+     *
+     * @returns the heading level or -1 if there is no parent heading
+     *
+     * #### Notes
+     * If the baseCell is a heading itself, the heading level of baseCell is returned.
+     * If the baseCell is not a heading itself, the level of the parent heading is returned.
+     * If there is no parent heading, -1 is returned.
+     */
+    export function determineHeadingLevel(
+      baseCell: Cell,
+      notebook: Notebook
+    ): number {
+      let headingInfoBaseCell = NotebookActions.getHeadingInfo(baseCell);
+      // fill baseHeadingLevel or return null if there is no heading at or above baseCell
+      if (headingInfoBaseCell.isHeading) {
+        return headingInfoBaseCell.headingLevel;
+      } else {
+        let parentHeading = findParentHeading(
+          baseCell,
+          notebook,
+          true
+        ) as Cell | null;
+        if (parentHeading == null) {
+          return -1;
+        }
+        return NotebookActions.getHeadingInfo(parentHeading).headingLevel;
+      }
+    }
+
+    /** Insert a new heading cell at given position.
+     *
+     * @param cellIndex - where to insert
+     * @param headingLevel - level of the new heading
+     * @param notebook - target notebook
+     *
+     * #### Notes
+     * Enters edit mode after insert.
+     */
+    export async function insertHeadingAboveCellIndex(
+      cellIndex: number,
+      headingLevel: number,
+      notebook: Notebook
+    ): Promise<void> {
+      headingLevel = Math.min(Math.max(headingLevel, 1), 6);
+      const state = Private.getState(notebook);
+      const model = notebook.model!;
+      const sharedModel = model!.sharedModel;
+      sharedModel.insertCell(cellIndex, {
+        cell_type: 'markdown',
+        source: '#'.repeat(headingLevel) + ' '
+      });
+      notebook.activeCellIndex = cellIndex;
+      if (notebook.activeCell?.inViewport === false) {
+        await signalToPromise(notebook.activeCell.inViewportChanged, 200).catch(
+          () => {
+            // no-op
+          }
+        );
+      }
+      notebook.deselectAll();
+      Private.handleState(notebook, state, true);
+      notebook.mode = 'edit';
+      notebook.widgets[cellIndex].setHidden(false);
+    }
   }
 }
diff --git a/packages/notebook/src/celllist.ts b/packages/notebook/src/celllist.ts
index 0a0c87f262f6..79af34aa3970 100644
--- a/packages/notebook/src/celllist.ts
+++ b/packages/notebook/src/celllist.ts
@@ -1,124 +1,35 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { ICellModel } from '@jupyterlab/cells';
 import {
-  IModelDB,
-  IObservableList,
-  IObservableMap,
-  IObservableUndoableList,
-  ObservableMap
-} from '@jupyterlab/observables';
-import * as models from '@jupyterlab/shared-models';
+  CellModel,
+  CodeCellModel,
+  ICellModel,
+  MarkdownCellModel,
+  RawCellModel
+} from '@jupyterlab/cells';
+import { IObservableList } from '@jupyterlab/observables';
 import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  IIterator,
-  IterableOrArrayLike,
-  toArray
-} from '@lumino/algorithm';
+  ISharedCell,
+  ISharedCodeCell,
+  ISharedMarkdownCell,
+  ISharedNotebook,
+  ISharedRawCell,
+  NotebookChange
+} from '@jupyter/ydoc';
 import { ISignal, Signal } from '@lumino/signaling';
-import { NotebookModel } from './model';
 
 /**
  * A cell list object that supports undo/redo.
  */
-export class CellList implements IObservableUndoableList<ICellModel> {
+export class CellList {
   /**
    * Construct the cell list.
    */
-  constructor(
-    modelDB: IModelDB,
-    factory: NotebookModel.IContentFactory,
-    model: models.ISharedNotebook
-  ) {
-    this._factory = factory;
-    this._cellOrder = modelDB.createList<string>('cellOrder');
-    this._cellMap = new ObservableMap<ICellModel>();
+  constructor(protected model: ISharedNotebook) {
+    this._insertCells(0, this.model.cells);
 
-    this._cellOrder.changed.connect(this._onOrderChanged, this);
-    this.nbmodel = model;
-    this.nbmodel.changed.connect(this.onSharedModelChanged, this);
-    this.changed.connect(this.onModelDBChanged, this);
-  }
-
-  type: 'List';
-  nbmodel: models.ISharedNotebook;
-
-  /**
-   * Prevents that the modeldb event handler is executed when the shared-model event handler is executed and vice-versa.
-   */
-  private readonly _mutex = models.createMutex();
-
-  private onModelDBChanged(
-    self: CellList,
-    change: IObservableList.IChangedArgs<ICellModel>
-  ) {
-    this._mutex(() => {
-      const nbmodel = this.nbmodel;
-      nbmodel.transact(() => {
-        if (change.type === 'set' || change.type === 'remove') {
-          nbmodel.deleteCellRange(
-            change.oldIndex,
-            change.oldIndex + change.oldValues.length
-          );
-        }
-        if (
-          change.type === 'set' ||
-          change.type === 'add' ||
-          change.type === 'move'
-        ) {
-          let insertLocation = change.newIndex;
-          if (change.type === 'move' && insertLocation > change.oldIndex) {
-            insertLocation += change.oldValues.length;
-          }
-          const cells = nbmodel.insertCells(
-            insertLocation,
-            change.newValues.map(cell => {
-              return cell.sharedModel.toJSON();
-            })
-          );
-          change.newValues.forEach((cell, index) => {
-            cell.switchSharedModel(cells[index], false);
-          });
-        }
-        if (change.type === 'move') {
-          let from = change.oldIndex;
-          if (from >= change.newIndex) {
-            from += change.oldValues.length;
-          }
-          nbmodel.deleteCellRange(from, from + change.oldValues.length);
-        }
-      });
-    });
-  }
-
-  private onSharedModelChanged(
-    self: models.ISharedNotebook,
-    change: models.NotebookChange
-  ) {
-    this._mutex(() => {
-      let currpos = 0;
-      change.cellsChange?.forEach(delta => {
-        if (delta.insert != null) {
-          const cells = delta.insert.map(nbcell => {
-            const cell = this._factory.createCell(
-              nbcell.cell_type as 'markdown' | 'raw' | 'code',
-              { id: nbcell.id }
-            );
-            cell.switchSharedModel(nbcell as any, true);
-            return cell;
-          });
-          this.insertAll(currpos, cells);
-          currpos += delta.insert.length;
-        } else if (delta.delete != null) {
-          this.removeRange(currpos, currpos + delta.delete);
-        } else if (delta.retain != null) {
-          currpos += delta.retain;
-        }
-      });
-    });
+    this.model.changed.connect(this._onSharedModelChanged, this);
   }
 
   /**
@@ -135,59 +46,24 @@ export class CellList implements IObservableUndoableList<ICellModel> {
     return this._isDisposed;
   }
 
-  /**
-   * Test whether the list is empty.
-   *
-   * @returns `true` if the cell list is empty, `false` otherwise.
-   *
-   * #### Notes
-   * This is a read-only property.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
-   */
-  get isEmpty(): boolean {
-    return this._cellOrder.length === 0;
-  }
-
   /**
    * Get the length of the cell list.
    *
-   * @return The number of cells in the cell list.
-   *
-   * #### Notes
-   * This is a read-only property.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
+   * @returns The number of cells in the cell list.
    */
   get length(): number {
-    return this._cellOrder.length;
+    return this.model.cells.length;
   }
 
   /**
    * Create an iterator over the cells in the cell list.
    *
    * @returns A new iterator starting at the front of the cell list.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
    */
-  iter(): IIterator<ICellModel> {
-    const arr: ICellModel[] = [];
-    for (const id of toArray(this._cellOrder)) {
-      arr.push(this._cellMap.get(id)!);
+  *[Symbol.iterator](): IterableIterator<ICellModel> {
+    for (const cell of this.model.cells) {
+      yield this._cellMap.get(cell)!;
     }
-    return new ArrayIterator<ICellModel>(arr);
   }
 
   /**
@@ -198,13 +74,12 @@ export class CellList implements IObservableUndoableList<ICellModel> {
       return;
     }
     this._isDisposed = true;
-    Signal.clearData(this);
+
     // Clean up the cell map and cell order objects.
-    for (const cell of this._cellMap.values()) {
-      cell.dispose();
+    for (const cell of this.model.cells) {
+      this._cellMap.get(cell)?.dispose();
     }
-    this._cellMap.dispose();
-    this._cellOrder.dispose();
+    Signal.clearData(this);
   }
 
   /**
@@ -213,402 +88,80 @@ export class CellList implements IObservableUndoableList<ICellModel> {
    * @param index - The positive integer index of interest.
    *
    * @returns The cell at the specified index.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Undefined Behavior
-   * An `index` which is non-integral or out of range.
    */
   get(index: number): ICellModel {
-    return this._cellMap.get(this._cellOrder.get(index))!;
-  }
-
-  /**
-   * Set the cell at the specified index.
-   *
-   * @param index - The positive integer index of interest.
-   *
-   * @param cell - The cell to set at the specified index.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Undefined Behavior
-   * An `index` which is non-integral or out of range.
-   *
-   * #### Notes
-   * This should be considered to transfer ownership of the
-   * cell to the `CellList`. As such, `cell.dispose()` should
-   * not be called by other actors.
-   */
-  set(index: number, cell: ICellModel): void {
-    // Set the internal data structures.
-    this._cellMap.set(cell.id, cell);
-    this._cellOrder.set(index, cell.id);
-  }
-
-  /**
-   * Add a cell to the back of the cell list.
-   *
-   * @param cell - The cell to add to the back of the cell list.
-   *
-   * @returns The new length of the cell list.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Notes
-   * This should be considered to transfer ownership of the
-   * cell to the `CellList`. As such, `cell.dispose()` should
-   * not be called by other actors.
-   */
-  push(cell: ICellModel): number {
-    // Set the internal data structures.
-    this._cellMap.set(cell.id, cell);
-    const num = this._cellOrder.push(cell.id);
-    return num;
-  }
-
-  /**
-   * Insert a cell into the cell list at a specific index.
-   *
-   * @param index - The index at which to insert the cell.
-   *
-   * @param cell - The cell to set at the specified index.
-   *
-   * @returns The new length of the cell list.
-   *
-   * #### Complexity
-   * Linear.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Notes
-   * The `index` will be clamped to the bounds of the cell list.
-   *
-   * #### Undefined Behavior
-   * An `index` which is non-integral.
-   *
-   * #### Notes
-   * This should be considered to transfer ownership of the
-   * cell to the `CellList`. As such, `cell.dispose()` should
-   * not be called by other actors.
-   */
-  insert(index: number, cell: ICellModel): void {
-    // Set the internal data structures.
-    this._cellMap.set(cell.id, cell);
-    this._cellOrder.insert(index, cell.id);
-  }
-
-  /**
-   * Remove the first occurrence of a cell from the cell list.
-   *
-   * @param cell - The cell of interest.
-   *
-   * @returns The index of the removed cell, or `-1` if the cell
-   *   is not contained in the cell list.
-   *
-   * #### Complexity
-   * Linear.
-   *
-   * #### Iterator Validity
-   * Iterators pointing at the removed cell and beyond are invalidated.
-   */
-  removeValue(cell: ICellModel): number {
-    const index = ArrayExt.findFirstIndex(
-      toArray(this._cellOrder),
-      id => this._cellMap.get(id) === cell
-    );
-    this.remove(index);
-    return index;
-  }
-
-  /**
-   * Remove and return the cell at a specific index.
-   *
-   * @param index - The index of the cell of interest.
-   *
-   * @returns The cell at the specified index, or `undefined` if the
-   *   index is out of range.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * Iterators pointing at the removed cell and beyond are invalidated.
-   *
-   * #### Undefined Behavior
-   * An `index` which is non-integral.
-   */
-  remove(index: number): ICellModel {
-    const id = this._cellOrder.get(index);
-    this._cellOrder.remove(index);
-    const cell = this._cellMap.get(id)!;
-    return cell;
-  }
-
-  /**
-   * Remove all cells from the cell list.
-   *
-   * #### Complexity
-   * Linear.
-   *
-   * #### Iterator Validity
-   * All current iterators are invalidated.
-   */
-  clear(): void {
-    this._cellOrder.clear();
+    return this._cellMap.get(this.model.cells[index])!;
   }
 
-  /**
-   * Move a cell from one index to another.
-   *
-   * @parm fromIndex - The index of the element to move.
-   *
-   * @param toIndex - The index to move the element to.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * Iterators pointing at the lesser of the `fromIndex` and the `toIndex`
-   * and beyond are invalidated.
-   *
-   * #### Undefined Behavior
-   * A `fromIndex` or a `toIndex` which is non-integral.
-   */
-  move(fromIndex: number, toIndex: number): void {
-    this._cellOrder.move(fromIndex, toIndex);
-  }
+  private _insertCells(index: number, cells: Array<ISharedCell>) {
+    cells.forEach(sharedModel => {
+      let cellModel: CellModel;
+      switch (sharedModel.cell_type) {
+        case 'code': {
+          cellModel = new CodeCellModel({
+            sharedModel: sharedModel as ISharedCodeCell
+          });
+          break;
+        }
+        case 'markdown': {
+          cellModel = new MarkdownCellModel({
+            sharedModel: sharedModel as ISharedMarkdownCell
+          });
+          break;
+        }
+        default: {
+          cellModel = new RawCellModel({
+            sharedModel: sharedModel as ISharedRawCell
+          });
+        }
+      }
 
-  /**
-   * Push a set of cells to the back of the cell list.
-   *
-   * @param cells - An iterable or array-like set of cells to add.
-   *
-   * @returns The new length of the cell list.
-   *
-   * #### Complexity
-   * Linear.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Notes
-   * This should be considered to transfer ownership of the
-   * cells to the `CellList`. As such, `cell.dispose()` should
-   * not be called by other actors.
-   */
-  pushAll(cells: IterableOrArrayLike<ICellModel>): number {
-    const newValues = toArray(cells);
-    each(newValues, cell => {
-      // Set the internal data structures.
-      this._cellMap.set(cell.id, cell);
-      this._cellOrder.push(cell.id);
+      this._cellMap.set(sharedModel, cellModel);
+      sharedModel.disposed.connect(() => {
+        cellModel.dispose();
+        this._cellMap.delete(sharedModel);
+      });
     });
-    return this.length;
-  }
 
-  /**
-   * Insert a set of items into the cell list at the specified index.
-   *
-   * @param index - The index at which to insert the cells.
-   *
-   * @param cells - The cells to insert at the specified index.
-   *
-   * @returns The new length of the cell list.
-   *
-   * #### Complexity.
-   * Linear.
-   *
-   * #### Iterator Validity
-   * No changes.
-   *
-   * #### Notes
-   * The `index` will be clamped to the bounds of the cell list.
-   *
-   * #### Undefined Behavior.
-   * An `index` which is non-integral.
-   *
-   * #### Notes
-   * This should be considered to transfer ownership of the
-   * cells to the `CellList`. As such, `cell.dispose()` should
-   * not be called by other actors.
-   */
-  insertAll(index: number, cells: IterableOrArrayLike<ICellModel>): number {
-    const newValues = toArray(cells);
-    each(newValues, cell => {
-      this._cellMap.set(cell.id, cell);
-      // @todo it looks like this compound operation should start before the `each` loop.
-      this._cellOrder.beginCompoundOperation();
-      this._cellOrder.insert(index++, cell.id);
-      this._cellOrder.endCompoundOperation();
-    });
     return this.length;
   }
 
-  /**
-   * Remove a range of items from the cell list.
-   *
-   * @param startIndex - The start index of the range to remove (inclusive).
-   *
-   * @param endIndex - The end index of the range to remove (exclusive).
-   *
-   * @returns The new length of the cell list.
-   *
-   * #### Complexity
-   * Linear.
-   *
-   * #### Iterator Validity
-   * Iterators pointing to the first removed cell and beyond are invalid.
-   *
-   * #### Undefined Behavior
-   * A `startIndex` or `endIndex` which is non-integral.
-   */
-  removeRange(startIndex: number, endIndex: number): number {
-    this._cellOrder.removeRange(startIndex, endIndex);
-    return this.length;
-  }
-
-  /**
-   * Whether the object can redo changes.
-   */
-  get canRedo(): boolean {
-    return this.nbmodel.canRedo();
-  }
-
-  /**
-   * Whether the object can undo changes.
-   */
-  get canUndo(): boolean {
-    return this.nbmodel.canUndo();
-  }
-
-  /**
-   * Begin a compound operation.
-   *
-   * @param isUndoAble - Whether the operation is undoable.
-   *   The default is `true`.
-   */
-  beginCompoundOperation(isUndoAble?: boolean): void {
-    this._cellOrder.beginCompoundOperation(isUndoAble);
-  }
-
-  /**
-   * End a compound operation.
-   */
-  endCompoundOperation(): void {
-    this._cellOrder.endCompoundOperation();
-  }
-
-  /**
-   * Undo an operation.
-   */
-  undo(): void {
-    this.nbmodel.undo();
-  }
-
-  /**
-   * Redo an operation.
-   */
-  redo(): void {
-    this.nbmodel.redo();
-  }
-
-  /**
-   * Clear the change stack.
-   */
-  clearUndo(): void {
-    this.nbmodel.clearUndoHistory();
-  }
-
-  private _onOrderChanged(
-    order: IObservableUndoableList<string>,
-    change: IObservableList.IChangedArgs<string>
-  ): void {
-    if (change.type === 'add' || change.type === 'set') {
-      each(change.newValues, id => {
-        const existingCell = this._cellMap.get(id);
-        if (existingCell == null) {
-          const cellDB = this._factory.modelDB!;
-          const cellType = cellDB.createValue(id + '.type');
-          let cell: ICellModel;
-          switch (cellType.get()) {
-            case 'code':
-              cell = this._factory.createCodeCell({ id: id });
-              break;
-            case 'markdown':
-              cell = this._factory.createMarkdownCell({ id: id });
-              break;
-            default:
-              cell = this._factory.createRawCell({ id: id });
-              break;
-          }
-          this._cellMap.set(id, cell);
-        } else if (!existingCell.sharedModel.isStandalone) {
-          this._mutex(() => {
-            // it does already exist, probably because it was deleted previously and we introduced it
-            // copy it to a fresh codecell instance
-            const cell = existingCell.toJSON();
-            let freshCell = null;
-            switch (cell.cell_type) {
-              case 'code':
-                freshCell = this._factory.createCodeCell({
-                  cell,
-                  id: cell.id as string
-                });
-                break;
-              case 'markdown':
-                freshCell = this._factory.createMarkdownCell({
-                  cell,
-                  id: cell.id as string
-                });
-                break;
-              default:
-                freshCell = this._factory.createRawCell({
-                  cell,
-                  id: cell.id as string
-                });
-                break;
-            }
-            this._cellMap.set(id, freshCell);
-          });
-        }
-      });
-    }
-    const newValues: ICellModel[] = [];
-    const oldValues: ICellModel[] = [];
-    each(change.newValues, id => {
-      newValues.push(this._cellMap.get(id)!);
-    });
-    each(change.oldValues, id => {
-      oldValues.push(this._cellMap.get(id)!);
-    });
-    this._changed.emit({
-      type: change.type,
-      oldIndex: change.oldIndex,
-      newIndex: change.newIndex,
-      oldValues,
-      newValues
+  private _onSharedModelChanged(self: ISharedNotebook, change: NotebookChange) {
+    let currpos = 0;
+    // We differ emitting the list changes to ensure cell model for all current shared cell have been created.
+    const events = new Array<IObservableList.IChangedArgs<ICellModel>>();
+    change.cellsChange?.forEach(delta => {
+      if (delta.insert != null) {
+        this._insertCells(currpos, delta.insert);
+        events.push({
+          type: 'add',
+          newIndex: currpos,
+          newValues: delta.insert.map(c => this._cellMap.get(c)!),
+          oldIndex: -2,
+          oldValues: []
+        });
+
+        currpos += delta.insert.length;
+      } else if (delta.delete != null) {
+        events.push({
+          type: 'remove',
+          newIndex: -1,
+          newValues: [],
+          oldIndex: currpos,
+          // Cells have been disposed, so we don't know which one are gone.
+          oldValues: new Array(delta.delete).fill(undefined)
+        });
+      } else if (delta.retain != null) {
+        currpos += delta.retain;
+      }
     });
+
+    events.forEach(msg => this._changed.emit(msg));
   }
 
-  private _isDisposed: boolean = false;
-  private _cellOrder: IObservableUndoableList<string>;
-  private _cellMap: IObservableMap<ICellModel>;
+  private _cellMap = new WeakMap<ISharedCell, ICellModel>();
   private _changed = new Signal<this, IObservableList.IChangedArgs<ICellModel>>(
     this
   );
-  private _factory: NotebookModel.IContentFactory;
+  private _isDisposed = false;
 }
diff --git a/packages/notebook/src/constants.ts b/packages/notebook/src/constants.ts
new file mode 100644
index 000000000000..0ffb7d7860d3
--- /dev/null
+++ b/packages/notebook/src/constants.ts
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/**
+ * The class name added to a drop target.
+ */
+export const DROP_TARGET_CLASS = 'jp-mod-dropTarget';
+
+/**
+ * The class name added to a drop source.
+ */
+export const DROP_SOURCE_CLASS = 'jp-mod-dropSource';
diff --git a/packages/notebook/src/default-toolbar.tsx b/packages/notebook/src/default-toolbar.tsx
index bf94760cc69c..6214edb5ca83 100644
--- a/packages/notebook/src/default-toolbar.tsx
+++ b/packages/notebook/src/default-toolbar.tsx
@@ -2,17 +2,12 @@
 // Distributed under the terms of the Modified BSD License.
 
 import {
-  addToolbarButtonClass,
+  Toolbar as AppToolbar,
   Dialog,
   ISessionContext,
   ISessionContextDialogs,
-  ReactWidget,
-  sessionContextDialogs,
-  showDialog,
-  Toolbar,
-  ToolbarButton,
-  ToolbarButtonComponent,
-  UseSignal
+  SessionContextDialogs,
+  showDialog
 } from '@jupyterlab/apputils';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import * as nbformat from '@jupyterlab/nbformat';
@@ -23,15 +18,20 @@ import {
 } from '@jupyterlab/translation';
 import {
   addIcon,
+  addToolbarButtonClass,
   copyIcon,
   cutIcon,
   fastForwardIcon,
   HTMLSelect,
   pasteIcon,
+  ReactWidget,
   runIcon,
-  saveIcon
+  saveIcon,
+  Toolbar,
+  ToolbarButton,
+  ToolbarButtonComponent,
+  UseSignal
 } from '@jupyterlab/ui-components';
-import { Widget } from '@lumino/widgets';
 import * as React from 'react';
 import { NotebookActions } from './actions';
 import { NotebookPanel } from './panel';
@@ -60,14 +60,14 @@ export namespace ToolbarItems {
   export function createSaveButton(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     const trans = (translator || nullTranslator).load('jupyterlab');
     function onClick() {
       if (panel.context.model.readOnly) {
         return showDialog({
           title: trans.__('Cannot Save'),
           body: trans.__('Document is read-only'),
-          buttons: [Dialog.okButton({ label: trans.__('Ok') })]
+          buttons: [Dialog.okButton()]
         });
       }
       void panel.context.save().then(() => {
@@ -76,7 +76,8 @@ export namespace ToolbarItems {
         }
       });
     }
-    return addToolbarButtonClass(
+
+    return addToolbarButtonClass<ReactWidget>(
       ReactWidget.create(
         <UseSignal signal={panel.context.fileChanged}>
           {() => (
@@ -110,7 +111,7 @@ export namespace ToolbarItems {
   export function createInsertButton(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     const trans = (translator || nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: addIcon,
@@ -130,7 +131,7 @@ export namespace ToolbarItems {
   export function createCutButton(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     const trans = (translator || nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: cutIcon,
@@ -150,7 +151,7 @@ export namespace ToolbarItems {
   export function createCopyButton(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     const trans = (translator || nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: copyIcon,
@@ -170,7 +171,7 @@ export namespace ToolbarItems {
   export function createPasteButton(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     const trans = (translator || nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: pasteIcon,
@@ -189,13 +190,19 @@ export namespace ToolbarItems {
    */
   export function createRunButton(
     panel: NotebookPanel,
+    sessionDialogs?: ISessionContextDialogs,
     translator?: ITranslator
-  ): Widget {
-    const trans = (translator || nullTranslator).load('jupyterlab');
+  ): ReactWidget {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: runIcon,
       onClick: () => {
-        void NotebookActions.runAndAdvance(panel.content, panel.sessionContext);
+        void NotebookActions.runAndAdvance(
+          panel.content,
+          panel.sessionContext,
+          sessionDialogs,
+          translator
+        );
       },
       tooltip: trans.__('Run the selected cells and advance')
     });
@@ -210,19 +217,23 @@ export namespace ToolbarItems {
     panel: NotebookPanel,
     dialogs?: ISessionContext.IDialogs,
     translator?: ITranslator
-  ): Widget {
-    const trans = (translator || nullTranslator).load('jupyterlab');
+  ): ReactWidget {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     return new ToolbarButton({
       icon: fastForwardIcon,
       onClick: () => {
-        void (dialogs ?? sessionContextDialogs)
-          .restart(panel.sessionContext, translator)
-          .then(restarted => {
-            if (restarted) {
-              void NotebookActions.runAll(panel.content, panel.sessionContext);
-            }
-            return restarted;
-          });
+        const dialogs_ = dialogs ?? new SessionContextDialogs({ translator });
+        void dialogs_.restart(panel.sessionContext).then(restarted => {
+          if (restarted) {
+            void NotebookActions.runAll(
+              panel.content,
+              panel.sessionContext,
+              dialogs_,
+              translator
+            );
+          }
+          return restarted;
+        });
       },
       tooltip: trans.__('Restart the kernel, then re-run the whole notebook')
     });
@@ -242,12 +253,14 @@ export namespace ToolbarItems {
   export function createCellTypeItem(
     panel: NotebookPanel,
     translator?: ITranslator
-  ): Widget {
+  ): ReactWidget {
     return new CellTypeSwitcher(panel.content, translator);
   }
 
   /**
    * Get the default toolbar items for panel
+   *
+   * @deprecated since v4
    */
   export function getDefaultItems(
     panel: NotebookPanel,
@@ -260,14 +273,20 @@ export namespace ToolbarItems {
       { name: 'cut', widget: createCutButton(panel, translator) },
       { name: 'copy', widget: createCopyButton(panel, translator) },
       { name: 'paste', widget: createPasteButton(panel, translator) },
-      { name: 'run', widget: createRunButton(panel, translator) },
+      {
+        name: 'run',
+        widget: createRunButton(panel, sessionDialogs, translator)
+      },
       {
         name: 'interrupt',
-        widget: Toolbar.createInterruptButton(panel.sessionContext, translator)
+        widget: AppToolbar.createInterruptButton(
+          panel.sessionContext,
+          translator
+        )
       },
       {
         name: 'restart',
-        widget: Toolbar.createRestartButton(
+        widget: AppToolbar.createRestartButton(
           panel.sessionContext,
           sessionDialogs,
           translator
@@ -281,7 +300,7 @@ export namespace ToolbarItems {
       { name: 'spacer', widget: Toolbar.createSpacerItem() },
       {
         name: 'kernelName',
-        widget: Toolbar.createKernelNameItem(
+        widget: AppToolbar.createKernelNameItem(
           panel.sessionContext,
           sessionDialogs,
           translator
diff --git a/testutils/default.json b/packages/notebook/src/default.json
similarity index 100%
rename from testutils/default.json
rename to packages/notebook/src/default.json
diff --git a/packages/notebook/src/executionindicator.tsx b/packages/notebook/src/executionindicator.tsx
index f75cc5fe3eeb..112474d11a0f 100644
--- a/packages/notebook/src/executionindicator.tsx
+++ b/packages/notebook/src/executionindicator.tsx
@@ -1,21 +1,18 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ISessionContext,
-  translateKernelStatuses,
-  VDomModel,
-  VDomRenderer
-} from '@jupyterlab/apputils';
+import { ISessionContext, translateKernelStatuses } from '@jupyterlab/apputils';
 
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import React from 'react';
-import { interactiveItem, ProgressCircle } from '@jupyterlab/statusbar';
+import { ProgressCircle } from '@jupyterlab/statusbar';
 
 import {
   circleIcon,
   LabIcon,
-  offlineBoltIcon
+  offlineBoltIcon,
+  VDomModel,
+  VDomRenderer
 } from '@jupyterlab/ui-components';
 
 import { Notebook } from './widget';
@@ -67,7 +64,12 @@ export function ExecutionIndicatorComponent(
   }
 
   const progressBar = (percentage: number) => (
-    <ProgressCircle progress={percentage} width={16} height={24} />
+    <ProgressCircle
+      progress={percentage}
+      width={16}
+      height={24}
+      label={trans.__('Kernel status')}
+    />
   );
   const titleFactory = (translatedStatus: string) =>
     trans.__('Kernel status: %1', translatedStatus);
@@ -170,7 +172,7 @@ namespace ExecutionIndicatorComponent {
     /**
      * Execution state of selected notebook.
      */
-    state?: Private.IExecutionState;
+    state?: ExecutionIndicator.IExecutionState;
 
     /**
      * The application language translator.
@@ -189,7 +191,7 @@ export class ExecutionIndicator extends VDomRenderer<ExecutionIndicator.Model> {
   constructor(translator?: ITranslator, showProgress: boolean = true) {
     super(new ExecutionIndicator.Model());
     this.translator = translator || nullTranslator;
-    this.addClass(interactiveItem);
+    this.addClass('jp-mod-highlighted');
   }
 
   /**
@@ -228,6 +230,57 @@ export class ExecutionIndicator extends VDomRenderer<ExecutionIndicator.Model> {
  * A namespace for ExecutionIndicator statics.
  */
 export namespace ExecutionIndicator {
+  /**
+   * Execution state of a notebook.
+   */
+  export interface IExecutionState {
+    /**
+     * Execution status of kernel, this status is deducted from the
+     * number of scheduled code cells.
+     */
+    executionStatus: string;
+
+    /**
+     * Current status of kernel.
+     */
+    kernelStatus: ISessionContext.KernelDisplayStatus;
+
+    /**
+     * Total execution time.
+     */
+    totalTime: number;
+
+    /**
+     * Id of `setInterval`, it is used to start / stop the elapsed time
+     * counter.
+     */
+    interval: number;
+
+    /**
+     * Id of `setTimeout`, it is used to create / clear the state
+     * resetting request.
+     */
+    timeout: number;
+
+    /**
+     * Set of messages scheduled for executing, `executionStatus` is set
+     *  to `idle if the length of this set is 0 and to `busy` otherwise.
+     */
+    scheduledCell: Set<string>;
+
+    /**
+     * Total number of cells requested for executing, it is used to compute
+     * the execution progress in progress bar.
+     */
+    scheduledCellNumber: number;
+
+    /**
+     * Flag to reset the execution state when a code cell is scheduled for
+     * executing.
+     */
+    needReset: boolean;
+  }
+
   /**
    * A VDomModel for the execution status indicator.
    */
@@ -376,9 +429,9 @@ export namespace ExecutionIndicator {
      * @param nb - The notebook used to identify execution
      * state.
      *
-     * @return - The associated execution state.
+     * @returns - The associated execution state.
      */
-    public executionState(nb: Notebook): Private.IExecutionState | undefined {
+    executionState(nb: Notebook): IExecutionState | undefined {
       return this._notebookExecutionProgress.get(nb);
     }
 
@@ -392,7 +445,7 @@ export namespace ExecutionIndicator {
      * these cells. This `Timeout` will be cleared if there is any cell
      * scheduled after that.
      */
-    private _scheduleSwitchToIdle(state: Private.IExecutionState) {
+    private _scheduleSwitchToIdle(state: IExecutionState) {
       window.setTimeout(() => {
         state.executionStatus = 'idle';
         clearInterval(state.interval);
@@ -488,7 +541,7 @@ export namespace ExecutionIndicator {
      *
      * @param  data - the state to be updated.
      */
-    private _tick(data: Private.IExecutionState): void {
+    private _tick(data: IExecutionState): void {
       data.totalTime += 1;
       this.stateChanged.emit(void 0);
     }
@@ -498,7 +551,7 @@ export namespace ExecutionIndicator {
      *
      * @param  data - the state to be rested.
      */
-    private _resetTime(data: Private.IExecutionState): void {
+    private _resetTime(data: IExecutionState): void {
       data.totalTime = 0;
       data.scheduledCellNumber = 0;
       data.executionStatus = 'idle';
@@ -512,7 +565,7 @@ export namespace ExecutionIndicator {
       return this._renderFlag;
     }
 
-    public updateRenderOption(options: {
+    updateRenderOption(options: {
       showOnToolBar: boolean;
       showProgress: boolean;
     }): void {
@@ -542,7 +595,7 @@ export namespace ExecutionIndicator {
      */
     private _notebookExecutionProgress = new WeakMap<
       Notebook,
-      Private.IExecutionState
+      IExecutionState
     >();
 
     /**
@@ -553,8 +606,8 @@ export namespace ExecutionIndicator {
 
   export function createExecutionIndicatorItem(
     panel: NotebookPanel,
-    translator: ITranslator,
-    loadSettings: Promise<ISettingRegistry.ISettings> | undefined
+    translator?: ITranslator,
+    loadSettings?: Promise<ISettingRegistry.ISettings>
   ): Widget {
     const toolbarItem = new ExecutionIndicator(translator);
     toolbarItem.model.displayOption = {
@@ -585,9 +638,7 @@ export namespace ExecutionIndicator {
     return toolbarItem;
   }
 
-  export function getSettingValue(
-    settings: ISettingRegistry.ISettings
-  ): {
+  export function getSettingValue(settings: ISettingRegistry.ISettings): {
     showOnToolBar: boolean;
     showProgress: boolean;
   } {
@@ -607,54 +658,6 @@ export namespace ExecutionIndicator {
  * A namespace for module-private data.
  */
 namespace Private {
-  export interface IExecutionState {
-    /**
-     * Execution status of kernel, this status is deducted from the
-     * number of scheduled code cells.
-     */
-    executionStatus: string;
-
-    /**
-     * Current status of kernel.
-     */
-    kernelStatus: ISessionContext.KernelDisplayStatus;
-
-    /**
-     * Total execution time.
-     */
-    totalTime: number;
-
-    /**
-     * Id of `setInterval`, it is used to start / stop the elapsed time
-     * counter.
-     */
-    interval: number;
-
-    /**
-     * Id of `setTimeout`, it is used to create / clear the state
-     * resetting request.
-     */
-    timeout: number;
-
-    /**
-     * Set of messages scheduled for executing, `executionStatus` is set
-     *  to `idle if the length of this set is 0 and to `busy` otherwise.
-     */
-    scheduledCell: Set<string>;
-
-    /**
-     * Total number of cells requested for executing, it is used to compute
-     * the execution progress in progress bar.
-     */
-    scheduledCellNumber: number;
-
-    /**
-     * Flag to reset the execution state when a code cell is scheduled for
-     * executing.
-     */
-    needReset: boolean;
-  }
-
   export type DisplayOption = {
     /**
      * The option to show the indicator on status bar or toolbar.
diff --git a/packages/notebook/src/index.ts b/packages/notebook/src/index.ts
index ae9dd7c5d555..10dc0de12a18 100644
--- a/packages/notebook/src/index.ts
+++ b/packages/notebook/src/index.ts
@@ -6,15 +6,20 @@
  */
 
 export * from './actions';
+export * from './celllist';
 export * from './default-toolbar';
+export * from './executionindicator';
 export * from './model';
 export * from './modelfactory';
 export * from './modestatus';
+export * from './notebooklspadapter';
 export * from './notebooktools';
 export * from './panel';
+export * from './searchprovider';
+export * from './toc';
 export * from './tokens';
 export * from './tracker';
 export * from './truststatus';
 export * from './widget';
 export * from './widgetfactory';
-export * from './executionindicator';
+export * from './windowing';
diff --git a/packages/notebook/src/model.ts b/packages/notebook/src/model.ts
index 8969fdbae3c2..a9e437b8b3fe 100644
--- a/packages/notebook/src/model.ts
+++ b/packages/notebook/src/model.ts
@@ -2,34 +2,23 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Dialog, showDialog } from '@jupyterlab/apputils';
-import {
-  CellModel,
-  CodeCellModel,
-  ICellModel,
-  ICodeCellModel,
-  IMarkdownCellModel,
-  IRawCellModel,
-  MarkdownCellModel,
-  RawCellModel
-} from '@jupyterlab/cells';
+import { ICellModel } from '@jupyterlab/cells';
 import { IChangedArgs } from '@jupyterlab/coreutils';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
 import * as nbformat from '@jupyterlab/nbformat';
+import { IObservableList } from '@jupyterlab/observables';
 import {
-  IModelDB,
-  IObservableJSON,
-  IObservableList,
-  IObservableMap,
-  IObservableUndoableList,
-  ModelDB
-} from '@jupyterlab/observables';
-import * as models from '@jupyterlab/shared-models';
+  IMapChange,
+  ISharedNotebook,
+  NotebookChange,
+  YNotebook
+} from '@jupyter/ydoc';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { ReadonlyPartialJSONValue, UUID } from '@lumino/coreutils';
+import { JSONExt } from '@lumino/coreutils';
 import { ISignal, Signal } from '@lumino/signaling';
 import { CellList } from './celllist';
 
@@ -40,12 +29,7 @@ export interface INotebookModel extends DocumentRegistry.IModel {
   /**
    * The list of cells in the notebook.
    */
-  readonly cells: IObservableUndoableList<ICellModel>;
-
-  /**
-   * The cell model factory for the notebook.
-   */
-  readonly contentFactory: NotebookModel.IContentFactory;
+  readonly cells: CellList;
 
   /**
    * The major version number of the nbformat.
@@ -59,8 +43,19 @@ export interface INotebookModel extends DocumentRegistry.IModel {
 
   /**
    * The metadata associated with the notebook.
+   *
+   * ### Notes
+   * This is a copy of the metadata. Changing a part of it
+   * won't affect the model.
+   * As this returns a copy of all metadata, it is advised to
+   * use `getMetadata` to speed up the process of getting a single key.
+   */
+  readonly metadata: nbformat.INotebookMetadata;
+
+  /**
+   * Signal emitted when notebook metadata changes.
    */
-  readonly metadata: IObservableJSON;
+  readonly metadataChanged: ISignal<INotebookModel, IMapChange>;
 
   /**
    * The array of deleted cells since the notebook was last run.
@@ -68,10 +63,34 @@ export interface INotebookModel extends DocumentRegistry.IModel {
   readonly deletedCells: string[];
 
   /**
-   * If the model is initialized or not.
+   * Shared model
    */
-  isInitialized: boolean;
-  readonly sharedModel: models.ISharedNotebook;
+  readonly sharedModel: ISharedNotebook;
+
+  /**
+   * Delete a metadata
+   *
+   * @param key Metadata key
+   */
+  deleteMetadata(key: string): void;
+
+  /**
+   * Get a metadata
+   *
+   * ### Notes
+   * This returns a copy of the key value.
+   *
+   * @param key Metadata key
+   */
+  getMetadata(key: string): any;
+
+  /**
+   * Set a metadata
+   *
+   * @param key Metadata key
+   * @param value Metadata value
+   */
+  setMetadata(key: string, value: any): void;
 }
 
 /**
@@ -82,39 +101,35 @@ export class NotebookModel implements INotebookModel {
    * Construct a new notebook model.
    */
   constructor(options: NotebookModel.IOptions = {}) {
-    if (options.modelDB) {
-      this.modelDB = options.modelDB;
+    this.standaloneModel = typeof options.sharedModel === 'undefined';
+
+    if (options.sharedModel) {
+      this.sharedModel = options.sharedModel;
     } else {
-      this.modelDB = new ModelDB();
+      this.sharedModel = YNotebook.create({
+        disableDocumentWideUndoRedo:
+          options.disableDocumentWideUndoRedo ?? true,
+        data: {
+          nbformat: nbformat.MAJOR_VERSION,
+          nbformat_minor: nbformat.MINOR_VERSION,
+          metadata: {
+            kernelspec: { name: '', display_name: '' },
+            language_info: { name: options.languagePreference ?? '' }
+          }
+        }
+      });
     }
-    this.sharedModel = new models.YNotebook({
-      disableDocumentWideUndoRedo: options.disableDocumentWideUndoRedo ?? true
-    }) as models.ISharedNotebook;
-    this._isInitialized = options.isInitialized === false ? false : true;
-    const factory =
-      options.contentFactory || NotebookModel.defaultContentFactory;
-    this.contentFactory = factory.clone(this.modelDB.view('cells'));
-    this._cells = new CellList(
-      this.modelDB,
-      this.contentFactory,
-      this.sharedModel
-    );
-    this._trans = (options.translator || nullTranslator).load('jupyterlab');
-    this._cells.changed.connect(this._onCellsChanged, this);
 
-    // Handle initial metadata.
-    const metadata = this.modelDB.createMap('metadata');
-    if (!metadata.has('language_info')) {
-      const name = options.languagePreference || '';
-      metadata.set('language_info', { name });
-    }
-    this._ensureMetadata();
-    metadata.changed.connect(this._onMetadataChanged, this);
+    this._cells = new CellList(this.sharedModel);
+    this._trans = (options.translator || nullTranslator).load('jupyterlab');
     this._deletedCells = [];
     this._collaborationEnabled = !!options?.collaborationEnabled;
 
+    this._cells.changed.connect(this._onCellsChanged, this);
     this.sharedModel.changed.connect(this._onStateChanged, this);
+    this.sharedModel.metadataChanged.connect(this._onMetadataChanged, this);
   }
+
   /**
    * A signal emitted when the document content changes.
    */
@@ -122,6 +137,13 @@ export class NotebookModel implements INotebookModel {
     return this._contentChanged;
   }
 
+  /**
+   * Signal emitted when notebook metadata changes.
+   */
+  get metadataChanged(): ISignal<INotebookModel, IMapChange<any>> {
+    return this._metadataChanged;
+  }
+
   /**
    * A signal emitted when the document state changes.
    */
@@ -129,6 +151,13 @@ export class NotebookModel implements INotebookModel {
     return this._stateChanged;
   }
 
+  /**
+   * Get the observable list of notebook cells.
+   */
+  get cells(): CellList {
+    return this._cells;
+  }
+
   /**
    * The dirty state of the document.
    */
@@ -165,40 +194,37 @@ export class NotebookModel implements INotebookModel {
 
   /**
    * The metadata associated with the notebook.
+   *
+   * ### Notes
+   * This is a copy of the metadata. Changing a part of it
+   * won't affect the model.
+   * As this returns a copy of all metadata, it is advised to
+   * use `getMetadata` to speed up the process of getting a single key.
    */
-  get metadata(): IObservableJSON {
-    return this.modelDB.get('metadata') as IObservableJSON;
-  }
-
-  /**
-   * Get the observable list of notebook cells.
-   */
-  get cells(): IObservableUndoableList<ICellModel> {
-    return this._cells;
+  get metadata(): nbformat.INotebookMetadata {
+    return this.sharedModel.metadata;
   }
 
   /**
    * The major version number of the nbformat.
    */
   get nbformat(): number {
-    return this._nbformat;
+    return this.sharedModel.nbformat;
   }
 
   /**
    * The minor version number of the nbformat.
    */
   get nbformatMinor(): number {
-    return this._nbformatMinor;
+    return this.sharedModel.nbformat_minor;
   }
 
   /**
    * The default kernel name of the document.
    */
   get defaultKernelName(): string {
-    const spec = this.metadata.get(
-      'kernelspec'
-    ) as nbformat.IKernelspecMetadata;
-    return spec ? spec.name : '';
+    const spec = this.getMetadata('kernelspec');
+    return spec?.name ?? '';
   }
 
   /**
@@ -208,21 +234,12 @@ export class NotebookModel implements INotebookModel {
     return this._deletedCells;
   }
 
-  /**
-   * If the model is initialized or not.
-   */
-  get isInitialized(): boolean {
-    return this._isInitialized;
-  }
-
   /**
    * The default kernel language of the document.
    */
   get defaultKernelLanguage(): string {
-    const info = this.metadata.get(
-      'language_info'
-    ) as nbformat.ILanguageInfoMetadata;
-    return info ? info.name : '';
+    const info = this.getMetadata('language_info');
+    return info?.name ?? '';
   }
 
   /**
@@ -240,14 +257,52 @@ export class NotebookModel implements INotebookModel {
     if (this.isDisposed) {
       return;
     }
+    this._isDisposed = true;
+
     const cells = this.cells;
     this._cells = null!;
     cells.dispose();
-    this._isDisposed = true;
-    this.modelDB.dispose();
+    if (this.standaloneModel) {
+      this.sharedModel.dispose();
+    }
     Signal.clearData(this);
   }
 
+  /**
+   * Delete a metadata
+   *
+   * @param key Metadata key
+   */
+  deleteMetadata(key: string): void {
+    return this.sharedModel.deleteMetadata(key);
+  }
+
+  /**
+   * Get a metadata
+   *
+   * ### Notes
+   * This returns a copy of the key value.
+   *
+   * @param key Metadata key
+   */
+  getMetadata(key: string): any {
+    return this.sharedModel.getMetadata(key);
+  }
+
+  /**
+   * Set a metadata
+   *
+   * @param key Metadata key
+   * @param value Metadata value
+   */
+  setMetadata(key: string, value: any): void {
+    if (typeof value === 'undefined') {
+      this.sharedModel.deleteMetadata(key);
+    } else {
+      this.sharedModel.setMetadata(key, value);
+    }
+  }
+
   /**
    * Serialize the model to a string.
    */
@@ -269,26 +324,8 @@ export class NotebookModel implements INotebookModel {
    * Serialize the model to JSON.
    */
   toJSON(): nbformat.INotebookContent {
-    const cells: nbformat.ICell[] = [];
-    for (let i = 0; i < (this.cells?.length ?? 0); i++) {
-      const cell = this.cells.get(i).toJSON();
-      if (this._nbformat === 4 && this._nbformatMinor <= 4) {
-        // strip cell ids if we have notebook format 4.0-4.4
-        delete cell.id;
-      }
-      cells.push(cell);
-    }
     this._ensureMetadata();
-    const metadata = this.sharedModel.getMetadata();
-    for (const key of this.metadata.keys()) {
-      metadata[key] = JSON.parse(JSON.stringify(this.metadata.get(key)));
-    }
-    return {
-      metadata,
-      nbformat_minor: this._nbformatMinor,
-      nbformat: this._nbformat,
-      cells
-    };
+    return this.sharedModel.toJSON();
   }
 
   /**
@@ -298,52 +335,19 @@ export class NotebookModel implements INotebookModel {
    * Should emit a [contentChanged] signal.
    */
   fromJSON(value: nbformat.INotebookContent): void {
-    const cells: ICellModel[] = [];
-    const factory = this.contentFactory;
-    const useId = value.nbformat === 4 && value.nbformat_minor >= 5;
-    for (const cell of value.cells) {
-      const options: CellModel.IOptions = { cell };
-      if (useId) {
-        options.id = (cell as any).id;
-      }
-      switch (cell.cell_type) {
-        case 'code':
-          cells.push(factory.createCodeCell(options));
-          break;
-        case 'markdown':
-          cells.push(factory.createMarkdownCell(options));
-          break;
-        case 'raw':
-          cells.push(factory.createRawCell(options));
-          break;
-        default:
-          continue;
-      }
-    }
-    if (!cells.length) {
-      cells.push(factory.createCodeCell({}));
-    }
-    this.cells.beginCompoundOperation();
-    this.cells.clear();
-    this.cells.pushAll(cells);
-    this.cells.endCompoundOperation();
-
-    (this.sharedModel as models.YNotebook).nbformat_minor =
-      nbformat.MINOR_VERSION;
-    (this.sharedModel as models.YNotebook).nbformat = nbformat.MAJOR_VERSION;
+    const copy = JSONExt.deepCopy(value);
     const origNbformat = value.metadata.orig_nbformat;
 
-    if (value.nbformat !== this._nbformat) {
-      (this.sharedModel as models.YNotebook).nbformat = value.nbformat;
-    }
-    if (value.nbformat_minor > this._nbformatMinor) {
-      (this.sharedModel as models.YNotebook).nbformat_minor =
-        value.nbformat_minor;
-    }
-
     // Alert the user if the format changes.
-    if (origNbformat !== undefined && this._nbformat !== origNbformat) {
-      const newer = this._nbformat > origNbformat;
+    copy.nbformat = Math.max(value.nbformat, nbformat.MAJOR_VERSION);
+    if (
+      copy.nbformat !== value.nbformat ||
+      copy.nbformat_minor < nbformat.MINOR_VERSION
+    ) {
+      copy.nbformat_minor = nbformat.MINOR_VERSION;
+    }
+    if (origNbformat !== undefined && copy.nbformat !== origNbformat) {
+      const newer = copy.nbformat > origNbformat;
       let msg: string;
 
       if (newer) {
@@ -354,7 +358,7 @@ The next time you save this notebook, the current notebook format (v%2) will be
 'Older versions of Jupyter may not be able to read the new format.' To preserve the original format version,
 close the notebook without saving it.`,
           origNbformat,
-          this._nbformat
+          copy.nbformat
         );
       } else {
         msg = this._trans.__(
@@ -364,7 +368,7 @@ The next time you save this notebook, the current notebook format (v%2) will be
 Some features of the original notebook may not be available.' To preserve the original format version,
 close the notebook without saving it.`,
           origNbformat,
-          this._nbformat
+          copy.nbformat
         );
       }
       void showDialog({
@@ -374,41 +378,23 @@ close the notebook without saving it.`,
       });
     }
 
-    // Update the metadata.
-    this.metadata.clear();
-    const metadata = value.metadata;
-    for (const key in metadata) {
-      // orig_nbformat is not intended to be stored per spec.
-      if (key === 'orig_nbformat') {
-        continue;
-      }
-      this.metadata.set(key, metadata[key]);
+    // Ensure there is at least one cell
+    if ((copy.cells?.length ?? 0) === 0) {
+      copy['cells'] = [
+        { cell_type: 'code', source: '', metadata: { trusted: true } }
+      ];
     }
+    this.sharedModel.fromJSON(copy);
+
     this._ensureMetadata();
     this.dirty = true;
   }
 
-  /**
-   * Initialize the model with its current state.
-   *
-   * # Notes
-   * Adds an empty code cell if the model is empty
-   * and clears undo state.
-   */
-  initialize(): void {
-    if (!this.cells.length) {
-      const factory = this.contentFactory;
-      this.cells.push(factory.createCodeCell({}));
-    }
-    this._isInitialized = true;
-    this.cells.clearUndo();
-  }
-
   /**
    * Handle a change in the cells list.
    */
   private _onCellsChanged(
-    list: IObservableList<ICellModel>,
+    list: CellList,
     change: IObservableList.IChangedArgs<ICellModel>
   ): void {
     switch (change.type) {
@@ -430,9 +416,17 @@ close the notebook without saving it.`,
     this.triggerContentChange();
   }
 
+  private _onMetadataChanged(
+    sender: ISharedNotebook,
+    changes: IMapChange
+  ): void {
+    this._metadataChanged.emit(changes);
+    this.triggerContentChange();
+  }
+
   private _onStateChanged(
-    sender: models.ISharedNotebook,
-    changes: models.NotebookChange
+    sender: ISharedNotebook,
+    changes: NotebookChange
   ): void {
     if (changes.stateChange) {
       changes.stateChange.forEach(value => {
@@ -450,50 +444,20 @@ close the notebook without saving it.`,
         }
       });
     }
-
-    if (changes.nbformatChanged) {
-      const change = changes.nbformatChanged;
-      if (change.key === 'nbformat' && change.newValue !== undefined) {
-        this._nbformat = change.newValue;
-      }
-      if (change.key === 'nbformat_minor' && change.newValue !== undefined) {
-        this._nbformatMinor = change.newValue;
-      }
-    }
-
-    if (changes.metadataChange) {
-      const metadata = this.sharedModel.getMetadata();
-      if (metadata) {
-        this._modelDBMutex(() => {
-          this.metadata.clear();
-          Object.entries(metadata).forEach(([key, value]) => {
-            this.metadata.set(key, value);
-          });
-        });
-      }
-    }
-  }
-
-  private _onMetadataChanged(
-    metadata: IObservableJSON,
-    change: IObservableMap.IChangedArgs<ReadonlyPartialJSONValue | undefined>
-  ): void {
-    this._modelDBMutex(() => {
-      this.sharedModel.setMetadata(metadata.toJSON());
-    });
-    this.triggerContentChange();
   }
 
   /**
    * Make sure we have the required metadata fields.
    */
-  private _ensureMetadata(): void {
-    const metadata = this.metadata;
-    if (!metadata.has('language_info')) {
-      metadata.set('language_info', { name: '' });
+  private _ensureMetadata(languageName: string = ''): void {
+    if (!this.getMetadata('language_info')) {
+      this.sharedModel.setMetadata('language_info', { name: languageName });
     }
-    if (!metadata.has('kernelspec')) {
-      metadata.set('kernelspec', { name: '', display_name: '' });
+    if (!this.getMetadata('kernelspec')) {
+      this.sharedModel.setMetadata('kernelspec', {
+        name: '',
+        display_name: ''
+      });
     }
   }
 
@@ -519,26 +483,15 @@ close the notebook without saving it.`,
     return this._isDisposed;
   }
 
-  /**
-   * The cell model factory for the notebook.
-   */
-  readonly contentFactory: NotebookModel.IContentFactory;
-
   /**
    * The shared notebook model.
    */
-  readonly sharedModel: models.ISharedNotebook;
-
-  /**
-   * A mutex to update the shared model.
-   */
-  protected readonly _modelDBMutex = models.createMutex();
+  readonly sharedModel: ISharedNotebook;
 
   /**
-   * The underlying `IModelDB` instance in which model
-   * data is stored.
+   * Whether the model should disposed the shared model on disposal or not.
    */
-  readonly modelDB: IModelDB;
+  protected standaloneModel = false;
 
   private _dirty = false;
   private _readOnly = false;
@@ -547,11 +500,9 @@ close the notebook without saving it.`,
 
   private _trans: TranslationBundle;
   private _cells: CellList;
-  private _nbformat = nbformat.MAJOR_VERSION;
-  private _nbformatMinor = nbformat.MINOR_VERSION;
   private _deletedCells: string[];
-  private _isInitialized: boolean;
   private _isDisposed = false;
+  private _metadataChanged = new Signal<NotebookModel, IMapChange>(this);
   private _collaborationEnabled: boolean;
 }
 
@@ -562,34 +513,18 @@ export namespace NotebookModel {
   /**
    * An options object for initializing a notebook model.
    */
-  export interface IOptions {
+  export interface IOptions
+    extends DocumentRegistry.IModelOptions<ISharedNotebook> {
     /**
-     * The language preference for the model.
+     * Default cell type.
      */
-    languagePreference?: string;
-
-    /**
-     * A factory for creating cell models.
-     *
-     * The default is a shared factory instance.
-     */
-    contentFactory?: IContentFactory;
-
-    /**
-     * A modelDB for storing notebook data.
-     */
-    modelDB?: IModelDB;
+    defaultCell?: 'code' | 'markdown' | 'raw';
 
     /**
      * Language translator.
      */
     translator?: ITranslator;
 
-    /**
-     * If the model is initialized or not.
-     */
-    isInitialized?: boolean;
-
     /**
      * Defines if the document can be undo/redo.
      *
@@ -599,220 +534,5 @@ export namespace NotebookModel {
      * @alpha
      */
     disableDocumentWideUndoRedo?: boolean;
-
-    /**
-     * Whether collaboration should be enabled for this document model.
-     */
-    collaborationEnabled?: boolean;
   }
-
-  /**
-   * A factory for creating notebook model content.
-   */
-  export interface IContentFactory {
-    /**
-     * The factory for output area models.
-     */
-    readonly codeCellContentFactory: CodeCellModel.IContentFactory;
-
-    /**
-     * The IModelDB in which to put data for the notebook model.
-     */
-    modelDB: IModelDB | undefined;
-
-    /**
-     * Create a new cell by cell type.
-     *
-     * @param type:  the type of the cell to create.
-     *
-     * @param options: the cell creation options.
-     *
-     * #### Notes
-     * This method is intended to be a convenience method to programmatically
-     * call the other cell creation methods in the factory.
-     */
-    createCell(
-      type: nbformat.CellType,
-      options: CellModel.IOptions
-    ): ICellModel;
-
-    /**
-     * Create a new code cell.
-     *
-     * @param options - The options used to create the cell.
-     *
-     * @returns A new code cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     */
-    createCodeCell(options: CodeCellModel.IOptions): ICodeCellModel;
-
-    /**
-     * Create a new markdown cell.
-     *
-     * @param options - The options used to create the cell.
-     *
-     * @returns A new markdown cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     */
-    createMarkdownCell(options: CellModel.IOptions): IMarkdownCellModel;
-
-    /**
-     * Create a new raw cell.
-     *
-     * @param options - The options used to create the cell.
-     *
-     * @returns A new raw cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     */
-    createRawCell(options: CellModel.IOptions): IRawCellModel;
-
-    /**
-     * Clone the content factory with a new IModelDB.
-     */
-    clone(modelDB: IModelDB): IContentFactory;
-  }
-
-  /**
-   * The default implementation of an `IContentFactory`.
-   */
-  export class ContentFactory {
-    /**
-     * Create a new cell model factory.
-     */
-    constructor(options: ContentFactory.IOptions) {
-      this.codeCellContentFactory =
-        options.codeCellContentFactory || CodeCellModel.defaultContentFactory;
-      this.modelDB = options.modelDB;
-    }
-
-    /**
-     * The factory for code cell content.
-     */
-    readonly codeCellContentFactory: CodeCellModel.IContentFactory;
-
-    /**
-     * The IModelDB in which to put the notebook data.
-     */
-    readonly modelDB: IModelDB | undefined;
-
-    /**
-     * Create a new cell by cell type.
-     *
-     * @param type:  the type of the cell to create.
-     *
-     * @param options: the cell creation options.
-     *
-     * #### Notes
-     * This method is intended to be a convenience method to programmatically
-     * call the other cell creation methods in the factory.
-     */
-    createCell(
-      type: nbformat.CellType,
-      options: CellModel.IOptions
-    ): ICellModel {
-      switch (type) {
-        case 'code':
-          return this.createCodeCell(options);
-        case 'markdown':
-          return this.createMarkdownCell(options);
-        case 'raw':
-        default:
-          return this.createRawCell(options);
-      }
-    }
-
-    /**
-     * Create a new code cell.
-     *
-     * @param source - The data to use for the original source data.
-     *
-     * @returns A new code cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     *   If the contentFactory is not provided, the instance
-     *   `codeCellContentFactory` will be used.
-     */
-    createCodeCell(options: CodeCellModel.IOptions): ICodeCellModel {
-      if (options.contentFactory) {
-        options.contentFactory = this.codeCellContentFactory;
-      }
-      if (this.modelDB) {
-        if (!options.id) {
-          options.id = UUID.uuid4();
-        }
-        options.modelDB = this.modelDB.view(options.id);
-      }
-      return new CodeCellModel(options);
-    }
-
-    /**
-     * Create a new markdown cell.
-     *
-     * @param source - The data to use for the original source data.
-     *
-     * @returns A new markdown cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     */
-    createMarkdownCell(options: CellModel.IOptions): IMarkdownCellModel {
-      if (this.modelDB) {
-        if (!options.id) {
-          options.id = UUID.uuid4();
-        }
-        options.modelDB = this.modelDB.view(options.id);
-      }
-      return new MarkdownCellModel(options);
-    }
-
-    /**
-     * Create a new raw cell.
-     *
-     * @param source - The data to use for the original source data.
-     *
-     * @returns A new raw cell. If a source cell is provided, the
-     *   new cell will be initialized with the data from the source.
-     */
-    createRawCell(options: CellModel.IOptions): IRawCellModel {
-      if (this.modelDB) {
-        if (!options.id) {
-          options.id = UUID.uuid4();
-        }
-        options.modelDB = this.modelDB.view(options.id);
-      }
-      return new RawCellModel(options);
-    }
-
-    /**
-     * Clone the content factory with a new IModelDB.
-     */
-    clone(modelDB: IModelDB): ContentFactory {
-      return new ContentFactory({
-        modelDB: modelDB,
-        codeCellContentFactory: this.codeCellContentFactory
-      });
-    }
-  }
-
-  /**
-   * A namespace for the notebook model content factory.
-   */
-  export namespace ContentFactory {
-    /**
-     * The options used to initialize a `ContentFactory`.
-     */
-    export interface IOptions {
-      /**
-       * The factory for code cell model content.
-       */
-      codeCellContentFactory?: CodeCellModel.IContentFactory;
-
-      /**
-       * The modelDB in which to place new content.
-       */
-      modelDB?: IModelDB;
-    }
-  }
-
-  /**
-   * The default `ContentFactory` instance.
-   */
-  export const defaultContentFactory = new ContentFactory({});
 }
diff --git a/packages/notebook/src/modelfactory.ts b/packages/notebook/src/modelfactory.ts
index b09192494b56..0b13f785272e 100644
--- a/packages/notebook/src/modelfactory.ts
+++ b/packages/notebook/src/modelfactory.ts
@@ -1,9 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CodeCellModel } from '@jupyterlab/cells';
+import type { ISharedNotebook } from '@jupyter/ydoc';
 import { DocumentRegistry } from '@jupyterlab/docregistry';
-import { IModelDB } from '@jupyterlab/observables';
 import { Contents } from '@jupyterlab/services';
 import { INotebookModel, NotebookModel } from './model';
 
@@ -11,25 +10,17 @@ import { INotebookModel, NotebookModel } from './model';
  * A model factory for notebooks.
  */
 export class NotebookModelFactory
-  implements DocumentRegistry.IModelFactory<INotebookModel> {
+  implements DocumentRegistry.IModelFactory<INotebookModel>
+{
   /**
    * Construct a new notebook model factory.
    */
-  constructor(options: NotebookModelFactory.IOptions) {
-    this._collaborative = options.collaborative ?? true;
+  constructor(options: NotebookModelFactory.IOptions = {}) {
     this._disableDocumentWideUndoRedo =
       options.disableDocumentWideUndoRedo ?? true;
-    const codeCellContentFactory = options.codeCellContentFactory;
-    this.contentFactory =
-      options.contentFactory ||
-      new NotebookModel.ContentFactory({ codeCellContentFactory });
+    this._collaborative = options.collaborative ?? true;
   }
 
-  /**
-   * The content model factory used by the NotebookModelFactory.
-   */
-  readonly contentFactory: NotebookModel.IContentFactory;
-
   /**
    * Define the disableDocumentWideUndoRedo property.
    *
@@ -89,25 +80,16 @@ export class NotebookModelFactory
    * Create a new model for a given path.
    *
    * @param languagePreference - An optional kernel language preference.
-   * @param modelDB - An optional model storage.
-   * @param isInitialized - Whether the model is initialized or not.
-   * @param collaborationEnabled - Whether collaboration is enabled at the application level or not (default `false`).
    *
    * @returns A new document model.
    */
   createNew(
-    languagePreference?: string,
-    modelDB?: IModelDB,
-    isInitialized?: boolean,
-    collaborationEnabled?: boolean
+    options: DocumentRegistry.IModelOptions<ISharedNotebook> = {}
   ): INotebookModel {
-    const contentFactory = this.contentFactory;
     return new NotebookModel({
-      languagePreference,
-      contentFactory,
-      collaborationEnabled: collaborationEnabled && this.collaborative,
-      modelDB,
-      isInitialized,
+      languagePreference: options.languagePreference,
+      sharedModel: options.sharedModel,
+      collaborationEnabled: options.collaborationEnabled && this.collaborative,
       disableDocumentWideUndoRedo: this._disableDocumentWideUndoRedo
     });
   }
@@ -123,7 +105,6 @@ export class NotebookModelFactory
    * Defines if the document can be undo/redo.
    */
   private _disableDocumentWideUndoRedo: boolean;
-
   private _disposed = false;
   private _collaborative: boolean;
 }
@@ -150,16 +131,5 @@ export namespace NotebookModelFactory {
      * @alpha
      */
     disableDocumentWideUndoRedo?: boolean;
-
-    /**
-     * The factory for code cell content.
-     */
-    codeCellContentFactory?: CodeCellModel.IContentFactory;
-
-    /**
-     * The content factory used by the NotebookModelFactory.  If
-     * given, it will supersede the `codeCellContentFactory`.
-     */
-    contentFactory?: NotebookModel.IContentFactory;
   }
 }
diff --git a/packages/notebook/src/modestatus.tsx b/packages/notebook/src/modestatus.tsx
index a123d947f5a0..b79770fb0f4c 100644
--- a/packages/notebook/src/modestatus.tsx
+++ b/packages/notebook/src/modestatus.tsx
@@ -1,10 +1,15 @@
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { TextItem } from '@jupyterlab/statusbar';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
 import * as React from 'react';
 import { Notebook, NotebookMode } from '.';
 
@@ -71,7 +76,7 @@ export class CommandEditStatus extends VDomRenderer<CommandEditStatus.Model> {
   /**
    * Render the CommandEdit status item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (!this.model) {
       return null;
     }
@@ -104,7 +109,7 @@ export namespace CommandEditStatus {
     /**
      * The current mode of the current notebook.
      */
-    get notebookMode() {
+    get notebookMode(): NotebookMode {
       return this._notebookMode;
     }
 
diff --git a/packages/notebook/src/notebookfooter.ts b/packages/notebook/src/notebookfooter.ts
new file mode 100644
index 000000000000..3d6f77c1446f
--- /dev/null
+++ b/packages/notebook/src/notebookfooter.ts
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { Widget } from '@lumino/widgets';
+import { Message } from '@lumino/messaging';
+import { Notebook } from './widget';
+import { NotebookActions } from './actions';
+
+const NOTEBOOK_FOOTER_CLASS = 'jp-Notebook-footer';
+
+/**
+ * The data attribute added to a widget that can be traversed with up/down arrow and j/k shortcuts.
+ */
+const TRAVERSABLE = 'jpTraversable';
+
+/**
+ * A footer widget added after the last cell of the notebook.
+ */
+export class NotebookFooter extends Widget {
+  /**
+   * Construct a footer widget.
+   */
+  constructor(protected notebook: Notebook) {
+    super({ node: document.createElement('button') });
+    this.node.dataset[TRAVERSABLE] = 'true';
+    const trans = notebook.translator.load('jupyterlab');
+    this.addClass(NOTEBOOK_FOOTER_CLASS);
+    this.node.innerText = trans.__('Click to add a cell.');
+  }
+
+  /**
+   * Handle incoming events.
+   */
+  handleEvent(event: Event): void {
+    switch (event.type) {
+      case 'click':
+        this.onClick();
+        break;
+      case 'keydown':
+        if ((event as KeyboardEvent).key === 'ArrowUp') {
+          this.onArrowUp();
+          break;
+        }
+    }
+  }
+
+  /**
+   * On single click (mouse event), insert a cell below (at the end of the notebook as default behavior).
+   */
+  protected onClick(): void {
+    if (this.notebook.widgets.length > 0) {
+      this.notebook.activeCellIndex = this.notebook.widgets.length - 1;
+    }
+    NotebookActions.insertBelow(this.notebook);
+  }
+
+  /**
+   * On arrow up key pressed (keydown keyboard event).
+   * @deprecated To be removed in v5, this is a no-op
+   */
+  protected onArrowUp(): void {
+    // The specific behavior has been removed in https://github.com/jupyterlab/jupyterlab/pull/14796
+  }
+
+  /*
+   * Handle `after-detach` messages for the widget.
+   */
+  protected onAfterAttach(msg: Message): void {
+    super.onAfterAttach(msg);
+    this.node.addEventListener('click', this);
+    this.node.addEventListener('keydown', this);
+  }
+
+  /**
+   * Handle `before-detach` messages for the widget.
+   */
+  protected onBeforeDetach(msg: Message): void {
+    this.node.removeEventListener('click', this);
+    this.node.removeEventListener('keydown', this);
+    super.onBeforeDetach(msg);
+  }
+}
diff --git a/packages/notebook/src/notebooklspadapter.ts b/packages/notebook/src/notebooklspadapter.ts
new file mode 100644
index 000000000000..77e91d2de58a
--- /dev/null
+++ b/packages/notebook/src/notebooklspadapter.ts
@@ -0,0 +1,491 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { SessionContext } from '@jupyterlab/apputils';
+import { Cell, ICellModel } from '@jupyterlab/cells';
+import {
+  Document,
+  IAdapterOptions,
+  IVirtualPosition,
+  untilReady,
+  VirtualDocument,
+  WidgetLSPAdapter
+} from '@jupyterlab/lsp';
+import * as nbformat from '@jupyterlab/nbformat';
+import { IObservableList } from '@jupyterlab/observables';
+import { Session } from '@jupyterlab/services';
+import { PromiseDelegate } from '@lumino/coreutils';
+import { Signal } from '@lumino/signaling';
+
+import { NotebookPanel } from './panel';
+import { Notebook } from './widget';
+import { CellList } from './celllist';
+
+type ILanguageInfoMetadata = nbformat.ILanguageInfoMetadata;
+
+export class NotebookAdapter extends WidgetLSPAdapter<NotebookPanel> {
+  constructor(
+    public editorWidget: NotebookPanel,
+    protected options: IAdapterOptions
+  ) {
+    super(editorWidget, options);
+    this._editorToCell = new Map();
+    this.editor = editorWidget.content;
+    this._cellToEditor = new WeakMap();
+    Promise.all([
+      this.widget.context.sessionContext.ready,
+      this.connectionManager.ready
+    ])
+      .then(async () => {
+        await this.initOnceReady();
+        this._readyDelegate.resolve();
+      })
+      .catch(console.error);
+  }
+
+  /**
+   * The wrapped `Notebook` widget.
+   */
+  readonly editor: Notebook;
+
+  /**
+   * Get current path of the document.
+   */
+  get documentPath(): string {
+    return this.widget.context.path;
+  }
+
+  /**
+   * Get the mime type of the document.
+   */
+  get mimeType(): string {
+    let mimeType: string | string[];
+    let languageMetadata = this.language_info();
+    if (!languageMetadata || !languageMetadata.mimetype) {
+      // fallback to the code cell mime type if no kernel in use
+      mimeType = this.widget.content.codeMimetype;
+    } else {
+      mimeType = languageMetadata.mimetype;
+    }
+    return Array.isArray(mimeType) ? mimeType[0] ?? 'text/plain' : mimeType;
+  }
+
+  /**
+   * Get the file extension of the document.
+   */
+  get languageFileExtension(): string | undefined {
+    let languageMetadata = this.language_info();
+    if (!languageMetadata || !languageMetadata.file_extension) {
+      return;
+    }
+    return languageMetadata.file_extension.replace('.', '');
+  }
+
+  /**
+   * Get the inner HTMLElement of the document widget.
+   */
+  get wrapperElement(): HTMLElement {
+    return this.widget.node;
+  }
+
+  /**
+   *  Get the list of CM editor with its type in the document,
+   */
+  get editors(): Document.ICodeBlockOptions[] {
+    if (this.isDisposed) {
+      return [];
+    }
+
+    let notebook = this.widget.content;
+
+    this._editorToCell.clear();
+
+    if (notebook.isDisposed) {
+      return [];
+    }
+
+    return notebook.widgets.map(cell => {
+      return {
+        ceEditor: this._getCellEditor(cell),
+        type: cell.model.type,
+        value: cell.model.sharedModel.getSource()
+      };
+    });
+  }
+
+  /**
+   * Get the activated CM editor.
+   */
+  get activeEditor(): Document.IEditor | undefined {
+    return this.editor.activeCell
+      ? this._getCellEditor(this.editor.activeCell)
+      : undefined;
+  }
+
+  /**
+   * Promise that resolves once the adapter is initialized
+   */
+  get ready(): Promise<void> {
+    return this._readyDelegate.promise;
+  }
+
+  /**
+   * Get the index of editor from the cursor position in the virtual
+   * document.
+   * @deprecated This is error-prone and will be removed in JupyterLab 5.0, use `getEditorIndex()` with `virtualDocument.getEditorAtVirtualLine(position)` instead.
+   *
+   * @param position - the position of cursor in the virtual document.
+   */
+  getEditorIndexAt(position: IVirtualPosition): number {
+    let cell = this._getCellAt(position);
+    let notebook = this.widget.content;
+    return notebook.widgets.findIndex(otherCell => {
+      return cell === otherCell;
+    });
+  }
+
+  /**
+   * Get the index of input editor
+   *
+   * @param ceEditor - instance of the code editor
+   */
+  getEditorIndex(ceEditor: Document.IEditor): number {
+    let cell = this._editorToCell.get(ceEditor)!;
+    return this.editor.widgets.findIndex(otherCell => {
+      return cell === otherCell;
+    });
+  }
+
+  /**
+   * Get the wrapper of input editor.
+   *
+   * @param ceEditor - instance of the code editor
+   */
+  getEditorWrapper(ceEditor: Document.IEditor): HTMLElement {
+    let cell = this._editorToCell.get(ceEditor)!;
+    return cell.node;
+  }
+
+  /**
+   * Callback on kernel changed event, it will disconnect the
+   * document with the language server and then reconnect.
+   *
+   * @param _session - Session context of changed kernel
+   * @param change - Changed data
+   */
+  async onKernelChanged(
+    _session: SessionContext,
+    change: Session.ISessionConnection.IKernelChangedArgs
+  ): Promise<void> {
+    if (!change.newValue) {
+      return;
+    }
+    try {
+      // note: we need to wait until ready before updating language info
+      const oldLanguageInfo = this._languageInfo;
+      await untilReady(this.isReady, -1);
+      await this._updateLanguageInfo();
+      const newLanguageInfo = this._languageInfo;
+      if (
+        oldLanguageInfo?.name != newLanguageInfo.name ||
+        oldLanguageInfo?.mimetype != newLanguageInfo?.mimetype ||
+        oldLanguageInfo?.file_extension != newLanguageInfo?.file_extension
+      ) {
+        console.log(
+          `Changed to ${this._languageInfo.name} kernel, reconnecting`
+        );
+        this.reloadConnection();
+      } else {
+        console.log(
+          'Keeping old LSP connection as the new kernel uses the same langauge'
+        );
+      }
+    } catch (err) {
+      console.warn(err);
+      // try to reconnect anyway
+      this.reloadConnection();
+    }
+  }
+
+  /**
+   * Dispose the widget.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this.widget.context.sessionContext.kernelChanged.disconnect(
+      this.onKernelChanged,
+      this
+    );
+    this.widget.content.activeCellChanged.disconnect(
+      this._activeCellChanged,
+      this
+    );
+
+    super.dispose();
+
+    // editors are needed for the parent dispose() to unbind signals, so they are the last to go
+    this._editorToCell.clear();
+    Signal.clearData(this);
+  }
+
+  /**
+   * Method to check if the notebook context is ready.
+   */
+  isReady(): boolean {
+    return (
+      !this.widget.isDisposed &&
+      this.widget.context.isReady &&
+      this.widget.content.isVisible &&
+      this.widget.content.widgets.length > 0 &&
+      this.widget.context.sessionContext.session?.kernel != null
+    );
+  }
+
+  /**
+   * Update the virtual document on cell changing event.
+   *
+   * @param cells - Observable list of changed cells
+   * @param change - Changed data
+   */
+  async handleCellChange(
+    cells: CellList,
+    change: IObservableList.IChangedArgs<ICellModel>
+  ): Promise<void> {
+    let cellsAdded: ICellModel[] = [];
+    let cellsRemoved: ICellModel[] = [];
+    const type = this._type;
+    if (change.type === 'set') {
+      // handling of conversions is important, because the editors get re-used and their handlers inherited,
+      // so we need to clear our handlers from editors of e.g. markdown cells which previously were code cells.
+      let convertedToMarkdownOrRaw = [];
+      let convertedToCode = [];
+
+      if (change.newValues.length === change.oldValues.length) {
+        // during conversion the cells should not get deleted nor added
+        for (let i = 0; i < change.newValues.length; i++) {
+          if (
+            change.oldValues[i].type === type &&
+            change.newValues[i].type !== type
+          ) {
+            convertedToMarkdownOrRaw.push(change.newValues[i]);
+          } else if (
+            change.oldValues[i].type !== type &&
+            change.newValues[i].type === type
+          ) {
+            convertedToCode.push(change.newValues[i]);
+          }
+        }
+        cellsAdded = convertedToCode;
+        cellsRemoved = convertedToMarkdownOrRaw;
+      }
+    } else if (change.type == 'add') {
+      cellsAdded = change.newValues.filter(
+        cellModel => cellModel.type === type
+      );
+    }
+    // note: editorRemoved is not emitted for removal of cells by change of type 'remove' (but only during cell type conversion)
+    // because there is no easy way to get the widget associated with the removed cell(s) - because it is no
+    // longer in the notebook widget list! It would need to be tracked on our side, but it is not necessary
+    // as (except for a tiny memory leak) it should not impact the functionality in any way
+
+    if (
+      cellsRemoved.length ||
+      cellsAdded.length ||
+      change.type === 'set' ||
+      change.type === 'move' ||
+      change.type === 'remove'
+    ) {
+      // in contrast to the file editor document which can be only changed by the modification of the editor content,
+      // the notebook document cna also get modified by a change in the number or arrangement of editors themselves;
+      // for this reason each change has to trigger documents update (so that LSP mirror is in sync).
+      await this.updateDocuments();
+    }
+
+    for (let cellModel of cellsAdded) {
+      let cellWidget = this.widget.content.widgets.find(
+        cell => cell.model.id === cellModel.id
+      );
+      if (!cellWidget) {
+        console.warn(
+          `Widget for added cell with ID: ${cellModel.id} not found!`
+        );
+        continue;
+      }
+
+      // Add editor to the mapping if needed
+      this._getCellEditor(cellWidget);
+    }
+  }
+
+  /**
+   * Generate the virtual document associated with the document.
+   */
+  createVirtualDocument(): VirtualDocument {
+    return new VirtualDocument({
+      language: this.language,
+      foreignCodeExtractors: this.options.foreignCodeExtractorsManager,
+      path: this.documentPath,
+      fileExtension: this.languageFileExtension,
+      // notebooks are continuous, each cell is dependent on the previous one
+      standalone: false,
+      // notebooks are not supported by LSP servers
+      hasLspSupportedFile: false
+    });
+  }
+
+  /**
+   * Get the metadata of notebook.
+   */
+  protected language_info(): ILanguageInfoMetadata {
+    return this._languageInfo;
+  }
+  /**
+   * Initialization function called once the editor and the LSP connection
+   * manager is ready. This function will create the virtual document and
+   * connect various signals.
+   */
+  protected async initOnceReady(): Promise<void> {
+    await untilReady(this.isReady.bind(this), -1);
+    await this._updateLanguageInfo();
+    this.initVirtual();
+
+    // connect the document, but do not open it as the adapter will handle this
+    // after registering all features
+    this.connectDocument(this.virtualDocument!, false).catch(console.warn);
+
+    this.widget.context.sessionContext.kernelChanged.connect(
+      this.onKernelChanged,
+      this
+    );
+
+    this.widget.content.activeCellChanged.connect(
+      this._activeCellChanged,
+      this
+    );
+    this._connectModelSignals(this.widget);
+    this.editor.modelChanged.connect(notebook => {
+      // note: this should not usually happen;
+      // there is no default action that would trigger this,
+      // its just a failsafe in case if another extension decides
+      // to swap the notebook model
+      console.warn(
+        'Model changed, connecting cell change handler; this is not something we were expecting'
+      );
+      this._connectModelSignals(notebook);
+    });
+  }
+
+  /**
+   * Connect the cell changed event to its handler
+   *
+   * @param  notebook - The notebook that emitted event.
+   */
+  private _connectModelSignals(notebook: NotebookPanel | Notebook) {
+    if (notebook.model === null) {
+      console.warn(
+        `Model is missing for notebook ${notebook}, cannot connect cell changed signal!`
+      );
+    } else {
+      notebook.model.cells.changed.connect(this.handleCellChange, this);
+    }
+  }
+
+  /**
+   * Update the stored language info with the one from the notebook.
+   */
+  private async _updateLanguageInfo(): Promise<void> {
+    const language_info = (
+      await this.widget.context.sessionContext?.session?.kernel?.info
+    )?.language_info;
+    if (language_info) {
+      this._languageInfo = language_info;
+    } else {
+      throw new Error(
+        'Language info update failed (no session, kernel, or info available)'
+      );
+    }
+  }
+
+  /**
+   * Handle the cell changed event
+   * @param  notebook - The notebook that emitted event
+   * @param cell - Changed cell.
+   */
+  private _activeCellChanged(notebook: Notebook, cell: Cell | null) {
+    if (!cell || cell.model.type !== this._type) {
+      return;
+    }
+
+    this._activeEditorChanged.emit({
+      editor: this._getCellEditor(cell)
+    });
+  }
+
+  /**
+   * Get the cell at the cursor position of the virtual document.
+   * @param  pos - Position in the virtual document.
+   */
+  private _getCellAt(pos: IVirtualPosition): Cell {
+    let editor = this.virtualDocument!.getEditorAtVirtualLine(pos);
+    return this._editorToCell.get(editor)!;
+  }
+
+  /**
+   * Get the cell editor and add new ones to the mappings.
+   *
+   * @param cell Cell widget
+   * @returns Cell editor accessor
+   */
+  private _getCellEditor(cell: Cell): Document.IEditor {
+    if (!this._cellToEditor.has(cell)) {
+      const editor = Object.freeze({
+        getEditor: () => cell.editor,
+        ready: async () => {
+          await cell.ready;
+          return cell.editor!;
+        },
+        reveal: async () => {
+          await this.editor.scrollToCell(cell);
+          return cell.editor!;
+        }
+      });
+
+      this._cellToEditor.set(cell, editor);
+      this._editorToCell.set(editor, cell);
+      cell.disposed.connect(() => {
+        this._cellToEditor.delete(cell);
+        this._editorToCell.delete(editor);
+        this._editorRemoved.emit({
+          editor
+        });
+      });
+
+      this._editorAdded.emit({
+        editor
+      });
+    }
+
+    return this._cellToEditor.get(cell)!;
+  }
+
+  /**
+   * A map between the editor accessor and the containing cell
+   */
+  private _editorToCell: Map<Document.IEditor, Cell>;
+
+  /**
+   * Mapping of cell to editor accessor to ensure accessor uniqueness.
+   */
+  private _cellToEditor: WeakMap<Cell, Document.IEditor>;
+
+  /**
+   * Metadata of the notebook
+   */
+  private _languageInfo: ILanguageInfoMetadata;
+
+  private _type: nbformat.CellType = 'code';
+
+  private _readyDelegate = new PromiseDelegate<void>();
+}
diff --git a/packages/notebook/src/notebooktools.ts b/packages/notebook/src/notebooktools.ts
index 3e4a72baf04f..d1baa3b636bc 100644
--- a/packages/notebook/src/notebooktools.ts
+++ b/packages/notebook/src/notebooktools.ts
@@ -1,27 +1,15 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Collapse, Styling } from '@jupyterlab/apputils';
 import { Cell, ICellModel } from '@jupyterlab/cells';
-import {
-  CodeEditor,
-  CodeEditorWrapper,
-  JSONEditor
-} from '@jupyterlab/codeeditor';
-import * as nbformat from '@jupyterlab/nbformat';
-import { IObservableMap, ObservableJSON } from '@jupyterlab/observables';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { ArrayExt, chain, each } from '@lumino/algorithm';
-import {
-  ReadonlyPartialJSONObject,
-  ReadonlyPartialJSONValue
-} from '@lumino/coreutils';
+import { CodeEditor, JSONEditor } from '@jupyterlab/codeeditor';
+import { ObservableJSON } from '@jupyterlab/observables';
+import { IMapChange } from '@jupyter/ydoc';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { Collapser } from '@jupyterlab/ui-components';
+import { ArrayExt } from '@lumino/algorithm';
+import { ReadonlyPartialJSONValue } from '@lumino/coreutils';
 import { ConflatableMessage, Message, MessageLoop } from '@lumino/messaging';
-import { h, VirtualDOM, VirtualNode } from '@lumino/virtualdom';
 import { PanelLayout, Widget } from '@lumino/widgets';
 import { INotebookModel } from './model';
 import { NotebookPanel } from './panel';
@@ -72,14 +60,10 @@ export class NotebookTools extends Widget implements INotebookTools {
     this.addClass('jp-NotebookTools');
 
     this.translator = options.translator || nullTranslator;
-    this._trans = this.translator.load('jupyterlab');
-    this._commonTools = new RankedPanel<NotebookTools.Tool>();
-    this._advancedTools = new RankedPanel<NotebookTools.Tool>();
-    this._advancedTools.title.label = this._trans.__('Advanced Tools');
 
-    const layout = (this.layout = new PanelLayout());
-    layout.addWidget(this._commonTools);
-    layout.addWidget(new Collapse({ widget: this._advancedTools }));
+    this._tools = [];
+
+    this.layout = new PanelLayout();
 
     this._tracker = options.tracker;
     this._tracker.currentChanged.connect(
@@ -127,10 +111,12 @@ export class NotebookTools extends Widget implements INotebookTools {
     const rank = options.rank ?? 100;
 
     let section: RankedPanel<NotebookTools.Tool>;
-    if (options.section === 'advanced') {
-      section = this._advancedTools;
-    } else {
-      section = this._commonTools;
+    const extendedTool = this._tools.find(
+      extendedTool => extendedTool.section === options.section
+    );
+    if (extendedTool) section = extendedTool.panel;
+    else {
+      throw new Error(`The section ${options.section} does not exist`);
     }
 
     tool.addClass('jp-NotebookTools-tool');
@@ -144,6 +130,57 @@ export class NotebookTools extends Widget implements INotebookTools {
     MessageLoop.sendMessage(tool, NotebookTools.ActiveCellMessage);
   }
 
+  /*
+   * Add a section to the notebook tool with its widget
+   */
+  addSection(options: NotebookTools.IAddSectionOptions): void {
+    const sectionName = options.sectionName;
+    const label = options.label || options.sectionName;
+    const widget = options.tool;
+    let rank = options.rank ?? null;
+
+    const newSection = new RankedPanel<NotebookTools.Tool>();
+    newSection.title.label = label;
+
+    if (widget) newSection.addWidget(widget, 0);
+
+    this._tools.push({
+      section: sectionName,
+      panel: newSection,
+      rank: rank
+    });
+
+    if (rank != null)
+      (this.layout as PanelLayout).insertWidget(
+        rank,
+        new Collapser({ widget: newSection })
+      );
+    else {
+      // If no rank is provided, try to add the new section before the AdvancedTools.
+      let advancedToolsRank = null;
+      const layout = this.layout as PanelLayout;
+      for (let i = 0; i < layout.widgets.length; i++) {
+        let w = layout.widgets[i];
+        if (w instanceof Collapser) {
+          if (w.widget.id === 'advancedToolsSection') {
+            advancedToolsRank = i;
+            break;
+          }
+        }
+      }
+
+      if (advancedToolsRank !== null)
+        (this.layout as PanelLayout).insertWidget(
+          advancedToolsRank,
+          new Collapser({ widget: newSection })
+        );
+      else
+        (this.layout as PanelLayout).addWidget(
+          new Collapser({ widget: newSection })
+        );
+    }
+  }
+
   /**
    * Handle a change to the notebook panel.
    */
@@ -152,7 +189,7 @@ export class NotebookTools extends Widget implements INotebookTools {
       this._prevActiveNotebookModel &&
       !this._prevActiveNotebookModel.isDisposed
     ) {
-      this._prevActiveNotebookModel.metadata.changed.disconnect(
+      this._prevActiveNotebookModel.metadataChanged.disconnect(
         this._onActiveNotebookPanelMetadataChanged,
         this
       );
@@ -163,14 +200,14 @@ export class NotebookTools extends Widget implements INotebookTools {
         : null;
     this._prevActiveNotebookModel = activeNBModel;
     if (activeNBModel) {
-      activeNBModel.metadata.changed.connect(
+      activeNBModel.metadataChanged.connect(
         this._onActiveNotebookPanelMetadataChanged,
         this
       );
     }
-    each(this._toolChildren(), widget => {
+    for (const widget of this._toolChildren()) {
       MessageLoop.sendMessage(widget, NotebookTools.ActiveNotebookPanelMessage);
-    });
+    }
   }
 
   /**
@@ -178,7 +215,7 @@ export class NotebookTools extends Widget implements INotebookTools {
    */
   private _onActiveCellChanged(): void {
     if (this._prevActiveCell && !this._prevActiveCell.isDisposed) {
-      this._prevActiveCell.metadata.changed.disconnect(
+      this._prevActiveCell.metadataChanged.disconnect(
         this._onActiveCellMetadataChanged,
         this
       );
@@ -186,65 +223,65 @@ export class NotebookTools extends Widget implements INotebookTools {
     const activeCell = this.activeCell ? this.activeCell.model : null;
     this._prevActiveCell = activeCell;
     if (activeCell) {
-      activeCell.metadata.changed.connect(
+      activeCell.metadataChanged.connect(
         this._onActiveCellMetadataChanged,
         this
       );
     }
-    each(this._toolChildren(), widget => {
+    for (const widget of this._toolChildren()) {
       MessageLoop.sendMessage(widget, NotebookTools.ActiveCellMessage);
-    });
+    }
   }
 
   /**
    * Handle a change in the selection.
    */
   private _onSelectionChanged(): void {
-    each(this._toolChildren(), widget => {
+    for (const widget of this._toolChildren()) {
       MessageLoop.sendMessage(widget, NotebookTools.SelectionMessage);
-    });
+    }
   }
 
   /**
    * Handle a change in the active cell metadata.
    */
   private _onActiveNotebookPanelMetadataChanged(
-    sender: IObservableMap<ReadonlyPartialJSONValue | undefined>,
-    args: IObservableMap.IChangedArgs<ReadonlyPartialJSONValue>
+    sender: INotebookModel,
+    args: IMapChange
   ): void {
     const message = new ObservableJSON.ChangeMessage(
       'activenotebookpanel-metadata-changed',
-      args
+      { oldValue: undefined, newValue: undefined, ...args }
     );
-    each(this._toolChildren(), widget => {
+    for (const widget of this._toolChildren()) {
       MessageLoop.sendMessage(widget, message);
-    });
+    }
   }
 
   /**
    * Handle a change in the notebook model metadata.
    */
   private _onActiveCellMetadataChanged(
-    sender: IObservableMap<ReadonlyPartialJSONValue | undefined>,
-    args: IObservableMap.IChangedArgs<ReadonlyPartialJSONValue>
+    sender: ICellModel,
+    args: IMapChange
   ): void {
     const message = new ObservableJSON.ChangeMessage(
       'activecell-metadata-changed',
-      args
+      { newValue: undefined, oldValue: undefined, ...args }
     );
-    each(this._toolChildren(), widget => {
+    for (const widget of this._toolChildren()) {
       MessageLoop.sendMessage(widget, message);
-    });
+    }
   }
 
-  private _toolChildren() {
-    return chain(this._commonTools.children(), this._advancedTools.children());
+  private *_toolChildren() {
+    for (let tool of this._tools) {
+      yield* tool.panel.children();
+    }
   }
 
   translator: ITranslator;
-  private _trans: TranslationBundle;
-  private _commonTools: RankedPanel<NotebookTools.Tool>;
-  private _advancedTools: RankedPanel<NotebookTools.Tool>;
+  private _tools: Array<NotebookTools.IToolPanel>;
   private _tracker: INotebookTracker;
   private _prevActiveCell: ICellModel | null;
   private _prevActiveNotebookModel: INotebookModel | null;
@@ -265,6 +302,26 @@ export namespace NotebookTools {
     ReadonlyPartialJSONValue
   ][];
 
+  /**
+   * Interface for an extended panel section.
+   */
+  export interface IToolPanel {
+    /**
+     * The name of the section.
+     */
+    section: string;
+
+    /**
+     * The associated panel, only one for a section.
+     */
+    panel: RankedPanel<NotebookTools.Tool>;
+
+    /**
+     * The rank of the section on the notebooktools panel.
+     */
+    rank?: number | null;
+  }
+
   /**
    * The options used to create a NotebookTools object.
    */
@@ -287,12 +344,12 @@ export namespace NotebookTools {
     /**
      * The tool to add to the notebook tools area.
      */
-    tool: Tool;
+    tool: INotebookTools.ITool;
 
     /**
      * The section to which the tool should be added.
      */
-    section?: 'common' | 'advanced';
+    section: string;
 
     /**
      * The rank order of the widget among its siblings.
@@ -300,6 +357,31 @@ export namespace NotebookTools {
     rank?: number;
   }
 
+  /**
+   * The options used to add a section to the notebook tools.
+   */
+  export interface IAddSectionOptions {
+    /**
+     * The name of the new section.
+     */
+    sectionName: string;
+
+    /**
+     * The tool to add to the notebook tools area.
+     */
+    tool?: INotebookTools.ITool;
+
+    /**
+     * The label of the new section.
+     */
+    label?: string;
+
+    /**
+     * The rank order of the section among its siblings.
+     */
+    rank?: number;
+  }
+
   /**
    * A singleton conflatable `'activenotebookpanel-changed'` message.
    */
@@ -326,7 +408,7 @@ export namespace NotebookTools {
      */
     notebookTools: INotebookTools;
 
-    dispose() {
+    dispose(): void {
       super.dispose();
       if (this.notebookTools) {
         this.notebookTools = null!;
@@ -418,109 +500,6 @@ export namespace NotebookTools {
     }
   }
 
-  /**
-   * A cell tool displaying the active cell contents.
-   */
-  export class ActiveCellTool extends Tool {
-    /**
-     * Construct a new active cell tool.
-     */
-    constructor() {
-      super();
-      this.addClass('jp-ActiveCellTool');
-      this.addClass('jp-InputArea');
-      this.layout = new PanelLayout();
-    }
-
-    /**
-     * Dispose of the resources used by the tool.
-     */
-    dispose() {
-      if (this._model === null) {
-        return;
-      }
-      this._model.dispose();
-      this._model = null!;
-      super.dispose();
-    }
-
-    /**
-     * Handle a change to the active cell.
-     */
-    protected onActiveCellChanged(): void {
-      const activeCell = this.notebookTools.activeCell;
-      const layout = this.layout as PanelLayout;
-      const count = layout.widgets.length;
-      for (let i = 0; i < count; i++) {
-        layout.widgets[0].dispose();
-      }
-      if (this._cellModel && !this._cellModel.isDisposed) {
-        this._cellModel.value.changed.disconnect(this._onValueChanged, this);
-        this._cellModel.mimeTypeChanged.disconnect(
-          this._onMimeTypeChanged,
-          this
-        );
-      }
-      if (!activeCell) {
-        const cell = new Widget();
-        cell.addClass('jp-InputArea-editor');
-        cell.addClass('jp-InputArea-editor');
-        layout.addWidget(cell);
-        this._cellModel = null;
-        return;
-      }
-      const promptNode = activeCell.promptNode
-        ? (activeCell.promptNode.cloneNode(true) as HTMLElement)
-        : undefined;
-      const prompt = new Widget({ node: promptNode });
-      const factory = activeCell.contentFactory.editorFactory;
-
-      const cellModel = (this._cellModel = activeCell.model);
-      cellModel.value.changed.connect(this._onValueChanged, this);
-      cellModel.mimeTypeChanged.connect(this._onMimeTypeChanged, this);
-      this._model.value.text = cellModel.value.text.split('\n')[0];
-      this._model.mimeType = cellModel.mimeType;
-
-      const model = this._model;
-      const editorWidget = new CodeEditorWrapper({ model, factory });
-      editorWidget.addClass('jp-InputArea-editor');
-      editorWidget.addClass('jp-InputArea-editor');
-      editorWidget.editor.setOption('readOnly', true);
-      layout.addWidget(prompt);
-      layout.addWidget(editorWidget);
-    }
-
-    /**
-     * Handle a change to the notebook panel.
-     *
-     * #### Notes
-     * The default implementation is a no-op.
-     */
-    protected onActiveNotebookPanelChanged(msg: Message): void {
-      if (!this.notebookTools.activeNotebookPanel) {
-        // Force cleaning up the signal
-        void this.onActiveCellChanged();
-      }
-    }
-
-    /**
-     * Handle a change to the current editor value.
-     */
-    private _onValueChanged(): void {
-      this._model.value.text = this._cellModel!.value.text.split('\n')[0];
-    }
-
-    /**
-     * Handle a change to the current editor mimetype.
-     */
-    private _onMimeTypeChanged(): void {
-      this._model.mimeType = this._cellModel!.mimeType;
-    }
-
-    private _model = new CodeEditor.Model();
-    private _cellModel: CodeEditor.IModel | null;
-  }
-
   /**
    * A raw metadata editor.
    */
@@ -603,368 +582,6 @@ export namespace NotebookTools {
       translator?: ITranslator;
     }
   }
-
-  /**
-   * A notebook metadata editor
-   */
-  export class NotebookMetadataEditorTool extends MetadataEditorTool {
-    constructor(options: MetadataEditorTool.IOptions) {
-      const translator = options.translator || nullTranslator;
-      const trans = translator.load('jupyterlab');
-      options.label = options.label || trans.__('Notebook Metadata');
-      super(options);
-    }
-
-    /**
-     * Handle a change to the notebook.
-     */
-    protected onActiveNotebookPanelChanged(msg: Message): void {
-      super.onActiveNotebookPanelChanged(msg);
-      if (this.notebookTools.activeNotebookPanel) {
-        this._update();
-      }
-    }
-
-    /**
-     * Handle a change to the notebook metadata.
-     */
-    protected onActiveNotebookPanelMetadataChanged(msg: Message): void {
-      this._update();
-    }
-
-    private _update() {
-      const nb =
-        this.notebookTools.activeNotebookPanel &&
-        this.notebookTools.activeNotebookPanel.content;
-      this.editor.source = nb?.model?.metadata ?? null;
-    }
-  }
-
-  /**
-   * A cell metadata editor
-   */
-  export class CellMetadataEditorTool extends MetadataEditorTool {
-    constructor(options: MetadataEditorTool.IOptions) {
-      const translator = options.translator || nullTranslator;
-      const trans = translator.load('jupyterlab');
-      options.label = options.label || trans.__('Cell Metadata');
-      super(options);
-    }
-
-    /**
-     * Handle a change to the active cell.
-     */
-    protected onActiveCellChanged(msg: Message): void {
-      this.editor.dispose();
-      if (this.notebookTools.activeCell) {
-        this.createEditor();
-        this._update();
-      }
-    }
-
-    /**
-     * Handle a change to the active cell metadata.
-     */
-    protected onActiveCellMetadataChanged(msg: Message): void {
-      this._update();
-    }
-
-    private _update() {
-      const cell = this.notebookTools.activeCell;
-      this.editor.source = cell ? cell.model.metadata : null;
-    }
-  }
-
-  /**
-   * A cell tool that provides a selection for a given metadata key.
-   */
-  export class KeySelector extends Tool {
-    /**
-     * Construct a new KeySelector.
-     */
-    constructor(options: KeySelector.IOptions) {
-      // TODO: use react
-      super({ node: Private.createSelectorNode(options) });
-      this.addClass('jp-KeySelector');
-      this.key = options.key;
-      this._default = options.default;
-      this._validCellTypes = options.validCellTypes || [];
-      this._getter = options.getter || this._getValue;
-      this._setter = options.setter || this._setValue;
-    }
-
-    /**
-     * The metadata key used by the selector.
-     */
-    readonly key: string;
-
-    /**
-     * The select node for the widget.
-     */
-    get selectNode(): HTMLSelectElement {
-      return this.node.getElementsByTagName('select')[0] as HTMLSelectElement;
-    }
-
-    /**
-     * Handle the DOM events for the widget.
-     *
-     * @param event - The DOM event sent to the widget.
-     *
-     * #### Notes
-     * This method implements the DOM `EventListener` interface and is
-     * called in response to events on the notebook panel's node. It should
-     * not be called directly by user code.
-     */
-    handleEvent(event: Event): void {
-      switch (event.type) {
-        case 'change':
-          this.onValueChanged();
-          break;
-        default:
-          break;
-      }
-    }
-
-    /**
-     * Handle `after-attach` messages for the widget.
-     */
-    protected onAfterAttach(msg: Message): void {
-      const node = this.selectNode;
-      node.addEventListener('change', this);
-    }
-
-    /**
-     * Handle `before-detach` messages for the widget.
-     */
-    protected onBeforeDetach(msg: Message): void {
-      const node = this.selectNode;
-      node.removeEventListener('change', this);
-    }
-
-    /**
-     * Handle a change to the active cell.
-     */
-    protected onActiveCellChanged(msg: Message): void {
-      const select = this.selectNode;
-      const activeCell = this.notebookTools.activeCell;
-      if (!activeCell) {
-        select.disabled = true;
-        select.value = '';
-        return;
-      }
-      const cellType = activeCell.model.type;
-      if (
-        this._validCellTypes.length &&
-        this._validCellTypes.indexOf(cellType) === -1
-      ) {
-        select.value = '';
-        select.disabled = true;
-        return;
-      }
-      select.disabled = false;
-      this._changeGuard = true;
-      const getter = this._getter;
-      select.value = JSON.stringify(getter(activeCell));
-      this._changeGuard = false;
-    }
-
-    /**
-     * Handle a change to the metadata of the active cell.
-     */
-    protected onActiveCellMetadataChanged(msg: ObservableJSON.ChangeMessage) {
-      if (this._changeGuard) {
-        return;
-      }
-      const select = this.selectNode;
-      const cell = this.notebookTools.activeCell;
-      if (msg.args.key === this.key && cell) {
-        this._changeGuard = true;
-        const getter = this._getter;
-        select.value = JSON.stringify(getter(cell));
-        this._changeGuard = false;
-      }
-    }
-
-    /**
-     * Handle a change to the value.
-     */
-    protected onValueChanged(): void {
-      const activeCell = this.notebookTools.activeCell;
-      if (!activeCell || this._changeGuard) {
-        return;
-      }
-      this._changeGuard = true;
-      const select = this.selectNode;
-      const setter = this._setter;
-      setter(activeCell, JSON.parse(select.value));
-      this._changeGuard = false;
-    }
-
-    /**
-     * Get the value for the data.
-     */
-    private _getValue = (cell: Cell) => {
-      let value = cell.model.metadata.get(this.key);
-      if (value === undefined) {
-        value = this._default;
-      }
-      return value;
-    };
-
-    /**
-     * Set the value for the data.
-     */
-    private _setValue = (
-      cell: Cell,
-      value: ReadonlyPartialJSONValue | undefined
-    ) => {
-      if (value === this._default) {
-        cell.model.metadata.delete(this.key);
-      } else {
-        cell.model.metadata.set(this.key, value);
-      }
-    };
-
-    private _changeGuard = false;
-    private _validCellTypes: string[];
-    private _getter: (cell: Cell) => ReadonlyPartialJSONValue | undefined;
-    private _setter: (
-      cell: Cell,
-      value: ReadonlyPartialJSONValue | undefined
-    ) => void;
-    private _default: ReadonlyPartialJSONValue | undefined;
-  }
-
-  /**
-   * The namespace for `KeySelector` static data.
-   */
-  export namespace KeySelector {
-    /**
-     * The options used to initialize a keyselector.
-     */
-    export interface IOptions {
-      /**
-       * The metadata key of interest.
-       */
-      key: string;
-
-      /**
-       * The map of values to options.
-       *
-       * Value corresponds to the unique identifier.
-       * Option corresponds to the localizable value to display.
-       *
-       * See: `<option value="volvo">Volvo</option>`
-       *
-       * #### Notes
-       * If a value equals the default, choosing it may erase the key from the
-       * metadata.
-       */
-      optionValueArray: ReadonlyPartialJSONOptionValueArray;
-
-      /**
-       * The optional title of the selector - defaults to capitalized `key`.
-       */
-      title: string;
-
-      /**
-       * The optional valid cell types - defaults to all valid types.
-       */
-      validCellTypes?: nbformat.CellType[];
-
-      /**
-       * An optional value getter for the selector.
-       *
-       * @param cell - The currently active cell.
-       *
-       * @returns The appropriate value for the selector.
-       */
-      getter?: (cell: Cell) => ReadonlyPartialJSONValue | undefined;
-
-      /**
-       * An optional value setter for the selector.
-       *
-       * @param cell - The currently active cell.
-       *
-       * @param value - The value of the selector.
-       *
-       * #### Notes
-       * The setter should set the appropriate metadata value given the value of
-       * the selector.
-       */
-      setter?: (
-        cell: Cell,
-        value: ReadonlyPartialJSONValue | undefined
-      ) => void;
-
-      /**
-       * Default value for default setters and getters if value is not found.
-       */
-      default?: ReadonlyPartialJSONValue;
-    }
-  }
-
-  /**
-   * Create a slideshow selector.
-   */
-  export function createSlideShowSelector(
-    translator?: ITranslator
-  ): KeySelector {
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-    trans.__('');
-    const options: KeySelector.IOptions = {
-      key: 'slideshow',
-      title: trans.__('Slide Type'),
-      optionValueArray: [
-        ['-', null],
-        [trans.__('Slide'), 'slide'],
-        [trans.__('Sub-Slide'), 'subslide'],
-        [trans.__('Fragment'), 'fragment'],
-        [trans.__('Skip'), 'skip'],
-        [trans.__('Notes'), 'notes']
-      ],
-      getter: cell => {
-        const value = cell.model.metadata.get('slideshow') as
-          | ReadonlyPartialJSONObject
-          | undefined;
-        return value && value['slide_type'];
-      },
-      setter: (cell, value) => {
-        let data = cell.model.metadata.get('slideshow') || Object.create(null);
-        if (value === null) {
-          // Make a shallow copy so we aren't modifying the original metadata.
-          data = { ...data };
-          delete data.slide_type;
-        } else {
-          data = { ...data, slide_type: value };
-        }
-        if (Object.keys(data).length > 0) {
-          cell.model.metadata.set('slideshow', data);
-        } else {
-          cell.model.metadata.delete('slideshow');
-        }
-      }
-    };
-    return new KeySelector(options);
-  }
-
-  /**
-   * Create an nbconvert selector.
-   */
-  export function createNBConvertSelector(
-    optionValueArray: ReadonlyPartialJSONOptionValueArray,
-    translator?: ITranslator
-  ): KeySelector {
-    translator = translator || nullTranslator;
-    const trans = translator.load('jupyterlab');
-    return new KeySelector({
-      key: 'raw_mimetype',
-      title: trans.__('Raw NBConvert Format'),
-      optionValueArray: optionValueArray,
-      validCellTypes: ['raw']
-    });
-  }
 }
 
 /**
@@ -992,27 +609,4 @@ namespace Private {
   export function itemCmp(first: IRankItem, second: IRankItem): number {
     return first.rank - second.rank;
   }
-
-  /**
-   * Create the node for a KeySelector.
-   */
-  export function createSelectorNode(
-    options: NotebookTools.KeySelector.IOptions
-  ): HTMLElement {
-    const name = options.key;
-    const title = options.title || name[0].toLocaleUpperCase() + name.slice(1);
-    const optionNodes: VirtualNode[] = [];
-    let value: any;
-    let option: any;
-    each(options.optionValueArray, item => {
-      option = item[0];
-      value = JSON.stringify(item[1]);
-      optionNodes.push(h.option({ value }, option));
-    });
-    const node = VirtualDOM.realize(
-      h.div({}, h.label(title, h.select({}, optionNodes)))
-    );
-    Styling.styleNode(node);
-    return node;
-  }
 }
diff --git a/packages/notebook/src/panel.ts b/packages/notebook/src/panel.ts
index e1f70352f42a..9b0b3cbbd9ec 100644
--- a/packages/notebook/src/panel.ts
+++ b/packages/notebook/src/panel.ts
@@ -16,10 +16,10 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
-import { each } from '@lumino/algorithm';
 import { Token } from '@lumino/coreutils';
 import { INotebookModel } from './model';
 import { Notebook, StaticNotebook } from './widget';
+import { Message } from '@lumino/messaging';
 
 /**
  * The class name added to notebook panels.
@@ -30,11 +30,6 @@ const NOTEBOOK_PANEL_TOOLBAR_CLASS = 'jp-NotebookPanel-toolbar';
 
 const NOTEBOOK_PANEL_NOTEBOOK_CLASS = 'jp-NotebookPanel-notebook';
 
-/**
- * The class name to add when the document is loaded for the search box.
- */
-const SEARCH_DOCUMENT_LOADED_CLASS = 'jp-DocumentSearch-document-loaded';
-
 /**
  * A widget that hosts a notebook toolbar and content area.
  *
@@ -66,7 +61,7 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
       this._onSessionStatusChanged,
       this
     );
-    this.content.fullyRendered.connect(this._onFullyRendered, this);
+    // this.content.fullyRendered.connect(this._onFullyRendered, this);
     this.context.saveState.connect(this._onSave, this);
     void this.revealed.then(() => {
       if (this.isDisposed) {
@@ -77,29 +72,37 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
       // Set the document edit mode on initial open if it looks like a new document.
       if (this.content.widgets.length === 1) {
         const cellModel = this.content.widgets[0].model;
-        if (cellModel.type === 'code' && cellModel.value.text === '') {
+        if (
+          cellModel.type === 'code' &&
+          cellModel.sharedModel.getSource() === ''
+        ) {
           this.content.mode = 'edit';
         }
       }
     });
   }
 
-  _onSave(
+  /**
+   * Handle a change to the document registry save state.
+   *
+   * @param sender The document registry context
+   * @param state The document registry save state
+   */
+  private _onSave(
     sender: DocumentRegistry.Context,
     state: DocumentRegistry.SaveState
   ): void {
     if (state === 'started' && this.model) {
       // Find markdown cells
-      const { cells } = this.model;
-      each(cells, cell => {
+      for (const cell of this.model.cells) {
         if (isMarkdownCellModel(cell)) {
           for (const key of cell.attachments.keys) {
-            if (!cell.value.text.includes(key)) {
+            if (!cell.sharedModel.getSource().includes(key)) {
               cell.attachments.remove(key);
             }
           }
         }
-      });
+      }
     }
   }
 
@@ -129,16 +132,17 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
     const kernelPreference = this.context.sessionContext.kernelPreference;
     this.context.sessionContext.kernelPreference = {
       ...kernelPreference,
-      shutdownOnDispose: config.kernelShutdown
+      shutdownOnDispose: config.kernelShutdown,
+      autoStartDefault: config.autoStartDefault
     };
   }
 
   /**
    * Set URI fragment identifier.
    */
-  setFragment(fragment: string) {
+  setFragment(fragment: string): void {
     void this.context.ready.then(() => {
-      this.content.setFragment(fragment);
+      void this.content.setFragment(fragment);
     });
   }
 
@@ -154,7 +158,7 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
    * Prints the notebook by converting to HTML with nbconvert.
    */
   [Printing.symbol]() {
-    return async () => {
+    return async (): Promise<void> => {
       // Save before generating HTML
       if (this.context.model.dirty && !this.context.model.readOnly) {
         await this.context.save();
@@ -171,12 +175,23 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
   }
 
   /**
-   * Handle a fully rendered signal notebook.
+   * A message handler invoked on a 'before-hide' message.
    */
-  private _onFullyRendered(notebook: Notebook, fullyRendered: boolean): void {
-    fullyRendered
-      ? this.removeClass(SEARCH_DOCUMENT_LOADED_CLASS)
-      : this.addClass(SEARCH_DOCUMENT_LOADED_CLASS);
+  protected onBeforeHide(msg: Message): void {
+    super.onBeforeHide(msg);
+    // Inform the windowed list that the notebook is gonna be hidden
+    this.content.isParentHidden = true;
+  }
+
+  /**
+   * A message handler invoked on a 'before-show' message.
+   */
+  protected onBeforeShow(msg: Message): void {
+    // Inform the windowed list that the notebook is gonna be shown
+    // Use onBeforeShow instead of onAfterShow to take into account
+    // resizing (like sidebars got expanded before switching to the notebook tab)
+    this.content.isParentHidden = false;
+    super.onBeforeShow(msg);
   }
 
   /**
@@ -233,7 +248,7 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
    * Update the kernel language.
    */
   private _updateLanguage(language: KernelMessage.ILanguageInfo): void {
-    this.model!.metadata.set('language_info', language);
+    this.model!.setMetadata('language_info', language);
   }
 
   /**
@@ -244,7 +259,7 @@ export class NotebookPanel extends DocumentWidget<Notebook, INotebookModel> {
     if (this.isDisposed) {
       return;
     }
-    this.model!.metadata.set('kernelspec', {
+    this.model!.setMetadata('kernelspec', {
       name: kernel.name,
       display_name: spec?.display_name,
       language: spec?.language
@@ -268,6 +283,10 @@ export namespace NotebookPanel {
    * Notebook config interface for NotebookPanel
    */
   export interface IConfig {
+    /**
+     * Whether to automatically start the preferred kernel
+     */
+    autoStartDefault: boolean;
     /**
      * A config object for cell editors
      */
@@ -297,7 +316,8 @@ export namespace NotebookPanel {
    */
   export class ContentFactory
     extends Notebook.ContentFactory
-    implements IContentFactory {
+    implements IContentFactory
+  {
     /**
      * Create a new content area for the panel.
      */
@@ -306,17 +326,12 @@ export namespace NotebookPanel {
     }
   }
 
-  /**
-   * Default content factory for the notebook panel.
-   */
-  export const defaultContentFactory: ContentFactory = new ContentFactory();
-
-  /* tslint:disable */
   /**
    * The notebook renderer token.
    */
   export const IContentFactory = new Token<IContentFactory>(
-    '@jupyterlab/notebook:IContentFactory'
+    '@jupyterlab/notebook:IContentFactory',
+    `A factory object that creates new notebooks.
+    Use this if you want to create and host notebooks in your own UI elements.`
   );
-  /* tslint:enable */
 }
diff --git a/packages/notebook/src/searchprovider.ts b/packages/notebook/src/searchprovider.ts
new file mode 100644
index 000000000000..76f40843bd80
--- /dev/null
+++ b/packages/notebook/src/searchprovider.ts
@@ -0,0 +1,906 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Dialog, showDialog } from '@jupyterlab/apputils';
+import {
+  CellSearchProvider,
+  CodeCell,
+  createCellSearchProvider,
+  ICellModel,
+  MarkdownCell
+} from '@jupyterlab/cells';
+import {
+  CodeMirrorEditor,
+  IHighlightAdjacentMatchOptions
+} from '@jupyterlab/codemirror';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import { IChangedArgs } from '@jupyterlab/coreutils';
+import {
+  IFilter,
+  IFilters,
+  IReplaceOptions,
+  IReplaceOptionsSupport,
+  ISearchMatch,
+  ISearchProvider,
+  SearchProvider
+} from '@jupyterlab/documentsearch';
+import { IObservableList, IObservableMap } from '@jupyterlab/observables';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { ArrayExt } from '@lumino/algorithm';
+import { Widget } from '@lumino/widgets';
+import { CellList } from './celllist';
+import { NotebookPanel } from './panel';
+import { Notebook } from './widget';
+
+/**
+ * Notebook document search provider
+ */
+export class NotebookSearchProvider extends SearchProvider<NotebookPanel> {
+  /**
+   * Constructor
+   *
+   * @param widget The widget to search in
+   * @param translator Application translator
+   */
+  constructor(
+    widget: NotebookPanel,
+    protected translator: ITranslator = nullTranslator
+  ) {
+    super(widget);
+
+    this._handleHighlightsAfterActiveCellChange =
+      this._handleHighlightsAfterActiveCellChange.bind(this);
+    this.widget.model!.cells.changed.connect(this._onCellsChanged, this);
+    this.widget.content.activeCellChanged.connect(
+      this._onActiveCellChanged,
+      this
+    );
+    this.widget.content.selectionChanged.connect(
+      this._onCellSelectionChanged,
+      this
+    );
+    this.widget.content.stateChanged.connect(
+      this._onNotebookStateChanged,
+      this
+    );
+    this._observeActiveCell();
+    this._filtersChanged.connect(this._setEnginesSelectionSearchMode, this);
+  }
+
+  private _onNotebookStateChanged(_: Notebook, args: IChangedArgs<any>) {
+    if (args.name === 'mode') {
+      // Delay the update to ensure that `document.activeElement` settled.
+      window.setTimeout(() => {
+        if (
+          args.newValue === 'command' &&
+          document.activeElement?.closest('.jp-DocumentSearch-overlay')
+        ) {
+          // Do not request updating mode when user switched focus to search overlay.
+          return;
+        }
+        this._updateSelectionMode();
+        this._filtersChanged.emit();
+      }, 0);
+    }
+  }
+
+  /**
+   * Report whether or not this provider has the ability to search on the given object
+   *
+   * @param domain Widget to test
+   * @returns Search ability
+   */
+  static isApplicable(domain: Widget): domain is NotebookPanel {
+    // check to see if the CMSearchProvider can search on the
+    // first cell, false indicates another editor is present
+    return domain instanceof NotebookPanel;
+  }
+
+  /**
+   * Instantiate a search provider for the notebook panel.
+   *
+   * #### Notes
+   * The widget provided is always checked using `isApplicable` before calling
+   * this factory.
+   *
+   * @param widget The widget to search on
+   * @param translator [optional] The translator object
+   *
+   * @returns The search provider on the notebook panel
+   */
+  static createNew(
+    widget: NotebookPanel,
+    translator?: ITranslator
+  ): ISearchProvider {
+    return new NotebookSearchProvider(widget, translator);
+  }
+
+  /**
+   * The current index of the selected match.
+   */
+  get currentMatchIndex(): number | null {
+    let agg = 0;
+    let found = false;
+    for (let idx = 0; idx < this._searchProviders.length; idx++) {
+      const provider = this._searchProviders[idx];
+      if (this._currentProviderIndex == idx) {
+        const localMatch = provider.currentMatchIndex;
+        if (localMatch === null) {
+          return null;
+        }
+        agg += localMatch;
+        found = true;
+        break;
+      } else {
+        agg += provider.matchesCount;
+      }
+    }
+    return found ? agg : null;
+  }
+
+  /**
+   * The number of matches.
+   */
+  get matchesCount(): number | null {
+    return this._searchProviders.reduce(
+      (sum, provider) => (sum += provider.matchesCount),
+      0
+    );
+  }
+
+  /**
+   * Set to true if the widget under search is read-only, false
+   * if it is editable. Will be used to determine whether to show
+   * the replace option.
+   */
+  get isReadOnly(): boolean {
+    return this.widget?.content.model?.readOnly ?? false;
+  }
+
+  /**
+   * Support for options adjusting replacement behavior.
+   */
+  get replaceOptionsSupport(): IReplaceOptionsSupport {
+    return {
+      preserveCase: true
+    };
+  }
+
+  /**
+   * Dispose of the resources held by the search provider.
+   *
+   * #### Notes
+   * If the object's `dispose` method is called more than once, all
+   * calls made after the first will be a no-op.
+   *
+   * #### Undefined Behavior
+   * It is undefined behavior to use any functionality of the object
+   * after it has been disposed unless otherwise explicitly noted.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    this.widget.content.activeCellChanged.disconnect(
+      this._onActiveCellChanged,
+      this
+    );
+
+    this.widget.model?.cells.changed.disconnect(this._onCellsChanged, this);
+
+    this.widget.content.stateChanged.disconnect(
+      this._onNotebookStateChanged,
+      this
+    );
+    this.widget.content.selectionChanged.disconnect(
+      this._onCellSelectionChanged,
+      this
+    );
+    this._stopObservingLastCell();
+
+    super.dispose();
+
+    const index = this.widget.content.activeCellIndex;
+    this.endQuery()
+      .then(() => {
+        if (!this.widget.isDisposed) {
+          this.widget.content.activeCellIndex = index;
+        }
+      })
+      .catch(reason => {
+        console.error(`Fail to end search query in notebook:\n${reason}`);
+      });
+  }
+
+  /**
+   * Get the filters for the given provider.
+   *
+   * @returns The filters.
+   */
+  getFilters(): { [key: string]: IFilter } {
+    const trans = this.translator.load('jupyterlab');
+
+    return {
+      output: {
+        title: trans.__('Search Cell Outputs'),
+        description: trans.__('Search in the cell outputs.'),
+        default: false,
+        supportReplace: false
+      },
+      selection: {
+        title:
+          this._selectionSearchMode === 'cells'
+            ? trans._n(
+                'Search in %1 Selected Cell',
+                'Search in %1 Selected Cells',
+                this._selectedCells
+              )
+            : trans._n(
+                'Search in %1 Selected Line',
+                'Search in %1 Selected Lines',
+                this._selectedLines
+              ),
+        description: trans.__(
+          'Search only in the selected cells or text (depending on edit/command mode).'
+        ),
+        default: false,
+        supportReplace: true
+      }
+    };
+  }
+
+  /**
+   * Update the search in selection mode; it should only be called when user
+   * navigates the notebook (enters editing/command mode, changes selection)
+   * but not when the searchbox gets focused (switching the notebook to command
+   * mode) nor when search highlights a match (switching notebook to edit mode).
+   */
+  private _updateSelectionMode() {
+    if (this._selectionLock) {
+      return;
+    }
+    this._selectionSearchMode =
+      this._selectedCells === 1 &&
+      this.widget.content.mode === 'edit' &&
+      this._selectedLines !== 0
+        ? 'text'
+        : 'cells';
+  }
+
+  /**
+   * Get an initial query value if applicable so that it can be entered
+   * into the search box as an initial query
+   *
+   * @returns Initial value used to populate the search box.
+   */
+  getInitialQuery(): string {
+    const activeCell = this.widget.content.activeCell;
+    const editor = activeCell?.editor as CodeMirrorEditor | undefined;
+    if (!editor) {
+      return '';
+    }
+    const selection = editor.state.sliceDoc(
+      editor.state.selection.main.from,
+      editor.state.selection.main.to
+    );
+    return selection;
+  }
+
+  /**
+   * Clear currently highlighted match.
+   */
+  async clearHighlight(): Promise<void> {
+    this._selectionLock = true;
+    if (
+      this._currentProviderIndex !== null &&
+      this._currentProviderIndex < this._searchProviders.length
+    ) {
+      await this._searchProviders[this._currentProviderIndex].clearHighlight();
+      this._currentProviderIndex = null;
+    }
+    this._selectionLock = false;
+  }
+
+  /**
+   * Highlight the next match.
+   *
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The next match if available.
+   */
+  async highlightNext(
+    loop: boolean = true,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    const match = await this._stepNext(false, loop, options);
+    return match ?? undefined;
+  }
+
+  /**
+   * Highlight the previous match.
+   *
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns The previous match if available.
+   */
+  async highlightPrevious(
+    loop: boolean = true,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | undefined> {
+    const match = await this._stepNext(true, loop, options);
+    return match ?? undefined;
+  }
+
+  /**
+   * Search for a regular expression with optional filters.
+   *
+   * @param query A regular expression to test for
+   * @param filters Filter parameters to pass to provider
+   *
+   */
+  async startQuery(
+    query: RegExp,
+    filters: IFilters | undefined
+  ): Promise<void> {
+    if (!this.widget) {
+      return;
+    }
+    await this.endQuery();
+    let cells = this.widget.content.widgets;
+
+    this._query = query;
+    this._filters = {
+      output: false,
+      selection: false,
+      ...(filters ?? {})
+    };
+
+    this._onSelection = this._filters.selection;
+
+    const currentProviderIndex = this.widget.content.activeCellIndex;
+
+    // For each cell, create a search provider
+    this._searchProviders = await Promise.all(
+      cells.map(async (cell, index) => {
+        const cellSearchProvider = createCellSearchProvider(cell);
+
+        await cellSearchProvider.setIsActive(
+          !this._filters!.selection ||
+            this.widget.content.isSelectedOrActive(cell)
+        );
+
+        if (
+          this._onSelection &&
+          this._selectionSearchMode === 'text' &&
+          index === currentProviderIndex
+        ) {
+          if (this._textSelection) {
+            await cellSearchProvider.setSearchSelection(this._textSelection);
+          }
+        }
+
+        await cellSearchProvider.startQuery(query, this._filters);
+
+        return cellSearchProvider;
+      })
+    );
+    this._currentProviderIndex = currentProviderIndex;
+
+    // We do not want to show the first "current" closest to cursor as depending
+    // on which way the user dragged the selection it would be:
+    // - the first or last match when searching in selection
+    // - the next match when starting search using ctrl + f
+    // `scroll` and `select` are disabled because `startQuery` is also used as
+    // "restartQuery" after each text change and if those were enabled, we would
+    // steal the cursor.
+    await this.highlightNext(true, {
+      from: 'selection-start',
+      scroll: false,
+      select: false
+    });
+
+    return Promise.resolve();
+  }
+
+  /**
+   * Stop the search and clear all internal state.
+   */
+  async endQuery(): Promise<void> {
+    await Promise.all(
+      this._searchProviders.map(provider => {
+        return provider.endQuery().then(() => {
+          provider.dispose();
+        });
+      })
+    );
+
+    this._searchProviders.length = 0;
+    this._currentProviderIndex = null;
+  }
+
+  /**
+   * Replace the currently selected match with the provided text
+   *
+   * @param newText The replacement text.
+   * @param loop Whether to loop within the matches list.
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  async replaceCurrentMatch(
+    newText: string,
+    loop = true,
+    options?: IReplaceOptions
+  ): Promise<boolean> {
+    let replaceOccurred = false;
+
+    const unrenderMarkdownCell = async (
+      highlightNext = false
+    ): Promise<void> => {
+      // Unrendered markdown cell
+      const activeCell = this.widget?.content.activeCell;
+      if (
+        activeCell?.model.type === 'markdown' &&
+        (activeCell as MarkdownCell).rendered
+      ) {
+        (activeCell as MarkdownCell).rendered = false;
+        if (highlightNext) {
+          await this.highlightNext(loop);
+        }
+      }
+    };
+
+    if (this._currentProviderIndex !== null) {
+      await unrenderMarkdownCell();
+
+      const searchEngine = this._searchProviders[this._currentProviderIndex];
+      replaceOccurred = await searchEngine.replaceCurrentMatch(
+        newText,
+        false,
+        options
+      );
+      if (searchEngine.currentMatchIndex === null) {
+        // switch to next cell
+        await this.highlightNext(loop);
+      }
+    }
+
+    // TODO: markdown undrendering/highlighting sequence is likely incorrect
+    // Force highlighting the first hit in the unrendered cell
+    await unrenderMarkdownCell(true);
+    return replaceOccurred;
+  }
+
+  /**
+   * Replace all matches in the notebook with the provided text
+   *
+   * @param newText The replacement text.
+   *
+   * @returns A promise that resolves with a boolean indicating whether a replace occurred.
+   */
+  async replaceAllMatches(
+    newText: string,
+    options?: IReplaceOptions
+  ): Promise<boolean> {
+    const replacementOccurred = await Promise.all(
+      this._searchProviders.map(provider => {
+        return provider.replaceAllMatches(newText, options);
+      })
+    );
+    return replacementOccurred.includes(true);
+  }
+
+  async validateFilter(name: string, value: boolean): Promise<boolean> {
+    if (name !== 'output') {
+      // Bail early
+      return value;
+    }
+
+    // If value is true and some cells have never been rendered, ask confirmation.
+    if (
+      value &&
+      this.widget.content.widgets.some(
+        w => w instanceof CodeCell && w.isPlaceholder()
+      )
+    ) {
+      const trans = this.translator.load('jupyterlab');
+
+      const reply = await showDialog({
+        title: trans.__('Confirmation'),
+        body: trans.__(
+          'Searching outputs is expensive and requires to first rendered all outputs. Are you sure you want to search in the cell outputs?'
+        ),
+        buttons: [
+          Dialog.cancelButton({ label: trans.__('Cancel') }),
+          Dialog.okButton({ label: trans.__('Ok') })
+        ]
+      });
+      if (reply.button.accept) {
+        this.widget.content.widgets.forEach((w, i) => {
+          if (w instanceof CodeCell && w.isPlaceholder()) {
+            this.widget.content.renderCellOutputs(i);
+          }
+        });
+      } else {
+        return false;
+      }
+    }
+
+    return value;
+  }
+
+  private _addCellProvider(index: number) {
+    const cell = this.widget.content.widgets[index];
+    const cellSearchProvider = createCellSearchProvider(cell);
+
+    ArrayExt.insert(this._searchProviders, index, cellSearchProvider);
+
+    void cellSearchProvider
+      .setIsActive(
+        !(this._filters?.selection ?? false) ||
+          this.widget.content.isSelectedOrActive(cell)
+      )
+      .then(() => {
+        void cellSearchProvider.startQuery(this._query, this._filters);
+      });
+  }
+
+  private _removeCellProvider(index: number) {
+    const provider = ArrayExt.removeAt(this._searchProviders, index);
+    provider?.dispose();
+  }
+
+  private async _onCellsChanged(
+    cells: CellList,
+    changes: IObservableList.IChangedArgs<ICellModel>
+  ): Promise<void> {
+    switch (changes.type) {
+      case 'add':
+        changes.newValues.forEach((model, index) => {
+          this._addCellProvider(changes.newIndex + index);
+        });
+        break;
+      case 'move':
+        ArrayExt.move(
+          this._searchProviders,
+          changes.oldIndex,
+          changes.newIndex
+        );
+        break;
+      case 'remove':
+        for (let index = 0; index < changes.oldValues.length; index++) {
+          this._removeCellProvider(changes.oldIndex);
+        }
+        break;
+      case 'set':
+        changes.newValues.forEach((model, index) => {
+          this._addCellProvider(changes.newIndex + index);
+          this._removeCellProvider(changes.newIndex + index + 1);
+        });
+
+        break;
+    }
+    this._stateChanged.emit();
+  }
+
+  private async _stepNext(
+    reverse = false,
+    loop = false,
+    options?: IHighlightAdjacentMatchOptions
+  ): Promise<ISearchMatch | null> {
+    const activateNewMatch = async (match: ISearchMatch) => {
+      const shouldScroll = options?.scroll ?? true;
+      if (!shouldScroll) {
+        // do not activate the match if scrolling was disabled
+        return;
+      }
+
+      this._selectionLock = true;
+      if (this.widget.content.activeCellIndex !== this._currentProviderIndex!) {
+        this.widget.content.activeCellIndex = this._currentProviderIndex!;
+      }
+      if (this.widget.content.activeCellIndex === -1) {
+        console.warn('No active cell (no cells or no model), aborting search');
+        this._selectionLock = false;
+        return;
+      }
+      const activeCell = this.widget.content.activeCell!;
+
+      if (!activeCell.inViewport) {
+        try {
+          await this.widget.content.scrollToItem(this._currentProviderIndex!);
+        } catch (error) {
+          // no-op
+        }
+      }
+
+      // Unhide cell
+      if (activeCell.inputHidden) {
+        activeCell.inputHidden = false;
+      }
+
+      if (!activeCell.inViewport) {
+        this._selectionLock = false;
+        // It will not be possible the cell is not in the view
+        return;
+      }
+
+      await activeCell.ready;
+      const editor = activeCell.editor!;
+      editor.revealPosition(editor.getPositionAt(match.position)!);
+      this._selectionLock = false;
+    };
+
+    if (this._currentProviderIndex === null) {
+      this._currentProviderIndex = this.widget.content.activeCellIndex;
+    }
+
+    // When going to previous match in cell mode and there is no current we
+    // want to skip the active cell and go to the previous cell; in edit mode
+    // the appropriate behaviour is induced by searching from nearest cursor.
+    if (reverse && this.widget.content.mode === 'command') {
+      const searchEngine = this._searchProviders[this._currentProviderIndex];
+      const currentMatch = searchEngine.getCurrentMatch();
+      if (!currentMatch) {
+        this._currentProviderIndex -= 1;
+      }
+      if (loop) {
+        this._currentProviderIndex =
+          (this._currentProviderIndex + this._searchProviders.length) %
+          this._searchProviders.length;
+      }
+    }
+
+    const startIndex = this._currentProviderIndex;
+    do {
+      const searchEngine = this._searchProviders[this._currentProviderIndex];
+
+      const match = reverse
+        ? await searchEngine.highlightPrevious(false, options)
+        : await searchEngine.highlightNext(false, options);
+
+      if (match) {
+        await activateNewMatch(match);
+        return match;
+      } else {
+        this._currentProviderIndex =
+          this._currentProviderIndex + (reverse ? -1 : 1);
+
+        if (loop) {
+          this._currentProviderIndex =
+            (this._currentProviderIndex + this._searchProviders.length) %
+            this._searchProviders.length;
+        }
+      }
+    } while (
+      loop
+        ? // We looped on all cells, no hit found
+          this._currentProviderIndex !== startIndex
+        : 0 <= this._currentProviderIndex &&
+          this._currentProviderIndex < this._searchProviders.length
+    );
+
+    if (loop) {
+      // try the first provider again
+      const searchEngine = this._searchProviders[startIndex];
+      const match = reverse
+        ? await searchEngine.highlightPrevious(false, options)
+        : await searchEngine.highlightNext(false, options);
+      if (match) {
+        await activateNewMatch(match);
+        return match;
+      }
+    }
+
+    this._currentProviderIndex = null;
+    return null;
+  }
+
+  private async _onActiveCellChanged() {
+    if (this._delayedActiveCellChangeHandler !== null) {
+      // Prevent handler from running twice if active cell is changed twice
+      // within the same task of the event loop.
+      clearTimeout(this._delayedActiveCellChangeHandler);
+      this._delayedActiveCellChangeHandler = null;
+    }
+
+    if (this.widget.content.activeCellIndex !== this._currentProviderIndex) {
+      // At this time we cannot handle the change of active cell, because
+      // `activeCellChanged` is also emitted in the middle of cell selection
+      // change, and if selection is getting extended, we do not want to clear
+      // highlights just to re-apply them shortly after, which has side effects
+      // impacting the functionality and performance.
+      this._delayedActiveCellChangeHandler = setTimeout(() => {
+        this.delayedActiveCellChangeHandlerReady =
+          this._handleHighlightsAfterActiveCellChange();
+      }, 0);
+    }
+    this._observeActiveCell();
+  }
+
+  private async _handleHighlightsAfterActiveCellChange() {
+    if (this._onSelection) {
+      const previousProviderCell =
+        this._currentProviderIndex !== null &&
+        this._currentProviderIndex < this.widget.content.widgets.length
+          ? this.widget.content.widgets[this._currentProviderIndex]
+          : null;
+
+      const previousProviderInCurrentSelection =
+        previousProviderCell &&
+        this.widget.content.isSelectedOrActive(previousProviderCell);
+
+      if (!previousProviderInCurrentSelection) {
+        await this._updateCellSelection();
+        // Clear highlight from previous provider
+        await this.clearHighlight();
+        // If we are searching in all cells, we should not change the active
+        // provider when switching active cell to preserve current match;
+        // if we are searching within selected cells we should update
+        this._currentProviderIndex = this.widget.content.activeCellIndex;
+      }
+    }
+
+    await this._ensureCurrentMatch();
+  }
+
+  /**
+   * If there are results but no match is designated as current,
+   * mark a result as current and highlight it.
+   */
+  private async _ensureCurrentMatch() {
+    if (this._currentProviderIndex !== null) {
+      const searchEngine = this._searchProviders[this._currentProviderIndex];
+      if (!searchEngine) {
+        // This can happen when `startQuery()` has not finished yet.
+        return;
+      }
+      const currentMatch = searchEngine.getCurrentMatch();
+      if (!currentMatch && this.matchesCount) {
+        // Select a match as current by highlighting next (with looping) from
+        // the selection start, to prevent "current" match from jumping around.
+        await this.highlightNext(true, {
+          from: 'start',
+          scroll: false,
+          select: false
+        });
+      }
+    }
+  }
+
+  private _observeActiveCell() {
+    const editor = this.widget.content.activeCell?.editor;
+    if (!editor) {
+      return;
+    }
+    this._stopObservingLastCell();
+
+    editor.model.selections.changed.connect(this._setSelectedLines, this);
+    this._editorSelectionsObservable = editor.model.selections;
+  }
+
+  private _stopObservingLastCell() {
+    if (this._editorSelectionsObservable) {
+      this._editorSelectionsObservable.changed.disconnect(
+        this._setSelectedLines,
+        this
+      );
+    }
+  }
+
+  private _setSelectedLines() {
+    const editor = this.widget.content.activeCell?.editor;
+    if (!editor) {
+      return;
+    }
+
+    const selection = editor.getSelection();
+    const { start, end } = selection;
+
+    const newLines =
+      end.line === start.line && end.column === start.column
+        ? 0
+        : end.line - start.line + 1;
+
+    this._textSelection = selection;
+
+    if (newLines !== this._selectedLines) {
+      this._selectedLines = newLines;
+      this._updateSelectionMode();
+    }
+    this._filtersChanged.emit();
+  }
+
+  private _textSelection: CodeEditor.IRange | null = null;
+
+  /**
+   * Set whether the engines should search within selection only or full text.
+   */
+  private async _setEnginesSelectionSearchMode() {
+    let textMode: boolean;
+
+    if (!this._onSelection) {
+      // When search in selection is off we always search full text
+      textMode = false;
+    } else {
+      // When search in selection is off we either search in full cells
+      // (toggling off isActive flag on search enginges of non-selected cells)
+      // or in selected text of the active cell.
+      textMode = this._selectionSearchMode === 'text';
+    }
+
+    if (this._selectionLock) {
+      return;
+    }
+
+    // Clear old selection restrictions or if relevant, set current restrictions for active provider.
+    await Promise.all(
+      this._searchProviders.map((provider, index) => {
+        const isCurrent = this.widget.content.activeCellIndex === index;
+        provider.setProtectSelection(isCurrent && this._onSelection);
+        return provider.setSearchSelection(
+          isCurrent && textMode ? this._textSelection : null
+        );
+      })
+    );
+  }
+
+  private async _onCellSelectionChanged() {
+    if (this._delayedActiveCellChangeHandler !== null) {
+      // Avoid race condition due to `activeCellChanged` and `selectionChanged`
+      // signals firing in short sequence when selection gets extended, with
+      // handling of the former having potential to undo selection set by the latter.
+      clearTimeout(this._delayedActiveCellChangeHandler);
+      this._delayedActiveCellChangeHandler = null;
+    }
+    await this._updateCellSelection();
+    if (this._currentProviderIndex === null) {
+      // For consistency we set the first cell in selection as current provider.
+      const firstSelectedCellIndex = this.widget.content.widgets.findIndex(
+        cell => this.widget.content.isSelectedOrActive(cell)
+      );
+      this._currentProviderIndex = firstSelectedCellIndex;
+    }
+    await this._ensureCurrentMatch();
+  }
+
+  private async _updateCellSelection() {
+    const cells = this.widget.content.widgets;
+    let selectedCells = 0;
+    await Promise.all(
+      cells.map(async (cell, index) => {
+        const provider = this._searchProviders[index];
+        const isSelected = this.widget.content.isSelectedOrActive(cell);
+        if (isSelected) {
+          selectedCells += 1;
+        }
+        if (provider && this._onSelection) {
+          await provider.setIsActive(isSelected);
+        }
+      })
+    );
+
+    if (selectedCells !== this._selectedCells) {
+      this._selectedCells = selectedCells;
+      this._updateSelectionMode();
+    }
+
+    this._filtersChanged.emit();
+  }
+
+  // used for testing only
+  protected delayedActiveCellChangeHandlerReady: Promise<void>;
+  private _currentProviderIndex: number | null = null;
+  private _delayedActiveCellChangeHandler: number | null = null;
+  private _filters: IFilters | undefined;
+  private _onSelection = false;
+  private _selectedCells: number = 1;
+  private _selectedLines: number = 0;
+  private _query: RegExp | null = null;
+  private _searchProviders: CellSearchProvider[] = [];
+  private _editorSelectionsObservable: IObservableMap<
+    CodeEditor.ITextSelection[]
+  > | null = null;
+  private _selectionSearchMode: 'cells' | 'text' = 'cells';
+  private _selectionLock: boolean = false;
+}
diff --git a/packages/notebook/src/testutils.ts b/packages/notebook/src/testutils.ts
new file mode 100644
index 000000000000..8d12fbddf520
--- /dev/null
+++ b/packages/notebook/src/testutils.ts
@@ -0,0 +1,267 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Clipboard, SessionContextDialogs } from '@jupyterlab/apputils';
+import { Cell, CodeCellModel } from '@jupyterlab/cells';
+import { CodeEditorWrapper, IEditorServices } from '@jupyterlab/codeeditor';
+import {
+  CodeMirrorEditorFactory,
+  CodeMirrorMimeTypeService,
+  EditorExtensionRegistry,
+  EditorLanguageRegistry,
+  ybinding
+} from '@jupyterlab/codemirror';
+import { Context, DocumentRegistry } from '@jupyterlab/docregistry';
+import { INotebookContent } from '@jupyterlab/nbformat';
+import { RenderMimeRegistry } from '@jupyterlab/rendermime';
+import {
+  DEFAULT_OUTPUTS as TEST_OUTPUTS,
+  defaultRenderMime as testRenderMime
+} from '@jupyterlab/rendermime/lib/testutils';
+import { ServiceManager } from '@jupyterlab/services';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import { UUID } from '@lumino/coreutils';
+import * as defaultContent from './default.json';
+import { INotebookModel, NotebookModel } from './model';
+import { NotebookModelFactory } from './modelfactory';
+import { NotebookPanel } from './panel';
+import { Notebook, StaticNotebook } from './widget';
+import { NotebookWidgetFactory } from './widgetfactory';
+
+export const DEFAULT_CONTENT: INotebookContent = defaultContent;
+
+/**
+ * Create and initialize context for a notebook.
+ */
+export async function initNotebookContext(
+  options: {
+    path?: string;
+    manager?: ServiceManager.IManager;
+    startKernel?: boolean;
+  } = {}
+): Promise<Context<INotebookModel>> {
+  const factory = Private.notebookFactory;
+  const manager = options.manager || Private.getManager();
+  const path = options.path || UUID.uuid4() + '.ipynb';
+  console.debug(
+    'Initializing notebook context for',
+    path,
+    'kernel:',
+    options.startKernel
+  );
+
+  const startKernel =
+    options.startKernel === undefined ? false : options.startKernel;
+  await manager.ready;
+
+  const context = new Context({
+    sessionDialogs: new SessionContextDialogs(),
+    manager,
+    factory,
+    path,
+    kernelPreference: {
+      shouldStart: startKernel,
+      canStart: startKernel,
+      shutdownOnDispose: true,
+      name: manager.kernelspecs.specs?.default
+    }
+  });
+  await context.initialize(true);
+
+  if (startKernel) {
+    await context.sessionContext.initialize();
+    await context.sessionContext.session?.kernel?.info;
+  }
+
+  return context;
+}
+
+/**
+ * The default notebook content.
+ */
+
+export namespace NBTestUtils {
+  export const DEFAULT_OUTPUTS = TEST_OUTPUTS;
+
+  export const defaultEditorConfig = { ...StaticNotebook.defaultEditorConfig };
+
+  const editorServices: IEditorServices = (function () {
+    const languages = new EditorLanguageRegistry();
+    EditorLanguageRegistry.getDefaultLanguages()
+      .filter(lang => ['Python'].includes(lang.name))
+      .forEach(lang => {
+        languages.addLanguage(lang);
+      });
+    const extensions = new EditorExtensionRegistry();
+    EditorExtensionRegistry.getDefaultExtensions()
+      .filter(ext => ['autoClosingBrackets'].includes(ext.name))
+      .forEach(ext => {
+        extensions.addExtension(ext);
+      });
+    extensions.addExtension({
+      name: 'binding',
+      factory: ({ model }) =>
+        EditorExtensionRegistry.createImmutableExtension(
+          ybinding({ ytext: (model.sharedModel as any).ysource })
+        )
+    });
+    const factoryService = new CodeMirrorEditorFactory({
+      languages,
+      extensions
+    });
+    const mimeTypeService = new CodeMirrorMimeTypeService(languages);
+    return {
+      factoryService,
+      mimeTypeService
+    };
+  })();
+
+  export const editorFactory =
+    editorServices.factoryService.newInlineEditor.bind(
+      editorServices.factoryService
+    );
+
+  export const mimeTypeService = editorServices.mimeTypeService;
+
+  /**
+   * Get a copy of the default rendermime instance.
+   */
+  export function defaultRenderMime(): RenderMimeRegistry {
+    return testRenderMime();
+  }
+
+  export const clipboard = Clipboard.getInstance();
+
+  /**
+   * Create a base cell content factory.
+   */
+  export function createBaseCellFactory(): Cell.IContentFactory {
+    return new Cell.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a new code cell content factory.
+   */
+  export function createCodeCellFactory(): Cell.IContentFactory {
+    return new Cell.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a cell editor widget.
+   */
+  export function createCellEditor(model?: CodeCellModel): CodeEditorWrapper {
+    return new CodeEditorWrapper({
+      model: model ?? new CodeCellModel(),
+      factory: editorFactory
+    });
+  }
+
+  /**
+   * Create a default notebook content factory.
+   */
+  export function createNotebookFactory(): Notebook.IContentFactory {
+    return new Notebook.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a default notebook panel content factory.
+   */
+  export function createNotebookPanelFactory(): NotebookPanel.IContentFactory {
+    return new NotebookPanel.ContentFactory({ editorFactory });
+  }
+
+  /**
+   * Create a notebook widget.
+   */
+  export function createNotebook(): Notebook {
+    return new Notebook({
+      rendermime: defaultRenderMime(),
+      contentFactory: createNotebookFactory(),
+      mimeTypeService,
+      notebookConfig: {
+        ...StaticNotebook.defaultNotebookConfig,
+        windowingMode: 'none'
+      }
+    });
+  }
+
+  /**
+   * Create a notebook panel widget.
+   */
+  export function createNotebookPanel(
+    context: Context<INotebookModel>
+  ): NotebookPanel {
+    return new NotebookPanel({
+      content: createNotebook(),
+      context
+    });
+  }
+
+  /**
+   * Populate a notebook with default content.
+   */
+  export function populateNotebook(notebook: Notebook): void {
+    const model = new NotebookModel();
+    model.fromJSON(DEFAULT_CONTENT);
+    notebook.model = model;
+  }
+
+  export function createNotebookWidgetFactory(
+    toolbarFactory?: (widget: NotebookPanel) => DocumentRegistry.IToolbarItem[]
+  ): NotebookWidgetFactory {
+    return new NotebookWidgetFactory({
+      name: 'notebook',
+      fileTypes: ['notebook'],
+      rendermime: defaultRenderMime(),
+      toolbarFactory,
+      contentFactory: createNotebookPanelFactory(),
+      mimeTypeService: mimeTypeService,
+      editorConfig: defaultEditorConfig
+    });
+  }
+
+  /**
+   * Create a context for a file.
+   */
+  export async function createMockContext(
+    startKernel = false
+  ): Promise<Context<INotebookModel>> {
+    const path = UUID.uuid4() + '.txt';
+    const manager = new ServiceManagerMock();
+    const factory = new NotebookModelFactory({});
+
+    const context = new Context({
+      sessionDialogs: new SessionContextDialogs(),
+      manager,
+      factory,
+      path,
+      kernelPreference: {
+        shouldStart: startKernel,
+        canStart: startKernel,
+        autoStartDefault: startKernel
+      }
+    });
+    await context.initialize(true);
+    await context.sessionContext.initialize();
+    return context;
+  }
+}
+
+/**
+ * A namespace for private data.
+ */
+namespace Private {
+  let manager: ServiceManager;
+
+  export const notebookFactory = new NotebookModelFactory();
+
+  /**
+   * Get or create the service manager singleton.
+   */
+  export function getManager(): ServiceManager {
+    if (!manager) {
+      manager = new ServiceManager({ standby: 'never' });
+    }
+    return manager;
+  }
+}
diff --git a/packages/notebook/src/toc.ts b/packages/notebook/src/toc.ts
new file mode 100644
index 000000000000..2cffe1642273
--- /dev/null
+++ b/packages/notebook/src/toc.ts
@@ -0,0 +1,702 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Cell, CodeCell, ICellModel, MarkdownCell } from '@jupyterlab/cells';
+import { IMarkdownParser, IRenderMime } from '@jupyterlab/rendermime';
+import {
+  TableOfContents,
+  TableOfContentsFactory,
+  TableOfContentsModel,
+  TableOfContentsUtils
+} from '@jupyterlab/toc';
+import { NotebookActions } from './actions';
+import { NotebookPanel } from './panel';
+import { INotebookTracker } from './tokens';
+import { Notebook } from './widget';
+
+/**
+ * Cell running status
+ */
+export enum RunningStatus {
+  /**
+   * Cell is idle
+   */
+  Idle = -1,
+  /**
+   * Cell execution is scheduled
+   */
+  Scheduled = 0,
+  /**
+   * Cell is running
+   */
+  Running = 1
+}
+
+/**
+ * Interface describing a notebook cell heading.
+ */
+export interface INotebookHeading extends TableOfContents.IHeading {
+  /**
+   * Reference to a notebook cell.
+   */
+  cellRef: Cell;
+
+  /**
+   * Running status of the cells in the heading
+   */
+  isRunning: RunningStatus;
+
+  /**
+   * Index of the output containing the heading
+   */
+  outputIndex?: number;
+
+  /**
+   * Type of heading
+   */
+  type: Cell.HeadingType;
+}
+
+/**
+ * Table of content model for Notebook files.
+ */
+export class NotebookToCModel extends TableOfContentsModel<
+  INotebookHeading,
+  NotebookPanel
+> {
+  /**
+   * Constructor
+   *
+   * @param widget The widget to search in
+   * @param parser Markdown parser
+   * @param sanitizer Sanitizer
+   * @param configuration Default model configuration
+   */
+  constructor(
+    widget: NotebookPanel,
+    protected parser: IMarkdownParser | null,
+    protected sanitizer: IRenderMime.ISanitizer,
+    configuration?: TableOfContents.IConfig
+  ) {
+    super(widget, configuration);
+    this._runningCells = new Array<Cell>();
+    this._cellToHeadingIndex = new WeakMap<Cell, number>();
+
+    void widget.context.ready.then(() => {
+      // Load configuration from metadata
+      this.setConfiguration({});
+    });
+
+    this.widget.context.model.metadataChanged.connect(
+      this.onMetadataChanged,
+      this
+    );
+    this.widget.content.activeCellChanged.connect(
+      this.onActiveCellChanged,
+      this
+    );
+    NotebookActions.executionScheduled.connect(this.onExecutionScheduled, this);
+    NotebookActions.executed.connect(this.onExecuted, this);
+    this.headingsChanged.connect(this.onHeadingsChanged, this);
+  }
+
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  get documentType(): string {
+    return 'notebook';
+  }
+
+  /**
+   * Whether the model gets updated even if the table of contents panel
+   * is hidden or not.
+   */
+  protected get isAlwaysActive(): boolean {
+    return true;
+  }
+
+  /**
+   * List of configuration options supported by the model.
+   */
+  get supportedOptions(): (keyof TableOfContents.IConfig)[] {
+    return [
+      'baseNumbering',
+      'maximalDepth',
+      'numberingH1',
+      'numberHeaders',
+      'includeOutput',
+      'syncCollapseState'
+    ];
+  }
+
+  /**
+   * Get the headings of a given cell.
+   *
+   * @param cell Cell
+   * @returns The associated headings
+   */
+  getCellHeadings(cell: Cell): INotebookHeading[] {
+    const headings = new Array<INotebookHeading>();
+    let headingIndex = this._cellToHeadingIndex.get(cell);
+
+    if (headingIndex !== undefined) {
+      const candidate = this.headings[headingIndex];
+      headings.push(candidate);
+      while (
+        this.headings[headingIndex - 1] &&
+        this.headings[headingIndex - 1].cellRef === candidate.cellRef
+      ) {
+        headingIndex--;
+        headings.unshift(this.headings[headingIndex]);
+      }
+    }
+
+    return headings;
+  }
+
+  /**
+   * Dispose the object
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    this.headingsChanged.disconnect(this.onHeadingsChanged, this);
+    this.widget.context?.model?.metadataChanged.disconnect(
+      this.onMetadataChanged,
+      this
+    );
+    this.widget.content?.activeCellChanged.disconnect(
+      this.onActiveCellChanged,
+      this
+    );
+    NotebookActions.executionScheduled.disconnect(
+      this.onExecutionScheduled,
+      this
+    );
+    NotebookActions.executed.disconnect(this.onExecuted, this);
+
+    this._runningCells.length = 0;
+
+    super.dispose();
+  }
+
+  /**
+   * Model configuration setter.
+   *
+   * @param c New configuration
+   */
+  setConfiguration(c: Partial<TableOfContents.IConfig>): void {
+    // Ensure configuration update
+    const metadataConfig = this.loadConfigurationFromMetadata();
+    super.setConfiguration({ ...this.configuration, ...metadataConfig, ...c });
+  }
+
+  /**
+   * Callback on heading collapse.
+   *
+   * @param options.heading The heading to change state (all headings if not provided)
+   * @param options.collapsed The new collapsed status (toggle existing status if not provided)
+   */
+  toggleCollapse(options: {
+    heading?: INotebookHeading;
+    collapsed?: boolean;
+  }): void {
+    super.toggleCollapse(options);
+    this.updateRunningStatus(this.headings);
+  }
+
+  /**
+   * Produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected getHeadings(): Promise<INotebookHeading[] | null> {
+    const cells = this.widget.content.widgets;
+    const headings: INotebookHeading[] = [];
+    const documentLevels = new Array<number>();
+
+    // Generate headings by iterating through all notebook cells...
+    for (let i = 0; i < cells.length; i++) {
+      const cell: Cell = cells[i];
+      const model = cell.model;
+
+      switch (model.type) {
+        case 'code': {
+          // Collapsing cells is incompatible with output headings
+          if (
+            !this.configuration.syncCollapseState &&
+            this.configuration.includeOutput
+          ) {
+            headings.push(
+              ...TableOfContentsUtils.filterHeadings(
+                cell.headings,
+                this.configuration,
+                documentLevels
+              ).map(heading => {
+                return {
+                  ...heading,
+                  cellRef: cell,
+                  collapsed: false,
+                  isRunning: RunningStatus.Idle
+                };
+              })
+            );
+          }
+
+          break;
+        }
+        case 'markdown': {
+          const cellHeadings = TableOfContentsUtils.filterHeadings(
+            cell.headings,
+            this.configuration,
+            documentLevels
+          ).map((heading, index) => {
+            return {
+              ...heading,
+              cellRef: cell,
+              collapsed: false,
+              isRunning: RunningStatus.Idle
+            };
+          });
+          // If there are multiple headings, only collapse the highest heading (i.e. minimal level)
+          // consistent with the cell.headingInfo
+          if (
+            this.configuration.syncCollapseState &&
+            (cell as MarkdownCell).headingCollapsed
+          ) {
+            const minLevel = Math.min(...cellHeadings.map(h => h.level));
+            const minHeading = cellHeadings.find(h => h.level === minLevel);
+            minHeading!.collapsed = (cell as MarkdownCell).headingCollapsed;
+          }
+          headings.push(...cellHeadings);
+          break;
+        }
+      }
+
+      if (headings.length > 0) {
+        this._cellToHeadingIndex.set(cell, headings.length - 1);
+      }
+    }
+    this.updateRunningStatus(headings);
+    return Promise.resolve(headings);
+  }
+
+  /**
+   * Read table of content configuration from notebook metadata.
+   *
+   * @returns ToC configuration from metadata
+   */
+  protected loadConfigurationFromMetadata(): Partial<TableOfContents.IConfig> {
+    const nbModel = this.widget.content.model;
+    const newConfig: Partial<TableOfContents.IConfig> = {};
+
+    if (nbModel) {
+      for (const option in this.configMetadataMap) {
+        const keys = this.configMetadataMap[option];
+        for (const k of keys) {
+          let key = k;
+          const negate = key[0] === '!';
+          if (negate) {
+            key = key.slice(1);
+          }
+
+          const keyPath = key.split('/');
+          let value = nbModel.getMetadata(keyPath[0]);
+          for (let p = 1; p < keyPath.length; p++) {
+            value = (value ?? {})[keyPath[p]];
+          }
+
+          if (value !== undefined) {
+            if (typeof value === 'boolean' && negate) {
+              value = !value;
+            }
+            newConfig[option] = value;
+          }
+        }
+      }
+    }
+    return newConfig;
+  }
+
+  protected onActiveCellChanged(
+    notebook: Notebook,
+    cell: Cell<ICellModel>
+  ): void {
+    // Highlight the first title as active (if multiple titles are in the same cell)
+    const activeHeading = this.getCellHeadings(cell)[0];
+    this.setActiveHeading(activeHeading ?? null, false);
+  }
+
+  protected onHeadingsChanged(): void {
+    if (this.widget.content.activeCell) {
+      this.onActiveCellChanged(
+        this.widget.content,
+        this.widget.content.activeCell
+      );
+    }
+  }
+
+  protected onExecuted(
+    _: unknown,
+    args: { notebook: Notebook; cell: Cell }
+  ): void {
+    this._runningCells.forEach((cell, index) => {
+      if (cell === args.cell) {
+        this._runningCells.splice(index, 1);
+
+        const headingIndex = this._cellToHeadingIndex.get(cell);
+        if (headingIndex !== undefined) {
+          const heading = this.headings[headingIndex];
+          heading.isRunning = RunningStatus.Idle;
+        }
+      }
+    });
+
+    this.updateRunningStatus(this.headings);
+    this.stateChanged.emit();
+  }
+
+  protected onExecutionScheduled(
+    _: unknown,
+    args: { notebook: Notebook; cell: Cell }
+  ): void {
+    if (!this._runningCells.includes(args.cell)) {
+      this._runningCells.push(args.cell);
+    }
+
+    this.updateRunningStatus(this.headings);
+    this.stateChanged.emit();
+  }
+
+  protected onMetadataChanged(): void {
+    this.setConfiguration({});
+  }
+
+  protected updateRunningStatus(headings: INotebookHeading[]): void {
+    // Update isRunning
+    this._runningCells.forEach((cell, index) => {
+      const headingIndex = this._cellToHeadingIndex.get(cell);
+      if (headingIndex !== undefined) {
+        const heading = this.headings[headingIndex];
+        heading.isRunning = Math.max(
+          index > 0 ? RunningStatus.Scheduled : RunningStatus.Running,
+          heading.isRunning
+        );
+      }
+    });
+
+    let globalIndex = 0;
+    while (globalIndex < headings.length) {
+      const heading = headings[globalIndex];
+      globalIndex++;
+      if (heading.collapsed) {
+        const maxIsRunning = Math.max(
+          heading.isRunning,
+          getMaxIsRunning(headings, heading.level)
+        );
+        heading.dataset = {
+          ...heading.dataset,
+          'data-running': maxIsRunning.toString()
+        };
+      } else {
+        heading.dataset = {
+          ...heading.dataset,
+          'data-running': heading.isRunning.toString()
+        };
+      }
+    }
+
+    function getMaxIsRunning(
+      headings: INotebookHeading[],
+      collapsedLevel: number
+    ): RunningStatus {
+      let maxIsRunning = RunningStatus.Idle;
+
+      while (globalIndex < headings.length) {
+        const heading = headings[globalIndex];
+        heading.dataset = {
+          ...heading.dataset,
+          'data-running': heading.isRunning.toString()
+        };
+
+        if (heading.level > collapsedLevel) {
+          globalIndex++;
+          maxIsRunning = Math.max(heading.isRunning, maxIsRunning);
+          if (heading.collapsed) {
+            maxIsRunning = Math.max(
+              maxIsRunning,
+              getMaxIsRunning(headings, heading.level)
+            );
+            heading.dataset = {
+              ...heading.dataset,
+              'data-running': maxIsRunning.toString()
+            };
+          }
+        } else {
+          break;
+        }
+      }
+
+      return maxIsRunning;
+    }
+  }
+
+  /**
+   * Mapping between configuration options and notebook metadata.
+   *
+   * If it starts with `!`, the boolean value of the configuration option is
+   * opposite to the one stored in metadata.
+   * If it contains `/`, the metadata data is nested.
+   */
+  protected configMetadataMap: {
+    [k: keyof TableOfContents.IConfig]: string[];
+  } = {
+    numberHeaders: ['toc-autonumbering', 'toc/number_sections'],
+    numberingH1: ['!toc/skip_h1_title'],
+    baseNumbering: ['toc/base_numbering']
+  };
+
+  private _runningCells: Cell[];
+  private _cellToHeadingIndex: WeakMap<Cell, number>;
+}
+
+/**
+ * Table of content model factory for Notebook files.
+ */
+export class NotebookToCFactory extends TableOfContentsFactory<NotebookPanel> {
+  /**
+   * Constructor
+   *
+   * @param tracker Widget tracker
+   * @param parser Markdown parser
+   * @param sanitizer Sanitizer
+   */
+  constructor(
+    tracker: INotebookTracker,
+    protected parser: IMarkdownParser | null,
+    protected sanitizer: IRenderMime.ISanitizer
+  ) {
+    super(tracker);
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  protected _createNew(
+    widget: NotebookPanel,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContentsModel<TableOfContents.IHeading, NotebookPanel> {
+    const model = new NotebookToCModel(
+      widget,
+      this.parser,
+      this.sanitizer,
+      configuration
+    );
+
+    // Connect model signals to notebook panel
+
+    let headingToElement = new WeakMap<INotebookHeading, Element | null>();
+
+    const onActiveHeadingChanged = (
+      model: NotebookToCModel,
+      heading: INotebookHeading | null
+    ) => {
+      if (heading) {
+        const onCellInViewport = async (cell: Cell): Promise<void> => {
+          if (!cell.inViewport) {
+            // Bail early
+            return;
+          }
+
+          const el = headingToElement.get(heading);
+
+          if (el) {
+            const widgetBox = widget.content.node.getBoundingClientRect();
+            const elementBox = el.getBoundingClientRect();
+
+            if (
+              elementBox.top > widgetBox.bottom ||
+              elementBox.bottom < widgetBox.top
+            ) {
+              el.scrollIntoView({ block: 'center' });
+            }
+          } else {
+            console.debug('scrolling to heading: using fallback strategy');
+            await widget.content.scrollToItem(widget.content.activeCellIndex);
+          }
+        };
+
+        const cell = heading.cellRef;
+        const cells = widget.content.widgets;
+        const idx = cells.indexOf(cell);
+        widget.content.activeCellIndex = idx;
+
+        if (cell.inViewport) {
+          onCellInViewport(cell).catch(reason => {
+            console.error(
+              `Fail to scroll to cell to display the required heading (${reason}).`
+            );
+          });
+        } else {
+          widget.content
+            .scrollToItem(idx)
+            .then(() => {
+              return onCellInViewport(cell);
+            })
+            .catch(reason => {
+              console.error(
+                `Fail to scroll to cell to display the required heading (${reason}).`
+              );
+            });
+        }
+      }
+    };
+
+    const findHeadingElement = (cell: Cell): void => {
+      model.getCellHeadings(cell).forEach(async heading => {
+        const elementId = await getIdForHeading(heading, this.parser!);
+
+        const selector = elementId
+          ? `h${heading.level}[id="${elementId}"]`
+          : `h${heading.level}`;
+
+        if (heading.outputIndex !== undefined) {
+          // Code cell
+          headingToElement.set(
+            heading,
+            TableOfContentsUtils.addPrefix(
+              (heading.cellRef as CodeCell).outputArea.widgets[
+                heading.outputIndex
+              ].node,
+              selector,
+              heading.prefix ?? ''
+            )
+          );
+        } else {
+          headingToElement.set(
+            heading,
+            TableOfContentsUtils.addPrefix(
+              heading.cellRef.node,
+              selector,
+              heading.prefix ?? ''
+            )
+          );
+        }
+      });
+    };
+
+    const onHeadingsChanged = (model: NotebookToCModel) => {
+      if (!this.parser) {
+        return;
+      }
+      // Clear all numbering items
+      TableOfContentsUtils.clearNumbering(widget.content.node);
+
+      // Create a new mapping
+      headingToElement = new WeakMap<INotebookHeading, Element | null>();
+
+      widget.content.widgets.forEach(cell => {
+        findHeadingElement(cell);
+      });
+    };
+
+    const onHeadingCollapsed = (
+      _: NotebookToCModel,
+      heading: INotebookHeading | null
+    ) => {
+      if (model.configuration.syncCollapseState) {
+        if (heading !== null) {
+          const cell = heading.cellRef as MarkdownCell;
+          if (cell.headingCollapsed !== (heading.collapsed ?? false)) {
+            cell.headingCollapsed = heading.collapsed ?? false;
+          }
+        } else {
+          const collapseState = model.headings[0]?.collapsed ?? false;
+          widget.content.widgets.forEach(cell => {
+            if (cell instanceof MarkdownCell) {
+              if (cell.headingInfo.level >= 0) {
+                cell.headingCollapsed = collapseState;
+              }
+            }
+          });
+        }
+      }
+    };
+    const onCellCollapsed = (_: unknown, cell: MarkdownCell) => {
+      if (model.configuration.syncCollapseState) {
+        const h = model.getCellHeadings(cell)[0];
+        if (h) {
+          model.toggleCollapse({
+            heading: h,
+            collapsed: cell.headingCollapsed
+          });
+        }
+      }
+    };
+
+    const onCellInViewportChanged = (_: unknown, cell: Cell) => {
+      if (cell.inViewport) {
+        findHeadingElement(cell);
+      } else {
+        // Needed to remove prefix in cell outputs
+        TableOfContentsUtils.clearNumbering(cell.node);
+      }
+    };
+
+    void widget.context.ready.then(() => {
+      onHeadingsChanged(model);
+
+      model.activeHeadingChanged.connect(onActiveHeadingChanged);
+      model.headingsChanged.connect(onHeadingsChanged);
+      model.collapseChanged.connect(onHeadingCollapsed);
+      widget.content.cellCollapsed.connect(onCellCollapsed);
+      widget.content.cellInViewportChanged.connect(onCellInViewportChanged);
+      widget.disposed.connect(() => {
+        model.activeHeadingChanged.disconnect(onActiveHeadingChanged);
+        model.headingsChanged.disconnect(onHeadingsChanged);
+        model.collapseChanged.disconnect(onHeadingCollapsed);
+        widget.content.cellCollapsed.disconnect(onCellCollapsed);
+        widget.content.cellInViewportChanged.disconnect(
+          onCellInViewportChanged
+        );
+      });
+    });
+
+    return model;
+  }
+}
+
+/**
+ * Get the element id for an heading
+ * @param heading Heading
+ * @param parser The markdownparser
+ * @returns The element id
+ */
+export async function getIdForHeading(
+  heading: INotebookHeading,
+  parser: IRenderMime.IMarkdownParser
+) {
+  let elementId: string | null = null;
+  if (heading.type === Cell.HeadingType.Markdown) {
+    elementId = await TableOfContentsUtils.Markdown.getHeadingId(
+      parser,
+      // Type from TableOfContentsUtils.Markdown.IMarkdownHeading
+      (heading as any).raw,
+      heading.level
+    );
+  } else if (heading.type === Cell.HeadingType.HTML) {
+    // Type from TableOfContentsUtils.IHTMLHeading
+    elementId = (heading as any).id;
+  }
+  return elementId;
+}
diff --git a/packages/notebook/src/tokens.ts b/packages/notebook/src/tokens.ts
index e4e35a4507a6..eff982ba420a 100644
--- a/packages/notebook/src/tokens.ts
+++ b/packages/notebook/src/tokens.ts
@@ -10,23 +10,22 @@ import { NotebookTools } from './notebooktools';
 import { NotebookPanel } from './panel';
 import { NotebookWidgetFactory } from './widgetfactory';
 
-/* tslint:disable */
 /**
  * The notebook widget factory token.
  */
 export const INotebookWidgetFactory = new Token<NotebookWidgetFactory.IFactory>(
-  '@jupyterlab/notebook:INotebookWidgetFactory'
+  '@jupyterlab/notebook:INotebookWidgetFactory',
+  'A service to create the notebook viewer.'
 );
-/* tslint:enable */
 
-/* tslint:disable */
 /**
  * The notebook tools token.
  */
 export const INotebookTools = new Token<INotebookTools>(
-  '@jupyterlab/notebook:INotebookTools'
+  '@jupyterlab/notebook:INotebookTools',
+  `A service for the "Notebook Tools" panel in the
+  right sidebar. Use this to add your own functionality to the panel.`
 );
-/* tslint:enable */
 
 /**
  * The interface for notebook metadata tools.
@@ -36,6 +35,7 @@ export interface INotebookTools extends Widget {
   activeCell: Cell | null;
   selectedCells: Cell[];
   addItem(options: NotebookTools.IAddOptions): void;
+  addSection(options: NotebookTools.IAddSectionOptions): void;
 }
 
 /**
@@ -54,7 +54,7 @@ export namespace INotebookTools {
     /**
      * The section to which the tool should be added.
      */
-    section?: 'common' | 'advanced';
+    section: 'advanced' | string;
 
     /**
      * The rank order of the widget among its siblings.
@@ -62,6 +62,31 @@ export namespace INotebookTools {
     rank?: number;
   }
 
+  /**
+   * The options used to add a section to the notebook tools.
+   */
+  export interface IAddSectionOptions {
+    /**
+     * The name of the new section.
+     */
+    sectionName: string;
+
+    /**
+     * The tool to add to the notebook tools area.
+     */
+    tool?: INotebookTools.ITool;
+
+    /**
+     * The label of the new section.
+     */
+    label?: string;
+
+    /**
+     * The rank order of the section among its siblings.
+     */
+    rank?: number;
+  }
+
   export interface ITool extends Widget {
     /**
      * The notebook tools object.
@@ -70,14 +95,15 @@ export namespace INotebookTools {
   }
 }
 
-/* tslint:disable */
 /**
  * The notebook tracker token.
  */
 export const INotebookTracker = new Token<INotebookTracker>(
-  '@jupyterlab/notebook:INotebookTracker'
+  '@jupyterlab/notebook:INotebookTracker',
+  `A widget tracker for notebooks.
+  Use this if you want to be able to iterate over and interact with notebooks
+  created by the application.`
 );
-/* tslint:enable */
 
 /**
  * An object that tracks notebook widgets.
diff --git a/packages/notebook/src/tracker.ts b/packages/notebook/src/tracker.ts
index e87892daa89a..26254f7706de 100644
--- a/packages/notebook/src/tracker.ts
+++ b/packages/notebook/src/tracker.ts
@@ -10,7 +10,8 @@ import { Notebook } from './widget';
 
 export class NotebookTracker
   extends WidgetTracker<NotebookPanel>
-  implements INotebookTracker {
+  implements INotebookTracker
+{
   /**
    * The currently focused cell.
    *
diff --git a/packages/notebook/src/truststatus.tsx b/packages/notebook/src/truststatus.tsx
index c6972f209053..ba761e886ace 100644
--- a/packages/notebook/src/truststatus.tsx
+++ b/packages/notebook/src/truststatus.tsx
@@ -1,48 +1,49 @@
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { Cell } from '@jupyterlab/cells';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { notTrustedIcon, trustedIcon } from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
+import {
+  notTrustedIcon,
+  trustedIcon,
+  VDomModel,
+  VDomRenderer
+} from '@jupyterlab/ui-components';
 import React from 'react';
 import { INotebookModel, Notebook } from '.';
 
+const TRUST_CLASS = 'jp-StatusItem-trust';
+
 /**
  * Determine the notebook trust status message.
  */
 function cellTrust(
   props: NotebookTrustComponent.IProps | NotebookTrustStatus.Model,
   translator?: ITranslator
-): string[] {
+): string {
   translator = translator || nullTranslator;
   const trans = translator.load('jupyterlab');
 
   if (props.trustedCells === props.totalCells) {
-    return [
-      trans.__(
-        'Notebook trusted: %1 of %2 cells trusted.',
-        props.trustedCells,
-        props.totalCells
-      ),
-      'jp-StatusItem-trusted'
-    ];
+    return trans.__(
+      'Notebook trusted: %1 of %2 code cells trusted.',
+      props.trustedCells,
+      props.totalCells
+    );
   } else if (props.activeCellTrusted) {
-    return [
-      trans.__(
-        'Active cell trusted: %1 of %2 cells trusted.',
-        props.trustedCells,
-        props.totalCells
-      ),
-      'jp-StatusItem-trusted'
-    ];
+    return trans.__(
+      'Active cell trusted: %1 of %2 code cells trusted.',
+      props.trustedCells,
+      props.totalCells
+    );
   } else {
-    return [
-      trans.__(
-        'Notebook not trusted: %1 of %2 cells trusted.',
-        props.trustedCells,
-        props.totalCells
-      ),
-      'jp-StatusItem-untrusted'
-    ];
+    return trans.__(
+      'Notebook not trusted: %1 of %2 code cells trusted.',
+      props.trustedCells,
+      props.totalCells
+    );
   }
 }
 
@@ -82,12 +83,12 @@ namespace NotebookTrustComponent {
     activeCellTrusted: boolean;
 
     /**
-     * The total number of cells for the current notebook.
+     * The total number of code cells for the current notebook.
      */
     totalCells: number;
 
     /**
-     * The number of trusted cells for the current notebook.
+     * The number of trusted code cells for the current notebook.
      */
     trustedCells: number;
   }
@@ -96,34 +97,34 @@ namespace NotebookTrustComponent {
 /**
  * The NotebookTrust status item.
  */
-export class NotebookTrustStatus extends VDomRenderer<
-  NotebookTrustStatus.Model
-> {
+export class NotebookTrustStatus extends VDomRenderer<NotebookTrustStatus.Model> {
   /**
    * Construct a new status item.
    */
   constructor(translator?: ITranslator) {
     super(new NotebookTrustStatus.Model());
     this.translator = translator || nullTranslator;
+    this.node.classList.add(TRUST_CLASS);
   }
 
   /**
    * Render the NotebookTrust status item.
    */
-  render() {
+  render(): JSX.Element | null {
     if (!this.model) {
       return null;
     }
-    this.node.title = cellTrust(this.model, this.translator)[0];
+    const newTitle = cellTrust(this.model, this.translator);
+    if (newTitle !== this.node.title) {
+      this.node.title = newTitle;
+    }
     return (
-      <div>
-        <NotebookTrustComponent
-          allCellsTrusted={this.model.trustedCells === this.model.totalCells}
-          activeCellTrusted={this.model.activeCellTrusted}
-          totalCells={this.model.totalCells}
-          trustedCells={this.model.trustedCells}
-        />
-      </div>
+      <NotebookTrustComponent
+        allCellsTrusted={this.model.trustedCells === this.model.totalCells}
+        activeCellTrusted={this.model.activeCellTrusted}
+        totalCells={this.model.totalCells}
+        trustedCells={this.model.trustedCells}
+      />
     );
   }
 
@@ -139,30 +140,30 @@ export namespace NotebookTrustStatus {
    */
   export class Model extends VDomModel {
     /**
-     * The number of trusted cells in the current notebook.
+     * The number of trusted code cells in the current notebook.
      */
     get trustedCells(): number {
       return this._trustedCells;
     }
 
     /**
-     * The total number of cells in the current notebook.
+     * The total number of code cells in the current notebook.
      */
-    get totalCells() {
+    get totalCells(): number {
       return this._totalCells;
     }
 
     /**
      * Whether the active cell is trusted.
      */
-    get activeCellTrusted() {
+    get activeCellTrusted(): boolean {
       return this._activeCellTrusted;
     }
 
     /**
      * The current notebook for the model.
      */
-    get notebook() {
+    get notebook(): Notebook | null {
       return this._notebook;
     }
     set notebook(model: Notebook | null) {
@@ -234,33 +235,27 @@ export namespace NotebookTrustStatus {
     }
 
     /**
-     * Given a notebook model, figure out how many of the cells are trusted.
+     * Given a notebook model, figure out how many of the code cells are trusted.
      */
-    private _deriveCellTrustState(
-      model: INotebookModel | null
-    ): {
+    private _deriveCellTrustState(model: INotebookModel | null): {
       total: number;
       trusted: number;
     } {
       if (model === null) {
         return { total: 0, trusted: 0 };
       }
-      const cells = toArray(model.cells);
-
-      const trusted = cells.reduce((accum, current) => {
-        if (current.trusted) {
-          return accum + 1;
-        } else {
-          return accum;
+      let total = 0;
+      let trusted = 0;
+      for (const cell of model.cells) {
+        if (cell.type !== 'code') {
+          continue;
         }
-      }, 0);
-
-      const total = cells.length;
-
-      return {
-        total,
-        trusted
-      };
+        total++;
+        if (cell.trusted) {
+          trusted++;
+        }
+      }
+      return { total, trusted };
     }
 
     /**
diff --git a/packages/notebook/src/widget.ts b/packages/notebook/src/widget.ts
index 72f00f8b34bc..ba24e9e2683f 100644
--- a/packages/notebook/src/widget.ts
+++ b/packages/notebook/src/widget.ts
@@ -14,20 +14,27 @@ import {
 import { CodeEditor, IEditorMimeTypeService } from '@jupyterlab/codeeditor';
 import { IChangedArgs } from '@jupyterlab/coreutils';
 import * as nbformat from '@jupyterlab/nbformat';
-import { IObservableList, IObservableMap } from '@jupyterlab/observables';
+import { IObservableList } from '@jupyterlab/observables';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
+import type { IMapChange } from '@jupyter/ydoc';
+import { TableOfContentsUtils } from '@jupyterlab/toc';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { ArrayExt, each, findIndex } from '@lumino/algorithm';
-import { MimeData, ReadonlyPartialJSONValue } from '@lumino/coreutils';
+import { WindowedList } from '@jupyterlab/ui-components';
+import { ArrayExt, findIndex } from '@lumino/algorithm';
+import { MimeData } from '@lumino/coreutils';
 import { ElementExt } from '@lumino/domutils';
-import { Drag, IDragEvent } from '@lumino/dragdrop';
+import { Drag } from '@lumino/dragdrop';
 import { Message } from '@lumino/messaging';
 import { AttachedProperty } from '@lumino/properties';
 import { ISignal, Signal } from '@lumino/signaling';
 import { h, VirtualDOM } from '@lumino/virtualdom';
 import { PanelLayout, Widget } from '@lumino/widgets';
 import { NotebookActions } from './actions';
+import { CellList } from './celllist';
+import { DROP_SOURCE_CLASS, DROP_TARGET_CLASS } from './constants';
 import { INotebookModel } from './model';
+import { NotebookViewModel, NotebookWindowedLayout } from './windowing';
+import { NotebookFooter } from './notebookfooter';
 
 /**
  * The data attribute added to a widget that has an active kernel.
@@ -44,6 +51,11 @@ const CODE_RUNNER = 'jpCodeRunner';
  */
 const UNDOER = 'jpUndoer';
 
+/**
+ * The data attribute added to a widget that can be traversed with up/down arrow and j/k shortcuts.
+ */
+const TRAVERSABLE = 'jpTraversable';
+
 /**
  * The class name added to notebook widgets.
  */
@@ -84,16 +96,6 @@ const OTHER_SELECTED_CLASS = 'jp-mod-multiSelected';
  */
 const UNCONFINED_CLASS = 'jp-mod-unconfined';
 
-/**
- * The class name added to a drop target.
- */
-const DROP_TARGET_CLASS = 'jp-mod-dropTarget';
-
-/**
- * The class name added to a drop source.
- */
-const DROP_SOURCE_CLASS = 'jp-mod-dropSource';
-
 /**
  * The class name added to drag images.
  */
@@ -129,10 +131,12 @@ const JUPYTER_CELL_MIME = 'application/vnd.jupyter.cells';
  */
 const DRAG_THRESHOLD = 5;
 
-/*
- * The type of cell insert provided via signal.
+/**
+ * Maximal remaining time for idle callback
+ *
+ * Ref: https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API#getting_the_most_out_of_idle_callbacks
  */
-type InsertType = 'push' | 'insert' | 'set';
+const MAXIMUM_TIME_REMAINING = 50;
 
 /*
  * The rendering mode for the notebook.
@@ -144,6 +148,12 @@ type RenderingLayout = 'default' | 'side-by-side';
  */
 const HEADING_COLLAPSER_CLASS = 'jp-collapseHeadingButton';
 
+/**
+ * The class that controls the visibility of "heading collapser" and "show hidden cells" buttons.
+ */
+const HEADING_COLLAPSER_VISBILITY_CONTROL_CLASS =
+  'jp-mod-showHiddenCellsButton';
+
 const SIDE_BY_SIDE_CLASS = 'jp-mod-sideBySide';
 
 /**
@@ -154,6 +164,7 @@ export type NotebookMode = 'command' | 'edit';
 if ((window as any).requestIdleCallback === undefined) {
   // On Safari, requestIdleCallback is not available, so we use replacement functions for `idleCallbacks`
   // See: https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API#falling_back_to_settimeout
+  // eslint-disable-next-line @typescript-eslint/ban-types
   (window as any).requestIdleCallback = function (handler: Function) {
     let startTime = Date.now();
     return setTimeout(function () {
@@ -180,66 +191,57 @@ if ((window as any).requestIdleCallback === undefined) {
  * `null` model, and may want to listen to the `modelChanged`
  * signal.
  */
-export class StaticNotebook extends Widget {
+export class StaticNotebook extends WindowedList {
   /**
    * Construct a notebook widget.
    */
   constructor(options: StaticNotebook.IOptions) {
-    super();
+    const cells = new Array<Cell>();
+    super({
+      model: new NotebookViewModel(cells, {
+        overscanCount:
+          options.notebookConfig?.overscanCount ??
+          StaticNotebook.defaultNotebookConfig.overscanCount,
+        windowingActive:
+          (options.notebookConfig?.windowingMode ??
+            StaticNotebook.defaultNotebookConfig.windowingMode) === 'full'
+      }),
+      layout: new NotebookWindowedLayout()
+    });
     this.addClass(NB_CLASS);
+    this.cellsArray = cells;
+
+    this._idleCallBack = null;
+
+    this._editorConfig = StaticNotebook.defaultEditorConfig;
+    this._notebookConfig = StaticNotebook.defaultNotebookConfig;
+    this._mimetype = 'text/plain';
+    this._notebookModel = null;
+    this._modelChanged = new Signal<this, void>(this);
+    this._modelContentChanged = new Signal<this, void>(this);
+
     this.node.dataset[KERNEL_USER] = 'true';
     this.node.dataset[UNDOER] = 'true';
     this.node.dataset[CODE_RUNNER] = 'true';
+    this.node.dataset[TRAVERSABLE] = 'true';
     this.rendermime = options.rendermime;
-    this.translator = options.translator ?? nullTranslator;
-    this.layout = new Private.NotebookPanelLayout();
-    this.contentFactory =
-      options.contentFactory || StaticNotebook.defaultContentFactory;
+    this.translator = options.translator || nullTranslator;
+    this.contentFactory = options.contentFactory;
     this.editorConfig =
       options.editorConfig || StaticNotebook.defaultEditorConfig;
     this.notebookConfig =
       options.notebookConfig || StaticNotebook.defaultNotebookConfig;
+    this._updateNotebookConfig();
     this._mimetypeService = options.mimeTypeService;
     this.renderingLayout = options.notebookConfig?.renderingLayout;
-
-    // Section for the virtual-notebook behavior.
-    this._idleCallBack = null;
-    this._toRenderMap = new Map<string, { index: number; cell: Cell }>();
-    if ('IntersectionObserver' in window) {
-      this._observer = new IntersectionObserver(
-        (entries, observer) => {
-          entries.forEach(o => {
-            if (o.isIntersecting) {
-              observer.unobserve(o.target);
-              const ci = this._toRenderMap.get(o.target.id);
-              if (ci) {
-                const { cell, index } = ci;
-                this._renderPlaceholderCell(cell, index);
-              }
-            }
-          });
-        },
-        {
-          root: this.node,
-          threshold: 1,
-          rootMargin: `${this.notebookConfig.observedTopMargin} 0px ${this.notebookConfig.observedBottomMargin} 0px`
-        }
-      );
-    }
   }
 
-  /**
-   * A signal emitted when the notebook is fully rendered.
-   */
-  get fullyRendered(): ISignal<this, boolean> {
-    return this._fullyRendered;
+  get cellCollapsed(): ISignal<this, Cell> {
+    return this._cellCollapsed;
   }
 
-  /**
-   * A signal emitted when the a placeholder cell is rendered.
-   */
-  get placeholderCellRendered(): ISignal<this, Cell> {
-    return this._placeholderCellRendered;
+  get cellInViewportChanged(): ISignal<this, Cell> {
+    return this._cellInViewportChanged;
   }
 
   /**
@@ -285,37 +287,22 @@ export class StaticNotebook extends Widget {
    * The model for the widget.
    */
   get model(): INotebookModel | null {
-    return this._model;
+    return this._notebookModel;
   }
   set model(newValue: INotebookModel | null) {
     newValue = newValue || null;
-    if (this._model === newValue) {
+    if (this._notebookModel === newValue) {
       return;
     }
-    const oldValue = this._model;
-    this._model = newValue;
-
-    if (oldValue && oldValue.modelDB.isCollaborative) {
-      void oldValue.modelDB.connected.then(() => {
-        oldValue!.modelDB.collaborators!.changed.disconnect(
-          this._onCollaboratorsChanged,
-          this
-        );
-      });
-    }
-    if (newValue && newValue.modelDB.isCollaborative) {
-      void newValue.modelDB.connected.then(() => {
-        newValue!.modelDB.collaborators!.changed.connect(
-          this._onCollaboratorsChanged,
-          this
-        );
-      });
-    }
-
+    const oldValue = this._notebookModel;
+    this._notebookModel = newValue;
     // Trigger private, protected, and public changes.
     this._onModelChanged(oldValue, newValue);
     this.onModelChanged(oldValue, newValue);
     this._modelChanged.emit(void 0);
+
+    // Trigger state change
+    this.viewModel.itemsList = newValue?.cells ?? null;
   }
 
   /**
@@ -329,7 +316,7 @@ export class StaticNotebook extends Widget {
    * A read-only sequence of the widgets in the notebook.
    */
   get widgets(): ReadonlyArray<Cell> {
-    return (this.layout as PanelLayout).widgets as ReadonlyArray<Cell>;
+    return this.cellsArray as ReadonlyArray<Cell>;
   }
 
   /**
@@ -375,10 +362,100 @@ export class StaticNotebook extends Widget {
     if (this.isDisposed) {
       return;
     }
-    this._model = null;
+    this._notebookModel = null;
+    (this.layout as NotebookWindowedLayout).header?.dispose();
     super.dispose();
   }
 
+  /**
+   * Move cells preserving widget view state.
+   *
+   * #### Notes
+   * This is required because at the model level a move is a deletion
+   * followed by an insertion. Hence the view state is not preserved.
+   *
+   * @param from The index of the cell to move
+   * @param to The new index of the cell
+   * @param n Number of cells to move
+   */
+  moveCell(from: number, to: number, n = 1): void {
+    if (!this.model) {
+      return;
+    }
+
+    const boundedTo = Math.min(this.model.cells.length - 1, Math.max(0, to));
+
+    if (boundedTo === from) {
+      return;
+    }
+
+    const viewModel: { [k: string]: any }[] = new Array(n);
+    for (let i = 0; i < n; i++) {
+      viewModel[i] = {};
+      const oldCell = this.widgets[from + i];
+      if (oldCell.model.type === 'markdown') {
+        for (const k of ['rendered', 'headingCollapsed']) {
+          // @ts-expect-error Cell has no index signature
+          viewModel[i][k] = oldCell[k];
+        }
+      }
+    }
+
+    this.model!.sharedModel.moveCells(from, boundedTo, n);
+
+    for (let i = 0; i < n; i++) {
+      const newCell = this.widgets[to + i];
+      const view = viewModel[i];
+      for (const state in view) {
+        // @ts-expect-error Cell has no index signature
+        newCell[state] = view[state];
+      }
+    }
+  }
+
+  /**
+   * Force rendering the cell outputs of a given cell if it is still a placeholder.
+   *
+   * #### Notes
+   * The goal of this method is to allow search on cell outputs (that is based
+   * on DOM tree introspection).
+   *
+   * @param index The cell index
+   */
+  renderCellOutputs(index: number): void {
+    const cell = this.viewModel.widgetRenderer(index) as Cell;
+    if (cell instanceof CodeCell && cell.isPlaceholder()) {
+      cell.dataset.windowedListIndex = `${index}`;
+      this.layout.insertWidget(index, cell);
+      if (this.notebookConfig.windowingMode === 'full') {
+        // We need to delay slightly the removal to let codemirror properly initialize
+        requestAnimationFrame(() => {
+          this.layout.removeWidget(cell);
+        });
+      }
+    }
+  }
+
+  /**
+   * Adds a message to the notebook as a header.
+   */
+  protected addHeader(): void {
+    const trans = this.translator.load('jupyterlab');
+    const info = new Widget();
+    info.node.textContent = trans.__(
+      'The notebook is empty. Click the + button on the toolbar to add a new cell.'
+    );
+    (this.layout as NotebookWindowedLayout).header = info;
+  }
+
+  /**
+   * Removes the header.
+   */
+  protected removeHeader(): void {
+    (this.layout as NotebookWindowedLayout).header?.dispose();
+    (this.layout as NotebookWindowedLayout).header = null;
+  }
+
   /**
    * Handle a new model.
    *
@@ -411,10 +488,7 @@ export class StaticNotebook extends Widget {
    * The default implementation updates the mimetypes of the code cells
    * when the `language_info` metadata changes.
    */
-  protected onMetadataChanged(
-    sender: IObservableMap<ReadonlyPartialJSONValue | undefined>,
-    args: IObservableMap.IChangedArgs<ReadonlyPartialJSONValue>
-  ): void {
+  protected onMetadataChanged(sender: INotebookModel, args: IMapChange): void {
     switch (args.key) {
       case 'language_info':
         this._updateMimetype();
@@ -434,21 +508,26 @@ export class StaticNotebook extends Widget {
   }
 
   /**
-   * Handle a cell being moved.
+   * Handle a cell being removed.
    *
    * The default implementation is a no-op
    */
-  protected onCellMoved(fromIndex: number, toIndex: number): void {
+  protected onCellRemoved(index: number, cell: Cell): void {
     // This is a no-op.
   }
 
   /**
-   * Handle a cell being removed.
+   * A message handler invoked on an `'update-request'` message.
    *
-   * The default implementation is a no-op
+   * #### Notes
+   * The default implementation of this handler is a no-op.
    */
-  protected onCellRemoved(index: number, cell: Cell): void {
-    // This is a no-op.
+  protected onUpdateRequest(msg: Message): void {
+    if (this.notebookConfig.windowingMode === 'defer') {
+      void this._runOnIdleTime();
+    } else {
+      super.onUpdateRequest(msg);
+    }
   }
 
   /**
@@ -458,14 +537,11 @@ export class StaticNotebook extends Widget {
     oldValue: INotebookModel | null,
     newValue: INotebookModel | null
   ): void {
-    const layout = this.layout as PanelLayout;
     if (oldValue) {
-      oldValue.cells.changed.disconnect(this._onCellsChanged, this);
-      oldValue.metadata.changed.disconnect(this.onMetadataChanged, this);
       oldValue.contentChanged.disconnect(this.onModelContentChanged, this);
-      // TODO: reuse existing cell widgets if possible. Remember to initially
-      // clear the history of each cell if we do this.
-      while (layout.widgets.length) {
+      oldValue.metadataChanged.disconnect(this.onMetadataChanged, this);
+      oldValue.cells.changed.disconnect(this._onCellsChanged, this);
+      while (this.cellsArray.length) {
         this._removeCell(0);
       }
     }
@@ -476,70 +552,94 @@ export class StaticNotebook extends Widget {
     this._updateMimetype();
     const cells = newValue.cells;
     const collab = newValue.collaborative ?? false;
-    if (!collab && !cells.length && newValue.isInitialized) {
-      cells.push(
-        newValue.contentFactory.createCell(this.notebookConfig.defaultCell, {})
-      );
+    if (!collab && !cells.length) {
+      newValue.sharedModel.insertCell(0, {
+        cell_type: this.notebookConfig.defaultCell,
+        metadata:
+          this.notebookConfig.defaultCell === 'code'
+            ? {
+                // This is an empty cell created in empty notebook, thus is trusted
+                trusted: true
+              }
+            : {}
+      });
     }
-
-    each(cells, (cell: ICellModel, i: number) => {
-      this._insertCell(i, cell, 'set');
-    });
-    cells.changed.connect(this._onCellsChanged, this);
+    let index = -1;
+    for (const cell of cells) {
+      this._insertCell(++index, cell);
+    }
+    newValue.cells.changed.connect(this._onCellsChanged, this);
+    newValue.metadataChanged.connect(this.onMetadataChanged, this);
     newValue.contentChanged.connect(this.onModelContentChanged, this);
-    newValue.metadata.changed.connect(this.onMetadataChanged, this);
   }
 
   /**
    * Handle a change cells event.
    */
-  private _onCellsChanged(
-    sender: IObservableList<ICellModel>,
+  protected _onCellsChanged(
+    sender: CellList,
     args: IObservableList.IChangedArgs<ICellModel>
-  ) {
-    let index = 0;
+  ): void {
+    this.removeHeader();
     switch (args.type) {
-      case 'add':
+      case 'add': {
+        let index = 0;
         index = args.newIndex;
-        // eslint-disable-next-line no-case-declarations
-        const insertType: InsertType = args.oldIndex == -1 ? 'push' : 'insert';
-        each(args.newValues, value => {
-          this._insertCell(index++, value, insertType);
-        });
-        break;
-      case 'move':
-        this._moveCell(args.oldIndex, args.newIndex);
+        for (const value of args.newValues) {
+          this._insertCell(index++, value);
+        }
+        this._updateDataWindowedListIndex(
+          args.newIndex,
+          this.model!.cells.length,
+          args.newValues.length
+        );
         break;
+      }
       case 'remove':
-        each(args.oldValues, value => {
+        for (let length = args.oldValues.length; length > 0; length--) {
           this._removeCell(args.oldIndex);
-        });
-        break;
-      case 'set':
-        // TODO: reuse existing widgets if possible.
-        index = args.newIndex;
-        each(args.newValues, value => {
-          // Note: this ordering (insert then remove)
-          // is important for getting the active cell
-          // index for the editable notebook correct.
-          this._insertCell(index, value, 'set');
-          this._removeCell(index + 1);
-          index++;
-        });
+        }
+        this._updateDataWindowedListIndex(
+          args.oldIndex,
+          this.model!.cells.length + args.oldValues.length,
+          -1 * args.oldValues.length
+        );
+        // Add default cell if there are no cells remaining.
+        if (!sender.length) {
+          const model = this.model;
+          // Add the cell in a new context to avoid triggering another
+          // cell changed event during the handling of this signal.
+          requestAnimationFrame(() => {
+            if (model && !model.isDisposed && !model.sharedModel.cells.length) {
+              model.sharedModel.insertCell(0, {
+                cell_type: this.notebookConfig.defaultCell,
+                metadata:
+                  this.notebookConfig.defaultCell === 'code'
+                    ? {
+                        // This is an empty cell created in empty notebook, thus is trusted
+                        trusted: true
+                      }
+                    : {}
+              });
+            }
+          });
+        }
         break;
       default:
         return;
     }
+
+    if (!this.model!.sharedModel.cells.length) {
+      this.addHeader();
+    }
+
+    this.update();
   }
 
   /**
    * Create a cell widget and insert into the notebook.
    */
-  private _insertCell(
-    index: number,
-    cell: ICellModel,
-    insertType: InsertType
-  ): void {
+  private _insertCell(index: number, cell: ICellModel): void {
     let widget: Cell;
     switch (cell.type) {
       case 'code':
@@ -548,105 +648,20 @@ export class StaticNotebook extends Widget {
         break;
       case 'markdown':
         widget = this._createMarkdownCell(cell as IMarkdownCellModel);
-        if (cell.value.text === '') {
+        if (cell.sharedModel.getSource() === '') {
           (widget as MarkdownCell).rendered = false;
         }
         break;
       default:
         widget = this._createRawCell(cell as IRawCellModel);
     }
+    widget.inViewportChanged.connect(this._onCellInViewportChanged, this);
     widget.addClass(NB_CELL_CLASS);
 
-    const layout = this.layout as PanelLayout;
-    if (
-      this._observer &&
-      insertType === 'push' &&
-      this._renderedCellsCount >=
-        this.notebookConfig.numberCellsToRenderDirectly &&
-      cell.type !== 'markdown'
-    ) {
-      // We have an observer and we are have been asked to push (not to insert).
-      // and we are above the number of cells to render directly, then
-      // we will add a placeholder and let the intersection observer or the
-      // idle browser render those placeholder cells.
-      this._toRenderMap.set(widget.model.id, { index: index, cell: widget });
-      const placeholder = this._createPlaceholderCell(
-        cell as IRawCellModel,
-        index
-      );
-      placeholder.node.id = widget.model.id;
-      layout.insertWidget(index, placeholder);
-      this.onCellInserted(index, placeholder);
-      this._fullyRendered.emit(false);
-      this._observer.observe(placeholder.node);
-    } else {
-      // We have no intersection observer, or we insert, or we are below
-      // the number of cells to render directly, so we render directly.
-      layout.insertWidget(index, widget);
-      this.onCellInserted(index, widget);
-      this._incrementRenderedCount();
-    }
-    this._scheduleCellRenderOnIdle();
-  }
+    ArrayExt.insert(this.cellsArray, index, widget);
+    this.onCellInserted(index, widget);
 
-  private _scheduleCellRenderOnIdle() {
-    if (
-      this._observer &&
-      this.notebookConfig.renderCellOnIdle &&
-      !this.isDisposed
-    ) {
-      if (!this._idleCallBack) {
-        const renderPlaceholderCells = this._renderPlaceholderCells.bind(this);
-        this._idleCallBack = (window as any).requestIdleCallback(
-          renderPlaceholderCells,
-          {
-            timeout: 3000
-          }
-        );
-      }
-    }
-  }
-
-  private _renderPlaceholderCells(deadline: any) {
-    if (this.notebookConfig.remainingTimeBeforeRescheduling > 0) {
-      const timeRemaining = deadline.timeRemaining();
-      // In case this got triggered because of timeout or when there are screen updates (https://w3c.github.io/requestidlecallback/#idle-periods),
-      // avoiding the render and rescheduling the place holder cell rendering.
-      if (
-        deadline.didTimeout ||
-        timeRemaining < this.notebookConfig.remainingTimeBeforeRescheduling
-      ) {
-        if (this._idleCallBack) {
-          (window as any).cancelIdleCallback(this._idleCallBack);
-          this._idleCallBack = null;
-        }
-        this._scheduleCellRenderOnIdle();
-      }
-    }
-
-    if (
-      this._renderedCellsCount < (this.model?.cells.length ?? 0) &&
-      this._renderedCellsCount >=
-        this.notebookConfig.numberCellsToRenderDirectly
-    ) {
-      const ci = this._toRenderMap.entries().next();
-      this._renderPlaceholderCell(ci.value[1].cell, ci.value[1].index);
-    }
-  }
-
-  private _renderPlaceholderCell(cell: Cell, index: number) {
-    // We don't have cancel mechanism for scheduled requestIdleCallback(renderPlaceholderCells),
-    // adding defensive check for layout in case tab is closed.
-    if (!this.layout) {
-      return;
-    }
-    const pl = this.layout as PanelLayout;
-    pl.removeWidgetAt(index);
-    pl.insertWidget(index, cell);
-    this._toRenderMap.delete(cell.model.id);
-    this._incrementRenderedCount();
-    this.onCellInserted(index, cell);
-    this._placeholderCellRendered.emit(cell);
+    this._scheduleCellRenderOnIdle();
   }
 
   /**
@@ -656,19 +671,25 @@ export class StaticNotebook extends Widget {
     const rendermime = this.rendermime;
     const contentFactory = this.contentFactory;
     const editorConfig = this.editorConfig.code;
-    const options = {
+    const options: CodeCell.IOptions = {
+      contentFactory,
       editorConfig,
+      inputHistoryScope: this.notebookConfig.inputHistoryScope,
+      maxNumberOutputs: this.notebookConfig.maxNumberOutputs,
       model,
+      placeholder: this._notebookConfig.windowingMode !== 'none',
       rendermime,
-      contentFactory,
-      updateEditorOnShow: false,
-      placeholder: false,
-      maxNumberOutputs: this.notebookConfig.maxNumberOutputs
+      translator: this.translator
     };
-    const cell = this.contentFactory.createCodeCell(options, this);
+    const cell = this.contentFactory.createCodeCell(options);
     cell.syncCollapse = true;
     cell.syncEditable = true;
     cell.syncScrolled = true;
+    cell.outputArea.inputRequested.connect(() => {
+      this._onInputRequested(cell).catch(reason => {
+        console.error('Failed to scroll to cell requesting input.', reason);
+      });
+    });
     return cell;
   }
 
@@ -679,50 +700,20 @@ export class StaticNotebook extends Widget {
     const rendermime = this.rendermime;
     const contentFactory = this.contentFactory;
     const editorConfig = this.editorConfig.markdown;
-    const options = {
+    const options: MarkdownCell.IOptions = {
+      contentFactory,
       editorConfig,
       model,
+      placeholder: this._notebookConfig.windowingMode !== 'none',
       rendermime,
-      contentFactory,
-      updateEditorOnShow: false,
-      placeholder: false,
-      showEditorForReadOnlyMarkdown: this._notebookConfig
-        .showEditorForReadOnlyMarkdown
+      showEditorForReadOnlyMarkdown:
+        this._notebookConfig.showEditorForReadOnlyMarkdown
     };
-    const cell = this.contentFactory.createMarkdownCell(options, this);
+    const cell = this.contentFactory.createMarkdownCell(options);
     cell.syncCollapse = true;
     cell.syncEditable = true;
     // Connect collapsed signal for each markdown cell widget
-    cell.toggleCollapsedSignal.connect(
-      (newCell: MarkdownCell, collapsed: boolean) => {
-        NotebookActions.setHeadingCollapse(newCell, collapsed, this);
-      }
-    );
-    return cell;
-  }
-
-  /**
-   * Create a placeholder cell widget from a raw cell model.
-   */
-  private _createPlaceholderCell(model: IRawCellModel, index: number): RawCell {
-    const contentFactory = this.contentFactory;
-    const editorConfig = this.editorConfig.raw;
-    const options = {
-      editorConfig,
-      model,
-      contentFactory,
-      updateEditorOnShow: false,
-      placeholder: true
-    };
-    const cell = this.contentFactory.createRawCell(options, this);
-    cell.node.innerHTML = `
-      <div class="jp-Cell-Placeholder">
-        <div class="jp-Cell-Placeholder-wrapper">
-        </div>
-      </div>`;
-    cell.inputHidden = true;
-    cell.syncCollapse = true;
-    cell.syncEditable = true;
+    cell.headingCollapsedChanged.connect(this._onCellCollapsed, this);
     return cell;
   }
 
@@ -732,35 +723,25 @@ export class StaticNotebook extends Widget {
   private _createRawCell(model: IRawCellModel): RawCell {
     const contentFactory = this.contentFactory;
     const editorConfig = this.editorConfig.raw;
-    const options = {
+    const options: RawCell.IOptions = {
       editorConfig,
       model,
       contentFactory,
-      updateEditorOnShow: false,
-      placeholder: false
+      placeholder: this._notebookConfig.windowingMode !== 'none'
     };
-    const cell = this.contentFactory.createRawCell(options, this);
+    const cell = this.contentFactory.createRawCell(options);
     cell.syncCollapse = true;
     cell.syncEditable = true;
     return cell;
   }
 
-  /**
-   * Move a cell widget.
-   */
-  private _moveCell(fromIndex: number, toIndex: number): void {
-    const layout = this.layout as PanelLayout;
-    layout.insertWidget(toIndex, layout.widgets[fromIndex]);
-    this.onCellMoved(fromIndex, toIndex);
-  }
-
   /**
    * Remove a cell widget.
    */
   private _removeCell(index: number): void {
-    const layout = this.layout as PanelLayout;
-    const widget = layout.widgets[index] as Cell;
+    const widget = this.cellsArray[index];
     widget.parent = null;
+    ArrayExt.removeAt(this.cellsArray, index);
     this.onCellRemoved(index, widget);
     widget.dispose();
   }
@@ -769,43 +750,111 @@ export class StaticNotebook extends Widget {
    * Update the mimetype of the notebook.
    */
   private _updateMimetype(): void {
-    const info = this._model?.metadata.get(
-      'language_info'
-    ) as nbformat.ILanguageInfoMetadata;
+    const info = this._notebookModel?.getMetadata('language_info');
     if (!info) {
       return;
     }
     this._mimetype = this._mimetypeService.getMimeTypeByLanguage(info);
-    each(this.widgets, widget => {
+    for (const widget of this.widgets) {
       if (widget.model.type === 'code') {
         widget.model.mimeType = this._mimetype;
       }
-    });
+    }
   }
 
   /**
-   * Handle an update to the collaborators.
+   * Callback when a cell collapsed status changes.
+   *
+   * @param cell Cell changed
+   * @param collapsed New collapsed status
    */
-  private _onCollaboratorsChanged(): void {
-    // If there are selections corresponding to non-collaborators,
-    // they are stale and should be removed.
-    for (let i = 0; i < this.widgets.length; i++) {
-      const cell = this.widgets[i];
-      for (const key of cell.model.selections.keys()) {
-        if (false === this._model?.modelDB?.collaborators?.has(key)) {
-          cell.model.selections.delete(key);
+  private _onCellCollapsed(cell: Cell, collapsed: boolean): void {
+    NotebookActions.setHeadingCollapse(cell, collapsed, this);
+    this._cellCollapsed.emit(cell);
+  }
+
+  /**
+   * Callback when a cell viewport status changes.
+   *
+   * @param cell Cell changed
+   */
+  private _onCellInViewportChanged(cell: Cell): void {
+    this._cellInViewportChanged.emit(cell);
+  }
+
+  /**
+   * Ensure to load in the DOM a cell requesting an user input
+   *
+   * @param cell Cell requesting an input
+   */
+  private async _onInputRequested(cell: Cell): Promise<void> {
+    if (!cell.inViewport) {
+      const cellIndex = this.widgets.findIndex(c => c === cell);
+      if (cellIndex >= 0) {
+        await this.scrollToItem(cellIndex);
+
+        const inputEl = cell.node.querySelector('.jp-Stdin');
+        if (inputEl) {
+          ElementExt.scrollIntoViewIfNeeded(this.node, inputEl);
+          (inputEl as HTMLElement).focus();
         }
       }
     }
   }
 
+  private _scheduleCellRenderOnIdle() {
+    if (this.notebookConfig.windowingMode !== 'none' && !this.isDisposed) {
+      if (!this._idleCallBack) {
+        this._idleCallBack = requestIdleCallback(
+          (deadline: IdleDeadline) => {
+            this._idleCallBack = null;
+
+            // In case of timeout, render for some time even if it means freezing the UI
+            // This avoids the cells to never be loaded.
+            void this._runOnIdleTime(
+              deadline.didTimeout
+                ? MAXIMUM_TIME_REMAINING
+                : deadline.timeRemaining()
+            );
+          },
+          {
+            timeout: 3000
+          }
+        );
+      }
+    }
+  }
+
+  private _updateDataWindowedListIndex(
+    start: number,
+    end: number,
+    delta: number
+  ): void {
+    for (
+      let cellIdx = 0;
+      cellIdx < this.viewportNode.childElementCount;
+      cellIdx++
+    ) {
+      const cell = this.viewportNode.children[cellIdx];
+      const globalIndex = parseInt(
+        (cell as HTMLElement).dataset.windowedListIndex!,
+        10
+      );
+      if (globalIndex >= start && globalIndex < end) {
+        (cell as HTMLElement).dataset.windowedListIndex = `${
+          globalIndex + delta
+        }`;
+      }
+    }
+  }
+
   /**
    * Update editor settings for notebook cells.
    */
   private _updateEditorConfig() {
     for (let i = 0; i < this.widgets.length; i++) {
       const cell = this.widgets[i];
-      let config: Partial<CodeEditor.IConfig> = {};
+      let config: Record<string, any> = {};
       switch (cell.model.type) {
         case 'code':
           config = this._editorConfig.code;
@@ -817,8 +866,88 @@ export class StaticNotebook extends Widget {
           config = this._editorConfig.raw;
           break;
       }
-      cell.editor.setOptions({ ...config });
-      cell.editor.refresh();
+      cell.updateEditorConfig({ ...config });
+    }
+  }
+
+  private async _runOnIdleTime(
+    remainingTime: number = MAXIMUM_TIME_REMAINING
+  ): Promise<void> {
+    const startTime = Date.now();
+    let cellIdx = 0;
+    while (
+      Date.now() - startTime < remainingTime &&
+      cellIdx < this.cellsArray.length
+    ) {
+      const cell = this.cellsArray[cellIdx];
+      if (cell.isPlaceholder()) {
+        switch (this.notebookConfig.windowingMode) {
+          case 'defer':
+            await this._updateForDeferMode(cell, cellIdx);
+            break;
+          case 'full':
+            this._renderCSSAndJSOutputs(cell, cellIdx);
+            break;
+        }
+      }
+      cellIdx++;
+    }
+
+    // If the notebook is not fully rendered
+    if (cellIdx < this.cellsArray.length) {
+      // If we are defering the cell rendering and the rendered cells do
+      // not fill the viewport yet
+      if (
+        this.notebookConfig.windowingMode === 'defer' &&
+        this.viewportNode.clientHeight < this.node.clientHeight
+      ) {
+        // Spend more time rendering cells to fill the viewport
+        await this._runOnIdleTime();
+      } else {
+        this._scheduleCellRenderOnIdle();
+      }
+    } else {
+      if (this._idleCallBack) {
+        window.cancelIdleCallback(this._idleCallBack);
+        this._idleCallBack = null;
+      }
+    }
+  }
+
+  private async _updateForDeferMode(
+    cell: Cell<ICellModel>,
+    cellIdx: number
+  ): Promise<void> {
+    cell.dataset.windowedListIndex = `${cellIdx}`;
+    this.layout.insertWidget(cellIdx, cell);
+    await cell.ready;
+  }
+
+  private _renderCSSAndJSOutputs(
+    cell: Cell<ICellModel>,
+    cellIdx: number
+  ): void {
+    // Only render cell with text/html outputs containing scripts or/and styles
+    // Note:
+    //   We don't need to render JavaScript mimetype outputs because they get
+    //   directly evaluate without adding DOM elements (see @jupyterlab/javascript-extension)
+    if (cell instanceof CodeCell) {
+      for (
+        let outputIdx = 0;
+        outputIdx < (cell.model.outputs?.length ?? 0);
+        outputIdx++
+      ) {
+        const output = cell.model.outputs.get(outputIdx);
+        const html = (output.data['text/html'] as string) ?? '';
+        if (
+          html.match(
+            /(<style[^>]*>[^<]*<\/style[^>]*>|<script[^>]*>.*?<\/script[^>]*>)/gims
+          )
+        ) {
+          this.renderCellOutputs(cellIdx);
+          break;
+        }
+      }
     }
   }
 
@@ -831,43 +960,39 @@ export class StaticNotebook extends Widget {
       'jp-mod-scrollPastEnd',
       this._notebookConfig.scrollPastEnd
     );
-
+    // Control visibility of heading collapser UI
+    this.toggleClass(
+      HEADING_COLLAPSER_VISBILITY_CONTROL_CLASS,
+      this._notebookConfig.showHiddenCellsButton
+    );
     // Control editor visibility for read-only Markdown cells
-    const showEditorForReadOnlyMarkdown = this._notebookConfig
-      .showEditorForReadOnlyMarkdown;
+    const showEditorForReadOnlyMarkdown =
+      this._notebookConfig.showEditorForReadOnlyMarkdown;
     if (showEditorForReadOnlyMarkdown !== undefined) {
-      for (const cell of this.widgets) {
+      for (const cell of this.cellsArray) {
         if (cell.model.type === 'markdown') {
-          (cell as MarkdownCell).showEditorForReadOnly = showEditorForReadOnlyMarkdown;
+          (cell as MarkdownCell).showEditorForReadOnly =
+            showEditorForReadOnlyMarkdown;
         }
       }
     }
-  }
 
-  private _incrementRenderedCount() {
-    if (this._toRenderMap.size === 0) {
-      this._fullyRendered.emit(true);
-    }
-    this._renderedCellsCount++;
+    this.viewModel.windowingActive =
+      this._notebookConfig.windowingMode === 'full';
   }
 
-  public get remainingCellToRenderCount(): number {
-    return this._toRenderMap.size;
-  }
+  protected cellsArray: Array<Cell>;
 
-  private _editorConfig = StaticNotebook.defaultEditorConfig;
-  private _notebookConfig = StaticNotebook.defaultNotebookConfig;
-  private _mimetype = 'text/plain';
-  private _model: INotebookModel | null = null;
+  private _cellCollapsed = new Signal<this, Cell>(this);
+  private _cellInViewportChanged = new Signal<this, Cell>(this);
+  private _editorConfig: StaticNotebook.IEditorConfig;
+  private _idleCallBack: number | null;
+  private _mimetype: string;
   private _mimetypeService: IEditorMimeTypeService;
-  private _modelChanged = new Signal<this, void>(this);
-  private _modelContentChanged = new Signal<this, void>(this);
-  private _fullyRendered = new Signal<this, boolean>(this);
-  private _placeholderCellRendered = new Signal<this, Cell>(this);
-  private _observer: IntersectionObserver;
-  private _renderedCellsCount = 0;
-  private _toRenderMap: Map<string, { index: number; cell: Cell }>;
-  private _idleCallBack: any;
+  private _modelChanged: Signal<this, void>;
+  private _modelContentChanged: Signal<this, void>;
+  private _notebookConfig: StaticNotebook.INotebookConfig;
+  private _notebookModel: INotebookModel | null;
   private _renderingLayout: RenderingLayout | undefined;
   private _renderingLayoutChanged = new Signal<this, RenderingLayout>(this);
 }
@@ -893,7 +1018,7 @@ export namespace StaticNotebook {
     /**
      * A factory for creating content.
      */
-    contentFactory?: IContentFactory;
+    contentFactory: IContentFactory;
 
     /**
      * A configuration object for the cell editor settings.
@@ -928,23 +1053,17 @@ export namespace StaticNotebook {
     /**
      * Create a new code cell widget.
      */
-    createCodeCell(
-      options: CodeCell.IOptions,
-      parent: StaticNotebook
-    ): CodeCell;
+    createCodeCell(options: CodeCell.IOptions): CodeCell;
 
     /**
      * Create a new markdown cell widget.
      */
-    createMarkdownCell(
-      options: MarkdownCell.IOptions,
-      parent: StaticNotebook
-    ): MarkdownCell;
+    createMarkdownCell(options: MarkdownCell.IOptions): MarkdownCell;
 
     /**
      * Create a new raw cell widget.
      */
-    createRawCell(options: RawCell.IOptions, parent: StaticNotebook): RawCell;
+    createRawCell(options: RawCell.IOptions): RawCell;
   }
 
   /**
@@ -954,15 +1073,15 @@ export namespace StaticNotebook {
     /**
      * Config options for code cells.
      */
-    readonly code: Partial<CodeEditor.IConfig>;
+    readonly code: Record<string, any>;
     /**
      * Config options for markdown cells.
      */
-    readonly markdown: Partial<CodeEditor.IConfig>;
+    readonly markdown: Record<string, any>;
     /**
      * Config options for raw cells.
      */
-    readonly raw: Partial<CodeEditor.IConfig>;
+    readonly raw: Record<string, any>;
   }
 
   /**
@@ -970,22 +1089,19 @@ export namespace StaticNotebook {
    */
   export const defaultEditorConfig: IEditorConfig = {
     code: {
-      ...CodeEditor.defaultConfig,
-      lineWrap: 'off',
-      matchBrackets: true,
-      autoClosingBrackets: false
+      lineNumbers: false,
+      lineWrap: false,
+      matchBrackets: true
     },
     markdown: {
-      ...CodeEditor.defaultConfig,
-      lineWrap: 'on',
-      matchBrackets: false,
-      autoClosingBrackets: false
+      lineNumbers: false,
+      lineWrap: true,
+      matchBrackets: false
     },
     raw: {
-      ...CodeEditor.defaultConfig,
-      lineWrap: 'on',
-      matchBrackets: false,
-      autoClosingBrackets: false
+      lineNumbers: false,
+      lineWrap: true,
+      matchBrackets: false
     }
   };
 
@@ -993,72 +1109,62 @@ export namespace StaticNotebook {
    * A config object for the notebook widget
    */
   export interface INotebookConfig {
-    /**
-     * Enable scrolling past the last cell
-     */
-    scrollPastEnd: boolean;
-
     /**
      * The default type for new notebook cells.
      */
     defaultCell: nbformat.CellType;
 
     /**
-     * Should timing be recorded in metadata
-     */
-    recordTiming: boolean;
-
-    /*
-     * Remaining time in milliseconds before
-     * virtual notebook rendering is rescheduled.
+     * Defines if the document can be undo/redo.
      */
-    numberCellsToRenderDirectly: number;
+    disableDocumentWideUndoRedo: boolean;
 
-    /*
-     * Number of cells to render directly when virtual
-     * notebook intersection observer is available.
+    /**
+     * Defines the maximum number of outputs per cell.
      */
-    remainingTimeBeforeRescheduling: number;
+    maxNumberOutputs: number;
 
     /**
-     * Defines if the placeholder cells should be rendered
-     * when the browser is idle.
+     * Whether to split stdin line history by kernel session or keep globally accessible.
      */
-    renderCellOnIdle: boolean;
+    inputHistoryScope: 'global' | 'session';
 
     /**
-     * Defines the observed top margin for the
-     * virtual notebook, set a positive number of pixels
-     * to render cells below the visible view.
+     * Number of cells to render in addition to those
+     * visible in the viewport.
+     *
+     * ### Notes
+     * In 'full' windowing mode, this is the number of cells above and below the
+     * viewport.
+     * In 'defer' windowing mode, this is the number of cells to render initially
+     * in addition to the one of the viewport.
      */
-    observedTopMargin: string;
+    overscanCount: number;
 
     /**
-     * Defines the observed bottom margin for the
-     * virtual notebook, set a positive number of pixels
-     * to render cells below the visible view.
+     * Should timing be recorded in metadata
      */
-    observedBottomMargin: string;
+    recordTiming: boolean;
 
     /**
-     * Defines the maximum number of outputs per cell.
+     * Defines the rendering layout to use.
      */
-    maxNumberOutputs: number;
+    renderingLayout: RenderingLayout;
 
     /**
-     * Should an editor be shown for read-only markdown
+     * Enable scrolling past the last cell
      */
-    showEditorForReadOnlyMarkdown?: boolean;
+    scrollPastEnd: boolean;
 
     /**
-     * Defines if the document can be undo/redo.
+     * Show hidden cells button if collapsed
      */
-    disableDocumentWideUndoRedo: boolean;
+    showHiddenCellsButton: boolean;
 
     /**
-     * Defines the rendering layout to use.
+     * Should an editor be shown for read-only markdown
      */
-    renderingLayout: RenderingLayout;
+    showEditorForReadOnlyMarkdown?: boolean;
 
     /**
      * Override the side-by-side left margin.
@@ -1074,27 +1180,35 @@ export namespace StaticNotebook {
      * Side-by-side output ratio.
      */
     sideBySideOutputRatio: number;
+
+    /**
+     * Windowing mode
+     *
+     * - 'defer': Wait for idle CPU cycles to attach out of viewport cells
+     * - 'full': Attach to the DOM only cells in viewport
+     * - 'none': Attach all cells to the viewport
+     */
+    windowingMode: 'defer' | 'full' | 'none';
   }
 
   /**
    * Default configuration options for notebooks.
    */
   export const defaultNotebookConfig: INotebookConfig = {
+    showHiddenCellsButton: true,
     scrollPastEnd: true,
     defaultCell: 'code',
     recordTiming: false,
-    numberCellsToRenderDirectly: 99999,
-    remainingTimeBeforeRescheduling: 50,
-    renderCellOnIdle: true,
-    observedTopMargin: '1000px',
-    observedBottomMargin: '1000px',
+    inputHistoryScope: 'global',
     maxNumberOutputs: 50,
     showEditorForReadOnlyMarkdown: true,
     disableDocumentWideUndoRedo: true,
     renderingLayout: 'default',
     sideBySideLeftMarginOverride: '10px',
     sideBySideRightMarginOverride: '10px',
-    sideBySideOutputRatio: 1
+    sideBySideOutputRatio: 1,
+    overscanCount: 1,
+    windowingMode: 'full'
   };
 
   /**
@@ -1102,7 +1216,8 @@ export namespace StaticNotebook {
    */
   export class ContentFactory
     extends Cell.ContentFactory
-    implements IContentFactory {
+    implements IContentFactory
+  {
     /**
      * Create a new code cell widget.
      *
@@ -1110,13 +1225,7 @@ export namespace StaticNotebook {
      * If no cell content factory is passed in with the options, the one on the
      * notebook content factory is used.
      */
-    createCodeCell(
-      options: CodeCell.IOptions,
-      parent: StaticNotebook
-    ): CodeCell {
-      if (!options.contentFactory) {
-        options.contentFactory = this;
-      }
+    createCodeCell(options: CodeCell.IOptions): CodeCell {
       return new CodeCell(options).initializeState();
     }
 
@@ -1127,13 +1236,7 @@ export namespace StaticNotebook {
      * If no cell content factory is passed in with the options, the one on the
      * notebook content factory is used.
      */
-    createMarkdownCell(
-      options: MarkdownCell.IOptions,
-      parent: StaticNotebook
-    ): MarkdownCell {
-      if (!options.contentFactory) {
-        options.contentFactory = this;
-      }
+    createMarkdownCell(options: MarkdownCell.IOptions): MarkdownCell {
       return new MarkdownCell(options).initializeState();
     }
 
@@ -1144,10 +1247,7 @@ export namespace StaticNotebook {
      * If no cell content factory is passed in with the options, the one on the
      * notebook content factory is used.
      */
-    createRawCell(options: RawCell.IOptions, parent: StaticNotebook): RawCell {
-      if (!options.contentFactory) {
-        options.contentFactory = this;
-      }
+    createRawCell(options: RawCell.IOptions): RawCell {
       return new RawCell(options).initializeState();
     }
   }
@@ -1161,11 +1261,6 @@ export namespace StaticNotebook {
      */
     export interface IOptions extends Cell.ContentFactory.IOptions {}
   }
-
-  /**
-   * Default content factory for the static notebook widget.
-   */
-  export const defaultContentFactory: IContentFactory = new ContentFactory();
 }
 
 /**
@@ -1176,10 +1271,47 @@ export class Notebook extends StaticNotebook {
    * Construct a notebook widget.
    */
   constructor(options: Notebook.IOptions) {
-    super(Private.processNotebookOptions(options));
+    super(options);
     this.node.tabIndex = 0; // Allow the widget to take focus.
     // Allow the node to scroll while dragging items.
     this.node.setAttribute('data-lm-dragscroll', 'true');
+    this.activeCellChanged.connect(this._updateSelectedCells, this);
+    this.selectionChanged.connect(this._updateSelectedCells, this);
+    this.addFooter();
+  }
+
+  /**
+   * List of selected and active cells
+   */
+  get selectedCells(): Cell[] {
+    return this._selectedCells;
+  }
+
+  /**
+   * Adds a footer to the notebook.
+   */
+  protected addFooter(): void {
+    const info = new NotebookFooter(this);
+    (this.layout as NotebookWindowedLayout).footer = info;
+  }
+
+  /**
+   * Handle a change cells event.
+   */
+  protected _onCellsChanged(
+    sender: CellList,
+    args: IObservableList.IChangedArgs<ICellModel>
+  ): void {
+    const activeCellId = this.activeCell?.model.id;
+    super._onCellsChanged(sender, args);
+    if (activeCellId) {
+      const newActiveCellIndex = this.model?.sharedModel.cells.findIndex(
+        cell => cell.getId() === activeCellId
+      );
+      if (newActiveCellIndex != null) {
+        this.activeCellIndex = newActiveCellIndex;
+      }
+    }
   }
 
   /**
@@ -1189,7 +1321,7 @@ export class Notebook extends StaticNotebook {
    * This can be due to the active index changing or the
    * cell at the active index changing.
    */
-  get activeCellChanged(): ISignal<this, Cell> {
+  get activeCellChanged(): ISignal<this, Cell | null> {
     return this._activeCellChanged;
   }
 
@@ -1229,9 +1361,9 @@ export class Notebook extends StaticNotebook {
 
     if (newValue === 'edit') {
       // Edit mode deselects all cells.
-      each(this.widgets, widget => {
+      for (const widget of this.widgets) {
         this.deselect(widget);
-      });
+      }
       //  Edit mode unrenders an active markdown widget.
       if (activeCell instanceof MarkdownCell) {
         activeCell.rendered = false;
@@ -1255,25 +1387,30 @@ export class Notebook extends StaticNotebook {
     if (!this.model) {
       return -1;
     }
-    return this.model.cells.length ? this._activeCellIndex : -1;
+    return this.widgets.length ? this._activeCellIndex : -1;
   }
   set activeCellIndex(newValue: number) {
     const oldValue = this._activeCellIndex;
-    if (!this.model || !this.model.cells.length) {
+    if (!this.model || !this.widgets.length) {
       newValue = -1;
     } else {
       newValue = Math.max(newValue, 0);
-      newValue = Math.min(newValue, this.model.cells.length - 1);
+      newValue = Math.min(newValue, this.widgets.length - 1);
     }
 
     this._activeCellIndex = newValue;
-    const cell = this.widgets[newValue];
-    if (cell !== this._activeCell) {
+    const cell = this.widgets[newValue] ?? null;
+    const cellChanged = cell !== this._activeCell;
+    if (cellChanged) {
       // Post an update request.
       this.update();
       this._activeCell = cell;
+    }
+
+    if (cellChanged || newValue != oldValue) {
       this._activeCellChanged.emit(cell);
     }
+
     if (this.mode === 'edit' && cell instanceof MarkdownCell) {
       cell.rendered = false;
     }
@@ -1313,6 +1450,47 @@ export class Notebook extends StaticNotebook {
     super.dispose();
   }
 
+  /**
+   * Move cells preserving widget view state.
+   *
+   * #### Notes
+   * This is required because at the model level a move is a deletion
+   * followed by an insertion. Hence the view state is not preserved.
+   *
+   * @param from The index of the cell to move
+   * @param to The new index of the cell
+   * @param n Number of cells to move
+   */
+  moveCell(from: number, to: number, n = 1): void {
+    // Save active cell id to be restored
+    const newActiveCellIndex =
+      from <= this.activeCellIndex && this.activeCellIndex < from + n
+        ? this.activeCellIndex + to - from - (from > to ? 0 : n - 1)
+        : -1;
+    const isSelected = this.widgets
+      .slice(from, from + n)
+      .map(w => this.isSelected(w));
+
+    super.moveCell(from, to, n);
+
+    if (newActiveCellIndex >= 0) {
+      this.activeCellIndex = newActiveCellIndex;
+    }
+    if (from > to) {
+      isSelected.forEach((selected, idx) => {
+        if (selected) {
+          this.select(this.widgets[to + idx]);
+        }
+      });
+    } else {
+      isSelected.forEach((selected, idx) => {
+        if (selected) {
+          this.select(this.widgets[to - n + 1 + idx]);
+        }
+      });
+    }
+  }
+
   /**
    * Select a cell widget.
    *
@@ -1367,12 +1545,12 @@ export class Notebook extends StaticNotebook {
    */
   deselectAll(): void {
     let changed = false;
-    each(this.widgets, widget => {
+    for (const widget of this.widgets) {
       if (Private.selectedProperty.get(widget)) {
         changed = true;
       }
       Private.selectedProperty.set(widget, false);
-    });
+    }
     if (changed) {
       this._selectionChanged.emit(void 0);
     }
@@ -1525,54 +1703,104 @@ export class Notebook extends StaticNotebook {
     }
   }
 
-  /**
-   * Scroll so that the given position is centered.
-   *
-   * @param position - The vertical position in the notebook widget.
-   *
-   * @param threshold - An optional threshold for the scroll (0-50, defaults to
-   * 25).
-   *
-   * #### Notes
-   * If the position is within the threshold percentage of the widget height,
-   * measured from the center of the widget, the scroll position will not be
-   * changed. A threshold of 0 means we will always scroll so the position is
-   * centered, and a threshold of 50 means scrolling only happens if position is
-   * outside the current window.
-   */
-  scrollToPosition(position: number, threshold = 25): void {
-    const node = this.node;
-    const ar = node.getBoundingClientRect();
-    const delta = position - ar.top - ar.height / 2;
-    if (Math.abs(delta) > (ar.height * threshold) / 100) {
-      node.scrollTop += delta;
-    }
-  }
-
   /**
    * Scroll so that the given cell is in view. Selects and activates cell.
    *
    * @param cell - A cell in the notebook widget.
+   * @param align - Type of alignment.
    *
    */
-  scrollToCell(cell: Cell): void {
-    // use Phosphor to scroll
-    ElementExt.scrollIntoViewIfNeeded(this.node, cell.node);
+  async scrollToCell(
+    cell: Cell,
+    align: WindowedList.ScrollToAlign = 'auto'
+  ): Promise<void> {
+    try {
+      await this.scrollToItem(
+        this.widgets.findIndex(c => c === cell),
+        align
+      );
+    } catch (r) {
+      //no-op
+    }
     // change selection and active cell:
     this.deselectAll();
     this.select(cell);
     cell.activate();
   }
 
+  private _parseFragment(fragment: string): Private.IFragmentData | undefined {
+    const cleanedFragment = fragment.slice(1);
+
+    if (!cleanedFragment) {
+      // Bail early
+      return;
+    }
+
+    const parts = cleanedFragment.split('=');
+    if (parts.length === 1) {
+      // Default to heading if no prefix is given.
+      return {
+        kind: 'heading',
+        value: cleanedFragment
+      };
+    }
+    return {
+      kind: parts[0] as any,
+      value: parts.slice(1).join('=')
+    };
+  }
+
   /**
    * Set URI fragment identifier.
    */
-  setFragment(fragment: string): void {
-    // Wait all cells are rendered then set fragment and update.
-    void Promise.all(this.widgets.map(widget => widget.ready)).then(() => {
-      this._fragment = fragment;
-      this.update();
-    });
+  async setFragment(fragment: string): Promise<void> {
+    const parsedFragment = this._parseFragment(fragment);
+
+    if (!parsedFragment) {
+      // Bail early
+      return;
+    }
+
+    let result;
+
+    switch (parsedFragment.kind) {
+      case 'heading':
+        result = await this._findHeading(parsedFragment.value);
+        break;
+      case 'cell-id':
+        result = this._findCellById(parsedFragment.value);
+        break;
+      default:
+        console.warn(
+          `Unknown target type for URI fragment ${fragment}, interpreting as a heading`
+        );
+        result = await this._findHeading(
+          parsedFragment.kind + '=' + parsedFragment.value
+        );
+        break;
+    }
+
+    if (result == null) {
+      return;
+    }
+    let { cell, element } = result;
+
+    if (!cell.inViewport) {
+      await this.scrollToCell(cell, 'center');
+    }
+
+    if (element == null) {
+      element = cell.node;
+    }
+    const widgetBox = this.node.getBoundingClientRect();
+    const elementBox = element.getBoundingClientRect();
+
+    if (
+      elementBox.top > widgetBox.bottom ||
+      elementBox.bottom < widgetBox.top
+    ) {
+      element.scrollIntoView({ block: 'center' });
+    }
   }
 
   /**
@@ -1600,7 +1828,10 @@ export class Notebook extends StaticNotebook {
         if (event.eventPhase === Event.CAPTURING_PHASE) {
           this._evtMouseDownCapture(event as MouseEvent);
         } else {
-          this._evtMouseDown(event as MouseEvent);
+          // Skip processing the event when it resulted from a toolbar button click
+          if (!event.defaultPrevented) {
+            this._evtMouseDown(event as MouseEvent);
+          }
         }
         break;
       case 'mouseup':
@@ -1626,18 +1857,19 @@ export class Notebook extends StaticNotebook {
         this._evtFocusOut(event as MouseEvent);
         break;
       case 'lm-dragenter':
-        this._evtDragEnter(event as IDragEvent);
+        this._evtDragEnter(event as Drag.Event);
         break;
       case 'lm-dragleave':
-        this._evtDragLeave(event as IDragEvent);
+        this._evtDragLeave(event as Drag.Event);
         break;
       case 'lm-dragover':
-        this._evtDragOver(event as IDragEvent);
+        this._evtDragOver(event as Drag.Event);
         break;
       case 'lm-drop':
-        this._evtDrop(event as IDragEvent);
+        this._evtDrop(event as Drag.Event);
         break;
       default:
+        super.handleEvent(event);
         break;
     }
   }
@@ -1683,12 +1915,14 @@ export class Notebook extends StaticNotebook {
     node.removeEventListener('lm-drop', this, true);
     document.removeEventListener('mousemove', this, true);
     document.removeEventListener('mouseup', this, true);
+    super.onBeforeAttach(msg);
   }
 
   /**
    * A message handler invoked on an `'after-show'` message.
    */
   protected onAfterShow(msg: Message): void {
+    super.onAfterShow(msg);
     this._checkCacheOnNextResize = true;
   }
 
@@ -1696,9 +1930,11 @@ export class Notebook extends StaticNotebook {
    * A message handler invoked on a `'resize'` message.
    */
   protected onResize(msg: Widget.ResizeMessage): void {
+    // TODO
     if (!this._checkCacheOnNextResize) {
       return super.onResize(msg);
     }
+    super.onResize(msg);
     this._checkCacheOnNextResize = false;
     const cache = this._cellLayoutStateCache;
     const width = parseInt(this.node.style.width, 10);
@@ -1713,8 +1949,8 @@ export class Notebook extends StaticNotebook {
 
     // Fallback:
     for (const w of this.widgets) {
-      if (w instanceof Cell) {
-        w.editorWidget.update();
+      if (w instanceof Cell && w.inViewport) {
+        w.editorWidget?.update();
       }
     }
   }
@@ -1723,6 +1959,7 @@ export class Notebook extends StaticNotebook {
    * A message handler invoked on an `'before-hide'` message.
    */
   protected onBeforeHide(msg: Message): void {
+    super.onBeforeHide(msg);
     // Update cache
     const width = parseInt(this.node.style.width, 10);
     this._cellLayoutStateCache = { width };
@@ -1732,6 +1969,7 @@ export class Notebook extends StaticNotebook {
    * Handle `'activate-request'` messages.
    */
   protected onActivateRequest(msg: Message): void {
+    super.onActivateRequest(msg);
     this._ensureFocus(true);
   }
 
@@ -1739,6 +1977,7 @@ export class Notebook extends StaticNotebook {
    * Handle `update-request` messages sent to the widget.
    */
   protected onUpdateRequest(msg: Message): void {
+    super.onUpdateRequest(msg);
     const activeCell = this.activeCell;
 
     // Set the appropriate classes on the cells.
@@ -1754,7 +1993,7 @@ export class Notebook extends StaticNotebook {
     }
 
     let count = 0;
-    each(this.widgets, widget => {
+    for (const widget of this.widgets) {
       if (widget !== activeCell) {
         widget.removeClass(ACTIVE_CLASS);
       }
@@ -1765,47 +2004,21 @@ export class Notebook extends StaticNotebook {
       } else {
         widget.removeClass(SELECTED_CLASS);
       }
-    });
+    }
     if (count > 1) {
       activeCell?.addClass(OTHER_SELECTED_CLASS);
     }
-    if (this._fragment) {
-      let el;
-      try {
-        el = this.node.querySelector(
-          this._fragment.startsWith('#')
-            ? `#${CSS.escape(this._fragment.slice(1))}`
-            : this._fragment
-        );
-      } catch (error) {
-        console.warn('Unable to set URI fragment identifier', error);
-      }
-      if (el) {
-        el.scrollIntoView();
-      }
-      this._fragment = '';
-    }
   }
 
   /**
    * Handle a cell being inserted.
    */
   protected onCellInserted(index: number, cell: Cell): void {
-    if (this.model && this.model.modelDB.isCollaborative) {
-      const modelDB = this.model.modelDB;
-      void modelDB.connected.then(() => {
-        if (!cell.isDisposed) {
-          // Setup the selection style for collaborators.
-          const localCollaborator = modelDB.collaborators!.localCollaborator;
-          cell.editor.uuid = localCollaborator.sessionId;
-          cell.editor.selectionStyle = {
-            ...CodeEditor.defaultSelectionStyle,
-            color: localCollaborator.color
-          };
-        }
-      });
-    }
-    cell.editor.edgeRequested.connect(this._onEdgeRequest, this);
+    void cell.ready.then(() => {
+      if (!cell.isDisposed) {
+        cell.editor!.edgeRequested.connect(this._onEdgeRequest, this);
+      }
+    });
     // If the insertion happened above, increment the active cell
     // index, otherwise it stays the same.
     this.activeCellIndex =
@@ -1814,20 +2027,6 @@ export class Notebook extends StaticNotebook {
         : this.activeCellIndex;
   }
 
-  /**
-   * Handle a cell being moved.
-   */
-  protected onCellMoved(fromIndex: number, toIndex: number): void {
-    const i = this.activeCellIndex;
-    if (fromIndex === i) {
-      this.activeCellIndex = toIndex;
-    } else if (fromIndex < i && i <= toIndex) {
-      this.activeCellIndex--;
-    } else if (toIndex <= i && i < fromIndex) {
-      this.activeCellIndex++;
-    }
-  }
-
   /**
    * Handle a cell being removed.
    */
@@ -1870,15 +2069,19 @@ export class Notebook extends StaticNotebook {
       // Move the cursor to the first position on the last line.
       if (this.activeCellIndex < prev) {
         const editor = this.activeCell!.editor;
-        const lastLine = editor.lineCount - 1;
-        editor.setCursorPosition({ line: lastLine, column: 0 });
+        if (editor) {
+          const lastLine = editor.lineCount - 1;
+          editor.setCursorPosition({ line: lastLine, column: 0 });
+        }
       }
     } else if (location === 'bottom') {
       this.activeCellIndex++;
       // Move the cursor to the first character.
       if (this.activeCellIndex > prev) {
         const editor = this.activeCell!.editor;
-        editor.setCursorPosition({ line: 0, column: 0 });
+        if (editor) {
+          editor.setCursorPosition({ line: 0, column: 0 });
+        }
       }
     }
     this.mode = 'edit';
@@ -1890,8 +2093,21 @@ export class Notebook extends StaticNotebook {
   private _ensureFocus(force = false): void {
     const activeCell = this.activeCell;
     if (this.mode === 'edit' && activeCell) {
-      if (!activeCell.editor.hasFocus()) {
-        activeCell.editor.focus();
+      // Test for !== true to cover hasFocus is false and editor is not yet rendered.
+      if (activeCell.editor?.hasFocus() !== true) {
+        if (activeCell.inViewport) {
+          activeCell.editor?.focus();
+        } else {
+          this.scrollToItem(this.activeCellIndex)
+            .then(() => {
+              void activeCell.ready.then(() => {
+                activeCell.editor?.focus();
+              });
+            })
+            .catch(reason => {
+              // no-op
+            });
+        }
       }
     }
     if (force && !this.node.contains(document.activeElement)) {
@@ -1948,6 +2164,68 @@ export class Notebook extends StaticNotebook {
     return [target, index];
   }
 
+  /**
+   * Find heading with given ID in any of the cells.
+   */
+  async _findHeading(queryId: string): Promise<Private.IScrollTarget | null> {
+    // Loop on cells, get headings and search for first matching id.
+    for (let cellIdx = 0; cellIdx < this.widgets.length; cellIdx++) {
+      const cell = this.widgets[cellIdx];
+      if (
+        cell.model.type === 'raw' ||
+        (cell.model.type === 'markdown' && !(cell as MarkdownCell).rendered)
+      ) {
+        // Bail early
+        continue;
+      }
+      for (const heading of cell.headings) {
+        let id: string | undefined | null = '';
+        switch (heading.type) {
+          case Cell.HeadingType.HTML:
+            id = (heading as TableOfContentsUtils.IHTMLHeading).id;
+            break;
+          case Cell.HeadingType.Markdown:
+            {
+              const mdHeading =
+                heading as any as TableOfContentsUtils.Markdown.IMarkdownHeading;
+              id = await TableOfContentsUtils.Markdown.getHeadingId(
+                this.rendermime.markdownParser!,
+                mdHeading.raw,
+                mdHeading.level
+              );
+            }
+            break;
+        }
+        if (id === queryId) {
+          const element = this.node.querySelector(
+            `h${heading.level}[id="${id}"]`
+          ) as HTMLElement;
+
+          return {
+            cell,
+            element
+          };
+        }
+      }
+    }
+    return null;
+  }
+
+  /**
+   * Find cell by its unique ID.
+   */
+  _findCellById(queryId: string): Private.IScrollTarget | null {
+    for (let cellIdx = 0; cellIdx < this.widgets.length; cellIdx++) {
+      const cell = this.widgets[cellIdx];
+      if (cell.model.id === queryId) {
+        return {
+          cell
+        };
+      }
+    }
+    return null;
+  }
+
   /**
    * Handle `contextmenu` event.
    */
@@ -1962,7 +2240,7 @@ export class Notebook extends StaticNotebook {
     const [target, index] = this._findEventTargetAndCell(event);
     const widget = this.widgets[index];
 
-    if (widget && widget.editorWidget.node.contains(target)) {
+    if (widget && widget.editorWidget?.node.contains(target)) {
       // Prevent CodeMirror from focusing the editor.
       // TODO: find an editor-agnostic solution.
       event.preventDefault();
@@ -1985,7 +2263,7 @@ export class Notebook extends StaticNotebook {
       button === 2 &&
       !shiftKey &&
       widget &&
-      widget.editorWidget.node.contains(target)
+      widget.editorWidget?.node.contains(target)
     ) {
       this.mode = 'command';
 
@@ -2016,9 +2294,9 @@ export class Notebook extends StaticNotebook {
 
     let targetArea: 'input' | 'prompt' | 'cell' | 'notebook';
     if (widget) {
-      if (widget.editorWidget.node.contains(target)) {
+      if (widget.editorWidget?.node.contains(target)) {
         targetArea = 'input';
-      } else if (widget.promptNode.contains(target)) {
+      } else if (widget.promptNode?.contains(target)) {
         targetArea = 'prompt';
       } else {
         targetArea = 'cell';
@@ -2163,7 +2441,7 @@ export class Notebook extends StaticNotebook {
   /**
    * Handle the `'lm-dragenter'` event for the widget.
    */
-  private _evtDragEnter(event: IDragEvent): void {
+  private _evtDragEnter(event: Drag.Event): void {
     if (!event.mimeData.hasData(JUPYTER_CELL_MIME)) {
       return;
     }
@@ -2175,14 +2453,14 @@ export class Notebook extends StaticNotebook {
       return;
     }
 
-    const widget = (this.layout as PanelLayout).widgets[index];
+    const widget = this.cellsArray[index];
     widget.node.classList.add(DROP_TARGET_CLASS);
   }
 
   /**
    * Handle the `'lm-dragleave'` event for the widget.
    */
-  private _evtDragLeave(event: IDragEvent): void {
+  private _evtDragLeave(event: Drag.Event): void {
     if (!event.mimeData.hasData(JUPYTER_CELL_MIME)) {
       return;
     }
@@ -2197,7 +2475,7 @@ export class Notebook extends StaticNotebook {
   /**
    * Handle the `'lm-dragover'` event for the widget.
    */
-  private _evtDragOver(event: IDragEvent): void {
+  private _evtDragOver(event: Drag.Event): void {
     if (!event.mimeData.hasData(JUPYTER_CELL_MIME)) {
       return;
     }
@@ -2213,14 +2491,14 @@ export class Notebook extends StaticNotebook {
     if (index === -1) {
       return;
     }
-    const widget = (this.layout as PanelLayout).widgets[index];
+    const widget = this.cellsArray[index];
     widget.node.classList.add(DROP_TARGET_CLASS);
   }
 
   /**
    * Handle the `'lm-drop'` event for the widget.
    */
-  private _evtDrop(event: IDragEvent): void {
+  private _evtDrop(event: Drag.Event): void {
     if (!event.mimeData.hasData(JUPYTER_CELL_MIME)) {
       return;
     }
@@ -2281,17 +2559,7 @@ export class Notebook extends StaticNotebook {
       }
 
       // Move the cells one by one
-      model.cells.beginCompoundOperation();
-      if (fromIndex < toIndex) {
-        each(toMove, cellWidget => {
-          model.cells.move(fromIndex, toIndex);
-        });
-      } else if (fromIndex > toIndex) {
-        each(toMove, cellWidget => {
-          model.cells.move(fromIndex++, toIndex++);
-        });
-      }
-      model.cells.endCompoundOperation();
+      this.moveCell(fromIndex, toIndex, toMove.length);
     } else {
       // Handle the case where we are copying cells between
       // notebooks.
@@ -2303,26 +2571,9 @@ export class Notebook extends StaticNotebook {
       }
       const start = index;
       const values = event.mimeData.getData(JUPYTER_CELL_MIME);
-      const factory = model.contentFactory;
-
       // Insert the copies of the original cells.
-      model.cells.beginCompoundOperation();
-      each(values, (cell: nbformat.ICell) => {
-        let value: ICellModel;
-        switch (cell.cell_type) {
-          case 'code':
-            value = factory.createCodeCell({ cell });
-            break;
-          case 'markdown':
-            value = factory.createMarkdownCell({ cell });
-            break;
-          default:
-            value = factory.createRawCell({ cell });
-            break;
-        }
-        model.cells.insert(index++, value);
-      });
-      model.cells.endCompoundOperation();
+      // We preserve trust status of pasted cells by not modifying metadata.
+      model.sharedModel.insertCells(index, values);
       // Select the inserted cells.
       this.deselectAll();
       this.activeCellIndex = start;
@@ -2337,15 +2588,15 @@ export class Notebook extends StaticNotebook {
     const cells = this.model!.cells;
     const selected: nbformat.ICell[] = [];
     const toMove: Cell[] = [];
-
-    each(this.widgets, (widget, i) => {
-      const cell = cells.get(i);
+    let i = -1;
+    for (const widget of this.widgets) {
+      const cell = cells.get(++i);
       if (this.isSelectedOrActive(widget)) {
         widget.addClass(DROP_SOURCE_CLASS);
         selected.push(cell.toJSON());
         toMove.push(widget);
       }
-    });
+    }
     const activeCell = this.activeCell;
     let dragImage: HTMLElement | null = null;
     let countString: string;
@@ -2364,7 +2615,8 @@ export class Notebook extends StaticNotebook {
     dragImage = Private.createDragImage(
       selected.length,
       countString,
-      activeCell?.model.value.text.split('\n')[0].slice(0, 26) ?? ''
+      activeCell?.model.sharedModel.getSource().split('\n')[0].slice(0, 26) ??
+        ''
     );
 
     // Set up the drag event.
@@ -2382,7 +2634,9 @@ export class Notebook extends StaticNotebook {
     this._drag.mimeData.setData('internal:cells', toMove);
     // Add mimeData for the text content of the selected cells,
     // allowing for drag/drop into plain text fields.
-    const textContent = toMove.map(cell => cell.model.value.text).join('\n');
+    const textContent = toMove
+      .map(cell => cell.model.sharedModel.getSource())
+      .join('\n');
     this._drag.mimeData.setData('text/plain', textContent);
 
     // Remove mousemove and mouseup listeners and start the drag.
@@ -2394,9 +2648,9 @@ export class Notebook extends StaticNotebook {
         return;
       }
       this._drag = null;
-      each(toMove, widget => {
+      for (const widget of toMove) {
         widget.removeClass(DROP_SOURCE_CLASS);
-      });
+      }
     });
   }
 
@@ -2409,13 +2663,13 @@ export class Notebook extends StaticNotebook {
     if (index !== -1) {
       const widget = this.widgets[index];
       // If the editor itself does not have focus, ensure command mode.
-      if (!widget.editorWidget.node.contains(target)) {
+      if (widget.editorWidget && !widget.editorWidget.node.contains(target)) {
         this.mode = 'command';
       }
       this.activeCellIndex = index;
       // If the editor has focus, ensure edit mode.
-      const node = widget.editorWidget.node;
-      if (node.contains(target)) {
+      const node = widget.editorWidget?.node;
+      if (node?.contains(target)) {
         this.mode = 'edit';
       }
       this.activeCellIndex = index;
@@ -2442,7 +2696,7 @@ export class Notebook extends StaticNotebook {
     const index = this._findCell(relatedTarget);
     if (index !== -1) {
       const widget = this.widgets[index];
-      if (widget.editorWidget.node.contains(relatedTarget)) {
+      if (widget.editorWidget?.node.contains(relatedTarget)) {
         return;
       }
     }
@@ -2496,7 +2750,9 @@ export class Notebook extends StaticNotebook {
     for (let i = 0; i < this.widgets.length; i++) {
       if (i !== this._activeCellIndex) {
         const cell = this.widgets[i];
-        cell.model.selections.delete(cell.editor.uuid);
+        if (!cell.model.isDisposed && cell.editor) {
+          cell.model.selections.delete(cell.editor.uuid);
+        }
       }
     }
   }
@@ -2505,14 +2761,13 @@ export class Notebook extends StaticNotebook {
   private _activeCell: Cell | null = null;
   private _mode: NotebookMode = 'command';
   private _drag: Drag | null = null;
-  private _fragment = '';
   private _dragData: {
     pressX: number;
     pressY: number;
     index: number;
   } | null = null;
   private _mouseMode: 'select' | 'couldDrag' | null = null;
-  private _activeCellChanged = new Signal<this, Cell>(this);
+  private _activeCellChanged = new Signal<this, Cell | null>(this);
   private _stateChanged = new Signal<this, IChangedArgs<any>>(this);
   private _selectionChanged = new Signal<this, void>(this);
 
@@ -2521,6 +2776,12 @@ export class Notebook extends StaticNotebook {
   private _checkCacheOnNextResize = false;
 
   private _lastClipboardInteraction: 'copy' | 'cut' | 'paste' | null = null;
+  private _updateSelectedCells(): void {
+    this._selectedCells = this.widgets.filter(cell =>
+      this.isSelectedOrActive(cell)
+    );
+  }
+  private _selectedCells: Cell[] = [];
 }
 
 /**
@@ -2555,8 +2816,6 @@ export namespace Notebook {
      */
     export interface IOptions extends StaticNotebook.ContentFactory.IOptions {}
   }
-
-  export const defaultContentFactory: IContentFactory = new ContentFactory();
 }
 
 /**
@@ -2651,23 +2910,30 @@ namespace Private {
   }
 
   /**
-   * Process the `IOptions` passed to the notebook widget.
-   *
-   * #### Notes
-   * This defaults the content factory to that in the `Notebook` namespace.
+   * Information about resolved scroll target defined by URL fragment.
    */
-  export function processNotebookOptions(
-    options: Notebook.IOptions
-  ): Notebook.IOptions {
-    if (options.contentFactory) {
-      return options;
-    } else {
-      return {
-        rendermime: options.rendermime,
-        languagePreference: options.languagePreference,
-        contentFactory: Notebook.defaultContentFactory,
-        mimeTypeService: options.mimeTypeService
-      };
-    }
+  export interface IScrollTarget {
+    /**
+     * Target cell.
+     */
+    cell: Cell;
+    /**
+     * Element to scroll to within the cell.
+     */
+    element?: HTMLElement;
+  }
+
+  /**
+   * Parsed fragment identifier data.
+   */
+  export interface IFragmentData {
+    /**
+     * The kind of notebook element targetted by the fragment identifier.
+     */
+    kind: 'heading' | 'cell-id';
+    /*
+     * The value of the fragment query.
+     */
+    value: string;
   }
 }
diff --git a/packages/notebook/src/widgetfactory.ts b/packages/notebook/src/widgetfactory.ts
index ab4cda1ddc5a..1d8179adc061 100644
--- a/packages/notebook/src/widgetfactory.ts
+++ b/packages/notebook/src/widgetfactory.ts
@@ -1,15 +1,10 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ISessionContextDialogs,
-  sessionContextDialogs
-} from '@jupyterlab/apputils';
 import { IEditorMimeTypeService } from '@jupyterlab/codeeditor';
 import { ABCWidgetFactory, DocumentRegistry } from '@jupyterlab/docregistry';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ITranslator } from '@jupyterlab/translation';
-import { ToolbarItems } from './default-toolbar';
 import { INotebookModel } from './model';
 import { NotebookPanel } from './panel';
 import { StaticNotebook } from './widget';
@@ -29,14 +24,12 @@ export class NotebookWidgetFactory extends ABCWidgetFactory<
   constructor(options: NotebookWidgetFactory.IOptions<NotebookPanel>) {
     super(options);
     this.rendermime = options.rendermime;
-    this.contentFactory =
-      options.contentFactory || NotebookPanel.defaultContentFactory;
+    this.contentFactory = options.contentFactory;
     this.mimeTypeService = options.mimeTypeService;
     this._editorConfig =
       options.editorConfig || StaticNotebook.defaultEditorConfig;
     this._notebookConfig =
       options.notebookConfig || StaticNotebook.defaultNotebookConfig;
-    this._sessionDialogs = options.sessionDialogs || sessionContextDialogs;
   }
 
   /*
@@ -84,6 +77,7 @@ export class NotebookWidgetFactory extends ABCWidgetFactory<
     context: DocumentRegistry.IContext<INotebookModel>,
     source?: NotebookPanel
   ): NotebookPanel {
+    const translator = (context as any).translator;
     const nbOptions = {
       rendermime: source
         ? source.content.rendermime
@@ -94,29 +88,15 @@ export class NotebookWidgetFactory extends ABCWidgetFactory<
       notebookConfig: source
         ? source.content.notebookConfig
         : this._notebookConfig,
-      translator: this.translator
+      translator
     };
     const content = this.contentFactory.createNotebook(nbOptions);
 
     return new NotebookPanel({ context, content });
   }
 
-  /**
-   * Default factory for toolbar items to be added after the widget is created.
-   */
-  protected defaultToolbarFactory(
-    widget: NotebookPanel
-  ): DocumentRegistry.IToolbarItem[] {
-    return ToolbarItems.getDefaultItems(
-      widget,
-      this._sessionDialogs,
-      this.translator
-    );
-  }
-
   private _editorConfig: StaticNotebook.IEditorConfig;
   private _notebookConfig: StaticNotebook.INotebookConfig;
-  private _sessionDialogs: ISessionContextDialogs;
 }
 
 /**
@@ -153,11 +133,6 @@ export namespace NotebookWidgetFactory {
      */
     notebookConfig?: StaticNotebook.INotebookConfig;
 
-    /**
-     * The session context dialogs.
-     */
-    sessionDialogs?: ISessionContextDialogs;
-
     /**
      * The application language translator.
      */
@@ -169,6 +144,11 @@ export namespace NotebookWidgetFactory {
    */
   export interface IFactory
     extends DocumentRegistry.IWidgetFactory<NotebookPanel, INotebookModel> {
+    /**
+     * Whether to automatically start the preferred kernel.
+     */
+    autoStartDefault: boolean;
+
     /**
      * A configuration object for cell editor settings.
      */
diff --git a/packages/notebook/src/windowing.ts b/packages/notebook/src/windowing.ts
new file mode 100644
index 000000000000..1e2c70d1e936
--- /dev/null
+++ b/packages/notebook/src/windowing.ts
@@ -0,0 +1,384 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { Cell, CodeCell } from '@jupyterlab/cells';
+import {
+  WindowedLayout,
+  WindowedList,
+  WindowedListModel
+} from '@jupyterlab/ui-components';
+import { Message, MessageLoop } from '@lumino/messaging';
+import { Widget } from '@lumino/widgets';
+import { DROP_SOURCE_CLASS, DROP_TARGET_CLASS } from './constants';
+
+/**
+ * Notebook view model for the windowed list.
+ */
+export class NotebookViewModel extends WindowedListModel {
+  /**
+   * Default cell height
+   */
+  static DEFAULT_CELL_SIZE = 39;
+  /**
+   * Default editor line height
+   */
+  static DEFAULT_EDITOR_LINE_HEIGHT = 17;
+  /**
+   * Default cell margin (top + bottom)
+   */
+  static DEFAULT_CELL_MARGIN = 22;
+
+  /**
+   * Construct a notebook windowed list model.
+   */
+  constructor(
+    protected cells: Cell[],
+    options?: WindowedList.IModelOptions
+  ) {
+    super(options);
+    // Set default cell size
+    this._estimatedWidgetSize = NotebookViewModel.DEFAULT_CELL_SIZE;
+  }
+
+  /**
+   * Cell size estimator
+   *
+   * @param index Cell index
+   * @returns Cell height in pixels
+   */
+  estimateWidgetSize = (index: number): number => {
+    // TODO could be improved, takes only into account the editor height
+    const nLines = this.cells[index].model.sharedModel
+      .getSource()
+      .split('\n').length;
+    return (
+      NotebookViewModel.DEFAULT_EDITOR_LINE_HEIGHT * nLines +
+      NotebookViewModel.DEFAULT_CELL_MARGIN
+    );
+  };
+
+  /**
+   * Render the cell at index.
+   *
+   * @param index Cell index
+   * @returns Cell widget
+   */
+  widgetRenderer = (index: number): Widget => {
+    return this.cells[index];
+  };
+}
+
+/**
+ * Windowed list layout for the notebook.
+ */
+export class NotebookWindowedLayout extends WindowedLayout {
+  private _header: Widget | null = null;
+  private _footer: Widget | null = null;
+
+  /**
+   * Notebook's header
+   */
+  get header(): Widget | null {
+    return this._header;
+  }
+  set header(header: Widget | null) {
+    if (this._header && this._header.isAttached) {
+      Widget.detach(this._header);
+    }
+    this._header = header;
+    if (this._header && this.parent?.isAttached) {
+      Widget.attach(this._header, this.parent!.node);
+    }
+  }
+
+  /**
+   * Notebook widget's footer
+   */
+  get footer(): Widget | null {
+    return this._footer;
+  }
+  set footer(footer: Widget | null) {
+    if (this._footer && this._footer.isAttached) {
+      Widget.detach(this._footer);
+    }
+    this._footer = footer;
+    if (this._footer && this.parent?.isAttached) {
+      Widget.attach(this._footer, this.parent!.node);
+    }
+  }
+
+  /**
+   * Dispose the layout
+   * */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this._header?.dispose();
+    this._footer?.dispose();
+    super.dispose();
+  }
+
+  /**
+   * * A message handler invoked on a `'child-removed'` message.
+   * *
+   * @param widget - The widget to remove from the layout.
+   *
+   * #### Notes
+   * A widget is automatically removed from the layout when its `parent`
+   * is set to `null`. This method should only be invoked directly when
+   * removing a widget from a layout which has yet to be installed on a
+   * parent widget.
+   *
+   * This method does *not* modify the widget's `parent`.
+   */
+  removeWidget(widget: Widget): void {
+    const index = this.widgets.indexOf(widget);
+    // We need to deal with code cell widget not in viewport (aka not in this.widgets) but still
+    // partly attached
+    if (index >= 0) {
+      this.removeWidgetAt(index);
+    } // If the layout is parented, detach the widget from the DOM.
+    else if (widget === this._willBeRemoved && this.parent) {
+      this.detachWidget(index, widget);
+    }
+  }
+
+  /**
+   * Attach a widget to the parent's DOM node.
+   *
+   * @param index - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to attach to the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation adds the widgets's node to the parent's
+   * node at the proper location, and sends the appropriate attach
+   * messages to the widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is added to the parent's node.
+   */
+  protected attachWidget(index: number, widget: Widget): void {
+    // Status may change in onBeforeAttach
+    const wasPlaceholder = (widget as Cell).isPlaceholder();
+    // Initialized sub-widgets or attached them for CodeCell
+    if (this.parent!.isAttached) {
+      MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);
+    }
+
+    if (
+      !wasPlaceholder &&
+      widget instanceof CodeCell &&
+      widget.node.parentElement
+    ) {
+      // We don't remove code cells to preserve outputs internal state
+      widget.node.style.display = '';
+
+      // Reset cache
+      this._topHiddenCodeCells = -1;
+    } else {
+      // Look up the next sibling reference node.
+      const siblingIndex = this._findNearestChildBinarySearch(
+        this.parent!.viewportNode.childElementCount - 1,
+        0,
+        parseInt(widget.dataset.windowedListIndex!, 10) + 1
+      );
+      let ref = this.parent!.viewportNode.children[siblingIndex];
+
+      // Insert the widget's node before the sibling.
+      this.parent!.viewportNode.insertBefore(widget.node, ref);
+
+      // Send an `'after-attach'` message if the parent is attached.
+      // Event listeners will be added here
+      // Some widgets are updating/resetting when attached, so
+      // we should not recall this each time a cell move into the
+      // viewport.
+      if (this.parent!.isAttached) {
+        MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);
+      }
+    }
+
+    (widget as Cell).inViewport = true;
+  }
+
+  /**
+   * Detach a widget from the parent's DOM node.
+   *
+   * @param index - The previous index of the widget in the layout.
+   *
+   * @param widget - The widget to detach from the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation removes the widget's node from the
+   * parent's node, and sends the appropriate detach messages to the
+   * widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is removed from the parent's node.
+   */
+  protected detachWidget(index: number, widget: Widget): void {
+    (widget as Cell).inViewport = false;
+
+    // TODO we could improve this further by discarding also the code cell without outputs
+    if (
+      widget instanceof CodeCell &&
+      // We detach the code cell currently dragged otherwise it won't be attached at the correct position
+      !widget.node.classList.contains(DROP_SOURCE_CLASS) &&
+      widget !== this._willBeRemoved
+    ) {
+      // We don't remove code cells to preserve outputs internal state
+      // Transform does not work because the widget height is kept (at lease in FF)
+      widget.node.style.display = 'none';
+
+      // Reset cache
+      this._topHiddenCodeCells = -1;
+    } else {
+      // Send a `'before-detach'` message if the parent is attached.
+      // This should not be called every time a cell leaves the viewport
+      // as it will remove listeners that won't be added back as afterAttach
+      // is shunted to avoid unwanted update/reset.
+      if (this.parent!.isAttached) {
+        // Event listeners will be removed here
+        MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);
+      }
+      // Remove the widget's node from the parent.
+      this.parent!.viewportNode.removeChild(widget.node);
+
+      // Ensure to clean up drop target class if the widget move out of the viewport
+      widget.node.classList.remove(DROP_TARGET_CLASS);
+    }
+
+    if (this.parent!.isAttached) {
+      // Detach sub widget of CodeCell except the OutputAreaWrapper
+      MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);
+    }
+  }
+
+  /**
+   * Move a widget in the parent's DOM node.
+   *
+   * @param fromIndex - The previous index of the widget in the layout.
+   *
+   * @param toIndex - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to move in the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation moves the widget's node to the proper
+   * location in the parent's node and sends the appropriate attach and
+   * detach messages to the widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is moved in the parent's node.
+   */
+  protected moveWidget(
+    fromIndex: number,
+    toIndex: number,
+    widget: Widget
+  ): void {
+    // Optimize move without de-/attaching as motion appends with parent attached
+    // Case fromIndex === toIndex, already checked in PanelLayout.insertWidget
+    if (this._topHiddenCodeCells < 0) {
+      this._topHiddenCodeCells = 0;
+      for (
+        let idx = 0;
+        idx < this.parent!.viewportNode.children.length;
+        idx++
+      ) {
+        const n = this.parent!.viewportNode.children[idx];
+        if ((n as HTMLElement).style.display == 'none') {
+          this._topHiddenCodeCells++;
+        } else {
+          break;
+        }
+      }
+    }
+
+    const ref =
+      this.parent!.viewportNode.children[toIndex + this._topHiddenCodeCells];
+    if (fromIndex < toIndex) {
+      ref.insertAdjacentElement('afterend', widget.node);
+    } else {
+      ref.insertAdjacentElement('beforebegin', widget.node);
+    }
+  }
+
+  protected onAfterAttach(msg: Message): void {
+    super.onAfterAttach(msg);
+    if (this._header && !this._header.isAttached) {
+      Widget.attach(
+        this._header,
+        this.parent!.node,
+        this.parent!.node.firstElementChild as HTMLElement | null
+      );
+    }
+    if (this._footer && !this._footer.isAttached) {
+      Widget.attach(this._footer, this.parent!.node);
+    }
+  }
+
+  protected onBeforeDetach(msg: Message): void {
+    if (this._header?.isAttached) {
+      Widget.detach(this._header);
+    }
+    if (this._footer?.isAttached) {
+      Widget.detach(this._footer);
+    }
+    super.onBeforeDetach(msg);
+  }
+
+  /**
+   * A message handler invoked on a `'child-removed'` message.
+   *
+   * @param msg Message
+   */
+  protected onChildRemoved(msg: Widget.ChildMessage): void {
+    this._willBeRemoved = msg.child;
+    super.onChildRemoved(msg);
+    this._willBeRemoved = null;
+  }
+
+  private _findNearestChildBinarySearch(
+    high: number,
+    low: number,
+    index: number
+  ): number {
+    while (low <= high) {
+      const middle = low + Math.floor((high - low) / 2);
+      const currentIndex = parseInt(
+        (this.parent!.viewportNode.children[middle] as HTMLElement).dataset
+          .windowedListIndex!,
+        10
+      );
+
+      if (currentIndex === index) {
+        return middle;
+      } else if (currentIndex < index) {
+        low = middle + 1;
+      } else if (currentIndex > index) {
+        high = middle - 1;
+      }
+    }
+
+    if (low > 0) {
+      return low;
+    } else {
+      return 0;
+    }
+  }
+
+  private _willBeRemoved: Widget | null = null;
+  private _topHiddenCodeCells: number = -1;
+}
diff --git a/packages/notebook/style/base.css b/packages/notebook/style/base.css
index f29e5a8770d3..d11b04629ed1 100644
--- a/packages/notebook/style/base.css
+++ b/packages/notebook/style/base.css
@@ -4,27 +4,33 @@
 |----------------------------------------------------------------------------*/
 
 /*-----------------------------------------------------------------------------
-| Private CSS variables
+| Imports
+|----------------------------------------------------------------------------*/
+
+@import './toolbar.css';
+@import './executionindicator.css';
+@import './toc.css';
+@import './notebookfooter.css';
+
+/*-----------------------------------------------------------------------------
+| CSS variables
 |----------------------------------------------------------------------------*/
 
 :root {
+  --jp-side-by-side-output-size: 1fr;
+  --jp-side-by-side-resized-cell: var(--jp-side-by-side-output-size);
   --jp-private-notebook-dragImage-width: 304px;
   --jp-private-notebook-dragImage-height: 36px;
   --jp-private-notebook-selected-color: var(--md-blue-400);
   --jp-private-notebook-active-color: var(--md-green-400);
 }
 
-/*-----------------------------------------------------------------------------
-| Imports
-|----------------------------------------------------------------------------*/
-
-@import './toolbar.css';
-@import './executionindicator.css';
-
 /*-----------------------------------------------------------------------------
 | Notebook
 |----------------------------------------------------------------------------*/
 
+/* stylelint-disable selector-max-class */
+
 .jp-NotebookPanel {
   display: block;
   height: 100%;
@@ -98,7 +104,8 @@
 .jp-Notebook .jp-Cell.jp-mod-dirty .jp-InputPrompt {
   color: var(--jp-warn-color1);
 }
-.jp-Notebook .jp-Cell.jp-mod-dirty .jp-InputPrompt:before {
+
+.jp-Notebook .jp-Cell.jp-mod-dirty .jp-InputPrompt::before {
   color: var(--jp-warn-color1);
   content: '•';
 }
@@ -166,7 +173,7 @@
 }
 
 .jp-dragImage-singlePrompt {
-  box-shadow: 2px 2px 4px 0px rgba(0, 0, 0, 0.12);
+  box-shadow: 2px 2px 4px 0 rgba(0, 0, 0, 0.12);
 }
 
 .jp-dragImage .jp-dragImage-content {
@@ -180,7 +187,7 @@
   background: var(--jp-cell-editor-background-color);
   color: var(--jp-content-font-color3);
   text-align: left;
-  margin: 4px 4px 4px 0px;
+  margin: 4px 4px 4px 0;
 }
 
 .jp-dragImage .jp-dragImage-prompt {
@@ -205,7 +212,7 @@
   left: 8px;
   background: var(--jp-layout-color2);
   border: var(--jp-border-width) solid var(--jp-input-border-color);
-  box-shadow: 2px 2px 4px 0px rgba(0, 0, 0, 0.12);
+  box-shadow: 2px 2px 4px 0 rgba(0, 0, 0, 0.12);
 }
 
 /*-----------------------------------------------------------------------------
@@ -217,40 +224,42 @@
   min-width: var(--jp-sidebar-min-width);
   color: var(--jp-ui-font-color1);
   background: var(--jp-layout-color1);
+
   /* This is needed so that all font sizing of children done in ems is
     * relative to this base size */
   font-size: var(--jp-ui-font-size1);
   overflow: auto;
 }
 
-.jp-NotebookTools-tool {
-  padding: 0px 12px 0 12px;
-}
-
 .jp-ActiveCellTool {
-  padding: 12px;
-  background-color: var(--jp-layout-color1);
-  border-top: none !important;
+  padding: 12px 0;
+  display: flex;
 }
 
-.jp-ActiveCellTool .jp-InputArea-prompt {
-  flex: 0 0 auto;
-  padding-left: 0px;
+.jp-ActiveCellTool-Content {
+  flex: 1 1 auto;
 }
 
-.jp-ActiveCellTool .jp-InputArea-editor {
-  flex: 1 1 auto;
+.jp-ActiveCellTool .jp-ActiveCellTool-CellContent {
   background: var(--jp-cell-editor-background);
-  border-color: var(--jp-cell-editor-border-color);
+  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
+  border-radius: 0;
+  min-height: 29px;
 }
 
-.jp-ActiveCellTool .jp-InputArea-editor .CodeMirror {
-  background: transparent;
+.jp-ActiveCellTool .jp-InputPrompt {
+  min-width: calc(var(--jp-cell-prompt-width) * 0.75);
+}
+
+.jp-ActiveCellTool-CellContent > pre {
+  padding: 5px 4px;
+  margin: 0;
+  white-space: normal;
 }
 
 .jp-MetadataEditorTool {
   flex-direction: column;
-  padding: 12px 0px 12px 0px;
+  padding: 12px 0;
 }
 
 .jp-RankedPanel > :not(:first-child) {
@@ -264,13 +273,19 @@
 }
 
 .jp-KeySelector label,
-.jp-MetadataEditorTool label {
+.jp-MetadataEditorTool label,
+.jp-NumberSetter label {
   line-height: 1.4;
 }
 
 .jp-NotebookTools .jp-select-wrapper {
   margin-top: 4px;
-  margin-bottom: 0px;
+  margin-bottom: 0;
+}
+
+.jp-NumberSetter input {
+  width: 100%;
+  margin-top: 4px;
 }
 
 .jp-NotebookTools .jp-Collapse {
@@ -294,11 +309,6 @@
 /*-----------------------------------------------------------------------------
 | Side-by-side Mode (.jp-mod-sideBySide)
 |----------------------------------------------------------------------------*/
-:root {
-  --jp-side-by-side-output-size: 1fr;
-  --jp-side-by-side-resized-cell: var(--jp-side-by-side-output-size);
-}
-
 .jp-mod-sideBySide.jp-Notebook .jp-Notebook-cell {
   margin-top: 3em;
   margin-bottom: 3em;
@@ -308,8 +318,8 @@
 
 .jp-mod-sideBySide.jp-Notebook .jp-CodeCell {
   display: grid;
-  grid-template-columns: minmax(0, 1fr) min-content minmax(
-      0,
+  grid-template-columns: minmax(70px, 1fr) min-content minmax(
+      70px,
       var(--jp-side-by-side-output-size)
     );
   grid-template-rows: auto minmax(0, 1fr) auto;
@@ -320,8 +330,8 @@
 }
 
 .jp-mod-sideBySide.jp-Notebook .jp-CodeCell.jp-mod-resizedCell {
-  grid-template-columns: minmax(0, 1fr) min-content minmax(
-      0,
+  grid-template-columns: minmax(70px, 1fr) min-content minmax(
+      70px,
       var(--jp-side-by-side-resized-cell)
     );
 }
@@ -410,10 +420,6 @@
   background-repeat: no-repeat;
   background-size: 800px 104px;
   height: 104px;
-  position: relative;
-}
-
-.jp-Cell-Placeholder-wrapper-body div {
   position: absolute;
   right: 15px;
   left: 15px;
@@ -453,3 +459,12 @@ div.jp-Cell-Placeholder-content-2 {
 div.jp-Cell-Placeholder-content-3 {
   top: 140px;
 }
+
+/*-----------------------------------------------------------------------------
+| Printing
+|----------------------------------------------------------------------------*/
+@media print {
+  .jp-Notebook .jp-Cell .jp-InputPrompt {
+    float: none;
+  }
+}
diff --git a/packages/notebook/style/index.css b/packages/notebook/style/index.css
index f15f966a351a..a01029397d4b 100644
--- a/packages/notebook/style/index.css
+++ b/packages/notebook/style/index.css
@@ -6,12 +6,15 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('~@jupyterlab/statusbar/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@lumino/dragdrop/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
-@import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~@jupyterlab/rendermime/style/index.css');
+@import url('~@jupyterlab/documentsearch/style/index.css');
+@import url('~@jupyterlab/codemirror/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
+@import url('~@jupyterlab/toc/style/index.css');
 @import url('~@jupyterlab/cells/style/index.css');
-
+@import url('~@jupyterlab/lsp/style/index.css');
 @import url('./base.css');
diff --git a/packages/notebook/style/index.js b/packages/notebook/style/index.js
index 0ba5db946a0d..2f1b88e98556 100644
--- a/packages/notebook/style/index.js
+++ b/packages/notebook/style/index.js
@@ -6,12 +6,16 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+import '@jupyterlab/statusbar/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/rendermime/style/index.js';
 import '@lumino/dragdrop/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
-import '@jupyterlab/statusbar/style/index.js';
-import '@jupyterlab/rendermime/style/index.js';
+import '@jupyterlab/documentsearch/style/index.js';
+import '@jupyterlab/codemirror/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
+import '@jupyterlab/toc/style/index.js';
 import '@jupyterlab/cells/style/index.js';
+import '@jupyterlab/lsp/style/index.js';
 
 import './base.css';
diff --git a/packages/notebook/style/notebookfooter.css b/packages/notebook/style/notebookfooter.css
new file mode 100644
index 000000000000..0750f90a2d0f
--- /dev/null
+++ b/packages/notebook/style/notebookfooter.css
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+.jp-Notebook-footer {
+  height: 27px;
+  margin-left: calc(
+    var(--jp-cell-prompt-width) + var(--jp-cell-collapser-width) +
+      var(--jp-cell-padding)
+  );
+  width: calc(
+    100% -
+      (
+        var(--jp-cell-prompt-width) + var(--jp-cell-collapser-width) +
+          var(--jp-cell-padding) + var(--jp-cell-padding)
+      )
+  );
+  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
+  color: var(--jp-ui-font-color3);
+  margin-top: 6px;
+  background: none;
+  cursor: pointer;
+}
+
+.jp-Notebook-footer:focus {
+  border-color: var(--jp-cell-editor-active-border-color);
+}
+
+/* For devices that support hovering, hide footer until hover */
+@media (hover: hover) {
+  .jp-Notebook-footer {
+    opacity: 0;
+  }
+
+  .jp-Notebook-footer:focus,
+  .jp-Notebook-footer:hover {
+    opacity: 1;
+  }
+}
diff --git a/packages/notebook/style/toc.css b/packages/notebook/style/toc.css
new file mode 100644
index 000000000000..aa18643d2d00
--- /dev/null
+++ b/packages/notebook/style/toc.css
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/*
+ * Execution indicator
+ */
+.jp-tocItem-content::after {
+  content: '';
+
+  /* Must be identical to form a circle */
+  width: 12px;
+  height: 12px;
+  background: none;
+  border: none;
+  position: absolute;
+  right: 0;
+}
+
+.jp-tocItem-content[data-running='0']::after {
+  border-radius: 50%;
+  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
+  background: none;
+}
+
+.jp-tocItem-content[data-running='1']::after {
+  border-radius: 50%;
+  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
+  background-color: var(--jp-inverse-layout-color3);
+}
+
+.jp-tocItem-content[data-running='0'],
+.jp-tocItem-content[data-running='1'] {
+  margin-right: 12px;
+}
diff --git a/packages/notebook/style/toolbar.css b/packages/notebook/style/toolbar.css
index c1a3259af042..22fc2bd7eca5 100644
--- a/packages/notebook/style/toolbar.css
+++ b/packages/notebook/style/toolbar.css
@@ -19,6 +19,9 @@
 
 .jp-NotebookPanel-toolbar {
   padding: var(--jp-notebook-toolbar-padding);
+
+  /* disable paint containment from lumino 2.0 default strict CSS containment */
+  contain: style size !important;
 }
 
 .jp-Toolbar-item.jp-Notebook-toolbarCellType .jp-select-wrapper.jp-mod-focused {
@@ -51,8 +54,8 @@
   min-height: var(--jp-toolbar-micro-height);
   padding: var(--jp-notebook-toolbar-padding);
   z-index: 1;
-  right: 0px;
-  top: 0px;
+  right: 0;
+  top: 0;
 }
 
 .jp-Toolbar > .jp-Toolbar-responsive-opener {
diff --git a/packages/notebook/test/actions.spec.ts b/packages/notebook/test/actions.spec.ts
index 3514f5e2da2c..c7f0e8d29ddf 100644
--- a/packages/notebook/test/actions.spec.ts
+++ b/packages/notebook/test/actions.spec.ts
@@ -2,19 +2,26 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import { CodeCell, MarkdownCell, RawCell } from '@jupyterlab/cells';
+import { CodeEditor } from '@jupyterlab/codeeditor';
 import { CellType, IMimeBundle } from '@jupyterlab/nbformat';
+import {
+  KernelError,
+  Notebook,
+  NotebookActions,
+  NotebookModel,
+  StaticNotebook
+} from '@jupyterlab/notebook';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
+import { ISharedCodeCell } from '@jupyter/ydoc';
 import {
   acceptDialog,
-  createSessionContext,
   dismissDialog,
+  JupyterServer,
   sleep
-} from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
-import { each } from '@lumino/algorithm';
+} from '@jupyterlab/testing';
 import { JSONArray, JSONObject, UUID } from '@lumino/coreutils';
-import { KernelError, Notebook, NotebookActions, NotebookModel } from '..';
 import * as utils from './utils';
 
 const ERROR_INPUT = 'a = foo';
@@ -24,9 +31,8 @@ const JUPYTER_CELL_MIME = 'application/vnd.jupyter.cells';
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -41,7 +47,6 @@ describe('@jupyterlab/notebook', () => {
     let ipySessionContext: ISessionContext;
 
     beforeAll(async function () {
-      jest.setTimeout(20000);
       rendermime = utils.defaultRenderMime();
 
       async function createContext(options?: Partial<SessionContext.IOptions>) {
@@ -54,13 +59,17 @@ describe('@jupyterlab/notebook', () => {
         createContext(),
         createContext({ kernelPreference: { name: 'ipython' } })
       ]);
-    });
+    }, 30000);
 
     beforeEach(() => {
       widget = new Notebook({
         rendermime,
         contentFactory: utils.createNotebookFactory(),
-        mimeTypeService: utils.mimeTypeService
+        mimeTypeService: utils.mimeTypeService,
+        notebookConfig: {
+          ...StaticNotebook.defaultNotebookConfig,
+          windowingMode: 'none'
+        }
       });
       const model = new NotebookModel();
       model.fromJSON(utils.DEFAULT_CONTENT);
@@ -71,6 +80,7 @@ describe('@jupyterlab/notebook', () => {
     });
 
     afterEach(() => {
+      widget.model?.dispose();
       widget.dispose();
       utils.clipboard.clear();
     });
@@ -117,10 +127,10 @@ describe('@jupyterlab/notebook', () => {
             cellError = error;
           }
         });
-
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        cell.value.text = ERROR_INPUT;
-        widget.model!.cells.push(cell);
+        widget.model!.sharedModel.insertCell(widget.widgets.length, {
+          cell_type: 'code',
+          source: ERROR_INPUT
+        });
         widget.select(widget.widgets[widget.widgets.length - 1]);
         const result = await NotebookActions.run(widget, ipySessionContext);
         expect(result).toBe(false);
@@ -130,7 +140,6 @@ describe('@jupyterlab/notebook', () => {
         expect(cellError!.errorName).toBe('NameError');
         expect(cellError!.errorValue).toBe("name 'foo' is not defined");
         expect(cellError!.traceback).not.toBeNull();
-        await ipySessionContext.session!.kernel!.restart();
       });
     });
 
@@ -139,7 +148,7 @@ describe('@jupyterlab/notebook', () => {
         const cell = widget.activeCell as CodeCell;
         const next = widget.widgets[1] as MarkdownCell;
         let emitted = 0;
-        widget.activeCell!.model.value.text = "print('hello')";
+        widget.activeCell!.model.sharedModel.setSource("print('hello')");
         widget.select(next);
         cell.model.outputs.clear();
         next.rendered = false;
@@ -157,31 +166,34 @@ describe('@jupyterlab/notebook', () => {
       it('should split the active cell into two cells', () => {
         const cell = widget.activeCell!;
         const source = 'thisisasamplestringwithnospaces';
-        cell.model.value.text = source;
+        cell.model.sharedModel.setSource(source);
         const index = widget.activeCellIndex;
-        const editor = cell.editor;
+        const editor = cell.editor as CodeEditor.IEditor;
         editor.setCursorPosition(editor.getPositionAt(10)!);
         NotebookActions.splitCell(widget);
         const cells = widget.model!.cells;
         const newSource =
-          cells.get(index).value.text + cells.get(index + 1).value.text;
+          cells.get(index).sharedModel.getSource() +
+          cells.get(index + 1).sharedModel.getSource();
         expect(newSource).toBe(source);
       });
 
       it('should preserve leading white space in the second cell', () => {
         const cell = widget.activeCell!;
         const source = 'this\n\n   is a test';
-        cell.model.value.text = source;
-        const editor = cell.editor;
+        cell.model.sharedModel.setSource(source);
+        const editor = cell.editor as CodeEditor.IEditor;
         editor.setCursorPosition(editor.getPositionAt(4)!);
         NotebookActions.splitCell(widget);
-        expect(widget.activeCell!.model.value.text).toBe('   is a test');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe(
+          '   is a test'
+        );
       });
 
       it('should clear the existing selection', () => {
-        each(widget.widgets, child => {
+        for (const child of widget.widgets) {
           widget.select(child);
-        });
+        }
         NotebookActions.splitCell(widget);
         for (let i = 0; i < widget.widgets.length; i++) {
           if (i === widget.activeCellIndex) {
@@ -205,82 +217,82 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should create two empty cells if there is no content', () => {
-        widget.activeCell!.model.value.text = '';
+        widget.activeCell!.model.sharedModel.setSource('');
         NotebookActions.splitCell(widget);
-        expect(widget.activeCell!.model.value.text).toBe('');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe('');
         const prev = widget.widgets[0];
-        expect(prev.model.value.text).toBe('');
+        expect(prev.model.sharedModel.getSource()).toBe('');
       });
 
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.splitCell(widget);
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
-      it('should preserve the widget mode', () => {
+      it('should switch the widget mode to edit', () => {
         NotebookActions.splitCell(widget);
-        expect(widget.mode).toBe('command');
+        expect(widget.mode).toBe('edit');
         widget.mode = 'edit';
         NotebookActions.splitCell(widget);
         expect(widget.mode).toBe('edit');
       });
 
       it('should be undo-able', () => {
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         const count = widget.widgets.length;
         NotebookActions.splitCell(widget);
         NotebookActions.undo(widget);
         expect(widget.widgets.length).toBe(count);
         const cell = widget.widgets[0];
-        expect(cell.model.value.text).toBe(source);
+        expect(cell.model.sharedModel.getSource()).toBe(source);
       });
     });
 
     describe('#mergeCells', () => {
       it('should merge the selected cells', () => {
-        let source = widget.activeCell!.model.value.text + '\n\n';
+        let source = widget.activeCell!.model.sharedModel.getSource() + '\n\n';
         let next = widget.widgets[1];
         widget.select(next);
-        source += next.model.value.text + '\n\n';
+        source += next.model.sharedModel.getSource() + '\n\n';
         next = widget.widgets[2];
         widget.select(next);
-        source += next.model.value.text;
+        source += next.model.sharedModel.getSource();
         const count = widget.widgets.length;
         NotebookActions.mergeCells(widget);
         expect(widget.widgets.length).toBe(count - 2);
-        expect(widget.activeCell!.model.value.text).toBe(source);
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.mergeCells(widget);
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
       it('should select the next cell if there is only one cell selected', () => {
-        let source = widget.activeCell!.model.value.text + '\n\n';
+        let source = widget.activeCell!.model.sharedModel.getSource() + '\n\n';
         const next = widget.widgets[1];
-        source += next.model.value.text;
+        source += next.model.sharedModel.getSource();
         NotebookActions.mergeCells(widget);
-        expect(widget.activeCell!.model.value.text).toBe(source);
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should select the previous cell if there is only one cell selected and mergeAbove is true', () => {
         widget.activeCellIndex = 1;
-        let source = widget.activeCell!.model.value.text;
+        let source = widget.activeCell!.model.sharedModel.getSource();
         const previous = widget.widgets[0];
-        source = previous.model.value.text + '\n\n' + source;
+        source = previous.model.sharedModel.getSource() + '\n\n' + source;
         NotebookActions.mergeCells(widget, true);
-        expect(widget.activeCell!.model.value.text).toBe(source);
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should do nothing if first cell selected and mergeAbove is true', () => {
-        let source = widget.activeCell!.model.value.text;
+        let source = widget.activeCell!.model.sharedModel.getSource();
         const cellNumber = widget.widgets.length;
         NotebookActions.mergeCells(widget, true);
         expect(widget.widgets.length).toBe(cellNumber);
-        expect(widget.activeCell!.model.value.text).toBe(source);
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should clear the outputs of a code cell', () => {
@@ -289,6 +301,12 @@ describe('@jupyterlab/notebook', () => {
         expect(cell.model.outputs.length).toBe(0);
       });
 
+      it('should mark cell as trusted as cells without output are trusted', () => {
+        NotebookActions.mergeCells(widget);
+        const cell = widget.activeCell as CodeCell;
+        expect(cell.model.trusted).toBe(true);
+      });
+
       it('should preserve the widget mode', () => {
         widget.mode = 'edit';
         NotebookActions.mergeCells(widget);
@@ -299,13 +317,13 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should be undo-able', () => {
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         const count = widget.widgets.length;
         NotebookActions.mergeCells(widget);
         NotebookActions.undo(widget);
         expect(widget.widgets.length).toBe(count);
         const cell = widget.widgets[0];
-        expect(cell.model.value.text).toBe(source);
+        expect(cell.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should unrender a markdown cell', () => {
@@ -383,7 +401,7 @@ describe('@jupyterlab/notebook', () => {
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.deleteCells(widget);
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
       it('should switch to command mode', () => {
@@ -419,13 +437,13 @@ describe('@jupyterlab/notebook', () => {
       it('should be undo-able', () => {
         const next = widget.widgets[1];
         widget.select(next);
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         const count = widget.widgets.length;
         NotebookActions.deleteCells(widget);
         NotebookActions.undo(widget);
         expect(widget.widgets.length).toBe(count);
         const cell = widget.widgets[0];
-        expect(cell.model.value.text).toBe(source);
+        expect(cell.model.sharedModel.getSource()).toBe(source);
       });
 
       it('should be undo-able if all the cells are deleted', () => {
@@ -433,11 +451,11 @@ describe('@jupyterlab/notebook', () => {
           widget.select(widget.widgets[i]);
         }
         const count = widget.widgets.length;
-        const source = widget.widgets[1].model.value.text;
+        const source = widget.widgets[1].model.sharedModel.getSource();
         NotebookActions.deleteCells(widget);
         NotebookActions.undo(widget);
         expect(widget.widgets.length).toBe(count);
-        expect(widget.widgets[1].model.value.text).toBe(source);
+        expect(widget.widgets[1].model.sharedModel.getSource()).toBe(source);
       });
     });
 
@@ -453,10 +471,10 @@ describe('@jupyterlab/notebook', () => {
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.insertAbove(widget);
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
-      it('should widget mode should be preserved', () => {
+      it('widget mode should be preserved', () => {
         NotebookActions.insertAbove(widget);
         expect(widget.mode).toBe('command');
         widget.mode = 'edit';
@@ -486,7 +504,12 @@ describe('@jupyterlab/notebook', () => {
 
       it('should be the new active cell', () => {
         NotebookActions.insertAbove(widget);
-        expect(widget.activeCell!.model.value.text).toBe('');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe('');
+      });
+
+      it('should mark inserted code cell as trusted', () => {
+        NotebookActions.insertAbove(widget);
+        expect(widget.activeCell!.model.trusted).toBe(true);
       });
     });
 
@@ -502,7 +525,7 @@ describe('@jupyterlab/notebook', () => {
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.insertBelow(widget);
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
       it('should widget mode should be preserved', () => {
@@ -535,7 +558,12 @@ describe('@jupyterlab/notebook', () => {
 
       it('should be the new active cell', () => {
         NotebookActions.insertBelow(widget);
-        expect(widget.activeCell!.model.value.text).toBe('');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe('');
+      });
+
+      it('should mark inserted code cell as trusted', () => {
+        NotebookActions.insertBelow(widget);
+        expect(widget.activeCell!.model.trusted).toBe(true);
       });
     });
 
@@ -552,7 +580,7 @@ describe('@jupyterlab/notebook', () => {
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.changeCellType(widget, 'code');
-        expect(widget.activeCell).toBeUndefined();
+        expect(widget.activeCell).toBeNull();
       });
 
       it('should preserve the widget mode', () => {
@@ -588,6 +616,21 @@ describe('@jupyterlab/notebook', () => {
         const cell = widget.activeCell as MarkdownCell;
         expect(cell.rendered).toBe(false);
       });
+
+      it('should mark code cell as trusted', () => {
+        // Switch to markdown and then to code as otherwise this is no-op.
+        NotebookActions.changeCellType(widget, 'markdown');
+        NotebookActions.changeCellType(widget, 'code');
+        const cell = widget.activeCell as CodeCell;
+        expect(cell.model.trusted).toBe(true);
+      });
+
+      it('should clear trust metadata if switching away from code cell', () => {
+        widget.activeCell!.model.trusted = true;
+        NotebookActions.changeCellType(widget, 'markdown');
+        const cell = widget.activeCell as MarkdownCell;
+        expect(cell.model.metadata.trusted).toBe(undefined);
+      });
     });
 
     describe('#run()', () => {
@@ -640,7 +683,7 @@ describe('@jupyterlab/notebook', () => {
           emitted += 1;
         });
         widget.select(other);
-        other.model.value.text = 'a = 1';
+        other.model.sharedModel.setSource('a = 1');
         const result = await NotebookActions.run(widget, sessionContext);
         expect(result).toBe(true);
         expect(widget.activeCell).toBe(other);
@@ -677,10 +720,20 @@ describe('@jupyterlab/notebook', () => {
         NotebookActions.selectionExecuted.connect(() => {
           emitted += 1;
         });
-        const result = await NotebookActions.run(widget, undefined);
+        const result = await NotebookActions.run(
+          widget,
+          {
+            isTerminating: false,
+            pendingInput: false,
+            hasNoKernel: true,
+            kernelPreference: { autoStartDefault: false },
+            startKernel: () => Promise.resolve(true)
+          } as ISessionContext,
+          { selectKernel: () => Promise.resolve() } as any
+        );
         expect(result).toBe(true);
         const cell = widget.activeCell as CodeCell;
-        expect(cell.model.executionCount).toBeNull();
+        expect(cell.model.executionCount).toBe(null);
         expect(emitted).toBe(1);
       });
 
@@ -689,17 +742,20 @@ describe('@jupyterlab/notebook', () => {
         NotebookActions.selectionExecuted.connect(() => {
           emitted += 1;
         });
-        let cell = widget.model!.contentFactory.createCodeCell({});
-        cell.value.text = ERROR_INPUT;
-        widget.model!.cells.insert(2, cell);
+        widget.model!.sharedModel.insertCell(2, {
+          cell_type: 'code',
+          source: ERROR_INPUT
+        });
         widget.select(widget.widgets[2]);
-        cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.push(cell);
+        const cell = widget.model!.sharedModel.insertCell(
+          widget.widgets.length,
+          { cell_type: 'code' }
+        ) as ISharedCodeCell;
         widget.select(widget.widgets[widget.widgets.length - 1]);
         const result = await NotebookActions.run(widget, ipySessionContext);
+        await sleep(400);
         expect(result).toBe(false);
-        expect(cell.executionCount).toBeNull();
-        await ipySessionContext.session!.kernel!.restart();
+        expect(cell.execution_count).toBeNull();
         expect(emitted).toBe(1);
       });
 
@@ -708,20 +764,20 @@ describe('@jupyterlab/notebook', () => {
         NotebookActions.selectionExecuted.connect(() => {
           emitted += 1;
         });
-        const cell = widget.model!.contentFactory.createMarkdownCell({});
-        widget.model!.cells.push(cell);
+        widget.model!.sharedModel.insertCell(widget.widgets.length, {
+          cell_type: 'markdown'
+        });
         const child = widget.widgets[widget.widgets.length - 1] as MarkdownCell;
         child.rendered = false;
         widget.select(child);
-        widget.activeCell!.model.value.text = ERROR_INPUT;
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
         const result = await NotebookActions.run(widget, ipySessionContext);
         // Markdown rendering is asynchronous, but the cell
         // provides no way to hook into that. Sleep here
         // to make sure it finishes.
-        await sleep(100);
+        await sleep(400);
         expect(result).toBe(false);
         expect(child.rendered).toBe(true);
-        await ipySessionContext.session!.kernel!.restart();
         expect(emitted).toBe(1);
       });
     });
@@ -760,7 +816,6 @@ describe('@jupyterlab/notebook', () => {
         );
         expect(result).toBe(false);
         expect(widget.isSelected(widget.widgets[0])).toBe(false);
-        await ipySessionContext.session!.kernel!.restart();
       });
 
       it('should change to command mode', async () => {
@@ -794,6 +849,7 @@ describe('@jupyterlab/notebook', () => {
         expect(result).toBe(true);
         expect(widget.widgets.length).toBe(count + 1);
         expect(widget.activeCell).toBeInstanceOf(CodeCell);
+        expect(widget.activeCell!.model.trusted).toBe(true);
         expect(widget.mode).toBe('edit');
       });
 
@@ -810,21 +866,22 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should stop executing code cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.push(cell);
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
+        const cell = widget.model!.sharedModel.insertCell(
+          widget.widgets.length,
+          { cell_type: 'code' }
+        ) as ISharedCodeCell;
         widget.select(widget.widgets[widget.widgets.length - 1]);
         const result = await NotebookActions.runAndAdvance(
           widget,
           ipySessionContext
         );
         expect(result).toBe(false);
-        expect(cell.executionCount).toBeNull();
-        await ipySessionContext.session!.kernel!.restart();
+        expect(cell.execution_count).toBeNull();
       });
 
       it('should render all markdown cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
         const cell = widget.widgets[1] as MarkdownCell;
         cell.rendered = false;
         widget.select(cell);
@@ -835,11 +892,10 @@ describe('@jupyterlab/notebook', () => {
         // Markdown rendering is asynchronous, but the cell
         // provides no way to hook into that. Sleep here
         // to make sure it finishes.
-        await sleep(100);
+        await sleep(400);
         expect(result).toBe(false);
         expect(cell.rendered).toBe(true);
         expect(widget.activeCellIndex).toBe(2);
-        await ipySessionContext.session!.kernel!.restart();
       });
     });
 
@@ -882,7 +938,7 @@ describe('@jupyterlab/notebook', () => {
       it('should insert a new code cell in edit mode after the last selected cell', async () => {
         const next = widget.widgets[2];
         widget.select(next);
-        next.model.value.text = 'a = 1';
+        next.model.sharedModel.setSource('a = 1');
         const count = widget.widgets.length;
         const result = await NotebookActions.runAndInsert(
           widget,
@@ -890,6 +946,7 @@ describe('@jupyterlab/notebook', () => {
         );
         expect(result).toBe(true);
         expect(widget.activeCell).toBeInstanceOf(CodeCell);
+        expect(widget.activeCell!.model.trusted).toBe(true);
         expect(widget.mode).toBe('edit');
         expect(widget.widgets.length).toBe(count + 1);
       });
@@ -897,7 +954,7 @@ describe('@jupyterlab/notebook', () => {
       it('should allow an undo of the cell insert', async () => {
         const next = widget.widgets[2];
         widget.select(next);
-        next.model.value.text = 'a = 1';
+        next.model.sharedModel.setSource('a = 1');
         const count = widget.widgets.length;
         const result = await NotebookActions.runAndInsert(
           widget,
@@ -909,21 +966,23 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should stop executing code cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.push(cell);
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
+        const cell = widget.model!.sharedModel.insertCell(
+          widget.widgets.length,
+          { cell_type: 'code' }
+        ) as ISharedCodeCell;
         widget.select(widget.widgets[widget.widgets.length - 1]);
         const result = await NotebookActions.runAndInsert(
           widget,
           ipySessionContext
         );
+        await sleep(400);
         expect(result).toBe(false);
-        expect(cell.executionCount).toBeNull();
-        await ipySessionContext.session!.kernel!.restart();
+        expect(cell.execution_count).toBeNull();
       });
 
       it('should render all markdown cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
         const cell = widget.widgets[1] as MarkdownCell;
         cell.rendered = false;
         widget.select(cell);
@@ -934,18 +993,17 @@ describe('@jupyterlab/notebook', () => {
         // Markdown rendering is asynchronous, but the cell
         // provides no way to hook into that. Sleep here
         // to make sure it finishes.
-        await sleep(100);
+        await sleep(500);
         expect(result).toBe(false);
         expect(cell.rendered).toBe(true);
         expect(widget.activeCellIndex).toBe(2);
-        await ipySessionContext.session!.kernel!.restart();
       });
     });
 
     describe('#runAll()', () => {
       beforeEach(() => {
         // Make sure all cells have valid code.
-        widget.widgets[2].model.value.text = 'a = 1';
+        widget.widgets[2].model.sharedModel.setSource('a = 1');
       });
 
       it('should run all of the cells in the notebook', async () => {
@@ -986,28 +1044,29 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should stop executing code cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.push(cell);
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
+        const cell = widget.model!.sharedModel.insertCell(
+          widget.widgets.length,
+          { cell_type: 'code' }
+        ) as ISharedCodeCell;
+        widget.select(widget.widgets[widget.widgets.length - 1]);
         const result = await NotebookActions.runAll(widget, ipySessionContext);
         expect(result).toBe(false);
-        expect(cell.executionCount).toBeNull();
+        expect(cell.execution_count).toBeNull();
         expect(widget.activeCellIndex).toBe(widget.widgets.length - 1);
-        await ipySessionContext.session!.kernel!.restart();
       });
 
       it('should render all markdown cells on an error', async () => {
-        widget.activeCell!.model.value.text = ERROR_INPUT;
+        widget.activeCell!.model.sharedModel.setSource(ERROR_INPUT);
         const cell = widget.widgets[1] as MarkdownCell;
         cell.rendered = false;
         const result = await NotebookActions.runAll(widget, ipySessionContext);
         // Markdown rendering is asynchronous, but the cell
         // provides no way to hook into that. Sleep here
         // to make sure it finishes.
-        await sleep(100);
+        await sleep(400);
         expect(result).toBe(false);
         expect(cell.rendered).toBe(true);
-        await ipySessionContext.session!.kernel!.restart();
       });
     });
 
@@ -1217,6 +1276,13 @@ describe('@jupyterlab/notebook', () => {
         expect(widget.activeCellIndex).toBe(0);
       });
 
+      it('should move the last cell up', () => {
+        const lastIndex = widget.model!.cells.length - 1;
+        widget.activeCellIndex = lastIndex;
+        NotebookActions.moveUp(widget);
+        expect(widget.activeCellIndex).toBe(lastIndex - 1);
+      });
+
       it('should be a no-op if there is no model', () => {
         widget.model = null;
         NotebookActions.moveUp(widget);
@@ -1231,11 +1297,11 @@ describe('@jupyterlab/notebook', () => {
 
       it('should be undo-able', () => {
         widget.activeCellIndex++;
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         NotebookActions.moveUp(widget);
-        expect(widget.model!.cells.get(0).value.text).toBe(source);
+        expect(widget.model!.cells.get(0).sharedModel.getSource()).toBe(source);
         NotebookActions.undo(widget);
-        expect(widget.model!.cells.get(1).value.text).toBe(source);
+        expect(widget.model!.cells.get(1).sharedModel.getSource()).toBe(source);
       });
     });
 
@@ -1262,11 +1328,11 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should be undo-able', () => {
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         NotebookActions.moveDown(widget);
-        expect(widget.model!.cells.get(1).value.text).toBe(source);
+        expect(widget.model!.cells.get(1).sharedModel.getSource()).toBe(source);
         NotebookActions.undo(widget);
-        expect(widget.model!.cells.get(0).value.text).toBe(source);
+        expect(widget.model!.cells.get(0).sharedModel.getSource()).toBe(source);
       });
     });
 
@@ -1295,7 +1361,7 @@ describe('@jupyterlab/notebook', () => {
       it('should delete metadata.deletable', () => {
         const next = widget.widgets[1];
         widget.select(next);
-        next.model.metadata.set('deletable', false);
+        next.model.setMetadata('deletable', false);
         NotebookActions.copy(widget);
         const data = utils.clipboard.getData(JUPYTER_CELL_MIME) as JSONArray;
         data.map(cell => {
@@ -1328,10 +1394,10 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should be undo-able', () => {
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         NotebookActions.cut(widget);
         NotebookActions.undo(widget);
-        expect(widget.widgets[0].model.value.text).toBe(source);
+        expect(widget.widgets[0].model.sharedModel.getSource()).toBe(source);
       });
 
       it('should add a new code cell if all cells were cut', async () => {
@@ -1347,7 +1413,7 @@ describe('@jupyterlab/notebook', () => {
 
     describe('#paste()', () => {
       it('should paste cells from a utils.clipboard', () => {
-        const source = widget.activeCell!.model.value.text;
+        const source = widget.activeCell!.model.sharedModel.getSource();
         const next = widget.widgets[1];
         widget.select(next);
         const count = widget.widgets.length;
@@ -1355,7 +1421,7 @@ describe('@jupyterlab/notebook', () => {
         widget.activeCellIndex = 1;
         NotebookActions.paste(widget);
         expect(widget.widgets.length).toBe(count);
-        expect(widget.widgets[2].model.value.text).toBe(source);
+        expect(widget.widgets[2].model.sharedModel.getSource()).toBe(source);
         expect(widget.activeCellIndex).toBe(3);
       });
 
@@ -1417,7 +1483,7 @@ describe('@jupyterlab/notebook', () => {
       it('should be a no-op if there are no cell actions to undo', () => {
         const count = widget.widgets.length;
         NotebookActions.deleteCells(widget);
-        widget.model!.cells.clearUndo();
+        widget.model!.sharedModel.clearUndoHistory();
         NotebookActions.undo(widget);
         expect(widget.widgets.length).toBe(count - 1);
       });
@@ -1457,22 +1523,24 @@ describe('@jupyterlab/notebook', () => {
 
     describe('#toggleAllLineNumbers()', () => {
       it('should toggle line numbers on all cells', () => {
-        const state = widget.activeCell!.editor.getOption('lineNumbers');
+        const state = widget.activeCell!.editor!.getOption('lineNumbers');
         NotebookActions.toggleAllLineNumbers(widget);
         for (let i = 0; i < widget.widgets.length; i++) {
-          const lineNumbers = widget.widgets[i].editor.getOption('lineNumbers');
+          const lineNumbers =
+            widget.widgets[i].editor!.getOption('lineNumbers');
           expect(lineNumbers).toBe(!state);
         }
       });
 
       it('should be based on the state of the active cell', () => {
-        const state = widget.activeCell!.editor.getOption('lineNumbers');
+        const state = widget.activeCell!.editor!.getOption('lineNumbers');
         for (let i = 1; i < widget.widgets.length; i++) {
-          widget.widgets[i].editor.setOption('lineNumbers', !state);
+          widget.widgets[i].editor!.setOption('lineNumbers', !state);
         }
         NotebookActions.toggleAllLineNumbers(widget);
         for (let i = 0; i < widget.widgets.length; i++) {
-          const lineNumbers = widget.widgets[i].editor.getOption('lineNumbers');
+          const lineNumbers =
+            widget.widgets[i].editor!.getOption('lineNumbers');
           expect(lineNumbers).toBe(!state);
         }
       });
@@ -1507,8 +1575,10 @@ describe('@jupyterlab/notebook', () => {
         NotebookActions.clearOutputs(widget);
         let cell = widget.widgets[0] as CodeCell;
         expect(cell.model.outputs.length).toBe(0);
+        expect(cell.model.trusted).toBe(true);
         cell = widget.widgets[index] as CodeCell;
         expect(cell.model.outputs.length).toBe(0);
+        expect(cell.model.trusted).toBe(true);
       });
 
       it('should preserve the widget mode', () => {
@@ -1534,7 +1604,9 @@ describe('@jupyterlab/notebook', () => {
         for (let i = 0; i < widget.widgets.length; i++) {
           const cell = widget.widgets[i];
           if (cell instanceof CodeCell) {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(cell.model.outputs.length).toBe(0);
+            expect(cell.model.trusted).toBe(true);
           }
         }
       });
@@ -1559,8 +1631,10 @@ describe('@jupyterlab/notebook', () => {
         const next = widget.widgets[1];
         widget.select(next);
         NotebookActions.setMarkdownHeader(widget, 2);
-        expect(widget.activeCell!.model.value.text.slice(0, 3)).toBe('## ');
-        expect(next.model.value.text.slice(0, 3)).toBe('## ');
+        expect(
+          widget.activeCell!.model.sharedModel.getSource().slice(0, 3)
+        ).toBe('## ');
+        expect(next.model.sharedModel.getSource().slice(0, 3)).toBe('## ');
       });
 
       it('should convert the cells to markdown type', () => {
@@ -1570,9 +1644,13 @@ describe('@jupyterlab/notebook', () => {
 
       it('should be clamped between 1 and 6', () => {
         NotebookActions.setMarkdownHeader(widget, -1);
-        expect(widget.activeCell!.model.value.text.slice(0, 2)).toBe('# ');
+        expect(
+          widget.activeCell!.model.sharedModel.getSource().slice(0, 2)
+        ).toBe('# ');
         NotebookActions.setMarkdownHeader(widget, 10);
-        expect(widget.activeCell!.model.value.text.slice(0, 7)).toBe('###### ');
+        expect(
+          widget.activeCell!.model.sharedModel.getSource().slice(0, 7)
+        ).toBe('###### ');
       });
 
       it('should be a no-op if there is no model', () => {
@@ -1582,15 +1660,15 @@ describe('@jupyterlab/notebook', () => {
       });
 
       it('should replace an existing header', () => {
-        widget.activeCell!.model.value.text = '# foo';
+        widget.activeCell!.model.sharedModel.setSource('# foo');
         NotebookActions.setMarkdownHeader(widget, 2);
-        expect(widget.activeCell!.model.value.text).toBe('## foo');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe('## foo');
       });
 
       it('should replace leading white space', () => {
-        widget.activeCell!.model.value.text = '      foo';
+        widget.activeCell!.model.sharedModel.setSource('      foo');
         NotebookActions.setMarkdownHeader(widget, 2);
-        expect(widget.activeCell!.model.value.text).toBe('## foo');
+        expect(widget.activeCell!.model.sharedModel.getSource()).toBe('## foo');
       });
 
       it('should unrender the cells', () => {
@@ -1624,7 +1702,7 @@ describe('@jupyterlab/notebook', () => {
 
       it('should be a no-op if the model is `null`', async () => {
         widget.model = null;
-        await NotebookActions.trust(widget);
+        await expect(NotebookActions.trust(widget)).resolves.not.toThrow();
       });
 
       it('should show a dialog if all cells are trusted', async () => {
@@ -1637,7 +1715,7 @@ describe('@jupyterlab/notebook', () => {
         }
         const promise = NotebookActions.trust(widget);
         await acceptDialog();
-        await promise;
+        await expect(promise).resolves.not.toThrow();
       });
     });
   });
diff --git a/packages/notebook/test/context.spec.ts b/packages/notebook/test/context.spec.ts
new file mode 100644
index 000000000000..5ba970d6cc71
--- /dev/null
+++ b/packages/notebook/test/context.spec.ts
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import {
+  DEFAULT_CONTENT,
+  initNotebookContext
+} from '@jupyterlab/notebook/lib/testutils';
+import { ServiceManagerMock } from '@jupyterlab/services/lib/testutils';
+import type { ServiceManager } from '@jupyterlab/services';
+
+describe('Context#ready', () => {
+  let manager: ServiceManager.IManager;
+
+  beforeAll(() => {
+    manager = new ServiceManagerMock();
+    return manager.ready;
+  });
+
+  it('should initialize the model when the file is saved for the first time', async () => {
+    const context = await initNotebookContext({ manager });
+    context.model.fromJSON(DEFAULT_CONTENT);
+    expect(context.model.sharedModel.canUndo()).toBe(true);
+    await context.initialize(true);
+    await context.ready;
+    expect(context.model.sharedModel.canUndo()).toBe(false);
+  });
+
+  it('should initialize the model when the file is reverted for the first time', async () => {
+    const context = await initNotebookContext({ manager });
+    await manager.contents.save(context.path, {
+      type: 'notebook',
+      format: 'json',
+      content: DEFAULT_CONTENT
+    });
+    context.model.fromJSON(DEFAULT_CONTENT);
+    expect(context.model.sharedModel.canUndo()).toBe(true);
+    await context.initialize(false);
+    await context.ready;
+    expect(context.model.sharedModel.canUndo()).toBe(false);
+  });
+});
diff --git a/testutils/default-45.json b/packages/notebook/test/default-45.json
similarity index 100%
rename from testutils/default-45.json
rename to packages/notebook/test/default-45.json
diff --git a/packages/notebook/test/default-toolbar.spec.ts b/packages/notebook/test/default-toolbar.spec.ts
index 927401606beb..5767ed292a4b 100644
--- a/packages/notebook/test/default-toolbar.spec.ts
+++ b/packages/notebook/test/default-toolbar.spec.ts
@@ -9,7 +9,7 @@ import {
   framePromise,
   signalToPromise,
   sleep
-} from '@jupyterlab/testutils';
+} from '@jupyterlab/testing';
 import { PromiseDelegate } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 import { simulate } from 'simulate-event';
@@ -18,7 +18,7 @@ import {
   NotebookActions,
   NotebookPanel,
   ToolbarItems
-} from '..';
+} from '@jupyterlab/notebook';
 import * as utils from './utils';
 
 const JUPYTER_CELL_MIME = 'application/vnd.jupyter.cells';
@@ -32,6 +32,7 @@ describe('@jupyterlab/notebook', () => {
       beforeEach(async () => {
         context = await utils.createMockContext();
         panel = utils.createNotebookPanel(context);
+        panel.content.notebookConfig.windowingMode = 'none';
         context.model.fromJSON(utils.DEFAULT_CONTENT);
       });
 
@@ -46,8 +47,9 @@ describe('@jupyterlab/notebook', () => {
           Widget.attach(button, document.body);
           const promise = signalToPromise(context.fileChanged);
           await framePromise();
+          await button.renderPromise;
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
-          await promise;
+          await expect(promise).resolves.not.toThrow();
           button.dispose();
         });
 
@@ -66,6 +68,7 @@ describe('@jupyterlab/notebook', () => {
           const button = ToolbarItems.createInsertButton(panel);
           Widget.attach(button, document.body);
           await framePromise();
+          await button.renderPromise;
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
           expect(panel.content.activeCellIndex).toBe(1);
           expect(panel.content.activeCell).toBeInstanceOf(CodeCell);
@@ -87,6 +90,7 @@ describe('@jupyterlab/notebook', () => {
           const count = panel.content.widgets.length;
           Widget.attach(button, document.body);
           await framePromise();
+          await button.renderPromise;
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
           expect(panel.content.widgets.length).toBe(count - 1);
           expect(utils.clipboard.hasData(JUPYTER_CELL_MIME)).toBe(true);
@@ -108,6 +112,7 @@ describe('@jupyterlab/notebook', () => {
           const count = panel.content.widgets.length;
           Widget.attach(button, document.body);
           await framePromise();
+          await button.renderPromise;
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
           expect(panel.content.widgets.length).toBe(count);
           expect(utils.clipboard.hasData(JUPYTER_CELL_MIME)).toBe(true);
@@ -131,6 +136,7 @@ describe('@jupyterlab/notebook', () => {
           const count = panel.content.widgets.length;
           Widget.attach(button, document.body);
           await framePromise();
+          await button.renderPromise;
           NotebookActions.copy(panel.content);
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
           await sleep();
@@ -154,12 +160,14 @@ describe('@jupyterlab/notebook', () => {
           const item = ToolbarItems.createCellTypeItem(panel);
           Widget.attach(item, document.body);
           await framePromise();
+          await item.renderPromise;
           const node = item.node.getElementsByTagName(
             'select'
           )[0] as HTMLSelectElement;
           expect(node.value).toBe('code');
           panel.content.activeCellIndex++;
           await framePromise();
+          await item.renderPromise;
           expect(node.value).toBe('markdown');
           item.dispose();
         });
@@ -168,12 +176,14 @@ describe('@jupyterlab/notebook', () => {
           const item = ToolbarItems.createCellTypeItem(panel);
           Widget.attach(item, document.body);
           await framePromise();
+          await item.renderPromise;
           const node = item.node.getElementsByTagName(
             'select'
           )[0] as HTMLSelectElement;
           expect(node.value).toBe('code');
           panel.content.select(panel.content.widgets[1]);
           await framePromise();
+          await item.renderPromise;
           expect(node.value).toBe('-');
           item.dispose();
         });
@@ -182,14 +192,15 @@ describe('@jupyterlab/notebook', () => {
           const item = ToolbarItems.createCellTypeItem(panel);
           Widget.attach(item, document.body);
           await framePromise();
+          await item.renderPromise;
           const node = item.node.getElementsByTagName(
             'select'
           )[0] as HTMLSelectElement;
           expect(node.value).toBe('code');
-          const cell = panel.model!.contentFactory.createCodeCell({});
-          panel.model!.cells.insert(1, cell);
+          panel.model!.sharedModel.insertCell(0, { cell_type: 'code' });
           panel.content.select(panel.content.widgets[1]);
           await framePromise();
+          await item.renderPromise;
           expect(node.value).toBe('code');
           item.dispose();
         });
@@ -250,6 +261,7 @@ describe('@jupyterlab/notebook', () => {
           widget.select(mdCell);
 
           Widget.attach(button, document.body);
+          await button.renderPromise;
           await context.sessionContext.session!.kernel!.info;
 
           const delegate = new PromiseDelegate();
@@ -259,7 +271,7 @@ describe('@jupyterlab/notebook', () => {
             }
           });
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
-          await delegate.promise;
+          await expect(delegate.promise).resolves.not.toThrow();
           button.dispose();
         });
 
@@ -283,6 +295,7 @@ describe('@jupyterlab/notebook', () => {
           mdCell.rendered = false;
 
           Widget.attach(button, document.body);
+          await button.renderPromise;
           await panel.sessionContext.ready;
           const delegate = new PromiseDelegate();
           panel.sessionContext.iopubMessage.connect((_, msg) => {
@@ -292,7 +305,7 @@ describe('@jupyterlab/notebook', () => {
           });
           simulate(button.node.firstChild as HTMLElement, 'mousedown');
           await acceptDialog();
-          await delegate.promise;
+          await expect(delegate.promise).resolves.not.toThrow();
           button.dispose();
         });
 
diff --git a/packages/notebook/test/empty.json b/packages/notebook/test/empty.json
new file mode 100644
index 000000000000..981bb7966382
--- /dev/null
+++ b/packages/notebook/test/empty.json
@@ -0,0 +1,25 @@
+{
+  "cells": [],
+  "metadata": {
+    "anaconda-cloud": {},
+    "kernelspec": {
+      "display_name": "Python [default]",
+      "language": "python",
+      "name": "python3"
+    },
+    "language_info": {
+      "codemirror_mode": {
+        "name": "ipython",
+        "version": 3
+      },
+      "file_extension": ".py",
+      "mimetype": "text/x-python",
+      "name": "python",
+      "nbconvert_exporter": "python",
+      "pygments_lexer": "ipython3",
+      "version": "3.5.2"
+    }
+  },
+  "nbformat": 4,
+  "nbformat_minor": 5
+}
diff --git a/packages/notebook/test/executionindicator.spec.tsx b/packages/notebook/test/executionindicator.spec.tsx
index 509345270ce2..6098371a1984 100644
--- a/packages/notebook/test/executionindicator.spec.tsx
+++ b/packages/notebook/test/executionindicator.spec.tsx
@@ -2,20 +2,19 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
-import { createSessionContext } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
+import { JupyterServer } from '@jupyterlab/testing';
 import {
   ExecutionIndicator,
   ExecutionIndicatorComponent,
   Notebook,
   NotebookActions,
   NotebookModel
-} from '..';
-import * as utils from './utils';
+} from '@jupyterlab/notebook';
 import React from 'react';
 import ReactDOMServer from 'react-dom/server';
-import { PromiseDelegate } from '@lumino/coreutils';
+import * as utils from './utils';
 
 const fastCellModel = {
   cell_type: 'code',
@@ -30,7 +29,7 @@ const slowCellModel = {
   execution_count: 1,
   metadata: { tags: [] },
   outputs: [],
-  source: ['import time\n', 'time.sleep(3)\n']
+  source: ['import time\n', 'time.sleep(3.05)\n']
 };
 
 const killerCellModel = {
@@ -44,9 +43,8 @@ const killerCellModel = {
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -87,7 +85,11 @@ describe('@jupyterlab/notebook', () => {
       widget = new Notebook({
         rendermime,
         contentFactory: utils.createNotebookFactory(),
-        mimeTypeService: utils.mimeTypeService
+        mimeTypeService: utils.mimeTypeService,
+        notebookConfig: {
+          ...Notebook.defaultNotebookConfig,
+          windowingMode: 'none'
+        }
       });
       const model = new NotebookModel();
       const modelJson = {
@@ -113,8 +115,10 @@ describe('@jupyterlab/notebook', () => {
     });
 
     afterEach(() => {
+      widget.model?.dispose();
       widget.dispose();
       utils.clipboard.clear();
+      indicator.model.dispose();
       indicator.dispose();
     });
 
@@ -130,8 +134,7 @@ describe('@jupyterlab/notebook', () => {
         let scheduledCell: number | undefined = 0;
 
         indicator.model.stateChanged.connect(state => {
-          scheduledCell =
-            state.executionState(widget)?.scheduledCellNumber ?? 0;
+          scheduledCell = state.executionState(widget)!.scheduledCellNumber;
         });
 
         await NotebookActions.run(widget, ipySessionContext);
@@ -142,15 +145,10 @@ describe('@jupyterlab/notebook', () => {
         let elapsedTime: number | undefined = 0;
 
         indicator.model.stateChanged.connect(state => {
-          elapsedTime = state.executionState(widget)?.totalTime ?? 0;
+          elapsedTime = state.executionState(widget)!.totalTime;
         });
 
         await NotebookActions.run(widget, ipySessionContext);
-        const delegate = new PromiseDelegate<void>();
-        setTimeout(() => {
-          delegate.resolve();
-        }, 150);
-        await delegate.promise;
         expect(elapsedTime).toBeGreaterThanOrEqual(6);
       });
 
@@ -158,18 +156,10 @@ describe('@jupyterlab/notebook', () => {
         let tick: Array<number> = [];
 
         indicator.model.stateChanged.connect(state => {
-          const indicatorState = state.executionState(widget);
-          if (indicatorState) {
-            tick.push(indicatorState.totalTime);
-          }
+          tick.push(state.executionState(widget)!.totalTime);
         });
 
         await NotebookActions.run(widget, ipySessionContext);
-        const delegate = new PromiseDelegate<void>();
-        setTimeout(() => {
-          delegate.resolve();
-        }, 150);
-        await delegate.promise;
         expect(tick).toEqual(expect.arrayContaining([1, 2, 3, 4, 5, 6, 6]));
       });
 
@@ -257,7 +247,7 @@ describe('@jupyterlab/notebook', () => {
         />
       );
       const htmlElement = ReactDOMServer.renderToString(element);
-      expect(htmlElement).toContain('<div data-reactroot=""></div>');
+      expect(htmlElement).toContain('<div></div>');
     });
     it('Should render a filled circle with 0/2 cell executed message', () => {
       defaultState.scheduledCellNumber = 2;
diff --git a/packages/notebook/test/model.spec.ts b/packages/notebook/test/model.spec.ts
index 16422925e878..819e88eb9e43 100644
--- a/packages/notebook/test/model.spec.ts
+++ b/packages/notebook/test/model.spec.ts
@@ -1,12 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CodeCellModel } from '@jupyterlab/cells';
 import * as nbformat from '@jupyterlab/nbformat';
-import { ModelDB } from '@jupyterlab/observables';
-import { acceptDialog } from '@jupyterlab/testutils';
-import { ArrayExt, toArray } from '@lumino/algorithm';
-import { NotebookModel } from '..';
+import { acceptDialog } from '@jupyterlab/testing';
+import { NotebookModel } from '@jupyterlab/notebook';
 import * as utils from './utils';
 
 describe('@jupyterlab/notebook', () => {
@@ -19,44 +16,36 @@ describe('@jupyterlab/notebook', () => {
 
       it('should accept an optional language preference', () => {
         const model = new NotebookModel({ languagePreference: 'python' });
-        const lang = model.metadata.get(
+        const lang = model.getMetadata(
           'language_info'
         ) as nbformat.ILanguageInfoMetadata;
         expect(lang.name).toBe('python');
       });
-
-      it('should accept an optional factory', () => {
-        const contentFactory = new NotebookModel.ContentFactory({});
-        const model = new NotebookModel({ contentFactory });
-        expect(model.contentFactory.codeCellContentFactory).toBe(
-          contentFactory.codeCellContentFactory
-        );
-      });
     });
 
     describe('#metadataChanged', () => {
       it('should be emitted when a metadata field changes', () => {
         const model = new NotebookModel();
         let called = false;
-        model.metadata.changed.connect((sender, args) => {
-          expect(sender).toBe(model.metadata);
+        model.metadataChanged.connect((sender, args) => {
+          expect(sender).toBe(model);
           expect(args.key).toBe('foo');
           expect(args.oldValue).toBeUndefined();
           expect(args.newValue).toBe(1);
           called = true;
         });
-        model.metadata.set('foo', 1);
+        model.setMetadata('foo', 1);
         expect(called).toBe(true);
       });
 
       it('should not be emitted when the value does not change', () => {
         const model = new NotebookModel();
         let called = false;
-        model.metadata.set('foo', 1);
-        model.metadata.changed.connect(() => {
+        model.setMetadata('foo', 1);
+        model.metadataChanged.connect(() => {
           called = true;
         });
-        model.metadata.set('foo', 1);
+        model.setMetadata('foo', 1);
         expect(called).toBe(false);
       });
     });
@@ -64,24 +53,23 @@ describe('@jupyterlab/notebook', () => {
     describe('#cells', () => {
       it('should be reset when loading from disk', () => {
         const model = new NotebookModel();
-        const cell = model.contentFactory.createCodeCell({});
-        model.cells.push(cell);
+        model.sharedModel.insertCell(0, { cell_type: 'code' });
         model.fromJSON(utils.DEFAULT_CONTENT);
-        expect(ArrayExt.firstIndexOf(toArray(model.cells), cell)).toBe(-1);
         expect(model.cells.length).toBe(7);
       });
 
       it('should allow undoing a change', () => {
         const model = new NotebookModel();
-        const cell = model.contentFactory.createCodeCell({});
-        cell.value.text = 'foo';
+        const cell = model.sharedModel.insertCell(0, {
+          cell_type: 'code',
+          source: 'foo'
+        });
         const cellJSON = cell.toJSON();
-        model.cells.push(cell);
-        model.cells.clearUndo();
-        model.cells.remove(model.cells.length - 1);
-        model.cells.undo();
+        model.sharedModel.clearUndoHistory();
+        model.sharedModel.deleteCell(0);
+        model.sharedModel.undo();
         expect(model.cells.length).toBe(1);
-        expect(model.cells.get(0).value.text).toBe('foo');
+        expect(model.cells.get(0).sharedModel.getSource()).toBe('foo');
         // Previous model matches the restored model
         expect(model.cells.get(0).toJSON()).toEqual(cellJSON);
       });
@@ -89,45 +77,42 @@ describe('@jupyterlab/notebook', () => {
       describe('cells `changed` signal', () => {
         it('should emit a `contentChanged` signal upon cell addition', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
           let called = false;
           model.contentChanged.connect(() => {
             called = true;
           });
-          model.cells.push(cell);
+          model.sharedModel.insertCell(0, { cell_type: 'code' });
           expect(called).toBe(true);
         });
 
         it('should emit a `contentChanged` signal upon cell removal', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
-          model.cells.push(cell);
+          model.sharedModel.insertCell(0, { cell_type: 'code' });
           let called = false;
           model.contentChanged.connect(() => {
             called = true;
           });
-          model.cells.remove(0);
+          model.sharedModel.deleteCell(0);
           expect(called).toBe(true);
         });
 
         it('should emit a `contentChanged` signal upon cell move', () => {
           const model = new NotebookModel();
-          const cell0 = model.contentFactory.createCodeCell({});
-          const cell1 = model.contentFactory.createCodeCell({});
-          model.cells.push(cell0);
-          model.cells.push(cell1);
+          model.sharedModel.insertCells(0, [
+            { cell_type: 'code' },
+            { cell_type: 'code' }
+          ]);
           let called = false;
           model.contentChanged.connect(() => {
             called = true;
           });
-          model.cells.move(0, 1);
+          model.sharedModel.moveCell(0, 1);
           expect(called).toBe(true);
         });
 
         it('should set the dirty flag', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
-          model.cells.push(cell);
+          model.sharedModel.insertCell(0, { cell_type: 'code' });
           expect(model.dirty).toBe(true);
         });
       });
@@ -135,43 +120,33 @@ describe('@jupyterlab/notebook', () => {
       describe('cell `changed` signal', () => {
         it('should be called when a cell content changes', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
-          model.cells.push(cell);
-          cell.value.text = 'foo';
+          const cell = model.sharedModel.insertCell(0, { cell_type: 'code' });
+          expect(() => {
+            cell.setSource('foo');
+          }).not.toThrow();
         });
 
         it('should emit the `contentChanged` signal', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
-          model.cells.push(cell);
+          model.sharedModel.insertCell(0, { cell_type: 'code' });
           let called = false;
           model.contentChanged.connect(() => {
             called = true;
           });
-          model.metadata.set('foo', 'bar');
+          model.setMetadata('foo', 'bar');
           expect(called).toBe(true);
         });
 
         it('should set the dirty flag', () => {
           const model = new NotebookModel();
-          const cell = model.contentFactory.createCodeCell({});
-          model.cells.push(cell);
+          const cell = model.sharedModel.insertCell(0, { cell_type: 'code' });
           model.dirty = false;
-          cell.value.text = 'foo';
+          cell.setSource('foo');
           expect(model.dirty).toBe(true);
         });
       });
     });
 
-    describe('#contentFactory', () => {
-      it('should be the cell model factory used by the model', () => {
-        const model = new NotebookModel();
-        expect(model.contentFactory.codeCellContentFactory).toBe(
-          NotebookModel.defaultContentFactory.codeCellContentFactory
-        );
-      });
-    });
-
     describe('#nbformat', () => {
       it('should get the major version number of the nbformat', () => {
         const model = new NotebookModel();
@@ -205,7 +180,7 @@ describe('@jupyterlab/notebook', () => {
     describe('#defaultKernelName()', () => {
       it('should get the default kernel name of the document', () => {
         const model = new NotebookModel();
-        model.metadata.set('kernelspec', { name: 'python3' });
+        model.setMetadata('kernelspec', { name: 'python3' });
         expect(model.defaultKernelName).toBe('python3');
       });
 
@@ -218,7 +193,7 @@ describe('@jupyterlab/notebook', () => {
     describe('#defaultKernelLanguage', () => {
       it('should get the default kernel language of the document', () => {
         const model = new NotebookModel();
-        model.metadata.set('language_info', { name: 'python' });
+        model.setMetadata('language_info', { name: 'python' });
         expect(model.defaultKernelLanguage).toBe('python');
       });
 
@@ -298,6 +273,23 @@ describe('@jupyterlab/notebook', () => {
         expect(data.cells.length).toBe(7);
         expect(data.cells[0].id).toBe('cell_1');
       });
+      it('should only include `trusted` metadata in code cells', () => {
+        const model = new NotebookModel();
+        model.fromJSON(utils.DEFAULT_CONTENT_45);
+
+        [...model.cells].map(cell => (cell.trusted = true));
+        expect(model.cells.get(0).type).toBe('code');
+        expect(model.cells.get(1).type).toBe('markdown');
+        expect(model.cells.get(2).type).toBe('raw');
+
+        const data = model.toJSON();
+        // code cell trust should be preserved
+        expect(data.cells[0].metadata.trusted).toBe(true);
+        // markdown cell should have no trusted entry
+        expect(data.cells[1].metadata.trusted).toBeUndefined();
+        // raw cell should have no trusted entry
+        expect(data.cells[2].metadata.trusted).toBeUndefined();
+      });
     });
 
     describe('#fromJSON()', () => {
@@ -325,21 +317,28 @@ describe('@jupyterlab/notebook', () => {
         model.fromJSON(utils.DEFAULT_CONTENT);
         expect(model.dirty).toBe(true);
       });
+
+      it('should populate empty notebook with empty trusted code cell', () => {
+        const model = new NotebookModel();
+        model.fromJSON(utils.EMPTY_CONTENT);
+        const cell = model.cells.get(0);
+        expect(cell.trusted).toBe(true);
+      });
     });
 
     describe('#metadata', () => {
       it('should have default values', () => {
         const model = new NotebookModel();
         const metadata = model.metadata;
-        expect(metadata.has('kernelspec')).toBeTruthy();
-        expect(metadata.has('language_info')).toBeTruthy();
-        expect(metadata.size).toBe(2);
+        expect(metadata['kernelspec']).toBeTruthy();
+        expect(metadata['language_info']).toBeTruthy();
+        expect(Object.keys(metadata)).toHaveLength(2);
       });
 
       it('should set the dirty flag when changed', () => {
         const model = new NotebookModel();
         expect(model.dirty).toBe(false);
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(model.dirty).toBe(true);
       });
 
@@ -349,21 +348,21 @@ describe('@jupyterlab/notebook', () => {
         model.contentChanged.connect(() => {
           called = true;
         });
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(called).toBe(true);
       });
 
       it('should emit the `metadataChanged` signal', () => {
         const model = new NotebookModel();
         let called = false;
-        model.metadata.changed.connect((sender, args) => {
-          expect(sender).toBe(model.metadata);
+        model.metadataChanged.connect((sender, args) => {
+          expect(sender).toBe(model);
           expect(args.key).toBe('foo');
           expect(args.oldValue).toBeUndefined();
           expect(args.newValue).toBe('bar');
           called = true;
         });
-        model.metadata.set('foo', 'bar');
+        model.setMetadata('foo', 'bar');
         expect(called).toBe(true);
       });
     });
@@ -373,152 +372,6 @@ describe('@jupyterlab/notebook', () => {
         const model = new NotebookModel();
         expect(model.cells.length).toBe(0);
       });
-
-      it('should clear undo state', () => {
-        const model = new NotebookModel({
-          disableDocumentWideUndoRedo: true
-        });
-        const cell = model.contentFactory.createCodeCell({});
-        cell.value.text = 'foo';
-        model.cells.push(cell);
-        expect(model.cells.canUndo).toBe(true);
-        model.initialize();
-        expect(model.cells.canUndo).toBe(false);
-      });
-    });
-
-    describe('.ContentFactory', () => {
-      let factory = new NotebookModel.ContentFactory({});
-
-      describe('#codeCellContentFactory', () => {
-        it('should be a code cell content factory', () => {
-          expect(factory.codeCellContentFactory).toBe(
-            CodeCellModel.defaultContentFactory
-          );
-        });
-
-        it('should be settable in the constructor', () => {
-          const codeCellContentFactory = new CodeCellModel.ContentFactory();
-          factory = new NotebookModel.ContentFactory({
-            codeCellContentFactory
-          });
-          expect(factory.codeCellContentFactory).toBe(codeCellContentFactory);
-        });
-      });
-
-      describe('#createCell()', () => {
-        it('should create a new code cell', () => {
-          const cell = factory.createCell('code', {});
-          expect(cell.type).toBe('code');
-        });
-
-        it('should create a new markdown cell', () => {
-          const cell = factory.createCell('markdown', {});
-          expect(cell.type).toBe('markdown');
-        });
-
-        it('should create a new raw cell', () => {
-          const cell = factory.createCell('raw', {});
-          expect(cell.type).toBe('raw');
-        });
-      });
-
-      describe('#createCodeCell()', () => {
-        it('should create a new code cell', () => {
-          const cell = factory.createCodeCell({});
-          expect(cell.type).toBe('code');
-        });
-
-        it('should clone an existing code cell', () => {
-          const orig = factory.createCodeCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createCodeCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-
-        it('should clone an existing raw cell', () => {
-          const orig = factory.createRawCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createCodeCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-      });
-
-      describe('#createRawCell()', () => {
-        it('should create a new raw cell', () => {
-          const cell = factory.createRawCell({});
-          expect(cell.type).toBe('raw');
-        });
-
-        it('should clone an existing raw cell', () => {
-          const orig = factory.createRawCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createRawCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-
-        it('should clone an existing code cell', () => {
-          const orig = factory.createCodeCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createRawCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-      });
-
-      describe('#createMarkdownCell()', () => {
-        it('should create a new markdown cell', () => {
-          const cell = factory.createMarkdownCell({});
-          expect(cell.type).toBe('markdown');
-        });
-
-        it('should clone an existing markdown cell', () => {
-          const orig = factory.createMarkdownCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createMarkdownCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-
-        it('should clone an existing raw cell', () => {
-          const orig = factory.createRawCell({});
-          orig.value.text = 'foo';
-          const cell = orig.toJSON();
-          const newCell = factory.createMarkdownCell({ cell });
-          expect(newCell.value.text).toBe('foo');
-        });
-      });
-
-      describe('#modelDB', () => {
-        it('should be undefined by default', () => {
-          expect(factory.modelDB).toBeUndefined();
-        });
-      });
-
-      describe('#clone()', () => {
-        it('should create a new content factory with a new IModelDB', () => {
-          const modelDB = new ModelDB();
-          const factory = new NotebookModel.ContentFactory({ modelDB });
-          expect(factory.modelDB).toBe(modelDB);
-          const newModelDB = new ModelDB();
-          const newFactory = factory.clone(newModelDB);
-          expect(newFactory.modelDB).toBe(newModelDB);
-          expect(newFactory.codeCellContentFactory).toBe(
-            factory.codeCellContentFactory
-          );
-        });
-      });
-    });
-
-    describe('.defaultContentFactory', () => {
-      it('should be a ContentFactory', () => {
-        expect(NotebookModel.defaultContentFactory).toBeInstanceOf(
-          NotebookModel.ContentFactory
-        );
-      });
     });
   });
 });
diff --git a/packages/notebook/test/modelfactory.spec.ts b/packages/notebook/test/modelfactory.spec.ts
index 66c5b1abebeb..517e8dd39d29 100644
--- a/packages/notebook/test/modelfactory.spec.ts
+++ b/packages/notebook/test/modelfactory.spec.ts
@@ -1,8 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CodeCellModel } from '@jupyterlab/cells';
-import { NotebookModel, NotebookModelFactory } from '../src';
+import { NotebookModel, NotebookModelFactory } from '@jupyterlab/notebook';
 
 describe('@jupyterlab/notebook', () => {
   describe('NotebookModelFactory', () => {
@@ -11,29 +10,6 @@ describe('@jupyterlab/notebook', () => {
         const factory = new NotebookModelFactory({});
         expect(factory).toBeInstanceOf(NotebookModelFactory);
       });
-
-      it('should accept a code cell content factory', () => {
-        const codeCellContentFactory = new CodeCellModel.ContentFactory();
-        const factory = new NotebookModelFactory({ codeCellContentFactory });
-        expect(factory.contentFactory.codeCellContentFactory).toBe(
-          codeCellContentFactory
-        );
-      });
-
-      it('should accept a notebook model content factory', () => {
-        const contentFactory = new NotebookModel.ContentFactory({});
-        const factory = new NotebookModelFactory({ contentFactory });
-        expect(factory.contentFactory).toBe(contentFactory);
-      });
-    });
-
-    describe('#contentFactory', () => {
-      it('should be the content factory used by the model factory', () => {
-        const factory = new NotebookModelFactory({});
-        expect(factory.contentFactory).toBeInstanceOf(
-          NotebookModel.ContentFactory
-        );
-      });
     });
 
     describe('#name', () => {
@@ -90,7 +66,7 @@ describe('@jupyterlab/notebook', () => {
 
       it('should accept a language preference', () => {
         const factory = new NotebookModelFactory({});
-        const model = factory.createNew('foo');
+        const model = factory.createNew({ languagePreference: 'foo' });
         expect(model.defaultKernelLanguage).toBe('foo');
       });
     });
diff --git a/packages/notebook/test/notebooktools.spec.ts b/packages/notebook/test/notebooktools.spec.ts
index ad97080a3b7f..566c19b0f0fe 100644
--- a/packages/notebook/test/notebooktools.spec.ts
+++ b/packages/notebook/test/notebooktools.spec.ts
@@ -1,21 +1,20 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CodeMirrorEditorFactory } from '@jupyterlab/codemirror';
 import { Context } from '@jupyterlab/docregistry';
-import { ObservableJSON } from '@jupyterlab/observables';
-import { initNotebookContext, sleep } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
-import { Message } from '@lumino/messaging';
-import { TabPanel, Widget } from '@lumino/widgets';
-import { simulate } from 'simulate-event';
 import {
   INotebookModel,
-  NotebookActions,
   NotebookPanel,
   NotebookTools,
   NotebookTracker
-} from '..';
+} from '@jupyterlab/notebook';
+import { initNotebookContext } from '@jupyterlab/notebook/lib/testutils';
+import { ObservableJSON } from '@jupyterlab/observables';
+import { JupyterServer, sleep } from '@jupyterlab/testing';
+import { Collapser } from '@jupyterlab/ui-components';
+import { Message } from '@lumino/messaging';
+import { PanelLayout, TabPanel, Widget } from '@lumino/widgets';
+import { simulate } from 'simulate-event';
 import * as utils from './utils';
 
 class LogTool extends NotebookTools.Tool {
@@ -51,49 +50,11 @@ class LogTool extends NotebookTools.Tool {
   }
 }
 
-class LogKeySelector extends NotebookTools.KeySelector {
-  events: string[] = [];
-  methods: string[] = [];
-
-  handleEvent(event: Event): void {
-    super.handleEvent(event);
-    this.events.push(event.type);
-  }
-
-  protected onAfterAttach(message: Message): void {
-    super.onAfterAttach(message);
-    this.methods.push('onAfterAttach');
-  }
-
-  protected onBeforeDetach(message: Message): void {
-    super.onBeforeDetach(message);
-    this.methods.push('onBeforeDetach');
-  }
-
-  protected onActiveCellChanged(message: Message): void {
-    super.onActiveCellChanged(message);
-    this.methods.push('onActiveCellChanged');
-  }
-
-  protected onActiveCellMetadataChanged(
-    message: ObservableJSON.ChangeMessage
-  ): void {
-    super.onActiveCellMetadataChanged(message);
-    this.methods.push('onActiveCellMetadataChanged');
-  }
-
-  protected onValueChanged(): void {
-    super.onValueChanged();
-    this.methods.push('onValueChanged');
-  }
-}
-
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -102,6 +63,7 @@ afterAll(async () => {
 describe('@jupyterlab/notebook', () => {
   describe('notebooktools', () => {
     let notebookTools: NotebookTools;
+    let sectionName: string;
     let tabpanel: TabPanel;
     let tracker: NotebookTracker;
     let context0: Context<INotebookModel>;
@@ -120,6 +82,8 @@ describe('@jupyterlab/notebook', () => {
       await tracker.add(panel0);
       await tracker.add(panel1);
       notebookTools = new NotebookTools({ tracker });
+      sectionName = 'section';
+      notebookTools.addSection({ sectionName: sectionName });
       tabpanel = new TabPanel();
       tabpanel.addWidget(panel0);
       tabpanel.addWidget(panel1);
@@ -180,16 +144,55 @@ describe('@jupyterlab/notebook', () => {
         });
       });
 
+      describe('#addSection()', () => {
+        it('should add an empty section', () => {
+          const newSectionName = 'newSection';
+          expect(() => {
+            notebookTools.addSection({ sectionName: newSectionName });
+          }).not.toThrow();
+          const currentWidgets = (
+            notebookTools.layout as PanelLayout
+          ).widgets.map(w => {
+            return (w as Collapser).widget;
+          });
+          expect(
+            currentWidgets.filter(w => w.title.label === newSectionName)
+          ).toHaveLength(1);
+        });
+
+        it('should add an section with a widget', () => {
+          const newSectionName = 'newSection';
+          const tool = new NotebookTools.Tool();
+          expect(() => {
+            notebookTools.addSection({ sectionName: newSectionName, tool });
+          }).not.toThrow();
+          const currentWidgets = (
+            notebookTools.layout as PanelLayout
+          ).widgets.map(w => {
+            return (w as Collapser).widget;
+          });
+          const sections = currentWidgets.filter(
+            w => w.title.label === newSectionName
+          );
+          expect(sections).toHaveLength(1);
+          expect((sections[0].layout as PanelLayout).widgets).toContain(tool);
+        });
+      });
+
       describe('#addItem()', () => {
         it('should add a cell tool item', () => {
           const tool = new NotebookTools.Tool();
-          notebookTools.addItem({ tool });
+          expect(() => {
+            notebookTools.addItem({ tool, section: sectionName });
+          }).not.toThrow();
           tool.dispose();
         });
 
         it('should accept a rank', () => {
           const tool = new NotebookTools.Tool();
-          notebookTools.addItem({ tool, rank: 100 });
+          expect(() => {
+            notebookTools.addItem({ tool, section: sectionName, rank: 100 });
+          }).not.toThrow();
           tool.dispose();
         });
       });
@@ -206,7 +209,7 @@ describe('@jupyterlab/notebook', () => {
       describe('#parent', () => {
         it('should be the notebooktools object used by the tool', () => {
           const tool = new NotebookTools.Tool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           expect(tool.notebookTools).toBe(notebookTools);
         });
       });
@@ -214,7 +217,7 @@ describe('@jupyterlab/notebook', () => {
       describe('#onActiveNotebookPanelChanged()', () => {
         it('should be called when the active notebook panel changes', () => {
           const tool = new LogTool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           tool.methods = [];
           simulate(panel0.node, 'focus');
           expect(tool.methods).toContain('onActiveNotebookPanelChanged');
@@ -224,7 +227,7 @@ describe('@jupyterlab/notebook', () => {
       describe('#onActiveCellChanged()', () => {
         it('should be called when the active cell changes', () => {
           const tool = new LogTool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           tool.methods = [];
           simulate(panel0.node, 'focus');
           expect(tool.methods).toContain('onActiveCellChanged');
@@ -234,7 +237,7 @@ describe('@jupyterlab/notebook', () => {
       describe('#onSelectionChanged()', () => {
         it('should be called when the selection changes', () => {
           const tool = new LogTool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           tool.methods = [];
           const current = tracker.currentWidget!;
           current.content.select(current.content.widgets[1]);
@@ -245,11 +248,11 @@ describe('@jupyterlab/notebook', () => {
       describe('#onActiveCellMetadataChanged()', () => {
         it('should be called when the active cell metadata changes', () => {
           const tool = new LogTool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           tool.methods = [];
-          const metadata = notebookTools.activeCell!.model.metadata;
-          metadata.set('foo', 1);
-          metadata.set('foo', 2);
+          const model = notebookTools.activeCell!.model;
+          model.setMetadata('foo', 1);
+          model.setMetadata('foo', 2);
           expect(tool.methods).toContain('onActiveCellMetadataChanged');
         });
       });
@@ -257,325 +260,16 @@ describe('@jupyterlab/notebook', () => {
       describe('#onActiveNotebookPanelMetadataChanged()', () => {
         it('should be called when the active notebook panel metadata changes', () => {
           const tool = new LogTool({});
-          notebookTools.addItem({ tool });
+          notebookTools.addItem({ tool, section: sectionName });
           tool.methods = [];
-          const metadata = notebookTools.activeNotebookPanel!.model!.metadata;
-          metadata.set('foo', 1);
-          metadata.set('foo', 2);
+          const model = notebookTools.activeNotebookPanel!.model!;
+          model.setMetadata('foo', 1);
+          model.setMetadata('foo', 2);
           expect(tool.methods).toContain(
             'onActiveNotebookPanelMetadataChanged'
           );
         });
       });
     });
-
-    describe('NotebookTools.ActiveCellTool', () => {
-      it('should create a new active cell tool', () => {
-        const tool = new NotebookTools.ActiveCellTool();
-        notebookTools.addItem({ tool });
-        expect(tool).toBeInstanceOf(NotebookTools.ActiveCellTool);
-      });
-
-      it('should handle a change to the active cell', () => {
-        const tool = new NotebookTools.ActiveCellTool();
-        notebookTools.addItem({ tool });
-        const widget = tracker.currentWidget!;
-        widget.content.activeCellIndex++;
-        widget.content.activeCell!.model.metadata.set('bar', 1);
-        expect(tool.node.querySelector('.jp-InputArea-editor')).toBeTruthy();
-      });
-    });
-
-    describe('NotebookTools.CellMetadataEditorTool', () => {
-      const editorServices = new CodeMirrorEditorFactory();
-      const editorFactory = editorServices.newInlineEditor.bind(editorServices);
-
-      it('should create a new metadata editor tool', () => {
-        const tool = new NotebookTools.CellMetadataEditorTool({
-          editorFactory
-        });
-        expect(tool).toBeInstanceOf(NotebookTools.CellMetadataEditorTool);
-      });
-
-      it('should handle a change to the active cell', () => {
-        const tool = new NotebookTools.CellMetadataEditorTool({
-          editorFactory
-        });
-        notebookTools.addItem({ tool });
-        const model = tool.editor.model;
-        expect(JSON.stringify(model.value.text)).toBeTruthy();
-        const widget = tracker.currentWidget!;
-        widget.content.activeCellIndex++;
-        widget.content.activeCell!.model.metadata.set('bar', 1);
-        expect(JSON.stringify(tool.editor.model.value.text)).toContain('bar');
-      });
-
-      it('should handle a change to the metadata', () => {
-        const tool = new NotebookTools.CellMetadataEditorTool({
-          editorFactory
-        });
-        notebookTools.addItem({ tool });
-        const model = tool.editor.model;
-        const previous = model.value.text;
-        const metadata = notebookTools.activeCell!.model.metadata;
-        metadata.set('foo', 1);
-        expect(model.value.text).not.toBe(previous);
-      });
-    });
-
-    describe('NotebookTools.NotebookMetadataEditorTool', () => {
-      const editorServices = new CodeMirrorEditorFactory();
-      const editorFactory = editorServices.newInlineEditor.bind(editorServices);
-
-      it('should create a new metadata editor tool', () => {
-        const tool = new NotebookTools.NotebookMetadataEditorTool({
-          editorFactory
-        });
-        expect(tool).toBeInstanceOf(NotebookTools.NotebookMetadataEditorTool);
-      });
-
-      it('should handle a change to the active notebook', () => {
-        panel0.model!.metadata.set('panel0', 1);
-        panel1.model!.metadata.set('panel1', 1);
-        const tool = new NotebookTools.NotebookMetadataEditorTool({
-          editorFactory
-        });
-        notebookTools.addItem({ tool });
-        const model = tool.editor.model;
-        expect(JSON.stringify(model.value.text)).toBeTruthy();
-
-        simulate(panel0.node, 'focus');
-        expect(JSON.stringify(tool.editor.model.value.text)).toContain(
-          'panel0'
-        );
-        expect(JSON.stringify(tool.editor.model.value.text)).not.toContain(
-          'panel1'
-        );
-
-        simulate(panel1.node, 'focus');
-        expect(JSON.stringify(tool.editor.model.value.text)).not.toContain(
-          'panel0'
-        );
-        expect(JSON.stringify(tool.editor.model.value.text)).toContain(
-          'panel1'
-        );
-      });
-
-      it('should handle a change to the metadata', () => {
-        const tool = new NotebookTools.NotebookMetadataEditorTool({
-          editorFactory
-        });
-        notebookTools.addItem({ tool });
-        const model = tool.editor.model;
-        const widget = tracker.currentWidget!;
-        expect(JSON.stringify(model.value.text)).not.toContain('newvalue');
-        widget.content.model!.metadata.set('newvalue', 1);
-        expect(JSON.stringify(model.value.text)).toContain('newvalue');
-      });
-    });
-
-    describe('NotebookTools.KeySelector', () => {
-      let tool: LogKeySelector;
-
-      beforeEach(() => {
-        tool = new LogKeySelector({
-          key: 'foo',
-          title: 'Foo',
-          optionValueArray: [
-            ['bar', 1],
-            ['baz', [1, 2, 'a']]
-          ]
-        });
-        notebookTools.addItem({ tool });
-        simulate(panel0.node, 'focus');
-        tabpanel.currentIndex = 2;
-      });
-
-      afterEach(() => {
-        tool.dispose();
-      });
-
-      describe('#constructor()', () => {
-        it('should create a new key selector', () => {
-          expect(tool).toBeInstanceOf(NotebookTools.KeySelector);
-        });
-      });
-
-      describe('#key', () => {
-        it('should be the key used by the selector', () => {
-          expect(tool.key).toBe('foo');
-        });
-      });
-
-      describe('#selectNode', () => {
-        it('should be the select node', () => {
-          expect(tool.selectNode.localName).toBe('select');
-        });
-      });
-
-      describe('#handleEvent()', () => {
-        describe('change', () => {
-          it('should update the metadata', () => {
-            const select = tool.selectNode;
-            simulate(select, 'focus');
-            select.selectedIndex = 1;
-            simulate(select, 'change');
-            expect(tool.events).toContain('change');
-            const metadata = notebookTools.activeCell!.model.metadata;
-            expect(metadata.get('foo')).toEqual([1, 2, 'a']);
-          });
-        });
-
-        describe('focus', () => {
-          it('should add the focused class to the wrapper node', () => {
-            const select = tool.selectNode;
-            simulate(select, 'focus');
-            const selector = '.jp-mod-focused';
-            expect(tool.node.querySelector(selector)).toBeTruthy();
-          });
-        });
-
-        describe('blur', () => {
-          it('should remove the focused class from the wrapper node', () => {
-            const select = tool.selectNode;
-            simulate(select, 'focus');
-            simulate(select, 'blur');
-            const selector = '.jp-mod-focused';
-            expect(tool.node.querySelector(selector)).toBeFalsy();
-          });
-        });
-      });
-
-      describe('#onAfterAttach()', () => {
-        it('should add event listeners', () => {
-          const select = tool.selectNode;
-          expect(tool.methods).toContain('onAfterAttach');
-          simulate(select, 'focus');
-          simulate(select, 'blur');
-          select.selectedIndex = 0;
-          simulate(select, 'change');
-          expect(tool.events).toEqual(['change']);
-        });
-      });
-
-      describe('#onBeforeDetach()', () => {
-        it('should remove event listeners', () => {
-          const select = tool.selectNode;
-          notebookTools.dispose();
-          expect(tool.methods).toContain('onBeforeDetach');
-          simulate(select, 'focus');
-          simulate(select, 'blur');
-          simulate(select, 'change');
-          expect(tool.events).toEqual([]);
-        });
-      });
-
-      describe('#onValueChanged()', () => {
-        it('should update the metadata', () => {
-          const select = tool.selectNode;
-          simulate(select, 'focus');
-          select.selectedIndex = 1;
-          simulate(select, 'change');
-          expect(tool.methods).toContain('onValueChanged');
-          const metadata = notebookTools.activeCell!.model.metadata;
-          expect(metadata.get('foo')).toEqual([1, 2, 'a']);
-        });
-      });
-
-      describe('#onActiveCellChanged()', () => {
-        it('should update the select value', () => {
-          const cell = panel0.content.model!.cells.get(1);
-          cell.metadata.set('foo', 1);
-          panel0.content.activeCellIndex = 1;
-          expect(tool.methods).toContain('onActiveCellChanged');
-          expect(tool.selectNode.value).toBe('1');
-        });
-      });
-
-      describe('#onActiveCellMetadataChanged()', () => {
-        it('should update the select value', () => {
-          const metadata = notebookTools.activeCell!.model.metadata;
-          metadata.set('foo', 1);
-          expect(tool.methods).toContain('onActiveCellMetadataChanged');
-          expect(tool.selectNode.value).toBe('1');
-        });
-      });
-    });
-
-    describe('NotebookTools.createSlideShowSelector()', () => {
-      it('should create a slide show selector', () => {
-        const tool = NotebookTools.createSlideShowSelector();
-        tool.selectNode.selectedIndex = -1;
-        notebookTools.addItem({ tool });
-        simulate(panel0.node, 'focus');
-        tabpanel.currentIndex = 2;
-        expect(tool).toBeInstanceOf(NotebookTools.KeySelector);
-        expect(tool.key).toBe('slideshow');
-        const select = tool.selectNode;
-        expect(select.value).toBe('');
-        const metadata = notebookTools.activeCell!.model.metadata;
-        expect(metadata.get('slideshow')).toBeUndefined();
-        simulate(select, 'focus');
-        tool.selectNode.selectedIndex = 1;
-        simulate(select, 'change');
-        expect(metadata.get('slideshow')).toEqual({
-          slide_type: 'slide'
-        });
-      });
-    });
-
-    describe('NotebookTools.createNBConvertSelector()', () => {
-      it('should create a raw mimetype selector', () => {
-        const optionValueArray: any = [
-          [null, '-'],
-          ['LaTeX', 'text/latex'],
-          ['reST', 'text/restructuredtext'],
-          ['HTML', 'text/html'],
-          ['Markdown', 'text/markdown'],
-          ['Python', 'text/x-python']
-        ];
-        optionValueArray.push(['None', '-']);
-        const tool = NotebookTools.createNBConvertSelector(optionValueArray);
-        tool.selectNode.selectedIndex = -1;
-        notebookTools.addItem({ tool });
-        simulate(panel0.node, 'focus');
-        NotebookActions.changeCellType(panel0.content, 'raw');
-        tabpanel.currentIndex = 2;
-        expect(tool).toBeInstanceOf(NotebookTools.KeySelector);
-        expect(tool.key).toBe('raw_mimetype');
-        const select = tool.selectNode;
-        expect(select.value).toBe('');
-
-        const metadata = notebookTools.activeCell!.model.metadata;
-        expect(metadata.get('raw_mimetype')).toBeUndefined();
-        simulate(select, 'focus');
-        tool.selectNode.selectedIndex = 2;
-        simulate(select, 'change');
-        expect(metadata.get('raw_mimetype')).toBe('text/restructuredtext');
-      });
-
-      it('should have no effect on a code cell', () => {
-        const optionValueArray: any = [
-          ['None', '-'],
-          ['LaTeX', 'text/latex'],
-          ['reST', 'text/restructuredtext'],
-          ['HTML', 'text/html'],
-          ['Markdown', 'text/markdown'],
-          ['Python', 'text/x-python']
-        ];
-        const tool = NotebookTools.createNBConvertSelector(optionValueArray);
-        tool.selectNode.selectedIndex = -1;
-        notebookTools.addItem({ tool });
-        simulate(panel0.node, 'focus');
-        NotebookActions.changeCellType(panel0.content, 'code');
-
-        tabpanel.currentIndex = 2;
-        expect(tool).toBeInstanceOf(NotebookTools.KeySelector);
-        expect(tool.key).toBe('raw_mimetype');
-        const select = tool.selectNode;
-        expect(select.disabled).toBe(true);
-        expect(select.value).toBe('');
-      });
-    });
   });
 });
diff --git a/packages/notebook/test/panel.spec.ts b/packages/notebook/test/panel.spec.ts
index ab47b2b5e2f7..937b48e8c506 100644
--- a/packages/notebook/test/panel.spec.ts
+++ b/packages/notebook/test/panel.spec.ts
@@ -1,11 +1,11 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Toolbar } from '@jupyterlab/apputils';
 import { Context } from '@jupyterlab/docregistry';
-import { initNotebookContext } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
-import { INotebookModel, Notebook, NotebookPanel } from '..';
+import { initNotebookContext } from '@jupyterlab/notebook/lib/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
+import { Toolbar } from '@jupyterlab/ui-components';
+import { INotebookModel, Notebook, NotebookPanel } from '@jupyterlab/notebook';
 import * as utils from './utils';
 
 /**
@@ -16,9 +16,8 @@ const contentFactory = utils.createNotebookPanelFactory();
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/packages/notebook/test/searchprovider.spec.ts b/packages/notebook/test/searchprovider.spec.ts
new file mode 100644
index 000000000000..b99cdfb3005f
--- /dev/null
+++ b/packages/notebook/test/searchprovider.spec.ts
@@ -0,0 +1,334 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { signalToPromise } from '@jupyterlab/coreutils';
+import {
+  INotebookModel,
+  NotebookPanel,
+  NotebookSearchProvider
+} from '@jupyterlab/notebook';
+import { Context } from '@jupyterlab/docregistry';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
+import { CodeEditor } from '@jupyterlab/codeeditor';
+import * as utils from './utils';
+
+/**
+ * To avoid relying on ydoc passing the selections via server
+ * (this test runs without a server for efficiency) we also set
+ * selections on the model directly.
+ */
+async function setSelections(
+  editor: CodeEditor.IEditor,
+  selections: CodeEditor.ITextSelection[]
+) {
+  const promise = signalToPromise(editor.model.selections.changed);
+  editor.setSelections(selections);
+  editor.model.selections.set('main-selection', selections);
+  await promise;
+}
+
+class TestProvider extends NotebookSearchProvider {
+  get cellChangeHandled(): Promise<void> {
+    // ensure `_delayedActiveCellChangeHandler` fired
+    jest.advanceTimersByTime(0);
+    // ensure `_delayedActiveCellChangeHandler` has completed
+    return this.delayedActiveCellChangeHandlerReady;
+  }
+}
+
+jest.useFakeTimers();
+
+describe('@jupyterlab/notebook', () => {
+  describe('NotebookSearchProvider', () => {
+    let context: Context<INotebookModel>;
+    let panel: NotebookPanel;
+    let provider: TestProvider;
+
+    beforeEach(async () => {
+      context = await NBTestUtils.createMockContext(false);
+      panel = utils.createNotebookPanel(context);
+      provider = new TestProvider(panel);
+      panel.model!.sharedModel.insertCells(0, [
+        { cell_type: 'markdown', source: 'test1 test2' },
+        { cell_type: 'code', source: 'test3' }
+      ]);
+    });
+
+    afterEach(() => {
+      context.dispose();
+    });
+
+    describe('#matchesCount', () => {
+      it('should return number of matches', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.matchesCount).toBe(3);
+      });
+
+      it('should return number of matches in selected lines', async () => {
+        panel.model!.sharedModel.deleteCellRange(0, 2);
+        panel.model!.sharedModel.insertCells(0, [
+          { cell_type: 'code', source: 'test1\ntest2\ntest3\ntest4\ntest5' }
+        ]);
+        panel.content.activeCellIndex = 0;
+        panel.content.mode = 'edit';
+
+        await provider.startQuery(/test/, { selection: true });
+        expect(provider.matchesCount).toBe(5);
+        await setSelections(panel.content.activeCell!.editor!, [
+          {
+            uuid: 'main-selection',
+            start: { line: 1, column: 0 },
+            end: { line: 2, column: 6 }
+          }
+        ]);
+        expect(provider.matchesCount).toBe(3);
+        await setSelections(panel.content.activeCell!.editor!, [
+          {
+            uuid: 'main-selection',
+            start: { line: 1, column: 0 },
+            end: { line: 1, column: 6 }
+          }
+        ]);
+        expect(provider.matchesCount).toBe(2);
+        await provider.endQuery();
+      });
+    });
+
+    describe('#highlightNext()', () => {
+      it('should highlight next match', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.endQuery();
+      });
+
+      it('should loop back to first match', async () => {
+        panel.content.activeCellIndex = 1;
+        await provider.startQuery(/test/, undefined);
+        expect(panel.content.activeCellIndex).toBe(1);
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.highlightNext();
+        expect(panel.content.activeCellIndex).toBe(0);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should loop back to first match when limited to single cell', async () => {
+        panel.content.activeCellIndex = 0;
+        panel.content.mode = 'command';
+        await provider.startQuery(/test/, { selection: true });
+        expect(panel.content.activeCellIndex).toBe(0);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(0);
+        expect(panel.content.activeCellIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should loop back to first match in selected lines', async () => {
+        panel.model!.sharedModel.deleteCellRange(0, 2);
+        panel.model!.sharedModel.insertCells(0, [
+          { cell_type: 'code', source: 'test1\ntest2\ntest3\ntest4\ntest5' }
+        ]);
+        panel.content.activeCellIndex = 0;
+        panel.content.mode = 'edit';
+
+        await provider.startQuery(/test/, { selection: true });
+        await setSelections(panel.content.activeCell!.editor!, [
+          {
+            uuid: 'main-selection',
+            start: { line: 1, column: 0 },
+            end: { line: 2, column: 6 }
+          }
+        ]);
+        expect(panel.content.activeCellIndex).toBe(0);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should do nothing if there are no cells', async () => {
+        await provider.startQuery(/test/, undefined);
+        for (let _ of panel.model!.sharedModel.cells) {
+          panel.model!.sharedModel.deleteCell(0);
+        }
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(null);
+        await provider.endQuery();
+      });
+    });
+
+    describe('#highlightPrevious()', () => {
+      it('should highlight previous match', async () => {
+        panel.content.activeCellIndex = 1;
+        await provider.startQuery(/tes/, undefined);
+        expect(provider.currentMatchIndex).toBe(2);
+        expect(panel.content.activeCellIndex).toBe(1);
+        await provider.highlightPrevious();
+        expect(panel.content.activeCellIndex).toBe(0);
+        expect(provider.currentMatchIndex).toBe(1);
+        await provider.highlightPrevious();
+        expect(panel.content.activeCellIndex).toBe(0);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.endQuery();
+      });
+
+      it('should loop back to last match', async () => {
+        await provider.startQuery(/test/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightPrevious();
+        expect(provider.currentMatchIndex).toBe(2);
+        await provider.endQuery();
+      });
+
+      it('should go to previous cell if there is no current match in active cell', async () => {
+        await provider.startQuery(/test/, undefined);
+        await provider.highlightNext();
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(2);
+        expect(panel.content.activeCellIndex).toBe(1);
+        await provider.highlightPrevious();
+        expect(panel.content.activeCellIndex).toBe(0);
+        await provider.endQuery();
+      });
+    });
+
+    describe('#replaceCurrentMatch()', () => {
+      it('should replace with a shorter text and highlight next', async () => {
+        await provider.startQuery(/test\d/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        let replaced = await provider.replaceCurrentMatch('bar');
+        expect(replaced).toBe(true);
+        const source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('bar test2');
+        expect(provider.currentMatchIndex).toBe(0);
+      });
+
+      it('should substitute groups in regular expressions', async () => {
+        await provider.startQuery(/test(\d)/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        await provider.highlightNext();
+        expect(provider.currentMatchIndex).toBe(1);
+        let replaced = await provider.replaceCurrentMatch(
+          '$1st_bar (was $&)',
+          false,
+          { regularExpression: true }
+        );
+        expect(replaced).toBe(true);
+        const source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('test1 2st_bar (was test2)');
+      });
+
+      it('should not substitute if regular expression toggle is off', async () => {
+        await provider.startQuery(/test(\d)/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        let replaced = await provider.replaceCurrentMatch(
+          '$1st_bar (was $&)',
+          false,
+          { regularExpression: false }
+        );
+        expect(replaced).toBe(true);
+        const source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('$1st_bar (was $&) test2');
+      });
+
+      it('should replace with a longer text and highlight next', async () => {
+        await provider.startQuery(/test\d/, undefined);
+        expect(provider.currentMatchIndex).toBe(0);
+        let replaced = await provider.replaceCurrentMatch('rabarbar');
+        expect(replaced).toBe(true);
+        let source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('rabarbar test2');
+        expect(provider.currentMatchIndex).toBe(0);
+
+        replaced = await provider.replaceCurrentMatch('rabarbar');
+        expect(replaced).toBe(true);
+        source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('rabarbar rabarbar');
+        expect(provider.currentMatchIndex).toBe(0);
+
+        replaced = await provider.replaceCurrentMatch('rabarbar');
+        expect(replaced).toBe(true);
+        source = panel.model!.cells.get(1).sharedModel.getSource();
+        expect(source).toBe('rabarbar');
+        expect(provider.currentMatchIndex).toBe(null);
+      });
+    });
+
+    describe('#replaceAllMatches()', () => {
+      it('should replace all occurrences across cells', async () => {
+        await provider.startQuery(/test\d/, undefined);
+        await provider.highlightNext();
+        const replaced = await provider.replaceAllMatches('test0');
+        expect(replaced).toBe(true);
+        let source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('test0 test0');
+        source = panel.model!.cells.get(1).sharedModel.getSource();
+        expect(source).toBe('test0');
+        expect(provider.currentMatchIndex).toBe(null);
+      });
+
+      it('should only replace within first cell', async () => {
+        await provider.startQuery(/test/, { selection: true });
+        panel.content.mode = 'command';
+        panel.content.activeCellIndex = 0;
+        await provider.cellChangeHandled;
+        expect(provider.currentMatchIndex).toBe(0);
+        const replaced = await provider.replaceAllMatches('bar');
+        expect(replaced).toBe(true);
+        let source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('bar1 bar2');
+        source = panel.model!.cells.get(1).sharedModel.getSource();
+        expect(source).toBe('test3');
+        await provider.endQuery();
+      });
+
+      it('should only replace within second cell', async () => {
+        await provider.startQuery(/test/, { selection: true });
+        panel.content.mode = 'command';
+        panel.content.activeCellIndex = 1;
+        await provider.cellChangeHandled;
+        const replaced = await provider.replaceAllMatches('bar');
+        expect(replaced).toBe(true);
+        let source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('test1 test2');
+        source = panel.model!.cells.get(1).sharedModel.getSource();
+        expect(source).toBe('bar3');
+        await provider.endQuery();
+      });
+
+      it('should only replace within selected lines', async () => {
+        panel.model!.sharedModel.deleteCellRange(0, 2);
+        panel.model!.sharedModel.insertCells(0, [
+          { cell_type: 'code', source: 'test1\ntest2\ntest3\ntest4\ntest5' }
+        ]);
+        panel.content.activeCellIndex = 0;
+        panel.content.mode = 'edit';
+
+        await provider.startQuery(/test/, { selection: true });
+        await setSelections(panel.content.activeCell!.editor!, [
+          {
+            uuid: 'main-selection',
+            start: { line: 1, column: 0 },
+            end: { line: 2, column: 6 }
+          }
+        ]);
+        const replaced = await provider.replaceAllMatches('bar');
+        expect(replaced).toBe(true);
+        let source = panel.model!.cells.get(0).sharedModel.getSource();
+        expect(source).toBe('test1\nbar2\nbar3\nbar4\ntest5');
+        await provider.endQuery();
+      });
+    });
+  });
+});
diff --git a/packages/notebook/test/tracker.spec.ts b/packages/notebook/test/tracker.spec.ts
index cbd415739d91..44829c21dbdf 100644
--- a/packages/notebook/test/tracker.spec.ts
+++ b/packages/notebook/test/tracker.spec.ts
@@ -3,9 +3,13 @@
 
 import { Cell } from '@jupyterlab/cells';
 import { Context } from '@jupyterlab/docregistry';
-import { initNotebookContext } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
-import { INotebookModel, NotebookPanel, NotebookTracker } from '..';
+import { initNotebookContext } from '@jupyterlab/notebook/lib/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
+import {
+  INotebookModel,
+  NotebookPanel,
+  NotebookTracker
+} from '@jupyterlab/notebook';
 import * as utils from './utils';
 
 const namespace = 'notebook-tracker-test';
@@ -13,9 +17,8 @@ const namespace = 'notebook-tracker-test';
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -58,7 +61,7 @@ describe('@jupyterlab/notebook', () => {
       it('should be `null` if a tracked notebook has no active cell', () => {
         const tracker = new NotebookTracker({ namespace });
         const panel = utils.createNotebookPanel(context);
-        panel.content.model!.cells.clear();
+        panel.content.model!.sharedModel.clearUndoHistory();
         void tracker.add(panel);
         expect(tracker.activeCell).toBeNull();
       });
diff --git a/packages/notebook/test/utils.ts b/packages/notebook/test/utils.ts
index fe88f75a3734..93cf09804a1f 100644
--- a/packages/notebook/test/utils.ts
+++ b/packages/notebook/test/utils.ts
@@ -2,13 +2,20 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Context, DocumentRegistry } from '@jupyterlab/docregistry';
-import { NBTestUtils } from '@jupyterlab/testutils';
+import { INotebookContent } from '@jupyterlab/nbformat';
 import {
   INotebookModel,
   Notebook,
   NotebookPanel,
   NotebookWidgetFactory
-} from '..';
+} from '@jupyterlab/notebook';
+import { NBTestUtils } from '@jupyterlab/notebook/lib/testutils';
+import * as defaultContent45 from './default-45.json';
+import * as emptyContent from './empty.json';
+
+export { DEFAULT_CONTENT } from '@jupyterlab/notebook/lib/testutils';
+export const DEFAULT_CONTENT_45: INotebookContent = defaultContent45;
+export const EMPTY_CONTENT: INotebookContent = emptyContent;
 
 /**
  * Local versions of the NBTestUtils that import from `src` instead of `lib`.
@@ -51,14 +58,12 @@ export function populateNotebook(notebook: Notebook): void {
   NBTestUtils.populateNotebook(notebook);
 }
 
-export const DEFAULT_CONTENT = NBTestUtils.DEFAULT_CONTENT;
-export const DEFAULT_CONTENT_45 = NBTestUtils.DEFAULT_CONTENT_45;
 export const editorFactory = NBTestUtils.editorFactory;
 export const mimeTypeService = NBTestUtils.mimeTypeService;
 export const defaultEditorConfig = NBTestUtils.defaultEditorConfig;
 export const clipboard = NBTestUtils.clipboard;
 
-export function defaultRenderMime() {
+export function defaultRenderMime(): any {
   return NBTestUtils.defaultRenderMime();
 }
 
diff --git a/packages/notebook/test/widget.spec.ts b/packages/notebook/test/widget.spec.ts
index b2993e8cedf8..3f7dededee75 100644
--- a/packages/notebook/test/widget.spec.ts
+++ b/packages/notebook/test/widget.spec.ts
@@ -10,21 +10,28 @@ import {
   RawCell,
   RawCellModel
 } from '@jupyterlab/cells';
-import { framePromise } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
+import {
+  INotebookModel,
+  Notebook,
+  NotebookModel,
+  StaticNotebook
+} from '@jupyterlab/notebook';
+import {
+  framePromise,
+  JupyterServer,
+  signalToPromise,
+  sleep
+} from '@jupyterlab/testing';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { generate, simulate } from 'simulate-event';
-import * as nbformat from '@jupyterlab/nbformat';
-import { INotebookModel, Notebook, NotebookModel, StaticNotebook } from '..';
 import * as utils from './utils';
 
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -33,21 +40,9 @@ afterAll(async () => {
 const contentFactory = utils.createNotebookFactory();
 const editorConfig = utils.defaultEditorConfig;
 const rendermime = utils.defaultRenderMime();
-const notebookConfig = {
-  scrollPastEnd: true,
-  defaultCell: 'code' as nbformat.CellType,
-  recordTiming: false,
-  numberCellsToRenderDirectly: 9999,
-  remainingTimeBeforeRescheduling: 50,
-  renderCellOnIdle: true,
-  observedTopMargin: '1000px',
-  observedBottomMargin: '1000px',
-  maxNumberOutputs: 50,
-  disableDocumentWideUndoRedo: true,
-  renderingLayout: 'default' as 'default' | 'side-by-side',
-  sideBySideLeftMarginOverride: '10px',
-  sideBySideRightMarginOverride: '10px',
-  sideBySideOutputRatio: 1
+const notebookConfig: StaticNotebook.INotebookConfig = {
+  ...StaticNotebook.defaultNotebookConfig,
+  windowingMode: 'none'
 };
 
 const options: Notebook.IOptions = {
@@ -91,11 +86,6 @@ class LogStaticNotebook extends StaticNotebook {
     this.methods.push('onCellInserted');
   }
 
-  protected onCellMoved(fromIndex: number, toIndex: number): void {
-    super.onCellMoved(fromIndex, toIndex);
-    this.methods.push('onCellMoved');
-  }
-
   protected onCellRemoved(index: number, cell: Cell): void {
     super.onCellRemoved(index, cell);
     this.methods.push('onCellRemoved');
@@ -137,11 +127,6 @@ class LogNotebook extends Notebook {
     this.methods.push('onCellInserted');
   }
 
-  protected onCellMoved(fromIndex: number, toIndex: number): void {
-    super.onCellMoved(fromIndex, toIndex);
-    this.methods.push('onCellMoved');
-  }
-
   protected onCellRemoved(index: number, cell: Cell): void {
     super.onCellRemoved(index, cell);
     this.methods.push('onCellRemoved');
@@ -156,7 +141,7 @@ function createActiveWidget(): LogNotebook {
 }
 
 function selected(nb: Notebook): number[] {
-  const selected = [];
+  const selected: number[] = [];
   const cells = nb.widgets;
   for (let i = 0; i < cells.length; i++) {
     if (nb.isSelected(cells[i])) {
@@ -213,8 +198,7 @@ describe('@jupyter/notebook', () => {
         widget.modelContentChanged.connect(() => {
           called = true;
         });
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.push(cell);
+        widget.model!.sharedModel.insertCell(0, { cell_type: 'code' });
         expect(called).toBe(true);
       });
 
@@ -225,7 +209,7 @@ describe('@jupyter/notebook', () => {
         widget.modelContentChanged.connect(() => {
           called = true;
         });
-        widget.model!.metadata.set('foo', 1);
+        widget.model!.setMetadata('foo', 1);
         expect(called).toBe(true);
       });
     });
@@ -279,6 +263,7 @@ describe('@jupyter/notebook', () => {
         const widget = new LogStaticNotebook(options);
         const model1 = new NotebookModel();
         expect(model1.cells.length).toBe(0);
+
         widget.model = model1;
         expect(model1.cells.length).toBe(1);
         expect(model1.cells.get(0).type).toBe('code');
@@ -287,8 +272,11 @@ describe('@jupyter/notebook', () => {
           ...widget.notebookConfig,
           defaultCell: 'markdown'
         };
-        const model2 = new NotebookModel();
+        const model2 = new NotebookModel({
+          defaultCell: 'markdown'
+        });
         expect(model2.cells.length).toBe(0);
+
         widget.model = model2;
         expect(model2.cells.length).toBe(1);
         expect(model2.cells.get(0).type).toBe('markdown');
@@ -298,7 +286,7 @@ describe('@jupyter/notebook', () => {
         const widget = new LogStaticNotebook(options);
         const model = new NotebookModel();
         const value = { name: 'python', codemirror_mode: 'python' };
-        model.metadata.set('language_info', value);
+        model.setMetadata('language_info', value);
         widget.model = model;
         const child = widget.widgets[0];
         expect(child.model.mimeType).toBe('text/x-python');
@@ -318,9 +306,9 @@ describe('@jupyter/notebook', () => {
 
         it('should handle changes to the model cell list', async () => {
           widget = createWidget();
-          widget.model!.cells.insert(
+          widget.model!.sharedModel.insertCell(
             widget.model!.sharedModel.cells.length,
-            widget.model!.contentFactory.createCell('code', {})
+            { cell_type: 'code' }
           );
           await framePromise();
           expect(widget.widgets.length).toBe(2);
@@ -329,46 +317,42 @@ describe('@jupyter/notebook', () => {
         it('should handle a remove', () => {
           const cell = widget.model!.cells.get(1);
           const child = widget.widgets[1];
-          widget.model!.cells.removeValue(cell);
-          expect(cell.isDisposed).toBe(false);
+          widget.model!.sharedModel.deleteCell(1);
+          expect(cell.isDisposed).toBe(true);
           expect(child.isDisposed).toBe(true);
         });
 
         it('should handle an add', () => {
-          const cell = widget.model!.contentFactory.createCodeCell({});
-          widget.model!.cells.push(cell);
+          widget.model!.sharedModel.insertCell(0, { cell_type: 'code' });
           expect(widget.widgets.length).toBe(widget.model!.cells.length);
           const child = widget.widgets[0];
           expect(child.hasClass('jp-Notebook-cell')).toBe(true);
         });
 
         it('should initially render markdown cells with content', () => {
-          const cell1 = widget.model!.contentFactory.createMarkdownCell({});
-          const cell2 = widget.model!.contentFactory.createMarkdownCell({});
-          cell1.value.text = '# Hello';
-          widget.model!.cells.push(cell1);
-          widget.model!.cells.push(cell2);
+          widget.model!.sharedModel.insertCells(0, [
+            { cell_type: 'markdown', source: '# Hello' },
+            { cell_type: 'markdown' }
+          ]);
           expect(widget.widgets.length).toBe(widget.model!.cells.length);
-          const child1 = widget.widgets[
-            widget.model!.cells.length - 2
-          ] as MarkdownCell;
-          const child2 = widget.widgets[
-            widget.model!.cells.length - 1
-          ] as MarkdownCell;
+          const child1 = widget.widgets[0] as MarkdownCell;
+          const child2 = widget.widgets[1] as MarkdownCell;
           expect(child1.rendered).toBe(true);
           expect(child2.rendered).toBe(false);
         });
 
         it('should handle a move', () => {
           const child = widget.widgets[1];
-          widget.model!.cells.move(1, 2);
-          expect(widget.widgets[2]).toBe(child);
+          widget.model!.sharedModel.moveCell(1, 2);
+          expect(widget.widgets[2].id).toBe(child.id);
         });
 
         it('should handle a clear', () => {
-          const cell = widget.model!.contentFactory.createCodeCell({});
-          widget.model!.cells.push(cell);
-          widget.model!.cells.clear();
+          widget.model!.sharedModel.insertCell(0, { cell_type: 'code' });
+          widget.model!.sharedModel.deleteCellRange(
+            0,
+            widget.model!.sharedModel.cells.length
+          );
           expect(widget.widgets.length).toBe(0);
         });
       });
@@ -398,7 +382,7 @@ describe('@jupyter/notebook', () => {
 
       it('should be settable', () => {
         const widget = createWidget();
-        expect(widget.widgets[0].editor.getOption('autoClosingBrackets')).toBe(
+        expect(widget.widgets[0].editor!.getOption('autoClosingBrackets')).toBe(
           false
         );
         const newConfig = {
@@ -410,7 +394,7 @@ describe('@jupyter/notebook', () => {
           }
         };
         widget.editorConfig = newConfig;
-        expect(widget.widgets[0].editor.getOption('autoClosingBrackets')).toBe(
+        expect(widget.widgets[0].editor!.getOption('autoClosingBrackets')).toBe(
           true
         );
       });
@@ -426,7 +410,7 @@ describe('@jupyter/notebook', () => {
         const widget = new LogStaticNotebook(options);
         const model = new NotebookModel();
         const value = { name: 'python', codemirror_mode: 'python' };
-        model.metadata.set('language_info', value);
+        model.setMetadata('language_info', value);
         widget.model = model;
         expect(widget.codeMimetype).toBe('text/x-python');
       });
@@ -490,7 +474,7 @@ describe('@jupyter/notebook', () => {
     describe('#onMetadataChanged()', () => {
       it('should be called when the metadata on the notebook changes', () => {
         const widget = createWidget();
-        widget.model!.metadata.set('foo', 1);
+        widget.model!.setMetadata('foo', 1);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onMetadataChanged'])
         );
@@ -499,7 +483,7 @@ describe('@jupyter/notebook', () => {
       it('should update the `codeMimetype`', () => {
         const widget = createWidget();
         const value = { name: 'python', codemirror_mode: 'python' };
-        widget.model!.metadata.set('language_info', value);
+        widget.model!.setMetadata('language_info', value);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onMetadataChanged'])
         );
@@ -509,7 +493,7 @@ describe('@jupyter/notebook', () => {
       it('should update the cell widget mimetype', () => {
         const widget = createWidget();
         const value = { name: 'python', mimetype: 'text/x-python' };
-        widget.model!.metadata.set('language_info', value);
+        widget.model!.setMetadata('language_info', value);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onMetadataChanged'])
         );
@@ -528,20 +512,10 @@ describe('@jupyter/notebook', () => {
       });
     });
 
-    describe('#onCellMoved()', () => {
-      it('should be called when a cell is moved', () => {
-        const widget = createWidget();
-        widget.model!.fromJSON(utils.DEFAULT_CONTENT);
-        widget.model!.cells.move(0, 1);
-        expect(widget.methods).toEqual(expect.arrayContaining(['onCellMoved']));
-      });
-    });
-
     describe('#onCellRemoved()', () => {
       it('should be called when a cell is removed', () => {
         const widget = createWidget();
-        const cell = widget.model!.cells.get(0);
-        widget.model!.cells.removeValue(cell);
+        widget.model!.sharedModel.deleteCell(0);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onCellRemoved'])
         );
@@ -559,33 +533,36 @@ describe('@jupyter/notebook', () => {
 
       describe('#createCodeCell({})', () => {
         it('should create a `CodeCell`', () => {
-          const contentFactory = new StaticNotebook.ContentFactory();
-          const model = new CodeCellModel({});
+          const contentFactory = new StaticNotebook.ContentFactory({
+            editorFactory: utils.editorFactory
+          });
+          const model = new CodeCellModel();
           const codeOptions = { model, rendermime, contentFactory };
-          const parent = new StaticNotebook(options);
-          const widget = contentFactory.createCodeCell(codeOptions, parent);
+          const widget = contentFactory.createCodeCell(codeOptions);
           expect(widget).toBeInstanceOf(CodeCell);
         });
       });
 
       describe('#createMarkdownCell({})', () => {
         it('should create a `MarkdownCell`', () => {
-          const contentFactory = new StaticNotebook.ContentFactory();
-          const model = new MarkdownCellModel({});
+          const contentFactory = new StaticNotebook.ContentFactory({
+            editorFactory: utils.editorFactory
+          });
+          const model = new MarkdownCellModel();
           const mdOptions = { model, rendermime, contentFactory };
-          const parent = new StaticNotebook(options);
-          const widget = contentFactory.createMarkdownCell(mdOptions, parent);
+          const widget = contentFactory.createMarkdownCell(mdOptions);
           expect(widget).toBeInstanceOf(MarkdownCell);
         });
       });
 
       describe('#createRawCell()', () => {
         it('should create a `RawCell`', () => {
-          const contentFactory = new StaticNotebook.ContentFactory();
-          const model = new RawCellModel({});
+          const contentFactory = new StaticNotebook.ContentFactory({
+            editorFactory: utils.editorFactory
+          });
+          const model = new RawCellModel();
           const rawOptions = { model, contentFactory };
-          const parent = new StaticNotebook(options);
-          const widget = contentFactory.createRawCell(rawOptions, parent);
+          const widget = contentFactory.createRawCell(rawOptions);
           expect(widget).toBeInstanceOf(RawCell);
         });
       });
@@ -724,12 +701,13 @@ describe('@jupyter/notebook', () => {
         const widget = createActiveWidget();
         Widget.attach(widget, document.body);
         MessageLoop.sendMessage(widget, Widget.Msg.ActivateRequest);
-        const cell = widget.model!.contentFactory.createMarkdownCell({});
-        cell.value.text = '# Hello'; // Should be rendered with content.
-        widget.model!.cells.push(cell);
-        const child = widget.widgets[widget.widgets.length - 1] as MarkdownCell;
+        widget.model!.sharedModel.insertCell(0, {
+          cell_type: 'markdown',
+          source: '# Hello'
+        }); // Should be rendered with content.
+        const child = widget.widgets[0] as MarkdownCell;
         expect(child.rendered).toBe(true);
-        widget.activeCellIndex = widget.widgets.length - 1;
+        widget.activeCellIndex = 0;
         widget.mode = 'edit';
         expect(child.rendered).toBe(false);
       });
@@ -990,65 +968,86 @@ describe('@jupyter/notebook', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          checkSelection(widget, p[0], p[1], p[2]);
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            checkSelection(widget, p[0], p[1], p[2]);
+          });
+        }).not.toThrow();
       });
 
       it('should work when we only have an active cell, with no existing selection', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          if (p[0] === p[1]) {
-            checkSelection(widget, p[0], p[1], p[2], false);
-          }
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            if (p[0] === p[1]) {
+              checkSelection(widget, p[0], p[1], p[2], false);
+            }
+          });
+        }).not.toThrow();
       });
 
       it('should clip when the index is greater than the last index', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          checkSelection(widget, p[0], p[1], Number.MAX_SAFE_INTEGER);
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            checkSelection(widget, p[0], p[1], Number.MAX_SAFE_INTEGER);
+          });
+        }).not.toThrow();
       });
 
       it('should clip when the index is greater than the last index with no existing selection', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          if (p[0] === p[1]) {
-            checkSelection(widget, p[0], p[1], Number.MAX_SAFE_INTEGER, false);
-          }
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            if (p[0] === p[1]) {
+              checkSelection(
+                widget,
+                p[0],
+                p[1],
+                Number.MAX_SAFE_INTEGER,
+                false
+              );
+            }
+          });
+        }).not.toThrow();
       });
 
       it('should clip when the index is less than 0', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          checkSelection(widget, p[0], p[1], -10);
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            checkSelection(widget, p[0], p[1], -10);
+          });
+        }).not.toThrow();
       });
 
       it('should clip when the index is less than 0 with no existing selection', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
 
-        permutations.forEach(p => {
-          if (p[0] === p[1]) {
-            checkSelection(widget, p[0], p[1], -10, false);
-          }
-        });
+        expect(() => {
+          permutations.forEach(p => {
+            if (p[0] === p[1]) {
+              checkSelection(widget, p[0], p[1], -10, false);
+            }
+          });
+        }).not.toThrow();
       });
 
       it('handles the case of no cells', () => {
         const widget = createActiveWidget();
-        widget.model!.cells.clear();
+        widget.model!.sharedModel.deleteCellRange(
+          0,
+          widget.model!.sharedModel.cells.length
+        );
         expect(widget.widgets.length).toBe(0);
 
         // Set up a selection event listener.
@@ -1073,7 +1072,7 @@ describe('@jupyter/notebook', () => {
         widget.select(widget.widgets[3]);
         widget.activeCellIndex = 3;
 
-        expect(() => widget.getContiguousSelection()).toThrowError(
+        expect(() => widget.getContiguousSelection()).toThrow(
           /Selection not contiguous/
         );
       });
@@ -1088,13 +1087,13 @@ describe('@jupyter/notebook', () => {
 
         // Check if active cell is outside selection.
         widget.activeCellIndex = 0;
-        expect(() => widget.getContiguousSelection()).toThrowError(
+        expect(() => widget.getContiguousSelection()).toThrow(
           /Active cell not at endpoint of selection/
         );
 
         // Check if active cell is inside selection.
         widget.activeCellIndex = 2;
-        expect(() => widget.getContiguousSelection()).toThrowError(
+        expect(() => widget.getContiguousSelection()).toThrow(
           /Active cell not at endpoint of selection/
         );
       });
@@ -1109,7 +1108,10 @@ describe('@jupyter/notebook', () => {
 
       it('handles the case of no cells', () => {
         const widget = createActiveWidget();
-        widget.model!.cells.clear();
+        widget.model!.sharedModel.deleteCellRange(
+          0,
+          widget.model!.sharedModel.cells.length
+        );
         expect(widget.widgets.length).toBe(0);
 
         const selection = widget.getContiguousSelection();
@@ -1183,12 +1185,15 @@ describe('@jupyter/notebook', () => {
           expect(widget.activeCellIndex).toBe(0);
         });
 
-        it('should preserve "command" mode if in a markdown cell', () => {
-          const cell = widget.model!.contentFactory.createMarkdownCell({});
-          cell.value.text = '# Hello'; // Should be rendered with content.
-          widget.model!.cells.push(cell);
-          const count = widget.widgets.length;
-          const child = widget.widgets[count - 1] as MarkdownCell;
+        it('should preserve "command" mode if in a markdown cell', async () => {
+          widget.model!.sharedModel.insertCell(0, {
+            cell_type: 'markdown',
+            source: '# Hello'
+          });
+          const child = widget.widgets[0] as MarkdownCell;
+          if (!child.inViewport) {
+            await signalToPromise(child.inViewportChanged);
+          }
           expect(child.rendered).toBe(true);
           simulate(child.node, 'mousedown');
           expect(child.rendered).toBe(true);
@@ -1237,57 +1242,65 @@ describe('@jupyter/notebook', () => {
           expect(selected(widget)).toEqual([]);
         });
 
-        it('should leave a markdown cell rendered', () => {
-          const code = widget.model!.contentFactory.createCodeCell({});
-          const md = widget.model!.contentFactory.createMarkdownCell({});
-          md.value.text = '# Hello'; // Should be rendered with content.
-          widget.model!.cells.push(code);
-          widget.model!.cells.push(md);
-          const count = widget.widgets.length;
-          const codeChild = widget.widgets[count - 2];
-          const mdChild = widget.widgets[count - 1] as MarkdownCell;
+        it('should leave a markdown cell rendered', async () => {
+          widget.model!.sharedModel.insertCells(0, [
+            { cell_type: 'code' },
+            { cell_type: 'markdown', source: '# Hello' }
+          ]);
+          const codeChild = widget.widgets[0];
+          const mdChild = widget.widgets[1] as MarkdownCell;
+          if (!codeChild.inViewport) {
+            await signalToPromise(codeChild.inViewportChanged);
+          }
+          if (!mdChild.inViewport) {
+            await signalToPromise(mdChild.inViewportChanged);
+          }
           widget.select(codeChild);
           widget.select(mdChild);
-          widget.activeCellIndex = count - 2;
+          widget.activeCellIndex = 0;
           expect(mdChild.rendered).toBe(true);
-          simulate(codeChild.editorWidget.node, 'mousedown');
-          simulate(codeChild.editorWidget.node, 'focusin');
+          simulate(codeChild.editorWidget!.node, 'mousedown');
+          simulate(codeChild.editorWidget!.node, 'focusin');
           expect(mdChild.rendered).toBe(true);
           expect(widget.activeCell).toBe(codeChild);
           expect(widget.mode).toBe('edit');
         });
 
-        it('should remove selection and switch to command mode', () => {
-          const code = widget.model!.contentFactory.createCodeCell({});
-          const md = widget.model!.contentFactory.createMarkdownCell({});
-          widget.model!.cells.push(code);
-          widget.model!.cells.push(md);
-          const count = widget.widgets.length;
-          const codeChild = widget.widgets[count - 2];
-          const mdChild = widget.widgets[count - 1] as MarkdownCell;
+        it('should remove selection and switch to command mode', async () => {
+          widget.model!.sharedModel.insertCells(0, [
+            { cell_type: 'code' },
+            { cell_type: 'markdown', source: '# Hello' }
+          ]);
+          const codeChild = widget.widgets[0];
+          const mdChild = widget.widgets[1] as MarkdownCell;
+          if (!codeChild.inViewport) {
+            await signalToPromise(codeChild.inViewportChanged);
+          }
+          if (!mdChild.inViewport) {
+            await signalToPromise(mdChild.inViewportChanged);
+          }
           widget.select(codeChild);
           widget.select(mdChild);
-          widget.activeCellIndex = count - 2;
-          simulate(codeChild.editorWidget.node, 'mousedown');
-          simulate(codeChild.editorWidget.node, 'focusin');
+          widget.activeCellIndex = 0;
+          simulate(codeChild.editorWidget!.node, 'mousedown');
+          simulate(codeChild.editorWidget!.node, 'focusin');
           expect(widget.mode).toBe('edit');
-          simulate(codeChild.editorWidget.node, 'mousedown', { button: 2 });
+          simulate(codeChild.editorWidget!.node, 'mousedown', { button: 2 });
           expect(widget.isSelected(mdChild)).toBe(false);
           expect(widget.mode).toBe('command');
         });
 
         it('should have no effect on shift right click', () => {
-          const code = widget.model!.contentFactory.createCodeCell({});
-          const md = widget.model!.contentFactory.createMarkdownCell({});
-          widget.model!.cells.push(code);
-          widget.model!.cells.push(md);
-          const count = widget.widgets.length;
-          const codeChild = widget.widgets[count - 2];
-          const mdChild = widget.widgets[count - 1] as MarkdownCell;
+          widget.model!.sharedModel.insertCells(0, [
+            { cell_type: 'code' },
+            { cell_type: 'markdown', source: '# Hello' }
+          ]);
+          const codeChild = widget.widgets[0];
+          const mdChild = widget.widgets[1] as MarkdownCell;
           widget.select(codeChild);
           widget.select(mdChild);
-          widget.activeCellIndex = count - 2;
-          simulate(codeChild.editorWidget.node, 'mousedown', {
+          widget.activeCellIndex = 0;
+          simulate(codeChild.editorWidget!.node, 'mousedown', {
             shiftKey: true,
             button: 2
           });
@@ -1297,13 +1310,15 @@ describe('@jupyter/notebook', () => {
       });
 
       describe('dblclick', () => {
-        it('should unrender a markdown cell', () => {
-          const cell = widget.model!.contentFactory.createMarkdownCell({});
-          cell.value.text = '# Hello'; // Should be rendered with content.
-          widget.model!.cells.push(cell);
-          const child = widget.widgets[
-            widget.widgets.length - 1
-          ] as MarkdownCell;
+        it('should unrender a markdown cell', async () => {
+          widget.model!.sharedModel.insertCell(0, {
+            cell_type: 'markdown',
+            source: '# Hello'
+          });
+          const child = widget.widgets[0] as MarkdownCell;
+          if (!child.inViewport) {
+            await signalToPromise(child.inViewportChanged);
+          }
           expect(child.rendered).toBe(true);
           expect(widget.mode).toBe('command');
           simulate(child.node, 'dblclick');
@@ -1315,14 +1330,14 @@ describe('@jupyter/notebook', () => {
       describe('focusin', () => {
         it('should change to edit mode if a child cell takes focus', () => {
           const child = widget.widgets[0];
-          simulate(child.editorWidget.node, 'focusin');
+          simulate(child.editorWidget!.node, 'focusin');
           expect(widget.events).toEqual(expect.arrayContaining(['focusin']));
           expect(widget.mode).toBe('edit');
         });
 
         it('should change to command mode if the widget takes focus', () => {
           const child = widget.widgets[0];
-          simulate(child.editorWidget.node, 'focusin');
+          simulate(child.editorWidget!.node, 'focusin');
           expect(widget.events).toEqual(expect.arrayContaining(['focusin']));
           expect(widget.mode).toBe('edit');
           widget.events = [];
@@ -1342,7 +1357,7 @@ describe('@jupyter/notebook', () => {
           expect(widget.mode).toBe('command');
           MessageLoop.sendMessage(widget, Widget.Msg.ActivateRequest);
           expect(widget.mode).toBe('command');
-          expect(widget.activeCell!.editor.hasFocus()).toBe(false);
+          expect(widget.activeCell!.editor!.hasFocus()).toBe(false);
         });
 
         it('should set command mode', () => {
@@ -1399,18 +1414,14 @@ describe('@jupyter/notebook', () => {
         const child = widget.widgets[0];
         await framePromise();
         Widget.detach(widget);
-        expect(widget.methods).toEqual(
-          expect.arrayContaining(['onBeforeDetach'])
-        );
+        expect(widget.methods).toContain('onBeforeDetach');
         widget.events = [];
         simulate(widget.node, 'mousedown');
-        expect(widget.events).toEqual(
-          expect.not.arrayContaining(['mousedown'])
-        );
+        expect(widget.events).not.toContain('mousedown');
         simulate(widget.node, 'dblclick');
-        expect(widget.events).toEqual(expect.not.arrayContaining(['dblclick']));
+        expect(widget.events).not.toContain('dblclick');
         simulate(child.node, 'focusin');
-        expect(widget.events).toEqual(expect.not.arrayContaining(['focusin']));
+        expect(widget.events).not.toContain('focusin');
         widget.dispose();
       });
     });
@@ -1501,65 +1512,38 @@ describe('@jupyter/notebook', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
         widget.activeCellIndex = 1;
-        const cell = widget.model!.contentFactory.createCodeCell({});
-        widget.model!.cells.insert(1, cell);
+        widget.model!.sharedModel.insertCell(0, { cell_type: 'code' });
         expect(widget.activeCell).toBe(widget.widgets[2]);
       });
 
       describe('`edgeRequested` signal', () => {
-        it('should activate the previous cell if top is requested', () => {
+        it('should activate the previous cell if top is requested', async () => {
           const widget = createActiveWidget();
           widget.model!.fromJSON(utils.DEFAULT_CONTENT);
           widget.activeCellIndex = 1;
+          // Wait for the cell to be ready and the signal listener to be set
+          await sleep();
           const child = widget.widgets[widget.activeCellIndex];
-          (child.editor.edgeRequested as any).emit('top');
+          (child.editor!.edgeRequested as any).emit('top');
           expect(widget.activeCellIndex).toBe(0);
         });
 
-        it('should activate the next cell if bottom is requested', () => {
+        it('should activate the next cell if bottom is requested', async () => {
           const widget = createActiveWidget();
           widget.model!.fromJSON(utils.DEFAULT_CONTENT);
+          // Wait for the cell to be ready and the signal listener to be set
+          await sleep();
           const child = widget.widgets[widget.activeCellIndex];
-          (child.editor.edgeRequested as any).emit('bottom');
+          (child.editor!.edgeRequested as any).emit('bottom');
           expect(widget.activeCellIndex).toBe(1);
         });
       });
     });
 
-    describe('#onCellMoved()', () => {
-      it('should update the active cell index if necessary', () => {
-        const widget = createActiveWidget();
-
-        // [fromIndex, toIndex, activeIndex], starting with activeIndex=3.
-        const moves = [
-          [0, 2, 3],
-          [0, 3, 2],
-          [0, 4, 2],
-          [3, 2, 2],
-          [3, 3, 3],
-          [3, 4, 4],
-          [4, 2, 4],
-          [4, 3, 4],
-          [4, 5, 3]
-        ];
-
-        moves.forEach(m => {
-          const [fromIndex, toIndex, activeIndex] = m;
-          widget.model!.fromJSON(utils.DEFAULT_CONTENT);
-          const cell = widget.widgets[3];
-          widget.activeCellIndex = 3;
-          widget.model!.cells.move(fromIndex, toIndex);
-          expect(widget.activeCellIndex).toBe(activeIndex);
-          expect(widget.widgets[activeIndex]).toBe(cell);
-        });
-      });
-    });
-
     describe('#onCellRemoved()', () => {
       it('should post an `update-request', async () => {
         const widget = createActiveWidget();
-        const cell = widget.model!.cells.get(0);
-        widget.model!.cells.removeValue(cell);
+        widget.model!.sharedModel.deleteCell(0);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onCellRemoved'])
         );
@@ -1572,7 +1556,7 @@ describe('@jupyter/notebook', () => {
       it('should update the active cell if necessary', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
-        widget.model!.cells.remove(0);
+        widget.model!.sharedModel.deleteCell(0);
         expect(widget.activeCell).toBe(widget.widgets[0]);
       });
 
@@ -1580,26 +1564,9 @@ describe('@jupyter/notebook', () => {
         const widget = createActiveWidget();
         widget.model!.fromJSON(utils.DEFAULT_CONTENT);
         widget.activeCellIndex = 2;
-        widget.model!.cells.remove(1);
+        widget.model!.sharedModel.deleteCell(1);
         expect(widget.activeCell).toBe(widget.widgets[1]);
       });
     });
-
-    // WIP See https://github.com/jupyterlab/jupyterlab/issues/10526
-    describe('#virtualNotebook()', () => {
-      it('should render the last cell widget', () => {
-        const model = new NotebookModel();
-        const widget = new StaticNotebook(options);
-        widget.model = model;
-        widget.model!.fromJSON(utils.DEFAULT_CONTENT);
-        const cell = widget.widgets[5];
-        expect(
-          cell.inputArea.editorWidget.model.value.text.startsWith(
-            'from IPython.display import Latex'
-          )
-        ).toBe(true);
-        console.log();
-      });
-    });
   });
 });
diff --git a/packages/notebook/test/widgetfactory.spec.ts b/packages/notebook/test/widgetfactory.spec.ts
index 16a92636d616..b38ec7978e0b 100644
--- a/packages/notebook/test/widgetfactory.spec.ts
+++ b/packages/notebook/test/widgetfactory.spec.ts
@@ -3,10 +3,13 @@
 
 import { ToolbarButton } from '@jupyterlab/apputils';
 import { Context } from '@jupyterlab/docregistry';
-import { initNotebookContext } from '@jupyterlab/testutils';
-import { JupyterServer } from '@jupyterlab/testutils/lib/start_jupyter_server';
-import { toArray } from '@lumino/algorithm';
-import { INotebookModel, NotebookPanel, NotebookWidgetFactory } from '..';
+import { initNotebookContext } from '@jupyterlab/notebook/lib/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
+import {
+  INotebookModel,
+  NotebookPanel,
+  NotebookWidgetFactory
+} from '@jupyterlab/notebook';
 import * as utils from './utils';
 
 const rendermime = utils.defaultRenderMime();
@@ -14,9 +17,8 @@ const rendermime = utils.defaultRenderMime();
 const server = new JupyterServer();
 
 beforeAll(async () => {
-  jest.setTimeout(20000);
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -101,9 +103,8 @@ describe('@jupyterlab/notebook', () => {
       it('should populate the default toolbar items', () => {
         const factory = utils.createNotebookWidgetFactory();
         const panel = factory.createNew(context);
-        const items = toArray(panel.toolbar.names());
-        expect(items).toEqual(expect.arrayContaining(['save']));
-        expect(items).toEqual(expect.arrayContaining(['restart']));
+        // It will only contain the popup opener
+        expect(Array.from(panel.toolbar.names())).toHaveLength(1);
       });
 
       it('should populate the customized toolbar items', () => {
@@ -114,18 +115,18 @@ describe('@jupyterlab/notebook', () => {
         const factory = utils.createNotebookWidgetFactory(toolbarFactory);
         const panel = factory.createNew(context);
         const panel2 = factory.createNew(context);
-        expect(toArray(panel.toolbar.names())).toEqual([
+        expect(Array.from(panel.toolbar.names())).toEqual([
           'foo',
           'bar',
           'toolbar-popup-opener'
         ]);
-        expect(toArray(panel2.toolbar.names())).toEqual([
+        expect(Array.from(panel2.toolbar.names())).toEqual([
           'foo',
           'bar',
           'toolbar-popup-opener'
         ]);
-        expect(toArray(panel.toolbar.children()).length).toBe(3);
-        expect(toArray(panel2.toolbar.children()).length).toBe(3);
+        expect(Array.from(panel.toolbar.children()).length).toBe(3);
+        expect(Array.from(panel2.toolbar.children()).length).toBe(3);
       });
 
       it('should clone from the optional source widget', () => {
diff --git a/packages/notebook/tsconfig.json b/packages/notebook/tsconfig.json
index f5aa18068de7..ce6852d62132 100644
--- a/packages/notebook/tsconfig.json
+++ b/packages/notebook/tsconfig.json
@@ -4,7 +4,7 @@
     "outDir": "lib",
     "rootDir": "src"
   },
-  "include": ["src/*"],
+  "include": ["src/*", "src/default.json"],
   "references": [
     {
       "path": "../apputils"
@@ -15,12 +15,21 @@
     {
       "path": "../codeeditor"
     },
+    {
+      "path": "../codemirror"
+    },
     {
       "path": "../coreutils"
     },
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../documentsearch"
+    },
+    {
+      "path": "../lsp"
+    },
     {
       "path": "../nbformat"
     },
@@ -37,10 +46,10 @@
       "path": "../settingregistry"
     },
     {
-      "path": "../shared-models"
+      "path": "../statusbar"
     },
     {
-      "path": "../statusbar"
+      "path": "../toc"
     },
     {
       "path": "../translation"
diff --git a/packages/notebook/tsconfig.test.json b/packages/notebook/tsconfig.test.json
index 44f44a7f2405..292ca2572f14 100644
--- a/packages/notebook/tsconfig.test.json
+++ b/packages/notebook/tsconfig.test.json
@@ -11,12 +11,21 @@
     {
       "path": "../codeeditor"
     },
+    {
+      "path": "../codemirror"
+    },
     {
       "path": "../coreutils"
     },
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../documentsearch"
+    },
+    {
+      "path": "../lsp"
+    },
     {
       "path": "../nbformat"
     },
@@ -33,10 +42,10 @@
       "path": "../settingregistry"
     },
     {
-      "path": "../shared-models"
+      "path": "../statusbar"
     },
     {
-      "path": "../statusbar"
+      "path": "../toc"
     },
     {
       "path": "../translation"
@@ -48,49 +57,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../settingregistry"
-    },
-    {
-      "path": "../shared-models"
-    },
-    {
-      "path": "../statusbar"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/observables/.vscode/launch.json b/packages/observables/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/observables/.vscode/launch.json
+++ b/packages/observables/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/observables/babel.config.js b/packages/observables/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/observables/babel.config.js
+++ b/packages/observables/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/observables/jest.config.js b/packages/observables/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/observables/jest.config.js
+++ b/packages/observables/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/observables/package.json b/packages/observables/package.json
index bf01181e3f33..545217cbf9ba 100644
--- a/packages/observables/package.json
+++ b/packages/observables/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/observables",
-  "version": "4.6.6",
+  "version": "5.0.8",
   "description": "Data structures which may be observed for changes.",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -22,7 +22,8 @@
   },
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}"
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -31,25 +32,24 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0"
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/observables/src/observablejson.ts b/packages/observables/src/observablejson.ts
index d4a2feb0bbac..bcad224d5b92 100644
--- a/packages/observables/src/observablejson.ts
+++ b/packages/observables/src/observablejson.ts
@@ -28,9 +28,8 @@ export namespace IObservableJSON {
   /**
    * A type alias for observable JSON changed args.
    */
-  export type IChangedArgs = IObservableMap.IChangedArgs<
-    ReadonlyPartialJSONValue
-  >;
+  export type IChangedArgs =
+    IObservableMap.IChangedArgs<ReadonlyPartialJSONValue>;
 }
 
 /**
diff --git a/packages/observables/src/observablelist.ts b/packages/observables/src/observablelist.ts
index ed98699dde40..3690360557b2 100644
--- a/packages/observables/src/observablelist.ts
+++ b/packages/observables/src/observablelist.ts
@@ -1,21 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  ArrayExt,
-  ArrayIterator,
-  each,
-  IIterator,
-  IterableOrArrayLike,
-  toArray
-} from '@lumino/algorithm';
+import { ArrayExt } from '@lumino/algorithm';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 
 /**
  * A list which can be observed for changes.
  */
-export interface IObservableList<T> extends IDisposable {
+export interface IObservableList<T> extends IDisposable, Iterable<T> {
   /**
    * A signal emitted when the list has changed.
    */
@@ -34,19 +27,6 @@ export interface IObservableList<T> extends IDisposable {
    */
   length: number;
 
-  /**
-   * Create an iterator over the values in the list.
-   *
-   * @returns A new iterator starting at the front of the list.
-   *
-   * #### Complexity
-   * Constant.
-   *
-   * #### Iterator Validity
-   * No changes.
-   */
-  iter(): IIterator<T>;
-
   /**
    * Remove all values from the list.
    *
@@ -110,12 +90,12 @@ export interface IObservableList<T> extends IDisposable {
    * #### Undefined Behavior.
    * An `index` which is non-integral.
    */
-  insertAll(index: number, values: IterableOrArrayLike<T>): void;
+  insertAll(index: number, values: Iterable<T>): void;
 
   /**
    * Move a value from one index to another.
    *
-   * @parm fromIndex - The index of the element to move.
+   * @param fromIndex - The index of the element to move.
    *
    * @param toIndex - The index to move the element to.
    *
@@ -149,7 +129,7 @@ export interface IObservableList<T> extends IDisposable {
   /**
    * Push a set of values to the back of the list.
    *
-   * @param values - An iterable or array-like set of values to add.
+   * @param values - An iterable set of values to add.
    *
    * @returns The new length of the list.
    *
@@ -159,7 +139,7 @@ export interface IObservableList<T> extends IDisposable {
    * #### Iterator Validity
    * No changes.
    */
-  pushAll(values: IterableOrArrayLike<T>): number;
+  pushAll(values: Iterable<T>): number;
 
   /**
    * Remove and return the value at a specific index.
@@ -308,10 +288,10 @@ export class ObservableList<T> implements IObservableList<T> {
    * Construct a new observable map.
    */
   constructor(options: ObservableList.IOptions<T> = {}) {
-    if (options.values !== void 0) {
-      each(options.values, value => {
+    if (options.values) {
+      for (const value of options.values) {
         this._array.push(value);
-      });
+      }
     }
     this._itemCmp = options.itemCmp || Private.itemCmp;
   }
@@ -367,8 +347,8 @@ export class ObservableList<T> implements IObservableList<T> {
    * #### Iterator Validity
    * No changes.
    */
-  iter(): IIterator<T> {
-    return new ArrayIterator(this._array);
+  [Symbol.iterator](): IterableIterator<T> {
+    return this._array[Symbol.iterator]();
   }
 
   /**
@@ -569,7 +549,7 @@ export class ObservableList<T> implements IObservableList<T> {
   /**
    * Move a value from one index to another.
    *
-   * @parm fromIndex - The index of the element to move.
+   * @param fromIndex - The index of the element to move.
    *
    * @param toIndex - The index to move the element to.
    *
@@ -601,7 +581,7 @@ export class ObservableList<T> implements IObservableList<T> {
   /**
    * Push a set of values to the back of the list.
    *
-   * @param values - An iterable or array-like set of values to add.
+   * @param values - An iterable set of values to add.
    *
    * @returns The new length of the list.
    *
@@ -615,17 +595,17 @@ export class ObservableList<T> implements IObservableList<T> {
    * #### Iterator Validity
    * No changes.
    */
-  pushAll(values: IterableOrArrayLike<T>): number {
+  pushAll(values: Iterable<T>): number {
     const newIndex = this.length;
-    each(values, value => {
+    for (const value of values) {
       this._array.push(value);
-    });
+    }
     this._changed.emit({
       type: 'add',
       oldIndex: -1,
       newIndex,
       oldValues: [],
-      newValues: toArray(values)
+      newValues: Array.from(values)
     });
     return this.length;
   }
@@ -651,17 +631,17 @@ export class ObservableList<T> implements IObservableList<T> {
    * #### Undefined Behavior.
    * An `index` which is non-integral.
    */
-  insertAll(index: number, values: IterableOrArrayLike<T>): void {
+  insertAll(index: number, values: Iterable<T>): void {
     const newIndex = index;
-    each(values, value => {
+    for (const value of values) {
       ArrayExt.insert(this._array, index++, value);
-    });
+    }
     this._changed.emit({
       type: 'add',
       oldIndex: -2,
       newIndex,
       oldValues: [],
-      newValues: toArray(values)
+      newValues: Array.from(values)
     });
   }
 
@@ -715,7 +695,7 @@ export namespace ObservableList {
     /**
      * An optional initial set of values.
      */
-    values?: IterableOrArrayLike<T>;
+    values?: Iterable<T>;
 
     /**
      * The item comparison function for change detection on `set`.
@@ -733,7 +713,7 @@ namespace Private {
   /**
    * The default strict equality item cmp.
    */
-  export function itemCmp(first: any, second: any): boolean {
+  export function itemCmp<T>(first: T, second: T): boolean {
     return first === second;
   }
 }
diff --git a/packages/observables/src/observablemap.ts b/packages/observables/src/observablemap.ts
index df02f7d7d3a5..8e11386816ef 100644
--- a/packages/observables/src/observablemap.ts
+++ b/packages/observables/src/observablemap.ts
@@ -348,7 +348,7 @@ namespace Private {
   /**
    * The default strict equality item comparator.
    */
-  export function itemCmp(first: any, second: any): boolean {
+  export function itemCmp<T>(first: T, second: T): boolean {
     return first === second;
   }
 }
diff --git a/packages/observables/src/undoablelist.ts b/packages/observables/src/undoablelist.ts
index e055ac7ccc77..b7f6a6254c36 100644
--- a/packages/observables/src/undoablelist.ts
+++ b/packages/observables/src/undoablelist.ts
@@ -1,7 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { each } from '@lumino/algorithm';
 import { JSONValue } from '@lumino/coreutils';
 import { IObservableList, ObservableList } from './observablelist';
 
@@ -69,7 +68,8 @@ export interface IObservableUndoableList<T> extends IObservableList<T> {
  */
 export class ObservableUndoableList<T>
   extends ObservableList<T>
-  implements IObservableUndoableList<T> {
+  implements IObservableUndoableList<T>
+{
   /**
    * Construct a new undoable observable list.
    */
@@ -194,21 +194,21 @@ export class ObservableUndoableList<T>
     const serializer = this._serializer;
     switch (change.type) {
       case 'add':
-        each(change.newValues, () => {
+        for (let length = change.newValues.length; length > 0; length--) {
           this.remove(change.newIndex);
-        });
+        }
         break;
       case 'set':
         index = change.oldIndex;
-        each(change.oldValues, value => {
+        for (const value of change.oldValues) {
           this.set(index++, serializer.fromJSON(value));
-        });
+        }
         break;
       case 'remove':
         index = change.oldIndex;
-        each(change.oldValues, value => {
+        for (const value of change.oldValues) {
           this.insert(index++, serializer.fromJSON(value));
-        });
+        }
         break;
       case 'move':
         this.move(change.newIndex, change.oldIndex);
@@ -227,20 +227,20 @@ export class ObservableUndoableList<T>
     switch (change.type) {
       case 'add':
         index = change.newIndex;
-        each(change.newValues, value => {
+        for (const value of change.newValues) {
           this.insert(index++, serializer.fromJSON(value));
-        });
+        }
         break;
       case 'set':
         index = change.newIndex;
-        each(change.newValues, value => {
+        for (const value of change.newValues) {
           this.set(change.newIndex++, serializer.fromJSON(value));
-        });
+        }
         break;
       case 'remove':
-        each(change.oldValues, () => {
+        for (let length = change.oldValues.length; length > 0; length--) {
           this.remove(change.oldIndex);
-        });
+        }
         break;
       case 'move':
         this.move(change.oldIndex, change.newIndex);
@@ -257,13 +257,13 @@ export class ObservableUndoableList<T>
     change: IObservableList.IChangedArgs<T>
   ): IObservableList.IChangedArgs<JSONValue> {
     const oldValues: JSONValue[] = [];
-    each(change.oldValues, value => {
+    for (const value of change.oldValues) {
       oldValues.push(this._serializer.toJSON(value));
-    });
+    }
     const newValues: JSONValue[] = [];
-    each(change.newValues, value => {
+    for (const value of change.newValues) {
       newValues.push(this._serializer.toJSON(value));
-    });
+    }
     return {
       type: change.type,
       oldIndex: change.oldIndex,
@@ -289,7 +289,8 @@ export namespace ObservableUndoableList {
    * A default, identity serializer.
    */
   export class IdentitySerializer<T extends JSONValue>
-    implements ISerializer<T> {
+    implements ISerializer<T>
+  {
     /**
      * Identity serialize.
      */
diff --git a/packages/observables/test/modeldb.spec.ts b/packages/observables/test/modeldb.spec.ts
index 162a5e968dd4..3804cde2a02e 100644
--- a/packages/observables/test/modeldb.spec.ts
+++ b/packages/observables/test/modeldb.spec.ts
@@ -143,9 +143,9 @@ describe('@jupyterlab/observables', () => {
     });
 
     describe('#connected', () => {
-      it('should resolve immediately for an in-memory database', () => {
+      it('should resolve immediately for an in-memory database', async () => {
         const db = new ModelDB();
-        return db.connected;
+        await expect(db.connected).resolves.not.toThrow();
       });
     });
 
diff --git a/packages/observables/test/observablelist.spec.ts b/packages/observables/test/observablelist.spec.ts
index 766874e398c3..ab7a8487504f 100644
--- a/packages/observables/test/observablelist.spec.ts
+++ b/packages/observables/test/observablelist.spec.ts
@@ -2,7 +2,6 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { ObservableList } from '@jupyterlab/observables';
-import { toArray } from '@lumino/algorithm';
 
 describe('@jupyterlab/observables', () => {
   describe('ObservableList', () => {
@@ -15,7 +14,7 @@ describe('@jupyterlab/observables', () => {
       it('should accept an array argument', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         expect(value instanceof ObservableList).toBe(true);
-        expect(toArray(value)).toEqual([1, 2, 3]);
+        expect(Array.from(value)).toEqual([1, 2, 3]);
       });
     });
 
@@ -82,7 +81,7 @@ describe('@jupyterlab/observables', () => {
       it('should set the item at a specific index', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.set(1, 4);
-        expect(toArray(value)).toEqual([1, 4, 3]);
+        expect(Array.from(value)).toEqual([1, 4, 3]);
       });
 
       it('should trigger a changed signal', () => {
@@ -106,7 +105,7 @@ describe('@jupyterlab/observables', () => {
       it('should add an item to the end of the list', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.push(4);
-        expect(toArray(value)).toEqual([1, 2, 3, 4]);
+        expect(Array.from(value)).toEqual([1, 2, 3, 4]);
       });
 
       it('should return the new length of the list', () => {
@@ -135,7 +134,7 @@ describe('@jupyterlab/observables', () => {
       it('should insert an item into the list at a specific index', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.insert(1, 4);
-        expect(toArray(value)).toEqual([1, 4, 2, 3]);
+        expect(Array.from(value)).toEqual([1, 4, 2, 3]);
       });
 
       it('should trigger a changed signal', () => {
@@ -159,9 +158,9 @@ describe('@jupyterlab/observables', () => {
       it('should move an item from one index to another', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.move(1, 2);
-        expect(toArray(value)).toEqual([1, 3, 2]);
+        expect(Array.from(value)).toEqual([1, 3, 2]);
         value.move(2, 0);
-        expect(toArray(value)).toEqual([2, 1, 3]);
+        expect(Array.from(value)).toEqual([2, 1, 3]);
       });
 
       it('should trigger a changed signal', () => {
@@ -186,7 +185,7 @@ describe('@jupyterlab/observables', () => {
       it('should remove the first occurrence of a specific item from the list', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.removeValue(1);
-        expect(toArray(value)).toEqual([2, 3]);
+        expect(Array.from(value)).toEqual([2, 3]);
       });
 
       it('should return the index occupied by the item', () => {
@@ -221,7 +220,7 @@ describe('@jupyterlab/observables', () => {
       it('should remove the item at a specific index', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.remove(1);
-        expect(toArray(value)).toEqual([1, 3]);
+        expect(Array.from(value)).toEqual([1, 3]);
       });
 
       it('should return the item at the specified index', () => {
@@ -271,7 +270,7 @@ describe('@jupyterlab/observables', () => {
           expect(args.type).toBe('remove');
           expect(args.newIndex).toBe(0);
           expect(args.oldIndex).toBe(0);
-          expect(toArray(args.oldValues)).toEqual(values);
+          expect(Array.from(args.oldValues)).toEqual(values);
           expect(args.newValues.length).toBe(0);
           called = true;
         });
@@ -284,7 +283,7 @@ describe('@jupyterlab/observables', () => {
       it('should push an array of items to the end of the list', () => {
         const value = new ObservableList<number>({ values: [1] });
         value.pushAll([2, 3, 4]);
-        expect(toArray(value)).toEqual([1, 2, 3, 4]);
+        expect(Array.from(value)).toEqual([1, 2, 3, 4]);
       });
 
       it('should return the new length of the list', () => {
@@ -300,7 +299,7 @@ describe('@jupyterlab/observables', () => {
           expect(args.type).toBe('add');
           expect(args.newIndex).toBe(3);
           expect(args.oldIndex).toBe(-1);
-          expect(toArray(args.newValues)).toEqual([4, 5, 6]);
+          expect(Array.from(args.newValues)).toEqual([4, 5, 6]);
           expect(args.oldValues.length).toBe(0);
           called = true;
         });
@@ -313,7 +312,7 @@ describe('@jupyterlab/observables', () => {
       it('should push an array of items into a list', () => {
         const value = new ObservableList<number>({ values: [1, 2, 3] });
         value.insertAll(1, [2, 3, 4]);
-        expect(toArray(value)).toEqual([1, 2, 3, 4, 2, 3]);
+        expect(Array.from(value)).toEqual([1, 2, 3, 4, 2, 3]);
       });
 
       it('should trigger a changed signal', () => {
@@ -324,7 +323,7 @@ describe('@jupyterlab/observables', () => {
           expect(args.type).toBe('add');
           expect(args.newIndex).toBe(1);
           expect(args.oldIndex).toBe(-2);
-          expect(toArray(args.newValues)).toEqual([4, 5, 6]);
+          expect(Array.from(args.newValues)).toEqual([4, 5, 6]);
           expect(args.oldValues.length).toBe(0);
           called = true;
         });
@@ -338,7 +337,7 @@ describe('@jupyterlab/observables', () => {
         const values = [1, 2, 3, 4, 5, 6];
         const value = new ObservableList<number>({ values });
         value.removeRange(1, 3);
-        expect(toArray(value)).toEqual([1, 4, 5, 6]);
+        expect(Array.from(value)).toEqual([1, 4, 5, 6]);
       });
 
       it('should return the new length of the list', () => {
@@ -356,7 +355,7 @@ describe('@jupyterlab/observables', () => {
           expect(args.type).toBe('remove');
           expect(args.newIndex).toBe(-1);
           expect(args.oldIndex).toBe(1);
-          expect(toArray(args.oldValues)).toEqual([2, 3]);
+          expect(Array.from(args.oldValues)).toEqual([2, 3]);
           expect(args.newValues.length).toBe(0);
           called = true;
         });
diff --git a/packages/observables/tsconfig.test.json b/packages/observables/tsconfig.test.json
index 717c38a1f87b..e96af67102d5 100644
--- a/packages/observables/tsconfig.test.json
+++ b/packages/observables/tsconfig.test.json
@@ -6,7 +6,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/outputarea/.vscode/launch.json b/packages/outputarea/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/outputarea/.vscode/launch.json
+++ b/packages/outputarea/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/outputarea/babel.config.js b/packages/outputarea/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/outputarea/babel.config.js
+++ b/packages/outputarea/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/outputarea/jest.config.js b/packages/outputarea/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/outputarea/jest.config.js
+++ b/packages/outputarea/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/outputarea/package.json b/packages/outputarea/package.json
index c27ebd0cb6cf..4fd4474765ca 100644
--- a/packages/outputarea/package.json
+++ b/packages/outputarea/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/outputarea",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Notebook Output Area",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,34 +37,33 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "resize-observer-polyfill": "^1.5.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/outputarea/src/model.ts b/packages/outputarea/src/model.ts
index 36b47d22cf74..11ff15a2fa8a 100644
--- a/packages/outputarea/src/model.ts
+++ b/packages/outputarea/src/model.ts
@@ -4,7 +4,7 @@
 import * as nbformat from '@jupyterlab/nbformat';
 import { IObservableList, ObservableList } from '@jupyterlab/observables';
 import { IOutputModel, OutputModel } from '@jupyterlab/rendermime';
-import { each, map, toArray } from '@lumino/algorithm';
+import { map } from '@lumino/algorithm';
 import { JSONExt } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
@@ -14,12 +14,14 @@ import { ISignal, Signal } from '@lumino/signaling';
  */
 export interface IOutputAreaModel extends IDisposable {
   /**
-   * A signal emitted when the model state changes.
+   * A signal emitted when the output item changes.
+   *
+   * The number is the index of the output that changed.
    */
-  readonly stateChanged: ISignal<IOutputAreaModel, void>;
+  readonly stateChanged: ISignal<IOutputAreaModel, number>;
 
   /**
-   * A signal emitted when the model changes.
+   * A signal emitted when the list of items changes.
    */
   readonly changed: ISignal<IOutputAreaModel, IOutputAreaModel.ChangedArgs>;
 
@@ -78,11 +80,6 @@ export interface IOutputAreaModel extends IDisposable {
    * Serialize the model to JSON.
    */
   toJSON(): nbformat.IOutput[];
-
-  /**
-   * The maximum number of output items to display on top and bottom of cell output.
-   */
-  maxNumberOutputs?: number;
 }
 
 /**
@@ -140,24 +137,26 @@ export class OutputAreaModel implements IOutputAreaModel {
       options.contentFactory || OutputAreaModel.defaultContentFactory;
     this.list = new ObservableList<IOutputModel>();
     if (options.values) {
-      each(options.values, value => {
-        this._add(value);
-      });
+      for (const value of options.values) {
+        const index = this._add(value) - 1;
+        const item = this.list.get(index);
+        item.changed.connect(this._onGenericChange, this);
+      }
     }
     this.list.changed.connect(this._onListChanged, this);
   }
 
   /**
-   * A signal emitted when the model state changes.
+   * A signal emitted when an item changes.
    */
-  get stateChanged(): ISignal<IOutputAreaModel, void> {
+  get stateChanged(): ISignal<IOutputAreaModel, number> {
     return this._stateChanged;
   }
 
   /**
-   * A signal emitted when the model changes.
+   * A signal emitted when the list of items changes.
    */
-  get changed(): ISignal<this, IOutputAreaModel.ChangedArgs> {
+  get changed(): ISignal<IOutputAreaModel, IOutputAreaModel.ChangedArgs> {
     return this._changed;
   }
 
@@ -187,11 +186,11 @@ export class OutputAreaModel implements IOutputAreaModel {
     }
     const trusted = (this._trusted = value);
     for (let i = 0; i < this.list.length; i++) {
-      let item = this.list.get(i);
-      const value = item.toJSON();
-      item.dispose();
-      item = this._createItem({ value, trusted });
+      const oldItem = this.list.get(i);
+      const value = oldItem.toJSON();
+      const item = this._createItem({ value, trusted });
       this.list.set(i, item);
+      oldItem.dispose();
     }
   }
 
@@ -267,9 +266,9 @@ export class OutputAreaModel implements IOutputAreaModel {
       this.clearNext = true;
       return;
     }
-    each(this.list, (item: IOutputModel) => {
+    for (const item of this.list) {
       item.dispose();
-    });
+    }
     this.list.clear();
   }
 
@@ -279,22 +278,26 @@ export class OutputAreaModel implements IOutputAreaModel {
    * #### Notes
    * This will clear any existing data.
    */
-  fromJSON(values: nbformat.IOutput[]) {
+  fromJSON(values: nbformat.IOutput[]): void {
     this.clear();
-    each(values, value => {
+    for (const value of values) {
       this._add(value);
-    });
+    }
   }
 
   /**
    * Serialize the model to JSON.
    */
   toJSON(): nbformat.IOutput[] {
-    return toArray(map(this.list, (output: IOutputModel) => output.toJSON()));
+    return Array.from(
+      map(this.list, (output: IOutputModel) => output.toJSON())
+    );
   }
 
   /**
    * Add a copy of the item to the list.
+   *
+   * @returns The list length
    */
   private _add(value: nbformat.IOutput): number {
     const trusted = this._trusted;
@@ -322,9 +325,9 @@ export class OutputAreaModel implements IOutputAreaModel {
       const item = this._createItem({ value, trusted });
       const index = this.length - 1;
       const prev = this.list.get(index);
-      prev.dispose();
       this.list.set(index, item);
-      return index;
+      prev.dispose();
+      return this.length;
     }
 
     if (nbformat.isStream(value)) {
@@ -355,7 +358,7 @@ export class OutputAreaModel implements IOutputAreaModel {
   protected shouldCombine(options: {
     value: nbformat.IOutput;
     lastModel: IOutputModel;
-  }) {
+  }): boolean {
     return true;
   }
 
@@ -377,7 +380,6 @@ export class OutputAreaModel implements IOutputAreaModel {
   private _createItem(options: IOutputModel.IOptions): IOutputModel {
     const factory = this.contentFactory;
     const item = factory.createOutputModel(options);
-    item.changed.connect(this._onGenericChange, this);
     return item;
   }
 
@@ -388,22 +390,61 @@ export class OutputAreaModel implements IOutputAreaModel {
     sender: IObservableList<IOutputModel>,
     args: IObservableList.IChangedArgs<IOutputModel>
   ) {
+    switch (args.type) {
+      case 'add':
+        args.newValues.forEach(item => {
+          item.changed.connect(this._onGenericChange, this);
+        });
+        break;
+      case 'remove':
+        args.oldValues.forEach(item => {
+          item.changed.disconnect(this._onGenericChange, this);
+        });
+        break;
+      case 'set':
+        args.newValues.forEach(item => {
+          item.changed.connect(this._onGenericChange, this);
+        });
+        args.oldValues.forEach(item => {
+          item.changed.disconnect(this._onGenericChange, this);
+        });
+        break;
+    }
     this._changed.emit(args);
   }
 
   /**
    * Handle a change to an item.
    */
-  private _onGenericChange(): void {
-    this._stateChanged.emit(void 0);
+  private _onGenericChange(itemModel: IOutputModel): void {
+    let idx: number;
+    let item: IOutputModel | null = null;
+    for (idx = 0; idx < this.list.length; idx++) {
+      item = this.list.get(idx);
+      if (item === itemModel) {
+        break;
+      }
+    }
+    if (item != null) {
+      this._stateChanged.emit(idx);
+      this._changed.emit({
+        type: 'set',
+        newIndex: idx,
+        oldIndex: idx,
+        oldValues: [item],
+        newValues: [item]
+      });
+    }
   }
 
-  private _lastStream: string;
+  private _lastStream = '';
   private _lastName: 'stdout' | 'stderr';
   private _trusted = false;
   private _isDisposed = false;
-  private _stateChanged = new Signal<IOutputAreaModel, void>(this);
-  private _changed = new Signal<this, IOutputAreaModel.ChangedArgs>(this);
+  private _stateChanged = new Signal<OutputAreaModel, number>(this);
+  private _changed = new Signal<OutputAreaModel, IOutputAreaModel.ChangedArgs>(
+    this
+  );
 }
 
 /**
diff --git a/packages/outputarea/src/widget.ts b/packages/outputarea/src/widget.ts
index 7d00744501ff..22a1ee60b558 100644
--- a/packages/outputarea/src/widget.ts
+++ b/packages/outputarea/src/widget.ts
@@ -6,6 +6,11 @@ import * as nbformat from '@jupyterlab/nbformat';
 import { IOutputModel, IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { Kernel, KernelMessage } from '@jupyterlab/services';
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
 import {
   JSONObject,
   PromiseDelegate,
@@ -15,9 +20,8 @@ import {
 } from '@lumino/coreutils';
 import { Message } from '@lumino/messaging';
 import { AttachedProperty } from '@lumino/properties';
-import { Signal } from '@lumino/signaling';
+import { ISignal, Signal } from '@lumino/signaling';
 import { Panel, PanelLayout, Widget } from '@lumino/widgets';
-import ResizeObserver from 'resize-observer-polyfill';
 import { IOutputAreaModel } from './model';
 
 /**
@@ -70,6 +74,11 @@ const STDIN_PROMPT_CLASS = 'jp-Stdin-prompt';
  */
 const STDIN_INPUT_CLASS = 'jp-Stdin-input';
 
+/**
+ * The overlay that can be clicked to switch between output scrolling modes.
+ */
+const OUTPUT_PROMPT_OVERLAY = 'jp-OutputArea-promptOverlay';
+
 /** ****************************************************************************
  * OutputArea
  ******************************************************************************/
@@ -89,13 +98,14 @@ export class OutputArea extends Widget {
    */
   constructor(options: OutputArea.IOptions) {
     super();
+    super.layout = new PanelLayout();
     this.addClass(OUTPUT_AREA_CLASS);
-
     this.contentFactory =
-      options.contentFactory || OutputArea.defaultContentFactory;
-    this.layout = new PanelLayout();
+      options.contentFactory ?? OutputArea.defaultContentFactory;
     this.rendermime = options.rendermime;
     this._maxNumberOutputs = options.maxNumberOutputs ?? Infinity;
+    this._translator = options.translator ?? nullTranslator;
+    this._inputHistoryScope = options.inputHistoryScope ?? 'global';
 
     const model = (this.model = options.model);
     for (
@@ -108,6 +118,9 @@ export class OutputArea extends Widget {
     }
     model.changed.connect(this.onModelChanged, this);
     model.stateChanged.connect(this.onStateChanged, this);
+    if (options.promptOverlay) {
+      this._addPromptOverlay();
+    }
   }
 
   /**
@@ -115,11 +128,6 @@ export class OutputArea extends Widget {
    */
   readonly contentFactory: OutputArea.IContentFactory;
 
-  /**
-   * Narrow the type of OutputArea's layout prop
-   */
-  readonly layout: PanelLayout;
-
   /**
    * The model used by the widget.
    */
@@ -130,6 +138,13 @@ export class OutputArea extends Widget {
    */
   readonly rendermime: IRenderMimeRegistry;
 
+  /**
+   * Narrow the type of OutputArea's layout prop
+   */
+  get layout(): PanelLayout {
+    return super.layout as PanelLayout;
+  }
+
   /**
    * A read-only sequence of the children widgets in the output area.
    */
@@ -138,7 +153,7 @@ export class OutputArea extends Widget {
   }
 
   /**
-   * A public signal used to indicate the number of outputs has changed.
+   * A public signal used to indicate the number of displayed outputs has changed.
    *
    * #### Notes
    * This is useful for parents who want to apply styling based on the number
@@ -179,7 +194,9 @@ export class OutputArea extends Widget {
     // Make sure there were no input widgets.
     if (this.widgets.length) {
       this._clear();
-      this.outputLengthChanged.emit(this.model.length);
+      this.outputLengthChanged.emit(
+        Math.min(this.model.length, this._maxNumberOutputs)
+      );
     }
 
     // Handle published messages.
@@ -196,6 +213,13 @@ export class OutputArea extends Widget {
     };
   }
 
+  /**
+   * Signal emitted when an output area is requesting an input.
+   */
+  get inputRequested(): ISignal<OutputArea, void> {
+    return this._inputRequested;
+  }
+
   /**
    * The maximum number of output items to display on top and bottom of cell output.
    *
@@ -279,9 +303,30 @@ export class OutputArea extends Widget {
     );
   }
 
+  /**
+   * Emitted when user requests toggling of the output scrolling mode.
+   */
+  get toggleScrolling(): ISignal<OutputArea, void> {
+    return this._toggleScrolling;
+  }
+
+  /**
+   * Add overlay allowing to toggle scrolling.
+   */
+  private _addPromptOverlay() {
+    const overlay = document.createElement('div');
+    overlay.className = OUTPUT_PROMPT_OVERLAY;
+    const trans = this._translator.load('jupyterlab');
+    overlay.title = trans.__('Toggle output scrolling');
+    overlay.addEventListener('click', () => {
+      this._toggleScrolling.emit();
+    });
+    this.node.appendChild(overlay);
+  }
+
   /**
    * Update indices in _displayIdMap in response to element remove from model items
-   * *
+   *
    * @param startIndex - The index of first element removed
    *
    * @param count - The number of elements removed from model items
@@ -308,16 +353,27 @@ export class OutputArea extends Widget {
   /**
    * Follow changes on the output model state.
    */
-  protected onStateChanged(sender: IOutputAreaModel): void {
+  protected onStateChanged(
+    sender: IOutputAreaModel,
+    change: number | void
+  ): void {
     const outputLength = Math.min(this.model.length, this._maxNumberOutputs);
-    for (let i = 0; i < outputLength; i++) {
-      this._setOutput(i, this.model.get(i));
+    if (change) {
+      if (change >= this._maxNumberOutputs) {
+        // Bail early
+        return;
+      }
+      this._setOutput(change, this.model.get(change));
+    } else {
+      for (let i = 0; i < outputLength; i++) {
+        this._setOutput(i, this.model.get(i));
+      }
     }
     this.outputLengthChanged.emit(outputLength);
   }
 
   /**
-   * Clear the widget inputs and outputs.
+   * Clear the widget outputs.
    */
   private _clear(): void {
     // Bail if there is no work to do.
@@ -383,7 +439,9 @@ export class OutputArea extends Widget {
       parent_header: msg.header,
       prompt: stdinPrompt,
       password,
-      future
+      future,
+      translator: this._translator,
+      inputHistoryScope: this._inputHistoryScope
     });
     input.addClass(OUTPUT_AREA_OUTPUT_CLASS);
     panel.addWidget(input);
@@ -394,6 +452,8 @@ export class OutputArea extends Widget {
     }
     this.layout.addWidget(panel);
 
+    this._inputRequested.emit();
+
     /**
      * Wait for the stdin to complete, add it to the model (so it persists)
      * and remove the stdin widget.
@@ -420,12 +480,10 @@ export class OutputArea extends Widget {
     if (index >= this._maxNumberOutputs) {
       return;
     }
-
     const panel = this.layout.widgets[index] as Panel;
-    const renderer = (panel.widgets
-      ? panel.widgets[1]
-      : panel) as IRenderMime.IRenderer;
-
+    const renderer = (
+      panel.widgets ? panel.widgets[1] : panel
+    ) as IRenderMime.IRenderer;
     // Check whether it is safe to reuse renderer:
     // - Preferred mime type has not changed
     // - Isolation has not changed
@@ -434,7 +492,6 @@ export class OutputArea extends Widget {
       model.trusted ? 'any' : 'ensure'
     );
     if (
-      renderer.renderModel &&
       Private.currentPreferredMimetype.get(renderer) === mimeType &&
       OutputArea.isIsolated(mimeType, model.metadata) ===
         renderer instanceof Private.IsolatedRenderer
@@ -456,6 +513,7 @@ export class OutputArea extends Widget {
     if (index > this._maxNumberOutputs) {
       return;
     }
+
     const layout = this.layout as PanelLayout;
 
     if (index === this._maxNumberOutputs) {
@@ -543,7 +601,8 @@ export class OutputArea extends Widget {
     output.renderModel(model).catch(error => {
       // Manually append error message to output
       const pre = document.createElement('pre');
-      pre.textContent = `Javascript Error: ${error.message}`;
+      const trans = this._translator.load('jupyterlab');
+      pre.textContent = trans.__('Javascript Error: %1', error.message);
       output.node.appendChild(pre);
 
       // Remove mime-type-specific CSS classes
@@ -640,7 +699,6 @@ export class OutputArea extends Widget {
     executionCount: number | null = null
   ): Panel {
     const panel = new Private.OutputPanel();
-
     panel.addClass(OUTPUT_AREA_ITEM_CLASS);
 
     const prompt = this.contentFactory.createOutputPrompt();
@@ -653,21 +711,24 @@ export class OutputArea extends Widget {
     return panel;
   }
 
-  private _minHeightTimeout: number | null = null;
+  private _displayIdMap = new Map<string, number[]>();
   private _future: Kernel.IShellFuture<
     KernelMessage.IExecuteRequestMsg,
     KernelMessage.IExecuteReplyMsg
   >;
-  private _displayIdMap = new Map<string, number[]>();
-  private _outputTracker = new WidgetTracker<Widget>({
-    namespace: UUID.uuid4()
-  });
-
   /**
    * The maximum outputs to show in the trimmed
    * output area.
    */
   private _maxNumberOutputs: number;
+  private _minHeightTimeout: number | null = null;
+  private _inputRequested = new Signal<OutputArea, void>(this);
+  private _toggleScrolling = new Signal<OutputArea, void>(this);
+  private _outputTracker = new WidgetTracker<Widget>({
+    namespace: UUID.uuid4()
+  });
+  private _translator: ITranslator;
+  private _inputHistoryScope: 'global' | 'session' = 'global';
 }
 
 export class SimplifiedOutputArea extends OutputArea {
@@ -686,10 +747,17 @@ export class SimplifiedOutputArea extends OutputArea {
    */
   protected createOutputItem(model: IOutputModel): Widget | null {
     const output = this.createRenderedMimetype(model);
-    if (output) {
-      output.addClass(OUTPUT_AREA_OUTPUT_CLASS);
+
+    if (!output) {
+      return null;
     }
-    return output;
+
+    const panel = new Private.OutputPanel();
+    panel.addClass(OUTPUT_AREA_ITEM_CLASS);
+
+    output.addClass(OUTPUT_AREA_OUTPUT_CLASS);
+    panel.addWidget(output);
+    return panel;
   }
 }
 
@@ -720,6 +788,21 @@ export namespace OutputArea {
      * The maximum number of output items to display on top and bottom of cell output.
      */
     maxNumberOutputs?: number;
+
+    /**
+     * Whether to show prompt overlay emitting `toggleScrolling` signal.
+     */
+    promptOverlay?: boolean;
+
+    /**
+     * Translator
+     */
+    readonly translator?: ITranslator;
+
+    /**
+     * Whether to split stdin line history by kernel session or keep globally accessible.
+     */
+    inputHistoryScope?: 'global' | 'session';
   }
 
   /**
@@ -873,24 +956,82 @@ export interface IStdin extends Widget {
  * The default stdin widget.
  */
 export class Stdin extends Widget implements IStdin {
-  private static _history: string[] = [];
+  private static _history: Map<string, string[]> = new Map();
+
+  private static _historyIx(key: string, ix: number): number | undefined {
+    const history = Stdin._history.get(key);
+    if (!history) {
+      return undefined;
+    }
+    const len = history.length;
+    // wrap nonpositive ix to nonnegative ix
+    if (ix <= 0) {
+      return len + ix;
+    }
+  }
 
-  private static _historyAt(ix: number): string | undefined {
-    const len = Stdin._history.length;
-    // interpret negative ix exactly like Array.at
-    ix = ix < 0 ? len + ix : ix;
+  private static _historyAt(key: string, ix: number): string | undefined {
+    const history = Stdin._history.get(key);
+    if (!history) {
+      return undefined;
+    }
+    const len = history.length;
+    const ixpos = Stdin._historyIx(key, ix);
 
-    if (ix < len) {
-      return Stdin._history[ix];
+    if (ixpos !== undefined && ixpos < len) {
+      return history[ixpos];
     }
     // return undefined if ix is out of bounds
   }
 
-  private static _historyPush(line: string): void {
-    Stdin._history.push(line);
-    if (Stdin._history.length > 1000) {
+  private static _historyPush(key: string, line: string): void {
+    const history = Stdin._history.get(key)!;
+    history.push(line);
+    if (history.length > 1000) {
       // truncate line history if it's too long
-      Stdin._history.shift();
+      history.shift();
+    }
+  }
+
+  private static _historySearch(
+    key: string,
+    pat: string,
+    ix: number,
+    reverse = true
+  ): number | undefined {
+    const history = Stdin._history.get(key)!;
+    const len = history.length;
+    const ixpos = Stdin._historyIx(key, ix);
+    const substrFound = (x: string) => x.search(pat) !== -1;
+
+    if (ixpos === undefined) {
+      return;
+    }
+
+    if (reverse) {
+      if (ixpos === 0) {
+        // reverse search fails if already at start of history
+        return;
+      }
+
+      const ixFound = (history.slice(0, ixpos) as any).findLastIndex(
+        substrFound
+      );
+      if (ixFound !== -1) {
+        // wrap ix to negative
+        return ixFound - len;
+      }
+    } else {
+      if (ixpos >= len - 1) {
+        // forward search fails if already at end of history
+        return;
+      }
+
+      const ixFound = history.slice(ixpos + 1).findIndex(substrFound);
+      if (ixFound !== -1) {
+        // wrap ix to negative and adjust for slice
+        return ixFound - len + ixpos + 1;
+      }
     }
   }
 
@@ -902,15 +1043,28 @@ export class Stdin extends Widget implements IStdin {
       node: Private.createInputWidgetNode(options.prompt, options.password)
     });
     this.addClass(STDIN_CLASS);
-    this._history_ix = 0;
-    this._input = this.node.getElementsByTagName('input')[0];
-    this._input.focus();
-    // make users aware of the line history feature
-    this._input.placeholder = '↑↓ for history';
     this._future = options.future;
+    this._historyIndex = 0;
+    this._historyKey =
+      options.inputHistoryScope === 'session'
+        ? options.parent_header.session
+        : '';
+    this._historyPat = '';
     this._parentHeader = options.parent_header;
-    this._value = options.prompt + ' ';
     this._password = options.password;
+    this._trans = (options.translator ?? nullTranslator).load('jupyterlab');
+    this._value = options.prompt + ' ';
+
+    this._input = this.node.getElementsByTagName('input')[0];
+    // make users aware of the line history feature
+    this._input.placeholder = this._trans.__(
+      '↑↓ for history. Search history with c-↑/c-↓'
+    );
+
+    // initialize line history
+    if (!Stdin._history.has(this._historyKey)) {
+      Stdin._history.set(this._historyKey, []);
+    }
   }
 
   /**
@@ -932,63 +1086,111 @@ export class Stdin extends Widget implements IStdin {
    */
   handleEvent(event: KeyboardEvent): void {
     const input = this._input;
+
     if (event.type === 'keydown') {
-      if (event.key === 'ArrowUp') {
-        const historyLine = Stdin._historyAt(this._history_ix - 1);
+      if (event.key === 'Enter') {
+        this.resetSearch();
+
+        this._future.sendInputReply(
+          {
+            status: 'ok',
+            value: input.value
+          },
+          this._parentHeader
+        );
+        if (this._password) {
+          this._value += '········';
+        } else {
+          this._value += input.value;
+          Stdin._historyPush(this._historyKey, input.value);
+        }
+        this._promise.resolve(void 0);
+      } else if (event.key === 'Escape') {
+        // currently this gets clobbered by the documentsearch:end command at the notebook level
+        this.resetSearch();
+        input.blur();
+      } else if (
+        event.ctrlKey &&
+        (event.key === 'ArrowUp' || event.key === 'ArrowDown')
+      ) {
+        // if _historyPat is blank, use input as search pattern. Otherwise, reuse the current search pattern
+        if (this._historyPat === '') {
+          this._historyPat = input.value;
+        }
+
+        const reverse = event.key === 'ArrowUp';
+        const searchHistoryIx = Stdin._historySearch(
+          this._historyKey,
+          this._historyPat,
+          this._historyIndex,
+          reverse
+        );
+
+        if (searchHistoryIx !== undefined) {
+          const historyLine = Stdin._historyAt(
+            this._historyKey,
+            searchHistoryIx
+          );
+          if (historyLine !== undefined) {
+            if (this._historyIndex === 0) {
+              this._valueCache = input.value;
+            }
+
+            this._setInputValue(historyLine);
+            this._historyIndex = searchHistoryIx;
+            // The default action for ArrowUp is moving to first character
+            // but we want to keep the cursor at the end.
+            event.preventDefault();
+          }
+        }
+      } else if (event.key === 'ArrowUp') {
+        this.resetSearch();
+
+        const historyLine = Stdin._historyAt(
+          this._historyKey,
+          this._historyIndex - 1
+        );
         if (historyLine) {
-          if (this._history_ix === 0) {
-            this._value_cache = input.value;
+          if (this._historyIndex === 0) {
+            this._valueCache = input.value;
           }
           this._setInputValue(historyLine);
-          --this._history_ix;
+          --this._historyIndex;
           // The default action for ArrowUp is moving to first character
           // but we want to keep the cursor at the end.
           event.preventDefault();
         }
       } else if (event.key === 'ArrowDown') {
-        if (this._history_ix === 0) {
+        this.resetSearch();
+
+        if (this._historyIndex === 0) {
           // do nothing
-        } else if (this._history_ix === -1) {
-          this._setInputValue(this._value_cache);
-          ++this._history_ix;
+        } else if (this._historyIndex === -1) {
+          this._setInputValue(this._valueCache);
+          ++this._historyIndex;
         } else {
-          const historyLine = Stdin._historyAt(this._history_ix + 1);
+          const historyLine = Stdin._historyAt(
+            this._historyKey,
+            this._historyIndex + 1
+          );
           if (historyLine) {
             this._setInputValue(historyLine);
-            ++this._history_ix;
+            ++this._historyIndex;
           }
         }
-      } else if (event.key === 'Enter') {
-        this._future.sendInputReply(
-          {
-            status: 'ok',
-            value: input.value
-          },
-          this._parentHeader
-        );
-        if (this._password) {
-          this._value += '········';
-        } else {
-          this._value += input.value;
-          Stdin._historyPush(input.value);
-        }
-        this._promise.resolve(void 0);
       }
     }
   }
 
+  protected resetSearch(): void {
+    this._historyPat = '';
+  }
+
   /**
    * Handle `after-attach` messages sent to the widget.
    */
   protected onAfterAttach(msg: Message): void {
     this._input.addEventListener('keydown', this);
-    this.update();
-  }
-
-  /**
-   * Handle `update-request` messages sent to the widget.
-   */
-  protected onUpdateRequest(msg: Message): void {
     this._input.focus();
   }
 
@@ -1006,14 +1208,17 @@ export class Stdin extends Widget implements IStdin {
     this._input.setSelectionRange(value.length, value.length);
   }
 
-  private _history_ix: number;
-  private _parentHeader?: KernelMessage.IInputReplyMsg['parent_header'];
   private _future: Kernel.IShellFuture;
+  private _historyIndex: number;
+  private _historyKey: string;
+  private _historyPat: string;
   private _input: HTMLInputElement;
-  private _value: string;
-  private _value_cache: string;
-  private _promise = new PromiseDelegate<void>();
+  private _parentHeader: KernelMessage.IInputReplyMsg['parent_header'];
   private _password: boolean;
+  private _promise = new PromiseDelegate<void>();
+  private _trans: TranslationBundle;
+  private _value: string;
+  private _valueCache: string;
 }
 
 export namespace Stdin {
@@ -1039,7 +1244,17 @@ export namespace Stdin {
     /**
      * The header of the input_request message.
      */
-    parent_header?: KernelMessage.IInputReplyMsg['parent_header'];
+    parent_header: KernelMessage.IInputReplyMsg['parent_header'];
+
+    /**
+     * Translator
+     */
+    readonly translator?: ITranslator;
+
+    /**
+     * Whether to split stdin line history by kernel session or keep globally accessible.
+     */
+    inputHistoryScope?: 'global' | 'session';
   }
 }
 
@@ -1077,7 +1292,8 @@ namespace Private {
    */
   export class IsolatedRenderer
     extends Widget
-    implements IRenderMime.IRenderer {
+    implements IRenderMime.IRenderer
+  {
     /**
      * Create an isolated renderer.
      */
@@ -1191,19 +1407,19 @@ namespace Private {
      * The widget will be disposed on click after calling the callback.
      *
      * @param maxNumberOutputs Maximal number of outputs to display
-     * @param onClick Callback on click event on the widget
+     * @param _onClick Callback on click event on the widget
      */
     constructor(
       maxNumberOutputs: number,
       onClick: (event: MouseEvent) => void
     ) {
       const node = document.createElement('div');
+      const title = `The first ${maxNumberOutputs} are displayed`;
+      const msg = 'Show more outputs';
       node.insertAdjacentHTML(
         'afterbegin',
-        `<a>
-          <pre>Output of this cell has been trimmed on the initial display.</pre>
-          <pre>Displaying the first ${maxNumberOutputs} top outputs.</pre>
-          <pre>Click on this message to get the complete output.</pre>
+        `<a title=${title}>
+          <pre>${msg}</pre>
         </a>`
       );
       super({
diff --git a/packages/outputarea/style/base.css b/packages/outputarea/style/base.css
index 93ce9b8354b4..cfde32e48850 100644
--- a/packages/outputarea/style/base.css
+++ b/packages/outputarea/style/base.css
@@ -3,13 +3,6 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-/*-----------------------------------------------------------------------------
-| Private CSS variables
-|----------------------------------------------------------------------------*/
-
-:root {
-}
-
 /*-----------------------------------------------------------------------------
 | Main OutputArea
 | OutputArea has a list of Outputs
@@ -22,13 +15,12 @@
 .jp-OutputArea-child {
   display: flex;
   flex-direction: row;
-}
-
-body[data-format='mobile'] .jp-OutputArea-child {
-  flex-direction: column;
+  width: 100%;
+  overflow: hidden;
 }
 
 .jp-OutputPrompt {
+  width: var(--jp-cell-prompt-width);
   flex: 0 0 var(--jp-cell-prompt-width);
   color: var(--jp-cell-outprompt-font-color);
   font-family: var(--jp-cell-prompt-font-family);
@@ -38,11 +30,13 @@ body[data-format='mobile'] .jp-OutputArea-child {
   font-size: var(--jp-code-font-size);
   border: var(--jp-border-width) solid transparent;
   opacity: var(--jp-cell-prompt-opacity);
+
   /* Right align prompt text, don't wrap to handle large prompt numbers */
   text-align: right;
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
+
   /* Disable text selection */
   -webkit-user-select: none;
   -moz-user-select: none;
@@ -50,12 +44,8 @@ body[data-format='mobile'] .jp-OutputArea-child {
   user-select: none;
 }
 
-body[data-format='mobile'] .jp-OutputPrompt {
-  flex: 0 0 auto;
-  text-align: left;
-}
-
 .jp-OutputArea-output {
+  width: 100%;
   height: auto;
   overflow: auto;
   user-select: text;
@@ -64,15 +54,37 @@ body[data-format='mobile'] .jp-OutputPrompt {
   -ms-user-select: text;
 }
 
+.jp-OutputArea .jp-RenderedText {
+  padding-left: 1ch;
+}
+
+/**
+ * Prompt overlay.
+ */
+
+.jp-OutputArea-promptOverlay {
+  position: absolute;
+  top: 0;
+  width: var(--jp-cell-prompt-width);
+  height: 100%;
+  opacity: 0.5;
+}
+
+.jp-OutputArea-promptOverlay:hover {
+  background: var(--jp-layout-color2);
+  box-shadow: inset 0 0 1px var(--jp-inverse-layout-color0);
+  cursor: zoom-out;
+}
+
+.jp-mod-outputsScrolled .jp-OutputArea-promptOverlay:hover {
+  cursor: zoom-in;
+}
+
 .jp-OutputArea-child .jp-OutputArea-output {
   flex-grow: 1;
   flex-shrink: 1;
 }
 
-body[data-format='mobile'] .jp-OutputArea-child .jp-OutputArea-output {
-  margin-left: var(--jp-notebook-padding);
-}
-
 /**
  * Isolated output.
  */
@@ -82,7 +94,7 @@ body[data-format='mobile'] .jp-OutputArea-child .jp-OutputArea-output {
 }
 
 /*
-When drag events occur, `p-mod-override-cursor` is added to the body.
+When drag events occur, `lm-mod-override-cursor` is added to the body.
 Because iframes steal all cursor events, the following two rules are necessary
 to suppress pointer events while resize drags are occurring. There may be a
 better solution to this problem.
@@ -91,7 +103,7 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated {
   position: relative;
 }
 
-body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
+body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated::before {
   content: '';
   position: absolute;
   top: 0;
@@ -105,8 +117,8 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
 
 .jp-OutputArea-output pre {
   border: none;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
   overflow-x: auto;
   overflow-y: auto;
   word-break: break-all;
@@ -151,10 +163,11 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
   margin: 0;
 }
 
-.jp-TrimmedOutputs a {
-  margin: 10px;
-  text-decoration: none;
-  cursor: pointer;
+.jp-TrimmedOutputs pre {
+  background: var(--jp-layout-color3);
+  font-size: calc(var(--jp-code-font-size) * 1.4);
+  text-align: center;
+  text-transform: uppercase;
 }
 
 /* Hide the gutter in case of
@@ -177,7 +190,8 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
 |----------------------------------------------------------------------------*/
 
 .jp-OutputArea-output.jp-OutputArea-executeResult {
-  margin-left: 0px;
+  margin-left: 0;
+  width: 100%;
   flex: 1 1 auto;
 }
 
@@ -207,11 +221,13 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
   background-color: inherit;
   width: 42%;
   min-width: 200px;
+
   /* make sure input baseline aligns with prompt */
   vertical-align: baseline;
+
   /* padding + margin = 0.5em between prompt and cursor */
-  padding: 0em 0.25em;
-  margin: 0em 0.25em;
+  padding: 0 0.25em;
+  margin: 0 0.25em;
   flex: 0 0 70%;
 }
 
@@ -239,3 +255,53 @@ body.lm-mod-override-cursor .jp-OutputArea-output.jp-mod-isolated:before {
 .jp-LinkedOutputView .jp-OutputArea-output:only-child {
   height: 100%;
 }
+
+/*-----------------------------------------------------------------------------
+| Printing
+|----------------------------------------------------------------------------*/
+
+@media print {
+  .jp-OutputArea-child {
+    display: table;
+    table-layout: fixed;
+    break-inside: avoid-page;
+  }
+
+  .jp-OutputArea-prompt {
+    display: table-cell;
+    vertical-align: top;
+  }
+
+  .jp-OutputArea-output {
+    display: table-cell;
+  }
+}
+
+/*-----------------------------------------------------------------------------
+| Mobile
+|----------------------------------------------------------------------------*/
+@media only screen and (width <= 760px) {
+  .jp-OutputArea-child {
+    flex-direction: column;
+  }
+
+  .jp-OutputPrompt {
+    flex: 0 0 auto;
+    text-align: left;
+  }
+
+  .jp-OutputArea-promptOverlay {
+    display: none;
+  }
+}
+
+/* Trimmed outputs warning */
+.jp-TrimmedOutputs > a {
+  margin: 10px;
+  text-decoration: none;
+  cursor: pointer;
+}
+
+.jp-TrimmedOutputs > a:hover {
+  text-decoration: none;
+}
diff --git a/packages/outputarea/style/index.css b/packages/outputarea/style/index.css
index 6b77e5b7639d..1a67c827e139 100644
--- a/packages/outputarea/style/index.css
+++ b/packages/outputarea/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/outputarea/test/model.spec.ts b/packages/outputarea/test/model.spec.ts
index edbb31a3a048..10bcea52cc4e 100644
--- a/packages/outputarea/test/model.spec.ts
+++ b/packages/outputarea/test/model.spec.ts
@@ -3,7 +3,7 @@
 
 import { OutputAreaModel } from '@jupyterlab/outputarea';
 import { OutputModel } from '@jupyterlab/rendermime';
-import { NBTestUtils } from '@jupyterlab/testutils';
+import { DEFAULT_OUTPUTS } from '@jupyterlab/rendermime/lib/testutils';
 
 describe('outputarea/model', () => {
   let model: OutputAreaModel;
@@ -25,7 +25,7 @@ describe('outputarea/model', () => {
       it('should accept options', () => {
         const contentFactory = new OutputAreaModel.ContentFactory();
         model = new OutputAreaModel({
-          values: NBTestUtils.DEFAULT_OUTPUTS,
+          values: DEFAULT_OUTPUTS,
           contentFactory,
           trusted: true
         });
@@ -45,7 +45,7 @@ describe('outputarea/model', () => {
           expect(args.oldValues.length).toBe(0);
           called = true;
         });
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         expect(called).toBe(true);
       });
     });
@@ -53,10 +53,10 @@ describe('outputarea/model', () => {
     describe('#stateChanged', () => {
       it('should be emitted when an item changes', () => {
         let called = false;
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         model.stateChanged.connect((sender, args) => {
           expect(sender).toBe(model);
-          expect(args).toBeUndefined();
+          expect(args).toEqual(0);
           called = true;
         });
         const output = model.get(0);
@@ -68,7 +68,7 @@ describe('outputarea/model', () => {
     describe('#length', () => {
       it('should get the length of the items in the model', () => {
         expect(model.length).toBe(0);
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         expect(model.length).toBe(1);
       });
     });
@@ -80,8 +80,8 @@ describe('outputarea/model', () => {
 
       it('should cause all of the cells to `set`', () => {
         let called = 0;
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[1]);
+        model.add(DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[1]);
         model.changed.connect(() => {
           called++;
         });
@@ -108,7 +108,7 @@ describe('outputarea/model', () => {
 
     describe('#dispose()', () => {
       it('should dispose of the resources used by the model', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         model.dispose();
         expect(model.isDisposed).toBe(true);
         expect(model.length).toBe(0);
@@ -123,28 +123,28 @@ describe('outputarea/model', () => {
 
     describe('#get()', () => {
       it('should get the item at the specified index', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         const output = model.get(0);
-        expect(output.type).toBe(NBTestUtils.DEFAULT_OUTPUTS[0].output_type);
+        expect(output.type).toBe(DEFAULT_OUTPUTS[0].output_type);
       });
 
       it('should return `undefined` if out of range', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         expect(model.get(1)).toBeUndefined();
       });
     });
 
     describe('#add()', () => {
       it('should add an output', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         expect(model.length).toBe(1);
       });
 
       it('should consolidate consecutive stream outputs of the same kind', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[1]);
+        model.add(DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[1]);
         expect(model.length).toBe(2);
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[2]);
+        model.add(DEFAULT_OUTPUTS[2]);
         expect(model.length).toBe(2);
       });
 
@@ -172,7 +172,7 @@ describe('outputarea/model', () => {
 
     describe('#clear()', () => {
       it('should clear all of the output', () => {
-        for (const output of NBTestUtils.DEFAULT_OUTPUTS) {
+        for (const output of DEFAULT_OUTPUTS) {
           model.add(output);
         }
         model.clear();
@@ -180,18 +180,38 @@ describe('outputarea/model', () => {
       });
 
       it('should wait for next add if requested', () => {
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        model.add(DEFAULT_OUTPUTS[0]);
         model.clear(true);
         expect(model.length).toBe(1);
-        model.add(NBTestUtils.DEFAULT_OUTPUTS[1]);
+        model.add(DEFAULT_OUTPUTS[1]);
         expect(model.length).toBe(1);
       });
     });
 
+    describe('#set', () => {
+      it('should disconnect the replaced output', () => {
+        const model = new OutputAreaModel({
+          values: [DEFAULT_OUTPUTS[0]]
+        });
+
+        const output = model.get(0);
+        let called = false;
+        model.stateChanged.connect((sender, args) => {
+          called = true;
+        });
+
+        model.set(0, DEFAULT_OUTPUTS[1]);
+
+        output.setData({ ...output.data });
+
+        expect(called).toEqual(false);
+      });
+    });
+
     describe('#fromJSON()', () => {
       it('should deserialize the model from JSON', () => {
         model.clear();
-        model.fromJSON(NBTestUtils.DEFAULT_OUTPUTS);
+        model.fromJSON(DEFAULT_OUTPUTS);
         expect(model.toJSON().length).toBe(5);
       });
     });
@@ -199,7 +219,7 @@ describe('outputarea/model', () => {
     describe('#toJSON()', () => {
       it('should serialize the model to JSON', () => {
         expect(model.toJSON()).toEqual([]);
-        model.fromJSON(NBTestUtils.DEFAULT_OUTPUTS);
+        model.fromJSON(DEFAULT_OUTPUTS);
         expect(model.toJSON().length).toBe(5);
       });
     });
@@ -210,7 +230,7 @@ describe('outputarea/model', () => {
       it('should create an output model', () => {
         const factory = new OutputAreaModel.ContentFactory();
         const model = factory.createOutputModel({
-          value: NBTestUtils.DEFAULT_OUTPUTS[0]
+          value: DEFAULT_OUTPUTS[0]
         });
         expect(model).toBeInstanceOf(OutputModel);
       });
diff --git a/packages/outputarea/test/widget.spec.ts b/packages/outputarea/test/widget.spec.ts
index 23243b831e8f..a018027b40a8 100644
--- a/packages/outputarea/test/widget.spec.ts
+++ b/packages/outputarea/test/widget.spec.ts
@@ -2,19 +2,18 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { SessionContext } from '@jupyterlab/apputils';
+import { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 import {
   IOutputAreaModel,
   OutputArea,
   OutputAreaModel
 } from '@jupyterlab/outputarea';
 import { KernelManager } from '@jupyterlab/services';
+import { JupyterServer } from '@jupyterlab/testing';
 import {
-  createSessionContext,
-  defaultRenderMime,
-  flakyIt as it,
-  JupyterServer,
-  NBTestUtils
-} from '@jupyterlab/testutils';
+  DEFAULT_OUTPUTS,
+  defaultRenderMime
+} from '@jupyterlab/rendermime/lib/testutils';
 import { Message } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { simulate } from 'simulate-event';
@@ -43,24 +42,26 @@ class LogOutputArea extends OutputArea {
   }
 }
 
-const server = new JupyterServer();
+describe('outputarea/widget', () => {
+  let server: JupyterServer;
 
-beforeAll(async () => {
-  jest.setTimeout(20000);
-  await server.start();
-});
+  jest.retryTimes(3);
 
-afterAll(async () => {
-  await server.shutdown();
-});
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
+  }, 30000);
+
+  afterAll(async () => {
+    await server.shutdown();
+  });
 
-describe('outputarea/widget', () => {
   let widget: LogOutputArea;
   let model: OutputAreaModel;
 
   beforeEach(() => {
     model = new OutputAreaModel({
-      values: NBTestUtils.DEFAULT_OUTPUTS,
+      values: DEFAULT_OUTPUTS,
       trusted: true
     });
     widget = new LogOutputArea({ rendermime, model });
@@ -119,20 +120,14 @@ describe('outputarea/widget', () => {
 
           if (widget.widgets.length > maxNumberOutputs) {
             // eslint-disable-next-line jest/no-conditional-expect
-            expect(widget.widgets[widget.widgets.length - 1].node.textContent)
-              .toContain(`
-          Output of this cell has been trimmed on the initial display.
-          Displaying the first 2 top outputs.
-          Click on this message to get the complete output.
-        `);
+            expect(
+              widget.widgets[widget.widgets.length - 1].node.textContent
+            ).toContain('Show more outputs');
           } else {
             // eslint-disable-next-line jest/no-conditional-expect
-            expect(widget.widgets[widget.widgets.length - 1].node.textContent)
-              .not.toContain(`
-          Output of this cell has been trimmed on the initial display.
-          Displaying the first 2 top outputs.
-          Click on this message to get the complete output.
-        `);
+            expect(
+              widget.widgets[widget.widgets.length - 1].node.textContent
+            ).not.toContain('Show more outputs');
           }
         }
       );
@@ -192,9 +187,7 @@ describe('outputarea/widget', () => {
       });
 
       it('should get the number of child widgets', () => {
-        expect(widget.widgets.length).toBe(
-          NBTestUtils.DEFAULT_OUTPUTS.length - 1
-        );
+        expect(widget.widgets.length).toBe(DEFAULT_OUTPUTS.length - 1);
         widget.model.clear();
         expect(widget.widgets.length).toBe(0);
       });
@@ -215,9 +208,9 @@ describe('outputarea/widget', () => {
       });
 
       it('should execute code on a kernel and send outputs to the model', async () => {
-        const future = sessionContext.session?.kernel?.requestExecute({
+        const future = sessionContext.session!.kernel!.requestExecute({
           code: CODE
-        })!;
+        });
         widget.future = future;
         const reply = await future.done;
         expect(reply!.content.execution_count).toBeTruthy();
@@ -226,10 +219,10 @@ describe('outputarea/widget', () => {
       });
 
       it('should clear existing outputs', async () => {
-        widget.model.fromJSON(NBTestUtils.DEFAULT_OUTPUTS);
-        const future = sessionContext.session?.kernel?.requestExecute({
+        widget.model.fromJSON(DEFAULT_OUTPUTS);
+        const future = sessionContext.session!.kernel!.requestExecute({
           code: CODE
-        })!;
+        });
         widget.future = future;
         const reply = await future.done;
         expect(reply!.content.execution_count).toBeTruthy();
@@ -241,7 +234,7 @@ describe('outputarea/widget', () => {
       it('should handle an added output', () => {
         widget.model.clear();
         widget.methods = [];
-        widget.model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        widget.model.add(DEFAULT_OUTPUTS[0]);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onModelChanged'])
         );
@@ -249,7 +242,7 @@ describe('outputarea/widget', () => {
       });
 
       it('should handle a clear', () => {
-        widget.model.fromJSON(NBTestUtils.DEFAULT_OUTPUTS);
+        widget.model.fromJSON(DEFAULT_OUTPUTS);
         widget.methods = [];
         widget.model.clear();
         expect(widget.methods).toEqual(
@@ -260,9 +253,9 @@ describe('outputarea/widget', () => {
 
       it('should handle a set', () => {
         widget.model.clear();
-        widget.model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        widget.model.add(DEFAULT_OUTPUTS[0]);
         widget.methods = [];
-        widget.model.add(NBTestUtils.DEFAULT_OUTPUTS[0]);
+        widget.model.add(DEFAULT_OUTPUTS[0]);
         expect(widget.methods).toEqual(
           expect.arrayContaining(['onModelChanged'])
         );
@@ -344,7 +337,7 @@ describe('outputarea/widget', () => {
       });
 
       it('should clear existing outputs', async () => {
-        widget.model.fromJSON(NBTestUtils.DEFAULT_OUTPUTS);
+        widget.model.fromJSON(DEFAULT_OUTPUTS);
         const reply = await OutputArea.execute(CODE, widget, sessionContext);
         expect(reply!.content.execution_count).toBeTruthy();
         expect(model.length).toBe(1);
@@ -476,21 +469,6 @@ describe('outputarea/widget', () => {
           await kernel.shutdown();
           kernel.dispose();
         });
-
-        it('should create a stdin widget without parent header', async () => {
-          const manager = new KernelManager();
-          const kernel = await manager.startNew();
-          const factory = new OutputArea.ContentFactory();
-          const future = kernel.requestExecute({ code: CODE });
-          const options = {
-            prompt: 'hello',
-            password: false,
-            future
-          };
-          expect(factory.createStdin(options)).toBeInstanceOf(Widget);
-          await kernel.shutdown();
-          kernel.dispose();
-        });
       });
     });
 
diff --git a/packages/outputarea/tsconfig.json b/packages/outputarea/tsconfig.json
index e4e0c39ed150..959f13e2f272 100644
--- a/packages/outputarea/tsconfig.json
+++ b/packages/outputarea/tsconfig.json
@@ -23,6 +23,9 @@
     },
     {
       "path": "../services"
+    },
+    {
+      "path": "../translation"
     }
   ]
 }
diff --git a/packages/outputarea/tsconfig.test.json b/packages/outputarea/tsconfig.test.json
index f539db3f8efd..6be35cfed8aa 100644
--- a/packages/outputarea/tsconfig.test.json
+++ b/packages/outputarea/tsconfig.test.json
@@ -21,28 +21,13 @@
       "path": "../services"
     },
     {
-      "path": "."
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../nbformat"
+      "path": "../translation"
     },
     {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../rendermime-interfaces"
+      "path": "."
     },
     {
-      "path": "../services"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/pdf-extension/package.json b/packages/pdf-extension/package.json
index 0d3247f0ccf4..f03b781a6f3d 100644
--- a/packages/pdf-extension/package.json
+++ b/packages/pdf-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/pdf-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - PDF Viewer",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,15 +37,15 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/pdf-extension/src/index.ts b/packages/pdf-extension/src/index.ts
index e71449dba849..b498982729e0 100644
--- a/packages/pdf-extension/src/index.ts
+++ b/packages/pdf-extension/src/index.ts
@@ -108,7 +108,7 @@ export class RenderedPDF extends Widget implements IRenderMime.IRenderer {
   /**
    * Dispose of the resources held by the pdf widget.
    */
-  dispose() {
+  dispose(): void {
     if (this._disposable) {
       this._disposable.dispose();
     }
@@ -134,10 +134,12 @@ export const rendererFactory: IRenderMime.IRendererFactory = {
 const extensions: IRenderMime.IExtension | IRenderMime.IExtension[] = [
   {
     id: '@jupyterlab/pdf-extension:factory',
+    description: 'Adds renderer for PDF content.',
     rendererFactory,
     dataType: 'string',
     documentWidgetFactoryOptions: {
       name: 'PDF',
+      // TODO: translate label
       modelName: 'base64',
       primaryFileType: 'PDF',
       fileTypes: ['PDF'],
diff --git a/packages/pdf-extension/style/base.css b/packages/pdf-extension/style/base.css
index cc97b55ec768..6bf4454bfd7c 100644
--- a/packages/pdf-extension/style/base.css
+++ b/packages/pdf-extension/style/base.css
@@ -17,7 +17,7 @@
 }
 
 /*
-When drag events occur, `p-mod-override-cursor` is added to the body.
+When drag events occur, `lm-mod-override-cursor` is added to the body.
 This reuses the same CSS selector logic as jp-IFrame to prevent embedded
 PDFs from swallowing cursor events.
 */
@@ -25,7 +25,7 @@ body.lm-mod-override-cursor .jp-PDFContainer {
   position: relative;
 }
 
-body.lm-mod-override-cursor .jp-PDFContainer:before {
+body.lm-mod-override-cursor .jp-PDFContainer::before {
   content: '';
   position: absolute;
   z-index: 10;
diff --git a/packages/pdf-extension/style/index.css b/packages/pdf-extension/style/index.css
index 8fe68ab59e76..175c3e71145f 100644
--- a/packages/pdf-extension/style/index.css
+++ b/packages/pdf-extension/style/index.css
@@ -5,5 +5,4 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/property-inspector/package.json b/packages/property-inspector/package.json
index 08891ed7f357..b51d594a57c9 100644
--- a/packages/property-inspector/package.json
+++ b/packages/property-inspector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/property-inspector",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "A property inspector display for widgets",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -25,7 +25,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc",
@@ -33,18 +34,19 @@
     "watch": "tsc -w --listEmittedFiles"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/property-inspector/src/index.ts b/packages/property-inspector/src/index.ts
index 926aed0404a9..bc9fced68b7b 100644
--- a/packages/property-inspector/src/index.ts
+++ b/packages/property-inspector/src/index.ts
@@ -6,12 +6,12 @@
  */
 
 import { ILabShell } from '@jupyterlab/application';
-import { ReactWidget } from '@jupyterlab/apputils';
 import {
   ITranslator,
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+import { ReactWidget } from '@jupyterlab/ui-components';
 import { ISignal, Signal } from '@lumino/signaling';
 import { FocusTracker, SingletonLayout, Widget } from '@lumino/widgets';
 import * as React from 'react';
@@ -24,7 +24,8 @@ export { IPropertyInspector, IPropertyInspectorProvider };
  */
 abstract class PropertyInspectorProvider
   extends Widget
-  implements IPropertyInspectorProvider {
+  implements IPropertyInspectorProvider
+{
   /**
    * Construct a new Property Inspector.
    */
@@ -144,6 +145,24 @@ abstract class PropertyInspectorProvider
   private _inspectors = new Map<Widget, Private.PropertyInspector>();
 }
 
+/**
+ * {@link SideBarPropertyInspectorProvider} constructor options
+ */
+export interface ILabPropertyInspectorOptions {
+  /**
+   * Application shell
+   */
+  shell: ILabShell;
+  /**
+   * Widget placeholder
+   */
+  placeholder?: Widget;
+  /**
+   * Application translation
+   */
+  translator?: ITranslator;
+}
+
 /**
  * A class that adds a property inspector provider to the
  * JupyterLab sidebar.
@@ -152,13 +171,13 @@ export class SideBarPropertyInspectorProvider extends PropertyInspectorProvider
   /**
    * Construct a new Side Bar Property Inspector.
    */
-  constructor(
-    labshell: ILabShell,
-    placeholder?: Widget,
-    translator?: ITranslator
-  ) {
+  constructor({
+    shell,
+    placeholder,
+    translator
+  }: ILabPropertyInspectorOptions) {
     super();
-    this._labshell = labshell;
+    this._labshell = shell;
     this.translator = translator || nullTranslator;
     this._trans = this.translator.load('jupyterlab');
     const layout = (this.layout = new SingletonLayout());
@@ -174,7 +193,7 @@ export class SideBarPropertyInspectorProvider extends PropertyInspectorProvider
       this._placeholder.addClass('jp-PropertyInspector-placeholder');
     }
     layout.widget = this._placeholder;
-    labshell.currentChanged.connect(this._onShellCurrentChanged, this);
+    this._labshell.currentChanged.connect(this._onShellCurrentChanged, this);
     this._onShellCurrentChanged();
   }
 
@@ -262,7 +281,7 @@ namespace Private {
     /**
      * Whether the property inspector is disposed.
      */
-    get isDisposed() {
+    get isDisposed(): boolean {
       return this._isDisposed;
     }
 
diff --git a/packages/property-inspector/src/token.ts b/packages/property-inspector/src/token.ts
index b12e63d3eb32..74ae3c418bb5 100644
--- a/packages/property-inspector/src/token.ts
+++ b/packages/property-inspector/src/token.ts
@@ -55,5 +55,6 @@ export interface IPropertyInspectorProvider {
  * The property inspector provider token.
  */
 export const IPropertyInspectorProvider = new Token<IPropertyInspectorProvider>(
-  '@jupyterlab/property-inspector:IPropertyInspectorProvider'
+  '@jupyterlab/property-inspector:IPropertyInspectorProvider',
+  'A service to registry new widget in the property inspector side panel.'
 );
diff --git a/packages/property-inspector/style/index.css b/packages/property-inspector/style/index.css
index d94c5e43bec3..2a0c141c1cc8 100644
--- a/packages/property-inspector/style/index.css
+++ b/packages/property-inspector/style/index.css
@@ -5,7 +5,6 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/property-inspector/style/index.js b/packages/property-inspector/style/index.js
index f8bc91861237..0ab32500c093 100644
--- a/packages/property-inspector/style/index.js
+++ b/packages/property-inspector/style/index.js
@@ -5,7 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/application/style/index.js';
 
 import './base.css';
diff --git a/packages/property-inspector/tsconfig.json b/packages/property-inspector/tsconfig.json
index 308d22557211..e8b84062c73a 100644
--- a/packages/property-inspector/tsconfig.json
+++ b/packages/property-inspector/tsconfig.json
@@ -10,10 +10,10 @@
       "path": "../application"
     },
     {
-      "path": "../apputils"
+      "path": "../translation"
     },
     {
-      "path": "../translation"
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/rendermime-extension/package.json b/packages/rendermime-extension/package.json
index dc2315131d02..10705e3e4db5 100644
--- a/packages/rendermime-extension/package.json
+++ b/packages/rendermime-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/rendermime-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "A rendermime extension for JupyterLab",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,7 +24,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -33,16 +34,16 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/docmanager": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/rendermime-extension/src/index.ts b/packages/rendermime-extension/src/index.ts
index c7c9a264cc6b..7b654657191a 100644
--- a/packages/rendermime-extension/src/index.ts
+++ b/packages/rendermime-extension/src/index.ts
@@ -15,11 +15,13 @@ import { ISanitizer } from '@jupyterlab/apputils';
 import { IDocumentManager } from '@jupyterlab/docmanager';
 import {
   ILatexTypesetter,
+  IMarkdownParser,
+  IRenderMime,
   IRenderMimeRegistry,
   RenderMimeRegistry,
   standardRendererFactories
 } from '@jupyterlab/rendermime';
-import { ITranslator } from '@jupyterlab/translation';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
 namespace CommandIDs {
   export const handleLink = 'rendermime:handle-local-link';
@@ -30,8 +32,14 @@ namespace CommandIDs {
  */
 const plugin: JupyterFrontEndPlugin<IRenderMimeRegistry> = {
   id: '@jupyterlab/rendermime-extension:plugin',
-  requires: [ITranslator],
-  optional: [IDocumentManager, ILatexTypesetter, ISanitizer],
+  description: 'Provides the render mime registry.',
+  optional: [
+    IDocumentManager,
+    ILatexTypesetter,
+    ISanitizer,
+    IMarkdownParser,
+    ITranslator
+  ],
   provides: IRenderMimeRegistry,
   activate: activate,
   autoStart: true
@@ -47,12 +55,13 @@ export default plugin;
  */
 function activate(
   app: JupyterFrontEnd,
-  translator: ITranslator,
   docManager: IDocumentManager | null,
   latexTypesetter: ILatexTypesetter | null,
-  sanitizer: ISanitizer | null
+  sanitizer: IRenderMime.ISanitizer | null,
+  markdownParser: IMarkdownParser | null,
+  translator: ITranslator | null
 ): RenderMimeRegistry {
-  const trans = translator.load('jupyterlab');
+  const trans = (translator ?? nullTranslator).load('jupyterlab');
   if (docManager) {
     app.commands.addCommand(CommandIDs.handleLink, {
       label: trans.__('Handle Local Link'),
@@ -68,9 +77,8 @@ function activate(
           .then(() => {
             // Open the link with the default rendered widget factory,
             // if applicable.
-            const factory = docManager.registry.defaultRenderedWidgetFactory(
-              path
-            );
+            const factory =
+              docManager.registry.defaultRenderedWidgetFactory(path);
             const widget = docManager.openOrReveal(path, factory.name);
 
             // Handle the hash if one has been provided.
@@ -99,7 +107,8 @@ function activate(
           }
         },
     latexTypesetter: latexTypesetter ?? undefined,
-    translator: translator,
+    markdownParser: markdownParser ?? undefined,
+    translator: translator ?? undefined,
     sanitizer: sanitizer ?? undefined
   });
 }
diff --git a/packages/rendermime-interfaces/package.json b/packages/rendermime-interfaces/package.json
index 36c1999cf4af..3388a06fbf7c 100644
--- a/packages/rendermime-interfaces/package.json
+++ b/packages/rendermime-interfaces/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/rendermime-interfaces",
-  "version": "3.6.6",
+  "version": "3.8.8",
   "description": "JupyterLab - Interfaces for Mime Renderers",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -21,7 +21,8 @@
   "files": [
     "lib/*.d.ts",
     "lib/*.js.map",
-    "lib/*.js"
+    "lib/*.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -30,14 +31,13 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@lumino/coreutils": "^1.11.0 || ^2.1.2",
+    "@lumino/widgets": "^1.37.2 || ^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/rendermime-interfaces/src/index.ts b/packages/rendermime-interfaces/src/index.ts
index 66881b9ad004..e2558b1bce4a 100644
--- a/packages/rendermime-interfaces/src/index.ts
+++ b/packages/rendermime-interfaces/src/index.ts
@@ -7,9 +7,8 @@
  * @module rendermime-interfaces
  */
 
-import { ITranslator } from '@jupyterlab/translation';
-import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
-import { Widget } from '@lumino/widgets';
+import type { ReadonlyPartialJSONObject } from '@lumino/coreutils';
+import type { Widget } from '@lumino/widgets';
 
 /**
  * A namespace for rendermime associated interfaces.
@@ -73,7 +72,7 @@ export namespace IRenderMime {
    */
   export interface IToolbarItem {
     /**
-     * Item name
+     * Unique item name
      */
     name: string;
     /**
@@ -94,6 +93,12 @@ export namespace IRenderMime {
      */
     readonly name: string;
 
+    /**
+     * The label of the widget to display in dialogs.
+     * If not given, name is used instead.
+     */
+    readonly label?: string;
+
     /**
      * The name of the document model type.
      */
@@ -121,10 +126,15 @@ export namespace IRenderMime {
      */
     readonly defaultRendered?: ReadonlyArray<string>;
 
+    /**
+     * The application language translator.
+     */
+    readonly translator?: ITranslator;
+
     /**
      * A function returning a list of toolbar items to add to the toolbar.
      */
-    readonly toolbarFactory?: (widget?: IRenderer) => IToolbarItem[];
+    readonly toolbarFactory?: (widget?: Widget) => IToolbarItem[];
   }
 
   export namespace LabIcon {
@@ -151,8 +161,7 @@ export namespace IRenderMime {
      */
     export interface IRenderer {
       readonly render: (container: HTMLElement, options?: any) => void;
-      // TODO: make unrenderer optional once @lumino/virtualdom > 1.4.1 is used
-      readonly unrender: (container: HTMLElement) => void;
+      readonly unrender?: (container: HTMLElement, options?: any) => void;
     }
 
     /**
@@ -193,7 +202,7 @@ export namespace IRenderMime {
 
     /**
      * The icon for the file type. Can either be a string containing the name
-     * of an existing icon, or an object with {name, svgstr} fields, where
+     * of an existing icon, or an object with \{name, svgstr\} fields, where
      * svgstr is a string containing the raw contents of an svg file.
      */
     readonly icon?: LabIcon.IResolvable;
@@ -211,7 +220,7 @@ export namespace IRenderMime {
     /**
      * The file format for the file type ('text', 'base64', or 'json').
      */
-    readonly fileFormat?: string;
+    readonly fileFormat?: string | null;
   }
 
   /**
@@ -228,6 +237,15 @@ export namespace IRenderMime {
      */
     readonly id: string;
 
+    /**
+     * Extension description.
+     *
+     * #### Notes
+     * This can be used to provide user documentation on the feature
+     * brought by the extension.
+     */
+    readonly description?: string;
+
     /**
      * A renderer factory to be registered to render the MIME type.
      */
@@ -277,11 +295,6 @@ export namespace IRenderMime {
    * A widget which displays the contents of a mime model.
    */
   export interface IRenderer extends Widget {
-    /**
-     * The application language translator.
-     */
-    translator?: ITranslator;
-
     /**
      * Render a mime model.
      *
@@ -359,20 +372,55 @@ export namespace IRenderMime {
      */
     latexTypesetter: ILatexTypesetter | null;
 
+    /**
+     * The Markdown parser.
+     */
+    markdownParser?: IMarkdownParser | null;
+
     /**
      * The application language translator.
      */
     translator?: ITranslator;
   }
 
+  /**
+   * The options used to sanitize.
+   */
+  export interface ISanitizerOptions {
+    /**
+     * The allowed tags.
+     */
+    allowedTags?: string[];
+
+    /**
+     * The allowed attributes for a given tag.
+     */
+    allowedAttributes?: { [key: string]: string[] };
+
+    /**
+     * The allowed style values for a given tag.
+     */
+    allowedStyles?: { [key: string]: { [key: string]: RegExp[] } };
+  }
+
   /**
    * An object that handles html sanitization.
    */
   export interface ISanitizer {
+    /**
+     * @returns Whether to replace URLs by HTML anchors.
+     */
+    getAutolink?(): boolean;
+
     /**
      * Sanitize an HTML string.
+     *
+     * @param dirty - The dirty text.
+     * @param options - The optional sanitization options.
+     *
+     * @returns The sanitized string.
      */
-    sanitize(dirty: string): string;
+    sanitize(dirty: string, options?: ISanitizerOptions): string;
   }
 
   /**
@@ -429,13 +477,178 @@ export namespace IRenderMime {
      *
      * @param element - the DOM element to typeset. The typesetting may
      *   happen synchronously or asynchronously.
-     *
-     * #### Notes
-     * The application-wide rendermime object has a settable
-     * `latexTypesetter` property which is used wherever LaTeX
-     * typesetting is required. Extensions wishing to provide their
-     * own typesetter may replace that on the global `lab.rendermime`.
      */
     typeset(element: HTMLElement): void;
   }
+
+  /**
+   * The interface for a Markdown parser.
+   */
+  export interface IMarkdownParser {
+    /**
+     * Render a markdown source.
+     *
+     * @param source - The string to render.
+     * @returns - A promise of the string.
+     */
+    render(source: string): Promise<string>;
+  }
+
+  // ********************** //
+  // Translation interfaces //
+  // ********************** //
+
+  /**
+   * Bundle of gettext-based translation functions for a specific domain.
+   */
+  export type TranslationBundle = {
+    /**
+     * Alias for `gettext` (translate strings without number inflection)
+     * @param msgid message (text to translate)
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    __(msgid: string, ...args: any[]): string;
+    /**
+     * Alias for `ngettext` (translate accounting for plural forms)
+     * @param msgid message for singular
+     * @param msgid_plural message for plural
+     * @param n determines which plural form to use
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    _n(msgid: string, msgid_plural: string, n: number, ...args: any[]): string;
+    /**
+     * Alias for `pgettext` (translate in given context)
+     * @param msgctxt context
+     * @param msgid message (text to translate)
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    _p(msgctxt: string, msgid: string, ...args: any[]): string;
+    /**
+     * Alias for `npgettext` (translate accounting for plural forms in given context)
+     * @param msgctxt context
+     * @param msgid message for singular
+     * @param msgid_plural message for plural
+     * @param n number used to determine which plural form to use
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    _np(
+      msgctxt: string,
+      msgid: string,
+      msgid_plural: string,
+      n: number,
+      ...args: any[]
+    ): string;
+    /**
+     * Look up the message id in the catalog and return the corresponding message string.
+     * Otherwise, the message id is returned.
+     *
+     * @param msgid message (text to translate)
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    gettext(msgid: string, ...args: any[]): string;
+    /**
+     * Do a plural-forms lookup of a message id. msgid is used as the message id for
+     * purposes of lookup in the catalog, while n is used to determine which plural form
+     * to use. Otherwise, when n is 1 msgid is returned, and msgid_plural is returned in
+     * all other cases.
+     *
+     * @param msgid message for singular
+     * @param msgid_plural message for plural
+     * @param n determines which plural form to use
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    ngettext(
+      msgid: string,
+      msgid_plural: string,
+      n: number,
+      ...args: any[]
+    ): string;
+    /**
+     * Look up the context and message id in the catalog and return the corresponding
+     * message string. Otherwise, the message id is returned.
+     *
+     * @param msgctxt context
+     * @param msgid message (text to translate)
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    pgettext(msgctxt: string, msgid: string, ...args: any[]): string;
+    /**
+     * Do a plural-forms lookup of a message id. msgid is used as the message id for
+     * purposes of lookup in the catalog, while n is used to determine which plural
+     * form to use. Otherwise, when n is 1 msgid is returned, and msgid_plural is
+     * returned in all other cases.
+     *
+     * @param msgctxt context
+     * @param msgid message for singular
+     * @param msgid_plural message for plural
+     * @param n number used to determine which plural form to use
+     * @param args
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    npgettext(
+      msgctxt: string,
+      msgid: string,
+      msgid_plural: string,
+      n: number,
+      ...args: any[]
+    ): string;
+
+    /**
+     * Do a plural-forms lookup of a message id. msgid is used as the message id for
+     * purposes of lookup in the catalog, while n is used to determine which plural
+     * form to use. Otherwise, when n is 1 msgid is returned, and msgid_plural is
+     * returned in all other cases.
+     *
+     * @param domain - The translations domain.
+     * @param msgctxt - The message context.
+     * @param msgid - The singular string to translate.
+     * @param msgid_plural - The plural string to translate.
+     * @param n - The number for pluralization.
+     * @param args - Any additional values to use with interpolation
+     *
+     * @returns A translated string if found, or the original string.
+     */
+    dcnpgettext(
+      domain: string,
+      msgctxt: string,
+      msgid: string,
+      msgid_plural: string,
+      n: number,
+      ...args: any[]
+    ): string;
+  };
+
+  /**
+   * Translation provider interface
+   */
+  export interface ITranslator {
+    /**
+     * The code of the language in use.
+     */
+    readonly languageCode: string;
+
+    /**
+     * Load translation bundles for a given domain.
+     *
+     * @param domain The translation domain to use for translations.
+     *
+     * @returns The translation bundle if found, or the English bundle.
+     */
+    load(domain: string): TranslationBundle;
+  }
 }
diff --git a/packages/rendermime-interfaces/tsconfig.json b/packages/rendermime-interfaces/tsconfig.json
index 003f40a17b8d..a429907279fd 100644
--- a/packages/rendermime-interfaces/tsconfig.json
+++ b/packages/rendermime-interfaces/tsconfig.json
@@ -5,9 +5,5 @@
     "rootDir": "src"
   },
   "include": ["src/*"],
-  "references": [
-    {
-      "path": "../translation"
-    }
-  ]
+  "references": []
 }
diff --git a/packages/rendermime/.vscode/launch.json b/packages/rendermime/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/rendermime/.vscode/launch.json
+++ b/packages/rendermime/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/rendermime/babel.config.js b/packages/rendermime/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/rendermime/babel.config.js
+++ b/packages/rendermime/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/rendermime/jest.config.js b/packages/rendermime/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/rendermime/jest.config.js
+++ b/packages/rendermime/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/rendermime/package.json b/packages/rendermime/package.json
index 7d5e660d6629..cc931176a1b0 100644
--- a/packages/rendermime/package.json
+++ b/packages/rendermime/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/rendermime",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - RenderMime",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,39 +37,33 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "lodash.escape": "^4.0.1",
-    "marked": "^4.0.17"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "lodash.escape": "^4.0.1"
   },
   "devDependencies": {
-    "@jupyterlab/mathjax2": "^3.6.6",
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
     "@types/lodash.escape": "^4.0.6",
-    "@types/marked": "^4.0.3",
-    "jest": "^26.4.2",
-    "json2html": "^0.0.8",
+    "fs-extra": "^10.1.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/rendermime/src/attachmentmodel.ts b/packages/rendermime/src/attachmentmodel.ts
index 9f2a64c9ace0..3986d4293de2 100644
--- a/packages/rendermime/src/attachmentmodel.ts
+++ b/packages/rendermime/src/attachmentmodel.ts
@@ -173,7 +173,7 @@ export namespace AttachmentModel {
   /**
    * Get the data for an attachment.
    *
-   * @params bundle - A kernel attachment MIME bundle.
+   * @param bundle - A kernel attachment MIME bundle.
    *
    * @returns - The data for the payload.
    */
diff --git a/packages/rendermime/src/factories.ts b/packages/rendermime/src/factories.ts
index af8385903eb6..eaa36808cfaa 100644
--- a/packages/rendermime/src/factories.ts
+++ b/packages/rendermime/src/factories.ts
@@ -88,12 +88,13 @@ export const javaScriptRendererFactory: IRenderMime.IRendererFactory = {
 /**
  * The standard factories provided by the rendermime package.
  */
-export const standardRendererFactories: ReadonlyArray<IRenderMime.IRendererFactory> = [
-  htmlRendererFactory,
-  markdownRendererFactory,
-  latexRendererFactory,
-  svgRendererFactory,
-  imageRendererFactory,
-  javaScriptRendererFactory,
-  textRendererFactory
-];
+export const standardRendererFactories: ReadonlyArray<IRenderMime.IRendererFactory> =
+  [
+    htmlRendererFactory,
+    markdownRendererFactory,
+    latexRendererFactory,
+    svgRendererFactory,
+    imageRendererFactory,
+    javaScriptRendererFactory,
+    textRendererFactory
+  ];
diff --git a/packages/rendermime/src/latex.ts b/packages/rendermime/src/latex.ts
index 285ddd328826..dd2011dcdba5 100644
--- a/packages/rendermime/src/latex.ts
+++ b/packages/rendermime/src/latex.ts
@@ -13,7 +13,8 @@ const inline = '$'; // the inline math delimiter
 
 // MATHSPLIT contains the pattern for math delimiters and special symbols
 // needed for searching for math in the text input.
-const MATHSPLIT = /(\$\$?|\\(?:begin|end)\{[a-z]*\*?\}|\\[{}$]|[{}]|(?:\n\s*)+|@@\d+@@|\\\\(?:\(|\)|\[|\]))/i;
+const MATHSPLIT =
+  /(\$\$?|\\(?:begin|end)\{[a-z]*\*?\}|\\[{}$]|[{}]|(?:\n\s*)+|@@\d+@@|\\\\(?:\(|\)|\[|\]))/i;
 
 /**
  *  Break up the text into its component parts and search
diff --git a/packages/rendermime/src/mimemodel.ts b/packages/rendermime/src/mimemodel.ts
index ac419dfe1ab3..f8a48a545dc4 100644
--- a/packages/rendermime/src/mimemodel.ts
+++ b/packages/rendermime/src/mimemodel.ts
@@ -93,7 +93,7 @@ namespace Private {
   /**
    * A no-op callback function.
    */
-  export function noOp() {
+  export function noOp(): void {
     /* no-op */
   }
 }
diff --git a/packages/rendermime/src/outputmodel.ts b/packages/rendermime/src/outputmodel.ts
index e3551df96617..3650bbc307f0 100644
--- a/packages/rendermime/src/outputmodel.ts
+++ b/packages/rendermime/src/outputmodel.ts
@@ -166,7 +166,7 @@ export class OutputModel implements IOutputModel {
       this._updateObservable(this._metadata, options.metadata!);
       this._rawMetadata = options.metadata;
     }
-    this._changed.emit(void 0);
+    this._changed.emit();
   }
 
   /**
@@ -234,7 +234,7 @@ export namespace OutputModel {
   /**
    * Get the data for an output.
    *
-   * @params output - A kernel output message payload.
+   * @param output - A kernel output message payload.
    *
    * @returns - The data for the payload.
    */
@@ -245,7 +245,7 @@ export namespace OutputModel {
   /**
    * Get the metadata from an output message.
    *
-   * @params output - A kernel output message payload.
+   * @param output - A kernel output message payload.
    *
    * @returns - The metadata for the payload.
    */
diff --git a/packages/rendermime/src/registry.ts b/packages/rendermime/src/registry.ts
index 6acf1d6ebef3..ce5670049004 100644
--- a/packages/rendermime/src/registry.ts
+++ b/packages/rendermime/src/registry.ts
@@ -2,14 +2,10 @@
 | Copyright (c) Jupyter Development Team.
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
-import {
-  defaultSanitizer,
-  ISanitizer,
-  ISessionContext
-} from '@jupyterlab/apputils';
+import { Sanitizer } from '@jupyterlab/apputils';
 import { PathExt, URLExt } from '@jupyterlab/coreutils';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
-import { Contents, Session } from '@jupyterlab/services';
+import { Contents } from '@jupyterlab/services';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
 import { MimeModel } from './mimemodel';
@@ -33,11 +29,12 @@ export class RenderMimeRegistry implements IRenderMimeRegistry {
    */
   constructor(options: RenderMimeRegistry.IOptions = {}) {
     // Parse the options.
-    this.translator = options.translator || nullTranslator;
-    this.resolver = options.resolver || null;
-    this.linkHandler = options.linkHandler || null;
-    this.latexTypesetter = options.latexTypesetter || null;
-    this.sanitizer = options.sanitizer || defaultSanitizer;
+    this.translator = options.translator ?? nullTranslator;
+    this.resolver = options.resolver ?? null;
+    this.linkHandler = options.linkHandler ?? null;
+    this.latexTypesetter = options.latexTypesetter ?? null;
+    this.markdownParser = options.markdownParser ?? null;
+    this.sanitizer = options.sanitizer ?? new Sanitizer();
 
     // Add the initial factories.
     if (options.initialFactories) {
@@ -50,7 +47,7 @@ export class RenderMimeRegistry implements IRenderMimeRegistry {
   /**
    * The sanitizer used by the rendermime instance.
    */
-  readonly sanitizer: ISanitizer;
+  readonly sanitizer: IRenderMime.ISanitizer;
 
   /**
    * The object used to resolve relative urls for the rendermime instance.
@@ -67,6 +64,11 @@ export class RenderMimeRegistry implements IRenderMimeRegistry {
    */
   readonly latexTypesetter: IRenderMime.ILatexTypesetter | null;
 
+  /**
+   * The Markdown parser for the rendermime.
+   */
+  readonly markdownParser: IRenderMime.IMarkdownParser | null;
+
   /**
    * The application language translator.
    */
@@ -140,6 +142,7 @@ export class RenderMimeRegistry implements IRenderMimeRegistry {
       sanitizer: this.sanitizer,
       linkHandler: this.linkHandler,
       latexTypesetter: this.latexTypesetter,
+      markdownParser: this.markdownParser,
       translator: this.translator
     });
   }
@@ -165,11 +168,13 @@ export class RenderMimeRegistry implements IRenderMimeRegistry {
   clone(options: IRenderMimeRegistry.ICloneOptions = {}): RenderMimeRegistry {
     // Create the clone.
     const clone = new RenderMimeRegistry({
-      resolver: options.resolver || this.resolver || undefined,
-      sanitizer: options.sanitizer || this.sanitizer || undefined,
-      linkHandler: options.linkHandler || this.linkHandler || undefined,
+      resolver: options.resolver ?? this.resolver ?? undefined,
+      sanitizer: options.sanitizer ?? this.sanitizer ?? undefined,
+      linkHandler: options.linkHandler ?? this.linkHandler ?? undefined,
       latexTypesetter:
-        options.latexTypesetter || this.latexTypesetter || undefined,
+        options.latexTypesetter ?? this.latexTypesetter ?? undefined,
+      markdownParser:
+        options.markdownParser ?? this.markdownParser ?? undefined,
       translator: this.translator
     });
 
@@ -306,6 +311,11 @@ export namespace RenderMimeRegistry {
      */
     latexTypesetter?: IRenderMime.ILatexTypesetter;
 
+    /**
+     * An optional Markdown parser.
+     */
+    markdownParser?: IRenderMime.IMarkdownParser;
+
     /**
      * The application language translator.
      */
@@ -320,15 +330,7 @@ export namespace RenderMimeRegistry {
      * Create a new url resolver.
      */
     constructor(options: IUrlResolverOptions) {
-      if (options.path) {
-        this._path = options.path;
-      } else if (options.session) {
-        this._session = options.session;
-      } else {
-        throw new Error(
-          "Either 'path' or 'session' must be given as a constructor option"
-        );
-      }
+      this._path = options.path;
       this._contents = options.contents;
     }
 
@@ -336,7 +338,7 @@ export namespace RenderMimeRegistry {
      * The path of the object, from which local urls can be derived.
      */
     get path(): string {
-      return this._path ?? this._session.path;
+      return this._path;
     }
     set path(value: string) {
       this._path = value;
@@ -400,7 +402,6 @@ export namespace RenderMimeRegistry {
     }
 
     private _path: string;
-    private _session: ISessionContext | Session.ISessionConnection;
     private _contents: Contents.IManager;
   }
 
@@ -414,20 +415,7 @@ export namespace RenderMimeRegistry {
      * #### Notes
      * Either session or path must be given, and path takes precedence.
      */
-    path?: string;
-
-    /**
-     * The session used by the resolver.
-     *
-     * @deprecated use the `path` option instead and update it as needed.
-     *
-     * #### Notes
-     * For convenience, this can be a session context as well. Either session
-     * or path must be given, and path takes precedence.
-     *
-     * TODO: remove this option and make `path` required.
-     */
-    session?: ISessionContext | Session.ISessionConnection;
+    path: string;
 
     /**
      * The contents manager used by the resolver.
@@ -468,12 +456,4 @@ namespace Private {
       return p1.id - p2.id;
     });
   }
-
-  export function sessionConnection(
-    s: Session.ISessionConnection | ISessionContext
-  ): Session.ISessionConnection | null {
-    return (s as any).sessionChanged
-      ? (s as ISessionContext).session
-      : (s as Session.ISessionConnection);
-  }
 }
diff --git a/packages/rendermime/src/renderers.ts b/packages/rendermime/src/renderers.ts
index 6dee917d49ae..e418ce5407b6 100644
--- a/packages/rendermime/src/renderers.ts
+++ b/packages/rendermime/src/renderers.ts
@@ -3,20 +3,16 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ISanitizer } from '@jupyterlab/apputils';
-import { CodeMirrorEditor, Mode } from '@jupyterlab/codemirror';
 import { URLExt } from '@jupyterlab/coreutils';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { toArray } from '@lumino/algorithm';
 import escape from 'lodash.escape';
-import { marked } from 'marked';
 import { removeMath, replaceMath } from './latex';
 
 /**
  * Render HTML into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -126,7 +122,7 @@ export namespace renderHTML {
     /**
      * The html sanitizer for untrusted source.
      */
-    sanitizer: ISanitizer;
+    sanitizer: IRenderMime.ISanitizer;
 
     /**
      * An optional url resolver.
@@ -158,7 +154,7 @@ export namespace renderHTML {
 /**
  * Render an image into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -166,15 +162,8 @@ export function renderImage(
   options: renderImage.IRenderOptions
 ): Promise<void> {
   // Unpack the options.
-  const {
-    host,
-    mimeType,
-    source,
-    width,
-    height,
-    needsBackground,
-    unconfined
-  } = options;
+  const { host, mimeType, source, width, height, needsBackground, unconfined } =
+    options;
 
   // Clear the content in the host.
   host.textContent = '';
@@ -258,7 +247,7 @@ export namespace renderImage {
 /**
  * Render LaTeX into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -313,7 +302,7 @@ export namespace renderLatex {
 /**
  * Render Markdown into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -321,7 +310,7 @@ export async function renderMarkdown(
   options: renderMarkdown.IRenderOptions
 ): Promise<void> {
   // Unpack the options.
-  const { host, source, ...others } = options;
+  const { host, source, markdownParser, ...others } = options;
 
   // Clear the content if there is no source.
   if (!source) {
@@ -329,14 +318,20 @@ export async function renderMarkdown(
     return;
   }
 
-  // Separate math from normal markdown text.
-  const parts = removeMath(source);
+  let html = '';
+  if (markdownParser) {
+    // Separate math from normal markdown text.
+    const parts = removeMath(source);
 
-  // Convert the markdown to HTML.
-  let html = await renderMarkdown.renderMarked(parts['text']);
+    // Convert the markdown to HTML.
+    html = await markdownParser.render(parts['text']);
 
-  // Replace math.
-  html = replaceMath(html, parts['math']);
+    // Replace math.
+    html = replaceMath(html, parts['math']);
+  } else {
+    // Fallback if the application does not have any markdown parser.
+    html = `<pre>${source}</pre>`;
+  }
 
   // Render HTML.
   await renderHTML({
@@ -375,7 +370,7 @@ export namespace renderMarkdown {
     /**
      * The html sanitizer for untrusted source.
      */
-    sanitizer: ISanitizer;
+    sanitizer: IRenderMime.ISanitizer;
 
     /**
      * An optional url resolver.
@@ -397,6 +392,11 @@ export namespace renderMarkdown {
      */
     latexTypesetter: IRenderMime.ILatexTypesetter | null;
 
+    /**
+     * The Markdown parser.
+     */
+    markdownParser: IRenderMime.IMarkdownParser | null;
+
     /**
      * The application language translator.
      */
@@ -404,33 +404,20 @@ export namespace renderMarkdown {
   }
 
   /**
-   * Render markdown for the specified content.
-   *
-   * @param content - The string of markdown to render.
-   *
-   * @return A promise which resolves with the rendered content.
+   * Create a normalized id for a header element.
    *
-   * @deprecated This will be remove in 4.0.0 as a new plugin `'@jupyterlab/markedparser-extension:plugin'`
-   * will be exporting `IMarkdownParser` token for customization and reuse by other plugins.
+   * @param header Header element
+   * @returns Normalized id
    */
-  export function renderMarked(content: string): Promise<string> {
-    Private.initializeMarked();
-    return new Promise<string>((resolve, reject) => {
-      marked(content, (err: any, content: string) => {
-        if (err) {
-          reject(err);
-        } else {
-          resolve(content);
-        }
-      });
-    });
+  export function createHeaderId(header: Element): string {
+    return (header.textContent ?? '').replace(/ /g, '-');
   }
 }
 
 /**
  * Render SVG into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -671,7 +658,7 @@ function* alignedNodes<T extends Node, U extends Node>(
 /**
  * Render text into a host node.
  *
- * @params options - The options for rendering.
+ * @param options - The options for rendering.
  *
  * @returns A promise which resolves when rendering is complete.
  */
@@ -693,7 +680,10 @@ export function renderText(options: renderText.IRenderOptions): Promise<void> {
 
   if (preTextContent) {
     // Note: only text nodes and span elements should be present after sanitization in the `<pre>` element.
-    const linkedNodes = autolink(preTextContent);
+    const linkedNodes =
+      sanitizer.getAutolink?.() ?? true
+        ? autolink(preTextContent)
+        : [document.createTextNode(content)];
     let inAnchorElement = false;
 
     const combinedNodes: (HTMLAnchorElement | Text | HTMLSpanElement)[] = [];
@@ -768,7 +758,7 @@ export namespace renderText {
     /**
      * The html sanitizer for untrusted source.
      */
-    sanitizer: ISanitizer;
+    sanitizer: IRenderMime.ISanitizer;
 
     /**
      * The source text to render.
@@ -796,7 +786,7 @@ namespace Private {
    */
   export function evalInnerHTMLScriptTags(host: HTMLElement): void {
     // Create a snapshot of the current script nodes.
-    const scripts = toArray(host.getElementsByTagName('script'));
+    const scripts = Array.from(host.getElementsByTagName('script'));
 
     // Loop over each script node.
     for (const script of scripts) {
@@ -913,7 +903,7 @@ namespace Private {
       const headers = node.getElementsByTagName(headerType);
       for (let i = 0; i < headers.length; i++) {
         const header = headers[i];
-        header.id = (header.textContent ?? '').replace(/ /g, '-');
+        header.id = renderMarkdown.createHeaderId(header);
         const anchor = document.createElement('a');
         anchor.target = '_self';
         anchor.textContent = '¶';
@@ -1009,57 +999,6 @@ namespace Private {
       });
   }
 
-  let markedInitialized = false;
-
-  /**
-   * Support GitHub flavored Markdown, leave sanitizing to external library.
-   */
-  export function initializeMarked(): void {
-    if (markedInitialized) {
-      return;
-    }
-    markedInitialized = true;
-    marked.setOptions({
-      gfm: true,
-      sanitize: false,
-      // breaks: true; We can't use GFM breaks as it causes problems with tables
-      langPrefix: `cm-s-${CodeMirrorEditor.defaultConfig.theme} language-`,
-      highlight: (code, lang, callback) => {
-        const cb = (err: Error | null, code: string) => {
-          if (callback) {
-            callback(err, code);
-          }
-          return code;
-        };
-        if (!lang) {
-          // no language, no highlight
-          return cb(null, code);
-        }
-        Mode.ensure(lang)
-          .then(spec => {
-            const el = document.createElement('div');
-            if (!spec) {
-              console.error(`No CodeMirror mode: ${lang}`);
-              return cb(null, code);
-            }
-            try {
-              Mode.run(code, spec.mime, el);
-              return cb(null, el.innerHTML);
-            } catch (err) {
-              console.error(`Failed to highlight ${lang} code`, err);
-              return cb(err, code);
-            }
-          })
-          .catch(err => {
-            console.error(`No CodeMirror mode: ${lang}`);
-            console.error(`Require CodeMirror mode error: ${err}`);
-            return cb(null, code);
-          });
-        return code;
-      }
-    });
-  }
-
   const ANSI_COLORS = [
     'ansi-black',
     'ansi-red',
diff --git a/packages/rendermime/src/testutils.ts b/packages/rendermime/src/testutils.ts
new file mode 100644
index 000000000000..cce2f38e6acc
--- /dev/null
+++ b/packages/rendermime/src/testutils.ts
@@ -0,0 +1,60 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import type { IOutput } from '@jupyterlab/nbformat';
+import { standardRendererFactories } from './factories';
+import { RenderMimeRegistry } from './registry';
+
+/**
+ * The default outputs used for testing.
+ */
+export const DEFAULT_OUTPUTS: IOutput[] = [
+  {
+    name: 'stdout',
+    output_type: 'stream',
+    text: ['hello world\n', '0\n', '1\n', '2\n']
+  },
+  {
+    name: 'stderr',
+    output_type: 'stream',
+    text: ['output to stderr\n']
+  },
+  {
+    name: 'stderr',
+    output_type: 'stream',
+    text: ['output to stderr2\n']
+  },
+  {
+    output_type: 'execute_result',
+    execution_count: 1,
+    data: { 'text/plain': 'foo' },
+    metadata: {}
+  },
+  {
+    output_type: 'display_data',
+    data: { 'text/plain': 'hello, world' },
+    metadata: {}
+  },
+  {
+    output_type: 'error',
+    ename: 'foo',
+    evalue: 'bar',
+    traceback: ['fizz', 'buzz']
+  }
+];
+
+/**
+ * Get a copy of the default rendermime instance.
+ */
+export function defaultRenderMime(): RenderMimeRegistry {
+  return Private.rendermime.clone();
+}
+
+/**
+ * A namespace for private data.
+ */
+namespace Private {
+  export const rendermime = new RenderMimeRegistry({
+    initialFactories: standardRendererFactories
+  });
+}
diff --git a/packages/rendermime/src/tokens.ts b/packages/rendermime/src/tokens.ts
index 0889a9d5a580..def5db89b0b3 100644
--- a/packages/rendermime/src/tokens.ts
+++ b/packages/rendermime/src/tokens.ts
@@ -3,25 +3,24 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ISanitizer } from '@jupyterlab/apputils';
 import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { ITranslator } from '@jupyterlab/translation';
 import { ReadonlyPartialJSONObject, Token } from '@lumino/coreutils';
 import { MimeModel } from './mimemodel';
 
-/* tslint:disable */
 /**
  * The rendermime token.
  */
 export const IRenderMimeRegistry = new Token<IRenderMimeRegistry>(
-  '@jupyterlab/rendermime:IRenderMimeRegistry'
+  '@jupyterlab/rendermime:IRenderMimeRegistry',
+  'A service for the rendermime registry for the application. Use this to create renderers for various mime-types in your extension. Many times it will be easier to create a "mime renderer extension" rather than using this service directly.'
 );
 
 export interface IRenderMimeRegistry {
   /**
    * The sanitizer used by the rendermime instance.
    */
-  readonly sanitizer: ISanitizer;
+  readonly sanitizer: IRenderMime.ISanitizer;
 
   /**
    * The object used to resolve relative urls for the rendermime instance.
@@ -38,6 +37,11 @@ export interface IRenderMimeRegistry {
    */
   readonly latexTypesetter: IRenderMime.ILatexTypesetter | null;
 
+  /**
+   * The Markdown parser for the rendermime.
+   */
+  readonly markdownParser: IRenderMime.IMarkdownParser | null;
+
   /**
    * The ordered list of mimeTypes.
    */
@@ -169,6 +173,11 @@ export namespace IRenderMimeRegistry {
      */
     latexTypesetter?: IRenderMime.ILatexTypesetter;
 
+    /**
+     * The new Markdown parser.
+     */
+    markdownParser?: IRenderMime.IMarkdownParser;
+
     /**
      * The application language translator.
      */
@@ -176,15 +185,22 @@ export namespace IRenderMimeRegistry {
   }
 }
 
-/* tslint:enable */
-
-/* tslint:disable */
 /**
  * The latex typesetter token.
  */
 export const ILatexTypesetter = new Token<IRenderMime.ILatexTypesetter>(
-  '@jupyterlab/rendermime:ILatexTypesetter'
+  '@jupyterlab/rendermime:ILatexTypesetter',
+  'A service for the LaTeX typesetter for the application. Use this if you want to typeset math in your extension.'
 );
 
 export interface ILatexTypesetter extends IRenderMime.ILatexTypesetter {}
-/* tslint:enable */
+
+/**
+ * The markdown parser token.
+ */
+export const IMarkdownParser = new Token<IRenderMime.IMarkdownParser>(
+  '@jupyterlab/rendermime:IMarkdownParser',
+  'A service for rendering markdown syntax as HTML content.'
+);
+
+export interface IMarkdownParser extends IRenderMime.IMarkdownParser {}
diff --git a/packages/rendermime/src/widgets.ts b/packages/rendermime/src/widgets.ts
index 4b8d10bc50b2..d058cdaf1456 100644
--- a/packages/rendermime/src/widgets.ts
+++ b/packages/rendermime/src/widgets.ts
@@ -17,7 +17,8 @@ import * as renderers from './renderers';
  */
 export abstract class RenderedCommon
   extends Widget
-  implements IRenderMime.IRenderer {
+  implements IRenderMime.IRenderer
+{
   /**
    * Construct a new rendered common widget.
    *
@@ -29,8 +30,9 @@ export abstract class RenderedCommon
     this.sanitizer = options.sanitizer;
     this.resolver = options.resolver;
     this.linkHandler = options.linkHandler;
-    this.translator = options.translator || nullTranslator;
+    this.translator = options.translator ?? nullTranslator;
     this.latexTypesetter = options.latexTypesetter;
+    this.markdownParser = options.markdownParser ?? null;
     this.node.dataset['mimeType'] = this.mimeType;
   }
 
@@ -59,6 +61,11 @@ export abstract class RenderedCommon
    */
   readonly latexTypesetter: IRenderMime.ILatexTypesetter | null;
 
+  /**
+   * The markdownParser.
+   */
+  readonly markdownParser: IRenderMime.IMarkdownParser | null;
+
   /**
    * The translator.
    */
@@ -119,7 +126,7 @@ export abstract class RenderedCommon
    *
    * @param fragment - The URI fragment identifier.
    */
-  protected setFragment(fragment: string) {
+  protected setFragment(fragment: string): void {
     /* no-op */
   }
 }
@@ -138,7 +145,7 @@ export abstract class RenderedHTMLCommon extends RenderedCommon {
     this.addClass('jp-RenderedHTMLCommon');
   }
 
-  setFragment(fragment: string) {
+  setFragment(fragment: string): void {
     let el;
     try {
       el = this.node.querySelector(
@@ -308,6 +315,7 @@ export class RenderedMarkdown extends RenderedHTMLCommon {
       linkHandler: this.linkHandler,
       shouldTypeset: this.isAttached,
       latexTypesetter: this.latexTypesetter,
+      markdownParser: this.markdownParser,
       translator: this.translator
     });
   }
diff --git a/packages/rendermime/style/base.css b/packages/rendermime/style/base.css
index 638a998bbd07..d82297cf5206 100644
--- a/packages/rendermime/style/base.css
+++ b/packages/rendermime/style/base.css
@@ -27,18 +27,20 @@
   color: var(--jp-content-font-color1);
   font-size: var(--jp-code-font-size);
   border: none;
-  margin: 0px;
-  padding: 0px;
+  margin: 0;
+  padding: 0;
 }
 
 .jp-RenderedText pre a:link {
   text-decoration: none;
   color: var(--jp-content-link-color);
 }
+
 .jp-RenderedText pre a:hover {
   text-decoration: underline;
   color: var(--jp-content-link-color);
 }
+
 .jp-RenderedText pre a:visited {
   text-decoration: none;
   color: var(--jp-content-link-color);
@@ -48,24 +50,31 @@
 .jp-RenderedText pre .ansi-black-fg {
   color: #3e424d;
 }
+
 .jp-RenderedText pre .ansi-red-fg {
   color: #e75c58;
 }
+
 .jp-RenderedText pre .ansi-green-fg {
   color: #00a250;
 }
+
 .jp-RenderedText pre .ansi-yellow-fg {
   color: #ddb62b;
 }
+
 .jp-RenderedText pre .ansi-blue-fg {
   color: #208ffb;
 }
+
 .jp-RenderedText pre .ansi-magenta-fg {
   color: #d160c4;
 }
+
 .jp-RenderedText pre .ansi-cyan-fg {
   color: #60c6c8;
 }
+
 .jp-RenderedText pre .ansi-white-fg {
   color: #c5c1b4;
 }
@@ -74,30 +83,37 @@
   background-color: #3e424d;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-red-bg {
   background-color: #e75c58;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-green-bg {
   background-color: #00a250;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-yellow-bg {
   background-color: #ddb62b;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-blue-bg {
   background-color: #208ffb;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-magenta-bg {
   background-color: #d160c4;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-cyan-bg {
   background-color: #60c6c8;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-white-bg {
   background-color: #c5c1b4;
   padding: var(--jp-private-code-span-padding) 0;
@@ -106,24 +122,31 @@
 .jp-RenderedText pre .ansi-black-intense-fg {
   color: #282c36;
 }
+
 .jp-RenderedText pre .ansi-red-intense-fg {
   color: #b22b31;
 }
+
 .jp-RenderedText pre .ansi-green-intense-fg {
   color: #007427;
 }
+
 .jp-RenderedText pre .ansi-yellow-intense-fg {
   color: #b27d12;
 }
+
 .jp-RenderedText pre .ansi-blue-intense-fg {
   color: #0065ca;
 }
+
 .jp-RenderedText pre .ansi-magenta-intense-fg {
   color: #a03196;
 }
+
 .jp-RenderedText pre .ansi-cyan-intense-fg {
   color: #258f8f;
 }
+
 .jp-RenderedText pre .ansi-white-intense-fg {
   color: #a1a6b2;
 }
@@ -132,30 +155,37 @@
   background-color: #282c36;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-red-intense-bg {
   background-color: #b22b31;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-green-intense-bg {
   background-color: #007427;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-yellow-intense-bg {
   background-color: #b27d12;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-blue-intense-bg {
   background-color: #0065ca;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-magenta-intense-bg {
   background-color: #a03196;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-cyan-intense-bg {
   background-color: #258f8f;
   padding: var(--jp-private-code-span-padding) 0;
 }
+
 .jp-RenderedText pre .ansi-white-intense-bg {
   background-color: #a1a6b2;
   padding: var(--jp-private-code-span-padding) 0;
@@ -164,6 +194,7 @@
 .jp-RenderedText pre .ansi-default-inverse-fg {
   color: var(--jp-ui-inverse-font-color0);
 }
+
 .jp-RenderedText pre .ansi-default-inverse-bg {
   background-color: var(--jp-inverse-layout-color0);
   padding: var(--jp-private-code-span-padding) 0;
@@ -172,6 +203,7 @@
 .jp-RenderedText pre .ansi-bold {
   font-weight: bold;
 }
+
 .jp-RenderedText pre .ansi-underline {
   text-decoration: underline;
 }
@@ -206,6 +238,7 @@
   font-family: var(--jp-content-font-family);
   font-size: var(--jp-content-font-size1);
   line-height: var(--jp-content-line-height);
+
   /* Give a bit more R padding on Markdown text to keep line lengths reasonable */
   padding-right: 20px;
 }
@@ -296,6 +329,8 @@
 
 /* Lists */
 
+/* stylelint-disable selector-max-type, selector-max-compound-selectors */
+
 .jp-RenderedHTMLCommon ul:not(.list-inline),
 .jp-RenderedHTMLCommon ol:not(.list-inline) {
   padding-left: 2em;
@@ -342,9 +377,11 @@
 .jp-RenderedHTMLCommon ul ol,
 .jp-RenderedHTMLCommon ol ul,
 .jp-RenderedHTMLCommon ol ol {
-  margin-bottom: 0em;
+  margin-bottom: 0;
 }
 
+/* stylelint-enable selector-max-type, selector-max-compound-selectors */
+
 .jp-RenderedHTMLCommon hr {
   color: var(--jp-border-color2);
   background-color: var(--jp-border-color1);
@@ -383,6 +420,7 @@
   font-size: var(--jp-ui-font-size1);
   table-layout: fixed;
   margin-left: auto;
+  margin-bottom: 1em;
   margin-right: auto;
 }
 
@@ -395,7 +433,7 @@
 .jp-RenderedHTMLCommon th,
 .jp-RenderedHTMLCommon tr {
   vertical-align: middle;
-  padding: 0.5em 0.5em;
+  padding: 0.5em;
   line-height: normal;
   white-space: normal;
   max-width: none;
@@ -429,16 +467,9 @@
   background: var(--jp-rendermime-table-row-hover-background);
 }
 
-.jp-RenderedHTMLCommon table {
-  margin-bottom: 1em;
-}
-
 .jp-RenderedHTMLCommon p {
   text-align: left;
-  margin: 0px;
-}
-
-.jp-RenderedHTMLCommon p {
+  margin: 0;
   margin-bottom: 1em;
 }
 
@@ -458,14 +489,10 @@
 [data-jp-theme-light='false'] .jp-RenderedImage img.jp-needs-light-background {
   background-color: var(--jp-inverse-layout-color1);
 }
+
 [data-jp-theme-light='true'] .jp-RenderedImage img.jp-needs-dark-background {
   background-color: var(--jp-inverse-layout-color1);
 }
-/* ...or leave it untouched if they don't */
-[data-jp-theme-light='false'] .jp-RenderedImage img.jp-needs-dark-background {
-}
-[data-jp-theme-light='true'] .jp-RenderedImage img.jp-needs-light-background {
-}
 
 .jp-RenderedHTMLCommon img,
 .jp-RenderedImage img,
@@ -494,9 +521,11 @@
   background-color: var(--jp-info-color3);
   border-color: var(--jp-info-color2);
 }
+
 .jp-RenderedHTMLCommon .alert-info hr {
   border-color: var(--jp-info-color3);
 }
+
 .jp-RenderedHTMLCommon .alert-info > p:last-child,
 .jp-RenderedHTMLCommon .alert-info > ul:last-child {
   margin-bottom: 0;
@@ -507,9 +536,11 @@
   background-color: var(--jp-warn-color3);
   border-color: var(--jp-warn-color2);
 }
+
 .jp-RenderedHTMLCommon .alert-warning hr {
   border-color: var(--jp-warn-color3);
 }
+
 .jp-RenderedHTMLCommon .alert-warning > p:last-child,
 .jp-RenderedHTMLCommon .alert-warning > ul:last-child {
   margin-bottom: 0;
@@ -520,9 +551,11 @@
   background-color: var(--jp-success-color3);
   border-color: var(--jp-success-color2);
 }
+
 .jp-RenderedHTMLCommon .alert-success hr {
   border-color: var(--jp-success-color3);
 }
+
 .jp-RenderedHTMLCommon .alert-success > p:last-child,
 .jp-RenderedHTMLCommon .alert-success > ul:last-child {
   margin-bottom: 0;
@@ -533,9 +566,11 @@
   background-color: var(--jp-error-color3);
   border-color: var(--jp-error-color2);
 }
+
 .jp-RenderedHTMLCommon .alert-danger hr {
   border-color: var(--jp-error-color3);
 }
+
 .jp-RenderedHTMLCommon .alert-danger > p:last-child,
 .jp-RenderedHTMLCommon .alert-danger > ul:last-child {
   margin-bottom: 0;
diff --git a/packages/rendermime/style/index.css b/packages/rendermime/style/index.css
index c74afd1d6617..f675fea73032 100644
--- a/packages/rendermime/style/index.css
+++ b/packages/rendermime/style/index.css
@@ -6,6 +6,4 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-@import url('~@jupyterlab/codemirror/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/rendermime/style/index.js b/packages/rendermime/style/index.js
index 8d6edb98da6c..f1e3bd206cc6 100644
--- a/packages/rendermime/style/index.js
+++ b/packages/rendermime/style/index.js
@@ -6,6 +6,5 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
-import '@jupyterlab/codemirror/style/index.js';
 
 import './base.css';
diff --git a/packages/rendermime/test/factories.spec.ts b/packages/rendermime/test/factories.spec.ts
index 85d64d0b1823..9a34eed42456 100644
--- a/packages/rendermime/test/factories.spec.ts
+++ b/packages/rendermime/test/factories.spec.ts
@@ -1,81 +1,20 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-const sampleData = `# Title first level
-
-## Title second Level
-
-### Title third level
-
-#### Title fourth level
-
-##### Title fifth level
-
-###### Title sixth level
-
-# h1
-
-## h2
-
-### h3
-
-#### h4
-
-##### h6
-
-This is just a sample paragraph
-You can look at different level of nested unordered list ljbakjn arsvlasc asc asc awsc asc ascd ascd ascd asdc asc
-
-- level 1
-  - level 2
-  - level 2
-  - level 2
-    - level 3
-    - level 3
-      - level 4
-        - level 5
-          - level 6
-  - level 2
-- level 1
-- level 1
-- level 1
-  Ordered list
-
-1.  level 1 2. level 1 3. level 1 4. level 1 1. level 1 1. level 1 2. level 1 3. level 1 4. level 1 1. level 1 1. level 1
-2.  level 1
-3.  level 1
-    some Horizontal line
-
----
-
-## and another one
-
-Colons can be used to align columns.
-
-| Tables        |      Are      | Cool |
-| ------------- | :-----------: | ---: |
-| col 3 is      | right-aligned | 1600 |
-| col 2 is      |   centered    |   12 |
-| zebra stripes |   are neat    |    1 |
-
-There must be at least 3 dashes separating each header cell.
-The outer pipes (|) are optional, and you don't need to make the
-raw Markdown line up prettily. You can also use inline Markdown.
-`;
-
 import { Sanitizer } from '@jupyterlab/apputils';
-import { JSONObject, JSONValue } from '@lumino/coreutils';
-import { Widget } from '@lumino/widgets';
 import {
   htmlRendererFactory,
   imageRendererFactory,
+  IMarkdownParser,
   IRenderMime,
   latexRendererFactory,
   markdownRendererFactory,
   MimeModel,
   svgRendererFactory,
   textRendererFactory
-} from '../src';
+} from '@jupyterlab/rendermime';
+import { JSONObject, JSONValue } from '@lumino/coreutils';
+import { Widget } from '@lumino/widgets';
 
 function createModel(
   mimeType: string,
@@ -233,6 +172,32 @@ describe('rendermime/factories', () => {
         );
       });
 
+      it('should not skip autolink', async () => {
+        const source = 'www.example.com';
+        const expected =
+          '<pre><a href="https://www.example.com" rel="noopener" target="_blank">www.example.com</a></pre>';
+        const f = textRendererFactory;
+        const mimeType = 'text/plain';
+        const model = createModel(mimeType, source);
+        sanitizer.setAutolink(true);
+        const w = f.createRenderer({ mimeType, ...defaultOptions });
+        await w.renderModel(model);
+        expect(w.node.innerHTML).toBe(expected);
+      });
+
+      it('should skip autolink', async () => {
+        const source = 'www.example.com';
+        const expected = '<pre>www.example.com</pre>';
+        const f = textRendererFactory;
+        const mimeType = 'text/plain';
+        const model = createModel(mimeType, source);
+        sanitizer.setAutolink(false);
+        const w = f.createRenderer({ mimeType, ...defaultOptions });
+        await w.renderModel(model);
+        expect(w.node.innerHTML).toBe(expected);
+        sanitizer.setAutolink(true);
+      });
+
       it('should autolink multiple URLs', async () => {
         const source = 'www.example.com\nwww.python.org';
         const expected =
@@ -327,13 +292,35 @@ describe('rendermime/factories', () => {
     });
 
     describe('#createRenderer()', () => {
-      it('should set the inner html', async () => {
+      let markdownParser: IMarkdownParser;
+
+      beforeAll(() => {
+        markdownParser = {
+          render: (content: string): Promise<string> => Promise.resolve(content)
+        };
+      });
+
+      it('should set the inner html with no parser', async () => {
         const f = markdownRendererFactory;
         const source = '<p>hello</p>';
         const mimeType = 'text/markdown';
         const model = createModel(mimeType, source);
         const w = f.createRenderer({ mimeType, ...defaultOptions });
         await w.renderModel(model);
+        expect(w.node.innerHTML).toBe(`<pre>${source}</pre>`);
+      });
+
+      it('should set the inner html with md parser', async () => {
+        const f = markdownRendererFactory;
+        const source = '<p>hello</p>';
+        const mimeType = 'text/markdown';
+        const model = createModel(mimeType, source);
+        const w = f.createRenderer({
+          mimeType,
+          ...defaultOptions,
+          markdownParser
+        });
+        await w.renderModel(model);
         expect(w.node.innerHTML).toBe(source);
       });
 
@@ -342,19 +329,30 @@ describe('rendermime/factories', () => {
         const source = '<p>hello</p>';
         const mimeType = 'text/markdown';
         const model = createModel(mimeType, source);
-        const w = f.createRenderer({ mimeType, ...defaultOptions });
+        const w = f.createRenderer({
+          mimeType,
+          ...defaultOptions,
+          markdownParser
+        });
         await w.renderModel(model);
         await w.renderModel(model);
-        expect(w.node.innerHTML).toBe(source);
+        expect(w.node.innerHTML).toBe(`${source}`);
       });
 
       it('should add header anchors', async () => {
         const f = markdownRendererFactory;
         const mimeType = 'text/markdown';
+        const sampleData = '### Title third level';
+
         const model = createModel(mimeType, sampleData);
-        const w = f.createRenderer({ mimeType, ...defaultOptions });
+        const w = f.createRenderer({
+          mimeType,
+          ...defaultOptions,
+          markdownParser: { render: content => '<h3>Title third level</h3>' }
+        });
         await w.renderModel(model);
         Widget.attach(w, document.body);
+
         const node = document.getElementById('Title-third-level')!;
         expect(node.localName).toBe('h3');
         const anchor = node.firstChild!.nextSibling as HTMLAnchorElement;
diff --git a/packages/rendermime/test/latex.spec.ts b/packages/rendermime/test/latex.spec.ts
index dabb349a6254..9b8fe3006cb8 100644
--- a/packages/rendermime/test/latex.spec.ts
+++ b/packages/rendermime/test/latex.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { removeMath, replaceMath } from '../src';
+import { removeMath, replaceMath } from '@jupyterlab/rendermime';
 
 describe('jupyter-ui', () => {
   describe('removeMath()', () => {
diff --git a/packages/rendermime/test/mimemodel.spec.ts b/packages/rendermime/test/mimemodel.spec.ts
index 7f6ed02c02b6..cca3c0e724c2 100644
--- a/packages/rendermime/test/mimemodel.spec.ts
+++ b/packages/rendermime/test/mimemodel.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { MimeModel } from '../src';
+import { MimeModel } from '@jupyterlab/rendermime';
 
 describe('rendermime/mimemodel', () => {
   describe('MimeModel', () => {
diff --git a/packages/rendermime/tsconfig.json b/packages/rendermime/tsconfig.json
index 727ba8443fd0..b97843a15a26 100644
--- a/packages/rendermime/tsconfig.json
+++ b/packages/rendermime/tsconfig.json
@@ -9,9 +9,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../codemirror"
-    },
     {
       "path": "../coreutils"
     },
diff --git a/packages/rendermime/tsconfig.test.json b/packages/rendermime/tsconfig.test.json
index 7847d5bd8f04..fe625ea4226f 100644
--- a/packages/rendermime/tsconfig.test.json
+++ b/packages/rendermime/tsconfig.test.json
@@ -5,9 +5,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../codemirror"
-    },
     {
       "path": "../coreutils"
     },
@@ -30,34 +27,7 @@
       "path": "."
     },
     {
-      "path": "../mathjax2"
-    },
-    {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codemirror"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../rendermime-interfaces"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/running-extension/package.json b/packages/running-extension/package.json
index ff971dd43dce..ee4d779205ad 100644
--- a/packages/running-extension/package.json
+++ b/packages/running-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/running-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Running Sessions Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -26,8 +26,10 @@
     "lib/*.d.ts",
     "lib/*.js.map",
     "lib/*.js",
+    "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,27 +38,30 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/running": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/running": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
   },
   "jupyterlab": {
-    "extension": true
+    "extension": true,
+    "schemaDir": "schema"
   },
   "styleModule": "style/index.js"
 }
diff --git a/packages/running-extension/schema/plugin.json b/packages/running-extension/schema/plugin.json
new file mode 100644
index 000000000000..3ef0e5421ea1
--- /dev/null
+++ b/packages/running-extension/schema/plugin.json
@@ -0,0 +1,64 @@
+{
+  "title": "Sessions",
+  "description": "Sessions Settings",
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "command": "running:show-panel",
+            "rank": 3
+          }
+        ]
+      }
+    ],
+    "context": [
+      {
+        "command": "running:kernel-new-console",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 0
+      },
+      {
+        "command": "running:kernel-new-notebook",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 1
+      },
+      {
+        "type": "separator",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 2
+      },
+      {
+        "type": "submenu",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 3,
+        "submenu": {
+          "id": "jp-contextmenu-connected-sessions",
+          "label": "Connected Sessions…",
+          "items": []
+        }
+      },
+      {
+        "type": "separator",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 4
+      },
+      {
+        "command": "running:kernel-shut-down",
+        "selector": ".jp-RunningSessions-item.jp-mod-kernel",
+        "rank": 5
+      }
+    ]
+  },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "running:show-panel",
+      "keys": ["Accel Shift B"],
+      "selector": "body"
+    }
+  ],
+  "properties": {},
+  "additionalProperties": false,
+  "type": "object"
+}
diff --git a/packages/running-extension/src/index.ts b/packages/running-extension/src/index.ts
index fa4e785803f9..83f09303aec4 100644
--- a/packages/running-extension/src/index.ts
+++ b/packages/running-extension/src/index.ts
@@ -21,12 +21,24 @@ import { runningIcon } from '@jupyterlab/ui-components';
 import { addKernelRunningSessionManager } from './kernels';
 import { addOpenTabsSessionManager } from './opentabs';
 
+/**
+ * The command IDs used by the running plugin.
+ */
+export namespace CommandIDs {
+  export const kernelNewConsole = 'running:kernel-new-console';
+  export const kernelNewNotebook = 'running:kernel-new-notebook';
+  export const kernelOpenSession = 'running:kernel-open-session';
+  export const kernelShutDown = 'running:kernel-shut-down';
+  export const showPanel = 'running:show-panel';
+}
+
 /**
  * The default running sessions extension.
  */
 const plugin: JupyterFrontEndPlugin<IRunningSessionManagers> = {
   activate,
   id: '@jupyterlab/running-extension:plugin',
+  description: 'Provides the running session managers.',
   provides: IRunningSessionManagers,
   requires: [ITranslator],
   optional: [ILayoutRestorer, ILabShell],
@@ -65,10 +77,17 @@ function activate(
   if (labShell) {
     addOpenTabsSessionManager(runningSessionManagers, translator, labShell);
   }
-  addKernelRunningSessionManager(runningSessionManagers, translator, app);
+  void addKernelRunningSessionManager(runningSessionManagers, translator, app);
   // Rank has been chosen somewhat arbitrarily to give priority to the running
   // sessions widget in the sidebar.
-  app.shell.add(running, 'left', { rank: 200 });
+  app.shell.add(running, 'left', { rank: 200, type: 'Sessions and Tabs' });
+
+  app.commands.addCommand(CommandIDs.showPanel, {
+    label: trans.__('Sessions and Tabs'),
+    execute: () => {
+      app.shell.activateById(running.id);
+    }
+  });
 
   return runningSessionManagers;
 }
diff --git a/packages/running-extension/src/kernels.ts b/packages/running-extension/src/kernels.ts
index 85767d2f41dc..02e1cf1e3ddc 100644
--- a/packages/running-extension/src/kernels.ts
+++ b/packages/running-extension/src/kernels.ts
@@ -3,83 +3,267 @@
 
 import { JupyterFrontEnd } from '@jupyterlab/application';
 import { PathExt } from '@jupyterlab/coreutils';
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { IRunningSessionManagers, IRunningSessions } from '@jupyterlab/running';
-import { Session } from '@jupyterlab/services';
+import { Kernel, KernelSpec, Session } from '@jupyterlab/services';
 import { ITranslator } from '@jupyterlab/translation';
-import { consoleIcon, fileIcon, notebookIcon } from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
+import {
+  closeIcon,
+  consoleIcon,
+  IDisposableMenuItem,
+  jupyterIcon,
+  LabIcon,
+  notebookIcon,
+  RankedMenu
+} from '@jupyterlab/ui-components';
+import { CommandRegistry } from '@lumino/commands';
+import { Throttler } from '@lumino/polling';
+import { Signal } from '@lumino/signaling';
+import { CommandIDs } from '.';
+
+const ITEM_CLASS = 'jp-mod-kernel';
 
 /**
  * Add the running kernel manager (notebooks & consoles) to the running panel.
  */
-export function addKernelRunningSessionManager(
+export async function addKernelRunningSessionManager(
   managers: IRunningSessionManagers,
   translator: ITranslator,
   app: JupyterFrontEnd
-) {
+): Promise<void> {
+  const { commands, contextMenu, serviceManager } = app;
+  const { kernels, kernelspecs, sessions } = serviceManager;
+  const { runningChanged, RunningKernel } = Private;
+  const throttler = new Throttler(() => runningChanged.emit(undefined), 100);
   const trans = translator.load('jupyterlab');
-  const manager = app.serviceManager.sessions;
-  const specsManager = app.serviceManager.kernelspecs;
-  function filterSessions(m: Session.IModel) {
-    return !!(
-      (m.name || PathExt.basename(m.path)).indexOf('.') !== -1 || m.name
-    );
-  }
 
+  // Throttle signal emissions from the kernel and session managers.
+  kernels.runningChanged.connect(() => void throttler.invoke());
+  sessions.runningChanged.connect(() => void throttler.invoke());
+
+  // Wait until the relevant services are ready.
+  await Promise.all([kernels.ready, kernelspecs.ready, sessions.ready]);
+
+  // Add the kernels pane to the running sidebar.
   managers.add({
     name: trans.__('Kernels'),
-    running: () => {
-      return toArray(manager.running())
-        .filter(filterSessions)
-        .map(model => new RunningKernel(model));
-    },
-    shutdownAll: () => manager.shutdownAll(),
-    refreshRunning: () => manager.refreshRunning(),
-    runningChanged: manager.runningChanged,
-    shutdownLabel: trans.__('Shut Down'),
+    running: () =>
+      Array.from(kernels.running()).map(
+        kernel =>
+          new RunningKernel({
+            commands,
+            kernel,
+            kernels,
+            sessions,
+            spec: kernelspecs.specs?.kernelspecs[kernel.name],
+            trans
+          })
+      ),
+    shutdownAll: () => kernels.shutdownAll(),
+    refreshRunning: () =>
+      Promise.all([kernels.refreshRunning(), sessions.refreshRunning()]),
+    runningChanged,
+    shutdownLabel: trans.__('Shut Down Kernel'),
     shutdownAllLabel: trans.__('Shut Down All'),
     shutdownAllConfirmationText: trans.__(
       'Are you sure you want to permanently shut down all running kernels?'
     )
   });
 
-  class RunningKernel implements IRunningSessions.IRunningItem {
-    constructor(model: Session.IModel) {
-      this._model = model;
+  // Add running kernels commands to the registry.
+  const test = (node: HTMLElement) => node.classList.contains(ITEM_CLASS);
+  commands.addCommand(CommandIDs.kernelNewConsole, {
+    icon: consoleIcon,
+    label: trans.__('New Console for Kernel'),
+    execute: args => {
+      const node = app.contextMenuHitTest(test);
+      const id = (args.id as string) ?? node?.dataset['context'];
+      if (id) {
+        return commands.execute('console:create', { kernelPreference: { id } });
+      }
     }
-    open() {
-      const { path, type } = this._model;
-      if (type.toLowerCase() === 'console') {
-        void app.commands.execute('console:open', { path });
-      } else {
-        void app.commands.execute('docmanager:open', { path });
+  });
+  commands.addCommand(CommandIDs.kernelNewNotebook, {
+    icon: notebookIcon,
+    label: trans.__('New Notebook for Kernel'),
+    execute: args => {
+      const node = app.contextMenuHitTest(test);
+      const id = (args.id as string) ?? node?.dataset['context'];
+      if (id) {
+        return commands.execute('notebook:create-new', { kernelId: id });
       }
     }
-    shutdown() {
-      return manager.shutdown(this._model.id);
+  });
+  commands.addCommand(CommandIDs.kernelOpenSession, {
+    icon: args =>
+      args.type === 'console'
+        ? consoleIcon
+        : args.type === 'notebook'
+        ? notebookIcon
+        : undefined,
+    isEnabled: ({ path, type }) => !!type || path !== undefined,
+    label: ({ name, path }) =>
+      (name as string) ||
+      PathExt.basename((path as string) || trans.__('Unknown Session')),
+    execute: ({ path, type }) => {
+      if (!type || path === undefined) {
+        return;
+      }
+      const command = type === 'console' ? 'console:open' : 'docmanager:open';
+      return commands.execute(command, { path });
     }
-    icon() {
-      const { name, path, type } = this._model;
-      if ((name || PathExt.basename(path)).indexOf('.ipynb') !== -1) {
-        return notebookIcon;
-      } else if (type.toLowerCase() === 'console') {
-        return consoleIcon;
+  });
+  commands.addCommand(CommandIDs.kernelShutDown, {
+    icon: closeIcon,
+    label: trans.__('Shut Down Kernel'),
+    execute: args => {
+      const node = app.contextMenuHitTest(test);
+      const id = (args.id as string) ?? node?.dataset['context'];
+      if (id) {
+        return kernels.shutdown(id);
       }
-      return fileIcon;
     }
-    label() {
-      return this._model.name || PathExt.basename(this._model.path);
+  });
+
+  const sessionsItems: IDisposableMenuItem[] = [];
+
+  // Populate connected sessions submenu when context menu is opened.
+  contextMenu.opened.connect(async () => {
+    const submenu =
+      (contextMenu.menu.items.find(
+        item =>
+          item.type === 'submenu' &&
+          item.submenu?.id === 'jp-contextmenu-connected-sessions'
+      )?.submenu as RankedMenu) ?? null;
+
+    if (!submenu) {
+      // Bail early if the connected session menu is not found
+      return;
+    }
+
+    // Empty the connected sessions submenu.
+    sessionsItems.forEach(item => item.dispose());
+    sessionsItems.length = 0;
+    submenu.clearItems();
+
+    const node = app.contextMenuHitTest(test);
+    const id = node?.dataset['context'];
+    if (!id) {
+      return;
     }
-    labelTitle() {
-      const { kernel, path } = this._model;
-      let kernelName = kernel?.name;
-      if (kernelName && specsManager.specs) {
-        const spec = specsManager.specs.kernelspecs[kernelName];
-        kernelName = spec ? spec.display_name : 'unknown';
+
+    // Populate the submenu with sessions connected to this kernel.
+    const command = CommandIDs.kernelOpenSession;
+    for (const session of sessions.running()) {
+      if (id === session.kernel?.id) {
+        const { name, path, type } = session;
+        sessionsItems.push(
+          submenu.addItem({ command, args: { name, path, type } })
+        );
       }
-      return trans.__('Path: %1\nKernel: %2', path, kernelName);
     }
+  });
+}
+
+namespace Private {
+  export class RunningKernel implements IRunningSessions.IRunningItem {
+    constructor(options: RunningKernel.IOptions) {
+      this.className = ITEM_CLASS;
+      this.commands = options.commands;
+      this.kernel = options.kernel;
+      this.context = this.kernel.id;
+      this.kernels = options.kernels;
+      this.sessions = options.sessions;
+      this.spec = options.spec || null;
+      this.trans = options.trans;
+    }
+
+    readonly className: string;
+
+    readonly context: string;
 
-    private _model: Session.IModel;
+    readonly commands: CommandRegistry;
+
+    readonly kernel: Kernel.IModel;
+
+    readonly kernels: Kernel.IManager;
+
+    readonly sessions: Session.IManager;
+
+    readonly spec: KernelSpec.ISpecModel | null;
+
+    readonly trans: IRenderMime.TranslationBundle;
+
+    get children(): IRunningSessions.IRunningItem[] {
+      const children: IRunningSessions.IRunningItem[] = [];
+      const open = CommandIDs.kernelOpenSession;
+      const { commands } = this;
+      for (const session of this.sessions.running()) {
+        if (this.kernel.id === session.kernel?.id) {
+          const { name, path, type } = session;
+          children.push({
+            className: ITEM_CLASS,
+            context: this.kernel.id,
+            open: () => void commands.execute(open, { name, path, type }),
+            icon: () =>
+              type === 'console'
+                ? consoleIcon
+                : type === 'notebook'
+                ? notebookIcon
+                : jupyterIcon,
+            label: () => name,
+            labelTitle: () => path
+          });
+        }
+      }
+      return children;
+    }
+
+    shutdown(): Promise<void> {
+      return this.kernels.shutdown(this.kernel.id);
+    }
+
+    icon(): LabIcon | string {
+      const { spec } = this;
+      if (!spec || !spec.resources) {
+        return jupyterIcon;
+      }
+      return (
+        spec.resources['logo-svg'] ||
+        spec.resources['logo-64x64'] ||
+        spec.resources['logo-32x32']
+      );
+    }
+
+    label(): string {
+      const { kernel, spec } = this;
+      return spec?.display_name || kernel.name;
+    }
+
+    labelTitle(): string {
+      const { trans } = this;
+      const { id } = this.kernel;
+      const title = [`${this.label()}: ${id}`];
+      for (const session of this.sessions.running()) {
+        if (this.kernel.id === session.kernel?.id) {
+          const { path, type } = session;
+          title.push(trans.__(`%1\nPath: %2`, type, path));
+        }
+      }
+      return title.join('\n\n');
+    }
   }
+
+  export namespace RunningKernel {
+    export interface IOptions {
+      commands: CommandRegistry;
+      kernel: Kernel.IModel;
+      kernels: Kernel.IManager;
+      sessions: Session.IManager;
+      spec?: KernelSpec.ISpecModel;
+      trans: IRenderMime.TranslationBundle;
+    }
+  }
+
+  export const runningChanged = new Signal<unknown, unknown>({});
 }
diff --git a/packages/running-extension/src/opentabs.ts b/packages/running-extension/src/opentabs.ts
index a8600f883525..53751356c222 100644
--- a/packages/running-extension/src/opentabs.ts
+++ b/packages/running-extension/src/opentabs.ts
@@ -6,7 +6,6 @@ import { DocumentWidget } from '@jupyterlab/docregistry';
 import { IRunningSessionManagers, IRunningSessions } from '@jupyterlab/running';
 import { ITranslator } from '@jupyterlab/translation';
 import { fileIcon, LabIcon } from '@jupyterlab/ui-components';
-import { toArray } from '@lumino/algorithm';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 
@@ -63,22 +62,22 @@ export function addOpenTabsSessionManager(
   managers: IRunningSessionManagers,
   translator: ITranslator,
   labShell: ILabShell
-) {
+): void {
   const signaler = new OpenTabsSignaler(labShell);
   const trans = translator.load('jupyterlab');
 
   managers.add({
     name: trans.__('Open Tabs'),
     running: () => {
-      return toArray(labShell.widgets('main')).map((widget: Widget) => {
+      return Array.from(labShell.widgets('main')).map((widget: Widget) => {
         signaler.addWidget(widget);
         return new OpenTab(widget);
       });
     },
     shutdownAll: () => {
-      toArray(labShell.widgets('main')).forEach((widget: Widget) => {
+      for (const widget of labShell.widgets('main')) {
         widget.close();
-      });
+      }
     },
     refreshRunning: () => {
       return void 0;
diff --git a/packages/running-extension/tsconfig.json b/packages/running-extension/tsconfig.json
index 4123bcd91c20..7614656e8975 100644
--- a/packages/running-extension/tsconfig.json
+++ b/packages/running-extension/tsconfig.json
@@ -15,6 +15,9 @@
     {
       "path": "../docregistry"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../running"
     },
diff --git a/packages/running/package.json b/packages/running/package.json
index 8a21ff86de64..bc0ebca53f03 100644
--- a/packages/running/package.json
+++ b/packages/running/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/running",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Running Sessions Panel",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,18 +37,20 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "react": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/running/src/index.tsx b/packages/running/src/index.tsx
index 59e13a5db074..9a5c081299cf 100644
--- a/packages/running/src/index.tsx
+++ b/packages/running/src/index.tsx
@@ -5,18 +5,26 @@
  * @module running
  */
 
+import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import {
-  Dialog,
+  caretDownIcon,
+  caretRightIcon,
+  closeIcon,
+  LabIcon,
+  PanelWithToolbar,
   ReactWidget,
-  showDialog,
+  refreshIcon,
+  SidePanel,
+  ToolbarButton,
   ToolbarButtonComponent,
   UseSignal
-} from '@jupyterlab/apputils';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { closeIcon, LabIcon, refreshIcon } from '@jupyterlab/ui-components';
+} from '@jupyterlab/ui-components';
 import { Token } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
-import { ISignal } from '@lumino/signaling';
+import { Message } from '@lumino/messaging';
+import { ISignal, Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
 import * as React from 'react';
 
 /**
@@ -24,21 +32,11 @@ import * as React from 'react';
  */
 const RUNNING_CLASS = 'jp-RunningSessions';
 
-/**
- * The class name added to a running widget header.
- */
-const HEADER_CLASS = 'jp-RunningSessions-header';
-
 /**
  * The class name added to the running terminal sessions section.
  */
 const SECTION_CLASS = 'jp-RunningSessions-section';
 
-/**
- * The class name added to the running sessions section header.
- */
-const SECTION_HEADER_CLASS = 'jp-RunningSessions-sectionHeader';
-
 /**
  * The class name added to a section container.
  */
@@ -74,14 +72,13 @@ const SHUTDOWN_BUTTON_CLASS = 'jp-RunningSessions-itemShutdown';
  */
 const SHUTDOWN_ALL_BUTTON_CLASS = 'jp-RunningSessions-shutdownAll';
 
-/* tslint:disable */
 /**
  * The running sessions token.
  */
 export const IRunningSessionManagers = new Token<IRunningSessionManagers>(
-  '@jupyterlab/running:IRunningSessionManagers'
+  '@jupyterlab/running:IRunningSessionManagers',
+  'A service to add running session managers.'
 );
-/* tslint:enable */
 
 /**
  * The running interface.
@@ -94,6 +91,12 @@ export interface IRunningSessionManagers {
    *
    */
   add(manager: IRunningSessions.IManager): IDisposable;
+
+  /**
+   * Signal emitted when a new manager is added.
+   */
+  added: ISignal<IRunningSessionManagers, IRunningSessions.IManager>;
+
   /**
    * Return an array of managers.
    */
@@ -101,6 +104,13 @@ export interface IRunningSessionManagers {
 }
 
 export class RunningSessionManagers implements IRunningSessionManagers {
+  /**
+   * Signal emitted when a new manager is added.
+   */
+  get added(): ISignal<this, IRunningSessions.IManager> {
+    return this._added;
+  }
+
   /**
    * Add a running item manager.
    *
@@ -109,6 +119,7 @@ export class RunningSessionManagers implements IRunningSessionManagers {
    */
   add(manager: IRunningSessions.IManager): IDisposable {
     this._managers.push(manager);
+    this._added.emit(manager);
     return new DisposableDelegate(() => {
       const i = this._managers.indexOf(manager);
 
@@ -125,45 +136,101 @@ export class RunningSessionManagers implements IRunningSessionManagers {
     return this._managers;
   }
 
+  private _added = new Signal<this, IRunningSessions.IManager>(this);
   private _managers: IRunningSessions.IManager[] = [];
 }
 
 function Item(props: {
+  child?: boolean;
   runningItem: IRunningSessions.IRunningItem;
   shutdownLabel?: string;
   shutdownItemIcon?: LabIcon;
   translator?: ITranslator;
 }) {
   const { runningItem } = props;
-  const icon = runningItem.icon();
+  const classList = [ITEM_CLASS];
   const detail = runningItem.detail?.();
+  const icon = runningItem.icon();
+  const title = runningItem.labelTitle ? runningItem.labelTitle() : '';
   const translator = props.translator || nullTranslator;
   const trans = translator.load('jupyterlab');
-  const shutdownLabel = props.shutdownLabel || trans.__('Shut Down');
+
+  // Handle shutdown requests.
+  let stopPropagation = false;
   const shutdownItemIcon = props.shutdownItemIcon || closeIcon;
+  const shutdownLabel = props.shutdownLabel || trans.__('Shut Down');
+  const shutdown = () => {
+    stopPropagation = true;
+    runningItem.shutdown?.();
+  };
+
+  // Manage collapsed state. Use the shutdown flag in lieu of `stopPropagation`.
+  const [collapsed, collapse] = React.useState(false);
+  const collapsible = !!runningItem.children?.length;
+  const onClick = collapsible
+    ? () => !stopPropagation && collapse(!collapsed)
+    : undefined;
+
+  if (runningItem.className) {
+    classList.push(runningItem.className);
+  }
+  if (props.child) {
+    classList.push('jp-mod-running-child');
+  }
 
   return (
-    <li className={ITEM_CLASS}>
-      <icon.react tag="span" stylesheet="runningItem" />
-      <span
-        className={ITEM_LABEL_CLASS}
-        title={runningItem.labelTitle ? runningItem.labelTitle() : ''}
-        onClick={() => runningItem.open()}
-      >
-        {runningItem.label()}
-      </span>
-      {detail && <span className={ITEM_DETAIL_CLASS}>{detail}</span>}
-      <ToolbarButtonComponent
-        className={SHUTDOWN_BUTTON_CLASS}
-        icon={shutdownItemIcon}
-        onClick={() => runningItem.shutdown()}
-        tooltip={shutdownLabel}
-      />
-    </li>
+    <>
+      <li>
+        <div
+          className={classList.join(' ')}
+          onClick={onClick}
+          data-context={runningItem.context || ''}
+        >
+          {collapsible &&
+            (collapsed ? (
+              <caretRightIcon.react tag="span" stylesheet="runningItem" />
+            ) : (
+              <caretDownIcon.react tag="span" stylesheet="runningItem" />
+            ))}
+          {typeof icon === 'string' ? (
+            icon ? (
+              <img src={icon} />
+            ) : undefined
+          ) : (
+            <icon.react tag="span" stylesheet="runningItem" />
+          )}
+          <span
+            className={ITEM_LABEL_CLASS}
+            title={title}
+            onClick={runningItem.open && (() => runningItem.open!())}
+          >
+            {runningItem.label()}
+          </span>
+          {detail && <span className={ITEM_DETAIL_CLASS}>{detail}</span>}
+          {runningItem.shutdown && (
+            <ToolbarButtonComponent
+              className={SHUTDOWN_BUTTON_CLASS}
+              icon={shutdownItemIcon}
+              onClick={shutdown}
+              tooltip={shutdownLabel}
+            />
+          )}
+        </div>
+        {collapsible && !collapsed && (
+          <List
+            child={true}
+            runningItems={runningItem.children!}
+            shutdownItemIcon={shutdownItemIcon}
+            translator={translator}
+          />
+        )}
+      </li>
+    </>
   );
 }
 
-function ListView(props: {
+function List(props: {
+  child?: boolean;
   runningItems: IRunningSessions.IRunningItem[];
   shutdownLabel?: string;
   shutdownAllLabel?: string;
@@ -174,6 +241,7 @@ function ListView(props: {
     <ul className={LIST_CLASS}>
       {props.runningItems.map((item, i) => (
         <Item
+          child={props.child}
           key={i}
           runningItem={item}
           shutdownLabel={props.shutdownLabel}
@@ -185,25 +253,89 @@ function ListView(props: {
   );
 }
 
-function List(props: {
-  manager: IRunningSessions.IManager;
-  shutdownLabel?: string;
-  shutdownAllLabel?: string;
-  translator?: ITranslator;
-}) {
-  return (
-    <UseSignal signal={props.manager.runningChanged}>
-      {() => (
-        <ListView
-          runningItems={props.manager.running()}
-          shutdownLabel={props.shutdownLabel}
-          shutdownAllLabel={props.shutdownAllLabel}
-          shutdownItemIcon={props.manager.shutdownItemIcon}
-          translator={props.translator}
-        />
-      )}
-    </UseSignal>
-  );
+class ListWidget extends ReactWidget {
+  constructor(
+    private _options: {
+      manager: IRunningSessions.IManager;
+      runningItems: IRunningSessions.IRunningItem[];
+      shutdownAllLabel: string;
+      translator?: ITranslator;
+    }
+  ) {
+    super();
+    _options.manager.runningChanged.connect(this._emitUpdate, this);
+  }
+
+  dispose() {
+    this._options.manager.runningChanged.disconnect(this._emitUpdate, this);
+    super.dispose();
+  }
+
+  protected onBeforeShow(msg: Message): void {
+    super.onBeforeShow(msg);
+    this._update.emit();
+  }
+
+  render(): JSX.Element {
+    const options = this._options;
+    let cached = true;
+    return (
+      <UseSignal signal={this._update}>
+        {() => {
+          // Cache the running items for the intial load and request from
+          // the service every subsequent load.
+          if (cached) {
+            cached = false;
+          } else {
+            options.runningItems = options.manager.running();
+          }
+          return (
+            <div className={CONTAINER_CLASS}>
+              <List
+                runningItems={options.runningItems}
+                shutdownLabel={options.manager.shutdownLabel}
+                shutdownAllLabel={options.shutdownAllLabel}
+                shutdownItemIcon={options.manager.shutdownItemIcon}
+                translator={options.translator}
+              />
+            </div>
+          );
+        }}
+      </UseSignal>
+    );
+  }
+
+  /**
+   * Check if the widget or any of it's parents is hidden.
+   *
+   * Checking parents is necessary as lumino does not propagate visibility
+   * changes from parents down to children (although it does notify parents
+   * about changes to children visibility).
+   */
+  private _isAnyHidden() {
+    let isHidden = this.isHidden;
+    if (isHidden) {
+      return isHidden;
+    }
+    let parent: Widget | null = this.parent;
+    while (parent != null) {
+      if (parent.isHidden) {
+        isHidden = true;
+        break;
+      }
+      parent = parent.parent;
+    }
+    return isHidden;
+  }
+
+  private _emitUpdate() {
+    if (this._isAnyHidden()) {
+      return;
+    }
+    this._update.emit();
+  }
+
+  private _update: Signal<ListWidget, void> = new Signal(this);
 }
 
 /**
@@ -212,123 +344,136 @@ function List(props: {
  *
  * It is specialized for each based on its props.
  */
-function Section(props: {
-  manager: IRunningSessions.IManager;
-  translator?: ITranslator;
-}) {
-  const translator = props.translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  const shutdownAllLabel =
-    props.manager.shutdownAllLabel || trans.__('Shut Down All');
-  const shutdownTitle = `${shutdownAllLabel}?`;
-  const shutdownAllConfirmationText =
-    props.manager.shutdownAllConfirmationText ||
-    `${shutdownAllLabel} ${props.manager.name}`;
-  function onShutdown() {
-    void showDialog({
-      title: shutdownTitle,
-      body: shutdownAllConfirmationText,
-      buttons: [
-        Dialog.cancelButton({ label: trans.__('Cancel') }),
-        Dialog.warnButton({ label: shutdownAllLabel })
-      ]
-    }).then(result => {
-      if (result.button.accept) {
-        props.manager.shutdownAll();
-      }
+class Section extends PanelWithToolbar {
+  constructor(options: {
+    manager: IRunningSessions.IManager;
+    translator?: ITranslator;
+  }) {
+    super();
+    this._manager = options.manager;
+    const translator = options.translator || nullTranslator;
+    const trans = translator.load('jupyterlab');
+    const shutdownAllLabel =
+      options.manager.shutdownAllLabel || trans.__('Shut Down All');
+    const shutdownTitle = `${shutdownAllLabel}?`;
+    const shutdownAllConfirmationText =
+      options.manager.shutdownAllConfirmationText ||
+      `${shutdownAllLabel} ${options.manager.name}`;
+
+    this.addClass(SECTION_CLASS);
+    this.title.label = options.manager.name;
+
+    function onShutdown() {
+      void showDialog({
+        title: shutdownTitle,
+        body: shutdownAllConfirmationText,
+        buttons: [
+          Dialog.cancelButton(),
+          Dialog.warnButton({ label: shutdownAllLabel })
+        ]
+      }).then(result => {
+        if (result.button.accept) {
+          options.manager.shutdownAll();
+        }
+      });
+    }
+
+    let runningItems = options.manager.running();
+    const enabled = runningItems.length > 0;
+    this._button = new ToolbarButton({
+      label: shutdownAllLabel,
+      className: `${SHUTDOWN_ALL_BUTTON_CLASS} jp-mod-styled ${
+        !enabled && 'jp-mod-disabled'
+      }`,
+      enabled,
+      onClick: onShutdown
     });
+    this._manager.runningChanged.connect(this._updateButton, this);
+
+    this.toolbar.addItem('shutdown-all', this._button);
+
+    this.addWidget(
+      new ListWidget({ runningItems, shutdownAllLabel, ...options })
+    );
   }
 
-  return (
-    <div className={SECTION_CLASS}>
-      <>
-        <div className={`${SECTION_HEADER_CLASS} jp-stack-panel-header`}>
-          <h2>{props.manager.name}</h2>
-          <UseSignal signal={props.manager.runningChanged}>
-            {() => {
-              const disabled = props.manager.running().length === 0;
-              return (
-                <button
-                  className={`${SHUTDOWN_ALL_BUTTON_CLASS} jp-mod-styled ${
-                    disabled && 'jp-mod-disabled'
-                  }`}
-                  disabled={disabled}
-                  onClick={onShutdown}
-                >
-                  {shutdownAllLabel}
-                </button>
-              );
-            }}
-          </UseSignal>
-        </div>
+  /**
+   * Dispose the resources held by the widget
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this._manager.runningChanged.disconnect(this._updateButton, this);
+    super.dispose();
+  }
 
-        <div className={CONTAINER_CLASS}>
-          <List
-            manager={props.manager}
-            shutdownLabel={props.manager.shutdownLabel}
-            shutdownAllLabel={shutdownAllLabel}
-            translator={props.translator}
-          />
-        </div>
-      </>
-    </div>
-  );
-}
+  private _updateButton(): void {
+    const button = this._button;
+    button.enabled = this._manager.running().length > 0;
+    if (button.enabled) {
+      button.node.querySelector('button')?.classList.remove('jp-mod-disabled');
+    } else {
+      button.node.querySelector('button')?.classList.add('jp-mod-disabled');
+    }
+  }
 
-function RunningSessionsComponent(props: {
-  managers: IRunningSessionManagers;
-  translator?: ITranslator;
-}) {
-  const translator = props.translator || nullTranslator;
-  const trans = translator.load('jupyterlab');
-  return (
-    <>
-      <div className={HEADER_CLASS}>
-        <ToolbarButtonComponent
-          tooltip={trans.__('Refresh List')}
-          icon={refreshIcon}
-          onClick={() =>
-            props.managers.items().forEach(manager => manager.refreshRunning())
-          }
-        />
-      </div>
-      {props.managers.items().map(manager => (
-        <Section
-          key={manager.name}
-          manager={manager}
-          translator={props.translator}
-        />
-      ))}
-    </>
-  );
+  private _button: ToolbarButton;
+  private _manager: IRunningSessions.IManager;
 }
 
 /**
  * A class that exposes the running terminal and kernel sessions.
  */
-export class RunningSessions extends ReactWidget {
+export class RunningSessions extends SidePanel {
   /**
    * Construct a new running widget.
    */
   constructor(managers: IRunningSessionManagers, translator?: ITranslator) {
     super();
     this.managers = managers;
-    this.translator = translator || nullTranslator;
+    this.translator = translator ?? nullTranslator;
+    const trans = this.translator.load('jupyterlab');
 
-    // this can't be in the react element, because then it would be too nested
     this.addClass(RUNNING_CLASS);
-  }
 
-  protected render() {
-    return (
-      <RunningSessionsComponent
-        managers={this.managers}
-        translator={this.translator}
-      />
+    this.toolbar.addItem(
+      'refresh',
+      new ToolbarButton({
+        tooltip: trans.__('Refresh List'),
+        icon: refreshIcon,
+        onClick: () =>
+          managers.items().forEach(manager => manager.refreshRunning())
+      })
     );
+
+    managers.items().forEach(manager => this.addSection(managers, manager));
+
+    managers.added.connect(this.addSection, this);
+  }
+
+  /**
+   * Dispose the resources held by the widget
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this.managers.added.disconnect(this.addSection, this);
+    super.dispose();
+  }
+
+  /**
+   * Add a section for a new manager.
+   *
+   * @param managers Managers
+   * @param manager New manager
+   */
+  protected addSection(_: unknown, manager: IRunningSessions.IManager) {
+    this.addWidget(new Section({ manager, translator: this.translator }));
   }
 
-  private managers: IRunningSessionManagers;
+  protected managers: IRunningSessionManagers;
   protected translator: ITranslator;
 }
 
@@ -340,23 +485,49 @@ export namespace IRunningSessions {
    * A manager of running items grouped under a single section.
    */
   export interface IManager {
-    // Name that is shown to the user in plural
+    /**
+     * Name that is shown to the user in plural.
+     */
     name: string;
-    // called when the shutdown all button is pressed
+
+    /**
+     * Called when the shutdown all button is pressed.
+     */
     shutdownAll(): void;
-    // list the running models.
+
+    /**
+     * List the running models.
+     */
     running(): IRunningItem[];
-    // Force a refresh of the running models.
+
+    /**
+     * Force a refresh of the running models.
+     */
     refreshRunning(): void;
-    // A signal that should be emitted when the item list has changed.
+
+    /**
+     * A signal that should be emitted when the item list has changed.
+     */
     runningChanged: ISignal<any, any>;
-    // A string used to describe the shutdown action.
+
+    /**
+     * A string used to describe the shutdown action.
+     */
     shutdownLabel?: string;
-    // A string used to describe the shutdown all action.
+
+    /**
+     * A string used to describe the shutdown all action.
+     */
     shutdownAllLabel?: string;
-    // A string used as the body text in the shutdown all confirmation dialog.
+
+    /**
+     * A string used as the body text in the shutdown all confirmation dialog.
+     */
     shutdownAllConfirmationText?: string;
-    // The icon to show for shutting down an individual item in this section.
+
+    /**
+     * The icon to show for shutting down an individual item in this section.
+     */
     shutdownItemIcon?: LabIcon;
   }
 
@@ -364,18 +535,52 @@ export namespace IRunningSessions {
    * A running item.
    */
   export interface IRunningItem {
-    // called when the running item is clicked
-    open: () => void;
-    // called when the shutdown button is pressed on a particular item
-    shutdown: () => void;
-    // LabIcon to use as the icon
-    icon: () => LabIcon;
-    // called to determine the label for each item
+    /**
+     * Optional child nodes that belong to a top-level running item.
+     */
+    children?: IRunningItem[];
+
+    /**
+     * Optional CSS class name to add to the running item.
+     */
+    className?: string;
+
+    /**
+     * Optional context hint to add to the `data-context` attribute of an item.
+     */
+    context?: string;
+
+    /**
+     * Called when the running item is clicked.
+     */
+    open?: () => void;
+
+    /**
+     * Called when the shutdown button is pressed on a particular item.
+     */
+    shutdown?: () => void;
+
+    /**
+     * The `LabIcon` to use as the icon for the running item or the string
+     * `src` URL.
+     */
+    icon: () => LabIcon | string;
+
+    /**
+     * Called to determine the label for each item.
+     */
     label: () => string;
-    // called to determine the `title` attribute for each item, which is revealed on hover
+
+    /**
+     * Called to determine the `title` attribute for each item, which is
+     * revealed on hover.
+     */
     labelTitle?: () => string;
-    // called to determine the `detail` attribute which is shown optionally
-    // in a column after the label
+
+    /**
+     * Called to determine the `detail` attribute, which is shown optionally in
+     * a column after the label.
+     */
     detail?: () => string;
   }
 }
diff --git a/packages/running/style/base.css b/packages/running/style/base.css
index f2c855a0f1ec..89e31d587fa5 100644
--- a/packages/running/style/base.css
+++ b/packages/running/style/base.css
@@ -1,12 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /*-----------------------------------------------------------------------------
 | Variables
 |----------------------------------------------------------------------------*/
 
 :root {
-  --jp-private-running-button-height: 28px;
-  --jp-private-running-button-width: 48px;
   --jp-private-running-item-height: 24px;
-  --jp-private-running-shutdown-button-height: 24px;
 }
 
 /*-----------------------------------------------------------------------------
@@ -20,57 +22,29 @@
   min-width: var(--jp-sidebar-min-width);
   color: var(--jp-ui-font-color1);
   background: var(--jp-layout-color1);
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
 }
 
-.jp-RunningSessions-header {
-  flex: 0 0 auto;
-  display: flex;
-  flex-direction: row;
+.jp-RunningSessions > .jp-SidePanel-toolbar {
   justify-content: flex-end;
 }
 
 .jp-RunningSessions-section {
-  display: flex;
-  flex: 0 1 auto;
-  flex-direction: column;
+  min-height: 50px;
   overflow: auto;
 }
 
-.jp-RunningSessions-sectionHeader {
-  flex: 0 0 auto;
-  align-items: center;
-  justify-content: space-between;
-  height: 28px;
-  display: flex;
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
-  margin-top: 8px;
-}
-
-.jp-RunningSessions-sectionHeader h2 {
-  flex: 0 0 auto;
-  font-weight: 600;
-  text-transform: uppercase;
-  letter-spacing: 1px;
-  font-size: var(--jp-ui-font-size0);
-  padding: 8px 8px 8px 12px;
-  margin: 0px;
-}
-
-.jp-RunningSessions-sectionHeader .jp-ToolbarButtonComponent {
-  flex: 0 0 auto;
-}
-
 .jp-RunningSessions-sectionContainer {
-  flex: 1 1 auto;
   margin: 0;
   padding: 0;
   overflow: auto;
 }
 
 .jp-RunningSessions-sectionList {
+  display: block;
   margin: 0;
   padding: 0;
   list-style-type: none;
@@ -82,17 +56,31 @@
   color: var(--jp-ui-font-color1);
   height: var(--jp-private-running-item-height);
   line-height: var(--jp-private-running-item-height);
-  padding: 0 8px 0 8px;
+  padding: 0 8px;
 }
 
 .jp-RunningSessions-item:hover {
   background-color: var(--jp-layout-color2);
+  cursor: pointer;
+}
+
+.jp-RunningSessions-item.jp-mod-running-child {
+  padding-left: 40px;
+}
+
+.jp-RunningSessions-item.jp-mod-kernel:not(.jp-mod-running-child) {
+  user-select: none;
+}
+
+.jp-RunningSessions-item img {
+  height: 16px;
+  margin-top: 4px;
 }
 
 .jp-RunningSessions-itemLabel {
   font-size: var(--jp-ui-font-size1);
   flex: 1 1 55%;
-  padding: 0 4px 0 4px;
+  padding: 0 4px;
   text-overflow: ellipsis;
   overflow: hidden;
   white-space: nowrap;
@@ -105,19 +93,18 @@
 .jp-RunningSessions-itemDetail {
   font-size: var(--jp-ui-font-size1);
   flex: 1 1 45%;
-  padding: 0 4px 0 4px;
+  padding: 0 4px;
   text-overflow: ellipsis;
   overflow: hidden;
   white-space: nowrap;
 }
 
 .jp-RunningSessions-item .jp-RunningSessions-itemShutdown {
-  border-radius: 0px;
+  border-radius: 0;
 }
 
 .jp-RunningSessions-item:not(:hover) .jp-RunningSessions-itemShutdown {
   visibility: hidden;
-  /* display: none; */
 }
 
 .jp-RunningSessions-sectionList
@@ -126,32 +113,34 @@
   background: var(--jp-layout-color3);
 }
 
-.jp-RunningSessions-shutdownAll.jp-mod-styled {
-  margin: 0px 8px;
+.jp-RunningSessions-shutdownAll.jp-mod-styled
+  > .jp-ToolbarButtonComponent-label {
   color: var(--jp-warn-color1);
   background-color: transparent;
-  height: var(--jp-private-running-shutdown-button-height);
-  line-height: var(--jp-private-running-shutdown-button-height);
   border-radius: 2px;
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
 }
 
-.jp-RunningSessions-shutdownAll.jp-mod-styled:hover {
+.jp-RunningSessions-shutdownAll.jp-mod-styled:hover
+  > .jp-ToolbarButtonComponent-label {
   background-color: var(--jp-layout-color2);
 }
 
-.jp-RunningSessions-shutdownAll.jp-mod-styled:focus {
+.jp-RunningSessions-shutdownAll.jp-mod-styled:focus
+  > .jp-ToolbarButtonComponent-label {
   border: none;
   box-shadow: none;
   background-color: var(--jp-layout-color2);
 }
 
-.jp-RunningSessions-shutdownAll.jp-mod-styled.jp-mod-disabled {
+.jp-RunningSessions-shutdownAll.jp-mod-styled.jp-mod-disabled
+  > .jp-ToolbarButtonComponent-label {
   color: var(--jp-ui-font-color2);
 }
 
-.jp-RunningSessions-shutdownAll.jp-mod-styled.jp-mod-disabled:hover {
+.jp-RunningSessions-shutdownAll.jp-mod-styled.jp-mod-disabled:hover
+  > .jp-ToolbarButtonComponent-label {
   background: none;
 }
diff --git a/packages/running/style/index.css b/packages/running/style/index.css
index b47e96170e7c..38237a5e1956 100644
--- a/packages/running/style/index.css
+++ b/packages/running/style/index.css
@@ -4,7 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+@import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/running/style/index.js b/packages/running/style/index.js
index 86fb14c22fed..714d25e16c3d 100644
--- a/packages/running/style/index.js
+++ b/packages/running/style/index.js
@@ -4,6 +4,7 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
+import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 
diff --git a/packages/services/.vscode/launch.json b/packages/services/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/services/.vscode/launch.json
+++ b/packages/services/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/services/README.md b/packages/services/README.md
index e99bc9495cfb..0a2834cef8a8 100644
--- a/packages/services/README.md
+++ b/packages/services/README.md
@@ -2,9 +2,9 @@
 
 Javascript client for the Jupyter services REST APIs
 
-[API Docs](https://jupyterlab.readthedocs.io/en/3.6.x/api/)
+[API Docs](https://jupyterlab.readthedocs.io/en/stable/api/)
 
-[REST API Docs](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml)
+[REST API Docs](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml)
 
 Note: All functions and classes using the REST API allow a `serverSettings`
 parameter to configure requests.
diff --git a/packages/services/architecture.xml b/packages/services/architecture.xml
index f256a210ab02..1c843830a497 100644
--- a/packages/services/architecture.xml
+++ b/packages/services/architecture.xml
@@ -1 +1,6 @@
-<mxfile host="app.diagrams.net" modified="2020-03-13T08:51:31.160Z" agent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0" etag="8vOckl95ZjDc2UqtZ9NG" version="12.8.4" type="device"><diagram id="iJkR0Bys10QfvVMkm8di" name="Page-1">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</diagram></mxfile>
\ No newline at end of file
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
+<mxfile host="app.diagrams.net" modified="2020-03-13T08:51:31.160Z" agent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0" etag="8vOckl95ZjDc2UqtZ9NG" version="12.8.4" type="device"><diagram id="iJkR0Bys10QfvVMkm8di" name="Page-1">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</diagram></mxfile>
diff --git a/packages/services/babel.config.js b/packages/services/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/services/babel.config.js
+++ b/packages/services/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/services/examples/browser-require/index.html b/packages/services/examples/browser-require/index.html
index ebe675c0fe68..a818a43ecb4a 100644
--- a/packages/services/examples/browser-require/index.html
+++ b/packages/services/examples/browser-require/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!doctype html>
 <html lang="en">
   <head>
@@ -15,6 +20,7 @@
     </style>
   </head>
   <body>
+
     <h1>Run code!</h1>
     <p>
       Type code in the text area and click run to execute it.
@@ -33,8 +39,9 @@ <h1>Run code!</h1>
     require.config({
         paths: {
           'jquery': 'https://code.jquery.com/jquery-2.2.4.min',
-          '@jupyterlab/services': 'https://unpkg.com/@jupyterlab/services@^0.48/dist/index',
-        }
+          '@jupyterlab/services': 'https://unpkg.com/@jupyterlab/services@*/dist/dist/index',
+        },
+        waitSeconds: 60
     });
     </script>
     <script src="{{page_config['fullStaticUrl'] | e}}/index.js" main="index"></script>
diff --git a/packages/services/examples/browser-require/main.py b/packages/services/examples/browser-require/main.py
new file mode 100644
index 000000000000..6b42d85aef9a
--- /dev/null
+++ b/packages/services/examples/browser-require/main.py
@@ -0,0 +1,65 @@
+"""
+Copyright (c) Jupyter Development Team.
+Distributed under the terms of the Modified BSD License.
+"""
+import os
+import os.path as osp
+
+from jupyter_server.base.handlers import JupyterHandler
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
+from jupyter_server.utils import url_path_join as ujoin
+from jupyterlab_server import LabServerApp
+
+HERE = osp.dirname(__file__)
+
+
+def _jupyter_server_extension_points():
+    return [{"module": __name__, "app": ExampleApp}]
+
+
+class ExampleHandler(ExtensionHandlerJinjaMixin, ExtensionHandlerMixin, JupyterHandler):
+    """Handle requests between the main app page and notebook server."""
+
+    def get(self):
+        """Get the main page for the application's interface."""
+        config_data = {
+            # Use camelCase here, since that's what the lab components expect
+            "baseUrl": self.base_url,
+            "token": self.settings["token"],
+            "fullStaticUrl": ujoin(self.base_url, "static", self.name),
+            "frontendUrl": ujoin(self.base_url, "example/"),
+        }
+        return self.write(
+            self.render_template(
+                "index.html",
+                static=self.static_url,
+                base_url=self.base_url,
+                token=self.settings["token"],
+                page_config=config_data,
+            )
+        )
+
+
+class ExampleApp(LabServerApp):
+    extension_url = "/example"
+    app_url = "/example"
+    default_url = "/example"
+    name = __name__
+    # In jupyter-server v2 terminals are an extension
+    load_other_extensions = True
+    app_name = "JupyterLab Example Service"
+    static_dir = os.path.join(HERE, "static")
+    templates_dir = os.path.join(HERE)
+    app_settings_dir = os.path.join(HERE, "build", "application_settings")
+    schemas_dir = os.path.join(HERE, "build", "schemas")
+    themes_dir = os.path.join(HERE, "build", "themes")
+    user_settings_dir = os.path.join(HERE, "build", "user_settings")
+    workspaces_dir = os.path.join(HERE, "build", "workspaces")
+
+    def initialize_handlers(self):
+        """Add example handler to Lab Server's handler list."""
+        self.handlers.append(("/example", ExampleHandler))
+
+
+if __name__ == "__main__":
+    ExampleApp.launch_instance()
diff --git a/packages/services/examples/browser-require/static/index.js b/packages/services/examples/browser-require/static/index.js
index 3fecb25c3a85..7ad22c40ee74 100644
--- a/packages/services/examples/browser-require/static/index.js
+++ b/packages/services/examples/browser-require/static/index.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 require(['jquery', '@jupyterlab/services'], function($, services) {
   /* eslint-disable no-console */
   console.log('Starting example');
@@ -10,12 +15,20 @@ require(['jquery', '@jupyterlab/services'], function($, services) {
   // start a single kernel for the page
   kernelManager.startNew(kernelOptions).then(function(kernel) {
     console.log('Kernel started:', kernel);
-    kernel.requestKernelInfo().then(function(reply) {
-      const content = reply.content;
-      $('#kernel-info').text(content.banner);
-      console.log('Kernel info:', content);
-      console.log('Example started!');
-    });
+    const waitForIdle = (_, status) => {
+      if( status === 'idle' ) {
+        kernel.statusChanged.disconnect(waitForIdle)
+        kernel.requestKernelInfo().then(function(reply) {
+          const content = reply.content;
+          $('#kernel-info').text(content.banner);
+          console.log('Kernel info:', content);
+          console.log('Example started!');
+        });
+      }
+    };
+
+    kernel.statusChanged.connect(waitForIdle);
+
     $('#run').click(function() {
       const code = $('#cell').val();
       console.log('Executing:', code);
diff --git a/packages/services/examples/browser/main.py b/packages/services/examples/browser/main.py
index 57fd7fb92f37..d37efa58e19a 100644
--- a/packages/services/examples/browser/main.py
+++ b/packages/services/examples/browser/main.py
@@ -6,14 +6,10 @@
 import os
 import os.path as osp
 
-from jupyter_server.base.handlers import FileFindHandler, JupyterHandler
-from jupyter_server.extension.handler import (
-    ExtensionHandlerJinjaMixin,
-    ExtensionHandlerMixin,
-)
+from jupyter_server.base.handlers import JupyterHandler
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
 from jupyter_server.utils import url_path_join as ujoin
-from jupyterlab_server import LabConfig, LabServerApp
-from traitlets import Unicode
+from jupyterlab_server import LabServerApp
 
 HERE = osp.dirname(__file__)
 
@@ -50,7 +46,6 @@ def get(self):
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     default_url = "/example"
     app_url = "/example"
diff --git a/packages/services/examples/browser/package.json b/packages/services/examples/browser/package.json
index a7efcff9520c..1b2fc42ab11e 100644
--- a/packages/services/examples/browser/package.json
+++ b/packages/services/examples/browser/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/example-services-browser",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "files": [
     "lib/*.{d.ts,js,js.map}"
@@ -10,14 +10,14 @@
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/coreutils": "^1.11.0"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@lumino/coreutils": "^2.1.2"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0"
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1"
   }
 }
diff --git a/packages/services/examples/browser/src/comm.ts b/packages/services/examples/browser/src/comm.ts
index a32a947b8a20..06ca2be6ce3a 100644
--- a/packages/services/examples/browser/src/comm.ts
+++ b/packages/services/examples/browser/src/comm.ts
@@ -6,7 +6,7 @@ import { PromiseDelegate } from '@lumino/coreutils';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   // Start a python kernel
   const kernelManager = new KernelManager();
   const kernel = await kernelManager.startNew({ name: 'python' });
diff --git a/packages/services/examples/browser/src/config.ts b/packages/services/examples/browser/src/config.ts
index 089cf9520385..ed02c0dc28a3 100644
--- a/packages/services/examples/browser/src/config.ts
+++ b/packages/services/examples/browser/src/config.ts
@@ -5,7 +5,7 @@ import { ConfigSection, ConfigWithDefaults } from '@jupyterlab/services';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   log('Config');
   // The base url of the Jupyter server.
 
diff --git a/packages/services/examples/browser/src/contents.ts b/packages/services/examples/browser/src/contents.ts
index 2804fee6ef33..2fecba6b49a9 100644
--- a/packages/services/examples/browser/src/contents.ts
+++ b/packages/services/examples/browser/src/contents.ts
@@ -5,7 +5,7 @@ import { ContentsManager } from '@jupyterlab/services';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   const contents = new ContentsManager();
 
   log('Create a new directory');
diff --git a/packages/services/examples/browser/src/kernel.ts b/packages/services/examples/browser/src/kernel.ts
index 94a0a67a5d6a..e5f30d9e25ec 100644
--- a/packages/services/examples/browser/src/kernel.ts
+++ b/packages/services/examples/browser/src/kernel.ts
@@ -5,7 +5,7 @@ import { KernelAPI, KernelManager, KernelMessage } from '@jupyterlab/services';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   // Start a python kernel
   const kernelManager = new KernelManager();
   const kernel = await kernelManager.startNew({ name: 'python' });
diff --git a/packages/services/examples/browser/src/kernelspec.ts b/packages/services/examples/browser/src/kernelspec.ts
index b69969779c0b..54c6cba9884d 100644
--- a/packages/services/examples/browser/src/kernelspec.ts
+++ b/packages/services/examples/browser/src/kernelspec.ts
@@ -5,7 +5,7 @@ import { KernelSpecManager } from '@jupyterlab/services';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   log('Get the list of kernel specs');
   const kernelSpecManager = new KernelSpecManager();
   await kernelSpecManager.ready;
diff --git a/packages/services/examples/browser/src/log.ts b/packages/services/examples/browser/src/log.ts
index 7c45470a74b5..8cb6000bad0f 100644
--- a/packages/services/examples/browser/src/log.ts
+++ b/packages/services/examples/browser/src/log.ts
@@ -1,6 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function log(content: any): void {
   const el = document.getElementById('output');
   if (typeof content !== 'string') {
diff --git a/packages/services/examples/browser/src/session.ts b/packages/services/examples/browser/src/session.ts
index 854b073fdd0e..332d038ff0e3 100644
--- a/packages/services/examples/browser/src/session.ts
+++ b/packages/services/examples/browser/src/session.ts
@@ -10,7 +10,7 @@ import {
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   log('Starting session manager');
   const kernelManager = new KernelManager();
   const sessionManager = new SessionManager({ kernelManager });
diff --git a/packages/services/examples/browser/src/terminal.ts b/packages/services/examples/browser/src/terminal.ts
index c0869a5e5521..ef07e230663b 100644
--- a/packages/services/examples/browser/src/terminal.ts
+++ b/packages/services/examples/browser/src/terminal.ts
@@ -5,7 +5,7 @@ import { Terminal, TerminalManager } from '@jupyterlab/services';
 
 import { log } from './log';
 
-export async function main() {
+export async function main(): Promise<void> {
   log('Terminal');
 
   // See if terminals are available
diff --git a/packages/services/examples/browser/templates/index.html b/packages/services/examples/browser/templates/index.html
index 76dff19fe6fb..2ab4d4d8d82e 100644
--- a/packages/services/examples/browser/templates/index.html
+++ b/packages/services/examples/browser/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!doctype html>
 <html lang="en">
   <head>
diff --git a/packages/services/examples/browser/webpack.config.js b/packages/services/examples/browser/webpack.config.js
index 17979e8bfbe5..c793fbbdfe5d 100644
--- a/packages/services/examples/browser/webpack.config.js
+++ b/packages/services/examples/browser/webpack.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const webpack = require('webpack');
 const crypto = require('crypto');
 
@@ -16,10 +21,8 @@ module.exports = {
   },
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ],
   bail: true
diff --git a/packages/services/examples/node/main.py b/packages/services/examples/node/main.py
index 79547904c009..b66a2a89e183 100644
--- a/packages/services/examples/node/main.py
+++ b/packages/services/examples/node/main.py
@@ -1,8 +1,6 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-from __future__ import absolute_import, print_function
-
 import json
 import os.path as osp
 
@@ -17,23 +15,24 @@ def _jupyter_server_extension_points():
 
 
 class NodeApp(ProcessApp):
-
     name = __name__
-    serverapp_config = dict(allow_origin="*")
+    serverapp_config = {"allow_origin": "*"}
 
     def get_command(self):
         """Get the command and kwargs to run."""
         # Run the node script with command arguments.
-        config = dict(
-            baseUrl="http://localhost:{}{}".format(self.serverapp.port, self.settings["base_url"]),
-            token=self.settings["token"],
-        )
+        config = {
+            "baseUrl": "http://localhost:{}{}".format(
+                self.serverapp.port, self.settings["base_url"]
+            ),
+            "token": self.settings["token"],
+        }
 
         with open(osp.join(HERE, "config.json"), "w") as fid:
             json.dump(config, fid)
 
         cmd = [which("node"), "index.js", "--jupyter-config-data=./config.json"]
-        return cmd, dict(cwd=HERE)
+        return cmd, {"cwd": HERE}
 
 
 if __name__ == "__main__":
diff --git a/packages/services/examples/node/package.json b/packages/services/examples/node/package.json
index 934c504549f1..b41b10666282 100644
--- a/packages/services/examples/node/package.json
+++ b/packages/services/examples/node/package.json
@@ -1,15 +1,14 @@
 {
   "name": "node-example",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "scripts": {
     "clean": "rimraf node_modules",
     "update": "rimraf node_modules/@jupyterlab/services && npm install"
   },
   "dependencies": {
-    "@jupyterlab/services": "^6.6.6",
-    "node-fetch": "^2.6.0",
-    "ws": "^7.4.6"
+    "@jupyterlab/services": "^7.0.8",
+    "ws": "^8.11.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0"
diff --git a/packages/services/examples/node/templates/index.html b/packages/services/examples/node/templates/index.html
index f1af9ec555f7..11d8f23ef7a2 100644
--- a/packages/services/examples/node/templates/index.html
+++ b/packages/services/examples/node/templates/index.html
@@ -1,13 +1,18 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!DOCTYPE html>
 <html>
 <head>
   <title>{{page_config['appName'] | e}}</title>
   {# Copy so we do not modify the page_config with updates. #}
   {% set page_config_full = page_config.copy() %}
-    
+
   {# Set a dummy variable - we just want the side effect of the update. #}
   {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
-    
+
   <script id="jupyter-config-data" type="application/json">
     {{ page_config_full | tojson }}
   </script>
diff --git a/packages/services/examples/typescript-browser-with-output/main.py b/packages/services/examples/typescript-browser-with-output/main.py
index 1bebf29b5aad..dab0481c8918 100644
--- a/packages/services/examples/typescript-browser-with-output/main.py
+++ b/packages/services/examples/typescript-browser-with-output/main.py
@@ -6,14 +6,10 @@
 import os
 import os.path as osp
 
-from jupyter_server.base.handlers import FileFindHandler, JupyterHandler
-from jupyter_server.extension.handler import (
-    ExtensionHandlerJinjaMixin,
-    ExtensionHandlerMixin,
-)
+from jupyter_server.base.handlers import JupyterHandler
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
 from jupyter_server.utils import url_path_join as ujoin
-from jupyterlab_server import LabConfig, LabServerApp
-from traitlets import Unicode
+from jupyterlab_server import LabServerApp
 
 HERE = osp.dirname(__file__)
 
@@ -50,7 +46,6 @@ def get(self):
 
 
 class ExampleApp(LabServerApp):
-
     extension_url = "/example"
     app_url = "/example"
     default_url = "/example"
diff --git a/packages/services/examples/typescript-browser-with-output/package.json b/packages/services/examples/typescript-browser-with-output/package.json
index 418ebfa7e7e6..f55faaf70a7a 100644
--- a/packages/services/examples/typescript-browser-with-output/package.json
+++ b/packages/services/examples/typescript-browser-with-output/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/example-services-outputarea",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "private": true,
   "sideEffects": [
     "style/*"
@@ -16,18 +16,18 @@
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/outputarea": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/outputarea": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8"
   },
   "devDependencies": {
-    "css-loader": "^5.0.1",
+    "css-loader": "^6.7.1",
     "rimraf": "~3.0.0",
-    "style-loader": "~2.0.0",
-    "typescript": "~4.1.3",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0"
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1"
   },
   "styleModule": "style/index.js"
 }
diff --git a/packages/services/examples/typescript-browser-with-output/templates/index.html b/packages/services/examples/typescript-browser-with-output/templates/index.html
index e785f9953b91..a101550fa9b3 100644
--- a/packages/services/examples/typescript-browser-with-output/templates/index.html
+++ b/packages/services/examples/typescript-browser-with-output/templates/index.html
@@ -1,3 +1,8 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
 <!doctype html>
 <html lang="en">
   <head>
diff --git a/packages/services/examples/typescript-browser-with-output/webpack.config.js b/packages/services/examples/typescript-browser-with-output/webpack.config.js
index c259fd577a9a..684c91fa6a44 100644
--- a/packages/services/examples/typescript-browser-with-output/webpack.config.js
+++ b/packages/services/examples/typescript-browser-with-output/webpack.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const path = require('path');
 const webpack = require('webpack');
 const crypto = require('crypto');
@@ -18,8 +23,8 @@ module.exports = {
   module: {
     rules: [
       { test: /\.css$/, use: ['style-loader', 'css-loader'] },
-      { test: /\.md$/, use: 'raw-loader' },
-      { test: /\.txt$/, use: 'raw-loader' },
+      { test: /\.md$/, type: 'asset/source' },
+      { test: /\.txt$/, type: 'asset/source' },
       {
         test: /\.js$/,
         use: ['source-map-loader'],
@@ -27,38 +32,36 @@ module.exports = {
         // eslint-disable-next-line no-undef
         exclude: /node_modules/
       },
-      { test: /\.(jpg|png|gif)$/, use: 'file-loader' },
-      { test: /\.js.map$/, use: 'file-loader' },
+      { test: /\.(jpg|png|gif)$/, type: 'asset/resource' },
+      { test: /\.js.map$/, type: 'asset/resource' },
       {
         test: /\.woff2(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader?limit=10000&mimetype=application/font-woff'
+        type: 'asset'
       },
       {
         test: /\.woff(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader?limit=10000&mimetype=application/font-woff'
+        type: 'asset'
       },
       {
         test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader?limit=10000&mimetype=application/octet-stream'
+        type: 'asset'
       },
       {
         test: /\.otf(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader?limit=10000&mimetype=application/octet-stream'
+        type: 'asset'
       },
-      { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, use: 'file-loader' },
+      { test: /\.eot(\?v=\d+\.\d+\.\d+)?$/, type: 'asset/resource' },
       {
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
-        use: 'url-loader?limit=10000&mimetype=image/svg+xml'
+        type: 'asset'
       }
     ]
   },
   bail: true,
   plugins: [
     new webpack.DefinePlugin({
-      // Needed for Blueprint. See https://github.com/palantir/blueprint/issues/4393
-      'process.env': '{}',
       // Needed for various packages using cwd(), like the path polyfill
-      process: { cwd: () => '/' }
+      process: { cwd: () => '/', env: {} }
     })
   ]
 };
diff --git a/packages/services/jest.config.js b/packages/services/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/services/jest.config.js
+++ b/packages/services/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/services/package.json b/packages/services/package.json
index 3b54fa40ef18..a822c6f75929 100644
--- a/packages/services/package.json
+++ b/packages/services/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/services",
-  "version": "6.6.6",
+  "version": "7.0.8",
   "description": "Client APIs for the Jupyter services REST APIs",
   "keywords": [
     "jupyter",
@@ -19,7 +19,6 @@
   "author": "Project Jupyter",
   "main": "lib/index.js",
   "browser": {
-    "node-fetch": false,
     "ws": "./lib/shim/ws.js"
   },
   "typings": "lib/index.d.ts",
@@ -31,7 +30,8 @@
     "lib/*.js",
     "lib/*.d.ts",
     "dist/*.js",
-    "dist/**/*.js"
+    "dist/**/*.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -39,40 +39,35 @@
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "docs": "typedoc src",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test": "jest -i",
+    "test:cov": "jest -i --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/observables": "^4.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "node-fetch": "^2.6.0",
-    "ws": "^7.4.6"
+    "@jupyter/ydoc": "^1.0.2",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "ws": "^8.11.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/node-fetch": "^2.5.4",
-    "@types/text-encoding": "^0.0.35",
-    "@types/ws": "^7.4.4",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/ws": "^8.5.3",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "text-encoding": "^0.7.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3",
-    "webpack": "^5.41.1",
-    "webpack-cli": "^4.1.0"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/services/src/basemanager.ts b/packages/services/src/basemanager.ts
index d3f1d479a672..1438d2fc1692 100644
--- a/packages/services/src/basemanager.ts
+++ b/packages/services/src/basemanager.ts
@@ -31,6 +31,11 @@ export interface IManager extends IObservableDisposable {
    * A promise that resolves when the manager is initially ready.
    */
   readonly ready: Promise<void>;
+
+  /**
+   * Whether the manager is active.
+   */
+  readonly isActive: boolean;
 }
 
 export abstract class BaseManager implements IManager {
@@ -67,6 +72,13 @@ export abstract class BaseManager implements IManager {
    */
   abstract ready: Promise<void>;
 
+  /**
+   * Whether the manager is active.
+   */
+  get isActive(): boolean {
+    return true;
+  }
+
   /**
    * Dispose of the delegate and invoke the callback function.
    */
diff --git a/packages/services/src/config/index.ts b/packages/services/src/config/index.ts
index 8e28c761cbd7..176f4d601bfa 100644
--- a/packages/services/src/config/index.ts
+++ b/packages/services/src/config/index.ts
@@ -104,7 +104,7 @@ class DefaultConfigSection implements IConfigSection {
    * Load the initial data for this section.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/config).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/config).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    */
@@ -125,7 +125,7 @@ class DefaultConfigSection implements IConfigSection {
    * Modify the stored config values.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/config).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/config).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    *
@@ -181,7 +181,7 @@ export class ConfigWithDefaults {
    * Set a config value.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/config).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/config).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    *
diff --git a/packages/services/src/contents/index.ts b/packages/services/src/contents/index.ts
index a5535b25a75c..4e68ff5fb94a 100644
--- a/packages/services/src/contents/index.ts
+++ b/packages/services/src/contents/index.ts
@@ -1,14 +1,12 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { PathExt, URLExt } from '@jupyterlab/coreutils';
+import type { ISharedDocument } from '@jupyter/ydoc';
 
-import { ModelDB } from '@jupyterlab/observables';
+import { PathExt, URLExt } from '@jupyterlab/coreutils';
 
 import { PartialJSONObject } from '@lumino/coreutils';
 
-import { each } from '@lumino/algorithm';
-
 import { IDisposable } from '@lumino/disposable';
 
 import { ISignal, Signal } from '@lumino/signaling';
@@ -222,6 +220,49 @@ export namespace Contents {
     newValue: Partial<IModel> | null;
   }
 
+  /**
+   * A factory interface for creating `ISharedDocument` objects.
+   */
+  export interface ISharedFactory {
+    /**
+     * Whether the IDrive supports real-time collaboration or not.
+     * Note: If it is not provided, it is false by default.
+     */
+    readonly collaborative?: boolean;
+
+    /**
+     * Create a new `ISharedDocument` instance.
+     *
+     * It should return `undefined` if the factory is not able to create a `ISharedDocument`.
+     */
+    createNew(options: ISharedFactoryOptions): ISharedDocument | undefined;
+  }
+
+  /**
+   * The options used to instantiate a ISharedDocument
+   */
+  export interface ISharedFactoryOptions {
+    /**
+     * The path of the file.
+     */
+    path: string;
+    /**
+     * The format of the document. If null, the document won't be
+     * collaborative.
+     */
+    format: FileFormat;
+    /**
+     * The content type of the document.
+     */
+    contentType: ContentType;
+    /**
+     * Wether the document is collaborative or not.
+     *
+     * The default value is `true`.
+     */
+    collaborative?: boolean;
+  }
+
   /**
    * The interface for a contents manager.
    */
@@ -287,11 +328,11 @@ export namespace Contents {
     driveName(path: string): string;
 
     /**
-     * Given a path, get a ModelDB.IFactory from the
+     * Given a path, get a shared model IFactory from the
      * relevant backend. Returns `null` if the backend
      * does not provide one.
      */
-    getModelDBFactory(path: string): ModelDB.IFactory | null;
+    getSharedModelFactory(path: string): ISharedFactory | null;
 
     /**
      * Get a file or directory.
@@ -430,10 +471,10 @@ export namespace Contents {
     readonly serverSettings: ServerConnection.ISettings;
 
     /**
-     * An optional ModelDB.IFactory instance for the
+     * An optional shared model factory instance for the
      * drive.
      */
-    readonly modelDBFactory?: ModelDB.IFactory;
+    readonly sharedModelFactory?: ISharedFactory;
 
     /**
      * A signal emitted when a file operation takes place.
@@ -454,7 +495,7 @@ export namespace Contents {
     /**
      * Get an encoded download url given a file path.
      *
-     * @param A promise which resolves with the absolute POSIX
+     * @returns A promise which resolves with the absolute POSIX
      *   file path on the server.
      *
      * #### Notes
@@ -621,13 +662,13 @@ export class ContentsManager implements Contents.IManager {
   }
 
   /**
-   * Given a path, get a ModelDB.IFactory from the
-   * relevant backend. Returns `undefined` if the backend
+   * Given a path, get a shared model factory from the
+   * relevant backend. Returns `null` if the backend
    * does not provide one.
    */
-  getModelDBFactory(path: string): ModelDB.IFactory | null {
+  getSharedModelFactory(path: string): Contents.ISharedFactory | null {
     const [drive] = this._driveForPath(path);
-    return drive?.modelDBFactory ?? null;
+    return drive?.sharedModelFactory ?? null;
   }
 
   /**
@@ -720,12 +761,9 @@ export class ContentsManager implements Contents.IManager {
     return drive.get(localPath, options).then(contentsModel => {
       const listing: Contents.IModel[] = [];
       if (contentsModel.type === 'directory' && contentsModel.content) {
-        each(contentsModel.content, (item: Contents.IModel) => {
-          listing.push({
-            ...item,
-            path: this._toGlobalPath(drive, item.path)
-          } as Contents.IModel);
-        });
+        for (const item of contentsModel.content) {
+          listing.push({ ...item, path: this._toGlobalPath(drive, item.path) });
+        }
         return {
           ...contentsModel,
           path: this._toGlobalPath(drive, localPath),
@@ -1071,7 +1109,7 @@ export class Drive implements Contents.IDrive {
    *
    * @returns A promise which resolves with the file content.
    *
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async get(
     localPath: string,
@@ -1130,7 +1168,7 @@ export class Drive implements Contents.IDrive {
    *    file is created.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async newUntitled(
     options: Contents.ICreateOptions = {}
@@ -1172,7 +1210,7 @@ export class Drive implements Contents.IDrive {
    * @returns A promise which resolves when the file is deleted.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).
    */
   async delete(localPath: string): Promise<void> {
     const url = this._getUrl(localPath);
@@ -1203,7 +1241,7 @@ export class Drive implements Contents.IDrive {
    *   the file is renamed.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async rename(
     oldLocalPath: string,
@@ -1243,7 +1281,7 @@ export class Drive implements Contents.IDrive {
    * #### Notes
    * Ensure that `model.content` is populated for the file.
    *
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async save(
     localPath: string,
@@ -1284,7 +1322,7 @@ export class Drive implements Contents.IDrive {
    * #### Notes
    * The server will select the name of the copied file.
    *
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async copy(fromFile: string, toDir: string): Promise<Contents.IModel> {
     const settings = this.serverSettings;
@@ -1317,7 +1355,7 @@ export class Drive implements Contents.IDrive {
    *   checkpoint is created.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async createCheckpoint(
     localPath: string
@@ -1347,7 +1385,7 @@ export class Drive implements Contents.IDrive {
    *    the file.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents) and validates the response model.
    */
   async listCheckpoints(
     localPath: string
@@ -1382,7 +1420,7 @@ export class Drive implements Contents.IDrive {
    * @returns A promise which resolves when the checkpoint is restored.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).
    */
   async restoreCheckpoint(
     localPath: string,
@@ -1411,7 +1449,7 @@ export class Drive implements Contents.IDrive {
    * @returns A promise which resolves when the checkpoint is deleted.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).
    */
   async deleteCheckpoint(
     localPath: string,
@@ -1486,7 +1524,7 @@ export namespace Drive {
     /**
      * A REST endpoint for drive requests.
      * If not given, defaults to the Jupyter
-     * REST API given by [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/contents).
+     * REST API given by [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/contents).
      */
     apiEndpoint?: string;
   }
diff --git a/packages/services/src/event/index.ts b/packages/services/src/event/index.ts
index 2ceccfa09731..ddba24bdf784 100644
--- a/packages/services/src/event/index.ts
+++ b/packages/services/src/event/index.ts
@@ -1,11 +1,11 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { PageConfig, URLExt } from '@jupyterlab/coreutils';
-import { PromiseDelegate } from '@lumino/coreutils';
+import { URLExt } from '@jupyterlab/coreutils';
+import { JSONObject, ReadonlyJSONObject } from '@lumino/coreutils';
 import { IDisposable } from '@lumino/disposable';
 import { Poll } from '@lumino/polling';
-import { ISignal, Signal } from '@lumino/signaling';
+import { IStream, Signal, Stream } from '@lumino/signaling';
 import { ServerConnection } from '../serverconnection';
 
 /**
@@ -16,7 +16,7 @@ const SERVICE_EVENTS_URL = 'api/events';
 /**
  * The events API service manager.
  */
-export class EventManager implements IDisposable {
+export class EventManager implements Event.IManager {
   /**
    * Create a new event manager.
    */
@@ -24,15 +24,12 @@ export class EventManager implements IDisposable {
     this.serverSettings =
       options.serverSettings ?? ServerConnection.makeSettings();
 
+    // If subscription fails, the poll attempts to reconnect and backs off.
     this._poll = new Poll({ factory: () => this._subscribe() });
-    this._stream = new Private.Stream(this);
+    this._stream = new Stream(this);
 
-    // TODO: Remove this logic in JupyterLab 4
-    if (this._isDisabled) {
-      this._stream.stop();
-    } else {
-      void this._poll.start();
-    }
+    // Subscribe to the events socket.
+    void this._poll.start();
   }
 
   /**
@@ -44,7 +41,7 @@ export class EventManager implements IDisposable {
    * Whether the event manager is disposed.
    */
   get isDisposed(): boolean {
-    return this._isDisposed;
+    return this._poll.isDisposed;
   }
 
   /**
@@ -61,7 +58,6 @@ export class EventManager implements IDisposable {
     if (this.isDisposed) {
       return;
     }
-    this._isDisposed = true;
 
     // Clean up poll.
     this._poll.dispose();
@@ -105,7 +101,7 @@ export class EventManager implements IDisposable {
    */
   private _subscribe(): Promise<void> {
     return new Promise<void>((_, reject) => {
-      if (this.isDisposed || this._isDisabled) {
+      if (this.isDisposed) {
         return;
       }
 
@@ -116,19 +112,14 @@ export class EventManager implements IDisposable {
       const socket = (this._socket = new WebSocket(url));
       const stream = this._stream;
 
-      // Cause the poll to tick a rejection and back off if the socket closes.
       socket.onclose = () => reject(new Error('EventManager socket closed'));
       socket.onmessage = msg => msg.data && stream.emit(JSON.parse(msg.data));
     });
   }
 
-  // TODO: Remove this check for the `jupyter_server` version.
-  // It is only necessary in JupyterLab < 4.
-  private _isDisabled = 2 > PageConfig.getNotebookVersion()[0];
-  private _isDisposed = false;
   private _poll: Poll;
   private _socket: WebSocket | null = null;
-  private _stream: Private.Stream<this, Event.Emission>;
+  private _stream: Stream<this, Event.Emission>;
 }
 
 /**
@@ -153,8 +144,7 @@ export namespace Event {
   /**
    * The event emission type.
    */
-  export type Emission = {
-    [key: string]: any;
+  export type Emission = ReadonlyJSONObject & {
     schema_id: string;
   };
 
@@ -162,7 +152,7 @@ export namespace Event {
    * The event request type.
    */
   export type Request = {
-    data: { [key: string]: any };
+    data: JSONObject;
     schema_id: string;
     version: string;
   };
@@ -175,63 +165,18 @@ export namespace Event {
   /**
    * The interface for the event bus front-end.
    */
-  export interface IManager extends EventManager {}
-
-  /**
-   * An object that is both a signal and an async iterable.
-   */
-  export interface IStream<T, U> extends ISignal<T, U>, AsyncIterable<U> {}
-}
-
-/**
- * A namespace for private module data.
- */
-namespace Private {
-  /**
-   * A pending promise in a promise chain underlying a stream.
-   */
-  export type Pending<U> = PromiseDelegate<{ args: U; next: Pending<U> }>;
-
-  /**
-   * A stream with the characteristics of a signal and an async iterable.
-   */
-  export class Stream<T, U> extends Signal<T, U> {
+  export interface IManager extends IDisposable {
     /**
-     * Return an async iterator that yields every emission.
+     * The server settings used to make API requests.
      */
-    async *[Symbol.asyncIterator](): AsyncIterableIterator<U> {
-      let pending = this._pending;
-      while (true) {
-        try {
-          const { args, next } = await pending.promise;
-          pending = next;
-          yield args;
-        } catch (_) {
-          return; // Any promise rejection stops the iterator.
-        }
-      }
-    }
-
+    readonly serverSettings: ServerConnection.ISettings;
     /**
-     * Emit the signal, invoke the connected slots, and yield the emission.
-     *
-     * @param args - The args to pass to the connected slots.
+     * An event stream that emits and yields each new event.
      */
-    emit(args: U): void {
-      const pending = this._pending;
-      this._pending = new PromiseDelegate();
-      pending.resolve({ args, next: this._pending });
-      super.emit(args);
-    }
-
+    readonly stream: Event.Stream;
     /**
-     * Stop the stream's async iteration.
+     * Post an event request to be emitted by the event bus.
      */
-    stop(): void {
-      this._pending.promise.catch(() => undefined);
-      this._pending.reject('stop');
-    }
-
-    private _pending: Private.Pending<U> = new PromiseDelegate();
+    emit(event: Event.Request): Promise<void>;
   }
 }
diff --git a/packages/services/src/kernel/default.ts b/packages/services/src/kernel/default.ts
index df8b2c81bc5d..65b9f6587139 100644
--- a/packages/services/src/kernel/default.ts
+++ b/packages/services/src/kernel/default.ts
@@ -21,7 +21,7 @@ import {
   KernelShellFutureHandler
 } from './future';
 
-import * as serialize from './serialize';
+import { deserialize, serialize } from './serialize';
 
 import * as validate from './validate';
 import { KernelSpec, KernelSpecAPI } from '../kernelspec';
@@ -407,7 +407,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
       KernelMessage.isInfoRequestMsg(msg)
     ) {
       if (this.connectionStatus === 'connected') {
-        this._ws!.send(serialize.serialize(msg));
+        this._ws!.send(serialize(msg, this._ws!.protocol));
         return;
       } else {
         throw new Error('Could not send message: status is not connected');
@@ -425,7 +425,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
       this.connectionStatus === 'connected' &&
       this._kernelSession !== RESTARTING_KERNEL_SESSION
     ) {
-      this._ws!.send(serialize.serialize(msg));
+      this._ws!.send(serialize(msg, this._ws!.protocol));
     } else if (queue) {
       this._pendingMessages.push(msg);
     } else {
@@ -437,7 +437,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
    * Interrupt a kernel.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    *
@@ -458,7 +458,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
    * Request a kernel restart.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels)
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels)
    * and validates the response model.
    *
    * Any existing Future or Comm objects are cleared once the kernel has
@@ -526,7 +526,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
    * Shutdown a kernel.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    *
@@ -629,9 +629,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content
     });
-    return Private.handleShellMessage(this, msg) as Promise<
-      KernelMessage.ICompleteReplyMsg
-    >;
+    return Private.handleShellMessage(
+      this,
+      msg
+    ) as Promise<KernelMessage.ICompleteReplyMsg>;
   }
 
   /**
@@ -653,9 +654,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content: content
     });
-    return Private.handleShellMessage(this, msg) as Promise<
-      KernelMessage.IInspectReplyMsg
-    >;
+    return Private.handleShellMessage(
+      this,
+      msg
+    ) as Promise<KernelMessage.IInspectReplyMsg>;
   }
 
   /**
@@ -677,9 +679,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content
     });
-    return Private.handleShellMessage(this, msg) as Promise<
-      KernelMessage.IHistoryReplyMsg
-    >;
+    return Private.handleShellMessage(
+      this,
+      msg
+    ) as Promise<KernelMessage.IHistoryReplyMsg>;
   }
 
   /**
@@ -783,9 +786,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content
     });
-    return Private.handleShellMessage(this, msg) as Promise<
-      KernelMessage.IIsCompleteReplyMsg
-    >;
+    return Private.handleShellMessage(
+      this,
+      msg
+    ) as Promise<KernelMessage.IIsCompleteReplyMsg>;
   }
 
   /**
@@ -805,9 +809,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content
     });
-    return Private.handleShellMessage(this, msg) as Promise<
-      KernelMessage.ICommInfoReplyMsg
-    >;
+    return Private.handleShellMessage(
+      this,
+      msg
+    ) as Promise<KernelMessage.ICommInfoReplyMsg>;
   }
 
   /**
@@ -818,7 +823,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
    */
   sendInputReply(
     content: KernelMessage.IInputReplyMsg['content'],
-    parent_header?: KernelMessage.IInputReplyMsg['parent_header']
+    parent_header: KernelMessage.IInputReplyMsg['parent_header']
   ): void {
     const msg = KernelMessage.createMessage({
       msgType: 'input_reply',
@@ -827,9 +832,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
       session: this._clientId,
       content
     });
-    if (parent_header) {
-      msg.parent_header = parent_header;
-    }
+    msg.parent_header = parent_header;
 
     this._sendMessage(msg);
     this._anyMessage.emit({ msg, direction: 'send' });
@@ -997,12 +1000,12 @@ export class KernelConnection implements Kernel.IKernelConnection {
       // We've seen it before, update existing outputs with same display_id
       // by handling display_data as update_display_data.
       const updateMsg: KernelMessage.IMessage = {
-        header: (JSONExt.deepCopy(
-          (msg.header as unknown) as JSONObject
-        ) as unknown) as KernelMessage.IHeader,
-        parent_header: (JSONExt.deepCopy(
-          (msg.parent_header as unknown) as JSONObject
-        ) as unknown) as KernelMessage.IHeader,
+        header: JSONExt.deepCopy(
+          msg.header as unknown as JSONObject
+        ) as unknown as KernelMessage.IHeader,
+        parent_header: JSONExt.deepCopy(
+          msg.parent_header as unknown as JSONObject
+        ) as unknown as KernelMessage.IHeader,
         metadata: JSONExt.deepCopy(msg.metadata),
         content: JSONExt.deepCopy(msg.content as JSONObject),
         channel: msg.channel,
@@ -1230,7 +1233,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
   /**
    * Create the kernel websocket connection and add socket status handlers.
    */
-  private _createSocket = () => {
+  private _createSocket = (useProtocols = true) => {
     this._errorIfDisposed();
 
     // Make sure the socket is clear
@@ -1261,7 +1264,13 @@ export class KernelConnection implements Kernel.IKernelConnection {
       url = url + `&token=${encodeURIComponent(token)}`;
     }
 
-    this._ws = new settings.WebSocket(url);
+    // Try opening the websocket with our list of subprotocols.
+    // If the server doesn't handle subprotocols,
+    // the accepted protocol will be ''.
+    // But we cannot send '' as a subprotocol, so if connection fails,
+    // reconnect without subprotocols.
+    const supportedProtocols = useProtocols ? this._supportedProtocols : [];
+    this._ws = new settings.WebSocket(url, supportedProtocols);
 
     // Ensure incoming binary messages are not Blobs
     this._ws.binaryType = 'arraybuffer';
@@ -1505,7 +1514,14 @@ export class KernelConnection implements Kernel.IKernelConnection {
           timeout / 1000
         )} seconds.`
       );
-      this._reconnectTimeout = setTimeout(this._createSocket, timeout);
+      // Try reconnection with subprotocols if the server had supported them.
+      // Otherwise, try reconnection without subprotocols.
+      const useProtocols = this._selectedProtocol !== '' ? true : false;
+      this._reconnectTimeout = setTimeout(
+        this._createSocket,
+        timeout,
+        useProtocols
+      );
       this._reconnectAttempt += 1;
     } else {
       this._updateConnectionStatus('disconnected');
@@ -1530,6 +1546,19 @@ export class KernelConnection implements Kernel.IKernelConnection {
    * Handle a websocket open event.
    */
   private _onWSOpen = (evt: Event) => {
+    if (
+      this._ws!.protocol !== '' &&
+      !this._supportedProtocols.includes(this._ws!.protocol)
+    ) {
+      console.log(
+        'Server selected unknown kernel wire protocol:',
+        this._ws!.protocol
+      );
+      this._updateStatus('dead');
+      throw new Error(`Unknown kernel wire protocol:  ${this._ws!.protocol}`);
+    }
+    // Remember the kernel wire protocol selected by the server.
+    this._selectedProtocol = this._ws!.protocol;
     this._ws!.onclose = this._onWSClose;
     this._ws!.onerror = this._onWSClose;
     this._updateConnectionStatus('connected');
@@ -1542,7 +1571,7 @@ export class KernelConnection implements Kernel.IKernelConnection {
     // Notify immediately if there is an error with the message.
     let msg: KernelMessage.IMessage;
     try {
-      msg = serialize.deserialize(evt.data);
+      msg = deserialize(evt.data, this._ws!.protocol);
       validate.validateMessage(msg);
     } catch (error) {
       error.message = `Kernel message validation error: ${error.message}`;
@@ -1606,6 +1635,10 @@ export class KernelConnection implements Kernel.IKernelConnection {
   private _reconnectLimit = 7;
   private _reconnectAttempt = 0;
   private _reconnectTimeout: any = null;
+  private _supportedProtocols: string[] = Object.values(
+    KernelMessage.supportedKernelWebSocketProtocols
+  );
+  private _selectedProtocol: string = '';
 
   private _futures = new Map<
     string,
@@ -1667,7 +1700,10 @@ namespace Private {
    */
   export async function handleShellMessage<
     T extends KernelMessage.ShellMessageType
-  >(kernel: Kernel.IKernelConnection, msg: KernelMessage.IShellMessage<T>) {
+  >(
+    kernel: Kernel.IKernelConnection,
+    msg: KernelMessage.IShellMessage<T>
+  ): Promise<KernelMessage.IShellMessage<KernelMessage.ShellMessageType>> {
     const future = kernel.sendShellMessage(msg, true);
     return future.done;
   }
@@ -1726,7 +1762,7 @@ namespace Private {
    * that, but doing so would cause your random numbers to follow a non-uniform
    * distribution, which may not be acceptable for your needs.
    */
-  export function getRandomIntInclusive(min: number, max: number) {
+  export function getRandomIntInclusive(min: number, max: number): number {
     min = Math.ceil(min);
     max = Math.floor(max);
     return Math.floor(Math.random() * (max - min + 1)) + min;
diff --git a/packages/services/src/kernel/future.ts b/packages/services/src/kernel/future.ts
index bfe3649eb146..02fb0e29907b 100644
--- a/packages/services/src/kernel/future.ts
+++ b/packages/services/src/kernel/future.ts
@@ -21,7 +21,8 @@ export abstract class KernelFutureHandler<
     REPLY extends KernelMessage.IShellControlMessage
   >
   extends DisposableDelegate
-  implements Kernel.IFuture<REQUEST, REPLY> {
+  implements Kernel.IFuture<REQUEST, REPLY>
+{
   /**
    * Construct a new KernelFutureHandler.
    */
@@ -155,7 +156,7 @@ export abstract class KernelFutureHandler<
    */
   sendInputReply(
     content: KernelMessage.IInputReplyMsg['content'],
-    parent_header?: KernelMessage.IInputReplyMsg['parent_header']
+    parent_header: KernelMessage.IInputReplyMsg['parent_header']
   ): void {
     this._kernel.sendInputReply(content, parent_header);
   }
@@ -209,9 +210,9 @@ export abstract class KernelFutureHandler<
       case 'shell':
         if (
           msg.channel === this.msg.channel &&
-          (msg.parent_header as KernelMessage.IHeader<
-            KernelMessage.MessageType
-          >).msg_id === this.msg.header.msg_id
+          (
+            msg.parent_header as KernelMessage.IHeader<KernelMessage.MessageType>
+          ).msg_id === this.msg.header.msg_id
         ) {
           await this._handleReply(msg as REPLY);
         }
@@ -311,7 +312,8 @@ export abstract class KernelFutureHandler<
 }
 
 export class KernelControlFutureHandler<
-    REQUEST extends KernelMessage.IControlMessage = KernelMessage.IControlMessage,
+    REQUEST extends
+      KernelMessage.IControlMessage = KernelMessage.IControlMessage,
     REPLY extends KernelMessage.IControlMessage = KernelMessage.IControlMessage
   >
   extends KernelFutureHandler<REQUEST, REPLY>
@@ -328,7 +330,7 @@ namespace Private {
   /**
    * A no-op function.
    */
-  export const noOp = () => {
+  export const noOp = (): void => {
     /* no-op */
   };
 
@@ -463,10 +465,8 @@ namespace Private {
       this._hooks.length -= numNulls;
     }
 
-    private _hooks: (
-      | ((msg: T) => boolean | PromiseLike<boolean>)
-      | null
-    )[] = [];
+    private _hooks: (((msg: T) => boolean | PromiseLike<boolean>) | null)[] =
+      [];
     private _compactScheduled: boolean;
     private _processing: Promise<void>;
   }
diff --git a/packages/services/src/kernel/kernel.ts b/packages/services/src/kernel/kernel.ts
index 8b0aee26c0c5..2e4655f3f8de 100644
--- a/packages/services/src/kernel/kernel.ts
+++ b/packages/services/src/kernel/kernel.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IIterator } from '@lumino/algorithm';
-
 import { JSONObject, JSONValue } from '@lumino/coreutils';
 
 import { IDisposable, IObservableDisposable } from '@lumino/disposable';
@@ -177,7 +175,7 @@ export interface IKernelConnection extends IObservableDisposable {
    * @returns A promise that resolves when the kernel has interrupted.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels).
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).
    *
    * The promise is fulfilled on a valid response and rejected otherwise.
    *
@@ -194,7 +192,7 @@ export interface IKernelConnection extends IObservableDisposable {
    * @returns A promise that resolves when the kernel has restarted.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
    *
    * Any existing Future or Comm objects are cleared.
    *
@@ -363,15 +361,13 @@ export interface IKernelConnection extends IObservableDisposable {
    * Send an `input_reply` message.
    *
    * @param content - The content of the reply.
-   * @param parent_header - The parent message header.
    *
    * #### Notes
    * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#messages-on-the-stdin-router-dealer-sockets).
-   * In v7.0.0, the `parent_header` argument will become mandatory.
    */
   sendInputReply(
     content: KernelMessage.IInputReplyMsg['content'],
-    parent_header?: KernelMessage.IInputReplyMsg['parent_header']
+    parent_header: KernelMessage.IInputReplyMsg['parent_header']
   ): void;
 
   /**
@@ -522,7 +518,7 @@ export interface IKernelConnection extends IObservableDisposable {
    *
    * #### Notes
    * Uses the [Jupyter Notebook
-   * API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels).
+   * API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).
    *
    * On a valid response, closes the websocket, disposes of the kernel
    * object, and fulfills the promise.
@@ -619,7 +615,7 @@ export interface IManager extends IBaseManager {
    *
    * @returns A new iterator over the running kernels.
    */
-  running(): IIterator<IModel>;
+  running(): IterableIterator<IModel>;
 
   /**
    * Force a refresh of the running kernels.
@@ -782,7 +778,7 @@ export interface IFuture<
    */
   sendInputReply(
     content: KernelMessage.IInputReplyMsg['content'],
-    parent_header?: KernelMessage.IInputReplyMsg['parent_header']
+    parent_header: KernelMessage.IInputReplyMsg['parent_header']
   ): void;
 }
 
diff --git a/packages/services/src/kernel/manager.ts b/packages/services/src/kernel/manager.ts
index d131d9cb417c..870805e91c50 100644
--- a/packages/services/src/kernel/manager.ts
+++ b/packages/services/src/kernel/manager.ts
@@ -1,10 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { every, IIterator, iter } from '@lumino/algorithm';
 import { Poll } from '@lumino/polling';
 import { ISignal, Signal } from '@lumino/signaling';
-
 import { ServerConnection } from '..';
 import * as Kernel from './kernel';
 import { BaseManager } from '../basemanager';
@@ -140,8 +138,8 @@ export class KernelManager extends BaseManager implements Kernel.IManager {
    *
    * @returns A new iterator over the running kernels.
    */
-  running(): IIterator<Kernel.IModel> {
-    return iter([...this._models.values()]);
+  running(): IterableIterator<Kernel.IModel> {
+    return this._models.values();
   }
 
   /**
@@ -258,12 +256,19 @@ export class KernelManager extends BaseManager implements Kernel.IManager {
 
     if (
       this._models.size === models.length &&
-      every(models, x => {
-        const existing = this._models.get(x.id);
+      models.every(model => {
+        const existing = this._models.get(model.id);
         if (!existing) {
           return false;
         }
-        return existing.name === x.name;
+        return (
+          existing.connections === model.connections &&
+          existing.execution_state === model.execution_state &&
+          existing.last_activity === model.last_activity &&
+          existing.name === model.name &&
+          existing.reason === model.reason &&
+          existing.traceback === model.traceback
+        );
       })
     ) {
       // Identical models list (presuming models does not contain duplicate
@@ -339,6 +344,76 @@ export namespace KernelManager {
     /**
      * When the manager stops polling the API. Defaults to `when-hidden`.
      */
-    standby?: Poll.Standby;
+    standby?: Poll.Standby | (() => boolean | Poll.Standby);
+  }
+
+  /**
+   * A no-op kernel manager to be used when starting kernels.
+   */
+  export class NoopManager extends KernelManager {
+    /**
+     * Whether the manager is active.
+     */
+    get isActive(): boolean {
+      return false;
+    }
+
+    /**
+     * Used for testing.
+     */
+    get parentReady(): Promise<void> {
+      return super.ready;
+    }
+
+    /**
+     * Start a new kernel - throws an error since it is not supported.
+     */
+    async startNew(
+      createOptions: IKernelOptions = {},
+      connectOptions: Omit<
+        Kernel.IKernelConnection.IOptions,
+        'model' | 'serverSettings'
+      > = {}
+    ): Promise<Kernel.IKernelConnection> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Kernel Manager')
+      );
+    }
+
+    /**
+     * Connect to an existing kernel - throws an error since it is not supported.
+     */
+    connectTo(
+      options: Omit<Kernel.IKernelConnection.IOptions, 'serverSettings'>
+    ): Kernel.IKernelConnection {
+      throw new Error('Not implemented in no-op Kernel Manager');
+    }
+
+    /**
+     * Shut down a kernel by id - throws an error since it is not supported.
+     */
+    async shutdown(id: string): Promise<void> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Kernel Manager')
+      );
+    }
+
+    /**
+     * A promise that fulfills when the manager is ready (never).
+     */
+    get ready(): Promise<void> {
+      return this.parentReady.then(() => this._readyPromise);
+    }
+
+    /**
+     * Execute a request to the server to poll running kernels and update state.
+     */
+    protected async requestRunning(): Promise<void> {
+      return Promise.resolve();
+    }
+
+    private _readyPromise = new Promise<void>(() => {
+      /* no-op */
+    });
   }
 }
diff --git a/packages/services/src/kernel/messages.ts b/packages/services/src/kernel/messages.ts
index 48f9325d4b94..d83384d7c321 100644
--- a/packages/services/src/kernel/messages.ts
+++ b/packages/services/src/kernel/messages.ts
@@ -299,7 +299,7 @@ export interface IMessage<MSGTYPE extends MessageType = MessageType> {
   /**
    * The parent message
    */
-  parent_header: IHeader | {};
+  parent_header: IHeader | Record<string, never>;
 }
 
 /**
@@ -740,7 +740,7 @@ type ReplyContent<T> = T | IReplyErrorContent | IReplyAbortContent;
  * See [Messaging in Jupyter](https://jupyter-client.readthedocs.io/en/latest/messaging.html#kernel-info).
  */
 export interface IInfoRequestMsg extends IShellMessage<'kernel_info_request'> {
-  content: {};
+  content: Record<string, never>;
 }
 
 /**
@@ -1255,3 +1255,14 @@ export interface IInputReplyMsg extends IStdinMessage<'input_reply'> {
 export function isInputReplyMsg(msg: IMessage): msg is IInputReplyMsg {
   return msg.header.msg_type === 'input_reply';
 }
+
+// ///////////////////////////////////////////////
+// Message (de)serialization
+// ///////////////////////////////////////////////
+
+/**
+ * The list of supported kernel wire protocols over websocket.
+ */
+export enum supportedKernelWebSocketProtocols {
+  v1KernelWebsocketJupyterOrg = 'v1.kernel.websocket.jupyter.org'
+}
diff --git a/packages/services/src/kernel/restapi.ts b/packages/services/src/kernel/restapi.ts
index c909cbf1bf11..01920fe94aa0 100644
--- a/packages/services/src/kernel/restapi.ts
+++ b/packages/services/src/kernel/restapi.ts
@@ -9,7 +9,7 @@ import { validateModel, validateModels } from './validate';
  * The kernel model provided by the server.
  *
  * #### Notes
- * See the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels).
+ * See the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels).
  */
 export interface IModel {
   /**
@@ -62,7 +62,7 @@ export const KERNEL_SERVICE_URL = 'api/kernels';
  * @returns A promise that resolves with the list of running kernels.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response and rejected otherwise.
  */
@@ -88,7 +88,7 @@ export async function listRunning(
  * @returns A promise that resolves with a kernel connection object.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response and rejected otherwise.
  */
@@ -120,7 +120,7 @@ export type IKernelOptions = Partial<Pick<IModel, 'name'>>;
  * Restart a kernel.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response (and thus after a restart) and rejected otherwise.
  */
@@ -149,7 +149,7 @@ export async function restartKernel(
  * Interrupt a kernel.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response and rejected otherwise.
  */
@@ -182,7 +182,7 @@ export async function interruptKernel(
  *
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response and rejected otherwise.
  */
@@ -210,7 +210,7 @@ export async function shutdownKernel(
  * Get a full kernel model from the server by kernel id string.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernels) and validates the response model.
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernels) and validates the response model.
  *
  * The promise is fulfilled on a valid response and rejected otherwise.
  */
diff --git a/packages/services/src/kernel/serialize.ts b/packages/services/src/kernel/serialize.ts
index aaf95699860f..bf9ef2ca0acf 100644
--- a/packages/services/src/kernel/serialize.ts
+++ b/packages/services/src/kernel/serialize.ts
@@ -4,107 +4,280 @@
 import * as KernelMessage from './messages';
 
 /**
- * Deserialize and return the unpacked message.
- *
- * #### Notes
- * Handles JSON blob strings and binary messages.
+ * Serialize a kernel message for transport.
  */
-export function deserialize(
-  data: ArrayBuffer | string
-): KernelMessage.IMessage {
-  let value: KernelMessage.IMessage;
-  if (typeof data === 'string') {
-    value = JSON.parse(data);
-  } else {
-    value = deserializeBinary(data);
+export function serialize(
+  msg: KernelMessage.IMessage,
+  protocol: string = ''
+): string | ArrayBuffer {
+  switch (protocol) {
+    case KernelMessage.supportedKernelWebSocketProtocols
+      .v1KernelWebsocketJupyterOrg:
+      return Private.serializeV1KernelWebsocketJupyterOrg(msg);
+    default:
+      return Private.serializeDefault(msg);
   }
-  return value;
 }
 
 /**
- * Serialize a kernel message for transport.
- *
- * #### Notes
- * If there is binary content, an `ArrayBuffer` is returned,
- * otherwise the message is converted to a JSON string.
+ * Deserialize and return the unpacked message.
  */
-export function serialize(msg: KernelMessage.IMessage): string | ArrayBuffer {
-  let value: string | ArrayBuffer;
-  if (msg.buffers?.length) {
-    value = serializeBinary(msg);
-  } else {
-    value = JSON.stringify(msg);
+export function deserialize(
+  data: ArrayBuffer,
+  protocol: string = ''
+): KernelMessage.IMessage {
+  switch (protocol) {
+    case KernelMessage.supportedKernelWebSocketProtocols
+      .v1KernelWebsocketJupyterOrg:
+      return Private.deserializeV1KernelWebsocketJupyterOrg(data);
+    default:
+      return Private.deserializeDefault(data);
   }
-  return value;
 }
 
-/**
- * Deserialize a binary message to a Kernel Message.
- */
-function deserializeBinary(buf: ArrayBuffer): KernelMessage.IMessage {
-  const data = new DataView(buf);
-  // read the header: 1 + nbufs 32b integers
-  const nbufs = data.getUint32(0);
-  const offsets: number[] = [];
-  if (nbufs < 2) {
-    throw new Error('Invalid incoming Kernel Message');
+namespace Private {
+  /**
+   * Deserialize and return the unpacked message.
+   * Protocol `v1.kernel.websocket.jupyter.org`
+   */
+  export function deserializeV1KernelWebsocketJupyterOrg(
+    binMsg: ArrayBuffer
+  ): KernelMessage.IMessage {
+    let msg: KernelMessage.IMessage;
+    const data = new DataView(binMsg);
+    const offsetNumber: number = Number(
+      data.getBigUint64(0, true /* littleEndian */)
+    );
+    let offsets: number[] = [];
+    for (let i = 0; i < offsetNumber; i++) {
+      // WARNING: we cast our 64-bit unsigned int to a number!
+      // so offsets cannot index up to 2**64 bytes
+      offsets.push(
+        Number(data.getBigUint64(8 * (i + 1), true /* littleEndian */))
+      );
+    }
+    const decoder = new TextDecoder('utf8');
+    const channel = decoder.decode(
+      binMsg.slice(offsets[0], offsets[1])
+    ) as KernelMessage.Channel;
+    const header = JSON.parse(
+      decoder.decode(binMsg.slice(offsets[1], offsets[2]))
+    );
+    const parent_header = JSON.parse(
+      decoder.decode(binMsg.slice(offsets[2], offsets[3]))
+    );
+    const metadata = JSON.parse(
+      decoder.decode(binMsg.slice(offsets[3], offsets[4]))
+    );
+    const content = JSON.parse(
+      decoder.decode(binMsg.slice(offsets[4], offsets[5]))
+    );
+    let buffers = [];
+    for (let i = 5; i < offsets.length - 1; i++) {
+      buffers.push(new DataView(binMsg.slice(offsets[i], offsets[i + 1])));
+    }
+    msg = {
+      channel,
+      header,
+      parent_header,
+      metadata,
+      content,
+      buffers
+    };
+    return msg;
   }
-  for (let i = 1; i <= nbufs; i++) {
-    offsets.push(data.getUint32(i * 4));
-  }
-  const jsonBytes = new Uint8Array(buf.slice(offsets[0], offsets[1]));
-  const msg = JSON.parse(new TextDecoder('utf8').decode(jsonBytes));
-  // the remaining chunks are stored as DataViews in msg.buffers
-  msg.buffers = [];
-  for (let i = 1; i < nbufs; i++) {
-    const start = offsets[i];
-    const stop = offsets[i + 1] || buf.byteLength;
-    msg.buffers.push(new DataView(buf.slice(start, stop)));
-  }
-  return msg;
-}
 
-/**
- * Implement the binary serialization protocol.
- *
- * Serialize Kernel message to ArrayBuffer.
- */
-function serializeBinary(msg: KernelMessage.IMessage): ArrayBuffer {
-  const offsets: number[] = [];
-  const buffers: ArrayBuffer[] = [];
-  const encoder = new TextEncoder();
-  let origBuffers: (ArrayBuffer | ArrayBufferView)[] = [];
-  if (msg.buffers !== undefined) {
-    origBuffers = msg.buffers;
-    delete msg['buffers'];
+  /**
+   * Serialize a kernel message for transport.
+   * Protocol `v1.kernel.websocket.jupyter.org`
+   */
+  export function serializeV1KernelWebsocketJupyterOrg(
+    msg: KernelMessage.IMessage
+  ): ArrayBuffer {
+    const header = JSON.stringify(msg.header);
+    const parentHeader =
+      msg.parent_header == null ? '{}' : JSON.stringify(msg.parent_header);
+    const metadata = JSON.stringify(msg.metadata);
+    const content = JSON.stringify(msg.content);
+    const buffers: (ArrayBuffer | ArrayBufferView)[] =
+      msg.buffers !== undefined ? msg.buffers : [];
+    const offsetNumber: number = 1 + 4 + buffers.length + 1;
+    let offsets: number[] = [];
+    offsets.push(8 * (1 + offsetNumber));
+    offsets.push(msg.channel.length + offsets[offsets.length - 1]);
+    const encoder = new TextEncoder();
+    const channelEncoded = encoder.encode(msg.channel);
+    const headerEncoded = encoder.encode(header);
+    const parentHeaderEncoded = encoder.encode(parentHeader);
+    const metadataEncoded = encoder.encode(metadata);
+    const contentEncoded = encoder.encode(content);
+    const binMsgNoBuff = new Uint8Array(
+      channelEncoded.length +
+        headerEncoded.length +
+        parentHeaderEncoded.length +
+        metadataEncoded.length +
+        contentEncoded.length
+    );
+    binMsgNoBuff.set(channelEncoded);
+    binMsgNoBuff.set(headerEncoded, channelEncoded.length);
+    binMsgNoBuff.set(
+      parentHeaderEncoded,
+      channelEncoded.length + headerEncoded.length
+    );
+    binMsgNoBuff.set(
+      metadataEncoded,
+      channelEncoded.length + headerEncoded.length + parentHeaderEncoded.length
+    );
+    binMsgNoBuff.set(
+      contentEncoded,
+      channelEncoded.length +
+        headerEncoded.length +
+        parentHeaderEncoded.length +
+        metadataEncoded.length
+    );
+    for (let length of [
+      headerEncoded.length,
+      parentHeaderEncoded.length,
+      metadataEncoded.length,
+      contentEncoded.length
+    ]) {
+      offsets.push(length + offsets[offsets.length - 1]);
+    }
+    let buffersByteLength = 0;
+    for (let buffer of buffers) {
+      let length = buffer.byteLength;
+      offsets.push(length + offsets[offsets.length - 1]);
+      buffersByteLength += length;
+    }
+    const binMsg = new Uint8Array(
+      8 * (1 + offsetNumber) + binMsgNoBuff.byteLength + buffersByteLength
+    );
+    const word = new ArrayBuffer(8);
+    const data = new DataView(word);
+    data.setBigUint64(0, BigInt(offsetNumber), true /* littleEndian */);
+    binMsg.set(new Uint8Array(word), 0);
+    for (let i = 0; i < offsets.length; i++) {
+      data.setBigUint64(0, BigInt(offsets[i]), true /* littleEndian */);
+      binMsg.set(new Uint8Array(word), 8 * (i + 1));
+    }
+    binMsg.set(binMsgNoBuff, offsets[0]);
+    for (let i = 0; i < buffers.length; i++) {
+      const buffer = buffers[i];
+      binMsg.set(
+        new Uint8Array(ArrayBuffer.isView(buffer) ? buffer.buffer : buffer),
+        offsets[5 + i]
+      );
+    }
+    return binMsg.buffer;
   }
-  const jsonUtf8 = encoder.encode(JSON.stringify(msg));
-  buffers.push(jsonUtf8.buffer);
-  for (let i = 0; i < origBuffers.length; i++) {
-    // msg.buffers elements could be either views or ArrayBuffers
-    // buffers elements are ArrayBuffers
-    const b: any = origBuffers[i];
-    buffers.push(ArrayBuffer.isView(b) ? b.buffer : b);
+
+  /**
+   * Deserialize and return the unpacked message.
+   * Default protocol
+   *
+   * #### Notes
+   * Handles JSON blob strings and binary messages.
+   */
+  export function deserializeDefault(
+    data: ArrayBuffer | string
+  ): KernelMessage.IMessage {
+    let value: KernelMessage.IMessage;
+    if (typeof data === 'string') {
+      value = JSON.parse(data);
+    } else {
+      value = deserializeBinary(data);
+    }
+    return value;
   }
-  const nbufs = buffers.length;
-  offsets.push(4 * (nbufs + 1));
-  for (let i = 0; i + 1 < buffers.length; i++) {
-    offsets.push(offsets[offsets.length - 1] + buffers[i].byteLength);
+
+  /**
+   * Serialize a kernel message for transport.
+   * Default protocol
+   *
+   * #### Notes
+   * If there is binary content, an `ArrayBuffer` is returned,
+   * otherwise the message is converted to a JSON string.
+   */
+  export function serializeDefault(
+    msg: KernelMessage.IMessage
+  ): string | ArrayBuffer {
+    let value: string | ArrayBuffer;
+    if (msg.buffers?.length) {
+      value = serializeBinary(msg);
+    } else {
+      value = JSON.stringify(msg);
+    }
+    return value;
   }
-  const msgBuf = new Uint8Array(
-    offsets[offsets.length - 1] + buffers[buffers.length - 1].byteLength
-  );
-  // use DataView.setUint32 for network byte-order
-  const view = new DataView(msgBuf.buffer);
-  // write nbufs to first 4 bytes
-  view.setUint32(0, nbufs);
-  // write offsets to next 4 * nbufs bytes
-  for (let i = 0; i < offsets.length; i++) {
-    view.setUint32(4 * (i + 1), offsets[i]);
+
+  /**
+   * Deserialize a binary message to a Kernel Message.
+   */
+  function deserializeBinary(buf: ArrayBuffer): KernelMessage.IMessage {
+    const data = new DataView(buf);
+    // read the header: 1 + nbufs 32b integers
+    const nbufs = data.getUint32(0);
+    const offsets: number[] = [];
+    if (nbufs < 2) {
+      throw new Error('Invalid incoming Kernel Message');
+    }
+    for (let i = 1; i <= nbufs; i++) {
+      offsets.push(data.getUint32(i * 4));
+    }
+    const jsonBytes = new Uint8Array(buf.slice(offsets[0], offsets[1]));
+    const msg = JSON.parse(new TextDecoder('utf8').decode(jsonBytes));
+    // the remaining chunks are stored as DataViews in msg.buffers
+    msg.buffers = [];
+    for (let i = 1; i < nbufs; i++) {
+      const start = offsets[i];
+      const stop = offsets[i + 1] || buf.byteLength;
+      msg.buffers.push(new DataView(buf.slice(start, stop)));
+    }
+    return msg;
   }
-  // write all the buffers at their respective offsets
-  for (let i = 0; i < buffers.length; i++) {
-    msgBuf.set(new Uint8Array(buffers[i]), offsets[i]);
+
+  /**
+   * Implement the binary serialization protocol.
+   *
+   * Serialize Kernel message to ArrayBuffer.
+   */
+  function serializeBinary(msg: KernelMessage.IMessage): ArrayBuffer {
+    const offsets: number[] = [];
+    const buffers: ArrayBuffer[] = [];
+    const encoder = new TextEncoder();
+    let origBuffers: (ArrayBuffer | ArrayBufferView)[] = [];
+    if (msg.buffers !== undefined) {
+      origBuffers = msg.buffers;
+      delete msg['buffers'];
+    }
+    const jsonUtf8 = encoder.encode(JSON.stringify(msg));
+    buffers.push(jsonUtf8.buffer);
+    for (let i = 0; i < origBuffers.length; i++) {
+      // msg.buffers elements could be either views or ArrayBuffers
+      // buffers elements are ArrayBuffers
+      const b: any = origBuffers[i];
+      buffers.push(ArrayBuffer.isView(b) ? b.buffer : b);
+    }
+    const nbufs = buffers.length;
+    offsets.push(4 * (nbufs + 1));
+    for (let i = 0; i + 1 < buffers.length; i++) {
+      offsets.push(offsets[offsets.length - 1] + buffers[i].byteLength);
+    }
+    const msgBuf = new Uint8Array(
+      offsets[offsets.length - 1] + buffers[buffers.length - 1].byteLength
+    );
+    // use DataView.setUint32 for network byte-order
+    const view = new DataView(msgBuf.buffer);
+    // write nbufs to first 4 bytes
+    view.setUint32(0, nbufs);
+    // write offsets to next 4 * nbufs bytes
+    for (let i = 0; i < offsets.length; i++) {
+      view.setUint32(4 * (i + 1), offsets[i]);
+    }
+    // write all the buffers at their respective offsets
+    for (let i = 0; i < buffers.length; i++) {
+      msgBuf.set(new Uint8Array(buffers[i]), offsets[i]);
+    }
+    return msgBuf.buffer;
   }
-  return msgBuf.buffer;
 }
diff --git a/packages/services/src/kernelspec/manager.ts b/packages/services/src/kernelspec/manager.ts
index 717a771f2bf6..93d2325e4186 100644
--- a/packages/services/src/kernelspec/manager.ts
+++ b/packages/services/src/kernelspec/manager.ts
@@ -14,7 +14,8 @@ import { BaseManager } from '../basemanager';
  */
 export class KernelSpecManager
   extends BaseManager
-  implements KernelSpec.IManager {
+  implements KernelSpec.IManager
+{
   /**
    * Construct a new kernel spec manager.
    *
@@ -147,6 +148,6 @@ export namespace KernelSpecManager {
     /**
      * When the manager stops polling the API. Defaults to `when-hidden`.
      */
-    standby?: Poll.Standby;
+    standby?: Poll.Standby | (() => boolean | Poll.Standby);
   }
 }
diff --git a/packages/services/src/kernelspec/restapi.ts b/packages/services/src/kernelspec/restapi.ts
index 4d744fcac326..169190f6e5ed 100644
--- a/packages/services/src/kernelspec/restapi.ts
+++ b/packages/services/src/kernelspec/restapi.ts
@@ -21,7 +21,7 @@ const KERNELSPEC_SERVICE_URL = 'api/kernelspecs';
  * @returns A promise that resolves with the kernel specs.
  *
  * #### Notes
- * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernelspecs).
+ * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernelspecs).
  */
 export async function getSpecs(
   settings: ServerConnection.ISettings = ServerConnection.makeSettings()
@@ -83,7 +83,7 @@ export interface ISpecModel extends PartialJSONObject {
  * The available kernelSpec models.
  *
  * #### Notes
- * See the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/kernelspecs).
+ * See the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/kernelspecs).
  */
 export interface ISpecModels extends PartialJSONObject {
   /**
diff --git a/packages/services/src/kernelspec/validate.ts b/packages/services/src/kernelspec/validate.ts
index f658b2cdee73..f7b4115b3a14 100644
--- a/packages/services/src/kernelspec/validate.ts
+++ b/packages/services/src/kernelspec/validate.ts
@@ -7,6 +7,7 @@ import { validateProperty } from '../validate';
 /**
  * Validate a server kernelspec model to a client side model.
  */
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function validateSpecModel(data: any): ISpecModel {
   const spec = data.spec;
   if (!spec) {
@@ -43,6 +44,7 @@ export function validateSpecModel(data: any): ISpecModel {
 /**
  * Validate a `Kernel.ISpecModels` object.
  */
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function validateSpecModels(data: any): ISpecModels {
   if (!data.hasOwnProperty('kernelspecs')) {
     throw new Error('No kernelspecs found');
diff --git a/packages/services/src/manager.ts b/packages/services/src/manager.ts
index 9eaece45b93f..183dad9088f0 100644
--- a/packages/services/src/manager.ts
+++ b/packages/services/src/manager.ts
@@ -9,24 +9,24 @@ import { ISignal, Signal } from '@lumino/signaling';
 
 import { Builder, BuildManager } from './builder';
 
-import { NbConvert, NbConvertManager } from './nbconvert';
-
 import { Contents, ContentsManager } from './contents';
 
 import { Event, EventManager } from './event';
 
-import { KernelManager } from './kernel';
+import { Kernel, KernelManager } from './kernel';
 
 import { KernelSpec, KernelSpecManager } from './kernelspec';
 
+import { NbConvert, NbConvertManager } from './nbconvert';
+
+import { ServerConnection } from './serverconnection';
+
 import { Session, SessionManager } from './session';
 
 import { Setting, SettingManager } from './setting';
 
 import { Terminal, TerminalManager } from './terminal';
 
-import { ServerConnection } from './serverconnection';
-
 import { User, UserManager } from './user';
 
 import { Workspace, WorkspaceManager } from './workspace';
@@ -38,28 +38,30 @@ export class ServiceManager implements ServiceManager.IManager {
   /**
    * Construct a new services provider.
    */
-  constructor(options: ServiceManager.IOptions = {}) {
+  constructor(options: Partial<ServiceManager.IOptions> = {}) {
     const defaultDrive = options.defaultDrive;
     const serverSettings =
       options.serverSettings ?? ServerConnection.makeSettings();
     const standby = options.standby ?? 'when-hidden';
     const normalized = { defaultDrive, serverSettings, standby };
 
-    const kernelManager = new KernelManager(normalized);
     this.serverSettings = serverSettings;
-    this.contents = new ContentsManager(normalized);
-    this.events = new EventManager(normalized);
-    this.sessions = new SessionManager({
-      ...normalized,
-      kernelManager: kernelManager
-    });
-    this.settings = new SettingManager(normalized);
-    this.terminals = new TerminalManager(normalized);
-    this.builder = new BuildManager(normalized);
-    this.workspaces = new WorkspaceManager(normalized);
-    this.nbconvert = new NbConvertManager(normalized);
-    this.kernelspecs = new KernelSpecManager(normalized);
-    this.user = new UserManager(normalized);
+    this.contents = options.contents || new ContentsManager(normalized);
+    this.events = options.events || new EventManager(normalized);
+    this.kernels = options.kernels || new KernelManager(normalized);
+    this.sessions =
+      options.sessions ||
+      new SessionManager({
+        ...normalized,
+        kernelManager: this.kernels
+      });
+    this.settings = options.settings || new SettingManager(normalized);
+    this.terminals = options.terminals || new TerminalManager(normalized);
+    this.builder = options.builder || new BuildManager(normalized);
+    this.workspaces = options.workspaces || new WorkspaceManager(normalized);
+    this.nbconvert = options.nbconvert || new NbConvertManager(normalized);
+    this.kernelspecs = options.kernelspecs || new KernelSpecManager(normalized);
+    this.user = options.user || new UserManager(normalized);
 
     // Proxy all connection failures from the individual service managers.
     this.kernelspecs.connectionFailure.connect(this._onConnectionFailure, this);
@@ -115,27 +117,32 @@ export class ServiceManager implements ServiceManager.IManager {
   /**
    * Get the session manager instance.
    */
-  readonly sessions: SessionManager;
+  readonly sessions: Session.IManager;
 
   /**
-   * Get the session manager instance.
+   * Get the kernel manager instance.
    */
-  readonly kernelspecs: KernelSpecManager;
+  readonly kernels: Kernel.IManager;
+
+  /**
+   * Get the kernelspec manager instance.
+   */
+  readonly kernelspecs: KernelSpec.IManager;
 
   /**
    * Get the setting manager instance.
    */
-  readonly settings: SettingManager;
+  readonly settings: Setting.IManager;
 
   /**
    * The builder for the manager.
    */
-  readonly builder: BuildManager;
+  readonly builder: Builder.IManager;
 
   /**
    * Get the contents manager instance.
    */
-  readonly contents: ContentsManager;
+  readonly contents: Contents.IManager;
 
   /**
    * The event manager instance.
@@ -145,7 +152,7 @@ export class ServiceManager implements ServiceManager.IManager {
   /**
    * Get the terminal manager instance.
    */
-  readonly terminals: TerminalManager;
+  readonly terminals: Terminal.IManager;
 
   /**
    * Get the user manager instance.
@@ -155,12 +162,12 @@ export class ServiceManager implements ServiceManager.IManager {
   /**
    * Get the workspace manager instance.
    */
-  readonly workspaces: WorkspaceManager;
+  readonly workspaces: Workspace.IManager;
 
   /**
    * Get the nbconvert manager instance.
    */
-  readonly nbconvert: NbConvertManager;
+  readonly nbconvert: NbConvert.IManager;
 
   /**
    * Test whether the manager is ready.
@@ -193,9 +200,46 @@ export namespace ServiceManager {
   /**
    * A service manager interface.
    */
-  export interface IManager extends IDisposable {
+  export interface IManager extends IDisposable, IManagers {
+    /**
+     * Test whether the manager is ready.
+     */
+    readonly isReady: boolean;
+
+    /**
+     * A promise that fulfills when the manager is initially ready.
+     */
+    readonly ready: Promise<void>;
+
+    /**
+     * A signal emitted when there is a connection failure with the server.
+     */
+    readonly connectionFailure: ISignal<IManager, Error>;
+  }
+
+  /**
+   * The options used to create a service manager.
+   */
+  export interface IOptions extends IManagers {
+    /**
+     * The default drive for the contents manager.
+     */
+    readonly defaultDrive: Contents.IDrive;
+
+    /**
+     * When the manager stops polling the API. Defaults to `when-hidden`.
+     */
+    standby: Poll.Standby | (() => boolean | Poll.Standby);
+  }
+
+  /**
+   * The managers provided by the service manager.
+   */
+  interface IManagers {
     /**
      * The builder for the manager.
+     *
+     * @deprecated will be removed in JupyterLab v5
      */
     readonly builder: Builder.IManager;
 
@@ -206,16 +250,8 @@ export namespace ServiceManager {
 
     /**
      * The events service manager.
-     *
-     * #### Notes
-     * The events manager is optional until JupyterLab 4.
      */
-    readonly events?: Event.IManager;
-
-    /**
-     * Test whether the manager is ready.
-     */
-    readonly isReady: boolean;
+    readonly events: Event.IManager;
 
     /**
      * A promise that fulfills when the manager is initially ready.
@@ -233,7 +269,12 @@ export namespace ServiceManager {
     readonly sessions: Session.IManager;
 
     /**
-     * The session manager for the manager.
+     * The kernel manager of the manager.
+     */
+    readonly kernels: Kernel.IManager;
+
+    /**
+     * The kernelspec manager for the manager.
      */
     readonly kernelspecs: KernelSpec.IManager;
 
@@ -250,7 +291,7 @@ export namespace ServiceManager {
     /**
      * The user manager for the manager.
      */
-    readonly user?: User.IManager;
+    readonly user: User.IManager;
 
     /**
      * The workspace manager for the manager.
@@ -261,30 +302,5 @@ export namespace ServiceManager {
      * The nbconvert manager for the manager.
      */
     readonly nbconvert: NbConvert.IManager;
-
-    /**
-     * A signal emitted when there is a connection failure with the server.
-     */
-    readonly connectionFailure: ISignal<IManager, Error>;
-  }
-
-  /**
-   * The options used to create a service manager.
-   */
-  export interface IOptions {
-    /**
-     * The server settings of the manager.
-     */
-    readonly serverSettings?: ServerConnection.ISettings;
-
-    /**
-     * The default drive for the contents manager.
-     */
-    readonly defaultDrive?: Contents.IDrive;
-
-    /**
-     * When the manager stops polling the API. Defaults to `when-hidden`.
-     */
-    standby?: Poll.Standby;
   }
 }
diff --git a/packages/services/src/nbconvert/index.ts b/packages/services/src/nbconvert/index.ts
index 3e0e2c403f35..1bb6f86522ad 100644
--- a/packages/services/src/nbconvert/index.ts
+++ b/packages/services/src/nbconvert/index.ts
@@ -5,6 +5,8 @@ import { URLExt } from '@jupyterlab/coreutils';
 
 import { ServerConnection } from '../serverconnection';
 
+import { PromiseDelegate } from '@lumino/coreutils';
+
 /**
  * The url for the lab nbconvert service.
  */
@@ -28,9 +30,11 @@ export class NbConvertManager {
   readonly serverSettings: ServerConnection.ISettings;
 
   /**
-   * Get whether the application should be built.
+   * Fetch and cache the export formats from the expensive nbconvert handler.
    */
-  async getExportFormats(): Promise<NbConvertManager.IExportFormats> {
+  protected async fetchExportFormats(): Promise<NbConvertManager.IExportFormats> {
+    this._requestingFormats = new PromiseDelegate();
+    this._exportFormats = null;
     const base = this.serverSettings.baseUrl;
     const url = URLExt.join(base, NBCONVERT_SETTINGS_URL);
     const { serverSettings } = this;
@@ -50,8 +54,30 @@ export class NbConvertManager {
       const mimeType: string = data[key].output_mimetype;
       exportList[key] = { output_mimetype: mimeType };
     });
+    this._exportFormats = exportList;
+    this._requestingFormats.resolve(exportList);
     return exportList;
   }
+
+  /**
+   * Get the list of export formats, preferring pre-cached ones.
+   */
+  async getExportFormats(
+    force: boolean = true
+  ): Promise<NbConvertManager.IExportFormats> {
+    if (this._requestingFormats) {
+      return this._requestingFormats.promise;
+    }
+
+    if (force || !this._exportFormats) {
+      return await this.fetchExportFormats();
+    }
+
+    return this._exportFormats;
+  }
+
+  protected _requestingFormats: PromiseDelegate<NbConvertManager.IExportFormats> | null;
+  protected _exportFormats: NbConvertManager.IExportFormats | null = null;
 }
 
 /**
diff --git a/packages/services/src/serverconnection.ts b/packages/services/src/serverconnection.ts
index 8baeffac7903..f7cdfced3a98 100644
--- a/packages/services/src/serverconnection.ts
+++ b/packages/services/src/serverconnection.ts
@@ -3,30 +3,13 @@
 
 import { PageConfig, URLExt } from '@jupyterlab/coreutils';
 
-/**
- * Handle the default `fetch` and `WebSocket` providers.
- */
-declare let global: any;
-
-let FETCH: (input: RequestInfo, init?: RequestInit) => Promise<Response>;
-let HEADERS: typeof Headers;
-let REQUEST: typeof Request;
 let WEBSOCKET: typeof WebSocket;
 
 if (typeof window === 'undefined') {
   // Mangle the require statements so it does not get picked up in the
   // browser assets.
-  /* tslint:disable */
-  const fetchMod = require('node-fetch');
-  FETCH = global.fetch ?? fetchMod;
-  REQUEST = global.Request ?? fetchMod.Request;
-  HEADERS = global.Headers ?? fetchMod.Headers;
   WEBSOCKET = require('ws');
-  /* tslint:enable */
 } else {
-  FETCH = fetch;
-  REQUEST = Request;
-  HEADERS = Headers;
   WEBSOCKET = WebSocket;
 }
 
@@ -113,7 +96,7 @@ export namespace ServerConnection {
    *
    * @returns The full settings object.
    */
-  export function makeSettings(options?: Partial<ISettings>) {
+  export function makeSettings(options?: Partial<ISettings>): ISettings {
     return Private.makeSettings(options);
   }
 
@@ -244,9 +227,9 @@ namespace Private {
 
     return {
       init: { cache: 'no-store', credentials: 'same-origin' },
-      fetch: FETCH,
-      Headers: HEADERS,
-      Request: REQUEST,
+      fetch,
+      Headers,
+      Request,
       WebSocket: WEBSOCKET,
       token: PageConfig.getToken(),
       appUrl: PageConfig.getOption('appUrl'),
diff --git a/packages/services/src/session/default.ts b/packages/services/src/session/default.ts
index a40278eecf5e..448ed71b42b1 100644
--- a/packages/services/src/session/default.ts
+++ b/packages/services/src/session/default.ts
@@ -267,7 +267,7 @@ export class SessionConnection implements Session.ISessionConnection {
   /**
    * Change the kernel.
    *
-   * @params options - The name or id of the new kernel.
+   * @param options - The name or id of the new kernel.
    *
    * #### Notes
    * This shuts down the existing kernel and creates a new kernel,
@@ -290,7 +290,7 @@ export class SessionConnection implements Session.ISessionConnection {
    * @returns - The promise fulfilled on a valid response from the server.
    *
    * #### Notes
-   * Uses the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/sessions), and validates the response.
+   * Uses the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/sessions), and validates the response.
    * Disposes of the session and emits a [sessionDied] signal on success.
    */
   async shutdown(): Promise<void> {
@@ -334,7 +334,7 @@ export class SessionConnection implements Session.ISessionConnection {
   protected onKernelStatus(
     sender: Kernel.IKernelConnection,
     state: Kernel.Status
-  ) {
+  ): void {
     this._statusChanged.emit(state);
   }
 
@@ -344,7 +344,7 @@ export class SessionConnection implements Session.ISessionConnection {
   protected onKernelConnectionStatus(
     sender: Kernel.IKernelConnection,
     state: Kernel.ConnectionStatus
-  ) {
+  ): void {
     this._connectionStatusChanged.emit(state);
   }
 
@@ -361,7 +361,7 @@ export class SessionConnection implements Session.ISessionConnection {
   protected onIOPubMessage(
     sender: Kernel.IKernelConnection,
     msg: KernelMessage.IIOPubMessage
-  ) {
+  ): void {
     this._iopubMessage.emit(msg);
   }
 
@@ -371,7 +371,7 @@ export class SessionConnection implements Session.ISessionConnection {
   protected onUnhandledMessage(
     sender: Kernel.IKernelConnection,
     msg: KernelMessage.IMessage
-  ) {
+  ): void {
     this._unhandledMessage.emit(msg);
   }
 
@@ -381,7 +381,7 @@ export class SessionConnection implements Session.ISessionConnection {
   protected onAnyMessage(
     sender: Kernel.IKernelConnection,
     args: Kernel.IAnyMessageArgs
-  ) {
+  ): void {
     this._anyMessage.emit(args);
   }
 
diff --git a/packages/services/src/session/manager.ts b/packages/services/src/session/manager.ts
index 5ccfd0e06f41..d6dc5a009622 100644
--- a/packages/services/src/session/manager.ts
+++ b/packages/services/src/session/manager.ts
@@ -1,12 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { every, IIterator, iter } from '@lumino/algorithm';
 import { Poll } from '@lumino/polling';
 import { ISignal, Signal } from '@lumino/signaling';
-
 import { ServerConnection } from '../serverconnection';
-
 import * as Session from './session';
 import { BaseManager } from '../basemanager';
 import { SessionConnection } from './default';
@@ -44,7 +41,9 @@ export class SessionManager extends BaseManager implements Session.IManager {
     this._ready = (async () => {
       await this._pollModels.start();
       await this._pollModels.tick;
-      await this._kernelManager.ready;
+      if (this._kernelManager.isActive) {
+        await this._kernelManager.ready;
+      }
       this._isReady = true;
     })();
   }
@@ -126,8 +125,8 @@ export class SessionManager extends BaseManager implements Session.IManager {
    *
    * @returns A new iterator over the running sessions.
    */
-  running(): IIterator<Session.IModel> {
-    return iter([...this._models.values()]);
+  running(): IterableIterator<Session.IModel> {
+    return this._models.values();
   }
 
   /**
@@ -268,17 +267,17 @@ export class SessionManager extends BaseManager implements Session.IManager {
 
     if (
       this._models.size === models.length &&
-      every(models, x => {
-        const existing = this._models.get(x.id);
+      models.every(model => {
+        const existing = this._models.get(model.id);
         if (!existing) {
           return false;
         }
         return (
-          existing.kernel?.id === x.kernel?.id &&
-          existing.kernel?.name === x.kernel?.name &&
-          existing.name === x.name &&
-          existing.path === x.path &&
-          existing.type === x.type
+          existing.kernel?.id === model.kernel?.id &&
+          existing.kernel?.name === model.kernel?.name &&
+          existing.name === model.name &&
+          existing.path === model.path &&
+          existing.type === model.type
         );
       })
     ) {
@@ -357,11 +356,84 @@ export namespace SessionManager {
     /**
      * When the manager stops polling the API. Defaults to `when-hidden`.
      */
-    standby?: Poll.Standby;
+    standby?: Poll.Standby | (() => boolean | Poll.Standby);
 
     /**
      * Kernel Manager
      */
     kernelManager: Kernel.IManager;
   }
+
+  /**
+   * A no-op session manager to be used when starting sessions is not supported.
+   */
+  export class NoopManager extends SessionManager {
+    /**
+     * Whether the manager is active.
+     */
+    get isActive(): boolean {
+      return false;
+    }
+
+    /**
+     * Used for testing.
+     */
+    get parentReady(): Promise<void> {
+      return super.ready;
+    }
+
+    /**
+     * Start a new session - throw an error since it is not supported.
+     */
+    async startNew(
+      createOptions: Session.ISessionOptions,
+      connectOptions: Omit<
+        Session.ISessionConnection.IOptions,
+        'model' | 'connectToKernel' | 'serverSettings'
+      > = {}
+    ): Promise<Session.ISessionConnection> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Session Manager')
+      );
+    }
+
+    /*
+     * Connect to a running session - throw an error since it is not supported.
+     */
+    connectTo(
+      options: Omit<
+        Session.ISessionConnection.IOptions,
+        'connectToKernel' | 'serverSettings'
+      >
+    ): Session.ISessionConnection {
+      throw Error('Not implemented in no-op Session Manager');
+    }
+
+    /**
+     * A promise that fulfills when the manager is ready (never).
+     */
+    get ready(): Promise<void> {
+      return this.parentReady.then(() => this._readyPromise);
+    }
+
+    /**
+     * Shut down a session by id - throw an error since it is not supported.
+     */
+    async shutdown(id: string): Promise<void> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Session Manager')
+      );
+    }
+
+    /**
+     * Execute a request to the server to poll running sessions and update state.
+     */
+    protected async requestRunning(): Promise<void> {
+      return Promise.resolve();
+    }
+
+    private _readyPromise = new Promise<void>(() => {
+      /* no-op */
+    });
+  }
 }
diff --git a/packages/services/src/session/session.ts b/packages/services/src/session/session.ts
index 10d873b019d2..517894efbb2c 100644
--- a/packages/services/src/session/session.ts
+++ b/packages/services/src/session/session.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IIterator } from '@lumino/algorithm';
-
 import { IDisposable, IObservableDisposable } from '@lumino/disposable';
 
 import { ISignal } from '@lumino/signaling';
@@ -271,7 +269,7 @@ export interface IManager extends IDisposable {
    *
    * @returns A new iterator over the running sessions.
    */
-  running(): IIterator<IModel>;
+  running(): IterableIterator<IModel>;
 
   /**
    * Start a new session.
@@ -369,7 +367,7 @@ export interface IManager extends IDisposable {
  * The session model returned by the server.
  *
  * #### Notes
- * See the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/sessions).
+ * See the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/sessions).
  */
 export interface IModel {
   /**
@@ -390,7 +388,7 @@ export interface IModel {
  * parameter is not technically required, but is often assumed to be nonempty,
  * so we require it too.
  *
- * See the [Jupyter Notebook API](http://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter/notebook/master/notebook/services/api/api.yaml#!/sessions).
+ * See the [Jupyter Notebook API](https://petstore.swagger.io/?url=https://raw.githubusercontent.com/jupyter-server/jupyter_server/main/jupyter_server/services/api/api.yaml#!/sessions).
  */
 export type ISessionOptions = Pick<IModel, 'path' | 'type' | 'name'> & {
   kernel?: Partial<Pick<Kernel.IModel, 'name'>>;
diff --git a/packages/services/src/session/validate.ts b/packages/services/src/session/validate.ts
index c71483e090d4..0a8eb9888587 100644
--- a/packages/services/src/session/validate.ts
+++ b/packages/services/src/session/validate.ts
@@ -10,6 +10,7 @@ import { validateProperty } from '../validate';
 /**
  * Validate an `Session.IModel` object.
  */
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function validateModel(data: any): asserts data is Session.IModel {
   validateProperty(data, 'id', 'string');
   validateProperty(data, 'type', 'string');
@@ -22,6 +23,7 @@ export function validateModel(data: any): asserts data is Session.IModel {
 /**
  * Update model from legacy session data.
  */
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
 export function updateLegacySessionModel(data: any): void {
   if (data.path === undefined && data.notebook !== undefined) {
     data.path = data.notebook.path;
diff --git a/packages/services/src/setting/index.ts b/packages/services/src/setting/index.ts
index 146646f76e7c..7fd299fcaa86 100644
--- a/packages/services/src/setting/index.ts
+++ b/packages/services/src/setting/index.ts
@@ -68,12 +68,14 @@ export class SettingManager extends DataConnector<
    *
    * @returns A promise that resolves if successful.
    */
-  async list(): Promise<{ ids: string[]; values: ISettingRegistry.IPlugin[] }> {
+  async list(
+    query?: 'ids'
+  ): Promise<{ ids: string[]; values: ISettingRegistry.IPlugin[] }> {
     const { serverSettings } = this;
     const { baseUrl, appUrl } = serverSettings;
     const { makeRequest, ResponseError } = ServerConnection;
     const base = baseUrl + appUrl;
-    const url = Private.url(base, '');
+    const url = Private.url(base, '', query === 'ids');
     const response = await makeRequest(url, {}, serverSettings);
 
     if (response.status !== 200) {
@@ -81,12 +83,19 @@ export class SettingManager extends DataConnector<
     }
 
     const json = await response.json();
-    const values: ISettingRegistry.IPlugin[] =
-      json?.['settings']?.map((plugin: ISettingRegistry.IPlugin) => {
-        plugin.data = { composite: {}, user: {} };
-        return plugin;
-      }) ?? [];
-    const ids = values.map(plugin => plugin.id);
+    const ids =
+      json?.['settings']?.map(
+        (plugin: ISettingRegistry.IPlugin) => plugin.id
+      ) ?? [];
+
+    let values: ISettingRegistry.IPlugin[] = [];
+    if (!query) {
+      values =
+        json?.['settings']?.map((plugin: ISettingRegistry.IPlugin) => {
+          plugin.data = { composite: {}, user: {} };
+          return plugin;
+        }) ?? [];
+    }
 
     return { ids, values };
   }
@@ -148,7 +157,10 @@ namespace Private {
   /**
    * Get the url for a plugin's settings.
    */
-  export function url(base: string, id: string): string {
-    return URLExt.join(base, SERVICE_SETTINGS_URL, id);
+  export function url(base: string, id: string, idsOnly?: boolean): string {
+    const idsOnlyParam = idsOnly
+      ? URLExt.objectToQueryString({ ids_only: true })
+      : '';
+    return `${URLExt.join(base, SERVICE_SETTINGS_URL, id)}${idsOnlyParam}`;
   }
 }
diff --git a/packages/services/src/shim/ws.ts b/packages/services/src/shim/ws.ts
index 5b82f34d0df3..24e02ee4faaa 100644
--- a/packages/services/src/shim/ws.ts
+++ b/packages/services/src/shim/ws.ts
@@ -1 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 export default WebSocket;
diff --git a/packages/services/src/terminal/default.ts b/packages/services/src/terminal/default.ts
index 7d8da80bee2c..8e019e6c6230 100644
--- a/packages/services/src/terminal/default.ts
+++ b/packages/services/src/terminal/default.ts
@@ -171,7 +171,7 @@ export class TerminalConnection implements Terminal.ITerminalConnection {
   /**
    * Attempt a connection if we have not exhausted connection attempts.
    */
-  _reconnect() {
+  _reconnect(): void {
     this._errorIfDisposed();
 
     // Clear any existing reconnection attempt
@@ -402,7 +402,7 @@ namespace Private {
    * that, but doing so would cause your random numbers to follow a non-uniform
    * distribution, which may not be acceptable for your needs.
    */
-  export function getRandomIntInclusive(min: number, max: number) {
+  export function getRandomIntInclusive(min: number, max: number): number {
     min = Math.ceil(min);
     max = Math.floor(max);
     return Math.floor(Math.random() * (max - min + 1)) + min;
diff --git a/packages/services/src/terminal/manager.ts b/packages/services/src/terminal/manager.ts
index 0fdb7cb5ca80..088953234347 100644
--- a/packages/services/src/terminal/manager.ts
+++ b/packages/services/src/terminal/manager.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IIterator, iter } from '@lumino/algorithm';
-
 import { Poll } from '@lumino/polling';
 
 import { ISignal, Signal } from '@lumino/signaling';
@@ -143,8 +141,8 @@ export class TerminalManager extends BaseManager implements Terminal.IManager {
    *
    * @returns A new iterator over the running terminals.
    */
-  running(): IIterator<Terminal.IModel> {
-    return iter(this._models);
+  running(): IterableIterator<Terminal.IModel> {
+    return this._models[Symbol.iterator]();
   }
 
   /**
@@ -297,6 +295,73 @@ export namespace TerminalManager {
     /**
      * When the manager stops polling the API. Defaults to `when-hidden`.
      */
-    standby?: Poll.Standby;
+    standby?: Poll.Standby | (() => boolean | Poll.Standby);
+  }
+
+  /**
+   * A no-op terminal manager to be used when starting terminals is not supported.
+   */
+  export class NoopManager extends TerminalManager {
+    /**
+     * Whether the manager is active.
+     */
+    get isActive(): boolean {
+      return false;
+    }
+
+    /**
+     * Used for testing.
+     */
+    get parentReady(): Promise<void> {
+      return super.ready;
+    }
+
+    /**
+     * A promise that fulfills when the manager is ready (never).
+     */
+    get ready(): Promise<void> {
+      return this.parentReady.then(() => this._readyPromise);
+    }
+
+    /**
+     * Create a new terminal session - throw an error since it is not supported.
+     *
+     */
+    async startNew(
+      options?: Terminal.ITerminal.IOptions
+    ): Promise<Terminal.ITerminalConnection> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Terminal Manager')
+      );
+    }
+
+    /*
+     * Connect to a running terminal - throw an error since it is not supported.
+     */
+    connectTo(
+      options: Omit<Terminal.ITerminalConnection.IOptions, 'serverSettings'>
+    ): Terminal.ITerminalConnection {
+      throw Error('Not implemented in no-op Terminal Manager');
+    }
+
+    /**
+     * Shut down a session by id - throw an error since it is not supported.
+     */
+    async shutdown(id: string): Promise<void> {
+      return Promise.reject(
+        new Error('Not implemented in no-op Terminal Manager')
+      );
+    }
+
+    /**
+     * Execute a request to the server to poll running sessions and update state.
+     */
+    protected async requestRunning(): Promise<void> {
+      return Promise.resolve();
+    }
+
+    private _readyPromise = new Promise<void>(() => {
+      /* no-op */
+    });
   }
 }
diff --git a/packages/services/src/terminal/restapi.ts b/packages/services/src/terminal/restapi.ts
index f5979aae5e37..4b36c9bfaf45 100644
--- a/packages/services/src/terminal/restapi.ts
+++ b/packages/services/src/terminal/restapi.ts
@@ -120,7 +120,7 @@ namespace Private {
   /**
    * Throw an error if terminals are not available.
    */
-  export function errorIfNotAvailable() {
+  export function errorIfNotAvailable(): void {
     if (!isAvailable()) {
       throw new Error('Terminals Unavailable');
     }
diff --git a/packages/services/src/terminal/terminal.ts b/packages/services/src/terminal/terminal.ts
index 003d7e6c1211..5c2d5f2a4028 100644
--- a/packages/services/src/terminal/terminal.ts
+++ b/packages/services/src/terminal/terminal.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IIterator } from '@lumino/algorithm';
-
 import { JSONPrimitive } from '@lumino/coreutils';
 
 import { IObservableDisposable } from '@lumino/disposable';
@@ -153,7 +151,7 @@ export interface IManager extends IBaseManager {
    *
    * @returns A new iterator over the running terminals.
    */
-  running(): IIterator<IModel>;
+  running(): IterableIterator<IModel>;
 
   /**
    * Create a new terminal session.
diff --git a/packages/services/src/testutils.ts b/packages/services/src/testutils.ts
new file mode 100644
index 000000000000..ccd582062589
--- /dev/null
+++ b/packages/services/src/testutils.ts
@@ -0,0 +1,811 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+// We explicitly reference the jest typings since the jest.d.ts file shipped
+// with jest 26 masks the @types/jest typings
+
+/// <reference types="jest" />
+
+import { PathExt } from '@jupyterlab/coreutils';
+import { PartialJSONObject, ReadonlyJSONObject, UUID } from '@lumino/coreutils';
+import { AttachedProperty } from '@lumino/properties';
+import { ISignal, Signal } from '@lumino/signaling';
+import { BaseManager } from './basemanager';
+import { Contents, ContentsManager } from './contents';
+import { Kernel, KernelMessage } from './kernel';
+import { KernelSpec } from './kernelspec';
+import { ServiceManager } from './manager';
+import { ServerConnection } from './serverconnection';
+import { Session } from './session';
+import { User, UserManager } from './user';
+
+// The default kernel name
+export const DEFAULT_NAME = 'python3';
+
+export const KERNELSPECS: { [key: string]: KernelSpec.ISpecModel } = {
+  [DEFAULT_NAME]: {
+    argv: [
+      '/Users/someuser/miniconda3/envs/jupyterlab/bin/python',
+      '-m',
+      'ipykernel_launcher',
+      '-f',
+      '{connection_file}'
+    ],
+    display_name: 'Python 3',
+    language: 'python',
+    metadata: {},
+    name: DEFAULT_NAME,
+    resources: {}
+  },
+  irkernel: {
+    argv: [
+      '/Users/someuser/miniconda3/envs/jupyterlab/bin/python',
+      '-m',
+      'ipykernel_launcher',
+      '-f',
+      '{connection_file}'
+    ],
+    display_name: 'R',
+    language: 'r',
+    metadata: {},
+    name: 'irkernel',
+    resources: {}
+  }
+};
+
+export const KERNEL_MODELS: Kernel.IModel[] = [
+  {
+    name: DEFAULT_NAME,
+    id: UUID.uuid4()
+  },
+  {
+    name: 'r',
+    id: UUID.uuid4()
+  },
+  {
+    name: DEFAULT_NAME,
+    id: UUID.uuid4()
+  }
+];
+
+// Notebook Paths for certain kernel name
+export const NOTEBOOK_PATHS: { [kernelName: string]: string[] } = {
+  python3: ['Untitled.ipynb', 'Untitled1.ipynb', 'Untitled2.ipynb'],
+  r: ['Visualization.ipynb', 'Analysis.ipynb', 'Conclusion.ipynb']
+};
+
+/**
+ * Clone a kernel connection.
+ */
+export function cloneKernel(
+  kernel: Kernel.IKernelConnection
+): Kernel.IKernelConnection {
+  return (kernel as any).clone();
+}
+
+/**
+ * A mock kernel object.
+ *
+ * @param model The model of the kernel
+ */
+export const KernelMock = jest.fn<
+  Kernel.IKernelConnection,
+  [Private.RecursivePartial<Kernel.IKernelConnection.IOptions>]
+>(options => {
+  const model = { id: 'foo', name: DEFAULT_NAME, ...options.model };
+  options = {
+    clientId: UUID.uuid4(),
+    username: UUID.uuid4(),
+    ...options,
+    model
+  };
+  let executionCount = 0;
+  const spec = Private.kernelSpecForKernelName(model.name)!;
+  const thisObject: Kernel.IKernelConnection = {
+    ...jest.requireActual('@jupyterlab/services'),
+    ...options,
+    ...model,
+    model,
+    serverSettings: ServerConnection.makeSettings(
+      options.serverSettings as Partial<ServerConnection.ISettings>
+    ),
+    status: 'idle',
+    spec: Promise.resolve(spec),
+    dispose: jest.fn(),
+    clone: jest.fn(() => {
+      const newKernel = Private.cloneKernel(options);
+      newKernel.iopubMessage.connect((_, args) => {
+        iopubMessageSignal.emit(args);
+      });
+      newKernel.statusChanged.connect((_, args) => {
+        (thisObject as any).status = args;
+        statusChangedSignal.emit(args);
+      });
+      return newKernel;
+    }),
+    info: Promise.resolve(Private.getInfo(model!.name!)),
+    shutdown: jest.fn(() => Promise.resolve(void 0)),
+    requestHistory: jest.fn(() => {
+      const historyReply = KernelMessage.createMessage({
+        channel: 'shell',
+        msgType: 'history_reply',
+        session: options.clientId!,
+        username: options.username!,
+        content: {
+          history: [],
+          status: 'ok'
+        }
+      });
+      return Promise.resolve(historyReply);
+    }),
+    restart: jest.fn(() => Promise.resolve(void 0)),
+    requestExecute: jest.fn(options => {
+      const msgId = UUID.uuid4();
+      executionCount++;
+      Private.lastMessageProperty.set(thisObject, msgId);
+      const msg = KernelMessage.createMessage({
+        channel: 'iopub',
+        msgType: 'execute_input',
+        session: thisObject.clientId,
+        username: thisObject.username,
+        msgId,
+        content: {
+          code: options.code,
+          execution_count: executionCount
+        }
+      });
+      iopubMessageSignal.emit(msg);
+      const reply = KernelMessage.createMessage<KernelMessage.IExecuteReplyMsg>(
+        {
+          channel: 'shell',
+          msgType: 'execute_reply',
+          session: thisObject.clientId,
+          username: thisObject.username,
+          msgId,
+          content: {
+            user_expressions: {},
+            execution_count: executionCount,
+            status: 'ok'
+          }
+        }
+      );
+      return new MockShellFuture(reply) as Kernel.IShellFuture<
+        KernelMessage.IExecuteRequestMsg,
+        KernelMessage.IExecuteReplyMsg
+      >;
+    })
+  };
+  // Add signals.
+  const iopubMessageSignal = new Signal<
+    Kernel.IKernelConnection,
+    KernelMessage.IIOPubMessage
+  >(thisObject);
+  const statusChangedSignal = new Signal<
+    Kernel.IKernelConnection,
+    Kernel.Status
+  >(thisObject);
+  const pendingInputSignal = new Signal<Kernel.IKernelConnection, boolean>(
+    thisObject
+  );
+  (thisObject as any).statusChanged = statusChangedSignal;
+  (thisObject as any).iopubMessage = iopubMessageSignal;
+  (thisObject as any).pendingInput = pendingInputSignal;
+  (thisObject as any).hasPendingInput = false;
+  return thisObject;
+});
+
+/**
+ * A mock session connection.
+ *
+ * @param options Addition session options to use
+ * @param model A session model to use
+ */
+export const SessionConnectionMock = jest.fn<
+  Session.ISessionConnection,
+  [
+    Private.RecursivePartial<Session.ISessionConnection.IOptions>,
+    Kernel.IKernelConnection | null
+  ]
+>((options, kernel) => {
+  const name = kernel?.name || options.model?.kernel?.name || DEFAULT_NAME;
+  kernel = kernel || new KernelMock({ model: { name } });
+  const model = {
+    id: UUID.uuid4(),
+    path: 'foo',
+    type: 'notebook',
+    name: 'foo',
+    ...options.model,
+    kernel: kernel!.model
+  };
+  const thisObject: Session.ISessionConnection = {
+    ...jest.requireActual('@jupyterlab/services'),
+    ...options,
+    model,
+    ...model,
+    kernel,
+    serverSettings: ServerConnection.makeSettings(
+      options.serverSettings as Partial<ServerConnection.ISettings>
+    ),
+    dispose: jest.fn(),
+    changeKernel: jest.fn(partialModel => {
+      return changeKernel(kernel!, partialModel!);
+    }),
+    shutdown: jest.fn(() => Promise.resolve(void 0)),
+    setPath: jest.fn(path => {
+      (thisObject as any).path = path;
+      propertyChangedSignal.emit('path');
+      return Promise.resolve();
+    }),
+    setName: jest.fn(name => {
+      (thisObject as any).name = name;
+      propertyChangedSignal.emit('name');
+      return Promise.resolve();
+    }),
+    setType: jest.fn(type => {
+      (thisObject as any).type = type;
+      propertyChangedSignal.emit('type');
+      return Promise.resolve();
+    })
+  };
+  const disposedSignal = new Signal<Session.ISessionConnection, undefined>(
+    thisObject
+  );
+  const propertyChangedSignal = new Signal<
+    Session.ISessionConnection,
+    'path' | 'name' | 'type'
+  >(thisObject);
+  const statusChangedSignal = new Signal<
+    Session.ISessionConnection,
+    Kernel.Status
+  >(thisObject);
+  const connectionStatusChangedSignal = new Signal<
+    Session.ISessionConnection,
+    Kernel.ConnectionStatus
+  >(thisObject);
+  const kernelChangedSignal = new Signal<
+    Session.ISessionConnection,
+    Session.ISessionConnection.IKernelChangedArgs
+  >(thisObject);
+  const iopubMessageSignal = new Signal<
+    Session.ISessionConnection,
+    KernelMessage.IIOPubMessage
+  >(thisObject);
+
+  const unhandledMessageSignal = new Signal<
+    Session.ISessionConnection,
+    KernelMessage.IMessage
+  >(thisObject);
+
+  const pendingInputSignal = new Signal<Session.ISessionConnection, boolean>(
+    thisObject
+  );
+
+  kernel!.iopubMessage.connect((_, args) => {
+    iopubMessageSignal.emit(args);
+  }, thisObject);
+
+  kernel!.statusChanged.connect((_, args) => {
+    statusChangedSignal.emit(args);
+  }, thisObject);
+
+  kernel!.pendingInput.connect((_, args) => {
+    pendingInputSignal.emit(args);
+  }, thisObject);
+
+  (thisObject as any).disposed = disposedSignal;
+  (thisObject as any).connectionStatusChanged = connectionStatusChangedSignal;
+  (thisObject as any).propertyChanged = propertyChangedSignal;
+  (thisObject as any).statusChanged = statusChangedSignal;
+  (thisObject as any).kernelChanged = kernelChangedSignal;
+  (thisObject as any).iopubMessage = iopubMessageSignal;
+  (thisObject as any).unhandledMessage = unhandledMessageSignal;
+  (thisObject as any).pendingInput = pendingInputSignal;
+  return thisObject;
+});
+
+/**
+ * A mock contents manager.
+ */
+export const ContentsManagerMock = jest.fn<Contents.IManager, []>(() => {
+  const files = new Map<string, Contents.IModel>();
+  const dummy = new ContentsManager();
+  const checkpoints = new Map<string, Contents.ICheckpointModel>();
+  const checkPointContent = new Map<string, string>();
+
+  const baseModel = Private.createFile({ type: 'directory' });
+  files.set('', { ...baseModel, path: '', name: '' });
+
+  const thisObject: Contents.IManager = {
+    ...jest.requireActual('@jupyterlab/services'),
+    newUntitled: jest.fn(options => {
+      const model = Private.createFile(options || {});
+      files.set(model.path, model);
+      fileChangedSignal.emit({
+        type: 'new',
+        oldValue: null,
+        newValue: model
+      });
+      return Promise.resolve(model);
+    }),
+    createCheckpoint: jest.fn(path => {
+      const lastModified = new Date().toISOString();
+      const data = { id: UUID.uuid4(), last_modified: lastModified };
+      checkpoints.set(path, data);
+      checkPointContent.set(path, files.get(path)?.content);
+      return Promise.resolve(data);
+    }),
+    listCheckpoints: jest.fn(path => {
+      const p = checkpoints.get(path);
+      if (p !== undefined) {
+        return Promise.resolve([p]);
+      }
+      return Promise.resolve([]);
+    }),
+    deleteCheckpoint: jest.fn(path => {
+      if (!checkpoints.has(path)) {
+        return Private.makeResponseError(404);
+      }
+      checkpoints.delete(path);
+      return Promise.resolve();
+    }),
+    restoreCheckpoint: jest.fn(path => {
+      if (!checkpoints.has(path)) {
+        return Private.makeResponseError(404);
+      }
+      (files.get(path) as any).content = checkPointContent.get(path);
+      return Promise.resolve();
+    }),
+    getSharedModelFactory: jest.fn(() => {
+      return null;
+    }),
+    normalize: jest.fn(path => {
+      return dummy.normalize(path);
+    }),
+    localPath: jest.fn(path => {
+      return dummy.localPath(path);
+    }),
+    resolvePath: jest.fn((root, path) => {
+      return dummy.resolvePath(root, path);
+    }),
+    get: jest.fn((path, options) => {
+      path = Private.fixSlash(path);
+      if (!files.has(path)) {
+        return Private.makeResponseError(404);
+      }
+      const model = files.get(path)!;
+      if (model.type === 'directory') {
+        if (options?.content !== false) {
+          const content: Contents.IModel[] = [];
+          files.forEach(fileModel => {
+            if (
+              // If file path is under this directory, add it to contents array.
+              PathExt.dirname(fileModel.path) == model.path &&
+              // But the directory should exclude itself from the contents array.
+              fileModel !== model
+            ) {
+              content.push(fileModel);
+            }
+          });
+          return Promise.resolve({ ...model, content });
+        }
+        return Promise.resolve(model);
+      }
+      if (options?.content != false) {
+        return Promise.resolve(model);
+      }
+      return Promise.resolve({ ...model, content: '' });
+    }),
+    driveName: jest.fn(path => {
+      return dummy.driveName(path);
+    }),
+    rename: jest.fn((oldPath, newPath) => {
+      oldPath = Private.fixSlash(oldPath);
+      newPath = Private.fixSlash(newPath);
+      if (!files.has(oldPath)) {
+        return Private.makeResponseError(404);
+      }
+      const oldValue = files.get(oldPath)!;
+      files.delete(oldPath);
+      const name = PathExt.basename(newPath);
+      const newValue = { ...oldValue, name, path: newPath };
+      files.set(newPath, newValue);
+      fileChangedSignal.emit({
+        type: 'rename',
+        oldValue,
+        newValue
+      });
+      return Promise.resolve(newValue);
+    }),
+    delete: jest.fn(path => {
+      path = Private.fixSlash(path);
+      if (!files.has(path)) {
+        return Private.makeResponseError(404);
+      }
+      const oldValue = files.get(path)!;
+      files.delete(path);
+      fileChangedSignal.emit({
+        type: 'delete',
+        oldValue,
+        newValue: null
+      });
+      return Promise.resolve(void 0);
+    }),
+    save: jest.fn((path, options) => {
+      if (path == 'readonly.txt') {
+        return Private.makeResponseError(403);
+      }
+      path = Private.fixSlash(path);
+      const timeStamp = new Date().toISOString();
+      if (files.has(path)) {
+        files.set(path, {
+          ...files.get(path)!,
+          ...options,
+          last_modified: timeStamp
+        });
+      } else {
+        files.set(path, {
+          path,
+          name: PathExt.basename(path),
+          content: '',
+          writable: true,
+          created: timeStamp,
+          type: 'file',
+          format: 'text',
+          mimetype: 'plain/text',
+          ...options,
+          last_modified: timeStamp
+        });
+      }
+      fileChangedSignal.emit({
+        type: 'save',
+        oldValue: null,
+        newValue: files.get(path)!
+      });
+      return Promise.resolve(files.get(path)!);
+    }),
+    getDownloadUrl: jest.fn(path => {
+      return dummy.getDownloadUrl(path);
+    }),
+    addDrive: jest.fn(drive => {
+      dummy.addDrive(drive);
+    }),
+    dispose: jest.fn()
+  };
+
+  const fileChangedSignal = new Signal<
+    Contents.IManager,
+    Contents.IChangedArgs
+  >(thisObject);
+  (thisObject as any).fileChanged = fileChangedSignal;
+  return thisObject;
+});
+
+/**
+ * A mock sessions manager.
+ */
+export const SessionManagerMock = jest.fn<Session.IManager, []>(() => {
+  let sessions: Session.IModel[] = [];
+  const thisObject: Session.IManager = {
+    ...jest.requireActual('@jupyterlab/services'),
+    ready: Promise.resolve(void 0),
+    isReady: true,
+    startNew: jest.fn(options => {
+      const session = new SessionConnectionMock({ model: options }, null);
+      sessions.push(session.model);
+      runningChangedSignal.emit(sessions);
+      return Promise.resolve(session);
+    }),
+    connectTo: jest.fn(options => {
+      return new SessionConnectionMock(options, null);
+    }),
+    stopIfNeeded: jest.fn(path => {
+      const length = sessions.length;
+      sessions = sessions.filter(model => model.path !== path);
+      if (sessions.length !== length) {
+        runningChangedSignal.emit(sessions);
+      }
+      return Promise.resolve(void 0);
+    }),
+    refreshRunning: jest.fn(() => Promise.resolve(void 0)),
+    running: jest.fn(() => sessions[Symbol.iterator]())
+  };
+
+  const runningChangedSignal = new Signal<Session.IManager, Session.IModel[]>(
+    thisObject
+  );
+  (thisObject as any).runningChanged = runningChangedSignal;
+  return thisObject;
+});
+
+/**
+ * A mock kernel specs manager
+ */
+export const KernelSpecManagerMock = jest.fn<KernelSpec.IManager, []>(() => {
+  const thisObject: KernelSpec.IManager = {
+    ...jest.requireActual('@jupyterlab/services'),
+    specs: { default: DEFAULT_NAME, kernelspecs: KERNELSPECS },
+    isReady: true,
+    ready: Promise.resolve(void 0),
+    refreshSpecs: jest.fn(() => Promise.resolve(void 0))
+  };
+  return thisObject;
+});
+
+/**
+ * A mock service manager.
+ */
+export const ServiceManagerMock = jest.fn<ServiceManager.IManager, []>(() => {
+  const thisObject: ServiceManager.IManager = {
+    ...jest.requireActual('@jupyterlab/services'),
+    ready: Promise.resolve(void 0),
+    isReady: true,
+    contents: new ContentsManagerMock(),
+    sessions: new SessionManagerMock(),
+    kernelspecs: new KernelSpecManagerMock(),
+    dispose: jest.fn()
+  };
+  return thisObject;
+});
+
+/**
+ * A mock kernel shell future.
+ */
+export const MockShellFuture = jest.fn<
+  Kernel.IShellFuture,
+  [KernelMessage.IShellMessage]
+>((result: KernelMessage.IShellMessage) => {
+  const thisObject: Kernel.IShellFuture = {
+    ...jest.requireActual('@jupyterlab/services'),
+    dispose: jest.fn(),
+    done: Promise.resolve(result)
+  };
+  return thisObject;
+});
+
+export function changeKernel(
+  kernel: Kernel.IKernelConnection,
+  partialModel: Partial<Kernel.IModel>
+): Promise<Kernel.IKernelConnection> {
+  if (partialModel.id) {
+    const kernelIdx = KERNEL_MODELS.findIndex(model => {
+      return model.id === partialModel.id;
+    });
+    if (kernelIdx !== -1) {
+      (kernel.model as any) = Private.RUNNING_KERNELS[kernelIdx].model;
+      (kernel.id as any) = partialModel.id;
+      return Promise.resolve(Private.RUNNING_KERNELS[kernelIdx]);
+    } else {
+      throw new Error(
+        `Unable to change kernel to one with id: ${partialModel.id}`
+      );
+    }
+  } else if (partialModel.name) {
+    const kernelIdx = KERNEL_MODELS.findIndex(model => {
+      return model.name === partialModel.name;
+    });
+    if (kernelIdx !== -1) {
+      (kernel.model as any) = Private.RUNNING_KERNELS[kernelIdx].model;
+      (kernel.id as any) = partialModel.id;
+      return Promise.resolve(Private.RUNNING_KERNELS[kernelIdx]);
+    } else {
+      throw new Error(
+        `Unable to change kernel to one with name: ${partialModel.name}`
+      );
+    }
+  } else {
+    throw new Error(`Unable to change kernel`);
+  }
+}
+
+/**
+ * A namespace for module private data.
+ */
+namespace Private {
+  export type RecursivePartial<T> = {
+    [P in keyof T]?: RecursivePartial<T[P]>;
+  };
+
+  export function createFile(
+    options?: Contents.ICreateOptions
+  ): Contents.IModel {
+    options = options || {};
+    let name = UUID.uuid4();
+    switch (options.type) {
+      case 'directory':
+        name = `Untitled Folder_${name}`;
+        break;
+      case 'notebook':
+        name = `Untitled_${name}.ipynb`;
+        break;
+      default:
+        name = `untitled_${name}${options.ext || '.txt'}`;
+    }
+
+    const path = PathExt.join(options.path || '', name);
+    let content = '';
+    if (options.type === 'notebook') {
+      content = JSON.stringify({});
+    }
+    const timeStamp = new Date().toISOString();
+    return {
+      path,
+      content,
+      name,
+      last_modified: timeStamp,
+      writable: true,
+      created: timeStamp,
+      type: options.type || 'file',
+      format: 'text',
+      mimetype: 'plain/text'
+    };
+  }
+
+  export function fixSlash(path: string): string {
+    if (path.endsWith('/')) {
+      path = path.slice(0, path.length - 1);
+    }
+    return path;
+  }
+
+  export function makeResponseError<T>(status: number): Promise<T> {
+    const resp = new Response(void 0, { status });
+    return Promise.reject(new ServerConnection.ResponseError(resp));
+  }
+
+  export function cloneKernel(
+    options: RecursivePartial<Kernel.IKernelConnection.IOptions>
+  ): Kernel.IKernelConnection {
+    return new KernelMock({ ...options, clientId: UUID.uuid4() });
+  }
+
+  // Get the kernel spec for kernel name
+  export function kernelSpecForKernelName(name: string): KernelSpec.ISpecModel {
+    return KERNELSPECS[name];
+  }
+
+  // Get the kernel info for kernel name
+  export function getInfo(name: string): KernelMessage.IInfoReply {
+    return {
+      protocol_version: '1',
+      implementation: 'foo',
+      implementation_version: '1',
+      language_info: {
+        version: '1',
+        name
+      },
+      banner: 'hello, world!',
+      help_links: [],
+      status: 'ok'
+    };
+  }
+
+  // This list of running kernels simply mirrors the KERNEL_MODELS and KERNELSPECS lists
+  export const RUNNING_KERNELS: Kernel.IKernelConnection[] = KERNEL_MODELS.map(
+    (model, _) => {
+      return new KernelMock({ model });
+    }
+  );
+
+  export const lastMessageProperty = new AttachedProperty<
+    Kernel.IKernelConnection,
+    string
+  >({
+    name: 'lastMessageId',
+    create: () => ''
+  });
+}
+
+/**
+ * The user API service manager.
+ */
+export class FakeUserManager extends BaseManager implements User.IManager {
+  private _isReady = false;
+  private _ready: Promise<void>;
+
+  private _identity: User.IIdentity;
+  private _permissions: ReadonlyJSONObject;
+
+  private _userChanged = new Signal<this, User.IUser>(this);
+  private _connectionFailure = new Signal<this, Error>(this);
+
+  /**
+   * Create a new user manager.
+   */
+  constructor(
+    options: UserManager.IOptions = {},
+    identity: User.IIdentity,
+    permissions: ReadonlyJSONObject
+  ) {
+    super(options);
+
+    // Initialize internal data.
+    this._ready = new Promise<void>(resolve => {
+      // Schedule updating the user to the next macro task queue.
+      setTimeout(() => {
+        this._identity = identity;
+        this._permissions = permissions;
+
+        this._userChanged.emit({
+          identity: this._identity,
+          permissions: this._permissions as PartialJSONObject
+        });
+
+        resolve();
+      }, 0);
+    })
+      .then(() => {
+        if (this.isDisposed) {
+          return;
+        }
+        this._isReady = true;
+      })
+      .catch(_ => undefined);
+  }
+
+  /**
+   * The server settings for the manager.
+   */
+  readonly serverSettings: ServerConnection.ISettings;
+
+  /**
+   * Test whether the manager is ready.
+   */
+  get isReady(): boolean {
+    return this._isReady;
+  }
+
+  /**
+   * A promise that fulfills when the manager is ready.
+   */
+  get ready(): Promise<void> {
+    return this._ready;
+  }
+
+  /**
+   * Get the most recently fetched identity.
+   */
+  get identity(): User.IIdentity | null {
+    return this._identity;
+  }
+
+  /**
+   * Get the most recently fetched permissions.
+   */
+  get permissions(): ReadonlyJSONObject | null {
+    return this._permissions;
+  }
+
+  /**
+   * A signal emitted when the user changes.
+   */
+  get userChanged(): ISignal<this, User.IUser> {
+    return this._userChanged;
+  }
+
+  /**
+   * A signal emitted when there is a connection failure.
+   */
+  get connectionFailure(): ISignal<this, Error> {
+    return this._connectionFailure;
+  }
+
+  /**
+   * Dispose of the resources used by the manager.
+   */
+  dispose(): void {
+    super.dispose();
+  }
+
+  /**
+   * Force a refresh of the specs from the server.
+   *
+   * @returns A promise that resolves when the specs are fetched.
+   *
+   * #### Notes
+   * This is intended to be called only in response to a user action,
+   * since the manager maintains its internal state.
+   */
+  async refreshUser(): Promise<void> {
+    return Promise.resolve();
+  }
+}
diff --git a/packages/services/src/user/index.ts b/packages/services/src/user/index.ts
index 0e4cffaf99db..deefd8c06f4a 100644
--- a/packages/services/src/user/index.ts
+++ b/packages/services/src/user/index.ts
@@ -60,6 +60,7 @@ export class UserManager extends BaseManager implements User.IManager {
       .catch(
         _ =>
           // Return a promise that will never resolve, so user service is never ready
+          // This typically occurs when the backend has no user service
           new Promise(() => {
             // no-op
           })
diff --git a/packages/services/src/validate.ts b/packages/services/src/validate.ts
index cd48678c1c6c..ad07982ebfb2 100644
--- a/packages/services/src/validate.ts
+++ b/packages/services/src/validate.ts
@@ -6,6 +6,7 @@
  * of a given type and among a given set of values.
  */
 export function validateProperty(
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
   object: any,
   name: string,
   typeName?: string,
diff --git a/packages/services/test/config/config.spec.ts b/packages/services/test/config/config.spec.ts
index 22fe9d8da4e5..fb052861f599 100644
--- a/packages/services/test/config/config.spec.ts
+++ b/packages/services/test/config/config.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expectFailure, JupyterServer } from '@jupyterlab/testutils';
+import { expectFailure, JupyterServer } from '@jupyterlab/testing';
 import { JSONObject, UUID } from '@lumino/coreutils';
 import { ConfigSection, ConfigWithDefaults } from '../../src';
 import { getRequestHandler, handleRequest, makeSettings } from '../utils';
@@ -22,7 +22,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -50,7 +50,9 @@ describe('config', () => {
         name: randomName(),
         serverSettings
       });
-      await expectFailure(configPromise, 'Invalid response: 201 Created');
+      await expect(configPromise).rejects.toThrow(
+        /Invalid response: 201 Created/
+      );
     });
   });
 
@@ -81,7 +83,7 @@ describe('config', () => {
       const config = await ConfigSection.create({ name: randomName() });
       handleRequest(config, 201, {});
       const update = config.update({ foo: 'baz' });
-      await expectFailure(update, 'Invalid response: 201 Created');
+      await expect(update).rejects.toThrow(/Invalid response: 201 Created/);
     });
   });
 });
diff --git a/packages/services/test/contents/index.spec.ts b/packages/services/test/contents/index.spec.ts
index ab4ea8ddeff3..9782f2ed5ead 100644
--- a/packages/services/test/contents/index.spec.ts
+++ b/packages/services/test/contents/index.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expectFailure, JupyterServer } from '@jupyterlab/testutils';
+import { expectFailure, JupyterServer } from '@jupyterlab/testing';
 import { Contents, ContentsManager, Drive, ServerConnection } from '../../src';
 import { DEFAULT_FILE, handleRequest, makeSettings } from '../utils';
 
@@ -29,7 +29,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -110,10 +110,10 @@ describe('contents', () => {
   });
 
   describe('#addDrive()', () => {
-    it('should add a new drive to the manager', () => {
+    it('should add a new drive to the manager', async () => {
       contents.addDrive(new Drive({ name: 'other' }));
       handleRequest(contents, 200, DEFAULT_FILE);
-      return contents.get('other:');
+      await expect(contents.get('other:')).resolves.not.toThrow();
     });
   });
 
@@ -260,7 +260,25 @@ describe('contents', () => {
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 201, DEFAULT_DIR);
       const get = contents.get('/foo');
-      await expectFailure(get, 'Invalid response: 201 Created');
+      await expect(get).rejects.toThrow(/Invalid response: 201 Created/);
+    });
+
+    it('should store original server path for directory', async () => {
+      const drive = new Drive({ name: 'other', serverSettings });
+      contents.addDrive(drive);
+      handleRequest(drive, 200, DEFAULT_DIR);
+      const options: Contents.IFetchOptions = { type: 'directory' };
+      const model = await contents.get('other:/foo', options);
+      expect(model.serverPath).toBe('foo/bar');
+    });
+
+    it('should store original server path for a file', async () => {
+      const drive = new Drive({ name: 'other', serverSettings });
+      contents.addDrive(drive);
+      handleRequest(drive, 200, DEFAULT_FILE);
+      const options: Contents.IFetchOptions = { type: 'file' };
+      const model = await contents.get('other:/foo', options);
+      expect(model.serverPath).toBe('foo/test');
     });
 
     it('should store original server path for directory', async () => {
@@ -387,27 +405,29 @@ describe('contents', () => {
         ext: 'py'
       };
       const newFile = contents.newUntitled(options);
-      await expectFailure(newFile);
+      await expect(newFile).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 200, DEFAULT_DIR);
       const newDir = contents.newUntitled();
-      await expectFailure(newDir, 'Invalid response: 200 OK');
+      await expect(newDir).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
   describe('#delete()', () => {
-    it('should delete a file', () => {
+    it('should delete a file', async () => {
       handleRequest(contents, 204, {});
-      return contents.delete('/foo/bar.txt');
+      await expect(contents.delete('/foo/bar.txt')).resolves.not.toThrow();
     });
 
-    it('should delete a file on an additional drive', () => {
+    it('should delete a file on an additional drive', async () => {
       const other = new Drive({ name: 'other', serverSettings });
       contents.addDrive(other);
       handleRequest(other, 204, {});
-      return contents.delete('other:/foo/bar.txt');
+      await expect(
+        contents.delete('other:/foo/bar.txt')
+      ).resolves.not.toThrow();
     });
 
     it('should emit the fileChanged signal', async () => {
@@ -426,19 +446,19 @@ describe('contents', () => {
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 200, {});
       const del = contents.delete('/foo/bar.txt');
-      await expectFailure(del, 'Invalid response: 200 OK');
+      await expect(del).rejects.toThrow(/Invalid response: 200 OK/);
     });
 
     it('should throw a specific error', async () => {
       handleRequest(contents, 400, {});
       const del = contents.delete('/foo/');
-      await expectFailure(del, '');
+      await expect(del).rejects.toThrow();
     });
 
     it('should throw a general error', async () => {
       handleRequest(contents, 500, {});
       const del = contents.delete('/foo/');
-      await expectFailure(del, '');
+      await expect(del).rejects.toThrow();
     });
   });
 
@@ -480,13 +500,13 @@ describe('contents', () => {
       delete dir.path;
       handleRequest(contents, 200, dir);
       const rename = contents.rename('/foo/bar.txt', '/foo/baz.txt');
-      await expectFailure(rename);
+      await expect(rename).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 201, DEFAULT_FILE);
       const rename = contents.rename('/foo/bar.txt', '/foo/baz.txt');
-      await expectFailure(rename, 'Invalid response: 201 Created');
+      await expect(rename).rejects.toThrow(/Invalid response: 201 Created/);
     });
   });
 
@@ -532,13 +552,13 @@ describe('contents', () => {
       delete file.format;
       handleRequest(contents, 200, file);
       const save = contents.save('/foo', { type: 'file', name: 'test' });
-      await expectFailure(save);
+      await expect(save).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 204, DEFAULT_FILE);
       const save = contents.save('/foo', { type: 'file', name: 'test' });
-      await expectFailure(save, 'Invalid response: 204 No Content');
+      await expect(save).rejects.toThrow(/Invalid response: 204 No Content/);
     });
   });
 
@@ -575,13 +595,13 @@ describe('contents', () => {
       delete file.type;
       handleRequest(contents, 201, file);
       const copy = contents.copy('/foo/bar.txt', '/baz');
-      await expectFailure(copy);
+      await expect(copy).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 200, DEFAULT_FILE);
       const copy = contents.copy('/foo/bar.txt', '/baz');
-      await expectFailure(copy, 'Invalid response: 200 OK');
+      await expect(copy).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -607,13 +627,13 @@ describe('contents', () => {
       delete cp.last_modified;
       handleRequest(contents, 201, cp);
       const checkpoint = contents.createCheckpoint('/foo/bar.txt');
-      await expectFailure(checkpoint);
+      await expect(checkpoint).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 200, DEFAULT_CP);
       const checkpoint = contents.createCheckpoint('/foo/bar.txt');
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -642,27 +662,29 @@ describe('contents', () => {
       await expectFailure(checkpoints);
       handleRequest(contents, 200, DEFAULT_CP);
       const newCheckpoints = contents.listCheckpoints('/foo/bar.txt');
-      await expectFailure(newCheckpoints, 'Invalid Checkpoint list');
+      await expect(newCheckpoints).rejects.toThrow(/Invalid Checkpoint list/);
     });
 
     it('should fail for an incorrect response', async () => {
       handleRequest(contents, 201, {});
       const checkpoints = contents.listCheckpoints('/foo/bar.txt');
-      await expectFailure(checkpoints, 'Invalid response: 201 Created');
+      await expect(checkpoints).rejects.toThrow(
+        /Invalid response: 201 Created/
+      );
     });
   });
 
   describe('#restoreCheckpoint()', () => {
-    it('should restore a checkpoint', () => {
+    it('should restore a checkpoint', async () => {
       handleRequest(contents, 204, {});
       const checkpoint = contents.restoreCheckpoint(
         '/foo/bar.txt',
         DEFAULT_CP.id
       );
-      return checkpoint;
+      await expect(checkpoint).resolves.not.toThrow();
     });
 
-    it('should restore a checkpoint on an additional drive', () => {
+    it('should restore a checkpoint on an additional drive', async () => {
       const other = new Drive({ name: 'other', serverSettings });
       contents.addDrive(other);
       handleRequest(other, 204, {});
@@ -670,7 +692,7 @@ describe('contents', () => {
         'other:/foo/bar.txt',
         DEFAULT_CP.id
       );
-      return checkpoint;
+      await expect(checkpoint).resolves.not.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
@@ -679,21 +701,25 @@ describe('contents', () => {
         '/foo/bar.txt',
         DEFAULT_CP.id
       );
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
   describe('#deleteCheckpoint()', () => {
-    it('should delete a checkpoint', () => {
+    it('should delete a checkpoint', async () => {
       handleRequest(contents, 204, {});
-      return contents.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
+      await expect(
+        contents.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id)
+      ).resolves.not.toThrow();
     });
 
-    it('should delete a checkpoint on an additional drive', () => {
+    it('should delete a checkpoint on an additional drive', async () => {
       const other = new Drive({ name: 'other', serverSettings });
       contents.addDrive(other);
       handleRequest(other, 204, {});
-      return contents.deleteCheckpoint('other:/foo/bar.txt', DEFAULT_CP.id);
+      await expect(
+        contents.deleteCheckpoint('other:/foo/bar.txt', DEFAULT_CP.id)
+      ).resolves.not.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
@@ -702,7 +728,7 @@ describe('contents', () => {
         '/foo/bar.txt',
         DEFAULT_CP.id
       );
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 });
@@ -813,7 +839,7 @@ describe('drive', () => {
       const drive = new Drive();
       handleRequest(drive, 201, DEFAULT_DIR);
       const get = drive.get('/foo');
-      await expectFailure(get, 'Invalid response: 201 Created');
+      await expect(get).rejects.toThrow(/Invalid response: 201 Created/);
     });
   });
 
@@ -903,14 +929,14 @@ describe('drive', () => {
         ext: 'py'
       };
       const newFile = drive.newUntitled(options);
-      await expectFailure(newFile);
+      await expect(newFile).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, DEFAULT_DIR);
       const newDir = drive.newUntitled();
-      await expectFailure(newDir, 'Invalid response: 200 OK');
+      await expect(newDir).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -918,7 +944,7 @@ describe('drive', () => {
     it('should delete a file', async () => {
       const drive = new Drive();
       handleRequest(drive, 204, {});
-      await drive.delete('/foo/bar.txt');
+      await expect(drive.delete('/foo/bar.txt')).resolves.not.toThrow();
     });
 
     it('should emit the fileChanged signal', async () => {
@@ -938,28 +964,28 @@ describe('drive', () => {
     it('should accept server settings', async () => {
       const drive = new Drive({ serverSettings });
       handleRequest(drive, 204, {});
-      await drive.delete('/foo/bar.txt');
+      await expect(drive.delete('/foo/bar.txt')).resolves.not.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, {});
       const del = drive.delete('/foo/bar.txt');
-      await expectFailure(del, 'Invalid response: 200 OK');
+      await expect(del).rejects.toThrow(/Invalid response: 200 OK/);
     });
 
     it('should throw a specific error', async () => {
       const drive = new Drive();
       handleRequest(drive, 400, {});
       const del = drive.delete('/foo/');
-      await expectFailure(del, '');
+      await expect(del).rejects.toThrow();
     });
 
     it('should throw a general error', async () => {
       const drive = new Drive();
       handleRequest(drive, 500, {});
       const del = drive.delete('/foo/');
-      await expectFailure(del, '');
+      await expect(del).rejects.toThrow();
     });
   });
 
@@ -1000,14 +1026,14 @@ describe('drive', () => {
       delete dir.path;
       handleRequest(drive, 200, dir);
       const rename = drive.rename('/foo/bar.txt', '/foo/baz.txt');
-      await expectFailure(rename);
+      await expect(rename).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 201, DEFAULT_FILE);
       const rename = drive.rename('/foo/bar.txt', '/foo/baz.txt');
-      await expectFailure(rename, 'Invalid response: 201 Created');
+      await expect(rename).rejects.toThrow(/Invalid response: 201 Created/);
     });
   });
 
@@ -1056,14 +1082,14 @@ describe('drive', () => {
       delete file.format;
       handleRequest(drive, 200, file);
       const save = drive.save('/foo', { type: 'file', name: 'test' });
-      await expectFailure(save);
+      await expect(save).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 204, DEFAULT_FILE);
       const save = drive.save('/foo', { type: 'file', name: 'test' });
-      await expectFailure(save, 'Invalid response: 204 No Content');
+      await expect(save).rejects.toThrow(/Invalid response: 204 No Content/);
     });
   });
 
@@ -1102,14 +1128,14 @@ describe('drive', () => {
       delete file.type;
       handleRequest(drive, 201, file);
       const copy = drive.copy('/foo/bar.txt', '/baz');
-      await expectFailure(copy);
+      await expect(copy).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, DEFAULT_FILE);
       const copy = drive.copy('/foo/bar.txt', '/baz');
-      await expectFailure(copy, 'Invalid response: 200 OK');
+      await expect(copy).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -1136,14 +1162,14 @@ describe('drive', () => {
       delete cp.last_modified;
       handleRequest(drive, 201, cp);
       const checkpoint = drive.createCheckpoint('/foo/bar.txt');
-      await expectFailure(checkpoint);
+      await expect(checkpoint).rejects.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, DEFAULT_CP);
       const checkpoint = drive.createCheckpoint('/foo/bar.txt');
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -1173,58 +1199,64 @@ describe('drive', () => {
       await expectFailure(checkpoints);
       handleRequest(drive, 200, DEFAULT_CP);
       const newCheckpoints = drive.listCheckpoints('/foo/bar.txt');
-      await expectFailure(newCheckpoints, 'Invalid Checkpoint list');
+      await expect(newCheckpoints).rejects.toThrow(/Invalid Checkpoint list/);
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 201, {});
       const checkpoints = drive.listCheckpoints('/foo/bar.txt');
-      await expectFailure(checkpoints, 'Invalid response: 201 Created');
+      await expect(checkpoints).rejects.toThrow(
+        /Invalid response: 201 Created/
+      );
     });
   });
 
   describe('#restoreCheckpoint()', () => {
-    it('should restore a checkpoint', () => {
+    it('should restore a checkpoint', async () => {
       const drive = new Drive();
       handleRequest(drive, 204, {});
       const checkpoint = drive.restoreCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
-      return checkpoint;
+      await expect(checkpoint).resolves.not.toThrow();
     });
 
-    it('should accept server settings', () => {
+    it('should accept server settings', async () => {
       const drive = new Drive({ serverSettings });
       handleRequest(drive, 204, {});
       const checkpoint = drive.restoreCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
-      return checkpoint;
+      await expect(checkpoint).resolves.not.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, {});
       const checkpoint = drive.restoreCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
   describe('#deleteCheckpoint()', () => {
-    it('should delete a checkpoint', () => {
+    it('should delete a checkpoint', async () => {
       const drive = new Drive();
       handleRequest(drive, 204, {});
-      return drive.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
+      await expect(
+        drive.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id)
+      ).resolves.not.toThrow();
     });
 
-    it('should accept server settings', () => {
+    it('should accept server settings', async () => {
       const drive = new Drive({ serverSettings });
       handleRequest(drive, 204, {});
-      return drive.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
+      await expect(
+        drive.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id)
+      ).resolves.not.toThrow();
     });
 
     it('should fail for an incorrect response', async () => {
       const drive = new Drive();
       handleRequest(drive, 200, {});
       const checkpoint = drive.deleteCheckpoint('/foo/bar.txt', DEFAULT_CP.id);
-      await expectFailure(checkpoint, 'Invalid response: 200 OK');
+      await expect(checkpoint).rejects.toThrow(/Invalid response: 200 OK/);
     });
   });
 
@@ -1239,6 +1271,7 @@ describe('drive', () => {
         if (content[i].type === 'file') {
           path = content[i].path;
           const msg = await contents.get(path, { type: 'file' });
+          // eslint-disable-next-line jest/no-conditional-expect
           expect(msg.path).toBe(path);
           called = true;
         }
@@ -1261,7 +1294,7 @@ describe('drive', () => {
         format: 'text'
       };
       await contents.save('baz.txt', options);
-      await contents.delete('baz.txt');
+      await expect(contents.delete('baz.txt')).resolves.not.toThrow();
     });
 
     it('should exercise the checkpoint API', async () => {
diff --git a/packages/services/test/contents/validate.spec.ts b/packages/services/test/contents/validate.spec.ts
index 28c81698f373..3f546751c986 100644
--- a/packages/services/test/contents/validate.spec.ts
+++ b/packages/services/test/contents/validate.spec.ts
@@ -10,35 +10,39 @@ import { DEFAULT_FILE } from '../utils';
 describe('validate', () => {
   describe('validateContentsModel()', () => {
     it('should pass with valid data', () => {
-      validateContentsModel(DEFAULT_FILE);
+      expect(() => {
+        validateContentsModel(DEFAULT_FILE);
+      }).not.toThrow();
     });
 
     it('should fail on missing data', () => {
       const model = JSON.parse(JSON.stringify(DEFAULT_FILE));
       delete model['path'];
-      expect(() => validateContentsModel(model)).toThrowError();
+      expect(() => validateContentsModel(model)).toThrow();
     });
 
     it('should fail on incorrect data', () => {
       const model = JSON.parse(JSON.stringify(DEFAULT_FILE));
       model.type = 1;
-      expect(() => validateContentsModel(model)).toThrowError();
+      expect(() => validateContentsModel(model)).toThrow();
     });
   });
 
   describe('validateCheckpointModel()', () => {
     it('should pass with valid data', () => {
-      validateCheckpointModel({ id: 'foo', last_modified: 'yesterday ' });
+      expect(() => {
+        validateCheckpointModel({ id: 'foo', last_modified: 'yesterday ' });
+      }).not.toThrow();
     });
 
     it('should fail on missing data', () => {
       const model = { id: 'foo' };
-      expect(() => validateCheckpointModel(model as any)).toThrowError();
+      expect(() => validateCheckpointModel(model as any)).toThrow();
     });
 
     it('should fail on incorrect data', () => {
       const model = { id: 1, last_modified: '1' };
-      expect(() => validateCheckpointModel(model as any)).toThrowError();
+      expect(() => validateCheckpointModel(model as any)).toThrow();
     });
   });
 });
diff --git a/packages/services/test/event/manager.spec.ts b/packages/services/test/event/manager.spec.ts
new file mode 100644
index 000000000000..8eaa3cc9d554
--- /dev/null
+++ b/packages/services/test/event/manager.spec.ts
@@ -0,0 +1,138 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { JupyterServer } from '@jupyterlab/testing';
+import { PromiseDelegate } from '@lumino/coreutils';
+import { EventManager, ServerConnection } from '../../src';
+
+describe('setting', () => {
+  let server: JupyterServer;
+
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
+  }, 30000);
+
+  afterAll(async () => {
+    await server.shutdown();
+  });
+
+  describe('EventManager', () => {
+    let manager: EventManager;
+
+    beforeEach(() => {
+      manager = new EventManager({
+        serverSettings: ServerConnection.makeSettings({ appUrl: 'lab' })
+      });
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should accept no options', () => {
+        const manager = new EventManager();
+        expect(manager).toBeInstanceOf(EventManager);
+      });
+
+      it('should accept options', () => {
+        const manager = new EventManager({
+          serverSettings: ServerConnection.makeSettings()
+        });
+        expect(manager).toBeInstanceOf(EventManager);
+      });
+    });
+
+    describe('#serverSettings', () => {
+      it('should be the server settings', () => {
+        const baseUrl = 'http://localhost/foo';
+        const serverSettings = ServerConnection.makeSettings({ baseUrl });
+        const manager = new EventManager({ serverSettings });
+        expect(manager.serverSettings.baseUrl).toBe(baseUrl);
+      });
+    });
+
+    describe('#stream[Symbol.asyncIterator]()', () => {
+      it('should yield an event', async () => {
+        const delegate = new PromiseDelegate<void>();
+        const expected = `#stream[Symbol.asyncIterator]() test`;
+        let received = '';
+        setTimeout(async () => {
+          for await (const emission of manager.stream) {
+            received = (emission.path as string) || '';
+            if (received === expected) {
+              break;
+            }
+          }
+          expect(received).toEqual(expected);
+          delegate.resolve();
+        });
+        setTimeout(() => {
+          void manager.emit({
+            // eslint-disable-next-line camelcase
+            schema_id:
+              'https://events.jupyter.org/jupyter_server/contents_service/v1',
+            data: { action: 'get', path: expected },
+            version: '1'
+          });
+        }, 500);
+        return delegate.promise;
+      });
+    });
+
+    describe('#stream.connect()', () => {
+      it('should yield an event', async () => {
+        const delegate = new PromiseDelegate<void>();
+        const expected = `#stream.connect() test`;
+        let received = '';
+        manager.stream.connect((_, emission) => {
+          received = (emission.path as string) || '';
+          if (received !== expected) {
+            return;
+          }
+          expect(received).toEqual(expected);
+          delegate.resolve();
+        });
+        setTimeout(() => {
+          void manager.emit({
+            // eslint-disable-next-line camelcase
+            schema_id:
+              'https://events.jupyter.org/jupyter_server/contents_service/v1',
+            data: { action: 'get', path: expected },
+            version: '1'
+          });
+        }, 500);
+        return delegate.promise;
+      });
+    });
+
+    describe('#emit()', () => {
+      it('should emit an event', async () => {
+        const delegate = new PromiseDelegate<void>();
+        const expected = `#emit() test`;
+        let received = '';
+        setTimeout(async () => {
+          for await (const emission of manager.stream) {
+            received = (emission.path as string) || '';
+            if (received === expected) {
+              break;
+            }
+          }
+          expect(received).toEqual(expected);
+          delegate.resolve();
+        });
+        setTimeout(() => {
+          void manager.emit({
+            // eslint-disable-next-line camelcase
+            schema_id:
+              'https://events.jupyter.org/jupyter_server/contents_service/v1',
+            data: { action: 'get', path: expected },
+            version: '1'
+          });
+        }, 500);
+        return delegate.promise;
+      });
+    });
+  });
+});
diff --git a/packages/services/test/kernel/comm.spec.ts b/packages/services/test/kernel/comm.spec.ts
index 456c49afef92..424f81f2af7b 100644
--- a/packages/services/test/kernel/comm.spec.ts
+++ b/packages/services/test/kernel/comm.spec.ts
@@ -1,11 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  isFulfilled,
-  flakyIt as it,
-  JupyterServer
-} from '@jupyterlab/testutils';
+import { isFulfilled, JupyterServer } from '@jupyterlab/testing';
 import { PromiseDelegate } from '@lumino/coreutils';
 import { Kernel, KernelManager, KernelMessage } from '../../src';
 
@@ -42,25 +38,19 @@ def target_func(comm, msg):
 get_ipython().kernel.comm_manager.register_target("test", target_func)
 `;
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('jupyter.services - Comm', () => {
+  let server: JupyterServer;
   let kernelManager: KernelManager;
   let kernel: Kernel.IKernelConnection;
 
+  jest.retryTimes(3);
+
   beforeAll(async () => {
-    jest.setTimeout(20000);
+    server = new JupyterServer();
+    await server.start();
     kernelManager = new KernelManager();
     kernel = await kernelManager.startNew({ name: 'ipython' });
-  });
+  }, 30000);
 
   afterEach(() => {
     // A no-op comm target.
@@ -71,6 +61,7 @@ describe('jupyter.services - Comm', () => {
 
   afterAll(async () => {
     await kernel.shutdown();
+    await server.shutdown();
   });
 
   describe('Kernel', () => {
@@ -88,7 +79,7 @@ describe('jupyter.services - Comm', () => {
       });
 
       it('should throw an error if there is an existing comm', () => {
-        expect(() => kernel.createComm('test', '1234')).toThrowError();
+        expect(() => kernel.createComm('test', '1234')).toThrow();
       });
 
       it('should throw an error when the kernel does not handle comms', async () => {
@@ -97,7 +88,7 @@ describe('jupyter.services - Comm', () => {
           { handleComms: false }
         );
         expect(kernel2.handleComms).toBe(false);
-        expect(() => kernel2.createComm('test', '1234')).toThrowError();
+        expect(() => kernel2.createComm('test', '1234')).toThrow();
       });
     });
 
@@ -274,7 +265,7 @@ describe('jupyter.services - Comm', () => {
           comm.send('quit');
         });
         await kernel.requestExecute({ code: SEND }, true).done;
-        await promise.promise;
+        await expect(promise.promise).resolves.not.toThrow();
       });
     });
 
@@ -322,7 +313,7 @@ describe('jupyter.services - Comm', () => {
           data,
           data.buffer
         ]);
-        await future2.done;
+        await expect(future2.done).resolves.not.toThrow();
       });
     });
 
@@ -330,13 +321,13 @@ describe('jupyter.services - Comm', () => {
       it('should send a message to the server', async () => {
         await comm.open().done;
         const future = comm.send({ foo: 'bar' }, { fizz: 'buzz' });
-        await future.done;
+        await expect(future.done).resolves.not.toThrow();
       });
 
       it('should pass through a buffers field', async () => {
         await comm.open().done;
         const future = comm.send({ buffers: 'bar' });
-        await future.done;
+        await expect(future.done).resolves.not.toThrow();
       });
     });
 
@@ -346,7 +337,7 @@ describe('jupyter.services - Comm', () => {
         const encoder = new TextEncoder();
         const data = encoder.encode('hello');
         const future = comm.close({ foo: 'bar' }, {}, [data, data.buffer]);
-        await future.done;
+        await expect(future.done).resolves.not.toThrow();
       });
 
       it('should trigger an onClose', async () => {
@@ -366,7 +357,7 @@ describe('jupyter.services - Comm', () => {
         await comm.close({ foo: 'bar' }).done;
         expect(() => {
           comm.send('test');
-        }).toThrowError();
+        }).toThrow();
       });
     });
   });
diff --git a/packages/services/test/kernel/ifuture.spec.ts b/packages/services/test/kernel/ifuture.spec.ts
index 379e3d510e15..77962e80f058 100644
--- a/packages/services/test/kernel/ifuture.spec.ts
+++ b/packages/services/test/kernel/ifuture.spec.ts
@@ -1,27 +1,22 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { flakyIt as it, JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { Kernel, KernelAPI, KernelManager, KernelMessage } from '../../src';
 import { KernelTester } from '../utils';
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('Kernel.IShellFuture', () => {
+  let server: JupyterServer;
   let tester: KernelTester;
   let kernelManager: KernelManager;
 
-  beforeAll(() => {
+  jest.retryTimes(3);
+
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
     kernelManager = new KernelManager();
-  });
+  }, 30000);
 
   afterEach(() => {
     if (tester) {
@@ -32,6 +27,7 @@ describe('Kernel.IShellFuture', () => {
   afterAll(async () => {
     const models = await KernelAPI.listRunning();
     await Promise.all(models.map(m => KernelAPI.shutdownKernel(m.id)));
+    await server.shutdown();
   });
 
   it('should have a msg attribute', async () => {
@@ -105,8 +101,10 @@ describe('Kernel.IShellFuture', () => {
           calls.push('first');
           // Check to make sure we actually got the messages we expected.
           if (msg.header.msg_type === 'stream') {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect((msg as KernelMessage.IStreamMsg).content.text).toBe('foo');
           } else {
+            // eslint-disable-next-line jest/no-conditional-expect
             expect(
               (msg as KernelMessage.IStatusMsg).content.execution_state
             ).toBe('idle');
diff --git a/packages/services/test/kernel/ikernel.spec.ts b/packages/services/test/kernel/ikernel.spec.ts
index 62cf0593f989..26de78d7e063 100644
--- a/packages/services/test/kernel/ikernel.spec.ts
+++ b/packages/services/test/kernel/ikernel.spec.ts
@@ -2,12 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { PageConfig } from '@jupyterlab/coreutils';
-import {
-  expectFailure,
-  flakyIt as it,
-  JupyterServer,
-  testEmission
-} from '@jupyterlab/testutils';
+import { JupyterServer, testEmission } from '@jupyterlab/testing';
 import { PromiseDelegate, UUID } from '@lumino/coreutils';
 import {
   Kernel,
@@ -18,26 +13,20 @@ import {
 } from '../../src';
 import { FakeKernelManager, handleRequest, KernelTester } from '../utils';
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('Kernel.IKernel', () => {
   let defaultKernel: Kernel.IKernelConnection;
   let specs: KernelSpec.ISpecModels;
   let kernelManager: KernelManager;
+  let server: JupyterServer;
+
+  jest.retryTimes(3);
 
   beforeAll(async () => {
-    jest.setTimeout(20000);
+    server = new JupyterServer();
+    await server.start();
     kernelManager = new FakeKernelManager();
     specs = await KernelSpecAPI.getSpecs();
-  });
+  }, 30000);
 
   beforeEach(async () => {
     defaultKernel = await kernelManager.startNew();
@@ -51,6 +40,7 @@ describe('Kernel.IKernel', () => {
 
   afterAll(async () => {
     await kernelManager.shutdownAll();
+    await server.shutdown();
   });
 
   describe('#disposed', () => {
@@ -121,25 +111,6 @@ describe('Kernel.IKernel', () => {
       ).done;
       expect(called).toBe(true);
     });
-
-    it('should be a signal following input request without parent header', async () => {
-      let called = false;
-      defaultKernel.pendingInput.connect((sender, args) => {
-        if (!called) {
-          called = true;
-          defaultKernel.sendInputReply({ status: 'ok', value: 'foo' });
-        }
-      });
-      const code = `input("Input something")`;
-      await defaultKernel.requestExecute(
-        {
-          code: code,
-          allow_stdin: true
-        },
-        true
-      ).done;
-      expect(called).toBe(true);
-    });
   });
 
   describe('#iopubMessage', () => {
@@ -170,7 +141,7 @@ describe('Kernel.IKernel', () => {
       });
       tester.send(msg);
       await emission;
-      await tester.shutdown();
+      await expect(tester.shutdown()).resolves.not.toThrow();
       tester.dispose();
     });
   });
@@ -198,9 +169,9 @@ describe('Kernel.IKernel', () => {
         msgId,
         content: {}
       });
-      msg.parent_header = { session: kernel.clientId };
+      msg.parent_header = { session: kernel.clientId } as any;
       tester.send(msg);
-      await emission;
+      await expect(emission).resolves.not.toThrow();
     });
 
     it('should not be emitted for an iopub signal', async () => {
@@ -226,7 +197,7 @@ describe('Kernel.IKernel', () => {
         msgId,
         content: {}
       });
-      msg.parent_header = { session: kernel.clientId };
+      msg.parent_header = { session: kernel.clientId } as any;
       tester.send(msg);
 
       await emission;
@@ -256,7 +227,7 @@ describe('Kernel.IKernel', () => {
         msgId: 'message from wrong session',
         content: {}
       });
-      msg1.parent_header = { session: 'wrong session' };
+      msg1.parent_header = { session: 'wrong session' } as any;
       tester.send(msg1);
 
       // Send a shell message with the right client (parent) session.
@@ -267,7 +238,7 @@ describe('Kernel.IKernel', () => {
         msgId: msgId,
         content: {}
       });
-      msg2.parent_header = { session: kernel.clientId };
+      msg2.parent_header = { session: kernel.clientId } as any;
       tester.send(msg2);
 
       await emission;
@@ -303,7 +274,7 @@ describe('Kernel.IKernel', () => {
         msgId,
         content: {}
       });
-      msg.parent_header = { session: kernel.clientId };
+      msg.parent_header = { session: kernel.clientId } as any;
       tester.send(msg);
       await emission;
     });
@@ -393,7 +364,7 @@ describe('Kernel.IKernel', () => {
         find: () => defaultKernel.status === 'idle'
       });
       await defaultKernel.requestExecute({ code: 'a=1' }).done;
-      await emission;
+      await expect(emission).resolves.not.toThrow();
     });
 
     it('should get a restarting status', async () => {
@@ -404,17 +375,17 @@ describe('Kernel.IKernel', () => {
       });
       await kernel.requestKernelInfo();
       await kernel.restart();
-      await emission;
+      await expect(emission).resolves.not.toThrow();
       await kernel.requestKernelInfo();
       await kernel.shutdown();
-    });
+    }, 30000);
 
     it('should get a busy status', async () => {
       const emission = testEmission(defaultKernel.statusChanged, {
         find: () => defaultKernel.status === 'busy'
       });
       await defaultKernel.requestExecute({ code: 'a=1' }, true).done;
-      await emission;
+      await expect(emission).resolves.not.toThrow();
     });
 
     it('should get an unknown status while disconnected', async () => {
@@ -425,7 +396,7 @@ describe('Kernel.IKernel', () => {
       });
 
       await tester.close();
-      await emission;
+      await expect(emission).resolves.not.toThrow();
       tester.dispose();
     });
 
@@ -437,7 +408,7 @@ describe('Kernel.IKernel', () => {
         find: () => kernel.status === 'dead'
       });
       tester.sendStatus(UUID.uuid4(), 'dead');
-      await dead;
+      await expect(dead).resolves.not.toThrow();
       tester.dispose();
     });
   });
@@ -586,7 +557,7 @@ describe('Kernel.IKernel', () => {
       });
       expect(() => {
         kernel.sendShellMessage(msg, true);
-      }).toThrowError(/Kernel is dead/);
+      }).toThrow(/Kernel is dead/);
     });
 
     it('should handle out of order messages', async () => {
@@ -632,14 +603,14 @@ describe('Kernel.IKernel', () => {
           );
         };
       });
-      await future.done;
+      await expect(future.done).resolves.not.toThrow();
     });
   });
 
   describe('#interrupt()', () => {
     it('should interrupt and resolve with a valid server response', async () => {
       const kernel = await kernelManager.startNew();
-      await kernel.interrupt();
+      await expect(kernel.interrupt()).resolves.not.toThrow();
       await kernel.shutdown();
     });
 
@@ -649,13 +620,13 @@ describe('Kernel.IKernel', () => {
         name: defaultKernel.name
       });
       const interrupt = defaultKernel.interrupt();
-      await expectFailure(interrupt, 'Invalid response: 200 OK');
+      await expect(interrupt).rejects.toThrow(/Invalid response: 200 OK/);
     });
 
     it('should throw an error for an error response', async () => {
       handleRequest(defaultKernel, 500, {});
       const interrupt = defaultKernel.interrupt();
-      await expectFailure(interrupt, '');
+      await expect(interrupt).rejects.toThrow();
     });
 
     it('should fail if the kernel is dead', async () => {
@@ -668,7 +639,7 @@ describe('Kernel.IKernel', () => {
       });
       tester.sendStatus(UUID.uuid4(), 'dead');
       await dead;
-      await expectFailure(kernel.interrupt(), 'Kernel is dead');
+      await expect(kernel.interrupt()).rejects.toThrow(/Kernel is dead/);
       tester.dispose();
     });
   });
@@ -683,35 +654,34 @@ describe('Kernel.IKernel', () => {
       await kernel.info;
       await kernel.requestKernelInfo();
       await kernel.restart();
-      await kernel.requestKernelInfo();
+      await expect(kernel.requestKernelInfo()).resolves.not.toThrow();
       await kernel.shutdown();
     });
 
     it('should fail if the kernel does not restart', async () => {
       handleRequest(defaultKernel, 500, {});
       const restart = defaultKernel.restart();
-      await expectFailure(restart, '');
+      await expect(restart).rejects.toThrow();
     });
 
     it('should throw an error for an invalid response', async () => {
       const { id, name } = defaultKernel;
       handleRequest(defaultKernel, 205, { id, name });
-      await expectFailure(
-        defaultKernel.restart(),
-        'Invalid response: 205 Reset Content'
+      await expect(defaultKernel.restart()).rejects.toThrow(
+        /Invalid response: 205 Reset Content/
       );
     });
 
     it('should throw an error for an error response', async () => {
       handleRequest(defaultKernel, 500, {});
       const restart = defaultKernel.restart();
-      await expectFailure(restart);
+      await expect(restart).rejects.toThrow();
     });
 
     it('should throw an error for an invalid id', async () => {
       handleRequest(defaultKernel, 200, {});
       const restart = defaultKernel.restart();
-      await expectFailure(restart);
+      await expect(restart).rejects.toThrow();
     });
 
     it('should dispose of existing comm and future objects', async () => {
@@ -745,26 +715,20 @@ describe('Kernel.IKernel', () => {
         }
       });
       await defaultKernel.reconnect();
-      await emission;
+      await expect(emission).resolves.not.toThrow();
     });
 
     it('return promise should reject if the kernel is disposed or disconnected', async () => {
       const connection = defaultKernel.reconnect();
       defaultKernel.dispose();
-      try {
-        await connection;
-        // If the connection did not reject, so test fails.
-        throw new Error('Reconnection promise did not reject');
-      } catch (e) {
-        /* Connection promise reject - test passes */
-      }
+      await expect(connection).rejects.toThrow();
     });
   });
 
   describe('#shutdown()', () => {
     it('should shut down and resolve with a valid server response', async () => {
       const kernel = await kernelManager.startNew();
-      await kernel.shutdown();
+      await expect(kernel.shutdown()).resolves.not.toThrow();
     });
 
     it('should throw an error for an invalid response', async () => {
@@ -773,19 +737,19 @@ describe('Kernel.IKernel', () => {
         name: 'foo'
       });
       const shutdown = defaultKernel.shutdown();
-      await expectFailure(shutdown, 'Invalid response: 200 OK');
+      await expect(shutdown).rejects.toThrow(/Invalid response: 200 OK/);
     });
 
     it('should handle a 404 error', async () => {
       const kernel = await kernelManager.startNew();
       handleRequest(kernel, 404, {});
-      await kernel.shutdown();
+      await expect(kernel.shutdown()).resolves.not.toThrow();
     });
 
     it('should throw an error for an error response', async () => {
       handleRequest(defaultKernel, 500, {});
       const shutdown = defaultKernel.shutdown();
-      await expectFailure(shutdown, '');
+      await expect(shutdown).rejects.toThrow();
     });
 
     it('should still pass if the kernel is dead', async () => {
@@ -798,7 +762,7 @@ describe('Kernel.IKernel', () => {
       });
       tester.sendStatus(UUID.uuid4(), 'dead');
       await dead;
-      await kernel.shutdown();
+      await expect(kernel.shutdown()).resolves.not.toThrow();
       tester.dispose();
     });
   });
@@ -820,7 +784,9 @@ describe('Kernel.IKernel', () => {
         code: 'hello',
         cursor_pos: 4
       };
-      await defaultKernel.requestComplete(options);
+      await expect(
+        defaultKernel.requestComplete(options)
+      ).resolves.not.toThrow();
     });
 
     it('should reject the promise if the kernel is dead', async () => {
@@ -837,7 +803,9 @@ describe('Kernel.IKernel', () => {
       });
       tester.sendStatus(UUID.uuid4(), 'dead');
       await dead;
-      await expectFailure(kernel.requestComplete(options), 'Kernel is dead');
+      await expect(kernel.requestComplete(options)).rejects.toThrow(
+        /Kernel is dead/
+      );
       tester.dispose();
     });
   });
@@ -849,7 +817,9 @@ describe('Kernel.IKernel', () => {
         cursor_pos: 4,
         detail_level: 0
       };
-      await defaultKernel.requestInspect(options);
+      await expect(
+        defaultKernel.requestInspect(options)
+      ).resolves.not.toThrow();
     });
   });
 
@@ -858,7 +828,9 @@ describe('Kernel.IKernel', () => {
       const options: KernelMessage.IIsCompleteRequestMsg['content'] = {
         code: 'hello'
       };
-      await defaultKernel.requestIsComplete(options);
+      await expect(
+        defaultKernel.requestIsComplete(options)
+      ).resolves.not.toThrow();
     });
   });
 
@@ -872,7 +844,9 @@ describe('Kernel.IKernel', () => {
         start: 1,
         stop: 2
       };
-      await defaultKernel.requestHistory(options);
+      await expect(
+        defaultKernel.requestHistory(options)
+      ).resolves.not.toThrow();
     });
 
     it('tail messages should resolve the promise', async () => {
@@ -882,7 +856,9 @@ describe('Kernel.IKernel', () => {
         hist_access_type: 'tail',
         n: 1
       };
-      await defaultKernel.requestHistory(options);
+      await expect(
+        defaultKernel.requestHistory(options)
+      ).resolves.not.toThrow();
     });
 
     it('search messages should resolve the promise', async () => {
@@ -894,7 +870,9 @@ describe('Kernel.IKernel', () => {
         pattern: '*',
         unique: true
       };
-      await defaultKernel.requestHistory(options);
+      await expect(
+        defaultKernel.requestHistory(options)
+      ).resolves.not.toThrow();
     });
   });
 
@@ -945,7 +923,7 @@ describe('Kernel.IKernel', () => {
             version: ''
           }
         );
-      }).toThrowError(/Kernel is dead/);
+      }).toThrow(/Kernel is dead/);
       tester.dispose();
     });
   });
@@ -983,7 +961,8 @@ describe('Kernel.IKernel', () => {
               status: 'ok',
               user_expressions: {}
             },
-            parentHeader: msg.header as KernelMessage.IExecuteRequestMsg['header']
+            parentHeader:
+              msg.header as KernelMessage.IExecuteRequestMsg['header']
           })
         );
 
diff --git a/packages/services/test/kernel/kernel.spec.ts b/packages/services/test/kernel/kernel.spec.ts
index cd06cbfc3058..512d537be211 100644
--- a/packages/services/test/kernel/kernel.spec.ts
+++ b/packages/services/test/kernel/kernel.spec.ts
@@ -1,13 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  expectFailure,
-  flakyIt as it,
-  JupyterServer,
-  testEmission
-} from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer, testEmission } from '@jupyterlab/testing';
 import { UUID } from '@lumino/coreutils';
 import { KernelAPI } from '../../src';
 import {
@@ -21,18 +15,20 @@ const PYTHON3_SPEC = JSON.parse(JSON.stringify(PYTHON_SPEC));
 PYTHON3_SPEC.name = 'Python3';
 PYTHON3_SPEC.display_name = 'python3';
 
-const server = new JupyterServer();
+describe('kernel', () => {
+  let tester: KernelTester;
+  let server: JupyterServer;
 
-beforeAll(async () => {
-  await server.start();
-});
+  jest.retryTimes(3);
 
-afterAll(async () => {
-  await server.shutdown();
-});
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
+  }, 30000);
 
-describe('kernel', () => {
-  let tester: KernelTester;
+  afterAll(async () => {
+    await server.shutdown();
+  });
 
   afterEach(async () => {
     if (tester) {
@@ -45,7 +41,9 @@ describe('kernel', () => {
   describe('Kernel.listRunning()', () => {
     it('should yield a list of valid kernel ids', async () => {
       const kernel = await KernelAPI.startNew();
-      expect(toArray(await KernelAPI.listRunning()).length).toBeGreaterThan(0);
+      expect(Array.from(await KernelAPI.listRunning()).length).toBeGreaterThan(
+        0
+      );
       await KernelAPI.shutdownKernel(kernel.id);
     });
 
@@ -53,7 +51,7 @@ describe('kernel', () => {
       const serverSettings = makeSettings();
       const k = await KernelAPI.startNew({}, serverSettings);
       const response = await KernelAPI.listRunning(serverSettings);
-      expect(toArray(response).length).toBeGreaterThan(0);
+      expect(Array.from(response).length).toBeGreaterThan(0);
       await KernelAPI.shutdownKernel(k.id);
     });
 
@@ -61,19 +59,19 @@ describe('kernel', () => {
       const data = { id: UUID.uuid4(), name: 'test' };
       const settings = getRequestHandler(200, data);
       const promise = KernelAPI.listRunning(settings);
-      await expectFailure(promise, 'Invalid kernel list');
+      await expect(promise).rejects.toThrow(/Invalid kernel list/);
     });
 
     it('should throw an error for an invalid response', async () => {
       const settings = getRequestHandler(201, {});
       const promise = KernelAPI.listRunning(settings);
-      await expectFailure(promise, 'Invalid response: 201 Created');
+      await expect(promise).rejects.toThrow(/Invalid response: 201 Created/);
     });
 
     it('should throw an error for an error response', async () => {
       const settings = getRequestHandler(500, {});
       const promise = KernelAPI.listRunning(settings);
-      await expectFailure(promise, '');
+      await expect(promise).rejects.toThrow();
     });
   });
 
@@ -81,7 +79,7 @@ describe('kernel', () => {
     it('should accept ajax options', async () => {
       const serverSettings = makeSettings();
       const k = await KernelAPI.startNew({}, serverSettings);
-      await KernelAPI.shutdownKernel(k.id);
+      await expect(KernelAPI.shutdownKernel(k.id)).resolves.not.toThrow();
     });
 
     it('should still construct connection if the kernel dies', async () => {
@@ -102,7 +100,7 @@ describe('kernel', () => {
     it('should throw an error for an invalid kernel id', async () => {
       const serverSettings = getRequestHandler(201, { id: UUID.uuid4() });
       const kernelPromise = KernelAPI.startNew({}, serverSettings);
-      await expectFailure(kernelPromise);
+      await expect(kernelPromise).rejects.toThrow();
     });
 
     it('should throw an error for another invalid kernel id', async () => {
@@ -111,20 +109,20 @@ describe('kernel', () => {
         name: 1
       });
       const kernelPromise = KernelAPI.startNew({}, serverSettings);
-      await expectFailure(kernelPromise);
+      await expect(kernelPromise).rejects.toThrow();
     });
 
     it('should throw an error for an invalid response', async () => {
       const data = { id: UUID.uuid4(), name: 'foo' };
       const serverSettings = getRequestHandler(200, data);
       const kernelPromise = KernelAPI.startNew({}, serverSettings);
-      await expectFailure(kernelPromise, 'Invalid response: 200 OK');
+      await expect(kernelPromise).rejects.toThrow(/Invalid response: 200 OK/);
     });
 
     it('should throw an error for an error response', async () => {
       const serverSettings = getRequestHandler(500, {});
       const kernelPromise = KernelAPI.startNew({}, serverSettings);
-      await expectFailure(kernelPromise, '');
+      await expect(kernelPromise).rejects.toThrow();
     });
 
     it('should auto-reconnect on websocket error', async () => {
@@ -136,7 +134,7 @@ describe('kernel', () => {
         find: (k, status) => status === 'connecting'
       });
       await tester.close();
-      await emission;
+      await expect(emission).resolves.not.toThrow();
     });
   });
 
@@ -148,8 +146,10 @@ describe('kernel', () => {
       expect(kernels.find(k => k.id === kernel.id)).toBeUndefined();
     });
 
-    it('should handle a 404 error', () => {
-      return KernelAPI.shutdownKernel(UUID.uuid4());
+    it('should handle a 404 error', async () => {
+      await expect(
+        KernelAPI.shutdownKernel(UUID.uuid4())
+      ).resolves.not.toThrow();
     });
   });
 });
diff --git a/packages/services/test/kernel/manager.spec.ts b/packages/services/test/kernel/manager.spec.ts
index 271a822a9419..29256de57941 100644
--- a/packages/services/test/kernel/manager.spec.ts
+++ b/packages/services/test/kernel/manager.spec.ts
@@ -1,50 +1,43 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  flakyIt as it,
-  JupyterServer,
-  sleep,
-  testEmission
-} from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer, sleep, testEmission } from '@jupyterlab/testing';
 import { Kernel, KernelAPI, KernelManager } from '../../src';
 import { makeSettings } from '../utils';
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('kernel/manager', () => {
-  let manager: KernelManager;
   let kernel: Kernel.IModel;
+  let server: JupyterServer;
+
+  jest.retryTimes(3);
 
   beforeAll(async () => {
-    jest.setTimeout(20000);
+    server = new JupyterServer();
+    await server.start();
     kernel = await KernelAPI.startNew();
-  });
-
-  beforeEach(() => {
-    manager = new KernelManager({ standby: 'never' });
-    return manager.ready;
-  });
-
-  afterEach(() => {
-    manager.dispose();
-  });
+  }, 30000);
 
   afterAll(async () => {
-    const models = await KernelAPI.listRunning();
-    await Promise.all(models.map(m => KernelAPI.shutdownKernel(m.id)));
+    await server.shutdown();
   });
 
   describe('KernelManager', () => {
+    let manager: KernelManager;
+
+    beforeEach(() => {
+      manager = new KernelManager({ standby: 'never' });
+      return manager.ready;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
+    afterAll(async () => {
+      const models = await KernelAPI.listRunning();
+      await Promise.all(models.map(m => KernelAPI.shutdownKernel(m.id)));
+    });
+
     describe('#constructor()', () => {
       it('should take the options as an argument', async () => {
         manager.dispose();
@@ -72,7 +65,7 @@ describe('kernel/manager', () => {
     describe('#running()', () => {
       it('should get the running sessions', async () => {
         await manager.refreshRunning();
-        expect(toArray(manager.running()).length).toBeGreaterThan(0);
+        expect(Array.from(manager.running()).length).toBeGreaterThan(0);
       });
     });
     describe('#runningChanged', () => {
@@ -80,7 +73,7 @@ describe('kernel/manager', () => {
         let called = false;
         manager.runningChanged.connect((sender, args) => {
           expect(sender).toBe(manager);
-          expect(toArray(args).length).toBeGreaterThan(0);
+          expect(Array.from(args).length).toBeGreaterThan(0);
           called = true;
         });
         await KernelAPI.startNew();
@@ -112,28 +105,28 @@ describe('kernel/manager', () => {
     });
 
     describe('#ready', () => {
-      it('should resolve when the manager is ready', () => {
-        return manager.ready;
+      it('should resolve when the manager is ready', async () => {
+        await expect(manager.ready).resolves.not.toThrow();
       });
     });
 
     describe('#refreshRunning()', () => {
       it('should update the running kernels', async () => {
         await manager.refreshRunning();
-        expect(toArray(manager.running()).length).toBeGreaterThan(0);
+        expect(Array.from(manager.running()).length).toBeGreaterThan(0);
       });
 
       it('should update the running kernels when one is shut down', async () => {
-        const old = toArray(manager.running()).length;
+        const old = Array.from(manager.running()).length;
         await KernelAPI.startNew();
         await manager.refreshRunning();
-        expect(toArray(manager.running()).length).toBeGreaterThan(old);
+        expect(Array.from(manager.running()).length).toBeGreaterThan(old);
       });
     });
 
     describe('#startNew()', () => {
-      it('should start a new kernel', () => {
-        return manager.startNew();
+      it('should start a new kernel', async () => {
+        await expect(manager.startNew()).resolves.not.toThrow();
       });
 
       it('should emit a runningChanged signal', async () => {
@@ -200,4 +193,75 @@ describe('kernel/manager', () => {
       });
     });
   });
+
+  describe('NoopManager', () => {
+    let manager: KernelManager.NoopManager;
+
+    beforeEach(async () => {
+      manager = new KernelManager.NoopManager({ standby: 'never' });
+      await manager.parentReady;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should take the options as an argument', async () => {
+        manager.dispose();
+        manager = new KernelManager.NoopManager({
+          serverSettings: makeSettings(),
+          standby: 'never'
+        });
+        await manager.parentReady;
+        expect(manager instanceof KernelManager.NoopManager).toBe(true);
+      });
+    });
+
+    describe('#serverSettings', () => {
+      it('should get the server settings', async () => {
+        manager.dispose();
+        const serverSettings = makeSettings();
+        const standby = 'never';
+        const token = serverSettings.token;
+        manager = new KernelManager.NoopManager({ serverSettings, standby });
+        await manager.parentReady;
+        expect(manager.serverSettings.token).toBe(token);
+      });
+    });
+
+    describe('#running()', () => {
+      it('should get the running sessions', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#refreshRunning()', () => {
+      it('should update the running kernels', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#startNew()', () => {
+      it('should throw an error', () => {
+        return expect(manager.startNew()).rejects.toThrow();
+      });
+    });
+
+    describe('#connectTo()', () => {
+      it('should throw an error', () => {
+        return expect(() => {
+          manager.connectTo({ model: kernel });
+        }).toThrow();
+      });
+    });
+
+    describe('shutdown()', () => {
+      it('should throw an error', () => {
+        return expect(manager.shutdown(kernel.id)).rejects.toThrow();
+      });
+    });
+  });
 });
diff --git a/packages/services/test/kernel/validate.spec.ts b/packages/services/test/kernel/validate.spec.ts
index 57786336b518..0545a80e5a08 100644
--- a/packages/services/test/kernel/validate.spec.ts
+++ b/packages/services/test/kernel/validate.spec.ts
@@ -13,7 +13,9 @@ describe('kernel/validate', () => {
         session: 'foo',
         content: { comm_id: 'foo', data: {} }
       });
-      validateMessage(msg);
+      expect(() => {
+        validateMessage(msg);
+      }).not.toThrow();
     });
 
     it('should throw if missing a field', () => {
@@ -24,7 +26,7 @@ describe('kernel/validate', () => {
         content: { comm_id: 'foo', data: {} }
       });
       delete (msg as any).channel;
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should throw if a field is invalid', () => {
@@ -35,7 +37,7 @@ describe('kernel/validate', () => {
         content: { comm_id: 'foo', data: {} }
       });
       (msg as any).header.username = 1;
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should throw if the parent header is given an invalid', () => {
@@ -47,7 +49,7 @@ describe('kernel/validate', () => {
       });
       msg.parent_header = msg.header;
       (msg as any).parent_header.username = 1;
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should throw if the channel is not a string', () => {
@@ -58,7 +60,7 @@ describe('kernel/validate', () => {
         content: { comm_id: 'foo', data: {} }
       });
       (msg as any).channel = 1;
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should validate an iopub message', () => {
@@ -68,7 +70,9 @@ describe('kernel/validate', () => {
         session: 'baz',
         content: { comm_id: 'foo', data: {} }
       });
-      validateMessage(msg);
+      expect(() => {
+        validateMessage(msg);
+      }).not.toThrow();
     });
 
     it('should ignore on an unknown iopub message type', () => {
@@ -78,7 +82,9 @@ describe('kernel/validate', () => {
         session: 'baz',
         content: {}
       } as any);
-      validateMessage(msg);
+      expect(() => {
+        validateMessage(msg);
+      }).not.toThrow();
     });
 
     it('should throw on missing iopub message content', () => {
@@ -88,7 +94,7 @@ describe('kernel/validate', () => {
         session: 'baz',
         content: {} as any
       } as any);
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should throw on invalid iopub message content', () => {
@@ -98,7 +104,7 @@ describe('kernel/validate', () => {
         session: 'baz',
         content: { wait: 1 as any }
       });
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should throw on invalid iopub status message content', () => {
@@ -108,7 +114,7 @@ describe('kernel/validate', () => {
         session: 'baz',
         content: { execution_state: 'invalid-status' as Kernel.Status }
       });
-      expect(() => validateMessage(msg)).toThrowError();
+      expect(() => validateMessage(msg)).toThrow();
     });
 
     it('should handle no buffers field', () => {
@@ -119,14 +125,18 @@ describe('kernel/validate', () => {
         content: { comm_id: 'foo', data: {} }
       });
       delete msg['buffers'];
-      validateMessage(msg);
+      expect(() => {
+        validateMessage(msg);
+      }).not.toThrow();
     });
   });
 
   describe('#validateModel()', () => {
     it('should pass a valid id', () => {
       const id: Kernel.IModel = { name: 'foo', id: 'baz' };
-      validateModel(id);
+      expect(() => {
+        validateModel(id);
+      }).not.toThrow();
     });
   });
 });
diff --git a/packages/services/test/kernelspec/kernelspec.spec.ts b/packages/services/test/kernelspec/kernelspec.spec.ts
index 6ba7fff0e21d..e52a2b8795ea 100644
--- a/packages/services/test/kernelspec/kernelspec.spec.ts
+++ b/packages/services/test/kernelspec/kernelspec.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { expectFailure, JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { KernelSpecAPI } from '../../src';
 import { getRequestHandler, makeSettings, PYTHON_SPEC } from '../utils';
 
@@ -13,7 +13,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -45,7 +45,7 @@ describe('kernel', () => {
         default: PYTHON_SPEC.name
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No kernelspecs found');
+      await expect(promise).rejects.toThrow(/No kernelspecs found/);
     });
 
     it('should omit an invalid kernelspec', async () => {
@@ -71,7 +71,7 @@ describe('kernel', () => {
         kernelspecs: { R: R_SPEC }
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No valid kernelspecs found');
+      await expect(promise).rejects.toThrow(/No valid kernelspecs found/);
     });
 
     it('should handle an improper language', async () => {
@@ -82,7 +82,7 @@ describe('kernel', () => {
         kernelspecs: { R: R_SPEC }
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No valid kernelspecs found');
+      await expect(promise).rejects.toThrow(/No valid kernelspecs found/);
     });
 
     it('should handle an improper argv', async () => {
@@ -93,7 +93,7 @@ describe('kernel', () => {
         kernelspecs: { R: R_SPEC }
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No valid kernelspecs found');
+      await expect(promise).rejects.toThrow(/No valid kernelspecs found/);
     });
 
     it('should handle an improper display_name', async () => {
@@ -104,7 +104,7 @@ describe('kernel', () => {
         kernelspecs: { R: R_SPEC }
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No valid kernelspecs found');
+      await expect(promise).rejects.toThrow(/No valid kernelspecs found/);
     });
 
     it('should handle missing resources', async () => {
@@ -115,17 +115,18 @@ describe('kernel', () => {
         kernelspecs: { R: R_SPEC }
       });
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'No valid kernelspecs found');
+      await expect(promise).rejects.toThrow(/No valid kernelspecs found/);
     });
 
     it('should throw an error for an invalid response', async () => {
       const serverSettings = getRequestHandler(201, {});
       const promise = KernelSpecAPI.getSpecs(serverSettings);
-      await expectFailure(promise, 'Invalid response: 201 Created');
+      await expect(promise).rejects.toThrow(/Invalid response: 201 Created/);
     });
 
     it('should handle metadata', async () => {
       const PYTHON_SPEC_W_MD = JSON.parse(JSON.stringify(PYTHON_SPEC));
+      // eslint-disable-next-line camelcase
       PYTHON_SPEC_W_MD.spec.metadata = { some_application: { key: 'value' } };
       const serverSettings = getRequestHandler(200, {
         default: 'python',
diff --git a/packages/services/test/kernelspec/manager.spec.ts b/packages/services/test/kernelspec/manager.spec.ts
index b60c5cd55548..8d9d8320138b 100644
--- a/packages/services/test/kernelspec/manager.spec.ts
+++ b/packages/services/test/kernelspec/manager.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { JSONExt } from '@lumino/coreutils';
 import { KernelSpec, KernelSpecManager } from '../../src';
 import {
@@ -29,7 +29,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -106,8 +106,8 @@ describe('kernel/manager', () => {
     });
 
     describe('#ready', () => {
-      it('should resolve when the manager is ready', () => {
-        return manager.ready;
+      it('should resolve when the manager is ready', async () => {
+        await expect(manager.ready).resolves.not.toThrow();
       });
     });
 
diff --git a/packages/services/test/kernelspec/validate.spec.ts b/packages/services/test/kernelspec/validate.spec.ts
index aae22d031e13..293d109135f8 100644
--- a/packages/services/test/kernelspec/validate.spec.ts
+++ b/packages/services/test/kernelspec/validate.spec.ts
@@ -11,19 +11,21 @@ import { PYTHON_SPEC } from '../utils';
 describe('kernelspec/validate', () => {
   describe('#validateSpecModel', () => {
     it('should pass with valid data', () => {
-      validateSpecModel(PYTHON_SPEC);
+      expect(() => {
+        validateSpecModel(PYTHON_SPEC);
+      }).not.toThrow();
     });
 
     it('should fail on missing data', () => {
       const spec = JSON.parse(JSON.stringify(PYTHON_SPEC));
       delete spec['name'];
-      expect(() => validateSpecModel(spec)).toThrowError();
+      expect(() => validateSpecModel(spec)).toThrow();
     });
 
     it('should fail on incorrect data', () => {
       const spec = JSON.parse(JSON.stringify(PYTHON_SPEC));
       spec.spec.language = 1;
-      expect(() => validateSpecModel(spec)).toThrowError();
+      expect(() => validateSpecModel(spec)).toThrow();
     });
   });
 
@@ -35,14 +37,16 @@ describe('kernelspec/validate', () => {
           python: PYTHON_SPEC
         }
       };
-      validateSpecModels(model);
+      expect(() => {
+        validateSpecModels(model);
+      }).not.toThrow();
     });
 
     it('should fail on missing data', () => {
       const model: any = {
         default: 'python'
       };
-      expect(() => validateSpecModels(model)).toThrowError();
+      expect(() => validateSpecModels(model)).toThrow();
     });
   });
 });
diff --git a/packages/services/test/manager.spec.ts b/packages/services/test/manager.spec.ts
index 0659a9a29693..f1be5f5de031 100644
--- a/packages/services/test/manager.spec.ts
+++ b/packages/services/test/manager.spec.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import {
   ContentsManager,
   ServiceManager,
@@ -15,7 +15,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/testutils/test/mock.spec.ts b/packages/services/test/mock.spec.ts
similarity index 76%
rename from testutils/test/mock.spec.ts
rename to packages/services/test/mock.spec.ts
index 681c8e6fc462..c9885f2efb72 100644
--- a/testutils/test/mock.spec.ts
+++ b/packages/services/test/mock.spec.ts
@@ -1,70 +1,10 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import * as Mock from '../src/mock';
+import * as Mock from '@jupyterlab/services/lib/testutils';
 import { KernelMessage } from '@jupyterlab/services';
-import { toArray } from '@lumino/algorithm';
 
 describe('mock', () => {
-  describe('createSimpleSessionContext()', () => {
-    it('should create a session context', () => {
-      const context = Mock.createSimpleSessionContext();
-      expect(context.session!.kernel!.name).toEqual(Mock.DEFAULT_NAME);
-    });
-
-    it('should accept a session model', () => {
-      const context = Mock.createSimpleSessionContext({
-        name: 'hi',
-        path: 'foo',
-        type: 'bar',
-        kernel: { name: 'fizz' }
-      });
-      expect(context.name).toEqual('hi');
-      expect(context.path).toEqual('foo');
-      expect(context.type).toEqual('bar');
-      expect(context.session!.kernel!.name).toEqual('fizz');
-    });
-  });
-
-  describe('updateKernelStatus()', () => {
-    it('should update the kernel status', () => {
-      const context = Mock.createSimpleSessionContext();
-      let called = false;
-      context.statusChanged.connect((_, status) => {
-        if (status === 'dead') {
-          called = true;
-        }
-      });
-      Mock.updateKernelStatus(context, 'dead');
-      expect(context.session!.kernel!.status).toEqual('dead');
-      expect(called).toEqual(true);
-    });
-  });
-
-  describe('emitIopubMessage', () => {
-    it('should emit an iopub message', () => {
-      const context = Mock.createSimpleSessionContext();
-      const source = KernelMessage.createMessage({
-        channel: 'iopub',
-        msgType: 'execute_input',
-        session: 'foo',
-        username: 'bar',
-        msgId: 'fizz',
-        content: {
-          code: 'hello, world!',
-          execution_count: 0
-        }
-      });
-      let called = false;
-      context.iopubMessage.connect((_, msg) => {
-        expect(msg).toBe(source);
-        called = true;
-      });
-      Mock.emitIopubMessage(context, source);
-      expect(called).toBe(true);
-    });
-  });
-
   describe('cloneKernel()', () => {
     it('should clone a kernel', () => {
       const kernel0 = new Mock.KernelMock({});
@@ -98,7 +38,9 @@ describe('mock', () => {
     describe('.dispose()', () => {
       it('should be a no-op', () => {
         const kernel = new Mock.KernelMock({});
-        kernel.dispose();
+        expect(() => {
+          kernel.dispose();
+        }).not.toThrow();
       });
     });
 
@@ -122,7 +64,7 @@ describe('mock', () => {
     describe('.shutdown()', () => {
       it('should be a no-op', async () => {
         const kernel = new Mock.KernelMock({});
-        await kernel.shutdown();
+        await expect(kernel.shutdown()).resolves.not.toThrow();
       });
     });
 
@@ -137,7 +79,7 @@ describe('mock', () => {
     describe('.restart()', () => {
       it('should be a no-op', async () => {
         const kernel = new Mock.KernelMock({});
-        await kernel.restart();
+        await expect(kernel.restart()).resolves.not.toThrow();
       });
     });
 
@@ -178,7 +120,9 @@ describe('mock', () => {
     describe('.dispose()', () => {
       it('should be a no-op', () => {
         const session = new Mock.SessionConnectionMock({}, null);
-        session.dispose();
+        expect(() => {
+          session.dispose();
+        }).not.toThrow();
       });
     });
 
@@ -194,7 +138,7 @@ describe('mock', () => {
     describe('.shutdown()', () => {
       it('should be a no-op', async () => {
         const session = new Mock.SessionConnectionMock({}, null);
-        await session.shutdown();
+        await expect(session.shutdown()).resolves.not.toThrow();
       });
     });
 
@@ -244,59 +188,6 @@ describe('mock', () => {
     });
   });
 
-  describe('SessionContextMock', () => {
-    describe('.constructor()', () => {
-      it('should create a new context', () => {
-        const context = new Mock.SessionContextMock({}, null);
-        expect(context.session!.kernel!.name).toBe(Mock.DEFAULT_NAME);
-      });
-
-      it('should accept options', () => {
-        const session = new Mock.SessionConnectionMock({}, null);
-        const context = new Mock.SessionContextMock({ path: 'foo' }, session);
-        expect(context.session).toBe(session);
-        expect(context.path).toBe('foo');
-      });
-    });
-
-    describe('.dispose()', () => {
-      it('should be a no-op', () => {
-        const context = new Mock.SessionContextMock({}, null);
-        context.dispose();
-      });
-    });
-
-    describe('.initialize()', () => {
-      it('should be a no-op', async () => {
-        const context = new Mock.SessionContextMock({}, null);
-        await context.initialize();
-      });
-    });
-
-    describe('.ready', () => {
-      it('should be a no-op', async () => {
-        const context = new Mock.SessionContextMock({}, null);
-        await context.ready;
-      });
-    });
-
-    describe('.changeKernel()', () => {
-      it('should change the kernel', async () => {
-        const context = new Mock.SessionContextMock({}, null);
-        const oldId = context.session!.kernel!.id;
-        const kernel = await context.changeKernel({ name: Mock.DEFAULT_NAME });
-        expect(kernel!.id).not.toBe(oldId);
-      });
-    });
-
-    describe('.shutdown()', () => {
-      it('should be a no-op', async () => {
-        const context = new Mock.SessionContextMock({}, null);
-        await context.shutdown();
-      });
-    });
-  });
-
   describe('ContentsManagerMock', () => {
     describe('.constructor()', () => {
       it('should create a new mock', () => {
@@ -369,13 +260,6 @@ describe('mock', () => {
       });
     });
 
-    describe('.getModelDBFactory()', () => {
-      it('should return null', () => {
-        const manager = new Mock.ContentsManagerMock();
-        expect(manager.getModelDBFactory('foo')).toBe(null);
-      });
-    });
-
     describe('.normalize()', () => {
       it('should normalize a path', () => {
         const manager = new Mock.ContentsManagerMock();
@@ -463,7 +347,9 @@ describe('mock', () => {
     describe('.dispose()', () => {
       it('should be a no-op', () => {
         const manager = new Mock.ContentsManagerMock();
-        manager.dispose();
+        expect(() => {
+          manager.dispose();
+        }).not.toThrow();
       });
     });
   });
@@ -514,16 +400,16 @@ describe('mock', () => {
           type: 'bar',
           kernel: { name: Mock.DEFAULT_NAME }
         });
-        expect(toArray(manager.running()).length).toBe(1);
+        expect(Array.from(manager.running()).length).toBe(1);
         await manager.stopIfNeeded(session.path);
-        expect(toArray(manager.running()).length).toBe(0);
+        expect(Array.from(manager.running()).length).toBe(0);
       });
     });
 
     describe('.refreshRunning()', () => {
       it('should be a no-op', async () => {
         const manager = new Mock.SessionManagerMock();
-        await manager.refreshRunning();
+        await expect(manager.refreshRunning()).resolves.not.toThrow();
       });
     });
 
@@ -536,7 +422,7 @@ describe('mock', () => {
           type: 'bar',
           kernel: { name: Mock.DEFAULT_NAME }
         });
-        expect(toArray(manager.running()).length).toBe(1);
+        expect(Array.from(manager.running()).length).toBe(1);
       });
     });
   });
@@ -559,7 +445,7 @@ describe('mock', () => {
     describe('.refreshSpecs()', () => {
       it('should be a no-op', async () => {
         const manager = new Mock.KernelSpecManagerMock();
-        await manager.refreshSpecs();
+        await expect(manager.refreshSpecs()).resolves.not.toThrow();
       });
     });
   });
@@ -575,7 +461,7 @@ describe('mock', () => {
     describe('.ready', () => {
       it('should resolve', async () => {
         const manager = new Mock.ServiceManagerMock();
-        await manager.ready;
+        await expect(manager.ready).resolves.not.toThrow();
       });
     });
 
@@ -603,7 +489,9 @@ describe('mock', () => {
     describe('.dispose()', () => {
       it('should be a no-op', () => {
         const manager = new Mock.ServiceManagerMock();
-        manager.dispose();
+        expect(() => {
+          manager.dispose();
+        }).not.toThrow();
       });
     });
   });
@@ -628,18 +516,4 @@ describe('mock', () => {
       future.dispose();
     });
   });
-
-  describe('createFileContext()', () => {
-    it('should create a context without a kernel', async () => {
-      const context = await Mock.createFileContext();
-      expect(context.sessionContext.session).toBe(null);
-    });
-
-    it('should create a context with a kernel', async () => {
-      const context = await Mock.createFileContext(true);
-      expect(context.sessionContext.session!.kernel!.name).toBe(
-        Mock.DEFAULT_NAME
-      );
-    });
-  });
 });
diff --git a/packages/services/test/serverconnection.spec.ts b/packages/services/test/serverconnection.spec.ts
index c44205a06f15..39a8626e7c04 100644
--- a/packages/services/test/serverconnection.spec.ts
+++ b/packages/services/test/serverconnection.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { PageConfig } from '@jupyterlab/coreutils';
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { ServerConnection } from '../src';
 import { getRequestHandler } from './utils';
 
@@ -10,7 +10,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/packages/services/test/session/isession.spec.ts b/packages/services/test/session/isession.spec.ts
index 3f69ac52c018..f5d786b8d575 100644
--- a/packages/services/test/session/isession.spec.ts
+++ b/packages/services/test/session/isession.spec.ts
@@ -2,12 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { PageConfig } from '@jupyterlab/coreutils';
-import {
-  expectFailure,
-  flakyIt as it,
-  JupyterServer,
-  testEmission
-} from '@jupyterlab/testutils';
+import { JupyterServer, sleep, testEmission } from '@jupyterlab/testing';
 import { UUID } from '@lumino/coreutils';
 import { Signal } from '@lumino/signaling';
 import {
@@ -34,26 +29,20 @@ async function startNew(): Promise<Session.ISessionConnection> {
   return session;
 }
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-  kernelManager = new KernelManager();
-  sessionManager = new SessionManager({ kernelManager });
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('session', () => {
   let session: Session.ISessionConnection;
   let defaultSession: Session.ISessionConnection;
+  let server: JupyterServer;
+
+  jest.retryTimes(3);
 
   beforeAll(async () => {
-    jest.setTimeout(20000);
+    server = new JupyterServer();
+    await server.start();
+    kernelManager = new KernelManager();
+    sessionManager = new SessionManager({ kernelManager });
     defaultSession = await startNew();
-  });
+  }, 30000);
 
   afterEach(async () => {
     if (session && !session.isDisposed) {
@@ -63,6 +52,7 @@ describe('session', () => {
 
   afterAll(async () => {
     await defaultSession.shutdown();
+    await server.shutdown();
   });
 
   describe('Session.DefaultSession', () => {
@@ -83,7 +73,10 @@ describe('session', () => {
       it('should emit when the kernel changes', async () => {
         let called: Session.ISessionConnection.IKernelChangedArgs | null = null;
         const object = {};
-        await defaultSession.kernel?.requestKernelInfo();
+        while (defaultSession.kernel!.connectionStatus !== 'connected') {
+          await sleep(100);
+        }
+        await defaultSession.kernel!.requestKernelInfo();
         defaultSession.kernelChanged.connect((s, args) => {
           called = args;
           Signal.disconnectReceiver(object);
@@ -109,6 +102,9 @@ describe('session', () => {
             called = true;
           }
         });
+        while (defaultSession.kernel!.connectionStatus !== 'connected') {
+          await sleep(100);
+        }
         await defaultSession.kernel!.requestKernelInfo();
         expect(called).toBe(true);
       });
@@ -128,8 +124,17 @@ describe('session', () => {
     });
 
     describe('#unhandledMessage', () => {
+      let tester: SessionTester;
+
+      beforeEach(() => {
+        tester = new SessionTester();
+      });
+
+      afterEach(() => {
+        tester.dispose();
+      });
+
       it('should be emitted for an unhandled message', async () => {
-        const tester = new SessionTester();
         const session = await tester.startSession();
         const msgId = UUID.uuid4();
         const emission = testEmission(session.unhandledMessage, {
@@ -142,11 +147,10 @@ describe('session', () => {
           msgId,
           content: {}
         });
-        msg.parent_header = { session: session.kernel!.clientId };
+        msg.parent_header = { session: session.kernel!.clientId } as any;
         tester.send(msg);
         await emission;
-        await tester.shutdown();
-        tester.dispose();
+        await expect(tester.shutdown()).resolves.not.toThrow();
       });
     });
 
@@ -264,17 +268,17 @@ describe('session', () => {
 
       it('should fail for improper response status', async () => {
         handleRequest(defaultSession, 201, {});
-        await expectFailure(defaultSession.setPath(UUID.uuid4()));
+        await expect(defaultSession.setPath(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for error response status', async () => {
         handleRequest(defaultSession, 500, {});
-        await expectFailure(defaultSession.setPath(UUID.uuid4()), '');
+        await expect(defaultSession.setPath(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for improper model', async () => {
         handleRequest(defaultSession, 200, {});
-        await expectFailure(defaultSession.setPath(UUID.uuid4()));
+        await expect(defaultSession.setPath(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail if the session is disposed', async () => {
@@ -283,7 +287,7 @@ describe('session', () => {
         });
         session.dispose();
         const promise = session.setPath(UUID.uuid4());
-        await expectFailure(promise, 'Session is disposed');
+        await expect(promise).rejects.toThrow(/Session is disposed/);
       });
     });
 
@@ -298,17 +302,17 @@ describe('session', () => {
 
       it('should fail for improper response status', async () => {
         handleRequest(defaultSession, 201, {});
-        await expectFailure(defaultSession.setType(UUID.uuid4()));
+        await expect(defaultSession.setType(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for error response status', async () => {
         handleRequest(defaultSession, 500, {});
-        await expectFailure(defaultSession.setType(UUID.uuid4()), '');
+        await expect(defaultSession.setType(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for improper model', async () => {
         handleRequest(defaultSession, 200, {});
-        await expectFailure(defaultSession.setType(UUID.uuid4()));
+        await expect(defaultSession.setType(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail if the session is disposed', async () => {
@@ -317,7 +321,7 @@ describe('session', () => {
         });
         session.dispose();
         const promise = session.setPath(UUID.uuid4());
-        await expectFailure(promise, 'Session is disposed');
+        await expect(promise).rejects.toThrow(/Session is disposed/);
       });
     });
 
@@ -330,17 +334,17 @@ describe('session', () => {
 
       it('should fail for improper response status', async () => {
         handleRequest(defaultSession, 201, {});
-        await expectFailure(defaultSession.setName(UUID.uuid4()));
+        await expect(defaultSession.setName(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for error response status', async () => {
         handleRequest(defaultSession, 500, {});
-        await expectFailure(defaultSession.setName(UUID.uuid4()), '');
+        await expect(defaultSession.setName(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail for improper model', async () => {
         handleRequest(defaultSession, 200, {});
-        await expectFailure(defaultSession.setName(UUID.uuid4()));
+        await expect(defaultSession.setName(UUID.uuid4())).rejects.toThrow();
       });
 
       it('should fail if the session is disposed', async () => {
@@ -349,7 +353,7 @@ describe('session', () => {
         });
         session.dispose();
         const promise = session.setPath(UUID.uuid4());
-        await expectFailure(promise, 'Session is disposed');
+        await expect(promise).rejects.toThrow(/Session is disposed/);
       });
     });
 
@@ -394,7 +398,7 @@ describe('session', () => {
     describe('#shutdown()', () => {
       it('should shut down properly', async () => {
         session = await startNew();
-        await session.shutdown();
+        await expect(session.shutdown()).resolves.not.toThrow();
       });
 
       it('should emit a disposed signal', async () => {
@@ -409,13 +413,13 @@ describe('session', () => {
 
       it('should fail for an incorrect response status', async () => {
         handleRequest(defaultSession, 200, {});
-        await expectFailure(defaultSession.shutdown());
+        await expect(defaultSession.shutdown()).rejects.toThrow();
       });
 
       it('should handle a 404 status', async () => {
         session = await startNew();
         handleRequest(session, 404, {});
-        await session.shutdown();
+        await expect(session.shutdown()).resolves.not.toThrow();
       });
 
       it('should handle a specific error status', async () => {
@@ -428,7 +432,7 @@ describe('session', () => {
 
       it('should fail for an error response status', async () => {
         handleRequest(defaultSession, 500, {});
-        await expectFailure(defaultSession.shutdown(), '');
+        await expect(defaultSession.shutdown()).rejects.toThrow();
       });
 
       it('should fail if the session is disposed', async () => {
@@ -436,7 +440,7 @@ describe('session', () => {
           model: defaultSession.model
         });
         session.dispose();
-        await expectFailure(session.shutdown(), 'Session is disposed');
+        await expect(session.shutdown()).rejects.toThrow(/Session is disposed/);
       });
     });
   });
diff --git a/packages/services/test/session/manager.spec.ts b/packages/services/test/session/manager.spec.ts
index 07f958ebadfe..6add86dcaa55 100644
--- a/packages/services/test/session/manager.spec.ts
+++ b/packages/services/test/session/manager.spec.ts
@@ -1,12 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  flakyIt as it,
-  JupyterServer,
-  testEmission
-} from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer, testEmission } from '@jupyterlab/testing';
 import { UUID } from '@lumino/coreutils';
 import {
   KernelManager,
@@ -30,43 +25,39 @@ async function startNew(
   return session;
 }
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('session/manager', () => {
-  let kernelManager: KernelManager;
-  let manager: SessionManager;
-  let session: Session.ISessionConnection;
-
-  beforeAll(() => {
-    jest.setTimeout(20000);
-    kernelManager = new KernelManager({ standby: 'never' });
-  });
+  let server: JupyterServer;
+  jest.setTimeout(20000);
+  jest.retryTimes(3);
 
-  beforeEach(async () => {
-    manager = new SessionManager({ kernelManager, standby: 'never' });
-    await manager.ready;
-    session = await startNew(manager);
-    await session.kernel!.info;
-  });
-
-  afterEach(() => {
-    manager.dispose();
-  });
+  beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
+  }, 30000);
 
   afterAll(async () => {
     const sessions = await SessionAPI.listRunning();
     await Promise.all(sessions.map(s => SessionAPI.shutdownSession(s.id)));
+    await server.shutdown();
   });
 
   describe('SessionManager', () => {
+    let kernelManager: KernelManager;
+    let manager: SessionManager;
+    let session: Session.ISessionConnection;
+
+    beforeEach(async () => {
+      kernelManager = new KernelManager({ standby: 'never' });
+      manager = new SessionManager({ kernelManager, standby: 'never' });
+      await manager.ready;
+      session = await startNew(manager);
+      await session.kernel!.info;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
     describe('#constructor()', () => {
       it('should create a new session manager', () => {
         expect(manager instanceof SessionManager).toBe(true);
@@ -96,14 +87,14 @@ describe('session/manager', () => {
 
     describe('#ready', () => {
       it('should resolve when the manager is ready', async () => {
-        await manager.ready;
+        await expect(manager.ready).resolves.not.toThrow();
       });
     });
 
     describe('#running()', () => {
       it('should get the running sessions', async () => {
         await manager.refreshRunning();
-        const running = toArray(manager.running());
+        const running = Array.from(manager.running());
         expect(running.length).toBeGreaterThan(0);
       });
     });
@@ -113,7 +104,7 @@ describe('session/manager', () => {
         const promise = testEmission(manager.runningChanged, {
           test: (sender, args) => {
             expect(sender).toBe(manager);
-            expect(toArray(args).length).toBeGreaterThan(0);
+            expect(Array.from(args).length).toBeGreaterThan(0);
           }
         });
         await startNew(manager);
@@ -157,7 +148,7 @@ describe('session/manager', () => {
       // future is prematurely disposed.
       it('should refresh the list of session ids', async () => {
         await manager.refreshRunning();
-        const running = toArray(manager.running());
+        const running = Array.from(manager.running());
         expect(running.length).toBeGreaterThan(0);
       });
     });
@@ -230,7 +221,95 @@ describe('session/manager', () => {
         const session1 = manager.connectTo({ model: session0.model });
         const emission = testEmission(session1.disposed);
         await session0.shutdown();
-        await emission;
+        await expect(emission).resolves.not.toThrow();
+      });
+    });
+  });
+
+  describe('NoopManager', () => {
+    let manager: SessionManager.NoopManager;
+    let kernelManager: KernelManager.NoopManager;
+
+    beforeEach(async () => {
+      kernelManager = new KernelManager.NoopManager({ standby: 'never' });
+      await kernelManager.parentReady;
+      manager = new SessionManager.NoopManager({
+        kernelManager,
+        standby: 'never'
+      });
+      await manager.parentReady;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should take the options as an argument', async () => {
+        manager.dispose();
+        manager = new SessionManager.NoopManager({
+          kernelManager,
+          standby: 'never'
+        });
+        await manager.parentReady;
+        expect(manager instanceof SessionManager.NoopManager).toBe(true);
+      });
+    });
+
+    describe('#serverSettings', () => {
+      it('should get the server settings', async () => {
+        manager.dispose();
+        const serverSettings = ServerConnection.makeSettings();
+        const standby = 'never';
+        const token = serverSettings.token;
+        manager = new SessionManager.NoopManager({
+          kernelManager,
+          serverSettings,
+          standby
+        });
+        await manager.parentReady;
+        expect(manager.serverSettings.token).toBe(token);
+      });
+    });
+
+    describe('#running()', () => {
+      it('should get the running sessions', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#refreshRunning()', () => {
+      it('should update the running kernels', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#startNew()', () => {
+      it('should throw an error', () => {
+        return expect(startNew(manager)).rejects.toThrow();
+      });
+    });
+
+    describe('#connectTo()', () => {
+      it('should throw an error', () => {
+        const model = {
+          id: UUID.uuid4(),
+          path: UUID.uuid4(),
+          name: UUID.uuid4(),
+          type: 'MYTEST',
+          kernel: { name: 'foo', id: UUID.uuid4() }
+        };
+        return expect(() => {
+          manager.connectTo({ model });
+        }).toThrow();
+      });
+    });
+
+    describe('shutdown()', () => {
+      it('should throw an error', () => {
+        return expect(manager.shutdown(UUID.uuid4())).rejects.toThrow();
       });
     });
   });
diff --git a/packages/services/test/session/session.spec.ts b/packages/services/test/session/session.spec.ts
index 6cdd75cc0b20..282543e6d71e 100644
--- a/packages/services/test/session/session.spec.ts
+++ b/packages/services/test/session/session.spec.ts
@@ -1,32 +1,26 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  expectFailure,
-  flakyIt as it,
-  JupyterServer
-} from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer } from '@jupyterlab/testing';
 import { UUID } from '@lumino/coreutils';
 import { Session, SessionAPI } from '../../src';
 import { createSessionModel, getRequestHandler, makeSettings } from '../utils';
 
-const server = new JupyterServer();
-
-beforeAll(async () => {
-  await server.start();
-});
-
-afterAll(async () => {
-  await server.shutdown();
-});
-
 describe('session', () => {
   let session: Session.IModel;
+  let server: JupyterServer;
+
+  jest.retryTimes(3);
 
   beforeAll(async () => {
+    server = new JupyterServer();
+    await server.start();
     const sessions = await SessionAPI.listRunning();
     await Promise.all(sessions.map(s => SessionAPI.shutdownSession(s.id)));
+  }, 30000);
+
+  afterAll(async () => {
+    await server.shutdown();
   });
 
   afterEach(async () => {
@@ -36,39 +30,35 @@ describe('session', () => {
 
   describe('Session.listRunning()', () => {
     it('should yield a list of valid session models', async () => {
-      expect(toArray(await SessionAPI.listRunning()).length).toBe(0);
+      expect(Array.from(await SessionAPI.listRunning()).length).toBe(0);
       const session = await SessionAPI.startSession({
         name: UUID.uuid4(),
         path: UUID.uuid4(),
         type: 'test'
       });
-      expect(toArray(await SessionAPI.listRunning())).toEqual([session]);
+      expect(Array.from(await SessionAPI.listRunning())).toEqual([session]);
     });
 
     it('should throw an error for an invalid model', async () => {
       const data = { id: '1234', path: 'test' };
       const serverSettings = getRequestHandler(200, data);
-      const list = SessionAPI.listRunning(serverSettings);
-      await expectFailure(list);
+      await expect(SessionAPI.listRunning(serverSettings)).rejects.toThrow();
     });
 
     it('should throw an error for another invalid model', async () => {
       const data = [{ id: '1234', kernel: { id: '', name: '' }, path: '' }];
       const serverSettings = getRequestHandler(200, data);
-      const list = SessionAPI.listRunning(serverSettings);
-      await expectFailure(list);
+      await expect(SessionAPI.listRunning(serverSettings)).rejects.toThrow();
     });
 
     it('should fail for wrong response status', async () => {
       const serverSettings = getRequestHandler(201, [createSessionModel()]);
-      const list = SessionAPI.listRunning(serverSettings);
-      await expectFailure(list);
+      await expect(SessionAPI.listRunning(serverSettings)).rejects.toThrow();
     });
 
     it('should fail for error response status', async () => {
       const serverSettings = getRequestHandler(500, {});
-      const list = SessionAPI.listRunning(serverSettings);
-      await expectFailure(list, '');
+      await expect(SessionAPI.listRunning(serverSettings)).rejects.toThrow();
     });
   });
 
@@ -98,33 +88,26 @@ describe('session', () => {
     it('should fail for wrong response status', async () => {
       const sessionModel = createSessionModel();
       const serverSettings = getRequestHandler(200, sessionModel);
-      const sessionPromise = SessionAPI.startSession(
-        sessionModel as any,
-        serverSettings
-      );
-      await expectFailure(sessionPromise);
+      await expect(
+        SessionAPI.startSession(sessionModel as any, serverSettings)
+      ).rejects.toThrow();
     });
 
     it('should fail for error response status', async () => {
       const serverSettings = getRequestHandler(500, {});
       const sessionModel = createSessionModel();
-      const sessionPromise = SessionAPI.startSession(
-        sessionModel as any,
-        serverSettings
-      );
-      await expectFailure(sessionPromise, '');
+      await expect(
+        SessionAPI.startSession(sessionModel as any, serverSettings)
+      ).rejects.toThrow();
     });
 
     it('should fail for wrong response model', async () => {
       const sessionModel = createSessionModel();
       (sessionModel as any).path = 1;
       const serverSettings = getRequestHandler(201, sessionModel);
-      const sessionPromise = SessionAPI.startSession(
-        sessionModel as any,
-        serverSettings
-      );
-      const msg = `Property 'path' is not of type 'string'`;
-      await expectFailure(sessionPromise, msg);
+      await expect(
+        SessionAPI.startSession(sessionModel as any, serverSettings)
+      ).rejects.toThrow(/Property 'path' is not of type 'string'/);
     });
 
     it('should handle a deprecated response model', async () => {
@@ -151,11 +134,15 @@ describe('session', () => {
         name: UUID.uuid4(),
         type: 'test'
       });
-      await SessionAPI.shutdownSession(session.id);
+      await expect(
+        SessionAPI.shutdownSession(session.id)
+      ).resolves.not.toThrow();
     });
 
-    it('should handle a 404 status', () => {
-      return SessionAPI.shutdownSession(UUID.uuid4());
+    it('should handle a 404 status', async () => {
+      await expect(
+        SessionAPI.shutdownSession(UUID.uuid4())
+      ).resolves.not.toThrow();
     });
   });
 });
diff --git a/packages/services/test/session/validate.spec.ts b/packages/services/test/session/validate.spec.ts
index 20f0f76335ed..b4e60d227d58 100644
--- a/packages/services/test/session/validate.spec.ts
+++ b/packages/services/test/session/validate.spec.ts
@@ -17,7 +17,9 @@ describe('session/validate', () => {
         name: '',
         type: ''
       };
-      validateModel(model);
+      expect(() => {
+        validateModel(model);
+      }).not.toThrow();
     });
 
     it('should fail on missing data', () => {
@@ -27,7 +29,7 @@ describe('session/validate', () => {
         path: 'bar',
         name: ''
       };
-      expect(() => validateModel(model)).toThrowError();
+      expect(() => validateModel(model)).toThrow();
     });
   });
 
@@ -41,7 +43,9 @@ describe('session/validate', () => {
         }
       };
       updateLegacySessionModel(model);
-      validateModel(model);
+      expect(() => {
+        validateModel(model);
+      }).not.toThrow();
     });
   });
 });
diff --git a/packages/services/test/setting/manager.spec.ts b/packages/services/test/setting/manager.spec.ts
index 98595797e13f..e6d318fb8ba6 100644
--- a/packages/services/test/setting/manager.spec.ts
+++ b/packages/services/test/setting/manager.spec.ts
@@ -1,14 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { ServerConnection, SettingManager } from '../../src';
 
 const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/packages/services/test/target.ts b/packages/services/test/target.ts
index 09f0461770ae..b464167f5a2f 100644
--- a/packages/services/test/target.ts
+++ b/packages/services/test/target.ts
@@ -4,7 +4,7 @@
 declare let define: any;
 
 if (typeof define !== 'function') {
-  // @ts-expect-error
+  // @ts-expect-error Import of a untyped module
   const define = require('amdefine')(module); // eslint-disable-line @typescript-eslint/no-unused-vars
 }
 
diff --git a/packages/services/test/terminal/manager.spec.ts b/packages/services/test/terminal/manager.spec.ts
index 4c39e42316f5..87f4e182d1b3 100644
--- a/packages/services/test/terminal/manager.spec.ts
+++ b/packages/services/test/terminal/manager.spec.ts
@@ -1,8 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer, testEmission } from '@jupyterlab/testutils';
-import { toArray } from '@lumino/algorithm';
+import { JupyterServer, testEmission } from '@jupyterlab/testing';
 import {
   ServerConnection,
   Terminal,
@@ -14,30 +13,30 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
 });
 
 describe('terminal', () => {
-  let manager: Terminal.IManager;
-
-  beforeEach(async () => {
-    manager = new TerminalManager({ standby: 'never' });
-    await manager.ready;
-  });
-
-  afterEach(() => {
-    manager.dispose();
-  });
-
   afterAll(async () => {
     const models = await TerminalAPI.listRunning();
     await Promise.all(models.map(m => TerminalAPI.shutdownTerminal(m.name)));
   });
 
   describe('TerminalManager', () => {
+    let manager: Terminal.IManager;
+
+    beforeEach(async () => {
+      manager = new TerminalManager({ standby: 'never' });
+      await manager.ready;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
     describe('#constructor()', () => {
       it('should accept no options', async () => {
         const manager = new TerminalManager({ standby: 'never' });
@@ -80,8 +79,8 @@ describe('terminal', () => {
     });
 
     describe('#ready', () => {
-      it('should resolve when the manager is ready', () => {
-        return manager.ready;
+      it('should resolve when the manager is ready', async () => {
+        await expect(manager.ready).resolves.not.toThrow();
       });
     });
 
@@ -95,7 +94,7 @@ describe('terminal', () => {
       it('should give an iterator over the list of running models', async () => {
         await TerminalAPI.startNew();
         await manager.refreshRunning();
-        const running = toArray(manager.running());
+        const running = Array.from(manager.running());
         expect(running.length).toBeGreaterThan(0);
       });
     });
@@ -148,7 +147,7 @@ describe('terminal', () => {
         const emission = testEmission(manager.runningChanged, {
           test: (sender, args) => {
             expect(sender).toBe(manager);
-            expect(toArray(args).length).toBeGreaterThan(0);
+            expect(Array.from(args).length).toBeGreaterThan(0);
           }
         });
         await manager.startNew();
@@ -158,10 +157,10 @@ describe('terminal', () => {
 
     describe('#refreshRunning()', () => {
       it('should update the running session models', async () => {
-        const before = toArray(manager.running()).length;
+        const before = Array.from(manager.running()).length;
         const model = await TerminalAPI.startNew();
         await manager.refreshRunning();
-        const running = toArray(manager.running());
+        const running = Array.from(manager.running());
         expect(running.length).toBe(before + 1);
         let found = false;
         running.map(m => {
@@ -173,4 +172,74 @@ describe('terminal', () => {
       });
     });
   });
+
+  describe('NoopManager', () => {
+    let manager: TerminalManager.NoopManager;
+
+    beforeEach(async () => {
+      manager = new TerminalManager.NoopManager({ standby: 'never' });
+      await manager.parentReady;
+    });
+
+    afterEach(() => {
+      manager.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should take the options as an argument', async () => {
+        manager.dispose();
+        manager = new TerminalManager.NoopManager({
+          standby: 'never'
+        });
+        await manager.parentReady;
+        expect(manager instanceof TerminalManager.NoopManager).toBe(true);
+      });
+    });
+
+    describe('#serverSettings', () => {
+      it('should get the server settings', async () => {
+        manager.dispose();
+        const serverSettings = ServerConnection.makeSettings();
+        const standby = 'never';
+        const token = serverSettings.token;
+        manager = new TerminalManager.NoopManager({ serverSettings, standby });
+        await manager.parentReady;
+        expect(manager.serverSettings.token).toBe(token);
+      });
+    });
+
+    describe('#running()', () => {
+      it('should get the running sessions', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#refreshRunning()', () => {
+      it('should update the running kernels', async () => {
+        await manager.refreshRunning();
+        expect(Array.from(manager.running()).length).toEqual(0);
+      });
+    });
+
+    describe('#startNew()', () => {
+      it('should throw an error', () => {
+        return expect(manager.startNew()).rejects.toThrow();
+      });
+    });
+
+    describe('#connectTo()', () => {
+      it('should throw an error', () => {
+        return expect(() => {
+          manager.connectTo({ model: { name: 'abcd' } });
+        }).toThrow();
+      });
+    });
+
+    describe('shutdown()', () => {
+      it('should throw an error', () => {
+        return expect(manager.shutdown('1234')).rejects.toThrow();
+      });
+    });
+  });
 });
diff --git a/packages/services/test/terminal/terminal.spec.ts b/packages/services/test/terminal/terminal.spec.ts
index faf940c47719..88b2dbb411c6 100644
--- a/packages/services/test/terminal/terminal.spec.ts
+++ b/packages/services/test/terminal/terminal.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { PageConfig } from '@jupyterlab/coreutils';
-import { JupyterServer, testEmission } from '@jupyterlab/testutils';
+import { JupyterServer, testEmission } from '@jupyterlab/testing';
 import { Terminal, TerminalManager } from '../../src';
 import { handleRequest } from '../utils';
 
@@ -10,7 +10,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -50,7 +50,7 @@ describe('terminal', () => {
           }
         });
         session.send({ type: 'stdin', content: ['cd\r'] });
-        await emission;
+        await expect(emission).resolves.not.toThrow();
       });
     });
 
@@ -99,8 +99,10 @@ describe('terminal', () => {
     });
 
     describe('#send()', () => {
-      it('should send a message to the socket', async () => {
-        session.send({ type: 'stdin', content: [1, 2] });
+      it('should send a message to the socket', () => {
+        expect(() => {
+          session.send({ type: 'stdin', content: [1, 2] });
+        }).not.toThrow();
       });
     });
 
@@ -117,12 +119,12 @@ describe('terminal', () => {
     describe('#shutdown()', () => {
       it('should shut down the terminal session', async () => {
         session = await manager.startNew();
-        await session.shutdown();
+        await expect(session.shutdown()).resolves.not.toThrow();
       });
 
-      it('should handle a 404 status', () => {
+      it('should handle a 404 status', async () => {
         handleRequest(defaultSession, 404, {});
-        return defaultSession.shutdown();
+        await expect(defaultSession.shutdown()).resolves.not.toThrow();
       });
     });
   });
diff --git a/packages/services/test/user/user.spec.ts b/packages/services/test/user/user.spec.ts
index d0dcdd235842..d470ebea7940 100644
--- a/packages/services/test/user/user.spec.ts
+++ b/packages/services/test/user/user.spec.ts
@@ -1,14 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { ServerConnection, UserManager } from '../../src';
 
 const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/packages/services/test/utils.spec.ts b/packages/services/test/utils.spec.ts
index c8bbe2381162..f1daa49591d1 100644
--- a/packages/services/test/utils.spec.ts
+++ b/packages/services/test/utils.spec.ts
@@ -1,11 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import {
-  expectFailure,
-  isFulfilled,
-  testEmission
-} from '@jupyterlab/testutils';
+import { expectFailure, isFulfilled, testEmission } from '@jupyterlab/testing';
 import { PromiseDelegate } from '@lumino/coreutils';
 import { Signal } from '@lumino/signaling';
 
@@ -13,7 +9,7 @@ describe('test/utils', () => {
   describe('testEmission', () => {
     it('should resolve to the given value', async () => {
       const owner = {};
-      const x = new Signal<{}, number>(owner);
+      const x = new Signal<typeof owner, number>(owner);
       const emission = testEmission(x, {
         value: 'done'
       });
@@ -23,7 +19,7 @@ describe('test/utils', () => {
 
     it('should find the given emission', async () => {
       const owner = {};
-      const x = new Signal<{}, number>(owner);
+      const x = new Signal<typeof owner, number>(owner);
       const emission = testEmission(x, {
         find: (a, b) => b === 1,
         value: 'done'
@@ -36,7 +32,7 @@ describe('test/utils', () => {
 
     it('should reject if the test throws an error', async () => {
       const owner = {};
-      const x = new Signal<{}, number>(owner);
+      const x = new Signal<typeof owner, number>(owner);
       const emission = testEmission(x, {
         find: (a, b) => b === 1,
         test: (a, b) => {
@@ -52,7 +48,7 @@ describe('test/utils', () => {
 
     it('should resolve if the test succeeds', async () => {
       const owner = {};
-      const x = new Signal<{}, number>(owner);
+      const x = new Signal<typeof owner, number>(owner);
       const emission = testEmission(x, {
         find: (a, b) => b === 1,
         test: (a, b) => {
diff --git a/packages/services/test/utils.ts b/packages/services/test/utils.ts
index 188c8e7192a7..58d9bda7f90d 100644
--- a/packages/services/test/utils.ts
+++ b/packages/services/test/utils.ts
@@ -7,7 +7,6 @@ import {
   PromiseDelegate,
   UUID
 } from '@lumino/coreutils';
-import { Response } from 'node-fetch';
 import WebSocket from 'ws';
 import {
   Contents,
@@ -98,6 +97,7 @@ export const KERNELSPECS: JSONObject = {
  */
 export function getRequestHandler(
   status: number,
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
   body: any
 ): ServerConnection.ISettings {
   const fetch = (info: RequestInfo, init: RequestInit) => {
@@ -121,7 +121,8 @@ export interface IService {
 /**
  * Handle a single request with a mock response.
  */
-export function handleRequest(item: IService, status: number, body: any) {
+// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
+export function handleRequest(item: IService, status: number, body: any): void {
   // Store the existing fetch function.
   const oldFetch = item.serverSettings.fetch;
 
@@ -169,7 +170,13 @@ class SocketTester implements IService {
     for (let retry = 0; retry <= 5; retry++) {
       try {
         port = getRandomInt(9000, 20000);
-        this._server = new WebSocket.Server({ port });
+        this._server = new WebSocket.Server({
+          port,
+          handleProtocols: () => {
+            return KernelMessage.supportedKernelWebSocketProtocols
+              .v1KernelWebsocketJupyterOrg;
+          }
+        });
       } catch (err) {
         if (retry === 5) {
           throw err;
@@ -291,7 +298,7 @@ export class KernelTester extends SocketTester {
   /**
    * Send the status from the server to the client.
    */
-  sendStatus(msgId: string, status: Kernel.Status) {
+  sendStatus(msgId: string, status: Kernel.Status): string {
     return this.sendMessage({
       msgId,
       msgType: 'status',
@@ -303,7 +310,10 @@ export class KernelTester extends SocketTester {
   /**
    * Send an iopub stream message.
    */
-  sendStream(msgId: string, content: KernelMessage.IStreamMsg['content']) {
+  sendStream(
+    msgId: string,
+    content: KernelMessage.IStreamMsg['content']
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'stream',
@@ -318,7 +328,7 @@ export class KernelTester extends SocketTester {
   sendDisplayData(
     msgId: string,
     content: KernelMessage.IDisplayDataMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'display_data',
@@ -333,7 +343,7 @@ export class KernelTester extends SocketTester {
   sendUpdateDisplayData(
     msgId: string,
     content: KernelMessage.IUpdateDisplayDataMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'update_display_data',
@@ -344,7 +354,10 @@ export class KernelTester extends SocketTester {
   /**
    * Send an iopub comm open message.
    */
-  sendCommOpen(msgId: string, content: KernelMessage.ICommOpenMsg['content']) {
+  sendCommOpen(
+    msgId: string,
+    content: KernelMessage.ICommOpenMsg['content']
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'comm_open',
@@ -359,7 +372,7 @@ export class KernelTester extends SocketTester {
   sendCommClose(
     msgId: string,
     content: KernelMessage.ICommCloseMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'comm_close',
@@ -371,7 +384,10 @@ export class KernelTester extends SocketTester {
   /**
    * Send an iopub comm message.
    */
-  sendCommMsg(msgId: string, content: KernelMessage.ICommMsgMsg['content']) {
+  sendCommMsg(
+    msgId: string,
+    content: KernelMessage.ICommMsgMsg['content']
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'comm_msg',
@@ -383,7 +399,7 @@ export class KernelTester extends SocketTester {
   sendExecuteResult(
     msgId: string,
     content: KernelMessage.IExecuteResultMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'execute_result',
@@ -395,7 +411,7 @@ export class KernelTester extends SocketTester {
   sendExecuteReply(
     msgId: string,
     content: KernelMessage.IExecuteReplyMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'execute_reply',
@@ -407,7 +423,7 @@ export class KernelTester extends SocketTester {
   sendKernelInfoReply(
     msgId: string,
     content: KernelMessage.IInfoReplyMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'kernel_info_reply',
@@ -419,7 +435,7 @@ export class KernelTester extends SocketTester {
   sendInputRequest(
     msgId: string,
     content: KernelMessage.IInputRequestMsg['content']
-  ) {
+  ): string {
     return this.sendMessage({
       msgId,
       msgType: 'input_request',
@@ -433,7 +449,7 @@ export class KernelTester extends SocketTester {
    */
   sendMessage<T extends KernelMessage.Message>(
     options: MakeOptional<KernelMessage.IOptions<T>, 'session'>
-  ) {
+  ): string {
     const msg = KernelMessage.createMessage<any>({
       session: this.serverSessionId,
       ...options
@@ -444,10 +460,16 @@ export class KernelTester extends SocketTester {
   }
 
   /**
-   * Send a kernel message from the server to the client.
+   * Send a kernel message from the server to the client with newest protocol.
    */
   send(msg: KernelMessage.Message): void {
-    this.sendRaw(serialize(msg));
+    this.sendRaw(
+      serialize(
+        msg,
+        KernelMessage.supportedKernelWebSocketProtocols
+          .v1KernelWebsocketJupyterOrg
+      )
+    );
   }
 
   /**
@@ -492,7 +514,7 @@ export class KernelTester extends SocketTester {
   /**
    * Dispose the tester.
    */
-  dispose() {
+  dispose(): void {
     if (this._kernel) {
       this._kernel.dispose();
       this._kernel = null;
@@ -502,6 +524,7 @@ export class KernelTester extends SocketTester {
 
   /**
    * Set up a new server websocket to pretend like it is a server kernel.
+   * Use the newest protocol.
    */
   protected onSocket(sock: WebSocket): void {
     super.onSocket(sock);
@@ -510,7 +533,11 @@ export class KernelTester extends SocketTester {
       if (msg instanceof Buffer) {
         msg = new Uint8Array(msg).buffer;
       }
-      const data = deserialize(msg);
+      const data = deserialize(
+        msg,
+        KernelMessage.supportedKernelWebSocketProtocols
+          .v1KernelWebsocketJupyterOrg
+      );
       if (data.header.msg_type === 'kernel_info_request') {
         // First send status busy message.
         this.parentHeader = data.header;
@@ -600,7 +627,10 @@ export class SessionTester extends SocketTester {
   /**
    * Send the status from the server to the client.
    */
-  sendStatus(status: Kernel.Status, parentHeader?: KernelMessage.IHeader) {
+  sendStatus(
+    status: Kernel.Status,
+    parentHeader?: KernelMessage.IHeader
+  ): void {
     const msg = KernelMessage.createMessage({
       msgType: 'status',
       channel: 'iopub',
@@ -616,10 +646,16 @@ export class SessionTester extends SocketTester {
   }
 
   /**
-   * Send a kernel message from the server to the client.
+   * Send a kernel message from the server to the client with newest protocol.
    */
   send(msg: KernelMessage.IMessage): void {
-    this.sendRaw(serialize(msg));
+    this.sendRaw(
+      serialize(
+        msg,
+        KernelMessage.supportedKernelWebSocketProtocols
+          .v1KernelWebsocketJupyterOrg
+      )
+    );
   }
 
   /**
@@ -631,6 +667,7 @@ export class SessionTester extends SocketTester {
 
   /**
    * Set up a new server websocket to pretend like it is a server kernel.
+   * Use the newest protocol.
    */
   protected onSocket(sock: WebSocket): void {
     super.onSocket(sock);
@@ -638,7 +675,11 @@ export class SessionTester extends SocketTester {
       if (msg instanceof Buffer) {
         msg = new Uint8Array(msg).buffer;
       }
-      const data = deserialize(msg);
+      const data = deserialize(
+        msg,
+        KernelMessage.supportedKernelWebSocketProtocols
+          .v1KernelWebsocketJupyterOrg
+      );
       if (KernelMessage.isInfoRequestMsg(data)) {
         // First send status busy message.
         this.sendStatus('busy', data.header);
@@ -677,7 +718,7 @@ export class TerminalTester extends SocketTester {
   /**
    * Register the message callback with the websocket server.
    */
-  onMessage(cb: (msg: Terminal.IMessage) => void) {
+  onMessage(cb: (msg: Terminal.IMessage) => void): void {
     this._onMessage = cb;
   }
 
@@ -709,7 +750,6 @@ export class TerminalTester extends SocketTester {
  * type B = MakeOptional<A, 'a'>
  * const x: B = {b: 'test'}
  */
-type MakeOptional<T, K> = Pick<T, Exclude<keyof T, K>> &
-  {
-    [P in Extract<keyof T, K>]?: T[P];
-  };
+type MakeOptional<T, K> = Pick<T, Exclude<keyof T, K>> & {
+  [P in Extract<keyof T, K>]?: T[P];
+};
diff --git a/packages/services/test/workspace/manager.spec.ts b/packages/services/test/workspace/manager.spec.ts
index 723ee97a1b04..c581dbb2e3a1 100644
--- a/packages/services/test/workspace/manager.spec.ts
+++ b/packages/services/test/workspace/manager.spec.ts
@@ -1,14 +1,14 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterServer } from '@jupyterlab/testutils';
+import { JupyterServer } from '@jupyterlab/testing';
 import { ServerConnection, WorkspaceManager } from '../../src';
 
 const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
diff --git a/packages/services/tsconfig.json b/packages/services/tsconfig.json
index a0742e5969e1..a71022419cb0 100644
--- a/packages/services/tsconfig.json
+++ b/packages/services/tsconfig.json
@@ -15,9 +15,6 @@
     {
       "path": "../nbformat"
     },
-    {
-      "path": "../observables"
-    },
     {
       "path": "../settingregistry"
     },
diff --git a/packages/services/tsconfig.test.json b/packages/services/tsconfig.test.json
index 991e84c4a754..556052aa3738 100644
--- a/packages/services/tsconfig.test.json
+++ b/packages/services/tsconfig.test.json
@@ -8,9 +8,6 @@
     {
       "path": "../nbformat"
     },
-    {
-      "path": "../observables"
-    },
     {
       "path": "../settingregistry"
     },
@@ -21,22 +18,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../nbformat"
-    },
-    {
-      "path": "../observables"
-    },
-    {
-      "path": "../settingregistry"
-    },
-    {
-      "path": "../statedb"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/services/typings/xmlhttprequest/xmlhttprequest.d.ts b/packages/services/typings/xmlhttprequest/xmlhttprequest.d.ts
index 02c0c14cb497..7f985cc9382b 100644
--- a/packages/services/typings/xmlhttprequest/xmlhttprequest.d.ts
+++ b/packages/services/typings/xmlhttprequest/xmlhttprequest.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 declare module 'xmlhttprequest' {
   export var XMLHttpRequest: XMLHttpRequest;
 }
diff --git a/packages/services/webpack.config.js b/packages/services/webpack.config.js
index ac4d8cd19beb..57175b20c507 100644
--- a/packages/services/webpack.config.js
+++ b/packages/services/webpack.config.js
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const version = require('./package.json').version;
 const crypto = require('crypto');
 
diff --git a/packages/settingeditor-extension/package.json b/packages/settingeditor-extension/package.json
index b89759308e53..b88f23b33400 100644
--- a/packages/settingeditor-extension/package.json
+++ b/packages/settingeditor-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/settingeditor-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Setting Editor Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,21 +38,21 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingeditor": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/disposable": "^1.10.0"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/settingeditor": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/disposable": "^2.1.2"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/settingeditor-extension/src/index.ts b/packages/settingeditor-extension/src/index.ts
index 64bbd8d9d118..952c5ee67b29 100644
--- a/packages/settingeditor-extension/src/index.ts
+++ b/packages/settingeditor-extension/src/index.ts
@@ -14,14 +14,17 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import {
-  CommandToolbarButton,
   ICommandPalette,
   MainAreaWidget,
-  Toolbar,
   WidgetTracker
 } from '@jupyterlab/apputils';
 import { IEditorServices } from '@jupyterlab/codeeditor';
-import { IFormComponentRegistry, launchIcon } from '@jupyterlab/ui-components';
+import {
+  CommandToolbarButton,
+  IFormRendererRegistry,
+  launchIcon,
+  Toolbar
+} from '@jupyterlab/ui-components';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import {
   IJSONSettingEditorTracker,
@@ -57,11 +60,12 @@ type SettingEditorType = 'ui' | 'json';
  */
 const plugin: JupyterFrontEndPlugin<ISettingEditorTracker> = {
   id: '@jupyterlab/settingeditor-extension:form-ui',
+  description: 'Adds the interactive settings editor and provides its tracker.',
   requires: [
     ISettingRegistry,
     IStateDB,
     ITranslator,
-    IFormComponentRegistry,
+    IFormRendererRegistry,
     ILabStatus
   ],
   optional: [ILayoutRestorer, ICommandPalette, IJSONSettingEditorTracker],
@@ -78,7 +82,7 @@ function activate(
   registry: ISettingRegistry,
   state: IStateDB,
   translator: ITranslator,
-  editorRegistry: IFormComponentRegistry,
+  editorRegistry: IFormRendererRegistry,
   status: ILabStatus,
   restorer: ILayoutRestorer | null,
   palette: ICommandPalette | null,
@@ -103,7 +107,7 @@ function activate(
   const openUi = async (args: { query: string }) => {
     if (tracker.currentWidget && !tracker.currentWidget.isDisposed) {
       if (!tracker.currentWidget.isAttached) {
-        shell.add(tracker.currentWidget);
+        shell.add(tracker.currentWidget, 'main', { type: 'Settings' });
       }
       shell.activateById(tracker.currentWidget.id);
       return;
@@ -149,7 +153,7 @@ function activate(
     editor.title.closable = true;
 
     void tracker.add(editor);
-    shell.add(editor);
+    shell.add(editor, 'main', { type: 'Settings' });
   };
 
   commands.addCommand(CommandIDs.open, {
@@ -174,7 +178,7 @@ function activate(
       if (args.label) {
         return args.label as string;
       }
-      return trans.__('Advanced Settings Editor');
+      return trans.__('Settings Editor');
     }
   });
 
@@ -194,6 +198,7 @@ function activate(
  */
 const jsonPlugin: JupyterFrontEndPlugin<IJSONSettingEditorTracker> = {
   id: '@jupyterlab/settingeditor-extension:plugin',
+  description: 'Adds the JSON settings editor and provides its tracker.',
   requires: [
     ISettingRegistry,
     IEditorServices,
@@ -244,7 +249,9 @@ function activateJSON(
     execute: async () => {
       if (tracker.currentWidget && !tracker.currentWidget.isDisposed) {
         if (!tracker.currentWidget.isAttached) {
-          shell.add(tracker.currentWidget);
+          shell.add(tracker.currentWidget, 'main', {
+            type: 'Advanced Settings'
+          });
         }
         shell.activateById(tracker.currentWidget.id);
         return;
@@ -303,9 +310,9 @@ function activateJSON(
       container.title.closable = true;
 
       void tracker.add(container);
-      shell.add(container);
+      shell.add(container, 'main', { type: 'Advanced Settings' });
     },
-    label: trans.__('Advanced JSON Settings Editor')
+    label: trans.__('Advanced Settings Editor')
   });
   if (palette) {
     palette.addItem({
diff --git a/packages/settingeditor/.vscode/launch.json b/packages/settingeditor/.vscode/launch.json
new file mode 100644
index 000000000000..66fb4b825a88
--- /dev/null
+++ b/packages/settingeditor/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach to jest",
+            // Usage:
+            // Open the parent directory in VSCode
+            // Run `jlpm test:debug:watch` in a terminal
+            // Run this debugging task
+            "port": 9229
+        }
+    ]
+}
diff --git a/packages/settingeditor/babel.config.js b/packages/settingeditor/babel.config.js
new file mode 100644
index 000000000000..fa81498e662b
--- /dev/null
+++ b/packages/settingeditor/babel.config.js
@@ -0,0 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const defaultConfig = require('@jupyterlab/testing/lib/babel-config');
+
+module.exports = defaultConfig;
diff --git a/packages/settingeditor/jest.config.js b/packages/settingeditor/jest.config.js
new file mode 100644
index 000000000000..cd234acbbdc0
--- /dev/null
+++ b/packages/settingeditor/jest.config.js
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
+module.exports = func(__dirname);
diff --git a/packages/settingeditor/package.json b/packages/settingeditor/package.json
index 1354e80c6a45..4d6c47dc7135 100644
--- a/packages/settingeditor/package.json
+++ b/packages/settingeditor/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/settingeditor",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "The JupyterLab default setting editor interface",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,41 +27,55 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
+    "build:test": "tsc --build tsconfig.test.json",
+    "clean": "rimraf lib tsconfig.tsbuildinfo",
     "docs": "typedoc src",
+    "test": "jest",
+    "test:cov": "jest --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/inspector": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/polling": "^1.9.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "@rjsf/core": "^3.1.0",
-    "json-schema": "~0.4.0",
-    "react": "^17.0.1"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/inspector": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "@rjsf/core": "^5.1.0",
+    "@rjsf/utils": "^5.1.0",
+    "@rjsf/validator-ajv8": "^5.1.0",
+    "json-schema": "^0.4.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@types/react": "^17.0.0",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react": "^18.0.26",
+    "@types/react-test-renderer": "^18.0.0",
+    "jest": "^29.2.0",
+    "react-test-renderer": "^18.2.0",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "ts-jest": "^29.1.0",
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/settingeditor/src/InstructionsPlaceholder.tsx b/packages/settingeditor/src/InstructionsPlaceholder.tsx
new file mode 100644
index 000000000000..a0fa26a337e9
--- /dev/null
+++ b/packages/settingeditor/src/InstructionsPlaceholder.tsx
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+
+import { ITranslator } from '@jupyterlab/translation';
+
+type ISettingsEditorPlaceholderProps = {
+  translator: ITranslator;
+};
+
+export const SettingsEditorPlaceholder = ({
+  translator
+}: ISettingsEditorPlaceholderProps) => {
+  const trans = translator.load('jupyterlab');
+  return (
+    <div className="jp-SettingsEditor-placeholder">
+      <div className="jp-SettingsEditor-placeholderContent">
+        <h3>{trans.__('No Plugin Selected')}</h3>
+        <p>
+          {trans.__(
+            'Select a plugin from the list to view and edit its preferences.'
+          )}
+        </p>
+      </div>
+    </div>
+  );
+};
diff --git a/packages/settingeditor/src/SettingsFormEditor.tsx b/packages/settingeditor/src/SettingsFormEditor.tsx
index d9d35cd742f1..6e58b0c2c9bb 100644
--- a/packages/settingeditor/src/SettingsFormEditor.tsx
+++ b/packages/settingeditor/src/SettingsFormEditor.tsx
@@ -3,25 +3,24 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+import React from 'react';
+
 import { showErrorMessage } from '@jupyterlab/apputils';
-import { caretDownIcon, caretRightIcon } from '@jupyterlab/ui-components';
 import { ISettingRegistry, Settings } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
-import { reduce } from '@lumino/algorithm';
-import { JSONExt, ReadonlyPartialJSONObject } from '@lumino/coreutils';
+import { FormComponent } from '@jupyterlab/ui-components';
+import {
+  JSONExt,
+  PartialJSONObject,
+  ReadonlyJSONObject,
+  ReadonlyPartialJSONObject
+} from '@lumino/coreutils';
 import { Debouncer } from '@lumino/polling';
-import Form, {
-  ArrayFieldTemplateProps,
-  Field,
-  FieldTemplateProps,
-  IChangeEvent,
-  ObjectFieldTemplateProps,
-  UiSchema,
-  utils
-} from '@rjsf/core';
+import { IChangeEvent } from '@rjsf/core';
+import validatorAjv8 from '@rjsf/validator-ajv8';
+import { Field, UiSchema } from '@rjsf/utils';
 import { JSONSchema7 } from 'json-schema';
-import React from 'react';
-import { PluginList } from './pluginlist';
+import { Button } from '@jupyterlab/ui-components';
 
 /**
  * Indentation to use when saving the settings as JSON document.
@@ -45,17 +44,7 @@ export namespace SettingsFormEditor {
     /**
      * Dictionary used for custom field renderers in the form.
      */
-    renderers: { [id: string]: Field };
-
-    /**
-     * Whether the form is collapsed or not.
-     */
-    isCollapsed: boolean;
-
-    /**
-     * Callback with the collapse state value.
-     */
-    onCollapseChange: (v: boolean) => void;
+    renderers: { [id: string]: { [property: string]: Field } };
 
     /**
      * Translator object
@@ -103,20 +92,6 @@ export namespace SettingsFormEditor {
      * Filtered schema
      */
     filteredSchema?: ISettingRegistry.ISchema;
-    /**
-     * Field template
-     */
-    fieldTemplate?: React.StatelessComponent<FieldTemplateProps<any>>;
-    /**
-     * Array Field template
-     */
-    arrayFieldTemplate?: React.StatelessComponent<ArrayFieldTemplateProps<any>>;
-    /**
-     * Object Field template
-     */
-    objectFieldTemplate?: React.StatelessComponent<
-      ObjectFieldTemplateProps<any>
-    >;
     /**
      * Form context
      */
@@ -124,247 +99,6 @@ export namespace SettingsFormEditor {
   }
 }
 
-/**
- * Template to allow for custom buttons to re-order/remove entries in an array.
- * Necessary to create accessible buttons.
- */
-const CustomArrayTemplateFactory = (
-  translator: ITranslator
-): React.FC<ArrayFieldTemplateProps> => {
-  const trans = translator.load('jupyterlab');
-
-  const factory = (props: ArrayFieldTemplateProps) => {
-    return (
-      <div className={props.className}>
-        <props.TitleField
-          title={props.title}
-          required={props.required}
-          id={`${props.idSchema.$id}-title`}
-        />
-        <props.DescriptionField
-          id={`${props.idSchema.$id}-description`}
-          description={props.schema.description ?? ''}
-        />
-        {props.items.map(item => {
-          return (
-            <div key={item.key} className={item.className}>
-              {item.children}
-              <div className="jp-ArrayOperations">
-                <button
-                  className="jp-mod-styled jp-mod-reject"
-                  onClick={item.onReorderClick(item.index, item.index - 1)}
-                  disabled={!item.hasMoveUp}
-                >
-                  {trans.__('Move Up')}
-                </button>
-                <button
-                  className="jp-mod-styled jp-mod-reject"
-                  onClick={item.onReorderClick(item.index, item.index + 1)}
-                  disabled={!item.hasMoveDown}
-                >
-                  {trans.__('Move Down')}
-                </button>
-                <button
-                  className="jp-mod-styled jp-mod-warn"
-                  onClick={item.onDropIndexClick(item.index)}
-                  disabled={!item.hasRemove}
-                >
-                  {trans.__('Remove')}
-                </button>
-              </div>
-            </div>
-          );
-        })}
-        {props.canAdd && (
-          <button
-            className="jp-mod-styled jp-mod-reject"
-            onClick={props.onAddClick}
-          >
-            {trans.__('Add')}
-          </button>
-        )}
-      </div>
-    );
-  };
-  factory.displayName = 'JupyterLabArrayTemplate';
-  return factory;
-};
-
-/**
- * Template with custom add button, necessary for accessiblity and internationalization.
- */
-const CustomObjectTemplateFactory = (
-  translator: ITranslator
-): React.FC<ObjectFieldTemplateProps> => {
-  const trans = translator.load('jupyterlab');
-
-  const factory = (props: ObjectFieldTemplateProps) => {
-    const { TitleField, DescriptionField } = props;
-    return (
-      <fieldset id={props.idSchema.$id}>
-        {(props.uiSchema['ui:title'] || props.title) && (
-          <TitleField
-            id={`${props.idSchema.$id}__title`}
-            title={props.title || props.uiSchema['ui:title']}
-            required={props.required}
-          />
-        )}
-        {props.description && (
-          <DescriptionField
-            id={`${props.idSchema.$id}__description`}
-            description={props.description}
-          />
-        )}
-        {props.properties.map(property => property.content)}
-        {utils.canExpand(props.schema, props.uiSchema, props.formData) && (
-          <button
-            className="jp-mod-styled jp-mod-reject"
-            onClick={props.onAddClick(props.schema)}
-            disabled={props.disabled || props.readonly}
-          >
-            {trans.__('Add')}
-          </button>
-        )}
-      </fieldset>
-    );
-  };
-  factory.displayName = 'JupyterLabObjectTemplate';
-  return factory;
-};
-
-/**
- * Renders the modified indicator and errors
- */
-const CustomTemplateFactory = (
-  translator: ITranslator
-): React.FC<FieldTemplateProps> => {
-  const trans = translator.load('jupyterlab');
-
-  const factory = (props: FieldTemplateProps) => {
-    const {
-      formData,
-      schema,
-      label,
-      displayLabel,
-      id,
-      formContext,
-      errors,
-      rawErrors,
-      children,
-      onKeyChange,
-      onDropPropertyClick
-    } = props;
-    /**
-     * Determine if the field has been modified
-     * Schema Id is formatted as 'root_<field name>.<nexted field name>'
-     * This logic parses out the field name to find the default value
-     * before determining if the field has been modified.
-     */
-    const schemaIds = id.split('_');
-    schemaIds.shift();
-    const schemaId = schemaIds.join('.');
-    let defaultValue;
-    if (schemaIds.length === 1) {
-      defaultValue = formContext.settings.default(schemaId);
-    } else if (schemaIds.length > 1) {
-      const allDefaultsForObject: any = {};
-      allDefaultsForObject[schemaIds[0]] = formContext.settings.default(
-        schemaIds[0]
-      );
-      defaultValue = reduce(
-        schemaIds,
-        (acc, val, i) => {
-          return acc?.[val];
-        },
-        allDefaultsForObject
-      );
-    }
-    const isModified =
-      schemaId !== '' &&
-      formData !== undefined &&
-      defaultValue !== undefined &&
-      !schema.properties &&
-      schema.type !== 'array' &&
-      !JSONExt.deepEqual(formData, defaultValue);
-    const isRoot = schemaId === '';
-
-    const needsDescription =
-      !isRoot &&
-      schema.type != 'object' &&
-      id !=
-        'jp-SettingsEditor-@jupyterlab/shortcuts-extension:shortcuts_shortcuts';
-
-    // While we can implement "remove" button for array items in array template,
-    // object templates do not provide a way to do this; instead we need to add
-    // buttons here (and first check if the field can be removed = is additional).
-    const isAdditional = schema.hasOwnProperty(utils.ADDITIONAL_PROPERTY_FLAG);
-
-    return (
-      <div
-        className={`form-group ${
-          displayLabel || schema.type === 'boolean' ? 'small-field' : ''
-        }`}
-      >
-        {
-          // Only show the modified indicator if there are no errors
-          isModified && !rawErrors && <div className="jp-modifiedIndicator" />
-        }
-        {
-          // Shows a red indicator for fields that have validation errors
-          rawErrors && (
-            <div className="jp-modifiedIndicator jp-errorIndicator" />
-          )
-        }
-        <div className="jp-FormGroup-content">
-          {displayLabel && !isRoot && label && !isAdditional && (
-            <h3 className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
-              {label}
-            </h3>
-          )}
-          {isAdditional && (
-            <input
-              className="jp-FormGroup-contentItem jp-mod-styled"
-              type="text"
-              onBlur={event => onKeyChange(event.target.value)}
-              defaultValue={label}
-            />
-          )}
-          <div
-            className={`${
-              isRoot
-                ? 'jp-root'
-                : schema.type === 'object'
-                ? 'jp-objectFieldWrapper'
-                : 'jp-inputFieldWrapper jp-FormGroup-contentItem'
-            }`}
-          >
-            {children}
-          </div>
-          {isAdditional && (
-            <button
-              className="jp-FormGroup-contentItem jp-mod-styled jp-mod-warn jp-FormGroup-removeButton"
-              onClick={onDropPropertyClick(label)}
-            >
-              {trans.__('Remove')}
-            </button>
-          )}
-          {schema.description && needsDescription && (
-            <div className="jp-FormGroup-description">{schema.description}</div>
-          )}
-          {isModified && schema.default !== undefined && (
-            <div className="jp-FormGroup-default">
-              {trans.__('Default: %1', schema.default?.toLocaleString())}
-            </div>
-          )}
-          <div className="validationErrors">{errors}</div>
-        </div>
-      </div>
-    );
-  };
-  factory.displayName = 'JupyterLabFieldTemplate';
-  return factory;
-};
-
 /**
  * A React component that prepares the settings for a
  * given plugin to be rendered in the FormEditor.
@@ -376,15 +110,15 @@ export class SettingsFormEditor extends React.Component<
   constructor(props: SettingsFormEditor.IProps) {
     super(props);
     const { settings } = props;
-    this._formData = settings.composite;
+    this._formData = settings.composite as ReadonlyJSONObject;
     this.state = {
       isModified: settings.isModified,
       uiSchema: {},
       filteredSchema: this.props.settings.schema,
-      fieldTemplate: CustomTemplateFactory(this.props.translator),
-      arrayFieldTemplate: CustomArrayTemplateFactory(this.props.translator),
-      objectFieldTemplate: CustomObjectTemplateFactory(this.props.translator),
-      formContext: { settings: this.props.settings }
+      formContext: {
+        defaultFormData: this.props.settings.default(),
+        settings: this.props.settings
+      }
     };
     this.handleChange = this.handleChange.bind(this);
     this._debouncer = new Debouncer(this.handleChange);
@@ -396,20 +130,17 @@ export class SettingsFormEditor extends React.Component<
   }
 
   componentDidUpdate(prevProps: SettingsFormEditor.IProps): void {
-    this._setUiSchema(prevProps.renderers);
+    this._setUiSchema(prevProps.renderers[prevProps.settings.id]);
     this._setFilteredSchema(prevProps.filteredValues);
 
-    if (prevProps.translator !== this.props.translator) {
+    if (prevProps.settings !== this.props.settings) {
       this.setState({
-        fieldTemplate: CustomTemplateFactory(this.props.translator),
-        arrayFieldTemplate: CustomArrayTemplateFactory(this.props.translator),
-        objectFieldTemplate: CustomObjectTemplateFactory(this.props.translator)
+        formContext: {
+          settings: this.props.settings,
+          defaultFormData: this.props.settings.default()
+        }
       });
     }
-
-    if (prevProps.settings !== this.props.settings) {
-      this.setState({ formContext: { settings: this.props.settings } });
-    }
   }
 
   componentWillUnmount(): void {
@@ -418,12 +149,12 @@ export class SettingsFormEditor extends React.Component<
 
   /**
    * Handler for edits made in the form editor.
-   * @param data - Form data sent from the form editor
    */
   handleChange(): void {
     // Prevent unnecessary save when opening settings that haven't been modified.
     if (
       !this.props.settings.isModified &&
+      this._formData &&
       this.props.settings.isDefault(this._formData)
     ) {
       this.props.updateDirtyState(false);
@@ -452,73 +183,52 @@ export class SettingsFormEditor extends React.Component<
     for (const field in this.props.settings.user) {
       await this.props.settings.remove(field);
     }
-    this._formData = this.props.settings.composite;
+    this._formData = this.props.settings.composite as ReadonlyJSONObject;
     this.setState({ isModified: false });
   };
 
   render(): JSX.Element {
     const trans = this.props.translator.load('jupyterlab');
-    const icon = this.props.isCollapsed ? caretRightIcon : caretDownIcon;
 
     return (
-      <div>
-        <div
-          className="jp-SettingsHeader"
-          onClick={() => {
-            this.props.onCollapseChange(!this.props.isCollapsed);
-            this.props.onSelect(this.props.settings.id);
-          }}
-        >
-          <header className="jp-SettingsTitle">
-            <icon.react
-              tag="span"
-              elementPosition="center"
-              className="jp-SettingsTitle-caret"
-            />
-            <h2>{this.props.settings.schema.title}</h2>
-            <div className="jp-SettingsHeader-description">
-              {this.props.settings.schema.description}
-            </div>
-          </header>
-          {this.state.isModified && (
-            <button className="jp-RestoreButton" onClick={this.reset}>
-              {trans.__('Restore to Defaults')}
-            </button>
-          )}
+      <>
+        <div className="jp-SettingsHeader">
+          <h2
+            className="jp-SettingsHeader-title"
+            title={this.props.settings.schema.description}
+          >
+            {this.props.settings.schema.title}
+          </h2>
+          <div className="jp-SettingsHeader-buttonbar">
+            {this.state.isModified && (
+              <Button className="jp-RestoreButton" onClick={this.reset}>
+                {trans.__('Restore to Defaults')}
+              </Button>
+            )}
+          </div>
+          <div className="jp-SettingsHeader-description">
+            {this.props.settings.schema.description}
+          </div>
         </div>
-        {!this.props.isCollapsed && (
-          <Form
-            schema={this.state.filteredSchema as JSONSchema7}
-            formData={this._formData}
-            FieldTemplate={this.state.fieldTemplate}
-            ArrayFieldTemplate={this.state.arrayFieldTemplate}
-            ObjectFieldTemplate={this.state.objectFieldTemplate}
-            uiSchema={this.state.uiSchema}
-            fields={this.props.renderers}
-            formContext={this.state.formContext}
-            liveValidate
-            idPrefix={`jp-SettingsEditor-${this.props.settings.id}`}
-            onChange={this._onChange}
-          />
-        )}
-      </div>
+        <FormComponent
+          validator={validatorAjv8}
+          schema={this.state.filteredSchema as JSONSchema7}
+          formData={this._getFilteredFormData(this.state.filteredSchema)}
+          uiSchema={this.state.uiSchema}
+          fields={this.props.renderers[this.props.settings.id]}
+          formContext={this.state.formContext}
+          liveValidate
+          idPrefix={`jp-SettingsEditor-${this.props.settings.id}`}
+          onChange={this._onChange}
+          translator={this.props.translator}
+        />
+      </>
     );
   }
 
-  /**
-   * Callback on plugin selection
-   * @param list Plugin list
-   * @param id Plugin id
-   */
-  protected onSelect = (list: PluginList, id: string): void => {
-    if (id === this.props.settings.id) {
-      this.props.onCollapseChange(false);
-    }
-  };
-
   private _onChange = (e: IChangeEvent<ReadonlyPartialJSONObject>): void => {
     this.props.hasError(e.errors.length !== 0);
-    this._formData = e.formData;
+    this._formData = e.formData as ReadonlyJSONObject;
     if (e.errors.length === 0) {
       this.props.updateDirtyState(true);
       void this._debouncer.invoke();
@@ -527,18 +237,18 @@ export class SettingsFormEditor extends React.Component<
   };
 
   private _setUiSchema(prevRenderers?: { [id: string]: Field }) {
+    const renderers = this.props.renderers[this.props.settings.id];
     if (
-      !prevRenderers ||
       !JSONExt.deepEqual(
-        Object.keys(prevRenderers).sort(),
-        Object.keys(this.props.renderers).sort()
+        Object.keys(prevRenderers ?? {}).sort(),
+        Object.keys(renderers ?? {}).sort()
       )
     ) {
       /**
        * Construct uiSchema to pass any custom renderers to the form editor.
        */
       const uiSchema: UiSchema = {};
-      for (const id in this.props.renderers) {
+      for (const id in this.props.renderers[this.props.settings.id]) {
         if (
           Object.keys(this.props.settings.schema.properties ?? {}).includes(id)
         ) {
@@ -576,6 +286,23 @@ export class SettingsFormEditor extends React.Component<
     }
   }
 
+  private _getFilteredFormData(
+    filteredSchema?: ISettingRegistry.ISchema
+  ): ReadonlyJSONObject {
+    if (!filteredSchema?.properties) {
+      return this._formData;
+    }
+    const filteredFormData = JSONExt.deepCopy(
+      this._formData as PartialJSONObject
+    );
+    for (const field in filteredFormData) {
+      if (!filteredSchema.properties[field]) {
+        delete filteredFormData[field];
+      }
+    }
+    return filteredFormData as ReadonlyJSONObject;
+  }
+
   private _debouncer: Debouncer<void, any>;
-  private _formData: any;
+  private _formData: ReadonlyJSONObject;
 }
diff --git a/packages/settingeditor/src/inspector.ts b/packages/settingeditor/src/inspector.ts
index 51b689ac6ffe..0040756adac8 100644
--- a/packages/settingeditor/src/inspector.ts
+++ b/packages/settingeditor/src/inspector.ts
@@ -120,7 +120,7 @@ class InspectorConnector extends DataConnector<
         return `**\`[${this._trans.__('syntax error')}]\`** *${error.message}*`;
       case 'type':
         return `**\`[${this._trans.__('type error')}]\`**
-          \`${error.dataPath}\` ${error.message}`;
+          \`${error.instancePath}\` ${error.message}`;
       default:
         return `**\`[${this._trans.__('error')}]\`** *${error.message}*`;
     }
diff --git a/packages/settingeditor/src/jsonsettingeditor.tsx b/packages/settingeditor/src/jsonsettingeditor.tsx
index aed63c6cac47..e95a2b52e2bb 100644
--- a/packages/settingeditor/src/jsonsettingeditor.tsx
+++ b/packages/settingeditor/src/jsonsettingeditor.tsx
@@ -3,22 +3,21 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ReactWidget } from '@jupyterlab/apputils';
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { IStateDB } from '@jupyterlab/statedb';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { jupyterIcon } from '@jupyterlab/ui-components';
+import { ReactWidget } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { JSONExt, JSONObject, JSONValue } from '@lumino/coreutils';
 import { Message } from '@lumino/messaging';
 import { ISignal } from '@lumino/signaling';
-import { Widget } from '@lumino/widgets';
+import { SplitPanel, Widget } from '@lumino/widgets';
 import * as React from 'react';
+import { SettingsEditorPlaceholder } from './InstructionsPlaceholder';
 import { PluginEditor } from './plugineditor';
 import { PluginList } from './pluginlist';
-import { SplitPanel } from './splitpanel';
 
 /**
  * The ratio panes in the setting editor.
@@ -46,7 +45,6 @@ export class JsonSettingEditor extends SplitPanel {
       spacing: 1
     });
     this.translator = options.translator || nullTranslator;
-    const trans = this.translator.load('jupyterlab');
     this.addClass('jp-SettingEditor');
     this.key = options.key;
     this.state = options.state;
@@ -54,25 +52,7 @@ export class JsonSettingEditor extends SplitPanel {
     const { commands, editorFactory, rendermime } = options;
     const registry = (this.registry = options.registry);
     const instructions = (this._instructions = ReactWidget.create(
-      <React.Fragment>
-        <h2>
-          <jupyterIcon.react
-            className="jp-SettingEditorInstructions-icon"
-            tag="span"
-            elementPosition="center"
-            height="auto"
-            width="60px"
-          />
-          <span className="jp-SettingEditorInstructions-title">
-            {trans.__('Settings')}
-          </span>
-        </h2>
-        <span className="jp-SettingEditorInstructions-text">
-          {trans.__(
-            'Select a plugin from the list to view and edit its preferences.'
-          )}
-        </span>
-      </React.Fragment>
+      <SettingsEditorPlaceholder translator={this.translator} />
     ));
     instructions.addClass('jp-SettingEditorInstructions');
     const editor = (this._editor = new PluginEditor({
@@ -336,9 +316,8 @@ export class JsonSettingEditor extends SplitPanel {
   private _instructions: Widget;
   private _list: PluginList;
   private _saving = false;
-  private _state: JsonSettingEditor.ILayoutState = JSONExt.deepCopy(
-    DEFAULT_LAYOUT
-  );
+  private _state: JsonSettingEditor.ILayoutState =
+    JSONExt.deepCopy(DEFAULT_LAYOUT);
   private _when: Promise<any>;
 }
 
diff --git a/packages/settingeditor/src/plugineditor.ts b/packages/settingeditor/src/plugineditor.ts
index 7f8e4ad81e64..50c4a6419f90 100644
--- a/packages/settingeditor/src/plugineditor.ts
+++ b/packages/settingeditor/src/plugineditor.ts
@@ -38,13 +38,8 @@ export class PluginEditor extends Widget {
     super();
     this.addClass(PLUGIN_EDITOR_CLASS);
 
-    const {
-      commands,
-      editorFactory,
-      registry,
-      rendermime,
-      translator
-    } = options;
+    const { commands, editorFactory, registry, rendermime, translator } =
+      options;
     this.translator = translator || nullTranslator;
     this._trans = this.translator.load('jupyterlab');
 
@@ -250,7 +245,10 @@ namespace Private {
   /**
    * Handle save errors.
    */
-  export function onSaveError(reason: any, translator?: ITranslator): void {
+  export function onSaveError(
+    reason: Dialog.IError,
+    translator?: ITranslator
+  ): void {
     translator = translator || nullTranslator;
     const trans = translator.load('jupyterlab');
     console.error(`Saving setting editor value failed: ${reason.message}`);
diff --git a/packages/settingeditor/src/pluginlist.tsx b/packages/settingeditor/src/pluginlist.tsx
index 89a97ccf57e6..d6629cdcb0c4 100644
--- a/packages/settingeditor/src/pluginlist.tsx
+++ b/packages/settingeditor/src/pluginlist.tsx
@@ -3,20 +3,25 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+import React from 'react';
+
+import { ReactWidget } from '@jupyterlab/apputils';
+import { ISettingRegistry, Settings } from '@jupyterlab/settingregistry';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import {
+  classes,
   FilterBox,
   IScore,
-  ReactWidget,
+  LabIcon,
+  settingsIcon,
   updateFilterFunction
-} from '@jupyterlab/apputils';
-import { ISettingRegistry, Settings } from '@jupyterlab/settingregistry';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { classes, LabIcon, settingsIcon } from '@jupyterlab/ui-components';
+} from '@jupyterlab/ui-components';
 import { StringExt } from '@lumino/algorithm';
 import { PartialJSONObject } from '@lumino/coreutils';
 import { Message } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
-import React from 'react';
+
+import type { SettingsEditor } from './settingseditor';
 
 /**
  * The JupyterLab plugin schema key for the setting editor
@@ -54,10 +59,12 @@ export class PluginList extends ReactWidget {
     }, this);
     this.mapPlugins = this.mapPlugins.bind(this);
     this.setFilter = this.setFilter.bind(this);
-    this.setFilter(updateFilterFunction(options.query ?? '', false, false));
+    this.setFilter(
+      options.query ? updateFilterFunction(options.query, false, false) : null
+    );
     this.setError = this.setError.bind(this);
     this._evtMousedown = this._evtMousedown.bind(this);
-    this._query = options.query;
+    this._query = options.query ?? '';
 
     this._allPlugins = PluginList.sortPlugins(this.registry).filter(plugin => {
       const { schema } = plugin;
@@ -89,7 +96,6 @@ export class PluginList extends ReactWidget {
     void loadSettings();
 
     this._errors = {};
-    this.selection = this._allPlugins[0].id;
   }
 
   /**
@@ -120,7 +126,7 @@ export class PluginList extends ReactWidget {
     return false;
   }
 
-  get filter(): (item: ISettingRegistry.IPlugin) => string[] | null {
+  get filter(): SettingsEditor.PluginSearchFilter {
     return this._filter;
   }
 
@@ -138,10 +144,7 @@ export class PluginList extends ReactWidget {
   /**
    * Signal that fires when search filter is updated so that settings panel can filter results.
    */
-  get updateFilterSignal(): ISignal<
-    this,
-    (plugin: ISettingRegistry.IPlugin) => string[] | null
-  > {
+  get updateFilterSignal(): ISignal<this, SettingsEditor.PluginSearchFilter> {
     return this._updateFilterSignal;
   }
 
@@ -240,7 +243,7 @@ export class PluginList extends ReactWidget {
    * @returns - String array of properties that match the search results.
    */
   getFilterString(
-    filter: (item: string) => boolean | Partial<IScore> | null,
+    filter: (item: string) => Partial<IScore> | null,
     props: ISettingRegistry.IProperty,
     definitions?: any,
     ref?: string
@@ -319,20 +322,24 @@ export class PluginList extends ReactWidget {
    * @param filter Filter function passed by search bar based on search value.
    */
   setFilter(
-    filter: (item: string) => boolean | Partial<IScore> | null,
+    filter: ((item: string) => Partial<IScore> | null) | null,
     query?: string
   ): void {
-    this._filter = (plugin: ISettingRegistry.IPlugin): string[] | null => {
-      if (filter(plugin.schema.title ?? '')) {
-        return null;
-      }
-      const filtered = this.getFilterString(
-        filter,
-        plugin.schema ?? {},
-        plugin.schema.definitions
-      );
-      return filtered;
-    };
+    if (filter) {
+      this._filter = (plugin: ISettingRegistry.IPlugin): string[] | null => {
+        if (!filter || filter(plugin.schema.title ?? '')) {
+          return null;
+        }
+        const filtered = this.getFilterString(
+          filter,
+          plugin.schema ?? {},
+          plugin.schema.definitions
+        );
+        return filtered;
+      };
+    } else {
+      this._filter = null;
+    }
     this._query = query;
     this._updateFilterSignal.emit(this._filter);
     this.update();
@@ -371,20 +378,22 @@ export class PluginList extends ReactWidget {
     const icon = this.getHint(ICON_KEY, this.registry, plugin);
     const iconClass = this.getHint(ICON_CLASS_KEY, this.registry, plugin);
     const iconTitle = this.getHint(ICON_LABEL_KEY, this.registry, plugin);
-    const filteredProperties = this._filter(plugin)?.map(fieldValue => {
-      const highlightedIndices = StringExt.matchSumOfSquares(
-        fieldValue.toLocaleLowerCase(),
-        this._query?.toLocaleLowerCase() ?? ''
-      );
-      const highlighted = StringExt.highlight(
-        fieldValue,
-        highlightedIndices?.indices ?? [],
-        chunk => {
-          return <mark>{chunk}</mark>;
-        }
-      );
-      return <li key={`${id}-${fieldValue}`}> {highlighted} </li>;
-    });
+    const filteredProperties = this._filter
+      ? this._filter(plugin)?.map(fieldValue => {
+          const highlightedIndices = StringExt.matchSumOfSquares(
+            fieldValue.toLocaleLowerCase(),
+            this._query?.toLocaleLowerCase() ?? ''
+          );
+          const highlighted = StringExt.highlight(
+            fieldValue,
+            highlightedIndices?.indices ?? [],
+            chunk => {
+              return <mark>{chunk}</mark>;
+            }
+          );
+          return <li key={`${id}-${fieldValue}`}> {highlighted} </li>;
+        })
+      : undefined;
 
     return (
       <div
@@ -420,6 +429,9 @@ export class PluginList extends ReactWidget {
     const trans = this.translator.load('jupyterlab');
     // Filter all plugins based on search value before displaying list.
     const allPlugins = this._allPlugins.filter(plugin => {
+      if (!this._filter) {
+        return false;
+      }
       const filtered = this._filter(plugin);
       return filtered === null || filtered.length > 0;
     });
@@ -468,12 +480,12 @@ export class PluginList extends ReactWidget {
   protected translator: ITranslator;
   private _changed = new Signal<this, void>(this);
   private _errors: { [id: string]: boolean };
-  private _filter: (item: ISettingRegistry.IPlugin) => string[] | null;
+  private _filter: SettingsEditor.PluginSearchFilter;
   private _query: string | undefined;
   private _handleSelectSignal = new Signal<this, string>(this);
   private _updateFilterSignal = new Signal<
     this,
-    (plugin: ISettingRegistry.IPlugin) => string[] | null
+    SettingsEditor.PluginSearchFilter
   >(this);
   private _allPlugins: ISettingRegistry.IPlugin[] = [];
   private _settings: { [id: string]: Settings } = {};
diff --git a/packages/settingeditor/src/raweditor.ts b/packages/settingeditor/src/raweditor.ts
index b418d6d2e6c2..30add320f43f 100644
--- a/packages/settingeditor/src/raweditor.ts
+++ b/packages/settingeditor/src/raweditor.ts
@@ -1,17 +1,16 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { CommandToolbarButton, Toolbar } from '@jupyterlab/apputils';
 import { CodeEditor, CodeEditorWrapper } from '@jupyterlab/codeeditor';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { CommandToolbarButton, Toolbar } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { Message } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
-import { BoxLayout, Widget } from '@lumino/widgets';
+import { BoxLayout, SplitPanel, Widget } from '@lumino/widgets';
 import { createInspector } from './inspector';
-import { SplitPanel } from './splitpanel';
 
 /**
  * A class name added to all raw editors.
@@ -49,24 +48,24 @@ export class RawEditor extends SplitPanel {
 
     // Create read-only defaults editor.
     const defaults = (this._defaults = new CodeEditorWrapper({
-      model: new CodeEditor.Model(),
+      editorOptions: {
+        config: { readOnly: true }
+      },
+      model: new CodeEditor.Model({ mimeType: 'text/javascript' }),
       factory: editorFactory
     }));
 
-    defaults.editor.model.value.text = '';
-    defaults.editor.model.mimeType = 'text/javascript';
-    defaults.editor.setOption('readOnly', true);
-
     // Create read-write user settings editor.
     const user = (this._user = new CodeEditorWrapper({
-      model: new CodeEditor.Model(),
-      factory: editorFactory,
-      config: { lineNumbers: true }
+      editorOptions: {
+        config: { lineNumbers: true }
+      },
+      model: new CodeEditor.Model({ mimeType: 'text/javascript' }),
+      factory: editorFactory
     }));
 
     user.addClass(USER_CLASS);
-    user.editor.model.mimeType = 'text/javascript';
-    user.editor.model.value.changed.connect(this._onTextChanged, this);
+    user.editor.model.sharedModel.changed.connect(this._onTextChanged, this);
 
     // Create and set up an inspector.
     this._inspector = createInspector(
@@ -76,7 +75,6 @@ export class RawEditor extends SplitPanel {
     );
 
     this.addClass(RAW_EDITOR_CLASS);
-    // FIXME-TRANS: onSaveError must have an optional translator?
     this._onSaveError = options.onSaveError;
     this.addWidget(Private.defaultsEditor(defaults, this.translator));
     this.addWidget(
@@ -114,7 +112,10 @@ export class RawEditor extends SplitPanel {
    * Tests whether the settings have been modified and need saving.
    */
   get isDirty(): boolean {
-    return this._user.editor.model.value.text !== this._settings?.raw ?? '';
+    return (
+      this._user.editor.model.sharedModel.getSource() !== this._settings?.raw ??
+      ''
+    );
   }
 
   /**
@@ -149,8 +150,8 @@ export class RawEditor extends SplitPanel {
       this._onSettingsChanged();
     } else {
       this._settings = null;
-      defaults.editor.model.value.text = '';
-      user.editor.model.value.text = '';
+      defaults.editor.model.sharedModel.setSource('');
+      user.editor.model.sharedModel.setSource('');
     }
 
     this.update();
@@ -181,16 +182,18 @@ export class RawEditor extends SplitPanel {
       return;
     }
 
-    super.dispose();
+    this._defaults.model.dispose();
     this._defaults.dispose();
+    this._user.model.dispose();
     this._user.dispose();
+    super.dispose();
   }
 
   /**
    * Revert the editor back to original settings.
    */
   revert(): void {
-    this._user.editor.model.value.text = this.settings?.raw ?? '';
+    this._user.editor.model.sharedModel.setSource(this.settings?.raw ?? '');
     this._updateToolbar(false, false);
   }
 
@@ -203,7 +206,7 @@ export class RawEditor extends SplitPanel {
     }
 
     const settings = this._settings;
-    const source = this._user.editor.model.value.text;
+    const source = this._user.editor.model.sharedModel.getSource();
 
     return settings
       .save(source)
@@ -224,25 +227,11 @@ export class RawEditor extends SplitPanel {
     this.update();
   }
 
-  /**
-   * Handle `'update-request'` messages.
-   */
-  protected onUpdateRequest(msg: Message): void {
-    const settings = this._settings;
-    const defaults = this._defaults;
-    const user = this._user;
-
-    if (settings) {
-      defaults.editor.refresh();
-      user.editor.refresh();
-    }
-  }
-
   /**
    * Handle text changes in the underlying editor.
    */
   private _onTextChanged(): void {
-    const raw = this._user.editor.model.value.text;
+    const raw = this._user.editor.model.sharedModel.getSource();
     const settings = this._settings;
 
     this.removeClass(ERROR_CLASS);
@@ -272,8 +261,10 @@ export class RawEditor extends SplitPanel {
     const defaults = this._defaults;
     const user = this._user;
 
-    defaults.editor.model.value.text = settings?.annotatedDefaults() ?? '';
-    user.editor.model.value.text = settings?.raw ?? '';
+    defaults.editor.model.sharedModel.setSource(
+      settings?.annotatedDefaults() ?? ''
+    );
+    user.editor.model.sharedModel.setSource(settings?.raw ?? '');
   }
 
   private _updateToolbar(revert = this._canRevert, save = this._canSave): void {
@@ -338,7 +329,7 @@ export namespace RawEditor {
     /**
      * A function the raw editor calls on save errors.
      */
-    onSaveError: (reason: any) => void;
+    onSaveError: (reason: any, translator?: ITranslator) => void;
 
     /**
      * The setting registry used by the editor.
diff --git a/packages/settingeditor/src/settingseditor.tsx b/packages/settingeditor/src/settingseditor.tsx
index 89a32d4bb355..3cf07bb23cc7 100644
--- a/packages/settingeditor/src/settingseditor.tsx
+++ b/packages/settingeditor/src/settingseditor.tsx
@@ -1,9 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { ILabStatus } from '@jupyterlab/application';
-import { ReactWidget, showDialog } from '@jupyterlab/apputils';
+import { showDialog } from '@jupyterlab/apputils';
 import { ISettingRegistry, Settings } from '@jupyterlab/settingregistry';
 import { IStateDB } from '@jupyterlab/statedb';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { IFormComponentRegistry } from '@jupyterlab/ui-components';
+import { IFormRendererRegistry, ReactWidget } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { IDisposable } from '@lumino/disposable';
 import { Message } from '@lumino/messaging';
@@ -156,6 +161,13 @@ export namespace SettingsEditor {
    */
   export type SaveState = 'started' | 'failed' | 'completed';
 
+  /**
+   *
+   */
+  export type PluginSearchFilter =
+    | ((plugin: ISettingRegistry.IPlugin) => string[] | null)
+    | null;
+
   /**
    * Settings editor options
    */
@@ -163,7 +175,7 @@ export namespace SettingsEditor {
     /**
      * Form component registry
      */
-    editorRegistry: IFormComponentRegistry;
+    editorRegistry: IFormRendererRegistry;
 
     /**
      * The state database key for the editor's state management.
diff --git a/packages/settingeditor/src/settingspanel.tsx b/packages/settingeditor/src/settingspanel.tsx
index f43598537176..5de1570c7ec3 100644
--- a/packages/settingeditor/src/settingspanel.tsx
+++ b/packages/settingeditor/src/settingspanel.tsx
@@ -3,14 +3,18 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { ISettingRegistry, Settings } from '@jupyterlab/settingregistry';
+import React, { useEffect, useState } from 'react';
+
+import { Settings } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
-import { IFormComponentRegistry } from '@jupyterlab/ui-components';
+import { IFormRendererRegistry } from '@jupyterlab/ui-components';
 import { ISignal } from '@lumino/signaling';
-import React, { useEffect, useState } from 'react';
 import { PluginList } from './pluginlist';
 import { SettingsFormEditor } from './SettingsFormEditor';
+import { SettingsEditorPlaceholder } from './InstructionsPlaceholder';
 
+import type { Field } from '@rjsf/utils';
+import type { SettingsEditor } from './settingseditor';
 export interface ISettingsPanelProps {
   /**
    * List of Settings objects that provide schema and values
@@ -22,7 +26,7 @@ export interface ISettingsPanelProps {
    * Form component registry that provides renderers
    * for the form editor.
    */
-  editorRegistry: IFormComponentRegistry;
+  editorRegistry: IFormRendererRegistry;
 
   /**
    * Handler for when selection change is triggered by scrolling
@@ -54,16 +58,13 @@ export interface ISettingsPanelProps {
   /**
    * Signal that sends updated filter when search value changes.
    */
-  updateFilterSignal: ISignal<
-    PluginList,
-    (plugin: ISettingRegistry.IPlugin) => string[] | null
-  >;
+  updateFilterSignal: ISignal<PluginList, SettingsEditor.PluginSearchFilter>;
 
   /**
    * If the settings editor is created with an initial search query, an initial
    * filter function is passed to the settings panel.
    */
-  initialFilter: (item: ISettingRegistry.IPlugin) => string[] | null;
+  initialFilter: SettingsEditor.PluginSearchFilter;
 }
 
 /**
@@ -81,18 +82,10 @@ export const SettingsPanel: React.FC<ISettingsPanelProps> = ({
   translator,
   initialFilter
 }: ISettingsPanelProps): JSX.Element => {
-  const [expandedPlugin, setExpandedPlugin] = useState<string | null>(null);
-  const [filterPlugin, setFilter] = useState<
-    (plugin: ISettingRegistry.IPlugin) => string[] | null
-  >(() => initialFilter);
-
-  // Refs used to keep track of "selected" plugin based on scroll location
-  const editorRefs: {
-    [pluginId: string]: React.RefObject<HTMLDivElement>;
-  } = {};
-  for (const setting of settings) {
-    editorRefs[setting.id] = React.useRef(null);
-  }
+  const [activePluginId, setActivePluginId] = useState<string | null>(null);
+  const [filterPlugin, setFilter] = useState<SettingsEditor.PluginSearchFilter>(
+    initialFilter ? () => initialFilter : null
+  );
   const wrapperRef: React.RefObject<HTMLDivElement> = React.useRef(null);
   const editorDirtyStates: React.RefObject<{
     [id: string]: boolean;
@@ -101,34 +94,16 @@ export const SettingsPanel: React.FC<ISettingsPanelProps> = ({
   useEffect(() => {
     const onFilterUpdate = (
       list: PluginList,
-      newFilter: (plugin: ISettingRegistry.IPlugin) => string[] | null
+      newFilter: SettingsEditor.PluginSearchFilter
     ) => {
-      setFilter(() => newFilter);
-      for (const pluginSettings of settings) {
-        const filtered = newFilter(pluginSettings.plugin);
-        if (filtered === null || filtered.length > 0) {
-          setExpandedPlugin(pluginSettings.id);
-          break;
-        }
-      }
+      newFilter ? setFilter(() => newFilter) : setFilter(null);
     };
 
-    // Set first visible plugin as expanded plugin on initial load.
-    for (const pluginSettings of settings) {
-      const filtered = filterPlugin(pluginSettings.plugin);
-      if (filtered === null || filtered.length > 0) {
-        setExpandedPlugin(pluginSettings.id);
-        break;
-      }
-    }
-
     // When filter updates, only show plugins that match search.
     updateFilterSignal.connect(onFilterUpdate);
 
     const onSelectChange = (list: PluginList, pluginId: string) => {
-      setExpandedPlugin(expandedPlugin !== pluginId ? pluginId : null);
-      // Scroll to the plugin when a selection is made in the left panel.
-      editorRefs[pluginId]?.current?.scrollIntoView(true);
+      setActivePluginId(pluginId);
     };
     handleSelectSignal?.connect?.(onSelectChange);
 
@@ -138,46 +113,68 @@ export const SettingsPanel: React.FC<ISettingsPanelProps> = ({
     };
   }, []);
 
-  const updateDirtyStates = (id: string, dirty: boolean) => {
-    if (editorDirtyStates.current) {
-      editorDirtyStates.current[id] = dirty;
-      for (const editor in editorDirtyStates.current) {
-        if (editorDirtyStates.current[editor]) {
-          updateDirtyState(true);
-          return;
+  const updateDirtyStates = React.useCallback(
+    (id: string, dirty: boolean) => {
+      if (editorDirtyStates.current) {
+        editorDirtyStates.current[id] = dirty;
+        for (const editor in editorDirtyStates.current) {
+          if (editorDirtyStates.current[editor]) {
+            updateDirtyState(true);
+            return;
+          }
         }
       }
-    }
-    updateDirtyState(false);
-  };
+      updateDirtyState(false);
+    },
+    [editorDirtyStates, updateDirtyState]
+  );
+
+  const renderers = React.useMemo(
+    () =>
+      Object.entries(editorRegistry.renderers).reduce<{
+        [plugin: string]: { [property: string]: Field };
+      }>((agg, [id, renderer]) => {
+        const splitPosition = id.lastIndexOf('.');
+        const pluginId = id.substring(0, splitPosition);
+        const propertyName = id.substring(splitPosition + 1);
+        if (!agg[pluginId]) {
+          agg[pluginId] = {};
+        }
+        if (!agg[pluginId][propertyName] && renderer.fieldRenderer) {
+          agg[pluginId][propertyName] = renderer.fieldRenderer;
+        }
+        return agg;
+      }, {}),
+    [editorRegistry]
+  );
+
+  if (!activePluginId && !filterPlugin) {
+    return <SettingsEditorPlaceholder translator={translator} />;
+  }
 
   return (
     <div className="jp-SettingsPanel" ref={wrapperRef}>
       {settings.map(pluginSettings => {
         // Pass filtered results to SettingsFormEditor to only display filtered fields.
-        const filtered = filterPlugin(pluginSettings.plugin);
+        const filtered = filterPlugin
+          ? filterPlugin(pluginSettings.plugin)
+          : null;
         // If filtered results are an array, only show if the array is non-empty.
-        if (filtered !== null && filtered.length === 0) {
+        if (
+          (activePluginId && activePluginId !== pluginSettings.id) ||
+          (filtered !== null && filtered.length === 0)
+        ) {
           return undefined;
         }
         return (
           <div
-            ref={editorRefs[pluginSettings.id]}
             className="jp-SettingsForm"
             key={`${pluginSettings.id}SettingsEditor`}
           >
             <SettingsFormEditor
-              isCollapsed={pluginSettings.id !== expandedPlugin}
-              onCollapseChange={(willCollapse: boolean) => {
-                if (!willCollapse) {
-                  setExpandedPlugin(pluginSettings.id);
-                } else if (pluginSettings.id === expandedPlugin) {
-                  setExpandedPlugin(null);
-                }
-              }}
               filteredValues={filtered}
               settings={pluginSettings}
-              renderers={editorRegistry.renderers}
+              renderers={renderers}
               hasError={(error: boolean) => {
                 hasError(pluginSettings.id, error);
               }}
diff --git a/packages/settingeditor/src/splitpanel.ts b/packages/settingeditor/src/splitpanel.ts
deleted file mode 100644
index 79917037c3a3..000000000000
--- a/packages/settingeditor/src/splitpanel.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-/* -----------------------------------------------------------------------------
-| Copyright (c) Jupyter Development Team.
-| Distributed under the terms of the Modified BSD License.
-|----------------------------------------------------------------------------*/
-
-import { SplitPanel } from '@lumino/widgets';
-
-/**
- * @deprecated alias for `SplitPanel` from `@lumino/widgets`, will be removed in JupyterLab 4.0.
- * Please use `import { SplitPanel } from '@lumino/widgets';` instead.
- */
-export { SplitPanel };
diff --git a/packages/settingeditor/src/tokens.ts b/packages/settingeditor/src/tokens.ts
index 670c0c60f40f..76e518cd8cc5 100644
--- a/packages/settingeditor/src/tokens.ts
+++ b/packages/settingeditor/src/tokens.ts
@@ -6,14 +6,31 @@ import { Token } from '@lumino/coreutils';
 import { JsonSettingEditor as JSONSettingEditor } from './jsonsettingeditor';
 import { SettingsEditor } from './settingseditor';
 
-/* tslint:disable */
 /**
  * The setting editor tracker token.
  */
 export const ISettingEditorTracker = new Token<ISettingEditorTracker>(
-  '@jupyterlab/settingeditor:ISettingEditorTracker'
+  '@jupyterlab/settingeditor:ISettingEditorTracker',
+  `A widget tracker for the interactive setting editor.
+  Use this if you want to be able to iterate over and interact with setting editors
+  created by the application.`
 );
-/* tslint:enable */
+
+/**
+ * The setting editor tracker token.
+ */
+export const IJSONSettingEditorTracker = new Token<IJSONSettingEditorTracker>(
+  '@jupyterlab/settingeditor:IJSONSettingEditorTracker',
+  `A widget tracker for the JSON setting editor.
+  Use this if you want to be able to iterate over and interact with setting editors
+  created by the application.`
+);
+
+/**
+ * A class that tracks the setting editor.
+ */
+export interface IJSONSettingEditorTracker
+  extends IWidgetTracker<MainAreaWidget<JSONSettingEditor>> {}
 
 /**
  * The setting editor tracker token.
diff --git a/packages/settingeditor/style/base.css b/packages/settingeditor/style/base.css
index e6476cead209..8f2a997035a5 100644
--- a/packages/settingeditor/style/base.css
+++ b/packages/settingeditor/style/base.css
@@ -11,6 +11,7 @@
   --jp-private-settingeditor-toolbar-height: 28px;
   --jp-private-settingeditor-type-width: 75px;
   --jp-private-settingeditor-modifier-indent: 5px;
+  --jp-private-settingeditor-header-spacing: 8px;
 }
 
 .jp-SettingsPanel,
@@ -18,9 +19,10 @@
   min-width: 360px;
   min-height: 240px;
   background-color: var(--jp-layout-color0);
+  color: var(--jp-ui-font-color0);
   margin-top: -1px;
   outline: none;
-  color: var(--jp-content-font-color1) !important;
+
   /* This is needed so that all font sizing of children done in ems is
    * relative to this base size */
   font-size: var(--jp-ui-font-size1);
@@ -40,29 +42,7 @@
   background-color: var(--jp-border-color2);
 }
 
-#json-setting-editor .jp-SettingEditorInstructions {
-  text-align: center;
-}
-
-#json-setting-editor .jp-SettingEditorInstructions-icon {
-  display: inline-block;
-  height: 78px;
-  margin: 2px 5px 2px 8px;
-  width: 60px;
-}
-
-#json-setting-editor .jp-SettingEditorInstructions-title {
-  color: var(--jp-ui-font-color0);
-  font-size: 32px;
-  font-weight: 200;
-  line-height: 78px;
-  vertical-align: top;
-}
-
-#json-setting-editor .jp-SettingEditorInstructions-text {
-  color: var(--jp-ui-font-color0);
-  font-size: var(--jp-ui-font-size2);
-}
+/** Plugin list **/
 
 .jp-PluginList {
   min-width: 175px;
@@ -92,6 +72,7 @@
 .jp-PluginList .jp-PluginList-header {
   border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
   border-top: var(--jp-border-width) solid var(--jp-border-color2);
+  color: var(--jp-ui-font-color1);
 }
 
 .jp-PluginList .jp-PluginList-noResults,
@@ -105,7 +86,7 @@
   margin: 10px;
   border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
   border-top: var(--jp-border-width) solid var(--jp-border-color2);
-  color: var(--jp-content-font-color1);
+  color: var(--jp-ui-font-color1);
 }
 
 .jp-PluginList .jp-SelectedIndicator {
@@ -123,43 +104,60 @@
   background-color: var(--jp-error-color0);
 }
 
-.jp-PluginList button.jp-mod-selected.jp-ErrorPlugin span {
-  color: var(--jp-error-color0);
+.jp-PluginList-icon {
+  display: flex;
+  height: 20px;
+  width: 20px;
+  margin-right: 3px;
+  position: relative;
+}
+
+.jp-PluginList-wrapper > .jp-FilterBox {
+  margin: 8px 12px 0;
 }
 
-.jp-PluginList button.jp-mod-selected span {
-  font-weight: var(--jp-content-heading-font-weight);
-  color: var(--jp-brand-color1);
+.jp-PluginList mark {
+  background-color: transparent;
+  font-weight: bold;
+  color: var(--jp-ui-font-color1);
 }
 
-.jp-FormComponent li span {
+.jp-PluginList-entry {
+  display: flex;
+  flex-direction: column;
+  border: 1px solid transparent;
+  background: transparent;
   overflow: hidden;
+  padding: 4px 0 4px 4px;
+  white-space: nowrap;
 }
 
-.jp-SettingEditor-header {
-  font-size: var(--jp-content-font-size4);
-  font-weight: var(--jp-content-heading-font-weight);
-  color: var(--jp-ui-font-color0);
-  padding: 20px 0 10px 20px;
-  border-bottom: 1px solid var(--jp-border-color2);
-  position: sticky;
-  top: 0;
-  z-index: 999;
-  background-color: var(--jp-layout-color0);
+.jp-PluginList-entry:hover {
+  background: var(--jp-layout-color1);
 }
 
-ul.jp-PluginList li.jp-mod-selected span.jp-PluginList-icon.jp-FileIcon {
-  background-image: var(--jp-icon-file-selected);
+.jp-PluginList-entry li {
+  margin-left: 27px;
+  margin-top: 5px;
+  color: var(--jp-ui-font-color1);
+  overflow-x: hidden;
+  text-overflow: ellipsis;
 }
 
-.jp-PluginList-icon {
+.jp-PluginList-entry-label {
   display: flex;
-  height: 20px;
-  width: 20px;
-  margin-right: 3px;
-  position: relative;
 }
 
+.jp-PluginList-entry-label-text {
+  text-overflow: ellipsis;
+  overflow-x: hidden;
+  white-space: nowrap;
+  color: var(--jp-ui-font-color1);
+  line-height: var(--jp-cell-collapser-min-height);
+}
+
+/** Raw editor **/
+
 .jp-SettingsRawEditor .jp-Toolbar {
   color: var(--jp-ui-font-color0);
   font-size: var(--jp-ui-font-size1);
@@ -176,19 +174,6 @@ ul.jp-PluginList li.jp-mod-selected span.jp-PluginList-icon.jp-FileIcon {
   align-items: center;
 }
 
-.jp-ToolbarButtonComponent-label
-  .jp-SettingsRawEditor.jp-mod-error
-  .jp-Toolbar-item.jp-BugIcon::after {
-  color: red;
-  content: '\25CF'; /* Unicode circle character (error dot) */
-  font-size: 7px;
-  width: 100%;
-  height: 100%;
-  position: absolute;
-  top: 4px;
-  left: 6px;
-}
-
 .jp-SettingsRawEditor .jp-Inspector {
   border-top: 2px solid var(--jp-layout-color2);
   min-height: var(--jp-private-settingeditor-debug-height);
@@ -204,40 +189,11 @@ ul.jp-PluginList li.jp-mod-selected span.jp-PluginList-icon.jp-FileIcon {
   text-align: right;
 }
 
-.jp-SettingsPanel fieldset input,
-.jp-SettingsPanel fieldset select,
-.jp-SettingsPanel fieldset textarea {
-  font-size: var(--jp-content-font-size2);
-  border-color: var(--jp-input-border-color);
-  border-style: solid;
-  border-radius: var(--jp-border-radius);
-  border-width: 1px;
-  padding: 6px 8px;
-  background: none;
-  color: var(--jp-content-font-color0);
-  height: inherit;
-}
-
-.jp-SettingsPanel fieldset input[type='checkbox'] {
-  position: relative;
-  top: 2px;
-  margin-left: 0;
-}
-
-/** copy of `input.jp-mod-styled:focus` style */
-.jp-SettingsPanel fieldset input:focus,
-.jp-SettingsPanel fieldset select:focus,
-.jp-SettingsPanel fieldset textarea:focus {
-  -moz-outline-radius: unset;
-  outline: var(--jp-border-width) solid var(--md-blue-500);
-  outline-offset: -1px;
-  box-shadow: inset 0 0 4px var(--md-blue-300);
+.jp-SettingsRawEditor .cm-editor {
+  height: 100%;
 }
 
-.jp-SettingsPanel .checkbox label {
-  cursor: pointer;
-  font-size: var(--jp-content-font-size1);
-}
+/** Panel **/
 
 .jp-SettingsPanel .checkbox p {
   font-size: var(--jp-content-font-size1);
@@ -248,283 +204,84 @@ ul.jp-PluginList li.jp-mod-selected span.jp-PluginList-icon.jp-FileIcon {
   flex-direction: column-reverse;
 }
 
-.jp-SettingsPanel .checkbox .field-description {
-  /* Disable default description field for checkbox:
-   because other widgets do not have description fields,
-   we add descriptions to each widget on the field level.
-  */
-  display: none;
-}
-
-.jp-SettingsPanel button[type='submit'] {
-  display: none;
-}
-
 .jp-SettingsPanel .form-group {
   display: flex;
   padding: 4px 8px 4px var(--jp-private-settingeditor-modifier-indent);
   margin-top: 5px;
 }
 
-.jp-SettingsPanel .jp-objectFieldWrapper .form-group {
-  padding: 2px 8px 2px var(--jp-private-settingeditor-modifier-indent);
-  margin-top: 2px;
-}
-
-.jp-ArrayOperations {
-  margin-left: 8px;
-}
-
-.jp-SettingsPanel .jp-FormGroup-content {
-  display: flex;
-  align-items: center;
-  flex-wrap: wrap;
-}
-
-.jp-SettingsPanel .jp-FormGroup-contentItem {
-  margin-left: 7px;
-}
-
-.jp-SettingsPanel .jp-FormGroup-description {
-  flex-basis: 100%;
-  padding: 4px 7px;
-}
-
-.jp-SettingsPanel .jp-FormGroup-default {
-  flex-basis: 100%;
-  padding: 4px 7px;
-}
-
-.jp-SettingsPanel #root__description {
-  display: none;
-}
-
-.jp-SettingsPanel fieldset {
-  border: none;
-  padding: 0;
-}
-
-.jp-SettingsPanel fieldset:not(:first-child) {
-  margin-left: 7px;
-}
-
-.jp-SettingsPanel .jp-SaveSettingsBanner {
-  position: absolute;
-  bottom: 0;
+.jp-SettingsPanel .jp-SettingsEditor {
   padding: 20px;
-  width: 100%;
-  background: var(--jp-border-color3);
-}
-
-.jp-SettingsPanel .jp-SaveSettingsBanner button {
-  box-shadow: none;
-  outline: none;
-  border: none;
-  color: var(--jp-brand-color1);
-  font-size: var(--jp-ui-font-size1);
-  cursor: pointer;
 }
 
-.jp-SettingsPanel .jp-SaveSettingsBanner button:hover {
-  color: var(--jp-brand-color0);
-}
-
-.jp-SettingsPanel .form-group.small-field:hover {
-  background: var(--jp-border-color3);
-}
-
-.jp-SettingsPanel button.jp-mod-styled {
-  cursor: pointer;
-}
-
-.jp-SettingsPanel button.jp-mod-styled:disabled {
-  cursor: not-allowed;
-  opacity: 0.5;
-}
-
-.jp-SettingsPanel .array-item button {
-  margin: 2px;
-}
-
-.jp-SettingsPanel .array-item {
-  border: 1px solid var(--jp-border-color2);
-  border-radius: 4px;
-  margin: 4px;
-}
-
-.jp-SettingsPanel .field-array-of-string .array-item {
-  /* Display `jp-ArrayOperations` buttons side-by-side with content except
-    for small screens where flex-wrap will place them one below the other.
-  */
-  display: flex;
-  align-items: center;
-  flex-wrap: wrap;
-}
-
-.jp-SettingsPanel .jp-root > fieldset > legend {
-  display: none;
-}
-
-.jp-SettingsPanel .jp-root > fieldset > p {
-  display: none;
-}
-
-.jp-SettingsPanel .jp-SettingsHeader h2 {
-  font-size: var(--jp-content-font-size3);
-  color: var(--jp-ui-font-color0);
-  font-weight: 300;
-  margin: 1em;
-}
-
-.jp-SettingsPanel .jp-SettingsHeader-description {
-  font-size: var(--jp-content-font-size2);
-  color: var(--jp-ui-font-color1);
-  font-weight: 200;
-  margin: 1em;
-  line-height: var(--jp-content-font-size3);
-}
-
-.jp-SettingsPanel legend {
-  font-size: var(--jp-content-font-size2);
-  color: var(--jp-ui-font-color0);
-  flex-basis: 100%;
-  padding: 4px 0;
-  font-weight: var(--jp-content-header-font-weight);
-  border-bottom: 1px solid var(--jp-border-color2);
-}
-
-.jp-SettingsPanel .field-description {
-  padding: 4px 0;
-  white-space: pre-wrap;
-}
-
-.jp-SettingsPanel .jp-SettingsTitle {
-  display: flex;
-  align-items: center;
-  padding-left: 1em;
-}
-
-.jp-SettingsPanel .jp-SettingsTitle-caret {
-  width: 2em;
-  flex-shrink: 0;
+.jp-SettingsPanel {
+  overflow-y: auto;
+  height: 100%;
 }
 
 .jp-SettingsForm {
   position: relative;
 }
 
-.jp-SettingsPanel .jp-SettingsHeader {
-  display: flex;
-  flex: auto;
-  justify-content: space-between;
-  cursor: pointer;
-  border: 1px solid var(--jp-border-color2);
-}
-
-.jp-PluginList .jp-FilterBox {
-  margin: 8px 12px 0px 12px;
-}
-
-.jp-PluginList mark {
-  background-color: transparent;
-  font-weight: bold;
-  color: var(--jp-ui-font-color1);
-}
-
-.jp-PluginList-entry {
-  display: flex;
-  flex-direction: column;
-  border: 1px solid transparent;
-  background: transparent;
-  overflow: hidden;
-  padding: 4px 0 4px 4px;
-  white-space: nowrap;
-}
-
-.jp-PluginList-entry:hover {
-  background: var(--jp-layout-color1);
-}
-
-.jp-PluginList-entry li {
-  margin-left: 27px;
-  margin-top: 5px;
-  color: var(--jp-ui-font-color1);
-  overflow-x: hidden;
-  text-overflow: ellipsis;
+.jp-SettingsForm > .rjsf > .form-group {
+  padding-top: 0;
+  margin-top: 0;
 }
 
-.jp-PluginList-entry-label {
-  display: flex;
-}
+/** Settings header **/
 
-.jp-PluginList-entry-label-text {
-  text-overflow: ellipsis;
-  overflow-x: hidden;
-  white-space: nowrap;
-  color: var(--jp-content-font-color1);
-  line-height: var(--jp-cell-collapser-min-height);
+.jp-SettingsHeader {
+  display: grid;
+  grid-template:
+    'title buttonbar'
+    'description buttonbar';
+  grid-template-columns: 1fr max-content;
+  padding: 0 var(--jp-private-settingeditor-header-spacing);
+  border-bottom: 1px solid var(--jp-border-color2);
 }
 
-.jp-SettingsPanel .jp-SettingsHeader-Name {
-  text-transform: inherit;
+.jp-SettingsHeader-title {
   font-size: var(--jp-content-font-size3);
+  color: var(--jp-ui-font-color0);
+  font-weight: 400;
+  grid-area: title;
+  padding: 0;
+  margin-top: calc(var(--jp-private-settingeditor-header-spacing) * 2);
+  margin-bottom: calc(var(--jp-private-settingeditor-header-spacing) / 2);
 }
 
-.jp-SettingsPanel .jp-modifiedIndicator {
-  width: 5px;
-  background-color: var(--jp-brand-color2);
-  margin-top: 0;
-  margin-left: calc(var(--jp-private-settingeditor-modifier-indent) * -1);
-  flex-shrink: 0;
-}
-
-.jp-SettingsPanel .jp-FormGroup-fieldLabel {
-  font-size: var(--jp-content-font-size1);
-  font-weight: normal;
-  min-width: 120px;
-}
-
-.jp-SettingsPanel .jp-modifiedIndicator.jp-errorIndicator {
-  background-color: var(--jp-error-color0);
+.jp-SettingsHeader-description {
+  grid-area: description;
+  padding-bottom: var(--jp-private-settingeditor-header-spacing);
+  color: var(--jp-ui-font-color1);
 }
 
-.jp-SettingsPanel .validationErrors {
-  color: var(--jp-error-color0);
+.jp-SettingsHeader-buttonbar {
+  margin: auto var(--jp-private-settingeditor-header-spacing);
+  grid-row: span 2;
 }
 
-.jp-SettingsPanel .panel.errors {
-  display: none;
+.jp-SettingsHeader-buttonbar > .jp-RestoreButton {
+  background-color: var(--jp-warn-color-normal);
+  border: 0;
+  color: var(--jp-ui-inverse-font-color0);
 }
 
-.jp-SettingsPanel .jp-SettingsEditor {
-  padding: 20px;
+.jp-PluginEditor {
+  overflow: auto;
 }
 
-.jp-SettingsPanel .jp-SettingEditor-Switch .jp-switch {
-  position: absolute;
-  bottom: 0;
-  z-index: 999;
-  background-color: var(--jp-border-color3);
-  border: 1px solid var(--jp-border-color1);
-}
+/** Placeholder **/
 
-.jp-SettingsPanel {
-  overflow-y: auto;
-  height: 100%;
+.jp-SettingsEditor-placeholder {
+  text-align: center;
 }
 
-.jp-SettingsForm button.jp-RestoreButton {
-  white-space: nowrap;
-  background: none;
-  border: none;
-  outline: none;
-  box-shadow: none;
-  font-size: var(--jp-content-font-size2);
-  color: var(--jp-brand-color1);
-  cursor: pointer;
-  margin-right: 5px;
+.jp-SettingsEditor-placeholderContent {
+  color: var(--jp-content-font-color2);
+  padding: 8px;
 }
 
-.jp-PluginEditor {
-  overflow: auto;
+.jp-SettingsEditor-placeholderContent > h3 {
+  margin-bottom: var(--jp-content-heading-margin-bottom);
 }
diff --git a/packages/settingeditor/style/index.css b/packages/settingeditor/style/index.css
index c1dc0aaf298c..3ec7436a26ab 100644
--- a/packages/settingeditor/style/index.css
+++ b/packages/settingeditor/style/index.css
@@ -11,5 +11,4 @@
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
 @import url('~@jupyterlab/inspector/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/settingeditor/test/settingsformeditor.spec.tsx b/packages/settingeditor/test/settingsformeditor.spec.tsx
new file mode 100644
index 000000000000..124f6cf3bfcb
--- /dev/null
+++ b/packages/settingeditor/test/settingsformeditor.spec.tsx
@@ -0,0 +1,123 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+import { nullTranslator } from '@jupyterlab/translation';
+import { SettingsFormEditor } from '../src/SettingsFormEditor';
+import React from 'react';
+import renderer from 'react-test-renderer';
+import { StateDB } from '@jupyterlab/statedb';
+import {
+  ISettingRegistry,
+  SettingRegistry,
+  Settings
+} from '@jupyterlab/settingregistry';
+import { FormComponent } from '@jupyterlab/ui-components';
+
+class TestConnector extends StateDB {
+  schemas: { [key: string]: ISettingRegistry.ISchema } = {};
+
+  async fetch(id: string): Promise<ISettingRegistry.IPlugin | undefined> {
+    const fetched = await super.fetch(id);
+    if (!fetched && !this.schemas[id]) {
+      return undefined;
+    }
+
+    const schema: ISettingRegistry.ISchema = this.schemas[id] || {
+      type: 'object'
+    };
+    const composite = {};
+    const user = {};
+    const raw = (fetched as string) || '{ }';
+    const version = 'test';
+    return { id, data: { composite, user }, raw, schema, version };
+  }
+
+  async list(): Promise<any> {
+    return Promise.reject('list method not implemented');
+  }
+}
+
+describe('@jupyterlab/settingeditor', () => {
+  describe('SettingFormEditor', () => {
+    let connector: TestConnector;
+    let registry: SettingRegistry;
+    let settings: Settings | null;
+
+    beforeAll(() => {
+      connector = new TestConnector();
+    });
+
+    beforeEach(() => {
+      registry = new SettingRegistry({ connector });
+    });
+
+    afterEach(async () => {
+      if (settings) {
+        settings.dispose();
+        settings = null;
+      }
+      connector.schemas = {};
+      await connector.clear();
+    });
+
+    it('should render a dummy schema', async () => {
+      const id = 'alpha';
+      const schema: ISettingRegistry.ISchema = { type: 'object' };
+
+      connector.schemas[id] = schema;
+
+      settings = (await registry.load(id)) as Settings;
+
+      const component = renderer.create(
+        <SettingsFormEditor
+          filteredValues={null}
+          hasError={() => void 0}
+          onSelect={() => void 0}
+          renderers={{}}
+          settings={settings}
+          translator={nullTranslator}
+          updateDirtyState={() => void 0}
+        ></SettingsFormEditor>
+      );
+
+      expect(component).not.toBeNull();
+    });
+
+    it('should render a subset of the schema', async () => {
+      // If
+      const id = 'alpha';
+      const schema: ISettingRegistry.ISchema = {
+        type: 'object',
+        properties: {
+          keyA: { type: 'string', default: 'A' },
+          keyB: { type: 'string', default: 'B' },
+          keyC: { title: 'Third key', type: 'string', default: 'C' },
+          keyD: { type: 'string', default: 'D' }
+        }
+      };
+      connector.schemas[id] = schema;
+      settings = (await registry.load(id)) as Settings;
+
+      // When
+      const component = renderer.create(
+        <SettingsFormEditor
+          // Filter by field and by title
+          filteredValues={['keyA', 'Third key']}
+          hasError={() => void 0}
+          onSelect={() => void 0}
+          renderers={{}}
+          settings={settings}
+          translator={nullTranslator}
+          updateDirtyState={() => void 0}
+        ></SettingsFormEditor>
+      );
+
+      // Then
+      const instance = component.root;
+      const form = instance.findByType(FormComponent);
+      expect(form.props.formData).toEqual({ keyA: 'A', keyC: 'C' });
+      expect(Object.keys(form.props.schema.properties)).toEqual(
+        Object.keys(form.props.formData)
+      );
+    });
+  });
+});
diff --git a/packages/docprovider/tsconfig.test.json b/packages/settingeditor/tsconfig.test.json
similarity index 52%
rename from packages/docprovider/tsconfig.test.json
rename to packages/settingeditor/tsconfig.test.json
index 2a7b9300bb95..e35a07b2631e 100644
--- a/packages/docprovider/tsconfig.test.json
+++ b/packages/settingeditor/tsconfig.test.json
@@ -3,40 +3,37 @@
   "include": ["src/*", "test/*"],
   "references": [
     {
-      "path": "../apputils"
-    },
-    {
-      "path": "../coreutils"
+      "path": "../application"
     },
     {
-      "path": "../services"
+      "path": "../apputils"
     },
     {
-      "path": "../shared-models"
+      "path": "../codeeditor"
     },
     {
-      "path": "../translation"
+      "path": "../inspector"
     },
     {
-      "path": "."
+      "path": "../rendermime"
     },
     {
-      "path": "../../testutils"
+      "path": "../settingregistry"
     },
     {
-      "path": "../apputils"
+      "path": "../statedb"
     },
     {
-      "path": "../coreutils"
+      "path": "../translation"
     },
     {
-      "path": "../services"
+      "path": "../ui-components"
     },
     {
-      "path": "../shared-models"
+      "path": "."
     },
     {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/settingregistry/.vscode/launch.json b/packages/settingregistry/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/settingregistry/.vscode/launch.json
+++ b/packages/settingregistry/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/settingregistry/babel.config.js b/packages/settingregistry/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/settingregistry/babel.config.js
+++ b/packages/settingregistry/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/settingregistry/jest.config.js b/packages/settingregistry/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/settingregistry/jest.config.js
+++ b/packages/settingregistry/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/settingregistry/package.json b/packages/settingregistry/package.json
index 2a714167f493..bf522f0fb796 100644
--- a/packages/settingregistry/package.json
+++ b/packages/settingregistry/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/settingregistry",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "Settings registry for Jupyterlab",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -21,7 +21,9 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}"
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}",
+    "src/plugin-schema.json"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -30,27 +32,30 @@
     "docs": "typedoc src --tsconfig typedoc-tsconfig.json",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/statedb": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "ajv": "^6.12.3",
-    "json5": "^2.1.1"
+    "@jupyterlab/nbformat": "^4.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "@rjsf/utils": "^5.1.0",
+    "ajv": "^8.12.0",
+    "json5": "^2.2.3"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/json5": "^0.0.30",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
+  },
+  "peerDependencies": {
+    "react": ">=16"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/settingregistry/src/plugin-schema.json b/packages/settingregistry/src/plugin-schema.json
index 9b971cc0cdea..1ebcdf421bb7 100644
--- a/packages/settingregistry/src/plugin-schema.json
+++ b/packages/settingregistry/src/plugin-schema.json
@@ -56,6 +56,13 @@
       },
       "additionalProperties": false
     },
+    "jupyter.lab.metadataforms": {
+      "items": {
+        "$ref": "#/definitions/metadataForm"
+      },
+      "type": "array",
+      "default": []
+    },
     "jupyter.lab.setting-deprecated": {
       "type": "boolean",
       "default": false
@@ -280,6 +287,11 @@
           "description": "If defined, it will override the command label",
           "type": "string"
         },
+        "caption": {
+          "title": "Item caption",
+          "description": "If defined, it will override the command caption",
+          "type": "string"
+        },
         "type": {
           "title": "Item type",
           "type": "string",
@@ -295,6 +307,87 @@
       "required": ["name"],
       "additionalProperties": false,
       "type": "object"
+    },
+    "metadataForm": {
+      "type": "object",
+      "properties": {
+        "id": {
+          "type": "string",
+          "description": "The section ID"
+        },
+        "metadataSchema": {
+          "type": "object",
+          "items": {
+            "$ref": "#/definitions/metadataSchema"
+          }
+        },
+        "uiSchema": {
+          "type": "object"
+        },
+        "metadataOptions": {
+          "type": "object",
+          "items": {
+            "$ref": "#/definitions/metadataOptions"
+          }
+        },
+        "label": {
+          "type": "string",
+          "description": "The section label"
+        },
+        "rank": {
+          "type": "integer",
+          "description": "The rank of the section in the right panel"
+        },
+        "showModified": {
+          "type": "boolean",
+          "description": "Whether to show modified values from defaults"
+        }
+      },
+      "required": ["id", "metadataSchema"]
+    },
+    "metadataSchema": {
+      "properties": {
+        "properties": {
+          "type": "object",
+          "description": "The property set up by extension",
+          "properties": {
+            "title": {
+              "type": "string"
+            },
+            "description": {
+              "type": "string"
+            },
+            "type": {
+              "type": "string"
+            }
+          }
+        }
+      },
+      "type": "object",
+      "required": ["properties"]
+    },
+    "metadataOptions": {
+      "properties": {
+        "customRenderer": {
+          "type": "string"
+        },
+        "metadataLevel": {
+          "type": "string",
+          "enum": ["cell", "notebook"],
+          "default": "cell"
+        },
+        "cellTypes": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": ["code", "markdown", "raw"]
+          }
+        },
+        "writeDefault": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
     }
   }
 }
diff --git a/packages/settingregistry/src/settingregistry.ts b/packages/settingregistry/src/settingregistry.ts
index 94a3b80cccf2..c1e71224ff6a 100644
--- a/packages/settingregistry/src/settingregistry.ts
+++ b/packages/settingregistry/src/settingregistry.ts
@@ -16,7 +16,7 @@ import {
 } from '@lumino/coreutils';
 import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
-import Ajv from 'ajv';
+import Ajv, { Options as AjvOptions } from 'ajv';
 import * as json5 from 'json5';
 import SCHEMA from './plugin-schema.json';
 import { ISettingRegistry } from './tokens';
@@ -26,6 +26,18 @@ import { ISettingRegistry } from './tokens';
  */
 const copy = JSONExt.deepCopy;
 
+/** Default arguments for Ajv instances.
+ *
+ * https://ajv.js.org/options.html
+ */
+const AJV_DEFAULT_OPTIONS: Partial<AjvOptions> = {
+  /**
+   * @todo the implications of enabling strict mode are beyond the scope of
+   *       the initial PR
+   */
+  strict: false
+};
+
 /**
  * The default number of milliseconds before a `load()` call to the registry
  * will wait before timing out if it requires a transformation that has not been
@@ -51,7 +63,7 @@ export interface ISchemaValidator {
    * @param populate - Whether plugin data should be populated, defaults to
    * `true`.
    *
-   * @return A list of errors if either the schema or data fail to validate or
+   * @returns A list of errors if either the schema or data fail to validate or
    * `null` if there are no errors.
    */
   validateData(
@@ -68,20 +80,15 @@ export namespace ISchemaValidator {
    * A schema validation error definition.
    */
   export interface IError {
-    /**
-     * The path in the data where the error occurred.
-     */
-    dataPath: string;
-
     /**
      * The keyword whose validation failed.
      */
-    keyword: string;
+    keyword: string | string[];
 
     /**
      * The error message.
      */
-    message: string;
+    message?: string;
 
     /**
      * Optional parameter metadata that might be included in an error.
@@ -92,6 +99,31 @@ export namespace ISchemaValidator {
      * The path in the schema where the error occurred.
      */
     schemaPath: string;
+
+    /**
+     * @todo handle new fields from ajv8
+     **/
+    schema?: unknown;
+
+    /**
+     * @todo handle new fields from ajv8
+     **/
+    instancePath: string;
+
+    /**
+     * @todo handle new fields from ajv8
+     **/
+    propertyName?: string;
+
+    /**
+     * @todo handle new fields from ajv8
+     **/
+    data?: unknown;
+
+    /**
+     * @todo handle new fields from ajv8
+     **/
+    parentSchema?: unknown;
   }
 }
 
@@ -116,7 +148,7 @@ export class DefaultSchemaValidator implements ISchemaValidator {
    * @param populate - Whether plugin data should be populated, defaults to
    * `true`.
    *
-   * @return A list of errors if either the schema or data fail to validate or
+   * @returns A list of errors if either the schema or data fail to validate or
    * `null` if there are no errors.
    */
   validateData(
@@ -134,7 +166,7 @@ export class DefaultSchemaValidator implements ISchemaValidator {
           `Setting registry schemas' root-level type must be ` +
           `'object', rejecting type: ${plugin.schema.type}`;
 
-        return [{ dataPath: 'type', keyword, schemaPath: '', message }];
+        return [{ instancePath: 'type', keyword, schemaPath: '', message }];
       }
 
       const errors = this._addSchema(plugin.id, plugin.schema);
@@ -150,7 +182,7 @@ export class DefaultSchemaValidator implements ISchemaValidator {
       if (error instanceof SyntaxError) {
         return [
           {
-            dataPath: '',
+            instancePath: '',
             keyword: 'syntax',
             schemaPath: '',
             message: error.message
@@ -163,7 +195,7 @@ export class DefaultSchemaValidator implements ISchemaValidator {
 
       return [
         {
-          dataPath: '',
+          instancePath: '',
           keyword: 'parse',
           schemaPath: '',
           message: `${description} (line ${line} column ${column})`
@@ -196,7 +228,7 @@ export class DefaultSchemaValidator implements ISchemaValidator {
    *
    * @param schema - The schema being added.
    *
-   * @return A list of errors if the schema fails to validate or `null` if there
+   * @returns A list of errors if the schema fails to validate or `null` if there
    * are no errors.
    *
    * #### Notes
@@ -231,8 +263,11 @@ export class DefaultSchemaValidator implements ISchemaValidator {
     return null;
   }
 
-  private _composer = new Ajv({ useDefaults: true });
-  private _validator = new Ajv();
+  private _composer: Ajv = new Ajv({
+    useDefaults: true,
+    ...AJV_DEFAULT_OPTIONS
+  });
+  private _validator: Ajv = new Ajv({ ...AJV_DEFAULT_OPTIONS });
 }
 
 /**
@@ -247,8 +282,15 @@ export class SettingRegistry implements ISettingRegistry {
     this.validator = options.validator || new DefaultSchemaValidator();
     this._timeout = options.timeout || DEFAULT_TRANSFORM_TIMEOUT;
 
-    // Preload with any available data at instantiation-time.
+    // Plugins with transformation may not be loaded if the transformation function is
+    // not yet available. To avoid fetching again the associated data when the transformation
+    // function is available, the plugin data is kept in cache.
     if (options.plugins) {
+      options.plugins
+        .filter(plugin => plugin.schema['jupyter.lab.transform'])
+        .forEach(plugin => this._unloadedPlugins.set(plugin.id, plugin));
+
+      // Preload with any available data at instantiation-time.
       this._ready = this._preload(options.plugins);
     }
   }
@@ -321,10 +363,15 @@ export class SettingRegistry implements ISettingRegistry {
    *
    * @param plugin - The name of the plugin whose settings are being loaded.
    *
+   * @param forceTransform - An optional parameter to force replay the transforms methods.
+   *
    * @returns A promise that resolves with a plugin settings object or rejects
    * if the plugin is not found.
    */
-  async load(plugin: string): Promise<ISettingRegistry.ISettings> {
+  async load(
+    plugin: string,
+    forceTransform: boolean = false
+  ): Promise<ISettingRegistry.ISettings> {
     // Wait for data preload before allowing normal operation.
     await this._ready;
 
@@ -333,9 +380,28 @@ export class SettingRegistry implements ISettingRegistry {
 
     // If the plugin exists, resolve.
     if (plugin in plugins) {
+      // Force replaying the transform function if expected.
+      if (forceTransform) {
+        // Empty the composite and user data before replaying the transforms.
+        plugins[plugin].data = { composite: {}, user: {} };
+        await this._load(await this._transform('fetch', plugins[plugin]));
+        this._pluginChanged.emit(plugin);
+      }
       return new Settings({ plugin: plugins[plugin], registry });
     }
 
+    // If the plugin is not loaded but has already been fetched.
+    if (this._unloadedPlugins.has(plugin) && plugin in this._transformers) {
+      await this._load(
+        await this._transform('fetch', this._unloadedPlugins.get(plugin)!)
+      );
+      if (plugin in plugins) {
+        this._pluginChanged.emit(plugin);
+        this._unloadedPlugins.delete(plugin);
+        return new Settings({ plugin: plugins[plugin], registry });
+      }
+    }
+
     // If the plugin needs to be loaded from the data connector, fetch.
     return this.reload(plugin);
   }
@@ -359,7 +425,7 @@ export class SettingRegistry implements ISettingRegistry {
     if (fetched === undefined) {
       throw [
         {
-          dataPath: '',
+          instancePath: '',
           keyword: 'id',
           message: `Could not fetch settings for ${plugin}.`,
           schemaPath: ''
@@ -514,10 +580,12 @@ export class SettingRegistry implements ISettingRegistry {
       const output = [`Validating ${plugin} failed:`];
 
       (errors as ISchemaValidator.IError[]).forEach((error, index) => {
-        const { dataPath, schemaPath, keyword, message } = error;
+        const { instancePath, schemaPath, keyword, message } = error;
 
-        if (dataPath || schemaPath) {
-          output.push(`${index} - schema @ ${schemaPath}, data @ ${dataPath}`);
+        if (instancePath || schemaPath) {
+          output.push(
+            `${index} - schema @ ${schemaPath}, data @ ${instancePath}`
+          );
         }
         output.push(`{${keyword}} ${message}`);
       });
@@ -569,7 +637,7 @@ export class SettingRegistry implements ISettingRegistry {
     if (fetched === undefined) {
       throw [
         {
-          dataPath: '',
+          instancePath: '',
           keyword: 'id',
           message: `Could not fetch settings for ${plugin}.`,
           schemaPath: ''
@@ -603,7 +671,7 @@ export class SettingRegistry implements ISettingRegistry {
       if (transformed.id !== id) {
         throw [
           {
-            dataPath: '',
+            instancePath: '',
             keyword: 'id',
             message: 'Plugin transformations cannot change plugin IDs.',
             schemaPath: ''
@@ -626,7 +694,7 @@ export class SettingRegistry implements ISettingRegistry {
 
     throw [
       {
-        dataPath: '',
+        instancePath: '',
         keyword: 'timeout',
         message: `Transforming ${plugin.id} timed out.`,
         schemaPath: ''
@@ -657,16 +725,74 @@ export class SettingRegistry implements ISettingRegistry {
       [phase in ISettingRegistry.IPlugin.Phase]: ISettingRegistry.IPlugin.Transform;
     };
   } = Object.create(null);
+  private _unloadedPlugins = new Map<string, ISettingRegistry.IPlugin>();
+}
+
+/**
+ * Base settings specified by a JSON schema.
+ */
+export class BaseSettings<
+  T extends ISettingRegistry.IProperty = ISettingRegistry.IProperty
+> {
+  constructor(options: { schema: T }) {
+    this._schema = options.schema;
+  }
+
+  /**
+   * The plugin's schema.
+   */
+  get schema(): T {
+    return this._schema;
+  }
+
+  /**
+   * Checks if any fields are different from the default value.
+   */
+  isDefault(user: ReadonlyPartialJSONObject): boolean {
+    for (const key in this.schema.properties) {
+      const value = user[key];
+      const defaultValue = this.default(key);
+      if (
+        value === undefined ||
+        defaultValue === undefined ||
+        JSONExt.deepEqual(value, JSONExt.emptyObject) ||
+        JSONExt.deepEqual(value, JSONExt.emptyArray)
+      ) {
+        continue;
+      }
+      if (!JSONExt.deepEqual(value, defaultValue)) {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  /**
+   * Calculate the default value of a setting by iterating through the schema.
+   *
+   * @param key - The name of the setting whose default value is calculated.
+   *
+   * @returns A calculated default JSON value for a specific setting.
+   */
+  default(key?: string): PartialJSONValue | undefined {
+    return Private.reifyDefault(this.schema, key);
+  }
+
+  private _schema: T;
 }
 
 /**
  * A manager for a specific plugin's settings.
  */
-export class Settings implements ISettingRegistry.ISettings {
+export class Settings
+  extends BaseSettings<ISettingRegistry.ISchema>
+  implements ISettingRegistry.ISettings
+{
   /**
    * Instantiate a new plugin settings manager.
    */
   constructor(options: Settings.IOptions) {
+    super({ schema: options.plugin.schema });
     this.id = options.plugin.id;
     this.registry = options.registry;
     this.registry.pluginChanged.connect(this._onPluginChanged, this);
@@ -707,13 +833,6 @@ export class Settings implements ISettingRegistry.ISettings {
     return this.registry.plugins[this.id]!;
   }
 
-  /**
-   * The plugin's schema.
-   */
-  get schema(): ISettingRegistry.ISchema {
-    return this.plugin.schema;
-  }
-
   /**
    * The plugin settings raw text value.
    */
@@ -722,27 +841,8 @@ export class Settings implements ISettingRegistry.ISettings {
   }
 
   /**
-   * Checks if any fields are different from the default value.
+   * Whether the settings have been modified by the user or not.
    */
-  isDefault(user: ReadonlyPartialJSONObject): boolean {
-    for (const key in this.schema.properties) {
-      const value = user[key];
-      const defaultValue = this.default(key);
-      if (
-        value === undefined ||
-        defaultValue === undefined ||
-        JSONExt.deepEqual(value, JSONExt.emptyObject) ||
-        JSONExt.deepEqual(value, JSONExt.emptyArray)
-      ) {
-        continue;
-      }
-      if (!JSONExt.deepEqual(value, defaultValue)) {
-        return false;
-      }
-    }
-    return true;
-  }
-
   get isModified(): boolean {
     return !this.isDefault(this.user);
   }
@@ -768,17 +868,6 @@ export class Settings implements ISettingRegistry.ISettings {
     return Private.annotatedDefaults(this.schema, this.id);
   }
 
-  /**
-   * Calculate the default value of a setting by iterating through the schema.
-   *
-   * @param key - The name of the setting whose default value is calculated.
-   *
-   * @returns A calculated default JSON value for a specific setting.
-   */
-  default(key?: string): PartialJSONValue | undefined {
-    return Private.reifyDefault(this.schema, key);
-  }
-
   /**
    * Dispose of the plugin settings resources.
    */
@@ -802,9 +891,7 @@ export class Settings implements ISettingRegistry.ISettings {
    * This method returns synchronously because it uses a cached copy of the
    * plugin settings that is synchronized with the registry.
    */
-  get(
-    key: string
-  ): {
+  get(key: string): {
     composite: ReadonlyPartialJSONValue | undefined;
     user: ReadonlyPartialJSONValue | undefined;
   } {
@@ -1096,9 +1183,8 @@ export namespace SettingRegistry {
 
     // If a user shortcut collides with another user shortcut warn and filter.
     user = user.filter(shortcut => {
-      const keys = CommandRegistry.normalizeKeys(shortcut).join(
-        RECORD_SEPARATOR
-      );
+      const keys =
+        CommandRegistry.normalizeKeys(shortcut).join(RECORD_SEPARATOR);
       if (!keys) {
         console.warn(
           'Skipping this shortcut because there are no actionable keys on this platform',
@@ -1132,9 +1218,8 @@ export namespace SettingRegistry {
       ...defaults.filter(s => !!s.disabled),
       ...defaults.filter(s => !s.disabled)
     ].filter(shortcut => {
-      const keys = CommandRegistry.normalizeKeys(shortcut).join(
-        RECORD_SEPARATOR
-      );
+      const keys =
+        CommandRegistry.normalizeKeys(shortcut).join(RECORD_SEPARATOR);
 
       if (!keys) {
         return false;
@@ -1378,9 +1463,10 @@ namespace Private {
    */
   export function reifyDefault(
     schema: ISettingRegistry.IProperty,
-    root?: string
+    root?: string,
+    definitions?: PartialJSONObject
   ): PartialJSONValue | undefined {
-    const definitions = schema.definitions as PartialJSONObject;
+    definitions = definitions ?? (schema.definitions as PartialJSONObject);
     // If the property is at the root level, traverse its schema.
     schema = (root ? schema.properties?.[root] : schema) || {};
 
@@ -1391,7 +1477,11 @@ namespace Private {
       // Iterate through and populate each child property.
       const props = schema.properties || {};
       for (const property in props) {
-        result[property] = reifyDefault(props[property]);
+        result[property] = reifyDefault(
+          props[property],
+          undefined,
+          definitions
+        );
       }
 
       return result;
@@ -1412,7 +1502,9 @@ namespace Private {
       // Iterate through the items in the array and fill in defaults
       for (const item in result) {
         // Use the values that are hard-coded in the default array over the defaults for each field.
-        const reified = (reifyDefault(props) as PartialJSONObject) || {};
+        const reified =
+          (reifyDefault(props, undefined, definitions) as PartialJSONObject) ??
+          {};
         for (const prop in reified) {
           if ((result[item] as PartialJSONObject)?.[prop]) {
             reified[prop] = (result[item] as PartialJSONObject)[prop];
diff --git a/packages/settingregistry/src/tokens.ts b/packages/settingregistry/src/tokens.ts
index 34cc1a03f7f1..85bf8ca0e9e2 100644
--- a/packages/settingregistry/src/tokens.ts
+++ b/packages/settingregistry/src/tokens.ts
@@ -3,6 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+import { CellType } from '@jupyterlab/nbformat';
 import { IDataConnector } from '@jupyterlab/statedb';
 import {
   PartialJSONObject,
@@ -14,15 +15,17 @@ import {
 import { IDisposable } from '@lumino/disposable';
 import { ISignal } from '@lumino/signaling';
 import { ISchemaValidator } from './settingregistry';
+import type { RJSFSchema, UiSchema } from '@rjsf/utils';
 
-/* tslint:disable */
 /**
  * The setting registry token.
  */
 export const ISettingRegistry = new Token<ISettingRegistry>(
-  '@jupyterlab/coreutils:ISettingRegistry'
+  '@jupyterlab/coreutils:ISettingRegistry',
+  `A service for the JupyterLab settings system.
+  Use this if you want to store settings for your application.
+  See "schemaDir" for more information.`
 );
-/* tslint:enable */
 
 /**
  * The settings registry interface.
@@ -77,10 +80,15 @@ export interface ISettingRegistry {
    *
    * @param plugin - The name of the plugin whose settings are being loaded.
    *
+   * @param forceTransform - An optional parameter to force replay the transforms methods.
+   *
    * @returns A promise that resolves with a plugin settings object or rejects
    * if the plugin is not found.
    */
-  load(plugin: string): Promise<ISettingRegistry.ISettings>;
+  load(
+    plugin: string,
+    forceTransform?: boolean
+  ): Promise<ISettingRegistry.ISettings>;
 
   /**
    * Reload a plugin's settings into the registry even if they already exist.
@@ -281,6 +289,9 @@ export namespace ISettingRegistry {
     disabled?: boolean;
   }
 
+  /**
+   * An interface describing a context menu item
+   */
   export interface IContextMenuItem extends IMenuItem {
     /**
      * The CSS selector for the context menu item.
@@ -437,6 +448,11 @@ export namespace ISettingRegistry {
      */
     'jupyter.lab.shortcuts'?: IShortcut[];
 
+    /**
+     * The JupyterLab metadata-form schema
+     */
+    'jupyter.lab.metadataforms'?: IMetadataForm[];
+
     /**
      * The root schema is always an object.
      */
@@ -526,9 +542,7 @@ export namespace ISettingRegistry {
      *
      * @returns The setting value.
      */
-    get(
-      key: string
-    ): {
+    get(key: string): {
       composite: ReadonlyPartialJSONValue | undefined;
       user: ReadonlyPartialJSONValue | undefined;
     };
@@ -609,6 +623,101 @@ export namespace ISettingRegistry {
     selector: string;
   }
 
+  /**
+   * An interface describing the metadata form.
+   */
+  export interface IMetadataForm extends PartialJSONObject {
+    /**
+     * The section unique ID.
+     */
+    id: string;
+
+    /**
+     * The metadata schema.
+     */
+    metadataSchema: IMetadataSchema;
+
+    /**
+     * The ui schema as used by react-JSON-schema-form.
+     */
+    uiSchema?: { [metadataKey: string]: UiSchema };
+
+    /**
+     * The jupyter properties.
+     */
+    metadataOptions?: { [metadataKey: string]: IMetadataOptions };
+
+    /**
+     * The section label.
+     */
+    label?: string;
+
+    /**
+     * The section rank in notebooktools panel.
+     */
+    rank?: number;
+
+    /**
+     * Whether to show the modified field from default value.
+     */
+    showModified?: boolean;
+
+    /**
+     * Keep the plugin at origin of the metadata form.
+     */
+    _origin?: string;
+  }
+
+  /**
+   * The metadata schema as defined in JSON schema.
+   */
+  export interface IMetadataSchema extends RJSFSchema {
+    /**
+     * The properties as defined in JSON schema, and interpretable by react-JSON-schema-form.
+     */
+    properties: { [option: string]: any };
+
+    /**
+     * The required fields.
+     */
+    required?: string[];
+
+    /**
+     * Support for allOf feature of JSON schema (useful for if/then/else).
+     */
+    allOf?: Array<PartialJSONObject>;
+  }
+
+  /**
+   * Options to customize the widget, the field and the relevant metadata.
+   */
+  export interface IMetadataOptions extends PartialJSONObject {
+    /**
+     * Name of a custom react widget registered.
+     */
+    customWidget?: string;
+
+    /**
+     * Name of a custom react field registered.
+     */
+    customField?: string;
+
+    /**
+     * Metadata applied to notebook or cell.
+     */
+    metadataLevel?: 'cell' | 'notebook';
+
+    /**
+     * Cells which should have this metadata.
+     */
+    cellTypes?: CellType[];
+
+    /**
+     * Whether to avoid writing default value in metadata.
+     */
+    writeDefault?: boolean;
+  }
+
   /**
    * An interface describing a toolbar item.
    */
diff --git a/packages/settingregistry/test/settingregistry.spec.ts b/packages/settingregistry/test/settingregistry.spec.ts
index 1663c2915233..ae09944d2bac 100644
--- a/packages/settingregistry/test/settingregistry.spec.ts
+++ b/packages/settingregistry/test/settingregistry.spec.ts
@@ -8,7 +8,7 @@ import {
   Settings
 } from '@jupyterlab/settingregistry';
 import { StateDB } from '@jupyterlab/statedb';
-import { signalToPromise } from '@jupyterlab/testutils';
+import { signalToPromise } from '@jupyterlab/testing';
 import { JSONObject } from '@lumino/coreutils';
 
 class TestConnector extends StateDB {
@@ -903,6 +903,44 @@ describe('@jupyterlab/settingregistry', () => {
         expect(settings.default('baz')).toEqual(defaults.baz);
         expect(settings.default('nonexistent-default')).toBeUndefined();
       });
+
+      it('should use definition at top of the schema', async () => {
+        const id = 'omicron';
+        const defaults = {
+          foo: [
+            { bar: 2, baz: 'zip' },
+            { bar: 0, baz: 'zip' }
+          ]
+        };
+
+        connector.schemas[id] = {
+          type: 'object',
+          properties: {
+            foo: {
+              type: 'array',
+              items: { $ref: '#/definitions/fooItem' },
+              default: [{ bar: 2 }, {}]
+            }
+          },
+          definitions: {
+            fooItem: {
+              type: 'object',
+              properties: {
+                bar: {
+                  type: 'number',
+                  default: 0
+                },
+                baz: {
+                  type: 'string',
+                  default: 'zip'
+                }
+              }
+            }
+          }
+        };
+        settings = (await registry.load(id)) as Settings;
+        expect(settings.default()).toStrictEqual(defaults);
+      });
     });
 
     describe('#get()', () => {
diff --git a/packages/settingregistry/tsconfig.json b/packages/settingregistry/tsconfig.json
index 8a31ba357f84..b72ad7b71f52 100644
--- a/packages/settingregistry/tsconfig.json
+++ b/packages/settingregistry/tsconfig.json
@@ -7,6 +7,9 @@
   "files": ["src/plugin-schema.json"],
   "include": ["src/*"],
   "references": [
+    {
+      "path": "../nbformat"
+    },
     {
       "path": "../statedb"
     }
diff --git a/packages/settingregistry/tsconfig.test.json b/packages/settingregistry/tsconfig.test.json
index cc7992954554..8cf8a66c6213 100644
--- a/packages/settingregistry/tsconfig.test.json
+++ b/packages/settingregistry/tsconfig.test.json
@@ -3,16 +3,16 @@
   "include": ["src/*", "test/*"],
   "references": [
     {
-      "path": "../statedb"
+      "path": "../nbformat"
     },
     {
-      "path": "."
+      "path": "../statedb"
     },
     {
-      "path": "../../testutils"
+      "path": "."
     },
     {
-      "path": "../statedb"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/shared-models/babel.config.js b/packages/shared-models/babel.config.js
deleted file mode 100644
index 8b5c76420c60..000000000000
--- a/packages/shared-models/babel.config.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
diff --git a/packages/shared-models/jest.config.js b/packages/shared-models/jest.config.js
deleted file mode 100644
index 178440a1c5f3..000000000000
--- a/packages/shared-models/jest.config.js
+++ /dev/null
@@ -1,2 +0,0 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
-module.exports = func(__dirname);
diff --git a/packages/shared-models/package.json b/packages/shared-models/package.json
deleted file mode 100644
index 190cda02c33a..000000000000
--- a/packages/shared-models/package.json
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  "name": "@jupyterlab/shared-models",
-  "version": "3.6.6",
-  "description": "JupyterLab - Shared Models",
-  "homepage": "https://github.com/jupyterlab/jupyterlab",
-  "bugs": {
-    "url": "https://github.com/jupyterlab/jupyterlab/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/jupyterlab/jupyterlab.git"
-  },
-  "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
-  "main": "lib/index.js",
-  "types": "lib/index.d.ts",
-  "directories": {
-    "lib": "lib/"
-  },
-  "files": [
-    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}"
-  ],
-  "scripts": {
-    "build": "tsc -b",
-    "clean": "rimraf lib tsconfig.tsbuildinfo",
-    "docs": "typedoc src --tsconfig typedoc-tsconfig.json",
-    "watch": "tsc -b --watch"
-  },
-  "dependencies": {
-    "@jupyter/ydoc": "~0.2.4",
-    "@jupyterlab/nbformat": "^3.6.6"
-  },
-  "devDependencies": {
-    "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
-  },
-  "publishConfig": {
-    "access": "public"
-  }
-}
diff --git a/packages/shared-models/typedoc.json b/packages/shared-models/typedoc.json
deleted file mode 100644
index 3853cec6df80..000000000000
--- a/packages/shared-models/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/shared-models",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/shortcuts-extension/.vscode/launch.json b/packages/shortcuts-extension/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/shortcuts-extension/.vscode/launch.json
+++ b/packages/shortcuts-extension/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/shortcuts-extension/babel.config.js b/packages/shortcuts-extension/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/shortcuts-extension/babel.config.js
+++ b/packages/shortcuts-extension/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/shortcuts-extension/jest.config.js b/packages/shortcuts-extension/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/shortcuts-extension/jest.config.js
+++ b/packages/shortcuts-extension/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/shortcuts-extension/package.json b/packages/shortcuts-extension/package.json
index 7f683bc25cd3..d3ccb2e25efd 100644
--- a/packages/shortcuts-extension/package.json
+++ b/packages/shortcuts-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/shortcuts-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Shortcuts Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -26,7 +26,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
     "style/index.js",
-    "schema/*.json"
+    "schema/*.json",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -35,33 +36,30 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/keyboard": "^1.8.1",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "typestyle": "^2.0.4"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/keyboard": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/shortcuts-extension/src/components/ShortcutInput.tsx b/packages/shortcuts-extension/src/components/ShortcutInput.tsx
index 6a3871ef09f1..62cd1b3f2b90 100644
--- a/packages/shortcuts-extension/src/components/ShortcutInput.tsx
+++ b/packages/shortcuts-extension/src/components/ShortcutInput.tsx
@@ -1,23 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import * as React from 'react';
 
-import { classes } from 'typestyle';
+import { ITranslator } from '@jupyterlab/translation';
 
 import { EN_US } from '@lumino/keyboard';
-
-import {
-  InputBoxHiddenStyle,
-  InputBoxNewStyle,
-  InputBoxStyle,
-  InputSelectedTextStyle,
-  InputStyle,
-  InputTextStyle,
-  InputUnavailableStyle,
-  InputWaitingStyle,
-  SubmitConflictStyle,
-  SubmitNonFunctionalStyle,
-  SubmitStyle
-} from '../componentStyle/ShortcutInputStyle';
-import { ITranslator } from '@jupyterlab/translation';
+import { checkIcon, errorIcon } from '@jupyterlab/ui-components';
 
 export interface IShortcutInputProps {
   handleUpdate: Function;
@@ -305,9 +296,10 @@ export class ShortcutInput extends React.Component<
           binding !== ''
         ) {
           isAvailable = false;
-          takenByObject = this.props.keyBindingsUsed[
-            binding + '_' + this.props.shortcut.selector
-          ];
+          takenByObject =
+            this.props.keyBindingsUsed[
+              binding + '_' + this.props.shortcut.selector
+            ];
           break;
         }
       }
@@ -321,16 +313,18 @@ export class ShortcutInput extends React.Component<
         currentChain !== ''
       ) {
         isAvailable = false;
-        takenByObject = this.props.keyBindingsUsed[
-          currentChain + '_' + this.props.shortcut.selector
-        ];
+        takenByObject =
+          this.props.keyBindingsUsed[
+            currentChain + '_' + this.props.shortcut.selector
+          ];
       }
 
       /** If unavailable set takenByObject */
     } else {
-      takenByObject = this.props.keyBindingsUsed[
-        keys.join(' ') + currentChain + '_' + this.props.shortcut.selector
-      ];
+      takenByObject =
+        this.props.keyBindingsUsed[
+          keys.join(' ') + currentChain + '_' + this.props.shortcut.selector
+        ];
     }
 
     /** allow to set shortcut to what it initially was if replacing */
@@ -416,18 +410,18 @@ export class ShortcutInput extends React.Component<
 
   render() {
     const trans = this.props.translator.load('jupyterlab');
-    let inputClassName = InputStyle;
+    let inputClassName = 'jp-Shortcuts-Input';
     if (!this.state.isAvailable) {
-      inputClassName = classes(inputClassName, InputUnavailableStyle);
+      inputClassName += ' jp-mod-unavailable-Input';
     }
     return (
       <div
         className={
           this.props.displayInput
             ? this.props.newOrReplace === 'new'
-              ? classes(InputBoxStyle, InputBoxNewStyle)
-              : InputBoxStyle
-            : InputBoxHiddenStyle
+              ? 'jp-Shortcuts-InputBox jp-Shortcuts-InputBoxNew'
+              : 'jp-Shortcuts-InputBox'
+            : 'jp-mod-hidden'
         }
         onBlur={event => this.handleBlur(event)}
       >
@@ -441,10 +435,10 @@ export class ShortcutInput extends React.Component<
           <p
             className={
               this.state.selected && this.props.newOrReplace === 'replace'
-                ? classes(InputTextStyle, InputSelectedTextStyle)
+                ? 'jp-Shortcuts-InputText jp-mod-selected-InputText'
                 : this.state.value === ''
-                ? classes(InputTextStyle, InputWaitingStyle)
-                : InputTextStyle
+                ? 'jp-Shortcuts-InputText jp-mod-waiting-InputText'
+                : 'jp-Shortcuts-InputText'
             }
           >
             {this.state.value === ''
@@ -455,10 +449,10 @@ export class ShortcutInput extends React.Component<
         <button
           className={
             !this.state.isFunctional
-              ? classes(SubmitStyle, SubmitNonFunctionalStyle)
+              ? 'jp-Shortcuts-Submit jp-mod-defunc-Submit'
               : !this.state.isAvailable
-              ? classes(SubmitStyle, SubmitConflictStyle)
-              : classes(SubmitStyle)
+              ? 'jp-Shortcuts-Submit jp-mod-conflict-Submit'
+              : 'jp-Shortcuts-Submit'
           }
           id={'no-blur'}
           disabled={!this.state.isAvailable || !this.state.isFunctional}
@@ -485,7 +479,9 @@ export class ShortcutInput extends React.Component<
               }
             }
           }}
-        />
+        >
+          {this.state.isAvailable ? <checkIcon.react /> : <errorIcon.react />}
+        </button>
         {!this.state.isAvailable && (
           <button
             hidden
diff --git a/packages/shortcuts-extension/src/components/ShortcutItem.tsx b/packages/shortcuts-extension/src/components/ShortcutItem.tsx
index 1f010781b573..b657084fdf30 100644
--- a/packages/shortcuts-extension/src/components/ShortcutItem.tsx
+++ b/packages/shortcuts-extension/src/components/ShortcutItem.tsx
@@ -1,33 +1,17 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { TranslationBundle } from '@jupyterlab/translation';
 import { Platform } from '@lumino/domutils';
 import * as React from 'react';
-import { classes } from 'typestyle';
-import {
-  CellStyle,
-  CommaStyle,
-  ConflictContainerStyle,
-  EmptyShortcutCellStyle,
-  ErrorButtonStyle,
-  ErrorMessageStyle,
-  OrStyle,
-  OrTwoStyle,
-  PlusStyle,
-  ResetStyle,
-  RowStyle,
-  ShortcutCellStyle,
-  ShortcutContainerStyle,
-  ShortcutKeysContainerStyle,
-  ShortcutKeysStyle,
-  SingleShortcutCellStyle,
-  SourceCellStyle
-} from '../componentStyle/ShortcutItemStyle';
 import {
   ErrorObject,
   ShortcutInput,
   ShortcutObject,
   TakenByObject
 } from './ShortcutInput';
-import { UISize } from './ShortcutUI';
 import { IShortcutUIexternal } from './TopNav';
 
 /** Props for ShortcutItem component */
@@ -40,7 +24,6 @@ export interface IShortcutItemProps {
   keyBindingsUsed: { [index: string]: TakenByObject };
   sortConflict: Function;
   clearConflicts: Function;
-  errorSize: UISize;
   contextMenu: Function;
   external: IShortcutUIexternal;
 }
@@ -59,9 +42,7 @@ enum ShortCutLocation {
 }
 
 /** Describe commands that are used by shortcuts */
-function getCommands(
-  trans: TranslationBundle
-): {
+function getCommands(trans: TranslationBundle): {
   [key: string]: { commandId: string; label: string; caption: string };
 } {
   return {
@@ -229,21 +210,17 @@ export class ShortcutItem extends React.Component<
 
   getErrorRow(): JSX.Element {
     const trans = this.props.external.translator.load('jupyterlab');
+
     return (
-      <div className={classes(RowStyle)}>
-        <div
-          className={ConflictContainerStyle(
-            this.props.showSelectors,
-            this.props.errorSize
-          )}
-        >
-          <div className={ErrorMessageStyle}>
+      <div className="jp-Shortcuts-Row">
+        <div className="jp-Shortcuts-ConflictContainer">
+          <div className="jp-Shortcuts-ErrorMessage">
             {trans.__(
               'Shortcut already in use by %1. Overwrite it?',
               (this.props.shortcut as ErrorObject).takenBy.takenByLabel
             )}
           </div>
-          <div className={ErrorButtonStyle}>
+          <div className="jp-Shortcuts-ErrorButton">
             <button>{trans.__('Cancel')}</button>
             <button
               id="no-blur"
@@ -260,12 +237,14 @@ export class ShortcutItem extends React.Component<
   }
 
   getCategoryCell(): JSX.Element {
-    return <div className={CellStyle}>{this.props.shortcut.category}</div>;
+    return (
+      <div className="jp-Shortcuts-Cell">{this.props.shortcut.category}</div>
+    );
   }
 
   getLabelCell(): JSX.Element {
     return (
-      <div className={CellStyle}>
+      <div className="jp-Shortcuts-Cell">
         <div className="jp-label">{this.props.shortcut.label}</div>
       </div>
     );
@@ -275,7 +254,7 @@ export class ShortcutItem extends React.Component<
     const trans = this.props.external.translator.load('jupyterlab');
     return (
       <a
-        className={ResetStyle}
+        className="jp-Shortcuts-Reset"
         onClick={() => this.props.resetShortcut(this.props.shortcut)}
       >
         {trans.__('Reset')}
@@ -285,29 +264,34 @@ export class ShortcutItem extends React.Component<
 
   getSourceCell(): JSX.Element {
     return (
-      <div className={CellStyle}>
-        <div className={SourceCellStyle}>{this.props.shortcut.source}</div>
+      <div className="jp-Shortcuts-Cell">
+        <div className="jp-Shortcuts-SourceCell">
+          {this.props.shortcut.source}
+        </div>
         {this.props.shortcut.source === 'Custom' && this.getResetShortCutLink()}
       </div>
     );
   }
 
-  getOptionalSelectorCell(): JSX.Element {
+  getOptionalSelectorCell(): JSX.Element | null {
     return this.props.showSelectors ? (
-      <div className={CellStyle}>
+      <div className="jp-Shortcuts-Cell">
         <div className="jp-selector">{this.props.shortcut.selector}</div>
       </div>
-    ) : (
-      <div />
-    );
+    ) : null;
   }
 
   getClassNameForShortCuts(nonEmptyKeys: string[]): string {
-    return nonEmptyKeys.length === 0
-      ? classes(ShortcutCellStyle, EmptyShortcutCellStyle)
-      : nonEmptyKeys.length === 1
-      ? classes(ShortcutCellStyle, SingleShortcutCellStyle)
-      : ShortcutCellStyle;
+    const classes = ['jp-Shortcuts-ShortcutCell'];
+    switch (nonEmptyKeys.length) {
+      case 1:
+        classes.push('jp-Shortcuts-SingleCell');
+        break;
+      case 0:
+        classes.push('jp-Shortcuts-EmptyCell');
+        break;
+    }
+    return classes.join(' ');
   }
 
   getToggleInputReplaceMethod(location: ShortCutLocation): () => void {
@@ -334,8 +318,8 @@ export class ShortcutItem extends React.Component<
       <div
         className={
           nonEmptyKeys.length == 2 || this.state.displayNewInput
-            ? OrTwoStyle
-            : OrStyle
+            ? 'jp-Shortcuts-OrTwo'
+            : 'jp-Shortcuts-Or'
         }
         id={
           nonEmptyKeys.length == 2
@@ -373,12 +357,12 @@ export class ShortcutItem extends React.Component<
   getShortCutForDisplayOnly(key: string): JSX.Element[] {
     return this.props.shortcut.keys[key].map(
       (keyBinding: string, index: number) => (
-        <div className={ShortcutKeysContainerStyle} key={index}>
-          <div className={ShortcutKeysStyle} id={'shortcut-keys'}>
+        <div className="jp-Shortcuts-ShortcutKeysContainer" key={index}>
+          <div className="jp-Shortcuts-ShortcutKeys">
             {this.toSymbols(keyBinding)}
           </div>
           {index + 1 < this.props.shortcut.keys[key].length ? (
-            <div className={CommaStyle}>,</div>
+            <div className="jp-Shortcuts-Comma">,</div>
           ) : null}
         </div>
       )
@@ -406,7 +390,7 @@ export class ShortcutItem extends React.Component<
     const location = this.getLocationFromIndex(index);
     return (
       <div
-        className={ShortcutContainerStyle}
+        className="jp-Shortcuts-ShortcutContainer"
         key={this.props.shortcut.id + '_' + index}
         onClick={this.getToggleInputReplaceMethod(location)}
       >
@@ -423,7 +407,7 @@ export class ShortcutItem extends React.Component<
     const trans = this.props.external.translator.load('jupyterlab');
     return (
       <a
-        className={!this.state.displayNewInput ? PlusStyle : ''}
+        className={!this.state.displayNewInput ? 'jp-Shortcuts-Plus' : ''}
         onClick={() => {
           this.toggleInputNew(), this.props.clearConflicts();
         }}
@@ -458,7 +442,7 @@ export class ShortcutItem extends React.Component<
 
   getShortCutsCell(nonEmptyKeys: string[]): JSX.Element {
     return (
-      <div className={CellStyle}>
+      <div className="jp-Shortcuts-Cell">
         <div className={this.getClassNameForShortCuts(nonEmptyKeys)}>
           {nonEmptyKeys.map((key, index) =>
             this.getDivForKey(index, key, nonEmptyKeys)
@@ -485,7 +469,7 @@ export class ShortcutItem extends React.Component<
     } else {
       return (
         <div
-          className={RowStyle}
+          className="jp-Shortcuts-Row"
           onContextMenu={e => {
             e.persist();
             this.handleRightClick(e);
diff --git a/packages/shortcuts-extension/src/components/ShortcutList.tsx b/packages/shortcuts-extension/src/components/ShortcutList.tsx
index 3f2c8bcf2d95..cd6c60dec50c 100644
--- a/packages/shortcuts-extension/src/components/ShortcutList.tsx
+++ b/packages/shortcuts-extension/src/components/ShortcutList.tsx
@@ -1,11 +1,11 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import * as React from 'react';
-import {
-  ShortcutListContainerStyle,
-  ShortcutListStyle
-} from '../componentStyle/ShortcutListStyle';
 import { ShortcutObject, TakenByObject } from './ShortcutInput';
 import { ShortcutItem } from './ShortcutItem';
-import { UISize } from './ShortcutUI';
 import { IShortcutUIexternal } from './TopNav';
 
 const TOPNAV_HEIGHT: number = 115;
@@ -21,7 +21,6 @@ export interface IShortcutListProps {
   sortConflict: Function;
   clearConflicts: Function;
   height: number;
-  errorSize: UISize;
   contextMenu: Function;
   external: IShortcutUIexternal;
 }
@@ -31,10 +30,13 @@ export class ShortcutList extends React.Component<IShortcutListProps> {
   render(): JSX.Element {
     return (
       <div
-        className={ShortcutListContainerStyle(TOPNAV_HEIGHT, this.props.height)}
+        className="jp-Shortcuts-ShortcutListContainer"
+        style={{
+          height: `${this.props.height - TOPNAV_HEIGHT}px`
+        }}
         id="shortcutListContainer"
       >
-        <div className={ShortcutListStyle}>
+        <div className="jp-Shortcuts-ShortcutList">
           {this.props.shortcuts.map((shortcut: ShortcutObject) => {
             return (
               <ShortcutItem
@@ -47,7 +49,6 @@ export class ShortcutList extends React.Component<IShortcutListProps> {
                 keyBindingsUsed={this.props.keyBindingsUsed}
                 sortConflict={this.props.sortConflict}
                 clearConflicts={this.props.clearConflicts}
-                errorSize={this.props.errorSize}
                 contextMenu={this.props.contextMenu}
                 external={this.props.external}
               />
diff --git a/packages/shortcuts-extension/src/components/ShortcutTitleItem.tsx b/packages/shortcuts-extension/src/components/ShortcutTitleItem.tsx
index fa39db24ee9a..cdba4694f7c2 100644
--- a/packages/shortcuts-extension/src/components/ShortcutTitleItem.tsx
+++ b/packages/shortcuts-extension/src/components/ShortcutTitleItem.tsx
@@ -1,12 +1,10 @@
-import * as React from 'react';
-
-import { classes } from 'typestyle';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-import {
-  CurrentHeaderStyle,
-  HeaderStyle,
-  SortButtonStyle
-} from '../componentStyle/ShortcutTitleItemStyle';
+import { caretDownEmptyThinIcon } from '@jupyterlab/ui-components';
+import * as React from 'react';
 
 export interface IShortcutTitleItemProps {
   title: string;
@@ -14,23 +12,21 @@ export interface IShortcutTitleItemProps {
   active: string;
 }
 
-export class ShortcutTitleItem extends React.Component<
-  IShortcutTitleItemProps
-> {
+export class ShortcutTitleItem extends React.Component<IShortcutTitleItemProps> {
   render(): JSX.Element {
     return (
       <div
         className={
           this.props.title.toLowerCase() === this.props.active
-            ? classes(HeaderStyle, CurrentHeaderStyle)
-            : HeaderStyle
+            ? 'jp-Shortcuts-Header jp-Shortcuts-CurrentHeader'
+            : 'jp-Shortcuts-Header'
         }
         onClick={() => this.props.updateSort(this.props.title.toLowerCase())}
       >
         {this.props.title}
-        <div className={`${SortButtonStyle} jp-ShortcutTitleItem-sortButton`}>
-          ⌃
-        </div>
+        <caretDownEmptyThinIcon.react
+          className={'jp-Shortcuts-SortButton jp-ShortcutTitleItem-sortButton'}
+        />
       </div>
     );
   }
diff --git a/packages/shortcuts-extension/src/components/ShortcutUI.tsx b/packages/shortcuts-extension/src/components/ShortcutUI.tsx
index d702c9ea8828..eed2bde20046 100644
--- a/packages/shortcuts-extension/src/components/ShortcutUI.tsx
+++ b/packages/shortcuts-extension/src/components/ShortcutUI.tsx
@@ -1,14 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 
 import { ArrayExt, StringExt } from '@lumino/algorithm';
 
 import { ReadonlyJSONArray } from '@lumino/coreutils';
 
-import {
-  ShortcutUIStyle,
-  TopWhitespaceStyle
-} from '../componentStyle/ShortcutUIStyle';
-
 import { ShortcutList } from './ShortcutList';
 
 import { IShortcutUIexternal, TopNav } from './TopNav';
@@ -23,12 +23,6 @@ const enum MatchType {
   Default
 }
 
-export const enum UISize {
-  Regular,
-  Small,
-  Tiny
-}
-
 /** Props for ShortcutUI component */
 export interface IShortcutUIProps {
   external: IShortcutUIexternal;
@@ -151,7 +145,7 @@ function matchItems(items: any, query: string): any {
   query = normalizeQuery(query);
 
   // Create the array to hold the scores.
-  let scores: Object[] = [];
+  let scores: any[] = [];
   // Iterate over the items and match against the query.
   let itemList = Object.keys(items);
   for (let i = 0, n = itemList.length; i < n; ++i) {
@@ -257,7 +251,7 @@ export class ShortcutUI extends React.Component<
   IShortcutUIProps,
   IShortcutUIState
 > {
-  constructor(props: any) {
+  constructor(props: IShortcutUIProps) {
     super(props);
     this.state = {
       shortcutList: {},
@@ -277,7 +271,8 @@ export class ShortcutUI extends React.Component<
   }
   /** Fetch shortcut list from SettingRegistry  */
   private async _refreshShortcutList(): Promise<void> {
-    const shortcuts: ISettingRegistry.ISettings = await this.props.external.getAllShortCutSettings();
+    const shortcuts: ISettingRegistry.ISettings =
+      await this.props.external.getAllShortCutSettings();
     const shortcutObjects = getShortcutObjects(this.props.external, shortcuts);
     this.setState(
       {
@@ -314,7 +309,7 @@ export class ShortcutUI extends React.Component<
   };
 
   /** Filter shortcut list using current search query */
-  private searchFilterShortcuts(shortcutObjects: Object): ShortcutObject[] {
+  private searchFilterShortcuts(shortcutObjects: any): ShortcutObject[] {
     const filteredShortcuts = matchItems(
       shortcutObjects,
       this.state.searchQuery
@@ -325,7 +320,7 @@ export class ShortcutUI extends React.Component<
   }
 
   /** Reset all shortcuts to their defaults */
-  resetShortcuts = async () => {
+  resetShortcuts = async (): Promise<void> => {
     const settings = await this.props.external.getAllShortCutSettings();
     for (const key of Object.keys(settings.user)) {
       await this.props.external.removeShortCut(key);
@@ -334,8 +329,12 @@ export class ShortcutUI extends React.Component<
   };
 
   /** Set new shortcut for command, refresh state */
-  handleUpdate = async (shortcutObject: ShortcutObject, keys: string[]) => {
-    const settings: ISettingRegistry.ISettings = await this.props.external.getAllShortCutSettings();
+  handleUpdate = async (
+    shortcutObject: ShortcutObject,
+    keys: string[]
+  ): Promise<void> => {
+    const settings: ISettingRegistry.ISettings =
+      await this.props.external.getAllShortCutSettings();
     const userShortcuts = settings.user.shortcuts as ReadonlyJSONArray;
     const newUserShortcuts = [];
     let found = false;
@@ -369,14 +368,15 @@ export class ShortcutUI extends React.Component<
   deleteShortcut = async (
     shortcutObject: ShortcutObject,
     shortcutId: string
-  ) => {
+  ): Promise<void> => {
     await this.handleUpdate(shortcutObject, ['']);
     await this._refreshShortcutList();
   };
 
   /** Reset a specific shortcut to its default settings */
-  resetShortcut = async (shortcutObject: ShortcutObject) => {
-    const settings: ISettingRegistry.ISettings = await this.props.external.getAllShortCutSettings();
+  resetShortcut = async (shortcutObject: ShortcutObject): Promise<void> => {
+    const settings: ISettingRegistry.ISettings =
+      await this.props.external.getAllShortCutSettings();
     const userShortcuts = settings.user.shortcuts as ReadonlyJSONArray;
     const newUserShortcuts = [];
     for (let shortcut of userShortcuts as any) {
@@ -461,7 +461,7 @@ export class ShortcutUI extends React.Component<
     this.setState({ filteredShortcutList: shortcutList });
   };
 
-  contextMenu = (event: any, commandIDs: string[]) => {
+  contextMenu = (event: React.MouseEvent, commandIDs: string[]): void => {
     event.persist();
     this.setState(
       {
@@ -477,13 +477,12 @@ export class ShortcutUI extends React.Component<
     );
   };
 
-  render() {
+  render(): JSX.Element | null {
     if (!this.state.shortcutsFetched) {
       return null;
     }
     return (
-      <div className={ShortcutUIStyle} id="jp-shortcutui">
-        <div className={TopWhitespaceStyle} />
+      <div className="jp-Shortcuts-ShortcutUI" id="jp-shortcutui">
         <TopNav
           updateSearchQuery={this.updateSearchQuery}
           resetShortcuts={this.resetShortcuts}
@@ -504,7 +503,6 @@ export class ShortcutUI extends React.Component<
           sortConflict={this.sortConflict}
           clearConflicts={this.clearConflicts}
           height={this.props.height}
-          errorSize={this.props.width < 775 ? UISize.Small : UISize.Regular}
           contextMenu={this.contextMenu}
           external={this.props.external}
         />
diff --git a/packages/shortcuts-extension/src/components/TopNav.tsx b/packages/shortcuts-extension/src/components/TopNav.tsx
index f857b98f81ba..44c80f468d80 100644
--- a/packages/shortcuts-extension/src/components/TopNav.tsx
+++ b/packages/shortcuts-extension/src/components/TopNav.tsx
@@ -1,34 +1,19 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator } from '@jupyterlab/translation';
+import { InputGroup } from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import { IDisposable } from '@lumino/disposable';
 import { Menu } from '@lumino/widgets';
 import * as React from 'react';
-import { classes } from 'typestyle';
-import { CellStyle } from '../componentStyle/ShortcutItemStyle';
-import {
-  AdvancedOptionsContainerStyle,
-  AdvancedOptionsLinkStyle,
-  AdvancedOptionsSmallStyle,
-  AdvancedOptionsStyle,
-  altIconStyle,
-  commandIconStyle,
-  controlIconStyle,
-  HeaderRowContainerStyle,
-  HeaderRowStyle,
-  SearchContainerStyle,
-  SearchStyle,
-  SymbolsRowStyle,
-  SymbolsSmallStyle,
-  SymbolsStyle,
-  TopNavStyle,
-  TopStyle
-} from '../componentStyle/TopNavStyle';
+
 import { ShortcutTitleItem } from './ShortcutTitleItem';
-import { UISize } from './ShortcutUI';
 
 export interface IAdvancedOptionsProps {
-  size: UISize;
   toggleSelectors: Function;
   showSelectors: boolean;
   resetShortcuts: Function;
@@ -36,9 +21,7 @@ export interface IAdvancedOptionsProps {
   translator: ITranslator;
 }
 
-export interface ISymbolsProps {
-  size: UISize;
-}
+export interface ISymbolsProps {}
 
 /** All external actions, setting commands, getting command list ... */
 export interface IShortcutUIexternal {
@@ -59,121 +42,57 @@ export namespace CommandIDs {
   export const resetAll = 'shortcutui:resetAll';
 }
 
-class Symbols extends React.Component<ISymbolsProps, {}> {
-  getRegularSymbols() {
-    return (
-      <div className={SymbolsStyle}>
-        <div className={SymbolsRowStyle}>
-          <div>Cmd ⌘</div>
-          <div>Alt ⌥</div>
-          <div>Ctrl ⌃</div>
-          <div>Shift ⇧</div>
-        </div>
-      </div>
-    );
-  }
-
-  getSmallSymbols() {
-    return (
-      <div className={classes(SymbolsStyle, SymbolsSmallStyle)}>
-        <div className={SymbolsRowStyle}>
-          <span>Cmd </span>
-          <span className={commandIconStyle}>⌘</span>
-          <span>Alt </span>
-          <span className={altIconStyle}>⌥</span>
-        </div>
-        <div className={SymbolsRowStyle}>
-          <span>Ctrl </span>
-          <span className={controlIconStyle}>⌃</span>
-          <span>Shift </span>
-          <span>⇧</span>
-        </div>
-      </div>
-    );
-  }
-
-  getTinySymbols() {
-    return (
-      <div className={classes(SymbolsStyle, SymbolsSmallStyle)}>
-        <div className={SymbolsRowStyle}>
-          <span>Cmd</span>
-          <span>⌘</span>
-        </div>
-        <div className={SymbolsRowStyle}>
-          <span>Alt</span>
-          <span>⌥</span>
-        </div>
-        <div className={SymbolsRowStyle}>
-          <span>Ctrl</span>
-          <span>⌃</span>
-        </div>
-        <div className={SymbolsRowStyle}>
-          <span>Shift</span>
-          <span>⇧</span>
-        </div>
-      </div>
-    );
-  }
-
-  render() {
-    switch (this.props.size) {
-      case UISize.Regular:
-        return this.getRegularSymbols();
-      case UISize.Small:
-        return this.getSmallSymbols();
-      case UISize.Tiny:
-        return this.getTinySymbols();
-    }
-  }
+function Symbols(props: ISymbolsProps): JSX.Element {
+  return (
+    <div className="jp-Shortcuts-Symbols">
+      <table>
+        <tbody>
+          <tr>
+            <td>
+              <kbd>Cmd</kbd>
+            </td>
+            <td>⌘</td>
+            <td>
+              <kbd>Ctrl</kbd>
+            </td>
+            <td>⌃</td>
+          </tr>
+          <tr>
+            <td>
+              <kbd>Alt</kbd>
+            </td>
+            <td>⌥</td>
+            <td>
+              <kbd>Shift</kbd>
+            </td>
+            <td>⇧</td>
+          </tr>
+        </tbody>
+      </table>
+    </div>
+  );
 }
 
-class AdvancedOptions extends React.Component<IAdvancedOptionsProps> {
-  render() {
-    const trans = this.props.translator.load('jupyterlab');
-    if (this.props.size === UISize.Regular) {
-      return (
-        <div className={AdvancedOptionsContainerStyle}>
-          <div className={AdvancedOptionsStyle}>
-            <a
-              className={AdvancedOptionsLinkStyle(this.props.size)}
-              onClick={() => this.props.toggleSelectors()}
-            >
-              {this.props.showSelectors
-                ? trans.__('Hide Selectors')
-                : trans.__('Show Selectors')}
-            </a>
-            <a
-              className={classes(AdvancedOptionsLinkStyle(this.props.size))}
-              onClick={() => this.props.resetShortcuts()}
-            >
-              {trans.__('Reset All')}
-            </a>
-          </div>
-        </div>
-      );
-    } else {
-      return (
-        <div
-          className={classes(AdvancedOptionsStyle, AdvancedOptionsSmallStyle)}
-        >
-          <a
-            className={AdvancedOptionsLinkStyle(this.props.size)}
-            onClick={() => this.props.toggleSelectors()}
-          >
-            {this.props.showSelectors
-              ? trans.__('Hide Selectors')
-              : trans.__('Show Selectors')}
-          </a>
-          <a
-            className={classes(AdvancedOptionsLinkStyle(this.props.size))}
-            onClick={() => this.props.resetShortcuts()}
-          >
-            {trans.__('Reset All')}
-          </a>
-        </div>
-      );
-    }
-  }
+function AdvancedOptions(props: IAdvancedOptionsProps): JSX.Element {
+  const trans = props.translator.load('jupyterlab');
+  return (
+    <div className="jp-Shortcuts-AdvancedOptions">
+      <a
+        className="jp-Shortcuts-AdvancedOptionsLink"
+        onClick={() => props.toggleSelectors()}
+      >
+        {props.showSelectors
+          ? trans.__('Hide Selectors')
+          : trans.__('Show Selectors')}
+      </a>
+      <a
+        className="jp-Shortcuts-AdvancedOptionsLink"
+        onClick={() => props.resetShortcuts()}
+      >
+        {trans.__('Reset All')}
+      </a>
+    </div>
+  );
 }
 
 /** State for TopNav component */
@@ -223,19 +142,9 @@ export class TopNav extends React.Component<ITopNavProps> {
     }
   }
 
-  getSize = (width: number): UISize => {
-    if (width < 730) {
-      return UISize.Tiny;
-    } else if (width < 1260) {
-      return UISize.Small;
-    } else {
-      return UISize.Regular;
-    }
-  };
-
   getShortCutTitleItem(title: string) {
     return (
-      <div className={CellStyle}>
+      <div className="jp-Shortcuts-Cell">
         <ShortcutTitleItem
           title={title}
           updateSort={this.props.updateSort}
@@ -248,18 +157,17 @@ export class TopNav extends React.Component<ITopNavProps> {
   render() {
     const trans = this.props.external.translator.load('jupyterlab');
     return (
-      <div className={TopStyle}>
-        <div className={TopNavStyle}>
-          <Symbols size={this.getSize(this.props.width)} />
-          <div className={SearchContainerStyle}>
-            <input
-              onChange={event => this.props.updateSearchQuery(event)}
-              className={SearchStyle}
-              placeholder={trans.__('Search')}
-            />
-          </div>
+      <div className="jp-Shortcuts-Top">
+        <div className="jp-Shortcuts-TopNav">
+          <Symbols />
+          <InputGroup
+            className="jp-Shortcuts-Search"
+            type="text"
+            onChange={event => this.props.updateSearchQuery(event)}
+            placeholder={trans.__('Search…')}
+            rightIcon="ui-components:search"
+          />
           <AdvancedOptions
-            size={this.getSize(this.props.width)}
             toggleSelectors={this.props.toggleSelectors}
             showSelectors={this.props.showSelectors}
             resetShortcuts={this.props.resetShortcuts}
@@ -267,11 +175,11 @@ export class TopNav extends React.Component<ITopNavProps> {
             translator={this.props.external.translator}
           />
         </div>
-        <div className={HeaderRowContainerStyle}>
-          <div className={HeaderRowStyle}>
+        <div className="jp-Shortcuts-HeaderRowContainer">
+          <div className="jp-Shortcuts-HeaderRow">
             {this.getShortCutTitleItem(trans.__('Category'))}
             {this.getShortCutTitleItem(trans.__('Command'))}
-            <div className={CellStyle}>
+            <div className="jp-Shortcuts-Cell">
               <div className="title-div">{trans.__('Shortcut')}</div>
             </div>
             {this.getShortCutTitleItem(trans.__('Source'))}
diff --git a/packages/shortcuts-extension/src/components/index.ts b/packages/shortcuts-extension/src/components/index.ts
index e03b90e9378b..394773674095 100644
--- a/packages/shortcuts-extension/src/components/index.ts
+++ b/packages/shortcuts-extension/src/components/index.ts
@@ -1,2 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 export * from './ShortcutUI';
 export { IShortcutUIexternal } from './TopNav';
diff --git a/packages/shortcuts-extension/src/index.ts b/packages/shortcuts-extension/src/index.ts
index 14b9f7829386..12a5acda95c0 100644
--- a/packages/shortcuts-extension/src/index.ts
+++ b/packages/shortcuts-extension/src/index.ts
@@ -11,7 +11,10 @@ import {
 } from '@jupyterlab/application';
 import { ISettingRegistry, SettingRegistry } from '@jupyterlab/settingregistry';
 import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { IFormComponentRegistry } from '@jupyterlab/ui-components';
+import {
+  IFormRenderer,
+  IFormRendererRegistry
+} from '@jupyterlab/ui-components';
 import { CommandRegistry } from '@lumino/commands';
 import {
   JSONExt,
@@ -34,7 +37,7 @@ function getExternalForJupyterLab(
   return {
     translator,
     getAllShortCutSettings: () =>
-      settingRegistry.reload(shortcutPluginLocation),
+      settingRegistry.load(shortcutPluginLocation, true),
     removeShortCut: (key: string) =>
       settingRegistry.remove(shortcutPluginLocation, key),
     createMenu: () => new Menu({ commands }),
@@ -76,13 +79,14 @@ function getExternalForJupyterLab(
  */
 const shortcuts: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/shortcuts-extension:shortcuts',
+  description: 'Adds the keyboard shortcuts editor.',
   requires: [ISettingRegistry],
-  optional: [ITranslator, IFormComponentRegistry],
+  optional: [ITranslator, IFormRendererRegistry],
   activate: async (
     app: JupyterFrontEnd,
     registry: ISettingRegistry,
     translator: ITranslator | null,
-    editorRegistry: IFormComponentRegistry | null
+    editorRegistry: IFormRendererRegistry | null
   ) => {
     const translator_ = translator ?? nullTranslator;
     const trans = translator_.load('jupyterlab');
@@ -91,12 +95,15 @@ const shortcuts: JupyterFrontEndPlugin<void> = {
     let loaded: { [name: string]: ISettingRegistry.IShortcut[] } = {};
 
     if (editorRegistry) {
-      editorRegistry.addRenderer('shortcuts', (props: any) => {
-        return renderShortCut({
-          external: getExternalForJupyterLab(registry, app, translator_),
-          ...props
-        });
-      });
+      const component: IFormRenderer = {
+        fieldRenderer: (props: any) => {
+          return renderShortCut({
+            external: getExternalForJupyterLab(registry, app, translator_),
+            ...props
+          });
+        }
+      };
+      editorRegistry.addRenderer(`${shortcuts.id}.shortcuts`, component);
     }
 
     /**
@@ -164,8 +171,13 @@ List of keyboard shortcuts:`,
           oldShortcuts === undefined ||
           !JSONExt.deepEqual(oldShortcuts, newShortcuts)
         ) {
+          // Empty the default values to avoid shortcut collisions.
           canonical = null;
-          await registry.reload(shortcuts.id);
+          const schema = registry.plugins[shortcuts.id]!.schema;
+          schema.properties!.shortcuts.default = [];
+
+          // Reload the settings.
+          await registry.load(shortcuts.id, true);
         }
       }
     });
diff --git a/packages/shortcuts-extension/src/renderer.tsx b/packages/shortcuts-extension/src/renderer.tsx
index f4449c77fd30..20788f063f38 100644
--- a/packages/shortcuts-extension/src/renderer.tsx
+++ b/packages/shortcuts-extension/src/renderer.tsx
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import React from 'react';
 import { IShortcutUIexternal, ShortcutUI } from './components';
 
diff --git a/packages/shortcuts-extension/style/base.css b/packages/shortcuts-extension/style/base.css
new file mode 100644
index 000000000000..f0866e135a15
--- /dev/null
+++ b/packages/shortcuts-extension/style/base.css
@@ -0,0 +1,393 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+/* Shortcut Input Style */
+
+.jp-Shortcuts-InputBox {
+  display: inline-flex;
+  padding-top: 2px;
+}
+
+.jp-Shortcuts-InputBoxNew {
+  margin-left: 10px;
+}
+
+.jp-mod-hidden {
+  display: none;
+}
+
+@keyframes slide-animation {
+  from {
+    width: 0;
+    left: 0;
+  }
+
+  to {
+    width: 120px;
+    left: 0;
+  }
+}
+
+.jp-Shortcuts-Input {
+  animation-duration: 0.5s;
+  animation-timing-function: ease-out;
+  animation-name: slide-animation;
+  border-width: var(--jp-border-width);
+  border-color: var(--jp-border-color3);
+  border-style: solid;
+  background-color: var(--jp-layout-color0);
+  margin-left: auto;
+  padding-left: 10px;
+  width: 120px;
+  height: 25px;
+  line-height: 25px;
+  display: block;
+}
+
+.jp-Shortcuts-Input:focus {
+  outline: none;
+  color: var(--jp-content-font-color1);
+  border-color: var(--jp-brand-color2);
+}
+
+.jp-mod-unavailable-Input:focus {
+  border-color: var(--jp-error-color2);
+}
+
+.jp-Shortcuts-InputText {
+  overflow-x: hidden;
+  overflow-y: hidden;
+  margin: 0;
+  margin-top: 4px;
+  padding: 0 5px;
+  height: 17px;
+  line-height: 17px;
+  width: fit-content;
+}
+
+.jp-mod-selected-InputText {
+  background-color: var(--jp-brand-color3);
+  overflow: hidden;
+}
+
+.jp-mod-waiting-InputText {
+  color: var(--jp-content-font-color3);
+}
+
+.jp-Shortcuts-Submit {
+  background-color: var(--jp-brand-color2);
+  border-radius: 0;
+  border: none;
+  color: var(--jp-layout-color0);
+  font-family: var(--jp-ui-font-family);
+  display: block;
+  height: 27px;
+  width: 26px;
+  cursor: pointer;
+}
+
+.jp-Shortcuts-Submit:focus {
+  outline: none;
+}
+
+.jp-Shortcuts-Submit .jp-icon3[fill] {
+  fill: var(--jp-layout-color1);
+}
+
+.jp-Shortcuts-Submit.jp-mod-defunc-Submit {
+  background-color: var(--jp-layout-color3);
+}
+
+.jp-Shortcuts-Submit.jp-mod-defunc-Submit .jp-icon3[fill] {
+  fill: var(--jp-inverse-layout-color1);
+}
+
+.jp-Shortcuts-Submit.jp-mod-conflict-Submit {
+  background-color: var(--jp-error-color1);
+}
+
+/* Shortcut Item Style */
+.jp-Shortcuts-Cell {
+  padding: 6px 12px;
+  display: table-cell;
+  width: 20%;
+  vertical-align: middle;
+}
+
+.jp-Shortcuts-ShortcutCell {
+  display: flex;
+  min-width: 100px;
+  flex-wrap: wrap;
+}
+
+.jp-Shortcuts-EmptyCell {
+  height: 32px;
+}
+
+.jp-Shortcuts-Row {
+  padding: 10px;
+  width: 100%;
+  display: table-row;
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color1);
+  vertical-align: middle;
+  background-color: var(--jp-layout-color0);
+}
+
+.jp-Shortcuts-Row:hover .jp-Shortcuts-ShortcutKeys {
+  border-color: var(--jp-border-color1);
+  background: var(--jp-layout-color2);
+}
+
+.jp-Shortcuts-Row:hover #add-link,
+.jp-Shortcuts-Row:hover #or {
+  display: block;
+}
+
+.jp-Shortcuts-ErrorMessage {
+  color: var(--jp-error-color1);
+  margin-top: 9px;
+}
+
+.jp-Shortcuts-ErrorButton {
+  line-height: 34px;
+  margin-left: 10px;
+}
+
+.jp-Shortcuts-ErrorButton button:nth-of-type(1) {
+  height: 25px;
+  margin-right: 5px;
+  background-color: var(--jp-border-color0);
+  color: white;
+  outline: none;
+}
+
+.jp-Shortcuts-ErrorButton button:nth-of-type(1):active,
+.jp-Shortcuts-ErrorButton button:nth-of-type(1):focus {
+  outline: none;
+  border: none;
+}
+
+.jp-Shortcuts-ErrorButton button:nth-of-type(2) {
+  height: 25px;
+  background-color: var(--jp-error-color1);
+  color: white;
+  outline: none;
+}
+
+.jp-Shortcuts-ErrorButton button:nth-of-type(2):active,
+.jp-Shortcuts-ErrorButton button:nth-of-type(2):focus {
+  outline: none;
+  border: none;
+}
+
+.jp-Shortcuts-ShortcutContainer {
+  display: flex;
+  flex-wrap: wrap;
+}
+
+.jp-Shortcuts-ShortcutContainer:hover .jp-Shortcuts-ShortcutKeys {
+  border-color: var(--jp-border-color3);
+  background: var(--jp-layout-color3);
+}
+
+.jp-Shortcuts-ShortcutKeysContainer {
+  font-size: var(--jp-code-font-size);
+  font-family: var(--jp-ui-font-family);
+  display: flex;
+}
+
+.jp-Shortcuts-ConflictContainer {
+  display: flex;
+  flex-wrap: wrap;
+  padding: 6px 12px;
+  margin-left: 20%;
+}
+
+.jp-Shortcuts-ShortcutKeys {
+  border-width: var(--jp-border-width);
+  border-color: var(--jp-layout-color0);
+  border-radius: var(--jp-border-radius);
+  padding: 5px 6px;
+  margin: 3px 0;
+}
+
+.jp-Shortcuts-Or {
+  margin-right: 12px;
+  margin-left: 12px;
+  margin-top: 8px;
+  color: var(--jp-content-font-color3);
+  display: none;
+}
+
+.jp-Shortcuts-Or:hover {
+  display: block;
+}
+
+.jp-Shortcuts-OrTwo {
+  margin-right: 12px;
+  margin-left: 12px;
+  margin-top: 8px;
+  color: var(--jp-content-font-color3);
+  display: block;
+}
+
+.jp-Shortcuts-Comma {
+  margin-top: 10px;
+  margin-right: 2px;
+  margin-left: 2px;
+}
+
+.jp-Shortcuts-Plus {
+  display: none;
+  background: var(--jp-brand-color3);
+  border-color: var(--jp-layout-color0);
+  border-radius: var(--jp-border-radius);
+  border-width: var(--jp-border-width);
+  margin: 3px 0;
+  padding: 5px 6px;
+}
+
+.jp-Shortcuts-Plus:hover {
+  background-color: var(--jp-brand-color2);
+}
+
+.jp-Shortcuts-Plus:active {
+  background-color: var(--jp-brand-color2);
+}
+
+.jp-Shortcuts-Reset {
+  color: var(--jp-brand-color2);
+  padding-left: 10px;
+}
+
+.jp-Shortcuts-Reset:hover {
+  color: var(--jp-brand-color1);
+}
+
+.jp-Shortcuts-SourceCell {
+  display: inline-block;
+}
+
+/* Shortcut List Style */
+.jp-Shortcuts-ShortcutList {
+  width: 100%;
+  display: table;
+  border-collapse: collapse;
+}
+
+.jp-Shortcuts-ShortcutListContainer {
+  overflow-y: scroll;
+  border: var(--jp-border-width) solid var(--jp-border-color1);
+}
+
+/* Shortcut Title Item Style */
+.jp-Shortcuts-Header {
+  display: flex;
+  cursor: pointer;
+}
+
+.jp-Shortcuts-Header:hover .jp-ShortcutTitleItem-sortButton .jp-icon3[fill],
+.jp-Shortcuts-Header:focus .jp-ShortcutTitleItem-sortButton .jp-icon3[fill] {
+  fill: var(--jp-ui-font-color0);
+}
+
+.jp-Shortcuts-Header:active .jp-ShortcutTitleItem-sortButton {
+  outline: none;
+}
+
+.jp-Shortcuts-CurrentHeader .jp-icon3[fill] {
+  fill: var(--jp-ui-font-color0);
+}
+
+/* Shortcut UI Style */
+
+.jp-Shortcuts-ShortcutUI {
+  display: flex;
+  flex-direction: column;
+  font-size: var(--jp-ui-font-size1);
+  font-family: var(--jp-ui-font-family);
+  color: var(--jp-content-font-color1);
+  min-width: 450px;
+  width: 100%;
+}
+
+/* TopNav Style */
+.jp-Shortcuts-Top {
+  display: block;
+}
+
+.jp-Shortcuts-TopNav {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  box-sizing: border-box;
+  font-size: var(--jp-ui-font-size1);
+  background-color: var(--jp-layout-color0);
+}
+
+.jp-Shortcuts-Symbols {
+  padding: 0 12px;
+}
+
+.jp-Shortcuts-Symbols td:nth-child(2) {
+  padding-right: 10px;
+}
+
+.jp-Shortcuts-Search {
+  height: 30px;
+}
+
+.jp-Shortcuts-Search > input {
+  box-shadow: none;
+}
+
+.jp-Shortcuts-AdvancedOptionsSmall {
+  width: 30%;
+}
+
+.jp-Shortcuts-AdvancedOptionsRight {
+  margin-top: 8px;
+}
+
+.jp-Shortcuts-AdvancedOptionsLink {
+  color: var(--jp-content-link-color);
+  text-decoration: none;
+  margin-right: 15px;
+}
+
+.jp-Shortcuts-AdvancedOptionsLink:hover {
+  color: var(--jp-brand-color0);
+}
+
+.jp-Shortcuts-AdvancedOptionsLink:active {
+  color: var(--jp-brand-color0);
+}
+
+.jp-Shortcuts-HeaderRowContainer {
+  padding-right: 14px;
+}
+
+.jp-Shortcuts-HeaderRow {
+  font-weight: bold;
+  font-size: var(--jp-ui-font-size1);
+  background-color: var(--jp-layout-color0);
+  width: 100%;
+  z-index: 1;
+  display: table;
+  padding: 10px 0;
+}
+
+.jp-Shortcuts-commandIcon {
+  margin-right: 13px;
+}
+
+.jp-Shortcuts-altIcon {
+  margin-right: 14px;
+}
+
+.jp-Shortcuts-controlIcon {
+  margin-left: 8px;
+  margin-right: 16px;
+}
diff --git a/packages/shortcuts-extension/style/index.css b/packages/shortcuts-extension/style/index.css
index 70579c095a5f..f2a875036f3f 100644
--- a/packages/shortcuts-extension/style/index.css
+++ b/packages/shortcuts-extension/style/index.css
@@ -6,3 +6,4 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
+@import url('./base.css');
diff --git a/packages/shortcuts-extension/style/index.js b/packages/shortcuts-extension/style/index.js
index ed162384cdde..d7ce681a90b2 100644
--- a/packages/shortcuts-extension/style/index.js
+++ b/packages/shortcuts-extension/style/index.js
@@ -6,3 +6,5 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
+
+import './base.css';
diff --git a/packages/shortcuts-extension/test/shortcuts.spec.ts b/packages/shortcuts-extension/test/shortcuts.spec.ts
index ad0ab8725070..cf0a4afc5caf 100644
--- a/packages/shortcuts-extension/test/shortcuts.spec.ts
+++ b/packages/shortcuts-extension/test/shortcuts.spec.ts
@@ -81,13 +81,11 @@ describe('@jupyterlab/shortcut-extension', () => {
 
       await settingRegistry.load(bar.id);
 
-      await Promise.resolve(
-        plugin.default.activate(
-          {
-            commands: new CommandRegistry()
-          } as any,
-          settingRegistry
-        )
+      void plugin.default.activate(
+        {
+          commands: new CommandRegistry()
+        } as any,
+        settingRegistry
       );
 
       const settings = await settingRegistry.load(plugin.default.id);
@@ -151,13 +149,11 @@ describe('@jupyterlab/shortcut-extension', () => {
 
       await settingRegistry.load(bar.id);
 
-      await Promise.resolve(
-        plugin.default.activate(
-          {
-            commands: new CommandRegistry()
-          } as any,
-          settingRegistry
-        )
+      void plugin.default.activate(
+        {
+          commands: new CommandRegistry()
+        } as any,
+        settingRegistry
       );
 
       const settings = await settingRegistry.load(plugin.default.id);
diff --git a/packages/shortcuts-extension/tsconfig.test.json b/packages/shortcuts-extension/tsconfig.test.json
index 967a53a1d6df..abe0a93be526 100644
--- a/packages/shortcuts-extension/tsconfig.test.json
+++ b/packages/shortcuts-extension/tsconfig.test.json
@@ -18,19 +18,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../application"
-    },
-    {
-      "path": "../settingregistry"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/statedb/.vscode/launch.json b/packages/statedb/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/statedb/.vscode/launch.json
+++ b/packages/statedb/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/statedb/babel.config.js b/packages/statedb/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/statedb/babel.config.js
+++ b/packages/statedb/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/statedb/jest.config.js b/packages/statedb/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/statedb/jest.config.js
+++ b/packages/statedb/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/statedb/package.json b/packages/statedb/package.json
index 20b2ac851870..4032c4b8f6e1 100644
--- a/packages/statedb/package.json
+++ b/packages/statedb/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/statedb",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "Package for managing state in Jupyterlab",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -21,7 +21,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}"
+    "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -30,25 +31,24 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0"
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/statedb/src/dataconnector.ts b/packages/statedb/src/dataconnector.ts
index b9fa091622aa..d93c6259fbd0 100644
--- a/packages/statedb/src/dataconnector.ts
+++ b/packages/statedb/src/dataconnector.ts
@@ -26,7 +26,8 @@ import { IDataConnector } from './interfaces';
  * class is a convenience superclass for connectors that only need to `fetch`.
  */
 export abstract class DataConnector<T, U = T, V = string, W = string>
-  implements IDataConnector<T, U, V, W> {
+  implements IDataConnector<T, U, V, W>
+{
   /**
    * Retrieve an item from the data connector.
    *
diff --git a/packages/statedb/src/restorablepool.ts b/packages/statedb/src/restorablepool.ts
index ab4bda8fe167..1470369d9f44 100644
--- a/packages/statedb/src/restorablepool.ts
+++ b/packages/statedb/src/restorablepool.ts
@@ -13,8 +13,10 @@ import { IObjectPool, IRestorable } from './interfaces';
  * @typeparam T - The type of object being tracked.
  */
 export class RestorablePool<
-  T extends IObservableDisposable = IObservableDisposable
-> implements IObjectPool<T>, IRestorable<T> {
+    T extends IObservableDisposable = IObservableDisposable
+  >
+  implements IObjectPool<T>, IRestorable<T>
+{
   /**
    * Create a new restorable pool.
    *
diff --git a/packages/statedb/src/statedb.ts b/packages/statedb/src/statedb.ts
index d603d978012f..935cbd09fe6a 100644
--- a/packages/statedb/src/statedb.ts
+++ b/packages/statedb/src/statedb.ts
@@ -11,7 +11,8 @@ import { IStateDB } from './tokens';
  */
 export class StateDB<
   T extends ReadonlyPartialJSONValue = ReadonlyPartialJSONValue
-> implements IStateDB<T> {
+> implements IStateDB<T>
+{
   /**
    * Create a new state database.
    *
@@ -147,10 +148,13 @@ export class StateDB<
 
     const { ids, values } = await this._list();
 
-    return values.reduce((acc, val, idx) => {
-      acc[ids[idx]] = val;
-      return acc;
-    }, {} as { [id: string]: T });
+    return values.reduce(
+      (acc, val, idx) => {
+        acc[ids[idx]] = val;
+        return acc;
+      },
+      {} as { [id: string]: T }
+    );
   }
 
   /**
diff --git a/packages/statedb/src/tokens.ts b/packages/statedb/src/tokens.ts
index a33a2385a325..6457c933145a 100644
--- a/packages/statedb/src/tokens.ts
+++ b/packages/statedb/src/tokens.ts
@@ -4,12 +4,15 @@
 import { ReadonlyPartialJSONValue, Token } from '@lumino/coreutils';
 import { IDataConnector } from './interfaces';
 
-/* tslint:disable */
 /**
  * The default state database token.
  */
-export const IStateDB = new Token<IStateDB>('@jupyterlab/coreutils:IStateDB');
-/* tslint:enable */
+export const IStateDB = new Token<IStateDB>(
+  '@jupyterlab/coreutils:IStateDB',
+  `A service for the JupyterLab state database.
+  Use this if you want to store data that will persist across page loads.
+  See "state database" for more information.`
+);
 
 /**
  * The description of a state database.
diff --git a/packages/statedb/test/restorablepool.spec.ts b/packages/statedb/test/restorablepool.spec.ts
index c27b44477eb5..852cae867c7f 100644
--- a/packages/statedb/test/restorablepool.spec.ts
+++ b/packages/statedb/test/restorablepool.spec.ts
@@ -2,7 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { RestorablePool } from '@jupyterlab/statedb';
-import { signalToPromise } from '@jupyterlab/testutils';
+import { signalToPromise } from '@jupyterlab/testing';
 import { IObservableDisposable } from '@lumino/disposable';
 import { ISignal, Signal } from '@lumino/signaling';
 
@@ -87,13 +87,21 @@ describe('@jupyterlab/coreutils', () => {
     });
 
     describe('#currentChanged', () => {
+      let instance: ObservableDisposable;
+
+      beforeEach(() => {
+        instance = new ObservableDisposable();
+      });
+
+      afterEach(() => {
+        instance.dispose();
+      });
+
       it('should emit when the current object has been updated', async () => {
-        const instance = new ObservableDisposable();
         const promise = signalToPromise(pool.currentChanged);
         void pool.add(instance);
         pool.current = instance;
-        await promise;
-        instance.dispose();
+        await expect(promise).resolves.not.toThrow();
       });
     });
 
diff --git a/packages/statedb/tsconfig.test.json b/packages/statedb/tsconfig.test.json
index 717c38a1f87b..e96af67102d5 100644
--- a/packages/statedb/tsconfig.test.json
+++ b/packages/statedb/tsconfig.test.json
@@ -6,7 +6,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/statusbar-extension/package.json b/packages/statusbar-extension/package.json
index 173ce4e50bf2..0740b01f7ab8 100644
--- a/packages/statusbar-extension/package.json
+++ b/packages/statusbar-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/statusbar-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Statusbar Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/**/*.js",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
     "schema/*.json",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,26 +37,18 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/statusbar": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/statusbar": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
-    "@types/react": "^17.0.0",
-    "@types/react-dom": "^17.0.0",
+    "@types/react": "^18.0.26",
+    "@types/react-dom": "^18.0.9",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/statusbar-extension/schema/plugin.json b/packages/statusbar-extension/schema/plugin.json
index fd079e27f92e..807f2a01b122 100644
--- a/packages/statusbar-extension/schema/plugin.json
+++ b/packages/statusbar-extension/schema/plugin.json
@@ -7,16 +7,16 @@
         "id": "jp-mainmenu-view",
         "items": [
           {
-            "type": "separator",
-            "rank": 1
-          },
-          {
-            "command": "statusbar:toggle",
-            "rank": 1
-          },
-          {
-            "type": "separator",
-            "rank": 1
+            "type": "submenu",
+            "submenu": {
+              "id": "jp-mainmenu-view-appearance",
+              "items": [
+                {
+                  "command": "statusbar:toggle",
+                  "rank": 15
+                }
+              ]
+            }
           }
         ]
       }
diff --git a/packages/statusbar-extension/src/index.ts b/packages/statusbar-extension/src/index.ts
index fc7f8c37a42f..03ec3704f62f 100644
--- a/packages/statusbar-extension/src/index.ts
+++ b/packages/statusbar-extension/src/index.ts
@@ -10,45 +10,19 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-import {
-  ICommandPalette,
-  ISessionContext,
-  ISessionContextDialogs,
-  sessionContextDialogs
-} from '@jupyterlab/apputils';
-import { Cell, CodeCell } from '@jupyterlab/cells';
-import {
-  CodeConsole,
-  ConsolePanel,
-  IConsoleTracker
-} from '@jupyterlab/console';
-import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
-import {
-  INotebookTracker,
-  Notebook,
-  NotebookPanel
-} from '@jupyterlab/notebook';
+import { ICommandPalette } from '@jupyterlab/apputils';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import {
-  IStatusBar,
-  KernelStatus,
-  LineCol,
-  RunningSessions,
-  StatusBar
-} from '@jupyterlab/statusbar';
+import { IStatusBar, StatusBar } from '@jupyterlab/statusbar';
 import { ITranslator } from '@jupyterlab/translation';
-import { Switch } from '@jupyterlab/ui-components';
-import { CommandRegistry } from '@lumino/commands';
-import { Title, Widget } from '@lumino/widgets';
 
-export const STATUSBAR_PLUGIN_ID = '@jupyterlab/statusbar-extension:plugin';
+const STATUSBAR_PLUGIN_ID = '@jupyterlab/statusbar-extension:plugin';
 
 /**
  * Initialization data for the statusbar extension.
  */
 const statusBar: JupyterFrontEndPlugin<IStatusBar> = {
   id: STATUSBAR_PLUGIN_ID,
+  description: 'Provides the application status bar.',
   requires: [ITranslator],
   provides: IStatusBar,
   autoStart: true,
@@ -76,7 +50,7 @@ const statusBar: JupyterFrontEndPlugin<IStatusBar> = {
 
     app.commands.addCommand(command, {
       label: trans.__('Show Status Bar'),
-      execute: (args: any) => {
+      execute: () => {
         statusBar.setHidden(statusBar.isVisible);
         if (settingRegistry) {
           void settingRegistry.set(
@@ -89,6 +63,14 @@ const statusBar: JupyterFrontEndPlugin<IStatusBar> = {
       isToggled: () => statusBar.isVisible
     });
 
+    app.commands.commandExecuted.connect((registry, executed) => {
+      if (executed.id === 'application:reset-layout' && !statusBar.isVisible) {
+        app.commands.execute(command).catch(reason => {
+          console.error('Failed to show the status bar.', reason);
+        });
+      }
+    });
+
     if (palette) {
       palette.addItem({ command, category });
     }
@@ -117,297 +99,4 @@ const statusBar: JupyterFrontEndPlugin<IStatusBar> = {
   optional: [ILabShell, ISettingRegistry, ICommandPalette]
 };
 
-/**
- * A plugin that provides a kernel status item to the status bar.
- */
-export const kernelStatus: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/statusbar-extension:kernel-status',
-  autoStart: true,
-  requires: [
-    IStatusBar,
-    INotebookTracker,
-    IConsoleTracker,
-    ILabShell,
-    ITranslator
-  ],
-  optional: [ISessionContextDialogs],
-  activate: (
-    app: JupyterFrontEnd,
-    statusBar: IStatusBar,
-    notebookTracker: INotebookTracker,
-    consoleTracker: IConsoleTracker,
-    labShell: ILabShell,
-    translator: ITranslator,
-    sessionDialogs: ISessionContextDialogs | null
-  ) => {
-    // When the status item is clicked, launch the kernel
-    // selection dialog for the current session.
-    let currentSession: ISessionContext | null = null;
-    const changeKernel = async () => {
-      if (!currentSession) {
-        return;
-      }
-      await (sessionDialogs || sessionContextDialogs).selectKernel(
-        currentSession,
-        translator
-      );
-    };
-
-    // Create the status item.
-    const item = new KernelStatus({ onClick: changeKernel }, translator);
-
-    // When the title of the active widget changes, update the label
-    // of the hover text.
-    const onTitleChanged = (title: Title<Widget>) => {
-      item.model!.activityName = title.label;
-    };
-
-    // Keep the session object on the status item up-to-date.
-    labShell.currentChanged.connect((_, change) => {
-      const { oldValue, newValue } = change;
-
-      // Clean up after the old value if it exists,
-      // listen for changes to the title of the activity
-      if (oldValue) {
-        oldValue.title.changed.disconnect(onTitleChanged);
-      }
-      if (newValue) {
-        newValue.title.changed.connect(onTitleChanged);
-      }
-
-      // Grab the session off of the current widget, if it exists.
-      if (newValue && consoleTracker.has(newValue)) {
-        currentSession = (newValue as ConsolePanel).sessionContext;
-      } else if (newValue && notebookTracker.has(newValue)) {
-        currentSession = (newValue as NotebookPanel).sessionContext;
-      } else {
-        currentSession = null;
-      }
-      item.model!.sessionContext = currentSession;
-    });
-
-    statusBar.registerStatusItem(
-      '@jupyterlab/statusbar-extension:kernel-status',
-      {
-        item,
-        align: 'left',
-        rank: 1,
-        isActive: () => {
-          const current = labShell.currentWidget;
-          return (
-            !!current &&
-            (notebookTracker.has(current) || consoleTracker.has(current))
-          );
-        }
-      }
-    );
-  }
-};
-
-/**
- * A plugin providing a line/column status item to the application.
- */
-export const lineColItem: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/statusbar-extension:line-col-status',
-  autoStart: true,
-  requires: [
-    IStatusBar,
-    INotebookTracker,
-    IEditorTracker,
-    IConsoleTracker,
-    ILabShell,
-    ITranslator
-  ],
-  activate: (
-    _: JupyterFrontEnd,
-    statusBar: IStatusBar,
-    notebookTracker: INotebookTracker,
-    editorTracker: IEditorTracker,
-    consoleTracker: IConsoleTracker,
-    labShell: ILabShell,
-    translator: ITranslator
-  ) => {
-    const item = new LineCol(translator);
-
-    const onActiveCellChanged = (notebook: Notebook, cell: Cell) => {
-      item.model!.editor = cell && cell.editor;
-    };
-
-    const onPromptCreated = (console: CodeConsole, prompt: CodeCell) => {
-      item.model!.editor = prompt && prompt.editor;
-    };
-
-    labShell.currentChanged.connect((_, change) => {
-      const { oldValue, newValue } = change;
-
-      // Check if we need to disconnect the console listener
-      // or the notebook active cell listener
-      if (oldValue && consoleTracker.has(oldValue)) {
-        (oldValue as ConsolePanel).console.promptCellCreated.disconnect(
-          onPromptCreated
-        );
-      } else if (oldValue && notebookTracker.has(oldValue)) {
-        (oldValue as NotebookPanel).content.activeCellChanged.disconnect(
-          onActiveCellChanged
-        );
-      }
-
-      // Wire up the new editor to the model if it exists
-      if (newValue && consoleTracker.has(newValue)) {
-        (newValue as ConsolePanel).console.promptCellCreated.connect(
-          onPromptCreated
-        );
-        const prompt = (newValue as ConsolePanel).console.promptCell;
-        item.model!.editor = prompt && prompt.editor;
-      } else if (newValue && notebookTracker.has(newValue)) {
-        (newValue as NotebookPanel).content.activeCellChanged.connect(
-          onActiveCellChanged
-        );
-        const cell = (newValue as NotebookPanel).content.activeCell;
-        item.model!.editor = cell && cell.editor;
-      } else if (newValue && editorTracker.has(newValue)) {
-        item.model!.editor = (newValue as IDocumentWidget<
-          FileEditor
-        >).content.editor;
-      } else {
-        item.model!.editor = null;
-      }
-    });
-
-    // Add the status item to the status bar.
-    statusBar.registerStatusItem(
-      '@jupyterlab/statusbar-extension:line-col-status',
-      {
-        item,
-        align: 'right',
-        rank: 2,
-        isActive: () => {
-          const current = labShell.currentWidget;
-          return (
-            !!current &&
-            (notebookTracker.has(current) ||
-              editorTracker.has(current) ||
-              consoleTracker.has(current))
-          );
-        }
-      }
-    );
-  }
-};
-
-/*
- * A plugin providing running terminals and sessions information
- * to the status bar.
- */
-export const runningSessionsItem: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/statusbar-extension:running-sessions-status',
-  autoStart: true,
-  requires: [IStatusBar, ITranslator],
-  activate: (
-    app: JupyterFrontEnd,
-    statusBar: IStatusBar,
-    translator: ITranslator
-  ) => {
-    const item = new RunningSessions({
-      onClick: () => app.shell.activateById('jp-running-sessions'),
-      serviceManager: app.serviceManager,
-      translator
-    });
-
-    statusBar.registerStatusItem(
-      '@jupyterlab/statusbar-extension:running-sessions-status',
-      {
-        item,
-        align: 'left',
-        rank: 0
-      }
-    );
-  }
-};
-
-/**
- * The simple interface mode switch in the status bar.
- */
-const modeSwitch: JupyterFrontEndPlugin<void> = {
-  id: '@jupyterlab/statusbar-extension:mode-switch',
-  requires: [ILabShell, ITranslator, IStatusBar],
-  optional: [ISettingRegistry],
-  activate: (
-    app: JupyterFrontEnd,
-    shell: ILabShell,
-    translator: ITranslator,
-    statusBar: IStatusBar,
-    settingRegistry: ISettingRegistry | null
-  ) => {
-    const trans = translator.load('jupyterlab');
-    const modeSwitch = new Switch();
-    modeSwitch.id = 'jp-single-document-mode';
-
-    modeSwitch.valueChanged.connect((_, args) => {
-      shell.mode = args.newValue ? 'single-document' : 'multiple-document';
-    });
-    shell.modeChanged.connect((_, mode) => {
-      modeSwitch.value = mode === 'single-document';
-    });
-
-    if (settingRegistry) {
-      const loadSettings = settingRegistry.load(STATUSBAR_PLUGIN_ID);
-      const updateSettings = (settings: ISettingRegistry.ISettings): void => {
-        const startMode = settings.get('startMode').composite as string;
-        if (startMode) {
-          shell.mode =
-            startMode === 'single' ? 'single-document' : 'multiple-document';
-        }
-      };
-
-      Promise.all([loadSettings, app.restored])
-        .then(([settings]) => {
-          updateSettings(settings);
-        })
-        .catch((reason: Error) => {
-          console.error(reason.message);
-        });
-    }
-
-    modeSwitch.value = shell.mode === 'single-document';
-
-    // Show the current file browser shortcut in its title.
-    const updateModeSwitchTitle = () => {
-      const binding = app.commands.keyBindings.find(
-        b => b.command === 'application:toggle-mode'
-      );
-      if (binding) {
-        const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
-        modeSwitch.caption = trans.__('Simple Interface (%1)', ks);
-      } else {
-        modeSwitch.caption = trans.__('Simple Interface');
-      }
-    };
-    updateModeSwitchTitle();
-    app.commands.keyBindingChanged.connect(() => {
-      updateModeSwitchTitle();
-    });
-
-    modeSwitch.label = trans.__('Simple');
-
-    statusBar.registerStatusItem(
-      '@jupyterlab/statusbar-extension:mode-switch',
-      {
-        item: modeSwitch,
-        align: 'left',
-        rank: -1
-      }
-    );
-  },
-  autoStart: true
-};
-
-const plugins: JupyterFrontEndPlugin<any>[] = [
-  statusBar,
-  lineColItem,
-  kernelStatus,
-  runningSessionsItem,
-  modeSwitch
-];
-
-export default plugins;
+export default statusBar;
diff --git a/packages/statusbar-extension/style/index.css b/packages/statusbar-extension/style/index.css
index e9283e47a781..92e10e6790b7 100644
--- a/packages/statusbar-extension/style/index.css
+++ b/packages/statusbar-extension/style/index.css
@@ -4,13 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/statusbar/style/index.css');
-@import url('~@jupyterlab/docregistry/style/index.css');
+@import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
-@import url('~@jupyterlab/cells/style/index.css');
-@import url('~@jupyterlab/console/style/index.css');
-@import url('~@jupyterlab/fileeditor/style/index.css');
-@import url('~@jupyterlab/notebook/style/index.css');
diff --git a/packages/statusbar-extension/style/index.js b/packages/statusbar-extension/style/index.js
index 267fc770c6ce..3f77dc11f626 100644
--- a/packages/statusbar-extension/style/index.js
+++ b/packages/statusbar-extension/style/index.js
@@ -4,13 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@lumino/widgets/style/index.js';
-import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/statusbar/style/index.js';
-import '@jupyterlab/docregistry/style/index.js';
+import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/application/style/index.js';
-import '@jupyterlab/cells/style/index.js';
-import '@jupyterlab/console/style/index.js';
-import '@jupyterlab/fileeditor/style/index.js';
-import '@jupyterlab/notebook/style/index.js';
diff --git a/packages/statusbar-extension/tsconfig.json b/packages/statusbar-extension/tsconfig.json
index 721311d59a2e..46d8246acedc 100644
--- a/packages/statusbar-extension/tsconfig.json
+++ b/packages/statusbar-extension/tsconfig.json
@@ -12,21 +12,6 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../console"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../notebook"
-    },
     {
       "path": "../settingregistry"
     },
@@ -35,9 +20,6 @@
     },
     {
       "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/statusbar/.vscode/launch.json b/packages/statusbar/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/statusbar/.vscode/launch.json
+++ b/packages/statusbar/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/statusbar/babel.config.js b/packages/statusbar/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/statusbar/babel.config.js
+++ b/packages/statusbar/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/statusbar/jest.config.js b/packages/statusbar/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/statusbar/jest.config.js
+++ b/packages/statusbar/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/statusbar/package.json b/packages/statusbar/package.json
index 376bc15bcdf4..39080142062b 100644
--- a/packages/statusbar/package.json
+++ b/packages/statusbar/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/statusbar",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab statusbar package.",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -22,7 +22,8 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -31,34 +32,26 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "csstype": "~3.0.3",
-    "react": "^17.0.1",
-    "typestyle": "^2.0.4"
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/resize-observer-browser": "^0.1.7",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/statusbar/src/components/group.tsx b/packages/statusbar/src/components/group.tsx
index c1ed52b24ae9..8a6357e640f9 100644
--- a/packages/statusbar/src/components/group.tsx
+++ b/packages/statusbar/src/components/group.tsx
@@ -2,10 +2,6 @@
 // Distributed under the terms of the Modified BSD License.
 
 import * as React from 'react';
-import { classes, style } from 'typestyle/lib';
-import { centeredFlex, leftToRight } from '../style/layout';
-
-const groupItemLayout = style(centeredFlex, leftToRight);
 
 /**
  * A tsx component for a set of items logically grouped together.
@@ -17,7 +13,7 @@ export function GroupItem(
   const numChildren = React.Children.count(children);
 
   return (
-    <div className={classes(groupItemLayout, className)} {...rest}>
+    <div className={`jp-StatusBar-GroupItem ${className || ''}`} {...rest}>
       {React.Children.map(children, (child, i) => {
         if (i === 0) {
           return <div style={{ marginRight: `${spacing}px` }}>{child}</div>;
diff --git a/packages/statusbar/src/components/hover.tsx b/packages/statusbar/src/components/hover.tsx
index c4b36713b61a..a1b35ec39fe6 100644
--- a/packages/statusbar/src/components/hover.tsx
+++ b/packages/statusbar/src/components/hover.tsx
@@ -1,15 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { HoverBox } from '@jupyterlab/apputils';
+import { HoverBox } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
 import { PanelLayout, Widget } from '@lumino/widgets';
-import { style } from 'typestyle/lib';
-import { clickedItem, interactiveItem } from '../style/statusbar';
-
-const hoverItem = style({
-  boxShadow: '0px 4px 4px rgba(0, 0, 0, 0.25)'
-});
 
 /**
  * Create and show a popup component.
@@ -36,7 +30,7 @@ export class Popup extends Widget {
   constructor(options: Omit<Popup.IOptions, 'startHidden'>) {
     super();
     this._body = options.body;
-    this._body.addClass(hoverItem);
+    this._body.addClass('jp-StatusBar-HoverItem');
     this._anchor = options.anchor;
     this._align = options.align;
     if (options.hasDynamicSize) {
@@ -54,12 +48,12 @@ export class Popup extends Widget {
   /**
    * Attach the popup widget to the page.
    */
-  launch() {
+  launch(): void {
     this._setGeometry();
     Widget.attach(this, document.body);
     this.update();
-    this._anchor.addClass(clickedItem);
-    this._anchor.removeClass(interactiveItem);
+    this._anchor.addClass('jp-mod-clicked');
+    this._anchor.removeClass('jp-mod-highlight');
   }
 
   /**
@@ -103,8 +97,8 @@ export class Popup extends Widget {
   dispose(): void {
     this._observer?.disconnect();
     super.dispose();
-    this._anchor.removeClass(clickedItem);
-    this._anchor.addClass(interactiveItem);
+    this._anchor.removeClass('jp-mod-clicked');
+    this._anchor.addClass('jp-mod-highlight');
   }
 
   /**
diff --git a/packages/statusbar/src/components/progressCircle.tsx b/packages/statusbar/src/components/progressCircle.tsx
index b17212096e3e..6ffa4d747843 100644
--- a/packages/statusbar/src/components/progressCircle.tsx
+++ b/packages/statusbar/src/components/progressCircle.tsx
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 import React from 'react';
 export namespace ProgressCircle {
   /**
@@ -8,9 +13,17 @@ export namespace ProgressCircle {
      * The current progress percentage, from 0 to 100
      */
     progress: number;
-
+    /**
+     * The aria-label for the widget
+     */
+    label?: string;
+    /**
+     * Element width
+     */
     width?: number;
-
+    /**
+     * Element height
+     */
     height?: number;
   }
 }
@@ -37,6 +50,7 @@ export function ProgressCircle(props: ProgressCircle.IProps): JSX.Element {
     <div
       className={'jp-Statusbar-ProgressCircle'}
       role="progressbar"
+      aria-label={props.label || 'Unlabelled progress circle'}
       aria-valuemin={0}
       aria-valuemax={100}
       aria-valuenow={props.progress}
diff --git a/packages/statusbar/src/components/text.tsx b/packages/statusbar/src/components/text.tsx
index 5adab8803c3a..c426e1641f17 100644
--- a/packages/statusbar/src/components/text.tsx
+++ b/packages/statusbar/src/components/text.tsx
@@ -2,8 +2,6 @@
 // Distributed under the terms of the Modified BSD License.
 
 import * as React from 'react';
-import { classes } from 'typestyle/lib';
-import { textItem } from '../style/text';
 
 /**
  * A namespace for TextItem statics.
@@ -33,7 +31,11 @@ export function TextItem(
 ): React.ReactElement<TextItem.IProps> {
   const { title, source, className, ...rest } = props;
   return (
-    <span className={classes(textItem, className)} title={title} {...rest}>
+    <span
+      className={`jp-StatusBar-TextItem ${className}`}
+      title={title}
+      {...rest}
+    >
       {source}
     </span>
   );
diff --git a/packages/statusbar/src/index.ts b/packages/statusbar/src/index.ts
index 450fe859a3b9..3ba2cc08a963 100644
--- a/packages/statusbar/src/index.ts
+++ b/packages/statusbar/src/index.ts
@@ -8,7 +8,5 @@
  */
 
 export * from './components';
-export * from './defaults';
 export * from './statusbar';
-export * from './style/statusbar';
 export * from './tokens';
diff --git a/packages/statusbar/src/statusbar.ts b/packages/statusbar/src/statusbar.ts
index 58da932baa6f..69e3d3cafe17 100644
--- a/packages/statusbar/src/statusbar.ts
+++ b/packages/statusbar/src/statusbar.ts
@@ -9,13 +9,6 @@ import {
 } from '@lumino/disposable';
 import { Message } from '@lumino/messaging';
 import { Panel, PanelLayout, Widget } from '@lumino/widgets';
-import {
-  statusBar as barStyle,
-  item as itemStyle,
-  leftSide as leftSideStyle,
-  rightSide as rightSideStyle,
-  side as sideStyle
-} from './style/statusbar';
 import { IStatusBar } from './tokens';
 
 /**
@@ -24,7 +17,7 @@ import { IStatusBar } from './tokens';
 export class StatusBar extends Widget implements IStatusBar {
   constructor() {
     super();
-    this.addClass(barStyle);
+    this.addClass('jp-StatusBar-Widget');
 
     const rootLayout = (this.layout = new PanelLayout());
 
@@ -32,13 +25,9 @@ export class StatusBar extends Widget implements IStatusBar {
     const middlePanel = (this._middlePanel = new Panel());
     const rightPanel = (this._rightSide = new Panel());
 
-    leftPanel.addClass(sideStyle);
-    leftPanel.addClass(leftSideStyle);
-
-    middlePanel.addClass(sideStyle);
-
-    rightPanel.addClass(sideStyle);
-    rightPanel.addClass(rightSideStyle);
+    leftPanel.addClass('jp-StatusBar-Left');
+    middlePanel.addClass('jp-StatusBar-Middle');
+    rightPanel.addClass('jp-StatusBar-Right');
 
     rootLayout.addWidget(leftPanel);
     rootLayout.addWidget(middlePanel);
@@ -75,7 +64,7 @@ export class StatusBar extends Widget implements IStatusBar {
 
     const rankItem = { id, rank };
 
-    fullStatusItem.item.addClass(itemStyle);
+    fullStatusItem.item.addClass('jp-StatusBar-Item');
     this._statusItems[id] = fullStatusItem;
 
     if (align === 'left') {
@@ -116,7 +105,7 @@ export class StatusBar extends Widget implements IStatusBar {
   /**
    * Dispose of the status bar.
    */
-  dispose() {
+  dispose(): void {
     this._leftRankItems.length = 0;
     this._rightRankItems.length = 0;
     this._disposables.dispose();
@@ -126,7 +115,7 @@ export class StatusBar extends Widget implements IStatusBar {
   /**
    * Handle an 'update-request' message to the status bar.
    */
-  protected onUpdateRequest(msg: Message) {
+  protected onUpdateRequest(msg: Message): void {
     this._refreshAll();
     super.onUpdateRequest(msg);
   }
diff --git a/packages/statusbar/src/style/layout.ts b/packages/statusbar/src/style/layout.ts
deleted file mode 100644
index 52af1f0290e6..000000000000
--- a/packages/statusbar/src/style/layout.ts
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { NestedCSSProperties } from 'typestyle/lib/types';
-
-export const centeredFlex: NestedCSSProperties = {
-  display: 'flex',
-  alignItems: 'center'
-};
-
-export const leftToRight: NestedCSSProperties = {
-  flexDirection: 'row'
-};
-
-export const rightToLeft: NestedCSSProperties = {
-  flexDirection: 'row-reverse'
-};
-
-export const equiDistant: NestedCSSProperties = {
-  justifyContent: 'space-between'
-};
diff --git a/packages/statusbar/src/style/lineForm.ts b/packages/statusbar/src/style/lineForm.ts
deleted file mode 100644
index 37b12d548034..000000000000
--- a/packages/statusbar/src/style/lineForm.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { style } from 'typestyle/lib';
-import { NestedCSSProperties } from 'typestyle/lib/types';
-
-export const hoverItem = style({
-  boxShadow: '0px 4px 4px rgba(0, 0, 0, 0.25)'
-});
-
-export const lineFormSearch = style({
-  padding: '4px 12px',
-  backgroundColor: 'var(--jp-layout-color2)',
-  boxShadow: 'var(--jp-toolbar-box-shadow)',
-  zIndex: 2,
-  fontSize: 'var(--jp-ui-font-size1)'
-});
-
-export const lineFormCaption = style({
-  fontSize: 'var(--jp-ui-font-size0)',
-  lineHeight: 'var(--jp-ui-font-size1)',
-  marginTop: '4px',
-  color: 'var(--jp-ui-font-color0)'
-});
-
-export const baseLineForm: NestedCSSProperties = {
-  border: 'none',
-  borderRadius: '0px',
-  position: 'absolute',
-  backgroundSize: '16px',
-  backgroundRepeat: 'no-repeat',
-  backgroundPosition: 'center',
-  outline: 'none',
-  top: '0px',
-  right: '0px'
-};
-
-export const lineFormButtonDiv = style(baseLineForm, {
-  top: '4px',
-  right: '8px',
-  height: '24px',
-  padding: '0px 12px',
-  width: '12px'
-});
-
-export const lineFormButtonIcon = style(baseLineForm, {
-  backgroundColor: 'var(--jp-brand-color1)',
-  height: '100%',
-  width: '100%',
-  boxSizing: 'border-box',
-  padding: '4px 6px'
-});
-
-export const lineFormButton = style(baseLineForm, {
-  backgroundColor: 'transparent',
-  height: '100%',
-  width: '100%',
-  boxSizing: 'border-box'
-});
-
-export const lineFormWrapper = style({
-  overflow: 'hidden',
-  padding: '0px 8px',
-  border: '1px solid var(--jp-border-color0)',
-  backgroundColor: 'var(--jp-input-active-background)',
-  height: '22px'
-});
-
-export const lineFormWrapperFocusWithin = style({
-  border: 'var(--jp-border-width) solid var(--md-blue-500)',
-  boxShadow: 'inset 0 0 4px var(--md-blue-300)'
-});
-
-export const lineFormInput = style({
-  background: 'transparent',
-  width: '200px',
-  height: '100%',
-  border: 'none',
-  outline: 'none',
-  color: 'var(--jp-ui-font-color0)',
-  lineHeight: '28px'
-});
diff --git a/packages/statusbar/src/style/statusbar.ts b/packages/statusbar/src/style/statusbar.ts
deleted file mode 100644
index f73a67bf2c62..000000000000
--- a/packages/statusbar/src/style/statusbar.ts
+++ /dev/null
@@ -1,62 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { style } from 'typestyle/lib';
-import { centeredFlex, leftToRight, rightToLeft } from './layout';
-import { textItem } from './text';
-import vars from './variables';
-
-const itemPadding = {
-  paddingLeft: vars.itemPadding,
-  paddingRight: vars.itemPadding
-};
-
-const interactiveHover = {
-  $nest: {
-    '&:hover': {
-      backgroundColor: vars.hoverColor
-    }
-  }
-};
-
-const clicked = {
-  backgroundColor: vars.clickColor,
-  $nest: {
-    ['.' + textItem]: {
-      color: vars.textClickColor
-    }
-  }
-};
-
-export const statusBar = style(
-  {
-    background: vars.backgroundColor,
-    minHeight: vars.height,
-    justifyContent: 'space-between',
-    paddingLeft: vars.statusBarPadding,
-    paddingRight: vars.statusBarPadding
-  },
-  centeredFlex
-);
-
-export const side = style(centeredFlex);
-
-export const leftSide = style(leftToRight);
-
-export const rightSide = style(rightToLeft);
-
-export const item = style(
-  {
-    maxHeight: vars.height,
-    marginLeft: vars.itemMargin,
-    marginRight: vars.itemMargin,
-    height: vars.height,
-    whiteSpace: vars.whiteSpace,
-    textOverflow: vars.textOverflow,
-    color: vars.textColor
-  },
-  itemPadding
-);
-
-export const clickedItem = style(clicked);
-export const interactiveItem = style(interactiveHover);
diff --git a/packages/statusbar/src/style/text.ts b/packages/statusbar/src/style/text.ts
deleted file mode 100644
index 6b12ae4d9f81..000000000000
--- a/packages/statusbar/src/style/text.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { style } from 'typestyle/lib';
-import { NestedCSSProperties } from 'typestyle/lib/types';
-import vars from './variables';
-
-export const baseText: NestedCSSProperties = {
-  fontSize: vars.fontSize,
-  fontFamily: vars.fontFamily
-};
-
-export const textItem = style(baseText, {
-  lineHeight: '24px',
-  color: vars.textColor
-});
diff --git a/packages/statusbar/src/style/variables.ts b/packages/statusbar/src/style/variables.ts
deleted file mode 100644
index 27f0cda77b6a..000000000000
--- a/packages/statusbar/src/style/variables.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-import { Property } from 'csstype';
-
-export default {
-  hoverColor: 'var(--jp-layout-color3)',
-  clickColor: 'var(--jp-brand-color1)',
-  backgroundColor: 'var(--jp-layout-color2)',
-  height: 'var(--jp-statusbar-height)',
-  fontSize: 'var(--jp-ui-font-size1)',
-  fontFamily: 'var(--jp-ui-font-family)',
-  textColor: 'var(--jp-ui-font-color1)',
-  textClickColor: 'white',
-  itemMargin: '2px',
-  itemPadding: '6px',
-  statusBarPadding: '10px',
-  interItemHalfSpacing: '2px', // this amount accounts for half the spacing between items
-  whiteSpace: 'nowrap' as Property.WhiteSpace,
-  textOverflow: 'ellipsis'
-};
diff --git a/packages/statusbar/src/tokens.ts b/packages/statusbar/src/tokens.ts
index 6abbbce4a232..aae17a74675f 100644
--- a/packages/statusbar/src/tokens.ts
+++ b/packages/statusbar/src/tokens.ts
@@ -8,7 +8,8 @@ import { Widget } from '@lumino/widgets';
 
 // tslint:disable-next-line:variable-name
 export const IStatusBar = new Token<IStatusBar>(
-  '@jupyterlab/statusbar:IStatusBar'
+  '@jupyterlab/statusbar:IStatusBar',
+  'A service for the status bar on the application. Use this if you want to add new status bar items.'
 );
 
 /**
diff --git a/packages/statusbar/style/base.css b/packages/statusbar/style/base.css
index 4d0d42bb0b7f..e8ff7f090a14 100644
--- a/packages/statusbar/style/base.css
+++ b/packages/statusbar/style/base.css
@@ -4,14 +4,77 @@
 |----------------------------------------------------------------------------*/
 
 /*-----------------------------------------------------------------------------
-| Variables
+| Styles
 |----------------------------------------------------------------------------*/
 
-/*-----------------------------------------------------------------------------
+.jp-StatusBar-Widget {
+  display: flex;
+  align-items: center;
+  background: var(--jp-layout-color2);
+  min-height: var(--jp-statusbar-height);
+  justify-content: space-between;
+  padding: 0 10px;
+}
 
-/*-----------------------------------------------------------------------------
-| Styles
-|----------------------------------------------------------------------------*/
+.jp-StatusBar-Left {
+  display: flex;
+  align-items: center;
+  flex-direction: row;
+}
+
+.jp-StatusBar-Middle {
+  display: flex;
+  align-items: center;
+}
+
+.jp-StatusBar-Right {
+  display: flex;
+  align-items: center;
+  flex-direction: row-reverse;
+}
+
+.jp-StatusBar-Item {
+  max-height: var(--jp-statusbar-height);
+  margin: 0 2px;
+  height: var(--jp-statusbar-height);
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  color: var(--jp-ui-font-color1);
+  padding: 0 6px;
+}
+
+.jp-mod-highlighted:hover {
+  background-color: var(--jp-layout-color3);
+}
+
+.jp-mod-clicked {
+  background-color: var(--jp-brand-color1);
+}
+
+.jp-mod-clicked:hover {
+  background-color: var(--jp-brand-color0);
+}
+
+.jp-mod-clicked .jp-StatusBar-TextItem {
+  color: var(--jp-ui-inverse-font-color1);
+}
+
+.jp-StatusBar-HoverItem {
+  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
+}
+
+.jp-StatusBar-TextItem {
+  font-size: var(--jp-ui-font-size1);
+  font-family: var(--jp-ui-font-family);
+  line-height: 24px;
+  color: var(--jp-ui-font-color1);
+}
+
+.jp-StatusBar-GroupItem {
+  display: flex;
+  align-items: center;
+  flex-direction: row;
+}
 
 .jp-Statusbar-ProgressCircle svg {
   display: block;
@@ -20,6 +83,7 @@
   height: 24px;
   align-self: normal;
 }
+
 .jp-Statusbar-ProgressCircle path {
   fill: var(--jp-inverse-layout-color3);
 }
@@ -32,6 +96,7 @@
   overflow: hidden;
   align-self: center;
 }
+
 .jp-Statusbar-ProgressBar-progress-bar > div {
   background-color: var(--jp-brand-color2);
   background-image: linear-gradient(
@@ -50,7 +115,7 @@
   height: 100%;
   font-size: 12px;
   line-height: 14px;
-  color: #ffffff;
+  color: #fff;
   text-align: center;
   animation: jp-Statusbar-ExecutionTime-progress-bar 2s linear infinite;
 }
@@ -67,6 +132,7 @@
   0% {
     background-position: 0 0;
   }
+
   100% {
     background-position: 40px 40px;
   }
diff --git a/packages/statusbar/style/index.css b/packages/statusbar/style/index.css
index 74470e295cca..f2a875036f3f 100644
--- a/packages/statusbar/style/index.css
+++ b/packages/statusbar/style/index.css
@@ -6,7 +6,4 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
-@import url('~@jupyterlab/codeeditor/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/statusbar/style/index.js b/packages/statusbar/style/index.js
index 0867489da1b3..d7ce681a90b2 100644
--- a/packages/statusbar/style/index.js
+++ b/packages/statusbar/style/index.js
@@ -6,7 +6,5 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
-import '@jupyterlab/codeeditor/style/index.js';
 
 import './base.css';
diff --git a/packages/statusbar/test/statusbar.spec.ts b/packages/statusbar/test/statusbar.spec.ts
index 5356c2607a05..b44c53768cb4 100644
--- a/packages/statusbar/test/statusbar.spec.ts
+++ b/packages/statusbar/test/statusbar.spec.ts
@@ -41,7 +41,7 @@ describe('@jupyterlab/statusbar', () => {
         statusBar.registerStatusItem('item', { item: item1 });
         expect(
           statusBar.registerStatusItem.bind(statusBar, 'item', { item: item2 })
-        ).toThrowError();
+        ).toThrow();
       });
 
       it('should put higher rank left items closer to the middle', () => {
diff --git a/packages/statusbar/tsconfig.json b/packages/statusbar/tsconfig.json
index ebf71d5042c8..1b9e4bfd7f12 100644
--- a/packages/statusbar/tsconfig.json
+++ b/packages/statusbar/tsconfig.json
@@ -2,24 +2,10 @@
   "extends": "../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
-    "rootDir": "src",
-    "lib": ["DOM", "ES2018"],
-    "types": ["resize-observer-browser"]
+    "rootDir": "src"
   },
   "include": ["src/**/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
     {
       "path": "../ui-components"
     }
diff --git a/packages/statusbar/tsconfig.test.json b/packages/statusbar/tsconfig.test.json
index 8b62212e97dd..db1fe391e837 100644
--- a/packages/statusbar/tsconfig.test.json
+++ b/packages/statusbar/tsconfig.test.json
@@ -2,18 +2,6 @@
   "extends": "../../tsconfigbase.test",
   "include": ["src/*", "test/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
     {
       "path": "../ui-components"
     },
@@ -21,22 +9,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../codeeditor"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/terminal-extension/package.json b/packages/terminal-extension/package.json
index 5bc354245038..cdb3281d466d 100644
--- a/packages/terminal-extension/package.json
+++ b/packages/terminal-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/terminal-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Terminal Emulator Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,24 +38,23 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/launcher": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/running": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/terminal": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/launcher": "^4.0.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/running": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/terminal": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
-    "@types/webpack-env": "^1.14.1",
+    "@types/webpack-env": "^1.18.0",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/terminal-extension/src/index.ts b/packages/terminal-extension/src/index.ts
index 961556878192..34c932c17913 100644
--- a/packages/terminal-extension/src/index.ts
+++ b/packages/terminal-extension/src/index.ts
@@ -18,22 +18,23 @@ import {
   WidgetTracker
 } from '@jupyterlab/apputils';
 import { ILauncher } from '@jupyterlab/launcher';
-import { IFileMenu, IMainMenu } from '@jupyterlab/mainmenu';
+import { IMainMenu } from '@jupyterlab/mainmenu';
 import { IRunningSessionManagers, IRunningSessions } from '@jupyterlab/running';
 import { Terminal, TerminalAPI } from '@jupyterlab/services';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { ITerminal, ITerminalTracker } from '@jupyterlab/terminal';
-// Name-only import so as to not trigger inclusion in main bundle
-import * as WidgetModuleType from '@jupyterlab/terminal/lib/widget';
+import {
+  ITerminal,
+  ITerminalTracker,
+  Terminal as XTerm
+} from '@jupyterlab/terminal';
 import { ITranslator } from '@jupyterlab/translation';
-import { toArray } from '@lumino/algorithm';
 import {
   copyIcon,
   pasteIcon,
   refreshIcon,
   terminalIcon
 } from '@jupyterlab/ui-components';
-import { Menu } from '@lumino/widgets';
+import { Menu, Widget } from '@lumino/widgets';
 
 /**
  * The command IDs used by the terminal plugin.
@@ -54,6 +55,8 @@ namespace CommandIDs {
   export const paste = 'terminal:paste';
 
   export const setTheme = 'terminal:set-theme';
+
+  export const shutdown = 'terminal:shut-down';
 }
 
 /**
@@ -62,6 +65,7 @@ namespace CommandIDs {
 const plugin: JupyterFrontEndPlugin<ITerminalTracker> = {
   activate,
   id: '@jupyterlab/terminal-extension:plugin',
+  description: 'Adds terminal and provides its tracker.',
   provides: ITerminalTracker,
   requires: [ISettingRegistry, ITranslator],
   optional: [
@@ -224,13 +228,9 @@ function activate(
 
     // Add terminal close-and-shutdown to the file menu.
     mainMenu.fileMenu.closeAndCleaners.add({
-      tracker,
-      closeAndCleanupLabel: (n: number) => trans.__('Shutdown Terminal'),
-      closeAndCleanup: (current: MainAreaWidget<ITerminal.ITerminal>) => {
-        // The widget is automatically disposed upon session shutdown.
-        return current.content.session.shutdown();
-      }
-    } as IFileMenu.ICloseAndCleaner<MainAreaWidget<ITerminal.ITerminal>>);
+      id: CommandIDs.shutdown,
+      isEnabled: (w: Widget) => tracker.currentWidget !== null && tracker.has(w)
+    });
   }
 
   if (palette) {
@@ -292,20 +292,6 @@ function addRunningSessionManager(
   const trans = translator.load('jupyterlab');
   const manager = app.serviceManager.terminals;
 
-  managers.add({
-    name: trans.__('Terminals'),
-    running: () =>
-      toArray(manager.running()).map(model => new RunningTerminal(model)),
-    shutdownAll: () => manager.shutdownAll(),
-    refreshRunning: () => manager.refreshRunning(),
-    runningChanged: manager.runningChanged,
-    shutdownLabel: trans.__('Shut Down'),
-    shutdownAllLabel: trans.__('Shut Down All'),
-    shutdownAllConfirmationText: trans.__(
-      'Are you sure you want to permanently shut down all running terminals?'
-    )
-  });
-
   class RunningTerminal implements IRunningSessions.IRunningItem {
     constructor(model: Terminal.IModel) {
       this._model = model;
@@ -325,12 +311,26 @@ function addRunningSessionManager(
 
     private _model: Terminal.IModel;
   }
+
+  managers.add({
+    name: trans.__('Terminals'),
+    running: () =>
+      Array.from(manager.running()).map(model => new RunningTerminal(model)),
+    shutdownAll: () => manager.shutdownAll(),
+    refreshRunning: () => manager.refreshRunning(),
+    runningChanged: manager.runningChanged,
+    shutdownLabel: trans.__('Shut Down'),
+    shutdownAllLabel: trans.__('Shut Down All'),
+    shutdownAllConfirmationText: trans.__(
+      'Are you sure you want to permanently shut down all running terminals?'
+    )
+  });
 }
 
 /**
  * Add the commands for the terminal.
  */
-export function addCommands(
+function addCommands(
   app: JupyterFrontEnd,
   tracker: WidgetTracker<MainAreaWidget<ITerminal.ITerminal>>,
   settingRegistry: ISettingRegistry,
@@ -351,17 +351,11 @@ export function addCommands(
     caption: trans.__('Start a new terminal session'),
     icon: args => (args['isPalette'] ? undefined : terminalIcon),
     execute: async args => {
-      // wait for the widget to lazy load
-      let Terminal: typeof WidgetModuleType.Terminal;
-      try {
-        Terminal = (await Private.ensureWidget()).Terminal;
-      } catch (err) {
-        Private.showErrorMessage(err);
-        return;
-      }
-
       const name = args['name'] as string;
       const cwd = args['cwd'] as string;
+      const localPath = cwd
+        ? serviceManager.contents.localPath(cwd)
+        : undefined;
 
       let session;
       if (name) {
@@ -373,21 +367,24 @@ export function addCommands(
         } else {
           // we are restoring a terminal widget but the corresponding terminal was closed
           // let's start a new terminal with the original name
-          session = await serviceManager.terminals.startNew({ name, cwd });
+          session = await serviceManager.terminals.startNew({
+            name,
+            cwd: localPath
+          });
         }
       } else {
         // we are creating a new terminal widget with a new terminal
         // let the server choose the terminal name
-        session = await serviceManager.terminals.startNew({ cwd });
+        session = await serviceManager.terminals.startNew({ cwd: localPath });
       }
 
-      const term = new Terminal(session, options, translator);
+      const term = new XTerm(session, options, translator);
 
       term.title.icon = terminalIcon;
       term.title.label = '...';
 
-      const main = new MainAreaWidget({ content: term });
-      app.shell.add(main);
+      const main = new MainAreaWidget({ content: term, reveal: term.ready });
+      app.shell.add(main, 'main', { type: 'Terminal' });
       void tracker.add(main);
       app.shell.activateById(main.id);
       return main;
@@ -395,6 +392,7 @@ export function addCommands(
   });
 
   commands.addCommand(CommandIDs.open, {
+    label: trans.__('Open a terminal by its `name`.'),
     execute: args => {
       const name = args['name'] as string;
       // Check for a running terminal with the given name.
@@ -447,7 +445,7 @@ export function addCommands(
         return;
       }
 
-      const text = widget.getSelection!();
+      const text = widget.getSelection();
 
       if (text) {
         Clipboard.copyToSystem(text);
@@ -464,12 +462,8 @@ export function addCommands(
         return false;
       }
 
-      if (!widget.hasSelection) {
-        return false;
-      }
-
       // Enable command if there is a text selection in the terminal
-      return widget.hasSelection!();
+      return widget.hasSelection();
     },
     icon: copyIcon.bindprops({ stylesheet: 'menuItem' }),
     label: trans.__('Copy')
@@ -492,24 +486,26 @@ export function addCommands(
 
       if (clipboardData) {
         // Paste data to the terminal
-        widget.paste!(clipboardData);
+        widget.paste(clipboardData);
       }
     },
-    isEnabled: () => {
-      const widget = tracker.currentWidget?.content;
-
-      if (!widget) {
-        return false;
-      }
+    isEnabled: () => Boolean(isEnabled() && tracker.currentWidget?.content),
+    icon: pasteIcon.bindprops({ stylesheet: 'menuItem' }),
+    label: trans.__('Paste')
+  });
 
-      if (!widget.paste) {
-        return false;
+  commands.addCommand(CommandIDs.shutdown, {
+    label: trans.__('Shutdown Terminal'),
+    execute: () => {
+      const current = tracker.currentWidget;
+      if (!current) {
+        return;
       }
 
-      return isEnabled();
+      // The widget is automatically disposed upon session shutdown.
+      return current.content.session.shutdown();
     },
-    icon: pasteIcon.bindprops({ stylesheet: 'menuItem' }),
-    label: trans.__('Paste')
+    isEnabled
   });
 
   commands.addCommand(CommandIDs.increaseFont, {
@@ -548,6 +544,9 @@ export function addCommands(
 
   commands.addCommand(CommandIDs.setTheme, {
     label: args => {
+      if (args.theme === undefined) {
+        return trans.__('Set terminal theme to the provided `theme`.');
+      }
       const theme = args['theme'] as string;
       const displayName =
         theme in themeDisplayedName
@@ -579,24 +578,6 @@ export function addCommands(
  * A namespace for private data.
  */
 namespace Private {
-  /**
-   * A Promise for the initial load of the terminal widget.
-   */
-  export let widgetReady: Promise<typeof WidgetModuleType>;
-
-  /**
-   * Lazy-load the widget (and xterm library and addons)
-   */
-  export function ensureWidget(): Promise<typeof WidgetModuleType> {
-    if (widgetReady) {
-      return widgetReady;
-    }
-
-    widgetReady = import('@jupyterlab/terminal/lib/widget');
-
-    return widgetReady;
-  }
-
   /**
    *  Utility function for consistent error reporting
    */
diff --git a/packages/terminal/.vscode/launch.json b/packages/terminal/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/terminal/.vscode/launch.json
+++ b/packages/terminal/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/terminal/babel.config.js b/packages/terminal/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/terminal/babel.config.js
+++ b/packages/terminal/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/terminal/jest.config.js b/packages/terminal/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/terminal/jest.config.js
+++ b/packages/terminal/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/terminal/package.json b/packages/terminal/package.json
index 61bc470b0377..61d51d20d530 100644
--- a/packages/terminal/package.json
+++ b/packages/terminal/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/terminal",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Terminal Emulator Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,31 +37,32 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "xterm": "~4.19.0",
-    "xterm-addon-fit": "~0.5.0",
-    "xterm-addon-web-links": "~0.6.0"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/domutils": "^2.0.1",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "xterm": "~5.1.0",
+    "xterm-addon-canvas": "~0.3.0",
+    "xterm-addon-fit": "~0.7.0",
+    "xterm-addon-web-links": "~0.8.0",
+    "xterm-addon-webgl": "~0.14.0"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "canvas": "^2.6.1",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "canvas": "^2.11.2",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/terminal/src/tokens.ts b/packages/terminal/src/tokens.ts
index f639307cdb1e..3205448bb82a 100644
--- a/packages/terminal/src/tokens.ts
+++ b/packages/terminal/src/tokens.ts
@@ -12,14 +12,15 @@ import { Widget } from '@lumino/widgets';
 export interface ITerminalTracker
   extends IWidgetTracker<MainAreaWidget<ITerminal.ITerminal>> {}
 
-/* tslint:disable */
 /**
  * The editor tracker token.
  */
 export const ITerminalTracker = new Token<ITerminalTracker>(
-  '@jupyterlab/terminal:ITerminalTracker'
+  '@jupyterlab/terminal:ITerminalTracker',
+  `A widget tracker for terminals.
+  Use this if you want to be able to iterate over and interact with terminals
+  created by the application.`
 );
-/* tslint:enable */
 
 /**
  * The namespace for terminals. Separated from the widget so it can be lazy
@@ -50,17 +51,17 @@ export namespace ITerminal {
     /**
      * Check if terminal has any text selected.
      */
-    hasSelection?(): boolean;
+    hasSelection(): boolean;
 
     /**
      * Paste text into terminal.
      */
-    paste?(data: string): void;
+    paste(data: string): void;
 
     /**
      * Get selected text from terminal.
      */
-    getSelection?(): string | null;
+    getSelection(): string | null;
   }
   /**
    * Options for the terminal widget.
@@ -167,6 +168,7 @@ export namespace ITerminal {
     background: string;
     cursor: string;
     cursorAccent: string;
-    selection: string;
+    selectionBackground: string;
+    selectionInactiveBackground: string;
   }
 }
diff --git a/packages/terminal/src/widget.ts b/packages/terminal/src/widget.ts
index 2a86443e4ee2..52e83b6b120a 100644
--- a/packages/terminal/src/widget.ts
+++ b/packages/terminal/src/widget.ts
@@ -7,12 +7,19 @@ import {
   nullTranslator,
   TranslationBundle
 } from '@jupyterlab/translation';
+import { PromiseDelegate } from '@lumino/coreutils';
 import { Platform } from '@lumino/domutils';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
-import { Terminal as Xterm } from 'xterm';
-import { FitAddon } from 'xterm-addon-fit';
-import { WebLinksAddon } from 'xterm-addon-web-links';
+import type {
+  ITerminalInitOnlyOptions,
+  ITerminalOptions,
+  Terminal as Xterm
+} from 'xterm';
+import type { CanvasAddon } from 'xterm-addon-canvas';
+import type { FitAddon } from 'xterm-addon-fit';
+import type { WebLinksAddon } from 'xterm-addon-web-links';
+import type { WebglAddon } from 'xterm-addon-webgl';
 import { ITerminal } from '.';
 
 /**
@@ -61,66 +68,68 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
 
     this._setThemeAttribute(theme);
 
-    // Create the xterm.
-    this._term = new Xterm(xtermOptions);
-    this._fitAddon = new FitAddon();
-    this._webLinksAddon = new WebLinksAddon();
-    this._term.loadAddon(this._fitAddon);
-    this._term.loadAddon(this._webLinksAddon);
-
-    this._initializeTerm();
-
-    this.id = `jp-Terminal-${Private.id++}`;
-    this.title.label = this._trans.__('Terminal');
-
-    session.messageReceived.connect(this._onMessage, this);
+    // Buffer session message while waiting for the terminal
+    let buffer = '';
+    const bufferMessage = (
+      sender: TerminalNS.ITerminalConnection,
+      msg: TerminalNS.IMessage
+    ): void => {
+      switch (msg.type) {
+        case 'stdout':
+          if (msg.content) {
+            buffer += msg.content[0] as string;
+          }
+          break;
+        default:
+          break;
+      }
+    };
+    session.messageReceived.connect(bufferMessage);
     session.disposed.connect(() => {
       if (this.getOption('closeOnExit')) {
         this.dispose();
       }
     }, this);
 
-    if (session.connectionStatus === 'connected') {
-      this._initialConnection();
-    } else {
-      session.connectionStatusChanged.connect(this._initialConnection, this);
-    }
-  }
-
-  private _setThemeAttribute(theme: string | null | undefined) {
-    if (this.isDisposed) {
-      return;
-    }
-
-    this.node.setAttribute(
-      'data-term-theme',
-      theme ? theme.toLowerCase() : 'inherit'
-    );
-  }
-
-  private _initialConnection() {
-    if (this.isDisposed) {
-      return;
-    }
-
-    if (this.session.connectionStatus !== 'connected') {
-      return;
-    }
-
-    this.title.label = this._trans.__('Terminal %1', this.session.name);
-    this._setSessionSize();
-    if (this._options.initialCommand) {
-      this.session.send({
-        type: 'stdin',
-        content: [this._options.initialCommand + '\r']
+    // Create the xterm.
+    Private.createTerminal(xtermOptions)
+      .then(([term, fitAddon]) => {
+        this._term = term;
+        this._fitAddon = fitAddon;
+        this._initializeTerm();
+
+        this.id = `jp-Terminal-${Private.id++}`;
+        this.title.label = this._trans.__('Terminal');
+        this._isReady = true;
+        this._ready.resolve();
+
+        if (buffer) {
+          this._term.write(buffer);
+        }
+        session.messageReceived.disconnect(bufferMessage);
+        session.messageReceived.connect(this._onMessage, this);
+
+        if (session.connectionStatus === 'connected') {
+          this._initialConnection();
+        } else {
+          session.connectionStatusChanged.connect(
+            this._initialConnection,
+            this
+          );
+        }
+        this.update();
+      })
+      .catch(reason => {
+        console.error('Failed to create a terminal.\n', reason);
+        this._ready.reject(reason);
       });
-    }
+  }
 
-    // Only run this initial connection logic once.
-    this.session.connectionStatusChanged.disconnect(
-      this._initialConnection,
-      this
-    );
+  /**
+   * A promise that is fulfilled when the terminal is ready.
+   */
+  get ready(): Promise<void> {
+    return this._ready.promise;
   }
 
   /**
@@ -154,18 +163,32 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
     this._options[option] = value;
 
     switch (option) {
-      case 'shutdownOnClose': // Do not transmit to XTerm
-      case 'closeOnExit': // Do not transmit to XTerm
+      case 'fontFamily':
+        this._term.options.fontFamily = value as string | undefined;
+        break;
+      case 'fontSize':
+        this._term.options.fontSize = value as number | undefined;
+        break;
+      case 'lineHeight':
+        this._term.options.lineHeight = value as number | undefined;
+        break;
+      case 'screenReaderMode':
+        this._term.options.screenReaderMode = value as boolean | undefined;
+        break;
+      case 'scrollback':
+        this._term.options.scrollback = value as number | undefined;
         break;
       case 'theme':
-        this._term.setOption(
-          'theme',
-          Private.getXTermTheme(value as ITerminal.Theme)
-        );
+        this._term.options.theme = {
+          ...Private.getXTermTheme(value as ITerminal.Theme)
+        };
         this._setThemeAttribute(value as ITerminal.Theme);
         break;
+      case 'macOptionIsMeta':
+        this._term.options.macOptionIsMeta = value as boolean | undefined;
+        break;
       default:
-        this._term.setOption(option, value);
+        // Do not transmit options not listed above to XTerm
         break;
     }
 
@@ -184,7 +207,9 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
         });
       }
     }
-    this._term.dispose();
+    void this.ready.then(() => {
+      this._term.dispose();
+    });
     super.dispose();
   }
 
@@ -195,7 +220,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Failure to reconnect to the session should be caught appropriately
    */
   async refresh(): Promise<void> {
-    if (!this.isDisposed) {
+    if (!this.isDisposed && this._isReady) {
       await this.session.reconnect();
       this._term.clear();
     }
@@ -205,7 +230,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Check if terminal has any text selected.
    */
   hasSelection(): boolean {
-    if (!this.isDisposed) {
+    if (!this.isDisposed && this._isReady) {
       return this._term.hasSelection();
     }
     return false;
@@ -215,7 +240,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Paste text into terminal.
    */
   paste(data: string): void {
-    if (!this.isDisposed) {
+    if (!this.isDisposed && this._isReady) {
       return this._term.paste(data);
     }
   }
@@ -224,7 +249,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Get selected text from terminal.
    */
   getSelection(): string | null {
-    if (!this.isDisposed) {
+    if (!this.isDisposed && this._isReady) {
       return this._term.getSelection();
     }
     return null;
@@ -277,7 +302,7 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * A message handler invoked on an `'update-request'` message.
    */
   protected onUpdateRequest(msg: Message): void {
-    if (!this.isVisible || !this.isAttached) {
+    if (!this.isVisible || !this.isAttached || !this._isReady) {
       return;
     }
 
@@ -305,7 +330,32 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
    * Handle `'activate-request'` messages.
    */
   protected onActivateRequest(msg: Message): void {
-    this._term.focus();
+    this._term?.focus();
+  }
+
+  private _initialConnection() {
+    if (this.isDisposed) {
+      return;
+    }
+
+    if (this.session.connectionStatus !== 'connected') {
+      return;
+    }
+
+    this.title.label = this._trans.__('Terminal %1', this.session.name);
+    this._setSessionSize();
+    if (this._options.initialCommand) {
+      this.session.send({
+        type: 'stdin',
+        content: [this._options.initialCommand + '\r']
+      });
+    }
+
+    // Only run this initial connection logic once.
+    this.session.connectionStatusChanged.disconnect(
+      this._initialConnection,
+      this
+    );
   }
 
   /**
@@ -402,15 +452,27 @@ export class Terminal extends Widget implements ITerminal.ITerminal {
     }
   }
 
-  private readonly _term: Xterm;
-  private readonly _fitAddon: FitAddon;
-  private readonly _webLinksAddon: WebLinksAddon;
-  private _trans: TranslationBundle;
+  private _setThemeAttribute(theme: string | null | undefined) {
+    if (this.isDisposed) {
+      return;
+    }
+
+    this.node.setAttribute(
+      'data-term-theme',
+      theme ? theme.toLowerCase() : 'inherit'
+    );
+  }
+
+  private _fitAddon: FitAddon;
   private _needsResize = true;
-  private _termOpened = false;
   private _offsetWidth = -1;
   private _offsetHeight = -1;
   private _options: ITerminal.IOptions;
+  private _isReady = false;
+  private _ready = new PromiseDelegate<void>();
+  private _term: Xterm;
+  private _termOpened = false;
+  private _trans: TranslationBundle;
 }
 
 /**
@@ -430,7 +492,8 @@ namespace Private {
     background: '#fff',
     cursor: '#616161', // md-grey-700
     cursorAccent: '#F5F5F5', // md-grey-100
-    selection: 'rgba(97, 97, 97, 0.3)' // md-grey-700
+    selectionBackground: 'rgba(97, 97, 97, 0.3)', // md-grey-700
+    selectionInactiveBackground: 'rgba(189, 189, 189, 0.3)' // md-grey-400
   };
 
   /**
@@ -441,7 +504,8 @@ namespace Private {
     background: '#000',
     cursor: '#fff',
     cursorAccent: '#000',
-    selection: 'rgba(255, 255, 255, 0.3)'
+    selectionBackground: 'rgba(255, 255, 255, 0.3)',
+    selectionInactiveBackground: 'rgba(238, 238, 238, 0.3)' // md-grey-200
   };
 
   /**
@@ -460,8 +524,11 @@ namespace Private {
     cursorAccent: getComputedStyle(document.body)
       .getPropertyValue('--jp-ui-inverse-font-color0')
       .trim(),
-    selection: getComputedStyle(document.body)
-      .getPropertyValue('--jp-ui-font-color3')
+    selectionBackground: getComputedStyle(document.body)
+      .getPropertyValue('--jp-layout-color3')
+      .trim(),
+    selectionInactiveBackground: getComputedStyle(document.body)
+      .getPropertyValue('--jp-layout-color2')
       .trim()
   });
 
@@ -479,3 +546,81 @@ namespace Private {
     }
   }
 }
+
+/**
+ * Utility functions for creating a Terminal widget
+ */
+namespace Private {
+  let supportWebGL: boolean = false;
+  let Xterm_: typeof Xterm;
+  let FitAddon_: typeof FitAddon;
+  let WeblinksAddon_: typeof WebLinksAddon;
+  let Renderer_: typeof CanvasAddon | typeof WebglAddon;
+
+  /**
+   * Detect if the browser supports WebGL or not.
+   *
+   * Reference: https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/By_example/Detect_WebGL
+   */
+  function hasWebGLContext(): boolean {
+    // Create canvas element. The canvas is not added to the
+    // document itself, so it is never displayed in the
+    // browser window.
+    const canvas = document.createElement('canvas');
+
+    // Get WebGLRenderingContext from canvas element.
+    const gl =
+      canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
+
+    // Report the result.
+    try {
+      return gl instanceof WebGLRenderingContext;
+    } catch (error) {
+      return false;
+    }
+  }
+
+  function addRenderer(term: Xterm): void {
+    let renderer = new Renderer_();
+    term.loadAddon(renderer);
+    if (supportWebGL) {
+      (renderer as WebglAddon).onContextLoss(event => {
+        console.debug('WebGL context lost - reinitialize Xtermjs renderer.');
+        renderer.dispose();
+        // If the Webgl context is lost, reinitialize the addon
+        addRenderer(term);
+      });
+    }
+  }
+
+  /**
+   * Create a xterm.js terminal asynchronously.
+   */
+  export async function createTerminal(
+    options: ITerminalOptions & ITerminalInitOnlyOptions
+  ): Promise<[Xterm, FitAddon]> {
+    if (!Xterm_) {
+      supportWebGL = hasWebGLContext();
+      const [xterm_, fitAddon_, renderer_, weblinksAddon_] = await Promise.all([
+        import('xterm'),
+        import('xterm-addon-fit'),
+        supportWebGL
+          ? import('xterm-addon-webgl')
+          : import('xterm-addon-canvas'),
+        import('xterm-addon-web-links')
+      ]);
+      Xterm_ = xterm_.Terminal;
+      FitAddon_ = fitAddon_.FitAddon;
+      Renderer_ =
+        (renderer_ as any).WebglAddon ?? (renderer_ as any).CanvasAddon;
+      WeblinksAddon_ = weblinksAddon_.WebLinksAddon;
+    }
+
+    const term = new Xterm_(options);
+    addRenderer(term);
+    const fitAddon = new FitAddon_();
+    term.loadAddon(fitAddon);
+    term.loadAddon(new WeblinksAddon_());
+    return [term, fitAddon];
+  }
+}
diff --git a/packages/terminal/style/index.css b/packages/terminal/style/index.css
index 48173c41f65e..46146501799b 100644
--- a/packages/terminal/style/index.css
+++ b/packages/terminal/style/index.css
@@ -7,5 +7,4 @@
 @import url('~@lumino/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~xterm/css/xterm.css');
-
 @import url('./base.css');
diff --git a/packages/terminal/test/terminal.spec.ts b/packages/terminal/test/terminal.spec.ts
index 93e78f1e31d9..a42a8b3479f1 100644
--- a/packages/terminal/test/terminal.spec.ts
+++ b/packages/terminal/test/terminal.spec.ts
@@ -2,11 +2,7 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { TerminalManager, Terminal as TerminalNS } from '@jupyterlab/services';
-import {
-  framePromise,
-  JupyterServer,
-  testEmission
-} from '@jupyterlab/testutils';
+import { framePromise, JupyterServer, testEmission } from '@jupyterlab/testing';
 import { Message, MessageLoop } from '@lumino/messaging';
 import { Widget } from '@lumino/widgets';
 import { Terminal } from '../src';
@@ -15,7 +11,7 @@ const server = new JupyterServer();
 
 beforeAll(async () => {
   await server.start();
-});
+}, 30000);
 
 afterAll(async () => {
   await server.shutdown();
@@ -70,7 +66,7 @@ describe('terminal/index', () => {
       widget = new LogTerminal(session, { autoFit: false });
       Widget.attach(widget, document.body);
       return framePromise();
-    });
+    }, 30000);
 
     afterEach(() => {
       widget.dispose();
@@ -138,8 +134,8 @@ describe('terminal/index', () => {
     });
 
     describe('#refresh()', () => {
-      it('should refresh the widget', () => {
-        return widget.refresh();
+      it('should refresh the widget', async () => {
+        await expect(widget.refresh()).resolves.not.toThrow();
       });
     });
 
diff --git a/packages/terminal/tsconfig.test.json b/packages/terminal/tsconfig.test.json
index 561d8ca58d84..dac12683a035 100644
--- a/packages/terminal/tsconfig.test.json
+++ b/packages/terminal/tsconfig.test.json
@@ -15,16 +15,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/testing/babel.config.js b/packages/testing/babel.config.js
new file mode 100644
index 000000000000..5f79707bb8bd
--- /dev/null
+++ b/packages/testing/babel.config.js
@@ -0,0 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('./lib/babel-config');
diff --git a/packages/testing/jest.config.js b/packages/testing/jest.config.js
new file mode 100644
index 000000000000..ba98a0ed400e
--- /dev/null
+++ b/packages/testing/jest.config.js
@@ -0,0 +1,7 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('./lib/jest-config');
+module.exports = func(__dirname);
diff --git a/packages/testing/package.json b/packages/testing/package.json
new file mode 100644
index 000000000000..abd4bda0a469
--- /dev/null
+++ b/packages/testing/package.json
@@ -0,0 +1,65 @@
+{
+  "name": "@jupyterlab/testing",
+  "version": "4.0.8",
+  "description": "JupyterLab basic testing utilities.",
+  "homepage": "https://github.com/jupyterlab/jupyterlab",
+  "bugs": {
+    "url": "https://github.com/jupyterlab/jupyterlab/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/jupyterlab/jupyterlab.git"
+  },
+  "license": "BSD-3-Clause",
+  "author": "Project Jupyter",
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "directories": {
+    "lib": "lib/"
+  },
+  "files": [
+    "lib/**/*.{d.ts,js,js.map,json}",
+    "src/**/*.{ts,tsx}"
+  ],
+  "scripts": {
+    "build": "tsc -b",
+    "build:all": "npm run build",
+    "build:test": "tsc --build tsconfig.test.json",
+    "clean": "rimraf lib tsconfig.tsbuildinfo",
+    "test": "jest -i",
+    "test:cov": "jest -i --collect-coverage",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
+    "watch": "tsc -b --watch"
+  },
+  "dependencies": {
+    "@babel/core": "^7.10.2",
+    "@babel/preset-env": "^7.10.2",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/signaling": "^2.1.2",
+    "child_process": "~1.0.2",
+    "deepmerge": "^4.2.2",
+    "fs-extra": "^10.1.0",
+    "identity-obj-proxy": "^3.0.0",
+    "jest": "^29.2.0",
+    "jest-environment-jsdom": "^29.3.0",
+    "jest-junit": "^15.0.0",
+    "node-fetch": "^2.6.0",
+    "simulate-event": "~1.4.0",
+    "ts-jest": "^29.1.0"
+  },
+  "devDependencies": {
+    "@types/jest": "^29.2.0",
+    "@types/node": "^18.11.18",
+    "@types/node-fetch": "^2.6.2",
+    "rimraf": "~3.0.0",
+    "typescript": "~5.0.4"
+  },
+  "peerDependencies": {
+    "typescript": ">=4.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}
diff --git a/packages/testing/src/babel-config.ts b/packages/testing/src/babel-config.ts
new file mode 100644
index 000000000000..77518f05ded2
--- /dev/null
+++ b/packages/testing/src/babel-config.ts
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const babelConfig = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        targets: {
+          node: 'current'
+        }
+      }
+    ]
+  ]
+};
+
+export default babelConfig;
diff --git a/testutils/src/common.ts b/packages/testing/src/common.ts
similarity index 63%
rename from testutils/src/common.ts
rename to packages/testing/src/common.ts
index a39ff9ef6a90..2299c1e4173a 100644
--- a/testutils/src/common.ts
+++ b/packages/testing/src/common.ts
@@ -1,19 +1,17 @@
-import { simulate as simulateEvent } from 'simulate-event';
-
-import { ServiceManager, Session } from '@jupyterlab/services';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-import { SessionContext } from '@jupyterlab/apputils';
+import { simulate as simulateEvent } from 'simulate-event';
 
-import { PromiseDelegate, UUID } from '@lumino/coreutils';
+import { PromiseDelegate } from '@lumino/coreutils';
 
 import { ISignal, Signal } from '@lumino/signaling';
-import {
-  Context,
-  DocumentRegistry,
-  TextModelFactory
-} from '@jupyterlab/docregistry';
 
-import { INotebookModel, NotebookModelFactory } from '@jupyterlab/notebook';
+import { sleep } from '@jupyterlab/coreutils/lib/testutils';
+
+export { sleep } from '@jupyterlab/coreutils/lib/testutils';
 
 // Add a simple polyfill for `PointerEvent` which is not yet supported by jsdom
 // see https://github.com/jsdom/jsdom/pull/2666
@@ -207,133 +205,6 @@ export function framePromise(): Promise<void> {
   return done.promise;
 }
 
-/**
- * Return a promise that resolves in the given milliseconds with the given value.
- */
-export function sleep(milliseconds?: number): Promise<void>;
-export function sleep<T>(milliseconds: number, value: T): Promise<T>;
-export function sleep<T>(
-  milliseconds: number = 0,
-  value?: any
-): Promise<T> | Promise<void> {
-  return new Promise<T>((resolve, reject) => {
-    setTimeout(() => {
-      resolve(value);
-    }, milliseconds);
-  });
-}
-
-/**
- * Create a client session object.
- */
-export async function createSessionContext(
-  options: Partial<SessionContext.IOptions> = {}
-): Promise<SessionContext> {
-  const manager = options.sessionManager ?? Private.getManager().sessions;
-  const specsManager = options.specsManager ?? Private.getManager().kernelspecs;
-
-  await Promise.all([manager.ready, specsManager.ready]);
-  return new SessionContext({
-    sessionManager: manager,
-    specsManager,
-    path: options.path ?? UUID.uuid4(),
-    name: options.name,
-    type: options.type,
-    kernelPreference: options.kernelPreference ?? {
-      shouldStart: true,
-      canStart: true,
-      name: specsManager.specs?.default
-    }
-  });
-}
-
-/**
- * Create a session and return a session connection.
- */
-export async function createSession(
-  options: Session.ISessionOptions
-): Promise<Session.ISessionConnection> {
-  const manager = Private.getManager().sessions;
-  await manager.ready;
-  return manager.startNew(options);
-}
-
-/**
- * Create a context for a file.
- */
-export function createFileContext(
-  path: string = UUID.uuid4() + '.txt',
-  manager: ServiceManager.IManager = Private.getManager()
-): Context<DocumentRegistry.IModel> {
-  const factory = Private.textFactory;
-  return new Context({ manager, factory, path });
-}
-
-export async function createFileContextWithKernel(
-  path: string = UUID.uuid4() + '.txt',
-  manager: ServiceManager.IManager = Private.getManager()
-) {
-  const factory = Private.textFactory;
-  const specsManager = manager.kernelspecs;
-  await specsManager.ready;
-
-  return new Context({
-    manager,
-    factory,
-    path,
-    kernelPreference: {
-      shouldStart: true,
-      canStart: true,
-      name: specsManager.specs?.default
-    }
-  });
-}
-
-/**
- * Create and initialize context for a notebook.
- */
-export async function initNotebookContext(
-  options: {
-    path?: string;
-    manager?: ServiceManager.IManager;
-    startKernel?: boolean;
-  } = {}
-): Promise<Context<INotebookModel>> {
-  const factory = Private.notebookFactory;
-  const manager = options.manager || Private.getManager();
-  const path = options.path || UUID.uuid4() + '.ipynb';
-  console.debug(
-    'Initializing notebook context for',
-    path,
-    'kernel:',
-    options.startKernel
-  );
-
-  const startKernel =
-    options.startKernel === undefined ? false : options.startKernel;
-  await manager.ready;
-
-  const context = new Context({
-    manager,
-    factory,
-    path,
-    kernelPreference: {
-      shouldStart: startKernel,
-      canStart: startKernel,
-      shutdownOnDispose: true,
-      name: manager.kernelspecs.specs?.default
-    }
-  });
-  await context.initialize(true);
-
-  if (startKernel) {
-    await context.sessionContext.initialize();
-    await context.sessionContext.session?.kernel?.info;
-  }
-
-  return context;
-}
-
 /**
  * Wait for a dialog to be attached to an element.
  */
@@ -406,26 +277,3 @@ export async function dismissDialog(
     simulate(node as HTMLElement, 'keydown', { keyCode: 27 });
   }
 }
-
-/**
- * A namespace for private data.
- */
-namespace Private {
-  let manager: ServiceManager;
-
-  export const textFactory = new TextModelFactory();
-
-  export const notebookFactory = new NotebookModelFactory({
-    disableDocumentWideUndoRedo: false
-  });
-
-  /**
-   * Get or create the service manager singleton.
-   */
-  export function getManager(): ServiceManager {
-    if (!manager) {
-      manager = new ServiceManager({ standby: 'never' });
-    }
-    return manager;
-  }
-}
diff --git a/packages/shared-models/src/index.ts b/packages/testing/src/index.ts
similarity index 50%
rename from packages/shared-models/src/index.ts
rename to packages/testing/src/index.ts
index 1966e16c7b6b..8df54eca9ee1 100644
--- a/packages/shared-models/src/index.ts
+++ b/packages/testing/src/index.ts
@@ -4,10 +4,22 @@
 |----------------------------------------------------------------------------*/
 /**
  * @packageDocumentation
- * @module shared-models
+ * @module testing
  */
 
-/**
- * @deprecated This package will be removed in JupyterLab 4. Please use @jupyter/ydoc directly
- */
-export * from '@jupyter/ydoc';
+export {
+  testEmission,
+  expectFailure,
+  signalToPromises,
+  signalToPromise,
+  isFulfilled,
+  framePromise,
+  sleep,
+  waitForDialog,
+  acceptDialog,
+  dangerDialog,
+  dismissDialog,
+  simulate
+} from './common';
+
+export { JupyterServer } from './start_jupyter_server';
diff --git a/packages/testing/src/jest-config.ts b/packages/testing/src/jest-config.ts
new file mode 100644
index 000000000000..e291a3be8bf1
--- /dev/null
+++ b/packages/testing/src/jest-config.ts
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import path from 'path';
+
+const esModules = [
+  '@codemirror',
+  '@jupyter/ydoc',
+  'lib0',
+  'nanoid',
+  'vscode-ws-jsonrpc',
+  'y-protocols',
+  'y-websocket',
+  'yjs'
+].join('|');
+
+module.exports = function (baseDir: string) {
+  return {
+    testEnvironment: 'jsdom',
+    moduleNameMapper: {
+      '\\.(css|less|sass|scss)$': 'identity-obj-proxy',
+      '\\.(gif|ttf|eot)$': '@jupyterlab/testing/lib/jest-file-mock.js'
+    },
+    transform: {
+      '\\.svg$': '@jupyterlab/testing/lib/jest-raw-loader.js',
+      // Extracted from https://github.com/kulshekhar/ts-jest/blob/v29.0.3/presets/index.js
+      '^.+\\.tsx?$': [
+        'ts-jest/legacy',
+        {
+          tsconfig: `./tsconfig.test.json`
+        }
+      ],
+      '^.+\\.jsx?$': 'babel-jest'
+    },
+    testTimeout: 10000,
+    setupFiles: ['@jupyterlab/testing/lib/jest-shim.js'],
+    testPathIgnorePatterns: ['/lib/', '/node_modules/'],
+    moduleFileExtensions: [
+      'ts',
+      'tsx',
+      'js',
+      'jsx',
+      'json',
+      'node',
+      'mjs',
+      'cjs'
+    ],
+    transformIgnorePatterns: [`/node_modules/(?!${esModules}).+`],
+    reporters: ['default', 'jest-junit', 'github-actions'],
+    coverageReporters: ['json', 'lcov', 'text', 'html'],
+    coverageDirectory: path.join(baseDir, 'coverage'),
+    testRegex: '/test/.*.spec.ts[x]?$'
+  };
+};
diff --git a/packages/testing/src/jest-file-mock.ts b/packages/testing/src/jest-file-mock.ts
new file mode 100644
index 000000000000..85c697465da4
--- /dev/null
+++ b/packages/testing/src/jest-file-mock.ts
@@ -0,0 +1,6 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = 'test-file-stub';
diff --git a/packages/testing/src/jest-raw-loader.ts b/packages/testing/src/jest-raw-loader.ts
new file mode 100644
index 000000000000..0ae1cb24eb3c
--- /dev/null
+++ b/packages/testing/src/jest-raw-loader.ts
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// jest-raw-loader compatibility with Jest version 28.
+// See: https://github.com/keplersj/jest-raw-loader/pull/239
+module.exports = {
+  process: (content: string): { code: string } => {
+    return {
+      code: 'module.exports = ' + JSON.stringify(content)
+    };
+  }
+};
diff --git a/testutils/src/jest-shim.ts b/packages/testing/src/jest-shim.ts
similarity index 63%
rename from testutils/src/jest-shim.ts
rename to packages/testing/src/jest-shim.ts
index a933cbe96875..1c9cbdc8ae53 100644
--- a/testutils/src/jest-shim.ts
+++ b/packages/testing/src/jest-shim.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 // Shims originally adapted from https://github.com/nteract/nteract/blob/47f8b038ff129543e42c39395129efc433eb4e90/scripts/test-shim.js
 /* global globalThis */
 
@@ -10,15 +15,28 @@ if (
   globalThis.TextEncoder = util.TextEncoder;
 }
 
-const fetchMod = ((window as any).fetch = require('node-fetch')); // tslint:disable-line
+/* global globalThis */
+
+globalThis.DragEvent = class DragEvent {} as any;
+
+if (
+  typeof globalThis.TextDecoder === 'undefined' ||
+  typeof globalThis.TextEncoder === 'undefined'
+) {
+  const util = require('util');
+  globalThis.TextDecoder = util.TextDecoder;
+  globalThis.TextEncoder = util.TextEncoder;
+}
+
+const fetchMod = ((window as any).fetch = require('node-fetch'));
 (window as any).Request = fetchMod.Request;
 (window as any).Headers = fetchMod.Headers;
 (window as any).Response = fetchMod.Response;
 
-(global as any).Image = (window as any).Image;
-(global as any).Range = function Range() {
+globalThis.Image = (window as any).Image;
+globalThis.Range = function Range() {
   /* no-op */
-};
+} as any;
 
 // HACK: Polyfill that allows CodeMirror to render in a JSDOM env.
 const createContextualFragment = (html: string) => {
@@ -27,8 +45,8 @@ const createContextualFragment = (html: string) => {
   return div.children[0]; // so hokey it's not even funny
 };
 
-(global as any).Range.prototype.createContextualFragment = (html: string) =>
-  createContextualFragment(html);
+globalThis.Range.prototype.createContextualFragment = (html: string) =>
+  createContextualFragment(html) as any;
 
 (window as any).document.createRange = function createRange() {
   return {
@@ -39,7 +57,7 @@ const createContextualFragment = (html: string) => {
       /* no-op */
     },
     getBoundingClientRect: () => ({ right: 0 }),
-    getClientRects: (): ClientRect[] => [],
+    getClientRects: (): DOMRect[] => [],
     createContextualFragment
   };
 };
@@ -106,3 +124,24 @@ process.on('unhandledRejection', (error, promise) => {
   }
   promise.catch(err => console.error('promise rejected', err));
 });
+
+if ((window as any).requestIdleCallback === undefined) {
+  // On Safari, requestIdleCallback is not available, so we use replacement functions for `idleCallbacks`
+  // See: https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API#falling_back_to_settimeout
+  // eslint-disable-next-line @typescript-eslint/ban-types
+  (window as any).requestIdleCallback = function (handler: Function) {
+    let startTime = Date.now();
+    return setTimeout(function () {
+      handler({
+        didTimeout: false,
+        timeRemaining: function () {
+          return Math.max(0, 50.0 - (Date.now() - startTime));
+        }
+      });
+    }, 1);
+  };
+
+  (window as any).cancelIdleCallback = function (id: number) {
+    clearTimeout(id);
+  };
+}
diff --git a/testutils/src/start_jupyter_server.ts b/packages/testing/src/start_jupyter_server.ts
similarity index 97%
rename from testutils/src/start_jupyter_server.ts
rename to packages/testing/src/start_jupyter_server.ts
index 5a6f8b21ba05..908d74303b28 100644
--- a/testutils/src/start_jupyter_server.ts
+++ b/packages/testing/src/start_jupyter_server.ts
@@ -1,3 +1,9 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/* eslint-disable camelcase */
 // Copyright (c) Jupyter Development Team.
 
 import { ChildProcess, spawn } from 'child_process';
@@ -24,7 +30,7 @@ import { sleep } from './common';
  *
  * beforeAll(async () => {
  *   await server.start();
- * });
+ * }, 30000);
  *
  * afterAll(async () => {
  *  await server.shutdown();
@@ -160,6 +166,7 @@ namespace Private {
   /**
    * Install a spec in the data directory.
    */
+  // eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
   export function installSpec(dataDir: string, name: string, spec: any): void {
     const specDir = path.join(dataDir, 'kernels', name);
     fs.mkdirSync(specDir, { recursive: true });
diff --git a/testutils/test/start_jupyter_server.spec.ts b/packages/testing/test/start_jupyter_server.spec.ts
similarity index 85%
rename from testutils/test/start_jupyter_server.spec.ts
rename to packages/testing/test/start_jupyter_server.spec.ts
index d2214cc145bd..49ac88dc56a8 100644
--- a/testutils/test/start_jupyter_server.spec.ts
+++ b/packages/testing/test/start_jupyter_server.spec.ts
@@ -3,25 +3,26 @@
 
 const fetch = require('node-fetch');
 
-import { JupyterServer } from '../src';
 import { PageConfig, URLExt } from '@jupyterlab/coreutils';
+import { JupyterServer } from '@jupyterlab/testing';
 
 describe('JupyterServer', () => {
   it('should start the server', async () => {
-    jest.setTimeout(20000);
     const server = new JupyterServer();
     const url = await server.start();
     await fetch(URLExt.join(url, 'api'));
-    await server.shutdown();
-  });
+    await expect(server.shutdown()).resolves.not.toThrow();
+  }, 30000);
 
   it('should accept options', async () => {
-    jest.setTimeout(20000);
     const pageConfig = { foo: 'bar', fizz: 'buzz' };
     const configData = {
+      // eslint-disable-next-line camelcase
       FakeTrait: { fake_prop: 1 },
+      // eslint-disable-next-line camelcase
       OtherTrait: { other_prop: 'hello' },
       KernelManager: {
+        // eslint-disable-next-line camelcase
         shutdown_wait_time: 1.11
       }
     };
@@ -46,5 +47,5 @@ describe('JupyterServer', () => {
     expect(PageConfig.getOption('__configData')).toContain('1.11');
     expect(PageConfig.getOption('__kernelSpec_foo')).toContain('Test Python');
     await expect(server.shutdown()).resolves.not.toThrow();
-  });
+  }, 30000);
 });
diff --git a/packages/shared-models/tsconfig.json b/packages/testing/tsconfig.json
similarity index 59%
rename from packages/shared-models/tsconfig.json
rename to packages/testing/tsconfig.json
index a26281b11a8f..2148e288c01e 100644
--- a/packages/shared-models/tsconfig.json
+++ b/packages/testing/tsconfig.json
@@ -2,12 +2,14 @@
   "extends": "../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
-    "rootDir": "src"
+    "rootDir": "src",
+    "module": "commonjs",
+    "types": ["node"]
   },
   "include": ["src/*"],
   "references": [
     {
-      "path": "../nbformat"
+      "path": "../coreutils"
     }
   ]
 }
diff --git a/packages/testing/tsconfig.test.json b/packages/testing/tsconfig.test.json
new file mode 100644
index 000000000000..576dab4f5622
--- /dev/null
+++ b/packages/testing/tsconfig.test.json
@@ -0,0 +1,12 @@
+{
+  "extends": "../../tsconfigbase.test",
+  "include": ["src/*", "test/*"],
+  "references": [
+    {
+      "path": "../coreutils"
+    },
+    {
+      "path": "."
+    }
+  ]
+}
diff --git a/packages/theme-dark-extension/package.json b/packages/theme-dark-extension/package.json
index f1773b4339d1..9912cde855d5 100644
--- a/packages/theme-dark-extension/package.json
+++ b/packages/theme-dark-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/theme-dark-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Default Dark Theme",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -31,14 +32,14 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/theme-dark-extension/src/index.ts b/packages/theme-dark-extension/src/index.ts
index 6f20ea8e9a02..20d7effc075c 100644
--- a/packages/theme-dark-extension/src/index.ts
+++ b/packages/theme-dark-extension/src/index.ts
@@ -17,6 +17,7 @@ import { ITranslator } from '@jupyterlab/translation';
  */
 const plugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/theme-dark-extension:plugin',
+  description: 'Adds a dark theme.',
   requires: [IThemeManager, ITranslator],
   activate: (
     app: JupyterFrontEnd,
diff --git a/packages/theme-dark-extension/style/theme.css b/packages/theme-dark-extension/style/theme.css
index 594e597834d9..dece106611b3 100644
--- a/packages/theme-dark-extension/style/theme.css
+++ b/packages/theme-dark-extension/style/theme.css
@@ -17,8 +17,10 @@ pre {
 }
 
 /* fix illegible yellow backround in exception stacktrace */
-:where(.jp-RenderedText[data-mime-type='application/vnd.jupyter.stderr']
-    pre
-    .ansi-yellow-bg) {
+:where(
+    .jp-RenderedText[data-mime-type='application/vnd.jupyter.stderr']
+      pre
+      .ansi-yellow-bg
+  ) {
   color: black;
 }
diff --git a/packages/theme-dark-extension/style/variables.css b/packages/theme-dark-extension/style/variables.css
index b9eeb8eea481..5f06654010dd 100644
--- a/packages/theme-dark-extension/style/variables.css
+++ b/packages/theme-dark-extension/style/variables.css
@@ -55,33 +55,33 @@ all of MD as it is not optimized for dense, information rich UIs.
     0.12
   );
   --jp-elevation-z0: none;
-  --jp-elevation-z1: 0px 2px 1px -1px var(--jp-shadow-umbra-color),
-    0px 1px 1px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 3px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z2: 0px 3px 1px -2px var(--jp-shadow-umbra-color),
-    0px 2px 2px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 5px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z4: 0px 2px 4px -1px var(--jp-shadow-umbra-color),
-    0px 4px 5px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 10px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z6: 0px 3px 5px -1px var(--jp-shadow-umbra-color),
-    0px 6px 10px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 18px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z8: 0px 5px 5px -3px var(--jp-shadow-umbra-color),
-    0px 8px 10px 1px var(--jp-shadow-penumbra-color),
-    0px 3px 14px 2px var(--jp-shadow-ambient-color);
-  --jp-elevation-z12: 0px 7px 8px -4px var(--jp-shadow-umbra-color),
-    0px 12px 17px 2px var(--jp-shadow-penumbra-color),
-    0px 5px 22px 4px var(--jp-shadow-ambient-color);
-  --jp-elevation-z16: 0px 8px 10px -5px var(--jp-shadow-umbra-color),
-    0px 16px 24px 2px var(--jp-shadow-penumbra-color),
-    0px 6px 30px 5px var(--jp-shadow-ambient-color);
-  --jp-elevation-z20: 0px 10px 13px -6px var(--jp-shadow-umbra-color),
-    0px 20px 31px 3px var(--jp-shadow-penumbra-color),
-    0px 8px 38px 7px var(--jp-shadow-ambient-color);
-  --jp-elevation-z24: 0px 11px 15px -7px var(--jp-shadow-umbra-color),
-    0px 24px 38px 3px var(--jp-shadow-penumbra-color),
-    0px 9px 46px 8px var(--jp-shadow-ambient-color);
+  --jp-elevation-z1: 0 2px 1px -1px var(--jp-shadow-umbra-color),
+    0 1px 1px 0 var(--jp-shadow-penumbra-color),
+    0 1px 3px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z2: 0 3px 1px -2px var(--jp-shadow-umbra-color),
+    0 2px 2px 0 var(--jp-shadow-penumbra-color),
+    0 1px 5px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z4: 0 2px 4px -1px var(--jp-shadow-umbra-color),
+    0 4px 5px 0 var(--jp-shadow-penumbra-color),
+    0 1px 10px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z6: 0 3px 5px -1px var(--jp-shadow-umbra-color),
+    0 6px 10px 0 var(--jp-shadow-penumbra-color),
+    0 1px 18px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z8: 0 5px 5px -3px var(--jp-shadow-umbra-color),
+    0 8px 10px 1px var(--jp-shadow-penumbra-color),
+    0 3px 14px 2px var(--jp-shadow-ambient-color);
+  --jp-elevation-z12: 0 7px 8px -4px var(--jp-shadow-umbra-color),
+    0 12px 17px 2px var(--jp-shadow-penumbra-color),
+    0 5px 22px 4px var(--jp-shadow-ambient-color);
+  --jp-elevation-z16: 0 8px 10px -5px var(--jp-shadow-umbra-color),
+    0 16px 24px 2px var(--jp-shadow-penumbra-color),
+    0 6px 30px 5px var(--jp-shadow-ambient-color);
+  --jp-elevation-z20: 0 10px 13px -6px var(--jp-shadow-umbra-color),
+    0 20px 31px 3px var(--jp-shadow-penumbra-color),
+    0 8px 38px 7px var(--jp-shadow-ambient-color);
+  --jp-elevation-z24: 0 11px 15px -7px var(--jp-shadow-umbra-color),
+    0 24px 38px 3px var(--jp-shadow-penumbra-color),
+    0 9px 46px 8px var(--jp-shadow-ambient-color);
 
   /* Borders
    *
@@ -111,9 +111,9 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-ui-font-size1: 13px; /* Base font size */
   --jp-ui-font-size2: 1.2em;
   --jp-ui-font-size3: 1.44em;
-
-  --jp-ui-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica,
-    Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
+  --jp-ui-font-family: system-ui, -apple-system, blinkmacsystemfont, 'Segoe UI',
+    helvetica, arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
+    'Segoe UI Symbol';
 
   /*
    * Use these font colors against the corresponding main layout colors.
@@ -156,7 +156,6 @@ all of MD as it is not optimized for dense, information rich UIs.
 
   /* This gives a magnification of about 125% in presentation mode over normal. */
   --jp-content-presentation-font-size1: 17px;
-
   --jp-content-heading-line-height: 1;
   --jp-content-heading-margin-top: 1.2em;
   --jp-content-heading-margin-bottom: 0.8em;
@@ -167,12 +166,10 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-content-font-color1: rgba(255, 255, 255, 1);
   --jp-content-font-color2: rgba(255, 255, 255, 0.7);
   --jp-content-font-color3: rgba(255, 255, 255, 0.5);
-
   --jp-content-link-color: var(--md-blue-300);
-
-  --jp-content-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI',
-    Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
-    'Segoe UI Symbol';
+  --jp-content-font-family: system-ui, -apple-system, blinkmacsystemfont,
+    'Segoe UI', helvetica, arial, sans-serif, 'Apple Color Emoji',
+    'Segoe UI Emoji', 'Segoe UI Symbol';
 
   /*
    * Code Fonts
@@ -183,7 +180,7 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-code-font-size: 13px;
   --jp-code-line-height: 1.3077; /* 17px for 13px base */
   --jp-code-padding: 5px; /* 5px for 13px base, codemirror highlighting needs integer px value */
-  --jp-code-font-family-default: Menlo, Consolas, 'DejaVu Sans Mono', monospace;
+  --jp-code-font-family-default: menlo, consolas, 'DejaVu Sans Mono', monospace;
   --jp-code-font-family: var(--jp-code-font-family-default);
 
   /* This gives a magnification of about 125% in presentation mode over normal. */
@@ -200,7 +197,7 @@ all of MD as it is not optimized for dense, information rich UIs.
    * theme these would go from light to dark.
    */
 
-  --jp-layout-color0: #111111;
+  --jp-layout-color0: #111;
   --jp-layout-color1: var(--md-grey-900);
   --jp-layout-color2: var(--md-grey-800);
   --jp-layout-color3: var(--md-grey-700);
@@ -225,7 +222,6 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-brand-color2: var(--md-blue-300);
   --jp-brand-color3: var(--md-blue-100);
   --jp-brand-color4: var(--md-blue-50);
-
   --jp-accent-color0: var(--md-green-700);
   --jp-accent-color1: var(--md-green-500);
   --jp-accent-color2: var(--md-green-300);
@@ -237,17 +233,14 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-warn-color1: var(--md-orange-500);
   --jp-warn-color2: var(--md-orange-300);
   --jp-warn-color3: var(--md-orange-100);
-
   --jp-error-color0: var(--md-red-700);
   --jp-error-color1: var(--md-red-500);
   --jp-error-color2: var(--md-red-300);
   --jp-error-color3: var(--md-red-100);
-
   --jp-success-color0: var(--md-green-700);
   --jp-success-color1: var(--md-green-500);
   --jp-success-color2: var(--md-green-300);
   --jp-success-color3: var(--md-green-100);
-
   --jp-info-color0: var(--md-cyan-700);
   --jp-info-color1: var(--md-cyan-500);
   --jp-info-color2: var(--md-cyan-300);
@@ -256,20 +249,17 @@ all of MD as it is not optimized for dense, information rich UIs.
   /* Cell specific styles */
 
   --jp-cell-padding: 5px;
-
   --jp-cell-collapser-width: 8px;
   --jp-cell-collapser-min-height: 20px;
   --jp-cell-collapser-not-active-hover-opacity: 0.6;
-
   --jp-cell-editor-background: var(--jp-layout-color1);
   --jp-cell-editor-border-color: var(--md-grey-700);
   --jp-cell-editor-box-shadow: inset 0 0 2px var(--md-blue-300);
   --jp-cell-editor-active-background: var(--jp-layout-color0);
   --jp-cell-editor-active-border-color: var(--jp-brand-color1);
-
   --jp-cell-prompt-width: 64px;
   --jp-cell-prompt-font-family: var(--jp-code-font-family-default);
-  --jp-cell-prompt-letter-spacing: 0px;
+  --jp-cell-prompt-letter-spacing: 0;
   --jp-cell-prompt-opacity: 1;
   --jp-cell-prompt-not-active-opacity: 1;
   --jp-cell-prompt-not-active-font-color: var(--md-grey-300);
@@ -277,6 +267,7 @@ all of MD as it is not optimized for dense, information rich UIs.
   /* A custom blend of MD grey and blue 600
    * See https://meyerweb.com/eric/tools/color-blend/#546E7A:1E88E5:5:hex */
   --jp-cell-inprompt-font-color: #307fc1;
+
   /* A custom blend of MD grey and orange 600
    * https://meyerweb.com/eric/tools/color-blend/#546E7A:F4511E:5:hex */
   --jp-cell-outprompt-font-color: #bf5b3d;
@@ -317,8 +308,8 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-toolbar-border-color: var(--jp-border-color2);
   --jp-toolbar-micro-height: 8px;
   --jp-toolbar-background: var(--jp-layout-color1);
-  --jp-toolbar-box-shadow: 0px 0px 2px 0px rgba(0, 0, 0, 0.8);
-  --jp-toolbar-header-margin: 4px 4px 0px 4px;
+  --jp-toolbar-box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.8);
+  --jp-toolbar-header-margin: 4px 4px 0 4px;
   --jp-toolbar-active-background: var(--jp-layout-color0);
 
   /* Statusbar specific styles */
@@ -348,15 +339,15 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-mirror-editor-number-color: var(--md-green-400);
   --jp-mirror-editor-def-color: var(--md-blue-600);
   --jp-mirror-editor-variable-color: var(--md-grey-300);
-  --jp-mirror-editor-variable-2-color: var(--md-blue-400);
+  --jp-mirror-editor-variable-2-color: var(--md-blue-500);
   --jp-mirror-editor-variable-3-color: var(--md-green-600);
   --jp-mirror-editor-punctuation-color: var(--md-blue-400);
   --jp-mirror-editor-property-color: var(--md-blue-400);
-  --jp-mirror-editor-operator-color: #aa22ff;
+  --jp-mirror-editor-operator-color: #a2f;
   --jp-mirror-editor-comment-color: #408080;
   --jp-mirror-editor-string-color: #ff7070;
   --jp-mirror-editor-string-2-color: var(--md-purple-300);
-  --jp-mirror-editor-meta-color: #aa22ff;
+  --jp-mirror-editor-meta-color: #a2f;
   --jp-mirror-editor-qualifier-color: #555;
   --jp-mirror-editor-builtin-color: var(--md-green-600);
   --jp-mirror-editor-bracket-color: #997;
@@ -408,7 +399,6 @@ all of MD as it is not optimized for dense, information rich UIs.
 
   --jp-scrollbar-background-color: #3f4244;
   --jp-scrollbar-thumb-color: 88, 96, 97; /* need to specify thumb color as an RGB triplet */
-
   --jp-scrollbar-endpad: 3px; /* the minimum gap between the thumb and the ends of a scrollbar */
 
   /* hacks for setting the thumb shape. These do nothing in Firefox */
@@ -422,6 +412,17 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-icon-contrast-color2: var(--md-pink-600);
   --jp-icon-contrast-color3: var(--md-blue-600);
 
+  /* Button colors */
+  --jp-accept-color-normal: var(--md-blue-700);
+  --jp-accept-color-hover: var(--md-blue-800);
+  --jp-accept-color-active: var(--md-blue-900);
+  --jp-warn-color-normal: var(--md-red-700);
+  --jp-warn-color-hover: var(--md-red-800);
+  --jp-warn-color-active: var(--md-red-900);
+  --jp-reject-color-normal: var(--md-grey-600);
+  --jp-reject-color-hover: var(--md-grey-700);
+  --jp-reject-color-active: var(--md-grey-800);
+
   /* File or activity icons and switch semantic variables */
   --jp-jupyter-icon-color: #f37626;
   --jp-notebook-icon-color: #f37626;
diff --git a/packages/theme-light-extension/package.json b/packages/theme-light-extension/package.json
index 0b3d436ddab2..f078533d26c4 100644
--- a/packages/theme-light-extension/package.json
+++ b/packages/theme-light-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/theme-light-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Default Light Theme",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -31,14 +32,14 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/theme-light-extension/src/index.ts b/packages/theme-light-extension/src/index.ts
index 7b05195b6612..8f404b2e9d41 100644
--- a/packages/theme-light-extension/src/index.ts
+++ b/packages/theme-light-extension/src/index.ts
@@ -17,6 +17,7 @@ import { ITranslator } from '@jupyterlab/translation';
  */
 const plugin: JupyterFrontEndPlugin<void> = {
   id: '@jupyterlab/theme-light-extension:plugin',
+  description: 'Adds a light theme.',
   requires: [IThemeManager, ITranslator],
   activate: (
     app: JupyterFrontEnd,
diff --git a/packages/theme-light-extension/style/urls.css b/packages/theme-light-extension/style/urls.css
index b657e4d0df13..df17792b0749 100644
--- a/packages/theme-light-extension/style/urls.css
+++ b/packages/theme-light-extension/style/urls.css
@@ -12,9 +12,14 @@
   /* blocked by lumino interaction */
 
   /*--jp-icon-caret-down: url('icons/md/caretdown.svg');*/
+
   /*--jp-icon-caret-right: url('icons/md/caretright.svg');*/
+
   /*--jp-icon-caret-up: url('icons/md/caretup.svg');*/
+
   /*--jp-icon-caret-left: url('icons/md/caretleft.svg');*/
+
   /*--jp-icon-search: url('icons/md/search.svg');*/
+
   /*--jp-icon-search-white: url('icons/md/search-white.svg');*/
 }
diff --git a/packages/theme-light-extension/style/variables.css b/packages/theme-light-extension/style/variables.css
index b3fc9b79f5ad..b3ae305d6c9f 100644
--- a/packages/theme-light-extension/style/variables.css
+++ b/packages/theme-light-extension/style/variables.css
@@ -53,33 +53,33 @@ all of MD as it is not optimized for dense, information rich UIs.
     0.12
   );
   --jp-elevation-z0: none;
-  --jp-elevation-z1: 0px 2px 1px -1px var(--jp-shadow-umbra-color),
-    0px 1px 1px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 3px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z2: 0px 3px 1px -2px var(--jp-shadow-umbra-color),
-    0px 2px 2px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 5px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z4: 0px 2px 4px -1px var(--jp-shadow-umbra-color),
-    0px 4px 5px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 10px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z6: 0px 3px 5px -1px var(--jp-shadow-umbra-color),
-    0px 6px 10px 0px var(--jp-shadow-penumbra-color),
-    0px 1px 18px 0px var(--jp-shadow-ambient-color);
-  --jp-elevation-z8: 0px 5px 5px -3px var(--jp-shadow-umbra-color),
-    0px 8px 10px 1px var(--jp-shadow-penumbra-color),
-    0px 3px 14px 2px var(--jp-shadow-ambient-color);
-  --jp-elevation-z12: 0px 7px 8px -4px var(--jp-shadow-umbra-color),
-    0px 12px 17px 2px var(--jp-shadow-penumbra-color),
-    0px 5px 22px 4px var(--jp-shadow-ambient-color);
-  --jp-elevation-z16: 0px 8px 10px -5px var(--jp-shadow-umbra-color),
-    0px 16px 24px 2px var(--jp-shadow-penumbra-color),
-    0px 6px 30px 5px var(--jp-shadow-ambient-color);
-  --jp-elevation-z20: 0px 10px 13px -6px var(--jp-shadow-umbra-color),
-    0px 20px 31px 3px var(--jp-shadow-penumbra-color),
-    0px 8px 38px 7px var(--jp-shadow-ambient-color);
-  --jp-elevation-z24: 0px 11px 15px -7px var(--jp-shadow-umbra-color),
-    0px 24px 38px 3px var(--jp-shadow-penumbra-color),
-    0px 9px 46px 8px var(--jp-shadow-ambient-color);
+  --jp-elevation-z1: 0 2px 1px -1px var(--jp-shadow-umbra-color),
+    0 1px 1px 0 var(--jp-shadow-penumbra-color),
+    0 1px 3px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z2: 0 3px 1px -2px var(--jp-shadow-umbra-color),
+    0 2px 2px 0 var(--jp-shadow-penumbra-color),
+    0 1px 5px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z4: 0 2px 4px -1px var(--jp-shadow-umbra-color),
+    0 4px 5px 0 var(--jp-shadow-penumbra-color),
+    0 1px 10px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z6: 0 3px 5px -1px var(--jp-shadow-umbra-color),
+    0 6px 10px 0 var(--jp-shadow-penumbra-color),
+    0 1px 18px 0 var(--jp-shadow-ambient-color);
+  --jp-elevation-z8: 0 5px 5px -3px var(--jp-shadow-umbra-color),
+    0 8px 10px 1px var(--jp-shadow-penumbra-color),
+    0 3px 14px 2px var(--jp-shadow-ambient-color);
+  --jp-elevation-z12: 0 7px 8px -4px var(--jp-shadow-umbra-color),
+    0 12px 17px 2px var(--jp-shadow-penumbra-color),
+    0 5px 22px 4px var(--jp-shadow-ambient-color);
+  --jp-elevation-z16: 0 8px 10px -5px var(--jp-shadow-umbra-color),
+    0 16px 24px 2px var(--jp-shadow-penumbra-color),
+    0 6px 30px 5px var(--jp-shadow-ambient-color);
+  --jp-elevation-z20: 0 10px 13px -6px var(--jp-shadow-umbra-color),
+    0 20px 31px 3px var(--jp-shadow-penumbra-color),
+    0 8px 38px 7px var(--jp-shadow-ambient-color);
+  --jp-elevation-z24: 0 11px 15px -7px var(--jp-shadow-umbra-color),
+    0 24px 38px 3px var(--jp-shadow-penumbra-color),
+    0 9px 46px 8px var(--jp-shadow-ambient-color);
 
   /* Borders
    *
@@ -109,9 +109,9 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-ui-font-size1: 13px; /* Base font size */
   --jp-ui-font-size2: 1.2em;
   --jp-ui-font-size3: 1.44em;
-
-  --jp-ui-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica,
-    Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
+  --jp-ui-font-family: system-ui, -apple-system, blinkmacsystemfont, 'Segoe UI',
+    helvetica, arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
+    'Segoe UI Symbol';
 
   /*
    * Use these font colors against the corresponding main layout colors.
@@ -154,7 +154,6 @@ all of MD as it is not optimized for dense, information rich UIs.
 
   /* This gives a magnification of about 125% in presentation mode over normal. */
   --jp-content-presentation-font-size1: 17px;
-
   --jp-content-heading-line-height: 1;
   --jp-content-heading-margin-top: 1.2em;
   --jp-content-heading-margin-bottom: 0.8em;
@@ -165,12 +164,10 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-content-font-color1: rgba(0, 0, 0, 0.87);
   --jp-content-font-color2: rgba(0, 0, 0, 0.54);
   --jp-content-font-color3: rgba(0, 0, 0, 0.38);
-
-  --jp-content-link-color: var(--md-blue-700);
-
-  --jp-content-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI',
-    Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji',
-    'Segoe UI Symbol';
+  --jp-content-link-color: var(--md-blue-900);
+  --jp-content-font-family: system-ui, -apple-system, blinkmacsystemfont,
+    'Segoe UI', helvetica, arial, sans-serif, 'Apple Color Emoji',
+    'Segoe UI Emoji', 'Segoe UI Symbol';
 
   /*
    * Code Fonts
@@ -181,7 +178,7 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-code-font-size: 13px;
   --jp-code-line-height: 1.3077; /* 17px for 13px base */
   --jp-code-padding: 5px; /* 5px for 13px base, codemirror highlighting needs integer px value */
-  --jp-code-font-family-default: Menlo, Consolas, 'DejaVu Sans Mono', monospace;
+  --jp-code-font-family-default: menlo, consolas, 'DejaVu Sans Mono', monospace;
   --jp-code-font-family: var(--jp-code-font-family-default);
 
   /* This gives a magnification of about 125% in presentation mode over normal. */
@@ -210,7 +207,7 @@ all of MD as it is not optimized for dense, information rich UIs.
    * theme these would go from dark to light.
    */
 
-  --jp-inverse-layout-color0: #111111;
+  --jp-inverse-layout-color0: #111;
   --jp-inverse-layout-color1: var(--md-grey-900);
   --jp-inverse-layout-color2: var(--md-grey-800);
   --jp-inverse-layout-color3: var(--md-grey-700);
@@ -223,7 +220,6 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-brand-color2: var(--md-blue-300);
   --jp-brand-color3: var(--md-blue-100);
   --jp-brand-color4: var(--md-blue-50);
-
   --jp-accent-color0: var(--md-green-900);
   --jp-accent-color1: var(--md-green-700);
   --jp-accent-color2: var(--md-green-300);
@@ -235,17 +231,14 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-warn-color1: var(--md-orange-700);
   --jp-warn-color2: var(--md-orange-300);
   --jp-warn-color3: var(--md-orange-100);
-
   --jp-error-color0: var(--md-red-900);
   --jp-error-color1: var(--md-red-700);
   --jp-error-color2: var(--md-red-300);
   --jp-error-color3: var(--md-red-100);
-
   --jp-success-color0: var(--md-green-900);
   --jp-success-color1: var(--md-green-700);
   --jp-success-color2: var(--md-green-300);
   --jp-success-color3: var(--md-green-100);
-
   --jp-info-color0: var(--md-cyan-900);
   --jp-info-color1: var(--md-cyan-700);
   --jp-info-color2: var(--md-cyan-300);
@@ -254,26 +247,25 @@ all of MD as it is not optimized for dense, information rich UIs.
   /* Cell specific styles */
 
   --jp-cell-padding: 5px;
-
   --jp-cell-collapser-width: 8px;
   --jp-cell-collapser-min-height: 20px;
   --jp-cell-collapser-not-active-hover-opacity: 0.6;
-
   --jp-cell-editor-background: var(--md-grey-100);
   --jp-cell-editor-border-color: var(--md-grey-300);
   --jp-cell-editor-box-shadow: inset 0 0 2px var(--md-blue-300);
   --jp-cell-editor-active-background: var(--jp-layout-color0);
   --jp-cell-editor-active-border-color: var(--jp-brand-color1);
-
   --jp-cell-prompt-width: 64px;
   --jp-cell-prompt-font-family: var(--jp-code-font-family-default);
-  --jp-cell-prompt-letter-spacing: 0px;
+  --jp-cell-prompt-letter-spacing: 0;
   --jp-cell-prompt-opacity: 1;
   --jp-cell-prompt-not-active-opacity: 0.5;
   --jp-cell-prompt-not-active-font-color: var(--md-grey-700);
+
   /* A custom blend of MD grey and blue 600
    * See https://meyerweb.com/eric/tools/color-blend/#546E7A:1E88E5:5:hex */
   --jp-cell-inprompt-font-color: #307fc1;
+
   /* A custom blend of MD grey and orange 600
    * https://meyerweb.com/eric/tools/color-blend/#546E7A:F4511E:5:hex */
   --jp-cell-outprompt-font-color: #bf5b3d;
@@ -314,8 +306,8 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-toolbar-border-color: var(--jp-border-color1);
   --jp-toolbar-micro-height: 8px;
   --jp-toolbar-background: var(--jp-layout-color1);
-  --jp-toolbar-box-shadow: 0px 0px 2px 0px rgba(0, 0, 0, 0.24);
-  --jp-toolbar-header-margin: 4px 4px 0px 4px;
+  --jp-toolbar-box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.24);
+  --jp-toolbar-header-margin: 4px 4px 0 4px;
   --jp-toolbar-active-background: var(--md-grey-300);
 
   /* Statusbar specific styles */
@@ -345,15 +337,15 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-mirror-editor-number-color: #080;
   --jp-mirror-editor-def-color: #00f;
   --jp-mirror-editor-variable-color: var(--md-grey-900);
-  --jp-mirror-editor-variable-2-color: #05a;
+  --jp-mirror-editor-variable-2-color: rgb(0, 54, 109);
   --jp-mirror-editor-variable-3-color: #085;
   --jp-mirror-editor-punctuation-color: #05a;
   --jp-mirror-editor-property-color: #05a;
-  --jp-mirror-editor-operator-color: #aa22ff;
+  --jp-mirror-editor-operator-color: #a2f;
   --jp-mirror-editor-comment-color: #408080;
   --jp-mirror-editor-string-color: #ba2121;
   --jp-mirror-editor-string-2-color: #708;
-  --jp-mirror-editor-meta-color: #aa22ff;
+  --jp-mirror-editor-meta-color: #a2f;
   --jp-mirror-editor-qualifier-color: #555;
   --jp-mirror-editor-builtin-color: #008000;
   --jp-mirror-editor-bracket-color: #997;
@@ -405,6 +397,17 @@ all of MD as it is not optimized for dense, information rich UIs.
   --jp-icon-contrast-color2: var(--md-pink-600);
   --jp-icon-contrast-color3: var(--md-blue-600);
 
+  /* Button colors */
+  --jp-accept-color-normal: var(--md-blue-700);
+  --jp-accept-color-hover: var(--md-blue-800);
+  --jp-accept-color-active: var(--md-blue-900);
+  --jp-warn-color-normal: var(--md-red-700);
+  --jp-warn-color-hover: var(--md-red-800);
+  --jp-warn-color-active: var(--md-red-900);
+  --jp-reject-color-normal: var(--md-grey-600);
+  --jp-reject-color-hover: var(--md-grey-700);
+  --jp-reject-color-active: var(--md-grey-800);
+
   /* File or activity icons and switch semantic variables */
   --jp-jupyter-icon-color: #f37626;
   --jp-notebook-icon-color: #f37626;
diff --git a/packages/toc-extension/package.json b/packages/toc-extension/package.json
index a9a58df4d6b7..c8a49b32fa9e 100644
--- a/packages/toc-extension/package.json
+++ b/packages/toc-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/toc-extension",
-  "version": "5.6.6",
+  "version": "6.0.8",
   "description": "JupyterLab - Table of Contents widget extension",
   "keywords": [
     "jupyter",
@@ -29,9 +29,10 @@
   },
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
+    "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
     "style/index.js",
-    "schema/*.json"
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -40,22 +41,16 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/markdownviewer": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/toc": "^5.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/toc": "^6.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/toc-extension/schema/plugin.json b/packages/toc-extension/schema/plugin.json
deleted file mode 100644
index e249d1313126..000000000000
--- a/packages/toc-extension/schema/plugin.json
+++ /dev/null
@@ -1,36 +0,0 @@
-{
-  "jupyter.lab.setting-icon": "ui-components:toc",
-  "jupyter.lab.setting-icon-label": "Table of Contents",
-  "title": "Table of Contents",
-  "description": "Table of contents settings.",
-  "jupyter.lab.menus": {
-    "context": [
-      {
-        "command": "toc:run-cells",
-        "selector": ".jp-tocItem"
-      }
-    ]
-  },
-  "properties": {
-    "numberingH1": {
-      "title": "Enable h1 numbering",
-      "description": "Whether to number first-level headings",
-      "type": "boolean",
-      "default": true
-    },
-    "includeOutput": {
-      "title": "Include cell output in headings",
-      "description": "Whether to include cell output in headings",
-      "type": "boolean",
-      "default": true
-    },
-    "syncCollapseState": {
-      "type": "boolean",
-      "title": "Synchronize collapse state",
-      "description": "If set to true, when a header is collapsed in the table of contents the corresponding section in the notebook is collapsed as well and vice versa.",
-      "default": false
-    }
-  },
-  "additionalProperties": false,
-  "type": "object"
-}
diff --git a/packages/toc-extension/schema/registry.json b/packages/toc-extension/schema/registry.json
new file mode 100644
index 000000000000..aeb56c458259
--- /dev/null
+++ b/packages/toc-extension/schema/registry.json
@@ -0,0 +1,72 @@
+{
+  "jupyter.lab.setting-icon": "ui-components:toc",
+  "jupyter.lab.setting-icon-label": "Table of Contents",
+  "title": "Table of Contents",
+  "description": "Default table of contents settings.",
+  "jupyter.lab.menus": {
+    "main": [
+      {
+        "id": "jp-mainmenu-view",
+        "items": [
+          {
+            "command": "toc:show-panel",
+            "rank": 4
+          }
+        ]
+      }
+    ],
+    "context": [
+      {
+        "command": "toc:run-cells",
+        "selector": ".jp-TableOfContents-content[data-document-type=\"notebook\"] .jp-tocItem"
+      }
+    ]
+  },
+  "jupyter.lab.shortcuts": [
+    {
+      "command": "toc:show-panel",
+      "keys": ["Accel Shift K"],
+      "selector": "body"
+    }
+  ],
+  "properties": {
+    "maximalDepth": {
+      "title": "Maximal headings depth",
+      "type": "integer",
+      "minimum": 1,
+      "default": 4
+    },
+    "numberingH1": {
+      "title": "Enable 1st headings numbering",
+      "description": "Whether to number first-level headings or not.",
+      "type": "boolean",
+      "default": true
+    },
+    "numberHeaders": {
+      "title": "Enable headings numbering",
+      "description": "Whether to automatically number the headings or not.",
+      "type": "boolean",
+      "default": false
+    },
+    "includeOutput": {
+      "title": "Include cell output in headings",
+      "description": "Whether to include cell output in headings or not.",
+      "type": "boolean",
+      "default": true
+    },
+    "syncCollapseState": {
+      "type": "boolean",
+      "title": "Synchronize collapse state",
+      "description": "If set to true, when a heading is collapsed in the table of contents the corresponding section in the document is collapsed as well and vice versa. This inhibits the cell output headings.",
+      "default": false
+    },
+    "baseNumbering": {
+      "title": "Base level for the highest headings",
+      "type": "integer",
+      "description": "The number headings start at.",
+      "default": 1
+    }
+  },
+  "additionalProperties": false,
+  "type": "object"
+}
diff --git a/packages/toc-extension/src/index.ts b/packages/toc-extension/src/index.ts
index 334a5a2a2dcc..e0e9e69af392 100644
--- a/packages/toc-extension/src/index.ts
+++ b/packages/toc-extension/src/index.ts
@@ -11,32 +11,41 @@ import {
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-import { IDocumentManager } from '@jupyterlab/docmanager';
-import { IEditorTracker } from '@jupyterlab/fileeditor';
-import { IMarkdownViewerTracker } from '@jupyterlab/markdownviewer';
-import { INotebookTracker } from '@jupyterlab/notebook';
-import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import {
-  createLatexGenerator,
-  createMarkdownGenerator,
-  createNotebookGenerator,
-  createPythonGenerator,
-  createRenderedMarkdownGenerator,
   ITableOfContentsRegistry,
-  TableOfContentsRegistry as Registry,
-  TableOfContents
+  ITableOfContentsTracker,
+  TableOfContents,
+  TableOfContentsPanel,
+  TableOfContentsRegistry,
+  TableOfContentsTracker
 } from '@jupyterlab/toc';
-import { ITranslator } from '@jupyterlab/translation';
-import { tocIcon } from '@jupyterlab/ui-components';
-import { INotebookHeading } from '@jupyterlab/toc';
-import { CodeCell, MarkdownCell } from '@jupyterlab/cells';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import {
+  collapseAllIcon,
+  CommandToolbarButton,
+  ellipsesIcon,
+  expandAllIcon,
+  MenuSvg,
+  numberingIcon,
+  tocIcon,
+  Toolbar,
+  ToolbarButton
+} from '@jupyterlab/ui-components';
 
 /**
- * The command IDs used by TOC item.
+ * A namespace for command IDs of table of contents plugin.
  */
 namespace CommandIDs {
-  export const runCells = 'toc:run-cells';
+  export const displayNumbering = 'toc:display-numbering';
+
+  export const displayH1Numbering = 'toc:display-h1-numbering';
+
+  export const displayOutputNumbering = 'toc:display-outputs-numbering';
+
+  export const showPanel = 'toc:show-panel';
+
+  export const toggleCollapse = 'toc:toggle-collapse';
 }
 
 /**
@@ -44,91 +53,112 @@ namespace CommandIDs {
  *
  * @private
  * @param app - Jupyter application
- * @param docmanager - document manager
- * @param rendermime - rendered MIME registry
+ * @param tocRegistry - Table of contents registry
  * @param translator - translator
- * @param editorTracker - editor tracker
  * @param restorer - application layout restorer
  * @param labShell - Jupyter lab shell
- * @param markdownViewerTracker - Markdown viewer tracker
- * @param notebookTracker - notebook tracker
  * @param settingRegistry - setting registry
  * @returns table of contents registry
  */
 async function activateTOC(
   app: JupyterFrontEnd,
-  docmanager: IDocumentManager,
-  rendermime: IRenderMimeRegistry,
-  translator: ITranslator,
-  editorTracker?: IEditorTracker,
-  restorer?: ILayoutRestorer,
-  labShell?: ILabShell,
-  markdownViewerTracker?: IMarkdownViewerTracker,
-  notebookTracker?: INotebookTracker,
-  settingRegistry?: ISettingRegistry
-): Promise<ITableOfContentsRegistry> {
-  const trans = translator.load('jupyterlab');
-  // Create the ToC widget:
-  const toc = new TableOfContents({
-    docmanager,
-    rendermime,
-    translator
-  });
+  tocRegistry: ITableOfContentsRegistry,
+  translator?: ITranslator | null,
+  restorer?: ILayoutRestorer | null,
+  labShell?: ILabShell | null,
+  settingRegistry?: ISettingRegistry | null
+): Promise<ITableOfContentsTracker> {
+  const trans = (translator ?? nullTranslator).load('jupyterlab');
+  let configuration = { ...TableOfContents.defaultConfig };
 
-  // Create the ToC registry:
-  const registry = new Registry();
-
-  // Add the ToC to the left area:
+  // Create the ToC widget:
+  const toc = new TableOfContentsPanel(translator ?? undefined);
   toc.title.icon = tocIcon;
   toc.title.caption = trans.__('Table of Contents');
   toc.id = 'table-of-contents';
   toc.node.setAttribute('role', 'region');
   toc.node.setAttribute('aria-label', trans.__('Table of Contents section'));
 
-  app.shell.add(toc, 'left', { rank: 400 });
-
-  app.commands.addCommand(CommandIDs.runCells, {
-    execute: args => {
-      if (!notebookTracker) {
-        return null;
+  app.commands.addCommand(CommandIDs.displayH1Numbering, {
+    label: trans.__('Show first-level heading number'),
+    execute: () => {
+      if (toc.model) {
+        toc.model.setConfiguration({
+          numberingH1: !toc.model.configuration.numberingH1
+        });
       }
+    },
+    isEnabled: () =>
+      toc.model?.supportedOptions.includes('numberingH1') ?? false,
+    isToggled: () => toc.model?.configuration.numberingH1 ?? false
+  });
 
-      const panel = notebookTracker.currentWidget;
-      if (panel == null) {
-        return;
+  app.commands.addCommand(CommandIDs.displayNumbering, {
+    label: trans.__('Show heading number in the document'),
+    icon: args => (args.toolbar ? numberingIcon : undefined),
+    execute: () => {
+      if (toc.model) {
+        toc.model.setConfiguration({
+          numberHeaders: !toc.model.configuration.numberHeaders
+        });
+        app.commands.notifyCommandChanged(CommandIDs.displayNumbering);
       }
+    },
+    isEnabled: () =>
+      toc.model?.supportedOptions.includes('numberHeaders') ?? false,
+    isToggled: () => toc.model?.configuration.numberHeaders ?? false
+  });
 
-      const cells = panel.content.widgets;
-      if (cells === undefined) {
-        return;
+  app.commands.addCommand(CommandIDs.displayOutputNumbering, {
+    label: trans.__('Show output headings'),
+    execute: () => {
+      if (toc.model) {
+        toc.model.setConfiguration({
+          includeOutput: !toc.model.configuration.includeOutput
+        });
       }
+    },
+    isEnabled: () =>
+      toc.model?.supportedOptions.includes('includeOutput') ?? false,
+    isToggled: () => toc.model?.configuration.includeOutput ?? false
+  });
 
-      const activeCell = (toc.activeEntry as INotebookHeading).cellRef;
-
-      if (activeCell instanceof MarkdownCell) {
-        let level = activeCell.headingInfo.level;
-        for (let i = cells.indexOf(activeCell) + 1; i < cells.length; i++) {
-          const cell = cells[i];
-          if (
-            cell instanceof MarkdownCell &&
-            cell.headingInfo.level <= level &&
-            cell.headingInfo.level > -1
-          ) {
-            break;
-          }
-          if (cell instanceof CodeCell) {
-            void CodeCell.execute(cell, panel.sessionContext);
-          }
-        }
-      } else {
-        if (activeCell instanceof CodeCell) {
-          void CodeCell.execute(activeCell, panel.sessionContext);
+  app.commands.addCommand(CommandIDs.showPanel, {
+    label: trans.__('Table of Contents'),
+    execute: () => {
+      app.shell.activateById(toc.id);
+    }
+  });
+
+  function someExpanded(model: TableOfContents.Model): boolean {
+    return model.headings.some(h => !(h.collapsed ?? false));
+  }
+
+  app.commands.addCommand(CommandIDs.toggleCollapse, {
+    label: () =>
+      toc.model && !someExpanded(toc.model)
+        ? trans.__('Expand All Headings')
+        : trans.__('Collapse All Headings'),
+    icon: args =>
+      args.toolbar
+        ? toc.model && !someExpanded(toc.model)
+          ? expandAllIcon
+          : collapseAllIcon
+        : undefined,
+    execute: () => {
+      if (toc.model) {
+        if (someExpanded(toc.model)) {
+          toc.model.toggleCollapse({ collapsed: true });
+        } else {
+          toc.model.toggleCollapse({ collapsed: false });
         }
       }
     },
-    label: trans.__('Run Cell(s)')
+    isEnabled: () => toc.model !== null
   });
 
+  const tracker = new TableOfContentsTracker();
+
   if (restorer) {
     // Add the ToC widget to the application restorer:
     restorer.add(toc, '@jupyterlab/toc:plugin');
@@ -138,7 +168,36 @@ async function activateTOC(
   let settings: ISettingRegistry.ISettings | undefined;
   if (settingRegistry) {
     try {
-      settings = await settingRegistry.load('@jupyterlab/toc-extension:plugin');
+      settings = await settingRegistry.load(registry.id);
+      const updateSettings = (plugin: ISettingRegistry.ISettings) => {
+        const composite = plugin.composite;
+        for (const key of [...Object.keys(configuration)]) {
+          const value = composite[key] as any;
+          if (value !== undefined) {
+            configuration[key] = value;
+          }
+        }
+
+        if (labShell) {
+          for (const widget of labShell.widgets('main')) {
+            const model = tracker.get(widget);
+            if (model) {
+              model.setConfiguration(configuration);
+            }
+          }
+        } else {
+          if (app.shell.currentWidget) {
+            const model = tracker.get(app.shell.currentWidget);
+            if (model) {
+              model.setConfiguration(configuration);
+            }
+          }
+        }
+      };
+      if (settings) {
+        settings.changed.connect(updateSettings);
+        updateSettings(settings);
+      }
     } catch (error) {
       console.error(
         `Failed to load settings for the Table of Contents extension.\n\n${error}`
@@ -146,56 +205,64 @@ async function activateTOC(
     }
   }
 
-  // Create a notebook generator:
-  if (notebookTracker) {
-    const notebookGenerator = createNotebookGenerator(
-      notebookTracker,
-      toc,
-      rendermime.sanitizer,
-      translator,
-      settings
-    );
-    registry.add(notebookGenerator);
-  }
+  // Set up the panel toolbar
+  const numbering = new CommandToolbarButton({
+    commands: app.commands,
+    id: CommandIDs.displayNumbering,
+    args: {
+      toolbar: true
+    },
+    label: ''
+  });
+  numbering.addClass('jp-toc-numberingButton');
+  toc.toolbar.addItem('display-numbering', numbering);
 
-  // Create a Markdown generator:
-  if (editorTracker) {
-    const markdownGenerator = createMarkdownGenerator(
-      editorTracker,
-      toc,
-      rendermime.sanitizer,
-      translator,
-      settings
-    );
-    registry.add(markdownGenerator);
-
-    // Create a LaTeX generator:
-    const latexGenerator = createLatexGenerator(editorTracker);
-    registry.add(latexGenerator);
-
-    // Create a Python generator:
-    const pythonGenerator = createPythonGenerator(editorTracker);
-    registry.add(pythonGenerator);
-  }
+  toc.toolbar.addItem('spacer', Toolbar.createSpacerItem());
 
-  // Create a rendered Markdown generator:
-  if (markdownViewerTracker) {
-    const renderedMarkdownGenerator = createRenderedMarkdownGenerator(
-      markdownViewerTracker,
-      toc,
-      rendermime.sanitizer,
-      translator,
-      settings
-    );
-    registry.add(renderedMarkdownGenerator);
-  }
+  toc.toolbar.addItem(
+    'collapse-all',
+    new CommandToolbarButton({
+      commands: app.commands,
+      id: CommandIDs.toggleCollapse,
+      args: {
+        toolbar: true
+      },
+      label: ''
+    })
+  );
+
+  const toolbarMenu = new MenuSvg({ commands: app.commands });
+  toolbarMenu.addItem({
+    command: CommandIDs.displayH1Numbering
+  });
+  toolbarMenu.addItem({
+    command: CommandIDs.displayOutputNumbering
+  });
+  const menuButton = new ToolbarButton({
+    tooltip: trans.__('More actions…'),
+    icon: ellipsesIcon,
+    actualOnClick: true,
+    onClick: () => {
+      const bbox = menuButton.node.getBoundingClientRect();
+      toolbarMenu.open(bbox.x, bbox.bottom);
+    }
+  });
+  toc.toolbar.addItem('submenu', menuButton);
+
+  // Add the ToC to the left area:
+  app.shell.add(toc, 'left', { rank: 400, type: 'Table of Contents' });
 
   // Update the ToC when the active widget changes:
   if (labShell) {
     labShell.currentChanged.connect(onConnect);
   }
 
-  return registry;
+  // Connect to current widget
+  void app.restored.then(() => {
+    onConnect();
+  });
+
+  return tracker;
 
   /**
    * Callback invoked when the active widget changes.
@@ -207,41 +274,69 @@ async function activateTOC(
     if (!widget) {
       return;
     }
-    let generator = registry.find(widget);
-    if (!generator) {
-      // If the previously used widget is still available, stick with it.
-      // Otherwise, set the current ToC widget to null.
-      if (toc.current && toc.current.widget.isDisposed) {
-        toc.current = null;
+    let model = tracker.get(widget);
+    if (!model) {
+      model = tocRegistry.getModel(widget, configuration) ?? null;
+      if (model) {
+        tracker.add(widget, model);
       }
-      return;
+
+      widget.disposed.connect(() => {
+        model?.dispose();
+      });
     }
-    toc.current = { widget, generator };
+
+    if (toc.model) {
+      toc.model.headingsChanged.disconnect(onCollapseChange);
+      toc.model.collapseChanged.disconnect(onCollapseChange);
+    }
+
+    toc.model = model;
+    if (toc.model) {
+      toc.model.headingsChanged.connect(onCollapseChange);
+      toc.model.collapseChanged.connect(onCollapseChange);
+    }
+    setToolbarButtonsState();
+  }
+
+  function setToolbarButtonsState() {
+    app.commands.notifyCommandChanged(CommandIDs.displayNumbering);
+    app.commands.notifyCommandChanged(CommandIDs.toggleCollapse);
+  }
+
+  function onCollapseChange() {
+    app.commands.notifyCommandChanged(CommandIDs.toggleCollapse);
   }
 }
 
 /**
- * Initialization data for the ToC extension.
- *
- * @private
+ * Table of contents registry plugin.
  */
-const extension: JupyterFrontEndPlugin<ITableOfContentsRegistry> = {
-  id: '@jupyterlab/toc:plugin',
+const registry: JupyterFrontEndPlugin<ITableOfContentsRegistry> = {
+  id: '@jupyterlab/toc-extension:registry',
+  description: 'Provides the table of contents registry.',
   autoStart: true,
   provides: ITableOfContentsRegistry,
-  requires: [IDocumentManager, IRenderMimeRegistry, ITranslator],
-  optional: [
-    IEditorTracker,
-    ILayoutRestorer,
-    ILabShell,
-    IMarkdownViewerTracker,
-    INotebookTracker,
-    ISettingRegistry
-  ],
+  activate: (): ITableOfContentsRegistry => {
+    // Create the ToC registry
+    return new TableOfContentsRegistry();
+  }
+};
+
+/**
+ * Table of contents tracker plugin.
+ */
+const tracker: JupyterFrontEndPlugin<ITableOfContentsTracker> = {
+  id: '@jupyterlab/toc-extension:tracker',
+  description: 'Adds the table of content widget and provides its tracker.',
+  autoStart: true,
+  provides: ITableOfContentsTracker,
+  requires: [ITableOfContentsRegistry],
+  optional: [ITranslator, ILayoutRestorer, ILabShell, ISettingRegistry],
   activate: activateTOC
 };
 
 /**
  * Exports.
  */
-export default extension;
+export default [registry, tracker];
diff --git a/packages/toc-extension/style/base.css b/packages/toc-extension/style/base.css
new file mode 100644
index 000000000000..1b66edd7fd16
--- /dev/null
+++ b/packages/toc-extension/style/base.css
@@ -0,0 +1,16 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+.jp-toc-numberingButton:hover button.lm-mod-toggled.jp-Button.jp-mod-minimal {
+  background-color: var(--jp-inverse-layout-color4);
+}
+
+.jp-toc-numberingButton button.lm-mod-toggled .jp-icon3[fill] {
+  fill: var(--jp-layout-color1);
+}
+
+.jp-toc-numberingButton button.lm-mod-toggled.jp-Button.jp-mod-minimal {
+  background-color: var(--jp-inverse-layout-color3);
+}
diff --git a/packages/toc-extension/style/index.css b/packages/toc-extension/style/index.css
index 2efcfd5d1c68..aa33799b71b6 100644
--- a/packages/toc-extension/style/index.css
+++ b/packages/toc-extension/style/index.css
@@ -5,11 +5,6 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@jupyterlab/ui-components/style/index.css');
-@import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
-@import url('~@jupyterlab/docmanager/style/index.css');
-@import url('~@jupyterlab/cells/style/index.css');
-@import url('~@jupyterlab/fileeditor/style/index.css');
-@import url('~@jupyterlab/markdownviewer/style/index.css');
-@import url('~@jupyterlab/notebook/style/index.css');
 @import url('~@jupyterlab/toc/style/index.css');
+@import url('./base.css');
diff --git a/packages/toc-extension/style/index.js b/packages/toc-extension/style/index.js
index 704a9e6d391a..e52808bcf98c 100644
--- a/packages/toc-extension/style/index.js
+++ b/packages/toc-extension/style/index.js
@@ -5,11 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@jupyterlab/ui-components/style/index.js';
-import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/application/style/index.js';
-import '@jupyterlab/docmanager/style/index.js';
-import '@jupyterlab/cells/style/index.js';
-import '@jupyterlab/fileeditor/style/index.js';
-import '@jupyterlab/markdownviewer/style/index.js';
-import '@jupyterlab/notebook/style/index.js';
 import '@jupyterlab/toc/style/index.js';
+
+import './base.css';
diff --git a/packages/toc-extension/tsconfig.json b/packages/toc-extension/tsconfig.json
index d9f730114cfb..1d0f399e63d3 100644
--- a/packages/toc-extension/tsconfig.json
+++ b/packages/toc-extension/tsconfig.json
@@ -9,24 +9,6 @@
     {
       "path": "../application"
     },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../docmanager"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../markdownviewer"
-    },
-    {
-      "path": "../notebook"
-    },
-    {
-      "path": "../rendermime"
-    },
     {
       "path": "../settingregistry"
     },
diff --git a/packages/toc/.vscode/launch.json b/packages/toc/.vscode/launch.json
new file mode 100644
index 000000000000..66fb4b825a88
--- /dev/null
+++ b/packages/toc/.vscode/launch.json
@@ -0,0 +1,15 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "node",
+            "request": "attach",
+            "name": "Attach to jest",
+            // Usage:
+            // Open the parent directory in VSCode
+            // Run `jlpm test:debug:watch` in a terminal
+            // Run this debugging task
+            "port": 9229
+        }
+    ]
+}
diff --git a/packages/toc/babel.config.js b/packages/toc/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/toc/babel.config.js
+++ b/packages/toc/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/toc/jest.config.js b/packages/toc/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/toc/jest.config.js
+++ b/packages/toc/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/toc/package.json b/packages/toc/package.json
index 2d5d568e3c40..b58f46fdfa00 100644
--- a/packages/toc/package.json
+++ b/packages/toc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/toc",
-  "version": "5.6.6",
+  "version": "6.0.8",
   "description": "JupyterLab - Table of Contents widget",
   "keywords": [
     "jupyterlab"
@@ -26,7 +26,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/*.json",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -35,43 +36,33 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docmanager": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/markdownviewer": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/domutils": "^1.8.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1"
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/docregistry": "^4.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
+    "react": "^18.2.0"
   },
   "devDependencies": {
-    "@babel/core": "^7.10.2",
-    "@babel/preset-env": "^7.10.2",
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/react": "^17.0.0",
-    "@types/react-dom": "^17.0.0",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react": "^18.0.26",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/toc/src/factory.ts b/packages/toc/src/factory.ts
new file mode 100644
index 000000000000..1dfca07946a0
--- /dev/null
+++ b/packages/toc/src/factory.ts
@@ -0,0 +1,108 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { IWidgetTracker } from '@jupyterlab/apputils';
+import { ActivityMonitor, PathExt } from '@jupyterlab/coreutils';
+import { IDocumentWidget } from '@jupyterlab/docregistry';
+import { Widget } from '@lumino/widgets';
+import { TableOfContentsModel } from './model';
+import { TableOfContents } from './tokens';
+
+/**
+ * Timeout for throttling ToC rendering following model changes.
+ *
+ * @private
+ */
+const RENDER_TIMEOUT = 1000;
+
+/**
+ * Abstract table of contents model factory for IDocumentWidget.
+ */
+export abstract class TableOfContentsFactory<
+  W extends IDocumentWidget,
+  H extends TableOfContents.IHeading = TableOfContents.IHeading
+> implements TableOfContents.IFactory<W, H>
+{
+  /**
+   * Constructor
+   *
+   * @param tracker Widget tracker
+   */
+  constructor(protected tracker: IWidgetTracker<W>) {}
+
+  /**
+   * Whether the factory can handle the widget or not.
+   *
+   * @param widget - widget
+   * @returns boolean indicating a ToC can be generated
+   */
+  isApplicable(widget: Widget): boolean {
+    if (!this.tracker.has(widget)) {
+      return false;
+    }
+
+    return true;
+  }
+
+  /**
+   * Create a new table of contents model for the widget
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns The table of contents model
+   */
+  createNew(
+    widget: W,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContentsModel<H, W> {
+    const model = this._createNew(widget, configuration);
+
+    const context = widget.context;
+
+    const updateHeadings = () => {
+      model.refresh().catch(reason => {
+        console.error('Failed to update the table of contents.', reason);
+      });
+    };
+    const monitor = new ActivityMonitor({
+      signal: context.model.contentChanged,
+      timeout: RENDER_TIMEOUT
+    });
+    monitor.activityStopped.connect(updateHeadings);
+
+    const updateTitle = () => {
+      model.title = PathExt.basename(context.localPath);
+    };
+    context.pathChanged.connect(updateTitle);
+
+    context.ready
+      .then(() => {
+        updateTitle();
+        updateHeadings();
+      })
+      .catch(reason => {
+        console.error(`Failed to initiate headings for ${context.localPath}.`);
+      });
+
+    widget.disposed.connect(() => {
+      monitor.activityStopped.disconnect(updateHeadings);
+      context.pathChanged.disconnect(updateTitle);
+    });
+
+    return model;
+  }
+
+  /**
+   * Abstract table of contents model instantiation to allow
+   * override by real implementation to customize it. The public
+   * `createNew` contains the signal connections standards for IDocumentWidget
+   * when the model has been instantiated.
+   *
+   * @param widget
+   * @param configuration
+   */
+  protected abstract _createNew(
+    widget: W,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContentsModel<H, W>;
+}
diff --git a/packages/toc/src/generators/latex/index.ts b/packages/toc/src/generators/latex/index.ts
deleted file mode 100644
index 44a31ebd181b..000000000000
--- a/packages/toc/src/generators/latex/index.ts
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { IHeading } from '../../utils/headings';
-
-/**
- * Maps LaTeX section headings to HTML header levels.
- *
- * ## Notes
- *
- * -   As `part` and `chapter` section headings appear to be less common, assign them to heading level 1.
- *
- * @private
- */
-const LATEX_LEVELS: { [label: string]: number } = {
-  part: 1, // Only available for report and book classes
-  chapter: 1, // Only available for report and book classes
-  section: 1,
-  subsection: 2,
-  subsubsection: 3,
-  paragraph: 4,
-  subparagraph: 5
-};
-
-/**
- * Converts array elements to "entries".
- *
- * @private
- * @param arr - input array
- * @returns input array
- *
- * @example
- * const arr = toEntries([4,5,6]);
- * // returns [[4,0], [5,1], [6,2]]
- */
-function toEntries(arr: Array<any>): Array<[any, number]> {
-  for (let i = 0; i < arr.length; i++) {
-    arr[i] = [arr[i], i];
-  }
-  return arr;
-}
-
-/**
- * Returns a boolean indicating whether this ToC generator is enabled.
- *
- * @private
- * @param editor - editor widget
- * @returns boolean indicating whether this ToC generator is enabled
- */
-function isEnabled(editor: IDocumentWidget<FileEditor>) {
-  // Only enable this if the editor MIME type matches one of a few LaTeX variants:
-  let mime = editor.content.model.mimeType;
-  return mime === 'text/x-latex' || mime === 'text/x-stex';
-}
-
-/**
- * Generates a table of contents.
- *
- * @private
- * @param editor - editor widget
- * @returns a list of headings
- */
-function generate(editor: IDocumentWidget<FileEditor>): IHeading[] {
-  // Split the text into lines:
-  let lines = editor.content.model.value.text.split('\n') as Array<any>;
-
-  // Convert the list into "entries" so we can use the line number to scroll the editor upon ToC item click:
-  lines = toEntries(lines);
-
-  // Iterate over the lines to get the heading level and text for each line:
-  let headings: IHeading[] = [];
-  for (let i = 0; i < lines.length; i++) {
-    const RE = /^\s*\\(section|subsection|subsubsection){(.+)}/;
-    const match = lines[i][0].match(RE);
-    if (match) {
-      headings.push({
-        text: match[2],
-        level: LATEX_LEVELS[match[1]],
-        onClick: onClick(lines[i][1])
-      });
-    }
-  }
-  return headings;
-
-  /**
-   * Returns a "click" handler.
-   *
-   * @private
-   * @param line - line number
-   * @returns click handler
-   */
-  function onClick(line: number) {
-    return () => {
-      editor.content.editor.setCursorPosition({
-        line: line,
-        column: 0
-      });
-    };
-  }
-}
-
-/**
- * Returns a ToC generator for LaTeX files.
- *
- * @private
- * @param tracker - file editor tracker
- * @returns ToC generator capable of parsing LaTeX files
- */
-function createLatexGenerator(
-  tracker: IEditorTracker
-): Registry.IGenerator<IDocumentWidget<FileEditor>> {
-  return {
-    tracker,
-    usesLatex: true,
-    isEnabled: isEnabled,
-    generate: generate
-  };
-}
-
-/**
- * Exports.
- */
-export { createLatexGenerator };
diff --git a/packages/toc/src/generators/markdown/get_headings.ts b/packages/toc/src/generators/markdown/get_headings.ts
deleted file mode 100644
index f4c671b83e69..000000000000
--- a/packages/toc/src/generators/markdown/get_headings.ts
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { generateNumbering } from '../../utils/generate_numbering';
-import { INumberedHeading } from '../../utils/headings';
-import { INumberingDictionary } from '../../utils/numbering_dictionary';
-import { parseHeading } from '../../utils/parse_heading';
-
-/**
- * Returns a "click" handler.
- *
- * @private
- * @param line - line number
- * @returns "click" handler
- */
-type onClickFactory = (line: number) => () => void;
-
-/**
- * Parses a provided string and returns a list of headings.
- *
- * @private
- * @param text - input text
- * @param onClick - callback which returns a "click" handler
- * @param dict - numbering dictionary
- * @param numberingH1 - whether first level header should be numbered
- * @returns list of headings
- */
-function getHeadings(
-  text: string,
-  onClick: onClickFactory,
-  dict: INumberingDictionary,
-  numberingH1: boolean
-): INumberedHeading[] {
-  // Split the text into lines:
-  const lines = text.split('\n');
-
-  // Iterate over the lines to get the header level and text for each line:
-  let headings: INumberedHeading[] = [];
-  let FLG;
-  for (let i = 0; i < lines.length; i++) {
-    let line = lines[i];
-
-    // Don't check for Markdown headings if in a code block:
-    if (line.indexOf('```') === 0) {
-      FLG = !FLG;
-    }
-    if (FLG) {
-      continue;
-    }
-    line += lines[i + 1] ? '\n' + lines[i + 1] : '';
-    const heading = parseHeading(line); // append the next line to capture alternative style Markdown headings
-    if (heading) {
-      let level = heading.level;
-      if (!numberingH1) {
-        level -= 1;
-      }
-      headings.push({
-        text: heading.text,
-        numbering: generateNumbering(dict, level),
-        level: heading.level,
-        onClick: onClick(i)
-      });
-    }
-  }
-  return headings;
-}
-
-/**
- * Exports.
- */
-export { getHeadings };
diff --git a/packages/toc/src/generators/markdown/get_rendered_headings.ts b/packages/toc/src/generators/markdown/get_rendered_headings.ts
deleted file mode 100644
index af82fbc0b87d..000000000000
--- a/packages/toc/src/generators/markdown/get_rendered_headings.ts
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import { generateNumbering } from '../../utils/generate_numbering';
-import { INumberedHeading } from '../../utils/headings';
-import { INumberingDictionary } from '../../utils/numbering_dictionary';
-import { sanitizerOptions } from '../../utils/sanitizer_options';
-
-/**
- * Returns a "click" handler.
- *
- * @private
- * @param heading - heading element
- * @returns "click" handler
- */
-function onClick(heading: Element) {
-  return () => {
-    heading.scrollIntoView();
-  };
-}
-
-/**
- * Processes an HTML element containing rendered Markdown and returns a list of headings.
- *
- * @private
- * @param node - HTML element
- * @param sanitizer - HTML sanitizer
- * @param dict - numbering dictionary
- * @param numbering - boolean indicating whether to enable numbering
- * @param numberingH1 - whether first level header should be numbered
- * @returns list of headings
- */
-function getRenderedHeadings(
-  node: HTMLElement,
-  sanitizer: ISanitizer,
-  dict: INumberingDictionary,
-  numbering = true,
-  numberingH1 = true
-): INumberedHeading[] {
-  let nodes = node.querySelectorAll('h1, h2, h3, h4, h5, h6');
-  let headings: INumberedHeading[] = [];
-  for (let i = 0; i < nodes.length; i++) {
-    const heading = nodes[i];
-    let level = parseInt(heading.tagName[1], 10);
-    let text = heading.textContent ? heading.textContent : '';
-    let hide = !numbering;
-
-    // Show/hide numbering DOM element based on user settings:
-    if (heading.getElementsByClassName('numbering-entry').length > 0) {
-      heading.removeChild(heading.getElementsByClassName('numbering-entry')[0]);
-    }
-    let html = sanitizer.sanitize(heading.innerHTML, sanitizerOptions);
-    html = html.replace('¶', ''); // remove the anchor symbol
-
-    // Generate a numbering string:
-    if (!numberingH1) {
-      level -= 1;
-    }
-    let nstr = generateNumbering(dict, level);
-    // Generate the numbering DOM element:
-    let nhtml = '';
-    if (!hide) {
-      nhtml = '<span class="numbering-entry">' + nstr + '</span>';
-    }
-    // Append the numbering element to the document:
-    heading.innerHTML = nhtml + html;
-
-    headings.push({
-      level,
-      text: text.replace('¶', ''),
-      numbering: nstr,
-      html,
-      onClick: onClick(heading)
-    });
-  }
-  return headings;
-}
-
-/**
- * Exports.
- */
-export { getRenderedHeadings };
diff --git a/packages/toc/src/generators/markdown/index.ts b/packages/toc/src/generators/markdown/index.ts
deleted file mode 100644
index cc703270165e..000000000000
--- a/packages/toc/src/generators/markdown/index.ts
+++ /dev/null
@@ -1,224 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
-import {
-  IMarkdownViewerTracker,
-  MarkdownDocument
-} from '@jupyterlab/markdownviewer';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { TableOfContents } from '../../toc';
-import { INumberedHeading } from '../../utils/headings';
-import { isMarkdown } from '../../utils/is_markdown';
-import { OptionsManager } from './options_manager';
-import { render } from './render';
-import { toolbar } from './toolbar_generator';
-import { getHeadings } from './get_headings';
-import { getRenderedHeadings } from './get_rendered_headings';
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
-
-/**
- * Returns a boolean indicating whether this ToC generator is enabled.
- *
- * @private
- * @param editor - editor widget
- * @returns boolean indicating whether this ToC generator is enabled
- */
-function isEnabled(editor: IDocumentWidget<FileEditor>) {
-  // Only enable this if the editor MIME type matches one of a few Markdown variants:
-  return isMarkdown(editor.content.model.mimeType);
-}
-
-/**
- * Generates a table of contents.
- *
- * @private
- * @param editor - editor widget
- * @param options - manage Markdown ToC generator options
- * @returns a list of headings
- */
-function generate(
-  editor: IDocumentWidget<FileEditor>,
-  options?: OptionsManager
-): INumberedHeading[] {
-  let dict = {};
-  let numberingH1 = true;
-  if (options !== undefined) {
-    numberingH1 = options.numberingH1;
-  }
-  return getHeadings(
-    editor.content.model.value.text,
-    onClick,
-    dict,
-    numberingH1
-  );
-
-  /**
-   * Returns a "click" handler.
-   *
-   * @private
-   * @param line - line number
-   * @returns click handler
-   */
-  function onClick(line: number) {
-    return () => {
-      editor.content.editor.setCursorPosition({
-        line: line,
-        column: 0
-      });
-    };
-  }
-}
-
-/**
- * Returns a ToC generator for Markdown files.
- *
- * @private
- * @param tracker - file editor tracker
- * @param widget - table of contents widget
- * @param sanitizer - HTML sanitizer
- * @param settings - advanced settings for toc extension
- * @returns ToC generator capable of parsing Markdown files
- */
-function createMarkdownGenerator(
-  tracker: IEditorTracker,
-  widget: TableOfContents,
-  sanitizer: ISanitizer,
-  translator?: ITranslator,
-  settings?: ISettingRegistry.ISettings
-): Registry.IGenerator<IDocumentWidget<FileEditor>> {
-  let numberingH1 = true;
-  if (settings) {
-    numberingH1 = settings.composite.numberingH1 as boolean;
-  }
-  const options = new OptionsManager(widget, {
-    numbering: true,
-    numberingH1: numberingH1,
-    sanitizer,
-    translator: translator || nullTranslator
-  });
-  if (settings) {
-    settings.changed.connect(() => {
-      options.numberingH1 = settings.composite.numberingH1 as boolean;
-    });
-  }
-  return {
-    tracker,
-    usesLatex: true,
-    options: options,
-    toolbarGenerator: generateToolbar,
-    itemRenderer: renderItem,
-    isEnabled: isEnabled,
-    generate: generate
-  };
-
-  /**
-   * Returns a toolbar generator.
-   *
-   * @private
-   * @returns toolbar generator
-   */
-  function generateToolbar() {
-    return toolbar(options);
-  }
-
-  /**
-   * Renders a table of contents item.
-   *
-   * @private
-   * @param item - heading to render
-   * @returns rendered item
-   */
-  function renderItem(item: INumberedHeading) {
-    return render(options, item);
-  }
-}
-
-/**
- * Returns a ToC generator for rendered Markdown files.
- *
- * @param tracker - Markdown viewer tracker
- * @param sanitizer - HTML sanitizer
- * @param widget - table of contents widget
- * @param settings - advanced settings for toc extension
- * @returns ToC generator capable of parsing rendered Markdown files
- */
-function createRenderedMarkdownGenerator(
-  tracker: IMarkdownViewerTracker,
-  widget: TableOfContents,
-  sanitizer: ISanitizer,
-  translator?: ITranslator,
-  settings?: ISettingRegistry.ISettings
-): Registry.IGenerator<MarkdownDocument> {
-  let numberingH1 = true;
-  if (settings) {
-    numberingH1 = settings.composite.numberingH1 as boolean;
-  }
-  const options = new OptionsManager(widget, {
-    numbering: true,
-    numberingH1: numberingH1,
-    sanitizer,
-    translator: translator || nullTranslator
-  });
-  if (settings) {
-    settings.changed.connect(() => {
-      options.numberingH1 = settings.composite.numberingH1 as boolean;
-    });
-  }
-  return {
-    tracker,
-    usesLatex: true,
-    options: options,
-    toolbarGenerator: generateToolbar,
-    itemRenderer: renderItem,
-    generate: generate
-  };
-
-  /**
-   * Returns a toolbar generator.
-   *
-   * @private
-   * @returns toolbar generator
-   */
-  function generateToolbar() {
-    return toolbar(options);
-  }
-
-  /**
-   * Renders a table of contents item.
-   *
-   * @private
-   * @param item - heading to render
-   * @returns rendered item
-   */
-  function renderItem(item: INumberedHeading) {
-    return render(options, item);
-  }
-
-  /**
-   * Generates a table of contents.
-   *
-   * @private
-   * @param widget - Markdown document widget
-   * @returns a list of headings
-   */
-  function generate(widget: MarkdownDocument): INumberedHeading[] {
-    let dict = {};
-    return getRenderedHeadings(
-      widget.content.node,
-      sanitizer,
-      dict,
-      options.numbering,
-      options.numberingH1
-    );
-  }
-}
-
-/**
- * Exports.
- */
-export { createMarkdownGenerator };
-export { createRenderedMarkdownGenerator };
diff --git a/packages/toc/src/generators/markdown/options_manager.ts b/packages/toc/src/generators/markdown/options_manager.ts
deleted file mode 100644
index e5770a439257..000000000000
--- a/packages/toc/src/generators/markdown/options_manager.ts
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { TableOfContents } from '../../toc';
-
-/**
- * Interface describing constructor options.
- *
- * @private
- */
-interface IOptions {
-  /**
-   * Boolean indicating whether items should be numbered.
-   */
-  numbering: boolean;
-
-  /**
-   * Boolean indicating whether h1 headers should be numbered.
-   */
-  numberingH1: boolean;
-
-  /**
-   * HTML sanitizer.
-   */
-  sanitizer: ISanitizer;
-
-  /**
-   * The application language translator.
-   */
-  translator?: ITranslator;
-}
-
-/**
- * Class for managing Markdown ToC generator options.
- *
- * @private
- */
-class OptionsManager implements Registry.IOptionsManager {
-  /**
-   * Returns an options manager.
-   *
-   * @param widget - table of contents widget
-   * @param options - generator options
-   * @returns options manager
-   */
-  constructor(widget: TableOfContents, options: IOptions) {
-    this._numbering = options.numbering;
-    this._numberingH1 = options.numberingH1;
-    this._widget = widget;
-    this.translator = options.translator || nullTranslator;
-    this.sanitizer = options.sanitizer;
-  }
-
-  /**
-   * HTML sanitizer.
-   */
-  readonly sanitizer: ISanitizer;
-
-  /**
-   * Gets/sets ToC generator numbering.
-   */
-  set numbering(value: boolean) {
-    this._numbering = value;
-    this._widget.update();
-  }
-
-  get numbering() {
-    return this._numbering;
-  }
-
-  /**
-   * Gets/sets ToC generator numbering h1 headers.
-   */
-  set numberingH1(value: boolean) {
-    if (this._numberingH1 != value) {
-      this._numberingH1 = value;
-      this._widget.update();
-    }
-  }
-
-  get numberingH1() {
-    return this._numberingH1;
-  }
-
-  /**
-   * Initializes options.
-   *
-   * ## Notes
-   *
-   * -  This will **not** change notebook meta-data.
-   *
-   * @param numbering - boolean indicating whether to number items
-   */
-  initializeOptions(numbering: boolean, numberingH1: boolean) {
-    this._numbering = numbering;
-    this._numberingH1 = numberingH1;
-    this._widget.update();
-  }
-
-  translator: ITranslator;
-  private _numbering: boolean;
-  private _numberingH1: boolean;
-  private _widget: TableOfContents;
-}
-
-/**
- * Exports.
- */
-export { OptionsManager };
diff --git a/packages/toc/src/generators/markdown/render.tsx b/packages/toc/src/generators/markdown/render.tsx
deleted file mode 100644
index 8d42bab248f8..000000000000
--- a/packages/toc/src/generators/markdown/render.tsx
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-import { INumberedHeading } from '../../utils/headings';
-import { sanitizerOptions } from '../../utils/sanitizer_options';
-import { OptionsManager } from './options_manager';
-
-/**
- * Renders a Markdown table of contents item.
- *
- * @private
- * @param options - generator options
- * @param item - numbered heading
- * @returns rendered item
- */
-function render(options: OptionsManager, item: INumberedHeading) {
-  let fontSizeClass = 'toc-level-size-' + item.level;
-
-  // Render item numbering:
-  let numbering = item.numbering && options.numbering ? item.numbering : '';
-
-  // Render the item:
-  let jsx;
-  if (item.html) {
-    let html = options.sanitizer.sanitize(item.html, sanitizerOptions);
-    jsx = (
-      <span
-        dangerouslySetInnerHTML={{ __html: numbering + html }}
-        className={'toc-markdown-cell ' + fontSizeClass}
-      />
-    );
-  } else {
-    jsx = <span className={fontSizeClass}> {numbering + item.text}</span>;
-  }
-  return jsx;
-}
-
-/**
- * Exports.
- */
-export { render };
diff --git a/packages/toc/src/generators/markdown/toolbar_generator.tsx b/packages/toc/src/generators/markdown/toolbar_generator.tsx
deleted file mode 100644
index b5a7b82a9e15..000000000000
--- a/packages/toc/src/generators/markdown/toolbar_generator.tsx
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { TranslationBundle } from '@jupyterlab/translation';
-import { numberingIcon } from '@jupyterlab/ui-components';
-import * as React from 'react';
-import { OptionsManager } from './options_manager';
-
-/**
- * Interface describing toolbar properties.
- *
- * @private
- */
-interface IProperties {}
-
-/**
- * Interface describing toolbar state.
- *
- * @private
- */
-interface IState {
-  /**
-   * Boolean indicating whether numbering is enabled.
-   */
-  numbering: boolean;
-}
-
-/**
- * Returns a component for rendering a Markdown table of contents toolbar.
- *
- * @private
- * @param options - generator options
- * @returns toolbar component
- */
-function toolbar(options: OptionsManager) {
-  return class Toolbar extends React.Component<IProperties, IState> {
-    /**
-     * Returns a component for rendering a Markdown table of contents toolbar.
-     *
-     * @param props - toolbar properties
-     * @returns toolbar component
-     */
-    constructor(props: IProperties) {
-      super(props);
-      this.state = { numbering: false };
-      options.initializeOptions(false, options.numberingH1);
-      this._trans = options.translator.load('jupyterlab');
-    }
-
-    /**
-     * Renders a toolbar.
-     *
-     * @returns rendered toolbar
-     */
-    render() {
-      const toggleNumbering = () => {
-        options.numbering = !options.numbering;
-        this.setState({ numbering: options.numbering });
-      };
-      const icon = (
-        <div
-          onClick={event => toggleNumbering()}
-          role="text"
-          aria-label={this._trans.__('Toggle Auto-Numbering')}
-          title={this._trans.__('Toggle Auto-Numbering')}
-          className={
-            this.state.numbering
-              ? 'toc-toolbar-icon-selected'
-              : 'toc-toolbar-icon'
-          }
-        >
-          <numberingIcon.react />
-        </div>
-      );
-      return (
-        <div>
-          <div className={'toc-toolbar'}>{icon}</div>
-        </div>
-      );
-    }
-
-    _trans: TranslationBundle;
-  };
-}
-
-/**
- * Exports.
- */
-export { toolbar };
diff --git a/packages/toc/src/generators/notebook/append_collapsible_heading.ts b/packages/toc/src/generators/notebook/append_collapsible_heading.ts
deleted file mode 100644
index b55c1816069d..000000000000
--- a/packages/toc/src/generators/notebook/append_collapsible_heading.ts
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookHeading } from '../../utils/headings';
-import { isHeadingFiltered } from './is_heading_filtered';
-
-/**
- * Appends a collapsible notebook heading to a list of headings.
- *
- * @private
- * @param headings - list of notebook headings
- * @param heading - rendered heading
- * @param prev - previous heading
- * @param collapseLevel - collapse level
- * @param tags - filter tags
- * @param collapsed - boolean indicating whether a heading is collapsed
- * @param cellCollapseMetadata - indicates which metadata string to use based on the cellSyncSetting
- * @returns result tuple
- */
-function appendCollapsibleHeading(
-  headings: INotebookHeading[],
-  heading: INotebookHeading,
-  prev: INotebookHeading | null,
-  collapseLevel: number,
-  tags: string[],
-  collapsed: boolean,
-  cellCollapseMetadata: string
-): [INotebookHeading[], INotebookHeading | null, number] {
-  const len = headings.length;
-  if (!isHeadingFiltered(heading, tags)) {
-    // If the previous heading is a higher level heading, update the heading to note that it has a child heading...
-    if (prev && prev.type === 'header' && prev.level < heading.level) {
-      for (let j = len - 1; j >= 0; j--) {
-        if (headings[j] === prev) {
-          // TODO: can a heading be the child of multiple headings? If not, we can `break` here upon finding a parent heading, so we don't traverse the entire heading list...
-          headings[j].hasChild = true;
-        }
-      }
-    }
-    // If the collapse level doesn't include the heading, or, if there is no collapsing, add to headings and adjust the collapse level...
-    if (collapseLevel >= heading.level || collapseLevel < 0) {
-      headings.push(heading);
-      collapseLevel = collapsed ? heading.level : -1;
-    }
-    prev = heading;
-  } else if (prev && heading.level <= prev.level) {
-    // If the heading is filtered out and has a lower level previous heading, determine if the heading has a parent...
-    let parent = false;
-    let k = len - 1;
-    for (; k >= 0; k--) {
-      if (headings[k].level < heading.level) {
-        prev = headings[k];
-        parent = true;
-        break;
-      }
-    }
-    // If there is no parent, reset collapsing...
-    if (parent) {
-      const isCollapsed = headings[k + 1].cellRef.model.metadata.get(
-        cellCollapseMetadata
-      ) as boolean;
-      collapseLevel = isCollapsed ? headings[k + 1].level : -1;
-    } else {
-      prev = null;
-      collapseLevel = -1;
-    }
-  }
-  return [headings, prev, collapseLevel];
-}
-
-/**
- * Exports.
- */
-export { appendCollapsibleHeading };
diff --git a/packages/toc/src/generators/notebook/append_heading.ts b/packages/toc/src/generators/notebook/append_heading.ts
deleted file mode 100644
index 890de947b392..000000000000
--- a/packages/toc/src/generators/notebook/append_heading.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookHeading } from '../../utils/headings';
-import { isHeadingFiltered } from './is_heading_filtered';
-
-/**
- * Appends a notebook heading to a list of headings.
- *
- * @private
- * @param headings - list of notebook headings
- * @param heading - rendered heading
- * @param prev - previous heading
- * @param collapseLevel - collapse level
- * @param tags - filter tags
- * @returns result tuple
- */
-export function appendHeading(
-  headings: INotebookHeading[],
-  heading: INotebookHeading,
-  prev: INotebookHeading | null,
-  collapseLevel: number,
-  tags: string[]
-): [INotebookHeading[], INotebookHeading | null] {
-  if (heading && !isHeadingFiltered(heading, tags) && heading.text) {
-    // Determine whether this heading is a child of a "header" notebook heading...
-    if (prev && prev.type === 'header') {
-      for (let j = headings.length - 1; j >= 0; j--) {
-        if (headings[j] === prev) {
-          // TODO: can a heading be the child of multiple headings? If not, we can `break` here upon finding a parent heading, so we don't traverse the entire heading list...
-          headings[j].hasChild = true;
-        }
-      }
-    }
-    if (collapseLevel < 0) {
-      headings.push(heading);
-    }
-    prev = heading;
-  }
-  return [headings, prev];
-}
diff --git a/packages/toc/src/generators/notebook/append_markdown_heading.ts b/packages/toc/src/generators/notebook/append_markdown_heading.ts
deleted file mode 100644
index 032064519fa6..000000000000
--- a/packages/toc/src/generators/notebook/append_markdown_heading.ts
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookHeading } from '../../utils/headings';
-import { appendCollapsibleHeading } from './append_collapsible_heading';
-import { appendHeading } from './append_heading';
-
-/**
- * Appends a Markdown notebook heading to a list of headings.
- *
- * @private
- * @param headings - list of notebook headings
- * @param heading - rendered heading
- * @param prev - previous heading
- * @param collapseLevel - collapse level
- * @param tags - filter tags
- * @param collapsed - boolean indicating whether a heading is collapsed
- * @param showMarkdown - boolean indicating whether to show Markdown previews
- * @param cellCollapseMetadata - indicates which metadata string to use based on the cellSyncSetting
- * @returns result tuple
- */
-function appendMarkdownHeading(
-  heading: INotebookHeading | undefined,
-  headings: INotebookHeading[],
-  prev: INotebookHeading | null,
-  collapseLevel: number,
-  tags: string[],
-  collapsed: boolean,
-  showMarkdown: boolean,
-  cellCollapseMetadata: string
-): [INotebookHeading[], INotebookHeading | null, number] {
-  if (heading && heading.type === 'markdown' && showMarkdown) {
-    // Append a Markdown preview heading:
-    [headings, prev] = appendHeading(
-      headings,
-      heading,
-      prev,
-      collapseLevel,
-      tags
-    );
-  } else if (heading && heading.type === 'header') {
-    [headings, prev, collapseLevel] = appendCollapsibleHeading(
-      headings,
-      heading,
-      prev,
-      collapseLevel,
-      tags,
-      collapsed,
-      cellCollapseMetadata
-    );
-  }
-  return [headings, prev, collapseLevel];
-}
-
-/**
- * Exports.
- */
-export { appendMarkdownHeading };
diff --git a/packages/toc/src/generators/notebook/codemirror.tsx b/packages/toc/src/generators/notebook/codemirror.tsx
deleted file mode 100644
index 40f8253a52c5..000000000000
--- a/packages/toc/src/generators/notebook/codemirror.tsx
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import * as React from 'react';
-import { INotebookHeading } from '../../utils/headings';
-import { sanitizerOptions } from '../../utils/sanitizer_options';
-
-/**
- * Interface describing code component properties.
- *
- * @private
- */
-interface IProperties {
-  /**
-   * HTML sanitizer.
-   */
-  sanitizer: ISanitizer;
-
-  /**
-   * Notebook heading.
-   */
-  heading: INotebookHeading;
-}
-
-/**
- * Interface describing code component state.
- */
-interface IState {
-  /**
-   * Notebook heading.
-   */
-  heading: INotebookHeading;
-}
-
-/**
- * Class for rendering a code component.
- *
- * @private
- */
-class CodeComponent extends React.Component<IProperties, IState> {
-  /**
-   * Returns a code component.
-   *
-   * @param props - component properties
-   * @returns code component
-   */
-  constructor(props: IProperties) {
-    super(props);
-    this.state = { heading: props.heading };
-  }
-
-  /**
-   * Updates code component state.
-   *
-   * @param props - component properties
-   */
-  UNSAFE_componentWillReceiveProps(nextProps: IProperties) {
-    this.setState({ heading: nextProps.heading });
-  }
-
-  /**
-   * Renders a code component.
-   *
-   * @returns rendered component
-   */
-  render() {
-    // Get the current rendered CodeMirror:
-    let html = this.state.heading.cellRef!.editor.host.innerHTML;
-
-    // Sanitize the HTML:
-    html = this.props.sanitizer.sanitize(html, sanitizerOptions);
-
-    return (
-      <div className="cm-toc" dangerouslySetInnerHTML={{ __html: html }} />
-    );
-  }
-}
-
-/**
- * Exports.
- */
-export { CodeComponent };
diff --git a/packages/toc/src/generators/notebook/get_code_cell_heading.ts b/packages/toc/src/generators/notebook/get_code_cell_heading.ts
deleted file mode 100644
index d2be518e2085..000000000000
--- a/packages/toc/src/generators/notebook/get_code_cell_heading.ts
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Cell } from '@jupyterlab/cells';
-import { INotebookHeading, RunningStatus } from '../../utils/headings';
-
-/**
- * Returns a "click" handler.
- *
- * @private
- * @param line - line number
- * @returns "click" handler
- */
-type onClickFactory = (line: number) => () => void;
-
-/**
- * Returns a code entry notebook heading from a code string.
- *
- * @private
- * @param text - code string
- * @param onClick - callback which returns a "click" handler
- * @param executionCount - execution count
- * @param lastLevel - last heading level
- * @param cellRef - cell reference
- * @param index - index of referenced cell relative to other cells in the notebook
- * @returns notebook heading
- */
-function getCodeCellHeading(
-  text: string,
-  onClick: onClickFactory,
-  executionCount: string,
-  lastLevel: number,
-  cellRef: Cell,
-  index: number = -1,
-  isRunning = RunningStatus.Idle
-): INotebookHeading {
-  let headings: INotebookHeading[] = [];
-  if (index === -1) {
-    console.warn(
-      'Deprecation warning! index argument will become mandatory in the next version'
-    );
-  }
-  if (text) {
-    const lines = text.split('\n');
-    const len = Math.min(lines.length, 3);
-    let str = '';
-    let i = 0;
-    for (; i < len - 1; i++) {
-      str += lines[i] + '\n';
-    }
-    str += lines[i];
-    headings.push({
-      text: str,
-      level: lastLevel + 1,
-      onClick: onClick(0),
-      type: 'code',
-      prompt: executionCount,
-      cellRef: cellRef,
-      hasChild: false,
-      index: index,
-      isRunning
-    });
-  }
-  return headings[0];
-}
-
-/**
- * Exports.
- */
-export { getCodeCellHeading };
diff --git a/packages/toc/src/generators/notebook/get_last_heading_level.ts b/packages/toc/src/generators/notebook/get_last_heading_level.ts
deleted file mode 100644
index ce046f58be6a..000000000000
--- a/packages/toc/src/generators/notebook/get_last_heading_level.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookHeading } from '../../utils/headings';
-
-/**
- * Returns the last heading level.
- *
- * @private
- * @param headings - list of notebook headings
- * @returns heading level
- */
-function getLastHeadingLevel(headings: INotebookHeading[]): number {
-  if (headings.length > 0) {
-    let loc = headings.length - 1;
-    while (loc >= 0) {
-      if (headings[loc].type === 'header') {
-        return headings[loc].level;
-      }
-      loc -= 1;
-    }
-  }
-  return 0;
-}
-
-/**
- * Exports.
- */
-export { getLastHeadingLevel };
diff --git a/packages/toc/src/generators/notebook/get_markdown_heading.ts b/packages/toc/src/generators/notebook/get_markdown_heading.ts
deleted file mode 100644
index 90537d55d934..000000000000
--- a/packages/toc/src/generators/notebook/get_markdown_heading.ts
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Cell } from '@jupyterlab/cells';
-import { generateNumbering } from '../../utils/generate_numbering';
-import { INotebookHeading, RunningStatus } from '../../utils/headings';
-import { parseHeading } from '../../utils/parse_heading';
-
-/**
- * Returns a "click" handler.
- *
- * @private
- * @param line - line number
- * @returns "click" handler
- */
-type onClickFactory = (line: number) => () => void;
-
-/**
- * Parses a Markdown string and returns a notebook heading.
- *
- * @private
- * @param text - Markdown string
- * @param onClick - callback which returns a "click" handler
- * @param dict - numbering dictionary
- * @param lastLevel - last level
- * @param cellRef - cell reference
- * @param index - index of referenced cell relative to other cells in the notebook
- * @returns notebook heading
- */
-function getMarkdownHeadings(
-  text: string,
-  onClick: onClickFactory,
-  dict: any,
-  lastLevel: number,
-  cellRef: Cell,
-  index: number = -1,
-  isRunning = RunningStatus.Idle
-): INotebookHeading[] {
-  const callback = onClick(0);
-  let headings: INotebookHeading[] = [];
-  if (index === -1) {
-    console.warn(
-      'Deprecation warning! index argument will become mandatory in the next version'
-    );
-  }
-  for (const line of text.split('\n')) {
-    if (line) {
-      const heading = parseHeading(line);
-      if (heading) {
-        headings.push({
-          text: heading.text,
-          level: heading.level,
-          numbering: generateNumbering(dict, heading.level),
-          onClick: callback,
-          type: 'header',
-          cellRef: cellRef,
-          hasChild: false,
-          isRunning,
-          index
-        });
-      } else {
-        headings.push({
-          text: line,
-          level: lastLevel + 1,
-          onClick: callback,
-          type: 'markdown',
-          cellRef: cellRef,
-          hasChild: false,
-          isRunning,
-          index
-        });
-      }
-    }
-  }
-  return headings;
-}
-
-/**
- * Exports.
- */
-export { getMarkdownHeadings };
diff --git a/packages/toc/src/generators/notebook/get_rendered_html_heading.ts b/packages/toc/src/generators/notebook/get_rendered_html_heading.ts
deleted file mode 100644
index 150a726aee5e..000000000000
--- a/packages/toc/src/generators/notebook/get_rendered_html_heading.ts
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import { Cell } from '@jupyterlab/cells';
-import { generateNumbering } from '../../utils/generate_numbering';
-import { INotebookHeading, RunningStatus } from '../../utils/headings';
-import { INumberingDictionary } from '../../utils/numbering_dictionary';
-import { sanitizerOptions } from '../../utils/sanitizer_options';
-
-/**
- * Returns a "click" handler.
- *
- * @private
- * @param el - HTML element
- * @returns "click" handler
- */
-type onClickFactory = (el: Element) => () => void;
-
-/**
- * Returns a notebook heading from an HTML element.
- *
- * @private
- * @param node - HTML element
- * @param onClick - callback which returns a "click" handler
- * @param dict - numbering dictionary
- * @param lastLevel - last level
- * @param numbering - boolean indicating whether to enable numbering
- * @param numberingH1 - boolean indicating whether to enable first level headers numbering
- * @param cellRef - cell reference
- * @param index - index of referenced cell relative to other cells in the notebook
- * @returns notebook heading
- */
-function getRenderedHTMLHeadings(
-  node: HTMLElement,
-  onClick: onClickFactory,
-  sanitizer: ISanitizer,
-  dict: INumberingDictionary,
-  lastLevel: number,
-  numbering = false,
-  numberingH1 = true,
-  cellRef: Cell,
-  index: number = -1,
-  isRunning = RunningStatus.Idle
-): INotebookHeading[] {
-  let nodes = node.querySelectorAll('h1, h2, h3, h4, h5, h6, p');
-
-  if (index === -1) {
-    console.warn(
-      'Deprecation warning! index argument will become mandatory in the next version'
-    );
-  }
-  let headings: INotebookHeading[] = [];
-  for (const el of Array.from(nodes)) {
-    if (el.classList.contains('jp-toc-ignore')) {
-      // skip this element if a special class name is included
-      continue;
-    }
-    if (el.nodeName.toLowerCase() === 'p') {
-      if (el.innerHTML) {
-        let html = sanitizer.sanitize(el.innerHTML, sanitizerOptions);
-        headings.push({
-          level: lastLevel + 1,
-          html: html.replace('¶', ''),
-          text: el.textContent ? el.textContent : '',
-          onClick: onClick(el),
-          type: 'markdown',
-          cellRef: cellRef,
-          hasChild: false,
-          index: index,
-          isRunning
-        });
-      }
-      continue;
-    }
-    if (el.getElementsByClassName('numbering-entry').length > 0) {
-      el.removeChild(el.getElementsByClassName('numbering-entry')[0]);
-    }
-    let html = sanitizer.sanitize(el.innerHTML, sanitizerOptions);
-    html = html.replace('¶', '');
-
-    let level = parseInt(el.tagName[1], 10);
-    if (!numberingH1) {
-      level -= 1;
-    }
-    let nstr = generateNumbering(dict, level);
-    if (numbering) {
-      const nhtml = document.createElement('span');
-      nhtml.classList.add('numbering-entry');
-      nhtml.textContent = nstr ?? '';
-      el.insertBefore(nhtml, el.firstChild);
-    }
-    headings.push({
-      level: level,
-      text: el.textContent ? el.textContent : '',
-      numbering: nstr,
-      html: html,
-      onClick: onClick(el),
-      type: 'header',
-      cellRef: cellRef,
-      hasChild: false,
-      index: index,
-      isRunning
-    });
-  }
-  return headings;
-}
-
-/**
- * Exports.
- */
-export { getRenderedHTMLHeadings };
diff --git a/packages/toc/src/generators/notebook/index.ts b/packages/toc/src/generators/notebook/index.ts
deleted file mode 100644
index a5eed589aa28..000000000000
--- a/packages/toc/src/generators/notebook/index.ts
+++ /dev/null
@@ -1,374 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import {
-  Cell,
-  CodeCell,
-  CodeCellModel,
-  ICellModel,
-  MARKDOWN_HEADING_COLLAPSED,
-  MarkdownCell
-} from '@jupyterlab/cells';
-import {
-  INotebookTracker,
-  NotebookActions,
-  NotebookPanel
-} from '@jupyterlab/notebook';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { TableOfContents } from '../../toc';
-import { INotebookHeading } from '../../utils/headings';
-import { isDOM } from '../../utils/is_dom';
-import { isMarkdown } from '../../utils/is_markdown';
-import { appendHeading } from './append_heading';
-import { appendMarkdownHeading } from './append_markdown_heading';
-import { getCodeCellHeading } from './get_code_cell_heading';
-import { getLastHeadingLevel } from './get_last_heading_level';
-import { getMarkdownHeadings } from './get_markdown_heading';
-import { getRenderedHTMLHeadings } from './get_rendered_html_heading';
-import { OptionsManager } from './options_manager';
-import { render } from './render';
-import { toolbar } from './toolbar_generator';
-import { ISettingRegistry } from '@jupyterlab/settingregistry';
-import { ISignal } from '@lumino/signaling';
-import { RunningStatus } from '../../utils/headings';
-import { TableOfContentsRegistry } from '../../registry';
-
-/**
- * Returns a ToC generator for notebooks.
- *
- * @param tracker - notebook tracker
- * @param widget - table of contents widget
- * @param sanitizer - HTML sanitizer
- * @param translator - Language translator
- * @param settings - advanced settings for toc extension
- * @returns ToC generator capable of parsing notebooks
- */
-export function createNotebookGenerator(
-  tracker: INotebookTracker,
-  widget: TableOfContents,
-  sanitizer: ISanitizer,
-  translator?: ITranslator,
-  settings?: ISettingRegistry.ISettings
-): Registry.IGenerator<NotebookPanel> {
-  return new NotebookGenerator(
-    tracker,
-    widget,
-    sanitizer,
-    translator,
-    settings
-  );
-}
-
-class NotebookGenerator implements Registry.IGenerator<NotebookPanel> {
-  /**
-   * Notebook Table of Content Generator constructor
-   *
-   * @param tracker - notebook tracker
-   * @param widget - table of contents widget
-   * @param sanitizer - HTML sanitizer
-   * @param translator - Language translator
-   * @param settings - advanced settings for toc extension
-   */
-  constructor(
-    tracker: INotebookTracker,
-    widget: TableOfContents,
-    sanitizer: ISanitizer,
-    translator?: ITranslator,
-    settings?: ISettingRegistry.ISettings
-  ) {
-    this.sanitizer = sanitizer;
-    this.tracker = tracker;
-    this.widget = widget;
-    this._runningCells = new Array<Cell>();
-
-    let numberingH1 = true;
-    let includeOutput = true;
-    let syncCollapseState = false;
-    if (settings) {
-      numberingH1 = settings.composite.numberingH1 as boolean;
-      includeOutput = settings.composite.includeOutput as boolean;
-      syncCollapseState = settings.composite.syncCollapseState as boolean;
-    }
-    const options = (this.options = new OptionsManager(widget, tracker, {
-      numbering: false,
-      numberingH1: numberingH1,
-      includeOutput: includeOutput,
-      syncCollapseState: syncCollapseState,
-      sanitizer: sanitizer,
-      translator: translator || nullTranslator
-    }));
-    if (settings) {
-      settings.changed.connect(() => {
-        options.numberingH1 = settings.composite.numberingH1 as boolean;
-        options.includeOutput = settings.composite.includeOutput as boolean;
-        options.syncCollapseState = settings.composite
-          .syncCollapseState as boolean;
-      });
-    }
-    tracker.activeCellChanged.connect(
-      (sender: INotebookTracker, args: Cell<ICellModel>) => {
-        widget.update();
-      }
-    );
-    NotebookActions.executionScheduled.connect((_, args) => {
-      if (!this._runningCells.includes(args.cell)) {
-        this._runningCells.push(args.cell);
-      }
-    });
-    NotebookActions.executed.connect((_, args) => {
-      this._runningCells.forEach((cell, index) => {
-        if (cell === args.cell) {
-          this._runningCells.splice(index, 1);
-        }
-      });
-    });
-  }
-
-  /**
-   * Signal to indicate that a collapse event happened to this heading
-   * within the ToC.
-   */
-  get collapseChanged(): ISignal<
-    TableOfContentsRegistry.IOptionsManager,
-    TableOfContentsRegistry.ICollapseChangedArgs
-  > {
-    return this.options.collapseChanged;
-  }
-
-  /**
-   * Returns a toolbar generator.
-   *
-   * @returns toolbar generator
-   */
-  toolbarGenerator() {
-    return toolbar(this.options, this.tracker);
-  }
-
-  /**
-   * Renders a table of contents item.
-   *
-   * @param item - heading to render
-   * @param toc - list of all headers to render
-   * @returns rendered item
-   */
-  itemRenderer = (
-    item: INotebookHeading,
-    toc: INotebookHeading[] = []
-  ): JSX.Element | null => {
-    return render(this.options, this.tracker, this.widget, item, toc);
-  };
-
-  /**
-   * Generates a table of contents.
-   *
-   * @param panel - notebook widget
-   * @returns a list of headings
-   */
-  generate(panel: NotebookPanel): INotebookHeading[] {
-    let headings: INotebookHeading[] = [];
-    let collapseLevel = -1;
-    let dict = {};
-
-    // Initialize a variable for keeping track of the previous heading:
-    let prev: INotebookHeading | null = null;
-
-    // Generate headings by iterating through all notebook cells...
-    for (let i = 0; i < panel.content.widgets.length; i++) {
-      let cell: Cell = panel.content.widgets[i];
-      let model = cell.model;
-      let cellCollapseMetadata = this.options.syncCollapseState
-        ? MARKDOWN_HEADING_COLLAPSED
-        : 'toc-hr-collapsed';
-      const collapsed =
-        (model.metadata.get(cellCollapseMetadata) as boolean) ?? false;
-
-      const isRunning = this._runningCells.includes(cell)
-        ? this._runningCells[0] === cell
-          ? RunningStatus.Running
-          : RunningStatus.Scheduled
-        : RunningStatus.Idle;
-
-      switch (model.type) {
-        case 'code': {
-          if (!this.widget || (this.widget && this.options.showCode)) {
-            const onClick = (line: number) => {
-              return () => {
-                panel.content.activeCellIndex = i;
-                cell.node.scrollIntoView();
-              };
-            };
-            const count = (cell as CodeCell).model.executionCount as
-              | number
-              | null;
-            const executionIndicator =
-              count ?? (isRunning !== RunningStatus.Idle ? '*' : ' ');
-            let executionCount = `[${executionIndicator}]: `;
-            let heading = getCodeCellHeading(
-              (model as CodeCellModel).value.text,
-              onClick,
-              executionCount,
-              getLastHeadingLevel(headings),
-              cell,
-              i,
-              isRunning
-            );
-            [headings, prev] = appendHeading(
-              headings,
-              heading,
-              prev,
-              collapseLevel,
-              this.options.filtered
-            );
-          }
-          if (this.options.includeOutput) {
-            // Iterate over the code cell outputs to check for Markdown or HTML from which we can generate ToC headings...
-            for (let j = 0; j < (model as CodeCellModel).outputs.length; j++) {
-              const m = (model as CodeCellModel).outputs.get(j);
-
-              let dtypes = Object.keys(m.data);
-              dtypes = dtypes.filter(t => isMarkdown(t) || isDOM(t));
-              if (!dtypes.length) {
-                continue;
-              }
-              const onClick = (el: Element) => {
-                return () => {
-                  panel.content.activeCellIndex = i;
-                  panel.content.mode = 'command';
-                  el.scrollIntoView();
-                };
-              };
-              let htmlHeadings = getRenderedHTMLHeadings(
-                (cell as CodeCell).outputArea.widgets[j].node,
-                onClick,
-                this.sanitizer,
-                dict,
-                getLastHeadingLevel(headings),
-                this.options.numbering,
-                this.options.numberingH1,
-                cell,
-                i,
-                isRunning
-              );
-              for (const heading of htmlHeadings) {
-                [headings, prev, collapseLevel] = appendMarkdownHeading(
-                  heading,
-                  headings,
-                  prev,
-                  collapseLevel,
-                  this.options.filtered,
-                  collapsed,
-                  this.options.showMarkdown,
-                  cellCollapseMetadata
-                );
-              }
-            }
-          }
-
-          break;
-        }
-        case 'markdown': {
-          let mcell = cell as MarkdownCell;
-          let heading: INotebookHeading | undefined;
-          let lastLevel = getLastHeadingLevel(headings);
-
-          // If the cell is rendered, generate the ToC items from the HTML...
-          if (mcell.rendered && !mcell.inputHidden) {
-            const onClick = (el: Element) => {
-              return () => {
-                if (!mcell.rendered) {
-                  panel.content.activeCellIndex = i;
-                  el.scrollIntoView();
-                } else {
-                  panel.content.mode = 'command';
-                  cell.node.scrollIntoView();
-                  panel.content.activeCellIndex = i;
-                }
-              };
-            };
-            const htmlHeadings = getRenderedHTMLHeadings(
-              cell.node,
-              onClick,
-              this.sanitizer,
-              dict,
-              lastLevel,
-              this.options.numbering,
-              this.options.numberingH1,
-              cell,
-              i,
-              isRunning
-            );
-            for (heading of htmlHeadings) {
-              [headings, prev, collapseLevel] = appendMarkdownHeading(
-                heading,
-                headings,
-                prev,
-                collapseLevel,
-                this.options.filtered,
-                collapsed,
-                this.options.showMarkdown,
-                cellCollapseMetadata
-              );
-            }
-            // If not rendered, generate ToC items from the cell text...
-          } else {
-            const onClick = (line: number) => {
-              return () => {
-                panel.content.activeCellIndex = i;
-                cell.node.scrollIntoView();
-              };
-            };
-            const markdownHeadings = getMarkdownHeadings(
-              model!.value.text,
-              onClick,
-              dict,
-              lastLevel,
-              cell,
-              i,
-              isRunning
-            );
-            for (heading of markdownHeadings) {
-              [headings, prev, collapseLevel] = appendMarkdownHeading(
-                heading,
-                headings,
-                prev,
-                collapseLevel,
-                this.options.filtered,
-                collapsed,
-                this.options.showMarkdown,
-                cellCollapseMetadata
-              );
-            }
-          }
-
-          break;
-        }
-      }
-
-      // Must be done afterwards as `heading.hasChild` needs to be up to date.
-      const lastHeading = headings[headings.length - 1];
-      if (lastHeading) {
-        lastHeading.isRunning = Math.max(lastHeading.isRunning, isRunning);
-      }
-    }
-    return headings;
-  }
-
-  /**
-   * Boolean indicating whether a document uses LaTeX typesetting.
-   */
-  readonly usesLatex: true;
-  /**
-   * Options manager
-   */
-  readonly options: OptionsManager;
-  /**
-   * Widget instance tracker.
-   */
-  readonly tracker: INotebookTracker;
-
-  protected readonly sanitizer: ISanitizer;
-  protected readonly widget: TableOfContents;
-  private _runningCells: Cell[];
-}
diff --git a/packages/toc/src/generators/notebook/is_heading_filtered.ts b/packages/toc/src/generators/notebook/is_heading_filtered.ts
deleted file mode 100644
index c79cfcbde4dc..000000000000
--- a/packages/toc/src/generators/notebook/is_heading_filtered.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookHeading } from '../../utils/headings';
-
-/**
- * Returns a boolean indicating whether a heading is filtered out by selected tags.
- *
- * @private
- * @param heading - notebook heading
- * @param tags - list of tags
- * @returns boolean indicating whether a heading is filtered
- */
-function isHeadingFiltered(heading: INotebookHeading, tags: string[]): boolean {
-  if (tags.length === 0) {
-    return false;
-  }
-  if (heading && heading.cellRef) {
-    let meta = heading.cellRef.model.metadata;
-    let ctags = meta.get('tags') as string[];
-    if (ctags) {
-      for (let j = 0; j < ctags.length; j++) {
-        let name = ctags[j];
-        for (let k = 0; k < tags.length; k++) {
-          if (tags[k] === name) {
-            return false;
-          }
-        }
-      }
-    }
-  }
-  return true;
-}
-
-/**
- * Exports.
- */
-export { isHeadingFiltered };
diff --git a/packages/toc/src/generators/notebook/options_manager.ts b/packages/toc/src/generators/notebook/options_manager.ts
deleted file mode 100644
index 34873ae45347..000000000000
--- a/packages/toc/src/generators/notebook/options_manager.ts
+++ /dev/null
@@ -1,305 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ISanitizer } from '@jupyterlab/apputils';
-import { INotebookTracker } from '@jupyterlab/notebook';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
-import { ISignal, Signal } from '@lumino/signaling';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { TableOfContents } from '../../toc';
-import { TagsToolComponent } from './tagstool';
-
-/**
- * Interface describing constructor options.
- */
-interface IOptions {
-  /**
-   * Boolean indicating whether items should be numbered.
-   */
-  numbering: boolean;
-
-  /**
-   * Boolean indicating whether h1 headers should be numbered.
-   */
-  numberingH1: boolean;
-
-  /**
-   * Boolean indicating whether cell output should be included in headings.
-   */
-  includeOutput: boolean;
-  /**
-   * Boolean indicating whether notebook headers should collapse with ToC headers and vice versa
-   */
-  syncCollapseState: boolean;
-  /**
-   * HTML sanitizer.
-   */
-  sanitizer: ISanitizer;
-
-  /**
-   * Tag tool component.
-   */
-  tagTool?: TagsToolComponent;
-
-  /**
-   * The application language translator.
-   */
-  translator?: ITranslator;
-}
-
-/**
- * Class for managing notebook ToC generator options.
- *
- * @private
- */
-class OptionsManager implements Registry.IOptionsManager {
-  /**
-   * Returns an options manager.
-   *
-   * @param widget - table of contents widget
-   * @param notebook - notebook tracker
-   * @param options - generator options
-   * @returns options manager
-   */
-  constructor(
-    widget: TableOfContents,
-    notebook: INotebookTracker,
-    options: IOptions
-  ) {
-    this._numbering = options.numbering;
-    this._numberingH1 = options.numberingH1;
-    this._includeOutput = options.includeOutput;
-    this._syncCollapseState = options.syncCollapseState;
-    this._widget = widget;
-    this._notebook = notebook;
-    this.sanitizer = options.sanitizer;
-    this.storeTags = [];
-    this.translator = options.translator || nullTranslator;
-    this._collapseChanged = new Signal<this, Registry.ICollapseChangedArgs>(
-      this
-    );
-  }
-
-  /**
-   * HTML sanitizer.
-   */
-  readonly sanitizer: ISanitizer;
-
-  /**
-   * Gets/sets the tag tool component.
-   */
-  set tagTool(tagTool: TagsToolComponent | null) {
-    this._tagTool = tagTool;
-  }
-
-  get tagTool() {
-    return this._tagTool;
-  }
-
-  /**
-   * Sets notebook meta data.
-   */
-  set notebookMetadata(value: [string, any]) {
-    if (this._notebook.currentWidget != null) {
-      this._notebook.currentWidget.model!.metadata.set(value[0], value[1]);
-    }
-  }
-
-  /**
-   * Gets/sets ToC generator numbering.
-   */
-  set numbering(value: boolean) {
-    this._numbering = value;
-    this._widget.update();
-    this.notebookMetadata = ['toc-autonumbering', this._numbering];
-  }
-
-  get numbering() {
-    return this._numbering;
-  }
-
-  /**
-   * Gets/sets ToC generator numbering h1 headers.
-   */
-  set numberingH1(value: boolean) {
-    if (this._numberingH1 != value) {
-      this._numberingH1 = value;
-      this._widget.update();
-    }
-  }
-
-  get numberingH1() {
-    return this._numberingH1;
-  }
-
-  /**
-   * Toggles whether cell outputs should be included in headings.
-   */
-  set includeOutput(value: boolean) {
-    if (this._includeOutput != value) {
-      this._includeOutput = value;
-      this._widget.update();
-    }
-  }
-
-  get includeOutput() {
-    return this._includeOutput;
-  }
-  /**
-   * Gets/sets option for ToC heading collapsing to be reflected in Notebook and vice versa
-   */
-  set syncCollapseState(value: boolean) {
-    if (this._syncCollapseState != value) {
-      this._syncCollapseState = value;
-      this._widget.update();
-    }
-  }
-
-  get syncCollapseState() {
-    return this._syncCollapseState;
-  }
-
-  /**
-   * Toggles whether to show code previews in the table of contents.
-   */
-  set showCode(value: boolean) {
-    this._showCode = value;
-    this.notebookMetadata = ['toc-showcode', this._showCode];
-    this._widget.update();
-  }
-
-  get showCode() {
-    return this._showCode;
-  }
-
-  /**
-   * Toggles whether to show Markdown previews in the table of contents.
-   */
-  set showMarkdown(value: boolean) {
-    this._showMarkdown = value;
-    this.notebookMetadata = ['toc-showmarkdowntxt', this._showMarkdown];
-    this._widget.update();
-  }
-
-  get showMarkdown() {
-    return this._showMarkdown;
-  }
-
-  /**
-   * Signal emitted when a "collapse" twist button is pressed in the ToC
-   */
-  get collapseChanged(): ISignal<this, Registry.ICollapseChangedArgs> {
-    return this._collapseChanged;
-  }
-
-  /**
-   * Toggles whether to show tags in the table of contents.
-   */
-  set showTags(value: boolean) {
-    this._showTags = value;
-    this.notebookMetadata = ['toc-showtags', this._showTags];
-    this._widget.update();
-  }
-
-  get showTags() {
-    return this._showTags;
-  }
-
-  /**
-   * Returns a list of selected tags.
-   */
-  get filtered() {
-    if (this.tagTool) {
-      this._filtered = this.tagTool.filtered;
-    } else if (this.storeTags.length > 0) {
-      this._filtered = this.storeTags;
-    } else {
-      this._filtered = [];
-    }
-    return this._filtered;
-  }
-
-  /**
-   * Gets/sets a pre-rendered a toolbar.
-   */
-  set preRenderedToolbar(value: any) {
-    this._preRenderedToolbar = value;
-  }
-
-  get preRenderedToolbar() {
-    return this._preRenderedToolbar;
-  }
-
-  /**
-   * Updates a table of contents widget.
-   */
-  updateWidget() {
-    this._widget.update();
-  }
-
-  /**
-   * Updates a table of contents widget and
-   * emits a signal in case an extension wants
-   * to perform an action when the collapse button
-   * is pressed.
-   */
-  updateAndCollapse(args: Registry.ICollapseChangedArgs) {
-    this._collapseChanged.emit(args);
-    this._widget.update();
-  }
-
-  /**
-   * Initializes options.
-   *
-   * ## Notes
-   *
-   * -  This will **not** change notebook meta-data.
-   *
-   * @param numbering - boolean indicating whether to number items
-   * @param numberingH1 - boolean indicating whether to number first level items
-   * @param includeOutput - boolean indicating whether cell outputs should be included in headings
-   * @param syncCollapseState - boolean indicating whether collapsing in ToC should be reflected in Notebook and vice versa
-   * @param showCode - boolean indicating whether to show code previews
-   * @param showMarkdown - boolean indicating whether to show Markdown previews
-   * @param showTags - boolean indicating whether to show tags
-   */
-  initializeOptions(
-    numbering: boolean,
-    numberingH1: boolean,
-    includeOutput: boolean,
-    syncCollapseState: boolean,
-    showCode: boolean,
-    showMarkdown: boolean,
-    showTags: boolean
-  ) {
-    this._numbering = numbering;
-    this._numberingH1 = numberingH1;
-    this._includeOutput = includeOutput;
-    this._syncCollapseState = syncCollapseState;
-    this._showCode = showCode;
-    this._showMarkdown = showMarkdown;
-    this._showTags = showTags;
-    this._widget.update();
-  }
-
-  private _preRenderedToolbar: any = null;
-  private _filtered: string[] = [];
-  private _numbering: boolean;
-  private _numberingH1: boolean;
-  private _includeOutput: boolean;
-  private _syncCollapseState: boolean;
-  private _showCode = false;
-  private _showMarkdown = false;
-  private _showTags = false;
-  private _notebook: INotebookTracker;
-  private _widget: TableOfContents;
-  private _collapseChanged: Signal<this, Registry.ICollapseChangedArgs>;
-  private _tagTool: TagsToolComponent | null = null;
-  translator: ITranslator; // FIXME-TRANS:
-  storeTags: string[];
-}
-
-/**
- * Exports.
- */
-export { OptionsManager };
diff --git a/packages/toc/src/generators/notebook/render.tsx b/packages/toc/src/generators/notebook/render.tsx
deleted file mode 100644
index 44d888aad28f..000000000000
--- a/packages/toc/src/generators/notebook/render.tsx
+++ /dev/null
@@ -1,251 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { MARKDOWN_HEADING_COLLAPSED } from '@jupyterlab/cells';
-import { INotebookTracker, NotebookActions } from '@jupyterlab/notebook';
-import { classes, ellipsesIcon } from '@jupyterlab/ui-components';
-import { ElementExt } from '@lumino/domutils';
-import * as React from 'react';
-import { TableOfContents } from '../..';
-import { INotebookHeading, RunningStatus } from '../../utils/headings';
-import { sanitizerOptions } from '../../utils/sanitizer_options';
-import { CodeComponent } from './codemirror';
-import { OptionsManager } from './options_manager';
-
-/**
- * Class name of the toc item list.
- *
- * @private
- */
-const TOC_TREE_CLASS = 'jp-TableOfContents-content';
-
-/**
- * Renders a notebook table of contents item.
- *
- * @param options - generator options
- * @param tracker - notebook tracker
- * @param item - notebook heading
- * @param toc - current list of notebook headings
- * @returns rendered item
- */
-export function render(
-  options: OptionsManager,
-  tracker: INotebookTracker,
-  widget: TableOfContents,
-  item: INotebookHeading,
-  toc: INotebookHeading[] = []
-): JSX.Element | null {
-  if (item.type === 'markdown' || item.type === 'header') {
-    const fontSizeClass =
-      item.type === 'header'
-        ? `toc-level-size-${item.level}`
-        : 'toc-level-size-default';
-    const numbering = item.numbering && options.numbering ? item.numbering : '';
-    const cellCollapseMetadata = options.syncCollapseState
-      ? MARKDOWN_HEADING_COLLAPSED
-      : 'toc-hr-collapsed';
-
-    if (item.type === 'header' || options.showMarkdown) {
-      const header = item.html ? (
-        <span
-          dangerouslySetInnerHTML={{
-            __html:
-              numbering +
-              options.sanitizer.sanitize(item.html, sanitizerOptions)
-          }}
-          className={`${item.type}-cell toc-cell-item`}
-        />
-      ) : (
-        <span className={`${item.type}-cell toc-cell-item`}>
-          {numbering + item.text}
-        </span>
-      );
-
-      if (item.type === 'header') {
-        let button = (
-          <div
-            className="jp-Collapser p-Widget lm-Widget"
-            onClick={(event: any) => {
-              event.stopPropagation();
-              onClick(tracker, cellCollapseMetadata, item);
-            }}
-          >
-            <div className="toc-Collapser-child" />
-          </div>
-        );
-
-        let collapsed;
-        if (item.cellRef!.model.metadata.has(cellCollapseMetadata)) {
-          collapsed = item.cellRef!.model.metadata.get(
-            cellCollapseMetadata
-          ) as boolean;
-        }
-        let ellipseButton = collapsed ? (
-          <div
-            className="toc-Ellipses"
-            onClick={(event: any) => {
-              event.stopPropagation();
-              onClick(tracker, cellCollapseMetadata, item);
-            }}
-          >
-            <ellipsesIcon.react />
-          </div>
-        ) : null;
-
-        return (
-          <NotebookHeading
-            isActive={
-              tracker.activeCell === item.cellRef ||
-              previousHeader(tracker, item, toc)
-            }
-            className={
-              'toc-entry-holder ' +
-              fontSizeClass +
-              (tracker.activeCell === item.cellRef
-                ? ' toc-active-cell'
-                : previousHeader(tracker, item, toc)
-                ? ' toc-active-cell'
-                : '')
-            }
-            isRunning={item.isRunning}
-            area={widget.node.querySelector(`.${TOC_TREE_CLASS}`)}
-          >
-            {button}
-            {header}
-            {ellipseButton}
-          </NotebookHeading>
-        );
-      } else {
-        return header;
-      }
-    }
-  }
-
-  if (options.showCode && item.type === 'code') {
-    // Render code cells:
-    return (
-      <div className="toc-code-cell-div">
-        <div className="toc-code-cell-prompt">{item.prompt}</div>
-        <span className={'toc-code-span'}>
-          <CodeComponent sanitizer={options.sanitizer} heading={item} />
-        </span>
-      </div>
-    );
-  }
-
-  return null;
-
-  /**
-   * Callback invoked upon encountering a "click" event.
-   *
-   * @private
-   * @param heading - notebook heading that was clicked
-   */
-
-  function onClick(
-    tracker: INotebookTracker,
-    cellCollapseMetadata: string,
-    heading?: INotebookHeading
-  ) {
-    let collapsed = false;
-    let syncCollapseState = options.syncCollapseState;
-    if (heading!.cellRef!.model.metadata.get(cellCollapseMetadata)) {
-      collapsed = heading!.cellRef!.model.metadata.get(
-        cellCollapseMetadata
-      ) as boolean;
-    }
-    if (heading) {
-      if (syncCollapseState) {
-        // if collapse state is synced, update state here
-        if (tracker.currentWidget) {
-          NotebookActions.setHeadingCollapse(
-            heading!.cellRef!,
-            !collapsed,
-            tracker.currentWidget.content
-          );
-        }
-      } else {
-        if (collapsed) {
-          heading!.cellRef!.model.metadata.delete(cellCollapseMetadata);
-        } else {
-          heading!.cellRef!.model.metadata.set(cellCollapseMetadata, true);
-        }
-      }
-      options.updateAndCollapse({
-        heading: heading,
-        collapsedState: collapsed,
-        tocType: 'notebook'
-      });
-    } else {
-      options.updateWidget();
-    }
-  }
-}
-
-/**
- * Used to find the nearest above heading to an active notebook cell
- *
- * @private
- * @param tracker - notebook tracker
- * @param item - notebook heading
- * @param toc - current list of notebook headings
- * @returns true if heading is nearest above a selected cell, otherwise false
- */
-function previousHeader(
-  tracker: INotebookTracker,
-  item: INotebookHeading,
-  toc: INotebookHeading[]
-) {
-  if (item.index > -1 || toc?.length) {
-    let activeCellIndex = tracker.currentWidget!.content.activeCellIndex;
-    let headerIndex = item.index;
-    // header index has to be less than the active cell index
-    if (headerIndex < activeCellIndex) {
-      let tocIndexOfNextHeader = toc.indexOf(item) + 1;
-      // return true if header is the last header
-      if (tocIndexOfNextHeader >= toc.length) {
-        return true;
-      }
-      // return true if the next header cells index is greater than the active cells index
-      let nextHeaderIndex = toc?.[tocIndexOfNextHeader].index;
-      if (nextHeaderIndex > activeCellIndex) {
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-type NotebookHeadingProps = React.PropsWithChildren<{
-  isActive: boolean;
-  className: string;
-  area: Element | null;
-  isRunning?: RunningStatus;
-}>;
-
-/**
- * React component for a single toc heading
- *
- * @private
- */
-function NotebookHeading(props: NotebookHeadingProps): JSX.Element {
-  const itemRef = React.useRef<HTMLDivElement>(null);
-  const isActive = props.isActive;
-  React.useEffect(() => {
-    if (isActive && itemRef.current && props.area) {
-      ElementExt.scrollIntoViewIfNeeded(
-        props.area,
-        itemRef.current.parentElement as Element
-      );
-    }
-  }, [isActive]);
-  return (
-    <div
-      ref={itemRef}
-      className={classes(props.className, isActive ? 'toc-active-cell' : '')}
-      data-running={props.isRunning}
-    >
-      {props.children}
-    </div>
-  );
-}
diff --git a/packages/toc/src/generators/notebook/tagstool/index.tsx b/packages/toc/src/generators/notebook/tagstool/index.tsx
deleted file mode 100644
index bbf56ea77835..000000000000
--- a/packages/toc/src/generators/notebook/tagstool/index.tsx
+++ /dev/null
@@ -1,298 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Cell } from '@jupyterlab/cells';
-import { INotebookTracker } from '@jupyterlab/notebook';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import * as React from 'react';
-import { OptionsManager } from '../options_manager';
-import { TagListComponent } from './tag_list';
-
-/**
- * Interface describing component properties.
- *
- * @private
- */
-interface IProperties {
-  /**
-   * List of tags.
-   */
-  tags: string[];
-
-  /**
-   * Notebook tracker.
-   */
-  tracker: INotebookTracker;
-
-  /**
-   * Notebook Generator options.
-   */
-  options: OptionsManager;
-
-  /**
-   * Input filter.
-   */
-  inputFilter: string[];
-
-  /**
-   * Language translator.
-   */
-  translator?: ITranslator;
-}
-
-/**
- * Interface describing component state.
- *
- * @private
- */
-interface IState {
-  /**
-   * List of selected tags.
-   */
-  selected: string[];
-}
-
-/**
- * Tag dropdown React component.
- *
- * @private
- */
-class TagsToolComponent extends React.Component<IProperties, IState> {
-  /**
-   * Returns a component.
-   *
-   * @param props - component properties
-   * @returns component
-   */
-  constructor(props: IProperties) {
-    super(props);
-    this.state = {
-      selected: this.props.inputFilter
-    };
-    const translator = this.props.translator || nullTranslator;
-    this._trans = translator.load('jupyterlab');
-  }
-
-  /**
-   * Changes the dropdown selection state.
-   *
-   * @param newState - new state
-   * @param add - boolean indicating whether to add to selection
-   */
-  changeSelectionState = (newState: string, add: boolean) => {
-    let tags = this.state.selected;
-    if (add) {
-      tags.push(newState);
-      this.setState({ selected: tags });
-      this.filterTags(tags);
-    } else {
-      let selected: string[] = [];
-      for (let i = 0; i < tags.length; i++) {
-        if (tags[i] !== newState) {
-          selected.push(tags[i]);
-        }
-      }
-      this.setState({ selected: selected });
-      this.filterTags(selected);
-    }
-  };
-
-  /**
-   * Returns a list of selected tags.
-   *
-   * @returns tag list
-   */
-  get filtered() {
-    return this.state.selected;
-  }
-
-  /**
-   * De-selects all tags in the dropdown and clear filters in the ToC.
-   */
-  deselectAll = () => {
-    this.setState({ selected: [] });
-    this.props.options.updateWidget();
-  };
-
-  /**
-   * Checks whether a cell has a provided tag.
-   *
-   * @param tag - tag
-   * @param cell - cell reference
-   * @returns boolean indicating whether a cell has a provided tag
-   */
-  containsTag(tag: string, cell: Cell) {
-    if (cell === null) {
-      return false;
-    }
-    let tagList = cell.model.metadata.get('tags') as string[];
-    if (tagList) {
-      for (let i = 0; i < tagList.length; i++) {
-        if (tagList[i] === tag) {
-          return true;
-        }
-      }
-      return false;
-    }
-  }
-
-  /**
-   * Select all the cells that contains all of the current tags and activates the first of those cells.
-   */
-
-  selectAllCellsWithCurrentTags = (): void => {
-    const tags = this.state.selected;
-    const panel = this.props.tracker.currentWidget;
-    const widgets = panel?.content.widgets;
-
-    panel?.content.deselectAll();
-
-    let changedActive = false;
-
-    widgets?.forEach((cell, ix) => {
-      const hasAllCurrentTags = tags.every(tag => this.containsTag(tag, cell));
-
-      if (hasAllCurrentTags) {
-        if (!changedActive) {
-          if (panel) {
-            panel.content.activeCellIndex = ix;
-          }
-          changedActive = true;
-        }
-        panel?.content.select(cell);
-      }
-    });
-  };
-
-  /**
-   * Filters the ToC by according to selected tags.
-   *
-   * @param selected - selected tags
-   */
-  filterTags = (selected: string[]) => {
-    this.setState({ selected });
-    this.props.options.updateWidget();
-  };
-
-  /**
-   * Updates filters.
-   */
-  updateFilters = () => {
-    let tmp: string[] = [];
-    let idx = 0;
-    let update = false;
-    for (let i = 0; i < this.state.selected.length; i++) {
-      if (this.props.tags.indexOf(this.state.selected[i] as string) > -1) {
-        tmp[idx] = this.state.selected[i];
-        idx += 1;
-      } else if (this.props.options.showTags === true) {
-        update = true;
-      }
-    }
-    if (update) {
-      this.filterTags(tmp);
-      this.setState({ selected: tmp });
-    }
-  };
-
-  /**
-   * Updates filters.
-   */
-  UNSAFE_componentWillUpdate() {
-    this.updateFilters();
-  }
-
-  /**
-   * Renders the interior of the tag dropdown.
-   *
-   * @returns rendered component
-   */
-  render() {
-    let jsx = (
-      <div className="toc-no-tags-div">
-        {this._trans.__('No Tags Available')}
-      </div>
-    );
-    let text;
-    if (this.state.selected.length === 0) {
-      text = (
-        <span className={'toc-filter-button-na'}>
-          {this._trans.__('Clear Filters')}
-        </span>
-      );
-    } else if (this.state.selected.length === 1) {
-      text = (
-        <span
-          className={'toc-filter-button'}
-          onClick={() => this.deselectAll()}
-        >
-          {' '}
-          Clear 1 Filter{' '}
-        </span>
-      );
-    } else {
-      text = (
-        <span
-          className={'toc-filter-button'}
-          onClick={() => this.deselectAll()}
-        >
-          {' '}
-          Clear {this.state.selected.length} Filters{' '}
-        </span>
-      );
-    }
-    let command;
-
-    if (this.state.selected.length === 0) {
-      command = (
-        <span
-          className={'toc-filter-button-na'}
-          role="text"
-          aria-label={this._trans.__('Select All Cells With Current Tags')}
-          title={this._trans.__('Select All Cells With Current Tags')}
-        >
-          {this._trans.__('Select All Cells With Current Tags')}
-        </span>
-      );
-    } else {
-      command = (
-        <span
-          className={'toc-filter-button'}
-          role="button"
-          aria-label={this._trans.__('Select All Cells With Current Tags')}
-          title={this._trans.__('Select All Cells With Current Tags')}
-          onClick={this.selectAllCellsWithCurrentTags}
-          onKeyDown={this.selectAllCellsWithCurrentTags}
-        >
-          {this._trans.__('Select All Cells With Current Tags')}
-        </span>
-      );
-    }
-
-    if (this.props.tags && this.props.tags.length > 0) {
-      jsx = (
-        <div className={'toc-tags-container'}>
-          <TagListComponent
-            tags={this.props.tags}
-            selectionStateHandler={this.changeSelectionState}
-            selectedTags={this.state.selected}
-          />
-          {text}
-          {command}
-        </div>
-      );
-    }
-    return jsx;
-  }
-
-  _trans: TranslationBundle;
-}
-
-/**
- * Exports.
- */
-export { TagsToolComponent };
diff --git a/packages/toc/src/generators/notebook/tagstool/tag.tsx b/packages/toc/src/generators/notebook/tagstool/tag.tsx
deleted file mode 100644
index 067e1505ae16..000000000000
--- a/packages/toc/src/generators/notebook/tagstool/tag.tsx
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-
-/**
- * Interface describing component properties.
- *
- * @private
- */
-interface IProperties {
-  /**
-   * Selection state callback.
-   *
-   * @param newState - new state
-   * @param add - boolean flag
-   */
-  selectionStateHandler: (newState: string, add: boolean) => void;
-
-  /**
-   * Selected tags.
-   */
-  selectedTags: string[];
-
-  /**
-   * Tag.
-   */
-  tag: string;
-}
-
-/**
- * Abstract class defining a React component containing one tag label.
- *
- * @private
- */
-abstract class TagComponent extends React.Component<IProperties> {
-  /**
-   * Returns a React component.
-   *
-   * @param props - properties
-   * @returns component
-   */
-  constructor(props: IProperties) {
-    super(props);
-  }
-
-  /**
-   * Renders a component.
-   *
-   * @returns rendered component
-   */
-  render() {
-    const tag = this.props.tag as string;
-    return (
-      <div>
-        <label className="toc-tag-label" key={new Date().toLocaleTimeString()}>
-          {tag}
-        </label>
-      </div>
-    );
-  }
-}
-
-/**
- * Exports.
- */
-export { TagComponent };
diff --git a/packages/toc/src/generators/notebook/tagstool/tag_list.tsx b/packages/toc/src/generators/notebook/tagstool/tag_list.tsx
deleted file mode 100644
index cb36182283f4..000000000000
--- a/packages/toc/src/generators/notebook/tagstool/tag_list.tsx
+++ /dev/null
@@ -1,124 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-import { TagComponent } from './tag';
-
-/**
- * Interface describing component properties.
- *
- * @private
- */
-interface IProperties {
-  /**
-   * Selection state handler.
-   *
-   * @param newState - new state
-   * @param add - boolean flag
-   */
-  selectionStateHandler: (newState: string, add: boolean) => void;
-
-  /**
-   * List of selected tags.
-   */
-  selectedTags: string[];
-
-  /**
-   * List of all tags.
-   */
-  tags: string[] | null;
-}
-
-/**
- * Interface describing component state.
- *
- * @private
- */
-interface IState {
-  /**
-   * List of selected tags.
-   */
-  selected: string[];
-}
-
-/**
- * Class for a React component that renders all tags in a list.
- *
- * @private
- */
-class TagListComponent extends React.Component<IProperties, IState> {
-  /**
-   * Returns a React component.
-   *
-   * @param props - properties
-   * @returns component
-   */
-  constructor(props: IProperties) {
-    super(props);
-    this.state = { selected: this.props.selectedTags };
-  }
-
-  /**
-   * Toggles whether a tag is selected when clicked.
-   *
-   * @param name - tag name
-   */
-  selectedTagWithName = (name: string) => {
-    if (this.props.selectedTags.indexOf(name) >= 0) {
-      this.props.selectionStateHandler(name, false);
-    } else {
-      this.props.selectionStateHandler(name, true);
-    }
-  };
-
-  /**
-   * Renders a tag component for each tag within a list of tags.
-   *
-   * @param tags - list of tags
-   */
-  renderTagComponents = (tags: string[]) => {
-    const selectedTags = this.props.selectedTags;
-    const selectedTagWithName = this.selectedTagWithName;
-    return tags.map((tag, index) => {
-      const tagClass =
-        selectedTags.indexOf(tag) >= 0
-          ? 'toc-selected-tag toc-tag'
-          : 'toc-unselected-tag toc-tag';
-      return (
-        <div
-          key={tag}
-          className={tagClass}
-          onClick={event => {
-            selectedTagWithName(tag);
-          }}
-          tabIndex={0}
-        >
-          <TagComponent
-            selectionStateHandler={this.props.selectionStateHandler}
-            selectedTags={this.props.selectedTags}
-            tag={tag}
-          />
-        </div>
-      );
-    });
-  };
-
-  /**
-   * Renders the list of tags in the ToC tags dropdown.
-   *
-   * @returns rendered list
-   */
-  render() {
-    let tags = this.props.tags;
-    let jsx = null;
-    if (tags) {
-      jsx = this.renderTagComponents(tags);
-    }
-    return <div className="toc-tag-holder">{jsx}</div>;
-  }
-}
-
-/**
- * Exports.
- */
-export { TagListComponent };
diff --git a/packages/toc/src/generators/notebook/toolbar_generator.tsx b/packages/toc/src/generators/notebook/toolbar_generator.tsx
deleted file mode 100644
index 6725ccb8b1ad..000000000000
--- a/packages/toc/src/generators/notebook/toolbar_generator.tsx
+++ /dev/null
@@ -1,295 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INotebookTracker } from '@jupyterlab/notebook';
-import { TranslationBundle } from '@jupyterlab/translation';
-import {
-  codeIcon,
-  markdownIcon,
-  numberingIcon,
-  tagIcon
-} from '@jupyterlab/ui-components';
-import { JSONValue } from '@lumino/coreutils';
-import * as React from 'react';
-import { OptionsManager } from './options_manager';
-import { TagsToolComponent } from './tagstool';
-
-/**
- * Interface describing toolbar properties.
- *
- * @private
- */
-interface IProperties {}
-
-/**
- * Interface describing toolbar state.
- *
- * @private
- */
-interface IState {
-  /**
-   * Boolean indicating whether to show code previews.
-   */
-  showCode: boolean;
-
-  /**
-   * Boolean indicating whether to show Markdown previews.
-   */
-  showMarkdown: boolean;
-
-  /**
-   * Boolean indicating whether to show tags.
-   */
-  showTags: boolean;
-
-  /**
-   * Boolean indicating whether to show numbering.
-   */
-  numbering: boolean;
-}
-
-/**
- * Returns a component for rendering a notebook table of contents toolbar.
- *
- * @private
- * @param options - generator options
- * @param tracker - notebook tracker
- * @returns toolbar component
- */
-function toolbar(options: OptionsManager, tracker: INotebookTracker) {
-  return class Toolbar extends React.Component<IProperties, IState> {
-    /**
-     * Returns a component for rendering a notebook table of contents toolbar.
-     *
-     * @param props - toolbar properties
-     * @returns toolbar component
-     */
-    constructor(props: IProperties) {
-      super(props);
-      this._trans = options.translator.load('jupyterlab');
-      this.tagTool = null;
-      this.state = {
-        showCode: true,
-        showMarkdown: false,
-        showTags: false,
-        numbering: false
-      };
-      if (tracker.currentWidget) {
-        // Read saved user settings in notebook meta data:
-        void tracker.currentWidget.context.ready.then(() => {
-          if (tracker.currentWidget) {
-            tracker.currentWidget.content.activeCellChanged.connect(() => {
-              options.updateWidget();
-            });
-            const numbering = tracker.currentWidget.model!.metadata.get(
-              'toc-autonumbering'
-            ) as boolean;
-            const showCode = tracker.currentWidget.model!.metadata.get(
-              'toc-showcode'
-            ) as boolean;
-            const showMarkdown = tracker.currentWidget.model!.metadata.get(
-              'toc-showmarkdowntxt'
-            ) as boolean;
-            const showTags = tracker.currentWidget.model!.metadata.get(
-              'toc-showtags'
-            ) as boolean;
-            options.initializeOptions(
-              numbering || options.numbering,
-              options.numberingH1,
-              options.includeOutput,
-              options.syncCollapseState,
-              showCode || options.showCode,
-              showMarkdown || options.showMarkdown,
-              showTags || options.showTags
-            );
-            this.setState({
-              showCode: options.showCode,
-              showMarkdown: options.showMarkdown,
-              showTags: options.showTags,
-              numbering: options.numbering
-            });
-            this.tags = [];
-          }
-        });
-      }
-    }
-
-    /**
-     * Toggle whether to show code previews.
-     */
-    toggleCode() {
-      options.showCode = !options.showCode;
-      this.setState({ showCode: options.showCode });
-    }
-
-    /**
-     * Toggle whether to show Markdown previews.
-     */
-    toggleMarkdown() {
-      options.showMarkdown = !options.showMarkdown;
-      this.setState({ showMarkdown: options.showMarkdown });
-    }
-
-    /**
-     * Toggle whether to number headings.
-     */
-    toggleNumbering() {
-      options.numbering = !options.numbering;
-      this.setState({ numbering: options.numbering });
-    }
-
-    /**
-     * Toggle tag dropdown.
-     */
-    toggleTagDropdown() {
-      if (options.showTags && this.tagTool) {
-        options.storeTags = this.tagTool.state.selected;
-      }
-      options.showTags = !options.showTags;
-      this.setState({ showTags: options.showTags });
-    }
-
-    /**
-     * Loads all document tags.
-     */
-    loadTags() {
-      const notebook = tracker.currentWidget;
-      if (notebook) {
-        const cells = notebook.model!.cells;
-        const tags = new Set<string>();
-        this.tags = [];
-        for (let i = 0; i < cells.length; i++) {
-          const cell = cells.get(i)!;
-          const list = cell.metadata.get('tags') as JSONValue;
-          if (Array.isArray(list)) {
-            list.forEach((tag: string) => tag && tags.add(tag));
-          }
-        }
-        this.tags = Array.from(tags);
-      }
-    }
-
-    /**
-     * Renders a toolbar.
-     *
-     * @returns rendered toolbar
-     */
-    render() {
-      const codeToggleIcon = (
-        <div
-          onClick={event => this.toggleCode()}
-          role="text"
-          aria-label={this._trans.__('Toggle Code Cells')}
-          title={this._trans.__('Toggle Code Cells')}
-          className={
-            this.state.showCode
-              ? 'toc-toolbar-code-icon toc-toolbar-icon-selected'
-              : 'toc-toolbar-code-icon toc-toolbar-icon'
-          }
-        >
-          <codeIcon.react />
-        </div>
-      );
-
-      const markdownToggleIcon = (
-        <div
-          onClick={event => this.toggleMarkdown()}
-          role="text"
-          aria-label={this._trans.__('Toggle Markdown Text Cells')}
-          title={this._trans.__('Toggle Markdown Text Cells')}
-          className={
-            this.state.showMarkdown
-              ? 'toc-toolbar-icon-selected'
-              : 'toc-toolbar-icon'
-          }
-        >
-          <markdownIcon.react />
-        </div>
-      );
-
-      const numberingToggleIcon = (
-        <div
-          onClick={event => this.toggleNumbering()}
-          role="text"
-          aria-label={this._trans.__('Toggle Auto-Numbering')}
-          title={this._trans.__('Toggle Auto-Numbering')}
-          className={
-            this.state.numbering
-              ? 'toc-toolbar-icon-selected'
-              : 'toc-toolbar-icon'
-          }
-        >
-          <numberingIcon.react />
-        </div>
-      );
-
-      let tagDropdown = <div />;
-      let tagToggleIcon = (
-        <div
-          role="text"
-          aria-label={this._trans.__('Show Tags Menu')}
-          title={this._trans.__('Show Tags Menu')}
-          className={
-            this.state.showTags
-              ? 'toc-toolbar-icon-selected'
-              : 'toc-toolbar-icon'
-          }
-        >
-          <tagIcon.react />
-        </div>
-      );
-      if (this.state.showTags) {
-        this.loadTags();
-        const tagTool = (
-          <TagsToolComponent
-            tags={this.tags}
-            tracker={tracker}
-            options={options}
-            inputFilter={options.storeTags}
-            translator={options.translator}
-            ref={tagTool => (this.tagTool = tagTool)}
-          />
-        );
-        options.tagTool = this.tagTool;
-        tagDropdown = <div className={'toc-tag-dropdown'}> {tagTool} </div>;
-      }
-
-      return (
-        <div>
-          <div className={'toc-toolbar'}>
-            {codeToggleIcon}
-            {markdownToggleIcon}
-            {numberingToggleIcon}
-            <div
-              className={'toc-tag-dropdown-button'}
-              onClick={event => this.toggleTagDropdown()}
-            >
-              {tagToggleIcon}
-            </div>
-          </div>
-          {tagDropdown}
-        </div>
-      );
-    }
-
-    /**
-     * List of tags.
-     */
-    tags: string[];
-
-    /**
-     * Tag tool component.
-     */
-    tagTool: TagsToolComponent | null;
-
-    /**
-     * Translation bundle.
-     */
-    _trans: TranslationBundle;
-  };
-}
-
-/**
- * Exports.
- */
-export { toolbar };
diff --git a/packages/toc/src/generators/python/index.ts b/packages/toc/src/generators/python/index.ts
deleted file mode 100644
index a1d327911975..000000000000
--- a/packages/toc/src/generators/python/index.ts
+++ /dev/null
@@ -1,101 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { IDocumentWidget } from '@jupyterlab/docregistry';
-import { FileEditor, IEditorTracker } from '@jupyterlab/fileeditor';
-import { TableOfContentsRegistry as Registry } from '../../registry';
-import { IHeading } from '../../utils/headings';
-import { render } from './render';
-
-/**
- * Generates a table of contents.
- *
- * @private
- * @param editor - editor widget
- * @returns a list of headings
- */
-function generate(editor: IDocumentWidget<FileEditor>): IHeading[] {
-  // Split the text into lines:
-  let lines = editor.content.model.value.text.split('\n') as Array<any>;
-
-  // Iterate over the lines to get the heading level and text for each line:
-  let headings: IHeading[] = [];
-  let processingImports = false;
-  for (let i = 0; i < lines.length; i++) {
-    let line = lines[i].trim();
-    if (line.indexOf('def ') === 0) {
-      processingImports = false;
-      headings.push({
-        text: line.slice(0, -1),
-        level: 2,
-        onClick: onClick(i)
-      });
-    } else if (line.indexOf('class ') === 0) {
-      processingImports = false;
-      headings.push({
-        text: line.slice(0, -1),
-        level: 1,
-        onClick: onClick(i)
-      });
-    } else if (line.indexOf('import ') == 0 && !processingImports) {
-      processingImports = true;
-      headings.push({
-        text: line,
-        level: 2,
-        onClick: onClick(i)
-      });
-    }
-  }
-  return headings;
-
-  /**
-   * Returns a "click" handler.
-   *
-   * @private
-   * @param line - line number
-   * @returns click handler
-   */
-  function onClick(line: number) {
-    return () => {
-      editor.content.editor.setCursorPosition({
-        line: line,
-        column: 0
-      });
-    };
-  }
-}
-
-/**
- * Returns a boolean indicating whether this ToC generator is enabled.
- *
- * @private
- * @param editor - editor widget
- * @returns boolean indicating whether this ToC generator is enabled
- */
-function isEnabled(editor: IDocumentWidget<FileEditor>) {
-  let mime = editor.content.model.mimeType;
-  return mime === 'application/x-python-code' || mime === 'text/x-python';
-}
-
-/**
- * Returns a ToC generator for Python files.
- *
- * @private
- * @param tracker - file editor tracker
- * @returns ToC generator capable of parsing Python files
- */
-function createPythonGenerator(
-  tracker: IEditorTracker
-): Registry.IGenerator<IDocumentWidget<FileEditor>> {
-  return {
-    tracker,
-    isEnabled: isEnabled,
-    itemRenderer: render,
-    generate: generate
-  };
-}
-
-/**
- * Exports.
- */
-export { createPythonGenerator };
diff --git a/packages/toc/src/generators/python/render.tsx b/packages/toc/src/generators/python/render.tsx
deleted file mode 100644
index 761707d5c49a..000000000000
--- a/packages/toc/src/generators/python/render.tsx
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-import { IHeading } from '../../utils/headings';
-
-/**
- * Renders a Python table of contents item.
- *
- * @private
- * @param item - numbered heading
- * @returns rendered item
- */
-function render(item: IHeading) {
-  let fontSizeClass = 'toc-level-size-' + item.level;
-
-  return (
-    <div className={fontSizeClass + ' toc-entry-holder'}>
-      <div className="jp-Collapser p-Widget lm-Widget">
-        <div className="toc-Collapser-child"></div>
-      </div>
-      <span className="header-cell toc-cell-item"> {item.text} </span>
-    </div>
-  );
-}
-
-/**
- * Exports.
- */
-export { render };
diff --git a/packages/toc/src/index.ts b/packages/toc/src/index.ts
index 076d4940ae09..9312542d8a55 100644
--- a/packages/toc/src/index.ts
+++ b/packages/toc/src/index.ts
@@ -5,9 +5,14 @@
  * @module toc
  */
 
-// Note: keep in alphabetical order...
-export * from './generators';
+export * from './factory';
+export * from './model';
+export * from './panel';
 export * from './registry';
-export * from './toc';
-export * from './toc_item';
-export * from './utils/headings';
+export * from './treeview';
+export * from './tocitem';
+export * from './toctree';
+export * from './tokens';
+export * from './tracker';
+// Namespace the utils
+export * as TableOfContentsUtils from './utils';
diff --git a/packages/toc/src/model.ts b/packages/toc/src/model.ts
new file mode 100644
index 000000000000..7f196401e860
--- /dev/null
+++ b/packages/toc/src/model.ts
@@ -0,0 +1,288 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { VDomModel } from '@jupyterlab/ui-components';
+import { JSONExt } from '@lumino/coreutils';
+import { ISignal, Signal } from '@lumino/signaling';
+import { Widget } from '@lumino/widgets';
+import { TableOfContents } from './tokens';
+
+/**
+ * Abstract table of contents model.
+ */
+export abstract class TableOfContentsModel<
+    H extends TableOfContents.IHeading,
+    T extends Widget = Widget
+  >
+  extends VDomModel
+  implements TableOfContents.IModel<H>
+{
+  /**
+   * Constructor
+   *
+   * @param widget The widget to search in
+   * @param configuration Default model configuration
+   */
+  constructor(
+    protected widget: T,
+    configuration?: TableOfContents.IConfig
+  ) {
+    super();
+    this._activeHeading = null;
+    this._activeHeadingChanged = new Signal<
+      TableOfContentsModel<H, T>,
+      H | null
+    >(this);
+    this._collapseChanged = new Signal<TableOfContentsModel<H, T>, H>(this);
+    this._configuration = configuration ?? { ...TableOfContents.defaultConfig };
+    this._headings = new Array<H>();
+    this._headingsChanged = new Signal<TableOfContentsModel<H, T>, void>(this);
+    this._isActive = false;
+    this._isRefreshing = false;
+    this._needsRefreshing = false;
+  }
+
+  /**
+   * Current active entry.
+   *
+   * @returns table of contents active entry
+   */
+  get activeHeading(): H | null {
+    return this._activeHeading;
+  }
+
+  /**
+   * Signal emitted when the active heading changes.
+   */
+  get activeHeadingChanged(): ISignal<TableOfContents.IModel<H>, H | null> {
+    return this._activeHeadingChanged;
+  }
+
+  /**
+   * Signal emitted when a table of content section collapse state changes.
+   */
+  get collapseChanged(): ISignal<TableOfContents.IModel<H>, H | null> {
+    return this._collapseChanged;
+  }
+
+  /**
+   * Model configuration
+   */
+  get configuration(): TableOfContents.IConfig {
+    return this._configuration;
+  }
+
+  /**
+   * Type of document supported by the model.
+   *
+   * #### Notes
+   * A `data-document-type` attribute with this value will be set
+   * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+   */
+  abstract readonly documentType: string;
+
+  /**
+   * List of headings.
+   *
+   * @returns table of contents list of headings
+   */
+  get headings(): H[] {
+    return this._headings;
+  }
+
+  /**
+   * Signal emitted when the headings changes.
+   */
+  get headingsChanged(): ISignal<TableOfContents.IModel<H>, void> {
+    return this._headingsChanged;
+  }
+
+  /**
+   * Whether the model is active or not.
+   *
+   * #### Notes
+   * An active model means it is displayed in the table of contents.
+   * This can be used by subclass to limit updating the headings.
+   */
+  get isActive(): boolean {
+    return this._isActive;
+  }
+  set isActive(v: boolean) {
+    this._isActive = v;
+    // Refresh on activation expect if it is always active
+    //  => a ToC model is always active e.g. when displaying numbering in the document
+    if (this._isActive && !this.isAlwaysActive) {
+      this.refresh().catch(reason => {
+        console.error('Failed to refresh ToC model.', reason);
+      });
+    }
+  }
+
+  /**
+   * Whether the model gets updated even if the table of contents panel
+   * is hidden or not.
+   *
+   * #### Notes
+   * For example, ToC models use to add title numbering will
+   * set this to true.
+   */
+  protected get isAlwaysActive(): boolean {
+    return false;
+  }
+
+  /**
+   * List of configuration options supported by the model.
+   */
+  get supportedOptions(): (keyof TableOfContents.IConfig)[] {
+    return ['maximalDepth'];
+  }
+
+  /**
+   * Document title
+   */
+  get title(): string | undefined {
+    return this._title;
+  }
+  set title(v: string | undefined) {
+    if (v !== this._title) {
+      this._title = v;
+      this.stateChanged.emit();
+    }
+  }
+
+  /**
+   * Abstract function that will produce the headings for a document.
+   *
+   * @returns The list of new headings or `null` if nothing needs to be updated.
+   */
+  protected abstract getHeadings(): Promise<H[] | null>;
+
+  /**
+   * Refresh the headings list.
+   */
+  async refresh(): Promise<void> {
+    if (this._isRefreshing) {
+      // Schedule a refresh if one is in progress
+      this._needsRefreshing = true;
+      return Promise.resolve();
+    }
+
+    this._isRefreshing = true;
+    try {
+      const newHeadings = await this.getHeadings();
+
+      if (this._needsRefreshing) {
+        this._needsRefreshing = false;
+        this._isRefreshing = false;
+        return this.refresh();
+      }
+
+      if (
+        newHeadings &&
+        !Private.areHeadingsEqual(newHeadings, this._headings)
+      ) {
+        this._headings = newHeadings;
+        this.stateChanged.emit();
+        this._headingsChanged.emit();
+      }
+    } finally {
+      this._isRefreshing = false;
+    }
+  }
+
+  /**
+   * Set a new active heading.
+   *
+   * @param heading The new active heading
+   * @param emitSignal Whether to emit the activeHeadingChanged signal or not.
+   */
+  setActiveHeading(heading: H | null, emitSignal = true): void {
+    if (this._activeHeading !== heading) {
+      this._activeHeading = heading;
+      this.stateChanged.emit();
+      if (emitSignal) {
+        this._activeHeadingChanged.emit(heading);
+      }
+    }
+  }
+
+  /**
+   * Model configuration setter.
+   *
+   * @param c New configuration
+   */
+  setConfiguration(c: Partial<TableOfContents.IConfig>): void {
+    const newConfiguration = { ...this._configuration, ...c };
+    if (!JSONExt.deepEqual(this._configuration, newConfiguration)) {
+      this._configuration = newConfiguration as TableOfContents.IConfig;
+      this.refresh().catch(reason => {
+        console.error('Failed to update the table of contents.', reason);
+      });
+    }
+  }
+
+  /**
+   * Callback on heading collapse.
+   *
+   * @param options.heading The heading to change state (all headings if not provided)
+   * @param options.collapsed The new collapsed status (toggle existing status if not provided)
+   */
+  toggleCollapse(options: { heading?: H; collapsed?: boolean }): void {
+    if (options.heading) {
+      options.heading.collapsed =
+        options.collapsed ?? !options.heading.collapsed;
+      this.stateChanged.emit();
+      this._collapseChanged.emit(options.heading);
+    } else {
+      // Use the provided state or collapsed all except if all are collapsed
+      const newState =
+        options.collapsed ?? !this.headings.some(h => !(h.collapsed ?? false));
+      this.headings.forEach(h => (h.collapsed = newState));
+      this.stateChanged.emit();
+      this._collapseChanged.emit(null);
+    }
+  }
+
+  private _activeHeading: H | null;
+  private _activeHeadingChanged: Signal<TableOfContentsModel<H, T>, H | null>;
+  private _collapseChanged: Signal<TableOfContentsModel<H, T>, H | null>;
+  private _configuration: TableOfContents.IConfig;
+  private _headings: H[];
+  private _headingsChanged: Signal<TableOfContentsModel<H, T>, void>;
+  private _isActive: boolean;
+  private _isRefreshing: boolean;
+  private _needsRefreshing: boolean;
+  private _title?: string;
+}
+
+/**
+ * Private functions namespace
+ */
+namespace Private {
+  /**
+   * Test if two list of headings are equal or not.
+   *
+   * @param headings1 First list of headings
+   * @param headings2 Second list of headings
+   * @returns Whether the array are identical or not.
+   */
+  export function areHeadingsEqual(
+    headings1: TableOfContents.IHeading[],
+    headings2: TableOfContents.IHeading[]
+  ): boolean {
+    if (headings1.length === headings2.length) {
+      for (let i = 0; i < headings1.length; i++) {
+        if (
+          headings1[i].level !== headings2[i].level ||
+          headings1[i].text !== headings2[i].text ||
+          headings1[i].prefix !== headings2[i].prefix
+        ) {
+          return false;
+        }
+      }
+      return true;
+    }
+
+    return false;
+  }
+}
diff --git a/packages/toc/src/panel.ts b/packages/toc/src/panel.ts
new file mode 100644
index 000000000000..906524e41bb7
--- /dev/null
+++ b/packages/toc/src/panel.ts
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ITranslator } from '@jupyterlab/translation';
+import { SidePanel } from '@jupyterlab/ui-components';
+import { Panel, Widget } from '@lumino/widgets';
+import { TableOfContentsWidget } from './treeview';
+import { TableOfContents } from './tokens';
+import { Message } from '@lumino/messaging';
+
+/**
+ * Table of contents sidebar panel.
+ */
+export class TableOfContentsPanel extends SidePanel {
+  /**
+   * Constructor
+   *
+   * @param translator - Translator tool
+   */
+  constructor(translator?: ITranslator) {
+    super({ content: new Panel(), translator });
+    this._model = null;
+
+    this.addClass('jp-TableOfContents');
+
+    this._title = new Private.Header(this._trans.__('Table of Contents'));
+    this.header.addWidget(this._title);
+
+    this._treeview = new TableOfContentsWidget({
+      placeholderHeadline: this._trans.__('No Headings'),
+      placeholderText: this._trans.__(
+        'The table of contents shows headings in notebooks and supported files.'
+      )
+    });
+    this._treeview.addClass('jp-TableOfContents-tree');
+    this.content.addWidget(this._treeview);
+  }
+
+  /**
+   * Get the current model.
+   */
+  get model(): TableOfContents.Model | null {
+    return this._model;
+  }
+  set model(newValue: TableOfContents.Model | null) {
+    if (this._model !== newValue) {
+      this._model?.stateChanged.disconnect(this._onTitleChanged, this);
+
+      this._model = newValue;
+      if (this._model) {
+        this._model.isActive = this.isVisible;
+      }
+
+      this._model?.stateChanged.connect(this._onTitleChanged, this);
+      this._onTitleChanged();
+
+      this._treeview.model = this._model;
+    }
+  }
+
+  protected onAfterHide(msg: Message): void {
+    super.onAfterHide(msg);
+    if (this._model) {
+      this._model.isActive = false;
+    }
+  }
+
+  protected onBeforeShow(msg: Message): void {
+    super.onBeforeShow(msg);
+    if (this._model) {
+      this._model.isActive = true;
+    }
+  }
+
+  private _onTitleChanged(): void {
+    this._title.setTitle(
+      this._model?.title ?? this._trans.__('Table of Contents')
+    );
+  }
+
+  private _model: TableOfContents.Model | null;
+  private _title: Private.Header;
+  private _treeview: TableOfContentsWidget;
+}
+
+/**
+ * Private helpers namespace
+ */
+namespace Private {
+  /**
+   * Panel header
+   */
+  export class Header extends Widget {
+    /**
+     * Constructor
+     *
+     * @param title - Title text
+     */
+    constructor(title: string) {
+      const node = document.createElement('h2');
+      node.textContent = title;
+      node.classList.add('jp-text-truncated');
+      super({ node });
+      this._title = node;
+    }
+
+    /**
+     * Set the header title.
+     */
+    setTitle(title: string): void {
+      this._title.textContent = title;
+    }
+
+    private _title: HTMLElement;
+  }
+}
diff --git a/packages/toc/src/registry.ts b/packages/toc/src/registry.ts
index efe96afd04eb..7bb5156994c1 100644
--- a/packages/toc/src/registry.ts
+++ b/packages/toc/src/registry.ts
@@ -1,50 +1,32 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IWidgetTracker } from '@jupyterlab/apputils';
-import { Token } from '@lumino/coreutils';
-import { ISignal, Signal } from '@lumino/signaling';
+import { DisposableDelegate, IDisposable } from '@lumino/disposable';
 import { Widget } from '@lumino/widgets';
-import { IHeading, INotebookHeading } from './utils/headings';
+import { ITableOfContentsRegistry, TableOfContents } from './tokens';
 
 /**
- * Interface describing the table of contents registry.
- *
- * @private
+ * Class for registering table of contents generators.
  */
-export interface ITableOfContentsRegistry extends TableOfContentsRegistry {}
-
-/* tslint:disable */
-/**
- * Table of contents registry token.
- */
-export const ITableOfContentsRegistry = new Token<TableOfContentsRegistry>(
-  '@jupyterlab/toc:ITableOfContentsRegistry'
-);
-/* tslint:enable */
-
-/**
- * Class for registering widgets for which we can generate a table of contents.
- */
-export class TableOfContentsRegistry {
+export class TableOfContentsRegistry implements ITableOfContentsRegistry {
   /**
-   * Finds a table of contents generator for a widget.
+   * Finds a table of contents model for a widget.
    *
    * ## Notes
    *
-   * -   If unable to find a table of contents generator, the method return `undefined`.
+   * -   If unable to find a table of contents model, the method return `undefined`.
    *
    * @param widget - widget
-   * @returns table of contents generator
+   * @param configuration - Default model configuration
+   * @returns Table of contents model
    */
-  find(widget: Widget): TableOfContentsRegistry.IGenerator | undefined {
-    for (let i = 0; i < this._generators.length; i++) {
-      const gen = this._generators[i];
-      if (gen.tracker.has(widget)) {
-        if (gen.isEnabled && !gen.isEnabled(widget)) {
-          continue;
-        }
-        return gen;
+  getModel(
+    widget: Widget,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContents.Model | undefined {
+    for (const generator of this._generators.values()) {
+      if (generator.isApplicable(widget)) {
+        return generator.createNew(widget, configuration);
       }
     }
   }
@@ -54,139 +36,15 @@ export class TableOfContentsRegistry {
    *
    * @param generator - table of contents generator
    */
-  add(generator: TableOfContentsRegistry.IGenerator): void {
-    if (generator.collapseChanged) {
-      // If there is a collapseChanged for a given generator, propagate the arguments through the registry's signal
-      generator.collapseChanged.connect(
-        (
-          sender: TableOfContentsRegistry.IGenerator<Widget>,
-          args: TableOfContentsRegistry.ICollapseChangedArgs
-        ) => {
-          this._collapseChanged.emit(args);
-        }
-      );
-    }
-    this._generators.push(generator);
-  }
+  add(generator: TableOfContents.IFactory): IDisposable {
+    const id = this._idCounter++;
+    this._generators.set(id, generator);
 
-  get collapseChanged(): ISignal<
-    this,
-    TableOfContentsRegistry.ICollapseChangedArgs
-  > {
-    return this._collapseChanged;
+    return new DisposableDelegate(() => {
+      this._generators.delete(id);
+    });
   }
 
-  private _collapseChanged: Signal<
-    this,
-    TableOfContentsRegistry.ICollapseChangedArgs
-  > = new Signal<this, TableOfContentsRegistry.ICollapseChangedArgs>(this);
-  private _generators: TableOfContentsRegistry.IGenerator[] = [];
-}
-
-/**
- * Static registry methods.
- */
-export namespace TableOfContentsRegistry {
-  /**
-   * Abstract class for managing options affecting how a table of contents is generated for a particular widget type.
-   */
-  export interface IOptionsManager {}
-
-  /**
-   * Interface for the arguments needed in the collapse signal of a generator
-   */
-  export interface ICollapseChangedArgs {
-    /**
-     * Boolean indicating whether the given heading is collapsed in ToC
-     */
-    collapsedState: boolean;
-
-    /**
-     * Heading that was involved in the collapse event
-     */
-    heading: IHeading;
-
-    /**
-     * Type of file that the given heading was produced from
-     */
-    tocType: string;
-  }
-
-  /**
-   * Interface describing a widget table of contents generator.
-   */
-  export interface IGenerator<W extends Widget = Widget> {
-    /**
-     * Widget instance tracker.
-     */
-    tracker: IWidgetTracker<W>;
-
-    /**
-     * Returns a boolean indicating whether we can generate a ToC for a widget.
-     *
-     * ## Notes
-     *
-     * -   By default, we assume ToC generation is enabled if the widget is hosted in `tracker`.
-     * -   However, a user may want to add additional checks (e.g., only generate a ToC for text files only if they have a given MIME type).
-     *
-     * @param widget - widget
-     * @returns boolean indicating whether we can generate a ToC for a widget
-     */
-    isEnabled?: (widget: W) => boolean;
-
-    /**
-     * Boolean indicating whether a document uses LaTeX typesetting.
-     *
-     * @default false
-     */
-    usesLatex?: boolean;
-
-    /**
-     * Options manager.
-     *
-     * @default undefined
-     */
-    options?: IOptionsManager;
-
-    /**
-     * Signal to indicate that a collapse event happened to this heading
-     * within the ToC.
-     */
-    collapseChanged?: ISignal<IOptionsManager, ICollapseChangedArgs>;
-
-    /**
-     * Returns a JSX element for each heading.
-     *
-     * ## Notes
-     *
-     * -   If not present, a default renderer will be used.
-     *
-     * @param item - heading
-     * @param toc - list of headings
-     * @returns JSX element
-     */
-    itemRenderer?: (
-      item: IHeading,
-      toc: INotebookHeading[]
-    ) => JSX.Element | null;
-
-    /**
-     * Returns a toolbar component.
-     *
-     * ## Notes
-     *
-     * -   If not present, no toolbar is generated.
-     *
-     * @returns toolbar component
-     */
-    toolbarGenerator?: () => any;
-
-    /**
-     * Returns a list of headings.
-     *
-     * @param widget - widget
-     * @returns list of headings
-     */
-    generate(widget: W, options?: IOptionsManager): IHeading[];
-  }
+  private _generators = new Map<number, TableOfContents.IFactory>();
+  private _idCounter = 0;
 }
diff --git a/packages/toc/src/toc.tsx b/packages/toc/src/toc.tsx
deleted file mode 100644
index 2d9ec10748a4..000000000000
--- a/packages/toc/src/toc.tsx
+++ /dev/null
@@ -1,259 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { ActivityMonitor, PathExt } from '@jupyterlab/coreutils';
-import { IDocumentManager } from '@jupyterlab/docmanager';
-import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
-import {
-  ITranslator,
-  nullTranslator,
-  TranslationBundle
-} from '@jupyterlab/translation';
-import { Message } from '@lumino/messaging';
-import { Widget } from '@lumino/widgets';
-import * as React from 'react';
-import * as ReactDOM from 'react-dom';
-import { IHeading } from './utils/headings';
-import { TableOfContentsRegistry as Registry } from './registry';
-import { TOCTree } from './toc_tree';
-import { Signal } from '@lumino/signaling';
-import { TOCItem } from './toc_item';
-
-/**
- * Timeout for throttling ToC rendering.
- *
- * @private
- */
-const RENDER_TIMEOUT = 1000;
-
-/**
- * Widget for hosting a notebook table of contents.
- */
-export class TableOfContents extends Widget {
-  /**
-   * Returns a new table of contents.
-   *
-   * @param options - options
-   * @returns widget
-   */
-  constructor(options: TableOfContents.IOptions) {
-    super();
-    this.translator = options.translator || nullTranslator;
-    this._docmanager = options.docmanager;
-    this._rendermime = options.rendermime;
-    this._trans = this.translator.load('jupyterlab');
-    this._headings = [];
-    this._entryClicked = new Signal<TableOfContents, TOCItem>(this);
-    this._entryClicked.connect((toc, item) => {
-      this.activeEntry = item.props.heading;
-    });
-    if (this._current) {
-      this._headings = this._current.generator.generate(
-        this._current.widget,
-        this._current.generator.options
-      );
-    }
-  }
-
-  /**
-   * Current widget-generator tuple for the ToC.
-   */
-  get current(): TableOfContents.ICurrentWidget | null {
-    return this._current;
-  }
-  set current(value: TableOfContents.ICurrentWidget | null) {
-    // If they are the same as previously, do nothing...
-    if (
-      value &&
-      this._current &&
-      this._current.widget === value.widget &&
-      this._current.generator === value.generator
-    ) {
-      return;
-    }
-    this._current = value;
-
-    if (this.generator) {
-      if (this.generator.toolbarGenerator) {
-        this._toolbar = this.generator.toolbarGenerator();
-      } else {
-        this._toolbar = null;
-      }
-    }
-    // Dispose an old activity monitor if one existed...
-    if (this._monitor) {
-      this._monitor.dispose();
-      this._monitor = null;
-    }
-    // If we are wiping the ToC, update and return...
-    if (!this._current) {
-      this.update();
-      return;
-    }
-    // Find the document model associated with the widget:
-    const context = this._docmanager.contextForWidget(this._current.widget);
-    if (!context || !context.model) {
-      throw Error('Could not find a context for the Table of Contents');
-    }
-    // Throttle the rendering rate of the table of contents:
-    this._monitor = new ActivityMonitor({
-      signal: context.model.contentChanged,
-      timeout: RENDER_TIMEOUT
-    });
-    this._monitor.activityStopped.connect(this.update, this);
-    this.update();
-  }
-
-  /**
-   * Current table of contents generator.
-   *
-   * @returns table of contents generator
-   */
-  get generator() {
-    if (this._current) {
-      return this._current.generator;
-    }
-    return null;
-  }
-
-  /**
-   * Callback invoked upon an update request.
-   *
-   * @param msg - message
-   */
-  protected onUpdateRequest(msg: Message): void {
-    if (this.isHidden) {
-      // Bail early
-      return;
-    }
-
-    let title = this._trans.__('Table of Contents');
-    if (this._current) {
-      this._headings = this._current.generator.generate(
-        this._current.widget,
-        this._current.generator.options
-      );
-      const context = this._docmanager.contextForWidget(this._current.widget);
-      if (context) {
-        title = PathExt.basename(context.localPath);
-      }
-    }
-    let itemRenderer: (
-      item: IHeading,
-      toc: IHeading[]
-    ) => JSX.Element | null = (item: IHeading) => {
-      return <span>{item.text}</span>;
-    };
-    if (this._current && this._current.generator.itemRenderer) {
-      itemRenderer = this._current.generator.itemRenderer!;
-    }
-    let jsx = (
-      <div className="jp-TableOfContents">
-        <div className="jp-stack-panel-header">{title}</div>
-      </div>
-    );
-    if (this._current && this._current.generator) {
-      jsx = (
-        <TOCTree
-          title={title}
-          toc={this._headings}
-          entryClicked={this._entryClicked}
-          generator={this.generator}
-          itemRenderer={itemRenderer}
-          toolbar={this._toolbar}
-        />
-      );
-    }
-    ReactDOM.render(jsx, this.node, () => {
-      if (
-        this._current &&
-        this._current.generator.usesLatex === true &&
-        this._rendermime.latexTypesetter
-      ) {
-        this._rendermime.latexTypesetter.typeset(this.node);
-      }
-    });
-  }
-
-  /**
-   * Current active entry.
-   *
-   * @returns table of contents active entry
-   */
-  get activeEntry(): IHeading {
-    return this._activeEntry;
-  }
-
-  set activeEntry(value: IHeading) {
-    this._activeEntry = value;
-  }
-
-  /**
-   * List of headings.
-   *
-   * @returns table of contents list of headings
-   */
-  get headings(): IHeading[] {
-    return this._headings;
-  }
-
-  /**
-   * Callback invoked to re-render after showing a table of contents.
-   *
-   * @param msg - message
-   */
-  protected onAfterShow(msg: Message): void {
-    this.update();
-  }
-
-  private translator: ITranslator;
-  private _activeEntry: IHeading;
-  private _entryClicked?: Signal<TableOfContents, TOCItem>;
-  private _trans: TranslationBundle;
-  private _toolbar: any;
-  private _rendermime: IRenderMimeRegistry;
-  private _docmanager: IDocumentManager;
-  private _current: TableOfContents.ICurrentWidget | null;
-  private _monitor: ActivityMonitor<any, any> | null;
-  private _headings: IHeading[];
-}
-
-/**
- * A namespace for TableOfContents statics.
- */
-export namespace TableOfContents {
-  /**
-   * Interface describing table of contents widget options.
-   */
-  export interface IOptions {
-    /**
-     * Application document manager.
-     */
-    docmanager: IDocumentManager;
-
-    /**
-     * Application rendered MIME type.
-     */
-    rendermime: IRenderMimeRegistry;
-
-    /**
-     * Application language translator.
-     */
-    translator?: ITranslator;
-  }
-
-  /**
-   * Interface describing the current widget.
-   */
-  export interface ICurrentWidget<W extends Widget = Widget> {
-    /**
-     * Current widget.
-     */
-    widget: W;
-
-    /**
-     * Table of contents generator for the current widget.
-     */
-    generator: Registry.IGenerator<W>;
-  }
-}
diff --git a/packages/toc/src/toc_item.tsx b/packages/toc/src/toc_item.tsx
deleted file mode 100644
index 068a25d5260c..000000000000
--- a/packages/toc/src/toc_item.tsx
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-import { IHeading } from './utils/headings';
-import { Signal } from '@lumino/signaling';
-import { TableOfContents } from './toc';
-
-/**
- * Interface describing component properties.
- *
- * @private
- */
-interface IProperties {
-  /**
-   * Heading to render.
-   */
-  heading: IHeading;
-  /**
-   * List of headings to use for rendering current position in toc
-   */
-  toc: IHeading[];
-
-  /**
-   * Optional signal that emits when a toc entry is clicked
-   */
-  entryClicked?: Signal<TableOfContents, TOCItem>;
-
-  /**
-   * Renders a heading.
-   *
-   * @param item - heading
-   * @param toc - list of headings
-   * @returns rendered heading
-   */
-  itemRenderer: (item: IHeading, toc: IHeading[]) => JSX.Element | null;
-}
-
-/**
- * Interface describing component state.
- *
- * @private
- */
-interface IState {}
-
-/**
- * React component for a table of contents entry.
- *
- * @private
- */
-class TOCItem extends React.Component<IProperties, IState> {
-  /**
-   * Renders a table of contents entry.
-   *
-   * @returns rendered entry
-   */
-  render() {
-    const { heading, toc } = this.props;
-
-    // Create an onClick handler for the TOC item
-    // that scrolls the anchor into view.
-    const onClick = (event: React.SyntheticEvent<HTMLSpanElement>) => {
-      event.preventDefault();
-      event.stopPropagation();
-      this.props.entryClicked?.emit(this);
-      heading.onClick();
-    };
-
-    let content = this.props.itemRenderer(heading, toc);
-    if (!content) {
-      return null;
-    }
-    return (
-      <li
-        className="jp-tocItem"
-        onClick={onClick}
-        onContextMenu={(event: React.SyntheticEvent<HTMLSpanElement>) => {
-          this.props.entryClicked?.emit(this);
-          heading.onClick();
-        }}
-      >
-        {content}
-      </li>
-    );
-  }
-}
-
-/**
- * Exports.
- */
-export { TOCItem };
diff --git a/packages/toc/src/toc_tree.tsx b/packages/toc/src/toc_tree.tsx
deleted file mode 100644
index 9dc31f12a7a9..000000000000
--- a/packages/toc/src/toc_tree.tsx
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import * as React from 'react';
-import { Widget } from '@lumino/widgets';
-import { IHeading } from './utils/headings';
-import { TableOfContentsRegistry as Registry } from './registry';
-import { TOCItem } from './toc_item';
-import { Signal } from '@lumino/signaling';
-import { TableOfContents } from './toc';
-
-/**
- * Interface describing component properties.
- *
- * @private
- */
-interface IProperties extends React.Props<TOCTree> {
-  /**
-   * Display title.
-   */
-  title: string;
-
-  /**
-   * List of headings to render.
-   */
-  toc: IHeading[];
-
-  /**
-   * Toolbar.
-   */
-  toolbar: any;
-
-  entryClicked?: Signal<TableOfContents, TOCItem>;
-
-  /**
-   * Table of contents generator.
-   */
-  generator: Registry.IGenerator<Widget> | null;
-
-  /**
-   * Renders a heading item.
-   *
-   * @param item - heading
-   * @param toc - list of headings in toc to use for rendering current position
-   * @returns rendered heading
-   */
-  itemRenderer: (item: IHeading, toc: IHeading[]) => JSX.Element | null;
-}
-
-/**
- * Interface describing component state.
- *
- * @private
- */
-interface IState {}
-
-/**
- * React component for a table of contents tree.
- *
- * @private
- */
-class TOCTree extends React.Component<IProperties, IState> {
-  /**
-   * Renders a table of contents tree.
-   */
-  render() {
-    const Toolbar = this.props.toolbar;
-
-    // Map the heading objects onto a list of JSX elements...
-    let i = 0;
-    let list: JSX.Element[] = this.props.toc.map(el => {
-      return (
-        <TOCItem
-          heading={el}
-          toc={this.props.toc}
-          entryClicked={this.props.entryClicked}
-          itemRenderer={this.props.itemRenderer}
-          key={`${el.text}-${el.level}-${i++}`}
-        />
-      );
-    });
-    return (
-      <div className="jp-TableOfContents">
-        <div className="jp-stack-panel-header">{this.props.title}</div>
-        {Toolbar && <Toolbar />}
-        <ul className="jp-TableOfContents-content">{list}</ul>
-      </div>
-    );
-  }
-}
-
-/**
- * Exports.
- */
-export { TOCTree };
diff --git a/packages/toc/src/tocitem.tsx b/packages/toc/src/tocitem.tsx
new file mode 100644
index 000000000000..c069a4675613
--- /dev/null
+++ b/packages/toc/src/tocitem.tsx
@@ -0,0 +1,87 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { caretDownIcon, caretRightIcon } from '@jupyterlab/ui-components';
+import * as React from 'react';
+import { TableOfContents } from './tokens';
+
+/**
+ * Interface describing component properties.
+ */
+export interface ITableOfContentsItemsProps {
+  /**
+   * Whether this item is active or not.
+   */
+  isActive: boolean;
+  /**
+   * Heading to render.
+   */
+  heading: TableOfContents.IHeading;
+
+  /**
+   * On `mouse-down` event callback.
+   */
+  onMouseDown: (heading: TableOfContents.IHeading) => void;
+
+  /**
+   * Collapse event callback.
+   */
+  onCollapse: (heading: TableOfContents.IHeading) => void;
+}
+
+/**
+ * React component for a table of contents entry.
+ */
+export class TableOfContentsItem extends React.PureComponent<
+  React.PropsWithChildren<ITableOfContentsItemsProps>
+> {
+  /**
+   * Renders a table of contents entry.
+   *
+   * @returns rendered entry
+   */
+  render(): JSX.Element | null {
+    const { children, isActive, heading, onCollapse, onMouseDown } = this.props;
+
+    return (
+      <li className="jp-tocItem">
+        <div
+          className={`jp-tocItem-heading ${
+            isActive ? 'jp-tocItem-active' : ''
+          }`}
+          onMouseDown={(event: React.SyntheticEvent<HTMLDivElement>) => {
+            // React only on deepest item
+            if (!event.defaultPrevented) {
+              event.preventDefault();
+              onMouseDown(heading);
+            }
+          }}
+        >
+          <button
+            className="jp-tocItem-collapser"
+            onClick={(event: React.MouseEvent) => {
+              event.preventDefault();
+              onCollapse(heading);
+            }}
+            style={{ visibility: children ? 'visible' : 'hidden' }}
+          >
+            {heading.collapsed ? (
+              <caretRightIcon.react tag="span" width="20px" />
+            ) : (
+              <caretDownIcon.react tag="span" width="20px" />
+            )}
+          </button>
+          <span
+            className="jp-tocItem-content"
+            title={heading.text}
+            {...heading.dataset}
+          >
+            {heading.prefix}
+            {heading.text}
+          </span>
+        </div>
+        {children && !heading.collapsed && <ol>{children}</ol>}
+      </li>
+    );
+  }
+}
diff --git a/packages/toc/src/toctree.tsx b/packages/toc/src/toctree.tsx
new file mode 100644
index 000000000000..93abcb0b6110
--- /dev/null
+++ b/packages/toc/src/toctree.tsx
@@ -0,0 +1,102 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import * as React from 'react';
+import { TableOfContentsItem } from './tocitem';
+import { TableOfContents } from './tokens';
+
+/**
+ * Interface describing component properties.
+ */
+export interface ITableOfContentsTreeProps {
+  /**
+   * Currently active heading.
+   */
+  activeHeading: TableOfContents.IHeading | null;
+  /**
+   * Type of document supported by the model.
+   */
+  documentType: string;
+  /**
+   * List of headings to render.
+   */
+  headings: TableOfContents.IHeading[];
+  /**
+   * Set active heading.
+   */
+  setActiveHeading: (heading: TableOfContents.IHeading) => void;
+  /**
+   * Collapse heading callback.
+   */
+  onCollapseChange: (heading: TableOfContents.IHeading) => void;
+}
+
+/**
+ * React component for a table of contents tree.
+ */
+export class TableOfContentsTree extends React.PureComponent<ITableOfContentsTreeProps> {
+  /**
+   * Renders a table of contents tree.
+   */
+  render(): JSX.Element {
+    const { documentType } = this.props;
+    return (
+      <ol
+        className="jp-TableOfContents-content"
+        {...{ 'data-document-type': documentType }}
+      >
+        {this.buildTree()}
+      </ol>
+    );
+  }
+
+  /**
+   * Convert the flat headings list to a nested tree list
+   */
+  protected buildTree(): JSX.Element[] {
+    if (this.props.headings.length === 0) {
+      return [];
+    }
+
+    const buildOneTree = (currentIndex: number): [JSX.Element, number] => {
+      const items = this.props.headings;
+      const children = new Array<JSX.Element>();
+      const current = items[currentIndex];
+      let nextCandidateIndex = currentIndex + 1;
+
+      while (nextCandidateIndex < items.length) {
+        const candidateItem = items[nextCandidateIndex];
+        if (candidateItem.level <= current.level) {
+          break;
+        }
+        const [child, nextIndex] = buildOneTree(nextCandidateIndex);
+        children.push(child);
+        nextCandidateIndex = nextIndex;
+      }
+      const currentTree = (
+        <TableOfContentsItem
+          key={`${current.level}-${currentIndex}-${current.text}`}
+          isActive={
+            !!this.props.activeHeading && current === this.props.activeHeading
+          }
+          heading={current}
+          onMouseDown={this.props.setActiveHeading}
+          onCollapse={this.props.onCollapseChange}
+        >
+          {children.length ? children : null}
+        </TableOfContentsItem>
+      );
+      return [currentTree, nextCandidateIndex];
+    };
+
+    const trees = new Array<JSX.Element>();
+    let currentIndex = 0;
+    while (currentIndex < this.props.headings.length) {
+      const [tree, nextIndex] = buildOneTree(currentIndex);
+      trees.push(tree);
+      currentIndex = nextIndex;
+    }
+
+    return trees;
+  }
+}
diff --git a/packages/toc/src/tokens.ts b/packages/toc/src/tokens.ts
new file mode 100644
index 000000000000..d6efca451e5c
--- /dev/null
+++ b/packages/toc/src/tokens.ts
@@ -0,0 +1,302 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import type { ToolbarRegistry } from '@jupyterlab/apputils';
+import type { IObservableList } from '@jupyterlab/observables';
+import type { VDomRenderer } from '@jupyterlab/ui-components';
+import type { JSONObject } from '@lumino/coreutils';
+import { Token } from '@lumino/coreutils';
+import type { IDisposable } from '@lumino/disposable';
+import type { ISignal } from '@lumino/signaling';
+import type { Widget } from '@lumino/widgets';
+
+/**
+ * Interface describing the table of contents registry.
+ */
+export interface ITableOfContentsRegistry {
+  /**
+   * Finds a table of contents model for a widget.
+   *
+   * ## Notes
+   *
+   * -   If unable to find a table of contents model, the method return `undefined`.
+   *
+   * @param widget - widget
+   * @param configuration - Table of contents configuration
+   * @returns Table of contents model or undefined if not found
+   */
+  getModel(
+    widget: Widget,
+    configuration?: TableOfContents.IConfig
+  ): TableOfContents.Model | undefined;
+
+  /**
+   * Adds a table of contents factory to the registry.
+   *
+   * @param factory - table of contents factory
+   */
+  add(factory: TableOfContents.IFactory): IDisposable;
+}
+
+/**
+ * Table of contents registry token.
+ */
+export const ITableOfContentsRegistry = new Token<ITableOfContentsRegistry>(
+  '@jupyterlab/toc:ITableOfContentsRegistry',
+  'A service to register table of content factory.'
+);
+
+/**
+ * Interface for the table of contents tracker
+ */
+export interface ITableOfContentsTracker {
+  /**
+   * Get the model associated with a given widget.
+   *
+   * @param widget Widget
+   */
+  get(widget: Widget): TableOfContents.IModel<TableOfContents.IHeading> | null;
+}
+
+/**
+ * Table of contents tracker token.
+ */
+export const ITableOfContentsTracker = new Token<ITableOfContentsTracker>(
+  '@jupyterlab/toc:ITableOfContentsTracker',
+  'A widget tracker for table of contents.'
+);
+
+/**
+ * Namespace for table of contents interface
+ */
+export namespace TableOfContents {
+  /**
+   * Table of content model factory interface
+   */
+  export interface IFactory<
+    W extends Widget = Widget,
+    H extends IHeading = IHeading
+  > {
+    /**
+     * Whether the factory can handle the widget or not.
+     *
+     * @param widget - widget
+     * @returns boolean indicating a ToC can be generated
+     */
+    isApplicable: (widget: W) => boolean;
+
+    /**
+     * Create a new table of contents model for the widget
+     *
+     * @param widget - widget
+     * @param configuration - Table of contents configuration
+     * @returns The table of contents model
+     */
+    createNew: (
+      widget: W,
+      configuration?: TableOfContents.IConfig
+    ) => IModel<H>;
+  }
+
+  /**
+   * Table of Contents configuration
+   *
+   * #### Notes
+   * A document model may ignore some of those options.
+   */
+  export interface IConfig extends JSONObject {
+    /**
+     * Base level for the highest headings
+     */
+    baseNumbering: number;
+    /**
+     * Maximal depth of headings to display
+     */
+    maximalDepth: number;
+    /**
+     * Whether to number first-level headings or not.
+     */
+    numberingH1: boolean;
+    /**
+     * Whether to number headings in document or not.
+     */
+    numberHeaders: boolean;
+    /**
+     * Whether to include cell outputs in headings or not.
+     */
+    includeOutput: boolean;
+    /**
+     * Whether to synchronize heading collapse state between the ToC and the document or not.
+     */
+    syncCollapseState: boolean;
+  }
+
+  /**
+   * Default table of content configuration
+   */
+  export const defaultConfig: IConfig = {
+    baseNumbering: 1,
+    maximalDepth: 4,
+    numberingH1: true,
+    numberHeaders: false,
+    includeOutput: true,
+    syncCollapseState: false
+  };
+
+  /**
+   * Interface describing a heading.
+   */
+  export interface IHeading {
+    /**
+     * Heading text.
+     */
+    text: string;
+
+    /**
+     * HTML heading level.
+     */
+    level: number;
+
+    /**
+     * Heading prefix.
+     */
+    prefix?: string | null;
+
+    /**
+     * Dataset to add to the item node
+     */
+    dataset?: Record<string, string>;
+
+    /**
+     * Whether the heading is collapsed or not
+     */
+    collapsed?: boolean;
+
+    /**
+     * Whether the heading is marked to skip or not
+     */
+    skip?: boolean;
+  }
+
+  /**
+   * Interface describing a widget table of contents model.
+   */
+  export interface IModel<H extends IHeading> extends VDomRenderer.IModel {
+    /**
+     * Active heading
+     */
+    readonly activeHeading: H | null;
+
+    /**
+     * Signal emitted when the active heading changes.
+     */
+    readonly activeHeadingChanged: ISignal<IModel<H>, H | null>;
+
+    /**
+     * Signal emitted when a table of content section collapse state changes.
+     *
+     * If all headings state are set at the same time, the argument is null.
+     */
+    readonly collapseChanged: ISignal<IModel<H>, H | null>;
+
+    /**
+     * Model configuration
+     */
+    readonly configuration: IConfig;
+
+    /**
+     * Type of document supported by the model.
+     *
+     * #### Notes
+     * A `data-document-type` attribute with this value will be set
+     * on the tree view `.jp-TableOfContents-content[data-document-type="..."]`
+     */
+    readonly documentType: string;
+
+    /**
+     * Returns the list of headings.
+     *
+     * @returns list of headings
+     */
+    readonly headings: H[];
+
+    /**
+     * Signal emitted when the headings changes.
+     */
+    readonly headingsChanged: ISignal<IModel<H>, void>;
+
+    /**
+     * Whether the model needs to be kept up to date or not.
+     *
+     * ### Notes
+     * This is set to `true` if the ToC panel is visible and
+     * to `false` if it is hidden. But some models may require
+     * to be always active; e.g. to add numbering in the document.
+     */
+    isActive: boolean;
+
+    /**
+     * Set a new active heading.
+     *
+     * @param heading The new active heading
+     * @param emitSignal Whether to emit the activeHeadingChanged signal or not.
+     */
+    setActiveHeading(heading: H | null, emitSignal?: boolean): void;
+
+    /**
+     * Model configuration setter.
+     *
+     * @param c New configuration
+     */
+    setConfiguration(c: Partial<IConfig>): void;
+
+    /**
+     * List of configuration options supported by the model.
+     */
+    readonly supportedOptions: (keyof IConfig)[];
+
+    /**
+     * Document title
+     */
+    title?: string;
+
+    /**
+     * Callback on heading collapse.
+     *
+     * @param options.heading The heading to change state (all headings if not provided)
+     * @param options.collapsed The new collapsed status (toggle existing status if not provided)
+     */
+    toggleCollapse: (options: { heading?: H; collapsed?: boolean }) => void;
+  }
+
+  /**
+   * Generic table of contents type
+   */
+  export type Model = IModel<IHeading>;
+
+  /**
+   * Interface describing table of contents widget options.
+   */
+  export interface IOptions {
+    /**
+     * Table of contents model.
+     */
+    model?: IModel<IHeading>;
+
+    /**
+     * If no headings are present, a headline to display as a placeholder
+     */
+    placeholderHeadline: string;
+
+    /**
+     * If no headings are present, text to display as a placeholder
+     */
+    placeholderText: string;
+  }
+
+  /**
+   * Interface describing a toolbar item list
+   */
+  export interface IToolbarItems
+    extends IObservableList<ToolbarRegistry.IToolbarItem> {}
+}
diff --git a/packages/toc/src/tracker.ts b/packages/toc/src/tracker.ts
new file mode 100644
index 000000000000..66539e59185a
--- /dev/null
+++ b/packages/toc/src/tracker.ts
@@ -0,0 +1,41 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Widget } from '@lumino/widgets';
+import { ITableOfContentsTracker, TableOfContents } from './tokens';
+
+/**
+ * Table of contents tracker
+ */
+export class TableOfContentsTracker implements ITableOfContentsTracker {
+  /**
+   * Constructor
+   */
+  constructor() {
+    this.modelMapping = new WeakMap<Widget, TableOfContents.Model>();
+  }
+
+  /**
+   * Track a given model.
+   *
+   * @param widget Widget
+   * @param model Table of contents model
+   */
+  add(widget: Widget, model: TableOfContents.Model): void {
+    this.modelMapping.set(widget, model);
+  }
+
+  /**
+   * Get the table of contents model associated with a given widget.
+   *
+   * @param widget Widget
+   * @returns The table of contents model
+   */
+  get(widget: Widget): TableOfContents.Model | null {
+    const model = this.modelMapping.get(widget);
+
+    return !model || model.isDisposed ? null : model;
+  }
+
+  protected modelMapping: WeakMap<Widget, TableOfContents.Model>;
+}
diff --git a/packages/toc/src/treeview.tsx b/packages/toc/src/treeview.tsx
new file mode 100644
index 000000000000..8ef477679d8d
--- /dev/null
+++ b/packages/toc/src/treeview.tsx
@@ -0,0 +1,59 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { VDomRenderer } from '@jupyterlab/ui-components';
+import * as React from 'react';
+import { TableOfContentsTree } from './toctree';
+import { TableOfContents } from './tokens';
+
+/**
+ * Table of contents widget.
+ */
+export class TableOfContentsWidget extends VDomRenderer<TableOfContents.IModel<TableOfContents.IHeading> | null> {
+  /**
+   * Constructor
+   *
+   * @param options Widget options
+   */
+  constructor(options: TableOfContents.IOptions) {
+    super(options.model);
+    this._placeholderHeadline = options.placeholderHeadline;
+    this._placeholderText = options.placeholderText;
+  }
+
+  /**
+   * Render the content of this widget using the virtual DOM.
+   *
+   * This method will be called anytime the widget needs to be rendered, which
+   * includes layout triggered rendering.
+   */
+  render(): JSX.Element | null {
+    if (!this.model || this.model.headings.length === 0) {
+      return (
+        <div className="jp-TableOfContents-placeholder">
+          <div className="jp-TableOfContents-placeholderContent">
+            <h3>{this._placeholderHeadline}</h3>
+            <p>{this._placeholderText}</p>
+          </div>
+        </div>
+      );
+    }
+
+    return (
+      <TableOfContentsTree
+        activeHeading={this.model.activeHeading}
+        documentType={this.model.documentType}
+        headings={this.model.headings}
+        onCollapseChange={(heading: TableOfContents.IHeading) => {
+          this.model!.toggleCollapse({ heading });
+        }}
+        setActiveHeading={(heading: TableOfContents.IHeading) => {
+          this.model!.setActiveHeading(heading);
+        }}
+      ></TableOfContentsTree>
+    );
+  }
+
+  readonly _placeholderHeadline: string;
+  readonly _placeholderText: string;
+}
diff --git a/packages/toc/src/utils/common.ts b/packages/toc/src/utils/common.ts
new file mode 100644
index 000000000000..feeec1a050b7
--- /dev/null
+++ b/packages/toc/src/utils/common.ts
@@ -0,0 +1,220 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { TableOfContents } from '../tokens';
+
+/**
+ * Class used to mark numbering prefix for headings in a document.
+ */
+export const NUMBERING_CLASS = 'numbering-entry';
+
+/**
+ * HTML heading
+ */
+export interface IHTMLHeading extends TableOfContents.IHeading {
+  /**
+   * HTML id
+   */
+  id?: string | null;
+}
+
+/**
+ * Filter headings for table of contents and compute associated prefix
+ *
+ * @param headings Headings to process
+ * @param options Options
+ * @param initialLevels Initial levels for prefix computation
+ * @returns Extracted headings
+ */
+export function filterHeadings<
+  T extends TableOfContents.IHeading = TableOfContents.IHeading
+>(
+  headings: T[],
+  options?: Partial<TableOfContents.IConfig>,
+  initialLevels: number[] = []
+): T[] {
+  const config = {
+    ...TableOfContents.defaultConfig,
+    ...options
+  } as TableOfContents.IConfig;
+
+  const levels = initialLevels;
+  let previousLevel = levels.length;
+  const filteredHeadings = new Array<T>();
+  for (const heading of headings) {
+    if (heading.skip) {
+      continue;
+    }
+    const level = heading.level;
+
+    if (level > 0 && level <= config.maximalDepth) {
+      const prefix = getPrefix(level, previousLevel, levels, config);
+      previousLevel = level;
+
+      filteredHeadings.push({
+        ...heading,
+        prefix
+      });
+    }
+  }
+  return filteredHeadings;
+}
+
+/**
+ * Returns whether a MIME type corresponds to either HTML.
+ *
+ * @param mime - MIME type string
+ * @returns boolean indicating whether a provided MIME type corresponds to either HTML
+ *
+ * @example
+ * const bool = isHTML('text/html');
+ * // returns true
+ *
+ * @example
+ * const bool = isHTML('text/plain');
+ * // returns false
+ */
+export function isHTML(mime: string): boolean {
+  return mime === 'text/html';
+}
+
+/**
+ * Parse a HTML string for headings.
+ *
+ * ### Notes
+ * The html string is not sanitized - use with caution
+ *
+ * @param html HTML string to parse
+ * @param force Whether to ignore HTML headings with class jp-toc-ignore and tocSkip or not
+ * @returns Extracted headings
+ */
+export function getHTMLHeadings(html: string, force = true): IHTMLHeading[] {
+  const container: HTMLDivElement = document.createElement('div');
+  container.innerHTML = html;
+
+  const headings = new Array<IHTMLHeading>();
+  const headers = container.querySelectorAll('h1, h2, h3, h4, h5, h6');
+  for (const h of headers) {
+    const level = parseInt(h.tagName[1], 10);
+
+    headings.push({
+      text: h.textContent ?? '',
+      level,
+      id: h?.getAttribute('id'),
+      skip:
+        h.classList.contains('jp-toc-ignore') || h.classList.contains('tocSkip')
+    });
+  }
+  return headings;
+}
+
+/**
+ * Add an heading prefix to a HTML node.
+ *
+ * @param container HTML node containing the heading
+ * @param selector Heading selector
+ * @param prefix Title prefix to add
+ * @returns The modified HTML element
+ */
+export function addPrefix(
+  container: Element,
+  selector: string,
+  prefix: string
+): Element | null {
+  let element = container.querySelector(selector) as Element | null;
+
+  if (!element) {
+    return null;
+  }
+
+  if (!element.querySelector(`span.${NUMBERING_CLASS}`)) {
+    addNumbering(element, prefix);
+  } else {
+    // There are likely multiple elements with the same selector
+    //  => use the first one without prefix
+    const allElements = container.querySelectorAll(selector);
+    for (const el of allElements) {
+      if (!el.querySelector(`span.${NUMBERING_CLASS}`)) {
+        element = el;
+        addNumbering(el, prefix);
+        break;
+      }
+    }
+  }
+
+  return element;
+}
+
+/**
+ * Update the levels and create the numbering prefix
+ *
+ * @param level Current level
+ * @param previousLevel Previous level
+ * @param levels Levels list
+ * @param options Options
+ * @returns The numbering prefix
+ */
+export function getPrefix(
+  level: number,
+  previousLevel: number,
+  levels: number[],
+  options: TableOfContents.IConfig
+): string {
+  const { baseNumbering, numberingH1, numberHeaders } = options;
+  let prefix = '';
+  if (numberHeaders) {
+    const highestLevel = numberingH1 ? 1 : 2;
+    if (level > previousLevel) {
+      // Initialize the new levels
+      for (let l = previousLevel; l < level - 1; l++) {
+        levels[l] = 0;
+      }
+      levels[level - 1] = level === highestLevel ? baseNumbering : 1;
+    } else {
+      // Increment the current level
+      levels[level - 1] += 1;
+
+      // Drop higher levels
+      if (level < previousLevel) {
+        levels.splice(level);
+      }
+    }
+
+    // If the header list skips some level, replace missing elements by 0
+    if (numberingH1) {
+      prefix = levels.map(level => level ?? 0).join('.') + '. ';
+    } else {
+      if (levels.length > 1) {
+        prefix =
+          levels
+            .slice(1)
+            .map(level => level ?? 0)
+            .join('.') + '. ';
+      }
+    }
+  }
+  return prefix;
+}
+
+/**
+ * Add a numbering prefix to a HTML element.
+ *
+ * @param el HTML element
+ * @param numbering Numbering prefix to add
+ */
+function addNumbering(el: Element, numbering: string): void {
+  el.insertAdjacentHTML(
+    'afterbegin',
+    `<span class="${NUMBERING_CLASS}">${numbering}</span>`
+  );
+}
+
+/**
+ * Remove all numbering nodes from element
+ * @param element Node to clear
+ */
+export function clearNumbering(element: Element): void {
+  element?.querySelectorAll(`span.${NUMBERING_CLASS}`).forEach(el => {
+    el.remove();
+  });
+}
diff --git a/packages/toc/src/utils/generate_numbering.ts b/packages/toc/src/utils/generate_numbering.ts
deleted file mode 100644
index 6eef9f2a17b5..000000000000
--- a/packages/toc/src/utils/generate_numbering.ts
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { INumberingDictionary } from './numbering_dictionary';
-
-// Maximum heading level:
-const MAX_HEADING_LEVEL = 6;
-
-/**
- * Updates numbering dictionary levels.
- *
- * ## Notes
- *
- * -   Mutates a provided dictionary.
- *
- * @private
- * @param dict - numbering dictionary
- * @param level - current level
- * @returns input dictionary
- */
-function update(dict: any, level: number) {
-  for (let l = level + 1; l <= MAX_HEADING_LEVEL; l++) {
-    if (dict[l] !== void 0) {
-      dict[l] = void 0;
-    }
-  }
-  if (dict[level] === void 0) {
-    dict[level] = 1;
-  } else {
-    dict[level] += 1;
-  }
-  return dict;
-}
-
-/**
- * Generate the current numbering based on a provided numbering dictionary and the current level.
- *
- * @private
- * @param dict - numbering dictionary
- * @param level - current level
- * @returns numbering
- */
-function generateNumbering(
-  dict: INumberingDictionary,
-  level: number
-): string | undefined {
-  if (dict === null) {
-    return;
-  }
-  let numbering = '';
-  dict = update(dict, level);
-  if (level >= 1) {
-    for (let j = 1; j <= level; j++) {
-      numbering += (dict[j] === void 0 ? '0' : dict[j]) + '.';
-    }
-    numbering += ' ';
-  }
-  return numbering;
-}
-
-/**
- * Exports.
- */
-export { generateNumbering };
diff --git a/packages/toc/src/utils/headings.ts b/packages/toc/src/utils/headings.ts
deleted file mode 100644
index c054c16d725a..000000000000
--- a/packages/toc/src/utils/headings.ts
+++ /dev/null
@@ -1,112 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { Cell } from '@jupyterlab/cells';
-
-/**
- * Interface describing a heading.
- */
-export interface IHeading {
-  /**
-   * Heading text.
-   */
-  text: string;
-
-  /**
-   * HTML heading level.
-   */
-  level: number;
-
-  /**
-   * Callback invoked upon clicking a ToC item.
-   *
-   * ## Notes
-   *
-   * -   This will typically be used to scroll the parent widget to this item.
-   */
-  onClick: () => void;
-
-  /**
-   * Special HTML markup.
-   *
-   * ## Notes
-   *
-   * -   The HTML string **should** be properly **sanitized**!
-   * -   The HTML string can be used to render Markdown headings which have already been rendered as HTML.
-   */
-  html?: string;
-}
-
-/**
- * Interface describing a numbered heading.
- */
-export interface INumberedHeading extends IHeading {
-  /**
-   * Heading numbering.
-   */
-  numbering?: string | null;
-}
-
-/**
- * Cell running status
- */
-export enum RunningStatus {
-  /**
-   * Cell is idle
-   */
-  Idle = -1,
-  /**
-   * Cell execution is scheduled
-   */
-  Scheduled = 0,
-  /**
-   * Cell is running
-   */
-  Running = 1
-}
-
-/**
- * Interface describing a notebook cell heading.
- */
-export interface INotebookHeading extends INumberedHeading {
-  /**
-   * Heading type.
-   */
-  type: 'header' | 'markdown' | 'code';
-
-  /**
-   * Reference to a notebook cell.
-   */
-  cellRef: Cell;
-
-  /**
-   * Heading prompt.
-   */
-  prompt?: string;
-
-  /**
-   * Boolean indicating whether a heading has a child node.
-   */
-  hasChild?: boolean;
-
-  /**
-   * index of reference cell in the notebook
-   */
-  index: number;
-
-  /**
-   * Running status of the cells in the heading
-   */
-  isRunning: RunningStatus;
-}
-
-/**
- * Tests whether a heading is a notebook heading.
- *
- * @param heading - heading to test
- * @returns boolean indicating whether a heading is a notebook heading
- */
-
-export function isNotebookHeading(heading: any): boolean {
-  return heading.type !== undefined && heading.cellRef !== undefined;
-}
diff --git a/packages/toc/src/utils/index.ts b/packages/toc/src/utils/index.ts
new file mode 100644
index 000000000000..3bb44e3a381f
--- /dev/null
+++ b/packages/toc/src/utils/index.ts
@@ -0,0 +1,5 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+export * from './common';
+export * as Markdown from './markdown';
diff --git a/packages/toc/src/utils/is_dom.ts b/packages/toc/src/utils/is_dom.ts
deleted file mode 100644
index 434c712c3daa..000000000000
--- a/packages/toc/src/utils/is_dom.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * Returns whether a MIME type corresponds to either HTML or virtual DOM.
- *
- * @private
- * @param mime - MIME type string
- * @returns boolean indicating whether a provided MIME type corresponds to either HTML or virtual DOM
- *
- * @example
- * const bool = isDOM('text/html');
- * // returns true
- *
- * @example
- * const bool = isDOM('text/plain');
- * // returns false
- */
-function isDOM(mime: string): boolean {
-  return mime === 'application/vdom.v1+json' || mime === 'text/html';
-}
-
-/**
- * Exports.
- */
-export { isDOM };
diff --git a/packages/toc/src/utils/is_markdown.ts b/packages/toc/src/utils/is_markdown.ts
deleted file mode 100644
index 21f17849d6ed..000000000000
--- a/packages/toc/src/utils/is_markdown.ts
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * Returns whether a MIME type corresponds to a Markdown flavor.
- *
- * @private
- * @param mime - MIME type string
- * @returns boolean indicating whether a provided MIME type corresponds to a Markdown flavor
- *
- * @example
- * const bool = isMarkdown('text/markdown');
- * // returns true
- *
- * @example
- * const bool = isMarkdown('text/plain');
- * // returns false
- */
-function isMarkdown(mime: string): boolean {
-  return (
-    mime === 'text/x-ipythongfm' ||
-    mime === 'text/x-markdown' ||
-    mime === 'text/x-gfm' ||
-    mime === 'text/markdown'
-  );
-}
-
-/**
- * Exports.
- */
-export { isMarkdown };
diff --git a/packages/toc/src/utils/markdown.ts b/packages/toc/src/utils/markdown.ts
new file mode 100644
index 000000000000..603d4473cf13
--- /dev/null
+++ b/packages/toc/src/utils/markdown.ts
@@ -0,0 +1,266 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { IMarkdownParser, renderMarkdown } from '@jupyterlab/rendermime';
+import { TableOfContents } from '../tokens';
+
+/**
+ * Markdown heading
+ */
+export interface IMarkdownHeading extends TableOfContents.IHeading {
+  /**
+   * Heading line
+   */
+  line: number;
+
+  /**
+   * Raw string containing the heading
+   */
+  raw: string;
+}
+
+/**
+ * Build the heading html id.
+ *
+ * @param raw Raw markdown heading
+ * @param level Heading level
+ */
+export async function getHeadingId(
+  parser: IMarkdownParser,
+  raw: string,
+  level: number
+): Promise<string | null> {
+  try {
+    const innerHTML = await parser.render(raw);
+
+    if (!innerHTML) {
+      return null;
+    }
+
+    const container = document.createElement('div');
+    container.innerHTML = innerHTML;
+    const header = container.querySelector(`h${level}`);
+    if (!header) {
+      return null;
+    }
+
+    return renderMarkdown.createHeaderId(header);
+  } catch (reason) {
+    console.error('Failed to parse a heading.', reason);
+  }
+
+  return null;
+}
+
+/**
+ * Parses the provided string and returns a list of headings.
+ *
+ * @param text - Input text
+ * @returns List of headings
+ */
+export function getHeadings(text: string): IMarkdownHeading[] {
+  // Split the text into lines:
+  const lines = text.split('\n');
+
+  // Iterate over the lines to get the header level and text for each line:
+  const headings = new Array<IMarkdownHeading>();
+  let isCodeBlock;
+  let lineIdx = 0;
+
+  // Don't check for Markdown headings if in a YAML frontmatter block.
+  // We can only start a frontmatter block on the first line of the file.
+  // At other positions in a markdown file, '---' represents a horizontal rule.
+  if (lines[lineIdx] === '---') {
+    // Search for another '---' and treat that as the end of the frontmatter.
+    // If we don't find one, treat the file as containing no frontmatter.
+    for (
+      let frontmatterEndLineIdx = lineIdx + 1;
+      frontmatterEndLineIdx < lines.length;
+      frontmatterEndLineIdx++
+    ) {
+      if (lines[frontmatterEndLineIdx] === '---') {
+        lineIdx = frontmatterEndLineIdx + 1;
+        break;
+      }
+    }
+  }
+
+  for (; lineIdx < lines.length; lineIdx++) {
+    const line = lines[lineIdx];
+
+    if (line === '') {
+      // Bail early
+      continue;
+    }
+
+    // Don't check for Markdown headings if in a code block
+    if (line.startsWith('```')) {
+      isCodeBlock = !isCodeBlock;
+    }
+    if (isCodeBlock) {
+      continue;
+    }
+
+    const heading = parseHeading(line, lines[lineIdx + 1]); // append the next line to capture alternative style Markdown headings
+
+    if (heading) {
+      headings.push({
+        ...heading,
+        line: lineIdx
+      });
+    }
+  }
+  return headings;
+}
+
+const MARKDOWN_MIME_TYPE = [
+  'text/x-ipythongfm',
+  'text/x-markdown',
+  'text/x-gfm',
+  'text/markdown'
+];
+
+/**
+ * Returns whether a MIME type corresponds to a Markdown flavor.
+ *
+ * @param mime - MIME type string
+ * @returns boolean indicating whether a provided MIME type corresponds to a Markdown flavor
+ *
+ * @example
+ * const bool = isMarkdown('text/markdown');
+ * // returns true
+ *
+ * @example
+ * const bool = isMarkdown('text/plain');
+ * // returns false
+ */
+export function isMarkdown(mime: string): boolean {
+  return MARKDOWN_MIME_TYPE.includes(mime);
+}
+
+/**
+ * Interface describing a parsed heading result.
+ *
+ * @private
+ */
+interface IHeader {
+  /**
+   * Heading text.
+   */
+  text: string;
+
+  /**
+   * Heading level.
+   */
+  level: number;
+
+  /**
+   * Raw string containing the heading
+   */
+  raw: string;
+
+  /**
+   * Whether the heading is marked to skip or not
+   */
+  skip: boolean;
+}
+
+/**
+ * Parses a heading, if one exists, from a provided string.
+ *
+ * ## Notes
+ *
+ * -   Heading examples:
+ *
+ *     -   Markdown heading:
+ *
+ *         ```
+ *         # Foo
+ *         ```
+ *
+ *     -   Markdown heading (alternative style):
+ *
+ *         ```
+ *         Foo
+ *         ===
+ *         ```
+ *
+ *         ```
+ *         Foo
+ *         ---
+ *         ```
+ *
+ *     -   HTML heading:
+ *
+ *         ```
+ *         <h3>Foo</h3>
+ *         ```
+ *
+ * @private
+ * @param line - Line to parse
+ * @param nextLine - The line after the one to parse
+ * @returns heading info
+ *
+ * @example
+ * const out = parseHeading('### Foo\n');
+ * // returns {'text': 'Foo', 'level': 3}
+ *
+ * @example
+ * const out = parseHeading('Foo\n===\n');
+ * // returns {'text': 'Foo', 'level': 1}
+ *
+ * @example
+ * const out = parseHeading('<h4>Foo</h4>\n');
+ * // returns {'text': 'Foo', 'level': 4}
+ *
+ * @example
+ * const out = parseHeading('Foo');
+ * // returns null
+ */
+function parseHeading(line: string, nextLine?: string): IHeader | null {
+  // Case: Markdown heading
+  let match = line.match(/^([#]{1,6}) (.*)/);
+  if (match) {
+    return {
+      text: cleanTitle(match[2]),
+      level: match[1].length,
+      raw: line,
+      skip: skipHeading.test(match[0])
+    };
+  }
+  // Case: Markdown heading (alternative style)
+  if (nextLine) {
+    match = nextLine.match(/^ {0,3}([=]{2,}|[-]{2,})\s*$/);
+    if (match) {
+      return {
+        text: cleanTitle(line),
+        level: match[1][0] === '=' ? 1 : 2,
+        raw: [line, nextLine].join('\n'),
+        skip: skipHeading.test(line)
+      };
+    }
+  }
+  // Case: HTML heading (WARNING: this is not particularly robust, as HTML headings can span multiple lines)
+  match = line.match(/<h([1-6]).*>(.*)<\/h\1>/i);
+  if (match) {
+    return {
+      text: match[2],
+      level: parseInt(match[1], 10),
+      skip: skipHeading.test(match[0]),
+      raw: line
+    };
+  }
+
+  return null;
+}
+
+function cleanTitle(heading: string): string {
+  // take special care to parse Markdown links into raw text
+  return heading.replace(/\[(.+)\]\(.+\)/g, '$1');
+}
+
+/**
+ * Ignore title with html tag with a class name equal to `jp-toc-ignore` or `tocSkip`
+ */
+const skipHeading =
+  /<\w+\s(.*?\s)?class="(.*?\s)?(jp-toc-ignore|tocSkip)(\s.*?)?"(\s.*?)?>/;
diff --git a/packages/toc/src/utils/numbering_dictionary.ts b/packages/toc/src/utils/numbering_dictionary.ts
deleted file mode 100644
index 1cf65eb40b48..000000000000
--- a/packages/toc/src/utils/numbering_dictionary.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * Interface describing a numbering dictionary.
- *
- * @private
- */
-interface INumberingDictionary {
-  /**
-   * Level numbering.
-   */
-  [level: number]: number;
-}
-
-/**
- * Exports.
- */
-export { INumberingDictionary };
diff --git a/packages/toc/src/utils/parse_heading.ts b/packages/toc/src/utils/parse_heading.ts
deleted file mode 100644
index a4ee6a6e031a..000000000000
--- a/packages/toc/src/utils/parse_heading.ts
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * Interface describing a parsed heading result.
- *
- * @private
- */
-interface IHeading {
-  /**
-   * Heading text.
-   */
-  text: string;
-
-  /**
-   * Heading level.
-   */
-  level: number;
-
-  /**
-   * Heading type.
-   */
-  type: 'html' | 'markdown' | 'markdown-alt';
-}
-
-/**
- * Parses a heading, if one exists, from a provided string.
- *
- * ## Notes
- *
- * -   Heading examples:
- *
- *     -   Markdown heading:
- *
- *         ```
- *         # Foo
- *         ```
- *
- *     -   Markdown heading (alternative style):
- *
- *         ```
- *         Foo
- *         ===
- *         ```
- *
- *         ```
- *         Foo
- *         ---
- *         ```
- *
- *     -   HTML heading:
- *
- *         ```
- *         <h3>Foo</h3>
- *         ```
- *
- * @private
- * @param str - input text
- * @returns heading info
- *
- * @example
- * const out = parseHeading('### Foo\n');
- * // returns {'text': 'Foo', 'level': 3, 'type': 'markdown'}
- *
- * @example
- * const out = parseHeading('Foo\n===\n');
- * // returns {'text': 'Foo', 'level': 1, 'type': 'markdown-alt'}
- *
- * @example
- * const out = parseHeading('<h4>Foo</h4>\n');
- * // returns {'text': 'Foo', 'level': 4, 'type': 'html'}
- *
- * @example
- * const out = parseHeading('Foo');
- * // returns null
- */
-function parseHeading(str: string): IHeading | null {
-  const lines = str.split('\n');
-
-  // Case: Markdown heading
-  let match = lines[0].match(/^([#]{1,6}) (.*)/);
-  if (match) {
-    return {
-      text: match[2].replace(/\[(.+)\]\(.+\)/g, '$1'), // take special care to parse Markdown links into raw text
-      level: match[1].length,
-      type: 'markdown'
-    };
-  }
-  // Case: Markdown heading (alternative style)
-  if (lines.length > 1) {
-    match = lines[1].match(/^ {0,3}([=]{2,}|[-]{2,})\s*$/);
-    if (match) {
-      return {
-        text: lines[0].replace(/\[(.+)\]\(.+\)/g, '$1'), // take special care to parse Markdown links into raw text
-        level: match[1][0] === '=' ? 1 : 2,
-        type: 'markdown-alt'
-      };
-    }
-  }
-  // Case: HTML heading (WARNING: this is not particularly robust, as HTML headings can span multiple lines)
-  match = lines[0].match(/<h([1-6]).*>(.*)<\/h\1>/i);
-  if (match) {
-    return {
-      text: match[2],
-      level: parseInt(match[1], 10),
-      type: 'html'
-    };
-  }
-  return null;
-}
-
-/**
- * Exports.
- */
-export { parseHeading };
diff --git a/packages/toc/src/utils/sanitizer_options.ts b/packages/toc/src/utils/sanitizer_options.ts
deleted file mode 100644
index 68699892628e..000000000000
--- a/packages/toc/src/utils/sanitizer_options.ts
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-/**
- * Allowed HTML tags and associated attributes for ToC entries when sanitizing HTML headings.
- *
- * ## Notes
- *
- * -   We specifically disallow anchor tags, since we are adding our own.
- *
- * @private
- */
-const sanitizerOptions = {
-  allowedTags: [
-    'p',
-    'blockquote',
-    'b',
-    'i',
-    'strong',
-    'em',
-    'strike',
-    'code',
-    'br',
-    'div',
-    'span',
-    'pre',
-    'del'
-  ],
-  allowedAttributes: {
-    // Allow "class" attribute for <code> tags.
-    code: ['class'],
-    // Allow "class" attribute for <span> tags.
-    span: ['class'],
-    // Allow "class" attribute for <div> tags.
-    div: ['class'],
-    // Allow "class" attribute for <p> tags.
-    p: ['class'],
-    // Allow "class" attribute for <pre> tags.
-    pre: ['class']
-  }
-};
-
-/**
- * Exports.
- */
-export { sanitizerOptions };
diff --git a/packages/toc/style/base.css b/packages/toc/style/base.css
index c7149f1a8385..ec32191be179 100644
--- a/packages/toc/style/base.css
+++ b/packages/toc/style/base.css
@@ -7,26 +7,8 @@
 | Table of Contents
 |----------------------------------------------------------------------------*/
 
-.jp-TableOfContents-content {
-  flex: 1 1 auto;
-  margin: 0;
-  padding: 0;
-  list-style-type: none;
-  overflow: auto;
-  background-color: var(--jp-layout-color1);
-}
-
-.jp-TableOfContents-content li {
-  display: flex;
-  flex-direction: row;
-  padding: 4px 12px;
-  -webkit-user-select: none;
-  -moz-user-select: none;
-  -ms-user-select: none;
-  user-select: none;
-  cursor: pointer;
-  padding-top: 8px;
-  padding-bottom: 8px;
+:root {
+  --jp-private-toc-active-width: 4px;
 }
 
 .jp-TableOfContents {
@@ -38,405 +20,98 @@
   height: 100%;
 }
 
-.jp-TableOfContents .jp-stack-panel-header {
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
-  flex: 0 0 auto;
-  font-size: var(--jp-ui-font-size0);
-  font-weight: 600;
-  letter-spacing: 1px;
-  margin: 0px;
-  padding: 8px 12px;
-  text-transform: uppercase;
-}
-
-.jp-TableOfContents-codeContainer {
-  overflow: hidden;
-}
-
-.jp-TableOfContents-code {
-  font-size: 9px;
-  max-height: 70px;
-}
-
-.cm-toc .CodeMirror {
-  font-size: 9px;
-  z-index: 0;
-  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color);
-  border-radius: 0px;
-  background: var(--jp-cell-editor-background);
-  max-width: 100%;
-  max-height: 36px;
+.jp-TableOfContents-placeholder {
+  text-align: center;
 }
 
-.toc-code-span {
-  width: 100%;
-  max-width: 100%;
-  overflow: hidden;
+.jp-TableOfContents-placeholderContent {
+  color: var(--jp-content-font-color2);
+  padding: 8px;
 }
 
-.cm-toc .CodeMirror-scroll {
-  overflow: hidden !important;
+.jp-TableOfContents-placeholderContent > h3 {
+  margin-bottom: var(--jp-content-heading-margin-bottom);
 }
 
-.CodeMirror-scroll::-webkit-scrollbar-track {
-  background-color: transparent;
+.jp-TableOfContents .jp-SidePanel-content {
+  overflow-y: auto;
 }
 
-.toc-toolbar-icon,
-.toc-toolbar-icon-selected {
-  float: left;
-  padding: 0px;
+.jp-TableOfContents-tree {
   margin: 4px;
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  background-repeat: no-repeat;
-  background-color: none;
-  background-size: 100%;
-  background-position: center;
-  height: 24px;
-  width: 24px;
-  margin: 4px;
-  border-radius: 2px;
 }
 
-[data-jp-theme-light='true'] .toc-toolbar-icon:hover {
-  background-color: var(--jp-input-background);
-}
-
-[data-jp-theme-light='false'] .toc-toolbar-icon:hover {
-  background-color: #3a3a3a;
+.jp-TableOfContents ol {
+  list-style-type: none;
 }
 
-[data-jp-theme-light='true'] .toc-toolbar-icon-selected {
-  background-color: var(--jp-layout-color2);
+/* stylelint-disable-next-line selector-max-type */
+.jp-TableOfContents li > ol {
+  /* Align left border with triangle icon center */
+  padding-left: 11px;
 }
 
-[data-jp-theme-light='false'] .toc-toolbar-icon-selected {
-  background-color: #565656;
+.jp-TableOfContents-content {
+  /* left margin for the active heading indicator */
+  margin: 0 0 0 var(--jp-private-toc-active-width);
+  padding: 0;
+  background-color: var(--jp-layout-color1);
 }
 
-.toc-code-cell-prompt {
-  flex: 0 0 27px;
-  color: var(--jp-cell-prompt-not-active-font-color);
-  opacity: var(--jp-cell-prompt-not-active-opacity);
-  font-family: var(--jp-cell-prompt-font-family);
-  padding: var(--jp-code-padding);
-  padding-right: 0px;
-  padding-left: 0px;
-  letter-spacing: var(--jp-cell-prompt-letter-spacing);
-  line-height: var(--jp-code-line-height);
-  font-size: 8px;
-  border: var(--jp-border-width) solid transparent;
-  text-align: left;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
+.jp-tocItem {
   -webkit-user-select: none;
   -moz-user-select: none;
   -ms-user-select: none;
   user-select: none;
 }
 
-.toc-toolbar {
-  position: relative;
-  width: 100%;
-  margin: 0px;
-  user-select: none;
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
-  height: 36px;
-  display: flex;
-  align-items: center;
-}
-
-.toc-code-cell-div {
-  display: inline-flex;
-  width: 100%;
-}
-
-.toc-entry-holder {
-  width: 100%;
+.jp-tocItem-heading {
   display: flex;
-  flex-direction: row;
-  padding: 0px;
-  margin: 0px;
-  overflow: visible;
-}
-
-.toc-Collapser-child {
-  display: block;
-  width: 100%;
-  box-sizing: border-box;
-  position: absolute;
-  top: 0px;
-  bottom: 0px;
-}
-
-.toc-entry-holder:hover .toc-Collapser-child {
-  box-shadow: var(--jp-elevation-z2);
-  background: var(--jp-brand-color1);
-  opacity: var(--jp-cell-collapser-not-active-hover-opacity);
-}
-
-.toc-active-cell .toc-Collapser-child {
-  background: var(--jp-brand-color1);
-}
-
-.toc-active-cell .toc-Collapser-child:hover {
-  background: var(--jp-brand-color0);
-  opacity: 1;
-}
-
-.toc-active-cell:hover .toc-Collapser-child {
-  background: var(--jp-brand-color0);
-  opacity: 1;
-}
-
-.toc-Collapser-child {
-  background: transparent;
-}
-
-.toc-Collapser-child:hover {
-  box-shadow: var(--jp-elevation-z2);
-  background: var(--jp-brand-color1);
-  opacity: var(--jp-cell-collapser-not-active-hover-opacity);
-}
-
-.toc-twist-placeholder {
-  max-width: 10px;
-  opacity: 0;
-  overflow: hidden;
-}
-
-.cm-toc-plain-span {
-  width: 100%;
-  white-space: pre-wrap;
-  display: block;
-}
-
-.cm-toc-plain-textarea {
-  font-size: 9px;
-  z-index: 0;
-  border: var(--jp-border-width) solid var(--jp-cell-editor-border-color2);
-  border-radius: 0px;
-  background: var(--jp-cell-editor-background);
-  width: calc(100% - 9px);
-  overflow: hidden;
-  max-height: 74px;
-  resize: none;
-  font-family: var(--jp-code-font-family);
-  outline: none;
-  user-select: none;
-  white-space: pre;
-  padding: var(--jp-code-padding);
-}
-
-.cm-toc .CodeMirror-sizer {
-  min-width: 0px !important;
-  min-height: 0px !important;
-  margin-bottom: 0px !important;
-}
-
-.cm-toc .CodeMirror-line {
-  white-space: pre-wrap;
   cursor: pointer;
 }
 
-.cm-toc .CodeMirror-lines {
-  cursor: pointer;
-}
-
-.toc-tag-dropdown {
-  display: flex;
-  width: 100%;
-}
-
-.toc-tag-dropdown-button {
-  margin-left: auto;
-}
-
-.toc-tags-container {
-  padding: 4px;
-  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
-}
-
-.toc-clear-button {
-  font-size: 12px;
-  color: var(--jp-ui-font-color1);
-  padding-left: 15px;
-  user-select: none;
-  float: right;
-}
-
-.toc-clear-button:hover {
-  font-size: 12px;
-  color: var(--jp-ui-font-color2);
-  padding-left: 15px;
-  user-select: none;
-}
-
-.toc-filter-button {
-  background-color: var(--jp-layout-color1);
-  border: solid 1px var(--jp-layout-color4);
-  border-radius: 3px;
-  width: fit-content;
-  padding: 5px;
-  padding-left: 6px;
-  padding-right: 6px;
-  margin-right: 17px;
-  color: var(--jp-layout-color5);
-  float: right;
-  font-size: 12px;
-  user-select: none;
-  margin-bottom: 13px;
-}
-
-.toc-filter-button:hover {
-  background-color: var(--jp-layout-color4);
-  border: solid 1px var(--jp-layout-color4);
-  color: var(--jp-layout-color1);
-}
-
-.toc-filter-button-na {
-  background-color: var(--jp-layout-color1);
-  border: solid 1px var(--jp-ui-font-color3);
-  border-radius: 3px;
-  width: fit-content;
-  padding: 5px;
-  padding-left: 6px;
-  padding-right: 6px;
-  margin-right: 17px;
-  color: var(--jp-ui-font-color3);
-  float: right;
-  font-size: 12px;
-  user-select: none;
-  margin-bottom: 13px;
-}
-
-.toc-no-tags-div {
-  font-size: 12px;
-  padding: 3px;
-  padding-bottom: 6px;
-  margin: auto;
-  color: var(--jp-layout-color4);
-}
-
-.toc-tags-container {
-  width: 100%;
-}
-
-.jp-TableOfContents-content code {
-  font-size: inherit;
-}
-
-.toc-cell-item {
-  padding-left: 10px;
-  font-size: var(--jp-ui-font-size1);
-  /* Push ellipse button and execution indicator to right */
-  margin-right: auto;
-}
-
-/* styles for tags */
-
-.toc-tag-label {
-  font-size: 11px;
-  max-width: 100%;
-  text-overflow: ellipsis;
-  display: inline-block;
-  overflow: hidden;
-  box-sizing: border-box;
-  padding-top: 0px;
-  margin-top: -1px;
-  margin-bottom: 0px;
-  user-select: none;
-}
-
-.toc-tag {
-  box-sizing: border-box;
-  height: 24px;
-  border-radius: 20px;
-  padding: 10px;
-  padding-bottom: 4px;
-  padding-top: 5px;
-  margin: 3px;
-  width: fit-content;
-  max-width: calc(100% - 25px);
-}
-
-.toc-selected-tag {
-  color: white;
-  background-color: #2196f3;
-  outline: none;
-}
-
-.toc-unselected-tag {
+.jp-tocItem-heading:hover {
   background-color: var(--jp-layout-color2);
-  outline: none;
 }
 
-.toc-tag-holder {
-  display: flex;
-  flex-wrap: wrap;
-  height: fit-content;
-  padding-bottom: 6px;
-  padding-right: 20px;
-  padding-left: 9px;
-  padding-top: 6px;
-}
-
-.toc-Ellipses {
-  box-sizing: border-box;
-  height: 16px;
-}
-
-.toc-Ellipses:hover {
-  border: var(--jp-border-width) solid var(--jp-border-color1);
-  box-shadow: 0px 0px 2px 0px rgba(0, 0, 0, 0.25);
-  background-color: var(--jp-layout-color0);
+.jp-tocItem-content {
+  display: block;
+  padding: 4px 0;
+  white-space: nowrap;
+  text-overflow: ellipsis;
+  overflow-x: hidden;
 }
 
-/*
- * Execution indicator
- */
-.toc-entry-holder::after {
-  content: '';
-  /* Must be identical to form a circle */
-  width: 12px;
-  height: 12px;
-  margin: 2px;
+.jp-tocItem-collapser {
+  height: 20px;
+  margin: 2px 2px 0;
+  padding: 0;
   background: none;
   border: none;
-  flex: auto 0 0;
-}
-
-.toc-entry-holder[data-running='0']::after {
-  border-radius: 50%;
-  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
-  background: none;
+  cursor: pointer;
 }
 
-.toc-entry-holder[data-running='1']::after {
-  border-radius: 50%;
-  border: var(--jp-border-width) solid var(--jp-inverse-layout-color3);
-  background-color: var(--jp-inverse-layout-color3);
+.jp-tocItem-collapser:hover {
+  background-color: var(--jp-layout-color3);
 }
 
-/* 
- * Indentation levels
- */
-
-.toc-level-size-2 {
-  margin-left: 16px;
-}
+/* Active heading indicator */
 
-.toc-level-size-3 {
-  margin-left: 36px;
+.jp-tocItem-heading::before {
+  content: ' ';
+  background: transparent;
+  width: var(--jp-private-toc-active-width);
+  height: 24px;
+  position: absolute;
+  left: 0;
+  border-radius: var(--jp-border-radius);
 }
 
-.toc-level-size-4 {
-  margin-left: 56px;
+.jp-tocItem-heading.jp-tocItem-active::before {
+  background-color: var(--jp-brand-color1);
 }
 
-.toc-level-size-5 {
-  margin-left: 76px;
+.jp-tocItem-heading:hover.jp-tocItem-active::before {
+  background: var(--jp-brand-color0);
+  opacity: 1;
 }
diff --git a/packages/toc/style/index.css b/packages/toc/style/index.css
index 93abbd756e91..d8149c93b747 100644
--- a/packages/toc/style/index.css
+++ b/packages/toc/style/index.css
@@ -9,10 +9,4 @@
 @import url('~@jupyterlab/apputils/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
 @import url('~@jupyterlab/docregistry/style/index.css');
-@import url('~@jupyterlab/docmanager/style/index.css');
-@import url('~@jupyterlab/cells/style/index.css');
-@import url('~@jupyterlab/fileeditor/style/index.css');
-@import url('~@jupyterlab/markdownviewer/style/index.css');
-@import url('~@jupyterlab/notebook/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/toc/style/index.js b/packages/toc/style/index.js
index 921cc7e90ad1..89ea34cd4bac 100644
--- a/packages/toc/style/index.js
+++ b/packages/toc/style/index.js
@@ -9,10 +9,5 @@ import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/apputils/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 import '@jupyterlab/docregistry/style/index.js';
-import '@jupyterlab/docmanager/style/index.js';
-import '@jupyterlab/cells/style/index.js';
-import '@jupyterlab/fileeditor/style/index.js';
-import '@jupyterlab/markdownviewer/style/index.js';
-import '@jupyterlab/notebook/style/index.js';
 
 import './base.css';
diff --git a/packages/toc/test/markdown.spec.ts b/packages/toc/test/markdown.spec.ts
new file mode 100644
index 000000000000..af0592d948cd
--- /dev/null
+++ b/packages/toc/test/markdown.spec.ts
@@ -0,0 +1,404 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { TableOfContentsUtils } from '@jupyterlab/toc';
+
+describe('TableOfContentsUtils', () => {
+  describe('Markdown', () => {
+    describe('#getHeadings', () => {
+      it.each<[string, TableOfContentsUtils.Markdown.IMarkdownHeading[]]>([
+        [
+          '# Title',
+          [
+            {
+              text: 'Title',
+              level: 1,
+              line: 0,
+              raw: '# Title',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '## Title',
+          [
+            {
+              text: 'Title',
+              level: 2,
+              line: 0,
+              raw: '## Title',
+              prefix: '0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '### Title',
+          [
+            {
+              text: 'Title',
+              level: 3,
+              line: 0,
+              raw: '### Title',
+              prefix: '0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '#### Title',
+          [
+            {
+              text: 'Title',
+              level: 4,
+              line: 0,
+              raw: '#### Title',
+              prefix: '0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '##### Title',
+          [
+            {
+              text: 'Title',
+              level: 5,
+              line: 0,
+              raw: '##### Title',
+              prefix: '0.0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '###### Title',
+          [
+            {
+              text: 'Title',
+              level: 6,
+              line: 0,
+              raw: '###### Title',
+              prefix: '0.0.0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          'Title\n==',
+          [
+            {
+              text: 'Title',
+              level: 1,
+              line: 0,
+              raw: 'Title\n==',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          'Title\n--',
+          [
+            {
+              text: 'Title',
+              level: 2,
+              line: 0,
+              raw: 'Title\n--',
+              prefix: '0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h1>Title</h1>',
+          [
+            {
+              text: 'Title',
+              level: 1,
+              line: 0,
+              raw: '<h1>Title</h1>',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h2>Title</h2>',
+          [
+            {
+              text: 'Title',
+              level: 2,
+              line: 0,
+              raw: '<h2>Title</h2>',
+              prefix: '0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h3>Title</h3>',
+          [
+            {
+              text: 'Title',
+              level: 3,
+              line: 0,
+              raw: '<h3>Title</h3>',
+              prefix: '0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h4>Title</h4>',
+          [
+            {
+              text: 'Title',
+              level: 4,
+              line: 0,
+              raw: '<h4>Title</h4>',
+              prefix: '0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h5>Title</h5>',
+          [
+            {
+              text: 'Title',
+              level: 5,
+              line: 0,
+              raw: '<h5>Title</h5>',
+              prefix: '0.0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          '<h6>Title</h6>',
+          [
+            {
+              text: 'Title',
+              level: 6,
+              line: 0,
+              raw: '<h6>Title</h6>',
+              prefix: '0.0.0.0.0.1. ',
+              skip: false
+            }
+          ]
+        ],
+        ['\nTitle\n\n==', []],
+        ['\nTitle\n\n--', []],
+        ['```\n# Title\n```', []],
+        ['```\nTitle\n--\n```', []],
+        ['```\n<h1>Title</h1>\n```', []],
+        ['---\n<h1>Title</h1>\n---', []],
+        ['---\n# Title\n---', []],
+        [
+          `---
+<h1>Ignored</h1>
+---
+# Title`,
+          [
+            {
+              text: 'Title',
+              level: 1,
+              line: 3,
+              raw: '# Title',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          `---
+front: matter
+---
+
+# Header
+
+> this has whitespace _after_`,
+          [
+            {
+              text: 'Header',
+              level: 1,
+              line: 4,
+              raw: '# Header',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          `---
+front: matter
+---
+# Header
+
+---
+# Header between horizontal rules
+---
+
+# Header after horizontal rules`,
+          [
+            {
+              text: 'Header',
+              level: 1,
+              line: 3,
+              raw: '# Header',
+              prefix: '1. ',
+              skip: false
+            },
+            {
+              text: 'Header between horizontal rules',
+              level: 1,
+              line: 6,
+              raw: '# Header between horizontal rules',
+              prefix: '2. ',
+              skip: false
+            },
+            {
+              text: 'Header after horizontal rules',
+              level: 1,
+              line: 9,
+              raw: '# Header after horizontal rules',
+              prefix: '3. ',
+              skip: false
+            }
+          ]
+        ],
+        [
+          `---
+# Header`,
+          [
+            {
+              text: 'Header',
+              level: 1,
+              line: 1,
+              raw: '# Header',
+              prefix: '1. ',
+              skip: false
+            }
+          ]
+        ]
+      ])('should extract headings from %s', (src, headers) => {
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.Markdown.getHeadings(src),
+          {
+            maximalDepth: 6,
+            numberHeaders: true
+          }
+        );
+        expect(headings).toHaveLength(headers.length);
+
+        for (let i = 0; i < headers.length; i++) {
+          expect(headings[i]).toEqual(headers[i]);
+        }
+      });
+    });
+
+    it.each<[string]>([
+      ['### Title <a class="tocSkip"></a>'],
+      ['### Title <a title="noisy title" class="jp-toc-ignore"></a>'],
+      ['Title <a class="tocSkip"></a>\n=='],
+      ['Title <a class="jp-toc-ignore" title="noisy title"></a>\n=='],
+      ['Title <a class="tocSkip"></a>\n--'],
+      ['Title <a class="jp-toc-ignore"></a>\n--'],
+      ['<h4 class="a tocSkip">Title</h4>'],
+      ['<h4 class="jp-toc-ignore b">Title</h4>']
+    ])('should skip the heading from %s', src => {
+      const headings = TableOfContentsUtils.Markdown.getHeadings(src);
+      expect(headings).toHaveLength(1);
+      expect(headings[0].skip).toEqual(true);
+    });
+
+    it('should clean the title', () => {
+      const src = '## Title [with](https://jupyter.org "title") link';
+      const headings = TableOfContentsUtils.Markdown.getHeadings(src);
+      expect(headings).toHaveLength(1);
+      expect(headings[0]).toEqual({
+        level: 2,
+        text: 'Title with link',
+        line: 0,
+        raw: src,
+        skip: false
+      });
+    });
+
+    it.each<[number]>([[1], [2], [3], [4], [5], [6]])(
+      'should limit the level to %d',
+      maximalDepth => {
+        const src = `# h1
+## h2
+### h3
+#### h4
+##### h5
+###### h6`;
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.Markdown.getHeadings(src),
+          {
+            maximalDepth
+          }
+        );
+        expect(headings).toHaveLength(maximalDepth);
+        expect(headings[headings.length - 1].level).toEqual(maximalDepth);
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should have prefix or not`,
+      numberHeaders => {
+        const src = '### h3';
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.Markdown.getHeadings(src),
+          {
+            numberHeaders
+          }
+        );
+        expect(headings).toHaveLength(1);
+        expect(headings[0].prefix).toEqual(numberHeaders ? '0.0.1. ' : '');
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should number h1 or not`,
+      numberingH1 => {
+        const src = '# h1';
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.Markdown.getHeadings(src),
+          {
+            numberingH1,
+            numberHeaders: true
+          }
+        );
+        expect(headings).toHaveLength(1);
+        expect(headings[0].prefix).toEqual(numberingH1 ? '1. ' : '');
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should respect base number`,
+      numberingH1 => {
+        const src = `# h1
+## h2`;
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.Markdown.getHeadings(src),
+          {
+            numberingH1,
+            numberHeaders: true,
+            baseNumbering: 3
+          }
+        );
+        expect(headings).toHaveLength(2);
+        expect(headings[0].prefix).toEqual(numberingH1 ? '3. ' : '');
+        expect(headings[1].prefix).toEqual(numberingH1 ? '3.1. ' : '3. ');
+      }
+    );
+  });
+});
diff --git a/packages/toc/test/toc.spec.ts b/packages/toc/test/toc.spec.ts
deleted file mode 100644
index 83697d5ac3fa..000000000000
--- a/packages/toc/test/toc.spec.ts
+++ /dev/null
@@ -1,306 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { WidgetTracker } from '@jupyterlab/apputils';
-import {
-  CodeMirrorEditorFactory,
-  CodeMirrorMimeTypeService
-} from '@jupyterlab/codemirror';
-import { DocumentManager } from '@jupyterlab/docmanager';
-import {
-  DocumentRegistry,
-  DocumentWidget,
-  IDocumentWidget,
-  TextModelFactory
-} from '@jupyterlab/docregistry';
-import { FileEditor, FileEditorFactory } from '@jupyterlab/fileeditor';
-import {
-  MarkdownDocument,
-  MarkdownViewerFactory
-} from '@jupyterlab/markdownviewer';
-import {
-  NotebookModelFactory,
-  NotebookPanel,
-  NotebookTracker,
-  NotebookWidgetFactory
-} from '@jupyterlab/notebook';
-import { RenderMimeRegistry } from '@jupyterlab/rendermime';
-import { ServiceManager } from '@jupyterlab/services';
-import { defaultRenderMime, Mock, NBTestUtils } from '@jupyterlab/testutils';
-import * as ToC from '@jupyterlab/toc';
-import { UUID } from '@lumino/coreutils';
-
-let manager: DocumentManager;
-let tocWidget: ToC.TableOfContents;
-let registry: DocumentRegistry;
-let services: ServiceManager.IManager;
-let factory: TextModelFactory;
-
-beforeAll(async () => {
-  jest.setTimeout(20000);
-  const opener: DocumentManager.IWidgetOpener = {
-    open: widget => {
-      // no-op
-    }
-  };
-  factory = new TextModelFactory();
-  registry = new DocumentRegistry({
-    textModelFactory: factory
-  });
-  const contentFactory = NBTestUtils.createNotebookPanelFactory();
-  const notebookFactory = new NotebookModelFactory({});
-  registry.addModelFactory(notebookFactory);
-  registry.addWidgetFactory(
-    new NotebookWidgetFactory({
-      modelName: 'notebook',
-      contentFactory,
-      fileTypes: ['notebook'],
-      rendermime: defaultRenderMime(),
-      mimeTypeService: NBTestUtils.mimeTypeService,
-      name: 'notebook'
-    })
-  );
-  registry.addWidgetFactory(
-    new FileEditorFactory({
-      editorServices: {
-        factoryService: new CodeMirrorEditorFactory(),
-        mimeTypeService: new CodeMirrorMimeTypeService()
-      },
-      factoryOptions: {
-        name: 'editor',
-        fileTypes: ['*'],
-        defaultFor: ['*']
-      }
-    })
-  );
-  registry.addWidgetFactory(
-    new MarkdownViewerFactory({
-      rendermime: defaultRenderMime(),
-      name: 'Markdown Preview',
-      primaryFileType: registry.getFileType('markdown'),
-      fileTypes: ['markdown'],
-      defaultRendered: []
-    })
-  );
-  services = new Mock.ServiceManagerMock();
-  manager = new DocumentManager({
-    registry,
-    opener,
-    manager: services
-  });
-});
-
-describe('@jupyterlab/toc', () => {
-  describe('TableOfContents', () => {
-    describe('#constructor', () => {
-      it('should construct a new ToC widget', () => {
-        tocWidget = new ToC.TableOfContents({
-          docmanager: manager,
-          rendermime: new RenderMimeRegistry()
-        });
-        expect(tocWidget).toBeInstanceOf(ToC.TableOfContents);
-      });
-    });
-  });
-
-  describe('TableOfContentsRegistry', () => {
-    let registry: ToC.TableOfContentsRegistry;
-
-    beforeAll(() => {
-      registry = new ToC.TableOfContentsRegistry();
-    });
-
-    describe('Notebook Generator: IGenerator<NotebookPanel>', () => {
-      let notebookTracker: NotebookTracker;
-      let notebookGenerator: ToC.TableOfContentsRegistry.IGenerator<NotebookPanel>;
-      let notebookWidget: NotebookPanel;
-
-      it('should create a notebook generator', () => {
-        notebookTracker = new NotebookTracker({
-          namespace: 'notebook'
-        });
-        notebookGenerator = ToC.createNotebookGenerator(
-          notebookTracker,
-          tocWidget,
-          NBTestUtils.defaultRenderMime().sanitizer
-        );
-      });
-
-      it('should add a notebook generator to the registry', () => {
-        registry.add(notebookGenerator);
-      });
-
-      it('should find the notebook generator', async () => {
-        const path = UUID.uuid4() + '.ipynb';
-        const newNotebookWidget = manager.createNew(path, 'notebook');
-        expect(newNotebookWidget).toBeInstanceOf(NotebookPanel);
-        notebookWidget = newNotebookWidget as NotebookPanel;
-        await notebookTracker.add(notebookWidget);
-        const foundNotebookGenerator = registry.find(notebookWidget);
-        expect(foundNotebookGenerator).toBeDefined();
-      });
-
-      it('should change current', async () => {
-        tocWidget.current = {
-          widget: notebookWidget,
-          generator: notebookGenerator
-        };
-        expect(tocWidget.current.widget).toBeInstanceOf(NotebookPanel);
-      });
-    });
-
-    describe('Markdown Generator: IGenerator<IDocumentWidget<FileEditor>>', () => {
-      let markdownTracker: WidgetTracker<IDocumentWidget<FileEditor>>;
-      let markdownGenerator: ToC.TableOfContentsRegistry.IGenerator<IDocumentWidget<
-        FileEditor
-      >>;
-      let markdownWidget: IDocumentWidget<FileEditor>;
-
-      it('should create a markdown generator', () => {
-        markdownTracker = new WidgetTracker<IDocumentWidget<FileEditor>>({
-          namespace: 'markdown'
-        });
-        markdownGenerator = ToC.createMarkdownGenerator(
-          markdownTracker,
-          tocWidget,
-          NBTestUtils.defaultRenderMime().sanitizer
-        );
-      });
-
-      it('should add a markdown generator to the registry', () => {
-        registry.add(markdownGenerator);
-      });
-
-      it('should find the markdown generator', async () => {
-        const path = UUID.uuid4() + '.md';
-        const newMarkdownWidget = manager.createNew(path);
-        expect(newMarkdownWidget).toBeInstanceOf(DocumentWidget);
-        markdownWidget = newMarkdownWidget as IDocumentWidget<FileEditor>;
-        await markdownTracker.add(markdownWidget);
-        const foundMarkdownGenerator = registry.find(markdownWidget);
-        expect(foundMarkdownGenerator).toBeDefined();
-      });
-
-      it('should change current', async () => {
-        tocWidget.current = {
-          widget: markdownWidget,
-          generator: markdownGenerator
-        };
-        expect(tocWidget.current.widget).toBeInstanceOf(DocumentWidget);
-      });
-    });
-
-    describe('Rendered Markdown Generator: IGenerator<MarkdownDocument>', () => {
-      let markdownTracker: WidgetTracker<MarkdownDocument>;
-      let markdownGenerator: ToC.TableOfContentsRegistry.IGenerator<MarkdownDocument>;
-      let markdownWidget: MarkdownDocument;
-
-      it('should create a markdown generator', () => {
-        markdownTracker = new WidgetTracker<MarkdownDocument>({
-          namespace: 'markdownviewer-widget'
-        });
-        markdownGenerator = ToC.createRenderedMarkdownGenerator(
-          markdownTracker,
-          tocWidget,
-          NBTestUtils.defaultRenderMime().sanitizer
-        );
-      });
-
-      it('should add a markdown generator to the registry', () => {
-        registry.add(markdownGenerator);
-      });
-
-      it('should find the markdown generator', async () => {
-        const path = UUID.uuid4() + '.md';
-        const newMarkdownWidget = manager.createNew(path, 'Markdown Preview');
-        expect(newMarkdownWidget).toBeInstanceOf(MarkdownDocument);
-        markdownWidget = newMarkdownWidget as MarkdownDocument;
-        await markdownTracker.add(markdownWidget);
-        const foundMarkdownGenerator = registry.find(markdownWidget);
-        expect(foundMarkdownGenerator).toBeDefined();
-      });
-
-      it('should change current', async () => {
-        tocWidget.current = {
-          widget: markdownWidget,
-          generator: markdownGenerator
-        };
-        expect(tocWidget.current.widget).toBeInstanceOf(MarkdownDocument);
-      });
-    });
-
-    describe('Latex Generator: IGenerator<IDocumentWidget<FileEditor>>', () => {
-      let latexTracker: WidgetTracker<IDocumentWidget<FileEditor>>;
-      let latexGenerator: ToC.TableOfContentsRegistry.IGenerator<IDocumentWidget<
-        FileEditor
-      >>;
-      let latexWidget: IDocumentWidget<FileEditor>;
-
-      it('should create a latex generator', () => {
-        latexTracker = new WidgetTracker<IDocumentWidget<FileEditor>>({
-          namespace: 'latex'
-        });
-        latexGenerator = ToC.createLatexGenerator(latexTracker);
-      });
-
-      it('should add a latex generator to the registry', () => {
-        registry.add(latexGenerator);
-      });
-
-      it('should find the latex generator', async () => {
-        const path = UUID.uuid4() + '.tex';
-        const newLatexWidget = manager.createNew(path);
-        expect(newLatexWidget).toBeInstanceOf(DocumentWidget);
-        latexWidget = newLatexWidget as IDocumentWidget<FileEditor>;
-        await latexTracker.add(latexWidget);
-        const foundLatexGenerator = registry.find(latexWidget);
-        expect(foundLatexGenerator).toBeDefined();
-      });
-
-      it('should change current', async () => {
-        tocWidget.current = {
-          widget: latexWidget,
-          generator: latexGenerator
-        };
-        expect(tocWidget.current.widget).toBeInstanceOf(DocumentWidget);
-      });
-    });
-
-    describe('Python Generator: IGenerator<IDocumentWidget<FileEditor>>', () => {
-      let pythonTracker: WidgetTracker<IDocumentWidget<FileEditor>>;
-      let pythonGenerator: ToC.TableOfContentsRegistry.IGenerator<IDocumentWidget<
-        FileEditor
-      >>;
-      let pythonWidget: IDocumentWidget<FileEditor>;
-
-      it('should create a python generator', () => {
-        pythonTracker = new WidgetTracker<IDocumentWidget<FileEditor>>({
-          namespace: 'python'
-        });
-        pythonGenerator = ToC.createPythonGenerator(pythonTracker);
-      });
-
-      it('should add a python generator to the registry', () => {
-        registry.add(pythonGenerator);
-      });
-
-      it('should find the python generator', async () => {
-        const path = UUID.uuid4() + '.py';
-        const newPythonWidget = manager.createNew(path);
-        expect(newPythonWidget).toBeInstanceOf(DocumentWidget);
-        pythonWidget = newPythonWidget as IDocumentWidget<FileEditor>;
-        await pythonTracker.add(pythonWidget);
-        const foundPythonGenerator = registry.find(pythonWidget);
-        expect(foundPythonGenerator).toBeDefined();
-      });
-
-      it('should change current', async () => {
-        tocWidget.current = {
-          widget: pythonWidget,
-          generator: pythonGenerator
-        };
-        expect(tocWidget.current.widget).toBeInstanceOf(DocumentWidget);
-      });
-    });
-  });
-});
diff --git a/packages/toc/test/utils.spec.ts b/packages/toc/test/utils.spec.ts
new file mode 100644
index 000000000000..5812736a8d72
--- /dev/null
+++ b/packages/toc/test/utils.spec.ts
@@ -0,0 +1,172 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { TableOfContentsUtils } from '@jupyterlab/toc';
+
+describe('TableOfContentsUtils', () => {
+  describe('#getHTMLHeadings', () => {
+    it.each<[string, TableOfContentsUtils.IHTMLHeading[]]>([
+      [
+        '<h1>Title</h1>',
+        [
+          {
+            text: 'Title',
+            level: 1,
+            id: null,
+            prefix: '1. ',
+            skip: false
+          }
+        ]
+      ],
+      [
+        '<h2>Title</h2>',
+        [
+          {
+            text: 'Title',
+            level: 2,
+            id: null,
+            prefix: '0.1. ',
+            skip: false
+          }
+        ]
+      ],
+      [
+        '<h3>Title</h3>',
+        [
+          {
+            text: 'Title',
+            level: 3,
+            id: null,
+            prefix: '0.0.1. ',
+            skip: false
+          }
+        ]
+      ],
+      [
+        '<h4 id="header-4-id">Title</h4>',
+        [
+          {
+            text: 'Title',
+            level: 4,
+            id: 'header-4-id',
+            prefix: '0.0.0.1. ',
+            skip: false
+          }
+        ]
+      ],
+      [
+        '<h5>Title</h5>',
+        [
+          {
+            text: 'Title',
+            level: 5,
+            id: null,
+            prefix: '0.0.0.0.1. ',
+            skip: false
+          }
+        ]
+      ],
+      [
+        '<h6 id="another-h6-id">Title</h6>',
+        [
+          {
+            text: 'Title',
+            level: 6,
+            id: 'another-h6-id',
+            prefix: '0.0.0.0.0.1. ',
+            skip: false
+          }
+        ]
+      ],
+      ['<h2 class="a jp-toc-ignore" title="noisy title">Title</h2>', []],
+      ['<h2 id="another-h6-id" class="tocSkip b">Title</h2>', []]
+    ])('should extract headings from %s', (src, headers) => {
+      const headings = TableOfContentsUtils.filterHeadings(
+        TableOfContentsUtils.getHTMLHeadings(src),
+        {
+          maximalDepth: 6,
+          numberHeaders: true
+        }
+      );
+      expect(headings).toHaveLength(headers.length);
+
+      for (let i = 0; i < headers.length; i++) {
+        expect(headings[i]).toEqual(headers[i]);
+      }
+    });
+
+    it.each<[number]>([[1], [2], [3], [4], [5], [6]])(
+      'should limit the level to %d',
+      maximalDepth => {
+        const src = `<h1>Title</h1>
+<h2>Title</h2>
+<h3>Title</h3>
+<h4>Title</h4>
+<h5>Title</h5>
+<h6>Title</h6>`;
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.getHTMLHeadings(src),
+          {
+            maximalDepth
+          }
+        );
+        expect(headings).toHaveLength(maximalDepth);
+        expect(headings[headings.length - 1].level).toEqual(maximalDepth);
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should have prefix or not`,
+      numberHeaders => {
+        const src = '<h3>Title</h3>';
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.getHTMLHeadings(src),
+          {
+            numberHeaders
+          }
+        );
+        expect(headings).toHaveLength(1);
+        expect(headings[0].prefix).toEqual(numberHeaders ? '0.0.1. ' : '');
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should number h1 or not`,
+      numberingH1 => {
+        const src = '<h1>Title</h1>';
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.getHTMLHeadings(src),
+          {
+            numberingH1,
+            numberHeaders: true
+          }
+        );
+        expect(headings).toHaveLength(1);
+        expect(headings[0].prefix).toEqual(numberingH1 ? '1. ' : '');
+      }
+    );
+
+    it.each<[boolean]>([[true], [false]])(
+      `should respect base number`,
+      numberingH1 => {
+        const src = `<h1>Title</h1>
+<h2>Title</h2>`;
+
+        const headings = TableOfContentsUtils.filterHeadings(
+          TableOfContentsUtils.getHTMLHeadings(src),
+          {
+            numberHeaders: true,
+            numberingH1,
+            baseNumbering: 3
+          }
+        );
+        expect(headings).toHaveLength(2);
+        expect(headings[0].prefix).toEqual(numberingH1 ? '3. ' : '');
+        expect(headings[1].prefix).toEqual(numberingH1 ? '3.1. ' : '3. ');
+      }
+    );
+  });
+});
diff --git a/packages/toc/toc.gif b/packages/toc/toc.gif
deleted file mode 100644
index da8daf0efec9..000000000000
Binary files a/packages/toc/toc.gif and /dev/null differ
diff --git a/packages/toc/tsconfig.json b/packages/toc/tsconfig.json
index 4261447d99e3..d2a5e05732cc 100644
--- a/packages/toc/tsconfig.json
+++ b/packages/toc/tsconfig.json
@@ -9,33 +9,18 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../cells"
-    },
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docmanager"
-    },
     {
       "path": "../docregistry"
     },
     {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../markdownviewer"
-    },
-    {
-      "path": "../notebook"
+      "path": "../observables"
     },
     {
       "path": "../rendermime"
     },
-    {
-      "path": "../settingregistry"
-    },
     {
       "path": "../translation"
     },
diff --git a/packages/toc/tsconfig.test.json b/packages/toc/tsconfig.test.json
index 21da05da6895..c74d05d1b8e3 100644
--- a/packages/toc/tsconfig.test.json
+++ b/packages/toc/tsconfig.test.json
@@ -1,6 +1,6 @@
 {
   "extends": "../../tsconfigbase.test",
-  "include": ["src/*", "test/*"],
+  "include": ["src/**/*", "test/*"],
   "compilerOptions": {
     "lib": ["DOM", "DOM.Iterable"]
   },
@@ -8,33 +8,18 @@
     {
       "path": "../apputils"
     },
-    {
-      "path": "../cells"
-    },
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../docmanager"
-    },
     {
       "path": "../docregistry"
     },
     {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../markdownviewer"
-    },
-    {
-      "path": "../notebook"
+      "path": "../observables"
     },
     {
       "path": "../rendermime"
     },
-    {
-      "path": "../settingregistry"
-    },
     {
       "path": "../translation"
     },
@@ -45,43 +30,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../cells"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../docmanager"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../fileeditor"
-    },
-    {
-      "path": "../markdownviewer"
-    },
-    {
-      "path": "../notebook"
-    },
-    {
-      "path": "../rendermime"
-    },
-    {
-      "path": "../settingregistry"
-    },
-    {
-      "path": "../translation"
-    },
-    {
-      "path": "../ui-components"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/tooltip-extension/package.json b/packages/tooltip-extension/package.json
index 9d0a21547bc4..d4ae8780d7a8 100644
--- a/packages/tooltip-extension/package.json
+++ b/packages/tooltip-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/tooltip-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Tooltip Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -28,7 +28,8 @@
     "lib/*.js",
     "schema/*.json",
     "style/**/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -37,23 +38,24 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/console": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/fileeditor": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/tooltip": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/console": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/fileeditor": "^4.0.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/tooltip": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/tooltip-extension/src/index.ts b/packages/tooltip-extension/src/index.ts
index 367990483b5b..613aed9419b1 100644
--- a/packages/tooltip-extension/src/index.ts
+++ b/packages/tooltip-extension/src/index.ts
@@ -17,7 +17,8 @@ import { INotebookTracker } from '@jupyterlab/notebook';
 import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
 import { Kernel, KernelMessage, Session } from '@jupyterlab/services';
 import { ITooltipManager, Tooltip } from '@jupyterlab/tooltip';
-import { find, toArray } from '@lumino/algorithm';
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { find } from '@lumino/algorithm';
 import { JSONObject } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 
@@ -39,13 +40,20 @@ namespace CommandIDs {
  */
 const manager: JupyterFrontEndPlugin<ITooltipManager> = {
   id: '@jupyterlab/tooltip-extension:manager',
+  description: 'Provides the tooltip manager.',
   autoStart: true,
+  optional: [ITranslator],
   provides: ITooltipManager,
-  activate: (app: JupyterFrontEnd): ITooltipManager => {
+  activate: (
+    app: JupyterFrontEnd,
+    translator: ITranslator | null
+  ): ITooltipManager => {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
     let tooltip: Tooltip | null = null;
 
     // Add tooltip dismiss command.
     app.commands.addCommand(CommandIDs.dismiss, {
+      label: trans.__('Dismiss the tooltip'),
       execute: () => {
         if (tooltip) {
           tooltip.dispose();
@@ -81,16 +89,23 @@ const manager: JupyterFrontEndPlugin<ITooltipManager> = {
  * The console tooltip plugin.
  */
 const consoles: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/console-extension
   id: '@jupyterlab/tooltip-extension:consoles',
+  description: 'Adds the tooltip capability to consoles.',
   autoStart: true,
+  optional: [ITranslator],
   requires: [ITooltipManager, IConsoleTracker],
   activate: (
     app: JupyterFrontEnd,
     manager: ITooltipManager,
-    consoles: IConsoleTracker
+    consoles: IConsoleTracker,
+    translator: ITranslator | null
   ): void => {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+
     // Add tooltip launch command.
     app.commands.addCommand(CommandIDs.launchConsole, {
+      label: trans.__('Open the tooltip'),
       execute: () => {
         const parent = consoles.currentWidget;
 
@@ -116,16 +131,23 @@ const consoles: JupyterFrontEndPlugin<void> = {
  * The notebook tooltip plugin.
  */
 const notebooks: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/notebook-extension
   id: '@jupyterlab/tooltip-extension:notebooks',
+  description: 'Adds the tooltip capability to notebooks.',
   autoStart: true,
+  optional: [ITranslator],
   requires: [ITooltipManager, INotebookTracker],
   activate: (
     app: JupyterFrontEnd,
     manager: ITooltipManager,
-    notebooks: INotebookTracker
+    notebooks: INotebookTracker,
+    translator: ITranslator | null
   ): void => {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+
     // Add tooltip launch command.
     app.commands.addCommand(CommandIDs.launchNotebook, {
+      label: trans.__('Open the tooltip'),
       execute: () => {
         const parent = notebooks.currentWidget;
 
@@ -151,15 +173,21 @@ const notebooks: JupyterFrontEndPlugin<void> = {
  * The file editor tooltip plugin.
  */
 const files: JupyterFrontEndPlugin<void> = {
+  // FIXME This should be in @jupyterlab/fileeditor-extension
   id: '@jupyterlab/tooltip-extension:files',
+  description: 'Adds the tooltip capability to file editors.',
   autoStart: true,
+  optional: [ITranslator],
   requires: [ITooltipManager, IEditorTracker, IRenderMimeRegistry],
   activate: (
     app: JupyterFrontEnd,
     manager: ITooltipManager,
     editorTracker: IEditorTracker,
-    rendermime: IRenderMimeRegistry
+    rendermime: IRenderMimeRegistry,
+    translator: ITranslator | null
   ): void => {
+    const trans = (translator ?? nullTranslator).load('jupyterlab');
+
     // Keep a list of active ISessions so that we can
     // clean them up when they are no longer needed.
     const activeSessions: {
@@ -172,7 +200,7 @@ const files: JupyterFrontEndPlugin<void> = {
     // matching path for the file editors.
     const onRunningChanged = (
       sender: Session.IManager,
-      models: Session.IModel[]
+      models: Iterable<Session.IModel>
     ) => {
       editorTracker.forEach(file => {
         const model = find(models, m => file.context.path === m.path);
@@ -200,7 +228,7 @@ const files: JupyterFrontEndPlugin<void> = {
         }
       });
     };
-    onRunningChanged(sessions, toArray(sessions.running()));
+    onRunningChanged(sessions, sessions.running());
     sessions.runningChanged.connect(onRunningChanged);
 
     // Clean up after a widget when it is disposed
@@ -216,6 +244,7 @@ const files: JupyterFrontEndPlugin<void> = {
 
     // Add tooltip launch command.
     app.commands.addCommand(CommandIDs.launchFile, {
+      label: trans.__('Open the tooltip'),
       execute: async () => {
         const parent = editorTracker.currentWidget;
         const kernel =
@@ -283,7 +312,7 @@ namespace Private {
    */
   export function fetch(options: IFetchOptions): Promise<JSONObject> {
     const { detail, editor, kernel } = options;
-    const code = editor.model.value.text;
+    const code = editor.model.sharedModel.getSource();
     const position = editor.getCursorPosition();
     const offset = Text.jsIndexToCharIndex(editor.getOffsetAt(position), code);
 
diff --git a/packages/tooltip-extension/tsconfig.json b/packages/tooltip-extension/tsconfig.json
index c5b3c08fa754..5964fb6c53f2 100644
--- a/packages/tooltip-extension/tsconfig.json
+++ b/packages/tooltip-extension/tsconfig.json
@@ -32,6 +32,9 @@
     },
     {
       "path": "../tooltip"
+    },
+    {
+      "path": "../translation"
     }
   ]
 }
diff --git a/packages/tooltip/package.json b/packages/tooltip/package.json
index 15337f5b7f9d..19ff148df647 100644
--- a/packages/tooltip/package.json
+++ b/packages/tooltip/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/tooltip",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Tooltip Widget",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -27,7 +27,8 @@
     "lib/*.js.map",
     "lib/*.js",
     "style/*.css",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -36,18 +37,18 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2"
+    "@jupyterlab/codeeditor": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/tooltip/src/tokens.ts b/packages/tooltip/src/tokens.ts
index da0f5d8affe1..6b43aef56449 100644
--- a/packages/tooltip/src/tokens.ts
+++ b/packages/tooltip/src/tokens.ts
@@ -7,14 +7,13 @@ import { Kernel } from '@jupyterlab/services';
 import { Token } from '@lumino/coreutils';
 import { Widget } from '@lumino/widgets';
 
-/* tslint:disable */
 /**
  * The tooltip manager token.
  */
 export const ITooltipManager = new Token<ITooltipManager>(
-  '@jupyterlab/tooltip:ITooltipManager'
+  '@jupyterlab/tooltip:ITooltipManager',
+  'A service for the tooltip manager for the application. Use this to allow your extension to invoke a tooltip.'
 );
-/* tslint:enable */
 
 /**
  * A manager to register tooltips with parent widgets.
@@ -27,7 +26,7 @@ export interface ITooltipManager {
 }
 
 /**
- * A namespace for `ICompletionManager` interface specifications.
+ * A namespace for `ITooltipManager` interface specifications.
  */
 export namespace ITooltipManager {
   /**
diff --git a/packages/tooltip/src/widget.ts b/packages/tooltip/src/widget.ts
index afe4318d9875..1dcdaf7e5f0e 100644
--- a/packages/tooltip/src/widget.ts
+++ b/packages/tooltip/src/widget.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { HoverBox } from '@jupyterlab/apputils';
+import { HoverBox } from '@jupyterlab/ui-components';
 import { CodeEditor } from '@jupyterlab/codeeditor';
 import {
   IRenderMime,
@@ -219,7 +219,7 @@ export class Tooltip extends Widget {
 
     const editor = this._editor;
 
-    const anchor = editor.getCoordinateForPosition(position) as ClientRect;
+    const anchor = editor.getCoordinateForPosition(position);
     const style = window.getComputedStyle(this.node);
     const paddingLeft = parseInt(style.paddingLeft!, 10) || 0;
 
diff --git a/packages/tooltip/style/index.css b/packages/tooltip/style/index.css
index eb7f17bbda79..2746b5712717 100644
--- a/packages/tooltip/style/index.css
+++ b/packages/tooltip/style/index.css
@@ -5,8 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
-@import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/codeeditor/style/index.css');
 @import url('~@jupyterlab/rendermime/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/tooltip/style/index.js b/packages/tooltip/style/index.js
index 59d2c52c6228..cb61b711ac26 100644
--- a/packages/tooltip/style/index.js
+++ b/packages/tooltip/style/index.js
@@ -5,7 +5,7 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 import '@lumino/widgets/style/index.js';
-import '@jupyterlab/apputils/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/codeeditor/style/index.js';
 import '@jupyterlab/rendermime/style/index.js';
 
diff --git a/packages/tooltip/tsconfig.json b/packages/tooltip/tsconfig.json
index e0912df727b3..7ac0946e9513 100644
--- a/packages/tooltip/tsconfig.json
+++ b/packages/tooltip/tsconfig.json
@@ -6,9 +6,6 @@
   },
   "include": ["src/*"],
   "references": [
-    {
-      "path": "../apputils"
-    },
     {
       "path": "../codeeditor"
     },
@@ -17,6 +14,9 @@
     },
     {
       "path": "../services"
+    },
+    {
+      "path": "../ui-components"
     }
   ]
 }
diff --git a/packages/translation-extension/package.json b/packages/translation-extension/package.json
index bbfaece32b6b..899ecb74289c 100644
--- a/packages/translation-extension/package.json
+++ b/packages/translation-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/translation-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Translation services",
   "keywords": [
     "jupyter",
@@ -28,7 +28,8 @@
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "schema/**/*.{json,}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc",
@@ -38,15 +39,15 @@
     "watch": "tsc -w"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/mainmenu": "^3.6.6",
-    "@jupyterlab/settingregistry": "^3.6.6",
-    "@jupyterlab/translation": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/mainmenu": "^4.0.8",
+    "@jupyterlab/settingregistry": "^4.0.8",
+    "@jupyterlab/translation": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/translation-extension/src/index.ts b/packages/translation-extension/src/index.ts
index b0b9120ca1ed..f47bbfab5cfd 100644
--- a/packages/translation-extension/src/index.ts
+++ b/packages/translation-extension/src/index.ts
@@ -8,10 +8,11 @@
  */
 
 import {
+  ILabShell,
   JupyterFrontEnd,
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
-import { Dialog, showDialog } from '@jupyterlab/apputils';
+import { Dialog, ICommandPalette, showDialog } from '@jupyterlab/apputils';
 import { IMainMenu } from '@jupyterlab/mainmenu';
 import { ISettingRegistry } from '@jupyterlab/settingregistry';
 import {
@@ -20,14 +21,6 @@ import {
   TranslationManager
 } from '@jupyterlab/translation';
 
-/**
- * A namespace for command IDs.
- */
-export namespace CommandIDs {
-  export const installAdditionalLanguages =
-    'jupyterlab-translation:install-additional-languages';
-}
-
 /**
  * Translation plugins
  */
@@ -35,13 +28,16 @@ const PLUGIN_ID = '@jupyterlab/translation-extension:plugin';
 
 const translator: JupyterFrontEndPlugin<ITranslator> = {
   id: '@jupyterlab/translation:translator',
+  description: 'Provides the application translation object.',
   autoStart: true,
   requires: [JupyterFrontEnd.IPaths, ISettingRegistry],
+  optional: [ILabShell],
   provides: ITranslator,
   activate: async (
     app: JupyterFrontEnd,
     paths: JupyterFrontEnd.IPaths,
-    settings: ISettingRegistry
+    settings: ISettingRegistry,
+    labShell: ILabShell | null
   ) => {
     const setting = await settings.load(PLUGIN_ID);
     const currentLocale: string = setting.get('locale').composite as string;
@@ -57,6 +53,14 @@ const translator: JupyterFrontEndPlugin<ITranslator> = {
       serverSettings
     );
     await translationManager.fetch(currentLocale);
+
+    // Set translator to UI
+    if (labShell) {
+      labShell.translator = translationManager;
+    }
+
+    Dialog.translator = translationManager;
+
     return translationManager;
   }
 };
@@ -66,13 +70,16 @@ const translator: JupyterFrontEndPlugin<ITranslator> = {
  */
 const langMenu: JupyterFrontEndPlugin<void> = {
   id: PLUGIN_ID,
-  requires: [IMainMenu, ISettingRegistry, ITranslator],
+  description: 'Adds translation commands and settings.',
+  requires: [ISettingRegistry, ITranslator],
+  optional: [IMainMenu, ICommandPalette],
   autoStart: true,
   activate: (
     app: JupyterFrontEnd,
-    mainMenu: IMainMenu,
     settings: ISettingRegistry,
-    translator: ITranslator
+    translator: ITranslator,
+    mainMenu: IMainMenu | null,
+    palette: ICommandPalette | null
   ) => {
     const trans = translator.load('jupyterlab');
     const { commands } = app;
@@ -92,17 +99,28 @@ const langMenu: JupyterFrontEndPlugin<void> = {
       .then(setting => {
         // Read the settings
         loadSetting(setting);
-        document.documentElement.lang = currentLocale;
+
+        // Ensure currentLocale is not 'default' which is not a valid language code
+        if (currentLocale !== 'default') {
+          document.documentElement.lang = (currentLocale ?? '').replace(
+            '_',
+            '-'
+          );
+        } else {
+          document.documentElement.lang = 'en-US';
+        }
 
         // Listen for your plugin setting changes using Signal
         setting.changed.connect(loadSetting);
 
         // Create a languages menu
-        const languagesMenu = mainMenu.settingsMenu.items.find(
-          item =>
-            item.type === 'submenu' &&
-            item.submenu?.id === 'jp-mainmenu-settings-language'
-        )?.submenu;
+        const languagesMenu = mainMenu
+          ? mainMenu.settingsMenu.items.find(
+              item =>
+                item.type === 'submenu' &&
+                item.submenu?.id === 'jp-mainmenu-settings-language'
+            )?.submenu
+          : null;
 
         let command: string;
 
@@ -160,6 +178,13 @@ const langMenu: JupyterFrontEndPlugin<void> = {
                   args: {}
                 });
               }
+
+              if (palette) {
+                palette.addItem({
+                  category: trans.__('Display Languages'),
+                  command
+                });
+              }
             }
           })
           .catch(reason => {
diff --git a/packages/translation/babel.config.js b/packages/translation/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/translation/babel.config.js
+++ b/packages/translation/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/translation/jest.config.js b/packages/translation/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/translation/jest.config.js
+++ b/packages/translation/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/translation/package.json b/packages/translation/package.json
index c09cc79de2ea..3f4beabdf831 100644
--- a/packages/translation/package.json
+++ b/packages/translation/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/translation",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Translation services",
   "keywords": [
     "jupyter",
@@ -23,7 +23,8 @@
     "lib": "lib/"
   },
   "files": [
-    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}"
+    "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc",
@@ -34,22 +35,23 @@
     "eslint:check": "eslint . --ext .ts,.tsx",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -w"
   },
   "dependencies": {
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@jupyterlab/statedb": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0"
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/services": "^7.0.8",
+    "@jupyterlab/statedb": "^4.0.8",
+    "@lumino/coreutils": "^2.1.2"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "typescript": "~4.1.3"
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/translation/src/base.ts b/packages/translation/src/base.ts
index d0e22287ec55..2645d928f576 100644
--- a/packages/translation/src/base.ts
+++ b/packages/translation/src/base.ts
@@ -13,14 +13,12 @@ class NullTranslator implements ITranslator {
     this._languageBundle = bundle;
   }
 
+  readonly languageCode: string = 'en';
+
   load(domain: string): TranslationBundle {
     return this._languageBundle;
   }
 
-  locale(): string {
-    return 'en';
-  }
-
   private _languageBundle: TranslationBundle;
 }
 
diff --git a/packages/translation/src/gettext.ts b/packages/translation/src/gettext.ts
index 2afda6b4ca88..cbdb0b7f0570 100644
--- a/packages/translation/src/gettext.ts
+++ b/packages/translation/src/gettext.ts
@@ -181,7 +181,7 @@ class Gettext {
   /**
    * Get current context delimiter.
    *
-   * @return The current delimiter.
+   * @returns The current delimiter.
    */
   getContextDelimiter(): string {
     return this._contextDelimiter;
@@ -199,7 +199,7 @@ class Gettext {
   /**
    * Get current locale.
    *
-   * @return The current locale.
+   * @returns The current locale.
    */
   getLocale(): string {
     return this._locale;
@@ -217,7 +217,7 @@ class Gettext {
   /**
    * Get current domain.
    *
-   * @return The current domain string.
+   * @returns The current domain string.
    */
   getDomain(): string {
     return this._domain;
@@ -235,7 +235,7 @@ class Gettext {
   /**
    * Get current strings prefix.
    *
-   * @return The strings prefix.
+   * @returns The strings prefix.
    */
   getStringsPrefix(): string {
     return this._stringsPrefix;
@@ -303,7 +303,7 @@ class Gettext {
    * @param msgid - The singular string to translate.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    *
    * ### Notes
    * This is not a private method (starts with an underscore) it is just
@@ -321,7 +321,7 @@ class Gettext {
    * @param n - The number for pluralization.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    *
    * ### Notes
    * This is not a private method (starts with an underscore) it is just
@@ -338,7 +338,7 @@ class Gettext {
    * @param msgid - The singular string to translate.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    *
    * ### Notes
    * This is not a private method (starts with an underscore) it is just
@@ -357,7 +357,7 @@ class Gettext {
    * @param n - The number for pluralization.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    *
    * ### Notes
    * This is not a private method (starts with an underscore) it is just
@@ -379,7 +379,7 @@ class Gettext {
    * @param msgid - The singular string to translate.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    */
   gettext(msgid: string, ...args: any[]): string {
     return this.dcnpgettext('', '', msgid, '', 0, ...args);
@@ -391,7 +391,7 @@ class Gettext {
    * @param msgid - The singular string to translate.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    */
   ngettext(
     msgid: string,
@@ -409,7 +409,7 @@ class Gettext {
    * @param msgid - The singular string to translate.
    * @param args - Any additional values to use with interpolation.
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    *
    * ### Notes
    * This is not a private method (starts with an underscore) it is just
@@ -428,7 +428,7 @@ class Gettext {
    * @param n - The number for pluralization.
    * @param args - Any additional values to use with interpolation
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    */
   npgettext(
     msgctxt: string,
@@ -450,7 +450,7 @@ class Gettext {
    * @param n - The number for pluralization.
    * @param args - Any additional values to use with interpolation
    *
-   * @return A translated string if found, or the original string.
+   * @returns A translated string if found, or the original string.
    */
   dcnpgettext(
     domain: string,
@@ -518,7 +518,7 @@ class Gettext {
    *
    * @param locale - The locale string.
    *
-   * @return An array of locales.
+   * @returns An array of locales.
    */
   private expandLocale(locale: string): Array<string> {
     let locales: Array<string> = [locale];
@@ -535,8 +535,9 @@ class Gettext {
    * Split a locale into parent locales. "es-CO" -> ["es-CO", "es"]
    *
    * @param pluralForm - Plural form string..
-   * @return An function to compute plural forms.
+   * @returns An function to compute plural forms.
    */
+  // eslint-disable-next-line @typescript-eslint/ban-types
   private getPluralFunc(pluralForm: string): Function {
     // Plural form string regexp
     // taken from https://github.com/Orange-OpenSource/gettext.js/blob/master/lib.gettext.js
@@ -566,7 +567,7 @@ class Gettext {
    * Remove the context delimiter from string.
    *
    * @param str - Translation string.
-   * @return A translation string without context.
+   * @returns A translation string without context.
    */
   private removeContext(str: string): string {
     // if there is context, remove it
@@ -585,7 +586,7 @@ class Gettext {
    * @param options - Translation options.
    * @param args - Any variables to interpolate.
    *
-   * @return A translation string without context.
+   * @returns A translation string without context.
    *
    * ### Notes
    * Contains juicy parts of https://github.com/Orange-OpenSource/gettext.js/blob/master/lib.gettext.js
diff --git a/packages/translation/src/manager.ts b/packages/translation/src/manager.ts
index d719944d447e..0d17de744c54 100644
--- a/packages/translation/src/manager.ts
+++ b/packages/translation/src/manager.ts
@@ -20,6 +20,10 @@ export class TranslationManager implements ITranslator {
     this._englishBundle = new Gettext({ stringsPrefix: this._stringsPrefix });
   }
 
+  get languageCode(): string {
+    return this._currentLocale;
+  }
+
   /**
    * Fetch the localization data from the server.
    *
diff --git a/packages/translation/src/server.ts b/packages/translation/src/server.ts
index 0f2f1336a7f6..d50cd20f46f7 100644
--- a/packages/translation/src/server.ts
+++ b/packages/translation/src/server.ts
@@ -26,7 +26,7 @@ export async function requestTranslationsAPI<T>(
   // Make request to Jupyter API
   const settings = serverSettings ?? ServerConnection.makeSettings();
   translationsUrl =
-    translationsUrl || `${settings.appUrl}/${TRANSLATIONS_SETTINGS_URL}/`;
+    translationsUrl || `${settings.appUrl}/${TRANSLATIONS_SETTINGS_URL}`;
   const requestUrl = URLExt.join(settings.baseUrl, translationsUrl, locale);
   let response: Response;
   try {
diff --git a/packages/translation/src/tokens.ts b/packages/translation/src/tokens.ts
index 1ed7518bbc96..6695d6b88739 100644
--- a/packages/translation/src/tokens.ts
+++ b/packages/translation/src/tokens.ts
@@ -3,6 +3,7 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
+import type { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { ServerConnection } from '@jupyterlab/services';
 import { DataConnector, IDataConnector } from '@jupyterlab/statedb';
 import { Token } from '@lumino/coreutils';
@@ -11,18 +12,26 @@ import { requestTranslationsAPI } from './server';
 /*
  * Translation
  */
-type Language = { [key: string]: string };
+export type Language = { [key: string]: string };
 
+/**
+ * Translation connection interface.
+ */
 export interface ITranslatorConnector
   extends IDataConnector<Language, Language, { language: string }> {}
 
+/**
+ * A service to connect to the server translation endpoint
+ */
 export const ITranslatorConnector = new Token<ITranslatorConnector>(
-  '@jupyterlab/translation:ITranslatorConnector'
+  '@jupyterlab/translation:ITranslatorConnector',
+  'A service to connect to the server translation endpoint.'
 );
 
 export class TranslatorConnector
   extends DataConnector<Language, Language, { language: string }>
-  implements ITranslatorConnector {
+  implements ITranslatorConnector
+{
   constructor(
     translationsUrl: string = '',
     serverSettings?: ServerConnection.ISettings
@@ -46,84 +55,19 @@ export class TranslatorConnector
 }
 
 /**
- * Bundle of gettext-based translation functions.
- *
- * The calls to the functions in this bundle will be automatically
- * extracted by `jupyterlab-translate` package to generate translation
- * template files if the bundle is assigned to:
- * - variable named `trans`,
- * - public attribute named `trans` (`this.trans`),
- * - private attribute named `trans` (`this._trans`),
- * - `trans` attribute `props` variable (`props.trans`),
- * - `trans` attribute `props` attribute (`this.props.trans`)
+ * Bundle of gettext-based translation functions for a specific domain.
  */
-export type TranslationBundle = {
-  /**
-   * Alias for `gettext` (translate strings without number inflection)
-   * @param msgid message (text to translate)
-   * @param args
-   */
-  __(msgid: string, ...args: any[]): string;
-  /**
-   * Alias for `ngettext` (translate accounting for plural forms)
-   * @param msgid message for singular
-   * @param msgid_plural message for plural
-   * @param n determines which plural form to use
-   * @param args
-   */
-  _n(msgid: string, msgid_plural: string, n: number, ...args: any[]): string;
-  /**
-   * Alias for `pgettext` (translate in given context)
-   * @param msgctxt context
-   * @param msgid message (text to translate)
-   * @param args
-   */
-  _p(msgctxt: string, msgid: string, ...args: any[]): string;
-  /**
-   * Alias for `npgettext` (translate accounting for plural forms in given context)
-   * @param msgctxt context
-   * @param msgid message for singular
-   * @param msgid_plural message for plural
-   * @param n number used to determine which plural form to use
-   * @param args
-   */
-  _np(
-    msgctxt: string,
-    msgid: string,
-    msgid_plural: string,
-    n: number,
-    ...args: any[]
-  ): string;
-  gettext(msgid: string, ...args: any[]): string;
-  ngettext(
-    msgid: string,
-    msgid_plural: string,
-    n: number,
-    ...args: any[]
-  ): string;
-  pgettext(msgctxt: string, msgid: string, ...args: any[]): string;
-  npgettext(
-    msgctxt: string,
-    msgid: string,
-    msgid_plural: string,
-    n: number,
-    ...args: any[]
-  ): string;
-  dcnpgettext(
-    domain: string,
-    msgctxt: string,
-    msgid: string,
-    msgid_plural: string,
-    n: number,
-    ...args: any[]
-  ): string;
-};
+export type TranslationBundle = IRenderMime.TranslationBundle;
 
-export interface ITranslator {
-  load(domain: string): TranslationBundle;
-  // locale(): string;
-}
+/**
+ * Translation provider interface
+ */
+export interface ITranslator extends IRenderMime.ITranslator {}
 
+/**
+ * Translation provider token
+ */
 export const ITranslator = new Token<ITranslator>(
-  '@jupyterlab/translation:ITranslator'
+  '@jupyterlab/translation:ITranslator',
+  'A service to translate strings.'
 );
diff --git a/packages/translation/src/utils.ts b/packages/translation/src/utils.ts
index 2abbf128a65b..a5f69f785a30 100644
--- a/packages/translation/src/utils.ts
+++ b/packages/translation/src/utils.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 /**
  * Normalize domain
  *
diff --git a/packages/translation/tsconfig.json b/packages/translation/tsconfig.json
index 9a253ba46b2a..ce3030d31bef 100644
--- a/packages/translation/tsconfig.json
+++ b/packages/translation/tsconfig.json
@@ -9,6 +9,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../services"
     },
diff --git a/packages/translation/tsconfig.test.json b/packages/translation/tsconfig.test.json
index 4f0b87507cf7..dbab2a159c08 100644
--- a/packages/translation/tsconfig.test.json
+++ b/packages/translation/tsconfig.test.json
@@ -5,6 +5,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../services"
     },
@@ -15,16 +18,7 @@
       "path": "."
     },
     {
-      "path": "../../testutils"
-    },
-    {
-      "path": "../coreutils"
-    },
-    {
-      "path": "../services"
-    },
-    {
-      "path": "../statedb"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/ui-components-extension/package.json b/packages/ui-components-extension/package.json
index ab66306d44eb..fb81c09b30bf 100644
--- a/packages/ui-components-extension/package.json
+++ b/packages/ui-components-extension/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/ui-components-extension",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - UI component plugins",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -23,7 +23,8 @@
   },
   "files": [
     "lib/*.{d.ts,js,js.map}",
-    "style/*"
+    "style/*",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,13 +33,13 @@
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8"
   },
   "devDependencies": {
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/ui-components-extension/src/index.ts b/packages/ui-components-extension/src/index.ts
index b4df7f3f86f8..dfe50735f50c 100644
--- a/packages/ui-components-extension/src/index.ts
+++ b/packages/ui-components-extension/src/index.ts
@@ -10,8 +10,8 @@ import {
   JupyterFrontEndPlugin
 } from '@jupyterlab/application';
 import {
-  FormComponentRegistry,
-  IFormComponentRegistry,
+  FormRendererRegistry,
+  IFormRendererRegistry,
   ILabIconManager
 } from '@jupyterlab/ui-components';
 
@@ -21,6 +21,7 @@ import {
  */
 const labiconManager: JupyterFrontEndPlugin<ILabIconManager> = {
   id: '@jupyterlab/ui-components-extension:labicon-manager',
+  description: 'Provides the icon manager.',
   provides: ILabIconManager,
   autoStart: true,
   activate: (app: JupyterFrontEnd) => {
@@ -29,16 +30,18 @@ const labiconManager: JupyterFrontEndPlugin<ILabIconManager> = {
 };
 
 /**
- * Sets up the component registry to be used by the FormEditor component.
+ * Sets up the renderer registry to be used by the FormEditor component.
  */
-const registryPlugin: JupyterFrontEndPlugin<IFormComponentRegistry> = {
-  id: '@jupyterlab/settingeditor-extension:form-registry',
-  provides: IFormComponentRegistry,
-  autoStart: true,
-  activate: (app: JupyterFrontEnd): IFormComponentRegistry => {
-    const editorRegistry = new FormComponentRegistry();
-    return editorRegistry;
-  }
-};
+const formRendererRegistryPlugin: JupyterFrontEndPlugin<IFormRendererRegistry> =
+  {
+    id: '@jupyterlab/ui-components-extension:form-renderer-registry',
+    description: 'Provides the settings form renderer registry.',
+    provides: IFormRendererRegistry,
+    autoStart: true,
+    activate: (app: JupyterFrontEnd): IFormRendererRegistry => {
+      const formRendererRegistry = new FormRendererRegistry();
+      return formRendererRegistry;
+    }
+  };
 
-export default [labiconManager, registryPlugin];
+export default [labiconManager, formRendererRegistryPlugin];
diff --git a/packages/ui-components/.storybook/main.js b/packages/ui-components/.storybook/main.js
deleted file mode 100644
index 7462333a9ca3..000000000000
--- a/packages/ui-components/.storybook/main.js
+++ /dev/null
@@ -1,3 +0,0 @@
-module.exports = {
-  stories: ['../stories/*.stories.tsx']
-};
diff --git a/packages/ui-components/.storybook/tsconfig.json b/packages/ui-components/.storybook/tsconfig.json
deleted file mode 100644
index da0d0275bdd2..000000000000
--- a/packages/ui-components/.storybook/tsconfig.json
+++ /dev/null
@@ -1,14 +0,0 @@
-{
-  "extends": "../../../tsconfigbase.json",
-  "compilerOptions": {
-    "lib": ["es6", "dom", "ES2018"],
-    "allowJs": false,
-    "rootDir": "../",
-    "outDir": "dist",
-    "noImplicitReturns": true,
-    "noImplicitThis": true,
-    "skipLibCheck": true
-  },
-  "include": ["../src/**/*"],
-  "exclude": ["node_modules"]
-}
diff --git a/packages/ui-components/.storybook/webpack.config.js b/packages/ui-components/.storybook/webpack.config.js
deleted file mode 100644
index 77c800df88a9..000000000000
--- a/packages/ui-components/.storybook/webpack.config.js
+++ /dev/null
@@ -1,59 +0,0 @@
-const path = require('path');
-const SRC_PATH = path.join(__dirname, '../src');
-const STORIES_PATH = path.join(__dirname, '../stories');
-const crypto = require('crypto');
-
-// Workaround for loaders using "md4" by default, which is not supported in FIPS-compliant OpenSSL
-const cryptoOrigCreateHash = crypto.createHash;
-crypto.createHash = algorithm =>
-  cryptoOrigCreateHash(algorithm == 'md4' ? 'sha256' : algorithm);
-
-module.exports = ({ config }) => {
-  // don't use storybook's default svg configuration
-  // https://github.com/storybookjs/storybook/issues/6758
-  config.module.rules = config.module.rules.map(rule => {
-    if (rule.test.toString().includes('svg')) {
-      const test = rule.test.toString().replace('svg|', '').replace(/\//g, '');
-      return { ...rule, test: new RegExp(test) };
-    } else {
-      return rule;
-    }
-  });
-
-  // ts rules
-  config.module.rules.push({
-    test: /\.(ts|tsx)$/,
-    // dont need stories path if you have your stories inside your src folder
-    include: [SRC_PATH, STORIES_PATH],
-    use: [
-      {
-        loader: require.resolve('ts-loader'),
-        options: {
-          configFile: './.storybook/tsconfig.json'
-        }
-      }
-    ]
-  });
-  config.resolve.extensions.push('.ts', '.tsx');
-
-  // svg rules
-  config.module.rules.push({
-    // in css files, svg is loaded as a url formatted string
-    test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
-    issuer: /\.css$/,
-    use: {
-      loader: 'svg-url-loader',
-      options: { encoding: 'none', limit: 10000 }
-    }
-  });
-  config.module.rules.push({
-    // in js, jsx, ts, and tsx files svg is loaded as a raw string
-    test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
-    issuer: { test: /\.(js|jsx|ts|tsx)$/ },
-    use: {
-      loader: 'raw-loader'
-    }
-  });
-
-  return config;
-};
diff --git a/packages/ui-components/.vscode/launch.json b/packages/ui-components/.vscode/launch.json
index 3c841b4f2ce8..66fb4b825a88 100644
--- a/packages/ui-components/.vscode/launch.json
+++ b/packages/ui-components/.vscode/launch.json
@@ -12,4 +12,4 @@
             "port": 9229
         }
     ]
-}
\ No newline at end of file
+}
diff --git a/packages/ui-components/README.md b/packages/ui-components/README.md
index daef31e6d8d6..2baab96cb1b9 100644
--- a/packages/ui-components/README.md
+++ b/packages/ui-components/README.md
@@ -85,20 +85,20 @@ Alternatively, you can just render the icon directly into any existing
 DOM node `elem` by using the `ReactDOM` module:
 
 ```typescript
-ReactDOM.render(jupyterIcon.react, elem);
+const root = createRoot(elem);
+root.render(jupyterIcon.react);
 ```
 
 If do you use `ReactDOM` to render, and if the `elem` node is ever
 removed from the DOM, you’ll first need to clean it up:
 
 ```typescript
-ReactDOM.unmountComponentAtNode(elem);
+root.unmount();
 ```
 
 This cleanup step is not a special property of `LabIcon`, but is instead
 needed for any React component that is rendered directly at the top
-level by `ReactDOM`: failure to call `unmountComponentAtNode` can result
-in a [memory leak](https://stackoverflow.com/a/48198011/425458).
+level by `ReactDOM`.
 
 ## How to create your own custom `LabIcon`
 
diff --git a/packages/ui-components/babel.config.js b/packages/ui-components/babel.config.js
index 8b5c76420c60..eb2198a956e7 100644
--- a/packages/ui-components/babel.config.js
+++ b/packages/ui-components/babel.config.js
@@ -1 +1,6 @@
-module.exports = require('@jupyterlab/testutils/lib/babel.config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+module.exports = require('@jupyterlab/testing/lib/babel-config');
diff --git a/packages/ui-components/docs/build.sh b/packages/ui-components/docs/build.sh
index 43f8b4c76afa..2bba56b52313 100755
--- a/packages/ui-components/docs/build.sh
+++ b/packages/ui-components/docs/build.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 
 # get this script's parent dir
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
diff --git a/packages/ui-components/docs/source/README.rst b/packages/ui-components/docs/source/README.rst
index 3a94999b9b6d..05f6cb3b001a 100644
--- a/packages/ui-components/docs/source/README.rst
+++ b/packages/ui-components/docs/source/README.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 @jupyterlab/ui-components
 =========================
 
diff --git a/packages/ui-components/docs/source/generated_warning.rst b/packages/ui-components/docs/source/generated_warning.rst
index 638492a8c776..aed5d8c63e50 100644
--- a/packages/ui-components/docs/source/generated_warning.rst
+++ b/packages/ui-components/docs/source/generated_warning.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. raw:: html
 
    <!--
diff --git a/packages/ui-components/docs/source/intro.rst b/packages/ui-components/docs/source/intro.rst
index 06c708520c15..5ec5aee30e10 100644
--- a/packages/ui-components/docs/source/intro.rst
+++ b/packages/ui-components/docs/source/intro.rst
@@ -1,4 +1,7 @@
-The `@jupyterlab/ui-components <https://jupyterlab.readthedocs.io/en/3.6.x/api/modules/ui_components.html>`__
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
+The `@jupyterlab/ui-components <https://jupyterlab.readthedocs.io/en/stable/api/modules/ui_components.html>`__
 package provides UI elements that are widely used in JupyterLab core,
 and that can be reused in your own extensions.
 
diff --git a/packages/ui-components/docs/source/labicon.rst b/packages/ui-components/docs/source/labicon.rst
index 7fa7fd6cce7a..ea84f7412825 100644
--- a/packages/ui-components/docs/source/labicon.rst
+++ b/packages/ui-components/docs/source/labicon.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 ``LabIcon`` - set up and render icons
 =====================================
 
@@ -72,20 +75,19 @@ DOM node ``elem`` by using the ``ReactDOM`` module:
 
 .. code:: typescript
 
-   ReactDOM.render(jupyterIcon.react, elem);
+   const root = createRoot(elem);
+   root.render(jupyterIcon.react);
 
 If do you use ``ReactDOM`` to render, and if the ``elem`` node is ever
 removed from the DOM, you’ll first need to clean it up:
 
 .. code:: typescript
 
-   ReactDOM.unmountComponentAtNode(elem);
+   root.unmount();
 
 This cleanup step is not a special property of ``LabIcon``, but is
 instead needed for any React component that is rendered directly at the
-top level by ``ReactDOM``: failure to call ``unmountComponentAtNode``
-can result in a `memory
-leak <https://stackoverflow.com/a/48198011/425458>`__.
+top level by ``ReactDOM``.
 
 How to create your own custom ``LabIcon``
 -----------------------------------------
@@ -148,7 +150,7 @@ Available icon classes
 
 .. raw:: html
 
-   <em>Icon-related CSS classes are defined in <a href="https://github.com/jupyterlab/jupyterlab/blob/master/packages/ui-components/style/icons.css">ui-components/style/icons.css</a></em>
+   <em>Icon-related CSS classes are defined in <a href="https://github.com/jupyterlab/jupyterlab/blob/4.0.x/packages/ui-components/style/icons.css">ui-components/style/icons.css</a></em>
 
 |
 | All colors shown are for the standard light/dark theme, mouse over for hex values.
diff --git a/packages/ui-components/docs/source/ui_components.rst b/packages/ui-components/docs/source/ui_components.rst
index 2bc816c08cef..773c7f4694eb 100644
--- a/packages/ui-components/docs/source/ui_components.rst
+++ b/packages/ui-components/docs/source/ui_components.rst
@@ -1,3 +1,6 @@
+.. Copyright (c) Jupyter Development Team.
+.. Distributed under the terms of the Modified BSD License.
+
 .. _ui_components:
 
 #####################
diff --git a/packages/ui-components/examples/simple-windowed-list/index.css b/packages/ui-components/examples/simple-windowed-list/index.css
new file mode 100644
index 000000000000..94bc2685ec79
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/index.css
@@ -0,0 +1,66 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+body {
+  background: white;
+  margin: 0;
+  padding: 0;
+}
+
+#main {
+  position: absolute;
+  top: 140px;
+  left: 4px;
+  right: 4px;
+  bottom: 4px;
+  border-bottom: 1px solid #e0e0e0;
+}
+
+.jp-WindowedPanel-outer {
+  border: solid 1px transparent;
+  height: 500px;
+  width: 250px;
+}
+
+.jp-WindowedPanel-outer:active,
+.jp-WindowedPanel-outer:focus {
+  border: solid 1px lightskyblue;
+}
+
+.content {
+  min-width: 50px;
+  min-height: 70px;
+  display: flex;
+  flex-direction: column;
+  padding: 8px;
+  border: 1px solid #c0c0c0;
+  border-top: none;
+  background: white;
+  box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
+}
+
+.content:active,
+.content:focus {
+  box-shadow: 1px 1px 2px lightseagreen;
+}
+
+.content > div {
+  flex: 1 1 auto;
+  display: flex;
+  flex-direction: column;
+  border: 1px solid #505050;
+  overflow: auto;
+}
+
+.content > div > textarea {
+  border: solid 1px transparent;
+  margin: 2px;
+  padding: 0;
+}
+
+.content > div > textarea:active,
+.content > div > textarea:focus {
+  border: solid 1px lightsalmon;
+}
diff --git a/packages/ui-components/examples/simple-windowed-list/main.py b/packages/ui-components/examples/simple-windowed-list/main.py
new file mode 100644
index 000000000000..e559aad2b468
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/main.py
@@ -0,0 +1,78 @@
+"""
+An example demonstrating a stand-alone windowed list.
+
+Copyright (c) Jupyter Development Team.
+Distributed under the terms of the Modified BSD License.
+
+Example
+-------
+
+To run the example, see the instructions in the README to build it. Then
+run ``python main.py``.
+
+"""
+import json
+import os
+
+from jupyter_server.base.handlers import JupyterHandler
+from jupyter_server.extension.handler import ExtensionHandlerJinjaMixin, ExtensionHandlerMixin
+from jupyter_server.utils import url_path_join as ujoin
+from jupyterlab_server import LabServerApp
+
+HERE = os.path.dirname(__file__)
+
+with open(os.path.join(HERE, "package.json")) as fid:
+    version = json.load(fid)["version"]
+
+
+def _jupyter_server_extension_points():
+    return [{"module": __name__, "app": ExampleApp}]
+
+
+class ExampleHandler(ExtensionHandlerJinjaMixin, ExtensionHandlerMixin, JupyterHandler):
+    """Handle requests between the main app page and notebook server."""
+
+    def get(self):
+        """Get the main page for the application's interface."""
+        config_data = {
+            # Use camelCase here, since that's what the lab components expect
+            "appVersion": version,
+            "baseUrl": self.base_url,
+            "token": self.settings["token"],
+            "fullStaticUrl": ujoin(self.base_url, "static", self.name),
+            "frontendUrl": ujoin(self.base_url, "example/"),
+        }
+        return self.write(
+            self.render_template(
+                "index.html",
+                static=self.static_url,
+                base_url=self.base_url,
+                token=self.settings["token"],
+                page_config=config_data,
+            )
+        )
+
+
+class ExampleApp(LabServerApp):
+    extension_url = "/example"
+    default_url = "/example"
+    app_url = "/example"
+    name = __name__
+    load_other_extensions = False
+    app_name = "JupyterLab Example Cell"
+    static_dir = os.path.join(HERE, "build")
+    templates_dir = os.path.join(HERE, "templates")
+    app_version = version
+    app_settings_dir = os.path.join(HERE, "build", "application_settings")
+    schemas_dir = os.path.join(HERE, "build", "schemas")
+    themes_dir = os.path.join(HERE, "build", "themes")
+    user_settings_dir = os.path.join(HERE, "build", "user_settings")
+    workspaces_dir = os.path.join(HERE, "build", "workspaces")
+
+    def initialize_handlers(self):
+        """Add example handler to Lab Server's handler list."""
+        self.handlers.append(("/example", ExampleHandler))
+
+
+if __name__ == "__main__":
+    ExampleApp.launch_instance()
diff --git a/packages/ui-components/examples/simple-windowed-list/package.json b/packages/ui-components/examples/simple-windowed-list/package.json
new file mode 100644
index 000000000000..10fab9dac438
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/package.json
@@ -0,0 +1,31 @@
+{
+  "name": "@jupyterlab/example-simple-list",
+  "version": "4.0.8",
+  "private": true,
+  "style": "style/index.css",
+  "scripts": {
+    "build": "tsc && webpack",
+    "clean": "rimraf build tsconfig.tsbuildinfo",
+    "watch": "webpack --watch"
+  },
+  "dependencies": {
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/theme-light-extension": "^4.0.8",
+    "@jupyterlab/ui-components": "^4.0.8",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/widgets": "^2.3.0"
+  },
+  "devDependencies": {
+    "css-loader": "^6.7.1",
+    "mini-css-extract-plugin": "^2.7.0",
+    "mini-svg-data-uri": "^1.4.4",
+    "rimraf": "~3.0.0",
+    "style-loader": "~3.3.1",
+    "typescript": "~5.0.4",
+    "webpack": "^5.76.1",
+    "webpack-cli": "^5.0.1"
+  },
+  "styleModule": "style/index.js"
+}
diff --git a/packages/ui-components/examples/simple-windowed-list/src/index.ts b/packages/ui-components/examples/simple-windowed-list/src/index.ts
new file mode 100644
index 000000000000..68a278c02832
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/src/index.ts
@@ -0,0 +1,250 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+/**
+ * @packageDocumentation
+ * @module example-simple-list
+ */
+
+import { PageConfig, URLExt } from '@jupyterlab/coreutils';
+(window as any).__webpack_public_path__ = URLExt.join(
+  PageConfig.getBaseUrl(),
+  'example/'
+);
+
+import '@jupyterlab/application/style/index.css';
+import '@jupyterlab/theme-light-extension/style/theme.css';
+import '../index.css';
+
+import { WindowedList, WindowedListModel } from '@jupyterlab/ui-components';
+
+import { Widget } from '@lumino/widgets';
+import { Message } from '@lumino/messaging';
+import { ObservableList } from '@jupyterlab/observables';
+
+function getRandomInt(max: number): number {
+  return Math.floor(Math.random() * max);
+}
+
+class ContentWidget extends Widget {
+  static createNode(): HTMLElement {
+    let node = document.createElement('div');
+    node.style.minHeight = `${90 + getRandomInt(100)}px`;
+    node.insertAdjacentHTML(
+      'afterbegin',
+      '<div><label></label><textarea placeholder="Placeholder..."></textarea><div><button>+</button><button>-</button></div></div>'
+    );
+    return node;
+  }
+
+  constructor(name: string) {
+    super({ node: ContentWidget.createNode() });
+    this.setFlag(Widget.Flag.DisallowLayout);
+    this.addClass('content');
+    this.id = name.toLowerCase();
+    this.title.label = name;
+    this.title.closable = true;
+    this.title.caption = `Long description for: ${name}`;
+
+    this.node.getElementsByTagName('label')[0].textContent = name;
+    this.addButton = this.node.getElementsByTagName('button')[0];
+    this.removeButton = this.node.getElementsByTagName('button')[1];
+    this.textarea = this.node.getElementsByTagName('textarea')[0];
+  }
+
+  handleEvent(event: Event): void {
+    switch (event.type) {
+      case 'click':
+        this.onClick(event as MouseEvent);
+        break;
+
+      case 'input':
+        this.onInput(event);
+        break;
+
+      default:
+        break;
+    }
+  }
+
+  protected onAfterAttach(msg: Message): void {
+    this.addButton.addEventListener('click', this);
+    this.removeButton.addEventListener('click', this);
+    this.textarea.addEventListener('input', this);
+    super.onAfterAttach(msg);
+  }
+
+  protected onBeforeAttach(msg: Message): void {
+    this.addButton.removeEventListener('click', this);
+    this.removeButton.removeEventListener('click', this);
+    this.textarea.removeEventListener('input', this);
+    super.onBeforeAttach(msg);
+  }
+
+  protected onClick(event: MouseEvent): void {
+    if (event.currentTarget === this.addButton) {
+      this.node.insertAdjacentHTML(
+        'beforeend',
+        `<div class="output" style="min-height:${getRandomInt(
+          200
+        )}px;">Dummy output</div>`
+      );
+    } else {
+      this.node.getElementsByClassName('output')[0].remove();
+    }
+
+    event.stopPropagation();
+  }
+
+  protected onInput(event: Event): void {
+    this.textarea.style.height = `${Math.max(
+      this.textarea.getBoundingClientRect().height,
+      this.textarea.scrollHeight
+    )}px`;
+
+    event.stopPropagation();
+  }
+
+  protected addButton: HTMLButtonElement;
+  protected removeButton: HTMLButtonElement;
+  protected textarea: HTMLTextAreaElement;
+}
+
+class MyList extends WindowedListModel {
+  constructor(itemsList: ObservableList<{ index: number }>) {
+    super({ itemsList });
+  }
+
+  widgetRenderer = (i: number): Widget => {
+    let widget = this.widgetsCache.get(
+      (this.itemsList as ObservableList<{ index: number }>).get(i)
+    );
+    if (!widget) {
+      widget = new ContentWidget(
+        `item-${
+          (this.itemsList as ObservableList<{ index: number }>).get(i).index
+        }`
+      );
+      this.widgetsCache.set(
+        (this.itemsList as ObservableList<{ index: number }>).get(i),
+        widget
+      );
+    }
+    return widget;
+  };
+
+  estimateWidgetSize = (index: number): number => {
+    return 90;
+  };
+
+  private widgetsCache = new WeakMap<{ index: number }, Widget>();
+}
+
+function main(): void {
+  const nItems = 1000;
+  let list = createList(nItems);
+  const model = new MyList(list);
+
+  const panel = new WindowedList({
+    model
+  });
+  panel.id = 'main';
+
+  const inputs = document.createElement('div');
+  inputs.insertAdjacentHTML(
+    'afterbegin',
+    `<label>Number of items:
+      <input type="number"></input>
+    </label>
+    <br/>
+    <label>Overscan items:
+      <input type="number"></input>
+    </label>
+    <br/>
+    <label>Windowing:
+      <input type="checkbox"></input>
+    </label>
+    <br/>
+    <button title="Add widget">+</button>
+    <button title="Remove widget">-</button>
+    <label>Widget index:
+      <input type="number" minimum="0" value="0"></input>
+    </label>
+    <br/>
+    <label>Scroll to index:
+      <input type="number" minimum="0" value="0"></input>
+    </label>
+    <br/>
+    <label>Scroll to offset:
+      <input type="number" minimum="0" value="0"></input>
+    </label>
+    <br/>`
+  );
+  const [
+    count,
+    overscan,
+    windowing,
+    widgetIndexInput,
+    scrollToIndex,
+    scrollToOffset
+  ] = Array.from(inputs.querySelectorAll('input'));
+  const [addWidget, rmWidget] = Array.from(inputs.querySelectorAll('button'));
+
+  count.value = `${nItems}`;
+  count.addEventListener('change', ev => {
+    const count = parseInt((ev.target! as HTMLInputElement).value, 10);
+    list = createList(count);
+    model.itemsList = list;
+  });
+  overscan.addEventListener('change', ev => {
+    model.overscanCount = parseInt((ev.target! as HTMLInputElement).value, 10);
+  });
+  overscan.value = '1';
+  overscan.addEventListener('change', ev => {
+    model.overscanCount = parseInt((ev.target! as HTMLInputElement).value, 10);
+  });
+  windowing.addEventListener('change', ev => {
+    model.windowingActive = (ev.target! as HTMLInputElement).checked;
+  });
+  windowing.checked = true;
+  document.body.insertAdjacentElement('afterbegin', inputs);
+
+  let widgetIndex = widgetIndexInput.valueAsNumber;
+  widgetIndexInput.addEventListener('change', ev => {
+    widgetIndex = widgetIndexInput.valueAsNumber;
+  });
+
+  addWidget.addEventListener('click', () => {
+    list.insert(widgetIndex, { index: list.length });
+  });
+
+  rmWidget.addEventListener('click', () => {
+    list.remove(widgetIndex);
+  });
+
+  scrollToIndex.addEventListener('change', () => {
+    void panel.scrollToItem(scrollToIndex.valueAsNumber);
+  });
+
+  scrollToOffset.addEventListener('change', () => {
+    panel.scrollTo(scrollToOffset.valueAsNumber);
+  });
+
+  // Attach the panel to the DOM.
+  Widget.attach(panel, document.body);
+
+  // Handle widget state.
+  window.addEventListener('resize', () => {
+    panel.update();
+  });
+  panel.update();
+
+  function createList(nItems: number) {
+    const values = new Array<{ index: number }>(nItems);
+    for (let i = 0; i < nItems; i++) {
+      values[i] = { index: i };
+    }
+    return new ObservableList<{ index: number }>({ values });
+  }
+}
+
+window.addEventListener('load', main);
diff --git a/packages/docprovider-extension/style/index.css b/packages/ui-components/examples/simple-windowed-list/style/index.css
similarity index 78%
rename from packages/docprovider-extension/style/index.css
rename to packages/ui-components/examples/simple-windowed-list/style/index.css
index f53611d274e3..2c1a9ab3fae8 100644
--- a/packages/docprovider-extension/style/index.css
+++ b/packages/ui-components/examples/simple-windowed-list/style/index.css
@@ -4,5 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@jupyterlab/docprovider/style/index.css');
+@import url('~@lumino/widgets/style/index.css');
+@import url('~@jupyterlab/ui-components/style/index.css');
 @import url('~@jupyterlab/application/style/index.css');
diff --git a/packages/docprovider-extension/style/index.js b/packages/ui-components/examples/simple-windowed-list/style/index.js
similarity index 80%
rename from packages/docprovider-extension/style/index.js
rename to packages/ui-components/examples/simple-windowed-list/style/index.js
index b508f7435fc6..7dc44357cfba 100644
--- a/packages/docprovider-extension/style/index.js
+++ b/packages/ui-components/examples/simple-windowed-list/style/index.js
@@ -4,5 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@jupyterlab/docprovider/style/index.js';
+import '@lumino/widgets/style/index.js';
+import '@jupyterlab/ui-components/style/index.js';
 import '@jupyterlab/application/style/index.js';
diff --git a/packages/ui-components/examples/simple-windowed-list/templates/error.html b/packages/ui-components/examples/simple-windowed-list/templates/error.html
new file mode 100644
index 000000000000..895abe802849
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/templates/error.html
@@ -0,0 +1,59 @@
+<!DOCTYPE html>
+<!--
+Copyright (c) Jupyter Development Team.
+Distributed under the terms of the Modified BSD License.
+-->
+<html>
+
+<head>
+  <meta charset="utf-8">
+
+  <title>{% block title %}{{page_title | e}}{% endblock %}</title>
+
+  {% block favicon %}<link rel="shortcut icon" type="image/x-icon" href="/static/favicons/favicon.ico">{% endblock %}
+
+</head>
+
+<body>
+
+{% block stylesheet %}
+<style type="text/css">
+/* disable initial hide */
+div#header, div#site {
+    display: block;
+}
+</style>
+{% endblock %}
+{% block site %}
+
+<div class="error">
+    {% block h1_error %}
+    <h1>{{status_code | e}} : {{status_message | e}}</h1>
+    {% endblock h1_error %}
+    {% block error_detail %}
+    {% if message %}
+    <p>The error was:</p>
+    <div class="traceback-wrapper">
+    <pre class="traceback">{{message | e}}</pre>
+    </div>
+    {% endif %}
+    {% endblock %}
+</header>
+
+{% endblock %}
+
+{% block script %}
+<script type='text/javascript'>
+window.onload = function () {
+  var tb = document.getElementsByClassName('traceback')[0];
+  tb.scrollTop = tb.scrollHeight;
+  {% if message %}
+  console.error("{{message | e}}")
+  {% endif %}
+};
+</script>
+{% endblock script %}
+
+</body>
+
+</html>
diff --git a/packages/ui-components/examples/simple-windowed-list/templates/index.html b/packages/ui-components/examples/simple-windowed-list/templates/index.html
new file mode 100644
index 000000000000..a83960734f2c
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/templates/index.html
@@ -0,0 +1,36 @@
+<!--
+  ~ Copyright (c) Jupyter Development Team.
+  ~ Distributed under the terms of the Modified BSD License.
+-->
+
+<!DOCTYPE html>
+<html>
+<head>
+  <title>{{page_config['appName'] | e}}</title>
+</head>
+<body>
+
+  {# Copy so we do not modify the page_config with updates. #}
+  {% set page_config_full = page_config.copy() %}
+
+  {# Set a dummy variable - we just want the side effect of the update. #}
+  {% set _ = page_config_full.update(baseUrl=base_url, wsUrl=ws_url) %}
+
+  <script id="jupyter-config-data" type="application/json">
+    {{ page_config_full | tojson }}
+  </script>
+  <script src="{{page_config['fullStaticUrl'] | e}}/bundle.js" main="index"></script>
+
+  <script type="text/javascript">
+    /* Remove token from URL. */
+    (function () {
+      var parsedUrl = new URL(window.location.href);
+      if (parsedUrl.searchParams.get('token')) {
+        parsedUrl.searchParams.delete('token');
+        window.history.replaceState({ }, '', parsedUrl.href);
+      }
+    })();
+  </script>
+
+</body>
+</html>
diff --git a/packages/ui-components/examples/simple-windowed-list/tsconfig.json b/packages/ui-components/examples/simple-windowed-list/tsconfig.json
new file mode 100644
index 000000000000..c21b188b7842
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/tsconfig.json
@@ -0,0 +1,28 @@
+{
+  "extends": "../../../../tsconfigbase",
+  "compilerOptions": {
+    "outDir": "build",
+    "rootDir": "src",
+    "module": "commonjs",
+    "strictNullChecks": true,
+    "types": ["node"]
+  },
+  "include": ["src/**/*"],
+  "references": [
+    {
+      "path": "../../../application"
+    },
+    {
+      "path": "../../../coreutils"
+    },
+    {
+      "path": "../../../observables"
+    },
+    {
+      "path": "../../../theme-light-extension"
+    },
+    {
+      "path": "../.."
+    }
+  ]
+}
diff --git a/packages/ui-components/examples/simple-windowed-list/webpack.config.js b/packages/ui-components/examples/simple-windowed-list/webpack.config.js
new file mode 100644
index 000000000000..ad033bf565dd
--- /dev/null
+++ b/packages/ui-components/examples/simple-windowed-list/webpack.config.js
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const miniSVGDataURI = require('mini-svg-data-uri');
+
+module.exports = {
+  entry: ['./build/index.js'],
+  output: {
+    path: __dirname + '/build',
+    filename: 'bundle.js'
+  },
+  bail: true,
+  mode: 'development',
+  module: {
+    rules: [
+      { test: /\.css$/, use: ['style-loader', 'css-loader'] },
+      { test: /\.html$/, type: 'asset/resource' },
+      { test: /\.js.map$/, type: 'asset/resource' },
+      {
+        // In .css files, svg is loaded as a data URI.
+        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
+        issuer: /\.css$/,
+        type: 'asset/inline',
+        generator: {
+          dataUrl: content => miniSVGDataURI(content.toString())
+        }
+      },
+      {
+        // In .ts and .tsx files (both of which compile to .js), svg files
+        // must be loaded as a raw string instead of data URIs.
+        test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
+        issuer: /\.js$/,
+        type: 'asset/source'
+      }
+    ]
+  }
+};
diff --git a/packages/ui-components/jest.config.js b/packages/ui-components/jest.config.js
index 178440a1c5f3..cd234acbbdc0 100644
--- a/packages/ui-components/jest.config.js
+++ b/packages/ui-components/jest.config.js
@@ -1,2 +1,7 @@
-const func = require('@jupyterlab/testutils/lib/jest-config');
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+const func = require('@jupyterlab/testing/lib/jest-config');
 module.exports = func(__dirname);
diff --git a/packages/ui-components/package.json b/packages/ui-components/package.json
index f9ba3d460d53..264cd2cadc34 100644
--- a/packages/ui-components/package.json
+++ b/packages/ui-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/ui-components",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - UI components written in React",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -24,70 +24,58 @@
   "files": [
     "lib/**/*.{d.ts,eot,gif,html,jpg,js,js.map,json,png,svg,woff2,ttf}",
     "style/**/*.{css,eot,gif,html,jpg,json,png,svg,woff2,ttf}",
-    "style/index.js"
+    "style/index.js",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:storybook": "build-storybook -c .storybook",
     "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
     "cleansvg": "svgo --config svgo.yaml",
     "docs": "typedoc src",
     "docs:init": "bash docs/build.sh",
-    "storybook": "start-storybook -p 9001 -c .storybook",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@blueprintjs/core": "^3.36.0",
-    "@blueprintjs/select": "^3.15.0",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/translation": "^3.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/commands": "^1.19.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/disposable": "^1.10.0",
-    "@lumino/signaling": "^1.10.0",
-    "@lumino/virtualdom": "^1.14.0",
-    "@lumino/widgets": "^1.37.2",
-    "@rjsf/core": "^3.1.0",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1",
+    "@jupyterlab/coreutils": "^6.0.8",
+    "@jupyterlab/observables": "^5.0.8",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@jupyterlab/translation": "^4.0.8",
+    "@lumino/algorithm": "^2.0.1",
+    "@lumino/commands": "^2.1.3",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/disposable": "^2.1.2",
+    "@lumino/messaging": "^2.0.1",
+    "@lumino/polling": "^2.1.2",
+    "@lumino/properties": "^2.0.1",
+    "@lumino/signaling": "^2.1.2",
+    "@lumino/virtualdom": "^2.0.1",
+    "@lumino/widgets": "^2.3.0",
+    "@rjsf/core": "^5.1.0",
+    "@rjsf/utils": "^5.1.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
     "typestyle": "^2.0.4"
   },
   "devDependencies": {
-    "@babel/core": "^7.10.2",
-    "@babel/preset-env": "^7.10.2",
-    "@jupyterlab/testutils": "^3.6.6",
-    "@storybook/addon-actions": "6.0.20",
-    "@storybook/react": "6.0.20",
-    "@types/jest": "^26.0.10",
-    "@types/react": "^17.0.0",
-    "@types/webpack-env": "^1.14.1",
-    "babel-loader": "^8.0.6",
-    "jest": "^26.4.2",
+    "@jupyterlab/testing": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/react": "^18.0.26",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "svgo": "^1.3.2",
-    "ts-jest": "^26.3.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "svgo": "^3.0.1",
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "peerDependencies": {
-    "react": "^17.0.1"
+    "react": "^18.2.0"
   },
   "publishConfig": {
     "access": "public"
   },
-  "jupyterlab": {
-    "extraStyles": {
-      "blueprintjs": [
-        "icons/lib/css/blueprint-icons.css",
-        "core/lib/css/blueprint.css"
-      ]
-    }
-  },
   "styleModule": "style/index.js"
 }
diff --git a/packages/ui-components/src/FormRendererRegistry.tsx b/packages/ui-components/src/FormRendererRegistry.tsx
new file mode 100644
index 000000000000..fef9289ab4ce
--- /dev/null
+++ b/packages/ui-components/src/FormRendererRegistry.tsx
@@ -0,0 +1,60 @@
+/* -----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+import { IFormRenderer, IFormRendererRegistry } from './tokens';
+
+/**
+ * A registry for property renderers used in the FormEditor component.
+ */
+export class FormRendererRegistry implements IFormRendererRegistry {
+  /**
+   * Adds a renderer for a given property of a given settings plugin.
+   *
+   * The id must follow that structure `<ISettingRegistry.IPlugin.id>.<propertyName>`
+   *
+   * @param id - Unique ID for the given renderer.
+   * @param renderer - A renderer interfacing IFormRenderer.
+   */
+  addRenderer(id: string, renderer: IFormRenderer): void {
+    if (this._renderers[id]) {
+      throw new Error(`A renderer with id '${id}' is already registered.`);
+    }
+    if (!renderer.fieldRenderer && !renderer.widgetRenderer) {
+      throw new Error(
+        `The component for '${id}' cannot be registered as it does not define 'fieldRenderer' nor 'widgetRenderer'.`
+      );
+    }
+
+    const splitPosition = id.lastIndexOf('.');
+    const pluginId = id.substring(0, splitPosition);
+    const propertyName = id.substring(splitPosition + 1);
+    if (pluginId.length == 0 || propertyName.length == 0) {
+      throw new Error(
+        `Form renderer id must follows the structure '<ISettingRegistry.IPlugin.id>.<propertyName>'; got ${id}.`
+      );
+    }
+
+    this._renderers[id] = renderer;
+  }
+
+  /**
+   * Returns all registered renderers in dictionary form.
+   * @returns - A dictionary that maps an id to a renderer.
+   */
+  get renderers(): { [id: string]: IFormRenderer } {
+    return this._renderers;
+  }
+
+  /**
+   * Returns the renderer for the given id
+   * @param id - The unique id for the renderer.
+   * @returns - A renderer interfacing IFormRenderer.
+   */
+  getRenderer(id: string): IFormRenderer {
+    return this._renderers[id];
+  }
+
+  private _renderers: { [id: string]: IFormRenderer } = {};
+}
diff --git a/packages/ui-components/src/blueprint.tsx b/packages/ui-components/src/blueprint.tsx
deleted file mode 100644
index 85697f60443c..000000000000
--- a/packages/ui-components/src/blueprint.tsx
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import {
-  Button as BPButton,
-  IButtonProps as IBPButtonProps
-} from '@blueprintjs/core/lib/cjs/components/button/buttons';
-import {
-  Collapse as BPCollapse,
-  ICollapseProps
-} from '@blueprintjs/core/lib/cjs/components/collapse/collapse';
-import {
-  Checkbox as BPCheckbox,
-  ICheckboxProps
-} from '@blueprintjs/core/lib/cjs/components/forms/controls';
-import {
-  InputGroup as BPInputGroup,
-  IInputGroupProps as IBPInputGroupProps
-} from '@blueprintjs/core/lib/cjs/components/forms/inputGroup';
-import {
-  Select as BPSelect,
-  ISelectProps
-} from '@blueprintjs/select/lib/cjs/components/select/select';
-import * as React from 'react';
-import { LabIcon } from './icon';
-import { classes } from './utils';
-export { Intent } from '@blueprintjs/core/lib/cjs/common/intent';
-
-interface IButtonProps extends IBPButtonProps {
-  title?: string;
-  type?: 'button' | 'submit' | 'reset';
-}
-
-interface IInputGroupProps extends IBPInputGroupProps {
-  rightIcon?: string;
-}
-
-type CommonProps<T> = React.DOMAttributes<T>;
-
-export const Button = (props: IButtonProps & CommonProps<any>) => (
-  <BPButton
-    {...props}
-    className={classes(
-      props.className,
-      props.minimal ? 'minimal' : '',
-      'jp-Button'
-    )}
-  />
-);
-
-export const InputGroup = (props: IInputGroupProps & CommonProps<any>) => {
-  if (props.rightIcon) {
-    return (
-      <BPInputGroup
-        {...props}
-        className={classes(props.className, 'jp-InputGroup')}
-        rightElement={
-          <div className="jp-InputGroupAction">
-            <LabIcon.resolveReact icon={props.rightIcon} />
-          </div>
-        }
-      />
-    );
-  }
-  return (
-    <BPInputGroup
-      {...props}
-      className={classes(props.className, 'jp-InputGroup')}
-    />
-  );
-};
-
-export const Collapse = (props: ICollapseProps & CommonProps<any>) => (
-  <BPCollapse {...props} />
-);
-
-export const Select = (props: ISelectProps<any> & CommonProps<any>) => (
-  <BPSelect {...props} className={classes(props.className, 'jp-Select')} />
-);
-
-export const Checkbox = (props: ICheckboxProps & CommonProps<any>) => (
-  <BPCheckbox {...props} className={classes(props.className, 'jp-Checkbox')} />
-);
diff --git a/packages/ui-components/src/components/accordiontoolbar.ts b/packages/ui-components/src/components/accordiontoolbar.ts
new file mode 100644
index 000000000000..5273921b2c6d
--- /dev/null
+++ b/packages/ui-components/src/components/accordiontoolbar.ts
@@ -0,0 +1,252 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { Message, MessageLoop } from '@lumino/messaging';
+import {
+  AccordionLayout,
+  AccordionPanel,
+  Title,
+  Widget
+} from '@lumino/widgets';
+import { caretDownIcon } from '../icon';
+import { Toolbar } from './toolbar';
+
+/**
+ * Accordion panel layout that adds a toolbar in widget title if present.
+ */
+class AccordionToolbarLayout extends AccordionLayout {
+  /**
+   * Insert a widget into the layout at the specified index.
+   *
+   * @param index - The index at which to insert the widget.
+   *
+   * @param widget - The widget to insert into the layout.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the widgets.
+   *
+   * If the widget is already added to the layout, it will be moved.
+   *
+   * #### Undefined Behavior
+   * An `index` which is non-integral.
+   */
+  insertWidget(index: number, widget: Toolbar.IWidgetToolbar): void {
+    if (widget.toolbar) {
+      this._toolbars.set(widget, widget.toolbar);
+      widget.toolbar.addClass('jp-AccordionPanel-toolbar');
+    }
+    super.insertWidget(index, widget);
+  }
+
+  /**
+   * Remove the widget at a given index from the layout.
+   *
+   * @param index - The index of the widget to remove.
+   *
+   * #### Notes
+   * A widget is automatically removed from the layout when its `parent`
+   * is set to `null`. This method should only be invoked directly when
+   * removing a widget from a layout which has yet to be installed on a
+   * parent widget.
+   *
+   * This method does *not* modify the widget's `parent`.
+   *
+   * #### Undefined Behavior
+   * An `index` which is non-integral.
+   */
+  removeWidgetAt(index: number): void {
+    const widget = this.widgets[index];
+    super.removeWidgetAt(index);
+    // Remove the toolbar after the widget has `removeWidgetAt` will call `detachWidget`
+    if (widget && this._toolbars.has(widget)) {
+      this._toolbars.delete(widget);
+    }
+  }
+
+  /**
+   * Attach a widget to the parent's DOM node.
+   *
+   * @param index - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to attach to the parent.
+   */
+  protected attachWidget(index: number, widget: Widget): void {
+    super.attachWidget(index, widget);
+
+    const toolbar = this._toolbars.get(widget);
+    if (toolbar) {
+      // Send a `'before-attach'` message if the parent is attached.
+      if (this.parent!.isAttached) {
+        MessageLoop.sendMessage(toolbar, Widget.Msg.BeforeAttach);
+      }
+
+      // Insert the toolbar in the title node.
+      this.titles[index].appendChild(toolbar.node);
+
+      // Send an `'after-attach'` message if the parent is attached.
+      if (this.parent!.isAttached) {
+        MessageLoop.sendMessage(toolbar, Widget.Msg.AfterAttach);
+      }
+    }
+  }
+
+  /**
+   * Detach a widget from the parent's DOM node.
+   *
+   * @param index - The previous index of the widget in the layout.
+   *
+   * @param widget - The widget to detach from the parent.
+   */
+  protected detachWidget(index: number, widget: Widget): void {
+    const toolbar = this._toolbars.get(widget);
+    if (toolbar) {
+      // Send a `'before-detach'` message if the parent is attached.
+      if (this.parent!.isAttached) {
+        MessageLoop.sendMessage(toolbar, Widget.Msg.BeforeDetach);
+      }
+
+      // Remove the toolbar in the title node.
+      this.titles[index].removeChild(toolbar.node);
+
+      // Send an `'after-detach'` message if the parent is attached.
+      if (this.parent!.isAttached) {
+        MessageLoop.sendMessage(toolbar, Widget.Msg.AfterDetach);
+      }
+    }
+
+    super.detachWidget(index, widget);
+  }
+
+  /**
+   * A message handler invoked on a `'before-attach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onBeforeAttach(msg: Message): void {
+    this.notifyToolbars(msg);
+    super.onBeforeAttach(msg);
+  }
+
+  /**
+   * A message handler invoked on an `'after-attach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onAfterAttach(msg: Message): void {
+    super.onAfterAttach(msg);
+    this.notifyToolbars(msg);
+  }
+
+  /**
+   * A message handler invoked on a `'before-detach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onBeforeDetach(msg: Message): void {
+    this.notifyToolbars(msg);
+    super.onBeforeDetach(msg);
+  }
+
+  /**
+   * A message handler invoked on an `'after-detach'` message.
+   *
+   * #### Notes
+   * The default implementation of this method forwards the message
+   * to all widgets. It assumes all widget nodes are attached to the
+   * parent widget node.
+   *
+   * This may be reimplemented by subclasses as needed.
+   */
+  protected onAfterDetach(msg: Message): void {
+    super.onAfterDetach(msg);
+    this.notifyToolbars(msg);
+  }
+
+  private notifyToolbars(msg: Message): void {
+    this.widgets.forEach(widget => {
+      const toolbar = this._toolbars.get(widget);
+      if (toolbar) {
+        toolbar.processMessage(msg);
+      }
+    });
+  }
+
+  protected _toolbars = new WeakMap<Widget, Toolbar>();
+}
+
+export namespace AccordionToolbar {
+  /**
+   * Custom renderer for the SidePanel
+   */
+  export class Renderer extends AccordionPanel.Renderer {
+    /**
+     * Render the collapse indicator for a section title.
+     *
+     * @param data - The data to use for rendering the section title.
+     *
+     * @returns A element representing the collapse indicator.
+     */
+    createCollapseIcon(data: Title<Widget>): HTMLElement {
+      const iconDiv = document.createElement('div');
+      caretDownIcon.element({
+        container: iconDiv
+      });
+      return iconDiv;
+    }
+
+    /**
+     * Render the element for a section title.
+     *
+     * @param data - The data to use for rendering the section title.
+     *
+     * @returns A element representing the section title.
+     */
+    createSectionTitle(data: Title<Widget>): HTMLElement {
+      const handle = super.createSectionTitle(data);
+      handle.classList.add('jp-AccordionPanel-title');
+      return handle;
+    }
+  }
+
+  export const defaultRenderer = new Renderer();
+
+  /**
+   * Create an accordion layout for accordion panel with toolbar in the title.
+   *
+   * @param options Panel options
+   * @returns Panel layout
+   *
+   * #### Note
+   *
+   * Default titleSpace is 29 px (default var(--jp-private-toolbar-height) - but not styled)
+   */
+  export function createLayout(
+    options: AccordionPanel.IOptions
+  ): AccordionLayout {
+    return (
+      options.layout ||
+      new AccordionToolbarLayout({
+        renderer: options.renderer || defaultRenderer,
+        orientation: options.orientation,
+        alignment: options.alignment,
+        spacing: options.spacing,
+        titleSpace: options.titleSpace ?? 29
+      })
+    );
+  }
+}
diff --git a/packages/ui-components/src/components/button.tsx b/packages/ui-components/src/components/button.tsx
new file mode 100644
index 000000000000..779b015dff04
--- /dev/null
+++ b/packages/ui-components/src/components/button.tsx
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+import { classes } from '../utils';
+
+/**
+ * Button component property
+ */
+export interface IButtonProps
+  extends React.ButtonHTMLAttributes<HTMLButtonElement> {
+  /**
+   * Whether this button should use minimal styles.
+   */
+  minimal?: boolean;
+  /**
+   * Whether this button should use small styles.
+   */
+  small?: boolean;
+}
+
+/**
+ * Button component
+ *
+ * @param props Component properties
+ * @returns Component
+ */
+export function Button(props: IButtonProps): JSX.Element {
+  const { minimal, small, children, ...others } = props;
+  return (
+    <button
+      {...others}
+      className={classes(
+        props.className,
+        minimal ? 'jp-mod-minimal' : '',
+        small ? 'jp-mod-small' : '',
+        'jp-Button'
+      )}
+    >
+      {children}
+    </button>
+  );
+}
diff --git a/packages/apputils/src/collapse.ts b/packages/ui-components/src/components/collapser.ts
similarity index 71%
rename from packages/apputils/src/collapse.ts
rename to packages/ui-components/src/components/collapser.ts
index 5c5accebb83f..6ac4f376fdcd 100644
--- a/packages/apputils/src/collapse.ts
+++ b/packages/ui-components/src/components/collapser.ts
@@ -1,25 +1,51 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { caretDownIcon, caretUpIcon } from '@jupyterlab/ui-components';
 import { Message } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Panel, PanelLayout, Title, Widget } from '@lumino/widgets';
 
+import { caretDownIcon } from '../icon';
+
+const COLLAPSE_CLASS = 'jp-Collapse';
+
+const CONTENTS_CLASS = 'jp-Collapse-contents';
+
+const HEADER_CLASS = 'jp-Collapse-header';
+
+const HEADER_COLLAPSED_CLASS = 'jp-Collapse-header-collapsed';
+
+const ICON_CLASS = 'jp-Collapser-icon';
+
+const TITLE_CLASS = 'jp-Collapser-title';
+
 /**
  * A panel that supports a collapsible header made from the widget's title.
  * Clicking on the title expands or contracts the widget.
  */
-export class Collapse<T extends Widget = Widget> extends Widget {
-  constructor(options: Collapse.IOptions<T>) {
+export class Collapser<T extends Widget = Widget> extends Widget {
+  constructor(options: Collapser.IOptions<T>) {
     super(options);
     const { widget, collapsed = true } = options;
 
-    this.addClass('jp-Collapse');
+    this.addClass(COLLAPSE_CLASS);
     this._header = new Widget();
-    this._header.addClass('jp-Collapse-header');
+    this._header.addClass(HEADER_CLASS);
+    if (collapsed) {
+      this._header.addClass(HEADER_COLLAPSED_CLASS);
+    }
+    this._header.node.appendChild(
+      caretDownIcon.element({
+        className: ICON_CLASS
+      })
+    );
+    const titleSpan = document.createElement('span');
+    titleSpan.classList.add(TITLE_CLASS);
+    titleSpan.textContent = widget.title.label;
+    this._header.node.appendChild(titleSpan);
+
     this._content = new Panel();
-    this._content.addClass('jp-Collapse-contents');
+    this._content.addClass(CONTENTS_CLASS);
 
     const layout = new PanelLayout();
     this.layout = layout;
@@ -51,7 +77,7 @@ export class Collapse<T extends Widget = Widget> extends Widget {
   /**
    * The collapsed state of the panel.
    */
-  get collapsed() {
+  get collapsed(): boolean {
     return this._collapsed;
   }
   set collapsed(value: boolean) {
@@ -68,21 +94,21 @@ export class Collapse<T extends Widget = Widget> extends Widget {
   /**
    * A signal for when the widget collapse state changes.
    */
-  get collapseChanged(): ISignal<Collapse, void> {
+  get collapseChanged(): ISignal<Collapser, void> {
     return this._collapseChanged;
   }
 
   /**
    * Toggle the collapse state of the panel.
    */
-  toggle() {
+  toggle(): void {
     this.collapsed = !this.collapsed;
   }
 
   /**
    * Dispose the widget.
    */
-  dispose() {
+  dispose(): void {
     if (this.isDisposed) {
       return;
     }
@@ -96,7 +122,7 @@ export class Collapse<T extends Widget = Widget> extends Widget {
   }
 
   /**
-   * Handle the DOM events for the Collapse widget.
+   * Handle the DOM events for the Collapser widget.
    *
    * @param event - The DOM event sent to the panel.
    *
@@ -115,11 +141,11 @@ export class Collapse<T extends Widget = Widget> extends Widget {
     }
   }
 
-  protected onAfterAttach(msg: Message) {
+  protected onAfterAttach(msg: Message): void {
     this._header.node.addEventListener('click', this);
   }
 
-  protected onBeforeDetach(msg: Message) {
+  protected onBeforeDetach(msg: Message): void {
     this._header.node.removeEventListener('click', this);
   }
 
@@ -153,12 +179,11 @@ export class Collapse<T extends Widget = Widget> extends Widget {
   }
 
   private _setHeader(): void {
-    (this._collapsed ? caretUpIcon : caretDownIcon).element({
-      container: this._header.node,
-      label: this._widget.title.label,
-      elementPosition: 'right',
-      height: '28px'
-    });
+    if (this._collapsed) {
+      this._header.addClass(HEADER_COLLAPSED_CLASS);
+    } else {
+      this._header.removeClass(HEADER_COLLAPSED_CLASS);
+    }
   }
 
   private _collapseChanged = new Signal<this, void>(this);
@@ -168,7 +193,7 @@ export class Collapse<T extends Widget = Widget> extends Widget {
   private _widget: T;
 }
 
-export namespace Collapse {
+export namespace Collapser {
   export interface IOptions<T extends Widget = Widget> extends Widget.IOptions {
     widget: T;
     collapsed?: boolean;
diff --git a/packages/ui-components/src/components/form.tsx b/packages/ui-components/src/components/form.tsx
new file mode 100644
index 000000000000..079aa5dd7640
--- /dev/null
+++ b/packages/ui-components/src/components/form.tsx
@@ -0,0 +1,678 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { JSONExt, ReadonlyJSONObject } from '@lumino/coreutils';
+
+import Form, { FormProps, IChangeEvent } from '@rjsf/core';
+
+import {
+  ADDITIONAL_PROPERTY_FLAG,
+  ArrayFieldTemplateProps,
+  canExpand,
+  FieldTemplateProps,
+  getTemplate,
+  ObjectFieldTemplateProps,
+  Registry,
+  UiSchema
+} from '@rjsf/utils';
+
+import React from 'react';
+import {
+  addIcon,
+  caretDownIcon,
+  caretUpIcon,
+  closeIcon,
+  LabIcon
+} from '../icon';
+
+/**
+ * Default `ui:options` for the UiSchema.
+ */
+export const DEFAULT_UI_OPTIONS = {
+  /**
+   * This prevents the submit button from being rendered, by default, as it is
+   * almost never what is wanted.
+   *
+   * Provide any `uiSchema#/ui:options/submitButtonOptions` to override this.
+   */
+  submitButtonOptions: {
+    norender: true
+  }
+};
+
+/**
+ * Form component namespace.
+ */
+export namespace FormComponent {
+  export interface IButtonProps {
+    /**
+     * Button style.
+     */
+    buttonStyle?: 'icons' | 'text';
+    /**
+     * Translator for button text.
+     */
+    translator?: ITranslator;
+  }
+
+  /**
+   * Properties for React JSON schema form's container template (array and object).
+   */
+  export interface ILabCustomizerProps extends IButtonProps {
+    /**
+     * Whether the container is in compact mode or not.
+     * In compact mode the title and description are displayed more compactness.
+     */
+    compact?: boolean;
+    /**
+     * Whether to display if the current value is not the default one.
+     */
+    showModifiedFromDefault?: boolean;
+  }
+
+  /**
+   * Properties of the button to move an item.
+   */
+  export interface IMoveButtonProps extends IButtonProps {
+    /**
+     * Item index to move with this button.
+     */
+    item: ArrayFieldTemplateProps['items'][number];
+    /**
+     * Direction in which to move the item.
+     */
+    direction: 'up' | 'down';
+  }
+
+  /**
+   * Properties of the button to drop an item.
+   */
+  export interface IDropButtonProps extends IButtonProps {
+    /**
+     * Item index to drop with this button.
+     */
+    item: ArrayFieldTemplateProps['items'][number];
+  }
+
+  /**
+   * Properties of the button to add an item.
+   */
+  export interface IAddButtonProps extends IButtonProps {
+    /**
+     * Function to call to add an item.
+     */
+    onAddClick: ArrayFieldTemplateProps['onAddClick'];
+  }
+}
+/**
+ * Button to move an item.
+ *
+ * @returns - the button as a react element.
+ */
+export const MoveButton = (
+  props: FormComponent.IMoveButtonProps
+): JSX.Element => {
+  const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+  let buttonContent: JSX.Element | string;
+
+  /**
+   * Whether the button is disabled or not.
+   */
+  const disabled = () => {
+    if (props.direction === 'up') {
+      return !props.item.hasMoveUp;
+    } else {
+      return !props.item.hasMoveDown;
+    }
+  };
+
+  if (props.buttonStyle === 'icons') {
+    const iconProps: LabIcon.IReactProps = {
+      tag: 'span',
+      elementSize: 'xlarge',
+      elementPosition: 'center'
+    };
+    buttonContent =
+      props.direction === 'up' ? (
+        <caretUpIcon.react {...iconProps}></caretUpIcon.react>
+      ) : (
+        <caretDownIcon.react {...iconProps}></caretDownIcon.react>
+      );
+  } else {
+    buttonContent =
+      props.direction === 'up' ? trans.__('Move up') : trans.__('Move down');
+  }
+
+  const moveTo =
+    props.direction === 'up' ? props.item.index - 1 : props.item.index + 1;
+
+  return (
+    <button
+      className="jp-mod-styled jp-mod-reject jp-ArrayOperationsButton"
+      onClick={props.item.onReorderClick(props.item.index, moveTo)}
+      disabled={disabled()}
+    >
+      {buttonContent}
+    </button>
+  );
+};
+
+/**
+ * Button to drop an item.
+ *
+ * @returns - the button as a react element.
+ */
+export const DropButton = (
+  props: FormComponent.IDropButtonProps
+): JSX.Element => {
+  const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+  let buttonContent: JSX.Element | string;
+
+  if (props.buttonStyle === 'icons') {
+    buttonContent = (
+      <closeIcon.react
+        tag="span"
+        elementSize="xlarge"
+        elementPosition="center"
+      />
+    );
+  } else {
+    buttonContent = trans.__('Remove');
+  }
+
+  return (
+    <button
+      className="jp-mod-styled jp-mod-warn jp-ArrayOperationsButton"
+      onClick={props.item.onDropIndexClick(props.item.index)}
+    >
+      {buttonContent}
+    </button>
+  );
+};
+
+/**
+ * Button to add an item.
+ *
+ * @returns - the button as a react element.
+ */
+export const AddButton = (
+  props: FormComponent.IAddButtonProps
+): JSX.Element => {
+  const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+  let buttonContent: JSX.Element | string;
+
+  if (props.buttonStyle === 'icons') {
+    buttonContent = (
+      <addIcon.react tag="span" elementSize="xlarge" elementPosition="center" />
+    );
+  } else {
+    buttonContent = trans.__('Add');
+  }
+
+  return (
+    <button
+      className="jp-mod-styled jp-mod-reject jp-ArrayOperationsButton"
+      onClick={props.onAddClick}
+    >
+      {buttonContent}
+    </button>
+  );
+};
+
+export interface ILabCustomizerOptions<P>
+  extends FormComponent.ILabCustomizerProps {
+  name?: string;
+  component: React.FunctionComponent<
+    P & Required<FormComponent.ILabCustomizerProps>
+  >;
+}
+
+function customizeForLab<P = any>(
+  options: ILabCustomizerOptions<P>
+): React.FunctionComponent<P> {
+  const {
+    component,
+    name,
+    buttonStyle,
+    compact,
+    showModifiedFromDefault,
+    translator
+  } = options;
+
+  const isCompact = compact ?? false;
+  const button = buttonStyle ?? (isCompact ? 'icons' : 'text');
+
+  const factory = (props: P) =>
+    component({
+      ...props,
+      buttonStyle: button,
+      compact: isCompact,
+      showModifiedFromDefault: showModifiedFromDefault ?? true,
+      translator: translator ?? nullTranslator
+    });
+  if (name) {
+    factory.displayName = name;
+  }
+  return factory;
+}
+
+/**
+ * Fetch field templates from RJSF.
+ */
+function getTemplates(registry: Registry, uiSchema: UiSchema | undefined) {
+  const TitleField = getTemplate<'TitleFieldTemplate'>(
+    'TitleFieldTemplate',
+    registry,
+    uiSchema
+  );
+
+  const DescriptionField = getTemplate<'DescriptionFieldTemplate'>(
+    'DescriptionFieldTemplate',
+    registry,
+    uiSchema
+  );
+
+  return { TitleField, DescriptionField };
+}
+
+/**
+ * Template to allow for custom buttons to re-order/remove entries in an array.
+ * Necessary to create accessible buttons.
+ */
+const CustomArrayTemplateFactory = (
+  options: FormComponent.ILabCustomizerProps
+) =>
+  customizeForLab<ArrayFieldTemplateProps>({
+    ...options,
+    name: 'JupyterLabArrayTemplate',
+    component: props => {
+      const { schema, registry, uiSchema, required } = props;
+      const commonProps = { schema, registry, uiSchema, required };
+      const { TitleField, DescriptionField } = getTemplates(registry, uiSchema);
+
+      return (
+        <div className={props.className}>
+          {props.compact ? (
+            <div className="jp-FormGroup-compactTitle">
+              <div
+                className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem"
+                id={`${props.idSchema.$id}__title`}
+              >
+                {props.title || ''}
+              </div>
+              <div
+                className="jp-FormGroup-description"
+                id={`${props.idSchema.$id}-description`}
+              >
+                {props.schema.description || ''}
+              </div>
+            </div>
+          ) : (
+            <>
+              {props.title && (
+                <TitleField
+                  {...commonProps}
+                  title={props.title}
+                  id={`${props.idSchema.$id}-title`}
+                />
+              )}
+              <DescriptionField
+                {...commonProps}
+                id={`${props.idSchema.$id}-description`}
+                description={props.schema.description ?? ''}
+              />
+            </>
+          )}
+          {props.items.map(item => {
+            return (
+              <div key={item.key} className={item.className}>
+                {item.children}
+                <div className="jp-ArrayOperations">
+                  <MoveButton
+                    buttonStyle={props.buttonStyle}
+                    translator={props.translator}
+                    item={item}
+                    direction="up"
+                  />
+                  <MoveButton
+                    buttonStyle={props.buttonStyle}
+                    translator={props.translator}
+                    item={item}
+                    direction="down"
+                  />
+                  <DropButton
+                    buttonStyle={props.buttonStyle}
+                    translator={props.translator}
+                    item={item}
+                  />
+                </div>
+              </div>
+            );
+          })}
+          {props.canAdd && (
+            <AddButton
+              onAddClick={props.onAddClick}
+              buttonStyle={props.buttonStyle}
+              translator={props.translator}
+            />
+          )}
+        </div>
+      );
+    }
+  });
+
+/**
+ * Template with custom add button, necessary for accessibility and internationalization.
+ */
+const CustomObjectTemplateFactory = (
+  options: FormComponent.ILabCustomizerProps
+) =>
+  customizeForLab<ObjectFieldTemplateProps>({
+    ...options,
+    name: 'JupyterLabObjectTemplate',
+    component: props => {
+      const { schema, registry, uiSchema, required } = props;
+      const commonProps = { schema, registry, uiSchema, required };
+      const { TitleField, DescriptionField } = getTemplates(registry, uiSchema);
+
+      return (
+        <fieldset id={props.idSchema.$id}>
+          {props.compact ? (
+            <div className="jp-FormGroup-compactTitle">
+              <div
+                className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem"
+                id={`${props.idSchema.$id}__title`}
+              >
+                {props.title || ''}
+              </div>
+              <div
+                className="jp-FormGroup-description"
+                id={`${props.idSchema.$id}__description`}
+              >
+                {props.schema.description || ''}
+              </div>
+            </div>
+          ) : (
+            <>
+              {(props.title ||
+                (props.uiSchema || JSONExt.emptyObject)['ui:title']) && (
+                <TitleField
+                  {...commonProps}
+                  id={`${props.idSchema.$id}__title`}
+                  title={
+                    props.title ||
+                    `${(props.uiSchema || JSONExt.emptyObject)['ui:title']}` ||
+                    ''
+                  }
+                />
+              )}
+              <DescriptionField
+                {...commonProps}
+                id={`${props.idSchema.$id}__description`}
+                description={props.schema.description ?? ''}
+              />
+            </>
+          )}
+          {props.properties.map(property => property.content)}
+          {canExpand(props.schema, props.uiSchema, props.formData) && (
+            <AddButton
+              onAddClick={props.onAddClick(props.schema)}
+              buttonStyle={props.buttonStyle}
+              translator={props.translator}
+            />
+          )}
+        </fieldset>
+      );
+    }
+  });
+
+/**
+ * Renders the modified indicator and errors
+ */
+const CustomTemplateFactory = (options: FormComponent.ILabCustomizerProps) =>
+  customizeForLab<FieldTemplateProps>({
+    ...options,
+    name: 'JupyterLabFieldTemplate',
+    component: props => {
+      const trans = (props.translator ?? nullTranslator).load('jupyterlab');
+      let isModified = false;
+      let defaultValue: any;
+      const {
+        formData,
+        schema,
+        label,
+        displayLabel,
+        id,
+        formContext,
+        errors,
+        rawErrors,
+        children,
+        onKeyChange,
+        onDropPropertyClick
+      } = props;
+
+      const { defaultFormData } = formContext;
+      const schemaIds = id.split('_');
+      schemaIds.shift();
+      const schemaId = schemaIds.join('.');
+
+      const isRoot = schemaId === '';
+
+      const hasCustomField =
+        schemaId === (props.uiSchema || JSONExt.emptyObject)['ui:field'];
+
+      if (props.showModifiedFromDefault) {
+        /**
+         * Determine if the field has been modified.
+         * Schema Id is formatted as 'root_<field name>.<nested field name>'
+         * This logic parses out the field name to find the default value
+         * before determining if the field has been modified.
+         */
+
+        defaultValue = schemaIds.reduce(
+          (acc, key) => acc?.[key],
+          defaultFormData
+        );
+        isModified =
+          !isRoot &&
+          formData !== undefined &&
+          defaultValue !== undefined &&
+          !schema.properties &&
+          schema.type !== 'array' &&
+          !JSONExt.deepEqual(formData, defaultValue);
+      }
+
+      const needsDescription =
+        !isRoot &&
+        schema.type != 'object' &&
+        id !=
+          'jp-SettingsEditor-@jupyterlab/shortcuts-extension:shortcuts_shortcuts';
+
+      // While we can implement "remove" button for array items in array template,
+      // object templates do not provide a way to do this instead we need to add
+      // buttons here (and first check if the field can be removed = is additional).
+      const isAdditional = schema.hasOwnProperty(ADDITIONAL_PROPERTY_FLAG);
+
+      const isItem: boolean = !(
+        schema.type === 'object' || schema.type === 'array'
+      );
+
+      return (
+        <div
+          className={`form-group ${
+            displayLabel || schema.type === 'boolean' ? 'small-field' : ''
+          }`}
+        >
+          {!hasCustomField &&
+            (rawErrors ? (
+              // Shows a red indicator for fields that have validation errors
+              <div className="jp-modifiedIndicator jp-errorIndicator" />
+            ) : (
+              // Only show the modified indicator if there are no errors
+              isModified && <div className="jp-modifiedIndicator" />
+            ))}
+          <div
+            className={`jp-FormGroup-content ${
+              props.compact
+                ? 'jp-FormGroup-contentCompact'
+                : 'jp-FormGroup-contentNormal'
+            }`}
+          >
+            {isItem && displayLabel && !isRoot && label && !isAdditional ? (
+              props.compact ? (
+                <div className="jp-FormGroup-compactTitle">
+                  <div className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+                    {label}
+                  </div>
+                  {isItem && schema.description && needsDescription && (
+                    <div className="jp-FormGroup-description">
+                      {schema.description}
+                    </div>
+                  )}
+                </div>
+              ) : (
+                <h3 className="jp-FormGroup-fieldLabel jp-FormGroup-contentItem">
+                  {label}
+                </h3>
+              )
+            ) : (
+              <></>
+            )}
+            {isAdditional && (
+              <input
+                className="jp-FormGroup-contentItem jp-mod-styled"
+                type="text"
+                onBlur={event => onKeyChange(event.target.value)}
+                defaultValue={label}
+              />
+            )}
+            <div
+              className={`${
+                isRoot
+                  ? 'jp-root'
+                  : schema.type === 'object'
+                  ? 'jp-objectFieldWrapper'
+                  : schema.type === 'array'
+                  ? 'jp-arrayFieldWrapper'
+                  : 'jp-inputFieldWrapper jp-FormGroup-contentItem'
+              }`}
+            >
+              {children}
+            </div>
+            {isAdditional && (
+              <button
+                className="jp-FormGroup-contentItem jp-mod-styled jp-mod-warn jp-FormGroup-removeButton"
+                onClick={onDropPropertyClick(label)}
+              >
+                {trans.__('Remove')}
+              </button>
+            )}
+            {!props.compact && schema.description && needsDescription && (
+              <div className="jp-FormGroup-description">
+                {schema.description}
+              </div>
+            )}
+            {isModified && defaultValue !== undefined && (
+              <div className="jp-FormGroup-default">
+                {trans.__(
+                  'Default: %1',
+                  defaultValue !== null ? defaultValue.toLocaleString() : 'null'
+                )}
+              </div>
+            )}
+            <div className="validationErrors">{errors}</div>
+          </div>
+        </div>
+      );
+    }
+  });
+
+/**
+ * FormComponent properties
+ */
+export interface IFormComponentProps<T = ReadonlyJSONObject>
+  extends FormProps<T>,
+    FormComponent.ILabCustomizerProps {
+  /**
+   *
+   */
+  formData: T;
+  /**
+   *
+   */
+  onChange: (e: IChangeEvent<T>) => any;
+  /**
+   *
+   */
+  formContext?: unknown;
+}
+
+/**
+ * Generic rjsf form component for JupyterLab UI.
+ */
+export function FormComponent(props: IFormComponentProps): JSX.Element {
+  const {
+    buttonStyle,
+    compact,
+    showModifiedFromDefault,
+    translator,
+    formContext,
+    ...others
+  } = props;
+
+  const uiSchema = { ...(others.uiSchema || JSONExt.emptyObject) } as UiSchema;
+
+  uiSchema['ui:options'] = { ...DEFAULT_UI_OPTIONS, ...uiSchema['ui:options'] };
+
+  others.uiSchema = uiSchema;
+
+  const { FieldTemplate, ArrayFieldTemplate, ObjectFieldTemplate } =
+    props.templates || JSONExt.emptyObject;
+
+  const customization = {
+    buttonStyle,
+    compact,
+    showModifiedFromDefault,
+    translator
+  };
+
+  const fieldTemplate = React.useMemo(
+    () => FieldTemplate ?? CustomTemplateFactory(customization),
+    [FieldTemplate, buttonStyle, compact, showModifiedFromDefault, translator]
+  ) as React.FunctionComponent;
+
+  const arrayTemplate = React.useMemo(
+    () => ArrayFieldTemplate ?? CustomArrayTemplateFactory(customization),
+    [
+      ArrayFieldTemplate,
+      buttonStyle,
+      compact,
+      showModifiedFromDefault,
+      translator
+    ]
+  ) as React.FunctionComponent;
+
+  const objectTemplate = React.useMemo(
+    () => ObjectFieldTemplate ?? CustomObjectTemplateFactory(customization),
+    [
+      ObjectFieldTemplate,
+      buttonStyle,
+      compact,
+      showModifiedFromDefault,
+      translator
+    ]
+  ) as React.FunctionComponent;
+
+  const templates: Record<string, React.FunctionComponent> = {
+    FieldTemplate: fieldTemplate,
+    ArrayFieldTemplate: arrayTemplate,
+    ObjectFieldTemplate: objectTemplate
+  };
+
+  return (
+    <Form templates={templates} formContext={formContext as any} {...others} />
+  );
+}
diff --git a/packages/ui-components/src/components/htmlselect.tsx b/packages/ui-components/src/components/htmlselect.tsx
index 4dc117c25a48..2dc2eda8685c 100644
--- a/packages/ui-components/src/components/htmlselect.tsx
+++ b/packages/ui-components/src/components/htmlselect.tsx
@@ -43,7 +43,7 @@ export interface IHTMLSelectProps
 }
 
 export class HTMLSelect extends React.Component<IHTMLSelectProps> {
-  public render() {
+  public render(): JSX.Element {
     const {
       className,
       defaultStyle = true,
diff --git a/packages/apputils/src/iframe.ts b/packages/ui-components/src/components/iframe.ts
similarity index 98%
rename from packages/apputils/src/iframe.ts
rename to packages/ui-components/src/components/iframe.ts
index 3c47450caf87..f3503664770f 100644
--- a/packages/apputils/src/iframe.ts
+++ b/packages/ui-components/src/components/iframe.ts
@@ -4,7 +4,7 @@
 import { Widget } from '@lumino/widgets';
 
 /**
- * A phosphor widget which wraps an IFrame.
+ * A Lumino widget which wraps an IFrame.
  */
 export class IFrame extends Widget {
   /**
diff --git a/packages/ui-components/src/components/index.ts b/packages/ui-components/src/components/index.ts
index f417ac256180..ef16a5bfcd76 100644
--- a/packages/ui-components/src/components/index.ts
+++ b/packages/ui-components/src/components/index.ts
@@ -1,7 +1,20 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+export * from './button';
+export * from './collapser';
+export * from './form';
 export * from './htmlselect';
+export * from './iframe';
+export * from './inputgroup';
 export * from './interface';
 export * from './menu';
+export * from './panelwithtoolbar';
+export * from './search';
+export * from './sidepanel';
+export * from './spinner';
+export * from './styling';
 export * from './switch';
+export * from './toolbar';
+export * from './vdom';
+export * from './windowedlist';
diff --git a/packages/ui-components/src/components/inputgroup.tsx b/packages/ui-components/src/components/inputgroup.tsx
new file mode 100644
index 000000000000..447329a63268
--- /dev/null
+++ b/packages/ui-components/src/components/inputgroup.tsx
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import React from 'react';
+import { LabIcon } from '../icon';
+import { classes } from '../utils';
+
+/**
+ * InputGroup component properties
+ */
+export interface IInputGroupProps
+  extends React.InputHTMLAttributes<HTMLInputElement> {
+  /**
+   * Pass a ref to the input element
+   */
+  inputRef?: React.RefObject<HTMLInputElement>;
+  /**
+   * Right icon adornment
+   */
+  rightIcon?: string | LabIcon;
+}
+
+/**
+ * InputGroup component
+ *
+ * @param props Component properties
+ * @returns Component
+ */
+export function InputGroup(props: IInputGroupProps): JSX.Element {
+  const { className, inputRef, rightIcon, ...others } = props;
+  return (
+    <div className={classes('jp-InputGroup', className)}>
+      <input ref={inputRef} {...others}></input>
+      {rightIcon && (
+        <span className="jp-InputGroupAction">
+          {typeof rightIcon === 'string' ? (
+            <LabIcon.resolveReact
+              icon={rightIcon}
+              elementPosition="center"
+              tag="span"
+            />
+          ) : (
+            <rightIcon.react elementPosition="center" tag="span" />
+          )}
+        </span>
+      )}
+    </div>
+  );
+}
diff --git a/packages/ui-components/src/components/menu.ts b/packages/ui-components/src/components/menu.ts
index e15d413ed2ce..14b57ab73029 100644
--- a/packages/ui-components/src/components/menu.ts
+++ b/packages/ui-components/src/components/menu.ts
@@ -43,24 +43,15 @@ export interface IRankedMenu extends IDisposable {
    *
    * @param options - The options for creating the menu item.
    *
-   * @returns The menu item added to the menu.
-   *
-   * @deprecated It will return a `IDisposable` object in v4
+   * @returns The disposable menu item added to the menu.
    */
-  addItem(options: IRankedMenu.IItemOptions): Menu.IItem;
+  addItem(options: IRankedMenu.IItemOptions): IDisposable;
 
   /**
    * A read-only array of the menu items in the menu.
    */
   readonly items: ReadonlyArray<Menu.IItem>;
 
-  /**
-   * The underlying Lumino menu.
-   *
-   * @deprecated will be removed in v4
-   */
-  readonly menu: Menu;
-
   /**
    * Menu rank
    */
@@ -119,16 +110,6 @@ export class RankedMenu extends Menu implements IRankedMenu {
     this._includeSeparators = options.includeSeparators ?? true;
   }
 
-  /**
-   * The underlying Lumino menu.
-   *
-   * @deprecated since v3.1
-   * RankMenu inherits from Menu since v3.1
-   */
-  get menu(): Menu {
-    return this;
-  }
-
   /**
    * Menu rank.
    */
@@ -169,7 +150,7 @@ export class RankedMenu extends Menu implements IRankedMenu {
     const added: IDisposableMenuItem[] = [];
 
     // Insert a separator before the group.
-    // Phosphor takes care of superfluous leading,
+    // Lumino takes care of superfluous leading,
     // trailing, and duplicate separators.
     if (this._includeSeparators) {
       added.push(
@@ -363,11 +344,7 @@ class DisposableMenuItem implements IDisposableMenuItem {
   /**
    * The icon renderer for the menu item.
    */
-  get icon():
-    | VirtualElement.IRenderer
-    | undefined
-    /* <DEPRECATED> */
-    | string /* </DEPRECATED> */ {
+  get icon(): VirtualElement.IRenderer | undefined {
     return this._item.deref()!.icon;
   }
 
diff --git a/packages/ui-components/src/components/panelwithtoolbar.ts b/packages/ui-components/src/components/panelwithtoolbar.ts
new file mode 100644
index 000000000000..a1a16c3bbd01
--- /dev/null
+++ b/packages/ui-components/src/components/panelwithtoolbar.ts
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { Panel } from '@lumino/widgets';
+import { Toolbar } from './toolbar';
+
+/**
+ * A base class for panel widget with toolbar.
+ */
+export class PanelWithToolbar extends Panel implements Toolbar.IWidgetToolbar {
+  constructor(options: PanelWithToolbar.IOptions = {}) {
+    super(options);
+    this._toolbar = new Toolbar();
+  }
+
+  /**
+   * Widget toolbar
+   */
+  get toolbar(): Toolbar {
+    return this._toolbar;
+  }
+
+  protected _toolbar: Toolbar;
+}
+
+/**
+ * Namespace for panel with toolbar
+ */
+export namespace PanelWithToolbar {
+  /**
+   * An options object for creating a panel with toolbar widget.
+   */
+  export interface IOptions extends Panel.IOptions {
+    /**
+     * Custom toolbar
+     */
+    toolbar?: Toolbar;
+  }
+}
diff --git a/packages/apputils/src/search.tsx b/packages/ui-components/src/components/search.tsx
similarity index 89%
rename from packages/apputils/src/search.tsx
rename to packages/ui-components/src/components/search.tsx
index b6109407baa3..f41c3bfb2922 100644
--- a/packages/apputils/src/search.tsx
+++ b/packages/ui-components/src/components/search.tsx
@@ -1,47 +1,57 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { InputGroup } from '@jupyterlab/ui-components';
+import { InputGroup } from './inputgroup';
+import { ReactWidget } from './vdom';
 import { StringExt } from '@lumino/algorithm';
 import React, { useEffect, useState } from 'react';
-import { ReactWidget } from './vdom';
 
 /**
  * The class name added to the filebrowser crumbs node.
  */
 export interface IFilterBoxProps {
   /**
-   * A function to callback when filter is updated.
+   * Whether to use case-sensitive search
    */
-  updateFilter: (
-    filterFn: (item: string) => boolean | Partial<IScore> | null,
-    query?: string
-  ) => void;
+  caseSensitive?: boolean;
 
   /**
-   * Whether to use the fuzzy filter.
+   * Whether the search box is disabled or not.
    */
-  useFuzzyFilter: boolean;
+  disabled?: boolean;
 
   /**
-   * Optional placeholder for the search box.
+   * Whether to force a refresh.
    */
-  placeholder?: string;
+  forceRefresh?: boolean;
 
   /**
-   * Whether to force a refresh.
+   * An optional initial search value.
    */
-  forceRefresh?: boolean;
+  initialQuery?: string;
 
   /**
-   * Whether to use case-sensitive search
+   * Pass a ref to the input element
    */
-  caseSensitive?: boolean;
+  inputRef?: React.RefObject<HTMLInputElement>;
 
   /**
-   * An optional initial search value.
+   * Optional placeholder for the search box.
    */
-  initialQuery?: string;
+  placeholder?: string;
+
+  /**
+   * A function to callback when filter is updated.
+   */
+  updateFilter: (
+    filterFn: (item: string) => Partial<IScore> | null,
+    query?: string
+  ) => void;
+
+  /**
+   * Whether to use the fuzzy filter.
+   */
+  useFuzzyFilter: boolean;
 }
 
 /**
@@ -135,7 +145,7 @@ export const updateFilterFunction = (
   };
 };
 
-export const FilterBox = (props: IFilterBoxProps) => {
+export const FilterBox = (props: IFilterBoxProps): JSX.Element => {
   const [filter, setFilter] = useState(props.initialQuery ?? '');
 
   if (props.forceRefresh) {
@@ -178,11 +188,13 @@ export const FilterBox = (props: IFilterBoxProps) => {
 
   return (
     <InputGroup
+      className="jp-FilterBox"
+      inputRef={props.inputRef}
       type="text"
+      disabled={props.disabled}
       rightIcon="ui-components:search"
       placeholder={props.placeholder}
       onChange={handleChange}
-      className="jp-FilterBox"
       value={filter}
     />
   );
@@ -191,7 +203,7 @@ export const FilterBox = (props: IFilterBoxProps) => {
 /**
  * A widget which hosts a input textbox to filter on file names.
  */
-export const FilenameSearcher = (props: IFilterBoxProps) => {
+export const FilenameSearcher = (props: IFilterBoxProps): ReactWidget => {
   return ReactWidget.create(
     <FilterBox
       updateFilter={props.updateFilter}
diff --git a/packages/ui-components/src/components/sidepanel.ts b/packages/ui-components/src/components/sidepanel.ts
new file mode 100644
index 000000000000..6de4877f5ba3
--- /dev/null
+++ b/packages/ui-components/src/components/sidepanel.ts
@@ -0,0 +1,168 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+import { AccordionPanel, Panel, PanelLayout, Widget } from '@lumino/widgets';
+import { AccordionToolbar } from './accordiontoolbar';
+import { Toolbar } from './toolbar';
+
+/**
+ * A widget meant to be contained in sidebars.
+ *
+ * #### Note
+ * By default the content widget is an accordion panel that supports widget with
+ * associated toolbar to be displayed in the widget title.
+ */
+export class SidePanel extends Widget {
+  constructor(options: SidePanel.IOptions = {}) {
+    super();
+    const layout = (this.layout = new PanelLayout());
+    this.addClass('jp-SidePanel');
+
+    const trans = (this._trans = (options.translator || nullTranslator).load(
+      'jupyterlab'
+    ));
+
+    if (options.header) {
+      this.addHeader(options.header);
+    }
+
+    const content = (this._content =
+      options.content ??
+      new AccordionPanel({
+        ...options,
+        layout: AccordionToolbar.createLayout(options)
+      }));
+    content.node.setAttribute('role', 'region');
+    content.node.setAttribute('aria-label', trans.__('side panel content'));
+    content.addClass('jp-SidePanel-content');
+    layout.addWidget(content);
+
+    if (options.toolbar) {
+      this.addToolbar(options.toolbar);
+    }
+  }
+
+  /**
+   * The content hosted by the widget.
+   */
+  get content(): Panel {
+    return this._content;
+  }
+
+  /**
+   * A panel for widgets that sit on top of the widget.
+   */
+  get header(): Panel {
+    if (!this._header) {
+      this.addHeader();
+    }
+    return this._header;
+  }
+
+  /**
+   * The toolbar hosted by the widget.
+   *
+   * It sits between the header and the content
+   */
+  get toolbar(): Toolbar {
+    if (!this._toolbar) {
+      this.addToolbar();
+    }
+    return this._toolbar;
+  }
+
+  /**
+   * A read-only array of the widgets in the content panel.
+   */
+  get widgets(): ReadonlyArray<Widget> {
+    return this.content.widgets;
+  }
+
+  /**
+   * Add a widget to the content panel bottom.
+   *
+   * @param widget Widget to add
+   */
+  addWidget(widget: Toolbar.IWidgetToolbar): void {
+    this.content.addWidget(widget);
+  }
+
+  /**
+   * Insert a widget at the given position in the content panel.
+   *
+   * @param index Position
+   * @param widget Widget to insert
+   */
+  insertWidget(index: number, widget: Toolbar.IWidgetToolbar): void {
+    this.content.insertWidget(index, widget);
+  }
+
+  private addHeader(header?: Panel) {
+    const theHeader = (this._header = header || new Panel());
+    theHeader.addClass('jp-SidePanel-header');
+
+    (this.layout as PanelLayout).insertWidget(0, theHeader);
+  }
+
+  private addToolbar(toolbar?: Toolbar) {
+    const theToolbar = (this._toolbar = toolbar ?? new Toolbar());
+    theToolbar.addClass('jp-SidePanel-toolbar');
+    theToolbar.node.setAttribute('role', 'navigation');
+    theToolbar.node.setAttribute(
+      'aria-label',
+      this._trans.__('side panel actions')
+    );
+    (this.layout as PanelLayout).insertWidget(
+      (this.layout as PanelLayout).widgets.length - 1,
+      theToolbar
+    );
+  }
+
+  protected _content: Panel;
+  protected _header: Panel;
+  protected _toolbar: Toolbar;
+  protected _trans: TranslationBundle;
+}
+
+/**
+ * The namespace for the `SidePanel` class statics.
+ */
+export namespace SidePanel {
+  /**
+   * An options object for creating a side panel widget.
+   */
+  export interface IOptions extends AccordionPanel.IOptions {
+    /**
+     * The main child of the side panel
+     *
+     * If nothing is provided it fallback to an AccordionToolbar panel.
+     */
+    content?: Panel;
+
+    /**
+     * The header is at the top of the SidePanel,
+     * and that extensions can populate.
+     *
+     * Defaults to an empty Panel if requested otherwise it won't be created.
+     */
+    header?: Panel;
+
+    /**
+     * The toolbar to use for the widget.
+     * It sits between the header and the content
+     *
+     * Defaults to an empty toolbar if requested otherwise it won't be created.
+     */
+    toolbar?: Toolbar;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator;
+  }
+}
diff --git a/packages/apputils/src/spinner.ts b/packages/ui-components/src/components/spinner.ts
similarity index 100%
rename from packages/apputils/src/spinner.ts
rename to packages/ui-components/src/components/spinner.ts
diff --git a/packages/apputils/src/styling.ts b/packages/ui-components/src/components/styling.ts
similarity index 77%
rename from packages/apputils/src/styling.ts
rename to packages/ui-components/src/components/styling.ts
index b0832a533475..3a3fee6e794b 100644
--- a/packages/apputils/src/styling.ts
+++ b/packages/ui-components/src/components/styling.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { caretDownEmptyIcon } from '@jupyterlab/ui-components';
+import { caretDownEmptyIcon } from '../icon';
 
 /**
  * A namespace for node styling.
@@ -39,7 +39,8 @@ export namespace Styling {
       node.classList.add('jp-mod-styled');
     }
     if (node.localName === 'select') {
-      wrapSelect(node as HTMLSelectElement);
+      const multiple = node.hasAttribute('multiple');
+      wrapSelect(node as HTMLSelectElement, multiple);
     }
     const nodes = node.getElementsByTagName(tagName);
     for (let i = 0; i < nodes.length; i++) {
@@ -49,7 +50,8 @@ export namespace Styling {
         child.classList.add(className);
       }
       if (tagName === 'select') {
-        wrapSelect(child as HTMLSelectElement);
+        const multiple = child.hasAttribute('multiple');
+        wrapSelect(child as HTMLSelectElement, multiple);
       }
     }
   }
@@ -57,7 +59,10 @@ export namespace Styling {
   /**
    * Wrap a select node.
    */
-  export function wrapSelect(node: HTMLSelectElement): HTMLElement {
+  export function wrapSelect(
+    node: HTMLSelectElement,
+    multiple?: boolean
+  ): HTMLElement {
     const wrapper = document.createElement('div');
     wrapper.classList.add('jp-select-wrapper');
     node.addEventListener('focus', Private.onFocus);
@@ -68,16 +73,20 @@ export namespace Styling {
     }
     wrapper.appendChild(node);
 
-    // add the icon node
-    wrapper.appendChild(
-      caretDownEmptyIcon.element({
-        tag: 'span',
-        stylesheet: 'select',
-        right: '8px',
-        top: '5px',
-        width: '18px'
-      })
-    );
+    if (multiple) {
+      wrapper.classList.add('multiple');
+    } else {
+      // add the icon node
+      wrapper.appendChild(
+        caretDownEmptyIcon.element({
+          tag: 'span',
+          stylesheet: 'select',
+          right: '8px',
+          top: '5px',
+          width: '18px'
+        })
+      );
+    }
 
     return wrapper;
   }
diff --git a/packages/ui-components/src/components/switch.ts b/packages/ui-components/src/components/switch.ts
index 7829454abd1f..fefba4bc0bfc 100644
--- a/packages/ui-components/src/components/switch.ts
+++ b/packages/ui-components/src/components/switch.ts
@@ -33,7 +33,7 @@ export class Switch extends Widget {
   /**
    * The value of the switch.
    */
-  get value() {
+  get value(): boolean {
     return this._value;
   }
   set value(newValue: boolean) {
@@ -88,7 +88,7 @@ export class Switch extends Widget {
     this._button.addEventListener('click', this);
   }
 
-  protected onBeforeDetach() {
+  protected onBeforeDetach(): void {
     this._button.removeEventListener('click', this);
   }
 
diff --git a/packages/ui-components/src/components/toolbar.tsx b/packages/ui-components/src/components/toolbar.tsx
new file mode 100644
index 000000000000..cc9c954958ec
--- /dev/null
+++ b/packages/ui-components/src/components/toolbar.tsx
@@ -0,0 +1,1375 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+import {
+  ITranslator,
+  nullTranslator,
+  TranslationBundle
+} from '@jupyterlab/translation';
+import {
+  Button,
+  circleEmptyIcon,
+  circleIcon,
+  classes,
+  ellipsesIcon,
+  LabIcon,
+  offlineBoltIcon,
+  refreshIcon,
+  stopIcon
+} from '@jupyterlab/ui-components';
+import { find, IIterator, map, some } from '@lumino/algorithm';
+========
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
+import { find, map, some } from '@lumino/algorithm';
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+import { CommandRegistry } from '@lumino/commands';
+import { ReadonlyJSONObject } from '@lumino/coreutils';
+import { Message, MessageLoop } from '@lumino/messaging';
+import { AttachedProperty } from '@lumino/properties';
+import { Layout, PanelLayout, Widget } from '@lumino/widgets';
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+import * as React from 'react';
+import { ISessionContext, sessionContextDialogs } from '../sessioncontext';
+import { translateKernelStatuses } from '../kernelstatuses';
+import { ReactWidget, UseSignal } from '../vdom';
+import { Throttler } from '@lumino/polling';
+========
+import { Throttler } from '@lumino/polling';
+import * as React from 'react';
+import { Button } from './button';
+import { ellipsesIcon, LabIcon } from '../icon';
+import { classes } from '../utils';
+import { ReactWidget, UseSignal } from './vdom';
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+
+/**
+ * The class name added to toolbars.
+ */
+const TOOLBAR_CLASS = 'jp-Toolbar';
+
+/**
+ * Toolbar pop-up opener button name
+ */
+const TOOLBAR_OPENER_NAME = 'toolbar-popup-opener';
+
+/**
+ * The class name added to toolbar items.
+ */
+const TOOLBAR_ITEM_CLASS = 'jp-Toolbar-item';
+
+/**
+ * Toolbar pop-up opener button name
+ */
+const TOOLBAR_OPENER_NAME = 'toolbar-popup-opener';
+
+/**
+ * The class name added to toolbar spacer.
+ */
+const TOOLBAR_SPACER_CLASS = 'jp-Toolbar-spacer';
+
+/**
+ * A layout for toolbars.
+ *
+ * #### Notes
+ * This layout automatically collapses its height if there are no visible
+ * toolbar widgets, and expands to the standard toolbar height if there are
+ * visible toolbar widgets.
+ */
+class ToolbarLayout extends PanelLayout {
+  /**
+   * A message handler invoked on a `'fit-request'` message.
+   *
+   * If any child widget is visible, expand the toolbar height to the normal
+   * toolbar height.
+   */
+  protected onFitRequest(msg: Message): void {
+    super.onFitRequest(msg);
+    if (this.parent!.isAttached) {
+      // If there are any widgets not explicitly hidden, expand the toolbar to
+      // accommodate them.
+      if (some(this.widgets, w => !w.isHidden)) {
+        this.parent!.node.style.minHeight = 'var(--jp-private-toolbar-height)';
+        this.parent!.removeClass('jp-Toolbar-micro');
+      } else {
+        this.parent!.node.style.minHeight = '';
+        this.parent!.addClass('jp-Toolbar-micro');
+      }
+    }
+
+    // Set the dirty flag to ensure only a single update occurs.
+    this._dirty = true;
+
+    // Notify the ancestor that it should fit immediately. This may
+    // cause a resize of the parent, fulfilling the required update.
+    if (this.parent!.parent) {
+      MessageLoop.sendMessage(this.parent!.parent!, Widget.Msg.FitRequest);
+    }
+
+    // If the dirty flag is still set, the parent was not resized.
+    // Trigger the required update on the parent widget immediately.
+    if (this._dirty) {
+      MessageLoop.sendMessage(this.parent!, Widget.Msg.UpdateRequest);
+    }
+  }
+
+  /**
+   * A message handler invoked on an `'update-request'` message.
+   */
+  protected onUpdateRequest(msg: Message): void {
+    super.onUpdateRequest(msg);
+    if (this.parent!.isVisible) {
+      this._dirty = false;
+    }
+  }
+
+  /**
+   * A message handler invoked on a `'child-shown'` message.
+   */
+  protected onChildShown(msg: Widget.ChildMessage): void {
+    super.onChildShown(msg);
+
+    // Post a fit request for the parent widget.
+    this.parent!.fit();
+  }
+
+  /**
+   * A message handler invoked on a `'child-hidden'` message.
+   */
+  protected onChildHidden(msg: Widget.ChildMessage): void {
+    super.onChildHidden(msg);
+
+    // Post a fit request for the parent widget.
+    this.parent!.fit();
+  }
+
+  /**
+   * A message handler invoked on a `'before-attach'` message.
+   */
+  protected onBeforeAttach(msg: Message): void {
+    super.onBeforeAttach(msg);
+
+    // Post a fit request for the parent widget.
+    this.parent!.fit();
+  }
+
+  /**
+   * Attach a widget to the parent's DOM node.
+   *
+   * @param index - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to attach to the parent.
+   *
+   * #### Notes
+   * This is a reimplementation of the superclass method.
+   */
+  protected attachWidget(index: number, widget: Widget): void {
+    super.attachWidget(index, widget);
+
+    // Post a fit request for the parent widget.
+    this.parent!.fit();
+  }
+
+  /**
+   * Detach a widget from the parent's DOM node.
+   *
+   * @param index - The previous index of the widget in the layout.
+   *
+   * @param widget - The widget to detach from the parent.
+   *
+   * #### Notes
+   * This is a reimplementation of the superclass method.
+   */
+  protected detachWidget(index: number, widget: Widget): void {
+    super.detachWidget(index, widget);
+
+    // Post a fit request for the parent widget.
+    this.parent!.fit();
+  }
+
+  private _dirty = false;
+}
+
+/**
+ * A class which provides a toolbar widget.
+ */
+export class Toolbar<T extends Widget = Widget> extends Widget {
+  /**
+   * Construct a new toolbar widget.
+   */
+  constructor(options: Toolbar.IOptions = {}) {
+    super();
+    this.addClass(TOOLBAR_CLASS);
+    this.layout = options.layout ?? new ToolbarLayout();
+  }
+
+  /**
+   * Get an iterator over the ordered toolbar item names.
+   *
+   * @returns An iterator over the toolbar item names.
+   */
+  names(): IterableIterator<string> {
+    const layout = this.layout as ToolbarLayout;
+    return map(layout.widgets, widget => {
+      return Private.nameProperty.get(widget);
+    });
+  }
+
+  /**
+   * Add an item to the end of the toolbar.
+   *
+   * @param name - The name of the widget to add to the toolbar.
+   *
+   * @param widget - The widget to add to the toolbar.
+   *
+   * @param index - The optional name of the item to insert after.
+   *
+   * @returns Whether the item was added to toolbar.  Returns false if
+   *   an item of the same name is already in the toolbar.
+   *
+   * #### Notes
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  addItem(name: string, widget: T): boolean {
+    const layout = this.layout as ToolbarLayout;
+    return this.insertItem(layout.widgets.length, name, widget);
+  }
+
+  /**
+   * Insert an item into the toolbar at the specified index.
+   *
+   * @param index - The index at which to insert the item.
+   *
+   * @param name - The name of the item.
+   *
+   * @param widget - The widget to add.
+   *
+   * @returns Whether the item was added to the toolbar. Returns false if
+   *   an item of the same name is already in the toolbar.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the items.
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  insertItem(index: number, name: string, widget: T): boolean {
+    const existing = find(this.names(), value => value === name);
+    if (existing) {
+      return false;
+    }
+    widget.addClass(TOOLBAR_ITEM_CLASS);
+    const layout = this.layout as ToolbarLayout;
+
+    const j = Math.max(0, Math.min(index, layout.widgets.length));
+    layout.insertWidget(j, widget);
+
+    Private.nameProperty.set(widget, name);
+    return true;
+  }
+
+  /**
+   * Insert an item into the toolbar at the after a target item.
+   *
+   * @param at - The target item to insert after.
+   *
+   * @param name - The name of the item.
+   *
+   * @param widget - The widget to add.
+   *
+   * @returns Whether the item was added to the toolbar. Returns false if
+   *   an item of the same name is already in the toolbar.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the items.
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  insertAfter(at: string, name: string, widget: T): boolean {
+    return this._insertRelative(at, 1, name, widget);
+  }
+
+  /**
+   * Insert an item into the toolbar at the before a target item.
+   *
+   * @param at - The target item to insert before.
+   *
+   * @param name - The name of the item.
+   *
+   * @param widget - The widget to add.
+   *
+   * @returns Whether the item was added to the toolbar. Returns false if
+   *   an item of the same name is already in the toolbar.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the items.
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  insertBefore(at: string, name: string, widget: T): boolean {
+    return this._insertRelative(at, 0, name, widget);
+  }
+
+  private _insertRelative(
+    at: string,
+    offset: number,
+    name: string,
+    widget: T
+  ): boolean {
+    const nameWithIndex = map(this.names(), (name, i) => {
+      return { name: name, index: i };
+    });
+    const target = find(nameWithIndex, x => x.name === at);
+    if (target) {
+      return this.insertItem(target.index + offset, name, widget);
+    }
+    return false;
+  }
+
+  /**
+   * Handle the DOM events for the widget.
+   *
+   * @param event - The DOM event sent to the widget.
+   *
+   * #### Notes
+   * This method implements the DOM `EventListener` interface and is
+   * called in response to events on the dock panel's node. It should
+   * not be called directly by user code.
+   */
+  handleEvent(event: Event): void {
+    switch (event.type) {
+      case 'click':
+        this.handleClick(event);
+        break;
+      default:
+        break;
+    }
+  }
+
+  /**
+   * Handle a DOM click event.
+   */
+  protected handleClick(event: Event): void {
+    // Stop propagating the click outside the toolbar
+    event.stopPropagation();
+
+    // Clicking a label focuses the corresponding control
+    // that is linked with `for` attribute, so let it be.
+    if (event.target instanceof HTMLLabelElement) {
+      const forId = event.target.getAttribute('for');
+      if (forId && this.node.querySelector(`#${forId}`)) {
+        return;
+      }
+    }
+
+    // If this click already focused a control, let it be.
+    if (this.node.contains(document.activeElement)) {
+      return;
+    }
+
+    // Otherwise, activate the parent widget, which may take focus if desired.
+    if (this.parent) {
+      this.parent.activate();
+    }
+  }
+
+  /**
+   * Handle `after-attach` messages for the widget.
+   */
+  protected onAfterAttach(msg: Message): void {
+    this.node.addEventListener('click', this);
+  }
+
+  /**
+   * Handle `before-detach` messages for the widget.
+   */
+  protected onBeforeDetach(msg: Message): void {
+    this.node.removeEventListener('click', this);
+  }
+}
+
+/**
+ * A class which provides a toolbar widget.
+ */
+export class ReactiveToolbar extends Toolbar<Widget> {
+  /**
+   * Construct a new toolbar widget.
+   */
+  constructor() {
+    super();
+    this.insertItem(0, TOOLBAR_OPENER_NAME, this.popupOpener);
+    this.popupOpener.hide();
+    this._resizer = new Throttler(this._onResize.bind(this), 500);
+  }
+
+  /**
+   * Dispose of the widget and its descendant widgets.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+
+    if (this._resizer) {
+      this._resizer.dispose();
+    }
+
+    super.dispose();
+  }
+
+  /**
+   * Insert an item into the toolbar at the after a target item.
+   *
+   * @param at - The target item to insert after.
+   *
+   * @param name - The name of the item.
+   *
+   * @param widget - The widget to add.
+   *
+   * @returns Whether the item was added to the toolbar. Returns false if
+   *   an item of the same name is already in the toolbar or if the target
+   *   is the toolbar pop-up opener.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the items.
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  insertAfter(at: string, name: string, widget: Widget): boolean {
+    if (at === TOOLBAR_OPENER_NAME) {
+      return false;
+    }
+    return super.insertAfter(at, name, widget);
+  }
+
+  /**
+   * Insert an item into the toolbar at the specified index.
+   *
+   * @param index - The index at which to insert the item.
+   *
+   * @param name - The name of the item.
+   *
+   * @param widget - The widget to add.
+   *
+   * @returns Whether the item was added to the toolbar. Returns false if
+   *   an item of the same name is already in the toolbar.
+   *
+   * #### Notes
+   * The index will be clamped to the bounds of the items.
+   * The item can be removed from the toolbar by setting its parent to `null`.
+   */
+  insertItem(index: number, name: string, widget: Widget): boolean {
+    if (widget instanceof ToolbarPopupOpener) {
+      return super.insertItem(index, name, widget);
+    } else {
+      const j = Math.max(
+        0,
+        Math.min(index, (this.layout as ToolbarLayout).widgets.length - 1)
+      );
+      return super.insertItem(j, name, widget);
+    }
+  }
+
+  /**
+   * A message handler invoked on a `'before-hide'` message.
+   *
+   * It will hide the pop-up panel
+   */
+  onBeforeHide(msg: Message): void {
+    this.popupOpener.hidePopup();
+    super.onBeforeHide(msg);
+  }
+
+  protected onResize(msg: Widget.ResizeMessage): void {
+    super.onResize(msg);
+    if (msg.width > 0 && this._resizer) {
+      void this._resizer.invoke();
+    }
+  }
+
+  private _onResize() {
+    if (this.parent && this.parent.isAttached) {
+      const toolbarWidth = this.node.clientWidth;
+      const opener = this.popupOpener;
+      const openerWidth = 30;
+      const toolbarPadding = 2;
+      const layout = this.layout as ToolbarLayout;
+
+      let width = opener.isHidden
+        ? toolbarPadding
+        : toolbarPadding + openerWidth;
+      let index = 0;
+      const widgetsToRemove = [];
+      const toIndex = layout.widgets.length - 1;
+
+      while (index < toIndex) {
+        const widget = layout.widgets[index];
+        this._saveWidgetWidth(widget);
+        width += this._getWidgetWidth(widget);
+        if (
+          widgetsToRemove.length === 0 &&
+          opener.isHidden &&
+          width + openerWidth > toolbarWidth
+        ) {
+          width += openerWidth;
+        }
+        if (width > toolbarWidth) {
+          widgetsToRemove.push(widget);
+        }
+        index++;
+      }
+
+      while (widgetsToRemove.length > 0) {
+        const widget = widgetsToRemove.pop() as Widget;
+        width -= this._getWidgetWidth(widget);
+        opener.addWidget(widget);
+      }
+
+      if (opener.widgetCount() > 0) {
+        const widgetsToAdd = [];
+        let index = 0;
+        let widget = opener.widgetAt(index);
+        const widgetCount = opener.widgetCount();
+
+        width += this._getWidgetWidth(widget);
+
+        if (widgetCount === 1 && width - openerWidth <= toolbarWidth) {
+          width -= openerWidth;
+        }
+
+        while (width < toolbarWidth && index < widgetCount) {
+          widgetsToAdd.push(widget);
+          index++;
+          widget = opener.widgetAt(index);
+          if (widget) {
+            width += this._getWidgetWidth(widget);
+          } else {
+            break;
+          }
+        }
+
+        while (widgetsToAdd.length > 0) {
+          const widget = widgetsToAdd.shift()!;
+          this.addItem(Private.nameProperty.get(widget), widget);
+        }
+      }
+
+      if (opener.widgetCount() > 0) {
+        opener.updatePopup();
+        opener.show();
+      } else {
+        opener.hide();
+      }
+    }
+  }
+
+  private _saveWidgetWidth(widget: Widget) {
+    const widgetName = Private.nameProperty.get(widget);
+    this._widgetWidths![widgetName] = widget.hasClass(TOOLBAR_SPACER_CLASS)
+      ? 2
+      : widget.node.clientWidth;
+  }
+
+  private _getWidgetWidth(widget: Widget): number {
+    const widgetName = Private.nameProperty.get(widget);
+    return this._widgetWidths![widgetName];
+  }
+
+  protected readonly popupOpener: ToolbarPopupOpener = new ToolbarPopupOpener();
+  private readonly _widgetWidths: { [key: string]: number } = {};
+  private readonly _resizer: Throttler;
+}
+
+/**
+ * The namespace for Toolbar class statics.
+ */
+export namespace Toolbar {
+  /**
+   * The options used to create a toolbar.
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+   */
+  export interface IOptions {
+    /**
+     * Toolbar widget layout.
+     */
+    layout?: Layout;
+  }
+
+  /**
+   * Widget with associated toolbar
+   */
+  export interface IWidgetToolbar extends Widget {
+    /**
+     * Toolbar of actions on the widget
+     */
+    toolbar?: Toolbar;
+  }
+
+  /**
+   * Create an interrupt toolbar item.
+   *
+   * @deprecated since version v3.2
+   * This is dead code now.
+========
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+   */
+  export interface IOptions {
+    /**
+     * Toolbar widget layout.
+     */
+    layout?: Layout;
+  }
+
+  /**
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+   * Create a restart toolbar item.
+   *
+   * @deprecated since v3.2
+   * This is dead code now.
+========
+   * Widget with associated toolbar
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+   */
+  export interface IWidgetToolbar extends Widget {
+    /**
+     * Toolbar of actions on the widget
+     */
+    toolbar?: Toolbar;
+  }
+
+  /**
+   * Create a toolbar spacer item.
+   *
+   * #### Notes
+   * It is a flex spacer that separates the left toolbar items
+   * from the right toolbar items.
+   */
+  export function createSpacerItem(): Widget {
+    return new Private.Spacer();
+  }
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+
+  /**
+   * Create a kernel name indicator item.
+   *
+   * #### Notes
+   * It will display the `'display_name`' of the session context. It can
+   * handle a change in context or kernel.
+   */
+  export function createKernelNameItem(
+    sessionContext: ISessionContext,
+    dialogs?: ISessionContext.IDialogs,
+    translator?: ITranslator
+  ): Widget {
+    const el = ReactWidget.create(
+      <Private.KernelNameComponent
+        sessionContext={sessionContext}
+        dialogs={dialogs ?? sessionContextDialogs}
+        translator={translator}
+      />
+    );
+    el.addClass('jp-KernelName');
+    return el;
+  }
+
+  /**
+   * Create a kernel status indicator item.
+   *
+   * @deprecated since v3.5
+   * The kernel status indicator is now replaced by the execution status indicator.
+   *
+   * #### Notes
+   * It will show a busy status if the kernel status is busy.
+   * It will show the current status in the node title.
+   * It can handle a change to the context or the kernel.
+   */
+  export function createKernelStatusItem(
+    sessionContext: ISessionContext,
+    translator?: ITranslator
+  ): Widget {
+    return new Private.KernelStatus(sessionContext, translator);
+  }
+========
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+}
+
+/**
+ * Namespace for ToolbarButtonComponent.
+ */
+export namespace ToolbarButtonComponent {
+  /**
+   * Interface for ToolbarButtonComponent props.
+   */
+  export interface IProps {
+    className?: string;
+    /**
+     * Data set of the button
+     */
+    dataset?: DOMStringMap;
+    label?: string;
+    icon?: LabIcon.IMaybeResolvable;
+    iconClass?: string;
+    iconLabel?: string;
+    tooltip?: string;
+    onClick?: () => void;
+    enabled?: boolean;
+    pressed?: boolean;
+    pressedIcon?: LabIcon.IMaybeResolvable;
+    pressedTooltip?: string;
+    disabledTooltip?: string;
+
+    /**
+     * Trigger the button on the actual onClick event rather than onMouseDown.
+     *
+     * See note in ToolbarButtonComponent below as to why the default is to
+     * trigger on onMouseDown.
+     */
+    actualOnClick?: boolean;
+
+    /**
+     * The application language translator.
+     */
+    translator?: ITranslator;
+  }
+}
+
+/**
+ * React component for a toolbar button.
+ *
+ * @param props - The props for ToolbarButtonComponent.
+ */
+export function ToolbarButtonComponent(
+  props: ToolbarButtonComponent.IProps
+): JSX.Element {
+  // In some browsers, a button click event moves the focus from the main
+  // content to the button (see https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button#Clicking_and_focus).
+  // We avoid a click event by calling preventDefault in mousedown, and
+  // we bind the button action to `mousedown`.
+  const handleMouseDown = (event: React.MouseEvent) => {
+    // Fire action only when left button is pressed.
+    if (event.button === 0) {
+      event.preventDefault();
+      props.onClick?.();
+    }
+  };
+
+  const handleKeyDown = (event: React.KeyboardEvent) => {
+    const { key } = event;
+    if (key === 'Enter' || key === ' ') {
+      props.onClick?.();
+    }
+  };
+
+  const handleClick = (event: React.MouseEvent) => {
+    if (event.button === 0) {
+      props.onClick?.();
+    }
+  };
+
+  const getTooltip = () => {
+    if (props.enabled === false && props.disabledTooltip) {
+      return props.disabledTooltip;
+    } else if (props.pressed && props.pressedTooltip) {
+      return props.pressedTooltip;
+    } else {
+      return props.tooltip || props.iconLabel;
+    }
+  };
+
+  return (
+    <Button
+      className={
+        props.className
+          ? props.className + ' jp-ToolbarButtonComponent'
+          : 'jp-ToolbarButtonComponent'
+      }
+      aria-pressed={props.pressed}
+      aria-disabled={props.enabled === false}
+      {...props.dataset}
+      disabled={props.enabled === false}
+      onClick={props.actualOnClick ?? false ? handleClick : undefined}
+      onMouseDown={
+        !(props.actualOnClick ?? false) ? handleMouseDown : undefined
+      }
+      onKeyDown={handleKeyDown}
+      title={getTooltip()}
+      minimal
+    >
+      {(props.icon || props.iconClass) && (
+        <LabIcon.resolveReact
+          icon={props.pressed ? props.pressedIcon : props.icon}
+          iconClass={
+            // add some extra classes for proper support of icons-as-css-background
+            classes(props.iconClass, 'jp-Icon')
+          }
+          className="jp-ToolbarButtonComponent-icon"
+          tag="span"
+          stylesheet="toolbarButton"
+        />
+      )}
+      {props.label && (
+        <span className="jp-ToolbarButtonComponent-label">{props.label}</span>
+      )}
+    </Button>
+  );
+}
+
+/**
+ * Adds the toolbar button class to the toolbar widget.
+ * @param w Toolbar button widget.
+ */
+export function addToolbarButtonClass<T extends Widget = Widget>(w: T): T {
+  w.addClass('jp-ToolbarButton');
+  return w;
+}
+
+/**
+ * Lumino Widget version of static ToolbarButtonComponent.
+ */
+export class ToolbarButton extends ReactWidget {
+  /**
+   * Creates a toolbar button
+   * @param props props for underlying `ToolbarButton` component
+   */
+  constructor(private props: ToolbarButtonComponent.IProps = {}) {
+    super();
+    addToolbarButtonClass(this);
+    this._enabled = props.enabled ?? true;
+    this._pressed = this._enabled! && (props.pressed ?? false);
+    this._onClick = props.onClick!;
+  }
+
+  /**
+   * Sets the pressed state for the button
+   * @param value true if button is pressed, false otherwise
+   */
+  set pressed(value: boolean) {
+    if (this.enabled && value !== this._pressed) {
+      this._pressed = value;
+      this.update();
+    }
+  }
+
+  /**
+   * Returns true if button is pressed, false otherwise
+   */
+  get pressed(): boolean {
+    return this._pressed!;
+  }
+
+  /**
+   * Sets the enabled state for the button
+   * @param value true to enable the button, false otherwise
+   */
+  set enabled(value: boolean) {
+    if (value != this._enabled) {
+      this._enabled = value;
+      if (!this._enabled) {
+        this._pressed = false;
+      }
+      this.update();
+    }
+  }
+
+  /**
+   * Returns true if button is enabled, false otherwise
+   */
+  get enabled(): boolean {
+    return this._enabled;
+  }
+
+  /**
+   * Sets the click handler for the button
+   * @param value click handler
+   */
+  set onClick(value: () => void) {
+    if (value !== this._onClick) {
+      this._onClick = value;
+      this.update();
+    }
+  }
+
+  /**
+   * Returns the click handler for the button
+   */
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+  get onClick() {
+========
+  get onClick(): () => void {
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+    return this._onClick!;
+  }
+
+  render(): JSX.Element {
+    return (
+      <ToolbarButtonComponent
+        {...this.props}
+        pressed={this.pressed}
+        enabled={this.enabled}
+        onClick={this.onClick}
+      />
+    );
+  }
+
+  private _pressed: boolean;
+  private _enabled: boolean;
+  private _onClick: () => void;
+}
+
+/**
+ * Namespace for CommandToolbarButtonComponent.
+ */
+export namespace CommandToolbarButtonComponent {
+  /**
+   * Interface for CommandToolbarButtonComponent props.
+   */
+  export interface IProps {
+    /**
+     * Application commands registry
+     */
+    commands: CommandRegistry;
+    /**
+     * Command unique id
+     */
+    id: string;
+    /**
+     * Command arguments
+     */
+    args?: ReadonlyJSONObject;
+    /**
+     * Overrides command icon
+     */
+    icon?: LabIcon;
+    /**
+     * Overrides command label
+     */
+    label?: string;
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+========
+    /**
+     * Overrides command caption
+     */
+    caption?: string;
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+  }
+}
+
+/**
+ * React component for a toolbar button that wraps a command.
+ *
+ * This wraps the ToolbarButtonComponent and watches the command registry
+ * for changes to the command.
+ */
+export function CommandToolbarButtonComponent(
+  props: CommandToolbarButtonComponent.IProps
+): JSX.Element {
+  return (
+    <UseSignal
+      signal={props.commands.commandChanged}
+      shouldUpdate={(sender, args) =>
+        (args.id === props.id && args.type === 'changed') ||
+        args.type === 'many-changed'
+      }
+    >
+      {() => <ToolbarButtonComponent {...Private.propsFromCommand(props)} />}
+    </UseSignal>
+  );
+}
+
+/*
+ * Adds the command toolbar button class to the command toolbar widget.
+ * @param w Command toolbar button widget.
+ */
+export function addCommandToolbarButtonClass(w: Widget): Widget {
+  w.addClass('jp-CommandToolbarButton');
+  return w;
+}
+
+/**
+ * Phosphor Widget version of CommandToolbarButtonComponent.
+ */
+export class CommandToolbarButton extends ReactWidget {
+  /**
+   * Creates a command toolbar button
+   * @param props props for underlying `CommandToolbarButtonComponent` component
+   */
+  constructor(private props: CommandToolbarButtonComponent.IProps) {
+    super();
+    addCommandToolbarButtonClass(this);
+  }
+  render(): JSX.Element {
+    return <CommandToolbarButtonComponent {...this.props} />;
+  }
+}
+
+/**
+ *  A class which provides a toolbar popup
+ *  used to store widgets that don't fit
+ *  in the toolbar when it is resized
+ */
+class ToolbarPopup extends Widget {
+  width: number = 0;
+
+  /**
+   *  Construct a new ToolbarPopup
+   */
+  constructor() {
+    super();
+    this.addClass('jp-Toolbar-responsive-popup');
+    this.layout = new PanelLayout();
+    Widget.attach(this, document.body);
+    this.hide();
+  }
+
+  /**
+   * Updates the width of the popup, this
+   * should match with the toolbar width
+   *
+   * @param width - The width to resize to
+   * @protected
+   */
+  updateWidth(width: number) {
+    if (width > 0) {
+      this.width = width;
+      this.node.style.width = `${width}px`;
+    }
+  }
+
+  /**
+   * Aligns the popup to left bottom of widget
+   *
+   * @param widget the widget to align to
+   * @private
+   */
+  alignTo(widget: Widget) {
+    const {
+      height: widgetHeight,
+      width: widgetWidth,
+      x: widgetX,
+      y: widgetY
+    } = widget.node.getBoundingClientRect();
+    const width = this.width;
+    this.node.style.left = `${widgetX + widgetWidth - width + 1}px`;
+    this.node.style.top = `${widgetY + widgetHeight + 1}px`;
+  }
+
+  /**
+   * Inserts the widget at specified index
+   * @param index the index
+   * @param widget widget to add
+   */
+  insertWidget(index: number, widget: Widget) {
+    (this.layout as PanelLayout).insertWidget(0, widget);
+  }
+
+  /**
+   *  Total number of widgets in the popup
+   */
+  widgetCount() {
+    return (this.layout as PanelLayout).widgets.length;
+  }
+
+  /**
+   * Returns the widget at index
+   * @param index the index
+   */
+  widgetAt(index: number) {
+    return (this.layout as PanelLayout).widgets[index];
+  }
+}
+
+/**
+ *  A class that provides a ToolbarPopupOpener,
+ *  which is a button added to toolbar when
+ *  the toolbar items overflow toolbar width
+ */
+class ToolbarPopupOpener extends ToolbarButton {
+  /**
+   *  Create a new popup opener
+   */
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+  constructor() {
+========
+  constructor(props: ToolbarButtonComponent.IProps = {}) {
+    const trans = (props.translator || nullTranslator).load('jupyterlab');
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+    super({
+      icon: ellipsesIcon,
+      onClick: () => {
+        this.handleClick();
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+      }
+    });
+    this.addClass('jp-Toolbar-responsive-opener');
+========
+      },
+      tooltip: trans.__('More commands')
+    });
+    this.addClass('jp-Toolbar-responsive-opener');
+
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+    this.popup = new ToolbarPopup();
+  }
+
+  /**
+   * Add widget to the popup, prepends widgets
+   * @param widget the widget to add
+   */
+  addWidget(widget: Widget) {
+    this.popup.insertWidget(0, widget);
+  }
+
+  /**
+   * Dispose of the widget and its descendant widgets.
+   *
+   * #### Notes
+   * It is unsafe to use the widget after it has been disposed.
+   *
+   * All calls made to this method after the first are a no-op.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this.popup.dispose();
+    super.dispose();
+  }
+
+  /**
+   * Hides the opener and the popup
+   */
+  hide(): void {
+    super.hide();
+    this.hidePopup();
+  }
+
+  /**
+   * Hides the popup
+   */
+  hidePopup(): void {
+    this.popup.hide();
+  }
+
+  /**
+   *  Updates width and position of the popup
+   *  to align with the toolbar
+   */
+  updatePopup(): void {
+    this.popup.updateWidth(this.parent!.node.clientWidth);
+    this.popup.alignTo(this.parent!);
+  }
+
+  /**
+   * Returns widget at index in the popup
+   * @param index
+   */
+  widgetAt(index: number) {
+    return this.popup.widgetAt(index);
+  }
+
+  /**
+   * Returns total number of widgets in the popup
+   *
+   * @returns Number of widgets
+   */
+  widgetCount(): number {
+    return this.popup.widgetCount();
+  }
+
+  protected handleClick() {
+    this.updatePopup();
+    this.popup.setHidden(!this.popup.isHidden);
+  }
+
+  protected popup: ToolbarPopup;
+}
+
+/**
+ * A namespace for private data.
+ */
+namespace Private {
+  export function propsFromCommand(
+    options: CommandToolbarButtonComponent.IProps
+  ): ToolbarButtonComponent.IProps {
+    const { commands, id, args } = options;
+
+    const iconClass = commands.iconClass(id, args);
+    const iconLabel = commands.iconLabel(id, args);
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+    // DEPRECATED: remove _icon when lumino 2.0 is adopted
+    // if icon is aliasing iconClass, don't use it
+    const _icon = options.icon ?? commands.icon(id, args);
+    const icon = _icon === iconClass ? undefined : _icon;
+========
+    const icon = options.icon ?? commands.icon(id, args);
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+
+    const label = commands.label(id, args);
+    let className = commands.className(id, args);
+    // Add the boolean state classes.
+    if (commands.isToggled(id, args)) {
+      className += ' lm-mod-toggled';
+    }
+    if (!commands.isVisible(id, args)) {
+      className += ' lm-mod-hidden';
+    }
+
+    let tooltip =
+      commands.caption(id, args) || options.label || label || iconLabel;
+    // Shows hot keys in tooltips
+    const binding = commands.keyBindings.find(b => b.command === id);
+    if (binding) {
+      const ks = binding.keys.map(CommandRegistry.formatKeystroke).join(', ');
+      tooltip = `${tooltip} (${ks})`;
+    }
+    const onClick = () => {
+      void commands.execute(id, args);
+    };
+    const enabled = commands.isEnabled(id, args);
+
+    return {
+      className,
+      dataset: { 'data-command': options.id },
+      icon,
+      iconClass,
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+      tooltip,
+========
+      tooltip: options.caption ?? tooltip,
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+      onClick,
+      enabled,
+      label: options.label ?? label
+    };
+  }
+
+  /**
+   * An attached property for the name of a toolbar item.
+   */
+  export const nameProperty = new AttachedProperty<Widget, string>({
+    name: 'name',
+    create: () => ''
+  });
+
+  /**
+   * A spacer widget.
+   */
+  export class Spacer extends Widget {
+    /**
+     * Construct a new spacer widget.
+     */
+    constructor() {
+      super();
+      this.addClass(TOOLBAR_SPACER_CLASS);
+    }
+  }
+<<<<<<<< HEAD:packages/apputils/src/toolbar/widget.tsx
+
+  /**
+   * Namespace for KernelNameComponent.
+   */
+  export namespace KernelNameComponent {
+    /**
+     * Interface for KernelNameComponent props.
+     */
+    export interface IProps {
+      sessionContext: ISessionContext;
+      dialogs: ISessionContext.IDialogs;
+      translator?: ITranslator;
+    }
+  }
+
+  /**
+   * React component for a kernel name button.
+   *
+   * This wraps the ToolbarButtonComponent and watches the kernel
+   * session for changes.
+   */
+
+  export function KernelNameComponent(props: KernelNameComponent.IProps) {
+    const translator = props.translator || nullTranslator;
+    const trans = translator.load('jupyterlab');
+    const callback = () => {
+      void props.dialogs.selectKernel(props.sessionContext, translator);
+    };
+    return (
+      <UseSignal
+        signal={props.sessionContext.kernelChanged}
+        initialSender={props.sessionContext}
+      >
+        {sessionContext => (
+          <ToolbarButtonComponent
+            className={TOOLBAR_KERNEL_NAME_CLASS}
+            onClick={callback}
+            tooltip={trans.__('Switch kernel')}
+            label={sessionContext?.kernelDisplayName}
+          />
+        )}
+      </UseSignal>
+    );
+  }
+
+  /**
+   * A toolbar item that displays kernel status.
+   */
+  export class KernelStatus extends Widget {
+    /**
+     * Construct a new kernel status widget.
+     */
+    constructor(sessionContext: ISessionContext, translator?: ITranslator) {
+      super();
+      this.translator = translator || nullTranslator;
+      this._trans = this.translator.load('jupyterlab');
+      this.addClass(TOOLBAR_KERNEL_STATUS_CLASS);
+      this._statusNames = translateKernelStatuses(this.translator);
+      this._onStatusChanged(sessionContext);
+      sessionContext.statusChanged.connect(this._onStatusChanged, this);
+      sessionContext.connectionStatusChanged.connect(
+        this._onStatusChanged,
+        this
+      );
+    }
+
+    /**
+     * Handle a status on a kernel.
+     */
+    private _onStatusChanged(sessionContext: ISessionContext) {
+      if (this.isDisposed) {
+        return;
+      }
+
+      const status = sessionContext.kernelDisplayStatus;
+      const circleIconProps: LabIcon.IProps = {
+        container: this.node,
+        title: this._trans.__('Kernel %1', this._statusNames[status] || status),
+        stylesheet: 'toolbarButton',
+        alignSelf: 'normal',
+        height: '24px'
+      };
+
+      // set the icon
+      LabIcon.remove(this.node);
+      if (
+        status === 'busy' ||
+        status === 'starting' ||
+        status === 'terminating' ||
+        status === 'restarting' ||
+        status === 'initializing'
+      ) {
+        circleIcon.element(circleIconProps);
+      } else if (
+        status === 'connecting' ||
+        status === 'disconnected' ||
+        status === 'unknown'
+      ) {
+        offlineBoltIcon.element(circleIconProps);
+      } else {
+        circleEmptyIcon.element(circleIconProps);
+      }
+    }
+
+    protected translator: ITranslator;
+    private _trans: TranslationBundle;
+    private readonly _statusNames: Record<
+      ISessionContext.KernelDisplayStatus,
+      string
+    >;
+  }
+========
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/src/components/toolbar.tsx
+}
diff --git a/packages/apputils/src/vdom.ts b/packages/ui-components/src/components/vdom.ts
similarity index 83%
rename from packages/apputils/src/vdom.ts
rename to packages/ui-components/src/components/vdom.ts
index ad945d4082cb..559bbfb848d9 100644
--- a/packages/apputils/src/vdom.ts
+++ b/packages/ui-components/src/components/vdom.ts
@@ -6,16 +6,19 @@ import { Message, MessageLoop } from '@lumino/messaging';
 import { ISignal, Signal } from '@lumino/signaling';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
-import * as ReactDOM from 'react-dom';
+import { createRoot, Root } from 'react-dom/client';
 
 type ReactRenderElement =
   | Array<React.ReactElement<any>>
   | React.ReactElement<any>;
 
 /**
- * An abstract class for a Phosphor widget which renders a React component.
+ * An abstract class for a Lumino widget which renders a React component.
  */
 export abstract class ReactWidget extends Widget {
+  constructor() {
+    super();
+  }
   /**
    * Creates a new `ReactWidget` that renders a constant element.
    * @param element React element to render.
@@ -61,7 +64,10 @@ export abstract class ReactWidget extends Widget {
    */
   protected onBeforeDetach(msg: Message): void {
     // Unmount the component so it can tear down.
-    ReactDOM.unmountComponentAtNode(this.node);
+    if (this._rootDOM !== null) {
+      this._rootDOM.unmount();
+      this._rootDOM = null;
+    }
   }
 
   /**
@@ -72,18 +78,33 @@ export abstract class ReactWidget extends Widget {
   private renderDOM(): Promise<void> {
     return new Promise<void>(resolve => {
       const vnode = this.render();
+      if (this._rootDOM === null) {
+        this._rootDOM = createRoot(this.node);
+      }
       // Split up the array/element cases so type inference chooses the right
       // signature.
       if (Array.isArray(vnode)) {
-        ReactDOM.render(vnode, this.node, resolve);
+        this._rootDOM.render(vnode);
+        // Resolves after the widget has been rendered.
+        // https://github.com/reactwg/react-18/discussions/5#discussioncomment-798304
+        requestIdleCallback(() => resolve());
       } else if (vnode) {
-        ReactDOM.render(vnode, this.node, resolve);
+        this._rootDOM.render(vnode);
+        // Resolves after the widget has been rendered.
+        // https://github.com/reactwg/react-18/discussions/5#discussioncomment-798304
+        requestIdleCallback(() => resolve());
+      } else {
+        // If the virtual node is null, unmount the node content
+        this._rootDOM.unmount();
+        this._rootDOM = null;
+        requestIdleCallback(() => resolve());
       }
     });
   }
 
   // Set whenever a new render is triggered and resolved when it is finished.
   renderPromise?: Promise<void>;
+  private _rootDOM: Root | null = null;
 }
 
 /**
@@ -95,9 +116,9 @@ export abstract class VDomRenderer<
   /**
    * Create a new VDomRenderer
    */
-  constructor(model: T extends null ? void : T) {
+  constructor(model?: T) {
     super();
-    this.model = ((model ?? null) as unknown) as T;
+    this.model = (model ?? null) as unknown as T;
   }
   /**
    * A signal emitted when the model changes.
@@ -135,7 +156,7 @@ export abstract class VDomRenderer<
   /**
    * Dispose this widget.
    */
-  dispose() {
+  dispose(): void {
     if (this.isDisposed) {
       return;
     }
@@ -192,7 +213,7 @@ export interface IUseSignalState<SENDER, ARGS> {
 }
 
 /**
- * UseSignal provides a way to hook up a Phosphor signal to a React element,
+ * UseSignal provides a way to hook up a Lumino signal to a React element,
  * so that the element is re-rendered every time the signal fires.
  *
  * It is implemented through the "render props" technique, using the `children`
@@ -206,7 +227,7 @@ export interface IUseSignalState<SENDER, ARGS> {
  * ```
  * function LiveButton(isActiveSignal: ISignal<any, boolean>) {
  *  return (
- *    <UseSignal signal={isActiveSignal} initialArgs={True}>
+ *    <UseSignal signal={isActiveSignal} initialArgs={true}>
  *     {(_, isActive) => <Button isActive={isActive}>}
  *    </UseSignal>
  *  )
@@ -220,7 +241,7 @@ export interface IUseSignalState<SENDER, ARGS> {
  *  return (
  *    <UseSignal
  *      signal={isActiveSignal}
- *      initialArgs={True}
+ *      initialArgs={true}
  *      children={(_, isActive) => <Button isActive={isActive}>}
  *    />
  *  )
@@ -236,11 +257,11 @@ export class UseSignal<SENDER, ARGS> extends React.Component<
     this.state = { value: [this.props.initialSender, this.props.initialArgs] };
   }
 
-  componentDidMount() {
+  componentDidMount(): void {
     this.props.signal.connect(this.slot);
   }
 
-  componentWillUnmount() {
+  componentWillUnmount(): void {
     this.props.signal.disconnect(this.slot);
   }
 
@@ -252,7 +273,7 @@ export class UseSignal<SENDER, ARGS> extends React.Component<
     this.setState({ value: [sender, args] });
   };
 
-  render() {
+  render(): React.ReactNode {
     return this.props.children(...this.state.value);
   }
 }
diff --git a/packages/ui-components/src/components/windowedlist.ts b/packages/ui-components/src/components/windowedlist.ts
new file mode 100644
index 000000000000..12d6452fae5c
--- /dev/null
+++ b/packages/ui-components/src/components/windowedlist.ts
@@ -0,0 +1,1481 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+/*
+ * This code is inspired by
+ * - react-window https://github.com/bvaughn/react-window
+ * That library is licensed under MIT License (MIT) Copyright (c) 2018 Brian Vaughn
+ * - https://github.com/WICG/virtual-scroller/
+ * Licensed by Contributors under the [W3C Software and Document License](http://www.w3.org/Consortium/Legal/2015/copyright-software-and-document)
+ */
+import { IChangedArgs } from '@jupyterlab/coreutils';
+import { IObservableList } from '@jupyterlab/observables';
+import { ArrayExt } from '@lumino/algorithm';
+import { PromiseDelegate } from '@lumino/coreutils';
+import { IDisposable } from '@lumino/disposable';
+import { Message, MessageLoop } from '@lumino/messaging';
+import { ISignal, Signal } from '@lumino/signaling';
+import { PanelLayout, Widget } from '@lumino/widgets';
+
+/**
+ * Maximal remaining time for idle callback
+ *
+ * Ref: https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API#getting_the_most_out_of_idle_callbacks
+ */
+const MAXIMUM_TIME_REMAINING = 50;
+
+/*
+ * Feature detection
+ *
+ * Ref: https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#improving_scrolling_performance_with_passive_listeners
+ */
+let passiveIfSupported: boolean | { passive: boolean } = false;
+
+try {
+  // @ts-expect-error unknown signature
+  window.addEventListener(
+    'test',
+    null,
+    Object.defineProperty({}, 'passive', {
+      get: function () {
+        passiveIfSupported = { passive: true };
+      }
+    })
+  );
+} catch (err) {
+  // pass no-op
+}
+
+/**
+ * Windowed list abstract model.
+ */
+export abstract class WindowedListModel implements WindowedList.IModel {
+  /**
+   * Constructor
+   *
+   * @param options Constructor options
+   */
+  constructor(options: WindowedList.IModelOptions = {}) {
+    this._widgetCount = options.itemsList?.length ?? options.count ?? 0;
+    this._overscanCount = options.overscanCount ?? 1;
+    this._windowingActive = options.windowingActive ?? true;
+    this.itemsList = options.itemsList ?? null;
+  }
+
+  /**
+   * Provide a best guess for the widget size at position index
+   *
+   * #### Notes
+   *
+   * This function should be very light to compute especially when
+   * returning the default size.
+   * The default value should be constant (i.e. two calls with `null` should
+   * return the same value). But it can change for a given `index`.
+   *
+   * @param index Widget position
+   * @returns Estimated widget size
+   */
+  abstract estimateWidgetSize: (index: number) => number;
+
+  /**
+   * Widget factory for the list items.
+   *
+   * Caching the resulting widgets should be done by the callee.
+   *
+   * @param index List index
+   * @returns The widget at the given position
+   */
+  abstract widgetRenderer: (index: number) => Widget;
+
+  /**
+   * List widget height
+   */
+  get height(): number {
+    return this._height;
+  }
+  set height(h: number) {
+    this._height = h;
+  }
+
+  /**
+   * Test whether the model is disposed.
+   */
+  get isDisposed(): boolean {
+    return this._isDisposed;
+  }
+
+  /**
+   * Items list to be rendered
+   */
+  get itemsList(): IObservableList<any> | null {
+    return this._itemsList;
+  }
+  set itemsList(v: IObservableList<any> | null) {
+    if (this._itemsList !== v) {
+      if (this._itemsList) {
+        this._itemsList.changed.disconnect(this.onListChanged, this);
+      }
+      const oldValue = this._itemsList;
+      this._itemsList = v;
+      if (this._itemsList) {
+        this._itemsList.changed.connect(this.onListChanged, this);
+      } else {
+        this._widgetCount = 0;
+      }
+      this._stateChanged.emit({
+        name: 'list',
+        newValue: this._itemsList,
+        oldValue
+      });
+      this._stateChanged.emit({
+        name: 'count',
+        newValue: this._itemsList?.length ?? 0,
+        oldValue: oldValue?.length ?? 0
+      });
+    }
+  }
+
+  /**
+   * Number of widgets to render in addition to those
+   * visible in the viewport.
+   */
+  get overscanCount(): number {
+    return this._overscanCount;
+  }
+  set overscanCount(newValue: number) {
+    if (newValue >= 1) {
+      if (this._overscanCount !== newValue) {
+        const oldValue = this._overscanCount;
+        this._overscanCount = newValue;
+        this._stateChanged.emit({ name: 'overscanCount', newValue, oldValue });
+      }
+    } else {
+      console.error(`Forbidden non-positive overscan count: got ${newValue}`);
+    }
+  }
+
+  /**
+   * Viewport scroll offset.
+   */
+  get scrollOffset(): number {
+    return this._scrollOffset;
+  }
+  set scrollOffset(offset: number) {
+    this._scrollOffset = offset;
+  }
+
+  /**
+   * Total number of widgets in the list
+   */
+  get widgetCount(): number {
+    return this._itemsList ? this._itemsList.length : this._widgetCount;
+  }
+  set widgetCount(newValue: number) {
+    if (this.itemsList) {
+      console.error(
+        'It is not allow to change the widgets count of a windowed list if a items list is used.'
+      );
+      return;
+    }
+
+    if (newValue >= 0) {
+      if (this._widgetCount !== newValue) {
+        const oldValue = this._widgetCount;
+        this._widgetCount = newValue;
+        this._stateChanged.emit({ name: 'count', newValue, oldValue });
+      }
+    } else {
+      console.error(`Forbidden negative widget count: got ${newValue}`);
+    }
+  }
+
+  /**
+   * Whether windowing is active or not.
+   *
+   * This is true by default.
+   */
+  get windowingActive(): boolean {
+    return this._windowingActive;
+  }
+  set windowingActive(newValue: boolean) {
+    if (newValue !== this._windowingActive) {
+      const oldValue = this._windowingActive;
+      this._windowingActive = newValue;
+
+      this._currentWindow = [-1, -1, -1, -1];
+      this._lastMeasuredIndex = -1;
+      this._widgetSizers = [];
+
+      this._stateChanged.emit({ name: 'windowingActive', newValue, oldValue });
+    }
+  }
+
+  /**
+   * A signal emitted when any model state changes.
+   */
+  get stateChanged(): ISignal<
+    WindowedListModel,
+    IChangedArgs<
+      any,
+      any,
+      'count' | 'index' | 'list' | 'overscanCount' | 'windowingActive'
+    >
+  > {
+    return this._stateChanged;
+  }
+
+  /**
+   * Dispose the model.
+   */
+  dispose(): void {
+    if (this.isDisposed) {
+      return;
+    }
+    this._isDisposed = true;
+    Signal.clearData(this);
+  }
+
+  /**
+   * Get the total list size.
+   *
+   * @returns Total estimated size
+   */
+  getEstimatedTotalSize(): number {
+    let totalSizeOfMeasuredItems = 0;
+
+    if (this._lastMeasuredIndex >= this.widgetCount) {
+      this._lastMeasuredIndex = this.widgetCount - 1;
+    }
+
+    if (this._lastMeasuredIndex >= 0) {
+      const itemMetadata = this._widgetSizers[this._lastMeasuredIndex];
+      totalSizeOfMeasuredItems = itemMetadata.offset + itemMetadata.size;
+    }
+
+    // We can do better than this
+    const numUnmeasuredItems = this.widgetCount - this._lastMeasuredIndex - 1;
+    const totalSizeOfUnmeasuredItems =
+      numUnmeasuredItems * this._estimatedWidgetSize;
+
+    return totalSizeOfMeasuredItems + totalSizeOfUnmeasuredItems;
+  }
+
+  /**
+   * Get the scroll offset to display an item in the viewport.
+   *
+   * By default, the list will scroll as little as possible to ensure the item is visible. You can control the alignment of the item though by specifying a second alignment parameter. Acceptable values are:
+   *
+   *   auto (default) - Scroll as little as possible to ensure the item is visible. (If the item is already visible, it won't scroll at all.)
+   *   smart - If the item is already visible (including the margin), don't scroll at all. If it is less than one viewport away, scroll so that it becomes visible (including the margin). If it is more than one viewport away, scroll so that it is centered within the list.
+   *   center - Center align the item within the list.
+   *   end - Align the item to the end of the list
+   *   start - Align the item to the beginning of the list
+   *
+   * @param index Item index
+   * @param align Where to align the item in the viewport
+   * @param margin In 'smart' mode the viewport proportion to add
+   * @returns The needed scroll offset
+   */
+  getOffsetForIndexAndAlignment(
+    index: number,
+    align: WindowedList.ScrollToAlign = 'auto',
+    margin: number = 0.25
+  ): number {
+    const boundedMargin =
+      align === 'smart' ? Math.min(Math.max(0.0, margin), 1.0) : 0.0;
+    const size = this._height;
+    const itemMetadata = this._getItemMetadata(index);
+
+    // Get estimated total size after ItemMetadata is computed,
+    // To ensure it reflects actual measurements instead of just estimates.
+    const estimatedTotalSize = this.getEstimatedTotalSize();
+
+    const topOffset = Math.max(
+      0,
+      Math.min(estimatedTotalSize - size, itemMetadata.offset)
+    );
+    const bottomOffset = Math.max(
+      0,
+      itemMetadata.offset - size + itemMetadata.size
+    );
+
+    if (align === 'smart') {
+      if (
+        this._scrollOffset >= bottomOffset - size &&
+        this._scrollOffset <= topOffset + size
+      ) {
+        align = 'auto';
+      } else {
+        align = 'center';
+      }
+    }
+
+    switch (align) {
+      case 'start':
+        return topOffset;
+      case 'end':
+        return bottomOffset;
+      case 'center':
+        return Math.round(bottomOffset + (topOffset - bottomOffset) / 2);
+      case 'auto':
+      default:
+        if (
+          this._scrollOffset >= bottomOffset &&
+          this._scrollOffset <= itemMetadata.offset
+        ) {
+          return this._scrollOffset;
+        } else if (this._scrollOffset < bottomOffset) {
+          return bottomOffset + boundedMargin * size;
+        } else {
+          return Math.max(0, topOffset - boundedMargin * size);
+        }
+    }
+  }
+
+  /**
+   * Compute the items range to display.
+   *
+   * It returns ``null`` if the range does not need to be updated.
+   *
+   * @returns The current items range to display
+   */
+  getRangeToRender(): WindowedList.WindowIndex | null {
+    let newWindowIndex: [number, number, number, number] = [
+      0,
+      Math.max(this.widgetCount - 1, -1),
+      0,
+      Math.max(this.widgetCount - 1, -1)
+    ];
+
+    const previousLastMeasuredIndex = this._lastMeasuredIndex;
+    if (this.windowingActive) {
+      newWindowIndex = this._getRangeToRender();
+    }
+    const [startIndex, stopIndex] = newWindowIndex;
+
+    if (
+      previousLastMeasuredIndex <= stopIndex ||
+      this._currentWindow[0] !== startIndex ||
+      this._currentWindow[1] !== stopIndex
+    ) {
+      this._currentWindow = newWindowIndex;
+      return newWindowIndex;
+    }
+
+    return null;
+  }
+
+  /**
+   * Return the viewport top position and height for range spanning from
+   * ``startIndex`` to ``stopIndex``.
+   *
+   * @param startIndex First item in viewport index
+   * @param stopIndex Last item in viewport index
+   * @returns The viewport top position and its height
+   */
+  getSpan(startIndex: number, stopIndex: number): [number, number] {
+    const startSize = this._getItemMetadata(startIndex);
+    const top = startSize.offset;
+    const stopSize = this._getItemMetadata(stopIndex);
+    const height = stopSize.offset - startSize.offset + stopSize.size;
+    return [top, height];
+  }
+
+  /**
+   * WindowedListModel caches offsets and measurements for each index for performance purposes.
+   * This method clears that cached data for all items after (and including) the specified index.
+   *
+   * The list will automatically re-render after the index is reset.
+   *
+   * @param index
+   */
+  resetAfterIndex(index: number): void {
+    const oldValue = this._lastMeasuredIndex;
+    this._lastMeasuredIndex = Math.min(index, this._lastMeasuredIndex);
+    if (this._lastMeasuredIndex !== oldValue) {
+      this._stateChanged.emit({ name: 'index', newValue: index, oldValue });
+    }
+  }
+
+  /**
+   * Update item sizes.
+   *
+   * This should be called when the real item sizes has been
+   * measured.
+   *
+   * @param sizes New sizes per item index
+   * @returns Whether some sizes changed or not
+   */
+  setWidgetSize(sizes: { index: number; size: number }[]): boolean {
+    if (this._currentWindow[0] >= 0) {
+      let minIndex = Infinity;
+      for (const item of sizes) {
+        const key = item.index;
+        const size = item.size;
+
+        if (this._widgetSizers[key].size != size) {
+          this._widgetSizers[key].size = size;
+          minIndex = Math.min(minIndex, key);
+        }
+        // Always set the flag in case the size estimator provides perfect result
+        this._widgetSizers[key].measured = true;
+      }
+
+      // If some sizes changed
+      if (minIndex != Infinity) {
+        // Invalid follow-up index
+        this._lastMeasuredIndex = Math.min(this._lastMeasuredIndex, minIndex);
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  /**
+   * Callback on list changes
+   *
+   * @param list List items
+   * @param changes List change
+   */
+  protected onListChanged(
+    list: IObservableList<Widget>,
+    changes: IObservableList.IChangedArgs<Widget>
+  ): void {
+    switch (changes.type) {
+      case 'add':
+        this._widgetSizers.splice(
+          changes.newIndex,
+          0,
+          ...new Array(changes.newValues.length).map(() => {
+            return { offset: 0, size: this._estimatedWidgetSize };
+          })
+        );
+        this.resetAfterIndex(changes.newIndex - 1);
+        break;
+      case 'move':
+        ArrayExt.move(this._widgetSizers, changes.oldIndex, changes.newIndex);
+        this.resetAfterIndex(Math.min(changes.newIndex, changes.oldIndex) - 1);
+        break;
+      case 'remove':
+        this._widgetSizers.splice(changes.oldIndex, changes.oldValues.length);
+        this.resetAfterIndex(changes.oldIndex - 1);
+        break;
+      case 'set':
+        this.resetAfterIndex(changes.newIndex - 1);
+        break;
+    }
+  }
+
+  private _getItemMetadata(index: number): WindowedList.ItemMetadata {
+    if (index > this._lastMeasuredIndex) {
+      let offset = 0;
+      if (this._lastMeasuredIndex >= 0) {
+        const itemMetadata = this._widgetSizers[this._lastMeasuredIndex];
+        offset = itemMetadata.offset + itemMetadata.size;
+      }
+
+      for (let i = this._lastMeasuredIndex + 1; i <= index; i++) {
+        let size = this._widgetSizers[i]?.measured
+          ? this._widgetSizers[i].size
+          : this.estimateWidgetSize(i);
+
+        this._widgetSizers[i] = {
+          offset,
+          size,
+          measured: this._widgetSizers[i]?.measured
+        };
+
+        offset += size;
+      }
+
+      this._lastMeasuredIndex = index;
+    }
+
+    for (let i = 0; i <= this._lastMeasuredIndex; i++) {
+      const sizer = this._widgetSizers[i];
+      if (i === 0) {
+        if (sizer.offset !== 0) {
+          throw new Error('First offset is not null');
+        }
+      } else {
+        const previous = this._widgetSizers[i - 1];
+        if (sizer.offset !== previous.offset + previous.size) {
+          throw new Error(`Sizer ${i} has incorrect offset.`);
+        }
+      }
+    }
+
+    return this._widgetSizers[index];
+  }
+
+  private _findNearestItem(offset: number): number {
+    const lastMeasuredItemOffset =
+      this._lastMeasuredIndex > 0
+        ? this._widgetSizers[this._lastMeasuredIndex].offset
+        : 0;
+
+    if (lastMeasuredItemOffset >= offset) {
+      // If we've already measured items within this range just use a binary search as it's faster.
+      return this._findNearestItemBinarySearch(
+        this._lastMeasuredIndex,
+        0,
+        offset
+      );
+    } else {
+      // If we haven't yet measured this high, fallback to an exponential search with an inner binary search.
+      // The exponential search avoids pre-computing sizes for the full set of items as a binary search would.
+      // The overall complexity for this approach is O(log n).
+      return this._findNearestItemExponentialSearch(
+        Math.max(0, this._lastMeasuredIndex),
+        offset
+      );
+    }
+  }
+
+  private _findNearestItemBinarySearch(
+    high: number,
+    low: number,
+    offset: number
+  ): number {
+    while (low <= high) {
+      const middle = low + Math.floor((high - low) / 2);
+      const currentOffset = this._getItemMetadata(middle).offset;
+
+      if (currentOffset === offset) {
+        return middle;
+      } else if (currentOffset < offset) {
+        low = middle + 1;
+      } else if (currentOffset > offset) {
+        high = middle - 1;
+      }
+    }
+
+    if (low > 0) {
+      return low - 1;
+    } else {
+      return 0;
+    }
+  }
+
+  private _findNearestItemExponentialSearch(
+    index: number,
+    offset: number
+  ): number {
+    let interval = 1;
+
+    while (
+      index < this.widgetCount &&
+      this._getItemMetadata(index).offset < offset
+    ) {
+      index += interval;
+      interval *= 2;
+    }
+
+    return this._findNearestItemBinarySearch(
+      Math.min(index, this.widgetCount - 1),
+      Math.floor(index / 2),
+      offset
+    );
+  }
+
+  private _getRangeToRender(): WindowedList.WindowIndex {
+    const widgetCount = this.widgetCount;
+
+    if (widgetCount === 0) {
+      return [-1, -1, -1, -1];
+    }
+
+    const startIndex = this._getStartIndexForOffset(this._scrollOffset);
+    const stopIndex = this._getStopIndexForStartIndex(
+      startIndex,
+      this._scrollOffset
+    );
+
+    const overscanBackward = Math.max(1, this.overscanCount);
+    const overscanForward = Math.max(1, this.overscanCount);
+
+    return [
+      Math.max(0, startIndex - overscanBackward),
+      Math.max(0, Math.min(widgetCount - 1, stopIndex + overscanForward)),
+      startIndex,
+      stopIndex
+    ];
+  }
+
+  private _getStartIndexForOffset(offset: number): number {
+    return this._findNearestItem(offset);
+  }
+
+  private _getStopIndexForStartIndex(
+    startIndex: number,
+    scrollOffset: number
+  ): number {
+    const size = this._height;
+    const itemMetadata = this._getItemMetadata(startIndex);
+    const maxOffset = scrollOffset + size;
+
+    let offset = itemMetadata.offset + itemMetadata.size;
+    let stopIndex = startIndex;
+
+    while (stopIndex < this.widgetCount - 1 && offset < maxOffset) {
+      stopIndex++;
+      offset += this._getItemMetadata(stopIndex).size;
+    }
+
+    return stopIndex;
+  }
+
+  /**
+   * Default widget size estimation
+   */
+  protected _estimatedWidgetSize: number = WindowedList.DEFAULT_WIDGET_SIZE;
+  protected _stateChanged = new Signal<
+    WindowedListModel,
+    IChangedArgs<
+      any,
+      any,
+      'count' | 'index' | 'list' | 'overscanCount' | 'windowingActive'
+    >
+  >(this);
+
+  private _currentWindow: WindowedList.WindowIndex = [-1, -1, -1, -1];
+  private _height: number = 0;
+  private _isDisposed = false;
+  private _itemsList: IObservableList<any> | null = null;
+  private _lastMeasuredIndex: number = -1;
+  private _overscanCount = 1;
+  private _scrollOffset: number = 0;
+  private _widgetCount = 0;
+  private _widgetSizers: WindowedList.ItemMetadata[] = [];
+  private _windowingActive = true;
+}
+
+/**
+ * Windowed list widget
+ */
+export class WindowedList<
+  T extends WindowedList.IModel = WindowedList.IModel
+> extends Widget {
+  /**
+   * Default widget size
+   */
+  static readonly DEFAULT_WIDGET_SIZE = 50;
+
+  /**
+   * Constructor
+   *
+   * @param options Constructor options
+   */
+  constructor(options: WindowedList.IOptions<T>) {
+    // TODO probably needs to be able to customize outer HTML tag (could be ul / ol / table, ...)
+    const node = document.createElement('div');
+    node.className = 'jp-WindowedPanel-outer';
+    const innerElement = node.appendChild(document.createElement('div'));
+    innerElement.className = 'jp-WindowedPanel-inner';
+    const windowContainer = innerElement.appendChild(
+      document.createElement('div')
+    );
+    windowContainer.className = 'jp-WindowedPanel-window';
+    super({ node });
+    super.layout = options.layout ?? new WindowedLayout();
+    this._viewModel = options.model;
+    this._innerElement = innerElement;
+    this._isScrolling = null;
+    this._windowElement = windowContainer;
+    this._scrollToItem = null;
+    this._scrollRepaint = null;
+    this._scrollUpdateWasRequested = false;
+    this._resizeObserver = null;
+
+    this._viewModel.stateChanged.connect(this.onStateChanged, this);
+  }
+
+  /**
+   * Whether the parent is hidden or not.
+   *
+   * This should be set externally if a container is hidden to
+   * stop updating the widget size when hidden.
+   */
+  get isParentHidden(): boolean {
+    return this._isParentHidden;
+  }
+  set isParentHidden(v: boolean) {
+    this._isParentHidden = v;
+  }
+
+  /**
+   * Widget layout
+   */
+  get layout(): WindowedLayout {
+    return super.layout as WindowedLayout;
+  }
+
+  /**
+   * Viewport
+   */
+  get viewportNode(): HTMLDivElement {
+    return this._windowElement;
+  }
+
+  /**
+   * Windowed list view model
+   */
+  protected get viewModel(): T {
+    return this._viewModel;
+  }
+
+  /**
+   * Callback on event.
+   *
+   * @param event Event
+   */
+  handleEvent(event: Event): void {
+    switch (event.type) {
+      case 'scroll':
+        this.onScroll(event);
+        break;
+    }
+  }
+
+  /**
+   * Scroll to the specified offset `scrollTop`.
+   *
+   * @param scrollOffset Offset to scroll
+   *
+   * @deprecated since v4 This is an internal helper. Prefer calling `scrollToItem`.
+   */
+  scrollTo(scrollOffset: number): void {
+    if (!this.viewModel.windowingActive) {
+      this.node.scrollTo({ top: scrollOffset });
+      return;
+    }
+
+    scrollOffset = Math.max(0, scrollOffset);
+
+    if (scrollOffset !== this.viewModel.scrollOffset) {
+      this.viewModel.scrollOffset = scrollOffset;
+      this._scrollUpdateWasRequested = true;
+
+      this.update();
+    }
+  }
+
+  /**
+   * Scroll to the specified item.
+   *
+   * By default, the list will scroll as little as possible to ensure the item is visible. You can control the alignment of the item though by specifying a second alignment parameter. Acceptable values are:
+   *
+   *   auto (default) - Scroll as little as possible to ensure the item is visible. (If the item is already visible, it won't scroll at all.)
+   *   smart - If the item is already visible (including the margin), don't scroll at all. If it is less than one viewport away, scroll so that it becomes visible (including the margin). If it is more than one viewport away, scroll so that it is centered within the list.
+   *   center - Center align the item within the list.
+   *   end - Align the item to the end of the list
+   *   start - Align the item to the beginning of the list
+   *
+   * @param index Item index to scroll to
+   * @param align Type of alignment
+   * @param margin In 'smart' mode the viewport proportion to add
+   */
+  scrollToItem(
+    index: number,
+    align: WindowedList.ScrollToAlign = 'auto',
+    margin: number = 0.25
+  ): Promise<void> {
+    if (!this.viewModel.windowingActive) {
+      const widget = this.layout.widgets[index];
+      if (widget?.node.scrollIntoView) {
+        widget.node.scrollIntoView({
+          block: ['auto', 'smart'].includes(align)
+            ? 'nearest'
+            : (align as ScrollLogicalPosition)
+        });
+      }
+      return Promise.resolve();
+    }
+
+    if (
+      !this._isScrolling ||
+      this._scrollToItem === null ||
+      this._scrollToItem[0] !== index ||
+      this._scrollToItem[1] !== align
+    ) {
+      if (this._isScrolling) {
+        this._isScrolling.reject('Scrolling to a new item is requested.');
+      }
+
+      this._isScrolling = new PromiseDelegate<void>();
+    }
+
+    this._scrollToItem = [index, align];
+    this._resetScrollToItem();
+    this.scrollTo(
+      this.viewModel.getOffsetForIndexAndAlignment(
+        Math.max(0, Math.min(index, this._viewModel.widgetCount - 1)),
+        align,
+        margin
+      )
+    );
+
+    return this._isScrolling.promise;
+  }
+
+  /**
+   * A message handler invoked on an `'after-attach'` message.
+   */
+  protected onAfterAttach(msg: Message): void {
+    super.onAfterAttach(msg);
+    if (this._viewModel.windowingActive) {
+      this._addListeners();
+    } else {
+      this._applyNoWindowingStyles();
+    }
+    this.viewModel.height = this.node.getBoundingClientRect().height;
+  }
+
+  /**
+   * A message handler invoked on an `'before-detach'` message.
+   */
+  protected onBeforeDetach(msg: Message): void {
+    if (this._viewModel.windowingActive) {
+      this._removeListeners();
+    }
+  }
+
+  /**
+   * Callback on scroll event
+   *
+   * @param event Scroll event
+   */
+  protected onScroll(event: Event): void {
+    const { clientHeight, scrollHeight, scrollTop } =
+      event.currentTarget as HTMLDivElement;
+
+    // TBC Firefox is emitting two events one with 1px diff then the _real_ scroll
+    if (
+      !this._scrollUpdateWasRequested &&
+      Math.abs(this.viewModel.scrollOffset - scrollTop) > 1
+    ) {
+      // Test if the scroll event is jumping to the list bottom
+      // if (Math.abs(scrollHeight - clientHeight - scrollTop) < 1) {
+      //   // FIXME Does not work because it happens in multiple segments in between which the sizing is changing
+      //   // due to widget resizing. A possible fix would be to keep track of the "old" scrollHeight - clientHeight
+      //   // up to some quiet activity.
+      //   this.scrollToItem(this.widgetCount, 'end');
+      // } else {
+      const scrollOffset = Math.max(
+        0,
+        Math.min(scrollTop, scrollHeight - clientHeight)
+      );
+      this.viewModel.scrollOffset = scrollOffset;
+      this._scrollUpdateWasRequested = false;
+
+      this.update();
+      // }
+    }
+  }
+
+  /**
+   * A message handler invoked on an `'resize-request'` message.
+   */
+  protected onResize(msg: Widget.ResizeMessage): void {
+    this.viewModel.height =
+      msg.height >= 0 ? msg.height : this.node.getBoundingClientRect().height;
+    super.onResize(msg);
+  }
+
+  /**
+   * Callback on view model change
+   *
+   * @param model Windowed list model
+   * @param changes Change
+   */
+  protected onStateChanged(
+    model: WindowedList.IModel,
+    changes: IChangedArgs<number | boolean, number | boolean, string>
+  ): void {
+    switch (changes.name) {
+      case 'windowingActive':
+        if (this.viewModel.windowingActive) {
+          this._addListeners();
+          this.onScroll({ currentTarget: this.node } as any);
+          // Bail as onScroll will trigger update
+          return;
+        } else {
+          this._removeListeners();
+        }
+        break;
+    }
+    this.update();
+  }
+
+  /**
+   * A message handler invoked on an `'update-request'` message.
+   *
+   * #### Notes
+   * The default implementation of this handler is a no-op.
+   */
+  protected onUpdateRequest(msg: Message): void {
+    if (this.viewModel.windowingActive) {
+      // Throttle update request
+      if (this._scrollRepaint === null) {
+        this._needsUpdate = false;
+        this._scrollRepaint = window.requestAnimationFrame(() => {
+          this._scrollRepaint = null;
+          this._update();
+          if (this._needsUpdate) {
+            this.update();
+          }
+        });
+      } else {
+        // Force re rendering if some changes happen during rendering.
+        this._needsUpdate = true;
+      }
+    } else {
+      this._update();
+    }
+  }
+
+  private _addListeners() {
+    if (!this._resizeObserver) {
+      this._resizeObserver = new ResizeObserver(
+        this._onWidgetResize.bind(this)
+      );
+    }
+    for (const widget of this.layout.widgets) {
+      this._resizeObserver.observe(widget.node);
+      widget.disposed.connect(
+        () => this._resizeObserver?.unobserve(widget.node)
+      );
+    }
+    this.node.addEventListener('scroll', this, passiveIfSupported);
+    this._windowElement.style.position = 'absolute';
+  }
+
+  private _applyNoWindowingStyles() {
+    this._windowElement.style.position = 'relative';
+    this._windowElement.style.top = '0px';
+  }
+
+  private _removeListeners() {
+    this.node.removeEventListener('scroll', this);
+    this._resizeObserver?.disconnect();
+    this._resizeObserver = null;
+    this._applyNoWindowingStyles();
+  }
+
+  private _update(): void {
+    if (this.isDisposed || !this.layout) {
+      return;
+    }
+
+    const newWindowIndex = this.viewModel.getRangeToRender();
+
+    if (newWindowIndex !== null) {
+      const [startIndex, stopIndex] = newWindowIndex;
+      const toAdd: Widget[] = [];
+      if (stopIndex >= 0) {
+        for (let index = startIndex; index <= stopIndex; index++) {
+          const widget = this.viewModel.widgetRenderer(index);
+          widget.dataset.windowedListIndex = `${index}`;
+          toAdd.push(widget);
+        }
+      }
+      const nWidgets = this.layout.widgets.length;
+      // Remove not needed widgets
+      for (let itemIdx = nWidgets - 1; itemIdx >= 0; itemIdx--) {
+        if (!toAdd.includes(this.layout.widgets[itemIdx])) {
+          this._resizeObserver?.unobserve(this.layout.widgets[itemIdx].node);
+          this.layout.removeWidget(this.layout.widgets[itemIdx]);
+        }
+      }
+
+      for (let index = 0; index < toAdd.length; index++) {
+        const item = toAdd[index];
+        if (this._resizeObserver && !this.layout.widgets.includes(item)) {
+          this._resizeObserver.observe(item.node);
+          item.disposed.connect(
+            () => this._resizeObserver?.unobserve(item.node)
+          );
+        }
+
+        // The widget may have moved due to drag-and-drop
+        this.layout.insertWidget(index, item);
+      }
+
+      if (this.viewModel.windowingActive) {
+        if (stopIndex >= 0) {
+          // Read this value after creating the cells.
+          // So their actual sizes are taken into account
+          const estimatedTotalHeight = this.viewModel.getEstimatedTotalSize();
+
+          // Update inner container height
+          this._innerElement.style.height = `${estimatedTotalHeight}px`;
+
+          // Update position of window container
+          const [top, minHeight] = this.viewModel.getSpan(
+            startIndex,
+            stopIndex
+          );
+          this._windowElement.style.top = `${top}px`;
+          this._windowElement.style.minHeight = `${minHeight}px`;
+        } else {
+          // Update inner container height
+          this._innerElement.style.height = `0px`;
+
+          // Update position of window container
+          this._windowElement.style.top = `0px`;
+          this._windowElement.style.minHeight = `0px`;
+        }
+
+        // Update scroll
+        if (this._scrollUpdateWasRequested) {
+          this.node.scrollTop = this.viewModel.scrollOffset;
+          this._scrollUpdateWasRequested = false;
+        }
+      }
+    }
+
+    let index2 = -1;
+    for (const w of this.viewportNode.children) {
+      const currentIdx = parseInt(
+        (w as HTMLElement).dataset.windowedListIndex!,
+        10
+      );
+      if (currentIdx < index2) {
+        throw new Error('Inconsistent dataset index');
+      } else {
+        index2 = currentIdx;
+      }
+    }
+  }
+
+  private _onWidgetResize(entries: ResizeObserverEntry[]): void {
+    this._resetScrollToItem();
+
+    if (this.isHidden || this.isParentHidden) {
+      return;
+    }
+
+    const newSizes: { index: number; size: number }[] = [];
+    for (let entry of entries) {
+      // Update size only if item is attached to the DOM
+      if (entry.target.isConnected) {
+        // Rely on the data attribute as some nodes may be hidden instead of detach
+        // to preserve state.
+        newSizes.push({
+          index: parseInt(
+            (entry.target as HTMLElement).dataset.windowedListIndex!,
+            10
+          ),
+          size: entry.borderBoxSize[0].blockSize
+        });
+      }
+    }
+
+    // If some sizes changed
+    if (this.viewModel.setWidgetSize(newSizes)) {
+      // Update the list
+      if (this._scrollToItem) {
+        this.scrollToItem(...this._scrollToItem).catch(reason => {
+          console.log(reason);
+        });
+      }
+
+      this.update();
+    }
+  }
+
+  private _resetScrollToItem(): void {
+    if (this._resetScrollToItemTimeout) {
+      clearTimeout(this._resetScrollToItemTimeout);
+    }
+
+    if (this._scrollToItem) {
+      this._resetScrollToItemTimeout = window.setTimeout(() => {
+        this._scrollToItem = null;
+        if (this._isScrolling) {
+          this._isScrolling.resolve();
+          this._isScrolling = null;
+        }
+      }, MAXIMUM_TIME_REMAINING);
+    }
+  }
+
+  protected _viewModel: T;
+  private _innerElement: HTMLDivElement;
+  private _isParentHidden: boolean;
+  private _isScrolling: PromiseDelegate<void> | null;
+  private _needsUpdate = false;
+  private _windowElement: HTMLDivElement;
+  private _resetScrollToItemTimeout: number | null;
+  private _resizeObserver: ResizeObserver | null;
+  private _scrollRepaint: number | null;
+  private _scrollToItem: [number, WindowedList.ScrollToAlign] | null;
+  private _scrollUpdateWasRequested: boolean;
+}
+
+/**
+ * Customized layout for windowed list container.
+ */
+export class WindowedLayout extends PanelLayout {
+  /**
+   * Constructor
+   */
+  constructor() {
+    super({ fitPolicy: 'set-no-constraint' });
+  }
+
+  /**
+   * Specialized parent type definition
+   */
+  get parent(): WindowedList | null {
+    return super.parent as WindowedList | null;
+  }
+  set parent(value: WindowedList | null) {
+    super.parent = value;
+  }
+
+  /**
+   * Attach a widget to the parent's DOM node.
+   *
+   * @param index - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to attach to the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation adds the widgets's node to the parent's
+   * node at the proper location, and sends the appropriate attach
+   * messages to the widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is added to the parent's node.
+   */
+  protected attachWidget(index: number, widget: Widget): void {
+    // Look up the next sibling reference node.
+    let ref = this.parent!.viewportNode.children[index];
+
+    // Send a `'before-attach'` message if the parent is attached.
+    if (this.parent!.isAttached) {
+      MessageLoop.sendMessage(widget, Widget.Msg.BeforeAttach);
+    }
+
+    // Insert the widget's node before the sibling.
+    this.parent!.viewportNode.insertBefore(widget.node, ref);
+
+    // Send an `'after-attach'` message if the parent is attached.
+    if (this.parent!.isAttached) {
+      MessageLoop.sendMessage(widget, Widget.Msg.AfterAttach);
+    }
+  }
+
+  /**
+   * Detach a widget from the parent's DOM node.
+   *
+   * @param index - The previous index of the widget in the layout.
+   *
+   * @param widget - The widget to detach from the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation removes the widget's node from the
+   * parent's node, and sends the appropriate detach messages to the
+   * widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is removed from the parent's node.
+   */
+  protected detachWidget(index: number, widget: Widget): void {
+    // Send a `'before-detach'` message if the parent is attached.
+    if (this.parent!.isAttached) {
+      MessageLoop.sendMessage(widget, Widget.Msg.BeforeDetach);
+    }
+
+    // Remove the widget's node from the parent.
+    this.parent!.viewportNode.removeChild(widget.node);
+
+    // Send an `'after-detach'` message if the parent is attached.
+    if (this.parent!.isAttached) {
+      MessageLoop.sendMessage(widget, Widget.Msg.AfterDetach);
+    }
+  }
+
+  /**
+   * Move a widget in the parent's DOM node.
+   *
+   * @param fromIndex - The previous index of the widget in the layout.
+   *
+   * @param toIndex - The current index of the widget in the layout.
+   *
+   * @param widget - The widget to move in the parent.
+   *
+   * #### Notes
+   * This method is called automatically by the panel layout at the
+   * appropriate time. It should not be called directly by user code.
+   *
+   * The default implementation moves the widget's node to the proper
+   * location in the parent's node and sends the appropriate attach and
+   * detach messages to the widget if the parent is attached to the DOM.
+   *
+   * Subclasses may reimplement this method to control how the widget's
+   * node is moved in the parent's node.
+   */
+  protected moveWidget(
+    fromIndex: number,
+    toIndex: number,
+    widget: Widget
+  ): void {
+    // Optimize move without de-/attaching as motion appends with parent attached
+
+    // Case fromIndex === toIndex, already checked in PanelLayout.insertWidget
+
+    // Look up the next sibling reference node.
+    let ref = this.parent!.viewportNode.children[toIndex];
+    if (fromIndex < toIndex) {
+      ref.insertAdjacentElement('afterend', widget.node);
+    } else {
+      ref.insertAdjacentElement('beforebegin', widget.node);
+    }
+  }
+
+  /**
+   * A message handler invoked on an `'update-request'` message.
+   *
+   * #### Notes
+   * This is a reimplementation of the base class method,
+   * and is a no-op.
+   */
+  protected onUpdateRequest(msg: Message): void {
+    // This is a no-op.
+  }
+}
+
+/**
+ * A namespace for windowed list
+ */
+export namespace WindowedList {
+  /**
+   * Windowed list model interface
+   */
+  export interface IModel extends IDisposable {
+    /**
+     * Provide a best guess for the widget size at position index
+     *
+     * #### Notes
+     *
+     * This function should be very light to compute especially when
+     * returning the default size.
+     * The default value should be constant (i.e. two calls with `null` should
+     * return the same value). But it can change for a given `index`.
+     *
+     * @param index Widget position
+     * @returns Estimated widget size
+     */
+    estimateWidgetSize: (index: number) => number;
+
+    /**
+     * Get the total list size.
+     *
+     * @returns Total estimated size
+     */
+    getEstimatedTotalSize(): number;
+
+    /**
+     * Get the scroll offset to display an item in the viewport.
+     *
+     * By default, the list will scroll as little as possible to ensure the item is visible. You can control the alignment of the item though by specifying a second alignment parameter. Acceptable values are:
+     *
+     *   auto (default) - Scroll as little as possible to ensure the item is visible. (If the item is already visible, it won't scroll at all.)
+     *   smart - If the item is already visible (including the margin), don't scroll at all. If it is less than one viewport away, scroll so that it becomes visible (including the margin). If it is more than one viewport away, scroll so that it is centered within the list.
+     *   center - Center align the item within the list.
+     *   end - Align the item to the end of the list
+     *   start - Align the item to the beginning of the list
+     *
+     * @param index Item index
+     * @param align Where to align the item in the viewport
+     * @param margin In 'smart' mode the viewport proportion to add
+     * @returns The needed scroll offset
+     */
+    getOffsetForIndexAndAlignment(
+      index: number,
+      align?: ScrollToAlign,
+      margin?: number
+    ): number;
+    /**
+     * Compute the items range to display.
+     *
+     * It returns ``null`` if the range does not need to be updated.
+     *
+     * @returns The current items range to display
+     */
+    getRangeToRender(): WindowIndex | null;
+
+    /**
+     * Return the viewport top position and height for range spanning from
+     * ``startIndex`` to ``stopIndex``.
+     *
+     * @param start First item in viewport index
+     * @param stop Last item in viewport index
+     * @returns The viewport top position and its height
+     */
+    getSpan(start: number, stop: number): [number, number];
+
+    /**
+     * List widget height
+     */
+    height: number;
+
+    /**
+     * Items list to be rendered
+     */
+    itemsList: {
+      length: number;
+      changed: ISignal<any, IObservableList.IChangedArgs<any>>;
+    } | null;
+
+    /**
+     * Number of widgets to render in addition to those
+     * visible in the viewport.
+     */
+    overscanCount: number;
+
+    /**
+     * WindowedListModel caches offsets and measurements for each index for performance purposes.
+     * This method clears that cached data for all items after (and including) the specified index.
+     *
+     * The list will automatically re-render after the index is reset.
+     *
+     * @param index
+     */
+    resetAfterIndex(index: number): void;
+
+    /**
+     * Viewport scroll offset.
+     */
+    scrollOffset: number;
+
+    /**
+     * Update item sizes.
+     *
+     * This should be called when the real item sizes has been
+     * measured.
+     *
+     * @param sizes New sizes per item index
+     * @returns Whether some sizes changed or not
+     */
+    setWidgetSize(sizes: { index: number; size: number }[]): boolean;
+
+    /**
+     * A signal emitted when any model state changes.
+     */
+    readonly stateChanged: ISignal<
+      IModel,
+      IChangedArgs<
+        any,
+        any,
+        'count' | 'index' | 'list' | 'overscanCount' | 'windowingActive'
+      >
+    >;
+
+    /**
+     * Total number of widgets in the list
+     */
+    widgetCount: number;
+
+    /**
+     * Whether windowing is active or not.
+     */
+    windowingActive: boolean;
+
+    /**
+     * Widget factory for the list items.
+     *
+     * Caching the resulting widgets should be done by the callee.
+     *
+     * @param index List index
+     * @returns The widget at the given position
+     */
+    widgetRenderer: (index: number) => Widget;
+  }
+
+  /**
+   * Windowed list model constructor options
+   */
+  export interface IModelOptions {
+    /**
+     * Total number of widgets in the list.
+     *
+     * #### Notes
+     * If an observable list is provided this will be ignored.
+     */
+    count?: number;
+
+    /**
+     * Dynamic list of items
+     */
+    itemsList?: IObservableList<any>;
+
+    /**
+     * Number of widgets to render in addition to those
+     * visible in the viewport.
+     */
+    overscanCount?: number;
+
+    /**
+     * Whether windowing is active or not.
+     *
+     * This is true by default.
+     */
+    windowingActive?: boolean;
+  }
+
+  /**
+   * Windowed list view constructor options
+   */
+  export interface IOptions<
+    T extends WindowedList.IModel = WindowedList.IModel
+  > {
+    /**
+     * Windowed list model to display
+     */
+    model: T;
+    /**
+     * Windowed list layout
+     */
+    layout?: WindowedLayout;
+  }
+
+  /**
+   * Item list metadata
+   */
+  export type ItemMetadata = {
+    /**
+     * Item vertical offset in the container
+     */
+    offset: number;
+    /**
+     * Item height
+     */
+    size: number;
+    /**
+     * Whether the size is an estimation or a measurement.
+     */
+    measured?: boolean;
+  };
+
+  /**
+   * Type of scroll
+   */
+  export type ScrollToAlign = 'auto' | 'smart' | 'center' | 'start' | 'end';
+
+  /**
+   * Widget range in view port
+   */
+  export type WindowIndex = [number, number, number, number];
+}
diff --git a/packages/apputils/src/hoverbox.ts b/packages/ui-components/src/hoverbox.ts
similarity index 84%
rename from packages/apputils/src/hoverbox.ts
rename to packages/ui-components/src/hoverbox.ts
index 614fc1170945..fea36f56c8e0 100644
--- a/packages/apputils/src/hoverbox.ts
+++ b/packages/ui-components/src/hoverbox.ts
@@ -7,9 +7,9 @@
 const HOVERBOX_CLASS = 'jp-HoverBox';
 
 /**
- * The class name added to a hovering node that is scrolled out of view.
+ * The z-index used to hide hovering node that is scrolled out of view.
  */
-const OUTOFVIEW_CLASS = 'jp-mod-outofview';
+const OUTOFVIEW_Z_INDEX = '-1000';
 
 type OutOfViewDisplay =
   | 'hidden-inside'
@@ -33,7 +33,7 @@ export namespace HoverBox {
      * coordinate position, which can be retrieved via calling the
      * `getCoordinateForPosition` method.
      */
-    anchor: ClientRect;
+    anchor: DOMRect;
 
     /**
      * The node that hosts the anchor.
@@ -112,6 +112,15 @@ export namespace HoverBox {
       left?: OutOfViewDisplay;
       right?: OutOfViewDisplay;
     };
+
+    /**
+     * Exact size of the hover box. Pass it for faster rendering (allowing the
+     * positioning algorithm to to place it immediately at requested position).
+     */
+    size?: {
+      width: number;
+      height: number;
+    };
   }
 
   /**
@@ -122,11 +131,20 @@ export namespace HoverBox {
   export function setGeometry(options: IOptions): void {
     const { anchor, host, node, privilege, outOfViewDisplay } = options;
 
+    const hostRect = host.getBoundingClientRect();
+
     // Add hover box class if it does not exist.
-    node.classList.add(HOVERBOX_CLASS);
+    if (!node.classList.contains(HOVERBOX_CLASS)) {
+      node.classList.add(HOVERBOX_CLASS);
+    }
 
-    // Make sure the node is visible so that its dimensions can be queried.
-    node.classList.remove(OUTOFVIEW_CLASS);
+    // Start with the node displayed as if it was in view.
+    if (node.style.visibility) {
+      node.style.visibility = '';
+    }
+    if (node.style.zIndex === '') {
+      node.style.zIndex = '';
+    }
 
     // Clear any previously set max-height.
     node.style.maxHeight = '';
@@ -135,9 +153,9 @@ export namespace HoverBox {
     node.style.marginTop = '';
 
     const style = options.style || window.getComputedStyle(node);
-    const innerHeight = window.innerHeight;
-    const spaceAbove = anchor.top;
-    const spaceBelow = innerHeight - anchor.bottom;
+    const spaceAbove = anchor.top - hostRect.top;
+    const spaceBelow = hostRect.bottom - anchor.bottom;
+
     const marginTop = parseInt(style.marginTop!, 10) || 0;
     const marginLeft = parseInt(style.marginLeft!, 10) || 0;
     const minHeight = parseInt(style.minHeight!, 10) || options.minHeight;
@@ -169,11 +187,25 @@ export namespace HoverBox {
       (spaceBelow >= minHeight || spaceAbove >= minHeight);
 
     if (!withinBounds) {
-      node.classList.add(OUTOFVIEW_CLASS);
+      node.style.zIndex = OUTOFVIEW_Z_INDEX;
+      node.style.visibility = 'hidden';
       return;
     }
 
+    if (options.size) {
+      node.style.width = `${options.size.width}px`;
+      node.style.height = `${options.size.height}px`;
+      node.style.contain = 'strict';
+    } else {
+      node.style.contain = '';
+      node.style.width = 'auto';
+      node.style.height = '';
+    }
+
     // Position the box vertically.
+    const initialHeight = options.size
+      ? options.size.height
+      : node.getBoundingClientRect().height;
     const offsetAbove =
       (options.offset &&
         options.offset.vertical &&
@@ -185,8 +217,8 @@ export namespace HoverBox {
         options.offset.vertical.below) ||
       0;
     let top = renderBelow
-      ? innerHeight - spaceBelow + offsetBelow
-      : spaceAbove - node.getBoundingClientRect().height + offsetAbove;
+      ? hostRect.bottom - spaceBelow + offsetBelow
+      : hostRect.top + spaceAbove - initialHeight + offsetAbove;
     node.style.top = `${Math.floor(top)}px`;
 
     // Position the box horizontally.
@@ -194,20 +226,14 @@ export namespace HoverBox {
     let left = anchor.left + offsetHorizontal;
 
     node.style.left = `${Math.ceil(left)}px`;
-    node.style.width = 'auto';
 
-    // Expand the menu width by the scrollbar size, if present.
-    if (node.scrollHeight >= maxHeight) {
-      node.style.width = `${2 * node.offsetWidth - node.clientWidth}`;
-      node.scrollTop = 0;
-    }
+    let rect = node.getBoundingClientRect();
 
     // Move left to fit in the window.
-    const rect = node.getBoundingClientRect();
-    const hostRect = host.getBoundingClientRect(); // Query together to avoid extra layout recalculation
-    const right = rect.right;
+    let right = rect.right;
     if (right > window.innerWidth) {
       left -= right - window.innerWidth;
+      right = window.innerWidth;
       node.style.left = `${Math.ceil(left)}px`;
     }
 
@@ -218,7 +244,8 @@ export namespace HoverBox {
     }
 
     // Hide the hover box before querying the DOM for the anchor coordinates.
-    node.classList.add(OUTOFVIEW_CLASS);
+    // Using z-index set directly for performance.
+    node.style.zIndex = '-1000';
 
     const bottom = rect.bottom;
 
@@ -233,6 +260,8 @@ export namespace HoverBox {
       document.elementFromPoint(left, bottom)
     );
 
+    node.style.zIndex = '';
+
     const topEdgeInside = includesLeftTop || includesRightTop;
     const bottomEdgeInside = includesLeftBottom || includesRightBottom;
     const leftEdgeInside = includesLeftTop || includesLeftBottom;
@@ -358,8 +387,9 @@ export namespace HoverBox {
       }
     }
 
-    if (!hide) {
-      node.classList.remove(OUTOFVIEW_CLASS);
+    if (hide) {
+      node.style.zIndex = OUTOFVIEW_Z_INDEX;
+      node.style.visibility = 'hidden';
     }
 
     if (leftChanged) {
diff --git a/packages/ui-components/src/icon/iconimports.ts b/packages/ui-components/src/icon/iconimports.ts
index 44061b1f0991..984e1bbe3e98 100644
--- a/packages/ui-components/src/icon/iconimports.ts
+++ b/packages/ui-components/src/icon/iconimports.ts
@@ -28,7 +28,9 @@ import circleEmptySvgstr from '../../style/icons/toolbar/circle-empty.svg';
 import circleSvgstr from '../../style/icons/toolbar/circle.svg';
 import clearSvgstr from '../../style/icons/toolbar/clear.svg';
 import closeSvgstr from '../../style/icons/toolbar/close.svg';
+import codeCheckSvgstr from '../../style/icons/lsp/code-check.svg';
 import codeSvgstr from '../../style/icons/toolbar/code.svg';
+import collapseAllSvgstr from '../../style/icons/toolbar/collapse-all.svg';
 import consoleSvgstr from '../../style/icons/filetype/console.svg';
 import copySvgstr from '../../style/icons/toolbar/copy.svg';
 import copyrightSvgstr from '../../style/icons/licenses/copyright.svg';
@@ -38,16 +40,21 @@ import downloadSvgstr from '../../style/icons/toolbar/download.svg';
 import duplicateSvgstr from '../../style/icons/toolbar/duplicate.svg';
 import editSvgstr from '../../style/icons/toolbar/edit.svg';
 import ellipsesSvgstr from '../../style/icons/toolbar/ellipses.svg';
+import errorSvgstr from '../../style/icons/error.svg';
+import expandAllSvgstr from '../../style/icons/toolbar/expand-all.svg';
 import extensionSvgstr from '../../style/icons/sidebar/extension.svg';
 import fastForwardSvgstr from '../../style/icons/toolbar/fast-forward.svg';
 import fileSvgstr from '../../style/icons/filetype/file.svg';
 import fileUploadSvgstr from '../../style/icons/toolbar/file-upload.svg';
+import filterDotSvgstr from '../../style/icons/search/filter-dot.svg';
 import filterListSvgstr from '../../style/icons/toolbar/filter-list.svg';
+import filterSvgstr from '../../style/icons/search/filter.svg';
 import folderFavoriteSvgstr from '../../style/icons/filetype/folder-favorite.svg';
 import folderSvgstr from '../../style/icons/filetype/folder.svg';
 import homeSvgstr from '../../style/icons/filetype/home.svg';
 import html5Svgstr from '../../style/icons/filetype/html5.svg';
 import imageSvgstr from '../../style/icons/filetype/image.svg';
+import infoSvgstr from '../../style/icons/info.svg';
 import inspectorSvgstr from '../../style/icons/filetype/inspector.svg';
 import jsonSvgstr from '../../style/icons/filetype/json.svg';
 import juliaSvgstr from '../../style/icons/filetype/julia.svg';
@@ -61,7 +68,6 @@ import launcherSvgstr from '../../style/icons/filetype/launcher.svg';
 import lineFormSvgstr from '../../style/icons/statusbar/line-form.svg';
 import linkSvgstr from '../../style/icons/toolbar/link.svg';
 import listSvgstr from '../../style/icons/statusbar/list.svg';
-import listingsInfoSvgstr from '../../style/icons/listings/listings-info.svg';
 import markdownSvgstr from '../../style/icons/filetype/markdown.svg';
 import moveDownSvgstr from '../../style/icons/toolbar/move-down.svg';
 import moveUpSvgstr from '../../style/icons/toolbar/move-up.svg';
@@ -99,6 +105,7 @@ import undoSvgstr from '../../style/icons/toolbar/undo.svg';
 import userSvgstr from '../../style/icons/sidebar/user.svg';
 import usersSvgstr from '../../style/icons/sidebar/users.svg';
 import vegaSvgstr from '../../style/icons/filetype/vega.svg';
+import wordSvgstr from '../../style/icons/search/word.svg';
 import yamlSvgstr from '../../style/icons/filetype/yaml.svg';
 
 // LabIcon instance construction
@@ -122,7 +129,9 @@ export const circleEmptyIcon = new LabIcon({ name: 'ui-components:circle-empty',
 export const circleIcon = new LabIcon({ name: 'ui-components:circle', svgstr: circleSvgstr });
 export const clearIcon = new LabIcon({ name: 'ui-components:clear', svgstr: clearSvgstr });
 export const closeIcon = new LabIcon({ name: 'ui-components:close', svgstr: closeSvgstr });
+export const codeCheckIcon = new LabIcon({ name: 'ui-components:code-check', svgstr: codeCheckSvgstr });
 export const codeIcon = new LabIcon({ name: 'ui-components:code', svgstr: codeSvgstr });
+export const collapseAllIcon = new LabIcon({ name: 'ui-components:collapse-all', svgstr: collapseAllSvgstr });
 export const consoleIcon = new LabIcon({ name: 'ui-components:console', svgstr: consoleSvgstr });
 export const copyIcon = new LabIcon({ name: 'ui-components:copy', svgstr: copySvgstr });
 export const copyrightIcon = new LabIcon({ name: 'ui-components:copyright', svgstr: copyrightSvgstr });
@@ -132,16 +141,21 @@ export const downloadIcon = new LabIcon({ name: 'ui-components:download', svgstr
 export const duplicateIcon = new LabIcon({ name: 'ui-components:duplicate', svgstr: duplicateSvgstr });
 export const editIcon = new LabIcon({ name: 'ui-components:edit', svgstr: editSvgstr });
 export const ellipsesIcon = new LabIcon({ name: 'ui-components:ellipses', svgstr: ellipsesSvgstr });
+export const errorIcon = new LabIcon({ name: 'ui-components:error', svgstr: errorSvgstr });
+export const expandAllIcon = new LabIcon({ name: 'ui-components:expand-all', svgstr: expandAllSvgstr });
 export const extensionIcon = new LabIcon({ name: 'ui-components:extension', svgstr: extensionSvgstr });
 export const fastForwardIcon = new LabIcon({ name: 'ui-components:fast-forward', svgstr: fastForwardSvgstr });
 export const fileIcon = new LabIcon({ name: 'ui-components:file', svgstr: fileSvgstr });
 export const fileUploadIcon = new LabIcon({ name: 'ui-components:file-upload', svgstr: fileUploadSvgstr });
+export const filterDotIcon = new LabIcon({ name: 'ui-components:filter-dot', svgstr: filterDotSvgstr });
+export const filterIcon = new LabIcon({ name: 'ui-components:filter', svgstr: filterSvgstr });
 export const filterListIcon = new LabIcon({ name: 'ui-components:filter-list', svgstr: filterListSvgstr });
 export const folderFavoriteIcon = new LabIcon({ name: 'ui-components:folder-favorite', svgstr: folderFavoriteSvgstr });
 export const folderIcon = new LabIcon({ name: 'ui-components:folder', svgstr: folderSvgstr });
 export const homeIcon = new LabIcon({ name: 'ui-components:home', svgstr: homeSvgstr });
 export const html5Icon = new LabIcon({ name: 'ui-components:html5', svgstr: html5Svgstr });
 export const imageIcon = new LabIcon({ name: 'ui-components:image', svgstr: imageSvgstr });
+export const infoIcon = new LabIcon({ name: 'ui-components:info', svgstr: infoSvgstr });
 export const inspectorIcon = new LabIcon({ name: 'ui-components:inspector', svgstr: inspectorSvgstr });
 export const jsonIcon = new LabIcon({ name: 'ui-components:json', svgstr: jsonSvgstr });
 export const juliaIcon = new LabIcon({ name: 'ui-components:julia', svgstr: juliaSvgstr });
@@ -155,7 +169,6 @@ export const launcherIcon = new LabIcon({ name: 'ui-components:launcher', svgstr
 export const lineFormIcon = new LabIcon({ name: 'ui-components:line-form', svgstr: lineFormSvgstr });
 export const linkIcon = new LabIcon({ name: 'ui-components:link', svgstr: linkSvgstr });
 export const listIcon = new LabIcon({ name: 'ui-components:list', svgstr: listSvgstr });
-export const listingsInfoIcon = new LabIcon({ name: 'ui-components:listings-info', svgstr: listingsInfoSvgstr });
 export const markdownIcon = new LabIcon({ name: 'ui-components:markdown', svgstr: markdownSvgstr });
 export const moveDownIcon = new LabIcon({ name: 'ui-components:move-down', svgstr: moveDownSvgstr });
 export const moveUpIcon = new LabIcon({ name: 'ui-components:move-up', svgstr: moveUpSvgstr });
@@ -193,4 +206,5 @@ export const undoIcon = new LabIcon({ name: 'ui-components:undo', svgstr: undoSv
 export const userIcon = new LabIcon({ name: 'ui-components:user', svgstr: userSvgstr });
 export const usersIcon = new LabIcon({ name: 'ui-components:users', svgstr: usersSvgstr });
 export const vegaIcon = new LabIcon({ name: 'ui-components:vega', svgstr: vegaSvgstr });
+export const wordIcon = new LabIcon({ name: 'ui-components:word', svgstr: wordSvgstr });
 export const yamlIcon = new LabIcon({ name: 'ui-components:yaml', svgstr: yamlSvgstr });
diff --git a/packages/ui-components/src/icon/labicon.tsx b/packages/ui-components/src/icon/labicon.tsx
index e1460c2b3097..624ceb75a131 100644
--- a/packages/ui-components/src/icon/labicon.tsx
+++ b/packages/ui-components/src/icon/labicon.tsx
@@ -1,11 +1,12 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 import { UUID } from '@lumino/coreutils';
 import { Signal } from '@lumino/signaling';
 import { ElementAttrs, VirtualElement, VirtualNode } from '@lumino/virtualdom';
 import React from 'react';
-import ReactDOM from 'react-dom';
+import { createRoot, Root } from 'react-dom/client';
 import badSvgstr from '../../style/debug/bad.svg';
 import blankSvgstr from '../../style/debug/blank.svg';
 import refreshSvgstr from '../../style/icons/toolbar/refresh.svg';
@@ -25,7 +26,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
    *
    * @returns the cleaned container
    */
-  static remove(container: HTMLElement) {
+  static remove(container: HTMLElement): HTMLElement {
     // clean up all children
     while (container.firstChild) {
       container.firstChild.remove();
@@ -38,11 +39,11 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
   }
 
   /**
-   * Resolve an icon name or a {name, svgstr} pair into an
+   * Resolve an icon name or a \{name, svgstr\} pair into an
    * actual LabIcon.
    *
    * @param icon - either a string with the name of an existing icon
-   * or an object with {name: string, svgstr: string} fields.
+   * or an object with \{name: string, svgstr: string\} fields.
    *
    * @returns a LabIcon instance
    */
@@ -72,20 +73,20 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
       return new LabIcon({ name: icon, svgstr: refreshSvgstr, _loading: true });
     }
 
-    // icon was provided as a non-LabIcon {name, svgstr} pair, communicating
+    // icon was provided as a non-LabIcon \{name, svgstr\} pair, communicating
     // an intention to create a new icon
     return new LabIcon(icon);
   }
 
   /**
-   * Resolve an icon name or a {name, svgstr} pair into a DOM element.
+   * Resolve an icon name or a \{name, svgstr\} pair into a DOM element.
    * If icon arg is undefined, the function will fall back to trying to render
    * the icon as a CSS background image, via the iconClass arg.
    * If both icon and iconClass are undefined, this function will return
    * an empty div.
    *
    * @param icon - optional, either a string with the name of an existing icon
-   * or an object with {name: string, svgstr: string} fields
+   * or an object with \{name: string, svgstr: string\} fields
    *
    * @param iconClass - optional, if the icon arg is not set, the iconClass arg
    * should be a CSS class associated with an existing CSS background-image
@@ -103,7 +104,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
     iconClass,
     fallback,
     ...props
-  }: Partial<LabIcon.IResolverProps> & LabIcon.IProps) {
+  }: Partial<LabIcon.IResolverProps> & LabIcon.IProps): HTMLElement {
     if (!Private.isResolvable(icon)) {
       if (!iconClass && fallback) {
         // if neither icon nor iconClass are defined/resolvable, use fallback
@@ -120,14 +121,14 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
   }
 
   /**
-   * Resolve an icon name or a {name, svgstr} pair into a React component.
+   * Resolve an icon name or a \{name, svgstr\} pair into a React component.
    * If icon arg is undefined, the function will fall back to trying to render
    * the icon as a CSS background image, via the iconClass arg.
    * If both icon and iconClass are undefined, the returned component
    * will simply render an empty div.
    *
    * @param icon - optional, either a string with the name of an existing icon
-   * or an object with {name: string, svgstr: string} fields
+   * or an object with \{name: string, svgstr: string\} fields
    *
    * @param iconClass - optional, if the icon arg is not set, the iconClass arg
    * should be a CSS class associated with an existing CSS background-image
@@ -145,7 +146,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
     iconClass,
     fallback,
     ...props
-  }: Partial<LabIcon.IResolverProps> & LabIcon.IReactProps) {
+  }: Partial<LabIcon.IResolverProps> & LabIcon.IReactProps): JSX.Element {
     if (!Private.isResolvable(icon)) {
       if (!iconClass && fallback) {
         // if neither icon nor iconClass are defined/resolvable, use fallback
@@ -163,7 +164,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
   }
 
   /**
-   * Resolve a {name, svgstr} pair into an actual svg node.
+   * Resolve a \{name, svgstr\} pair into an actual svg node.
    */
   static resolveSvg({ name, svgstr }: LabIcon.IIcon): HTMLElement | null {
     const svgDoc = new DOMParser().parseFromString(
@@ -197,7 +198,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
    *
    * @param debug - optional boolean to force debug on or off
    */
-  static toggleDebug(debug?: boolean) {
+  static toggleDebug(debug?: boolean): void {
     LabIcon._debug = debug ?? !LabIcon._debug;
   }
 
@@ -265,7 +266,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
    *
    * @returns a view of this LabIcon instance
    */
-  bindprops(props?: LabIcon.IProps) {
+  bindprops(props?: LabIcon.IProps): LabIcon {
     const view = Object.create(this);
     view._props = props;
     view.react = view._initReact(view.name + '_bind');
@@ -405,7 +406,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
     return this._svgReactAttrs;
   }
 
-  get svgstr() {
+  get svgstr(): string {
     return this._svgstr;
   }
 
@@ -495,10 +496,12 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
         } else {
           return (
             <Tag
-              className={classes(
-                className,
-                LabIconStyle.styleClass(styleProps)
-              )}
+              className={
+                className || styleProps
+                  ? classes(className, LabIconStyle.styleClass(styleProps))
+                  : undefined
+              }
+              title={title}
             >
               {svgComponent}
               {label}
@@ -515,7 +518,7 @@ export class LabIcon implements LabIcon.ILabIcon, VirtualElement.IRenderer {
   protected _initRender({
     render,
     unrender
-  }: Partial<VirtualElement.IRenderer>) {
+  }: Partial<VirtualElement.IRenderer>): void {
     if (render) {
       this.render = render;
       if (unrender) {
@@ -622,20 +625,7 @@ export namespace LabIcon {
   /**
    * The simplest possible interface for defining a generic icon.
    */
-  export interface IIcon {
-    /**
-     * The name of the icon. By convention, the icon name will be namespaced
-     * as so:
-     *
-     *     "pkg-name:icon-name"
-     */
-    readonly name: string;
-
-    /**
-     * A string containing the raw contents of an svg file.
-     */
-    svgstr: string;
-  }
+  export interface IIcon extends IRenderMime.LabIcon.IIcon {}
 
   export interface IRendererOptions {
     attrs?: ElementAttrs;
@@ -702,9 +692,7 @@ export namespace LabIcon {
   /**
    * A type that can be resolved to a LabIcon instance.
    */
-  export type IResolvable =
-    | string
-    | (IIcon & Partial<VirtualElement.IRenderer>);
+  export type IResolvable = IRenderMime.LabIcon.IResolvable;
 
   /**
    * A type that maybe can be resolved to a LabIcon instance.
@@ -930,19 +918,29 @@ namespace Private {
         label = undefined;
       }
 
-      ReactDOM.render(
-        <this._icon.react
+      const icon = this._icon;
+
+      if (this._rootDOM !== null) {
+        this._rootDOM.unmount();
+      }
+      this._rootDOM = createRoot(container);
+      this._rootDOM.render(
+        <icon.react
           container={container}
           label={label}
           {...{ ...this._rendererOptions?.props, ...options?.props }}
-        />,
-        container
+        />
       );
     }
 
     unrender(container: HTMLElement): void {
-      ReactDOM.unmountComponentAtNode(container);
+      if (this._rootDOM !== null) {
+        this._rootDOM.unmount();
+        this._rootDOM = null;
+      }
     }
+
+    private _rootDOM: Root | null = null;
   }
 }
 
diff --git a/packages/ui-components/src/icon/widgets/commandpalettesvg.ts b/packages/ui-components/src/icon/widgets/commandpalettesvg.ts
index 7248377f3f9c..f7db443f52c0 100644
--- a/packages/ui-components/src/icon/widgets/commandpalettesvg.ts
+++ b/packages/ui-components/src/icon/widgets/commandpalettesvg.ts
@@ -28,13 +28,7 @@ export namespace CommandPaletteSvg {
       const content = this.formatHeader(data);
       return h.li(
         {
-          className: classes(
-            'lm-CommandPalette-header',
-            'jp-icon-hoverShow',
-            /* <DEPRECATED> */
-            'p-CommandPalette-header'
-            /* </DEPRECATED> */
-          )
+          className: classes('lm-CommandPalette-header', 'jp-icon-hoverShow')
         },
         content,
         h.span(searchHeaderIcon)
@@ -56,12 +50,6 @@ export namespace CommandPaletteSvg {
         return h.div({ className }, checkIcon, data.item.iconLabel);
       }
 
-      /* <DEPRECATED> */
-      if (typeof data.item.icon === 'string') {
-        return h.div({ className }, data.item.iconLabel);
-      }
-      /* </DEPRECATED> */
-
       // if data.item.icon is undefined, it will be ignored
       return h.div({ className }, data.item.icon!, data.item.iconLabel);
     }
@@ -75,9 +63,6 @@ export namespace CommandPaletteSvg {
      */
     createIconClass(data: CommandPalette.IItemRenderData): string {
       let name = 'lm-CommandPalette-itemIcon';
-      /* <DEPRECATED> */
-      name += ' p-CommandPalette-itemIcon';
-      /* </DEPRECATED> */
 
       return classes(
         LabIconStyle.styleClass({
diff --git a/packages/ui-components/src/icon/widgets/menusvg.ts b/packages/ui-components/src/icon/widgets/menusvg.ts
index 4c5ec6b5a246..7fe7cc89d5a5 100644
--- a/packages/ui-components/src/icon/widgets/menusvg.ts
+++ b/packages/ui-components/src/icon/widgets/menusvg.ts
@@ -171,15 +171,6 @@ export namespace MenuSvg {
         return h.div({ className }, checkIcon, data.item.iconLabel);
       }
 
-      /* <DEPRECATED> */
-      if (typeof data.item.icon === 'string') {
-        return h.div(
-          { className: classes(className, 'jp-Icon') },
-          data.item.iconLabel
-        );
-      }
-      /* </DEPRECATED> */
-
       // if data.item.icon is undefined, it will be ignored
       return h.div({ className }, data.item.icon!, data.item.iconLabel);
     }
@@ -193,9 +184,6 @@ export namespace MenuSvg {
      */
     createIconClass(data: Menu.IRenderData): string {
       let name = 'lm-Menu-itemIcon';
-      /* <DEPRECATED> */
-      name += ' p-Menu-itemIcon';
-      /* </DEPRECATED> */
 
       if (data.item.type === 'separator') {
         return classes(data.item.iconClass, name);
@@ -216,11 +204,7 @@ export namespace MenuSvg {
      * @returns A virtual element representing the submenu icon.
      */
     renderSubmenu(data: Menu.IRenderData): VirtualElement {
-      const className =
-        'lm-Menu-itemSubmenuIcon' +
-        /* <DEPRECATED> */
-        ' p-Menu-itemSubmenuIcon';
-      /* </DEPRECATED> */
+      const className = 'lm-Menu-itemSubmenuIcon';
 
       if (data.item.type === 'submenu') {
         return h.div({ className }, submenuIcon);
diff --git a/packages/ui-components/src/icon/widgets/tabbarsvg.ts b/packages/ui-components/src/icon/widgets/tabbarsvg.ts
index fbcae09f579d..203488212b3f 100644
--- a/packages/ui-components/src/icon/widgets/tabbarsvg.ts
+++ b/packages/ui-components/src/icon/widgets/tabbarsvg.ts
@@ -1,29 +1,31 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
+import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 import { hpass, VirtualElement } from '@lumino/virtualdom';
 import { DockPanel, TabBar, TabPanel, Widget } from '@lumino/widgets';
 import { LabIconStyle } from '../../style';
 import { classes } from '../../utils';
 import { addIcon, closeIcon } from '../iconimports';
-import { ITranslator, nullTranslator } from '@jupyterlab/translation';
 
 /**
  * a widget which displays titles as a single row or column of tabs.
  * Tweaked to use an inline svg as the close icon
  */
 export class TabBarSvg<T> extends TabBar<T> {
+  /**
+   * Translator object
+   */
+  static translator: ITranslator | null = null;
+
   /**
    * Construct a new tab bar. Overrides the default renderer.
    *
    * @param options - The options for initializing the tab bar.
    */
-  constructor(options: TabBarSvg.IOptions<T> = {}) {
-    options.renderer = options.renderer || TabBarSvg.defaultRenderer;
-    super(options);
-    const trans = ((options && options.translator) || nullTranslator).load(
-      'jupyterlab'
-    );
+  constructor(options: TabBar.IOptions<T> = {}) {
+    super({ renderer: TabBarSvg.defaultRenderer, ...options });
+    const trans = (TabBarSvg.translator ?? nullTranslator).load('jupyterlab');
     addIcon.element({
       container: this.addButtonNode,
       title: trans.__('New Launcher')
@@ -44,6 +46,10 @@ export namespace TabBarSvg {
      * @returns A virtual element representing the tab close icon.
      */
     renderCloseIcon(data: TabBar.IRenderData<any>): VirtualElement {
+      const trans = (TabBarSvg.translator ?? nullTranslator).load('jupyterlab');
+      const title = data.title.label
+        ? trans.__('Close %1', data.title.label)
+        : trans.__('Close tab');
       const className = classes(
         'jp-icon-hover lm-TabBar-tabCloseIcon',
         LabIconStyle.styleClass({
@@ -53,22 +59,15 @@ export namespace TabBarSvg {
         })
       );
 
-      return (hpass(
+      return hpass(
         'div',
-        { className },
+        { className, title },
         closeIcon
-      ) as unknown) as VirtualElement;
+      ) as unknown as VirtualElement;
     }
   }
 
   export const defaultRenderer = new Renderer();
-
-  export interface IOptions<T> extends TabBar.IOptions<T> {
-    /**
-     * The application language translator.
-     */
-    translator?: ITranslator;
-  }
 }
 
 /**
@@ -81,9 +80,11 @@ export class DockPanelSvg extends DockPanel {
    *
    * @param options - The options for initializing the panel.
    */
-  constructor(options: DockPanelSvg.IOptions = {}) {
-    options.renderer = options.renderer || DockPanelSvg.defaultRenderer;
-    super(options);
+  constructor(options: DockPanel.IOptions = {}) {
+    super({
+      renderer: DockPanelSvg.defaultRenderer,
+      ...options
+    });
   }
 }
 
@@ -106,13 +107,6 @@ export namespace DockPanelSvg {
   }
 
   export const defaultRenderer = new Renderer();
-
-  export interface IOptions extends DockPanel.IOptions {
-    /**
-     * The application language translator.
-     */
-    translator?: ITranslator;
-  }
 }
 
 /**
diff --git a/packages/ui-components/src/index.ts b/packages/ui-components/src/index.ts
index 3cb0b588cd6f..0c740702872a 100644
--- a/packages/ui-components/src/index.ts
+++ b/packages/ui-components/src/index.ts
@@ -5,9 +5,9 @@
  * @module ui-components
  */
 
-export * from './blueprint';
 export * from './components';
 export * from './icon';
+export * from './hoverbox';
 export * from './tokens';
 export * from './utils';
-export * from './FormComponentRegistry';
+export * from './FormRendererRegistry';
diff --git a/packages/ui-components/src/style/icon.ts b/packages/ui-components/src/style/icon.ts
index 83b0f1d21b38..8d53e04858f2 100644
--- a/packages/ui-components/src/style/icon.ts
+++ b/packages/ui-components/src/style/icon.ts
@@ -139,16 +139,6 @@ export namespace LabIconStyle {
      * the array, giving precedence to the rightmost values.
      */
     stylesheet?: ISheetResolvable | ISheetResolvable[];
-
-    /**
-     * @deprecated use stylesheet instead
-     */
-    kind?: IBuiltin;
-
-    /**
-     * @deprecated use elementPosition instead
-     */
-    justify?: 'center' | 'right' | 'left';
   }
 
   /**
@@ -274,10 +264,6 @@ export namespace LabIconStyle {
         $nest: {
           '.lm-DockPanel-tabBar &': {
             marginRight: '4px'
-          },
-          '#tab-manager &': {
-            marginRight: '2px',
-            position: 'relative'
           }
         }
       },
@@ -286,10 +272,6 @@ export namespace LabIconStyle {
           '.lm-DockPanel-tabBar &': {
             height: '14px',
             width: '14px'
-          },
-          '#tab-manager &': {
-            height: '16px',
-            width: '16px'
           }
         }
       },
@@ -355,38 +337,6 @@ export namespace LabIconStyle {
     },
 
     sideBar: {
-      container: {
-        // `&` will be substituted for the generated classname (interpolation)
-        $nest: {
-          // left sidebar tab divs
-          '.jp-SideBar.jp-mod-left .lm-TabBar-tab &': {
-            transform: 'rotate(90deg)'
-          },
-          // left sidebar currently selected tab div
-          '.jp-SideBar.jp-mod-left .lm-TabBar-tab.lm-mod-current &': {
-            transform:
-              'rotate(90deg)\n' +
-              '    translate(\n' +
-              '      calc(-0.5 * var(--jp-border-width)),\n' +
-              '      calc(-0.5 * var(--jp-border-width))\n' +
-              '    )'
-          },
-
-          // right sidebar tab divs
-          '.jp-SideBar.jp-mod-right .lm-TabBar-tab &': {
-            transform: 'rotate(-90deg)'
-          },
-          // right sidebar currently selected tab div
-          '.jp-SideBar.jp-mod-right .lm-TabBar-tab.lm-mod-current &': {
-            transform:
-              'rotate(-90deg)\n' +
-              '    translate(\n' +
-              '      calc(0.5 * var(--jp-border-width)),\n' +
-              '      calc(-0.5 * var(--jp-border-width))\n' +
-              '    )'
-          }
-        }
-      },
       element: {
         height: 'auto',
         width: '20px'
@@ -561,24 +511,7 @@ export namespace LabIconStyle {
       return '';
     }
 
-    let {
-      elementPosition,
-      elementSize,
-      stylesheet,
-      kind,
-      justify,
-      ...elementCSS
-    } = props;
-
-    // DEPRECATED: alias kind => stylesheet
-    if (!stylesheet) {
-      stylesheet = kind;
-    }
-
-    // DEPRECATED: alias justify => elementPosition
-    if (!elementPosition) {
-      elementPosition = justify;
-    }
+    let { elementPosition, elementSize, stylesheet, ...elementCSS } = props;
 
     // add option args with defined values to overrides
     const options = {
diff --git a/packages/ui-components/src/tokens.ts b/packages/ui-components/src/tokens.ts
index abaa4bf35d91..76eb21c68db4 100644
--- a/packages/ui-components/src/tokens.ts
+++ b/packages/ui-components/src/tokens.ts
@@ -2,6 +2,58 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { Token } from '@lumino/coreutils';
+import type { Field, Widget } from '@rjsf/utils';
+
+/**
+ * Form renderer interface.
+ */
+export interface IFormRenderer {
+  /**
+   * A React component with properties FieldProps.
+   */
+  fieldRenderer?: Field;
+
+  /**
+   * A React component with properties WidgetProps.
+   */
+  widgetRenderer?: Widget;
+}
+
+/**
+ * A registry for rendering fields used in the FormEditor component.
+ */
+export interface IFormRendererRegistry {
+  /**
+   * Adds a renderer for a given property of a given settings plugin.
+   *
+   * The id must follow that structure `<ISettingRegistry.IPlugin.id>.<propertyName>`
+   *
+   * @param id - Unique ID for the given renderer.
+   * @param renderer - A renderer interfacing IFormRenderer.
+   */
+  addRenderer: (id: string, renderer: IFormRenderer) => void;
+
+  /**
+   * Returns the component for the given id
+   * @param id - The unique id for the component.
+   * @returns - A component interfacing IFormComponent.
+   */
+  getRenderer: (id: string) => IFormRenderer;
+
+  /**
+   * Returns all registered renderers in dictionary form.
+   * @returns - A dictionary that maps an id to a renderer.
+   */
+  renderers: { [id: string]: IFormRenderer };
+}
+
+/**
+ * The token for the form component registry.
+ */
+export const IFormRendererRegistry = new Token<IFormRendererRegistry>(
+  '@jupyterlab/ui-components:IFormRendererRegistry',
+  'A service for settings form renderer registration.'
+);
 
 /**
  * Placeholder for future icon manager class to assist with
@@ -13,5 +65,6 @@ export interface ILabIconManager {}
  * The ILabIconManager token.
  */
 export const ILabIconManager = new Token<ILabIconManager>(
-  '@jupyterlab/ui-components:ILabIconManager'
+  '@jupyterlab/ui-components:ILabIconManager',
+  'A service to register and request icons.'
 );
diff --git a/packages/ui-components/src/utils.ts b/packages/ui-components/src/utils.ts
index 1e688032a792..564d476866d3 100644
--- a/packages/ui-components/src/utils.ts
+++ b/packages/ui-components/src/utils.ts
@@ -74,15 +74,17 @@ export function classesDedupe(
 export function getReactAttrs(
   elem: Element,
   { ignore = [] }: { ignore?: string[] } = {}
-) {
-  return elem.getAttributeNames().reduce((d, name) => {
-    if (name === 'style' || ignore.includes(name)) {
-      void 0;
-    } else if (name.startsWith('data')) {
-      d[name] = elem.getAttribute(name);
-    } else {
-      d[Text.camelCase(name)] = elem.getAttribute(name);
-    }
-    return d;
-  }, {} as any);
+): { [key: string]: string | null } {
+  return elem
+    .getAttributeNames()
+    .reduce<{ [key: string]: string | null }>((d, name) => {
+      if (name === 'style' || ignore.includes(name)) {
+        void 0;
+      } else if (name.startsWith('data')) {
+        d[name] = elem.getAttribute(name);
+      } else {
+        d[Text.camelCase(name)] = elem.getAttribute(name);
+      }
+      return d;
+    }, {});
 }
diff --git a/packages/ui-components/stories/button.stories.tsx b/packages/ui-components/stories/button.stories.tsx
deleted file mode 100644
index 05fc8d42104f..000000000000
--- a/packages/ui-components/stories/button.stories.tsx
+++ /dev/null
@@ -1,25 +0,0 @@
-/**
- * Example story for styling a button.
- */
-import '@jupyterlab/application/style/index.css';
-import '@jupyterlab/theme-light-extension/style/index.css';
-import { action } from '@storybook/addon-actions';
-import React from 'react';
-import { Button } from '../src';
-
-export default {
-  // component: Button,
-  title: 'Button'
-};
-
-export const text = () => (
-  <Button onClick={action('clicked')}>Hello Button</Button>
-);
-
-export const emoji = () => (
-  <Button onClick={action('clicked')}>
-    <span role="img" aria-label="so cool">
-      😀 😎 👍 💯
-    </span>
-  </Button>
-);
diff --git a/packages/ui-components/stories/labicon-sizes.stories.tsx b/packages/ui-components/stories/labicon-sizes.stories.tsx
deleted file mode 100644
index f7bba43bdbd1..000000000000
--- a/packages/ui-components/stories/labicon-sizes.stories.tsx
+++ /dev/null
@@ -1,19 +0,0 @@
-/**
- * Example story for styling an icon's size.
- */
-// need this to avoid
-// TS2686: 'React' refers to a UMD global, but the current file is a module.
-import '@jupyterlab/application/style/index.css';
-import '@jupyterlab/theme-light-extension/style/index.css';
-import React from 'react';
-import { clearIcon } from '../src';
-
-export default {
-  // component: LabIcon,
-  title: 'LabIcon sizing'
-};
-
-export const clearSmall = () => <clearIcon.react elementSize="small" />;
-export const clearNormal = () => <clearIcon.react elementSize="normal" />;
-export const clearLarge = () => <clearIcon.react elementSize="large" />;
-export const clearXlarge = () => <clearIcon.react elementSize="xlarge" />;
diff --git a/packages/ui-components/stories/labicon.stories.tsx b/packages/ui-components/stories/labicon.stories.tsx
deleted file mode 100644
index 534cad4b1d3d..000000000000
--- a/packages/ui-components/stories/labicon.stories.tsx
+++ /dev/null
@@ -1,24 +0,0 @@
-/**
- * Example story for styling an icon.
- */
-// need this to avoid
-// TS2686: 'React' refers to a UMD global, but the current file is a module.
-import '@jupyterlab/application/style/index.css';
-import '@jupyterlab/theme-light-extension/style/index.css';
-import React from 'react';
-import { buildIcon, html5Icon, runningIcon } from '../src';
-
-export default {
-  // component: LabIcon,
-  title: 'LabIcon'
-};
-
-export const build = () => <buildIcon.react stylesheet="sideBar" />;
-
-export const running = () => <runningIcon.react height="800px" width="800px" />;
-
-export const html5 = () => (
-  <div className="foobar" style={{ height: '500px', width: '500px' }}>
-    <html5Icon.react elementPosition="center" />
-  </div>
-);
diff --git a/packages/ui-components/style/base.css b/packages/ui-components/style/base.css
index eca308a5f227..18d5699b8aba 100644
--- a/packages/ui-components/style/base.css
+++ b/packages/ui-components/style/base.css
@@ -4,110 +4,149 @@
 |----------------------------------------------------------------------------*/
 
 /* Sibling imports */
+@import './collapse.css';
 @import './deprecated.css';
 @import './deprecatedExtra.css';
 @import './tabbar.css';
 @import './icons.css';
 @import './iconsalt.css';
 @import './iconshover.css';
+@import './iframe.css';
+@import './hoverbox.css';
+@import './rjsfTemplates.css';
+@import './sidepanel.css';
+@import './spinner.css';
+@import './styling.css';
 @import './switch.css';
-
-/* Override Blueprint's _reset.scss styles */
-html {
-  box-sizing: unset;
-}
-
-*,
-*::before,
-*::after {
-  box-sizing: unset;
-}
+@import './toolbar.css';
+@import './windowedlist.css';
 
 body {
-  color: unset;
-  font-family: var(--jp-ui-font-family);
-}
-
-p {
-  margin-top: unset;
-  margin-bottom: unset;
-}
-
-small {
-  font-size: unset;
-}
-
-strong {
-  font-weight: unset;
+  color: var(--jp-ui-font-color1);
+  font-size: var(--jp-ui-font-size1);
 }
 
-/* Override Blueprint's _typography.scss styles */
+/* Disable native link decoration styles everywhere outside of dialog boxes */
 a {
   text-decoration: unset;
   color: unset;
 }
+
 a:hover {
   text-decoration: unset;
   color: unset;
 }
 
-/* Override Blueprint's _accessibility.scss styles */
-:focus {
-  outline: unset;
-  outline-offset: unset;
-  -moz-outline-radius: unset;
+/* Accessibility for links inside dialog box text */
+.jp-Dialog-content a {
+  text-decoration: revert;
+  color: var(--jp-content-link-color);
+}
+
+.jp-Dialog-content a:hover {
+  text-decoration: revert;
 }
 
 /* Styles for ui-components */
 .jp-Button {
+  color: var(--jp-ui-font-color2);
   border-radius: var(--jp-border-radius);
-  padding: 0px 12px;
+  padding: 0 12px;
   font-size: var(--jp-ui-font-size1);
+
+  /* Copy from blueprint 3 */
+  display: inline-flex;
+  flex-direction: row;
+  border: none;
+  cursor: pointer;
+  align-items: center;
+  justify-content: center;
+  text-align: left;
+  vertical-align: middle;
+  min-height: 30px;
+  min-width: 30px;
+}
+
+.jp-Button:disabled {
+  cursor: not-allowed;
+}
+
+.jp-Button:empty {
+  padding: 0 !important;
+}
+
+.jp-Button.jp-mod-small {
+  min-height: 24px;
+  min-width: 24px;
+  font-size: 12px;
+  padding: 0 7px;
 }
 
 /* Use our own theme for hover styles */
-button.jp-Button.bp3-button.bp3-minimal:hover {
+.jp-Button.jp-mod-minimal:hover {
   background-color: var(--jp-layout-color2);
 }
-.jp-Button.minimal {
-  color: unset !important;
+
+.jp-Button.jp-mod-minimal {
+  background: none;
 }
 
-.jp-Button.jp-ToolbarButtonComponent {
-  text-transform: none;
+.jp-InputGroup {
+  display: block;
+  position: relative;
 }
 
 .jp-InputGroup input {
   box-sizing: border-box;
+  border: none;
   border-radius: 0;
   background-color: transparent;
   color: var(--jp-ui-font-color0);
   box-shadow: inset 0 0 0 var(--jp-border-width) var(--jp-input-border-color);
+  padding-bottom: 0;
+  padding-top: 0;
+  padding-left: 10px;
+  padding-right: 28px;
+  position: relative;
+  width: 100%;
+  -webkit-appearance: none;
+  -moz-appearance: none;
+  appearance: none;
+  font-size: 14px;
+  font-weight: 400;
+  height: 30px;
+  line-height: 30px;
+  outline: none;
+  vertical-align: middle;
 }
 
 .jp-InputGroup input:focus {
-  box-shadow: inset 0 0 0 var(--jp-border-width)
-      var(--jp-input-active-box-shadow-color),
+  box-shadow:
+    inset 0 0 0 var(--jp-border-width) var(--jp-input-active-box-shadow-color),
     inset 0 0 0 3px var(--jp-input-active-box-shadow-color);
 }
 
-.jp-InputGroup input::placeholder,
-input::placeholder {
-  color: var(--jp-ui-font-color3);
+.jp-InputGroup input:disabled {
+  cursor: not-allowed;
+  resize: block;
+  background-color: var(--jp-layout-color2);
+  color: var(--jp-ui-font-color2);
 }
 
-.jp-BPIcon {
-  display: inline-block;
-  vertical-align: middle;
-  margin: auto;
+.jp-InputGroup input:disabled ~ span {
+  cursor: not-allowed;
+  color: var(--jp-ui-font-color2);
 }
 
-/* Stop blueprint futzing with our icon fills */
-.bp3-icon.jp-BPIcon > svg:not([fill]) {
-  fill: var(--jp-inverse-layout-color3);
+.jp-InputGroup input::placeholder,
+input::placeholder {
+  color: var(--jp-ui-font-color2);
 }
 
 .jp-InputGroupAction {
+  position: absolute;
+  bottom: 1px;
+  right: 0;
   padding: 6px;
 }
 
@@ -119,6 +158,7 @@ input::placeholder {
   color: var(--jp-ui-font-color0);
   display: block;
   font-size: var(--jp-ui-font-size1);
+  font-family: var(--jp-ui-font-family);
   height: 24px;
   line-height: 14px;
   padding: 0 25px 0 10px;
@@ -127,12 +167,25 @@ input::placeholder {
   -webkit-appearance: none;
 }
 
+.jp-HTMLSelect.jp-DefaultStyle select:disabled {
+  background-color: var(--jp-layout-color2);
+  color: var(--jp-ui-font-color2);
+  cursor: not-allowed;
+  resize: block;
+}
+
+.jp-HTMLSelect.jp-DefaultStyle select:disabled ~ span {
+  cursor: not-allowed;
+}
+
 /* Use our own theme for hover and option styles */
+/* stylelint-disable-next-line selector-max-type */
 .jp-HTMLSelect.jp-DefaultStyle select:hover,
 .jp-HTMLSelect.jp-DefaultStyle select > option {
   background-color: var(--jp-layout-color2);
   color: var(--jp-ui-font-color0);
 }
+
 select {
   box-sizing: border-box;
 }
diff --git a/packages/apputils/style/collapse.css b/packages/ui-components/style/collapse.css
similarity index 57%
rename from packages/apputils/style/collapse.css
rename to packages/ui-components/style/collapse.css
index 0a1d9ed8b41d..459421bed57c 100644
--- a/packages/apputils/style/collapse.css
+++ b/packages/ui-components/style/collapse.css
@@ -7,23 +7,37 @@
   display: flex;
   flex-direction: column;
   align-items: stretch;
-  border-top: 1px solid var(--jp-border-color2);
-  border-bottom: 1px solid var(--jp-border-color2);
 }
 
 .jp-Collapse-header {
   padding: 1px 12px;
-  color: var(--jp-ui-font-color1);
   background-color: var(--jp-layout-color1);
-  font-size: var(--jp-ui-font-size2);
+  border-bottom: solid var(--jp-border-width) var(--jp-border-color2);
+  color: var(--jp-ui-font-color1);
+  cursor: pointer;
+  display: flex;
+  align-items: center;
+  font-size: var(--jp-ui-font-size0);
+  font-weight: 600;
+  text-transform: uppercase;
+  user-select: none;
+}
+
+.jp-Collapser-icon {
+  height: 16px;
+}
+
+.jp-Collapse-header-collapsed .jp-Collapser-icon {
+  transform: rotate(-90deg);
+  margin: auto 0;
 }
 
-.jp-Collapse-header:hover {
-  background-color: var(--jp-layout-color2);
+.jp-Collapser-title {
+  line-height: 25px;
 }
 
 .jp-Collapse-contents {
-  padding: 0px 12px 0px 12px;
+  padding: 0 12px;
   background-color: var(--jp-layout-color1);
   color: var(--jp-ui-font-color1);
   overflow: auto;
diff --git a/packages/ui-components/style/deprecated.css b/packages/ui-components/style/deprecated.css
index 3bd6c6d60ba1..93633780cf2c 100644
--- a/packages/ui-components/style/deprecated.css
+++ b/packages/ui-components/style/deprecated.css
@@ -32,7 +32,9 @@
   --jp-icon-circle: url('icons/toolbar/circle.svg');
   --jp-icon-clear: url('icons/toolbar/clear.svg');
   --jp-icon-close: url('icons/toolbar/close.svg');
+  --jp-icon-code-check: url('icons/lsp/code-check.svg');
   --jp-icon-code: url('icons/toolbar/code.svg');
+  --jp-icon-collapse-all: url('icons/toolbar/collapse-all.svg');
   --jp-icon-console: url('icons/filetype/console.svg');
   --jp-icon-copy: url('icons/toolbar/copy.svg');
   --jp-icon-copyright: url('icons/licenses/copyright.svg');
@@ -42,16 +44,21 @@
   --jp-icon-duplicate: url('icons/toolbar/duplicate.svg');
   --jp-icon-edit: url('icons/toolbar/edit.svg');
   --jp-icon-ellipses: url('icons/toolbar/ellipses.svg');
+  --jp-icon-error: url('icons/error.svg');
+  --jp-icon-expand-all: url('icons/toolbar/expand-all.svg');
   --jp-icon-extension: url('icons/sidebar/extension.svg');
   --jp-icon-fast-forward: url('icons/toolbar/fast-forward.svg');
   --jp-icon-file-upload: url('icons/toolbar/file-upload.svg');
   --jp-icon-file: url('icons/filetype/file.svg');
+  --jp-icon-filter-dot: url('icons/search/filter-dot.svg');
   --jp-icon-filter-list: url('icons/toolbar/filter-list.svg');
+  --jp-icon-filter: url('icons/search/filter.svg');
   --jp-icon-folder-favorite: url('icons/filetype/folder-favorite.svg');
   --jp-icon-folder: url('icons/filetype/folder.svg');
   --jp-icon-home: url('icons/filetype/home.svg');
   --jp-icon-html5: url('icons/filetype/html5.svg');
   --jp-icon-image: url('icons/filetype/image.svg');
+  --jp-icon-info: url('icons/info.svg');
   --jp-icon-inspector: url('icons/filetype/inspector.svg');
   --jp-icon-json: url('icons/filetype/json.svg');
   --jp-icon-julia: url('icons/filetype/julia.svg');
@@ -65,7 +72,6 @@
   --jp-icon-line-form: url('icons/statusbar/line-form.svg');
   --jp-icon-link: url('icons/toolbar/link.svg');
   --jp-icon-list: url('icons/statusbar/list.svg');
-  --jp-icon-listings-info: url('icons/listings/listings-info.svg');
   --jp-icon-markdown: url('icons/filetype/markdown.svg');
   --jp-icon-move-down: url('icons/toolbar/move-down.svg');
   --jp-icon-move-up: url('icons/toolbar/move-up.svg');
@@ -103,6 +109,7 @@
   --jp-icon-user: url('icons/sidebar/user.svg');
   --jp-icon-users: url('icons/sidebar/users.svg');
   --jp-icon-vega: url('icons/filetype/vega.svg');
+  --jp-icon-word: url('icons/search/word.svg');
   --jp-icon-yaml: url('icons/filetype/yaml.svg');
 }
 
@@ -111,276 +118,395 @@
 .jp-AddAboveIcon {
   background-image: var(--jp-icon-add-above);
 }
+
 .jp-AddBelowIcon {
   background-image: var(--jp-icon-add-below);
 }
+
 .jp-AddIcon {
   background-image: var(--jp-icon-add);
 }
+
 .jp-BellIcon {
   background-image: var(--jp-icon-bell);
 }
+
 .jp-BugDotIcon {
   background-image: var(--jp-icon-bug-dot);
 }
+
 .jp-BugIcon {
   background-image: var(--jp-icon-bug);
 }
+
 .jp-BuildIcon {
   background-image: var(--jp-icon-build);
 }
+
 .jp-CaretDownEmptyIcon {
   background-image: var(--jp-icon-caret-down-empty);
 }
+
 .jp-CaretDownEmptyThinIcon {
   background-image: var(--jp-icon-caret-down-empty-thin);
 }
+
 .jp-CaretDownIcon {
   background-image: var(--jp-icon-caret-down);
 }
+
 .jp-CaretLeftIcon {
   background-image: var(--jp-icon-caret-left);
 }
+
 .jp-CaretRightIcon {
   background-image: var(--jp-icon-caret-right);
 }
+
 .jp-CaretUpEmptyThinIcon {
   background-image: var(--jp-icon-caret-up-empty-thin);
 }
+
 .jp-CaretUpIcon {
   background-image: var(--jp-icon-caret-up);
 }
+
 .jp-CaseSensitiveIcon {
   background-image: var(--jp-icon-case-sensitive);
 }
+
 .jp-CheckIcon {
   background-image: var(--jp-icon-check);
 }
+
 .jp-CircleEmptyIcon {
   background-image: var(--jp-icon-circle-empty);
 }
+
 .jp-CircleIcon {
   background-image: var(--jp-icon-circle);
 }
+
 .jp-ClearIcon {
   background-image: var(--jp-icon-clear);
 }
+
 .jp-CloseIcon {
   background-image: var(--jp-icon-close);
 }
+
+.jp-CodeCheckIcon {
+  background-image: var(--jp-icon-code-check);
+}
+
 .jp-CodeIcon {
   background-image: var(--jp-icon-code);
 }
+
+.jp-CollapseAllIcon {
+  background-image: var(--jp-icon-collapse-all);
+}
+
 .jp-ConsoleIcon {
   background-image: var(--jp-icon-console);
 }
+
 .jp-CopyIcon {
   background-image: var(--jp-icon-copy);
 }
+
 .jp-CopyrightIcon {
   background-image: var(--jp-icon-copyright);
 }
+
 .jp-CutIcon {
   background-image: var(--jp-icon-cut);
 }
+
 .jp-DeleteIcon {
   background-image: var(--jp-icon-delete);
 }
+
 .jp-DownloadIcon {
   background-image: var(--jp-icon-download);
 }
+
 .jp-DuplicateIcon {
   background-image: var(--jp-icon-duplicate);
 }
+
 .jp-EditIcon {
   background-image: var(--jp-icon-edit);
 }
+
 .jp-EllipsesIcon {
   background-image: var(--jp-icon-ellipses);
 }
+
+.jp-ErrorIcon {
+  background-image: var(--jp-icon-error);
+}
+
+.jp-ExpandAllIcon {
+  background-image: var(--jp-icon-expand-all);
+}
+
 .jp-ExtensionIcon {
   background-image: var(--jp-icon-extension);
 }
+
 .jp-FastForwardIcon {
   background-image: var(--jp-icon-fast-forward);
 }
+
 .jp-FileIcon {
   background-image: var(--jp-icon-file);
 }
+
 .jp-FileUploadIcon {
   background-image: var(--jp-icon-file-upload);
 }
+
+.jp-FilterDotIcon {
+  background-image: var(--jp-icon-filter-dot);
+}
+
+.jp-FilterIcon {
+  background-image: var(--jp-icon-filter);
+}
+
 .jp-FilterListIcon {
   background-image: var(--jp-icon-filter-list);
 }
+
 .jp-FolderFavoriteIcon {
   background-image: var(--jp-icon-folder-favorite);
 }
+
 .jp-FolderIcon {
   background-image: var(--jp-icon-folder);
 }
+
 .jp-HomeIcon {
   background-image: var(--jp-icon-home);
 }
+
 .jp-Html5Icon {
   background-image: var(--jp-icon-html5);
 }
+
 .jp-ImageIcon {
   background-image: var(--jp-icon-image);
 }
+
+.jp-InfoIcon {
+  background-image: var(--jp-icon-info);
+}
+
 .jp-InspectorIcon {
   background-image: var(--jp-icon-inspector);
 }
+
 .jp-JsonIcon {
   background-image: var(--jp-icon-json);
 }
+
 .jp-JuliaIcon {
   background-image: var(--jp-icon-julia);
 }
+
 .jp-JupyterFaviconIcon {
   background-image: var(--jp-icon-jupyter-favicon);
 }
+
 .jp-JupyterIcon {
   background-image: var(--jp-icon-jupyter);
 }
+
 .jp-JupyterlabWordmarkIcon {
   background-image: var(--jp-icon-jupyterlab-wordmark);
 }
+
 .jp-KernelIcon {
   background-image: var(--jp-icon-kernel);
 }
+
 .jp-KeyboardIcon {
   background-image: var(--jp-icon-keyboard);
 }
+
 .jp-LaunchIcon {
   background-image: var(--jp-icon-launch);
 }
+
 .jp-LauncherIcon {
   background-image: var(--jp-icon-launcher);
 }
+
 .jp-LineFormIcon {
   background-image: var(--jp-icon-line-form);
 }
+
 .jp-LinkIcon {
   background-image: var(--jp-icon-link);
 }
+
 .jp-ListIcon {
   background-image: var(--jp-icon-list);
 }
-.jp-ListingsInfoIcon {
-  background-image: var(--jp-icon-listings-info);
-}
+
 .jp-MarkdownIcon {
   background-image: var(--jp-icon-markdown);
 }
+
 .jp-MoveDownIcon {
   background-image: var(--jp-icon-move-down);
 }
+
 .jp-MoveUpIcon {
   background-image: var(--jp-icon-move-up);
 }
+
 .jp-NewFolderIcon {
   background-image: var(--jp-icon-new-folder);
 }
+
 .jp-NotTrustedIcon {
   background-image: var(--jp-icon-not-trusted);
 }
+
 .jp-NotebookIcon {
   background-image: var(--jp-icon-notebook);
 }
+
 .jp-NumberingIcon {
   background-image: var(--jp-icon-numbering);
 }
+
 .jp-OfflineBoltIcon {
   background-image: var(--jp-icon-offline-bolt);
 }
+
 .jp-PaletteIcon {
   background-image: var(--jp-icon-palette);
 }
+
 .jp-PasteIcon {
   background-image: var(--jp-icon-paste);
 }
+
 .jp-PdfIcon {
   background-image: var(--jp-icon-pdf);
 }
+
 .jp-PythonIcon {
   background-image: var(--jp-icon-python);
 }
+
 .jp-RKernelIcon {
   background-image: var(--jp-icon-r-kernel);
 }
+
 .jp-ReactIcon {
   background-image: var(--jp-icon-react);
 }
+
 .jp-RedoIcon {
   background-image: var(--jp-icon-redo);
 }
+
 .jp-RefreshIcon {
   background-image: var(--jp-icon-refresh);
 }
+
 .jp-RegexIcon {
   background-image: var(--jp-icon-regex);
 }
+
 .jp-RunIcon {
   background-image: var(--jp-icon-run);
 }
+
 .jp-RunningIcon {
   background-image: var(--jp-icon-running);
 }
+
 .jp-SaveIcon {
   background-image: var(--jp-icon-save);
 }
+
 .jp-SearchIcon {
   background-image: var(--jp-icon-search);
 }
+
 .jp-SettingsIcon {
   background-image: var(--jp-icon-settings);
 }
+
 .jp-ShareIcon {
   background-image: var(--jp-icon-share);
 }
+
 .jp-SpreadsheetIcon {
   background-image: var(--jp-icon-spreadsheet);
 }
+
 .jp-StopIcon {
   background-image: var(--jp-icon-stop);
 }
+
 .jp-TabIcon {
   background-image: var(--jp-icon-tab);
 }
+
 .jp-TableRowsIcon {
   background-image: var(--jp-icon-table-rows);
 }
+
 .jp-TagIcon {
   background-image: var(--jp-icon-tag);
 }
+
 .jp-TerminalIcon {
   background-image: var(--jp-icon-terminal);
 }
+
 .jp-TextEditorIcon {
   background-image: var(--jp-icon-text-editor);
 }
+
 .jp-TocIcon {
   background-image: var(--jp-icon-toc);
 }
+
 .jp-TreeViewIcon {
   background-image: var(--jp-icon-tree-view);
 }
+
 .jp-TrustedIcon {
   background-image: var(--jp-icon-trusted);
 }
+
 .jp-UndoIcon {
   background-image: var(--jp-icon-undo);
 }
+
 .jp-UserIcon {
   background-image: var(--jp-icon-user);
 }
+
 .jp-UsersIcon {
   background-image: var(--jp-icon-users);
 }
+
 .jp-VegaIcon {
   background-image: var(--jp-icon-vega);
 }
+
+.jp-WordIcon {
+  background-image: var(--jp-icon-word);
+}
+
 .jp-YamlIcon {
   background-image: var(--jp-icon-yaml);
 }
diff --git a/packages/ui-components/style/hoverbox.css b/packages/ui-components/style/hoverbox.css
new file mode 100644
index 000000000000..0df355467890
--- /dev/null
+++ b/packages/ui-components/style/hoverbox.css
@@ -0,0 +1,19 @@
+/*-----------------------------------------------------------------------------
+<<<<<<<< HEAD:packages/collaboration-extension/style/base.css
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+.jp-UserMenu-Spacer {
+  flex-grow: 1;
+  flex-shrink: 1;
+========
+| Copyright (c) 2014-2016, Jupyter Development Team.
+|
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+.jp-HoverBox {
+  position: fixed;
+>>>>>>>> 2c9dff7e8343400b5d7d65839cd2f48e8d5ddb69:packages/ui-components/style/hoverbox.css
+}
diff --git a/packages/ui-components/style/icons.css b/packages/ui-components/style/icons.css
index 7278ecbc2f2e..f11ce77ed741 100644
--- a/packages/ui-components/style/icons.css
+++ b/packages/ui-components/style/icons.css
@@ -11,15 +11,19 @@
 .jp-icon0[fill] {
   fill: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon1[fill] {
   fill: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon2[fill] {
   fill: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon3[fill] {
   fill: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon4[fill] {
   fill: var(--jp-inverse-layout-color4);
 }
@@ -27,31 +31,40 @@
 .jp-icon0[stroke] {
   stroke: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon1[stroke] {
   stroke: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon2[stroke] {
   stroke: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon3[stroke] {
   stroke: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon4[stroke] {
   stroke: var(--jp-inverse-layout-color4);
 }
+
 /* recolor the accent elements of an icon */
 .jp-icon-accent0[fill] {
   fill: var(--jp-layout-color0);
 }
+
 .jp-icon-accent1[fill] {
   fill: var(--jp-layout-color1);
 }
+
 .jp-icon-accent2[fill] {
   fill: var(--jp-layout-color2);
 }
+
 .jp-icon-accent3[fill] {
   fill: var(--jp-layout-color3);
 }
+
 .jp-icon-accent4[fill] {
   fill: var(--jp-layout-color4);
 }
@@ -59,18 +72,23 @@
 .jp-icon-accent0[stroke] {
   stroke: var(--jp-layout-color0);
 }
+
 .jp-icon-accent1[stroke] {
   stroke: var(--jp-layout-color1);
 }
+
 .jp-icon-accent2[stroke] {
   stroke: var(--jp-layout-color2);
 }
+
 .jp-icon-accent3[stroke] {
   stroke: var(--jp-layout-color3);
 }
+
 .jp-icon-accent4[stroke] {
   stroke: var(--jp-layout-color4);
 }
+
 /* set the color of an icon to transparent */
 .jp-icon-none[fill] {
   fill: none;
@@ -79,19 +97,24 @@
 .jp-icon-none[stroke] {
   stroke: none;
 }
+
 /* brand icon colors. Same for light and dark */
 .jp-icon-brand0[fill] {
   fill: var(--jp-brand-color0);
 }
+
 .jp-icon-brand1[fill] {
   fill: var(--jp-brand-color1);
 }
+
 .jp-icon-brand2[fill] {
   fill: var(--jp-brand-color2);
 }
+
 .jp-icon-brand3[fill] {
   fill: var(--jp-brand-color3);
 }
+
 .jp-icon-brand4[fill] {
   fill: var(--jp-brand-color4);
 }
@@ -99,28 +122,36 @@
 .jp-icon-brand0[stroke] {
   stroke: var(--jp-brand-color0);
 }
+
 .jp-icon-brand1[stroke] {
   stroke: var(--jp-brand-color1);
 }
+
 .jp-icon-brand2[stroke] {
   stroke: var(--jp-brand-color2);
 }
+
 .jp-icon-brand3[stroke] {
   stroke: var(--jp-brand-color3);
 }
+
 .jp-icon-brand4[stroke] {
   stroke: var(--jp-brand-color4);
 }
+
 /* warn icon colors. Same for light and dark */
 .jp-icon-warn0[fill] {
   fill: var(--jp-warn-color0);
 }
+
 .jp-icon-warn1[fill] {
   fill: var(--jp-warn-color1);
 }
+
 .jp-icon-warn2[fill] {
   fill: var(--jp-warn-color2);
 }
+
 .jp-icon-warn3[fill] {
   fill: var(--jp-warn-color3);
 }
@@ -128,25 +159,32 @@
 .jp-icon-warn0[stroke] {
   stroke: var(--jp-warn-color0);
 }
+
 .jp-icon-warn1[stroke] {
   stroke: var(--jp-warn-color1);
 }
+
 .jp-icon-warn2[stroke] {
   stroke: var(--jp-warn-color2);
 }
+
 .jp-icon-warn3[stroke] {
   stroke: var(--jp-warn-color3);
 }
+
 /* icon colors that contrast well with each other and most backgrounds */
 .jp-icon-contrast0[fill] {
   fill: var(--jp-icon-contrast-color0);
 }
+
 .jp-icon-contrast1[fill] {
   fill: var(--jp-icon-contrast-color1);
 }
+
 .jp-icon-contrast2[fill] {
   fill: var(--jp-icon-contrast-color2);
 }
+
 .jp-icon-contrast3[fill] {
   fill: var(--jp-icon-contrast-color3);
 }
@@ -154,16 +192,23 @@
 .jp-icon-contrast0[stroke] {
   stroke: var(--jp-icon-contrast-color0);
 }
+
 .jp-icon-contrast1[stroke] {
   stroke: var(--jp-icon-contrast-color1);
 }
+
 .jp-icon-contrast2[stroke] {
   stroke: var(--jp-icon-contrast-color2);
 }
+
 .jp-icon-contrast3[stroke] {
   stroke: var(--jp-icon-contrast-color3);
 }
 
+.jp-icon-dot[fill] {
+  fill: var(--jp-warn-color0);
+}
+
 .jp-jupyter-icon-color[fill] {
   fill: var(--jp-jupyter-icon-color, var(--jp-warn-color0));
 }
@@ -189,76 +234,30 @@
 }
 
 .jp-terminal-icon-background-color[fill] {
-  fill: var(--jp-terminal-icon-background-color, var(--jp-inverse-layout2));
+  fill: var(
+    --jp-terminal-icon-background-color,
+    var(--jp-inverse-layout-color2)
+  );
 }
 
 .jp-text-editor-icon-color[fill] {
-  fill: var(--jp-text-editor-icon-color, var(--jp-inverse-layout3));
+  fill: var(--jp-text-editor-icon-color, var(--jp-inverse-layout-color3));
 }
 
 .jp-inspector-icon-color[fill] {
-  fill: var(--jp-inspector-icon-color, var(--jp-inverse-layout3));
+  fill: var(--jp-inspector-icon-color, var(--jp-inverse-layout-color3));
 }
 
 /* CSS for icons in selected filebrowser listing items */
 .jp-DirListing-item.jp-mod-selected .jp-icon-selectable[fill] {
   fill: #fff;
 }
-.jp-DirListing-item.jp-mod-selected .jp-icon-selectable-inverse[fill] {
-  fill: var(--jp-brand-color1);
-}
 
-/* CSS for icons in selected tabs in the sidebar tab manager */
-#tab-manager .lm-TabBar-tab.jp-mod-active .jp-icon-selectable[fill] {
-  fill: #fff;
-}
-
-#tab-manager .lm-TabBar-tab.jp-mod-active .jp-icon-selectable-inverse[fill] {
-  fill: var(--jp-brand-color1);
-}
-#tab-manager
-  .lm-TabBar-tab.jp-mod-active
-  .jp-icon-hover
-  :hover
-  .jp-icon-selectable[fill] {
+.jp-DirListing-item.jp-mod-selected .jp-icon-selectable-inverse[fill] {
   fill: var(--jp-brand-color1);
 }
 
-#tab-manager
-  .lm-TabBar-tab.jp-mod-active
-  .jp-icon-hover
-  :hover
-  .jp-icon-selectable-inverse[fill] {
-  fill: #fff;
-}
-
-/**
- * TODO: come up with non css-hack solution for showing the busy icon on top
- *  of the close icon
- * CSS for complex behavior of close icon of tabs in the sidebar tab manager
- */
-#tab-manager
-  .lm-TabBar-tab.jp-mod-dirty
-  > .lm-TabBar-tabCloseIcon
-  > :not(:hover)
-  > .jp-icon3[fill] {
-  fill: none;
-}
-#tab-manager
-  .lm-TabBar-tab.jp-mod-dirty
-  > .lm-TabBar-tabCloseIcon
-  > :not(:hover)
-  > .jp-icon-busy[fill] {
-  fill: var(--jp-inverse-layout-color3);
-}
-
-#tab-manager
-  .lm-TabBar-tab.jp-mod-dirty.jp-mod-active
-  > .lm-TabBar-tabCloseIcon
-  > :not(:hover)
-  > .jp-icon-busy[fill] {
-  fill: #fff;
-}
+/* stylelint-disable selector-max-class, selector-max-compound-selectors */
 
 /**
 * TODO: come up with non css-hack solution for showing the busy icon on top
@@ -272,6 +271,7 @@
   > .jp-icon3[fill] {
   fill: none;
 }
+
 .lm-DockPanel-tabBar
   .lm-TabBar-tab.lm-mod-closable.jp-mod-dirty
   > .lm-TabBar-tabCloseIcon
@@ -280,6 +280,8 @@
   fill: var(--jp-inverse-layout-color3);
 }
 
+/* stylelint-enable selector-max-class, selector-max-compound-selectors */
+
 /* CSS for icons in status bar */
 #jp-main-statusbar .jp-mod-selected .jp-icon-selectable[fill] {
   fill: #fff;
@@ -288,6 +290,7 @@
 #jp-main-statusbar .jp-mod-selected .jp-icon-selectable-inverse[fill] {
   fill: var(--jp-brand-color1);
 }
+
 /* special handling for splash icon CSS. While the theme CSS reloads during
    splash, the splash icon can loose theming. To prevent that, we set a
    default for its color variable */
diff --git a/packages/ui-components/style/icons/error.svg b/packages/ui-components/style/icons/error.svg
new file mode 100644
index 000000000000..c51e0322398c
--- /dev/null
+++ b/packages/ui-components/style/icons/error.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
+<g class="jp-icon3" fill="#616161"><circle cx="12" cy="19" r="2"/><path d="M10 3h4v12h-4z"/></g>
+<path fill="none" d="M0 0h24v24H0z"/>
+</svg>
diff --git a/packages/ui-components/style/icons/listings/listings-info.svg b/packages/ui-components/style/icons/info.svg
similarity index 77%
rename from packages/ui-components/style/icons/listings/listings-info.svg
rename to packages/ui-components/style/icons/info.svg
index 5810866e6594..3e63698eb1d3 100644
--- a/packages/ui-components/style/icons/listings/listings-info.svg
+++ b/packages/ui-components/style/icons/info.svg
@@ -1,12 +1,12 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 50.978 50.978" style="enable-background:new 0 0 50.978 50.978;" xml:space="preserve">
-	<g>
-		<path style="fill:#010002;" d="M43.52,7.458C38.711,2.648,32.307,0,25.489,0C18.67,0,12.266,2.648,7.458,7.458
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 50.978 50.978">
+	<g class="jp-icon3" fill="#616161">
+		<path d="M43.52,7.458C38.711,2.648,32.307,0,25.489,0C18.67,0,12.266,2.648,7.458,7.458
 			c-9.943,9.941-9.943,26.119,0,36.062c4.809,4.809,11.212,7.456,18.031,7.458c0,0,0.001,0,0.002,0
 			c6.816,0,13.221-2.648,18.029-7.458c4.809-4.809,7.457-11.212,7.457-18.03C50.977,18.67,48.328,12.266,43.52,7.458z
 			 M42.106,42.105c-4.432,4.431-10.332,6.872-16.615,6.872h-0.002c-6.285-0.001-12.187-2.441-16.617-6.872
 			c-9.162-9.163-9.162-24.071,0-33.233C13.303,4.44,19.204,2,25.489,2c6.284,0,12.186,2.44,16.617,6.872
 			c4.431,4.431,6.871,10.332,6.871,16.617C48.977,31.772,46.536,37.675,42.106,42.105z"/>
-		<path style="fill:#010002;" d="M23.578,32.218c-0.023-1.734,0.143-3.059,0.496-3.972c0.353-0.913,1.11-1.997,2.272-3.253
+		<path d="M23.578,32.218c-0.023-1.734,0.143-3.059,0.496-3.972c0.353-0.913,1.11-1.997,2.272-3.253
 			c0.468-0.536,0.923-1.062,1.367-1.575c0.626-0.753,1.104-1.478,1.436-2.175c0.331-0.707,0.495-1.541,0.495-2.5
 			c0-1.096-0.26-2.088-0.779-2.979c-0.565-0.879-1.501-1.336-2.806-1.369c-1.802,0.057-2.985,0.667-3.55,1.832
 			c-0.301,0.535-0.503,1.141-0.607,1.814c-0.139,0.707-0.207,1.432-0.207,2.174h-2.937c-0.091-2.208,0.407-4.114,1.493-5.719
diff --git a/packages/ui-components/style/icons/lsp/code-check.svg b/packages/ui-components/style/icons/lsp/code-check.svg
new file mode 100644
index 000000000000..c469d86d73e8
--- /dev/null
+++ b/packages/ui-components/style/icons/lsp/code-check.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" viewBox="0 0 24 24">
+  <g class="jp-icon3 jp-icon-selectable" fill="#616161" shape-rendering="geometricPrecision">
+    <path d="M6.59,3.41L2,8L6.59,12.6L8,11.18L4.82,8L8,4.82L6.59,3.41M12.41,3.41L11,4.82L14.18,8L11,11.18L12.41,12.6L17,8L12.41,3.41M21.59,11.59L13.5,19.68L9.83,16L8.42,17.41L13.5,22.5L23,13L21.59,11.59Z" />
+  </g>
+</svg>
diff --git a/packages/ui-components/style/icons/search/filter-dot.svg b/packages/ui-components/style/icons/search/filter-dot.svg
new file mode 100644
index 000000000000..4ae72dd6cd7d
--- /dev/null
+++ b/packages/ui-components/style/icons/search/filter-dot.svg
@@ -0,0 +1,8 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
+  <g class="jp-icon3" fill="#FFF">
+    <path d="M14,12V19.88C14.04,20.18 13.94,20.5 13.71,20.71C13.32,21.1 12.69,21.1 12.3,20.71L10.29,18.7C10.06,18.47 9.96,18.16 10,17.87V12H9.97L4.21,4.62C3.87,4.19 3.95,3.56 4.38,3.22C4.57,3.08 4.78,3 5,3V3H19V3C19.22,3 19.43,3.08 19.62,3.22C20.05,3.56 20.13,4.19 19.79,4.62L14.03,12H14Z" />
+  </g>
+  <g class="jp-icon-dot" fill="#FFF">
+    <circle cx="18" cy="17" r="3"></circle>
+  </g>
+</svg>
diff --git a/packages/ui-components/style/icons/search/filter.svg b/packages/ui-components/style/icons/search/filter.svg
new file mode 100644
index 000000000000..92166e025ab5
--- /dev/null
+++ b/packages/ui-components/style/icons/search/filter.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
+  <g class="jp-icon3" fill="#FFF">
+    <path d="M14,12V19.88C14.04,20.18 13.94,20.5 13.71,20.71C13.32,21.1 12.69,21.1 12.3,20.71L10.29,18.7C10.06,18.47 9.96,18.16 10,17.87V12H9.97L4.21,4.62C3.87,4.19 3.95,3.56 4.38,3.22C4.57,3.08 4.78,3 5,3V3H19V3C19.22,3 19.43,3.08 19.62,3.22C20.05,3.56 20.13,4.19 19.79,4.62L14.03,12H14Z" />
+  </g>
+</svg>
diff --git a/packages/ui-components/style/icons/search/word.svg b/packages/ui-components/style/icons/search/word.svg
new file mode 100644
index 000000000000..8723eff9b7fb
--- /dev/null
+++ b/packages/ui-components/style/icons/search/word.svg
@@ -0,0 +1,10 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 20 20">
+ <g class="jp-icon2" fill="#414141">
+  <rect x="2" y="2" width="16" height="16"/>
+ </g>
+ <g class="jp-icon-accent2" transform="translate(.43 .0401)" fill="#fff">
+  <path d="m4.14 8.76q0.0682-1.89 2.42-1.89 1.16 0 1.68 0.42 0.567 0.41 0.567 1.16v3.47q0 0.462 0.514 0.462 0.103 0 0.2-0.0231v0.714q-0.399 0.103-0.651 0.103-0.452 0-0.693-0.22-0.231-0.2-0.284-0.662-0.956 0.872-2 0.872-0.903 0-1.47-0.472-0.525-0.472-0.525-1.26 0-0.262 0.0452-0.472 0.0567-0.22 0.116-0.378 0.0682-0.168 0.231-0.304 0.158-0.147 0.262-0.242 0.116-0.0914 0.368-0.168 0.262-0.0914 0.399-0.126 0.136-0.0452 0.472-0.103 0.336-0.0578 0.504-0.0798 0.158-0.0231 0.567-0.0798 0.556-0.0682 0.777-0.221 0.22-0.152 0.22-0.441v-0.252q0-0.43-0.357-0.662-0.336-0.231-0.976-0.231-0.662 0-0.998 0.262-0.336 0.252-0.399 0.798zm1.89 3.68q0.788 0 1.26-0.41 0.504-0.42 0.504-0.903v-1.05q-0.284 0.136-0.861 0.231-0.567 0.0914-0.987 0.158-0.42 0.0682-0.766 0.326-0.336 0.252-0.336 0.704t0.304 0.704 0.861 0.252z" stroke-width="1.05"/>
+  <path d="m10 4.56h0.945v3.15q0.651-0.976 1.89-0.976 1.16 0 1.89 0.84 0.682 0.84 0.682 2.31 0 1.47-0.704 2.42-0.704 0.882-1.89 0.882-1.26 0-1.89-1.02v0.766h-0.85zm2.62 3.04q-0.746 0-1.16 0.64-0.452 0.63-0.452 1.68 0 1.05 0.452 1.68t1.16 0.63q0.777 0 1.26-0.63 0.494-0.64 0.494-1.68 0-1.05-0.472-1.68-0.462-0.64-1.26-0.64z" stroke-width="1.05"/>
+  <path d="m2.73 15.8 13.6 0.0081c0.0069 0 0-2.6 0-2.6 0-0.0078-1.15 0-1.15 0-0.0069 0-0.0083 1.5-0.0083 1.5-2e-3 -0.0014-11.3-0.0014-11.3-0.0014l-0.00592-1.5c0-0.0078-1.17 0.0013-1.17 0.0013z" stroke-width=".975"/>
+ </g>
+</svg>
diff --git a/packages/ui-components/style/icons/sidebar/user.svg b/packages/ui-components/style/icons/sidebar/user.svg
index 54433950475e..c4451a70add3 100644
--- a/packages/ui-components/style/icons/sidebar/user.svg
+++ b/packages/ui-components/style/icons/sidebar/user.svg
@@ -2,4 +2,4 @@
   <g class="jp-icon3" fill="#616161">
     <path d="M16 7a4 4 0 11-8 0 4 4 0 018 0zM12 14a7 7 0 00-7 7h14a7 7 0 00-7-7z"/>
   </g>
-</svg>
\ No newline at end of file
+</svg>
diff --git a/packages/ui-components/style/icons/statusbar/list.svg b/packages/ui-components/style/icons/statusbar/list.svg
index 4de147328ecd..40ec017af163 100644
--- a/packages/ui-components/style/icons/statusbar/list.svg
+++ b/packages/ui-components/style/icons/statusbar/list.svg
@@ -1,3 +1,3 @@
 <svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
     <path class="jp-icon2 jp-icon-selectable" fill="#616161" d="M19 5v14H5V5h14m1.1-2H3.9c-.5 0-.9.4-.9.9v16.2c0 .4.4.9.9.9h16.2c.4 0 .9-.5.9-.9V3.9c0-.5-.5-.9-.9-.9zM11 7h6v2h-6V7zm0 4h6v2h-6v-2zm0 4h6v2h-6zM7 7h2v2H7zm0 4h2v2H7zm0 4h2v2H7z"/>
-</svg>
\ No newline at end of file
+</svg>
diff --git a/packages/ui-components/style/icons/toolbar/collapse-all.svg b/packages/ui-components/style/icons/toolbar/collapse-all.svg
new file mode 100644
index 000000000000..c82f2d7cb284
--- /dev/null
+++ b/packages/ui-components/style/icons/toolbar/collapse-all.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
+    <g class="jp-icon3" fill="#616161">
+        <path
+            d="M8 2c1 0 11 0 12 0s2 1 2 2c0 1 0 11 0 12s0 2-2 2C20 14 20 4 20 4S10 4 6 4c0-2 1-2 2-2z" />
+        <path
+            d="M18 8c0-1-1-2-2-2S5 6 4 6s-2 1-2 2c0 1 0 11 0 12s1 2 2 2c1 0 11 0 12 0s2-1 2-2c0-1 0-11 0-12zm-2 0v12H4V8z" />
+        <path d="M6 13v2h8v-2z" />
+    </g>
+</svg>
diff --git a/packages/ui-components/style/icons/toolbar/expand-all.svg b/packages/ui-components/style/icons/toolbar/expand-all.svg
new file mode 100644
index 000000000000..88d130d4f665
--- /dev/null
+++ b/packages/ui-components/style/icons/toolbar/expand-all.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" viewBox="0 0 24 24">
+    <g class="jp-icon3" fill="#616161">
+        <path
+            d="M8 2c1 0 11 0 12 0s2 1 2 2c0 1 0 11 0 12s0 2-2 2C20 14 20 4 20 4S10 4 6 4c0-2 1-2 2-2z" />
+        <path
+            d="M18 8c0-1-1-2-2-2S5 6 4 6s-2 1-2 2c0 1 0 11 0 12s1 2 2 2c1 0 11 0 12 0s2-1 2-2c0-1 0-11 0-12zm-2 0v12H4V8z" />
+        <path d="M11 10H9v3H6v2h3v3h2v-3h3v-2h-3z" />
+    </g>
+</svg>
diff --git a/packages/ui-components/style/icons/toolbar/table-rows.svg b/packages/ui-components/style/icons/toolbar/table-rows.svg
index 0a241774cede..7064eb0debf5 100644
--- a/packages/ui-components/style/icons/toolbar/table-rows.svg
+++ b/packages/ui-components/style/icons/toolbar/table-rows.svg
@@ -3,4 +3,4 @@
         <path d="M0 0h24v24H0z" fill="none"/>
         <path d="M21,8H3V4h18V8z M21,10H3v4h18V10z M21,16H3v4h18V16z"/>
     </g>
-</svg>
\ No newline at end of file
+</svg>
diff --git a/packages/ui-components/style/icons/toolbar/tree-view.svg b/packages/ui-components/style/icons/toolbar/tree-view.svg
index 48a64351298c..632db6f4c981 100644
--- a/packages/ui-components/style/icons/toolbar/tree-view.svg
+++ b/packages/ui-components/style/icons/toolbar/tree-view.svg
@@ -3,4 +3,4 @@
         <path d="M0 0h24v24H0z" fill="none"/>
         <path d="M22 11V3h-7v3H9V3H2v8h7V8h2v10h4v3h7v-8h-7v3h-2V8h2v3z"/>
     </g>
-</svg>
\ No newline at end of file
+</svg>
diff --git a/packages/ui-components/style/iconsalt.css b/packages/ui-components/style/iconsalt.css
index c47d7e361e44..44dba2133dbd 100644
--- a/packages/ui-components/style/iconsalt.css
+++ b/packages/ui-components/style/iconsalt.css
@@ -11,15 +11,19 @@
 .jp-icon-alt .jp-icon0[fill] {
   fill: var(--jp-layout-color0);
 }
+
 .jp-icon-alt .jp-icon1[fill] {
   fill: var(--jp-layout-color1);
 }
+
 .jp-icon-alt .jp-icon2[fill] {
   fill: var(--jp-layout-color2);
 }
+
 .jp-icon-alt .jp-icon3[fill] {
   fill: var(--jp-layout-color3);
 }
+
 .jp-icon-alt .jp-icon4[fill] {
   fill: var(--jp-layout-color4);
 }
@@ -27,15 +31,19 @@
 .jp-icon-alt .jp-icon0[stroke] {
   stroke: var(--jp-layout-color0);
 }
+
 .jp-icon-alt .jp-icon1[stroke] {
   stroke: var(--jp-layout-color1);
 }
+
 .jp-icon-alt .jp-icon2[stroke] {
   stroke: var(--jp-layout-color2);
 }
+
 .jp-icon-alt .jp-icon3[stroke] {
   stroke: var(--jp-layout-color3);
 }
+
 .jp-icon-alt .jp-icon4[stroke] {
   stroke: var(--jp-layout-color4);
 }
@@ -44,15 +52,19 @@
 .jp-icon-alt .jp-icon-accent0[fill] {
   fill: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-alt .jp-icon-accent1[fill] {
   fill: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-alt .jp-icon-accent2[fill] {
   fill: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-alt .jp-icon-accent3[fill] {
   fill: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-alt .jp-icon-accent4[fill] {
   fill: var(--jp-inverse-layout-color4);
 }
@@ -60,15 +72,19 @@
 .jp-icon-alt .jp-icon-accent0[stroke] {
   stroke: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-alt .jp-icon-accent1[stroke] {
   stroke: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-alt .jp-icon-accent2[stroke] {
   stroke: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-alt .jp-icon-accent3[stroke] {
   stroke: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-alt .jp-icon-accent4[stroke] {
   stroke: var(--jp-inverse-layout-color4);
 }
diff --git a/packages/ui-components/style/iconshover.css b/packages/ui-components/style/iconshover.css
index c000c88736d8..9d1a48b04c20 100644
--- a/packages/ui-components/style/iconshover.css
+++ b/packages/ui-components/style/iconshover.css
@@ -19,15 +19,19 @@
 .jp-icon-hover :hover .jp-icon0-hover[fill] {
   fill: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-hover :hover .jp-icon1-hover[fill] {
   fill: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-hover :hover .jp-icon2-hover[fill] {
   fill: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-hover :hover .jp-icon3-hover[fill] {
   fill: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-hover :hover .jp-icon4-hover[fill] {
   fill: var(--jp-inverse-layout-color4);
 }
@@ -35,15 +39,19 @@
 .jp-icon-hover :hover .jp-icon0-hover[stroke] {
   stroke: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-hover :hover .jp-icon1-hover[stroke] {
   stroke: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-hover :hover .jp-icon2-hover[stroke] {
   stroke: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-hover :hover .jp-icon3-hover[stroke] {
   stroke: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-hover :hover .jp-icon4-hover[stroke] {
   stroke: var(--jp-inverse-layout-color4);
 }
@@ -52,15 +60,19 @@
 .jp-icon-hover :hover .jp-icon-accent0-hover[fill] {
   fill: var(--jp-layout-color0);
 }
+
 .jp-icon-hover :hover .jp-icon-accent1-hover[fill] {
   fill: var(--jp-layout-color1);
 }
+
 .jp-icon-hover :hover .jp-icon-accent2-hover[fill] {
   fill: var(--jp-layout-color2);
 }
+
 .jp-icon-hover :hover .jp-icon-accent3-hover[fill] {
   fill: var(--jp-layout-color3);
 }
+
 .jp-icon-hover :hover .jp-icon-accent4-hover[fill] {
   fill: var(--jp-layout-color4);
 }
@@ -68,15 +80,19 @@
 .jp-icon-hover :hover .jp-icon-accent0-hover[stroke] {
   stroke: var(--jp-layout-color0);
 }
+
 .jp-icon-hover :hover .jp-icon-accent1-hover[stroke] {
   stroke: var(--jp-layout-color1);
 }
+
 .jp-icon-hover :hover .jp-icon-accent2-hover[stroke] {
   stroke: var(--jp-layout-color2);
 }
+
 .jp-icon-hover :hover .jp-icon-accent3-hover[stroke] {
   stroke: var(--jp-layout-color3);
 }
+
 .jp-icon-hover :hover .jp-icon-accent4-hover[stroke] {
   stroke: var(--jp-layout-color4);
 }
@@ -98,15 +114,19 @@
 .jp-icon-hover.jp-icon-alt :hover .jp-icon0-hover[fill] {
   fill: var(--jp-layout-color0);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon1-hover[fill] {
   fill: var(--jp-layout-color1);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon2-hover[fill] {
   fill: var(--jp-layout-color2);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon3-hover[fill] {
   fill: var(--jp-layout-color3);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon4-hover[fill] {
   fill: var(--jp-layout-color4);
 }
@@ -114,15 +134,19 @@
 .jp-icon-hover.jp-icon-alt :hover .jp-icon0-hover[stroke] {
   stroke: var(--jp-layout-color0);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon1-hover[stroke] {
   stroke: var(--jp-layout-color1);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon2-hover[stroke] {
   stroke: var(--jp-layout-color2);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon3-hover[stroke] {
   stroke: var(--jp-layout-color3);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon4-hover[stroke] {
   stroke: var(--jp-layout-color4);
 }
@@ -131,15 +155,19 @@
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent0-hover[fill] {
   fill: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent1-hover[fill] {
   fill: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent2-hover[fill] {
   fill: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent3-hover[fill] {
   fill: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent4-hover[fill] {
   fill: var(--jp-inverse-layout-color4);
 }
@@ -147,15 +175,19 @@
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent0-hover[stroke] {
   stroke: var(--jp-inverse-layout-color0);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent1-hover[stroke] {
   stroke: var(--jp-inverse-layout-color1);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent2-hover[stroke] {
   stroke: var(--jp-inverse-layout-color2);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent3-hover[stroke] {
   stroke: var(--jp-inverse-layout-color3);
 }
+
 .jp-icon-hover.jp-icon-alt :hover .jp-icon-accent4-hover[stroke] {
   stroke: var(--jp-inverse-layout-color4);
 }
diff --git a/packages/apputils/style/iframe.css b/packages/ui-components/style/iframe.css
similarity index 85%
rename from packages/apputils/style/iframe.css
rename to packages/ui-components/style/iframe.css
index 63bdaa07e3f7..a26405701a6a 100644
--- a/packages/apputils/style/iframe.css
+++ b/packages/ui-components/style/iframe.css
@@ -13,7 +13,7 @@
 }
 
 /*
-When drag events occur, `p-mod-override-cursor` is added to the body.
+When drag events occur, `lm-mod-override-cursor` is added to the body.
 Because iframes steal all cursor events, the following two rules are necessary
 to suppress pointer events while resize drags are occurring. There may be a
 better solution to this problem.
@@ -22,7 +22,7 @@ body.lm-mod-override-cursor .jp-IFrame {
   position: relative;
 }
 
-body.lm-mod-override-cursor .jp-IFrame:before {
+body.lm-mod-override-cursor .jp-IFrame::before {
   content: '';
   position: absolute;
   top: 0;
diff --git a/packages/ui-components/style/index.css b/packages/ui-components/style/index.css
index 964b452eec12..175c3e71145f 100644
--- a/packages/ui-components/style/index.css
+++ b/packages/ui-components/style/index.css
@@ -4,8 +4,5 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-@import url('~@blueprintjs/core/lib/css/blueprint.css');
-@import url('~@blueprintjs/select/lib/css/blueprint-select.css');
 @import url('~@lumino/widgets/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/ui-components/style/index.js b/packages/ui-components/style/index.js
index 0368adc4d7c6..bdc940d94bde 100644
--- a/packages/ui-components/style/index.js
+++ b/packages/ui-components/style/index.js
@@ -4,8 +4,6 @@
 |----------------------------------------------------------------------------*/
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
-import '@blueprintjs/core/lib/css/blueprint.css';
-import '@blueprintjs/select/lib/css/blueprint-select.css';
 import '@lumino/widgets/style/index.js';
 
 import './base.css';
diff --git a/packages/ui-components/style/rjsfTemplates.css b/packages/ui-components/style/rjsfTemplates.css
new file mode 100644
index 000000000000..971ac7d0ee5b
--- /dev/null
+++ b/packages/ui-components/style/rjsfTemplates.css
@@ -0,0 +1,239 @@
+/*-----------------------------------------------------------------------------
+| Copyright (c) Jupyter Development Team.
+| Distributed under the terms of the Modified BSD License.
+|----------------------------------------------------------------------------*/
+
+.jp-FormGroup-content fieldset {
+  border: none;
+  padding: 0;
+  min-width: 0;
+  width: 100%;
+}
+
+/* stylelint-disable selector-max-type */
+
+.jp-FormGroup-content fieldset .jp-inputFieldWrapper > input,
+.jp-FormGroup-content fieldset .jp-inputFieldWrapper > select,
+.jp-FormGroup-content fieldset .jp-inputFieldWrapper > textarea {
+  font-size: var(--jp-content-font-size2);
+  border-color: var(--jp-input-border-color);
+  border-style: solid;
+  border-radius: var(--jp-border-radius);
+  border-width: 1px;
+  padding: 6px 8px;
+  background: none;
+  color: var(--jp-ui-font-color0);
+  height: inherit;
+}
+
+.jp-FormGroup-content .jp-inputFieldWrapper > select > option {
+  background-color: var(--jp-layout-color1);
+}
+
+.jp-FormGroup-content fieldset input[type='checkbox'] {
+  position: relative;
+  top: 2px;
+  margin-left: 0;
+}
+
+.jp-FormGroup-content button.jp-mod-styled {
+  cursor: pointer;
+}
+
+.jp-FormGroup-content .checkbox label {
+  cursor: pointer;
+  font-size: var(--jp-content-font-size1);
+}
+
+.jp-FormGroup-content .jp-root > fieldset > legend {
+  display: none;
+}
+
+.jp-FormGroup-content .jp-root > fieldset > p {
+  display: none;
+}
+
+/** copy of `input.jp-mod-styled:focus` style */
+.jp-FormGroup-content fieldset input:focus,
+.jp-FormGroup-content fieldset select:focus {
+  -moz-outline-radius: unset;
+  outline: var(--jp-border-width) solid var(--md-blue-500);
+  outline-offset: -1px;
+  box-shadow: inset 0 0 4px var(--md-blue-300);
+}
+
+.jp-FormGroup-content fieldset input:hover:not(:focus),
+.jp-FormGroup-content fieldset select:hover:not(:focus) {
+  background-color: var(--jp-border-color2);
+}
+
+/* stylelint-enable selector-max-type */
+
+.jp-FormGroup-content .checkbox .field-description {
+  /* Disable default description field for checkbox:
+   because other widgets do not have description fields,
+   we add descriptions to each widget on the field level.
+  */
+  display: none;
+}
+
+.jp-FormGroup-content #root__description {
+  display: none;
+}
+
+.jp-FormGroup-content .jp-modifiedIndicator {
+  width: 5px;
+  background-color: var(--jp-brand-color2);
+  margin-top: 0;
+  margin-left: calc(var(--jp-private-settingeditor-modifier-indent) * -1);
+  flex-shrink: 0;
+}
+
+.jp-FormGroup-content .jp-modifiedIndicator.jp-errorIndicator {
+  background-color: var(--jp-error-color0);
+  margin-right: 0.5em;
+}
+
+/* RJSF ARRAY style */
+
+.jp-arrayFieldWrapper legend {
+  font-size: var(--jp-content-font-size2);
+  color: var(--jp-ui-font-color0);
+  flex-basis: 100%;
+  padding: 4px 0;
+  font-weight: var(--jp-content-heading-font-weight);
+  border-bottom: 1px solid var(--jp-border-color2);
+}
+
+.jp-arrayFieldWrapper .field-description {
+  padding: 4px 0;
+  white-space: pre-wrap;
+}
+
+.jp-arrayFieldWrapper .array-item {
+  width: 100%;
+  border: 1px solid var(--jp-border-color2);
+  border-radius: 4px;
+  margin: 4px;
+}
+
+.jp-ArrayOperations {
+  display: flex;
+  margin-left: 8px;
+}
+
+.jp-ArrayOperationsButton {
+  margin: 2px;
+}
+
+.jp-ArrayOperationsButton .jp-icon3[fill] {
+  fill: var(--jp-ui-font-color0);
+}
+
+button.jp-ArrayOperationsButton.jp-mod-styled:disabled {
+  cursor: not-allowed;
+  opacity: 0.5;
+}
+
+/* RJSF form validation error */
+
+.jp-FormGroup-content .validationErrors {
+  color: var(--jp-error-color0);
+}
+
+/* Hide panel level error as duplicated the field level error */
+.jp-FormGroup-content .panel.errors {
+  display: none;
+}
+
+/* RJSF normal content (settings-editor) */
+
+.jp-FormGroup-contentNormal {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+}
+
+.jp-FormGroup-contentNormal .jp-FormGroup-contentItem {
+  margin-left: 7px;
+  color: var(--jp-ui-font-color0);
+}
+
+.jp-FormGroup-contentNormal .jp-FormGroup-description {
+  flex-basis: 100%;
+  padding: 4px 7px;
+}
+
+.jp-FormGroup-contentNormal .jp-FormGroup-default {
+  flex-basis: 100%;
+  padding: 4px 7px;
+}
+
+.jp-FormGroup-contentNormal .jp-FormGroup-fieldLabel {
+  font-size: var(--jp-content-font-size1);
+  font-weight: normal;
+  min-width: 120px;
+}
+
+.jp-FormGroup-contentNormal fieldset:not(:first-child) {
+  margin-left: 7px;
+}
+
+.jp-FormGroup-contentNormal .field-array-of-string .array-item {
+  /* Display `jp-ArrayOperations` buttons side-by-side with content except
+    for small screens where flex-wrap will place them one below the other.
+  */
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+}
+
+.jp-FormGroup-contentNormal .jp-objectFieldWrapper .form-group {
+  padding: 2px 8px 2px var(--jp-private-settingeditor-modifier-indent);
+  margin-top: 2px;
+}
+
+/* RJSF compact content (metadata-form) */
+
+.jp-FormGroup-content.jp-FormGroup-contentCompact {
+  width: 100%;
+}
+
+.jp-FormGroup-contentCompact .form-group {
+  display: flex;
+  padding: 0.5em 0.2em 0.5em 0;
+}
+
+.jp-FormGroup-contentCompact
+  .jp-FormGroup-compactTitle
+  .jp-FormGroup-description {
+  font-size: var(--jp-ui-font-size1);
+  color: var(--jp-ui-font-color2);
+}
+
+.jp-FormGroup-contentCompact .jp-FormGroup-fieldLabel {
+  padding-bottom: 0.3em;
+}
+
+.jp-FormGroup-contentCompact .jp-inputFieldWrapper .form-control {
+  width: 100%;
+  box-sizing: border-box;
+}
+
+.jp-FormGroup-contentCompact .jp-arrayFieldWrapper .jp-FormGroup-compactTitle {
+  padding-bottom: 7px;
+}
+
+.jp-FormGroup-contentCompact
+  .jp-objectFieldWrapper
+  .jp-objectFieldWrapper
+  .form-group {
+  padding: 2px 8px 2px var(--jp-private-settingeditor-modifier-indent);
+  margin-top: 2px;
+}
+
+.jp-FormGroup-contentCompact ul.error-detail {
+  margin-block-start: 0.5em;
+  margin-block-end: 0.5em;
+  padding-inline-start: 1em;
+}
diff --git a/packages/ui-components/style/sidepanel.css b/packages/ui-components/style/sidepanel.css
new file mode 100644
index 000000000000..553a6ab71d38
--- /dev/null
+++ b/packages/ui-components/style/sidepanel.css
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+.jp-SidePanel {
+  display: flex;
+  flex-direction: column;
+  min-width: var(--jp-sidebar-min-width);
+  overflow-y: auto;
+  color: var(--jp-ui-font-color1);
+  background: var(--jp-layout-color1);
+  font-size: var(--jp-ui-font-size1);
+}
+
+.jp-SidePanel-header {
+  flex: 0 0 auto;
+  display: flex;
+  border-bottom: var(--jp-border-width) solid var(--jp-border-color2);
+  font-size: var(--jp-ui-font-size0);
+  font-weight: 600;
+  letter-spacing: 1px;
+  margin: 0;
+  padding: 2px;
+  text-transform: uppercase;
+}
+
+.jp-SidePanel-toolbar {
+  flex: 0 0 auto;
+}
+
+.jp-SidePanel-content {
+  flex: 1 1 auto;
+}
+
+.jp-SidePanel-toolbar,
+.jp-AccordionPanel-toolbar {
+  height: var(--jp-private-toolbar-height);
+}
+
+.jp-SidePanel-toolbar.jp-Toolbar-micro {
+  display: none;
+}
+
+.lm-AccordionPanel .jp-AccordionPanel-title {
+  box-sizing: border-box;
+  line-height: 25px;
+  margin: 0;
+  display: flex;
+  align-items: center;
+  background: var(--jp-layout-color1);
+  color: var(--jp-ui-font-color1);
+  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
+  box-shadow: var(--jp-toolbar-box-shadow);
+  font-size: var(--jp-ui-font-size0);
+}
+
+.jp-AccordionPanel-title {
+  cursor: pointer;
+  user-select: none;
+  -moz-user-select: none;
+  -webkit-user-select: none;
+  text-transform: uppercase;
+}
+
+.lm-AccordionPanel[data-orientation='horizontal'] > .jp-AccordionPanel-title {
+  /* Title is rotated for horizontal accordion panel using CSS */
+  display: block;
+  transform-origin: top left;
+  transform: rotate(-90deg) translate(-100%);
+}
+
+.jp-AccordionPanel-title .lm-AccordionPanel-titleLabel {
+  user-select: none;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  overflow: hidden;
+}
+
+.jp-AccordionPanel-title .lm-AccordionPanel-titleCollapser {
+  transform: rotate(-90deg);
+  margin: auto 0;
+  height: 16px;
+}
+
+.jp-AccordionPanel-title.lm-mod-expanded .lm-AccordionPanel-titleCollapser {
+  transform: rotate(0deg);
+}
+
+.lm-AccordionPanel .jp-AccordionPanel-toolbar {
+  background: none;
+  box-shadow: none;
+  border: none;
+  margin-left: auto;
+}
+
+.lm-AccordionPanel .lm-SplitPanel-handle:hover {
+  background: var(--jp-layout-color3);
+}
+
+.jp-text-truncated {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
diff --git a/packages/apputils/style/spinner.css b/packages/ui-components/style/spinner.css
similarity index 89%
rename from packages/apputils/style/spinner.css
rename to packages/ui-components/style/spinner.css
index ee5743ac91f6..9bb0774d099f 100644
--- a/packages/apputils/style/spinner.css
+++ b/packages/ui-components/style/spinner.css
@@ -32,21 +32,23 @@
     rgba(255, 255, 255, 0) 42%
   );
   position: relative;
-  animation: load3 1s infinite linear, fadeIn 1s;
+  animation:
+    load3 1s infinite linear,
+    fadeIn 1s;
 }
 
-.jp-SpinnerContent:before {
+.jp-SpinnerContent::before {
   width: 50%;
   height: 50%;
   background: #f37626;
-  border-radius: 100% 0 0 0;
+  border-radius: 100% 0 0;
   position: absolute;
   top: 0;
   left: 0;
   content: '';
 }
 
-.jp-SpinnerContent:after {
+.jp-SpinnerContent::after {
   background: var(--jp-layout-color0);
   width: 75%;
   height: 75%;
@@ -64,6 +66,7 @@
   0% {
     opacity: 0;
   }
+
   100% {
     opacity: 1;
   }
@@ -73,6 +76,7 @@
   0% {
     transform: rotate(0deg);
   }
+
   100% {
     transform: rotate(360deg);
   }
diff --git a/packages/apputils/style/styling.css b/packages/ui-components/style/styling.css
similarity index 87%
rename from packages/apputils/style/styling.css
rename to packages/ui-components/style/styling.css
index de5146bb2841..0ab8897f0ac6 100644
--- a/packages/apputils/style/styling.css
+++ b/packages/ui-components/style/styling.css
@@ -12,7 +12,7 @@ button.jp-mod-styled {
   text-align: center;
   line-height: 32px;
   height: 32px;
-  padding: 0px 12px;
+  padding: 0 12px;
   letter-spacing: 0.8px;
   outline: none;
   appearance: none;
@@ -47,29 +47,20 @@ input.jp-mod-styled:focus {
   box-shadow: inset 0 0 4px var(--md-blue-300);
 }
 
-.jp-FileDialog-Checkbox {
-  margin-top: 35px;
-  display: flex;
-  flex-direction: row;
-  align-items: end;
-  width: 100%;
-}
-
-.jp-FileDialog-Checkbox > label {
-  flex: 1 1 auto;
-}
-
 .jp-select-wrapper {
   display: flex;
   position: relative;
   flex-direction: column;
   padding: 1px;
   background-color: var(--jp-layout-color1);
-  height: 28px;
   box-sizing: border-box;
   margin-bottom: 12px;
 }
 
+.jp-select-wrapper:not(.multiple) {
+  height: 28px;
+}
+
 .jp-select-wrapper.jp-mod-focused select.jp-mod-styled {
   border: var(--jp-border-width) solid var(--jp-input-active-border-color);
   box-shadow: var(--jp-input-box-shadow);
@@ -77,25 +68,32 @@ input.jp-mod-styled:focus {
 }
 
 select.jp-mod-styled:hover {
-  background-color: var(--jp-layout-color1);
   cursor: pointer;
   color: var(--jp-ui-font-color0);
   background-color: var(--jp-input-hover-background);
-  box-shadow: inset 0 0px 1px rgba(0, 0, 0, 0.5);
+  box-shadow: inset 0 0 1px rgba(0, 0, 0, 0.5);
 }
 
 select.jp-mod-styled {
   flex: 1 1 auto;
-  height: 32px;
   width: 100%;
   font-size: var(--jp-ui-font-size2);
   background: var(--jp-input-background);
   color: var(--jp-ui-font-color0);
   padding: 0 25px 0 8px;
   border: var(--jp-border-width) solid var(--jp-input-border-color);
-  border-radius: 0px;
+  border-radius: 0;
   outline: none;
   appearance: none;
   -webkit-appearance: none;
   -moz-appearance: none;
 }
+
+select.jp-mod-styled:not([multiple]) {
+  height: 32px;
+}
+
+select.jp-mod-styled[multiple] {
+  max-height: 200px;
+  overflow-y: auto;
+}
diff --git a/packages/ui-components/style/switch.css b/packages/ui-components/style/switch.css
index 2ccc0f6ccdc5..5e0cc750d40a 100644
--- a/packages/ui-components/style/switch.css
+++ b/packages/ui-components/style/switch.css
@@ -21,6 +21,7 @@
 
 .jp-switch-label {
   margin-right: 5px;
+  font-family: var(--jp-ui-font-family);
 }
 
 .jp-switch-track {
@@ -40,7 +41,7 @@
   height: 10px;
   width: 10px;
   margin: 3px;
-  left: 0px;
+  left: 0;
   background-color: var(--jp-ui-inverse-font-color1);
   -webkit-transition: 0.4s;
   transition: 0.4s;
diff --git a/packages/apputils/style/toolbar.css b/packages/ui-components/style/toolbar.css
similarity index 94%
rename from packages/apputils/style/toolbar.css
rename to packages/ui-components/style/toolbar.css
index d05e60e5d984..aa06951a9766 100644
--- a/packages/apputils/style/toolbar.css
+++ b/packages/ui-components/style/toolbar.css
@@ -60,8 +60,8 @@ div.jp-ToolbarButton {
   appearance: none;
   -webkit-appearance: none;
   -moz-appearance: none;
-  padding: 0px;
-  margin: 0px;
+  padding: 0;
+  margin: 0;
 }
 
 button.jp-ToolbarButtonComponent {
@@ -72,8 +72,8 @@ button.jp-ToolbarButtonComponent {
   appearance: none;
   -webkit-appearance: none;
   -moz-appearance: none;
-  padding: 0px 6px;
-  margin: 0px;
+  padding: 0 6px;
+  margin: 0;
   height: 24px;
   border-radius: var(--jp-border-radius);
   display: flex;
@@ -88,8 +88,8 @@ button.jp-ToolbarButtonComponent:disabled {
   opacity: 0.4;
 }
 
-button.jp-ToolbarButtonComponent span {
-  padding: 0px;
+button.jp-ToolbarButtonComponent > span {
+  padding: 0;
   flex: 0 0 auto;
 }
 
@@ -98,6 +98,7 @@ button.jp-ToolbarButtonComponent .jp-ToolbarButtonComponent-label {
   line-height: 100%;
   padding-left: 2px;
   color: var(--jp-ui-font-color1);
+  font-family: var(--jp-ui-font-family);
 }
 
 #jp-main-dock-panel[data-mode='single-document']
diff --git a/packages/ui-components/style/unused/jupyterlab.svg b/packages/ui-components/style/unused/jupyterlab.svg
index 347251360aa0..6e6c65f1d85b 100644
--- a/packages/ui-components/style/unused/jupyterlab.svg
+++ b/packages/ui-components/style/unused/jupyterlab.svg
@@ -105,4 +105,4 @@
             <path d="M1832.47628,326.153846 L1869.45866,326.153846 L1869.45866,28.0084615 L1832.47628,28.0084615 L1832.47628,326.153846 Z M2085.04506,326.153846 C2082.52354,312.296385 2081.68303,295.079538 2081.68303,277.442769 L2081.68303,201.436692 C2081.68303,160.704154 2066.55387,118.291923 2004.35623,118.291923 C1978.72071,118.291923 1954.34596,125.430615 1937.53578,136.348615 L1945.94087,160.704154 C1960.22952,151.465846 1979.98147,145.586923 1998.89292,145.586923 C2040.4981,145.586923 2045.1209,175.821385 2045.1209,192.618308 L2045.1209,196.817538 C1966.53333,196.397615 1922.82688,223.272692 1922.82688,272.403692 C1922.82688,301.798308 1943.8396,330.773 1985.02453,330.773 C2014.02208,330.773 2035.8753,316.495615 2047.22217,300.538538 L2048.48293,300.538538 L2051.42471,326.153846 L2085.04506,326.153846 Z M2045.96141,257.706385 C2045.96141,261.485692 2045.1209,265.684923 2043.86014,269.464231 C2037.97657,286.681077 2021.1664,303.478 1994.69038,303.478 C1975.77893,303.478 1959.80926,292.140077 1959.80926,268.204462 C1959.80926,228.731692 2005.61699,221.593 2045.96141,222.432846 L2045.96141,257.706385 Z M2178.7577,326.153846 L2180.43872,292.56 L2181.69948,292.56 C2196.82864,319.435077 2220.36289,330.773 2249.78069,330.773 C2295.16816,330.773 2340.97589,294.659615 2340.97589,222.012923 C2341.39614,160.284231 2305.67452,118.291923 2255.244,118.291923 C2222.46416,118.291923 2198.92991,132.989231 2185.90203,155.665077 L2185.06152,155.665077 L2185.06152,28.0084615 L2148.49939,28.0084615 L2148.49939,273.663462 C2148.49939,291.720154 2147.65888,312.296385 2146.81837,326.153846 L2178.7577,326.153846 Z M2185.06152,208.155462 C2185.06152,202.276538 2186.32228,197.237462 2187.16279,193.038231 C2194.72737,164.903385 2218.26161,147.686538 2243.47687,147.686538 C2282.98078,147.686538 2303.9935,182.540154 2303.9935,223.272692 C2303.9935,269.884154 2280.87951,301.378385 2242.21611,301.378385 C2215.31983,301.378385 2193.88686,283.741615 2186.74254,258.126308 C2185.90203,253.927077 2185.06152,249.307923 2185.06152,244.688769 L2185.06152,208.155462 Z" id="jupyterlab" fill="#F37726"></path>
         </g>
     </g>
-</svg>
\ No newline at end of file
+</svg>
diff --git a/packages/ui-components/style/windowedlist.css b/packages/ui-components/style/windowedlist.css
new file mode 100644
index 000000000000..5d132b01632c
--- /dev/null
+++ b/packages/ui-components/style/windowedlist.css
@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+.jp-WindowedPanel-outer {
+  position: relative;
+  overflow-y: auto;
+}
+
+.jp-WindowedPanel-inner {
+  position: relative;
+}
+
+.jp-WindowedPanel-window {
+  position: absolute;
+  left: 0;
+  right: 0;
+  overflow: visible;
+}
diff --git a/packages/ui-components/test/hoverbox.spec.ts b/packages/ui-components/test/hoverbox.spec.ts
new file mode 100644
index 000000000000..829fbe6685eb
--- /dev/null
+++ b/packages/ui-components/test/hoverbox.spec.ts
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import { HoverBox } from '@jupyterlab/ui-components';
+
+function createDomRect(options: {
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+}): DOMRect {
+  return {
+    ...options,
+    bottom: options.x + options.height,
+    top: options.y,
+    left: options.x,
+    right: options.x + options.width,
+    toJSON: () => 'DummyDOMRect'
+  };
+}
+
+function createPointAnchor(options: { x: number; y: number }): DOMRect {
+  return createDomRect({ ...options, width: 0, height: 0 });
+}
+
+describe('@jupyterlab/ui-components', () => {
+  describe('HoverBox.setGeometry()', () => {
+    let host: HTMLElement;
+    let node: HTMLElement;
+    let anchor: DOMRect;
+    let defaults: () => {
+      host: HTMLElement;
+      node: HTMLElement;
+      anchor: DOMRect;
+      maxHeight: number;
+      minHeight: number;
+    };
+    beforeEach(() => {
+      host = document.createElement('div');
+      node = document.createElement('div');
+      window.innerHeight = 100;
+      window.innerWidth = 100;
+      anchor = createPointAnchor({
+        x: 50,
+        y: 50
+      });
+      defaults = () => {
+        return { host, anchor, node, maxHeight: 100, minHeight: 1 };
+      };
+      jest.spyOn(host, 'getBoundingClientRect').mockReturnValue(
+        createDomRect({
+          x: 20,
+          y: 20,
+          width: 60, // right = 80
+          height: 60 // bottom = 80
+        })
+      );
+    });
+
+    it('should position node next to the anchor', () => {
+      jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+        return createDomRect({
+          x: parseInt(node.style.left, 10),
+          y: parseInt(node.style.top, 10),
+          width: 10,
+          height: 0
+        });
+      });
+
+      HoverBox.setGeometry(defaults());
+      expect(node.style.left).toBe('50px');
+      expect(node.style.top).toBe('50px');
+    });
+
+    it('should position node within the window', () => {
+      // anchor position (50) + node width width (60) exceeds window width (100)
+      jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+        return createDomRect({
+          x: parseInt(node.style.left, 10),
+          y: parseInt(node.style.top, 10),
+          width: 60,
+          height: 1
+        });
+      });
+
+      HoverBox.setGeometry(defaults());
+      expect(node.style.left).toBe('40px');
+    });
+
+    describe('outOfViewDisplay = `stick-outside`', () => {
+      it('should keep the left edge of the node within the host', () => {
+        jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+          return createDomRect({
+            x: parseInt(node.style.left, 10),
+            y: parseInt(node.style.top, 10),
+            width: 10,
+            height: 0
+          });
+        });
+
+        anchor = createPointAnchor({
+          x: 70,
+          y: 50
+        });
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            right: 'stick-outside'
+          }
+        });
+        expect(node.style.left).toBe('70px');
+
+        anchor = createPointAnchor({
+          x: 85,
+          y: 50
+        });
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            right: 'stick-outside'
+          }
+        });
+        expect(node.style.left).toBe('80px');
+      });
+    });
+
+    describe('outOfViewDisplay = `stick-inside`', () => {
+      it('should keep the right edge of the node within the host', () => {
+        jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+          return createDomRect({
+            x: parseInt(node.style.left, 10),
+            y: parseInt(node.style.top, 10),
+            width: 10,
+            height: 0
+          });
+        });
+
+        anchor = createPointAnchor({
+          x: 85,
+          y: 50
+        });
+
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            right: 'stick-inside'
+          }
+        });
+        // host right edge (80px) - node width (10px)
+        expect(node.style.left).toBe('70px');
+      });
+
+      it('should also work when adjusting for window right edge', () => {
+        // anchor position (50) + node width width (60) exceeds window right edge (100)
+        jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+          return createDomRect({
+            x: parseInt(node.style.left, 10),
+            y: parseInt(node.style.top, 10),
+            width: 60,
+            height: 1
+          });
+        });
+
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            right: 'stick-inside'
+          }
+        });
+        // host right edge (80px) - node width (60px)
+        expect(node.style.left).toBe('20px');
+      });
+
+      it('should keep the left edge of the node within the host', () => {
+        jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+          return createDomRect({
+            x: parseInt(node.style.left, 10),
+            y: parseInt(node.style.top, 10),
+            width: 10,
+            height: 0
+          });
+        });
+
+        anchor = createPointAnchor({
+          x: 15,
+          y: 50
+        });
+
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            left: 'stick-inside'
+          }
+        });
+        // host left edge (20px)
+        expect(node.style.left).toBe('20px');
+      });
+
+      it('should also work when adjusting for window left edge', () => {
+        anchor = createPointAnchor({
+          x: -60,
+          y: 50
+        });
+        // anchor position (-60) + node width width (30) exceeds window left edge (0)
+        jest.spyOn(node, 'getBoundingClientRect').mockImplementation(() => {
+          return createDomRect({
+            x: parseInt(node.style.left, 10),
+            y: parseInt(node.style.top, 10),
+            width: 30,
+            height: 1
+          });
+        });
+
+        HoverBox.setGeometry({
+          ...defaults(),
+          outOfViewDisplay: {
+            left: 'stick-inside'
+          }
+        });
+        // host left edge (20px)
+        expect(node.style.left).toBe('20px');
+      });
+    });
+  });
+});
diff --git a/packages/apputils/test/iframe.spec.ts b/packages/ui-components/test/iframe.spec.ts
similarity index 96%
rename from packages/apputils/test/iframe.spec.ts
rename to packages/ui-components/test/iframe.spec.ts
index eb9464d6dbae..a09354159673 100644
--- a/packages/apputils/test/iframe.spec.ts
+++ b/packages/ui-components/test/iframe.spec.ts
@@ -1,9 +1,9 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { IFrame } from '@jupyterlab/apputils';
+import { IFrame } from '@jupyterlab/ui-components';
 
-describe('@jupyterlab/apputils', () => {
+describe('@jupyterlab/ui-components', () => {
   describe('IFrame', () => {
     describe('#constructor()', () => {
       it('should create a new iframe widget', () => {
diff --git a/packages/mainmenu/test/labmenu.spec.ts b/packages/ui-components/test/menu.spec.ts
similarity index 81%
rename from packages/mainmenu/test/labmenu.spec.ts
rename to packages/ui-components/test/menu.spec.ts
index c02ab33c9b70..0a371aec3e01 100644
--- a/packages/mainmenu/test/labmenu.spec.ts
+++ b/packages/ui-components/test/menu.spec.ts
@@ -1,15 +1,41 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { JupyterLabMenu } from '@jupyterlab/mainmenu';
+import { IRankedMenu, RankedMenu } from '@jupyterlab/ui-components';
 import { ArrayExt } from '@lumino/algorithm';
 import { CommandRegistry } from '@lumino/commands';
 import { Menu } from '@lumino/widgets';
 
-describe('@jupyterlab/mainmenu', () => {
-  describe('JupyterLabMenu', () => {
+describe('@jupyterlab/ui-components', () => {
+  describe('IRankedMenu', () => {
     let commands: CommandRegistry;
-    let menu: JupyterLabMenu;
+    const id = 'test-command';
+    const options: CommandRegistry.ICommandOptions = {
+      execute: jest.fn()
+    };
+
+    beforeAll(() => {
+      commands = new CommandRegistry();
+      commands.addCommand(id, options);
+    });
+    describe('#addItem', () => {
+      it('should return a disposable item', () => {
+        const menu = new RankedMenu({ commands }) as IRankedMenu;
+
+        const item = menu.addItem({ command: id });
+
+        expect(menu.items.length).toEqual(1);
+
+        item.dispose();
+
+        expect(menu.items.length).toEqual(0);
+      });
+    });
+  });
+
+  describe('RankedMenu', () => {
+    let commands: CommandRegistry;
+    let menu: RankedMenu;
 
     beforeAll(() => {
       commands = new CommandRegistry();
@@ -32,7 +58,7 @@ describe('@jupyterlab/mainmenu', () => {
     });
 
     beforeEach(() => {
-      menu = new JupyterLabMenu({ commands });
+      menu = new RankedMenu({ commands });
     });
 
     afterEach(() => {
@@ -41,16 +67,16 @@ describe('@jupyterlab/mainmenu', () => {
 
     describe('#constructor()', () => {
       it('should construct a new main menu', () => {
-        expect(menu).toBeInstanceOf(JupyterLabMenu);
+        expect(menu).toBeInstanceOf(RankedMenu);
         expect(menu).toBeInstanceOf(Menu);
       });
 
       it('should accept useSeparators as an option', () => {
-        const menu1 = new JupyterLabMenu({
+        const menu1 = new RankedMenu({
           commands,
           includeSeparators: false
         });
-        const menu2 = new JupyterLabMenu({ commands, includeSeparators: true });
+        const menu2 = new RankedMenu({ commands, includeSeparators: true });
         menu1.addGroup([{ command: 'run1' }, { command: 'run2' }]);
         menu2.addGroup([{ command: 'run1' }, { command: 'run2' }]);
 
@@ -59,12 +85,12 @@ describe('@jupyterlab/mainmenu', () => {
       });
 
       it('should accept rank as an option', () => {
-        const menu = new JupyterLabMenu({ commands, rank: 22 });
+        const menu = new RankedMenu({ commands, rank: 22 });
         expect(menu.rank).toEqual(22);
       });
 
       it('should have rank undefined by default', () => {
-        const menu = new JupyterLabMenu({ commands });
+        const menu = new RankedMenu({ commands });
         expect(menu.rank).toBeUndefined();
       });
     });
@@ -75,7 +101,7 @@ describe('@jupyterlab/mainmenu', () => {
           // eslint-disable-next-line @typescript-eslint/ban-ts-comment
           // @ts-ignore
           menu.rank = 42;
-        }).toThrowError();
+        }).toThrow();
       });
     });
 
diff --git a/packages/apputils/test/styling.spec.ts b/packages/ui-components/test/styling.spec.ts
similarity index 96%
rename from packages/apputils/test/styling.spec.ts
rename to packages/ui-components/test/styling.spec.ts
index 4df083531ed5..890c9e607cca 100644
--- a/packages/apputils/test/styling.spec.ts
+++ b/packages/ui-components/test/styling.spec.ts
@@ -1,11 +1,11 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { Styling } from '@jupyterlab/apputils';
+import { Styling } from '@jupyterlab/ui-components';
 import { h, VirtualDOM } from '@lumino/virtualdom';
 import { simulate } from 'simulate-event';
 
-describe('@jupyterlab/apputils', () => {
+describe('@jupyterlab/ui-components', () => {
   describe('Styling', () => {
     describe('.styleNode()', () => {
       it('should style descendant nodes for select, input and button', () => {
diff --git a/packages/ui-components/test/svg.d.ts b/packages/ui-components/test/svg.d.ts
index 52c76d82452d..90e4deda5555 100644
--- a/packages/ui-components/test/svg.d.ts
+++ b/packages/ui-components/test/svg.d.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-// Distributed under the terms of the Modified BSD License.
-
 // including this file in a package allows for the use of import statements
 // with svg files. Example: `import xSvg from 'path/xSvg.svg'`
 
diff --git a/packages/ui-components/test/tabbarsvg.spec.ts b/packages/ui-components/test/tabbarsvg.spec.ts
new file mode 100644
index 000000000000..b591e350c743
--- /dev/null
+++ b/packages/ui-components/test/tabbarsvg.spec.ts
@@ -0,0 +1,36 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import { TabBarSvg } from '@jupyterlab/ui-components';
+import { Title, Widget } from '@lumino/widgets';
+import { VirtualDOM } from '@lumino/virtualdom';
+
+describe('.Renderer', () => {
+  let title: Title<Widget>;
+
+  beforeEach(() => {
+    let owner = new Widget();
+    title = new Title({
+      owner,
+      label: 'foo',
+      closable: true,
+      iconClass: 'bar',
+      className: 'fizz',
+      caption: 'this is a caption'
+    });
+  });
+
+  describe('#renderCloseIcon()', () => {
+    it('should render the close icon and check the title element matches the title', () => {
+      let renderer = new TabBarSvg.Renderer();
+      let vNode = renderer.renderCloseIcon({
+        title,
+        current: true,
+        zIndex: 1
+      });
+      let icon = VirtualDOM.realize(vNode);
+      expect(icon.className).toContain('lm-TabBar-tabCloseIcon');
+      expect(icon.title).toEqual('Close ' + title.label);
+    });
+  });
+});
diff --git a/packages/ui-components/test/toolbar.spec.ts b/packages/ui-components/test/toolbar.spec.ts
new file mode 100644
index 000000000000..e1d2c17dd923
--- /dev/null
+++ b/packages/ui-components/test/toolbar.spec.ts
@@ -0,0 +1,658 @@
+// Copyright (c) Jupyter Development Team.
+// Distributed under the terms of the Modified BSD License.
+
+import {
+  blankIcon,
+  bugDotIcon,
+  bugIcon,
+  CommandToolbarButton,
+  jupyterIcon,
+  ReactiveToolbar,
+  Toolbar,
+  ToolbarButton
+} from '@jupyterlab/ui-components';
+import { framePromise, JupyterServer } from '@jupyterlab/testing';
+import { CommandRegistry } from '@lumino/commands';
+import { ReadonlyPartialJSONObject } from '@lumino/coreutils';
+import { PanelLayout, Widget } from '@lumino/widgets';
+import { simulate } from 'simulate-event';
+
+const server = new JupyterServer();
+
+beforeAll(async () => {
+  await server.start();
+}, 30000);
+
+afterAll(async () => {
+  await server.shutdown();
+});
+
+describe('@jupyterlab/ui-components', () => {
+  describe('CommandToolbarButton', () => {
+    let commands: CommandRegistry;
+    const id = 'test-command';
+    const options: CommandRegistry.ICommandOptions = {
+      execute: jest.fn()
+    };
+
+    beforeEach(() => {
+      commands = new CommandRegistry();
+    });
+
+    it('should render a command', async () => {
+      commands.addCommand(id, options);
+      const button = new CommandToolbarButton({
+        commands,
+        id
+      });
+
+      Widget.attach(button, document.body);
+      await framePromise();
+
+      expect(button.hasClass('jp-CommandToolbarButton')).toBe(true);
+      simulate(button.node.firstElementChild!, 'mousedown');
+      expect(options.execute).toHaveBeenCalledTimes(1);
+    });
+
+    it('should render the label command', async () => {
+      const label = 'This is a test label';
+      commands.addCommand(id, { ...options, label });
+      const button = new CommandToolbarButton({
+        commands,
+        id
+      });
+
+      Widget.attach(button, document.body);
+      await framePromise();
+
+      expect(button.node.textContent).toMatch(label);
+    });
+
+    it('should render the customized label command', async () => {
+      const label = 'This is a test label';
+      const buttonLabel = 'This is the button label';
+      commands.addCommand(id, { ...options, label });
+      const button = new CommandToolbarButton({
+        commands,
+        id,
+        label: buttonLabel
+      });
+
+      Widget.attach(button, document.body);
+      await framePromise();
+
+      expect(button.node.textContent).toMatch(buttonLabel);
+      expect(button.node.textContent).not.toMatch(label);
+    });
+
+    it('should render the icon command', async () => {
+      const icon = jupyterIcon;
+      commands.addCommand(id, { ...options, icon });
+      const button = new CommandToolbarButton({
+        commands,
+        id
+      });
+
+      Widget.attach(button, document.body);
+      await framePromise();
+
+      expect(button.node.getElementsByTagName('svg')[0].dataset.icon).toMatch(
+        icon.name
+      );
+    });
+
+    it('should render the customized icon command', async () => {
+      const icon = jupyterIcon;
+      const buttonIcon = blankIcon;
+      commands.addCommand(id, { ...options, icon });
+      const button = new CommandToolbarButton({
+        commands,
+        id,
+        icon: buttonIcon
+      });
+
+      Widget.attach(button, document.body);
+      await framePromise();
+
+      const iconSVG = button.node.getElementsByTagName('svg')[0];
+      expect(iconSVG.dataset.icon).toMatch(buttonIcon.name);
+      expect(iconSVG.dataset.icon).not.toMatch(icon.name);
+    });
+  });
+
+  describe('Toolbar', () => {
+    let widget: Toolbar<Widget>;
+
+    beforeEach(async () => {
+      widget = new Toolbar();
+    }, 30000);
+
+    afterEach(async () => {
+      widget.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should construct a new toolbar widget', () => {
+        const widget = new Toolbar();
+        expect(widget).toBeInstanceOf(Toolbar);
+      });
+
+      it('should add the `jp-Toolbar` class', () => {
+        const widget = new Toolbar();
+        expect(widget.hasClass('jp-Toolbar')).toBe(true);
+      });
+    });
+
+    describe('#names()', () => {
+      it('should get an ordered list the toolbar item names', () => {
+        widget.addItem('foo', new Widget());
+        widget.addItem('bar', new Widget());
+        widget.addItem('baz', new Widget());
+        expect(Array.from(widget.names())).toEqual(['foo', 'bar', 'baz']);
+      });
+    });
+
+    describe('#addItem()', () => {
+      it('should add an item to the toolbar', () => {
+        const item = new Widget();
+        expect(widget.addItem('test', item)).toBe(true);
+        expect(Array.from(widget.names())).toContain('test');
+      });
+
+      it('should add the `jp-Toolbar-item` class to the widget', () => {
+        const item = new Widget();
+        widget.addItem('test', item);
+        expect(item.hasClass('jp-Toolbar-item')).toBe(true);
+      });
+
+      it('should return false if the name is already used', () => {
+        widget.addItem('test', new Widget());
+        expect(widget.addItem('test', new Widget())).toBe(false);
+      });
+    });
+
+    describe('#insertItem()', () => {
+      it('should insert the item into the toolbar', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        widget.insertItem(1, 'c', new Widget());
+        expect(Array.from(widget.names())).toEqual(['a', 'c', 'b']);
+      });
+
+      it('should clamp the bounds', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        widget.insertItem(10, 'c', new Widget());
+        expect(Array.from(widget.names())).toEqual(['a', 'b', 'c']);
+      });
+    });
+
+    describe('#insertAfter()', () => {
+      it('should insert an item into the toolbar after `c`', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        widget.insertItem(1, 'c', new Widget());
+        widget.insertAfter('c', 'd', new Widget());
+        expect(Array.from(widget.names())).toEqual(['a', 'c', 'd', 'b']);
+      });
+
+      it('should return false if the target item does not exist', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        const value = widget.insertAfter('c', 'd', new Widget());
+        expect(value).toBe(false);
+      });
+    });
+
+    describe('#insertBefore()', () => {
+      it('should insert an item into the toolbar before `c`', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        widget.insertItem(1, 'c', new Widget());
+        widget.insertBefore('c', 'd', new Widget());
+        expect(Array.from(widget.names())).toEqual(['a', 'd', 'c', 'b']);
+      });
+
+      it('should return false if the target item does not exist', () => {
+        widget.addItem('a', new Widget());
+        widget.addItem('b', new Widget());
+        const value = widget.insertBefore('c', 'd', new Widget());
+        expect(value).toBe(false);
+      });
+    });
+
+    describe('.createFromCommand', () => {
+      const commands = new CommandRegistry();
+      const testLogCommandId = 'test:toolbar-log';
+      const logArgs: ReadonlyPartialJSONObject[] = [];
+      let enabled = false;
+      let toggled = true;
+      let visible = false;
+      commands.addCommand(testLogCommandId, {
+        execute: args => {
+          logArgs.push(args);
+        },
+        label: 'Test log command label',
+        caption: 'Test log command caption',
+        usage: 'Test log command usage',
+        iconClass: 'test-icon-class',
+        className: 'test-log-class',
+        isEnabled: () => enabled,
+        isToggled: () => toggled,
+        isVisible: () => visible
+      });
+
+      async function render(button: CommandToolbarButton) {
+        button.update();
+        await framePromise();
+        expect(button.renderPromise).toBeDefined();
+        await button.renderPromise;
+      }
+
+      it('should create a button', () => {
+        const button = new CommandToolbarButton({
+          commands,
+          id: testLogCommandId
+        });
+        expect(button).toBeInstanceOf(CommandToolbarButton);
+        button.dispose();
+      });
+
+      it('should add main class', async () => {
+        const button = new CommandToolbarButton({
+          commands,
+          id: testLogCommandId
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.classList.contains('test-log-class')).toBe(true);
+        button.dispose();
+      });
+
+      it('should add an icon with icon class and label', async () => {
+        const button = new CommandToolbarButton({
+          commands,
+          id: testLogCommandId
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.title).toBe('Test log command caption');
+        const iconNode = buttonNode.firstChild as HTMLElement;
+        expect(iconNode.classList.contains('test-icon-class')).toBe(true);
+        button.dispose();
+      });
+
+      it('should apply state classes', async () => {
+        enabled = false;
+        toggled = true;
+        visible = false;
+        const button = new CommandToolbarButton({
+          commands,
+          id: testLogCommandId
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.disabled).toBe(true);
+        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
+        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(true);
+        button.dispose();
+      });
+
+      it('should update state classes', async () => {
+        enabled = false;
+        toggled = true;
+        visible = false;
+        const button = new CommandToolbarButton({
+          commands,
+          id: testLogCommandId
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.disabled).toBe(true);
+        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
+        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(true);
+        enabled = true;
+        visible = true;
+        commands.notifyCommandChanged(testLogCommandId);
+        await framePromise();
+        await button.renderPromise;
+        expect(buttonNode.disabled).toBe(false);
+        expect(buttonNode.classList.contains('lm-mod-toggled')).toBe(true);
+        expect(buttonNode.classList.contains('lm-mod-hidden')).toBe(false);
+        enabled = false;
+        visible = false;
+        button.dispose();
+      });
+
+      it('should use the command label if no icon class/label', async () => {
+        const id = 'to-be-removed';
+        const cmd = commands.addCommand(id, {
+          execute: () => {
+            return;
+          },
+          label: 'Label-only button'
+        });
+        const button = new CommandToolbarButton({
+          commands,
+          id
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.textContent).toBe('Label-only button');
+        cmd.dispose();
+      });
+
+      it('should update the node content on command change event', async () => {
+        const id = 'to-be-removed';
+        let iconClassValue: string = '';
+        const cmd = commands.addCommand(id, {
+          execute: () => {
+            /* no op */
+          },
+          label: 'Label-only button',
+          iconClass: () => iconClassValue ?? ''
+        });
+        const button = new CommandToolbarButton({
+          commands,
+          id
+        });
+        await render(button);
+        const buttonNode = button.node.firstChild as HTMLButtonElement;
+        expect(buttonNode.textContent).toBe('Label-only button');
+        expect(buttonNode.classList.contains(iconClassValue)).toBe(false);
+
+        iconClassValue = 'updated-icon-class';
+        commands.notifyCommandChanged(id);
+        await render(button);
+        const iconNode = buttonNode.firstChild as HTMLElement;
+        expect(iconNode.classList.contains(iconClassValue)).toBe(true);
+        cmd.dispose();
+      });
+    });
+  });
+
+  describe('ReactiveToolbar', () => {
+    let toolbar: ReactiveToolbar;
+
+    beforeEach(() => {
+      toolbar = new ReactiveToolbar();
+      Widget.attach(toolbar, document.body);
+    });
+
+    afterEach(() => {
+      toolbar.dispose();
+    });
+
+    describe('#constructor()', () => {
+      it('should append a node to body for the pop-up', () => {
+        const popup = document.body.querySelector(
+          '.jp-Toolbar-responsive-popup'
+        );
+        expect(popup).toBeDefined();
+        expect(popup!.parentNode!.nodeName).toEqual('BODY');
+      });
+    });
+
+    describe('#addItem()', () => {
+      it('should insert item before the toolbar pop-up button', () => {
+        const w = new Widget();
+        toolbar.addItem('test', w);
+        expect(
+          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
+        ).toEqual((toolbar.layout as PanelLayout).widgets.length - 2);
+      });
+    });
+
+    describe('#insertItem()', () => {
+      it('should insert item before the toolbar pop-up button', () => {
+        const w = new Widget();
+        toolbar.insertItem(2, 'test', w);
+        expect(
+          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
+        ).toEqual((toolbar.layout as PanelLayout).widgets.length - 2);
+      });
+    });
+
+    describe('#insertAfter()', () => {
+      it('should not insert item after the toolbar pop-up button', () => {
+        const w = new Widget();
+        const r = toolbar.insertAfter('toolbar-popup-opener', 'test', w);
+        expect(r).toEqual(false);
+        expect(
+          (toolbar.layout as PanelLayout).widgets.findIndex(v => v === w)
+        ).toEqual(-1);
+      });
+    });
+  });
+
+  describe('ToolbarButton', () => {
+    describe('#constructor()', () => {
+      it('should accept no arguments', () => {
+        const widget = new ToolbarButton();
+        expect(widget).toBeInstanceOf(ToolbarButton);
+      });
+
+      it('should accept options', async () => {
+        const widget = new ToolbarButton({
+          className: 'foo',
+          iconClass: 'iconFoo',
+          onClick: () => {
+            return void 0;
+          },
+          tooltip: 'bar'
+        });
+        Widget.attach(widget, document.body);
+        await framePromise();
+        const button = widget.node.firstChild as HTMLElement;
+        expect(button.classList.contains('foo')).toBe(true);
+        expect(button.querySelector('.iconFoo')).toBeDefined();
+        expect(button.title).toBe('bar');
+      });
+    });
+
+    describe('#dispose()', () => {
+      it('should dispose of the resources used by the widget', () => {
+        const button = new ToolbarButton();
+        button.dispose();
+        expect(button.isDisposed).toBe(true);
+      });
+
+      it('should be safe to call more than once', () => {
+        const button = new ToolbarButton();
+        button.dispose();
+        button.dispose();
+        expect(button.isDisposed).toBe(true);
+      });
+    });
+
+    describe('#handleEvent()', () => {
+      describe('click', () => {
+        it('should activate the callback', async () => {
+          let called = false;
+          const button = new ToolbarButton({
+            onClick: () => {
+              called = true;
+            }
+          });
+          Widget.attach(button, document.body);
+          await framePromise();
+          simulate(button.node.firstChild as HTMLElement, 'mousedown');
+          expect(called).toBe(true);
+          button.dispose();
+        });
+      });
+      describe('keydown', () => {
+        it('Enter should activate the callback', async () => {
+          let called = false;
+          const button = new ToolbarButton({
+            onClick: () => {
+              called = true;
+            }
+          });
+          Widget.attach(button, document.body);
+          await framePromise();
+          simulate(button.node.firstChild as HTMLElement, 'keydown', {
+            key: 'Enter'
+          });
+          expect(called).toBe(true);
+          button.dispose();
+        });
+        it('Space should activate the callback', async () => {
+          let called = false;
+          const button = new ToolbarButton({
+            onClick: () => {
+              called = true;
+            }
+          });
+          Widget.attach(button, document.body);
+          await framePromise();
+          simulate(button.node.firstChild as HTMLElement, 'keydown', {
+            key: ' '
+          });
+          expect(called).toBe(true);
+          button.dispose();
+        });
+      });
+    });
+
+    describe('#onAfterAttach()', () => {
+      it.skip('should add event listeners to the node', () => {
+        // const button = new LogToolbarButton();
+        // Widget.attach(button, document.body);
+        // expect(button.methods).to.contain('onAfterAttach');
+        // simulate(button.node, 'click');
+        // expect(button.events).to.contain('click');
+        // button.dispose();
+      });
+    });
+
+    describe('#onBeforeDetach()', () => {
+      it.skip('should remove event listeners from the node', async () => {
+        // const button = new LogToolbarButton();
+        // Widget.attach(button, document.body);
+        // await framePromise();
+        // Widget.detach(button);
+        // expect(button.methods).to.contain('onBeforeDetach');
+        // simulate(button.node, 'click');
+        // expect(button.events).to.not.contain('click');
+        // button.dispose();
+      });
+    });
+
+    describe('#pressed()', () => {
+      it('should update the pressed state', async () => {
+        const widget = new ToolbarButton({
+          icon: bugIcon,
+          tooltip: 'tooltip',
+          pressedTooltip: 'pressed tooltip',
+          pressedIcon: bugDotIcon
+        });
+        Widget.attach(widget, document.body);
+        await framePromise();
+        const button = widget.node.firstChild as HTMLElement;
+        expect(widget.pressed).toBe(false);
+        expect(button.title).toBe('tooltip');
+        expect(button.getAttribute('aria-pressed')).toEqual('false');
+        let icon = button.querySelectorAll('svg');
+        expect(icon[0].getAttribute('data-icon')).toEqual('ui-components:bug');
+        widget.pressed = true;
+        await framePromise();
+        await widget.renderPromise;
+        expect(widget.pressed).toBe(true);
+        expect(button.title).toBe('pressed tooltip');
+        expect(button.getAttribute('aria-pressed')).toEqual('true');
+        icon = button.querySelectorAll('svg');
+        expect(icon[0].getAttribute('data-icon')).toEqual(
+          'ui-components:bug-dot'
+        );
+        widget.dispose();
+      });
+
+      it('should not have the pressed state when not enabled', async () => {
+        const widget = new ToolbarButton({
+          icon: bugIcon,
+          tooltip: 'tooltip',
+          pressedTooltip: 'pressed tooltip',
+          disabledTooltip: 'disabled tooltip',
+          pressedIcon: bugDotIcon,
+          enabled: false
+        });
+        Widget.attach(widget, document.body);
+        await framePromise();
+        const button = widget.node.firstChild as HTMLElement;
+        expect(widget.pressed).toBe(false);
+        expect(button.title).toBe('disabled tooltip');
+        expect(button.getAttribute('aria-pressed')).toEqual('false');
+        widget.pressed = true;
+        await framePromise();
+        expect(widget.pressed).toBe(false);
+        expect(button.title).toBe('disabled tooltip');
+        expect(button.getAttribute('aria-pressed')).toEqual('false');
+        const icon = button.querySelectorAll('svg');
+        expect(icon[0].getAttribute('data-icon')).toEqual('ui-components:bug');
+        widget.dispose();
+      });
+    });
+
+    describe('#enabled()', () => {
+      it('should update the enabled state', async () => {
+        const widget = new ToolbarButton({
+          icon: bugIcon,
+          tooltip: 'tooltip',
+          pressedTooltip: 'pressed tooltip',
+          disabledTooltip: 'disabled tooltip',
+          pressedIcon: bugDotIcon
+        });
+        Widget.attach(widget, document.body);
+        await framePromise();
+        const button = widget.node.firstChild as HTMLElement;
+        expect(widget.enabled).toBe(true);
+        expect(widget.pressed).toBe(false);
+        expect(button.getAttribute('aria-disabled')).toEqual('false');
+
+        widget.pressed = true;
+        await framePromise();
+        expect(widget.pressed).toBe(true);
+
+        widget.enabled = false;
+        await framePromise();
+        await widget.renderPromise;
+        expect(widget.enabled).toBe(false);
+        expect(widget.pressed).toBe(false);
+        expect(button.getAttribute('aria-disabled')).toEqual('true');
+        widget.dispose();
+      });
+    });
+
+    describe('#onClick()', () => {
+      it('should update the onClick state', async () => {
+        let mockCalled = false;
+        const mockOnClick = () => {
+          mockCalled = true;
+        };
+        const widget = new ToolbarButton({
+          icon: bugIcon,
+          tooltip: 'tooltip',
+          onClick: mockOnClick
+        });
+        Widget.attach(widget, document.body);
+        await framePromise();
+        simulate(widget.node.firstChild as HTMLElement, 'mousedown');
+        expect(mockCalled).toBe(true);
+
+        mockCalled = false;
+        let mockUpdatedCalled = false;
+        const mockOnClickUpdated = () => {
+          mockUpdatedCalled = true;
+        };
+        widget.onClick = mockOnClickUpdated;
+        await framePromise();
+        await widget.renderPromise;
+        simulate(widget.node.firstChild as HTMLElement, 'mousedown');
+        expect(mockCalled).toBe(false);
+        expect(mockUpdatedCalled).toBe(true);
+        widget.dispose();
+      });
+    });
+  });
+});
diff --git a/packages/apputils/test/vdom.spec.ts b/packages/ui-components/test/vdom.spec.ts
similarity index 89%
rename from packages/apputils/test/vdom.spec.ts
rename to packages/ui-components/test/vdom.spec.ts
index 8c424e6c908e..63002ce74f9d 100644
--- a/packages/apputils/test/vdom.spec.ts
+++ b/packages/ui-components/test/vdom.spec.ts
@@ -1,8 +1,8 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-import { VDomModel, VDomRenderer } from '@jupyterlab/apputils';
-import { framePromise } from '@jupyterlab/testutils';
+import { VDomModel, VDomRenderer } from '@jupyterlab/ui-components';
+import { framePromise } from '@jupyterlab/testing';
 import { Widget } from '@lumino/widgets';
 import * as React from 'react';
 
@@ -31,7 +31,7 @@ class TestWidgetNoModel extends VDomRenderer {
   }
 }
 
-describe('@jupyterlab/apputils', () => {
+describe('@jupyterlab/ui-components', () => {
   describe('VDomModel', () => {
     describe('#constructor()', () => {
       it('should create a VDomModel', () => {
@@ -79,7 +79,7 @@ describe('@jupyterlab/apputils', () => {
     });
 
     describe('#modelChanged()', () => {
-      it('should fire the stateChanged signal on a change', () => {
+      it('should fire the stateChanged signal on a change', async () => {
         const model = new TestModel();
         const widget = new TestWidget(new TestModel());
         let changed = false;
@@ -95,9 +95,12 @@ describe('@jupyterlab/apputils', () => {
       it('should render the contents after a model change', async () => {
         const widget = new TestWidget(new TestModel());
         const model = new TestModel();
+        Widget.attach(widget, document.body);
         widget.model = model;
         model.value = 'foo';
         await framePromise();
+        await widget.renderPromise;
+        await framePromise();
         const span = widget.node.firstChild as HTMLElement;
         expect(span.textContent).toBe('foo');
       });
@@ -108,6 +111,7 @@ describe('@jupyterlab/apputils', () => {
         const widget = new TestWidgetNoModel();
         Widget.attach(widget, document.body);
         await framePromise();
+        await widget.renderPromise;
         const span = widget.node.firstChild as HTMLElement;
         expect(span.textContent).toBe('No model!');
       });
diff --git a/packages/ui-components/tsconfig.json b/packages/ui-components/tsconfig.json
index bc2a99db71b5..9d0c4da19d1c 100644
--- a/packages/ui-components/tsconfig.json
+++ b/packages/ui-components/tsconfig.json
@@ -1,16 +1,22 @@
 {
   "extends": "../../tsconfigbase",
   "compilerOptions": {
-    "lib": ["DOM", "ESnext.WeakRef"],
+    "lib": ["DOM", "DOM.Iterable", "ES2021.WeakRef"],
     "outDir": "lib",
     "rootDir": "src",
-    "types": ["webpack-env", "node"]
+    "types": ["node"]
   },
   "include": ["src/**/*"],
   "references": [
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../observables"
+    },
+    {
+      "path": "../rendermime-interfaces"
+    },
     {
       "path": "../translation"
     }
diff --git a/packages/ui-components/tsconfig.test.json b/packages/ui-components/tsconfig.test.json
index e07096964a3e..78171285b2bf 100644
--- a/packages/ui-components/tsconfig.test.json
+++ b/packages/ui-components/tsconfig.test.json
@@ -6,19 +6,19 @@
       "path": "../coreutils"
     },
     {
-      "path": "../translation"
+      "path": "../observables"
     },
     {
-      "path": "."
+      "path": "../rendermime-interfaces"
     },
     {
-      "path": "../../testutils"
+      "path": "../translation"
     },
     {
-      "path": "../coreutils"
+      "path": "."
     },
     {
-      "path": "../translation"
+      "path": "../testing"
     }
   ]
 }
diff --git a/packages/vdom-extension/README.md b/packages/vdom-extension/README.md
deleted file mode 100644
index f16e532588a8..000000000000
--- a/packages/vdom-extension/README.md
+++ /dev/null
@@ -1,76 +0,0 @@
-# vdom-extension
-
-A JupyterLab extension for rendering VirtualDOM using React
-
-![demo](http://g.recordit.co/EIwAIBsGBh.gif)
-
-This extension is in the official JupyterLab distribution.
-
-## Usage
-
-To render VDOM output in IPython:
-
-```python
-from IPython.display import display
-
-def VDOM(data={}):
-    bundle = {}
-    bundle['application/vdom.v1+json'] = data
-    display(bundle, raw=True)
-
-VDOM({
-    'tagName': 'div',
-    'attributes': {},
-    'children': [{
-        'tagName': 'h1',
-        'attributes': {},
-        'children': 'Our Incredibly Declarative Example',
-        'key': 0
-    }, {
-        'tagName': 'p',
-        'attributes': {},
-        'children': ['Can you believe we wrote this ', {
-            'tagName': 'b',
-            'attributes': {},
-            'children': 'in Python',
-            'key': 1
-        }, '?'],
-        'key': 1
-    }, {
-        'tagName': 'img',
-        'attributes': {
-            'src': 'https://media.giphy.com/media/xUPGcguWZHRC2HyBRS/giphy.gif'
-        },
-        'key': 2
-    }, {
-        'tagName': 'p',
-        'attributes': {},
-        'children': ['What will ', {
-            'tagName': 'b',
-            'attributes': {},
-            'children': 'you',
-            'key': 1
-        }, ' create next?'],
-        'key': 3
-    }]
-})
-```
-
-Using the [vdom Python library](https://github.com/nteract/vdom):
-
-```python
-from vdom import h1, p, img, div, b
-
-div(
-    h1('Our Incredibly Declarative Example'),
-    p('Can you believe we wrote this ', b('in Python'), '?'),
-    img(src="https://media.giphy.com/media/xUPGcguWZHRC2HyBRS/giphy.gif"),
-    p('What will ', b('you'), ' create next?'),
-)
-```
-
-To render a `.vdom` or `.vdom.json` file, simply open it:
-
-## Development
-
-See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md).
diff --git a/packages/vdom-extension/package.json b/packages/vdom-extension/package.json
deleted file mode 100644
index 052c3b152d96..000000000000
--- a/packages/vdom-extension/package.json
+++ /dev/null
@@ -1,55 +0,0 @@
-{
-  "name": "@jupyterlab/vdom-extension",
-  "version": "3.6.6",
-  "description": "JupyterLab - VDOM Renderer",
-  "homepage": "https://github.com/jupyterlab/jupyterlab",
-  "bugs": {
-    "url": "https://github.com/jupyterlab/jupyterlab/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/jupyterlab/jupyterlab.git"
-  },
-  "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
-  "sideEffects": [
-    "style/**/*"
-  ],
-  "main": "lib/index.js",
-  "types": "lib/index.d.ts",
-  "style": "style/index.css",
-  "directories": {
-    "lib": "lib/"
-  },
-  "files": [
-    "lib/*.{d.ts,js,js.map}",
-    "style/*"
-  ],
-  "scripts": {
-    "build": "tsc -b",
-    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "docs": "typedoc src",
-    "watch": "tsc -b --watch"
-  },
-  "dependencies": {
-    "@jupyterlab/application": "^3.6.6",
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/ui-components": "^3.6.6",
-    "@jupyterlab/vdom": "^3.6.6"
-  },
-  "devDependencies": {
-    "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "jupyterlab": {
-    "extension": true
-  },
-  "styleModule": "style/index.js"
-}
diff --git a/packages/vdom-extension/src/index.ts b/packages/vdom-extension/src/index.ts
deleted file mode 100644
index 407bc9c3fb3f..000000000000
--- a/packages/vdom-extension/src/index.ts
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-/**
- * @packageDocumentation
- * @module vdom-extension
- */
-
-import {
-  ILayoutRestorer,
-  JupyterFrontEnd,
-  JupyterFrontEndPlugin
-} from '@jupyterlab/application';
-import { WidgetTracker } from '@jupyterlab/apputils';
-import { MimeDocument, MimeDocumentFactory } from '@jupyterlab/docregistry';
-import { INotebookTracker } from '@jupyterlab/notebook';
-import { IRenderMimeRegistry } from '@jupyterlab/rendermime';
-import { reactIcon } from '@jupyterlab/ui-components';
-import { IVDOMTracker, RenderedVDOM } from '@jupyterlab/vdom';
-
-/**
- * The MIME type for VDOM.
- */
-export const MIME_TYPE = 'application/vdom.v1+json';
-
-/**
- * The name of the factory that creates VDOM widgets.
- */
-const FACTORY_NAME = 'VDOM';
-
-const plugin: JupyterFrontEndPlugin<IVDOMTracker> = {
-  id: '@jupyterlab/vdom-extension:factory',
-  requires: [IRenderMimeRegistry],
-  optional: [INotebookTracker, ILayoutRestorer],
-  provides: IVDOMTracker,
-  autoStart: true,
-  activate: (
-    app: JupyterFrontEnd,
-    rendermime: IRenderMimeRegistry,
-    notebooks: INotebookTracker | null,
-    restorer: ILayoutRestorer | null
-  ) => {
-    const tracker = new WidgetTracker<MimeDocument>({
-      namespace: 'vdom-widget'
-    });
-
-    // Add a renderer factory to application rendermime registry.
-    rendermime.addFactory(
-      {
-        safe: false,
-        mimeTypes: [MIME_TYPE],
-        createRenderer: options => new RenderedVDOM(options)
-      },
-      0
-    );
-
-    if (notebooks) {
-      notebooks.widgetAdded.connect((sender, panel) => {
-        // Get the notebook's context and rendermime;
-        const {
-          context,
-          content: { rendermime }
-        } = panel;
-
-        // Add the renderer factory to the notebook's rendermime registry;
-        rendermime.addFactory(
-          {
-            safe: false,
-            mimeTypes: [MIME_TYPE],
-            createRenderer: options => new RenderedVDOM(options, context)
-          },
-          0
-        );
-      });
-    }
-
-    app.docRegistry.addFileType({
-      name: 'vdom',
-      mimeTypes: [MIME_TYPE],
-      extensions: ['.vdom', '.vdom.json'],
-      icon: reactIcon
-    });
-
-    const factory = new MimeDocumentFactory({
-      renderTimeout: 1000,
-      dataType: 'json',
-      rendermime,
-      name: FACTORY_NAME,
-      primaryFileType: app.docRegistry.getFileType('vdom')!,
-      fileTypes: ['vdom', 'json'],
-      defaultFor: ['vdom']
-    });
-
-    factory.widgetCreated.connect((sender, widget) => {
-      widget.context.pathChanged.connect(() => {
-        void tracker.save(widget);
-      });
-      void tracker.add(widget);
-    });
-
-    // Add widget factory to document registry.
-    app.docRegistry.addWidgetFactory(factory);
-
-    if (restorer) {
-      // Handle state restoration.
-      void restorer.restore(tracker, {
-        command: 'docmanager:open',
-        args: widget => ({
-          path: widget.context.path,
-          factory: FACTORY_NAME
-        }),
-        name: widget => widget.context.path
-      });
-    }
-
-    return tracker;
-  }
-};
-
-export default plugin;
diff --git a/packages/vdom-extension/typedoc.json b/packages/vdom-extension/typedoc.json
deleted file mode 100644
index 1c5fb0045904..000000000000
--- a/packages/vdom-extension/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/vdom-extension",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/vdom/README.md b/packages/vdom/README.md
deleted file mode 100644
index e7f2042c4ab1..000000000000
--- a/packages/vdom/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# vdom
-
-A library for rendering VirtualDOM content using React.
-
-## Development
-
-See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md).
diff --git a/packages/vdom/package.json b/packages/vdom/package.json
deleted file mode 100644
index b4e99584299f..000000000000
--- a/packages/vdom/package.json
+++ /dev/null
@@ -1,57 +0,0 @@
-{
-  "name": "@jupyterlab/vdom",
-  "version": "3.6.6",
-  "description": "A viewer for VDOM documents.",
-  "homepage": "https://github.com/jupyterlab/jupyterlab",
-  "bugs": {
-    "url": "https://github.com/jupyterlab/jupyterlab/issues"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/jupyterlab/jupyterlab.git"
-  },
-  "license": "BSD-3-Clause",
-  "author": "Project Jupyter",
-  "sideEffects": [
-    "style/**/*"
-  ],
-  "main": "lib/index.js",
-  "types": "lib/index.d.ts",
-  "style": "style/index.css",
-  "directories": {
-    "lib": "lib/"
-  },
-  "files": [
-    "lib/*.{d.ts,js,js.map}",
-    "style/*"
-  ],
-  "scripts": {
-    "build": "tsc -b",
-    "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "docs": "typedoc src",
-    "watch": "tsc -b --watch"
-  },
-  "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/messaging": "^1.10.0",
-    "@lumino/widgets": "^1.37.2",
-    "@nteract/transform-vdom": "^4.0.16-alpha.0",
-    "react": "^17.0.1",
-    "react-dom": "^17.0.1"
-  },
-  "devDependencies": {
-    "@types/react": "^17.0.0",
-    "@types/react-dom": "^17.0.0",
-    "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
-  },
-  "publishConfig": {
-    "access": "public"
-  },
-  "styleModule": "style/index.js"
-}
diff --git a/packages/vdom/src/index.tsx b/packages/vdom/src/index.tsx
deleted file mode 100644
index 79b03d97c626..000000000000
--- a/packages/vdom/src/index.tsx
+++ /dev/null
@@ -1,118 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-/**
- * @packageDocumentation
- * @module vdom
- */
-
-import { ISessionContext, IWidgetTracker } from '@jupyterlab/apputils';
-import { DocumentRegistry, MimeDocument } from '@jupyterlab/docregistry';
-import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
-import { Kernel } from '@jupyterlab/services';
-import { Token } from '@lumino/coreutils';
-import { Message } from '@lumino/messaging';
-import { Widget } from '@lumino/widgets';
-import VDOM, { SerializedEvent } from '@nteract/transform-vdom';
-import * as React from 'react';
-import * as ReactDOM from 'react-dom';
-
-/**
- * The CSS class to add to the VDOM Widget.
- */
-const CSS_CLASS = 'jp-RenderedVDOM';
-
-/**
- * A class that tracks VDOM widgets.
- */
-export interface IVDOMTracker extends IWidgetTracker<MimeDocument> {}
-
-/**
- * The VDOM tracker token.
- */
-export const IVDOMTracker = new Token<IVDOMTracker>(
-  '@jupyterlab/vdom:IVDOMTracker'
-);
-
-/**
- * A renderer for declarative virtual DOM content.
- */
-export class RenderedVDOM extends Widget implements IRenderMime.IRenderer {
-  /**
-   * Create a new widget for rendering DOM.
-   */
-  constructor(
-    options: IRenderMime.IRendererOptions,
-    context?: DocumentRegistry.IContext<DocumentRegistry.IModel>
-  ) {
-    super();
-    this.addClass(CSS_CLASS);
-    this.addClass('jp-RenderedHTML');
-    this.addClass('jp-RenderedHTMLCommon');
-    this._mimeType = options.mimeType;
-    if (context) {
-      this._sessionContext = context.sessionContext;
-    }
-  }
-
-  /**
-   * Dispose of the widget.
-   */
-  dispose(): void {
-    // Dispose of comm disposables
-    for (const targetName in this._comms) {
-      this._comms[targetName].dispose();
-    }
-    super.dispose();
-  }
-
-  /**
-   * Called before the widget is detached from the DOM.
-   */
-  protected onBeforeDetach(msg: Message): void {
-    // Dispose of React component(s).
-    ReactDOM.unmountComponentAtNode(this.node);
-  }
-
-  /**
-   * Render VDOM into this widget's node.
-   */
-  renderModel(model: IRenderMime.IMimeModel): Promise<void> {
-    return new Promise((resolve, reject) => {
-      const data = model.data[this._mimeType] as any;
-      ReactDOM.render(
-        <VDOM data={data} onVDOMEvent={this.handleVDOMEvent} />,
-        this.node,
-        () => {
-          resolve();
-        }
-      );
-    });
-  }
-
-  /**
-   * Handle events for VDOM element.
-   */
-  handleVDOMEvent = (targetName: string, event: SerializedEvent<any>): void => {
-    // When a VDOM element's event handler is called, send a serialized
-    // representation of the event to the registered comm channel for the
-    // kernel to handle
-    if (this._timer) {
-      window.clearTimeout(this._timer);
-    }
-    const kernel = this._sessionContext?.session?.kernel;
-    if (kernel) {
-      this._timer = window.setTimeout(() => {
-        if (!this._comms[targetName]) {
-          this._comms[targetName] = kernel.createComm(targetName);
-          this._comms[targetName].open();
-        }
-        this._comms[targetName].send(JSON.stringify(event));
-      }, 16);
-    }
-  };
-
-  private _mimeType: string;
-  private _sessionContext?: ISessionContext;
-  private _comms: { [targetName: string]: Kernel.IComm } = {};
-  private _timer: number;
-}
diff --git a/packages/vdom/style/base.css b/packages/vdom/style/base.css
deleted file mode 100644
index 850eccd402f0..000000000000
--- a/packages/vdom/style/base.css
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
-  Copyright (c) Jupyter Development Team.
-  Distributed under the terms of the Modified BSD License.
-*/
-
-/* Base styles */
-.jp-RenderedVDOM {
-  width: 100%;
-  height: 100%;
-  padding: 0;
-  overflow: auto;
-}
-
-/* Document styles */
-.jp-MimeDocument .jp-RenderedVDOM {
-  padding: 5px;
-}
diff --git a/packages/vdom/tsconfig.json b/packages/vdom/tsconfig.json
deleted file mode 100644
index d98fff4ce7b3..000000000000
--- a/packages/vdom/tsconfig.json
+++ /dev/null
@@ -1,22 +0,0 @@
-{
-  "extends": "../../tsconfigbase",
-  "compilerOptions": {
-    "outDir": "lib",
-    "rootDir": "src"
-  },
-  "include": ["src/*"],
-  "references": [
-    {
-      "path": "../apputils"
-    },
-    {
-      "path": "../docregistry"
-    },
-    {
-      "path": "../rendermime-interfaces"
-    },
-    {
-      "path": "../services"
-    }
-  ]
-}
diff --git a/packages/vdom/typedoc.json b/packages/vdom/typedoc.json
deleted file mode 100644
index 4c6faa6b2b95..000000000000
--- a/packages/vdom/typedoc.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "out": "../../docs/api/vdom",
-  "theme": "../../typedoc-theme"
-}
diff --git a/packages/vega5-extension/README.md b/packages/vega5-extension/README.md
index ca9b9edc2986..de8dbc9e3a25 100644
--- a/packages/vega5-extension/README.md
+++ b/packages/vega5-extension/README.md
@@ -102,4 +102,4 @@ To render a `.vl`, `.vg`, `vl.json` or `.vg.json` file, simply open it:
 
 ## Development
 
-See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/3.6.x/CONTRIBUTING.md).
+See the [JupyterLab Contributor Documentation](https://github.com/jupyterlab/jupyterlab/blob/4.0.x/CONTRIBUTING.md).
diff --git a/packages/vega5-extension/package.json b/packages/vega5-extension/package.json
index 5f244531df71..06af3aab595b 100644
--- a/packages/vega5-extension/package.json
+++ b/packages/vega5-extension/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@jupyterlab/vega5-extension",
-  "version": "3.6.6",
-  "description": "JupyterLab - Vega 5 and Vega-Lite 3 Mime Renderer Extension",
+  "version": "4.0.8",
+  "description": "JupyterLab - Vega 5 and Vega-Lite 5 Mime Renderer Extension",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
     "url": "https://github.com/jupyterlab/jupyterlab/issues"
@@ -23,7 +23,8 @@
   },
   "files": [
     "lib/*.{d.ts,js,js.map}",
-    "style/*.*"
+    "style/*.*",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
@@ -32,26 +33,26 @@
     "docs": "typedoc src",
     "test": "jest",
     "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
+    "test:debug": "node --inspect-brk ../../node_modules/.bin/jest --runInBand",
+    "test:debug:watch": "node --inspect-brk ../../node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/rendermime-interfaces": "^3.6.6",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/widgets": "^1.37.2",
+    "@jupyterlab/rendermime-interfaces": "^3.8.8",
+    "@lumino/coreutils": "^2.1.2",
+    "@lumino/widgets": "^2.3.0",
     "vega": "^5.20.0",
     "vega-embed": "^6.2.1",
-    "vega-lite": "^5.1.0"
+    "vega-lite": "^5.6.1-next.1"
   },
   "devDependencies": {
-    "@jupyterlab/testutils": "^3.6.6",
-    "@types/jest": "^26.0.10",
-    "@types/webpack-env": "^1.14.1",
-    "jest": "^26.4.2",
+    "@jupyterlab/testutils": "^4.0.8",
+    "@types/jest": "^29.2.0",
+    "@types/webpack-env": "^1.18.0",
+    "jest": "^29.2.0",
     "rimraf": "~3.0.0",
-    "typedoc": "~0.21.2",
-    "typescript": "~4.1.3"
+    "typedoc": "~0.24.7",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/vega5-extension/src/index.ts b/packages/vega5-extension/src/index.ts
index 1a3369389c7e..35a87e997427 100644
--- a/packages/vega5-extension/src/index.ts
+++ b/packages/vega5-extension/src/index.ts
@@ -51,6 +51,14 @@ export const VEGALITE3_MIME_TYPE = 'application/vnd.vegalite.v3+json';
  */
 export const VEGALITE4_MIME_TYPE = 'application/vnd.vegalite.v4+json';
 
+/**
+ * The MIME type for Vega-Lite.
+ *
+ * #### Notes
+ * The version of this follows the major version of Vega-Lite.
+ */
+export const VEGALITE5_MIME_TYPE = 'application/vnd.vegalite.v5+json';
+
 /**
  * A widget for rendering Vega or Vega-Lite data, for usage with rendermime.
  */
@@ -136,7 +144,11 @@ export class RenderedVega extends Widget implements IRenderMime.IRenderer {
     // Add png representation of vega chart to output
     const imageURL = await this._result.view.toImageURL(
       'png',
-      embedOptions.scaleFactor
+      typeof embedOptions.scaleFactor === 'number'
+        ? embedOptions.scaleFactor
+        : embedOptions.scaleFactor
+        ? (embedOptions.scaleFactor as any).png
+        : embedOptions.scaleFactor
     );
     model.setData({
       data: { ...model.data, 'image/png': imageURL.split(',')[1] }
@@ -159,12 +171,18 @@ export class RenderedVega extends Widget implements IRenderMime.IRenderer {
  */
 export const rendererFactory: IRenderMime.IRendererFactory = {
   safe: true,
-  mimeTypes: [VEGA_MIME_TYPE, VEGALITE3_MIME_TYPE, VEGALITE4_MIME_TYPE],
+  mimeTypes: [
+    VEGA_MIME_TYPE,
+    VEGALITE3_MIME_TYPE,
+    VEGALITE4_MIME_TYPE,
+    VEGALITE5_MIME_TYPE
+  ],
   createRenderer: options => new RenderedVega(options)
 };
 
 const extension: IRenderMime.IExtension = {
   id: '@jupyterlab/vega5-extension:factory',
+  description: 'Provides a renderer for Vega 5 and Vega-Lite 3 to 5 content.',
   rendererFactory,
   rank: 57,
   dataType: 'json',
@@ -176,10 +194,10 @@ const extension: IRenderMime.IExtension = {
       defaultFor: ['vega5']
     },
     {
-      name: 'Vega-Lite4',
-      primaryFileType: 'vega-lite4',
-      fileTypes: ['vega-lite3', 'vega-lite4', 'json'],
-      defaultFor: ['vega-lite3', 'vega-lite4']
+      name: 'Vega-Lite5',
+      primaryFileType: 'vega-lite5',
+      fileTypes: ['vega-lite3', 'vega-lite4', 'vega-lite5', 'json'],
+      defaultFor: ['vega-lite3', 'vega-lite4', 'vega-lite5']
     }
   ],
   fileTypes: [
@@ -189,10 +207,16 @@ const extension: IRenderMime.IExtension = {
       extensions: ['.vg', '.vg.json', '.vega'],
       icon: 'ui-components:vega'
     },
+    {
+      mimeTypes: [VEGALITE5_MIME_TYPE],
+      name: 'vega-lite5',
+      extensions: ['.vl', '.vl.json', '.vegalite'],
+      icon: 'ui-components:vega'
+    },
     {
       mimeTypes: [VEGALITE4_MIME_TYPE],
       name: 'vega-lite4',
-      extensions: ['.vl', '.vl.json', '.vegalite'],
+      extensions: [],
       icon: 'ui-components:vega'
     },
     {
diff --git a/packages/vega5-extension/src/json.d.ts b/packages/vega5-extension/src/json.d.ts
index 3abbcd236bbf..8413bca0d1e3 100644
--- a/packages/vega5-extension/src/json.d.ts
+++ b/packages/vega5-extension/src/json.d.ts
@@ -1,3 +1,8 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 declare module '*.json' {
   export const version: string;
 }
diff --git a/packages/vega5-extension/style/index.css b/packages/vega5-extension/style/index.css
index 8fe68ab59e76..175c3e71145f 100644
--- a/packages/vega5-extension/style/index.css
+++ b/packages/vega5-extension/style/index.css
@@ -5,5 +5,4 @@
 
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@lumino/widgets/style/index.css');
-
 @import url('./base.css');
diff --git a/packages/vega5-extension/test/renderer.spec.ts b/packages/vega5-extension/test/renderer.spec.ts
index 570cba310aed..349953ce606f 100644
--- a/packages/vega5-extension/test/renderer.spec.ts
+++ b/packages/vega5-extension/test/renderer.spec.ts
@@ -2,13 +2,13 @@
 // Distributed under the terms of the Modified BSD License.
 
 import { MimeModel } from '@jupyterlab/rendermime';
-import { VEGALITE4_MIME_TYPE } from '@jupyterlab/vega5-extension';
+import { VEGALITE5_MIME_TYPE } from '@jupyterlab/vega5-extension';
 import {
   DEFAULT_SIZE,
   getPNGSize,
   SCALE_FACTOR_PROP,
-  VEGALITE4_RENDERER,
-  VEGALITE4_SPEC
+  VEGALITE5_RENDERER,
+  VEGALITE5_SPEC
 } from './utils';
 
 describe('@jupyterlab/vega5-extension', () => {
@@ -16,10 +16,10 @@ describe('@jupyterlab/vega5-extension', () => {
     it('should attach a default sized PNG', async () => {
       const model = new MimeModel({
         data: {
-          [VEGALITE4_MIME_TYPE]: VEGALITE4_SPEC
+          [VEGALITE5_MIME_TYPE]: VEGALITE5_SPEC
         }
       });
-      await VEGALITE4_RENDERER.renderModel(model);
+      await VEGALITE5_RENDERER.renderModel(model);
 
       expect(model).toHaveProperty('data.image/png');
       expect(model).not.toHaveProperty(SCALE_FACTOR_PROP);
@@ -35,17 +35,17 @@ describe('@jupyterlab/vega5-extension', () => {
 
       const model = new MimeModel({
         data: {
-          [VEGALITE4_MIME_TYPE]: VEGALITE4_SPEC
+          [VEGALITE5_MIME_TYPE]: VEGALITE5_SPEC
         },
         metadata: {
-          [VEGALITE4_MIME_TYPE]: {
+          [VEGALITE5_MIME_TYPE]: {
             embed_options: {
               scaleFactor
             }
           }
         }
       });
-      await VEGALITE4_RENDERER.renderModel(model);
+      await VEGALITE5_RENDERER.renderModel(model);
 
       expect(model).toHaveProperty('data.image/png');
       expect(model).toHaveProperty(SCALE_FACTOR_PROP, scaleFactor);
diff --git a/packages/vega5-extension/test/utils.ts b/packages/vega5-extension/test/utils.ts
index 07fb1dc545e1..81f2a6d41064 100644
--- a/packages/vega5-extension/test/utils.ts
+++ b/packages/vega5-extension/test/utils.ts
@@ -3,7 +3,7 @@
  * Distributed under the terms of the Modified BSD License.
  */
 
-import { RenderedVega, VEGALITE4_MIME_TYPE } from '@jupyterlab/vega5-extension';
+import { RenderedVega, VEGALITE5_MIME_TYPE } from '@jupyterlab/vega5-extension';
 import { JSONObject } from '@lumino/coreutils';
 
 interface ISize {
@@ -14,23 +14,23 @@ interface ISize {
 export const DEFAULT_SIZE: number = 200;
 export const SCALE_FACTOR_PROP: string[] = [
   'metadata',
-  VEGALITE4_MIME_TYPE,
+  VEGALITE5_MIME_TYPE,
   'embed_options',
   'scaleFactor'
 ];
 
-export const VEGALITE4_RENDERER = new RenderedVega({
+export const VEGALITE5_RENDERER = new RenderedVega({
   latexTypesetter: null,
   linkHandler: null,
-  mimeType: VEGALITE4_MIME_TYPE,
+  mimeType: VEGALITE5_MIME_TYPE,
   resolver: null,
   sanitizer: {
     sanitize: (s: string) => s
   }
 });
 
-export const VEGALITE4_SPEC: JSONObject = {
-  $schema: 'https://vega.github.io/schema/vega-lite/v4.json',
+export const VEGALITE5_SPEC: JSONObject = {
+  $schema: 'https://vega.github.io/schema/vega-lite/v5.json',
   description: 'A simple bar chart with embedded data.',
   width: DEFAULT_SIZE,
   height: DEFAULT_SIZE,
diff --git a/packages/vega5-extension/tsconfig.json b/packages/vega5-extension/tsconfig.json
index a631202393b1..68df27709c47 100644
--- a/packages/vega5-extension/tsconfig.json
+++ b/packages/vega5-extension/tsconfig.json
@@ -2,7 +2,6 @@
   "extends": "../../tsconfigbase",
   "compilerOptions": {
     "outDir": "lib",
-    "skipLibCheck": true,
     "types": ["webpack-env"],
     "rootDir": "src"
   },
diff --git a/packages/vega5-extension/tsconfig.test.json b/packages/vega5-extension/tsconfig.test.json
index 55cd5071c944..f42577169fda 100644
--- a/packages/vega5-extension/tsconfig.test.json
+++ b/packages/vega5-extension/tsconfig.test.json
@@ -10,9 +10,6 @@
     },
     {
       "path": "../../testutils"
-    },
-    {
-      "path": "../rendermime-interfaces"
     }
   ]
 }
diff --git a/pyproject.toml b/pyproject.toml
index 86b65c41e6b8..458ffe4fd091 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,39 +1,321 @@
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 [build-system]
-requires=["jupyter_packaging>=0.9,<2"]
-build-backend = "jupyter_packaging.build_api"
+requires = ["hatchling>=1.5.0"]
+build-backend = "hatchling.build"
+
+[project]
+name = "jupyterlab"
+description = "JupyterLab computational environment"
+readme = "README.md"
+license = { file = "LICENSE" }
+requires-python = ">=3.8"
+authors = [
+    { name = "Jupyter Development Team", email = "jupyter@googlegroups.com" },
+]
+keywords = [
+    "ipython",
+    "jupyter",
+]
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Framework :: Jupyter",
+    "Framework :: Jupyter :: JupyterLab",
+    "Framework :: Jupyter :: JupyterLab :: 4",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: BSD License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+]
+dependencies = [
+    "async_lru>=1.0.0",
+    "importlib-metadata>=4.8.3;python_version<\"3.10\"",
+    "importlib-resources>=1.4;python_version<\"3.9\"",
+    "ipykernel",
+    "jinja2>=3.0.3",
+    "jupyter_core",
+    "jupyter-lsp>=2.0.0",
+    "jupyter_server>=2.4.0,<3",
+    "jupyterlab_server>=2.19.0,<3",
+    "notebook_shim>=0.2",
+    "packaging",
+    "traitlets",
+    "tornado>=6.2.0",
+    "tomli;python_version<\"3.11\"",
+]
+dynamic = [
+    "version",
+]
+
+[project.scripts]
+jlpm = "jupyterlab.jlpmapp:main"
+jupyter-lab = "jupyterlab.labapp:main"
+jupyter-labextension = "jupyterlab.labextensions:main"
+jupyter-labhub = "jupyterlab.labhubapp:main"
+
+[project.entry-points."jupyterlab.extension_manager_v1"]
+readonly = "jupyterlab.extensions:get_readonly_manager"
+pypi = "jupyterlab.extensions:get_pypi_manager"
+
+[project.urls]
+Homepage = "https://jupyter.org"
+Changelog = "https://jupyterlab.readthedocs.io/en/stable/getting_started/changelog.html"
+Documentation = "https://jupyterlab.readthedocs.io"
+Source = "https://github.com/jupyterlab/jupyterlab"
+Issues = "https://github.com/jupyterlab/jupyterlab/issues/new/choose"
+Gitter = "https://gitter.im/jupyterlab/jupyterlab"
+Pypi = "https://pypi.org/project/jupyterlab"
+
+[project.optional-dependencies]
+docs = [
+    "sphinx>=1.8,<7.2.0",
+    "sphinx-copybutton",
+    "pydata-sphinx-theme>=0.13.0",
+    "pytest",
+    "pytest-tornasync",
+    "pytest-check-links",
+    "jsx-lexer",
+    "myst-parser",
+]
+docs-screenshots = [
+    "altair==5.0.1",
+    "ipython==8.14.0",
+    "ipywidgets==8.0.6",
+    "jupyterlab-geojson==3.4.0",
+    "jupyterlab-language-pack-zh-CN==4.0.post0",
+    "matplotlib==3.7.1",
+    "nbconvert>=7.0.0",
+    "pandas==2.0.2",
+    "scipy==1.10.1",
+    "vega_datasets==0.9.0",
+]
+test = [
+    "coverage",
+    "pytest>=7.0",
+    "pytest-check-links>=0.7",
+    "pytest-console-scripts",
+    "pytest-cov",
+    "pytest-jupyter>=0.5.3",
+    "pytest-timeout",
+    "pytest-tornasync",
+    "requests",
+    "requests_cache",
+    "virtualenv",
+]
+dev = [
+    "build",
+    "pre-commit",
+    "pytest-cov",
+    "coverage",
+    "hatch",
+    "bump2version",
+    "ruff==0.0.292",
+    "black[jupyter]==23.10.1"
+]
+
+[tool.check-wheel-contents]
+ignore = ["W002", "W004"]
+
+[tool.hatch.version]
+path = "jupyterlab/_version.py"
+source = "code"
 
-[license]
-file="LICENSE"
+[tool.hatch.build.targets.wheel.shared-data]
+"jupyterlab/static" = "share/jupyter/lab/static"
+"jupyterlab/schemas" = "share/jupyter/lab/schemas"
+"jupyterlab/themes" = "share/jupyter/lab/themes"
+"jupyter-config" = "etc/jupyter"
+"jupyterlab.svg" = "share/icons/hicolor/scalable/apps/jupyterlab.svg"
+"jupyterlab.desktop" = "share/applications/jupyterlab.desktop"
 
-[tool.jupyter-packaging.builder]
-factory = "jupyter_packaging.npm_builder"
+[tool.hatch.build]
+ignore-vcs = true
 
-[tool.jupyter-packaging.build-args]
+[tool.hatch.build.targets.sdist]
+include = [
+    "/*.md",
+    "/buildapi.py",
+    "/conftest.py",
+    "/docs",
+    "/docker",
+    "/Dockerfile",
+    "/.dockerignore",
+    "/galata",
+    "/jupyter-config",
+    "/jupyterlab",
+    "/package.json",
+    "jupyterlab.svg",
+    "jupyterlab.desktop"
+]
+exclude = [
+    "/.github",
+    "*.js.map",
+    "node_modules",
+    "/clean.py",
+    "/binder",
+    "/builder",
+    "/buildutils",
+    "/dist",
+    "/docs/build",
+    "/docs/source/api",
+    "/design",
+    "/dev_mode",
+    "/examples",
+    "/galata/lib",
+    "/jupyterlab/staging/build",
+    "/jupyterlab/staging/.yarn",
+    "/packages",
+    "/release",
+    "/testutils",
+    "/typedoc-theme"
+]
+
+[tool.hatch.build.targets.wheel]
+include = [
+    "/jupyterlab",
+]
+exclude = [
+    "*.js.map",
+    "/jupyterlab/staging/build",
+    "/jupyterlab/staging/.yarn",
+    "node_modules"
+]
+
+[tool.hatch.build.hooks.jupyter-builder]
+dependencies = ["hatch-jupyter-builder>=0.3.2"]
+build-function = "buildapi.builder"
+ensured-targets = [
+    "jupyterlab/static/package.json",
+    "jupyterlab/schemas/@jupyterlab/shortcuts-extension/shortcuts.json",
+    "jupyterlab/themes/@jupyterlab/theme-light-extension/index.css"
+]
+install-pre-commit-hook = true
+
+[tool.hatch.build.hooks.jupyter-builder.editable-build-kwargs]
+build_cmd = "build"
+source_dir = "packages"
+build_dir = "dev_mode/static"
+npm = ["node", "jupyterlab/staging/yarn.js"]
+
+[tool.hatch.build.hooks.jupyter-builder.build-kwargs]
 build_cmd = "build:prod:minimize"
 path = "jupyterlab/staging"
-source_dir= "jupyterlab/staging"
+source_dir = "jupyterlab/staging"
 build_dir = "jupyterlab/static"
 npm = ["node", "yarn.js"]
 
 [tool.pytest.ini_options]
-testpaths="jupyterlab/tests"
-norecursedirs="node_modules .git _build"
-addopts="--pdbcls=IPython.terminal.debugger:Pdb -v --junitxml=junit.xml"
-ignore="tests examples"
-
-[tool.check-manifest]
-ignore = ["binder/**", "builder/**", "buildutils/**", "design/**", "dev_mode/**", "examples/**", "packages/**", "scripts/**", "testutils/**", "*.json", "yarn.lock", "readthedocs.yml", ".bumpversion.cfg", ".*", "clean.py", "*.config.js", "release/*", "typedoc-theme/**", "typedoc.js", "jupyterlab/schemas/**", "jupyterlab/static/**", "jupyterlab/themes/**", "jupyterlab/style.js"]
+testpaths = "jupyterlab/tests"
+norecursedirs = "node_modules .git _build"
+addopts = "--pdbcls=IPython.terminal.debugger:Pdb -v --junitxml=junit.xml"
+ignore = "tests examples"
 
 [tool.jupyter-releaser.options]
 version-cmd = "jlpm bumpversion --force --skip-commit"
 npm-install-options = "--legacy-peer-deps"
 npm-cmd = "npm publish --tag latest"
-pydist-extra-check-cmds = ""
 release-message = "[ci skip] Publish {version}"
 tag-message = "[ci skip] Release {tag_name}"
 
 [tool.jupyter-releaser.hooks]
-before-bump-version = ["pip install -e .[test]"]
-before-build-npm = ["jlpm", "jlpm run build:all"]
-before-build-python = ["node buildutils/lib/local-repository start; true", "jlpm run before:build:python", "node buildutils/lib/local-repository stop", "node buildutils/lib/local-repository fix-links --path jupyterlab/staging"]
+before-bump-version = [
+    "pip install -e .[dev]",
+    "git checkout .",
+]
+before-build-npm = [
+    "jlpm",
+    "jlpm run build:all",
+]
+before-build-python = [
+    "node buildutils/lib/local-repository start",
+    "jlpm run before:build:python",
+    "node buildutils/lib/local-repository stop",
+]
 after-publish-assets = "npm run after:publish:assets"
+
+[tool.black]
+line-length = 100
+target-version = ["py37"]
+skip-string-normalization = true
+extend-exclude = '''
+(
+  .*\/css_js_injection.ipynb  # Exclude integration test notebook
+)
+'''
+
+[tool.ruff]
+target-version = "py37"
+line-length = 100
+select = [
+  "A", "B", "C", "DTZ", "E", "EM", "F", "FBT", "I", "ICN", "ISC", "N",
+  "PLC", "PLE", "PLR", "PLW", "Q", "RUF", "S", "SIM", "T", "TID", "UP",
+  "W", "YTT",
+]
+ignore = [
+# Q000 Single quotes found but double quotes preferred
+"Q000",
+# FBT001 Boolean positional arg in function definition
+"FBT001", "FBT002", "FBT003",
+# E501 Line too long (158 > 100 characters)
+"E501",
+# PLR0913 Too many arguments to function call
+"PLR0913",
+# SIM105 Use `contextlib.suppress(...)`
+"SIM105",
+]
+
+[tool.ruff.per-file-ignores]
+# F821 Undefined name `c`
+"binder/jupyter_config.py" = ["F821"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+"examples/example_check.py" = ["RUF012"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+"examples/federated/main.py" = ["RUF012"]
+# T201 `print` found
+"examples/test_examples.py" = ["T201"]
+# T201 `print` found
+"galata/*" = ["T201"]
+# F821 Undefined name `c`
+# S104 Possible binding to all interfaces
+# S105 Possible hardcoded password: `""`
+"galata/jupyter_server_test_config.py" = ["F821", "S104", "S105"]
+# T201 `print` found
+"jupyterlab/browser_check.py" = ["RUF012", "T201"]
+# C901 method is too complex
+"jupyterlab/commands.py" = ["C901"]
+# B028 No explicit `stacklevel` keyword argument found
+"jupyterlab/debuglog.py" = ["B028"]
+"jupyterlab/extensions/manager.py" = ["C901"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+# T201 `print` found
+"jupyterlab/labapp.py" = ["RUF012", "T201"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+"jupyterlab/labextensions.py" = ["RUF012"]
+# C901 method is too complex
+# S101 Use of `assert` detected
+# N802 Function name `foo` should be lowercase
+# EM101 Exception must not use a string literal
+# PLR2004 Magic value used in comparison
+"jupyterlab/tests/*" = ["C901", "S101", "N802", "E501", "EM101", "EM102", "EM103", "PLR2004"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+"jupyterlab/tests/echo_kernel.py" = ["RUF012"]
+# T201 `print` found
+"scripts/milestone_check.py" = ["T201"]
+# N806 Variable `tM` in function should be lowercase
+# N816 Variable `comparatorTrimReplace` in global scope should not be mixedCase
+# PLC1901 test can be simplified as an empty string is falsey
+# PLR1714 Consider merging multiple comparisons
+# PLR5501 Use `elif` instead of `else` then `if`, to reduce indentation
+"jupyterlab/semver.py" = ["C901", "EM101", "EM102", "N806", "N816", "PLC1901", "PLR1714", "PLR5501"]
+# T201 `print` found
+"jupyterlab/upgrade_extension.py" = ["T201"]
+# RUF012 Mutable class attributes should be annotated with `typing.ClassVar`
+"packages/services/examples/node/main.py" = ["RUF012"]
+# T201 `print` found
+"scripts/i18n_check.py" = ["T201"]
diff --git a/release/Dockerfile b/release/Dockerfile
deleted file mode 100644
index d5f21df3bc1b..000000000000
--- a/release/Dockerfile
+++ /dev/null
@@ -1,16 +0,0 @@
-FROM python:3
-
-WORKDIR /usr/src/app
-
-ARG GIT_AUTHOR_NAME
-ARG GIT_AUTHOR_EMAIL
-
-ENV GIT_AUTHOR_NAME=$GIT_AUTHOR_NAME
-ENV GIT_AUTHOR_EMAIL=$GIT_AUTHOR_EMAIL
-
-RUN git config --global user.name "$GIT_AUTHOR_NAME"
-RUN git config --global user.email "$GIT_AUTHOR_EMAIL"
-
-RUN apt-get update && apt-get install -y npm twine
-
-CMD ["bash"]
diff --git a/scripts/build_docker.sh b/scripts/build_docker.sh
deleted file mode 100755
index b4884685bc98..000000000000
--- a/scripts/build_docker.sh
+++ /dev/null
@@ -1,11 +0,0 @@
-#! /bin/sh
-# This script build the JupyterLab image
-if [ -d ${PWD}/packages ]; then
-    echo Create package.json files archive
-    tar cf /tmp/package_json.tar.gz package.json packages/*/package.json
-    cp /tmp/package_json.tar.gz ${PWD}
-    echo Build JupyterLab docker
-    docker build -f Dockerfile -t jupyterlab-dev ${PWD}
-else
-    echo You need to run this script from the JupyterLab root folder
-fi
\ No newline at end of file
diff --git a/scripts/ci_install.ps1 b/scripts/ci_install.ps1
index 53770ca7d0e7..f2c1b6d0aae7 100644
--- a/scripts/ci_install.ps1
+++ b/scripts/ci_install.ps1
@@ -1,7 +1,8 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-$ErrorActionPreference = 'stop'
+$Env:YARN_ENABLE_GLOBAL_CACHE = "1"
+$ErrorActionPreference = "stop"
 
 # create jupyter base dir (needed for config retrieval)
 New-Item -Path $Env:USERPROFILE\.jupyter -ItemType "directory" -Force
@@ -14,13 +15,16 @@ pip --version
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
 # Show a verbose install if the install fails, for debugging
-pip install -e ".[test]" || pip install -v -e ".[test]"
+pip install -e ".[dev,test]" || pip install -v -e ".[dev,test]"
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
-jlpm versions
+# next two lines equivalent to deprecated `yarn versions` cmd from yarn@1.x
+jlpm --version
+jlpm node -p process.versions
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
-jlpm config current
+# print current yarn config info
+jlpm config
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
 jupyter lab path
@@ -30,14 +34,4 @@ jupyter server extension enable jupyterlab
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 # TODO: batch script grepping
 
-# TODO: remove when we no longer support classic notebook
-jupyter serverextension enable jupyterlab
-if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
-# TODO: batch script grepping
-
-if ($Env:GROUP -eq "integrity") {
-    pip install notebook==4.3.1
-    if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
-}
-
 if ((Test-Path -LiteralPath variable:\LASTEXITCODE)) { exit $LASTEXITCODE }
diff --git a/scripts/ci_install.sh b/scripts/ci_install.sh
index f3e6a1acb661..e53e1943fd6e 100755
--- a/scripts/ci_install.sh
+++ b/scripts/ci_install.sh
@@ -5,6 +5,13 @@
 set -ex
 set -o pipefail
 
+# use a single global cache dir
+export YARN_ENABLE_GLOBAL_CACHE=1
+
+# display verbose output for pkg builds run during `jlpm install`
+export YARN_ENABLE_INLINE_BUILDS=1
+
+
 # Building should work without yarn installed globally, so uninstall the
 # global yarn installed by default.
 if [ $OSTYPE == "Linux" ]; then
@@ -23,21 +30,10 @@ git config --global user.email foo@bar.com
 pip install -q --upgrade pip --user
 pip --version
 # Show a verbose install if the install fails, for debugging
-pip install -e ".[test]" || pip install -v -e ".[test]"
-jlpm versions
-jlpm config current
-
-# TODO: remove when we no longer support classic notebook
-jupyter serverextension enable jupyterlab
-jupyter serverextension list 1>serverextensions 2>&1
-cat serverextensions
-cat serverextensions | grep -i "jupyterlab.*enabled"
-cat serverextensions | grep -i "jupyterlab.*OK"
-rm serverextensions
-
-if [[ $GROUP == integrity ]]; then
-    pip install notebook==4.3.1
-fi
+pip install -e ".[dev,test]" || pip install -v -e ".[dev,test]"
+yarn --version
+node -p process.versions
+jlpm config
 
 if [[ $GROUP == nonode ]]; then
     # Build the wheel
diff --git a/scripts/ci_script.ps1 b/scripts/ci_script.ps1
index df8ae3b015e9..feec93b500a6 100644
--- a/scripts/ci_script.ps1
+++ b/scripts/ci_script.ps1
@@ -1,14 +1,20 @@
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
-$ErrorActionPreference = 'stop'
+$Env:YARN_ENABLE_GLOBAL_CACHE = "1"
+$ErrorActionPreference = "stop"
 
 python -c "from jupyterlab.commands import build_check; build_check()"
 if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
 if ($Env:GROUP -eq "python") {
+    $Env:JUPYTERLAB_DIR = "$Env:HOME/share/jupyter/lab/"
+    mkdir $Env:JUPYTERLAB_DIR -ea 0
+
+    $Env:YARN_ENABLE_IMMUTABLE_INSTALLS = 1
     jupyter lab build --debug
     if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
+    Remove-Item Env:\YARN_ENABLE_IMMUTABLE_INSTALLS
 
     # Run the python tests
     python -m pytest
@@ -20,8 +26,8 @@ if ($Env:GROUP -eq "integrity") {
     jlpm run integrity --force
     if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
-    # Check yarn.lock file
-    jlpm check --integrity
+    # Validate the project
+    jlpm install --immutable --immutable-cache
     if ($LASTEXITCODE -ne 0) { throw "Command failed. See above errors for details" }
 
     # Run a browser check in dev mode
diff --git a/scripts/ci_script.sh b/scripts/ci_script.sh
index edd6e115a530..7272057148c4 100755
--- a/scripts/ci_script.sh
+++ b/scripts/ci_script.sh
@@ -6,13 +6,25 @@
 set -ex
 set -o pipefail
 
+# use a single global cache dir
+export YARN_ENABLE_GLOBAL_CACHE=1
+
+# display verbose output for pkg builds run during `jlpm install`
+export YARN_ENABLE_INLINE_BUILDS=1
+
+
 if [[ $GROUP != nonode ]]; then
     python -c "from jupyterlab.commands import build_check; build_check()"
 fi
 
 
 if [[ $GROUP == python ]]; then
-    jupyter lab build --debug
+    export JUPYTERLAB_DIR="${HOME}/share/jupyter/lab/"
+    mkdir -p $JUPYTERLAB_DIR
+
+    # the env var ensures that `yarn.lock` in app dir does not change on a simple `jupyter lab build` call
+    YARN_ENABLE_IMMUTABLE_INSTALLS=1 jupyter lab build --debug --minimize=False
+
     # Run the python tests
     python -m pytest
 fi
@@ -20,13 +32,9 @@ fi
 
 if [[ $GROUP == js* ]]; then
 
-    if [[ $GROUP == "js-testutils" ]]; then
-        pushd testutils
-    else
-        # extract the group name
-        export PKG="${GROUP#*-}"
-        pushd packages/${PKG}
-    fi
+    # extract the group name
+    export PKG="${GROUP#*-}"
+    pushd packages/${PKG}
 
     jlpm run build:test; true
 
@@ -39,12 +47,9 @@ fi
 
 if [[ $GROUP == docs ]]; then
     # Build the docs (includes API docs)
+    python -m pip install .[docs]
     pushd docs
-    conda env create -f environment.yml
-    conda init --all
-    source $CONDA/bin/activate jupyterlab_documentation
     make html
-    conda deactivate
     popd
 fi
 
@@ -52,10 +57,16 @@ fi
 if [[ $GROUP == integrity ]]; then
     # Run the integrity script first
     jlpm run integrity --force
-
-    # Check yarn.lock file
-    jlpm check --integrity
-
+    # Validate the project
+    jlpm install --immutable  --immutable-cache
+    jlpm dlx yarn-berry-deduplicate --strategy fewerHighest
+    # Here we should not be stringent as yarn may clean
+    # output of `yarn-berry-deduplicate`
+    jlpm install
+    if [[ "$(git status --porcelain | wc -l | sed -e "s/^[[:space:]]*//" -e "s/[[:space:]]*$//")" != "0" ]]; then
+        git diff
+        exit 1
+    fi
     # Run a browser check in dev mode
     jlpm run build
     python -m jupyterlab.browser_check --dev-mode
@@ -64,7 +75,15 @@ fi
 
 if [[ $GROUP == lint ]]; then
     # Lint our files.
-    jlpm run lint:check || (echo 'Please run `jlpm run lint` locally and push changes' && exit 1)
+    jlpm run prettier:check || (echo 'Please run `jlpm run prettier` locally and push changes' && exit 1)
+    jlpm run eslint:check || (echo 'Please run `jlpm run eslint` locally and push changes' && exit 1)
+    jlpm run eslint:check:typed || (echo echo 'Please run `jlpm run eslint:typed` locally and push changes' && exit 1)
+    jlpm run stylelint:check || (echo 'Please run `jlpm run stylelint` locally and push changes' && exit 1)
+
+    # Python checks
+    black --check --diff --color .
+    ruff .
+    pipx run 'validate-pyproject[all]' pyproject.toml
 fi
 
 
@@ -72,26 +91,14 @@ if [[ $GROUP == integrity2 ]]; then
     # Run the integrity script to link binary files
     jlpm integrity
 
-    # Check the manifest
-    check-manifest -v
-
     # Build the packages individually.
     jlpm run build:src
 
     # Make sure we can build for release
     jlpm run build:dev:prod:release
 
-    # Make sure the storybooks build.
-    # Storybook is drop in JLab 4 as unused by active maintainers
-    # As NodeJS 18 is breaking storybook configuration, this test is removed from the CI.
-    # jlpm run build:storybook
-
-    jlpm config set prefix ~/.yarn
-
     # Make sure we have CSS that can be converted with postcss
-    jlpm global add postcss postcss-cli
-
-    ~/.yarn/bin/postcss packages/**/style/*.css --dir /tmp
+    jlpm dlx -p postcss -p postcss-cli postcss packages/**/style/*.css --dir /tmp --config scripts/postcss.config.js
 
     # run twine check on the python build assets.
     # this must be done before altering any versions below.
@@ -117,7 +124,7 @@ if [[ $GROUP == integrity3 ]]; then
     jlpm bumpversion release --force # switch to rc
     jlpm bumpversion build --force
     jlpm bumpversion next --force
-    VERSION=$(python setup.py --version)
+    VERSION=$(hatch version)
     if [[ $VERSION != *rc2 ]]; then exit 1; fi
 
     # make sure we can patch release
@@ -152,6 +159,7 @@ if [[ $GROUP == release_test ]]; then
     node buildutils/lib/local-repository.js stop
 fi
 
+
 if [[ $GROUP == examples ]]; then
     # Run the integrity script to link binary files
     jlpm integrity
@@ -202,11 +210,11 @@ if [[ $GROUP == usage ]]; then
     jupyter labextension build extension
 
     # Test develop script with hyphens and underscores in the module name
-    pip install -e test-hyphens
+    python -m pip install -e test-hyphens
     jupyter labextension develop test-hyphens --overwrite --debug
-    pip install -e test_no_hyphens
+    python -m pip install -e test_no_hyphens
     jupyter labextension develop test_no_hyphens --overwrite --debug
-    pip install -e test-hyphens-underscore
+    python -m pip install -e test-hyphens-underscore
     jupyter labextension develop test-hyphens-underscore --overwrite --debug
 
     python -m jupyterlab.browser_check
@@ -241,12 +249,6 @@ if [[ $GROUP == usage ]]; then
     jupyter labextension list -h
     jupyter labextension enable -h
     jupyter labextension disable -h
-    # Make sure we can add and remove a sibling package.
-    # jlpm run add:sibling jupyterlab/tests/mock_packages/extension
-    # jlpm run build
-    # jlpm run remove:package extension
-    # jlpm run build
-    # jlpm run integrity --force  # Should have a clean tree now
 
     # Test cli tools
     jlpm run get:dependency mocha
@@ -257,30 +259,8 @@ if [[ $GROUP == usage ]]; then
     jlpm run get:dependency react-native
 
     # Use the extension upgrade script
-    pip install cookiecutter
+    python -m pip install copier jinja2-time "pydantic<2"
     python -m jupyterlab.upgrade_extension --no-input jupyterlab/tests/mock_packages/extension
-
-    # Test theme creation - make sure we can add it as a package, build,
-    # and run browser
-    pip install -q pexpect
-    python scripts/create_theme.py
-    mv foo packages
-    jlpm run integrity
-    jlpm run build:packages
-    jlpm run build:dev
-    python -m jupyterlab.browser_check --dev-mode
-    jlpm run remove:package foo
-    jlpm run integrity
-
-
-    # Make sure we can run JupyterLab under classic notebook
-    # It is not possible to run JupyterLab under classic notebook with Jupyter Server v2 installed.
-    pip install -U "jupyter_server<2.0.0"
-    python -m jupyterlab.browser_check
-    # For unknown reason, enabling manually the BrowserApp is needed lately
-    jupyter serverextension enable --sys-prefix --py jupyterlab.browser_check
-    jupyter serverextension list
-    python -m jupyterlab.browser_check --notebook
 fi
 
 
@@ -313,26 +293,21 @@ if [[ $GROUP == usage2 ]]; then
     python -m jupyterlab.browser_check --watch
 
     # Make sure we can non-dev install.
-    virtualenv -p $(which python3) test_install
-    ./test_install/bin/pip install -q ".[test]"  # this populates <sys_prefix>/share/jupyter/lab
-
-    ./test_install/bin/jupyter server extension list 1>serverextensions 2>&1
-    cat serverextensions
-    cat serverextensions | grep -i "jupyterlab.*enabled"
-    cat serverextensions | grep -i "jupyterlab.*OK"
+    TEST_INSTALL_PATH="${HOME}/test_install"
+    virtualenv -p $(which python3) $TEST_INSTALL_PATH
+    $TEST_INSTALL_PATH/bin/pip install -q ".[dev,test]"  # this populates <sys_prefix>/share/jupyter/lab
 
-    # TODO: remove when we no longer support classic notebook
-    ./test_install/bin/jupyter serverextension list 1>serverextensions 2>&1
+    $TEST_INSTALL_PATH/bin/jupyter server extension list 1>serverextensions 2>&1
     cat serverextensions
     cat serverextensions | grep -i "jupyterlab.*enabled"
     cat serverextensions | grep -i "jupyterlab.*OK"
 
-    ./test_install/bin/python -m jupyterlab.browser_check
+    $TEST_INSTALL_PATH/bin/python -m jupyterlab.browser_check
     # Make sure we can run the build
-    ./test_install/bin/jupyter lab build
+    $TEST_INSTALL_PATH/bin/jupyter lab build
 
     # Make sure we can start and kill the lab server
-    ./test_install/bin/jupyter lab --no-browser &
+    $TEST_INSTALL_PATH/bin/jupyter lab --no-browser &
     TASK_PID=$!
     # Make sure the task is running
     ps -p $TASK_PID || exit 1
@@ -341,9 +316,9 @@ if [[ $GROUP == usage2 ]]; then
     wait $TASK_PID
 
     # Check the labhubapp
-    ./test_install/bin/pip install jupyterhub
+    $TEST_INSTALL_PATH/bin/pip install jupyterhub
     export JUPYTERHUB_API_TOKEN="mock_token"
-    ./test_install/bin/jupyter-labhub --HubOAuth.oauth_client_id="mock_id" &
+    $TEST_INSTALL_PATH/bin/jupyter-labhub --HubOAuth.oauth_client_id="mock_id" &
     TASK_PID=$!
     unset JUPYTERHUB_API_TOKEN
     # Make sure the task is running
@@ -399,7 +374,7 @@ if [[ $GROUP == interop ]]; then
     popd
     pushd provider
     jupyter labextension build .
-    pip install .
+    python -m pip install .
     popd
     pushd consumer
     jupyter labextension install .
@@ -423,7 +398,7 @@ if [[ $GROUP == interop ]]; then
     popd
     pushd consumer
     jupyter labextension build .
-    pip install .
+    python -m pip install .
     popd
     jupyter labextension list 1>labextensions 2>&1
     cat labextensions | grep -q "@jupyterlab/mock-consumer.*OK"
@@ -447,7 +422,7 @@ if [[ $GROUP == interop ]]; then
     # if installed after
     jupyter labextension install .
     jupyter labextension build .
-    pip install .
+    python -m pip install .
     popd
     jupyter labextension list 1>labextensions 2>&1
     cat labextensions | grep -q "@jupyterlab/mock-consumer.*OK"
diff --git a/scripts/create_theme.py b/scripts/create_theme.py
deleted file mode 100644
index 5d323e99138a..000000000000
--- a/scripts/create_theme.py
+++ /dev/null
@@ -1,16 +0,0 @@
-# coding: utf-8
-"""JupyterLab command handler"""
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-import pexpect
-
-child = pexpect.spawn("node buildutils/lib/create-theme.js")
-child.expect("name:")
-child.sendline("foo")
-child.expect("title:")
-child.sendline("Foo")
-child.expect("description:")
-child.sendline("foo theme")
-child.expect("Created new theme")
diff --git a/scripts/docs_push.sh b/scripts/docs_push.sh
deleted file mode 100644
index e3aa343741df..000000000000
--- a/scripts/docs_push.sh
+++ /dev/null
@@ -1,14 +0,0 @@
-
-#!/bin/bash
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-jlpm
-jlpm build:packages
-jlpm docs
-cd docs/api
-git init
-touch .nojekyll  # disable jekyll
-git add .
-git commit -m "Deploy to GitHub Pages"
-git push --force "https://github.com/jupyterlab/jupyterlab" master:gh-pages
diff --git a/scripts/generate_changelog.py b/scripts/generate_changelog.py
deleted file mode 100644
index 83f6672fba2c..000000000000
--- a/scripts/generate_changelog.py
+++ /dev/null
@@ -1,32 +0,0 @@
-""" Generate a changelog for JupyterLab from the GitHub releases """
-
-# Copyright (c) Jupyter Development Team.
-# Distributed under the terms of the Modified BSD License.
-
-import re
-
-import dateutil.parser
-import requests
-
-# Get the list of releases.
-r = requests.get("https://api.github.com/repos/jupyterlab/jupyterlab/releases")
-
-if r.status_code == 200:
-    releases = r.json()
-    with open("CHANGELOG.md", "w") as f:
-        f.write("# JupyterLab Changelog\n\n")
-        for release in releases:
-            name = release["name"]
-            tag_name = release["tag_name"]
-            tag_url = release["html_url"]
-            tag_date = dateutil.parser.parse(release["published_at"])
-            notes = release["body"].replace("\r\n", "\n")
-            notes = re.sub(
-                r"#([0-9]+)", r"[#\1](https://github.com/jupyterlab/jupyterlab/issues/\1)", notes
-            )
-
-            title = f"{name} ({tag_name})" if name != tag_name else name
-            f.write(f"## [{title}]({tag_url})\n")
-            f.write(f'#### {tag_date.strftime("%b %d, %Y")}\n')
-            f.write(notes)
-            f.write("\n\n")
diff --git a/scripts/i18n_check.py b/scripts/i18n_check.py
index 6db3671dbdb5..4e6502e50771 100644
--- a/scripts/i18n_check.py
+++ b/scripts/i18n_check.py
@@ -19,12 +19,12 @@
             wrapwidth=100000,
         )
 
-    hash = sha256()
+    hash_ = sha256()
     # Use only the context and the id as the position may changed without impact
     # Sort the entry because the order in the POT file may changed (likely because code position changed)
-    for entry in sorted(map(lambda e: f"{e.msgctxt!s} {e.msgid!s}", pot)):
-        hash.update(entry.encode("utf-8"))
+    for entry in sorted(map(lambda e: f"{e.msgctxt!s} {e.msgid!s}", pot)):  # noqa
+        hash_.update(entry.encode("utf-8"))
 
-    proof = hash.hexdigest()
+    proof = hash_.hexdigest()
 
     print(proof)
diff --git a/scripts/milestone_check.py b/scripts/milestone_check.py
index 905a4c30bf3d..0999e40067c2 100644
--- a/scripts/milestone_check.py
+++ b/scripts/milestone_check.py
@@ -26,7 +26,7 @@
     "2.1": "origin/2.1.x --not origin/2.0.x",
     "2.2": "origin/2.2.x --not origin/2.1.x",
     # 6507205805 is a commit in the debugger ancestor tree before merging
-    "3.0": "origin/master ^origin/2.2.x ^6507205805",
+    "3.0": "origin/main ^origin/2.2.x ^6507205805",
 }
 
 try:
@@ -35,27 +35,27 @@
     print(
         "Error: set the environment variable GITHUB_TOKEN to a GitHub authentication token (see https://github.com/settings/tokens)"
     )
-    exit(1)
+    sys.exit(1)
 
-if len(sys.argv) != 2:
+if len(sys.argv) != 2:  # noqa
     print("Error: exactly one argument expected, the milestone.")
-    exit(1)
+    sys.exit(1)
 
 MILESTONE = sys.argv[1]
 
 if MILESTONE not in ranges:
     print(
-        "Error: I do not know about milestone %r. Possible milestones are %r"
-        % (MILESTONE, list(ranges.keys()))
+        f"Error: I do not know about milestone {MILESTONE!r}. Possible milestones are {list(ranges.keys())!r}"
     )
-    exit(1)
+    sys.exit(1)
 
 
 out = subprocess.run(
-    "git log {} --format='%H,%cE,%s'".format(ranges[MILESTONE]),
-    shell=True,
+    f"git log {ranges[MILESTONE]} --format='%H,%cE,%s'",
+    shell=True,  # noqa S602
     encoding="utf8",
     stdout=subprocess.PIPE,
+    check=True,
 )
 commits = {i[0]: (i[1], i[2]) for i in (x.split(",", 2) for x in out.stdout.splitlines())}
 
@@ -102,19 +102,19 @@
 cursor = None
 while True:
     json["variables"]["cursor"] = cursor
-    r = requests.post(url=url, json=json, headers=headers)
+    r = requests.post(url=url, json=json, headers=headers, timeout=120)
     results = r.json()["data"]["search"]
     total_prs = results["issueCount"]
 
     pr_list = results["nodes"]
     for pr in pr_list:
-        if pr["commits"]["totalCount"] > 100:
+        if pr["commits"]["totalCount"] > 100:  # noqa
             large_prs.append(pr["number"])
             continue
             # TODO fetch commits
         prs[pr["number"]] = {
             "mergeCommit": pr["mergeCommit"]["oid"],
-            "commits": set(i["commit"]["oid"] for i in pr["commits"]["nodes"]),
+            "commits": {i["commit"]["oid"] for i in pr["commits"]["nodes"]},
         }
 
     has_next_page = results["pageInfo"]["hasNextPage"]
@@ -156,9 +156,9 @@
     prjson["variables"]["pr"] = prnumber
     pr_commits = set()
     while True:
-        r = requests.post(url=url, json=prjson, headers=headers)
+        r = requests.post(url=url, json=prjson, headers=headers, timeout=120)
         pr = r.json()["data"]["repository"]["pullRequest"]
-        assert pr["number"] == prnumber
+        assert pr["number"] == prnumber  # noqa
         total_commits = pr["commits"]["totalCount"]
         pr_commits.update(i["commit"]["oid"] for i in pr["commits"]["nodes"])
         has_next_page = results["pageInfo"]["hasNextPage"]
@@ -177,7 +177,7 @@
 
 
 # Check we got all PRs
-assert len(prs) == total_prs
+assert len(prs) == total_prs  # noqa
 
 # Reverse dictionary
 commits_to_prs = {}
@@ -206,7 +206,7 @@
 if len(prs_not_represented) > 0:
     print(
         """
-PRs that are in the milestone, but have no commits in the version range. 
+PRs that are in the milestone, but have no commits in the version range.
 These PRs probably belong in a different milestone.
 """
     )
@@ -228,10 +228,10 @@
     print(
         """The following commits are not included in any PR on this milestone.
 This probably means the commit's PR needs to be assigned to this milestone,
-or the commit was pushed to master directly.
+or the commit was pushed to main directly.
 """
     )
-    print("\n".join("%s %s %s" % (c, commits[c][0], commits[c][1]) for c in notfound))
+    print("\n".join(f"{c} {commits[c][0]} {commits[c][1]}" for c in notfound))
     prs_to_check = [
         c
         for c in notfound
@@ -243,7 +243,7 @@
             "Try checking these PRs. They probably should be in the milestone, but probably aren't:"
         )
         print()
-        print("\n".join("%s %s" % (c, commits[c][1]) for c in prs_to_check))
+        print("\n".join(f"{c} {commits[c][1]}" for c in prs_to_check))
 else:
     print(
         "Congratulations! All commits in the commit history are included in some PR in this milestone."
diff --git a/scripts/postcss.config.js b/scripts/postcss.config.js
new file mode 100644
index 000000000000..9efaf920aa7d
--- /dev/null
+++ b/scripts/postcss.config.js
@@ -0,0 +1,10 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+// for the integrity2 CI in scripts/ci_script.sh
+module.exports = {
+  // use a postcss plugin that already exists in the top-level project
+  plugins: [require('postcss-selector-parser')]
+};
diff --git a/scripts/release_prep.sh b/scripts/release_prep.sh
index bb28cf614246..5253b82fa55a 100755
--- a/scripts/release_prep.sh
+++ b/scripts/release_prep.sh
@@ -1,3 +1,8 @@
+#!/bin/bash
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
+
 # Prep a fresh conda environment in a temporary folder for a release
 if [[ $# -ne 1 ]]; then
     echo "Specify branch"
diff --git a/scripts/release_test.sh b/scripts/release_test.sh
index 2042edc224ba..a39a958b5651 100755
--- a/scripts/release_test.sh
+++ b/scripts/release_test.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+# Copyright (c) Jupyter Development Team.
+# Distributed under the terms of the Modified BSD License.
+
 
 # Test a release wheel in a fresh conda environment with and without installed
 # extensions
@@ -19,7 +22,6 @@ python -m pip install $(ls dist/*.whl)
 
 cp examples/notebooks/*.ipynb $TEST_DIR/
 cp -r jupyterlab/tests/mock_packages $TEST_DIR
-
 pushd $TEST_DIR
 
 ls -ltr
@@ -29,6 +31,8 @@ JLAB_BROWSER_CHECK_OUTPUT=${OUTPUT_DIR} python -m jupyterlab.browser_check
 # Remove node_modules to get a clean directory and build the extensions
 rm -rf ./mock_packages/mimeextension/node_modules
 rm -rf ./mock_packages/extension/node_modules
+
+export YARN_NPM_REGISTRY_SERVER="http://0.0.0.0:4873"
 jupyter labextension install ./mock_packages/mimeextension --no-build --debug
 jupyter labextension develop ./mock_packages/extension --debug
 jupyter labextension build ./mock_packages/extension --debug
diff --git a/scripts/watch_dev.py b/scripts/watch_dev.py
index cbde28ecfb36..41edc7888b77 100644
--- a/scripts/watch_dev.py
+++ b/scripts/watch_dev.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
diff --git a/scripts/watch_packages.py b/scripts/watch_packages.py
index 246d6c5aab93..ce4759a6d9f7 100644
--- a/scripts/watch_packages.py
+++ b/scripts/watch_packages.py
@@ -1,5 +1,3 @@
-# coding: utf-8
-
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
 
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index e9413f5c3dfc..000000000000
--- a/setup.cfg
+++ /dev/null
@@ -1,71 +0,0 @@
-[metadata]
-name = jupyterlab
-version = attr: jupyterlab._version.__version__
-description = JupyterLab computational environment
-long_description = file: README.md
-long_description_content_type = text/markdown
-license_file = LICENSE
-author = Jupyter Development Team
-author_email = jupyter@googlegroups.com
-url = https://jupyter.org
-platforms = Linux, Mac OS X, Windows
-keywords = ipython, jupyter
-classifiers =
-    Development Status :: 5 - Production/Stable
-    Framework :: Jupyter
-    Framework :: Jupyter :: JupyterLab
-    Framework :: Jupyter :: JupyterLab :: 3
-    Intended Audience :: Developers
-    Intended Audience :: System Administrators
-    Intended Audience :: Science/Research
-    License :: OSI Approved :: BSD License
-    Programming Language :: Python
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
-    Programming Language :: Python :: 3.9
-    Programming Language :: Python :: 3.10
-    Programming Language :: Python :: 3.11
-
-[options]
-zip_safe = False
-include_package_data = True
-packages = find:
-python_requires = >=3.7
-install_requires =
-    ipython
-    packaging
-    tornado>=6.1.0
-    jupyter_core
-    jupyterlab_server~=2.19
-    jupyter_server @ git+https://github.com/spotinst/jupyter_server.git@v2.6.0-ocean
-    jupyter_ydoc~=0.2.4
-    jupyter_server_ydoc~=0.8.0
-    nbclassic
-    notebook<7
-    jinja2>=2.1
-    tomli;python_version<"3.11"
-
-[options.extras_require]
-test =
-    check-manifest
-    coverage
-    jupyterlab_server[test]
-    pre-commit
-    pytest>=6.0
-    pytest-cov
-    pytest-console-scripts
-    pytest-check-links>=0.5
-    pytest-jupyter>=0.5.3
-    requests
-    requests_cache
-    virtualenv
-
-[options.entry_points]
-console_scripts =
-    jupyter-lab = jupyterlab.labapp:main
-    jupyter-labextension = jupyterlab.labextensions:main
-    jupyter-labhub = jupyterlab.labhubapp:main
-    jlpm = jupyterlab.jlpmapp:main
-
-[options.packages.find]
-exclude = ['docs*', 'examples*']
diff --git a/setup.py b/setup.py
index 3f67e8b7689e..4abca77c3086 100644
--- a/setup.py
+++ b/setup.py
@@ -1,100 +1,5 @@
-#!/usr/bin/env python
-# coding: utf-8
-
-import json
-import os
-import os.path as osp
-import subprocess
-import sys
-
 # Copyright (c) Jupyter Development Team.
 # Distributed under the terms of the Modified BSD License.
-from os.path import join as pjoin
-
-from setuptools import setup
-
-NAME = "jupyterlab"
-HERE = osp.dirname(osp.abspath(__file__))
-
-ensured_targets = [
-    "static/package.json",
-    "schemas/@jupyterlab/shortcuts-extension/shortcuts.json",
-    "themes/@jupyterlab/theme-light-extension/index.css",
-]
-ensured_targets = [osp.join(HERE, NAME, t) for t in ensured_targets]
-
-data_files_spec = [
-    ("share/jupyter/lab/static", f"{NAME}/static", "**"),
-    ("share/jupyter/lab/schemas", f"{NAME}/schemas", "**"),
-    ("share/jupyter/lab/themes", f"{NAME}/themes", "**"),
-    (
-        "etc/jupyter/jupyter_server_config.d",
-        "jupyter-config/jupyter_server_config.d",
-        f"{NAME}.json",
-    ),
-    (
-        "etc/jupyter/jupyter_notebook_config.d",
-        "jupyter-config/jupyter_notebook_config.d",
-        f"{NAME}.json",
-    ),
-]
-
-
-def post_dist():
-    from jupyter_packaging import get_version
-    from packaging.version import Version
-
-    target = pjoin(HERE, NAME, "static", "package.json")
-    with open(target) as fid:
-        version = json.load(fid)["jupyterlab"]["version"]
-
-    if Version(version) != Version(get_version(f"{NAME}/_version.py")):
-        raise ValueError("Version mismatch, please run `build:update`")
-
-
-try:
-    from jupyter_packaging import get_data_files, npm_builder, wrap_installers
-
-    npm = ["node", pjoin(HERE, NAME, "staging", "yarn.js")]
-    # In develop mode, just run yarn, unless this is an sdist.
-    if os.path.exists(os.path.join(HERE, "buildutils")):
-        builder = npm_builder(build_cmd=None, npm=npm, force=True)
-
-        def post_develop(*args, **kwargs):
-            builder(*args, **kwargs)
-            try:
-                import pre_commit
-            except ImportError:
-                print(
-                    "Please install pre-commit and the associated hooks; using the following commands:"
-                )
-                print("pip install pre-commit")
-                print("python -m pre_commit install")
-                print("python -m pre_commit install --hook-type pre-push")
-
-            else:
-                try:
-                    subprocess.run([sys.executable, "-m", "pre_commit", "install"])
-                    subprocess.run(
-                        [sys.executable, "-m", "pre_commit", "install", "--hook-type", "pre-push"]
-                    )
-                except Exception:
-                    # no-op
-                    pass
-
-        cmdclass = wrap_installers(
-            post_develop=post_develop, post_dist=post_dist, ensured_targets=ensured_targets
-        )
-    else:
-        cmdclass = wrap_installers(post_dist=post_dist, ensured_targets=ensured_targets)
-
-    setup_args = dict(
-        cmdclass=cmdclass,
-        data_files=get_data_files(data_files_spec)
-    )
-except ImportError:
-    setup_args = dict()
-
 
-if __name__ == "__main__":
-    setup(**setup_args)
+# setup.py shim for use with applications that require it.
+__import__("setuptools").setup()
diff --git a/testutils/babel.config.js b/testutils/babel.config.js
deleted file mode 100644
index 1b995256375e..000000000000
--- a/testutils/babel.config.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('./lib/babel.config');
diff --git a/testutils/jest.config.js b/testutils/jest.config.js
deleted file mode 100644
index 7a7c7265b191..000000000000
--- a/testutils/jest.config.js
+++ /dev/null
@@ -1,2 +0,0 @@
-const func = require('./lib/jest-config');
-module.exports = func(__dirname);
diff --git a/testutils/package.json b/testutils/package.json
index 49c5c5ea748c..0692288955f1 100644
--- a/testutils/package.json
+++ b/testutils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@jupyterlab/testutils",
-  "version": "3.6.6",
+  "version": "4.0.8",
   "description": "JupyterLab - Test Utilities",
   "homepage": "https://github.com/jupyterlab/jupyterlab",
   "bugs": {
@@ -22,54 +22,24 @@
     "lib/*.js.map",
     "lib/*.js",
     "default*.json",
-    "tsconfigtestbase.json"
+    "tsconfigtestbase.json",
+    "src/**/*.{ts,tsx}"
   ],
   "scripts": {
     "build": "tsc -b",
-    "build:all": "npm run build",
-    "build:test": "tsc --build tsconfig.test.json",
     "clean": "rimraf lib && rimraf tsconfig.tsbuildinfo",
-    "test": "jest",
-    "test:cov": "jest --collect-coverage",
-    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand",
-    "test:debug:watch": "node --inspect-brk node_modules/.bin/jest --runInBand --watch",
     "watch": "tsc -b --watch"
   },
   "dependencies": {
-    "@jupyterlab/apputils": "^3.6.6",
-    "@jupyterlab/cells": "^3.6.6",
-    "@jupyterlab/codeeditor": "^3.6.6",
-    "@jupyterlab/codemirror": "^3.6.6",
-    "@jupyterlab/coreutils": "^5.6.6",
-    "@jupyterlab/docregistry": "^3.6.6",
-    "@jupyterlab/nbformat": "^3.6.6",
-    "@jupyterlab/notebook": "^3.6.6",
-    "@jupyterlab/rendermime": "^3.6.6",
-    "@jupyterlab/services": "^6.6.6",
-    "@lumino/algorithm": "^1.9.0",
-    "@lumino/coreutils": "^1.11.0",
-    "@lumino/properties": "^1.8.0",
-    "@lumino/signaling": "^1.10.0",
-    "child_process": "~1.0.2",
-    "deepmerge": "^4.2.2",
-    "fs-extra": "^9.0.1",
-    "identity-obj-proxy": "^3.0.0",
-    "jest": "^26.4.2",
-    "jest-junit": "^11.1.0",
-    "jest-raw-loader": "^1.0.1",
-    "jest-summary-reporter": "^0.0.2",
-    "json-to-html": "~0.1.2",
-    "markdown-loader-jest": "^0.1.1",
-    "node-fetch": "^2.6.0",
-    "simulate-event": "~1.4.0",
-    "ts-jest": "^26.3.0"
+    "@jupyterlab/application": "^4.0.8",
+    "@jupyterlab/apputils": "^4.1.8",
+    "@jupyterlab/notebook": "^4.0.8",
+    "@jupyterlab/rendermime": "^4.0.8",
+    "@jupyterlab/testing": "^4.0.8"
   },
   "devDependencies": {
-    "@types/jest": "^26.0.10",
-    "@types/node-fetch": "^2.5.4",
-    "jest-retries": "^1.0.1",
-    "lighthouse": "6.3.0",
-    "typescript": "~4.1.3"
+    "rimraf": "~3.0.0",
+    "typescript": "~5.0.4"
   },
   "publishConfig": {
     "access": "public"
diff --git a/testutils/src/babel.config.ts b/testutils/src/babel.config.ts
index 6c3be4c41b2d..f102cb899b57 100644
--- a/testutils/src/babel.config.ts
+++ b/testutils/src/babel.config.ts
@@ -1,12 +1,8 @@
-module.exports = {
-  presets: [
-    [
-      '@babel/preset-env',
-      {
-        targets: {
-          node: 'current'
-        }
-      }
-    ]
-  ]
-};
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
+import * as config from '@jupyterlab/testing/lib/babel-config';
+
+module.exports = config;
diff --git a/testutils/src/compare-lighthouse.ts b/testutils/src/compare-lighthouse.ts
deleted file mode 100644
index c4fb4e80e5b9..000000000000
--- a/testutils/src/compare-lighthouse.ts
+++ /dev/null
@@ -1,49 +0,0 @@
-/**
- * Compares two files lighthouse outputs, listing changes between the numeric audits.
- *
- * Outputs in Markdown for easy posting in Github.
- */
-import { readFileSync } from 'fs-extra';
-
-const firstFilePath = process.argv[2];
-const secondFilePath = process.argv[3];
-
-console.debug(`\`${firstFilePath}\` -> \`${secondFilePath}\`\n\n`);
-interface IOutput {
-  audits: {
-    [name: string]: {
-      id: string;
-      title: string;
-      description: string;
-      scoreDisplayMode: string;
-      displayValue: string;
-      numericValue: number;
-    };
-  };
-}
-
-const first: IOutput = JSON.parse(readFileSync(firstFilePath).toString());
-const second: IOutput = JSON.parse(readFileSync(secondFilePath).toString());
-
-for (const auditName in first.audits) {
-  const firstAudit = first.audits[auditName];
-
-  // only compare numeric audits
-  if (firstAudit.scoreDisplayMode !== 'numeric') {
-    continue;
-  }
-  const secondAudit = second.audits[auditName];
-  const percentChange =
-    ((secondAudit.numericValue - firstAudit.numericValue) /
-      firstAudit.numericValue) *
-    100;
-
-  if (isNaN(percentChange)) {
-    continue;
-  }
-  console.debug(
-    `**${firstAudit.title}**\n* ${percentChange.toFixed(0)}% Δ\n* ${
-      firstAudit.displayValue
-    } -> ${secondAudit.displayValue}\n* ${firstAudit.description}\n`
-  );
-}
diff --git a/testutils/src/flakyIt.ts b/testutils/src/flakyIt.ts
deleted file mode 100644
index 9d85e274bd23..000000000000
--- a/testutils/src/flakyIt.ts
+++ /dev/null
@@ -1,55 +0,0 @@
-// Adapted from https://github.com/bluzi/jest-retries/blob/01a9713a7379edcfd2d1bccec7c0fbc66d4602da/src/retry.js
-
-// We explicitly reference the jest typings since the jest.d.ts file shipped
-// with jest 26 masks the @types/jest typings
-
-/// <reference types="jest" />
-
-import { sleep } from './common';
-
-/**
- * Run a test function.
- *
- * @param fn The function of the test
- */
-async function runTest(fn: any): Promise<void> {
-  return new Promise((resolve, reject) => {
-    const result = fn((err: Error) => (err ? reject(err) : resolve()));
-
-    if (result && result.then) {
-      result.catch(reject).then(resolve);
-    } else {
-      resolve();
-    }
-  });
-}
-
-/**
- * Run a flaky test with retries.
- *
- * @param name The name of the test
- * @param fn The function of the test
- * @param retries The number of retries
- * @param wait The time to wait in milliseconds between retries
- */
-/* eslint-disable jest/no-export */
-export function flakyIt(name: string, fn: any, retries = 3, wait = 1000): void {
-  test(name, async () => {
-    let latestError;
-    for (let tries = 0; tries < retries; tries++) {
-      try {
-        await runTest(fn);
-        return;
-      } catch (error) {
-        latestError = error;
-        await sleep(wait);
-      }
-    }
-    throw latestError;
-  });
-}
-/* eslint-enable jest/no-export */
-
-flakyIt.only = it.only;
-flakyIt.skip = it.skip;
-flakyIt.todo = it.todo;
diff --git a/testutils/src/index.ts b/testutils/src/index.ts
index 6e10c0f22bc0..6faab0686861 100644
--- a/testutils/src/index.ts
+++ b/testutils/src/index.ts
@@ -1,36 +1,31 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-export { NBTestUtils } from './notebook-utils';
-
-export { defaultRenderMime } from './rendermime';
-
-export { FakeUserManager } from './user';
-
-export { JupyterServer } from './start_jupyter_server';
-
+export { createSessionContext } from '@jupyterlab/apputils/lib/testutils';
 export {
-  testEmission,
-  expectFailure,
-  signalToPromises,
-  signalToPromise,
-  isFulfilled,
-  framePromise,
-  sleep,
-  createSessionContext,
-  createSession,
   createFileContext,
   createFileContextWithKernel,
+  createSession,
+  DocumentWidgetOpenerMock
+} from '@jupyterlab/docregistry/lib/testutils';
+export {
   initNotebookContext,
-  waitForDialog,
+  NBTestUtils
+} from '@jupyterlab/notebook/lib/testutils';
+export { defaultRenderMime } from '@jupyterlab/rendermime/lib/testutils';
+export * as Mock from './mock';
+export { FakeUserManager } from '@jupyterlab/services/lib/testutils';
+export {
   acceptDialog,
   dangerDialog,
   dismissDialog,
-  simulate
-} from './common';
-
-export { flakyIt } from './flakyIt';
-
-import * as Mock from './mock';
-
-export { Mock };
+  expectFailure,
+  framePromise,
+  isFulfilled,
+  JupyterServer,
+  signalToPromise,
+  signalToPromises,
+  sleep,
+  testEmission,
+  waitForDialog
+} from '@jupyterlab/testing';
diff --git a/testutils/src/jest-config.ts b/testutils/src/jest-config.ts
index 970bcb8149ca..ae420f1586d3 100644
--- a/testutils/src/jest-config.ts
+++ b/testutils/src/jest-config.ts
@@ -1,46 +1,8 @@
-import path from 'path';
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
 
-const esModules = [
-  '@jupyter/ydoc',
-  'lib0',
-  'y-protocols',
-  'y-websocket',
-  'yjs'
-].join('|');
+import func from '@jupyterlab/testing/lib/jest-config';
 
-module.exports = function (baseDir: string) {
-  return {
-    preset: 'ts-jest/presets/js-with-babel',
-    moduleNameMapper: {
-      '\\.(css|less|sass|scss)$': 'identity-obj-proxy',
-      '\\.(gif|ttf|eot)$': '@jupyterlab/testutils/lib/jest-file-mock.js'
-    },
-    transform: {
-      '\\.svg$': 'jest-raw-loader',
-      '^.+\\.md?$': 'markdown-loader-jest'
-    },
-    testTimeout: 10000,
-    setupFiles: ['@jupyterlab/testutils/lib/jest-shim.js'],
-    testPathIgnorePatterns: ['/lib/', '/node_modules/'],
-    moduleFileExtensions: [
-      'ts',
-      'tsx',
-      'js',
-      'jsx',
-      'json',
-      'node',
-      'mjs',
-      'cjs'
-    ],
-    transformIgnorePatterns: [`/node_modules/(?!${esModules}).+`],
-    reporters: ['default', 'jest-junit', 'jest-summary-reporter'],
-    coverageReporters: ['json', 'lcov', 'text', 'html'],
-    coverageDirectory: path.join(baseDir, 'coverage'),
-    testRegex: '/test/.*.spec.ts[x]?$',
-    globals: {
-      'ts-jest': {
-        tsconfig: `./tsconfig.test.json`
-      }
-    }
-  };
-};
+module.exports = func;
diff --git a/testutils/src/jest-file-mock.ts b/testutils/src/jest-file-mock.ts
deleted file mode 100644
index 86059f362924..000000000000
--- a/testutils/src/jest-file-mock.ts
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = 'test-file-stub';
diff --git a/testutils/src/json-to-html.d.ts b/testutils/src/json-to-html.d.ts
deleted file mode 100644
index ef066f50e5d0..000000000000
--- a/testutils/src/json-to-html.d.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-// Type definitions for json2html v0.1.2
-// https://github.com/frozzare/json-to-html
-// Definitions by: Steven Silvester <https://github.com/blink1073>
-
-declare module 'json-to-html' {
-  function render(value: any): string;
-  export = render;
-}
diff --git a/testutils/src/mock.ts b/testutils/src/mock.ts
index 2f7566ca1611..d461beb052a9 100644
--- a/testutils/src/mock.ts
+++ b/testutils/src/mock.ts
@@ -1,875 +1,20 @@
 // Copyright (c) Jupyter Development Team.
 // Distributed under the terms of the Modified BSD License.
 
-// We explicitly reference the jest typings since the jest.d.ts file shipped
-// with jest 26 masks the @types/jest typings
-
-/// <reference types="jest" />
-
-import { ISessionContext, SessionContext } from '@jupyterlab/apputils';
-
-import { Context, TextModelFactory } from '@jupyterlab/docregistry';
-
-import {
-  Contents,
-  ContentsManager,
-  Kernel,
-  KernelMessage,
-  KernelSpec,
-  ServerConnection,
-  ServiceManager,
-  Session
-} from '@jupyterlab/services';
-
-import { ArrayIterator } from '@lumino/algorithm';
-
-import { AttachedProperty } from '@lumino/properties';
-
-import { UUID } from '@lumino/coreutils';
-
-import { Signal } from '@lumino/signaling';
-
-import { PathExt } from '@jupyterlab/coreutils';
-
-// The default kernel name
-export const DEFAULT_NAME = 'python3';
-
-export const KERNELSPECS: { [key: string]: KernelSpec.ISpecModel } = {
-  [DEFAULT_NAME]: {
-    argv: [
-      '/Users/someuser/miniconda3/envs/jupyterlab/bin/python',
-      '-m',
-      'ipykernel_launcher',
-      '-f',
-      '{connection_file}'
-    ],
-    display_name: 'Python 3',
-    language: 'python',
-    metadata: {},
-    name: DEFAULT_NAME,
-    resources: {}
-  },
-  irkernel: {
-    argv: [
-      '/Users/someuser/miniconda3/envs/jupyterlab/bin/python',
-      '-m',
-      'ipykernel_launcher',
-      '-f',
-      '{connection_file}'
-    ],
-    display_name: 'R',
-    language: 'python',
-    metadata: {},
-    name: 'irkernel',
-    resources: {}
-  }
-};
-
-export const KERNEL_MODELS: Kernel.IModel[] = [
-  {
-    name: DEFAULT_NAME,
-    id: UUID.uuid4()
-  },
-  {
-    name: 'r',
-    id: UUID.uuid4()
-  },
-  {
-    name: DEFAULT_NAME,
-    id: UUID.uuid4()
-  }
-];
-
-// Notebook Paths for certain kernel name
-export const NOTEBOOK_PATHS: { [kernelName: string]: string[] } = {
-  python3: ['Untitled.ipynb', 'Untitled1.ipynb', 'Untitled2.ipynb'],
-  r: ['Visualization.ipynb', 'Analysis.ipynb', 'Conclusion.ipynb']
-};
-
-/**
- * Forceably change the status of a session context.
- * An iopub message is emitted for the change.
- *
- * @param sessionContext The session context of interest.
- * @param newStatus The new kernel status.
- */
-export function updateKernelStatus(
-  sessionContext: ISessionContext,
-  newStatus: KernelMessage.Status
-) {
-  const kernel = sessionContext.session!.kernel!;
-  (kernel as any).status = newStatus;
-  (sessionContext.statusChanged as any).emit(newStatus);
-  const msg = KernelMessage.createMessage({
-    session: kernel.clientId,
-    channel: 'iopub',
-    msgType: 'status',
-    content: { execution_state: newStatus }
-  });
-  emitIopubMessage(sessionContext, msg);
-}
-
-/**
- * Emit an iopub message on a session context.
- *
- * @param sessionContext The session context
- * @param msg Message created with `KernelMessage.createMessage`
- */
-export function emitIopubMessage(
-  context: ISessionContext,
-  msg: KernelMessage.IIOPubMessage
-): void {
-  const kernel = context!.session!.kernel!;
-  const msgId = Private.lastMessageProperty.get(kernel);
-  (msg.parent_header as any).session = kernel.clientId;
-  (msg.parent_header as any).msg_id = msgId;
-  (kernel.iopubMessage as any).emit(msg);
-}
-
-/**
- * Create a session context given a partial session model.
- *
- * @param model The session model to use.
- */
-export function createSimpleSessionContext(
-  model: Private.RecursivePartial<Session.IModel> = {}
-): ISessionContext {
-  const kernel = new KernelMock({ model: model?.kernel || {} });
-  const session = new SessionConnectionMock({ model }, kernel);
-  return new SessionContextMock({}, session);
-}
-
-/**
- * Clone a kernel connection.
- */
-export function cloneKernel(
-  kernel: Kernel.IKernelConnection
-): Kernel.IKernelConnection {
-  return (kernel as any).clone();
-}
-
-/**
- * A mock kernel object.
- *
- * @param model The model of the kernel
- */
-export const KernelMock = jest.fn<
-  Kernel.IKernelConnection,
-  [Private.RecursivePartial<Kernel.IKernelConnection.IOptions>]
->(options => {
-  const model = { id: 'foo', name: DEFAULT_NAME, ...options.model };
-  options = {
-    clientId: UUID.uuid4(),
-    username: UUID.uuid4(),
-    ...options,
-    model
-  };
-  let executionCount = 0;
-  const spec = Private.kernelSpecForKernelName(model.name)!;
-  const thisObject: Kernel.IKernelConnection = {
-    ...jest.requireActual('@jupyterlab/services'),
-    ...options,
-    ...model,
-    status: 'idle',
-    spec: Promise.resolve(spec),
-    dispose: jest.fn(),
-    clone: jest.fn(() => {
-      const newKernel = Private.cloneKernel(options);
-      newKernel.iopubMessage.connect((_, args) => {
-        iopubMessageSignal.emit(args);
-      });
-      newKernel.statusChanged.connect((_, args) => {
-        (thisObject as any).status = args;
-        statusChangedSignal.emit(args);
-      });
-      return newKernel;
-    }),
-    info: Promise.resolve(Private.getInfo(model!.name!)),
-    shutdown: jest.fn(() => Promise.resolve(void 0)),
-    requestHistory: jest.fn(() => {
-      const historyReply = KernelMessage.createMessage({
-        channel: 'shell',
-        msgType: 'history_reply',
-        session: options.clientId!,
-        username: options.username!,
-        content: {
-          history: [],
-          status: 'ok'
-        }
-      });
-      return Promise.resolve(historyReply);
-    }),
-    restart: jest.fn(() => Promise.resolve(void 0)),
-    requestExecute: jest.fn(options => {
-      const msgId = UUID.uuid4();
-      executionCount++;
-      Private.lastMessageProperty.set(thisObject, msgId);
-      const msg = KernelMessage.createMessage({
-        channel: 'iopub',
-        msgType: 'execute_input',
-        session: thisObject.clientId,
-        username: thisObject.username,
-        msgId,
-        content: {
-          code: options.code,
-          execution_count: executionCount
-        }
-      });
-      iopubMessageSignal.emit(msg);
-      const reply = KernelMessage.createMessage<KernelMessage.IExecuteReplyMsg>(
-        {
-          channel: 'shell',
-          msgType: 'execute_reply',
-          session: thisObject.clientId,
-          username: thisObject.username,
-          msgId,
-          content: {
-            user_expressions: {},
-            execution_count: executionCount,
-            status: 'ok'
-          }
-        }
-      );
-      return new MockShellFuture(reply) as Kernel.IShellFuture<
-        KernelMessage.IExecuteRequestMsg,
-        KernelMessage.IExecuteReplyMsg
-      >;
-    })
-  } as any; // FIXME: fix the typing error this any cast is ignoring
-  // Add signals.
-  const iopubMessageSignal = new Signal<
-    Kernel.IKernelConnection,
-    KernelMessage.IIOPubMessage
-  >(thisObject);
-  const statusChangedSignal = new Signal<
-    Kernel.IKernelConnection,
-    Kernel.Status
-  >(thisObject);
-  const pendingInputSignal = new Signal<Kernel.IKernelConnection, boolean>(
-    thisObject
-  );
-  (thisObject as any).statusChanged = statusChangedSignal;
-  (thisObject as any).iopubMessage = iopubMessageSignal;
-  (thisObject as any).pendingInput = pendingInputSignal;
-  (thisObject as any).hasPendingInput = false;
-  return thisObject;
-});
-
-/**
- * A mock session connection.
- *
- * @param options Addition session options to use
- * @param model A session model to use
- */
-export const SessionConnectionMock = jest.fn<
-  Session.ISessionConnection,
-  [
-    Private.RecursivePartial<Session.ISessionConnection.IOptions>,
-    Kernel.IKernelConnection | null
-  ]
->((options, kernel) => {
-  const name = kernel?.name || options.model?.kernel?.name || DEFAULT_NAME;
-  kernel = kernel || new KernelMock({ model: { name } });
-  const model = {
-    path: 'foo',
-    type: 'notebook',
-    name: 'foo',
-    ...options.model,
-    kernel: kernel!.model
-  };
-  const thisObject: Session.ISessionConnection = {
-    ...jest.requireActual('@jupyterlab/services'),
-    id: UUID.uuid4(),
-    ...options,
-    model,
-    ...model,
-    kernel,
-    dispose: jest.fn(),
-    changeKernel: jest.fn(partialModel => {
-      return Private.changeKernel(kernel!, partialModel!);
-    }),
-    shutdown: jest.fn(() => Promise.resolve(void 0)),
-    setPath: jest.fn(path => {
-      (thisObject as any).path = path;
-      propertyChangedSignal.emit('path');
-      return Promise.resolve();
-    }),
-    setName: jest.fn(name => {
-      (thisObject as any).name = name;
-      propertyChangedSignal.emit('name');
-      return Promise.resolve();
-    }),
-    setType: jest.fn(type => {
-      (thisObject as any).type = type;
-      propertyChangedSignal.emit('type');
-      return Promise.resolve();
-    })
-  } as any; // FIXME: fix the typing error this any cast is ignoring
-  const disposedSignal = new Signal<Session.ISessionConnection, undefined>(
-    thisObject
-  );
-  const propertyChangedSignal = new Signal<
-    Session.ISessionConnection,
-    'path' | 'name' | 'type'
-  >(thisObject);
-  const statusChangedSignal = new Signal<
-    Session.ISessionConnection,
-    Kernel.Status
-  >(thisObject);
-  const connectionStatusChangedSignal = new Signal<
-    Session.ISessionConnection,
-    Kernel.ConnectionStatus
-  >(thisObject);
-  const kernelChangedSignal = new Signal<
-    Session.ISessionConnection,
-    Session.ISessionConnection.IKernelChangedArgs
-  >(thisObject);
-  const iopubMessageSignal = new Signal<
-    Session.ISessionConnection,
-    KernelMessage.IIOPubMessage
-  >(thisObject);
-
-  const unhandledMessageSignal = new Signal<
-    Session.ISessionConnection,
-    KernelMessage.IMessage
-  >(thisObject);
-
-  const pendingInputSignal = new Signal<Session.ISessionConnection, boolean>(
-    thisObject
-  );
-
-  kernel!.iopubMessage.connect((_, args) => {
-    iopubMessageSignal.emit(args);
-  }, thisObject);
-
-  kernel!.statusChanged.connect((_, args) => {
-    statusChangedSignal.emit(args);
-  }, thisObject);
-
-  kernel!.pendingInput.connect((_, args) => {
-    pendingInputSignal.emit(args);
-  }, thisObject);
-
-  (thisObject as any).disposed = disposedSignal;
-  (thisObject as any).connectionStatusChanged = connectionStatusChangedSignal;
-  (thisObject as any).propertyChanged = propertyChangedSignal;
-  (thisObject as any).statusChanged = statusChangedSignal;
-  (thisObject as any).kernelChanged = kernelChangedSignal;
-  (thisObject as any).iopubMessage = iopubMessageSignal;
-  (thisObject as any).unhandledMessage = unhandledMessageSignal;
-  (thisObject as any).pendingInput = pendingInputSignal;
-  return thisObject;
-});
-
-/**
- * A mock session context.
- *
- * @param session The session connection object to use
- */
-export const SessionContextMock = jest.fn<
-  ISessionContext,
-  [Partial<SessionContext.IOptions>, Session.ISessionConnection | null]
->((options, connection) => {
-  const session =
-    connection ||
-    new SessionConnectionMock(
-      {
-        model: {
-          path: options.path || '',
-          type: options.type || '',
-          name: options.name || ''
-        }
-      },
-      null
-    );
-  const thisObject: ISessionContext = {
-    ...jest.requireActual('@jupyterlab/apputils'),
-    ...options,
-    path: session.path,
-    type: session.type,
-    name: session.name,
-    kernel: session.kernel,
-    session,
-    dispose: jest.fn(),
-    initialize: jest.fn(() => Promise.resolve()),
-    ready: Promise.resolve(),
-    changeKernel: jest.fn(partialModel => {
-      return Private.changeKernel(
-        session.kernel || Private.RUNNING_KERNELS[0],
-        partialModel!
-      );
-    }),
-    shutdown: jest.fn(() => Promise.resolve())
-  } as any; // FIXME: fix the typing error this any cast is ignoring
-
-  const disposedSignal = new Signal<ISessionContext, undefined>(thisObject);
-
-  const propertyChangedSignal = new Signal<
-    ISessionContext,
-    'path' | 'name' | 'type'
-  >(thisObject);
-
-  const statusChangedSignal = new Signal<ISessionContext, Kernel.Status>(
-    thisObject
-  );
-  const kernelChangedSignal = new Signal<
-    ISessionContext,
-    Session.ISessionConnection.IKernelChangedArgs
-  >(thisObject);
-
-  const iopubMessageSignal = new Signal<
-    ISessionContext,
-    KernelMessage.IIOPubMessage
-  >(thisObject);
-
-  session!.statusChanged.connect((_, args) => {
-    statusChangedSignal.emit(args);
-  }, thisObject);
-
-  session!.iopubMessage.connect((_, args) => {
-    iopubMessageSignal.emit(args);
-  });
-
-  session!.kernelChanged.connect((_, args) => {
-    kernelChangedSignal.emit(args);
-  });
-
-  session!.pendingInput.connect((_, args) => {
-    (thisObject as any).pendingInput = args;
-  });
-
-  (thisObject as any).statusChanged = statusChangedSignal;
-  (thisObject as any).kernelChanged = kernelChangedSignal;
-  (thisObject as any).iopubMessage = iopubMessageSignal;
-  (thisObject as any).propertyChanged = propertyChangedSignal;
-  (thisObject as any).disposed = disposedSignal;
-  (thisObject as any).session = session;
-  (thisObject as any).pendingInput = false;
-
-  return thisObject;
-});
-
-/**
- * A mock contents manager.
- */
-export const ContentsManagerMock = jest.fn<Contents.IManager, []>(() => {
-  const files = new Map<string, Contents.IModel>();
-  const dummy = new ContentsManager();
-  const checkpoints = new Map<string, Contents.ICheckpointModel>();
-  const checkPointContent = new Map<string, string>();
-
-  const baseModel = Private.createFile({ type: 'directory' });
-  files.set('', { ...baseModel, path: '', name: '' });
-
-  const thisObject: Contents.IManager = {
-    ...jest.requireActual('@jupyterlab/services'),
-    newUntitled: jest.fn(options => {
-      const model = Private.createFile(options || {});
-      files.set(model.path, model);
-      fileChangedSignal.emit({
-        type: 'new',
-        oldValue: null,
-        newValue: model
-      });
-      return Promise.resolve(model);
-    }),
-    createCheckpoint: jest.fn(path => {
-      const lastModified = new Date().toISOString();
-      const data = { id: UUID.uuid4(), last_modified: lastModified };
-      checkpoints.set(path, data);
-      checkPointContent.set(path, files.get(path)?.content);
-      return Promise.resolve(data);
-    }),
-    listCheckpoints: jest.fn(path => {
-      const p = checkpoints.get(path);
-      if (p !== undefined) {
-        return Promise.resolve([p]);
-      }
-      return Promise.resolve([]);
-    }),
-    deleteCheckpoint: jest.fn(path => {
-      if (!checkpoints.has(path)) {
-        return Private.makeResponseError(404);
-      }
-      checkpoints.delete(path);
-      return Promise.resolve();
-    }),
-    restoreCheckpoint: jest.fn(path => {
-      if (!checkpoints.has(path)) {
-        return Private.makeResponseError(404);
-      }
-      (files.get(path) as any).content = checkPointContent.get(path);
-      return Promise.resolve();
-    }),
-    getModelDBFactory: jest.fn(() => {
-      return null;
-    }),
-    normalize: jest.fn(path => {
-      return dummy.normalize(path);
-    }),
-    localPath: jest.fn(path => {
-      return dummy.localPath(path);
-    }),
-    resolvePath: jest.fn((root, path) => {
-      return dummy.resolvePath(root, path);
-    }),
-    get: jest.fn((path, options) => {
-      path = Private.fixSlash(path);
-      if (!files.has(path)) {
-        return Private.makeResponseError(404);
-      }
-      const model = files.get(path)!;
-      if (model.type === 'directory') {
-        if (options?.content !== false) {
-          const content: Contents.IModel[] = [];
-          files.forEach(fileModel => {
-            if (PathExt.dirname(fileModel.path) == model.path) {
-              content.push(fileModel);
-            }
-          });
-          return Promise.resolve({ ...model, content });
-        }
-        return Promise.resolve(model);
-      }
-      if (options?.content != false) {
-        return Promise.resolve(model);
-      }
-      return Promise.resolve({ ...model, content: '' });
-    }),
-    driveName: jest.fn(path => {
-      return dummy.driveName(path);
-    }),
-    rename: jest.fn((oldPath, newPath) => {
-      oldPath = Private.fixSlash(oldPath);
-      newPath = Private.fixSlash(newPath);
-      if (!files.has(oldPath)) {
-        return Private.makeResponseError(404);
-      }
-      const oldValue = files.get(oldPath)!;
-      files.delete(oldPath);
-      const name = PathExt.basename(newPath);
-      const newValue = { ...oldValue, name, path: newPath };
-      files.set(newPath, newValue);
-      fileChangedSignal.emit({
-        type: 'rename',
-        oldValue,
-        newValue
-      });
-      return Promise.resolve(newValue);
-    }),
-    delete: jest.fn(path => {
-      path = Private.fixSlash(path);
-      if (!files.has(path)) {
-        return Private.makeResponseError(404);
-      }
-      const oldValue = files.get(path)!;
-      files.delete(path);
-      fileChangedSignal.emit({
-        type: 'delete',
-        oldValue,
-        newValue: null
-      });
-      return Promise.resolve(void 0);
-    }),
-    save: jest.fn((path, options) => {
-      if (path == 'readonly.txt') {
-        return Private.makeResponseError(403);
-      }
-      path = Private.fixSlash(path);
-      const timeStamp = new Date().toISOString();
-      if (files.has(path)) {
-        files.set(path, {
-          ...files.get(path)!,
-          ...options,
-          last_modified: timeStamp
-        });
-      } else {
-        files.set(path, {
-          path,
-          name: PathExt.basename(path),
-          content: '',
-          writable: true,
-          created: timeStamp,
-          type: 'file',
-          format: 'text',
-          mimetype: 'plain/text',
-          ...options,
-          last_modified: timeStamp
-        });
-      }
-      fileChangedSignal.emit({
-        type: 'save',
-        oldValue: null,
-        newValue: files.get(path)!
-      });
-      return Promise.resolve(files.get(path)!);
-    }),
-    getDownloadUrl: jest.fn(path => {
-      return dummy.getDownloadUrl(path);
-    }),
-    addDrive: jest.fn(drive => {
-      dummy.addDrive(drive);
-    }),
-    dispose: jest.fn()
-  };
-
-  const fileChangedSignal = new Signal<
-    Contents.IManager,
-    Contents.IChangedArgs
-  >(thisObject);
-  (thisObject as any).fileChanged = fileChangedSignal;
-  return thisObject;
-});
-
-/**
- * A mock sessions manager.
- */
-export const SessionManagerMock = jest.fn<Session.IManager, []>(() => {
-  let sessions: Session.IModel[] = [];
-  const thisObject: Session.IManager = {
-    ...jest.requireActual('@jupyterlab/services'),
-    ready: Promise.resolve(void 0),
-    isReady: true,
-    startNew: jest.fn(options => {
-      const session = new SessionConnectionMock({ model: options }, null);
-      sessions.push(session.model);
-      runningChangedSignal.emit(sessions);
-      return Promise.resolve(session);
-    }),
-    connectTo: jest.fn(options => {
-      return new SessionConnectionMock(options, null);
-    }),
-    stopIfNeeded: jest.fn(path => {
-      const length = sessions.length;
-      sessions = sessions.filter(model => model.path !== path);
-      if (sessions.length !== length) {
-        runningChangedSignal.emit(sessions);
-      }
-      return Promise.resolve(void 0);
-    }),
-    refreshRunning: jest.fn(() => Promise.resolve(void 0)),
-    running: jest.fn(() => new ArrayIterator(sessions))
-  };
-
-  const runningChangedSignal = new Signal<Session.IManager, Session.IModel[]>(
-    thisObject
-  );
-  (thisObject as any).runningChanged = runningChangedSignal;
-  return thisObject;
-});
-
-/**
- * A mock kernel specs manager
- */
-export const KernelSpecManagerMock = jest.fn<KernelSpec.IManager, []>(() => {
-  const thisObject: KernelSpec.IManager = {
-    ...jest.requireActual('@jupyterlab/services'),
-    specs: { default: DEFAULT_NAME, kernelspecs: KERNELSPECS },
-    isReady: true,
-    ready: Promise.resolve(void 0),
-    refreshSpecs: jest.fn(() => Promise.resolve(void 0))
-  };
-  return thisObject;
-});
-
-/**
- * A mock service manager.
- */
-export const ServiceManagerMock = jest.fn<ServiceManager.IManager, []>(() => {
-  const thisObject: ServiceManager.IManager = {
-    ...jest.requireActual('@jupyterlab/services'),
-    ready: Promise.resolve(void 0),
-    isReady: true,
-    contents: new ContentsManagerMock(),
-    sessions: new SessionManagerMock(),
-    kernelspecs: new KernelSpecManagerMock(),
-    dispose: jest.fn()
-  };
-  return thisObject;
-});
-
-/**
- * A mock kernel shell future.
- */
-export const MockShellFuture = jest.fn<
-  Kernel.IShellFuture,
-  [KernelMessage.IShellMessage]
->((result: KernelMessage.IShellMessage) => {
-  const thisObject: Kernel.IShellFuture = {
-    ...jest.requireActual('@jupyterlab/services'),
-    dispose: jest.fn(),
-    done: Promise.resolve(result)
-  };
-  return thisObject;
-});
-
-/**
- * Create a context for a file.
- */
-export async function createFileContext(
-  startKernel = false,
-  manager?: ServiceManager.IManager
-): Promise<Context> {
-  const path = UUID.uuid4() + '.txt';
-  manager = manager || new ServiceManagerMock();
-  const factory = new TextModelFactory();
-
-  const context = new Context({
-    manager: manager || new ServiceManagerMock(),
-    factory,
-    path,
-    kernelPreference: {
-      shouldStart: startKernel,
-      canStart: startKernel,
-      autoStartDefault: startKernel
-    }
-  });
-  await context.initialize(true);
-  await context.sessionContext.initialize();
-  return context;
-}
-
-/**
- * A namespace for module private data.
- */
-namespace Private {
-  export function flattenArray<T>(arr: T[][]): T[] {
-    const result: T[] = [];
-
-    arr.forEach(innerArr => {
-      innerArr.forEach(elem => {
-        result.push(elem);
-      });
-    });
-
-    return result;
-  }
-
-  export type RecursivePartial<T> = {
-    [P in keyof T]?: RecursivePartial<T[P]>;
-  };
-
-  export function createFile(
-    options?: Contents.ICreateOptions
-  ): Contents.IModel {
-    options = options || {};
-    let name = UUID.uuid4();
-    switch (options.type) {
-      case 'directory':
-        name = `Untitled Folder_${name}`;
-        break;
-      case 'notebook':
-        name = `Untitled_${name}.ipynb`;
-        break;
-      default:
-        name = `untitled_${name}${options.ext || '.txt'}`;
-    }
-
-    const path = PathExt.join(options.path || '', name);
-    let content = '';
-    if (options.type === 'notebook') {
-      content = JSON.stringify({});
-    }
-    const timeStamp = new Date().toISOString();
-    return {
-      path,
-      content,
-      name,
-      last_modified: timeStamp,
-      writable: true,
-      created: timeStamp,
-      type: options.type || 'file',
-      format: 'text',
-      mimetype: 'plain/text'
-    };
-  }
-
-  export function fixSlash(path: string): string {
-    if (path.endsWith('/')) {
-      path = path.slice(0, path.length - 1);
-    }
-    return path;
-  }
-
-  export function makeResponseError<T>(status: number): Promise<T> {
-    const resp = new Response(void 0, { status });
-    return Promise.reject(new ServerConnection.ResponseError(resp));
-  }
-
-  export function cloneKernel(
-    options: RecursivePartial<Kernel.IKernelConnection.IOptions>
-  ): Kernel.IKernelConnection {
-    return new KernelMock({ ...options, clientId: UUID.uuid4() });
-  }
-
-  // Get the kernel spec for kernel name
-  export function kernelSpecForKernelName(name: string) {
-    return KERNELSPECS[name];
-  }
-
-  // Get the kernel info for kernel name
-  export function getInfo(name: string): KernelMessage.IInfoReply {
-    return {
-      protocol_version: '1',
-      implementation: 'foo',
-      implementation_version: '1',
-      language_info: {
-        version: '1',
-        name
-      },
-      banner: 'hello, world!',
-      help_links: [],
-      status: 'ok'
-    };
-  }
-
-  export function changeKernel(
-    kernel: Kernel.IKernelConnection,
-    partialModel: Partial<Kernel.IModel>
-  ): Promise<Kernel.IModel> {
-    if (partialModel.id) {
-      const kernelIdx = KERNEL_MODELS.findIndex(model => {
-        return model.id === partialModel.id;
-      });
-      if (kernelIdx !== -1) {
-        (kernel.model as any) = RUNNING_KERNELS[kernelIdx].model;
-        (kernel.id as any) = partialModel.id;
-        return Promise.resolve(RUNNING_KERNELS[kernelIdx]);
-      } else {
-        throw new Error(
-          `Unable to change kernel to one with id: ${partialModel.id}`
-        );
-      }
-    } else if (partialModel.name) {
-      const kernelIdx = KERNEL_MODELS.findIndex(model => {
-        return model.name === partialModel.name;
-      });
-      if (kernelIdx !== -1) {
-        (kernel.model as any) = RUNNING_KERNELS[kernelIdx].model;
-        (kernel.id as any) = partialModel.id;
-        return Promise.resolve(RUNNING_KERNELS[kernelIdx]);
-      } else {
-        throw new Error(
-          `Unable to change kernel to one with name: ${partialModel.name}`
-        );
-      }
-    } else {
-      throw new Error(`Unable to change kernel`);
-    }
-  }
-
-  // This list of running kernels simply mirrors the KERNEL_MODELS and KERNELSPECS lists
-  export const RUNNING_KERNELS: Kernel.IKernelConnection[] = KERNEL_MODELS.map(
-    (model, _) => {
-      return new KernelMock({ model });
-    }
-  );
-
-  export const lastMessageProperty = new AttachedProperty<
-    Kernel.IKernelConnection,
-    string
-  >({
-    name: 'lastMessageId',
-    create: () => ''
-  });
-}
+export {
+  createFileContext,
+  createSimpleSessionContext,
+  DocumentWidgetOpenerMock,
+  emitIopubMessage,
+  SessionContextMock,
+  updateKernelStatus
+} from '@jupyterlab/docregistry/lib/testutils';
+export {
+  cloneKernel,
+  ContentsManagerMock,
+  DEFAULT_NAME,
+  KERNELSPECS,
+  KERNEL_MODELS,
+  NOTEBOOK_PATHS,
+  SessionConnectionMock
+} from '@jupyterlab/services/lib/testutils';
diff --git a/testutils/src/notebook-utils.ts b/testutils/src/notebook-utils.ts
deleted file mode 100644
index 000ccf26ee5f..000000000000
--- a/testutils/src/notebook-utils.ts
+++ /dev/null
@@ -1,211 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import { UUID } from '@lumino/coreutils';
-
-import { editorServices } from '@jupyterlab/codemirror';
-
-import { CodeEditorWrapper } from '@jupyterlab/codeeditor';
-
-import { Clipboard } from '@jupyterlab/apputils';
-
-import * as nbformat from '@jupyterlab/nbformat';
-
-import { Context, DocumentRegistry } from '@jupyterlab/docregistry';
-
-import {
-  INotebookModel,
-  Notebook,
-  NotebookModel,
-  NotebookModelFactory,
-  NotebookPanel,
-  NotebookWidgetFactory,
-  StaticNotebook
-} from '@jupyterlab/notebook';
-
-import { RenderMimeRegistry } from '@jupyterlab/rendermime';
-
-import { Cell, CodeCellModel } from '@jupyterlab/cells';
-
-import { defaultRenderMime as localRendermime } from './rendermime';
-
-import * as Mock from './mock';
-
-/**
- * Stub for the require() function.
- */
-declare let require: any;
-
-/**
- * The default notebook content.
- */
-// tslint:disable-next-line
-
-export namespace NBTestUtils {
-  /**
-   * The default outputs used for testing.
-   */
-  export const DEFAULT_OUTPUTS: nbformat.IOutput[] = [
-    {
-      name: 'stdout',
-      output_type: 'stream',
-      text: ['hello world\n', '0\n', '1\n', '2\n']
-    },
-    {
-      name: 'stderr',
-      output_type: 'stream',
-      text: ['output to stderr\n']
-    },
-    {
-      name: 'stderr',
-      output_type: 'stream',
-      text: ['output to stderr2\n']
-    },
-    {
-      output_type: 'execute_result',
-      execution_count: 1,
-      data: { 'text/plain': 'foo' },
-      metadata: {}
-    },
-    {
-      output_type: 'display_data',
-      data: { 'text/plain': 'hello, world' },
-      metadata: {}
-    },
-    {
-      output_type: 'error',
-      ename: 'foo',
-      evalue: 'bar',
-      traceback: ['fizz', 'buzz']
-    }
-  ];
-
-  export const DEFAULT_CONTENT: nbformat.INotebookContent = require('../default.json') as nbformat.INotebookContent;
-  export const DEFAULT_CONTENT_45: nbformat.INotebookContent = require('../default-45.json') as nbformat.INotebookContent;
-
-  export const defaultEditorConfig = { ...StaticNotebook.defaultEditorConfig };
-
-  export const editorFactory = editorServices.factoryService.newInlineEditor.bind(
-    editorServices.factoryService
-  );
-
-  export const mimeTypeService = editorServices.mimeTypeService;
-
-  /**
-   * Get a copy of the default rendermime instance.
-   */
-  export function defaultRenderMime(): RenderMimeRegistry {
-    return localRendermime();
-  }
-
-  export const clipboard = Clipboard.getInstance();
-
-  /**
-   * Create a base cell content factory.
-   */
-  export function createBaseCellFactory(): Cell.IContentFactory {
-    return new Cell.ContentFactory({ editorFactory });
-  }
-
-  /**
-   * Create a new code cell content factory.
-   */
-  export function createCodeCellFactory(): Cell.IContentFactory {
-    return new Cell.ContentFactory({ editorFactory });
-  }
-
-  /**
-   * Create a cell editor widget.
-   */
-  export function createCellEditor(model?: CodeCellModel): CodeEditorWrapper {
-    return new CodeEditorWrapper({
-      model: model || new CodeCellModel({}),
-      factory: editorFactory
-    });
-  }
-
-  /**
-   * Create a default notebook content factory.
-   */
-  export function createNotebookFactory(): Notebook.IContentFactory {
-    return new Notebook.ContentFactory({ editorFactory });
-  }
-
-  /**
-   * Create a default notebook panel content factory.
-   */
-  export function createNotebookPanelFactory(): NotebookPanel.IContentFactory {
-    return new NotebookPanel.ContentFactory({ editorFactory });
-  }
-
-  /**
-   * Create a notebook widget.
-   */
-  export function createNotebook(): Notebook {
-    return new Notebook({
-      rendermime: defaultRenderMime(),
-      contentFactory: createNotebookFactory(),
-      mimeTypeService
-    });
-  }
-
-  /**
-   * Create a notebook panel widget.
-   */
-  export function createNotebookPanel(
-    context: Context<INotebookModel>
-  ): NotebookPanel {
-    return new NotebookPanel({
-      content: createNotebook(),
-      context
-    });
-  }
-
-  /**
-   * Populate a notebook with default content.
-   */
-  export function populateNotebook(notebook: Notebook): void {
-    const model = new NotebookModel();
-    model.fromJSON(DEFAULT_CONTENT);
-    notebook.model = model;
-  }
-
-  export function createNotebookWidgetFactory(
-    toolbarFactory?: (widget: NotebookPanel) => DocumentRegistry.IToolbarItem[]
-  ): NotebookWidgetFactory {
-    return new NotebookWidgetFactory({
-      name: 'notebook',
-      fileTypes: ['notebook'],
-      rendermime: defaultRenderMime(),
-      toolbarFactory,
-      contentFactory: createNotebookPanelFactory(),
-      mimeTypeService: mimeTypeService,
-      editorConfig: defaultEditorConfig
-    });
-  }
-
-  /**
-   * Create a context for a file.
-   */
-  export async function createMockContext(
-    startKernel = false
-  ): Promise<Context<INotebookModel>> {
-    const path = UUID.uuid4() + '.txt';
-    const manager = new Mock.ServiceManagerMock();
-    const factory = new NotebookModelFactory({});
-
-    const context = new Context({
-      manager,
-      factory,
-      path,
-      kernelPreference: {
-        shouldStart: startKernel,
-        canStart: startKernel,
-        autoStartDefault: startKernel
-      }
-    });
-    await context.initialize(true);
-    await context.sessionContext.initialize();
-    return context;
-  }
-}
diff --git a/testutils/src/rendermime.ts b/testutils/src/rendermime.ts
deleted file mode 100644
index 289142eba84a..000000000000
--- a/testutils/src/rendermime.ts
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) Jupyter Development Team.
-// Distributed under the terms of the Modified BSD License.
-
-import json2html from 'json-to-html';
-
-import {
-  IRenderMime,
-  RenderedHTML,
-  RenderMimeRegistry,
-  standardRendererFactories
-} from '@jupyterlab/rendermime';
-
-/**
- * Get a copy of the default rendermime instance.
- */
-export function defaultRenderMime(): RenderMimeRegistry {
-  return Private.rendermime.clone();
-}
-
-/**
- * A namespace for private data.
- */
-namespace Private {
-  class JSONRenderer extends RenderedHTML {
-    mimeType = 'text/html';
-
-    renderModel(model: IRenderMime.IMimeModel): Promise<void> {
-      const source = model.data['application/json'];
-      model.setData({ data: { 'text/html': json2html(source) } });
-      return super.renderModel(model);
-    }
-  }
-
-  const jsonRendererFactory = {
-    mimeTypes: ['application/json'],
-    safe: true,
-    createRenderer(
-      options: IRenderMime.IRendererOptions
-    ): IRenderMime.IRenderer {
-      return new JSONRenderer(options);
-    }
-  };
-
-  export const rendermime = new RenderMimeRegistry({
-    initialFactories: standardRendererFactories
-  });
-  rendermime.addFactory(jsonRendererFactory, 10);
-}
diff --git a/testutils/tsconfig.json b/testutils/tsconfig.json
index a59143ff5009..9971a7d8d497 100644
--- a/testutils/tsconfig.json
+++ b/testutils/tsconfig.json
@@ -3,30 +3,16 @@
   "compilerOptions": {
     "outDir": "lib",
     "rootDir": "src",
-    "module": "commonjs"
+    "module": "commonjs",
+    "types": ["node"]
   },
   "include": ["src/*"],
   "references": [
     {
-      "path": "../packages/apputils"
-    },
-    {
-      "path": "../packages/cells"
-    },
-    {
-      "path": "../packages/codeeditor"
-    },
-    {
-      "path": "../packages/codemirror"
-    },
-    {
-      "path": "../packages/coreutils"
+      "path": "../packages/application"
     },
     {
-      "path": "../packages/docregistry"
-    },
-    {
-      "path": "../packages/nbformat"
+      "path": "../packages/apputils"
     },
     {
       "path": "../packages/notebook"
@@ -35,7 +21,7 @@
       "path": "../packages/rendermime"
     },
     {
-      "path": "../packages/services"
+      "path": "../packages/testing"
     }
   ]
 }
diff --git a/testutils/tsconfig.test.json b/testutils/tsconfig.test.json
deleted file mode 100644
index d9e4f2d1ec58..000000000000
--- a/testutils/tsconfig.test.json
+++ /dev/null
@@ -1,69 +0,0 @@
-{
-  "extends": "../tsconfigbase.test",
-  "include": ["src/*", "test/*"],
-  "references": [
-    {
-      "path": "../packages/apputils"
-    },
-    {
-      "path": "../packages/cells"
-    },
-    {
-      "path": "../packages/codeeditor"
-    },
-    {
-      "path": "../packages/codemirror"
-    },
-    {
-      "path": "../packages/coreutils"
-    },
-    {
-      "path": "../packages/docregistry"
-    },
-    {
-      "path": "../packages/nbformat"
-    },
-    {
-      "path": "../packages/notebook"
-    },
-    {
-      "path": "../packages/rendermime"
-    },
-    {
-      "path": "../packages/services"
-    },
-    {
-      "path": "."
-    },
-    {
-      "path": "../packages/apputils"
-    },
-    {
-      "path": "../packages/cells"
-    },
-    {
-      "path": "../packages/codeeditor"
-    },
-    {
-      "path": "../packages/codemirror"
-    },
-    {
-      "path": "../packages/coreutils"
-    },
-    {
-      "path": "../packages/docregistry"
-    },
-    {
-      "path": "../packages/nbformat"
-    },
-    {
-      "path": "../packages/notebook"
-    },
-    {
-      "path": "../packages/rendermime"
-    },
-    {
-      "path": "../packages/services"
-    }
-  ]
-}
diff --git a/tsconfig.eslint.json b/tsconfig.eslint.json
index 927744729693..e3f5cca15623 100644
--- a/tsconfig.eslint.json
+++ b/tsconfig.eslint.json
@@ -4,27 +4,28 @@
     "packages/**/src/**/*",
     "packages/**/test/**/*",
     "packages/**/style/**/*",
-    "testutils/src/*",
+    "testutils/**/*",
     "builder/**/*",
     "buildutils/**/*",
     "tests/**/*",
     "dev_mode/*",
     "docs/**/*",
     ".eslintrc.js",
+    ".eslintrc.typecheck.js",
     "examples/**/*",
     "galata/.eslintrc.js",
     "galata/*.config.js",
+    "galata/extension/**/*",
     "galata/src/**/*",
     "galata/test/**/*",
     "galata/style/**/*",
     "*",
     "packages/services/examples/**/*",
+    "packages/testing/**/*",
     "packages/**/*.config.js",
     "packages/metapackage/build-doc-index.js",
-    "packages/**/stories/*",
     "scripts/*",
     "jupyterlab/*",
-    "jupyterlab/staging/*",
-    "testutils/**/*"
+    "jupyterlab/staging/*"
   ]
 }
diff --git a/tsconfigbase.json b/tsconfigbase.json
index 4b68a32401fc..347c6e3082bb 100644
--- a/tsconfigbase.json
+++ b/tsconfigbase.json
@@ -17,7 +17,7 @@
     "resolveJsonModule": true,
     "sourceMap": true,
     "strictNullChecks": true,
-    "target": "es2017",
+    "target": "ES2018",
     "types": []
   }
 }
diff --git a/tsconfigbase.test.json b/tsconfigbase.test.json
index d1e9c841ec39..b95721c156e3 100644
--- a/tsconfigbase.test.json
+++ b/tsconfigbase.test.json
@@ -6,9 +6,9 @@
     "noUnusedLocals": true,
     "module": "commonjs",
     "moduleResolution": "node",
-    "target": "es2018",
+    "target": "ES2018",
     "outDir": "lib",
-    "lib": ["DOM", "ES2018"],
+    "lib": ["DOM", "DOM.iterable"],
     "types": ["jest", "node"],
     "jsx": "react",
     "resolveJsonModule": true,
diff --git a/tsconfigdoc.json b/tsconfigdoc.json
index b31636c680ac..30b2d309d274 100644
--- a/tsconfigdoc.json
+++ b/tsconfigdoc.json
@@ -3,7 +3,8 @@
   "extends": "./tsconfigbase",
   "exclude": [
     "**/test/**",
-    "**/testutils/**"
+    "**/testutils/**",
+    "packages/testing/**"
   ],
   "compilerOptions": {
     "strictNullChecks": false,
@@ -12,6 +13,11 @@
         "./packages/*/src"
       ]
     },
+    "lib": [
+      "DOM",
+      "DOM.iterable",
+      "es2019.array"
+    ],
     "moduleResolution": "node",
     "types": [
       "jest",
@@ -40,9 +46,6 @@
     {
       "path": "./packages/cells"
     },
-    {
-      "path": "./packages/celltags"
-    },
     {
       "path": "./packages/celltags-extension"
     },
@@ -55,12 +58,6 @@
     {
       "path": "./packages/codemirror-extension"
     },
-    {
-      "path": "./packages/collaboration"
-    },
-    {
-      "path": "./packages/collaboration-extension"
-    },
     {
       "path": "./packages/completer"
     },
@@ -94,12 +91,6 @@
     {
       "path": "./packages/docmanager-extension"
     },
-    {
-      "path": "./packages/docprovider"
-    },
-    {
-      "path": "./packages/docprovider-extension"
-    },
     {
       "path": "./packages/docregistry"
     },
@@ -169,6 +160,12 @@
     {
       "path": "./packages/logconsole-extension"
     },
+    {
+      "path": "./packages/lsp"
+    },
+    {
+      "path": "./packages/lsp-extension"
+    },
     {
       "path": "./packages/mainmenu"
     },
@@ -182,10 +179,16 @@
       "path": "./packages/markdownviewer-extension"
     },
     {
-      "path": "./packages/mathjax2"
+      "path": "./packages/markedparser-extension"
+    },
+    {
+      "path": "./packages/mathjax-extension"
+    },
+    {
+      "path": "./packages/metadataform"
     },
     {
-      "path": "./packages/mathjax2-extension"
+      "path": "./packages/metadataform-extension"
     },
     {
       "path": "./packages/nbformat"
@@ -235,9 +238,6 @@
     {
       "path": "./packages/settingregistry"
     },
-    {
-      "path": "./packages/shared-models"
-    },
     {
       "path": "./packages/shortcuts-extension"
     },
@@ -286,12 +286,6 @@
     {
       "path": "./packages/ui-components-extension"
     },
-    {
-      "path": "./packages/vdom"
-    },
-    {
-      "path": "./packages/vdom-extension"
-    },
     {
       "path": "./packages/vega5-extension"
     }
diff --git a/typedoc.js b/typedoc.js
index a6ce92425eb2..d2b89bda4c1a 100644
--- a/typedoc.js
+++ b/typedoc.js
@@ -1,97 +1,69 @@
+/*
+ * Copyright (c) Jupyter Development Team.
+ * Distributed under the terms of the Modified BSD License.
+ */
+
 const fs = require('fs');
 
+// Most of the -extension packages are useless as their
+// public API is the plugins array. Add them only if they
+// export other items.
 const packages = [
-  // 'application-extension',
   'application',
-  'apputils-extension',
   'apputils',
   'attachments',
   'cells',
-  'celltags-extension',
-  'celltags',
   'codeeditor',
-  'codemirror-extension',
   'codemirror',
-  'collaboration',
-  'collaboration-extension',
-  'completer-extension',
   'completer',
-  'console-extension',
   'console',
   'coreutils',
-  'csvviewer-extension',
   'csvviewer',
-  'debugger-extension',
   'debugger',
-  'docprovider-extension',
-  'docprovider',
   'docmanager-extension',
   'docmanager',
   'docregistry',
   'documentsearch-extension',
   'documentsearch',
-  'extensionmanager-extension',
   'extensionmanager',
-  'filebrowser-extension',
   'filebrowser',
   'fileeditor-extension',
   'fileeditor',
-  'help-extension',
-  'htmlviewer-extension',
   'htmlviewer',
   'hub-extension',
   'imageviewer-extension',
   'imageviewer',
-  'inspector-extension',
   'inspector',
   'javascript-extension',
   'json-extension',
-  'launcher-extension',
   'launcher',
   'logconsole-extension',
   'logconsole',
+  'lsp-extension',
   'mainmenu-extension',
   'mainmenu',
-  'markdownviewer-extension',
   'markdownviewer',
-  'mathjax2-extension',
-  'mathjax2',
-  // 'metapackage',
-  // 'nbconvert-css',
+  'mathjax-extension',
   'nbformat',
-  'notebook-extension',
   'notebook',
   'observables',
   'outputarea',
   'pdf-extension',
   'property-inspector',
-  'rendermime-extension',
   'rendermime-interfaces',
   'rendermime',
   'running-extension',
   'running',
   'services',
-  'settingeditor-extension',
   'settingeditor',
   'settingregistry',
-  'shortcuts-extension',
   'statedb',
-  'statusbar-extension',
   'statusbar',
-  'terminal-extension',
   'terminal',
-  'theme-dark-extension',
-  'theme-light-extension',
   'toc',
-  'toc-extension',
-  'tooltip-extension',
   'tooltip',
-  'translation-extension',
   'translation',
-  'ui-components-extension',
   'ui-components',
-  'vdom-extension',
-  'vdom',
   'vega5-extension'
 ];
 
@@ -103,27 +75,157 @@ const entryPoints = packages
 
 const exclude =
   packages.flatMap(p => [`packages/${p}/test`]) +
-  [
-    'packages/application-extension/src/index.tsx'
-    //'packages/*/test/*.spec.ts',
-  ];
+  ['packages/application-extension'];
 
 module.exports = {
   entryPoints,
   exclude,
+  externalSymbolLinkMappings: {
+    '@codemirror/language': {
+      LanguageSupport:
+        'https://codemirror.net/docs/ref/#language.LanguageSupport'
+    },
+    '@codemirror/state': {
+      Extension: 'https://codemirror.net/docs/ref/#state.Extension',
+      SelectionRange: 'https://codemirror.net/docs/ref/#state.SelectionRange',
+      StateEffect: 'https://codemirror.net/docs/ref/#state.StateEffect'
+    },
+    '@jupyter/ydoc': {
+      createStandaloneCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/functions/createStandaloneCell.html',
+      DocumentChange:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/types/DocumentChange.html',
+      FileChange:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/types/FileChange.html',
+      IMapChange:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/IMapChange.html',
+      ISharedAttachmentsCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedAttachmentsCell.html',
+      ISharedCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/types/ISharedCell.html',
+      ISharedCodeCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedCodeCell.html',
+      ISharedDocument:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedDocument.html',
+      ISharedFile:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedFile.html',
+      ISharedMarkdownCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedMarkdownCell.html',
+      ISharedNotebook:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedNotebook-1.html',
+      ISharedRawCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedRawCell.html',
+      ISharedText:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/ISharedText.html',
+      IYText:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/interfaces/IYText.html',
+      NotebookChange:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/types/NotebookChange.html',
+      SourceChange:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/types/SourceChange.html',
+      YCodeCell:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/classes/YCodeCell.html',
+      YDocument:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/classes/YDocument-1.html',
+      YFile:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/classes/YFile.html',
+      YNotebook:
+        'https://jupyter-ydoc.readthedocs.io/en/latest/api/classes/YNotebook.html'
+    },
+    '@lumino/application': {
+      Application:
+        'https://lumino.readthedocs.io/en/latest/api/classes/application.Application-1.html',
+      IPlugin:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/application.IPlugin.html'
+    },
+    '@lumino/coreutils': {
+      JSONObject:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/coreutils.JSONObject.html',
+      JSONValue:
+        'https://lumino.readthedocs.io/en/latest/api/types/coreutils.JSONValue.html',
+      PartialJSONValue:
+        'https://lumino.readthedocs.io/en/latest/api/types/coreutils.PartialJSONValue.html',
+      ReadonlyJSONObject:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/coreutils.ReadonlyJSONObject.html',
+      ReadonlyPartialJSONObject:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/coreutils.ReadonlyPartialJSONObject.html',
+      Token:
+        'https://lumino.readthedocs.io/en/latest/api/classes/coreutils.Token.html'
+    },
+    '@lumino/disposable': {
+      IDisposable:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/disposable.IDisposable.html',
+      IObservableDisposable:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/disposable.IObservableDisposable.html'
+    },
+    '@lumino/signaling': {
+      ISignal:
+        'https://lumino.readthedocs.io/en/latest/api/interfaces/signaling.ISignal.html',
+      Signal:
+        'https://lumino.readthedocs.io/en/latest/api/classes/signaling.Signal-1.html'
+    },
+    '@lumino/virtualdom': {
+      VirtualElement:
+        'https://lumino.readthedocs.io/en/stable/api/modules/virtualdom.VirtualElement.html',
+      'VirtualElement.IRenderer':
+        'https://lumino.readthedocs.io/en/latest/api/types/virtualdom.VirtualElement.IRenderer.html'
+    },
+    '@lumino/widgets': {
+      ContextMenu:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.ContextMenu-1.html',
+      'ContextMenu.IOptions':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.ContextMenu.IOptions.html',
+      DockPanel:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.DockPanel-1.html',
+      'DockPanel.IOptions':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.DockPanel.IOptions.html',
+      Menu: 'https://lumino.readthedocs.io/en/stable/api/classes/widgets.Menu-1.html',
+      'Menu.IItem':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.Menu.IItem.html',
+      'Menu.IItemOptions':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.Menu.IItemOptions.html',
+      'MenuBar.Renderer':
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.MenuBar.Renderer.html',
+      'MenuBar.IRenderData':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.MenuBar.IRenderData.html',
+      Panel:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.Panel-1.html',
+      PanelLayout:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.PanelLayout.html',
+      SplitPanel:
+        'https://lumino.readthedocs.io/en/latest/api/classes/widgets.SplitPanel-1.html',
+      TabBar:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.TabBar-1.html',
+      'TabBar.IOptions':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.TabBar.IOptions.html',
+      TabPanel:
+        'https://lumino.readthedocs.io/en/stable/api/classes/widgets.TabPanel-1.html',
+      'TabPanel.IOptions':
+        'https://lumino.readthedocs.io/en/stable/api/interfaces/widgets.TabPanel.IOptions.html',
+      Widget:
+        'https://lumino.readthedocs.io/en/latest/api/classes/widgets.Widget-1.html'
+    },
+    '@rjsf/utils': {
+      FieldProps:
+        'https://rjsf-team.github.io/react-jsonschema-form/docs/advanced-customization/custom-widgets-fields/#field-props'
+    },
+    yjs: {
+      RelativePosition: 'https://docs.yjs.dev/api/relative-positions',
+      UndoManager: 'https://docs.yjs.dev/api/undo-manager',
+      Text: 'https://docs.yjs.dev/api/shared-types/y.text',
+      YText: 'https://docs.yjs.dev/api/shared-types/y.text'
+    }
+  },
+  githubPages: false,
+  navigationLinks: {
+    GitHub: 'https://github.com/jupyterlab/jupyterlab',
+    Jupyter: 'https://jupyter.org'
+  },
   name: '@jupyterlab',
-  out: 'docs/api',
-  // json: 'docs/api.json',
+  plugin: ['typedoc-plugin-mdn-links'],
+  out: 'docs/source/api',
   readme: 'README.md',
-  theme: 'typedoc-theme',
+  theme: 'default',
+  titleLink: 'https://jupyterlab.readthedocs.io/en/latest',
   tsconfig: 'tsconfigdoc.json'
-
-  // theme: minimal,
-  // excludePrivate: true,
-  // excludeProtected: true,
-  // excludeExternals: true,
-  // hideGenerator: true
-
-  // gitRevision: 'master',
-  // 'sourcefile-url-prefix': `https://github.com/sinnerschrader/feature-hub/tree/${git.short()}/packages/`,
 };
diff --git a/yarn.lock b/yarn.lock
index 41e79810e63a..dbcf43acde67 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1,18035 +1,20498 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@babel/code-frame@7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.8.3.tgz#33e25903d7481181534e12ec0a25f16b6fcf419e"
-  integrity sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==
-  dependencies:
-    "@babel/highlight" "^7.8.3"
-
-"@babel/code-frame@^7.0.0", "@babel/code-frame@^7.14.5", "@babel/code-frame@^7.5.5":
-  version "7.15.8"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.15.8.tgz#45990c47adadb00c03677baa89221f7cc23d2503"
-  integrity sha512-2IAnmn8zbvC/jKYhq5Ki9I+DwjlrtMPUCH/CpHvqI4dNnlwHwsxoIhlc8WcYY5LSYknXQtAlFYuHfqAFCvQ4Wg==
-  dependencies:
-    "@babel/highlight" "^7.14.5"
-
-"@babel/compat-data@^7.13.11", "@babel/compat-data@^7.14.7", "@babel/compat-data@^7.15.0":
-  version "7.15.0"
-  resolved "https://registry.yarnpkg.com/@babel/compat-data/-/compat-data-7.15.0.tgz#2dbaf8b85334796cafbb0f5793a90a2fc010b176"
-  integrity sha512-0NqAC1IJE0S0+lL1SWFMxMkz1pKCNCjI4tr2Zx4LJSXxCLAdr6KyArnY+sno5m3yH9g737ygOyPABDsnXkpxiA==
-
-"@babel/core@^7.1.0", "@babel/core@^7.10.2", "@babel/core@^7.12.3", "@babel/core@^7.7.5":
-  version "7.15.5"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.15.5.tgz#f8ed9ace730722544609f90c9bb49162dc3bf5b9"
-  integrity sha512-pYgXxiwAgQpgM1bNkZsDEq85f0ggXMA5L7c+o3tskGMh2BunCI9QUwB9Z4jpvXUOuMdyGKiGKQiRe11VS6Jzvg==
-  dependencies:
-    "@babel/code-frame" "^7.14.5"
-    "@babel/generator" "^7.15.4"
-    "@babel/helper-compilation-targets" "^7.15.4"
-    "@babel/helper-module-transforms" "^7.15.4"
-    "@babel/helpers" "^7.15.4"
-    "@babel/parser" "^7.15.5"
-    "@babel/template" "^7.15.4"
-    "@babel/traverse" "^7.15.4"
-    "@babel/types" "^7.15.4"
-    convert-source-map "^1.7.0"
-    debug "^4.1.0"
-    gensync "^1.0.0-beta.2"
-    json5 "^2.1.2"
-    semver "^6.3.0"
-    source-map "^0.5.0"
-
-"@babel/generator@^7.12.11", "@babel/generator@^7.15.4":
-  version "7.15.4"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.15.4.tgz#85acb159a267ca6324f9793986991ee2022a05b0"
-  integrity sha512-d3itta0tu+UayjEORPNz6e1T3FtvWlP5N4V5M+lhp/CxT4oAA7/NcScnpRyspUMLK6tu9MNHmQHxRykuN2R7hw==
-  dependencies:
-    "@babel/types" "^7.15.4"
-    jsesc "^2.5.1"
-    source-map "^0.5.0"
-
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-  version "7.4.1"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.4.1.tgz#feaed255973d2e77555b83dbc08851a6c63520fa"
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-  version "3.1.0"
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-  version "6.12.6"
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-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi-align/-/ansi-align-3.0.0.tgz#b536b371cf687caaef236c18d3e21fe3797467cb"
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-  version "3.2.4"
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-  version "4.1.1"
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-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.2.0.tgz#8780b98ff9dbf5638152d1f1fe5c1d7b4442976b"
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-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-4.3.2.tgz#6b2291d1db7d98b6521d5f1efa42d0f3a9feb65e"
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-  resolved "https://registry.yarnpkg.com/ansi-html/-/ansi-html-0.0.7.tgz#813584021962a9e9e6fd039f940d12f56ca7859e"
-  integrity sha1-gTWEAhliqenm/QOflA0S9WynhZ4=
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-  version "3.0.0"
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-  version "4.1.0"
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-  version "5.0.1"
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-  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-4.3.0.tgz#edd803628ae71c04c85ae7a0906edad34b648937"
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-  version "0.6.15"
-  resolved "https://registry.yarnpkg.com/ansi-to-html/-/ansi-to-html-0.6.15.tgz#ac6ad4798a00f6aa045535d7f6a9cb9294eebea7"
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-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-2.0.0.tgz#bcb24b4f37934d9aa7ac17b4adaf89e7c76ef2eb"
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-  version "4.0.0"
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-  resolved "https://registry.yarnpkg.com/css-loader/-/css-loader-3.6.0.tgz#2e4b2c7e6e2d27f8c8f28f61bffcd2e6c91ef645"
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-    css-what "^3.2.1"
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-    nth-check "^1.0.2"
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-  version "1.0.0-alpha.37"
-  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.0.0-alpha.37.tgz#98bebd62c4c1d9f960ec340cf9f7522e30709a22"
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-  resolved "https://registry.yarnpkg.com/css-tree/-/css-tree-1.1.3.tgz#eb4870fb6fd7707327ec95c2ff2ab09b5e8db91d"
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-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-3.4.2.tgz#ea7026fcb01777edbde52124e21f327e7ae950e4"
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-  resolved "https://registry.yarnpkg.com/cssesc/-/cssesc-3.0.0.tgz#37741919903b868565e1c09ea747445cd18983ee"
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-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/csso/-/csso-4.2.0.tgz#ea3a561346e8dc9f546d6febedd50187cf389529"
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-  resolved "https://registry.yarnpkg.com/d3-dsv/-/d3-dsv-2.0.0.tgz#b37b194b6df42da513a120d913ad1be22b5fe7c5"
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-    d3-timer "1 - 2"
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-  resolved "https://registry.yarnpkg.com/d3-geo-projection/-/d3-geo-projection-3.0.0.tgz#45ad8ce756cdbfa8340b11b2988644d8e1fa42e4"
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-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
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